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  *               2010-2015 PMC-Sierra, Inc. (aacraid@pmc-sierra.com)
  10  *               2016-2017 Microsemi Corp. (aacraid@microsemi.com)
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License as published by
  14  * the Free Software Foundation; either version 2, or (at your option)
  15  * any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with this program; see the file COPYING.  If not, write to
  24  * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
  25  *
  26  * Module Name:
  27  *  rx.c
  28  *
  29  * Abstract: Hardware miniport for Drawbridge specific hardware functions.
  30  *
  31  */
  32
  33 #include <linux/kernel.h>
  34 #include <linux/init.h>
  35 #include <linux/types.h>
  36 #include <linux/pci.h>
  37 #include <linux/spinlock.h>
  38 #include <linux/blkdev.h>
  39 #include <linux/delay.h>
  40 #include <linux/completion.h>
  41 #include <linux/time.h>
  42 #include <linux/interrupt.h>
  43
  44 #include <scsi/scsi_host.h>
  45
  46 #include "aacraid.h"
  47
  48 static irqreturn_t aac_rx_intr_producer(int irq, void *dev_id)
  49 {
  50         struct aac_dev *dev = dev_id;
  51         unsigned long bellbits;
  52         u8 intstat = rx_readb(dev, MUnit.OISR);
  53
  54         /*
  55          *      Read mask and invert because drawbridge is reversed.
  56          *      This allows us to only service interrupts that have
  57          *      been enabled.
  58          *      Check to see if this is our interrupt.  If it isn't just return
  59          */
  60         if (likely(intstat & ~(dev->OIMR))) {
  61                 bellbits = rx_readl(dev, OutboundDoorbellReg);
  62                 if (unlikely(bellbits & DoorBellPrintfReady)) {
  63                         aac_printf(dev, readl (&dev->IndexRegs->Mailbox[5]));
  64                         rx_writel(dev, MUnit.ODR,DoorBellPrintfReady);
  65                         rx_writel(dev, InboundDoorbellReg,DoorBellPrintfDone);
  66                 }
  67                 else if (unlikely(bellbits & DoorBellAdapterNormCmdReady)) {
  68                         rx_writel(dev, MUnit.ODR, DoorBellAdapterNormCmdReady);
  69                         aac_command_normal(&dev->queues->queue[HostNormCmdQueue]);
  70                 }
  71                 else if (likely(bellbits & DoorBellAdapterNormRespReady)) {
  72                         rx_writel(dev, MUnit.ODR,DoorBellAdapterNormRespReady);
  73                         aac_response_normal(&dev->queues->queue[HostNormRespQueue]);
  74                 }
  75                 else if (unlikely(bellbits & DoorBellAdapterNormCmdNotFull)) {
  76                         rx_writel(dev, MUnit.ODR, DoorBellAdapterNormCmdNotFull);
  77                 }
  78                 else if (unlikely(bellbits & DoorBellAdapterNormRespNotFull)) {
  79                         rx_writel(dev, MUnit.ODR, DoorBellAdapterNormCmdNotFull);
  80                         rx_writel(dev, MUnit.ODR, DoorBellAdapterNormRespNotFull);
  81                 }
  82                 return IRQ_HANDLED;
  83         }
  84         return IRQ_NONE;
  85 }
  86
  87 static irqreturn_t aac_rx_intr_message(int irq, void *dev_id)
  88 {
  89         int isAif, isFastResponse, isSpecial;
  90         struct aac_dev *dev = dev_id;
  91         u32 Index = rx_readl(dev, MUnit.OutboundQueue);
  92         if (unlikely(Index == 0xFFFFFFFFL))
  93                 Index = rx_readl(dev, MUnit.OutboundQueue);
  94         if (likely(Index != 0xFFFFFFFFL)) {
  95                 do {
  96                         isAif = isFastResponse = isSpecial = 0;
  97                         if (Index & 0x00000002L) {
  98                                 isAif = 1;
  99                                 if (Index == 0xFFFFFFFEL)
 100                                         isSpecial = 1;
 101                                 Index &= ~0x00000002L;
 102                         } else {
 103                                 if (Index & 0x00000001L)
 104                                         isFastResponse = 1;
 105                                 Index >>= 2;
 106                         }
 107                         if (!isSpecial) {
 108                                 if (unlikely(aac_intr_normal(dev,
 109                                                 Index, isAif,
 110                                                 isFastResponse, NULL))) {
 111                                         rx_writel(dev,
 112                                                 MUnit.OutboundQueue,
 113                                                 Index);
 114                                         rx_writel(dev,
 115                                                 MUnit.ODR,
 116                                                 DoorBellAdapterNormRespReady);
 117                                 }
 118                         }
 119                         Index = rx_readl(dev, MUnit.OutboundQueue);
 120                 } while (Index != 0xFFFFFFFFL);
 121                 return IRQ_HANDLED;
 122         }
 123         return IRQ_NONE;
 124 }
 125
 126 /**
 127  *      aac_rx_disable_interrupt        -       Disable interrupts
 128  *      @dev: Adapter
 129  */
 130
 131 static void aac_rx_disable_interrupt(struct aac_dev *dev)
 132 {
 133         rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xff);
 134 }
 135
 136 /**
 137  *      aac_rx_enable_interrupt_producer        -       Enable interrupts
 138  *      @dev: Adapter
 139  */
 140
 141 static void aac_rx_enable_interrupt_producer(struct aac_dev *dev)
 142 {
 143         rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xfb);
 144 }
 145
 146 /**
 147  *      aac_rx_enable_interrupt_message -       Enable interrupts
 148  *      @dev: Adapter
 149  */
 150
 151 static void aac_rx_enable_interrupt_message(struct aac_dev *dev)
 152 {
 153         rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xf7);
 154 }
 155
 156 /**
 157  *      rx_sync_cmd     -       send a command and wait
 158  *      @dev: Adapter
 159  *      @command: Command to execute
 160  *      @p1: first parameter
 161  *      @ret: adapter status
 162  *
 163  *      This routine will send a synchronous command to the adapter and wait
 164  *      for its completion.
 165  */
 166
 167 static int rx_sync_cmd(struct aac_dev *dev, u32 command,
 168         u32 p1, u32 p2, u32 p3, u32 p4, u32 p5, u32 p6,
 169         u32 *status, u32 * r1, u32 * r2, u32 * r3, u32 * r4)
 170 {
 171         unsigned long start;
 172         int ok;
 173         /*
 174          *      Write the command into Mailbox 0
 175          */
 176         writel(command, &dev->IndexRegs->Mailbox[0]);
 177         /*
 178          *      Write the parameters into Mailboxes 1 - 6
 179          */
 180         writel(p1, &dev->IndexRegs->Mailbox[1]);
 181         writel(p2, &dev->IndexRegs->Mailbox[2]);
 182         writel(p3, &dev->IndexRegs->Mailbox[3]);
 183         writel(p4, &dev->IndexRegs->Mailbox[4]);
 184         /*
 185          *      Clear the synch command doorbell to start on a clean slate.
 186          */
 187         rx_writel(dev, OutboundDoorbellReg, OUTBOUNDDOORBELL_0);
 188         /*
 189          *      Disable doorbell interrupts
 190          */
 191         rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xff);
 192         /*
 193          *      Force the completion of the mask register write before issuing
 194          *      the interrupt.
 195          */
 196         rx_readb (dev, MUnit.OIMR);
 197         /*
 198          *      Signal that there is a new synch command
 199          */
 200         rx_writel(dev, InboundDoorbellReg, INBOUNDDOORBELL_0);
 201
 202         ok = 0;
 203         start = jiffies;
 204
 205         /*
 206          *      Wait up to 30 seconds
 207          */
 208         while (time_before(jiffies, start+30*HZ))
 209         {
 210                 udelay(5);      /* Delay 5 microseconds to let Mon960 get info. */
 211                 /*
 212                  *      Mon960 will set doorbell0 bit when it has completed the command.
 213                  */
 214                 if (rx_readl(dev, OutboundDoorbellReg) & OUTBOUNDDOORBELL_0) {
 215                         /*
 216                          *      Clear the doorbell.
 217                          */
 218                         rx_writel(dev, OutboundDoorbellReg, OUTBOUNDDOORBELL_0);
 219                         ok = 1;
 220                         break;
 221                 }
 222                 /*
 223                  *      Yield the processor in case we are slow
 224                  */
 225                 msleep(1);
 226         }
 227         if (unlikely(ok != 1)) {
 228                 /*
 229                  *      Restore interrupt mask even though we timed out
 230                  */
 231                 aac_adapter_enable_int(dev);
 232                 return -ETIMEDOUT;
 233         }
 234         /*
 235          *      Pull the synch status from Mailbox 0.
 236          */
 237         if (status)
 238                 *status = readl(&dev->IndexRegs->Mailbox[0]);
 239         if (r1)
 240                 *r1 = readl(&dev->IndexRegs->Mailbox[1]);
 241         if (r2)
 242                 *r2 = readl(&dev->IndexRegs->Mailbox[2]);
 243         if (r3)
 244                 *r3 = readl(&dev->IndexRegs->Mailbox[3]);
 245         if (r4)
 246                 *r4 = readl(&dev->IndexRegs->Mailbox[4]);
 247         /*
 248          *      Clear the synch command doorbell.
 249          */
 250         rx_writel(dev, OutboundDoorbellReg, OUTBOUNDDOORBELL_0);
 251         /*
 252          *      Restore interrupt mask
 253          */
 254         aac_adapter_enable_int(dev);
 255         return 0;
 256
 257 }
 258
 259 /**
 260  *      aac_rx_interrupt_adapter        -       interrupt adapter
 261  *      @dev: Adapter
 262  *
 263  *      Send an interrupt to the i960 and breakpoint it.
 264  */
 265
 266 static void aac_rx_interrupt_adapter(struct aac_dev *dev)
 267 {
 268         rx_sync_cmd(dev, BREAKPOINT_REQUEST, 0, 0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL);
 269 }
 270
 271 /**
 272  *      aac_rx_notify_adapter           -       send an event to the adapter
 273  *      @dev: Adapter
 274  *      @event: Event to send
 275  *
 276  *      Notify the i960 that something it probably cares about has
 277  *      happened.
 278  */
 279
 280 static void aac_rx_notify_adapter(struct aac_dev *dev, u32 event)
 281 {
 282         switch (event) {
 283
 284         case AdapNormCmdQue:
 285                 rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_1);
 286                 break;
 287         case HostNormRespNotFull:
 288                 rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_4);
 289                 break;
 290         case AdapNormRespQue:
 291                 rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_2);
 292                 break;
 293         case HostNormCmdNotFull:
 294                 rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_3);
 295                 break;
 296         case HostShutdown:
 297                 break;
 298         case FastIo:
 299                 rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_6);
 300                 break;
 301         case AdapPrintfDone:
 302                 rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_5);
 303                 break;
 304         default:
 305                 BUG();
 306                 break;
 307         }
 308 }
 309
 310 /**
 311  *      aac_rx_start_adapter            -       activate adapter
 312  *      @dev:   Adapter
 313  *
 314  *      Start up processing on an i960 based AAC adapter
 315  */
 316
 317 static void aac_rx_start_adapter(struct aac_dev *dev)
 318 {
 319         union aac_init *init;
 320
 321         init = dev->init;
 322         init->r7.host_elapsed_seconds = cpu_to_le32(get_seconds());
 323         // We can only use a 32 bit address here
 324         rx_sync_cmd(dev, INIT_STRUCT_BASE_ADDRESS, (u32)(ulong)dev->init_pa,
 325           0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL);
 326 }
 327
 328 /**
 329  *      aac_rx_check_health
 330  *      @dev: device to check if healthy
 331  *
 332  *      Will attempt to determine if the specified adapter is alive and
 333  *      capable of handling requests, returning 0 if alive.
 334  */
 335 static int aac_rx_check_health(struct aac_dev *dev)
 336 {
 337         u32 status = rx_readl(dev, MUnit.OMRx[0]);
 338
 339         /*
 340          *      Check to see if the board failed any self tests.
 341          */
 342         if (unlikely(status & SELF_TEST_FAILED))
 343                 return -1;
 344         /*
 345          *      Check to see if the board panic'd.
 346          */
 347         if (unlikely(status & KERNEL_PANIC)) {
 348                 char * buffer;
 349                 struct POSTSTATUS {
 350                         __le32 Post_Command;
 351                         __le32 Post_Address;
 352                 } * post;
 353                 dma_addr_t paddr, baddr;
 354                 int ret;
 355
 356                 if (likely((status & 0xFF000000L) == 0xBC000000L))
 357                         return (status >> 16) & 0xFF;
 358                 buffer = dma_alloc_coherent(&dev->pdev->dev, 512, &baddr,
 359                                             GFP_KERNEL);
 360                 ret = -2;
 361                 if (unlikely(buffer == NULL))
 362                         return ret;
 363                 post = dma_alloc_coherent(&dev->pdev->dev,
 364                                           sizeof(struct POSTSTATUS), &paddr,
 365                                           GFP_KERNEL);
 366                 if (unlikely(post == NULL)) {
 367                         dma_free_coherent(&dev->pdev->dev, 512, buffer, baddr);
 368                         return ret;
 369                 }
 370                 memset(buffer, 0, 512);
 371                 post->Post_Command = cpu_to_le32(COMMAND_POST_RESULTS);
 372                 post->Post_Address = cpu_to_le32(baddr);
 373                 rx_writel(dev, MUnit.IMRx[0], paddr);
 374                 rx_sync_cmd(dev, COMMAND_POST_RESULTS, baddr, 0, 0, 0, 0, 0,
 375                   NULL, NULL, NULL, NULL, NULL);
 376                 dma_free_coherent(&dev->pdev->dev, sizeof(struct POSTSTATUS),
 377                                   post, paddr);
 378                 if (likely((buffer[0] == '0') && ((buffer[1] == 'x') || (buffer[1] == 'X')))) {
 379                         ret = (hex_to_bin(buffer[2]) << 4) +
 380                                 hex_to_bin(buffer[3]);
 381                 }
 382                 dma_free_coherent(&dev->pdev->dev, 512, buffer, baddr);
 383                 return ret;
 384         }
 385         /*
 386          *      Wait for the adapter to be up and running.
 387          */
 388         if (unlikely(!(status & KERNEL_UP_AND_RUNNING)))
 389                 return -3;
 390         /*
 391          *      Everything is OK
 392          */
 393         return 0;
 394 }
 395
 396 /**
 397  *      aac_rx_deliver_producer
 398  *      @fib: fib to issue
 399  *
 400  *      Will send a fib, returning 0 if successful.
 401  */
 402 int aac_rx_deliver_producer(struct fib * fib)
 403 {
 404         struct aac_dev *dev = fib->dev;
 405         struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue];
 406         u32 Index;
 407         unsigned long nointr = 0;
 408
 409         aac_queue_get( dev, &Index, AdapNormCmdQueue, fib->hw_fib_va, 1, fib, &nointr);
 410
 411         atomic_inc(&q->numpending);
 412         *(q->headers.producer) = cpu_to_le32(Index + 1);
 413         if (!(nointr & aac_config.irq_mod))
 414                 aac_adapter_notify(dev, AdapNormCmdQueue);
 415
 416         return 0;
 417 }
 418
 419 /**
 420  *      aac_rx_deliver_message
 421  *      @fib: fib to issue
 422  *
 423  *      Will send a fib, returning 0 if successful.
 424  */
 425 static int aac_rx_deliver_message(struct fib * fib)
 426 {
 427         struct aac_dev *dev = fib->dev;
 428         struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue];
 429         u32 Index;
 430         u64 addr;
 431         volatile void __iomem *device;
 432
 433         unsigned long count = 10000000L; /* 50 seconds */
 434         atomic_inc(&q->numpending);
 435         for(;;) {
 436                 Index = rx_readl(dev, MUnit.InboundQueue);
 437                 if (unlikely(Index == 0xFFFFFFFFL))
 438                         Index = rx_readl(dev, MUnit.InboundQueue);
 439                 if (likely(Index != 0xFFFFFFFFL))
 440                         break;
 441                 if (--count == 0) {
 442                         atomic_dec(&q->numpending);
 443                         return -ETIMEDOUT;
 444                 }
 445                 udelay(5);
 446         }
 447         device = dev->base + Index;
 448         addr = fib->hw_fib_pa;
 449         writel((u32)(addr & 0xffffffff), device);
 450         device += sizeof(u32);
 451         writel((u32)(addr >> 32), device);
 452         device += sizeof(u32);
 453         writel(le16_to_cpu(fib->hw_fib_va->header.Size), device);
 454         rx_writel(dev, MUnit.InboundQueue, Index);
 455         return 0;
 456 }
 457
 458 /**
 459  *      aac_rx_ioremap
 460  *      @size: mapping resize request
 461  *
 462  */
 463 static int aac_rx_ioremap(struct aac_dev * dev, u32 size)
 464 {
 465         if (!size) {
 466                 iounmap(dev->regs.rx);
 467                 return 0;
 468         }
 469         dev->base = dev->regs.rx = ioremap(dev->base_start, size);
 470         if (dev->base == NULL)
 471                 return -1;
 472         dev->IndexRegs = &dev->regs.rx->IndexRegs;
 473         return 0;
 474 }
 475
 476 static int aac_rx_restart_adapter(struct aac_dev *dev, int bled, u8 reset_type)
 477 {
 478         u32 var = 0;
 479
 480         if (!(dev->supplement_adapter_info.supported_options2 &
 481           AAC_OPTION_MU_RESET) || (bled >= 0) || (bled == -2)) {
 482                 if (bled)
 483                         printk(KERN_ERR "%s%d: adapter kernel panic'd %x.\n",
 484                                 dev->name, dev->id, bled);
 485                 else {
 486                         bled = aac_adapter_sync_cmd(dev, IOP_RESET_ALWAYS,
 487                           0, 0, 0, 0, 0, 0, &var, NULL, NULL, NULL, NULL);
 488                         if (!bled && (var != 0x00000001) && (var != 0x3803000F))
 489                                 bled = -EINVAL;
 490                 }
 491                 if (bled && (bled != -ETIMEDOUT))
 492                         bled = aac_adapter_sync_cmd(dev, IOP_RESET,
 493                           0, 0, 0, 0, 0, 0, &var, NULL, NULL, NULL, NULL);
 494
 495                 if (bled && (bled != -ETIMEDOUT))
 496                         return -EINVAL;
 497         }
 498         if (bled && (var == 0x3803000F)) { /* USE_OTHER_METHOD */
 499                 rx_writel(dev, MUnit.reserved2, 3);
 500                 msleep(5000); /* Delay 5 seconds */
 501                 var = 0x00000001;
 502         }
 503         if (bled && (var != 0x00000001))
 504                 return -EINVAL;
 505         ssleep(5);
 506         if (rx_readl(dev, MUnit.OMRx[0]) & KERNEL_PANIC)
 507                 return -ENODEV;
 508         if (startup_timeout < 300)
 509                 startup_timeout = 300;
 510         return 0;
 511 }
 512
 513 /**
 514  *      aac_rx_select_comm      -       Select communications method
 515  *      @dev: Adapter
 516  *      @comm: communications method
 517  */
 518
 519 int aac_rx_select_comm(struct aac_dev *dev, int comm)
 520 {
 521         switch (comm) {
 522         case AAC_COMM_PRODUCER:
 523                 dev->a_ops.adapter_enable_int = aac_rx_enable_interrupt_producer;
 524                 dev->a_ops.adapter_intr = aac_rx_intr_producer;
 525                 dev->a_ops.adapter_deliver = aac_rx_deliver_producer;
 526                 break;
 527         case AAC_COMM_MESSAGE:
 528                 dev->a_ops.adapter_enable_int = aac_rx_enable_interrupt_message;
 529                 dev->a_ops.adapter_intr = aac_rx_intr_message;
 530                 dev->a_ops.adapter_deliver = aac_rx_deliver_message;
 531                 break;
 532         default:
 533                 return 1;
 534         }
 535         return 0;
 536 }
 537
 538 /**
 539  *      aac_rx_init     -       initialize an i960 based AAC card
 540  *      @dev: device to configure
 541  *
 542  *      Allocate and set up resources for the i960 based AAC variants. The
 543  *      device_interface in the commregion will be allocated and linked
 544  *      to the comm region.
 545  */
 546
 547 int _aac_rx_init(struct aac_dev *dev)
 548 {
 549         unsigned long start;
 550         unsigned long status;
 551         int restart = 0;
 552         int instance = dev->id;
 553         const char * name = dev->name;
 554
 555         if (aac_adapter_ioremap(dev, dev->base_size)) {
 556                 printk(KERN_WARNING "%s: unable to map adapter.\n", name);
 557                 goto error_iounmap;
 558         }
 559
 560         /* Failure to reset here is an option ... */
 561         dev->a_ops.adapter_sync_cmd = rx_sync_cmd;
 562         dev->a_ops.adapter_enable_int = aac_rx_disable_interrupt;
 563         dev->OIMR = status = rx_readb (dev, MUnit.OIMR);
 564         if ((((status & 0x0c) != 0x0c) || aac_reset_devices || reset_devices) &&
 565           !aac_rx_restart_adapter(dev, 0, IOP_HWSOFT_RESET))
 566                 /* Make sure the Hardware FIFO is empty */
 567                 while ((++restart < 512) &&
 568                   (rx_readl(dev, MUnit.OutboundQueue) != 0xFFFFFFFFL));
 569         /*
 570          *      Check to see if the board panic'd while booting.
 571          */
 572         status = rx_readl(dev, MUnit.OMRx[0]);
 573         if (status & KERNEL_PANIC) {
 574                 if (aac_rx_restart_adapter(dev,
 575                         aac_rx_check_health(dev), IOP_HWSOFT_RESET))
 576                         goto error_iounmap;
 577                 ++restart;
 578         }
 579         /*
 580          *      Check to see if the board failed any self tests.
 581          */
 582         status = rx_readl(dev, MUnit.OMRx[0]);
 583         if (status & SELF_TEST_FAILED) {
 584                 printk(KERN_ERR "%s%d: adapter self-test failed.\n", dev->name, instance);
 585                 goto error_iounmap;
 586         }
 587         /*
 588          *      Check to see if the monitor panic'd while booting.
 589          */
 590         if (status & MONITOR_PANIC) {
 591                 printk(KERN_ERR "%s%d: adapter monitor panic.\n", dev->name, instance);
 592                 goto error_iounmap;
 593         }
 594         start = jiffies;
 595         /*
 596          *      Wait for the adapter to be up and running. Wait up to 3 minutes
 597          */
 598         while (!((status = rx_readl(dev, MUnit.OMRx[0])) & KERNEL_UP_AND_RUNNING))
 599         {
 600                 if ((restart &&
 601                   (status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC))) ||
 602                   time_after(jiffies, start+HZ*startup_timeout)) {
 603                         printk(KERN_ERR "%s%d: adapter kernel failed to start, init status = %lx.\n",
 604                                         dev->name, instance, status);
 605                         goto error_iounmap;
 606                 }
 607                 if (!restart &&
 608                   ((status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC)) ||
 609                   time_after(jiffies, start + HZ *
 610                   ((startup_timeout > 60)
 611                     ? (startup_timeout - 60)
 612                     : (startup_timeout / 2))))) {
 613                         if (likely(!aac_rx_restart_adapter(dev,
 614                                 aac_rx_check_health(dev), IOP_HWSOFT_RESET)))
 615                                 start = jiffies;
 616                         ++restart;
 617                 }
 618                 msleep(1);
 619         }
 620         if (restart && aac_commit)
 621                 aac_commit = 1;
 622         /*
 623          *      Fill in the common function dispatch table.
 624          */
 625         dev->a_ops.adapter_interrupt = aac_rx_interrupt_adapter;
 626         dev->a_ops.adapter_disable_int = aac_rx_disable_interrupt;
 627         dev->a_ops.adapter_notify = aac_rx_notify_adapter;
 628         dev->a_ops.adapter_sync_cmd = rx_sync_cmd;
 629         dev->a_ops.adapter_check_health = aac_rx_check_health;
 630         dev->a_ops.adapter_restart = aac_rx_restart_adapter;
 631         dev->a_ops.adapter_start = aac_rx_start_adapter;
 632
 633         /*
 634          *      First clear out all interrupts.  Then enable the one's that we
 635          *      can handle.
 636          */
 637         aac_adapter_comm(dev, AAC_COMM_PRODUCER);
 638         aac_adapter_disable_int(dev);
 639         rx_writel(dev, MUnit.ODR, 0xffffffff);
 640         aac_adapter_enable_int(dev);
 641
 642         if (aac_init_adapter(dev) == NULL)
 643                 goto error_iounmap;
 644         aac_adapter_comm(dev, dev->comm_interface);
 645         dev->sync_mode = 0;     /* sync. mode not supported */
 646         dev->msi = aac_msi && !pci_enable_msi(dev->pdev);
 647         if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr,
 648                         IRQF_SHARED, "aacraid", dev) < 0) {
 649                 if (dev->msi)
 650                         pci_disable_msi(dev->pdev);
 651                 printk(KERN_ERR "%s%d: Interrupt unavailable.\n",
 652                         name, instance);
 653                 goto error_iounmap;
 654         }
 655         dev->dbg_base = dev->base_start;
 656         dev->dbg_base_mapped = dev->base;
 657         dev->dbg_size = dev->base_size;
 658
 659         aac_adapter_enable_int(dev);
 660         /*
 661          *      Tell the adapter that all is configured, and it can
 662          * start accepting requests
 663          */
 664         aac_rx_start_adapter(dev);
 665
 666         return 0;
 667
 668 error_iounmap:
 669
 670         return -1;
 671 }
 672
 673 int aac_rx_init(struct aac_dev *dev)
 674 {
 675         /*
 676          *      Fill in the function dispatch table.
 677          */
 678         dev->a_ops.adapter_ioremap = aac_rx_ioremap;
 679         dev->a_ops.adapter_comm = aac_rx_select_comm;
 680
 681         return _aac_rx_init(dev);
 682 }