drivers/scsi/aacraid/rx.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *      Adaptec AAC series RAID controller driver
   4  *      (c) Copyright 2001 Red Hat Inc.
   5  *
   6  * based on the old aacraid driver that is..
   7  * Adaptec aacraid device driver for Linux.
   8  *
   9  * Copyright (c) 2000-2010 Adaptec, Inc.
  10  *               2010-2015 PMC-Sierra, Inc. (aacraid@pmc-sierra.com)
  11  *               2016-2017 Microsemi Corp. (aacraid@microsemi.com)
  12  *
  13  * Module Name:
  14  *  rx.c
  15  *
  16  * Abstract: Hardware miniport for Drawbridge specific hardware functions.
  17  */
  18
  19 #include <linux/kernel.h>
  20 #include <linux/init.h>
  21 #include <linux/types.h>
  22 #include <linux/pci.h>
  23 #include <linux/spinlock.h>
  24 #include <linux/blkdev.h>
  25 #include <linux/delay.h>
  26 #include <linux/completion.h>
  27 #include <linux/time.h>
  28 #include <linux/interrupt.h>
  29
  30 #include <scsi/scsi_host.h>
  31
  32 #include "aacraid.h"
  33
  34 static irqreturn_t aac_rx_intr_producer(int irq, void *dev_id)
  35 {
  36         struct aac_dev *dev = dev_id;
  37         unsigned long bellbits;
  38         u8 intstat = rx_readb(dev, MUnit.OISR);
  39
  40         /*
  41          *      Read mask and invert because drawbridge is reversed.
  42          *      This allows us to only service interrupts that have
  43          *      been enabled.
  44          *      Check to see if this is our interrupt.  If it isn't just return
  45          */
  46         if (likely(intstat & ~(dev->OIMR))) {
  47                 bellbits = rx_readl(dev, OutboundDoorbellReg);
  48                 if (unlikely(bellbits & DoorBellPrintfReady)) {
  49                         aac_printf(dev, readl (&dev->IndexRegs->Mailbox[5]));
  50                         rx_writel(dev, MUnit.ODR,DoorBellPrintfReady);
  51                         rx_writel(dev, InboundDoorbellReg,DoorBellPrintfDone);
  52                 }
  53                 else if (unlikely(bellbits & DoorBellAdapterNormCmdReady)) {
  54                         rx_writel(dev, MUnit.ODR, DoorBellAdapterNormCmdReady);
  55                         aac_command_normal(&dev->queues->queue[HostNormCmdQueue]);
  56                 }
  57                 else if (likely(bellbits & DoorBellAdapterNormRespReady)) {
  58                         rx_writel(dev, MUnit.ODR,DoorBellAdapterNormRespReady);
  59                         aac_response_normal(&dev->queues->queue[HostNormRespQueue]);
  60                 }
  61                 else if (unlikely(bellbits & DoorBellAdapterNormCmdNotFull)) {
  62                         rx_writel(dev, MUnit.ODR, DoorBellAdapterNormCmdNotFull);
  63                 }
  64                 else if (unlikely(bellbits & DoorBellAdapterNormRespNotFull)) {
  65                         rx_writel(dev, MUnit.ODR, DoorBellAdapterNormCmdNotFull);
  66                         rx_writel(dev, MUnit.ODR, DoorBellAdapterNormRespNotFull);
  67                 }
  68                 return IRQ_HANDLED;
  69         }
  70         return IRQ_NONE;
  71 }
  72
  73 static irqreturn_t aac_rx_intr_message(int irq, void *dev_id)
  74 {
  75         int isAif, isFastResponse, isSpecial;
  76         struct aac_dev *dev = dev_id;
  77         u32 Index = rx_readl(dev, MUnit.OutboundQueue);
  78         if (unlikely(Index == 0xFFFFFFFFL))
  79                 Index = rx_readl(dev, MUnit.OutboundQueue);
  80         if (likely(Index != 0xFFFFFFFFL)) {
  81                 do {
  82                         isAif = isFastResponse = isSpecial = 0;
  83                         if (Index & 0x00000002L) {
  84                                 isAif = 1;
  85                                 if (Index == 0xFFFFFFFEL)
  86                                         isSpecial = 1;
  87                                 Index &= ~0x00000002L;
  88                         } else {
  89                                 if (Index & 0x00000001L)
  90                                         isFastResponse = 1;
  91                                 Index >>= 2;
  92                         }
  93                         if (!isSpecial) {
  94                                 if (unlikely(aac_intr_normal(dev,
  95                                                 Index, isAif,
  96                                                 isFastResponse, NULL))) {
  97                                         rx_writel(dev,
  98                                                 MUnit.OutboundQueue,
  99                                                 Index);
 100                                         rx_writel(dev,
 101                                                 MUnit.ODR,
 102                                                 DoorBellAdapterNormRespReady);
 103                                 }
 104                         }
 105                         Index = rx_readl(dev, MUnit.OutboundQueue);
 106                 } while (Index != 0xFFFFFFFFL);
 107                 return IRQ_HANDLED;
 108         }
 109         return IRQ_NONE;
 110 }
 111
 112 /**
 113  *      aac_rx_disable_interrupt        -       Disable interrupts
 114  *      @dev: Adapter
 115  */
 116
 117 static void aac_rx_disable_interrupt(struct aac_dev *dev)
 118 {
 119         rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xff);
 120 }
 121
 122 /**
 123  *      aac_rx_enable_interrupt_producer        -       Enable interrupts
 124  *      @dev: Adapter
 125  */
 126
 127 static void aac_rx_enable_interrupt_producer(struct aac_dev *dev)
 128 {
 129         rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xfb);
 130 }
 131
 132 /**
 133  *      aac_rx_enable_interrupt_message -       Enable interrupts
 134  *      @dev: Adapter
 135  */
 136
 137 static void aac_rx_enable_interrupt_message(struct aac_dev *dev)
 138 {
 139         rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xf7);
 140 }
 141
 142 /**
 143  *      rx_sync_cmd     -       send a command and wait
 144  *      @dev: Adapter
 145  *      @command: Command to execute
 146  *      @p1: first parameter
 147  *      @p2: second parameter
 148  *      @p3: third parameter
 149  *      @p4: forth parameter
 150  *      @p5: fifth parameter
 151  *      @p6: sixth parameter
 152  *      @status: adapter status
 153  *      @r1: first return value
 154  *      @r2: second return value
 155  *      @r3: third return value
 156  *      @r4: forth return value
 157  *
 158  *      This routine will send a synchronous command to the adapter and wait
 159  *      for its completion.
 160  */
 161
 162 static int rx_sync_cmd(struct aac_dev *dev, u32 command,
 163         u32 p1, u32 p2, u32 p3, u32 p4, u32 p5, u32 p6,
 164         u32 *status, u32 * r1, u32 * r2, u32 * r3, u32 * r4)
 165 {
 166         unsigned long start;
 167         int ok;
 168         /*
 169          *      Write the command into Mailbox 0
 170          */
 171         writel(command, &dev->IndexRegs->Mailbox[0]);
 172         /*
 173          *      Write the parameters into Mailboxes 1 - 6
 174          */
 175         writel(p1, &dev->IndexRegs->Mailbox[1]);
 176         writel(p2, &dev->IndexRegs->Mailbox[2]);
 177         writel(p3, &dev->IndexRegs->Mailbox[3]);
 178         writel(p4, &dev->IndexRegs->Mailbox[4]);
 179         /*
 180          *      Clear the synch command doorbell to start on a clean slate.
 181          */
 182         rx_writel(dev, OutboundDoorbellReg, OUTBOUNDDOORBELL_0);
 183         /*
 184          *      Disable doorbell interrupts
 185          */
 186         rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xff);
 187         /*
 188          *      Force the completion of the mask register write before issuing
 189          *      the interrupt.
 190          */
 191         rx_readb (dev, MUnit.OIMR);
 192         /*
 193          *      Signal that there is a new synch command
 194          */
 195         rx_writel(dev, InboundDoorbellReg, INBOUNDDOORBELL_0);
 196
 197         ok = 0;
 198         start = jiffies;
 199
 200         /*
 201          *      Wait up to 30 seconds
 202          */
 203         while (time_before(jiffies, start+30*HZ))
 204         {
 205                 udelay(5);      /* Delay 5 microseconds to let Mon960 get info. */
 206                 /*
 207                  *      Mon960 will set doorbell0 bit when it has completed the command.
 208                  */
 209                 if (rx_readl(dev, OutboundDoorbellReg) & OUTBOUNDDOORBELL_0) {
 210                         /*
 211                          *      Clear the doorbell.
 212                          */
 213                         rx_writel(dev, OutboundDoorbellReg, OUTBOUNDDOORBELL_0);
 214                         ok = 1;
 215                         break;
 216                 }
 217                 /*
 218                  *      Yield the processor in case we are slow
 219                  */
 220                 msleep(1);
 221         }
 222         if (unlikely(ok != 1)) {
 223                 /*
 224                  *      Restore interrupt mask even though we timed out
 225                  */
 226                 aac_adapter_enable_int(dev);
 227                 return -ETIMEDOUT;
 228         }
 229         /*
 230          *      Pull the synch status from Mailbox 0.
 231          */
 232         if (status)
 233                 *status = readl(&dev->IndexRegs->Mailbox[0]);
 234         if (r1)
 235                 *r1 = readl(&dev->IndexRegs->Mailbox[1]);
 236         if (r2)
 237                 *r2 = readl(&dev->IndexRegs->Mailbox[2]);
 238         if (r3)
 239                 *r3 = readl(&dev->IndexRegs->Mailbox[3]);
 240         if (r4)
 241                 *r4 = readl(&dev->IndexRegs->Mailbox[4]);
 242         /*
 243          *      Clear the synch command doorbell.
 244          */
 245         rx_writel(dev, OutboundDoorbellReg, OUTBOUNDDOORBELL_0);
 246         /*
 247          *      Restore interrupt mask
 248          */
 249         aac_adapter_enable_int(dev);
 250         return 0;
 251
 252 }
 253
 254 /**
 255  *      aac_rx_interrupt_adapter        -       interrupt adapter
 256  *      @dev: Adapter
 257  *
 258  *      Send an interrupt to the i960 and breakpoint it.
 259  */
 260
 261 static void aac_rx_interrupt_adapter(struct aac_dev *dev)
 262 {
 263         rx_sync_cmd(dev, BREAKPOINT_REQUEST, 0, 0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL);
 264 }
 265
 266 /**
 267  *      aac_rx_notify_adapter           -       send an event to the adapter
 268  *      @dev: Adapter
 269  *      @event: Event to send
 270  *
 271  *      Notify the i960 that something it probably cares about has
 272  *      happened.
 273  */
 274
 275 static void aac_rx_notify_adapter(struct aac_dev *dev, u32 event)
 276 {
 277         switch (event) {
 278
 279         case AdapNormCmdQue:
 280                 rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_1);
 281                 break;
 282         case HostNormRespNotFull:
 283                 rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_4);
 284                 break;
 285         case AdapNormRespQue:
 286                 rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_2);
 287                 break;
 288         case HostNormCmdNotFull:
 289                 rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_3);
 290                 break;
 291         case HostShutdown:
 292                 break;
 293         case FastIo:
 294                 rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_6);
 295                 break;
 296         case AdapPrintfDone:
 297                 rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_5);
 298                 break;
 299         default:
 300                 BUG();
 301                 break;
 302         }
 303 }
 304
 305 /**
 306  *      aac_rx_start_adapter            -       activate adapter
 307  *      @dev:   Adapter
 308  *
 309  *      Start up processing on an i960 based AAC adapter
 310  */
 311
 312 static void aac_rx_start_adapter(struct aac_dev *dev)
 313 {
 314         union aac_init *init;
 315
 316         init = dev->init;
 317         init->r7.host_elapsed_seconds = cpu_to_le32(ktime_get_real_seconds());
 318         // We can only use a 32 bit address here
 319         rx_sync_cmd(dev, INIT_STRUCT_BASE_ADDRESS, (u32)(ulong)dev->init_pa,
 320           0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL);
 321 }
 322
 323 /**
 324  *      aac_rx_check_health
 325  *      @dev: device to check if healthy
 326  *
 327  *      Will attempt to determine if the specified adapter is alive and
 328  *      capable of handling requests, returning 0 if alive.
 329  */
 330 static int aac_rx_check_health(struct aac_dev *dev)
 331 {
 332         u32 status = rx_readl(dev, MUnit.OMRx[0]);
 333
 334         /*
 335          *      Check to see if the board failed any self tests.
 336          */
 337         if (unlikely(status & SELF_TEST_FAILED))
 338                 return -1;
 339         /*
 340          *      Check to see if the board panic'd.
 341          */
 342         if (unlikely(status & KERNEL_PANIC)) {
 343                 char * buffer;
 344                 struct POSTSTATUS {
 345                         __le32 Post_Command;
 346                         __le32 Post_Address;
 347                 } * post;
 348                 dma_addr_t paddr, baddr;
 349                 int ret;
 350
 351                 if (likely((status & 0xFF000000L) == 0xBC000000L))
 352                         return (status >> 16) & 0xFF;
 353                 buffer = dma_alloc_coherent(&dev->pdev->dev, 512, &baddr,
 354                                             GFP_KERNEL);
 355                 ret = -2;
 356                 if (unlikely(buffer == NULL))
 357                         return ret;
 358                 post = dma_alloc_coherent(&dev->pdev->dev,
 359                                           sizeof(struct POSTSTATUS), &paddr,
 360                                           GFP_KERNEL);
 361                 if (unlikely(post == NULL)) {
 362                         dma_free_coherent(&dev->pdev->dev, 512, buffer, baddr);
 363                         return ret;
 364                 }
 365                 memset(buffer, 0, 512);
 366                 post->Post_Command = cpu_to_le32(COMMAND_POST_RESULTS);
 367                 post->Post_Address = cpu_to_le32(baddr);
 368                 rx_writel(dev, MUnit.IMRx[0], paddr);
 369                 rx_sync_cmd(dev, COMMAND_POST_RESULTS, baddr, 0, 0, 0, 0, 0,
 370                   NULL, NULL, NULL, NULL, NULL);
 371                 dma_free_coherent(&dev->pdev->dev, sizeof(struct POSTSTATUS),
 372                                   post, paddr);
 373                 if (likely((buffer[0] == '0') && ((buffer[1] == 'x') || (buffer[1] == 'X')))) {
 374                         ret = (hex_to_bin(buffer[2]) << 4) +
 375                                 hex_to_bin(buffer[3]);
 376                 }
 377                 dma_free_coherent(&dev->pdev->dev, 512, buffer, baddr);
 378                 return ret;
 379         }
 380         /*
 381          *      Wait for the adapter to be up and running.
 382          */
 383         if (unlikely(!(status & KERNEL_UP_AND_RUNNING)))
 384                 return -3;
 385         /*
 386          *      Everything is OK
 387          */
 388         return 0;
 389 }
 390
 391 /**
 392  *      aac_rx_deliver_producer
 393  *      @fib: fib to issue
 394  *
 395  *      Will send a fib, returning 0 if successful.
 396  */
 397 int aac_rx_deliver_producer(struct fib * fib)
 398 {
 399         struct aac_dev *dev = fib->dev;
 400         struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue];
 401         u32 Index;
 402         unsigned long nointr = 0;
 403
 404         aac_queue_get( dev, &Index, AdapNormCmdQueue, fib->hw_fib_va, 1, fib, &nointr);
 405
 406         atomic_inc(&q->numpending);
 407         *(q->headers.producer) = cpu_to_le32(Index + 1);
 408         if (!(nointr & aac_config.irq_mod))
 409                 aac_adapter_notify(dev, AdapNormCmdQueue);
 410
 411         return 0;
 412 }
 413
 414 /**
 415  *      aac_rx_deliver_message
 416  *      @fib: fib to issue
 417  *
 418  *      Will send a fib, returning 0 if successful.
 419  */
 420 static int aac_rx_deliver_message(struct fib * fib)
 421 {
 422         struct aac_dev *dev = fib->dev;
 423         struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue];
 424         u32 Index;
 425         u64 addr;
 426         volatile void __iomem *device;
 427
 428         unsigned long count = 10000000L; /* 50 seconds */
 429         atomic_inc(&q->numpending);
 430         for(;;) {
 431                 Index = rx_readl(dev, MUnit.InboundQueue);
 432                 if (unlikely(Index == 0xFFFFFFFFL))
 433                         Index = rx_readl(dev, MUnit.InboundQueue);
 434                 if (likely(Index != 0xFFFFFFFFL))
 435                         break;
 436                 if (--count == 0) {
 437                         atomic_dec(&q->numpending);
 438                         return -ETIMEDOUT;
 439                 }
 440                 udelay(5);
 441         }
 442         device = dev->base + Index;
 443         addr = fib->hw_fib_pa;
 444         writel((u32)(addr & 0xffffffff), device);
 445         device += sizeof(u32);
 446         writel((u32)(addr >> 32), device);
 447         device += sizeof(u32);
 448         writel(le16_to_cpu(fib->hw_fib_va->header.Size), device);
 449         rx_writel(dev, MUnit.InboundQueue, Index);
 450         return 0;
 451 }
 452
 453 /**
 454  *      aac_rx_ioremap
 455  *      @dev: adapter
 456  *      @size: mapping resize request
 457  *
 458  */
 459 static int aac_rx_ioremap(struct aac_dev * dev, u32 size)
 460 {
 461         if (!size) {
 462                 iounmap(dev->regs.rx);
 463                 return 0;
 464         }
 465         dev->base = dev->regs.rx = ioremap(dev->base_start, size);
 466         if (dev->base == NULL)
 467                 return -1;
 468         dev->IndexRegs = &dev->regs.rx->IndexRegs;
 469         return 0;
 470 }
 471
 472 static int aac_rx_restart_adapter(struct aac_dev *dev, int bled, u8 reset_type)
 473 {
 474         u32 var = 0;
 475
 476         if (!(dev->supplement_adapter_info.supported_options2 &
 477           AAC_OPTION_MU_RESET) || (bled >= 0) || (bled == -2)) {
 478                 if (bled)
 479                         printk(KERN_ERR "%s%d: adapter kernel panic'd %x.\n",
 480                                 dev->name, dev->id, bled);
 481                 else {
 482                         bled = aac_adapter_sync_cmd(dev, IOP_RESET_ALWAYS,
 483                           0, 0, 0, 0, 0, 0, &var, NULL, NULL, NULL, NULL);
 484                         if (!bled && (var != 0x00000001) && (var != 0x3803000F))
 485                                 bled = -EINVAL;
 486                 }
 487                 if (bled && (bled != -ETIMEDOUT))
 488                         bled = aac_adapter_sync_cmd(dev, IOP_RESET,
 489                           0, 0, 0, 0, 0, 0, &var, NULL, NULL, NULL, NULL);
 490
 491                 if (bled && (bled != -ETIMEDOUT))
 492                         return -EINVAL;
 493         }
 494         if (bled && (var == 0x3803000F)) { /* USE_OTHER_METHOD */
 495                 rx_writel(dev, MUnit.reserved2, 3);
 496                 msleep(5000); /* Delay 5 seconds */
 497                 var = 0x00000001;
 498         }
 499         if (bled && (var != 0x00000001))
 500                 return -EINVAL;
 501         ssleep(5);
 502         if (rx_readl(dev, MUnit.OMRx[0]) & KERNEL_PANIC)
 503                 return -ENODEV;
 504         if (startup_timeout < 300)
 505                 startup_timeout = 300;
 506         return 0;
 507 }
 508
 509 /**
 510  *      aac_rx_select_comm      -       Select communications method
 511  *      @dev: Adapter
 512  *      @comm: communications method
 513  */
 514
 515 int aac_rx_select_comm(struct aac_dev *dev, int comm)
 516 {
 517         switch (comm) {
 518         case AAC_COMM_PRODUCER:
 519                 dev->a_ops.adapter_enable_int = aac_rx_enable_interrupt_producer;
 520                 dev->a_ops.adapter_intr = aac_rx_intr_producer;
 521                 dev->a_ops.adapter_deliver = aac_rx_deliver_producer;
 522                 break;
 523         case AAC_COMM_MESSAGE:
 524                 dev->a_ops.adapter_enable_int = aac_rx_enable_interrupt_message;
 525                 dev->a_ops.adapter_intr = aac_rx_intr_message;
 526                 dev->a_ops.adapter_deliver = aac_rx_deliver_message;
 527                 break;
 528         default:
 529                 return 1;
 530         }
 531         return 0;
 532 }
 533
 534 /**
 535  *      aac_rx_init     -       initialize an i960 based AAC card
 536  *      @dev: device to configure
 537  *
 538  *      Allocate and set up resources for the i960 based AAC variants. The
 539  *      device_interface in the commregion will be allocated and linked
 540  *      to the comm region.
 541  */
 542
 543 int _aac_rx_init(struct aac_dev *dev)
 544 {
 545         unsigned long start;
 546         unsigned long status;
 547         int restart = 0;
 548         int instance = dev->id;
 549         const char * name = dev->name;
 550
 551         if (aac_adapter_ioremap(dev, dev->base_size)) {
 552                 printk(KERN_WARNING "%s: unable to map adapter.\n", name);
 553                 goto error_iounmap;
 554         }
 555
 556         /* Failure to reset here is an option ... */
 557         dev->a_ops.adapter_sync_cmd = rx_sync_cmd;
 558         dev->a_ops.adapter_enable_int = aac_rx_disable_interrupt;
 559         dev->OIMR = status = rx_readb (dev, MUnit.OIMR);
 560
 561         if (((status & 0x0c) != 0x0c) || dev->init_reset) {
 562                 dev->init_reset = false;
 563                 if (!aac_rx_restart_adapter(dev, 0, IOP_HWSOFT_RESET)) {
 564                         /* Make sure the Hardware FIFO is empty */
 565                         while ((++restart < 512) &&
 566                                (rx_readl(dev, MUnit.OutboundQueue) != 0xFFFFFFFFL));
 567                 }
 568         }
 569
 570         /*
 571          *      Check to see if the board panic'd while booting.
 572          */
 573         status = rx_readl(dev, MUnit.OMRx[0]);
 574         if (status & KERNEL_PANIC) {
 575                 if (aac_rx_restart_adapter(dev,
 576                         aac_rx_check_health(dev), IOP_HWSOFT_RESET))
 577                         goto error_iounmap;
 578                 ++restart;
 579         }
 580         /*
 581          *      Check to see if the board failed any self tests.
 582          */
 583         status = rx_readl(dev, MUnit.OMRx[0]);
 584         if (status & SELF_TEST_FAILED) {
 585                 printk(KERN_ERR "%s%d: adapter self-test failed.\n", dev->name, instance);
 586                 goto error_iounmap;
 587         }
 588         /*
 589          *      Check to see if the monitor panic'd while booting.
 590          */
 591         if (status & MONITOR_PANIC) {
 592                 printk(KERN_ERR "%s%d: adapter monitor panic.\n", 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 = rx_readl(dev, MUnit.OMRx[0])) & KERNEL_UP_AND_RUNNING))
 600         {
 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_rx_restart_adapter(dev,
 615                                 aac_rx_check_health(dev), IOP_HWSOFT_RESET)))
 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_rx_interrupt_adapter;
 627         dev->a_ops.adapter_disable_int = aac_rx_disable_interrupt;
 628         dev->a_ops.adapter_notify = aac_rx_notify_adapter;
 629         dev->a_ops.adapter_sync_cmd = rx_sync_cmd;
 630         dev->a_ops.adapter_check_health = aac_rx_check_health;
 631         dev->a_ops.adapter_restart = aac_rx_restart_adapter;
 632         dev->a_ops.adapter_start = aac_rx_start_adapter;
 633
 634         /*
 635          *      First clear out all interrupts.  Then enable the one's that we
 636          *      can handle.
 637          */
 638         aac_adapter_comm(dev, AAC_COMM_PRODUCER);
 639         aac_adapter_disable_int(dev);
 640         rx_writel(dev, MUnit.ODR, 0xffffffff);
 641         aac_adapter_enable_int(dev);
 642
 643         if (aac_init_adapter(dev) == NULL)
 644                 goto error_iounmap;
 645         aac_adapter_comm(dev, dev->comm_interface);
 646         dev->sync_mode = 0;     /* sync. mode not supported */
 647         dev->msi = aac_msi && !pci_enable_msi(dev->pdev);
 648         if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr,
 649                         IRQF_SHARED, "aacraid", dev) < 0) {
 650                 if (dev->msi)
 651                         pci_disable_msi(dev->pdev);
 652                 printk(KERN_ERR "%s%d: Interrupt unavailable.\n",
 653                         name, instance);
 654                 goto error_iounmap;
 655         }
 656         dev->dbg_base = dev->base_start;
 657         dev->dbg_base_mapped = dev->base;
 658         dev->dbg_size = dev->base_size;
 659
 660         aac_adapter_enable_int(dev);
 661         /*
 662          *      Tell the adapter that all is configured, and it can
 663          * start accepting requests
 664          */
 665         aac_rx_start_adapter(dev);
 666
 667         return 0;
 668
 669 error_iounmap:
 670
 671         return -1;
 672 }
 673
 674 int aac_rx_init(struct aac_dev *dev)
 675 {
 676         /*
 677          *      Fill in the function dispatch table.
 678          */
 679         dev->a_ops.adapter_ioremap = aac_rx_ioremap;
 680         dev->a_ops.adapter_comm = aac_rx_select_comm;
 681
 682         return _aac_rx_init(dev);
 683 }