drivers/scsi/aacraid/aachba.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 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  */
  25
  26 #include <linux/kernel.h>
  27 #include <linux/init.h>
  28 #include <linux/types.h>
  29 #include <linux/sched.h>
  30 #include <linux/pci.h>
  31 #include <linux/spinlock.h>
  32 #include <linux/slab.h>
  33 #include <linux/completion.h>
  34 #include <linux/blkdev.h>
  35 #include <asm/semaphore.h>
  36 #include <asm/uaccess.h>
  37
  38 #include <scsi/scsi.h>
  39 #include <scsi/scsi_cmnd.h>
  40 #include <scsi/scsi_device.h>
  41 #include <scsi/scsi_host.h>
  42
  43 #include "aacraid.h"
  44
  45 /* values for inqd_pdt: Peripheral device type in plain English */
  46 #define INQD_PDT_DA     0x00    /* Direct-access (DISK) device */
  47 #define INQD_PDT_PROC   0x03    /* Processor device */
  48 #define INQD_PDT_CHNGR  0x08    /* Changer (jukebox, scsi2) */
  49 #define INQD_PDT_COMM   0x09    /* Communication device (scsi2) */
  50 #define INQD_PDT_NOLUN2 0x1f    /* Unknown Device (scsi2) */
  51 #define INQD_PDT_NOLUN  0x7f    /* Logical Unit Not Present */
  52
  53 #define INQD_PDT_DMASK  0x1F    /* Peripheral Device Type Mask */
  54 #define INQD_PDT_QMASK  0xE0    /* Peripheral Device Qualifer Mask */
  55
  56 /*
  57  *      Sense codes
  58  */
  59
  60 #define SENCODE_NO_SENSE                        0x00
  61 #define SENCODE_END_OF_DATA                     0x00
  62 #define SENCODE_BECOMING_READY                  0x04
  63 #define SENCODE_INIT_CMD_REQUIRED               0x04
  64 #define SENCODE_PARAM_LIST_LENGTH_ERROR         0x1A
  65 #define SENCODE_INVALID_COMMAND                 0x20
  66 #define SENCODE_LBA_OUT_OF_RANGE                0x21
  67 #define SENCODE_INVALID_CDB_FIELD               0x24
  68 #define SENCODE_LUN_NOT_SUPPORTED               0x25
  69 #define SENCODE_INVALID_PARAM_FIELD             0x26
  70 #define SENCODE_PARAM_NOT_SUPPORTED             0x26
  71 #define SENCODE_PARAM_VALUE_INVALID             0x26
  72 #define SENCODE_RESET_OCCURRED                  0x29
  73 #define SENCODE_LUN_NOT_SELF_CONFIGURED_YET     0x3E
  74 #define SENCODE_INQUIRY_DATA_CHANGED            0x3F
  75 #define SENCODE_SAVING_PARAMS_NOT_SUPPORTED     0x39
  76 #define SENCODE_DIAGNOSTIC_FAILURE              0x40
  77 #define SENCODE_INTERNAL_TARGET_FAILURE         0x44
  78 #define SENCODE_INVALID_MESSAGE_ERROR           0x49
  79 #define SENCODE_LUN_FAILED_SELF_CONFIG          0x4c
  80 #define SENCODE_OVERLAPPED_COMMAND              0x4E
  81
  82 /*
  83  *      Additional sense codes
  84  */
  85
  86 #define ASENCODE_NO_SENSE                       0x00
  87 #define ASENCODE_END_OF_DATA                    0x05
  88 #define ASENCODE_BECOMING_READY                 0x01
  89 #define ASENCODE_INIT_CMD_REQUIRED              0x02
  90 #define ASENCODE_PARAM_LIST_LENGTH_ERROR        0x00
  91 #define ASENCODE_INVALID_COMMAND                0x00
  92 #define ASENCODE_LBA_OUT_OF_RANGE               0x00
  93 #define ASENCODE_INVALID_CDB_FIELD              0x00
  94 #define ASENCODE_LUN_NOT_SUPPORTED              0x00
  95 #define ASENCODE_INVALID_PARAM_FIELD            0x00
  96 #define ASENCODE_PARAM_NOT_SUPPORTED            0x01
  97 #define ASENCODE_PARAM_VALUE_INVALID            0x02
  98 #define ASENCODE_RESET_OCCURRED                 0x00
  99 #define ASENCODE_LUN_NOT_SELF_CONFIGURED_YET    0x00
 100 #define ASENCODE_INQUIRY_DATA_CHANGED           0x03
 101 #define ASENCODE_SAVING_PARAMS_NOT_SUPPORTED    0x00
 102 #define ASENCODE_DIAGNOSTIC_FAILURE             0x80
 103 #define ASENCODE_INTERNAL_TARGET_FAILURE        0x00
 104 #define ASENCODE_INVALID_MESSAGE_ERROR          0x00
 105 #define ASENCODE_LUN_FAILED_SELF_CONFIG         0x00
 106 #define ASENCODE_OVERLAPPED_COMMAND             0x00
 107
 108 #define BYTE0(x) (unsigned char)(x)
 109 #define BYTE1(x) (unsigned char)((x) >> 8)
 110 #define BYTE2(x) (unsigned char)((x) >> 16)
 111 #define BYTE3(x) (unsigned char)((x) >> 24)
 112
 113 /*------------------------------------------------------------------------------
 114  *              S T R U C T S / T Y P E D E F S
 115  *----------------------------------------------------------------------------*/
 116 /* SCSI inquiry data */
 117 struct inquiry_data {
 118         u8 inqd_pdt;    /* Peripheral qualifier | Peripheral Device Type  */
 119         u8 inqd_dtq;    /* RMB | Device Type Qualifier  */
 120         u8 inqd_ver;    /* ISO version | ECMA version | ANSI-approved version */
 121         u8 inqd_rdf;    /* AENC | TrmIOP | Response data format */
 122         u8 inqd_len;    /* Additional length (n-4) */
 123         u8 inqd_pad1[2];/* Reserved - must be zero */
 124         u8 inqd_pad2;   /* RelAdr | WBus32 | WBus16 |  Sync  | Linked |Reserved| CmdQue | SftRe */
 125         u8 inqd_vid[8]; /* Vendor ID */
 126         u8 inqd_pid[16];/* Product ID */
 127         u8 inqd_prl[4]; /* Product Revision Level */
 128 };
 129
 130 /*
 131  *              M O D U L E   G L O B A L S
 132  */
 133
 134 static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* sgmap);
 135 static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* psg);
 136 static unsigned long aac_build_sgraw(struct scsi_cmnd* scsicmd, struct sgmapraw* psg);
 137 static int aac_send_srb_fib(struct scsi_cmnd* scsicmd);
 138 #ifdef AAC_DETAILED_STATUS_INFO
 139 static char *aac_get_status_string(u32 status);
 140 #endif
 141
 142 /*
 143  *      Non dasd selection is handled entirely in aachba now
 144  */
 145
 146 static int nondasd = -1;
 147 static int dacmode = -1;
 148
 149 static int commit = -1;
 150
 151 module_param(nondasd, int, 0);
 152 MODULE_PARM_DESC(nondasd, "Control scanning of hba for nondasd devices. 0=off, 1=on");
 153 module_param(dacmode, int, 0);
 154 MODULE_PARM_DESC(dacmode, "Control whether dma addressing is using 64 bit DAC. 0=off, 1=on");
 155 module_param(commit, int, 0);
 156 MODULE_PARM_DESC(commit, "Control whether a COMMIT_CONFIG is issued to the adapter for foreign arrays.\nThis is typically needed in systems that do not have a BIOS. 0=off, 1=on");
 157
 158 int numacb = -1;
 159 module_param(numacb, int, S_IRUGO|S_IWUSR);
 160 MODULE_PARM_DESC(numacb, "Request a limit to the number of adapter control blocks (FIB) allocated. Valid\nvalues are 512 and down. Default is to use suggestion from Firmware.");
 161
 162 int acbsize = -1;
 163 module_param(acbsize, int, S_IRUGO|S_IWUSR);
 164 MODULE_PARM_DESC(acbsize, "Request a specific adapter control block (FIB) size. Valid values are 512,\n2048, 4096 and 8192. Default is to use suggestion from Firmware.");
 165 /**
 166  *      aac_get_config_status   -       check the adapter configuration
 167  *      @common: adapter to query
 168  *
 169  *      Query config status, and commit the configuration if needed.
 170  */
 171 int aac_get_config_status(struct aac_dev *dev)
 172 {
 173         int status = 0;
 174         struct fib * fibptr;
 175
 176         if (!(fibptr = fib_alloc(dev)))
 177                 return -ENOMEM;
 178
 179         fib_init(fibptr);
 180         {
 181                 struct aac_get_config_status *dinfo;
 182                 dinfo = (struct aac_get_config_status *) fib_data(fibptr);
 183
 184                 dinfo->command = cpu_to_le32(VM_ContainerConfig);
 185                 dinfo->type = cpu_to_le32(CT_GET_CONFIG_STATUS);
 186                 dinfo->count = cpu_to_le32(sizeof(((struct aac_get_config_status_resp *)NULL)->data));
 187         }
 188
 189         status = fib_send(ContainerCommand,
 190                             fibptr,
 191                             sizeof (struct aac_get_config_status),
 192                             FsaNormal,
 193                             1, 1,
 194                             NULL, NULL);
 195         if (status < 0 ) {
 196                 printk(KERN_WARNING "aac_get_config_status: SendFIB failed.\n");
 197         } else {
 198                 struct aac_get_config_status_resp *reply
 199                   = (struct aac_get_config_status_resp *) fib_data(fibptr);
 200                 dprintk((KERN_WARNING
 201                   "aac_get_config_status: response=%d status=%d action=%d\n",
 202                   le32_to_cpu(reply->response),
 203                   le32_to_cpu(reply->status),
 204                   le32_to_cpu(reply->data.action)));
 205                 if ((le32_to_cpu(reply->response) != ST_OK) ||
 206                      (le32_to_cpu(reply->status) != CT_OK) ||
 207                      (le32_to_cpu(reply->data.action) > CFACT_PAUSE)) {
 208                         printk(KERN_WARNING "aac_get_config_status: Will not issue the Commit Configuration\n");
 209                         status = -EINVAL;
 210                 }
 211         }
 212         fib_complete(fibptr);
 213         /* Send a CT_COMMIT_CONFIG to enable discovery of devices */
 214         if (status >= 0) {
 215                 if (commit == 1) {
 216                         struct aac_commit_config * dinfo;
 217                         fib_init(fibptr);
 218                         dinfo = (struct aac_commit_config *) fib_data(fibptr);
 219
 220                         dinfo->command = cpu_to_le32(VM_ContainerConfig);
 221                         dinfo->type = cpu_to_le32(CT_COMMIT_CONFIG);
 222
 223                         status = fib_send(ContainerCommand,
 224                                     fibptr,
 225                                     sizeof (struct aac_commit_config),
 226                                     FsaNormal,
 227                                     1, 1,
 228                                     NULL, NULL);
 229                         fib_complete(fibptr);
 230                 } else if (commit == 0) {
 231                         printk(KERN_WARNING
 232                           "aac_get_config_status: Foreign device configurations are being ignored\n");
 233                 }
 234         }
 235         fib_free(fibptr);
 236         return status;
 237 }
 238
 239 /**
 240  *      aac_get_containers      -       list containers
 241  *      @common: adapter to probe
 242  *
 243  *      Make a list of all containers on this controller
 244  */
 245 int aac_get_containers(struct aac_dev *dev)
 246 {
 247         struct fsa_dev_info *fsa_dev_ptr;
 248         u32 index;
 249         int status = 0;
 250         struct fib * fibptr;
 251         unsigned instance;
 252         struct aac_get_container_count *dinfo;
 253         struct aac_get_container_count_resp *dresp;
 254         int maximum_num_containers = MAXIMUM_NUM_CONTAINERS;
 255
 256         instance = dev->scsi_host_ptr->unique_id;
 257
 258         if (!(fibptr = fib_alloc(dev)))
 259                 return -ENOMEM;
 260
 261         fib_init(fibptr);
 262         dinfo = (struct aac_get_container_count *) fib_data(fibptr);
 263         dinfo->command = cpu_to_le32(VM_ContainerConfig);
 264         dinfo->type = cpu_to_le32(CT_GET_CONTAINER_COUNT);
 265
 266         status = fib_send(ContainerCommand,
 267                     fibptr,
 268                     sizeof (struct aac_get_container_count),
 269                     FsaNormal,
 270                     1, 1,
 271                     NULL, NULL);
 272         if (status >= 0) {
 273                 dresp = (struct aac_get_container_count_resp *)fib_data(fibptr);
 274                 maximum_num_containers = le32_to_cpu(dresp->ContainerSwitchEntries);
 275                 fib_complete(fibptr);
 276         }
 277
 278         if (maximum_num_containers < MAXIMUM_NUM_CONTAINERS)
 279                 maximum_num_containers = MAXIMUM_NUM_CONTAINERS;
 280         fsa_dev_ptr = (struct fsa_dev_info *) kmalloc(
 281           sizeof(*fsa_dev_ptr) * maximum_num_containers, GFP_KERNEL);
 282         if (!fsa_dev_ptr) {
 283                 fib_free(fibptr);
 284                 return -ENOMEM;
 285         }
 286         memset(fsa_dev_ptr, 0, sizeof(*fsa_dev_ptr) * maximum_num_containers);
 287
 288         dev->fsa_dev = fsa_dev_ptr;
 289         dev->maximum_num_containers = maximum_num_containers;
 290
 291         for (index = 0; index < dev->maximum_num_containers; index++) {
 292                 struct aac_query_mount *dinfo;
 293                 struct aac_mount *dresp;
 294
 295                 fsa_dev_ptr[index].devname[0] = '\0';
 296
 297                 fib_init(fibptr);
 298                 dinfo = (struct aac_query_mount *) fib_data(fibptr);
 299
 300                 dinfo->command = cpu_to_le32(VM_NameServe);
 301                 dinfo->count = cpu_to_le32(index);
 302                 dinfo->type = cpu_to_le32(FT_FILESYS);
 303
 304                 status = fib_send(ContainerCommand,
 305                                     fibptr,
 306                                     sizeof (struct aac_query_mount),
 307                                     FsaNormal,
 308                                     1, 1,
 309                                     NULL, NULL);
 310                 if (status < 0 ) {
 311                         printk(KERN_WARNING "aac_get_containers: SendFIB failed.\n");
 312                         break;
 313                 }
 314                 dresp = (struct aac_mount *)fib_data(fibptr);
 315
 316                 dprintk ((KERN_DEBUG
 317                   "VM_NameServe cid=%d status=%d vol=%d state=%d cap=%u\n",
 318                   (int)index, (int)le32_to_cpu(dresp->status),
 319                   (int)le32_to_cpu(dresp->mnt[0].vol),
 320                   (int)le32_to_cpu(dresp->mnt[0].state),
 321                   (unsigned)le32_to_cpu(dresp->mnt[0].capacity)));
 322                 if ((le32_to_cpu(dresp->status) == ST_OK) &&
 323                     (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE) &&
 324                     (le32_to_cpu(dresp->mnt[0].state) != FSCS_HIDDEN)) {
 325                         fsa_dev_ptr[index].valid = 1;
 326                         fsa_dev_ptr[index].type = le32_to_cpu(dresp->mnt[0].vol);
 327                         fsa_dev_ptr[index].size = le32_to_cpu(dresp->mnt[0].capacity);
 328                         if (le32_to_cpu(dresp->mnt[0].state) & FSCS_READONLY)
 329                                     fsa_dev_ptr[index].ro = 1;
 330                 }
 331                 fib_complete(fibptr);
 332                 /*
 333                  *      If there are no more containers, then stop asking.
 334                  */
 335                 if ((index + 1) >= le32_to_cpu(dresp->count)){
 336                         break;
 337                 }
 338         }
 339         fib_free(fibptr);
 340         return status;
 341 }
 342
 343 static void aac_io_done(struct scsi_cmnd * scsicmd)
 344 {
 345         unsigned long cpu_flags;
 346         struct Scsi_Host *host = scsicmd->device->host;
 347         spin_lock_irqsave(host->host_lock, cpu_flags);
 348         scsicmd->scsi_done(scsicmd);
 349         spin_unlock_irqrestore(host->host_lock, cpu_flags);
 350 }
 351
 352 static void aac_internal_transfer(struct scsi_cmnd *scsicmd, void *data, unsigned int offset, unsigned int len)
 353 {
 354         void *buf;
 355         unsigned int transfer_len;
 356         struct scatterlist *sg = scsicmd->request_buffer;
 357
 358         if (scsicmd->use_sg) {
 359                 buf = kmap_atomic(sg->page, KM_IRQ0) + sg->offset;
 360                 transfer_len = min(sg->length, len + offset);
 361         } else {
 362                 buf = scsicmd->request_buffer;
 363                 transfer_len = min(scsicmd->request_bufflen, len + offset);
 364         }
 365
 366         memcpy(buf + offset, data, transfer_len - offset);
 367
 368         if (scsicmd->use_sg)
 369                 kunmap_atomic(buf - sg->offset, KM_IRQ0);
 370
 371 }
 372
 373 static void get_container_name_callback(void *context, struct fib * fibptr)
 374 {
 375         struct aac_get_name_resp * get_name_reply;
 376         struct scsi_cmnd * scsicmd;
 377
 378         scsicmd = (struct scsi_cmnd *) context;
 379
 380         dprintk((KERN_DEBUG "get_container_name_callback[cpu %d]: t = %ld.\n", smp_processor_id(), jiffies));
 381         if (fibptr == NULL)
 382                 BUG();
 383
 384         get_name_reply = (struct aac_get_name_resp *) fib_data(fibptr);
 385         /* Failure is irrelevant, using default value instead */
 386         if ((le32_to_cpu(get_name_reply->status) == CT_OK)
 387          && (get_name_reply->data[0] != '\0')) {
 388                 char *sp = get_name_reply->data;
 389                 sp[sizeof(((struct aac_get_name_resp *)NULL)->data)-1] = '\0';
 390                 while (*sp == ' ')
 391                         ++sp;
 392                 if (*sp) {
 393                         char d[sizeof(((struct inquiry_data *)NULL)->inqd_pid)];
 394                         int count = sizeof(d);
 395                         char *dp = d;
 396                         do {
 397                                 *dp++ = (*sp) ? *sp++ : ' ';
 398                         } while (--count > 0);
 399                         aac_internal_transfer(scsicmd, d,
 400                           offsetof(struct inquiry_data, inqd_pid), sizeof(d));
 401                 }
 402         }
 403
 404         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
 405
 406         fib_complete(fibptr);
 407         fib_free(fibptr);
 408         aac_io_done(scsicmd);
 409 }
 410
 411 /**
 412  *      aac_get_container_name  -       get container name, none blocking.
 413  */
 414 static int aac_get_container_name(struct scsi_cmnd * scsicmd, int cid)
 415 {
 416         int status;
 417         struct aac_get_name *dinfo;
 418         struct fib * cmd_fibcontext;
 419         struct aac_dev * dev;
 420
 421         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
 422
 423         if (!(cmd_fibcontext = fib_alloc(dev)))
 424                 return -ENOMEM;
 425
 426         fib_init(cmd_fibcontext);
 427         dinfo = (struct aac_get_name *) fib_data(cmd_fibcontext);
 428
 429         dinfo->command = cpu_to_le32(VM_ContainerConfig);
 430         dinfo->type = cpu_to_le32(CT_READ_NAME);
 431         dinfo->cid = cpu_to_le32(cid);
 432         dinfo->count = cpu_to_le32(sizeof(((struct aac_get_name_resp *)NULL)->data));
 433
 434         status = fib_send(ContainerCommand,
 435                   cmd_fibcontext,
 436                   sizeof (struct aac_get_name),
 437                   FsaNormal,
 438                   0, 1,
 439                   (fib_callback) get_container_name_callback,
 440                   (void *) scsicmd);
 441
 442         /*
 443          *      Check that the command queued to the controller
 444          */
 445         if (status == -EINPROGRESS)
 446                 return 0;
 447
 448         printk(KERN_WARNING "aac_get_container_name: fib_send failed with status: %d.\n", status);
 449         fib_complete(cmd_fibcontext);
 450         fib_free(cmd_fibcontext);
 451         return -1;
 452 }
 453
 454 /**
 455  *      probe_container         -       query a logical volume
 456  *      @dev: device to query
 457  *      @cid: container identifier
 458  *
 459  *      Queries the controller about the given volume. The volume information
 460  *      is updated in the struct fsa_dev_info structure rather than returned.
 461  */
 462
 463 static int probe_container(struct aac_dev *dev, int cid)
 464 {
 465         struct fsa_dev_info *fsa_dev_ptr;
 466         int status;
 467         struct aac_query_mount *dinfo;
 468         struct aac_mount *dresp;
 469         struct fib * fibptr;
 470         unsigned instance;
 471
 472         fsa_dev_ptr = dev->fsa_dev;
 473         instance = dev->scsi_host_ptr->unique_id;
 474
 475         if (!(fibptr = fib_alloc(dev)))
 476                 return -ENOMEM;
 477
 478         fib_init(fibptr);
 479
 480         dinfo = (struct aac_query_mount *)fib_data(fibptr);
 481
 482         dinfo->command = cpu_to_le32(VM_NameServe);
 483         dinfo->count = cpu_to_le32(cid);
 484         dinfo->type = cpu_to_le32(FT_FILESYS);
 485
 486         status = fib_send(ContainerCommand,
 487                             fibptr,
 488                             sizeof(struct aac_query_mount),
 489                             FsaNormal,
 490                             1, 1,
 491                             NULL, NULL);
 492         if (status < 0) {
 493                 printk(KERN_WARNING "aacraid: probe_container query failed.\n");
 494                 goto error;
 495         }
 496
 497         dresp = (struct aac_mount *) fib_data(fibptr);
 498
 499         if ((le32_to_cpu(dresp->status) == ST_OK) &&
 500             (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE) &&
 501             (le32_to_cpu(dresp->mnt[0].state) != FSCS_HIDDEN)) {
 502                 fsa_dev_ptr[cid].valid = 1;
 503                 fsa_dev_ptr[cid].type = le32_to_cpu(dresp->mnt[0].vol);
 504                 fsa_dev_ptr[cid].size = le32_to_cpu(dresp->mnt[0].capacity);
 505                 if (le32_to_cpu(dresp->mnt[0].state) & FSCS_READONLY)
 506                         fsa_dev_ptr[cid].ro = 1;
 507         }
 508
 509 error:
 510         fib_complete(fibptr);
 511         fib_free(fibptr);
 512
 513         return status;
 514 }
 515
 516 /* Local Structure to set SCSI inquiry data strings */
 517 struct scsi_inq {
 518         char vid[8];         /* Vendor ID */
 519         char pid[16];        /* Product ID */
 520         char prl[4];         /* Product Revision Level */
 521 };
 522
 523 /**
 524  *      InqStrCopy      -       string merge
 525  *      @a:     string to copy from
 526  *      @b:     string to copy to
 527  *
 528  *      Copy a String from one location to another
 529  *      without copying \0
 530  */
 531
 532 static void inqstrcpy(char *a, char *b)
 533 {
 534
 535         while(*a != (char)0)
 536                 *b++ = *a++;
 537 }
 538
 539 static char *container_types[] = {
 540         "None",
 541         "Volume",
 542         "Mirror",
 543         "Stripe",
 544         "RAID5",
 545         "SSRW",
 546         "SSRO",
 547         "Morph",
 548         "Legacy",
 549         "RAID4",
 550         "RAID10",
 551         "RAID00",
 552         "V-MIRRORS",
 553         "PSEUDO R4",
 554         "RAID50",
 555         "RAID5D",
 556         "RAID5D0",
 557         "RAID1E",
 558         "RAID6",
 559         "RAID60",
 560         "Unknown"
 561 };
 562
 563
 564
 565 /* Function: setinqstr
 566  *
 567  * Arguments: [1] pointer to void [1] int
 568  *
 569  * Purpose: Sets SCSI inquiry data strings for vendor, product
 570  * and revision level. Allows strings to be set in platform dependant
 571  * files instead of in OS dependant driver source.
 572  */
 573
 574 static void setinqstr(int devtype, void *data, int tindex)
 575 {
 576         struct scsi_inq *str;
 577         struct aac_driver_ident *mp;
 578
 579         mp = aac_get_driver_ident(devtype);
 580
 581         str = (struct scsi_inq *)(data); /* cast data to scsi inq block */
 582
 583         inqstrcpy (mp->vname, str->vid);
 584         inqstrcpy (mp->model, str->pid); /* last six chars reserved for vol type */
 585
 586         if (tindex < (sizeof(container_types)/sizeof(char *))){
 587                 char *findit = str->pid;
 588
 589                 for ( ; *findit != ' '; findit++); /* walk till we find a space */
 590                 /* RAID is superfluous in the context of a RAID device */
 591                 if (memcmp(findit-4, "RAID", 4) == 0)
 592                         *(findit -= 4) = ' ';
 593                 inqstrcpy (container_types[tindex], findit + 1);
 594         }
 595         inqstrcpy ("V1.0", str->prl);
 596 }
 597
 598 static void set_sense(u8 *sense_buf, u8 sense_key, u8 sense_code,
 599                       u8 a_sense_code, u8 incorrect_length,
 600                       u8 bit_pointer, u16 field_pointer,
 601                       u32 residue)
 602 {
 603         sense_buf[0] = 0xF0;    /* Sense data valid, err code 70h (current error) */
 604         sense_buf[1] = 0;       /* Segment number, always zero */
 605
 606         if (incorrect_length) {
 607                 sense_buf[2] = sense_key | 0x20;/* Set ILI bit | sense key */
 608                 sense_buf[3] = BYTE3(residue);
 609                 sense_buf[4] = BYTE2(residue);
 610                 sense_buf[5] = BYTE1(residue);
 611                 sense_buf[6] = BYTE0(residue);
 612         } else
 613                 sense_buf[2] = sense_key;       /* Sense key */
 614
 615         if (sense_key == ILLEGAL_REQUEST)
 616                 sense_buf[7] = 10;      /* Additional sense length */
 617         else
 618                 sense_buf[7] = 6;       /* Additional sense length */
 619
 620         sense_buf[12] = sense_code;     /* Additional sense code */
 621         sense_buf[13] = a_sense_code;   /* Additional sense code qualifier */
 622         if (sense_key == ILLEGAL_REQUEST) {
 623                 sense_buf[15] = 0;
 624
 625                 if (sense_code == SENCODE_INVALID_PARAM_FIELD)
 626                         sense_buf[15] = 0x80;/* Std sense key specific field */
 627                 /* Illegal parameter is in the parameter block */
 628
 629                 if (sense_code == SENCODE_INVALID_CDB_FIELD)
 630                         sense_buf[15] = 0xc0;/* Std sense key specific field */
 631                 /* Illegal parameter is in the CDB block */
 632                 sense_buf[15] |= bit_pointer;
 633                 sense_buf[16] = field_pointer >> 8;     /* MSB */
 634                 sense_buf[17] = field_pointer;          /* LSB */
 635         }
 636 }
 637
 638 int aac_get_adapter_info(struct aac_dev* dev)
 639 {
 640         struct fib* fibptr;
 641         int rcode;
 642         u32 tmp;
 643         struct aac_adapter_info *info;
 644         struct aac_bus_info *command;
 645         struct aac_bus_info_response *bus_info;
 646
 647         if (!(fibptr = fib_alloc(dev)))
 648                 return -ENOMEM;
 649
 650         fib_init(fibptr);
 651         info = (struct aac_adapter_info *) fib_data(fibptr);
 652         memset(info,0,sizeof(*info));
 653
 654         rcode = fib_send(RequestAdapterInfo,
 655                          fibptr,
 656                          sizeof(*info),
 657                          FsaNormal,
 658                          1, 1,
 659                          NULL,
 660                          NULL);
 661
 662         if (rcode < 0) {
 663                 fib_complete(fibptr);
 664                 fib_free(fibptr);
 665                 return rcode;
 666         }
 667         memcpy(&dev->adapter_info, info, sizeof(*info));
 668
 669         if (dev->adapter_info.options & AAC_OPT_SUPPLEMENT_ADAPTER_INFO) {
 670                 struct aac_supplement_adapter_info * info;
 671
 672                 fib_init(fibptr);
 673
 674                 info = (struct aac_supplement_adapter_info *) fib_data(fibptr);
 675
 676                 memset(info,0,sizeof(*info));
 677
 678                 rcode = fib_send(RequestSupplementAdapterInfo,
 679                                  fibptr,
 680                                  sizeof(*info),
 681                                  FsaNormal,
 682                                  1, 1,
 683                                  NULL,
 684                                  NULL);
 685
 686                 if (rcode >= 0)
 687                         memcpy(&dev->supplement_adapter_info, info, sizeof(*info));
 688         }
 689
 690
 691         /*
 692          * GetBusInfo
 693          */
 694
 695         fib_init(fibptr);
 696
 697         bus_info = (struct aac_bus_info_response *) fib_data(fibptr);
 698
 699         memset(bus_info, 0, sizeof(*bus_info));
 700
 701         command = (struct aac_bus_info *)bus_info;
 702
 703         command->Command = cpu_to_le32(VM_Ioctl);
 704         command->ObjType = cpu_to_le32(FT_DRIVE);
 705         command->MethodId = cpu_to_le32(1);
 706         command->CtlCmd = cpu_to_le32(GetBusInfo);
 707
 708         rcode = fib_send(ContainerCommand,
 709                          fibptr,
 710                          sizeof (*bus_info),
 711                          FsaNormal,
 712                          1, 1,
 713                          NULL, NULL);
 714
 715         if (rcode >= 0 && le32_to_cpu(bus_info->Status) == ST_OK) {
 716                 dev->maximum_num_physicals = le32_to_cpu(bus_info->TargetsPerBus);
 717                 dev->maximum_num_channels = le32_to_cpu(bus_info->BusCount);
 718         }
 719
 720         tmp = le32_to_cpu(dev->adapter_info.kernelrev);
 721         printk(KERN_INFO "%s%d: kernel %d.%d-%d[%d] %.*s\n",
 722                         dev->name,
 723                         dev->id,
 724                         tmp>>24,
 725                         (tmp>>16)&0xff,
 726                         tmp&0xff,
 727                         le32_to_cpu(dev->adapter_info.kernelbuild),
 728                         (int)sizeof(dev->supplement_adapter_info.BuildDate),
 729                         dev->supplement_adapter_info.BuildDate);
 730         tmp = le32_to_cpu(dev->adapter_info.monitorrev);
 731         printk(KERN_INFO "%s%d: monitor %d.%d-%d[%d]\n",
 732                         dev->name, dev->id,
 733                         tmp>>24,(tmp>>16)&0xff,tmp&0xff,
 734                         le32_to_cpu(dev->adapter_info.monitorbuild));
 735         tmp = le32_to_cpu(dev->adapter_info.biosrev);
 736         printk(KERN_INFO "%s%d: bios %d.%d-%d[%d]\n",
 737                         dev->name, dev->id,
 738                         tmp>>24,(tmp>>16)&0xff,tmp&0xff,
 739                         le32_to_cpu(dev->adapter_info.biosbuild));
 740         if (le32_to_cpu(dev->adapter_info.serial[0]) != 0xBAD0)
 741                 printk(KERN_INFO "%s%d: serial %x\n",
 742                         dev->name, dev->id,
 743                         le32_to_cpu(dev->adapter_info.serial[0]));
 744
 745         dev->nondasd_support = 0;
 746         dev->raid_scsi_mode = 0;
 747         if(dev->adapter_info.options & AAC_OPT_NONDASD){
 748                 dev->nondasd_support = 1;
 749         }
 750
 751         /*
 752          * If the firmware supports ROMB RAID/SCSI mode and we are currently
 753          * in RAID/SCSI mode, set the flag. For now if in this mode we will
 754          * force nondasd support on. If we decide to allow the non-dasd flag
 755          * additional changes changes will have to be made to support
 756          * RAID/SCSI.  the function aac_scsi_cmd in this module will have to be
 757          * changed to support the new dev->raid_scsi_mode flag instead of
 758          * leaching off of the dev->nondasd_support flag. Also in linit.c the
 759          * function aac_detect will have to be modified where it sets up the
 760          * max number of channels based on the aac->nondasd_support flag only.
 761          */
 762         if ((dev->adapter_info.options & AAC_OPT_SCSI_MANAGED) &&
 763             (dev->adapter_info.options & AAC_OPT_RAID_SCSI_MODE)) {
 764                 dev->nondasd_support = 1;
 765                 dev->raid_scsi_mode = 1;
 766         }
 767         if (dev->raid_scsi_mode != 0)
 768                 printk(KERN_INFO "%s%d: ROMB RAID/SCSI mode enabled\n",
 769                                 dev->name, dev->id);
 770
 771         if(nondasd != -1) {
 772                 dev->nondasd_support = (nondasd!=0);
 773         }
 774         if(dev->nondasd_support != 0){
 775                 printk(KERN_INFO "%s%d: Non-DASD support enabled.\n",dev->name, dev->id);
 776         }
 777
 778         dev->dac_support = 0;
 779         if( (sizeof(dma_addr_t) > 4) && (dev->adapter_info.options & AAC_OPT_SGMAP_HOST64)){
 780                 printk(KERN_INFO "%s%d: 64bit support enabled.\n", dev->name, dev->id);
 781                 dev->dac_support = 1;
 782         }
 783
 784         if(dacmode != -1) {
 785                 dev->dac_support = (dacmode!=0);
 786         }
 787         if(dev->dac_support != 0) {
 788                 if (!pci_set_dma_mask(dev->pdev, 0xFFFFFFFFFFFFFFFFULL) &&
 789                         !pci_set_consistent_dma_mask(dev->pdev, 0xFFFFFFFFFFFFFFFFULL)) {
 790                         printk(KERN_INFO"%s%d: 64 Bit DAC enabled\n",
 791                                 dev->name, dev->id);
 792                 } else if (!pci_set_dma_mask(dev->pdev, 0xFFFFFFFFULL) &&
 793                         !pci_set_consistent_dma_mask(dev->pdev, 0xFFFFFFFFULL)) {
 794                         printk(KERN_INFO"%s%d: DMA mask set failed, 64 Bit DAC disabled\n",
 795                                 dev->name, dev->id);
 796                         dev->dac_support = 0;
 797                 } else {
 798                         printk(KERN_WARNING"%s%d: No suitable DMA available.\n",
 799                                 dev->name, dev->id);
 800                         rcode = -ENOMEM;
 801                 }
 802         }
 803         /*
 804          * 57 scatter gather elements
 805          */
 806         if (!(dev->raw_io_interface)) {
 807                 dev->scsi_host_ptr->sg_tablesize = (dev->max_fib_size -
 808                         sizeof(struct aac_fibhdr) -
 809                         sizeof(struct aac_write) + sizeof(struct sgmap)) /
 810                                 sizeof(struct sgmap);
 811                 if (dev->dac_support) {
 812                         /*
 813                          * 38 scatter gather elements
 814                          */
 815                         dev->scsi_host_ptr->sg_tablesize =
 816                                 (dev->max_fib_size -
 817                                 sizeof(struct aac_fibhdr) -
 818                                 sizeof(struct aac_write64) +
 819                                 sizeof(struct sgmap64)) /
 820                                         sizeof(struct sgmap64);
 821                 }
 822                 dev->scsi_host_ptr->max_sectors = AAC_MAX_32BIT_SGBCOUNT;
 823                 if(!(dev->adapter_info.options & AAC_OPT_NEW_COMM)) {
 824                         /*
 825                          * Worst case size that could cause sg overflow when
 826                          * we break up SG elements that are larger than 64KB.
 827                          * Would be nice if we could tell the SCSI layer what
 828                          * the maximum SG element size can be. Worst case is
 829                          * (sg_tablesize-1) 4KB elements with one 64KB
 830                          * element.
 831                          *      32bit -> 468 or 238KB   64bit -> 424 or 212KB
 832                          */
 833                         dev->scsi_host_ptr->max_sectors =
 834                           (dev->scsi_host_ptr->sg_tablesize * 8) + 112;
 835                 }
 836         }
 837
 838         fib_complete(fibptr);
 839         fib_free(fibptr);
 840
 841         return rcode;
 842 }
 843
 844
 845 static void io_callback(void *context, struct fib * fibptr)
 846 {
 847         struct aac_dev *dev;
 848         struct aac_read_reply *readreply;
 849         struct scsi_cmnd *scsicmd;
 850         u32 cid;
 851
 852         scsicmd = (struct scsi_cmnd *) context;
 853
 854         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
 855         cid = ID_LUN_TO_CONTAINER(scsicmd->device->id, scsicmd->device->lun);
 856
 857         dprintk((KERN_DEBUG "io_callback[cpu %d]: lba = %u, t = %ld.\n", smp_processor_id(), ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3], jiffies));
 858
 859         if (fibptr == NULL)
 860                 BUG();
 861
 862         if(scsicmd->use_sg)
 863                 pci_unmap_sg(dev->pdev,
 864                         (struct scatterlist *)scsicmd->buffer,
 865                         scsicmd->use_sg,
 866                         scsicmd->sc_data_direction);
 867         else if(scsicmd->request_bufflen)
 868                 pci_unmap_single(dev->pdev, scsicmd->SCp.dma_handle,
 869                                  scsicmd->request_bufflen,
 870                                  scsicmd->sc_data_direction);
 871         readreply = (struct aac_read_reply *)fib_data(fibptr);
 872         if (le32_to_cpu(readreply->status) == ST_OK)
 873                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
 874         else {
 875 #ifdef AAC_DETAILED_STATUS_INFO
 876                 printk(KERN_WARNING "io_callback: io failed, status = %d\n",
 877                   le32_to_cpu(readreply->status));
 878 #endif
 879                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
 880                 set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
 881                                     HARDWARE_ERROR,
 882                                     SENCODE_INTERNAL_TARGET_FAILURE,
 883                                     ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
 884                                     0, 0);
 885                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
 886                   (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
 887                     ? sizeof(scsicmd->sense_buffer)
 888                     : sizeof(dev->fsa_dev[cid].sense_data));
 889         }
 890         fib_complete(fibptr);
 891         fib_free(fibptr);
 892
 893         aac_io_done(scsicmd);
 894 }
 895
 896 static int aac_read(struct scsi_cmnd * scsicmd, int cid)
 897 {
 898         u32 lba;
 899         u32 count;
 900         int status;
 901
 902         u16 fibsize;
 903         struct aac_dev *dev;
 904         struct fib * cmd_fibcontext;
 905
 906         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
 907         /*
 908          *      Get block address and transfer length
 909          */
 910         if (scsicmd->cmnd[0] == READ_6) /* 6 byte command */
 911         {
 912                 dprintk((KERN_DEBUG "aachba: received a read(6) command on id %d.\n", cid));
 913
 914                 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
 915                 count = scsicmd->cmnd[4];
 916
 917                 if (count == 0)
 918                         count = 256;
 919         } else {
 920                 dprintk((KERN_DEBUG "aachba: received a read(10) command on id %d.\n", cid));
 921
 922                 lba = (scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
 923                 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
 924         }
 925         dprintk((KERN_DEBUG "aac_read[cpu %d]: lba = %u, t = %ld.\n",
 926           smp_processor_id(), (unsigned long long)lba, jiffies));
 927         /*
 928          *      Alocate and initialize a Fib
 929          */
 930         if (!(cmd_fibcontext = fib_alloc(dev))) {
 931                 return -1;
 932         }
 933
 934         fib_init(cmd_fibcontext);
 935
 936         if (dev->raw_io_interface) {
 937                 struct aac_raw_io *readcmd;
 938                 readcmd = (struct aac_raw_io *) fib_data(cmd_fibcontext);
 939                 readcmd->block[0] = cpu_to_le32(lba);
 940                 readcmd->block[1] = 0;
 941                 readcmd->count = cpu_to_le32(count<<9);
 942                 readcmd->cid = cpu_to_le16(cid);
 943                 readcmd->flags = cpu_to_le16(1);
 944                 readcmd->bpTotal = 0;
 945                 readcmd->bpComplete = 0;
 946
 947                 aac_build_sgraw(scsicmd, &readcmd->sg);
 948                 fibsize = sizeof(struct aac_raw_io) + ((le32_to_cpu(readcmd->sg.count) - 1) * sizeof (struct sgentryraw));
 949                 if (fibsize > (dev->max_fib_size - sizeof(struct aac_fibhdr)))
 950                         BUG();
 951                 /*
 952                  *      Now send the Fib to the adapter
 953                  */
 954                 status = fib_send(ContainerRawIo,
 955                           cmd_fibcontext,
 956                           fibsize,
 957                           FsaNormal,
 958                           0, 1,
 959                           (fib_callback) io_callback,
 960                           (void *) scsicmd);
 961         } else if (dev->dac_support == 1) {
 962                 struct aac_read64 *readcmd;
 963                 readcmd = (struct aac_read64 *) fib_data(cmd_fibcontext);
 964                 readcmd->command = cpu_to_le32(VM_CtHostRead64);
 965                 readcmd->cid = cpu_to_le16(cid);
 966                 readcmd->sector_count = cpu_to_le16(count);
 967                 readcmd->block = cpu_to_le32(lba);
 968                 readcmd->pad   = 0;
 969                 readcmd->flags = 0;
 970
 971                 aac_build_sg64(scsicmd, &readcmd->sg);
 972                 fibsize = sizeof(struct aac_read64) +
 973                         ((le32_to_cpu(readcmd->sg.count) - 1) *
 974                          sizeof (struct sgentry64));
 975                 BUG_ON (fibsize > (dev->max_fib_size -
 976                                         sizeof(struct aac_fibhdr)));
 977                 /*
 978                  *      Now send the Fib to the adapter
 979                  */
 980                 status = fib_send(ContainerCommand64,
 981                           cmd_fibcontext,
 982                           fibsize,
 983                           FsaNormal,
 984                           0, 1,
 985                           (fib_callback) io_callback,
 986                           (void *) scsicmd);
 987         } else {
 988                 struct aac_read *readcmd;
 989                 readcmd = (struct aac_read *) fib_data(cmd_fibcontext);
 990                 readcmd->command = cpu_to_le32(VM_CtBlockRead);
 991                 readcmd->cid = cpu_to_le32(cid);
 992                 readcmd->block = cpu_to_le32(lba);
 993                 readcmd->count = cpu_to_le32(count * 512);
 994
 995                 aac_build_sg(scsicmd, &readcmd->sg);
 996                 fibsize = sizeof(struct aac_read) +
 997                         ((le32_to_cpu(readcmd->sg.count) - 1) *
 998                          sizeof (struct sgentry));
 999                 BUG_ON (fibsize > (dev->max_fib_size -
1000                                         sizeof(struct aac_fibhdr)));
1001                 /*
1002                  *      Now send the Fib to the adapter
1003                  */
1004                 status = fib_send(ContainerCommand,
1005                           cmd_fibcontext,
1006                           fibsize,
1007                           FsaNormal,
1008                           0, 1,
1009                           (fib_callback) io_callback,
1010                           (void *) scsicmd);
1011         }
1012
1013
1014
1015         /*
1016          *      Check that the command queued to the controller
1017          */
1018         if (status == -EINPROGRESS)
1019                 return 0;
1020
1021         printk(KERN_WARNING "aac_read: fib_send failed with status: %d.\n", status);
1022         /*
1023          *      For some reason, the Fib didn't queue, return QUEUE_FULL
1024          */
1025         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_TASK_SET_FULL;
1026         aac_io_done(scsicmd);
1027         fib_complete(cmd_fibcontext);
1028         fib_free(cmd_fibcontext);
1029         return 0;
1030 }
1031
1032 static int aac_write(struct scsi_cmnd * scsicmd, int cid)
1033 {
1034         u32 lba;
1035         u32 count;
1036         int status;
1037         u16 fibsize;
1038         struct aac_dev *dev;
1039         struct fib * cmd_fibcontext;
1040
1041         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1042         /*
1043          *      Get block address and transfer length
1044          */
1045         if (scsicmd->cmnd[0] == WRITE_6)        /* 6 byte command */
1046         {
1047                 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
1048                 count = scsicmd->cmnd[4];
1049                 if (count == 0)
1050                         count = 256;
1051         } else {
1052                 dprintk((KERN_DEBUG "aachba: received a write(10) command on id %d.\n", cid));
1053                 lba = (scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1054                 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
1055         }
1056         dprintk((KERN_DEBUG "aac_write[cpu %d]: lba = %u, t = %ld.\n",
1057           smp_processor_id(), (unsigned long long)lba, jiffies));
1058         /*
1059          *      Allocate and initialize a Fib then setup a BlockWrite command
1060          */
1061         if (!(cmd_fibcontext = fib_alloc(dev))) {
1062                 scsicmd->result = DID_ERROR << 16;
1063                 aac_io_done(scsicmd);
1064                 return 0;
1065         }
1066         fib_init(cmd_fibcontext);
1067
1068         if (dev->raw_io_interface) {
1069                 struct aac_raw_io *writecmd;
1070                 writecmd = (struct aac_raw_io *) fib_data(cmd_fibcontext);
1071                 writecmd->block[0] = cpu_to_le32(lba);
1072                 writecmd->block[1] = 0;
1073                 writecmd->count = cpu_to_le32(count<<9);
1074                 writecmd->cid = cpu_to_le16(cid);
1075                 writecmd->flags = 0;
1076                 writecmd->bpTotal = 0;
1077                 writecmd->bpComplete = 0;
1078
1079                 aac_build_sgraw(scsicmd, &writecmd->sg);
1080                 fibsize = sizeof(struct aac_raw_io) + ((le32_to_cpu(writecmd->sg.count) - 1) * sizeof (struct sgentryraw));
1081                 if (fibsize > (dev->max_fib_size - sizeof(struct aac_fibhdr)))
1082                         BUG();
1083                 /*
1084                  *      Now send the Fib to the adapter
1085                  */
1086                 status = fib_send(ContainerRawIo,
1087                           cmd_fibcontext,
1088                           fibsize,
1089                           FsaNormal,
1090                           0, 1,
1091                           (fib_callback) io_callback,
1092                           (void *) scsicmd);
1093         } else if (dev->dac_support == 1) {
1094                 struct aac_write64 *writecmd;
1095                 writecmd = (struct aac_write64 *) fib_data(cmd_fibcontext);
1096                 writecmd->command = cpu_to_le32(VM_CtHostWrite64);
1097                 writecmd->cid = cpu_to_le16(cid);
1098                 writecmd->sector_count = cpu_to_le16(count);
1099                 writecmd->block = cpu_to_le32(lba);
1100                 writecmd->pad   = 0;
1101                 writecmd->flags = 0;
1102
1103                 aac_build_sg64(scsicmd, &writecmd->sg);
1104                 fibsize = sizeof(struct aac_write64) +
1105                         ((le32_to_cpu(writecmd->sg.count) - 1) *
1106                          sizeof (struct sgentry64));
1107                 BUG_ON (fibsize > (dev->max_fib_size -
1108                                         sizeof(struct aac_fibhdr)));
1109                 /*
1110                  *      Now send the Fib to the adapter
1111                  */
1112                 status = fib_send(ContainerCommand64,
1113                           cmd_fibcontext,
1114                           fibsize,
1115                           FsaNormal,
1116                           0, 1,
1117                           (fib_callback) io_callback,
1118                           (void *) scsicmd);
1119         } else {
1120                 struct aac_write *writecmd;
1121                 writecmd = (struct aac_write *) fib_data(cmd_fibcontext);
1122                 writecmd->command = cpu_to_le32(VM_CtBlockWrite);
1123                 writecmd->cid = cpu_to_le32(cid);
1124                 writecmd->block = cpu_to_le32(lba);
1125                 writecmd->count = cpu_to_le32(count * 512);
1126                 writecmd->sg.count = cpu_to_le32(1);
1127                 /* ->stable is not used - it did mean which type of write */
1128
1129                 aac_build_sg(scsicmd, &writecmd->sg);
1130                 fibsize = sizeof(struct aac_write) +
1131                         ((le32_to_cpu(writecmd->sg.count) - 1) *
1132                          sizeof (struct sgentry));
1133                 BUG_ON (fibsize > (dev->max_fib_size -
1134                                         sizeof(struct aac_fibhdr)));
1135                 /*
1136                  *      Now send the Fib to the adapter
1137                  */
1138                 status = fib_send(ContainerCommand,
1139                           cmd_fibcontext,
1140                           fibsize,
1141                           FsaNormal,
1142                           0, 1,
1143                           (fib_callback) io_callback,
1144                           (void *) scsicmd);
1145         }
1146
1147         /*
1148          *      Check that the command queued to the controller
1149          */
1150         if (status == -EINPROGRESS)
1151         {
1152                 return 0;
1153         }
1154
1155         printk(KERN_WARNING "aac_write: fib_send failed with status: %d\n", status);
1156         /*
1157          *      For some reason, the Fib didn't queue, return QUEUE_FULL
1158          */
1159         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_TASK_SET_FULL;
1160         aac_io_done(scsicmd);
1161
1162         fib_complete(cmd_fibcontext);
1163         fib_free(cmd_fibcontext);
1164         return 0;
1165 }
1166
1167 static void synchronize_callback(void *context, struct fib *fibptr)
1168 {
1169         struct aac_synchronize_reply *synchronizereply;
1170         struct scsi_cmnd *cmd;
1171
1172         cmd = context;
1173
1174         dprintk((KERN_DEBUG "synchronize_callback[cpu %d]: t = %ld.\n",
1175                                 smp_processor_id(), jiffies));
1176         BUG_ON(fibptr == NULL);
1177
1178
1179         synchronizereply = fib_data(fibptr);
1180         if (le32_to_cpu(synchronizereply->status) == CT_OK)
1181                 cmd->result = DID_OK << 16 |
1182                         COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1183         else {
1184                 struct scsi_device *sdev = cmd->device;
1185                 struct aac_dev *dev = (struct aac_dev *)sdev->host->hostdata;
1186                 u32 cid = ID_LUN_TO_CONTAINER(sdev->id, sdev->lun);
1187                 printk(KERN_WARNING
1188                      "synchronize_callback: synchronize failed, status = %d\n",
1189                      le32_to_cpu(synchronizereply->status));
1190                 cmd->result = DID_OK << 16 |
1191                         COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1192                 set_sense((u8 *)&dev->fsa_dev[cid].sense_data,
1193                                     HARDWARE_ERROR,
1194                                     SENCODE_INTERNAL_TARGET_FAILURE,
1195                                     ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
1196                                     0, 0);
1197                 memcpy(cmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1198                   min(sizeof(dev->fsa_dev[cid].sense_data),
1199                           sizeof(cmd->sense_buffer)));
1200         }
1201
1202         fib_complete(fibptr);
1203         fib_free(fibptr);
1204         aac_io_done(cmd);
1205 }
1206
1207 static int aac_synchronize(struct scsi_cmnd *scsicmd, int cid)
1208 {
1209         int status;
1210         struct fib *cmd_fibcontext;
1211         struct aac_synchronize *synchronizecmd;
1212         struct scsi_cmnd *cmd;
1213         struct scsi_device *sdev = scsicmd->device;
1214         int active = 0;
1215         unsigned long flags;
1216
1217         /*
1218          * Wait for all commands to complete to this specific
1219          * target (block).
1220          */
1221         spin_lock_irqsave(&sdev->list_lock, flags);
1222         list_for_each_entry(cmd, &sdev->cmd_list, list)
1223                 if (cmd != scsicmd && cmd->serial_number != 0) {
1224                         ++active;
1225                         break;
1226                 }
1227
1228         spin_unlock_irqrestore(&sdev->list_lock, flags);
1229
1230         /*
1231          *      Yield the processor (requeue for later)
1232          */
1233         if (active)
1234                 return SCSI_MLQUEUE_DEVICE_BUSY;
1235
1236         /*
1237          *      Allocate and initialize a Fib
1238          */
1239         if (!(cmd_fibcontext =
1240             fib_alloc((struct aac_dev *)scsicmd->device->host->hostdata)))
1241                 return SCSI_MLQUEUE_HOST_BUSY;
1242
1243         fib_init(cmd_fibcontext);
1244
1245         synchronizecmd = fib_data(cmd_fibcontext);
1246         synchronizecmd->command = cpu_to_le32(VM_ContainerConfig);
1247         synchronizecmd->type = cpu_to_le32(CT_FLUSH_CACHE);
1248         synchronizecmd->cid = cpu_to_le32(cid);
1249         synchronizecmd->count =
1250              cpu_to_le32(sizeof(((struct aac_synchronize_reply *)NULL)->data));
1251
1252         /*
1253          *      Now send the Fib to the adapter
1254          */
1255         status = fib_send(ContainerCommand,
1256                   cmd_fibcontext,
1257                   sizeof(struct aac_synchronize),
1258                   FsaNormal,
1259                   0, 1,
1260                   (fib_callback)synchronize_callback,
1261                   (void *)scsicmd);
1262
1263         /*
1264          *      Check that the command queued to the controller
1265          */
1266         if (status == -EINPROGRESS)
1267                 return 0;
1268
1269         printk(KERN_WARNING
1270                 "aac_synchronize: fib_send failed with status: %d.\n", status);
1271         fib_complete(cmd_fibcontext);
1272         fib_free(cmd_fibcontext);
1273         return SCSI_MLQUEUE_HOST_BUSY;
1274 }
1275
1276 /**
1277  *      aac_scsi_cmd()          -       Process SCSI command
1278  *      @scsicmd:               SCSI command block
1279  *
1280  *      Emulate a SCSI command and queue the required request for the
1281  *      aacraid firmware.
1282  */
1283
1284 int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
1285 {
1286         u32 cid = 0;
1287         struct Scsi_Host *host = scsicmd->device->host;
1288         struct aac_dev *dev = (struct aac_dev *)host->hostdata;
1289         struct fsa_dev_info *fsa_dev_ptr = dev->fsa_dev;
1290         int cardtype = dev->cardtype;
1291         int ret;
1292
1293         /*
1294          *      If the bus, id or lun is out of range, return fail
1295          *      Test does not apply to ID 16, the pseudo id for the controller
1296          *      itself.
1297          */
1298         if (scsicmd->device->id != host->this_id) {
1299                 if ((scsicmd->device->channel == 0) ){
1300                         if( (scsicmd->device->id >= dev->maximum_num_containers) || (scsicmd->device->lun != 0)){
1301                                 scsicmd->result = DID_NO_CONNECT << 16;
1302                                 scsicmd->scsi_done(scsicmd);
1303                                 return 0;
1304                         }
1305                         cid = ID_LUN_TO_CONTAINER(scsicmd->device->id, scsicmd->device->lun);
1306
1307                         /*
1308                          *      If the target container doesn't exist, it may have
1309                          *      been newly created
1310                          */
1311                         if ((fsa_dev_ptr[cid].valid & 1) == 0) {
1312                                 switch (scsicmd->cmnd[0]) {
1313                                 case INQUIRY:
1314                                 case READ_CAPACITY:
1315                                 case TEST_UNIT_READY:
1316                                         spin_unlock_irq(host->host_lock);
1317                                         probe_container(dev, cid);
1318                                         spin_lock_irq(host->host_lock);
1319                                         if (fsa_dev_ptr[cid].valid == 0) {
1320                                                 scsicmd->result = DID_NO_CONNECT << 16;
1321                                                 scsicmd->scsi_done(scsicmd);
1322                                                 return 0;
1323                                         }
1324                                 default:
1325                                         break;
1326                                 }
1327                         }
1328                         /*
1329                          *      If the target container still doesn't exist,
1330                          *      return failure
1331                          */
1332                         if (fsa_dev_ptr[cid].valid == 0) {
1333                                 scsicmd->result = DID_BAD_TARGET << 16;
1334                                 scsicmd->scsi_done(scsicmd);
1335                                 return 0;
1336                         }
1337                 } else {  /* check for physical non-dasd devices */
1338                         if(dev->nondasd_support == 1){
1339                                 return aac_send_srb_fib(scsicmd);
1340                         } else {
1341                                 scsicmd->result = DID_NO_CONNECT << 16;
1342                                 scsicmd->scsi_done(scsicmd);
1343                                 return 0;
1344                         }
1345                 }
1346         }
1347         /*
1348          * else Command for the controller itself
1349          */
1350         else if ((scsicmd->cmnd[0] != INQUIRY) &&       /* only INQUIRY & TUR cmnd supported for controller */
1351                 (scsicmd->cmnd[0] != TEST_UNIT_READY))
1352         {
1353                 dprintk((KERN_WARNING "Only INQUIRY & TUR command supported for controller, rcvd = 0x%x.\n", scsicmd->cmnd[0]));
1354                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1355                 set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
1356                             ILLEGAL_REQUEST,
1357                             SENCODE_INVALID_COMMAND,
1358                             ASENCODE_INVALID_COMMAND, 0, 0, 0, 0);
1359                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1360                   (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
1361                     ? sizeof(scsicmd->sense_buffer)
1362                     : sizeof(dev->fsa_dev[cid].sense_data));
1363                 scsicmd->scsi_done(scsicmd);
1364                 return 0;
1365         }
1366
1367
1368         /* Handle commands here that don't really require going out to the adapter */
1369         switch (scsicmd->cmnd[0]) {
1370         case INQUIRY:
1371         {
1372                 struct inquiry_data inq_data;
1373
1374                 dprintk((KERN_DEBUG "INQUIRY command, ID: %d.\n", scsicmd->device->id));
1375                 memset(&inq_data, 0, sizeof (struct inquiry_data));
1376
1377                 inq_data.inqd_ver = 2;  /* claim compliance to SCSI-2 */
1378                 inq_data.inqd_dtq = 0x80;       /* set RMB bit to one indicating that the medium is removable */
1379                 inq_data.inqd_rdf = 2;  /* A response data format value of two indicates that the data shall be in the format specified in SCSI-2 */
1380                 inq_data.inqd_len = 31;
1381                 /*Format for "pad2" is  RelAdr | WBus32 | WBus16 |  Sync  | Linked |Reserved| CmdQue | SftRe */
1382                 inq_data.inqd_pad2= 0x32 ;       /*WBus16|Sync|CmdQue */
1383                 /*
1384                  *      Set the Vendor, Product, and Revision Level
1385                  *      see: <vendor>.c i.e. aac.c
1386                  */
1387                 if (scsicmd->device->id == host->this_id) {
1388                         setinqstr(cardtype, (void *) (inq_data.inqd_vid), (sizeof(container_types)/sizeof(char *)));
1389                         inq_data.inqd_pdt = INQD_PDT_PROC;      /* Processor device */
1390                         aac_internal_transfer(scsicmd, &inq_data, 0, sizeof(inq_data));
1391                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1392                         scsicmd->scsi_done(scsicmd);
1393                         return 0;
1394                 }
1395                 setinqstr(cardtype, (void *) (inq_data.inqd_vid), fsa_dev_ptr[cid].type);
1396                 inq_data.inqd_pdt = INQD_PDT_DA;        /* Direct/random access device */
1397                 aac_internal_transfer(scsicmd, &inq_data, 0, sizeof(inq_data));
1398                 return aac_get_container_name(scsicmd, cid);
1399         }
1400         case READ_CAPACITY:
1401         {
1402                 u32 capacity;
1403                 char cp[8];
1404
1405                 dprintk((KERN_DEBUG "READ CAPACITY command.\n"));
1406                 if (fsa_dev_ptr[cid].size <= 0x100000000LL)
1407                         capacity = fsa_dev_ptr[cid].size - 1;
1408                 else
1409                         capacity = (u32)-1;
1410
1411                 cp[0] = (capacity >> 24) & 0xff;
1412                 cp[1] = (capacity >> 16) & 0xff;
1413                 cp[2] = (capacity >> 8) & 0xff;
1414                 cp[3] = (capacity >> 0) & 0xff;
1415                 cp[4] = 0;
1416                 cp[5] = 0;
1417                 cp[6] = 2;
1418                 cp[7] = 0;
1419                 aac_internal_transfer(scsicmd, cp, 0, sizeof(cp));
1420
1421                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1422                 scsicmd->scsi_done(scsicmd);
1423
1424                 return 0;
1425         }
1426
1427         case MODE_SENSE:
1428         {
1429                 char mode_buf[4];
1430
1431                 dprintk((KERN_DEBUG "MODE SENSE command.\n"));
1432                 mode_buf[0] = 3;        /* Mode data length */
1433                 mode_buf[1] = 0;        /* Medium type - default */
1434                 mode_buf[2] = 0;        /* Device-specific param, bit 8: 0/1 = write enabled/protected */
1435                 mode_buf[3] = 0;        /* Block descriptor length */
1436
1437                 aac_internal_transfer(scsicmd, mode_buf, 0, sizeof(mode_buf));
1438                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1439                 scsicmd->scsi_done(scsicmd);
1440
1441                 return 0;
1442         }
1443         case MODE_SENSE_10:
1444         {
1445                 char mode_buf[8];
1446
1447                 dprintk((KERN_DEBUG "MODE SENSE 10 byte command.\n"));
1448                 mode_buf[0] = 0;        /* Mode data length (MSB) */
1449                 mode_buf[1] = 6;        /* Mode data length (LSB) */
1450                 mode_buf[2] = 0;        /* Medium type - default */
1451                 mode_buf[3] = 0;        /* Device-specific param, bit 8: 0/1 = write enabled/protected */
1452                 mode_buf[4] = 0;        /* reserved */
1453                 mode_buf[5] = 0;        /* reserved */
1454                 mode_buf[6] = 0;        /* Block descriptor length (MSB) */
1455                 mode_buf[7] = 0;        /* Block descriptor length (LSB) */
1456                 aac_internal_transfer(scsicmd, mode_buf, 0, sizeof(mode_buf));
1457
1458                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1459                 scsicmd->scsi_done(scsicmd);
1460
1461                 return 0;
1462         }
1463         case REQUEST_SENSE:
1464                 dprintk((KERN_DEBUG "REQUEST SENSE command.\n"));
1465                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data, sizeof (struct sense_data));
1466                 memset(&dev->fsa_dev[cid].sense_data, 0, sizeof (struct sense_data));
1467                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1468                 scsicmd->scsi_done(scsicmd);
1469                 return 0;
1470
1471         case ALLOW_MEDIUM_REMOVAL:
1472                 dprintk((KERN_DEBUG "LOCK command.\n"));
1473                 if (scsicmd->cmnd[4])
1474                         fsa_dev_ptr[cid].locked = 1;
1475                 else
1476                         fsa_dev_ptr[cid].locked = 0;
1477
1478                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1479                 scsicmd->scsi_done(scsicmd);
1480                 return 0;
1481         /*
1482          *      These commands are all No-Ops
1483          */
1484         case TEST_UNIT_READY:
1485         case RESERVE:
1486         case RELEASE:
1487         case REZERO_UNIT:
1488         case REASSIGN_BLOCKS:
1489         case SEEK_10:
1490         case START_STOP:
1491                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1492                 scsicmd->scsi_done(scsicmd);
1493                 return 0;
1494         }
1495
1496         switch (scsicmd->cmnd[0])
1497         {
1498                 case READ_6:
1499                 case READ_10:
1500                         /*
1501                          *      Hack to keep track of ordinal number of the device that
1502                          *      corresponds to a container. Needed to convert
1503                          *      containers to /dev/sd device names
1504                          */
1505
1506                         spin_unlock_irq(host->host_lock);
1507                         if  (scsicmd->request->rq_disk)
1508                                 memcpy(fsa_dev_ptr[cid].devname,
1509                                         scsicmd->request->rq_disk->disk_name,
1510                                         8);
1511
1512                         ret = aac_read(scsicmd, cid);
1513                         spin_lock_irq(host->host_lock);
1514                         return ret;
1515
1516                 case WRITE_6:
1517                 case WRITE_10:
1518                         spin_unlock_irq(host->host_lock);
1519                         ret = aac_write(scsicmd, cid);
1520                         spin_lock_irq(host->host_lock);
1521                         return ret;
1522
1523                 case SYNCHRONIZE_CACHE:
1524                         /* Issue FIB to tell Firmware to flush it's cache */
1525                         return aac_synchronize(scsicmd, cid);
1526
1527                 default:
1528                         /*
1529                          *      Unhandled commands
1530                          */
1531                         dprintk((KERN_WARNING "Unhandled SCSI Command: 0x%x.\n", scsicmd->cmnd[0]));
1532                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1533                         set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
1534                                 ILLEGAL_REQUEST, SENCODE_INVALID_COMMAND,
1535                                 ASENCODE_INVALID_COMMAND, 0, 0, 0, 0);
1536                         memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1537                           (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
1538                             ? sizeof(scsicmd->sense_buffer)
1539                             : sizeof(dev->fsa_dev[cid].sense_data));
1540                         scsicmd->scsi_done(scsicmd);
1541                         return 0;
1542         }
1543 }
1544
1545 static int query_disk(struct aac_dev *dev, void __user *arg)
1546 {
1547         struct aac_query_disk qd;
1548         struct fsa_dev_info *fsa_dev_ptr;
1549
1550         fsa_dev_ptr = dev->fsa_dev;
1551         if (copy_from_user(&qd, arg, sizeof (struct aac_query_disk)))
1552                 return -EFAULT;
1553         if (qd.cnum == -1)
1554                 qd.cnum = ID_LUN_TO_CONTAINER(qd.id, qd.lun);
1555         else if ((qd.bus == -1) && (qd.id == -1) && (qd.lun == -1))
1556         {
1557                 if (qd.cnum < 0 || qd.cnum >= dev->maximum_num_containers)
1558                         return -EINVAL;
1559                 qd.instance = dev->scsi_host_ptr->host_no;
1560                 qd.bus = 0;
1561                 qd.id = CONTAINER_TO_ID(qd.cnum);
1562                 qd.lun = CONTAINER_TO_LUN(qd.cnum);
1563         }
1564         else return -EINVAL;
1565
1566         qd.valid = fsa_dev_ptr[qd.cnum].valid;
1567         qd.locked = fsa_dev_ptr[qd.cnum].locked;
1568         qd.deleted = fsa_dev_ptr[qd.cnum].deleted;
1569
1570         if (fsa_dev_ptr[qd.cnum].devname[0] == '\0')
1571                 qd.unmapped = 1;
1572         else
1573                 qd.unmapped = 0;
1574
1575         strlcpy(qd.name, fsa_dev_ptr[qd.cnum].devname,
1576           min(sizeof(qd.name), sizeof(fsa_dev_ptr[qd.cnum].devname) + 1));
1577
1578         if (copy_to_user(arg, &qd, sizeof (struct aac_query_disk)))
1579                 return -EFAULT;
1580         return 0;
1581 }
1582
1583 static int force_delete_disk(struct aac_dev *dev, void __user *arg)
1584 {
1585         struct aac_delete_disk dd;
1586         struct fsa_dev_info *fsa_dev_ptr;
1587
1588         fsa_dev_ptr = dev->fsa_dev;
1589
1590         if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
1591                 return -EFAULT;
1592
1593         if (dd.cnum >= dev->maximum_num_containers)
1594                 return -EINVAL;
1595         /*
1596          *      Mark this container as being deleted.
1597          */
1598         fsa_dev_ptr[dd.cnum].deleted = 1;
1599         /*
1600          *      Mark the container as no longer valid
1601          */
1602         fsa_dev_ptr[dd.cnum].valid = 0;
1603         return 0;
1604 }
1605
1606 static int delete_disk(struct aac_dev *dev, void __user *arg)
1607 {
1608         struct aac_delete_disk dd;
1609         struct fsa_dev_info *fsa_dev_ptr;
1610
1611         fsa_dev_ptr = dev->fsa_dev;
1612
1613         if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
1614                 return -EFAULT;
1615
1616         if (dd.cnum >= dev->maximum_num_containers)
1617                 return -EINVAL;
1618         /*
1619          *      If the container is locked, it can not be deleted by the API.
1620          */
1621         if (fsa_dev_ptr[dd.cnum].locked)
1622                 return -EBUSY;
1623         else {
1624                 /*
1625                  *      Mark the container as no longer being valid.
1626                  */
1627                 fsa_dev_ptr[dd.cnum].valid = 0;
1628                 fsa_dev_ptr[dd.cnum].devname[0] = '\0';
1629                 return 0;
1630         }
1631 }
1632
1633 int aac_dev_ioctl(struct aac_dev *dev, int cmd, void __user *arg)
1634 {
1635         switch (cmd) {
1636         case FSACTL_QUERY_DISK:
1637                 return query_disk(dev, arg);
1638         case FSACTL_DELETE_DISK:
1639                 return delete_disk(dev, arg);
1640         case FSACTL_FORCE_DELETE_DISK:
1641                 return force_delete_disk(dev, arg);
1642         case FSACTL_GET_CONTAINERS:
1643                 return aac_get_containers(dev);
1644         default:
1645                 return -ENOTTY;
1646         }
1647 }
1648
1649 /**
1650  *
1651  * aac_srb_callback
1652  * @context: the context set in the fib - here it is scsi cmd
1653  * @fibptr: pointer to the fib
1654  *
1655  * Handles the completion of a scsi command to a non dasd device
1656  *
1657  */
1658
1659 static void aac_srb_callback(void *context, struct fib * fibptr)
1660 {
1661         struct aac_dev *dev;
1662         struct aac_srb_reply *srbreply;
1663         struct scsi_cmnd *scsicmd;
1664
1665         scsicmd = (struct scsi_cmnd *) context;
1666         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1667
1668         if (fibptr == NULL)
1669                 BUG();
1670
1671         srbreply = (struct aac_srb_reply *) fib_data(fibptr);
1672
1673         scsicmd->sense_buffer[0] = '\0';  /* Initialize sense valid flag to false */
1674         /*
1675          *      Calculate resid for sg
1676          */
1677
1678         scsicmd->resid = scsicmd->request_bufflen -
1679                 le32_to_cpu(srbreply->data_xfer_length);
1680
1681         if(scsicmd->use_sg)
1682                 pci_unmap_sg(dev->pdev,
1683                         (struct scatterlist *)scsicmd->buffer,
1684                         scsicmd->use_sg,
1685                         scsicmd->sc_data_direction);
1686         else if(scsicmd->request_bufflen)
1687                 pci_unmap_single(dev->pdev, scsicmd->SCp.dma_handle, scsicmd->request_bufflen,
1688                         scsicmd->sc_data_direction);
1689
1690         /*
1691          * First check the fib status
1692          */
1693
1694         if (le32_to_cpu(srbreply->status) != ST_OK){
1695                 int len;
1696                 printk(KERN_WARNING "aac_srb_callback: srb failed, status = %d\n", le32_to_cpu(srbreply->status));
1697                 len = (le32_to_cpu(srbreply->sense_data_size) >
1698                                 sizeof(scsicmd->sense_buffer)) ?
1699                                 sizeof(scsicmd->sense_buffer) :
1700                                 le32_to_cpu(srbreply->sense_data_size);
1701                 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1702                 memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
1703         }
1704
1705         /*
1706          * Next check the srb status
1707          */
1708         switch( (le32_to_cpu(srbreply->srb_status))&0x3f){
1709         case SRB_STATUS_ERROR_RECOVERY:
1710         case SRB_STATUS_PENDING:
1711         case SRB_STATUS_SUCCESS:
1712                 if(scsicmd->cmnd[0] == INQUIRY ){
1713                         u8 b;
1714                         u8 b1;
1715                         /* We can't expose disk devices because we can't tell whether they
1716                          * are the raw container drives or stand alone drives.  If they have
1717                          * the removable bit set then we should expose them though.
1718                          */
1719                         b = (*(u8*)scsicmd->buffer)&0x1f;
1720                         b1 = ((u8*)scsicmd->buffer)[1];
1721                         if( b==TYPE_TAPE || b==TYPE_WORM || b==TYPE_ROM || b==TYPE_MOD|| b==TYPE_MEDIUM_CHANGER
1722                                         || (b==TYPE_DISK && (b1&0x80)) ){
1723                                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
1724                         /*
1725                          * We will allow disk devices if in RAID/SCSI mode and
1726                          * the channel is 2
1727                          */
1728                         } else if ((dev->raid_scsi_mode) &&
1729                                         (scsicmd->device->channel == 2)) {
1730                                 scsicmd->result = DID_OK << 16 |
1731                                                 COMMAND_COMPLETE << 8;
1732                         } else {
1733                                 scsicmd->result = DID_NO_CONNECT << 16 |
1734                                                 COMMAND_COMPLETE << 8;
1735                         }
1736                 } else {
1737                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
1738                 }
1739                 break;
1740         case SRB_STATUS_DATA_OVERRUN:
1741                 switch(scsicmd->cmnd[0]){
1742                 case  READ_6:
1743                 case  WRITE_6:
1744                 case  READ_10:
1745                 case  WRITE_10:
1746                 case  READ_12:
1747                 case  WRITE_12:
1748                         if(le32_to_cpu(srbreply->data_xfer_length) < scsicmd->underflow ) {
1749                                 printk(KERN_WARNING"aacraid: SCSI CMD underflow\n");
1750                         } else {
1751                                 printk(KERN_WARNING"aacraid: SCSI CMD Data Overrun\n");
1752                         }
1753                         scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
1754                         break;
1755                 case INQUIRY: {
1756                         u8 b;
1757                         u8 b1;
1758                         /* We can't expose disk devices because we can't tell whether they
1759                         * are the raw container drives or stand alone drives
1760                         */
1761                         b = (*(u8*)scsicmd->buffer)&0x0f;
1762                         b1 = ((u8*)scsicmd->buffer)[1];
1763                         if( b==TYPE_TAPE || b==TYPE_WORM || b==TYPE_ROM || b==TYPE_MOD|| b==TYPE_MEDIUM_CHANGER
1764                                         || (b==TYPE_DISK && (b1&0x80)) ){
1765                                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
1766                         /*
1767                          * We will allow disk devices if in RAID/SCSI mode and
1768                          * the channel is 2
1769                          */
1770                         } else if ((dev->raid_scsi_mode) &&
1771                                         (scsicmd->device->channel == 2)) {
1772                                 scsicmd->result = DID_OK << 16 |
1773                                                 COMMAND_COMPLETE << 8;
1774                         } else {
1775                                 scsicmd->result = DID_NO_CONNECT << 16 |
1776                                                 COMMAND_COMPLETE << 8;
1777                         }
1778                         break;
1779                 }
1780                 default:
1781                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
1782                         break;
1783                 }
1784                 break;
1785         case SRB_STATUS_ABORTED:
1786                 scsicmd->result = DID_ABORT << 16 | ABORT << 8;
1787                 break;
1788         case SRB_STATUS_ABORT_FAILED:
1789                 // Not sure about this one - but assuming the hba was trying to abort for some reason
1790                 scsicmd->result = DID_ERROR << 16 | ABORT << 8;
1791                 break;
1792         case SRB_STATUS_PARITY_ERROR:
1793                 scsicmd->result = DID_PARITY << 16 | MSG_PARITY_ERROR << 8;
1794                 break;
1795         case SRB_STATUS_NO_DEVICE:
1796         case SRB_STATUS_INVALID_PATH_ID:
1797         case SRB_STATUS_INVALID_TARGET_ID:
1798         case SRB_STATUS_INVALID_LUN:
1799         case SRB_STATUS_SELECTION_TIMEOUT:
1800                 scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8;
1801                 break;
1802
1803         case SRB_STATUS_COMMAND_TIMEOUT:
1804         case SRB_STATUS_TIMEOUT:
1805                 scsicmd->result = DID_TIME_OUT << 16 | COMMAND_COMPLETE << 8;
1806                 break;
1807
1808         case SRB_STATUS_BUSY:
1809                 scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8;
1810                 break;
1811
1812         case SRB_STATUS_BUS_RESET:
1813                 scsicmd->result = DID_RESET << 16 | COMMAND_COMPLETE << 8;
1814                 break;
1815
1816         case SRB_STATUS_MESSAGE_REJECTED:
1817                 scsicmd->result = DID_ERROR << 16 | MESSAGE_REJECT << 8;
1818                 break;
1819         case SRB_STATUS_REQUEST_FLUSHED:
1820         case SRB_STATUS_ERROR:
1821         case SRB_STATUS_INVALID_REQUEST:
1822         case SRB_STATUS_REQUEST_SENSE_FAILED:
1823         case SRB_STATUS_NO_HBA:
1824         case SRB_STATUS_UNEXPECTED_BUS_FREE:
1825         case SRB_STATUS_PHASE_SEQUENCE_FAILURE:
1826         case SRB_STATUS_BAD_SRB_BLOCK_LENGTH:
1827         case SRB_STATUS_DELAYED_RETRY:
1828         case SRB_STATUS_BAD_FUNCTION:
1829         case SRB_STATUS_NOT_STARTED:
1830         case SRB_STATUS_NOT_IN_USE:
1831         case SRB_STATUS_FORCE_ABORT:
1832         case SRB_STATUS_DOMAIN_VALIDATION_FAIL:
1833         default:
1834 #ifdef AAC_DETAILED_STATUS_INFO
1835                 printk("aacraid: SRB ERROR(%u) %s scsi cmd 0x%x - scsi status 0x%x\n",
1836                         le32_to_cpu(srbreply->srb_status) & 0x3F,
1837                         aac_get_status_string(
1838                                 le32_to_cpu(srbreply->srb_status) & 0x3F),
1839                         scsicmd->cmnd[0],
1840                         le32_to_cpu(srbreply->scsi_status));
1841 #endif
1842                 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
1843                 break;
1844         }
1845         if (le32_to_cpu(srbreply->scsi_status) == 0x02 ){  // Check Condition
1846                 int len;
1847                 scsicmd->result |= SAM_STAT_CHECK_CONDITION;
1848                 len = (le32_to_cpu(srbreply->sense_data_size) >
1849                                 sizeof(scsicmd->sense_buffer)) ?
1850                                 sizeof(scsicmd->sense_buffer) :
1851                                 le32_to_cpu(srbreply->sense_data_size);
1852 #ifdef AAC_DETAILED_STATUS_INFO
1853                 dprintk((KERN_WARNING "aac_srb_callback: check condition, status = %d len=%d\n",
1854                                         le32_to_cpu(srbreply->status), len));
1855 #endif
1856                 memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
1857
1858         }
1859         /*
1860          * OR in the scsi status (already shifted up a bit)
1861          */
1862         scsicmd->result |= le32_to_cpu(srbreply->scsi_status);
1863
1864         fib_complete(fibptr);
1865         fib_free(fibptr);
1866         aac_io_done(scsicmd);
1867 }
1868
1869 /**
1870  *
1871  * aac_send_scb_fib
1872  * @scsicmd: the scsi command block
1873  *
1874  * This routine will form a FIB and fill in the aac_srb from the
1875  * scsicmd passed in.
1876  */
1877
1878 static int aac_send_srb_fib(struct scsi_cmnd* scsicmd)
1879 {
1880         struct fib* cmd_fibcontext;
1881         struct aac_dev* dev;
1882         int status;
1883         struct aac_srb *srbcmd;
1884         u16 fibsize;
1885         u32 flag;
1886         u32 timeout;
1887
1888         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1889         if (scsicmd->device->id >= dev->maximum_num_physicals ||
1890                         scsicmd->device->lun > 7) {
1891                 scsicmd->result = DID_NO_CONNECT << 16;
1892                 scsicmd->scsi_done(scsicmd);
1893                 return 0;
1894         }
1895
1896         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1897         switch(scsicmd->sc_data_direction){
1898         case DMA_TO_DEVICE:
1899                 flag = SRB_DataOut;
1900                 break;
1901         case DMA_BIDIRECTIONAL:
1902                 flag = SRB_DataIn | SRB_DataOut;
1903                 break;
1904         case DMA_FROM_DEVICE:
1905                 flag = SRB_DataIn;
1906                 break;
1907         case DMA_NONE:
1908         default:        /* shuts up some versions of gcc */
1909                 flag = SRB_NoDataXfer;
1910                 break;
1911         }
1912
1913
1914         /*
1915          *      Allocate and initialize a Fib then setup a BlockWrite command
1916          */
1917         if (!(cmd_fibcontext = fib_alloc(dev))) {
1918                 return -1;
1919         }
1920         fib_init(cmd_fibcontext);
1921
1922         srbcmd = (struct aac_srb*) fib_data(cmd_fibcontext);
1923         srbcmd->function = cpu_to_le32(SRBF_ExecuteScsi);
1924         srbcmd->channel  = cpu_to_le32(aac_logical_to_phys(scsicmd->device->channel));
1925         srbcmd->id   = cpu_to_le32(scsicmd->device->id);
1926         srbcmd->lun      = cpu_to_le32(scsicmd->device->lun);
1927         srbcmd->flags    = cpu_to_le32(flag);
1928         timeout = scsicmd->timeout_per_command/HZ;
1929         if(timeout == 0){
1930                 timeout = 1;
1931         }
1932         srbcmd->timeout  = cpu_to_le32(timeout);  // timeout in seconds
1933         srbcmd->retry_limit = 0; /* Obsolete parameter */
1934         srbcmd->cdb_size = cpu_to_le32(scsicmd->cmd_len);
1935
1936         if( dev->dac_support == 1 ) {
1937                 aac_build_sg64(scsicmd, (struct sgmap64*) &srbcmd->sg);
1938                 srbcmd->count = cpu_to_le32(scsicmd->request_bufflen);
1939
1940                 memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
1941                 memcpy(srbcmd->cdb, scsicmd->cmnd, scsicmd->cmd_len);
1942                 /*
1943                  *      Build Scatter/Gather list
1944                  */
1945                 fibsize = sizeof (struct aac_srb) - sizeof (struct sgentry) +
1946                         ((le32_to_cpu(srbcmd->sg.count) & 0xff) *
1947                          sizeof (struct sgentry64));
1948                 BUG_ON (fibsize > (dev->max_fib_size -
1949                                         sizeof(struct aac_fibhdr)));
1950
1951                 /*
1952                  *      Now send the Fib to the adapter
1953                  */
1954                 status = fib_send(ScsiPortCommand64, cmd_fibcontext,
1955                                 fibsize, FsaNormal, 0, 1,
1956                                   (fib_callback) aac_srb_callback,
1957                                   (void *) scsicmd);
1958         } else {
1959                 aac_build_sg(scsicmd, (struct sgmap*)&srbcmd->sg);
1960                 srbcmd->count = cpu_to_le32(scsicmd->request_bufflen);
1961
1962                 memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
1963                 memcpy(srbcmd->cdb, scsicmd->cmnd, scsicmd->cmd_len);
1964                 /*
1965                  *      Build Scatter/Gather list
1966                  */
1967                 fibsize = sizeof (struct aac_srb) +
1968                         (((le32_to_cpu(srbcmd->sg.count) & 0xff) - 1) *
1969                          sizeof (struct sgentry));
1970                 BUG_ON (fibsize > (dev->max_fib_size -
1971                                         sizeof(struct aac_fibhdr)));
1972
1973                 /*
1974                  *      Now send the Fib to the adapter
1975                  */
1976                 status = fib_send(ScsiPortCommand, cmd_fibcontext, fibsize, FsaNormal, 0, 1,
1977                                   (fib_callback) aac_srb_callback, (void *) scsicmd);
1978         }
1979         /*
1980          *      Check that the command queued to the controller
1981          */
1982         if (status == -EINPROGRESS){
1983                 return 0;
1984         }
1985
1986         printk(KERN_WARNING "aac_srb: fib_send failed with status: %d\n", status);
1987         fib_complete(cmd_fibcontext);
1988         fib_free(cmd_fibcontext);
1989
1990         return -1;
1991 }
1992
1993 static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* psg)
1994 {
1995         struct aac_dev *dev;
1996         unsigned long byte_count = 0;
1997
1998         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1999         // Get rid of old data
2000         psg->count = 0;
2001         psg->sg[0].addr = 0;
2002         psg->sg[0].count = 0;
2003         if (scsicmd->use_sg) {
2004                 struct scatterlist *sg;
2005                 int i;
2006                 int sg_count;
2007                 sg = (struct scatterlist *) scsicmd->request_buffer;
2008
2009                 sg_count = pci_map_sg(dev->pdev, sg, scsicmd->use_sg,
2010                         scsicmd->sc_data_direction);
2011                 psg->count = cpu_to_le32(sg_count);
2012
2013                 byte_count = 0;
2014
2015                 for (i = 0; i < sg_count; i++) {
2016                         psg->sg[i].addr = cpu_to_le32(sg_dma_address(sg));
2017                         psg->sg[i].count = cpu_to_le32(sg_dma_len(sg));
2018                         byte_count += sg_dma_len(sg);
2019                         sg++;
2020                 }
2021                 /* hba wants the size to be exact */
2022                 if(byte_count > scsicmd->request_bufflen){
2023                         u32 temp = le32_to_cpu(psg->sg[i-1].count) -
2024                                 (byte_count - scsicmd->request_bufflen);
2025                         psg->sg[i-1].count = cpu_to_le32(temp);
2026                         byte_count = scsicmd->request_bufflen;
2027                 }
2028                 /* Check for command underflow */
2029                 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2030                         printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2031                                         byte_count, scsicmd->underflow);
2032                 }
2033         }
2034         else if(scsicmd->request_bufflen) {
2035                 dma_addr_t addr;
2036                 addr = pci_map_single(dev->pdev,
2037                                 scsicmd->request_buffer,
2038                                 scsicmd->request_bufflen,
2039                                 scsicmd->sc_data_direction);
2040                 psg->count = cpu_to_le32(1);
2041                 psg->sg[0].addr = cpu_to_le32(addr);
2042                 psg->sg[0].count = cpu_to_le32(scsicmd->request_bufflen);
2043                 scsicmd->SCp.dma_handle = addr;
2044                 byte_count = scsicmd->request_bufflen;
2045         }
2046         return byte_count;
2047 }
2048
2049
2050 static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* psg)
2051 {
2052         struct aac_dev *dev;
2053         unsigned long byte_count = 0;
2054         u64 addr;
2055
2056         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2057         // Get rid of old data
2058         psg->count = 0;
2059         psg->sg[0].addr[0] = 0;
2060         psg->sg[0].addr[1] = 0;
2061         psg->sg[0].count = 0;
2062         if (scsicmd->use_sg) {
2063                 struct scatterlist *sg;
2064                 int i;
2065                 int sg_count;
2066                 sg = (struct scatterlist *) scsicmd->request_buffer;
2067
2068                 sg_count = pci_map_sg(dev->pdev, sg, scsicmd->use_sg,
2069                         scsicmd->sc_data_direction);
2070                 psg->count = cpu_to_le32(sg_count);
2071
2072                 byte_count = 0;
2073
2074                 for (i = 0; i < sg_count; i++) {
2075                         addr = sg_dma_address(sg);
2076                         psg->sg[i].addr[0] = cpu_to_le32(addr & 0xffffffff);
2077                         psg->sg[i].addr[1] = cpu_to_le32(addr>>32);
2078                         psg->sg[i].count = cpu_to_le32(sg_dma_len(sg));
2079                         byte_count += sg_dma_len(sg);
2080                         sg++;
2081                 }
2082                 /* hba wants the size to be exact */
2083                 if(byte_count > scsicmd->request_bufflen){
2084                         u32 temp = le32_to_cpu(psg->sg[i-1].count) -
2085                                 (byte_count - scsicmd->request_bufflen);
2086                         psg->sg[i-1].count = cpu_to_le32(temp);
2087                         byte_count = scsicmd->request_bufflen;
2088                 }
2089                 /* Check for command underflow */
2090                 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2091                         printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2092                                         byte_count, scsicmd->underflow);
2093                 }
2094         }
2095         else if(scsicmd->request_bufflen) {
2096                 u64 addr;
2097                 addr = pci_map_single(dev->pdev,
2098                                 scsicmd->request_buffer,
2099                                 scsicmd->request_bufflen,
2100                                 scsicmd->sc_data_direction);
2101                 psg->count = cpu_to_le32(1);
2102                 psg->sg[0].addr[0] = cpu_to_le32(addr & 0xffffffff);
2103                 psg->sg[0].addr[1] = cpu_to_le32(addr >> 32);
2104                 psg->sg[0].count = cpu_to_le32(scsicmd->request_bufflen);
2105                 scsicmd->SCp.dma_handle = addr;
2106                 byte_count = scsicmd->request_bufflen;
2107         }
2108         return byte_count;
2109 }
2110
2111 static unsigned long aac_build_sgraw(struct scsi_cmnd* scsicmd, struct sgmapraw* psg)
2112 {
2113         struct Scsi_Host *host = scsicmd->device->host;
2114         struct aac_dev *dev = (struct aac_dev *)host->hostdata;
2115         unsigned long byte_count = 0;
2116
2117         // Get rid of old data
2118         psg->count = 0;
2119         psg->sg[0].next = 0;
2120         psg->sg[0].prev = 0;
2121         psg->sg[0].addr[0] = 0;
2122         psg->sg[0].addr[1] = 0;
2123         psg->sg[0].count = 0;
2124         psg->sg[0].flags = 0;
2125         if (scsicmd->use_sg) {
2126                 struct scatterlist *sg;
2127                 int i;
2128                 int sg_count;
2129                 sg = (struct scatterlist *) scsicmd->request_buffer;
2130
2131                 sg_count = pci_map_sg(dev->pdev, sg, scsicmd->use_sg,
2132                         scsicmd->sc_data_direction);
2133
2134                 for (i = 0; i < sg_count; i++) {
2135                         int count = sg_dma_len(sg);
2136                         u64 addr = sg_dma_address(sg);
2137                         psg->sg[i].next = 0;
2138                         psg->sg[i].prev = 0;
2139                         psg->sg[i].addr[1] = cpu_to_le32((u32)(addr>>32));
2140                         psg->sg[i].addr[0] = cpu_to_le32((u32)(addr & 0xffffffff));
2141                         psg->sg[i].count = cpu_to_le32(count);
2142                         psg->sg[i].flags = 0;
2143                         byte_count += count;
2144                         sg++;
2145                 }
2146                 psg->count = cpu_to_le32(sg_count);
2147                 /* hba wants the size to be exact */
2148                 if(byte_count > scsicmd->request_bufflen){
2149                         u32 temp = le32_to_cpu(psg->sg[i-1].count) -
2150                                 (byte_count - scsicmd->request_bufflen);
2151                         psg->sg[i-1].count = cpu_to_le32(temp);
2152                         byte_count = scsicmd->request_bufflen;
2153                 }
2154                 /* Check for command underflow */
2155                 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2156                         printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2157                                         byte_count, scsicmd->underflow);
2158                 }
2159         }
2160         else if(scsicmd->request_bufflen) {
2161                 int count;
2162                 u64 addr;
2163                 scsicmd->SCp.dma_handle = pci_map_single(dev->pdev,
2164                                 scsicmd->request_buffer,
2165                                 scsicmd->request_bufflen,
2166                                 scsicmd->sc_data_direction);
2167                 addr = scsicmd->SCp.dma_handle;
2168                 count = scsicmd->request_bufflen;
2169                 psg->count = cpu_to_le32(1);
2170                 psg->sg[0].next = 0;
2171                 psg->sg[0].prev = 0;
2172                 psg->sg[0].addr[1] = cpu_to_le32((u32)(addr>>32));
2173                 psg->sg[0].addr[0] = cpu_to_le32((u32)(addr & 0xffffffff));
2174                 psg->sg[0].count = cpu_to_le32(count);
2175                 psg->sg[0].flags = 0;
2176                 byte_count = scsicmd->request_bufflen;
2177         }
2178         return byte_count;
2179 }
2180
2181 #ifdef AAC_DETAILED_STATUS_INFO
2182
2183 struct aac_srb_status_info {
2184         u32     status;
2185         char    *str;
2186 };
2187
2188
2189 static struct aac_srb_status_info srb_status_info[] = {
2190         { SRB_STATUS_PENDING,           "Pending Status"},
2191         { SRB_STATUS_SUCCESS,           "Success"},
2192         { SRB_STATUS_ABORTED,           "Aborted Command"},
2193         { SRB_STATUS_ABORT_FAILED,      "Abort Failed"},
2194         { SRB_STATUS_ERROR,             "Error Event"},
2195         { SRB_STATUS_BUSY,              "Device Busy"},
2196         { SRB_STATUS_INVALID_REQUEST,   "Invalid Request"},
2197         { SRB_STATUS_INVALID_PATH_ID,   "Invalid Path ID"},
2198         { SRB_STATUS_NO_DEVICE,         "No Device"},
2199         { SRB_STATUS_TIMEOUT,           "Timeout"},
2200         { SRB_STATUS_SELECTION_TIMEOUT, "Selection Timeout"},
2201         { SRB_STATUS_COMMAND_TIMEOUT,   "Command Timeout"},
2202         { SRB_STATUS_MESSAGE_REJECTED,  "Message Rejected"},
2203         { SRB_STATUS_BUS_RESET,         "Bus Reset"},
2204         { SRB_STATUS_PARITY_ERROR,      "Parity Error"},
2205         { SRB_STATUS_REQUEST_SENSE_FAILED,"Request Sense Failed"},
2206         { SRB_STATUS_NO_HBA,            "No HBA"},
2207         { SRB_STATUS_DATA_OVERRUN,      "Data Overrun/Data Underrun"},
2208         { SRB_STATUS_UNEXPECTED_BUS_FREE,"Unexpected Bus Free"},
2209         { SRB_STATUS_PHASE_SEQUENCE_FAILURE,"Phase Error"},
2210         { SRB_STATUS_BAD_SRB_BLOCK_LENGTH,"Bad Srb Block Length"},
2211         { SRB_STATUS_REQUEST_FLUSHED,   "Request Flushed"},
2212         { SRB_STATUS_DELAYED_RETRY,     "Delayed Retry"},
2213         { SRB_STATUS_INVALID_LUN,       "Invalid LUN"},
2214         { SRB_STATUS_INVALID_TARGET_ID, "Invalid TARGET ID"},
2215         { SRB_STATUS_BAD_FUNCTION,      "Bad Function"},
2216         { SRB_STATUS_ERROR_RECOVERY,    "Error Recovery"},
2217         { SRB_STATUS_NOT_STARTED,       "Not Started"},
2218         { SRB_STATUS_NOT_IN_USE,        "Not In Use"},
2219         { SRB_STATUS_FORCE_ABORT,       "Force Abort"},
2220         { SRB_STATUS_DOMAIN_VALIDATION_FAIL,"Domain Validation Failure"},
2221         { 0xff,                         "Unknown Error"}
2222 };
2223
2224 char *aac_get_status_string(u32 status)
2225 {
2226         int i;
2227
2228         for(i=0; i < (sizeof(srb_status_info)/sizeof(struct aac_srb_status_info)); i++ ){
2229                 if(srb_status_info[i].status == status){
2230                         return srb_status_info[i].str;
2231                 }
2232         }
2233
2234         return "Bad Status Code";
2235 }
2236
2237 #endif