Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Adaptec AAC series RAID controller driver |
| 3 | * (c) Copyright 2001 Red Hat Inc. |
| 4 | * |
| 5 | * based on the old aacraid driver that is.. |
| 6 | * Adaptec aacraid device driver for Linux. |
| 7 | * |
| 8 | * Copyright (c) 2000-2010 Adaptec, Inc. |
| 9 | * 2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com) |
| 10 | * |
| 11 | * This program is free software; you can redistribute it and/or modify |
| 12 | * it under the terms of the GNU General Public License as published by |
| 13 | * the Free Software Foundation; either version 2, or (at your option) |
| 14 | * any later version. |
| 15 | * |
| 16 | * This program is distributed in the hope that it will be useful, |
| 17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 19 | * GNU General Public License for more details. |
| 20 | * |
| 21 | * You should have received a copy of the GNU General Public License |
| 22 | * along with this program; see the file COPYING. If not, write to |
| 23 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
| 24 | * |
| 25 | * Module Name: |
| 26 | * src.c |
| 27 | * |
| 28 | * Abstract: Hardware Device Interface for PMC SRC based controllers |
| 29 | * |
| 30 | */ |
| 31 | |
| 32 | #include <linux/kernel.h> |
| 33 | #include <linux/init.h> |
| 34 | #include <linux/types.h> |
| 35 | #include <linux/pci.h> |
| 36 | #include <linux/spinlock.h> |
| 37 | #include <linux/slab.h> |
| 38 | #include <linux/blkdev.h> |
| 39 | #include <linux/delay.h> |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 40 | #include <linux/completion.h> |
| 41 | #include <linux/time.h> |
| 42 | #include <linux/interrupt.h> |
| 43 | #include <scsi/scsi_host.h> |
| 44 | |
| 45 | #include "aacraid.h" |
| 46 | |
| 47 | static irqreturn_t aac_src_intr_message(int irq, void *dev_id) |
| 48 | { |
| 49 | struct aac_dev *dev = dev_id; |
| 50 | unsigned long bellbits, bellbits_shifted; |
| 51 | int our_interrupt = 0; |
| 52 | int isFastResponse; |
| 53 | u32 index, handle; |
| 54 | |
| 55 | bellbits = src_readl(dev, MUnit.ODR_R); |
| 56 | if (bellbits & PmDoorBellResponseSent) { |
| 57 | bellbits = PmDoorBellResponseSent; |
| 58 | /* handle async. status */ |
Mahesh Rajashekhara | 85d22bb | 2012-07-14 18:18:51 +0530 | [diff] [blame] | 59 | src_writel(dev, MUnit.ODR_C, bellbits); |
| 60 | src_readl(dev, MUnit.ODR_C); |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 61 | our_interrupt = 1; |
| 62 | index = dev->host_rrq_idx; |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 63 | for (;;) { |
| 64 | isFastResponse = 0; |
| 65 | /* remove toggle bit (31) */ |
Ben Collins | b5f1758 | 2012-06-11 16:14:36 -0400 | [diff] [blame] | 66 | handle = le32_to_cpu(dev->host_rrq[index]) & 0x7fffffff; |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 67 | /* check fast response bit (30) */ |
| 68 | if (handle & 0x40000000) |
| 69 | isFastResponse = 1; |
| 70 | handle &= 0x0000ffff; |
| 71 | if (handle == 0) |
| 72 | break; |
| 73 | |
| 74 | aac_intr_normal(dev, handle-1, 0, isFastResponse, NULL); |
| 75 | |
| 76 | dev->host_rrq[index++] = 0; |
| 77 | if (index == dev->scsi_host_ptr->can_queue + |
| 78 | AAC_NUM_MGT_FIB) |
| 79 | index = 0; |
| 80 | dev->host_rrq_idx = index; |
| 81 | } |
| 82 | } else { |
| 83 | bellbits_shifted = (bellbits >> SRC_ODR_SHIFT); |
| 84 | if (bellbits_shifted & DoorBellAifPending) { |
Mahesh Rajashekhara | 85d22bb | 2012-07-14 18:18:51 +0530 | [diff] [blame] | 85 | src_writel(dev, MUnit.ODR_C, bellbits); |
| 86 | src_readl(dev, MUnit.ODR_C); |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 87 | our_interrupt = 1; |
| 88 | /* handle AIF */ |
| 89 | aac_intr_normal(dev, 0, 2, 0, NULL); |
Mahesh Rajashekhara | 1160461 | 2012-02-08 22:51:04 -0800 | [diff] [blame] | 90 | } else if (bellbits_shifted & OUTBOUNDDOORBELL_0) { |
| 91 | unsigned long sflags; |
| 92 | struct list_head *entry; |
| 93 | int send_it = 0; |
Mahesh Rajashekhara | 85d22bb | 2012-07-14 18:18:51 +0530 | [diff] [blame] | 94 | extern int aac_sync_mode; |
| 95 | |
Mahesh Rajashekhara | c5bebd8 | 2013-06-18 17:02:07 +0530 | [diff] [blame] | 96 | src_writel(dev, MUnit.ODR_C, bellbits); |
| 97 | src_readl(dev, MUnit.ODR_C); |
| 98 | |
Mahesh Rajashekhara | 85d22bb | 2012-07-14 18:18:51 +0530 | [diff] [blame] | 99 | if (!aac_sync_mode) { |
| 100 | src_writel(dev, MUnit.ODR_C, bellbits); |
| 101 | src_readl(dev, MUnit.ODR_C); |
| 102 | our_interrupt = 1; |
| 103 | } |
Mahesh Rajashekhara | 1160461 | 2012-02-08 22:51:04 -0800 | [diff] [blame] | 104 | |
| 105 | if (dev->sync_fib) { |
| 106 | our_interrupt = 1; |
| 107 | if (dev->sync_fib->callback) |
| 108 | dev->sync_fib->callback(dev->sync_fib->callback_data, |
| 109 | dev->sync_fib); |
| 110 | spin_lock_irqsave(&dev->sync_fib->event_lock, sflags); |
| 111 | if (dev->sync_fib->flags & FIB_CONTEXT_FLAG_WAIT) { |
| 112 | dev->management_fib_count--; |
| 113 | up(&dev->sync_fib->event_wait); |
| 114 | } |
| 115 | spin_unlock_irqrestore(&dev->sync_fib->event_lock, sflags); |
| 116 | spin_lock_irqsave(&dev->sync_lock, sflags); |
| 117 | if (!list_empty(&dev->sync_fib_list)) { |
| 118 | entry = dev->sync_fib_list.next; |
| 119 | dev->sync_fib = list_entry(entry, struct fib, fiblink); |
| 120 | list_del(entry); |
| 121 | send_it = 1; |
| 122 | } else { |
| 123 | dev->sync_fib = NULL; |
| 124 | } |
| 125 | spin_unlock_irqrestore(&dev->sync_lock, sflags); |
| 126 | if (send_it) { |
| 127 | aac_adapter_sync_cmd(dev, SEND_SYNCHRONOUS_FIB, |
| 128 | (u32)dev->sync_fib->hw_fib_pa, 0, 0, 0, 0, 0, |
| 129 | NULL, NULL, NULL, NULL, NULL); |
| 130 | } |
| 131 | } |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 132 | } |
| 133 | } |
| 134 | |
| 135 | if (our_interrupt) { |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 136 | return IRQ_HANDLED; |
| 137 | } |
| 138 | return IRQ_NONE; |
| 139 | } |
| 140 | |
| 141 | /** |
| 142 | * aac_src_disable_interrupt - Disable interrupts |
| 143 | * @dev: Adapter |
| 144 | */ |
| 145 | |
| 146 | static void aac_src_disable_interrupt(struct aac_dev *dev) |
| 147 | { |
| 148 | src_writel(dev, MUnit.OIMR, dev->OIMR = 0xffffffff); |
| 149 | } |
| 150 | |
| 151 | /** |
| 152 | * aac_src_enable_interrupt_message - Enable interrupts |
| 153 | * @dev: Adapter |
| 154 | */ |
| 155 | |
| 156 | static void aac_src_enable_interrupt_message(struct aac_dev *dev) |
| 157 | { |
| 158 | src_writel(dev, MUnit.OIMR, dev->OIMR = 0xfffffff8); |
| 159 | } |
| 160 | |
| 161 | /** |
| 162 | * src_sync_cmd - send a command and wait |
| 163 | * @dev: Adapter |
| 164 | * @command: Command to execute |
| 165 | * @p1: first parameter |
| 166 | * @ret: adapter status |
| 167 | * |
| 168 | * This routine will send a synchronous command to the adapter and wait |
| 169 | * for its completion. |
| 170 | */ |
| 171 | |
| 172 | static int src_sync_cmd(struct aac_dev *dev, u32 command, |
| 173 | u32 p1, u32 p2, u32 p3, u32 p4, u32 p5, u32 p6, |
| 174 | u32 *status, u32 * r1, u32 * r2, u32 * r3, u32 * r4) |
| 175 | { |
| 176 | unsigned long start; |
| 177 | int ok; |
| 178 | |
| 179 | /* |
| 180 | * Write the command into Mailbox 0 |
| 181 | */ |
| 182 | writel(command, &dev->IndexRegs->Mailbox[0]); |
| 183 | /* |
| 184 | * Write the parameters into Mailboxes 1 - 6 |
| 185 | */ |
| 186 | writel(p1, &dev->IndexRegs->Mailbox[1]); |
| 187 | writel(p2, &dev->IndexRegs->Mailbox[2]); |
| 188 | writel(p3, &dev->IndexRegs->Mailbox[3]); |
| 189 | writel(p4, &dev->IndexRegs->Mailbox[4]); |
| 190 | |
| 191 | /* |
| 192 | * Clear the synch command doorbell to start on a clean slate. |
| 193 | */ |
| 194 | src_writel(dev, MUnit.ODR_C, OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT); |
| 195 | |
| 196 | /* |
| 197 | * Disable doorbell interrupts |
| 198 | */ |
| 199 | src_writel(dev, MUnit.OIMR, dev->OIMR = 0xffffffff); |
| 200 | |
| 201 | /* |
| 202 | * Force the completion of the mask register write before issuing |
| 203 | * the interrupt. |
| 204 | */ |
| 205 | src_readl(dev, MUnit.OIMR); |
| 206 | |
| 207 | /* |
| 208 | * Signal that there is a new synch command |
| 209 | */ |
| 210 | src_writel(dev, MUnit.IDR, INBOUNDDOORBELL_0 << SRC_IDR_SHIFT); |
| 211 | |
Mahesh Rajashekhara | 1160461 | 2012-02-08 22:51:04 -0800 | [diff] [blame] | 212 | if (!dev->sync_mode || command != SEND_SYNCHRONOUS_FIB) { |
| 213 | ok = 0; |
| 214 | start = jiffies; |
| 215 | |
| 216 | /* |
| 217 | * Wait up to 5 minutes |
| 218 | */ |
| 219 | while (time_before(jiffies, start+300*HZ)) { |
| 220 | udelay(5); /* Delay 5 microseconds to let Mon960 get info. */ |
| 221 | /* |
| 222 | * Mon960 will set doorbell0 bit when it has completed the command. |
| 223 | */ |
| 224 | if ((src_readl(dev, MUnit.ODR_R) >> SRC_ODR_SHIFT) & OUTBOUNDDOORBELL_0) { |
| 225 | /* |
| 226 | * Clear the doorbell. |
| 227 | */ |
| 228 | src_writel(dev, MUnit.ODR_C, OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT); |
| 229 | ok = 1; |
| 230 | break; |
| 231 | } |
| 232 | /* |
| 233 | * Yield the processor in case we are slow |
| 234 | */ |
| 235 | msleep(1); |
| 236 | } |
| 237 | if (unlikely(ok != 1)) { |
| 238 | /* |
| 239 | * Restore interrupt mask even though we timed out |
| 240 | */ |
| 241 | aac_adapter_enable_int(dev); |
| 242 | return -ETIMEDOUT; |
| 243 | } |
| 244 | /* |
| 245 | * Pull the synch status from Mailbox 0. |
| 246 | */ |
| 247 | if (status) |
| 248 | *status = readl(&dev->IndexRegs->Mailbox[0]); |
| 249 | if (r1) |
| 250 | *r1 = readl(&dev->IndexRegs->Mailbox[1]); |
| 251 | if (r2) |
| 252 | *r2 = readl(&dev->IndexRegs->Mailbox[2]); |
| 253 | if (r3) |
| 254 | *r3 = readl(&dev->IndexRegs->Mailbox[3]); |
| 255 | if (r4) |
| 256 | *r4 = readl(&dev->IndexRegs->Mailbox[4]); |
| 257 | |
| 258 | /* |
| 259 | * Clear the synch command doorbell. |
| 260 | */ |
| 261 | src_writel(dev, MUnit.ODR_C, OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT); |
| 262 | } |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 263 | |
| 264 | /* |
Mahesh Rajashekhara | 1160461 | 2012-02-08 22:51:04 -0800 | [diff] [blame] | 265 | * Restore interrupt mask |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 266 | */ |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 267 | aac_adapter_enable_int(dev); |
| 268 | return 0; |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 269 | } |
| 270 | |
| 271 | /** |
| 272 | * aac_src_interrupt_adapter - interrupt adapter |
| 273 | * @dev: Adapter |
| 274 | * |
| 275 | * Send an interrupt to the i960 and breakpoint it. |
| 276 | */ |
| 277 | |
| 278 | static void aac_src_interrupt_adapter(struct aac_dev *dev) |
| 279 | { |
| 280 | src_sync_cmd(dev, BREAKPOINT_REQUEST, |
| 281 | 0, 0, 0, 0, 0, 0, |
| 282 | NULL, NULL, NULL, NULL, NULL); |
| 283 | } |
| 284 | |
| 285 | /** |
| 286 | * aac_src_notify_adapter - send an event to the adapter |
| 287 | * @dev: Adapter |
| 288 | * @event: Event to send |
| 289 | * |
| 290 | * Notify the i960 that something it probably cares about has |
| 291 | * happened. |
| 292 | */ |
| 293 | |
| 294 | static void aac_src_notify_adapter(struct aac_dev *dev, u32 event) |
| 295 | { |
| 296 | switch (event) { |
| 297 | |
| 298 | case AdapNormCmdQue: |
| 299 | src_writel(dev, MUnit.ODR_C, |
| 300 | INBOUNDDOORBELL_1 << SRC_ODR_SHIFT); |
| 301 | break; |
| 302 | case HostNormRespNotFull: |
| 303 | src_writel(dev, MUnit.ODR_C, |
| 304 | INBOUNDDOORBELL_4 << SRC_ODR_SHIFT); |
| 305 | break; |
| 306 | case AdapNormRespQue: |
| 307 | src_writel(dev, MUnit.ODR_C, |
| 308 | INBOUNDDOORBELL_2 << SRC_ODR_SHIFT); |
| 309 | break; |
| 310 | case HostNormCmdNotFull: |
| 311 | src_writel(dev, MUnit.ODR_C, |
| 312 | INBOUNDDOORBELL_3 << SRC_ODR_SHIFT); |
| 313 | break; |
| 314 | case FastIo: |
| 315 | src_writel(dev, MUnit.ODR_C, |
| 316 | INBOUNDDOORBELL_6 << SRC_ODR_SHIFT); |
| 317 | break; |
| 318 | case AdapPrintfDone: |
| 319 | src_writel(dev, MUnit.ODR_C, |
| 320 | INBOUNDDOORBELL_5 << SRC_ODR_SHIFT); |
| 321 | break; |
| 322 | default: |
| 323 | BUG(); |
| 324 | break; |
| 325 | } |
| 326 | } |
| 327 | |
| 328 | /** |
| 329 | * aac_src_start_adapter - activate adapter |
| 330 | * @dev: Adapter |
| 331 | * |
| 332 | * Start up processing on an i960 based AAC adapter |
| 333 | */ |
| 334 | |
| 335 | static void aac_src_start_adapter(struct aac_dev *dev) |
| 336 | { |
| 337 | struct aac_init *init; |
| 338 | |
Mahesh Rajashekhara | 85d22bb | 2012-07-14 18:18:51 +0530 | [diff] [blame] | 339 | /* reset host_rrq_idx first */ |
| 340 | dev->host_rrq_idx = 0; |
| 341 | |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 342 | init = dev->init; |
| 343 | init->HostElapsedSeconds = cpu_to_le32(get_seconds()); |
| 344 | |
| 345 | /* We can only use a 32 bit address here */ |
| 346 | src_sync_cmd(dev, INIT_STRUCT_BASE_ADDRESS, (u32)(ulong)dev->init_pa, |
| 347 | 0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL); |
| 348 | } |
| 349 | |
| 350 | /** |
| 351 | * aac_src_check_health |
| 352 | * @dev: device to check if healthy |
| 353 | * |
| 354 | * Will attempt to determine if the specified adapter is alive and |
| 355 | * capable of handling requests, returning 0 if alive. |
| 356 | */ |
| 357 | static int aac_src_check_health(struct aac_dev *dev) |
| 358 | { |
| 359 | u32 status = src_readl(dev, MUnit.OMR); |
| 360 | |
| 361 | /* |
| 362 | * Check to see if the board failed any self tests. |
| 363 | */ |
| 364 | if (unlikely(status & SELF_TEST_FAILED)) |
| 365 | return -1; |
| 366 | |
| 367 | /* |
| 368 | * Check to see if the board panic'd. |
| 369 | */ |
| 370 | if (unlikely(status & KERNEL_PANIC)) |
| 371 | return (status >> 16) & 0xFF; |
| 372 | /* |
| 373 | * Wait for the adapter to be up and running. |
| 374 | */ |
| 375 | if (unlikely(!(status & KERNEL_UP_AND_RUNNING))) |
| 376 | return -3; |
| 377 | /* |
| 378 | * Everything is OK |
| 379 | */ |
| 380 | return 0; |
| 381 | } |
| 382 | |
| 383 | /** |
| 384 | * aac_src_deliver_message |
| 385 | * @fib: fib to issue |
| 386 | * |
| 387 | * Will send a fib, returning 0 if successful. |
| 388 | */ |
| 389 | static int aac_src_deliver_message(struct fib *fib) |
| 390 | { |
| 391 | struct aac_dev *dev = fib->dev; |
| 392 | struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue]; |
| 393 | unsigned long qflags; |
| 394 | u32 fibsize; |
Ben Collins | b5f1758 | 2012-06-11 16:14:36 -0400 | [diff] [blame] | 395 | dma_addr_t address; |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 396 | struct aac_fib_xporthdr *pFibX; |
Ben Collins | b5f1758 | 2012-06-11 16:14:36 -0400 | [diff] [blame] | 397 | u16 hdr_size = le16_to_cpu(fib->hw_fib_va->header.Size); |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 398 | |
| 399 | spin_lock_irqsave(q->lock, qflags); |
| 400 | q->numpending++; |
| 401 | spin_unlock_irqrestore(q->lock, qflags); |
| 402 | |
Mahesh Rajashekhara | 85d22bb | 2012-07-14 18:18:51 +0530 | [diff] [blame] | 403 | if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE2) { |
| 404 | /* Calculate the amount to the fibsize bits */ |
| 405 | fibsize = (hdr_size + 127) / 128 - 1; |
| 406 | if (fibsize > (ALIGN32 - 1)) |
| 407 | return -EMSGSIZE; |
| 408 | /* New FIB header, 32-bit */ |
| 409 | address = fib->hw_fib_pa; |
| 410 | fib->hw_fib_va->header.StructType = FIB_MAGIC2; |
| 411 | fib->hw_fib_va->header.SenderFibAddress = (u32)address; |
| 412 | fib->hw_fib_va->header.u.TimeStamp = 0; |
Paul Bolle | 98f99a8 | 2013-02-21 12:39:44 +0100 | [diff] [blame] | 413 | BUG_ON(upper_32_bits(address) != 0L); |
Mahesh Rajashekhara | 85d22bb | 2012-07-14 18:18:51 +0530 | [diff] [blame] | 414 | address |= fibsize; |
| 415 | } else { |
| 416 | /* Calculate the amount to the fibsize bits */ |
| 417 | fibsize = (sizeof(struct aac_fib_xporthdr) + hdr_size + 127) / 128 - 1; |
| 418 | if (fibsize > (ALIGN32 - 1)) |
| 419 | return -EMSGSIZE; |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 420 | |
Mahesh Rajashekhara | 85d22bb | 2012-07-14 18:18:51 +0530 | [diff] [blame] | 421 | /* Fill XPORT header */ |
| 422 | pFibX = (void *)fib->hw_fib_va - sizeof(struct aac_fib_xporthdr); |
| 423 | pFibX->Handle = cpu_to_le32(fib->hw_fib_va->header.Handle); |
| 424 | pFibX->HostAddress = cpu_to_le64(fib->hw_fib_pa); |
| 425 | pFibX->Size = cpu_to_le32(hdr_size); |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 426 | |
Mahesh Rajashekhara | 85d22bb | 2012-07-14 18:18:51 +0530 | [diff] [blame] | 427 | /* |
| 428 | * The xport header has been 32-byte aligned for us so that fibsize |
| 429 | * can be masked out of this address by hardware. -- BenC |
| 430 | */ |
| 431 | address = fib->hw_fib_pa - sizeof(struct aac_fib_xporthdr); |
| 432 | if (address & (ALIGN32 - 1)) |
| 433 | return -EINVAL; |
| 434 | address |= fibsize; |
| 435 | } |
| 436 | |
Paul Bolle | 98f99a8 | 2013-02-21 12:39:44 +0100 | [diff] [blame] | 437 | src_writel(dev, MUnit.IQ_H, upper_32_bits(address) & 0xffffffff); |
Ben Collins | b5f1758 | 2012-06-11 16:14:36 -0400 | [diff] [blame] | 438 | src_writel(dev, MUnit.IQ_L, address & 0xffffffff); |
| 439 | |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 440 | return 0; |
| 441 | } |
| 442 | |
| 443 | /** |
| 444 | * aac_src_ioremap |
| 445 | * @size: mapping resize request |
| 446 | * |
| 447 | */ |
| 448 | static int aac_src_ioremap(struct aac_dev *dev, u32 size) |
| 449 | { |
| 450 | if (!size) { |
Tomas Henzl | 7155250 | 2012-03-29 17:23:46 +0200 | [diff] [blame] | 451 | iounmap(dev->regs.src.bar1); |
| 452 | dev->regs.src.bar1 = NULL; |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 453 | iounmap(dev->regs.src.bar0); |
Mahesh Rajashekhara | 1160461 | 2012-02-08 22:51:04 -0800 | [diff] [blame] | 454 | dev->base = dev->regs.src.bar0 = NULL; |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 455 | return 0; |
| 456 | } |
| 457 | dev->regs.src.bar1 = ioremap(pci_resource_start(dev->pdev, 2), |
| 458 | AAC_MIN_SRC_BAR1_SIZE); |
| 459 | dev->base = NULL; |
| 460 | if (dev->regs.src.bar1 == NULL) |
| 461 | return -1; |
Ben Collins | ff08784 | 2012-06-11 14:05:02 -0400 | [diff] [blame] | 462 | dev->base = dev->regs.src.bar0 = ioremap(dev->base_start, size); |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 463 | if (dev->base == NULL) { |
| 464 | iounmap(dev->regs.src.bar1); |
| 465 | dev->regs.src.bar1 = NULL; |
| 466 | return -1; |
| 467 | } |
| 468 | dev->IndexRegs = &((struct src_registers __iomem *) |
Mahesh Rajashekhara | 1160461 | 2012-02-08 22:51:04 -0800 | [diff] [blame] | 469 | dev->base)->u.tupelo.IndexRegs; |
| 470 | return 0; |
| 471 | } |
| 472 | |
| 473 | /** |
| 474 | * aac_srcv_ioremap |
| 475 | * @size: mapping resize request |
| 476 | * |
| 477 | */ |
| 478 | static int aac_srcv_ioremap(struct aac_dev *dev, u32 size) |
| 479 | { |
| 480 | if (!size) { |
| 481 | iounmap(dev->regs.src.bar0); |
| 482 | dev->base = dev->regs.src.bar0 = NULL; |
| 483 | return 0; |
| 484 | } |
Ben Collins | ff08784 | 2012-06-11 14:05:02 -0400 | [diff] [blame] | 485 | dev->base = dev->regs.src.bar0 = ioremap(dev->base_start, size); |
Mahesh Rajashekhara | 1160461 | 2012-02-08 22:51:04 -0800 | [diff] [blame] | 486 | if (dev->base == NULL) |
| 487 | return -1; |
| 488 | dev->IndexRegs = &((struct src_registers __iomem *) |
| 489 | dev->base)->u.denali.IndexRegs; |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 490 | return 0; |
| 491 | } |
| 492 | |
| 493 | static int aac_src_restart_adapter(struct aac_dev *dev, int bled) |
| 494 | { |
| 495 | u32 var, reset_mask; |
| 496 | |
| 497 | if (bled >= 0) { |
| 498 | if (bled) |
| 499 | printk(KERN_ERR "%s%d: adapter kernel panic'd %x.\n", |
| 500 | dev->name, dev->id, bled); |
| 501 | bled = aac_adapter_sync_cmd(dev, IOP_RESET_ALWAYS, |
| 502 | 0, 0, 0, 0, 0, 0, &var, &reset_mask, NULL, NULL, NULL); |
| 503 | if (bled || (var != 0x00000001)) |
Mahesh Rajashekhara | 1160461 | 2012-02-08 22:51:04 -0800 | [diff] [blame] | 504 | return -EINVAL; |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 505 | if (dev->supplement_adapter_info.SupportedOptions2 & |
| 506 | AAC_OPTION_DOORBELL_RESET) { |
| 507 | src_writel(dev, MUnit.IDR, reset_mask); |
| 508 | msleep(5000); /* Delay 5 seconds */ |
| 509 | } |
| 510 | } |
| 511 | |
| 512 | if (src_readl(dev, MUnit.OMR) & KERNEL_PANIC) |
| 513 | return -ENODEV; |
| 514 | |
| 515 | if (startup_timeout < 300) |
| 516 | startup_timeout = 300; |
| 517 | |
| 518 | return 0; |
| 519 | } |
| 520 | |
| 521 | /** |
| 522 | * aac_src_select_comm - Select communications method |
| 523 | * @dev: Adapter |
| 524 | * @comm: communications method |
| 525 | */ |
| 526 | int aac_src_select_comm(struct aac_dev *dev, int comm) |
| 527 | { |
| 528 | switch (comm) { |
| 529 | case AAC_COMM_MESSAGE: |
| 530 | dev->a_ops.adapter_enable_int = aac_src_enable_interrupt_message; |
| 531 | dev->a_ops.adapter_intr = aac_src_intr_message; |
| 532 | dev->a_ops.adapter_deliver = aac_src_deliver_message; |
| 533 | break; |
| 534 | default: |
| 535 | return 1; |
| 536 | } |
| 537 | return 0; |
| 538 | } |
| 539 | |
| 540 | /** |
| 541 | * aac_src_init - initialize an Cardinal Frey Bar card |
| 542 | * @dev: device to configure |
| 543 | * |
| 544 | */ |
| 545 | |
| 546 | int aac_src_init(struct aac_dev *dev) |
| 547 | { |
| 548 | unsigned long start; |
| 549 | unsigned long status; |
| 550 | int restart = 0; |
| 551 | int instance = dev->id; |
| 552 | const char *name = dev->name; |
| 553 | |
| 554 | dev->a_ops.adapter_ioremap = aac_src_ioremap; |
| 555 | dev->a_ops.adapter_comm = aac_src_select_comm; |
| 556 | |
| 557 | dev->base_size = AAC_MIN_SRC_BAR0_SIZE; |
| 558 | if (aac_adapter_ioremap(dev, dev->base_size)) { |
| 559 | printk(KERN_WARNING "%s: unable to map adapter.\n", name); |
| 560 | goto error_iounmap; |
| 561 | } |
| 562 | |
| 563 | /* Failure to reset here is an option ... */ |
| 564 | dev->a_ops.adapter_sync_cmd = src_sync_cmd; |
| 565 | dev->a_ops.adapter_enable_int = aac_src_disable_interrupt; |
| 566 | if ((aac_reset_devices || reset_devices) && |
| 567 | !aac_src_restart_adapter(dev, 0)) |
| 568 | ++restart; |
| 569 | /* |
| 570 | * Check to see if the board panic'd while booting. |
| 571 | */ |
| 572 | status = src_readl(dev, MUnit.OMR); |
| 573 | if (status & KERNEL_PANIC) { |
| 574 | if (aac_src_restart_adapter(dev, aac_src_check_health(dev))) |
| 575 | goto error_iounmap; |
| 576 | ++restart; |
| 577 | } |
| 578 | /* |
| 579 | * Check to see if the board failed any self tests. |
| 580 | */ |
| 581 | status = src_readl(dev, MUnit.OMR); |
| 582 | if (status & SELF_TEST_FAILED) { |
| 583 | printk(KERN_ERR "%s%d: adapter self-test failed.\n", |
| 584 | dev->name, instance); |
| 585 | goto error_iounmap; |
| 586 | } |
| 587 | /* |
| 588 | * Check to see if the monitor panic'd while booting. |
| 589 | */ |
| 590 | if (status & MONITOR_PANIC) { |
| 591 | printk(KERN_ERR "%s%d: adapter monitor panic.\n", |
| 592 | dev->name, instance); |
| 593 | goto error_iounmap; |
| 594 | } |
| 595 | start = jiffies; |
| 596 | /* |
| 597 | * Wait for the adapter to be up and running. Wait up to 3 minutes |
| 598 | */ |
| 599 | while (!((status = src_readl(dev, MUnit.OMR)) & |
| 600 | KERNEL_UP_AND_RUNNING)) { |
| 601 | if ((restart && |
| 602 | (status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC))) || |
| 603 | time_after(jiffies, start+HZ*startup_timeout)) { |
| 604 | printk(KERN_ERR "%s%d: adapter kernel failed to start, init status = %lx.\n", |
| 605 | dev->name, instance, status); |
| 606 | goto error_iounmap; |
| 607 | } |
| 608 | if (!restart && |
| 609 | ((status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC)) || |
| 610 | time_after(jiffies, start + HZ * |
| 611 | ((startup_timeout > 60) |
| 612 | ? (startup_timeout - 60) |
| 613 | : (startup_timeout / 2))))) { |
| 614 | if (likely(!aac_src_restart_adapter(dev, |
| 615 | aac_src_check_health(dev)))) |
| 616 | start = jiffies; |
| 617 | ++restart; |
| 618 | } |
| 619 | msleep(1); |
| 620 | } |
| 621 | if (restart && aac_commit) |
| 622 | aac_commit = 1; |
| 623 | /* |
| 624 | * Fill in the common function dispatch table. |
| 625 | */ |
| 626 | dev->a_ops.adapter_interrupt = aac_src_interrupt_adapter; |
| 627 | dev->a_ops.adapter_disable_int = aac_src_disable_interrupt; |
| 628 | dev->a_ops.adapter_notify = aac_src_notify_adapter; |
| 629 | dev->a_ops.adapter_sync_cmd = src_sync_cmd; |
| 630 | dev->a_ops.adapter_check_health = aac_src_check_health; |
| 631 | dev->a_ops.adapter_restart = aac_src_restart_adapter; |
| 632 | |
| 633 | /* |
| 634 | * First clear out all interrupts. Then enable the one's that we |
| 635 | * can handle. |
| 636 | */ |
| 637 | aac_adapter_comm(dev, AAC_COMM_MESSAGE); |
| 638 | aac_adapter_disable_int(dev); |
| 639 | src_writel(dev, MUnit.ODR_C, 0xffffffff); |
| 640 | aac_adapter_enable_int(dev); |
| 641 | |
| 642 | if (aac_init_adapter(dev) == NULL) |
| 643 | goto error_iounmap; |
| 644 | if (dev->comm_interface != AAC_COMM_MESSAGE_TYPE1) |
| 645 | goto error_iounmap; |
| 646 | |
| 647 | dev->msi = aac_msi && !pci_enable_msi(dev->pdev); |
| 648 | |
| 649 | if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr, |
Michael Opdenacker | 4909cc2 | 2014-03-05 06:09:41 +0100 | [diff] [blame] | 650 | IRQF_SHARED, "aacraid", dev) < 0) { |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 651 | |
| 652 | if (dev->msi) |
| 653 | pci_disable_msi(dev->pdev); |
| 654 | |
| 655 | printk(KERN_ERR "%s%d: Interrupt unavailable.\n", |
| 656 | name, instance); |
| 657 | goto error_iounmap; |
| 658 | } |
| 659 | dev->dbg_base = pci_resource_start(dev->pdev, 2); |
| 660 | dev->dbg_base_mapped = dev->regs.src.bar1; |
| 661 | dev->dbg_size = AAC_MIN_SRC_BAR1_SIZE; |
| 662 | |
| 663 | aac_adapter_enable_int(dev); |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 664 | |
Mahesh Rajashekhara | 1160461 | 2012-02-08 22:51:04 -0800 | [diff] [blame] | 665 | if (!dev->sync_mode) { |
| 666 | /* |
| 667 | * Tell the adapter that all is configured, and it can |
| 668 | * start accepting requests |
| 669 | */ |
| 670 | aac_src_start_adapter(dev); |
| 671 | } |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 672 | return 0; |
| 673 | |
| 674 | error_iounmap: |
| 675 | |
| 676 | return -1; |
| 677 | } |
Mahesh Rajashekhara | 1160461 | 2012-02-08 22:51:04 -0800 | [diff] [blame] | 678 | |
| 679 | /** |
| 680 | * aac_srcv_init - initialize an SRCv card |
| 681 | * @dev: device to configure |
| 682 | * |
| 683 | */ |
| 684 | |
| 685 | int aac_srcv_init(struct aac_dev *dev) |
| 686 | { |
| 687 | unsigned long start; |
| 688 | unsigned long status; |
| 689 | int restart = 0; |
| 690 | int instance = dev->id; |
| 691 | const char *name = dev->name; |
| 692 | |
| 693 | dev->a_ops.adapter_ioremap = aac_srcv_ioremap; |
| 694 | dev->a_ops.adapter_comm = aac_src_select_comm; |
| 695 | |
| 696 | dev->base_size = AAC_MIN_SRCV_BAR0_SIZE; |
| 697 | if (aac_adapter_ioremap(dev, dev->base_size)) { |
| 698 | printk(KERN_WARNING "%s: unable to map adapter.\n", name); |
| 699 | goto error_iounmap; |
| 700 | } |
| 701 | |
| 702 | /* Failure to reset here is an option ... */ |
| 703 | dev->a_ops.adapter_sync_cmd = src_sync_cmd; |
| 704 | dev->a_ops.adapter_enable_int = aac_src_disable_interrupt; |
| 705 | if ((aac_reset_devices || reset_devices) && |
| 706 | !aac_src_restart_adapter(dev, 0)) |
| 707 | ++restart; |
| 708 | /* |
Mahesh Rajashekhara | 2c10cd4 | 2013-03-19 12:37:26 +0530 | [diff] [blame] | 709 | * Check to see if flash update is running. |
| 710 | * Wait for the adapter to be up and running. Wait up to 5 minutes |
| 711 | */ |
| 712 | status = src_readl(dev, MUnit.OMR); |
| 713 | if (status & FLASH_UPD_PENDING) { |
| 714 | start = jiffies; |
| 715 | do { |
| 716 | status = src_readl(dev, MUnit.OMR); |
| 717 | if (time_after(jiffies, start+HZ*FWUPD_TIMEOUT)) { |
| 718 | printk(KERN_ERR "%s%d: adapter flash update failed.\n", |
| 719 | dev->name, instance); |
| 720 | goto error_iounmap; |
| 721 | } |
| 722 | } while (!(status & FLASH_UPD_SUCCESS) && |
| 723 | !(status & FLASH_UPD_FAILED)); |
| 724 | /* Delay 10 seconds. |
| 725 | * Because right now FW is doing a soft reset, |
| 726 | * do not read scratch pad register at this time |
| 727 | */ |
| 728 | ssleep(10); |
| 729 | } |
| 730 | /* |
Mahesh Rajashekhara | 1160461 | 2012-02-08 22:51:04 -0800 | [diff] [blame] | 731 | * Check to see if the board panic'd while booting. |
| 732 | */ |
| 733 | status = src_readl(dev, MUnit.OMR); |
| 734 | if (status & KERNEL_PANIC) { |
| 735 | if (aac_src_restart_adapter(dev, aac_src_check_health(dev))) |
| 736 | goto error_iounmap; |
| 737 | ++restart; |
| 738 | } |
| 739 | /* |
| 740 | * Check to see if the board failed any self tests. |
| 741 | */ |
| 742 | status = src_readl(dev, MUnit.OMR); |
| 743 | if (status & SELF_TEST_FAILED) { |
| 744 | printk(KERN_ERR "%s%d: adapter self-test failed.\n", dev->name, instance); |
| 745 | goto error_iounmap; |
| 746 | } |
| 747 | /* |
| 748 | * Check to see if the monitor panic'd while booting. |
| 749 | */ |
| 750 | if (status & MONITOR_PANIC) { |
| 751 | printk(KERN_ERR "%s%d: adapter monitor panic.\n", dev->name, instance); |
| 752 | goto error_iounmap; |
| 753 | } |
| 754 | start = jiffies; |
| 755 | /* |
| 756 | * Wait for the adapter to be up and running. Wait up to 3 minutes |
| 757 | */ |
Mahesh Rajashekhara | 2c10cd4 | 2013-03-19 12:37:26 +0530 | [diff] [blame] | 758 | while (!((status = src_readl(dev, MUnit.OMR)) & |
| 759 | KERNEL_UP_AND_RUNNING) || |
| 760 | status == 0xffffffff) { |
Mahesh Rajashekhara | 1160461 | 2012-02-08 22:51:04 -0800 | [diff] [blame] | 761 | if ((restart && |
| 762 | (status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC))) || |
| 763 | time_after(jiffies, start+HZ*startup_timeout)) { |
| 764 | printk(KERN_ERR "%s%d: adapter kernel failed to start, init status = %lx.\n", |
| 765 | dev->name, instance, status); |
| 766 | goto error_iounmap; |
| 767 | } |
| 768 | if (!restart && |
| 769 | ((status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC)) || |
| 770 | time_after(jiffies, start + HZ * |
| 771 | ((startup_timeout > 60) |
| 772 | ? (startup_timeout - 60) |
| 773 | : (startup_timeout / 2))))) { |
| 774 | if (likely(!aac_src_restart_adapter(dev, aac_src_check_health(dev)))) |
| 775 | start = jiffies; |
| 776 | ++restart; |
| 777 | } |
| 778 | msleep(1); |
| 779 | } |
| 780 | if (restart && aac_commit) |
| 781 | aac_commit = 1; |
| 782 | /* |
| 783 | * Fill in the common function dispatch table. |
| 784 | */ |
| 785 | dev->a_ops.adapter_interrupt = aac_src_interrupt_adapter; |
| 786 | dev->a_ops.adapter_disable_int = aac_src_disable_interrupt; |
| 787 | dev->a_ops.adapter_notify = aac_src_notify_adapter; |
| 788 | dev->a_ops.adapter_sync_cmd = src_sync_cmd; |
| 789 | dev->a_ops.adapter_check_health = aac_src_check_health; |
| 790 | dev->a_ops.adapter_restart = aac_src_restart_adapter; |
| 791 | |
| 792 | /* |
| 793 | * First clear out all interrupts. Then enable the one's that we |
| 794 | * can handle. |
| 795 | */ |
| 796 | aac_adapter_comm(dev, AAC_COMM_MESSAGE); |
| 797 | aac_adapter_disable_int(dev); |
| 798 | src_writel(dev, MUnit.ODR_C, 0xffffffff); |
| 799 | aac_adapter_enable_int(dev); |
| 800 | |
| 801 | if (aac_init_adapter(dev) == NULL) |
| 802 | goto error_iounmap; |
Mahesh Rajashekhara | 85d22bb | 2012-07-14 18:18:51 +0530 | [diff] [blame] | 803 | if (dev->comm_interface != AAC_COMM_MESSAGE_TYPE2) |
Mahesh Rajashekhara | 1160461 | 2012-02-08 22:51:04 -0800 | [diff] [blame] | 804 | goto error_iounmap; |
| 805 | dev->msi = aac_msi && !pci_enable_msi(dev->pdev); |
| 806 | if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr, |
Michael Opdenacker | 4909cc2 | 2014-03-05 06:09:41 +0100 | [diff] [blame] | 807 | IRQF_SHARED, "aacraid", dev) < 0) { |
Mahesh Rajashekhara | 1160461 | 2012-02-08 22:51:04 -0800 | [diff] [blame] | 808 | if (dev->msi) |
| 809 | pci_disable_msi(dev->pdev); |
| 810 | printk(KERN_ERR "%s%d: Interrupt unavailable.\n", |
| 811 | name, instance); |
| 812 | goto error_iounmap; |
| 813 | } |
Ben Collins | ff08784 | 2012-06-11 14:05:02 -0400 | [diff] [blame] | 814 | dev->dbg_base = dev->base_start; |
Mahesh Rajashekhara | 1160461 | 2012-02-08 22:51:04 -0800 | [diff] [blame] | 815 | dev->dbg_base_mapped = dev->base; |
| 816 | dev->dbg_size = dev->base_size; |
| 817 | |
| 818 | aac_adapter_enable_int(dev); |
| 819 | |
| 820 | if (!dev->sync_mode) { |
| 821 | /* |
| 822 | * Tell the adapter that all is configured, and it can |
| 823 | * start accepting requests |
| 824 | */ |
| 825 | aac_src_start_adapter(dev); |
| 826 | } |
| 827 | return 0; |
| 828 | |
| 829 | error_iounmap: |
| 830 | |
| 831 | return -1; |
| 832 | } |
| 833 | |