kernel/drivers/scsi/aacraid/rx.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. (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  *  rx.c
  27  *
  28  * Abstract: Hardware miniport for Drawbridge specific hardware functions.
  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/blkdev.h>
  38 #include <linux/delay.h>
  39 #include <linux/completion.h>
  40 #include <linux/time.h>
  41 #include <linux/interrupt.h>
  42
  43 #include <scsi/scsi_host.h>
  44
  45 #include "aacraid.h"
  46
  47 static irqreturn_t aac_rx_intr_producer(int irq, void *dev_id)
  48 {
  49         struct aac_dev *dev = dev_id;
  50         unsigned long bellbits;
  51         u8 intstat = rx_readb(dev, MUnit.OISR);
  52
  53         /*
  54          *      Read mask and invert because drawbridge is reversed.
  55          *      This allows us to only service interrupts that have
  56          *      been enabled.
  57          *      Check to see if this is our interrupt.  If it isn't just return
  58          */
  59         if (likely(intstat & ~(dev->OIMR))) {
  60                 bellbits = rx_readl(dev, OutboundDoorbellReg);
  61                 if (unlikely(bellbits & DoorBellPrintfReady)) {
  62                         aac_printf(dev, readl (&dev->IndexRegs->Mailbox[5]));
  63                         rx_writel(dev, MUnit.ODR,DoorBellPrintfReady);
  64                         rx_writel(dev, InboundDoorbellReg,DoorBellPrintfDone);
  65                 }
  66                 else if (unlikely(bellbits & DoorBellAdapterNormCmdReady)) {
  67                         rx_writel(dev, MUnit.ODR, DoorBellAdapterNormCmdReady);
  68                         aac_command_normal(&dev->queues->queue[HostNormCmdQueue]);
  69                 }
  70                 else if (likely(bellbits & DoorBellAdapterNormRespReady)) {
  71                         rx_writel(dev, MUnit.ODR,DoorBellAdapterNormRespReady);
  72                         aac_response_normal(&dev->queues->queue[HostNormRespQueue]);
  73                 }
  74                 else if (unlikely(bellbits & DoorBellAdapterNormCmdNotFull)) {
  75                         rx_writel(dev, MUnit.ODR, DoorBellAdapterNormCmdNotFull);
  76                 }
  77                 else if (unlikely(bellbits & DoorBellAdapterNormRespNotFull)) {
  78                         rx_writel(dev, MUnit.ODR, DoorBellAdapterNormCmdNotFull);
  79                         rx_writel(dev, MUnit.ODR, DoorBellAdapterNormRespNotFull);
  80                 }
  81                 return IRQ_HANDLED;
  82         }
  83         return IRQ_NONE;
  84 }
  85
  86 static irqreturn_t aac_rx_intr_message(int irq, void *dev_id)
  87 {
  88         int isAif, isFastResponse, isSpecial;
  89         struct aac_dev *dev = dev_id;
  90         u32 Index = rx_readl(dev, MUnit.OutboundQueue);
  91         if (unlikely(Index == 0xFFFFFFFFL))
  92                 Index = rx_readl(dev, MUnit.OutboundQueue);
  93         if (likely(Index != 0xFFFFFFFFL)) {
  94                 do {
  95                         isAif = isFastResponse = isSpecial = 0;
  96                         if (Index & 0x00000002L) {
  97                                 isAif = 1;
  98                                 if (Index == 0xFFFFFFFEL)
  99                                         isSpecial = 1;
 100                                 Index &= ~0x00000002L;
 101                         } else {
 102                                 if (Index & 0x00000001L)
 103                                         isFastResponse = 1;
 104                                 Index >>= 2;
 105                         }
 106                         if (!isSpecial) {
 107                                 if (unlikely(aac_intr_normal(dev,
 108                                                 Index, isAif,
 109                                                 isFastResponse, NULL))) {
 110                                         rx_writel(dev,
 111                                                 MUnit.OutboundQueue,
 112                                                 Index);
 113                                         rx_writel(dev,
 114                                                 MUnit.ODR,
 115                                                 DoorBellAdapterNormRespReady);
 116                                 }
 117                         }
 118                         Index = rx_readl(dev, MUnit.OutboundQueue);
 119                 } while (Index != 0xFFFFFFFFL);
 120                 return IRQ_HANDLED;
 121         }
 122         return IRQ_NONE;
 123 }
 124
 125 /**
 126  *      aac_rx_disable_interrupt        -       Disable interrupts
 127  *      @dev: Adapter
 128  */
 129
 130 static void aac_rx_disable_interrupt(struct aac_dev *dev)
 131 {
 132         rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xff);
 133 }
 134
 135 /**
 136  *      aac_rx_enable_interrupt_producer        -       Enable interrupts
 137  *      @dev: Adapter
 138  */
 139
 140 static void aac_rx_enable_interrupt_producer(struct aac_dev *dev)
 141 {
 142         rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xfb);
 143 }
 144
 145 /**
 146  *      aac_rx_enable_interrupt_message -       Enable interrupts
 147  *      @dev: Adapter
 148  */
 149
 150 static void aac_rx_enable_interrupt_message(struct aac_dev *dev)
 151 {
 152         rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xf7);
 153 }
 154
 155 /**
 156  *      rx_sync_cmd     -       send a command and wait
 157  *      @dev: Adapter
 158  *      @command: Command to execute
 159  *      @p1: first parameter
 160  *      @ret: adapter status
 161  *
 162  *      This routine will send a synchronous command to the adapter and wait
 163  *      for its completion.
 164  */
 165
 166 static int rx_sync_cmd(struct aac_dev *dev, u32 command,
 167         u32 p1, u32 p2, u32 p3, u32 p4, u32 p5, u32 p6,
 168         u32 *status, u32 * r1, u32 * r2, u32 * r3, u32 * r4)
 169 {
 170         unsigned long start;
 171         int ok;
 172         /*
 173          *      Write the command into Mailbox 0
 174          */
 175         writel(command, &dev->IndexRegs->Mailbox[0]);
 176         /*
 177          *      Write the parameters into Mailboxes 1 - 6
 178          */
 179         writel(p1, &dev->IndexRegs->Mailbox[1]);
 180         writel(p2, &dev->IndexRegs->Mailbox[2]);
 181         writel(p3, &dev->IndexRegs->Mailbox[3]);
 182         writel(p4, &dev->IndexRegs->Mailbox[4]);
 183         /*
 184          *      Clear the synch command doorbell to start on a clean slate.
 185          */
 186         rx_writel(dev, OutboundDoorbellReg, OUTBOUNDDOORBELL_0);
 187         /*
 188          *      Disable doorbell interrupts
 189          */
 190         rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xff);
 191         /*
 192          *      Force the completion of the mask register write before issuing
 193          *      the interrupt.
 194          */
 195         rx_readb (dev, MUnit.OIMR);
 196         /*
 197          *      Signal that there is a new synch command
 198          */
 199         rx_writel(dev, InboundDoorbellReg, INBOUNDDOORBELL_0);
 200
 201         ok = 0;
 202         start = jiffies;
 203
 204         /*
 205          *      Wait up to 30 seconds
 206          */
 207         while (time_before(jiffies, start+30*HZ))
 208         {
 209                 udelay(5);      /* Delay 5 microseconds to let Mon960 get info. */
 210                 /*
 211                  *      Mon960 will set doorbell0 bit when it has completed the command.
 212                  */
 213                 if (rx_readl(dev, OutboundDoorbellReg) & OUTBOUNDDOORBELL_0) {
 214                         /*
 215                          *      Clear the doorbell.
 216                          */
 217                         rx_writel(dev, OutboundDoorbellReg, OUTBOUNDDOORBELL_0);
 218                         ok = 1;
 219                         break;
 220                 }
 221                 /*
 222                  *      Yield the processor in case we are slow
 223                  */
 224                 msleep(1);
 225         }
 226         if (unlikely(ok != 1)) {
 227                 /*
 228                  *      Restore interrupt mask even though we timed out
 229                  */
 230                 aac_adapter_enable_int(dev);
 231                 return -ETIMEDOUT;
 232         }
 233         /*
 234          *      Pull the synch status from Mailbox 0.
 235          */
 236         if (status)
 237                 *status = readl(&dev->IndexRegs->Mailbox[0]);
 238         if (r1)
 239                 *r1 = readl(&dev->IndexRegs->Mailbox[1]);
 240         if (r2)
 241                 *r2 = readl(&dev->IndexRegs->Mailbox[2]);
 242         if (r3)
 243                 *r3 = readl(&dev->IndexRegs->Mailbox[3]);
 244         if (r4)
 245                 *r4 = readl(&dev->IndexRegs->Mailbox[4]);
 246         /*
 247          *      Clear the synch command doorbell.
 248          */
 249         rx_writel(dev, OutboundDoorbellReg, OUTBOUNDDOORBELL_0);
 250         /*
 251          *      Restore interrupt mask
 252          */
 253         aac_adapter_enable_int(dev);
 254         return 0;
 255
 256 }
 257
 258 /**
 259  *      aac_rx_interrupt_adapter        -       interrupt adapter
 260  *      @dev: Adapter
 261  *
 262  *      Send an interrupt to the i960 and breakpoint it.
 263  */
 264
 265 static void aac_rx_interrupt_adapter(struct aac_dev *dev)
 266 {
 267         rx_sync_cmd(dev, BREAKPOINT_REQUEST, 0, 0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL);
 268 }
 269
 270 /**
 271  *      aac_rx_notify_adapter           -       send an event to the adapter
 272  *      @dev: Adapter
 273  *      @event: Event to send
 274  *
 275  *      Notify the i960 that something it probably cares about has
 276  *      happened.
 277  */
 278
 279 static void aac_rx_notify_adapter(struct aac_dev *dev, u32 event)
 280 {
 281         switch (event) {
 282
 283         case AdapNormCmdQue:
 284                 rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_1);
 285                 break;
 286         case HostNormRespNotFull:
 287                 rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_4);
 288                 break;
 289         case AdapNormRespQue:
 290                 rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_2);
 291                 break;
 292         case HostNormCmdNotFull:
 293                 rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_3);
 294                 break;
 295         case HostShutdown:
 296                 break;
 297         case FastIo:
 298                 rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_6);
 299                 break;
 300         case AdapPrintfDone:
 301                 rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_5);
 302                 break;
 303         default:
 304                 BUG();
 305                 break;
 306         }
 307 }
 308
 309 /**
 310  *      aac_rx_start_adapter            -       activate adapter
 311  *      @dev:   Adapter
 312  *
 313  *      Start up processing on an i960 based AAC adapter
 314  */
 315
 316 static void aac_rx_start_adapter(struct aac_dev *dev)
 317 {
 318         struct aac_init *init;
 319
 320         init = dev->init;
 321         init->HostElapsedSeconds = cpu_to_le32(get_seconds());
 322         // We can only use a 32 bit address here
 323         rx_sync_cmd(dev, INIT_STRUCT_BASE_ADDRESS, (u32)(ulong)dev->init_pa,
 324           0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL);
 325 }
 326
 327 /**
 328  *      aac_rx_check_health
 329  *      @dev: device to check if healthy
 330  *
 331  *      Will attempt to determine if the specified adapter is alive and
 332  *      capable of handling requests, returning 0 if alive.
 333  */
 334 static int aac_rx_check_health(struct aac_dev *dev)
 335 {
 336         u32 status = rx_readl(dev, MUnit.OMRx[0]);
 337
 338         /*
 339          *      Check to see if the board failed any self tests.
 340          */
 341         if (unlikely(status & SELF_TEST_FAILED))
 342                 return -1;
 343         /*
 344          *      Check to see if the board panic'd.
 345          */
 346         if (unlikely(status & KERNEL_PANIC)) {
 347                 char * buffer;
 348                 struct POSTSTATUS {
 349                         __le32 Post_Command;
 350                         __le32 Post_Address;
 351                 } * post;
 352                 dma_addr_t paddr, baddr;
 353                 int ret;
 354
 355                 if (likely((status & 0xFF000000L) == 0xBC000000L))
 356                         return (status >> 16) & 0xFF;
 357                 buffer = pci_alloc_consistent(dev->pdev, 512, &baddr);
 358                 ret = -2;
 359                 if (unlikely(buffer == NULL))
 360                         return ret;
 361                 post = pci_alloc_consistent(dev->pdev,
 362                   sizeof(struct POSTSTATUS), &paddr);
 363                 if (unlikely(post == NULL)) {
 364                         pci_free_consistent(dev->pdev, 512, buffer, baddr);
 365                         return ret;
 366                 }
 367                 memset(buffer, 0, 512);
 368                 post->Post_Command = cpu_to_le32(COMMAND_POST_RESULTS);
 369                 post->Post_Address = cpu_to_le32(baddr);
 370                 rx_writel(dev, MUnit.IMRx[0], paddr);
 371                 rx_sync_cmd(dev, COMMAND_POST_RESULTS, baddr, 0, 0, 0, 0, 0,
 372                   NULL, NULL, NULL, NULL, NULL);
 373                 pci_free_consistent(dev->pdev, sizeof(struct POSTSTATUS),
 374                   post, paddr);
 375                 if (likely((buffer[0] == '0') && ((buffer[1] == 'x') || (buffer[1] == 'X')))) {
 376                         ret = (hex_to_bin(buffer[2]) << 4) +
 377                                 hex_to_bin(buffer[3]);
 378                 }
 379                 pci_free_consistent(dev->pdev, 512, buffer, baddr);
 380                 return ret;
 381         }
 382         /*
 383          *      Wait for the adapter to be up and running.
 384          */
 385         if (unlikely(!(status & KERNEL_UP_AND_RUNNING)))
 386                 return -3;
 387         /*
 388          *      Everything is OK
 389          */
 390         return 0;
 391 }
 392
 393 /**
 394  *      aac_rx_deliver_producer
 395  *      @fib: fib to issue
 396  *
 397  *      Will send a fib, returning 0 if successful.
 398  */
 399 int aac_rx_deliver_producer(struct fib * fib)
 400 {
 401         struct aac_dev *dev = fib->dev;
 402         struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue];
 403         u32 Index;
 404         unsigned long nointr = 0;
 405
 406         aac_queue_get( dev, &Index, AdapNormCmdQueue, fib->hw_fib_va, 1, fib, &nointr);
 407
 408         atomic_inc(&q->numpending);
 409         *(q->headers.producer) = cpu_to_le32(Index + 1);
 410         if (!(nointr & aac_config.irq_mod))
 411                 aac_adapter_notify(dev, AdapNormCmdQueue);
 412
 413         return 0;
 414 }
 415
 416 /**
 417  *      aac_rx_deliver_message
 418  *      @fib: fib to issue
 419  *
 420  *      Will send a fib, returning 0 if successful.
 421  */
 422 static int aac_rx_deliver_message(struct fib * fib)
 423 {
 424         struct aac_dev *dev = fib->dev;
 425         struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue];
 426         u32 Index;
 427         u64 addr;
 428         volatile void __iomem *device;
 429
 430         unsigned long count = 10000000L; /* 50 seconds */
 431         atomic_inc(&q->numpending);
 432         for(;;) {
 433                 Index = rx_readl(dev, MUnit.InboundQueue);
 434                 if (unlikely(Index == 0xFFFFFFFFL))
 435                         Index = rx_readl(dev, MUnit.InboundQueue);
 436                 if (likely(Index != 0xFFFFFFFFL))
 437                         break;
 438                 if (--count == 0) {
 439                         atomic_dec(&q->numpending);
 440                         return -ETIMEDOUT;
 441                 }
 442                 udelay(5);
 443         }
 444         device = dev->base + Index;
 445         addr = fib->hw_fib_pa;
 446         writel((u32)(addr & 0xffffffff), device);
 447         device += sizeof(u32);
 448         writel((u32)(addr >> 32), device);
 449         device += sizeof(u32);
 450         writel(le16_to_cpu(fib->hw_fib_va->header.Size), device);
 451         rx_writel(dev, MUnit.InboundQueue, Index);
 452         return 0;
 453 }
 454
 455 /**
 456  *      aac_rx_ioremap
 457  *      @size: mapping resize request
 458  *
 459  */
 460 static int aac_rx_ioremap(struct aac_dev * dev, u32 size)
 461 {
 462         if (!size) {
 463                 iounmap(dev->regs.rx);
 464                 return 0;
 465         }
 466         dev->base = dev->regs.rx = ioremap(dev->base_start, size);
 467         if (dev->base == NULL)
 468                 return -1;
 469         dev->IndexRegs = &dev->regs.rx->IndexRegs;
 470         return 0;
 471 }
 472
 473 static int aac_rx_restart_adapter(struct aac_dev *dev, int bled)
 474 {
 475         u32 var = 0;
 476
 477         if (!(dev->supplement_adapter_info.SupportedOptions2 &
 478           AAC_OPTION_MU_RESET) || (bled >= 0) || (bled == -2)) {
 479                 if (bled)
 480                         printk(KERN_ERR "%s%d: adapter kernel panic'd %x.\n",
 481                                 dev->name, dev->id, bled);
 482                 else {
 483                         bled = aac_adapter_sync_cmd(dev, IOP_RESET_ALWAYS,
 484                           0, 0, 0, 0, 0, 0, &var, NULL, NULL, NULL, NULL);
 485                         if (!bled && (var != 0x00000001) && (var != 0x3803000F))
 486                                 bled = -EINVAL;
 487                 }
 488                 if (bled && (bled != -ETIMEDOUT))
 489                         bled = aac_adapter_sync_cmd(dev, IOP_RESET,
 490                           0, 0, 0, 0, 0, 0, &var, NULL, NULL, NULL, NULL);
 491
 492                 if (bled && (bled != -ETIMEDOUT))
 493                         return -EINVAL;
 494         }
 495         if (bled && (var == 0x3803000F)) { /* USE_OTHER_METHOD */
 496                 rx_writel(dev, MUnit.reserved2, 3);
 497                 msleep(5000); /* Delay 5 seconds */
 498                 var = 0x00000001;
 499         }
 500         if (bled && (var != 0x00000001))
 501                 return -EINVAL;
 502         ssleep(5);
 503         if (rx_readl(dev, MUnit.OMRx[0]) & KERNEL_PANIC)
 504                 return -ENODEV;
 505         if (startup_timeout < 300)
 506                 startup_timeout = 300;
 507         return 0;
 508 }
 509
 510 /**
 511  *      aac_rx_select_comm      -       Select communications method
 512  *      @dev: Adapter
 513  *      @comm: communications method
 514  */
 515
 516 int aac_rx_select_comm(struct aac_dev *dev, int comm)
 517 {
 518         switch (comm) {
 519         case AAC_COMM_PRODUCER:
 520                 dev->a_ops.adapter_enable_int = aac_rx_enable_interrupt_producer;
 521                 dev->a_ops.adapter_intr = aac_rx_intr_producer;
 522                 dev->a_ops.adapter_deliver = aac_rx_deliver_producer;
 523                 break;
 524         case AAC_COMM_MESSAGE:
 525                 dev->a_ops.adapter_enable_int = aac_rx_enable_interrupt_message;
 526                 dev->a_ops.adapter_intr = aac_rx_intr_message;
 527                 dev->a_ops.adapter_deliver = aac_rx_deliver_message;
 528                 break;
 529         default:
 530                 return 1;
 531         }
 532         return 0;
 533 }
 534
 535 /**
 536  *      aac_rx_init     -       initialize an i960 based AAC card
 537  *      @dev: device to configure
 538  *
 539  *      Allocate and set up resources for the i960 based AAC variants. The
 540  *      device_interface in the commregion will be allocated and linked
 541  *      to the comm region.
 542  */
 543
 544 int _aac_rx_init(struct aac_dev *dev)
 545 {
 546         unsigned long start;
 547         unsigned long status;
 548         int restart = 0;
 549         int instance = dev->id;
 550         const char * name = dev->name;
 551
 552         if (aac_adapter_ioremap(dev, dev->base_size)) {
 553                 printk(KERN_WARNING "%s: unable to map adapter.\n", name);
 554                 goto error_iounmap;
 555         }
 556
 557         /* Failure to reset here is an option ... */
 558         dev->a_ops.adapter_sync_cmd = rx_sync_cmd;
 559         dev->a_ops.adapter_enable_int = aac_rx_disable_interrupt;
 560         dev->OIMR = status = rx_readb (dev, MUnit.OIMR);
 561         if ((((status & 0x0c) != 0x0c) || aac_reset_devices || reset_devices) &&
 562           !aac_rx_restart_adapter(dev, 0))
 563                 /* Make sure the Hardware FIFO is empty */
 564                 while ((++restart < 512) &&
 565                   (rx_readl(dev, MUnit.OutboundQueue) != 0xFFFFFFFFL));
 566         /*
 567          *      Check to see if the board panic'd while booting.
 568          */
 569         status = rx_readl(dev, MUnit.OMRx[0]);
 570         if (status & KERNEL_PANIC) {
 571                 if (aac_rx_restart_adapter(dev, aac_rx_check_health(dev)))
 572                         goto error_iounmap;
 573                 ++restart;
 574         }
 575         /*
 576          *      Check to see if the board failed any self tests.
 577          */
 578         status = rx_readl(dev, MUnit.OMRx[0]);
 579         if (status & SELF_TEST_FAILED) {
 580                 printk(KERN_ERR "%s%d: adapter self-test failed.\n", dev->name, instance);
 581                 goto error_iounmap;
 582         }
 583         /*
 584          *      Check to see if the monitor panic'd while booting.
 585          */
 586         if (status & MONITOR_PANIC) {
 587                 printk(KERN_ERR "%s%d: adapter monitor panic.\n", dev->name, instance);
 588                 goto error_iounmap;
 589         }
 590         start = jiffies;
 591         /*
 592          *      Wait for the adapter to be up and running. Wait up to 3 minutes
 593          */
 594         while (!((status = rx_readl(dev, MUnit.OMRx[0])) & KERNEL_UP_AND_RUNNING))
 595         {
 596                 if ((restart &&
 597                   (status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC))) ||
 598                   time_after(jiffies, start+HZ*startup_timeout)) {
 599                         printk(KERN_ERR "%s%d: adapter kernel failed to start, init status = %lx.\n",
 600                                         dev->name, instance, status);
 601                         goto error_iounmap;
 602                 }
 603                 if (!restart &&
 604                   ((status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC)) ||
 605                   time_after(jiffies, start + HZ *
 606                   ((startup_timeout > 60)
 607                     ? (startup_timeout - 60)
 608                     : (startup_timeout / 2))))) {
 609                         if (likely(!aac_rx_restart_adapter(dev, aac_rx_check_health(dev))))
 610                                 start = jiffies;
 611                         ++restart;
 612                 }
 613                 msleep(1);
 614         }
 615         if (restart && aac_commit)
 616                 aac_commit = 1;
 617         /*
 618          *      Fill in the common function dispatch table.
 619          */
 620         dev->a_ops.adapter_interrupt = aac_rx_interrupt_adapter;
 621         dev->a_ops.adapter_disable_int = aac_rx_disable_interrupt;
 622         dev->a_ops.adapter_notify = aac_rx_notify_adapter;
 623         dev->a_ops.adapter_sync_cmd = rx_sync_cmd;
 624         dev->a_ops.adapter_check_health = aac_rx_check_health;
 625         dev->a_ops.adapter_restart = aac_rx_restart_adapter;
 626
 627         /*
 628          *      First clear out all interrupts.  Then enable the one's that we
 629          *      can handle.
 630          */
 631         aac_adapter_comm(dev, AAC_COMM_PRODUCER);
 632         aac_adapter_disable_int(dev);
 633         rx_writel(dev, MUnit.ODR, 0xffffffff);
 634         aac_adapter_enable_int(dev);
 635
 636         if (aac_init_adapter(dev) == NULL)
 637                 goto error_iounmap;
 638         aac_adapter_comm(dev, dev->comm_interface);
 639         dev->sync_mode = 0;     /* sync. mode not supported */
 640         dev->msi = aac_msi && !pci_enable_msi(dev->pdev);
 641         if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr,
 642                         IRQF_SHARED, "aacraid", dev) < 0) {
 643                 if (dev->msi)
 644                         pci_disable_msi(dev->pdev);
 645                 printk(KERN_ERR "%s%d: Interrupt unavailable.\n",
 646                         name, instance);
 647                 goto error_iounmap;
 648         }
 649         dev->dbg_base = dev->base_start;
 650         dev->dbg_base_mapped = dev->base;
 651         dev->dbg_size = dev->base_size;
 652
 653         aac_adapter_enable_int(dev);
 654         /*
 655          *      Tell the adapter that all is configured, and it can
 656          * start accepting requests
 657          */
 658         aac_rx_start_adapter(dev);
 659
 660         return 0;
 661
 662 error_iounmap:
 663
 664         return -1;
 665 }
 666
 667 int aac_rx_init(struct aac_dev *dev)
 668 {
 669         /*
 670          *      Fill in the function dispatch table.
 671          */
 672         dev->a_ops.adapter_ioremap = aac_rx_ioremap;
 673         dev->a_ops.adapter_comm = aac_rx_select_comm;
 674
 675         return _aac_rx_init(dev);
 676 }