err.no Git - linux-2.6/blob - 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(struct aac_dev *dev, void *data, int tindex)
 575 {
 576         struct scsi_inq *str;
 577
 578         str = (struct scsi_inq *)(data); /* cast data to scsi inq block */
 579         memset(str, ' ', sizeof(*str));
 580
 581         if (dev->supplement_adapter_info.AdapterTypeText[0]) {
 582                 char * cp = dev->supplement_adapter_info.AdapterTypeText;
 583                 int c = sizeof(str->vid);
 584                 while (*cp && *cp != ' ' && --c)
 585                         ++cp;
 586                 c = *cp;
 587                 *cp = '\0';
 588                 inqstrcpy (dev->supplement_adapter_info.AdapterTypeText,
 589                   str->vid);
 590                 *cp = c;
 591                 while (*cp && *cp != ' ')
 592                         ++cp;
 593                 while (*cp == ' ')
 594                         ++cp;
 595                 /* last six chars reserved for vol type */
 596                 c = 0;
 597                 if (strlen(cp) > sizeof(str->pid)) {
 598                         c = cp[sizeof(str->pid)];
 599                         cp[sizeof(str->pid)] = '\0';
 600                 }
 601                 inqstrcpy (cp, str->pid);
 602                 if (c)
 603                         cp[sizeof(str->pid)] = c;
 604         } else {
 605                 struct aac_driver_ident *mp = aac_get_driver_ident(dev->cardtype);
 606
 607                 inqstrcpy (mp->vname, str->vid);
 608                 /* last six chars reserved for vol type */
 609                 inqstrcpy (mp->model, str->pid);
 610         }
 611
 612         if (tindex < (sizeof(container_types)/sizeof(char *))){
 613                 char *findit = str->pid;
 614
 615                 for ( ; *findit != ' '; findit++); /* walk till we find a space */
 616                 /* RAID is superfluous in the context of a RAID device */
 617                 if (memcmp(findit-4, "RAID", 4) == 0)
 618                         *(findit -= 4) = ' ';
 619                 if (((findit - str->pid) + strlen(container_types[tindex]))
 620                  < (sizeof(str->pid) + sizeof(str->prl)))
 621                         inqstrcpy (container_types[tindex], findit + 1);
 622         }
 623         inqstrcpy ("V1.0", str->prl);
 624 }
 625
 626 static void set_sense(u8 *sense_buf, u8 sense_key, u8 sense_code,
 627                       u8 a_sense_code, u8 incorrect_length,
 628                       u8 bit_pointer, u16 field_pointer,
 629                       u32 residue)
 630 {
 631         sense_buf[0] = 0xF0;    /* Sense data valid, err code 70h (current error) */
 632         sense_buf[1] = 0;       /* Segment number, always zero */
 633
 634         if (incorrect_length) {
 635                 sense_buf[2] = sense_key | 0x20;/* Set ILI bit | sense key */
 636                 sense_buf[3] = BYTE3(residue);
 637                 sense_buf[4] = BYTE2(residue);
 638                 sense_buf[5] = BYTE1(residue);
 639                 sense_buf[6] = BYTE0(residue);
 640         } else
 641                 sense_buf[2] = sense_key;       /* Sense key */
 642
 643         if (sense_key == ILLEGAL_REQUEST)
 644                 sense_buf[7] = 10;      /* Additional sense length */
 645         else
 646                 sense_buf[7] = 6;       /* Additional sense length */
 647
 648         sense_buf[12] = sense_code;     /* Additional sense code */
 649         sense_buf[13] = a_sense_code;   /* Additional sense code qualifier */
 650         if (sense_key == ILLEGAL_REQUEST) {
 651                 sense_buf[15] = 0;
 652
 653                 if (sense_code == SENCODE_INVALID_PARAM_FIELD)
 654                         sense_buf[15] = 0x80;/* Std sense key specific field */
 655                 /* Illegal parameter is in the parameter block */
 656
 657                 if (sense_code == SENCODE_INVALID_CDB_FIELD)
 658                         sense_buf[15] = 0xc0;/* Std sense key specific field */
 659                 /* Illegal parameter is in the CDB block */
 660                 sense_buf[15] |= bit_pointer;
 661                 sense_buf[16] = field_pointer >> 8;     /* MSB */
 662                 sense_buf[17] = field_pointer;          /* LSB */
 663         }
 664 }
 665
 666 int aac_get_adapter_info(struct aac_dev* dev)
 667 {
 668         struct fib* fibptr;
 669         int rcode;
 670         u32 tmp;
 671         struct aac_adapter_info *info;
 672         struct aac_bus_info *command;
 673         struct aac_bus_info_response *bus_info;
 674
 675         if (!(fibptr = fib_alloc(dev)))
 676                 return -ENOMEM;
 677
 678         fib_init(fibptr);
 679         info = (struct aac_adapter_info *) fib_data(fibptr);
 680         memset(info,0,sizeof(*info));
 681
 682         rcode = fib_send(RequestAdapterInfo,
 683                          fibptr,
 684                          sizeof(*info),
 685                          FsaNormal,
 686                          1, 1,
 687                          NULL,
 688                          NULL);
 689
 690         if (rcode < 0) {
 691                 fib_complete(fibptr);
 692                 fib_free(fibptr);
 693                 return rcode;
 694         }
 695         memcpy(&dev->adapter_info, info, sizeof(*info));
 696
 697         if (dev->adapter_info.options & AAC_OPT_SUPPLEMENT_ADAPTER_INFO) {
 698                 struct aac_supplement_adapter_info * info;
 699
 700                 fib_init(fibptr);
 701
 702                 info = (struct aac_supplement_adapter_info *) fib_data(fibptr);
 703
 704                 memset(info,0,sizeof(*info));
 705
 706                 rcode = fib_send(RequestSupplementAdapterInfo,
 707                                  fibptr,
 708                                  sizeof(*info),
 709                                  FsaNormal,
 710                                  1, 1,
 711                                  NULL,
 712                                  NULL);
 713
 714                 if (rcode >= 0)
 715                         memcpy(&dev->supplement_adapter_info, info, sizeof(*info));
 716         }
 717
 718
 719         /*
 720          * GetBusInfo
 721          */
 722
 723         fib_init(fibptr);
 724
 725         bus_info = (struct aac_bus_info_response *) fib_data(fibptr);
 726
 727         memset(bus_info, 0, sizeof(*bus_info));
 728
 729         command = (struct aac_bus_info *)bus_info;
 730
 731         command->Command = cpu_to_le32(VM_Ioctl);
 732         command->ObjType = cpu_to_le32(FT_DRIVE);
 733         command->MethodId = cpu_to_le32(1);
 734         command->CtlCmd = cpu_to_le32(GetBusInfo);
 735
 736         rcode = fib_send(ContainerCommand,
 737                          fibptr,
 738                          sizeof (*bus_info),
 739                          FsaNormal,
 740                          1, 1,
 741                          NULL, NULL);
 742
 743         if (rcode >= 0 && le32_to_cpu(bus_info->Status) == ST_OK) {
 744                 dev->maximum_num_physicals = le32_to_cpu(bus_info->TargetsPerBus);
 745                 dev->maximum_num_channels = le32_to_cpu(bus_info->BusCount);
 746         }
 747
 748         tmp = le32_to_cpu(dev->adapter_info.kernelrev);
 749         printk(KERN_INFO "%s%d: kernel %d.%d-%d[%d] %.*s\n",
 750                         dev->name,
 751                         dev->id,
 752                         tmp>>24,
 753                         (tmp>>16)&0xff,
 754                         tmp&0xff,
 755                         le32_to_cpu(dev->adapter_info.kernelbuild),
 756                         (int)sizeof(dev->supplement_adapter_info.BuildDate),
 757                         dev->supplement_adapter_info.BuildDate);
 758         tmp = le32_to_cpu(dev->adapter_info.monitorrev);
 759         printk(KERN_INFO "%s%d: monitor %d.%d-%d[%d]\n",
 760                         dev->name, dev->id,
 761                         tmp>>24,(tmp>>16)&0xff,tmp&0xff,
 762                         le32_to_cpu(dev->adapter_info.monitorbuild));
 763         tmp = le32_to_cpu(dev->adapter_info.biosrev);
 764         printk(KERN_INFO "%s%d: bios %d.%d-%d[%d]\n",
 765                         dev->name, dev->id,
 766                         tmp>>24,(tmp>>16)&0xff,tmp&0xff,
 767                         le32_to_cpu(dev->adapter_info.biosbuild));
 768         if (le32_to_cpu(dev->adapter_info.serial[0]) != 0xBAD0)
 769                 printk(KERN_INFO "%s%d: serial %x\n",
 770                         dev->name, dev->id,
 771                         le32_to_cpu(dev->adapter_info.serial[0]));
 772
 773         dev->nondasd_support = 0;
 774         dev->raid_scsi_mode = 0;
 775         if(dev->adapter_info.options & AAC_OPT_NONDASD){
 776                 dev->nondasd_support = 1;
 777         }
 778
 779         /*
 780          * If the firmware supports ROMB RAID/SCSI mode and we are currently
 781          * in RAID/SCSI mode, set the flag. For now if in this mode we will
 782          * force nondasd support on. If we decide to allow the non-dasd flag
 783          * additional changes changes will have to be made to support
 784          * RAID/SCSI.  the function aac_scsi_cmd in this module will have to be
 785          * changed to support the new dev->raid_scsi_mode flag instead of
 786          * leaching off of the dev->nondasd_support flag. Also in linit.c the
 787          * function aac_detect will have to be modified where it sets up the
 788          * max number of channels based on the aac->nondasd_support flag only.
 789          */
 790         if ((dev->adapter_info.options & AAC_OPT_SCSI_MANAGED) &&
 791             (dev->adapter_info.options & AAC_OPT_RAID_SCSI_MODE)) {
 792                 dev->nondasd_support = 1;
 793                 dev->raid_scsi_mode = 1;
 794         }
 795         if (dev->raid_scsi_mode != 0)
 796                 printk(KERN_INFO "%s%d: ROMB RAID/SCSI mode enabled\n",
 797                                 dev->name, dev->id);
 798
 799         if(nondasd != -1) {
 800                 dev->nondasd_support = (nondasd!=0);
 801         }
 802         if(dev->nondasd_support != 0){
 803                 printk(KERN_INFO "%s%d: Non-DASD support enabled.\n",dev->name, dev->id);
 804         }
 805
 806         dev->dac_support = 0;
 807         if( (sizeof(dma_addr_t) > 4) && (dev->adapter_info.options & AAC_OPT_SGMAP_HOST64)){
 808                 printk(KERN_INFO "%s%d: 64bit support enabled.\n", dev->name, dev->id);
 809                 dev->dac_support = 1;
 810         }
 811
 812         if(dacmode != -1) {
 813                 dev->dac_support = (dacmode!=0);
 814         }
 815         if(dev->dac_support != 0) {
 816                 if (!pci_set_dma_mask(dev->pdev, DMA_64BIT_MASK) &&
 817                         !pci_set_consistent_dma_mask(dev->pdev, DMA_64BIT_MASK)) {
 818                         printk(KERN_INFO"%s%d: 64 Bit DAC enabled\n",
 819                                 dev->name, dev->id);
 820                 } else if (!pci_set_dma_mask(dev->pdev, DMA_32BIT_MASK) &&
 821                         !pci_set_consistent_dma_mask(dev->pdev, DMA_32BIT_MASK)) {
 822                         printk(KERN_INFO"%s%d: DMA mask set failed, 64 Bit DAC disabled\n",
 823                                 dev->name, dev->id);
 824                         dev->dac_support = 0;
 825                 } else {
 826                         printk(KERN_WARNING"%s%d: No suitable DMA available.\n",
 827                                 dev->name, dev->id);
 828                         rcode = -ENOMEM;
 829                 }
 830         }
 831         /*
 832          * 57 scatter gather elements
 833          */
 834         if (!(dev->raw_io_interface)) {
 835                 dev->scsi_host_ptr->sg_tablesize = (dev->max_fib_size -
 836                         sizeof(struct aac_fibhdr) -
 837                         sizeof(struct aac_write) + sizeof(struct sgmap)) /
 838                                 sizeof(struct sgmap);
 839                 if (dev->dac_support) {
 840                         /*
 841                          * 38 scatter gather elements
 842                          */
 843                         dev->scsi_host_ptr->sg_tablesize =
 844                                 (dev->max_fib_size -
 845                                 sizeof(struct aac_fibhdr) -
 846                                 sizeof(struct aac_write64) +
 847                                 sizeof(struct sgmap64)) /
 848                                         sizeof(struct sgmap64);
 849                 }
 850                 dev->scsi_host_ptr->max_sectors = AAC_MAX_32BIT_SGBCOUNT;
 851                 if(!(dev->adapter_info.options & AAC_OPT_NEW_COMM)) {
 852                         /*
 853                          * Worst case size that could cause sg overflow when
 854                          * we break up SG elements that are larger than 64KB.
 855                          * Would be nice if we could tell the SCSI layer what
 856                          * the maximum SG element size can be. Worst case is
 857                          * (sg_tablesize-1) 4KB elements with one 64KB
 858                          * element.
 859                          *      32bit -> 468 or 238KB   64bit -> 424 or 212KB
 860                          */
 861                         dev->scsi_host_ptr->max_sectors =
 862                           (dev->scsi_host_ptr->sg_tablesize * 8) + 112;
 863                 }
 864         }
 865
 866         fib_complete(fibptr);
 867         fib_free(fibptr);
 868
 869         return rcode;
 870 }
 871
 872
 873 static void io_callback(void *context, struct fib * fibptr)
 874 {
 875         struct aac_dev *dev;
 876         struct aac_read_reply *readreply;
 877         struct scsi_cmnd *scsicmd;
 878         u32 cid;
 879
 880         scsicmd = (struct scsi_cmnd *) context;
 881
 882         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
 883         cid = ID_LUN_TO_CONTAINER(scsicmd->device->id, scsicmd->device->lun);
 884
 885         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));
 886
 887         if (fibptr == NULL)
 888                 BUG();
 889
 890         if(scsicmd->use_sg)
 891                 pci_unmap_sg(dev->pdev,
 892                         (struct scatterlist *)scsicmd->buffer,
 893                         scsicmd->use_sg,
 894                         scsicmd->sc_data_direction);
 895         else if(scsicmd->request_bufflen)
 896                 pci_unmap_single(dev->pdev, scsicmd->SCp.dma_handle,
 897                                  scsicmd->request_bufflen,
 898                                  scsicmd->sc_data_direction);
 899         readreply = (struct aac_read_reply *)fib_data(fibptr);
 900         if (le32_to_cpu(readreply->status) == ST_OK)
 901                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
 902         else {
 903 #ifdef AAC_DETAILED_STATUS_INFO
 904                 printk(KERN_WARNING "io_callback: io failed, status = %d\n",
 905                   le32_to_cpu(readreply->status));
 906 #endif
 907                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
 908                 set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
 909                                     HARDWARE_ERROR,
 910                                     SENCODE_INTERNAL_TARGET_FAILURE,
 911                                     ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
 912                                     0, 0);
 913                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
 914                   (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
 915                     ? sizeof(scsicmd->sense_buffer)
 916                     : sizeof(dev->fsa_dev[cid].sense_data));
 917         }
 918         fib_complete(fibptr);
 919         fib_free(fibptr);
 920
 921         aac_io_done(scsicmd);
 922 }
 923
 924 static int aac_read(struct scsi_cmnd * scsicmd, int cid)
 925 {
 926         u32 lba;
 927         u32 count;
 928         int status;
 929
 930         u16 fibsize;
 931         struct aac_dev *dev;
 932         struct fib * cmd_fibcontext;
 933
 934         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
 935         /*
 936          *      Get block address and transfer length
 937          */
 938         if (scsicmd->cmnd[0] == READ_6) /* 6 byte command */
 939         {
 940                 dprintk((KERN_DEBUG "aachba: received a read(6) command on id %d.\n", cid));
 941
 942                 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
 943                 count = scsicmd->cmnd[4];
 944
 945                 if (count == 0)
 946                         count = 256;
 947         } else {
 948                 dprintk((KERN_DEBUG "aachba: received a read(10) command on id %d.\n", cid));
 949
 950                 lba = (scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
 951                 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
 952         }
 953         dprintk((KERN_DEBUG "aac_read[cpu %d]: lba = %u, t = %ld.\n",
 954           smp_processor_id(), (unsigned long long)lba, jiffies));
 955         /*
 956          *      Alocate and initialize a Fib
 957          */
 958         if (!(cmd_fibcontext = fib_alloc(dev))) {
 959                 return -1;
 960         }
 961
 962         fib_init(cmd_fibcontext);
 963
 964         if (dev->raw_io_interface) {
 965                 struct aac_raw_io *readcmd;
 966                 readcmd = (struct aac_raw_io *) fib_data(cmd_fibcontext);
 967                 readcmd->block[0] = cpu_to_le32(lba);
 968                 readcmd->block[1] = 0;
 969                 readcmd->count = cpu_to_le32(count<<9);
 970                 readcmd->cid = cpu_to_le16(cid);
 971                 readcmd->flags = cpu_to_le16(1);
 972                 readcmd->bpTotal = 0;
 973                 readcmd->bpComplete = 0;
 974
 975                 aac_build_sgraw(scsicmd, &readcmd->sg);
 976                 fibsize = sizeof(struct aac_raw_io) + ((le32_to_cpu(readcmd->sg.count) - 1) * sizeof (struct sgentryraw));
 977                 if (fibsize > (dev->max_fib_size - sizeof(struct aac_fibhdr)))
 978                         BUG();
 979                 /*
 980                  *      Now send the Fib to the adapter
 981                  */
 982                 status = fib_send(ContainerRawIo,
 983                           cmd_fibcontext,
 984                           fibsize,
 985                           FsaNormal,
 986                           0, 1,
 987                           (fib_callback) io_callback,
 988                           (void *) scsicmd);
 989         } else if (dev->dac_support == 1) {
 990                 struct aac_read64 *readcmd;
 991                 readcmd = (struct aac_read64 *) fib_data(cmd_fibcontext);
 992                 readcmd->command = cpu_to_le32(VM_CtHostRead64);
 993                 readcmd->cid = cpu_to_le16(cid);
 994                 readcmd->sector_count = cpu_to_le16(count);
 995                 readcmd->block = cpu_to_le32(lba);
 996                 readcmd->pad   = 0;
 997                 readcmd->flags = 0;
 998
 999                 aac_build_sg64(scsicmd, &readcmd->sg);
1000                 fibsize = sizeof(struct aac_read64) +
1001                         ((le32_to_cpu(readcmd->sg.count) - 1) *
1002                          sizeof (struct sgentry64));
1003                 BUG_ON (fibsize > (dev->max_fib_size -
1004                                         sizeof(struct aac_fibhdr)));
1005                 /*
1006                  *      Now send the Fib to the adapter
1007                  */
1008                 status = fib_send(ContainerCommand64,
1009                           cmd_fibcontext,
1010                           fibsize,
1011                           FsaNormal,
1012                           0, 1,
1013                           (fib_callback) io_callback,
1014                           (void *) scsicmd);
1015         } else {
1016                 struct aac_read *readcmd;
1017                 readcmd = (struct aac_read *) fib_data(cmd_fibcontext);
1018                 readcmd->command = cpu_to_le32(VM_CtBlockRead);
1019                 readcmd->cid = cpu_to_le32(cid);
1020                 readcmd->block = cpu_to_le32(lba);
1021                 readcmd->count = cpu_to_le32(count * 512);
1022
1023                 aac_build_sg(scsicmd, &readcmd->sg);
1024                 fibsize = sizeof(struct aac_read) +
1025                         ((le32_to_cpu(readcmd->sg.count) - 1) *
1026                          sizeof (struct sgentry));
1027                 BUG_ON (fibsize > (dev->max_fib_size -
1028                                         sizeof(struct aac_fibhdr)));
1029                 /*
1030                  *      Now send the Fib to the adapter
1031                  */
1032                 status = fib_send(ContainerCommand,
1033                           cmd_fibcontext,
1034                           fibsize,
1035                           FsaNormal,
1036                           0, 1,
1037                           (fib_callback) io_callback,
1038                           (void *) scsicmd);
1039         }
1040
1041
1042
1043         /*
1044          *      Check that the command queued to the controller
1045          */
1046         if (status == -EINPROGRESS)
1047                 return 0;
1048
1049         printk(KERN_WARNING "aac_read: fib_send failed with status: %d.\n", status);
1050         /*
1051          *      For some reason, the Fib didn't queue, return QUEUE_FULL
1052          */
1053         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_TASK_SET_FULL;
1054         aac_io_done(scsicmd);
1055         fib_complete(cmd_fibcontext);
1056         fib_free(cmd_fibcontext);
1057         return 0;
1058 }
1059
1060 static int aac_write(struct scsi_cmnd * scsicmd, int cid)
1061 {
1062         u32 lba;
1063         u32 count;
1064         int status;
1065         u16 fibsize;
1066         struct aac_dev *dev;
1067         struct fib * cmd_fibcontext;
1068
1069         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1070         /*
1071          *      Get block address and transfer length
1072          */
1073         if (scsicmd->cmnd[0] == WRITE_6)        /* 6 byte command */
1074         {
1075                 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
1076                 count = scsicmd->cmnd[4];
1077                 if (count == 0)
1078                         count = 256;
1079         } else {
1080                 dprintk((KERN_DEBUG "aachba: received a write(10) command on id %d.\n", cid));
1081                 lba = (scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1082                 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
1083         }
1084         dprintk((KERN_DEBUG "aac_write[cpu %d]: lba = %u, t = %ld.\n",
1085           smp_processor_id(), (unsigned long long)lba, jiffies));
1086         /*
1087          *      Allocate and initialize a Fib then setup a BlockWrite command
1088          */
1089         if (!(cmd_fibcontext = fib_alloc(dev))) {
1090                 scsicmd->result = DID_ERROR << 16;
1091                 aac_io_done(scsicmd);
1092                 return 0;
1093         }
1094         fib_init(cmd_fibcontext);
1095
1096         if (dev->raw_io_interface) {
1097                 struct aac_raw_io *writecmd;
1098                 writecmd = (struct aac_raw_io *) fib_data(cmd_fibcontext);
1099                 writecmd->block[0] = cpu_to_le32(lba);
1100                 writecmd->block[1] = 0;
1101                 writecmd->count = cpu_to_le32(count<<9);
1102                 writecmd->cid = cpu_to_le16(cid);
1103                 writecmd->flags = 0;
1104                 writecmd->bpTotal = 0;
1105                 writecmd->bpComplete = 0;
1106
1107                 aac_build_sgraw(scsicmd, &writecmd->sg);
1108                 fibsize = sizeof(struct aac_raw_io) + ((le32_to_cpu(writecmd->sg.count) - 1) * sizeof (struct sgentryraw));
1109                 if (fibsize > (dev->max_fib_size - sizeof(struct aac_fibhdr)))
1110                         BUG();
1111                 /*
1112                  *      Now send the Fib to the adapter
1113                  */
1114                 status = fib_send(ContainerRawIo,
1115                           cmd_fibcontext,
1116                           fibsize,
1117                           FsaNormal,
1118                           0, 1,
1119                           (fib_callback) io_callback,
1120                           (void *) scsicmd);
1121         } else if (dev->dac_support == 1) {
1122                 struct aac_write64 *writecmd;
1123                 writecmd = (struct aac_write64 *) fib_data(cmd_fibcontext);
1124                 writecmd->command = cpu_to_le32(VM_CtHostWrite64);
1125                 writecmd->cid = cpu_to_le16(cid);
1126                 writecmd->sector_count = cpu_to_le16(count);
1127                 writecmd->block = cpu_to_le32(lba);
1128                 writecmd->pad   = 0;
1129                 writecmd->flags = 0;
1130
1131                 aac_build_sg64(scsicmd, &writecmd->sg);
1132                 fibsize = sizeof(struct aac_write64) +
1133                         ((le32_to_cpu(writecmd->sg.count) - 1) *
1134                          sizeof (struct sgentry64));
1135                 BUG_ON (fibsize > (dev->max_fib_size -
1136                                         sizeof(struct aac_fibhdr)));
1137                 /*
1138                  *      Now send the Fib to the adapter
1139                  */
1140                 status = fib_send(ContainerCommand64,
1141                           cmd_fibcontext,
1142                           fibsize,
1143                           FsaNormal,
1144                           0, 1,
1145                           (fib_callback) io_callback,
1146                           (void *) scsicmd);
1147         } else {
1148                 struct aac_write *writecmd;
1149                 writecmd = (struct aac_write *) fib_data(cmd_fibcontext);
1150                 writecmd->command = cpu_to_le32(VM_CtBlockWrite);
1151                 writecmd->cid = cpu_to_le32(cid);
1152                 writecmd->block = cpu_to_le32(lba);
1153                 writecmd->count = cpu_to_le32(count * 512);
1154                 writecmd->sg.count = cpu_to_le32(1);
1155                 /* ->stable is not used - it did mean which type of write */
1156
1157                 aac_build_sg(scsicmd, &writecmd->sg);
1158                 fibsize = sizeof(struct aac_write) +
1159                         ((le32_to_cpu(writecmd->sg.count) - 1) *
1160                          sizeof (struct sgentry));
1161                 BUG_ON (fibsize > (dev->max_fib_size -
1162                                         sizeof(struct aac_fibhdr)));
1163                 /*
1164                  *      Now send the Fib to the adapter
1165                  */
1166                 status = fib_send(ContainerCommand,
1167                           cmd_fibcontext,
1168                           fibsize,
1169                           FsaNormal,
1170                           0, 1,
1171                           (fib_callback) io_callback,
1172                           (void *) scsicmd);
1173         }
1174
1175         /*
1176          *      Check that the command queued to the controller
1177          */
1178         if (status == -EINPROGRESS)
1179         {
1180                 return 0;
1181         }
1182
1183         printk(KERN_WARNING "aac_write: fib_send failed with status: %d\n", status);
1184         /*
1185          *      For some reason, the Fib didn't queue, return QUEUE_FULL
1186          */
1187         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_TASK_SET_FULL;
1188         aac_io_done(scsicmd);
1189
1190         fib_complete(cmd_fibcontext);
1191         fib_free(cmd_fibcontext);
1192         return 0;
1193 }
1194
1195 static void synchronize_callback(void *context, struct fib *fibptr)
1196 {
1197         struct aac_synchronize_reply *synchronizereply;
1198         struct scsi_cmnd *cmd;
1199
1200         cmd = context;
1201
1202         dprintk((KERN_DEBUG "synchronize_callback[cpu %d]: t = %ld.\n",
1203                                 smp_processor_id(), jiffies));
1204         BUG_ON(fibptr == NULL);
1205
1206
1207         synchronizereply = fib_data(fibptr);
1208         if (le32_to_cpu(synchronizereply->status) == CT_OK)
1209                 cmd->result = DID_OK << 16 |
1210                         COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1211         else {
1212                 struct scsi_device *sdev = cmd->device;
1213                 struct aac_dev *dev = (struct aac_dev *)sdev->host->hostdata;
1214                 u32 cid = ID_LUN_TO_CONTAINER(sdev->id, sdev->lun);
1215                 printk(KERN_WARNING
1216                      "synchronize_callback: synchronize failed, status = %d\n",
1217                      le32_to_cpu(synchronizereply->status));
1218                 cmd->result = DID_OK << 16 |
1219                         COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1220                 set_sense((u8 *)&dev->fsa_dev[cid].sense_data,
1221                                     HARDWARE_ERROR,
1222                                     SENCODE_INTERNAL_TARGET_FAILURE,
1223                                     ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
1224                                     0, 0);
1225                 memcpy(cmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1226                   min(sizeof(dev->fsa_dev[cid].sense_data),
1227                           sizeof(cmd->sense_buffer)));
1228         }
1229
1230         fib_complete(fibptr);
1231         fib_free(fibptr);
1232         aac_io_done(cmd);
1233 }
1234
1235 static int aac_synchronize(struct scsi_cmnd *scsicmd, int cid)
1236 {
1237         int status;
1238         struct fib *cmd_fibcontext;
1239         struct aac_synchronize *synchronizecmd;
1240         struct scsi_cmnd *cmd;
1241         struct scsi_device *sdev = scsicmd->device;
1242         int active = 0;
1243         unsigned long flags;
1244
1245         /*
1246          * Wait for all commands to complete to this specific
1247          * target (block).
1248          */
1249         spin_lock_irqsave(&sdev->list_lock, flags);
1250         list_for_each_entry(cmd, &sdev->cmd_list, list)
1251                 if (cmd != scsicmd && cmd->serial_number != 0) {
1252                         ++active;
1253                         break;
1254                 }
1255
1256         spin_unlock_irqrestore(&sdev->list_lock, flags);
1257
1258         /*
1259          *      Yield the processor (requeue for later)
1260          */
1261         if (active)
1262                 return SCSI_MLQUEUE_DEVICE_BUSY;
1263
1264         /*
1265          *      Allocate and initialize a Fib
1266          */
1267         if (!(cmd_fibcontext =
1268             fib_alloc((struct aac_dev *)scsicmd->device->host->hostdata)))
1269                 return SCSI_MLQUEUE_HOST_BUSY;
1270
1271         fib_init(cmd_fibcontext);
1272
1273         synchronizecmd = fib_data(cmd_fibcontext);
1274         synchronizecmd->command = cpu_to_le32(VM_ContainerConfig);
1275         synchronizecmd->type = cpu_to_le32(CT_FLUSH_CACHE);
1276         synchronizecmd->cid = cpu_to_le32(cid);
1277         synchronizecmd->count =
1278              cpu_to_le32(sizeof(((struct aac_synchronize_reply *)NULL)->data));
1279
1280         /*
1281          *      Now send the Fib to the adapter
1282          */
1283         status = fib_send(ContainerCommand,
1284                   cmd_fibcontext,
1285                   sizeof(struct aac_synchronize),
1286                   FsaNormal,
1287                   0, 1,
1288                   (fib_callback)synchronize_callback,
1289                   (void *)scsicmd);
1290
1291         /*
1292          *      Check that the command queued to the controller
1293          */
1294         if (status == -EINPROGRESS)
1295                 return 0;
1296
1297         printk(KERN_WARNING
1298                 "aac_synchronize: fib_send failed with status: %d.\n", status);
1299         fib_complete(cmd_fibcontext);
1300         fib_free(cmd_fibcontext);
1301         return SCSI_MLQUEUE_HOST_BUSY;
1302 }
1303
1304 /**
1305  *      aac_scsi_cmd()          -       Process SCSI command
1306  *      @scsicmd:               SCSI command block
1307  *
1308  *      Emulate a SCSI command and queue the required request for the
1309  *      aacraid firmware.
1310  */
1311
1312 int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
1313 {
1314         u32 cid = 0;
1315         struct Scsi_Host *host = scsicmd->device->host;
1316         struct aac_dev *dev = (struct aac_dev *)host->hostdata;
1317         struct fsa_dev_info *fsa_dev_ptr = dev->fsa_dev;
1318         int ret;
1319
1320         /*
1321          *      If the bus, id or lun is out of range, return fail
1322          *      Test does not apply to ID 16, the pseudo id for the controller
1323          *      itself.
1324          */
1325         if (scsicmd->device->id != host->this_id) {
1326                 if ((scsicmd->device->channel == 0) ){
1327                         if( (scsicmd->device->id >= dev->maximum_num_containers) || (scsicmd->device->lun != 0)){
1328                                 scsicmd->result = DID_NO_CONNECT << 16;
1329                                 scsicmd->scsi_done(scsicmd);
1330                                 return 0;
1331                         }
1332                         cid = ID_LUN_TO_CONTAINER(scsicmd->device->id, scsicmd->device->lun);
1333
1334                         /*
1335                          *      If the target container doesn't exist, it may have
1336                          *      been newly created
1337                          */
1338                         if ((fsa_dev_ptr[cid].valid & 1) == 0) {
1339                                 switch (scsicmd->cmnd[0]) {
1340                                 case INQUIRY:
1341                                 case READ_CAPACITY:
1342                                 case TEST_UNIT_READY:
1343                                         spin_unlock_irq(host->host_lock);
1344                                         probe_container(dev, cid);
1345                                         spin_lock_irq(host->host_lock);
1346                                         if (fsa_dev_ptr[cid].valid == 0) {
1347                                                 scsicmd->result = DID_NO_CONNECT << 16;
1348                                                 scsicmd->scsi_done(scsicmd);
1349                                                 return 0;
1350                                         }
1351                                 default:
1352                                         break;
1353                                 }
1354                         }
1355                         /*
1356                          *      If the target container still doesn't exist,
1357                          *      return failure
1358                          */
1359                         if (fsa_dev_ptr[cid].valid == 0) {
1360                                 scsicmd->result = DID_BAD_TARGET << 16;
1361                                 scsicmd->scsi_done(scsicmd);
1362                                 return 0;
1363                         }
1364                 } else {  /* check for physical non-dasd devices */
1365                         if(dev->nondasd_support == 1){
1366                                 return aac_send_srb_fib(scsicmd);
1367                         } else {
1368                                 scsicmd->result = DID_NO_CONNECT << 16;
1369                                 scsicmd->scsi_done(scsicmd);
1370                                 return 0;
1371                         }
1372                 }
1373         }
1374         /*
1375          * else Command for the controller itself
1376          */
1377         else if ((scsicmd->cmnd[0] != INQUIRY) &&       /* only INQUIRY & TUR cmnd supported for controller */
1378                 (scsicmd->cmnd[0] != TEST_UNIT_READY))
1379         {
1380                 dprintk((KERN_WARNING "Only INQUIRY & TUR command supported for controller, rcvd = 0x%x.\n", scsicmd->cmnd[0]));
1381                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1382                 set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
1383                             ILLEGAL_REQUEST,
1384                             SENCODE_INVALID_COMMAND,
1385                             ASENCODE_INVALID_COMMAND, 0, 0, 0, 0);
1386                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1387                   (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
1388                     ? sizeof(scsicmd->sense_buffer)
1389                     : sizeof(dev->fsa_dev[cid].sense_data));
1390                 scsicmd->scsi_done(scsicmd);
1391                 return 0;
1392         }
1393
1394
1395         /* Handle commands here that don't really require going out to the adapter */
1396         switch (scsicmd->cmnd[0]) {
1397         case INQUIRY:
1398         {
1399                 struct inquiry_data inq_data;
1400
1401                 dprintk((KERN_DEBUG "INQUIRY command, ID: %d.\n", scsicmd->device->id));
1402                 memset(&inq_data, 0, sizeof (struct inquiry_data));
1403
1404                 inq_data.inqd_ver = 2;  /* claim compliance to SCSI-2 */
1405                 inq_data.inqd_dtq = 0x80;       /* set RMB bit to one indicating that the medium is removable */
1406                 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 */
1407                 inq_data.inqd_len = 31;
1408                 /*Format for "pad2" is  RelAdr | WBus32 | WBus16 |  Sync  | Linked |Reserved| CmdQue | SftRe */
1409                 inq_data.inqd_pad2= 0x32 ;       /*WBus16|Sync|CmdQue */
1410                 /*
1411                  *      Set the Vendor, Product, and Revision Level
1412                  *      see: <vendor>.c i.e. aac.c
1413                  */
1414                 if (scsicmd->device->id == host->this_id) {
1415                         setinqstr(dev, (void *) (inq_data.inqd_vid), (sizeof(container_types)/sizeof(char *)));
1416                         inq_data.inqd_pdt = INQD_PDT_PROC;      /* Processor device */
1417                         aac_internal_transfer(scsicmd, &inq_data, 0, sizeof(inq_data));
1418                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1419                         scsicmd->scsi_done(scsicmd);
1420                         return 0;
1421                 }
1422                 setinqstr(dev, (void *) (inq_data.inqd_vid), fsa_dev_ptr[cid].type);
1423                 inq_data.inqd_pdt = INQD_PDT_DA;        /* Direct/random access device */
1424                 aac_internal_transfer(scsicmd, &inq_data, 0, sizeof(inq_data));
1425                 return aac_get_container_name(scsicmd, cid);
1426         }
1427         case READ_CAPACITY:
1428         {
1429                 u32 capacity;
1430                 char cp[8];
1431
1432                 dprintk((KERN_DEBUG "READ CAPACITY command.\n"));
1433                 if (fsa_dev_ptr[cid].size <= 0x100000000LL)
1434                         capacity = fsa_dev_ptr[cid].size - 1;
1435                 else
1436                         capacity = (u32)-1;
1437
1438                 cp[0] = (capacity >> 24) & 0xff;
1439                 cp[1] = (capacity >> 16) & 0xff;
1440                 cp[2] = (capacity >> 8) & 0xff;
1441                 cp[3] = (capacity >> 0) & 0xff;
1442                 cp[4] = 0;
1443                 cp[5] = 0;
1444                 cp[6] = 2;
1445                 cp[7] = 0;
1446                 aac_internal_transfer(scsicmd, cp, 0, sizeof(cp));
1447
1448                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1449                 scsicmd->scsi_done(scsicmd);
1450
1451                 return 0;
1452         }
1453
1454         case MODE_SENSE:
1455         {
1456                 char mode_buf[4];
1457
1458                 dprintk((KERN_DEBUG "MODE SENSE command.\n"));
1459                 mode_buf[0] = 3;        /* Mode data length */
1460                 mode_buf[1] = 0;        /* Medium type - default */
1461                 mode_buf[2] = 0;        /* Device-specific param, bit 8: 0/1 = write enabled/protected */
1462                 mode_buf[3] = 0;        /* Block descriptor length */
1463
1464                 aac_internal_transfer(scsicmd, mode_buf, 0, sizeof(mode_buf));
1465                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1466                 scsicmd->scsi_done(scsicmd);
1467
1468                 return 0;
1469         }
1470         case MODE_SENSE_10:
1471         {
1472                 char mode_buf[8];
1473
1474                 dprintk((KERN_DEBUG "MODE SENSE 10 byte command.\n"));
1475                 mode_buf[0] = 0;        /* Mode data length (MSB) */
1476                 mode_buf[1] = 6;        /* Mode data length (LSB) */
1477                 mode_buf[2] = 0;        /* Medium type - default */
1478                 mode_buf[3] = 0;        /* Device-specific param, bit 8: 0/1 = write enabled/protected */
1479                 mode_buf[4] = 0;        /* reserved */
1480                 mode_buf[5] = 0;        /* reserved */
1481                 mode_buf[6] = 0;        /* Block descriptor length (MSB) */
1482                 mode_buf[7] = 0;        /* Block descriptor length (LSB) */
1483                 aac_internal_transfer(scsicmd, mode_buf, 0, sizeof(mode_buf));
1484
1485                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1486                 scsicmd->scsi_done(scsicmd);
1487
1488                 return 0;
1489         }
1490         case REQUEST_SENSE:
1491                 dprintk((KERN_DEBUG "REQUEST SENSE command.\n"));
1492                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data, sizeof (struct sense_data));
1493                 memset(&dev->fsa_dev[cid].sense_data, 0, sizeof (struct sense_data));
1494                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1495                 scsicmd->scsi_done(scsicmd);
1496                 return 0;
1497
1498         case ALLOW_MEDIUM_REMOVAL:
1499                 dprintk((KERN_DEBUG "LOCK command.\n"));
1500                 if (scsicmd->cmnd[4])
1501                         fsa_dev_ptr[cid].locked = 1;
1502                 else
1503                         fsa_dev_ptr[cid].locked = 0;
1504
1505                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1506                 scsicmd->scsi_done(scsicmd);
1507                 return 0;
1508         /*
1509          *      These commands are all No-Ops
1510          */
1511         case TEST_UNIT_READY:
1512         case RESERVE:
1513         case RELEASE:
1514         case REZERO_UNIT:
1515         case REASSIGN_BLOCKS:
1516         case SEEK_10:
1517         case START_STOP:
1518                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1519                 scsicmd->scsi_done(scsicmd);
1520                 return 0;
1521         }
1522
1523         switch (scsicmd->cmnd[0])
1524         {
1525                 case READ_6:
1526                 case READ_10:
1527                         /*
1528                          *      Hack to keep track of ordinal number of the device that
1529                          *      corresponds to a container. Needed to convert
1530                          *      containers to /dev/sd device names
1531                          */
1532
1533                         spin_unlock_irq(host->host_lock);
1534                         if  (scsicmd->request->rq_disk)
1535                                 memcpy(fsa_dev_ptr[cid].devname,
1536                                         scsicmd->request->rq_disk->disk_name,
1537                                         8);
1538
1539                         ret = aac_read(scsicmd, cid);
1540                         spin_lock_irq(host->host_lock);
1541                         return ret;
1542
1543                 case WRITE_6:
1544                 case WRITE_10:
1545                         spin_unlock_irq(host->host_lock);
1546                         ret = aac_write(scsicmd, cid);
1547                         spin_lock_irq(host->host_lock);
1548                         return ret;
1549
1550                 case SYNCHRONIZE_CACHE:
1551                         /* Issue FIB to tell Firmware to flush it's cache */
1552                         return aac_synchronize(scsicmd, cid);
1553
1554                 default:
1555                         /*
1556                          *      Unhandled commands
1557                          */
1558                         dprintk((KERN_WARNING "Unhandled SCSI Command: 0x%x.\n", scsicmd->cmnd[0]));
1559                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1560                         set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
1561                                 ILLEGAL_REQUEST, SENCODE_INVALID_COMMAND,
1562                                 ASENCODE_INVALID_COMMAND, 0, 0, 0, 0);
1563                         memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1564                           (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
1565                             ? sizeof(scsicmd->sense_buffer)
1566                             : sizeof(dev->fsa_dev[cid].sense_data));
1567                         scsicmd->scsi_done(scsicmd);
1568                         return 0;
1569         }
1570 }
1571
1572 static int query_disk(struct aac_dev *dev, void __user *arg)
1573 {
1574         struct aac_query_disk qd;
1575         struct fsa_dev_info *fsa_dev_ptr;
1576
1577         fsa_dev_ptr = dev->fsa_dev;
1578         if (copy_from_user(&qd, arg, sizeof (struct aac_query_disk)))
1579                 return -EFAULT;
1580         if (qd.cnum == -1)
1581                 qd.cnum = ID_LUN_TO_CONTAINER(qd.id, qd.lun);
1582         else if ((qd.bus == -1) && (qd.id == -1) && (qd.lun == -1))
1583         {
1584                 if (qd.cnum < 0 || qd.cnum >= dev->maximum_num_containers)
1585                         return -EINVAL;
1586                 qd.instance = dev->scsi_host_ptr->host_no;
1587                 qd.bus = 0;
1588                 qd.id = CONTAINER_TO_ID(qd.cnum);
1589                 qd.lun = CONTAINER_TO_LUN(qd.cnum);
1590         }
1591         else return -EINVAL;
1592
1593         qd.valid = fsa_dev_ptr[qd.cnum].valid;
1594         qd.locked = fsa_dev_ptr[qd.cnum].locked;
1595         qd.deleted = fsa_dev_ptr[qd.cnum].deleted;
1596
1597         if (fsa_dev_ptr[qd.cnum].devname[0] == '\0')
1598                 qd.unmapped = 1;
1599         else
1600                 qd.unmapped = 0;
1601
1602         strlcpy(qd.name, fsa_dev_ptr[qd.cnum].devname,
1603           min(sizeof(qd.name), sizeof(fsa_dev_ptr[qd.cnum].devname) + 1));
1604
1605         if (copy_to_user(arg, &qd, sizeof (struct aac_query_disk)))
1606                 return -EFAULT;
1607         return 0;
1608 }
1609
1610 static int force_delete_disk(struct aac_dev *dev, void __user *arg)
1611 {
1612         struct aac_delete_disk dd;
1613         struct fsa_dev_info *fsa_dev_ptr;
1614
1615         fsa_dev_ptr = dev->fsa_dev;
1616
1617         if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
1618                 return -EFAULT;
1619
1620         if (dd.cnum >= dev->maximum_num_containers)
1621                 return -EINVAL;
1622         /*
1623          *      Mark this container as being deleted.
1624          */
1625         fsa_dev_ptr[dd.cnum].deleted = 1;
1626         /*
1627          *      Mark the container as no longer valid
1628          */
1629         fsa_dev_ptr[dd.cnum].valid = 0;
1630         return 0;
1631 }
1632
1633 static int delete_disk(struct aac_dev *dev, void __user *arg)
1634 {
1635         struct aac_delete_disk dd;
1636         struct fsa_dev_info *fsa_dev_ptr;
1637
1638         fsa_dev_ptr = dev->fsa_dev;
1639
1640         if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
1641                 return -EFAULT;
1642
1643         if (dd.cnum >= dev->maximum_num_containers)
1644                 return -EINVAL;
1645         /*
1646          *      If the container is locked, it can not be deleted by the API.
1647          */
1648         if (fsa_dev_ptr[dd.cnum].locked)
1649                 return -EBUSY;
1650         else {
1651                 /*
1652                  *      Mark the container as no longer being valid.
1653                  */
1654                 fsa_dev_ptr[dd.cnum].valid = 0;
1655                 fsa_dev_ptr[dd.cnum].devname[0] = '\0';
1656                 return 0;
1657         }
1658 }
1659
1660 int aac_dev_ioctl(struct aac_dev *dev, int cmd, void __user *arg)
1661 {
1662         switch (cmd) {
1663         case FSACTL_QUERY_DISK:
1664                 return query_disk(dev, arg);
1665         case FSACTL_DELETE_DISK:
1666                 return delete_disk(dev, arg);
1667         case FSACTL_FORCE_DELETE_DISK:
1668                 return force_delete_disk(dev, arg);
1669         case FSACTL_GET_CONTAINERS:
1670                 return aac_get_containers(dev);
1671         default:
1672                 return -ENOTTY;
1673         }
1674 }
1675
1676 /**
1677  *
1678  * aac_srb_callback
1679  * @context: the context set in the fib - here it is scsi cmd
1680  * @fibptr: pointer to the fib
1681  *
1682  * Handles the completion of a scsi command to a non dasd device
1683  *
1684  */
1685
1686 static void aac_srb_callback(void *context, struct fib * fibptr)
1687 {
1688         struct aac_dev *dev;
1689         struct aac_srb_reply *srbreply;
1690         struct scsi_cmnd *scsicmd;
1691
1692         scsicmd = (struct scsi_cmnd *) context;
1693         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1694
1695         if (fibptr == NULL)
1696                 BUG();
1697
1698         srbreply = (struct aac_srb_reply *) fib_data(fibptr);
1699
1700         scsicmd->sense_buffer[0] = '\0';  /* Initialize sense valid flag to false */
1701         /*
1702          *      Calculate resid for sg
1703          */
1704
1705         scsicmd->resid = scsicmd->request_bufflen -
1706                 le32_to_cpu(srbreply->data_xfer_length);
1707
1708         if(scsicmd->use_sg)
1709                 pci_unmap_sg(dev->pdev,
1710                         (struct scatterlist *)scsicmd->buffer,
1711                         scsicmd->use_sg,
1712                         scsicmd->sc_data_direction);
1713         else if(scsicmd->request_bufflen)
1714                 pci_unmap_single(dev->pdev, scsicmd->SCp.dma_handle, scsicmd->request_bufflen,
1715                         scsicmd->sc_data_direction);
1716
1717         /*
1718          * First check the fib status
1719          */
1720
1721         if (le32_to_cpu(srbreply->status) != ST_OK){
1722                 int len;
1723                 printk(KERN_WARNING "aac_srb_callback: srb failed, status = %d\n", le32_to_cpu(srbreply->status));
1724                 len = (le32_to_cpu(srbreply->sense_data_size) >
1725                                 sizeof(scsicmd->sense_buffer)) ?
1726                                 sizeof(scsicmd->sense_buffer) :
1727                                 le32_to_cpu(srbreply->sense_data_size);
1728                 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1729                 memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
1730         }
1731
1732         /*
1733          * Next check the srb status
1734          */
1735         switch( (le32_to_cpu(srbreply->srb_status))&0x3f){
1736         case SRB_STATUS_ERROR_RECOVERY:
1737         case SRB_STATUS_PENDING:
1738         case SRB_STATUS_SUCCESS:
1739                 if(scsicmd->cmnd[0] == INQUIRY ){
1740                         u8 b;
1741                         u8 b1;
1742                         /* We can't expose disk devices because we can't tell whether they
1743                          * are the raw container drives or stand alone drives.  If they have
1744                          * the removable bit set then we should expose them though.
1745                          */
1746                         b = (*(u8*)scsicmd->buffer)&0x1f;
1747                         b1 = ((u8*)scsicmd->buffer)[1];
1748                         if( b==TYPE_TAPE || b==TYPE_WORM || b==TYPE_ROM || b==TYPE_MOD|| b==TYPE_MEDIUM_CHANGER
1749                                         || (b==TYPE_DISK && (b1&0x80)) ){
1750                                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
1751                         /*
1752                          * We will allow disk devices if in RAID/SCSI mode and
1753                          * the channel is 2
1754                          */
1755                         } else if ((dev->raid_scsi_mode) &&
1756                                         (scsicmd->device->channel == 2)) {
1757                                 scsicmd->result = DID_OK << 16 |
1758                                                 COMMAND_COMPLETE << 8;
1759                         } else {
1760                                 scsicmd->result = DID_NO_CONNECT << 16 |
1761                                                 COMMAND_COMPLETE << 8;
1762                         }
1763                 } else {
1764                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
1765                 }
1766                 break;
1767         case SRB_STATUS_DATA_OVERRUN:
1768                 switch(scsicmd->cmnd[0]){
1769                 case  READ_6:
1770                 case  WRITE_6:
1771                 case  READ_10:
1772                 case  WRITE_10:
1773                 case  READ_12:
1774                 case  WRITE_12:
1775                         if(le32_to_cpu(srbreply->data_xfer_length) < scsicmd->underflow ) {
1776                                 printk(KERN_WARNING"aacraid: SCSI CMD underflow\n");
1777                         } else {
1778                                 printk(KERN_WARNING"aacraid: SCSI CMD Data Overrun\n");
1779                         }
1780                         scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
1781                         break;
1782                 case INQUIRY: {
1783                         u8 b;
1784                         u8 b1;
1785                         /* We can't expose disk devices because we can't tell whether they
1786                         * are the raw container drives or stand alone drives
1787                         */
1788                         b = (*(u8*)scsicmd->buffer)&0x0f;
1789                         b1 = ((u8*)scsicmd->buffer)[1];
1790                         if( b==TYPE_TAPE || b==TYPE_WORM || b==TYPE_ROM || b==TYPE_MOD|| b==TYPE_MEDIUM_CHANGER
1791                                         || (b==TYPE_DISK && (b1&0x80)) ){
1792                                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
1793                         /*
1794                          * We will allow disk devices if in RAID/SCSI mode and
1795                          * the channel is 2
1796                          */
1797                         } else if ((dev->raid_scsi_mode) &&
1798                                         (scsicmd->device->channel == 2)) {
1799                                 scsicmd->result = DID_OK << 16 |
1800                                                 COMMAND_COMPLETE << 8;
1801                         } else {
1802                                 scsicmd->result = DID_NO_CONNECT << 16 |
1803                                                 COMMAND_COMPLETE << 8;
1804                         }
1805                         break;
1806                 }
1807                 default:
1808                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
1809                         break;
1810                 }
1811                 break;
1812         case SRB_STATUS_ABORTED:
1813                 scsicmd->result = DID_ABORT << 16 | ABORT << 8;
1814                 break;
1815         case SRB_STATUS_ABORT_FAILED:
1816                 // Not sure about this one - but assuming the hba was trying to abort for some reason
1817                 scsicmd->result = DID_ERROR << 16 | ABORT << 8;
1818                 break;
1819         case SRB_STATUS_PARITY_ERROR:
1820                 scsicmd->result = DID_PARITY << 16 | MSG_PARITY_ERROR << 8;
1821                 break;
1822         case SRB_STATUS_NO_DEVICE:
1823         case SRB_STATUS_INVALID_PATH_ID:
1824         case SRB_STATUS_INVALID_TARGET_ID:
1825         case SRB_STATUS_INVALID_LUN:
1826         case SRB_STATUS_SELECTION_TIMEOUT:
1827                 scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8;
1828                 break;
1829
1830         case SRB_STATUS_COMMAND_TIMEOUT:
1831         case SRB_STATUS_TIMEOUT:
1832                 scsicmd->result = DID_TIME_OUT << 16 | COMMAND_COMPLETE << 8;
1833                 break;
1834
1835         case SRB_STATUS_BUSY:
1836                 scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8;
1837                 break;
1838
1839         case SRB_STATUS_BUS_RESET:
1840                 scsicmd->result = DID_RESET << 16 | COMMAND_COMPLETE << 8;
1841                 break;
1842
1843         case SRB_STATUS_MESSAGE_REJECTED:
1844                 scsicmd->result = DID_ERROR << 16 | MESSAGE_REJECT << 8;
1845                 break;
1846         case SRB_STATUS_REQUEST_FLUSHED:
1847         case SRB_STATUS_ERROR:
1848         case SRB_STATUS_INVALID_REQUEST:
1849         case SRB_STATUS_REQUEST_SENSE_FAILED:
1850         case SRB_STATUS_NO_HBA:
1851         case SRB_STATUS_UNEXPECTED_BUS_FREE:
1852         case SRB_STATUS_PHASE_SEQUENCE_FAILURE:
1853         case SRB_STATUS_BAD_SRB_BLOCK_LENGTH:
1854         case SRB_STATUS_DELAYED_RETRY:
1855         case SRB_STATUS_BAD_FUNCTION:
1856         case SRB_STATUS_NOT_STARTED:
1857         case SRB_STATUS_NOT_IN_USE:
1858         case SRB_STATUS_FORCE_ABORT:
1859         case SRB_STATUS_DOMAIN_VALIDATION_FAIL:
1860         default:
1861 #ifdef AAC_DETAILED_STATUS_INFO
1862                 printk("aacraid: SRB ERROR(%u) %s scsi cmd 0x%x - scsi status 0x%x\n",
1863                         le32_to_cpu(srbreply->srb_status) & 0x3F,
1864                         aac_get_status_string(
1865                                 le32_to_cpu(srbreply->srb_status) & 0x3F),
1866                         scsicmd->cmnd[0],
1867                         le32_to_cpu(srbreply->scsi_status));
1868 #endif
1869                 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
1870                 break;
1871         }
1872         if (le32_to_cpu(srbreply->scsi_status) == 0x02 ){  // Check Condition
1873                 int len;
1874                 scsicmd->result |= SAM_STAT_CHECK_CONDITION;
1875                 len = (le32_to_cpu(srbreply->sense_data_size) >
1876                                 sizeof(scsicmd->sense_buffer)) ?
1877                                 sizeof(scsicmd->sense_buffer) :
1878                                 le32_to_cpu(srbreply->sense_data_size);
1879 #ifdef AAC_DETAILED_STATUS_INFO
1880                 dprintk((KERN_WARNING "aac_srb_callback: check condition, status = %d len=%d\n",
1881                                         le32_to_cpu(srbreply->status), len));
1882 #endif
1883                 memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
1884
1885         }
1886         /*
1887          * OR in the scsi status (already shifted up a bit)
1888          */
1889         scsicmd->result |= le32_to_cpu(srbreply->scsi_status);
1890
1891         fib_complete(fibptr);
1892         fib_free(fibptr);
1893         aac_io_done(scsicmd);
1894 }
1895
1896 /**
1897  *
1898  * aac_send_scb_fib
1899  * @scsicmd: the scsi command block
1900  *
1901  * This routine will form a FIB and fill in the aac_srb from the
1902  * scsicmd passed in.
1903  */
1904
1905 static int aac_send_srb_fib(struct scsi_cmnd* scsicmd)
1906 {
1907         struct fib* cmd_fibcontext;
1908         struct aac_dev* dev;
1909         int status;
1910         struct aac_srb *srbcmd;
1911         u16 fibsize;
1912         u32 flag;
1913         u32 timeout;
1914
1915         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1916         if (scsicmd->device->id >= dev->maximum_num_physicals ||
1917                         scsicmd->device->lun > 7) {
1918                 scsicmd->result = DID_NO_CONNECT << 16;
1919                 scsicmd->scsi_done(scsicmd);
1920                 return 0;
1921         }
1922
1923         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1924         switch(scsicmd->sc_data_direction){
1925         case DMA_TO_DEVICE:
1926                 flag = SRB_DataOut;
1927                 break;
1928         case DMA_BIDIRECTIONAL:
1929                 flag = SRB_DataIn | SRB_DataOut;
1930                 break;
1931         case DMA_FROM_DEVICE:
1932                 flag = SRB_DataIn;
1933                 break;
1934         case DMA_NONE:
1935         default:        /* shuts up some versions of gcc */
1936                 flag = SRB_NoDataXfer;
1937                 break;
1938         }
1939
1940
1941         /*
1942          *      Allocate and initialize a Fib then setup a BlockWrite command
1943          */
1944         if (!(cmd_fibcontext = fib_alloc(dev))) {
1945                 return -1;
1946         }
1947         fib_init(cmd_fibcontext);
1948
1949         srbcmd = (struct aac_srb*) fib_data(cmd_fibcontext);
1950         srbcmd->function = cpu_to_le32(SRBF_ExecuteScsi);
1951         srbcmd->channel  = cpu_to_le32(aac_logical_to_phys(scsicmd->device->channel));
1952         srbcmd->id   = cpu_to_le32(scsicmd->device->id);
1953         srbcmd->lun      = cpu_to_le32(scsicmd->device->lun);
1954         srbcmd->flags    = cpu_to_le32(flag);
1955         timeout = scsicmd->timeout_per_command/HZ;
1956         if(timeout == 0){
1957                 timeout = 1;
1958         }
1959         srbcmd->timeout  = cpu_to_le32(timeout);  // timeout in seconds
1960         srbcmd->retry_limit = 0; /* Obsolete parameter */
1961         srbcmd->cdb_size = cpu_to_le32(scsicmd->cmd_len);
1962
1963         if( dev->dac_support == 1 ) {
1964                 aac_build_sg64(scsicmd, (struct sgmap64*) &srbcmd->sg);
1965                 srbcmd->count = cpu_to_le32(scsicmd->request_bufflen);
1966
1967                 memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
1968                 memcpy(srbcmd->cdb, scsicmd->cmnd, scsicmd->cmd_len);
1969                 /*
1970                  *      Build Scatter/Gather list
1971                  */
1972                 fibsize = sizeof (struct aac_srb) - sizeof (struct sgentry) +
1973                         ((le32_to_cpu(srbcmd->sg.count) & 0xff) *
1974                          sizeof (struct sgentry64));
1975                 BUG_ON (fibsize > (dev->max_fib_size -
1976                                         sizeof(struct aac_fibhdr)));
1977
1978                 /*
1979                  *      Now send the Fib to the adapter
1980                  */
1981                 status = fib_send(ScsiPortCommand64, cmd_fibcontext,
1982                                 fibsize, FsaNormal, 0, 1,
1983                                   (fib_callback) aac_srb_callback,
1984                                   (void *) scsicmd);
1985         } else {
1986                 aac_build_sg(scsicmd, (struct sgmap*)&srbcmd->sg);
1987                 srbcmd->count = cpu_to_le32(scsicmd->request_bufflen);
1988
1989                 memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
1990                 memcpy(srbcmd->cdb, scsicmd->cmnd, scsicmd->cmd_len);
1991                 /*
1992                  *      Build Scatter/Gather list
1993                  */
1994                 fibsize = sizeof (struct aac_srb) +
1995                         (((le32_to_cpu(srbcmd->sg.count) & 0xff) - 1) *
1996                          sizeof (struct sgentry));
1997                 BUG_ON (fibsize > (dev->max_fib_size -
1998                                         sizeof(struct aac_fibhdr)));
1999
2000                 /*
2001                  *      Now send the Fib to the adapter
2002                  */
2003                 status = fib_send(ScsiPortCommand, cmd_fibcontext, fibsize, FsaNormal, 0, 1,
2004                                   (fib_callback) aac_srb_callback, (void *) scsicmd);
2005         }
2006         /*
2007          *      Check that the command queued to the controller
2008          */
2009         if (status == -EINPROGRESS){
2010                 return 0;
2011         }
2012
2013         printk(KERN_WARNING "aac_srb: fib_send failed with status: %d\n", status);
2014         fib_complete(cmd_fibcontext);
2015         fib_free(cmd_fibcontext);
2016
2017         return -1;
2018 }
2019
2020 static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* psg)
2021 {
2022         struct aac_dev *dev;
2023         unsigned long byte_count = 0;
2024
2025         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2026         // Get rid of old data
2027         psg->count = 0;
2028         psg->sg[0].addr = 0;
2029         psg->sg[0].count = 0;
2030         if (scsicmd->use_sg) {
2031                 struct scatterlist *sg;
2032                 int i;
2033                 int sg_count;
2034                 sg = (struct scatterlist *) scsicmd->request_buffer;
2035
2036                 sg_count = pci_map_sg(dev->pdev, sg, scsicmd->use_sg,
2037                         scsicmd->sc_data_direction);
2038                 psg->count = cpu_to_le32(sg_count);
2039
2040                 byte_count = 0;
2041
2042                 for (i = 0; i < sg_count; i++) {
2043                         psg->sg[i].addr = cpu_to_le32(sg_dma_address(sg));
2044                         psg->sg[i].count = cpu_to_le32(sg_dma_len(sg));
2045                         byte_count += sg_dma_len(sg);
2046                         sg++;
2047                 }
2048                 /* hba wants the size to be exact */
2049                 if(byte_count > scsicmd->request_bufflen){
2050                         u32 temp = le32_to_cpu(psg->sg[i-1].count) -
2051                                 (byte_count - scsicmd->request_bufflen);
2052                         psg->sg[i-1].count = cpu_to_le32(temp);
2053                         byte_count = scsicmd->request_bufflen;
2054                 }
2055                 /* Check for command underflow */
2056                 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2057                         printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2058                                         byte_count, scsicmd->underflow);
2059                 }
2060         }
2061         else if(scsicmd->request_bufflen) {
2062                 dma_addr_t addr;
2063                 addr = pci_map_single(dev->pdev,
2064                                 scsicmd->request_buffer,
2065                                 scsicmd->request_bufflen,
2066                                 scsicmd->sc_data_direction);
2067                 psg->count = cpu_to_le32(1);
2068                 psg->sg[0].addr = cpu_to_le32(addr);
2069                 psg->sg[0].count = cpu_to_le32(scsicmd->request_bufflen);
2070                 scsicmd->SCp.dma_handle = addr;
2071                 byte_count = scsicmd->request_bufflen;
2072         }
2073         return byte_count;
2074 }
2075
2076
2077 static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* psg)
2078 {
2079         struct aac_dev *dev;
2080         unsigned long byte_count = 0;
2081         u64 addr;
2082
2083         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2084         // Get rid of old data
2085         psg->count = 0;
2086         psg->sg[0].addr[0] = 0;
2087         psg->sg[0].addr[1] = 0;
2088         psg->sg[0].count = 0;
2089         if (scsicmd->use_sg) {
2090                 struct scatterlist *sg;
2091                 int i;
2092                 int sg_count;
2093                 sg = (struct scatterlist *) scsicmd->request_buffer;
2094
2095                 sg_count = pci_map_sg(dev->pdev, sg, scsicmd->use_sg,
2096                         scsicmd->sc_data_direction);
2097                 psg->count = cpu_to_le32(sg_count);
2098
2099                 byte_count = 0;
2100
2101                 for (i = 0; i < sg_count; i++) {
2102                         addr = sg_dma_address(sg);
2103                         psg->sg[i].addr[0] = cpu_to_le32(addr & 0xffffffff);
2104                         psg->sg[i].addr[1] = cpu_to_le32(addr>>32);
2105                         psg->sg[i].count = cpu_to_le32(sg_dma_len(sg));
2106                         byte_count += sg_dma_len(sg);
2107                         sg++;
2108                 }
2109                 /* hba wants the size to be exact */
2110                 if(byte_count > scsicmd->request_bufflen){
2111                         u32 temp = le32_to_cpu(psg->sg[i-1].count) -
2112                                 (byte_count - scsicmd->request_bufflen);
2113                         psg->sg[i-1].count = cpu_to_le32(temp);
2114                         byte_count = scsicmd->request_bufflen;
2115                 }
2116                 /* Check for command underflow */
2117                 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2118                         printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2119                                         byte_count, scsicmd->underflow);
2120                 }
2121         }
2122         else if(scsicmd->request_bufflen) {
2123                 u64 addr;
2124                 addr = pci_map_single(dev->pdev,
2125                                 scsicmd->request_buffer,
2126                                 scsicmd->request_bufflen,
2127                                 scsicmd->sc_data_direction);
2128                 psg->count = cpu_to_le32(1);
2129                 psg->sg[0].addr[0] = cpu_to_le32(addr & 0xffffffff);
2130                 psg->sg[0].addr[1] = cpu_to_le32(addr >> 32);
2131                 psg->sg[0].count = cpu_to_le32(scsicmd->request_bufflen);
2132                 scsicmd->SCp.dma_handle = addr;
2133                 byte_count = scsicmd->request_bufflen;
2134         }
2135         return byte_count;
2136 }
2137
2138 static unsigned long aac_build_sgraw(struct scsi_cmnd* scsicmd, struct sgmapraw* psg)
2139 {
2140         struct Scsi_Host *host = scsicmd->device->host;
2141         struct aac_dev *dev = (struct aac_dev *)host->hostdata;
2142         unsigned long byte_count = 0;
2143
2144         // Get rid of old data
2145         psg->count = 0;
2146         psg->sg[0].next = 0;
2147         psg->sg[0].prev = 0;
2148         psg->sg[0].addr[0] = 0;
2149         psg->sg[0].addr[1] = 0;
2150         psg->sg[0].count = 0;
2151         psg->sg[0].flags = 0;
2152         if (scsicmd->use_sg) {
2153                 struct scatterlist *sg;
2154                 int i;
2155                 int sg_count;
2156                 sg = (struct scatterlist *) scsicmd->request_buffer;
2157
2158                 sg_count = pci_map_sg(dev->pdev, sg, scsicmd->use_sg,
2159                         scsicmd->sc_data_direction);
2160
2161                 for (i = 0; i < sg_count; i++) {
2162                         int count = sg_dma_len(sg);
2163                         u64 addr = sg_dma_address(sg);
2164                         psg->sg[i].next = 0;
2165                         psg->sg[i].prev = 0;
2166                         psg->sg[i].addr[1] = cpu_to_le32((u32)(addr>>32));
2167                         psg->sg[i].addr[0] = cpu_to_le32((u32)(addr & 0xffffffff));
2168                         psg->sg[i].count = cpu_to_le32(count);
2169                         psg->sg[i].flags = 0;
2170                         byte_count += count;
2171                         sg++;
2172                 }
2173                 psg->count = cpu_to_le32(sg_count);
2174                 /* hba wants the size to be exact */
2175                 if(byte_count > scsicmd->request_bufflen){
2176                         u32 temp = le32_to_cpu(psg->sg[i-1].count) -
2177                                 (byte_count - scsicmd->request_bufflen);
2178                         psg->sg[i-1].count = cpu_to_le32(temp);
2179                         byte_count = scsicmd->request_bufflen;
2180                 }
2181                 /* Check for command underflow */
2182                 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2183                         printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2184                                         byte_count, scsicmd->underflow);
2185                 }
2186         }
2187         else if(scsicmd->request_bufflen) {
2188                 int count;
2189                 u64 addr;
2190                 scsicmd->SCp.dma_handle = pci_map_single(dev->pdev,
2191                                 scsicmd->request_buffer,
2192                                 scsicmd->request_bufflen,
2193                                 scsicmd->sc_data_direction);
2194                 addr = scsicmd->SCp.dma_handle;
2195                 count = scsicmd->request_bufflen;
2196                 psg->count = cpu_to_le32(1);
2197                 psg->sg[0].next = 0;
2198                 psg->sg[0].prev = 0;
2199                 psg->sg[0].addr[1] = cpu_to_le32((u32)(addr>>32));
2200                 psg->sg[0].addr[0] = cpu_to_le32((u32)(addr & 0xffffffff));
2201                 psg->sg[0].count = cpu_to_le32(count);
2202                 psg->sg[0].flags = 0;
2203                 byte_count = scsicmd->request_bufflen;
2204         }
2205         return byte_count;
2206 }
2207
2208 #ifdef AAC_DETAILED_STATUS_INFO
2209
2210 struct aac_srb_status_info {
2211         u32     status;
2212         char    *str;
2213 };
2214
2215
2216 static struct aac_srb_status_info srb_status_info[] = {
2217         { SRB_STATUS_PENDING,           "Pending Status"},
2218         { SRB_STATUS_SUCCESS,           "Success"},
2219         { SRB_STATUS_ABORTED,           "Aborted Command"},
2220         { SRB_STATUS_ABORT_FAILED,      "Abort Failed"},
2221         { SRB_STATUS_ERROR,             "Error Event"},
2222         { SRB_STATUS_BUSY,              "Device Busy"},
2223         { SRB_STATUS_INVALID_REQUEST,   "Invalid Request"},
2224         { SRB_STATUS_INVALID_PATH_ID,   "Invalid Path ID"},
2225         { SRB_STATUS_NO_DEVICE,         "No Device"},
2226         { SRB_STATUS_TIMEOUT,           "Timeout"},
2227         { SRB_STATUS_SELECTION_TIMEOUT, "Selection Timeout"},
2228         { SRB_STATUS_COMMAND_TIMEOUT,   "Command Timeout"},
2229         { SRB_STATUS_MESSAGE_REJECTED,  "Message Rejected"},
2230         { SRB_STATUS_BUS_RESET,         "Bus Reset"},
2231         { SRB_STATUS_PARITY_ERROR,      "Parity Error"},
2232         { SRB_STATUS_REQUEST_SENSE_FAILED,"Request Sense Failed"},
2233         { SRB_STATUS_NO_HBA,            "No HBA"},
2234         { SRB_STATUS_DATA_OVERRUN,      "Data Overrun/Data Underrun"},
2235         { SRB_STATUS_UNEXPECTED_BUS_FREE,"Unexpected Bus Free"},
2236         { SRB_STATUS_PHASE_SEQUENCE_FAILURE,"Phase Error"},
2237         { SRB_STATUS_BAD_SRB_BLOCK_LENGTH,"Bad Srb Block Length"},
2238         { SRB_STATUS_REQUEST_FLUSHED,   "Request Flushed"},
2239         { SRB_STATUS_DELAYED_RETRY,     "Delayed Retry"},
2240         { SRB_STATUS_INVALID_LUN,       "Invalid LUN"},
2241         { SRB_STATUS_INVALID_TARGET_ID, "Invalid TARGET ID"},
2242         { SRB_STATUS_BAD_FUNCTION,      "Bad Function"},
2243         { SRB_STATUS_ERROR_RECOVERY,    "Error Recovery"},
2244         { SRB_STATUS_NOT_STARTED,       "Not Started"},
2245         { SRB_STATUS_NOT_IN_USE,        "Not In Use"},
2246         { SRB_STATUS_FORCE_ABORT,       "Force Abort"},
2247         { SRB_STATUS_DOMAIN_VALIDATION_FAIL,"Domain Validation Failure"},
2248         { 0xff,                         "Unknown Error"}
2249 };
2250
2251 char *aac_get_status_string(u32 status)
2252 {
2253         int i;
2254
2255         for(i=0; i < (sizeof(srb_status_info)/sizeof(struct aac_srb_status_info)); i++ ){
2256                 if(srb_status_info[i].status == status){
2257                         return srb_status_info[i].str;
2258                 }
2259         }
2260
2261         return "Bad Status Code";
2262 }
2263
2264 #endif