git.oblomov.eu Git - linux-2.6/blob - drivers/scsi/aacraid/rx.c

   1 /*
   2  *      Adaptec AAC series RAID controller driver
   3  *      (c) Copyright 2001 Red Hat Inc. <alan@redhat.com>
   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/slab.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         struct aac_dev *dev = dev_id;
  89         u32 Index = rx_readl(dev, MUnit.OutboundQueue);
  90         if (unlikely(Index == 0xFFFFFFFFL))
  91                 Index = rx_readl(dev, MUnit.OutboundQueue);
  92         if (likely(Index != 0xFFFFFFFFL)) {
  93                 do {
  94                         if (unlikely(aac_intr_normal(dev, Index))) {
  95                                 rx_writel(dev, MUnit.OutboundQueue, Index);
  96                                 rx_writel(dev, MUnit.ODR, DoorBellAdapterNormRespReady);
  97                         }
  98                         Index = rx_readl(dev, MUnit.OutboundQueue);
  99                 } while (Index != 0xFFFFFFFFL);
 100                 return IRQ_HANDLED;
 101         }
 102         return IRQ_NONE;
 103 }
 104
 105 /**
 106  *      aac_rx_disable_interrupt        -       Disable interrupts
 107  *      @dev: Adapter
 108  */
 109
 110 static void aac_rx_disable_interrupt(struct aac_dev *dev)
 111 {
 112         rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xff);
 113 }
 114
 115 /**
 116  *      aac_rx_enable_interrupt_producer        -       Enable interrupts
 117  *      @dev: Adapter
 118  */
 119
 120 static void aac_rx_enable_interrupt_producer(struct aac_dev *dev)
 121 {
 122         rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xfb);
 123 }
 124
 125 /**
 126  *      aac_rx_enable_interrupt_message -       Enable interrupts
 127  *      @dev: Adapter
 128  */
 129
 130 static void aac_rx_enable_interrupt_message(struct aac_dev *dev)
 131 {
 132         rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xf7);
 133 }
 134
 135 /**
 136  *      rx_sync_cmd     -       send a command and wait
 137  *      @dev: Adapter
 138  *      @command: Command to execute
 139  *      @p1: first parameter
 140  *      @ret: adapter status
 141  *
 142  *      This routine will send a synchronous command to the adapter and wait
 143  *      for its completion.
 144  */
 145
 146 static int rx_sync_cmd(struct aac_dev *dev, u32 command,
 147         u32 p1, u32 p2, u32 p3, u32 p4, u32 p5, u32 p6,
 148         u32 *status, u32 * r1, u32 * r2, u32 * r3, u32 * r4)
 149 {
 150         unsigned long start;
 151         int ok;
 152         /*
 153          *      Write the command into Mailbox 0
 154          */
 155         writel(command, &dev->IndexRegs->Mailbox[0]);
 156         /*
 157          *      Write the parameters into Mailboxes 1 - 6
 158          */
 159         writel(p1, &dev->IndexRegs->Mailbox[1]);
 160         writel(p2, &dev->IndexRegs->Mailbox[2]);
 161         writel(p3, &dev->IndexRegs->Mailbox[3]);
 162         writel(p4, &dev->IndexRegs->Mailbox[4]);
 163         /*
 164          *      Clear the synch command doorbell to start on a clean slate.
 165          */
 166         rx_writel(dev, OutboundDoorbellReg, OUTBOUNDDOORBELL_0);
 167         /*
 168          *      Disable doorbell interrupts
 169          */
 170         rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xff);
 171         /*
 172          *      Force the completion of the mask register write before issuing
 173          *      the interrupt.
 174          */
 175         rx_readb (dev, MUnit.OIMR);
 176         /*
 177          *      Signal that there is a new synch command
 178          */
 179         rx_writel(dev, InboundDoorbellReg, INBOUNDDOORBELL_0);
 180
 181         ok = 0;
 182         start = jiffies;
 183
 184         /*
 185          *      Wait up to 30 seconds
 186          */
 187         while (time_before(jiffies, start+30*HZ))
 188         {
 189                 udelay(5);      /* Delay 5 microseconds to let Mon960 get info. */
 190                 /*
 191                  *      Mon960 will set doorbell0 bit when it has completed the command.
 192                  */
 193                 if (rx_readl(dev, OutboundDoorbellReg) & OUTBOUNDDOORBELL_0) {
 194                         /*
 195                          *      Clear the doorbell.
 196                          */
 197                         rx_writel(dev, OutboundDoorbellReg, OUTBOUNDDOORBELL_0);
 198                         ok = 1;
 199                         break;
 200                 }
 201                 /*
 202                  *      Yield the processor in case we are slow
 203                  */
 204                 msleep(1);
 205         }
 206         if (unlikely(ok != 1)) {
 207                 /*
 208                  *      Restore interrupt mask even though we timed out
 209                  */
 210                 aac_adapter_enable_int(dev);
 211                 return -ETIMEDOUT;
 212         }
 213         /*
 214          *      Pull the synch status from Mailbox 0.
 215          */
 216         if (status)
 217                 *status = readl(&dev->IndexRegs->Mailbox[0]);
 218         if (r1)
 219                 *r1 = readl(&dev->IndexRegs->Mailbox[1]);
 220         if (r2)
 221                 *r2 = readl(&dev->IndexRegs->Mailbox[2]);
 222         if (r3)
 223                 *r3 = readl(&dev->IndexRegs->Mailbox[3]);
 224         if (r4)
 225                 *r4 = readl(&dev->IndexRegs->Mailbox[4]);
 226         /*
 227          *      Clear the synch command doorbell.
 228          */
 229         rx_writel(dev, OutboundDoorbellReg, OUTBOUNDDOORBELL_0);
 230         /*
 231          *      Restore interrupt mask
 232          */
 233         aac_adapter_enable_int(dev);
 234         return 0;
 235
 236 }
 237
 238 /**
 239  *      aac_rx_interrupt_adapter        -       interrupt adapter
 240  *      @dev: Adapter
 241  *
 242  *      Send an interrupt to the i960 and breakpoint it.
 243  */
 244
 245 static void aac_rx_interrupt_adapter(struct aac_dev *dev)
 246 {
 247         rx_sync_cmd(dev, BREAKPOINT_REQUEST, 0, 0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL);
 248 }
 249
 250 /**
 251  *      aac_rx_notify_adapter           -       send an event to the adapter
 252  *      @dev: Adapter
 253  *      @event: Event to send
 254  *
 255  *      Notify the i960 that something it probably cares about has
 256  *      happened.
 257  */
 258
 259 static void aac_rx_notify_adapter(struct aac_dev *dev, u32 event)
 260 {
 261         switch (event) {
 262
 263         case AdapNormCmdQue:
 264                 rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_1);
 265                 break;
 266         case HostNormRespNotFull:
 267                 rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_4);
 268                 break;
 269         case AdapNormRespQue:
 270                 rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_2);
 271                 break;
 272         case HostNormCmdNotFull:
 273                 rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_3);
 274                 break;
 275         case HostShutdown:
 276                 break;
 277         case FastIo:
 278                 rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_6);
 279                 break;
 280         case AdapPrintfDone:
 281                 rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_5);
 282                 break;
 283         default:
 284                 BUG();
 285                 break;
 286         }
 287 }
 288
 289 /**
 290  *      aac_rx_start_adapter            -       activate adapter
 291  *      @dev:   Adapter
 292  *
 293  *      Start up processing on an i960 based AAC adapter
 294  */
 295
 296 static void aac_rx_start_adapter(struct aac_dev *dev)
 297 {
 298         struct aac_init *init;
 299
 300         init = dev->init;
 301         init->HostElapsedSeconds = cpu_to_le32(get_seconds());
 302         // We can only use a 32 bit address here
 303         rx_sync_cmd(dev, INIT_STRUCT_BASE_ADDRESS, (u32)(ulong)dev->init_pa,
 304           0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL);
 305 }
 306
 307 /**
 308  *      aac_rx_check_health
 309  *      @dev: device to check if healthy
 310  *
 311  *      Will attempt to determine if the specified adapter is alive and
 312  *      capable of handling requests, returning 0 if alive.
 313  */
 314 static int aac_rx_check_health(struct aac_dev *dev)
 315 {
 316         u32 status = rx_readl(dev, MUnit.OMRx[0]);
 317
 318         /*
 319          *      Check to see if the board failed any self tests.
 320          */
 321         if (unlikely(status & SELF_TEST_FAILED))
 322                 return -1;
 323         /*
 324          *      Check to see if the board panic'd.
 325          */
 326         if (unlikely(status & KERNEL_PANIC)) {
 327                 char * buffer;
 328                 struct POSTSTATUS {
 329                         __le32 Post_Command;
 330                         __le32 Post_Address;
 331                 } * post;
 332                 dma_addr_t paddr, baddr;
 333                 int ret;
 334
 335                 if (likely((status & 0xFF000000L) == 0xBC000000L))
 336                         return (status >> 16) & 0xFF;
 337                 buffer = pci_alloc_consistent(dev->pdev, 512, &baddr);
 338                 ret = -2;
 339                 if (unlikely(buffer == NULL))
 340                         return ret;
 341                 post = pci_alloc_consistent(dev->pdev,
 342                   sizeof(struct POSTSTATUS), &paddr);
 343                 if (unlikely(post == NULL)) {
 344                         pci_free_consistent(dev->pdev, 512, buffer, baddr);
 345                         return ret;
 346                 }
 347                 memset(buffer, 0, 512);
 348                 post->Post_Command = cpu_to_le32(COMMAND_POST_RESULTS);
 349                 post->Post_Address = cpu_to_le32(baddr);
 350                 rx_writel(dev, MUnit.IMRx[0], paddr);
 351                 rx_sync_cmd(dev, COMMAND_POST_RESULTS, baddr, 0, 0, 0, 0, 0,
 352                   NULL, NULL, NULL, NULL, NULL);
 353                 pci_free_consistent(dev->pdev, sizeof(struct POSTSTATUS),
 354                   post, paddr);
 355                 if (likely((buffer[0] == '0') && ((buffer[1] == 'x') || (buffer[1] == 'X')))) {
 356                         ret = (buffer[2] <= '9') ? (buffer[2] - '0') : (buffer[2] - 'A' + 10);
 357                         ret <<= 4;
 358                         ret += (buffer[3] <= '9') ? (buffer[3] - '0') : (buffer[3] - 'A' + 10);
 359                 }
 360                 pci_free_consistent(dev->pdev, 512, buffer, baddr);
 361                 return ret;
 362         }
 363         /*
 364          *      Wait for the adapter to be up and running.
 365          */
 366         if (unlikely(!(status & KERNEL_UP_AND_RUNNING)))
 367                 return -3;
 368         /*
 369          *      Everything is OK
 370          */
 371         return 0;
 372 }
 373
 374 /**
 375  *      aac_rx_deliver_producer
 376  *      @fib: fib to issue
 377  *
 378  *      Will send a fib, returning 0 if successful.
 379  */
 380 int aac_rx_deliver_producer(struct fib * fib)
 381 {
 382         struct aac_dev *dev = fib->dev;
 383         struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue];
 384         unsigned long qflags;
 385         u32 Index;
 386         unsigned long nointr = 0;
 387
 388         spin_lock_irqsave(q->lock, qflags);
 389         aac_queue_get( dev, &Index, AdapNormCmdQueue, fib->hw_fib_va, 1, fib, &nointr);
 390
 391         q->numpending++;
 392         *(q->headers.producer) = cpu_to_le32(Index + 1);
 393         spin_unlock_irqrestore(q->lock, qflags);
 394         if (!(nointr & aac_config.irq_mod))
 395                 aac_adapter_notify(dev, AdapNormCmdQueue);
 396
 397         return 0;
 398 }
 399
 400 /**
 401  *      aac_rx_deliver_message
 402  *      @fib: fib to issue
 403  *
 404  *      Will send a fib, returning 0 if successful.
 405  */
 406 static int aac_rx_deliver_message(struct fib * fib)
 407 {
 408         struct aac_dev *dev = fib->dev;
 409         struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue];
 410         unsigned long qflags;
 411         u32 Index;
 412         u64 addr;
 413         volatile void __iomem *device;
 414
 415         unsigned long count = 10000000L; /* 50 seconds */
 416         spin_lock_irqsave(q->lock, qflags);
 417         q->numpending++;
 418         spin_unlock_irqrestore(q->lock, qflags);
 419         for(;;) {
 420                 Index = rx_readl(dev, MUnit.InboundQueue);
 421                 if (unlikely(Index == 0xFFFFFFFFL))
 422                         Index = rx_readl(dev, MUnit.InboundQueue);
 423                 if (likely(Index != 0xFFFFFFFFL))
 424                         break;
 425                 if (--count == 0) {
 426                         spin_lock_irqsave(q->lock, qflags);
 427                         q->numpending--;
 428                         spin_unlock_irqrestore(q->lock, qflags);
 429                         return -ETIMEDOUT;
 430                 }
 431                 udelay(5);
 432         }
 433         device = dev->base + Index;
 434         addr = fib->hw_fib_pa;
 435         writel((u32)(addr & 0xffffffff), device);
 436         device += sizeof(u32);
 437         writel((u32)(addr >> 32), device);
 438         device += sizeof(u32);
 439         writel(le16_to_cpu(fib->hw_fib_va->header.Size), device);
 440         rx_writel(dev, MUnit.InboundQueue, Index);
 441         return 0;
 442 }
 443
 444 /**
 445  *      aac_rx_ioremap
 446  *      @size: mapping resize request
 447  *
 448  */
 449 static int aac_rx_ioremap(struct aac_dev * dev, u32 size)
 450 {
 451         if (!size) {
 452                 iounmap(dev->regs.rx);
 453                 return 0;
 454         }
 455         dev->base = dev->regs.rx = ioremap(dev->scsi_host_ptr->base, size);
 456         if (dev->base == NULL)
 457                 return -1;
 458         dev->IndexRegs = &dev->regs.rx->IndexRegs;
 459         return 0;
 460 }
 461
 462 static int aac_rx_restart_adapter(struct aac_dev *dev, int bled)
 463 {
 464         u32 var;
 465
 466         if (!(dev->supplement_adapter_info.SupportedOptions2 &
 467           AAC_OPTION_MU_RESET) || (bled >= 0) || (bled == -2)) {
 468                 if (bled)
 469                         printk(KERN_ERR "%s%d: adapter kernel panic'd %x.\n",
 470                                 dev->name, dev->id, bled);
 471                 else {
 472                         bled = aac_adapter_sync_cmd(dev, IOP_RESET_ALWAYS,
 473                           0, 0, 0, 0, 0, 0, &var, NULL, NULL, NULL, NULL);
 474                         if (!bled && (var != 0x00000001) && (var != 0x3803000F))
 475                                 bled = -EINVAL;
 476                 }
 477                 if (bled && (bled != -ETIMEDOUT))
 478                         bled = aac_adapter_sync_cmd(dev, IOP_RESET,
 479                           0, 0, 0, 0, 0, 0, &var, NULL, NULL, NULL, NULL);
 480
 481                 if (bled && (bled != -ETIMEDOUT))
 482                         return -EINVAL;
 483         }
 484         if (bled || (var == 0x3803000F)) { /* USE_OTHER_METHOD */
 485                 rx_writel(dev, MUnit.reserved2, 3);
 486                 msleep(5000); /* Delay 5 seconds */
 487                 var = 0x00000001;
 488         }
 489         if (var != 0x00000001)
 490                 return -EINVAL;
 491         if (rx_readl(dev, MUnit.OMRx[0]) & KERNEL_PANIC)
 492                 return -ENODEV;
 493         if (startup_timeout < 300)
 494                 startup_timeout = 300;
 495         return 0;
 496 }
 497
 498 /**
 499  *      aac_rx_select_comm      -       Select communications method
 500  *      @dev: Adapter
 501  *      @comm: communications method
 502  */
 503
 504 int aac_rx_select_comm(struct aac_dev *dev, int comm)
 505 {
 506         switch (comm) {
 507         case AAC_COMM_PRODUCER:
 508                 dev->a_ops.adapter_enable_int = aac_rx_enable_interrupt_producer;
 509                 dev->a_ops.adapter_intr = aac_rx_intr_producer;
 510                 dev->a_ops.adapter_deliver = aac_rx_deliver_producer;
 511                 break;
 512         case AAC_COMM_MESSAGE:
 513                 dev->a_ops.adapter_enable_int = aac_rx_enable_interrupt_message;
 514                 dev->a_ops.adapter_intr = aac_rx_intr_message;
 515                 dev->a_ops.adapter_deliver = aac_rx_deliver_message;
 516                 break;
 517         default:
 518                 return 1;
 519         }
 520         return 0;
 521 }
 522
 523 /**
 524  *      aac_rx_init     -       initialize an i960 based AAC card
 525  *      @dev: device to configure
 526  *
 527  *      Allocate and set up resources for the i960 based AAC variants. The
 528  *      device_interface in the commregion will be allocated and linked
 529  *      to the comm region.
 530  */
 531
 532 int _aac_rx_init(struct aac_dev *dev)
 533 {
 534         unsigned long start;
 535         unsigned long status;
 536         int restart = 0;
 537         int instance = dev->id;
 538         const char * name = dev->name;
 539
 540         if (aac_adapter_ioremap(dev, dev->base_size)) {
 541                 printk(KERN_WARNING "%s: unable to map adapter.\n", name);
 542                 goto error_iounmap;
 543         }
 544
 545         /* Failure to reset here is an option ... */
 546         dev->a_ops.adapter_sync_cmd = rx_sync_cmd;
 547         dev->a_ops.adapter_enable_int = aac_rx_disable_interrupt;
 548         dev->OIMR = status = rx_readb (dev, MUnit.OIMR);
 549         if ((((status & 0x0c) != 0x0c) || aac_reset_devices || reset_devices) &&
 550           !aac_rx_restart_adapter(dev, 0))
 551                 /* Make sure the Hardware FIFO is empty */
 552                 while ((++restart < 512) &&
 553                   (rx_readl(dev, MUnit.OutboundQueue) != 0xFFFFFFFFL));
 554         /*
 555          *      Check to see if the board panic'd while booting.
 556          */
 557         status = rx_readl(dev, MUnit.OMRx[0]);
 558         if (status & KERNEL_PANIC) {
 559                 if (aac_rx_restart_adapter(dev, aac_rx_check_health(dev)))
 560                         goto error_iounmap;
 561                 ++restart;
 562         }
 563         /*
 564          *      Check to see if the board failed any self tests.
 565          */
 566         status = rx_readl(dev, MUnit.OMRx[0]);
 567         if (status & SELF_TEST_FAILED) {
 568                 printk(KERN_ERR "%s%d: adapter self-test failed.\n", dev->name, instance);
 569                 goto error_iounmap;
 570         }
 571         /*
 572          *      Check to see if the monitor panic'd while booting.
 573          */
 574         if (status & MONITOR_PANIC) {
 575                 printk(KERN_ERR "%s%d: adapter monitor panic.\n", dev->name, instance);
 576                 goto error_iounmap;
 577         }
 578         start = jiffies;
 579         /*
 580          *      Wait for the adapter to be up and running. Wait up to 3 minutes
 581          */
 582         while (!((status = rx_readl(dev, MUnit.OMRx[0])) & KERNEL_UP_AND_RUNNING))
 583         {
 584                 if ((restart &&
 585                   (status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC))) ||
 586                   time_after(jiffies, start+HZ*startup_timeout)) {
 587                         printk(KERN_ERR "%s%d: adapter kernel failed to start, init status = %lx.\n",
 588                                         dev->name, instance, status);
 589                         goto error_iounmap;
 590                 }
 591                 if (!restart &&
 592                   ((status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC)) ||
 593                   time_after(jiffies, start + HZ *
 594                   ((startup_timeout > 60)
 595                     ? (startup_timeout - 60)
 596                     : (startup_timeout / 2))))) {
 597                         if (likely(!aac_rx_restart_adapter(dev, aac_rx_check_health(dev))))
 598                                 start = jiffies;
 599                         ++restart;
 600                 }
 601                 msleep(1);
 602         }
 603         if (restart && aac_commit)
 604                 aac_commit = 1;
 605         /*
 606          *      Fill in the common function dispatch table.
 607          */
 608         dev->a_ops.adapter_interrupt = aac_rx_interrupt_adapter;
 609         dev->a_ops.adapter_disable_int = aac_rx_disable_interrupt;
 610         dev->a_ops.adapter_notify = aac_rx_notify_adapter;
 611         dev->a_ops.adapter_sync_cmd = rx_sync_cmd;
 612         dev->a_ops.adapter_check_health = aac_rx_check_health;
 613         dev->a_ops.adapter_restart = aac_rx_restart_adapter;
 614
 615         /*
 616          *      First clear out all interrupts.  Then enable the one's that we
 617          *      can handle.
 618          */
 619         aac_adapter_comm(dev, AAC_COMM_PRODUCER);
 620         aac_adapter_disable_int(dev);
 621         rx_writel(dev, MUnit.ODR, 0xffffffff);
 622         aac_adapter_enable_int(dev);
 623
 624         if (aac_init_adapter(dev) == NULL)
 625                 goto error_iounmap;
 626         aac_adapter_comm(dev, dev->comm_interface);
 627         dev->msi = aac_msi && !pci_enable_msi(dev->pdev);
 628         if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr,
 629                         IRQF_SHARED|IRQF_DISABLED, "aacraid", dev) < 0) {
 630                 if (dev->msi)
 631                         pci_disable_msi(dev->pdev);
 632                 printk(KERN_ERR "%s%d: Interrupt unavailable.\n",
 633                         name, instance);
 634                 goto error_iounmap;
 635         }
 636         aac_adapter_enable_int(dev);
 637         /*
 638          *      Tell the adapter that all is configured, and it can
 639          * start accepting requests
 640          */
 641         aac_rx_start_adapter(dev);
 642
 643         return 0;
 644
 645 error_iounmap:
 646
 647         return -1;
 648 }
 649
 650 int aac_rx_init(struct aac_dev *dev)
 651 {
 652         /*
 653          *      Fill in the function dispatch table.
 654          */
 655         dev->a_ops.adapter_ioremap = aac_rx_ioremap;
 656         dev->a_ops.adapter_comm = aac_rx_select_comm;
 657
 658         return _aac_rx_init(dev);
 659 }