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) 2000-2007 Adaptec, Inc. (aacraid@adaptec.com)
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2, or (at your option)
  13  * any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; see the file COPYING.  If not, write to
  22  * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
  23  *
  24  * Module Name:
  25  *  rx.c
  26  *
  27  * Abstract: Hardware miniport for Drawbridge specific hardware functions.
  28  *
  29  */
  30
  31 #include <linux/kernel.h>
  32 #include <linux/init.h>
  33 #include <linux/types.h>
  34 #include <linux/pci.h>
  35 #include <linux/spinlock.h>
  36 #include <linux/blkdev.h>
  37 #include <linux/delay.h>
  38 #include <linux/completion.h>
  39 #include <linux/time.h>
  40 #include <linux/interrupt.h>
  41
  42 #include <scsi/scsi_host.h>
  43
  44 #include "aacraid.h"
  45
  46 static irqreturn_t aac_rx_intr_producer(int irq, void *dev_id)
  47 {
  48         struct aac_dev *dev = dev_id;
  49         unsigned long bellbits;
  50         u8 intstat = rx_readb(dev, MUnit.OISR);
  51
  52         /*
  53          *      Read mask and invert because drawbridge is reversed.
  54          *      This allows us to only service interrupts that have
  55          *      been enabled.
  56          *      Check to see if this is our interrupt.  If it isn't just return
  57          */
  58         if (likely(intstat & ~(dev->OIMR))) {
  59                 bellbits = rx_readl(dev, OutboundDoorbellReg);
  60                 if (unlikely(bellbits & DoorBellPrintfReady)) {
  61                         aac_printf(dev, readl (&dev->IndexRegs->Mailbox[5]));
  62                         rx_writel(dev, MUnit.ODR,DoorBellPrintfReady);
  63                         rx_writel(dev, InboundDoorbellReg,DoorBellPrintfDone);
  64                 }
  65                 else if (unlikely(bellbits & DoorBellAdapterNormCmdReady)) {
  66                         rx_writel(dev, MUnit.ODR, DoorBellAdapterNormCmdReady);
  67                         aac_command_normal(&dev->queues->queue[HostNormCmdQueue]);
  68                 }
  69                 else if (likely(bellbits & DoorBellAdapterNormRespReady)) {
  70                         rx_writel(dev, MUnit.ODR,DoorBellAdapterNormRespReady);
  71                         aac_response_normal(&dev->queues->queue[HostNormRespQueue]);
  72                 }
  73                 else if (unlikely(bellbits & DoorBellAdapterNormCmdNotFull)) {
  74                         rx_writel(dev, MUnit.ODR, DoorBellAdapterNormCmdNotFull);
  75                 }
  76                 else if (unlikely(bellbits & DoorBellAdapterNormRespNotFull)) {
  77                         rx_writel(dev, MUnit.ODR, DoorBellAdapterNormCmdNotFull);
  78                         rx_writel(dev, MUnit.ODR, DoorBellAdapterNormRespNotFull);
  79                 }
  80                 return IRQ_HANDLED;
  81         }
  82         return IRQ_NONE;
  83 }
  84
  85 static irqreturn_t aac_rx_intr_message(int irq, void *dev_id)
  86 {
  87         struct aac_dev *dev = dev_id;
  88         u32 Index = rx_readl(dev, MUnit.OutboundQueue);
  89         if (unlikely(Index == 0xFFFFFFFFL))
  90                 Index = rx_readl(dev, MUnit.OutboundQueue);
  91         if (likely(Index != 0xFFFFFFFFL)) {
  92                 do {
  93                         if (unlikely(aac_intr_normal(dev, Index))) {
  94                                 rx_writel(dev, MUnit.OutboundQueue, Index);
  95                                 rx_writel(dev, MUnit.ODR, DoorBellAdapterNormRespReady);
  96                         }
  97                         Index = rx_readl(dev, MUnit.OutboundQueue);
  98                 } while (Index != 0xFFFFFFFFL);
  99                 return IRQ_HANDLED;
 100         }
 101         return IRQ_NONE;
 102 }
 103
 104 /**
 105  *      aac_rx_disable_interrupt        -       Disable interrupts
 106  *      @dev: Adapter
 107  */
 108
 109 static void aac_rx_disable_interrupt(struct aac_dev *dev)
 110 {
 111         rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xff);
 112 }
 113
 114 /**
 115  *      aac_rx_enable_interrupt_producer        -       Enable interrupts
 116  *      @dev: Adapter
 117  */
 118
 119 static void aac_rx_enable_interrupt_producer(struct aac_dev *dev)
 120 {
 121         rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xfb);
 122 }
 123
 124 /**
 125  *      aac_rx_enable_interrupt_message -       Enable interrupts
 126  *      @dev: Adapter
 127  */
 128
 129 static void aac_rx_enable_interrupt_message(struct aac_dev *dev)
 130 {
 131         rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xf7);
 132 }
 133
 134 /**
 135  *      rx_sync_cmd     -       send a command and wait
 136  *      @dev: Adapter
 137  *      @command: Command to execute
 138  *      @p1: first parameter
 139  *      @ret: adapter status
 140  *
 141  *      This routine will send a synchronous command to the adapter and wait
 142  *      for its completion.
 143  */
 144
 145 static int rx_sync_cmd(struct aac_dev *dev, u32 command,
 146         u32 p1, u32 p2, u32 p3, u32 p4, u32 p5, u32 p6,
 147         u32 *status, u32 * r1, u32 * r2, u32 * r3, u32 * r4)
 148 {
 149         unsigned long start;
 150         int ok;
 151         /*
 152          *      Write the command into Mailbox 0
 153          */
 154         writel(command, &dev->IndexRegs->Mailbox[0]);
 155         /*
 156          *      Write the parameters into Mailboxes 1 - 6
 157          */
 158         writel(p1, &dev->IndexRegs->Mailbox[1]);
 159         writel(p2, &dev->IndexRegs->Mailbox[2]);
 160         writel(p3, &dev->IndexRegs->Mailbox[3]);
 161         writel(p4, &dev->IndexRegs->Mailbox[4]);
 162         /*
 163          *      Clear the synch command doorbell to start on a clean slate.
 164          */
 165         rx_writel(dev, OutboundDoorbellReg, OUTBOUNDDOORBELL_0);
 166         /*
 167          *      Disable doorbell interrupts
 168          */
 169         rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xff);
 170         /*
 171          *      Force the completion of the mask register write before issuing
 172          *      the interrupt.
 173          */
 174         rx_readb (dev, MUnit.OIMR);
 175         /*
 176          *      Signal that there is a new synch command
 177          */
 178         rx_writel(dev, InboundDoorbellReg, INBOUNDDOORBELL_0);
 179
 180         ok = 0;
 181         start = jiffies;
 182
 183         /*
 184          *      Wait up to 30 seconds
 185          */
 186         while (time_before(jiffies, start+30*HZ))
 187         {
 188                 udelay(5);      /* Delay 5 microseconds to let Mon960 get info. */
 189                 /*
 190                  *      Mon960 will set doorbell0 bit when it has completed the command.
 191                  */
 192                 if (rx_readl(dev, OutboundDoorbellReg) & OUTBOUNDDOORBELL_0) {
 193                         /*
 194                          *      Clear the doorbell.
 195                          */
 196                         rx_writel(dev, OutboundDoorbellReg, OUTBOUNDDOORBELL_0);
 197                         ok = 1;
 198                         break;
 199                 }
 200                 /*
 201                  *      Yield the processor in case we are slow
 202                  */
 203                 msleep(1);
 204         }
 205         if (unlikely(ok != 1)) {
 206                 /*
 207                  *      Restore interrupt mask even though we timed out
 208                  */
 209                 aac_adapter_enable_int(dev);
 210                 return -ETIMEDOUT;
 211         }
 212         /*
 213          *      Pull the synch status from Mailbox 0.
 214          */
 215         if (status)
 216                 *status = readl(&dev->IndexRegs->Mailbox[0]);
 217         if (r1)
 218                 *r1 = readl(&dev->IndexRegs->Mailbox[1]);
 219         if (r2)
 220                 *r2 = readl(&dev->IndexRegs->Mailbox[2]);
 221         if (r3)
 222                 *r3 = readl(&dev->IndexRegs->Mailbox[3]);
 223         if (r4)
 224                 *r4 = readl(&dev->IndexRegs->Mailbox[4]);
 225         /*
 226          *      Clear the synch command doorbell.
 227          */
 228         rx_writel(dev, OutboundDoorbellReg, OUTBOUNDDOORBELL_0);
 229         /*
 230          *      Restore interrupt mask
 231          */
 232         aac_adapter_enable_int(dev);
 233         return 0;
 234
 235 }
 236
 237 /**
 238  *      aac_rx_interrupt_adapter        -       interrupt adapter
 239  *      @dev: Adapter
 240  *
 241  *      Send an interrupt to the i960 and breakpoint it.
 242  */
 243
 244 static void aac_rx_interrupt_adapter(struct aac_dev *dev)
 245 {
 246         rx_sync_cmd(dev, BREAKPOINT_REQUEST, 0, 0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL);
 247 }
 248
 249 /**
 250  *      aac_rx_notify_adapter           -       send an event to the adapter
 251  *      @dev: Adapter
 252  *      @event: Event to send
 253  *
 254  *      Notify the i960 that something it probably cares about has
 255  *      happened.
 256  */
 257
 258 static void aac_rx_notify_adapter(struct aac_dev *dev, u32 event)
 259 {
 260         switch (event) {
 261
 262         case AdapNormCmdQue:
 263                 rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_1);
 264                 break;
 265         case HostNormRespNotFull:
 266                 rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_4);
 267                 break;
 268         case AdapNormRespQue:
 269                 rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_2);
 270                 break;
 271         case HostNormCmdNotFull:
 272                 rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_3);
 273                 break;
 274         case HostShutdown:
 275                 break;
 276         case FastIo:
 277                 rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_6);
 278                 break;
 279         case AdapPrintfDone:
 280                 rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_5);
 281                 break;
 282         default:
 283                 BUG();
 284                 break;
 285         }
 286 }
 287
 288 /**
 289  *      aac_rx_start_adapter            -       activate adapter
 290  *      @dev:   Adapter
 291  *
 292  *      Start up processing on an i960 based AAC adapter
 293  */
 294
 295 static void aac_rx_start_adapter(struct aac_dev *dev)
 296 {
 297         struct aac_init *init;
 298
 299         init = dev->init;
 300         init->HostElapsedSeconds = cpu_to_le32(get_seconds());
 301         // We can only use a 32 bit address here
 302         rx_sync_cmd(dev, INIT_STRUCT_BASE_ADDRESS, (u32)(ulong)dev->init_pa,
 303           0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL);
 304 }
 305
 306 /**
 307  *      aac_rx_check_health
 308  *      @dev: device to check if healthy
 309  *
 310  *      Will attempt to determine if the specified adapter is alive and
 311  *      capable of handling requests, returning 0 if alive.
 312  */
 313 static int aac_rx_check_health(struct aac_dev *dev)
 314 {
 315         u32 status = rx_readl(dev, MUnit.OMRx[0]);
 316
 317         /*
 318          *      Check to see if the board failed any self tests.
 319          */
 320         if (unlikely(status & SELF_TEST_FAILED))
 321                 return -1;
 322         /*
 323          *      Check to see if the board panic'd.
 324          */
 325         if (unlikely(status & KERNEL_PANIC)) {
 326                 char * buffer;
 327                 struct POSTSTATUS {
 328                         __le32 Post_Command;
 329                         __le32 Post_Address;
 330                 } * post;
 331                 dma_addr_t paddr, baddr;
 332                 int ret;
 333
 334                 if (likely((status & 0xFF000000L) == 0xBC000000L))
 335                         return (status >> 16) & 0xFF;
 336                 buffer = pci_alloc_consistent(dev->pdev, 512, &baddr);
 337                 ret = -2;
 338                 if (unlikely(buffer == NULL))
 339                         return ret;
 340                 post = pci_alloc_consistent(dev->pdev,
 341                   sizeof(struct POSTSTATUS), &paddr);
 342                 if (unlikely(post == NULL)) {
 343                         pci_free_consistent(dev->pdev, 512, buffer, baddr);
 344                         return ret;
 345                 }
 346                 memset(buffer, 0, 512);
 347                 post->Post_Command = cpu_to_le32(COMMAND_POST_RESULTS);
 348                 post->Post_Address = cpu_to_le32(baddr);
 349                 rx_writel(dev, MUnit.IMRx[0], paddr);
 350                 rx_sync_cmd(dev, COMMAND_POST_RESULTS, baddr, 0, 0, 0, 0, 0,
 351                   NULL, NULL, NULL, NULL, NULL);
 352                 pci_free_consistent(dev->pdev, sizeof(struct POSTSTATUS),
 353                   post, paddr);
 354                 if (likely((buffer[0] == '0') && ((buffer[1] == 'x') || (buffer[1] == 'X')))) {
 355                         ret = (buffer[2] <= '9') ? (buffer[2] - '0') : (buffer[2] - 'A' + 10);
 356                         ret <<= 4;
 357                         ret += (buffer[3] <= '9') ? (buffer[3] - '0') : (buffer[3] - 'A' + 10);
 358                 }
 359                 pci_free_consistent(dev->pdev, 512, buffer, baddr);
 360                 return ret;
 361         }
 362         /*
 363          *      Wait for the adapter to be up and running.
 364          */
 365         if (unlikely(!(status & KERNEL_UP_AND_RUNNING)))
 366                 return -3;
 367         /*
 368          *      Everything is OK
 369          */
 370         return 0;
 371 }
 372
 373 /**
 374  *      aac_rx_deliver_producer
 375  *      @fib: fib to issue
 376  *
 377  *      Will send a fib, returning 0 if successful.
 378  */
 379 int aac_rx_deliver_producer(struct fib * fib)
 380 {
 381         struct aac_dev *dev = fib->dev;
 382         struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue];
 383         unsigned long qflags;
 384         u32 Index;
 385         unsigned long nointr = 0;
 386
 387         spin_lock_irqsave(q->lock, qflags);
 388         aac_queue_get( dev, &Index, AdapNormCmdQueue, fib->hw_fib_va, 1, fib, &nointr);
 389
 390         q->numpending++;
 391         *(q->headers.producer) = cpu_to_le32(Index + 1);
 392         spin_unlock_irqrestore(q->lock, qflags);
 393         if (!(nointr & aac_config.irq_mod))
 394                 aac_adapter_notify(dev, AdapNormCmdQueue);
 395
 396         return 0;
 397 }
 398
 399 /**
 400  *      aac_rx_deliver_message
 401  *      @fib: fib to issue
 402  *
 403  *      Will send a fib, returning 0 if successful.
 404  */
 405 static int aac_rx_deliver_message(struct fib * fib)
 406 {
 407         struct aac_dev *dev = fib->dev;
 408         struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue];
 409         unsigned long qflags;
 410         u32 Index;
 411         u64 addr;
 412         volatile void __iomem *device;
 413
 414         unsigned long count = 10000000L; /* 50 seconds */
 415         spin_lock_irqsave(q->lock, qflags);
 416         q->numpending++;
 417         spin_unlock_irqrestore(q->lock, qflags);
 418         for(;;) {
 419                 Index = rx_readl(dev, MUnit.InboundQueue);
 420                 if (unlikely(Index == 0xFFFFFFFFL))
 421                         Index = rx_readl(dev, MUnit.InboundQueue);
 422                 if (likely(Index != 0xFFFFFFFFL))
 423                         break;
 424                 if (--count == 0) {
 425                         spin_lock_irqsave(q->lock, qflags);
 426                         q->numpending--;
 427                         spin_unlock_irqrestore(q->lock, qflags);
 428                         return -ETIMEDOUT;
 429                 }
 430                 udelay(5);
 431         }
 432         device = dev->base + Index;
 433         addr = fib->hw_fib_pa;
 434         writel((u32)(addr & 0xffffffff), device);
 435         device += sizeof(u32);
 436         writel((u32)(addr >> 32), device);
 437         device += sizeof(u32);
 438         writel(le16_to_cpu(fib->hw_fib_va->header.Size), device);
 439         rx_writel(dev, MUnit.InboundQueue, Index);
 440         return 0;
 441 }
 442
 443 /**
 444  *      aac_rx_ioremap
 445  *      @size: mapping resize request
 446  *
 447  */
 448 static int aac_rx_ioremap(struct aac_dev * dev, u32 size)
 449 {
 450         if (!size) {
 451                 iounmap(dev->regs.rx);
 452                 return 0;
 453         }
 454         dev->base = dev->regs.rx = ioremap(dev->scsi_host_ptr->base, size);
 455         if (dev->base == NULL)
 456                 return -1;
 457         dev->IndexRegs = &dev->regs.rx->IndexRegs;
 458         return 0;
 459 }
 460
 461 static int aac_rx_restart_adapter(struct aac_dev *dev, int bled)
 462 {
 463         u32 var;
 464
 465         if (!(dev->supplement_adapter_info.SupportedOptions2 &
 466           AAC_OPTION_MU_RESET) || (bled >= 0) || (bled == -2)) {
 467                 if (bled)
 468                         printk(KERN_ERR "%s%d: adapter kernel panic'd %x.\n",
 469                                 dev->name, dev->id, bled);
 470                 else {
 471                         bled = aac_adapter_sync_cmd(dev, IOP_RESET_ALWAYS,
 472                           0, 0, 0, 0, 0, 0, &var, NULL, NULL, NULL, NULL);
 473                         if (!bled && (var != 0x00000001) && (var != 0x3803000F))
 474                                 bled = -EINVAL;
 475                 }
 476                 if (bled && (bled != -ETIMEDOUT))
 477                         bled = aac_adapter_sync_cmd(dev, IOP_RESET,
 478                           0, 0, 0, 0, 0, 0, &var, NULL, NULL, NULL, NULL);
 479
 480                 if (bled && (bled != -ETIMEDOUT))
 481                         return -EINVAL;
 482         }
 483         if (bled || (var == 0x3803000F)) { /* USE_OTHER_METHOD */
 484                 rx_writel(dev, MUnit.reserved2, 3);
 485                 msleep(5000); /* Delay 5 seconds */
 486                 var = 0x00000001;
 487         }
 488         if (var != 0x00000001)
 489                 return -EINVAL;
 490         if (rx_readl(dev, MUnit.OMRx[0]) & KERNEL_PANIC)
 491                 return -ENODEV;
 492         if (startup_timeout < 300)
 493                 startup_timeout = 300;
 494         return 0;
 495 }
 496
 497 /**
 498  *      aac_rx_select_comm      -       Select communications method
 499  *      @dev: Adapter
 500  *      @comm: communications method
 501  */
 502
 503 int aac_rx_select_comm(struct aac_dev *dev, int comm)
 504 {
 505         switch (comm) {
 506         case AAC_COMM_PRODUCER:
 507                 dev->a_ops.adapter_enable_int = aac_rx_enable_interrupt_producer;
 508                 dev->a_ops.adapter_intr = aac_rx_intr_producer;
 509                 dev->a_ops.adapter_deliver = aac_rx_deliver_producer;
 510                 break;
 511         case AAC_COMM_MESSAGE:
 512                 dev->a_ops.adapter_enable_int = aac_rx_enable_interrupt_message;
 513                 dev->a_ops.adapter_intr = aac_rx_intr_message;
 514                 dev->a_ops.adapter_deliver = aac_rx_deliver_message;
 515                 break;
 516         default:
 517                 return 1;
 518         }
 519         return 0;
 520 }
 521
 522 /**
 523  *      aac_rx_init     -       initialize an i960 based AAC card
 524  *      @dev: device to configure
 525  *
 526  *      Allocate and set up resources for the i960 based AAC variants. The
 527  *      device_interface in the commregion will be allocated and linked
 528  *      to the comm region.
 529  */
 530
 531 int _aac_rx_init(struct aac_dev *dev)
 532 {
 533         unsigned long start;
 534         unsigned long status;
 535         int restart = 0;
 536         int instance = dev->id;
 537         const char * name = dev->name;
 538
 539         if (aac_adapter_ioremap(dev, dev->base_size)) {
 540                 printk(KERN_WARNING "%s: unable to map adapter.\n", name);
 541                 goto error_iounmap;
 542         }
 543
 544         /* Failure to reset here is an option ... */
 545         dev->a_ops.adapter_sync_cmd = rx_sync_cmd;
 546         dev->a_ops.adapter_enable_int = aac_rx_disable_interrupt;
 547         dev->OIMR = status = rx_readb (dev, MUnit.OIMR);
 548         if ((((status & 0x0c) != 0x0c) || aac_reset_devices || reset_devices) &&
 549           !aac_rx_restart_adapter(dev, 0))
 550                 /* Make sure the Hardware FIFO is empty */
 551                 while ((++restart < 512) &&
 552                   (rx_readl(dev, MUnit.OutboundQueue) != 0xFFFFFFFFL));
 553         /*
 554          *      Check to see if the board panic'd while booting.
 555          */
 556         status = rx_readl(dev, MUnit.OMRx[0]);
 557         if (status & KERNEL_PANIC) {
 558                 if (aac_rx_restart_adapter(dev, aac_rx_check_health(dev)))
 559                         goto error_iounmap;
 560                 ++restart;
 561         }
 562         /*
 563          *      Check to see if the board failed any self tests.
 564          */
 565         status = rx_readl(dev, MUnit.OMRx[0]);
 566         if (status & SELF_TEST_FAILED) {
 567                 printk(KERN_ERR "%s%d: adapter self-test failed.\n", dev->name, instance);
 568                 goto error_iounmap;
 569         }
 570         /*
 571          *      Check to see if the monitor panic'd while booting.
 572          */
 573         if (status & MONITOR_PANIC) {
 574                 printk(KERN_ERR "%s%d: adapter monitor panic.\n", dev->name, instance);
 575                 goto error_iounmap;
 576         }
 577         start = jiffies;
 578         /*
 579          *      Wait for the adapter to be up and running. Wait up to 3 minutes
 580          */
 581         while (!((status = rx_readl(dev, MUnit.OMRx[0])) & KERNEL_UP_AND_RUNNING))
 582         {
 583                 if ((restart &&
 584                   (status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC))) ||
 585                   time_after(jiffies, start+HZ*startup_timeout)) {
 586                         printk(KERN_ERR "%s%d: adapter kernel failed to start, init status = %lx.\n",
 587                                         dev->name, instance, status);
 588                         goto error_iounmap;
 589                 }
 590                 if (!restart &&
 591                   ((status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC)) ||
 592                   time_after(jiffies, start + HZ *
 593                   ((startup_timeout > 60)
 594                     ? (startup_timeout - 60)
 595                     : (startup_timeout / 2))))) {
 596                         if (likely(!aac_rx_restart_adapter(dev, aac_rx_check_health(dev))))
 597                                 start = jiffies;
 598                         ++restart;
 599                 }
 600                 msleep(1);
 601         }
 602         if (restart && aac_commit)
 603                 aac_commit = 1;
 604         /*
 605          *      Fill in the common function dispatch table.
 606          */
 607         dev->a_ops.adapter_interrupt = aac_rx_interrupt_adapter;
 608         dev->a_ops.adapter_disable_int = aac_rx_disable_interrupt;
 609         dev->a_ops.adapter_notify = aac_rx_notify_adapter;
 610         dev->a_ops.adapter_sync_cmd = rx_sync_cmd;
 611         dev->a_ops.adapter_check_health = aac_rx_check_health;
 612         dev->a_ops.adapter_restart = aac_rx_restart_adapter;
 613
 614         /*
 615          *      First clear out all interrupts.  Then enable the one's that we
 616          *      can handle.
 617          */
 618         aac_adapter_comm(dev, AAC_COMM_PRODUCER);
 619         aac_adapter_disable_int(dev);
 620         rx_writel(dev, MUnit.ODR, 0xffffffff);
 621         aac_adapter_enable_int(dev);
 622
 623         if (aac_init_adapter(dev) == NULL)
 624                 goto error_iounmap;
 625         aac_adapter_comm(dev, dev->comm_interface);
 626         dev->msi = aac_msi && !pci_enable_msi(dev->pdev);
 627         if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr,
 628                         IRQF_SHARED|IRQF_DISABLED, "aacraid", dev) < 0) {
 629                 if (dev->msi)
 630                         pci_disable_msi(dev->pdev);
 631                 printk(KERN_ERR "%s%d: Interrupt unavailable.\n",
 632                         name, instance);
 633                 goto error_iounmap;
 634         }
 635         aac_adapter_enable_int(dev);
 636         /*
 637          *      Tell the adapter that all is configured, and it can
 638          * start accepting requests
 639          */
 640         aac_rx_start_adapter(dev);
 641
 642         return 0;
 643
 644 error_iounmap:
 645
 646         return -1;
 647 }
 648
 649 int aac_rx_init(struct aac_dev *dev)
 650 {
 651         /*
 652          *      Fill in the function dispatch table.
 653          */
 654         dev->a_ops.adapter_ioremap = aac_rx_ioremap;
 655         dev->a_ops.adapter_comm = aac_rx_select_comm;
 656
 657         return _aac_rx_init(dev);
 658 }