| /******************************************************************* |
| * This file is part of the Emulex Linux Device Driver for * |
| * Fibre Channel Host Bus Adapters. * |
| * Copyright (C) 2007-2008 Emulex. All rights reserved. * |
| * EMULEX and SLI are trademarks of Emulex. * |
| * www.emulex.com * |
| * * |
| * This program is free software; you can redistribute it and/or * |
| * modify it under the terms of version 2 of the GNU General * |
| * Public License as published by the Free Software Foundation. * |
| * This program is distributed in the hope that it will be useful. * |
| * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * |
| * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * |
| * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * |
| * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * |
| * TO BE LEGALLY INVALID. See the GNU General Public License for * |
| * more details, a copy of which can be found in the file COPYING * |
| * included with this package. * |
| *******************************************************************/ |
| |
| #include <linux/blkdev.h> |
| #include <linux/delay.h> |
| #include <linux/dma-mapping.h> |
| #include <linux/idr.h> |
| #include <linux/interrupt.h> |
| #include <linux/kthread.h> |
| #include <linux/pci.h> |
| #include <linux/spinlock.h> |
| #include <linux/ctype.h> |
| |
| #include <scsi/scsi.h> |
| #include <scsi/scsi_device.h> |
| #include <scsi/scsi_host.h> |
| #include <scsi/scsi_transport_fc.h> |
| |
| #include "lpfc_hw.h" |
| #include "lpfc_sli.h" |
| #include "lpfc_disc.h" |
| #include "lpfc_scsi.h" |
| #include "lpfc.h" |
| #include "lpfc_logmsg.h" |
| #include "lpfc_crtn.h" |
| #include "lpfc_vport.h" |
| #include "lpfc_version.h" |
| #include "lpfc_compat.h" |
| #include "lpfc_debugfs.h" |
| |
| #ifdef CONFIG_LPFC_DEBUG_FS |
| /** |
| * debugfs interface |
| * |
| * To access this interface the user should: |
| * # mkdir /debug |
| * # mount -t debugfs none /debug |
| * |
| * The lpfc debugfs directory hierarchy is: |
| * lpfc/lpfcX/vportY |
| * where X is the lpfc hba unique_id |
| * where Y is the vport VPI on that hba |
| * |
| * Debugging services available per vport: |
| * discovery_trace |
| * This is an ACSII readable file that contains a trace of the last |
| * lpfc_debugfs_max_disc_trc events that happened on a specific vport. |
| * See lpfc_debugfs.h for different categories of discovery events. |
| * To enable the discovery trace, the following module parameters must be set: |
| * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support |
| * lpfc_debugfs_max_disc_trc=X Where X is the event trace depth for |
| * EACH vport. X MUST also be a power of 2. |
| * lpfc_debugfs_mask_disc_trc=Y Where Y is an event mask as defined in |
| * lpfc_debugfs.h . |
| * |
| * slow_ring_trace |
| * This is an ACSII readable file that contains a trace of the last |
| * lpfc_debugfs_max_slow_ring_trc events that happened on a specific HBA. |
| * To enable the slow ring trace, the following module parameters must be set: |
| * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support |
| * lpfc_debugfs_max_slow_ring_trc=X Where X is the event trace depth for |
| * the HBA. X MUST also be a power of 2. |
| */ |
| static int lpfc_debugfs_enable = 1; |
| module_param(lpfc_debugfs_enable, int, 0); |
| MODULE_PARM_DESC(lpfc_debugfs_enable, "Enable debugfs services"); |
| |
| /* This MUST be a power of 2 */ |
| static int lpfc_debugfs_max_disc_trc; |
| module_param(lpfc_debugfs_max_disc_trc, int, 0); |
| MODULE_PARM_DESC(lpfc_debugfs_max_disc_trc, |
| "Set debugfs discovery trace depth"); |
| |
| /* This MUST be a power of 2 */ |
| static int lpfc_debugfs_max_slow_ring_trc; |
| module_param(lpfc_debugfs_max_slow_ring_trc, int, 0); |
| MODULE_PARM_DESC(lpfc_debugfs_max_slow_ring_trc, |
| "Set debugfs slow ring trace depth"); |
| |
| int lpfc_debugfs_mask_disc_trc; |
| module_param(lpfc_debugfs_mask_disc_trc, int, 0); |
| MODULE_PARM_DESC(lpfc_debugfs_mask_disc_trc, |
| "Set debugfs discovery trace mask"); |
| |
| #include <linux/debugfs.h> |
| |
| /* size of output line, for discovery_trace and slow_ring_trace */ |
| #define LPFC_DEBUG_TRC_ENTRY_SIZE 100 |
| |
| /* nodelist output buffer size */ |
| #define LPFC_NODELIST_SIZE 8192 |
| #define LPFC_NODELIST_ENTRY_SIZE 120 |
| |
| /* dumpHBASlim output buffer size */ |
| #define LPFC_DUMPHBASLIM_SIZE 4096 |
| |
| /* dumpHostSlim output buffer size */ |
| #define LPFC_DUMPHOSTSLIM_SIZE 4096 |
| |
| /* hbqinfo output buffer size */ |
| #define LPFC_HBQINFO_SIZE 8192 |
| |
| struct lpfc_debug { |
| char *buffer; |
| int len; |
| }; |
| |
| static atomic_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0); |
| static unsigned long lpfc_debugfs_start_time = 0L; |
| |
| /** |
| * lpfc_debugfs_disc_trc_data - Dump discovery logging to a buffer. |
| * @vport: The vport to gather the log info from. |
| * @buf: The buffer to dump log into. |
| * @size: The maximum amount of data to process. |
| * |
| * Description: |
| * This routine gathers the lpfc discovery debugfs data from the @vport and |
| * dumps it to @buf up to @size number of bytes. It will start at the next entry |
| * in the log and process the log until the end of the buffer. Then it will |
| * gather from the beginning of the log and process until the current entry. |
| * |
| * Notes: |
| * Discovery logging will be disabled while while this routine dumps the log. |
| * |
| * Return Value: |
| * This routine returns the amount of bytes that were dumped into @buf and will |
| * not exceed @size. |
| **/ |
| static int |
| lpfc_debugfs_disc_trc_data(struct lpfc_vport *vport, char *buf, int size) |
| { |
| int i, index, len, enable; |
| uint32_t ms; |
| struct lpfc_debugfs_trc *dtp; |
| char buffer[LPFC_DEBUG_TRC_ENTRY_SIZE]; |
| |
| enable = lpfc_debugfs_enable; |
| lpfc_debugfs_enable = 0; |
| |
| len = 0; |
| index = (atomic_read(&vport->disc_trc_cnt) + 1) & |
| (lpfc_debugfs_max_disc_trc - 1); |
| for (i = index; i < lpfc_debugfs_max_disc_trc; i++) { |
| dtp = vport->disc_trc + i; |
| if (!dtp->fmt) |
| continue; |
| ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); |
| snprintf(buffer, |
| LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", |
| dtp->seq_cnt, ms, dtp->fmt); |
| len += snprintf(buf+len, size-len, buffer, |
| dtp->data1, dtp->data2, dtp->data3); |
| } |
| for (i = 0; i < index; i++) { |
| dtp = vport->disc_trc + i; |
| if (!dtp->fmt) |
| continue; |
| ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); |
| snprintf(buffer, |
| LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", |
| dtp->seq_cnt, ms, dtp->fmt); |
| len += snprintf(buf+len, size-len, buffer, |
| dtp->data1, dtp->data2, dtp->data3); |
| } |
| |
| lpfc_debugfs_enable = enable; |
| return len; |
| } |
| |
| /** |
| * lpfc_debugfs_slow_ring_trc_data - Dump slow ring logging to a buffer. |
| * @phba: The HBA to gather the log info from. |
| * @buf: The buffer to dump log into. |
| * @size: The maximum amount of data to process. |
| * |
| * Description: |
| * This routine gathers the lpfc slow ring debugfs data from the @phba and |
| * dumps it to @buf up to @size number of bytes. It will start at the next entry |
| * in the log and process the log until the end of the buffer. Then it will |
| * gather from the beginning of the log and process until the current entry. |
| * |
| * Notes: |
| * Slow ring logging will be disabled while while this routine dumps the log. |
| * |
| * Return Value: |
| * This routine returns the amount of bytes that were dumped into @buf and will |
| * not exceed @size. |
| **/ |
| static int |
| lpfc_debugfs_slow_ring_trc_data(struct lpfc_hba *phba, char *buf, int size) |
| { |
| int i, index, len, enable; |
| uint32_t ms; |
| struct lpfc_debugfs_trc *dtp; |
| char buffer[LPFC_DEBUG_TRC_ENTRY_SIZE]; |
| |
| |
| enable = lpfc_debugfs_enable; |
| lpfc_debugfs_enable = 0; |
| |
| len = 0; |
| index = (atomic_read(&phba->slow_ring_trc_cnt) + 1) & |
| (lpfc_debugfs_max_slow_ring_trc - 1); |
| for (i = index; i < lpfc_debugfs_max_slow_ring_trc; i++) { |
| dtp = phba->slow_ring_trc + i; |
| if (!dtp->fmt) |
| continue; |
| ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); |
| snprintf(buffer, |
| LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", |
| dtp->seq_cnt, ms, dtp->fmt); |
| len += snprintf(buf+len, size-len, buffer, |
| dtp->data1, dtp->data2, dtp->data3); |
| } |
| for (i = 0; i < index; i++) { |
| dtp = phba->slow_ring_trc + i; |
| if (!dtp->fmt) |
| continue; |
| ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); |
| snprintf(buffer, |
| LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", |
| dtp->seq_cnt, ms, dtp->fmt); |
| len += snprintf(buf+len, size-len, buffer, |
| dtp->data1, dtp->data2, dtp->data3); |
| } |
| |
| lpfc_debugfs_enable = enable; |
| return len; |
| } |
| |
| static int lpfc_debugfs_last_hbq = -1; |
| |
| /** |
| * lpfc_debugfs_hbqinfo_data - Dump host buffer queue info to a buffer. |
| * @phba: The HBA to gather host buffer info from. |
| * @buf: The buffer to dump log into. |
| * @size: The maximum amount of data to process. |
| * |
| * Description: |
| * This routine dumps the host buffer queue info from the @phba to @buf up to |
| * @size number of bytes. A header that describes the current hbq state will be |
| * dumped to @buf first and then info on each hbq entry will be dumped to @buf |
| * until @size bytes have been dumped or all the hbq info has been dumped. |
| * |
| * Notes: |
| * This routine will rotate through each configured HBQ each time called. |
| * |
| * Return Value: |
| * This routine returns the amount of bytes that were dumped into @buf and will |
| * not exceed @size. |
| **/ |
| static int |
| lpfc_debugfs_hbqinfo_data(struct lpfc_hba *phba, char *buf, int size) |
| { |
| int len = 0; |
| int cnt, i, j, found, posted, low; |
| uint32_t phys, raw_index, getidx; |
| struct lpfc_hbq_init *hip; |
| struct hbq_s *hbqs; |
| struct lpfc_hbq_entry *hbqe; |
| struct lpfc_dmabuf *d_buf; |
| struct hbq_dmabuf *hbq_buf; |
| |
| cnt = LPFC_HBQINFO_SIZE; |
| spin_lock_irq(&phba->hbalock); |
| |
| /* toggle between multiple hbqs, if any */ |
| i = lpfc_sli_hbq_count(); |
| if (i > 1) { |
| lpfc_debugfs_last_hbq++; |
| if (lpfc_debugfs_last_hbq >= i) |
| lpfc_debugfs_last_hbq = 0; |
| } |
| else |
| lpfc_debugfs_last_hbq = 0; |
| |
| i = lpfc_debugfs_last_hbq; |
| |
| len += snprintf(buf+len, size-len, "HBQ %d Info\n", i); |
| |
| hbqs = &phba->hbqs[i]; |
| posted = 0; |
| list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list) |
| posted++; |
| |
| hip = lpfc_hbq_defs[i]; |
| len += snprintf(buf+len, size-len, |
| "idx:%d prof:%d rn:%d bufcnt:%d icnt:%d acnt:%d posted %d\n", |
| hip->hbq_index, hip->profile, hip->rn, |
| hip->buffer_count, hip->init_count, hip->add_count, posted); |
| |
| raw_index = phba->hbq_get[i]; |
| getidx = le32_to_cpu(raw_index); |
| len += snprintf(buf+len, size-len, |
| "entrys:%d bufcnt:%d Put:%d nPut:%d localGet:%d hbaGet:%d\n", |
| hbqs->entry_count, hbqs->buffer_count, hbqs->hbqPutIdx, |
| hbqs->next_hbqPutIdx, hbqs->local_hbqGetIdx, getidx); |
| |
| hbqe = (struct lpfc_hbq_entry *) phba->hbqs[i].hbq_virt; |
| for (j=0; j<hbqs->entry_count; j++) { |
| len += snprintf(buf+len, size-len, |
| "%03d: %08x %04x %05x ", j, |
| le32_to_cpu(hbqe->bde.addrLow), |
| le32_to_cpu(hbqe->bde.tus.w), |
| le32_to_cpu(hbqe->buffer_tag)); |
| i = 0; |
| found = 0; |
| |
| /* First calculate if slot has an associated posted buffer */ |
| low = hbqs->hbqPutIdx - posted; |
| if (low >= 0) { |
| if ((j >= hbqs->hbqPutIdx) || (j < low)) { |
| len += snprintf(buf+len, size-len, "Unused\n"); |
| goto skipit; |
| } |
| } |
| else { |
| if ((j >= hbqs->hbqPutIdx) && |
| (j < (hbqs->entry_count+low))) { |
| len += snprintf(buf+len, size-len, "Unused\n"); |
| goto skipit; |
| } |
| } |
| |
| /* Get the Buffer info for the posted buffer */ |
| list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list) { |
| hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf); |
| phys = ((uint64_t)hbq_buf->dbuf.phys & 0xffffffff); |
| if (phys == le32_to_cpu(hbqe->bde.addrLow)) { |
| len += snprintf(buf+len, size-len, |
| "Buf%d: %p %06x\n", i, |
| hbq_buf->dbuf.virt, hbq_buf->tag); |
| found = 1; |
| break; |
| } |
| i++; |
| } |
| if (!found) { |
| len += snprintf(buf+len, size-len, "No DMAinfo?\n"); |
| } |
| skipit: |
| hbqe++; |
| if (len > LPFC_HBQINFO_SIZE - 54) |
| break; |
| } |
| spin_unlock_irq(&phba->hbalock); |
| return len; |
| } |
| |
| static int lpfc_debugfs_last_hba_slim_off; |
| |
| /** |
| * lpfc_debugfs_dumpHBASlim_data - Dump HBA SLIM info to a buffer. |
| * @phba: The HBA to gather SLIM info from. |
| * @buf: The buffer to dump log into. |
| * @size: The maximum amount of data to process. |
| * |
| * Description: |
| * This routine dumps the current contents of HBA SLIM for the HBA associated |
| * with @phba to @buf up to @size bytes of data. This is the raw HBA SLIM data. |
| * |
| * Notes: |
| * This routine will only dump up to 1024 bytes of data each time called and |
| * should be called multiple times to dump the entire HBA SLIM. |
| * |
| * Return Value: |
| * This routine returns the amount of bytes that were dumped into @buf and will |
| * not exceed @size. |
| **/ |
| static int |
| lpfc_debugfs_dumpHBASlim_data(struct lpfc_hba *phba, char *buf, int size) |
| { |
| int len = 0; |
| int i, off; |
| uint32_t *ptr; |
| char buffer[1024]; |
| |
| off = 0; |
| spin_lock_irq(&phba->hbalock); |
| |
| len += snprintf(buf+len, size-len, "HBA SLIM\n"); |
| lpfc_memcpy_from_slim(buffer, |
| ((uint8_t *)phba->MBslimaddr) + lpfc_debugfs_last_hba_slim_off, |
| 1024); |
| |
| ptr = (uint32_t *)&buffer[0]; |
| off = lpfc_debugfs_last_hba_slim_off; |
| |
| /* Set it up for the next time */ |
| lpfc_debugfs_last_hba_slim_off += 1024; |
| if (lpfc_debugfs_last_hba_slim_off >= 4096) |
| lpfc_debugfs_last_hba_slim_off = 0; |
| |
| i = 1024; |
| while (i > 0) { |
| len += snprintf(buf+len, size-len, |
| "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n", |
| off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), |
| *(ptr+5), *(ptr+6), *(ptr+7)); |
| ptr += 8; |
| i -= (8 * sizeof(uint32_t)); |
| off += (8 * sizeof(uint32_t)); |
| } |
| |
| spin_unlock_irq(&phba->hbalock); |
| return len; |
| } |
| |
| /** |
| * lpfc_debugfs_dumpHostSlim_data - Dump host SLIM info to a buffer. |
| * @phba: The HBA to gather Host SLIM info from. |
| * @buf: The buffer to dump log into. |
| * @size: The maximum amount of data to process. |
| * |
| * Description: |
| * This routine dumps the current contents of host SLIM for the host associated |
| * with @phba to @buf up to @size bytes of data. The dump will contain the |
| * Mailbox, PCB, Rings, and Registers that are located in host memory. |
| * |
| * Return Value: |
| * This routine returns the amount of bytes that were dumped into @buf and will |
| * not exceed @size. |
| **/ |
| static int |
| lpfc_debugfs_dumpHostSlim_data(struct lpfc_hba *phba, char *buf, int size) |
| { |
| int len = 0; |
| int i, off; |
| uint32_t word0, word1, word2, word3; |
| uint32_t *ptr; |
| struct lpfc_pgp *pgpp; |
| struct lpfc_sli *psli = &phba->sli; |
| struct lpfc_sli_ring *pring; |
| |
| off = 0; |
| spin_lock_irq(&phba->hbalock); |
| |
| len += snprintf(buf+len, size-len, "SLIM Mailbox\n"); |
| ptr = (uint32_t *)phba->slim2p; |
| i = sizeof(MAILBOX_t); |
| while (i > 0) { |
| len += snprintf(buf+len, size-len, |
| "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n", |
| off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), |
| *(ptr+5), *(ptr+6), *(ptr+7)); |
| ptr += 8; |
| i -= (8 * sizeof(uint32_t)); |
| off += (8 * sizeof(uint32_t)); |
| } |
| |
| len += snprintf(buf+len, size-len, "SLIM PCB\n"); |
| ptr = (uint32_t *)&phba->slim2p->pcb; |
| i = sizeof(PCB_t); |
| while (i > 0) { |
| len += snprintf(buf+len, size-len, |
| "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n", |
| off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), |
| *(ptr+5), *(ptr+6), *(ptr+7)); |
| ptr += 8; |
| i -= (8 * sizeof(uint32_t)); |
| off += (8 * sizeof(uint32_t)); |
| } |
| |
| pgpp = (struct lpfc_pgp *)&phba->slim2p->mbx.us.s3_pgp.port; |
| pring = &psli->ring[0]; |
| len += snprintf(buf+len, size-len, |
| "Ring 0: CMD GetInx:%d (Max:%d Next:%d Local:%d flg:x%x) " |
| "RSP PutInx:%d Max:%d\n", |
| pgpp->cmdGetInx, pring->numCiocb, |
| pring->next_cmdidx, pring->local_getidx, pring->flag, |
| pgpp->rspPutInx, pring->numRiocb); |
| pgpp++; |
| |
| pring = &psli->ring[1]; |
| len += snprintf(buf+len, size-len, |
| "Ring 1: CMD GetInx:%d (Max:%d Next:%d Local:%d flg:x%x) " |
| "RSP PutInx:%d Max:%d\n", |
| pgpp->cmdGetInx, pring->numCiocb, |
| pring->next_cmdidx, pring->local_getidx, pring->flag, |
| pgpp->rspPutInx, pring->numRiocb); |
| pgpp++; |
| |
| pring = &psli->ring[2]; |
| len += snprintf(buf+len, size-len, |
| "Ring 2: CMD GetInx:%d (Max:%d Next:%d Local:%d flg:x%x) " |
| "RSP PutInx:%d Max:%d\n", |
| pgpp->cmdGetInx, pring->numCiocb, |
| pring->next_cmdidx, pring->local_getidx, pring->flag, |
| pgpp->rspPutInx, pring->numRiocb); |
| pgpp++; |
| |
| pring = &psli->ring[3]; |
| len += snprintf(buf+len, size-len, |
| "Ring 3: CMD GetInx:%d (Max:%d Next:%d Local:%d flg:x%x) " |
| "RSP PutInx:%d Max:%d\n", |
| pgpp->cmdGetInx, pring->numCiocb, |
| pring->next_cmdidx, pring->local_getidx, pring->flag, |
| pgpp->rspPutInx, pring->numRiocb); |
| |
| |
| ptr = (uint32_t *)&phba->slim2p->mbx.us.s3_pgp.hbq_get; |
| word0 = readl(phba->HAregaddr); |
| word1 = readl(phba->CAregaddr); |
| word2 = readl(phba->HSregaddr); |
| word3 = readl(phba->HCregaddr); |
| len += snprintf(buf+len, size-len, "HA:%08x CA:%08x HS:%08x HC:%08x\n", |
| word0, word1, word2, word3); |
| spin_unlock_irq(&phba->hbalock); |
| return len; |
| } |
| |
| /** |
| * lpfc_debugfs_nodelist_data - Dump target node list to a buffer. |
| * @vport: The vport to gather target node info from. |
| * @buf: The buffer to dump log into. |
| * @size: The maximum amount of data to process. |
| * |
| * Description: |
| * This routine dumps the current target node list associated with @vport to |
| * @buf up to @size bytes of data. Each node entry in the dump will contain a |
| * node state, DID, WWPN, WWNN, RPI, flags, type, and other useful fields. |
| * |
| * Return Value: |
| * This routine returns the amount of bytes that were dumped into @buf and will |
| * not exceed @size. |
| **/ |
| static int |
| lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size) |
| { |
| int len = 0; |
| int cnt; |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| struct lpfc_nodelist *ndlp; |
| unsigned char *statep, *name; |
| |
| cnt = (LPFC_NODELIST_SIZE / LPFC_NODELIST_ENTRY_SIZE); |
| |
| spin_lock_irq(shost->host_lock); |
| list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { |
| if (!cnt) { |
| len += snprintf(buf+len, size-len, |
| "Missing Nodelist Entries\n"); |
| break; |
| } |
| cnt--; |
| switch (ndlp->nlp_state) { |
| case NLP_STE_UNUSED_NODE: |
| statep = "UNUSED"; |
| break; |
| case NLP_STE_PLOGI_ISSUE: |
| statep = "PLOGI "; |
| break; |
| case NLP_STE_ADISC_ISSUE: |
| statep = "ADISC "; |
| break; |
| case NLP_STE_REG_LOGIN_ISSUE: |
| statep = "REGLOG"; |
| break; |
| case NLP_STE_PRLI_ISSUE: |
| statep = "PRLI "; |
| break; |
| case NLP_STE_UNMAPPED_NODE: |
| statep = "UNMAP "; |
| break; |
| case NLP_STE_MAPPED_NODE: |
| statep = "MAPPED"; |
| break; |
| case NLP_STE_NPR_NODE: |
| statep = "NPR "; |
| break; |
| default: |
| statep = "UNKNOWN"; |
| } |
| len += snprintf(buf+len, size-len, "%s DID:x%06x ", |
| statep, ndlp->nlp_DID); |
| name = (unsigned char *)&ndlp->nlp_portname; |
| len += snprintf(buf+len, size-len, |
| "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x ", |
| *name, *(name+1), *(name+2), *(name+3), |
| *(name+4), *(name+5), *(name+6), *(name+7)); |
| name = (unsigned char *)&ndlp->nlp_nodename; |
| len += snprintf(buf+len, size-len, |
| "WWNN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x ", |
| *name, *(name+1), *(name+2), *(name+3), |
| *(name+4), *(name+5), *(name+6), *(name+7)); |
| len += snprintf(buf+len, size-len, "RPI:%03d flag:x%08x ", |
| ndlp->nlp_rpi, ndlp->nlp_flag); |
| if (!ndlp->nlp_type) |
| len += snprintf(buf+len, size-len, "UNKNOWN_TYPE "); |
| if (ndlp->nlp_type & NLP_FC_NODE) |
| len += snprintf(buf+len, size-len, "FC_NODE "); |
| if (ndlp->nlp_type & NLP_FABRIC) |
| len += snprintf(buf+len, size-len, "FABRIC "); |
| if (ndlp->nlp_type & NLP_FCP_TARGET) |
| len += snprintf(buf+len, size-len, "FCP_TGT sid:%d ", |
| ndlp->nlp_sid); |
| if (ndlp->nlp_type & NLP_FCP_INITIATOR) |
| len += snprintf(buf+len, size-len, "FCP_INITIATOR "); |
| len += snprintf(buf+len, size-len, "usgmap:%x ", |
| ndlp->nlp_usg_map); |
| len += snprintf(buf+len, size-len, "refcnt:%x", |
| atomic_read(&ndlp->kref.refcount)); |
| len += snprintf(buf+len, size-len, "\n"); |
| } |
| spin_unlock_irq(shost->host_lock); |
| return len; |
| } |
| #endif |
| |
| /** |
| * lpfc_debugfs_disc_trc - Store discovery trace log. |
| * @vport: The vport to associate this trace string with for retrieval. |
| * @mask: Log entry classification. |
| * @fmt: Format string to be displayed when dumping the log. |
| * @data1: 1st data parameter to be applied to @fmt. |
| * @data2: 2nd data parameter to be applied to @fmt. |
| * @data3: 3rd data parameter to be applied to @fmt. |
| * |
| * Description: |
| * This routine is used by the driver code to add a debugfs log entry to the |
| * discovery trace buffer associated with @vport. Only entries with a @mask that |
| * match the current debugfs discovery mask will be saved. Entries that do not |
| * match will be thrown away. @fmt, @data1, @data2, and @data3 are used like |
| * printf when displaying the log. |
| **/ |
| inline void |
| lpfc_debugfs_disc_trc(struct lpfc_vport *vport, int mask, char *fmt, |
| uint32_t data1, uint32_t data2, uint32_t data3) |
| { |
| #ifdef CONFIG_LPFC_DEBUG_FS |
| struct lpfc_debugfs_trc *dtp; |
| int index; |
| |
| if (!(lpfc_debugfs_mask_disc_trc & mask)) |
| return; |
| |
| if (!lpfc_debugfs_enable || !lpfc_debugfs_max_disc_trc || |
| !vport || !vport->disc_trc) |
| return; |
| |
| index = atomic_inc_return(&vport->disc_trc_cnt) & |
| (lpfc_debugfs_max_disc_trc - 1); |
| dtp = vport->disc_trc + index; |
| dtp->fmt = fmt; |
| dtp->data1 = data1; |
| dtp->data2 = data2; |
| dtp->data3 = data3; |
| dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); |
| dtp->jif = jiffies; |
| #endif |
| return; |
| } |
| |
| /** |
| * lpfc_debugfs_slow_ring_trc - Store slow ring trace log. |
| * @phba: The phba to associate this trace string with for retrieval. |
| * @fmt: Format string to be displayed when dumping the log. |
| * @data1: 1st data parameter to be applied to @fmt. |
| * @data2: 2nd data parameter to be applied to @fmt. |
| * @data3: 3rd data parameter to be applied to @fmt. |
| * |
| * Description: |
| * This routine is used by the driver code to add a debugfs log entry to the |
| * discovery trace buffer associated with @vport. @fmt, @data1, @data2, and |
| * @data3 are used like printf when displaying the log. |
| **/ |
| inline void |
| lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt, |
| uint32_t data1, uint32_t data2, uint32_t data3) |
| { |
| #ifdef CONFIG_LPFC_DEBUG_FS |
| struct lpfc_debugfs_trc *dtp; |
| int index; |
| |
| if (!lpfc_debugfs_enable || !lpfc_debugfs_max_slow_ring_trc || |
| !phba || !phba->slow_ring_trc) |
| return; |
| |
| index = atomic_inc_return(&phba->slow_ring_trc_cnt) & |
| (lpfc_debugfs_max_slow_ring_trc - 1); |
| dtp = phba->slow_ring_trc + index; |
| dtp->fmt = fmt; |
| dtp->data1 = data1; |
| dtp->data2 = data2; |
| dtp->data3 = data3; |
| dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); |
| dtp->jif = jiffies; |
| #endif |
| return; |
| } |
| |
| #ifdef CONFIG_LPFC_DEBUG_FS |
| /** |
| * lpfc_debugfs_disc_trc_open - Open the discovery trace log. |
| * @inode: The inode pointer that contains a vport pointer. |
| * @file: The file pointer to attach the log output. |
| * |
| * Description: |
| * This routine is the entry point for the debugfs open file operation. It gets |
| * the vport from the i_private field in @inode, allocates the necessary buffer |
| * for the log, fills the buffer from the in-memory log for this vport, and then |
| * returns a pointer to that log in the private_data field in @file. |
| * |
| * Returns: |
| * This function returns zero if successful. On error it will return an negative |
| * error value. |
| **/ |
| static int |
| lpfc_debugfs_disc_trc_open(struct inode *inode, struct file *file) |
| { |
| struct lpfc_vport *vport = inode->i_private; |
| struct lpfc_debug *debug; |
| int size; |
| int rc = -ENOMEM; |
| |
| if (!lpfc_debugfs_max_disc_trc) { |
| rc = -ENOSPC; |
| goto out; |
| } |
| |
| debug = kmalloc(sizeof(*debug), GFP_KERNEL); |
| if (!debug) |
| goto out; |
| |
| /* Round to page boundary */ |
| size = (lpfc_debugfs_max_disc_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); |
| size = PAGE_ALIGN(size); |
| |
| debug->buffer = kmalloc(size, GFP_KERNEL); |
| if (!debug->buffer) { |
| kfree(debug); |
| goto out; |
| } |
| |
| debug->len = lpfc_debugfs_disc_trc_data(vport, debug->buffer, size); |
| file->private_data = debug; |
| |
| rc = 0; |
| out: |
| return rc; |
| } |
| |
| /** |
| * lpfc_debugfs_slow_ring_trc_open - Open the Slow Ring trace log. |
| * @inode: The inode pointer that contains a vport pointer. |
| * @file: The file pointer to attach the log output. |
| * |
| * Description: |
| * This routine is the entry point for the debugfs open file operation. It gets |
| * the vport from the i_private field in @inode, allocates the necessary buffer |
| * for the log, fills the buffer from the in-memory log for this vport, and then |
| * returns a pointer to that log in the private_data field in @file. |
| * |
| * Returns: |
| * This function returns zero if successful. On error it will return an negative |
| * error value. |
| **/ |
| static int |
| lpfc_debugfs_slow_ring_trc_open(struct inode *inode, struct file *file) |
| { |
| struct lpfc_hba *phba = inode->i_private; |
| struct lpfc_debug *debug; |
| int size; |
| int rc = -ENOMEM; |
| |
| if (!lpfc_debugfs_max_slow_ring_trc) { |
| rc = -ENOSPC; |
| goto out; |
| } |
| |
| debug = kmalloc(sizeof(*debug), GFP_KERNEL); |
| if (!debug) |
| goto out; |
| |
| /* Round to page boundary */ |
| size = (lpfc_debugfs_max_slow_ring_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); |
| size = PAGE_ALIGN(size); |
| |
| debug->buffer = kmalloc(size, GFP_KERNEL); |
| if (!debug->buffer) { |
| kfree(debug); |
| goto out; |
| } |
| |
| debug->len = lpfc_debugfs_slow_ring_trc_data(phba, debug->buffer, size); |
| file->private_data = debug; |
| |
| rc = 0; |
| out: |
| return rc; |
| } |
| |
| /** |
| * lpfc_debugfs_hbqinfo_open - Open the hbqinfo debugfs buffer. |
| * @inode: The inode pointer that contains a vport pointer. |
| * @file: The file pointer to attach the log output. |
| * |
| * Description: |
| * This routine is the entry point for the debugfs open file operation. It gets |
| * the vport from the i_private field in @inode, allocates the necessary buffer |
| * for the log, fills the buffer from the in-memory log for this vport, and then |
| * returns a pointer to that log in the private_data field in @file. |
| * |
| * Returns: |
| * This function returns zero if successful. On error it will return an negative |
| * error value. |
| **/ |
| static int |
| lpfc_debugfs_hbqinfo_open(struct inode *inode, struct file *file) |
| { |
| struct lpfc_hba *phba = inode->i_private; |
| struct lpfc_debug *debug; |
| int rc = -ENOMEM; |
| |
| debug = kmalloc(sizeof(*debug), GFP_KERNEL); |
| if (!debug) |
| goto out; |
| |
| /* Round to page boundary */ |
| debug->buffer = kmalloc(LPFC_HBQINFO_SIZE, GFP_KERNEL); |
| if (!debug->buffer) { |
| kfree(debug); |
| goto out; |
| } |
| |
| debug->len = lpfc_debugfs_hbqinfo_data(phba, debug->buffer, |
| LPFC_HBQINFO_SIZE); |
| file->private_data = debug; |
| |
| rc = 0; |
| out: |
| return rc; |
| } |
| |
| /** |
| * lpfc_debugfs_dumpHBASlim_open - Open the Dump HBA SLIM debugfs buffer. |
| * @inode: The inode pointer that contains a vport pointer. |
| * @file: The file pointer to attach the log output. |
| * |
| * Description: |
| * This routine is the entry point for the debugfs open file operation. It gets |
| * the vport from the i_private field in @inode, allocates the necessary buffer |
| * for the log, fills the buffer from the in-memory log for this vport, and then |
| * returns a pointer to that log in the private_data field in @file. |
| * |
| * Returns: |
| * This function returns zero if successful. On error it will return an negative |
| * error value. |
| **/ |
| static int |
| lpfc_debugfs_dumpHBASlim_open(struct inode *inode, struct file *file) |
| { |
| struct lpfc_hba *phba = inode->i_private; |
| struct lpfc_debug *debug; |
| int rc = -ENOMEM; |
| |
| debug = kmalloc(sizeof(*debug), GFP_KERNEL); |
| if (!debug) |
| goto out; |
| |
| /* Round to page boundary */ |
| debug->buffer = kmalloc(LPFC_DUMPHBASLIM_SIZE, GFP_KERNEL); |
| if (!debug->buffer) { |
| kfree(debug); |
| goto out; |
| } |
| |
| debug->len = lpfc_debugfs_dumpHBASlim_data(phba, debug->buffer, |
| LPFC_DUMPHBASLIM_SIZE); |
| file->private_data = debug; |
| |
| rc = 0; |
| out: |
| return rc; |
| } |
| |
| /** |
| * lpfc_debugfs_dumpHostSlim_open - Open the Dump Host SLIM debugfs buffer. |
| * @inode: The inode pointer that contains a vport pointer. |
| * @file: The file pointer to attach the log output. |
| * |
| * Description: |
| * This routine is the entry point for the debugfs open file operation. It gets |
| * the vport from the i_private field in @inode, allocates the necessary buffer |
| * for the log, fills the buffer from the in-memory log for this vport, and then |
| * returns a pointer to that log in the private_data field in @file. |
| * |
| * Returns: |
| * This function returns zero if successful. On error it will return an negative |
| * error value. |
| **/ |
| static int |
| lpfc_debugfs_dumpHostSlim_open(struct inode *inode, struct file *file) |
| { |
| struct lpfc_hba *phba = inode->i_private; |
| struct lpfc_debug *debug; |
| int rc = -ENOMEM; |
| |
| debug = kmalloc(sizeof(*debug), GFP_KERNEL); |
| if (!debug) |
| goto out; |
| |
| /* Round to page boundary */ |
| debug->buffer = kmalloc(LPFC_DUMPHOSTSLIM_SIZE, GFP_KERNEL); |
| if (!debug->buffer) { |
| kfree(debug); |
| goto out; |
| } |
| |
| debug->len = lpfc_debugfs_dumpHostSlim_data(phba, debug->buffer, |
| LPFC_DUMPHOSTSLIM_SIZE); |
| file->private_data = debug; |
| |
| rc = 0; |
| out: |
| return rc; |
| } |
| |
| /** |
| * lpfc_debugfs_nodelist_open - Open the nodelist debugfs file. |
| * @inode: The inode pointer that contains a vport pointer. |
| * @file: The file pointer to attach the log output. |
| * |
| * Description: |
| * This routine is the entry point for the debugfs open file operation. It gets |
| * the vport from the i_private field in @inode, allocates the necessary buffer |
| * for the log, fills the buffer from the in-memory log for this vport, and then |
| * returns a pointer to that log in the private_data field in @file. |
| * |
| * Returns: |
| * This function returns zero if successful. On error it will return an negative |
| * error value. |
| **/ |
| static int |
| lpfc_debugfs_nodelist_open(struct inode *inode, struct file *file) |
| { |
| struct lpfc_vport *vport = inode->i_private; |
| struct lpfc_debug *debug; |
| int rc = -ENOMEM; |
| |
| debug = kmalloc(sizeof(*debug), GFP_KERNEL); |
| if (!debug) |
| goto out; |
| |
| /* Round to page boundary */ |
| debug->buffer = kmalloc(LPFC_NODELIST_SIZE, GFP_KERNEL); |
| if (!debug->buffer) { |
| kfree(debug); |
| goto out; |
| } |
| |
| debug->len = lpfc_debugfs_nodelist_data(vport, debug->buffer, |
| LPFC_NODELIST_SIZE); |
| file->private_data = debug; |
| |
| rc = 0; |
| out: |
| return rc; |
| } |
| |
| /** |
| * lpfc_debugfs_lseek - Seek through a debugfs file. |
| * @file: The file pointer to seek through. |
| * @off: The offset to seek to or the amount to seek by. |
| * @whence: Indicates how to seek. |
| * |
| * Description: |
| * This routine is the entry point for the debugfs lseek file operation. The |
| * @whence parameter indicates whether @off is the offset to directly seek to, |
| * or if it is a value to seek forward or reverse by. This function figures out |
| * what the new offset of the debugfs file will be and assigns that value to the |
| * f_pos field of @file. |
| * |
| * Returns: |
| * This function returns the new offset if successful and returns a negative |
| * error if unable to process the seek. |
| **/ |
| static loff_t |
| lpfc_debugfs_lseek(struct file *file, loff_t off, int whence) |
| { |
| struct lpfc_debug *debug; |
| loff_t pos = -1; |
| |
| debug = file->private_data; |
| |
| switch (whence) { |
| case 0: |
| pos = off; |
| break; |
| case 1: |
| pos = file->f_pos + off; |
| break; |
| case 2: |
| pos = debug->len - off; |
| } |
| return (pos < 0 || pos > debug->len) ? -EINVAL : (file->f_pos = pos); |
| } |
| |
| /** |
| * lpfc_debugfs_read - Read a debugfs file. |
| * @file: The file pointer to read from. |
| * @buf: The buffer to copy the data to. |
| * @nbytes: The number of bytes to read. |
| * @ppos: The position in the file to start reading from. |
| * |
| * Description: |
| * This routine reads data from from the buffer indicated in the private_data |
| * field of @file. It will start reading at @ppos and copy up to @nbytes of |
| * data to @buf. |
| * |
| * Returns: |
| * This function returns the amount of data that was read (this could be less |
| * than @nbytes if the end of the file was reached) or a negative error value. |
| **/ |
| static ssize_t |
| lpfc_debugfs_read(struct file *file, char __user *buf, |
| size_t nbytes, loff_t *ppos) |
| { |
| struct lpfc_debug *debug = file->private_data; |
| return simple_read_from_buffer(buf, nbytes, ppos, debug->buffer, |
| debug->len); |
| } |
| |
| /** |
| * lpfc_debugfs_release - Release the buffer used to store debugfs file data. |
| * @inode: The inode pointer that contains a vport pointer. (unused) |
| * @file: The file pointer that contains the buffer to release. |
| * |
| * Description: |
| * This routine frees the buffer that was allocated when the debugfs file was |
| * opened. |
| * |
| * Returns: |
| * This function returns zero. |
| **/ |
| static int |
| lpfc_debugfs_release(struct inode *inode, struct file *file) |
| { |
| struct lpfc_debug *debug = file->private_data; |
| |
| kfree(debug->buffer); |
| kfree(debug); |
| |
| return 0; |
| } |
| |
| #undef lpfc_debugfs_op_disc_trc |
| static struct file_operations lpfc_debugfs_op_disc_trc = { |
| .owner = THIS_MODULE, |
| .open = lpfc_debugfs_disc_trc_open, |
| .llseek = lpfc_debugfs_lseek, |
| .read = lpfc_debugfs_read, |
| .release = lpfc_debugfs_release, |
| }; |
| |
| #undef lpfc_debugfs_op_nodelist |
| static struct file_operations lpfc_debugfs_op_nodelist = { |
| .owner = THIS_MODULE, |
| .open = lpfc_debugfs_nodelist_open, |
| .llseek = lpfc_debugfs_lseek, |
| .read = lpfc_debugfs_read, |
| .release = lpfc_debugfs_release, |
| }; |
| |
| #undef lpfc_debugfs_op_hbqinfo |
| static struct file_operations lpfc_debugfs_op_hbqinfo = { |
| .owner = THIS_MODULE, |
| .open = lpfc_debugfs_hbqinfo_open, |
| .llseek = lpfc_debugfs_lseek, |
| .read = lpfc_debugfs_read, |
| .release = lpfc_debugfs_release, |
| }; |
| |
| #undef lpfc_debugfs_op_dumpHBASlim |
| static struct file_operations lpfc_debugfs_op_dumpHBASlim = { |
| .owner = THIS_MODULE, |
| .open = lpfc_debugfs_dumpHBASlim_open, |
| .llseek = lpfc_debugfs_lseek, |
| .read = lpfc_debugfs_read, |
| .release = lpfc_debugfs_release, |
| }; |
| |
| #undef lpfc_debugfs_op_dumpHostSlim |
| static struct file_operations lpfc_debugfs_op_dumpHostSlim = { |
| .owner = THIS_MODULE, |
| .open = lpfc_debugfs_dumpHostSlim_open, |
| .llseek = lpfc_debugfs_lseek, |
| .read = lpfc_debugfs_read, |
| .release = lpfc_debugfs_release, |
| }; |
| |
| #undef lpfc_debugfs_op_slow_ring_trc |
| static struct file_operations lpfc_debugfs_op_slow_ring_trc = { |
| .owner = THIS_MODULE, |
| .open = lpfc_debugfs_slow_ring_trc_open, |
| .llseek = lpfc_debugfs_lseek, |
| .read = lpfc_debugfs_read, |
| .release = lpfc_debugfs_release, |
| }; |
| |
| static struct dentry *lpfc_debugfs_root = NULL; |
| static atomic_t lpfc_debugfs_hba_count; |
| #endif |
| |
| /** |
| * lpfc_debugfs_initialize - Initialize debugfs for a vport. |
| * @vport: The vport pointer to initialize. |
| * |
| * Description: |
| * When Debugfs is configured this routine sets up the lpfc debugfs file system. |
| * If not already created, this routine will create the lpfc directory, and |
| * lpfcX directory (for this HBA), and vportX directory for this vport. It will |
| * also create each file used to access lpfc specific debugfs information. |
| **/ |
| inline void |
| lpfc_debugfs_initialize(struct lpfc_vport *vport) |
| { |
| #ifdef CONFIG_LPFC_DEBUG_FS |
| struct lpfc_hba *phba = vport->phba; |
| char name[64]; |
| uint32_t num, i; |
| |
| if (!lpfc_debugfs_enable) |
| return; |
| |
| /* Setup lpfc root directory */ |
| if (!lpfc_debugfs_root) { |
| lpfc_debugfs_root = debugfs_create_dir("lpfc", NULL); |
| atomic_set(&lpfc_debugfs_hba_count, 0); |
| if (!lpfc_debugfs_root) { |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
| "0409 Cannot create debugfs root\n"); |
| goto debug_failed; |
| } |
| } |
| if (!lpfc_debugfs_start_time) |
| lpfc_debugfs_start_time = jiffies; |
| |
| /* Setup lpfcX directory for specific HBA */ |
| snprintf(name, sizeof(name), "lpfc%d", phba->brd_no); |
| if (!phba->hba_debugfs_root) { |
| phba->hba_debugfs_root = |
| debugfs_create_dir(name, lpfc_debugfs_root); |
| if (!phba->hba_debugfs_root) { |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
| "0409 Cannot create debugfs hba\n"); |
| goto debug_failed; |
| } |
| atomic_inc(&lpfc_debugfs_hba_count); |
| atomic_set(&phba->debugfs_vport_count, 0); |
| |
| /* Setup hbqinfo */ |
| snprintf(name, sizeof(name), "hbqinfo"); |
| phba->debug_hbqinfo = |
| debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, |
| phba->hba_debugfs_root, |
| phba, &lpfc_debugfs_op_hbqinfo); |
| if (!phba->debug_hbqinfo) { |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
| "0409 Cannot create debugfs hbqinfo\n"); |
| goto debug_failed; |
| } |
| |
| /* Setup dumpHBASlim */ |
| snprintf(name, sizeof(name), "dumpHBASlim"); |
| phba->debug_dumpHBASlim = |
| debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, |
| phba->hba_debugfs_root, |
| phba, &lpfc_debugfs_op_dumpHBASlim); |
| if (!phba->debug_dumpHBASlim) { |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
| "0409 Cannot create debugfs dumpHBASlim\n"); |
| goto debug_failed; |
| } |
| |
| /* Setup dumpHostSlim */ |
| snprintf(name, sizeof(name), "dumpHostSlim"); |
| phba->debug_dumpHostSlim = |
| debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, |
| phba->hba_debugfs_root, |
| phba, &lpfc_debugfs_op_dumpHostSlim); |
| if (!phba->debug_dumpHostSlim) { |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
| "0409 Cannot create debugfs dumpHostSlim\n"); |
| goto debug_failed; |
| } |
| |
| /* Setup slow ring trace */ |
| if (lpfc_debugfs_max_slow_ring_trc) { |
| num = lpfc_debugfs_max_slow_ring_trc - 1; |
| if (num & lpfc_debugfs_max_slow_ring_trc) { |
| /* Change to be a power of 2 */ |
| num = lpfc_debugfs_max_slow_ring_trc; |
| i = 0; |
| while (num > 1) { |
| num = num >> 1; |
| i++; |
| } |
| lpfc_debugfs_max_slow_ring_trc = (1 << i); |
| printk(KERN_ERR |
| "lpfc_debugfs_max_disc_trc changed to " |
| "%d\n", lpfc_debugfs_max_disc_trc); |
| } |
| } |
| |
| |
| snprintf(name, sizeof(name), "slow_ring_trace"); |
| phba->debug_slow_ring_trc = |
| debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, |
| phba->hba_debugfs_root, |
| phba, &lpfc_debugfs_op_slow_ring_trc); |
| if (!phba->debug_slow_ring_trc) { |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
| "0409 Cannot create debugfs " |
| "slow_ring_trace\n"); |
| goto debug_failed; |
| } |
| if (!phba->slow_ring_trc) { |
| phba->slow_ring_trc = kmalloc( |
| (sizeof(struct lpfc_debugfs_trc) * |
| lpfc_debugfs_max_slow_ring_trc), |
| GFP_KERNEL); |
| if (!phba->slow_ring_trc) { |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
| "0409 Cannot create debugfs " |
| "slow_ring buffer\n"); |
| goto debug_failed; |
| } |
| atomic_set(&phba->slow_ring_trc_cnt, 0); |
| memset(phba->slow_ring_trc, 0, |
| (sizeof(struct lpfc_debugfs_trc) * |
| lpfc_debugfs_max_slow_ring_trc)); |
| } |
| } |
| |
| snprintf(name, sizeof(name), "vport%d", vport->vpi); |
| if (!vport->vport_debugfs_root) { |
| vport->vport_debugfs_root = |
| debugfs_create_dir(name, phba->hba_debugfs_root); |
| if (!vport->vport_debugfs_root) { |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
| "0409 Cant create debugfs"); |
| goto debug_failed; |
| } |
| atomic_inc(&phba->debugfs_vport_count); |
| } |
| |
| if (lpfc_debugfs_max_disc_trc) { |
| num = lpfc_debugfs_max_disc_trc - 1; |
| if (num & lpfc_debugfs_max_disc_trc) { |
| /* Change to be a power of 2 */ |
| num = lpfc_debugfs_max_disc_trc; |
| i = 0; |
| while (num > 1) { |
| num = num >> 1; |
| i++; |
| } |
| lpfc_debugfs_max_disc_trc = (1 << i); |
| printk(KERN_ERR |
| "lpfc_debugfs_max_disc_trc changed to %d\n", |
| lpfc_debugfs_max_disc_trc); |
| } |
| } |
| |
| vport->disc_trc = kzalloc( |
| (sizeof(struct lpfc_debugfs_trc) * lpfc_debugfs_max_disc_trc), |
| GFP_KERNEL); |
| |
| if (!vport->disc_trc) { |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
| "0409 Cannot create debugfs disc trace " |
| "buffer\n"); |
| goto debug_failed; |
| } |
| atomic_set(&vport->disc_trc_cnt, 0); |
| |
| snprintf(name, sizeof(name), "discovery_trace"); |
| vport->debug_disc_trc = |
| debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, |
| vport->vport_debugfs_root, |
| vport, &lpfc_debugfs_op_disc_trc); |
| if (!vport->debug_disc_trc) { |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
| "0409 Cannot create debugfs " |
| "discovery_trace\n"); |
| goto debug_failed; |
| } |
| snprintf(name, sizeof(name), "nodelist"); |
| vport->debug_nodelist = |
| debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, |
| vport->vport_debugfs_root, |
| vport, &lpfc_debugfs_op_nodelist); |
| if (!vport->debug_nodelist) { |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
| "0409 Cant create debugfs nodelist"); |
| goto debug_failed; |
| } |
| debug_failed: |
| return; |
| #endif |
| } |
| |
| /** |
| * lpfc_debugfs_terminate - Tear down debugfs infrastructure for this vport. |
| * @vport: The vport pointer to remove from debugfs. |
| * |
| * Description: |
| * When Debugfs is configured this routine removes debugfs file system elements |
| * that are specific to this vport. It also checks to see if there are any |
| * users left for the debugfs directories associated with the HBA and driver. If |
| * this is the last user of the HBA directory or driver directory then it will |
| * remove those from the debugfs infrastructure as well. |
| **/ |
| inline void |
| lpfc_debugfs_terminate(struct lpfc_vport *vport) |
| { |
| #ifdef CONFIG_LPFC_DEBUG_FS |
| struct lpfc_hba *phba = vport->phba; |
| |
| if (vport->disc_trc) { |
| kfree(vport->disc_trc); |
| vport->disc_trc = NULL; |
| } |
| if (vport->debug_disc_trc) { |
| debugfs_remove(vport->debug_disc_trc); /* discovery_trace */ |
| vport->debug_disc_trc = NULL; |
| } |
| if (vport->debug_nodelist) { |
| debugfs_remove(vport->debug_nodelist); /* nodelist */ |
| vport->debug_nodelist = NULL; |
| } |
| |
| if (vport->vport_debugfs_root) { |
| debugfs_remove(vport->vport_debugfs_root); /* vportX */ |
| vport->vport_debugfs_root = NULL; |
| atomic_dec(&phba->debugfs_vport_count); |
| } |
| if (atomic_read(&phba->debugfs_vport_count) == 0) { |
| |
| if (phba->debug_hbqinfo) { |
| debugfs_remove(phba->debug_hbqinfo); /* hbqinfo */ |
| phba->debug_hbqinfo = NULL; |
| } |
| if (phba->debug_dumpHBASlim) { |
| debugfs_remove(phba->debug_dumpHBASlim); /* HBASlim */ |
| phba->debug_dumpHBASlim = NULL; |
| } |
| if (phba->debug_dumpHostSlim) { |
| debugfs_remove(phba->debug_dumpHostSlim); /* HostSlim */ |
| phba->debug_dumpHostSlim = NULL; |
| } |
| if (phba->slow_ring_trc) { |
| kfree(phba->slow_ring_trc); |
| phba->slow_ring_trc = NULL; |
| } |
| if (phba->debug_slow_ring_trc) { |
| /* slow_ring_trace */ |
| debugfs_remove(phba->debug_slow_ring_trc); |
| phba->debug_slow_ring_trc = NULL; |
| } |
| |
| if (phba->hba_debugfs_root) { |
| debugfs_remove(phba->hba_debugfs_root); /* lpfcX */ |
| phba->hba_debugfs_root = NULL; |
| atomic_dec(&lpfc_debugfs_hba_count); |
| } |
| |
| if (atomic_read(&lpfc_debugfs_hba_count) == 0) { |
| debugfs_remove(lpfc_debugfs_root); /* lpfc */ |
| lpfc_debugfs_root = NULL; |
| } |
| } |
| #endif |
| return; |
| } |