drivers/scsi/aacraid/src.c

   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. ([email protected])
  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>
  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 */
  59                 our_interrupt = 1;
  60                 index = dev->host_rrq_idx;
  61                 if (dev->host_rrq[index] == 0) {
  62                         u32 old_index = index;
  63                         /* adjust index */
  64                         do {
  65                                 index++;
  66                                 if (index == dev->scsi_host_ptr->can_queue +
  67                                                         AAC_NUM_MGT_FIB)
  68                                         index = 0;
  69                                 if (dev->host_rrq[index] != 0)
  70                                         break;
  71                         } while (index != old_index);
  72                         dev->host_rrq_idx = index;
  73                 }
  74                 for (;;) {
  75                         isFastResponse = 0;
  76                         /* remove toggle bit (31) */
  77                         handle = (dev->host_rrq[index] & 0x7fffffff);
  78                         /* check fast response bit (30) */
  79                         if (handle & 0x40000000)
  80                                 isFastResponse = 1;
  81                         handle &= 0x0000ffff;
  82                         if (handle == 0)
  83                                 break;
  84
  85                         aac_intr_normal(dev, handle-1, 0, isFastResponse, NULL);
  86
  87                         dev->host_rrq[index++] = 0;
  88                         if (index == dev->scsi_host_ptr->can_queue +
  89                                                 AAC_NUM_MGT_FIB)
  90                                 index = 0;
  91                         dev->host_rrq_idx = index;
  92                 }
  93         } else {
  94                 bellbits_shifted = (bellbits >> SRC_ODR_SHIFT);
  95                 if (bellbits_shifted & DoorBellAifPending) {
  96                         our_interrupt = 1;
  97                         /* handle AIF */
  98                         aac_intr_normal(dev, 0, 2, 0, NULL);
  99                 } else if (bellbits_shifted & OUTBOUNDDOORBELL_0) {
 100                         unsigned long sflags;
 101                         struct list_head *entry;
 102                         int send_it = 0;
 103
 104                         if (dev->sync_fib) {
 105                                 our_interrupt = 1;
 106                                 if (dev->sync_fib->callback)
 107                                         dev->sync_fib->callback(dev->sync_fib->callback_data,
 108                                                 dev->sync_fib);
 109                                 spin_lock_irqsave(&dev->sync_fib->event_lock, sflags);
 110                                 if (dev->sync_fib->flags & FIB_CONTEXT_FLAG_WAIT) {
 111                                         dev->management_fib_count--;
 112                                         up(&dev->sync_fib->event_wait);
 113                                 }
 114                                 spin_unlock_irqrestore(&dev->sync_fib->event_lock, sflags);
 115                                 spin_lock_irqsave(&dev->sync_lock, sflags);
 116                                 if (!list_empty(&dev->sync_fib_list)) {
 117                                         entry = dev->sync_fib_list.next;
 118                                         dev->sync_fib = list_entry(entry, struct fib, fiblink);
 119                                         list_del(entry);
 120                                         send_it = 1;
 121                                 } else {
 122                                         dev->sync_fib = NULL;
 123                                 }
 124                                 spin_unlock_irqrestore(&dev->sync_lock, sflags);
 125                                 if (send_it) {
 126                                         aac_adapter_sync_cmd(dev, SEND_SYNCHRONOUS_FIB,
 127                                                 (u32)dev->sync_fib->hw_fib_pa, 0, 0, 0, 0, 0,
 128                                                 NULL, NULL, NULL, NULL, NULL);
 129                                 }
 130                         }
 131                 }
 132         }
 133
 134         if (our_interrupt) {
 135                 src_writel(dev, MUnit.ODR_C, bellbits);
 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
 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         }
 263
 264         /*
 265          *      Restore interrupt mask
 266          */
 267         aac_adapter_enable_int(dev);
 268         return 0;
 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
 339         init = dev->init;
 340         init->HostElapsedSeconds = cpu_to_le32(get_seconds());
 341
 342         /* We can only use a 32 bit address here */
 343         src_sync_cmd(dev, INIT_STRUCT_BASE_ADDRESS, (u32)(ulong)dev->init_pa,
 344           0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL);
 345 }
 346
 347 /**
 348  *      aac_src_check_health
 349  *      @dev: device to check if healthy
 350  *
 351  *      Will attempt to determine if the specified adapter is alive and
 352  *      capable of handling requests, returning 0 if alive.
 353  */
 354 static int aac_src_check_health(struct aac_dev *dev)
 355 {
 356         u32 status = src_readl(dev, MUnit.OMR);
 357
 358         /*
 359          *      Check to see if the board failed any self tests.
 360          */
 361         if (unlikely(status & SELF_TEST_FAILED))
 362                 return -1;
 363
 364         /*
 365          *      Check to see if the board panic'd.
 366          */
 367         if (unlikely(status & KERNEL_PANIC))
 368                 return (status >> 16) & 0xFF;
 369         /*
 370          *      Wait for the adapter to be up and running.
 371          */
 372         if (unlikely(!(status & KERNEL_UP_AND_RUNNING)))
 373                 return -3;
 374         /*
 375          *      Everything is OK
 376          */
 377         return 0;
 378 }
 379
 380 /**
 381  *      aac_src_deliver_message
 382  *      @fib: fib to issue
 383  *
 384  *      Will send a fib, returning 0 if successful.
 385  */
 386 static int aac_src_deliver_message(struct fib *fib)
 387 {
 388         struct aac_dev *dev = fib->dev;
 389         struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue];
 390         unsigned long qflags;
 391         u32 fibsize;
 392         u64 address;
 393         struct aac_fib_xporthdr *pFibX;
 394
 395         spin_lock_irqsave(q->lock, qflags);
 396         q->numpending++;
 397         spin_unlock_irqrestore(q->lock, qflags);
 398
 399         /* Calculate the amount to the fibsize bits */
 400         fibsize = (sizeof(struct aac_fib_xporthdr) +
 401                 fib->hw_fib_va->header.Size + 127) / 128 - 1;
 402         if (fibsize > (ALIGN32 - 1))
 403                 fibsize = ALIGN32 - 1;
 404
 405     /* Fill XPORT header */
 406         pFibX = (struct aac_fib_xporthdr *)
 407                 ((unsigned char *)fib->hw_fib_va -
 408                 sizeof(struct aac_fib_xporthdr));
 409         pFibX->Handle = fib->hw_fib_va->header.SenderData + 1;
 410         pFibX->HostAddress = fib->hw_fib_pa;
 411         pFibX->Size = fib->hw_fib_va->header.Size;
 412         address = fib->hw_fib_pa - (u64)sizeof(struct aac_fib_xporthdr);
 413
 414         src_writel(dev, MUnit.IQ_H, (u32)(address >> 32));
 415         src_writel(dev, MUnit.IQ_L, (u32)(address & 0xffffffff) + fibsize);
 416         return 0;
 417 }
 418
 419 /**
 420  *      aac_src_ioremap
 421  *      @size: mapping resize request
 422  *
 423  */
 424 static int aac_src_ioremap(struct aac_dev *dev, u32 size)
 425 {
 426         if (!size) {
 427                 iounmap(dev->regs.src.bar1);
 428                 dev->regs.src.bar1 = NULL;
 429                 iounmap(dev->regs.src.bar0);
 430                 dev->base = dev->regs.src.bar0 = NULL;
 431                 return 0;
 432         }
 433         dev->regs.src.bar1 = ioremap(pci_resource_start(dev->pdev, 2),
 434                 AAC_MIN_SRC_BAR1_SIZE);
 435         dev->base = NULL;
 436         if (dev->regs.src.bar1 == NULL)
 437                 return -1;
 438         dev->base = dev->regs.src.bar0 = ioremap(dev->scsi_host_ptr->base,
 439                                 size);
 440         if (dev->base == NULL) {
 441                 iounmap(dev->regs.src.bar1);
 442                 dev->regs.src.bar1 = NULL;
 443                 return -1;
 444         }
 445         dev->IndexRegs = &((struct src_registers __iomem *)
 446                 dev->base)->u.tupelo.IndexRegs;
 447         return 0;
 448 }
 449
 450 /**
 451  *  aac_srcv_ioremap
 452  *      @size: mapping resize request
 453  *
 454  */
 455 static int aac_srcv_ioremap(struct aac_dev *dev, u32 size)
 456 {
 457         if (!size) {
 458                 iounmap(dev->regs.src.bar0);
 459                 dev->base = dev->regs.src.bar0 = NULL;
 460                 return 0;
 461         }
 462         dev->base = dev->regs.src.bar0 = ioremap(dev->scsi_host_ptr->base, size);
 463         if (dev->base == NULL)
 464                 return -1;
 465         dev->IndexRegs = &((struct src_registers __iomem *)
 466                 dev->base)->u.denali.IndexRegs;
 467         return 0;
 468 }
 469
 470 static int aac_src_restart_adapter(struct aac_dev *dev, int bled)
 471 {
 472         u32 var, reset_mask;
 473
 474         if (bled >= 0) {
 475                 if (bled)
 476                         printk(KERN_ERR "%s%d: adapter kernel panic'd %x.\n",
 477                                 dev->name, dev->id, bled);
 478                 bled = aac_adapter_sync_cmd(dev, IOP_RESET_ALWAYS,
 479                         0, 0, 0, 0, 0, 0, &var, &reset_mask, NULL, NULL, NULL);
 480                         if (bled || (var != 0x00000001))
 481                                 return -EINVAL;
 482                 if (dev->supplement_adapter_info.SupportedOptions2 &
 483                         AAC_OPTION_DOORBELL_RESET) {
 484                         src_writel(dev, MUnit.IDR, reset_mask);
 485                         msleep(5000); /* Delay 5 seconds */
 486                 }
 487         }
 488
 489         if (src_readl(dev, MUnit.OMR) & KERNEL_PANIC)
 490                 return -ENODEV;
 491
 492         if (startup_timeout < 300)
 493                 startup_timeout = 300;
 494
 495         return 0;
 496 }
 497
 498 /**
 499  *      aac_src_select_comm     -       Select communications method
 500  *      @dev: Adapter
 501  *      @comm: communications method
 502  */
 503 int aac_src_select_comm(struct aac_dev *dev, int comm)
 504 {
 505         switch (comm) {
 506         case AAC_COMM_MESSAGE:
 507                 dev->a_ops.adapter_enable_int = aac_src_enable_interrupt_message;
 508                 dev->a_ops.adapter_intr = aac_src_intr_message;
 509                 dev->a_ops.adapter_deliver = aac_src_deliver_message;
 510                 break;
 511         default:
 512                 return 1;
 513         }
 514         return 0;
 515 }
 516
 517 /**
 518  *  aac_src_init        -       initialize an Cardinal Frey Bar card
 519  *  @dev: device to configure
 520  *
 521  */
 522
 523 int aac_src_init(struct aac_dev *dev)
 524 {
 525         unsigned long start;
 526         unsigned long status;
 527         int restart = 0;
 528         int instance = dev->id;
 529         const char *name = dev->name;
 530
 531         dev->a_ops.adapter_ioremap = aac_src_ioremap;
 532         dev->a_ops.adapter_comm = aac_src_select_comm;
 533
 534         dev->base_size = AAC_MIN_SRC_BAR0_SIZE;
 535         if (aac_adapter_ioremap(dev, dev->base_size)) {
 536                 printk(KERN_WARNING "%s: unable to map adapter.\n", name);
 537                 goto error_iounmap;
 538         }
 539
 540         /* Failure to reset here is an option ... */
 541         dev->a_ops.adapter_sync_cmd = src_sync_cmd;
 542         dev->a_ops.adapter_enable_int = aac_src_disable_interrupt;
 543         if ((aac_reset_devices || reset_devices) &&
 544                 !aac_src_restart_adapter(dev, 0))
 545                 ++restart;
 546         /*
 547          *      Check to see if the board panic'd while booting.
 548          */
 549         status = src_readl(dev, MUnit.OMR);
 550         if (status & KERNEL_PANIC) {
 551                 if (aac_src_restart_adapter(dev, aac_src_check_health(dev)))
 552                         goto error_iounmap;
 553                 ++restart;
 554         }
 555         /*
 556          *      Check to see if the board failed any self tests.
 557          */
 558         status = src_readl(dev, MUnit.OMR);
 559         if (status & SELF_TEST_FAILED) {
 560                 printk(KERN_ERR "%s%d: adapter self-test failed.\n",
 561                         dev->name, instance);
 562                 goto error_iounmap;
 563         }
 564         /*
 565          *      Check to see if the monitor panic'd while booting.
 566          */
 567         if (status & MONITOR_PANIC) {
 568                 printk(KERN_ERR "%s%d: adapter monitor panic.\n",
 569                         dev->name, instance);
 570                 goto error_iounmap;
 571         }
 572         start = jiffies;
 573         /*
 574          *      Wait for the adapter to be up and running. Wait up to 3 minutes
 575          */
 576         while (!((status = src_readl(dev, MUnit.OMR)) &
 577                 KERNEL_UP_AND_RUNNING)) {
 578                 if ((restart &&
 579                   (status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC))) ||
 580                   time_after(jiffies, start+HZ*startup_timeout)) {
 581                         printk(KERN_ERR "%s%d: adapter kernel failed to start, init status = %lx.\n",
 582                                         dev->name, instance, status);
 583                         goto error_iounmap;
 584                 }
 585                 if (!restart &&
 586                   ((status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC)) ||
 587                   time_after(jiffies, start + HZ *
 588                   ((startup_timeout > 60)
 589                     ? (startup_timeout - 60)
 590                     : (startup_timeout / 2))))) {
 591                         if (likely(!aac_src_restart_adapter(dev,
 592                             aac_src_check_health(dev))))
 593                                 start = jiffies;
 594                         ++restart;
 595                 }
 596                 msleep(1);
 597         }
 598         if (restart && aac_commit)
 599                 aac_commit = 1;
 600         /*
 601          *      Fill in the common function dispatch table.
 602          */
 603         dev->a_ops.adapter_interrupt = aac_src_interrupt_adapter;
 604         dev->a_ops.adapter_disable_int = aac_src_disable_interrupt;
 605         dev->a_ops.adapter_notify = aac_src_notify_adapter;
 606         dev->a_ops.adapter_sync_cmd = src_sync_cmd;
 607         dev->a_ops.adapter_check_health = aac_src_check_health;
 608         dev->a_ops.adapter_restart = aac_src_restart_adapter;
 609
 610         /*
 611          *      First clear out all interrupts.  Then enable the one's that we
 612          *      can handle.
 613          */
 614         aac_adapter_comm(dev, AAC_COMM_MESSAGE);
 615         aac_adapter_disable_int(dev);
 616         src_writel(dev, MUnit.ODR_C, 0xffffffff);
 617         aac_adapter_enable_int(dev);
 618
 619         if (aac_init_adapter(dev) == NULL)
 620                 goto error_iounmap;
 621         if (dev->comm_interface != AAC_COMM_MESSAGE_TYPE1)
 622                 goto error_iounmap;
 623
 624         dev->msi = aac_msi && !pci_enable_msi(dev->pdev);
 625
 626         if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr,
 627                         IRQF_SHARED|IRQF_DISABLED, "aacraid", dev) < 0) {
 628
 629                 if (dev->msi)
 630                         pci_disable_msi(dev->pdev);
 631
 632                 printk(KERN_ERR "%s%d: Interrupt unavailable.\n",
 633                         name, instance);
 634                 goto error_iounmap;
 635         }
 636         dev->dbg_base = pci_resource_start(dev->pdev, 2);
 637         dev->dbg_base_mapped = dev->regs.src.bar1;
 638         dev->dbg_size = AAC_MIN_SRC_BAR1_SIZE;
 639
 640         aac_adapter_enable_int(dev);
 641
 642         if (!dev->sync_mode) {
 643                 /*
 644                  * Tell the adapter that all is configured, and it can
 645                  * start accepting requests
 646                  */
 647                 aac_src_start_adapter(dev);
 648         }
 649         return 0;
 650
 651 error_iounmap:
 652
 653         return -1;
 654 }
 655
 656 /**
 657  *  aac_srcv_init       -       initialize an SRCv card
 658  *  @dev: device to configure
 659  *
 660  */
 661
 662 int aac_srcv_init(struct aac_dev *dev)
 663 {
 664         unsigned long start;
 665         unsigned long status;
 666         int restart = 0;
 667         int instance = dev->id;
 668         const char *name = dev->name;
 669
 670         dev->a_ops.adapter_ioremap = aac_srcv_ioremap;
 671         dev->a_ops.adapter_comm = aac_src_select_comm;
 672
 673         dev->base_size = AAC_MIN_SRCV_BAR0_SIZE;
 674         if (aac_adapter_ioremap(dev, dev->base_size)) {
 675                 printk(KERN_WARNING "%s: unable to map adapter.\n", name);
 676                 goto error_iounmap;
 677         }
 678
 679         /* Failure to reset here is an option ... */
 680         dev->a_ops.adapter_sync_cmd = src_sync_cmd;
 681         dev->a_ops.adapter_enable_int = aac_src_disable_interrupt;
 682         if ((aac_reset_devices || reset_devices) &&
 683                 !aac_src_restart_adapter(dev, 0))
 684                 ++restart;
 685         /*
 686          *      Check to see if the board panic'd while booting.
 687          */
 688         status = src_readl(dev, MUnit.OMR);
 689         if (status & KERNEL_PANIC) {
 690                 if (aac_src_restart_adapter(dev, aac_src_check_health(dev)))
 691                         goto error_iounmap;
 692                 ++restart;
 693         }
 694         /*
 695          *      Check to see if the board failed any self tests.
 696          */
 697         status = src_readl(dev, MUnit.OMR);
 698         if (status & SELF_TEST_FAILED) {
 699                 printk(KERN_ERR "%s%d: adapter self-test failed.\n", dev->name, instance);
 700                 goto error_iounmap;
 701         }
 702         /*
 703          *      Check to see if the monitor panic'd while booting.
 704          */
 705         if (status & MONITOR_PANIC) {
 706                 printk(KERN_ERR "%s%d: adapter monitor panic.\n", dev->name, instance);
 707                 goto error_iounmap;
 708         }
 709         start = jiffies;
 710         /*
 711          *      Wait for the adapter to be up and running. Wait up to 3 minutes
 712          */
 713         while (!((status = src_readl(dev, MUnit.OMR)) & KERNEL_UP_AND_RUNNING)) {
 714                 if ((restart &&
 715                   (status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC))) ||
 716                   time_after(jiffies, start+HZ*startup_timeout)) {
 717                         printk(KERN_ERR "%s%d: adapter kernel failed to start, init status = %lx.\n",
 718                                         dev->name, instance, status);
 719                         goto error_iounmap;
 720                 }
 721                 if (!restart &&
 722                   ((status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC)) ||
 723                   time_after(jiffies, start + HZ *
 724                   ((startup_timeout > 60)
 725                     ? (startup_timeout - 60)
 726                     : (startup_timeout / 2))))) {
 727                         if (likely(!aac_src_restart_adapter(dev, aac_src_check_health(dev))))
 728                                 start = jiffies;
 729                         ++restart;
 730                 }
 731                 msleep(1);
 732         }
 733         if (restart && aac_commit)
 734                 aac_commit = 1;
 735         /*
 736          *      Fill in the common function dispatch table.
 737          */
 738         dev->a_ops.adapter_interrupt = aac_src_interrupt_adapter;
 739         dev->a_ops.adapter_disable_int = aac_src_disable_interrupt;
 740         dev->a_ops.adapter_notify = aac_src_notify_adapter;
 741         dev->a_ops.adapter_sync_cmd = src_sync_cmd;
 742         dev->a_ops.adapter_check_health = aac_src_check_health;
 743         dev->a_ops.adapter_restart = aac_src_restart_adapter;
 744
 745         /*
 746          *      First clear out all interrupts.  Then enable the one's that we
 747          *      can handle.
 748          */
 749         aac_adapter_comm(dev, AAC_COMM_MESSAGE);
 750         aac_adapter_disable_int(dev);
 751         src_writel(dev, MUnit.ODR_C, 0xffffffff);
 752         aac_adapter_enable_int(dev);
 753
 754         if (aac_init_adapter(dev) == NULL)
 755                 goto error_iounmap;
 756         if (dev->comm_interface != AAC_COMM_MESSAGE_TYPE1)
 757                 goto error_iounmap;
 758         dev->msi = aac_msi && !pci_enable_msi(dev->pdev);
 759         if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr,
 760                 IRQF_SHARED|IRQF_DISABLED, "aacraid", dev) < 0) {
 761                 if (dev->msi)
 762                         pci_disable_msi(dev->pdev);
 763                 printk(KERN_ERR "%s%d: Interrupt unavailable.\n",
 764                         name, instance);
 765                 goto error_iounmap;
 766         }
 767         dev->dbg_base = dev->scsi_host_ptr->base;
 768         dev->dbg_base_mapped = dev->base;
 769         dev->dbg_size = dev->base_size;
 770
 771         aac_adapter_enable_int(dev);
 772
 773         if (!dev->sync_mode) {
 774                 /*
 775                  * Tell the adapter that all is configured, and it can
 776                  * start accepting requests
 777                  */
 778                 aac_src_start_adapter(dev);
 779         }
 780         return 0;
 781
 782 error_iounmap:
 783
 784         return -1;
 785 }
 786