blob: 6c2b098b760956f90ec954e753b9b8950ccbe261 [file] [log] [blame]
James Smart43140ca2017-03-04 09:30:34 -08001
dea31012005-04-17 16:05:31 -05002/*******************************************************************
3 * This file is part of the Emulex Linux Device Driver for *
James.Smart@Emulex.Comc44ce172005-06-25 10:34:39 -04004 * Fibre Channel Host Bus Adapters. *
James Smartd080abe2017-02-12 13:52:39 -08005 * Copyright (C) 2017 Broadcom. All Rights Reserved. The term *
6 * “Broadcom” refers to Broadcom Limited and/or its subsidiaries. *
James Smart50611572016-03-31 14:12:34 -07007 * Copyright (C) 2004-2016 Emulex. All rights reserved. *
James.Smart@Emulex.Comc44ce172005-06-25 10:34:39 -04008 * EMULEX and SLI are trademarks of Emulex. *
James Smartd080abe2017-02-12 13:52:39 -08009 * www.broadcom.com *
James.Smart@Emulex.Comc44ce172005-06-25 10:34:39 -040010 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
dea31012005-04-17 16:05:31 -050011 * *
12 * This program is free software; you can redistribute it and/or *
James.Smart@Emulex.Comc44ce172005-06-25 10:34:39 -040013 * modify it under the terms of version 2 of the GNU General *
14 * Public License as published by the Free Software Foundation. *
15 * This program is distributed in the hope that it will be useful. *
16 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
17 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
18 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
19 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
20 * TO BE LEGALLY INVALID. See the GNU General Public License for *
21 * more details, a copy of which can be found in the file COPYING *
22 * included with this package. *
dea31012005-04-17 16:05:31 -050023 *******************************************************************/
24
dea31012005-04-17 16:05:31 -050025#include <linux/blkdev.h>
26#include <linux/pci.h>
27#include <linux/interrupt.h>
28#include <linux/delay.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090029#include <linux/slab.h>
Johannes Thumshirn1c2ba472016-01-20 16:22:22 +010030#include <linux/lockdep.h>
dea31012005-04-17 16:05:31 -050031
James.Smart@Emulex.Com91886522005-08-10 15:03:09 -040032#include <scsi/scsi.h>
dea31012005-04-17 16:05:31 -050033#include <scsi/scsi_cmnd.h>
34#include <scsi/scsi_device.h>
35#include <scsi/scsi_host.h>
James.Smart@Emulex.Comf888ba32005-08-10 15:03:01 -040036#include <scsi/scsi_transport_fc.h>
James Smartda0436e2009-05-22 14:51:39 -040037#include <scsi/fc/fc_fs.h>
James Smart0d878412009-10-02 15:16:56 -040038#include <linux/aer.h>
dea31012005-04-17 16:05:31 -050039
James Smart895427b2017-02-12 13:52:30 -080040#include <linux/nvme-fc-driver.h>
41
James Smartda0436e2009-05-22 14:51:39 -040042#include "lpfc_hw4.h"
dea31012005-04-17 16:05:31 -050043#include "lpfc_hw.h"
44#include "lpfc_sli.h"
James Smartda0436e2009-05-22 14:51:39 -040045#include "lpfc_sli4.h"
James Smartea2151b2008-09-07 11:52:10 -040046#include "lpfc_nl.h"
dea31012005-04-17 16:05:31 -050047#include "lpfc_disc.h"
dea31012005-04-17 16:05:31 -050048#include "lpfc.h"
James Smart895427b2017-02-12 13:52:30 -080049#include "lpfc_scsi.h"
50#include "lpfc_nvme.h"
James Smartf358dd02017-02-12 13:52:34 -080051#include "lpfc_nvmet.h"
dea31012005-04-17 16:05:31 -050052#include "lpfc_crtn.h"
53#include "lpfc_logmsg.h"
54#include "lpfc_compat.h"
James Smart858c9f62007-06-17 19:56:39 -050055#include "lpfc_debugfs.h"
James Smart04c68492009-05-22 14:52:52 -040056#include "lpfc_vport.h"
James Smart61bda8f2016-10-13 15:06:05 -070057#include "lpfc_version.h"
dea31012005-04-17 16:05:31 -050058
59/* There are only four IOCB completion types. */
60typedef enum _lpfc_iocb_type {
61 LPFC_UNKNOWN_IOCB,
62 LPFC_UNSOL_IOCB,
63 LPFC_SOL_IOCB,
64 LPFC_ABORT_IOCB
65} lpfc_iocb_type;
66
James Smart4f774512009-05-22 14:52:35 -040067
68/* Provide function prototypes local to this module. */
69static int lpfc_sli_issue_mbox_s4(struct lpfc_hba *, LPFC_MBOXQ_t *,
70 uint32_t);
71static int lpfc_sli4_read_rev(struct lpfc_hba *, LPFC_MBOXQ_t *,
James Smart45ed1192009-10-02 15:17:02 -040072 uint8_t *, uint32_t *);
73static struct lpfc_iocbq *lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *,
74 struct lpfc_iocbq *);
James Smart6669f9b2009-10-02 15:16:45 -040075static void lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *,
76 struct hbq_dmabuf *);
James Smartae9e28f2017-05-15 15:20:51 -070077static void lpfc_sli4_handle_mds_loopback(struct lpfc_vport *vport,
78 struct hbq_dmabuf *dmabuf);
James Smart895427b2017-02-12 13:52:30 -080079static int lpfc_sli4_fp_handle_cqe(struct lpfc_hba *, struct lpfc_queue *,
James Smart05580562011-05-24 11:40:48 -040080 struct lpfc_cqe *);
James Smart895427b2017-02-12 13:52:30 -080081static int lpfc_sli4_post_sgl_list(struct lpfc_hba *, struct list_head *,
James Smart8a9d2e82012-05-09 21:16:12 -040082 int);
Dick Kennedye3e28632017-08-23 16:55:41 -070083static int lpfc_sli4_hba_handle_eqe(struct lpfc_hba *phba,
84 struct lpfc_eqe *eqe, uint32_t qidx);
James Smarte8d3c3b2013-10-10 12:21:30 -040085static bool lpfc_sli4_mbox_completions_pending(struct lpfc_hba *phba);
86static bool lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba *phba);
James Smart895427b2017-02-12 13:52:30 -080087static int lpfc_sli4_abort_nvme_io(struct lpfc_hba *phba,
88 struct lpfc_sli_ring *pring,
89 struct lpfc_iocbq *cmdiocb);
James Smart05580562011-05-24 11:40:48 -040090
James Smart4f774512009-05-22 14:52:35 -040091static IOCB_t *
92lpfc_get_iocb_from_iocbq(struct lpfc_iocbq *iocbq)
93{
94 return &iocbq->iocb;
95}
96
97/**
98 * lpfc_sli4_wq_put - Put a Work Queue Entry on an Work Queue
99 * @q: The Work Queue to operate on.
100 * @wqe: The work Queue Entry to put on the Work queue.
101 *
102 * This routine will copy the contents of @wqe to the next available entry on
103 * the @q. This function will then ring the Work Queue Doorbell to signal the
104 * HBA to start processing the Work Queue Entry. This function returns 0 if
105 * successful. If no entries are available on @q then this function will return
106 * -ENOMEM.
107 * The caller is expected to hold the hbalock when calling this routine.
108 **/
Dick Kennedycd22d602017-08-23 16:55:35 -0700109static int
James Smart4f774512009-05-22 14:52:35 -0400110lpfc_sli4_wq_put(struct lpfc_queue *q, union lpfc_wqe *wqe)
111{
James Smart2e90f4b2011-12-13 13:22:37 -0500112 union lpfc_wqe *temp_wqe;
James Smart4f774512009-05-22 14:52:35 -0400113 struct lpfc_register doorbell;
114 uint32_t host_index;
James Smart027140e2012-08-03 12:35:44 -0400115 uint32_t idx;
James Smart4f774512009-05-22 14:52:35 -0400116
James Smart2e90f4b2011-12-13 13:22:37 -0500117 /* sanity check on queue memory */
118 if (unlikely(!q))
119 return -ENOMEM;
120 temp_wqe = q->qe[q->host_index].wqe;
121
James Smart4f774512009-05-22 14:52:35 -0400122 /* If the host has not yet processed the next entry then we are done */
James Smart027140e2012-08-03 12:35:44 -0400123 idx = ((q->host_index + 1) % q->entry_count);
124 if (idx == q->hba_index) {
James Smartb84daac2012-08-03 12:35:13 -0400125 q->WQ_overflow++;
Dick Kennedycd22d602017-08-23 16:55:35 -0700126 return -EBUSY;
James Smartb84daac2012-08-03 12:35:13 -0400127 }
128 q->WQ_posted++;
James Smart4f774512009-05-22 14:52:35 -0400129 /* set consumption flag every once in a while */
James Smartff78d8f2011-12-13 13:21:35 -0500130 if (!((q->host_index + 1) % q->entry_repost))
James Smartf0d9bcc2010-10-22 11:07:09 -0400131 bf_set(wqe_wqec, &wqe->generic.wqe_com, 1);
James Smart48e835f2018-01-30 15:58:45 -0800132 else
133 bf_set(wqe_wqec, &wqe->generic.wqe_com, 0);
James Smartfedd3b72011-02-16 12:39:24 -0500134 if (q->phba->sli3_options & LPFC_SLI4_PHWQ_ENABLED)
135 bf_set(wqe_wqid, &wqe->generic.wqe_com, q->queue_id);
James Smart4f774512009-05-22 14:52:35 -0400136 lpfc_sli_pcimem_bcopy(wqe, temp_wqe, q->entry_size);
James Smart6b3b3bd2016-12-19 15:07:30 -0800137 /* ensure WQE bcopy flushed before doorbell write */
138 wmb();
James Smart4f774512009-05-22 14:52:35 -0400139
140 /* Update the host index before invoking device */
141 host_index = q->host_index;
James Smart027140e2012-08-03 12:35:44 -0400142
143 q->host_index = idx;
James Smart4f774512009-05-22 14:52:35 -0400144
145 /* Ring Doorbell */
146 doorbell.word0 = 0;
James Smart962bc512013-01-03 15:44:00 -0500147 if (q->db_format == LPFC_DB_LIST_FORMAT) {
148 bf_set(lpfc_wq_db_list_fm_num_posted, &doorbell, 1);
149 bf_set(lpfc_wq_db_list_fm_index, &doorbell, host_index);
150 bf_set(lpfc_wq_db_list_fm_id, &doorbell, q->queue_id);
151 } else if (q->db_format == LPFC_DB_RING_FORMAT) {
152 bf_set(lpfc_wq_db_ring_fm_num_posted, &doorbell, 1);
153 bf_set(lpfc_wq_db_ring_fm_id, &doorbell, q->queue_id);
154 } else {
155 return -EINVAL;
156 }
157 writel(doorbell.word0, q->db_regaddr);
James Smart4f774512009-05-22 14:52:35 -0400158
159 return 0;
160}
161
162/**
163 * lpfc_sli4_wq_release - Updates internal hba index for WQ
164 * @q: The Work Queue to operate on.
165 * @index: The index to advance the hba index to.
166 *
167 * This routine will update the HBA index of a queue to reflect consumption of
168 * Work Queue Entries by the HBA. When the HBA indicates that it has consumed
169 * an entry the host calls this function to update the queue's internal
170 * pointers. This routine returns the number of entries that were consumed by
171 * the HBA.
172 **/
173static uint32_t
174lpfc_sli4_wq_release(struct lpfc_queue *q, uint32_t index)
175{
176 uint32_t released = 0;
177
James Smart2e90f4b2011-12-13 13:22:37 -0500178 /* sanity check on queue memory */
179 if (unlikely(!q))
180 return 0;
181
James Smart4f774512009-05-22 14:52:35 -0400182 if (q->hba_index == index)
183 return 0;
184 do {
185 q->hba_index = ((q->hba_index + 1) % q->entry_count);
186 released++;
187 } while (q->hba_index != index);
188 return released;
189}
190
191/**
192 * lpfc_sli4_mq_put - Put a Mailbox Queue Entry on an Mailbox Queue
193 * @q: The Mailbox Queue to operate on.
194 * @wqe: The Mailbox Queue Entry to put on the Work queue.
195 *
196 * This routine will copy the contents of @mqe to the next available entry on
197 * the @q. This function will then ring the Work Queue Doorbell to signal the
198 * HBA to start processing the Work Queue Entry. This function returns 0 if
199 * successful. If no entries are available on @q then this function will return
200 * -ENOMEM.
201 * The caller is expected to hold the hbalock when calling this routine.
202 **/
203static uint32_t
204lpfc_sli4_mq_put(struct lpfc_queue *q, struct lpfc_mqe *mqe)
205{
James Smart2e90f4b2011-12-13 13:22:37 -0500206 struct lpfc_mqe *temp_mqe;
James Smart4f774512009-05-22 14:52:35 -0400207 struct lpfc_register doorbell;
James Smart4f774512009-05-22 14:52:35 -0400208
James Smart2e90f4b2011-12-13 13:22:37 -0500209 /* sanity check on queue memory */
210 if (unlikely(!q))
211 return -ENOMEM;
212 temp_mqe = q->qe[q->host_index].mqe;
213
James Smart4f774512009-05-22 14:52:35 -0400214 /* If the host has not yet processed the next entry then we are done */
215 if (((q->host_index + 1) % q->entry_count) == q->hba_index)
216 return -ENOMEM;
217 lpfc_sli_pcimem_bcopy(mqe, temp_mqe, q->entry_size);
218 /* Save off the mailbox pointer for completion */
219 q->phba->mbox = (MAILBOX_t *)temp_mqe;
220
221 /* Update the host index before invoking device */
James Smart4f774512009-05-22 14:52:35 -0400222 q->host_index = ((q->host_index + 1) % q->entry_count);
223
224 /* Ring Doorbell */
225 doorbell.word0 = 0;
226 bf_set(lpfc_mq_doorbell_num_posted, &doorbell, 1);
227 bf_set(lpfc_mq_doorbell_id, &doorbell, q->queue_id);
228 writel(doorbell.word0, q->phba->sli4_hba.MQDBregaddr);
James Smart4f774512009-05-22 14:52:35 -0400229 return 0;
230}
231
232/**
233 * lpfc_sli4_mq_release - Updates internal hba index for MQ
234 * @q: The Mailbox Queue to operate on.
235 *
236 * This routine will update the HBA index of a queue to reflect consumption of
237 * a Mailbox Queue Entry by the HBA. When the HBA indicates that it has consumed
238 * an entry the host calls this function to update the queue's internal
239 * pointers. This routine returns the number of entries that were consumed by
240 * the HBA.
241 **/
242static uint32_t
243lpfc_sli4_mq_release(struct lpfc_queue *q)
244{
James Smart2e90f4b2011-12-13 13:22:37 -0500245 /* sanity check on queue memory */
246 if (unlikely(!q))
247 return 0;
248
James Smart4f774512009-05-22 14:52:35 -0400249 /* Clear the mailbox pointer for completion */
250 q->phba->mbox = NULL;
251 q->hba_index = ((q->hba_index + 1) % q->entry_count);
252 return 1;
253}
254
255/**
256 * lpfc_sli4_eq_get - Gets the next valid EQE from a EQ
257 * @q: The Event Queue to get the first valid EQE from
258 *
259 * This routine will get the first valid Event Queue Entry from @q, update
260 * the queue's internal hba index, and return the EQE. If no valid EQEs are in
261 * the Queue (no more work to do), or the Queue is full of EQEs that have been
262 * processed, but not popped back to the HBA then this routine will return NULL.
263 **/
264static struct lpfc_eqe *
265lpfc_sli4_eq_get(struct lpfc_queue *q)
266{
James Smart2e90f4b2011-12-13 13:22:37 -0500267 struct lpfc_eqe *eqe;
James Smart027140e2012-08-03 12:35:44 -0400268 uint32_t idx;
James Smart2e90f4b2011-12-13 13:22:37 -0500269
270 /* sanity check on queue memory */
271 if (unlikely(!q))
272 return NULL;
273 eqe = q->qe[q->hba_index].eqe;
James Smart4f774512009-05-22 14:52:35 -0400274
275 /* If the next EQE is not valid then we are done */
James Smartcb5172e2010-03-15 11:25:07 -0400276 if (!bf_get_le32(lpfc_eqe_valid, eqe))
James Smart4f774512009-05-22 14:52:35 -0400277 return NULL;
278 /* If the host has not yet processed the next entry then we are done */
James Smart027140e2012-08-03 12:35:44 -0400279 idx = ((q->hba_index + 1) % q->entry_count);
280 if (idx == q->host_index)
James Smart4f774512009-05-22 14:52:35 -0400281 return NULL;
282
James Smart027140e2012-08-03 12:35:44 -0400283 q->hba_index = idx;
James Smart27f344e2014-05-07 17:16:46 -0400284
285 /*
286 * insert barrier for instruction interlock : data from the hardware
287 * must have the valid bit checked before it can be copied and acted
James Smart2ea259e2017-02-12 13:52:27 -0800288 * upon. Speculative instructions were allowing a bcopy at the start
289 * of lpfc_sli4_fp_handle_wcqe(), which is called immediately
290 * after our return, to copy data before the valid bit check above
291 * was done. As such, some of the copied data was stale. The barrier
292 * ensures the check is before any data is copied.
James Smart27f344e2014-05-07 17:16:46 -0400293 */
294 mb();
James Smart4f774512009-05-22 14:52:35 -0400295 return eqe;
296}
297
298/**
James Smartba20c852012-08-03 12:36:52 -0400299 * lpfc_sli4_eq_clr_intr - Turn off interrupts from this EQ
300 * @q: The Event Queue to disable interrupts
301 *
302 **/
303static inline void
304lpfc_sli4_eq_clr_intr(struct lpfc_queue *q)
305{
306 struct lpfc_register doorbell;
307
308 doorbell.word0 = 0;
309 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
310 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
311 bf_set(lpfc_eqcq_doorbell_eqid_hi, &doorbell,
312 (q->queue_id >> LPFC_EQID_HI_FIELD_SHIFT));
313 bf_set(lpfc_eqcq_doorbell_eqid_lo, &doorbell, q->queue_id);
314 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
315}
316
317/**
James Smart4f774512009-05-22 14:52:35 -0400318 * lpfc_sli4_eq_release - Indicates the host has finished processing an EQ
319 * @q: The Event Queue that the host has completed processing for.
320 * @arm: Indicates whether the host wants to arms this CQ.
321 *
322 * This routine will mark all Event Queue Entries on @q, from the last
323 * known completed entry to the last entry that was processed, as completed
324 * by clearing the valid bit for each completion queue entry. Then it will
325 * notify the HBA, by ringing the doorbell, that the EQEs have been processed.
326 * The internal host index in the @q will be updated by this routine to indicate
327 * that the host has finished processing the entries. The @arm parameter
328 * indicates that the queue should be rearmed when ringing the doorbell.
329 *
330 * This function will return the number of EQEs that were popped.
331 **/
332uint32_t
333lpfc_sli4_eq_release(struct lpfc_queue *q, bool arm)
334{
335 uint32_t released = 0;
336 struct lpfc_eqe *temp_eqe;
337 struct lpfc_register doorbell;
338
James Smart2e90f4b2011-12-13 13:22:37 -0500339 /* sanity check on queue memory */
340 if (unlikely(!q))
341 return 0;
342
James Smart4f774512009-05-22 14:52:35 -0400343 /* while there are valid entries */
344 while (q->hba_index != q->host_index) {
345 temp_eqe = q->qe[q->host_index].eqe;
James Smartcb5172e2010-03-15 11:25:07 -0400346 bf_set_le32(lpfc_eqe_valid, temp_eqe, 0);
James Smart4f774512009-05-22 14:52:35 -0400347 released++;
348 q->host_index = ((q->host_index + 1) % q->entry_count);
349 }
350 if (unlikely(released == 0 && !arm))
351 return 0;
352
353 /* ring doorbell for number popped */
354 doorbell.word0 = 0;
355 if (arm) {
356 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
357 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
358 }
359 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
360 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
James Smart6b5151f2012-01-18 16:24:06 -0500361 bf_set(lpfc_eqcq_doorbell_eqid_hi, &doorbell,
362 (q->queue_id >> LPFC_EQID_HI_FIELD_SHIFT));
363 bf_set(lpfc_eqcq_doorbell_eqid_lo, &doorbell, q->queue_id);
James Smart4f774512009-05-22 14:52:35 -0400364 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
James Smarta747c9c2009-11-18 15:41:10 -0500365 /* PCI read to flush PCI pipeline on re-arming for INTx mode */
366 if ((q->phba->intr_type == INTx) && (arm == LPFC_QUEUE_REARM))
367 readl(q->phba->sli4_hba.EQCQDBregaddr);
James Smart4f774512009-05-22 14:52:35 -0400368 return released;
369}
370
371/**
372 * lpfc_sli4_cq_get - Gets the next valid CQE from a CQ
373 * @q: The Completion Queue to get the first valid CQE from
374 *
375 * This routine will get the first valid Completion Queue Entry from @q, update
376 * the queue's internal hba index, and return the CQE. If no valid CQEs are in
377 * the Queue (no more work to do), or the Queue is full of CQEs that have been
378 * processed, but not popped back to the HBA then this routine will return NULL.
379 **/
380static struct lpfc_cqe *
381lpfc_sli4_cq_get(struct lpfc_queue *q)
382{
383 struct lpfc_cqe *cqe;
James Smart027140e2012-08-03 12:35:44 -0400384 uint32_t idx;
James Smart4f774512009-05-22 14:52:35 -0400385
James Smart2e90f4b2011-12-13 13:22:37 -0500386 /* sanity check on queue memory */
387 if (unlikely(!q))
388 return NULL;
389
James Smart4f774512009-05-22 14:52:35 -0400390 /* If the next CQE is not valid then we are done */
James Smartcb5172e2010-03-15 11:25:07 -0400391 if (!bf_get_le32(lpfc_cqe_valid, q->qe[q->hba_index].cqe))
James Smart4f774512009-05-22 14:52:35 -0400392 return NULL;
393 /* If the host has not yet processed the next entry then we are done */
James Smart027140e2012-08-03 12:35:44 -0400394 idx = ((q->hba_index + 1) % q->entry_count);
395 if (idx == q->host_index)
James Smart4f774512009-05-22 14:52:35 -0400396 return NULL;
397
398 cqe = q->qe[q->hba_index].cqe;
James Smart027140e2012-08-03 12:35:44 -0400399 q->hba_index = idx;
James Smart27f344e2014-05-07 17:16:46 -0400400
401 /*
402 * insert barrier for instruction interlock : data from the hardware
403 * must have the valid bit checked before it can be copied and acted
James Smart2ea259e2017-02-12 13:52:27 -0800404 * upon. Given what was seen in lpfc_sli4_cq_get() of speculative
405 * instructions allowing action on content before valid bit checked,
406 * add barrier here as well. May not be needed as "content" is a
407 * single 32-bit entity here (vs multi word structure for cq's).
James Smart27f344e2014-05-07 17:16:46 -0400408 */
409 mb();
James Smart4f774512009-05-22 14:52:35 -0400410 return cqe;
411}
412
413/**
414 * lpfc_sli4_cq_release - Indicates the host has finished processing a CQ
415 * @q: The Completion Queue that the host has completed processing for.
416 * @arm: Indicates whether the host wants to arms this CQ.
417 *
418 * This routine will mark all Completion queue entries on @q, from the last
419 * known completed entry to the last entry that was processed, as completed
420 * by clearing the valid bit for each completion queue entry. Then it will
421 * notify the HBA, by ringing the doorbell, that the CQEs have been processed.
422 * The internal host index in the @q will be updated by this routine to indicate
423 * that the host has finished processing the entries. The @arm parameter
424 * indicates that the queue should be rearmed when ringing the doorbell.
425 *
426 * This function will return the number of CQEs that were released.
427 **/
428uint32_t
429lpfc_sli4_cq_release(struct lpfc_queue *q, bool arm)
430{
431 uint32_t released = 0;
432 struct lpfc_cqe *temp_qe;
433 struct lpfc_register doorbell;
434
James Smart2e90f4b2011-12-13 13:22:37 -0500435 /* sanity check on queue memory */
436 if (unlikely(!q))
437 return 0;
James Smart4f774512009-05-22 14:52:35 -0400438 /* while there are valid entries */
439 while (q->hba_index != q->host_index) {
440 temp_qe = q->qe[q->host_index].cqe;
James Smartcb5172e2010-03-15 11:25:07 -0400441 bf_set_le32(lpfc_cqe_valid, temp_qe, 0);
James Smart4f774512009-05-22 14:52:35 -0400442 released++;
443 q->host_index = ((q->host_index + 1) % q->entry_count);
444 }
445 if (unlikely(released == 0 && !arm))
446 return 0;
447
448 /* ring doorbell for number popped */
449 doorbell.word0 = 0;
450 if (arm)
451 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
452 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
453 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_COMPLETION);
James Smart6b5151f2012-01-18 16:24:06 -0500454 bf_set(lpfc_eqcq_doorbell_cqid_hi, &doorbell,
455 (q->queue_id >> LPFC_CQID_HI_FIELD_SHIFT));
456 bf_set(lpfc_eqcq_doorbell_cqid_lo, &doorbell, q->queue_id);
James Smart4f774512009-05-22 14:52:35 -0400457 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
458 return released;
459}
460
461/**
462 * lpfc_sli4_rq_put - Put a Receive Buffer Queue Entry on a Receive Queue
463 * @q: The Header Receive Queue to operate on.
464 * @wqe: The Receive Queue Entry to put on the Receive queue.
465 *
466 * This routine will copy the contents of @wqe to the next available entry on
467 * the @q. This function will then ring the Receive Queue Doorbell to signal the
468 * HBA to start processing the Receive Queue Entry. This function returns the
469 * index that the rqe was copied to if successful. If no entries are available
470 * on @q then this function will return -ENOMEM.
471 * The caller is expected to hold the hbalock when calling this routine.
472 **/
James Smart895427b2017-02-12 13:52:30 -0800473int
James Smart4f774512009-05-22 14:52:35 -0400474lpfc_sli4_rq_put(struct lpfc_queue *hq, struct lpfc_queue *dq,
475 struct lpfc_rqe *hrqe, struct lpfc_rqe *drqe)
476{
James Smart2e90f4b2011-12-13 13:22:37 -0500477 struct lpfc_rqe *temp_hrqe;
478 struct lpfc_rqe *temp_drqe;
James Smart4f774512009-05-22 14:52:35 -0400479 struct lpfc_register doorbell;
Wei Yongjun5a25bf32012-12-02 08:33:24 -0500480 int put_index;
James Smart4f774512009-05-22 14:52:35 -0400481
James Smart2e90f4b2011-12-13 13:22:37 -0500482 /* sanity check on queue memory */
483 if (unlikely(!hq) || unlikely(!dq))
484 return -ENOMEM;
Wei Yongjun5a25bf32012-12-02 08:33:24 -0500485 put_index = hq->host_index;
James Smart61f3d4b2017-05-15 15:20:41 -0700486 temp_hrqe = hq->qe[put_index].rqe;
James Smart2e90f4b2011-12-13 13:22:37 -0500487 temp_drqe = dq->qe[dq->host_index].rqe;
488
James Smart4f774512009-05-22 14:52:35 -0400489 if (hq->type != LPFC_HRQ || dq->type != LPFC_DRQ)
490 return -EINVAL;
James Smart61f3d4b2017-05-15 15:20:41 -0700491 if (put_index != dq->host_index)
James Smart4f774512009-05-22 14:52:35 -0400492 return -EINVAL;
493 /* If the host has not yet processed the next entry then we are done */
James Smart61f3d4b2017-05-15 15:20:41 -0700494 if (((put_index + 1) % hq->entry_count) == hq->hba_index)
James Smart4f774512009-05-22 14:52:35 -0400495 return -EBUSY;
496 lpfc_sli_pcimem_bcopy(hrqe, temp_hrqe, hq->entry_size);
497 lpfc_sli_pcimem_bcopy(drqe, temp_drqe, dq->entry_size);
498
499 /* Update the host index to point to the next slot */
James Smart61f3d4b2017-05-15 15:20:41 -0700500 hq->host_index = ((put_index + 1) % hq->entry_count);
James Smart4f774512009-05-22 14:52:35 -0400501 dq->host_index = ((dq->host_index + 1) % dq->entry_count);
James Smart61f3d4b2017-05-15 15:20:41 -0700502 hq->RQ_buf_posted++;
James Smart4f774512009-05-22 14:52:35 -0400503
504 /* Ring The Header Receive Queue Doorbell */
James Smart73d91e52011-10-10 21:32:10 -0400505 if (!(hq->host_index % hq->entry_repost)) {
James Smart4f774512009-05-22 14:52:35 -0400506 doorbell.word0 = 0;
James Smart962bc512013-01-03 15:44:00 -0500507 if (hq->db_format == LPFC_DB_RING_FORMAT) {
508 bf_set(lpfc_rq_db_ring_fm_num_posted, &doorbell,
509 hq->entry_repost);
510 bf_set(lpfc_rq_db_ring_fm_id, &doorbell, hq->queue_id);
511 } else if (hq->db_format == LPFC_DB_LIST_FORMAT) {
512 bf_set(lpfc_rq_db_list_fm_num_posted, &doorbell,
513 hq->entry_repost);
514 bf_set(lpfc_rq_db_list_fm_index, &doorbell,
515 hq->host_index);
516 bf_set(lpfc_rq_db_list_fm_id, &doorbell, hq->queue_id);
517 } else {
518 return -EINVAL;
519 }
520 writel(doorbell.word0, hq->db_regaddr);
James Smart4f774512009-05-22 14:52:35 -0400521 }
522 return put_index;
523}
524
525/**
526 * lpfc_sli4_rq_release - Updates internal hba index for RQ
527 * @q: The Header Receive Queue to operate on.
528 *
529 * This routine will update the HBA index of a queue to reflect consumption of
530 * one Receive Queue Entry by the HBA. When the HBA indicates that it has
531 * consumed an entry the host calls this function to update the queue's
532 * internal pointers. This routine returns the number of entries that were
533 * consumed by the HBA.
534 **/
535static uint32_t
536lpfc_sli4_rq_release(struct lpfc_queue *hq, struct lpfc_queue *dq)
537{
James Smart2e90f4b2011-12-13 13:22:37 -0500538 /* sanity check on queue memory */
539 if (unlikely(!hq) || unlikely(!dq))
540 return 0;
541
James Smart4f774512009-05-22 14:52:35 -0400542 if ((hq->type != LPFC_HRQ) || (dq->type != LPFC_DRQ))
543 return 0;
544 hq->hba_index = ((hq->hba_index + 1) % hq->entry_count);
545 dq->hba_index = ((dq->hba_index + 1) % dq->entry_count);
546 return 1;
547}
548
James Smarte59058c2008-08-24 21:49:00 -0400549/**
James Smart3621a712009-04-06 18:47:14 -0400550 * lpfc_cmd_iocb - Get next command iocb entry in the ring
James Smarte59058c2008-08-24 21:49:00 -0400551 * @phba: Pointer to HBA context object.
552 * @pring: Pointer to driver SLI ring object.
553 *
554 * This function returns pointer to next command iocb entry
555 * in the command ring. The caller must hold hbalock to prevent
556 * other threads consume the next command iocb.
557 * SLI-2/SLI-3 provide different sized iocbs.
558 **/
James Smarted957682007-06-17 19:56:37 -0500559static inline IOCB_t *
560lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
561{
James Smart7e56aa22012-08-03 12:35:34 -0400562 return (IOCB_t *) (((char *) pring->sli.sli3.cmdringaddr) +
563 pring->sli.sli3.cmdidx * phba->iocb_cmd_size);
James Smarted957682007-06-17 19:56:37 -0500564}
565
James Smarte59058c2008-08-24 21:49:00 -0400566/**
James Smart3621a712009-04-06 18:47:14 -0400567 * lpfc_resp_iocb - Get next response iocb entry in the ring
James Smarte59058c2008-08-24 21:49:00 -0400568 * @phba: Pointer to HBA context object.
569 * @pring: Pointer to driver SLI ring object.
570 *
571 * This function returns pointer to next response iocb entry
572 * in the response ring. The caller must hold hbalock to make sure
573 * that no other thread consume the next response iocb.
574 * SLI-2/SLI-3 provide different sized iocbs.
575 **/
James Smarted957682007-06-17 19:56:37 -0500576static inline IOCB_t *
577lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
578{
James Smart7e56aa22012-08-03 12:35:34 -0400579 return (IOCB_t *) (((char *) pring->sli.sli3.rspringaddr) +
580 pring->sli.sli3.rspidx * phba->iocb_rsp_size);
James Smarted957682007-06-17 19:56:37 -0500581}
582
James Smarte59058c2008-08-24 21:49:00 -0400583/**
James Smart3621a712009-04-06 18:47:14 -0400584 * __lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
James Smarte59058c2008-08-24 21:49:00 -0400585 * @phba: Pointer to HBA context object.
586 *
587 * This function is called with hbalock held. This function
588 * allocates a new driver iocb object from the iocb pool. If the
589 * allocation is successful, it returns pointer to the newly
590 * allocated iocb object else it returns NULL.
591 **/
James Smart4f2e66c2012-05-09 21:17:07 -0400592struct lpfc_iocbq *
James Smart2e0fef82007-06-17 19:56:36 -0500593__lpfc_sli_get_iocbq(struct lpfc_hba *phba)
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -0400594{
595 struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
596 struct lpfc_iocbq * iocbq = NULL;
597
Johannes Thumshirn1c2ba472016-01-20 16:22:22 +0100598 lockdep_assert_held(&phba->hbalock);
599
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -0400600 list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list);
James Smart2a9bf3d2010-06-07 15:24:45 -0400601 if (iocbq)
602 phba->iocb_cnt++;
603 if (phba->iocb_cnt > phba->iocb_max)
604 phba->iocb_max = phba->iocb_cnt;
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -0400605 return iocbq;
606}
607
James Smarte59058c2008-08-24 21:49:00 -0400608/**
James Smartda0436e2009-05-22 14:51:39 -0400609 * __lpfc_clear_active_sglq - Remove the active sglq for this XRI.
610 * @phba: Pointer to HBA context object.
611 * @xritag: XRI value.
612 *
613 * This function clears the sglq pointer from the array of acive
614 * sglq's. The xritag that is passed in is used to index into the
615 * array. Before the xritag can be used it needs to be adjusted
616 * by subtracting the xribase.
617 *
618 * Returns sglq ponter = success, NULL = Failure.
619 **/
James Smart895427b2017-02-12 13:52:30 -0800620struct lpfc_sglq *
James Smartda0436e2009-05-22 14:51:39 -0400621__lpfc_clear_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
622{
James Smartda0436e2009-05-22 14:51:39 -0400623 struct lpfc_sglq *sglq;
James Smart6d368e52011-05-24 11:44:12 -0400624
625 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
626 phba->sli4_hba.lpfc_sglq_active_list[xritag] = NULL;
James Smartda0436e2009-05-22 14:51:39 -0400627 return sglq;
628}
629
630/**
631 * __lpfc_get_active_sglq - Get the active sglq for this XRI.
632 * @phba: Pointer to HBA context object.
633 * @xritag: XRI value.
634 *
635 * This function returns the sglq pointer from the array of acive
636 * sglq's. The xritag that is passed in is used to index into the
637 * array. Before the xritag can be used it needs to be adjusted
638 * by subtracting the xribase.
639 *
640 * Returns sglq ponter = success, NULL = Failure.
641 **/
James Smart0f65ff62010-02-26 14:14:23 -0500642struct lpfc_sglq *
James Smartda0436e2009-05-22 14:51:39 -0400643__lpfc_get_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
644{
James Smartda0436e2009-05-22 14:51:39 -0400645 struct lpfc_sglq *sglq;
James Smart6d368e52011-05-24 11:44:12 -0400646
647 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
James Smartda0436e2009-05-22 14:51:39 -0400648 return sglq;
649}
650
651/**
James Smart1151e3e2011-02-16 12:39:35 -0500652 * lpfc_clr_rrq_active - Clears RRQ active bit in xri_bitmap.
James Smart19ca7602010-11-20 23:11:55 -0500653 * @phba: Pointer to HBA context object.
654 * @xritag: xri used in this exchange.
655 * @rrq: The RRQ to be cleared.
656 *
James Smart19ca7602010-11-20 23:11:55 -0500657 **/
James Smart1151e3e2011-02-16 12:39:35 -0500658void
659lpfc_clr_rrq_active(struct lpfc_hba *phba,
660 uint16_t xritag,
661 struct lpfc_node_rrq *rrq)
James Smart19ca7602010-11-20 23:11:55 -0500662{
James Smart1151e3e2011-02-16 12:39:35 -0500663 struct lpfc_nodelist *ndlp = NULL;
James Smart19ca7602010-11-20 23:11:55 -0500664
James Smart1151e3e2011-02-16 12:39:35 -0500665 if ((rrq->vport) && NLP_CHK_NODE_ACT(rrq->ndlp))
666 ndlp = lpfc_findnode_did(rrq->vport, rrq->nlp_DID);
James Smart19ca7602010-11-20 23:11:55 -0500667
668 /* The target DID could have been swapped (cable swap)
669 * we should use the ndlp from the findnode if it is
670 * available.
671 */
James Smart1151e3e2011-02-16 12:39:35 -0500672 if ((!ndlp) && rrq->ndlp)
James Smart19ca7602010-11-20 23:11:55 -0500673 ndlp = rrq->ndlp;
674
James Smart1151e3e2011-02-16 12:39:35 -0500675 if (!ndlp)
676 goto out;
677
James Smartcff261f2013-12-17 20:29:47 -0500678 if (test_and_clear_bit(xritag, ndlp->active_rrqs_xri_bitmap)) {
James Smart19ca7602010-11-20 23:11:55 -0500679 rrq->send_rrq = 0;
680 rrq->xritag = 0;
681 rrq->rrq_stop_time = 0;
682 }
James Smart1151e3e2011-02-16 12:39:35 -0500683out:
James Smart19ca7602010-11-20 23:11:55 -0500684 mempool_free(rrq, phba->rrq_pool);
685}
686
687/**
688 * lpfc_handle_rrq_active - Checks if RRQ has waithed RATOV.
689 * @phba: Pointer to HBA context object.
690 *
691 * This function is called with hbalock held. This function
692 * Checks if stop_time (ratov from setting rrq active) has
693 * been reached, if it has and the send_rrq flag is set then
694 * it will call lpfc_send_rrq. If the send_rrq flag is not set
695 * then it will just call the routine to clear the rrq and
696 * free the rrq resource.
697 * The timer is set to the next rrq that is going to expire before
698 * leaving the routine.
699 *
700 **/
701void
702lpfc_handle_rrq_active(struct lpfc_hba *phba)
703{
704 struct lpfc_node_rrq *rrq;
705 struct lpfc_node_rrq *nextrrq;
706 unsigned long next_time;
707 unsigned long iflags;
James Smart1151e3e2011-02-16 12:39:35 -0500708 LIST_HEAD(send_rrq);
James Smart19ca7602010-11-20 23:11:55 -0500709
710 spin_lock_irqsave(&phba->hbalock, iflags);
711 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
James Smart256ec0d2013-04-17 20:14:58 -0400712 next_time = jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov + 1));
James Smart19ca7602010-11-20 23:11:55 -0500713 list_for_each_entry_safe(rrq, nextrrq,
James Smart1151e3e2011-02-16 12:39:35 -0500714 &phba->active_rrq_list, list) {
715 if (time_after(jiffies, rrq->rrq_stop_time))
716 list_move(&rrq->list, &send_rrq);
717 else if (time_before(rrq->rrq_stop_time, next_time))
James Smart19ca7602010-11-20 23:11:55 -0500718 next_time = rrq->rrq_stop_time;
719 }
720 spin_unlock_irqrestore(&phba->hbalock, iflags);
James Smart06918ac2014-02-20 09:57:57 -0500721 if ((!list_empty(&phba->active_rrq_list)) &&
722 (!(phba->pport->load_flag & FC_UNLOADING)))
James Smart19ca7602010-11-20 23:11:55 -0500723 mod_timer(&phba->rrq_tmr, next_time);
James Smart1151e3e2011-02-16 12:39:35 -0500724 list_for_each_entry_safe(rrq, nextrrq, &send_rrq, list) {
725 list_del(&rrq->list);
726 if (!rrq->send_rrq)
727 /* this call will free the rrq */
728 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
729 else if (lpfc_send_rrq(phba, rrq)) {
730 /* if we send the rrq then the completion handler
731 * will clear the bit in the xribitmap.
732 */
733 lpfc_clr_rrq_active(phba, rrq->xritag,
734 rrq);
735 }
736 }
James Smart19ca7602010-11-20 23:11:55 -0500737}
738
739/**
740 * lpfc_get_active_rrq - Get the active RRQ for this exchange.
741 * @vport: Pointer to vport context object.
742 * @xri: The xri used in the exchange.
743 * @did: The targets DID for this exchange.
744 *
745 * returns NULL = rrq not found in the phba->active_rrq_list.
746 * rrq = rrq for this xri and target.
747 **/
748struct lpfc_node_rrq *
749lpfc_get_active_rrq(struct lpfc_vport *vport, uint16_t xri, uint32_t did)
750{
751 struct lpfc_hba *phba = vport->phba;
752 struct lpfc_node_rrq *rrq;
753 struct lpfc_node_rrq *nextrrq;
754 unsigned long iflags;
755
756 if (phba->sli_rev != LPFC_SLI_REV4)
757 return NULL;
758 spin_lock_irqsave(&phba->hbalock, iflags);
759 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list) {
760 if (rrq->vport == vport && rrq->xritag == xri &&
761 rrq->nlp_DID == did){
762 list_del(&rrq->list);
763 spin_unlock_irqrestore(&phba->hbalock, iflags);
764 return rrq;
765 }
766 }
767 spin_unlock_irqrestore(&phba->hbalock, iflags);
768 return NULL;
769}
770
771/**
772 * lpfc_cleanup_vports_rrqs - Remove and clear the active RRQ for this vport.
773 * @vport: Pointer to vport context object.
James Smart1151e3e2011-02-16 12:39:35 -0500774 * @ndlp: Pointer to the lpfc_node_list structure.
775 * If ndlp is NULL Remove all active RRQs for this vport from the
776 * phba->active_rrq_list and clear the rrq.
777 * If ndlp is not NULL then only remove rrqs for this vport & this ndlp.
James Smart19ca7602010-11-20 23:11:55 -0500778 **/
779void
James Smart1151e3e2011-02-16 12:39:35 -0500780lpfc_cleanup_vports_rrqs(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
James Smart19ca7602010-11-20 23:11:55 -0500781
782{
783 struct lpfc_hba *phba = vport->phba;
784 struct lpfc_node_rrq *rrq;
785 struct lpfc_node_rrq *nextrrq;
786 unsigned long iflags;
James Smart1151e3e2011-02-16 12:39:35 -0500787 LIST_HEAD(rrq_list);
James Smart19ca7602010-11-20 23:11:55 -0500788
789 if (phba->sli_rev != LPFC_SLI_REV4)
790 return;
James Smart1151e3e2011-02-16 12:39:35 -0500791 if (!ndlp) {
792 lpfc_sli4_vport_delete_els_xri_aborted(vport);
793 lpfc_sli4_vport_delete_fcp_xri_aborted(vport);
James Smart19ca7602010-11-20 23:11:55 -0500794 }
James Smart1151e3e2011-02-16 12:39:35 -0500795 spin_lock_irqsave(&phba->hbalock, iflags);
796 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list)
797 if ((rrq->vport == vport) && (!ndlp || rrq->ndlp == ndlp))
798 list_move(&rrq->list, &rrq_list);
James Smart19ca7602010-11-20 23:11:55 -0500799 spin_unlock_irqrestore(&phba->hbalock, iflags);
James Smart1151e3e2011-02-16 12:39:35 -0500800
801 list_for_each_entry_safe(rrq, nextrrq, &rrq_list, list) {
802 list_del(&rrq->list);
803 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
804 }
James Smart19ca7602010-11-20 23:11:55 -0500805}
806
807/**
James Smart1151e3e2011-02-16 12:39:35 -0500808 * lpfc_test_rrq_active - Test RRQ bit in xri_bitmap.
James Smart19ca7602010-11-20 23:11:55 -0500809 * @phba: Pointer to HBA context object.
810 * @ndlp: Targets nodelist pointer for this exchange.
811 * @xritag the xri in the bitmap to test.
812 *
813 * This function is called with hbalock held. This function
814 * returns 0 = rrq not active for this xri
815 * 1 = rrq is valid for this xri.
816 **/
James Smart1151e3e2011-02-16 12:39:35 -0500817int
818lpfc_test_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
James Smart19ca7602010-11-20 23:11:55 -0500819 uint16_t xritag)
820{
Johannes Thumshirn1c2ba472016-01-20 16:22:22 +0100821 lockdep_assert_held(&phba->hbalock);
James Smart19ca7602010-11-20 23:11:55 -0500822 if (!ndlp)
823 return 0;
James Smartcff261f2013-12-17 20:29:47 -0500824 if (!ndlp->active_rrqs_xri_bitmap)
825 return 0;
826 if (test_bit(xritag, ndlp->active_rrqs_xri_bitmap))
James Smart19ca7602010-11-20 23:11:55 -0500827 return 1;
828 else
829 return 0;
830}
831
832/**
833 * lpfc_set_rrq_active - set RRQ active bit in xri_bitmap.
834 * @phba: Pointer to HBA context object.
835 * @ndlp: nodelist pointer for this target.
836 * @xritag: xri used in this exchange.
837 * @rxid: Remote Exchange ID.
838 * @send_rrq: Flag used to determine if we should send rrq els cmd.
839 *
840 * This function takes the hbalock.
841 * The active bit is always set in the active rrq xri_bitmap even
842 * if there is no slot avaiable for the other rrq information.
843 *
844 * returns 0 rrq actived for this xri
845 * < 0 No memory or invalid ndlp.
846 **/
847int
848lpfc_set_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
James Smartb42c07c2012-01-18 16:25:55 -0500849 uint16_t xritag, uint16_t rxid, uint16_t send_rrq)
James Smart19ca7602010-11-20 23:11:55 -0500850{
James Smart19ca7602010-11-20 23:11:55 -0500851 unsigned long iflags;
James Smartb42c07c2012-01-18 16:25:55 -0500852 struct lpfc_node_rrq *rrq;
853 int empty;
854
855 if (!ndlp)
856 return -EINVAL;
857
858 if (!phba->cfg_enable_rrq)
859 return -EINVAL;
James Smart19ca7602010-11-20 23:11:55 -0500860
861 spin_lock_irqsave(&phba->hbalock, iflags);
James Smartb42c07c2012-01-18 16:25:55 -0500862 if (phba->pport->load_flag & FC_UNLOADING) {
863 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
864 goto out;
865 }
866
867 /*
868 * set the active bit even if there is no mem available.
869 */
870 if (NLP_CHK_FREE_REQ(ndlp))
871 goto out;
872
873 if (ndlp->vport && (ndlp->vport->load_flag & FC_UNLOADING))
874 goto out;
875
James Smartcff261f2013-12-17 20:29:47 -0500876 if (!ndlp->active_rrqs_xri_bitmap)
877 goto out;
878
879 if (test_and_set_bit(xritag, ndlp->active_rrqs_xri_bitmap))
James Smartb42c07c2012-01-18 16:25:55 -0500880 goto out;
881
James Smart19ca7602010-11-20 23:11:55 -0500882 spin_unlock_irqrestore(&phba->hbalock, iflags);
James Smartb42c07c2012-01-18 16:25:55 -0500883 rrq = mempool_alloc(phba->rrq_pool, GFP_KERNEL);
884 if (!rrq) {
885 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
886 "3155 Unable to allocate RRQ xri:0x%x rxid:0x%x"
887 " DID:0x%x Send:%d\n",
888 xritag, rxid, ndlp->nlp_DID, send_rrq);
889 return -EINVAL;
890 }
James Smarte5771b42013-03-01 16:37:14 -0500891 if (phba->cfg_enable_rrq == 1)
892 rrq->send_rrq = send_rrq;
893 else
894 rrq->send_rrq = 0;
James Smartb42c07c2012-01-18 16:25:55 -0500895 rrq->xritag = xritag;
James Smart256ec0d2013-04-17 20:14:58 -0400896 rrq->rrq_stop_time = jiffies +
897 msecs_to_jiffies(1000 * (phba->fc_ratov + 1));
James Smartb42c07c2012-01-18 16:25:55 -0500898 rrq->ndlp = ndlp;
899 rrq->nlp_DID = ndlp->nlp_DID;
900 rrq->vport = ndlp->vport;
901 rrq->rxid = rxid;
James Smartb42c07c2012-01-18 16:25:55 -0500902 spin_lock_irqsave(&phba->hbalock, iflags);
903 empty = list_empty(&phba->active_rrq_list);
904 list_add_tail(&rrq->list, &phba->active_rrq_list);
905 phba->hba_flag |= HBA_RRQ_ACTIVE;
906 if (empty)
907 lpfc_worker_wake_up(phba);
908 spin_unlock_irqrestore(&phba->hbalock, iflags);
909 return 0;
910out:
911 spin_unlock_irqrestore(&phba->hbalock, iflags);
912 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
913 "2921 Can't set rrq active xri:0x%x rxid:0x%x"
914 " DID:0x%x Send:%d\n",
915 xritag, rxid, ndlp->nlp_DID, send_rrq);
916 return -EINVAL;
James Smart19ca7602010-11-20 23:11:55 -0500917}
918
919/**
James Smart895427b2017-02-12 13:52:30 -0800920 * __lpfc_sli_get_els_sglq - Allocates an iocb object from sgl pool
James Smartda0436e2009-05-22 14:51:39 -0400921 * @phba: Pointer to HBA context object.
James Smart19ca7602010-11-20 23:11:55 -0500922 * @piocb: Pointer to the iocbq.
James Smartda0436e2009-05-22 14:51:39 -0400923 *
James Smartdafe8ce2014-09-03 12:56:40 -0400924 * This function is called with the ring lock held. This function
James Smart6d368e52011-05-24 11:44:12 -0400925 * gets a new driver sglq object from the sglq list. If the
James Smartda0436e2009-05-22 14:51:39 -0400926 * list is not empty then it is successful, it returns pointer to the newly
927 * allocated sglq object else it returns NULL.
928 **/
929static struct lpfc_sglq *
James Smart895427b2017-02-12 13:52:30 -0800930__lpfc_sli_get_els_sglq(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq)
James Smartda0436e2009-05-22 14:51:39 -0400931{
James Smart895427b2017-02-12 13:52:30 -0800932 struct list_head *lpfc_els_sgl_list = &phba->sli4_hba.lpfc_els_sgl_list;
James Smartda0436e2009-05-22 14:51:39 -0400933 struct lpfc_sglq *sglq = NULL;
James Smart19ca7602010-11-20 23:11:55 -0500934 struct lpfc_sglq *start_sglq = NULL;
James Smart19ca7602010-11-20 23:11:55 -0500935 struct lpfc_scsi_buf *lpfc_cmd;
936 struct lpfc_nodelist *ndlp;
937 int found = 0;
938
Johannes Thumshirn1c2ba472016-01-20 16:22:22 +0100939 lockdep_assert_held(&phba->hbalock);
940
James Smart19ca7602010-11-20 23:11:55 -0500941 if (piocbq->iocb_flag & LPFC_IO_FCP) {
942 lpfc_cmd = (struct lpfc_scsi_buf *) piocbq->context1;
943 ndlp = lpfc_cmd->rdata->pnode;
James Smartbe858b62010-12-15 17:57:20 -0500944 } else if ((piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) &&
James Smart6c7cf482015-04-07 15:07:25 -0400945 !(piocbq->iocb_flag & LPFC_IO_LIBDFC)) {
James Smart19ca7602010-11-20 23:11:55 -0500946 ndlp = piocbq->context_un.ndlp;
James Smart6c7cf482015-04-07 15:07:25 -0400947 } else if (piocbq->iocb_flag & LPFC_IO_LIBDFC) {
948 if (piocbq->iocb_flag & LPFC_IO_LOOPBACK)
949 ndlp = NULL;
950 else
951 ndlp = piocbq->context_un.ndlp;
952 } else {
James Smart19ca7602010-11-20 23:11:55 -0500953 ndlp = piocbq->context1;
James Smart6c7cf482015-04-07 15:07:25 -0400954 }
James Smart19ca7602010-11-20 23:11:55 -0500955
James Smart895427b2017-02-12 13:52:30 -0800956 spin_lock(&phba->sli4_hba.sgl_list_lock);
957 list_remove_head(lpfc_els_sgl_list, sglq, struct lpfc_sglq, list);
James Smart19ca7602010-11-20 23:11:55 -0500958 start_sglq = sglq;
959 while (!found) {
960 if (!sglq)
James Smartd11f54b2017-03-04 09:30:24 -0800961 break;
James Smart895427b2017-02-12 13:52:30 -0800962 if (ndlp && ndlp->active_rrqs_xri_bitmap &&
963 test_bit(sglq->sli4_lxritag,
964 ndlp->active_rrqs_xri_bitmap)) {
James Smart19ca7602010-11-20 23:11:55 -0500965 /* This xri has an rrq outstanding for this DID.
966 * put it back in the list and get another xri.
967 */
James Smart895427b2017-02-12 13:52:30 -0800968 list_add_tail(&sglq->list, lpfc_els_sgl_list);
James Smart19ca7602010-11-20 23:11:55 -0500969 sglq = NULL;
James Smart895427b2017-02-12 13:52:30 -0800970 list_remove_head(lpfc_els_sgl_list, sglq,
James Smart19ca7602010-11-20 23:11:55 -0500971 struct lpfc_sglq, list);
972 if (sglq == start_sglq) {
James Smart14041bd2017-06-01 21:07:01 -0700973 list_add_tail(&sglq->list, lpfc_els_sgl_list);
James Smart19ca7602010-11-20 23:11:55 -0500974 sglq = NULL;
975 break;
976 } else
977 continue;
978 }
979 sglq->ndlp = ndlp;
980 found = 1;
James Smart6d368e52011-05-24 11:44:12 -0400981 phba->sli4_hba.lpfc_sglq_active_list[sglq->sli4_lxritag] = sglq;
James Smart19ca7602010-11-20 23:11:55 -0500982 sglq->state = SGL_ALLOCATED;
983 }
James Smart895427b2017-02-12 13:52:30 -0800984 spin_unlock(&phba->sli4_hba.sgl_list_lock);
James Smartda0436e2009-05-22 14:51:39 -0400985 return sglq;
986}
987
988/**
James Smartf358dd02017-02-12 13:52:34 -0800989 * __lpfc_sli_get_nvmet_sglq - Allocates an iocb object from sgl pool
990 * @phba: Pointer to HBA context object.
991 * @piocb: Pointer to the iocbq.
992 *
993 * This function is called with the sgl_list lock held. This function
994 * gets a new driver sglq object from the sglq list. If the
995 * list is not empty then it is successful, it returns pointer to the newly
996 * allocated sglq object else it returns NULL.
997 **/
998struct lpfc_sglq *
999__lpfc_sli_get_nvmet_sglq(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq)
1000{
1001 struct list_head *lpfc_nvmet_sgl_list;
1002 struct lpfc_sglq *sglq = NULL;
1003
1004 lpfc_nvmet_sgl_list = &phba->sli4_hba.lpfc_nvmet_sgl_list;
1005
1006 lockdep_assert_held(&phba->sli4_hba.sgl_list_lock);
1007
1008 list_remove_head(lpfc_nvmet_sgl_list, sglq, struct lpfc_sglq, list);
1009 if (!sglq)
1010 return NULL;
1011 phba->sli4_hba.lpfc_sglq_active_list[sglq->sli4_lxritag] = sglq;
1012 sglq->state = SGL_ALLOCATED;
dea31012005-04-17 16:05:31 -05001013 return sglq;
1014}
1015
James Smarte59058c2008-08-24 21:49:00 -04001016/**
James Smart3621a712009-04-06 18:47:14 -04001017 * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
James Smarte59058c2008-08-24 21:49:00 -04001018 * @phba: Pointer to HBA context object.
1019 *
1020 * This function is called with no lock held. This function
1021 * allocates a new driver iocb object from the iocb pool. If the
1022 * allocation is successful, it returns pointer to the newly
1023 * allocated iocb object else it returns NULL.
1024 **/
James Smart2e0fef82007-06-17 19:56:36 -05001025struct lpfc_iocbq *
1026lpfc_sli_get_iocbq(struct lpfc_hba *phba)
James Bottomley604a3e32005-10-29 10:28:33 -05001027{
James Smart2e0fef82007-06-17 19:56:36 -05001028 struct lpfc_iocbq * iocbq = NULL;
1029 unsigned long iflags;
1030
1031 spin_lock_irqsave(&phba->hbalock, iflags);
1032 iocbq = __lpfc_sli_get_iocbq(phba);
1033 spin_unlock_irqrestore(&phba->hbalock, iflags);
1034 return iocbq;
1035}
1036
James Smarte59058c2008-08-24 21:49:00 -04001037/**
James Smart4f774512009-05-22 14:52:35 -04001038 * __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool
1039 * @phba: Pointer to HBA context object.
1040 * @iocbq: Pointer to driver iocb object.
1041 *
1042 * This function is called with hbalock held to release driver
1043 * iocb object to the iocb pool. The iotag in the iocb object
1044 * does not change for each use of the iocb object. This function
1045 * clears all other fields of the iocb object when it is freed.
1046 * The sqlq structure that holds the xritag and phys and virtual
1047 * mappings for the scatter gather list is retrieved from the
1048 * active array of sglq. The get of the sglq pointer also clears
1049 * the entry in the array. If the status of the IO indiactes that
1050 * this IO was aborted then the sglq entry it put on the
1051 * lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the
1052 * IO has good status or fails for any other reason then the sglq
James Smart895427b2017-02-12 13:52:30 -08001053 * entry is added to the free list (lpfc_els_sgl_list).
James Smart4f774512009-05-22 14:52:35 -04001054 **/
1055static void
1056__lpfc_sli_release_iocbq_s4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1057{
1058 struct lpfc_sglq *sglq;
1059 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
James Smart2a9bf3d2010-06-07 15:24:45 -04001060 unsigned long iflag = 0;
James Smart895427b2017-02-12 13:52:30 -08001061 struct lpfc_sli_ring *pring;
James Smart4f774512009-05-22 14:52:35 -04001062
Johannes Thumshirn1c2ba472016-01-20 16:22:22 +01001063 lockdep_assert_held(&phba->hbalock);
1064
James Smart4f774512009-05-22 14:52:35 -04001065 if (iocbq->sli4_xritag == NO_XRI)
1066 sglq = NULL;
1067 else
James Smart6d368e52011-05-24 11:44:12 -04001068 sglq = __lpfc_clear_active_sglq(phba, iocbq->sli4_lxritag);
1069
James Smart0e9bb8d2013-03-01 16:35:12 -05001070
James Smart4f774512009-05-22 14:52:35 -04001071 if (sglq) {
James Smartf358dd02017-02-12 13:52:34 -08001072 if (iocbq->iocb_flag & LPFC_IO_NVMET) {
1073 spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock,
1074 iflag);
James Smart0f65ff62010-02-26 14:14:23 -05001075 sglq->state = SGL_FREED;
James Smart19ca7602010-11-20 23:11:55 -05001076 sglq->ndlp = NULL;
James Smartfedd3b72011-02-16 12:39:24 -05001077 list_add_tail(&sglq->list,
James Smartf358dd02017-02-12 13:52:34 -08001078 &phba->sli4_hba.lpfc_nvmet_sgl_list);
1079 spin_unlock_irqrestore(
1080 &phba->sli4_hba.sgl_list_lock, iflag);
1081 goto out;
1082 }
1083
James Smart895427b2017-02-12 13:52:30 -08001084 pring = phba->sli4_hba.els_wq->pring;
James Smart4f774512009-05-22 14:52:35 -04001085 if ((iocbq->iocb_flag & LPFC_EXCHANGE_BUSY) &&
1086 (sglq->state != SGL_XRI_ABORTED)) {
James Smart895427b2017-02-12 13:52:30 -08001087 spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock,
1088 iflag);
James Smart341af102010-01-26 23:07:37 -05001089 list_add(&sglq->list,
James Smart895427b2017-02-12 13:52:30 -08001090 &phba->sli4_hba.lpfc_abts_els_sgl_list);
James Smart4f774512009-05-22 14:52:35 -04001091 spin_unlock_irqrestore(
James Smart895427b2017-02-12 13:52:30 -08001092 &phba->sli4_hba.sgl_list_lock, iflag);
James Smart4f774512009-05-22 14:52:35 -04001093 } else {
James Smart895427b2017-02-12 13:52:30 -08001094 spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock,
1095 iflag);
James Smart4f774512009-05-22 14:52:35 -04001096 sglq->state = SGL_FREED;
1097 sglq->ndlp = NULL;
James Smartfedd3b72011-02-16 12:39:24 -05001098 list_add_tail(&sglq->list,
James Smart895427b2017-02-12 13:52:30 -08001099 &phba->sli4_hba.lpfc_els_sgl_list);
1100 spin_unlock_irqrestore(
1101 &phba->sli4_hba.sgl_list_lock, iflag);
James Smart2a9bf3d2010-06-07 15:24:45 -04001102
1103 /* Check if TXQ queue needs to be serviced */
James Smart0e9bb8d2013-03-01 16:35:12 -05001104 if (!list_empty(&pring->txq))
James Smart2a9bf3d2010-06-07 15:24:45 -04001105 lpfc_worker_wake_up(phba);
James Smart0f65ff62010-02-26 14:14:23 -05001106 }
James Smart4f774512009-05-22 14:52:35 -04001107 }
1108
James Smartf358dd02017-02-12 13:52:34 -08001109out:
James Smart4f774512009-05-22 14:52:35 -04001110 /*
1111 * Clean all volatile data fields, preserve iotag and node struct.
1112 */
1113 memset((char *)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
James Smart6d368e52011-05-24 11:44:12 -04001114 iocbq->sli4_lxritag = NO_XRI;
James Smart4f774512009-05-22 14:52:35 -04001115 iocbq->sli4_xritag = NO_XRI;
James Smartf358dd02017-02-12 13:52:34 -08001116 iocbq->iocb_flag &= ~(LPFC_IO_NVME | LPFC_IO_NVMET |
1117 LPFC_IO_NVME_LS);
James Smart4f774512009-05-22 14:52:35 -04001118 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1119}
1120
James Smart2a9bf3d2010-06-07 15:24:45 -04001121
James Smart4f774512009-05-22 14:52:35 -04001122/**
James Smart3772a992009-05-22 14:50:54 -04001123 * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool
1124 * @phba: Pointer to HBA context object.
1125 * @iocbq: Pointer to driver iocb object.
1126 *
1127 * This function is called with hbalock held to release driver
1128 * iocb object to the iocb pool. The iotag in the iocb object
1129 * does not change for each use of the iocb object. This function
1130 * clears all other fields of the iocb object when it is freed.
1131 **/
1132static void
1133__lpfc_sli_release_iocbq_s3(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1134{
1135 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
1136
Johannes Thumshirn1c2ba472016-01-20 16:22:22 +01001137 lockdep_assert_held(&phba->hbalock);
James Smart0e9bb8d2013-03-01 16:35:12 -05001138
1139 /*
James Smart3772a992009-05-22 14:50:54 -04001140 * Clean all volatile data fields, preserve iotag and node struct.
1141 */
1142 memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
1143 iocbq->sli4_xritag = NO_XRI;
1144 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1145}
1146
1147/**
James Smart3621a712009-04-06 18:47:14 -04001148 * __lpfc_sli_release_iocbq - Release iocb to the iocb pool
James Smarte59058c2008-08-24 21:49:00 -04001149 * @phba: Pointer to HBA context object.
1150 * @iocbq: Pointer to driver iocb object.
1151 *
1152 * This function is called with hbalock held to release driver
1153 * iocb object to the iocb pool. The iotag in the iocb object
1154 * does not change for each use of the iocb object. This function
1155 * clears all other fields of the iocb object when it is freed.
1156 **/
Adrian Bunka6ababd2007-11-05 18:07:33 +01001157static void
James Smart2e0fef82007-06-17 19:56:36 -05001158__lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1159{
Johannes Thumshirn1c2ba472016-01-20 16:22:22 +01001160 lockdep_assert_held(&phba->hbalock);
1161
James Smart3772a992009-05-22 14:50:54 -04001162 phba->__lpfc_sli_release_iocbq(phba, iocbq);
James Smart2a9bf3d2010-06-07 15:24:45 -04001163 phba->iocb_cnt--;
James Bottomley604a3e32005-10-29 10:28:33 -05001164}
1165
James Smarte59058c2008-08-24 21:49:00 -04001166/**
James Smart3621a712009-04-06 18:47:14 -04001167 * lpfc_sli_release_iocbq - Release iocb to the iocb pool
James Smarte59058c2008-08-24 21:49:00 -04001168 * @phba: Pointer to HBA context object.
1169 * @iocbq: Pointer to driver iocb object.
1170 *
1171 * This function is called with no lock held to release the iocb to
1172 * iocb pool.
1173 **/
James Smart2e0fef82007-06-17 19:56:36 -05001174void
1175lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1176{
1177 unsigned long iflags;
1178
1179 /*
1180 * Clean all volatile data fields, preserve iotag and node struct.
1181 */
1182 spin_lock_irqsave(&phba->hbalock, iflags);
1183 __lpfc_sli_release_iocbq(phba, iocbq);
1184 spin_unlock_irqrestore(&phba->hbalock, iflags);
1185}
1186
James Smarte59058c2008-08-24 21:49:00 -04001187/**
James Smarta257bf92009-04-06 18:48:10 -04001188 * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list.
1189 * @phba: Pointer to HBA context object.
1190 * @iocblist: List of IOCBs.
1191 * @ulpstatus: ULP status in IOCB command field.
1192 * @ulpWord4: ULP word-4 in IOCB command field.
1193 *
1194 * This function is called with a list of IOCBs to cancel. It cancels the IOCB
1195 * on the list by invoking the complete callback function associated with the
1196 * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond
1197 * fields.
1198 **/
1199void
1200lpfc_sli_cancel_iocbs(struct lpfc_hba *phba, struct list_head *iocblist,
1201 uint32_t ulpstatus, uint32_t ulpWord4)
1202{
1203 struct lpfc_iocbq *piocb;
1204
1205 while (!list_empty(iocblist)) {
1206 list_remove_head(iocblist, piocb, struct lpfc_iocbq, list);
James Smarta257bf92009-04-06 18:48:10 -04001207 if (!piocb->iocb_cmpl)
1208 lpfc_sli_release_iocbq(phba, piocb);
1209 else {
1210 piocb->iocb.ulpStatus = ulpstatus;
1211 piocb->iocb.un.ulpWord[4] = ulpWord4;
1212 (piocb->iocb_cmpl) (phba, piocb, piocb);
1213 }
1214 }
1215 return;
1216}
1217
1218/**
James Smart3621a712009-04-06 18:47:14 -04001219 * lpfc_sli_iocb_cmd_type - Get the iocb type
1220 * @iocb_cmnd: iocb command code.
James Smarte59058c2008-08-24 21:49:00 -04001221 *
1222 * This function is called by ring event handler function to get the iocb type.
1223 * This function translates the iocb command to an iocb command type used to
1224 * decide the final disposition of each completed IOCB.
1225 * The function returns
1226 * LPFC_UNKNOWN_IOCB if it is an unsupported iocb
1227 * LPFC_SOL_IOCB if it is a solicited iocb completion
1228 * LPFC_ABORT_IOCB if it is an abort iocb
1229 * LPFC_UNSOL_IOCB if it is an unsolicited iocb
1230 *
1231 * The caller is not required to hold any lock.
1232 **/
dea31012005-04-17 16:05:31 -05001233static lpfc_iocb_type
1234lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd)
1235{
1236 lpfc_iocb_type type = LPFC_UNKNOWN_IOCB;
1237
1238 if (iocb_cmnd > CMD_MAX_IOCB_CMD)
1239 return 0;
1240
1241 switch (iocb_cmnd) {
1242 case CMD_XMIT_SEQUENCE_CR:
1243 case CMD_XMIT_SEQUENCE_CX:
1244 case CMD_XMIT_BCAST_CN:
1245 case CMD_XMIT_BCAST_CX:
1246 case CMD_ELS_REQUEST_CR:
1247 case CMD_ELS_REQUEST_CX:
1248 case CMD_CREATE_XRI_CR:
1249 case CMD_CREATE_XRI_CX:
1250 case CMD_GET_RPI_CN:
1251 case CMD_XMIT_ELS_RSP_CX:
1252 case CMD_GET_RPI_CR:
1253 case CMD_FCP_IWRITE_CR:
1254 case CMD_FCP_IWRITE_CX:
1255 case CMD_FCP_IREAD_CR:
1256 case CMD_FCP_IREAD_CX:
1257 case CMD_FCP_ICMND_CR:
1258 case CMD_FCP_ICMND_CX:
James Smartf5603512006-12-02 13:35:43 -05001259 case CMD_FCP_TSEND_CX:
1260 case CMD_FCP_TRSP_CX:
1261 case CMD_FCP_TRECEIVE_CX:
1262 case CMD_FCP_AUTO_TRSP_CX:
dea31012005-04-17 16:05:31 -05001263 case CMD_ADAPTER_MSG:
1264 case CMD_ADAPTER_DUMP:
1265 case CMD_XMIT_SEQUENCE64_CR:
1266 case CMD_XMIT_SEQUENCE64_CX:
1267 case CMD_XMIT_BCAST64_CN:
1268 case CMD_XMIT_BCAST64_CX:
1269 case CMD_ELS_REQUEST64_CR:
1270 case CMD_ELS_REQUEST64_CX:
1271 case CMD_FCP_IWRITE64_CR:
1272 case CMD_FCP_IWRITE64_CX:
1273 case CMD_FCP_IREAD64_CR:
1274 case CMD_FCP_IREAD64_CX:
1275 case CMD_FCP_ICMND64_CR:
1276 case CMD_FCP_ICMND64_CX:
James Smartf5603512006-12-02 13:35:43 -05001277 case CMD_FCP_TSEND64_CX:
1278 case CMD_FCP_TRSP64_CX:
1279 case CMD_FCP_TRECEIVE64_CX:
dea31012005-04-17 16:05:31 -05001280 case CMD_GEN_REQUEST64_CR:
1281 case CMD_GEN_REQUEST64_CX:
1282 case CMD_XMIT_ELS_RSP64_CX:
James Smartda0436e2009-05-22 14:51:39 -04001283 case DSSCMD_IWRITE64_CR:
1284 case DSSCMD_IWRITE64_CX:
1285 case DSSCMD_IREAD64_CR:
1286 case DSSCMD_IREAD64_CX:
dea31012005-04-17 16:05:31 -05001287 type = LPFC_SOL_IOCB;
1288 break;
1289 case CMD_ABORT_XRI_CN:
1290 case CMD_ABORT_XRI_CX:
1291 case CMD_CLOSE_XRI_CN:
1292 case CMD_CLOSE_XRI_CX:
1293 case CMD_XRI_ABORTED_CX:
1294 case CMD_ABORT_MXRI64_CN:
James Smart6669f9b2009-10-02 15:16:45 -04001295 case CMD_XMIT_BLS_RSP64_CX:
dea31012005-04-17 16:05:31 -05001296 type = LPFC_ABORT_IOCB;
1297 break;
1298 case CMD_RCV_SEQUENCE_CX:
1299 case CMD_RCV_ELS_REQ_CX:
1300 case CMD_RCV_SEQUENCE64_CX:
1301 case CMD_RCV_ELS_REQ64_CX:
James Smart57127f12007-10-27 13:37:05 -04001302 case CMD_ASYNC_STATUS:
James Smarted957682007-06-17 19:56:37 -05001303 case CMD_IOCB_RCV_SEQ64_CX:
1304 case CMD_IOCB_RCV_ELS64_CX:
1305 case CMD_IOCB_RCV_CONT64_CX:
James Smart3163f722008-02-08 18:50:25 -05001306 case CMD_IOCB_RET_XRI64_CX:
dea31012005-04-17 16:05:31 -05001307 type = LPFC_UNSOL_IOCB;
1308 break;
James Smart3163f722008-02-08 18:50:25 -05001309 case CMD_IOCB_XMIT_MSEQ64_CR:
1310 case CMD_IOCB_XMIT_MSEQ64_CX:
1311 case CMD_IOCB_RCV_SEQ_LIST64_CX:
1312 case CMD_IOCB_RCV_ELS_LIST64_CX:
1313 case CMD_IOCB_CLOSE_EXTENDED_CN:
1314 case CMD_IOCB_ABORT_EXTENDED_CN:
1315 case CMD_IOCB_RET_HBQE64_CN:
1316 case CMD_IOCB_FCP_IBIDIR64_CR:
1317 case CMD_IOCB_FCP_IBIDIR64_CX:
1318 case CMD_IOCB_FCP_ITASKMGT64_CX:
1319 case CMD_IOCB_LOGENTRY_CN:
1320 case CMD_IOCB_LOGENTRY_ASYNC_CN:
1321 printk("%s - Unhandled SLI-3 Command x%x\n",
Harvey Harrisoncadbd4a2008-07-03 23:47:27 -07001322 __func__, iocb_cmnd);
James Smart3163f722008-02-08 18:50:25 -05001323 type = LPFC_UNKNOWN_IOCB;
1324 break;
dea31012005-04-17 16:05:31 -05001325 default:
1326 type = LPFC_UNKNOWN_IOCB;
1327 break;
1328 }
1329
1330 return type;
1331}
1332
James Smarte59058c2008-08-24 21:49:00 -04001333/**
James Smart3621a712009-04-06 18:47:14 -04001334 * lpfc_sli_ring_map - Issue config_ring mbox for all rings
James Smarte59058c2008-08-24 21:49:00 -04001335 * @phba: Pointer to HBA context object.
1336 *
1337 * This function is called from SLI initialization code
1338 * to configure every ring of the HBA's SLI interface. The
1339 * caller is not required to hold any lock. This function issues
1340 * a config_ring mailbox command for each ring.
1341 * This function returns zero if successful else returns a negative
1342 * error code.
1343 **/
dea31012005-04-17 16:05:31 -05001344static int
James Smarted957682007-06-17 19:56:37 -05001345lpfc_sli_ring_map(struct lpfc_hba *phba)
dea31012005-04-17 16:05:31 -05001346{
1347 struct lpfc_sli *psli = &phba->sli;
James Smarted957682007-06-17 19:56:37 -05001348 LPFC_MBOXQ_t *pmb;
1349 MAILBOX_t *pmbox;
1350 int i, rc, ret = 0;
dea31012005-04-17 16:05:31 -05001351
James Smarted957682007-06-17 19:56:37 -05001352 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1353 if (!pmb)
1354 return -ENOMEM;
James Smart04c68492009-05-22 14:52:52 -04001355 pmbox = &pmb->u.mb;
James Smarted957682007-06-17 19:56:37 -05001356 phba->link_state = LPFC_INIT_MBX_CMDS;
dea31012005-04-17 16:05:31 -05001357 for (i = 0; i < psli->num_rings; i++) {
dea31012005-04-17 16:05:31 -05001358 lpfc_config_ring(phba, i, pmb);
1359 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
1360 if (rc != MBX_SUCCESS) {
James Smart92d7f7b2007-06-17 19:56:38 -05001361 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04001362 "0446 Adapter failed to init (%d), "
dea31012005-04-17 16:05:31 -05001363 "mbxCmd x%x CFG_RING, mbxStatus x%x, "
1364 "ring %d\n",
James Smarte8b62012007-08-02 11:10:09 -04001365 rc, pmbox->mbxCommand,
1366 pmbox->mbxStatus, i);
James Smart2e0fef82007-06-17 19:56:36 -05001367 phba->link_state = LPFC_HBA_ERROR;
James Smarted957682007-06-17 19:56:37 -05001368 ret = -ENXIO;
1369 break;
dea31012005-04-17 16:05:31 -05001370 }
1371 }
James Smarted957682007-06-17 19:56:37 -05001372 mempool_free(pmb, phba->mbox_mem_pool);
1373 return ret;
dea31012005-04-17 16:05:31 -05001374}
1375
James Smarte59058c2008-08-24 21:49:00 -04001376/**
James Smart3621a712009-04-06 18:47:14 -04001377 * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq
James Smarte59058c2008-08-24 21:49:00 -04001378 * @phba: Pointer to HBA context object.
1379 * @pring: Pointer to driver SLI ring object.
1380 * @piocb: Pointer to the driver iocb object.
1381 *
1382 * This function is called with hbalock held. The function adds the
1383 * new iocb to txcmplq of the given ring. This function always returns
1384 * 0. If this function is called for ELS ring, this function checks if
1385 * there is a vport associated with the ELS command. This function also
1386 * starts els_tmofunc timer if this is an ELS command.
1387 **/
dea31012005-04-17 16:05:31 -05001388static int
James Smart2e0fef82007-06-17 19:56:36 -05001389lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1390 struct lpfc_iocbq *piocb)
dea31012005-04-17 16:05:31 -05001391{
Johannes Thumshirn1c2ba472016-01-20 16:22:22 +01001392 lockdep_assert_held(&phba->hbalock);
1393
Mauricio Faria de Oliveira2319f842016-11-23 10:33:19 -02001394 BUG_ON(!piocb);
Johannes Thumshirn22466da2016-07-29 15:30:56 +02001395
dea31012005-04-17 16:05:31 -05001396 list_add_tail(&piocb->list, &pring->txcmplq);
James Smart4f2e66c2012-05-09 21:17:07 -04001397 piocb->iocb_flag |= LPFC_IO_ON_TXCMPLQ;
James Smart2a9bf3d2010-06-07 15:24:45 -04001398
James Smart92d7f7b2007-06-17 19:56:38 -05001399 if ((unlikely(pring->ringno == LPFC_ELS_RING)) &&
1400 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
Mauricio Faria de Oliveira2319f842016-11-23 10:33:19 -02001401 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
1402 BUG_ON(!piocb->vport);
1403 if (!(piocb->vport->load_flag & FC_UNLOADING))
1404 mod_timer(&piocb->vport->els_tmofunc,
1405 jiffies +
1406 msecs_to_jiffies(1000 * (phba->fc_ratov << 1)));
1407 }
dea31012005-04-17 16:05:31 -05001408
James Smart2e0fef82007-06-17 19:56:36 -05001409 return 0;
dea31012005-04-17 16:05:31 -05001410}
1411
James Smarte59058c2008-08-24 21:49:00 -04001412/**
James Smart3621a712009-04-06 18:47:14 -04001413 * lpfc_sli_ringtx_get - Get first element of the txq
James Smarte59058c2008-08-24 21:49:00 -04001414 * @phba: Pointer to HBA context object.
1415 * @pring: Pointer to driver SLI ring object.
1416 *
1417 * This function is called with hbalock held to get next
1418 * iocb in txq of the given ring. If there is any iocb in
1419 * the txq, the function returns first iocb in the list after
1420 * removing the iocb from the list, else it returns NULL.
1421 **/
James Smart2a9bf3d2010-06-07 15:24:45 -04001422struct lpfc_iocbq *
James Smart2e0fef82007-06-17 19:56:36 -05001423lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
dea31012005-04-17 16:05:31 -05001424{
dea31012005-04-17 16:05:31 -05001425 struct lpfc_iocbq *cmd_iocb;
1426
Johannes Thumshirn1c2ba472016-01-20 16:22:22 +01001427 lockdep_assert_held(&phba->hbalock);
1428
James Smart858c9f62007-06-17 19:56:39 -05001429 list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list);
James Smart2e0fef82007-06-17 19:56:36 -05001430 return cmd_iocb;
dea31012005-04-17 16:05:31 -05001431}
1432
James Smarte59058c2008-08-24 21:49:00 -04001433/**
James Smart3621a712009-04-06 18:47:14 -04001434 * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring
James Smarte59058c2008-08-24 21:49:00 -04001435 * @phba: Pointer to HBA context object.
1436 * @pring: Pointer to driver SLI ring object.
1437 *
1438 * This function is called with hbalock held and the caller must post the
1439 * iocb without releasing the lock. If the caller releases the lock,
1440 * iocb slot returned by the function is not guaranteed to be available.
1441 * The function returns pointer to the next available iocb slot if there
1442 * is available slot in the ring, else it returns NULL.
1443 * If the get index of the ring is ahead of the put index, the function
1444 * will post an error attention event to the worker thread to take the
1445 * HBA to offline state.
1446 **/
dea31012005-04-17 16:05:31 -05001447static IOCB_t *
1448lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1449{
James Smart34b02dc2008-08-24 21:49:55 -04001450 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
James Smart7e56aa22012-08-03 12:35:34 -04001451 uint32_t max_cmd_idx = pring->sli.sli3.numCiocb;
Johannes Thumshirn1c2ba472016-01-20 16:22:22 +01001452
1453 lockdep_assert_held(&phba->hbalock);
1454
James Smart7e56aa22012-08-03 12:35:34 -04001455 if ((pring->sli.sli3.next_cmdidx == pring->sli.sli3.cmdidx) &&
1456 (++pring->sli.sli3.next_cmdidx >= max_cmd_idx))
1457 pring->sli.sli3.next_cmdidx = 0;
dea31012005-04-17 16:05:31 -05001458
James Smart7e56aa22012-08-03 12:35:34 -04001459 if (unlikely(pring->sli.sli3.local_getidx ==
1460 pring->sli.sli3.next_cmdidx)) {
dea31012005-04-17 16:05:31 -05001461
James Smart7e56aa22012-08-03 12:35:34 -04001462 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
dea31012005-04-17 16:05:31 -05001463
James Smart7e56aa22012-08-03 12:35:34 -04001464 if (unlikely(pring->sli.sli3.local_getidx >= max_cmd_idx)) {
dea31012005-04-17 16:05:31 -05001465 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04001466 "0315 Ring %d issue: portCmdGet %d "
Frederik Schwarzer025dfda2008-10-16 19:02:37 +02001467 "is bigger than cmd ring %d\n",
James Smarte8b62012007-08-02 11:10:09 -04001468 pring->ringno,
James Smart7e56aa22012-08-03 12:35:34 -04001469 pring->sli.sli3.local_getidx,
1470 max_cmd_idx);
dea31012005-04-17 16:05:31 -05001471
James Smart2e0fef82007-06-17 19:56:36 -05001472 phba->link_state = LPFC_HBA_ERROR;
dea31012005-04-17 16:05:31 -05001473 /*
1474 * All error attention handlers are posted to
1475 * worker thread
1476 */
1477 phba->work_ha |= HA_ERATT;
1478 phba->work_hs = HS_FFER3;
James Smart92d7f7b2007-06-17 19:56:38 -05001479
James Smart5e9d9b82008-06-14 22:52:53 -04001480 lpfc_worker_wake_up(phba);
dea31012005-04-17 16:05:31 -05001481
1482 return NULL;
1483 }
1484
James Smart7e56aa22012-08-03 12:35:34 -04001485 if (pring->sli.sli3.local_getidx == pring->sli.sli3.next_cmdidx)
dea31012005-04-17 16:05:31 -05001486 return NULL;
1487 }
1488
James Smarted957682007-06-17 19:56:37 -05001489 return lpfc_cmd_iocb(phba, pring);
dea31012005-04-17 16:05:31 -05001490}
1491
James Smarte59058c2008-08-24 21:49:00 -04001492/**
James Smart3621a712009-04-06 18:47:14 -04001493 * lpfc_sli_next_iotag - Get an iotag for the iocb
James Smarte59058c2008-08-24 21:49:00 -04001494 * @phba: Pointer to HBA context object.
1495 * @iocbq: Pointer to driver iocb object.
1496 *
1497 * This function gets an iotag for the iocb. If there is no unused iotag and
1498 * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup
1499 * array and assigns a new iotag.
1500 * The function returns the allocated iotag if successful, else returns zero.
1501 * Zero is not a valid iotag.
1502 * The caller is not required to hold any lock.
1503 **/
James Bottomley604a3e32005-10-29 10:28:33 -05001504uint16_t
James Smart2e0fef82007-06-17 19:56:36 -05001505lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
dea31012005-04-17 16:05:31 -05001506{
James Smart2e0fef82007-06-17 19:56:36 -05001507 struct lpfc_iocbq **new_arr;
1508 struct lpfc_iocbq **old_arr;
James Bottomley604a3e32005-10-29 10:28:33 -05001509 size_t new_len;
1510 struct lpfc_sli *psli = &phba->sli;
1511 uint16_t iotag;
dea31012005-04-17 16:05:31 -05001512
James Smart2e0fef82007-06-17 19:56:36 -05001513 spin_lock_irq(&phba->hbalock);
James Bottomley604a3e32005-10-29 10:28:33 -05001514 iotag = psli->last_iotag;
1515 if(++iotag < psli->iocbq_lookup_len) {
1516 psli->last_iotag = iotag;
1517 psli->iocbq_lookup[iotag] = iocbq;
James Smart2e0fef82007-06-17 19:56:36 -05001518 spin_unlock_irq(&phba->hbalock);
James Bottomley604a3e32005-10-29 10:28:33 -05001519 iocbq->iotag = iotag;
1520 return iotag;
James Smart2e0fef82007-06-17 19:56:36 -05001521 } else if (psli->iocbq_lookup_len < (0xffff
James Bottomley604a3e32005-10-29 10:28:33 -05001522 - LPFC_IOCBQ_LOOKUP_INCREMENT)) {
1523 new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT;
James Smart2e0fef82007-06-17 19:56:36 -05001524 spin_unlock_irq(&phba->hbalock);
1525 new_arr = kzalloc(new_len * sizeof (struct lpfc_iocbq *),
James Bottomley604a3e32005-10-29 10:28:33 -05001526 GFP_KERNEL);
1527 if (new_arr) {
James Smart2e0fef82007-06-17 19:56:36 -05001528 spin_lock_irq(&phba->hbalock);
James Bottomley604a3e32005-10-29 10:28:33 -05001529 old_arr = psli->iocbq_lookup;
1530 if (new_len <= psli->iocbq_lookup_len) {
1531 /* highly unprobable case */
1532 kfree(new_arr);
1533 iotag = psli->last_iotag;
1534 if(++iotag < psli->iocbq_lookup_len) {
1535 psli->last_iotag = iotag;
1536 psli->iocbq_lookup[iotag] = iocbq;
James Smart2e0fef82007-06-17 19:56:36 -05001537 spin_unlock_irq(&phba->hbalock);
James Bottomley604a3e32005-10-29 10:28:33 -05001538 iocbq->iotag = iotag;
1539 return iotag;
1540 }
James Smart2e0fef82007-06-17 19:56:36 -05001541 spin_unlock_irq(&phba->hbalock);
James Bottomley604a3e32005-10-29 10:28:33 -05001542 return 0;
1543 }
1544 if (psli->iocbq_lookup)
1545 memcpy(new_arr, old_arr,
1546 ((psli->last_iotag + 1) *
James Smart311464e2007-08-02 11:10:37 -04001547 sizeof (struct lpfc_iocbq *)));
James Bottomley604a3e32005-10-29 10:28:33 -05001548 psli->iocbq_lookup = new_arr;
1549 psli->iocbq_lookup_len = new_len;
1550 psli->last_iotag = iotag;
1551 psli->iocbq_lookup[iotag] = iocbq;
James Smart2e0fef82007-06-17 19:56:36 -05001552 spin_unlock_irq(&phba->hbalock);
James Bottomley604a3e32005-10-29 10:28:33 -05001553 iocbq->iotag = iotag;
1554 kfree(old_arr);
1555 return iotag;
1556 }
James Smart8f6d98d2006-08-01 07:34:00 -04001557 } else
James Smart2e0fef82007-06-17 19:56:36 -05001558 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05001559
James Smartbc739052010-08-04 16:11:18 -04001560 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04001561 "0318 Failed to allocate IOTAG.last IOTAG is %d\n",
1562 psli->last_iotag);
dea31012005-04-17 16:05:31 -05001563
James Bottomley604a3e32005-10-29 10:28:33 -05001564 return 0;
dea31012005-04-17 16:05:31 -05001565}
1566
James Smarte59058c2008-08-24 21:49:00 -04001567/**
James Smart3621a712009-04-06 18:47:14 -04001568 * lpfc_sli_submit_iocb - Submit an iocb to the firmware
James Smarte59058c2008-08-24 21:49:00 -04001569 * @phba: Pointer to HBA context object.
1570 * @pring: Pointer to driver SLI ring object.
1571 * @iocb: Pointer to iocb slot in the ring.
1572 * @nextiocb: Pointer to driver iocb object which need to be
1573 * posted to firmware.
1574 *
1575 * This function is called with hbalock held to post a new iocb to
1576 * the firmware. This function copies the new iocb to ring iocb slot and
1577 * updates the ring pointers. It adds the new iocb to txcmplq if there is
1578 * a completion call back for this iocb else the function will free the
1579 * iocb object.
1580 **/
dea31012005-04-17 16:05:31 -05001581static void
1582lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1583 IOCB_t *iocb, struct lpfc_iocbq *nextiocb)
1584{
Johannes Thumshirn1c2ba472016-01-20 16:22:22 +01001585 lockdep_assert_held(&phba->hbalock);
dea31012005-04-17 16:05:31 -05001586 /*
James Bottomley604a3e32005-10-29 10:28:33 -05001587 * Set up an iotag
dea31012005-04-17 16:05:31 -05001588 */
James Bottomley604a3e32005-10-29 10:28:33 -05001589 nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0;
dea31012005-04-17 16:05:31 -05001590
James Smarte2a0a9d2008-12-04 22:40:02 -05001591
James Smarta58cbd52007-08-02 11:09:43 -04001592 if (pring->ringno == LPFC_ELS_RING) {
1593 lpfc_debugfs_slow_ring_trc(phba,
1594 "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x",
1595 *(((uint32_t *) &nextiocb->iocb) + 4),
1596 *(((uint32_t *) &nextiocb->iocb) + 6),
1597 *(((uint32_t *) &nextiocb->iocb) + 7));
1598 }
1599
dea31012005-04-17 16:05:31 -05001600 /*
1601 * Issue iocb command to adapter
1602 */
James Smart92d7f7b2007-06-17 19:56:38 -05001603 lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size);
dea31012005-04-17 16:05:31 -05001604 wmb();
1605 pring->stats.iocb_cmd++;
1606
1607 /*
1608 * If there is no completion routine to call, we can release the
1609 * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
1610 * that have no rsp ring completion, iocb_cmpl MUST be NULL.
1611 */
1612 if (nextiocb->iocb_cmpl)
1613 lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb);
James Bottomley604a3e32005-10-29 10:28:33 -05001614 else
James Smart2e0fef82007-06-17 19:56:36 -05001615 __lpfc_sli_release_iocbq(phba, nextiocb);
dea31012005-04-17 16:05:31 -05001616
1617 /*
1618 * Let the HBA know what IOCB slot will be the next one the
1619 * driver will put a command into.
1620 */
James Smart7e56aa22012-08-03 12:35:34 -04001621 pring->sli.sli3.cmdidx = pring->sli.sli3.next_cmdidx;
1622 writel(pring->sli.sli3.cmdidx, &phba->host_gp[pring->ringno].cmdPutInx);
dea31012005-04-17 16:05:31 -05001623}
1624
James Smarte59058c2008-08-24 21:49:00 -04001625/**
James Smart3621a712009-04-06 18:47:14 -04001626 * lpfc_sli_update_full_ring - Update the chip attention register
James Smarte59058c2008-08-24 21:49:00 -04001627 * @phba: Pointer to HBA context object.
1628 * @pring: Pointer to driver SLI ring object.
1629 *
1630 * The caller is not required to hold any lock for calling this function.
1631 * This function updates the chip attention bits for the ring to inform firmware
1632 * that there are pending work to be done for this ring and requests an
1633 * interrupt when there is space available in the ring. This function is
1634 * called when the driver is unable to post more iocbs to the ring due
1635 * to unavailability of space in the ring.
1636 **/
dea31012005-04-17 16:05:31 -05001637static void
James Smart2e0fef82007-06-17 19:56:36 -05001638lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
dea31012005-04-17 16:05:31 -05001639{
1640 int ringno = pring->ringno;
1641
1642 pring->flag |= LPFC_CALL_RING_AVAILABLE;
1643
1644 wmb();
1645
1646 /*
1647 * Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
1648 * The HBA will tell us when an IOCB entry is available.
1649 */
1650 writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr);
1651 readl(phba->CAregaddr); /* flush */
1652
1653 pring->stats.iocb_cmd_full++;
1654}
1655
James Smarte59058c2008-08-24 21:49:00 -04001656/**
James Smart3621a712009-04-06 18:47:14 -04001657 * lpfc_sli_update_ring - Update chip attention register
James Smarte59058c2008-08-24 21:49:00 -04001658 * @phba: Pointer to HBA context object.
1659 * @pring: Pointer to driver SLI ring object.
1660 *
1661 * This function updates the chip attention register bit for the
1662 * given ring to inform HBA that there is more work to be done
1663 * in this ring. The caller is not required to hold any lock.
1664 **/
dea31012005-04-17 16:05:31 -05001665static void
James Smart2e0fef82007-06-17 19:56:36 -05001666lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
dea31012005-04-17 16:05:31 -05001667{
1668 int ringno = pring->ringno;
1669
1670 /*
1671 * Tell the HBA that there is work to do in this ring.
1672 */
James Smart34b02dc2008-08-24 21:49:55 -04001673 if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) {
1674 wmb();
1675 writel(CA_R0ATT << (ringno * 4), phba->CAregaddr);
1676 readl(phba->CAregaddr); /* flush */
1677 }
dea31012005-04-17 16:05:31 -05001678}
1679
James Smarte59058c2008-08-24 21:49:00 -04001680/**
James Smart3621a712009-04-06 18:47:14 -04001681 * lpfc_sli_resume_iocb - Process iocbs in the txq
James Smarte59058c2008-08-24 21:49:00 -04001682 * @phba: Pointer to HBA context object.
1683 * @pring: Pointer to driver SLI ring object.
1684 *
1685 * This function is called with hbalock held to post pending iocbs
1686 * in the txq to the firmware. This function is called when driver
1687 * detects space available in the ring.
1688 **/
dea31012005-04-17 16:05:31 -05001689static void
James Smart2e0fef82007-06-17 19:56:36 -05001690lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
dea31012005-04-17 16:05:31 -05001691{
1692 IOCB_t *iocb;
1693 struct lpfc_iocbq *nextiocb;
1694
Johannes Thumshirn1c2ba472016-01-20 16:22:22 +01001695 lockdep_assert_held(&phba->hbalock);
1696
dea31012005-04-17 16:05:31 -05001697 /*
1698 * Check to see if:
1699 * (a) there is anything on the txq to send
1700 * (b) link is up
1701 * (c) link attention events can be processed (fcp ring only)
1702 * (d) IOCB processing is not blocked by the outstanding mbox command.
1703 */
James Smart0e9bb8d2013-03-01 16:35:12 -05001704
1705 if (lpfc_is_link_up(phba) &&
1706 (!list_empty(&pring->txq)) &&
James Smart895427b2017-02-12 13:52:30 -08001707 (pring->ringno != LPFC_FCP_RING ||
James Smart0b727fe2007-10-27 13:37:25 -04001708 phba->sli.sli_flag & LPFC_PROCESS_LA)) {
dea31012005-04-17 16:05:31 -05001709
1710 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
1711 (nextiocb = lpfc_sli_ringtx_get(phba, pring)))
1712 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
1713
1714 if (iocb)
1715 lpfc_sli_update_ring(phba, pring);
1716 else
1717 lpfc_sli_update_full_ring(phba, pring);
1718 }
1719
1720 return;
1721}
1722
James Smarte59058c2008-08-24 21:49:00 -04001723/**
James Smart3621a712009-04-06 18:47:14 -04001724 * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ
James Smarte59058c2008-08-24 21:49:00 -04001725 * @phba: Pointer to HBA context object.
1726 * @hbqno: HBQ number.
1727 *
1728 * This function is called with hbalock held to get the next
1729 * available slot for the given HBQ. If there is free slot
1730 * available for the HBQ it will return pointer to the next available
1731 * HBQ entry else it will return NULL.
1732 **/
Adrian Bunka6ababd2007-11-05 18:07:33 +01001733static struct lpfc_hbq_entry *
James Smarted957682007-06-17 19:56:37 -05001734lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno)
1735{
1736 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1737
Johannes Thumshirn1c2ba472016-01-20 16:22:22 +01001738 lockdep_assert_held(&phba->hbalock);
1739
James Smarted957682007-06-17 19:56:37 -05001740 if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx &&
1741 ++hbqp->next_hbqPutIdx >= hbqp->entry_count)
1742 hbqp->next_hbqPutIdx = 0;
1743
1744 if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) {
James Smart92d7f7b2007-06-17 19:56:38 -05001745 uint32_t raw_index = phba->hbq_get[hbqno];
James Smarted957682007-06-17 19:56:37 -05001746 uint32_t getidx = le32_to_cpu(raw_index);
1747
1748 hbqp->local_hbqGetIdx = getidx;
1749
1750 if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) {
1751 lpfc_printf_log(phba, KERN_ERR,
James Smart92d7f7b2007-06-17 19:56:38 -05001752 LOG_SLI | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04001753 "1802 HBQ %d: local_hbqGetIdx "
James Smarted957682007-06-17 19:56:37 -05001754 "%u is > than hbqp->entry_count %u\n",
James Smarte8b62012007-08-02 11:10:09 -04001755 hbqno, hbqp->local_hbqGetIdx,
James Smarted957682007-06-17 19:56:37 -05001756 hbqp->entry_count);
1757
1758 phba->link_state = LPFC_HBA_ERROR;
1759 return NULL;
1760 }
1761
1762 if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)
1763 return NULL;
1764 }
1765
James Smart51ef4c22007-08-02 11:10:31 -04001766 return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt +
1767 hbqp->hbqPutIdx;
James Smarted957682007-06-17 19:56:37 -05001768}
1769
James Smarte59058c2008-08-24 21:49:00 -04001770/**
James Smart3621a712009-04-06 18:47:14 -04001771 * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers
James Smarte59058c2008-08-24 21:49:00 -04001772 * @phba: Pointer to HBA context object.
1773 *
1774 * This function is called with no lock held to free all the
1775 * hbq buffers while uninitializing the SLI interface. It also
1776 * frees the HBQ buffers returned by the firmware but not yet
1777 * processed by the upper layers.
1778 **/
James Smarted957682007-06-17 19:56:37 -05001779void
1780lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba)
1781{
James Smart92d7f7b2007-06-17 19:56:38 -05001782 struct lpfc_dmabuf *dmabuf, *next_dmabuf;
1783 struct hbq_dmabuf *hbq_buf;
James Smart3163f722008-02-08 18:50:25 -05001784 unsigned long flags;
James Smart51ef4c22007-08-02 11:10:31 -04001785 int i, hbq_count;
James Smarted957682007-06-17 19:56:37 -05001786
James Smart51ef4c22007-08-02 11:10:31 -04001787 hbq_count = lpfc_sli_hbq_count();
James Smarted957682007-06-17 19:56:37 -05001788 /* Return all memory used by all HBQs */
James Smart3163f722008-02-08 18:50:25 -05001789 spin_lock_irqsave(&phba->hbalock, flags);
James Smart51ef4c22007-08-02 11:10:31 -04001790 for (i = 0; i < hbq_count; ++i) {
1791 list_for_each_entry_safe(dmabuf, next_dmabuf,
1792 &phba->hbqs[i].hbq_buffer_list, list) {
1793 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1794 list_del(&hbq_buf->dbuf.list);
1795 (phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf);
1796 }
James Smarta8adb832007-10-27 13:37:53 -04001797 phba->hbqs[i].buffer_count = 0;
James Smarted957682007-06-17 19:56:37 -05001798 }
James Smart3163f722008-02-08 18:50:25 -05001799
1800 /* Mark the HBQs not in use */
1801 phba->hbq_in_use = 0;
1802 spin_unlock_irqrestore(&phba->hbalock, flags);
James Smarted957682007-06-17 19:56:37 -05001803}
1804
James Smarte59058c2008-08-24 21:49:00 -04001805/**
James Smart3621a712009-04-06 18:47:14 -04001806 * lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware
James Smarte59058c2008-08-24 21:49:00 -04001807 * @phba: Pointer to HBA context object.
1808 * @hbqno: HBQ number.
1809 * @hbq_buf: Pointer to HBQ buffer.
1810 *
1811 * This function is called with the hbalock held to post a
1812 * hbq buffer to the firmware. If the function finds an empty
1813 * slot in the HBQ, it will post the buffer. The function will return
1814 * pointer to the hbq entry if it successfully post the buffer
1815 * else it will return NULL.
1816 **/
James Smart3772a992009-05-22 14:50:54 -04001817static int
James Smarted957682007-06-17 19:56:37 -05001818lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno,
James Smart92d7f7b2007-06-17 19:56:38 -05001819 struct hbq_dmabuf *hbq_buf)
James Smarted957682007-06-17 19:56:37 -05001820{
Johannes Thumshirn1c2ba472016-01-20 16:22:22 +01001821 lockdep_assert_held(&phba->hbalock);
James Smart3772a992009-05-22 14:50:54 -04001822 return phba->lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buf);
1823}
1824
1825/**
1826 * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware
1827 * @phba: Pointer to HBA context object.
1828 * @hbqno: HBQ number.
1829 * @hbq_buf: Pointer to HBQ buffer.
1830 *
1831 * This function is called with the hbalock held to post a hbq buffer to the
1832 * firmware. If the function finds an empty slot in the HBQ, it will post the
1833 * buffer and place it on the hbq_buffer_list. The function will return zero if
1834 * it successfully post the buffer else it will return an error.
1835 **/
1836static int
1837lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba *phba, uint32_t hbqno,
1838 struct hbq_dmabuf *hbq_buf)
1839{
James Smarted957682007-06-17 19:56:37 -05001840 struct lpfc_hbq_entry *hbqe;
James Smart92d7f7b2007-06-17 19:56:38 -05001841 dma_addr_t physaddr = hbq_buf->dbuf.phys;
James Smarted957682007-06-17 19:56:37 -05001842
Johannes Thumshirn1c2ba472016-01-20 16:22:22 +01001843 lockdep_assert_held(&phba->hbalock);
James Smarted957682007-06-17 19:56:37 -05001844 /* Get next HBQ entry slot to use */
1845 hbqe = lpfc_sli_next_hbq_slot(phba, hbqno);
1846 if (hbqe) {
1847 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1848
James Smart92d7f7b2007-06-17 19:56:38 -05001849 hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr));
1850 hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr));
James Smart895427b2017-02-12 13:52:30 -08001851 hbqe->bde.tus.f.bdeSize = hbq_buf->total_size;
James Smarted957682007-06-17 19:56:37 -05001852 hbqe->bde.tus.f.bdeFlags = 0;
James Smart92d7f7b2007-06-17 19:56:38 -05001853 hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w);
1854 hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag);
1855 /* Sync SLIM */
James Smarted957682007-06-17 19:56:37 -05001856 hbqp->hbqPutIdx = hbqp->next_hbqPutIdx;
1857 writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno);
James Smart92d7f7b2007-06-17 19:56:38 -05001858 /* flush */
James Smarted957682007-06-17 19:56:37 -05001859 readl(phba->hbq_put + hbqno);
James Smart51ef4c22007-08-02 11:10:31 -04001860 list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list);
James Smart3772a992009-05-22 14:50:54 -04001861 return 0;
1862 } else
1863 return -ENOMEM;
James Smarted957682007-06-17 19:56:37 -05001864}
1865
James Smart4f774512009-05-22 14:52:35 -04001866/**
1867 * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware
1868 * @phba: Pointer to HBA context object.
1869 * @hbqno: HBQ number.
1870 * @hbq_buf: Pointer to HBQ buffer.
1871 *
1872 * This function is called with the hbalock held to post an RQE to the SLI4
1873 * firmware. If able to post the RQE to the RQ it will queue the hbq entry to
1874 * the hbq_buffer_list and return zero, otherwise it will return an error.
1875 **/
1876static int
1877lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba *phba, uint32_t hbqno,
1878 struct hbq_dmabuf *hbq_buf)
1879{
1880 int rc;
1881 struct lpfc_rqe hrqe;
1882 struct lpfc_rqe drqe;
James Smart895427b2017-02-12 13:52:30 -08001883 struct lpfc_queue *hrq;
1884 struct lpfc_queue *drq;
1885
1886 if (hbqno != LPFC_ELS_HBQ)
1887 return 1;
1888 hrq = phba->sli4_hba.hdr_rq;
1889 drq = phba->sli4_hba.dat_rq;
James Smart4f774512009-05-22 14:52:35 -04001890
Johannes Thumshirn1c2ba472016-01-20 16:22:22 +01001891 lockdep_assert_held(&phba->hbalock);
James Smart4f774512009-05-22 14:52:35 -04001892 hrqe.address_lo = putPaddrLow(hbq_buf->hbuf.phys);
1893 hrqe.address_hi = putPaddrHigh(hbq_buf->hbuf.phys);
1894 drqe.address_lo = putPaddrLow(hbq_buf->dbuf.phys);
1895 drqe.address_hi = putPaddrHigh(hbq_buf->dbuf.phys);
James Smart895427b2017-02-12 13:52:30 -08001896 rc = lpfc_sli4_rq_put(hrq, drq, &hrqe, &drqe);
James Smart4f774512009-05-22 14:52:35 -04001897 if (rc < 0)
1898 return rc;
James Smart895427b2017-02-12 13:52:30 -08001899 hbq_buf->tag = (rc | (hbqno << 16));
James Smart4f774512009-05-22 14:52:35 -04001900 list_add_tail(&hbq_buf->dbuf.list, &phba->hbqs[hbqno].hbq_buffer_list);
1901 return 0;
1902}
1903
James Smarte59058c2008-08-24 21:49:00 -04001904/* HBQ for ELS and CT traffic. */
James Smart92d7f7b2007-06-17 19:56:38 -05001905static struct lpfc_hbq_init lpfc_els_hbq = {
1906 .rn = 1,
James Smartdef9c7a2009-12-21 17:02:28 -05001907 .entry_count = 256,
James Smart92d7f7b2007-06-17 19:56:38 -05001908 .mask_count = 0,
1909 .profile = 0,
James Smart51ef4c22007-08-02 11:10:31 -04001910 .ring_mask = (1 << LPFC_ELS_RING),
James Smart92d7f7b2007-06-17 19:56:38 -05001911 .buffer_count = 0,
James Smarta257bf92009-04-06 18:48:10 -04001912 .init_count = 40,
1913 .add_count = 40,
James Smart92d7f7b2007-06-17 19:56:38 -05001914};
James Smarted957682007-06-17 19:56:37 -05001915
James Smarte59058c2008-08-24 21:49:00 -04001916/* Array of HBQs */
James Smart78b2d852007-08-02 11:10:21 -04001917struct lpfc_hbq_init *lpfc_hbq_defs[] = {
James Smart92d7f7b2007-06-17 19:56:38 -05001918 &lpfc_els_hbq,
1919};
1920
James Smarte59058c2008-08-24 21:49:00 -04001921/**
James Smart3621a712009-04-06 18:47:14 -04001922 * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ
James Smarte59058c2008-08-24 21:49:00 -04001923 * @phba: Pointer to HBA context object.
1924 * @hbqno: HBQ number.
1925 * @count: Number of HBQ buffers to be posted.
1926 *
James Smartd7c255b2008-08-24 21:50:00 -04001927 * This function is called with no lock held to post more hbq buffers to the
1928 * given HBQ. The function returns the number of HBQ buffers successfully
1929 * posted.
James Smarte59058c2008-08-24 21:49:00 -04001930 **/
James Smart311464e2007-08-02 11:10:37 -04001931static int
James Smart92d7f7b2007-06-17 19:56:38 -05001932lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count)
1933{
James Smartd7c255b2008-08-24 21:50:00 -04001934 uint32_t i, posted = 0;
James Smart3163f722008-02-08 18:50:25 -05001935 unsigned long flags;
James Smart92d7f7b2007-06-17 19:56:38 -05001936 struct hbq_dmabuf *hbq_buffer;
James Smartd7c255b2008-08-24 21:50:00 -04001937 LIST_HEAD(hbq_buf_list);
Matthew Wilcoxeafe1df2008-02-21 05:44:33 -07001938 if (!phba->hbqs[hbqno].hbq_alloc_buffer)
James Smart51ef4c22007-08-02 11:10:31 -04001939 return 0;
James Smart51ef4c22007-08-02 11:10:31 -04001940
James Smartd7c255b2008-08-24 21:50:00 -04001941 if ((phba->hbqs[hbqno].buffer_count + count) >
1942 lpfc_hbq_defs[hbqno]->entry_count)
1943 count = lpfc_hbq_defs[hbqno]->entry_count -
1944 phba->hbqs[hbqno].buffer_count;
1945 if (!count)
1946 return 0;
1947 /* Allocate HBQ entries */
1948 for (i = 0; i < count; i++) {
1949 hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba);
1950 if (!hbq_buffer)
1951 break;
1952 list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list);
1953 }
James Smart3163f722008-02-08 18:50:25 -05001954 /* Check whether HBQ is still in use */
1955 spin_lock_irqsave(&phba->hbalock, flags);
Matthew Wilcoxeafe1df2008-02-21 05:44:33 -07001956 if (!phba->hbq_in_use)
James Smartd7c255b2008-08-24 21:50:00 -04001957 goto err;
1958 while (!list_empty(&hbq_buf_list)) {
1959 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1960 dbuf.list);
1961 hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count |
1962 (hbqno << 16));
James Smart3772a992009-05-22 14:50:54 -04001963 if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) {
James Smarta8adb832007-10-27 13:37:53 -04001964 phba->hbqs[hbqno].buffer_count++;
James Smartd7c255b2008-08-24 21:50:00 -04001965 posted++;
1966 } else
James Smart51ef4c22007-08-02 11:10:31 -04001967 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
James Smart92d7f7b2007-06-17 19:56:38 -05001968 }
James Smart3163f722008-02-08 18:50:25 -05001969 spin_unlock_irqrestore(&phba->hbalock, flags);
James Smartd7c255b2008-08-24 21:50:00 -04001970 return posted;
1971err:
1972 spin_unlock_irqrestore(&phba->hbalock, flags);
1973 while (!list_empty(&hbq_buf_list)) {
1974 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1975 dbuf.list);
1976 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1977 }
James Smart92d7f7b2007-06-17 19:56:38 -05001978 return 0;
James Smarted957682007-06-17 19:56:37 -05001979}
1980
James Smarte59058c2008-08-24 21:49:00 -04001981/**
James Smart3621a712009-04-06 18:47:14 -04001982 * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware
James Smarte59058c2008-08-24 21:49:00 -04001983 * @phba: Pointer to HBA context object.
1984 * @qno: HBQ number.
1985 *
1986 * This function posts more buffers to the HBQ. This function
James Smartd7c255b2008-08-24 21:50:00 -04001987 * is called with no lock held. The function returns the number of HBQ entries
1988 * successfully allocated.
James Smarte59058c2008-08-24 21:49:00 -04001989 **/
James Smarted957682007-06-17 19:56:37 -05001990int
James Smart92d7f7b2007-06-17 19:56:38 -05001991lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno)
James Smarted957682007-06-17 19:56:37 -05001992{
James Smartdef9c7a2009-12-21 17:02:28 -05001993 if (phba->sli_rev == LPFC_SLI_REV4)
1994 return 0;
1995 else
1996 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1997 lpfc_hbq_defs[qno]->add_count);
James Smarted957682007-06-17 19:56:37 -05001998}
1999
James Smarte59058c2008-08-24 21:49:00 -04002000/**
James Smart3621a712009-04-06 18:47:14 -04002001 * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ
James Smarte59058c2008-08-24 21:49:00 -04002002 * @phba: Pointer to HBA context object.
2003 * @qno: HBQ queue number.
2004 *
2005 * This function is called from SLI initialization code path with
2006 * no lock held to post initial HBQ buffers to firmware. The
James Smartd7c255b2008-08-24 21:50:00 -04002007 * function returns the number of HBQ entries successfully allocated.
James Smarte59058c2008-08-24 21:49:00 -04002008 **/
Adrian Bunka6ababd2007-11-05 18:07:33 +01002009static int
James Smart92d7f7b2007-06-17 19:56:38 -05002010lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno)
James Smarted957682007-06-17 19:56:37 -05002011{
James Smartdef9c7a2009-12-21 17:02:28 -05002012 if (phba->sli_rev == LPFC_SLI_REV4)
2013 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
James Smart73d91e52011-10-10 21:32:10 -04002014 lpfc_hbq_defs[qno]->entry_count);
James Smartdef9c7a2009-12-21 17:02:28 -05002015 else
2016 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
2017 lpfc_hbq_defs[qno]->init_count);
James Smarted957682007-06-17 19:56:37 -05002018}
2019
James Smarte59058c2008-08-24 21:49:00 -04002020/**
James Smart3772a992009-05-22 14:50:54 -04002021 * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list
2022 * @phba: Pointer to HBA context object.
2023 * @hbqno: HBQ number.
2024 *
2025 * This function removes the first hbq buffer on an hbq list and returns a
2026 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
2027 **/
2028static struct hbq_dmabuf *
2029lpfc_sli_hbqbuf_get(struct list_head *rb_list)
2030{
2031 struct lpfc_dmabuf *d_buf;
2032
2033 list_remove_head(rb_list, d_buf, struct lpfc_dmabuf, list);
2034 if (!d_buf)
2035 return NULL;
2036 return container_of(d_buf, struct hbq_dmabuf, dbuf);
2037}
2038
2039/**
James Smart2d7dbc42017-02-12 13:52:35 -08002040 * lpfc_sli_rqbuf_get - Remove the first dma buffer off of an RQ list
2041 * @phba: Pointer to HBA context object.
2042 * @hbqno: HBQ number.
2043 *
2044 * This function removes the first RQ buffer on an RQ buffer list and returns a
2045 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
2046 **/
2047static struct rqb_dmabuf *
2048lpfc_sli_rqbuf_get(struct lpfc_hba *phba, struct lpfc_queue *hrq)
2049{
2050 struct lpfc_dmabuf *h_buf;
2051 struct lpfc_rqb *rqbp;
2052
2053 rqbp = hrq->rqbp;
2054 list_remove_head(&rqbp->rqb_buffer_list, h_buf,
2055 struct lpfc_dmabuf, list);
2056 if (!h_buf)
2057 return NULL;
2058 rqbp->buffer_count--;
2059 return container_of(h_buf, struct rqb_dmabuf, hbuf);
2060}
2061
2062/**
James Smart3621a712009-04-06 18:47:14 -04002063 * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag
James Smarte59058c2008-08-24 21:49:00 -04002064 * @phba: Pointer to HBA context object.
2065 * @tag: Tag of the hbq buffer.
2066 *
Sebastian Herbszt71892412016-04-17 13:27:27 +02002067 * This function searches for the hbq buffer associated with the given tag in
2068 * the hbq buffer list. If it finds the hbq buffer, it returns the hbq_buffer
2069 * otherwise it returns NULL.
James Smarte59058c2008-08-24 21:49:00 -04002070 **/
Adrian Bunka6ababd2007-11-05 18:07:33 +01002071static struct hbq_dmabuf *
James Smarted957682007-06-17 19:56:37 -05002072lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag)
2073{
James Smart92d7f7b2007-06-17 19:56:38 -05002074 struct lpfc_dmabuf *d_buf;
2075 struct hbq_dmabuf *hbq_buf;
James Smart51ef4c22007-08-02 11:10:31 -04002076 uint32_t hbqno;
James Smarted957682007-06-17 19:56:37 -05002077
James Smart51ef4c22007-08-02 11:10:31 -04002078 hbqno = tag >> 16;
Jesper Juhla0a74e452007-08-09 20:47:15 +02002079 if (hbqno >= LPFC_MAX_HBQS)
James Smart51ef4c22007-08-02 11:10:31 -04002080 return NULL;
2081
James Smart3772a992009-05-22 14:50:54 -04002082 spin_lock_irq(&phba->hbalock);
James Smart51ef4c22007-08-02 11:10:31 -04002083 list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) {
James Smart92d7f7b2007-06-17 19:56:38 -05002084 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
James Smart51ef4c22007-08-02 11:10:31 -04002085 if (hbq_buf->tag == tag) {
James Smart3772a992009-05-22 14:50:54 -04002086 spin_unlock_irq(&phba->hbalock);
James Smart92d7f7b2007-06-17 19:56:38 -05002087 return hbq_buf;
James Smarted957682007-06-17 19:56:37 -05002088 }
2089 }
James Smart3772a992009-05-22 14:50:54 -04002090 spin_unlock_irq(&phba->hbalock);
James Smart92d7f7b2007-06-17 19:56:38 -05002091 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04002092 "1803 Bad hbq tag. Data: x%x x%x\n",
James Smarta8adb832007-10-27 13:37:53 -04002093 tag, phba->hbqs[tag >> 16].buffer_count);
James Smart92d7f7b2007-06-17 19:56:38 -05002094 return NULL;
James Smarted957682007-06-17 19:56:37 -05002095}
2096
James Smarte59058c2008-08-24 21:49:00 -04002097/**
James Smart3621a712009-04-06 18:47:14 -04002098 * lpfc_sli_free_hbq - Give back the hbq buffer to firmware
James Smarte59058c2008-08-24 21:49:00 -04002099 * @phba: Pointer to HBA context object.
2100 * @hbq_buffer: Pointer to HBQ buffer.
2101 *
2102 * This function is called with hbalock. This function gives back
2103 * the hbq buffer to firmware. If the HBQ does not have space to
2104 * post the buffer, it will free the buffer.
2105 **/
James Smarted957682007-06-17 19:56:37 -05002106void
James Smart51ef4c22007-08-02 11:10:31 -04002107lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer)
James Smarted957682007-06-17 19:56:37 -05002108{
2109 uint32_t hbqno;
2110
James Smart51ef4c22007-08-02 11:10:31 -04002111 if (hbq_buffer) {
2112 hbqno = hbq_buffer->tag >> 16;
James Smart3772a992009-05-22 14:50:54 -04002113 if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer))
James Smart51ef4c22007-08-02 11:10:31 -04002114 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
James Smarted957682007-06-17 19:56:37 -05002115 }
2116}
2117
James Smarte59058c2008-08-24 21:49:00 -04002118/**
James Smart3621a712009-04-06 18:47:14 -04002119 * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox
James Smarte59058c2008-08-24 21:49:00 -04002120 * @mbxCommand: mailbox command code.
2121 *
2122 * This function is called by the mailbox event handler function to verify
2123 * that the completed mailbox command is a legitimate mailbox command. If the
2124 * completed mailbox is not known to the function, it will return MBX_SHUTDOWN
2125 * and the mailbox event handler will take the HBA offline.
2126 **/
dea31012005-04-17 16:05:31 -05002127static int
2128lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
2129{
2130 uint8_t ret;
2131
2132 switch (mbxCommand) {
2133 case MBX_LOAD_SM:
2134 case MBX_READ_NV:
2135 case MBX_WRITE_NV:
James Smarta8adb832007-10-27 13:37:53 -04002136 case MBX_WRITE_VPARMS:
dea31012005-04-17 16:05:31 -05002137 case MBX_RUN_BIU_DIAG:
2138 case MBX_INIT_LINK:
2139 case MBX_DOWN_LINK:
2140 case MBX_CONFIG_LINK:
2141 case MBX_CONFIG_RING:
2142 case MBX_RESET_RING:
2143 case MBX_READ_CONFIG:
2144 case MBX_READ_RCONFIG:
2145 case MBX_READ_SPARM:
2146 case MBX_READ_STATUS:
2147 case MBX_READ_RPI:
2148 case MBX_READ_XRI:
2149 case MBX_READ_REV:
2150 case MBX_READ_LNK_STAT:
2151 case MBX_REG_LOGIN:
2152 case MBX_UNREG_LOGIN:
dea31012005-04-17 16:05:31 -05002153 case MBX_CLEAR_LA:
2154 case MBX_DUMP_MEMORY:
2155 case MBX_DUMP_CONTEXT:
2156 case MBX_RUN_DIAGS:
2157 case MBX_RESTART:
2158 case MBX_UPDATE_CFG:
2159 case MBX_DOWN_LOAD:
2160 case MBX_DEL_LD_ENTRY:
2161 case MBX_RUN_PROGRAM:
2162 case MBX_SET_MASK:
James Smart09372822008-01-11 01:52:54 -05002163 case MBX_SET_VARIABLE:
dea31012005-04-17 16:05:31 -05002164 case MBX_UNREG_D_ID:
Jamie Wellnitz41415862006-02-28 19:25:27 -05002165 case MBX_KILL_BOARD:
dea31012005-04-17 16:05:31 -05002166 case MBX_CONFIG_FARP:
Jamie Wellnitz41415862006-02-28 19:25:27 -05002167 case MBX_BEACON:
dea31012005-04-17 16:05:31 -05002168 case MBX_LOAD_AREA:
2169 case MBX_RUN_BIU_DIAG64:
2170 case MBX_CONFIG_PORT:
2171 case MBX_READ_SPARM64:
2172 case MBX_READ_RPI64:
2173 case MBX_REG_LOGIN64:
James Smart76a95d72010-11-20 23:11:48 -05002174 case MBX_READ_TOPOLOGY:
James Smart09372822008-01-11 01:52:54 -05002175 case MBX_WRITE_WWN:
dea31012005-04-17 16:05:31 -05002176 case MBX_SET_DEBUG:
2177 case MBX_LOAD_EXP_ROM:
James Smart57127f12007-10-27 13:37:05 -04002178 case MBX_ASYNCEVT_ENABLE:
James Smart92d7f7b2007-06-17 19:56:38 -05002179 case MBX_REG_VPI:
2180 case MBX_UNREG_VPI:
James Smart858c9f62007-06-17 19:56:39 -05002181 case MBX_HEARTBEAT:
James Smart84774a42008-08-24 21:50:06 -04002182 case MBX_PORT_CAPABILITIES:
2183 case MBX_PORT_IOV_CONTROL:
James Smart04c68492009-05-22 14:52:52 -04002184 case MBX_SLI4_CONFIG:
2185 case MBX_SLI4_REQ_FTRS:
2186 case MBX_REG_FCFI:
2187 case MBX_UNREG_FCFI:
2188 case MBX_REG_VFI:
2189 case MBX_UNREG_VFI:
2190 case MBX_INIT_VPI:
2191 case MBX_INIT_VFI:
2192 case MBX_RESUME_RPI:
James Smartc7495932010-04-06 15:05:28 -04002193 case MBX_READ_EVENT_LOG_STATUS:
2194 case MBX_READ_EVENT_LOG:
James Smartdcf2a4e2010-09-29 11:18:53 -04002195 case MBX_SECURITY_MGMT:
2196 case MBX_AUTH_PORT:
James Smart940eb682012-08-03 12:37:08 -04002197 case MBX_ACCESS_VDATA:
dea31012005-04-17 16:05:31 -05002198 ret = mbxCommand;
2199 break;
2200 default:
2201 ret = MBX_SHUTDOWN;
2202 break;
2203 }
James Smart2e0fef82007-06-17 19:56:36 -05002204 return ret;
dea31012005-04-17 16:05:31 -05002205}
James Smarte59058c2008-08-24 21:49:00 -04002206
2207/**
James Smart3621a712009-04-06 18:47:14 -04002208 * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler
James Smarte59058c2008-08-24 21:49:00 -04002209 * @phba: Pointer to HBA context object.
2210 * @pmboxq: Pointer to mailbox command.
2211 *
2212 * This is completion handler function for mailbox commands issued from
2213 * lpfc_sli_issue_mbox_wait function. This function is called by the
2214 * mailbox event handler function with no lock held. This function
2215 * will wake up thread waiting on the wait queue pointed by context1
2216 * of the mailbox.
2217 **/
James Smart04c68492009-05-22 14:52:52 -04002218void
James Smart2e0fef82007-06-17 19:56:36 -05002219lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
dea31012005-04-17 16:05:31 -05002220{
2221 wait_queue_head_t *pdone_q;
James Smart858c9f62007-06-17 19:56:39 -05002222 unsigned long drvr_flag;
dea31012005-04-17 16:05:31 -05002223
2224 /*
2225 * If pdone_q is empty, the driver thread gave up waiting and
2226 * continued running.
2227 */
James Smart7054a602007-04-25 09:52:34 -04002228 pmboxq->mbox_flag |= LPFC_MBX_WAKE;
James Smart858c9f62007-06-17 19:56:39 -05002229 spin_lock_irqsave(&phba->hbalock, drvr_flag);
dea31012005-04-17 16:05:31 -05002230 pdone_q = (wait_queue_head_t *) pmboxq->context1;
2231 if (pdone_q)
2232 wake_up_interruptible(pdone_q);
James Smart858c9f62007-06-17 19:56:39 -05002233 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
dea31012005-04-17 16:05:31 -05002234 return;
2235}
2236
James Smarte59058c2008-08-24 21:49:00 -04002237
2238/**
James Smart3621a712009-04-06 18:47:14 -04002239 * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler
James Smarte59058c2008-08-24 21:49:00 -04002240 * @phba: Pointer to HBA context object.
2241 * @pmb: Pointer to mailbox object.
2242 *
2243 * This function is the default mailbox completion handler. It
2244 * frees the memory resources associated with the completed mailbox
2245 * command. If the completed command is a REG_LOGIN mailbox command,
2246 * this function will issue a UREG_LOGIN to re-claim the RPI.
2247 **/
dea31012005-04-17 16:05:31 -05002248void
James Smart2e0fef82007-06-17 19:56:36 -05002249lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea31012005-04-17 16:05:31 -05002250{
James Smartd439d282010-09-29 11:18:45 -04002251 struct lpfc_vport *vport = pmb->vport;
dea31012005-04-17 16:05:31 -05002252 struct lpfc_dmabuf *mp;
James Smartd439d282010-09-29 11:18:45 -04002253 struct lpfc_nodelist *ndlp;
James Smart5af5eee2010-10-22 11:06:38 -04002254 struct Scsi_Host *shost;
James Smart04c68492009-05-22 14:52:52 -04002255 uint16_t rpi, vpi;
James Smart7054a602007-04-25 09:52:34 -04002256 int rc;
2257
dea31012005-04-17 16:05:31 -05002258 mp = (struct lpfc_dmabuf *) (pmb->context1);
James Smart7054a602007-04-25 09:52:34 -04002259
dea31012005-04-17 16:05:31 -05002260 if (mp) {
2261 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2262 kfree(mp);
2263 }
James Smart7054a602007-04-25 09:52:34 -04002264
2265 /*
2266 * If a REG_LOGIN succeeded after node is destroyed or node
2267 * is in re-discovery driver need to cleanup the RPI.
2268 */
James Smart2e0fef82007-06-17 19:56:36 -05002269 if (!(phba->pport->load_flag & FC_UNLOADING) &&
James Smart04c68492009-05-22 14:52:52 -04002270 pmb->u.mb.mbxCommand == MBX_REG_LOGIN64 &&
2271 !pmb->u.mb.mbxStatus) {
2272 rpi = pmb->u.mb.un.varWords[0];
James Smart6d368e52011-05-24 11:44:12 -04002273 vpi = pmb->u.mb.un.varRegLogin.vpi;
James Smart04c68492009-05-22 14:52:52 -04002274 lpfc_unreg_login(phba, vpi, rpi, pmb);
James Smartde96e9c2016-03-31 14:12:27 -07002275 pmb->vport = vport;
James Smart92d7f7b2007-06-17 19:56:38 -05002276 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
James Smart7054a602007-04-25 09:52:34 -04002277 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2278 if (rc != MBX_NOT_FINISHED)
2279 return;
2280 }
2281
James Smart695a8142010-01-26 23:08:03 -05002282 if ((pmb->u.mb.mbxCommand == MBX_REG_VPI) &&
2283 !(phba->pport->load_flag & FC_UNLOADING) &&
2284 !pmb->u.mb.mbxStatus) {
James Smart5af5eee2010-10-22 11:06:38 -04002285 shost = lpfc_shost_from_vport(vport);
2286 spin_lock_irq(shost->host_lock);
2287 vport->vpi_state |= LPFC_VPI_REGISTERED;
2288 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
2289 spin_unlock_irq(shost->host_lock);
James Smart695a8142010-01-26 23:08:03 -05002290 }
2291
James Smartd439d282010-09-29 11:18:45 -04002292 if (pmb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
2293 ndlp = (struct lpfc_nodelist *)pmb->context2;
2294 lpfc_nlp_put(ndlp);
2295 pmb->context2 = NULL;
2296 }
2297
James Smartdcf2a4e2010-09-29 11:18:53 -04002298 /* Check security permission status on INIT_LINK mailbox command */
2299 if ((pmb->u.mb.mbxCommand == MBX_INIT_LINK) &&
2300 (pmb->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION))
2301 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2302 "2860 SLI authentication is required "
2303 "for INIT_LINK but has not done yet\n");
2304
James Smart04c68492009-05-22 14:52:52 -04002305 if (bf_get(lpfc_mqe_command, &pmb->u.mqe) == MBX_SLI4_CONFIG)
2306 lpfc_sli4_mbox_cmd_free(phba, pmb);
2307 else
2308 mempool_free(pmb, phba->mbox_mem_pool);
dea31012005-04-17 16:05:31 -05002309}
James Smartbe6bb942015-04-07 15:07:22 -04002310 /**
2311 * lpfc_sli4_unreg_rpi_cmpl_clr - mailbox completion handler
2312 * @phba: Pointer to HBA context object.
2313 * @pmb: Pointer to mailbox object.
2314 *
2315 * This function is the unreg rpi mailbox completion handler. It
2316 * frees the memory resources associated with the completed mailbox
2317 * command. An additional refrenece is put on the ndlp to prevent
2318 * lpfc_nlp_release from freeing the rpi bit in the bitmask before
2319 * the unreg mailbox command completes, this routine puts the
2320 * reference back.
2321 *
2322 **/
2323void
2324lpfc_sli4_unreg_rpi_cmpl_clr(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2325{
2326 struct lpfc_vport *vport = pmb->vport;
2327 struct lpfc_nodelist *ndlp;
2328
2329 ndlp = pmb->context1;
2330 if (pmb->u.mb.mbxCommand == MBX_UNREG_LOGIN) {
2331 if (phba->sli_rev == LPFC_SLI_REV4 &&
2332 (bf_get(lpfc_sli_intf_if_type,
2333 &phba->sli4_hba.sli_intf) ==
2334 LPFC_SLI_INTF_IF_TYPE_2)) {
2335 if (ndlp) {
2336 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
2337 "0010 UNREG_LOGIN vpi:%x "
2338 "rpi:%x DID:%x map:%x %p\n",
2339 vport->vpi, ndlp->nlp_rpi,
2340 ndlp->nlp_DID,
2341 ndlp->nlp_usg_map, ndlp);
James Smart7c5e5182015-05-22 10:42:43 -04002342 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
James Smartbe6bb942015-04-07 15:07:22 -04002343 lpfc_nlp_put(ndlp);
2344 }
2345 }
2346 }
2347
2348 mempool_free(pmb, phba->mbox_mem_pool);
2349}
dea31012005-04-17 16:05:31 -05002350
James Smarte59058c2008-08-24 21:49:00 -04002351/**
James Smart3621a712009-04-06 18:47:14 -04002352 * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware
James Smarte59058c2008-08-24 21:49:00 -04002353 * @phba: Pointer to HBA context object.
2354 *
2355 * This function is called with no lock held. This function processes all
2356 * the completed mailbox commands and gives it to upper layers. The interrupt
2357 * service routine processes mailbox completion interrupt and adds completed
2358 * mailbox commands to the mboxq_cmpl queue and signals the worker thread.
2359 * Worker thread call lpfc_sli_handle_mb_event, which will return the
2360 * completed mailbox commands in mboxq_cmpl queue to the upper layers. This
2361 * function returns the mailbox commands to the upper layer by calling the
2362 * completion handler function of each mailbox.
2363 **/
dea31012005-04-17 16:05:31 -05002364int
James Smart2e0fef82007-06-17 19:56:36 -05002365lpfc_sli_handle_mb_event(struct lpfc_hba *phba)
dea31012005-04-17 16:05:31 -05002366{
James Smart92d7f7b2007-06-17 19:56:38 -05002367 MAILBOX_t *pmbox;
dea31012005-04-17 16:05:31 -05002368 LPFC_MBOXQ_t *pmb;
James Smart92d7f7b2007-06-17 19:56:38 -05002369 int rc;
2370 LIST_HEAD(cmplq);
dea31012005-04-17 16:05:31 -05002371
2372 phba->sli.slistat.mbox_event++;
2373
James Smart92d7f7b2007-06-17 19:56:38 -05002374 /* Get all completed mailboxe buffers into the cmplq */
2375 spin_lock_irq(&phba->hbalock);
2376 list_splice_init(&phba->sli.mboxq_cmpl, &cmplq);
2377 spin_unlock_irq(&phba->hbalock);
2378
dea31012005-04-17 16:05:31 -05002379 /* Get a Mailbox buffer to setup mailbox commands for callback */
James Smart92d7f7b2007-06-17 19:56:38 -05002380 do {
2381 list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list);
2382 if (pmb == NULL)
2383 break;
2384
James Smart04c68492009-05-22 14:52:52 -04002385 pmbox = &pmb->u.mb;
dea31012005-04-17 16:05:31 -05002386
James Smart858c9f62007-06-17 19:56:39 -05002387 if (pmbox->mbxCommand != MBX_HEARTBEAT) {
2388 if (pmb->vport) {
2389 lpfc_debugfs_disc_trc(pmb->vport,
2390 LPFC_DISC_TRC_MBOX_VPORT,
2391 "MBOX cmpl vport: cmd:x%x mb:x%x x%x",
2392 (uint32_t)pmbox->mbxCommand,
2393 pmbox->un.varWords[0],
2394 pmbox->un.varWords[1]);
2395 }
2396 else {
2397 lpfc_debugfs_disc_trc(phba->pport,
2398 LPFC_DISC_TRC_MBOX,
2399 "MBOX cmpl: cmd:x%x mb:x%x x%x",
2400 (uint32_t)pmbox->mbxCommand,
2401 pmbox->un.varWords[0],
2402 pmbox->un.varWords[1]);
2403 }
2404 }
2405
dea31012005-04-17 16:05:31 -05002406 /*
2407 * It is a fatal error if unknown mbox command completion.
2408 */
2409 if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) ==
2410 MBX_SHUTDOWN) {
André Goddard Rosaaf901ca2009-11-14 13:09:05 -02002411 /* Unknown mailbox command compl */
James Smart92d7f7b2007-06-17 19:56:38 -05002412 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002413 "(%d):0323 Unknown Mailbox command "
James Smarta183a152011-10-10 21:32:43 -04002414 "x%x (x%x/x%x) Cmpl\n",
James Smart92d7f7b2007-06-17 19:56:38 -05002415 pmb->vport ? pmb->vport->vpi : 0,
James Smart04c68492009-05-22 14:52:52 -04002416 pmbox->mbxCommand,
James Smarta183a152011-10-10 21:32:43 -04002417 lpfc_sli_config_mbox_subsys_get(phba,
2418 pmb),
2419 lpfc_sli_config_mbox_opcode_get(phba,
2420 pmb));
James Smart2e0fef82007-06-17 19:56:36 -05002421 phba->link_state = LPFC_HBA_ERROR;
dea31012005-04-17 16:05:31 -05002422 phba->work_hs = HS_FFER3;
2423 lpfc_handle_eratt(phba);
James Smart92d7f7b2007-06-17 19:56:38 -05002424 continue;
dea31012005-04-17 16:05:31 -05002425 }
2426
dea31012005-04-17 16:05:31 -05002427 if (pmbox->mbxStatus) {
2428 phba->sli.slistat.mbox_stat_err++;
2429 if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) {
2430 /* Mbox cmd cmpl error - RETRYing */
James Smart92d7f7b2007-06-17 19:56:38 -05002431 lpfc_printf_log(phba, KERN_INFO,
James Smarta183a152011-10-10 21:32:43 -04002432 LOG_MBOX | LOG_SLI,
2433 "(%d):0305 Mbox cmd cmpl "
2434 "error - RETRYing Data: x%x "
2435 "(x%x/x%x) x%x x%x x%x\n",
2436 pmb->vport ? pmb->vport->vpi : 0,
2437 pmbox->mbxCommand,
2438 lpfc_sli_config_mbox_subsys_get(phba,
2439 pmb),
2440 lpfc_sli_config_mbox_opcode_get(phba,
2441 pmb),
2442 pmbox->mbxStatus,
2443 pmbox->un.varWords[0],
2444 pmb->vport->port_state);
dea31012005-04-17 16:05:31 -05002445 pmbox->mbxStatus = 0;
2446 pmbox->mbxOwner = OWN_HOST;
dea31012005-04-17 16:05:31 -05002447 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
James Smart04c68492009-05-22 14:52:52 -04002448 if (rc != MBX_NOT_FINISHED)
James Smart92d7f7b2007-06-17 19:56:38 -05002449 continue;
dea31012005-04-17 16:05:31 -05002450 }
2451 }
2452
2453 /* Mailbox cmd <cmd> Cmpl <cmpl> */
James Smart92d7f7b2007-06-17 19:56:38 -05002454 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
James Smarta183a152011-10-10 21:32:43 -04002455 "(%d):0307 Mailbox cmd x%x (x%x/x%x) Cmpl x%p "
James Smarte74c03c2013-04-17 20:15:19 -04002456 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
2457 "x%x x%x x%x\n",
James Smart92d7f7b2007-06-17 19:56:38 -05002458 pmb->vport ? pmb->vport->vpi : 0,
dea31012005-04-17 16:05:31 -05002459 pmbox->mbxCommand,
James Smarta183a152011-10-10 21:32:43 -04002460 lpfc_sli_config_mbox_subsys_get(phba, pmb),
2461 lpfc_sli_config_mbox_opcode_get(phba, pmb),
dea31012005-04-17 16:05:31 -05002462 pmb->mbox_cmpl,
2463 *((uint32_t *) pmbox),
2464 pmbox->un.varWords[0],
2465 pmbox->un.varWords[1],
2466 pmbox->un.varWords[2],
2467 pmbox->un.varWords[3],
2468 pmbox->un.varWords[4],
2469 pmbox->un.varWords[5],
2470 pmbox->un.varWords[6],
James Smarte74c03c2013-04-17 20:15:19 -04002471 pmbox->un.varWords[7],
2472 pmbox->un.varWords[8],
2473 pmbox->un.varWords[9],
2474 pmbox->un.varWords[10]);
dea31012005-04-17 16:05:31 -05002475
James Smart92d7f7b2007-06-17 19:56:38 -05002476 if (pmb->mbox_cmpl)
dea31012005-04-17 16:05:31 -05002477 pmb->mbox_cmpl(phba,pmb);
James Smart92d7f7b2007-06-17 19:56:38 -05002478 } while (1);
James Smart2e0fef82007-06-17 19:56:36 -05002479 return 0;
dea31012005-04-17 16:05:31 -05002480}
James Smart92d7f7b2007-06-17 19:56:38 -05002481
James Smarte59058c2008-08-24 21:49:00 -04002482/**
James Smart3621a712009-04-06 18:47:14 -04002483 * lpfc_sli_get_buff - Get the buffer associated with the buffer tag
James Smarte59058c2008-08-24 21:49:00 -04002484 * @phba: Pointer to HBA context object.
2485 * @pring: Pointer to driver SLI ring object.
2486 * @tag: buffer tag.
2487 *
2488 * This function is called with no lock held. When QUE_BUFTAG_BIT bit
2489 * is set in the tag the buffer is posted for a particular exchange,
2490 * the function will return the buffer without replacing the buffer.
2491 * If the buffer is for unsolicited ELS or CT traffic, this function
2492 * returns the buffer and also posts another buffer to the firmware.
2493 **/
James Smart76bb24e2007-10-27 13:38:00 -04002494static struct lpfc_dmabuf *
2495lpfc_sli_get_buff(struct lpfc_hba *phba,
James Smart9f1e1b52008-12-04 22:39:40 -05002496 struct lpfc_sli_ring *pring,
2497 uint32_t tag)
James Smart76bb24e2007-10-27 13:38:00 -04002498{
James Smart9f1e1b52008-12-04 22:39:40 -05002499 struct hbq_dmabuf *hbq_entry;
2500
James Smart76bb24e2007-10-27 13:38:00 -04002501 if (tag & QUE_BUFTAG_BIT)
2502 return lpfc_sli_ring_taggedbuf_get(phba, pring, tag);
James Smart9f1e1b52008-12-04 22:39:40 -05002503 hbq_entry = lpfc_sli_hbqbuf_find(phba, tag);
2504 if (!hbq_entry)
2505 return NULL;
2506 return &hbq_entry->dbuf;
James Smart76bb24e2007-10-27 13:38:00 -04002507}
James Smart57127f12007-10-27 13:37:05 -04002508
James Smart3772a992009-05-22 14:50:54 -04002509/**
2510 * lpfc_complete_unsol_iocb - Complete an unsolicited sequence
2511 * @phba: Pointer to HBA context object.
2512 * @pring: Pointer to driver SLI ring object.
2513 * @saveq: Pointer to the iocbq struct representing the sequence starting frame.
2514 * @fch_r_ctl: the r_ctl for the first frame of the sequence.
2515 * @fch_type: the type for the first frame of the sequence.
2516 *
2517 * This function is called with no lock held. This function uses the r_ctl and
2518 * type of the received sequence to find the correct callback function to call
2519 * to process the sequence.
2520 **/
2521static int
2522lpfc_complete_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2523 struct lpfc_iocbq *saveq, uint32_t fch_r_ctl,
2524 uint32_t fch_type)
2525{
2526 int i;
2527
James Smartf358dd02017-02-12 13:52:34 -08002528 switch (fch_type) {
2529 case FC_TYPE_NVME:
James Smartd613b6a2017-02-12 13:52:37 -08002530 lpfc_nvmet_unsol_ls_event(phba, pring, saveq);
James Smartf358dd02017-02-12 13:52:34 -08002531 return 1;
2532 default:
2533 break;
2534 }
2535
James Smart3772a992009-05-22 14:50:54 -04002536 /* unSolicited Responses */
2537 if (pring->prt[0].profile) {
2538 if (pring->prt[0].lpfc_sli_rcv_unsol_event)
2539 (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring,
2540 saveq);
2541 return 1;
2542 }
2543 /* We must search, based on rctl / type
2544 for the right routine */
2545 for (i = 0; i < pring->num_mask; i++) {
2546 if ((pring->prt[i].rctl == fch_r_ctl) &&
2547 (pring->prt[i].type == fch_type)) {
2548 if (pring->prt[i].lpfc_sli_rcv_unsol_event)
2549 (pring->prt[i].lpfc_sli_rcv_unsol_event)
2550 (phba, pring, saveq);
2551 return 1;
2552 }
2553 }
2554 return 0;
2555}
James Smarte59058c2008-08-24 21:49:00 -04002556
2557/**
James Smart3621a712009-04-06 18:47:14 -04002558 * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler
James Smarte59058c2008-08-24 21:49:00 -04002559 * @phba: Pointer to HBA context object.
2560 * @pring: Pointer to driver SLI ring object.
2561 * @saveq: Pointer to the unsolicited iocb.
2562 *
2563 * This function is called with no lock held by the ring event handler
2564 * when there is an unsolicited iocb posted to the response ring by the
2565 * firmware. This function gets the buffer associated with the iocbs
2566 * and calls the event handler for the ring. This function handles both
2567 * qring buffers and hbq buffers.
2568 * When the function returns 1 the caller can free the iocb object otherwise
2569 * upper layer functions will free the iocb objects.
2570 **/
dea31012005-04-17 16:05:31 -05002571static int
2572lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2573 struct lpfc_iocbq *saveq)
2574{
2575 IOCB_t * irsp;
2576 WORD5 * w5p;
2577 uint32_t Rctl, Type;
James Smart76bb24e2007-10-27 13:38:00 -04002578 struct lpfc_iocbq *iocbq;
James Smart3163f722008-02-08 18:50:25 -05002579 struct lpfc_dmabuf *dmzbuf;
dea31012005-04-17 16:05:31 -05002580
dea31012005-04-17 16:05:31 -05002581 irsp = &(saveq->iocb);
James Smart57127f12007-10-27 13:37:05 -04002582
2583 if (irsp->ulpCommand == CMD_ASYNC_STATUS) {
2584 if (pring->lpfc_sli_rcv_async_status)
2585 pring->lpfc_sli_rcv_async_status(phba, pring, saveq);
2586 else
2587 lpfc_printf_log(phba,
2588 KERN_WARNING,
2589 LOG_SLI,
2590 "0316 Ring %d handler: unexpected "
2591 "ASYNC_STATUS iocb received evt_code "
2592 "0x%x\n",
2593 pring->ringno,
2594 irsp->un.asyncstat.evt_code);
2595 return 1;
2596 }
2597
James Smart3163f722008-02-08 18:50:25 -05002598 if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) &&
2599 (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) {
2600 if (irsp->ulpBdeCount > 0) {
2601 dmzbuf = lpfc_sli_get_buff(phba, pring,
2602 irsp->un.ulpWord[3]);
2603 lpfc_in_buf_free(phba, dmzbuf);
2604 }
2605
2606 if (irsp->ulpBdeCount > 1) {
2607 dmzbuf = lpfc_sli_get_buff(phba, pring,
2608 irsp->unsli3.sli3Words[3]);
2609 lpfc_in_buf_free(phba, dmzbuf);
2610 }
2611
2612 if (irsp->ulpBdeCount > 2) {
2613 dmzbuf = lpfc_sli_get_buff(phba, pring,
2614 irsp->unsli3.sli3Words[7]);
2615 lpfc_in_buf_free(phba, dmzbuf);
2616 }
2617
2618 return 1;
2619 }
2620
James Smart92d7f7b2007-06-17 19:56:38 -05002621 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
James Smart76bb24e2007-10-27 13:38:00 -04002622 if (irsp->ulpBdeCount != 0) {
2623 saveq->context2 = lpfc_sli_get_buff(phba, pring,
James Smart92d7f7b2007-06-17 19:56:38 -05002624 irsp->un.ulpWord[3]);
James Smart76bb24e2007-10-27 13:38:00 -04002625 if (!saveq->context2)
2626 lpfc_printf_log(phba,
2627 KERN_ERR,
2628 LOG_SLI,
2629 "0341 Ring %d Cannot find buffer for "
2630 "an unsolicited iocb. tag 0x%x\n",
2631 pring->ringno,
2632 irsp->un.ulpWord[3]);
James Smart76bb24e2007-10-27 13:38:00 -04002633 }
2634 if (irsp->ulpBdeCount == 2) {
2635 saveq->context3 = lpfc_sli_get_buff(phba, pring,
James Smart51ef4c22007-08-02 11:10:31 -04002636 irsp->unsli3.sli3Words[7]);
James Smart76bb24e2007-10-27 13:38:00 -04002637 if (!saveq->context3)
2638 lpfc_printf_log(phba,
2639 KERN_ERR,
2640 LOG_SLI,
2641 "0342 Ring %d Cannot find buffer for an"
2642 " unsolicited iocb. tag 0x%x\n",
2643 pring->ringno,
2644 irsp->unsli3.sli3Words[7]);
2645 }
2646 list_for_each_entry(iocbq, &saveq->list, list) {
James Smart76bb24e2007-10-27 13:38:00 -04002647 irsp = &(iocbq->iocb);
James Smart76bb24e2007-10-27 13:38:00 -04002648 if (irsp->ulpBdeCount != 0) {
2649 iocbq->context2 = lpfc_sli_get_buff(phba, pring,
2650 irsp->un.ulpWord[3]);
James Smart9c2face2008-01-11 01:53:18 -05002651 if (!iocbq->context2)
James Smart76bb24e2007-10-27 13:38:00 -04002652 lpfc_printf_log(phba,
2653 KERN_ERR,
2654 LOG_SLI,
2655 "0343 Ring %d Cannot find "
2656 "buffer for an unsolicited iocb"
2657 ". tag 0x%x\n", pring->ringno,
2658 irsp->un.ulpWord[3]);
2659 }
2660 if (irsp->ulpBdeCount == 2) {
2661 iocbq->context3 = lpfc_sli_get_buff(phba, pring,
2662 irsp->unsli3.sli3Words[7]);
James Smart9c2face2008-01-11 01:53:18 -05002663 if (!iocbq->context3)
James Smart76bb24e2007-10-27 13:38:00 -04002664 lpfc_printf_log(phba,
2665 KERN_ERR,
2666 LOG_SLI,
2667 "0344 Ring %d Cannot find "
2668 "buffer for an unsolicited "
2669 "iocb. tag 0x%x\n",
2670 pring->ringno,
2671 irsp->unsli3.sli3Words[7]);
2672 }
2673 }
James Smart92d7f7b2007-06-17 19:56:38 -05002674 }
James Smart9c2face2008-01-11 01:53:18 -05002675 if (irsp->ulpBdeCount != 0 &&
2676 (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX ||
2677 irsp->ulpStatus == IOSTAT_INTERMED_RSP)) {
2678 int found = 0;
2679
2680 /* search continue save q for same XRI */
2681 list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) {
James Smart7851fe22011-07-22 18:36:52 -04002682 if (iocbq->iocb.unsli3.rcvsli3.ox_id ==
2683 saveq->iocb.unsli3.rcvsli3.ox_id) {
James Smart9c2face2008-01-11 01:53:18 -05002684 list_add_tail(&saveq->list, &iocbq->list);
2685 found = 1;
2686 break;
2687 }
2688 }
2689 if (!found)
2690 list_add_tail(&saveq->clist,
2691 &pring->iocb_continue_saveq);
2692 if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) {
2693 list_del_init(&iocbq->clist);
2694 saveq = iocbq;
2695 irsp = &(saveq->iocb);
2696 } else
2697 return 0;
2698 }
2699 if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) ||
2700 (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) ||
2701 (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) {
James Smart6a9c52c2009-10-02 15:16:51 -04002702 Rctl = FC_RCTL_ELS_REQ;
2703 Type = FC_TYPE_ELS;
James Smart9c2face2008-01-11 01:53:18 -05002704 } else {
2705 w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]);
2706 Rctl = w5p->hcsw.Rctl;
2707 Type = w5p->hcsw.Type;
2708
2709 /* Firmware Workaround */
2710 if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) &&
2711 (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX ||
2712 irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
James Smart6a9c52c2009-10-02 15:16:51 -04002713 Rctl = FC_RCTL_ELS_REQ;
2714 Type = FC_TYPE_ELS;
James Smart9c2face2008-01-11 01:53:18 -05002715 w5p->hcsw.Rctl = Rctl;
2716 w5p->hcsw.Type = Type;
2717 }
2718 }
James Smart92d7f7b2007-06-17 19:56:38 -05002719
James Smart3772a992009-05-22 14:50:54 -04002720 if (!lpfc_complete_unsol_iocb(phba, pring, saveq, Rctl, Type))
James Smart92d7f7b2007-06-17 19:56:38 -05002721 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002722 "0313 Ring %d handler: unexpected Rctl x%x "
James Smart92d7f7b2007-06-17 19:56:38 -05002723 "Type x%x received\n",
James Smarte8b62012007-08-02 11:10:09 -04002724 pring->ringno, Rctl, Type);
James Smart3772a992009-05-22 14:50:54 -04002725
James Smart92d7f7b2007-06-17 19:56:38 -05002726 return 1;
dea31012005-04-17 16:05:31 -05002727}
2728
James Smarte59058c2008-08-24 21:49:00 -04002729/**
James Smart3621a712009-04-06 18:47:14 -04002730 * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb
James Smarte59058c2008-08-24 21:49:00 -04002731 * @phba: Pointer to HBA context object.
2732 * @pring: Pointer to driver SLI ring object.
2733 * @prspiocb: Pointer to response iocb object.
2734 *
2735 * This function looks up the iocb_lookup table to get the command iocb
2736 * corresponding to the given response iocb using the iotag of the
2737 * response iocb. This function is called with the hbalock held.
2738 * This function returns the command iocb object if it finds the command
2739 * iocb else returns NULL.
2740 **/
dea31012005-04-17 16:05:31 -05002741static struct lpfc_iocbq *
James Smart2e0fef82007-06-17 19:56:36 -05002742lpfc_sli_iocbq_lookup(struct lpfc_hba *phba,
2743 struct lpfc_sli_ring *pring,
2744 struct lpfc_iocbq *prspiocb)
dea31012005-04-17 16:05:31 -05002745{
dea31012005-04-17 16:05:31 -05002746 struct lpfc_iocbq *cmd_iocb = NULL;
2747 uint16_t iotag;
Johannes Thumshirn1c2ba472016-01-20 16:22:22 +01002748 lockdep_assert_held(&phba->hbalock);
dea31012005-04-17 16:05:31 -05002749
James Bottomley604a3e32005-10-29 10:28:33 -05002750 iotag = prspiocb->iocb.ulpIoTag;
dea31012005-04-17 16:05:31 -05002751
James Bottomley604a3e32005-10-29 10:28:33 -05002752 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2753 cmd_iocb = phba->sli.iocbq_lookup[iotag];
James Smart4f2e66c2012-05-09 21:17:07 -04002754 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
James Smart89533e92016-10-13 15:06:15 -07002755 /* remove from txcmpl queue list */
2756 list_del_init(&cmd_iocb->list);
James Smart4f2e66c2012-05-09 21:17:07 -04002757 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
James Smart89533e92016-10-13 15:06:15 -07002758 return cmd_iocb;
James Smart2a9bf3d2010-06-07 15:24:45 -04002759 }
dea31012005-04-17 16:05:31 -05002760 }
2761
dea31012005-04-17 16:05:31 -05002762 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smart89533e92016-10-13 15:06:15 -07002763 "0317 iotag x%x is out of "
James Bottomley604a3e32005-10-29 10:28:33 -05002764 "range: max iotag x%x wd0 x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04002765 iotag, phba->sli.last_iotag,
James Bottomley604a3e32005-10-29 10:28:33 -05002766 *(((uint32_t *) &prspiocb->iocb) + 7));
dea31012005-04-17 16:05:31 -05002767 return NULL;
2768}
2769
James Smarte59058c2008-08-24 21:49:00 -04002770/**
James Smart3772a992009-05-22 14:50:54 -04002771 * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag
2772 * @phba: Pointer to HBA context object.
2773 * @pring: Pointer to driver SLI ring object.
2774 * @iotag: IOCB tag.
2775 *
2776 * This function looks up the iocb_lookup table to get the command iocb
2777 * corresponding to the given iotag. This function is called with the
2778 * hbalock held.
2779 * This function returns the command iocb object if it finds the command
2780 * iocb else returns NULL.
2781 **/
2782static struct lpfc_iocbq *
2783lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba,
2784 struct lpfc_sli_ring *pring, uint16_t iotag)
2785{
James Smart895427b2017-02-12 13:52:30 -08002786 struct lpfc_iocbq *cmd_iocb = NULL;
James Smart3772a992009-05-22 14:50:54 -04002787
Johannes Thumshirn1c2ba472016-01-20 16:22:22 +01002788 lockdep_assert_held(&phba->hbalock);
James Smart3772a992009-05-22 14:50:54 -04002789 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2790 cmd_iocb = phba->sli.iocbq_lookup[iotag];
James Smart4f2e66c2012-05-09 21:17:07 -04002791 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
2792 /* remove from txcmpl queue list */
2793 list_del_init(&cmd_iocb->list);
2794 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
James Smart4f2e66c2012-05-09 21:17:07 -04002795 return cmd_iocb;
James Smart2a9bf3d2010-06-07 15:24:45 -04002796 }
James Smart3772a992009-05-22 14:50:54 -04002797 }
James Smart89533e92016-10-13 15:06:15 -07002798
James Smart3772a992009-05-22 14:50:54 -04002799 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smart895427b2017-02-12 13:52:30 -08002800 "0372 iotag x%x lookup error: max iotag (x%x) "
2801 "iocb_flag x%x\n",
2802 iotag, phba->sli.last_iotag,
2803 cmd_iocb ? cmd_iocb->iocb_flag : 0xffff);
James Smart3772a992009-05-22 14:50:54 -04002804 return NULL;
2805}
2806
2807/**
James Smart3621a712009-04-06 18:47:14 -04002808 * lpfc_sli_process_sol_iocb - process solicited iocb completion
James Smarte59058c2008-08-24 21:49:00 -04002809 * @phba: Pointer to HBA context object.
2810 * @pring: Pointer to driver SLI ring object.
2811 * @saveq: Pointer to the response iocb to be processed.
2812 *
2813 * This function is called by the ring event handler for non-fcp
2814 * rings when there is a new response iocb in the response ring.
2815 * The caller is not required to hold any locks. This function
2816 * gets the command iocb associated with the response iocb and
2817 * calls the completion handler for the command iocb. If there
2818 * is no completion handler, the function will free the resources
2819 * associated with command iocb. If the response iocb is for
2820 * an already aborted command iocb, the status of the completion
2821 * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
2822 * This function always returns 1.
2823 **/
dea31012005-04-17 16:05:31 -05002824static int
James Smart2e0fef82007-06-17 19:56:36 -05002825lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
dea31012005-04-17 16:05:31 -05002826 struct lpfc_iocbq *saveq)
2827{
James Smart2e0fef82007-06-17 19:56:36 -05002828 struct lpfc_iocbq *cmdiocbp;
dea31012005-04-17 16:05:31 -05002829 int rc = 1;
2830 unsigned long iflag;
2831
2832 /* Based on the iotag field, get the cmd IOCB from the txcmplq */
James Smart2e0fef82007-06-17 19:56:36 -05002833 spin_lock_irqsave(&phba->hbalock, iflag);
James Bottomley604a3e32005-10-29 10:28:33 -05002834 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq);
James Smart2e0fef82007-06-17 19:56:36 -05002835 spin_unlock_irqrestore(&phba->hbalock, iflag);
2836
dea31012005-04-17 16:05:31 -05002837 if (cmdiocbp) {
2838 if (cmdiocbp->iocb_cmpl) {
2839 /*
James Smartea2151b2008-09-07 11:52:10 -04002840 * If an ELS command failed send an event to mgmt
2841 * application.
2842 */
2843 if (saveq->iocb.ulpStatus &&
2844 (pring->ringno == LPFC_ELS_RING) &&
2845 (cmdiocbp->iocb.ulpCommand ==
2846 CMD_ELS_REQUEST64_CR))
2847 lpfc_send_els_failure_event(phba,
2848 cmdiocbp, saveq);
2849
2850 /*
dea31012005-04-17 16:05:31 -05002851 * Post all ELS completions to the worker thread.
2852 * All other are passed to the completion callback.
2853 */
2854 if (pring->ringno == LPFC_ELS_RING) {
James Smart341af102010-01-26 23:07:37 -05002855 if ((phba->sli_rev < LPFC_SLI_REV4) &&
2856 (cmdiocbp->iocb_flag &
2857 LPFC_DRIVER_ABORTED)) {
2858 spin_lock_irqsave(&phba->hbalock,
2859 iflag);
James Smart07951072007-04-25 09:51:38 -04002860 cmdiocbp->iocb_flag &=
2861 ~LPFC_DRIVER_ABORTED;
James Smart341af102010-01-26 23:07:37 -05002862 spin_unlock_irqrestore(&phba->hbalock,
2863 iflag);
James Smart07951072007-04-25 09:51:38 -04002864 saveq->iocb.ulpStatus =
2865 IOSTAT_LOCAL_REJECT;
2866 saveq->iocb.un.ulpWord[4] =
2867 IOERR_SLI_ABORTED;
James Smart0ff10d42008-01-11 01:52:36 -05002868
2869 /* Firmware could still be in progress
2870 * of DMAing payload, so don't free data
2871 * buffer till after a hbeat.
2872 */
James Smart341af102010-01-26 23:07:37 -05002873 spin_lock_irqsave(&phba->hbalock,
2874 iflag);
James Smart0ff10d42008-01-11 01:52:36 -05002875 saveq->iocb_flag |= LPFC_DELAY_MEM_FREE;
James Smart341af102010-01-26 23:07:37 -05002876 spin_unlock_irqrestore(&phba->hbalock,
2877 iflag);
2878 }
James Smart0f65ff62010-02-26 14:14:23 -05002879 if (phba->sli_rev == LPFC_SLI_REV4) {
2880 if (saveq->iocb_flag &
2881 LPFC_EXCHANGE_BUSY) {
2882 /* Set cmdiocb flag for the
2883 * exchange busy so sgl (xri)
2884 * will not be released until
2885 * the abort xri is received
2886 * from hba.
2887 */
2888 spin_lock_irqsave(
2889 &phba->hbalock, iflag);
2890 cmdiocbp->iocb_flag |=
2891 LPFC_EXCHANGE_BUSY;
2892 spin_unlock_irqrestore(
2893 &phba->hbalock, iflag);
2894 }
2895 if (cmdiocbp->iocb_flag &
2896 LPFC_DRIVER_ABORTED) {
2897 /*
2898 * Clear LPFC_DRIVER_ABORTED
2899 * bit in case it was driver
2900 * initiated abort.
2901 */
2902 spin_lock_irqsave(
2903 &phba->hbalock, iflag);
2904 cmdiocbp->iocb_flag &=
2905 ~LPFC_DRIVER_ABORTED;
2906 spin_unlock_irqrestore(
2907 &phba->hbalock, iflag);
2908 cmdiocbp->iocb.ulpStatus =
2909 IOSTAT_LOCAL_REJECT;
2910 cmdiocbp->iocb.un.ulpWord[4] =
2911 IOERR_ABORT_REQUESTED;
2912 /*
2913 * For SLI4, irsiocb contains
2914 * NO_XRI in sli_xritag, it
2915 * shall not affect releasing
2916 * sgl (xri) process.
2917 */
2918 saveq->iocb.ulpStatus =
2919 IOSTAT_LOCAL_REJECT;
2920 saveq->iocb.un.ulpWord[4] =
2921 IOERR_SLI_ABORTED;
2922 spin_lock_irqsave(
2923 &phba->hbalock, iflag);
2924 saveq->iocb_flag |=
2925 LPFC_DELAY_MEM_FREE;
2926 spin_unlock_irqrestore(
2927 &phba->hbalock, iflag);
2928 }
James Smart07951072007-04-25 09:51:38 -04002929 }
dea31012005-04-17 16:05:31 -05002930 }
James Smart2e0fef82007-06-17 19:56:36 -05002931 (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
James Bottomley604a3e32005-10-29 10:28:33 -05002932 } else
2933 lpfc_sli_release_iocbq(phba, cmdiocbp);
dea31012005-04-17 16:05:31 -05002934 } else {
2935 /*
2936 * Unknown initiating command based on the response iotag.
2937 * This could be the case on the ELS ring because of
2938 * lpfc_els_abort().
2939 */
2940 if (pring->ringno != LPFC_ELS_RING) {
2941 /*
2942 * Ring <ringno> handler: unexpected completion IoTag
2943 * <IoTag>
2944 */
James Smarta257bf92009-04-06 18:48:10 -04002945 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002946 "0322 Ring %d handler: "
2947 "unexpected completion IoTag x%x "
2948 "Data: x%x x%x x%x x%x\n",
2949 pring->ringno,
2950 saveq->iocb.ulpIoTag,
2951 saveq->iocb.ulpStatus,
2952 saveq->iocb.un.ulpWord[4],
2953 saveq->iocb.ulpCommand,
2954 saveq->iocb.ulpContext);
dea31012005-04-17 16:05:31 -05002955 }
2956 }
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04002957
dea31012005-04-17 16:05:31 -05002958 return rc;
2959}
2960
James Smarte59058c2008-08-24 21:49:00 -04002961/**
James Smart3621a712009-04-06 18:47:14 -04002962 * lpfc_sli_rsp_pointers_error - Response ring pointer error handler
James Smarte59058c2008-08-24 21:49:00 -04002963 * @phba: Pointer to HBA context object.
2964 * @pring: Pointer to driver SLI ring object.
2965 *
2966 * This function is called from the iocb ring event handlers when
2967 * put pointer is ahead of the get pointer for a ring. This function signal
2968 * an error attention condition to the worker thread and the worker
2969 * thread will transition the HBA to offline state.
2970 **/
James Smart2e0fef82007-06-17 19:56:36 -05002971static void
2972lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002973{
James Smart34b02dc2008-08-24 21:49:55 -04002974 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002975 /*
Frederik Schwarzer025dfda2008-10-16 19:02:37 +02002976 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002977 * rsp ring <portRspMax>
2978 */
2979 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002980 "0312 Ring %d handler: portRspPut %d "
Frederik Schwarzer025dfda2008-10-16 19:02:37 +02002981 "is bigger than rsp ring %d\n",
James Smarte8b62012007-08-02 11:10:09 -04002982 pring->ringno, le32_to_cpu(pgp->rspPutInx),
James Smart7e56aa22012-08-03 12:35:34 -04002983 pring->sli.sli3.numRiocb);
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002984
James Smart2e0fef82007-06-17 19:56:36 -05002985 phba->link_state = LPFC_HBA_ERROR;
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002986
2987 /*
2988 * All error attention handlers are posted to
2989 * worker thread
2990 */
2991 phba->work_ha |= HA_ERATT;
2992 phba->work_hs = HS_FFER3;
James Smart92d7f7b2007-06-17 19:56:38 -05002993
James Smart5e9d9b82008-06-14 22:52:53 -04002994 lpfc_worker_wake_up(phba);
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002995
2996 return;
2997}
2998
James Smarte59058c2008-08-24 21:49:00 -04002999/**
James Smart3621a712009-04-06 18:47:14 -04003000 * lpfc_poll_eratt - Error attention polling timer timeout handler
James Smart93996272008-08-24 21:50:30 -04003001 * @ptr: Pointer to address of HBA context object.
3002 *
3003 * This function is invoked by the Error Attention polling timer when the
3004 * timer times out. It will check the SLI Error Attention register for
3005 * possible attention events. If so, it will post an Error Attention event
3006 * and wake up worker thread to process it. Otherwise, it will set up the
3007 * Error Attention polling timer for the next poll.
3008 **/
3009void lpfc_poll_eratt(unsigned long ptr)
3010{
3011 struct lpfc_hba *phba;
James Smarteb016562014-09-03 12:58:06 -04003012 uint32_t eratt = 0;
James Smartaa6fbb72012-08-03 12:36:03 -04003013 uint64_t sli_intr, cnt;
James Smart93996272008-08-24 21:50:30 -04003014
3015 phba = (struct lpfc_hba *)ptr;
3016
James Smartaa6fbb72012-08-03 12:36:03 -04003017 /* Here we will also keep track of interrupts per sec of the hba */
3018 sli_intr = phba->sli.slistat.sli_intr;
3019
3020 if (phba->sli.slistat.sli_prev_intr > sli_intr)
3021 cnt = (((uint64_t)(-1) - phba->sli.slistat.sli_prev_intr) +
3022 sli_intr);
3023 else
3024 cnt = (sli_intr - phba->sli.slistat.sli_prev_intr);
3025
James Smart65791f12016-07-06 12:35:56 -07003026 /* 64-bit integer division not supported on 32-bit x86 - use do_div */
3027 do_div(cnt, phba->eratt_poll_interval);
James Smartaa6fbb72012-08-03 12:36:03 -04003028 phba->sli.slistat.sli_ips = cnt;
3029
3030 phba->sli.slistat.sli_prev_intr = sli_intr;
3031
James Smart93996272008-08-24 21:50:30 -04003032 /* Check chip HA register for error event */
3033 eratt = lpfc_sli_check_eratt(phba);
3034
3035 if (eratt)
3036 /* Tell the worker thread there is work to do */
3037 lpfc_worker_wake_up(phba);
3038 else
3039 /* Restart the timer for next eratt poll */
James Smart256ec0d2013-04-17 20:14:58 -04003040 mod_timer(&phba->eratt_poll,
3041 jiffies +
James Smart65791f12016-07-06 12:35:56 -07003042 msecs_to_jiffies(1000 * phba->eratt_poll_interval));
James Smart93996272008-08-24 21:50:30 -04003043 return;
3044}
3045
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05003046
James Smarte59058c2008-08-24 21:49:00 -04003047/**
James Smart3621a712009-04-06 18:47:14 -04003048 * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring
James Smarte59058c2008-08-24 21:49:00 -04003049 * @phba: Pointer to HBA context object.
3050 * @pring: Pointer to driver SLI ring object.
3051 * @mask: Host attention register mask for this ring.
3052 *
3053 * This function is called from the interrupt context when there is a ring
3054 * event for the fcp ring. The caller does not hold any lock.
3055 * The function processes each response iocb in the response ring until it
Lucas De Marchi25985ed2011-03-30 22:57:33 -03003056 * finds an iocb with LE bit set and chains all the iocbs up to the iocb with
James Smarte59058c2008-08-24 21:49:00 -04003057 * LE bit set. The function will call the completion handler of the command iocb
3058 * if the response iocb indicates a completion for a command iocb or it is
3059 * an abort completion. The function will call lpfc_sli_process_unsol_iocb
3060 * function if this is an unsolicited iocb.
dea31012005-04-17 16:05:31 -05003061 * This routine presumes LPFC_FCP_RING handling and doesn't bother
James Smart45ed1192009-10-02 15:17:02 -04003062 * to check it explicitly.
3063 */
3064int
James Smart2e0fef82007-06-17 19:56:36 -05003065lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
3066 struct lpfc_sli_ring *pring, uint32_t mask)
dea31012005-04-17 16:05:31 -05003067{
James Smart34b02dc2008-08-24 21:49:55 -04003068 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
dea31012005-04-17 16:05:31 -05003069 IOCB_t *irsp = NULL;
James.Smart@Emulex.Com87f6eaf2005-06-25 10:34:13 -04003070 IOCB_t *entry = NULL;
dea31012005-04-17 16:05:31 -05003071 struct lpfc_iocbq *cmdiocbq = NULL;
3072 struct lpfc_iocbq rspiocbq;
dea31012005-04-17 16:05:31 -05003073 uint32_t status;
3074 uint32_t portRspPut, portRspMax;
3075 int rc = 1;
3076 lpfc_iocb_type type;
3077 unsigned long iflag;
3078 uint32_t rsp_cmpl = 0;
dea31012005-04-17 16:05:31 -05003079
James Smart2e0fef82007-06-17 19:56:36 -05003080 spin_lock_irqsave(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05003081 pring->stats.iocb_event++;
3082
dea31012005-04-17 16:05:31 -05003083 /*
3084 * The next available response entry should never exceed the maximum
3085 * entries. If it does, treat it as an adapter hardware error.
3086 */
James Smart7e56aa22012-08-03 12:35:34 -04003087 portRspMax = pring->sli.sli3.numRiocb;
dea31012005-04-17 16:05:31 -05003088 portRspPut = le32_to_cpu(pgp->rspPutInx);
3089 if (unlikely(portRspPut >= portRspMax)) {
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05003090 lpfc_sli_rsp_pointers_error(phba, pring);
James Smart2e0fef82007-06-17 19:56:36 -05003091 spin_unlock_irqrestore(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05003092 return 1;
3093 }
James Smart45ed1192009-10-02 15:17:02 -04003094 if (phba->fcp_ring_in_use) {
3095 spin_unlock_irqrestore(&phba->hbalock, iflag);
3096 return 1;
3097 } else
3098 phba->fcp_ring_in_use = 1;
dea31012005-04-17 16:05:31 -05003099
3100 rmb();
James Smart7e56aa22012-08-03 12:35:34 -04003101 while (pring->sli.sli3.rspidx != portRspPut) {
James.Smart@Emulex.Com87f6eaf2005-06-25 10:34:13 -04003102 /*
3103 * Fetch an entry off the ring and copy it into a local data
3104 * structure. The copy involves a byte-swap since the
3105 * network byte order and pci byte orders are different.
3106 */
James Smarted957682007-06-17 19:56:37 -05003107 entry = lpfc_resp_iocb(phba, pring);
James Smart858c9f62007-06-17 19:56:39 -05003108 phba->last_completion_time = jiffies;
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05003109
James Smart7e56aa22012-08-03 12:35:34 -04003110 if (++pring->sli.sli3.rspidx >= portRspMax)
3111 pring->sli.sli3.rspidx = 0;
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05003112
James.Smart@Emulex.Com87f6eaf2005-06-25 10:34:13 -04003113 lpfc_sli_pcimem_bcopy((uint32_t *) entry,
3114 (uint32_t *) &rspiocbq.iocb,
James Smarted957682007-06-17 19:56:37 -05003115 phba->iocb_rsp_size);
James Smarta4bc3372006-12-02 13:34:16 -05003116 INIT_LIST_HEAD(&(rspiocbq.list));
James.Smart@Emulex.Com87f6eaf2005-06-25 10:34:13 -04003117 irsp = &rspiocbq.iocb;
3118
dea31012005-04-17 16:05:31 -05003119 type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
3120 pring->stats.iocb_rsp++;
3121 rsp_cmpl++;
3122
3123 if (unlikely(irsp->ulpStatus)) {
James Smart92d7f7b2007-06-17 19:56:38 -05003124 /*
3125 * If resource errors reported from HBA, reduce
3126 * queuedepths of the SCSI device.
3127 */
3128 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
James Smarte3d2b802012-08-14 14:25:43 -04003129 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
3130 IOERR_NO_RESOURCES)) {
James Smart92d7f7b2007-06-17 19:56:38 -05003131 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart3772a992009-05-22 14:50:54 -04003132 phba->lpfc_rampdown_queue_depth(phba);
James Smart92d7f7b2007-06-17 19:56:38 -05003133 spin_lock_irqsave(&phba->hbalock, iflag);
3134 }
3135
dea31012005-04-17 16:05:31 -05003136 /* Rsp ring <ringno> error: IOCB */
3137 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04003138 "0336 Rsp Ring %d error: IOCB Data: "
James Smart92d7f7b2007-06-17 19:56:38 -05003139 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04003140 pring->ringno,
James Smart92d7f7b2007-06-17 19:56:38 -05003141 irsp->un.ulpWord[0],
3142 irsp->un.ulpWord[1],
3143 irsp->un.ulpWord[2],
3144 irsp->un.ulpWord[3],
3145 irsp->un.ulpWord[4],
3146 irsp->un.ulpWord[5],
James Smartd7c255b2008-08-24 21:50:00 -04003147 *(uint32_t *)&irsp->un1,
3148 *((uint32_t *)&irsp->un1 + 1));
dea31012005-04-17 16:05:31 -05003149 }
3150
3151 switch (type) {
3152 case LPFC_ABORT_IOCB:
3153 case LPFC_SOL_IOCB:
3154 /*
3155 * Idle exchange closed via ABTS from port. No iocb
3156 * resources need to be recovered.
3157 */
3158 if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
James Smartdca94792006-08-01 07:34:08 -04003159 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04003160 "0333 IOCB cmd 0x%x"
James Smartdca94792006-08-01 07:34:08 -04003161 " processed. Skipping"
James Smart92d7f7b2007-06-17 19:56:38 -05003162 " completion\n",
James Smartdca94792006-08-01 07:34:08 -04003163 irsp->ulpCommand);
dea31012005-04-17 16:05:31 -05003164 break;
3165 }
3166
James Bottomley604a3e32005-10-29 10:28:33 -05003167 cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
3168 &rspiocbq);
James Smart0f65ff62010-02-26 14:14:23 -05003169 if (unlikely(!cmdiocbq))
3170 break;
3171 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED)
3172 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
3173 if (cmdiocbq->iocb_cmpl) {
3174 spin_unlock_irqrestore(&phba->hbalock, iflag);
3175 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
3176 &rspiocbq);
3177 spin_lock_irqsave(&phba->hbalock, iflag);
3178 }
dea31012005-04-17 16:05:31 -05003179 break;
James Smarta4bc3372006-12-02 13:34:16 -05003180 case LPFC_UNSOL_IOCB:
James Smart2e0fef82007-06-17 19:56:36 -05003181 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smarta4bc3372006-12-02 13:34:16 -05003182 lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq);
James Smart2e0fef82007-06-17 19:56:36 -05003183 spin_lock_irqsave(&phba->hbalock, iflag);
James Smarta4bc3372006-12-02 13:34:16 -05003184 break;
dea31012005-04-17 16:05:31 -05003185 default:
3186 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3187 char adaptermsg[LPFC_MAX_ADPTMSG];
3188 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3189 memcpy(&adaptermsg[0], (uint8_t *) irsp,
3190 MAX_MSG_DATA);
Joe Perches898eb712007-10-18 03:06:30 -07003191 dev_warn(&((phba->pcidev)->dev),
3192 "lpfc%d: %s\n",
dea31012005-04-17 16:05:31 -05003193 phba->brd_no, adaptermsg);
3194 } else {
3195 /* Unknown IOCB command */
3196 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04003197 "0334 Unknown IOCB command "
James Smart92d7f7b2007-06-17 19:56:38 -05003198 "Data: x%x, x%x x%x x%x x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04003199 type, irsp->ulpCommand,
James Smart92d7f7b2007-06-17 19:56:38 -05003200 irsp->ulpStatus,
3201 irsp->ulpIoTag,
3202 irsp->ulpContext);
dea31012005-04-17 16:05:31 -05003203 }
3204 break;
3205 }
3206
3207 /*
3208 * The response IOCB has been processed. Update the ring
3209 * pointer in SLIM. If the port response put pointer has not
3210 * been updated, sync the pgp->rspPutInx and fetch the new port
3211 * response put pointer.
3212 */
James Smart7e56aa22012-08-03 12:35:34 -04003213 writel(pring->sli.sli3.rspidx,
3214 &phba->host_gp[pring->ringno].rspGetInx);
dea31012005-04-17 16:05:31 -05003215
James Smart7e56aa22012-08-03 12:35:34 -04003216 if (pring->sli.sli3.rspidx == portRspPut)
dea31012005-04-17 16:05:31 -05003217 portRspPut = le32_to_cpu(pgp->rspPutInx);
3218 }
3219
3220 if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) {
3221 pring->stats.iocb_rsp_full++;
3222 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3223 writel(status, phba->CAregaddr);
3224 readl(phba->CAregaddr);
3225 }
3226 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3227 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3228 pring->stats.iocb_cmd_empty++;
3229
3230 /* Force update of the local copy of cmdGetInx */
James Smart7e56aa22012-08-03 12:35:34 -04003231 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
dea31012005-04-17 16:05:31 -05003232 lpfc_sli_resume_iocb(phba, pring);
3233
3234 if ((pring->lpfc_sli_cmd_available))
3235 (pring->lpfc_sli_cmd_available) (phba, pring);
3236
3237 }
3238
James Smart45ed1192009-10-02 15:17:02 -04003239 phba->fcp_ring_in_use = 0;
James Smart2e0fef82007-06-17 19:56:36 -05003240 spin_unlock_irqrestore(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05003241 return rc;
3242}
3243
James Smarte59058c2008-08-24 21:49:00 -04003244/**
James Smart3772a992009-05-22 14:50:54 -04003245 * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb
3246 * @phba: Pointer to HBA context object.
3247 * @pring: Pointer to driver SLI ring object.
3248 * @rspiocbp: Pointer to driver response IOCB object.
3249 *
3250 * This function is called from the worker thread when there is a slow-path
3251 * response IOCB to process. This function chains all the response iocbs until
3252 * seeing the iocb with the LE bit set. The function will call
3253 * lpfc_sli_process_sol_iocb function if the response iocb indicates a
3254 * completion of a command iocb. The function will call the
3255 * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb.
3256 * The function frees the resources or calls the completion handler if this
3257 * iocb is an abort completion. The function returns NULL when the response
3258 * iocb has the LE bit set and all the chained iocbs are processed, otherwise
3259 * this function shall chain the iocb on to the iocb_continueq and return the
3260 * response iocb passed in.
3261 **/
3262static struct lpfc_iocbq *
3263lpfc_sli_sp_handle_rspiocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3264 struct lpfc_iocbq *rspiocbp)
3265{
3266 struct lpfc_iocbq *saveq;
3267 struct lpfc_iocbq *cmdiocbp;
3268 struct lpfc_iocbq *next_iocb;
3269 IOCB_t *irsp = NULL;
3270 uint32_t free_saveq;
3271 uint8_t iocb_cmd_type;
3272 lpfc_iocb_type type;
3273 unsigned long iflag;
3274 int rc;
3275
3276 spin_lock_irqsave(&phba->hbalock, iflag);
3277 /* First add the response iocb to the countinueq list */
3278 list_add_tail(&rspiocbp->list, &(pring->iocb_continueq));
3279 pring->iocb_continueq_cnt++;
3280
Justin P. Mattock70f23fd2011-05-10 10:16:21 +02003281 /* Now, determine whether the list is completed for processing */
James Smart3772a992009-05-22 14:50:54 -04003282 irsp = &rspiocbp->iocb;
3283 if (irsp->ulpLe) {
3284 /*
3285 * By default, the driver expects to free all resources
3286 * associated with this iocb completion.
3287 */
3288 free_saveq = 1;
3289 saveq = list_get_first(&pring->iocb_continueq,
3290 struct lpfc_iocbq, list);
3291 irsp = &(saveq->iocb);
3292 list_del_init(&pring->iocb_continueq);
3293 pring->iocb_continueq_cnt = 0;
3294
3295 pring->stats.iocb_rsp++;
3296
3297 /*
3298 * If resource errors reported from HBA, reduce
3299 * queuedepths of the SCSI device.
3300 */
3301 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
James Smarte3d2b802012-08-14 14:25:43 -04003302 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
3303 IOERR_NO_RESOURCES)) {
James Smart3772a992009-05-22 14:50:54 -04003304 spin_unlock_irqrestore(&phba->hbalock, iflag);
3305 phba->lpfc_rampdown_queue_depth(phba);
3306 spin_lock_irqsave(&phba->hbalock, iflag);
3307 }
3308
3309 if (irsp->ulpStatus) {
3310 /* Rsp ring <ringno> error: IOCB */
3311 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3312 "0328 Rsp Ring %d error: "
3313 "IOCB Data: "
3314 "x%x x%x x%x x%x "
3315 "x%x x%x x%x x%x "
3316 "x%x x%x x%x x%x "
3317 "x%x x%x x%x x%x\n",
3318 pring->ringno,
3319 irsp->un.ulpWord[0],
3320 irsp->un.ulpWord[1],
3321 irsp->un.ulpWord[2],
3322 irsp->un.ulpWord[3],
3323 irsp->un.ulpWord[4],
3324 irsp->un.ulpWord[5],
3325 *(((uint32_t *) irsp) + 6),
3326 *(((uint32_t *) irsp) + 7),
3327 *(((uint32_t *) irsp) + 8),
3328 *(((uint32_t *) irsp) + 9),
3329 *(((uint32_t *) irsp) + 10),
3330 *(((uint32_t *) irsp) + 11),
3331 *(((uint32_t *) irsp) + 12),
3332 *(((uint32_t *) irsp) + 13),
3333 *(((uint32_t *) irsp) + 14),
3334 *(((uint32_t *) irsp) + 15));
3335 }
3336
3337 /*
3338 * Fetch the IOCB command type and call the correct completion
3339 * routine. Solicited and Unsolicited IOCBs on the ELS ring
3340 * get freed back to the lpfc_iocb_list by the discovery
3341 * kernel thread.
3342 */
3343 iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK;
3344 type = lpfc_sli_iocb_cmd_type(iocb_cmd_type);
3345 switch (type) {
3346 case LPFC_SOL_IOCB:
3347 spin_unlock_irqrestore(&phba->hbalock, iflag);
3348 rc = lpfc_sli_process_sol_iocb(phba, pring, saveq);
3349 spin_lock_irqsave(&phba->hbalock, iflag);
3350 break;
3351
3352 case LPFC_UNSOL_IOCB:
3353 spin_unlock_irqrestore(&phba->hbalock, iflag);
3354 rc = lpfc_sli_process_unsol_iocb(phba, pring, saveq);
3355 spin_lock_irqsave(&phba->hbalock, iflag);
3356 if (!rc)
3357 free_saveq = 0;
3358 break;
3359
3360 case LPFC_ABORT_IOCB:
3361 cmdiocbp = NULL;
3362 if (irsp->ulpCommand != CMD_XRI_ABORTED_CX)
3363 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring,
3364 saveq);
3365 if (cmdiocbp) {
3366 /* Call the specified completion routine */
3367 if (cmdiocbp->iocb_cmpl) {
3368 spin_unlock_irqrestore(&phba->hbalock,
3369 iflag);
3370 (cmdiocbp->iocb_cmpl)(phba, cmdiocbp,
3371 saveq);
3372 spin_lock_irqsave(&phba->hbalock,
3373 iflag);
3374 } else
3375 __lpfc_sli_release_iocbq(phba,
3376 cmdiocbp);
3377 }
3378 break;
3379
3380 case LPFC_UNKNOWN_IOCB:
3381 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3382 char adaptermsg[LPFC_MAX_ADPTMSG];
3383 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3384 memcpy(&adaptermsg[0], (uint8_t *)irsp,
3385 MAX_MSG_DATA);
3386 dev_warn(&((phba->pcidev)->dev),
3387 "lpfc%d: %s\n",
3388 phba->brd_no, adaptermsg);
3389 } else {
3390 /* Unknown IOCB command */
3391 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3392 "0335 Unknown IOCB "
3393 "command Data: x%x "
3394 "x%x x%x x%x\n",
3395 irsp->ulpCommand,
3396 irsp->ulpStatus,
3397 irsp->ulpIoTag,
3398 irsp->ulpContext);
3399 }
3400 break;
3401 }
3402
3403 if (free_saveq) {
3404 list_for_each_entry_safe(rspiocbp, next_iocb,
3405 &saveq->list, list) {
James Smart61f35bf2013-05-31 17:03:48 -04003406 list_del_init(&rspiocbp->list);
James Smart3772a992009-05-22 14:50:54 -04003407 __lpfc_sli_release_iocbq(phba, rspiocbp);
3408 }
3409 __lpfc_sli_release_iocbq(phba, saveq);
3410 }
3411 rspiocbp = NULL;
3412 }
3413 spin_unlock_irqrestore(&phba->hbalock, iflag);
3414 return rspiocbp;
3415}
3416
3417/**
3418 * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs
James Smarte59058c2008-08-24 21:49:00 -04003419 * @phba: Pointer to HBA context object.
3420 * @pring: Pointer to driver SLI ring object.
3421 * @mask: Host attention register mask for this ring.
3422 *
James Smart3772a992009-05-22 14:50:54 -04003423 * This routine wraps the actual slow_ring event process routine from the
3424 * API jump table function pointer from the lpfc_hba struct.
James Smarte59058c2008-08-24 21:49:00 -04003425 **/
James Smart3772a992009-05-22 14:50:54 -04003426void
James Smart2e0fef82007-06-17 19:56:36 -05003427lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba,
3428 struct lpfc_sli_ring *pring, uint32_t mask)
dea31012005-04-17 16:05:31 -05003429{
James Smart3772a992009-05-22 14:50:54 -04003430 phba->lpfc_sli_handle_slow_ring_event(phba, pring, mask);
3431}
3432
3433/**
3434 * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings
3435 * @phba: Pointer to HBA context object.
3436 * @pring: Pointer to driver SLI ring object.
3437 * @mask: Host attention register mask for this ring.
3438 *
3439 * This function is called from the worker thread when there is a ring event
3440 * for non-fcp rings. The caller does not hold any lock. The function will
3441 * remove each response iocb in the response ring and calls the handle
3442 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3443 **/
3444static void
3445lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba,
3446 struct lpfc_sli_ring *pring, uint32_t mask)
3447{
James Smart34b02dc2008-08-24 21:49:55 -04003448 struct lpfc_pgp *pgp;
dea31012005-04-17 16:05:31 -05003449 IOCB_t *entry;
3450 IOCB_t *irsp = NULL;
3451 struct lpfc_iocbq *rspiocbp = NULL;
dea31012005-04-17 16:05:31 -05003452 uint32_t portRspPut, portRspMax;
dea31012005-04-17 16:05:31 -05003453 unsigned long iflag;
James Smart3772a992009-05-22 14:50:54 -04003454 uint32_t status;
dea31012005-04-17 16:05:31 -05003455
James Smart34b02dc2008-08-24 21:49:55 -04003456 pgp = &phba->port_gp[pring->ringno];
James Smart2e0fef82007-06-17 19:56:36 -05003457 spin_lock_irqsave(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05003458 pring->stats.iocb_event++;
3459
dea31012005-04-17 16:05:31 -05003460 /*
3461 * The next available response entry should never exceed the maximum
3462 * entries. If it does, treat it as an adapter hardware error.
3463 */
James Smart7e56aa22012-08-03 12:35:34 -04003464 portRspMax = pring->sli.sli3.numRiocb;
dea31012005-04-17 16:05:31 -05003465 portRspPut = le32_to_cpu(pgp->rspPutInx);
3466 if (portRspPut >= portRspMax) {
3467 /*
Frederik Schwarzer025dfda2008-10-16 19:02:37 +02003468 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
dea31012005-04-17 16:05:31 -05003469 * rsp ring <portRspMax>
3470 */
James Smarted957682007-06-17 19:56:37 -05003471 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04003472 "0303 Ring %d handler: portRspPut %d "
Frederik Schwarzer025dfda2008-10-16 19:02:37 +02003473 "is bigger than rsp ring %d\n",
James Smarte8b62012007-08-02 11:10:09 -04003474 pring->ringno, portRspPut, portRspMax);
dea31012005-04-17 16:05:31 -05003475
James Smart2e0fef82007-06-17 19:56:36 -05003476 phba->link_state = LPFC_HBA_ERROR;
3477 spin_unlock_irqrestore(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05003478
3479 phba->work_hs = HS_FFER3;
3480 lpfc_handle_eratt(phba);
3481
James Smart3772a992009-05-22 14:50:54 -04003482 return;
dea31012005-04-17 16:05:31 -05003483 }
3484
3485 rmb();
James Smart7e56aa22012-08-03 12:35:34 -04003486 while (pring->sli.sli3.rspidx != portRspPut) {
dea31012005-04-17 16:05:31 -05003487 /*
3488 * Build a completion list and call the appropriate handler.
3489 * The process is to get the next available response iocb, get
3490 * a free iocb from the list, copy the response data into the
3491 * free iocb, insert to the continuation list, and update the
3492 * next response index to slim. This process makes response
3493 * iocb's in the ring available to DMA as fast as possible but
3494 * pays a penalty for a copy operation. Since the iocb is
3495 * only 32 bytes, this penalty is considered small relative to
3496 * the PCI reads for register values and a slim write. When
3497 * the ulpLe field is set, the entire Command has been
3498 * received.
3499 */
James Smarted957682007-06-17 19:56:37 -05003500 entry = lpfc_resp_iocb(phba, pring);
3501
James Smart858c9f62007-06-17 19:56:39 -05003502 phba->last_completion_time = jiffies;
James Smart2e0fef82007-06-17 19:56:36 -05003503 rspiocbp = __lpfc_sli_get_iocbq(phba);
dea31012005-04-17 16:05:31 -05003504 if (rspiocbp == NULL) {
3505 printk(KERN_ERR "%s: out of buffers! Failing "
Harvey Harrisoncadbd4a2008-07-03 23:47:27 -07003506 "completion.\n", __func__);
dea31012005-04-17 16:05:31 -05003507 break;
3508 }
3509
James Smarted957682007-06-17 19:56:37 -05003510 lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb,
3511 phba->iocb_rsp_size);
dea31012005-04-17 16:05:31 -05003512 irsp = &rspiocbp->iocb;
3513
James Smart7e56aa22012-08-03 12:35:34 -04003514 if (++pring->sli.sli3.rspidx >= portRspMax)
3515 pring->sli.sli3.rspidx = 0;
dea31012005-04-17 16:05:31 -05003516
James Smarta58cbd52007-08-02 11:09:43 -04003517 if (pring->ringno == LPFC_ELS_RING) {
3518 lpfc_debugfs_slow_ring_trc(phba,
3519 "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x",
3520 *(((uint32_t *) irsp) + 4),
3521 *(((uint32_t *) irsp) + 6),
3522 *(((uint32_t *) irsp) + 7));
3523 }
3524
James Smart7e56aa22012-08-03 12:35:34 -04003525 writel(pring->sli.sli3.rspidx,
3526 &phba->host_gp[pring->ringno].rspGetInx);
dea31012005-04-17 16:05:31 -05003527
James Smart3772a992009-05-22 14:50:54 -04003528 spin_unlock_irqrestore(&phba->hbalock, iflag);
3529 /* Handle the response IOCB */
3530 rspiocbp = lpfc_sli_sp_handle_rspiocb(phba, pring, rspiocbp);
3531 spin_lock_irqsave(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05003532
3533 /*
3534 * If the port response put pointer has not been updated, sync
3535 * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
3536 * response put pointer.
3537 */
James Smart7e56aa22012-08-03 12:35:34 -04003538 if (pring->sli.sli3.rspidx == portRspPut) {
dea31012005-04-17 16:05:31 -05003539 portRspPut = le32_to_cpu(pgp->rspPutInx);
3540 }
James Smart7e56aa22012-08-03 12:35:34 -04003541 } /* while (pring->sli.sli3.rspidx != portRspPut) */
dea31012005-04-17 16:05:31 -05003542
James Smart92d7f7b2007-06-17 19:56:38 -05003543 if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) {
dea31012005-04-17 16:05:31 -05003544 /* At least one response entry has been freed */
3545 pring->stats.iocb_rsp_full++;
3546 /* SET RxRE_RSP in Chip Att register */
3547 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3548 writel(status, phba->CAregaddr);
3549 readl(phba->CAregaddr); /* flush */
3550 }
3551 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3552 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3553 pring->stats.iocb_cmd_empty++;
3554
3555 /* Force update of the local copy of cmdGetInx */
James Smart7e56aa22012-08-03 12:35:34 -04003556 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
dea31012005-04-17 16:05:31 -05003557 lpfc_sli_resume_iocb(phba, pring);
3558
3559 if ((pring->lpfc_sli_cmd_available))
3560 (pring->lpfc_sli_cmd_available) (phba, pring);
3561
3562 }
3563
James Smart2e0fef82007-06-17 19:56:36 -05003564 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart3772a992009-05-22 14:50:54 -04003565 return;
dea31012005-04-17 16:05:31 -05003566}
3567
James Smarte59058c2008-08-24 21:49:00 -04003568/**
James Smart4f774512009-05-22 14:52:35 -04003569 * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events
3570 * @phba: Pointer to HBA context object.
3571 * @pring: Pointer to driver SLI ring object.
3572 * @mask: Host attention register mask for this ring.
3573 *
3574 * This function is called from the worker thread when there is a pending
3575 * ELS response iocb on the driver internal slow-path response iocb worker
3576 * queue. The caller does not hold any lock. The function will remove each
3577 * response iocb from the response worker queue and calls the handle
3578 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3579 **/
3580static void
3581lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba *phba,
3582 struct lpfc_sli_ring *pring, uint32_t mask)
3583{
3584 struct lpfc_iocbq *irspiocbq;
James Smart4d9ab992009-10-02 15:16:39 -04003585 struct hbq_dmabuf *dmabuf;
3586 struct lpfc_cq_event *cq_event;
James Smart4f774512009-05-22 14:52:35 -04003587 unsigned long iflag;
James Smart7f4b23e2018-09-10 10:30:45 -07003588 int count = 0;
James Smart4f774512009-05-22 14:52:35 -04003589
James Smart45ed1192009-10-02 15:17:02 -04003590 spin_lock_irqsave(&phba->hbalock, iflag);
3591 phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
3592 spin_unlock_irqrestore(&phba->hbalock, iflag);
3593 while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
James Smart4f774512009-05-22 14:52:35 -04003594 /* Get the response iocb from the head of work queue */
3595 spin_lock_irqsave(&phba->hbalock, iflag);
James Smart45ed1192009-10-02 15:17:02 -04003596 list_remove_head(&phba->sli4_hba.sp_queue_event,
James Smart4d9ab992009-10-02 15:16:39 -04003597 cq_event, struct lpfc_cq_event, list);
James Smart4f774512009-05-22 14:52:35 -04003598 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart4d9ab992009-10-02 15:16:39 -04003599
3600 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
3601 case CQE_CODE_COMPL_WQE:
3602 irspiocbq = container_of(cq_event, struct lpfc_iocbq,
3603 cq_event);
James Smart45ed1192009-10-02 15:17:02 -04003604 /* Translate ELS WCQE to response IOCBQ */
3605 irspiocbq = lpfc_sli4_els_wcqe_to_rspiocbq(phba,
3606 irspiocbq);
3607 if (irspiocbq)
3608 lpfc_sli_sp_handle_rspiocb(phba, pring,
3609 irspiocbq);
James Smart7f4b23e2018-09-10 10:30:45 -07003610 count++;
James Smart4d9ab992009-10-02 15:16:39 -04003611 break;
3612 case CQE_CODE_RECEIVE:
James Smart7851fe22011-07-22 18:36:52 -04003613 case CQE_CODE_RECEIVE_V1:
James Smart4d9ab992009-10-02 15:16:39 -04003614 dmabuf = container_of(cq_event, struct hbq_dmabuf,
3615 cq_event);
3616 lpfc_sli4_handle_received_buffer(phba, dmabuf);
James Smart7f4b23e2018-09-10 10:30:45 -07003617 count++;
James Smart4d9ab992009-10-02 15:16:39 -04003618 break;
3619 default:
3620 break;
3621 }
James Smart7f4b23e2018-09-10 10:30:45 -07003622
3623 /* Limit the number of events to 64 to avoid soft lockups */
3624 if (count == 64)
3625 break;
James Smart4f774512009-05-22 14:52:35 -04003626 }
3627}
3628
3629/**
James Smart3621a712009-04-06 18:47:14 -04003630 * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring
James Smarte59058c2008-08-24 21:49:00 -04003631 * @phba: Pointer to HBA context object.
3632 * @pring: Pointer to driver SLI ring object.
3633 *
3634 * This function aborts all iocbs in the given ring and frees all the iocb
3635 * objects in txq. This function issues an abort iocb for all the iocb commands
3636 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3637 * the return of this function. The caller is not required to hold any locks.
3638 **/
James Smart2e0fef82007-06-17 19:56:36 -05003639void
dea31012005-04-17 16:05:31 -05003640lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
3641{
James Smart2534ba72007-04-25 09:52:20 -04003642 LIST_HEAD(completions);
dea31012005-04-17 16:05:31 -05003643 struct lpfc_iocbq *iocb, *next_iocb;
dea31012005-04-17 16:05:31 -05003644
James Smart92d7f7b2007-06-17 19:56:38 -05003645 if (pring->ringno == LPFC_ELS_RING) {
3646 lpfc_fabric_abort_hba(phba);
3647 }
3648
dea31012005-04-17 16:05:31 -05003649 /* Error everything on txq and txcmplq
3650 * First do the txq.
3651 */
James Smartdb55fba2014-04-04 13:52:02 -04003652 if (phba->sli_rev >= LPFC_SLI_REV4) {
3653 spin_lock_irq(&pring->ring_lock);
3654 list_splice_init(&pring->txq, &completions);
3655 pring->txq_cnt = 0;
3656 spin_unlock_irq(&pring->ring_lock);
dea31012005-04-17 16:05:31 -05003657
James Smartdb55fba2014-04-04 13:52:02 -04003658 spin_lock_irq(&phba->hbalock);
3659 /* Next issue ABTS for everything on the txcmplq */
3660 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3661 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3662 spin_unlock_irq(&phba->hbalock);
3663 } else {
3664 spin_lock_irq(&phba->hbalock);
3665 list_splice_init(&pring->txq, &completions);
3666 pring->txq_cnt = 0;
James Smart2534ba72007-04-25 09:52:20 -04003667
James Smartdb55fba2014-04-04 13:52:02 -04003668 /* Next issue ABTS for everything on the txcmplq */
3669 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3670 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3671 spin_unlock_irq(&phba->hbalock);
3672 }
James Smart2534ba72007-04-25 09:52:20 -04003673
James Smarta257bf92009-04-06 18:48:10 -04003674 /* Cancel all the IOCBs from the completions list */
3675 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
3676 IOERR_SLI_ABORTED);
dea31012005-04-17 16:05:31 -05003677}
3678
James Smarte59058c2008-08-24 21:49:00 -04003679/**
James Smart895427b2017-02-12 13:52:30 -08003680 * lpfc_sli_abort_wqe_ring - Abort all iocbs in the ring
3681 * @phba: Pointer to HBA context object.
3682 * @pring: Pointer to driver SLI ring object.
3683 *
3684 * This function aborts all iocbs in the given ring and frees all the iocb
3685 * objects in txq. This function issues an abort iocb for all the iocb commands
3686 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3687 * the return of this function. The caller is not required to hold any locks.
3688 **/
3689void
3690lpfc_sli_abort_wqe_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
3691{
3692 LIST_HEAD(completions);
3693 struct lpfc_iocbq *iocb, *next_iocb;
3694
3695 if (pring->ringno == LPFC_ELS_RING)
3696 lpfc_fabric_abort_hba(phba);
3697
3698 spin_lock_irq(&phba->hbalock);
3699 /* Next issue ABTS for everything on the txcmplq */
3700 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3701 lpfc_sli4_abort_nvme_io(phba, pring, iocb);
3702 spin_unlock_irq(&phba->hbalock);
3703}
3704
3705
3706/**
James Smartdb55fba2014-04-04 13:52:02 -04003707 * lpfc_sli_abort_fcp_rings - Abort all iocbs in all FCP rings
3708 * @phba: Pointer to HBA context object.
3709 * @pring: Pointer to driver SLI ring object.
3710 *
3711 * This function aborts all iocbs in FCP rings and frees all the iocb
3712 * objects in txq. This function issues an abort iocb for all the iocb commands
3713 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3714 * the return of this function. The caller is not required to hold any locks.
3715 **/
3716void
3717lpfc_sli_abort_fcp_rings(struct lpfc_hba *phba)
3718{
3719 struct lpfc_sli *psli = &phba->sli;
3720 struct lpfc_sli_ring *pring;
3721 uint32_t i;
3722
3723 /* Look on all the FCP Rings for the iotag */
3724 if (phba->sli_rev >= LPFC_SLI_REV4) {
3725 for (i = 0; i < phba->cfg_fcp_io_channel; i++) {
James Smart895427b2017-02-12 13:52:30 -08003726 pring = phba->sli4_hba.fcp_wq[i]->pring;
James Smartdb55fba2014-04-04 13:52:02 -04003727 lpfc_sli_abort_iocb_ring(phba, pring);
3728 }
3729 } else {
James Smart895427b2017-02-12 13:52:30 -08003730 pring = &psli->sli3_ring[LPFC_FCP_RING];
James Smartdb55fba2014-04-04 13:52:02 -04003731 lpfc_sli_abort_iocb_ring(phba, pring);
3732 }
3733}
3734
James Smart895427b2017-02-12 13:52:30 -08003735/**
3736 * lpfc_sli_abort_nvme_rings - Abort all wqes in all NVME rings
3737 * @phba: Pointer to HBA context object.
3738 *
3739 * This function aborts all wqes in NVME rings. This function issues an
3740 * abort wqe for all the outstanding IO commands in txcmplq. The iocbs in
3741 * the txcmplq is not guaranteed to complete before the return of this
3742 * function. The caller is not required to hold any locks.
3743 **/
3744void
3745lpfc_sli_abort_nvme_rings(struct lpfc_hba *phba)
3746{
3747 struct lpfc_sli_ring *pring;
3748 uint32_t i;
3749
3750 if (phba->sli_rev < LPFC_SLI_REV4)
3751 return;
3752
3753 /* Abort all IO on each NVME ring. */
3754 for (i = 0; i < phba->cfg_nvme_io_channel; i++) {
3755 pring = phba->sli4_hba.nvme_wq[i]->pring;
3756 lpfc_sli_abort_wqe_ring(phba, pring);
3757 }
3758}
3759
James Smartdb55fba2014-04-04 13:52:02 -04003760
3761/**
James Smart3621a712009-04-06 18:47:14 -04003762 * lpfc_sli_flush_fcp_rings - flush all iocbs in the fcp ring
James Smarta8e497d2008-08-24 21:50:11 -04003763 * @phba: Pointer to HBA context object.
3764 *
3765 * This function flushes all iocbs in the fcp ring and frees all the iocb
3766 * objects in txq and txcmplq. This function will not issue abort iocbs
3767 * for all the iocb commands in txcmplq, they will just be returned with
3768 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
3769 * slot has been permanently disabled.
3770 **/
3771void
3772lpfc_sli_flush_fcp_rings(struct lpfc_hba *phba)
3773{
3774 LIST_HEAD(txq);
3775 LIST_HEAD(txcmplq);
James Smarta8e497d2008-08-24 21:50:11 -04003776 struct lpfc_sli *psli = &phba->sli;
3777 struct lpfc_sli_ring *pring;
James Smartdb55fba2014-04-04 13:52:02 -04003778 uint32_t i;
James Smarta8e497d2008-08-24 21:50:11 -04003779
3780 spin_lock_irq(&phba->hbalock);
James Smart4f2e66c2012-05-09 21:17:07 -04003781 /* Indicate the I/O queues are flushed */
3782 phba->hba_flag |= HBA_FCP_IOQ_FLUSH;
James Smarta8e497d2008-08-24 21:50:11 -04003783 spin_unlock_irq(&phba->hbalock);
3784
James Smartdb55fba2014-04-04 13:52:02 -04003785 /* Look on all the FCP Rings for the iotag */
3786 if (phba->sli_rev >= LPFC_SLI_REV4) {
3787 for (i = 0; i < phba->cfg_fcp_io_channel; i++) {
James Smart895427b2017-02-12 13:52:30 -08003788 pring = phba->sli4_hba.fcp_wq[i]->pring;
James Smarta8e497d2008-08-24 21:50:11 -04003789
James Smartdb55fba2014-04-04 13:52:02 -04003790 spin_lock_irq(&pring->ring_lock);
3791 /* Retrieve everything on txq */
3792 list_splice_init(&pring->txq, &txq);
3793 /* Retrieve everything on the txcmplq */
3794 list_splice_init(&pring->txcmplq, &txcmplq);
3795 pring->txq_cnt = 0;
3796 pring->txcmplq_cnt = 0;
3797 spin_unlock_irq(&pring->ring_lock);
3798
3799 /* Flush the txq */
3800 lpfc_sli_cancel_iocbs(phba, &txq,
3801 IOSTAT_LOCAL_REJECT,
3802 IOERR_SLI_DOWN);
3803 /* Flush the txcmpq */
3804 lpfc_sli_cancel_iocbs(phba, &txcmplq,
3805 IOSTAT_LOCAL_REJECT,
3806 IOERR_SLI_DOWN);
3807 }
3808 } else {
James Smart895427b2017-02-12 13:52:30 -08003809 pring = &psli->sli3_ring[LPFC_FCP_RING];
James Smartdb55fba2014-04-04 13:52:02 -04003810
3811 spin_lock_irq(&phba->hbalock);
3812 /* Retrieve everything on txq */
3813 list_splice_init(&pring->txq, &txq);
3814 /* Retrieve everything on the txcmplq */
3815 list_splice_init(&pring->txcmplq, &txcmplq);
3816 pring->txq_cnt = 0;
3817 pring->txcmplq_cnt = 0;
3818 spin_unlock_irq(&phba->hbalock);
3819
3820 /* Flush the txq */
3821 lpfc_sli_cancel_iocbs(phba, &txq, IOSTAT_LOCAL_REJECT,
3822 IOERR_SLI_DOWN);
3823 /* Flush the txcmpq */
3824 lpfc_sli_cancel_iocbs(phba, &txcmplq, IOSTAT_LOCAL_REJECT,
3825 IOERR_SLI_DOWN);
3826 }
James Smarta8e497d2008-08-24 21:50:11 -04003827}
3828
3829/**
James Smart895427b2017-02-12 13:52:30 -08003830 * lpfc_sli_flush_nvme_rings - flush all wqes in the nvme rings
3831 * @phba: Pointer to HBA context object.
3832 *
3833 * This function flushes all wqes in the nvme rings and frees all resources
3834 * in the txcmplq. This function does not issue abort wqes for the IO
3835 * commands in txcmplq, they will just be returned with
3836 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
3837 * slot has been permanently disabled.
3838 **/
3839void
3840lpfc_sli_flush_nvme_rings(struct lpfc_hba *phba)
3841{
3842 LIST_HEAD(txcmplq);
3843 struct lpfc_sli_ring *pring;
3844 uint32_t i;
3845
3846 if (phba->sli_rev < LPFC_SLI_REV4)
3847 return;
3848
3849 /* Hint to other driver operations that a flush is in progress. */
3850 spin_lock_irq(&phba->hbalock);
3851 phba->hba_flag |= HBA_NVME_IOQ_FLUSH;
3852 spin_unlock_irq(&phba->hbalock);
3853
3854 /* Cycle through all NVME rings and complete each IO with
3855 * a local driver reason code. This is a flush so no
3856 * abort exchange to FW.
3857 */
3858 for (i = 0; i < phba->cfg_nvme_io_channel; i++) {
3859 pring = phba->sli4_hba.nvme_wq[i]->pring;
3860
3861 /* Retrieve everything on the txcmplq */
3862 spin_lock_irq(&pring->ring_lock);
3863 list_splice_init(&pring->txcmplq, &txcmplq);
3864 pring->txcmplq_cnt = 0;
3865 spin_unlock_irq(&pring->ring_lock);
3866
3867 /* Flush the txcmpq &&&PAE */
3868 lpfc_sli_cancel_iocbs(phba, &txcmplq,
3869 IOSTAT_LOCAL_REJECT,
3870 IOERR_SLI_DOWN);
3871 }
3872}
3873
3874/**
James Smart3772a992009-05-22 14:50:54 -04003875 * lpfc_sli_brdready_s3 - Check for sli3 host ready status
James Smarte59058c2008-08-24 21:49:00 -04003876 * @phba: Pointer to HBA context object.
3877 * @mask: Bit mask to be checked.
3878 *
3879 * This function reads the host status register and compares
3880 * with the provided bit mask to check if HBA completed
3881 * the restart. This function will wait in a loop for the
3882 * HBA to complete restart. If the HBA does not restart within
3883 * 15 iterations, the function will reset the HBA again. The
3884 * function returns 1 when HBA fail to restart otherwise returns
3885 * zero.
3886 **/
James Smart3772a992009-05-22 14:50:54 -04003887static int
3888lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask)
dea31012005-04-17 16:05:31 -05003889{
Jamie Wellnitz41415862006-02-28 19:25:27 -05003890 uint32_t status;
3891 int i = 0;
3892 int retval = 0;
dea31012005-04-17 16:05:31 -05003893
Jamie Wellnitz41415862006-02-28 19:25:27 -05003894 /* Read the HBA Host Status Register */
James Smart9940b972011-03-11 16:06:12 -05003895 if (lpfc_readl(phba->HSregaddr, &status))
3896 return 1;
dea31012005-04-17 16:05:31 -05003897
Jamie Wellnitz41415862006-02-28 19:25:27 -05003898 /*
3899 * Check status register every 100ms for 5 retries, then every
3900 * 500ms for 5, then every 2.5 sec for 5, then reset board and
3901 * every 2.5 sec for 4.
3902 * Break our of the loop if errors occurred during init.
3903 */
3904 while (((status & mask) != mask) &&
3905 !(status & HS_FFERM) &&
3906 i++ < 20) {
dea31012005-04-17 16:05:31 -05003907
Jamie Wellnitz41415862006-02-28 19:25:27 -05003908 if (i <= 5)
3909 msleep(10);
3910 else if (i <= 10)
3911 msleep(500);
3912 else
3913 msleep(2500);
dea31012005-04-17 16:05:31 -05003914
Jamie Wellnitz41415862006-02-28 19:25:27 -05003915 if (i == 15) {
James Smart2e0fef82007-06-17 19:56:36 -05003916 /* Do post */
James Smart92d7f7b2007-06-17 19:56:38 -05003917 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003918 lpfc_sli_brdrestart(phba);
3919 }
3920 /* Read the HBA Host Status Register */
James Smart9940b972011-03-11 16:06:12 -05003921 if (lpfc_readl(phba->HSregaddr, &status)) {
3922 retval = 1;
3923 break;
3924 }
dea31012005-04-17 16:05:31 -05003925 }
dea31012005-04-17 16:05:31 -05003926
Jamie Wellnitz41415862006-02-28 19:25:27 -05003927 /* Check to see if any errors occurred during init */
3928 if ((status & HS_FFERM) || (i >= 20)) {
James Smarte40a02c2010-02-26 14:13:54 -05003929 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3930 "2751 Adapter failed to restart, "
3931 "status reg x%x, FW Data: A8 x%x AC x%x\n",
3932 status,
3933 readl(phba->MBslimaddr + 0xa8),
3934 readl(phba->MBslimaddr + 0xac));
James Smart2e0fef82007-06-17 19:56:36 -05003935 phba->link_state = LPFC_HBA_ERROR;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003936 retval = 1;
3937 }
dea31012005-04-17 16:05:31 -05003938
Jamie Wellnitz41415862006-02-28 19:25:27 -05003939 return retval;
dea31012005-04-17 16:05:31 -05003940}
3941
James Smartda0436e2009-05-22 14:51:39 -04003942/**
3943 * lpfc_sli_brdready_s4 - Check for sli4 host ready status
3944 * @phba: Pointer to HBA context object.
3945 * @mask: Bit mask to be checked.
3946 *
3947 * This function checks the host status register to check if HBA is
3948 * ready. This function will wait in a loop for the HBA to be ready
3949 * If the HBA is not ready , the function will will reset the HBA PCI
3950 * function again. The function returns 1 when HBA fail to be ready
3951 * otherwise returns zero.
3952 **/
3953static int
3954lpfc_sli_brdready_s4(struct lpfc_hba *phba, uint32_t mask)
3955{
3956 uint32_t status;
3957 int retval = 0;
3958
3959 /* Read the HBA Host Status Register */
3960 status = lpfc_sli4_post_status_check(phba);
3961
3962 if (status) {
3963 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3964 lpfc_sli_brdrestart(phba);
3965 status = lpfc_sli4_post_status_check(phba);
3966 }
3967
3968 /* Check to see if any errors occurred during init */
3969 if (status) {
3970 phba->link_state = LPFC_HBA_ERROR;
3971 retval = 1;
3972 } else
3973 phba->sli4_hba.intr_enable = 0;
3974
3975 return retval;
3976}
3977
3978/**
3979 * lpfc_sli_brdready - Wrapper func for checking the hba readyness
3980 * @phba: Pointer to HBA context object.
3981 * @mask: Bit mask to be checked.
3982 *
3983 * This routine wraps the actual SLI3 or SLI4 hba readyness check routine
3984 * from the API jump table function pointer from the lpfc_hba struct.
3985 **/
3986int
3987lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask)
3988{
3989 return phba->lpfc_sli_brdready(phba, mask);
3990}
3991
James Smart92908312006-03-07 15:04:13 -05003992#define BARRIER_TEST_PATTERN (0xdeadbeef)
3993
James Smarte59058c2008-08-24 21:49:00 -04003994/**
James Smart3621a712009-04-06 18:47:14 -04003995 * lpfc_reset_barrier - Make HBA ready for HBA reset
James Smarte59058c2008-08-24 21:49:00 -04003996 * @phba: Pointer to HBA context object.
3997 *
James Smart1b511972011-12-13 13:23:09 -05003998 * This function is called before resetting an HBA. This function is called
3999 * with hbalock held and requests HBA to quiesce DMAs before a reset.
James Smarte59058c2008-08-24 21:49:00 -04004000 **/
James Smart2e0fef82007-06-17 19:56:36 -05004001void lpfc_reset_barrier(struct lpfc_hba *phba)
James Smart92908312006-03-07 15:04:13 -05004002{
James Smart65a29c12006-07-06 15:50:50 -04004003 uint32_t __iomem *resp_buf;
4004 uint32_t __iomem *mbox_buf;
James Smart92908312006-03-07 15:04:13 -05004005 volatile uint32_t mbox;
James Smart9940b972011-03-11 16:06:12 -05004006 uint32_t hc_copy, ha_copy, resp_data;
James Smart92908312006-03-07 15:04:13 -05004007 int i;
4008 uint8_t hdrtype;
4009
Johannes Thumshirn1c2ba472016-01-20 16:22:22 +01004010 lockdep_assert_held(&phba->hbalock);
4011
James Smart92908312006-03-07 15:04:13 -05004012 pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
4013 if (hdrtype != 0x80 ||
4014 (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID &&
4015 FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID))
4016 return;
4017
4018 /*
4019 * Tell the other part of the chip to suspend temporarily all
4020 * its DMA activity.
4021 */
James Smart65a29c12006-07-06 15:50:50 -04004022 resp_buf = phba->MBslimaddr;
James Smart92908312006-03-07 15:04:13 -05004023
4024 /* Disable the error attention */
James Smart9940b972011-03-11 16:06:12 -05004025 if (lpfc_readl(phba->HCregaddr, &hc_copy))
4026 return;
James Smart92908312006-03-07 15:04:13 -05004027 writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr);
4028 readl(phba->HCregaddr); /* flush */
James Smart2e0fef82007-06-17 19:56:36 -05004029 phba->link_flag |= LS_IGNORE_ERATT;
James Smart92908312006-03-07 15:04:13 -05004030
James Smart9940b972011-03-11 16:06:12 -05004031 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4032 return;
4033 if (ha_copy & HA_ERATT) {
James Smart92908312006-03-07 15:04:13 -05004034 /* Clear Chip error bit */
4035 writel(HA_ERATT, phba->HAregaddr);
James Smart2e0fef82007-06-17 19:56:36 -05004036 phba->pport->stopped = 1;
James Smart92908312006-03-07 15:04:13 -05004037 }
4038
4039 mbox = 0;
4040 ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD;
4041 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP;
4042
4043 writel(BARRIER_TEST_PATTERN, (resp_buf + 1));
James Smart65a29c12006-07-06 15:50:50 -04004044 mbox_buf = phba->MBslimaddr;
James Smart92908312006-03-07 15:04:13 -05004045 writel(mbox, mbox_buf);
4046
James Smart9940b972011-03-11 16:06:12 -05004047 for (i = 0; i < 50; i++) {
4048 if (lpfc_readl((resp_buf + 1), &resp_data))
4049 return;
4050 if (resp_data != ~(BARRIER_TEST_PATTERN))
4051 mdelay(1);
4052 else
4053 break;
4054 }
4055 resp_data = 0;
4056 if (lpfc_readl((resp_buf + 1), &resp_data))
4057 return;
4058 if (resp_data != ~(BARRIER_TEST_PATTERN)) {
James Smartf4b4c682009-05-22 14:53:12 -04004059 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE ||
James Smart2e0fef82007-06-17 19:56:36 -05004060 phba->pport->stopped)
James Smart92908312006-03-07 15:04:13 -05004061 goto restore_hc;
4062 else
4063 goto clear_errat;
4064 }
4065
4066 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST;
James Smart9940b972011-03-11 16:06:12 -05004067 resp_data = 0;
4068 for (i = 0; i < 500; i++) {
4069 if (lpfc_readl(resp_buf, &resp_data))
4070 return;
4071 if (resp_data != mbox)
4072 mdelay(1);
4073 else
4074 break;
4075 }
James Smart92908312006-03-07 15:04:13 -05004076
4077clear_errat:
4078
James Smart9940b972011-03-11 16:06:12 -05004079 while (++i < 500) {
4080 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4081 return;
4082 if (!(ha_copy & HA_ERATT))
4083 mdelay(1);
4084 else
4085 break;
4086 }
James Smart92908312006-03-07 15:04:13 -05004087
4088 if (readl(phba->HAregaddr) & HA_ERATT) {
4089 writel(HA_ERATT, phba->HAregaddr);
James Smart2e0fef82007-06-17 19:56:36 -05004090 phba->pport->stopped = 1;
James Smart92908312006-03-07 15:04:13 -05004091 }
4092
4093restore_hc:
James Smart2e0fef82007-06-17 19:56:36 -05004094 phba->link_flag &= ~LS_IGNORE_ERATT;
James Smart92908312006-03-07 15:04:13 -05004095 writel(hc_copy, phba->HCregaddr);
4096 readl(phba->HCregaddr); /* flush */
4097}
4098
James Smarte59058c2008-08-24 21:49:00 -04004099/**
James Smart3621a712009-04-06 18:47:14 -04004100 * lpfc_sli_brdkill - Issue a kill_board mailbox command
James Smarte59058c2008-08-24 21:49:00 -04004101 * @phba: Pointer to HBA context object.
4102 *
4103 * This function issues a kill_board mailbox command and waits for
4104 * the error attention interrupt. This function is called for stopping
4105 * the firmware processing. The caller is not required to hold any
4106 * locks. This function calls lpfc_hba_down_post function to free
4107 * any pending commands after the kill. The function will return 1 when it
4108 * fails to kill the board else will return 0.
4109 **/
Jamie Wellnitz41415862006-02-28 19:25:27 -05004110int
James Smart2e0fef82007-06-17 19:56:36 -05004111lpfc_sli_brdkill(struct lpfc_hba *phba)
dea31012005-04-17 16:05:31 -05004112{
Jamie Wellnitz41415862006-02-28 19:25:27 -05004113 struct lpfc_sli *psli;
4114 LPFC_MBOXQ_t *pmb;
4115 uint32_t status;
4116 uint32_t ha_copy;
4117 int retval;
4118 int i = 0;
4119
4120 psli = &phba->sli;
4121
4122 /* Kill HBA */
James Smarted957682007-06-17 19:56:37 -05004123 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04004124 "0329 Kill HBA Data: x%x x%x\n",
4125 phba->pport->port_state, psli->sli_flag);
Jamie Wellnitz41415862006-02-28 19:25:27 -05004126
James Smart98c9ea52007-10-27 13:37:33 -04004127 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4128 if (!pmb)
Jamie Wellnitz41415862006-02-28 19:25:27 -05004129 return 1;
Jamie Wellnitz41415862006-02-28 19:25:27 -05004130
4131 /* Disable the error attention */
James Smart2e0fef82007-06-17 19:56:36 -05004132 spin_lock_irq(&phba->hbalock);
James Smart9940b972011-03-11 16:06:12 -05004133 if (lpfc_readl(phba->HCregaddr, &status)) {
4134 spin_unlock_irq(&phba->hbalock);
4135 mempool_free(pmb, phba->mbox_mem_pool);
4136 return 1;
4137 }
Jamie Wellnitz41415862006-02-28 19:25:27 -05004138 status &= ~HC_ERINT_ENA;
4139 writel(status, phba->HCregaddr);
4140 readl(phba->HCregaddr); /* flush */
James Smart2e0fef82007-06-17 19:56:36 -05004141 phba->link_flag |= LS_IGNORE_ERATT;
4142 spin_unlock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05004143
4144 lpfc_kill_board(phba, pmb);
4145 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4146 retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4147
4148 if (retval != MBX_SUCCESS) {
4149 if (retval != MBX_BUSY)
4150 mempool_free(pmb, phba->mbox_mem_pool);
James Smarte40a02c2010-02-26 14:13:54 -05004151 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4152 "2752 KILL_BOARD command failed retval %d\n",
4153 retval);
James Smart2e0fef82007-06-17 19:56:36 -05004154 spin_lock_irq(&phba->hbalock);
4155 phba->link_flag &= ~LS_IGNORE_ERATT;
4156 spin_unlock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05004157 return 1;
4158 }
4159
James Smartf4b4c682009-05-22 14:53:12 -04004160 spin_lock_irq(&phba->hbalock);
4161 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
4162 spin_unlock_irq(&phba->hbalock);
James Smart92908312006-03-07 15:04:13 -05004163
Jamie Wellnitz41415862006-02-28 19:25:27 -05004164 mempool_free(pmb, phba->mbox_mem_pool);
4165
4166 /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
4167 * attention every 100ms for 3 seconds. If we don't get ERATT after
4168 * 3 seconds we still set HBA_ERROR state because the status of the
4169 * board is now undefined.
4170 */
James Smart9940b972011-03-11 16:06:12 -05004171 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4172 return 1;
Jamie Wellnitz41415862006-02-28 19:25:27 -05004173 while ((i++ < 30) && !(ha_copy & HA_ERATT)) {
4174 mdelay(100);
James Smart9940b972011-03-11 16:06:12 -05004175 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4176 return 1;
Jamie Wellnitz41415862006-02-28 19:25:27 -05004177 }
4178
4179 del_timer_sync(&psli->mbox_tmo);
James Smart92908312006-03-07 15:04:13 -05004180 if (ha_copy & HA_ERATT) {
4181 writel(HA_ERATT, phba->HAregaddr);
James Smart2e0fef82007-06-17 19:56:36 -05004182 phba->pport->stopped = 1;
James Smart92908312006-03-07 15:04:13 -05004183 }
James Smart2e0fef82007-06-17 19:56:36 -05004184 spin_lock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05004185 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
James Smart04c68492009-05-22 14:52:52 -04004186 psli->mbox_active = NULL;
James Smart2e0fef82007-06-17 19:56:36 -05004187 phba->link_flag &= ~LS_IGNORE_ERATT;
4188 spin_unlock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05004189
Jamie Wellnitz41415862006-02-28 19:25:27 -05004190 lpfc_hba_down_post(phba);
James Smart2e0fef82007-06-17 19:56:36 -05004191 phba->link_state = LPFC_HBA_ERROR;
Jamie Wellnitz41415862006-02-28 19:25:27 -05004192
James Smart2e0fef82007-06-17 19:56:36 -05004193 return ha_copy & HA_ERATT ? 0 : 1;
Jamie Wellnitz41415862006-02-28 19:25:27 -05004194}
4195
James Smarte59058c2008-08-24 21:49:00 -04004196/**
James Smart3772a992009-05-22 14:50:54 -04004197 * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
James Smarte59058c2008-08-24 21:49:00 -04004198 * @phba: Pointer to HBA context object.
4199 *
4200 * This function resets the HBA by writing HC_INITFF to the control
4201 * register. After the HBA resets, this function resets all the iocb ring
4202 * indices. This function disables PCI layer parity checking during
4203 * the reset.
4204 * This function returns 0 always.
4205 * The caller is not required to hold any locks.
4206 **/
Jamie Wellnitz41415862006-02-28 19:25:27 -05004207int
James Smart2e0fef82007-06-17 19:56:36 -05004208lpfc_sli_brdreset(struct lpfc_hba *phba)
Jamie Wellnitz41415862006-02-28 19:25:27 -05004209{
4210 struct lpfc_sli *psli;
dea31012005-04-17 16:05:31 -05004211 struct lpfc_sli_ring *pring;
Jamie Wellnitz41415862006-02-28 19:25:27 -05004212 uint16_t cfg_value;
dea31012005-04-17 16:05:31 -05004213 int i;
dea31012005-04-17 16:05:31 -05004214
Jamie Wellnitz41415862006-02-28 19:25:27 -05004215 psli = &phba->sli;
dea31012005-04-17 16:05:31 -05004216
Jamie Wellnitz41415862006-02-28 19:25:27 -05004217 /* Reset HBA */
4218 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04004219 "0325 Reset HBA Data: x%x x%x\n",
James Smart4492b732017-04-27 15:08:26 -07004220 (phba->pport) ? phba->pport->port_state : 0,
4221 psli->sli_flag);
dea31012005-04-17 16:05:31 -05004222
4223 /* perform board reset */
4224 phba->fc_eventTag = 0;
James Smart4d9ab992009-10-02 15:16:39 -04004225 phba->link_events = 0;
James Smart4492b732017-04-27 15:08:26 -07004226 if (phba->pport) {
4227 phba->pport->fc_myDID = 0;
4228 phba->pport->fc_prevDID = 0;
4229 }
dea31012005-04-17 16:05:31 -05004230
Jamie Wellnitz41415862006-02-28 19:25:27 -05004231 /* Turn off parity checking and serr during the physical reset */
4232 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
4233 pci_write_config_word(phba->pcidev, PCI_COMMAND,
4234 (cfg_value &
4235 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
4236
James Smart3772a992009-05-22 14:50:54 -04004237 psli->sli_flag &= ~(LPFC_SLI_ACTIVE | LPFC_PROCESS_LA);
4238
Jamie Wellnitz41415862006-02-28 19:25:27 -05004239 /* Now toggle INITFF bit in the Host Control Register */
4240 writel(HC_INITFF, phba->HCregaddr);
4241 mdelay(1);
4242 readl(phba->HCregaddr); /* flush */
4243 writel(0, phba->HCregaddr);
4244 readl(phba->HCregaddr); /* flush */
4245
4246 /* Restore PCI cmd register */
4247 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
dea31012005-04-17 16:05:31 -05004248
4249 /* Initialize relevant SLI info */
Jamie Wellnitz41415862006-02-28 19:25:27 -05004250 for (i = 0; i < psli->num_rings; i++) {
James Smart895427b2017-02-12 13:52:30 -08004251 pring = &psli->sli3_ring[i];
dea31012005-04-17 16:05:31 -05004252 pring->flag = 0;
James Smart7e56aa22012-08-03 12:35:34 -04004253 pring->sli.sli3.rspidx = 0;
4254 pring->sli.sli3.next_cmdidx = 0;
4255 pring->sli.sli3.local_getidx = 0;
4256 pring->sli.sli3.cmdidx = 0;
dea31012005-04-17 16:05:31 -05004257 pring->missbufcnt = 0;
4258 }
dea31012005-04-17 16:05:31 -05004259
James Smart2e0fef82007-06-17 19:56:36 -05004260 phba->link_state = LPFC_WARM_START;
Jamie Wellnitz41415862006-02-28 19:25:27 -05004261 return 0;
4262}
4263
James Smarte59058c2008-08-24 21:49:00 -04004264/**
James Smartda0436e2009-05-22 14:51:39 -04004265 * lpfc_sli4_brdreset - Reset a sli-4 HBA
4266 * @phba: Pointer to HBA context object.
4267 *
4268 * This function resets a SLI4 HBA. This function disables PCI layer parity
4269 * checking during resets the device. The caller is not required to hold
4270 * any locks.
4271 *
4272 * This function returns 0 always.
4273 **/
4274int
4275lpfc_sli4_brdreset(struct lpfc_hba *phba)
4276{
4277 struct lpfc_sli *psli = &phba->sli;
4278 uint16_t cfg_value;
James Smart02936352014-04-04 13:52:12 -04004279 int rc = 0;
James Smartda0436e2009-05-22 14:51:39 -04004280
4281 /* Reset HBA */
4282 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smart02936352014-04-04 13:52:12 -04004283 "0295 Reset HBA Data: x%x x%x x%x\n",
4284 phba->pport->port_state, psli->sli_flag,
4285 phba->hba_flag);
James Smartda0436e2009-05-22 14:51:39 -04004286
4287 /* perform board reset */
4288 phba->fc_eventTag = 0;
James Smart4d9ab992009-10-02 15:16:39 -04004289 phba->link_events = 0;
James Smartda0436e2009-05-22 14:51:39 -04004290 phba->pport->fc_myDID = 0;
4291 phba->pport->fc_prevDID = 0;
4292
James Smartda0436e2009-05-22 14:51:39 -04004293 spin_lock_irq(&phba->hbalock);
4294 psli->sli_flag &= ~(LPFC_PROCESS_LA);
4295 phba->fcf.fcf_flag = 0;
James Smartda0436e2009-05-22 14:51:39 -04004296 spin_unlock_irq(&phba->hbalock);
4297
James Smart02936352014-04-04 13:52:12 -04004298 /* SLI4 INTF 2: if FW dump is being taken skip INIT_PORT */
4299 if (phba->hba_flag & HBA_FW_DUMP_OP) {
4300 phba->hba_flag &= ~HBA_FW_DUMP_OP;
4301 return rc;
4302 }
4303
James Smartda0436e2009-05-22 14:51:39 -04004304 /* Now physically reset the device */
4305 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4306 "0389 Performing PCI function reset!\n");
James Smartbe858b62010-12-15 17:57:20 -05004307
4308 /* Turn off parity checking and serr during the physical reset */
4309 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
4310 pci_write_config_word(phba->pcidev, PCI_COMMAND, (cfg_value &
4311 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
4312
James Smart88318812012-09-29 11:29:29 -04004313 /* Perform FCoE PCI function reset before freeing queue memory */
James Smart27b01b82012-05-09 21:19:44 -04004314 rc = lpfc_pci_function_reset(phba);
James Smartda0436e2009-05-22 14:51:39 -04004315
James Smartbe858b62010-12-15 17:57:20 -05004316 /* Restore PCI cmd register */
4317 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
4318
James Smart27b01b82012-05-09 21:19:44 -04004319 return rc;
James Smartda0436e2009-05-22 14:51:39 -04004320}
4321
4322/**
4323 * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
James Smarte59058c2008-08-24 21:49:00 -04004324 * @phba: Pointer to HBA context object.
4325 *
4326 * This function is called in the SLI initialization code path to
4327 * restart the HBA. The caller is not required to hold any lock.
4328 * This function writes MBX_RESTART mailbox command to the SLIM and
4329 * resets the HBA. At the end of the function, it calls lpfc_hba_down_post
4330 * function to free any pending commands. The function enables
4331 * POST only during the first initialization. The function returns zero.
4332 * The function does not guarantee completion of MBX_RESTART mailbox
4333 * command before the return of this function.
4334 **/
James Smartda0436e2009-05-22 14:51:39 -04004335static int
4336lpfc_sli_brdrestart_s3(struct lpfc_hba *phba)
Jamie Wellnitz41415862006-02-28 19:25:27 -05004337{
4338 MAILBOX_t *mb;
4339 struct lpfc_sli *psli;
Jamie Wellnitz41415862006-02-28 19:25:27 -05004340 volatile uint32_t word0;
4341 void __iomem *to_slim;
James Smart0d878412009-10-02 15:16:56 -04004342 uint32_t hba_aer_enabled;
Jamie Wellnitz41415862006-02-28 19:25:27 -05004343
James Smart2e0fef82007-06-17 19:56:36 -05004344 spin_lock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05004345
James Smart0d878412009-10-02 15:16:56 -04004346 /* Take PCIe device Advanced Error Reporting (AER) state */
4347 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4348
Jamie Wellnitz41415862006-02-28 19:25:27 -05004349 psli = &phba->sli;
4350
4351 /* Restart HBA */
4352 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04004353 "0337 Restart HBA Data: x%x x%x\n",
James Smart4492b732017-04-27 15:08:26 -07004354 (phba->pport) ? phba->pport->port_state : 0,
4355 psli->sli_flag);
Jamie Wellnitz41415862006-02-28 19:25:27 -05004356
4357 word0 = 0;
4358 mb = (MAILBOX_t *) &word0;
4359 mb->mbxCommand = MBX_RESTART;
4360 mb->mbxHc = 1;
4361
James Smart92908312006-03-07 15:04:13 -05004362 lpfc_reset_barrier(phba);
4363
Jamie Wellnitz41415862006-02-28 19:25:27 -05004364 to_slim = phba->MBslimaddr;
4365 writel(*(uint32_t *) mb, to_slim);
4366 readl(to_slim); /* flush */
4367
4368 /* Only skip post after fc_ffinit is completed */
James Smart4492b732017-04-27 15:08:26 -07004369 if (phba->pport && phba->pport->port_state)
Jamie Wellnitz41415862006-02-28 19:25:27 -05004370 word0 = 1; /* This is really setting up word1 */
James Smarteaf15d52008-12-04 22:39:29 -05004371 else
Jamie Wellnitz41415862006-02-28 19:25:27 -05004372 word0 = 0; /* This is really setting up word1 */
James Smart65a29c12006-07-06 15:50:50 -04004373 to_slim = phba->MBslimaddr + sizeof (uint32_t);
Jamie Wellnitz41415862006-02-28 19:25:27 -05004374 writel(*(uint32_t *) mb, to_slim);
4375 readl(to_slim); /* flush */
4376
4377 lpfc_sli_brdreset(phba);
James Smart4492b732017-04-27 15:08:26 -07004378 if (phba->pport)
4379 phba->pport->stopped = 0;
James Smart2e0fef82007-06-17 19:56:36 -05004380 phba->link_state = LPFC_INIT_START;
James Smartda0436e2009-05-22 14:51:39 -04004381 phba->hba_flag = 0;
James Smart2e0fef82007-06-17 19:56:36 -05004382 spin_unlock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05004383
James Smart64ba8812006-08-02 15:24:34 -04004384 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4385 psli->stats_start = get_seconds();
4386
James Smarteaf15d52008-12-04 22:39:29 -05004387 /* Give the INITFF and Post time to settle. */
4388 mdelay(100);
dea31012005-04-17 16:05:31 -05004389
James Smart0d878412009-10-02 15:16:56 -04004390 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4391 if (hba_aer_enabled)
4392 pci_disable_pcie_error_reporting(phba->pcidev);
4393
Jamie Wellnitz41415862006-02-28 19:25:27 -05004394 lpfc_hba_down_post(phba);
dea31012005-04-17 16:05:31 -05004395
4396 return 0;
4397}
4398
James Smarte59058c2008-08-24 21:49:00 -04004399/**
James Smartda0436e2009-05-22 14:51:39 -04004400 * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba
4401 * @phba: Pointer to HBA context object.
4402 *
4403 * This function is called in the SLI initialization code path to restart
4404 * a SLI4 HBA. The caller is not required to hold any lock.
4405 * At the end of the function, it calls lpfc_hba_down_post function to
4406 * free any pending commands.
4407 **/
4408static int
4409lpfc_sli_brdrestart_s4(struct lpfc_hba *phba)
4410{
4411 struct lpfc_sli *psli = &phba->sli;
James Smart75baf692010-06-08 18:31:21 -04004412 uint32_t hba_aer_enabled;
James Smart27b01b82012-05-09 21:19:44 -04004413 int rc;
James Smartda0436e2009-05-22 14:51:39 -04004414
4415 /* Restart HBA */
4416 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4417 "0296 Restart HBA Data: x%x x%x\n",
4418 phba->pport->port_state, psli->sli_flag);
4419
James Smart75baf692010-06-08 18:31:21 -04004420 /* Take PCIe device Advanced Error Reporting (AER) state */
4421 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4422
James Smart27b01b82012-05-09 21:19:44 -04004423 rc = lpfc_sli4_brdreset(phba);
James Smartda0436e2009-05-22 14:51:39 -04004424
4425 spin_lock_irq(&phba->hbalock);
4426 phba->pport->stopped = 0;
4427 phba->link_state = LPFC_INIT_START;
4428 phba->hba_flag = 0;
4429 spin_unlock_irq(&phba->hbalock);
4430
4431 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4432 psli->stats_start = get_seconds();
4433
James Smart75baf692010-06-08 18:31:21 -04004434 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4435 if (hba_aer_enabled)
4436 pci_disable_pcie_error_reporting(phba->pcidev);
4437
James Smartda0436e2009-05-22 14:51:39 -04004438 lpfc_hba_down_post(phba);
James Smart569dbe82017-06-15 22:56:47 -07004439 lpfc_sli4_queue_destroy(phba);
James Smartda0436e2009-05-22 14:51:39 -04004440
James Smart27b01b82012-05-09 21:19:44 -04004441 return rc;
James Smartda0436e2009-05-22 14:51:39 -04004442}
4443
4444/**
4445 * lpfc_sli_brdrestart - Wrapper func for restarting hba
4446 * @phba: Pointer to HBA context object.
4447 *
4448 * This routine wraps the actual SLI3 or SLI4 hba restart routine from the
4449 * API jump table function pointer from the lpfc_hba struct.
4450**/
4451int
4452lpfc_sli_brdrestart(struct lpfc_hba *phba)
4453{
4454 return phba->lpfc_sli_brdrestart(phba);
4455}
4456
4457/**
James Smart3621a712009-04-06 18:47:14 -04004458 * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
James Smarte59058c2008-08-24 21:49:00 -04004459 * @phba: Pointer to HBA context object.
4460 *
4461 * This function is called after a HBA restart to wait for successful
4462 * restart of the HBA. Successful restart of the HBA is indicated by
4463 * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
4464 * iteration, the function will restart the HBA again. The function returns
4465 * zero if HBA successfully restarted else returns negative error code.
4466 **/
James Smart4492b732017-04-27 15:08:26 -07004467int
dea31012005-04-17 16:05:31 -05004468lpfc_sli_chipset_init(struct lpfc_hba *phba)
4469{
4470 uint32_t status, i = 0;
4471
4472 /* Read the HBA Host Status Register */
James Smart9940b972011-03-11 16:06:12 -05004473 if (lpfc_readl(phba->HSregaddr, &status))
4474 return -EIO;
dea31012005-04-17 16:05:31 -05004475
4476 /* Check status register to see what current state is */
4477 i = 0;
4478 while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) {
4479
James Smartdcf2a4e2010-09-29 11:18:53 -04004480 /* Check every 10ms for 10 retries, then every 100ms for 90
4481 * retries, then every 1 sec for 50 retires for a total of
4482 * ~60 seconds before reset the board again and check every
4483 * 1 sec for 50 retries. The up to 60 seconds before the
4484 * board ready is required by the Falcon FIPS zeroization
4485 * complete, and any reset the board in between shall cause
4486 * restart of zeroization, further delay the board ready.
dea31012005-04-17 16:05:31 -05004487 */
James Smartdcf2a4e2010-09-29 11:18:53 -04004488 if (i++ >= 200) {
dea31012005-04-17 16:05:31 -05004489 /* Adapter failed to init, timeout, status reg
4490 <status> */
James Smarted957682007-06-17 19:56:37 -05004491 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04004492 "0436 Adapter failed to init, "
James Smart09372822008-01-11 01:52:54 -05004493 "timeout, status reg x%x, "
4494 "FW Data: A8 x%x AC x%x\n", status,
4495 readl(phba->MBslimaddr + 0xa8),
4496 readl(phba->MBslimaddr + 0xac));
James Smart2e0fef82007-06-17 19:56:36 -05004497 phba->link_state = LPFC_HBA_ERROR;
dea31012005-04-17 16:05:31 -05004498 return -ETIMEDOUT;
4499 }
4500
4501 /* Check to see if any errors occurred during init */
4502 if (status & HS_FFERM) {
4503 /* ERROR: During chipset initialization */
4504 /* Adapter failed to init, chipset, status reg
4505 <status> */
James Smarted957682007-06-17 19:56:37 -05004506 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04004507 "0437 Adapter failed to init, "
James Smart09372822008-01-11 01:52:54 -05004508 "chipset, status reg x%x, "
4509 "FW Data: A8 x%x AC x%x\n", status,
4510 readl(phba->MBslimaddr + 0xa8),
4511 readl(phba->MBslimaddr + 0xac));
James Smart2e0fef82007-06-17 19:56:36 -05004512 phba->link_state = LPFC_HBA_ERROR;
dea31012005-04-17 16:05:31 -05004513 return -EIO;
4514 }
4515
James Smartdcf2a4e2010-09-29 11:18:53 -04004516 if (i <= 10)
dea31012005-04-17 16:05:31 -05004517 msleep(10);
James Smartdcf2a4e2010-09-29 11:18:53 -04004518 else if (i <= 100)
4519 msleep(100);
4520 else
4521 msleep(1000);
dea31012005-04-17 16:05:31 -05004522
James Smartdcf2a4e2010-09-29 11:18:53 -04004523 if (i == 150) {
4524 /* Do post */
James Smart92d7f7b2007-06-17 19:56:38 -05004525 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
Jamie Wellnitz41415862006-02-28 19:25:27 -05004526 lpfc_sli_brdrestart(phba);
dea31012005-04-17 16:05:31 -05004527 }
4528 /* Read the HBA Host Status Register */
James Smart9940b972011-03-11 16:06:12 -05004529 if (lpfc_readl(phba->HSregaddr, &status))
4530 return -EIO;
dea31012005-04-17 16:05:31 -05004531 }
4532
4533 /* Check to see if any errors occurred during init */
4534 if (status & HS_FFERM) {
4535 /* ERROR: During chipset initialization */
4536 /* Adapter failed to init, chipset, status reg <status> */
James Smarted957682007-06-17 19:56:37 -05004537 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04004538 "0438 Adapter failed to init, chipset, "
James Smart09372822008-01-11 01:52:54 -05004539 "status reg x%x, "
4540 "FW Data: A8 x%x AC x%x\n", status,
4541 readl(phba->MBslimaddr + 0xa8),
4542 readl(phba->MBslimaddr + 0xac));
James Smart2e0fef82007-06-17 19:56:36 -05004543 phba->link_state = LPFC_HBA_ERROR;
dea31012005-04-17 16:05:31 -05004544 return -EIO;
4545 }
4546
4547 /* Clear all interrupt enable conditions */
4548 writel(0, phba->HCregaddr);
4549 readl(phba->HCregaddr); /* flush */
4550
4551 /* setup host attn register */
4552 writel(0xffffffff, phba->HAregaddr);
4553 readl(phba->HAregaddr); /* flush */
4554 return 0;
4555}
4556
James Smarte59058c2008-08-24 21:49:00 -04004557/**
James Smart3621a712009-04-06 18:47:14 -04004558 * lpfc_sli_hbq_count - Get the number of HBQs to be configured
James Smarte59058c2008-08-24 21:49:00 -04004559 *
4560 * This function calculates and returns the number of HBQs required to be
4561 * configured.
4562 **/
James Smart78b2d852007-08-02 11:10:21 -04004563int
James Smarted957682007-06-17 19:56:37 -05004564lpfc_sli_hbq_count(void)
4565{
James Smart92d7f7b2007-06-17 19:56:38 -05004566 return ARRAY_SIZE(lpfc_hbq_defs);
James Smarted957682007-06-17 19:56:37 -05004567}
4568
James Smarte59058c2008-08-24 21:49:00 -04004569/**
James Smart3621a712009-04-06 18:47:14 -04004570 * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
James Smarte59058c2008-08-24 21:49:00 -04004571 *
4572 * This function adds the number of hbq entries in every HBQ to get
4573 * the total number of hbq entries required for the HBA and returns
4574 * the total count.
4575 **/
James Smarted957682007-06-17 19:56:37 -05004576static int
4577lpfc_sli_hbq_entry_count(void)
4578{
4579 int hbq_count = lpfc_sli_hbq_count();
4580 int count = 0;
4581 int i;
4582
4583 for (i = 0; i < hbq_count; ++i)
James Smart92d7f7b2007-06-17 19:56:38 -05004584 count += lpfc_hbq_defs[i]->entry_count;
James Smarted957682007-06-17 19:56:37 -05004585 return count;
4586}
4587
James Smarte59058c2008-08-24 21:49:00 -04004588/**
James Smart3621a712009-04-06 18:47:14 -04004589 * lpfc_sli_hbq_size - Calculate memory required for all hbq entries
James Smarte59058c2008-08-24 21:49:00 -04004590 *
4591 * This function calculates amount of memory required for all hbq entries
4592 * to be configured and returns the total memory required.
4593 **/
dea31012005-04-17 16:05:31 -05004594int
James Smarted957682007-06-17 19:56:37 -05004595lpfc_sli_hbq_size(void)
4596{
4597 return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry);
4598}
4599
James Smarte59058c2008-08-24 21:49:00 -04004600/**
James Smart3621a712009-04-06 18:47:14 -04004601 * lpfc_sli_hbq_setup - configure and initialize HBQs
James Smarte59058c2008-08-24 21:49:00 -04004602 * @phba: Pointer to HBA context object.
4603 *
4604 * This function is called during the SLI initialization to configure
4605 * all the HBQs and post buffers to the HBQ. The caller is not
4606 * required to hold any locks. This function will return zero if successful
4607 * else it will return negative error code.
4608 **/
James Smarted957682007-06-17 19:56:37 -05004609static int
4610lpfc_sli_hbq_setup(struct lpfc_hba *phba)
4611{
4612 int hbq_count = lpfc_sli_hbq_count();
4613 LPFC_MBOXQ_t *pmb;
4614 MAILBOX_t *pmbox;
4615 uint32_t hbqno;
4616 uint32_t hbq_entry_index;
James Smarted957682007-06-17 19:56:37 -05004617
James Smart92d7f7b2007-06-17 19:56:38 -05004618 /* Get a Mailbox buffer to setup mailbox
4619 * commands for HBA initialization
4620 */
James Smarted957682007-06-17 19:56:37 -05004621 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4622
4623 if (!pmb)
4624 return -ENOMEM;
4625
James Smart04c68492009-05-22 14:52:52 -04004626 pmbox = &pmb->u.mb;
James Smarted957682007-06-17 19:56:37 -05004627
4628 /* Initialize the struct lpfc_sli_hbq structure for each hbq */
4629 phba->link_state = LPFC_INIT_MBX_CMDS;
James Smart3163f722008-02-08 18:50:25 -05004630 phba->hbq_in_use = 1;
James Smarted957682007-06-17 19:56:37 -05004631
4632 hbq_entry_index = 0;
4633 for (hbqno = 0; hbqno < hbq_count; ++hbqno) {
4634 phba->hbqs[hbqno].next_hbqPutIdx = 0;
4635 phba->hbqs[hbqno].hbqPutIdx = 0;
4636 phba->hbqs[hbqno].local_hbqGetIdx = 0;
4637 phba->hbqs[hbqno].entry_count =
James Smart92d7f7b2007-06-17 19:56:38 -05004638 lpfc_hbq_defs[hbqno]->entry_count;
James Smart51ef4c22007-08-02 11:10:31 -04004639 lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno],
4640 hbq_entry_index, pmb);
James Smarted957682007-06-17 19:56:37 -05004641 hbq_entry_index += phba->hbqs[hbqno].entry_count;
4642
4643 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
4644 /* Adapter failed to init, mbxCmd <cmd> CFG_RING,
4645 mbxStatus <status>, ring <num> */
4646
4647 lpfc_printf_log(phba, KERN_ERR,
James Smart92d7f7b2007-06-17 19:56:38 -05004648 LOG_SLI | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04004649 "1805 Adapter failed to init. "
James Smarted957682007-06-17 19:56:37 -05004650 "Data: x%x x%x x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04004651 pmbox->mbxCommand,
James Smarted957682007-06-17 19:56:37 -05004652 pmbox->mbxStatus, hbqno);
4653
4654 phba->link_state = LPFC_HBA_ERROR;
4655 mempool_free(pmb, phba->mbox_mem_pool);
James Smart6e7288d2010-06-07 15:23:35 -04004656 return -ENXIO;
James Smarted957682007-06-17 19:56:37 -05004657 }
4658 }
4659 phba->hbq_count = hbq_count;
4660
James Smarted957682007-06-17 19:56:37 -05004661 mempool_free(pmb, phba->mbox_mem_pool);
4662
James Smart92d7f7b2007-06-17 19:56:38 -05004663 /* Initially populate or replenish the HBQs */
James Smartd7c255b2008-08-24 21:50:00 -04004664 for (hbqno = 0; hbqno < hbq_count; ++hbqno)
4665 lpfc_sli_hbqbuf_init_hbqs(phba, hbqno);
James Smarted957682007-06-17 19:56:37 -05004666 return 0;
4667}
4668
James Smarte59058c2008-08-24 21:49:00 -04004669/**
James Smart4f774512009-05-22 14:52:35 -04004670 * lpfc_sli4_rb_setup - Initialize and post RBs to HBA
4671 * @phba: Pointer to HBA context object.
4672 *
4673 * This function is called during the SLI initialization to configure
4674 * all the HBQs and post buffers to the HBQ. The caller is not
4675 * required to hold any locks. This function will return zero if successful
4676 * else it will return negative error code.
4677 **/
4678static int
4679lpfc_sli4_rb_setup(struct lpfc_hba *phba)
4680{
4681 phba->hbq_in_use = 1;
James Smart895427b2017-02-12 13:52:30 -08004682 phba->hbqs[LPFC_ELS_HBQ].entry_count =
4683 lpfc_hbq_defs[LPFC_ELS_HBQ]->entry_count;
James Smart4f774512009-05-22 14:52:35 -04004684 phba->hbq_count = 1;
James Smart895427b2017-02-12 13:52:30 -08004685 lpfc_sli_hbqbuf_init_hbqs(phba, LPFC_ELS_HBQ);
James Smart4f774512009-05-22 14:52:35 -04004686 /* Initially populate or replenish the HBQs */
James Smart4f774512009-05-22 14:52:35 -04004687 return 0;
4688}
4689
4690/**
James Smart3621a712009-04-06 18:47:14 -04004691 * lpfc_sli_config_port - Issue config port mailbox command
James Smarte59058c2008-08-24 21:49:00 -04004692 * @phba: Pointer to HBA context object.
4693 * @sli_mode: sli mode - 2/3
4694 *
Masahiro Yamada183b8022017-02-27 14:29:20 -08004695 * This function is called by the sli initialization code path
James Smarte59058c2008-08-24 21:49:00 -04004696 * to issue config_port mailbox command. This function restarts the
4697 * HBA firmware and issues a config_port mailbox command to configure
4698 * the SLI interface in the sli mode specified by sli_mode
4699 * variable. The caller is not required to hold any locks.
4700 * The function returns 0 if successful, else returns negative error
4701 * code.
4702 **/
James Smart93996272008-08-24 21:50:30 -04004703int
4704lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
dea31012005-04-17 16:05:31 -05004705{
4706 LPFC_MBOXQ_t *pmb;
4707 uint32_t resetcount = 0, rc = 0, done = 0;
4708
4709 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4710 if (!pmb) {
James Smart2e0fef82007-06-17 19:56:36 -05004711 phba->link_state = LPFC_HBA_ERROR;
dea31012005-04-17 16:05:31 -05004712 return -ENOMEM;
4713 }
4714
James Smarted957682007-06-17 19:56:37 -05004715 phba->sli_rev = sli_mode;
dea31012005-04-17 16:05:31 -05004716 while (resetcount < 2 && !done) {
James Smart2e0fef82007-06-17 19:56:36 -05004717 spin_lock_irq(&phba->hbalock);
James Smart1c067a42006-08-01 07:33:52 -04004718 phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
James Smart2e0fef82007-06-17 19:56:36 -05004719 spin_unlock_irq(&phba->hbalock);
James Smart92d7f7b2007-06-17 19:56:38 -05004720 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
Jamie Wellnitz41415862006-02-28 19:25:27 -05004721 lpfc_sli_brdrestart(phba);
dea31012005-04-17 16:05:31 -05004722 rc = lpfc_sli_chipset_init(phba);
4723 if (rc)
4724 break;
4725
James Smart2e0fef82007-06-17 19:56:36 -05004726 spin_lock_irq(&phba->hbalock);
James Smart1c067a42006-08-01 07:33:52 -04004727 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
James Smart2e0fef82007-06-17 19:56:36 -05004728 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05004729 resetcount++;
4730
James Smarted957682007-06-17 19:56:37 -05004731 /* Call pre CONFIG_PORT mailbox command initialization. A
4732 * value of 0 means the call was successful. Any other
4733 * nonzero value is a failure, but if ERESTART is returned,
4734 * the driver may reset the HBA and try again.
4735 */
dea31012005-04-17 16:05:31 -05004736 rc = lpfc_config_port_prep(phba);
4737 if (rc == -ERESTART) {
James Smarted957682007-06-17 19:56:37 -05004738 phba->link_state = LPFC_LINK_UNKNOWN;
dea31012005-04-17 16:05:31 -05004739 continue;
James Smart34b02dc2008-08-24 21:49:55 -04004740 } else if (rc)
dea31012005-04-17 16:05:31 -05004741 break;
James Smart6d368e52011-05-24 11:44:12 -04004742
James Smart2e0fef82007-06-17 19:56:36 -05004743 phba->link_state = LPFC_INIT_MBX_CMDS;
dea31012005-04-17 16:05:31 -05004744 lpfc_config_port(phba, pmb);
4745 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
James Smart34b02dc2008-08-24 21:49:55 -04004746 phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED |
4747 LPFC_SLI3_HBQ_ENABLED |
4748 LPFC_SLI3_CRP_ENABLED |
James Smartbc739052010-08-04 16:11:18 -04004749 LPFC_SLI3_BG_ENABLED |
4750 LPFC_SLI3_DSS_ENABLED);
James Smarted957682007-06-17 19:56:37 -05004751 if (rc != MBX_SUCCESS) {
dea31012005-04-17 16:05:31 -05004752 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04004753 "0442 Adapter failed to init, mbxCmd x%x "
James Smart92d7f7b2007-06-17 19:56:38 -05004754 "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
James Smart04c68492009-05-22 14:52:52 -04004755 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus, 0);
James Smart2e0fef82007-06-17 19:56:36 -05004756 spin_lock_irq(&phba->hbalock);
James Smart04c68492009-05-22 14:52:52 -04004757 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
James Smart2e0fef82007-06-17 19:56:36 -05004758 spin_unlock_irq(&phba->hbalock);
4759 rc = -ENXIO;
James Smart04c68492009-05-22 14:52:52 -04004760 } else {
4761 /* Allow asynchronous mailbox command to go through */
4762 spin_lock_irq(&phba->hbalock);
4763 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
4764 spin_unlock_irq(&phba->hbalock);
James Smarted957682007-06-17 19:56:37 -05004765 done = 1;
James Smartcb69f7d2011-12-13 13:21:57 -05004766
4767 if ((pmb->u.mb.un.varCfgPort.casabt == 1) &&
4768 (pmb->u.mb.un.varCfgPort.gasabt == 0))
4769 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4770 "3110 Port did not grant ASABT\n");
James Smart04c68492009-05-22 14:52:52 -04004771 }
dea31012005-04-17 16:05:31 -05004772 }
James Smarted957682007-06-17 19:56:37 -05004773 if (!done) {
4774 rc = -EINVAL;
4775 goto do_prep_failed;
4776 }
James Smart04c68492009-05-22 14:52:52 -04004777 if (pmb->u.mb.un.varCfgPort.sli_mode == 3) {
4778 if (!pmb->u.mb.un.varCfgPort.cMA) {
James Smart34b02dc2008-08-24 21:49:55 -04004779 rc = -ENXIO;
4780 goto do_prep_failed;
4781 }
James Smart04c68492009-05-22 14:52:52 -04004782 if (phba->max_vpi && pmb->u.mb.un.varCfgPort.gmv) {
James Smart34b02dc2008-08-24 21:49:55 -04004783 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
James Smart04c68492009-05-22 14:52:52 -04004784 phba->max_vpi = pmb->u.mb.un.varCfgPort.max_vpi;
4785 phba->max_vports = (phba->max_vpi > phba->max_vports) ?
4786 phba->max_vpi : phba->max_vports;
4787
James Smart34b02dc2008-08-24 21:49:55 -04004788 } else
4789 phba->max_vpi = 0;
James Smartbc739052010-08-04 16:11:18 -04004790 phba->fips_level = 0;
4791 phba->fips_spec_rev = 0;
4792 if (pmb->u.mb.un.varCfgPort.gdss) {
James Smart04c68492009-05-22 14:52:52 -04004793 phba->sli3_options |= LPFC_SLI3_DSS_ENABLED;
James Smartbc739052010-08-04 16:11:18 -04004794 phba->fips_level = pmb->u.mb.un.varCfgPort.fips_level;
4795 phba->fips_spec_rev = pmb->u.mb.un.varCfgPort.fips_rev;
4796 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4797 "2850 Security Crypto Active. FIPS x%d "
4798 "(Spec Rev: x%d)",
4799 phba->fips_level, phba->fips_spec_rev);
4800 }
4801 if (pmb->u.mb.un.varCfgPort.sec_err) {
4802 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4803 "2856 Config Port Security Crypto "
4804 "Error: x%x ",
4805 pmb->u.mb.un.varCfgPort.sec_err);
4806 }
James Smart04c68492009-05-22 14:52:52 -04004807 if (pmb->u.mb.un.varCfgPort.gerbm)
James Smart34b02dc2008-08-24 21:49:55 -04004808 phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED;
James Smart04c68492009-05-22 14:52:52 -04004809 if (pmb->u.mb.un.varCfgPort.gcrp)
James Smart34b02dc2008-08-24 21:49:55 -04004810 phba->sli3_options |= LPFC_SLI3_CRP_ENABLED;
James Smart6e7288d2010-06-07 15:23:35 -04004811
4812 phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get;
4813 phba->port_gp = phba->mbox->us.s3_pgp.port;
James Smarte2a0a9d2008-12-04 22:40:02 -05004814
4815 if (phba->cfg_enable_bg) {
James Smart04c68492009-05-22 14:52:52 -04004816 if (pmb->u.mb.un.varCfgPort.gbg)
James Smarte2a0a9d2008-12-04 22:40:02 -05004817 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
4818 else
4819 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4820 "0443 Adapter did not grant "
4821 "BlockGuard\n");
4822 }
James Smart34b02dc2008-08-24 21:49:55 -04004823 } else {
James Smart8f34f4c2008-12-04 22:39:23 -05004824 phba->hbq_get = NULL;
James Smart34b02dc2008-08-24 21:49:55 -04004825 phba->port_gp = phba->mbox->us.s2.port;
James Smartd7c255b2008-08-24 21:50:00 -04004826 phba->max_vpi = 0;
James Smarted957682007-06-17 19:56:37 -05004827 }
James Smart92d7f7b2007-06-17 19:56:38 -05004828do_prep_failed:
James Smarted957682007-06-17 19:56:37 -05004829 mempool_free(pmb, phba->mbox_mem_pool);
4830 return rc;
4831}
4832
James Smarte59058c2008-08-24 21:49:00 -04004833
4834/**
Masahiro Yamada183b8022017-02-27 14:29:20 -08004835 * lpfc_sli_hba_setup - SLI initialization function
James Smarte59058c2008-08-24 21:49:00 -04004836 * @phba: Pointer to HBA context object.
4837 *
Masahiro Yamada183b8022017-02-27 14:29:20 -08004838 * This function is the main SLI initialization function. This function
4839 * is called by the HBA initialization code, HBA reset code and HBA
James Smarte59058c2008-08-24 21:49:00 -04004840 * error attention handler code. Caller is not required to hold any
4841 * locks. This function issues config_port mailbox command to configure
4842 * the SLI, setup iocb rings and HBQ rings. In the end the function
4843 * calls the config_port_post function to issue init_link mailbox
4844 * command and to start the discovery. The function will return zero
4845 * if successful, else it will return negative error code.
4846 **/
James Smarted957682007-06-17 19:56:37 -05004847int
4848lpfc_sli_hba_setup(struct lpfc_hba *phba)
4849{
4850 uint32_t rc;
James Smart6d368e52011-05-24 11:44:12 -04004851 int mode = 3, i;
4852 int longs;
James Smarted957682007-06-17 19:56:37 -05004853
James Smart12247e82016-07-06 12:36:09 -07004854 switch (phba->cfg_sli_mode) {
James Smarted957682007-06-17 19:56:37 -05004855 case 2:
James Smart78b2d852007-08-02 11:10:21 -04004856 if (phba->cfg_enable_npiv) {
James Smart92d7f7b2007-06-17 19:56:38 -05004857 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
James Smart12247e82016-07-06 12:36:09 -07004858 "1824 NPIV enabled: Override sli_mode "
James Smart92d7f7b2007-06-17 19:56:38 -05004859 "parameter (%d) to auto (0).\n",
James Smart12247e82016-07-06 12:36:09 -07004860 phba->cfg_sli_mode);
James Smart92d7f7b2007-06-17 19:56:38 -05004861 break;
4862 }
James Smarted957682007-06-17 19:56:37 -05004863 mode = 2;
4864 break;
4865 case 0:
4866 case 3:
4867 break;
4868 default:
James Smart92d7f7b2007-06-17 19:56:38 -05004869 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
James Smart12247e82016-07-06 12:36:09 -07004870 "1819 Unrecognized sli_mode parameter: %d.\n",
4871 phba->cfg_sli_mode);
James Smarted957682007-06-17 19:56:37 -05004872
4873 break;
4874 }
James Smartb5c53952016-03-31 14:12:30 -07004875 phba->fcp_embed_io = 0; /* SLI4 FC support only */
James Smarted957682007-06-17 19:56:37 -05004876
James Smart93996272008-08-24 21:50:30 -04004877 rc = lpfc_sli_config_port(phba, mode);
4878
James Smart12247e82016-07-06 12:36:09 -07004879 if (rc && phba->cfg_sli_mode == 3)
James Smart92d7f7b2007-06-17 19:56:38 -05004880 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04004881 "1820 Unable to select SLI-3. "
4882 "Not supported by adapter.\n");
James Smarted957682007-06-17 19:56:37 -05004883 if (rc && mode != 2)
James Smart93996272008-08-24 21:50:30 -04004884 rc = lpfc_sli_config_port(phba, 2);
James Smart4597663f2016-07-06 12:36:01 -07004885 else if (rc && mode == 2)
4886 rc = lpfc_sli_config_port(phba, 3);
James Smarted957682007-06-17 19:56:37 -05004887 if (rc)
dea31012005-04-17 16:05:31 -05004888 goto lpfc_sli_hba_setup_error;
4889
James Smart0d878412009-10-02 15:16:56 -04004890 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
4891 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
4892 rc = pci_enable_pcie_error_reporting(phba->pcidev);
4893 if (!rc) {
4894 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4895 "2709 This device supports "
4896 "Advanced Error Reporting (AER)\n");
4897 spin_lock_irq(&phba->hbalock);
4898 phba->hba_flag |= HBA_AER_ENABLED;
4899 spin_unlock_irq(&phba->hbalock);
4900 } else {
4901 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4902 "2708 This device does not support "
James Smartb069d7e2013-05-31 17:04:36 -04004903 "Advanced Error Reporting (AER): %d\n",
4904 rc);
James Smart0d878412009-10-02 15:16:56 -04004905 phba->cfg_aer_support = 0;
4906 }
4907 }
4908
James Smarted957682007-06-17 19:56:37 -05004909 if (phba->sli_rev == 3) {
4910 phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE;
4911 phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE;
James Smarted957682007-06-17 19:56:37 -05004912 } else {
4913 phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE;
4914 phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE;
James Smart92d7f7b2007-06-17 19:56:38 -05004915 phba->sli3_options = 0;
James Smarted957682007-06-17 19:56:37 -05004916 }
4917
4918 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04004919 "0444 Firmware in SLI %x mode. Max_vpi %d\n",
4920 phba->sli_rev, phba->max_vpi);
James Smarted957682007-06-17 19:56:37 -05004921 rc = lpfc_sli_ring_map(phba);
dea31012005-04-17 16:05:31 -05004922
4923 if (rc)
4924 goto lpfc_sli_hba_setup_error;
4925
James Smart6d368e52011-05-24 11:44:12 -04004926 /* Initialize VPIs. */
4927 if (phba->sli_rev == LPFC_SLI_REV3) {
4928 /*
4929 * The VPI bitmask and physical ID array are allocated
4930 * and initialized once only - at driver load. A port
4931 * reset doesn't need to reinitialize this memory.
4932 */
4933 if ((phba->vpi_bmask == NULL) && (phba->vpi_ids == NULL)) {
4934 longs = (phba->max_vpi + BITS_PER_LONG) / BITS_PER_LONG;
4935 phba->vpi_bmask = kzalloc(longs * sizeof(unsigned long),
4936 GFP_KERNEL);
4937 if (!phba->vpi_bmask) {
4938 rc = -ENOMEM;
4939 goto lpfc_sli_hba_setup_error;
4940 }
4941
4942 phba->vpi_ids = kzalloc(
4943 (phba->max_vpi+1) * sizeof(uint16_t),
4944 GFP_KERNEL);
4945 if (!phba->vpi_ids) {
4946 kfree(phba->vpi_bmask);
4947 rc = -ENOMEM;
4948 goto lpfc_sli_hba_setup_error;
4949 }
4950 for (i = 0; i < phba->max_vpi; i++)
4951 phba->vpi_ids[i] = i;
4952 }
4953 }
4954
James Smart93996272008-08-24 21:50:30 -04004955 /* Init HBQs */
James Smarted957682007-06-17 19:56:37 -05004956 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
4957 rc = lpfc_sli_hbq_setup(phba);
4958 if (rc)
4959 goto lpfc_sli_hba_setup_error;
4960 }
James Smart04c68492009-05-22 14:52:52 -04004961 spin_lock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05004962 phba->sli.sli_flag |= LPFC_PROCESS_LA;
James Smart04c68492009-05-22 14:52:52 -04004963 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05004964
4965 rc = lpfc_config_port_post(phba);
4966 if (rc)
4967 goto lpfc_sli_hba_setup_error;
4968
James Smarted957682007-06-17 19:56:37 -05004969 return rc;
4970
James Smart92d7f7b2007-06-17 19:56:38 -05004971lpfc_sli_hba_setup_error:
James Smart2e0fef82007-06-17 19:56:36 -05004972 phba->link_state = LPFC_HBA_ERROR;
James Smarte40a02c2010-02-26 14:13:54 -05004973 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04004974 "0445 Firmware initialization failed\n");
dea31012005-04-17 16:05:31 -05004975 return rc;
4976}
4977
James Smartda0436e2009-05-22 14:51:39 -04004978/**
4979 * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
4980 * @phba: Pointer to HBA context object.
4981 * @mboxq: mailbox pointer.
4982 * This function issue a dump mailbox command to read config region
4983 * 23 and parse the records in the region and populate driver
4984 * data structure.
4985 **/
4986static int
James Smartff78d8f2011-12-13 13:21:35 -05004987lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba)
James Smartda0436e2009-05-22 14:51:39 -04004988{
James Smartff78d8f2011-12-13 13:21:35 -05004989 LPFC_MBOXQ_t *mboxq;
James Smartda0436e2009-05-22 14:51:39 -04004990 struct lpfc_dmabuf *mp;
4991 struct lpfc_mqe *mqe;
4992 uint32_t data_length;
4993 int rc;
4994
4995 /* Program the default value of vlan_id and fc_map */
4996 phba->valid_vlan = 0;
4997 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4998 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4999 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
5000
James Smartff78d8f2011-12-13 13:21:35 -05005001 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5002 if (!mboxq)
James Smartda0436e2009-05-22 14:51:39 -04005003 return -ENOMEM;
5004
James Smartff78d8f2011-12-13 13:21:35 -05005005 mqe = &mboxq->u.mqe;
5006 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq)) {
5007 rc = -ENOMEM;
5008 goto out_free_mboxq;
5009 }
5010
James Smartda0436e2009-05-22 14:51:39 -04005011 mp = (struct lpfc_dmabuf *) mboxq->context1;
5012 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5013
5014 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
5015 "(%d):2571 Mailbox cmd x%x Status x%x "
5016 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
5017 "x%x x%x x%x x%x x%x x%x x%x x%x x%x "
5018 "CQ: x%x x%x x%x x%x\n",
5019 mboxq->vport ? mboxq->vport->vpi : 0,
5020 bf_get(lpfc_mqe_command, mqe),
5021 bf_get(lpfc_mqe_status, mqe),
5022 mqe->un.mb_words[0], mqe->un.mb_words[1],
5023 mqe->un.mb_words[2], mqe->un.mb_words[3],
5024 mqe->un.mb_words[4], mqe->un.mb_words[5],
5025 mqe->un.mb_words[6], mqe->un.mb_words[7],
5026 mqe->un.mb_words[8], mqe->un.mb_words[9],
5027 mqe->un.mb_words[10], mqe->un.mb_words[11],
5028 mqe->un.mb_words[12], mqe->un.mb_words[13],
5029 mqe->un.mb_words[14], mqe->un.mb_words[15],
5030 mqe->un.mb_words[16], mqe->un.mb_words[50],
5031 mboxq->mcqe.word0,
5032 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
5033 mboxq->mcqe.trailer);
5034
5035 if (rc) {
5036 lpfc_mbuf_free(phba, mp->virt, mp->phys);
5037 kfree(mp);
James Smartff78d8f2011-12-13 13:21:35 -05005038 rc = -EIO;
5039 goto out_free_mboxq;
James Smartda0436e2009-05-22 14:51:39 -04005040 }
5041 data_length = mqe->un.mb_words[5];
James Smarta0c87cb2009-07-19 10:01:10 -04005042 if (data_length > DMP_RGN23_SIZE) {
James Smartd11e31d2009-06-10 17:23:06 -04005043 lpfc_mbuf_free(phba, mp->virt, mp->phys);
5044 kfree(mp);
James Smartff78d8f2011-12-13 13:21:35 -05005045 rc = -EIO;
5046 goto out_free_mboxq;
James Smartd11e31d2009-06-10 17:23:06 -04005047 }
James Smartda0436e2009-05-22 14:51:39 -04005048
5049 lpfc_parse_fcoe_conf(phba, mp->virt, data_length);
5050 lpfc_mbuf_free(phba, mp->virt, mp->phys);
5051 kfree(mp);
James Smartff78d8f2011-12-13 13:21:35 -05005052 rc = 0;
5053
5054out_free_mboxq:
5055 mempool_free(mboxq, phba->mbox_mem_pool);
5056 return rc;
James Smartda0436e2009-05-22 14:51:39 -04005057}
5058
5059/**
5060 * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
5061 * @phba: pointer to lpfc hba data structure.
5062 * @mboxq: pointer to the LPFC_MBOXQ_t structure.
5063 * @vpd: pointer to the memory to hold resulting port vpd data.
5064 * @vpd_size: On input, the number of bytes allocated to @vpd.
5065 * On output, the number of data bytes in @vpd.
5066 *
5067 * This routine executes a READ_REV SLI4 mailbox command. In
5068 * addition, this routine gets the port vpd data.
5069 *
5070 * Return codes
André Goddard Rosaaf901ca2009-11-14 13:09:05 -02005071 * 0 - successful
James Smartd439d282010-09-29 11:18:45 -04005072 * -ENOMEM - could not allocated memory.
James Smartda0436e2009-05-22 14:51:39 -04005073 **/
5074static int
5075lpfc_sli4_read_rev(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
5076 uint8_t *vpd, uint32_t *vpd_size)
5077{
5078 int rc = 0;
5079 uint32_t dma_size;
5080 struct lpfc_dmabuf *dmabuf;
5081 struct lpfc_mqe *mqe;
5082
5083 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5084 if (!dmabuf)
5085 return -ENOMEM;
5086
5087 /*
5088 * Get a DMA buffer for the vpd data resulting from the READ_REV
5089 * mailbox command.
5090 */
5091 dma_size = *vpd_size;
Joe Perches1aee3832014-09-03 12:56:12 -04005092 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, dma_size,
5093 &dmabuf->phys, GFP_KERNEL);
James Smartda0436e2009-05-22 14:51:39 -04005094 if (!dmabuf->virt) {
5095 kfree(dmabuf);
5096 return -ENOMEM;
5097 }
James Smartda0436e2009-05-22 14:51:39 -04005098
5099 /*
5100 * The SLI4 implementation of READ_REV conflicts at word1,
5101 * bits 31:16 and SLI4 adds vpd functionality not present
5102 * in SLI3. This code corrects the conflicts.
5103 */
5104 lpfc_read_rev(phba, mboxq);
5105 mqe = &mboxq->u.mqe;
5106 mqe->un.read_rev.vpd_paddr_high = putPaddrHigh(dmabuf->phys);
5107 mqe->un.read_rev.vpd_paddr_low = putPaddrLow(dmabuf->phys);
5108 mqe->un.read_rev.word1 &= 0x0000FFFF;
5109 bf_set(lpfc_mbx_rd_rev_vpd, &mqe->un.read_rev, 1);
5110 bf_set(lpfc_mbx_rd_rev_avail_len, &mqe->un.read_rev, dma_size);
5111
5112 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5113 if (rc) {
5114 dma_free_coherent(&phba->pcidev->dev, dma_size,
5115 dmabuf->virt, dmabuf->phys);
James Smartdef9c7a2009-12-21 17:02:28 -05005116 kfree(dmabuf);
James Smartda0436e2009-05-22 14:51:39 -04005117 return -EIO;
5118 }
5119
James Smartda0436e2009-05-22 14:51:39 -04005120 /*
5121 * The available vpd length cannot be bigger than the
5122 * DMA buffer passed to the port. Catch the less than
5123 * case and update the caller's size.
5124 */
5125 if (mqe->un.read_rev.avail_vpd_len < *vpd_size)
5126 *vpd_size = mqe->un.read_rev.avail_vpd_len;
5127
James Smartd7c47992010-06-08 18:31:54 -04005128 memcpy(vpd, dmabuf->virt, *vpd_size);
5129
James Smartda0436e2009-05-22 14:51:39 -04005130 dma_free_coherent(&phba->pcidev->dev, dma_size,
5131 dmabuf->virt, dmabuf->phys);
5132 kfree(dmabuf);
5133 return 0;
5134}
5135
5136/**
James Smartcd1c8302011-10-10 21:33:25 -04005137 * lpfc_sli4_retrieve_pport_name - Retrieve SLI4 device physical port name
5138 * @phba: pointer to lpfc hba data structure.
5139 *
5140 * This routine retrieves SLI4 device physical port name this PCI function
5141 * is attached to.
5142 *
5143 * Return codes
Anatol Pomozov4907cb72012-09-01 10:31:09 -07005144 * 0 - successful
James Smartcd1c8302011-10-10 21:33:25 -04005145 * otherwise - failed to retrieve physical port name
5146 **/
5147static int
5148lpfc_sli4_retrieve_pport_name(struct lpfc_hba *phba)
5149{
5150 LPFC_MBOXQ_t *mboxq;
James Smartcd1c8302011-10-10 21:33:25 -04005151 struct lpfc_mbx_get_cntl_attributes *mbx_cntl_attr;
5152 struct lpfc_controller_attribute *cntl_attr;
5153 struct lpfc_mbx_get_port_name *get_port_name;
5154 void *virtaddr = NULL;
5155 uint32_t alloclen, reqlen;
5156 uint32_t shdr_status, shdr_add_status;
5157 union lpfc_sli4_cfg_shdr *shdr;
5158 char cport_name = 0;
5159 int rc;
5160
5161 /* We assume nothing at this point */
5162 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
5163 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_NON;
5164
5165 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5166 if (!mboxq)
5167 return -ENOMEM;
James Smartcd1c8302011-10-10 21:33:25 -04005168 /* obtain link type and link number via READ_CONFIG */
James Smartff78d8f2011-12-13 13:21:35 -05005169 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
5170 lpfc_sli4_read_config(phba);
5171 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL)
5172 goto retrieve_ppname;
James Smartcd1c8302011-10-10 21:33:25 -04005173
5174 /* obtain link type and link number via COMMON_GET_CNTL_ATTRIBUTES */
5175 reqlen = sizeof(struct lpfc_mbx_get_cntl_attributes);
5176 alloclen = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
5177 LPFC_MBOX_OPCODE_GET_CNTL_ATTRIBUTES, reqlen,
5178 LPFC_SLI4_MBX_NEMBED);
5179 if (alloclen < reqlen) {
5180 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5181 "3084 Allocated DMA memory size (%d) is "
5182 "less than the requested DMA memory size "
5183 "(%d)\n", alloclen, reqlen);
5184 rc = -ENOMEM;
5185 goto out_free_mboxq;
5186 }
5187 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5188 virtaddr = mboxq->sge_array->addr[0];
5189 mbx_cntl_attr = (struct lpfc_mbx_get_cntl_attributes *)virtaddr;
5190 shdr = &mbx_cntl_attr->cfg_shdr;
5191 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5192 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
5193 if (shdr_status || shdr_add_status || rc) {
5194 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5195 "3085 Mailbox x%x (x%x/x%x) failed, "
5196 "rc:x%x, status:x%x, add_status:x%x\n",
5197 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
5198 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
5199 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
5200 rc, shdr_status, shdr_add_status);
5201 rc = -ENXIO;
5202 goto out_free_mboxq;
5203 }
5204 cntl_attr = &mbx_cntl_attr->cntl_attr;
5205 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
5206 phba->sli4_hba.lnk_info.lnk_tp =
5207 bf_get(lpfc_cntl_attr_lnk_type, cntl_attr);
5208 phba->sli4_hba.lnk_info.lnk_no =
5209 bf_get(lpfc_cntl_attr_lnk_numb, cntl_attr);
5210 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5211 "3086 lnk_type:%d, lnk_numb:%d\n",
5212 phba->sli4_hba.lnk_info.lnk_tp,
5213 phba->sli4_hba.lnk_info.lnk_no);
5214
5215retrieve_ppname:
5216 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
5217 LPFC_MBOX_OPCODE_GET_PORT_NAME,
5218 sizeof(struct lpfc_mbx_get_port_name) -
5219 sizeof(struct lpfc_sli4_cfg_mhdr),
5220 LPFC_SLI4_MBX_EMBED);
5221 get_port_name = &mboxq->u.mqe.un.get_port_name;
5222 shdr = (union lpfc_sli4_cfg_shdr *)&get_port_name->header.cfg_shdr;
5223 bf_set(lpfc_mbox_hdr_version, &shdr->request, LPFC_OPCODE_VERSION_1);
5224 bf_set(lpfc_mbx_get_port_name_lnk_type, &get_port_name->u.request,
5225 phba->sli4_hba.lnk_info.lnk_tp);
5226 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5227 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5228 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
5229 if (shdr_status || shdr_add_status || rc) {
5230 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5231 "3087 Mailbox x%x (x%x/x%x) failed: "
5232 "rc:x%x, status:x%x, add_status:x%x\n",
5233 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
5234 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
5235 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
5236 rc, shdr_status, shdr_add_status);
5237 rc = -ENXIO;
5238 goto out_free_mboxq;
5239 }
5240 switch (phba->sli4_hba.lnk_info.lnk_no) {
5241 case LPFC_LINK_NUMBER_0:
5242 cport_name = bf_get(lpfc_mbx_get_port_name_name0,
5243 &get_port_name->u.response);
5244 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5245 break;
5246 case LPFC_LINK_NUMBER_1:
5247 cport_name = bf_get(lpfc_mbx_get_port_name_name1,
5248 &get_port_name->u.response);
5249 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5250 break;
5251 case LPFC_LINK_NUMBER_2:
5252 cport_name = bf_get(lpfc_mbx_get_port_name_name2,
5253 &get_port_name->u.response);
5254 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5255 break;
5256 case LPFC_LINK_NUMBER_3:
5257 cport_name = bf_get(lpfc_mbx_get_port_name_name3,
5258 &get_port_name->u.response);
5259 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5260 break;
5261 default:
5262 break;
5263 }
5264
5265 if (phba->sli4_hba.pport_name_sta == LPFC_SLI4_PPNAME_GET) {
5266 phba->Port[0] = cport_name;
5267 phba->Port[1] = '\0';
5268 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5269 "3091 SLI get port name: %s\n", phba->Port);
5270 }
5271
5272out_free_mboxq:
5273 if (rc != MBX_TIMEOUT) {
5274 if (bf_get(lpfc_mqe_command, &mboxq->u.mqe) == MBX_SLI4_CONFIG)
5275 lpfc_sli4_mbox_cmd_free(phba, mboxq);
5276 else
5277 mempool_free(mboxq, phba->mbox_mem_pool);
5278 }
5279 return rc;
5280}
5281
5282/**
James Smartda0436e2009-05-22 14:51:39 -04005283 * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
5284 * @phba: pointer to lpfc hba data structure.
5285 *
5286 * This routine is called to explicitly arm the SLI4 device's completion and
5287 * event queues
5288 **/
5289static void
5290lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba)
5291{
James Smart895427b2017-02-12 13:52:30 -08005292 int qidx;
James Smartda0436e2009-05-22 14:51:39 -04005293
5294 lpfc_sli4_cq_release(phba->sli4_hba.mbx_cq, LPFC_QUEUE_REARM);
5295 lpfc_sli4_cq_release(phba->sli4_hba.els_cq, LPFC_QUEUE_REARM);
James Smart895427b2017-02-12 13:52:30 -08005296 if (phba->sli4_hba.nvmels_cq)
5297 lpfc_sli4_cq_release(phba->sli4_hba.nvmels_cq,
5298 LPFC_QUEUE_REARM);
5299
5300 if (phba->sli4_hba.fcp_cq)
5301 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++)
5302 lpfc_sli4_cq_release(phba->sli4_hba.fcp_cq[qidx],
5303 LPFC_QUEUE_REARM);
5304
5305 if (phba->sli4_hba.nvme_cq)
5306 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++)
5307 lpfc_sli4_cq_release(phba->sli4_hba.nvme_cq[qidx],
5308 LPFC_QUEUE_REARM);
James Smart1ba981f2014-02-20 09:56:45 -05005309
James Smartf38fa0b2014-04-04 13:52:21 -04005310 if (phba->cfg_fof)
James Smart1ba981f2014-02-20 09:56:45 -05005311 lpfc_sli4_cq_release(phba->sli4_hba.oas_cq, LPFC_QUEUE_REARM);
5312
James Smart895427b2017-02-12 13:52:30 -08005313 if (phba->sli4_hba.hba_eq)
5314 for (qidx = 0; qidx < phba->io_channel_irqs; qidx++)
5315 lpfc_sli4_eq_release(phba->sli4_hba.hba_eq[qidx],
5316 LPFC_QUEUE_REARM);
James Smart1ba981f2014-02-20 09:56:45 -05005317
James Smart2d7dbc42017-02-12 13:52:35 -08005318 if (phba->nvmet_support) {
5319 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++) {
5320 lpfc_sli4_cq_release(
5321 phba->sli4_hba.nvmet_cqset[qidx],
5322 LPFC_QUEUE_REARM);
5323 }
James Smart2e90f4b2011-12-13 13:22:37 -05005324 }
James Smart1ba981f2014-02-20 09:56:45 -05005325
5326 if (phba->cfg_fof)
5327 lpfc_sli4_eq_release(phba->sli4_hba.fof_eq, LPFC_QUEUE_REARM);
James Smartda0436e2009-05-22 14:51:39 -04005328}
5329
5330/**
James Smart6d368e52011-05-24 11:44:12 -04005331 * lpfc_sli4_get_avail_extnt_rsrc - Get available resource extent count.
5332 * @phba: Pointer to HBA context object.
5333 * @type: The resource extent type.
James Smartb76f2dc2011-07-22 18:37:42 -04005334 * @extnt_count: buffer to hold port available extent count.
5335 * @extnt_size: buffer to hold element count per extent.
James Smart6d368e52011-05-24 11:44:12 -04005336 *
James Smartb76f2dc2011-07-22 18:37:42 -04005337 * This function calls the port and retrievs the number of available
5338 * extents and their size for a particular extent type.
5339 *
5340 * Returns: 0 if successful. Nonzero otherwise.
James Smart6d368e52011-05-24 11:44:12 -04005341 **/
James Smartb76f2dc2011-07-22 18:37:42 -04005342int
James Smart6d368e52011-05-24 11:44:12 -04005343lpfc_sli4_get_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type,
5344 uint16_t *extnt_count, uint16_t *extnt_size)
5345{
5346 int rc = 0;
5347 uint32_t length;
5348 uint32_t mbox_tmo;
5349 struct lpfc_mbx_get_rsrc_extent_info *rsrc_info;
5350 LPFC_MBOXQ_t *mbox;
5351
5352 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5353 if (!mbox)
5354 return -ENOMEM;
5355
5356 /* Find out how many extents are available for this resource type */
5357 length = (sizeof(struct lpfc_mbx_get_rsrc_extent_info) -
5358 sizeof(struct lpfc_sli4_cfg_mhdr));
5359 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5360 LPFC_MBOX_OPCODE_GET_RSRC_EXTENT_INFO,
5361 length, LPFC_SLI4_MBX_EMBED);
5362
5363 /* Send an extents count of 0 - the GET doesn't use it. */
5364 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
5365 LPFC_SLI4_MBX_EMBED);
5366 if (unlikely(rc)) {
5367 rc = -EIO;
5368 goto err_exit;
5369 }
5370
5371 if (!phba->sli4_hba.intr_enable)
5372 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5373 else {
James Smarta183a152011-10-10 21:32:43 -04005374 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
James Smart6d368e52011-05-24 11:44:12 -04005375 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5376 }
5377 if (unlikely(rc)) {
5378 rc = -EIO;
5379 goto err_exit;
5380 }
5381
5382 rsrc_info = &mbox->u.mqe.un.rsrc_extent_info;
5383 if (bf_get(lpfc_mbox_hdr_status,
5384 &rsrc_info->header.cfg_shdr.response)) {
5385 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5386 "2930 Failed to get resource extents "
5387 "Status 0x%x Add'l Status 0x%x\n",
5388 bf_get(lpfc_mbox_hdr_status,
5389 &rsrc_info->header.cfg_shdr.response),
5390 bf_get(lpfc_mbox_hdr_add_status,
5391 &rsrc_info->header.cfg_shdr.response));
5392 rc = -EIO;
5393 goto err_exit;
5394 }
5395
5396 *extnt_count = bf_get(lpfc_mbx_get_rsrc_extent_info_cnt,
5397 &rsrc_info->u.rsp);
5398 *extnt_size = bf_get(lpfc_mbx_get_rsrc_extent_info_size,
5399 &rsrc_info->u.rsp);
James Smart8a9d2e82012-05-09 21:16:12 -04005400
5401 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5402 "3162 Retrieved extents type-%d from port: count:%d, "
5403 "size:%d\n", type, *extnt_count, *extnt_size);
5404
5405err_exit:
James Smart6d368e52011-05-24 11:44:12 -04005406 mempool_free(mbox, phba->mbox_mem_pool);
5407 return rc;
5408}
5409
5410/**
5411 * lpfc_sli4_chk_avail_extnt_rsrc - Check for available SLI4 resource extents.
5412 * @phba: Pointer to HBA context object.
5413 * @type: The extent type to check.
5414 *
5415 * This function reads the current available extents from the port and checks
5416 * if the extent count or extent size has changed since the last access.
5417 * Callers use this routine post port reset to understand if there is a
5418 * extent reprovisioning requirement.
5419 *
5420 * Returns:
5421 * -Error: error indicates problem.
5422 * 1: Extent count or size has changed.
5423 * 0: No changes.
5424 **/
5425static int
5426lpfc_sli4_chk_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type)
5427{
5428 uint16_t curr_ext_cnt, rsrc_ext_cnt;
5429 uint16_t size_diff, rsrc_ext_size;
5430 int rc = 0;
5431 struct lpfc_rsrc_blks *rsrc_entry;
5432 struct list_head *rsrc_blk_list = NULL;
5433
5434 size_diff = 0;
5435 curr_ext_cnt = 0;
5436 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5437 &rsrc_ext_cnt,
5438 &rsrc_ext_size);
5439 if (unlikely(rc))
5440 return -EIO;
5441
5442 switch (type) {
5443 case LPFC_RSC_TYPE_FCOE_RPI:
5444 rsrc_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5445 break;
5446 case LPFC_RSC_TYPE_FCOE_VPI:
5447 rsrc_blk_list = &phba->lpfc_vpi_blk_list;
5448 break;
5449 case LPFC_RSC_TYPE_FCOE_XRI:
5450 rsrc_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5451 break;
5452 case LPFC_RSC_TYPE_FCOE_VFI:
5453 rsrc_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5454 break;
5455 default:
5456 break;
5457 }
5458
5459 list_for_each_entry(rsrc_entry, rsrc_blk_list, list) {
5460 curr_ext_cnt++;
5461 if (rsrc_entry->rsrc_size != rsrc_ext_size)
5462 size_diff++;
5463 }
5464
5465 if (curr_ext_cnt != rsrc_ext_cnt || size_diff != 0)
5466 rc = 1;
5467
5468 return rc;
5469}
5470
5471/**
5472 * lpfc_sli4_cfg_post_extnts -
5473 * @phba: Pointer to HBA context object.
5474 * @extnt_cnt - number of available extents.
5475 * @type - the extent type (rpi, xri, vfi, vpi).
5476 * @emb - buffer to hold either MBX_EMBED or MBX_NEMBED operation.
5477 * @mbox - pointer to the caller's allocated mailbox structure.
5478 *
5479 * This function executes the extents allocation request. It also
5480 * takes care of the amount of memory needed to allocate or get the
5481 * allocated extents. It is the caller's responsibility to evaluate
5482 * the response.
5483 *
5484 * Returns:
5485 * -Error: Error value describes the condition found.
5486 * 0: if successful
5487 **/
5488static int
James Smart8a9d2e82012-05-09 21:16:12 -04005489lpfc_sli4_cfg_post_extnts(struct lpfc_hba *phba, uint16_t extnt_cnt,
James Smart6d368e52011-05-24 11:44:12 -04005490 uint16_t type, bool *emb, LPFC_MBOXQ_t *mbox)
5491{
5492 int rc = 0;
5493 uint32_t req_len;
5494 uint32_t emb_len;
5495 uint32_t alloc_len, mbox_tmo;
5496
5497 /* Calculate the total requested length of the dma memory */
James Smart8a9d2e82012-05-09 21:16:12 -04005498 req_len = extnt_cnt * sizeof(uint16_t);
James Smart6d368e52011-05-24 11:44:12 -04005499
5500 /*
5501 * Calculate the size of an embedded mailbox. The uint32_t
5502 * accounts for extents-specific word.
5503 */
5504 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
5505 sizeof(uint32_t);
5506
5507 /*
5508 * Presume the allocation and response will fit into an embedded
5509 * mailbox. If not true, reconfigure to a non-embedded mailbox.
5510 */
5511 *emb = LPFC_SLI4_MBX_EMBED;
5512 if (req_len > emb_len) {
James Smart8a9d2e82012-05-09 21:16:12 -04005513 req_len = extnt_cnt * sizeof(uint16_t) +
James Smart6d368e52011-05-24 11:44:12 -04005514 sizeof(union lpfc_sli4_cfg_shdr) +
5515 sizeof(uint32_t);
5516 *emb = LPFC_SLI4_MBX_NEMBED;
5517 }
5518
5519 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5520 LPFC_MBOX_OPCODE_ALLOC_RSRC_EXTENT,
5521 req_len, *emb);
5522 if (alloc_len < req_len) {
5523 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smartb76f2dc2011-07-22 18:37:42 -04005524 "2982 Allocated DMA memory size (x%x) is "
James Smart6d368e52011-05-24 11:44:12 -04005525 "less than the requested DMA memory "
5526 "size (x%x)\n", alloc_len, req_len);
5527 return -ENOMEM;
5528 }
James Smart8a9d2e82012-05-09 21:16:12 -04005529 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, extnt_cnt, type, *emb);
James Smart6d368e52011-05-24 11:44:12 -04005530 if (unlikely(rc))
5531 return -EIO;
5532
5533 if (!phba->sli4_hba.intr_enable)
5534 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5535 else {
James Smarta183a152011-10-10 21:32:43 -04005536 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
James Smart6d368e52011-05-24 11:44:12 -04005537 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5538 }
5539
5540 if (unlikely(rc))
5541 rc = -EIO;
5542 return rc;
5543}
5544
5545/**
5546 * lpfc_sli4_alloc_extent - Allocate an SLI4 resource extent.
5547 * @phba: Pointer to HBA context object.
5548 * @type: The resource extent type to allocate.
5549 *
5550 * This function allocates the number of elements for the specified
5551 * resource type.
5552 **/
5553static int
5554lpfc_sli4_alloc_extent(struct lpfc_hba *phba, uint16_t type)
5555{
5556 bool emb = false;
5557 uint16_t rsrc_id_cnt, rsrc_cnt, rsrc_size;
5558 uint16_t rsrc_id, rsrc_start, j, k;
5559 uint16_t *ids;
5560 int i, rc;
5561 unsigned long longs;
5562 unsigned long *bmask;
5563 struct lpfc_rsrc_blks *rsrc_blks;
5564 LPFC_MBOXQ_t *mbox;
5565 uint32_t length;
5566 struct lpfc_id_range *id_array = NULL;
5567 void *virtaddr = NULL;
5568 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
5569 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
5570 struct list_head *ext_blk_list;
5571
5572 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5573 &rsrc_cnt,
5574 &rsrc_size);
5575 if (unlikely(rc))
5576 return -EIO;
5577
5578 if ((rsrc_cnt == 0) || (rsrc_size == 0)) {
5579 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5580 "3009 No available Resource Extents "
5581 "for resource type 0x%x: Count: 0x%x, "
5582 "Size 0x%x\n", type, rsrc_cnt,
5583 rsrc_size);
5584 return -ENOMEM;
5585 }
5586
James Smart8a9d2e82012-05-09 21:16:12 -04005587 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_INIT | LOG_SLI,
5588 "2903 Post resource extents type-0x%x: "
5589 "count:%d, size %d\n", type, rsrc_cnt, rsrc_size);
James Smart6d368e52011-05-24 11:44:12 -04005590
5591 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5592 if (!mbox)
5593 return -ENOMEM;
5594
James Smart8a9d2e82012-05-09 21:16:12 -04005595 rc = lpfc_sli4_cfg_post_extnts(phba, rsrc_cnt, type, &emb, mbox);
James Smart6d368e52011-05-24 11:44:12 -04005596 if (unlikely(rc)) {
5597 rc = -EIO;
5598 goto err_exit;
5599 }
5600
5601 /*
5602 * Figure out where the response is located. Then get local pointers
5603 * to the response data. The port does not guarantee to respond to
5604 * all extents counts request so update the local variable with the
5605 * allocated count from the port.
5606 */
5607 if (emb == LPFC_SLI4_MBX_EMBED) {
5608 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
5609 id_array = &rsrc_ext->u.rsp.id[0];
5610 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
5611 } else {
5612 virtaddr = mbox->sge_array->addr[0];
5613 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
5614 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
5615 id_array = &n_rsrc->id;
5616 }
5617
5618 longs = ((rsrc_cnt * rsrc_size) + BITS_PER_LONG - 1) / BITS_PER_LONG;
5619 rsrc_id_cnt = rsrc_cnt * rsrc_size;
5620
5621 /*
5622 * Based on the resource size and count, correct the base and max
5623 * resource values.
5624 */
5625 length = sizeof(struct lpfc_rsrc_blks);
5626 switch (type) {
5627 case LPFC_RSC_TYPE_FCOE_RPI:
5628 phba->sli4_hba.rpi_bmask = kzalloc(longs *
5629 sizeof(unsigned long),
5630 GFP_KERNEL);
5631 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
5632 rc = -ENOMEM;
5633 goto err_exit;
5634 }
5635 phba->sli4_hba.rpi_ids = kzalloc(rsrc_id_cnt *
5636 sizeof(uint16_t),
5637 GFP_KERNEL);
5638 if (unlikely(!phba->sli4_hba.rpi_ids)) {
5639 kfree(phba->sli4_hba.rpi_bmask);
5640 rc = -ENOMEM;
5641 goto err_exit;
5642 }
5643
5644 /*
5645 * The next_rpi was initialized with the maximum available
5646 * count but the port may allocate a smaller number. Catch
5647 * that case and update the next_rpi.
5648 */
5649 phba->sli4_hba.next_rpi = rsrc_id_cnt;
5650
5651 /* Initialize local ptrs for common extent processing later. */
5652 bmask = phba->sli4_hba.rpi_bmask;
5653 ids = phba->sli4_hba.rpi_ids;
5654 ext_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5655 break;
5656 case LPFC_RSC_TYPE_FCOE_VPI:
5657 phba->vpi_bmask = kzalloc(longs *
5658 sizeof(unsigned long),
5659 GFP_KERNEL);
5660 if (unlikely(!phba->vpi_bmask)) {
5661 rc = -ENOMEM;
5662 goto err_exit;
5663 }
5664 phba->vpi_ids = kzalloc(rsrc_id_cnt *
5665 sizeof(uint16_t),
5666 GFP_KERNEL);
5667 if (unlikely(!phba->vpi_ids)) {
5668 kfree(phba->vpi_bmask);
5669 rc = -ENOMEM;
5670 goto err_exit;
5671 }
5672
5673 /* Initialize local ptrs for common extent processing later. */
5674 bmask = phba->vpi_bmask;
5675 ids = phba->vpi_ids;
5676 ext_blk_list = &phba->lpfc_vpi_blk_list;
5677 break;
5678 case LPFC_RSC_TYPE_FCOE_XRI:
5679 phba->sli4_hba.xri_bmask = kzalloc(longs *
5680 sizeof(unsigned long),
5681 GFP_KERNEL);
5682 if (unlikely(!phba->sli4_hba.xri_bmask)) {
5683 rc = -ENOMEM;
5684 goto err_exit;
5685 }
James Smart8a9d2e82012-05-09 21:16:12 -04005686 phba->sli4_hba.max_cfg_param.xri_used = 0;
James Smart6d368e52011-05-24 11:44:12 -04005687 phba->sli4_hba.xri_ids = kzalloc(rsrc_id_cnt *
5688 sizeof(uint16_t),
5689 GFP_KERNEL);
5690 if (unlikely(!phba->sli4_hba.xri_ids)) {
5691 kfree(phba->sli4_hba.xri_bmask);
5692 rc = -ENOMEM;
5693 goto err_exit;
5694 }
5695
5696 /* Initialize local ptrs for common extent processing later. */
5697 bmask = phba->sli4_hba.xri_bmask;
5698 ids = phba->sli4_hba.xri_ids;
5699 ext_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5700 break;
5701 case LPFC_RSC_TYPE_FCOE_VFI:
5702 phba->sli4_hba.vfi_bmask = kzalloc(longs *
5703 sizeof(unsigned long),
5704 GFP_KERNEL);
5705 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
5706 rc = -ENOMEM;
5707 goto err_exit;
5708 }
5709 phba->sli4_hba.vfi_ids = kzalloc(rsrc_id_cnt *
5710 sizeof(uint16_t),
5711 GFP_KERNEL);
5712 if (unlikely(!phba->sli4_hba.vfi_ids)) {
5713 kfree(phba->sli4_hba.vfi_bmask);
5714 rc = -ENOMEM;
5715 goto err_exit;
5716 }
5717
5718 /* Initialize local ptrs for common extent processing later. */
5719 bmask = phba->sli4_hba.vfi_bmask;
5720 ids = phba->sli4_hba.vfi_ids;
5721 ext_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5722 break;
5723 default:
5724 /* Unsupported Opcode. Fail call. */
5725 id_array = NULL;
5726 bmask = NULL;
5727 ids = NULL;
5728 ext_blk_list = NULL;
5729 goto err_exit;
5730 }
5731
5732 /*
5733 * Complete initializing the extent configuration with the
5734 * allocated ids assigned to this function. The bitmask serves
5735 * as an index into the array and manages the available ids. The
5736 * array just stores the ids communicated to the port via the wqes.
5737 */
5738 for (i = 0, j = 0, k = 0; i < rsrc_cnt; i++) {
5739 if ((i % 2) == 0)
5740 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_0,
5741 &id_array[k]);
5742 else
5743 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_1,
5744 &id_array[k]);
5745
5746 rsrc_blks = kzalloc(length, GFP_KERNEL);
5747 if (unlikely(!rsrc_blks)) {
5748 rc = -ENOMEM;
5749 kfree(bmask);
5750 kfree(ids);
5751 goto err_exit;
5752 }
5753 rsrc_blks->rsrc_start = rsrc_id;
5754 rsrc_blks->rsrc_size = rsrc_size;
5755 list_add_tail(&rsrc_blks->list, ext_blk_list);
5756 rsrc_start = rsrc_id;
James Smart895427b2017-02-12 13:52:30 -08005757 if ((type == LPFC_RSC_TYPE_FCOE_XRI) && (j == 0)) {
James Smart6d368e52011-05-24 11:44:12 -04005758 phba->sli4_hba.scsi_xri_start = rsrc_start +
James Smart895427b2017-02-12 13:52:30 -08005759 lpfc_sli4_get_iocb_cnt(phba);
5760 phba->sli4_hba.nvme_xri_start =
5761 phba->sli4_hba.scsi_xri_start +
5762 phba->sli4_hba.scsi_xri_max;
5763 }
James Smart6d368e52011-05-24 11:44:12 -04005764
5765 while (rsrc_id < (rsrc_start + rsrc_size)) {
5766 ids[j] = rsrc_id;
5767 rsrc_id++;
5768 j++;
5769 }
5770 /* Entire word processed. Get next word.*/
5771 if ((i % 2) == 1)
5772 k++;
5773 }
5774 err_exit:
5775 lpfc_sli4_mbox_cmd_free(phba, mbox);
5776 return rc;
5777}
5778
James Smart895427b2017-02-12 13:52:30 -08005779
5780
James Smart6d368e52011-05-24 11:44:12 -04005781/**
5782 * lpfc_sli4_dealloc_extent - Deallocate an SLI4 resource extent.
5783 * @phba: Pointer to HBA context object.
5784 * @type: the extent's type.
5785 *
5786 * This function deallocates all extents of a particular resource type.
5787 * SLI4 does not allow for deallocating a particular extent range. It
5788 * is the caller's responsibility to release all kernel memory resources.
5789 **/
5790static int
5791lpfc_sli4_dealloc_extent(struct lpfc_hba *phba, uint16_t type)
5792{
5793 int rc;
5794 uint32_t length, mbox_tmo = 0;
5795 LPFC_MBOXQ_t *mbox;
5796 struct lpfc_mbx_dealloc_rsrc_extents *dealloc_rsrc;
5797 struct lpfc_rsrc_blks *rsrc_blk, *rsrc_blk_next;
5798
5799 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5800 if (!mbox)
5801 return -ENOMEM;
5802
5803 /*
5804 * This function sends an embedded mailbox because it only sends the
5805 * the resource type. All extents of this type are released by the
5806 * port.
5807 */
5808 length = (sizeof(struct lpfc_mbx_dealloc_rsrc_extents) -
5809 sizeof(struct lpfc_sli4_cfg_mhdr));
5810 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5811 LPFC_MBOX_OPCODE_DEALLOC_RSRC_EXTENT,
5812 length, LPFC_SLI4_MBX_EMBED);
5813
5814 /* Send an extents count of 0 - the dealloc doesn't use it. */
5815 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
5816 LPFC_SLI4_MBX_EMBED);
5817 if (unlikely(rc)) {
5818 rc = -EIO;
5819 goto out_free_mbox;
5820 }
5821 if (!phba->sli4_hba.intr_enable)
5822 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5823 else {
James Smarta183a152011-10-10 21:32:43 -04005824 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
James Smart6d368e52011-05-24 11:44:12 -04005825 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5826 }
5827 if (unlikely(rc)) {
5828 rc = -EIO;
5829 goto out_free_mbox;
5830 }
5831
5832 dealloc_rsrc = &mbox->u.mqe.un.dealloc_rsrc_extents;
5833 if (bf_get(lpfc_mbox_hdr_status,
5834 &dealloc_rsrc->header.cfg_shdr.response)) {
5835 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5836 "2919 Failed to release resource extents "
5837 "for type %d - Status 0x%x Add'l Status 0x%x. "
5838 "Resource memory not released.\n",
5839 type,
5840 bf_get(lpfc_mbox_hdr_status,
5841 &dealloc_rsrc->header.cfg_shdr.response),
5842 bf_get(lpfc_mbox_hdr_add_status,
5843 &dealloc_rsrc->header.cfg_shdr.response));
5844 rc = -EIO;
5845 goto out_free_mbox;
5846 }
5847
5848 /* Release kernel memory resources for the specific type. */
5849 switch (type) {
5850 case LPFC_RSC_TYPE_FCOE_VPI:
5851 kfree(phba->vpi_bmask);
5852 kfree(phba->vpi_ids);
5853 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5854 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5855 &phba->lpfc_vpi_blk_list, list) {
5856 list_del_init(&rsrc_blk->list);
5857 kfree(rsrc_blk);
5858 }
James Smart16a3a202013-04-17 20:14:38 -04005859 phba->sli4_hba.max_cfg_param.vpi_used = 0;
James Smart6d368e52011-05-24 11:44:12 -04005860 break;
5861 case LPFC_RSC_TYPE_FCOE_XRI:
5862 kfree(phba->sli4_hba.xri_bmask);
5863 kfree(phba->sli4_hba.xri_ids);
James Smart6d368e52011-05-24 11:44:12 -04005864 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5865 &phba->sli4_hba.lpfc_xri_blk_list, list) {
5866 list_del_init(&rsrc_blk->list);
5867 kfree(rsrc_blk);
5868 }
5869 break;
5870 case LPFC_RSC_TYPE_FCOE_VFI:
5871 kfree(phba->sli4_hba.vfi_bmask);
5872 kfree(phba->sli4_hba.vfi_ids);
5873 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5874 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5875 &phba->sli4_hba.lpfc_vfi_blk_list, list) {
5876 list_del_init(&rsrc_blk->list);
5877 kfree(rsrc_blk);
5878 }
5879 break;
5880 case LPFC_RSC_TYPE_FCOE_RPI:
5881 /* RPI bitmask and physical id array are cleaned up earlier. */
5882 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5883 &phba->sli4_hba.lpfc_rpi_blk_list, list) {
5884 list_del_init(&rsrc_blk->list);
5885 kfree(rsrc_blk);
5886 }
5887 break;
5888 default:
5889 break;
5890 }
5891
5892 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5893
5894 out_free_mbox:
5895 mempool_free(mbox, phba->mbox_mem_pool);
5896 return rc;
5897}
5898
Baoyou Xiebd4b3e52016-09-25 13:44:55 +08005899static void
James Smart7bdedb32016-07-06 12:36:00 -07005900lpfc_set_features(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox,
5901 uint32_t feature)
James Smart65791f12016-07-06 12:35:56 -07005902{
James Smart65791f12016-07-06 12:35:56 -07005903 uint32_t len;
James Smart65791f12016-07-06 12:35:56 -07005904
James Smart65791f12016-07-06 12:35:56 -07005905 len = sizeof(struct lpfc_mbx_set_feature) -
5906 sizeof(struct lpfc_sli4_cfg_mhdr);
5907 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5908 LPFC_MBOX_OPCODE_SET_FEATURES, len,
5909 LPFC_SLI4_MBX_EMBED);
James Smart65791f12016-07-06 12:35:56 -07005910
James Smart7bdedb32016-07-06 12:36:00 -07005911 switch (feature) {
5912 case LPFC_SET_UE_RECOVERY:
5913 bf_set(lpfc_mbx_set_feature_UER,
5914 &mbox->u.mqe.un.set_feature, 1);
5915 mbox->u.mqe.un.set_feature.feature = LPFC_SET_UE_RECOVERY;
5916 mbox->u.mqe.un.set_feature.param_len = 8;
5917 break;
5918 case LPFC_SET_MDS_DIAGS:
5919 bf_set(lpfc_mbx_set_feature_mds,
5920 &mbox->u.mqe.un.set_feature, 1);
5921 bf_set(lpfc_mbx_set_feature_mds_deep_loopbk,
James Smartae9e28f2017-05-15 15:20:51 -07005922 &mbox->u.mqe.un.set_feature, 1);
James Smart7bdedb32016-07-06 12:36:00 -07005923 mbox->u.mqe.un.set_feature.feature = LPFC_SET_MDS_DIAGS;
5924 mbox->u.mqe.un.set_feature.param_len = 8;
5925 break;
James Smart65791f12016-07-06 12:35:56 -07005926 }
James Smart7bdedb32016-07-06 12:36:00 -07005927
5928 return;
James Smart65791f12016-07-06 12:35:56 -07005929}
5930
James Smart6d368e52011-05-24 11:44:12 -04005931/**
5932 * lpfc_sli4_alloc_resource_identifiers - Allocate all SLI4 resource extents.
5933 * @phba: Pointer to HBA context object.
5934 *
5935 * This function allocates all SLI4 resource identifiers.
5936 **/
5937int
5938lpfc_sli4_alloc_resource_identifiers(struct lpfc_hba *phba)
5939{
5940 int i, rc, error = 0;
5941 uint16_t count, base;
5942 unsigned long longs;
5943
James Smartff78d8f2011-12-13 13:21:35 -05005944 if (!phba->sli4_hba.rpi_hdrs_in_use)
5945 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
James Smart6d368e52011-05-24 11:44:12 -04005946 if (phba->sli4_hba.extents_in_use) {
5947 /*
5948 * The port supports resource extents. The XRI, VPI, VFI, RPI
5949 * resource extent count must be read and allocated before
5950 * provisioning the resource id arrays.
5951 */
5952 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
5953 LPFC_IDX_RSRC_RDY) {
5954 /*
5955 * Extent-based resources are set - the driver could
5956 * be in a port reset. Figure out if any corrective
5957 * actions need to be taken.
5958 */
5959 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5960 LPFC_RSC_TYPE_FCOE_VFI);
5961 if (rc != 0)
5962 error++;
5963 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5964 LPFC_RSC_TYPE_FCOE_VPI);
5965 if (rc != 0)
5966 error++;
5967 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5968 LPFC_RSC_TYPE_FCOE_XRI);
5969 if (rc != 0)
5970 error++;
5971 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5972 LPFC_RSC_TYPE_FCOE_RPI);
5973 if (rc != 0)
5974 error++;
5975
5976 /*
5977 * It's possible that the number of resources
5978 * provided to this port instance changed between
5979 * resets. Detect this condition and reallocate
5980 * resources. Otherwise, there is no action.
5981 */
5982 if (error) {
5983 lpfc_printf_log(phba, KERN_INFO,
5984 LOG_MBOX | LOG_INIT,
5985 "2931 Detected extent resource "
5986 "change. Reallocating all "
5987 "extents.\n");
5988 rc = lpfc_sli4_dealloc_extent(phba,
5989 LPFC_RSC_TYPE_FCOE_VFI);
5990 rc = lpfc_sli4_dealloc_extent(phba,
5991 LPFC_RSC_TYPE_FCOE_VPI);
5992 rc = lpfc_sli4_dealloc_extent(phba,
5993 LPFC_RSC_TYPE_FCOE_XRI);
5994 rc = lpfc_sli4_dealloc_extent(phba,
5995 LPFC_RSC_TYPE_FCOE_RPI);
5996 } else
5997 return 0;
5998 }
5999
6000 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
6001 if (unlikely(rc))
6002 goto err_exit;
6003
6004 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
6005 if (unlikely(rc))
6006 goto err_exit;
6007
6008 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
6009 if (unlikely(rc))
6010 goto err_exit;
6011
6012 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
6013 if (unlikely(rc))
6014 goto err_exit;
6015 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
6016 LPFC_IDX_RSRC_RDY);
6017 return rc;
6018 } else {
6019 /*
6020 * The port does not support resource extents. The XRI, VPI,
6021 * VFI, RPI resource ids were determined from READ_CONFIG.
6022 * Just allocate the bitmasks and provision the resource id
6023 * arrays. If a port reset is active, the resources don't
6024 * need any action - just exit.
6025 */
6026 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
James Smartff78d8f2011-12-13 13:21:35 -05006027 LPFC_IDX_RSRC_RDY) {
6028 lpfc_sli4_dealloc_resource_identifiers(phba);
6029 lpfc_sli4_remove_rpis(phba);
6030 }
James Smart6d368e52011-05-24 11:44:12 -04006031 /* RPIs. */
6032 count = phba->sli4_hba.max_cfg_param.max_rpi;
James Smart0a630c22013-01-03 15:44:09 -05006033 if (count <= 0) {
6034 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6035 "3279 Invalid provisioning of "
6036 "rpi:%d\n", count);
6037 rc = -EINVAL;
6038 goto err_exit;
6039 }
James Smart6d368e52011-05-24 11:44:12 -04006040 base = phba->sli4_hba.max_cfg_param.rpi_base;
6041 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
6042 phba->sli4_hba.rpi_bmask = kzalloc(longs *
6043 sizeof(unsigned long),
6044 GFP_KERNEL);
6045 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
6046 rc = -ENOMEM;
6047 goto err_exit;
6048 }
6049 phba->sli4_hba.rpi_ids = kzalloc(count *
6050 sizeof(uint16_t),
6051 GFP_KERNEL);
6052 if (unlikely(!phba->sli4_hba.rpi_ids)) {
6053 rc = -ENOMEM;
6054 goto free_rpi_bmask;
6055 }
6056
6057 for (i = 0; i < count; i++)
6058 phba->sli4_hba.rpi_ids[i] = base + i;
6059
6060 /* VPIs. */
6061 count = phba->sli4_hba.max_cfg_param.max_vpi;
James Smart0a630c22013-01-03 15:44:09 -05006062 if (count <= 0) {
6063 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6064 "3280 Invalid provisioning of "
6065 "vpi:%d\n", count);
6066 rc = -EINVAL;
6067 goto free_rpi_ids;
6068 }
James Smart6d368e52011-05-24 11:44:12 -04006069 base = phba->sli4_hba.max_cfg_param.vpi_base;
6070 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
6071 phba->vpi_bmask = kzalloc(longs *
6072 sizeof(unsigned long),
6073 GFP_KERNEL);
6074 if (unlikely(!phba->vpi_bmask)) {
6075 rc = -ENOMEM;
6076 goto free_rpi_ids;
6077 }
6078 phba->vpi_ids = kzalloc(count *
6079 sizeof(uint16_t),
6080 GFP_KERNEL);
6081 if (unlikely(!phba->vpi_ids)) {
6082 rc = -ENOMEM;
6083 goto free_vpi_bmask;
6084 }
6085
6086 for (i = 0; i < count; i++)
6087 phba->vpi_ids[i] = base + i;
6088
6089 /* XRIs. */
6090 count = phba->sli4_hba.max_cfg_param.max_xri;
James Smart0a630c22013-01-03 15:44:09 -05006091 if (count <= 0) {
6092 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6093 "3281 Invalid provisioning of "
6094 "xri:%d\n", count);
6095 rc = -EINVAL;
6096 goto free_vpi_ids;
6097 }
James Smart6d368e52011-05-24 11:44:12 -04006098 base = phba->sli4_hba.max_cfg_param.xri_base;
6099 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
6100 phba->sli4_hba.xri_bmask = kzalloc(longs *
6101 sizeof(unsigned long),
6102 GFP_KERNEL);
6103 if (unlikely(!phba->sli4_hba.xri_bmask)) {
6104 rc = -ENOMEM;
6105 goto free_vpi_ids;
6106 }
James Smart41899be2012-03-01 22:34:19 -05006107 phba->sli4_hba.max_cfg_param.xri_used = 0;
James Smart6d368e52011-05-24 11:44:12 -04006108 phba->sli4_hba.xri_ids = kzalloc(count *
6109 sizeof(uint16_t),
6110 GFP_KERNEL);
6111 if (unlikely(!phba->sli4_hba.xri_ids)) {
6112 rc = -ENOMEM;
6113 goto free_xri_bmask;
6114 }
6115
6116 for (i = 0; i < count; i++)
6117 phba->sli4_hba.xri_ids[i] = base + i;
6118
6119 /* VFIs. */
6120 count = phba->sli4_hba.max_cfg_param.max_vfi;
James Smart0a630c22013-01-03 15:44:09 -05006121 if (count <= 0) {
6122 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6123 "3282 Invalid provisioning of "
6124 "vfi:%d\n", count);
6125 rc = -EINVAL;
6126 goto free_xri_ids;
6127 }
James Smart6d368e52011-05-24 11:44:12 -04006128 base = phba->sli4_hba.max_cfg_param.vfi_base;
6129 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
6130 phba->sli4_hba.vfi_bmask = kzalloc(longs *
6131 sizeof(unsigned long),
6132 GFP_KERNEL);
6133 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
6134 rc = -ENOMEM;
6135 goto free_xri_ids;
6136 }
6137 phba->sli4_hba.vfi_ids = kzalloc(count *
6138 sizeof(uint16_t),
6139 GFP_KERNEL);
6140 if (unlikely(!phba->sli4_hba.vfi_ids)) {
6141 rc = -ENOMEM;
6142 goto free_vfi_bmask;
6143 }
6144
6145 for (i = 0; i < count; i++)
6146 phba->sli4_hba.vfi_ids[i] = base + i;
6147
6148 /*
6149 * Mark all resources ready. An HBA reset doesn't need
6150 * to reset the initialization.
6151 */
6152 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
6153 LPFC_IDX_RSRC_RDY);
6154 return 0;
6155 }
6156
6157 free_vfi_bmask:
6158 kfree(phba->sli4_hba.vfi_bmask);
Roberto Sassucd60be42017-01-11 11:06:42 +01006159 phba->sli4_hba.vfi_bmask = NULL;
James Smart6d368e52011-05-24 11:44:12 -04006160 free_xri_ids:
6161 kfree(phba->sli4_hba.xri_ids);
Roberto Sassucd60be42017-01-11 11:06:42 +01006162 phba->sli4_hba.xri_ids = NULL;
James Smart6d368e52011-05-24 11:44:12 -04006163 free_xri_bmask:
6164 kfree(phba->sli4_hba.xri_bmask);
Roberto Sassucd60be42017-01-11 11:06:42 +01006165 phba->sli4_hba.xri_bmask = NULL;
James Smart6d368e52011-05-24 11:44:12 -04006166 free_vpi_ids:
6167 kfree(phba->vpi_ids);
Roberto Sassucd60be42017-01-11 11:06:42 +01006168 phba->vpi_ids = NULL;
James Smart6d368e52011-05-24 11:44:12 -04006169 free_vpi_bmask:
6170 kfree(phba->vpi_bmask);
Roberto Sassucd60be42017-01-11 11:06:42 +01006171 phba->vpi_bmask = NULL;
James Smart6d368e52011-05-24 11:44:12 -04006172 free_rpi_ids:
6173 kfree(phba->sli4_hba.rpi_ids);
Roberto Sassucd60be42017-01-11 11:06:42 +01006174 phba->sli4_hba.rpi_ids = NULL;
James Smart6d368e52011-05-24 11:44:12 -04006175 free_rpi_bmask:
6176 kfree(phba->sli4_hba.rpi_bmask);
Roberto Sassucd60be42017-01-11 11:06:42 +01006177 phba->sli4_hba.rpi_bmask = NULL;
James Smart6d368e52011-05-24 11:44:12 -04006178 err_exit:
6179 return rc;
6180}
6181
6182/**
6183 * lpfc_sli4_dealloc_resource_identifiers - Deallocate all SLI4 resource extents.
6184 * @phba: Pointer to HBA context object.
6185 *
6186 * This function allocates the number of elements for the specified
6187 * resource type.
6188 **/
6189int
6190lpfc_sli4_dealloc_resource_identifiers(struct lpfc_hba *phba)
6191{
6192 if (phba->sli4_hba.extents_in_use) {
6193 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
6194 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
6195 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
6196 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
6197 } else {
6198 kfree(phba->vpi_bmask);
James Smart16a3a202013-04-17 20:14:38 -04006199 phba->sli4_hba.max_cfg_param.vpi_used = 0;
James Smart6d368e52011-05-24 11:44:12 -04006200 kfree(phba->vpi_ids);
6201 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6202 kfree(phba->sli4_hba.xri_bmask);
6203 kfree(phba->sli4_hba.xri_ids);
James Smart6d368e52011-05-24 11:44:12 -04006204 kfree(phba->sli4_hba.vfi_bmask);
6205 kfree(phba->sli4_hba.vfi_ids);
6206 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6207 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6208 }
6209
6210 return 0;
6211}
6212
6213/**
James Smartb76f2dc2011-07-22 18:37:42 -04006214 * lpfc_sli4_get_allocated_extnts - Get the port's allocated extents.
6215 * @phba: Pointer to HBA context object.
6216 * @type: The resource extent type.
6217 * @extnt_count: buffer to hold port extent count response
6218 * @extnt_size: buffer to hold port extent size response.
6219 *
6220 * This function calls the port to read the host allocated extents
6221 * for a particular type.
6222 **/
6223int
6224lpfc_sli4_get_allocated_extnts(struct lpfc_hba *phba, uint16_t type,
6225 uint16_t *extnt_cnt, uint16_t *extnt_size)
6226{
6227 bool emb;
6228 int rc = 0;
6229 uint16_t curr_blks = 0;
6230 uint32_t req_len, emb_len;
6231 uint32_t alloc_len, mbox_tmo;
6232 struct list_head *blk_list_head;
6233 struct lpfc_rsrc_blks *rsrc_blk;
6234 LPFC_MBOXQ_t *mbox;
6235 void *virtaddr = NULL;
6236 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
6237 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
6238 union lpfc_sli4_cfg_shdr *shdr;
6239
6240 switch (type) {
6241 case LPFC_RSC_TYPE_FCOE_VPI:
6242 blk_list_head = &phba->lpfc_vpi_blk_list;
6243 break;
6244 case LPFC_RSC_TYPE_FCOE_XRI:
6245 blk_list_head = &phba->sli4_hba.lpfc_xri_blk_list;
6246 break;
6247 case LPFC_RSC_TYPE_FCOE_VFI:
6248 blk_list_head = &phba->sli4_hba.lpfc_vfi_blk_list;
6249 break;
6250 case LPFC_RSC_TYPE_FCOE_RPI:
6251 blk_list_head = &phba->sli4_hba.lpfc_rpi_blk_list;
6252 break;
6253 default:
6254 return -EIO;
6255 }
6256
6257 /* Count the number of extents currently allocatd for this type. */
6258 list_for_each_entry(rsrc_blk, blk_list_head, list) {
6259 if (curr_blks == 0) {
6260 /*
6261 * The GET_ALLOCATED mailbox does not return the size,
6262 * just the count. The size should be just the size
6263 * stored in the current allocated block and all sizes
6264 * for an extent type are the same so set the return
6265 * value now.
6266 */
6267 *extnt_size = rsrc_blk->rsrc_size;
6268 }
6269 curr_blks++;
6270 }
6271
James Smartb76f2dc2011-07-22 18:37:42 -04006272 /*
6273 * Calculate the size of an embedded mailbox. The uint32_t
6274 * accounts for extents-specific word.
6275 */
6276 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
6277 sizeof(uint32_t);
6278
6279 /*
6280 * Presume the allocation and response will fit into an embedded
6281 * mailbox. If not true, reconfigure to a non-embedded mailbox.
6282 */
6283 emb = LPFC_SLI4_MBX_EMBED;
6284 req_len = emb_len;
6285 if (req_len > emb_len) {
6286 req_len = curr_blks * sizeof(uint16_t) +
6287 sizeof(union lpfc_sli4_cfg_shdr) +
6288 sizeof(uint32_t);
6289 emb = LPFC_SLI4_MBX_NEMBED;
6290 }
6291
6292 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6293 if (!mbox)
6294 return -ENOMEM;
6295 memset(mbox, 0, sizeof(LPFC_MBOXQ_t));
6296
6297 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
6298 LPFC_MBOX_OPCODE_GET_ALLOC_RSRC_EXTENT,
6299 req_len, emb);
6300 if (alloc_len < req_len) {
6301 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6302 "2983 Allocated DMA memory size (x%x) is "
6303 "less than the requested DMA memory "
6304 "size (x%x)\n", alloc_len, req_len);
6305 rc = -ENOMEM;
6306 goto err_exit;
6307 }
6308 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, curr_blks, type, emb);
6309 if (unlikely(rc)) {
6310 rc = -EIO;
6311 goto err_exit;
6312 }
6313
6314 if (!phba->sli4_hba.intr_enable)
6315 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
6316 else {
James Smarta183a152011-10-10 21:32:43 -04006317 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
James Smartb76f2dc2011-07-22 18:37:42 -04006318 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
6319 }
6320
6321 if (unlikely(rc)) {
6322 rc = -EIO;
6323 goto err_exit;
6324 }
6325
6326 /*
6327 * Figure out where the response is located. Then get local pointers
6328 * to the response data. The port does not guarantee to respond to
6329 * all extents counts request so update the local variable with the
6330 * allocated count from the port.
6331 */
6332 if (emb == LPFC_SLI4_MBX_EMBED) {
6333 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
6334 shdr = &rsrc_ext->header.cfg_shdr;
6335 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
6336 } else {
6337 virtaddr = mbox->sge_array->addr[0];
6338 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
6339 shdr = &n_rsrc->cfg_shdr;
6340 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
6341 }
6342
6343 if (bf_get(lpfc_mbox_hdr_status, &shdr->response)) {
6344 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
6345 "2984 Failed to read allocated resources "
6346 "for type %d - Status 0x%x Add'l Status 0x%x.\n",
6347 type,
6348 bf_get(lpfc_mbox_hdr_status, &shdr->response),
6349 bf_get(lpfc_mbox_hdr_add_status, &shdr->response));
6350 rc = -EIO;
6351 goto err_exit;
6352 }
6353 err_exit:
6354 lpfc_sli4_mbox_cmd_free(phba, mbox);
6355 return rc;
6356}
6357
6358/**
James Smart0ef69962017-04-21 16:04:50 -07006359 * lpfc_sli4_repost_sgl_list - Repost the buffers sgl pages as block
James Smart8a9d2e82012-05-09 21:16:12 -04006360 * @phba: pointer to lpfc hba data structure.
James Smart895427b2017-02-12 13:52:30 -08006361 * @pring: Pointer to driver SLI ring object.
6362 * @sgl_list: linked link of sgl buffers to post
6363 * @cnt: number of linked list buffers
James Smart8a9d2e82012-05-09 21:16:12 -04006364 *
James Smart895427b2017-02-12 13:52:30 -08006365 * This routine walks the list of buffers that have been allocated and
James Smart8a9d2e82012-05-09 21:16:12 -04006366 * repost them to the port by using SGL block post. This is needed after a
6367 * pci_function_reset/warm_start or start. It attempts to construct blocks
James Smart895427b2017-02-12 13:52:30 -08006368 * of buffer sgls which contains contiguous xris and uses the non-embedded
6369 * SGL block post mailbox commands to post them to the port. For single
James Smart8a9d2e82012-05-09 21:16:12 -04006370 * buffer sgl with non-contiguous xri, if any, it shall use embedded SGL post
6371 * mailbox command for posting.
6372 *
6373 * Returns: 0 = success, non-zero failure.
6374 **/
6375static int
James Smart895427b2017-02-12 13:52:30 -08006376lpfc_sli4_repost_sgl_list(struct lpfc_hba *phba,
6377 struct list_head *sgl_list, int cnt)
James Smart8a9d2e82012-05-09 21:16:12 -04006378{
6379 struct lpfc_sglq *sglq_entry = NULL;
6380 struct lpfc_sglq *sglq_entry_next = NULL;
6381 struct lpfc_sglq *sglq_entry_first = NULL;
James Smart895427b2017-02-12 13:52:30 -08006382 int status, total_cnt;
6383 int post_cnt = 0, num_posted = 0, block_cnt = 0;
James Smart8a9d2e82012-05-09 21:16:12 -04006384 int last_xritag = NO_XRI;
6385 LIST_HEAD(prep_sgl_list);
6386 LIST_HEAD(blck_sgl_list);
6387 LIST_HEAD(allc_sgl_list);
6388 LIST_HEAD(post_sgl_list);
6389 LIST_HEAD(free_sgl_list);
6390
James Smart38c20672013-03-01 16:37:44 -05006391 spin_lock_irq(&phba->hbalock);
James Smart895427b2017-02-12 13:52:30 -08006392 spin_lock(&phba->sli4_hba.sgl_list_lock);
6393 list_splice_init(sgl_list, &allc_sgl_list);
6394 spin_unlock(&phba->sli4_hba.sgl_list_lock);
James Smart38c20672013-03-01 16:37:44 -05006395 spin_unlock_irq(&phba->hbalock);
James Smart8a9d2e82012-05-09 21:16:12 -04006396
James Smart895427b2017-02-12 13:52:30 -08006397 total_cnt = cnt;
James Smart8a9d2e82012-05-09 21:16:12 -04006398 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
6399 &allc_sgl_list, list) {
6400 list_del_init(&sglq_entry->list);
6401 block_cnt++;
6402 if ((last_xritag != NO_XRI) &&
6403 (sglq_entry->sli4_xritag != last_xritag + 1)) {
6404 /* a hole in xri block, form a sgl posting block */
6405 list_splice_init(&prep_sgl_list, &blck_sgl_list);
6406 post_cnt = block_cnt - 1;
6407 /* prepare list for next posting block */
6408 list_add_tail(&sglq_entry->list, &prep_sgl_list);
6409 block_cnt = 1;
6410 } else {
6411 /* prepare list for next posting block */
6412 list_add_tail(&sglq_entry->list, &prep_sgl_list);
6413 /* enough sgls for non-embed sgl mbox command */
6414 if (block_cnt == LPFC_NEMBED_MBOX_SGL_CNT) {
6415 list_splice_init(&prep_sgl_list,
6416 &blck_sgl_list);
6417 post_cnt = block_cnt;
6418 block_cnt = 0;
6419 }
6420 }
6421 num_posted++;
6422
6423 /* keep track of last sgl's xritag */
6424 last_xritag = sglq_entry->sli4_xritag;
6425
James Smart895427b2017-02-12 13:52:30 -08006426 /* end of repost sgl list condition for buffers */
6427 if (num_posted == total_cnt) {
James Smart8a9d2e82012-05-09 21:16:12 -04006428 if (post_cnt == 0) {
6429 list_splice_init(&prep_sgl_list,
6430 &blck_sgl_list);
6431 post_cnt = block_cnt;
6432 } else if (block_cnt == 1) {
6433 status = lpfc_sli4_post_sgl(phba,
6434 sglq_entry->phys, 0,
6435 sglq_entry->sli4_xritag);
6436 if (!status) {
6437 /* successful, put sgl to posted list */
6438 list_add_tail(&sglq_entry->list,
6439 &post_sgl_list);
6440 } else {
6441 /* Failure, put sgl to free list */
6442 lpfc_printf_log(phba, KERN_WARNING,
6443 LOG_SLI,
James Smart895427b2017-02-12 13:52:30 -08006444 "3159 Failed to post "
James Smart8a9d2e82012-05-09 21:16:12 -04006445 "sgl, xritag:x%x\n",
6446 sglq_entry->sli4_xritag);
6447 list_add_tail(&sglq_entry->list,
6448 &free_sgl_list);
James Smart711ea882013-04-17 20:18:29 -04006449 total_cnt--;
James Smart8a9d2e82012-05-09 21:16:12 -04006450 }
6451 }
6452 }
6453
6454 /* continue until a nembed page worth of sgls */
6455 if (post_cnt == 0)
6456 continue;
6457
James Smart895427b2017-02-12 13:52:30 -08006458 /* post the buffer list sgls as a block */
6459 status = lpfc_sli4_post_sgl_list(phba, &blck_sgl_list,
6460 post_cnt);
James Smart8a9d2e82012-05-09 21:16:12 -04006461
6462 if (!status) {
6463 /* success, put sgl list to posted sgl list */
6464 list_splice_init(&blck_sgl_list, &post_sgl_list);
6465 } else {
6466 /* Failure, put sgl list to free sgl list */
6467 sglq_entry_first = list_first_entry(&blck_sgl_list,
6468 struct lpfc_sglq,
6469 list);
6470 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
James Smart895427b2017-02-12 13:52:30 -08006471 "3160 Failed to post sgl-list, "
James Smart8a9d2e82012-05-09 21:16:12 -04006472 "xritag:x%x-x%x\n",
6473 sglq_entry_first->sli4_xritag,
6474 (sglq_entry_first->sli4_xritag +
6475 post_cnt - 1));
6476 list_splice_init(&blck_sgl_list, &free_sgl_list);
James Smart711ea882013-04-17 20:18:29 -04006477 total_cnt -= post_cnt;
James Smart8a9d2e82012-05-09 21:16:12 -04006478 }
6479
6480 /* don't reset xirtag due to hole in xri block */
6481 if (block_cnt == 0)
6482 last_xritag = NO_XRI;
6483
James Smart895427b2017-02-12 13:52:30 -08006484 /* reset sgl post count for next round of posting */
James Smart8a9d2e82012-05-09 21:16:12 -04006485 post_cnt = 0;
6486 }
6487
James Smart895427b2017-02-12 13:52:30 -08006488 /* free the sgls failed to post */
James Smart8a9d2e82012-05-09 21:16:12 -04006489 lpfc_free_sgl_list(phba, &free_sgl_list);
6490
James Smart895427b2017-02-12 13:52:30 -08006491 /* push sgls posted to the available list */
James Smart8a9d2e82012-05-09 21:16:12 -04006492 if (!list_empty(&post_sgl_list)) {
James Smart38c20672013-03-01 16:37:44 -05006493 spin_lock_irq(&phba->hbalock);
James Smart895427b2017-02-12 13:52:30 -08006494 spin_lock(&phba->sli4_hba.sgl_list_lock);
6495 list_splice_init(&post_sgl_list, sgl_list);
6496 spin_unlock(&phba->sli4_hba.sgl_list_lock);
James Smart38c20672013-03-01 16:37:44 -05006497 spin_unlock_irq(&phba->hbalock);
James Smart8a9d2e82012-05-09 21:16:12 -04006498 } else {
6499 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smart895427b2017-02-12 13:52:30 -08006500 "3161 Failure to post sgl to port.\n");
James Smart8a9d2e82012-05-09 21:16:12 -04006501 return -EIO;
6502 }
James Smart895427b2017-02-12 13:52:30 -08006503
6504 /* return the number of XRIs actually posted */
6505 return total_cnt;
James Smart8a9d2e82012-05-09 21:16:12 -04006506}
6507
James Smart61bda8f2016-10-13 15:06:05 -07006508void
6509lpfc_set_host_data(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
6510{
6511 uint32_t len;
6512
6513 len = sizeof(struct lpfc_mbx_set_host_data) -
6514 sizeof(struct lpfc_sli4_cfg_mhdr);
6515 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
6516 LPFC_MBOX_OPCODE_SET_HOST_DATA, len,
6517 LPFC_SLI4_MBX_EMBED);
6518
6519 mbox->u.mqe.un.set_host_data.param_id = LPFC_SET_HOST_OS_DRIVER_VERSION;
James Smartb2fd1032016-12-19 15:07:21 -08006520 mbox->u.mqe.un.set_host_data.param_len =
6521 LPFC_HOST_OS_DRIVER_VERSION_SIZE;
James Smart61bda8f2016-10-13 15:06:05 -07006522 snprintf(mbox->u.mqe.un.set_host_data.data,
6523 LPFC_HOST_OS_DRIVER_VERSION_SIZE,
6524 "Linux %s v"LPFC_DRIVER_VERSION,
6525 (phba->hba_flag & HBA_FCOE_MODE) ? "FCoE" : "FC");
6526}
6527
James Smarta8cf5df2017-05-15 15:20:46 -07006528int
James Smart6c621a22017-05-15 15:20:45 -07006529lpfc_post_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *hrq,
James Smarta8cf5df2017-05-15 15:20:46 -07006530 struct lpfc_queue *drq, int count, int idx)
James Smart6c621a22017-05-15 15:20:45 -07006531{
6532 int rc, i;
6533 struct lpfc_rqe hrqe;
6534 struct lpfc_rqe drqe;
6535 struct lpfc_rqb *rqbp;
6536 struct rqb_dmabuf *rqb_buffer;
6537 LIST_HEAD(rqb_buf_list);
6538
6539 rqbp = hrq->rqbp;
6540 for (i = 0; i < count; i++) {
6541 /* IF RQ is already full, don't bother */
6542 if (rqbp->buffer_count + i >= rqbp->entry_count - 1)
6543 break;
6544 rqb_buffer = rqbp->rqb_alloc_buffer(phba);
6545 if (!rqb_buffer)
6546 break;
6547 rqb_buffer->hrq = hrq;
6548 rqb_buffer->drq = drq;
James Smarta8cf5df2017-05-15 15:20:46 -07006549 rqb_buffer->idx = idx;
James Smart6c621a22017-05-15 15:20:45 -07006550 list_add_tail(&rqb_buffer->hbuf.list, &rqb_buf_list);
6551 }
6552 while (!list_empty(&rqb_buf_list)) {
6553 list_remove_head(&rqb_buf_list, rqb_buffer, struct rqb_dmabuf,
6554 hbuf.list);
6555
6556 hrqe.address_lo = putPaddrLow(rqb_buffer->hbuf.phys);
6557 hrqe.address_hi = putPaddrHigh(rqb_buffer->hbuf.phys);
6558 drqe.address_lo = putPaddrLow(rqb_buffer->dbuf.phys);
6559 drqe.address_hi = putPaddrHigh(rqb_buffer->dbuf.phys);
6560 rc = lpfc_sli4_rq_put(hrq, drq, &hrqe, &drqe);
6561 if (rc < 0) {
6562 rqbp->rqb_free_buffer(phba, rqb_buffer);
6563 } else {
6564 list_add_tail(&rqb_buffer->hbuf.list,
6565 &rqbp->rqb_buffer_list);
6566 rqbp->buffer_count++;
6567 }
6568 }
6569 return 1;
6570}
6571
James Smart8a9d2e82012-05-09 21:16:12 -04006572/**
Masahiro Yamada183b8022017-02-27 14:29:20 -08006573 * lpfc_sli4_hba_setup - SLI4 device initialization PCI function
James Smartda0436e2009-05-22 14:51:39 -04006574 * @phba: Pointer to HBA context object.
6575 *
Masahiro Yamada183b8022017-02-27 14:29:20 -08006576 * This function is the main SLI4 device initialization PCI function. This
6577 * function is called by the HBA initialization code, HBA reset code and
James Smartda0436e2009-05-22 14:51:39 -04006578 * HBA error attention handler code. Caller is not required to hold any
6579 * locks.
6580 **/
6581int
6582lpfc_sli4_hba_setup(struct lpfc_hba *phba)
6583{
James Smart6c621a22017-05-15 15:20:45 -07006584 int rc, i, cnt;
James Smartda0436e2009-05-22 14:51:39 -04006585 LPFC_MBOXQ_t *mboxq;
6586 struct lpfc_mqe *mqe;
6587 uint8_t *vpd;
6588 uint32_t vpd_size;
6589 uint32_t ftr_rsp = 0;
6590 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);
6591 struct lpfc_vport *vport = phba->pport;
6592 struct lpfc_dmabuf *mp;
James Smart2d7dbc42017-02-12 13:52:35 -08006593 struct lpfc_rqb *rqbp;
James Smartda0436e2009-05-22 14:51:39 -04006594
6595 /* Perform a PCI function reset to start from clean */
6596 rc = lpfc_pci_function_reset(phba);
6597 if (unlikely(rc))
6598 return -ENODEV;
6599
6600 /* Check the HBA Host Status Register for readyness */
6601 rc = lpfc_sli4_post_status_check(phba);
6602 if (unlikely(rc))
6603 return -ENODEV;
6604 else {
6605 spin_lock_irq(&phba->hbalock);
6606 phba->sli.sli_flag |= LPFC_SLI_ACTIVE;
6607 spin_unlock_irq(&phba->hbalock);
6608 }
6609
6610 /*
6611 * Allocate a single mailbox container for initializing the
6612 * port.
6613 */
6614 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6615 if (!mboxq)
6616 return -ENOMEM;
6617
James Smartda0436e2009-05-22 14:51:39 -04006618 /* Issue READ_REV to collect vpd and FW information. */
James Smart49198b32010-04-06 15:04:33 -04006619 vpd_size = SLI4_PAGE_SIZE;
James Smartda0436e2009-05-22 14:51:39 -04006620 vpd = kzalloc(vpd_size, GFP_KERNEL);
6621 if (!vpd) {
6622 rc = -ENOMEM;
6623 goto out_free_mbox;
6624 }
6625
6626 rc = lpfc_sli4_read_rev(phba, mboxq, vpd, &vpd_size);
James Smart76a95d72010-11-20 23:11:48 -05006627 if (unlikely(rc)) {
6628 kfree(vpd);
6629 goto out_free_mbox;
6630 }
James Smart572709e2013-07-15 18:32:43 -04006631
James Smartda0436e2009-05-22 14:51:39 -04006632 mqe = &mboxq->u.mqe;
James Smartf1126682009-06-10 17:22:44 -04006633 phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev);
James Smartb5c53952016-03-31 14:12:30 -07006634 if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev)) {
James Smart76a95d72010-11-20 23:11:48 -05006635 phba->hba_flag |= HBA_FCOE_MODE;
James Smartb5c53952016-03-31 14:12:30 -07006636 phba->fcp_embed_io = 0; /* SLI4 FC support only */
6637 } else {
James Smart76a95d72010-11-20 23:11:48 -05006638 phba->hba_flag &= ~HBA_FCOE_MODE;
James Smartb5c53952016-03-31 14:12:30 -07006639 }
James Smart45ed1192009-10-02 15:17:02 -04006640
6641 if (bf_get(lpfc_mbx_rd_rev_cee_ver, &mqe->un.read_rev) ==
6642 LPFC_DCBX_CEE_MODE)
6643 phba->hba_flag |= HBA_FIP_SUPPORT;
6644 else
6645 phba->hba_flag &= ~HBA_FIP_SUPPORT;
6646
James Smart4f2e66c2012-05-09 21:17:07 -04006647 phba->hba_flag &= ~HBA_FCP_IOQ_FLUSH;
6648
James Smartc31098c2011-04-16 11:03:33 -04006649 if (phba->sli_rev != LPFC_SLI_REV4) {
James Smartda0436e2009-05-22 14:51:39 -04006650 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6651 "0376 READ_REV Error. SLI Level %d "
6652 "FCoE enabled %d\n",
James Smart76a95d72010-11-20 23:11:48 -05006653 phba->sli_rev, phba->hba_flag & HBA_FCOE_MODE);
James Smartda0436e2009-05-22 14:51:39 -04006654 rc = -EIO;
James Smart76a95d72010-11-20 23:11:48 -05006655 kfree(vpd);
6656 goto out_free_mbox;
James Smartda0436e2009-05-22 14:51:39 -04006657 }
James Smartcd1c8302011-10-10 21:33:25 -04006658
6659 /*
James Smartff78d8f2011-12-13 13:21:35 -05006660 * Continue initialization with default values even if driver failed
6661 * to read FCoE param config regions, only read parameters if the
6662 * board is FCoE
6663 */
6664 if (phba->hba_flag & HBA_FCOE_MODE &&
6665 lpfc_sli4_read_fcoe_params(phba))
6666 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_INIT,
6667 "2570 Failed to read FCoE parameters\n");
6668
6669 /*
James Smartcd1c8302011-10-10 21:33:25 -04006670 * Retrieve sli4 device physical port name, failure of doing it
6671 * is considered as non-fatal.
6672 */
6673 rc = lpfc_sli4_retrieve_pport_name(phba);
6674 if (!rc)
6675 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6676 "3080 Successful retrieving SLI4 device "
6677 "physical port name: %s.\n", phba->Port);
6678
James Smartda0436e2009-05-22 14:51:39 -04006679 /*
6680 * Evaluate the read rev and vpd data. Populate the driver
6681 * state with the results. If this routine fails, the failure
6682 * is not fatal as the driver will use generic values.
6683 */
6684 rc = lpfc_parse_vpd(phba, vpd, vpd_size);
6685 if (unlikely(!rc)) {
6686 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6687 "0377 Error %d parsing vpd. "
6688 "Using defaults.\n", rc);
6689 rc = 0;
6690 }
James Smart76a95d72010-11-20 23:11:48 -05006691 kfree(vpd);
James Smartda0436e2009-05-22 14:51:39 -04006692
James Smartf1126682009-06-10 17:22:44 -04006693 /* Save information as VPD data */
6694 phba->vpd.rev.biuRev = mqe->un.read_rev.first_hw_rev;
6695 phba->vpd.rev.smRev = mqe->un.read_rev.second_hw_rev;
6696 phba->vpd.rev.endecRev = mqe->un.read_rev.third_hw_rev;
6697 phba->vpd.rev.fcphHigh = bf_get(lpfc_mbx_rd_rev_fcph_high,
6698 &mqe->un.read_rev);
6699 phba->vpd.rev.fcphLow = bf_get(lpfc_mbx_rd_rev_fcph_low,
6700 &mqe->un.read_rev);
6701 phba->vpd.rev.feaLevelHigh = bf_get(lpfc_mbx_rd_rev_ftr_lvl_high,
6702 &mqe->un.read_rev);
6703 phba->vpd.rev.feaLevelLow = bf_get(lpfc_mbx_rd_rev_ftr_lvl_low,
6704 &mqe->un.read_rev);
6705 phba->vpd.rev.sli1FwRev = mqe->un.read_rev.fw_id_rev;
6706 memcpy(phba->vpd.rev.sli1FwName, mqe->un.read_rev.fw_name, 16);
6707 phba->vpd.rev.sli2FwRev = mqe->un.read_rev.ulp_fw_id_rev;
6708 memcpy(phba->vpd.rev.sli2FwName, mqe->un.read_rev.ulp_fw_name, 16);
6709 phba->vpd.rev.opFwRev = mqe->un.read_rev.fw_id_rev;
6710 memcpy(phba->vpd.rev.opFwName, mqe->un.read_rev.fw_name, 16);
6711 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6712 "(%d):0380 READ_REV Status x%x "
6713 "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
6714 mboxq->vport ? mboxq->vport->vpi : 0,
6715 bf_get(lpfc_mqe_status, mqe),
6716 phba->vpd.rev.opFwName,
6717 phba->vpd.rev.fcphHigh, phba->vpd.rev.fcphLow,
6718 phba->vpd.rev.feaLevelHigh, phba->vpd.rev.feaLevelLow);
James Smartda0436e2009-05-22 14:51:39 -04006719
James Smart572709e2013-07-15 18:32:43 -04006720 /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3) */
6721 rc = (phba->sli4_hba.max_cfg_param.max_xri >> 3);
6722 if (phba->pport->cfg_lun_queue_depth > rc) {
6723 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6724 "3362 LUN queue depth changed from %d to %d\n",
6725 phba->pport->cfg_lun_queue_depth, rc);
6726 phba->pport->cfg_lun_queue_depth = rc;
6727 }
6728
James Smart65791f12016-07-06 12:35:56 -07006729 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
James Smart7bdedb32016-07-06 12:36:00 -07006730 LPFC_SLI_INTF_IF_TYPE_0) {
6731 lpfc_set_features(phba, mboxq, LPFC_SET_UE_RECOVERY);
6732 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6733 if (rc == MBX_SUCCESS) {
6734 phba->hba_flag |= HBA_RECOVERABLE_UE;
6735 /* Set 1Sec interval to detect UE */
6736 phba->eratt_poll_interval = 1;
6737 phba->sli4_hba.ue_to_sr = bf_get(
6738 lpfc_mbx_set_feature_UESR,
6739 &mboxq->u.mqe.un.set_feature);
6740 phba->sli4_hba.ue_to_rp = bf_get(
6741 lpfc_mbx_set_feature_UERP,
6742 &mboxq->u.mqe.un.set_feature);
6743 }
6744 }
6745
6746 if (phba->cfg_enable_mds_diags && phba->mds_diags_support) {
6747 /* Enable MDS Diagnostics only if the SLI Port supports it */
6748 lpfc_set_features(phba, mboxq, LPFC_SET_MDS_DIAGS);
6749 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6750 if (rc != MBX_SUCCESS)
6751 phba->mds_diags_support = 0;
6752 }
James Smart572709e2013-07-15 18:32:43 -04006753
James Smartda0436e2009-05-22 14:51:39 -04006754 /*
6755 * Discover the port's supported feature set and match it against the
6756 * hosts requests.
6757 */
6758 lpfc_request_features(phba, mboxq);
6759 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6760 if (unlikely(rc)) {
6761 rc = -EIO;
James Smart76a95d72010-11-20 23:11:48 -05006762 goto out_free_mbox;
James Smartda0436e2009-05-22 14:51:39 -04006763 }
6764
6765 /*
6766 * The port must support FCP initiator mode as this is the
6767 * only mode running in the host.
6768 */
6769 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi, &mqe->un.req_ftrs))) {
6770 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
6771 "0378 No support for fcpi mode.\n");
6772 ftr_rsp++;
6773 }
James Smartfedd3b72011-02-16 12:39:24 -05006774 if (bf_get(lpfc_mbx_rq_ftr_rsp_perfh, &mqe->un.req_ftrs))
6775 phba->sli3_options |= LPFC_SLI4_PERFH_ENABLED;
6776 else
6777 phba->sli3_options &= ~LPFC_SLI4_PERFH_ENABLED;
James Smartda0436e2009-05-22 14:51:39 -04006778 /*
6779 * If the port cannot support the host's requested features
6780 * then turn off the global config parameters to disable the
6781 * feature in the driver. This is not a fatal error.
6782 */
James Smartbf086112011-08-21 21:48:13 -04006783 phba->sli3_options &= ~LPFC_SLI3_BG_ENABLED;
6784 if (phba->cfg_enable_bg) {
6785 if (bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs))
6786 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
6787 else
6788 ftr_rsp++;
6789 }
James Smartda0436e2009-05-22 14:51:39 -04006790
6791 if (phba->max_vpi && phba->cfg_enable_npiv &&
6792 !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
6793 ftr_rsp++;
6794
6795 if (ftr_rsp) {
6796 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
6797 "0379 Feature Mismatch Data: x%08x %08x "
6798 "x%x x%x x%x\n", mqe->un.req_ftrs.word2,
6799 mqe->un.req_ftrs.word3, phba->cfg_enable_bg,
6800 phba->cfg_enable_npiv, phba->max_vpi);
6801 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
6802 phba->cfg_enable_bg = 0;
6803 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
6804 phba->cfg_enable_npiv = 0;
6805 }
6806
6807 /* These SLI3 features are assumed in SLI4 */
6808 spin_lock_irq(&phba->hbalock);
6809 phba->sli3_options |= (LPFC_SLI3_NPIV_ENABLED | LPFC_SLI3_HBQ_ENABLED);
6810 spin_unlock_irq(&phba->hbalock);
6811
James Smart6d368e52011-05-24 11:44:12 -04006812 /*
6813 * Allocate all resources (xri,rpi,vpi,vfi) now. Subsequent
6814 * calls depends on these resources to complete port setup.
6815 */
6816 rc = lpfc_sli4_alloc_resource_identifiers(phba);
6817 if (rc) {
6818 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6819 "2920 Failed to alloc Resource IDs "
6820 "rc = x%x\n", rc);
6821 goto out_free_mbox;
6822 }
6823
James Smart61bda8f2016-10-13 15:06:05 -07006824 lpfc_set_host_data(phba, mboxq);
6825
6826 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6827 if (rc) {
6828 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
6829 "2134 Failed to set host os driver version %x",
6830 rc);
6831 }
6832
James Smartda0436e2009-05-22 14:51:39 -04006833 /* Read the port's service parameters. */
James Smart9f1177a2010-02-26 14:12:57 -05006834 rc = lpfc_read_sparam(phba, mboxq, vport->vpi);
6835 if (rc) {
6836 phba->link_state = LPFC_HBA_ERROR;
6837 rc = -ENOMEM;
James Smart76a95d72010-11-20 23:11:48 -05006838 goto out_free_mbox;
James Smart9f1177a2010-02-26 14:12:57 -05006839 }
6840
James Smartda0436e2009-05-22 14:51:39 -04006841 mboxq->vport = vport;
6842 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6843 mp = (struct lpfc_dmabuf *) mboxq->context1;
6844 if (rc == MBX_SUCCESS) {
6845 memcpy(&vport->fc_sparam, mp->virt, sizeof(struct serv_parm));
6846 rc = 0;
6847 }
6848
6849 /*
6850 * This memory was allocated by the lpfc_read_sparam routine. Release
6851 * it to the mbuf pool.
6852 */
6853 lpfc_mbuf_free(phba, mp->virt, mp->phys);
6854 kfree(mp);
6855 mboxq->context1 = NULL;
6856 if (unlikely(rc)) {
6857 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6858 "0382 READ_SPARAM command failed "
6859 "status %d, mbxStatus x%x\n",
6860 rc, bf_get(lpfc_mqe_status, mqe));
6861 phba->link_state = LPFC_HBA_ERROR;
6862 rc = -EIO;
James Smart76a95d72010-11-20 23:11:48 -05006863 goto out_free_mbox;
James Smartda0436e2009-05-22 14:51:39 -04006864 }
6865
James Smart05580562011-05-24 11:40:48 -04006866 lpfc_update_vport_wwn(vport);
James Smartda0436e2009-05-22 14:51:39 -04006867
6868 /* Update the fc_host data structures with new wwn. */
6869 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
6870 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
6871
James Smart895427b2017-02-12 13:52:30 -08006872 /* Create all the SLI4 queues */
6873 rc = lpfc_sli4_queue_create(phba);
6874 if (rc) {
6875 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6876 "3089 Failed to allocate queues\n");
6877 rc = -ENODEV;
6878 goto out_free_mbox;
6879 }
6880 /* Set up all the queues to the device */
6881 rc = lpfc_sli4_queue_setup(phba);
6882 if (unlikely(rc)) {
6883 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6884 "0381 Error %d during queue setup.\n ", rc);
6885 goto out_stop_timers;
6886 }
6887 /* Initialize the driver internal SLI layer lists. */
6888 lpfc_sli4_setup(phba);
6889 lpfc_sli4_queue_init(phba);
6890
6891 /* update host els xri-sgl sizes and mappings */
6892 rc = lpfc_sli4_els_sgl_update(phba);
James Smart8a9d2e82012-05-09 21:16:12 -04006893 if (unlikely(rc)) {
6894 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6895 "1400 Failed to update xri-sgl size and "
6896 "mapping: %d\n", rc);
James Smart895427b2017-02-12 13:52:30 -08006897 goto out_destroy_queue;
James Smartda0436e2009-05-22 14:51:39 -04006898 }
6899
James Smart8a9d2e82012-05-09 21:16:12 -04006900 /* register the els sgl pool to the port */
James Smart895427b2017-02-12 13:52:30 -08006901 rc = lpfc_sli4_repost_sgl_list(phba, &phba->sli4_hba.lpfc_els_sgl_list,
6902 phba->sli4_hba.els_xri_cnt);
6903 if (unlikely(rc < 0)) {
James Smart8a9d2e82012-05-09 21:16:12 -04006904 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6905 "0582 Error %d during els sgl post "
6906 "operation\n", rc);
6907 rc = -ENODEV;
James Smart895427b2017-02-12 13:52:30 -08006908 goto out_destroy_queue;
6909 }
6910 phba->sli4_hba.els_xri_cnt = rc;
6911
James Smartf358dd02017-02-12 13:52:34 -08006912 if (phba->nvmet_support) {
6913 /* update host nvmet xri-sgl sizes and mappings */
6914 rc = lpfc_sli4_nvmet_sgl_update(phba);
6915 if (unlikely(rc)) {
6916 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6917 "6308 Failed to update nvmet-sgl size "
6918 "and mapping: %d\n", rc);
6919 goto out_destroy_queue;
6920 }
6921
6922 /* register the nvmet sgl pool to the port */
6923 rc = lpfc_sli4_repost_sgl_list(
6924 phba,
6925 &phba->sli4_hba.lpfc_nvmet_sgl_list,
6926 phba->sli4_hba.nvmet_xri_cnt);
6927 if (unlikely(rc < 0)) {
6928 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6929 "3117 Error %d during nvmet "
6930 "sgl post\n", rc);
6931 rc = -ENODEV;
6932 goto out_destroy_queue;
6933 }
6934 phba->sli4_hba.nvmet_xri_cnt = rc;
James Smart6c621a22017-05-15 15:20:45 -07006935
6936 cnt = phba->cfg_iocb_cnt * 1024;
6937 /* We need 1 iocbq for every SGL, for IO processing */
6938 cnt += phba->sli4_hba.nvmet_xri_cnt;
James Smartf358dd02017-02-12 13:52:34 -08006939 } else {
James Smart895427b2017-02-12 13:52:30 -08006940 /* update host scsi xri-sgl sizes and mappings */
6941 rc = lpfc_sli4_scsi_sgl_update(phba);
6942 if (unlikely(rc)) {
6943 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6944 "6309 Failed to update scsi-sgl size "
6945 "and mapping: %d\n", rc);
6946 goto out_destroy_queue;
6947 }
6948
6949 /* update host nvme xri-sgl sizes and mappings */
6950 rc = lpfc_sli4_nvme_sgl_update(phba);
6951 if (unlikely(rc)) {
6952 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6953 "6082 Failed to update nvme-sgl size "
6954 "and mapping: %d\n", rc);
6955 goto out_destroy_queue;
6956 }
James Smart6c621a22017-05-15 15:20:45 -07006957
6958 cnt = phba->cfg_iocb_cnt * 1024;
James Smart11e644e2017-06-15 22:56:48 -07006959 }
6960
6961 if (!phba->sli.iocbq_lookup) {
James Smart6c621a22017-05-15 15:20:45 -07006962 /* Initialize and populate the iocb list per host */
6963 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
James Smart11e644e2017-06-15 22:56:48 -07006964 "2821 initialize iocb list %d total %d\n",
James Smart6c621a22017-05-15 15:20:45 -07006965 phba->cfg_iocb_cnt, cnt);
6966 rc = lpfc_init_iocb_list(phba, cnt);
6967 if (rc) {
6968 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smart11e644e2017-06-15 22:56:48 -07006969 "1413 Failed to init iocb list.\n");
James Smart6c621a22017-05-15 15:20:45 -07006970 goto out_destroy_queue;
6971 }
James Smart8a9d2e82012-05-09 21:16:12 -04006972 }
6973
James Smart11e644e2017-06-15 22:56:48 -07006974 if (phba->nvmet_support)
6975 lpfc_nvmet_create_targetport(phba);
6976
James Smart2d7dbc42017-02-12 13:52:35 -08006977 if (phba->nvmet_support && phba->cfg_nvmet_mrq) {
James Smart2d7dbc42017-02-12 13:52:35 -08006978 /* Post initial buffers to all RQs created */
6979 for (i = 0; i < phba->cfg_nvmet_mrq; i++) {
6980 rqbp = phba->sli4_hba.nvmet_mrq_hdr[i]->rqbp;
6981 INIT_LIST_HEAD(&rqbp->rqb_buffer_list);
6982 rqbp->rqb_alloc_buffer = lpfc_sli4_nvmet_alloc;
6983 rqbp->rqb_free_buffer = lpfc_sli4_nvmet_free;
James Smart61f3d4b2017-05-15 15:20:41 -07006984 rqbp->entry_count = LPFC_NVMET_RQE_DEF_COUNT;
James Smart2d7dbc42017-02-12 13:52:35 -08006985 rqbp->buffer_count = 0;
6986
James Smart2d7dbc42017-02-12 13:52:35 -08006987 lpfc_post_rq_buffer(
6988 phba, phba->sli4_hba.nvmet_mrq_hdr[i],
6989 phba->sli4_hba.nvmet_mrq_data[i],
James Smarta8cf5df2017-05-15 15:20:46 -07006990 LPFC_NVMET_RQE_DEF_COUNT, i);
James Smart2d7dbc42017-02-12 13:52:35 -08006991 }
6992 }
6993
James Smart895427b2017-02-12 13:52:30 -08006994 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
6995 /* register the allocated scsi sgl pool to the port */
6996 rc = lpfc_sli4_repost_scsi_sgl_list(phba);
6997 if (unlikely(rc)) {
6998 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6999 "0383 Error %d during scsi sgl post "
7000 "operation\n", rc);
7001 /* Some Scsi buffers were moved to abort scsi list */
7002 /* A pci function reset will repost them */
7003 rc = -ENODEV;
7004 goto out_destroy_queue;
7005 }
James Smartda0436e2009-05-22 14:51:39 -04007006 }
7007
James Smart01649562017-02-12 13:52:32 -08007008 if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
7009 (phba->nvmet_support == 0)) {
7010
7011 /* register the allocated nvme sgl pool to the port */
7012 rc = lpfc_repost_nvme_sgl_list(phba);
7013 if (unlikely(rc)) {
7014 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7015 "6116 Error %d during nvme sgl post "
7016 "operation\n", rc);
7017 /* Some NVME buffers were moved to abort nvme list */
7018 /* A pci function reset will repost them */
7019 rc = -ENODEV;
7020 goto out_destroy_queue;
7021 }
James Smartda0436e2009-05-22 14:51:39 -04007022 }
7023
7024 /* Post the rpi header region to the device. */
7025 rc = lpfc_sli4_post_all_rpi_hdrs(phba);
7026 if (unlikely(rc)) {
7027 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7028 "0393 Error %d during rpi post operation\n",
7029 rc);
7030 rc = -ENODEV;
James Smart895427b2017-02-12 13:52:30 -08007031 goto out_destroy_queue;
James Smartda0436e2009-05-22 14:51:39 -04007032 }
James Smart97f2ecf2012-03-01 22:35:23 -05007033 lpfc_sli4_node_prep(phba);
James Smartda0436e2009-05-22 14:51:39 -04007034
James Smart895427b2017-02-12 13:52:30 -08007035 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
James Smart2d7dbc42017-02-12 13:52:35 -08007036 if ((phba->nvmet_support == 0) || (phba->cfg_nvmet_mrq == 1)) {
James Smart895427b2017-02-12 13:52:30 -08007037 /*
7038 * The FC Port needs to register FCFI (index 0)
7039 */
7040 lpfc_reg_fcfi(phba, mboxq);
7041 mboxq->vport = phba->pport;
7042 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7043 if (rc != MBX_SUCCESS)
7044 goto out_unset_queue;
7045 rc = 0;
7046 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi,
7047 &mboxq->u.mqe.un.reg_fcfi);
James Smart2d7dbc42017-02-12 13:52:35 -08007048 } else {
7049 /* We are a NVME Target mode with MRQ > 1 */
7050
7051 /* First register the FCFI */
7052 lpfc_reg_fcfi_mrq(phba, mboxq, 0);
7053 mboxq->vport = phba->pport;
7054 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7055 if (rc != MBX_SUCCESS)
7056 goto out_unset_queue;
7057 rc = 0;
7058 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_mrq_fcfi,
7059 &mboxq->u.mqe.un.reg_fcfi_mrq);
7060
7061 /* Next register the MRQs */
7062 lpfc_reg_fcfi_mrq(phba, mboxq, 1);
7063 mboxq->vport = phba->pport;
7064 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7065 if (rc != MBX_SUCCESS)
7066 goto out_unset_queue;
7067 rc = 0;
James Smart895427b2017-02-12 13:52:30 -08007068 }
7069 /* Check if the port is configured to be disabled */
7070 lpfc_sli_read_link_ste(phba);
James Smartda0436e2009-05-22 14:51:39 -04007071 }
7072
7073 /* Arm the CQs and then EQs on device */
7074 lpfc_sli4_arm_cqeq_intr(phba);
7075
7076 /* Indicate device interrupt mode */
7077 phba->sli4_hba.intr_enable = 1;
7078
7079 /* Allow asynchronous mailbox command to go through */
7080 spin_lock_irq(&phba->hbalock);
7081 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
7082 spin_unlock_irq(&phba->hbalock);
7083
7084 /* Post receive buffers to the device */
7085 lpfc_sli4_rb_setup(phba);
7086
James Smartfc2b9892010-02-26 14:15:29 -05007087 /* Reset HBA FCF states after HBA reset */
7088 phba->fcf.fcf_flag = 0;
7089 phba->fcf.current_rec.flag = 0;
7090
James Smartda0436e2009-05-22 14:51:39 -04007091 /* Start the ELS watchdog timer */
James Smart8fa38512009-07-19 10:01:03 -04007092 mod_timer(&vport->els_tmofunc,
James Smart256ec0d2013-04-17 20:14:58 -04007093 jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov * 2)));
James Smartda0436e2009-05-22 14:51:39 -04007094
7095 /* Start heart beat timer */
7096 mod_timer(&phba->hb_tmofunc,
James Smart256ec0d2013-04-17 20:14:58 -04007097 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
James Smartda0436e2009-05-22 14:51:39 -04007098 phba->hb_outstanding = 0;
7099 phba->last_completion_time = jiffies;
7100
7101 /* Start error attention (ERATT) polling timer */
James Smart256ec0d2013-04-17 20:14:58 -04007102 mod_timer(&phba->eratt_poll,
James Smart65791f12016-07-06 12:35:56 -07007103 jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
James Smartda0436e2009-05-22 14:51:39 -04007104
James Smart75baf692010-06-08 18:31:21 -04007105 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
7106 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
7107 rc = pci_enable_pcie_error_reporting(phba->pcidev);
7108 if (!rc) {
7109 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7110 "2829 This device supports "
7111 "Advanced Error Reporting (AER)\n");
7112 spin_lock_irq(&phba->hbalock);
7113 phba->hba_flag |= HBA_AER_ENABLED;
7114 spin_unlock_irq(&phba->hbalock);
7115 } else {
7116 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7117 "2830 This device does not support "
7118 "Advanced Error Reporting (AER)\n");
7119 phba->cfg_aer_support = 0;
7120 }
James Smart0a96e972011-07-22 18:37:28 -04007121 rc = 0;
James Smart75baf692010-06-08 18:31:21 -04007122 }
7123
James Smartda0436e2009-05-22 14:51:39 -04007124 /*
7125 * The port is ready, set the host's link state to LINK_DOWN
7126 * in preparation for link interrupts.
7127 */
James Smartda0436e2009-05-22 14:51:39 -04007128 spin_lock_irq(&phba->hbalock);
7129 phba->link_state = LPFC_LINK_DOWN;
7130 spin_unlock_irq(&phba->hbalock);
James Smart026abb82011-12-13 13:20:45 -05007131 if (!(phba->hba_flag & HBA_FCOE_MODE) &&
7132 (phba->hba_flag & LINK_DISABLED)) {
7133 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
7134 "3103 Adapter Link is disabled.\n");
7135 lpfc_down_link(phba, mboxq);
7136 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7137 if (rc != MBX_SUCCESS) {
7138 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
7139 "3104 Adapter failed to issue "
7140 "DOWN_LINK mbox cmd, rc:x%x\n", rc);
7141 goto out_unset_queue;
7142 }
7143 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
James Smart1b511972011-12-13 13:23:09 -05007144 /* don't perform init_link on SLI4 FC port loopback test */
7145 if (!(phba->link_flag & LS_LOOPBACK_MODE)) {
7146 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
7147 if (rc)
7148 goto out_unset_queue;
7149 }
James Smart5350d872011-10-10 21:33:49 -04007150 }
7151 mempool_free(mboxq, phba->mbox_mem_pool);
7152 return rc;
James Smart76a95d72010-11-20 23:11:48 -05007153out_unset_queue:
James Smartda0436e2009-05-22 14:51:39 -04007154 /* Unset all the queues set up in this routine when error out */
James Smart5350d872011-10-10 21:33:49 -04007155 lpfc_sli4_queue_unset(phba);
7156out_destroy_queue:
James Smart6c621a22017-05-15 15:20:45 -07007157 lpfc_free_iocb_list(phba);
James Smart5350d872011-10-10 21:33:49 -04007158 lpfc_sli4_queue_destroy(phba);
James Smartda0436e2009-05-22 14:51:39 -04007159out_stop_timers:
James Smart5350d872011-10-10 21:33:49 -04007160 lpfc_stop_hba_timers(phba);
James Smartda0436e2009-05-22 14:51:39 -04007161out_free_mbox:
7162 mempool_free(mboxq, phba->mbox_mem_pool);
7163 return rc;
7164}
James Smarte59058c2008-08-24 21:49:00 -04007165
7166/**
James Smart3621a712009-04-06 18:47:14 -04007167 * lpfc_mbox_timeout - Timeout call back function for mbox timer
James Smarte59058c2008-08-24 21:49:00 -04007168 * @ptr: context object - pointer to hba structure.
dea31012005-04-17 16:05:31 -05007169 *
James Smarte59058c2008-08-24 21:49:00 -04007170 * This is the callback function for mailbox timer. The mailbox
7171 * timer is armed when a new mailbox command is issued and the timer
7172 * is deleted when the mailbox complete. The function is called by
7173 * the kernel timer code when a mailbox does not complete within
7174 * expected time. This function wakes up the worker thread to
7175 * process the mailbox timeout and returns. All the processing is
7176 * done by the worker thread function lpfc_mbox_timeout_handler.
7177 **/
dea31012005-04-17 16:05:31 -05007178void
7179lpfc_mbox_timeout(unsigned long ptr)
7180{
James Smart92d7f7b2007-06-17 19:56:38 -05007181 struct lpfc_hba *phba = (struct lpfc_hba *) ptr;
dea31012005-04-17 16:05:31 -05007182 unsigned long iflag;
James Smart2e0fef82007-06-17 19:56:36 -05007183 uint32_t tmo_posted;
dea31012005-04-17 16:05:31 -05007184
James Smart2e0fef82007-06-17 19:56:36 -05007185 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
James Smart92d7f7b2007-06-17 19:56:38 -05007186 tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO;
James Smart2e0fef82007-06-17 19:56:36 -05007187 if (!tmo_posted)
7188 phba->pport->work_port_events |= WORKER_MBOX_TMO;
7189 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
7190
James Smart5e9d9b82008-06-14 22:52:53 -04007191 if (!tmo_posted)
7192 lpfc_worker_wake_up(phba);
7193 return;
dea31012005-04-17 16:05:31 -05007194}
7195
James Smarte8d3c3b2013-10-10 12:21:30 -04007196/**
7197 * lpfc_sli4_mbox_completions_pending - check to see if any mailbox completions
7198 * are pending
7199 * @phba: Pointer to HBA context object.
7200 *
7201 * This function checks if any mailbox completions are present on the mailbox
7202 * completion queue.
7203 **/
Nicholas Krause3bb11fc2015-08-31 16:48:13 -04007204static bool
James Smarte8d3c3b2013-10-10 12:21:30 -04007205lpfc_sli4_mbox_completions_pending(struct lpfc_hba *phba)
7206{
7207
7208 uint32_t idx;
7209 struct lpfc_queue *mcq;
7210 struct lpfc_mcqe *mcqe;
7211 bool pending_completions = false;
7212
7213 if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
7214 return false;
7215
7216 /* Check for completions on mailbox completion queue */
7217
7218 mcq = phba->sli4_hba.mbx_cq;
7219 idx = mcq->hba_index;
7220 while (bf_get_le32(lpfc_cqe_valid, mcq->qe[idx].cqe)) {
7221 mcqe = (struct lpfc_mcqe *)mcq->qe[idx].cqe;
7222 if (bf_get_le32(lpfc_trailer_completed, mcqe) &&
7223 (!bf_get_le32(lpfc_trailer_async, mcqe))) {
7224 pending_completions = true;
7225 break;
7226 }
7227 idx = (idx + 1) % mcq->entry_count;
7228 if (mcq->hba_index == idx)
7229 break;
7230 }
7231 return pending_completions;
7232
7233}
7234
7235/**
7236 * lpfc_sli4_process_missed_mbox_completions - process mbox completions
7237 * that were missed.
7238 * @phba: Pointer to HBA context object.
7239 *
7240 * For sli4, it is possible to miss an interrupt. As such mbox completions
7241 * maybe missed causing erroneous mailbox timeouts to occur. This function
7242 * checks to see if mbox completions are on the mailbox completion queue
7243 * and will process all the completions associated with the eq for the
7244 * mailbox completion queue.
7245 **/
7246bool
7247lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba *phba)
7248{
7249
7250 uint32_t eqidx;
7251 struct lpfc_queue *fpeq = NULL;
7252 struct lpfc_eqe *eqe;
7253 bool mbox_pending;
7254
7255 if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
7256 return false;
7257
7258 /* Find the eq associated with the mcq */
7259
7260 if (phba->sli4_hba.hba_eq)
James Smart895427b2017-02-12 13:52:30 -08007261 for (eqidx = 0; eqidx < phba->io_channel_irqs; eqidx++)
James Smarte8d3c3b2013-10-10 12:21:30 -04007262 if (phba->sli4_hba.hba_eq[eqidx]->queue_id ==
7263 phba->sli4_hba.mbx_cq->assoc_qid) {
7264 fpeq = phba->sli4_hba.hba_eq[eqidx];
7265 break;
7266 }
7267 if (!fpeq)
7268 return false;
7269
7270 /* Turn off interrupts from this EQ */
7271
7272 lpfc_sli4_eq_clr_intr(fpeq);
7273
7274 /* Check to see if a mbox completion is pending */
7275
7276 mbox_pending = lpfc_sli4_mbox_completions_pending(phba);
7277
7278 /*
7279 * If a mbox completion is pending, process all the events on EQ
7280 * associated with the mbox completion queue (this could include
7281 * mailbox commands, async events, els commands, receive queue data
7282 * and fcp commands)
7283 */
7284
7285 if (mbox_pending)
7286 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
7287 lpfc_sli4_hba_handle_eqe(phba, eqe, eqidx);
7288 fpeq->EQ_processed++;
7289 }
7290
7291 /* Always clear and re-arm the EQ */
7292
7293 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
7294
7295 return mbox_pending;
7296
7297}
James Smarte59058c2008-08-24 21:49:00 -04007298
7299/**
James Smart3621a712009-04-06 18:47:14 -04007300 * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
James Smarte59058c2008-08-24 21:49:00 -04007301 * @phba: Pointer to HBA context object.
7302 *
7303 * This function is called from worker thread when a mailbox command times out.
7304 * The caller is not required to hold any locks. This function will reset the
7305 * HBA and recover all the pending commands.
7306 **/
dea31012005-04-17 16:05:31 -05007307void
7308lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
7309{
James Smart2e0fef82007-06-17 19:56:36 -05007310 LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active;
James Smarteb016562014-09-03 12:58:06 -04007311 MAILBOX_t *mb = NULL;
7312
James Smart1dcb58e2007-04-25 09:51:30 -04007313 struct lpfc_sli *psli = &phba->sli;
dea31012005-04-17 16:05:31 -05007314
James Smarte8d3c3b2013-10-10 12:21:30 -04007315 /* If the mailbox completed, process the completion and return */
7316 if (lpfc_sli4_process_missed_mbox_completions(phba))
7317 return;
7318
James Smarteb016562014-09-03 12:58:06 -04007319 if (pmbox != NULL)
7320 mb = &pmbox->u.mb;
James Smarta257bf92009-04-06 18:48:10 -04007321 /* Check the pmbox pointer first. There is a race condition
7322 * between the mbox timeout handler getting executed in the
7323 * worklist and the mailbox actually completing. When this
7324 * race condition occurs, the mbox_active will be NULL.
7325 */
7326 spin_lock_irq(&phba->hbalock);
7327 if (pmbox == NULL) {
7328 lpfc_printf_log(phba, KERN_WARNING,
7329 LOG_MBOX | LOG_SLI,
7330 "0353 Active Mailbox cleared - mailbox timeout "
7331 "exiting\n");
7332 spin_unlock_irq(&phba->hbalock);
7333 return;
7334 }
7335
dea31012005-04-17 16:05:31 -05007336 /* Mbox cmd <mbxCommand> timeout */
James Smarted957682007-06-17 19:56:37 -05007337 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04007338 "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n",
James Smart92d7f7b2007-06-17 19:56:38 -05007339 mb->mbxCommand,
7340 phba->pport->port_state,
7341 phba->sli.sli_flag,
7342 phba->sli.mbox_active);
James Smarta257bf92009-04-06 18:48:10 -04007343 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05007344
James Smart1dcb58e2007-04-25 09:51:30 -04007345 /* Setting state unknown so lpfc_sli_abort_iocb_ring
7346 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
Lucas De Marchi25985ed2011-03-30 22:57:33 -03007347 * it to fail all outstanding SCSI IO.
James Smart1dcb58e2007-04-25 09:51:30 -04007348 */
James Smart2e0fef82007-06-17 19:56:36 -05007349 spin_lock_irq(&phba->pport->work_port_lock);
7350 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
7351 spin_unlock_irq(&phba->pport->work_port_lock);
7352 spin_lock_irq(&phba->hbalock);
7353 phba->link_state = LPFC_LINK_UNKNOWN;
James Smartf4b4c682009-05-22 14:53:12 -04007354 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
James Smart2e0fef82007-06-17 19:56:36 -05007355 spin_unlock_irq(&phba->hbalock);
James Smart1dcb58e2007-04-25 09:51:30 -04007356
James Smartdb55fba2014-04-04 13:52:02 -04007357 lpfc_sli_abort_fcp_rings(phba);
James Smart1dcb58e2007-04-25 09:51:30 -04007358
7359 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
James Smart76bb24e2007-10-27 13:38:00 -04007360 "0345 Resetting board due to mailbox timeout\n");
James Smart3772a992009-05-22 14:50:54 -04007361
7362 /* Reset the HBA device */
7363 lpfc_reset_hba(phba);
dea31012005-04-17 16:05:31 -05007364}
7365
James Smarte59058c2008-08-24 21:49:00 -04007366/**
James Smart3772a992009-05-22 14:50:54 -04007367 * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
James Smarte59058c2008-08-24 21:49:00 -04007368 * @phba: Pointer to HBA context object.
7369 * @pmbox: Pointer to mailbox object.
7370 * @flag: Flag indicating how the mailbox need to be processed.
7371 *
7372 * This function is called by discovery code and HBA management code
James Smart3772a992009-05-22 14:50:54 -04007373 * to submit a mailbox command to firmware with SLI-3 interface spec. This
7374 * function gets the hbalock to protect the data structures.
James Smarte59058c2008-08-24 21:49:00 -04007375 * The mailbox command can be submitted in polling mode, in which case
7376 * this function will wait in a polling loop for the completion of the
7377 * mailbox.
7378 * If the mailbox is submitted in no_wait mode (not polling) the
7379 * function will submit the command and returns immediately without waiting
7380 * for the mailbox completion. The no_wait is supported only when HBA
7381 * is in SLI2/SLI3 mode - interrupts are enabled.
7382 * The SLI interface allows only one mailbox pending at a time. If the
7383 * mailbox is issued in polling mode and there is already a mailbox
7384 * pending, then the function will return an error. If the mailbox is issued
7385 * in NO_WAIT mode and there is a mailbox pending already, the function
7386 * will return MBX_BUSY after queuing the mailbox into mailbox queue.
7387 * The sli layer owns the mailbox object until the completion of mailbox
7388 * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
7389 * return codes the caller owns the mailbox command after the return of
7390 * the function.
7391 **/
James Smart3772a992009-05-22 14:50:54 -04007392static int
7393lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox,
7394 uint32_t flag)
dea31012005-04-17 16:05:31 -05007395{
Randy Dunlapbf07bde2013-02-22 10:23:54 -08007396 MAILBOX_t *mbx;
James Smart2e0fef82007-06-17 19:56:36 -05007397 struct lpfc_sli *psli = &phba->sli;
dea31012005-04-17 16:05:31 -05007398 uint32_t status, evtctr;
James Smart9940b972011-03-11 16:06:12 -05007399 uint32_t ha_copy, hc_copy;
dea31012005-04-17 16:05:31 -05007400 int i;
James Smart09372822008-01-11 01:52:54 -05007401 unsigned long timeout;
dea31012005-04-17 16:05:31 -05007402 unsigned long drvr_flag = 0;
James Smart34b02dc2008-08-24 21:49:55 -04007403 uint32_t word0, ldata;
dea31012005-04-17 16:05:31 -05007404 void __iomem *to_slim;
James Smart58da1ff2008-04-07 10:15:56 -04007405 int processing_queue = 0;
7406
7407 spin_lock_irqsave(&phba->hbalock, drvr_flag);
7408 if (!pmbox) {
James Smart8568a4d2009-07-19 10:01:16 -04007409 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
James Smart58da1ff2008-04-07 10:15:56 -04007410 /* processing mbox queue from intr_handler */
James Smart3772a992009-05-22 14:50:54 -04007411 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
7412 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7413 return MBX_SUCCESS;
7414 }
James Smart58da1ff2008-04-07 10:15:56 -04007415 processing_queue = 1;
James Smart58da1ff2008-04-07 10:15:56 -04007416 pmbox = lpfc_mbox_get(phba);
7417 if (!pmbox) {
7418 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7419 return MBX_SUCCESS;
7420 }
7421 }
dea31012005-04-17 16:05:31 -05007422
James Smarted957682007-06-17 19:56:37 -05007423 if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
James Smart92d7f7b2007-06-17 19:56:38 -05007424 pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
James Smarted957682007-06-17 19:56:37 -05007425 if(!pmbox->vport) {
James Smart58da1ff2008-04-07 10:15:56 -04007426 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
James Smarted957682007-06-17 19:56:37 -05007427 lpfc_printf_log(phba, KERN_ERR,
James Smart92d7f7b2007-06-17 19:56:38 -05007428 LOG_MBOX | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04007429 "1806 Mbox x%x failed. No vport\n",
James Smart3772a992009-05-22 14:50:54 -04007430 pmbox->u.mb.mbxCommand);
James Smarted957682007-06-17 19:56:37 -05007431 dump_stack();
James Smart58da1ff2008-04-07 10:15:56 -04007432 goto out_not_finished;
James Smarted957682007-06-17 19:56:37 -05007433 }
7434 }
7435
Linas Vepstas8d63f372007-02-14 14:28:36 -06007436 /* If the PCI channel is in offline state, do not post mbox. */
James Smart58da1ff2008-04-07 10:15:56 -04007437 if (unlikely(pci_channel_offline(phba->pcidev))) {
7438 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7439 goto out_not_finished;
7440 }
Linas Vepstas8d63f372007-02-14 14:28:36 -06007441
James Smarta257bf92009-04-06 18:48:10 -04007442 /* If HBA has a deferred error attention, fail the iocb. */
7443 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
7444 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7445 goto out_not_finished;
7446 }
7447
dea31012005-04-17 16:05:31 -05007448 psli = &phba->sli;
James Smart92d7f7b2007-06-17 19:56:38 -05007449
Randy Dunlapbf07bde2013-02-22 10:23:54 -08007450 mbx = &pmbox->u.mb;
dea31012005-04-17 16:05:31 -05007451 status = MBX_SUCCESS;
7452
James Smart2e0fef82007-06-17 19:56:36 -05007453 if (phba->link_state == LPFC_HBA_ERROR) {
7454 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
Jamie Wellnitz41415862006-02-28 19:25:27 -05007455
7456 /* Mbox command <mbxCommand> cannot issue */
James Smart3772a992009-05-22 14:50:54 -04007457 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7458 "(%d):0311 Mailbox command x%x cannot "
7459 "issue Data: x%x x%x\n",
7460 pmbox->vport ? pmbox->vport->vpi : 0,
7461 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
James Smart58da1ff2008-04-07 10:15:56 -04007462 goto out_not_finished;
Jamie Wellnitz41415862006-02-28 19:25:27 -05007463 }
7464
Randy Dunlapbf07bde2013-02-22 10:23:54 -08007465 if (mbx->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT) {
James Smart9940b972011-03-11 16:06:12 -05007466 if (lpfc_readl(phba->HCregaddr, &hc_copy) ||
7467 !(hc_copy & HC_MBINT_ENA)) {
7468 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7469 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
James Smart3772a992009-05-22 14:50:54 -04007470 "(%d):2528 Mailbox command x%x cannot "
7471 "issue Data: x%x x%x\n",
7472 pmbox->vport ? pmbox->vport->vpi : 0,
7473 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
James Smart9940b972011-03-11 16:06:12 -05007474 goto out_not_finished;
7475 }
James Smart92908312006-03-07 15:04:13 -05007476 }
7477
dea31012005-04-17 16:05:31 -05007478 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7479 /* Polling for a mbox command when another one is already active
7480 * is not allowed in SLI. Also, the driver must have established
7481 * SLI2 mode to queue and process multiple mbox commands.
7482 */
7483
7484 if (flag & MBX_POLL) {
James Smart2e0fef82007-06-17 19:56:36 -05007485 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
dea31012005-04-17 16:05:31 -05007486
7487 /* Mbox command <mbxCommand> cannot issue */
James Smart3772a992009-05-22 14:50:54 -04007488 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7489 "(%d):2529 Mailbox command x%x "
7490 "cannot issue Data: x%x x%x\n",
7491 pmbox->vport ? pmbox->vport->vpi : 0,
7492 pmbox->u.mb.mbxCommand,
7493 psli->sli_flag, flag);
James Smart58da1ff2008-04-07 10:15:56 -04007494 goto out_not_finished;
dea31012005-04-17 16:05:31 -05007495 }
7496
James Smart3772a992009-05-22 14:50:54 -04007497 if (!(psli->sli_flag & LPFC_SLI_ACTIVE)) {
James Smart2e0fef82007-06-17 19:56:36 -05007498 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
dea31012005-04-17 16:05:31 -05007499 /* Mbox command <mbxCommand> cannot issue */
James Smart3772a992009-05-22 14:50:54 -04007500 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7501 "(%d):2530 Mailbox command x%x "
7502 "cannot issue Data: x%x x%x\n",
7503 pmbox->vport ? pmbox->vport->vpi : 0,
7504 pmbox->u.mb.mbxCommand,
7505 psli->sli_flag, flag);
James Smart58da1ff2008-04-07 10:15:56 -04007506 goto out_not_finished;
dea31012005-04-17 16:05:31 -05007507 }
7508
dea31012005-04-17 16:05:31 -05007509 /* Another mailbox command is still being processed, queue this
7510 * command to be processed later.
7511 */
7512 lpfc_mbox_put(phba, pmbox);
7513
7514 /* Mbox cmd issue - BUSY */
James Smarted957682007-06-17 19:56:37 -05007515 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04007516 "(%d):0308 Mbox cmd issue - BUSY Data: "
James Smart92d7f7b2007-06-17 19:56:38 -05007517 "x%x x%x x%x x%x\n",
James Smart92d7f7b2007-06-17 19:56:38 -05007518 pmbox->vport ? pmbox->vport->vpi : 0xffffff,
James Smarte92974f2017-06-01 21:07:06 -07007519 mbx->mbxCommand,
7520 phba->pport ? phba->pport->port_state : 0xff,
James Smart92d7f7b2007-06-17 19:56:38 -05007521 psli->sli_flag, flag);
dea31012005-04-17 16:05:31 -05007522
7523 psli->slistat.mbox_busy++;
James Smart2e0fef82007-06-17 19:56:36 -05007524 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
dea31012005-04-17 16:05:31 -05007525
James Smart858c9f62007-06-17 19:56:39 -05007526 if (pmbox->vport) {
7527 lpfc_debugfs_disc_trc(pmbox->vport,
7528 LPFC_DISC_TRC_MBOX_VPORT,
7529 "MBOX Bsy vport: cmd:x%x mb:x%x x%x",
Randy Dunlapbf07bde2013-02-22 10:23:54 -08007530 (uint32_t)mbx->mbxCommand,
7531 mbx->un.varWords[0], mbx->un.varWords[1]);
James Smart858c9f62007-06-17 19:56:39 -05007532 }
7533 else {
7534 lpfc_debugfs_disc_trc(phba->pport,
7535 LPFC_DISC_TRC_MBOX,
7536 "MBOX Bsy: cmd:x%x mb:x%x x%x",
Randy Dunlapbf07bde2013-02-22 10:23:54 -08007537 (uint32_t)mbx->mbxCommand,
7538 mbx->un.varWords[0], mbx->un.varWords[1]);
James Smart858c9f62007-06-17 19:56:39 -05007539 }
7540
James Smart2e0fef82007-06-17 19:56:36 -05007541 return MBX_BUSY;
dea31012005-04-17 16:05:31 -05007542 }
7543
dea31012005-04-17 16:05:31 -05007544 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
7545
7546 /* If we are not polling, we MUST be in SLI2 mode */
7547 if (flag != MBX_POLL) {
James Smart3772a992009-05-22 14:50:54 -04007548 if (!(psli->sli_flag & LPFC_SLI_ACTIVE) &&
Randy Dunlapbf07bde2013-02-22 10:23:54 -08007549 (mbx->mbxCommand != MBX_KILL_BOARD)) {
dea31012005-04-17 16:05:31 -05007550 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
James Smart2e0fef82007-06-17 19:56:36 -05007551 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
dea31012005-04-17 16:05:31 -05007552 /* Mbox command <mbxCommand> cannot issue */
James Smart3772a992009-05-22 14:50:54 -04007553 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7554 "(%d):2531 Mailbox command x%x "
7555 "cannot issue Data: x%x x%x\n",
7556 pmbox->vport ? pmbox->vport->vpi : 0,
7557 pmbox->u.mb.mbxCommand,
7558 psli->sli_flag, flag);
James Smart58da1ff2008-04-07 10:15:56 -04007559 goto out_not_finished;
dea31012005-04-17 16:05:31 -05007560 }
7561 /* timeout active mbox command */
James Smart256ec0d2013-04-17 20:14:58 -04007562 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
7563 1000);
7564 mod_timer(&psli->mbox_tmo, jiffies + timeout);
dea31012005-04-17 16:05:31 -05007565 }
7566
7567 /* Mailbox cmd <cmd> issue */
James Smarted957682007-06-17 19:56:37 -05007568 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04007569 "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
James Smart92d7f7b2007-06-17 19:56:38 -05007570 "x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04007571 pmbox->vport ? pmbox->vport->vpi : 0,
James Smarte92974f2017-06-01 21:07:06 -07007572 mbx->mbxCommand,
7573 phba->pport ? phba->pport->port_state : 0xff,
James Smart92d7f7b2007-06-17 19:56:38 -05007574 psli->sli_flag, flag);
dea31012005-04-17 16:05:31 -05007575
Randy Dunlapbf07bde2013-02-22 10:23:54 -08007576 if (mbx->mbxCommand != MBX_HEARTBEAT) {
James Smart858c9f62007-06-17 19:56:39 -05007577 if (pmbox->vport) {
7578 lpfc_debugfs_disc_trc(pmbox->vport,
7579 LPFC_DISC_TRC_MBOX_VPORT,
7580 "MBOX Send vport: cmd:x%x mb:x%x x%x",
Randy Dunlapbf07bde2013-02-22 10:23:54 -08007581 (uint32_t)mbx->mbxCommand,
7582 mbx->un.varWords[0], mbx->un.varWords[1]);
James Smart858c9f62007-06-17 19:56:39 -05007583 }
7584 else {
7585 lpfc_debugfs_disc_trc(phba->pport,
7586 LPFC_DISC_TRC_MBOX,
7587 "MBOX Send: cmd:x%x mb:x%x x%x",
Randy Dunlapbf07bde2013-02-22 10:23:54 -08007588 (uint32_t)mbx->mbxCommand,
7589 mbx->un.varWords[0], mbx->un.varWords[1]);
James Smart858c9f62007-06-17 19:56:39 -05007590 }
7591 }
7592
dea31012005-04-17 16:05:31 -05007593 psli->slistat.mbox_cmd++;
7594 evtctr = psli->slistat.mbox_event;
7595
7596 /* next set own bit for the adapter and copy over command word */
Randy Dunlapbf07bde2013-02-22 10:23:54 -08007597 mbx->mbxOwner = OWN_CHIP;
dea31012005-04-17 16:05:31 -05007598
James Smart3772a992009-05-22 14:50:54 -04007599 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
James Smart7a470272010-03-15 11:25:20 -04007600 /* Populate mbox extension offset word. */
7601 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len) {
Randy Dunlapbf07bde2013-02-22 10:23:54 -08007602 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
James Smart7a470272010-03-15 11:25:20 -04007603 = (uint8_t *)phba->mbox_ext
7604 - (uint8_t *)phba->mbox;
7605 }
7606
7607 /* Copy the mailbox extension data */
7608 if (pmbox->in_ext_byte_len && pmbox->context2) {
7609 lpfc_sli_pcimem_bcopy(pmbox->context2,
7610 (uint8_t *)phba->mbox_ext,
7611 pmbox->in_ext_byte_len);
7612 }
7613 /* Copy command data to host SLIM area */
Randy Dunlapbf07bde2013-02-22 10:23:54 -08007614 lpfc_sli_pcimem_bcopy(mbx, phba->mbox, MAILBOX_CMD_SIZE);
dea31012005-04-17 16:05:31 -05007615 } else {
James Smart7a470272010-03-15 11:25:20 -04007616 /* Populate mbox extension offset word. */
7617 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len)
Randy Dunlapbf07bde2013-02-22 10:23:54 -08007618 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
James Smart7a470272010-03-15 11:25:20 -04007619 = MAILBOX_HBA_EXT_OFFSET;
7620
7621 /* Copy the mailbox extension data */
James Smart895427b2017-02-12 13:52:30 -08007622 if (pmbox->in_ext_byte_len && pmbox->context2)
James Smart7a470272010-03-15 11:25:20 -04007623 lpfc_memcpy_to_slim(phba->MBslimaddr +
7624 MAILBOX_HBA_EXT_OFFSET,
7625 pmbox->context2, pmbox->in_ext_byte_len);
7626
James Smart895427b2017-02-12 13:52:30 -08007627 if (mbx->mbxCommand == MBX_CONFIG_PORT)
dea31012005-04-17 16:05:31 -05007628 /* copy command data into host mbox for cmpl */
James Smart895427b2017-02-12 13:52:30 -08007629 lpfc_sli_pcimem_bcopy(mbx, phba->mbox,
7630 MAILBOX_CMD_SIZE);
dea31012005-04-17 16:05:31 -05007631
7632 /* First copy mbox command data to HBA SLIM, skip past first
7633 word */
7634 to_slim = phba->MBslimaddr + sizeof (uint32_t);
Randy Dunlapbf07bde2013-02-22 10:23:54 -08007635 lpfc_memcpy_to_slim(to_slim, &mbx->un.varWords[0],
dea31012005-04-17 16:05:31 -05007636 MAILBOX_CMD_SIZE - sizeof (uint32_t));
7637
7638 /* Next copy over first word, with mbxOwner set */
Randy Dunlapbf07bde2013-02-22 10:23:54 -08007639 ldata = *((uint32_t *)mbx);
dea31012005-04-17 16:05:31 -05007640 to_slim = phba->MBslimaddr;
7641 writel(ldata, to_slim);
7642 readl(to_slim); /* flush */
7643
James Smart895427b2017-02-12 13:52:30 -08007644 if (mbx->mbxCommand == MBX_CONFIG_PORT)
dea31012005-04-17 16:05:31 -05007645 /* switch over to host mailbox */
James Smart3772a992009-05-22 14:50:54 -04007646 psli->sli_flag |= LPFC_SLI_ACTIVE;
dea31012005-04-17 16:05:31 -05007647 }
7648
7649 wmb();
dea31012005-04-17 16:05:31 -05007650
7651 switch (flag) {
7652 case MBX_NOWAIT:
James Smart09372822008-01-11 01:52:54 -05007653 /* Set up reference to mailbox command */
dea31012005-04-17 16:05:31 -05007654 psli->mbox_active = pmbox;
James Smart09372822008-01-11 01:52:54 -05007655 /* Interrupt board to do it */
7656 writel(CA_MBATT, phba->CAregaddr);
7657 readl(phba->CAregaddr); /* flush */
7658 /* Don't wait for it to finish, just return */
dea31012005-04-17 16:05:31 -05007659 break;
7660
7661 case MBX_POLL:
James Smart09372822008-01-11 01:52:54 -05007662 /* Set up null reference to mailbox command */
dea31012005-04-17 16:05:31 -05007663 psli->mbox_active = NULL;
James Smart09372822008-01-11 01:52:54 -05007664 /* Interrupt board to do it */
7665 writel(CA_MBATT, phba->CAregaddr);
7666 readl(phba->CAregaddr); /* flush */
7667
James Smart3772a992009-05-22 14:50:54 -04007668 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
dea31012005-04-17 16:05:31 -05007669 /* First read mbox status word */
James Smart34b02dc2008-08-24 21:49:55 -04007670 word0 = *((uint32_t *)phba->mbox);
dea31012005-04-17 16:05:31 -05007671 word0 = le32_to_cpu(word0);
7672 } else {
7673 /* First read mbox status word */
James Smart9940b972011-03-11 16:06:12 -05007674 if (lpfc_readl(phba->MBslimaddr, &word0)) {
7675 spin_unlock_irqrestore(&phba->hbalock,
7676 drvr_flag);
7677 goto out_not_finished;
7678 }
dea31012005-04-17 16:05:31 -05007679 }
7680
7681 /* Read the HBA Host Attention Register */
James Smart9940b972011-03-11 16:06:12 -05007682 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
7683 spin_unlock_irqrestore(&phba->hbalock,
7684 drvr_flag);
7685 goto out_not_finished;
7686 }
James Smarta183a152011-10-10 21:32:43 -04007687 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
7688 1000) + jiffies;
James Smart09372822008-01-11 01:52:54 -05007689 i = 0;
dea31012005-04-17 16:05:31 -05007690 /* Wait for command to complete */
Jamie Wellnitz41415862006-02-28 19:25:27 -05007691 while (((word0 & OWN_CHIP) == OWN_CHIP) ||
7692 (!(ha_copy & HA_MBATT) &&
James Smart2e0fef82007-06-17 19:56:36 -05007693 (phba->link_state > LPFC_WARM_START))) {
James Smart09372822008-01-11 01:52:54 -05007694 if (time_after(jiffies, timeout)) {
dea31012005-04-17 16:05:31 -05007695 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
James Smart2e0fef82007-06-17 19:56:36 -05007696 spin_unlock_irqrestore(&phba->hbalock,
dea31012005-04-17 16:05:31 -05007697 drvr_flag);
James Smart58da1ff2008-04-07 10:15:56 -04007698 goto out_not_finished;
dea31012005-04-17 16:05:31 -05007699 }
7700
7701 /* Check if we took a mbox interrupt while we were
7702 polling */
7703 if (((word0 & OWN_CHIP) != OWN_CHIP)
7704 && (evtctr != psli->slistat.mbox_event))
7705 break;
7706
James Smart09372822008-01-11 01:52:54 -05007707 if (i++ > 10) {
7708 spin_unlock_irqrestore(&phba->hbalock,
7709 drvr_flag);
7710 msleep(1);
7711 spin_lock_irqsave(&phba->hbalock, drvr_flag);
7712 }
dea31012005-04-17 16:05:31 -05007713
James Smart3772a992009-05-22 14:50:54 -04007714 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
dea31012005-04-17 16:05:31 -05007715 /* First copy command data */
James Smart34b02dc2008-08-24 21:49:55 -04007716 word0 = *((uint32_t *)phba->mbox);
dea31012005-04-17 16:05:31 -05007717 word0 = le32_to_cpu(word0);
Randy Dunlapbf07bde2013-02-22 10:23:54 -08007718 if (mbx->mbxCommand == MBX_CONFIG_PORT) {
dea31012005-04-17 16:05:31 -05007719 MAILBOX_t *slimmb;
James Smart34b02dc2008-08-24 21:49:55 -04007720 uint32_t slimword0;
dea31012005-04-17 16:05:31 -05007721 /* Check real SLIM for any errors */
7722 slimword0 = readl(phba->MBslimaddr);
7723 slimmb = (MAILBOX_t *) & slimword0;
7724 if (((slimword0 & OWN_CHIP) != OWN_CHIP)
7725 && slimmb->mbxStatus) {
7726 psli->sli_flag &=
James Smart3772a992009-05-22 14:50:54 -04007727 ~LPFC_SLI_ACTIVE;
dea31012005-04-17 16:05:31 -05007728 word0 = slimword0;
7729 }
7730 }
7731 } else {
7732 /* First copy command data */
7733 word0 = readl(phba->MBslimaddr);
7734 }
7735 /* Read the HBA Host Attention Register */
James Smart9940b972011-03-11 16:06:12 -05007736 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
7737 spin_unlock_irqrestore(&phba->hbalock,
7738 drvr_flag);
7739 goto out_not_finished;
7740 }
dea31012005-04-17 16:05:31 -05007741 }
7742
James Smart3772a992009-05-22 14:50:54 -04007743 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
dea31012005-04-17 16:05:31 -05007744 /* copy results back to user */
James Smart2ea259e2017-02-12 13:52:27 -08007745 lpfc_sli_pcimem_bcopy(phba->mbox, mbx,
7746 MAILBOX_CMD_SIZE);
James Smart7a470272010-03-15 11:25:20 -04007747 /* Copy the mailbox extension data */
7748 if (pmbox->out_ext_byte_len && pmbox->context2) {
7749 lpfc_sli_pcimem_bcopy(phba->mbox_ext,
7750 pmbox->context2,
7751 pmbox->out_ext_byte_len);
7752 }
dea31012005-04-17 16:05:31 -05007753 } else {
7754 /* First copy command data */
Randy Dunlapbf07bde2013-02-22 10:23:54 -08007755 lpfc_memcpy_from_slim(mbx, phba->MBslimaddr,
James Smart2ea259e2017-02-12 13:52:27 -08007756 MAILBOX_CMD_SIZE);
James Smart7a470272010-03-15 11:25:20 -04007757 /* Copy the mailbox extension data */
7758 if (pmbox->out_ext_byte_len && pmbox->context2) {
7759 lpfc_memcpy_from_slim(pmbox->context2,
7760 phba->MBslimaddr +
7761 MAILBOX_HBA_EXT_OFFSET,
7762 pmbox->out_ext_byte_len);
dea31012005-04-17 16:05:31 -05007763 }
7764 }
7765
7766 writel(HA_MBATT, phba->HAregaddr);
7767 readl(phba->HAregaddr); /* flush */
7768
7769 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
Randy Dunlapbf07bde2013-02-22 10:23:54 -08007770 status = mbx->mbxStatus;
dea31012005-04-17 16:05:31 -05007771 }
7772
James Smart2e0fef82007-06-17 19:56:36 -05007773 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7774 return status;
James Smart58da1ff2008-04-07 10:15:56 -04007775
7776out_not_finished:
7777 if (processing_queue) {
James Smartda0436e2009-05-22 14:51:39 -04007778 pmbox->u.mb.mbxStatus = MBX_NOT_FINISHED;
James Smart58da1ff2008-04-07 10:15:56 -04007779 lpfc_mbox_cmpl_put(phba, pmbox);
7780 }
7781 return MBX_NOT_FINISHED;
dea31012005-04-17 16:05:31 -05007782}
7783
James Smarte59058c2008-08-24 21:49:00 -04007784/**
James Smartf1126682009-06-10 17:22:44 -04007785 * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
7786 * @phba: Pointer to HBA context object.
7787 *
7788 * The function blocks the posting of SLI4 asynchronous mailbox commands from
7789 * the driver internal pending mailbox queue. It will then try to wait out the
7790 * possible outstanding mailbox command before return.
7791 *
7792 * Returns:
7793 * 0 - the outstanding mailbox command completed; otherwise, the wait for
7794 * the outstanding mailbox command timed out.
7795 **/
7796static int
7797lpfc_sli4_async_mbox_block(struct lpfc_hba *phba)
7798{
7799 struct lpfc_sli *psli = &phba->sli;
James Smartf1126682009-06-10 17:22:44 -04007800 int rc = 0;
James Smarta183a152011-10-10 21:32:43 -04007801 unsigned long timeout = 0;
James Smartf1126682009-06-10 17:22:44 -04007802
7803 /* Mark the asynchronous mailbox command posting as blocked */
7804 spin_lock_irq(&phba->hbalock);
7805 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
James Smartf1126682009-06-10 17:22:44 -04007806 /* Determine how long we might wait for the active mailbox
7807 * command to be gracefully completed by firmware.
7808 */
James Smarta183a152011-10-10 21:32:43 -04007809 if (phba->sli.mbox_active)
7810 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
7811 phba->sli.mbox_active) *
7812 1000) + jiffies;
7813 spin_unlock_irq(&phba->hbalock);
7814
James Smarte8d3c3b2013-10-10 12:21:30 -04007815 /* Make sure the mailbox is really active */
7816 if (timeout)
7817 lpfc_sli4_process_missed_mbox_completions(phba);
7818
James Smartf1126682009-06-10 17:22:44 -04007819 /* Wait for the outstnading mailbox command to complete */
7820 while (phba->sli.mbox_active) {
7821 /* Check active mailbox complete status every 2ms */
7822 msleep(2);
7823 if (time_after(jiffies, timeout)) {
7824 /* Timeout, marked the outstanding cmd not complete */
7825 rc = 1;
7826 break;
7827 }
7828 }
7829
7830 /* Can not cleanly block async mailbox command, fails it */
7831 if (rc) {
7832 spin_lock_irq(&phba->hbalock);
7833 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
7834 spin_unlock_irq(&phba->hbalock);
7835 }
7836 return rc;
7837}
7838
7839/**
7840 * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
7841 * @phba: Pointer to HBA context object.
7842 *
7843 * The function unblocks and resume posting of SLI4 asynchronous mailbox
7844 * commands from the driver internal pending mailbox queue. It makes sure
7845 * that there is no outstanding mailbox command before resuming posting
7846 * asynchronous mailbox commands. If, for any reason, there is outstanding
7847 * mailbox command, it will try to wait it out before resuming asynchronous
7848 * mailbox command posting.
7849 **/
7850static void
7851lpfc_sli4_async_mbox_unblock(struct lpfc_hba *phba)
7852{
7853 struct lpfc_sli *psli = &phba->sli;
7854
7855 spin_lock_irq(&phba->hbalock);
7856 if (!(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
7857 /* Asynchronous mailbox posting is not blocked, do nothing */
7858 spin_unlock_irq(&phba->hbalock);
7859 return;
7860 }
7861
7862 /* Outstanding synchronous mailbox command is guaranteed to be done,
7863 * successful or timeout, after timing-out the outstanding mailbox
7864 * command shall always be removed, so just unblock posting async
7865 * mailbox command and resume
7866 */
7867 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
7868 spin_unlock_irq(&phba->hbalock);
7869
7870 /* wake up worker thread to post asynchronlous mailbox command */
7871 lpfc_worker_wake_up(phba);
7872}
7873
7874/**
James Smart2d843ed2012-09-29 11:29:06 -04007875 * lpfc_sli4_wait_bmbx_ready - Wait for bootstrap mailbox register ready
7876 * @phba: Pointer to HBA context object.
7877 * @mboxq: Pointer to mailbox object.
7878 *
7879 * The function waits for the bootstrap mailbox register ready bit from
7880 * port for twice the regular mailbox command timeout value.
7881 *
7882 * 0 - no timeout on waiting for bootstrap mailbox register ready.
7883 * MBXERR_ERROR - wait for bootstrap mailbox register timed out.
7884 **/
7885static int
7886lpfc_sli4_wait_bmbx_ready(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7887{
7888 uint32_t db_ready;
7889 unsigned long timeout;
7890 struct lpfc_register bmbx_reg;
7891
7892 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mboxq)
7893 * 1000) + jiffies;
7894
7895 do {
7896 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
7897 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
7898 if (!db_ready)
7899 msleep(2);
7900
7901 if (time_after(jiffies, timeout))
7902 return MBXERR_ERROR;
7903 } while (!db_ready);
7904
7905 return 0;
7906}
7907
7908/**
James Smartda0436e2009-05-22 14:51:39 -04007909 * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
7910 * @phba: Pointer to HBA context object.
7911 * @mboxq: Pointer to mailbox object.
7912 *
7913 * The function posts a mailbox to the port. The mailbox is expected
7914 * to be comletely filled in and ready for the port to operate on it.
7915 * This routine executes a synchronous completion operation on the
7916 * mailbox by polling for its completion.
7917 *
7918 * The caller must not be holding any locks when calling this routine.
7919 *
7920 * Returns:
7921 * MBX_SUCCESS - mailbox posted successfully
7922 * Any of the MBX error values.
7923 **/
7924static int
7925lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7926{
7927 int rc = MBX_SUCCESS;
7928 unsigned long iflag;
James Smartda0436e2009-05-22 14:51:39 -04007929 uint32_t mcqe_status;
7930 uint32_t mbx_cmnd;
James Smartda0436e2009-05-22 14:51:39 -04007931 struct lpfc_sli *psli = &phba->sli;
7932 struct lpfc_mqe *mb = &mboxq->u.mqe;
7933 struct lpfc_bmbx_create *mbox_rgn;
7934 struct dma_address *dma_address;
James Smartda0436e2009-05-22 14:51:39 -04007935
7936 /*
7937 * Only one mailbox can be active to the bootstrap mailbox region
7938 * at a time and there is no queueing provided.
7939 */
7940 spin_lock_irqsave(&phba->hbalock, iflag);
7941 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7942 spin_unlock_irqrestore(&phba->hbalock, iflag);
7943 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
James Smarta183a152011-10-10 21:32:43 -04007944 "(%d):2532 Mailbox command x%x (x%x/x%x) "
James Smartda0436e2009-05-22 14:51:39 -04007945 "cannot issue Data: x%x x%x\n",
7946 mboxq->vport ? mboxq->vport->vpi : 0,
7947 mboxq->u.mb.mbxCommand,
James Smarta183a152011-10-10 21:32:43 -04007948 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7949 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
James Smartda0436e2009-05-22 14:51:39 -04007950 psli->sli_flag, MBX_POLL);
7951 return MBXERR_ERROR;
7952 }
7953 /* The server grabs the token and owns it until release */
7954 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
7955 phba->sli.mbox_active = mboxq;
7956 spin_unlock_irqrestore(&phba->hbalock, iflag);
7957
James Smart2d843ed2012-09-29 11:29:06 -04007958 /* wait for bootstrap mbox register for readyness */
7959 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
7960 if (rc)
7961 goto exit;
7962
James Smartda0436e2009-05-22 14:51:39 -04007963 /*
7964 * Initialize the bootstrap memory region to avoid stale data areas
7965 * in the mailbox post. Then copy the caller's mailbox contents to
7966 * the bmbx mailbox region.
7967 */
7968 mbx_cmnd = bf_get(lpfc_mqe_command, mb);
7969 memset(phba->sli4_hba.bmbx.avirt, 0, sizeof(struct lpfc_bmbx_create));
7970 lpfc_sli_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt,
7971 sizeof(struct lpfc_mqe));
7972
7973 /* Post the high mailbox dma address to the port and wait for ready. */
7974 dma_address = &phba->sli4_hba.bmbx.dma_address;
7975 writel(dma_address->addr_hi, phba->sli4_hba.BMBXregaddr);
7976
James Smart2d843ed2012-09-29 11:29:06 -04007977 /* wait for bootstrap mbox register for hi-address write done */
7978 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
7979 if (rc)
7980 goto exit;
James Smartda0436e2009-05-22 14:51:39 -04007981
7982 /* Post the low mailbox dma address to the port. */
7983 writel(dma_address->addr_lo, phba->sli4_hba.BMBXregaddr);
James Smartda0436e2009-05-22 14:51:39 -04007984
James Smart2d843ed2012-09-29 11:29:06 -04007985 /* wait for bootstrap mbox register for low address write done */
7986 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
7987 if (rc)
7988 goto exit;
James Smartda0436e2009-05-22 14:51:39 -04007989
7990 /*
7991 * Read the CQ to ensure the mailbox has completed.
7992 * If so, update the mailbox status so that the upper layers
7993 * can complete the request normally.
7994 */
7995 lpfc_sli_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb,
7996 sizeof(struct lpfc_mqe));
7997 mbox_rgn = (struct lpfc_bmbx_create *) phba->sli4_hba.bmbx.avirt;
7998 lpfc_sli_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe,
7999 sizeof(struct lpfc_mcqe));
8000 mcqe_status = bf_get(lpfc_mcqe_status, &mbox_rgn->mcqe);
James Smart05580562011-05-24 11:40:48 -04008001 /*
8002 * When the CQE status indicates a failure and the mailbox status
8003 * indicates success then copy the CQE status into the mailbox status
8004 * (and prefix it with x4000).
8005 */
James Smartda0436e2009-05-22 14:51:39 -04008006 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
James Smart05580562011-05-24 11:40:48 -04008007 if (bf_get(lpfc_mqe_status, mb) == MBX_SUCCESS)
8008 bf_set(lpfc_mqe_status, mb,
8009 (LPFC_MBX_ERROR_RANGE | mcqe_status));
James Smartda0436e2009-05-22 14:51:39 -04008010 rc = MBXERR_ERROR;
James Smartd7c47992010-06-08 18:31:54 -04008011 } else
8012 lpfc_sli4_swap_str(phba, mboxq);
James Smartda0436e2009-05-22 14:51:39 -04008013
8014 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
James Smarta183a152011-10-10 21:32:43 -04008015 "(%d):0356 Mailbox cmd x%x (x%x/x%x) Status x%x "
James Smartda0436e2009-05-22 14:51:39 -04008016 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
8017 " x%x x%x CQ: x%x x%x x%x x%x\n",
James Smarta183a152011-10-10 21:32:43 -04008018 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
8019 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8020 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
James Smartda0436e2009-05-22 14:51:39 -04008021 bf_get(lpfc_mqe_status, mb),
8022 mb->un.mb_words[0], mb->un.mb_words[1],
8023 mb->un.mb_words[2], mb->un.mb_words[3],
8024 mb->un.mb_words[4], mb->un.mb_words[5],
8025 mb->un.mb_words[6], mb->un.mb_words[7],
8026 mb->un.mb_words[8], mb->un.mb_words[9],
8027 mb->un.mb_words[10], mb->un.mb_words[11],
8028 mb->un.mb_words[12], mboxq->mcqe.word0,
8029 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
8030 mboxq->mcqe.trailer);
8031exit:
8032 /* We are holding the token, no needed for lock when release */
8033 spin_lock_irqsave(&phba->hbalock, iflag);
8034 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8035 phba->sli.mbox_active = NULL;
8036 spin_unlock_irqrestore(&phba->hbalock, iflag);
8037 return rc;
8038}
8039
8040/**
8041 * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
8042 * @phba: Pointer to HBA context object.
8043 * @pmbox: Pointer to mailbox object.
8044 * @flag: Flag indicating how the mailbox need to be processed.
8045 *
8046 * This function is called by discovery code and HBA management code to submit
8047 * a mailbox command to firmware with SLI-4 interface spec.
8048 *
8049 * Return codes the caller owns the mailbox command after the return of the
8050 * function.
8051 **/
8052static int
8053lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
8054 uint32_t flag)
8055{
8056 struct lpfc_sli *psli = &phba->sli;
8057 unsigned long iflags;
8058 int rc;
8059
James Smartb76f2dc2011-07-22 18:37:42 -04008060 /* dump from issue mailbox command if setup */
8061 lpfc_idiag_mbxacc_dump_issue_mbox(phba, &mboxq->u.mb);
8062
James Smart8fa38512009-07-19 10:01:03 -04008063 rc = lpfc_mbox_dev_check(phba);
8064 if (unlikely(rc)) {
8065 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
James Smarta183a152011-10-10 21:32:43 -04008066 "(%d):2544 Mailbox command x%x (x%x/x%x) "
James Smart8fa38512009-07-19 10:01:03 -04008067 "cannot issue Data: x%x x%x\n",
8068 mboxq->vport ? mboxq->vport->vpi : 0,
8069 mboxq->u.mb.mbxCommand,
James Smarta183a152011-10-10 21:32:43 -04008070 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8071 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
James Smart8fa38512009-07-19 10:01:03 -04008072 psli->sli_flag, flag);
8073 goto out_not_finished;
8074 }
8075
James Smartda0436e2009-05-22 14:51:39 -04008076 /* Detect polling mode and jump to a handler */
8077 if (!phba->sli4_hba.intr_enable) {
8078 if (flag == MBX_POLL)
8079 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
8080 else
8081 rc = -EIO;
8082 if (rc != MBX_SUCCESS)
James Smart05580562011-05-24 11:40:48 -04008083 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
James Smartda0436e2009-05-22 14:51:39 -04008084 "(%d):2541 Mailbox command x%x "
James Smartcc459f12012-05-09 21:18:30 -04008085 "(x%x/x%x) failure: "
8086 "mqe_sta: x%x mcqe_sta: x%x/x%x "
8087 "Data: x%x x%x\n,",
James Smartda0436e2009-05-22 14:51:39 -04008088 mboxq->vport ? mboxq->vport->vpi : 0,
8089 mboxq->u.mb.mbxCommand,
James Smarta183a152011-10-10 21:32:43 -04008090 lpfc_sli_config_mbox_subsys_get(phba,
8091 mboxq),
8092 lpfc_sli_config_mbox_opcode_get(phba,
8093 mboxq),
James Smartcc459f12012-05-09 21:18:30 -04008094 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
8095 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
8096 bf_get(lpfc_mcqe_ext_status,
8097 &mboxq->mcqe),
James Smartda0436e2009-05-22 14:51:39 -04008098 psli->sli_flag, flag);
8099 return rc;
8100 } else if (flag == MBX_POLL) {
James Smartf1126682009-06-10 17:22:44 -04008101 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
8102 "(%d):2542 Try to issue mailbox command "
James Smarta183a152011-10-10 21:32:43 -04008103 "x%x (x%x/x%x) synchronously ahead of async"
James Smartf1126682009-06-10 17:22:44 -04008104 "mailbox command queue: x%x x%x\n",
James Smartda0436e2009-05-22 14:51:39 -04008105 mboxq->vport ? mboxq->vport->vpi : 0,
8106 mboxq->u.mb.mbxCommand,
James Smarta183a152011-10-10 21:32:43 -04008107 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8108 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
James Smartda0436e2009-05-22 14:51:39 -04008109 psli->sli_flag, flag);
James Smartf1126682009-06-10 17:22:44 -04008110 /* Try to block the asynchronous mailbox posting */
8111 rc = lpfc_sli4_async_mbox_block(phba);
8112 if (!rc) {
8113 /* Successfully blocked, now issue sync mbox cmd */
8114 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
8115 if (rc != MBX_SUCCESS)
James Smartcc459f12012-05-09 21:18:30 -04008116 lpfc_printf_log(phba, KERN_WARNING,
James Smarta183a152011-10-10 21:32:43 -04008117 LOG_MBOX | LOG_SLI,
James Smartcc459f12012-05-09 21:18:30 -04008118 "(%d):2597 Sync Mailbox command "
8119 "x%x (x%x/x%x) failure: "
8120 "mqe_sta: x%x mcqe_sta: x%x/x%x "
8121 "Data: x%x x%x\n,",
8122 mboxq->vport ? mboxq->vport->vpi : 0,
James Smarta183a152011-10-10 21:32:43 -04008123 mboxq->u.mb.mbxCommand,
8124 lpfc_sli_config_mbox_subsys_get(phba,
8125 mboxq),
8126 lpfc_sli_config_mbox_opcode_get(phba,
8127 mboxq),
James Smartcc459f12012-05-09 21:18:30 -04008128 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
8129 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
8130 bf_get(lpfc_mcqe_ext_status,
8131 &mboxq->mcqe),
James Smarta183a152011-10-10 21:32:43 -04008132 psli->sli_flag, flag);
James Smartf1126682009-06-10 17:22:44 -04008133 /* Unblock the async mailbox posting afterward */
8134 lpfc_sli4_async_mbox_unblock(phba);
8135 }
8136 return rc;
James Smartda0436e2009-05-22 14:51:39 -04008137 }
8138
8139 /* Now, interrupt mode asynchrous mailbox command */
8140 rc = lpfc_mbox_cmd_check(phba, mboxq);
8141 if (rc) {
8142 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
James Smarta183a152011-10-10 21:32:43 -04008143 "(%d):2543 Mailbox command x%x (x%x/x%x) "
James Smartda0436e2009-05-22 14:51:39 -04008144 "cannot issue Data: x%x x%x\n",
8145 mboxq->vport ? mboxq->vport->vpi : 0,
8146 mboxq->u.mb.mbxCommand,
James Smarta183a152011-10-10 21:32:43 -04008147 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8148 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
James Smartda0436e2009-05-22 14:51:39 -04008149 psli->sli_flag, flag);
8150 goto out_not_finished;
8151 }
James Smartda0436e2009-05-22 14:51:39 -04008152
8153 /* Put the mailbox command to the driver internal FIFO */
8154 psli->slistat.mbox_busy++;
8155 spin_lock_irqsave(&phba->hbalock, iflags);
8156 lpfc_mbox_put(phba, mboxq);
8157 spin_unlock_irqrestore(&phba->hbalock, iflags);
8158 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8159 "(%d):0354 Mbox cmd issue - Enqueue Data: "
James Smarta183a152011-10-10 21:32:43 -04008160 "x%x (x%x/x%x) x%x x%x x%x\n",
James Smartda0436e2009-05-22 14:51:39 -04008161 mboxq->vport ? mboxq->vport->vpi : 0xffffff,
8162 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
James Smarta183a152011-10-10 21:32:43 -04008163 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8164 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
James Smartda0436e2009-05-22 14:51:39 -04008165 phba->pport->port_state,
8166 psli->sli_flag, MBX_NOWAIT);
8167 /* Wake up worker thread to transport mailbox command from head */
8168 lpfc_worker_wake_up(phba);
8169
8170 return MBX_BUSY;
8171
8172out_not_finished:
8173 return MBX_NOT_FINISHED;
8174}
8175
8176/**
8177 * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
8178 * @phba: Pointer to HBA context object.
8179 *
8180 * This function is called by worker thread to send a mailbox command to
8181 * SLI4 HBA firmware.
8182 *
8183 **/
8184int
8185lpfc_sli4_post_async_mbox(struct lpfc_hba *phba)
8186{
8187 struct lpfc_sli *psli = &phba->sli;
8188 LPFC_MBOXQ_t *mboxq;
8189 int rc = MBX_SUCCESS;
8190 unsigned long iflags;
8191 struct lpfc_mqe *mqe;
8192 uint32_t mbx_cmnd;
8193
8194 /* Check interrupt mode before post async mailbox command */
8195 if (unlikely(!phba->sli4_hba.intr_enable))
8196 return MBX_NOT_FINISHED;
8197
8198 /* Check for mailbox command service token */
8199 spin_lock_irqsave(&phba->hbalock, iflags);
8200 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
8201 spin_unlock_irqrestore(&phba->hbalock, iflags);
8202 return MBX_NOT_FINISHED;
8203 }
8204 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8205 spin_unlock_irqrestore(&phba->hbalock, iflags);
8206 return MBX_NOT_FINISHED;
8207 }
8208 if (unlikely(phba->sli.mbox_active)) {
8209 spin_unlock_irqrestore(&phba->hbalock, iflags);
8210 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8211 "0384 There is pending active mailbox cmd\n");
8212 return MBX_NOT_FINISHED;
8213 }
8214 /* Take the mailbox command service token */
8215 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
8216
8217 /* Get the next mailbox command from head of queue */
8218 mboxq = lpfc_mbox_get(phba);
8219
8220 /* If no more mailbox command waiting for post, we're done */
8221 if (!mboxq) {
8222 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8223 spin_unlock_irqrestore(&phba->hbalock, iflags);
8224 return MBX_SUCCESS;
8225 }
8226 phba->sli.mbox_active = mboxq;
8227 spin_unlock_irqrestore(&phba->hbalock, iflags);
8228
8229 /* Check device readiness for posting mailbox command */
8230 rc = lpfc_mbox_dev_check(phba);
8231 if (unlikely(rc))
8232 /* Driver clean routine will clean up pending mailbox */
8233 goto out_not_finished;
8234
8235 /* Prepare the mbox command to be posted */
8236 mqe = &mboxq->u.mqe;
8237 mbx_cmnd = bf_get(lpfc_mqe_command, mqe);
8238
8239 /* Start timer for the mbox_tmo and log some mailbox post messages */
8240 mod_timer(&psli->mbox_tmo, (jiffies +
James Smart256ec0d2013-04-17 20:14:58 -04008241 msecs_to_jiffies(1000 * lpfc_mbox_tmo_val(phba, mboxq))));
James Smartda0436e2009-05-22 14:51:39 -04008242
8243 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
James Smarta183a152011-10-10 21:32:43 -04008244 "(%d):0355 Mailbox cmd x%x (x%x/x%x) issue Data: "
James Smartda0436e2009-05-22 14:51:39 -04008245 "x%x x%x\n",
8246 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
James Smarta183a152011-10-10 21:32:43 -04008247 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8248 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
James Smartda0436e2009-05-22 14:51:39 -04008249 phba->pport->port_state, psli->sli_flag);
8250
8251 if (mbx_cmnd != MBX_HEARTBEAT) {
8252 if (mboxq->vport) {
8253 lpfc_debugfs_disc_trc(mboxq->vport,
8254 LPFC_DISC_TRC_MBOX_VPORT,
8255 "MBOX Send vport: cmd:x%x mb:x%x x%x",
8256 mbx_cmnd, mqe->un.mb_words[0],
8257 mqe->un.mb_words[1]);
8258 } else {
8259 lpfc_debugfs_disc_trc(phba->pport,
8260 LPFC_DISC_TRC_MBOX,
8261 "MBOX Send: cmd:x%x mb:x%x x%x",
8262 mbx_cmnd, mqe->un.mb_words[0],
8263 mqe->un.mb_words[1]);
8264 }
8265 }
8266 psli->slistat.mbox_cmd++;
8267
8268 /* Post the mailbox command to the port */
8269 rc = lpfc_sli4_mq_put(phba->sli4_hba.mbx_wq, mqe);
8270 if (rc != MBX_SUCCESS) {
8271 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
James Smarta183a152011-10-10 21:32:43 -04008272 "(%d):2533 Mailbox command x%x (x%x/x%x) "
James Smartda0436e2009-05-22 14:51:39 -04008273 "cannot issue Data: x%x x%x\n",
8274 mboxq->vport ? mboxq->vport->vpi : 0,
8275 mboxq->u.mb.mbxCommand,
James Smarta183a152011-10-10 21:32:43 -04008276 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8277 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
James Smartda0436e2009-05-22 14:51:39 -04008278 psli->sli_flag, MBX_NOWAIT);
8279 goto out_not_finished;
8280 }
8281
8282 return rc;
8283
8284out_not_finished:
8285 spin_lock_irqsave(&phba->hbalock, iflags);
James Smartd7069f02012-03-01 22:36:29 -05008286 if (phba->sli.mbox_active) {
8287 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
8288 __lpfc_mbox_cmpl_put(phba, mboxq);
8289 /* Release the token */
8290 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8291 phba->sli.mbox_active = NULL;
8292 }
James Smartda0436e2009-05-22 14:51:39 -04008293 spin_unlock_irqrestore(&phba->hbalock, iflags);
8294
8295 return MBX_NOT_FINISHED;
8296}
8297
8298/**
8299 * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
8300 * @phba: Pointer to HBA context object.
8301 * @pmbox: Pointer to mailbox object.
8302 * @flag: Flag indicating how the mailbox need to be processed.
8303 *
8304 * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
8305 * the API jump table function pointer from the lpfc_hba struct.
8306 *
8307 * Return codes the caller owns the mailbox command after the return of the
8308 * function.
8309 **/
8310int
8311lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
8312{
8313 return phba->lpfc_sli_issue_mbox(phba, pmbox, flag);
8314}
8315
8316/**
Lucas De Marchi25985ed2011-03-30 22:57:33 -03008317 * lpfc_mbox_api_table_setup - Set up mbox api function jump table
James Smartda0436e2009-05-22 14:51:39 -04008318 * @phba: The hba struct for which this call is being executed.
8319 * @dev_grp: The HBA PCI-Device group number.
8320 *
8321 * This routine sets up the mbox interface API function jump table in @phba
8322 * struct.
8323 * Returns: 0 - success, -ENODEV - failure.
8324 **/
8325int
8326lpfc_mbox_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
8327{
8328
8329 switch (dev_grp) {
8330 case LPFC_PCI_DEV_LP:
8331 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s3;
8332 phba->lpfc_sli_handle_slow_ring_event =
8333 lpfc_sli_handle_slow_ring_event_s3;
8334 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s3;
8335 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s3;
8336 phba->lpfc_sli_brdready = lpfc_sli_brdready_s3;
8337 break;
8338 case LPFC_PCI_DEV_OC:
8339 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s4;
8340 phba->lpfc_sli_handle_slow_ring_event =
8341 lpfc_sli_handle_slow_ring_event_s4;
8342 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s4;
8343 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s4;
8344 phba->lpfc_sli_brdready = lpfc_sli_brdready_s4;
8345 break;
8346 default:
8347 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8348 "1420 Invalid HBA PCI-device group: 0x%x\n",
8349 dev_grp);
8350 return -ENODEV;
8351 break;
8352 }
8353 return 0;
8354}
8355
8356/**
James Smart3621a712009-04-06 18:47:14 -04008357 * __lpfc_sli_ringtx_put - Add an iocb to the txq
James Smarte59058c2008-08-24 21:49:00 -04008358 * @phba: Pointer to HBA context object.
8359 * @pring: Pointer to driver SLI ring object.
8360 * @piocb: Pointer to address of newly added command iocb.
8361 *
8362 * This function is called with hbalock held to add a command
8363 * iocb to the txq when SLI layer cannot submit the command iocb
8364 * to the ring.
8365 **/
James Smart2a9bf3d2010-06-07 15:24:45 -04008366void
James Smart92d7f7b2007-06-17 19:56:38 -05008367__lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
James Smart2e0fef82007-06-17 19:56:36 -05008368 struct lpfc_iocbq *piocb)
dea31012005-04-17 16:05:31 -05008369{
Johannes Thumshirn1c2ba472016-01-20 16:22:22 +01008370 lockdep_assert_held(&phba->hbalock);
dea31012005-04-17 16:05:31 -05008371 /* Insert the caller's iocb in the txq tail for later processing. */
8372 list_add_tail(&piocb->list, &pring->txq);
dea31012005-04-17 16:05:31 -05008373}
8374
James Smarte59058c2008-08-24 21:49:00 -04008375/**
James Smart3621a712009-04-06 18:47:14 -04008376 * lpfc_sli_next_iocb - Get the next iocb in the txq
James Smarte59058c2008-08-24 21:49:00 -04008377 * @phba: Pointer to HBA context object.
8378 * @pring: Pointer to driver SLI ring object.
8379 * @piocb: Pointer to address of newly added command iocb.
8380 *
8381 * This function is called with hbalock held before a new
8382 * iocb is submitted to the firmware. This function checks
8383 * txq to flush the iocbs in txq to Firmware before
8384 * submitting new iocbs to the Firmware.
8385 * If there are iocbs in the txq which need to be submitted
8386 * to firmware, lpfc_sli_next_iocb returns the first element
8387 * of the txq after dequeuing it from txq.
8388 * If there is no iocb in the txq then the function will return
8389 * *piocb and *piocb is set to NULL. Caller needs to check
8390 * *piocb to find if there are more commands in the txq.
8391 **/
dea31012005-04-17 16:05:31 -05008392static struct lpfc_iocbq *
8393lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
James Smart2e0fef82007-06-17 19:56:36 -05008394 struct lpfc_iocbq **piocb)
dea31012005-04-17 16:05:31 -05008395{
8396 struct lpfc_iocbq * nextiocb;
8397
Johannes Thumshirn1c2ba472016-01-20 16:22:22 +01008398 lockdep_assert_held(&phba->hbalock);
8399
dea31012005-04-17 16:05:31 -05008400 nextiocb = lpfc_sli_ringtx_get(phba, pring);
8401 if (!nextiocb) {
8402 nextiocb = *piocb;
8403 *piocb = NULL;
8404 }
8405
8406 return nextiocb;
8407}
8408
James Smarte59058c2008-08-24 21:49:00 -04008409/**
James Smart3772a992009-05-22 14:50:54 -04008410 * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
James Smarte59058c2008-08-24 21:49:00 -04008411 * @phba: Pointer to HBA context object.
James Smart3772a992009-05-22 14:50:54 -04008412 * @ring_number: SLI ring number to issue iocb on.
James Smarte59058c2008-08-24 21:49:00 -04008413 * @piocb: Pointer to command iocb.
8414 * @flag: Flag indicating if this command can be put into txq.
8415 *
James Smart3772a992009-05-22 14:50:54 -04008416 * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
8417 * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
8418 * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
8419 * flag is turned on, the function returns IOCB_ERROR. When the link is down,
8420 * this function allows only iocbs for posting buffers. This function finds
8421 * next available slot in the command ring and posts the command to the
8422 * available slot and writes the port attention register to request HBA start
8423 * processing new iocb. If there is no slot available in the ring and
8424 * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
8425 * the function returns IOCB_BUSY.
James Smarte59058c2008-08-24 21:49:00 -04008426 *
James Smart3772a992009-05-22 14:50:54 -04008427 * This function is called with hbalock held. The function will return success
8428 * after it successfully submit the iocb to firmware or after adding to the
8429 * txq.
James Smarte59058c2008-08-24 21:49:00 -04008430 **/
James Smart98c9ea52007-10-27 13:37:33 -04008431static int
James Smart3772a992009-05-22 14:50:54 -04008432__lpfc_sli_issue_iocb_s3(struct lpfc_hba *phba, uint32_t ring_number,
dea31012005-04-17 16:05:31 -05008433 struct lpfc_iocbq *piocb, uint32_t flag)
8434{
8435 struct lpfc_iocbq *nextiocb;
8436 IOCB_t *iocb;
James Smart895427b2017-02-12 13:52:30 -08008437 struct lpfc_sli_ring *pring = &phba->sli.sli3_ring[ring_number];
dea31012005-04-17 16:05:31 -05008438
Johannes Thumshirn1c2ba472016-01-20 16:22:22 +01008439 lockdep_assert_held(&phba->hbalock);
8440
James Smart92d7f7b2007-06-17 19:56:38 -05008441 if (piocb->iocb_cmpl && (!piocb->vport) &&
8442 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
8443 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
8444 lpfc_printf_log(phba, KERN_ERR,
8445 LOG_SLI | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04008446 "1807 IOCB x%x failed. No vport\n",
James Smart92d7f7b2007-06-17 19:56:38 -05008447 piocb->iocb.ulpCommand);
8448 dump_stack();
8449 return IOCB_ERROR;
8450 }
8451
8452
Linas Vepstas8d63f372007-02-14 14:28:36 -06008453 /* If the PCI channel is in offline state, do not post iocbs. */
8454 if (unlikely(pci_channel_offline(phba->pcidev)))
8455 return IOCB_ERROR;
8456
James Smarta257bf92009-04-06 18:48:10 -04008457 /* If HBA has a deferred error attention, fail the iocb. */
8458 if (unlikely(phba->hba_flag & DEFER_ERATT))
8459 return IOCB_ERROR;
8460
dea31012005-04-17 16:05:31 -05008461 /*
8462 * We should never get an IOCB if we are in a < LINK_DOWN state
8463 */
James Smart2e0fef82007-06-17 19:56:36 -05008464 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
dea31012005-04-17 16:05:31 -05008465 return IOCB_ERROR;
8466
8467 /*
8468 * Check to see if we are blocking IOCB processing because of a
James Smart0b727fe2007-10-27 13:37:25 -04008469 * outstanding event.
dea31012005-04-17 16:05:31 -05008470 */
James Smart0b727fe2007-10-27 13:37:25 -04008471 if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT))
dea31012005-04-17 16:05:31 -05008472 goto iocb_busy;
8473
James Smart2e0fef82007-06-17 19:56:36 -05008474 if (unlikely(phba->link_state == LPFC_LINK_DOWN)) {
dea31012005-04-17 16:05:31 -05008475 /*
James Smart2680eea2007-04-25 09:52:55 -04008476 * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
dea31012005-04-17 16:05:31 -05008477 * can be issued if the link is not up.
8478 */
8479 switch (piocb->iocb.ulpCommand) {
James Smart84774a42008-08-24 21:50:06 -04008480 case CMD_GEN_REQUEST64_CR:
8481 case CMD_GEN_REQUEST64_CX:
8482 if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) ||
8483 (piocb->iocb.un.genreq64.w5.hcsw.Rctl !=
James Smart6a9c52c2009-10-02 15:16:51 -04008484 FC_RCTL_DD_UNSOL_CMD) ||
James Smart84774a42008-08-24 21:50:06 -04008485 (piocb->iocb.un.genreq64.w5.hcsw.Type !=
8486 MENLO_TRANSPORT_TYPE))
8487
8488 goto iocb_busy;
8489 break;
dea31012005-04-17 16:05:31 -05008490 case CMD_QUE_RING_BUF_CN:
8491 case CMD_QUE_RING_BUF64_CN:
dea31012005-04-17 16:05:31 -05008492 /*
8493 * For IOCBs, like QUE_RING_BUF, that have no rsp ring
8494 * completion, iocb_cmpl MUST be 0.
8495 */
8496 if (piocb->iocb_cmpl)
8497 piocb->iocb_cmpl = NULL;
8498 /*FALLTHROUGH*/
8499 case CMD_CREATE_XRI_CR:
James Smart2680eea2007-04-25 09:52:55 -04008500 case CMD_CLOSE_XRI_CN:
8501 case CMD_CLOSE_XRI_CX:
dea31012005-04-17 16:05:31 -05008502 break;
8503 default:
8504 goto iocb_busy;
8505 }
8506
8507 /*
8508 * For FCP commands, we must be in a state where we can process link
8509 * attention events.
8510 */
James Smart895427b2017-02-12 13:52:30 -08008511 } else if (unlikely(pring->ringno == LPFC_FCP_RING &&
James Smart92d7f7b2007-06-17 19:56:38 -05008512 !(phba->sli.sli_flag & LPFC_PROCESS_LA))) {
dea31012005-04-17 16:05:31 -05008513 goto iocb_busy;
James Smart92d7f7b2007-06-17 19:56:38 -05008514 }
dea31012005-04-17 16:05:31 -05008515
dea31012005-04-17 16:05:31 -05008516 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
8517 (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb)))
8518 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
8519
8520 if (iocb)
8521 lpfc_sli_update_ring(phba, pring);
8522 else
8523 lpfc_sli_update_full_ring(phba, pring);
8524
8525 if (!piocb)
8526 return IOCB_SUCCESS;
8527
8528 goto out_busy;
8529
8530 iocb_busy:
8531 pring->stats.iocb_cmd_delay++;
8532
8533 out_busy:
8534
8535 if (!(flag & SLI_IOCB_RET_IOCB)) {
James Smart92d7f7b2007-06-17 19:56:38 -05008536 __lpfc_sli_ringtx_put(phba, pring, piocb);
dea31012005-04-17 16:05:31 -05008537 return IOCB_SUCCESS;
8538 }
8539
8540 return IOCB_BUSY;
8541}
8542
James Smart3772a992009-05-22 14:50:54 -04008543/**
James Smart4f774512009-05-22 14:52:35 -04008544 * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl.
8545 * @phba: Pointer to HBA context object.
8546 * @piocb: Pointer to command iocb.
8547 * @sglq: Pointer to the scatter gather queue object.
8548 *
8549 * This routine converts the bpl or bde that is in the IOCB
8550 * to a sgl list for the sli4 hardware. The physical address
8551 * of the bpl/bde is converted back to a virtual address.
8552 * If the IOCB contains a BPL then the list of BDE's is
8553 * converted to sli4_sge's. If the IOCB contains a single
8554 * BDE then it is converted to a single sli_sge.
8555 * The IOCB is still in cpu endianess so the contents of
8556 * the bpl can be used without byte swapping.
8557 *
8558 * Returns valid XRI = Success, NO_XRI = Failure.
8559**/
8560static uint16_t
8561lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
8562 struct lpfc_sglq *sglq)
8563{
8564 uint16_t xritag = NO_XRI;
8565 struct ulp_bde64 *bpl = NULL;
8566 struct ulp_bde64 bde;
8567 struct sli4_sge *sgl = NULL;
James Smart1b511972011-12-13 13:23:09 -05008568 struct lpfc_dmabuf *dmabuf;
James Smart4f774512009-05-22 14:52:35 -04008569 IOCB_t *icmd;
8570 int numBdes = 0;
8571 int i = 0;
James Smart63e801c2010-11-20 23:14:19 -05008572 uint32_t offset = 0; /* accumulated offset in the sg request list */
8573 int inbound = 0; /* number of sg reply entries inbound from firmware */
James Smart4f774512009-05-22 14:52:35 -04008574
8575 if (!piocbq || !sglq)
8576 return xritag;
8577
8578 sgl = (struct sli4_sge *)sglq->sgl;
8579 icmd = &piocbq->iocb;
James Smart6b5151f2012-01-18 16:24:06 -05008580 if (icmd->ulpCommand == CMD_XMIT_BLS_RSP64_CX)
8581 return sglq->sli4_xritag;
James Smart4f774512009-05-22 14:52:35 -04008582 if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
8583 numBdes = icmd->un.genreq64.bdl.bdeSize /
8584 sizeof(struct ulp_bde64);
8585 /* The addrHigh and addrLow fields within the IOCB
8586 * have not been byteswapped yet so there is no
8587 * need to swap them back.
8588 */
James Smart1b511972011-12-13 13:23:09 -05008589 if (piocbq->context3)
8590 dmabuf = (struct lpfc_dmabuf *)piocbq->context3;
8591 else
8592 return xritag;
James Smart4f774512009-05-22 14:52:35 -04008593
James Smart1b511972011-12-13 13:23:09 -05008594 bpl = (struct ulp_bde64 *)dmabuf->virt;
James Smart4f774512009-05-22 14:52:35 -04008595 if (!bpl)
8596 return xritag;
8597
8598 for (i = 0; i < numBdes; i++) {
8599 /* Should already be byte swapped. */
James Smart28baac72010-02-12 14:42:03 -05008600 sgl->addr_hi = bpl->addrHigh;
8601 sgl->addr_lo = bpl->addrLow;
8602
James Smart05580562011-05-24 11:40:48 -04008603 sgl->word2 = le32_to_cpu(sgl->word2);
James Smart4f774512009-05-22 14:52:35 -04008604 if ((i+1) == numBdes)
8605 bf_set(lpfc_sli4_sge_last, sgl, 1);
8606 else
8607 bf_set(lpfc_sli4_sge_last, sgl, 0);
James Smart28baac72010-02-12 14:42:03 -05008608 /* swap the size field back to the cpu so we
8609 * can assign it to the sgl.
8610 */
8611 bde.tus.w = le32_to_cpu(bpl->tus.w);
8612 sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
James Smart63e801c2010-11-20 23:14:19 -05008613 /* The offsets in the sgl need to be accumulated
8614 * separately for the request and reply lists.
8615 * The request is always first, the reply follows.
8616 */
8617 if (piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) {
8618 /* add up the reply sg entries */
8619 if (bpl->tus.f.bdeFlags == BUFF_TYPE_BDE_64I)
8620 inbound++;
8621 /* first inbound? reset the offset */
8622 if (inbound == 1)
8623 offset = 0;
8624 bf_set(lpfc_sli4_sge_offset, sgl, offset);
James Smartf9bb2da2011-10-10 21:34:11 -04008625 bf_set(lpfc_sli4_sge_type, sgl,
8626 LPFC_SGE_TYPE_DATA);
James Smart63e801c2010-11-20 23:14:19 -05008627 offset += bde.tus.f.bdeSize;
8628 }
James Smart546fc852011-03-11 16:06:29 -05008629 sgl->word2 = cpu_to_le32(sgl->word2);
James Smart4f774512009-05-22 14:52:35 -04008630 bpl++;
8631 sgl++;
8632 }
8633 } else if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BDE_64) {
8634 /* The addrHigh and addrLow fields of the BDE have not
8635 * been byteswapped yet so they need to be swapped
8636 * before putting them in the sgl.
8637 */
8638 sgl->addr_hi =
8639 cpu_to_le32(icmd->un.genreq64.bdl.addrHigh);
8640 sgl->addr_lo =
8641 cpu_to_le32(icmd->un.genreq64.bdl.addrLow);
James Smart05580562011-05-24 11:40:48 -04008642 sgl->word2 = le32_to_cpu(sgl->word2);
James Smart4f774512009-05-22 14:52:35 -04008643 bf_set(lpfc_sli4_sge_last, sgl, 1);
8644 sgl->word2 = cpu_to_le32(sgl->word2);
James Smart28baac72010-02-12 14:42:03 -05008645 sgl->sge_len =
8646 cpu_to_le32(icmd->un.genreq64.bdl.bdeSize);
James Smart4f774512009-05-22 14:52:35 -04008647 }
8648 return sglq->sli4_xritag;
8649}
8650
8651/**
James Smart4f774512009-05-22 14:52:35 -04008652 * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry.
8653 * @phba: Pointer to HBA context object.
8654 * @piocb: Pointer to command iocb.
8655 * @wqe: Pointer to the work queue entry.
8656 *
8657 * This routine converts the iocb command to its Work Queue Entry
8658 * equivalent. The wqe pointer should not have any fields set when
8659 * this routine is called because it will memcpy over them.
8660 * This routine does not set the CQ_ID or the WQEC bits in the
8661 * wqe.
8662 *
8663 * Returns: 0 = Success, IOCB_ERROR = Failure.
8664 **/
8665static int
8666lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
8667 union lpfc_wqe *wqe)
8668{
James Smart5ffc2662009-11-18 15:39:44 -05008669 uint32_t xmit_len = 0, total_len = 0;
James Smart4f774512009-05-22 14:52:35 -04008670 uint8_t ct = 0;
8671 uint32_t fip;
8672 uint32_t abort_tag;
8673 uint8_t command_type = ELS_COMMAND_NON_FIP;
8674 uint8_t cmnd;
8675 uint16_t xritag;
James Smartdcf2a4e2010-09-29 11:18:53 -04008676 uint16_t abrt_iotag;
8677 struct lpfc_iocbq *abrtiocbq;
James Smart4f774512009-05-22 14:52:35 -04008678 struct ulp_bde64 *bpl = NULL;
James Smartf0d9bcc2010-10-22 11:07:09 -04008679 uint32_t els_id = LPFC_ELS_ID_DEFAULT;
James Smart5ffc2662009-11-18 15:39:44 -05008680 int numBdes, i;
8681 struct ulp_bde64 bde;
James Smartc31098c2011-04-16 11:03:33 -04008682 struct lpfc_nodelist *ndlp;
James Smartff78d8f2011-12-13 13:21:35 -05008683 uint32_t *pcmd;
James Smart1b511972011-12-13 13:23:09 -05008684 uint32_t if_type;
James Smart4f774512009-05-22 14:52:35 -04008685
James Smart45ed1192009-10-02 15:17:02 -04008686 fip = phba->hba_flag & HBA_FIP_SUPPORT;
James Smart4f774512009-05-22 14:52:35 -04008687 /* The fcp commands will set command type */
James Smart0c287582009-06-10 17:22:56 -04008688 if (iocbq->iocb_flag & LPFC_IO_FCP)
James Smart4f774512009-05-22 14:52:35 -04008689 command_type = FCP_COMMAND;
James Smartc8685952009-11-18 15:39:16 -05008690 else if (fip && (iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK))
James Smart0c287582009-06-10 17:22:56 -04008691 command_type = ELS_COMMAND_FIP;
8692 else
8693 command_type = ELS_COMMAND_NON_FIP;
8694
James Smartb5c53952016-03-31 14:12:30 -07008695 if (phba->fcp_embed_io)
8696 memset(wqe, 0, sizeof(union lpfc_wqe128));
James Smart4f774512009-05-22 14:52:35 -04008697 /* Some of the fields are in the right position already */
8698 memcpy(wqe, &iocbq->iocb, sizeof(union lpfc_wqe));
James Smartae9e28f2017-05-15 15:20:51 -07008699 if (iocbq->iocb.ulpCommand != CMD_SEND_FRAME) {
8700 /* The ct field has moved so reset */
8701 wqe->generic.wqe_com.word7 = 0;
8702 wqe->generic.wqe_com.word10 = 0;
8703 }
James Smartb5c53952016-03-31 14:12:30 -07008704
8705 abort_tag = (uint32_t) iocbq->iotag;
8706 xritag = iocbq->sli4_xritag;
James Smart4f774512009-05-22 14:52:35 -04008707 /* words0-2 bpl convert bde */
8708 if (iocbq->iocb.un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
James Smart5ffc2662009-11-18 15:39:44 -05008709 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
8710 sizeof(struct ulp_bde64);
James Smart4f774512009-05-22 14:52:35 -04008711 bpl = (struct ulp_bde64 *)
8712 ((struct lpfc_dmabuf *)iocbq->context3)->virt;
8713 if (!bpl)
8714 return IOCB_ERROR;
8715
8716 /* Should already be byte swapped. */
8717 wqe->generic.bde.addrHigh = le32_to_cpu(bpl->addrHigh);
8718 wqe->generic.bde.addrLow = le32_to_cpu(bpl->addrLow);
8719 /* swap the size field back to the cpu so we
8720 * can assign it to the sgl.
8721 */
8722 wqe->generic.bde.tus.w = le32_to_cpu(bpl->tus.w);
James Smart5ffc2662009-11-18 15:39:44 -05008723 xmit_len = wqe->generic.bde.tus.f.bdeSize;
8724 total_len = 0;
8725 for (i = 0; i < numBdes; i++) {
8726 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
8727 total_len += bde.tus.f.bdeSize;
8728 }
James Smart4f774512009-05-22 14:52:35 -04008729 } else
James Smart5ffc2662009-11-18 15:39:44 -05008730 xmit_len = iocbq->iocb.un.fcpi64.bdl.bdeSize;
James Smart4f774512009-05-22 14:52:35 -04008731
8732 iocbq->iocb.ulpIoTag = iocbq->iotag;
8733 cmnd = iocbq->iocb.ulpCommand;
8734
8735 switch (iocbq->iocb.ulpCommand) {
8736 case CMD_ELS_REQUEST64_CR:
James Smart93d1379e2012-05-09 21:19:34 -04008737 if (iocbq->iocb_flag & LPFC_IO_LIBDFC)
8738 ndlp = iocbq->context_un.ndlp;
8739 else
8740 ndlp = (struct lpfc_nodelist *)iocbq->context1;
James Smart4f774512009-05-22 14:52:35 -04008741 if (!iocbq->iocb.ulpLe) {
8742 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8743 "2007 Only Limited Edition cmd Format"
8744 " supported 0x%x\n",
8745 iocbq->iocb.ulpCommand);
8746 return IOCB_ERROR;
8747 }
James Smartff78d8f2011-12-13 13:21:35 -05008748
James Smart5ffc2662009-11-18 15:39:44 -05008749 wqe->els_req.payload_len = xmit_len;
James Smart4f774512009-05-22 14:52:35 -04008750 /* Els_reguest64 has a TMO */
8751 bf_set(wqe_tmo, &wqe->els_req.wqe_com,
8752 iocbq->iocb.ulpTimeout);
8753 /* Need a VF for word 4 set the vf bit*/
8754 bf_set(els_req64_vf, &wqe->els_req, 0);
8755 /* And a VFID for word 12 */
8756 bf_set(els_req64_vfid, &wqe->els_req, 0);
James Smart4f774512009-05-22 14:52:35 -04008757 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
James Smartf0d9bcc2010-10-22 11:07:09 -04008758 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
8759 iocbq->iocb.ulpContext);
8760 bf_set(wqe_ct, &wqe->els_req.wqe_com, ct);
8761 bf_set(wqe_pu, &wqe->els_req.wqe_com, 0);
James Smart4f774512009-05-22 14:52:35 -04008762 /* CCP CCPE PV PRI in word10 were set in the memcpy */
James Smartff78d8f2011-12-13 13:21:35 -05008763 if (command_type == ELS_COMMAND_FIP)
James Smartc8685952009-11-18 15:39:16 -05008764 els_id = ((iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK)
8765 >> LPFC_FIP_ELS_ID_SHIFT);
James Smartff78d8f2011-12-13 13:21:35 -05008766 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
8767 iocbq->context2)->virt);
James Smart1b511972011-12-13 13:23:09 -05008768 if_type = bf_get(lpfc_sli_intf_if_type,
8769 &phba->sli4_hba.sli_intf);
8770 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
James Smartff78d8f2011-12-13 13:21:35 -05008771 if (pcmd && (*pcmd == ELS_CMD_FLOGI ||
James Smartcb69f7d2011-12-13 13:21:57 -05008772 *pcmd == ELS_CMD_SCR ||
James Smart6b5151f2012-01-18 16:24:06 -05008773 *pcmd == ELS_CMD_FDISC ||
James Smartbdcd2b92012-03-01 22:33:52 -05008774 *pcmd == ELS_CMD_LOGO ||
James Smartff78d8f2011-12-13 13:21:35 -05008775 *pcmd == ELS_CMD_PLOGI)) {
8776 bf_set(els_req64_sp, &wqe->els_req, 1);
8777 bf_set(els_req64_sid, &wqe->els_req,
8778 iocbq->vport->fc_myDID);
James Smart939723a2012-05-09 21:19:03 -04008779 if ((*pcmd == ELS_CMD_FLOGI) &&
8780 !(phba->fc_topology ==
8781 LPFC_TOPOLOGY_LOOP))
8782 bf_set(els_req64_sid, &wqe->els_req, 0);
James Smartff78d8f2011-12-13 13:21:35 -05008783 bf_set(wqe_ct, &wqe->els_req.wqe_com, 1);
8784 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
James Smarta7dd9c02012-05-09 21:16:50 -04008785 phba->vpi_ids[iocbq->vport->vpi]);
James Smart3ef6d242012-01-18 16:23:48 -05008786 } else if (pcmd && iocbq->context1) {
James Smartff78d8f2011-12-13 13:21:35 -05008787 bf_set(wqe_ct, &wqe->els_req.wqe_com, 0);
8788 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
8789 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
8790 }
James Smartc8685952009-11-18 15:39:16 -05008791 }
James Smart6d368e52011-05-24 11:44:12 -04008792 bf_set(wqe_temp_rpi, &wqe->els_req.wqe_com,
8793 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
James Smartf0d9bcc2010-10-22 11:07:09 -04008794 bf_set(wqe_els_id, &wqe->els_req.wqe_com, els_id);
8795 bf_set(wqe_dbde, &wqe->els_req.wqe_com, 1);
8796 bf_set(wqe_iod, &wqe->els_req.wqe_com, LPFC_WQE_IOD_READ);
8797 bf_set(wqe_qosd, &wqe->els_req.wqe_com, 1);
8798 bf_set(wqe_lenloc, &wqe->els_req.wqe_com, LPFC_WQE_LENLOC_NONE);
8799 bf_set(wqe_ebde_cnt, &wqe->els_req.wqe_com, 0);
James Smartaf227412013-10-10 12:23:10 -04008800 wqe->els_req.max_response_payload_len = total_len - xmit_len;
James Smart7851fe22011-07-22 18:36:52 -04008801 break;
James Smart5ffc2662009-11-18 15:39:44 -05008802 case CMD_XMIT_SEQUENCE64_CX:
James Smartf0d9bcc2010-10-22 11:07:09 -04008803 bf_set(wqe_ctxt_tag, &wqe->xmit_sequence.wqe_com,
8804 iocbq->iocb.un.ulpWord[3]);
8805 bf_set(wqe_rcvoxid, &wqe->xmit_sequence.wqe_com,
James Smart7851fe22011-07-22 18:36:52 -04008806 iocbq->iocb.unsli3.rcvsli3.ox_id);
James Smart5ffc2662009-11-18 15:39:44 -05008807 /* The entire sequence is transmitted for this IOCB */
8808 xmit_len = total_len;
8809 cmnd = CMD_XMIT_SEQUENCE64_CR;
James Smart1b511972011-12-13 13:23:09 -05008810 if (phba->link_flag & LS_LOOPBACK_MODE)
8811 bf_set(wqe_xo, &wqe->xmit_sequence.wge_ctl, 1);
James Smart4f774512009-05-22 14:52:35 -04008812 case CMD_XMIT_SEQUENCE64_CR:
James Smartf0d9bcc2010-10-22 11:07:09 -04008813 /* word3 iocb=io_tag32 wqe=reserved */
8814 wqe->xmit_sequence.rsvd3 = 0;
James Smart4f774512009-05-22 14:52:35 -04008815 /* word4 relative_offset memcpy */
8816 /* word5 r_ctl/df_ctl memcpy */
James Smartf0d9bcc2010-10-22 11:07:09 -04008817 bf_set(wqe_pu, &wqe->xmit_sequence.wqe_com, 0);
8818 bf_set(wqe_dbde, &wqe->xmit_sequence.wqe_com, 1);
8819 bf_set(wqe_iod, &wqe->xmit_sequence.wqe_com,
8820 LPFC_WQE_IOD_WRITE);
8821 bf_set(wqe_lenloc, &wqe->xmit_sequence.wqe_com,
8822 LPFC_WQE_LENLOC_WORD12);
8823 bf_set(wqe_ebde_cnt, &wqe->xmit_sequence.wqe_com, 0);
James Smart5ffc2662009-11-18 15:39:44 -05008824 wqe->xmit_sequence.xmit_len = xmit_len;
8825 command_type = OTHER_COMMAND;
James Smart7851fe22011-07-22 18:36:52 -04008826 break;
James Smart4f774512009-05-22 14:52:35 -04008827 case CMD_XMIT_BCAST64_CN:
James Smartf0d9bcc2010-10-22 11:07:09 -04008828 /* word3 iocb=iotag32 wqe=seq_payload_len */
8829 wqe->xmit_bcast64.seq_payload_len = xmit_len;
James Smart4f774512009-05-22 14:52:35 -04008830 /* word4 iocb=rsvd wqe=rsvd */
8831 /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */
8832 /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */
James Smartf0d9bcc2010-10-22 11:07:09 -04008833 bf_set(wqe_ct, &wqe->xmit_bcast64.wqe_com,
James Smart4f774512009-05-22 14:52:35 -04008834 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
James Smartf0d9bcc2010-10-22 11:07:09 -04008835 bf_set(wqe_dbde, &wqe->xmit_bcast64.wqe_com, 1);
8836 bf_set(wqe_iod, &wqe->xmit_bcast64.wqe_com, LPFC_WQE_IOD_WRITE);
8837 bf_set(wqe_lenloc, &wqe->xmit_bcast64.wqe_com,
8838 LPFC_WQE_LENLOC_WORD3);
8839 bf_set(wqe_ebde_cnt, &wqe->xmit_bcast64.wqe_com, 0);
James Smart7851fe22011-07-22 18:36:52 -04008840 break;
James Smart4f774512009-05-22 14:52:35 -04008841 case CMD_FCP_IWRITE64_CR:
8842 command_type = FCP_COMMAND_DATA_OUT;
James Smartf0d9bcc2010-10-22 11:07:09 -04008843 /* word3 iocb=iotag wqe=payload_offset_len */
8844 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
James Smart0ba4b212013-10-10 12:22:38 -04008845 bf_set(payload_offset_len, &wqe->fcp_iwrite,
8846 xmit_len + sizeof(struct fcp_rsp));
8847 bf_set(cmd_buff_len, &wqe->fcp_iwrite,
8848 0);
James Smartf0d9bcc2010-10-22 11:07:09 -04008849 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
8850 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
8851 bf_set(wqe_erp, &wqe->fcp_iwrite.wqe_com,
8852 iocbq->iocb.ulpFCP2Rcvy);
8853 bf_set(wqe_lnk, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpXS);
8854 /* Always open the exchange */
James Smartf0d9bcc2010-10-22 11:07:09 -04008855 bf_set(wqe_iod, &wqe->fcp_iwrite.wqe_com, LPFC_WQE_IOD_WRITE);
8856 bf_set(wqe_lenloc, &wqe->fcp_iwrite.wqe_com,
8857 LPFC_WQE_LENLOC_WORD4);
James Smartf0d9bcc2010-10-22 11:07:09 -04008858 bf_set(wqe_pu, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpPU);
James Smartacd68592012-01-18 16:25:09 -05008859 bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 1);
James Smart1ba981f2014-02-20 09:56:45 -05008860 if (iocbq->iocb_flag & LPFC_IO_OAS) {
8861 bf_set(wqe_oas, &wqe->fcp_iwrite.wqe_com, 1);
James Smartc92c8412016-07-06 12:36:05 -07008862 bf_set(wqe_ccpe, &wqe->fcp_iwrite.wqe_com, 1);
8863 if (iocbq->priority) {
8864 bf_set(wqe_ccp, &wqe->fcp_iwrite.wqe_com,
8865 (iocbq->priority << 1));
8866 } else {
James Smart1ba981f2014-02-20 09:56:45 -05008867 bf_set(wqe_ccp, &wqe->fcp_iwrite.wqe_com,
8868 (phba->cfg_XLanePriority << 1));
8869 }
8870 }
James Smartb5c53952016-03-31 14:12:30 -07008871 /* Note, word 10 is already initialized to 0 */
8872
8873 if (phba->fcp_embed_io) {
8874 struct lpfc_scsi_buf *lpfc_cmd;
8875 struct sli4_sge *sgl;
8876 union lpfc_wqe128 *wqe128;
8877 struct fcp_cmnd *fcp_cmnd;
8878 uint32_t *ptr;
8879
8880 /* 128 byte wqe support here */
8881 wqe128 = (union lpfc_wqe128 *)wqe;
8882
8883 lpfc_cmd = iocbq->context1;
8884 sgl = (struct sli4_sge *)lpfc_cmd->fcp_bpl;
8885 fcp_cmnd = lpfc_cmd->fcp_cmnd;
8886
8887 /* Word 0-2 - FCP_CMND */
8888 wqe128->generic.bde.tus.f.bdeFlags =
8889 BUFF_TYPE_BDE_IMMED;
8890 wqe128->generic.bde.tus.f.bdeSize = sgl->sge_len;
8891 wqe128->generic.bde.addrHigh = 0;
8892 wqe128->generic.bde.addrLow = 88; /* Word 22 */
8893
8894 bf_set(wqe_wqes, &wqe128->fcp_iwrite.wqe_com, 1);
8895
8896 /* Word 22-29 FCP CMND Payload */
8897 ptr = &wqe128->words[22];
8898 memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
8899 }
James Smart7851fe22011-07-22 18:36:52 -04008900 break;
James Smartf0d9bcc2010-10-22 11:07:09 -04008901 case CMD_FCP_IREAD64_CR:
8902 /* word3 iocb=iotag wqe=payload_offset_len */
8903 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
James Smart0ba4b212013-10-10 12:22:38 -04008904 bf_set(payload_offset_len, &wqe->fcp_iread,
8905 xmit_len + sizeof(struct fcp_rsp));
8906 bf_set(cmd_buff_len, &wqe->fcp_iread,
8907 0);
James Smartf0d9bcc2010-10-22 11:07:09 -04008908 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
8909 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
8910 bf_set(wqe_erp, &wqe->fcp_iread.wqe_com,
8911 iocbq->iocb.ulpFCP2Rcvy);
8912 bf_set(wqe_lnk, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpXS);
James Smart4f774512009-05-22 14:52:35 -04008913 /* Always open the exchange */
James Smartf0d9bcc2010-10-22 11:07:09 -04008914 bf_set(wqe_iod, &wqe->fcp_iread.wqe_com, LPFC_WQE_IOD_READ);
8915 bf_set(wqe_lenloc, &wqe->fcp_iread.wqe_com,
8916 LPFC_WQE_LENLOC_WORD4);
James Smartf0d9bcc2010-10-22 11:07:09 -04008917 bf_set(wqe_pu, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpPU);
James Smartacd68592012-01-18 16:25:09 -05008918 bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 1);
James Smart1ba981f2014-02-20 09:56:45 -05008919 if (iocbq->iocb_flag & LPFC_IO_OAS) {
8920 bf_set(wqe_oas, &wqe->fcp_iread.wqe_com, 1);
James Smartc92c8412016-07-06 12:36:05 -07008921 bf_set(wqe_ccpe, &wqe->fcp_iread.wqe_com, 1);
8922 if (iocbq->priority) {
8923 bf_set(wqe_ccp, &wqe->fcp_iread.wqe_com,
8924 (iocbq->priority << 1));
8925 } else {
James Smart1ba981f2014-02-20 09:56:45 -05008926 bf_set(wqe_ccp, &wqe->fcp_iread.wqe_com,
8927 (phba->cfg_XLanePriority << 1));
8928 }
8929 }
James Smartb5c53952016-03-31 14:12:30 -07008930 /* Note, word 10 is already initialized to 0 */
8931
8932 if (phba->fcp_embed_io) {
8933 struct lpfc_scsi_buf *lpfc_cmd;
8934 struct sli4_sge *sgl;
8935 union lpfc_wqe128 *wqe128;
8936 struct fcp_cmnd *fcp_cmnd;
8937 uint32_t *ptr;
8938
8939 /* 128 byte wqe support here */
8940 wqe128 = (union lpfc_wqe128 *)wqe;
8941
8942 lpfc_cmd = iocbq->context1;
8943 sgl = (struct sli4_sge *)lpfc_cmd->fcp_bpl;
8944 fcp_cmnd = lpfc_cmd->fcp_cmnd;
8945
8946 /* Word 0-2 - FCP_CMND */
8947 wqe128->generic.bde.tus.f.bdeFlags =
8948 BUFF_TYPE_BDE_IMMED;
8949 wqe128->generic.bde.tus.f.bdeSize = sgl->sge_len;
8950 wqe128->generic.bde.addrHigh = 0;
8951 wqe128->generic.bde.addrLow = 88; /* Word 22 */
8952
8953 bf_set(wqe_wqes, &wqe128->fcp_iread.wqe_com, 1);
8954
8955 /* Word 22-29 FCP CMND Payload */
8956 ptr = &wqe128->words[22];
8957 memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
8958 }
James Smart7851fe22011-07-22 18:36:52 -04008959 break;
James Smartf1126682009-06-10 17:22:44 -04008960 case CMD_FCP_ICMND64_CR:
James Smart0ba4b212013-10-10 12:22:38 -04008961 /* word3 iocb=iotag wqe=payload_offset_len */
8962 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8963 bf_set(payload_offset_len, &wqe->fcp_icmd,
8964 xmit_len + sizeof(struct fcp_rsp));
8965 bf_set(cmd_buff_len, &wqe->fcp_icmd,
8966 0);
James Smartf0d9bcc2010-10-22 11:07:09 -04008967 /* word3 iocb=IO_TAG wqe=reserved */
James Smartf0d9bcc2010-10-22 11:07:09 -04008968 bf_set(wqe_pu, &wqe->fcp_icmd.wqe_com, 0);
James Smartf1126682009-06-10 17:22:44 -04008969 /* Always open the exchange */
James Smartf0d9bcc2010-10-22 11:07:09 -04008970 bf_set(wqe_dbde, &wqe->fcp_icmd.wqe_com, 1);
8971 bf_set(wqe_iod, &wqe->fcp_icmd.wqe_com, LPFC_WQE_IOD_WRITE);
8972 bf_set(wqe_qosd, &wqe->fcp_icmd.wqe_com, 1);
8973 bf_set(wqe_lenloc, &wqe->fcp_icmd.wqe_com,
8974 LPFC_WQE_LENLOC_NONE);
James Smart2a94aea2012-09-29 11:30:31 -04008975 bf_set(wqe_erp, &wqe->fcp_icmd.wqe_com,
8976 iocbq->iocb.ulpFCP2Rcvy);
James Smart1ba981f2014-02-20 09:56:45 -05008977 if (iocbq->iocb_flag & LPFC_IO_OAS) {
8978 bf_set(wqe_oas, &wqe->fcp_icmd.wqe_com, 1);
James Smartc92c8412016-07-06 12:36:05 -07008979 bf_set(wqe_ccpe, &wqe->fcp_icmd.wqe_com, 1);
8980 if (iocbq->priority) {
8981 bf_set(wqe_ccp, &wqe->fcp_icmd.wqe_com,
8982 (iocbq->priority << 1));
8983 } else {
James Smart1ba981f2014-02-20 09:56:45 -05008984 bf_set(wqe_ccp, &wqe->fcp_icmd.wqe_com,
8985 (phba->cfg_XLanePriority << 1));
8986 }
8987 }
James Smartb5c53952016-03-31 14:12:30 -07008988 /* Note, word 10 is already initialized to 0 */
8989
8990 if (phba->fcp_embed_io) {
8991 struct lpfc_scsi_buf *lpfc_cmd;
8992 struct sli4_sge *sgl;
8993 union lpfc_wqe128 *wqe128;
8994 struct fcp_cmnd *fcp_cmnd;
8995 uint32_t *ptr;
8996
8997 /* 128 byte wqe support here */
8998 wqe128 = (union lpfc_wqe128 *)wqe;
8999
9000 lpfc_cmd = iocbq->context1;
9001 sgl = (struct sli4_sge *)lpfc_cmd->fcp_bpl;
9002 fcp_cmnd = lpfc_cmd->fcp_cmnd;
9003
9004 /* Word 0-2 - FCP_CMND */
9005 wqe128->generic.bde.tus.f.bdeFlags =
9006 BUFF_TYPE_BDE_IMMED;
9007 wqe128->generic.bde.tus.f.bdeSize = sgl->sge_len;
9008 wqe128->generic.bde.addrHigh = 0;
9009 wqe128->generic.bde.addrLow = 88; /* Word 22 */
9010
9011 bf_set(wqe_wqes, &wqe128->fcp_icmd.wqe_com, 1);
9012
9013 /* Word 22-29 FCP CMND Payload */
9014 ptr = &wqe128->words[22];
9015 memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
9016 }
James Smart7851fe22011-07-22 18:36:52 -04009017 break;
James Smart4f774512009-05-22 14:52:35 -04009018 case CMD_GEN_REQUEST64_CR:
James Smart63e801c2010-11-20 23:14:19 -05009019 /* For this command calculate the xmit length of the
9020 * request bde.
9021 */
9022 xmit_len = 0;
9023 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
9024 sizeof(struct ulp_bde64);
9025 for (i = 0; i < numBdes; i++) {
James Smart63e801c2010-11-20 23:14:19 -05009026 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
James Smart546fc852011-03-11 16:06:29 -05009027 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
9028 break;
James Smart63e801c2010-11-20 23:14:19 -05009029 xmit_len += bde.tus.f.bdeSize;
9030 }
James Smartf0d9bcc2010-10-22 11:07:09 -04009031 /* word3 iocb=IO_TAG wqe=request_payload_len */
9032 wqe->gen_req.request_payload_len = xmit_len;
9033 /* word4 iocb=parameter wqe=relative_offset memcpy */
9034 /* word5 [rctl, type, df_ctl, la] copied in memcpy */
James Smart4f774512009-05-22 14:52:35 -04009035 /* word6 context tag copied in memcpy */
9036 if (iocbq->iocb.ulpCt_h || iocbq->iocb.ulpCt_l) {
9037 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
9038 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9039 "2015 Invalid CT %x command 0x%x\n",
9040 ct, iocbq->iocb.ulpCommand);
9041 return IOCB_ERROR;
9042 }
James Smartf0d9bcc2010-10-22 11:07:09 -04009043 bf_set(wqe_ct, &wqe->gen_req.wqe_com, 0);
9044 bf_set(wqe_tmo, &wqe->gen_req.wqe_com, iocbq->iocb.ulpTimeout);
9045 bf_set(wqe_pu, &wqe->gen_req.wqe_com, iocbq->iocb.ulpPU);
9046 bf_set(wqe_dbde, &wqe->gen_req.wqe_com, 1);
9047 bf_set(wqe_iod, &wqe->gen_req.wqe_com, LPFC_WQE_IOD_READ);
9048 bf_set(wqe_qosd, &wqe->gen_req.wqe_com, 1);
9049 bf_set(wqe_lenloc, &wqe->gen_req.wqe_com, LPFC_WQE_LENLOC_NONE);
9050 bf_set(wqe_ebde_cnt, &wqe->gen_req.wqe_com, 0);
James Smartaf227412013-10-10 12:23:10 -04009051 wqe->gen_req.max_response_payload_len = total_len - xmit_len;
James Smart4f774512009-05-22 14:52:35 -04009052 command_type = OTHER_COMMAND;
James Smart7851fe22011-07-22 18:36:52 -04009053 break;
James Smart4f774512009-05-22 14:52:35 -04009054 case CMD_XMIT_ELS_RSP64_CX:
James Smartc31098c2011-04-16 11:03:33 -04009055 ndlp = (struct lpfc_nodelist *)iocbq->context1;
James Smart4f774512009-05-22 14:52:35 -04009056 /* words0-2 BDE memcpy */
James Smartf0d9bcc2010-10-22 11:07:09 -04009057 /* word3 iocb=iotag32 wqe=response_payload_len */
9058 wqe->xmit_els_rsp.response_payload_len = xmit_len;
James Smart939723a2012-05-09 21:19:03 -04009059 /* word4 */
9060 wqe->xmit_els_rsp.word4 = 0;
James Smart4f774512009-05-22 14:52:35 -04009061 /* word5 iocb=rsvd wge=did */
9062 bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest,
James Smart939723a2012-05-09 21:19:03 -04009063 iocbq->iocb.un.xseq64.xmit_els_remoteID);
9064
9065 if_type = bf_get(lpfc_sli_intf_if_type,
9066 &phba->sli4_hba.sli_intf);
9067 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
9068 if (iocbq->vport->fc_flag & FC_PT2PT) {
9069 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
9070 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
9071 iocbq->vport->fc_myDID);
9072 if (iocbq->vport->fc_myDID == Fabric_DID) {
9073 bf_set(wqe_els_did,
9074 &wqe->xmit_els_rsp.wqe_dest, 0);
9075 }
9076 }
9077 }
James Smartf0d9bcc2010-10-22 11:07:09 -04009078 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com,
9079 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
9080 bf_set(wqe_pu, &wqe->xmit_els_rsp.wqe_com, iocbq->iocb.ulpPU);
9081 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
James Smart7851fe22011-07-22 18:36:52 -04009082 iocbq->iocb.unsli3.rcvsli3.ox_id);
James Smart4f774512009-05-22 14:52:35 -04009083 if (!iocbq->iocb.ulpCt_h && iocbq->iocb.ulpCt_l)
James Smartf0d9bcc2010-10-22 11:07:09 -04009084 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
James Smart6d368e52011-05-24 11:44:12 -04009085 phba->vpi_ids[iocbq->vport->vpi]);
James Smartf0d9bcc2010-10-22 11:07:09 -04009086 bf_set(wqe_dbde, &wqe->xmit_els_rsp.wqe_com, 1);
9087 bf_set(wqe_iod, &wqe->xmit_els_rsp.wqe_com, LPFC_WQE_IOD_WRITE);
9088 bf_set(wqe_qosd, &wqe->xmit_els_rsp.wqe_com, 1);
9089 bf_set(wqe_lenloc, &wqe->xmit_els_rsp.wqe_com,
9090 LPFC_WQE_LENLOC_WORD3);
9091 bf_set(wqe_ebde_cnt, &wqe->xmit_els_rsp.wqe_com, 0);
James Smart6d368e52011-05-24 11:44:12 -04009092 bf_set(wqe_rsp_temp_rpi, &wqe->xmit_els_rsp,
9093 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
James Smartff78d8f2011-12-13 13:21:35 -05009094 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
9095 iocbq->context2)->virt);
9096 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
James Smart939723a2012-05-09 21:19:03 -04009097 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
9098 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
James Smartff78d8f2011-12-13 13:21:35 -05009099 iocbq->vport->fc_myDID);
James Smart939723a2012-05-09 21:19:03 -04009100 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com, 1);
9101 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
James Smartff78d8f2011-12-13 13:21:35 -05009102 phba->vpi_ids[phba->pport->vpi]);
9103 }
James Smart4f774512009-05-22 14:52:35 -04009104 command_type = OTHER_COMMAND;
James Smart7851fe22011-07-22 18:36:52 -04009105 break;
James Smart4f774512009-05-22 14:52:35 -04009106 case CMD_CLOSE_XRI_CN:
9107 case CMD_ABORT_XRI_CN:
9108 case CMD_ABORT_XRI_CX:
9109 /* words 0-2 memcpy should be 0 rserved */
9110 /* port will send abts */
James Smartdcf2a4e2010-09-29 11:18:53 -04009111 abrt_iotag = iocbq->iocb.un.acxri.abortContextTag;
9112 if (abrt_iotag != 0 && abrt_iotag <= phba->sli.last_iotag) {
9113 abrtiocbq = phba->sli.iocbq_lookup[abrt_iotag];
9114 fip = abrtiocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK;
9115 } else
9116 fip = 0;
9117
9118 if ((iocbq->iocb.ulpCommand == CMD_CLOSE_XRI_CN) || fip)
James Smart4f774512009-05-22 14:52:35 -04009119 /*
James Smartdcf2a4e2010-09-29 11:18:53 -04009120 * The link is down, or the command was ELS_FIP
9121 * so the fw does not need to send abts
James Smart4f774512009-05-22 14:52:35 -04009122 * on the wire.
9123 */
9124 bf_set(abort_cmd_ia, &wqe->abort_cmd, 1);
9125 else
9126 bf_set(abort_cmd_ia, &wqe->abort_cmd, 0);
9127 bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG);
James Smartf0d9bcc2010-10-22 11:07:09 -04009128 /* word5 iocb=CONTEXT_TAG|IO_TAG wqe=reserved */
9129 wqe->abort_cmd.rsrvd5 = 0;
9130 bf_set(wqe_ct, &wqe->abort_cmd.wqe_com,
James Smart4f774512009-05-22 14:52:35 -04009131 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
9132 abort_tag = iocbq->iocb.un.acxri.abortIoTag;
James Smart4f774512009-05-22 14:52:35 -04009133 /*
9134 * The abort handler will send us CMD_ABORT_XRI_CN or
9135 * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX
9136 */
James Smartf0d9bcc2010-10-22 11:07:09 -04009137 bf_set(wqe_cmnd, &wqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX);
9138 bf_set(wqe_qosd, &wqe->abort_cmd.wqe_com, 1);
9139 bf_set(wqe_lenloc, &wqe->abort_cmd.wqe_com,
9140 LPFC_WQE_LENLOC_NONE);
James Smart4f774512009-05-22 14:52:35 -04009141 cmnd = CMD_ABORT_XRI_CX;
9142 command_type = OTHER_COMMAND;
9143 xritag = 0;
James Smart7851fe22011-07-22 18:36:52 -04009144 break;
James Smart6669f9b2009-10-02 15:16:45 -04009145 case CMD_XMIT_BLS_RSP64_CX:
James Smart6b5151f2012-01-18 16:24:06 -05009146 ndlp = (struct lpfc_nodelist *)iocbq->context1;
James Smart546fc852011-03-11 16:06:29 -05009147 /* As BLS ABTS RSP WQE is very different from other WQEs,
James Smart6669f9b2009-10-02 15:16:45 -04009148 * we re-construct this WQE here based on information in
9149 * iocbq from scratch.
9150 */
9151 memset(wqe, 0, sizeof(union lpfc_wqe));
James Smart5ffc2662009-11-18 15:39:44 -05009152 /* OX_ID is invariable to who sent ABTS to CT exchange */
James Smart6669f9b2009-10-02 15:16:45 -04009153 bf_set(xmit_bls_rsp64_oxid, &wqe->xmit_bls_rsp,
James Smart546fc852011-03-11 16:06:29 -05009154 bf_get(lpfc_abts_oxid, &iocbq->iocb.un.bls_rsp));
9155 if (bf_get(lpfc_abts_orig, &iocbq->iocb.un.bls_rsp) ==
James Smart5ffc2662009-11-18 15:39:44 -05009156 LPFC_ABTS_UNSOL_INT) {
9157 /* ABTS sent by initiator to CT exchange, the
9158 * RX_ID field will be filled with the newly
9159 * allocated responder XRI.
9160 */
9161 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
9162 iocbq->sli4_xritag);
9163 } else {
9164 /* ABTS sent by responder to CT exchange, the
9165 * RX_ID field will be filled with the responder
9166 * RX_ID from ABTS.
9167 */
9168 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
James Smart546fc852011-03-11 16:06:29 -05009169 bf_get(lpfc_abts_rxid, &iocbq->iocb.un.bls_rsp));
James Smart5ffc2662009-11-18 15:39:44 -05009170 }
James Smart6669f9b2009-10-02 15:16:45 -04009171 bf_set(xmit_bls_rsp64_seqcnthi, &wqe->xmit_bls_rsp, 0xffff);
9172 bf_set(wqe_xmit_bls_pt, &wqe->xmit_bls_rsp.wqe_dest, 0x1);
James Smart6b5151f2012-01-18 16:24:06 -05009173
9174 /* Use CT=VPI */
9175 bf_set(wqe_els_did, &wqe->xmit_bls_rsp.wqe_dest,
9176 ndlp->nlp_DID);
9177 bf_set(xmit_bls_rsp64_temprpi, &wqe->xmit_bls_rsp,
9178 iocbq->iocb.ulpContext);
9179 bf_set(wqe_ct, &wqe->xmit_bls_rsp.wqe_com, 1);
James Smart6669f9b2009-10-02 15:16:45 -04009180 bf_set(wqe_ctxt_tag, &wqe->xmit_bls_rsp.wqe_com,
James Smart6b5151f2012-01-18 16:24:06 -05009181 phba->vpi_ids[phba->pport->vpi]);
James Smartf0d9bcc2010-10-22 11:07:09 -04009182 bf_set(wqe_qosd, &wqe->xmit_bls_rsp.wqe_com, 1);
9183 bf_set(wqe_lenloc, &wqe->xmit_bls_rsp.wqe_com,
9184 LPFC_WQE_LENLOC_NONE);
James Smart6669f9b2009-10-02 15:16:45 -04009185 /* Overwrite the pre-set comnd type with OTHER_COMMAND */
9186 command_type = OTHER_COMMAND;
James Smart546fc852011-03-11 16:06:29 -05009187 if (iocbq->iocb.un.xseq64.w5.hcsw.Rctl == FC_RCTL_BA_RJT) {
9188 bf_set(xmit_bls_rsp64_rjt_vspec, &wqe->xmit_bls_rsp,
9189 bf_get(lpfc_vndr_code, &iocbq->iocb.un.bls_rsp));
9190 bf_set(xmit_bls_rsp64_rjt_expc, &wqe->xmit_bls_rsp,
9191 bf_get(lpfc_rsn_expln, &iocbq->iocb.un.bls_rsp));
9192 bf_set(xmit_bls_rsp64_rjt_rsnc, &wqe->xmit_bls_rsp,
9193 bf_get(lpfc_rsn_code, &iocbq->iocb.un.bls_rsp));
9194 }
9195
James Smart7851fe22011-07-22 18:36:52 -04009196 break;
James Smartae9e28f2017-05-15 15:20:51 -07009197 case CMD_SEND_FRAME:
9198 bf_set(wqe_xri_tag, &wqe->generic.wqe_com, xritag);
9199 bf_set(wqe_reqtag, &wqe->generic.wqe_com, iocbq->iotag);
9200 return 0;
James Smart4f774512009-05-22 14:52:35 -04009201 case CMD_XRI_ABORTED_CX:
9202 case CMD_CREATE_XRI_CR: /* Do we expect to use this? */
James Smart4f774512009-05-22 14:52:35 -04009203 case CMD_IOCB_FCP_IBIDIR64_CR: /* bidirectional xfer */
9204 case CMD_FCP_TSEND64_CX: /* Target mode send xfer-ready */
9205 case CMD_FCP_TRSP64_CX: /* Target mode rcv */
9206 case CMD_FCP_AUTO_TRSP_CX: /* Auto target rsp */
9207 default:
9208 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9209 "2014 Invalid command 0x%x\n",
9210 iocbq->iocb.ulpCommand);
9211 return IOCB_ERROR;
James Smart7851fe22011-07-22 18:36:52 -04009212 break;
James Smart4f774512009-05-22 14:52:35 -04009213 }
James Smart6d368e52011-05-24 11:44:12 -04009214
James Smart8012cc32012-10-31 14:44:49 -04009215 if (iocbq->iocb_flag & LPFC_IO_DIF_PASS)
9216 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_PASSTHRU);
9217 else if (iocbq->iocb_flag & LPFC_IO_DIF_STRIP)
9218 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_STRIP);
9219 else if (iocbq->iocb_flag & LPFC_IO_DIF_INSERT)
9220 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_INSERT);
9221 iocbq->iocb_flag &= ~(LPFC_IO_DIF_PASS | LPFC_IO_DIF_STRIP |
9222 LPFC_IO_DIF_INSERT);
James Smartf0d9bcc2010-10-22 11:07:09 -04009223 bf_set(wqe_xri_tag, &wqe->generic.wqe_com, xritag);
9224 bf_set(wqe_reqtag, &wqe->generic.wqe_com, iocbq->iotag);
9225 wqe->generic.wqe_com.abort_tag = abort_tag;
9226 bf_set(wqe_cmd_type, &wqe->generic.wqe_com, command_type);
9227 bf_set(wqe_cmnd, &wqe->generic.wqe_com, cmnd);
9228 bf_set(wqe_class, &wqe->generic.wqe_com, iocbq->iocb.ulpClass);
9229 bf_set(wqe_cqid, &wqe->generic.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
James Smart4f774512009-05-22 14:52:35 -04009230 return 0;
9231}
9232
9233/**
9234 * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
9235 * @phba: Pointer to HBA context object.
9236 * @ring_number: SLI ring number to issue iocb on.
9237 * @piocb: Pointer to command iocb.
9238 * @flag: Flag indicating if this command can be put into txq.
9239 *
9240 * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
9241 * an iocb command to an HBA with SLI-4 interface spec.
9242 *
9243 * This function is called with hbalock held. The function will return success
9244 * after it successfully submit the iocb to firmware or after adding to the
9245 * txq.
9246 **/
9247static int
9248__lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
9249 struct lpfc_iocbq *piocb, uint32_t flag)
9250{
9251 struct lpfc_sglq *sglq;
James Smartb5c53952016-03-31 14:12:30 -07009252 union lpfc_wqe *wqe;
9253 union lpfc_wqe128 wqe128;
James Smart1ba981f2014-02-20 09:56:45 -05009254 struct lpfc_queue *wq;
James Smart895427b2017-02-12 13:52:30 -08009255 struct lpfc_sli_ring *pring;
James Smart4f774512009-05-22 14:52:35 -04009256
James Smart895427b2017-02-12 13:52:30 -08009257 /* Get the WQ */
9258 if ((piocb->iocb_flag & LPFC_IO_FCP) ||
9259 (piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
9260 if (!phba->cfg_fof || (!(piocb->iocb_flag & LPFC_IO_OAS)))
9261 wq = phba->sli4_hba.fcp_wq[piocb->hba_wqidx];
9262 else
9263 wq = phba->sli4_hba.oas_wq;
9264 } else {
9265 wq = phba->sli4_hba.els_wq;
9266 }
9267
9268 /* Get corresponding ring */
9269 pring = wq->pring;
Johannes Thumshirn1c2ba472016-01-20 16:22:22 +01009270
James Smartb5c53952016-03-31 14:12:30 -07009271 /*
9272 * The WQE can be either 64 or 128 bytes,
9273 * so allocate space on the stack assuming the largest.
9274 */
9275 wqe = (union lpfc_wqe *)&wqe128;
9276
James Smart895427b2017-02-12 13:52:30 -08009277 lockdep_assert_held(&phba->hbalock);
9278
James Smart4f774512009-05-22 14:52:35 -04009279 if (piocb->sli4_xritag == NO_XRI) {
9280 if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
James Smart6b5151f2012-01-18 16:24:06 -05009281 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
James Smart4f774512009-05-22 14:52:35 -04009282 sglq = NULL;
9283 else {
James Smart0e9bb8d2013-03-01 16:35:12 -05009284 if (!list_empty(&pring->txq)) {
James Smart2a9bf3d2010-06-07 15:24:45 -04009285 if (!(flag & SLI_IOCB_RET_IOCB)) {
9286 __lpfc_sli_ringtx_put(phba,
9287 pring, piocb);
9288 return IOCB_SUCCESS;
9289 } else {
9290 return IOCB_BUSY;
9291 }
9292 } else {
James Smart895427b2017-02-12 13:52:30 -08009293 sglq = __lpfc_sli_get_els_sglq(phba, piocb);
James Smart2a9bf3d2010-06-07 15:24:45 -04009294 if (!sglq) {
9295 if (!(flag & SLI_IOCB_RET_IOCB)) {
9296 __lpfc_sli_ringtx_put(phba,
9297 pring,
9298 piocb);
9299 return IOCB_SUCCESS;
9300 } else
9301 return IOCB_BUSY;
9302 }
9303 }
James Smart4f774512009-05-22 14:52:35 -04009304 }
James Smart2ea259e2017-02-12 13:52:27 -08009305 } else if (piocb->iocb_flag & LPFC_IO_FCP)
James Smart6d368e52011-05-24 11:44:12 -04009306 /* These IO's already have an XRI and a mapped sgl. */
9307 sglq = NULL;
James Smart2ea259e2017-02-12 13:52:27 -08009308 else {
James Smart6d368e52011-05-24 11:44:12 -04009309 /*
9310 * This is a continuation of a commandi,(CX) so this
James Smart4f774512009-05-22 14:52:35 -04009311 * sglq is on the active list
9312 */
James Smartedccdc12013-01-03 15:43:45 -05009313 sglq = __lpfc_get_active_sglq(phba, piocb->sli4_lxritag);
James Smart4f774512009-05-22 14:52:35 -04009314 if (!sglq)
9315 return IOCB_ERROR;
9316 }
9317
9318 if (sglq) {
James Smart6d368e52011-05-24 11:44:12 -04009319 piocb->sli4_lxritag = sglq->sli4_lxritag;
James Smart2a9bf3d2010-06-07 15:24:45 -04009320 piocb->sli4_xritag = sglq->sli4_xritag;
James Smart2a9bf3d2010-06-07 15:24:45 -04009321 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocb, sglq))
James Smart4f774512009-05-22 14:52:35 -04009322 return IOCB_ERROR;
9323 }
9324
James Smartb5c53952016-03-31 14:12:30 -07009325 if (lpfc_sli4_iocb2wqe(phba, piocb, wqe))
James Smart4f774512009-05-22 14:52:35 -04009326 return IOCB_ERROR;
9327
James Smart895427b2017-02-12 13:52:30 -08009328 if (lpfc_sli4_wq_put(wq, wqe))
9329 return IOCB_ERROR;
James Smart4f774512009-05-22 14:52:35 -04009330 lpfc_sli_ringtxcmpl_put(phba, pring, piocb);
9331
9332 return 0;
9333}
9334
9335/**
James Smart3772a992009-05-22 14:50:54 -04009336 * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
9337 *
9338 * This routine wraps the actual lockless version for issusing IOCB function
9339 * pointer from the lpfc_hba struct.
9340 *
9341 * Return codes:
James Smartb5c53952016-03-31 14:12:30 -07009342 * IOCB_ERROR - Error
9343 * IOCB_SUCCESS - Success
9344 * IOCB_BUSY - Busy
James Smart3772a992009-05-22 14:50:54 -04009345 **/
James Smart2a9bf3d2010-06-07 15:24:45 -04009346int
James Smart3772a992009-05-22 14:50:54 -04009347__lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
9348 struct lpfc_iocbq *piocb, uint32_t flag)
9349{
9350 return phba->__lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
9351}
9352
9353/**
Lucas De Marchi25985ed2011-03-30 22:57:33 -03009354 * lpfc_sli_api_table_setup - Set up sli api function jump table
James Smart3772a992009-05-22 14:50:54 -04009355 * @phba: The hba struct for which this call is being executed.
9356 * @dev_grp: The HBA PCI-Device group number.
9357 *
9358 * This routine sets up the SLI interface API function jump table in @phba
9359 * struct.
9360 * Returns: 0 - success, -ENODEV - failure.
9361 **/
9362int
9363lpfc_sli_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
9364{
9365
9366 switch (dev_grp) {
9367 case LPFC_PCI_DEV_LP:
9368 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s3;
9369 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s3;
9370 break;
James Smart4f774512009-05-22 14:52:35 -04009371 case LPFC_PCI_DEV_OC:
9372 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s4;
9373 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s4;
9374 break;
James Smart3772a992009-05-22 14:50:54 -04009375 default:
9376 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9377 "1419 Invalid HBA PCI-device group: 0x%x\n",
9378 dev_grp);
9379 return -ENODEV;
9380 break;
9381 }
9382 phba->lpfc_get_iocb_from_iocbq = lpfc_get_iocb_from_iocbq;
9383 return 0;
9384}
James Smart92d7f7b2007-06-17 19:56:38 -05009385
James Smarta1efe162015-05-21 13:55:20 -04009386/**
James Smart895427b2017-02-12 13:52:30 -08009387 * lpfc_sli4_calc_ring - Calculates which ring to use
James Smarta1efe162015-05-21 13:55:20 -04009388 * @phba: Pointer to HBA context object.
James Smarta1efe162015-05-21 13:55:20 -04009389 * @piocb: Pointer to command iocb.
9390 *
James Smart895427b2017-02-12 13:52:30 -08009391 * For SLI4 only, FCP IO can deferred to one fo many WQs, based on
9392 * hba_wqidx, thus we need to calculate the corresponding ring.
James Smarta1efe162015-05-21 13:55:20 -04009393 * Since ABORTS must go on the same WQ of the command they are
James Smart895427b2017-02-12 13:52:30 -08009394 * aborting, we use command's hba_wqidx.
James Smarta1efe162015-05-21 13:55:20 -04009395 */
James Smart895427b2017-02-12 13:52:30 -08009396struct lpfc_sli_ring *
9397lpfc_sli4_calc_ring(struct lpfc_hba *phba, struct lpfc_iocbq *piocb)
James Smart9bd2bff52014-09-03 12:57:30 -04009398{
James Smart895427b2017-02-12 13:52:30 -08009399 if (piocb->iocb_flag & (LPFC_IO_FCP | LPFC_USE_FCPWQIDX)) {
James Smart8b0dff12015-05-22 10:42:38 -04009400 if (!(phba->cfg_fof) ||
James Smart895427b2017-02-12 13:52:30 -08009401 (!(piocb->iocb_flag & LPFC_IO_FOF))) {
James Smart8b0dff12015-05-22 10:42:38 -04009402 if (unlikely(!phba->sli4_hba.fcp_wq))
James Smart895427b2017-02-12 13:52:30 -08009403 return NULL;
James Smart8b0dff12015-05-22 10:42:38 -04009404 /*
James Smart895427b2017-02-12 13:52:30 -08009405 * for abort iocb hba_wqidx should already
James Smart8b0dff12015-05-22 10:42:38 -04009406 * be setup based on what work queue we used.
9407 */
Dick Kennedy55d8b652017-09-29 17:34:35 -07009408 if (!(piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
James Smart895427b2017-02-12 13:52:30 -08009409 piocb->hba_wqidx =
James Smart8b0dff12015-05-22 10:42:38 -04009410 lpfc_sli4_scmd_to_wqidx_distr(phba,
9411 piocb->context1);
Dick Kennedy55d8b652017-09-29 17:34:35 -07009412 piocb->hba_wqidx = piocb->hba_wqidx %
9413 phba->cfg_fcp_io_channel;
9414 }
James Smart895427b2017-02-12 13:52:30 -08009415 return phba->sli4_hba.fcp_wq[piocb->hba_wqidx]->pring;
James Smart8b0dff12015-05-22 10:42:38 -04009416 } else {
9417 if (unlikely(!phba->sli4_hba.oas_wq))
James Smart895427b2017-02-12 13:52:30 -08009418 return NULL;
9419 piocb->hba_wqidx = 0;
9420 return phba->sli4_hba.oas_wq->pring;
James Smart9bd2bff52014-09-03 12:57:30 -04009421 }
James Smart895427b2017-02-12 13:52:30 -08009422 } else {
9423 if (unlikely(!phba->sli4_hba.els_wq))
9424 return NULL;
9425 piocb->hba_wqidx = 0;
9426 return phba->sli4_hba.els_wq->pring;
James Smart9bd2bff52014-09-03 12:57:30 -04009427 }
James Smart9bd2bff52014-09-03 12:57:30 -04009428}
9429
James Smarte59058c2008-08-24 21:49:00 -04009430/**
James Smart3621a712009-04-06 18:47:14 -04009431 * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
James Smarte59058c2008-08-24 21:49:00 -04009432 * @phba: Pointer to HBA context object.
9433 * @pring: Pointer to driver SLI ring object.
9434 * @piocb: Pointer to command iocb.
9435 * @flag: Flag indicating if this command can be put into txq.
9436 *
9437 * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
9438 * function. This function gets the hbalock and calls
9439 * __lpfc_sli_issue_iocb function and will return the error returned
9440 * by __lpfc_sli_issue_iocb function. This wrapper is used by
9441 * functions which do not hold hbalock.
9442 **/
James Smart92d7f7b2007-06-17 19:56:38 -05009443int
James Smart3772a992009-05-22 14:50:54 -04009444lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
James Smart92d7f7b2007-06-17 19:56:38 -05009445 struct lpfc_iocbq *piocb, uint32_t flag)
9446{
James Smart895427b2017-02-12 13:52:30 -08009447 struct lpfc_hba_eq_hdl *hba_eq_hdl;
James Smart2a76a282012-08-03 12:35:54 -04009448 struct lpfc_sli_ring *pring;
James Smartba20c852012-08-03 12:36:52 -04009449 struct lpfc_queue *fpeq;
9450 struct lpfc_eqe *eqe;
James Smart92d7f7b2007-06-17 19:56:38 -05009451 unsigned long iflags;
James Smart2a76a282012-08-03 12:35:54 -04009452 int rc, idx;
James Smart92d7f7b2007-06-17 19:56:38 -05009453
James Smart7e56aa22012-08-03 12:35:34 -04009454 if (phba->sli_rev == LPFC_SLI_REV4) {
James Smart895427b2017-02-12 13:52:30 -08009455 pring = lpfc_sli4_calc_ring(phba, piocb);
9456 if (unlikely(pring == NULL))
James Smart9bd2bff52014-09-03 12:57:30 -04009457 return IOCB_ERROR;
James Smartba20c852012-08-03 12:36:52 -04009458
James Smart9bd2bff52014-09-03 12:57:30 -04009459 spin_lock_irqsave(&pring->ring_lock, iflags);
9460 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
9461 spin_unlock_irqrestore(&pring->ring_lock, iflags);
James Smartba20c852012-08-03 12:36:52 -04009462
James Smart9bd2bff52014-09-03 12:57:30 -04009463 if (lpfc_fcp_look_ahead && (piocb->iocb_flag & LPFC_IO_FCP)) {
James Smart895427b2017-02-12 13:52:30 -08009464 idx = piocb->hba_wqidx;
9465 hba_eq_hdl = &phba->sli4_hba.hba_eq_hdl[idx];
James Smartba20c852012-08-03 12:36:52 -04009466
James Smart895427b2017-02-12 13:52:30 -08009467 if (atomic_dec_and_test(&hba_eq_hdl->hba_eq_in_use)) {
James Smartba20c852012-08-03 12:36:52 -04009468
James Smart9bd2bff52014-09-03 12:57:30 -04009469 /* Get associated EQ with this index */
9470 fpeq = phba->sli4_hba.hba_eq[idx];
James Smartba20c852012-08-03 12:36:52 -04009471
James Smart9bd2bff52014-09-03 12:57:30 -04009472 /* Turn off interrupts from this EQ */
9473 lpfc_sli4_eq_clr_intr(fpeq);
James Smartba20c852012-08-03 12:36:52 -04009474
James Smart9bd2bff52014-09-03 12:57:30 -04009475 /*
9476 * Process all the events on FCP EQ
9477 */
9478 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
9479 lpfc_sli4_hba_handle_eqe(phba,
9480 eqe, idx);
9481 fpeq->EQ_processed++;
James Smartba20c852012-08-03 12:36:52 -04009482 }
James Smartba20c852012-08-03 12:36:52 -04009483
James Smart9bd2bff52014-09-03 12:57:30 -04009484 /* Always clear and re-arm the EQ */
9485 lpfc_sli4_eq_release(fpeq,
9486 LPFC_QUEUE_REARM);
9487 }
James Smart895427b2017-02-12 13:52:30 -08009488 atomic_inc(&hba_eq_hdl->hba_eq_in_use);
James Smart2a76a282012-08-03 12:35:54 -04009489 }
James Smart7e56aa22012-08-03 12:35:34 -04009490 } else {
9491 /* For now, SLI2/3 will still use hbalock */
9492 spin_lock_irqsave(&phba->hbalock, iflags);
9493 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
9494 spin_unlock_irqrestore(&phba->hbalock, iflags);
9495 }
James Smart92d7f7b2007-06-17 19:56:38 -05009496 return rc;
9497}
9498
James Smarte59058c2008-08-24 21:49:00 -04009499/**
James Smart3621a712009-04-06 18:47:14 -04009500 * lpfc_extra_ring_setup - Extra ring setup function
James Smarte59058c2008-08-24 21:49:00 -04009501 * @phba: Pointer to HBA context object.
9502 *
9503 * This function is called while driver attaches with the
9504 * HBA to setup the extra ring. The extra ring is used
9505 * only when driver needs to support target mode functionality
9506 * or IP over FC functionalities.
9507 *
James Smart895427b2017-02-12 13:52:30 -08009508 * This function is called with no lock held. SLI3 only.
James Smarte59058c2008-08-24 21:49:00 -04009509 **/
Jamie Wellnitzcf5bf972006-02-28 22:33:08 -05009510static int
9511lpfc_extra_ring_setup( struct lpfc_hba *phba)
9512{
9513 struct lpfc_sli *psli;
9514 struct lpfc_sli_ring *pring;
9515
9516 psli = &phba->sli;
9517
9518 /* Adjust cmd/rsp ring iocb entries more evenly */
James Smarta4bc3372006-12-02 13:34:16 -05009519
9520 /* Take some away from the FCP ring */
James Smart895427b2017-02-12 13:52:30 -08009521 pring = &psli->sli3_ring[LPFC_FCP_RING];
James Smart7e56aa22012-08-03 12:35:34 -04009522 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
9523 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
9524 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
9525 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
Jamie Wellnitzcf5bf972006-02-28 22:33:08 -05009526
James Smarta4bc3372006-12-02 13:34:16 -05009527 /* and give them to the extra ring */
James Smart895427b2017-02-12 13:52:30 -08009528 pring = &psli->sli3_ring[LPFC_EXTRA_RING];
James Smarta4bc3372006-12-02 13:34:16 -05009529
James Smart7e56aa22012-08-03 12:35:34 -04009530 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
9531 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
9532 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
9533 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
Jamie Wellnitzcf5bf972006-02-28 22:33:08 -05009534
9535 /* Setup default profile for this ring */
9536 pring->iotag_max = 4096;
9537 pring->num_mask = 1;
9538 pring->prt[0].profile = 0; /* Mask 0 */
James Smarta4bc3372006-12-02 13:34:16 -05009539 pring->prt[0].rctl = phba->cfg_multi_ring_rctl;
9540 pring->prt[0].type = phba->cfg_multi_ring_type;
Jamie Wellnitzcf5bf972006-02-28 22:33:08 -05009541 pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
9542 return 0;
9543}
9544
James Smartcb69f7d2011-12-13 13:21:57 -05009545/* lpfc_sli_abts_err_handler - handle a failed ABTS request from an SLI3 port.
9546 * @phba: Pointer to HBA context object.
9547 * @iocbq: Pointer to iocb object.
9548 *
9549 * The async_event handler calls this routine when it receives
9550 * an ASYNC_STATUS_CN event from the port. The port generates
9551 * this event when an Abort Sequence request to an rport fails
9552 * twice in succession. The abort could be originated by the
9553 * driver or by the port. The ABTS could have been for an ELS
9554 * or FCP IO. The port only generates this event when an ABTS
9555 * fails to complete after one retry.
9556 */
9557static void
9558lpfc_sli_abts_err_handler(struct lpfc_hba *phba,
9559 struct lpfc_iocbq *iocbq)
9560{
9561 struct lpfc_nodelist *ndlp = NULL;
9562 uint16_t rpi = 0, vpi = 0;
9563 struct lpfc_vport *vport = NULL;
9564
9565 /* The rpi in the ulpContext is vport-sensitive. */
9566 vpi = iocbq->iocb.un.asyncstat.sub_ctxt_tag;
9567 rpi = iocbq->iocb.ulpContext;
9568
9569 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9570 "3092 Port generated ABTS async event "
9571 "on vpi %d rpi %d status 0x%x\n",
9572 vpi, rpi, iocbq->iocb.ulpStatus);
9573
9574 vport = lpfc_find_vport_by_vpid(phba, vpi);
9575 if (!vport)
9576 goto err_exit;
9577 ndlp = lpfc_findnode_rpi(vport, rpi);
9578 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
9579 goto err_exit;
9580
9581 if (iocbq->iocb.ulpStatus == IOSTAT_LOCAL_REJECT)
9582 lpfc_sli_abts_recover_port(vport, ndlp);
9583 return;
9584
9585 err_exit:
9586 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9587 "3095 Event Context not found, no "
9588 "action on vpi %d rpi %d status 0x%x, reason 0x%x\n",
9589 iocbq->iocb.ulpContext, iocbq->iocb.ulpStatus,
9590 vpi, rpi);
9591}
9592
9593/* lpfc_sli4_abts_err_handler - handle a failed ABTS request from an SLI4 port.
9594 * @phba: pointer to HBA context object.
9595 * @ndlp: nodelist pointer for the impacted rport.
9596 * @axri: pointer to the wcqe containing the failed exchange.
9597 *
9598 * The driver calls this routine when it receives an ABORT_XRI_FCP CQE from the
9599 * port. The port generates this event when an abort exchange request to an
9600 * rport fails twice in succession with no reply. The abort could be originated
9601 * by the driver or by the port. The ABTS could have been for an ELS or FCP IO.
9602 */
9603void
9604lpfc_sli4_abts_err_handler(struct lpfc_hba *phba,
9605 struct lpfc_nodelist *ndlp,
9606 struct sli4_wcqe_xri_aborted *axri)
9607{
9608 struct lpfc_vport *vport;
James Smart5c1db2a2012-03-01 22:34:36 -05009609 uint32_t ext_status = 0;
James Smartcb69f7d2011-12-13 13:21:57 -05009610
James Smart6b5151f2012-01-18 16:24:06 -05009611 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
James Smartcb69f7d2011-12-13 13:21:57 -05009612 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9613 "3115 Node Context not found, driver "
9614 "ignoring abts err event\n");
James Smart6b5151f2012-01-18 16:24:06 -05009615 return;
9616 }
9617
James Smartcb69f7d2011-12-13 13:21:57 -05009618 vport = ndlp->vport;
9619 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9620 "3116 Port generated FCP XRI ABORT event on "
James Smart5c1db2a2012-03-01 22:34:36 -05009621 "vpi %d rpi %d xri x%x status 0x%x parameter x%x\n",
James Smart8e668af2013-05-31 17:04:28 -04009622 ndlp->vport->vpi, phba->sli4_hba.rpi_ids[ndlp->nlp_rpi],
James Smartcb69f7d2011-12-13 13:21:57 -05009623 bf_get(lpfc_wcqe_xa_xri, axri),
James Smart5c1db2a2012-03-01 22:34:36 -05009624 bf_get(lpfc_wcqe_xa_status, axri),
9625 axri->parameter);
James Smartcb69f7d2011-12-13 13:21:57 -05009626
James Smart5c1db2a2012-03-01 22:34:36 -05009627 /*
9628 * Catch the ABTS protocol failure case. Older OCe FW releases returned
9629 * LOCAL_REJECT and 0 for a failed ABTS exchange and later OCe and
9630 * LPe FW releases returned LOCAL_REJECT and SEQUENCE_TIMEOUT.
9631 */
James Smarte3d2b802012-08-14 14:25:43 -04009632 ext_status = axri->parameter & IOERR_PARAM_MASK;
James Smart5c1db2a2012-03-01 22:34:36 -05009633 if ((bf_get(lpfc_wcqe_xa_status, axri) == IOSTAT_LOCAL_REJECT) &&
9634 ((ext_status == IOERR_SEQUENCE_TIMEOUT) || (ext_status == 0)))
James Smartcb69f7d2011-12-13 13:21:57 -05009635 lpfc_sli_abts_recover_port(vport, ndlp);
9636}
9637
James Smarte59058c2008-08-24 21:49:00 -04009638/**
James Smart3621a712009-04-06 18:47:14 -04009639 * lpfc_sli_async_event_handler - ASYNC iocb handler function
James Smarte59058c2008-08-24 21:49:00 -04009640 * @phba: Pointer to HBA context object.
9641 * @pring: Pointer to driver SLI ring object.
9642 * @iocbq: Pointer to iocb object.
9643 *
9644 * This function is called by the slow ring event handler
9645 * function when there is an ASYNC event iocb in the ring.
9646 * This function is called with no lock held.
9647 * Currently this function handles only temperature related
9648 * ASYNC events. The function decodes the temperature sensor
9649 * event message and posts events for the management applications.
9650 **/
James Smart98c9ea52007-10-27 13:37:33 -04009651static void
James Smart57127f12007-10-27 13:37:05 -04009652lpfc_sli_async_event_handler(struct lpfc_hba * phba,
9653 struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq)
9654{
9655 IOCB_t *icmd;
9656 uint16_t evt_code;
James Smart57127f12007-10-27 13:37:05 -04009657 struct temp_event temp_event_data;
9658 struct Scsi_Host *shost;
James Smarta257bf92009-04-06 18:48:10 -04009659 uint32_t *iocb_w;
James Smart57127f12007-10-27 13:37:05 -04009660
9661 icmd = &iocbq->iocb;
9662 evt_code = icmd->un.asyncstat.evt_code;
James Smart57127f12007-10-27 13:37:05 -04009663
James Smartcb69f7d2011-12-13 13:21:57 -05009664 switch (evt_code) {
9665 case ASYNC_TEMP_WARN:
9666 case ASYNC_TEMP_SAFE:
9667 temp_event_data.data = (uint32_t) icmd->ulpContext;
9668 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
9669 if (evt_code == ASYNC_TEMP_WARN) {
9670 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
9671 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
9672 "0347 Adapter is very hot, please take "
9673 "corrective action. temperature : %d Celsius\n",
9674 (uint32_t) icmd->ulpContext);
9675 } else {
9676 temp_event_data.event_code = LPFC_NORMAL_TEMP;
9677 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
9678 "0340 Adapter temperature is OK now. "
9679 "temperature : %d Celsius\n",
9680 (uint32_t) icmd->ulpContext);
9681 }
9682
9683 /* Send temperature change event to applications */
9684 shost = lpfc_shost_from_vport(phba->pport);
9685 fc_host_post_vendor_event(shost, fc_get_event_number(),
9686 sizeof(temp_event_data), (char *) &temp_event_data,
9687 LPFC_NL_VENDOR_ID);
9688 break;
9689 case ASYNC_STATUS_CN:
9690 lpfc_sli_abts_err_handler(phba, iocbq);
9691 break;
9692 default:
James Smarta257bf92009-04-06 18:48:10 -04009693 iocb_w = (uint32_t *) icmd;
James Smartcb69f7d2011-12-13 13:21:57 -05009694 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smart76bb24e2007-10-27 13:38:00 -04009695 "0346 Ring %d handler: unexpected ASYNC_STATUS"
James Smarte4e74272009-07-19 10:01:38 -04009696 " evt_code 0x%x\n"
James Smarta257bf92009-04-06 18:48:10 -04009697 "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
9698 "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
9699 "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
9700 "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
James Smartcb69f7d2011-12-13 13:21:57 -05009701 pring->ringno, icmd->un.asyncstat.evt_code,
James Smarta257bf92009-04-06 18:48:10 -04009702 iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3],
9703 iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7],
9704 iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11],
9705 iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]);
9706
James Smartcb69f7d2011-12-13 13:21:57 -05009707 break;
James Smart57127f12007-10-27 13:37:05 -04009708 }
James Smart57127f12007-10-27 13:37:05 -04009709}
9710
9711
James Smarte59058c2008-08-24 21:49:00 -04009712/**
James Smart895427b2017-02-12 13:52:30 -08009713 * lpfc_sli4_setup - SLI ring setup function
James Smarte59058c2008-08-24 21:49:00 -04009714 * @phba: Pointer to HBA context object.
9715 *
9716 * lpfc_sli_setup sets up rings of the SLI interface with
9717 * number of iocbs per ring and iotags. This function is
9718 * called while driver attach to the HBA and before the
9719 * interrupts are enabled. So there is no need for locking.
9720 *
9721 * This function always returns 0.
9722 **/
dea31012005-04-17 16:05:31 -05009723int
James Smart895427b2017-02-12 13:52:30 -08009724lpfc_sli4_setup(struct lpfc_hba *phba)
9725{
9726 struct lpfc_sli_ring *pring;
9727
9728 pring = phba->sli4_hba.els_wq->pring;
9729 pring->num_mask = LPFC_MAX_RING_MASK;
9730 pring->prt[0].profile = 0; /* Mask 0 */
9731 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
9732 pring->prt[0].type = FC_TYPE_ELS;
9733 pring->prt[0].lpfc_sli_rcv_unsol_event =
9734 lpfc_els_unsol_event;
9735 pring->prt[1].profile = 0; /* Mask 1 */
9736 pring->prt[1].rctl = FC_RCTL_ELS_REP;
9737 pring->prt[1].type = FC_TYPE_ELS;
9738 pring->prt[1].lpfc_sli_rcv_unsol_event =
9739 lpfc_els_unsol_event;
9740 pring->prt[2].profile = 0; /* Mask 2 */
9741 /* NameServer Inquiry */
9742 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
9743 /* NameServer */
9744 pring->prt[2].type = FC_TYPE_CT;
9745 pring->prt[2].lpfc_sli_rcv_unsol_event =
9746 lpfc_ct_unsol_event;
9747 pring->prt[3].profile = 0; /* Mask 3 */
9748 /* NameServer response */
9749 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
9750 /* NameServer */
9751 pring->prt[3].type = FC_TYPE_CT;
9752 pring->prt[3].lpfc_sli_rcv_unsol_event =
9753 lpfc_ct_unsol_event;
9754 return 0;
9755}
9756
9757/**
9758 * lpfc_sli_setup - SLI ring setup function
9759 * @phba: Pointer to HBA context object.
9760 *
9761 * lpfc_sli_setup sets up rings of the SLI interface with
9762 * number of iocbs per ring and iotags. This function is
9763 * called while driver attach to the HBA and before the
9764 * interrupts are enabled. So there is no need for locking.
9765 *
9766 * This function always returns 0. SLI3 only.
9767 **/
9768int
dea31012005-04-17 16:05:31 -05009769lpfc_sli_setup(struct lpfc_hba *phba)
9770{
James Smarted957682007-06-17 19:56:37 -05009771 int i, totiocbsize = 0;
dea31012005-04-17 16:05:31 -05009772 struct lpfc_sli *psli = &phba->sli;
9773 struct lpfc_sli_ring *pring;
9774
James Smart2a76a282012-08-03 12:35:54 -04009775 psli->num_rings = MAX_SLI3_CONFIGURED_RINGS;
dea31012005-04-17 16:05:31 -05009776 psli->sli_flag = 0;
dea31012005-04-17 16:05:31 -05009777
James Bottomley604a3e32005-10-29 10:28:33 -05009778 psli->iocbq_lookup = NULL;
9779 psli->iocbq_lookup_len = 0;
9780 psli->last_iotag = 0;
9781
dea31012005-04-17 16:05:31 -05009782 for (i = 0; i < psli->num_rings; i++) {
James Smart895427b2017-02-12 13:52:30 -08009783 pring = &psli->sli3_ring[i];
dea31012005-04-17 16:05:31 -05009784 switch (i) {
9785 case LPFC_FCP_RING: /* ring 0 - FCP */
9786 /* numCiocb and numRiocb are used in config_port */
James Smart7e56aa22012-08-03 12:35:34 -04009787 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R0_ENTRIES;
9788 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R0_ENTRIES;
9789 pring->sli.sli3.numCiocb +=
9790 SLI2_IOCB_CMD_R1XTRA_ENTRIES;
9791 pring->sli.sli3.numRiocb +=
9792 SLI2_IOCB_RSP_R1XTRA_ENTRIES;
9793 pring->sli.sli3.numCiocb +=
9794 SLI2_IOCB_CMD_R3XTRA_ENTRIES;
9795 pring->sli.sli3.numRiocb +=
9796 SLI2_IOCB_RSP_R3XTRA_ENTRIES;
9797 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
James Smart92d7f7b2007-06-17 19:56:38 -05009798 SLI3_IOCB_CMD_SIZE :
9799 SLI2_IOCB_CMD_SIZE;
James Smart7e56aa22012-08-03 12:35:34 -04009800 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
James Smart92d7f7b2007-06-17 19:56:38 -05009801 SLI3_IOCB_RSP_SIZE :
9802 SLI2_IOCB_RSP_SIZE;
dea31012005-04-17 16:05:31 -05009803 pring->iotag_ctr = 0;
9804 pring->iotag_max =
James Smart92d7f7b2007-06-17 19:56:38 -05009805 (phba->cfg_hba_queue_depth * 2);
dea31012005-04-17 16:05:31 -05009806 pring->fast_iotag = pring->iotag_max;
9807 pring->num_mask = 0;
9808 break;
James Smarta4bc3372006-12-02 13:34:16 -05009809 case LPFC_EXTRA_RING: /* ring 1 - EXTRA */
dea31012005-04-17 16:05:31 -05009810 /* numCiocb and numRiocb are used in config_port */
James Smart7e56aa22012-08-03 12:35:34 -04009811 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R1_ENTRIES;
9812 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R1_ENTRIES;
9813 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
James Smart92d7f7b2007-06-17 19:56:38 -05009814 SLI3_IOCB_CMD_SIZE :
9815 SLI2_IOCB_CMD_SIZE;
James Smart7e56aa22012-08-03 12:35:34 -04009816 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
James Smart92d7f7b2007-06-17 19:56:38 -05009817 SLI3_IOCB_RSP_SIZE :
9818 SLI2_IOCB_RSP_SIZE;
James Smart2e0fef82007-06-17 19:56:36 -05009819 pring->iotag_max = phba->cfg_hba_queue_depth;
dea31012005-04-17 16:05:31 -05009820 pring->num_mask = 0;
9821 break;
9822 case LPFC_ELS_RING: /* ring 2 - ELS / CT */
9823 /* numCiocb and numRiocb are used in config_port */
James Smart7e56aa22012-08-03 12:35:34 -04009824 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R2_ENTRIES;
9825 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R2_ENTRIES;
9826 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
James Smart92d7f7b2007-06-17 19:56:38 -05009827 SLI3_IOCB_CMD_SIZE :
9828 SLI2_IOCB_CMD_SIZE;
James Smart7e56aa22012-08-03 12:35:34 -04009829 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
James Smart92d7f7b2007-06-17 19:56:38 -05009830 SLI3_IOCB_RSP_SIZE :
9831 SLI2_IOCB_RSP_SIZE;
dea31012005-04-17 16:05:31 -05009832 pring->fast_iotag = 0;
9833 pring->iotag_ctr = 0;
9834 pring->iotag_max = 4096;
James Smart57127f12007-10-27 13:37:05 -04009835 pring->lpfc_sli_rcv_async_status =
9836 lpfc_sli_async_event_handler;
James Smart6669f9b2009-10-02 15:16:45 -04009837 pring->num_mask = LPFC_MAX_RING_MASK;
dea31012005-04-17 16:05:31 -05009838 pring->prt[0].profile = 0; /* Mask 0 */
James Smart6a9c52c2009-10-02 15:16:51 -04009839 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
9840 pring->prt[0].type = FC_TYPE_ELS;
dea31012005-04-17 16:05:31 -05009841 pring->prt[0].lpfc_sli_rcv_unsol_event =
James Smart92d7f7b2007-06-17 19:56:38 -05009842 lpfc_els_unsol_event;
dea31012005-04-17 16:05:31 -05009843 pring->prt[1].profile = 0; /* Mask 1 */
James Smart6a9c52c2009-10-02 15:16:51 -04009844 pring->prt[1].rctl = FC_RCTL_ELS_REP;
9845 pring->prt[1].type = FC_TYPE_ELS;
dea31012005-04-17 16:05:31 -05009846 pring->prt[1].lpfc_sli_rcv_unsol_event =
James Smart92d7f7b2007-06-17 19:56:38 -05009847 lpfc_els_unsol_event;
dea31012005-04-17 16:05:31 -05009848 pring->prt[2].profile = 0; /* Mask 2 */
9849 /* NameServer Inquiry */
James Smart6a9c52c2009-10-02 15:16:51 -04009850 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
dea31012005-04-17 16:05:31 -05009851 /* NameServer */
James Smart6a9c52c2009-10-02 15:16:51 -04009852 pring->prt[2].type = FC_TYPE_CT;
dea31012005-04-17 16:05:31 -05009853 pring->prt[2].lpfc_sli_rcv_unsol_event =
James Smart92d7f7b2007-06-17 19:56:38 -05009854 lpfc_ct_unsol_event;
dea31012005-04-17 16:05:31 -05009855 pring->prt[3].profile = 0; /* Mask 3 */
9856 /* NameServer response */
James Smart6a9c52c2009-10-02 15:16:51 -04009857 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
dea31012005-04-17 16:05:31 -05009858 /* NameServer */
James Smart6a9c52c2009-10-02 15:16:51 -04009859 pring->prt[3].type = FC_TYPE_CT;
dea31012005-04-17 16:05:31 -05009860 pring->prt[3].lpfc_sli_rcv_unsol_event =
James Smart92d7f7b2007-06-17 19:56:38 -05009861 lpfc_ct_unsol_event;
dea31012005-04-17 16:05:31 -05009862 break;
9863 }
James Smart7e56aa22012-08-03 12:35:34 -04009864 totiocbsize += (pring->sli.sli3.numCiocb *
9865 pring->sli.sli3.sizeCiocb) +
9866 (pring->sli.sli3.numRiocb * pring->sli.sli3.sizeRiocb);
dea31012005-04-17 16:05:31 -05009867 }
James Smarted957682007-06-17 19:56:37 -05009868 if (totiocbsize > MAX_SLIM_IOCB_SIZE) {
dea31012005-04-17 16:05:31 -05009869 /* Too many cmd / rsp ring entries in SLI2 SLIM */
James Smarte8b62012007-08-02 11:10:09 -04009870 printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in "
9871 "SLI2 SLIM Data: x%x x%lx\n",
9872 phba->brd_no, totiocbsize,
9873 (unsigned long) MAX_SLIM_IOCB_SIZE);
dea31012005-04-17 16:05:31 -05009874 }
Jamie Wellnitzcf5bf972006-02-28 22:33:08 -05009875 if (phba->cfg_multi_ring_support == 2)
9876 lpfc_extra_ring_setup(phba);
dea31012005-04-17 16:05:31 -05009877
9878 return 0;
9879}
9880
James Smarte59058c2008-08-24 21:49:00 -04009881/**
James Smart895427b2017-02-12 13:52:30 -08009882 * lpfc_sli4_queue_init - Queue initialization function
James Smarte59058c2008-08-24 21:49:00 -04009883 * @phba: Pointer to HBA context object.
9884 *
James Smart895427b2017-02-12 13:52:30 -08009885 * lpfc_sli4_queue_init sets up mailbox queues and iocb queues for each
James Smarte59058c2008-08-24 21:49:00 -04009886 * ring. This function also initializes ring indices of each ring.
9887 * This function is called during the initialization of the SLI
9888 * interface of an HBA.
9889 * This function is called with no lock held and always returns
9890 * 1.
9891 **/
James Smart895427b2017-02-12 13:52:30 -08009892void
9893lpfc_sli4_queue_init(struct lpfc_hba *phba)
9894{
9895 struct lpfc_sli *psli;
9896 struct lpfc_sli_ring *pring;
9897 int i;
9898
9899 psli = &phba->sli;
9900 spin_lock_irq(&phba->hbalock);
9901 INIT_LIST_HEAD(&psli->mboxq);
9902 INIT_LIST_HEAD(&psli->mboxq_cmpl);
9903 /* Initialize list headers for txq and txcmplq as double linked lists */
9904 for (i = 0; i < phba->cfg_fcp_io_channel; i++) {
9905 pring = phba->sli4_hba.fcp_wq[i]->pring;
9906 pring->flag = 0;
9907 pring->ringno = LPFC_FCP_RING;
9908 INIT_LIST_HEAD(&pring->txq);
9909 INIT_LIST_HEAD(&pring->txcmplq);
9910 INIT_LIST_HEAD(&pring->iocb_continueq);
9911 spin_lock_init(&pring->ring_lock);
9912 }
9913 for (i = 0; i < phba->cfg_nvme_io_channel; i++) {
9914 pring = phba->sli4_hba.nvme_wq[i]->pring;
9915 pring->flag = 0;
9916 pring->ringno = LPFC_FCP_RING;
9917 INIT_LIST_HEAD(&pring->txq);
9918 INIT_LIST_HEAD(&pring->txcmplq);
9919 INIT_LIST_HEAD(&pring->iocb_continueq);
9920 spin_lock_init(&pring->ring_lock);
9921 }
9922 pring = phba->sli4_hba.els_wq->pring;
9923 pring->flag = 0;
9924 pring->ringno = LPFC_ELS_RING;
9925 INIT_LIST_HEAD(&pring->txq);
9926 INIT_LIST_HEAD(&pring->txcmplq);
9927 INIT_LIST_HEAD(&pring->iocb_continueq);
9928 spin_lock_init(&pring->ring_lock);
9929
9930 if (phba->cfg_nvme_io_channel) {
9931 pring = phba->sli4_hba.nvmels_wq->pring;
9932 pring->flag = 0;
9933 pring->ringno = LPFC_ELS_RING;
9934 INIT_LIST_HEAD(&pring->txq);
9935 INIT_LIST_HEAD(&pring->txcmplq);
9936 INIT_LIST_HEAD(&pring->iocb_continueq);
9937 spin_lock_init(&pring->ring_lock);
9938 }
9939
9940 if (phba->cfg_fof) {
9941 pring = phba->sli4_hba.oas_wq->pring;
9942 pring->flag = 0;
9943 pring->ringno = LPFC_FCP_RING;
9944 INIT_LIST_HEAD(&pring->txq);
9945 INIT_LIST_HEAD(&pring->txcmplq);
9946 INIT_LIST_HEAD(&pring->iocb_continueq);
9947 spin_lock_init(&pring->ring_lock);
9948 }
9949
9950 spin_unlock_irq(&phba->hbalock);
9951}
9952
9953/**
9954 * lpfc_sli_queue_init - Queue initialization function
9955 * @phba: Pointer to HBA context object.
9956 *
9957 * lpfc_sli_queue_init sets up mailbox queues and iocb queues for each
9958 * ring. This function also initializes ring indices of each ring.
9959 * This function is called during the initialization of the SLI
9960 * interface of an HBA.
9961 * This function is called with no lock held and always returns
9962 * 1.
9963 **/
9964void
9965lpfc_sli_queue_init(struct lpfc_hba *phba)
dea31012005-04-17 16:05:31 -05009966{
9967 struct lpfc_sli *psli;
9968 struct lpfc_sli_ring *pring;
James Bottomley604a3e32005-10-29 10:28:33 -05009969 int i;
dea31012005-04-17 16:05:31 -05009970
9971 psli = &phba->sli;
James Smart2e0fef82007-06-17 19:56:36 -05009972 spin_lock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05009973 INIT_LIST_HEAD(&psli->mboxq);
James Smart92d7f7b2007-06-17 19:56:38 -05009974 INIT_LIST_HEAD(&psli->mboxq_cmpl);
dea31012005-04-17 16:05:31 -05009975 /* Initialize list headers for txq and txcmplq as double linked lists */
9976 for (i = 0; i < psli->num_rings; i++) {
James Smart895427b2017-02-12 13:52:30 -08009977 pring = &psli->sli3_ring[i];
dea31012005-04-17 16:05:31 -05009978 pring->ringno = i;
James Smart7e56aa22012-08-03 12:35:34 -04009979 pring->sli.sli3.next_cmdidx = 0;
9980 pring->sli.sli3.local_getidx = 0;
9981 pring->sli.sli3.cmdidx = 0;
dea31012005-04-17 16:05:31 -05009982 INIT_LIST_HEAD(&pring->iocb_continueq);
James Smart9c2face2008-01-11 01:53:18 -05009983 INIT_LIST_HEAD(&pring->iocb_continue_saveq);
dea31012005-04-17 16:05:31 -05009984 INIT_LIST_HEAD(&pring->postbufq);
James Smart895427b2017-02-12 13:52:30 -08009985 pring->flag = 0;
9986 INIT_LIST_HEAD(&pring->txq);
9987 INIT_LIST_HEAD(&pring->txcmplq);
James Smart7e56aa22012-08-03 12:35:34 -04009988 spin_lock_init(&pring->ring_lock);
dea31012005-04-17 16:05:31 -05009989 }
James Smart2e0fef82007-06-17 19:56:36 -05009990 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05009991}
9992
James Smarte59058c2008-08-24 21:49:00 -04009993/**
James Smart04c68492009-05-22 14:52:52 -04009994 * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
9995 * @phba: Pointer to HBA context object.
9996 *
9997 * This routine flushes the mailbox command subsystem. It will unconditionally
9998 * flush all the mailbox commands in the three possible stages in the mailbox
9999 * command sub-system: pending mailbox command queue; the outstanding mailbox
10000 * command; and completed mailbox command queue. It is caller's responsibility
10001 * to make sure that the driver is in the proper state to flush the mailbox
10002 * command sub-system. Namely, the posting of mailbox commands into the
10003 * pending mailbox command queue from the various clients must be stopped;
10004 * either the HBA is in a state that it will never works on the outstanding
10005 * mailbox command (such as in EEH or ERATT conditions) or the outstanding
10006 * mailbox command has been completed.
10007 **/
10008static void
10009lpfc_sli_mbox_sys_flush(struct lpfc_hba *phba)
10010{
10011 LIST_HEAD(completions);
10012 struct lpfc_sli *psli = &phba->sli;
10013 LPFC_MBOXQ_t *pmb;
10014 unsigned long iflag;
10015
10016 /* Flush all the mailbox commands in the mbox system */
10017 spin_lock_irqsave(&phba->hbalock, iflag);
10018 /* The pending mailbox command queue */
10019 list_splice_init(&phba->sli.mboxq, &completions);
10020 /* The outstanding active mailbox command */
10021 if (psli->mbox_active) {
10022 list_add_tail(&psli->mbox_active->list, &completions);
10023 psli->mbox_active = NULL;
10024 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
10025 }
10026 /* The completed mailbox command queue */
10027 list_splice_init(&phba->sli.mboxq_cmpl, &completions);
10028 spin_unlock_irqrestore(&phba->hbalock, iflag);
10029
10030 /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
10031 while (!list_empty(&completions)) {
10032 list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list);
10033 pmb->u.mb.mbxStatus = MBX_NOT_FINISHED;
10034 if (pmb->mbox_cmpl)
10035 pmb->mbox_cmpl(phba, pmb);
10036 }
10037}
10038
10039/**
James Smart3621a712009-04-06 18:47:14 -040010040 * lpfc_sli_host_down - Vport cleanup function
James Smarte59058c2008-08-24 21:49:00 -040010041 * @vport: Pointer to virtual port object.
10042 *
10043 * lpfc_sli_host_down is called to clean up the resources
10044 * associated with a vport before destroying virtual
10045 * port data structures.
10046 * This function does following operations:
10047 * - Free discovery resources associated with this virtual
10048 * port.
10049 * - Free iocbs associated with this virtual port in
10050 * the txq.
10051 * - Send abort for all iocb commands associated with this
10052 * vport in txcmplq.
10053 *
10054 * This function is called with no lock held and always returns 1.
10055 **/
dea31012005-04-17 16:05:31 -050010056int
James Smart92d7f7b2007-06-17 19:56:38 -050010057lpfc_sli_host_down(struct lpfc_vport *vport)
10058{
James Smart858c9f62007-06-17 19:56:39 -050010059 LIST_HEAD(completions);
James Smart92d7f7b2007-06-17 19:56:38 -050010060 struct lpfc_hba *phba = vport->phba;
10061 struct lpfc_sli *psli = &phba->sli;
James Smart895427b2017-02-12 13:52:30 -080010062 struct lpfc_queue *qp = NULL;
James Smart92d7f7b2007-06-17 19:56:38 -050010063 struct lpfc_sli_ring *pring;
10064 struct lpfc_iocbq *iocb, *next_iocb;
James Smart92d7f7b2007-06-17 19:56:38 -050010065 int i;
10066 unsigned long flags = 0;
10067 uint16_t prev_pring_flag;
10068
10069 lpfc_cleanup_discovery_resources(vport);
10070
10071 spin_lock_irqsave(&phba->hbalock, flags);
James Smart92d7f7b2007-06-17 19:56:38 -050010072
James Smart895427b2017-02-12 13:52:30 -080010073 /*
10074 * Error everything on the txq since these iocbs
10075 * have not been given to the FW yet.
10076 * Also issue ABTS for everything on the txcmplq
10077 */
10078 if (phba->sli_rev != LPFC_SLI_REV4) {
10079 for (i = 0; i < psli->num_rings; i++) {
10080 pring = &psli->sli3_ring[i];
10081 prev_pring_flag = pring->flag;
10082 /* Only slow rings */
10083 if (pring->ringno == LPFC_ELS_RING) {
10084 pring->flag |= LPFC_DEFERRED_RING_EVENT;
10085 /* Set the lpfc data pending flag */
10086 set_bit(LPFC_DATA_READY, &phba->data_flags);
10087 }
10088 list_for_each_entry_safe(iocb, next_iocb,
10089 &pring->txq, list) {
10090 if (iocb->vport != vport)
10091 continue;
10092 list_move_tail(&iocb->list, &completions);
10093 }
10094 list_for_each_entry_safe(iocb, next_iocb,
10095 &pring->txcmplq, list) {
10096 if (iocb->vport != vport)
10097 continue;
10098 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
10099 }
10100 pring->flag = prev_pring_flag;
James Smart92d7f7b2007-06-17 19:56:38 -050010101 }
James Smart895427b2017-02-12 13:52:30 -080010102 } else {
10103 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
10104 pring = qp->pring;
10105 if (!pring)
10106 continue;
10107 if (pring == phba->sli4_hba.els_wq->pring) {
10108 pring->flag |= LPFC_DEFERRED_RING_EVENT;
10109 /* Set the lpfc data pending flag */
10110 set_bit(LPFC_DATA_READY, &phba->data_flags);
10111 }
10112 prev_pring_flag = pring->flag;
10113 spin_lock_irq(&pring->ring_lock);
10114 list_for_each_entry_safe(iocb, next_iocb,
10115 &pring->txq, list) {
10116 if (iocb->vport != vport)
10117 continue;
10118 list_move_tail(&iocb->list, &completions);
10119 }
10120 spin_unlock_irq(&pring->ring_lock);
10121 list_for_each_entry_safe(iocb, next_iocb,
10122 &pring->txcmplq, list) {
10123 if (iocb->vport != vport)
10124 continue;
10125 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
10126 }
10127 pring->flag = prev_pring_flag;
10128 }
James Smart92d7f7b2007-06-17 19:56:38 -050010129 }
James Smart92d7f7b2007-06-17 19:56:38 -050010130 spin_unlock_irqrestore(&phba->hbalock, flags);
10131
James Smarta257bf92009-04-06 18:48:10 -040010132 /* Cancel all the IOCBs from the completions list */
10133 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
10134 IOERR_SLI_DOWN);
James Smart92d7f7b2007-06-17 19:56:38 -050010135 return 1;
10136}
10137
James Smarte59058c2008-08-24 21:49:00 -040010138/**
James Smart3621a712009-04-06 18:47:14 -040010139 * lpfc_sli_hba_down - Resource cleanup function for the HBA
James Smarte59058c2008-08-24 21:49:00 -040010140 * @phba: Pointer to HBA context object.
10141 *
10142 * This function cleans up all iocb, buffers, mailbox commands
10143 * while shutting down the HBA. This function is called with no
10144 * lock held and always returns 1.
10145 * This function does the following to cleanup driver resources:
10146 * - Free discovery resources for each virtual port
10147 * - Cleanup any pending fabric iocbs
10148 * - Iterate through the iocb txq and free each entry
10149 * in the list.
10150 * - Free up any buffer posted to the HBA
10151 * - Free mailbox commands in the mailbox queue.
10152 **/
James Smart92d7f7b2007-06-17 19:56:38 -050010153int
James Smart2e0fef82007-06-17 19:56:36 -050010154lpfc_sli_hba_down(struct lpfc_hba *phba)
dea31012005-04-17 16:05:31 -050010155{
James Smart2534ba72007-04-25 09:52:20 -040010156 LIST_HEAD(completions);
James Smart2e0fef82007-06-17 19:56:36 -050010157 struct lpfc_sli *psli = &phba->sli;
James Smart895427b2017-02-12 13:52:30 -080010158 struct lpfc_queue *qp = NULL;
dea31012005-04-17 16:05:31 -050010159 struct lpfc_sli_ring *pring;
James Smart0ff10d42008-01-11 01:52:36 -050010160 struct lpfc_dmabuf *buf_ptr;
dea31012005-04-17 16:05:31 -050010161 unsigned long flags = 0;
James Smart04c68492009-05-22 14:52:52 -040010162 int i;
10163
10164 /* Shutdown the mailbox command sub-system */
James Smart618a5232012-06-12 13:54:36 -040010165 lpfc_sli_mbox_sys_shutdown(phba, LPFC_MBX_WAIT);
dea31012005-04-17 16:05:31 -050010166
dea31012005-04-17 16:05:31 -050010167 lpfc_hba_down_prep(phba);
10168
James Smart92d7f7b2007-06-17 19:56:38 -050010169 lpfc_fabric_abort_hba(phba);
10170
James Smart2e0fef82007-06-17 19:56:36 -050010171 spin_lock_irqsave(&phba->hbalock, flags);
dea31012005-04-17 16:05:31 -050010172
James Smart895427b2017-02-12 13:52:30 -080010173 /*
10174 * Error everything on the txq since these iocbs
10175 * have not been given to the FW yet.
10176 */
10177 if (phba->sli_rev != LPFC_SLI_REV4) {
10178 for (i = 0; i < psli->num_rings; i++) {
10179 pring = &psli->sli3_ring[i];
10180 /* Only slow rings */
10181 if (pring->ringno == LPFC_ELS_RING) {
10182 pring->flag |= LPFC_DEFERRED_RING_EVENT;
10183 /* Set the lpfc data pending flag */
10184 set_bit(LPFC_DATA_READY, &phba->data_flags);
10185 }
10186 list_splice_init(&pring->txq, &completions);
10187 }
10188 } else {
10189 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
10190 pring = qp->pring;
10191 if (!pring)
10192 continue;
10193 spin_lock_irq(&pring->ring_lock);
10194 list_splice_init(&pring->txq, &completions);
10195 spin_unlock_irq(&pring->ring_lock);
10196 if (pring == phba->sli4_hba.els_wq->pring) {
10197 pring->flag |= LPFC_DEFERRED_RING_EVENT;
10198 /* Set the lpfc data pending flag */
10199 set_bit(LPFC_DATA_READY, &phba->data_flags);
10200 }
10201 }
dea31012005-04-17 16:05:31 -050010202 }
James Smart2e0fef82007-06-17 19:56:36 -050010203 spin_unlock_irqrestore(&phba->hbalock, flags);
dea31012005-04-17 16:05:31 -050010204
James Smarta257bf92009-04-06 18:48:10 -040010205 /* Cancel all the IOCBs from the completions list */
10206 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
10207 IOERR_SLI_DOWN);
James Smart2534ba72007-04-25 09:52:20 -040010208
James Smart0ff10d42008-01-11 01:52:36 -050010209 spin_lock_irqsave(&phba->hbalock, flags);
10210 list_splice_init(&phba->elsbuf, &completions);
10211 phba->elsbuf_cnt = 0;
10212 phba->elsbuf_prev_cnt = 0;
10213 spin_unlock_irqrestore(&phba->hbalock, flags);
10214
10215 while (!list_empty(&completions)) {
10216 list_remove_head(&completions, buf_ptr,
10217 struct lpfc_dmabuf, list);
10218 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
10219 kfree(buf_ptr);
10220 }
10221
dea31012005-04-17 16:05:31 -050010222 /* Return any active mbox cmds */
10223 del_timer_sync(&psli->mbox_tmo);
James Smart92d7f7b2007-06-17 19:56:38 -050010224
James Smartda0436e2009-05-22 14:51:39 -040010225 spin_lock_irqsave(&phba->pport->work_port_lock, flags);
James Smart92d7f7b2007-06-17 19:56:38 -050010226 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
James Smartda0436e2009-05-22 14:51:39 -040010227 spin_unlock_irqrestore(&phba->pport->work_port_lock, flags);
James Smart92d7f7b2007-06-17 19:56:38 -050010228
James Smartda0436e2009-05-22 14:51:39 -040010229 return 1;
10230}
James Smart92d7f7b2007-06-17 19:56:38 -050010231
James Smartda0436e2009-05-22 14:51:39 -040010232/**
James Smart3621a712009-04-06 18:47:14 -040010233 * lpfc_sli_pcimem_bcopy - SLI memory copy function
James Smarte59058c2008-08-24 21:49:00 -040010234 * @srcp: Source memory pointer.
10235 * @destp: Destination memory pointer.
10236 * @cnt: Number of words required to be copied.
10237 *
10238 * This function is used for copying data between driver memory
10239 * and the SLI memory. This function also changes the endianness
10240 * of each word if native endianness is different from SLI
10241 * endianness. This function can be called with or without
10242 * lock.
10243 **/
dea31012005-04-17 16:05:31 -050010244void
10245lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
10246{
10247 uint32_t *src = srcp;
10248 uint32_t *dest = destp;
10249 uint32_t ldata;
10250 int i;
10251
10252 for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) {
10253 ldata = *src;
10254 ldata = le32_to_cpu(ldata);
10255 *dest = ldata;
10256 src++;
10257 dest++;
10258 }
10259}
10260
James Smarte59058c2008-08-24 21:49:00 -040010261
10262/**
James Smarta0c87cb2009-07-19 10:01:10 -040010263 * lpfc_sli_bemem_bcopy - SLI memory copy function
10264 * @srcp: Source memory pointer.
10265 * @destp: Destination memory pointer.
10266 * @cnt: Number of words required to be copied.
10267 *
10268 * This function is used for copying data between a data structure
10269 * with big endian representation to local endianness.
10270 * This function can be called with or without lock.
10271 **/
10272void
10273lpfc_sli_bemem_bcopy(void *srcp, void *destp, uint32_t cnt)
10274{
10275 uint32_t *src = srcp;
10276 uint32_t *dest = destp;
10277 uint32_t ldata;
10278 int i;
10279
10280 for (i = 0; i < (int)cnt; i += sizeof(uint32_t)) {
10281 ldata = *src;
10282 ldata = be32_to_cpu(ldata);
10283 *dest = ldata;
10284 src++;
10285 dest++;
10286 }
10287}
10288
10289/**
James Smart3621a712009-04-06 18:47:14 -040010290 * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
James Smarte59058c2008-08-24 21:49:00 -040010291 * @phba: Pointer to HBA context object.
10292 * @pring: Pointer to driver SLI ring object.
10293 * @mp: Pointer to driver buffer object.
10294 *
10295 * This function is called with no lock held.
10296 * It always return zero after adding the buffer to the postbufq
10297 * buffer list.
10298 **/
dea31012005-04-17 16:05:31 -050010299int
James Smart2e0fef82007-06-17 19:56:36 -050010300lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
10301 struct lpfc_dmabuf *mp)
dea31012005-04-17 16:05:31 -050010302{
10303 /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
10304 later */
James Smart2e0fef82007-06-17 19:56:36 -050010305 spin_lock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -050010306 list_add_tail(&mp->list, &pring->postbufq);
dea31012005-04-17 16:05:31 -050010307 pring->postbufq_cnt++;
James Smart2e0fef82007-06-17 19:56:36 -050010308 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -050010309 return 0;
10310}
10311
James Smarte59058c2008-08-24 21:49:00 -040010312/**
James Smart3621a712009-04-06 18:47:14 -040010313 * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
James Smarte59058c2008-08-24 21:49:00 -040010314 * @phba: Pointer to HBA context object.
10315 *
10316 * When HBQ is enabled, buffers are searched based on tags. This function
10317 * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
10318 * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
10319 * does not conflict with tags of buffer posted for unsolicited events.
10320 * The function returns the allocated tag. The function is called with
10321 * no locks held.
10322 **/
James Smart76bb24e2007-10-27 13:38:00 -040010323uint32_t
10324lpfc_sli_get_buffer_tag(struct lpfc_hba *phba)
10325{
10326 spin_lock_irq(&phba->hbalock);
10327 phba->buffer_tag_count++;
10328 /*
10329 * Always set the QUE_BUFTAG_BIT to distiguish between
10330 * a tag assigned by HBQ.
10331 */
10332 phba->buffer_tag_count |= QUE_BUFTAG_BIT;
10333 spin_unlock_irq(&phba->hbalock);
10334 return phba->buffer_tag_count;
10335}
10336
James Smarte59058c2008-08-24 21:49:00 -040010337/**
James Smart3621a712009-04-06 18:47:14 -040010338 * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
James Smarte59058c2008-08-24 21:49:00 -040010339 * @phba: Pointer to HBA context object.
10340 * @pring: Pointer to driver SLI ring object.
10341 * @tag: Buffer tag.
10342 *
10343 * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
10344 * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
10345 * iocb is posted to the response ring with the tag of the buffer.
10346 * This function searches the pring->postbufq list using the tag
10347 * to find buffer associated with CMD_IOCB_RET_XRI64_CX
10348 * iocb. If the buffer is found then lpfc_dmabuf object of the
10349 * buffer is returned to the caller else NULL is returned.
10350 * This function is called with no lock held.
10351 **/
James Smart76bb24e2007-10-27 13:38:00 -040010352struct lpfc_dmabuf *
10353lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
10354 uint32_t tag)
10355{
10356 struct lpfc_dmabuf *mp, *next_mp;
10357 struct list_head *slp = &pring->postbufq;
10358
Lucas De Marchi25985ed2011-03-30 22:57:33 -030010359 /* Search postbufq, from the beginning, looking for a match on tag */
James Smart76bb24e2007-10-27 13:38:00 -040010360 spin_lock_irq(&phba->hbalock);
10361 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
10362 if (mp->buffer_tag == tag) {
10363 list_del_init(&mp->list);
10364 pring->postbufq_cnt--;
10365 spin_unlock_irq(&phba->hbalock);
10366 return mp;
10367 }
10368 }
10369
10370 spin_unlock_irq(&phba->hbalock);
10371 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smartd7c255b2008-08-24 21:50:00 -040010372 "0402 Cannot find virtual addr for buffer tag on "
James Smart76bb24e2007-10-27 13:38:00 -040010373 "ring %d Data x%lx x%p x%p x%x\n",
10374 pring->ringno, (unsigned long) tag,
10375 slp->next, slp->prev, pring->postbufq_cnt);
10376
10377 return NULL;
10378}
dea31012005-04-17 16:05:31 -050010379
James Smarte59058c2008-08-24 21:49:00 -040010380/**
James Smart3621a712009-04-06 18:47:14 -040010381 * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
James Smarte59058c2008-08-24 21:49:00 -040010382 * @phba: Pointer to HBA context object.
10383 * @pring: Pointer to driver SLI ring object.
10384 * @phys: DMA address of the buffer.
10385 *
10386 * This function searches the buffer list using the dma_address
10387 * of unsolicited event to find the driver's lpfc_dmabuf object
10388 * corresponding to the dma_address. The function returns the
10389 * lpfc_dmabuf object if a buffer is found else it returns NULL.
10390 * This function is called by the ct and els unsolicited event
10391 * handlers to get the buffer associated with the unsolicited
10392 * event.
10393 *
10394 * This function is called with no lock held.
10395 **/
dea31012005-04-17 16:05:31 -050010396struct lpfc_dmabuf *
10397lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
10398 dma_addr_t phys)
10399{
10400 struct lpfc_dmabuf *mp, *next_mp;
10401 struct list_head *slp = &pring->postbufq;
10402
Lucas De Marchi25985ed2011-03-30 22:57:33 -030010403 /* Search postbufq, from the beginning, looking for a match on phys */
James Smart2e0fef82007-06-17 19:56:36 -050010404 spin_lock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -050010405 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
10406 if (mp->phys == phys) {
10407 list_del_init(&mp->list);
10408 pring->postbufq_cnt--;
James Smart2e0fef82007-06-17 19:56:36 -050010409 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -050010410 return mp;
10411 }
10412 }
10413
James Smart2e0fef82007-06-17 19:56:36 -050010414 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -050010415 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -040010416 "0410 Cannot find virtual addr for mapped buf on "
dea31012005-04-17 16:05:31 -050010417 "ring %d Data x%llx x%p x%p x%x\n",
James Smarte8b62012007-08-02 11:10:09 -040010418 pring->ringno, (unsigned long long)phys,
dea31012005-04-17 16:05:31 -050010419 slp->next, slp->prev, pring->postbufq_cnt);
10420 return NULL;
10421}
10422
James Smarte59058c2008-08-24 21:49:00 -040010423/**
James Smart3621a712009-04-06 18:47:14 -040010424 * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
James Smarte59058c2008-08-24 21:49:00 -040010425 * @phba: Pointer to HBA context object.
10426 * @cmdiocb: Pointer to driver command iocb object.
10427 * @rspiocb: Pointer to driver response iocb object.
10428 *
10429 * This function is the completion handler for the abort iocbs for
10430 * ELS commands. This function is called from the ELS ring event
10431 * handler with no lock held. This function frees memory resources
10432 * associated with the abort iocb.
10433 **/
dea31012005-04-17 16:05:31 -050010434static void
James Smart2e0fef82007-06-17 19:56:36 -050010435lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
10436 struct lpfc_iocbq *rspiocb)
dea31012005-04-17 16:05:31 -050010437{
James Smart2e0fef82007-06-17 19:56:36 -050010438 IOCB_t *irsp = &rspiocb->iocb;
James Smart2680eea2007-04-25 09:52:55 -040010439 uint16_t abort_iotag, abort_context;
James Smartff78d8f2011-12-13 13:21:35 -050010440 struct lpfc_iocbq *abort_iocb = NULL;
James Smart2680eea2007-04-25 09:52:55 -040010441
10442 if (irsp->ulpStatus) {
James Smartff78d8f2011-12-13 13:21:35 -050010443
10444 /*
10445 * Assume that the port already completed and returned, or
10446 * will return the iocb. Just Log the message.
10447 */
James Smart2680eea2007-04-25 09:52:55 -040010448 abort_context = cmdiocb->iocb.un.acxri.abortContextTag;
10449 abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag;
10450
James Smart2e0fef82007-06-17 19:56:36 -050010451 spin_lock_irq(&phba->hbalock);
James Smart45ed1192009-10-02 15:17:02 -040010452 if (phba->sli_rev < LPFC_SLI_REV4) {
10453 if (abort_iotag != 0 &&
10454 abort_iotag <= phba->sli.last_iotag)
10455 abort_iocb =
10456 phba->sli.iocbq_lookup[abort_iotag];
10457 } else
10458 /* For sli4 the abort_tag is the XRI,
10459 * so the abort routine puts the iotag of the iocb
10460 * being aborted in the context field of the abort
10461 * IOCB.
10462 */
10463 abort_iocb = phba->sli.iocbq_lookup[abort_context];
James Smart2680eea2007-04-25 09:52:55 -040010464
James Smart2a9bf3d2010-06-07 15:24:45 -040010465 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_SLI,
10466 "0327 Cannot abort els iocb %p "
10467 "with tag %x context %x, abort status %x, "
10468 "abort code %x\n",
10469 abort_iocb, abort_iotag, abort_context,
10470 irsp->ulpStatus, irsp->un.ulpWord[4]);
James Smart2680eea2007-04-25 09:52:55 -040010471
James Smartff78d8f2011-12-13 13:21:35 -050010472 spin_unlock_irq(&phba->hbalock);
James Smart2680eea2007-04-25 09:52:55 -040010473 }
James Bottomley604a3e32005-10-29 10:28:33 -050010474 lpfc_sli_release_iocbq(phba, cmdiocb);
dea31012005-04-17 16:05:31 -050010475 return;
10476}
10477
James Smarte59058c2008-08-24 21:49:00 -040010478/**
James Smart3621a712009-04-06 18:47:14 -040010479 * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
James Smarte59058c2008-08-24 21:49:00 -040010480 * @phba: Pointer to HBA context object.
10481 * @cmdiocb: Pointer to driver command iocb object.
10482 * @rspiocb: Pointer to driver response iocb object.
10483 *
10484 * The function is called from SLI ring event handler with no
10485 * lock held. This function is the completion handler for ELS commands
10486 * which are aborted. The function frees memory resources used for
10487 * the aborted ELS commands.
10488 **/
James Smart92d7f7b2007-06-17 19:56:38 -050010489static void
10490lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
10491 struct lpfc_iocbq *rspiocb)
10492{
10493 IOCB_t *irsp = &rspiocb->iocb;
10494
10495 /* ELS cmd tag <ulpIoTag> completes */
10496 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
James Smartd7c255b2008-08-24 21:50:00 -040010497 "0139 Ignoring ELS cmd tag x%x completion Data: "
James Smart92d7f7b2007-06-17 19:56:38 -050010498 "x%x x%x x%x\n",
James Smarte8b62012007-08-02 11:10:09 -040010499 irsp->ulpIoTag, irsp->ulpStatus,
James Smart92d7f7b2007-06-17 19:56:38 -050010500 irsp->un.ulpWord[4], irsp->ulpTimeout);
James Smart858c9f62007-06-17 19:56:39 -050010501 if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR)
10502 lpfc_ct_free_iocb(phba, cmdiocb);
10503 else
10504 lpfc_els_free_iocb(phba, cmdiocb);
James Smart92d7f7b2007-06-17 19:56:38 -050010505 return;
10506}
10507
James Smarte59058c2008-08-24 21:49:00 -040010508/**
James Smart5af5eee2010-10-22 11:06:38 -040010509 * lpfc_sli_abort_iotag_issue - Issue abort for a command iocb
James Smarte59058c2008-08-24 21:49:00 -040010510 * @phba: Pointer to HBA context object.
10511 * @pring: Pointer to driver SLI ring object.
10512 * @cmdiocb: Pointer to driver command iocb object.
10513 *
James Smart5af5eee2010-10-22 11:06:38 -040010514 * This function issues an abort iocb for the provided command iocb down to
10515 * the port. Other than the case the outstanding command iocb is an abort
10516 * request, this function issues abort out unconditionally. This function is
10517 * called with hbalock held. The function returns 0 when it fails due to
10518 * memory allocation failure or when the command iocb is an abort request.
James Smarte59058c2008-08-24 21:49:00 -040010519 **/
James Smart5af5eee2010-10-22 11:06:38 -040010520static int
10521lpfc_sli_abort_iotag_issue(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
James Smart2e0fef82007-06-17 19:56:36 -050010522 struct lpfc_iocbq *cmdiocb)
dea31012005-04-17 16:05:31 -050010523{
James Smart2e0fef82007-06-17 19:56:36 -050010524 struct lpfc_vport *vport = cmdiocb->vport;
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -040010525 struct lpfc_iocbq *abtsiocbp;
dea31012005-04-17 16:05:31 -050010526 IOCB_t *icmd = NULL;
10527 IOCB_t *iabt = NULL;
James Smart5af5eee2010-10-22 11:06:38 -040010528 int retval;
James Smart7e56aa22012-08-03 12:35:34 -040010529 unsigned long iflags;
James Smart07951072007-04-25 09:51:38 -040010530
Johannes Thumshirn1c2ba472016-01-20 16:22:22 +010010531 lockdep_assert_held(&phba->hbalock);
10532
James Smart92d7f7b2007-06-17 19:56:38 -050010533 /*
10534 * There are certain command types we don't want to abort. And we
10535 * don't want to abort commands that are already in the process of
10536 * being aborted.
James Smart07951072007-04-25 09:51:38 -040010537 */
10538 icmd = &cmdiocb->iocb;
James Smart2e0fef82007-06-17 19:56:36 -050010539 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
James Smart92d7f7b2007-06-17 19:56:38 -050010540 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
10541 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
James Smart07951072007-04-25 09:51:38 -040010542 return 0;
10543
dea31012005-04-17 16:05:31 -050010544 /* issue ABTS for this IOCB based on iotag */
James Smart92d7f7b2007-06-17 19:56:38 -050010545 abtsiocbp = __lpfc_sli_get_iocbq(phba);
dea31012005-04-17 16:05:31 -050010546 if (abtsiocbp == NULL)
10547 return 0;
dea31012005-04-17 16:05:31 -050010548
James Smart07951072007-04-25 09:51:38 -040010549 /* This signals the response to set the correct status
James Smart341af102010-01-26 23:07:37 -050010550 * before calling the completion handler
James Smart07951072007-04-25 09:51:38 -040010551 */
10552 cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
10553
dea31012005-04-17 16:05:31 -050010554 iabt = &abtsiocbp->iocb;
James Smart07951072007-04-25 09:51:38 -040010555 iabt->un.acxri.abortType = ABORT_TYPE_ABTS;
10556 iabt->un.acxri.abortContextTag = icmd->ulpContext;
James Smart45ed1192009-10-02 15:17:02 -040010557 if (phba->sli_rev == LPFC_SLI_REV4) {
James Smartda0436e2009-05-22 14:51:39 -040010558 iabt->un.acxri.abortIoTag = cmdiocb->sli4_xritag;
James Smart45ed1192009-10-02 15:17:02 -040010559 iabt->un.acxri.abortContextTag = cmdiocb->iotag;
10560 }
James Smartda0436e2009-05-22 14:51:39 -040010561 else
10562 iabt->un.acxri.abortIoTag = icmd->ulpIoTag;
dea31012005-04-17 16:05:31 -050010563 iabt->ulpLe = 1;
James Smart07951072007-04-25 09:51:38 -040010564 iabt->ulpClass = icmd->ulpClass;
dea31012005-04-17 16:05:31 -050010565
James Smart5ffc2662009-11-18 15:39:44 -050010566 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
James Smart895427b2017-02-12 13:52:30 -080010567 abtsiocbp->hba_wqidx = cmdiocb->hba_wqidx;
James Smart341af102010-01-26 23:07:37 -050010568 if (cmdiocb->iocb_flag & LPFC_IO_FCP)
10569 abtsiocbp->iocb_flag |= LPFC_USE_FCPWQIDX;
James Smart9bd2bff52014-09-03 12:57:30 -040010570 if (cmdiocb->iocb_flag & LPFC_IO_FOF)
10571 abtsiocbp->iocb_flag |= LPFC_IO_FOF;
James Smart5ffc2662009-11-18 15:39:44 -050010572
James Smart2e0fef82007-06-17 19:56:36 -050010573 if (phba->link_state >= LPFC_LINK_UP)
James Smart07951072007-04-25 09:51:38 -040010574 iabt->ulpCommand = CMD_ABORT_XRI_CN;
10575 else
10576 iabt->ulpCommand = CMD_CLOSE_XRI_CN;
10577
10578 abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl;
James Smarte6c6acc2016-12-19 15:07:23 -080010579 abtsiocbp->vport = vport;
James Smart5b8bd0c2007-04-25 09:52:49 -040010580
James Smarte8b62012007-08-02 11:10:09 -040010581 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
10582 "0339 Abort xri x%x, original iotag x%x, "
10583 "abort cmd iotag x%x\n",
James Smart2a9bf3d2010-06-07 15:24:45 -040010584 iabt->un.acxri.abortIoTag,
James Smarte8b62012007-08-02 11:10:09 -040010585 iabt->un.acxri.abortContextTag,
James Smart2a9bf3d2010-06-07 15:24:45 -040010586 abtsiocbp->iotag);
James Smart7e56aa22012-08-03 12:35:34 -040010587
10588 if (phba->sli_rev == LPFC_SLI_REV4) {
James Smart895427b2017-02-12 13:52:30 -080010589 pring = lpfc_sli4_calc_ring(phba, abtsiocbp);
10590 if (unlikely(pring == NULL))
James Smart9bd2bff52014-09-03 12:57:30 -040010591 return 0;
James Smart7e56aa22012-08-03 12:35:34 -040010592 /* Note: both hbalock and ring_lock need to be set here */
10593 spin_lock_irqsave(&pring->ring_lock, iflags);
10594 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
10595 abtsiocbp, 0);
10596 spin_unlock_irqrestore(&pring->ring_lock, iflags);
10597 } else {
10598 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
10599 abtsiocbp, 0);
10600 }
James Smart07951072007-04-25 09:51:38 -040010601
James Smartd7c255b2008-08-24 21:50:00 -040010602 if (retval)
10603 __lpfc_sli_release_iocbq(phba, abtsiocbp);
James Smart5af5eee2010-10-22 11:06:38 -040010604
10605 /*
10606 * Caller to this routine should check for IOCB_ERROR
10607 * and handle it properly. This routine no longer removes
10608 * iocb off txcmplq and call compl in case of IOCB_ERROR.
10609 */
10610 return retval;
10611}
10612
10613/**
10614 * lpfc_sli_issue_abort_iotag - Abort function for a command iocb
10615 * @phba: Pointer to HBA context object.
10616 * @pring: Pointer to driver SLI ring object.
10617 * @cmdiocb: Pointer to driver command iocb object.
10618 *
10619 * This function issues an abort iocb for the provided command iocb. In case
10620 * of unloading, the abort iocb will not be issued to commands on the ELS
10621 * ring. Instead, the callback function shall be changed to those commands
10622 * so that nothing happens when them finishes. This function is called with
10623 * hbalock held. The function returns 0 when the command iocb is an abort
10624 * request.
10625 **/
10626int
10627lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
10628 struct lpfc_iocbq *cmdiocb)
10629{
10630 struct lpfc_vport *vport = cmdiocb->vport;
10631 int retval = IOCB_ERROR;
10632 IOCB_t *icmd = NULL;
10633
Johannes Thumshirn1c2ba472016-01-20 16:22:22 +010010634 lockdep_assert_held(&phba->hbalock);
10635
James Smart5af5eee2010-10-22 11:06:38 -040010636 /*
10637 * There are certain command types we don't want to abort. And we
10638 * don't want to abort commands that are already in the process of
10639 * being aborted.
10640 */
10641 icmd = &cmdiocb->iocb;
10642 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
10643 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
10644 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
10645 return 0;
10646
Dick Kennedy27b13132017-09-29 17:34:29 -070010647 if (!pring) {
10648 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
10649 cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
10650 else
10651 cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
10652 goto abort_iotag_exit;
10653 }
10654
James Smart5af5eee2010-10-22 11:06:38 -040010655 /*
10656 * If we're unloading, don't abort iocb on the ELS ring, but change
10657 * the callback so that nothing happens when it finishes.
10658 */
10659 if ((vport->load_flag & FC_UNLOADING) &&
10660 (pring->ringno == LPFC_ELS_RING)) {
10661 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
10662 cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
10663 else
10664 cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
10665 goto abort_iotag_exit;
10666 }
10667
10668 /* Now, we try to issue the abort to the cmdiocb out */
10669 retval = lpfc_sli_abort_iotag_issue(phba, pring, cmdiocb);
10670
James Smart07951072007-04-25 09:51:38 -040010671abort_iotag_exit:
James Smart2e0fef82007-06-17 19:56:36 -050010672 /*
10673 * Caller to this routine should check for IOCB_ERROR
10674 * and handle it properly. This routine no longer removes
10675 * iocb off txcmplq and call compl in case of IOCB_ERROR.
James Smart07951072007-04-25 09:51:38 -040010676 */
James Smart2e0fef82007-06-17 19:56:36 -050010677 return retval;
dea31012005-04-17 16:05:31 -050010678}
10679
James Smarte59058c2008-08-24 21:49:00 -040010680/**
James Smart895427b2017-02-12 13:52:30 -080010681 * lpfc_sli4_abort_nvme_io - Issue abort for a command iocb
10682 * @phba: Pointer to HBA context object.
10683 * @pring: Pointer to driver SLI ring object.
10684 * @cmdiocb: Pointer to driver command iocb object.
10685 *
10686 * This function issues an abort iocb for the provided command iocb down to
10687 * the port. Other than the case the outstanding command iocb is an abort
10688 * request, this function issues abort out unconditionally. This function is
10689 * called with hbalock held. The function returns 0 when it fails due to
10690 * memory allocation failure or when the command iocb is an abort request.
10691 **/
10692static int
10693lpfc_sli4_abort_nvme_io(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
10694 struct lpfc_iocbq *cmdiocb)
10695{
10696 struct lpfc_vport *vport = cmdiocb->vport;
10697 struct lpfc_iocbq *abtsiocbp;
10698 union lpfc_wqe *abts_wqe;
10699 int retval;
10700
10701 /*
10702 * There are certain command types we don't want to abort. And we
10703 * don't want to abort commands that are already in the process of
10704 * being aborted.
10705 */
10706 if (cmdiocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
10707 cmdiocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN ||
10708 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
10709 return 0;
10710
10711 /* issue ABTS for this io based on iotag */
10712 abtsiocbp = __lpfc_sli_get_iocbq(phba);
10713 if (abtsiocbp == NULL)
10714 return 0;
10715
10716 /* This signals the response to set the correct status
10717 * before calling the completion handler
10718 */
10719 cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
10720
10721 /* Complete prepping the abort wqe and issue to the FW. */
10722 abts_wqe = &abtsiocbp->wqe;
10723 bf_set(abort_cmd_ia, &abts_wqe->abort_cmd, 0);
10724 bf_set(abort_cmd_criteria, &abts_wqe->abort_cmd, T_XRI_TAG);
10725
10726 /* Explicitly set reserved fields to zero.*/
10727 abts_wqe->abort_cmd.rsrvd4 = 0;
10728 abts_wqe->abort_cmd.rsrvd5 = 0;
10729
10730 /* WQE Common - word 6. Context is XRI tag. Set 0. */
10731 bf_set(wqe_xri_tag, &abts_wqe->abort_cmd.wqe_com, 0);
10732 bf_set(wqe_ctxt_tag, &abts_wqe->abort_cmd.wqe_com, 0);
10733
10734 /* word 7 */
10735 bf_set(wqe_ct, &abts_wqe->abort_cmd.wqe_com, 0);
10736 bf_set(wqe_cmnd, &abts_wqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX);
10737 bf_set(wqe_class, &abts_wqe->abort_cmd.wqe_com,
10738 cmdiocb->iocb.ulpClass);
10739
10740 /* word 8 - tell the FW to abort the IO associated with this
10741 * outstanding exchange ID.
10742 */
10743 abts_wqe->abort_cmd.wqe_com.abort_tag = cmdiocb->sli4_xritag;
10744
10745 /* word 9 - this is the iotag for the abts_wqe completion. */
10746 bf_set(wqe_reqtag, &abts_wqe->abort_cmd.wqe_com,
10747 abtsiocbp->iotag);
10748
10749 /* word 10 */
10750 bf_set(wqe_wqid, &abts_wqe->abort_cmd.wqe_com, cmdiocb->hba_wqidx);
10751 bf_set(wqe_qosd, &abts_wqe->abort_cmd.wqe_com, 1);
10752 bf_set(wqe_lenloc, &abts_wqe->abort_cmd.wqe_com, LPFC_WQE_LENLOC_NONE);
10753
10754 /* word 11 */
10755 bf_set(wqe_cmd_type, &abts_wqe->abort_cmd.wqe_com, OTHER_COMMAND);
10756 bf_set(wqe_wqec, &abts_wqe->abort_cmd.wqe_com, 1);
10757 bf_set(wqe_cqid, &abts_wqe->abort_cmd.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
10758
10759 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
10760 abtsiocbp->iocb_flag |= LPFC_IO_NVME;
10761 abtsiocbp->vport = vport;
James Smart01649562017-02-12 13:52:32 -080010762 abtsiocbp->wqe_cmpl = lpfc_nvme_abort_fcreq_cmpl;
James Smart895427b2017-02-12 13:52:30 -080010763 retval = lpfc_sli4_issue_wqe(phba, LPFC_FCP_RING, abtsiocbp);
Dick Kennedycd22d602017-08-23 16:55:35 -070010764 if (retval) {
James Smart895427b2017-02-12 13:52:30 -080010765 lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME,
10766 "6147 Failed abts issue_wqe with status x%x "
10767 "for oxid x%x\n",
10768 retval, cmdiocb->sli4_xritag);
10769 lpfc_sli_release_iocbq(phba, abtsiocbp);
10770 return retval;
10771 }
10772
10773 lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME,
10774 "6148 Drv Abort NVME Request Issued for "
10775 "ox_id x%x on reqtag x%x\n",
10776 cmdiocb->sli4_xritag,
10777 abtsiocbp->iotag);
10778
10779 return retval;
10780}
10781
10782/**
James Smart5af5eee2010-10-22 11:06:38 -040010783 * lpfc_sli_hba_iocb_abort - Abort all iocbs to an hba.
10784 * @phba: pointer to lpfc HBA data structure.
10785 *
10786 * This routine will abort all pending and outstanding iocbs to an HBA.
10787 **/
10788void
10789lpfc_sli_hba_iocb_abort(struct lpfc_hba *phba)
10790{
10791 struct lpfc_sli *psli = &phba->sli;
10792 struct lpfc_sli_ring *pring;
James Smart895427b2017-02-12 13:52:30 -080010793 struct lpfc_queue *qp = NULL;
James Smart5af5eee2010-10-22 11:06:38 -040010794 int i;
10795
James Smart895427b2017-02-12 13:52:30 -080010796 if (phba->sli_rev != LPFC_SLI_REV4) {
10797 for (i = 0; i < psli->num_rings; i++) {
10798 pring = &psli->sli3_ring[i];
10799 lpfc_sli_abort_iocb_ring(phba, pring);
10800 }
10801 return;
10802 }
10803 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
10804 pring = qp->pring;
10805 if (!pring)
10806 continue;
James Smartdb55fba2014-04-04 13:52:02 -040010807 lpfc_sli_abort_iocb_ring(phba, pring);
James Smart5af5eee2010-10-22 11:06:38 -040010808 }
10809}
10810
10811/**
James Smart3621a712009-04-06 18:47:14 -040010812 * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN
James Smarte59058c2008-08-24 21:49:00 -040010813 * @iocbq: Pointer to driver iocb object.
10814 * @vport: Pointer to driver virtual port object.
10815 * @tgt_id: SCSI ID of the target.
10816 * @lun_id: LUN ID of the scsi device.
10817 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
10818 *
James Smart3621a712009-04-06 18:47:14 -040010819 * This function acts as an iocb filter for functions which abort or count
James Smarte59058c2008-08-24 21:49:00 -040010820 * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
10821 * 0 if the filtering criteria is met for the given iocb and will return
10822 * 1 if the filtering criteria is not met.
10823 * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
10824 * given iocb is for the SCSI device specified by vport, tgt_id and
10825 * lun_id parameter.
10826 * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
10827 * given iocb is for the SCSI target specified by vport and tgt_id
10828 * parameters.
10829 * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
10830 * given iocb is for the SCSI host associated with the given vport.
10831 * This function is called with no locks held.
10832 **/
dea31012005-04-17 16:05:31 -050010833static int
James Smart51ef4c22007-08-02 11:10:31 -040010834lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport,
10835 uint16_t tgt_id, uint64_t lun_id,
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -040010836 lpfc_ctx_cmd ctx_cmd)
dea31012005-04-17 16:05:31 -050010837{
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -040010838 struct lpfc_scsi_buf *lpfc_cmd;
dea31012005-04-17 16:05:31 -050010839 int rc = 1;
10840
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -040010841 if (!(iocbq->iocb_flag & LPFC_IO_FCP))
10842 return rc;
10843
James Smart51ef4c22007-08-02 11:10:31 -040010844 if (iocbq->vport != vport)
10845 return rc;
10846
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -040010847 lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -040010848
James Smart495a7142008-06-14 22:52:59 -040010849 if (lpfc_cmd->pCmd == NULL)
dea31012005-04-17 16:05:31 -050010850 return rc;
10851
10852 switch (ctx_cmd) {
10853 case LPFC_CTX_LUN:
James Smart495a7142008-06-14 22:52:59 -040010854 if ((lpfc_cmd->rdata->pnode) &&
10855 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) &&
10856 (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id))
dea31012005-04-17 16:05:31 -050010857 rc = 0;
10858 break;
10859 case LPFC_CTX_TGT:
James Smart495a7142008-06-14 22:52:59 -040010860 if ((lpfc_cmd->rdata->pnode) &&
10861 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id))
dea31012005-04-17 16:05:31 -050010862 rc = 0;
10863 break;
dea31012005-04-17 16:05:31 -050010864 case LPFC_CTX_HOST:
10865 rc = 0;
10866 break;
10867 default:
10868 printk(KERN_ERR "%s: Unknown context cmd type, value %d\n",
Harvey Harrisoncadbd4a2008-07-03 23:47:27 -070010869 __func__, ctx_cmd);
dea31012005-04-17 16:05:31 -050010870 break;
10871 }
10872
10873 return rc;
10874}
10875
James Smarte59058c2008-08-24 21:49:00 -040010876/**
James Smart3621a712009-04-06 18:47:14 -040010877 * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
James Smarte59058c2008-08-24 21:49:00 -040010878 * @vport: Pointer to virtual port.
10879 * @tgt_id: SCSI ID of the target.
10880 * @lun_id: LUN ID of the scsi device.
10881 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
10882 *
10883 * This function returns number of FCP commands pending for the vport.
10884 * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
10885 * commands pending on the vport associated with SCSI device specified
10886 * by tgt_id and lun_id parameters.
10887 * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
10888 * commands pending on the vport associated with SCSI target specified
10889 * by tgt_id parameter.
10890 * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
10891 * commands pending on the vport.
10892 * This function returns the number of iocbs which satisfy the filter.
10893 * This function is called without any lock held.
10894 **/
dea31012005-04-17 16:05:31 -050010895int
James Smart51ef4c22007-08-02 11:10:31 -040010896lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id,
10897 lpfc_ctx_cmd ctx_cmd)
dea31012005-04-17 16:05:31 -050010898{
James Smart51ef4c22007-08-02 11:10:31 -040010899 struct lpfc_hba *phba = vport->phba;
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -040010900 struct lpfc_iocbq *iocbq;
10901 int sum, i;
dea31012005-04-17 16:05:31 -050010902
Johannes Thumshirn31979002016-07-18 16:06:03 +020010903 spin_lock_irq(&phba->hbalock);
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -040010904 for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) {
10905 iocbq = phba->sli.iocbq_lookup[i];
dea31012005-04-17 16:05:31 -050010906
James Smart51ef4c22007-08-02 11:10:31 -040010907 if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id,
10908 ctx_cmd) == 0)
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -040010909 sum++;
dea31012005-04-17 16:05:31 -050010910 }
Johannes Thumshirn31979002016-07-18 16:06:03 +020010911 spin_unlock_irq(&phba->hbalock);
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -040010912
dea31012005-04-17 16:05:31 -050010913 return sum;
10914}
10915
James Smarte59058c2008-08-24 21:49:00 -040010916/**
James Smart3621a712009-04-06 18:47:14 -040010917 * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
James Smarte59058c2008-08-24 21:49:00 -040010918 * @phba: Pointer to HBA context object
10919 * @cmdiocb: Pointer to command iocb object.
10920 * @rspiocb: Pointer to response iocb object.
10921 *
10922 * This function is called when an aborted FCP iocb completes. This
10923 * function is called by the ring event handler with no lock held.
10924 * This function frees the iocb.
10925 **/
James.Smart@Emulex.Com5eb95af2005-06-25 10:34:30 -040010926void
James Smart2e0fef82007-06-17 19:56:36 -050010927lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
10928 struct lpfc_iocbq *rspiocb)
James.Smart@Emulex.Com5eb95af2005-06-25 10:34:30 -040010929{
James Smartcb69f7d2011-12-13 13:21:57 -050010930 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smart8e668af2013-05-31 17:04:28 -040010931 "3096 ABORT_XRI_CN completing on rpi x%x "
James Smartcb69f7d2011-12-13 13:21:57 -050010932 "original iotag x%x, abort cmd iotag x%x "
10933 "status 0x%x, reason 0x%x\n",
10934 cmdiocb->iocb.un.acxri.abortContextTag,
10935 cmdiocb->iocb.un.acxri.abortIoTag,
10936 cmdiocb->iotag, rspiocb->iocb.ulpStatus,
10937 rspiocb->iocb.un.ulpWord[4]);
James Bottomley604a3e32005-10-29 10:28:33 -050010938 lpfc_sli_release_iocbq(phba, cmdiocb);
James.Smart@Emulex.Com5eb95af2005-06-25 10:34:30 -040010939 return;
10940}
10941
James Smarte59058c2008-08-24 21:49:00 -040010942/**
James Smart3621a712009-04-06 18:47:14 -040010943 * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
James Smarte59058c2008-08-24 21:49:00 -040010944 * @vport: Pointer to virtual port.
10945 * @pring: Pointer to driver SLI ring object.
10946 * @tgt_id: SCSI ID of the target.
10947 * @lun_id: LUN ID of the scsi device.
10948 * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
10949 *
10950 * This function sends an abort command for every SCSI command
10951 * associated with the given virtual port pending on the ring
10952 * filtered by lpfc_sli_validate_fcp_iocb function.
10953 * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
10954 * FCP iocbs associated with lun specified by tgt_id and lun_id
10955 * parameters
10956 * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
10957 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
10958 * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
10959 * FCP iocbs associated with virtual port.
10960 * This function returns number of iocbs it failed to abort.
10961 * This function is called with no locks held.
10962 **/
dea31012005-04-17 16:05:31 -050010963int
James Smart51ef4c22007-08-02 11:10:31 -040010964lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
10965 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd)
dea31012005-04-17 16:05:31 -050010966{
James Smart51ef4c22007-08-02 11:10:31 -040010967 struct lpfc_hba *phba = vport->phba;
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -040010968 struct lpfc_iocbq *iocbq;
10969 struct lpfc_iocbq *abtsiocb;
James Smartecbb2272017-06-01 21:07:04 -070010970 struct lpfc_sli_ring *pring_s4;
dea31012005-04-17 16:05:31 -050010971 IOCB_t *cmd = NULL;
dea31012005-04-17 16:05:31 -050010972 int errcnt = 0, ret_val = 0;
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -040010973 int i;
dea31012005-04-17 16:05:31 -050010974
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -040010975 for (i = 1; i <= phba->sli.last_iotag; i++) {
10976 iocbq = phba->sli.iocbq_lookup[i];
dea31012005-04-17 16:05:31 -050010977
James Smart51ef4c22007-08-02 11:10:31 -040010978 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
James Smart2e0fef82007-06-17 19:56:36 -050010979 abort_cmd) != 0)
dea31012005-04-17 16:05:31 -050010980 continue;
10981
James Smartafbd8d82013-09-06 12:22:13 -040010982 /*
10983 * If the iocbq is already being aborted, don't take a second
10984 * action, but do count it.
10985 */
10986 if (iocbq->iocb_flag & LPFC_DRIVER_ABORTED)
10987 continue;
10988
dea31012005-04-17 16:05:31 -050010989 /* issue ABTS for this IOCB based on iotag */
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -040010990 abtsiocb = lpfc_sli_get_iocbq(phba);
dea31012005-04-17 16:05:31 -050010991 if (abtsiocb == NULL) {
10992 errcnt++;
10993 continue;
10994 }
dea31012005-04-17 16:05:31 -050010995
James Smartafbd8d82013-09-06 12:22:13 -040010996 /* indicate the IO is being aborted by the driver. */
10997 iocbq->iocb_flag |= LPFC_DRIVER_ABORTED;
10998
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -040010999 cmd = &iocbq->iocb;
dea31012005-04-17 16:05:31 -050011000 abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
11001 abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext;
James Smartda0436e2009-05-22 14:51:39 -040011002 if (phba->sli_rev == LPFC_SLI_REV4)
11003 abtsiocb->iocb.un.acxri.abortIoTag = iocbq->sli4_xritag;
11004 else
11005 abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag;
dea31012005-04-17 16:05:31 -050011006 abtsiocb->iocb.ulpLe = 1;
11007 abtsiocb->iocb.ulpClass = cmd->ulpClass;
James Smartafbd8d82013-09-06 12:22:13 -040011008 abtsiocb->vport = vport;
dea31012005-04-17 16:05:31 -050011009
James Smart5ffc2662009-11-18 15:39:44 -050011010 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
James Smart895427b2017-02-12 13:52:30 -080011011 abtsiocb->hba_wqidx = iocbq->hba_wqidx;
James Smart341af102010-01-26 23:07:37 -050011012 if (iocbq->iocb_flag & LPFC_IO_FCP)
11013 abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX;
James Smart9bd2bff52014-09-03 12:57:30 -040011014 if (iocbq->iocb_flag & LPFC_IO_FOF)
11015 abtsiocb->iocb_flag |= LPFC_IO_FOF;
James Smart5ffc2662009-11-18 15:39:44 -050011016
James Smart2e0fef82007-06-17 19:56:36 -050011017 if (lpfc_is_link_up(phba))
dea31012005-04-17 16:05:31 -050011018 abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN;
11019 else
11020 abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
11021
James.Smart@Emulex.Com5eb95af2005-06-25 10:34:30 -040011022 /* Setup callback routine and issue the command. */
11023 abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
James Smartecbb2272017-06-01 21:07:04 -070011024 if (phba->sli_rev == LPFC_SLI_REV4) {
11025 pring_s4 = lpfc_sli4_calc_ring(phba, iocbq);
11026 if (!pring_s4)
11027 continue;
11028 ret_val = lpfc_sli_issue_iocb(phba, pring_s4->ringno,
11029 abtsiocb, 0);
11030 } else
11031 ret_val = lpfc_sli_issue_iocb(phba, pring->ringno,
11032 abtsiocb, 0);
dea31012005-04-17 16:05:31 -050011033 if (ret_val == IOCB_ERROR) {
James Bottomley604a3e32005-10-29 10:28:33 -050011034 lpfc_sli_release_iocbq(phba, abtsiocb);
dea31012005-04-17 16:05:31 -050011035 errcnt++;
11036 continue;
11037 }
11038 }
11039
11040 return errcnt;
11041}
11042
James Smarte59058c2008-08-24 21:49:00 -040011043/**
James Smart98912dd2014-04-04 13:52:31 -040011044 * lpfc_sli_abort_taskmgmt - issue abort for all commands on a host/target/LUN
11045 * @vport: Pointer to virtual port.
11046 * @pring: Pointer to driver SLI ring object.
11047 * @tgt_id: SCSI ID of the target.
11048 * @lun_id: LUN ID of the scsi device.
11049 * @taskmgmt_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
11050 *
11051 * This function sends an abort command for every SCSI command
11052 * associated with the given virtual port pending on the ring
11053 * filtered by lpfc_sli_validate_fcp_iocb function.
11054 * When taskmgmt_cmd == LPFC_CTX_LUN, the function sends abort only to the
11055 * FCP iocbs associated with lun specified by tgt_id and lun_id
11056 * parameters
11057 * When taskmgmt_cmd == LPFC_CTX_TGT, the function sends abort only to the
11058 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
11059 * When taskmgmt_cmd == LPFC_CTX_HOST, the function sends abort to all
11060 * FCP iocbs associated with virtual port.
11061 * This function returns number of iocbs it aborted .
11062 * This function is called with no locks held right after a taskmgmt
11063 * command is sent.
11064 **/
11065int
11066lpfc_sli_abort_taskmgmt(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
11067 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd cmd)
11068{
11069 struct lpfc_hba *phba = vport->phba;
James Smart8c50d252014-09-03 12:58:16 -040011070 struct lpfc_scsi_buf *lpfc_cmd;
James Smart98912dd2014-04-04 13:52:31 -040011071 struct lpfc_iocbq *abtsiocbq;
James Smart8c50d252014-09-03 12:58:16 -040011072 struct lpfc_nodelist *ndlp;
James Smart98912dd2014-04-04 13:52:31 -040011073 struct lpfc_iocbq *iocbq;
11074 IOCB_t *icmd;
11075 int sum, i, ret_val;
11076 unsigned long iflags;
11077 struct lpfc_sli_ring *pring_s4;
James Smart98912dd2014-04-04 13:52:31 -040011078
11079 spin_lock_irq(&phba->hbalock);
11080
11081 /* all I/Os are in process of being flushed */
11082 if (phba->hba_flag & HBA_FCP_IOQ_FLUSH) {
11083 spin_unlock_irq(&phba->hbalock);
11084 return 0;
11085 }
11086 sum = 0;
11087
11088 for (i = 1; i <= phba->sli.last_iotag; i++) {
11089 iocbq = phba->sli.iocbq_lookup[i];
11090
11091 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
11092 cmd) != 0)
11093 continue;
11094
11095 /*
11096 * If the iocbq is already being aborted, don't take a second
11097 * action, but do count it.
11098 */
11099 if (iocbq->iocb_flag & LPFC_DRIVER_ABORTED)
11100 continue;
11101
11102 /* issue ABTS for this IOCB based on iotag */
11103 abtsiocbq = __lpfc_sli_get_iocbq(phba);
11104 if (abtsiocbq == NULL)
11105 continue;
11106
11107 icmd = &iocbq->iocb;
11108 abtsiocbq->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
11109 abtsiocbq->iocb.un.acxri.abortContextTag = icmd->ulpContext;
11110 if (phba->sli_rev == LPFC_SLI_REV4)
11111 abtsiocbq->iocb.un.acxri.abortIoTag =
11112 iocbq->sli4_xritag;
11113 else
11114 abtsiocbq->iocb.un.acxri.abortIoTag = icmd->ulpIoTag;
11115 abtsiocbq->iocb.ulpLe = 1;
11116 abtsiocbq->iocb.ulpClass = icmd->ulpClass;
11117 abtsiocbq->vport = vport;
11118
11119 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
James Smart895427b2017-02-12 13:52:30 -080011120 abtsiocbq->hba_wqidx = iocbq->hba_wqidx;
James Smart98912dd2014-04-04 13:52:31 -040011121 if (iocbq->iocb_flag & LPFC_IO_FCP)
11122 abtsiocbq->iocb_flag |= LPFC_USE_FCPWQIDX;
James Smart9bd2bff52014-09-03 12:57:30 -040011123 if (iocbq->iocb_flag & LPFC_IO_FOF)
11124 abtsiocbq->iocb_flag |= LPFC_IO_FOF;
James Smart98912dd2014-04-04 13:52:31 -040011125
James Smart8c50d252014-09-03 12:58:16 -040011126 lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
11127 ndlp = lpfc_cmd->rdata->pnode;
11128
11129 if (lpfc_is_link_up(phba) &&
11130 (ndlp && ndlp->nlp_state == NLP_STE_MAPPED_NODE))
James Smart98912dd2014-04-04 13:52:31 -040011131 abtsiocbq->iocb.ulpCommand = CMD_ABORT_XRI_CN;
11132 else
11133 abtsiocbq->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
11134
11135 /* Setup callback routine and issue the command. */
11136 abtsiocbq->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
11137
11138 /*
11139 * Indicate the IO is being aborted by the driver and set
11140 * the caller's flag into the aborted IO.
11141 */
11142 iocbq->iocb_flag |= LPFC_DRIVER_ABORTED;
11143
11144 if (phba->sli_rev == LPFC_SLI_REV4) {
James Smart895427b2017-02-12 13:52:30 -080011145 pring_s4 = lpfc_sli4_calc_ring(phba, iocbq);
11146 if (pring_s4 == NULL)
11147 continue;
James Smart98912dd2014-04-04 13:52:31 -040011148 /* Note: both hbalock and ring_lock must be set here */
11149 spin_lock_irqsave(&pring_s4->ring_lock, iflags);
11150 ret_val = __lpfc_sli_issue_iocb(phba, pring_s4->ringno,
11151 abtsiocbq, 0);
11152 spin_unlock_irqrestore(&pring_s4->ring_lock, iflags);
11153 } else {
11154 ret_val = __lpfc_sli_issue_iocb(phba, pring->ringno,
11155 abtsiocbq, 0);
11156 }
11157
11158
11159 if (ret_val == IOCB_ERROR)
11160 __lpfc_sli_release_iocbq(phba, abtsiocbq);
11161 else
11162 sum++;
11163 }
11164 spin_unlock_irq(&phba->hbalock);
11165 return sum;
11166}
11167
11168/**
James Smart3621a712009-04-06 18:47:14 -040011169 * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
James Smarte59058c2008-08-24 21:49:00 -040011170 * @phba: Pointer to HBA context object.
11171 * @cmdiocbq: Pointer to command iocb.
11172 * @rspiocbq: Pointer to response iocb.
11173 *
11174 * This function is the completion handler for iocbs issued using
11175 * lpfc_sli_issue_iocb_wait function. This function is called by the
11176 * ring event handler function without any lock held. This function
11177 * can be called from both worker thread context and interrupt
11178 * context. This function also can be called from other thread which
11179 * cleans up the SLI layer objects.
11180 * This function copy the contents of the response iocb to the
11181 * response iocb memory object provided by the caller of
11182 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
11183 * sleeps for the iocb completion.
11184 **/
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -040011185static void
11186lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
11187 struct lpfc_iocbq *cmdiocbq,
11188 struct lpfc_iocbq *rspiocbq)
dea31012005-04-17 16:05:31 -050011189{
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -040011190 wait_queue_head_t *pdone_q;
11191 unsigned long iflags;
James Smart0f65ff62010-02-26 14:14:23 -050011192 struct lpfc_scsi_buf *lpfc_cmd;
dea31012005-04-17 16:05:31 -050011193
James Smart2e0fef82007-06-17 19:56:36 -050011194 spin_lock_irqsave(&phba->hbalock, iflags);
James Smart5a0916b2013-07-15 18:31:42 -040011195 if (cmdiocbq->iocb_flag & LPFC_IO_WAKE_TMO) {
11196
11197 /*
11198 * A time out has occurred for the iocb. If a time out
11199 * completion handler has been supplied, call it. Otherwise,
11200 * just free the iocbq.
11201 */
11202
11203 spin_unlock_irqrestore(&phba->hbalock, iflags);
11204 cmdiocbq->iocb_cmpl = cmdiocbq->wait_iocb_cmpl;
11205 cmdiocbq->wait_iocb_cmpl = NULL;
11206 if (cmdiocbq->iocb_cmpl)
11207 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, NULL);
11208 else
11209 lpfc_sli_release_iocbq(phba, cmdiocbq);
11210 return;
11211 }
11212
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -040011213 cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
11214 if (cmdiocbq->context2 && rspiocbq)
11215 memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
11216 &rspiocbq->iocb, sizeof(IOCB_t));
11217
James Smart0f65ff62010-02-26 14:14:23 -050011218 /* Set the exchange busy flag for task management commands */
11219 if ((cmdiocbq->iocb_flag & LPFC_IO_FCP) &&
11220 !(cmdiocbq->iocb_flag & LPFC_IO_LIBDFC)) {
11221 lpfc_cmd = container_of(cmdiocbq, struct lpfc_scsi_buf,
11222 cur_iocbq);
11223 lpfc_cmd->exch_busy = rspiocbq->iocb_flag & LPFC_EXCHANGE_BUSY;
11224 }
11225
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -040011226 pdone_q = cmdiocbq->context_un.wait_queue;
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -040011227 if (pdone_q)
11228 wake_up(pdone_q);
James Smart858c9f62007-06-17 19:56:39 -050011229 spin_unlock_irqrestore(&phba->hbalock, iflags);
dea31012005-04-17 16:05:31 -050011230 return;
11231}
11232
James Smarte59058c2008-08-24 21:49:00 -040011233/**
James Smartd11e31d2009-06-10 17:23:06 -040011234 * lpfc_chk_iocb_flg - Test IOCB flag with lock held.
11235 * @phba: Pointer to HBA context object..
11236 * @piocbq: Pointer to command iocb.
11237 * @flag: Flag to test.
11238 *
11239 * This routine grabs the hbalock and then test the iocb_flag to
11240 * see if the passed in flag is set.
11241 * Returns:
11242 * 1 if flag is set.
11243 * 0 if flag is not set.
11244 **/
11245static int
11246lpfc_chk_iocb_flg(struct lpfc_hba *phba,
11247 struct lpfc_iocbq *piocbq, uint32_t flag)
11248{
11249 unsigned long iflags;
11250 int ret;
11251
11252 spin_lock_irqsave(&phba->hbalock, iflags);
11253 ret = piocbq->iocb_flag & flag;
11254 spin_unlock_irqrestore(&phba->hbalock, iflags);
11255 return ret;
11256
11257}
11258
11259/**
James Smart3621a712009-04-06 18:47:14 -040011260 * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
James Smarte59058c2008-08-24 21:49:00 -040011261 * @phba: Pointer to HBA context object..
11262 * @pring: Pointer to sli ring.
11263 * @piocb: Pointer to command iocb.
11264 * @prspiocbq: Pointer to response iocb.
11265 * @timeout: Timeout in number of seconds.
11266 *
11267 * This function issues the iocb to firmware and waits for the
James Smart5a0916b2013-07-15 18:31:42 -040011268 * iocb to complete. The iocb_cmpl field of the shall be used
11269 * to handle iocbs which time out. If the field is NULL, the
11270 * function shall free the iocbq structure. If more clean up is
11271 * needed, the caller is expected to provide a completion function
11272 * that will provide the needed clean up. If the iocb command is
11273 * not completed within timeout seconds, the function will either
11274 * free the iocbq structure (if iocb_cmpl == NULL) or execute the
11275 * completion function set in the iocb_cmpl field and then return
11276 * a status of IOCB_TIMEDOUT. The caller should not free the iocb
11277 * resources if this function returns IOCB_TIMEDOUT.
James Smarte59058c2008-08-24 21:49:00 -040011278 * The function waits for the iocb completion using an
11279 * non-interruptible wait.
11280 * This function will sleep while waiting for iocb completion.
11281 * So, this function should not be called from any context which
11282 * does not allow sleeping. Due to the same reason, this function
11283 * cannot be called with interrupt disabled.
11284 * This function assumes that the iocb completions occur while
11285 * this function sleep. So, this function cannot be called from
11286 * the thread which process iocb completion for this ring.
11287 * This function clears the iocb_flag of the iocb object before
11288 * issuing the iocb and the iocb completion handler sets this
11289 * flag and wakes this thread when the iocb completes.
11290 * The contents of the response iocb will be copied to prspiocbq
11291 * by the completion handler when the command completes.
11292 * This function returns IOCB_SUCCESS when success.
11293 * This function is called with no lock held.
11294 **/
dea31012005-04-17 16:05:31 -050011295int
James Smart2e0fef82007-06-17 19:56:36 -050011296lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
James Smartda0436e2009-05-22 14:51:39 -040011297 uint32_t ring_number,
James Smart2e0fef82007-06-17 19:56:36 -050011298 struct lpfc_iocbq *piocb,
11299 struct lpfc_iocbq *prspiocbq,
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -040011300 uint32_t timeout)
dea31012005-04-17 16:05:31 -050011301{
Peter Zijlstra7259f0d2006-10-29 22:46:36 -080011302 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -040011303 long timeleft, timeout_req = 0;
11304 int retval = IOCB_SUCCESS;
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -050011305 uint32_t creg_val;
James Smart0e9bb8d2013-03-01 16:35:12 -050011306 struct lpfc_iocbq *iocb;
11307 int txq_cnt = 0;
11308 int txcmplq_cnt = 0;
James Smart895427b2017-02-12 13:52:30 -080011309 struct lpfc_sli_ring *pring;
James Smart5a0916b2013-07-15 18:31:42 -040011310 unsigned long iflags;
11311 bool iocb_completed = true;
11312
James Smart895427b2017-02-12 13:52:30 -080011313 if (phba->sli_rev >= LPFC_SLI_REV4)
11314 pring = lpfc_sli4_calc_ring(phba, piocb);
11315 else
11316 pring = &phba->sli.sli3_ring[ring_number];
dea31012005-04-17 16:05:31 -050011317 /*
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -040011318 * If the caller has provided a response iocbq buffer, then context2
11319 * is NULL or its an error.
dea31012005-04-17 16:05:31 -050011320 */
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -040011321 if (prspiocbq) {
11322 if (piocb->context2)
11323 return IOCB_ERROR;
11324 piocb->context2 = prspiocbq;
dea31012005-04-17 16:05:31 -050011325 }
11326
James Smart5a0916b2013-07-15 18:31:42 -040011327 piocb->wait_iocb_cmpl = piocb->iocb_cmpl;
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -040011328 piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait;
11329 piocb->context_un.wait_queue = &done_q;
James Smart5a0916b2013-07-15 18:31:42 -040011330 piocb->iocb_flag &= ~(LPFC_IO_WAKE | LPFC_IO_WAKE_TMO);
dea31012005-04-17 16:05:31 -050011331
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -050011332 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
James Smart9940b972011-03-11 16:06:12 -050011333 if (lpfc_readl(phba->HCregaddr, &creg_val))
11334 return IOCB_ERROR;
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -050011335 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
11336 writel(creg_val, phba->HCregaddr);
11337 readl(phba->HCregaddr); /* flush */
11338 }
11339
James Smart2a9bf3d2010-06-07 15:24:45 -040011340 retval = lpfc_sli_issue_iocb(phba, ring_number, piocb,
11341 SLI_IOCB_RET_IOCB);
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -040011342 if (retval == IOCB_SUCCESS) {
James Smart256ec0d2013-04-17 20:14:58 -040011343 timeout_req = msecs_to_jiffies(timeout * 1000);
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -040011344 timeleft = wait_event_timeout(done_q,
James Smartd11e31d2009-06-10 17:23:06 -040011345 lpfc_chk_iocb_flg(phba, piocb, LPFC_IO_WAKE),
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -040011346 timeout_req);
James Smart5a0916b2013-07-15 18:31:42 -040011347 spin_lock_irqsave(&phba->hbalock, iflags);
11348 if (!(piocb->iocb_flag & LPFC_IO_WAKE)) {
dea31012005-04-17 16:05:31 -050011349
James Smart5a0916b2013-07-15 18:31:42 -040011350 /*
11351 * IOCB timed out. Inform the wake iocb wait
11352 * completion function and set local status
11353 */
11354
11355 iocb_completed = false;
11356 piocb->iocb_flag |= LPFC_IO_WAKE_TMO;
11357 }
11358 spin_unlock_irqrestore(&phba->hbalock, iflags);
11359 if (iocb_completed) {
James Smart7054a602007-04-25 09:52:34 -040011360 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -040011361 "0331 IOCB wake signaled\n");
James Smart53151bb2013-10-10 12:24:07 -040011362 /* Note: we are not indicating if the IOCB has a success
11363 * status or not - that's for the caller to check.
11364 * IOCB_SUCCESS means just that the command was sent and
11365 * completed. Not that it completed successfully.
11366 * */
James Smart7054a602007-04-25 09:52:34 -040011367 } else if (timeleft == 0) {
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -040011368 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -040011369 "0338 IOCB wait timeout error - no "
11370 "wake response Data x%x\n", timeout);
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -040011371 retval = IOCB_TIMEDOUT;
James Smart7054a602007-04-25 09:52:34 -040011372 } else {
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -040011373 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -040011374 "0330 IOCB wake NOT set, "
11375 "Data x%x x%lx\n",
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -040011376 timeout, (timeleft / jiffies));
11377 retval = IOCB_TIMEDOUT;
dea31012005-04-17 16:05:31 -050011378 }
James Smart2a9bf3d2010-06-07 15:24:45 -040011379 } else if (retval == IOCB_BUSY) {
James Smart0e9bb8d2013-03-01 16:35:12 -050011380 if (phba->cfg_log_verbose & LOG_SLI) {
11381 list_for_each_entry(iocb, &pring->txq, list) {
11382 txq_cnt++;
11383 }
11384 list_for_each_entry(iocb, &pring->txcmplq, list) {
11385 txcmplq_cnt++;
11386 }
11387 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11388 "2818 Max IOCBs %d txq cnt %d txcmplq cnt %d\n",
11389 phba->iocb_cnt, txq_cnt, txcmplq_cnt);
11390 }
James Smart2a9bf3d2010-06-07 15:24:45 -040011391 return retval;
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -040011392 } else {
11393 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smartd7c255b2008-08-24 21:50:00 -040011394 "0332 IOCB wait issue failed, Data x%x\n",
James Smarte8b62012007-08-02 11:10:09 -040011395 retval);
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -040011396 retval = IOCB_ERROR;
dea31012005-04-17 16:05:31 -050011397 }
11398
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -050011399 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
James Smart9940b972011-03-11 16:06:12 -050011400 if (lpfc_readl(phba->HCregaddr, &creg_val))
11401 return IOCB_ERROR;
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -050011402 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
11403 writel(creg_val, phba->HCregaddr);
11404 readl(phba->HCregaddr); /* flush */
11405 }
11406
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -040011407 if (prspiocbq)
11408 piocb->context2 = NULL;
11409
11410 piocb->context_un.wait_queue = NULL;
11411 piocb->iocb_cmpl = NULL;
dea31012005-04-17 16:05:31 -050011412 return retval;
11413}
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -040011414
James Smarte59058c2008-08-24 21:49:00 -040011415/**
James Smart3621a712009-04-06 18:47:14 -040011416 * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
James Smarte59058c2008-08-24 21:49:00 -040011417 * @phba: Pointer to HBA context object.
11418 * @pmboxq: Pointer to driver mailbox object.
11419 * @timeout: Timeout in number of seconds.
11420 *
11421 * This function issues the mailbox to firmware and waits for the
11422 * mailbox command to complete. If the mailbox command is not
11423 * completed within timeout seconds, it returns MBX_TIMEOUT.
11424 * The function waits for the mailbox completion using an
11425 * interruptible wait. If the thread is woken up due to a
11426 * signal, MBX_TIMEOUT error is returned to the caller. Caller
11427 * should not free the mailbox resources, if this function returns
11428 * MBX_TIMEOUT.
11429 * This function will sleep while waiting for mailbox completion.
11430 * So, this function should not be called from any context which
11431 * does not allow sleeping. Due to the same reason, this function
11432 * cannot be called with interrupt disabled.
11433 * This function assumes that the mailbox completion occurs while
11434 * this function sleep. So, this function cannot be called from
11435 * the worker thread which processes mailbox completion.
11436 * This function is called in the context of HBA management
11437 * applications.
11438 * This function returns MBX_SUCCESS when successful.
11439 * This function is called with no lock held.
11440 **/
dea31012005-04-17 16:05:31 -050011441int
James Smart2e0fef82007-06-17 19:56:36 -050011442lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq,
dea31012005-04-17 16:05:31 -050011443 uint32_t timeout)
11444{
Peter Zijlstra7259f0d2006-10-29 22:46:36 -080011445 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
James Smartb230b8a2013-05-31 17:05:27 -040011446 MAILBOX_t *mb = NULL;
dea31012005-04-17 16:05:31 -050011447 int retval;
James Smart858c9f62007-06-17 19:56:39 -050011448 unsigned long flag;
dea31012005-04-17 16:05:31 -050011449
James Smartb230b8a2013-05-31 17:05:27 -040011450 /* The caller might set context1 for extended buffer */
James Smart98c9ea52007-10-27 13:37:33 -040011451 if (pmboxq->context1)
James Smartb230b8a2013-05-31 17:05:27 -040011452 mb = (MAILBOX_t *)pmboxq->context1;
dea31012005-04-17 16:05:31 -050011453
James Smart495a7142008-06-14 22:52:59 -040011454 pmboxq->mbox_flag &= ~LPFC_MBX_WAKE;
dea31012005-04-17 16:05:31 -050011455 /* setup wake call as IOCB callback */
11456 pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait;
11457 /* setup context field to pass wait_queue pointer to wake function */
11458 pmboxq->context1 = &done_q;
11459
dea31012005-04-17 16:05:31 -050011460 /* now issue the command */
11461 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
dea31012005-04-17 16:05:31 -050011462 if (retval == MBX_BUSY || retval == MBX_SUCCESS) {
James Smart7054a602007-04-25 09:52:34 -040011463 wait_event_interruptible_timeout(done_q,
11464 pmboxq->mbox_flag & LPFC_MBX_WAKE,
James Smart256ec0d2013-04-17 20:14:58 -040011465 msecs_to_jiffies(timeout * 1000));
James Smart7054a602007-04-25 09:52:34 -040011466
James Smart858c9f62007-06-17 19:56:39 -050011467 spin_lock_irqsave(&phba->hbalock, flag);
James Smartb230b8a2013-05-31 17:05:27 -040011468 /* restore the possible extended buffer for free resource */
11469 pmboxq->context1 = (uint8_t *)mb;
James Smart7054a602007-04-25 09:52:34 -040011470 /*
11471 * if LPFC_MBX_WAKE flag is set the mailbox is completed
11472 * else do not free the resources.
11473 */
James Smartd7c47992010-06-08 18:31:54 -040011474 if (pmboxq->mbox_flag & LPFC_MBX_WAKE) {
dea31012005-04-17 16:05:31 -050011475 retval = MBX_SUCCESS;
James Smartd7c47992010-06-08 18:31:54 -040011476 } else {
James Smart7054a602007-04-25 09:52:34 -040011477 retval = MBX_TIMEOUT;
James Smart858c9f62007-06-17 19:56:39 -050011478 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
11479 }
11480 spin_unlock_irqrestore(&phba->hbalock, flag);
James Smartb230b8a2013-05-31 17:05:27 -040011481 } else {
11482 /* restore the possible extended buffer for free resource */
11483 pmboxq->context1 = (uint8_t *)mb;
dea31012005-04-17 16:05:31 -050011484 }
11485
dea31012005-04-17 16:05:31 -050011486 return retval;
11487}
11488
James Smarte59058c2008-08-24 21:49:00 -040011489/**
James Smart3772a992009-05-22 14:50:54 -040011490 * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
James Smarte59058c2008-08-24 21:49:00 -040011491 * @phba: Pointer to HBA context.
11492 *
James Smart3772a992009-05-22 14:50:54 -040011493 * This function is called to shutdown the driver's mailbox sub-system.
11494 * It first marks the mailbox sub-system is in a block state to prevent
11495 * the asynchronous mailbox command from issued off the pending mailbox
11496 * command queue. If the mailbox command sub-system shutdown is due to
11497 * HBA error conditions such as EEH or ERATT, this routine shall invoke
11498 * the mailbox sub-system flush routine to forcefully bring down the
11499 * mailbox sub-system. Otherwise, if it is due to normal condition (such
11500 * as with offline or HBA function reset), this routine will wait for the
11501 * outstanding mailbox command to complete before invoking the mailbox
11502 * sub-system flush routine to gracefully bring down mailbox sub-system.
James Smarte59058c2008-08-24 21:49:00 -040011503 **/
James Smart3772a992009-05-22 14:50:54 -040011504void
James Smart618a5232012-06-12 13:54:36 -040011505lpfc_sli_mbox_sys_shutdown(struct lpfc_hba *phba, int mbx_action)
James Smartb4c02652006-07-06 15:50:43 -040011506{
James Smart3772a992009-05-22 14:50:54 -040011507 struct lpfc_sli *psli = &phba->sli;
James Smart3772a992009-05-22 14:50:54 -040011508 unsigned long timeout;
11509
James Smart618a5232012-06-12 13:54:36 -040011510 if (mbx_action == LPFC_MBX_NO_WAIT) {
11511 /* delay 100ms for port state */
11512 msleep(100);
11513 lpfc_sli_mbox_sys_flush(phba);
11514 return;
11515 }
James Smarta183a152011-10-10 21:32:43 -040011516 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
James Smartd7069f02012-03-01 22:36:29 -050011517
James Smart3772a992009-05-22 14:50:54 -040011518 spin_lock_irq(&phba->hbalock);
11519 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
James Smart3772a992009-05-22 14:50:54 -040011520
11521 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
James Smart3772a992009-05-22 14:50:54 -040011522 /* Determine how long we might wait for the active mailbox
11523 * command to be gracefully completed by firmware.
11524 */
James Smarta183a152011-10-10 21:32:43 -040011525 if (phba->sli.mbox_active)
11526 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
11527 phba->sli.mbox_active) *
11528 1000) + jiffies;
11529 spin_unlock_irq(&phba->hbalock);
11530
James Smart3772a992009-05-22 14:50:54 -040011531 while (phba->sli.mbox_active) {
11532 /* Check active mailbox complete status every 2ms */
11533 msleep(2);
11534 if (time_after(jiffies, timeout))
11535 /* Timeout, let the mailbox flush routine to
11536 * forcefully release active mailbox command
11537 */
11538 break;
11539 }
James Smartd7069f02012-03-01 22:36:29 -050011540 } else
11541 spin_unlock_irq(&phba->hbalock);
11542
James Smart3772a992009-05-22 14:50:54 -040011543 lpfc_sli_mbox_sys_flush(phba);
11544}
11545
11546/**
11547 * lpfc_sli_eratt_read - read sli-3 error attention events
11548 * @phba: Pointer to HBA context.
11549 *
11550 * This function is called to read the SLI3 device error attention registers
11551 * for possible error attention events. The caller must hold the hostlock
11552 * with spin_lock_irq().
11553 *
Lucas De Marchi25985ed2011-03-30 22:57:33 -030011554 * This function returns 1 when there is Error Attention in the Host Attention
James Smart3772a992009-05-22 14:50:54 -040011555 * Register and returns 0 otherwise.
11556 **/
11557static int
11558lpfc_sli_eratt_read(struct lpfc_hba *phba)
11559{
James Smarted957682007-06-17 19:56:37 -050011560 uint32_t ha_copy;
James Smartb4c02652006-07-06 15:50:43 -040011561
James Smart3772a992009-05-22 14:50:54 -040011562 /* Read chip Host Attention (HA) register */
James Smart9940b972011-03-11 16:06:12 -050011563 if (lpfc_readl(phba->HAregaddr, &ha_copy))
11564 goto unplug_err;
11565
James Smart3772a992009-05-22 14:50:54 -040011566 if (ha_copy & HA_ERATT) {
11567 /* Read host status register to retrieve error event */
James Smart9940b972011-03-11 16:06:12 -050011568 if (lpfc_sli_read_hs(phba))
11569 goto unplug_err;
James Smartb4c02652006-07-06 15:50:43 -040011570
James Smart3772a992009-05-22 14:50:54 -040011571 /* Check if there is a deferred error condition is active */
11572 if ((HS_FFER1 & phba->work_hs) &&
11573 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
James Smartdcf2a4e2010-09-29 11:18:53 -040011574 HS_FFER6 | HS_FFER7 | HS_FFER8) & phba->work_hs)) {
James Smart3772a992009-05-22 14:50:54 -040011575 phba->hba_flag |= DEFER_ERATT;
James Smart3772a992009-05-22 14:50:54 -040011576 /* Clear all interrupt enable conditions */
11577 writel(0, phba->HCregaddr);
11578 readl(phba->HCregaddr);
11579 }
11580
11581 /* Set the driver HA work bitmap */
James Smart3772a992009-05-22 14:50:54 -040011582 phba->work_ha |= HA_ERATT;
11583 /* Indicate polling handles this ERATT */
11584 phba->hba_flag |= HBA_ERATT_HANDLED;
James Smart3772a992009-05-22 14:50:54 -040011585 return 1;
James Smartb4c02652006-07-06 15:50:43 -040011586 }
James Smart3772a992009-05-22 14:50:54 -040011587 return 0;
James Smart9940b972011-03-11 16:06:12 -050011588
11589unplug_err:
11590 /* Set the driver HS work bitmap */
11591 phba->work_hs |= UNPLUG_ERR;
11592 /* Set the driver HA work bitmap */
11593 phba->work_ha |= HA_ERATT;
11594 /* Indicate polling handles this ERATT */
11595 phba->hba_flag |= HBA_ERATT_HANDLED;
11596 return 1;
James Smartb4c02652006-07-06 15:50:43 -040011597}
11598
James Smarte59058c2008-08-24 21:49:00 -040011599/**
James Smartda0436e2009-05-22 14:51:39 -040011600 * lpfc_sli4_eratt_read - read sli-4 error attention events
11601 * @phba: Pointer to HBA context.
11602 *
11603 * This function is called to read the SLI4 device error attention registers
11604 * for possible error attention events. The caller must hold the hostlock
11605 * with spin_lock_irq().
11606 *
Lucas De Marchi25985ed2011-03-30 22:57:33 -030011607 * This function returns 1 when there is Error Attention in the Host Attention
James Smartda0436e2009-05-22 14:51:39 -040011608 * Register and returns 0 otherwise.
11609 **/
11610static int
11611lpfc_sli4_eratt_read(struct lpfc_hba *phba)
11612{
11613 uint32_t uerr_sta_hi, uerr_sta_lo;
James Smart2fcee4b2010-12-15 17:57:46 -050011614 uint32_t if_type, portsmphr;
11615 struct lpfc_register portstat_reg;
James Smartda0436e2009-05-22 14:51:39 -040011616
James Smart2fcee4b2010-12-15 17:57:46 -050011617 /*
11618 * For now, use the SLI4 device internal unrecoverable error
James Smartda0436e2009-05-22 14:51:39 -040011619 * registers for error attention. This can be changed later.
11620 */
James Smart2fcee4b2010-12-15 17:57:46 -050011621 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
11622 switch (if_type) {
11623 case LPFC_SLI_INTF_IF_TYPE_0:
James Smart9940b972011-03-11 16:06:12 -050011624 if (lpfc_readl(phba->sli4_hba.u.if_type0.UERRLOregaddr,
11625 &uerr_sta_lo) ||
11626 lpfc_readl(phba->sli4_hba.u.if_type0.UERRHIregaddr,
11627 &uerr_sta_hi)) {
11628 phba->work_hs |= UNPLUG_ERR;
11629 phba->work_ha |= HA_ERATT;
11630 phba->hba_flag |= HBA_ERATT_HANDLED;
11631 return 1;
11632 }
James Smart2fcee4b2010-12-15 17:57:46 -050011633 if ((~phba->sli4_hba.ue_mask_lo & uerr_sta_lo) ||
11634 (~phba->sli4_hba.ue_mask_hi & uerr_sta_hi)) {
11635 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11636 "1423 HBA Unrecoverable error: "
11637 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
11638 "ue_mask_lo_reg=0x%x, "
11639 "ue_mask_hi_reg=0x%x\n",
11640 uerr_sta_lo, uerr_sta_hi,
11641 phba->sli4_hba.ue_mask_lo,
11642 phba->sli4_hba.ue_mask_hi);
11643 phba->work_status[0] = uerr_sta_lo;
11644 phba->work_status[1] = uerr_sta_hi;
11645 phba->work_ha |= HA_ERATT;
11646 phba->hba_flag |= HBA_ERATT_HANDLED;
11647 return 1;
11648 }
11649 break;
11650 case LPFC_SLI_INTF_IF_TYPE_2:
James Smart9940b972011-03-11 16:06:12 -050011651 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
11652 &portstat_reg.word0) ||
11653 lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
11654 &portsmphr)){
11655 phba->work_hs |= UNPLUG_ERR;
11656 phba->work_ha |= HA_ERATT;
11657 phba->hba_flag |= HBA_ERATT_HANDLED;
11658 return 1;
11659 }
James Smart2fcee4b2010-12-15 17:57:46 -050011660 if (bf_get(lpfc_sliport_status_err, &portstat_reg)) {
11661 phba->work_status[0] =
11662 readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
11663 phba->work_status[1] =
11664 readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
11665 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smart2e90f4b2011-12-13 13:22:37 -050011666 "2885 Port Status Event: "
James Smart2fcee4b2010-12-15 17:57:46 -050011667 "port status reg 0x%x, "
11668 "port smphr reg 0x%x, "
11669 "error 1=0x%x, error 2=0x%x\n",
11670 portstat_reg.word0,
11671 portsmphr,
11672 phba->work_status[0],
11673 phba->work_status[1]);
11674 phba->work_ha |= HA_ERATT;
11675 phba->hba_flag |= HBA_ERATT_HANDLED;
11676 return 1;
11677 }
11678 break;
11679 case LPFC_SLI_INTF_IF_TYPE_1:
11680 default:
James Smarta747c9c2009-11-18 15:41:10 -050011681 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smart2fcee4b2010-12-15 17:57:46 -050011682 "2886 HBA Error Attention on unsupported "
11683 "if type %d.", if_type);
James Smarta747c9c2009-11-18 15:41:10 -050011684 return 1;
James Smartda0436e2009-05-22 14:51:39 -040011685 }
James Smart2fcee4b2010-12-15 17:57:46 -050011686
James Smartda0436e2009-05-22 14:51:39 -040011687 return 0;
11688}
11689
11690/**
James Smart3621a712009-04-06 18:47:14 -040011691 * lpfc_sli_check_eratt - check error attention events
James Smart93996272008-08-24 21:50:30 -040011692 * @phba: Pointer to HBA context.
11693 *
James Smart3772a992009-05-22 14:50:54 -040011694 * This function is called from timer soft interrupt context to check HBA's
James Smart93996272008-08-24 21:50:30 -040011695 * error attention register bit for error attention events.
11696 *
Lucas De Marchi25985ed2011-03-30 22:57:33 -030011697 * This function returns 1 when there is Error Attention in the Host Attention
James Smart93996272008-08-24 21:50:30 -040011698 * Register and returns 0 otherwise.
11699 **/
11700int
11701lpfc_sli_check_eratt(struct lpfc_hba *phba)
11702{
11703 uint32_t ha_copy;
11704
11705 /* If somebody is waiting to handle an eratt, don't process it
11706 * here. The brdkill function will do this.
11707 */
11708 if (phba->link_flag & LS_IGNORE_ERATT)
11709 return 0;
11710
11711 /* Check if interrupt handler handles this ERATT */
11712 spin_lock_irq(&phba->hbalock);
11713 if (phba->hba_flag & HBA_ERATT_HANDLED) {
11714 /* Interrupt handler has handled ERATT */
11715 spin_unlock_irq(&phba->hbalock);
11716 return 0;
11717 }
11718
James Smarta257bf92009-04-06 18:48:10 -040011719 /*
11720 * If there is deferred error attention, do not check for error
11721 * attention
11722 */
11723 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
11724 spin_unlock_irq(&phba->hbalock);
11725 return 0;
11726 }
11727
James Smart3772a992009-05-22 14:50:54 -040011728 /* If PCI channel is offline, don't process it */
11729 if (unlikely(pci_channel_offline(phba->pcidev))) {
James Smart93996272008-08-24 21:50:30 -040011730 spin_unlock_irq(&phba->hbalock);
James Smart3772a992009-05-22 14:50:54 -040011731 return 0;
11732 }
11733
11734 switch (phba->sli_rev) {
11735 case LPFC_SLI_REV2:
11736 case LPFC_SLI_REV3:
11737 /* Read chip Host Attention (HA) register */
11738 ha_copy = lpfc_sli_eratt_read(phba);
11739 break;
James Smartda0436e2009-05-22 14:51:39 -040011740 case LPFC_SLI_REV4:
James Smart2fcee4b2010-12-15 17:57:46 -050011741 /* Read device Uncoverable Error (UERR) registers */
James Smartda0436e2009-05-22 14:51:39 -040011742 ha_copy = lpfc_sli4_eratt_read(phba);
11743 break;
James Smart3772a992009-05-22 14:50:54 -040011744 default:
11745 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11746 "0299 Invalid SLI revision (%d)\n",
11747 phba->sli_rev);
11748 ha_copy = 0;
11749 break;
James Smart93996272008-08-24 21:50:30 -040011750 }
11751 spin_unlock_irq(&phba->hbalock);
James Smart3772a992009-05-22 14:50:54 -040011752
11753 return ha_copy;
11754}
11755
11756/**
11757 * lpfc_intr_state_check - Check device state for interrupt handling
11758 * @phba: Pointer to HBA context.
11759 *
11760 * This inline routine checks whether a device or its PCI slot is in a state
11761 * that the interrupt should be handled.
11762 *
11763 * This function returns 0 if the device or the PCI slot is in a state that
11764 * interrupt should be handled, otherwise -EIO.
11765 */
11766static inline int
11767lpfc_intr_state_check(struct lpfc_hba *phba)
11768{
11769 /* If the pci channel is offline, ignore all the interrupts */
11770 if (unlikely(pci_channel_offline(phba->pcidev)))
11771 return -EIO;
11772
11773 /* Update device level interrupt statistics */
11774 phba->sli.slistat.sli_intr++;
11775
11776 /* Ignore all interrupts during initialization. */
11777 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
11778 return -EIO;
11779
James Smart93996272008-08-24 21:50:30 -040011780 return 0;
11781}
11782
11783/**
James Smart3772a992009-05-22 14:50:54 -040011784 * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
James Smarte59058c2008-08-24 21:49:00 -040011785 * @irq: Interrupt number.
11786 * @dev_id: The device context pointer.
11787 *
James Smart93996272008-08-24 21:50:30 -040011788 * This function is directly called from the PCI layer as an interrupt
James Smart3772a992009-05-22 14:50:54 -040011789 * service routine when device with SLI-3 interface spec is enabled with
11790 * MSI-X multi-message interrupt mode and there are slow-path events in
11791 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
11792 * interrupt mode, this function is called as part of the device-level
11793 * interrupt handler. When the PCI slot is in error recovery or the HBA
11794 * is undergoing initialization, the interrupt handler will not process
11795 * the interrupt. The link attention and ELS ring attention events are
11796 * handled by the worker thread. The interrupt handler signals the worker
11797 * thread and returns for these events. This function is called without
11798 * any lock held. It gets the hbalock to access and update SLI data
James Smart93996272008-08-24 21:50:30 -040011799 * structures.
11800 *
11801 * This function returns IRQ_HANDLED when interrupt is handled else it
11802 * returns IRQ_NONE.
James Smarte59058c2008-08-24 21:49:00 -040011803 **/
dea31012005-04-17 16:05:31 -050011804irqreturn_t
James Smart3772a992009-05-22 14:50:54 -040011805lpfc_sli_sp_intr_handler(int irq, void *dev_id)
dea31012005-04-17 16:05:31 -050011806{
James Smart2e0fef82007-06-17 19:56:36 -050011807 struct lpfc_hba *phba;
James Smarta747c9c2009-11-18 15:41:10 -050011808 uint32_t ha_copy, hc_copy;
dea31012005-04-17 16:05:31 -050011809 uint32_t work_ha_copy;
11810 unsigned long status;
James Smart5b75da22008-12-04 22:39:35 -050011811 unsigned long iflag;
dea31012005-04-17 16:05:31 -050011812 uint32_t control;
11813
James Smart92d7f7b2007-06-17 19:56:38 -050011814 MAILBOX_t *mbox, *pmbox;
James Smart858c9f62007-06-17 19:56:39 -050011815 struct lpfc_vport *vport;
11816 struct lpfc_nodelist *ndlp;
11817 struct lpfc_dmabuf *mp;
James Smart92d7f7b2007-06-17 19:56:38 -050011818 LPFC_MBOXQ_t *pmb;
11819 int rc;
11820
dea31012005-04-17 16:05:31 -050011821 /*
11822 * Get the driver's phba structure from the dev_id and
11823 * assume the HBA is not interrupting.
11824 */
James Smart93996272008-08-24 21:50:30 -040011825 phba = (struct lpfc_hba *)dev_id;
dea31012005-04-17 16:05:31 -050011826
11827 if (unlikely(!phba))
11828 return IRQ_NONE;
11829
dea31012005-04-17 16:05:31 -050011830 /*
James Smart93996272008-08-24 21:50:30 -040011831 * Stuff needs to be attented to when this function is invoked as an
11832 * individual interrupt handler in MSI-X multi-message interrupt mode
dea31012005-04-17 16:05:31 -050011833 */
James Smart93996272008-08-24 21:50:30 -040011834 if (phba->intr_type == MSIX) {
James Smart3772a992009-05-22 14:50:54 -040011835 /* Check device state for handling interrupt */
11836 if (lpfc_intr_state_check(phba))
James Smart93996272008-08-24 21:50:30 -040011837 return IRQ_NONE;
11838 /* Need to read HA REG for slow-path events */
James Smart5b75da22008-12-04 22:39:35 -050011839 spin_lock_irqsave(&phba->hbalock, iflag);
James Smart9940b972011-03-11 16:06:12 -050011840 if (lpfc_readl(phba->HAregaddr, &ha_copy))
11841 goto unplug_error;
James Smart93996272008-08-24 21:50:30 -040011842 /* If somebody is waiting to handle an eratt don't process it
11843 * here. The brdkill function will do this.
11844 */
11845 if (phba->link_flag & LS_IGNORE_ERATT)
11846 ha_copy &= ~HA_ERATT;
11847 /* Check the need for handling ERATT in interrupt handler */
11848 if (ha_copy & HA_ERATT) {
11849 if (phba->hba_flag & HBA_ERATT_HANDLED)
11850 /* ERATT polling has handled ERATT */
11851 ha_copy &= ~HA_ERATT;
11852 else
11853 /* Indicate interrupt handler handles ERATT */
11854 phba->hba_flag |= HBA_ERATT_HANDLED;
11855 }
James Smarta257bf92009-04-06 18:48:10 -040011856
11857 /*
11858 * If there is deferred error attention, do not check for any
11859 * interrupt.
11860 */
11861 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
James Smart3772a992009-05-22 14:50:54 -040011862 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smarta257bf92009-04-06 18:48:10 -040011863 return IRQ_NONE;
11864 }
11865
James Smart93996272008-08-24 21:50:30 -040011866 /* Clear up only attention source related to slow-path */
James Smart9940b972011-03-11 16:06:12 -050011867 if (lpfc_readl(phba->HCregaddr, &hc_copy))
11868 goto unplug_error;
11869
James Smarta747c9c2009-11-18 15:41:10 -050011870 writel(hc_copy & ~(HC_MBINT_ENA | HC_R2INT_ENA |
11871 HC_LAINT_ENA | HC_ERINT_ENA),
11872 phba->HCregaddr);
James Smart93996272008-08-24 21:50:30 -040011873 writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)),
11874 phba->HAregaddr);
James Smarta747c9c2009-11-18 15:41:10 -050011875 writel(hc_copy, phba->HCregaddr);
James Smart93996272008-08-24 21:50:30 -040011876 readl(phba->HAregaddr); /* flush */
James Smart5b75da22008-12-04 22:39:35 -050011877 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart93996272008-08-24 21:50:30 -040011878 } else
11879 ha_copy = phba->ha_copy;
dea31012005-04-17 16:05:31 -050011880
dea31012005-04-17 16:05:31 -050011881 work_ha_copy = ha_copy & phba->work_ha_mask;
11882
James Smart93996272008-08-24 21:50:30 -040011883 if (work_ha_copy) {
dea31012005-04-17 16:05:31 -050011884 if (work_ha_copy & HA_LATT) {
11885 if (phba->sli.sli_flag & LPFC_PROCESS_LA) {
11886 /*
11887 * Turn off Link Attention interrupts
11888 * until CLEAR_LA done
11889 */
James Smart5b75da22008-12-04 22:39:35 -050011890 spin_lock_irqsave(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -050011891 phba->sli.sli_flag &= ~LPFC_PROCESS_LA;
James Smart9940b972011-03-11 16:06:12 -050011892 if (lpfc_readl(phba->HCregaddr, &control))
11893 goto unplug_error;
dea31012005-04-17 16:05:31 -050011894 control &= ~HC_LAINT_ENA;
11895 writel(control, phba->HCregaddr);
11896 readl(phba->HCregaddr); /* flush */
James Smart5b75da22008-12-04 22:39:35 -050011897 spin_unlock_irqrestore(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -050011898 }
11899 else
11900 work_ha_copy &= ~HA_LATT;
11901 }
11902
James Smart93996272008-08-24 21:50:30 -040011903 if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) {
James Smart858c9f62007-06-17 19:56:39 -050011904 /*
11905 * Turn off Slow Rings interrupts, LPFC_ELS_RING is
11906 * the only slow ring.
11907 */
11908 status = (work_ha_copy &
11909 (HA_RXMASK << (4*LPFC_ELS_RING)));
11910 status >>= (4*LPFC_ELS_RING);
11911 if (status & HA_RXMASK) {
James Smart5b75da22008-12-04 22:39:35 -050011912 spin_lock_irqsave(&phba->hbalock, iflag);
James Smart9940b972011-03-11 16:06:12 -050011913 if (lpfc_readl(phba->HCregaddr, &control))
11914 goto unplug_error;
James Smarta58cbd52007-08-02 11:09:43 -040011915
11916 lpfc_debugfs_slow_ring_trc(phba,
11917 "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
11918 control, status,
11919 (uint32_t)phba->sli.slistat.sli_intr);
11920
James Smart858c9f62007-06-17 19:56:39 -050011921 if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) {
James Smarta58cbd52007-08-02 11:09:43 -040011922 lpfc_debugfs_slow_ring_trc(phba,
11923 "ISR Disable ring:"
11924 "pwork:x%x hawork:x%x wait:x%x",
11925 phba->work_ha, work_ha_copy,
11926 (uint32_t)((unsigned long)
James Smart5e9d9b82008-06-14 22:52:53 -040011927 &phba->work_waitq));
James Smarta58cbd52007-08-02 11:09:43 -040011928
James Smart858c9f62007-06-17 19:56:39 -050011929 control &=
11930 ~(HC_R0INT_ENA << LPFC_ELS_RING);
dea31012005-04-17 16:05:31 -050011931 writel(control, phba->HCregaddr);
11932 readl(phba->HCregaddr); /* flush */
dea31012005-04-17 16:05:31 -050011933 }
James Smarta58cbd52007-08-02 11:09:43 -040011934 else {
11935 lpfc_debugfs_slow_ring_trc(phba,
11936 "ISR slow ring: pwork:"
11937 "x%x hawork:x%x wait:x%x",
11938 phba->work_ha, work_ha_copy,
11939 (uint32_t)((unsigned long)
James Smart5e9d9b82008-06-14 22:52:53 -040011940 &phba->work_waitq));
James Smarta58cbd52007-08-02 11:09:43 -040011941 }
James Smart5b75da22008-12-04 22:39:35 -050011942 spin_unlock_irqrestore(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -050011943 }
11944 }
James Smart5b75da22008-12-04 22:39:35 -050011945 spin_lock_irqsave(&phba->hbalock, iflag);
James Smarta257bf92009-04-06 18:48:10 -040011946 if (work_ha_copy & HA_ERATT) {
James Smart9940b972011-03-11 16:06:12 -050011947 if (lpfc_sli_read_hs(phba))
11948 goto unplug_error;
James Smarta257bf92009-04-06 18:48:10 -040011949 /*
11950 * Check if there is a deferred error condition
11951 * is active
11952 */
11953 if ((HS_FFER1 & phba->work_hs) &&
11954 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
James Smartdcf2a4e2010-09-29 11:18:53 -040011955 HS_FFER6 | HS_FFER7 | HS_FFER8) &
11956 phba->work_hs)) {
James Smarta257bf92009-04-06 18:48:10 -040011957 phba->hba_flag |= DEFER_ERATT;
11958 /* Clear all interrupt enable conditions */
11959 writel(0, phba->HCregaddr);
11960 readl(phba->HCregaddr);
11961 }
11962 }
11963
James Smart93996272008-08-24 21:50:30 -040011964 if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) {
James Smart92d7f7b2007-06-17 19:56:38 -050011965 pmb = phba->sli.mbox_active;
James Smart04c68492009-05-22 14:52:52 -040011966 pmbox = &pmb->u.mb;
James Smart34b02dc2008-08-24 21:49:55 -040011967 mbox = phba->mbox;
James Smart858c9f62007-06-17 19:56:39 -050011968 vport = pmb->vport;
James Smart92d7f7b2007-06-17 19:56:38 -050011969
11970 /* First check out the status word */
11971 lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t));
11972 if (pmbox->mbxOwner != OWN_HOST) {
James Smart5b75da22008-12-04 22:39:35 -050011973 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart92d7f7b2007-06-17 19:56:38 -050011974 /*
11975 * Stray Mailbox Interrupt, mbxCommand <cmd>
11976 * mbxStatus <status>
11977 */
James Smart09372822008-01-11 01:52:54 -050011978 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
James Smart92d7f7b2007-06-17 19:56:38 -050011979 LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -040011980 "(%d):0304 Stray Mailbox "
James Smart92d7f7b2007-06-17 19:56:38 -050011981 "Interrupt mbxCommand x%x "
11982 "mbxStatus x%x\n",
James Smarte8b62012007-08-02 11:10:09 -040011983 (vport ? vport->vpi : 0),
James Smart92d7f7b2007-06-17 19:56:38 -050011984 pmbox->mbxCommand,
11985 pmbox->mbxStatus);
James Smart09372822008-01-11 01:52:54 -050011986 /* clear mailbox attention bit */
11987 work_ha_copy &= ~HA_MBATT;
11988 } else {
James Smart97eab632008-04-07 10:16:05 -040011989 phba->sli.mbox_active = NULL;
James Smart5b75da22008-12-04 22:39:35 -050011990 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart09372822008-01-11 01:52:54 -050011991 phba->last_completion_time = jiffies;
11992 del_timer(&phba->sli.mbox_tmo);
James Smart09372822008-01-11 01:52:54 -050011993 if (pmb->mbox_cmpl) {
11994 lpfc_sli_pcimem_bcopy(mbox, pmbox,
11995 MAILBOX_CMD_SIZE);
James Smart7a470272010-03-15 11:25:20 -040011996 if (pmb->out_ext_byte_len &&
11997 pmb->context2)
11998 lpfc_sli_pcimem_bcopy(
11999 phba->mbox_ext,
12000 pmb->context2,
12001 pmb->out_ext_byte_len);
James Smart858c9f62007-06-17 19:56:39 -050012002 }
James Smart09372822008-01-11 01:52:54 -050012003 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
12004 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
12005
12006 lpfc_debugfs_disc_trc(vport,
12007 LPFC_DISC_TRC_MBOX_VPORT,
12008 "MBOX dflt rpi: : "
12009 "status:x%x rpi:x%x",
12010 (uint32_t)pmbox->mbxStatus,
12011 pmbox->un.varWords[0], 0);
12012
12013 if (!pmbox->mbxStatus) {
12014 mp = (struct lpfc_dmabuf *)
12015 (pmb->context1);
12016 ndlp = (struct lpfc_nodelist *)
12017 pmb->context2;
12018
12019 /* Reg_LOGIN of dflt RPI was
12020 * successful. new lets get
12021 * rid of the RPI using the
12022 * same mbox buffer.
12023 */
12024 lpfc_unreg_login(phba,
12025 vport->vpi,
12026 pmbox->un.varWords[0],
12027 pmb);
12028 pmb->mbox_cmpl =
12029 lpfc_mbx_cmpl_dflt_rpi;
12030 pmb->context1 = mp;
12031 pmb->context2 = ndlp;
12032 pmb->vport = vport;
James Smart58da1ff2008-04-07 10:15:56 -040012033 rc = lpfc_sli_issue_mbox(phba,
12034 pmb,
12035 MBX_NOWAIT);
12036 if (rc != MBX_BUSY)
12037 lpfc_printf_log(phba,
12038 KERN_ERR,
12039 LOG_MBOX | LOG_SLI,
James Smartd7c255b2008-08-24 21:50:00 -040012040 "0350 rc should have"
James Smart6a9c52c2009-10-02 15:16:51 -040012041 "been MBX_BUSY\n");
James Smart3772a992009-05-22 14:50:54 -040012042 if (rc != MBX_NOT_FINISHED)
12043 goto send_current_mbox;
James Smart09372822008-01-11 01:52:54 -050012044 }
12045 }
James Smart5b75da22008-12-04 22:39:35 -050012046 spin_lock_irqsave(
12047 &phba->pport->work_port_lock,
12048 iflag);
James Smart09372822008-01-11 01:52:54 -050012049 phba->pport->work_port_events &=
12050 ~WORKER_MBOX_TMO;
James Smart5b75da22008-12-04 22:39:35 -050012051 spin_unlock_irqrestore(
12052 &phba->pport->work_port_lock,
12053 iflag);
James Smart09372822008-01-11 01:52:54 -050012054 lpfc_mbox_cmpl_put(phba, pmb);
James Smart858c9f62007-06-17 19:56:39 -050012055 }
James Smart97eab632008-04-07 10:16:05 -040012056 } else
James Smart5b75da22008-12-04 22:39:35 -050012057 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart93996272008-08-24 21:50:30 -040012058
James Smart92d7f7b2007-06-17 19:56:38 -050012059 if ((work_ha_copy & HA_MBATT) &&
12060 (phba->sli.mbox_active == NULL)) {
James Smart858c9f62007-06-17 19:56:39 -050012061send_current_mbox:
James Smart92d7f7b2007-06-17 19:56:38 -050012062 /* Process next mailbox command if there is one */
James Smart58da1ff2008-04-07 10:15:56 -040012063 do {
12064 rc = lpfc_sli_issue_mbox(phba, NULL,
12065 MBX_NOWAIT);
12066 } while (rc == MBX_NOT_FINISHED);
12067 if (rc != MBX_SUCCESS)
12068 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
12069 LOG_SLI, "0349 rc should be "
James Smart6a9c52c2009-10-02 15:16:51 -040012070 "MBX_SUCCESS\n");
James Smart92d7f7b2007-06-17 19:56:38 -050012071 }
12072
James Smart5b75da22008-12-04 22:39:35 -050012073 spin_lock_irqsave(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -050012074 phba->work_ha |= work_ha_copy;
James Smart5b75da22008-12-04 22:39:35 -050012075 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart5e9d9b82008-06-14 22:52:53 -040012076 lpfc_worker_wake_up(phba);
dea31012005-04-17 16:05:31 -050012077 }
James Smart93996272008-08-24 21:50:30 -040012078 return IRQ_HANDLED;
James Smart9940b972011-03-11 16:06:12 -050012079unplug_error:
12080 spin_unlock_irqrestore(&phba->hbalock, iflag);
12081 return IRQ_HANDLED;
dea31012005-04-17 16:05:31 -050012082
James Smart3772a992009-05-22 14:50:54 -040012083} /* lpfc_sli_sp_intr_handler */
James Smart93996272008-08-24 21:50:30 -040012084
12085/**
James Smart3772a992009-05-22 14:50:54 -040012086 * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
James Smart93996272008-08-24 21:50:30 -040012087 * @irq: Interrupt number.
12088 * @dev_id: The device context pointer.
12089 *
12090 * This function is directly called from the PCI layer as an interrupt
James Smart3772a992009-05-22 14:50:54 -040012091 * service routine when device with SLI-3 interface spec is enabled with
12092 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
12093 * ring event in the HBA. However, when the device is enabled with either
12094 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
12095 * device-level interrupt handler. When the PCI slot is in error recovery
12096 * or the HBA is undergoing initialization, the interrupt handler will not
12097 * process the interrupt. The SCSI FCP fast-path ring event are handled in
12098 * the intrrupt context. This function is called without any lock held.
12099 * It gets the hbalock to access and update SLI data structures.
James Smart93996272008-08-24 21:50:30 -040012100 *
12101 * This function returns IRQ_HANDLED when interrupt is handled else it
12102 * returns IRQ_NONE.
12103 **/
12104irqreturn_t
James Smart3772a992009-05-22 14:50:54 -040012105lpfc_sli_fp_intr_handler(int irq, void *dev_id)
James Smart93996272008-08-24 21:50:30 -040012106{
12107 struct lpfc_hba *phba;
12108 uint32_t ha_copy;
12109 unsigned long status;
James Smart5b75da22008-12-04 22:39:35 -050012110 unsigned long iflag;
James Smart895427b2017-02-12 13:52:30 -080012111 struct lpfc_sli_ring *pring;
James Smart93996272008-08-24 21:50:30 -040012112
12113 /* Get the driver's phba structure from the dev_id and
12114 * assume the HBA is not interrupting.
12115 */
12116 phba = (struct lpfc_hba *) dev_id;
12117
12118 if (unlikely(!phba))
12119 return IRQ_NONE;
dea31012005-04-17 16:05:31 -050012120
12121 /*
James Smart93996272008-08-24 21:50:30 -040012122 * Stuff needs to be attented to when this function is invoked as an
12123 * individual interrupt handler in MSI-X multi-message interrupt mode
dea31012005-04-17 16:05:31 -050012124 */
James Smart93996272008-08-24 21:50:30 -040012125 if (phba->intr_type == MSIX) {
James Smart3772a992009-05-22 14:50:54 -040012126 /* Check device state for handling interrupt */
12127 if (lpfc_intr_state_check(phba))
James Smart93996272008-08-24 21:50:30 -040012128 return IRQ_NONE;
12129 /* Need to read HA REG for FCP ring and other ring events */
James Smart9940b972011-03-11 16:06:12 -050012130 if (lpfc_readl(phba->HAregaddr, &ha_copy))
12131 return IRQ_HANDLED;
James Smart93996272008-08-24 21:50:30 -040012132 /* Clear up only attention source related to fast-path */
James Smart5b75da22008-12-04 22:39:35 -050012133 spin_lock_irqsave(&phba->hbalock, iflag);
James Smarta257bf92009-04-06 18:48:10 -040012134 /*
12135 * If there is deferred error attention, do not check for
12136 * any interrupt.
12137 */
12138 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
James Smart3772a992009-05-22 14:50:54 -040012139 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smarta257bf92009-04-06 18:48:10 -040012140 return IRQ_NONE;
12141 }
James Smart93996272008-08-24 21:50:30 -040012142 writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)),
12143 phba->HAregaddr);
12144 readl(phba->HAregaddr); /* flush */
James Smart5b75da22008-12-04 22:39:35 -050012145 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart93996272008-08-24 21:50:30 -040012146 } else
12147 ha_copy = phba->ha_copy;
12148
12149 /*
12150 * Process all events on FCP ring. Take the optimized path for FCP IO.
12151 */
12152 ha_copy &= ~(phba->work_ha_mask);
12153
12154 status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
dea31012005-04-17 16:05:31 -050012155 status >>= (4*LPFC_FCP_RING);
James Smart895427b2017-02-12 13:52:30 -080012156 pring = &phba->sli.sli3_ring[LPFC_FCP_RING];
James Smart858c9f62007-06-17 19:56:39 -050012157 if (status & HA_RXMASK)
James Smart895427b2017-02-12 13:52:30 -080012158 lpfc_sli_handle_fast_ring_event(phba, pring, status);
James Smarta4bc3372006-12-02 13:34:16 -050012159
12160 if (phba->cfg_multi_ring_support == 2) {
12161 /*
James Smart93996272008-08-24 21:50:30 -040012162 * Process all events on extra ring. Take the optimized path
12163 * for extra ring IO.
James Smarta4bc3372006-12-02 13:34:16 -050012164 */
James Smart93996272008-08-24 21:50:30 -040012165 status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
James Smarta4bc3372006-12-02 13:34:16 -050012166 status >>= (4*LPFC_EXTRA_RING);
James Smart858c9f62007-06-17 19:56:39 -050012167 if (status & HA_RXMASK) {
James Smarta4bc3372006-12-02 13:34:16 -050012168 lpfc_sli_handle_fast_ring_event(phba,
James Smart895427b2017-02-12 13:52:30 -080012169 &phba->sli.sli3_ring[LPFC_EXTRA_RING],
James Smarta4bc3372006-12-02 13:34:16 -050012170 status);
12171 }
12172 }
dea31012005-04-17 16:05:31 -050012173 return IRQ_HANDLED;
James Smart3772a992009-05-22 14:50:54 -040012174} /* lpfc_sli_fp_intr_handler */
dea31012005-04-17 16:05:31 -050012175
James Smart93996272008-08-24 21:50:30 -040012176/**
James Smart3772a992009-05-22 14:50:54 -040012177 * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
James Smart93996272008-08-24 21:50:30 -040012178 * @irq: Interrupt number.
12179 * @dev_id: The device context pointer.
12180 *
James Smart3772a992009-05-22 14:50:54 -040012181 * This function is the HBA device-level interrupt handler to device with
12182 * SLI-3 interface spec, called from the PCI layer when either MSI or
12183 * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
12184 * requires driver attention. This function invokes the slow-path interrupt
12185 * attention handling function and fast-path interrupt attention handling
12186 * function in turn to process the relevant HBA attention events. This
12187 * function is called without any lock held. It gets the hbalock to access
12188 * and update SLI data structures.
James Smart93996272008-08-24 21:50:30 -040012189 *
12190 * This function returns IRQ_HANDLED when interrupt is handled, else it
12191 * returns IRQ_NONE.
12192 **/
12193irqreturn_t
James Smart3772a992009-05-22 14:50:54 -040012194lpfc_sli_intr_handler(int irq, void *dev_id)
James Smart93996272008-08-24 21:50:30 -040012195{
12196 struct lpfc_hba *phba;
12197 irqreturn_t sp_irq_rc, fp_irq_rc;
12198 unsigned long status1, status2;
James Smarta747c9c2009-11-18 15:41:10 -050012199 uint32_t hc_copy;
James Smart93996272008-08-24 21:50:30 -040012200
12201 /*
12202 * Get the driver's phba structure from the dev_id and
12203 * assume the HBA is not interrupting.
12204 */
12205 phba = (struct lpfc_hba *) dev_id;
12206
12207 if (unlikely(!phba))
12208 return IRQ_NONE;
12209
James Smart3772a992009-05-22 14:50:54 -040012210 /* Check device state for handling interrupt */
12211 if (lpfc_intr_state_check(phba))
James Smart93996272008-08-24 21:50:30 -040012212 return IRQ_NONE;
12213
12214 spin_lock(&phba->hbalock);
James Smart9940b972011-03-11 16:06:12 -050012215 if (lpfc_readl(phba->HAregaddr, &phba->ha_copy)) {
12216 spin_unlock(&phba->hbalock);
12217 return IRQ_HANDLED;
12218 }
12219
James Smart93996272008-08-24 21:50:30 -040012220 if (unlikely(!phba->ha_copy)) {
12221 spin_unlock(&phba->hbalock);
12222 return IRQ_NONE;
12223 } else if (phba->ha_copy & HA_ERATT) {
12224 if (phba->hba_flag & HBA_ERATT_HANDLED)
12225 /* ERATT polling has handled ERATT */
12226 phba->ha_copy &= ~HA_ERATT;
12227 else
12228 /* Indicate interrupt handler handles ERATT */
12229 phba->hba_flag |= HBA_ERATT_HANDLED;
12230 }
12231
James Smarta257bf92009-04-06 18:48:10 -040012232 /*
12233 * If there is deferred error attention, do not check for any interrupt.
12234 */
12235 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
Dan Carpenterec21b3b2010-08-08 00:15:17 +020012236 spin_unlock(&phba->hbalock);
James Smarta257bf92009-04-06 18:48:10 -040012237 return IRQ_NONE;
12238 }
12239
James Smart93996272008-08-24 21:50:30 -040012240 /* Clear attention sources except link and error attentions */
James Smart9940b972011-03-11 16:06:12 -050012241 if (lpfc_readl(phba->HCregaddr, &hc_copy)) {
12242 spin_unlock(&phba->hbalock);
12243 return IRQ_HANDLED;
12244 }
James Smarta747c9c2009-11-18 15:41:10 -050012245 writel(hc_copy & ~(HC_MBINT_ENA | HC_R0INT_ENA | HC_R1INT_ENA
12246 | HC_R2INT_ENA | HC_LAINT_ENA | HC_ERINT_ENA),
12247 phba->HCregaddr);
James Smart93996272008-08-24 21:50:30 -040012248 writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
James Smarta747c9c2009-11-18 15:41:10 -050012249 writel(hc_copy, phba->HCregaddr);
James Smart93996272008-08-24 21:50:30 -040012250 readl(phba->HAregaddr); /* flush */
12251 spin_unlock(&phba->hbalock);
12252
12253 /*
12254 * Invokes slow-path host attention interrupt handling as appropriate.
12255 */
12256
12257 /* status of events with mailbox and link attention */
12258 status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT);
12259
12260 /* status of events with ELS ring */
12261 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
12262 status2 >>= (4*LPFC_ELS_RING);
12263
12264 if (status1 || (status2 & HA_RXMASK))
James Smart3772a992009-05-22 14:50:54 -040012265 sp_irq_rc = lpfc_sli_sp_intr_handler(irq, dev_id);
James Smart93996272008-08-24 21:50:30 -040012266 else
12267 sp_irq_rc = IRQ_NONE;
12268
12269 /*
12270 * Invoke fast-path host attention interrupt handling as appropriate.
12271 */
12272
12273 /* status of events with FCP ring */
12274 status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
12275 status1 >>= (4*LPFC_FCP_RING);
12276
12277 /* status of events with extra ring */
12278 if (phba->cfg_multi_ring_support == 2) {
12279 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
12280 status2 >>= (4*LPFC_EXTRA_RING);
12281 } else
12282 status2 = 0;
12283
12284 if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK))
James Smart3772a992009-05-22 14:50:54 -040012285 fp_irq_rc = lpfc_sli_fp_intr_handler(irq, dev_id);
James Smart93996272008-08-24 21:50:30 -040012286 else
12287 fp_irq_rc = IRQ_NONE;
12288
12289 /* Return device-level interrupt handling status */
12290 return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc;
James Smart3772a992009-05-22 14:50:54 -040012291} /* lpfc_sli_intr_handler */
James Smart4f774512009-05-22 14:52:35 -040012292
12293/**
12294 * lpfc_sli4_fcp_xri_abort_event_proc - Process fcp xri abort event
12295 * @phba: pointer to lpfc hba data structure.
12296 *
12297 * This routine is invoked by the worker thread to process all the pending
12298 * SLI4 FCP abort XRI events.
12299 **/
12300void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *phba)
12301{
12302 struct lpfc_cq_event *cq_event;
12303
12304 /* First, declare the fcp xri abort event has been handled */
12305 spin_lock_irq(&phba->hbalock);
12306 phba->hba_flag &= ~FCP_XRI_ABORT_EVENT;
12307 spin_unlock_irq(&phba->hbalock);
12308 /* Now, handle all the fcp xri abort events */
12309 while (!list_empty(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue)) {
12310 /* Get the first event from the head of the event queue */
12311 spin_lock_irq(&phba->hbalock);
12312 list_remove_head(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
12313 cq_event, struct lpfc_cq_event, list);
12314 spin_unlock_irq(&phba->hbalock);
12315 /* Notify aborted XRI for FCP work queue */
12316 lpfc_sli4_fcp_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
12317 /* Free the event processed back to the free pool */
12318 lpfc_sli4_cq_event_release(phba, cq_event);
12319 }
12320}
12321
12322/**
James Smart318083a2017-03-04 09:30:30 -080012323 * lpfc_sli4_nvme_xri_abort_event_proc - Process nvme xri abort event
12324 * @phba: pointer to lpfc hba data structure.
12325 *
12326 * This routine is invoked by the worker thread to process all the pending
12327 * SLI4 NVME abort XRI events.
12328 **/
12329void lpfc_sli4_nvme_xri_abort_event_proc(struct lpfc_hba *phba)
12330{
12331 struct lpfc_cq_event *cq_event;
12332
12333 /* First, declare the fcp xri abort event has been handled */
12334 spin_lock_irq(&phba->hbalock);
12335 phba->hba_flag &= ~NVME_XRI_ABORT_EVENT;
12336 spin_unlock_irq(&phba->hbalock);
12337 /* Now, handle all the fcp xri abort events */
12338 while (!list_empty(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue)) {
12339 /* Get the first event from the head of the event queue */
12340 spin_lock_irq(&phba->hbalock);
12341 list_remove_head(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue,
12342 cq_event, struct lpfc_cq_event, list);
12343 spin_unlock_irq(&phba->hbalock);
12344 /* Notify aborted XRI for NVME work queue */
12345 if (phba->nvmet_support) {
12346 lpfc_sli4_nvmet_xri_aborted(phba,
12347 &cq_event->cqe.wcqe_axri);
12348 } else {
12349 lpfc_sli4_nvme_xri_aborted(phba,
12350 &cq_event->cqe.wcqe_axri);
12351 }
12352 /* Free the event processed back to the free pool */
12353 lpfc_sli4_cq_event_release(phba, cq_event);
12354 }
12355}
12356
12357/**
James Smart4f774512009-05-22 14:52:35 -040012358 * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
12359 * @phba: pointer to lpfc hba data structure.
12360 *
12361 * This routine is invoked by the worker thread to process all the pending
12362 * SLI4 els abort xri events.
12363 **/
12364void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *phba)
12365{
12366 struct lpfc_cq_event *cq_event;
12367
12368 /* First, declare the els xri abort event has been handled */
12369 spin_lock_irq(&phba->hbalock);
12370 phba->hba_flag &= ~ELS_XRI_ABORT_EVENT;
12371 spin_unlock_irq(&phba->hbalock);
12372 /* Now, handle all the els xri abort events */
12373 while (!list_empty(&phba->sli4_hba.sp_els_xri_aborted_work_queue)) {
12374 /* Get the first event from the head of the event queue */
12375 spin_lock_irq(&phba->hbalock);
12376 list_remove_head(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
12377 cq_event, struct lpfc_cq_event, list);
12378 spin_unlock_irq(&phba->hbalock);
12379 /* Notify aborted XRI for ELS work queue */
12380 lpfc_sli4_els_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
12381 /* Free the event processed back to the free pool */
12382 lpfc_sli4_cq_event_release(phba, cq_event);
12383 }
12384}
12385
James Smart341af102010-01-26 23:07:37 -050012386/**
12387 * lpfc_sli4_iocb_param_transfer - Transfer pIocbOut and cmpl status to pIocbIn
12388 * @phba: pointer to lpfc hba data structure
12389 * @pIocbIn: pointer to the rspiocbq
12390 * @pIocbOut: pointer to the cmdiocbq
12391 * @wcqe: pointer to the complete wcqe
12392 *
12393 * This routine transfers the fields of a command iocbq to a response iocbq
12394 * by copying all the IOCB fields from command iocbq and transferring the
12395 * completion status information from the complete wcqe.
12396 **/
James Smart4f774512009-05-22 14:52:35 -040012397static void
James Smart341af102010-01-26 23:07:37 -050012398lpfc_sli4_iocb_param_transfer(struct lpfc_hba *phba,
12399 struct lpfc_iocbq *pIocbIn,
James Smart4f774512009-05-22 14:52:35 -040012400 struct lpfc_iocbq *pIocbOut,
12401 struct lpfc_wcqe_complete *wcqe)
12402{
James Smartaf227412013-10-10 12:23:10 -040012403 int numBdes, i;
James Smart341af102010-01-26 23:07:37 -050012404 unsigned long iflags;
James Smartaf227412013-10-10 12:23:10 -040012405 uint32_t status, max_response;
12406 struct lpfc_dmabuf *dmabuf;
12407 struct ulp_bde64 *bpl, bde;
James Smart4f774512009-05-22 14:52:35 -040012408 size_t offset = offsetof(struct lpfc_iocbq, iocb);
12409
12410 memcpy((char *)pIocbIn + offset, (char *)pIocbOut + offset,
12411 sizeof(struct lpfc_iocbq) - offset);
James Smart4f774512009-05-22 14:52:35 -040012412 /* Map WCQE parameters into irspiocb parameters */
James Smartacd68592012-01-18 16:25:09 -050012413 status = bf_get(lpfc_wcqe_c_status, wcqe);
12414 pIocbIn->iocb.ulpStatus = (status & LPFC_IOCB_STATUS_MASK);
James Smart4f774512009-05-22 14:52:35 -040012415 if (pIocbOut->iocb_flag & LPFC_IO_FCP)
12416 if (pIocbIn->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR)
12417 pIocbIn->iocb.un.fcpi.fcpi_parm =
12418 pIocbOut->iocb.un.fcpi.fcpi_parm -
12419 wcqe->total_data_placed;
12420 else
12421 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
James Smart695a8142010-01-26 23:08:03 -050012422 else {
James Smart4f774512009-05-22 14:52:35 -040012423 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
James Smartaf227412013-10-10 12:23:10 -040012424 switch (pIocbOut->iocb.ulpCommand) {
12425 case CMD_ELS_REQUEST64_CR:
12426 dmabuf = (struct lpfc_dmabuf *)pIocbOut->context3;
12427 bpl = (struct ulp_bde64 *)dmabuf->virt;
12428 bde.tus.w = le32_to_cpu(bpl[1].tus.w);
12429 max_response = bde.tus.f.bdeSize;
12430 break;
12431 case CMD_GEN_REQUEST64_CR:
12432 max_response = 0;
12433 if (!pIocbOut->context3)
12434 break;
12435 numBdes = pIocbOut->iocb.un.genreq64.bdl.bdeSize/
12436 sizeof(struct ulp_bde64);
12437 dmabuf = (struct lpfc_dmabuf *)pIocbOut->context3;
12438 bpl = (struct ulp_bde64 *)dmabuf->virt;
12439 for (i = 0; i < numBdes; i++) {
12440 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
12441 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
12442 max_response += bde.tus.f.bdeSize;
12443 }
12444 break;
12445 default:
12446 max_response = wcqe->total_data_placed;
12447 break;
12448 }
12449 if (max_response < wcqe->total_data_placed)
12450 pIocbIn->iocb.un.genreq64.bdl.bdeSize = max_response;
12451 else
12452 pIocbIn->iocb.un.genreq64.bdl.bdeSize =
12453 wcqe->total_data_placed;
James Smart695a8142010-01-26 23:08:03 -050012454 }
James Smart341af102010-01-26 23:07:37 -050012455
James Smartacd68592012-01-18 16:25:09 -050012456 /* Convert BG errors for completion status */
12457 if (status == CQE_STATUS_DI_ERROR) {
12458 pIocbIn->iocb.ulpStatus = IOSTAT_LOCAL_REJECT;
12459
12460 if (bf_get(lpfc_wcqe_c_bg_edir, wcqe))
12461 pIocbIn->iocb.un.ulpWord[4] = IOERR_RX_DMA_FAILED;
12462 else
12463 pIocbIn->iocb.un.ulpWord[4] = IOERR_TX_DMA_FAILED;
12464
12465 pIocbIn->iocb.unsli3.sli3_bg.bgstat = 0;
12466 if (bf_get(lpfc_wcqe_c_bg_ge, wcqe)) /* Guard Check failed */
12467 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
12468 BGS_GUARD_ERR_MASK;
12469 if (bf_get(lpfc_wcqe_c_bg_ae, wcqe)) /* App Tag Check failed */
12470 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
12471 BGS_APPTAG_ERR_MASK;
12472 if (bf_get(lpfc_wcqe_c_bg_re, wcqe)) /* Ref Tag Check failed */
12473 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
12474 BGS_REFTAG_ERR_MASK;
12475
12476 /* Check to see if there was any good data before the error */
12477 if (bf_get(lpfc_wcqe_c_bg_tdpv, wcqe)) {
12478 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
12479 BGS_HI_WATER_MARK_PRESENT_MASK;
12480 pIocbIn->iocb.unsli3.sli3_bg.bghm =
12481 wcqe->total_data_placed;
12482 }
12483
12484 /*
12485 * Set ALL the error bits to indicate we don't know what
12486 * type of error it is.
12487 */
12488 if (!pIocbIn->iocb.unsli3.sli3_bg.bgstat)
12489 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
12490 (BGS_REFTAG_ERR_MASK | BGS_APPTAG_ERR_MASK |
12491 BGS_GUARD_ERR_MASK);
12492 }
12493
James Smart341af102010-01-26 23:07:37 -050012494 /* Pick up HBA exchange busy condition */
12495 if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
12496 spin_lock_irqsave(&phba->hbalock, iflags);
12497 pIocbIn->iocb_flag |= LPFC_EXCHANGE_BUSY;
12498 spin_unlock_irqrestore(&phba->hbalock, iflags);
12499 }
James Smart4f774512009-05-22 14:52:35 -040012500}
12501
12502/**
James Smart45ed1192009-10-02 15:17:02 -040012503 * lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe
12504 * @phba: Pointer to HBA context object.
12505 * @wcqe: Pointer to work-queue completion queue entry.
12506 *
12507 * This routine handles an ELS work-queue completion event and construct
12508 * a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common
12509 * discovery engine to handle.
12510 *
12511 * Return: Pointer to the receive IOCBQ, NULL otherwise.
12512 **/
12513static struct lpfc_iocbq *
12514lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *phba,
12515 struct lpfc_iocbq *irspiocbq)
12516{
James Smart895427b2017-02-12 13:52:30 -080012517 struct lpfc_sli_ring *pring;
James Smart45ed1192009-10-02 15:17:02 -040012518 struct lpfc_iocbq *cmdiocbq;
12519 struct lpfc_wcqe_complete *wcqe;
12520 unsigned long iflags;
12521
James Smart895427b2017-02-12 13:52:30 -080012522 pring = lpfc_phba_elsring(phba);
Dick Kennedy27b13132017-09-29 17:34:29 -070012523 if (unlikely(!pring))
12524 return NULL;
James Smart895427b2017-02-12 13:52:30 -080012525
James Smart45ed1192009-10-02 15:17:02 -040012526 wcqe = &irspiocbq->cq_event.cqe.wcqe_cmpl;
James Smart7e56aa22012-08-03 12:35:34 -040012527 spin_lock_irqsave(&pring->ring_lock, iflags);
James Smart45ed1192009-10-02 15:17:02 -040012528 pring->stats.iocb_event++;
12529 /* Look up the ELS command IOCB and create pseudo response IOCB */
12530 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
12531 bf_get(lpfc_wcqe_c_request_tag, wcqe));
James Smart45ed1192009-10-02 15:17:02 -040012532 if (unlikely(!cmdiocbq)) {
Dick Kennedy6d697652017-09-29 17:34:28 -070012533 spin_unlock_irqrestore(&pring->ring_lock, iflags);
James Smart45ed1192009-10-02 15:17:02 -040012534 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12535 "0386 ELS complete with no corresponding "
Dick Kennedy6d697652017-09-29 17:34:28 -070012536 "cmdiocb: 0x%x 0x%x 0x%x 0x%x\n",
12537 wcqe->word0, wcqe->total_data_placed,
12538 wcqe->parameter, wcqe->word3);
James Smart45ed1192009-10-02 15:17:02 -040012539 lpfc_sli_release_iocbq(phba, irspiocbq);
12540 return NULL;
12541 }
12542
Dick Kennedy6d697652017-09-29 17:34:28 -070012543 /* Put the iocb back on the txcmplq */
12544 lpfc_sli_ringtxcmpl_put(phba, pring, cmdiocbq);
12545 spin_unlock_irqrestore(&pring->ring_lock, iflags);
12546
James Smart45ed1192009-10-02 15:17:02 -040012547 /* Fake the irspiocbq and copy necessary response information */
James Smart341af102010-01-26 23:07:37 -050012548 lpfc_sli4_iocb_param_transfer(phba, irspiocbq, cmdiocbq, wcqe);
James Smart45ed1192009-10-02 15:17:02 -040012549
12550 return irspiocbq;
12551}
12552
12553/**
James Smart04c68492009-05-22 14:52:52 -040012554 * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event
12555 * @phba: Pointer to HBA context object.
12556 * @cqe: Pointer to mailbox completion queue entry.
12557 *
12558 * This routine process a mailbox completion queue entry with asynchrous
12559 * event.
12560 *
12561 * Return: true if work posted to worker thread, otherwise false.
12562 **/
12563static bool
12564lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
12565{
12566 struct lpfc_cq_event *cq_event;
12567 unsigned long iflags;
12568
12569 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
12570 "0392 Async Event: word0:x%x, word1:x%x, "
12571 "word2:x%x, word3:x%x\n", mcqe->word0,
12572 mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer);
12573
12574 /* Allocate a new internal CQ_EVENT entry */
12575 cq_event = lpfc_sli4_cq_event_alloc(phba);
12576 if (!cq_event) {
12577 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12578 "0394 Failed to allocate CQ_EVENT entry\n");
12579 return false;
12580 }
12581
12582 /* Move the CQE into an asynchronous event entry */
12583 memcpy(&cq_event->cqe, mcqe, sizeof(struct lpfc_mcqe));
12584 spin_lock_irqsave(&phba->hbalock, iflags);
12585 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue);
12586 /* Set the async event flag */
12587 phba->hba_flag |= ASYNC_EVENT;
12588 spin_unlock_irqrestore(&phba->hbalock, iflags);
12589
12590 return true;
12591}
12592
12593/**
12594 * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
12595 * @phba: Pointer to HBA context object.
12596 * @cqe: Pointer to mailbox completion queue entry.
12597 *
12598 * This routine process a mailbox completion queue entry with mailbox
12599 * completion event.
12600 *
12601 * Return: true if work posted to worker thread, otherwise false.
12602 **/
12603static bool
12604lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
12605{
12606 uint32_t mcqe_status;
12607 MAILBOX_t *mbox, *pmbox;
12608 struct lpfc_mqe *mqe;
12609 struct lpfc_vport *vport;
12610 struct lpfc_nodelist *ndlp;
12611 struct lpfc_dmabuf *mp;
12612 unsigned long iflags;
12613 LPFC_MBOXQ_t *pmb;
12614 bool workposted = false;
12615 int rc;
12616
12617 /* If not a mailbox complete MCQE, out by checking mailbox consume */
12618 if (!bf_get(lpfc_trailer_completed, mcqe))
12619 goto out_no_mqe_complete;
12620
12621 /* Get the reference to the active mbox command */
12622 spin_lock_irqsave(&phba->hbalock, iflags);
12623 pmb = phba->sli.mbox_active;
12624 if (unlikely(!pmb)) {
12625 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
12626 "1832 No pending MBOX command to handle\n");
12627 spin_unlock_irqrestore(&phba->hbalock, iflags);
12628 goto out_no_mqe_complete;
12629 }
12630 spin_unlock_irqrestore(&phba->hbalock, iflags);
12631 mqe = &pmb->u.mqe;
12632 pmbox = (MAILBOX_t *)&pmb->u.mqe;
12633 mbox = phba->mbox;
12634 vport = pmb->vport;
12635
12636 /* Reset heartbeat timer */
12637 phba->last_completion_time = jiffies;
12638 del_timer(&phba->sli.mbox_tmo);
12639
12640 /* Move mbox data to caller's mailbox region, do endian swapping */
12641 if (pmb->mbox_cmpl && mbox)
12642 lpfc_sli_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe));
James Smart04c68492009-05-22 14:52:52 -040012643
James Smart73d91e52011-10-10 21:32:10 -040012644 /*
12645 * For mcqe errors, conditionally move a modified error code to
12646 * the mbox so that the error will not be missed.
12647 */
12648 mcqe_status = bf_get(lpfc_mcqe_status, mcqe);
12649 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
12650 if (bf_get(lpfc_mqe_status, mqe) == MBX_SUCCESS)
12651 bf_set(lpfc_mqe_status, mqe,
12652 (LPFC_MBX_ERROR_RANGE | mcqe_status));
12653 }
James Smart04c68492009-05-22 14:52:52 -040012654 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
12655 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
12656 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT,
12657 "MBOX dflt rpi: status:x%x rpi:x%x",
12658 mcqe_status,
12659 pmbox->un.varWords[0], 0);
12660 if (mcqe_status == MB_CQE_STATUS_SUCCESS) {
12661 mp = (struct lpfc_dmabuf *)(pmb->context1);
12662 ndlp = (struct lpfc_nodelist *)pmb->context2;
12663 /* Reg_LOGIN of dflt RPI was successful. Now lets get
12664 * RID of the PPI using the same mbox buffer.
12665 */
12666 lpfc_unreg_login(phba, vport->vpi,
12667 pmbox->un.varWords[0], pmb);
12668 pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
12669 pmb->context1 = mp;
12670 pmb->context2 = ndlp;
12671 pmb->vport = vport;
12672 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
12673 if (rc != MBX_BUSY)
12674 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
12675 LOG_SLI, "0385 rc should "
12676 "have been MBX_BUSY\n");
12677 if (rc != MBX_NOT_FINISHED)
12678 goto send_current_mbox;
12679 }
12680 }
12681 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
12682 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
12683 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
12684
12685 /* There is mailbox completion work to do */
12686 spin_lock_irqsave(&phba->hbalock, iflags);
12687 __lpfc_mbox_cmpl_put(phba, pmb);
12688 phba->work_ha |= HA_MBATT;
12689 spin_unlock_irqrestore(&phba->hbalock, iflags);
12690 workposted = true;
12691
12692send_current_mbox:
12693 spin_lock_irqsave(&phba->hbalock, iflags);
12694 /* Release the mailbox command posting token */
12695 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
12696 /* Setting active mailbox pointer need to be in sync to flag clear */
12697 phba->sli.mbox_active = NULL;
12698 spin_unlock_irqrestore(&phba->hbalock, iflags);
12699 /* Wake up worker thread to post the next pending mailbox command */
12700 lpfc_worker_wake_up(phba);
12701out_no_mqe_complete:
12702 if (bf_get(lpfc_trailer_consumed, mcqe))
12703 lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
12704 return workposted;
12705}
12706
12707/**
12708 * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
12709 * @phba: Pointer to HBA context object.
12710 * @cqe: Pointer to mailbox completion queue entry.
12711 *
12712 * This routine process a mailbox completion queue entry, it invokes the
12713 * proper mailbox complete handling or asynchrous event handling routine
12714 * according to the MCQE's async bit.
12715 *
12716 * Return: true if work posted to worker thread, otherwise false.
12717 **/
12718static bool
12719lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe)
12720{
12721 struct lpfc_mcqe mcqe;
12722 bool workposted;
12723
12724 /* Copy the mailbox MCQE and convert endian order as needed */
12725 lpfc_sli_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe));
12726
12727 /* Invoke the proper event handling routine */
12728 if (!bf_get(lpfc_trailer_async, &mcqe))
12729 workposted = lpfc_sli4_sp_handle_mbox_event(phba, &mcqe);
12730 else
12731 workposted = lpfc_sli4_sp_handle_async_event(phba, &mcqe);
12732 return workposted;
12733}
12734
12735/**
James Smart4f774512009-05-22 14:52:35 -040012736 * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
12737 * @phba: Pointer to HBA context object.
James Smart2a76a282012-08-03 12:35:54 -040012738 * @cq: Pointer to associated CQ
James Smart4f774512009-05-22 14:52:35 -040012739 * @wcqe: Pointer to work-queue completion queue entry.
12740 *
12741 * This routine handles an ELS work-queue completion event.
12742 *
12743 * Return: true if work posted to worker thread, otherwise false.
12744 **/
12745static bool
James Smart2a76a282012-08-03 12:35:54 -040012746lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
James Smart4f774512009-05-22 14:52:35 -040012747 struct lpfc_wcqe_complete *wcqe)
12748{
James Smart4f774512009-05-22 14:52:35 -040012749 struct lpfc_iocbq *irspiocbq;
12750 unsigned long iflags;
James Smart2a76a282012-08-03 12:35:54 -040012751 struct lpfc_sli_ring *pring = cq->pring;
James Smart0e9bb8d2013-03-01 16:35:12 -050012752 int txq_cnt = 0;
12753 int txcmplq_cnt = 0;
12754 int fcp_txcmplq_cnt = 0;
James Smart4f774512009-05-22 14:52:35 -040012755
James Smart45ed1192009-10-02 15:17:02 -040012756 /* Get an irspiocbq for later ELS response processing use */
James Smart4f774512009-05-22 14:52:35 -040012757 irspiocbq = lpfc_sli_get_iocbq(phba);
12758 if (!irspiocbq) {
James Smart0e9bb8d2013-03-01 16:35:12 -050012759 if (!list_empty(&pring->txq))
12760 txq_cnt++;
12761 if (!list_empty(&pring->txcmplq))
12762 txcmplq_cnt++;
James Smart4f774512009-05-22 14:52:35 -040012763 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smart2a9bf3d2010-06-07 15:24:45 -040012764 "0387 NO IOCBQ data: txq_cnt=%d iocb_cnt=%d "
12765 "fcp_txcmplq_cnt=%d, els_txcmplq_cnt=%d\n",
James Smart0e9bb8d2013-03-01 16:35:12 -050012766 txq_cnt, phba->iocb_cnt,
12767 fcp_txcmplq_cnt,
12768 txcmplq_cnt);
James Smart45ed1192009-10-02 15:17:02 -040012769 return false;
James Smart4f774512009-05-22 14:52:35 -040012770 }
James Smart4f774512009-05-22 14:52:35 -040012771
James Smart45ed1192009-10-02 15:17:02 -040012772 /* Save off the slow-path queue event for work thread to process */
12773 memcpy(&irspiocbq->cq_event.cqe.wcqe_cmpl, wcqe, sizeof(*wcqe));
James Smart4f774512009-05-22 14:52:35 -040012774 spin_lock_irqsave(&phba->hbalock, iflags);
James Smart4d9ab992009-10-02 15:16:39 -040012775 list_add_tail(&irspiocbq->cq_event.list,
James Smart45ed1192009-10-02 15:17:02 -040012776 &phba->sli4_hba.sp_queue_event);
12777 phba->hba_flag |= HBA_SP_QUEUE_EVT;
James Smart4f774512009-05-22 14:52:35 -040012778 spin_unlock_irqrestore(&phba->hbalock, iflags);
James Smart4f774512009-05-22 14:52:35 -040012779
James Smart45ed1192009-10-02 15:17:02 -040012780 return true;
James Smart4f774512009-05-22 14:52:35 -040012781}
12782
12783/**
12784 * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
12785 * @phba: Pointer to HBA context object.
12786 * @wcqe: Pointer to work-queue completion queue entry.
12787 *
Masahiro Yamada3f8b6fb2017-02-27 14:29:25 -080012788 * This routine handles slow-path WQ entry consumed event by invoking the
James Smart4f774512009-05-22 14:52:35 -040012789 * proper WQ release routine to the slow-path WQ.
12790 **/
12791static void
12792lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba *phba,
12793 struct lpfc_wcqe_release *wcqe)
12794{
James Smart2e90f4b2011-12-13 13:22:37 -050012795 /* sanity check on queue memory */
12796 if (unlikely(!phba->sli4_hba.els_wq))
12797 return;
James Smart4f774512009-05-22 14:52:35 -040012798 /* Check for the slow-path ELS work queue */
12799 if (bf_get(lpfc_wcqe_r_wq_id, wcqe) == phba->sli4_hba.els_wq->queue_id)
12800 lpfc_sli4_wq_release(phba->sli4_hba.els_wq,
12801 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
12802 else
12803 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12804 "2579 Slow-path wqe consume event carries "
12805 "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
12806 bf_get(lpfc_wcqe_r_wqe_index, wcqe),
12807 phba->sli4_hba.els_wq->queue_id);
12808}
12809
12810/**
12811 * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
12812 * @phba: Pointer to HBA context object.
12813 * @cq: Pointer to a WQ completion queue.
12814 * @wcqe: Pointer to work-queue completion queue entry.
12815 *
12816 * This routine handles an XRI abort event.
12817 *
12818 * Return: true if work posted to worker thread, otherwise false.
12819 **/
12820static bool
12821lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba,
12822 struct lpfc_queue *cq,
12823 struct sli4_wcqe_xri_aborted *wcqe)
12824{
12825 bool workposted = false;
12826 struct lpfc_cq_event *cq_event;
12827 unsigned long iflags;
12828
12829 /* Allocate a new internal CQ_EVENT entry */
12830 cq_event = lpfc_sli4_cq_event_alloc(phba);
12831 if (!cq_event) {
12832 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12833 "0602 Failed to allocate CQ_EVENT entry\n");
12834 return false;
12835 }
12836
12837 /* Move the CQE into the proper xri abort event list */
12838 memcpy(&cq_event->cqe, wcqe, sizeof(struct sli4_wcqe_xri_aborted));
12839 switch (cq->subtype) {
12840 case LPFC_FCP:
12841 spin_lock_irqsave(&phba->hbalock, iflags);
12842 list_add_tail(&cq_event->list,
12843 &phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
12844 /* Set the fcp xri abort event flag */
12845 phba->hba_flag |= FCP_XRI_ABORT_EVENT;
12846 spin_unlock_irqrestore(&phba->hbalock, iflags);
12847 workposted = true;
12848 break;
12849 case LPFC_ELS:
12850 spin_lock_irqsave(&phba->hbalock, iflags);
12851 list_add_tail(&cq_event->list,
12852 &phba->sli4_hba.sp_els_xri_aborted_work_queue);
12853 /* Set the els xri abort event flag */
12854 phba->hba_flag |= ELS_XRI_ABORT_EVENT;
12855 spin_unlock_irqrestore(&phba->hbalock, iflags);
12856 workposted = true;
12857 break;
James Smart318083a2017-03-04 09:30:30 -080012858 case LPFC_NVME:
12859 spin_lock_irqsave(&phba->hbalock, iflags);
12860 list_add_tail(&cq_event->list,
12861 &phba->sli4_hba.sp_nvme_xri_aborted_work_queue);
12862 /* Set the nvme xri abort event flag */
12863 phba->hba_flag |= NVME_XRI_ABORT_EVENT;
12864 spin_unlock_irqrestore(&phba->hbalock, iflags);
12865 workposted = true;
12866 break;
James Smart4f774512009-05-22 14:52:35 -040012867 default:
12868 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smart318083a2017-03-04 09:30:30 -080012869 "0603 Invalid CQ subtype %d: "
12870 "%08x %08x %08x %08x\n",
12871 cq->subtype, wcqe->word0, wcqe->parameter,
12872 wcqe->word2, wcqe->word3);
12873 lpfc_sli4_cq_event_release(phba, cq_event);
James Smart4f774512009-05-22 14:52:35 -040012874 workposted = false;
12875 break;
12876 }
12877 return workposted;
12878}
12879
12880/**
James Smart4d9ab992009-10-02 15:16:39 -040012881 * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
James Smart4f774512009-05-22 14:52:35 -040012882 * @phba: Pointer to HBA context object.
James Smart4d9ab992009-10-02 15:16:39 -040012883 * @rcqe: Pointer to receive-queue completion queue entry.
James Smart4f774512009-05-22 14:52:35 -040012884 *
James Smart4d9ab992009-10-02 15:16:39 -040012885 * This routine process a receive-queue completion queue entry.
James Smart4f774512009-05-22 14:52:35 -040012886 *
12887 * Return: true if work posted to worker thread, otherwise false.
12888 **/
12889static bool
James Smart4d9ab992009-10-02 15:16:39 -040012890lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe)
12891{
12892 bool workposted = false;
James Smart895427b2017-02-12 13:52:30 -080012893 struct fc_frame_header *fc_hdr;
James Smart4d9ab992009-10-02 15:16:39 -040012894 struct lpfc_queue *hrq = phba->sli4_hba.hdr_rq;
12895 struct lpfc_queue *drq = phba->sli4_hba.dat_rq;
James Smart547077a2017-05-15 15:20:40 -070012896 struct lpfc_nvmet_tgtport *tgtp;
James Smart4d9ab992009-10-02 15:16:39 -040012897 struct hbq_dmabuf *dma_buf;
James Smart7851fe22011-07-22 18:36:52 -040012898 uint32_t status, rq_id;
James Smart4d9ab992009-10-02 15:16:39 -040012899 unsigned long iflags;
12900
James Smart2e90f4b2011-12-13 13:22:37 -050012901 /* sanity check on queue memory */
12902 if (unlikely(!hrq) || unlikely(!drq))
12903 return workposted;
12904
James Smart7851fe22011-07-22 18:36:52 -040012905 if (bf_get(lpfc_cqe_code, rcqe) == CQE_CODE_RECEIVE_V1)
12906 rq_id = bf_get(lpfc_rcqe_rq_id_v1, rcqe);
12907 else
12908 rq_id = bf_get(lpfc_rcqe_rq_id, rcqe);
12909 if (rq_id != hrq->queue_id)
James Smart4d9ab992009-10-02 15:16:39 -040012910 goto out;
12911
12912 status = bf_get(lpfc_rcqe_status, rcqe);
12913 switch (status) {
12914 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
12915 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12916 "2537 Receive Frame Truncated!!\n");
12917 case FC_STATUS_RQ_SUCCESS:
James Smart5ffc2662009-11-18 15:39:44 -050012918 lpfc_sli4_rq_release(hrq, drq);
James Smart4d9ab992009-10-02 15:16:39 -040012919 spin_lock_irqsave(&phba->hbalock, iflags);
12920 dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list);
12921 if (!dma_buf) {
James Smartb84daac2012-08-03 12:35:13 -040012922 hrq->RQ_no_buf_found++;
James Smart4d9ab992009-10-02 15:16:39 -040012923 spin_unlock_irqrestore(&phba->hbalock, iflags);
12924 goto out;
12925 }
James Smartb84daac2012-08-03 12:35:13 -040012926 hrq->RQ_rcv_buf++;
James Smart547077a2017-05-15 15:20:40 -070012927 hrq->RQ_buf_posted--;
James Smart4d9ab992009-10-02 15:16:39 -040012928 memcpy(&dma_buf->cq_event.cqe.rcqe_cmpl, rcqe, sizeof(*rcqe));
James Smart895427b2017-02-12 13:52:30 -080012929
12930 /* If a NVME LS event (type 0x28), treat it as Fast path */
12931 fc_hdr = (struct fc_frame_header *)dma_buf->hbuf.virt;
12932
James Smart4d9ab992009-10-02 15:16:39 -040012933 /* save off the frame for the word thread to process */
12934 list_add_tail(&dma_buf->cq_event.list,
James Smart45ed1192009-10-02 15:17:02 -040012935 &phba->sli4_hba.sp_queue_event);
James Smart4d9ab992009-10-02 15:16:39 -040012936 /* Frame received */
James Smart45ed1192009-10-02 15:17:02 -040012937 phba->hba_flag |= HBA_SP_QUEUE_EVT;
James Smart4d9ab992009-10-02 15:16:39 -040012938 spin_unlock_irqrestore(&phba->hbalock, iflags);
12939 workposted = true;
12940 break;
James Smart4d9ab992009-10-02 15:16:39 -040012941 case FC_STATUS_INSUFF_BUF_FRM_DISC:
James Smart547077a2017-05-15 15:20:40 -070012942 if (phba->nvmet_support) {
12943 tgtp = phba->targetport->private;
12944 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_NVME,
12945 "6402 RQE Error x%x, posted %d err_cnt "
12946 "%d: %x %x %x\n",
12947 status, hrq->RQ_buf_posted,
12948 hrq->RQ_no_posted_buf,
12949 atomic_read(&tgtp->rcv_fcp_cmd_in),
12950 atomic_read(&tgtp->rcv_fcp_cmd_out),
12951 atomic_read(&tgtp->xmt_fcp_release));
12952 }
12953 /* fallthrough */
12954
12955 case FC_STATUS_INSUFF_BUF_NEED_BUF:
James Smartb84daac2012-08-03 12:35:13 -040012956 hrq->RQ_no_posted_buf++;
James Smart4d9ab992009-10-02 15:16:39 -040012957 /* Post more buffers if possible */
12958 spin_lock_irqsave(&phba->hbalock, iflags);
12959 phba->hba_flag |= HBA_POST_RECEIVE_BUFFER;
12960 spin_unlock_irqrestore(&phba->hbalock, iflags);
12961 workposted = true;
12962 break;
12963 }
12964out:
12965 return workposted;
James Smart4d9ab992009-10-02 15:16:39 -040012966}
12967
12968/**
12969 * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
12970 * @phba: Pointer to HBA context object.
12971 * @cq: Pointer to the completion queue.
12972 * @wcqe: Pointer to a completion queue entry.
12973 *
Lucas De Marchi25985ed2011-03-30 22:57:33 -030012974 * This routine process a slow-path work-queue or receive queue completion queue
James Smart4d9ab992009-10-02 15:16:39 -040012975 * entry.
12976 *
12977 * Return: true if work posted to worker thread, otherwise false.
12978 **/
12979static bool
12980lpfc_sli4_sp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
James Smart4f774512009-05-22 14:52:35 -040012981 struct lpfc_cqe *cqe)
12982{
James Smart45ed1192009-10-02 15:17:02 -040012983 struct lpfc_cqe cqevt;
James Smart4f774512009-05-22 14:52:35 -040012984 bool workposted = false;
12985
12986 /* Copy the work queue CQE and convert endian order if needed */
James Smart45ed1192009-10-02 15:17:02 -040012987 lpfc_sli_pcimem_bcopy(cqe, &cqevt, sizeof(struct lpfc_cqe));
James Smart4f774512009-05-22 14:52:35 -040012988
12989 /* Check and process for different type of WCQE and dispatch */
James Smart45ed1192009-10-02 15:17:02 -040012990 switch (bf_get(lpfc_cqe_code, &cqevt)) {
James Smart4f774512009-05-22 14:52:35 -040012991 case CQE_CODE_COMPL_WQE:
James Smart45ed1192009-10-02 15:17:02 -040012992 /* Process the WQ/RQ complete event */
James Smartbc739052010-08-04 16:11:18 -040012993 phba->last_completion_time = jiffies;
James Smart2a76a282012-08-03 12:35:54 -040012994 workposted = lpfc_sli4_sp_handle_els_wcqe(phba, cq,
James Smart45ed1192009-10-02 15:17:02 -040012995 (struct lpfc_wcqe_complete *)&cqevt);
James Smart4f774512009-05-22 14:52:35 -040012996 break;
12997 case CQE_CODE_RELEASE_WQE:
12998 /* Process the WQ release event */
12999 lpfc_sli4_sp_handle_rel_wcqe(phba,
James Smart45ed1192009-10-02 15:17:02 -040013000 (struct lpfc_wcqe_release *)&cqevt);
James Smart4f774512009-05-22 14:52:35 -040013001 break;
13002 case CQE_CODE_XRI_ABORTED:
13003 /* Process the WQ XRI abort event */
James Smartbc739052010-08-04 16:11:18 -040013004 phba->last_completion_time = jiffies;
James Smart4f774512009-05-22 14:52:35 -040013005 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
James Smart45ed1192009-10-02 15:17:02 -040013006 (struct sli4_wcqe_xri_aborted *)&cqevt);
James Smart4f774512009-05-22 14:52:35 -040013007 break;
James Smart4d9ab992009-10-02 15:16:39 -040013008 case CQE_CODE_RECEIVE:
James Smart7851fe22011-07-22 18:36:52 -040013009 case CQE_CODE_RECEIVE_V1:
James Smart4d9ab992009-10-02 15:16:39 -040013010 /* Process the RQ event */
James Smartbc739052010-08-04 16:11:18 -040013011 phba->last_completion_time = jiffies;
James Smart4d9ab992009-10-02 15:16:39 -040013012 workposted = lpfc_sli4_sp_handle_rcqe(phba,
James Smart45ed1192009-10-02 15:17:02 -040013013 (struct lpfc_rcqe *)&cqevt);
James Smart4d9ab992009-10-02 15:16:39 -040013014 break;
James Smart4f774512009-05-22 14:52:35 -040013015 default:
13016 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13017 "0388 Not a valid WCQE code: x%x\n",
James Smart45ed1192009-10-02 15:17:02 -040013018 bf_get(lpfc_cqe_code, &cqevt));
James Smart4f774512009-05-22 14:52:35 -040013019 break;
13020 }
13021 return workposted;
13022}
13023
13024/**
James Smart4f774512009-05-22 14:52:35 -040013025 * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
13026 * @phba: Pointer to HBA context object.
13027 * @eqe: Pointer to fast-path event queue entry.
13028 *
13029 * This routine process a event queue entry from the slow-path event queue.
13030 * It will check the MajorCode and MinorCode to determine this is for a
13031 * completion event on a completion queue, if not, an error shall be logged
13032 * and just return. Otherwise, it will get to the corresponding completion
13033 * queue and process all the entries on that completion queue, rearm the
13034 * completion queue, and then return.
13035 *
13036 **/
Dick Kennedye3e28632017-08-23 16:55:41 -070013037static int
James Smart67d12732012-08-03 12:36:13 -040013038lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
13039 struct lpfc_queue *speq)
James Smart4f774512009-05-22 14:52:35 -040013040{
James Smart67d12732012-08-03 12:36:13 -040013041 struct lpfc_queue *cq = NULL, *childq;
James Smart4f774512009-05-22 14:52:35 -040013042 struct lpfc_cqe *cqe;
13043 bool workposted = false;
13044 int ecount = 0;
13045 uint16_t cqid;
13046
James Smart4f774512009-05-22 14:52:35 -040013047 /* Get the reference to the corresponding CQ */
James Smartcb5172e2010-03-15 11:25:07 -040013048 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
James Smart4f774512009-05-22 14:52:35 -040013049
James Smart4f774512009-05-22 14:52:35 -040013050 list_for_each_entry(childq, &speq->child_list, list) {
13051 if (childq->queue_id == cqid) {
13052 cq = childq;
13053 break;
13054 }
13055 }
13056 if (unlikely(!cq)) {
James Smart75baf692010-06-08 18:31:21 -040013057 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
13058 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13059 "0365 Slow-path CQ identifier "
13060 "(%d) does not exist\n", cqid);
Dick Kennedye3e28632017-08-23 16:55:41 -070013061 return 0;
James Smart4f774512009-05-22 14:52:35 -040013062 }
13063
James Smart895427b2017-02-12 13:52:30 -080013064 /* Save EQ associated with this CQ */
13065 cq->assoc_qp = speq;
13066
James Smart4f774512009-05-22 14:52:35 -040013067 /* Process all the entries to the CQ */
13068 switch (cq->type) {
13069 case LPFC_MCQ:
13070 while ((cqe = lpfc_sli4_cq_get(cq))) {
13071 workposted |= lpfc_sli4_sp_handle_mcqe(phba, cqe);
James Smart73d91e52011-10-10 21:32:10 -040013072 if (!(++ecount % cq->entry_repost))
James Smart7869da12017-05-15 15:20:43 -070013073 break;
James Smartb84daac2012-08-03 12:35:13 -040013074 cq->CQ_mbox++;
James Smart4f774512009-05-22 14:52:35 -040013075 }
13076 break;
13077 case LPFC_WCQ:
13078 while ((cqe = lpfc_sli4_cq_get(cq))) {
James Smart895427b2017-02-12 13:52:30 -080013079 if ((cq->subtype == LPFC_FCP) ||
13080 (cq->subtype == LPFC_NVME))
13081 workposted |= lpfc_sli4_fp_handle_cqe(phba, cq,
James Smart05580562011-05-24 11:40:48 -040013082 cqe);
13083 else
13084 workposted |= lpfc_sli4_sp_handle_cqe(phba, cq,
13085 cqe);
James Smart73d91e52011-10-10 21:32:10 -040013086 if (!(++ecount % cq->entry_repost))
James Smart7869da12017-05-15 15:20:43 -070013087 break;
James Smart4f774512009-05-22 14:52:35 -040013088 }
James Smartb84daac2012-08-03 12:35:13 -040013089
13090 /* Track the max number of CQEs processed in 1 EQ */
13091 if (ecount > cq->CQ_max_cqe)
13092 cq->CQ_max_cqe = ecount;
James Smart4f774512009-05-22 14:52:35 -040013093 break;
13094 default:
13095 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13096 "0370 Invalid completion queue type (%d)\n",
13097 cq->type);
Dick Kennedye3e28632017-08-23 16:55:41 -070013098 return 0;
James Smart4f774512009-05-22 14:52:35 -040013099 }
13100
13101 /* Catch the no cq entry condition, log an error */
13102 if (unlikely(ecount == 0))
13103 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13104 "0371 No entry from the CQ: identifier "
13105 "(x%x), type (%d)\n", cq->queue_id, cq->type);
13106
13107 /* In any case, flash and re-arm the RCQ */
13108 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
13109
13110 /* wake up worker thread if there are works to be done */
13111 if (workposted)
13112 lpfc_worker_wake_up(phba);
Dick Kennedye3e28632017-08-23 16:55:41 -070013113
13114 return ecount;
James Smart4f774512009-05-22 14:52:35 -040013115}
13116
13117/**
13118 * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
James Smart2a76a282012-08-03 12:35:54 -040013119 * @phba: Pointer to HBA context object.
13120 * @cq: Pointer to associated CQ
13121 * @wcqe: Pointer to work-queue completion queue entry.
James Smart4f774512009-05-22 14:52:35 -040013122 *
13123 * This routine process a fast-path work queue completion entry from fast-path
13124 * event queue for FCP command response completion.
13125 **/
13126static void
James Smart2a76a282012-08-03 12:35:54 -040013127lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
James Smart4f774512009-05-22 14:52:35 -040013128 struct lpfc_wcqe_complete *wcqe)
13129{
James Smart2a76a282012-08-03 12:35:54 -040013130 struct lpfc_sli_ring *pring = cq->pring;
James Smart4f774512009-05-22 14:52:35 -040013131 struct lpfc_iocbq *cmdiocbq;
13132 struct lpfc_iocbq irspiocbq;
13133 unsigned long iflags;
13134
James Smart4f774512009-05-22 14:52:35 -040013135 /* Check for response status */
13136 if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
13137 /* If resource errors reported from HBA, reduce queue
13138 * depth of the SCSI device.
13139 */
James Smarte3d2b802012-08-14 14:25:43 -040013140 if (((bf_get(lpfc_wcqe_c_status, wcqe) ==
13141 IOSTAT_LOCAL_REJECT)) &&
13142 ((wcqe->parameter & IOERR_PARAM_MASK) ==
13143 IOERR_NO_RESOURCES))
James Smart4f774512009-05-22 14:52:35 -040013144 phba->lpfc_rampdown_queue_depth(phba);
James Smarte3d2b802012-08-14 14:25:43 -040013145
James Smart4f774512009-05-22 14:52:35 -040013146 /* Log the error status */
13147 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13148 "0373 FCP complete error: status=x%x, "
13149 "hw_status=x%x, total_data_specified=%d, "
13150 "parameter=x%x, word3=x%x\n",
13151 bf_get(lpfc_wcqe_c_status, wcqe),
13152 bf_get(lpfc_wcqe_c_hw_status, wcqe),
13153 wcqe->total_data_placed, wcqe->parameter,
13154 wcqe->word3);
13155 }
13156
13157 /* Look up the FCP command IOCB and create pseudo response IOCB */
James Smart7e56aa22012-08-03 12:35:34 -040013158 spin_lock_irqsave(&pring->ring_lock, iflags);
13159 pring->stats.iocb_event++;
James Smart4f774512009-05-22 14:52:35 -040013160 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
13161 bf_get(lpfc_wcqe_c_request_tag, wcqe));
James Smart7e56aa22012-08-03 12:35:34 -040013162 spin_unlock_irqrestore(&pring->ring_lock, iflags);
James Smart4f774512009-05-22 14:52:35 -040013163 if (unlikely(!cmdiocbq)) {
13164 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13165 "0374 FCP complete with no corresponding "
13166 "cmdiocb: iotag (%d)\n",
13167 bf_get(lpfc_wcqe_c_request_tag, wcqe));
13168 return;
13169 }
James Smart895427b2017-02-12 13:52:30 -080013170
13171 if (cq->assoc_qp)
13172 cmdiocbq->isr_timestamp =
13173 cq->assoc_qp->isr_timestamp;
13174
13175 if (cmdiocbq->iocb_cmpl == NULL) {
13176 if (cmdiocbq->wqe_cmpl) {
13177 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) {
13178 spin_lock_irqsave(&phba->hbalock, iflags);
13179 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
13180 spin_unlock_irqrestore(&phba->hbalock, iflags);
13181 }
13182
13183 /* Pass the cmd_iocb and the wcqe to the upper layer */
13184 (cmdiocbq->wqe_cmpl)(phba, cmdiocbq, wcqe);
13185 return;
13186 }
James Smart4f774512009-05-22 14:52:35 -040013187 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13188 "0375 FCP cmdiocb not callback function "
13189 "iotag: (%d)\n",
13190 bf_get(lpfc_wcqe_c_request_tag, wcqe));
13191 return;
13192 }
13193
13194 /* Fake the irspiocb and copy necessary response information */
James Smart341af102010-01-26 23:07:37 -050013195 lpfc_sli4_iocb_param_transfer(phba, &irspiocbq, cmdiocbq, wcqe);
James Smart4f774512009-05-22 14:52:35 -040013196
James Smart0f65ff62010-02-26 14:14:23 -050013197 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) {
13198 spin_lock_irqsave(&phba->hbalock, iflags);
13199 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
13200 spin_unlock_irqrestore(&phba->hbalock, iflags);
13201 }
13202
James Smart4f774512009-05-22 14:52:35 -040013203 /* Pass the cmd_iocb and the rsp state to the upper layer */
13204 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &irspiocbq);
13205}
13206
13207/**
13208 * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
13209 * @phba: Pointer to HBA context object.
13210 * @cq: Pointer to completion queue.
13211 * @wcqe: Pointer to work-queue completion queue entry.
13212 *
Masahiro Yamada3f8b6fb2017-02-27 14:29:25 -080013213 * This routine handles an fast-path WQ entry consumed event by invoking the
James Smart4f774512009-05-22 14:52:35 -040013214 * proper WQ release routine to the slow-path WQ.
13215 **/
13216static void
13217lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13218 struct lpfc_wcqe_release *wcqe)
13219{
13220 struct lpfc_queue *childwq;
13221 bool wqid_matched = false;
James Smart895427b2017-02-12 13:52:30 -080013222 uint16_t hba_wqid;
James Smart4f774512009-05-22 14:52:35 -040013223
13224 /* Check for fast-path FCP work queue release */
James Smart895427b2017-02-12 13:52:30 -080013225 hba_wqid = bf_get(lpfc_wcqe_r_wq_id, wcqe);
James Smart4f774512009-05-22 14:52:35 -040013226 list_for_each_entry(childwq, &cq->child_list, list) {
James Smart895427b2017-02-12 13:52:30 -080013227 if (childwq->queue_id == hba_wqid) {
James Smart4f774512009-05-22 14:52:35 -040013228 lpfc_sli4_wq_release(childwq,
13229 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
13230 wqid_matched = true;
13231 break;
13232 }
13233 }
13234 /* Report warning log message if no match found */
13235 if (wqid_matched != true)
13236 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13237 "2580 Fast-path wqe consume event carries "
James Smart895427b2017-02-12 13:52:30 -080013238 "miss-matched qid: wcqe-qid=x%x\n", hba_wqid);
James Smart4f774512009-05-22 14:52:35 -040013239}
13240
13241/**
James Smart2d7dbc42017-02-12 13:52:35 -080013242 * lpfc_sli4_nvmet_handle_rcqe - Process a receive-queue completion queue entry
13243 * @phba: Pointer to HBA context object.
13244 * @rcqe: Pointer to receive-queue completion queue entry.
13245 *
13246 * This routine process a receive-queue completion queue entry.
13247 *
13248 * Return: true if work posted to worker thread, otherwise false.
13249 **/
13250static bool
13251lpfc_sli4_nvmet_handle_rcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13252 struct lpfc_rcqe *rcqe)
13253{
13254 bool workposted = false;
13255 struct lpfc_queue *hrq;
13256 struct lpfc_queue *drq;
13257 struct rqb_dmabuf *dma_buf;
13258 struct fc_frame_header *fc_hdr;
James Smart547077a2017-05-15 15:20:40 -070013259 struct lpfc_nvmet_tgtport *tgtp;
James Smart2d7dbc42017-02-12 13:52:35 -080013260 uint32_t status, rq_id;
13261 unsigned long iflags;
13262 uint32_t fctl, idx;
13263
13264 if ((phba->nvmet_support == 0) ||
13265 (phba->sli4_hba.nvmet_cqset == NULL))
13266 return workposted;
13267
13268 idx = cq->queue_id - phba->sli4_hba.nvmet_cqset[0]->queue_id;
13269 hrq = phba->sli4_hba.nvmet_mrq_hdr[idx];
13270 drq = phba->sli4_hba.nvmet_mrq_data[idx];
13271
13272 /* sanity check on queue memory */
13273 if (unlikely(!hrq) || unlikely(!drq))
13274 return workposted;
13275
13276 if (bf_get(lpfc_cqe_code, rcqe) == CQE_CODE_RECEIVE_V1)
13277 rq_id = bf_get(lpfc_rcqe_rq_id_v1, rcqe);
13278 else
13279 rq_id = bf_get(lpfc_rcqe_rq_id, rcqe);
13280
13281 if ((phba->nvmet_support == 0) ||
13282 (rq_id != hrq->queue_id))
13283 return workposted;
13284
13285 status = bf_get(lpfc_rcqe_status, rcqe);
13286 switch (status) {
13287 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
13288 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13289 "6126 Receive Frame Truncated!!\n");
James Smart78e1d202017-06-01 21:07:09 -070013290 /* Drop thru */
James Smart2d7dbc42017-02-12 13:52:35 -080013291 case FC_STATUS_RQ_SUCCESS:
13292 lpfc_sli4_rq_release(hrq, drq);
13293 spin_lock_irqsave(&phba->hbalock, iflags);
13294 dma_buf = lpfc_sli_rqbuf_get(phba, hrq);
13295 if (!dma_buf) {
13296 hrq->RQ_no_buf_found++;
13297 spin_unlock_irqrestore(&phba->hbalock, iflags);
13298 goto out;
13299 }
13300 spin_unlock_irqrestore(&phba->hbalock, iflags);
13301 hrq->RQ_rcv_buf++;
James Smart547077a2017-05-15 15:20:40 -070013302 hrq->RQ_buf_posted--;
James Smart2d7dbc42017-02-12 13:52:35 -080013303 fc_hdr = (struct fc_frame_header *)dma_buf->hbuf.virt;
13304
13305 /* Just some basic sanity checks on FCP Command frame */
13306 fctl = (fc_hdr->fh_f_ctl[0] << 16 |
13307 fc_hdr->fh_f_ctl[1] << 8 |
13308 fc_hdr->fh_f_ctl[2]);
13309 if (((fctl &
13310 (FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT)) !=
13311 (FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT)) ||
13312 (fc_hdr->fh_seq_cnt != 0)) /* 0 byte swapped is still 0 */
13313 goto drop;
13314
13315 if (fc_hdr->fh_type == FC_TYPE_FCP) {
13316 dma_buf->bytes_recv = bf_get(lpfc_rcqe_length, rcqe);
James Smartd613b6a2017-02-12 13:52:37 -080013317 lpfc_nvmet_unsol_fcp_event(
Dick Kennedy66d7ce92017-08-23 16:55:42 -070013318 phba, idx, dma_buf,
James Smartd613b6a2017-02-12 13:52:37 -080013319 cq->assoc_qp->isr_timestamp);
James Smart2d7dbc42017-02-12 13:52:35 -080013320 return false;
13321 }
13322drop:
13323 lpfc_in_buf_free(phba, &dma_buf->dbuf);
13324 break;
James Smart2d7dbc42017-02-12 13:52:35 -080013325 case FC_STATUS_INSUFF_BUF_FRM_DISC:
James Smart547077a2017-05-15 15:20:40 -070013326 if (phba->nvmet_support) {
13327 tgtp = phba->targetport->private;
13328 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_NVME,
13329 "6401 RQE Error x%x, posted %d err_cnt "
13330 "%d: %x %x %x\n",
13331 status, hrq->RQ_buf_posted,
13332 hrq->RQ_no_posted_buf,
13333 atomic_read(&tgtp->rcv_fcp_cmd_in),
13334 atomic_read(&tgtp->rcv_fcp_cmd_out),
13335 atomic_read(&tgtp->xmt_fcp_release));
13336 }
13337 /* fallthrough */
13338
13339 case FC_STATUS_INSUFF_BUF_NEED_BUF:
James Smart2d7dbc42017-02-12 13:52:35 -080013340 hrq->RQ_no_posted_buf++;
13341 /* Post more buffers if possible */
James Smart2d7dbc42017-02-12 13:52:35 -080013342 break;
13343 }
13344out:
13345 return workposted;
13346}
13347
13348/**
James Smart895427b2017-02-12 13:52:30 -080013349 * lpfc_sli4_fp_handle_cqe - Process fast-path work queue completion entry
James Smart4f774512009-05-22 14:52:35 -040013350 * @cq: Pointer to the completion queue.
13351 * @eqe: Pointer to fast-path completion queue entry.
13352 *
13353 * This routine process a fast-path work queue completion entry from fast-path
13354 * event queue for FCP command response completion.
13355 **/
13356static int
James Smart895427b2017-02-12 13:52:30 -080013357lpfc_sli4_fp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
James Smart4f774512009-05-22 14:52:35 -040013358 struct lpfc_cqe *cqe)
13359{
13360 struct lpfc_wcqe_release wcqe;
13361 bool workposted = false;
13362
13363 /* Copy the work queue CQE and convert endian order if needed */
13364 lpfc_sli_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe));
13365
13366 /* Check and process for different type of WCQE and dispatch */
13367 switch (bf_get(lpfc_wcqe_c_code, &wcqe)) {
13368 case CQE_CODE_COMPL_WQE:
James Smart895427b2017-02-12 13:52:30 -080013369 case CQE_CODE_NVME_ERSP:
James Smartb84daac2012-08-03 12:35:13 -040013370 cq->CQ_wq++;
James Smart4f774512009-05-22 14:52:35 -040013371 /* Process the WQ complete event */
James Smart98fc5dd2010-06-07 15:24:29 -040013372 phba->last_completion_time = jiffies;
James Smart895427b2017-02-12 13:52:30 -080013373 if ((cq->subtype == LPFC_FCP) || (cq->subtype == LPFC_NVME))
13374 lpfc_sli4_fp_handle_fcp_wcqe(phba, cq,
13375 (struct lpfc_wcqe_complete *)&wcqe);
13376 if (cq->subtype == LPFC_NVME_LS)
13377 lpfc_sli4_fp_handle_fcp_wcqe(phba, cq,
James Smart4f774512009-05-22 14:52:35 -040013378 (struct lpfc_wcqe_complete *)&wcqe);
13379 break;
13380 case CQE_CODE_RELEASE_WQE:
James Smartb84daac2012-08-03 12:35:13 -040013381 cq->CQ_release_wqe++;
James Smart4f774512009-05-22 14:52:35 -040013382 /* Process the WQ release event */
13383 lpfc_sli4_fp_handle_rel_wcqe(phba, cq,
13384 (struct lpfc_wcqe_release *)&wcqe);
13385 break;
13386 case CQE_CODE_XRI_ABORTED:
James Smartb84daac2012-08-03 12:35:13 -040013387 cq->CQ_xri_aborted++;
James Smart4f774512009-05-22 14:52:35 -040013388 /* Process the WQ XRI abort event */
James Smartbc739052010-08-04 16:11:18 -040013389 phba->last_completion_time = jiffies;
James Smart4f774512009-05-22 14:52:35 -040013390 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
13391 (struct sli4_wcqe_xri_aborted *)&wcqe);
13392 break;
James Smart895427b2017-02-12 13:52:30 -080013393 case CQE_CODE_RECEIVE_V1:
13394 case CQE_CODE_RECEIVE:
13395 phba->last_completion_time = jiffies;
James Smart2d7dbc42017-02-12 13:52:35 -080013396 if (cq->subtype == LPFC_NVMET) {
13397 workposted = lpfc_sli4_nvmet_handle_rcqe(
13398 phba, cq, (struct lpfc_rcqe *)&wcqe);
13399 }
James Smart895427b2017-02-12 13:52:30 -080013400 break;
James Smart4f774512009-05-22 14:52:35 -040013401 default:
13402 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smart895427b2017-02-12 13:52:30 -080013403 "0144 Not a valid CQE code: x%x\n",
James Smart4f774512009-05-22 14:52:35 -040013404 bf_get(lpfc_wcqe_c_code, &wcqe));
13405 break;
13406 }
13407 return workposted;
13408}
13409
13410/**
James Smart67d12732012-08-03 12:36:13 -040013411 * lpfc_sli4_hba_handle_eqe - Process a fast-path event queue entry
James Smart4f774512009-05-22 14:52:35 -040013412 * @phba: Pointer to HBA context object.
13413 * @eqe: Pointer to fast-path event queue entry.
13414 *
13415 * This routine process a event queue entry from the fast-path event queue.
13416 * It will check the MajorCode and MinorCode to determine this is for a
13417 * completion event on a completion queue, if not, an error shall be logged
13418 * and just return. Otherwise, it will get to the corresponding completion
13419 * queue and process all the entries on the completion queue, rearm the
13420 * completion queue, and then return.
13421 **/
Dick Kennedye3e28632017-08-23 16:55:41 -070013422static int
James Smart67d12732012-08-03 12:36:13 -040013423lpfc_sli4_hba_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
13424 uint32_t qidx)
James Smart4f774512009-05-22 14:52:35 -040013425{
James Smart895427b2017-02-12 13:52:30 -080013426 struct lpfc_queue *cq = NULL;
James Smart4f774512009-05-22 14:52:35 -040013427 struct lpfc_cqe *cqe;
13428 bool workposted = false;
James Smart2d7dbc42017-02-12 13:52:35 -080013429 uint16_t cqid, id;
James Smart4f774512009-05-22 14:52:35 -040013430 int ecount = 0;
13431
James Smartcb5172e2010-03-15 11:25:07 -040013432 if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
James Smart4f774512009-05-22 14:52:35 -040013433 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smart67d12732012-08-03 12:36:13 -040013434 "0366 Not a valid completion "
James Smart4f774512009-05-22 14:52:35 -040013435 "event: majorcode=x%x, minorcode=x%x\n",
James Smartcb5172e2010-03-15 11:25:07 -040013436 bf_get_le32(lpfc_eqe_major_code, eqe),
13437 bf_get_le32(lpfc_eqe_minor_code, eqe));
Dick Kennedye3e28632017-08-23 16:55:41 -070013438 return 0;
James Smart4f774512009-05-22 14:52:35 -040013439 }
13440
James Smart67d12732012-08-03 12:36:13 -040013441 /* Get the reference to the corresponding CQ */
13442 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
13443
James Smart2d7dbc42017-02-12 13:52:35 -080013444 if (phba->cfg_nvmet_mrq && phba->sli4_hba.nvmet_cqset) {
13445 id = phba->sli4_hba.nvmet_cqset[0]->queue_id;
13446 if ((cqid >= id) && (cqid < (id + phba->cfg_nvmet_mrq))) {
13447 /* Process NVMET unsol rcv */
13448 cq = phba->sli4_hba.nvmet_cqset[cqid - id];
13449 goto process_cq;
13450 }
13451 }
13452
James Smart895427b2017-02-12 13:52:30 -080013453 if (phba->sli4_hba.nvme_cq_map &&
13454 (cqid == phba->sli4_hba.nvme_cq_map[qidx])) {
James Smartf358dd02017-02-12 13:52:34 -080013455 /* Process NVME / NVMET command completion */
James Smart895427b2017-02-12 13:52:30 -080013456 cq = phba->sli4_hba.nvme_cq[qidx];
13457 goto process_cq;
13458 }
13459
13460 if (phba->sli4_hba.fcp_cq_map &&
13461 (cqid == phba->sli4_hba.fcp_cq_map[qidx])) {
13462 /* Process FCP command completion */
13463 cq = phba->sli4_hba.fcp_cq[qidx];
13464 goto process_cq;
13465 }
13466
13467 if (phba->sli4_hba.nvmels_cq &&
13468 (cqid == phba->sli4_hba.nvmels_cq->queue_id)) {
13469 /* Process NVME unsol rcv */
13470 cq = phba->sli4_hba.nvmels_cq;
13471 }
13472
13473 /* Otherwise this is a Slow path event */
13474 if (cq == NULL) {
Dick Kennedye3e28632017-08-23 16:55:41 -070013475 ecount = lpfc_sli4_sp_handle_eqe(phba, eqe,
13476 phba->sli4_hba.hba_eq[qidx]);
13477 return ecount;
James Smart67d12732012-08-03 12:36:13 -040013478 }
13479
James Smart895427b2017-02-12 13:52:30 -080013480process_cq:
James Smart4f774512009-05-22 14:52:35 -040013481 if (unlikely(cqid != cq->queue_id)) {
13482 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13483 "0368 Miss-matched fast-path completion "
13484 "queue identifier: eqcqid=%d, fcpcqid=%d\n",
13485 cqid, cq->queue_id);
Dick Kennedye3e28632017-08-23 16:55:41 -070013486 return 0;
James Smart4f774512009-05-22 14:52:35 -040013487 }
13488
James Smart895427b2017-02-12 13:52:30 -080013489 /* Save EQ associated with this CQ */
13490 cq->assoc_qp = phba->sli4_hba.hba_eq[qidx];
13491
James Smart4f774512009-05-22 14:52:35 -040013492 /* Process all the entries to the CQ */
13493 while ((cqe = lpfc_sli4_cq_get(cq))) {
James Smart895427b2017-02-12 13:52:30 -080013494 workposted |= lpfc_sli4_fp_handle_cqe(phba, cq, cqe);
James Smart73d91e52011-10-10 21:32:10 -040013495 if (!(++ecount % cq->entry_repost))
James Smart7869da12017-05-15 15:20:43 -070013496 break;
James Smart4f774512009-05-22 14:52:35 -040013497 }
13498
James Smartb84daac2012-08-03 12:35:13 -040013499 /* Track the max number of CQEs processed in 1 EQ */
13500 if (ecount > cq->CQ_max_cqe)
13501 cq->CQ_max_cqe = ecount;
James Smart0cf07f842017-06-01 21:07:10 -070013502 cq->assoc_qp->EQ_cqe_cnt += ecount;
James Smartb84daac2012-08-03 12:35:13 -040013503
James Smart4f774512009-05-22 14:52:35 -040013504 /* Catch the no cq entry condition */
13505 if (unlikely(ecount == 0))
13506 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13507 "0369 No entry from fast-path completion "
13508 "queue fcpcqid=%d\n", cq->queue_id);
13509
13510 /* In any case, flash and re-arm the CQ */
13511 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
13512
13513 /* wake up worker thread if there are works to be done */
13514 if (workposted)
13515 lpfc_worker_wake_up(phba);
Dick Kennedye3e28632017-08-23 16:55:41 -070013516
13517 return ecount;
James Smart4f774512009-05-22 14:52:35 -040013518}
13519
13520static void
13521lpfc_sli4_eq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq)
13522{
13523 struct lpfc_eqe *eqe;
13524
13525 /* walk all the EQ entries and drop on the floor */
13526 while ((eqe = lpfc_sli4_eq_get(eq)))
13527 ;
13528
13529 /* Clear and re-arm the EQ */
13530 lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM);
13531}
13532
James Smart1ba981f2014-02-20 09:56:45 -050013533
13534/**
13535 * lpfc_sli4_fof_handle_eqe - Process a Flash Optimized Fabric event queue
13536 * entry
13537 * @phba: Pointer to HBA context object.
13538 * @eqe: Pointer to fast-path event queue entry.
13539 *
13540 * This routine process a event queue entry from the Flash Optimized Fabric
13541 * event queue. It will check the MajorCode and MinorCode to determine this
13542 * is for a completion event on a completion queue, if not, an error shall be
13543 * logged and just return. Otherwise, it will get to the corresponding
13544 * completion queue and process all the entries on the completion queue, rearm
13545 * the completion queue, and then return.
13546 **/
13547static void
13548lpfc_sli4_fof_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe)
13549{
13550 struct lpfc_queue *cq;
13551 struct lpfc_cqe *cqe;
13552 bool workposted = false;
13553 uint16_t cqid;
13554 int ecount = 0;
13555
13556 if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
13557 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13558 "9147 Not a valid completion "
13559 "event: majorcode=x%x, minorcode=x%x\n",
13560 bf_get_le32(lpfc_eqe_major_code, eqe),
13561 bf_get_le32(lpfc_eqe_minor_code, eqe));
13562 return;
13563 }
13564
13565 /* Get the reference to the corresponding CQ */
13566 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
13567
13568 /* Next check for OAS */
13569 cq = phba->sli4_hba.oas_cq;
13570 if (unlikely(!cq)) {
13571 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
13572 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13573 "9148 OAS completion queue "
13574 "does not exist\n");
13575 return;
13576 }
13577
13578 if (unlikely(cqid != cq->queue_id)) {
13579 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13580 "9149 Miss-matched fast-path compl "
13581 "queue id: eqcqid=%d, fcpcqid=%d\n",
13582 cqid, cq->queue_id);
13583 return;
13584 }
13585
James Smartd41b65b2017-06-15 22:56:41 -070013586 /* Save EQ associated with this CQ */
13587 cq->assoc_qp = phba->sli4_hba.fof_eq;
13588
James Smart1ba981f2014-02-20 09:56:45 -050013589 /* Process all the entries to the OAS CQ */
13590 while ((cqe = lpfc_sli4_cq_get(cq))) {
James Smart895427b2017-02-12 13:52:30 -080013591 workposted |= lpfc_sli4_fp_handle_cqe(phba, cq, cqe);
James Smart1ba981f2014-02-20 09:56:45 -050013592 if (!(++ecount % cq->entry_repost))
James Smart7869da12017-05-15 15:20:43 -070013593 break;
James Smart1ba981f2014-02-20 09:56:45 -050013594 }
13595
13596 /* Track the max number of CQEs processed in 1 EQ */
13597 if (ecount > cq->CQ_max_cqe)
13598 cq->CQ_max_cqe = ecount;
James Smart0cf07f842017-06-01 21:07:10 -070013599 cq->assoc_qp->EQ_cqe_cnt += ecount;
James Smart1ba981f2014-02-20 09:56:45 -050013600
13601 /* Catch the no cq entry condition */
13602 if (unlikely(ecount == 0))
13603 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13604 "9153 No entry from fast-path completion "
13605 "queue fcpcqid=%d\n", cq->queue_id);
13606
13607 /* In any case, flash and re-arm the CQ */
13608 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
13609
13610 /* wake up worker thread if there are works to be done */
13611 if (workposted)
13612 lpfc_worker_wake_up(phba);
13613}
13614
13615/**
13616 * lpfc_sli4_fof_intr_handler - HBA interrupt handler to SLI-4 device
13617 * @irq: Interrupt number.
13618 * @dev_id: The device context pointer.
13619 *
13620 * This function is directly called from the PCI layer as an interrupt
13621 * service routine when device with SLI-4 interface spec is enabled with
13622 * MSI-X multi-message interrupt mode and there is a Flash Optimized Fabric
13623 * IOCB ring event in the HBA. However, when the device is enabled with either
13624 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
13625 * device-level interrupt handler. When the PCI slot is in error recovery
13626 * or the HBA is undergoing initialization, the interrupt handler will not
13627 * process the interrupt. The Flash Optimized Fabric ring event are handled in
13628 * the intrrupt context. This function is called without any lock held.
13629 * It gets the hbalock to access and update SLI data structures. Note that,
13630 * the EQ to CQ are one-to-one map such that the EQ index is
13631 * equal to that of CQ index.
13632 *
13633 * This function returns IRQ_HANDLED when interrupt is handled else it
13634 * returns IRQ_NONE.
13635 **/
13636irqreturn_t
13637lpfc_sli4_fof_intr_handler(int irq, void *dev_id)
13638{
13639 struct lpfc_hba *phba;
James Smart895427b2017-02-12 13:52:30 -080013640 struct lpfc_hba_eq_hdl *hba_eq_hdl;
James Smart1ba981f2014-02-20 09:56:45 -050013641 struct lpfc_queue *eq;
13642 struct lpfc_eqe *eqe;
13643 unsigned long iflag;
13644 int ecount = 0;
James Smart1ba981f2014-02-20 09:56:45 -050013645
13646 /* Get the driver's phba structure from the dev_id */
James Smart895427b2017-02-12 13:52:30 -080013647 hba_eq_hdl = (struct lpfc_hba_eq_hdl *)dev_id;
13648 phba = hba_eq_hdl->phba;
James Smart1ba981f2014-02-20 09:56:45 -050013649
13650 if (unlikely(!phba))
13651 return IRQ_NONE;
13652
13653 /* Get to the EQ struct associated with this vector */
13654 eq = phba->sli4_hba.fof_eq;
13655 if (unlikely(!eq))
13656 return IRQ_NONE;
13657
13658 /* Check device state for handling interrupt */
13659 if (unlikely(lpfc_intr_state_check(phba))) {
James Smart1ba981f2014-02-20 09:56:45 -050013660 /* Check again for link_state with lock held */
13661 spin_lock_irqsave(&phba->hbalock, iflag);
13662 if (phba->link_state < LPFC_LINK_DOWN)
13663 /* Flush, clear interrupt, and rearm the EQ */
13664 lpfc_sli4_eq_flush(phba, eq);
13665 spin_unlock_irqrestore(&phba->hbalock, iflag);
13666 return IRQ_NONE;
13667 }
13668
13669 /*
13670 * Process all the event on FCP fast-path EQ
13671 */
13672 while ((eqe = lpfc_sli4_eq_get(eq))) {
13673 lpfc_sli4_fof_handle_eqe(phba, eqe);
13674 if (!(++ecount % eq->entry_repost))
James Smart7869da12017-05-15 15:20:43 -070013675 break;
James Smart1ba981f2014-02-20 09:56:45 -050013676 eq->EQ_processed++;
13677 }
13678
13679 /* Track the max number of EQEs processed in 1 intr */
13680 if (ecount > eq->EQ_max_eqe)
13681 eq->EQ_max_eqe = ecount;
13682
13683
13684 if (unlikely(ecount == 0)) {
13685 eq->EQ_no_entry++;
13686
13687 if (phba->intr_type == MSIX)
13688 /* MSI-X treated interrupt served as no EQ share INT */
13689 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13690 "9145 MSI-X interrupt with no EQE\n");
13691 else {
13692 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13693 "9146 ISR interrupt with no EQE\n");
13694 /* Non MSI-X treated on interrupt as EQ share INT */
13695 return IRQ_NONE;
13696 }
13697 }
13698 /* Always clear and re-arm the fast-path EQ */
13699 lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM);
13700 return IRQ_HANDLED;
13701}
13702
James Smart4f774512009-05-22 14:52:35 -040013703/**
James Smart67d12732012-08-03 12:36:13 -040013704 * lpfc_sli4_hba_intr_handler - HBA interrupt handler to SLI-4 device
James Smart4f774512009-05-22 14:52:35 -040013705 * @irq: Interrupt number.
13706 * @dev_id: The device context pointer.
13707 *
13708 * This function is directly called from the PCI layer as an interrupt
13709 * service routine when device with SLI-4 interface spec is enabled with
13710 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
13711 * ring event in the HBA. However, when the device is enabled with either
13712 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
13713 * device-level interrupt handler. When the PCI slot is in error recovery
13714 * or the HBA is undergoing initialization, the interrupt handler will not
13715 * process the interrupt. The SCSI FCP fast-path ring event are handled in
13716 * the intrrupt context. This function is called without any lock held.
13717 * It gets the hbalock to access and update SLI data structures. Note that,
13718 * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
13719 * equal to that of FCP CQ index.
13720 *
James Smart67d12732012-08-03 12:36:13 -040013721 * The link attention and ELS ring attention events are handled
13722 * by the worker thread. The interrupt handler signals the worker thread
13723 * and returns for these events. This function is called without any lock
13724 * held. It gets the hbalock to access and update SLI data structures.
13725 *
James Smart4f774512009-05-22 14:52:35 -040013726 * This function returns IRQ_HANDLED when interrupt is handled else it
13727 * returns IRQ_NONE.
13728 **/
13729irqreturn_t
James Smart67d12732012-08-03 12:36:13 -040013730lpfc_sli4_hba_intr_handler(int irq, void *dev_id)
James Smart4f774512009-05-22 14:52:35 -040013731{
13732 struct lpfc_hba *phba;
James Smart895427b2017-02-12 13:52:30 -080013733 struct lpfc_hba_eq_hdl *hba_eq_hdl;
James Smart4f774512009-05-22 14:52:35 -040013734 struct lpfc_queue *fpeq;
13735 struct lpfc_eqe *eqe;
13736 unsigned long iflag;
13737 int ecount = 0;
Dick Kennedye3e28632017-08-23 16:55:41 -070013738 int ccount = 0;
James Smart895427b2017-02-12 13:52:30 -080013739 int hba_eqidx;
James Smart4f774512009-05-22 14:52:35 -040013740
13741 /* Get the driver's phba structure from the dev_id */
James Smart895427b2017-02-12 13:52:30 -080013742 hba_eq_hdl = (struct lpfc_hba_eq_hdl *)dev_id;
13743 phba = hba_eq_hdl->phba;
13744 hba_eqidx = hba_eq_hdl->idx;
James Smart4f774512009-05-22 14:52:35 -040013745
13746 if (unlikely(!phba))
13747 return IRQ_NONE;
James Smart67d12732012-08-03 12:36:13 -040013748 if (unlikely(!phba->sli4_hba.hba_eq))
James Smart5350d872011-10-10 21:33:49 -040013749 return IRQ_NONE;
James Smart4f774512009-05-22 14:52:35 -040013750
13751 /* Get to the EQ struct associated with this vector */
James Smart895427b2017-02-12 13:52:30 -080013752 fpeq = phba->sli4_hba.hba_eq[hba_eqidx];
James Smart2e90f4b2011-12-13 13:22:37 -050013753 if (unlikely(!fpeq))
13754 return IRQ_NONE;
James Smart4f774512009-05-22 14:52:35 -040013755
James Smartbd2cdd52017-02-12 13:52:33 -080013756#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
13757 if (phba->ktime_on)
13758 fpeq->isr_timestamp = ktime_get_ns();
13759#endif
13760
James Smartba20c852012-08-03 12:36:52 -040013761 if (lpfc_fcp_look_ahead) {
James Smart895427b2017-02-12 13:52:30 -080013762 if (atomic_dec_and_test(&hba_eq_hdl->hba_eq_in_use))
James Smartba20c852012-08-03 12:36:52 -040013763 lpfc_sli4_eq_clr_intr(fpeq);
13764 else {
James Smart895427b2017-02-12 13:52:30 -080013765 atomic_inc(&hba_eq_hdl->hba_eq_in_use);
James Smartba20c852012-08-03 12:36:52 -040013766 return IRQ_NONE;
13767 }
13768 }
13769
James Smart4f774512009-05-22 14:52:35 -040013770 /* Check device state for handling interrupt */
13771 if (unlikely(lpfc_intr_state_check(phba))) {
13772 /* Check again for link_state with lock held */
13773 spin_lock_irqsave(&phba->hbalock, iflag);
13774 if (phba->link_state < LPFC_LINK_DOWN)
13775 /* Flush, clear interrupt, and rearm the EQ */
13776 lpfc_sli4_eq_flush(phba, fpeq);
13777 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smartba20c852012-08-03 12:36:52 -040013778 if (lpfc_fcp_look_ahead)
James Smart895427b2017-02-12 13:52:30 -080013779 atomic_inc(&hba_eq_hdl->hba_eq_in_use);
James Smart4f774512009-05-22 14:52:35 -040013780 return IRQ_NONE;
13781 }
13782
13783 /*
13784 * Process all the event on FCP fast-path EQ
13785 */
13786 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
James Smarteb016562014-09-03 12:58:06 -040013787 if (eqe == NULL)
13788 break;
13789
Dick Kennedye3e28632017-08-23 16:55:41 -070013790 ccount += lpfc_sli4_hba_handle_eqe(phba, eqe, hba_eqidx);
13791 if (!(++ecount % fpeq->entry_repost) ||
13792 ccount > LPFC_MAX_ISR_CQE)
James Smart7869da12017-05-15 15:20:43 -070013793 break;
James Smartb84daac2012-08-03 12:35:13 -040013794 fpeq->EQ_processed++;
James Smart4f774512009-05-22 14:52:35 -040013795 }
13796
James Smartb84daac2012-08-03 12:35:13 -040013797 /* Track the max number of EQEs processed in 1 intr */
13798 if (ecount > fpeq->EQ_max_eqe)
13799 fpeq->EQ_max_eqe = ecount;
13800
James Smart4f774512009-05-22 14:52:35 -040013801 /* Always clear and re-arm the fast-path EQ */
13802 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
13803
13804 if (unlikely(ecount == 0)) {
James Smartb84daac2012-08-03 12:35:13 -040013805 fpeq->EQ_no_entry++;
James Smartba20c852012-08-03 12:36:52 -040013806
13807 if (lpfc_fcp_look_ahead) {
James Smart895427b2017-02-12 13:52:30 -080013808 atomic_inc(&hba_eq_hdl->hba_eq_in_use);
James Smartba20c852012-08-03 12:36:52 -040013809 return IRQ_NONE;
13810 }
13811
James Smart4f774512009-05-22 14:52:35 -040013812 if (phba->intr_type == MSIX)
13813 /* MSI-X treated interrupt served as no EQ share INT */
13814 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13815 "0358 MSI-X interrupt with no EQE\n");
13816 else
13817 /* Non MSI-X treated on interrupt as EQ share INT */
13818 return IRQ_NONE;
13819 }
13820
James Smartba20c852012-08-03 12:36:52 -040013821 if (lpfc_fcp_look_ahead)
James Smart895427b2017-02-12 13:52:30 -080013822 atomic_inc(&hba_eq_hdl->hba_eq_in_use);
13823
James Smart4f774512009-05-22 14:52:35 -040013824 return IRQ_HANDLED;
13825} /* lpfc_sli4_fp_intr_handler */
13826
13827/**
13828 * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
13829 * @irq: Interrupt number.
13830 * @dev_id: The device context pointer.
13831 *
13832 * This function is the device-level interrupt handler to device with SLI-4
13833 * interface spec, called from the PCI layer when either MSI or Pin-IRQ
13834 * interrupt mode is enabled and there is an event in the HBA which requires
13835 * driver attention. This function invokes the slow-path interrupt attention
13836 * handling function and fast-path interrupt attention handling function in
13837 * turn to process the relevant HBA attention events. This function is called
13838 * without any lock held. It gets the hbalock to access and update SLI data
13839 * structures.
13840 *
13841 * This function returns IRQ_HANDLED when interrupt is handled, else it
13842 * returns IRQ_NONE.
13843 **/
13844irqreturn_t
13845lpfc_sli4_intr_handler(int irq, void *dev_id)
13846{
13847 struct lpfc_hba *phba;
James Smart67d12732012-08-03 12:36:13 -040013848 irqreturn_t hba_irq_rc;
13849 bool hba_handled = false;
James Smart895427b2017-02-12 13:52:30 -080013850 int qidx;
James Smart4f774512009-05-22 14:52:35 -040013851
13852 /* Get the driver's phba structure from the dev_id */
13853 phba = (struct lpfc_hba *)dev_id;
13854
13855 if (unlikely(!phba))
13856 return IRQ_NONE;
13857
13858 /*
James Smart4f774512009-05-22 14:52:35 -040013859 * Invoke fast-path host attention interrupt handling as appropriate.
13860 */
James Smart895427b2017-02-12 13:52:30 -080013861 for (qidx = 0; qidx < phba->io_channel_irqs; qidx++) {
James Smart67d12732012-08-03 12:36:13 -040013862 hba_irq_rc = lpfc_sli4_hba_intr_handler(irq,
James Smart895427b2017-02-12 13:52:30 -080013863 &phba->sli4_hba.hba_eq_hdl[qidx]);
James Smart67d12732012-08-03 12:36:13 -040013864 if (hba_irq_rc == IRQ_HANDLED)
13865 hba_handled |= true;
James Smart4f774512009-05-22 14:52:35 -040013866 }
13867
James Smart1ba981f2014-02-20 09:56:45 -050013868 if (phba->cfg_fof) {
13869 hba_irq_rc = lpfc_sli4_fof_intr_handler(irq,
James Smart895427b2017-02-12 13:52:30 -080013870 &phba->sli4_hba.hba_eq_hdl[qidx]);
James Smart1ba981f2014-02-20 09:56:45 -050013871 if (hba_irq_rc == IRQ_HANDLED)
13872 hba_handled |= true;
13873 }
13874
James Smart67d12732012-08-03 12:36:13 -040013875 return (hba_handled == true) ? IRQ_HANDLED : IRQ_NONE;
James Smart4f774512009-05-22 14:52:35 -040013876} /* lpfc_sli4_intr_handler */
13877
13878/**
13879 * lpfc_sli4_queue_free - free a queue structure and associated memory
13880 * @queue: The queue structure to free.
13881 *
Uwe Kleine-Königb5950762010-11-01 15:38:34 -040013882 * This function frees a queue structure and the DMAable memory used for
James Smart4f774512009-05-22 14:52:35 -040013883 * the host resident queue. This function must be called after destroying the
13884 * queue on the HBA.
13885 **/
13886void
13887lpfc_sli4_queue_free(struct lpfc_queue *queue)
13888{
13889 struct lpfc_dmabuf *dmabuf;
13890
13891 if (!queue)
13892 return;
13893
13894 while (!list_empty(&queue->page_list)) {
13895 list_remove_head(&queue->page_list, dmabuf, struct lpfc_dmabuf,
13896 list);
James Smart49198b32010-04-06 15:04:33 -040013897 dma_free_coherent(&queue->phba->pcidev->dev, SLI4_PAGE_SIZE,
James Smart4f774512009-05-22 14:52:35 -040013898 dmabuf->virt, dmabuf->phys);
13899 kfree(dmabuf);
13900 }
James Smart895427b2017-02-12 13:52:30 -080013901 if (queue->rqbp) {
13902 lpfc_free_rq_buffer(queue->phba, queue);
13903 kfree(queue->rqbp);
13904 }
James Smartd1f525a2017-04-21 16:04:55 -070013905
13906 if (!list_empty(&queue->wq_list))
13907 list_del(&queue->wq_list);
13908
James Smart4f774512009-05-22 14:52:35 -040013909 kfree(queue);
13910 return;
13911}
13912
13913/**
13914 * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
13915 * @phba: The HBA that this queue is being created on.
13916 * @entry_size: The size of each queue entry for this queue.
13917 * @entry count: The number of entries that this queue will handle.
13918 *
13919 * This function allocates a queue structure and the DMAable memory used for
13920 * the host resident queue. This function must be called before creating the
13921 * queue on the HBA.
13922 **/
13923struct lpfc_queue *
13924lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t entry_size,
13925 uint32_t entry_count)
13926{
13927 struct lpfc_queue *queue;
13928 struct lpfc_dmabuf *dmabuf;
13929 int x, total_qe_count;
13930 void *dma_pointer;
James Smartcb5172e2010-03-15 11:25:07 -040013931 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
James Smart4f774512009-05-22 14:52:35 -040013932
James Smartcb5172e2010-03-15 11:25:07 -040013933 if (!phba->sli4_hba.pc_sli4_params.supported)
13934 hw_page_size = SLI4_PAGE_SIZE;
13935
James Smart4f774512009-05-22 14:52:35 -040013936 queue = kzalloc(sizeof(struct lpfc_queue) +
13937 (sizeof(union sli4_qe) * entry_count), GFP_KERNEL);
13938 if (!queue)
13939 return NULL;
James Smartcb5172e2010-03-15 11:25:07 -040013940 queue->page_count = (ALIGN(entry_size * entry_count,
13941 hw_page_size))/hw_page_size;
James Smart895427b2017-02-12 13:52:30 -080013942
13943 /* If needed, Adjust page count to match the max the adapter supports */
Ewan D. Milne0840feb2018-12-13 15:25:16 -050013944 if (phba->sli4_hba.pc_sli4_params.wqpcnt &&
13945 (queue->page_count > phba->sli4_hba.pc_sli4_params.wqpcnt))
James Smart895427b2017-02-12 13:52:30 -080013946 queue->page_count = phba->sli4_hba.pc_sli4_params.wqpcnt;
13947
James Smart4f774512009-05-22 14:52:35 -040013948 INIT_LIST_HEAD(&queue->list);
James Smart895427b2017-02-12 13:52:30 -080013949 INIT_LIST_HEAD(&queue->wq_list);
James Smart4f774512009-05-22 14:52:35 -040013950 INIT_LIST_HEAD(&queue->page_list);
13951 INIT_LIST_HEAD(&queue->child_list);
13952 for (x = 0, total_qe_count = 0; x < queue->page_count; x++) {
13953 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
13954 if (!dmabuf)
13955 goto out_fail;
Joe Perches1aee3832014-09-03 12:56:12 -040013956 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
13957 hw_page_size, &dmabuf->phys,
13958 GFP_KERNEL);
James Smart4f774512009-05-22 14:52:35 -040013959 if (!dmabuf->virt) {
13960 kfree(dmabuf);
13961 goto out_fail;
13962 }
13963 dmabuf->buffer_tag = x;
13964 list_add_tail(&dmabuf->list, &queue->page_list);
13965 /* initialize queue's entry array */
13966 dma_pointer = dmabuf->virt;
13967 for (; total_qe_count < entry_count &&
James Smartcb5172e2010-03-15 11:25:07 -040013968 dma_pointer < (hw_page_size + dmabuf->virt);
James Smart4f774512009-05-22 14:52:35 -040013969 total_qe_count++, dma_pointer += entry_size) {
13970 queue->qe[total_qe_count].address = dma_pointer;
13971 }
13972 }
13973 queue->entry_size = entry_size;
13974 queue->entry_count = entry_count;
13975 queue->phba = phba;
13976
James Smart64eb4dc2017-05-15 15:20:49 -070013977 /* entry_repost will be set during q creation */
13978
James Smart4f774512009-05-22 14:52:35 -040013979 return queue;
13980out_fail:
13981 lpfc_sli4_queue_free(queue);
13982 return NULL;
13983}
13984
13985/**
James Smart962bc512013-01-03 15:44:00 -050013986 * lpfc_dual_chute_pci_bar_map - Map pci base address register to host memory
13987 * @phba: HBA structure that indicates port to create a queue on.
13988 * @pci_barset: PCI BAR set flag.
13989 *
13990 * This function shall perform iomap of the specified PCI BAR address to host
13991 * memory address if not already done so and return it. The returned host
13992 * memory address can be NULL.
13993 */
13994static void __iomem *
13995lpfc_dual_chute_pci_bar_map(struct lpfc_hba *phba, uint16_t pci_barset)
13996{
James Smart962bc512013-01-03 15:44:00 -050013997 if (!phba->pcidev)
13998 return NULL;
James Smart962bc512013-01-03 15:44:00 -050013999
14000 switch (pci_barset) {
14001 case WQ_PCI_BAR_0_AND_1:
James Smart962bc512013-01-03 15:44:00 -050014002 return phba->pci_bar0_memmap_p;
14003 case WQ_PCI_BAR_2_AND_3:
James Smart962bc512013-01-03 15:44:00 -050014004 return phba->pci_bar2_memmap_p;
14005 case WQ_PCI_BAR_4_AND_5:
James Smart962bc512013-01-03 15:44:00 -050014006 return phba->pci_bar4_memmap_p;
14007 default:
14008 break;
14009 }
14010 return NULL;
14011}
14012
14013/**
James Smart895427b2017-02-12 13:52:30 -080014014 * lpfc_modify_hba_eq_delay - Modify Delay Multiplier on FCP EQs
James Smart173edbb2012-06-12 13:54:50 -040014015 * @phba: HBA structure that indicates port to create a queue on.
14016 * @startq: The starting FCP EQ to modify
14017 *
14018 * This function sends an MODIFY_EQ_DELAY mailbox command to the HBA.
James Smart43140ca2017-03-04 09:30:34 -080014019 * The command allows up to LPFC_MAX_EQ_DELAY_EQID_CNT EQ ID's to be
14020 * updated in one mailbox command.
James Smart173edbb2012-06-12 13:54:50 -040014021 *
14022 * The @phba struct is used to send mailbox command to HBA. The @startq
14023 * is used to get the starting FCP EQ to change.
14024 * This function is asynchronous and will wait for the mailbox
14025 * command to finish before continuing.
14026 *
14027 * On success this function will return a zero. If unable to allocate enough
14028 * memory this function will return -ENOMEM. If the queue create mailbox command
14029 * fails this function will return -ENXIO.
14030 **/
James Smarta2fc4aef2014-09-03 12:57:55 -040014031int
James Smart0cf07f842017-06-01 21:07:10 -070014032lpfc_modify_hba_eq_delay(struct lpfc_hba *phba, uint32_t startq,
14033 uint32_t numq, uint32_t imax)
James Smart173edbb2012-06-12 13:54:50 -040014034{
14035 struct lpfc_mbx_modify_eq_delay *eq_delay;
14036 LPFC_MBOXQ_t *mbox;
14037 struct lpfc_queue *eq;
14038 int cnt, rc, length, status = 0;
14039 uint32_t shdr_status, shdr_add_status;
James Smart0cf07f842017-06-01 21:07:10 -070014040 uint32_t result, val;
James Smart895427b2017-02-12 13:52:30 -080014041 int qidx;
James Smart173edbb2012-06-12 13:54:50 -040014042 union lpfc_sli4_cfg_shdr *shdr;
14043 uint16_t dmult;
14044
James Smart895427b2017-02-12 13:52:30 -080014045 if (startq >= phba->io_channel_irqs)
James Smart173edbb2012-06-12 13:54:50 -040014046 return 0;
14047
14048 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14049 if (!mbox)
14050 return -ENOMEM;
14051 length = (sizeof(struct lpfc_mbx_modify_eq_delay) -
14052 sizeof(struct lpfc_sli4_cfg_mhdr));
14053 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14054 LPFC_MBOX_OPCODE_MODIFY_EQ_DELAY,
14055 length, LPFC_SLI4_MBX_EMBED);
14056 eq_delay = &mbox->u.mqe.un.eq_delay;
14057
14058 /* Calculate delay multiper from maximum interrupt per second */
James Smart0cf07f842017-06-01 21:07:10 -070014059 result = imax / phba->io_channel_irqs;
James Smart895427b2017-02-12 13:52:30 -080014060 if (result > LPFC_DMULT_CONST || result == 0)
James Smartee020062012-09-29 11:28:52 -040014061 dmult = 0;
14062 else
14063 dmult = LPFC_DMULT_CONST/result - 1;
James Smart0cf07f842017-06-01 21:07:10 -070014064 if (dmult > LPFC_DMULT_MAX)
14065 dmult = LPFC_DMULT_MAX;
James Smart173edbb2012-06-12 13:54:50 -040014066
14067 cnt = 0;
James Smart895427b2017-02-12 13:52:30 -080014068 for (qidx = startq; qidx < phba->io_channel_irqs; qidx++) {
14069 eq = phba->sli4_hba.hba_eq[qidx];
James Smart173edbb2012-06-12 13:54:50 -040014070 if (!eq)
14071 continue;
James Smart0cf07f842017-06-01 21:07:10 -070014072 eq->q_mode = imax;
James Smart173edbb2012-06-12 13:54:50 -040014073 eq_delay->u.request.eq[cnt].eq_id = eq->queue_id;
14074 eq_delay->u.request.eq[cnt].phase = 0;
14075 eq_delay->u.request.eq[cnt].delay_multi = dmult;
14076 cnt++;
James Smart0cf07f842017-06-01 21:07:10 -070014077
14078 /* q_mode is only used for auto_imax */
14079 if (phba->sli.sli_flag & LPFC_SLI_USE_EQDR) {
14080 /* Use EQ Delay Register method for q_mode */
14081
14082 /* Convert for EQ Delay register */
14083 val = phba->cfg_fcp_imax;
14084 if (val) {
14085 /* First, interrupts per sec per EQ */
14086 val = phba->cfg_fcp_imax /
14087 phba->io_channel_irqs;
14088
14089 /* us delay between each interrupt */
14090 val = LPFC_SEC_TO_USEC / val;
14091 }
14092 eq->q_mode = val;
14093 } else {
14094 eq->q_mode = imax;
14095 }
14096
14097 if (cnt >= numq)
James Smart173edbb2012-06-12 13:54:50 -040014098 break;
14099 }
14100 eq_delay->u.request.num_eq = cnt;
14101
14102 mbox->vport = phba->pport;
14103 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14104 mbox->context1 = NULL;
14105 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14106 shdr = (union lpfc_sli4_cfg_shdr *) &eq_delay->header.cfg_shdr;
14107 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14108 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14109 if (shdr_status || shdr_add_status || rc) {
14110 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14111 "2512 MODIFY_EQ_DELAY mailbox failed with "
14112 "status x%x add_status x%x, mbx status x%x\n",
14113 shdr_status, shdr_add_status, rc);
14114 status = -ENXIO;
14115 }
14116 mempool_free(mbox, phba->mbox_mem_pool);
14117 return status;
14118}
14119
14120/**
James Smart4f774512009-05-22 14:52:35 -040014121 * lpfc_eq_create - Create an Event Queue on the HBA
14122 * @phba: HBA structure that indicates port to create a queue on.
14123 * @eq: The queue structure to use to create the event queue.
14124 * @imax: The maximum interrupt per second limit.
14125 *
14126 * This function creates an event queue, as detailed in @eq, on a port,
14127 * described by @phba by sending an EQ_CREATE mailbox command to the HBA.
14128 *
14129 * The @phba struct is used to send mailbox command to HBA. The @eq struct
14130 * is used to get the entry count and entry size that are necessary to
14131 * determine the number of pages to allocate and use for this queue. This
14132 * function will send the EQ_CREATE mailbox command to the HBA to setup the
14133 * event queue. This function is asynchronous and will wait for the mailbox
14134 * command to finish before continuing.
14135 *
14136 * On success this function will return a zero. If unable to allocate enough
James Smartd439d282010-09-29 11:18:45 -040014137 * memory this function will return -ENOMEM. If the queue create mailbox command
14138 * fails this function will return -ENXIO.
James Smart4f774512009-05-22 14:52:35 -040014139 **/
James Smarta2fc4aef2014-09-03 12:57:55 -040014140int
James Smartee020062012-09-29 11:28:52 -040014141lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint32_t imax)
James Smart4f774512009-05-22 14:52:35 -040014142{
14143 struct lpfc_mbx_eq_create *eq_create;
14144 LPFC_MBOXQ_t *mbox;
14145 int rc, length, status = 0;
14146 struct lpfc_dmabuf *dmabuf;
14147 uint32_t shdr_status, shdr_add_status;
14148 union lpfc_sli4_cfg_shdr *shdr;
14149 uint16_t dmult;
James Smart49198b32010-04-06 15:04:33 -040014150 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
14151
James Smart2e90f4b2011-12-13 13:22:37 -050014152 /* sanity check on queue memory */
14153 if (!eq)
14154 return -ENODEV;
James Smart49198b32010-04-06 15:04:33 -040014155 if (!phba->sli4_hba.pc_sli4_params.supported)
14156 hw_page_size = SLI4_PAGE_SIZE;
James Smart4f774512009-05-22 14:52:35 -040014157
14158 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14159 if (!mbox)
14160 return -ENOMEM;
14161 length = (sizeof(struct lpfc_mbx_eq_create) -
14162 sizeof(struct lpfc_sli4_cfg_mhdr));
14163 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14164 LPFC_MBOX_OPCODE_EQ_CREATE,
14165 length, LPFC_SLI4_MBX_EMBED);
14166 eq_create = &mbox->u.mqe.un.eq_create;
14167 bf_set(lpfc_mbx_eq_create_num_pages, &eq_create->u.request,
14168 eq->page_count);
14169 bf_set(lpfc_eq_context_size, &eq_create->u.request.context,
14170 LPFC_EQE_SIZE);
14171 bf_set(lpfc_eq_context_valid, &eq_create->u.request.context, 1);
James Smart2c9c5a02015-04-07 15:07:15 -040014172 /* don't setup delay multiplier using EQ_CREATE */
14173 dmult = 0;
James Smart4f774512009-05-22 14:52:35 -040014174 bf_set(lpfc_eq_context_delay_multi, &eq_create->u.request.context,
14175 dmult);
14176 switch (eq->entry_count) {
14177 default:
14178 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14179 "0360 Unsupported EQ count. (%d)\n",
14180 eq->entry_count);
14181 if (eq->entry_count < 256)
14182 return -EINVAL;
14183 /* otherwise default to smallest count (drop through) */
14184 case 256:
14185 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14186 LPFC_EQ_CNT_256);
14187 break;
14188 case 512:
14189 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14190 LPFC_EQ_CNT_512);
14191 break;
14192 case 1024:
14193 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14194 LPFC_EQ_CNT_1024);
14195 break;
14196 case 2048:
14197 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14198 LPFC_EQ_CNT_2048);
14199 break;
14200 case 4096:
14201 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14202 LPFC_EQ_CNT_4096);
14203 break;
14204 }
14205 list_for_each_entry(dmabuf, &eq->page_list, list) {
James Smart49198b32010-04-06 15:04:33 -040014206 memset(dmabuf->virt, 0, hw_page_size);
James Smart4f774512009-05-22 14:52:35 -040014207 eq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
14208 putPaddrLow(dmabuf->phys);
14209 eq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
14210 putPaddrHigh(dmabuf->phys);
14211 }
14212 mbox->vport = phba->pport;
14213 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14214 mbox->context1 = NULL;
14215 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14216 shdr = (union lpfc_sli4_cfg_shdr *) &eq_create->header.cfg_shdr;
14217 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14218 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14219 if (shdr_status || shdr_add_status || rc) {
14220 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14221 "2500 EQ_CREATE mailbox failed with "
14222 "status x%x add_status x%x, mbx status x%x\n",
14223 shdr_status, shdr_add_status, rc);
14224 status = -ENXIO;
14225 }
14226 eq->type = LPFC_EQ;
14227 eq->subtype = LPFC_NONE;
14228 eq->queue_id = bf_get(lpfc_mbx_eq_create_q_id, &eq_create->u.response);
14229 if (eq->queue_id == 0xFFFF)
14230 status = -ENXIO;
14231 eq->host_index = 0;
14232 eq->hba_index = 0;
James Smart64eb4dc2017-05-15 15:20:49 -070014233 eq->entry_repost = LPFC_EQ_REPOST;
James Smart4f774512009-05-22 14:52:35 -040014234
James Smart8fa38512009-07-19 10:01:03 -040014235 mempool_free(mbox, phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040014236 return status;
14237}
14238
14239/**
14240 * lpfc_cq_create - Create a Completion Queue on the HBA
14241 * @phba: HBA structure that indicates port to create a queue on.
14242 * @cq: The queue structure to use to create the completion queue.
14243 * @eq: The event queue to bind this completion queue to.
14244 *
14245 * This function creates a completion queue, as detailed in @wq, on a port,
14246 * described by @phba by sending a CQ_CREATE mailbox command to the HBA.
14247 *
14248 * The @phba struct is used to send mailbox command to HBA. The @cq struct
14249 * is used to get the entry count and entry size that are necessary to
14250 * determine the number of pages to allocate and use for this queue. The @eq
14251 * is used to indicate which event queue to bind this completion queue to. This
14252 * function will send the CQ_CREATE mailbox command to the HBA to setup the
14253 * completion queue. This function is asynchronous and will wait for the mailbox
14254 * command to finish before continuing.
14255 *
14256 * On success this function will return a zero. If unable to allocate enough
James Smartd439d282010-09-29 11:18:45 -040014257 * memory this function will return -ENOMEM. If the queue create mailbox command
14258 * fails this function will return -ENXIO.
James Smart4f774512009-05-22 14:52:35 -040014259 **/
James Smarta2fc4aef2014-09-03 12:57:55 -040014260int
James Smart4f774512009-05-22 14:52:35 -040014261lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
14262 struct lpfc_queue *eq, uint32_t type, uint32_t subtype)
14263{
14264 struct lpfc_mbx_cq_create *cq_create;
14265 struct lpfc_dmabuf *dmabuf;
14266 LPFC_MBOXQ_t *mbox;
14267 int rc, length, status = 0;
14268 uint32_t shdr_status, shdr_add_status;
14269 union lpfc_sli4_cfg_shdr *shdr;
James Smart49198b32010-04-06 15:04:33 -040014270 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
14271
James Smart2e90f4b2011-12-13 13:22:37 -050014272 /* sanity check on queue memory */
14273 if (!cq || !eq)
14274 return -ENODEV;
James Smart49198b32010-04-06 15:04:33 -040014275 if (!phba->sli4_hba.pc_sli4_params.supported)
14276 hw_page_size = SLI4_PAGE_SIZE;
14277
James Smart4f774512009-05-22 14:52:35 -040014278 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14279 if (!mbox)
14280 return -ENOMEM;
14281 length = (sizeof(struct lpfc_mbx_cq_create) -
14282 sizeof(struct lpfc_sli4_cfg_mhdr));
14283 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14284 LPFC_MBOX_OPCODE_CQ_CREATE,
14285 length, LPFC_SLI4_MBX_EMBED);
14286 cq_create = &mbox->u.mqe.un.cq_create;
James Smart5a6f1332011-03-11 16:05:35 -050014287 shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr;
James Smart4f774512009-05-22 14:52:35 -040014288 bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request,
14289 cq->page_count);
14290 bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1);
14291 bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1);
James Smart5a6f1332011-03-11 16:05:35 -050014292 bf_set(lpfc_mbox_hdr_version, &shdr->request,
14293 phba->sli4_hba.pc_sli4_params.cqv);
14294 if (phba->sli4_hba.pc_sli4_params.cqv == LPFC_Q_CREATE_VERSION_2) {
James Smartc31098c2011-04-16 11:03:33 -040014295 /* FW only supports 1. Should be PAGE_SIZE/SLI4_PAGE_SIZE */
14296 bf_set(lpfc_mbx_cq_create_page_size, &cq_create->u.request, 1);
James Smart5a6f1332011-03-11 16:05:35 -050014297 bf_set(lpfc_cq_eq_id_2, &cq_create->u.request.context,
14298 eq->queue_id);
14299 } else {
14300 bf_set(lpfc_cq_eq_id, &cq_create->u.request.context,
14301 eq->queue_id);
14302 }
James Smart4f774512009-05-22 14:52:35 -040014303 switch (cq->entry_count) {
14304 default:
14305 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smart2ea259e2017-02-12 13:52:27 -080014306 "0361 Unsupported CQ count: "
James Smart64eb4dc2017-05-15 15:20:49 -070014307 "entry cnt %d sz %d pg cnt %d\n",
James Smart2ea259e2017-02-12 13:52:27 -080014308 cq->entry_count, cq->entry_size,
James Smart64eb4dc2017-05-15 15:20:49 -070014309 cq->page_count);
James Smart4f4c1862012-06-12 13:54:02 -040014310 if (cq->entry_count < 256) {
14311 status = -EINVAL;
14312 goto out;
14313 }
James Smart4f774512009-05-22 14:52:35 -040014314 /* otherwise default to smallest count (drop through) */
14315 case 256:
14316 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
14317 LPFC_CQ_CNT_256);
14318 break;
14319 case 512:
14320 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
14321 LPFC_CQ_CNT_512);
14322 break;
14323 case 1024:
14324 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
14325 LPFC_CQ_CNT_1024);
14326 break;
14327 }
14328 list_for_each_entry(dmabuf, &cq->page_list, list) {
James Smart49198b32010-04-06 15:04:33 -040014329 memset(dmabuf->virt, 0, hw_page_size);
James Smart4f774512009-05-22 14:52:35 -040014330 cq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
14331 putPaddrLow(dmabuf->phys);
14332 cq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
14333 putPaddrHigh(dmabuf->phys);
14334 }
14335 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14336
14337 /* The IOCTL status is embedded in the mailbox subheader. */
James Smart4f774512009-05-22 14:52:35 -040014338 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14339 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14340 if (shdr_status || shdr_add_status || rc) {
14341 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14342 "2501 CQ_CREATE mailbox failed with "
14343 "status x%x add_status x%x, mbx status x%x\n",
14344 shdr_status, shdr_add_status, rc);
14345 status = -ENXIO;
14346 goto out;
14347 }
14348 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
14349 if (cq->queue_id == 0xFFFF) {
14350 status = -ENXIO;
14351 goto out;
14352 }
14353 /* link the cq onto the parent eq child list */
14354 list_add_tail(&cq->list, &eq->child_list);
14355 /* Set up completion queue's type and subtype */
14356 cq->type = type;
14357 cq->subtype = subtype;
14358 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
James Smart2a622bf2011-02-16 12:40:06 -050014359 cq->assoc_qid = eq->queue_id;
James Smart4f774512009-05-22 14:52:35 -040014360 cq->host_index = 0;
14361 cq->hba_index = 0;
James Smart64eb4dc2017-05-15 15:20:49 -070014362 cq->entry_repost = LPFC_CQ_REPOST;
James Smart4f774512009-05-22 14:52:35 -040014363
James Smart8fa38512009-07-19 10:01:03 -040014364out:
14365 mempool_free(mbox, phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040014366 return status;
14367}
14368
14369/**
James Smart2d7dbc42017-02-12 13:52:35 -080014370 * lpfc_cq_create_set - Create a set of Completion Queues on the HBA for MRQ
14371 * @phba: HBA structure that indicates port to create a queue on.
14372 * @cqp: The queue structure array to use to create the completion queues.
14373 * @eqp: The event queue array to bind these completion queues to.
14374 *
14375 * This function creates a set of completion queue, s to support MRQ
14376 * as detailed in @cqp, on a port,
14377 * described by @phba by sending a CREATE_CQ_SET mailbox command to the HBA.
14378 *
14379 * The @phba struct is used to send mailbox command to HBA. The @cq struct
14380 * is used to get the entry count and entry size that are necessary to
14381 * determine the number of pages to allocate and use for this queue. The @eq
14382 * is used to indicate which event queue to bind this completion queue to. This
14383 * function will send the CREATE_CQ_SET mailbox command to the HBA to setup the
14384 * completion queue. This function is asynchronous and will wait for the mailbox
14385 * command to finish before continuing.
14386 *
14387 * On success this function will return a zero. If unable to allocate enough
14388 * memory this function will return -ENOMEM. If the queue create mailbox command
14389 * fails this function will return -ENXIO.
14390 **/
14391int
14392lpfc_cq_create_set(struct lpfc_hba *phba, struct lpfc_queue **cqp,
14393 struct lpfc_queue **eqp, uint32_t type, uint32_t subtype)
14394{
14395 struct lpfc_queue *cq;
14396 struct lpfc_queue *eq;
14397 struct lpfc_mbx_cq_create_set *cq_set;
14398 struct lpfc_dmabuf *dmabuf;
14399 LPFC_MBOXQ_t *mbox;
14400 int rc, length, alloclen, status = 0;
14401 int cnt, idx, numcq, page_idx = 0;
14402 uint32_t shdr_status, shdr_add_status;
14403 union lpfc_sli4_cfg_shdr *shdr;
14404 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
14405
14406 /* sanity check on queue memory */
14407 numcq = phba->cfg_nvmet_mrq;
14408 if (!cqp || !eqp || !numcq)
14409 return -ENODEV;
14410 if (!phba->sli4_hba.pc_sli4_params.supported)
14411 hw_page_size = SLI4_PAGE_SIZE;
14412
14413 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14414 if (!mbox)
14415 return -ENOMEM;
14416
14417 length = sizeof(struct lpfc_mbx_cq_create_set);
14418 length += ((numcq * cqp[0]->page_count) *
14419 sizeof(struct dma_address));
14420 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14421 LPFC_MBOX_OPCODE_FCOE_CQ_CREATE_SET, length,
14422 LPFC_SLI4_MBX_NEMBED);
14423 if (alloclen < length) {
14424 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14425 "3098 Allocated DMA memory size (%d) is "
14426 "less than the requested DMA memory size "
14427 "(%d)\n", alloclen, length);
14428 status = -ENOMEM;
14429 goto out;
14430 }
14431 cq_set = mbox->sge_array->addr[0];
14432 shdr = (union lpfc_sli4_cfg_shdr *)&cq_set->cfg_shdr;
14433 bf_set(lpfc_mbox_hdr_version, &shdr->request, 0);
14434
14435 for (idx = 0; idx < numcq; idx++) {
14436 cq = cqp[idx];
14437 eq = eqp[idx];
14438 if (!cq || !eq) {
14439 status = -ENOMEM;
14440 goto out;
14441 }
14442
14443 switch (idx) {
14444 case 0:
14445 bf_set(lpfc_mbx_cq_create_set_page_size,
14446 &cq_set->u.request,
14447 (hw_page_size / SLI4_PAGE_SIZE));
14448 bf_set(lpfc_mbx_cq_create_set_num_pages,
14449 &cq_set->u.request, cq->page_count);
14450 bf_set(lpfc_mbx_cq_create_set_evt,
14451 &cq_set->u.request, 1);
14452 bf_set(lpfc_mbx_cq_create_set_valid,
14453 &cq_set->u.request, 1);
14454 bf_set(lpfc_mbx_cq_create_set_cqe_size,
14455 &cq_set->u.request, 0);
14456 bf_set(lpfc_mbx_cq_create_set_num_cq,
14457 &cq_set->u.request, numcq);
14458 switch (cq->entry_count) {
14459 default:
14460 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14461 "3118 Bad CQ count. (%d)\n",
14462 cq->entry_count);
14463 if (cq->entry_count < 256) {
14464 status = -EINVAL;
14465 goto out;
14466 }
14467 /* otherwise default to smallest (drop thru) */
14468 case 256:
14469 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
14470 &cq_set->u.request, LPFC_CQ_CNT_256);
14471 break;
14472 case 512:
14473 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
14474 &cq_set->u.request, LPFC_CQ_CNT_512);
14475 break;
14476 case 1024:
14477 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
14478 &cq_set->u.request, LPFC_CQ_CNT_1024);
14479 break;
14480 }
14481 bf_set(lpfc_mbx_cq_create_set_eq_id0,
14482 &cq_set->u.request, eq->queue_id);
14483 break;
14484 case 1:
14485 bf_set(lpfc_mbx_cq_create_set_eq_id1,
14486 &cq_set->u.request, eq->queue_id);
14487 break;
14488 case 2:
14489 bf_set(lpfc_mbx_cq_create_set_eq_id2,
14490 &cq_set->u.request, eq->queue_id);
14491 break;
14492 case 3:
14493 bf_set(lpfc_mbx_cq_create_set_eq_id3,
14494 &cq_set->u.request, eq->queue_id);
14495 break;
14496 case 4:
14497 bf_set(lpfc_mbx_cq_create_set_eq_id4,
14498 &cq_set->u.request, eq->queue_id);
14499 break;
14500 case 5:
14501 bf_set(lpfc_mbx_cq_create_set_eq_id5,
14502 &cq_set->u.request, eq->queue_id);
14503 break;
14504 case 6:
14505 bf_set(lpfc_mbx_cq_create_set_eq_id6,
14506 &cq_set->u.request, eq->queue_id);
14507 break;
14508 case 7:
14509 bf_set(lpfc_mbx_cq_create_set_eq_id7,
14510 &cq_set->u.request, eq->queue_id);
14511 break;
14512 case 8:
14513 bf_set(lpfc_mbx_cq_create_set_eq_id8,
14514 &cq_set->u.request, eq->queue_id);
14515 break;
14516 case 9:
14517 bf_set(lpfc_mbx_cq_create_set_eq_id9,
14518 &cq_set->u.request, eq->queue_id);
14519 break;
14520 case 10:
14521 bf_set(lpfc_mbx_cq_create_set_eq_id10,
14522 &cq_set->u.request, eq->queue_id);
14523 break;
14524 case 11:
14525 bf_set(lpfc_mbx_cq_create_set_eq_id11,
14526 &cq_set->u.request, eq->queue_id);
14527 break;
14528 case 12:
14529 bf_set(lpfc_mbx_cq_create_set_eq_id12,
14530 &cq_set->u.request, eq->queue_id);
14531 break;
14532 case 13:
14533 bf_set(lpfc_mbx_cq_create_set_eq_id13,
14534 &cq_set->u.request, eq->queue_id);
14535 break;
14536 case 14:
14537 bf_set(lpfc_mbx_cq_create_set_eq_id14,
14538 &cq_set->u.request, eq->queue_id);
14539 break;
14540 case 15:
14541 bf_set(lpfc_mbx_cq_create_set_eq_id15,
14542 &cq_set->u.request, eq->queue_id);
14543 break;
14544 }
14545
14546 /* link the cq onto the parent eq child list */
14547 list_add_tail(&cq->list, &eq->child_list);
14548 /* Set up completion queue's type and subtype */
14549 cq->type = type;
14550 cq->subtype = subtype;
14551 cq->assoc_qid = eq->queue_id;
14552 cq->host_index = 0;
14553 cq->hba_index = 0;
James Smart64eb4dc2017-05-15 15:20:49 -070014554 cq->entry_repost = LPFC_CQ_REPOST;
James Smart2d7dbc42017-02-12 13:52:35 -080014555
14556 rc = 0;
14557 list_for_each_entry(dmabuf, &cq->page_list, list) {
14558 memset(dmabuf->virt, 0, hw_page_size);
14559 cnt = page_idx + dmabuf->buffer_tag;
14560 cq_set->u.request.page[cnt].addr_lo =
14561 putPaddrLow(dmabuf->phys);
14562 cq_set->u.request.page[cnt].addr_hi =
14563 putPaddrHigh(dmabuf->phys);
14564 rc++;
14565 }
14566 page_idx += rc;
14567 }
14568
14569 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14570
14571 /* The IOCTL status is embedded in the mailbox subheader. */
14572 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14573 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14574 if (shdr_status || shdr_add_status || rc) {
14575 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14576 "3119 CQ_CREATE_SET mailbox failed with "
14577 "status x%x add_status x%x, mbx status x%x\n",
14578 shdr_status, shdr_add_status, rc);
14579 status = -ENXIO;
14580 goto out;
14581 }
14582 rc = bf_get(lpfc_mbx_cq_create_set_base_id, &cq_set->u.response);
14583 if (rc == 0xFFFF) {
14584 status = -ENXIO;
14585 goto out;
14586 }
14587
14588 for (idx = 0; idx < numcq; idx++) {
14589 cq = cqp[idx];
14590 cq->queue_id = rc + idx;
14591 }
14592
14593out:
14594 lpfc_sli4_mbox_cmd_free(phba, mbox);
14595 return status;
14596}
14597
14598/**
James Smartb19a0612010-04-06 14:48:51 -040014599 * lpfc_mq_create_fb_init - Send MCC_CREATE without async events registration
James Smart04c68492009-05-22 14:52:52 -040014600 * @phba: HBA structure that indicates port to create a queue on.
14601 * @mq: The queue structure to use to create the mailbox queue.
James Smartb19a0612010-04-06 14:48:51 -040014602 * @mbox: An allocated pointer to type LPFC_MBOXQ_t
14603 * @cq: The completion queue to associate with this cq.
James Smart04c68492009-05-22 14:52:52 -040014604 *
James Smartb19a0612010-04-06 14:48:51 -040014605 * This function provides failback (fb) functionality when the
14606 * mq_create_ext fails on older FW generations. It's purpose is identical
14607 * to mq_create_ext otherwise.
James Smart04c68492009-05-22 14:52:52 -040014608 *
James Smartb19a0612010-04-06 14:48:51 -040014609 * This routine cannot fail as all attributes were previously accessed and
14610 * initialized in mq_create_ext.
James Smart04c68492009-05-22 14:52:52 -040014611 **/
James Smartb19a0612010-04-06 14:48:51 -040014612static void
14613lpfc_mq_create_fb_init(struct lpfc_hba *phba, struct lpfc_queue *mq,
14614 LPFC_MBOXQ_t *mbox, struct lpfc_queue *cq)
James Smart04c68492009-05-22 14:52:52 -040014615{
14616 struct lpfc_mbx_mq_create *mq_create;
14617 struct lpfc_dmabuf *dmabuf;
James Smartb19a0612010-04-06 14:48:51 -040014618 int length;
James Smart04c68492009-05-22 14:52:52 -040014619
James Smart04c68492009-05-22 14:52:52 -040014620 length = (sizeof(struct lpfc_mbx_mq_create) -
14621 sizeof(struct lpfc_sli4_cfg_mhdr));
14622 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14623 LPFC_MBOX_OPCODE_MQ_CREATE,
14624 length, LPFC_SLI4_MBX_EMBED);
14625 mq_create = &mbox->u.mqe.un.mq_create;
14626 bf_set(lpfc_mbx_mq_create_num_pages, &mq_create->u.request,
James Smartb19a0612010-04-06 14:48:51 -040014627 mq->page_count);
James Smart04c68492009-05-22 14:52:52 -040014628 bf_set(lpfc_mq_context_cq_id, &mq_create->u.request.context,
James Smartb19a0612010-04-06 14:48:51 -040014629 cq->queue_id);
James Smart04c68492009-05-22 14:52:52 -040014630 bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1);
14631 switch (mq->entry_count) {
James Smart04c68492009-05-22 14:52:52 -040014632 case 16:
James Smart5a6f1332011-03-11 16:05:35 -050014633 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
14634 LPFC_MQ_RING_SIZE_16);
James Smart04c68492009-05-22 14:52:52 -040014635 break;
14636 case 32:
James Smart5a6f1332011-03-11 16:05:35 -050014637 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
14638 LPFC_MQ_RING_SIZE_32);
James Smart04c68492009-05-22 14:52:52 -040014639 break;
14640 case 64:
James Smart5a6f1332011-03-11 16:05:35 -050014641 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
14642 LPFC_MQ_RING_SIZE_64);
James Smart04c68492009-05-22 14:52:52 -040014643 break;
14644 case 128:
James Smart5a6f1332011-03-11 16:05:35 -050014645 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
14646 LPFC_MQ_RING_SIZE_128);
James Smart04c68492009-05-22 14:52:52 -040014647 break;
14648 }
14649 list_for_each_entry(dmabuf, &mq->page_list, list) {
14650 mq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
James Smartb19a0612010-04-06 14:48:51 -040014651 putPaddrLow(dmabuf->phys);
James Smart04c68492009-05-22 14:52:52 -040014652 mq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
James Smartb19a0612010-04-06 14:48:51 -040014653 putPaddrHigh(dmabuf->phys);
14654 }
14655}
14656
14657/**
14658 * lpfc_mq_create - Create a mailbox Queue on the HBA
14659 * @phba: HBA structure that indicates port to create a queue on.
14660 * @mq: The queue structure to use to create the mailbox queue.
14661 * @cq: The completion queue to associate with this cq.
14662 * @subtype: The queue's subtype.
14663 *
14664 * This function creates a mailbox queue, as detailed in @mq, on a port,
14665 * described by @phba by sending a MQ_CREATE mailbox command to the HBA.
14666 *
14667 * The @phba struct is used to send mailbox command to HBA. The @cq struct
14668 * is used to get the entry count and entry size that are necessary to
14669 * determine the number of pages to allocate and use for this queue. This
14670 * function will send the MQ_CREATE mailbox command to the HBA to setup the
14671 * mailbox queue. This function is asynchronous and will wait for the mailbox
14672 * command to finish before continuing.
14673 *
14674 * On success this function will return a zero. If unable to allocate enough
James Smartd439d282010-09-29 11:18:45 -040014675 * memory this function will return -ENOMEM. If the queue create mailbox command
14676 * fails this function will return -ENXIO.
James Smartb19a0612010-04-06 14:48:51 -040014677 **/
14678int32_t
14679lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
14680 struct lpfc_queue *cq, uint32_t subtype)
14681{
14682 struct lpfc_mbx_mq_create *mq_create;
14683 struct lpfc_mbx_mq_create_ext *mq_create_ext;
14684 struct lpfc_dmabuf *dmabuf;
14685 LPFC_MBOXQ_t *mbox;
14686 int rc, length, status = 0;
14687 uint32_t shdr_status, shdr_add_status;
14688 union lpfc_sli4_cfg_shdr *shdr;
James Smart49198b32010-04-06 15:04:33 -040014689 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
James Smartb19a0612010-04-06 14:48:51 -040014690
James Smart2e90f4b2011-12-13 13:22:37 -050014691 /* sanity check on queue memory */
14692 if (!mq || !cq)
14693 return -ENODEV;
James Smart49198b32010-04-06 15:04:33 -040014694 if (!phba->sli4_hba.pc_sli4_params.supported)
14695 hw_page_size = SLI4_PAGE_SIZE;
James Smartb19a0612010-04-06 14:48:51 -040014696
14697 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14698 if (!mbox)
14699 return -ENOMEM;
14700 length = (sizeof(struct lpfc_mbx_mq_create_ext) -
14701 sizeof(struct lpfc_sli4_cfg_mhdr));
14702 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14703 LPFC_MBOX_OPCODE_MQ_CREATE_EXT,
14704 length, LPFC_SLI4_MBX_EMBED);
14705
14706 mq_create_ext = &mbox->u.mqe.un.mq_create_ext;
James Smart5a6f1332011-03-11 16:05:35 -050014707 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create_ext->header.cfg_shdr;
James Smart70f3c072010-12-15 17:57:33 -050014708 bf_set(lpfc_mbx_mq_create_ext_num_pages,
14709 &mq_create_ext->u.request, mq->page_count);
14710 bf_set(lpfc_mbx_mq_create_ext_async_evt_link,
14711 &mq_create_ext->u.request, 1);
14712 bf_set(lpfc_mbx_mq_create_ext_async_evt_fip,
James Smartb19a0612010-04-06 14:48:51 -040014713 &mq_create_ext->u.request, 1);
14714 bf_set(lpfc_mbx_mq_create_ext_async_evt_group5,
14715 &mq_create_ext->u.request, 1);
James Smart70f3c072010-12-15 17:57:33 -050014716 bf_set(lpfc_mbx_mq_create_ext_async_evt_fc,
14717 &mq_create_ext->u.request, 1);
14718 bf_set(lpfc_mbx_mq_create_ext_async_evt_sli,
14719 &mq_create_ext->u.request, 1);
James Smartb19a0612010-04-06 14:48:51 -040014720 bf_set(lpfc_mq_context_valid, &mq_create_ext->u.request.context, 1);
James Smart5a6f1332011-03-11 16:05:35 -050014721 bf_set(lpfc_mbox_hdr_version, &shdr->request,
14722 phba->sli4_hba.pc_sli4_params.mqv);
14723 if (phba->sli4_hba.pc_sli4_params.mqv == LPFC_Q_CREATE_VERSION_1)
14724 bf_set(lpfc_mbx_mq_create_ext_cq_id, &mq_create_ext->u.request,
14725 cq->queue_id);
14726 else
14727 bf_set(lpfc_mq_context_cq_id, &mq_create_ext->u.request.context,
14728 cq->queue_id);
James Smartb19a0612010-04-06 14:48:51 -040014729 switch (mq->entry_count) {
14730 default:
14731 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14732 "0362 Unsupported MQ count. (%d)\n",
14733 mq->entry_count);
James Smart4f4c1862012-06-12 13:54:02 -040014734 if (mq->entry_count < 16) {
14735 status = -EINVAL;
14736 goto out;
14737 }
James Smartb19a0612010-04-06 14:48:51 -040014738 /* otherwise default to smallest count (drop through) */
14739 case 16:
James Smart5a6f1332011-03-11 16:05:35 -050014740 bf_set(lpfc_mq_context_ring_size,
14741 &mq_create_ext->u.request.context,
14742 LPFC_MQ_RING_SIZE_16);
James Smartb19a0612010-04-06 14:48:51 -040014743 break;
14744 case 32:
James Smart5a6f1332011-03-11 16:05:35 -050014745 bf_set(lpfc_mq_context_ring_size,
14746 &mq_create_ext->u.request.context,
14747 LPFC_MQ_RING_SIZE_32);
James Smartb19a0612010-04-06 14:48:51 -040014748 break;
14749 case 64:
James Smart5a6f1332011-03-11 16:05:35 -050014750 bf_set(lpfc_mq_context_ring_size,
14751 &mq_create_ext->u.request.context,
14752 LPFC_MQ_RING_SIZE_64);
James Smartb19a0612010-04-06 14:48:51 -040014753 break;
14754 case 128:
James Smart5a6f1332011-03-11 16:05:35 -050014755 bf_set(lpfc_mq_context_ring_size,
14756 &mq_create_ext->u.request.context,
14757 LPFC_MQ_RING_SIZE_128);
James Smartb19a0612010-04-06 14:48:51 -040014758 break;
14759 }
14760 list_for_each_entry(dmabuf, &mq->page_list, list) {
James Smart49198b32010-04-06 15:04:33 -040014761 memset(dmabuf->virt, 0, hw_page_size);
James Smartb19a0612010-04-06 14:48:51 -040014762 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_lo =
14763 putPaddrLow(dmabuf->phys);
14764 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_hi =
James Smart04c68492009-05-22 14:52:52 -040014765 putPaddrHigh(dmabuf->phys);
14766 }
14767 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
James Smartb19a0612010-04-06 14:48:51 -040014768 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
14769 &mq_create_ext->u.response);
14770 if (rc != MBX_SUCCESS) {
14771 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
14772 "2795 MQ_CREATE_EXT failed with "
14773 "status x%x. Failback to MQ_CREATE.\n",
14774 rc);
14775 lpfc_mq_create_fb_init(phba, mq, mbox, cq);
14776 mq_create = &mbox->u.mqe.un.mq_create;
14777 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14778 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create->header.cfg_shdr;
14779 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
14780 &mq_create->u.response);
14781 }
14782
James Smart04c68492009-05-22 14:52:52 -040014783 /* The IOCTL status is embedded in the mailbox subheader. */
James Smart04c68492009-05-22 14:52:52 -040014784 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14785 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14786 if (shdr_status || shdr_add_status || rc) {
14787 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14788 "2502 MQ_CREATE mailbox failed with "
14789 "status x%x add_status x%x, mbx status x%x\n",
14790 shdr_status, shdr_add_status, rc);
14791 status = -ENXIO;
14792 goto out;
14793 }
James Smart04c68492009-05-22 14:52:52 -040014794 if (mq->queue_id == 0xFFFF) {
14795 status = -ENXIO;
14796 goto out;
14797 }
14798 mq->type = LPFC_MQ;
James Smart2a622bf2011-02-16 12:40:06 -050014799 mq->assoc_qid = cq->queue_id;
James Smart04c68492009-05-22 14:52:52 -040014800 mq->subtype = subtype;
14801 mq->host_index = 0;
14802 mq->hba_index = 0;
James Smart64eb4dc2017-05-15 15:20:49 -070014803 mq->entry_repost = LPFC_MQ_REPOST;
James Smart04c68492009-05-22 14:52:52 -040014804
14805 /* link the mq onto the parent cq child list */
14806 list_add_tail(&mq->list, &cq->child_list);
14807out:
James Smart8fa38512009-07-19 10:01:03 -040014808 mempool_free(mbox, phba->mbox_mem_pool);
James Smart04c68492009-05-22 14:52:52 -040014809 return status;
14810}
14811
14812/**
James Smart4f774512009-05-22 14:52:35 -040014813 * lpfc_wq_create - Create a Work Queue on the HBA
14814 * @phba: HBA structure that indicates port to create a queue on.
14815 * @wq: The queue structure to use to create the work queue.
14816 * @cq: The completion queue to bind this work queue to.
14817 * @subtype: The subtype of the work queue indicating its functionality.
14818 *
14819 * This function creates a work queue, as detailed in @wq, on a port, described
14820 * by @phba by sending a WQ_CREATE mailbox command to the HBA.
14821 *
14822 * The @phba struct is used to send mailbox command to HBA. The @wq struct
14823 * is used to get the entry count and entry size that are necessary to
14824 * determine the number of pages to allocate and use for this queue. The @cq
14825 * is used to indicate which completion queue to bind this work queue to. This
14826 * function will send the WQ_CREATE mailbox command to the HBA to setup the
14827 * work queue. This function is asynchronous and will wait for the mailbox
14828 * command to finish before continuing.
14829 *
14830 * On success this function will return a zero. If unable to allocate enough
James Smartd439d282010-09-29 11:18:45 -040014831 * memory this function will return -ENOMEM. If the queue create mailbox command
14832 * fails this function will return -ENXIO.
James Smart4f774512009-05-22 14:52:35 -040014833 **/
James Smarta2fc4aef2014-09-03 12:57:55 -040014834int
James Smart4f774512009-05-22 14:52:35 -040014835lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
14836 struct lpfc_queue *cq, uint32_t subtype)
14837{
14838 struct lpfc_mbx_wq_create *wq_create;
14839 struct lpfc_dmabuf *dmabuf;
14840 LPFC_MBOXQ_t *mbox;
14841 int rc, length, status = 0;
14842 uint32_t shdr_status, shdr_add_status;
14843 union lpfc_sli4_cfg_shdr *shdr;
James Smart49198b32010-04-06 15:04:33 -040014844 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
James Smart5a6f1332011-03-11 16:05:35 -050014845 struct dma_address *page;
James Smart962bc512013-01-03 15:44:00 -050014846 void __iomem *bar_memmap_p;
14847 uint32_t db_offset;
14848 uint16_t pci_barset;
James Smart49198b32010-04-06 15:04:33 -040014849
James Smart2e90f4b2011-12-13 13:22:37 -050014850 /* sanity check on queue memory */
14851 if (!wq || !cq)
14852 return -ENODEV;
James Smart49198b32010-04-06 15:04:33 -040014853 if (!phba->sli4_hba.pc_sli4_params.supported)
14854 hw_page_size = SLI4_PAGE_SIZE;
James Smart4f774512009-05-22 14:52:35 -040014855
14856 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14857 if (!mbox)
14858 return -ENOMEM;
14859 length = (sizeof(struct lpfc_mbx_wq_create) -
14860 sizeof(struct lpfc_sli4_cfg_mhdr));
14861 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14862 LPFC_MBOX_OPCODE_FCOE_WQ_CREATE,
14863 length, LPFC_SLI4_MBX_EMBED);
14864 wq_create = &mbox->u.mqe.un.wq_create;
James Smart5a6f1332011-03-11 16:05:35 -050014865 shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr;
James Smart4f774512009-05-22 14:52:35 -040014866 bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request,
14867 wq->page_count);
14868 bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request,
14869 cq->queue_id);
James Smart0c651872013-07-15 18:33:23 -040014870
14871 /* wqv is the earliest version supported, NOT the latest */
James Smart5a6f1332011-03-11 16:05:35 -050014872 bf_set(lpfc_mbox_hdr_version, &shdr->request,
14873 phba->sli4_hba.pc_sli4_params.wqv);
James Smart962bc512013-01-03 15:44:00 -050014874
James Smart0c651872013-07-15 18:33:23 -040014875 switch (phba->sli4_hba.pc_sli4_params.wqv) {
14876 case LPFC_Q_CREATE_VERSION_0:
14877 switch (wq->entry_size) {
14878 default:
14879 case 64:
14880 /* Nothing to do, version 0 ONLY supports 64 byte */
14881 page = wq_create->u.request.page;
14882 break;
14883 case 128:
14884 if (!(phba->sli4_hba.pc_sli4_params.wqsize &
14885 LPFC_WQ_SZ128_SUPPORT)) {
14886 status = -ERANGE;
14887 goto out;
14888 }
14889 /* If we get here the HBA MUST also support V1 and
14890 * we MUST use it
14891 */
14892 bf_set(lpfc_mbox_hdr_version, &shdr->request,
14893 LPFC_Q_CREATE_VERSION_1);
14894
14895 bf_set(lpfc_mbx_wq_create_wqe_count,
14896 &wq_create->u.request_1, wq->entry_count);
14897 bf_set(lpfc_mbx_wq_create_wqe_size,
14898 &wq_create->u.request_1,
14899 LPFC_WQ_WQE_SIZE_128);
14900 bf_set(lpfc_mbx_wq_create_page_size,
14901 &wq_create->u.request_1,
James Smart8ea73db2017-02-12 13:52:25 -080014902 LPFC_WQ_PAGE_SIZE_4096);
James Smart0c651872013-07-15 18:33:23 -040014903 page = wq_create->u.request_1.page;
14904 break;
14905 }
14906 break;
14907 case LPFC_Q_CREATE_VERSION_1:
James Smart5a6f1332011-03-11 16:05:35 -050014908 bf_set(lpfc_mbx_wq_create_wqe_count, &wq_create->u.request_1,
14909 wq->entry_count);
James Smart3f247de2017-04-21 16:04:56 -070014910 bf_set(lpfc_mbox_hdr_version, &shdr->request,
14911 LPFC_Q_CREATE_VERSION_1);
14912
James Smart5a6f1332011-03-11 16:05:35 -050014913 switch (wq->entry_size) {
14914 default:
14915 case 64:
14916 bf_set(lpfc_mbx_wq_create_wqe_size,
14917 &wq_create->u.request_1,
14918 LPFC_WQ_WQE_SIZE_64);
14919 break;
14920 case 128:
James Smart0c651872013-07-15 18:33:23 -040014921 if (!(phba->sli4_hba.pc_sli4_params.wqsize &
14922 LPFC_WQ_SZ128_SUPPORT)) {
14923 status = -ERANGE;
14924 goto out;
14925 }
James Smart5a6f1332011-03-11 16:05:35 -050014926 bf_set(lpfc_mbx_wq_create_wqe_size,
14927 &wq_create->u.request_1,
14928 LPFC_WQ_WQE_SIZE_128);
14929 break;
14930 }
James Smart8ea73db2017-02-12 13:52:25 -080014931 bf_set(lpfc_mbx_wq_create_page_size,
14932 &wq_create->u.request_1,
14933 LPFC_WQ_PAGE_SIZE_4096);
James Smart5a6f1332011-03-11 16:05:35 -050014934 page = wq_create->u.request_1.page;
James Smart0c651872013-07-15 18:33:23 -040014935 break;
14936 default:
14937 status = -ERANGE;
14938 goto out;
James Smart5a6f1332011-03-11 16:05:35 -050014939 }
James Smart0c651872013-07-15 18:33:23 -040014940
James Smart4f774512009-05-22 14:52:35 -040014941 list_for_each_entry(dmabuf, &wq->page_list, list) {
James Smart49198b32010-04-06 15:04:33 -040014942 memset(dmabuf->virt, 0, hw_page_size);
James Smart5a6f1332011-03-11 16:05:35 -050014943 page[dmabuf->buffer_tag].addr_lo = putPaddrLow(dmabuf->phys);
14944 page[dmabuf->buffer_tag].addr_hi = putPaddrHigh(dmabuf->phys);
James Smart4f774512009-05-22 14:52:35 -040014945 }
James Smart962bc512013-01-03 15:44:00 -050014946
14947 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
14948 bf_set(lpfc_mbx_wq_create_dua, &wq_create->u.request, 1);
14949
James Smart4f774512009-05-22 14:52:35 -040014950 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14951 /* The IOCTL status is embedded in the mailbox subheader. */
James Smart4f774512009-05-22 14:52:35 -040014952 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14953 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14954 if (shdr_status || shdr_add_status || rc) {
14955 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14956 "2503 WQ_CREATE mailbox failed with "
14957 "status x%x add_status x%x, mbx status x%x\n",
14958 shdr_status, shdr_add_status, rc);
14959 status = -ENXIO;
14960 goto out;
14961 }
14962 wq->queue_id = bf_get(lpfc_mbx_wq_create_q_id, &wq_create->u.response);
14963 if (wq->queue_id == 0xFFFF) {
14964 status = -ENXIO;
14965 goto out;
14966 }
James Smart962bc512013-01-03 15:44:00 -050014967 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
14968 wq->db_format = bf_get(lpfc_mbx_wq_create_db_format,
14969 &wq_create->u.response);
14970 if ((wq->db_format != LPFC_DB_LIST_FORMAT) &&
14971 (wq->db_format != LPFC_DB_RING_FORMAT)) {
14972 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14973 "3265 WQ[%d] doorbell format not "
14974 "supported: x%x\n", wq->queue_id,
14975 wq->db_format);
14976 status = -EINVAL;
14977 goto out;
14978 }
14979 pci_barset = bf_get(lpfc_mbx_wq_create_bar_set,
14980 &wq_create->u.response);
14981 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba, pci_barset);
14982 if (!bar_memmap_p) {
14983 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14984 "3263 WQ[%d] failed to memmap pci "
14985 "barset:x%x\n", wq->queue_id,
14986 pci_barset);
14987 status = -ENOMEM;
14988 goto out;
14989 }
14990 db_offset = wq_create->u.response.doorbell_offset;
14991 if ((db_offset != LPFC_ULP0_WQ_DOORBELL) &&
14992 (db_offset != LPFC_ULP1_WQ_DOORBELL)) {
14993 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14994 "3252 WQ[%d] doorbell offset not "
14995 "supported: x%x\n", wq->queue_id,
14996 db_offset);
14997 status = -EINVAL;
14998 goto out;
14999 }
15000 wq->db_regaddr = bar_memmap_p + db_offset;
15001 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
James Smarta22e7db2013-04-17 20:16:37 -040015002 "3264 WQ[%d]: barset:x%x, offset:x%x, "
15003 "format:x%x\n", wq->queue_id, pci_barset,
15004 db_offset, wq->db_format);
James Smart962bc512013-01-03 15:44:00 -050015005 } else {
15006 wq->db_format = LPFC_DB_LIST_FORMAT;
15007 wq->db_regaddr = phba->sli4_hba.WQDBregaddr;
15008 }
James Smart895427b2017-02-12 13:52:30 -080015009 wq->pring = kzalloc(sizeof(struct lpfc_sli_ring), GFP_KERNEL);
15010 if (wq->pring == NULL) {
15011 status = -ENOMEM;
15012 goto out;
15013 }
James Smart4f774512009-05-22 14:52:35 -040015014 wq->type = LPFC_WQ;
James Smart2a622bf2011-02-16 12:40:06 -050015015 wq->assoc_qid = cq->queue_id;
James Smart4f774512009-05-22 14:52:35 -040015016 wq->subtype = subtype;
15017 wq->host_index = 0;
15018 wq->hba_index = 0;
James Smartff78d8f2011-12-13 13:21:35 -050015019 wq->entry_repost = LPFC_RELEASE_NOTIFICATION_INTERVAL;
James Smart4f774512009-05-22 14:52:35 -040015020
15021 /* link the wq onto the parent cq child list */
15022 list_add_tail(&wq->list, &cq->child_list);
15023out:
James Smart8fa38512009-07-19 10:01:03 -040015024 mempool_free(mbox, phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040015025 return status;
15026}
15027
15028/**
15029 * lpfc_rq_create - Create a Receive Queue on the HBA
15030 * @phba: HBA structure that indicates port to create a queue on.
15031 * @hrq: The queue structure to use to create the header receive queue.
15032 * @drq: The queue structure to use to create the data receive queue.
15033 * @cq: The completion queue to bind this work queue to.
15034 *
15035 * This function creates a receive buffer queue pair , as detailed in @hrq and
15036 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
15037 * to the HBA.
15038 *
15039 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
15040 * struct is used to get the entry count that is necessary to determine the
15041 * number of pages to use for this queue. The @cq is used to indicate which
15042 * completion queue to bind received buffers that are posted to these queues to.
15043 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
15044 * receive queue pair. This function is asynchronous and will wait for the
15045 * mailbox command to finish before continuing.
15046 *
15047 * On success this function will return a zero. If unable to allocate enough
James Smartd439d282010-09-29 11:18:45 -040015048 * memory this function will return -ENOMEM. If the queue create mailbox command
15049 * fails this function will return -ENXIO.
James Smart4f774512009-05-22 14:52:35 -040015050 **/
James Smarta2fc4aef2014-09-03 12:57:55 -040015051int
James Smart4f774512009-05-22 14:52:35 -040015052lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
15053 struct lpfc_queue *drq, struct lpfc_queue *cq, uint32_t subtype)
15054{
15055 struct lpfc_mbx_rq_create *rq_create;
15056 struct lpfc_dmabuf *dmabuf;
15057 LPFC_MBOXQ_t *mbox;
15058 int rc, length, status = 0;
15059 uint32_t shdr_status, shdr_add_status;
15060 union lpfc_sli4_cfg_shdr *shdr;
James Smart49198b32010-04-06 15:04:33 -040015061 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
James Smart962bc512013-01-03 15:44:00 -050015062 void __iomem *bar_memmap_p;
15063 uint32_t db_offset;
15064 uint16_t pci_barset;
James Smart49198b32010-04-06 15:04:33 -040015065
James Smart2e90f4b2011-12-13 13:22:37 -050015066 /* sanity check on queue memory */
15067 if (!hrq || !drq || !cq)
15068 return -ENODEV;
James Smart49198b32010-04-06 15:04:33 -040015069 if (!phba->sli4_hba.pc_sli4_params.supported)
15070 hw_page_size = SLI4_PAGE_SIZE;
James Smart4f774512009-05-22 14:52:35 -040015071
15072 if (hrq->entry_count != drq->entry_count)
15073 return -EINVAL;
15074 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15075 if (!mbox)
15076 return -ENOMEM;
15077 length = (sizeof(struct lpfc_mbx_rq_create) -
15078 sizeof(struct lpfc_sli4_cfg_mhdr));
15079 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15080 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
15081 length, LPFC_SLI4_MBX_EMBED);
15082 rq_create = &mbox->u.mqe.un.rq_create;
James Smart5a6f1332011-03-11 16:05:35 -050015083 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
15084 bf_set(lpfc_mbox_hdr_version, &shdr->request,
15085 phba->sli4_hba.pc_sli4_params.rqv);
15086 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
15087 bf_set(lpfc_rq_context_rqe_count_1,
15088 &rq_create->u.request.context,
15089 hrq->entry_count);
15090 rq_create->u.request.context.buffer_size = LPFC_HDR_BUF_SIZE;
James Smartc31098c2011-04-16 11:03:33 -040015091 bf_set(lpfc_rq_context_rqe_size,
15092 &rq_create->u.request.context,
15093 LPFC_RQE_SIZE_8);
15094 bf_set(lpfc_rq_context_page_size,
15095 &rq_create->u.request.context,
James Smart8ea73db2017-02-12 13:52:25 -080015096 LPFC_RQ_PAGE_SIZE_4096);
James Smart5a6f1332011-03-11 16:05:35 -050015097 } else {
15098 switch (hrq->entry_count) {
15099 default:
15100 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15101 "2535 Unsupported RQ count. (%d)\n",
15102 hrq->entry_count);
James Smart4f4c1862012-06-12 13:54:02 -040015103 if (hrq->entry_count < 512) {
15104 status = -EINVAL;
15105 goto out;
15106 }
James Smart5a6f1332011-03-11 16:05:35 -050015107 /* otherwise default to smallest count (drop through) */
15108 case 512:
15109 bf_set(lpfc_rq_context_rqe_count,
15110 &rq_create->u.request.context,
15111 LPFC_RQ_RING_SIZE_512);
15112 break;
15113 case 1024:
15114 bf_set(lpfc_rq_context_rqe_count,
15115 &rq_create->u.request.context,
15116 LPFC_RQ_RING_SIZE_1024);
15117 break;
15118 case 2048:
15119 bf_set(lpfc_rq_context_rqe_count,
15120 &rq_create->u.request.context,
15121 LPFC_RQ_RING_SIZE_2048);
15122 break;
15123 case 4096:
15124 bf_set(lpfc_rq_context_rqe_count,
15125 &rq_create->u.request.context,
15126 LPFC_RQ_RING_SIZE_4096);
15127 break;
15128 }
15129 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
15130 LPFC_HDR_BUF_SIZE);
James Smart4f774512009-05-22 14:52:35 -040015131 }
15132 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
15133 cq->queue_id);
15134 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
15135 hrq->page_count);
James Smart4f774512009-05-22 14:52:35 -040015136 list_for_each_entry(dmabuf, &hrq->page_list, list) {
James Smart49198b32010-04-06 15:04:33 -040015137 memset(dmabuf->virt, 0, hw_page_size);
James Smart4f774512009-05-22 14:52:35 -040015138 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
15139 putPaddrLow(dmabuf->phys);
15140 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
15141 putPaddrHigh(dmabuf->phys);
15142 }
James Smart962bc512013-01-03 15:44:00 -050015143 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
15144 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
15145
James Smart4f774512009-05-22 14:52:35 -040015146 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15147 /* The IOCTL status is embedded in the mailbox subheader. */
James Smart4f774512009-05-22 14:52:35 -040015148 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15149 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15150 if (shdr_status || shdr_add_status || rc) {
15151 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15152 "2504 RQ_CREATE mailbox failed with "
15153 "status x%x add_status x%x, mbx status x%x\n",
15154 shdr_status, shdr_add_status, rc);
15155 status = -ENXIO;
15156 goto out;
15157 }
15158 hrq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
15159 if (hrq->queue_id == 0xFFFF) {
15160 status = -ENXIO;
15161 goto out;
15162 }
James Smart962bc512013-01-03 15:44:00 -050015163
15164 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
15165 hrq->db_format = bf_get(lpfc_mbx_rq_create_db_format,
15166 &rq_create->u.response);
15167 if ((hrq->db_format != LPFC_DB_LIST_FORMAT) &&
15168 (hrq->db_format != LPFC_DB_RING_FORMAT)) {
15169 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15170 "3262 RQ [%d] doorbell format not "
15171 "supported: x%x\n", hrq->queue_id,
15172 hrq->db_format);
15173 status = -EINVAL;
15174 goto out;
15175 }
15176
15177 pci_barset = bf_get(lpfc_mbx_rq_create_bar_set,
15178 &rq_create->u.response);
15179 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba, pci_barset);
15180 if (!bar_memmap_p) {
15181 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15182 "3269 RQ[%d] failed to memmap pci "
15183 "barset:x%x\n", hrq->queue_id,
15184 pci_barset);
15185 status = -ENOMEM;
15186 goto out;
15187 }
15188
15189 db_offset = rq_create->u.response.doorbell_offset;
15190 if ((db_offset != LPFC_ULP0_RQ_DOORBELL) &&
15191 (db_offset != LPFC_ULP1_RQ_DOORBELL)) {
15192 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15193 "3270 RQ[%d] doorbell offset not "
15194 "supported: x%x\n", hrq->queue_id,
15195 db_offset);
15196 status = -EINVAL;
15197 goto out;
15198 }
15199 hrq->db_regaddr = bar_memmap_p + db_offset;
15200 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
James Smarta22e7db2013-04-17 20:16:37 -040015201 "3266 RQ[qid:%d]: barset:x%x, offset:x%x, "
15202 "format:x%x\n", hrq->queue_id, pci_barset,
15203 db_offset, hrq->db_format);
James Smart962bc512013-01-03 15:44:00 -050015204 } else {
15205 hrq->db_format = LPFC_DB_RING_FORMAT;
15206 hrq->db_regaddr = phba->sli4_hba.RQDBregaddr;
15207 }
James Smart4f774512009-05-22 14:52:35 -040015208 hrq->type = LPFC_HRQ;
James Smart2a622bf2011-02-16 12:40:06 -050015209 hrq->assoc_qid = cq->queue_id;
James Smart4f774512009-05-22 14:52:35 -040015210 hrq->subtype = subtype;
15211 hrq->host_index = 0;
15212 hrq->hba_index = 0;
James Smart61f3d4b2017-05-15 15:20:41 -070015213 hrq->entry_repost = LPFC_RQ_REPOST;
James Smart4f774512009-05-22 14:52:35 -040015214
15215 /* now create the data queue */
15216 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15217 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
15218 length, LPFC_SLI4_MBX_EMBED);
James Smart5a6f1332011-03-11 16:05:35 -050015219 bf_set(lpfc_mbox_hdr_version, &shdr->request,
15220 phba->sli4_hba.pc_sli4_params.rqv);
15221 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
15222 bf_set(lpfc_rq_context_rqe_count_1,
James Smartc31098c2011-04-16 11:03:33 -040015223 &rq_create->u.request.context, hrq->entry_count);
James Smart3c603be2017-05-15 15:20:44 -070015224 if (subtype == LPFC_NVMET)
15225 rq_create->u.request.context.buffer_size =
15226 LPFC_NVMET_DATA_BUF_SIZE;
15227 else
15228 rq_create->u.request.context.buffer_size =
15229 LPFC_DATA_BUF_SIZE;
James Smartc31098c2011-04-16 11:03:33 -040015230 bf_set(lpfc_rq_context_rqe_size, &rq_create->u.request.context,
15231 LPFC_RQE_SIZE_8);
15232 bf_set(lpfc_rq_context_page_size, &rq_create->u.request.context,
15233 (PAGE_SIZE/SLI4_PAGE_SIZE));
James Smart5a6f1332011-03-11 16:05:35 -050015234 } else {
15235 switch (drq->entry_count) {
15236 default:
15237 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15238 "2536 Unsupported RQ count. (%d)\n",
15239 drq->entry_count);
James Smart4f4c1862012-06-12 13:54:02 -040015240 if (drq->entry_count < 512) {
15241 status = -EINVAL;
15242 goto out;
15243 }
James Smart5a6f1332011-03-11 16:05:35 -050015244 /* otherwise default to smallest count (drop through) */
15245 case 512:
15246 bf_set(lpfc_rq_context_rqe_count,
15247 &rq_create->u.request.context,
15248 LPFC_RQ_RING_SIZE_512);
15249 break;
15250 case 1024:
15251 bf_set(lpfc_rq_context_rqe_count,
15252 &rq_create->u.request.context,
15253 LPFC_RQ_RING_SIZE_1024);
15254 break;
15255 case 2048:
15256 bf_set(lpfc_rq_context_rqe_count,
15257 &rq_create->u.request.context,
15258 LPFC_RQ_RING_SIZE_2048);
15259 break;
15260 case 4096:
15261 bf_set(lpfc_rq_context_rqe_count,
15262 &rq_create->u.request.context,
15263 LPFC_RQ_RING_SIZE_4096);
15264 break;
15265 }
James Smart3c603be2017-05-15 15:20:44 -070015266 if (subtype == LPFC_NVMET)
15267 bf_set(lpfc_rq_context_buf_size,
15268 &rq_create->u.request.context,
15269 LPFC_NVMET_DATA_BUF_SIZE);
15270 else
15271 bf_set(lpfc_rq_context_buf_size,
15272 &rq_create->u.request.context,
15273 LPFC_DATA_BUF_SIZE);
James Smart4f774512009-05-22 14:52:35 -040015274 }
15275 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
15276 cq->queue_id);
15277 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
15278 drq->page_count);
James Smart4f774512009-05-22 14:52:35 -040015279 list_for_each_entry(dmabuf, &drq->page_list, list) {
15280 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
15281 putPaddrLow(dmabuf->phys);
15282 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
15283 putPaddrHigh(dmabuf->phys);
15284 }
James Smart962bc512013-01-03 15:44:00 -050015285 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
15286 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
James Smart4f774512009-05-22 14:52:35 -040015287 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15288 /* The IOCTL status is embedded in the mailbox subheader. */
15289 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
15290 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15291 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15292 if (shdr_status || shdr_add_status || rc) {
15293 status = -ENXIO;
15294 goto out;
15295 }
15296 drq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
15297 if (drq->queue_id == 0xFFFF) {
15298 status = -ENXIO;
15299 goto out;
15300 }
15301 drq->type = LPFC_DRQ;
James Smart2a622bf2011-02-16 12:40:06 -050015302 drq->assoc_qid = cq->queue_id;
James Smart4f774512009-05-22 14:52:35 -040015303 drq->subtype = subtype;
15304 drq->host_index = 0;
15305 drq->hba_index = 0;
James Smart61f3d4b2017-05-15 15:20:41 -070015306 drq->entry_repost = LPFC_RQ_REPOST;
James Smart4f774512009-05-22 14:52:35 -040015307
15308 /* link the header and data RQs onto the parent cq child list */
15309 list_add_tail(&hrq->list, &cq->child_list);
15310 list_add_tail(&drq->list, &cq->child_list);
15311
15312out:
James Smart8fa38512009-07-19 10:01:03 -040015313 mempool_free(mbox, phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040015314 return status;
15315}
15316
15317/**
James Smart2d7dbc42017-02-12 13:52:35 -080015318 * lpfc_mrq_create - Create MRQ Receive Queues on the HBA
15319 * @phba: HBA structure that indicates port to create a queue on.
15320 * @hrqp: The queue structure array to use to create the header receive queues.
15321 * @drqp: The queue structure array to use to create the data receive queues.
15322 * @cqp: The completion queue array to bind these receive queues to.
15323 *
15324 * This function creates a receive buffer queue pair , as detailed in @hrq and
15325 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
15326 * to the HBA.
15327 *
15328 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
15329 * struct is used to get the entry count that is necessary to determine the
15330 * number of pages to use for this queue. The @cq is used to indicate which
15331 * completion queue to bind received buffers that are posted to these queues to.
15332 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
15333 * receive queue pair. This function is asynchronous and will wait for the
15334 * mailbox command to finish before continuing.
15335 *
15336 * On success this function will return a zero. If unable to allocate enough
15337 * memory this function will return -ENOMEM. If the queue create mailbox command
15338 * fails this function will return -ENXIO.
15339 **/
15340int
15341lpfc_mrq_create(struct lpfc_hba *phba, struct lpfc_queue **hrqp,
15342 struct lpfc_queue **drqp, struct lpfc_queue **cqp,
15343 uint32_t subtype)
15344{
15345 struct lpfc_queue *hrq, *drq, *cq;
15346 struct lpfc_mbx_rq_create_v2 *rq_create;
15347 struct lpfc_dmabuf *dmabuf;
15348 LPFC_MBOXQ_t *mbox;
15349 int rc, length, alloclen, status = 0;
15350 int cnt, idx, numrq, page_idx = 0;
15351 uint32_t shdr_status, shdr_add_status;
15352 union lpfc_sli4_cfg_shdr *shdr;
15353 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
15354
15355 numrq = phba->cfg_nvmet_mrq;
15356 /* sanity check on array memory */
15357 if (!hrqp || !drqp || !cqp || !numrq)
15358 return -ENODEV;
15359 if (!phba->sli4_hba.pc_sli4_params.supported)
15360 hw_page_size = SLI4_PAGE_SIZE;
15361
15362 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15363 if (!mbox)
15364 return -ENOMEM;
15365
15366 length = sizeof(struct lpfc_mbx_rq_create_v2);
15367 length += ((2 * numrq * hrqp[0]->page_count) *
15368 sizeof(struct dma_address));
15369
15370 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15371 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE, length,
15372 LPFC_SLI4_MBX_NEMBED);
15373 if (alloclen < length) {
15374 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15375 "3099 Allocated DMA memory size (%d) is "
15376 "less than the requested DMA memory size "
15377 "(%d)\n", alloclen, length);
15378 status = -ENOMEM;
15379 goto out;
15380 }
15381
15382
15383
15384 rq_create = mbox->sge_array->addr[0];
15385 shdr = (union lpfc_sli4_cfg_shdr *)&rq_create->cfg_shdr;
15386
15387 bf_set(lpfc_mbox_hdr_version, &shdr->request, LPFC_Q_CREATE_VERSION_2);
15388 cnt = 0;
15389
15390 for (idx = 0; idx < numrq; idx++) {
15391 hrq = hrqp[idx];
15392 drq = drqp[idx];
15393 cq = cqp[idx];
15394
James Smart2d7dbc42017-02-12 13:52:35 -080015395 /* sanity check on queue memory */
15396 if (!hrq || !drq || !cq) {
15397 status = -ENODEV;
15398 goto out;
15399 }
15400
James Smart7aabe842017-03-04 09:30:22 -080015401 if (hrq->entry_count != drq->entry_count) {
15402 status = -EINVAL;
15403 goto out;
15404 }
15405
James Smart2d7dbc42017-02-12 13:52:35 -080015406 if (idx == 0) {
15407 bf_set(lpfc_mbx_rq_create_num_pages,
15408 &rq_create->u.request,
15409 hrq->page_count);
15410 bf_set(lpfc_mbx_rq_create_rq_cnt,
15411 &rq_create->u.request, (numrq * 2));
15412 bf_set(lpfc_mbx_rq_create_dnb, &rq_create->u.request,
15413 1);
15414 bf_set(lpfc_rq_context_base_cq,
15415 &rq_create->u.request.context,
15416 cq->queue_id);
15417 bf_set(lpfc_rq_context_data_size,
15418 &rq_create->u.request.context,
James Smart3c603be2017-05-15 15:20:44 -070015419 LPFC_NVMET_DATA_BUF_SIZE);
James Smart2d7dbc42017-02-12 13:52:35 -080015420 bf_set(lpfc_rq_context_hdr_size,
15421 &rq_create->u.request.context,
15422 LPFC_HDR_BUF_SIZE);
15423 bf_set(lpfc_rq_context_rqe_count_1,
15424 &rq_create->u.request.context,
15425 hrq->entry_count);
15426 bf_set(lpfc_rq_context_rqe_size,
15427 &rq_create->u.request.context,
15428 LPFC_RQE_SIZE_8);
15429 bf_set(lpfc_rq_context_page_size,
15430 &rq_create->u.request.context,
15431 (PAGE_SIZE/SLI4_PAGE_SIZE));
15432 }
15433 rc = 0;
15434 list_for_each_entry(dmabuf, &hrq->page_list, list) {
15435 memset(dmabuf->virt, 0, hw_page_size);
15436 cnt = page_idx + dmabuf->buffer_tag;
15437 rq_create->u.request.page[cnt].addr_lo =
15438 putPaddrLow(dmabuf->phys);
15439 rq_create->u.request.page[cnt].addr_hi =
15440 putPaddrHigh(dmabuf->phys);
15441 rc++;
15442 }
15443 page_idx += rc;
15444
15445 rc = 0;
15446 list_for_each_entry(dmabuf, &drq->page_list, list) {
15447 memset(dmabuf->virt, 0, hw_page_size);
15448 cnt = page_idx + dmabuf->buffer_tag;
15449 rq_create->u.request.page[cnt].addr_lo =
15450 putPaddrLow(dmabuf->phys);
15451 rq_create->u.request.page[cnt].addr_hi =
15452 putPaddrHigh(dmabuf->phys);
15453 rc++;
15454 }
15455 page_idx += rc;
15456
15457 hrq->db_format = LPFC_DB_RING_FORMAT;
15458 hrq->db_regaddr = phba->sli4_hba.RQDBregaddr;
15459 hrq->type = LPFC_HRQ;
15460 hrq->assoc_qid = cq->queue_id;
15461 hrq->subtype = subtype;
15462 hrq->host_index = 0;
15463 hrq->hba_index = 0;
James Smart61f3d4b2017-05-15 15:20:41 -070015464 hrq->entry_repost = LPFC_RQ_REPOST;
James Smart2d7dbc42017-02-12 13:52:35 -080015465
15466 drq->db_format = LPFC_DB_RING_FORMAT;
15467 drq->db_regaddr = phba->sli4_hba.RQDBregaddr;
15468 drq->type = LPFC_DRQ;
15469 drq->assoc_qid = cq->queue_id;
15470 drq->subtype = subtype;
15471 drq->host_index = 0;
15472 drq->hba_index = 0;
James Smart61f3d4b2017-05-15 15:20:41 -070015473 drq->entry_repost = LPFC_RQ_REPOST;
James Smart2d7dbc42017-02-12 13:52:35 -080015474
15475 list_add_tail(&hrq->list, &cq->child_list);
15476 list_add_tail(&drq->list, &cq->child_list);
15477 }
15478
15479 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15480 /* The IOCTL status is embedded in the mailbox subheader. */
15481 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15482 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15483 if (shdr_status || shdr_add_status || rc) {
15484 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15485 "3120 RQ_CREATE mailbox failed with "
15486 "status x%x add_status x%x, mbx status x%x\n",
15487 shdr_status, shdr_add_status, rc);
15488 status = -ENXIO;
15489 goto out;
15490 }
15491 rc = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
15492 if (rc == 0xFFFF) {
15493 status = -ENXIO;
15494 goto out;
15495 }
15496
15497 /* Initialize all RQs with associated queue id */
15498 for (idx = 0; idx < numrq; idx++) {
15499 hrq = hrqp[idx];
15500 hrq->queue_id = rc + (2 * idx);
15501 drq = drqp[idx];
15502 drq->queue_id = rc + (2 * idx) + 1;
15503 }
15504
15505out:
15506 lpfc_sli4_mbox_cmd_free(phba, mbox);
15507 return status;
15508}
15509
15510/**
James Smart4f774512009-05-22 14:52:35 -040015511 * lpfc_eq_destroy - Destroy an event Queue on the HBA
15512 * @eq: The queue structure associated with the queue to destroy.
15513 *
15514 * This function destroys a queue, as detailed in @eq by sending an mailbox
15515 * command, specific to the type of queue, to the HBA.
15516 *
15517 * The @eq struct is used to get the queue ID of the queue to destroy.
15518 *
15519 * On success this function will return a zero. If the queue destroy mailbox
James Smartd439d282010-09-29 11:18:45 -040015520 * command fails this function will return -ENXIO.
James Smart4f774512009-05-22 14:52:35 -040015521 **/
James Smarta2fc4aef2014-09-03 12:57:55 -040015522int
James Smart4f774512009-05-22 14:52:35 -040015523lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq)
15524{
15525 LPFC_MBOXQ_t *mbox;
15526 int rc, length, status = 0;
15527 uint32_t shdr_status, shdr_add_status;
15528 union lpfc_sli4_cfg_shdr *shdr;
15529
James Smart2e90f4b2011-12-13 13:22:37 -050015530 /* sanity check on queue memory */
James Smart4f774512009-05-22 14:52:35 -040015531 if (!eq)
15532 return -ENODEV;
15533 mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL);
15534 if (!mbox)
15535 return -ENOMEM;
15536 length = (sizeof(struct lpfc_mbx_eq_destroy) -
15537 sizeof(struct lpfc_sli4_cfg_mhdr));
15538 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
15539 LPFC_MBOX_OPCODE_EQ_DESTROY,
15540 length, LPFC_SLI4_MBX_EMBED);
15541 bf_set(lpfc_mbx_eq_destroy_q_id, &mbox->u.mqe.un.eq_destroy.u.request,
15542 eq->queue_id);
15543 mbox->vport = eq->phba->pport;
15544 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
15545
15546 rc = lpfc_sli_issue_mbox(eq->phba, mbox, MBX_POLL);
15547 /* The IOCTL status is embedded in the mailbox subheader. */
15548 shdr = (union lpfc_sli4_cfg_shdr *)
15549 &mbox->u.mqe.un.eq_destroy.header.cfg_shdr;
15550 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15551 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15552 if (shdr_status || shdr_add_status || rc) {
15553 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15554 "2505 EQ_DESTROY mailbox failed with "
15555 "status x%x add_status x%x, mbx status x%x\n",
15556 shdr_status, shdr_add_status, rc);
15557 status = -ENXIO;
15558 }
15559
15560 /* Remove eq from any list */
15561 list_del_init(&eq->list);
James Smart8fa38512009-07-19 10:01:03 -040015562 mempool_free(mbox, eq->phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040015563 return status;
15564}
15565
15566/**
15567 * lpfc_cq_destroy - Destroy a Completion Queue on the HBA
15568 * @cq: The queue structure associated with the queue to destroy.
15569 *
15570 * This function destroys a queue, as detailed in @cq by sending an mailbox
15571 * command, specific to the type of queue, to the HBA.
15572 *
15573 * The @cq struct is used to get the queue ID of the queue to destroy.
15574 *
15575 * On success this function will return a zero. If the queue destroy mailbox
James Smartd439d282010-09-29 11:18:45 -040015576 * command fails this function will return -ENXIO.
James Smart4f774512009-05-22 14:52:35 -040015577 **/
James Smarta2fc4aef2014-09-03 12:57:55 -040015578int
James Smart4f774512009-05-22 14:52:35 -040015579lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq)
15580{
15581 LPFC_MBOXQ_t *mbox;
15582 int rc, length, status = 0;
15583 uint32_t shdr_status, shdr_add_status;
15584 union lpfc_sli4_cfg_shdr *shdr;
15585
James Smart2e90f4b2011-12-13 13:22:37 -050015586 /* sanity check on queue memory */
James Smart4f774512009-05-22 14:52:35 -040015587 if (!cq)
15588 return -ENODEV;
15589 mbox = mempool_alloc(cq->phba->mbox_mem_pool, GFP_KERNEL);
15590 if (!mbox)
15591 return -ENOMEM;
15592 length = (sizeof(struct lpfc_mbx_cq_destroy) -
15593 sizeof(struct lpfc_sli4_cfg_mhdr));
15594 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
15595 LPFC_MBOX_OPCODE_CQ_DESTROY,
15596 length, LPFC_SLI4_MBX_EMBED);
15597 bf_set(lpfc_mbx_cq_destroy_q_id, &mbox->u.mqe.un.cq_destroy.u.request,
15598 cq->queue_id);
15599 mbox->vport = cq->phba->pport;
15600 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
15601 rc = lpfc_sli_issue_mbox(cq->phba, mbox, MBX_POLL);
15602 /* The IOCTL status is embedded in the mailbox subheader. */
15603 shdr = (union lpfc_sli4_cfg_shdr *)
15604 &mbox->u.mqe.un.wq_create.header.cfg_shdr;
15605 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15606 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15607 if (shdr_status || shdr_add_status || rc) {
15608 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15609 "2506 CQ_DESTROY mailbox failed with "
15610 "status x%x add_status x%x, mbx status x%x\n",
15611 shdr_status, shdr_add_status, rc);
15612 status = -ENXIO;
15613 }
15614 /* Remove cq from any list */
15615 list_del_init(&cq->list);
James Smart8fa38512009-07-19 10:01:03 -040015616 mempool_free(mbox, cq->phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040015617 return status;
15618}
15619
15620/**
James Smart04c68492009-05-22 14:52:52 -040015621 * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
15622 * @qm: The queue structure associated with the queue to destroy.
15623 *
15624 * This function destroys a queue, as detailed in @mq by sending an mailbox
15625 * command, specific to the type of queue, to the HBA.
15626 *
15627 * The @mq struct is used to get the queue ID of the queue to destroy.
15628 *
15629 * On success this function will return a zero. If the queue destroy mailbox
James Smartd439d282010-09-29 11:18:45 -040015630 * command fails this function will return -ENXIO.
James Smart04c68492009-05-22 14:52:52 -040015631 **/
James Smarta2fc4aef2014-09-03 12:57:55 -040015632int
James Smart04c68492009-05-22 14:52:52 -040015633lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq)
15634{
15635 LPFC_MBOXQ_t *mbox;
15636 int rc, length, status = 0;
15637 uint32_t shdr_status, shdr_add_status;
15638 union lpfc_sli4_cfg_shdr *shdr;
15639
James Smart2e90f4b2011-12-13 13:22:37 -050015640 /* sanity check on queue memory */
James Smart04c68492009-05-22 14:52:52 -040015641 if (!mq)
15642 return -ENODEV;
15643 mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL);
15644 if (!mbox)
15645 return -ENOMEM;
15646 length = (sizeof(struct lpfc_mbx_mq_destroy) -
15647 sizeof(struct lpfc_sli4_cfg_mhdr));
15648 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
15649 LPFC_MBOX_OPCODE_MQ_DESTROY,
15650 length, LPFC_SLI4_MBX_EMBED);
15651 bf_set(lpfc_mbx_mq_destroy_q_id, &mbox->u.mqe.un.mq_destroy.u.request,
15652 mq->queue_id);
15653 mbox->vport = mq->phba->pport;
15654 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
15655 rc = lpfc_sli_issue_mbox(mq->phba, mbox, MBX_POLL);
15656 /* The IOCTL status is embedded in the mailbox subheader. */
15657 shdr = (union lpfc_sli4_cfg_shdr *)
15658 &mbox->u.mqe.un.mq_destroy.header.cfg_shdr;
15659 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15660 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15661 if (shdr_status || shdr_add_status || rc) {
15662 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15663 "2507 MQ_DESTROY mailbox failed with "
15664 "status x%x add_status x%x, mbx status x%x\n",
15665 shdr_status, shdr_add_status, rc);
15666 status = -ENXIO;
15667 }
15668 /* Remove mq from any list */
15669 list_del_init(&mq->list);
James Smart8fa38512009-07-19 10:01:03 -040015670 mempool_free(mbox, mq->phba->mbox_mem_pool);
James Smart04c68492009-05-22 14:52:52 -040015671 return status;
15672}
15673
15674/**
James Smart4f774512009-05-22 14:52:35 -040015675 * lpfc_wq_destroy - Destroy a Work Queue on the HBA
15676 * @wq: The queue structure associated with the queue to destroy.
15677 *
15678 * This function destroys a queue, as detailed in @wq by sending an mailbox
15679 * command, specific to the type of queue, to the HBA.
15680 *
15681 * The @wq struct is used to get the queue ID of the queue to destroy.
15682 *
15683 * On success this function will return a zero. If the queue destroy mailbox
James Smartd439d282010-09-29 11:18:45 -040015684 * command fails this function will return -ENXIO.
James Smart4f774512009-05-22 14:52:35 -040015685 **/
James Smarta2fc4aef2014-09-03 12:57:55 -040015686int
James Smart4f774512009-05-22 14:52:35 -040015687lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq)
15688{
15689 LPFC_MBOXQ_t *mbox;
15690 int rc, length, status = 0;
15691 uint32_t shdr_status, shdr_add_status;
15692 union lpfc_sli4_cfg_shdr *shdr;
15693
James Smart2e90f4b2011-12-13 13:22:37 -050015694 /* sanity check on queue memory */
James Smart4f774512009-05-22 14:52:35 -040015695 if (!wq)
15696 return -ENODEV;
15697 mbox = mempool_alloc(wq->phba->mbox_mem_pool, GFP_KERNEL);
15698 if (!mbox)
15699 return -ENOMEM;
15700 length = (sizeof(struct lpfc_mbx_wq_destroy) -
15701 sizeof(struct lpfc_sli4_cfg_mhdr));
15702 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15703 LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY,
15704 length, LPFC_SLI4_MBX_EMBED);
15705 bf_set(lpfc_mbx_wq_destroy_q_id, &mbox->u.mqe.un.wq_destroy.u.request,
15706 wq->queue_id);
15707 mbox->vport = wq->phba->pport;
15708 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
15709 rc = lpfc_sli_issue_mbox(wq->phba, mbox, MBX_POLL);
15710 shdr = (union lpfc_sli4_cfg_shdr *)
15711 &mbox->u.mqe.un.wq_destroy.header.cfg_shdr;
15712 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15713 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15714 if (shdr_status || shdr_add_status || rc) {
15715 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15716 "2508 WQ_DESTROY mailbox failed with "
15717 "status x%x add_status x%x, mbx status x%x\n",
15718 shdr_status, shdr_add_status, rc);
15719 status = -ENXIO;
15720 }
15721 /* Remove wq from any list */
15722 list_del_init(&wq->list);
James Smartd1f525a2017-04-21 16:04:55 -070015723 kfree(wq->pring);
15724 wq->pring = NULL;
James Smart8fa38512009-07-19 10:01:03 -040015725 mempool_free(mbox, wq->phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040015726 return status;
15727}
15728
15729/**
15730 * lpfc_rq_destroy - Destroy a Receive Queue on the HBA
15731 * @rq: The queue structure associated with the queue to destroy.
15732 *
15733 * This function destroys a queue, as detailed in @rq by sending an mailbox
15734 * command, specific to the type of queue, to the HBA.
15735 *
15736 * The @rq struct is used to get the queue ID of the queue to destroy.
15737 *
15738 * On success this function will return a zero. If the queue destroy mailbox
James Smartd439d282010-09-29 11:18:45 -040015739 * command fails this function will return -ENXIO.
James Smart4f774512009-05-22 14:52:35 -040015740 **/
James Smarta2fc4aef2014-09-03 12:57:55 -040015741int
James Smart4f774512009-05-22 14:52:35 -040015742lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq,
15743 struct lpfc_queue *drq)
15744{
15745 LPFC_MBOXQ_t *mbox;
15746 int rc, length, status = 0;
15747 uint32_t shdr_status, shdr_add_status;
15748 union lpfc_sli4_cfg_shdr *shdr;
15749
James Smart2e90f4b2011-12-13 13:22:37 -050015750 /* sanity check on queue memory */
James Smart4f774512009-05-22 14:52:35 -040015751 if (!hrq || !drq)
15752 return -ENODEV;
15753 mbox = mempool_alloc(hrq->phba->mbox_mem_pool, GFP_KERNEL);
15754 if (!mbox)
15755 return -ENOMEM;
15756 length = (sizeof(struct lpfc_mbx_rq_destroy) -
James Smartfedd3b72011-02-16 12:39:24 -050015757 sizeof(struct lpfc_sli4_cfg_mhdr));
James Smart4f774512009-05-22 14:52:35 -040015758 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15759 LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY,
15760 length, LPFC_SLI4_MBX_EMBED);
15761 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
15762 hrq->queue_id);
15763 mbox->vport = hrq->phba->pport;
15764 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
15765 rc = lpfc_sli_issue_mbox(hrq->phba, mbox, MBX_POLL);
15766 /* The IOCTL status is embedded in the mailbox subheader. */
15767 shdr = (union lpfc_sli4_cfg_shdr *)
15768 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
15769 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15770 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15771 if (shdr_status || shdr_add_status || rc) {
15772 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15773 "2509 RQ_DESTROY mailbox failed with "
15774 "status x%x add_status x%x, mbx status x%x\n",
15775 shdr_status, shdr_add_status, rc);
15776 if (rc != MBX_TIMEOUT)
15777 mempool_free(mbox, hrq->phba->mbox_mem_pool);
15778 return -ENXIO;
15779 }
15780 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
15781 drq->queue_id);
15782 rc = lpfc_sli_issue_mbox(drq->phba, mbox, MBX_POLL);
15783 shdr = (union lpfc_sli4_cfg_shdr *)
15784 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
15785 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15786 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15787 if (shdr_status || shdr_add_status || rc) {
15788 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15789 "2510 RQ_DESTROY mailbox failed with "
15790 "status x%x add_status x%x, mbx status x%x\n",
15791 shdr_status, shdr_add_status, rc);
15792 status = -ENXIO;
15793 }
15794 list_del_init(&hrq->list);
15795 list_del_init(&drq->list);
James Smart8fa38512009-07-19 10:01:03 -040015796 mempool_free(mbox, hrq->phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040015797 return status;
15798}
15799
15800/**
15801 * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
15802 * @phba: The virtual port for which this call being executed.
15803 * @pdma_phys_addr0: Physical address of the 1st SGL page.
15804 * @pdma_phys_addr1: Physical address of the 2nd SGL page.
15805 * @xritag: the xritag that ties this io to the SGL pages.
15806 *
15807 * This routine will post the sgl pages for the IO that has the xritag
15808 * that is in the iocbq structure. The xritag is assigned during iocbq
15809 * creation and persists for as long as the driver is loaded.
15810 * if the caller has fewer than 256 scatter gather segments to map then
15811 * pdma_phys_addr1 should be 0.
15812 * If the caller needs to map more than 256 scatter gather segment then
15813 * pdma_phys_addr1 should be a valid physical address.
15814 * physical address for SGLs must be 64 byte aligned.
15815 * If you are going to map 2 SGL's then the first one must have 256 entries
15816 * the second sgl can have between 1 and 256 entries.
15817 *
15818 * Return codes:
15819 * 0 - Success
15820 * -ENXIO, -ENOMEM - Failure
15821 **/
15822int
15823lpfc_sli4_post_sgl(struct lpfc_hba *phba,
15824 dma_addr_t pdma_phys_addr0,
15825 dma_addr_t pdma_phys_addr1,
15826 uint16_t xritag)
15827{
15828 struct lpfc_mbx_post_sgl_pages *post_sgl_pages;
15829 LPFC_MBOXQ_t *mbox;
15830 int rc;
15831 uint32_t shdr_status, shdr_add_status;
James Smart6d368e52011-05-24 11:44:12 -040015832 uint32_t mbox_tmo;
James Smart4f774512009-05-22 14:52:35 -040015833 union lpfc_sli4_cfg_shdr *shdr;
15834
15835 if (xritag == NO_XRI) {
15836 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15837 "0364 Invalid param:\n");
15838 return -EINVAL;
15839 }
15840
15841 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15842 if (!mbox)
15843 return -ENOMEM;
15844
15845 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15846 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
15847 sizeof(struct lpfc_mbx_post_sgl_pages) -
James Smartfedd3b72011-02-16 12:39:24 -050015848 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
James Smart4f774512009-05-22 14:52:35 -040015849
15850 post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *)
15851 &mbox->u.mqe.un.post_sgl_pages;
15852 bf_set(lpfc_post_sgl_pages_xri, post_sgl_pages, xritag);
15853 bf_set(lpfc_post_sgl_pages_xricnt, post_sgl_pages, 1);
15854
15855 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_lo =
15856 cpu_to_le32(putPaddrLow(pdma_phys_addr0));
15857 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_hi =
15858 cpu_to_le32(putPaddrHigh(pdma_phys_addr0));
15859
15860 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_lo =
15861 cpu_to_le32(putPaddrLow(pdma_phys_addr1));
15862 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_hi =
15863 cpu_to_le32(putPaddrHigh(pdma_phys_addr1));
15864 if (!phba->sli4_hba.intr_enable)
15865 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
James Smart6d368e52011-05-24 11:44:12 -040015866 else {
James Smarta183a152011-10-10 21:32:43 -040015867 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
James Smart6d368e52011-05-24 11:44:12 -040015868 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
15869 }
James Smart4f774512009-05-22 14:52:35 -040015870 /* The IOCTL status is embedded in the mailbox subheader. */
15871 shdr = (union lpfc_sli4_cfg_shdr *) &post_sgl_pages->header.cfg_shdr;
15872 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15873 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15874 if (rc != MBX_TIMEOUT)
15875 mempool_free(mbox, phba->mbox_mem_pool);
15876 if (shdr_status || shdr_add_status || rc) {
15877 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15878 "2511 POST_SGL mailbox failed with "
15879 "status x%x add_status x%x, mbx status x%x\n",
15880 shdr_status, shdr_add_status, rc);
James Smart4f774512009-05-22 14:52:35 -040015881 }
15882 return 0;
15883}
James Smart4f774512009-05-22 14:52:35 -040015884
15885/**
James Smart88a2cfb2011-07-22 18:36:33 -040015886 * lpfc_sli4_alloc_xri - Get an available rpi in the device's range
James Smart6d368e52011-05-24 11:44:12 -040015887 * @phba: pointer to lpfc hba data structure.
15888 *
15889 * This routine is invoked to post rpi header templates to the
James Smart88a2cfb2011-07-22 18:36:33 -040015890 * HBA consistent with the SLI-4 interface spec. This routine
15891 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
15892 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
James Smart6d368e52011-05-24 11:44:12 -040015893 *
James Smart88a2cfb2011-07-22 18:36:33 -040015894 * Returns
15895 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
15896 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
15897 **/
Rashika Kheria5d8b8162014-09-03 12:55:04 -040015898static uint16_t
James Smart6d368e52011-05-24 11:44:12 -040015899lpfc_sli4_alloc_xri(struct lpfc_hba *phba)
15900{
15901 unsigned long xri;
15902
15903 /*
15904 * Fetch the next logical xri. Because this index is logical,
15905 * the driver starts at 0 each time.
15906 */
15907 spin_lock_irq(&phba->hbalock);
15908 xri = find_next_zero_bit(phba->sli4_hba.xri_bmask,
15909 phba->sli4_hba.max_cfg_param.max_xri, 0);
15910 if (xri >= phba->sli4_hba.max_cfg_param.max_xri) {
15911 spin_unlock_irq(&phba->hbalock);
15912 return NO_XRI;
15913 } else {
15914 set_bit(xri, phba->sli4_hba.xri_bmask);
15915 phba->sli4_hba.max_cfg_param.xri_used++;
James Smart6d368e52011-05-24 11:44:12 -040015916 }
James Smart6d368e52011-05-24 11:44:12 -040015917 spin_unlock_irq(&phba->hbalock);
15918 return xri;
15919}
15920
15921/**
15922 * lpfc_sli4_free_xri - Release an xri for reuse.
15923 * @phba: pointer to lpfc hba data structure.
15924 *
15925 * This routine is invoked to release an xri to the pool of
15926 * available rpis maintained by the driver.
15927 **/
Rashika Kheria5d8b8162014-09-03 12:55:04 -040015928static void
James Smart6d368e52011-05-24 11:44:12 -040015929__lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
15930{
15931 if (test_and_clear_bit(xri, phba->sli4_hba.xri_bmask)) {
James Smart6d368e52011-05-24 11:44:12 -040015932 phba->sli4_hba.max_cfg_param.xri_used--;
15933 }
15934}
15935
15936/**
15937 * lpfc_sli4_free_xri - Release an xri for reuse.
15938 * @phba: pointer to lpfc hba data structure.
15939 *
15940 * This routine is invoked to release an xri to the pool of
15941 * available rpis maintained by the driver.
15942 **/
15943void
15944lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
15945{
15946 spin_lock_irq(&phba->hbalock);
15947 __lpfc_sli4_free_xri(phba, xri);
15948 spin_unlock_irq(&phba->hbalock);
15949}
15950
15951/**
James Smart4f774512009-05-22 14:52:35 -040015952 * lpfc_sli4_next_xritag - Get an xritag for the io
15953 * @phba: Pointer to HBA context object.
15954 *
15955 * This function gets an xritag for the iocb. If there is no unused xritag
15956 * it will return 0xffff.
15957 * The function returns the allocated xritag if successful, else returns zero.
15958 * Zero is not a valid xritag.
15959 * The caller is not required to hold any lock.
15960 **/
15961uint16_t
15962lpfc_sli4_next_xritag(struct lpfc_hba *phba)
15963{
James Smart6d368e52011-05-24 11:44:12 -040015964 uint16_t xri_index;
James Smart4f774512009-05-22 14:52:35 -040015965
James Smart6d368e52011-05-24 11:44:12 -040015966 xri_index = lpfc_sli4_alloc_xri(phba);
James Smart81378052012-05-09 21:17:37 -040015967 if (xri_index == NO_XRI)
15968 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
15969 "2004 Failed to allocate XRI.last XRITAG is %d"
15970 " Max XRI is %d, Used XRI is %d\n",
15971 xri_index,
15972 phba->sli4_hba.max_cfg_param.max_xri,
15973 phba->sli4_hba.max_cfg_param.xri_used);
15974 return xri_index;
James Smart4f774512009-05-22 14:52:35 -040015975}
15976
15977/**
James Smart895427b2017-02-12 13:52:30 -080015978 * lpfc_sli4_post_sgl_list - post a block of ELS sgls to the port.
James Smart4f774512009-05-22 14:52:35 -040015979 * @phba: pointer to lpfc hba data structure.
James Smart8a9d2e82012-05-09 21:16:12 -040015980 * @post_sgl_list: pointer to els sgl entry list.
15981 * @count: number of els sgl entries on the list.
James Smart4f774512009-05-22 14:52:35 -040015982 *
15983 * This routine is invoked to post a block of driver's sgl pages to the
15984 * HBA using non-embedded mailbox command. No Lock is held. This routine
15985 * is only called when the driver is loading and after all IO has been
15986 * stopped.
15987 **/
James Smart8a9d2e82012-05-09 21:16:12 -040015988static int
James Smart895427b2017-02-12 13:52:30 -080015989lpfc_sli4_post_sgl_list(struct lpfc_hba *phba,
James Smart8a9d2e82012-05-09 21:16:12 -040015990 struct list_head *post_sgl_list,
15991 int post_cnt)
James Smart4f774512009-05-22 14:52:35 -040015992{
James Smart8a9d2e82012-05-09 21:16:12 -040015993 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
James Smart4f774512009-05-22 14:52:35 -040015994 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
15995 struct sgl_page_pairs *sgl_pg_pairs;
15996 void *viraddr;
15997 LPFC_MBOXQ_t *mbox;
15998 uint32_t reqlen, alloclen, pg_pairs;
15999 uint32_t mbox_tmo;
James Smart8a9d2e82012-05-09 21:16:12 -040016000 uint16_t xritag_start = 0;
16001 int rc = 0;
James Smart4f774512009-05-22 14:52:35 -040016002 uint32_t shdr_status, shdr_add_status;
16003 union lpfc_sli4_cfg_shdr *shdr;
16004
James Smart895427b2017-02-12 13:52:30 -080016005 reqlen = post_cnt * sizeof(struct sgl_page_pairs) +
James Smart4f774512009-05-22 14:52:35 -040016006 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
James Smart49198b32010-04-06 15:04:33 -040016007 if (reqlen > SLI4_PAGE_SIZE) {
James Smart895427b2017-02-12 13:52:30 -080016008 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smart4f774512009-05-22 14:52:35 -040016009 "2559 Block sgl registration required DMA "
16010 "size (%d) great than a page\n", reqlen);
16011 return -ENOMEM;
16012 }
James Smart895427b2017-02-12 13:52:30 -080016013
James Smart4f774512009-05-22 14:52:35 -040016014 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
James Smart6d368e52011-05-24 11:44:12 -040016015 if (!mbox)
James Smart4f774512009-05-22 14:52:35 -040016016 return -ENOMEM;
James Smart4f774512009-05-22 14:52:35 -040016017
16018 /* Allocate DMA memory and set up the non-embedded mailbox command */
16019 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16020 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
16021 LPFC_SLI4_MBX_NEMBED);
16022
16023 if (alloclen < reqlen) {
16024 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16025 "0285 Allocated DMA memory size (%d) is "
16026 "less than the requested DMA memory "
16027 "size (%d)\n", alloclen, reqlen);
16028 lpfc_sli4_mbox_cmd_free(phba, mbox);
16029 return -ENOMEM;
16030 }
James Smart4f774512009-05-22 14:52:35 -040016031 /* Set up the SGL pages in the non-embedded DMA pages */
James Smart6d368e52011-05-24 11:44:12 -040016032 viraddr = mbox->sge_array->addr[0];
James Smart4f774512009-05-22 14:52:35 -040016033 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
16034 sgl_pg_pairs = &sgl->sgl_pg_pairs;
16035
James Smart8a9d2e82012-05-09 21:16:12 -040016036 pg_pairs = 0;
16037 list_for_each_entry_safe(sglq_entry, sglq_next, post_sgl_list, list) {
James Smart4f774512009-05-22 14:52:35 -040016038 /* Set up the sge entry */
16039 sgl_pg_pairs->sgl_pg0_addr_lo =
16040 cpu_to_le32(putPaddrLow(sglq_entry->phys));
16041 sgl_pg_pairs->sgl_pg0_addr_hi =
16042 cpu_to_le32(putPaddrHigh(sglq_entry->phys));
16043 sgl_pg_pairs->sgl_pg1_addr_lo =
16044 cpu_to_le32(putPaddrLow(0));
16045 sgl_pg_pairs->sgl_pg1_addr_hi =
16046 cpu_to_le32(putPaddrHigh(0));
James Smart6d368e52011-05-24 11:44:12 -040016047
James Smart4f774512009-05-22 14:52:35 -040016048 /* Keep the first xritag on the list */
16049 if (pg_pairs == 0)
16050 xritag_start = sglq_entry->sli4_xritag;
16051 sgl_pg_pairs++;
James Smart8a9d2e82012-05-09 21:16:12 -040016052 pg_pairs++;
James Smart4f774512009-05-22 14:52:35 -040016053 }
James Smart6d368e52011-05-24 11:44:12 -040016054
16055 /* Complete initialization and perform endian conversion. */
James Smart4f774512009-05-22 14:52:35 -040016056 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
James Smart895427b2017-02-12 13:52:30 -080016057 bf_set(lpfc_post_sgl_pages_xricnt, sgl, post_cnt);
James Smart4f774512009-05-22 14:52:35 -040016058 sgl->word0 = cpu_to_le32(sgl->word0);
James Smart895427b2017-02-12 13:52:30 -080016059
James Smart4f774512009-05-22 14:52:35 -040016060 if (!phba->sli4_hba.intr_enable)
16061 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16062 else {
James Smarta183a152011-10-10 21:32:43 -040016063 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
James Smart4f774512009-05-22 14:52:35 -040016064 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
16065 }
16066 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
16067 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16068 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16069 if (rc != MBX_TIMEOUT)
16070 lpfc_sli4_mbox_cmd_free(phba, mbox);
16071 if (shdr_status || shdr_add_status || rc) {
16072 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16073 "2513 POST_SGL_BLOCK mailbox command failed "
16074 "status x%x add_status x%x mbx status x%x\n",
16075 shdr_status, shdr_add_status, rc);
16076 rc = -ENXIO;
16077 }
16078 return rc;
16079}
16080
16081/**
16082 * lpfc_sli4_post_scsi_sgl_block - post a block of scsi sgl list to firmware
16083 * @phba: pointer to lpfc hba data structure.
16084 * @sblist: pointer to scsi buffer list.
16085 * @count: number of scsi buffers on the list.
16086 *
16087 * This routine is invoked to post a block of @count scsi sgl pages from a
16088 * SCSI buffer list @sblist to the HBA using non-embedded mailbox command.
16089 * No Lock is held.
16090 *
16091 **/
16092int
James Smart8a9d2e82012-05-09 21:16:12 -040016093lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba *phba,
16094 struct list_head *sblist,
16095 int count)
James Smart4f774512009-05-22 14:52:35 -040016096{
16097 struct lpfc_scsi_buf *psb;
16098 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
16099 struct sgl_page_pairs *sgl_pg_pairs;
16100 void *viraddr;
16101 LPFC_MBOXQ_t *mbox;
16102 uint32_t reqlen, alloclen, pg_pairs;
16103 uint32_t mbox_tmo;
16104 uint16_t xritag_start = 0;
16105 int rc = 0;
16106 uint32_t shdr_status, shdr_add_status;
16107 dma_addr_t pdma_phys_bpl1;
16108 union lpfc_sli4_cfg_shdr *shdr;
16109
16110 /* Calculate the requested length of the dma memory */
James Smart8a9d2e82012-05-09 21:16:12 -040016111 reqlen = count * sizeof(struct sgl_page_pairs) +
James Smart4f774512009-05-22 14:52:35 -040016112 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
James Smart49198b32010-04-06 15:04:33 -040016113 if (reqlen > SLI4_PAGE_SIZE) {
James Smart4f774512009-05-22 14:52:35 -040016114 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
16115 "0217 Block sgl registration required DMA "
16116 "size (%d) great than a page\n", reqlen);
16117 return -ENOMEM;
16118 }
16119 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16120 if (!mbox) {
16121 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16122 "0283 Failed to allocate mbox cmd memory\n");
16123 return -ENOMEM;
16124 }
16125
16126 /* Allocate DMA memory and set up the non-embedded mailbox command */
16127 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16128 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
16129 LPFC_SLI4_MBX_NEMBED);
16130
16131 if (alloclen < reqlen) {
16132 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16133 "2561 Allocated DMA memory size (%d) is "
16134 "less than the requested DMA memory "
16135 "size (%d)\n", alloclen, reqlen);
16136 lpfc_sli4_mbox_cmd_free(phba, mbox);
16137 return -ENOMEM;
16138 }
James Smart6d368e52011-05-24 11:44:12 -040016139
James Smart4f774512009-05-22 14:52:35 -040016140 /* Get the first SGE entry from the non-embedded DMA memory */
James Smart4f774512009-05-22 14:52:35 -040016141 viraddr = mbox->sge_array->addr[0];
16142
16143 /* Set up the SGL pages in the non-embedded DMA pages */
16144 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
16145 sgl_pg_pairs = &sgl->sgl_pg_pairs;
16146
16147 pg_pairs = 0;
16148 list_for_each_entry(psb, sblist, list) {
16149 /* Set up the sge entry */
16150 sgl_pg_pairs->sgl_pg0_addr_lo =
16151 cpu_to_le32(putPaddrLow(psb->dma_phys_bpl));
16152 sgl_pg_pairs->sgl_pg0_addr_hi =
16153 cpu_to_le32(putPaddrHigh(psb->dma_phys_bpl));
16154 if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE)
16155 pdma_phys_bpl1 = psb->dma_phys_bpl + SGL_PAGE_SIZE;
16156 else
16157 pdma_phys_bpl1 = 0;
16158 sgl_pg_pairs->sgl_pg1_addr_lo =
16159 cpu_to_le32(putPaddrLow(pdma_phys_bpl1));
16160 sgl_pg_pairs->sgl_pg1_addr_hi =
16161 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1));
16162 /* Keep the first xritag on the list */
16163 if (pg_pairs == 0)
16164 xritag_start = psb->cur_iocbq.sli4_xritag;
16165 sgl_pg_pairs++;
16166 pg_pairs++;
16167 }
16168 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
16169 bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs);
16170 /* Perform endian conversion if necessary */
16171 sgl->word0 = cpu_to_le32(sgl->word0);
16172
16173 if (!phba->sli4_hba.intr_enable)
16174 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16175 else {
James Smarta183a152011-10-10 21:32:43 -040016176 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
James Smart4f774512009-05-22 14:52:35 -040016177 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
16178 }
16179 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
16180 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16181 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16182 if (rc != MBX_TIMEOUT)
16183 lpfc_sli4_mbox_cmd_free(phba, mbox);
16184 if (shdr_status || shdr_add_status || rc) {
16185 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16186 "2564 POST_SGL_BLOCK mailbox command failed "
16187 "status x%x add_status x%x mbx status x%x\n",
16188 shdr_status, shdr_add_status, rc);
16189 rc = -ENXIO;
16190 }
16191 return rc;
16192}
16193
16194/**
16195 * lpfc_fc_frame_check - Check that this frame is a valid frame to handle
16196 * @phba: pointer to lpfc_hba struct that the frame was received on
16197 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
16198 *
16199 * This function checks the fields in the @fc_hdr to see if the FC frame is a
16200 * valid type of frame that the LPFC driver will handle. This function will
16201 * return a zero if the frame is a valid frame or a non zero value when the
16202 * frame does not pass the check.
16203 **/
16204static int
16205lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr)
16206{
Tomas Henzl474ffb72010-12-22 16:52:40 +010016207 /* make rctl_names static to save stack space */
James Smart4f774512009-05-22 14:52:35 -040016208 struct fc_vft_header *fc_vft_hdr;
James Smart546fc852011-03-11 16:06:29 -050016209 uint32_t *header = (uint32_t *) fc_hdr;
James Smart4f774512009-05-22 14:52:35 -040016210
James Smartae9e28f2017-05-15 15:20:51 -070016211#define FC_RCTL_MDS_DIAGS 0xF4
16212
James Smart4f774512009-05-22 14:52:35 -040016213 switch (fc_hdr->fh_r_ctl) {
16214 case FC_RCTL_DD_UNCAT: /* uncategorized information */
16215 case FC_RCTL_DD_SOL_DATA: /* solicited data */
16216 case FC_RCTL_DD_UNSOL_CTL: /* unsolicited control */
16217 case FC_RCTL_DD_SOL_CTL: /* solicited control or reply */
16218 case FC_RCTL_DD_UNSOL_DATA: /* unsolicited data */
16219 case FC_RCTL_DD_DATA_DESC: /* data descriptor */
16220 case FC_RCTL_DD_UNSOL_CMD: /* unsolicited command */
16221 case FC_RCTL_DD_CMD_STATUS: /* command status */
16222 case FC_RCTL_ELS_REQ: /* extended link services request */
16223 case FC_RCTL_ELS_REP: /* extended link services reply */
16224 case FC_RCTL_ELS4_REQ: /* FC-4 ELS request */
16225 case FC_RCTL_ELS4_REP: /* FC-4 ELS reply */
16226 case FC_RCTL_BA_NOP: /* basic link service NOP */
16227 case FC_RCTL_BA_ABTS: /* basic link service abort */
16228 case FC_RCTL_BA_RMC: /* remove connection */
16229 case FC_RCTL_BA_ACC: /* basic accept */
16230 case FC_RCTL_BA_RJT: /* basic reject */
16231 case FC_RCTL_BA_PRMT:
16232 case FC_RCTL_ACK_1: /* acknowledge_1 */
16233 case FC_RCTL_ACK_0: /* acknowledge_0 */
16234 case FC_RCTL_P_RJT: /* port reject */
16235 case FC_RCTL_F_RJT: /* fabric reject */
16236 case FC_RCTL_P_BSY: /* port busy */
16237 case FC_RCTL_F_BSY: /* fabric busy to data frame */
16238 case FC_RCTL_F_BSYL: /* fabric busy to link control frame */
16239 case FC_RCTL_LCR: /* link credit reset */
James Smartae9e28f2017-05-15 15:20:51 -070016240 case FC_RCTL_MDS_DIAGS: /* MDS Diagnostics */
James Smart4f774512009-05-22 14:52:35 -040016241 case FC_RCTL_END: /* end */
16242 break;
16243 case FC_RCTL_VFTH: /* Virtual Fabric tagging Header */
16244 fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
16245 fc_hdr = &((struct fc_frame_header *)fc_vft_hdr)[1];
16246 return lpfc_fc_frame_check(phba, fc_hdr);
16247 default:
16248 goto drop;
16249 }
James Smartae9e28f2017-05-15 15:20:51 -070016250
16251#define FC_TYPE_VENDOR_UNIQUE 0xFF
16252
James Smart4f774512009-05-22 14:52:35 -040016253 switch (fc_hdr->fh_type) {
16254 case FC_TYPE_BLS:
16255 case FC_TYPE_ELS:
16256 case FC_TYPE_FCP:
16257 case FC_TYPE_CT:
James Smart895427b2017-02-12 13:52:30 -080016258 case FC_TYPE_NVME:
James Smartae9e28f2017-05-15 15:20:51 -070016259 case FC_TYPE_VENDOR_UNIQUE:
James Smart4f774512009-05-22 14:52:35 -040016260 break;
16261 case FC_TYPE_IP:
16262 case FC_TYPE_ILS:
16263 default:
16264 goto drop;
16265 }
James Smart546fc852011-03-11 16:06:29 -050016266
James Smart4f774512009-05-22 14:52:35 -040016267 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
James Smart78e1d202017-06-01 21:07:09 -070016268 "2538 Received frame rctl:x%x, type:x%x, "
James Smart88f43a02013-04-17 20:19:44 -040016269 "frame Data:%08x %08x %08x %08x %08x %08x %08x\n",
James Smart78e1d202017-06-01 21:07:09 -070016270 fc_hdr->fh_r_ctl, fc_hdr->fh_type,
16271 be32_to_cpu(header[0]), be32_to_cpu(header[1]),
16272 be32_to_cpu(header[2]), be32_to_cpu(header[3]),
16273 be32_to_cpu(header[4]), be32_to_cpu(header[5]),
16274 be32_to_cpu(header[6]));
James Smart4f774512009-05-22 14:52:35 -040016275 return 0;
16276drop:
16277 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
James Smart78e1d202017-06-01 21:07:09 -070016278 "2539 Dropped frame rctl:x%x type:x%x\n",
16279 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
James Smart4f774512009-05-22 14:52:35 -040016280 return 1;
16281}
16282
16283/**
16284 * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
16285 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
16286 *
16287 * This function processes the FC header to retrieve the VFI from the VF
16288 * header, if one exists. This function will return the VFI if one exists
16289 * or 0 if no VSAN Header exists.
16290 **/
16291static uint32_t
16292lpfc_fc_hdr_get_vfi(struct fc_frame_header *fc_hdr)
16293{
16294 struct fc_vft_header *fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
16295
16296 if (fc_hdr->fh_r_ctl != FC_RCTL_VFTH)
16297 return 0;
16298 return bf_get(fc_vft_hdr_vf_id, fc_vft_hdr);
16299}
16300
16301/**
16302 * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
16303 * @phba: Pointer to the HBA structure to search for the vport on
16304 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
16305 * @fcfi: The FC Fabric ID that the frame came from
16306 *
16307 * This function searches the @phba for a vport that matches the content of the
16308 * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
16309 * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
16310 * returns the matching vport pointer or NULL if unable to match frame to a
16311 * vport.
16312 **/
16313static struct lpfc_vport *
16314lpfc_fc_frame_to_vport(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr,
James Smart895427b2017-02-12 13:52:30 -080016315 uint16_t fcfi, uint32_t did)
James Smart4f774512009-05-22 14:52:35 -040016316{
16317 struct lpfc_vport **vports;
16318 struct lpfc_vport *vport = NULL;
16319 int i;
James Smart939723a2012-05-09 21:19:03 -040016320
James Smartbf086112011-08-21 21:48:13 -040016321 if (did == Fabric_DID)
16322 return phba->pport;
James Smart939723a2012-05-09 21:19:03 -040016323 if ((phba->pport->fc_flag & FC_PT2PT) &&
16324 !(phba->link_state == LPFC_HBA_READY))
16325 return phba->pport;
16326
James Smart4f774512009-05-22 14:52:35 -040016327 vports = lpfc_create_vport_work_array(phba);
James Smart895427b2017-02-12 13:52:30 -080016328 if (vports != NULL) {
James Smart4f774512009-05-22 14:52:35 -040016329 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
16330 if (phba->fcf.fcfi == fcfi &&
16331 vports[i]->vfi == lpfc_fc_hdr_get_vfi(fc_hdr) &&
16332 vports[i]->fc_myDID == did) {
16333 vport = vports[i];
16334 break;
16335 }
16336 }
James Smart895427b2017-02-12 13:52:30 -080016337 }
James Smart4f774512009-05-22 14:52:35 -040016338 lpfc_destroy_vport_work_array(phba, vports);
16339 return vport;
16340}
16341
16342/**
James Smart45ed1192009-10-02 15:17:02 -040016343 * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp
16344 * @vport: The vport to work on.
16345 *
16346 * This function updates the receive sequence time stamp for this vport. The
16347 * receive sequence time stamp indicates the time that the last frame of the
16348 * the sequence that has been idle for the longest amount of time was received.
16349 * the driver uses this time stamp to indicate if any received sequences have
16350 * timed out.
16351 **/
Rashika Kheria5d8b8162014-09-03 12:55:04 -040016352static void
James Smart45ed1192009-10-02 15:17:02 -040016353lpfc_update_rcv_time_stamp(struct lpfc_vport *vport)
16354{
16355 struct lpfc_dmabuf *h_buf;
16356 struct hbq_dmabuf *dmabuf = NULL;
16357
16358 /* get the oldest sequence on the rcv list */
16359 h_buf = list_get_first(&vport->rcv_buffer_list,
16360 struct lpfc_dmabuf, list);
16361 if (!h_buf)
16362 return;
16363 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
16364 vport->rcv_buffer_time_stamp = dmabuf->time_stamp;
16365}
16366
16367/**
16368 * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences.
16369 * @vport: The vport that the received sequences were sent to.
16370 *
16371 * This function cleans up all outstanding received sequences. This is called
16372 * by the driver when a link event or user action invalidates all the received
16373 * sequences.
16374 **/
16375void
16376lpfc_cleanup_rcv_buffers(struct lpfc_vport *vport)
16377{
16378 struct lpfc_dmabuf *h_buf, *hnext;
16379 struct lpfc_dmabuf *d_buf, *dnext;
16380 struct hbq_dmabuf *dmabuf = NULL;
16381
16382 /* start with the oldest sequence on the rcv list */
16383 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
16384 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
16385 list_del_init(&dmabuf->hbuf.list);
16386 list_for_each_entry_safe(d_buf, dnext,
16387 &dmabuf->dbuf.list, list) {
16388 list_del_init(&d_buf->list);
16389 lpfc_in_buf_free(vport->phba, d_buf);
16390 }
16391 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
16392 }
16393}
16394
16395/**
16396 * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences.
16397 * @vport: The vport that the received sequences were sent to.
16398 *
16399 * This function determines whether any received sequences have timed out by
16400 * first checking the vport's rcv_buffer_time_stamp. If this time_stamp
16401 * indicates that there is at least one timed out sequence this routine will
16402 * go through the received sequences one at a time from most inactive to most
16403 * active to determine which ones need to be cleaned up. Once it has determined
16404 * that a sequence needs to be cleaned up it will simply free up the resources
16405 * without sending an abort.
16406 **/
16407void
16408lpfc_rcv_seq_check_edtov(struct lpfc_vport *vport)
16409{
16410 struct lpfc_dmabuf *h_buf, *hnext;
16411 struct lpfc_dmabuf *d_buf, *dnext;
16412 struct hbq_dmabuf *dmabuf = NULL;
16413 unsigned long timeout;
16414 int abort_count = 0;
16415
16416 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
16417 vport->rcv_buffer_time_stamp);
16418 if (list_empty(&vport->rcv_buffer_list) ||
16419 time_before(jiffies, timeout))
16420 return;
16421 /* start with the oldest sequence on the rcv list */
16422 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
16423 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
16424 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
16425 dmabuf->time_stamp);
16426 if (time_before(jiffies, timeout))
16427 break;
16428 abort_count++;
16429 list_del_init(&dmabuf->hbuf.list);
16430 list_for_each_entry_safe(d_buf, dnext,
16431 &dmabuf->dbuf.list, list) {
16432 list_del_init(&d_buf->list);
16433 lpfc_in_buf_free(vport->phba, d_buf);
16434 }
16435 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
16436 }
16437 if (abort_count)
16438 lpfc_update_rcv_time_stamp(vport);
16439}
16440
16441/**
James Smart4f774512009-05-22 14:52:35 -040016442 * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
16443 * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
16444 *
16445 * This function searches through the existing incomplete sequences that have
16446 * been sent to this @vport. If the frame matches one of the incomplete
16447 * sequences then the dbuf in the @dmabuf is added to the list of frames that
16448 * make up that sequence. If no sequence is found that matches this frame then
16449 * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
16450 * This function returns a pointer to the first dmabuf in the sequence list that
16451 * the frame was linked to.
16452 **/
16453static struct hbq_dmabuf *
16454lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
16455{
16456 struct fc_frame_header *new_hdr;
16457 struct fc_frame_header *temp_hdr;
16458 struct lpfc_dmabuf *d_buf;
16459 struct lpfc_dmabuf *h_buf;
16460 struct hbq_dmabuf *seq_dmabuf = NULL;
16461 struct hbq_dmabuf *temp_dmabuf = NULL;
James Smart4360ca92015-12-16 18:12:04 -050016462 uint8_t found = 0;
James Smart4f774512009-05-22 14:52:35 -040016463
James Smart4d9ab992009-10-02 15:16:39 -040016464 INIT_LIST_HEAD(&dmabuf->dbuf.list);
James Smart45ed1192009-10-02 15:17:02 -040016465 dmabuf->time_stamp = jiffies;
James Smart4f774512009-05-22 14:52:35 -040016466 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
James Smart4360ca92015-12-16 18:12:04 -050016467
James Smart4f774512009-05-22 14:52:35 -040016468 /* Use the hdr_buf to find the sequence that this frame belongs to */
16469 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
16470 temp_hdr = (struct fc_frame_header *)h_buf->virt;
16471 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
16472 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
16473 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
16474 continue;
16475 /* found a pending sequence that matches this frame */
16476 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
16477 break;
16478 }
16479 if (!seq_dmabuf) {
16480 /*
16481 * This indicates first frame received for this sequence.
16482 * Queue the buffer on the vport's rcv_buffer_list.
16483 */
16484 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
James Smart45ed1192009-10-02 15:17:02 -040016485 lpfc_update_rcv_time_stamp(vport);
James Smart4f774512009-05-22 14:52:35 -040016486 return dmabuf;
16487 }
16488 temp_hdr = seq_dmabuf->hbuf.virt;
James Smarteeead812009-12-21 17:01:23 -050016489 if (be16_to_cpu(new_hdr->fh_seq_cnt) <
16490 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
James Smart4d9ab992009-10-02 15:16:39 -040016491 list_del_init(&seq_dmabuf->hbuf.list);
16492 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
16493 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
James Smart45ed1192009-10-02 15:17:02 -040016494 lpfc_update_rcv_time_stamp(vport);
James Smart4f774512009-05-22 14:52:35 -040016495 return dmabuf;
16496 }
James Smart45ed1192009-10-02 15:17:02 -040016497 /* move this sequence to the tail to indicate a young sequence */
16498 list_move_tail(&seq_dmabuf->hbuf.list, &vport->rcv_buffer_list);
16499 seq_dmabuf->time_stamp = jiffies;
16500 lpfc_update_rcv_time_stamp(vport);
James Smarteeead812009-12-21 17:01:23 -050016501 if (list_empty(&seq_dmabuf->dbuf.list)) {
16502 temp_hdr = dmabuf->hbuf.virt;
16503 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
16504 return seq_dmabuf;
16505 }
James Smart4f774512009-05-22 14:52:35 -040016506 /* find the correct place in the sequence to insert this frame */
James Smart4360ca92015-12-16 18:12:04 -050016507 d_buf = list_entry(seq_dmabuf->dbuf.list.prev, typeof(*d_buf), list);
16508 while (!found) {
James Smart4f774512009-05-22 14:52:35 -040016509 temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
16510 temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt;
16511 /*
16512 * If the frame's sequence count is greater than the frame on
16513 * the list then insert the frame right after this frame
16514 */
James Smarteeead812009-12-21 17:01:23 -050016515 if (be16_to_cpu(new_hdr->fh_seq_cnt) >
16516 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
James Smart4f774512009-05-22 14:52:35 -040016517 list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list);
James Smart4360ca92015-12-16 18:12:04 -050016518 found = 1;
16519 break;
James Smart4f774512009-05-22 14:52:35 -040016520 }
James Smart4360ca92015-12-16 18:12:04 -050016521
16522 if (&d_buf->list == &seq_dmabuf->dbuf.list)
16523 break;
16524 d_buf = list_entry(d_buf->list.prev, typeof(*d_buf), list);
James Smart4f774512009-05-22 14:52:35 -040016525 }
James Smart4360ca92015-12-16 18:12:04 -050016526
16527 if (found)
16528 return seq_dmabuf;
James Smart4f774512009-05-22 14:52:35 -040016529 return NULL;
16530}
16531
16532/**
James Smart6669f9b2009-10-02 15:16:45 -040016533 * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence
16534 * @vport: pointer to a vitural port
16535 * @dmabuf: pointer to a dmabuf that describes the FC sequence
16536 *
16537 * This function tries to abort from the partially assembed sequence, described
16538 * by the information from basic abbort @dmabuf. It checks to see whether such
16539 * partially assembled sequence held by the driver. If so, it shall free up all
16540 * the frames from the partially assembled sequence.
16541 *
16542 * Return
16543 * true -- if there is matching partially assembled sequence present and all
16544 * the frames freed with the sequence;
16545 * false -- if there is no matching partially assembled sequence present so
16546 * nothing got aborted in the lower layer driver
16547 **/
16548static bool
16549lpfc_sli4_abort_partial_seq(struct lpfc_vport *vport,
16550 struct hbq_dmabuf *dmabuf)
16551{
16552 struct fc_frame_header *new_hdr;
16553 struct fc_frame_header *temp_hdr;
16554 struct lpfc_dmabuf *d_buf, *n_buf, *h_buf;
16555 struct hbq_dmabuf *seq_dmabuf = NULL;
16556
16557 /* Use the hdr_buf to find the sequence that matches this frame */
16558 INIT_LIST_HEAD(&dmabuf->dbuf.list);
16559 INIT_LIST_HEAD(&dmabuf->hbuf.list);
16560 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
16561 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
16562 temp_hdr = (struct fc_frame_header *)h_buf->virt;
16563 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
16564 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
16565 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
16566 continue;
16567 /* found a pending sequence that matches this frame */
16568 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
16569 break;
16570 }
16571
16572 /* Free up all the frames from the partially assembled sequence */
16573 if (seq_dmabuf) {
16574 list_for_each_entry_safe(d_buf, n_buf,
16575 &seq_dmabuf->dbuf.list, list) {
16576 list_del_init(&d_buf->list);
16577 lpfc_in_buf_free(vport->phba, d_buf);
16578 }
16579 return true;
16580 }
16581 return false;
16582}
16583
16584/**
James Smart6dd9e312013-01-03 15:43:37 -050016585 * lpfc_sli4_abort_ulp_seq - Abort assembled unsol sequence from ulp
16586 * @vport: pointer to a vitural port
16587 * @dmabuf: pointer to a dmabuf that describes the FC sequence
16588 *
16589 * This function tries to abort from the assembed sequence from upper level
16590 * protocol, described by the information from basic abbort @dmabuf. It
16591 * checks to see whether such pending context exists at upper level protocol.
16592 * If so, it shall clean up the pending context.
16593 *
16594 * Return
16595 * true -- if there is matching pending context of the sequence cleaned
16596 * at ulp;
16597 * false -- if there is no matching pending context of the sequence present
16598 * at ulp.
16599 **/
16600static bool
16601lpfc_sli4_abort_ulp_seq(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
16602{
16603 struct lpfc_hba *phba = vport->phba;
16604 int handled;
16605
16606 /* Accepting abort at ulp with SLI4 only */
16607 if (phba->sli_rev < LPFC_SLI_REV4)
16608 return false;
16609
16610 /* Register all caring upper level protocols to attend abort */
16611 handled = lpfc_ct_handle_unsol_abort(phba, dmabuf);
16612 if (handled)
16613 return true;
16614
16615 return false;
16616}
16617
16618/**
James Smart546fc852011-03-11 16:06:29 -050016619 * lpfc_sli4_seq_abort_rsp_cmpl - BLS ABORT RSP seq abort iocb complete handler
James Smart6669f9b2009-10-02 15:16:45 -040016620 * @phba: Pointer to HBA context object.
16621 * @cmd_iocbq: pointer to the command iocbq structure.
16622 * @rsp_iocbq: pointer to the response iocbq structure.
16623 *
James Smart546fc852011-03-11 16:06:29 -050016624 * This function handles the sequence abort response iocb command complete
James Smart6669f9b2009-10-02 15:16:45 -040016625 * event. It properly releases the memory allocated to the sequence abort
16626 * accept iocb.
16627 **/
16628static void
James Smart546fc852011-03-11 16:06:29 -050016629lpfc_sli4_seq_abort_rsp_cmpl(struct lpfc_hba *phba,
James Smart6669f9b2009-10-02 15:16:45 -040016630 struct lpfc_iocbq *cmd_iocbq,
16631 struct lpfc_iocbq *rsp_iocbq)
16632{
James Smart6dd9e312013-01-03 15:43:37 -050016633 struct lpfc_nodelist *ndlp;
16634
16635 if (cmd_iocbq) {
16636 ndlp = (struct lpfc_nodelist *)cmd_iocbq->context1;
16637 lpfc_nlp_put(ndlp);
16638 lpfc_nlp_not_used(ndlp);
James Smart6669f9b2009-10-02 15:16:45 -040016639 lpfc_sli_release_iocbq(phba, cmd_iocbq);
James Smart6dd9e312013-01-03 15:43:37 -050016640 }
James Smart6b5151f2012-01-18 16:24:06 -050016641
16642 /* Failure means BLS ABORT RSP did not get delivered to remote node*/
16643 if (rsp_iocbq && rsp_iocbq->iocb.ulpStatus)
16644 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16645 "3154 BLS ABORT RSP failed, data: x%x/x%x\n",
16646 rsp_iocbq->iocb.ulpStatus,
16647 rsp_iocbq->iocb.un.ulpWord[4]);
James Smart6669f9b2009-10-02 15:16:45 -040016648}
16649
16650/**
James Smart6d368e52011-05-24 11:44:12 -040016651 * lpfc_sli4_xri_inrange - check xri is in range of xris owned by driver.
16652 * @phba: Pointer to HBA context object.
16653 * @xri: xri id in transaction.
16654 *
16655 * This function validates the xri maps to the known range of XRIs allocated an
16656 * used by the driver.
16657 **/
James Smart7851fe22011-07-22 18:36:52 -040016658uint16_t
James Smart6d368e52011-05-24 11:44:12 -040016659lpfc_sli4_xri_inrange(struct lpfc_hba *phba,
16660 uint16_t xri)
16661{
James Smarta2fc4aef2014-09-03 12:57:55 -040016662 uint16_t i;
James Smart6d368e52011-05-24 11:44:12 -040016663
16664 for (i = 0; i < phba->sli4_hba.max_cfg_param.max_xri; i++) {
16665 if (xri == phba->sli4_hba.xri_ids[i])
16666 return i;
16667 }
16668 return NO_XRI;
16669}
16670
James Smart6d368e52011-05-24 11:44:12 -040016671/**
James Smart546fc852011-03-11 16:06:29 -050016672 * lpfc_sli4_seq_abort_rsp - bls rsp to sequence abort
James Smart6669f9b2009-10-02 15:16:45 -040016673 * @phba: Pointer to HBA context object.
16674 * @fc_hdr: pointer to a FC frame header.
16675 *
James Smart546fc852011-03-11 16:06:29 -050016676 * This function sends a basic response to a previous unsol sequence abort
James Smart6669f9b2009-10-02 15:16:45 -040016677 * event after aborting the sequence handling.
16678 **/
James Smart86c67372017-04-21 16:05:04 -070016679void
James Smart6dd9e312013-01-03 15:43:37 -050016680lpfc_sli4_seq_abort_rsp(struct lpfc_vport *vport,
16681 struct fc_frame_header *fc_hdr, bool aborted)
James Smart6669f9b2009-10-02 15:16:45 -040016682{
James Smart6dd9e312013-01-03 15:43:37 -050016683 struct lpfc_hba *phba = vport->phba;
James Smart6669f9b2009-10-02 15:16:45 -040016684 struct lpfc_iocbq *ctiocb = NULL;
16685 struct lpfc_nodelist *ndlp;
James Smartee0f4fe2012-05-09 21:19:14 -040016686 uint16_t oxid, rxid, xri, lxri;
James Smart5ffc2662009-11-18 15:39:44 -050016687 uint32_t sid, fctl;
James Smart6669f9b2009-10-02 15:16:45 -040016688 IOCB_t *icmd;
James Smart546fc852011-03-11 16:06:29 -050016689 int rc;
James Smart6669f9b2009-10-02 15:16:45 -040016690
16691 if (!lpfc_is_link_up(phba))
16692 return;
16693
16694 sid = sli4_sid_from_fc_hdr(fc_hdr);
16695 oxid = be16_to_cpu(fc_hdr->fh_ox_id);
James Smart5ffc2662009-11-18 15:39:44 -050016696 rxid = be16_to_cpu(fc_hdr->fh_rx_id);
James Smart6669f9b2009-10-02 15:16:45 -040016697
James Smart6dd9e312013-01-03 15:43:37 -050016698 ndlp = lpfc_findnode_did(vport, sid);
James Smart6669f9b2009-10-02 15:16:45 -040016699 if (!ndlp) {
James Smart9d3d3402017-04-21 16:05:00 -070016700 ndlp = lpfc_nlp_init(vport, sid);
James Smart6dd9e312013-01-03 15:43:37 -050016701 if (!ndlp) {
16702 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
16703 "1268 Failed to allocate ndlp for "
16704 "oxid:x%x SID:x%x\n", oxid, sid);
16705 return;
16706 }
James Smart6dd9e312013-01-03 15:43:37 -050016707 /* Put ndlp onto pport node list */
16708 lpfc_enqueue_node(vport, ndlp);
16709 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
16710 /* re-setup ndlp without removing from node list */
16711 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
16712 if (!ndlp) {
16713 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
16714 "3275 Failed to active ndlp found "
16715 "for oxid:x%x SID:x%x\n", oxid, sid);
16716 return;
16717 }
James Smart6669f9b2009-10-02 15:16:45 -040016718 }
16719
James Smart546fc852011-03-11 16:06:29 -050016720 /* Allocate buffer for rsp iocb */
James Smart6669f9b2009-10-02 15:16:45 -040016721 ctiocb = lpfc_sli_get_iocbq(phba);
16722 if (!ctiocb)
16723 return;
16724
James Smart5ffc2662009-11-18 15:39:44 -050016725 /* Extract the F_CTL field from FC_HDR */
16726 fctl = sli4_fctl_from_fc_hdr(fc_hdr);
16727
James Smart6669f9b2009-10-02 15:16:45 -040016728 icmd = &ctiocb->iocb;
James Smart6669f9b2009-10-02 15:16:45 -040016729 icmd->un.xseq64.bdl.bdeSize = 0;
James Smart5ffc2662009-11-18 15:39:44 -050016730 icmd->un.xseq64.bdl.ulpIoTag32 = 0;
James Smart6669f9b2009-10-02 15:16:45 -040016731 icmd->un.xseq64.w5.hcsw.Dfctl = 0;
16732 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_ACC;
16733 icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_BLS;
16734
16735 /* Fill in the rest of iocb fields */
16736 icmd->ulpCommand = CMD_XMIT_BLS_RSP64_CX;
16737 icmd->ulpBdeCount = 0;
16738 icmd->ulpLe = 1;
16739 icmd->ulpClass = CLASS3;
James Smart6d368e52011-05-24 11:44:12 -040016740 icmd->ulpContext = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
James Smart6dd9e312013-01-03 15:43:37 -050016741 ctiocb->context1 = lpfc_nlp_get(ndlp);
James Smart6669f9b2009-10-02 15:16:45 -040016742
James Smart6669f9b2009-10-02 15:16:45 -040016743 ctiocb->iocb_cmpl = NULL;
16744 ctiocb->vport = phba->pport;
James Smart546fc852011-03-11 16:06:29 -050016745 ctiocb->iocb_cmpl = lpfc_sli4_seq_abort_rsp_cmpl;
James Smart6d368e52011-05-24 11:44:12 -040016746 ctiocb->sli4_lxritag = NO_XRI;
James Smart546fc852011-03-11 16:06:29 -050016747 ctiocb->sli4_xritag = NO_XRI;
16748
James Smartee0f4fe2012-05-09 21:19:14 -040016749 if (fctl & FC_FC_EX_CTX)
16750 /* Exchange responder sent the abort so we
16751 * own the oxid.
16752 */
16753 xri = oxid;
16754 else
16755 xri = rxid;
16756 lxri = lpfc_sli4_xri_inrange(phba, xri);
16757 if (lxri != NO_XRI)
16758 lpfc_set_rrq_active(phba, ndlp, lxri,
16759 (xri == oxid) ? rxid : oxid, 0);
James Smart6dd9e312013-01-03 15:43:37 -050016760 /* For BA_ABTS from exchange responder, if the logical xri with
16761 * the oxid maps to the FCP XRI range, the port no longer has
16762 * that exchange context, send a BLS_RJT. Override the IOCB for
16763 * a BA_RJT.
James Smart546fc852011-03-11 16:06:29 -050016764 */
James Smart6dd9e312013-01-03 15:43:37 -050016765 if ((fctl & FC_FC_EX_CTX) &&
James Smart895427b2017-02-12 13:52:30 -080016766 (lxri > lpfc_sli4_get_iocb_cnt(phba))) {
James Smart6dd9e312013-01-03 15:43:37 -050016767 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
16768 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
16769 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
16770 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
16771 }
16772
16773 /* If BA_ABTS failed to abort a partially assembled receive sequence,
16774 * the driver no longer has that exchange, send a BLS_RJT. Override
16775 * the IOCB for a BA_RJT.
16776 */
16777 if (aborted == false) {
James Smart546fc852011-03-11 16:06:29 -050016778 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
16779 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
16780 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
16781 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
16782 }
James Smart6669f9b2009-10-02 15:16:45 -040016783
James Smart5ffc2662009-11-18 15:39:44 -050016784 if (fctl & FC_FC_EX_CTX) {
16785 /* ABTS sent by responder to CT exchange, construction
16786 * of BA_ACC will use OX_ID from ABTS for the XRI_TAG
16787 * field and RX_ID from ABTS for RX_ID field.
16788 */
James Smart546fc852011-03-11 16:06:29 -050016789 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_RSP);
James Smart5ffc2662009-11-18 15:39:44 -050016790 } else {
16791 /* ABTS sent by initiator to CT exchange, construction
16792 * of BA_ACC will need to allocate a new XRI as for the
James Smartf09c3ac2012-03-01 22:33:29 -050016793 * XRI_TAG field.
James Smart5ffc2662009-11-18 15:39:44 -050016794 */
James Smart546fc852011-03-11 16:06:29 -050016795 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_INT);
James Smart5ffc2662009-11-18 15:39:44 -050016796 }
James Smartf09c3ac2012-03-01 22:33:29 -050016797 bf_set(lpfc_abts_rxid, &icmd->un.bls_rsp, rxid);
James Smart546fc852011-03-11 16:06:29 -050016798 bf_set(lpfc_abts_oxid, &icmd->un.bls_rsp, oxid);
James Smart5ffc2662009-11-18 15:39:44 -050016799
James Smart546fc852011-03-11 16:06:29 -050016800 /* Xmit CT abts response on exchange <xid> */
James Smart6dd9e312013-01-03 15:43:37 -050016801 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
16802 "1200 Send BLS cmd x%x on oxid x%x Data: x%x\n",
16803 icmd->un.xseq64.w5.hcsw.Rctl, oxid, phba->link_state);
James Smart546fc852011-03-11 16:06:29 -050016804
16805 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
16806 if (rc == IOCB_ERROR) {
James Smart6dd9e312013-01-03 15:43:37 -050016807 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
16808 "2925 Failed to issue CT ABTS RSP x%x on "
16809 "xri x%x, Data x%x\n",
16810 icmd->un.xseq64.w5.hcsw.Rctl, oxid,
16811 phba->link_state);
16812 lpfc_nlp_put(ndlp);
16813 ctiocb->context1 = NULL;
James Smart546fc852011-03-11 16:06:29 -050016814 lpfc_sli_release_iocbq(phba, ctiocb);
16815 }
James Smart6669f9b2009-10-02 15:16:45 -040016816}
16817
16818/**
16819 * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event
16820 * @vport: Pointer to the vport on which this sequence was received
16821 * @dmabuf: pointer to a dmabuf that describes the FC sequence
16822 *
16823 * This function handles an SLI-4 unsolicited abort event. If the unsolicited
16824 * receive sequence is only partially assembed by the driver, it shall abort
16825 * the partially assembled frames for the sequence. Otherwise, if the
16826 * unsolicited receive sequence has been completely assembled and passed to
16827 * the Upper Layer Protocol (UPL), it then mark the per oxid status for the
16828 * unsolicited sequence has been aborted. After that, it will issue a basic
16829 * accept to accept the abort.
16830 **/
Rashika Kheria5d8b8162014-09-03 12:55:04 -040016831static void
James Smart6669f9b2009-10-02 15:16:45 -040016832lpfc_sli4_handle_unsol_abort(struct lpfc_vport *vport,
16833 struct hbq_dmabuf *dmabuf)
16834{
16835 struct lpfc_hba *phba = vport->phba;
16836 struct fc_frame_header fc_hdr;
James Smart5ffc2662009-11-18 15:39:44 -050016837 uint32_t fctl;
James Smart6dd9e312013-01-03 15:43:37 -050016838 bool aborted;
James Smart6669f9b2009-10-02 15:16:45 -040016839
James Smart6669f9b2009-10-02 15:16:45 -040016840 /* Make a copy of fc_hdr before the dmabuf being released */
16841 memcpy(&fc_hdr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header));
James Smart5ffc2662009-11-18 15:39:44 -050016842 fctl = sli4_fctl_from_fc_hdr(&fc_hdr);
James Smart6669f9b2009-10-02 15:16:45 -040016843
James Smart5ffc2662009-11-18 15:39:44 -050016844 if (fctl & FC_FC_EX_CTX) {
James Smart6dd9e312013-01-03 15:43:37 -050016845 /* ABTS by responder to exchange, no cleanup needed */
16846 aborted = true;
James Smart5ffc2662009-11-18 15:39:44 -050016847 } else {
James Smart6dd9e312013-01-03 15:43:37 -050016848 /* ABTS by initiator to exchange, need to do cleanup */
16849 aborted = lpfc_sli4_abort_partial_seq(vport, dmabuf);
16850 if (aborted == false)
16851 aborted = lpfc_sli4_abort_ulp_seq(vport, dmabuf);
James Smart5ffc2662009-11-18 15:39:44 -050016852 }
James Smart6dd9e312013-01-03 15:43:37 -050016853 lpfc_in_buf_free(phba, &dmabuf->dbuf);
16854
James Smart86c67372017-04-21 16:05:04 -070016855 if (phba->nvmet_support) {
16856 lpfc_nvmet_rcv_unsol_abort(vport, &fc_hdr);
16857 return;
16858 }
16859
James Smart6dd9e312013-01-03 15:43:37 -050016860 /* Respond with BA_ACC or BA_RJT accordingly */
16861 lpfc_sli4_seq_abort_rsp(vport, &fc_hdr, aborted);
James Smart6669f9b2009-10-02 15:16:45 -040016862}
16863
16864/**
James Smart4f774512009-05-22 14:52:35 -040016865 * lpfc_seq_complete - Indicates if a sequence is complete
16866 * @dmabuf: pointer to a dmabuf that describes the FC sequence
16867 *
16868 * This function checks the sequence, starting with the frame described by
16869 * @dmabuf, to see if all the frames associated with this sequence are present.
16870 * the frames associated with this sequence are linked to the @dmabuf using the
16871 * dbuf list. This function looks for two major things. 1) That the first frame
16872 * has a sequence count of zero. 2) There is a frame with last frame of sequence
16873 * set. 3) That there are no holes in the sequence count. The function will
16874 * return 1 when the sequence is complete, otherwise it will return 0.
16875 **/
16876static int
16877lpfc_seq_complete(struct hbq_dmabuf *dmabuf)
16878{
16879 struct fc_frame_header *hdr;
16880 struct lpfc_dmabuf *d_buf;
16881 struct hbq_dmabuf *seq_dmabuf;
16882 uint32_t fctl;
16883 int seq_count = 0;
16884
16885 hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
16886 /* make sure first fame of sequence has a sequence count of zero */
16887 if (hdr->fh_seq_cnt != seq_count)
16888 return 0;
16889 fctl = (hdr->fh_f_ctl[0] << 16 |
16890 hdr->fh_f_ctl[1] << 8 |
16891 hdr->fh_f_ctl[2]);
16892 /* If last frame of sequence we can return success. */
16893 if (fctl & FC_FC_END_SEQ)
16894 return 1;
16895 list_for_each_entry(d_buf, &dmabuf->dbuf.list, list) {
16896 seq_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
16897 hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
16898 /* If there is a hole in the sequence count then fail. */
James Smarteeead812009-12-21 17:01:23 -050016899 if (++seq_count != be16_to_cpu(hdr->fh_seq_cnt))
James Smart4f774512009-05-22 14:52:35 -040016900 return 0;
16901 fctl = (hdr->fh_f_ctl[0] << 16 |
16902 hdr->fh_f_ctl[1] << 8 |
16903 hdr->fh_f_ctl[2]);
16904 /* If last frame of sequence we can return success. */
16905 if (fctl & FC_FC_END_SEQ)
16906 return 1;
16907 }
16908 return 0;
16909}
16910
16911/**
16912 * lpfc_prep_seq - Prep sequence for ULP processing
16913 * @vport: Pointer to the vport on which this sequence was received
16914 * @dmabuf: pointer to a dmabuf that describes the FC sequence
16915 *
16916 * This function takes a sequence, described by a list of frames, and creates
16917 * a list of iocbq structures to describe the sequence. This iocbq list will be
16918 * used to issue to the generic unsolicited sequence handler. This routine
16919 * returns a pointer to the first iocbq in the list. If the function is unable
16920 * to allocate an iocbq then it throw out the received frames that were not
16921 * able to be described and return a pointer to the first iocbq. If unable to
16922 * allocate any iocbqs (including the first) this function will return NULL.
16923 **/
16924static struct lpfc_iocbq *
16925lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf)
16926{
James Smart7851fe22011-07-22 18:36:52 -040016927 struct hbq_dmabuf *hbq_buf;
James Smart4f774512009-05-22 14:52:35 -040016928 struct lpfc_dmabuf *d_buf, *n_buf;
16929 struct lpfc_iocbq *first_iocbq, *iocbq;
16930 struct fc_frame_header *fc_hdr;
16931 uint32_t sid;
James Smart7851fe22011-07-22 18:36:52 -040016932 uint32_t len, tot_len;
James Smarteeead812009-12-21 17:01:23 -050016933 struct ulp_bde64 *pbde;
James Smart4f774512009-05-22 14:52:35 -040016934
16935 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
16936 /* remove from receive buffer list */
16937 list_del_init(&seq_dmabuf->hbuf.list);
James Smart45ed1192009-10-02 15:17:02 -040016938 lpfc_update_rcv_time_stamp(vport);
James Smart4f774512009-05-22 14:52:35 -040016939 /* get the Remote Port's SID */
James Smart6669f9b2009-10-02 15:16:45 -040016940 sid = sli4_sid_from_fc_hdr(fc_hdr);
James Smart7851fe22011-07-22 18:36:52 -040016941 tot_len = 0;
James Smart4f774512009-05-22 14:52:35 -040016942 /* Get an iocbq struct to fill in. */
16943 first_iocbq = lpfc_sli_get_iocbq(vport->phba);
16944 if (first_iocbq) {
16945 /* Initialize the first IOCB. */
James Smart8fa38512009-07-19 10:01:03 -040016946 first_iocbq->iocb.unsli3.rcvsli3.acc_len = 0;
James Smart4f774512009-05-22 14:52:35 -040016947 first_iocbq->iocb.ulpStatus = IOSTAT_SUCCESS;
James Smart895427b2017-02-12 13:52:30 -080016948 first_iocbq->vport = vport;
James Smart939723a2012-05-09 21:19:03 -040016949
16950 /* Check FC Header to see what TYPE of frame we are rcv'ing */
16951 if (sli4_type_from_fc_hdr(fc_hdr) == FC_TYPE_ELS) {
16952 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_ELS64_CX;
16953 first_iocbq->iocb.un.rcvels.parmRo =
16954 sli4_did_from_fc_hdr(fc_hdr);
16955 first_iocbq->iocb.ulpPU = PARM_NPIV_DID;
16956 } else
16957 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_SEQ64_CX;
James Smart7851fe22011-07-22 18:36:52 -040016958 first_iocbq->iocb.ulpContext = NO_XRI;
16959 first_iocbq->iocb.unsli3.rcvsli3.ox_id =
16960 be16_to_cpu(fc_hdr->fh_ox_id);
16961 /* iocbq is prepped for internal consumption. Physical vpi. */
16962 first_iocbq->iocb.unsli3.rcvsli3.vpi =
16963 vport->phba->vpi_ids[vport->vpi];
James Smart4f774512009-05-22 14:52:35 -040016964 /* put the first buffer into the first IOCBq */
James Smart48a5a662013-07-15 18:32:28 -040016965 tot_len = bf_get(lpfc_rcqe_length,
16966 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
16967
James Smart4f774512009-05-22 14:52:35 -040016968 first_iocbq->context2 = &seq_dmabuf->dbuf;
16969 first_iocbq->context3 = NULL;
16970 first_iocbq->iocb.ulpBdeCount = 1;
James Smart48a5a662013-07-15 18:32:28 -040016971 if (tot_len > LPFC_DATA_BUF_SIZE)
16972 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize =
James Smart4f774512009-05-22 14:52:35 -040016973 LPFC_DATA_BUF_SIZE;
James Smart48a5a662013-07-15 18:32:28 -040016974 else
16975 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize = tot_len;
16976
James Smart4f774512009-05-22 14:52:35 -040016977 first_iocbq->iocb.un.rcvels.remoteID = sid;
James Smart48a5a662013-07-15 18:32:28 -040016978
James Smart7851fe22011-07-22 18:36:52 -040016979 first_iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
James Smart4f774512009-05-22 14:52:35 -040016980 }
16981 iocbq = first_iocbq;
16982 /*
16983 * Each IOCBq can have two Buffers assigned, so go through the list
16984 * of buffers for this sequence and save two buffers in each IOCBq
16985 */
16986 list_for_each_entry_safe(d_buf, n_buf, &seq_dmabuf->dbuf.list, list) {
16987 if (!iocbq) {
16988 lpfc_in_buf_free(vport->phba, d_buf);
16989 continue;
16990 }
16991 if (!iocbq->context3) {
16992 iocbq->context3 = d_buf;
16993 iocbq->iocb.ulpBdeCount++;
James Smart7851fe22011-07-22 18:36:52 -040016994 /* We need to get the size out of the right CQE */
16995 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
16996 len = bf_get(lpfc_rcqe_length,
16997 &hbq_buf->cq_event.cqe.rcqe_cmpl);
James Smart48a5a662013-07-15 18:32:28 -040016998 pbde = (struct ulp_bde64 *)
16999 &iocbq->iocb.unsli3.sli3Words[4];
17000 if (len > LPFC_DATA_BUF_SIZE)
17001 pbde->tus.f.bdeSize = LPFC_DATA_BUF_SIZE;
17002 else
17003 pbde->tus.f.bdeSize = len;
17004
James Smart7851fe22011-07-22 18:36:52 -040017005 iocbq->iocb.unsli3.rcvsli3.acc_len += len;
17006 tot_len += len;
James Smart4f774512009-05-22 14:52:35 -040017007 } else {
17008 iocbq = lpfc_sli_get_iocbq(vport->phba);
17009 if (!iocbq) {
17010 if (first_iocbq) {
17011 first_iocbq->iocb.ulpStatus =
17012 IOSTAT_FCP_RSP_ERROR;
17013 first_iocbq->iocb.un.ulpWord[4] =
17014 IOERR_NO_RESOURCES;
17015 }
17016 lpfc_in_buf_free(vport->phba, d_buf);
17017 continue;
17018 }
James Smart7851fe22011-07-22 18:36:52 -040017019 /* We need to get the size out of the right CQE */
17020 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
17021 len = bf_get(lpfc_rcqe_length,
17022 &hbq_buf->cq_event.cqe.rcqe_cmpl);
James Smart48a5a662013-07-15 18:32:28 -040017023 iocbq->context2 = d_buf;
17024 iocbq->context3 = NULL;
17025 iocbq->iocb.ulpBdeCount = 1;
17026 if (len > LPFC_DATA_BUF_SIZE)
17027 iocbq->iocb.un.cont64[0].tus.f.bdeSize =
17028 LPFC_DATA_BUF_SIZE;
17029 else
17030 iocbq->iocb.un.cont64[0].tus.f.bdeSize = len;
17031
James Smart7851fe22011-07-22 18:36:52 -040017032 tot_len += len;
17033 iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
17034
James Smart4f774512009-05-22 14:52:35 -040017035 iocbq->iocb.un.rcvels.remoteID = sid;
17036 list_add_tail(&iocbq->list, &first_iocbq->list);
17037 }
17038 }
17039 return first_iocbq;
17040}
17041
James Smart6669f9b2009-10-02 15:16:45 -040017042static void
17043lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *vport,
17044 struct hbq_dmabuf *seq_dmabuf)
17045{
17046 struct fc_frame_header *fc_hdr;
17047 struct lpfc_iocbq *iocbq, *curr_iocb, *next_iocb;
17048 struct lpfc_hba *phba = vport->phba;
17049
17050 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
17051 iocbq = lpfc_prep_seq(vport, seq_dmabuf);
17052 if (!iocbq) {
17053 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17054 "2707 Ring %d handler: Failed to allocate "
17055 "iocb Rctl x%x Type x%x received\n",
17056 LPFC_ELS_RING,
17057 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
17058 return;
17059 }
17060 if (!lpfc_complete_unsol_iocb(phba,
James Smart895427b2017-02-12 13:52:30 -080017061 phba->sli4_hba.els_wq->pring,
James Smart6669f9b2009-10-02 15:16:45 -040017062 iocbq, fc_hdr->fh_r_ctl,
17063 fc_hdr->fh_type))
James Smart6d368e52011-05-24 11:44:12 -040017064 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smart6669f9b2009-10-02 15:16:45 -040017065 "2540 Ring %d handler: unexpected Rctl "
17066 "x%x Type x%x received\n",
17067 LPFC_ELS_RING,
17068 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
17069
17070 /* Free iocb created in lpfc_prep_seq */
17071 list_for_each_entry_safe(curr_iocb, next_iocb,
17072 &iocbq->list, list) {
17073 list_del_init(&curr_iocb->list);
17074 lpfc_sli_release_iocbq(phba, curr_iocb);
17075 }
17076 lpfc_sli_release_iocbq(phba, iocbq);
17077}
17078
James Smartae9e28f2017-05-15 15:20:51 -070017079static void
17080lpfc_sli4_mds_loopback_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
17081 struct lpfc_iocbq *rspiocb)
17082{
17083 struct lpfc_dmabuf *pcmd = cmdiocb->context2;
17084
17085 if (pcmd && pcmd->virt)
Romain Perier771db5c2017-07-06 10:13:05 +020017086 dma_pool_free(phba->lpfc_drb_pool, pcmd->virt, pcmd->phys);
James Smartae9e28f2017-05-15 15:20:51 -070017087 kfree(pcmd);
17088 lpfc_sli_release_iocbq(phba, cmdiocb);
17089}
17090
17091static void
17092lpfc_sli4_handle_mds_loopback(struct lpfc_vport *vport,
17093 struct hbq_dmabuf *dmabuf)
17094{
17095 struct fc_frame_header *fc_hdr;
17096 struct lpfc_hba *phba = vport->phba;
17097 struct lpfc_iocbq *iocbq = NULL;
17098 union lpfc_wqe *wqe;
17099 struct lpfc_dmabuf *pcmd = NULL;
17100 uint32_t frame_len;
17101 int rc;
17102
17103 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
17104 frame_len = bf_get(lpfc_rcqe_length, &dmabuf->cq_event.cqe.rcqe_cmpl);
17105
17106 /* Send the received frame back */
17107 iocbq = lpfc_sli_get_iocbq(phba);
17108 if (!iocbq)
17109 goto exit;
17110
17111 /* Allocate buffer for command payload */
17112 pcmd = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
17113 if (pcmd)
Romain Perier771db5c2017-07-06 10:13:05 +020017114 pcmd->virt = dma_pool_alloc(phba->lpfc_drb_pool, GFP_KERNEL,
James Smartae9e28f2017-05-15 15:20:51 -070017115 &pcmd->phys);
17116 if (!pcmd || !pcmd->virt)
17117 goto exit;
17118
17119 INIT_LIST_HEAD(&pcmd->list);
17120
17121 /* copyin the payload */
17122 memcpy(pcmd->virt, dmabuf->dbuf.virt, frame_len);
17123
17124 /* fill in BDE's for command */
17125 iocbq->iocb.un.xseq64.bdl.addrHigh = putPaddrHigh(pcmd->phys);
17126 iocbq->iocb.un.xseq64.bdl.addrLow = putPaddrLow(pcmd->phys);
17127 iocbq->iocb.un.xseq64.bdl.bdeFlags = BUFF_TYPE_BDE_64;
17128 iocbq->iocb.un.xseq64.bdl.bdeSize = frame_len;
17129
17130 iocbq->context2 = pcmd;
17131 iocbq->vport = vport;
17132 iocbq->iocb_flag &= ~LPFC_FIP_ELS_ID_MASK;
17133 iocbq->iocb_flag |= LPFC_USE_FCPWQIDX;
17134
17135 /*
17136 * Setup rest of the iocb as though it were a WQE
17137 * Build the SEND_FRAME WQE
17138 */
17139 wqe = (union lpfc_wqe *)&iocbq->iocb;
17140
17141 wqe->send_frame.frame_len = frame_len;
17142 wqe->send_frame.fc_hdr_wd0 = be32_to_cpu(*((uint32_t *)fc_hdr));
17143 wqe->send_frame.fc_hdr_wd1 = be32_to_cpu(*((uint32_t *)fc_hdr + 1));
17144 wqe->send_frame.fc_hdr_wd2 = be32_to_cpu(*((uint32_t *)fc_hdr + 2));
17145 wqe->send_frame.fc_hdr_wd3 = be32_to_cpu(*((uint32_t *)fc_hdr + 3));
17146 wqe->send_frame.fc_hdr_wd4 = be32_to_cpu(*((uint32_t *)fc_hdr + 4));
17147 wqe->send_frame.fc_hdr_wd5 = be32_to_cpu(*((uint32_t *)fc_hdr + 5));
17148
17149 iocbq->iocb.ulpCommand = CMD_SEND_FRAME;
17150 iocbq->iocb.ulpLe = 1;
17151 iocbq->iocb_cmpl = lpfc_sli4_mds_loopback_cmpl;
17152 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocbq, 0);
17153 if (rc == IOCB_ERROR)
17154 goto exit;
17155
17156 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17157 return;
17158
17159exit:
17160 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
17161 "2023 Unable to process MDS loopback frame\n");
17162 if (pcmd && pcmd->virt)
Romain Perier771db5c2017-07-06 10:13:05 +020017163 dma_pool_free(phba->lpfc_drb_pool, pcmd->virt, pcmd->phys);
James Smartae9e28f2017-05-15 15:20:51 -070017164 kfree(pcmd);
Dick Kennedy6d697652017-09-29 17:34:28 -070017165 if (iocbq)
17166 lpfc_sli_release_iocbq(phba, iocbq);
James Smartae9e28f2017-05-15 15:20:51 -070017167 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17168}
17169
James Smart4f774512009-05-22 14:52:35 -040017170/**
17171 * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
17172 * @phba: Pointer to HBA context object.
17173 *
17174 * This function is called with no lock held. This function processes all
17175 * the received buffers and gives it to upper layers when a received buffer
17176 * indicates that it is the final frame in the sequence. The interrupt
James Smart895427b2017-02-12 13:52:30 -080017177 * service routine processes received buffers at interrupt contexts.
James Smart4f774512009-05-22 14:52:35 -040017178 * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
17179 * appropriate receive function when the final frame in a sequence is received.
17180 **/
James Smart4d9ab992009-10-02 15:16:39 -040017181void
17182lpfc_sli4_handle_received_buffer(struct lpfc_hba *phba,
17183 struct hbq_dmabuf *dmabuf)
James Smart4f774512009-05-22 14:52:35 -040017184{
James Smart4d9ab992009-10-02 15:16:39 -040017185 struct hbq_dmabuf *seq_dmabuf;
James Smart4f774512009-05-22 14:52:35 -040017186 struct fc_frame_header *fc_hdr;
17187 struct lpfc_vport *vport;
17188 uint32_t fcfi;
James Smart939723a2012-05-09 21:19:03 -040017189 uint32_t did;
James Smart4f774512009-05-22 14:52:35 -040017190
James Smart4f774512009-05-22 14:52:35 -040017191 /* Process each received buffer */
James Smart4d9ab992009-10-02 15:16:39 -040017192 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
James Smart2ea259e2017-02-12 13:52:27 -080017193
James Smart4d9ab992009-10-02 15:16:39 -040017194 /* check to see if this a valid type of frame */
17195 if (lpfc_fc_frame_check(phba, fc_hdr)) {
17196 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17197 return;
17198 }
James Smart2ea259e2017-02-12 13:52:27 -080017199
James Smart7851fe22011-07-22 18:36:52 -040017200 if ((bf_get(lpfc_cqe_code,
17201 &dmabuf->cq_event.cqe.rcqe_cmpl) == CQE_CODE_RECEIVE_V1))
17202 fcfi = bf_get(lpfc_rcqe_fcf_id_v1,
17203 &dmabuf->cq_event.cqe.rcqe_cmpl);
17204 else
17205 fcfi = bf_get(lpfc_rcqe_fcf_id,
17206 &dmabuf->cq_event.cqe.rcqe_cmpl);
James Smart939723a2012-05-09 21:19:03 -040017207
James Smartae9e28f2017-05-15 15:20:51 -070017208 if (fc_hdr->fh_r_ctl == 0xF4 && fc_hdr->fh_type == 0xFF) {
17209 vport = phba->pport;
17210 /* Handle MDS Loopback frames */
17211 lpfc_sli4_handle_mds_loopback(vport, dmabuf);
17212 return;
17213 }
17214
James Smart895427b2017-02-12 13:52:30 -080017215 /* d_id this frame is directed to */
17216 did = sli4_did_from_fc_hdr(fc_hdr);
17217
17218 vport = lpfc_fc_frame_to_vport(phba, fc_hdr, fcfi, did);
James Smart939723a2012-05-09 21:19:03 -040017219 if (!vport) {
James Smart4d9ab992009-10-02 15:16:39 -040017220 /* throw out the frame */
17221 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17222 return;
17223 }
James Smart939723a2012-05-09 21:19:03 -040017224
James Smart939723a2012-05-09 21:19:03 -040017225 /* vport is registered unless we rcv a FLOGI directed to Fabric_DID */
17226 if (!(vport->vpi_state & LPFC_VPI_REGISTERED) &&
17227 (did != Fabric_DID)) {
17228 /*
17229 * Throw out the frame if we are not pt2pt.
17230 * The pt2pt protocol allows for discovery frames
17231 * to be received without a registered VPI.
17232 */
17233 if (!(vport->fc_flag & FC_PT2PT) ||
17234 (phba->link_state == LPFC_HBA_READY)) {
17235 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17236 return;
17237 }
17238 }
17239
James Smart6669f9b2009-10-02 15:16:45 -040017240 /* Handle the basic abort sequence (BA_ABTS) event */
17241 if (fc_hdr->fh_r_ctl == FC_RCTL_BA_ABTS) {
17242 lpfc_sli4_handle_unsol_abort(vport, dmabuf);
17243 return;
17244 }
17245
James Smart4d9ab992009-10-02 15:16:39 -040017246 /* Link this frame */
17247 seq_dmabuf = lpfc_fc_frame_add(vport, dmabuf);
17248 if (!seq_dmabuf) {
17249 /* unable to add frame to vport - throw it out */
17250 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17251 return;
17252 }
17253 /* If not last frame in sequence continue processing frames. */
James Smartdef9c7a2009-12-21 17:02:28 -050017254 if (!lpfc_seq_complete(seq_dmabuf))
James Smart4d9ab992009-10-02 15:16:39 -040017255 return;
James Smartdef9c7a2009-12-21 17:02:28 -050017256
James Smart6669f9b2009-10-02 15:16:45 -040017257 /* Send the complete sequence to the upper layer protocol */
17258 lpfc_sli4_send_seq_to_ulp(vport, seq_dmabuf);
James Smart4f774512009-05-22 14:52:35 -040017259}
James Smart6fb120a2009-05-22 14:52:59 -040017260
17261/**
17262 * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
17263 * @phba: pointer to lpfc hba data structure.
17264 *
17265 * This routine is invoked to post rpi header templates to the
17266 * HBA consistent with the SLI-4 interface spec. This routine
James Smart49198b32010-04-06 15:04:33 -040017267 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
17268 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
James Smart6fb120a2009-05-22 14:52:59 -040017269 *
17270 * This routine does not require any locks. It's usage is expected
17271 * to be driver load or reset recovery when the driver is
17272 * sequential.
17273 *
17274 * Return codes
André Goddard Rosaaf901ca2009-11-14 13:09:05 -020017275 * 0 - successful
James Smartd439d282010-09-29 11:18:45 -040017276 * -EIO - The mailbox failed to complete successfully.
James Smart6fb120a2009-05-22 14:52:59 -040017277 * When this error occurs, the driver is not guaranteed
17278 * to have any rpi regions posted to the device and
17279 * must either attempt to repost the regions or take a
17280 * fatal error.
17281 **/
17282int
17283lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *phba)
17284{
17285 struct lpfc_rpi_hdr *rpi_page;
17286 uint32_t rc = 0;
James Smart6d368e52011-05-24 11:44:12 -040017287 uint16_t lrpi = 0;
James Smart6fb120a2009-05-22 14:52:59 -040017288
James Smart6d368e52011-05-24 11:44:12 -040017289 /* SLI4 ports that support extents do not require RPI headers. */
17290 if (!phba->sli4_hba.rpi_hdrs_in_use)
17291 goto exit;
17292 if (phba->sli4_hba.extents_in_use)
17293 return -EIO;
17294
James Smart6fb120a2009-05-22 14:52:59 -040017295 list_for_each_entry(rpi_page, &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
James Smart6d368e52011-05-24 11:44:12 -040017296 /*
17297 * Assign the rpi headers a physical rpi only if the driver
17298 * has not initialized those resources. A port reset only
17299 * needs the headers posted.
17300 */
17301 if (bf_get(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags) !=
17302 LPFC_RPI_RSRC_RDY)
17303 rpi_page->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
17304
James Smart6fb120a2009-05-22 14:52:59 -040017305 rc = lpfc_sli4_post_rpi_hdr(phba, rpi_page);
17306 if (rc != MBX_SUCCESS) {
17307 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17308 "2008 Error %d posting all rpi "
17309 "headers\n", rc);
17310 rc = -EIO;
17311 break;
17312 }
17313 }
17314
James Smart6d368e52011-05-24 11:44:12 -040017315 exit:
17316 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags,
17317 LPFC_RPI_RSRC_RDY);
James Smart6fb120a2009-05-22 14:52:59 -040017318 return rc;
17319}
17320
17321/**
17322 * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
17323 * @phba: pointer to lpfc hba data structure.
17324 * @rpi_page: pointer to the rpi memory region.
17325 *
17326 * This routine is invoked to post a single rpi header to the
17327 * HBA consistent with the SLI-4 interface spec. This memory region
17328 * maps up to 64 rpi context regions.
17329 *
17330 * Return codes
André Goddard Rosaaf901ca2009-11-14 13:09:05 -020017331 * 0 - successful
James Smartd439d282010-09-29 11:18:45 -040017332 * -ENOMEM - No available memory
17333 * -EIO - The mailbox failed to complete successfully.
James Smart6fb120a2009-05-22 14:52:59 -040017334 **/
17335int
17336lpfc_sli4_post_rpi_hdr(struct lpfc_hba *phba, struct lpfc_rpi_hdr *rpi_page)
17337{
17338 LPFC_MBOXQ_t *mboxq;
17339 struct lpfc_mbx_post_hdr_tmpl *hdr_tmpl;
17340 uint32_t rc = 0;
James Smart6fb120a2009-05-22 14:52:59 -040017341 uint32_t shdr_status, shdr_add_status;
17342 union lpfc_sli4_cfg_shdr *shdr;
17343
James Smart6d368e52011-05-24 11:44:12 -040017344 /* SLI4 ports that support extents do not require RPI headers. */
17345 if (!phba->sli4_hba.rpi_hdrs_in_use)
17346 return rc;
17347 if (phba->sli4_hba.extents_in_use)
17348 return -EIO;
17349
James Smart6fb120a2009-05-22 14:52:59 -040017350 /* The port is notified of the header region via a mailbox command. */
17351 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
17352 if (!mboxq) {
17353 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17354 "2001 Unable to allocate memory for issuing "
17355 "SLI_CONFIG_SPECIAL mailbox command\n");
17356 return -ENOMEM;
17357 }
17358
17359 /* Post all rpi memory regions to the port. */
17360 hdr_tmpl = &mboxq->u.mqe.un.hdr_tmpl;
James Smart6fb120a2009-05-22 14:52:59 -040017361 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
17362 LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE,
17363 sizeof(struct lpfc_mbx_post_hdr_tmpl) -
James Smartfedd3b72011-02-16 12:39:24 -050017364 sizeof(struct lpfc_sli4_cfg_mhdr),
17365 LPFC_SLI4_MBX_EMBED);
James Smart6d368e52011-05-24 11:44:12 -040017366
17367
17368 /* Post the physical rpi to the port for this rpi header. */
James Smart6fb120a2009-05-22 14:52:59 -040017369 bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl,
17370 rpi_page->start_rpi);
James Smart6d368e52011-05-24 11:44:12 -040017371 bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt,
17372 hdr_tmpl, rpi_page->page_count);
17373
James Smart6fb120a2009-05-22 14:52:59 -040017374 hdr_tmpl->rpi_paddr_lo = putPaddrLow(rpi_page->dmabuf->phys);
17375 hdr_tmpl->rpi_paddr_hi = putPaddrHigh(rpi_page->dmabuf->phys);
James Smartf1126682009-06-10 17:22:44 -040017376 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
James Smart6fb120a2009-05-22 14:52:59 -040017377 shdr = (union lpfc_sli4_cfg_shdr *) &hdr_tmpl->header.cfg_shdr;
17378 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
17379 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
17380 if (rc != MBX_TIMEOUT)
17381 mempool_free(mboxq, phba->mbox_mem_pool);
17382 if (shdr_status || shdr_add_status || rc) {
17383 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
17384 "2514 POST_RPI_HDR mailbox failed with "
17385 "status x%x add_status x%x, mbx status x%x\n",
17386 shdr_status, shdr_add_status, rc);
17387 rc = -ENXIO;
James Smart845d9e82017-05-15 15:20:38 -070017388 } else {
17389 /*
17390 * The next_rpi stores the next logical module-64 rpi value used
17391 * to post physical rpis in subsequent rpi postings.
17392 */
17393 spin_lock_irq(&phba->hbalock);
17394 phba->sli4_hba.next_rpi = rpi_page->next_rpi;
17395 spin_unlock_irq(&phba->hbalock);
James Smart6fb120a2009-05-22 14:52:59 -040017396 }
17397 return rc;
17398}
17399
17400/**
17401 * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
17402 * @phba: pointer to lpfc hba data structure.
17403 *
17404 * This routine is invoked to post rpi header templates to the
17405 * HBA consistent with the SLI-4 interface spec. This routine
James Smart49198b32010-04-06 15:04:33 -040017406 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
17407 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
James Smart6fb120a2009-05-22 14:52:59 -040017408 *
17409 * Returns
André Goddard Rosaaf901ca2009-11-14 13:09:05 -020017410 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
James Smart6fb120a2009-05-22 14:52:59 -040017411 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
17412 **/
17413int
17414lpfc_sli4_alloc_rpi(struct lpfc_hba *phba)
17415{
James Smart6d368e52011-05-24 11:44:12 -040017416 unsigned long rpi;
17417 uint16_t max_rpi, rpi_limit;
17418 uint16_t rpi_remaining, lrpi = 0;
James Smart6fb120a2009-05-22 14:52:59 -040017419 struct lpfc_rpi_hdr *rpi_hdr;
James Smart4902b382013-10-10 12:20:35 -040017420 unsigned long iflag;
James Smart6fb120a2009-05-22 14:52:59 -040017421
James Smart6fb120a2009-05-22 14:52:59 -040017422 /*
James Smart6d368e52011-05-24 11:44:12 -040017423 * Fetch the next logical rpi. Because this index is logical,
17424 * the driver starts at 0 each time.
James Smart6fb120a2009-05-22 14:52:59 -040017425 */
James Smart4902b382013-10-10 12:20:35 -040017426 spin_lock_irqsave(&phba->hbalock, iflag);
James Smartbe6bb942015-04-07 15:07:22 -040017427 max_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
17428 rpi_limit = phba->sli4_hba.next_rpi;
17429
James Smart6d368e52011-05-24 11:44:12 -040017430 rpi = find_next_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit, 0);
17431 if (rpi >= rpi_limit)
James Smart6fb120a2009-05-22 14:52:59 -040017432 rpi = LPFC_RPI_ALLOC_ERROR;
17433 else {
17434 set_bit(rpi, phba->sli4_hba.rpi_bmask);
17435 phba->sli4_hba.max_cfg_param.rpi_used++;
17436 phba->sli4_hba.rpi_count++;
17437 }
James Smartbe6bb942015-04-07 15:07:22 -040017438 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
17439 "0001 rpi:%x max:%x lim:%x\n",
17440 (int) rpi, max_rpi, rpi_limit);
James Smart6fb120a2009-05-22 14:52:59 -040017441
17442 /*
17443 * Don't try to allocate more rpi header regions if the device limit
James Smart6d368e52011-05-24 11:44:12 -040017444 * has been exhausted.
James Smart6fb120a2009-05-22 14:52:59 -040017445 */
17446 if ((rpi == LPFC_RPI_ALLOC_ERROR) &&
17447 (phba->sli4_hba.rpi_count >= max_rpi)) {
James Smart4902b382013-10-10 12:20:35 -040017448 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart6fb120a2009-05-22 14:52:59 -040017449 return rpi;
17450 }
17451
17452 /*
James Smart6d368e52011-05-24 11:44:12 -040017453 * RPI header postings are not required for SLI4 ports capable of
17454 * extents.
17455 */
17456 if (!phba->sli4_hba.rpi_hdrs_in_use) {
James Smart4902b382013-10-10 12:20:35 -040017457 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart6d368e52011-05-24 11:44:12 -040017458 return rpi;
17459 }
17460
17461 /*
James Smart6fb120a2009-05-22 14:52:59 -040017462 * If the driver is running low on rpi resources, allocate another
17463 * page now. Note that the next_rpi value is used because
17464 * it represents how many are actually in use whereas max_rpi notes
17465 * how many are supported max by the device.
17466 */
James Smart6d368e52011-05-24 11:44:12 -040017467 rpi_remaining = phba->sli4_hba.next_rpi - phba->sli4_hba.rpi_count;
James Smart4902b382013-10-10 12:20:35 -040017468 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart6fb120a2009-05-22 14:52:59 -040017469 if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) {
17470 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
17471 if (!rpi_hdr) {
17472 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17473 "2002 Error Could not grow rpi "
17474 "count\n");
17475 } else {
James Smart6d368e52011-05-24 11:44:12 -040017476 lrpi = rpi_hdr->start_rpi;
17477 rpi_hdr->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
James Smart6fb120a2009-05-22 14:52:59 -040017478 lpfc_sli4_post_rpi_hdr(phba, rpi_hdr);
17479 }
17480 }
17481
17482 return rpi;
17483}
17484
17485/**
17486 * lpfc_sli4_free_rpi - Release an rpi for reuse.
17487 * @phba: pointer to lpfc hba data structure.
17488 *
17489 * This routine is invoked to release an rpi to the pool of
17490 * available rpis maintained by the driver.
17491 **/
Rashika Kheria5d8b8162014-09-03 12:55:04 -040017492static void
James Smartd7c47992010-06-08 18:31:54 -040017493__lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
17494{
17495 if (test_and_clear_bit(rpi, phba->sli4_hba.rpi_bmask)) {
17496 phba->sli4_hba.rpi_count--;
17497 phba->sli4_hba.max_cfg_param.rpi_used--;
17498 }
17499}
17500
17501/**
17502 * lpfc_sli4_free_rpi - Release an rpi for reuse.
17503 * @phba: pointer to lpfc hba data structure.
17504 *
17505 * This routine is invoked to release an rpi to the pool of
17506 * available rpis maintained by the driver.
17507 **/
17508void
James Smart6fb120a2009-05-22 14:52:59 -040017509lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
17510{
17511 spin_lock_irq(&phba->hbalock);
James Smartd7c47992010-06-08 18:31:54 -040017512 __lpfc_sli4_free_rpi(phba, rpi);
James Smart6fb120a2009-05-22 14:52:59 -040017513 spin_unlock_irq(&phba->hbalock);
17514}
17515
17516/**
17517 * lpfc_sli4_remove_rpis - Remove the rpi bitmask region
17518 * @phba: pointer to lpfc hba data structure.
17519 *
17520 * This routine is invoked to remove the memory region that
17521 * provided rpi via a bitmask.
17522 **/
17523void
17524lpfc_sli4_remove_rpis(struct lpfc_hba *phba)
17525{
17526 kfree(phba->sli4_hba.rpi_bmask);
James Smart6d368e52011-05-24 11:44:12 -040017527 kfree(phba->sli4_hba.rpi_ids);
17528 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
James Smart6fb120a2009-05-22 14:52:59 -040017529}
17530
17531/**
17532 * lpfc_sli4_resume_rpi - Remove the rpi bitmask region
17533 * @phba: pointer to lpfc hba data structure.
17534 *
17535 * This routine is invoked to remove the memory region that
17536 * provided rpi via a bitmask.
17537 **/
17538int
James Smart6b5151f2012-01-18 16:24:06 -050017539lpfc_sli4_resume_rpi(struct lpfc_nodelist *ndlp,
17540 void (*cmpl)(struct lpfc_hba *, LPFC_MBOXQ_t *), void *arg)
James Smart6fb120a2009-05-22 14:52:59 -040017541{
17542 LPFC_MBOXQ_t *mboxq;
17543 struct lpfc_hba *phba = ndlp->phba;
17544 int rc;
17545
17546 /* The port is notified of the header region via a mailbox command. */
17547 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
17548 if (!mboxq)
17549 return -ENOMEM;
17550
17551 /* Post all rpi memory regions to the port. */
17552 lpfc_resume_rpi(mboxq, ndlp);
James Smart6b5151f2012-01-18 16:24:06 -050017553 if (cmpl) {
17554 mboxq->mbox_cmpl = cmpl;
17555 mboxq->context1 = arg;
17556 mboxq->context2 = ndlp;
James Smart72859902012-01-18 16:25:38 -050017557 } else
17558 mboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
James Smart6b5151f2012-01-18 16:24:06 -050017559 mboxq->vport = ndlp->vport;
James Smart6fb120a2009-05-22 14:52:59 -040017560 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
17561 if (rc == MBX_NOT_FINISHED) {
17562 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17563 "2010 Resume RPI Mailbox failed "
17564 "status %d, mbxStatus x%x\n", rc,
17565 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
17566 mempool_free(mboxq, phba->mbox_mem_pool);
17567 return -EIO;
17568 }
17569 return 0;
17570}
17571
17572/**
17573 * lpfc_sli4_init_vpi - Initialize a vpi with the port
James Smart76a95d72010-11-20 23:11:48 -050017574 * @vport: Pointer to the vport for which the vpi is being initialized
James Smart6fb120a2009-05-22 14:52:59 -040017575 *
James Smart76a95d72010-11-20 23:11:48 -050017576 * This routine is invoked to activate a vpi with the port.
James Smart6fb120a2009-05-22 14:52:59 -040017577 *
17578 * Returns:
17579 * 0 success
17580 * -Evalue otherwise
17581 **/
17582int
James Smart76a95d72010-11-20 23:11:48 -050017583lpfc_sli4_init_vpi(struct lpfc_vport *vport)
James Smart6fb120a2009-05-22 14:52:59 -040017584{
17585 LPFC_MBOXQ_t *mboxq;
17586 int rc = 0;
James Smart6a9c52c2009-10-02 15:16:51 -040017587 int retval = MBX_SUCCESS;
James Smart6fb120a2009-05-22 14:52:59 -040017588 uint32_t mbox_tmo;
James Smart76a95d72010-11-20 23:11:48 -050017589 struct lpfc_hba *phba = vport->phba;
James Smart6fb120a2009-05-22 14:52:59 -040017590 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
17591 if (!mboxq)
17592 return -ENOMEM;
James Smart76a95d72010-11-20 23:11:48 -050017593 lpfc_init_vpi(phba, mboxq, vport->vpi);
James Smarta183a152011-10-10 21:32:43 -040017594 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
James Smart6fb120a2009-05-22 14:52:59 -040017595 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
James Smart6fb120a2009-05-22 14:52:59 -040017596 if (rc != MBX_SUCCESS) {
James Smart76a95d72010-11-20 23:11:48 -050017597 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI,
James Smart6fb120a2009-05-22 14:52:59 -040017598 "2022 INIT VPI Mailbox failed "
17599 "status %d, mbxStatus x%x\n", rc,
17600 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
James Smart6a9c52c2009-10-02 15:16:51 -040017601 retval = -EIO;
James Smart6fb120a2009-05-22 14:52:59 -040017602 }
James Smart6a9c52c2009-10-02 15:16:51 -040017603 if (rc != MBX_TIMEOUT)
James Smart76a95d72010-11-20 23:11:48 -050017604 mempool_free(mboxq, vport->phba->mbox_mem_pool);
James Smart6a9c52c2009-10-02 15:16:51 -040017605
17606 return retval;
James Smart6fb120a2009-05-22 14:52:59 -040017607}
17608
17609/**
17610 * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
17611 * @phba: pointer to lpfc hba data structure.
17612 * @mboxq: Pointer to mailbox object.
17613 *
17614 * This routine is invoked to manually add a single FCF record. The caller
17615 * must pass a completely initialized FCF_Record. This routine takes
17616 * care of the nonembedded mailbox operations.
17617 **/
17618static void
17619lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
17620{
17621 void *virt_addr;
17622 union lpfc_sli4_cfg_shdr *shdr;
17623 uint32_t shdr_status, shdr_add_status;
17624
17625 virt_addr = mboxq->sge_array->addr[0];
17626 /* The IOCTL status is embedded in the mailbox subheader. */
17627 shdr = (union lpfc_sli4_cfg_shdr *) virt_addr;
17628 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
17629 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
17630
17631 if ((shdr_status || shdr_add_status) &&
17632 (shdr_status != STATUS_FCF_IN_USE))
17633 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
17634 "2558 ADD_FCF_RECORD mailbox failed with "
17635 "status x%x add_status x%x\n",
17636 shdr_status, shdr_add_status);
17637
17638 lpfc_sli4_mbox_cmd_free(phba, mboxq);
17639}
17640
17641/**
17642 * lpfc_sli4_add_fcf_record - Manually add an FCF Record.
17643 * @phba: pointer to lpfc hba data structure.
17644 * @fcf_record: pointer to the initialized fcf record to add.
17645 *
17646 * This routine is invoked to manually add a single FCF record. The caller
17647 * must pass a completely initialized FCF_Record. This routine takes
17648 * care of the nonembedded mailbox operations.
17649 **/
17650int
17651lpfc_sli4_add_fcf_record(struct lpfc_hba *phba, struct fcf_record *fcf_record)
17652{
17653 int rc = 0;
17654 LPFC_MBOXQ_t *mboxq;
17655 uint8_t *bytep;
17656 void *virt_addr;
James Smart6fb120a2009-05-22 14:52:59 -040017657 struct lpfc_mbx_sge sge;
17658 uint32_t alloc_len, req_len;
17659 uint32_t fcfindex;
17660
17661 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
17662 if (!mboxq) {
17663 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
17664 "2009 Failed to allocate mbox for ADD_FCF cmd\n");
17665 return -ENOMEM;
17666 }
17667
17668 req_len = sizeof(struct fcf_record) + sizeof(union lpfc_sli4_cfg_shdr) +
17669 sizeof(uint32_t);
17670
17671 /* Allocate DMA memory and set up the non-embedded mailbox command */
17672 alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
17673 LPFC_MBOX_OPCODE_FCOE_ADD_FCF,
17674 req_len, LPFC_SLI4_MBX_NEMBED);
17675 if (alloc_len < req_len) {
17676 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
17677 "2523 Allocated DMA memory size (x%x) is "
17678 "less than the requested DMA memory "
17679 "size (x%x)\n", alloc_len, req_len);
17680 lpfc_sli4_mbox_cmd_free(phba, mboxq);
17681 return -ENOMEM;
17682 }
17683
17684 /*
17685 * Get the first SGE entry from the non-embedded DMA memory. This
17686 * routine only uses a single SGE.
17687 */
17688 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
James Smart6fb120a2009-05-22 14:52:59 -040017689 virt_addr = mboxq->sge_array->addr[0];
17690 /*
17691 * Configure the FCF record for FCFI 0. This is the driver's
17692 * hardcoded default and gets used in nonFIP mode.
17693 */
17694 fcfindex = bf_get(lpfc_fcf_record_fcf_index, fcf_record);
17695 bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
17696 lpfc_sli_pcimem_bcopy(&fcfindex, bytep, sizeof(uint32_t));
17697
17698 /*
17699 * Copy the fcf_index and the FCF Record Data. The data starts after
17700 * the FCoE header plus word10. The data copy needs to be endian
17701 * correct.
17702 */
17703 bytep += sizeof(uint32_t);
17704 lpfc_sli_pcimem_bcopy(fcf_record, bytep, sizeof(struct fcf_record));
17705 mboxq->vport = phba->pport;
17706 mboxq->mbox_cmpl = lpfc_mbx_cmpl_add_fcf_record;
17707 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
17708 if (rc == MBX_NOT_FINISHED) {
17709 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
17710 "2515 ADD_FCF_RECORD mailbox failed with "
17711 "status 0x%x\n", rc);
17712 lpfc_sli4_mbox_cmd_free(phba, mboxq);
17713 rc = -EIO;
17714 } else
17715 rc = 0;
17716
17717 return rc;
17718}
17719
17720/**
17721 * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
17722 * @phba: pointer to lpfc hba data structure.
17723 * @fcf_record: pointer to the fcf record to write the default data.
17724 * @fcf_index: FCF table entry index.
17725 *
17726 * This routine is invoked to build the driver's default FCF record. The
17727 * values used are hardcoded. This routine handles memory initialization.
17728 *
17729 **/
17730void
17731lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba,
17732 struct fcf_record *fcf_record,
17733 uint16_t fcf_index)
17734{
17735 memset(fcf_record, 0, sizeof(struct fcf_record));
17736 fcf_record->max_rcv_size = LPFC_FCOE_MAX_RCV_SIZE;
17737 fcf_record->fka_adv_period = LPFC_FCOE_FKA_ADV_PER;
17738 fcf_record->fip_priority = LPFC_FCOE_FIP_PRIORITY;
17739 bf_set(lpfc_fcf_record_mac_0, fcf_record, phba->fc_map[0]);
17740 bf_set(lpfc_fcf_record_mac_1, fcf_record, phba->fc_map[1]);
17741 bf_set(lpfc_fcf_record_mac_2, fcf_record, phba->fc_map[2]);
17742 bf_set(lpfc_fcf_record_mac_3, fcf_record, LPFC_FCOE_FCF_MAC3);
17743 bf_set(lpfc_fcf_record_mac_4, fcf_record, LPFC_FCOE_FCF_MAC4);
17744 bf_set(lpfc_fcf_record_mac_5, fcf_record, LPFC_FCOE_FCF_MAC5);
17745 bf_set(lpfc_fcf_record_fc_map_0, fcf_record, phba->fc_map[0]);
17746 bf_set(lpfc_fcf_record_fc_map_1, fcf_record, phba->fc_map[1]);
17747 bf_set(lpfc_fcf_record_fc_map_2, fcf_record, phba->fc_map[2]);
17748 bf_set(lpfc_fcf_record_fcf_valid, fcf_record, 1);
James Smart0c287582009-06-10 17:22:56 -040017749 bf_set(lpfc_fcf_record_fcf_avail, fcf_record, 1);
James Smart6fb120a2009-05-22 14:52:59 -040017750 bf_set(lpfc_fcf_record_fcf_index, fcf_record, fcf_index);
17751 bf_set(lpfc_fcf_record_mac_addr_prov, fcf_record,
17752 LPFC_FCF_FPMA | LPFC_FCF_SPMA);
17753 /* Set the VLAN bit map */
17754 if (phba->valid_vlan) {
17755 fcf_record->vlan_bitmap[phba->vlan_id / 8]
17756 = 1 << (phba->vlan_id % 8);
17757 }
17758}
17759
17760/**
James Smart0c9ab6f2010-02-26 14:15:57 -050017761 * lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan.
James Smart6fb120a2009-05-22 14:52:59 -040017762 * @phba: pointer to lpfc hba data structure.
17763 * @fcf_index: FCF table entry offset.
17764 *
James Smart0c9ab6f2010-02-26 14:15:57 -050017765 * This routine is invoked to scan the entire FCF table by reading FCF
17766 * record and processing it one at a time starting from the @fcf_index
17767 * for initial FCF discovery or fast FCF failover rediscovery.
17768 *
Lucas De Marchi25985ed2011-03-30 22:57:33 -030017769 * Return 0 if the mailbox command is submitted successfully, none 0
James Smart0c9ab6f2010-02-26 14:15:57 -050017770 * otherwise.
James Smart6fb120a2009-05-22 14:52:59 -040017771 **/
17772int
James Smart0c9ab6f2010-02-26 14:15:57 -050017773lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
James Smart6fb120a2009-05-22 14:52:59 -040017774{
17775 int rc = 0, error;
17776 LPFC_MBOXQ_t *mboxq;
James Smart6fb120a2009-05-22 14:52:59 -040017777
James Smart32b97932009-07-19 10:01:21 -040017778 phba->fcoe_eventtag_at_fcf_scan = phba->fcoe_eventtag;
James Smart80c17842012-03-01 22:35:45 -050017779 phba->fcoe_cvl_eventtag_attn = phba->fcoe_cvl_eventtag;
James Smart6fb120a2009-05-22 14:52:59 -040017780 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
17781 if (!mboxq) {
17782 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
17783 "2000 Failed to allocate mbox for "
17784 "READ_FCF cmd\n");
James Smart4d9ab992009-10-02 15:16:39 -040017785 error = -ENOMEM;
James Smart0c9ab6f2010-02-26 14:15:57 -050017786 goto fail_fcf_scan;
James Smart6fb120a2009-05-22 14:52:59 -040017787 }
James Smartecfd03c2010-02-12 14:41:27 -050017788 /* Construct the read FCF record mailbox command */
James Smart0c9ab6f2010-02-26 14:15:57 -050017789 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
James Smartecfd03c2010-02-12 14:41:27 -050017790 if (rc) {
17791 error = -EINVAL;
James Smart0c9ab6f2010-02-26 14:15:57 -050017792 goto fail_fcf_scan;
James Smart6fb120a2009-05-22 14:52:59 -040017793 }
James Smartecfd03c2010-02-12 14:41:27 -050017794 /* Issue the mailbox command asynchronously */
James Smart6fb120a2009-05-22 14:52:59 -040017795 mboxq->vport = phba->pport;
James Smart0c9ab6f2010-02-26 14:15:57 -050017796 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_scan_read_fcf_rec;
James Smarta93ff372010-10-22 11:06:08 -040017797
17798 spin_lock_irq(&phba->hbalock);
17799 phba->hba_flag |= FCF_TS_INPROG;
17800 spin_unlock_irq(&phba->hbalock);
17801
James Smart6fb120a2009-05-22 14:52:59 -040017802 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
James Smartecfd03c2010-02-12 14:41:27 -050017803 if (rc == MBX_NOT_FINISHED)
James Smart6fb120a2009-05-22 14:52:59 -040017804 error = -EIO;
James Smartecfd03c2010-02-12 14:41:27 -050017805 else {
James Smart38b92ef2010-08-04 16:11:39 -040017806 /* Reset eligible FCF count for new scan */
17807 if (fcf_index == LPFC_FCOE_FCF_GET_FIRST)
James Smart999d8132010-03-15 11:24:56 -040017808 phba->fcf.eligible_fcf_cnt = 0;
James Smart6fb120a2009-05-22 14:52:59 -040017809 error = 0;
James Smart32b97932009-07-19 10:01:21 -040017810 }
James Smart0c9ab6f2010-02-26 14:15:57 -050017811fail_fcf_scan:
James Smart4d9ab992009-10-02 15:16:39 -040017812 if (error) {
17813 if (mboxq)
17814 lpfc_sli4_mbox_cmd_free(phba, mboxq);
James Smarta93ff372010-10-22 11:06:08 -040017815 /* FCF scan failed, clear FCF_TS_INPROG flag */
James Smart4d9ab992009-10-02 15:16:39 -040017816 spin_lock_irq(&phba->hbalock);
James Smarta93ff372010-10-22 11:06:08 -040017817 phba->hba_flag &= ~FCF_TS_INPROG;
James Smart4d9ab992009-10-02 15:16:39 -040017818 spin_unlock_irq(&phba->hbalock);
17819 }
James Smart6fb120a2009-05-22 14:52:59 -040017820 return error;
17821}
James Smarta0c87cb2009-07-19 10:01:10 -040017822
17823/**
James Smarta93ff372010-10-22 11:06:08 -040017824 * lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for roundrobin fcf.
James Smart0c9ab6f2010-02-26 14:15:57 -050017825 * @phba: pointer to lpfc hba data structure.
17826 * @fcf_index: FCF table entry offset.
17827 *
17828 * This routine is invoked to read an FCF record indicated by @fcf_index
James Smarta93ff372010-10-22 11:06:08 -040017829 * and to use it for FLOGI roundrobin FCF failover.
James Smart0c9ab6f2010-02-26 14:15:57 -050017830 *
Lucas De Marchi25985ed2011-03-30 22:57:33 -030017831 * Return 0 if the mailbox command is submitted successfully, none 0
James Smart0c9ab6f2010-02-26 14:15:57 -050017832 * otherwise.
17833 **/
17834int
17835lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
17836{
17837 int rc = 0, error;
17838 LPFC_MBOXQ_t *mboxq;
17839
17840 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
17841 if (!mboxq) {
17842 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
17843 "2763 Failed to allocate mbox for "
17844 "READ_FCF cmd\n");
17845 error = -ENOMEM;
17846 goto fail_fcf_read;
17847 }
17848 /* Construct the read FCF record mailbox command */
17849 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
17850 if (rc) {
17851 error = -EINVAL;
17852 goto fail_fcf_read;
17853 }
17854 /* Issue the mailbox command asynchronously */
17855 mboxq->vport = phba->pport;
17856 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_rr_read_fcf_rec;
17857 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
17858 if (rc == MBX_NOT_FINISHED)
17859 error = -EIO;
17860 else
17861 error = 0;
17862
17863fail_fcf_read:
17864 if (error && mboxq)
17865 lpfc_sli4_mbox_cmd_free(phba, mboxq);
17866 return error;
17867}
17868
17869/**
17870 * lpfc_sli4_read_fcf_rec - Read hba fcf record for update eligible fcf bmask.
17871 * @phba: pointer to lpfc hba data structure.
17872 * @fcf_index: FCF table entry offset.
17873 *
17874 * This routine is invoked to read an FCF record indicated by @fcf_index to
James Smarta93ff372010-10-22 11:06:08 -040017875 * determine whether it's eligible for FLOGI roundrobin failover list.
James Smart0c9ab6f2010-02-26 14:15:57 -050017876 *
Lucas De Marchi25985ed2011-03-30 22:57:33 -030017877 * Return 0 if the mailbox command is submitted successfully, none 0
James Smart0c9ab6f2010-02-26 14:15:57 -050017878 * otherwise.
17879 **/
17880int
17881lpfc_sli4_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
17882{
17883 int rc = 0, error;
17884 LPFC_MBOXQ_t *mboxq;
17885
17886 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
17887 if (!mboxq) {
17888 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
17889 "2758 Failed to allocate mbox for "
17890 "READ_FCF cmd\n");
17891 error = -ENOMEM;
17892 goto fail_fcf_read;
17893 }
17894 /* Construct the read FCF record mailbox command */
17895 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
17896 if (rc) {
17897 error = -EINVAL;
17898 goto fail_fcf_read;
17899 }
17900 /* Issue the mailbox command asynchronously */
17901 mboxq->vport = phba->pport;
17902 mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_rec;
17903 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
17904 if (rc == MBX_NOT_FINISHED)
17905 error = -EIO;
17906 else
17907 error = 0;
17908
17909fail_fcf_read:
17910 if (error && mboxq)
17911 lpfc_sli4_mbox_cmd_free(phba, mboxq);
17912 return error;
17913}
17914
17915/**
James Smartf5cb5302015-12-16 18:11:52 -050017916 * lpfc_check_next_fcf_pri_level
James Smart7d791df2011-07-22 18:37:52 -040017917 * phba pointer to the lpfc_hba struct for this port.
17918 * This routine is called from the lpfc_sli4_fcf_rr_next_index_get
17919 * routine when the rr_bmask is empty. The FCF indecies are put into the
17920 * rr_bmask based on their priority level. Starting from the highest priority
17921 * to the lowest. The most likely FCF candidate will be in the highest
17922 * priority group. When this routine is called it searches the fcf_pri list for
17923 * next lowest priority group and repopulates the rr_bmask with only those
17924 * fcf_indexes.
17925 * returns:
17926 * 1=success 0=failure
17927 **/
Rashika Kheria5d8b8162014-09-03 12:55:04 -040017928static int
James Smart7d791df2011-07-22 18:37:52 -040017929lpfc_check_next_fcf_pri_level(struct lpfc_hba *phba)
17930{
17931 uint16_t next_fcf_pri;
17932 uint16_t last_index;
17933 struct lpfc_fcf_pri *fcf_pri;
17934 int rc;
17935 int ret = 0;
17936
17937 last_index = find_first_bit(phba->fcf.fcf_rr_bmask,
17938 LPFC_SLI4_FCF_TBL_INDX_MAX);
17939 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
17940 "3060 Last IDX %d\n", last_index);
James Smart25626692013-03-01 16:36:54 -050017941
17942 /* Verify the priority list has 2 or more entries */
17943 spin_lock_irq(&phba->hbalock);
17944 if (list_empty(&phba->fcf.fcf_pri_list) ||
17945 list_is_singular(&phba->fcf.fcf_pri_list)) {
17946 spin_unlock_irq(&phba->hbalock);
James Smart7d791df2011-07-22 18:37:52 -040017947 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
17948 "3061 Last IDX %d\n", last_index);
17949 return 0; /* Empty rr list */
17950 }
James Smart25626692013-03-01 16:36:54 -050017951 spin_unlock_irq(&phba->hbalock);
17952
James Smart7d791df2011-07-22 18:37:52 -040017953 next_fcf_pri = 0;
17954 /*
17955 * Clear the rr_bmask and set all of the bits that are at this
17956 * priority.
17957 */
17958 memset(phba->fcf.fcf_rr_bmask, 0,
17959 sizeof(*phba->fcf.fcf_rr_bmask));
17960 spin_lock_irq(&phba->hbalock);
17961 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
17962 if (fcf_pri->fcf_rec.flag & LPFC_FCF_FLOGI_FAILED)
17963 continue;
17964 /*
17965 * the 1st priority that has not FLOGI failed
17966 * will be the highest.
17967 */
17968 if (!next_fcf_pri)
17969 next_fcf_pri = fcf_pri->fcf_rec.priority;
17970 spin_unlock_irq(&phba->hbalock);
17971 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
17972 rc = lpfc_sli4_fcf_rr_index_set(phba,
17973 fcf_pri->fcf_rec.fcf_index);
17974 if (rc)
17975 return 0;
17976 }
17977 spin_lock_irq(&phba->hbalock);
17978 }
17979 /*
17980 * if next_fcf_pri was not set above and the list is not empty then
17981 * we have failed flogis on all of them. So reset flogi failed
Anatol Pomozov4907cb72012-09-01 10:31:09 -070017982 * and start at the beginning.
James Smart7d791df2011-07-22 18:37:52 -040017983 */
17984 if (!next_fcf_pri && !list_empty(&phba->fcf.fcf_pri_list)) {
17985 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
17986 fcf_pri->fcf_rec.flag &= ~LPFC_FCF_FLOGI_FAILED;
17987 /*
17988 * the 1st priority that has not FLOGI failed
17989 * will be the highest.
17990 */
17991 if (!next_fcf_pri)
17992 next_fcf_pri = fcf_pri->fcf_rec.priority;
17993 spin_unlock_irq(&phba->hbalock);
17994 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
17995 rc = lpfc_sli4_fcf_rr_index_set(phba,
17996 fcf_pri->fcf_rec.fcf_index);
17997 if (rc)
17998 return 0;
17999 }
18000 spin_lock_irq(&phba->hbalock);
18001 }
18002 } else
18003 ret = 1;
18004 spin_unlock_irq(&phba->hbalock);
18005
18006 return ret;
18007}
18008/**
James Smart0c9ab6f2010-02-26 14:15:57 -050018009 * lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index
18010 * @phba: pointer to lpfc hba data structure.
18011 *
18012 * This routine is to get the next eligible FCF record index in a round
18013 * robin fashion. If the next eligible FCF record index equals to the
James Smarta93ff372010-10-22 11:06:08 -040018014 * initial roundrobin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF)
James Smart0c9ab6f2010-02-26 14:15:57 -050018015 * shall be returned, otherwise, the next eligible FCF record's index
18016 * shall be returned.
18017 **/
18018uint16_t
18019lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba *phba)
18020{
18021 uint16_t next_fcf_index;
18022
James Smart421c6622013-01-03 15:44:16 -050018023initial_priority:
James Smart3804dc82010-07-14 15:31:37 -040018024 /* Search start from next bit of currently registered FCF index */
James Smart421c6622013-01-03 15:44:16 -050018025 next_fcf_index = phba->fcf.current_rec.fcf_indx;
18026
James Smart7d791df2011-07-22 18:37:52 -040018027next_priority:
James Smart421c6622013-01-03 15:44:16 -050018028 /* Determine the next fcf index to check */
18029 next_fcf_index = (next_fcf_index + 1) % LPFC_SLI4_FCF_TBL_INDX_MAX;
James Smart0c9ab6f2010-02-26 14:15:57 -050018030 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
18031 LPFC_SLI4_FCF_TBL_INDX_MAX,
James Smart3804dc82010-07-14 15:31:37 -040018032 next_fcf_index);
18033
James Smart0c9ab6f2010-02-26 14:15:57 -050018034 /* Wrap around condition on phba->fcf.fcf_rr_bmask */
James Smart7d791df2011-07-22 18:37:52 -040018035 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
18036 /*
18037 * If we have wrapped then we need to clear the bits that
18038 * have been tested so that we can detect when we should
18039 * change the priority level.
18040 */
James Smart0c9ab6f2010-02-26 14:15:57 -050018041 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
18042 LPFC_SLI4_FCF_TBL_INDX_MAX, 0);
James Smart7d791df2011-07-22 18:37:52 -040018043 }
18044
James Smart0c9ab6f2010-02-26 14:15:57 -050018045
James Smart3804dc82010-07-14 15:31:37 -040018046 /* Check roundrobin failover list empty condition */
James Smart7d791df2011-07-22 18:37:52 -040018047 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX ||
18048 next_fcf_index == phba->fcf.current_rec.fcf_indx) {
18049 /*
18050 * If next fcf index is not found check if there are lower
18051 * Priority level fcf's in the fcf_priority list.
18052 * Set up the rr_bmask with all of the avaiable fcf bits
18053 * at that level and continue the selection process.
18054 */
18055 if (lpfc_check_next_fcf_pri_level(phba))
James Smart421c6622013-01-03 15:44:16 -050018056 goto initial_priority;
James Smart3804dc82010-07-14 15:31:37 -040018057 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
18058 "2844 No roundrobin failover FCF available\n");
James Smart7d791df2011-07-22 18:37:52 -040018059 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX)
18060 return LPFC_FCOE_FCF_NEXT_NONE;
18061 else {
18062 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
18063 "3063 Only FCF available idx %d, flag %x\n",
18064 next_fcf_index,
18065 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag);
18066 return next_fcf_index;
18067 }
James Smart3804dc82010-07-14 15:31:37 -040018068 }
18069
James Smart7d791df2011-07-22 18:37:52 -040018070 if (next_fcf_index < LPFC_SLI4_FCF_TBL_INDX_MAX &&
18071 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag &
James Smartf5cb5302015-12-16 18:11:52 -050018072 LPFC_FCF_FLOGI_FAILED) {
18073 if (list_is_singular(&phba->fcf.fcf_pri_list))
18074 return LPFC_FCOE_FCF_NEXT_NONE;
18075
James Smart7d791df2011-07-22 18:37:52 -040018076 goto next_priority;
James Smartf5cb5302015-12-16 18:11:52 -050018077 }
James Smart7d791df2011-07-22 18:37:52 -040018078
James Smart3804dc82010-07-14 15:31:37 -040018079 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
James Smarta93ff372010-10-22 11:06:08 -040018080 "2845 Get next roundrobin failover FCF (x%x)\n",
18081 next_fcf_index);
18082
James Smart0c9ab6f2010-02-26 14:15:57 -050018083 return next_fcf_index;
18084}
18085
18086/**
18087 * lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index
18088 * @phba: pointer to lpfc hba data structure.
18089 *
18090 * This routine sets the FCF record index in to the eligible bmask for
James Smarta93ff372010-10-22 11:06:08 -040018091 * roundrobin failover search. It checks to make sure that the index
James Smart0c9ab6f2010-02-26 14:15:57 -050018092 * does not go beyond the range of the driver allocated bmask dimension
18093 * before setting the bit.
18094 *
18095 * Returns 0 if the index bit successfully set, otherwise, it returns
18096 * -EINVAL.
18097 **/
18098int
18099lpfc_sli4_fcf_rr_index_set(struct lpfc_hba *phba, uint16_t fcf_index)
18100{
18101 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
18102 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
James Smarta93ff372010-10-22 11:06:08 -040018103 "2610 FCF (x%x) reached driver's book "
18104 "keeping dimension:x%x\n",
James Smart0c9ab6f2010-02-26 14:15:57 -050018105 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
18106 return -EINVAL;
18107 }
18108 /* Set the eligible FCF record index bmask */
18109 set_bit(fcf_index, phba->fcf.fcf_rr_bmask);
18110
James Smart3804dc82010-07-14 15:31:37 -040018111 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
James Smarta93ff372010-10-22 11:06:08 -040018112 "2790 Set FCF (x%x) to roundrobin FCF failover "
James Smart3804dc82010-07-14 15:31:37 -040018113 "bmask\n", fcf_index);
18114
James Smart0c9ab6f2010-02-26 14:15:57 -050018115 return 0;
18116}
18117
18118/**
James Smart3804dc82010-07-14 15:31:37 -040018119 * lpfc_sli4_fcf_rr_index_clear - Clear bmask from eligible fcf record index
James Smart0c9ab6f2010-02-26 14:15:57 -050018120 * @phba: pointer to lpfc hba data structure.
18121 *
18122 * This routine clears the FCF record index from the eligible bmask for
James Smarta93ff372010-10-22 11:06:08 -040018123 * roundrobin failover search. It checks to make sure that the index
James Smart0c9ab6f2010-02-26 14:15:57 -050018124 * does not go beyond the range of the driver allocated bmask dimension
18125 * before clearing the bit.
18126 **/
18127void
18128lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba *phba, uint16_t fcf_index)
18129{
James Smart9a803a72013-09-06 12:17:56 -040018130 struct lpfc_fcf_pri *fcf_pri, *fcf_pri_next;
James Smart0c9ab6f2010-02-26 14:15:57 -050018131 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
18132 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
James Smarta93ff372010-10-22 11:06:08 -040018133 "2762 FCF (x%x) reached driver's book "
18134 "keeping dimension:x%x\n",
James Smart0c9ab6f2010-02-26 14:15:57 -050018135 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
18136 return;
18137 }
18138 /* Clear the eligible FCF record index bmask */
James Smart7d791df2011-07-22 18:37:52 -040018139 spin_lock_irq(&phba->hbalock);
James Smart9a803a72013-09-06 12:17:56 -040018140 list_for_each_entry_safe(fcf_pri, fcf_pri_next, &phba->fcf.fcf_pri_list,
18141 list) {
James Smart7d791df2011-07-22 18:37:52 -040018142 if (fcf_pri->fcf_rec.fcf_index == fcf_index) {
18143 list_del_init(&fcf_pri->list);
18144 break;
18145 }
18146 }
18147 spin_unlock_irq(&phba->hbalock);
James Smart0c9ab6f2010-02-26 14:15:57 -050018148 clear_bit(fcf_index, phba->fcf.fcf_rr_bmask);
James Smart3804dc82010-07-14 15:31:37 -040018149
18150 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
James Smarta93ff372010-10-22 11:06:08 -040018151 "2791 Clear FCF (x%x) from roundrobin failover "
James Smart3804dc82010-07-14 15:31:37 -040018152 "bmask\n", fcf_index);
James Smart0c9ab6f2010-02-26 14:15:57 -050018153}
18154
18155/**
James Smartecfd03c2010-02-12 14:41:27 -050018156 * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
18157 * @phba: pointer to lpfc hba data structure.
18158 *
18159 * This routine is the completion routine for the rediscover FCF table mailbox
18160 * command. If the mailbox command returned failure, it will try to stop the
18161 * FCF rediscover wait timer.
18162 **/
Rashika Kheria5d8b8162014-09-03 12:55:04 -040018163static void
James Smartecfd03c2010-02-12 14:41:27 -050018164lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
18165{
18166 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
18167 uint32_t shdr_status, shdr_add_status;
18168
18169 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
18170
18171 shdr_status = bf_get(lpfc_mbox_hdr_status,
18172 &redisc_fcf->header.cfg_shdr.response);
18173 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
18174 &redisc_fcf->header.cfg_shdr.response);
18175 if (shdr_status || shdr_add_status) {
James Smart0c9ab6f2010-02-26 14:15:57 -050018176 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
James Smartecfd03c2010-02-12 14:41:27 -050018177 "2746 Requesting for FCF rediscovery failed "
18178 "status x%x add_status x%x\n",
18179 shdr_status, shdr_add_status);
James Smart0c9ab6f2010-02-26 14:15:57 -050018180 if (phba->fcf.fcf_flag & FCF_ACVL_DISC) {
James Smartfc2b9892010-02-26 14:15:29 -050018181 spin_lock_irq(&phba->hbalock);
James Smart0c9ab6f2010-02-26 14:15:57 -050018182 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
James Smartfc2b9892010-02-26 14:15:29 -050018183 spin_unlock_irq(&phba->hbalock);
18184 /*
18185 * CVL event triggered FCF rediscover request failed,
18186 * last resort to re-try current registered FCF entry.
18187 */
18188 lpfc_retry_pport_discovery(phba);
18189 } else {
18190 spin_lock_irq(&phba->hbalock);
James Smart0c9ab6f2010-02-26 14:15:57 -050018191 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
James Smartfc2b9892010-02-26 14:15:29 -050018192 spin_unlock_irq(&phba->hbalock);
18193 /*
18194 * DEAD FCF event triggered FCF rediscover request
18195 * failed, last resort to fail over as a link down
18196 * to FCF registration.
18197 */
18198 lpfc_sli4_fcf_dead_failthrough(phba);
18199 }
James Smart0c9ab6f2010-02-26 14:15:57 -050018200 } else {
18201 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
James Smarta93ff372010-10-22 11:06:08 -040018202 "2775 Start FCF rediscover quiescent timer\n");
James Smartecfd03c2010-02-12 14:41:27 -050018203 /*
18204 * Start FCF rediscovery wait timer for pending FCF
18205 * before rescan FCF record table.
18206 */
18207 lpfc_fcf_redisc_wait_start_timer(phba);
James Smart0c9ab6f2010-02-26 14:15:57 -050018208 }
James Smartecfd03c2010-02-12 14:41:27 -050018209
18210 mempool_free(mbox, phba->mbox_mem_pool);
18211}
18212
18213/**
James Smart3804dc82010-07-14 15:31:37 -040018214 * lpfc_sli4_redisc_fcf_table - Request to rediscover entire FCF table by port.
James Smartecfd03c2010-02-12 14:41:27 -050018215 * @phba: pointer to lpfc hba data structure.
18216 *
18217 * This routine is invoked to request for rediscovery of the entire FCF table
18218 * by the port.
18219 **/
18220int
18221lpfc_sli4_redisc_fcf_table(struct lpfc_hba *phba)
18222{
18223 LPFC_MBOXQ_t *mbox;
18224 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
18225 int rc, length;
18226
James Smart0c9ab6f2010-02-26 14:15:57 -050018227 /* Cancel retry delay timers to all vports before FCF rediscover */
18228 lpfc_cancel_all_vport_retry_delay_timer(phba);
18229
James Smartecfd03c2010-02-12 14:41:27 -050018230 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18231 if (!mbox) {
18232 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
18233 "2745 Failed to allocate mbox for "
18234 "requesting FCF rediscover.\n");
18235 return -ENOMEM;
18236 }
18237
18238 length = (sizeof(struct lpfc_mbx_redisc_fcf_tbl) -
18239 sizeof(struct lpfc_sli4_cfg_mhdr));
18240 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
18241 LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF,
18242 length, LPFC_SLI4_MBX_EMBED);
18243
18244 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
18245 /* Set count to 0 for invalidating the entire FCF database */
18246 bf_set(lpfc_mbx_redisc_fcf_count, redisc_fcf, 0);
18247
18248 /* Issue the mailbox command asynchronously */
18249 mbox->vport = phba->pport;
18250 mbox->mbox_cmpl = lpfc_mbx_cmpl_redisc_fcf_table;
18251 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
18252
18253 if (rc == MBX_NOT_FINISHED) {
18254 mempool_free(mbox, phba->mbox_mem_pool);
18255 return -EIO;
18256 }
18257 return 0;
18258}
18259
18260/**
James Smartfc2b9892010-02-26 14:15:29 -050018261 * lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event
18262 * @phba: pointer to lpfc hba data structure.
18263 *
18264 * This function is the failover routine as a last resort to the FCF DEAD
18265 * event when driver failed to perform fast FCF failover.
18266 **/
18267void
18268lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba *phba)
18269{
18270 uint32_t link_state;
18271
18272 /*
18273 * Last resort as FCF DEAD event failover will treat this as
18274 * a link down, but save the link state because we don't want
18275 * it to be changed to Link Down unless it is already down.
18276 */
18277 link_state = phba->link_state;
18278 lpfc_linkdown(phba);
18279 phba->link_state = link_state;
18280
18281 /* Unregister FCF if no devices connected to it */
18282 lpfc_unregister_unused_fcf(phba);
18283}
18284
18285/**
James Smart026abb82011-12-13 13:20:45 -050018286 * lpfc_sli_get_config_region23 - Get sli3 port region 23 data.
James Smarta0c87cb2009-07-19 10:01:10 -040018287 * @phba: pointer to lpfc hba data structure.
James Smart026abb82011-12-13 13:20:45 -050018288 * @rgn23_data: pointer to configure region 23 data.
James Smarta0c87cb2009-07-19 10:01:10 -040018289 *
James Smart026abb82011-12-13 13:20:45 -050018290 * This function gets SLI3 port configure region 23 data through memory dump
18291 * mailbox command. When it successfully retrieves data, the size of the data
18292 * will be returned, otherwise, 0 will be returned.
James Smarta0c87cb2009-07-19 10:01:10 -040018293 **/
James Smart026abb82011-12-13 13:20:45 -050018294static uint32_t
18295lpfc_sli_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
James Smarta0c87cb2009-07-19 10:01:10 -040018296{
18297 LPFC_MBOXQ_t *pmb = NULL;
18298 MAILBOX_t *mb;
James Smart026abb82011-12-13 13:20:45 -050018299 uint32_t offset = 0;
James Smarta0c87cb2009-07-19 10:01:10 -040018300 int rc;
18301
James Smart026abb82011-12-13 13:20:45 -050018302 if (!rgn23_data)
18303 return 0;
18304
James Smarta0c87cb2009-07-19 10:01:10 -040018305 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18306 if (!pmb) {
18307 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smart026abb82011-12-13 13:20:45 -050018308 "2600 failed to allocate mailbox memory\n");
18309 return 0;
James Smarta0c87cb2009-07-19 10:01:10 -040018310 }
18311 mb = &pmb->u.mb;
18312
James Smarta0c87cb2009-07-19 10:01:10 -040018313 do {
18314 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_23);
18315 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
18316
18317 if (rc != MBX_SUCCESS) {
18318 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
James Smart026abb82011-12-13 13:20:45 -050018319 "2601 failed to read config "
18320 "region 23, rc 0x%x Status 0x%x\n",
18321 rc, mb->mbxStatus);
James Smarta0c87cb2009-07-19 10:01:10 -040018322 mb->un.varDmp.word_cnt = 0;
18323 }
18324 /*
18325 * dump mem may return a zero when finished or we got a
18326 * mailbox error, either way we are done.
18327 */
18328 if (mb->un.varDmp.word_cnt == 0)
18329 break;
18330 if (mb->un.varDmp.word_cnt > DMP_RGN23_SIZE - offset)
18331 mb->un.varDmp.word_cnt = DMP_RGN23_SIZE - offset;
18332
18333 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
James Smart026abb82011-12-13 13:20:45 -050018334 rgn23_data + offset,
18335 mb->un.varDmp.word_cnt);
James Smarta0c87cb2009-07-19 10:01:10 -040018336 offset += mb->un.varDmp.word_cnt;
18337 } while (mb->un.varDmp.word_cnt && offset < DMP_RGN23_SIZE);
18338
James Smart026abb82011-12-13 13:20:45 -050018339 mempool_free(pmb, phba->mbox_mem_pool);
18340 return offset;
18341}
18342
18343/**
18344 * lpfc_sli4_get_config_region23 - Get sli4 port region 23 data.
18345 * @phba: pointer to lpfc hba data structure.
18346 * @rgn23_data: pointer to configure region 23 data.
18347 *
18348 * This function gets SLI4 port configure region 23 data through memory dump
18349 * mailbox command. When it successfully retrieves data, the size of the data
18350 * will be returned, otherwise, 0 will be returned.
18351 **/
18352static uint32_t
18353lpfc_sli4_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
18354{
18355 LPFC_MBOXQ_t *mboxq = NULL;
18356 struct lpfc_dmabuf *mp = NULL;
18357 struct lpfc_mqe *mqe;
18358 uint32_t data_length = 0;
18359 int rc;
18360
18361 if (!rgn23_data)
18362 return 0;
18363
18364 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18365 if (!mboxq) {
18366 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18367 "3105 failed to allocate mailbox memory\n");
18368 return 0;
18369 }
18370
18371 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq))
18372 goto out;
18373 mqe = &mboxq->u.mqe;
18374 mp = (struct lpfc_dmabuf *) mboxq->context1;
18375 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
18376 if (rc)
18377 goto out;
18378 data_length = mqe->un.mb_words[5];
18379 if (data_length == 0)
18380 goto out;
18381 if (data_length > DMP_RGN23_SIZE) {
18382 data_length = 0;
18383 goto out;
18384 }
18385 lpfc_sli_pcimem_bcopy((char *)mp->virt, rgn23_data, data_length);
18386out:
18387 mempool_free(mboxq, phba->mbox_mem_pool);
18388 if (mp) {
18389 lpfc_mbuf_free(phba, mp->virt, mp->phys);
18390 kfree(mp);
18391 }
18392 return data_length;
18393}
18394
18395/**
18396 * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
18397 * @phba: pointer to lpfc hba data structure.
18398 *
18399 * This function read region 23 and parse TLV for port status to
18400 * decide if the user disaled the port. If the TLV indicates the
18401 * port is disabled, the hba_flag is set accordingly.
18402 **/
18403void
18404lpfc_sli_read_link_ste(struct lpfc_hba *phba)
18405{
18406 uint8_t *rgn23_data = NULL;
18407 uint32_t if_type, data_size, sub_tlv_len, tlv_offset;
18408 uint32_t offset = 0;
18409
18410 /* Get adapter Region 23 data */
18411 rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL);
18412 if (!rgn23_data)
18413 goto out;
18414
18415 if (phba->sli_rev < LPFC_SLI_REV4)
18416 data_size = lpfc_sli_get_config_region23(phba, rgn23_data);
18417 else {
18418 if_type = bf_get(lpfc_sli_intf_if_type,
18419 &phba->sli4_hba.sli_intf);
18420 if (if_type == LPFC_SLI_INTF_IF_TYPE_0)
18421 goto out;
18422 data_size = lpfc_sli4_get_config_region23(phba, rgn23_data);
18423 }
James Smarta0c87cb2009-07-19 10:01:10 -040018424
18425 if (!data_size)
18426 goto out;
18427
18428 /* Check the region signature first */
18429 if (memcmp(&rgn23_data[offset], LPFC_REGION23_SIGNATURE, 4)) {
18430 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18431 "2619 Config region 23 has bad signature\n");
18432 goto out;
18433 }
18434 offset += 4;
18435
18436 /* Check the data structure version */
18437 if (rgn23_data[offset] != LPFC_REGION23_VERSION) {
18438 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18439 "2620 Config region 23 has bad version\n");
18440 goto out;
18441 }
18442 offset += 4;
18443
18444 /* Parse TLV entries in the region */
18445 while (offset < data_size) {
18446 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC)
18447 break;
18448 /*
18449 * If the TLV is not driver specific TLV or driver id is
18450 * not linux driver id, skip the record.
18451 */
18452 if ((rgn23_data[offset] != DRIVER_SPECIFIC_TYPE) ||
18453 (rgn23_data[offset + 2] != LINUX_DRIVER_ID) ||
18454 (rgn23_data[offset + 3] != 0)) {
18455 offset += rgn23_data[offset + 1] * 4 + 4;
18456 continue;
18457 }
18458
18459 /* Driver found a driver specific TLV in the config region */
18460 sub_tlv_len = rgn23_data[offset + 1] * 4;
18461 offset += 4;
18462 tlv_offset = 0;
18463
18464 /*
18465 * Search for configured port state sub-TLV.
18466 */
18467 while ((offset < data_size) &&
18468 (tlv_offset < sub_tlv_len)) {
18469 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) {
18470 offset += 4;
18471 tlv_offset += 4;
18472 break;
18473 }
18474 if (rgn23_data[offset] != PORT_STE_TYPE) {
18475 offset += rgn23_data[offset + 1] * 4 + 4;
18476 tlv_offset += rgn23_data[offset + 1] * 4 + 4;
18477 continue;
18478 }
18479
18480 /* This HBA contains PORT_STE configured */
18481 if (!rgn23_data[offset + 2])
18482 phba->hba_flag |= LINK_DISABLED;
18483
18484 goto out;
18485 }
18486 }
James Smart026abb82011-12-13 13:20:45 -050018487
James Smarta0c87cb2009-07-19 10:01:10 -040018488out:
James Smarta0c87cb2009-07-19 10:01:10 -040018489 kfree(rgn23_data);
18490 return;
18491}
James Smart695a8142010-01-26 23:08:03 -050018492
18493/**
James Smart52d52442011-05-24 11:42:45 -040018494 * lpfc_wr_object - write an object to the firmware
18495 * @phba: HBA structure that indicates port to create a queue on.
18496 * @dmabuf_list: list of dmabufs to write to the port.
18497 * @size: the total byte value of the objects to write to the port.
18498 * @offset: the current offset to be used to start the transfer.
18499 *
18500 * This routine will create a wr_object mailbox command to send to the port.
18501 * the mailbox command will be constructed using the dma buffers described in
18502 * @dmabuf_list to create a list of BDEs. This routine will fill in as many
18503 * BDEs that the imbedded mailbox can support. The @offset variable will be
18504 * used to indicate the starting offset of the transfer and will also return
18505 * the offset after the write object mailbox has completed. @size is used to
18506 * determine the end of the object and whether the eof bit should be set.
18507 *
18508 * Return 0 is successful and offset will contain the the new offset to use
18509 * for the next write.
18510 * Return negative value for error cases.
18511 **/
18512int
18513lpfc_wr_object(struct lpfc_hba *phba, struct list_head *dmabuf_list,
18514 uint32_t size, uint32_t *offset)
18515{
18516 struct lpfc_mbx_wr_object *wr_object;
18517 LPFC_MBOXQ_t *mbox;
18518 int rc = 0, i = 0;
18519 uint32_t shdr_status, shdr_add_status;
18520 uint32_t mbox_tmo;
18521 union lpfc_sli4_cfg_shdr *shdr;
18522 struct lpfc_dmabuf *dmabuf;
18523 uint32_t written = 0;
18524
18525 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18526 if (!mbox)
18527 return -ENOMEM;
18528
18529 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
18530 LPFC_MBOX_OPCODE_WRITE_OBJECT,
18531 sizeof(struct lpfc_mbx_wr_object) -
18532 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
18533
18534 wr_object = (struct lpfc_mbx_wr_object *)&mbox->u.mqe.un.wr_object;
18535 wr_object->u.request.write_offset = *offset;
18536 sprintf((uint8_t *)wr_object->u.request.object_name, "/");
18537 wr_object->u.request.object_name[0] =
18538 cpu_to_le32(wr_object->u.request.object_name[0]);
18539 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 0);
18540 list_for_each_entry(dmabuf, dmabuf_list, list) {
18541 if (i >= LPFC_MBX_WR_CONFIG_MAX_BDE || written >= size)
18542 break;
18543 wr_object->u.request.bde[i].addrLow = putPaddrLow(dmabuf->phys);
18544 wr_object->u.request.bde[i].addrHigh =
18545 putPaddrHigh(dmabuf->phys);
18546 if (written + SLI4_PAGE_SIZE >= size) {
18547 wr_object->u.request.bde[i].tus.f.bdeSize =
18548 (size - written);
18549 written += (size - written);
18550 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 1);
18551 } else {
18552 wr_object->u.request.bde[i].tus.f.bdeSize =
18553 SLI4_PAGE_SIZE;
18554 written += SLI4_PAGE_SIZE;
18555 }
18556 i++;
18557 }
18558 wr_object->u.request.bde_count = i;
18559 bf_set(lpfc_wr_object_write_length, &wr_object->u.request, written);
18560 if (!phba->sli4_hba.intr_enable)
18561 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
18562 else {
James Smarta183a152011-10-10 21:32:43 -040018563 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
James Smart52d52442011-05-24 11:42:45 -040018564 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
18565 }
18566 /* The IOCTL status is embedded in the mailbox subheader. */
18567 shdr = (union lpfc_sli4_cfg_shdr *) &wr_object->header.cfg_shdr;
18568 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
18569 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
18570 if (rc != MBX_TIMEOUT)
18571 mempool_free(mbox, phba->mbox_mem_pool);
18572 if (shdr_status || shdr_add_status || rc) {
18573 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18574 "3025 Write Object mailbox failed with "
18575 "status x%x add_status x%x, mbx status x%x\n",
18576 shdr_status, shdr_add_status, rc);
18577 rc = -ENXIO;
18578 } else
18579 *offset += wr_object->u.response.actual_write_length;
18580 return rc;
18581}
18582
18583/**
James Smart695a8142010-01-26 23:08:03 -050018584 * lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands.
18585 * @vport: pointer to vport data structure.
18586 *
18587 * This function iterate through the mailboxq and clean up all REG_LOGIN
18588 * and REG_VPI mailbox commands associated with the vport. This function
18589 * is called when driver want to restart discovery of the vport due to
18590 * a Clear Virtual Link event.
18591 **/
18592void
18593lpfc_cleanup_pending_mbox(struct lpfc_vport *vport)
18594{
18595 struct lpfc_hba *phba = vport->phba;
18596 LPFC_MBOXQ_t *mb, *nextmb;
18597 struct lpfc_dmabuf *mp;
James Smart78730cf2010-04-06 15:06:30 -040018598 struct lpfc_nodelist *ndlp;
James Smartd439d282010-09-29 11:18:45 -040018599 struct lpfc_nodelist *act_mbx_ndlp = NULL;
James Smart589a52d2010-07-14 15:30:54 -040018600 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
James Smartd439d282010-09-29 11:18:45 -040018601 LIST_HEAD(mbox_cmd_list);
James Smart63e801c2010-11-20 23:14:19 -050018602 uint8_t restart_loop;
James Smart695a8142010-01-26 23:08:03 -050018603
James Smartd439d282010-09-29 11:18:45 -040018604 /* Clean up internally queued mailbox commands with the vport */
James Smart695a8142010-01-26 23:08:03 -050018605 spin_lock_irq(&phba->hbalock);
18606 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
18607 if (mb->vport != vport)
18608 continue;
18609
18610 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
18611 (mb->u.mb.mbxCommand != MBX_REG_VPI))
18612 continue;
18613
James Smartd439d282010-09-29 11:18:45 -040018614 list_del(&mb->list);
18615 list_add_tail(&mb->list, &mbox_cmd_list);
18616 }
18617 /* Clean up active mailbox command with the vport */
18618 mb = phba->sli.mbox_active;
18619 if (mb && (mb->vport == vport)) {
18620 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) ||
18621 (mb->u.mb.mbxCommand == MBX_REG_VPI))
18622 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
18623 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
18624 act_mbx_ndlp = (struct lpfc_nodelist *)mb->context2;
18625 /* Put reference count for delayed processing */
18626 act_mbx_ndlp = lpfc_nlp_get(act_mbx_ndlp);
18627 /* Unregister the RPI when mailbox complete */
18628 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
18629 }
18630 }
James Smart63e801c2010-11-20 23:14:19 -050018631 /* Cleanup any mailbox completions which are not yet processed */
18632 do {
18633 restart_loop = 0;
18634 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {
18635 /*
18636 * If this mailox is already processed or it is
18637 * for another vport ignore it.
18638 */
18639 if ((mb->vport != vport) ||
18640 (mb->mbox_flag & LPFC_MBX_IMED_UNREG))
18641 continue;
18642
18643 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
18644 (mb->u.mb.mbxCommand != MBX_REG_VPI))
18645 continue;
18646
18647 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
18648 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
18649 ndlp = (struct lpfc_nodelist *)mb->context2;
18650 /* Unregister the RPI when mailbox complete */
18651 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
18652 restart_loop = 1;
18653 spin_unlock_irq(&phba->hbalock);
18654 spin_lock(shost->host_lock);
18655 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
18656 spin_unlock(shost->host_lock);
18657 spin_lock_irq(&phba->hbalock);
18658 break;
18659 }
18660 }
18661 } while (restart_loop);
18662
James Smartd439d282010-09-29 11:18:45 -040018663 spin_unlock_irq(&phba->hbalock);
18664
18665 /* Release the cleaned-up mailbox commands */
18666 while (!list_empty(&mbox_cmd_list)) {
18667 list_remove_head(&mbox_cmd_list, mb, LPFC_MBOXQ_t, list);
James Smart695a8142010-01-26 23:08:03 -050018668 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
18669 mp = (struct lpfc_dmabuf *) (mb->context1);
18670 if (mp) {
18671 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
18672 kfree(mp);
18673 }
James Smart78730cf2010-04-06 15:06:30 -040018674 ndlp = (struct lpfc_nodelist *) mb->context2;
James Smartd439d282010-09-29 11:18:45 -040018675 mb->context2 = NULL;
James Smart78730cf2010-04-06 15:06:30 -040018676 if (ndlp) {
Dan Carpenterec21b3b2010-08-08 00:15:17 +020018677 spin_lock(shost->host_lock);
James Smart589a52d2010-07-14 15:30:54 -040018678 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
Dan Carpenterec21b3b2010-08-08 00:15:17 +020018679 spin_unlock(shost->host_lock);
James Smart78730cf2010-04-06 15:06:30 -040018680 lpfc_nlp_put(ndlp);
James Smart78730cf2010-04-06 15:06:30 -040018681 }
James Smart695a8142010-01-26 23:08:03 -050018682 }
James Smart695a8142010-01-26 23:08:03 -050018683 mempool_free(mb, phba->mbox_mem_pool);
18684 }
James Smartd439d282010-09-29 11:18:45 -040018685
18686 /* Release the ndlp with the cleaned-up active mailbox command */
18687 if (act_mbx_ndlp) {
18688 spin_lock(shost->host_lock);
18689 act_mbx_ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
18690 spin_unlock(shost->host_lock);
18691 lpfc_nlp_put(act_mbx_ndlp);
James Smart695a8142010-01-26 23:08:03 -050018692 }
James Smart695a8142010-01-26 23:08:03 -050018693}
18694
James Smart2a9bf3d2010-06-07 15:24:45 -040018695/**
18696 * lpfc_drain_txq - Drain the txq
18697 * @phba: Pointer to HBA context object.
18698 *
18699 * This function attempt to submit IOCBs on the txq
18700 * to the adapter. For SLI4 adapters, the txq contains
18701 * ELS IOCBs that have been deferred because the there
18702 * are no SGLs. This congestion can occur with large
18703 * vport counts during node discovery.
18704 **/
18705
18706uint32_t
18707lpfc_drain_txq(struct lpfc_hba *phba)
18708{
18709 LIST_HEAD(completions);
James Smart895427b2017-02-12 13:52:30 -080018710 struct lpfc_sli_ring *pring;
Daeseok Youn2e706372014-02-21 09:03:32 +090018711 struct lpfc_iocbq *piocbq = NULL;
James Smart2a9bf3d2010-06-07 15:24:45 -040018712 unsigned long iflags = 0;
18713 char *fail_msg = NULL;
18714 struct lpfc_sglq *sglq;
James Smart2f077842016-12-19 15:07:29 -080018715 union lpfc_wqe128 wqe128;
18716 union lpfc_wqe *wqe = (union lpfc_wqe *) &wqe128;
James Smarta2fc4aef2014-09-03 12:57:55 -040018717 uint32_t txq_cnt = 0;
James Smart2a9bf3d2010-06-07 15:24:45 -040018718
James Smart895427b2017-02-12 13:52:30 -080018719 pring = lpfc_phba_elsring(phba);
Dick Kennedy27b13132017-09-29 17:34:29 -070018720 if (unlikely(!pring))
18721 return 0;
James Smart895427b2017-02-12 13:52:30 -080018722
James Smart398d81c2013-05-31 17:04:19 -040018723 spin_lock_irqsave(&pring->ring_lock, iflags);
James Smart0e9bb8d2013-03-01 16:35:12 -050018724 list_for_each_entry(piocbq, &pring->txq, list) {
18725 txq_cnt++;
18726 }
18727
18728 if (txq_cnt > pring->txq_max)
18729 pring->txq_max = txq_cnt;
James Smart2a9bf3d2010-06-07 15:24:45 -040018730
James Smart398d81c2013-05-31 17:04:19 -040018731 spin_unlock_irqrestore(&pring->ring_lock, iflags);
James Smart2a9bf3d2010-06-07 15:24:45 -040018732
James Smart0e9bb8d2013-03-01 16:35:12 -050018733 while (!list_empty(&pring->txq)) {
James Smart398d81c2013-05-31 17:04:19 -040018734 spin_lock_irqsave(&pring->ring_lock, iflags);
James Smart2a9bf3d2010-06-07 15:24:45 -040018735
James Smart19ca7602010-11-20 23:11:55 -050018736 piocbq = lpfc_sli_ringtx_get(phba, pring);
James Smarta6298522012-06-12 13:54:11 -040018737 if (!piocbq) {
James Smart398d81c2013-05-31 17:04:19 -040018738 spin_unlock_irqrestore(&pring->ring_lock, iflags);
James Smarta6298522012-06-12 13:54:11 -040018739 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
18740 "2823 txq empty and txq_cnt is %d\n ",
James Smart0e9bb8d2013-03-01 16:35:12 -050018741 txq_cnt);
James Smarta6298522012-06-12 13:54:11 -040018742 break;
18743 }
James Smart895427b2017-02-12 13:52:30 -080018744 sglq = __lpfc_sli_get_els_sglq(phba, piocbq);
James Smart2a9bf3d2010-06-07 15:24:45 -040018745 if (!sglq) {
James Smart19ca7602010-11-20 23:11:55 -050018746 __lpfc_sli_ringtx_put(phba, pring, piocbq);
James Smart398d81c2013-05-31 17:04:19 -040018747 spin_unlock_irqrestore(&pring->ring_lock, iflags);
James Smart2a9bf3d2010-06-07 15:24:45 -040018748 break;
James Smart2a9bf3d2010-06-07 15:24:45 -040018749 }
James Smart0e9bb8d2013-03-01 16:35:12 -050018750 txq_cnt--;
James Smart2a9bf3d2010-06-07 15:24:45 -040018751
18752 /* The xri and iocb resources secured,
18753 * attempt to issue request
18754 */
James Smart6d368e52011-05-24 11:44:12 -040018755 piocbq->sli4_lxritag = sglq->sli4_lxritag;
James Smart2a9bf3d2010-06-07 15:24:45 -040018756 piocbq->sli4_xritag = sglq->sli4_xritag;
18757 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocbq, sglq))
18758 fail_msg = "to convert bpl to sgl";
James Smart2f077842016-12-19 15:07:29 -080018759 else if (lpfc_sli4_iocb2wqe(phba, piocbq, wqe))
James Smart2a9bf3d2010-06-07 15:24:45 -040018760 fail_msg = "to convert iocb to wqe";
James Smart2f077842016-12-19 15:07:29 -080018761 else if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, wqe))
James Smart2a9bf3d2010-06-07 15:24:45 -040018762 fail_msg = " - Wq is full";
18763 else
18764 lpfc_sli_ringtxcmpl_put(phba, pring, piocbq);
18765
18766 if (fail_msg) {
18767 /* Failed means we can't issue and need to cancel */
18768 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
18769 "2822 IOCB failed %s iotag 0x%x "
18770 "xri 0x%x\n",
18771 fail_msg,
18772 piocbq->iotag, piocbq->sli4_xritag);
18773 list_add_tail(&piocbq->list, &completions);
18774 }
James Smart398d81c2013-05-31 17:04:19 -040018775 spin_unlock_irqrestore(&pring->ring_lock, iflags);
James Smart2a9bf3d2010-06-07 15:24:45 -040018776 }
18777
James Smart2a9bf3d2010-06-07 15:24:45 -040018778 /* Cancel all the IOCBs that cannot be issued */
18779 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
18780 IOERR_SLI_ABORTED);
18781
James Smart0e9bb8d2013-03-01 16:35:12 -050018782 return txq_cnt;
James Smart2a9bf3d2010-06-07 15:24:45 -040018783}
James Smart895427b2017-02-12 13:52:30 -080018784
18785/**
18786 * lpfc_wqe_bpl2sgl - Convert the bpl/bde to a sgl.
18787 * @phba: Pointer to HBA context object.
18788 * @pwqe: Pointer to command WQE.
18789 * @sglq: Pointer to the scatter gather queue object.
18790 *
18791 * This routine converts the bpl or bde that is in the WQE
18792 * to a sgl list for the sli4 hardware. The physical address
18793 * of the bpl/bde is converted back to a virtual address.
18794 * If the WQE contains a BPL then the list of BDE's is
18795 * converted to sli4_sge's. If the WQE contains a single
18796 * BDE then it is converted to a single sli_sge.
18797 * The WQE is still in cpu endianness so the contents of
18798 * the bpl can be used without byte swapping.
18799 *
18800 * Returns valid XRI = Success, NO_XRI = Failure.
18801 */
18802static uint16_t
18803lpfc_wqe_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeq,
18804 struct lpfc_sglq *sglq)
18805{
18806 uint16_t xritag = NO_XRI;
18807 struct ulp_bde64 *bpl = NULL;
18808 struct ulp_bde64 bde;
18809 struct sli4_sge *sgl = NULL;
18810 struct lpfc_dmabuf *dmabuf;
18811 union lpfc_wqe *wqe;
18812 int numBdes = 0;
18813 int i = 0;
18814 uint32_t offset = 0; /* accumulated offset in the sg request list */
18815 int inbound = 0; /* number of sg reply entries inbound from firmware */
18816 uint32_t cmd;
18817
18818 if (!pwqeq || !sglq)
18819 return xritag;
18820
18821 sgl = (struct sli4_sge *)sglq->sgl;
18822 wqe = &pwqeq->wqe;
18823 pwqeq->iocb.ulpIoTag = pwqeq->iotag;
18824
18825 cmd = bf_get(wqe_cmnd, &wqe->generic.wqe_com);
18826 if (cmd == CMD_XMIT_BLS_RSP64_WQE)
18827 return sglq->sli4_xritag;
18828 numBdes = pwqeq->rsvd2;
18829 if (numBdes) {
18830 /* The addrHigh and addrLow fields within the WQE
18831 * have not been byteswapped yet so there is no
18832 * need to swap them back.
18833 */
18834 if (pwqeq->context3)
18835 dmabuf = (struct lpfc_dmabuf *)pwqeq->context3;
18836 else
18837 return xritag;
18838
18839 bpl = (struct ulp_bde64 *)dmabuf->virt;
18840 if (!bpl)
18841 return xritag;
18842
18843 for (i = 0; i < numBdes; i++) {
18844 /* Should already be byte swapped. */
18845 sgl->addr_hi = bpl->addrHigh;
18846 sgl->addr_lo = bpl->addrLow;
18847
18848 sgl->word2 = le32_to_cpu(sgl->word2);
18849 if ((i+1) == numBdes)
18850 bf_set(lpfc_sli4_sge_last, sgl, 1);
18851 else
18852 bf_set(lpfc_sli4_sge_last, sgl, 0);
18853 /* swap the size field back to the cpu so we
18854 * can assign it to the sgl.
18855 */
18856 bde.tus.w = le32_to_cpu(bpl->tus.w);
18857 sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
18858 /* The offsets in the sgl need to be accumulated
18859 * separately for the request and reply lists.
18860 * The request is always first, the reply follows.
18861 */
18862 switch (cmd) {
18863 case CMD_GEN_REQUEST64_WQE:
18864 /* add up the reply sg entries */
18865 if (bpl->tus.f.bdeFlags == BUFF_TYPE_BDE_64I)
18866 inbound++;
18867 /* first inbound? reset the offset */
18868 if (inbound == 1)
18869 offset = 0;
18870 bf_set(lpfc_sli4_sge_offset, sgl, offset);
18871 bf_set(lpfc_sli4_sge_type, sgl,
18872 LPFC_SGE_TYPE_DATA);
18873 offset += bde.tus.f.bdeSize;
18874 break;
18875 case CMD_FCP_TRSP64_WQE:
18876 bf_set(lpfc_sli4_sge_offset, sgl, 0);
18877 bf_set(lpfc_sli4_sge_type, sgl,
18878 LPFC_SGE_TYPE_DATA);
18879 break;
18880 case CMD_FCP_TSEND64_WQE:
18881 case CMD_FCP_TRECEIVE64_WQE:
18882 bf_set(lpfc_sli4_sge_type, sgl,
18883 bpl->tus.f.bdeFlags);
18884 if (i < 3)
18885 offset = 0;
18886 else
18887 offset += bde.tus.f.bdeSize;
18888 bf_set(lpfc_sli4_sge_offset, sgl, offset);
18889 break;
18890 }
18891 sgl->word2 = cpu_to_le32(sgl->word2);
18892 bpl++;
18893 sgl++;
18894 }
18895 } else if (wqe->gen_req.bde.tus.f.bdeFlags == BUFF_TYPE_BDE_64) {
18896 /* The addrHigh and addrLow fields of the BDE have not
18897 * been byteswapped yet so they need to be swapped
18898 * before putting them in the sgl.
18899 */
18900 sgl->addr_hi = cpu_to_le32(wqe->gen_req.bde.addrHigh);
18901 sgl->addr_lo = cpu_to_le32(wqe->gen_req.bde.addrLow);
18902 sgl->word2 = le32_to_cpu(sgl->word2);
18903 bf_set(lpfc_sli4_sge_last, sgl, 1);
18904 sgl->word2 = cpu_to_le32(sgl->word2);
18905 sgl->sge_len = cpu_to_le32(wqe->gen_req.bde.tus.f.bdeSize);
18906 }
18907 return sglq->sli4_xritag;
18908}
18909
18910/**
18911 * lpfc_sli4_issue_wqe - Issue an SLI4 Work Queue Entry (WQE)
18912 * @phba: Pointer to HBA context object.
18913 * @ring_number: Base sli ring number
18914 * @pwqe: Pointer to command WQE.
18915 **/
18916int
18917lpfc_sli4_issue_wqe(struct lpfc_hba *phba, uint32_t ring_number,
18918 struct lpfc_iocbq *pwqe)
18919{
18920 union lpfc_wqe *wqe = &pwqe->wqe;
James Smartf358dd02017-02-12 13:52:34 -080018921 struct lpfc_nvmet_rcv_ctx *ctxp;
James Smart895427b2017-02-12 13:52:30 -080018922 struct lpfc_queue *wq;
18923 struct lpfc_sglq *sglq;
18924 struct lpfc_sli_ring *pring;
18925 unsigned long iflags;
Dick Kennedycd22d602017-08-23 16:55:35 -070018926 uint32_t ret = 0;
James Smart895427b2017-02-12 13:52:30 -080018927
18928 /* NVME_LS and NVME_LS ABTS requests. */
18929 if (pwqe->iocb_flag & LPFC_IO_NVME_LS) {
18930 pring = phba->sli4_hba.nvmels_wq->pring;
18931 spin_lock_irqsave(&pring->ring_lock, iflags);
18932 sglq = __lpfc_sli_get_els_sglq(phba, pwqe);
18933 if (!sglq) {
18934 spin_unlock_irqrestore(&pring->ring_lock, iflags);
18935 return WQE_BUSY;
18936 }
18937 pwqe->sli4_lxritag = sglq->sli4_lxritag;
18938 pwqe->sli4_xritag = sglq->sli4_xritag;
18939 if (lpfc_wqe_bpl2sgl(phba, pwqe, sglq) == NO_XRI) {
18940 spin_unlock_irqrestore(&pring->ring_lock, iflags);
18941 return WQE_ERROR;
18942 }
18943 bf_set(wqe_xri_tag, &pwqe->wqe.xmit_bls_rsp.wqe_com,
18944 pwqe->sli4_xritag);
Dick Kennedycd22d602017-08-23 16:55:35 -070018945 ret = lpfc_sli4_wq_put(phba->sli4_hba.nvmels_wq, wqe);
18946 if (ret) {
James Smart895427b2017-02-12 13:52:30 -080018947 spin_unlock_irqrestore(&pring->ring_lock, iflags);
Dick Kennedycd22d602017-08-23 16:55:35 -070018948 return ret;
James Smart895427b2017-02-12 13:52:30 -080018949 }
Dick Kennedycd22d602017-08-23 16:55:35 -070018950
James Smart895427b2017-02-12 13:52:30 -080018951 lpfc_sli_ringtxcmpl_put(phba, pring, pwqe);
18952 spin_unlock_irqrestore(&pring->ring_lock, iflags);
18953 return 0;
18954 }
18955
18956 /* NVME_FCREQ and NVME_ABTS requests */
18957 if (pwqe->iocb_flag & LPFC_IO_NVME) {
18958 /* Get the IO distribution (hba_wqidx) for WQ assignment. */
18959 pring = phba->sli4_hba.nvme_wq[pwqe->hba_wqidx]->pring;
18960
18961 spin_lock_irqsave(&pring->ring_lock, iflags);
18962 wq = phba->sli4_hba.nvme_wq[pwqe->hba_wqidx];
18963 bf_set(wqe_cqid, &wqe->generic.wqe_com,
18964 phba->sli4_hba.nvme_cq[pwqe->hba_wqidx]->queue_id);
Dick Kennedycd22d602017-08-23 16:55:35 -070018965 ret = lpfc_sli4_wq_put(wq, wqe);
18966 if (ret) {
James Smart895427b2017-02-12 13:52:30 -080018967 spin_unlock_irqrestore(&pring->ring_lock, iflags);
Dick Kennedycd22d602017-08-23 16:55:35 -070018968 return ret;
James Smart895427b2017-02-12 13:52:30 -080018969 }
18970 lpfc_sli_ringtxcmpl_put(phba, pring, pwqe);
18971 spin_unlock_irqrestore(&pring->ring_lock, iflags);
18972 return 0;
18973 }
18974
James Smartf358dd02017-02-12 13:52:34 -080018975 /* NVMET requests */
18976 if (pwqe->iocb_flag & LPFC_IO_NVMET) {
18977 /* Get the IO distribution (hba_wqidx) for WQ assignment. */
18978 pring = phba->sli4_hba.nvme_wq[pwqe->hba_wqidx]->pring;
18979
18980 spin_lock_irqsave(&pring->ring_lock, iflags);
18981 ctxp = pwqe->context2;
James Smart6c621a22017-05-15 15:20:45 -070018982 sglq = ctxp->ctxbuf->sglq;
James Smartf358dd02017-02-12 13:52:34 -080018983 if (pwqe->sli4_xritag == NO_XRI) {
18984 pwqe->sli4_lxritag = sglq->sli4_lxritag;
18985 pwqe->sli4_xritag = sglq->sli4_xritag;
18986 }
18987 bf_set(wqe_xri_tag, &pwqe->wqe.xmit_bls_rsp.wqe_com,
18988 pwqe->sli4_xritag);
18989 wq = phba->sli4_hba.nvme_wq[pwqe->hba_wqidx];
18990 bf_set(wqe_cqid, &wqe->generic.wqe_com,
18991 phba->sli4_hba.nvme_cq[pwqe->hba_wqidx]->queue_id);
Dick Kennedycd22d602017-08-23 16:55:35 -070018992 ret = lpfc_sli4_wq_put(wq, wqe);
18993 if (ret) {
James Smartf358dd02017-02-12 13:52:34 -080018994 spin_unlock_irqrestore(&pring->ring_lock, iflags);
Dick Kennedycd22d602017-08-23 16:55:35 -070018995 return ret;
James Smartf358dd02017-02-12 13:52:34 -080018996 }
18997 lpfc_sli_ringtxcmpl_put(phba, pring, pwqe);
18998 spin_unlock_irqrestore(&pring->ring_lock, iflags);
18999 return 0;
19000 }
James Smart895427b2017-02-12 13:52:30 -080019001 return WQE_ERROR;
19002}