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 <linux/dma-mapping.h>
  36 #include <asm/semaphore.h>
  37 #include <asm/uaccess.h>
  38
  39 #include <scsi/scsi.h>
  40 #include <scsi/scsi_cmnd.h>
  41 #include <scsi/scsi_device.h>
  42 #include <scsi/scsi_host.h>
  43
  44 #include "aacraid.h"
  45
  46 /* values for inqd_pdt: Peripheral device type in plain English */
  47 #define INQD_PDT_DA     0x00    /* Direct-access (DISK) device */
  48 #define INQD_PDT_PROC   0x03    /* Processor device */
  49 #define INQD_PDT_CHNGR  0x08    /* Changer (jukebox, scsi2) */
  50 #define INQD_PDT_COMM   0x09    /* Communication device (scsi2) */
  51 #define INQD_PDT_NOLUN2 0x1f    /* Unknown Device (scsi2) */
  52 #define INQD_PDT_NOLUN  0x7f    /* Logical Unit Not Present */
  53
  54 #define INQD_PDT_DMASK  0x1F    /* Peripheral Device Type Mask */
  55 #define INQD_PDT_QMASK  0xE0    /* Peripheral Device Qualifer Mask */
  56
  57 /*
  58  *      Sense codes
  59  */
  60
  61 #define SENCODE_NO_SENSE                        0x00
  62 #define SENCODE_END_OF_DATA                     0x00
  63 #define SENCODE_BECOMING_READY                  0x04
  64 #define SENCODE_INIT_CMD_REQUIRED               0x04
  65 #define SENCODE_PARAM_LIST_LENGTH_ERROR         0x1A
  66 #define SENCODE_INVALID_COMMAND                 0x20
  67 #define SENCODE_LBA_OUT_OF_RANGE                0x21
  68 #define SENCODE_INVALID_CDB_FIELD               0x24
  69 #define SENCODE_LUN_NOT_SUPPORTED               0x25
  70 #define SENCODE_INVALID_PARAM_FIELD             0x26
  71 #define SENCODE_PARAM_NOT_SUPPORTED             0x26
  72 #define SENCODE_PARAM_VALUE_INVALID             0x26
  73 #define SENCODE_RESET_OCCURRED                  0x29
  74 #define SENCODE_LUN_NOT_SELF_CONFIGURED_YET     0x3E
  75 #define SENCODE_INQUIRY_DATA_CHANGED            0x3F
  76 #define SENCODE_SAVING_PARAMS_NOT_SUPPORTED     0x39
  77 #define SENCODE_DIAGNOSTIC_FAILURE              0x40
  78 #define SENCODE_INTERNAL_TARGET_FAILURE         0x44
  79 #define SENCODE_INVALID_MESSAGE_ERROR           0x49
  80 #define SENCODE_LUN_FAILED_SELF_CONFIG          0x4c
  81 #define SENCODE_OVERLAPPED_COMMAND              0x4E
  82
  83 /*
  84  *      Additional sense codes
  85  */
  86
  87 #define ASENCODE_NO_SENSE                       0x00
  88 #define ASENCODE_END_OF_DATA                    0x05
  89 #define ASENCODE_BECOMING_READY                 0x01
  90 #define ASENCODE_INIT_CMD_REQUIRED              0x02
  91 #define ASENCODE_PARAM_LIST_LENGTH_ERROR        0x00
  92 #define ASENCODE_INVALID_COMMAND                0x00
  93 #define ASENCODE_LBA_OUT_OF_RANGE               0x00
  94 #define ASENCODE_INVALID_CDB_FIELD              0x00
  95 #define ASENCODE_LUN_NOT_SUPPORTED              0x00
  96 #define ASENCODE_INVALID_PARAM_FIELD            0x00
  97 #define ASENCODE_PARAM_NOT_SUPPORTED            0x01
  98 #define ASENCODE_PARAM_VALUE_INVALID            0x02
  99 #define ASENCODE_RESET_OCCURRED                 0x00
 100 #define ASENCODE_LUN_NOT_SELF_CONFIGURED_YET    0x00
 101 #define ASENCODE_INQUIRY_DATA_CHANGED           0x03
 102 #define ASENCODE_SAVING_PARAMS_NOT_SUPPORTED    0x00
 103 #define ASENCODE_DIAGNOSTIC_FAILURE             0x80
 104 #define ASENCODE_INTERNAL_TARGET_FAILURE        0x00
 105 #define ASENCODE_INVALID_MESSAGE_ERROR          0x00
 106 #define ASENCODE_LUN_FAILED_SELF_CONFIG         0x00
 107 #define ASENCODE_OVERLAPPED_COMMAND             0x00
 108
 109 #define BYTE0(x) (unsigned char)(x)
 110 #define BYTE1(x) (unsigned char)((x) >> 8)
 111 #define BYTE2(x) (unsigned char)((x) >> 16)
 112 #define BYTE3(x) (unsigned char)((x) >> 24)
 113
 114 /*------------------------------------------------------------------------------
 115  *              S T R U C T S / T Y P E D E F S
 116  *----------------------------------------------------------------------------*/
 117 /* SCSI inquiry data */
 118 struct inquiry_data {
 119         u8 inqd_pdt;    /* Peripheral qualifier | Peripheral Device Type  */
 120         u8 inqd_dtq;    /* RMB | Device Type Qualifier  */
 121         u8 inqd_ver;    /* ISO version | ECMA version | ANSI-approved version */
 122         u8 inqd_rdf;    /* AENC | TrmIOP | Response data format */
 123         u8 inqd_len;    /* Additional length (n-4) */
 124         u8 inqd_pad1[2];/* Reserved - must be zero */
 125         u8 inqd_pad2;   /* RelAdr | WBus32 | WBus16 |  Sync  | Linked |Reserved| CmdQue | SftRe */
 126         u8 inqd_vid[8]; /* Vendor ID */
 127         u8 inqd_pid[16];/* Product ID */
 128         u8 inqd_prl[4]; /* Product Revision Level */
 129 };
 130
 131 /*
 132  *              M O D U L E   G L O B A L S
 133  */
 134
 135 static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* sgmap);
 136 static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* psg);
 137 static unsigned long aac_build_sgraw(struct scsi_cmnd* scsicmd, struct sgmapraw* psg);
 138 static int aac_send_srb_fib(struct scsi_cmnd* scsicmd);
 139 #ifdef AAC_DETAILED_STATUS_INFO
 140 static char *aac_get_status_string(u32 status);
 141 #endif
 142
 143 /*
 144  *      Non dasd selection is handled entirely in aachba now
 145  */
 146
 147 static int nondasd = -1;
 148 static int dacmode = -1;
 149
 150 static int commit = -1;
 151 int startup_timeout = 180;
 152 int aif_timeout = 120;
 153
 154 module_param(nondasd, int, S_IRUGO|S_IWUSR);
 155 MODULE_PARM_DESC(nondasd, "Control scanning of hba for nondasd devices. 0=off, 1=on");
 156 module_param(dacmode, int, S_IRUGO|S_IWUSR);
 157 MODULE_PARM_DESC(dacmode, "Control whether dma addressing is using 64 bit DAC. 0=off, 1=on");
 158 module_param(commit, int, S_IRUGO|S_IWUSR);
 159 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");
 160 module_param(startup_timeout, int, S_IRUGO|S_IWUSR);
 161 MODULE_PARM_DESC(startup_timeout, "The duration of time in seconds to wait for adapter to have it's kernel up and\nrunning. This is typically adjusted for large systems that do not have a BIOS.");
 162 module_param(aif_timeout, int, S_IRUGO|S_IWUSR);
 163 MODULE_PARM_DESC(aif_timeout, "The duration of time in seconds to wait for applications to pick up AIFs before\nderegistering them. This is typically adjusted for heavily burdened systems.");
 164
 165 int numacb = -1;
 166 module_param(numacb, int, S_IRUGO|S_IWUSR);
 167 MODULE_PARM_DESC(numacb, "Request a limit to the number of adapter control blocks (FIB) allocated. Valid values are 512 and down. Default is to use suggestion from Firmware.");
 168
 169 int acbsize = -1;
 170 module_param(acbsize, int, S_IRUGO|S_IWUSR);
 171 MODULE_PARM_DESC(acbsize, "Request a specific adapter control block (FIB) size. Valid values are 512, 2048, 4096 and 8192. Default is to use suggestion from Firmware.");
 172 /**
 173  *      aac_get_config_status   -       check the adapter configuration
 174  *      @common: adapter to query
 175  *
 176  *      Query config status, and commit the configuration if needed.
 177  */
 178 int aac_get_config_status(struct aac_dev *dev)
 179 {
 180         int status = 0;
 181         struct fib * fibptr;
 182
 183         if (!(fibptr = aac_fib_alloc(dev)))
 184                 return -ENOMEM;
 185
 186         aac_fib_init(fibptr);
 187         {
 188                 struct aac_get_config_status *dinfo;
 189                 dinfo = (struct aac_get_config_status *) fib_data(fibptr);
 190
 191                 dinfo->command = cpu_to_le32(VM_ContainerConfig);
 192                 dinfo->type = cpu_to_le32(CT_GET_CONFIG_STATUS);
 193                 dinfo->count = cpu_to_le32(sizeof(((struct aac_get_config_status_resp *)NULL)->data));
 194         }
 195
 196         status = aac_fib_send(ContainerCommand,
 197                             fibptr,
 198                             sizeof (struct aac_get_config_status),
 199                             FsaNormal,
 200                             1, 1,
 201                             NULL, NULL);
 202         if (status < 0 ) {
 203                 printk(KERN_WARNING "aac_get_config_status: SendFIB failed.\n");
 204         } else {
 205                 struct aac_get_config_status_resp *reply
 206                   = (struct aac_get_config_status_resp *) fib_data(fibptr);
 207                 dprintk((KERN_WARNING
 208                   "aac_get_config_status: response=%d status=%d action=%d\n",
 209                   le32_to_cpu(reply->response),
 210                   le32_to_cpu(reply->status),
 211                   le32_to_cpu(reply->data.action)));
 212                 if ((le32_to_cpu(reply->response) != ST_OK) ||
 213                      (le32_to_cpu(reply->status) != CT_OK) ||
 214                      (le32_to_cpu(reply->data.action) > CFACT_PAUSE)) {
 215                         printk(KERN_WARNING "aac_get_config_status: Will not issue the Commit Configuration\n");
 216                         status = -EINVAL;
 217                 }
 218         }
 219         aac_fib_complete(fibptr);
 220         /* Send a CT_COMMIT_CONFIG to enable discovery of devices */
 221         if (status >= 0) {
 222                 if (commit == 1) {
 223                         struct aac_commit_config * dinfo;
 224                         aac_fib_init(fibptr);
 225                         dinfo = (struct aac_commit_config *) fib_data(fibptr);
 226
 227                         dinfo->command = cpu_to_le32(VM_ContainerConfig);
 228                         dinfo->type = cpu_to_le32(CT_COMMIT_CONFIG);
 229
 230                         status = aac_fib_send(ContainerCommand,
 231                                     fibptr,
 232                                     sizeof (struct aac_commit_config),
 233                                     FsaNormal,
 234                                     1, 1,
 235                                     NULL, NULL);
 236                         aac_fib_complete(fibptr);
 237                 } else if (commit == 0) {
 238                         printk(KERN_WARNING
 239                           "aac_get_config_status: Foreign device configurations are being ignored\n");
 240                 }
 241         }
 242         aac_fib_free(fibptr);
 243         return status;
 244 }
 245
 246 /**
 247  *      aac_get_containers      -       list containers
 248  *      @common: adapter to probe
 249  *
 250  *      Make a list of all containers on this controller
 251  */
 252 int aac_get_containers(struct aac_dev *dev)
 253 {
 254         struct fsa_dev_info *fsa_dev_ptr;
 255         u32 index;
 256         int status = 0;
 257         struct fib * fibptr;
 258         unsigned instance;
 259         struct aac_get_container_count *dinfo;
 260         struct aac_get_container_count_resp *dresp;
 261         int maximum_num_containers = MAXIMUM_NUM_CONTAINERS;
 262
 263         instance = dev->scsi_host_ptr->unique_id;
 264
 265         if (!(fibptr = aac_fib_alloc(dev)))
 266                 return -ENOMEM;
 267
 268         aac_fib_init(fibptr);
 269         dinfo = (struct aac_get_container_count *) fib_data(fibptr);
 270         dinfo->command = cpu_to_le32(VM_ContainerConfig);
 271         dinfo->type = cpu_to_le32(CT_GET_CONTAINER_COUNT);
 272
 273         status = aac_fib_send(ContainerCommand,
 274                     fibptr,
 275                     sizeof (struct aac_get_container_count),
 276                     FsaNormal,
 277                     1, 1,
 278                     NULL, NULL);
 279         if (status >= 0) {
 280                 dresp = (struct aac_get_container_count_resp *)fib_data(fibptr);
 281                 maximum_num_containers = le32_to_cpu(dresp->ContainerSwitchEntries);
 282                 aac_fib_complete(fibptr);
 283         }
 284
 285         if (maximum_num_containers < MAXIMUM_NUM_CONTAINERS)
 286                 maximum_num_containers = MAXIMUM_NUM_CONTAINERS;
 287         fsa_dev_ptr = (struct fsa_dev_info *) kmalloc(
 288           sizeof(*fsa_dev_ptr) * maximum_num_containers, GFP_KERNEL);
 289         if (!fsa_dev_ptr) {
 290                 aac_fib_free(fibptr);
 291                 return -ENOMEM;
 292         }
 293         memset(fsa_dev_ptr, 0, sizeof(*fsa_dev_ptr) * maximum_num_containers);
 294
 295         dev->fsa_dev = fsa_dev_ptr;
 296         dev->maximum_num_containers = maximum_num_containers;
 297
 298         for (index = 0; index < dev->maximum_num_containers; index++) {
 299                 struct aac_query_mount *dinfo;
 300                 struct aac_mount *dresp;
 301
 302                 fsa_dev_ptr[index].devname[0] = '\0';
 303
 304                 aac_fib_init(fibptr);
 305                 dinfo = (struct aac_query_mount *) fib_data(fibptr);
 306
 307                 dinfo->command = cpu_to_le32(VM_NameServe);
 308                 dinfo->count = cpu_to_le32(index);
 309                 dinfo->type = cpu_to_le32(FT_FILESYS);
 310
 311                 status = aac_fib_send(ContainerCommand,
 312                                     fibptr,
 313                                     sizeof (struct aac_query_mount),
 314                                     FsaNormal,
 315                                     1, 1,
 316                                     NULL, NULL);
 317                 if (status < 0 ) {
 318                         printk(KERN_WARNING "aac_get_containers: SendFIB failed.\n");
 319                         break;
 320                 }
 321                 dresp = (struct aac_mount *)fib_data(fibptr);
 322
 323                 if ((le32_to_cpu(dresp->status) == ST_OK) &&
 324                     (le32_to_cpu(dresp->mnt[0].vol) == CT_NONE)) {
 325                         dinfo->command = cpu_to_le32(VM_NameServe64);
 326                         dinfo->count = cpu_to_le32(index);
 327                         dinfo->type = cpu_to_le32(FT_FILESYS);
 328
 329                         if (aac_fib_send(ContainerCommand,
 330                                     fibptr,
 331                                     sizeof(struct aac_query_mount),
 332                                     FsaNormal,
 333                                     1, 1,
 334                                     NULL, NULL) < 0)
 335                                 continue;
 336                 } else
 337                         dresp->mnt[0].capacityhigh = 0;
 338
 339                 dprintk ((KERN_DEBUG
 340                   "VM_NameServe cid=%d status=%d vol=%d state=%d cap=%llu\n",
 341                   (int)index, (int)le32_to_cpu(dresp->status),
 342                   (int)le32_to_cpu(dresp->mnt[0].vol),
 343                   (int)le32_to_cpu(dresp->mnt[0].state),
 344                   ((u64)le32_to_cpu(dresp->mnt[0].capacity)) +
 345                     (((u64)le32_to_cpu(dresp->mnt[0].capacityhigh)) << 32)));
 346                 if ((le32_to_cpu(dresp->status) == ST_OK) &&
 347                     (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE) &&
 348                     (le32_to_cpu(dresp->mnt[0].state) != FSCS_HIDDEN)) {
 349                         fsa_dev_ptr[index].valid = 1;
 350                         fsa_dev_ptr[index].type = le32_to_cpu(dresp->mnt[0].vol);
 351                         fsa_dev_ptr[index].size
 352                           = ((u64)le32_to_cpu(dresp->mnt[0].capacity)) +
 353                             (((u64)le32_to_cpu(dresp->mnt[0].capacityhigh)) << 32);
 354                         if (le32_to_cpu(dresp->mnt[0].state) & FSCS_READONLY)
 355                                     fsa_dev_ptr[index].ro = 1;
 356                 }
 357                 aac_fib_complete(fibptr);
 358                 /*
 359                  *      If there are no more containers, then stop asking.
 360                  */
 361                 if ((index + 1) >= le32_to_cpu(dresp->count)){
 362                         break;
 363                 }
 364         }
 365         aac_fib_free(fibptr);
 366         return status;
 367 }
 368
 369 static void aac_internal_transfer(struct scsi_cmnd *scsicmd, void *data, unsigned int offset, unsigned int len)
 370 {
 371         void *buf;
 372         unsigned int transfer_len;
 373         struct scatterlist *sg = scsicmd->request_buffer;
 374
 375         if (scsicmd->use_sg) {
 376                 buf = kmap_atomic(sg->page, KM_IRQ0) + sg->offset;
 377                 transfer_len = min(sg->length, len + offset);
 378         } else {
 379                 buf = scsicmd->request_buffer;
 380                 transfer_len = min(scsicmd->request_bufflen, len + offset);
 381         }
 382
 383         memcpy(buf + offset, data, transfer_len - offset);
 384
 385         if (scsicmd->use_sg)
 386                 kunmap_atomic(buf - sg->offset, KM_IRQ0);
 387
 388 }
 389
 390 static void get_container_name_callback(void *context, struct fib * fibptr)
 391 {
 392         struct aac_get_name_resp * get_name_reply;
 393         struct scsi_cmnd * scsicmd;
 394
 395         scsicmd = (struct scsi_cmnd *) context;
 396         scsicmd->SCp.phase = AAC_OWNER_MIDLEVEL;
 397
 398         dprintk((KERN_DEBUG "get_container_name_callback[cpu %d]: t = %ld.\n", smp_processor_id(), jiffies));
 399         BUG_ON(fibptr == NULL);
 400
 401         get_name_reply = (struct aac_get_name_resp *) fib_data(fibptr);
 402         /* Failure is irrelevant, using default value instead */
 403         if ((le32_to_cpu(get_name_reply->status) == CT_OK)
 404          && (get_name_reply->data[0] != '\0')) {
 405                 char *sp = get_name_reply->data;
 406                 sp[sizeof(((struct aac_get_name_resp *)NULL)->data)-1] = '\0';
 407                 while (*sp == ' ')
 408                         ++sp;
 409                 if (*sp) {
 410                         char d[sizeof(((struct inquiry_data *)NULL)->inqd_pid)];
 411                         int count = sizeof(d);
 412                         char *dp = d;
 413                         do {
 414                                 *dp++ = (*sp) ? *sp++ : ' ';
 415                         } while (--count > 0);
 416                         aac_internal_transfer(scsicmd, d,
 417                           offsetof(struct inquiry_data, inqd_pid), sizeof(d));
 418                 }
 419         }
 420
 421         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
 422
 423         aac_fib_complete(fibptr);
 424         aac_fib_free(fibptr);
 425         scsicmd->scsi_done(scsicmd);
 426 }
 427
 428 /**
 429  *      aac_get_container_name  -       get container name, none blocking.
 430  */
 431 static int aac_get_container_name(struct scsi_cmnd * scsicmd, int cid)
 432 {
 433         int status;
 434         struct aac_get_name *dinfo;
 435         struct fib * cmd_fibcontext;
 436         struct aac_dev * dev;
 437
 438         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
 439
 440         if (!(cmd_fibcontext = aac_fib_alloc(dev)))
 441                 return -ENOMEM;
 442
 443         aac_fib_init(cmd_fibcontext);
 444         dinfo = (struct aac_get_name *) fib_data(cmd_fibcontext);
 445
 446         dinfo->command = cpu_to_le32(VM_ContainerConfig);
 447         dinfo->type = cpu_to_le32(CT_READ_NAME);
 448         dinfo->cid = cpu_to_le32(cid);
 449         dinfo->count = cpu_to_le32(sizeof(((struct aac_get_name_resp *)NULL)->data));
 450
 451         status = aac_fib_send(ContainerCommand,
 452                   cmd_fibcontext,
 453                   sizeof (struct aac_get_name),
 454                   FsaNormal,
 455                   0, 1,
 456                   (fib_callback) get_container_name_callback,
 457                   (void *) scsicmd);
 458
 459         /*
 460          *      Check that the command queued to the controller
 461          */
 462         if (status == -EINPROGRESS) {
 463                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
 464                 return 0;
 465         }
 466
 467         printk(KERN_WARNING "aac_get_container_name: aac_fib_send failed with status: %d.\n", status);
 468         aac_fib_complete(cmd_fibcontext);
 469         aac_fib_free(cmd_fibcontext);
 470         return -1;
 471 }
 472
 473 /**
 474  *      aac_probe_container             -       query a logical volume
 475  *      @dev: device to query
 476  *      @cid: container identifier
 477  *
 478  *      Queries the controller about the given volume. The volume information
 479  *      is updated in the struct fsa_dev_info structure rather than returned.
 480  */
 481
 482 int aac_probe_container(struct aac_dev *dev, int cid)
 483 {
 484         struct fsa_dev_info *fsa_dev_ptr;
 485         int status;
 486         struct aac_query_mount *dinfo;
 487         struct aac_mount *dresp;
 488         struct fib * fibptr;
 489         unsigned instance;
 490
 491         fsa_dev_ptr = dev->fsa_dev;
 492         if (!fsa_dev_ptr)
 493                 return -ENOMEM;
 494         instance = dev->scsi_host_ptr->unique_id;
 495
 496         if (!(fibptr = aac_fib_alloc(dev)))
 497                 return -ENOMEM;
 498
 499         aac_fib_init(fibptr);
 500
 501         dinfo = (struct aac_query_mount *)fib_data(fibptr);
 502
 503         dinfo->command = cpu_to_le32(VM_NameServe);
 504         dinfo->count = cpu_to_le32(cid);
 505         dinfo->type = cpu_to_le32(FT_FILESYS);
 506
 507         status = aac_fib_send(ContainerCommand,
 508                             fibptr,
 509                             sizeof(struct aac_query_mount),
 510                             FsaNormal,
 511                             1, 1,
 512                             NULL, NULL);
 513         if (status < 0) {
 514                 printk(KERN_WARNING "aacraid: aac_probe_container query failed.\n");
 515                 goto error;
 516         }
 517
 518         dresp = (struct aac_mount *) fib_data(fibptr);
 519
 520         if ((le32_to_cpu(dresp->status) == ST_OK) &&
 521             (le32_to_cpu(dresp->mnt[0].vol) == CT_NONE)) {
 522                 dinfo->command = cpu_to_le32(VM_NameServe64);
 523                 dinfo->count = cpu_to_le32(cid);
 524                 dinfo->type = cpu_to_le32(FT_FILESYS);
 525
 526                 if (aac_fib_send(ContainerCommand,
 527                             fibptr,
 528                             sizeof(struct aac_query_mount),
 529                             FsaNormal,
 530                             1, 1,
 531                             NULL, NULL) < 0)
 532                         goto error;
 533         } else
 534                 dresp->mnt[0].capacityhigh = 0;
 535
 536         if ((le32_to_cpu(dresp->status) == ST_OK) &&
 537             (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE) &&
 538             (le32_to_cpu(dresp->mnt[0].state) != FSCS_HIDDEN)) {
 539                 fsa_dev_ptr[cid].valid = 1;
 540                 fsa_dev_ptr[cid].type = le32_to_cpu(dresp->mnt[0].vol);
 541                 fsa_dev_ptr[cid].size
 542                   = ((u64)le32_to_cpu(dresp->mnt[0].capacity)) +
 543                     (((u64)le32_to_cpu(dresp->mnt[0].capacityhigh)) << 32);
 544                 if (le32_to_cpu(dresp->mnt[0].state) & FSCS_READONLY)
 545                         fsa_dev_ptr[cid].ro = 1;
 546         }
 547
 548 error:
 549         aac_fib_complete(fibptr);
 550         aac_fib_free(fibptr);
 551
 552         return status;
 553 }
 554
 555 /* Local Structure to set SCSI inquiry data strings */
 556 struct scsi_inq {
 557         char vid[8];         /* Vendor ID */
 558         char pid[16];        /* Product ID */
 559         char prl[4];         /* Product Revision Level */
 560 };
 561
 562 /**
 563  *      InqStrCopy      -       string merge
 564  *      @a:     string to copy from
 565  *      @b:     string to copy to
 566  *
 567  *      Copy a String from one location to another
 568  *      without copying \0
 569  */
 570
 571 static void inqstrcpy(char *a, char *b)
 572 {
 573
 574         while(*a != (char)0)
 575                 *b++ = *a++;
 576 }
 577
 578 static char *container_types[] = {
 579         "None",
 580         "Volume",
 581         "Mirror",
 582         "Stripe",
 583         "RAID5",
 584         "SSRW",
 585         "SSRO",
 586         "Morph",
 587         "Legacy",
 588         "RAID4",
 589         "RAID10",
 590         "RAID00",
 591         "V-MIRRORS",
 592         "PSEUDO R4",
 593         "RAID50",
 594         "RAID5D",
 595         "RAID5D0",
 596         "RAID1E",
 597         "RAID6",
 598         "RAID60",
 599         "Unknown"
 600 };
 601
 602
 603
 604 /* Function: setinqstr
 605  *
 606  * Arguments: [1] pointer to void [1] int
 607  *
 608  * Purpose: Sets SCSI inquiry data strings for vendor, product
 609  * and revision level. Allows strings to be set in platform dependant
 610  * files instead of in OS dependant driver source.
 611  */
 612
 613 static void setinqstr(struct aac_dev *dev, void *data, int tindex)
 614 {
 615         struct scsi_inq *str;
 616
 617         str = (struct scsi_inq *)(data); /* cast data to scsi inq block */
 618         memset(str, ' ', sizeof(*str));
 619
 620         if (dev->supplement_adapter_info.AdapterTypeText[0]) {
 621                 char * cp = dev->supplement_adapter_info.AdapterTypeText;
 622                 int c = sizeof(str->vid);
 623                 while (*cp && *cp != ' ' && --c)
 624                         ++cp;
 625                 c = *cp;
 626                 *cp = '\0';
 627                 inqstrcpy (dev->supplement_adapter_info.AdapterTypeText,
 628                   str->vid);
 629                 *cp = c;
 630                 while (*cp && *cp != ' ')
 631                         ++cp;
 632                 while (*cp == ' ')
 633                         ++cp;
 634                 /* last six chars reserved for vol type */
 635                 c = 0;
 636                 if (strlen(cp) > sizeof(str->pid)) {
 637                         c = cp[sizeof(str->pid)];
 638                         cp[sizeof(str->pid)] = '\0';
 639                 }
 640                 inqstrcpy (cp, str->pid);
 641                 if (c)
 642                         cp[sizeof(str->pid)] = c;
 643         } else {
 644                 struct aac_driver_ident *mp = aac_get_driver_ident(dev->cardtype);
 645
 646                 inqstrcpy (mp->vname, str->vid);
 647                 /* last six chars reserved for vol type */
 648                 inqstrcpy (mp->model, str->pid);
 649         }
 650
 651         if (tindex < ARRAY_SIZE(container_types)){
 652                 char *findit = str->pid;
 653
 654                 for ( ; *findit != ' '; findit++); /* walk till we find a space */
 655                 /* RAID is superfluous in the context of a RAID device */
 656                 if (memcmp(findit-4, "RAID", 4) == 0)
 657                         *(findit -= 4) = ' ';
 658                 if (((findit - str->pid) + strlen(container_types[tindex]))
 659                  < (sizeof(str->pid) + sizeof(str->prl)))
 660                         inqstrcpy (container_types[tindex], findit + 1);
 661         }
 662         inqstrcpy ("V1.0", str->prl);
 663 }
 664
 665 static void set_sense(u8 *sense_buf, u8 sense_key, u8 sense_code,
 666                       u8 a_sense_code, u8 incorrect_length,
 667                       u8 bit_pointer, u16 field_pointer,
 668                       u32 residue)
 669 {
 670         sense_buf[0] = 0xF0;    /* Sense data valid, err code 70h (current error) */
 671         sense_buf[1] = 0;       /* Segment number, always zero */
 672
 673         if (incorrect_length) {
 674                 sense_buf[2] = sense_key | 0x20;/* Set ILI bit | sense key */
 675                 sense_buf[3] = BYTE3(residue);
 676                 sense_buf[4] = BYTE2(residue);
 677                 sense_buf[5] = BYTE1(residue);
 678                 sense_buf[6] = BYTE0(residue);
 679         } else
 680                 sense_buf[2] = sense_key;       /* Sense key */
 681
 682         if (sense_key == ILLEGAL_REQUEST)
 683                 sense_buf[7] = 10;      /* Additional sense length */
 684         else
 685                 sense_buf[7] = 6;       /* Additional sense length */
 686
 687         sense_buf[12] = sense_code;     /* Additional sense code */
 688         sense_buf[13] = a_sense_code;   /* Additional sense code qualifier */
 689         if (sense_key == ILLEGAL_REQUEST) {
 690                 sense_buf[15] = 0;
 691
 692                 if (sense_code == SENCODE_INVALID_PARAM_FIELD)
 693                         sense_buf[15] = 0x80;/* Std sense key specific field */
 694                 /* Illegal parameter is in the parameter block */
 695
 696                 if (sense_code == SENCODE_INVALID_CDB_FIELD)
 697                         sense_buf[15] = 0xc0;/* Std sense key specific field */
 698                 /* Illegal parameter is in the CDB block */
 699                 sense_buf[15] |= bit_pointer;
 700                 sense_buf[16] = field_pointer >> 8;     /* MSB */
 701                 sense_buf[17] = field_pointer;          /* LSB */
 702         }
 703 }
 704
 705 int aac_get_adapter_info(struct aac_dev* dev)
 706 {
 707         struct fib* fibptr;
 708         int rcode;
 709         u32 tmp;
 710         struct aac_adapter_info *info;
 711         struct aac_bus_info *command;
 712         struct aac_bus_info_response *bus_info;
 713
 714         if (!(fibptr = aac_fib_alloc(dev)))
 715                 return -ENOMEM;
 716
 717         aac_fib_init(fibptr);
 718         info = (struct aac_adapter_info *) fib_data(fibptr);
 719         memset(info,0,sizeof(*info));
 720
 721         rcode = aac_fib_send(RequestAdapterInfo,
 722                          fibptr,
 723                          sizeof(*info),
 724                          FsaNormal,
 725                          -1, 1, /* First `interrupt' command uses special wait */
 726                          NULL,
 727                          NULL);
 728
 729         if (rcode < 0) {
 730                 aac_fib_complete(fibptr);
 731                 aac_fib_free(fibptr);
 732                 return rcode;
 733         }
 734         memcpy(&dev->adapter_info, info, sizeof(*info));
 735
 736         if (dev->adapter_info.options & AAC_OPT_SUPPLEMENT_ADAPTER_INFO) {
 737                 struct aac_supplement_adapter_info * info;
 738
 739                 aac_fib_init(fibptr);
 740
 741                 info = (struct aac_supplement_adapter_info *) fib_data(fibptr);
 742
 743                 memset(info,0,sizeof(*info));
 744
 745                 rcode = aac_fib_send(RequestSupplementAdapterInfo,
 746                                  fibptr,
 747                                  sizeof(*info),
 748                                  FsaNormal,
 749                                  1, 1,
 750                                  NULL,
 751                                  NULL);
 752
 753                 if (rcode >= 0)
 754                         memcpy(&dev->supplement_adapter_info, info, sizeof(*info));
 755         }
 756
 757
 758         /*
 759          * GetBusInfo
 760          */
 761
 762         aac_fib_init(fibptr);
 763
 764         bus_info = (struct aac_bus_info_response *) fib_data(fibptr);
 765
 766         memset(bus_info, 0, sizeof(*bus_info));
 767
 768         command = (struct aac_bus_info *)bus_info;
 769
 770         command->Command = cpu_to_le32(VM_Ioctl);
 771         command->ObjType = cpu_to_le32(FT_DRIVE);
 772         command->MethodId = cpu_to_le32(1);
 773         command->CtlCmd = cpu_to_le32(GetBusInfo);
 774
 775         rcode = aac_fib_send(ContainerCommand,
 776                          fibptr,
 777                          sizeof (*bus_info),
 778                          FsaNormal,
 779                          1, 1,
 780                          NULL, NULL);
 781
 782         if (rcode >= 0 && le32_to_cpu(bus_info->Status) == ST_OK) {
 783                 dev->maximum_num_physicals = le32_to_cpu(bus_info->TargetsPerBus);
 784                 dev->maximum_num_channels = le32_to_cpu(bus_info->BusCount);
 785         }
 786
 787         tmp = le32_to_cpu(dev->adapter_info.kernelrev);
 788         printk(KERN_INFO "%s%d: kernel %d.%d-%d[%d] %.*s\n",
 789                         dev->name,
 790                         dev->id,
 791                         tmp>>24,
 792                         (tmp>>16)&0xff,
 793                         tmp&0xff,
 794                         le32_to_cpu(dev->adapter_info.kernelbuild),
 795                         (int)sizeof(dev->supplement_adapter_info.BuildDate),
 796                         dev->supplement_adapter_info.BuildDate);
 797         tmp = le32_to_cpu(dev->adapter_info.monitorrev);
 798         printk(KERN_INFO "%s%d: monitor %d.%d-%d[%d]\n",
 799                         dev->name, dev->id,
 800                         tmp>>24,(tmp>>16)&0xff,tmp&0xff,
 801                         le32_to_cpu(dev->adapter_info.monitorbuild));
 802         tmp = le32_to_cpu(dev->adapter_info.biosrev);
 803         printk(KERN_INFO "%s%d: bios %d.%d-%d[%d]\n",
 804                         dev->name, dev->id,
 805                         tmp>>24,(tmp>>16)&0xff,tmp&0xff,
 806                         le32_to_cpu(dev->adapter_info.biosbuild));
 807         if (le32_to_cpu(dev->adapter_info.serial[0]) != 0xBAD0)
 808                 printk(KERN_INFO "%s%d: serial %x\n",
 809                         dev->name, dev->id,
 810                         le32_to_cpu(dev->adapter_info.serial[0]));
 811
 812         dev->nondasd_support = 0;
 813         dev->raid_scsi_mode = 0;
 814         if(dev->adapter_info.options & AAC_OPT_NONDASD){
 815                 dev->nondasd_support = 1;
 816         }
 817
 818         /*
 819          * If the firmware supports ROMB RAID/SCSI mode and we are currently
 820          * in RAID/SCSI mode, set the flag. For now if in this mode we will
 821          * force nondasd support on. If we decide to allow the non-dasd flag
 822          * additional changes changes will have to be made to support
 823          * RAID/SCSI.  the function aac_scsi_cmd in this module will have to be
 824          * changed to support the new dev->raid_scsi_mode flag instead of
 825          * leaching off of the dev->nondasd_support flag. Also in linit.c the
 826          * function aac_detect will have to be modified where it sets up the
 827          * max number of channels based on the aac->nondasd_support flag only.
 828          */
 829         if ((dev->adapter_info.options & AAC_OPT_SCSI_MANAGED) &&
 830             (dev->adapter_info.options & AAC_OPT_RAID_SCSI_MODE)) {
 831                 dev->nondasd_support = 1;
 832                 dev->raid_scsi_mode = 1;
 833         }
 834         if (dev->raid_scsi_mode != 0)
 835                 printk(KERN_INFO "%s%d: ROMB RAID/SCSI mode enabled\n",
 836                                 dev->name, dev->id);
 837
 838         if(nondasd != -1) {
 839                 dev->nondasd_support = (nondasd!=0);
 840         }
 841         if(dev->nondasd_support != 0){
 842                 printk(KERN_INFO "%s%d: Non-DASD support enabled.\n",dev->name, dev->id);
 843         }
 844
 845         dev->dac_support = 0;
 846         if( (sizeof(dma_addr_t) > 4) && (dev->adapter_info.options & AAC_OPT_SGMAP_HOST64)){
 847                 printk(KERN_INFO "%s%d: 64bit support enabled.\n", dev->name, dev->id);
 848                 dev->dac_support = 1;
 849         }
 850
 851         if(dacmode != -1) {
 852                 dev->dac_support = (dacmode!=0);
 853         }
 854         if(dev->dac_support != 0) {
 855                 if (!pci_set_dma_mask(dev->pdev, DMA_64BIT_MASK) &&
 856                         !pci_set_consistent_dma_mask(dev->pdev, DMA_64BIT_MASK)) {
 857                         printk(KERN_INFO"%s%d: 64 Bit DAC enabled\n",
 858                                 dev->name, dev->id);
 859                 } else if (!pci_set_dma_mask(dev->pdev, DMA_32BIT_MASK) &&
 860                         !pci_set_consistent_dma_mask(dev->pdev, DMA_32BIT_MASK)) {
 861                         printk(KERN_INFO"%s%d: DMA mask set failed, 64 Bit DAC disabled\n",
 862                                 dev->name, dev->id);
 863                         dev->dac_support = 0;
 864                 } else {
 865                         printk(KERN_WARNING"%s%d: No suitable DMA available.\n",
 866                                 dev->name, dev->id);
 867                         rcode = -ENOMEM;
 868                 }
 869         }
 870         /*
 871          * 57 scatter gather elements
 872          */
 873         if (!(dev->raw_io_interface)) {
 874                 dev->scsi_host_ptr->sg_tablesize = (dev->max_fib_size -
 875                         sizeof(struct aac_fibhdr) -
 876                         sizeof(struct aac_write) + sizeof(struct sgentry)) /
 877                                 sizeof(struct sgentry);
 878                 if (dev->dac_support) {
 879                         /*
 880                          * 38 scatter gather elements
 881                          */
 882                         dev->scsi_host_ptr->sg_tablesize =
 883                                 (dev->max_fib_size -
 884                                 sizeof(struct aac_fibhdr) -
 885                                 sizeof(struct aac_write64) +
 886                                 sizeof(struct sgentry64)) /
 887                                         sizeof(struct sgentry64);
 888                 }
 889                 dev->scsi_host_ptr->max_sectors = AAC_MAX_32BIT_SGBCOUNT;
 890                 if(!(dev->adapter_info.options & AAC_OPT_NEW_COMM)) {
 891                         /*
 892                          * Worst case size that could cause sg overflow when
 893                          * we break up SG elements that are larger than 64KB.
 894                          * Would be nice if we could tell the SCSI layer what
 895                          * the maximum SG element size can be. Worst case is
 896                          * (sg_tablesize-1) 4KB elements with one 64KB
 897                          * element.
 898                          *      32bit -> 468 or 238KB   64bit -> 424 or 212KB
 899                          */
 900                         dev->scsi_host_ptr->max_sectors =
 901                           (dev->scsi_host_ptr->sg_tablesize * 8) + 112;
 902                 }
 903         }
 904
 905         aac_fib_complete(fibptr);
 906         aac_fib_free(fibptr);
 907
 908         return rcode;
 909 }
 910
 911
 912 static void io_callback(void *context, struct fib * fibptr)
 913 {
 914         struct aac_dev *dev;
 915         struct aac_read_reply *readreply;
 916         struct scsi_cmnd *scsicmd;
 917         u32 cid;
 918
 919         scsicmd = (struct scsi_cmnd *) context;
 920         scsicmd->SCp.phase = AAC_OWNER_MIDLEVEL;
 921
 922         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
 923         cid = scmd_id(scsicmd);
 924
 925         if (nblank(dprintk(x))) {
 926                 u64 lba;
 927                 switch (scsicmd->cmnd[0]) {
 928                 case WRITE_6:
 929                 case READ_6:
 930                         lba = ((scsicmd->cmnd[1] & 0x1F) << 16) |
 931                             (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
 932                         break;
 933                 case WRITE_16:
 934                 case READ_16:
 935                         lba = ((u64)scsicmd->cmnd[2] << 56) |
 936                               ((u64)scsicmd->cmnd[3] << 48) |
 937                               ((u64)scsicmd->cmnd[4] << 40) |
 938                               ((u64)scsicmd->cmnd[5] << 32) |
 939                               ((u64)scsicmd->cmnd[6] << 24) |
 940                               (scsicmd->cmnd[7] << 16) |
 941                               (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
 942                         break;
 943                 case WRITE_12:
 944                 case READ_12:
 945                         lba = ((u64)scsicmd->cmnd[2] << 24) |
 946                               (scsicmd->cmnd[3] << 16) |
 947                               (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
 948                         break;
 949                 default:
 950                         lba = ((u64)scsicmd->cmnd[2] << 24) |
 951                                (scsicmd->cmnd[3] << 16) |
 952                                (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
 953                         break;
 954                 }
 955                 printk(KERN_DEBUG
 956                   "io_callback[cpu %d]: lba = %llu, t = %ld.\n",
 957                   smp_processor_id(), (unsigned long long)lba, jiffies);
 958         }
 959
 960         BUG_ON(fibptr == NULL);
 961
 962         if(scsicmd->use_sg)
 963                 pci_unmap_sg(dev->pdev,
 964                         (struct scatterlist *)scsicmd->request_buffer,
 965                         scsicmd->use_sg,
 966                         scsicmd->sc_data_direction);
 967         else if(scsicmd->request_bufflen)
 968                 pci_unmap_single(dev->pdev, scsicmd->SCp.dma_handle,
 969                                  scsicmd->request_bufflen,
 970                                  scsicmd->sc_data_direction);
 971         readreply = (struct aac_read_reply *)fib_data(fibptr);
 972         if (le32_to_cpu(readreply->status) == ST_OK)
 973                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
 974         else {
 975 #ifdef AAC_DETAILED_STATUS_INFO
 976                 printk(KERN_WARNING "io_callback: io failed, status = %d\n",
 977                   le32_to_cpu(readreply->status));
 978 #endif
 979                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
 980                 set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
 981                                     HARDWARE_ERROR,
 982                                     SENCODE_INTERNAL_TARGET_FAILURE,
 983                                     ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
 984                                     0, 0);
 985                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
 986                   (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
 987                     ? sizeof(scsicmd->sense_buffer)
 988                     : sizeof(dev->fsa_dev[cid].sense_data));
 989         }
 990         aac_fib_complete(fibptr);
 991         aac_fib_free(fibptr);
 992
 993         scsicmd->scsi_done(scsicmd);
 994 }
 995
 996 static int aac_read(struct scsi_cmnd * scsicmd, int cid)
 997 {
 998         u64 lba;
 999         u32 count;
1000         int status;
1001
1002         u16 fibsize;
1003         struct aac_dev *dev;
1004         struct fib * cmd_fibcontext;
1005
1006         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1007         /*
1008          *      Get block address and transfer length
1009          */
1010         switch (scsicmd->cmnd[0]) {
1011         case READ_6:
1012                 dprintk((KERN_DEBUG "aachba: received a read(6) command on id %d.\n", cid));
1013
1014                 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) |
1015                         (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
1016                 count = scsicmd->cmnd[4];
1017
1018                 if (count == 0)
1019                         count = 256;
1020                 break;
1021         case READ_16:
1022                 dprintk((KERN_DEBUG "aachba: received a read(16) command on id %d.\n", cid));
1023
1024                 lba =   ((u64)scsicmd->cmnd[2] << 56) |
1025                         ((u64)scsicmd->cmnd[3] << 48) |
1026                         ((u64)scsicmd->cmnd[4] << 40) |
1027                         ((u64)scsicmd->cmnd[5] << 32) |
1028                         ((u64)scsicmd->cmnd[6] << 24) |
1029                         (scsicmd->cmnd[7] << 16) |
1030                         (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1031                 count = (scsicmd->cmnd[10] << 24) |
1032                         (scsicmd->cmnd[11] << 16) |
1033                         (scsicmd->cmnd[12] << 8) | scsicmd->cmnd[13];
1034                 break;
1035         case READ_12:
1036                 dprintk((KERN_DEBUG "aachba: received a read(12) command on id %d.\n", cid));
1037
1038                 lba = ((u64)scsicmd->cmnd[2] << 24) |
1039                         (scsicmd->cmnd[3] << 16) |
1040                         (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1041                 count = (scsicmd->cmnd[6] << 24) |
1042                         (scsicmd->cmnd[7] << 16) |
1043                         (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1044                 break;
1045         default:
1046                 dprintk((KERN_DEBUG "aachba: received a read(10) command on id %d.\n", cid));
1047
1048                 lba = ((u64)scsicmd->cmnd[2] << 24) |
1049                         (scsicmd->cmnd[3] << 16) |
1050                         (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1051                 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
1052                 break;
1053         }
1054         dprintk((KERN_DEBUG "aac_read[cpu %d]: lba = %llu, t = %ld.\n",
1055           smp_processor_id(), (unsigned long long)lba, jiffies));
1056         if ((!(dev->raw_io_interface) || !(dev->raw_io_64)) &&
1057                 (lba & 0xffffffff00000000LL)) {
1058                 dprintk((KERN_DEBUG "aac_read: Illegal lba\n"));
1059                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 |
1060                         SAM_STAT_CHECK_CONDITION;
1061                 set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
1062                             HARDWARE_ERROR,
1063                             SENCODE_INTERNAL_TARGET_FAILURE,
1064                             ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
1065                             0, 0);
1066                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1067                   (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
1068                     ? sizeof(scsicmd->sense_buffer)
1069                     : sizeof(dev->fsa_dev[cid].sense_data));
1070                 scsicmd->scsi_done(scsicmd);
1071                 return 0;
1072         }
1073         /*
1074          *      Alocate and initialize a Fib
1075          */
1076         if (!(cmd_fibcontext = aac_fib_alloc(dev))) {
1077                 return -1;
1078         }
1079
1080         aac_fib_init(cmd_fibcontext);
1081
1082         if (dev->raw_io_interface) {
1083                 struct aac_raw_io *readcmd;
1084                 readcmd = (struct aac_raw_io *) fib_data(cmd_fibcontext);
1085                 readcmd->block[0] = cpu_to_le32((u32)(lba&0xffffffff));
1086                 readcmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
1087                 readcmd->count = cpu_to_le32(count<<9);
1088                 readcmd->cid = cpu_to_le16(cid);
1089                 readcmd->flags = cpu_to_le16(1);
1090                 readcmd->bpTotal = 0;
1091                 readcmd->bpComplete = 0;
1092
1093                 aac_build_sgraw(scsicmd, &readcmd->sg);
1094                 fibsize = sizeof(struct aac_raw_io) + ((le32_to_cpu(readcmd->sg.count) - 1) * sizeof (struct sgentryraw));
1095                 BUG_ON(fibsize > (dev->max_fib_size - sizeof(struct aac_fibhdr)));
1096                 /*
1097                  *      Now send the Fib to the adapter
1098                  */
1099                 status = aac_fib_send(ContainerRawIo,
1100                           cmd_fibcontext,
1101                           fibsize,
1102                           FsaNormal,
1103                           0, 1,
1104                           (fib_callback) io_callback,
1105                           (void *) scsicmd);
1106         } else if (dev->dac_support == 1) {
1107                 struct aac_read64 *readcmd;
1108                 readcmd = (struct aac_read64 *) fib_data(cmd_fibcontext);
1109                 readcmd->command = cpu_to_le32(VM_CtHostRead64);
1110                 readcmd->cid = cpu_to_le16(cid);
1111                 readcmd->sector_count = cpu_to_le16(count);
1112                 readcmd->block = cpu_to_le32((u32)(lba&0xffffffff));
1113                 readcmd->pad   = 0;
1114                 readcmd->flags = 0;
1115
1116                 aac_build_sg64(scsicmd, &readcmd->sg);
1117                 fibsize = sizeof(struct aac_read64) +
1118                         ((le32_to_cpu(readcmd->sg.count) - 1) *
1119                          sizeof (struct sgentry64));
1120                 BUG_ON (fibsize > (dev->max_fib_size -
1121                                         sizeof(struct aac_fibhdr)));
1122                 /*
1123                  *      Now send the Fib to the adapter
1124                  */
1125                 status = aac_fib_send(ContainerCommand64,
1126                           cmd_fibcontext,
1127                           fibsize,
1128                           FsaNormal,
1129                           0, 1,
1130                           (fib_callback) io_callback,
1131                           (void *) scsicmd);
1132         } else {
1133                 struct aac_read *readcmd;
1134                 readcmd = (struct aac_read *) fib_data(cmd_fibcontext);
1135                 readcmd->command = cpu_to_le32(VM_CtBlockRead);
1136                 readcmd->cid = cpu_to_le32(cid);
1137                 readcmd->block = cpu_to_le32((u32)(lba&0xffffffff));
1138                 readcmd->count = cpu_to_le32(count * 512);
1139
1140                 aac_build_sg(scsicmd, &readcmd->sg);
1141                 fibsize = sizeof(struct aac_read) +
1142                         ((le32_to_cpu(readcmd->sg.count) - 1) *
1143                          sizeof (struct sgentry));
1144                 BUG_ON (fibsize > (dev->max_fib_size -
1145                                         sizeof(struct aac_fibhdr)));
1146                 /*
1147                  *      Now send the Fib to the adapter
1148                  */
1149                 status = aac_fib_send(ContainerCommand,
1150                           cmd_fibcontext,
1151                           fibsize,
1152                           FsaNormal,
1153                           0, 1,
1154                           (fib_callback) io_callback,
1155                           (void *) scsicmd);
1156         }
1157
1158
1159
1160         /*
1161          *      Check that the command queued to the controller
1162          */
1163         if (status == -EINPROGRESS) {
1164                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
1165                 return 0;
1166         }
1167
1168         printk(KERN_WARNING "aac_read: aac_fib_send failed with status: %d.\n", status);
1169         /*
1170          *      For some reason, the Fib didn't queue, return QUEUE_FULL
1171          */
1172         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_TASK_SET_FULL;
1173         scsicmd->scsi_done(scsicmd);
1174         aac_fib_complete(cmd_fibcontext);
1175         aac_fib_free(cmd_fibcontext);
1176         return 0;
1177 }
1178
1179 static int aac_write(struct scsi_cmnd * scsicmd, int cid)
1180 {
1181         u64 lba;
1182         u32 count;
1183         int status;
1184         u16 fibsize;
1185         struct aac_dev *dev;
1186         struct fib * cmd_fibcontext;
1187
1188         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1189         /*
1190          *      Get block address and transfer length
1191          */
1192         if (scsicmd->cmnd[0] == WRITE_6)        /* 6 byte command */
1193         {
1194                 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
1195                 count = scsicmd->cmnd[4];
1196                 if (count == 0)
1197                         count = 256;
1198         } else if (scsicmd->cmnd[0] == WRITE_16) { /* 16 byte command */
1199                 dprintk((KERN_DEBUG "aachba: received a write(16) command on id %d.\n", cid));
1200
1201                 lba =   ((u64)scsicmd->cmnd[2] << 56) |
1202                         ((u64)scsicmd->cmnd[3] << 48) |
1203                         ((u64)scsicmd->cmnd[4] << 40) |
1204                         ((u64)scsicmd->cmnd[5] << 32) |
1205                         ((u64)scsicmd->cmnd[6] << 24) |
1206                         (scsicmd->cmnd[7] << 16) |
1207                         (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1208                 count = (scsicmd->cmnd[10] << 24) | (scsicmd->cmnd[11] << 16) |
1209                         (scsicmd->cmnd[12] << 8) | scsicmd->cmnd[13];
1210         } else if (scsicmd->cmnd[0] == WRITE_12) { /* 12 byte command */
1211                 dprintk((KERN_DEBUG "aachba: received a write(12) command on id %d.\n", cid));
1212
1213                 lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16)
1214                     | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1215                 count = (scsicmd->cmnd[6] << 24) | (scsicmd->cmnd[7] << 16)
1216                       | (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1217         } else {
1218                 dprintk((KERN_DEBUG "aachba: received a write(10) command on id %d.\n", cid));
1219                 lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1220                 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
1221         }
1222         dprintk((KERN_DEBUG "aac_write[cpu %d]: lba = %llu, t = %ld.\n",
1223           smp_processor_id(), (unsigned long long)lba, jiffies));
1224         if ((!(dev->raw_io_interface) || !(dev->raw_io_64))
1225          && (lba & 0xffffffff00000000LL)) {
1226                 dprintk((KERN_DEBUG "aac_write: Illegal lba\n"));
1227                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1228                 set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
1229                             HARDWARE_ERROR,
1230                             SENCODE_INTERNAL_TARGET_FAILURE,
1231                             ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
1232                             0, 0);
1233                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1234                   (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
1235                     ? sizeof(scsicmd->sense_buffer)
1236                     : sizeof(dev->fsa_dev[cid].sense_data));
1237                 scsicmd->scsi_done(scsicmd);
1238                 return 0;
1239         }
1240         /*
1241          *      Allocate and initialize a Fib then setup a BlockWrite command
1242          */
1243         if (!(cmd_fibcontext = aac_fib_alloc(dev))) {
1244                 scsicmd->result = DID_ERROR << 16;
1245                 scsicmd->scsi_done(scsicmd);
1246                 return 0;
1247         }
1248         aac_fib_init(cmd_fibcontext);
1249
1250         if (dev->raw_io_interface) {
1251                 struct aac_raw_io *writecmd;
1252                 writecmd = (struct aac_raw_io *) fib_data(cmd_fibcontext);
1253                 writecmd->block[0] = cpu_to_le32((u32)(lba&0xffffffff));
1254                 writecmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
1255                 writecmd->count = cpu_to_le32(count<<9);
1256                 writecmd->cid = cpu_to_le16(cid);
1257                 writecmd->flags = 0;
1258                 writecmd->bpTotal = 0;
1259                 writecmd->bpComplete = 0;
1260
1261                 aac_build_sgraw(scsicmd, &writecmd->sg);
1262                 fibsize = sizeof(struct aac_raw_io) + ((le32_to_cpu(writecmd->sg.count) - 1) * sizeof (struct sgentryraw));
1263                 BUG_ON(fibsize > (dev->max_fib_size - sizeof(struct aac_fibhdr)));
1264                 /*
1265                  *      Now send the Fib to the adapter
1266                  */
1267                 status = aac_fib_send(ContainerRawIo,
1268                           cmd_fibcontext,
1269                           fibsize,
1270                           FsaNormal,
1271                           0, 1,
1272                           (fib_callback) io_callback,
1273                           (void *) scsicmd);
1274         } else if (dev->dac_support == 1) {
1275                 struct aac_write64 *writecmd;
1276                 writecmd = (struct aac_write64 *) fib_data(cmd_fibcontext);
1277                 writecmd->command = cpu_to_le32(VM_CtHostWrite64);
1278                 writecmd->cid = cpu_to_le16(cid);
1279                 writecmd->sector_count = cpu_to_le16(count);
1280                 writecmd->block = cpu_to_le32((u32)(lba&0xffffffff));
1281                 writecmd->pad   = 0;
1282                 writecmd->flags = 0;
1283
1284                 aac_build_sg64(scsicmd, &writecmd->sg);
1285                 fibsize = sizeof(struct aac_write64) +
1286                         ((le32_to_cpu(writecmd->sg.count) - 1) *
1287                          sizeof (struct sgentry64));
1288                 BUG_ON (fibsize > (dev->max_fib_size -
1289                                         sizeof(struct aac_fibhdr)));
1290                 /*
1291                  *      Now send the Fib to the adapter
1292                  */
1293                 status = aac_fib_send(ContainerCommand64,
1294                           cmd_fibcontext,
1295                           fibsize,
1296                           FsaNormal,
1297                           0, 1,
1298                           (fib_callback) io_callback,
1299                           (void *) scsicmd);
1300         } else {
1301                 struct aac_write *writecmd;
1302                 writecmd = (struct aac_write *) fib_data(cmd_fibcontext);
1303                 writecmd->command = cpu_to_le32(VM_CtBlockWrite);
1304                 writecmd->cid = cpu_to_le32(cid);
1305                 writecmd->block = cpu_to_le32((u32)(lba&0xffffffff));
1306                 writecmd->count = cpu_to_le32(count * 512);
1307                 writecmd->sg.count = cpu_to_le32(1);
1308                 /* ->stable is not used - it did mean which type of write */
1309
1310                 aac_build_sg(scsicmd, &writecmd->sg);
1311                 fibsize = sizeof(struct aac_write) +
1312                         ((le32_to_cpu(writecmd->sg.count) - 1) *
1313                          sizeof (struct sgentry));
1314                 BUG_ON (fibsize > (dev->max_fib_size -
1315                                         sizeof(struct aac_fibhdr)));
1316                 /*
1317                  *      Now send the Fib to the adapter
1318                  */
1319                 status = aac_fib_send(ContainerCommand,
1320                           cmd_fibcontext,
1321                           fibsize,
1322                           FsaNormal,
1323                           0, 1,
1324                           (fib_callback) io_callback,
1325                           (void *) scsicmd);
1326         }
1327
1328         /*
1329          *      Check that the command queued to the controller
1330          */
1331         if (status == -EINPROGRESS) {
1332                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
1333                 return 0;
1334         }
1335
1336         printk(KERN_WARNING "aac_write: aac_fib_send failed with status: %d\n", status);
1337         /*
1338          *      For some reason, the Fib didn't queue, return QUEUE_FULL
1339          */
1340         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_TASK_SET_FULL;
1341         scsicmd->scsi_done(scsicmd);
1342
1343         aac_fib_complete(cmd_fibcontext);
1344         aac_fib_free(cmd_fibcontext);
1345         return 0;
1346 }
1347
1348 static void synchronize_callback(void *context, struct fib *fibptr)
1349 {
1350         struct aac_synchronize_reply *synchronizereply;
1351         struct scsi_cmnd *cmd;
1352
1353         cmd = context;
1354         cmd->SCp.phase = AAC_OWNER_MIDLEVEL;
1355
1356         dprintk((KERN_DEBUG "synchronize_callback[cpu %d]: t = %ld.\n",
1357                                 smp_processor_id(), jiffies));
1358         BUG_ON(fibptr == NULL);
1359
1360
1361         synchronizereply = fib_data(fibptr);
1362         if (le32_to_cpu(synchronizereply->status) == CT_OK)
1363                 cmd->result = DID_OK << 16 |
1364                         COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1365         else {
1366                 struct scsi_device *sdev = cmd->device;
1367                 struct aac_dev *dev = (struct aac_dev *)sdev->host->hostdata;
1368                 u32 cid = sdev_id(sdev);
1369                 printk(KERN_WARNING
1370                      "synchronize_callback: synchronize failed, status = %d\n",
1371                      le32_to_cpu(synchronizereply->status));
1372                 cmd->result = DID_OK << 16 |
1373                         COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1374                 set_sense((u8 *)&dev->fsa_dev[cid].sense_data,
1375                                     HARDWARE_ERROR,
1376                                     SENCODE_INTERNAL_TARGET_FAILURE,
1377                                     ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
1378                                     0, 0);
1379                 memcpy(cmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1380                   min(sizeof(dev->fsa_dev[cid].sense_data),
1381                           sizeof(cmd->sense_buffer)));
1382         }
1383
1384         aac_fib_complete(fibptr);
1385         aac_fib_free(fibptr);
1386         cmd->scsi_done(cmd);
1387 }
1388
1389 static int aac_synchronize(struct scsi_cmnd *scsicmd, int cid)
1390 {
1391         int status;
1392         struct fib *cmd_fibcontext;
1393         struct aac_synchronize *synchronizecmd;
1394         struct scsi_cmnd *cmd;
1395         struct scsi_device *sdev = scsicmd->device;
1396         int active = 0;
1397         struct aac_dev *aac;
1398         unsigned long flags;
1399
1400         /*
1401          * Wait for all outstanding queued commands to complete to this
1402          * specific target (block).
1403          */
1404         spin_lock_irqsave(&sdev->list_lock, flags);
1405         list_for_each_entry(cmd, &sdev->cmd_list, list)
1406                 if (cmd != scsicmd && cmd->SCp.phase == AAC_OWNER_FIRMWARE) {
1407                         ++active;
1408                         break;
1409                 }
1410
1411         spin_unlock_irqrestore(&sdev->list_lock, flags);
1412
1413         /*
1414          *      Yield the processor (requeue for later)
1415          */
1416         if (active)
1417                 return SCSI_MLQUEUE_DEVICE_BUSY;
1418
1419         aac = (struct aac_dev *)scsicmd->device->host->hostdata;
1420         /*
1421          *      Allocate and initialize a Fib
1422          */
1423         if (!(cmd_fibcontext = aac_fib_alloc(aac)))
1424                 return SCSI_MLQUEUE_HOST_BUSY;
1425
1426         aac_fib_init(cmd_fibcontext);
1427
1428         synchronizecmd = fib_data(cmd_fibcontext);
1429         synchronizecmd->command = cpu_to_le32(VM_ContainerConfig);
1430         synchronizecmd->type = cpu_to_le32(CT_FLUSH_CACHE);
1431         synchronizecmd->cid = cpu_to_le32(cid);
1432         synchronizecmd->count =
1433              cpu_to_le32(sizeof(((struct aac_synchronize_reply *)NULL)->data));
1434
1435         /*
1436          *      Now send the Fib to the adapter
1437          */
1438         status = aac_fib_send(ContainerCommand,
1439                   cmd_fibcontext,
1440                   sizeof(struct aac_synchronize),
1441                   FsaNormal,
1442                   0, 1,
1443                   (fib_callback)synchronize_callback,
1444                   (void *)scsicmd);
1445
1446         /*
1447          *      Check that the command queued to the controller
1448          */
1449         if (status == -EINPROGRESS) {
1450                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
1451                 return 0;
1452         }
1453
1454         printk(KERN_WARNING
1455                 "aac_synchronize: aac_fib_send failed with status: %d.\n", status);
1456         aac_fib_complete(cmd_fibcontext);
1457         aac_fib_free(cmd_fibcontext);
1458         return SCSI_MLQUEUE_HOST_BUSY;
1459 }
1460
1461 /**
1462  *      aac_scsi_cmd()          -       Process SCSI command
1463  *      @scsicmd:               SCSI command block
1464  *
1465  *      Emulate a SCSI command and queue the required request for the
1466  *      aacraid firmware.
1467  */
1468
1469 int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
1470 {
1471         u32 cid = 0;
1472         struct Scsi_Host *host = scsicmd->device->host;
1473         struct aac_dev *dev = (struct aac_dev *)host->hostdata;
1474         struct fsa_dev_info *fsa_dev_ptr = dev->fsa_dev;
1475
1476         if (fsa_dev_ptr == NULL)
1477                 return -1;
1478         /*
1479          *      If the bus, id or lun is out of range, return fail
1480          *      Test does not apply to ID 16, the pseudo id for the controller
1481          *      itself.
1482          */
1483         if (scmd_id(scsicmd) != host->this_id) {
1484                 if ((scmd_channel(scsicmd) == CONTAINER_CHANNEL)) {
1485                         if((scmd_id(scsicmd) >= dev->maximum_num_containers) ||
1486                                         (scsicmd->device->lun != 0)) {
1487                                 scsicmd->result = DID_NO_CONNECT << 16;
1488                                 scsicmd->scsi_done(scsicmd);
1489                                 return 0;
1490                         }
1491                         cid = scmd_id(scsicmd);
1492
1493                         /*
1494                          *      If the target container doesn't exist, it may have
1495                          *      been newly created
1496                          */
1497                         if ((fsa_dev_ptr[cid].valid & 1) == 0) {
1498                                 switch (scsicmd->cmnd[0]) {
1499                                 case SERVICE_ACTION_IN:
1500                                         if (!(dev->raw_io_interface) ||
1501                                             !(dev->raw_io_64) ||
1502                                             ((scsicmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16))
1503                                                 break;
1504                                 case INQUIRY:
1505                                 case READ_CAPACITY:
1506                                 case TEST_UNIT_READY:
1507                                         spin_unlock_irq(host->host_lock);
1508                                         aac_probe_container(dev, cid);
1509                                         if ((fsa_dev_ptr[cid].valid & 1) == 0)
1510                                                 fsa_dev_ptr[cid].valid = 0;
1511                                         spin_lock_irq(host->host_lock);
1512                                         if (fsa_dev_ptr[cid].valid == 0) {
1513                                                 scsicmd->result = DID_NO_CONNECT << 16;
1514                                                 scsicmd->scsi_done(scsicmd);
1515                                                 return 0;
1516                                         }
1517                                 default:
1518                                         break;
1519                                 }
1520                         }
1521                         /*
1522                          *      If the target container still doesn't exist,
1523                          *      return failure
1524                          */
1525                         if (fsa_dev_ptr[cid].valid == 0) {
1526                                 scsicmd->result = DID_BAD_TARGET << 16;
1527                                 scsicmd->scsi_done(scsicmd);
1528                                 return 0;
1529                         }
1530                 } else {  /* check for physical non-dasd devices */
1531                         if(dev->nondasd_support == 1){
1532                                 return aac_send_srb_fib(scsicmd);
1533                         } else {
1534                                 scsicmd->result = DID_NO_CONNECT << 16;
1535                                 scsicmd->scsi_done(scsicmd);
1536                                 return 0;
1537                         }
1538                 }
1539         }
1540         /*
1541          * else Command for the controller itself
1542          */
1543         else if ((scsicmd->cmnd[0] != INQUIRY) &&       /* only INQUIRY & TUR cmnd supported for controller */
1544                 (scsicmd->cmnd[0] != TEST_UNIT_READY))
1545         {
1546                 dprintk((KERN_WARNING "Only INQUIRY & TUR command supported for controller, rcvd = 0x%x.\n", scsicmd->cmnd[0]));
1547                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1548                 set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
1549                             ILLEGAL_REQUEST,
1550                             SENCODE_INVALID_COMMAND,
1551                             ASENCODE_INVALID_COMMAND, 0, 0, 0, 0);
1552                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1553                   (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
1554                     ? sizeof(scsicmd->sense_buffer)
1555                     : sizeof(dev->fsa_dev[cid].sense_data));
1556                 scsicmd->scsi_done(scsicmd);
1557                 return 0;
1558         }
1559
1560
1561         /* Handle commands here that don't really require going out to the adapter */
1562         switch (scsicmd->cmnd[0]) {
1563         case INQUIRY:
1564         {
1565                 struct inquiry_data inq_data;
1566
1567                 dprintk((KERN_DEBUG "INQUIRY command, ID: %d.\n", scmd_id(scsicmd)));
1568                 memset(&inq_data, 0, sizeof (struct inquiry_data));
1569
1570                 inq_data.inqd_ver = 2;  /* claim compliance to SCSI-2 */
1571                 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 */
1572                 inq_data.inqd_len = 31;
1573                 /*Format for "pad2" is  RelAdr | WBus32 | WBus16 |  Sync  | Linked |Reserved| CmdQue | SftRe */
1574                 inq_data.inqd_pad2= 0x32 ;       /*WBus16|Sync|CmdQue */
1575                 /*
1576                  *      Set the Vendor, Product, and Revision Level
1577                  *      see: <vendor>.c i.e. aac.c
1578                  */
1579                 if (scmd_id(scsicmd) == host->this_id) {
1580                         setinqstr(dev, (void *) (inq_data.inqd_vid), ARRAY_SIZE(container_types));
1581                         inq_data.inqd_pdt = INQD_PDT_PROC;      /* Processor device */
1582                         aac_internal_transfer(scsicmd, &inq_data, 0, sizeof(inq_data));
1583                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1584                         scsicmd->scsi_done(scsicmd);
1585                         return 0;
1586                 }
1587                 setinqstr(dev, (void *) (inq_data.inqd_vid), fsa_dev_ptr[cid].type);
1588                 inq_data.inqd_pdt = INQD_PDT_DA;        /* Direct/random access device */
1589                 aac_internal_transfer(scsicmd, &inq_data, 0, sizeof(inq_data));
1590                 return aac_get_container_name(scsicmd, cid);
1591         }
1592         case SERVICE_ACTION_IN:
1593                 if (!(dev->raw_io_interface) ||
1594                     !(dev->raw_io_64) ||
1595                     ((scsicmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16))
1596                         break;
1597         {
1598                 u64 capacity;
1599                 char cp[13];
1600
1601                 dprintk((KERN_DEBUG "READ CAPACITY_16 command.\n"));
1602                 capacity = fsa_dev_ptr[cid].size - 1;
1603                 cp[0] = (capacity >> 56) & 0xff;
1604                 cp[1] = (capacity >> 48) & 0xff;
1605                 cp[2] = (capacity >> 40) & 0xff;
1606                 cp[3] = (capacity >> 32) & 0xff;
1607                 cp[4] = (capacity >> 24) & 0xff;
1608                 cp[5] = (capacity >> 16) & 0xff;
1609                 cp[6] = (capacity >> 8) & 0xff;
1610                 cp[7] = (capacity >> 0) & 0xff;
1611                 cp[8] = 0;
1612                 cp[9] = 0;
1613                 cp[10] = 2;
1614                 cp[11] = 0;
1615                 cp[12] = 0;
1616                 aac_internal_transfer(scsicmd, cp, 0,
1617                   min_t(size_t, scsicmd->cmnd[13], sizeof(cp)));
1618                 if (sizeof(cp) < scsicmd->cmnd[13]) {
1619                         unsigned int len, offset = sizeof(cp);
1620
1621                         memset(cp, 0, offset);
1622                         do {
1623                                 len = min_t(size_t, scsicmd->cmnd[13] - offset,
1624                                                 sizeof(cp));
1625                                 aac_internal_transfer(scsicmd, cp, offset, len);
1626                         } while ((offset += len) < scsicmd->cmnd[13]);
1627                 }
1628
1629                 /* Do not cache partition table for arrays */
1630                 scsicmd->device->removable = 1;
1631
1632                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1633                 scsicmd->scsi_done(scsicmd);
1634
1635                 return 0;
1636         }
1637
1638         case READ_CAPACITY:
1639         {
1640                 u32 capacity;
1641                 char cp[8];
1642
1643                 dprintk((KERN_DEBUG "READ CAPACITY command.\n"));
1644                 if (fsa_dev_ptr[cid].size <= 0x100000000ULL)
1645                         capacity = fsa_dev_ptr[cid].size - 1;
1646                 else
1647                         capacity = (u32)-1;
1648
1649                 cp[0] = (capacity >> 24) & 0xff;
1650                 cp[1] = (capacity >> 16) & 0xff;
1651                 cp[2] = (capacity >> 8) & 0xff;
1652                 cp[3] = (capacity >> 0) & 0xff;
1653                 cp[4] = 0;
1654                 cp[5] = 0;
1655                 cp[6] = 2;
1656                 cp[7] = 0;
1657                 aac_internal_transfer(scsicmd, cp, 0, sizeof(cp));
1658                 /* Do not cache partition table for arrays */
1659                 scsicmd->device->removable = 1;
1660
1661                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1662                 scsicmd->scsi_done(scsicmd);
1663
1664                 return 0;
1665         }
1666
1667         case MODE_SENSE:
1668         {
1669                 char mode_buf[4];
1670
1671                 dprintk((KERN_DEBUG "MODE SENSE command.\n"));
1672                 mode_buf[0] = 3;        /* Mode data length */
1673                 mode_buf[1] = 0;        /* Medium type - default */
1674                 mode_buf[2] = 0;        /* Device-specific param, bit 8: 0/1 = write enabled/protected */
1675                 mode_buf[3] = 0;        /* Block descriptor length */
1676
1677                 aac_internal_transfer(scsicmd, mode_buf, 0, sizeof(mode_buf));
1678                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1679                 scsicmd->scsi_done(scsicmd);
1680
1681                 return 0;
1682         }
1683         case MODE_SENSE_10:
1684         {
1685                 char mode_buf[8];
1686
1687                 dprintk((KERN_DEBUG "MODE SENSE 10 byte command.\n"));
1688                 mode_buf[0] = 0;        /* Mode data length (MSB) */
1689                 mode_buf[1] = 6;        /* Mode data length (LSB) */
1690                 mode_buf[2] = 0;        /* Medium type - default */
1691                 mode_buf[3] = 0;        /* Device-specific param, bit 8: 0/1 = write enabled/protected */
1692                 mode_buf[4] = 0;        /* reserved */
1693                 mode_buf[5] = 0;        /* reserved */
1694                 mode_buf[6] = 0;        /* Block descriptor length (MSB) */
1695                 mode_buf[7] = 0;        /* Block descriptor length (LSB) */
1696                 aac_internal_transfer(scsicmd, mode_buf, 0, sizeof(mode_buf));
1697
1698                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1699                 scsicmd->scsi_done(scsicmd);
1700
1701                 return 0;
1702         }
1703         case REQUEST_SENSE:
1704                 dprintk((KERN_DEBUG "REQUEST SENSE command.\n"));
1705                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data, sizeof (struct sense_data));
1706                 memset(&dev->fsa_dev[cid].sense_data, 0, sizeof (struct sense_data));
1707                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1708                 scsicmd->scsi_done(scsicmd);
1709                 return 0;
1710
1711         case ALLOW_MEDIUM_REMOVAL:
1712                 dprintk((KERN_DEBUG "LOCK command.\n"));
1713                 if (scsicmd->cmnd[4])
1714                         fsa_dev_ptr[cid].locked = 1;
1715                 else
1716                         fsa_dev_ptr[cid].locked = 0;
1717
1718                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1719                 scsicmd->scsi_done(scsicmd);
1720                 return 0;
1721         /*
1722          *      These commands are all No-Ops
1723          */
1724         case TEST_UNIT_READY:
1725         case RESERVE:
1726         case RELEASE:
1727         case REZERO_UNIT:
1728         case REASSIGN_BLOCKS:
1729         case SEEK_10:
1730         case START_STOP:
1731                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1732                 scsicmd->scsi_done(scsicmd);
1733                 return 0;
1734         }
1735
1736         switch (scsicmd->cmnd[0])
1737         {
1738                 case READ_6:
1739                 case READ_10:
1740                 case READ_12:
1741                 case READ_16:
1742                         /*
1743                          *      Hack to keep track of ordinal number of the device that
1744                          *      corresponds to a container. Needed to convert
1745                          *      containers to /dev/sd device names
1746                          */
1747
1748                         if (scsicmd->request->rq_disk)
1749                                 strlcpy(fsa_dev_ptr[cid].devname,
1750                                 scsicmd->request->rq_disk->disk_name,
1751                                 min(sizeof(fsa_dev_ptr[cid].devname),
1752                                 sizeof(scsicmd->request->rq_disk->disk_name) + 1));
1753
1754                         return aac_read(scsicmd, cid);
1755
1756                 case WRITE_6:
1757                 case WRITE_10:
1758                 case WRITE_12:
1759                 case WRITE_16:
1760                         return aac_write(scsicmd, cid);
1761
1762                 case SYNCHRONIZE_CACHE:
1763                         /* Issue FIB to tell Firmware to flush it's cache */
1764                         return aac_synchronize(scsicmd, cid);
1765
1766                 default:
1767                         /*
1768                          *      Unhandled commands
1769                          */
1770                         dprintk((KERN_WARNING "Unhandled SCSI Command: 0x%x.\n", scsicmd->cmnd[0]));
1771                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1772                         set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
1773                                 ILLEGAL_REQUEST, SENCODE_INVALID_COMMAND,
1774                                 ASENCODE_INVALID_COMMAND, 0, 0, 0, 0);
1775                         memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1776                           (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
1777                             ? sizeof(scsicmd->sense_buffer)
1778                             : sizeof(dev->fsa_dev[cid].sense_data));
1779                         scsicmd->scsi_done(scsicmd);
1780                         return 0;
1781         }
1782 }
1783
1784 static int query_disk(struct aac_dev *dev, void __user *arg)
1785 {
1786         struct aac_query_disk qd;
1787         struct fsa_dev_info *fsa_dev_ptr;
1788
1789         fsa_dev_ptr = dev->fsa_dev;
1790         if (!fsa_dev_ptr)
1791                 return -ENODEV;
1792         if (copy_from_user(&qd, arg, sizeof (struct aac_query_disk)))
1793                 return -EFAULT;
1794         if (qd.cnum == -1)
1795                 qd.cnum = qd.id;
1796         else if ((qd.bus == -1) && (qd.id == -1) && (qd.lun == -1))
1797         {
1798                 if (qd.cnum < 0 || qd.cnum >= dev->maximum_num_containers)
1799                         return -EINVAL;
1800                 qd.instance = dev->scsi_host_ptr->host_no;
1801                 qd.bus = 0;
1802                 qd.id = CONTAINER_TO_ID(qd.cnum);
1803                 qd.lun = CONTAINER_TO_LUN(qd.cnum);
1804         }
1805         else return -EINVAL;
1806
1807         qd.valid = fsa_dev_ptr[qd.cnum].valid;
1808         qd.locked = fsa_dev_ptr[qd.cnum].locked;
1809         qd.deleted = fsa_dev_ptr[qd.cnum].deleted;
1810
1811         if (fsa_dev_ptr[qd.cnum].devname[0] == '\0')
1812                 qd.unmapped = 1;
1813         else
1814                 qd.unmapped = 0;
1815
1816         strlcpy(qd.name, fsa_dev_ptr[qd.cnum].devname,
1817           min(sizeof(qd.name), sizeof(fsa_dev_ptr[qd.cnum].devname) + 1));
1818
1819         if (copy_to_user(arg, &qd, sizeof (struct aac_query_disk)))
1820                 return -EFAULT;
1821         return 0;
1822 }
1823
1824 static int force_delete_disk(struct aac_dev *dev, void __user *arg)
1825 {
1826         struct aac_delete_disk dd;
1827         struct fsa_dev_info *fsa_dev_ptr;
1828
1829         fsa_dev_ptr = dev->fsa_dev;
1830
1831         if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
1832                 return -EFAULT;
1833
1834         if (dd.cnum >= dev->maximum_num_containers)
1835                 return -EINVAL;
1836         /*
1837          *      Mark this container as being deleted.
1838          */
1839         fsa_dev_ptr[dd.cnum].deleted = 1;
1840         /*
1841          *      Mark the container as no longer valid
1842          */
1843         fsa_dev_ptr[dd.cnum].valid = 0;
1844         return 0;
1845 }
1846
1847 static int delete_disk(struct aac_dev *dev, void __user *arg)
1848 {
1849         struct aac_delete_disk dd;
1850         struct fsa_dev_info *fsa_dev_ptr;
1851
1852         fsa_dev_ptr = dev->fsa_dev;
1853         if (!fsa_dev_ptr)
1854                 return -ENODEV;
1855         if (!fsa_dev_ptr)
1856                 return -ENODEV;
1857
1858         if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
1859                 return -EFAULT;
1860
1861         if (dd.cnum >= dev->maximum_num_containers)
1862                 return -EINVAL;
1863         /*
1864          *      If the container is locked, it can not be deleted by the API.
1865          */
1866         if (fsa_dev_ptr[dd.cnum].locked)
1867                 return -EBUSY;
1868         else {
1869                 /*
1870                  *      Mark the container as no longer being valid.
1871                  */
1872                 fsa_dev_ptr[dd.cnum].valid = 0;
1873                 fsa_dev_ptr[dd.cnum].devname[0] = '\0';
1874                 return 0;
1875         }
1876 }
1877
1878 int aac_dev_ioctl(struct aac_dev *dev, int cmd, void __user *arg)
1879 {
1880         switch (cmd) {
1881         case FSACTL_QUERY_DISK:
1882                 return query_disk(dev, arg);
1883         case FSACTL_DELETE_DISK:
1884                 return delete_disk(dev, arg);
1885         case FSACTL_FORCE_DELETE_DISK:
1886                 return force_delete_disk(dev, arg);
1887         case FSACTL_GET_CONTAINERS:
1888                 return aac_get_containers(dev);
1889         default:
1890                 return -ENOTTY;
1891         }
1892 }
1893
1894 /**
1895  *
1896  * aac_srb_callback
1897  * @context: the context set in the fib - here it is scsi cmd
1898  * @fibptr: pointer to the fib
1899  *
1900  * Handles the completion of a scsi command to a non dasd device
1901  *
1902  */
1903
1904 static void aac_srb_callback(void *context, struct fib * fibptr)
1905 {
1906         struct aac_dev *dev;
1907         struct aac_srb_reply *srbreply;
1908         struct scsi_cmnd *scsicmd;
1909
1910         scsicmd = (struct scsi_cmnd *) context;
1911         scsicmd->SCp.phase = AAC_OWNER_MIDLEVEL;
1912         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1913
1914         BUG_ON(fibptr == NULL);
1915
1916         srbreply = (struct aac_srb_reply *) fib_data(fibptr);
1917
1918         scsicmd->sense_buffer[0] = '\0';  /* Initialize sense valid flag to false */
1919         /*
1920          *      Calculate resid for sg
1921          */
1922
1923         scsicmd->resid = scsicmd->request_bufflen -
1924                 le32_to_cpu(srbreply->data_xfer_length);
1925
1926         if(scsicmd->use_sg)
1927                 pci_unmap_sg(dev->pdev,
1928                         (struct scatterlist *)scsicmd->request_buffer,
1929                         scsicmd->use_sg,
1930                         scsicmd->sc_data_direction);
1931         else if(scsicmd->request_bufflen)
1932                 pci_unmap_single(dev->pdev, scsicmd->SCp.dma_handle, scsicmd->request_bufflen,
1933                         scsicmd->sc_data_direction);
1934
1935         /*
1936          * First check the fib status
1937          */
1938
1939         if (le32_to_cpu(srbreply->status) != ST_OK){
1940                 int len;
1941                 printk(KERN_WARNING "aac_srb_callback: srb failed, status = %d\n", le32_to_cpu(srbreply->status));
1942                 len = (le32_to_cpu(srbreply->sense_data_size) >
1943                                 sizeof(scsicmd->sense_buffer)) ?
1944                                 sizeof(scsicmd->sense_buffer) :
1945                                 le32_to_cpu(srbreply->sense_data_size);
1946                 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1947                 memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
1948         }
1949
1950         /*
1951          * Next check the srb status
1952          */
1953         switch( (le32_to_cpu(srbreply->srb_status))&0x3f){
1954         case SRB_STATUS_ERROR_RECOVERY:
1955         case SRB_STATUS_PENDING:
1956         case SRB_STATUS_SUCCESS:
1957                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
1958                 break;
1959         case SRB_STATUS_DATA_OVERRUN:
1960                 switch(scsicmd->cmnd[0]){
1961                 case  READ_6:
1962                 case  WRITE_6:
1963                 case  READ_10:
1964                 case  WRITE_10:
1965                 case  READ_12:
1966                 case  WRITE_12:
1967                 case  READ_16:
1968                 case  WRITE_16:
1969                         if(le32_to_cpu(srbreply->data_xfer_length) < scsicmd->underflow ) {
1970                                 printk(KERN_WARNING"aacraid: SCSI CMD underflow\n");
1971                         } else {
1972                                 printk(KERN_WARNING"aacraid: SCSI CMD Data Overrun\n");
1973                         }
1974                         scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
1975                         break;
1976                 case INQUIRY: {
1977                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
1978                         break;
1979                 }
1980                 default:
1981                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
1982                         break;
1983                 }
1984                 break;
1985         case SRB_STATUS_ABORTED:
1986                 scsicmd->result = DID_ABORT << 16 | ABORT << 8;
1987                 break;
1988         case SRB_STATUS_ABORT_FAILED:
1989                 // Not sure about this one - but assuming the hba was trying to abort for some reason
1990                 scsicmd->result = DID_ERROR << 16 | ABORT << 8;
1991                 break;
1992         case SRB_STATUS_PARITY_ERROR:
1993                 scsicmd->result = DID_PARITY << 16 | MSG_PARITY_ERROR << 8;
1994                 break;
1995         case SRB_STATUS_NO_DEVICE:
1996         case SRB_STATUS_INVALID_PATH_ID:
1997         case SRB_STATUS_INVALID_TARGET_ID:
1998         case SRB_STATUS_INVALID_LUN:
1999         case SRB_STATUS_SELECTION_TIMEOUT:
2000                 scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8;
2001                 break;
2002
2003         case SRB_STATUS_COMMAND_TIMEOUT:
2004         case SRB_STATUS_TIMEOUT:
2005                 scsicmd->result = DID_TIME_OUT << 16 | COMMAND_COMPLETE << 8;
2006                 break;
2007
2008         case SRB_STATUS_BUSY:
2009                 scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8;
2010                 break;
2011
2012         case SRB_STATUS_BUS_RESET:
2013                 scsicmd->result = DID_RESET << 16 | COMMAND_COMPLETE << 8;
2014                 break;
2015
2016         case SRB_STATUS_MESSAGE_REJECTED:
2017                 scsicmd->result = DID_ERROR << 16 | MESSAGE_REJECT << 8;
2018                 break;
2019         case SRB_STATUS_REQUEST_FLUSHED:
2020         case SRB_STATUS_ERROR:
2021         case SRB_STATUS_INVALID_REQUEST:
2022         case SRB_STATUS_REQUEST_SENSE_FAILED:
2023         case SRB_STATUS_NO_HBA:
2024         case SRB_STATUS_UNEXPECTED_BUS_FREE:
2025         case SRB_STATUS_PHASE_SEQUENCE_FAILURE:
2026         case SRB_STATUS_BAD_SRB_BLOCK_LENGTH:
2027         case SRB_STATUS_DELAYED_RETRY:
2028         case SRB_STATUS_BAD_FUNCTION:
2029         case SRB_STATUS_NOT_STARTED:
2030         case SRB_STATUS_NOT_IN_USE:
2031         case SRB_STATUS_FORCE_ABORT:
2032         case SRB_STATUS_DOMAIN_VALIDATION_FAIL:
2033         default:
2034 #ifdef AAC_DETAILED_STATUS_INFO
2035                 printk("aacraid: SRB ERROR(%u) %s scsi cmd 0x%x - scsi status 0x%x\n",
2036                         le32_to_cpu(srbreply->srb_status) & 0x3F,
2037                         aac_get_status_string(
2038                                 le32_to_cpu(srbreply->srb_status) & 0x3F),
2039                         scsicmd->cmnd[0],
2040                         le32_to_cpu(srbreply->scsi_status));
2041 #endif
2042                 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
2043                 break;
2044         }
2045         if (le32_to_cpu(srbreply->scsi_status) == 0x02 ){  // Check Condition
2046                 int len;
2047                 scsicmd->result |= SAM_STAT_CHECK_CONDITION;
2048                 len = (le32_to_cpu(srbreply->sense_data_size) >
2049                                 sizeof(scsicmd->sense_buffer)) ?
2050                                 sizeof(scsicmd->sense_buffer) :
2051                                 le32_to_cpu(srbreply->sense_data_size);
2052 #ifdef AAC_DETAILED_STATUS_INFO
2053                 printk(KERN_WARNING "aac_srb_callback: check condition, status = %d len=%d\n",
2054                                         le32_to_cpu(srbreply->status), len);
2055 #endif
2056                 memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
2057
2058         }
2059         /*
2060          * OR in the scsi status (already shifted up a bit)
2061          */
2062         scsicmd->result |= le32_to_cpu(srbreply->scsi_status);
2063
2064         aac_fib_complete(fibptr);
2065         aac_fib_free(fibptr);
2066         scsicmd->scsi_done(scsicmd);
2067 }
2068
2069 /**
2070  *
2071  * aac_send_scb_fib
2072  * @scsicmd: the scsi command block
2073  *
2074  * This routine will form a FIB and fill in the aac_srb from the
2075  * scsicmd passed in.
2076  */
2077
2078 static int aac_send_srb_fib(struct scsi_cmnd* scsicmd)
2079 {
2080         struct fib* cmd_fibcontext;
2081         struct aac_dev* dev;
2082         int status;
2083         struct aac_srb *srbcmd;
2084         u16 fibsize;
2085         u32 flag;
2086         u32 timeout;
2087
2088         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2089         if (scmd_id(scsicmd) >= dev->maximum_num_physicals ||
2090                         scsicmd->device->lun > 7) {
2091                 scsicmd->result = DID_NO_CONNECT << 16;
2092                 scsicmd->scsi_done(scsicmd);
2093                 return 0;
2094         }
2095
2096         switch(scsicmd->sc_data_direction){
2097         case DMA_TO_DEVICE:
2098                 flag = SRB_DataOut;
2099                 break;
2100         case DMA_BIDIRECTIONAL:
2101                 flag = SRB_DataIn | SRB_DataOut;
2102                 break;
2103         case DMA_FROM_DEVICE:
2104                 flag = SRB_DataIn;
2105                 break;
2106         case DMA_NONE:
2107         default:        /* shuts up some versions of gcc */
2108                 flag = SRB_NoDataXfer;
2109                 break;
2110         }
2111
2112
2113         /*
2114          *      Allocate and initialize a Fib then setup a BlockWrite command
2115          */
2116         if (!(cmd_fibcontext = aac_fib_alloc(dev))) {
2117                 return -1;
2118         }
2119         aac_fib_init(cmd_fibcontext);
2120
2121         srbcmd = (struct aac_srb*) fib_data(cmd_fibcontext);
2122         srbcmd->function = cpu_to_le32(SRBF_ExecuteScsi);
2123         srbcmd->channel  = cpu_to_le32(aac_logical_to_phys(scmd_channel(scsicmd)));
2124         srbcmd->id   = cpu_to_le32(scmd_id(scsicmd));
2125         srbcmd->lun      = cpu_to_le32(scsicmd->device->lun);
2126         srbcmd->flags    = cpu_to_le32(flag);
2127         timeout = scsicmd->timeout_per_command/HZ;
2128         if(timeout == 0){
2129                 timeout = 1;
2130         }
2131         srbcmd->timeout  = cpu_to_le32(timeout);  // timeout in seconds
2132         srbcmd->retry_limit = 0; /* Obsolete parameter */
2133         srbcmd->cdb_size = cpu_to_le32(scsicmd->cmd_len);
2134
2135         if( dev->dac_support == 1 ) {
2136                 aac_build_sg64(scsicmd, (struct sgmap64*) &srbcmd->sg);
2137                 srbcmd->count = cpu_to_le32(scsicmd->request_bufflen);
2138
2139                 memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
2140                 memcpy(srbcmd->cdb, scsicmd->cmnd, scsicmd->cmd_len);
2141                 /*
2142                  *      Build Scatter/Gather list
2143                  */
2144                 fibsize = sizeof (struct aac_srb) - sizeof (struct sgentry) +
2145                         ((le32_to_cpu(srbcmd->sg.count) & 0xff) *
2146                          sizeof (struct sgentry64));
2147                 BUG_ON (fibsize > (dev->max_fib_size -
2148                                         sizeof(struct aac_fibhdr)));
2149
2150                 /*
2151                  *      Now send the Fib to the adapter
2152                  */
2153                 status = aac_fib_send(ScsiPortCommand64, cmd_fibcontext,
2154                                 fibsize, FsaNormal, 0, 1,
2155                                   (fib_callback) aac_srb_callback,
2156                                   (void *) scsicmd);
2157         } else {
2158                 aac_build_sg(scsicmd, (struct sgmap*)&srbcmd->sg);
2159                 srbcmd->count = cpu_to_le32(scsicmd->request_bufflen);
2160
2161                 memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
2162                 memcpy(srbcmd->cdb, scsicmd->cmnd, scsicmd->cmd_len);
2163                 /*
2164                  *      Build Scatter/Gather list
2165                  */
2166                 fibsize = sizeof (struct aac_srb) +
2167                         (((le32_to_cpu(srbcmd->sg.count) & 0xff) - 1) *
2168                          sizeof (struct sgentry));
2169                 BUG_ON (fibsize > (dev->max_fib_size -
2170                                         sizeof(struct aac_fibhdr)));
2171
2172                 /*
2173                  *      Now send the Fib to the adapter
2174                  */
2175                 status = aac_fib_send(ScsiPortCommand, cmd_fibcontext, fibsize, FsaNormal, 0, 1,
2176                                   (fib_callback) aac_srb_callback, (void *) scsicmd);
2177         }
2178         /*
2179          *      Check that the command queued to the controller
2180          */
2181         if (status == -EINPROGRESS) {
2182                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
2183                 return 0;
2184         }
2185
2186         printk(KERN_WARNING "aac_srb: aac_fib_send failed with status: %d\n", status);
2187         aac_fib_complete(cmd_fibcontext);
2188         aac_fib_free(cmd_fibcontext);
2189
2190         return -1;
2191 }
2192
2193 static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* psg)
2194 {
2195         struct aac_dev *dev;
2196         unsigned long byte_count = 0;
2197
2198         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2199         // Get rid of old data
2200         psg->count = 0;
2201         psg->sg[0].addr = 0;
2202         psg->sg[0].count = 0;
2203         if (scsicmd->use_sg) {
2204                 struct scatterlist *sg;
2205                 int i;
2206                 int sg_count;
2207                 sg = (struct scatterlist *) scsicmd->request_buffer;
2208
2209                 sg_count = pci_map_sg(dev->pdev, sg, scsicmd->use_sg,
2210                         scsicmd->sc_data_direction);
2211                 psg->count = cpu_to_le32(sg_count);
2212
2213                 for (i = 0; i < sg_count; i++) {
2214                         psg->sg[i].addr = cpu_to_le32(sg_dma_address(sg));
2215                         psg->sg[i].count = cpu_to_le32(sg_dma_len(sg));
2216                         byte_count += sg_dma_len(sg);
2217                         sg++;
2218                 }
2219                 /* hba wants the size to be exact */
2220                 if(byte_count > scsicmd->request_bufflen){
2221                         u32 temp = le32_to_cpu(psg->sg[i-1].count) -
2222                                 (byte_count - scsicmd->request_bufflen);
2223                         psg->sg[i-1].count = cpu_to_le32(temp);
2224                         byte_count = scsicmd->request_bufflen;
2225                 }
2226                 /* Check for command underflow */
2227                 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2228                         printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2229                                         byte_count, scsicmd->underflow);
2230                 }
2231         }
2232         else if(scsicmd->request_bufflen) {
2233                 u32 addr;
2234                 scsicmd->SCp.dma_handle = pci_map_single(dev->pdev,
2235                                 scsicmd->request_buffer,
2236                                 scsicmd->request_bufflen,
2237                                 scsicmd->sc_data_direction);
2238                 addr = scsicmd->SCp.dma_handle;
2239                 psg->count = cpu_to_le32(1);
2240                 psg->sg[0].addr = cpu_to_le32(addr);
2241                 psg->sg[0].count = cpu_to_le32(scsicmd->request_bufflen);
2242                 byte_count = scsicmd->request_bufflen;
2243         }
2244         return byte_count;
2245 }
2246
2247
2248 static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* psg)
2249 {
2250         struct aac_dev *dev;
2251         unsigned long byte_count = 0;
2252         u64 addr;
2253
2254         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2255         // Get rid of old data
2256         psg->count = 0;
2257         psg->sg[0].addr[0] = 0;
2258         psg->sg[0].addr[1] = 0;
2259         psg->sg[0].count = 0;
2260         if (scsicmd->use_sg) {
2261                 struct scatterlist *sg;
2262                 int i;
2263                 int sg_count;
2264                 sg = (struct scatterlist *) scsicmd->request_buffer;
2265
2266                 sg_count = pci_map_sg(dev->pdev, sg, scsicmd->use_sg,
2267                         scsicmd->sc_data_direction);
2268
2269                 for (i = 0; i < sg_count; i++) {
2270                         int count = sg_dma_len(sg);
2271                         addr = sg_dma_address(sg);
2272                         psg->sg[i].addr[0] = cpu_to_le32(addr & 0xffffffff);
2273                         psg->sg[i].addr[1] = cpu_to_le32(addr>>32);
2274                         psg->sg[i].count = cpu_to_le32(count);
2275                         byte_count += count;
2276                         sg++;
2277                 }
2278                 psg->count = cpu_to_le32(sg_count);
2279                 /* hba wants the size to be exact */
2280                 if(byte_count > scsicmd->request_bufflen){
2281                         u32 temp = le32_to_cpu(psg->sg[i-1].count) -
2282                                 (byte_count - scsicmd->request_bufflen);
2283                         psg->sg[i-1].count = cpu_to_le32(temp);
2284                         byte_count = scsicmd->request_bufflen;
2285                 }
2286                 /* Check for command underflow */
2287                 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2288                         printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2289                                         byte_count, scsicmd->underflow);
2290                 }
2291         }
2292         else if(scsicmd->request_bufflen) {
2293                 scsicmd->SCp.dma_handle = pci_map_single(dev->pdev,
2294                                 scsicmd->request_buffer,
2295                                 scsicmd->request_bufflen,
2296                                 scsicmd->sc_data_direction);
2297                 addr = scsicmd->SCp.dma_handle;
2298                 psg->count = cpu_to_le32(1);
2299                 psg->sg[0].addr[0] = cpu_to_le32(addr & 0xffffffff);
2300                 psg->sg[0].addr[1] = cpu_to_le32(addr >> 32);
2301                 psg->sg[0].count = cpu_to_le32(scsicmd->request_bufflen);
2302                 byte_count = scsicmd->request_bufflen;
2303         }
2304         return byte_count;
2305 }
2306
2307 static unsigned long aac_build_sgraw(struct scsi_cmnd* scsicmd, struct sgmapraw* psg)
2308 {
2309         struct Scsi_Host *host = scsicmd->device->host;
2310         struct aac_dev *dev = (struct aac_dev *)host->hostdata;
2311         unsigned long byte_count = 0;
2312
2313         // Get rid of old data
2314         psg->count = 0;
2315         psg->sg[0].next = 0;
2316         psg->sg[0].prev = 0;
2317         psg->sg[0].addr[0] = 0;
2318         psg->sg[0].addr[1] = 0;
2319         psg->sg[0].count = 0;
2320         psg->sg[0].flags = 0;
2321         if (scsicmd->use_sg) {
2322                 struct scatterlist *sg;
2323                 int i;
2324                 int sg_count;
2325                 sg = (struct scatterlist *) scsicmd->request_buffer;
2326
2327                 sg_count = pci_map_sg(dev->pdev, sg, scsicmd->use_sg,
2328                         scsicmd->sc_data_direction);
2329
2330                 for (i = 0; i < sg_count; i++) {
2331                         int count = sg_dma_len(sg);
2332                         u64 addr = sg_dma_address(sg);
2333                         psg->sg[i].next = 0;
2334                         psg->sg[i].prev = 0;
2335                         psg->sg[i].addr[1] = cpu_to_le32((u32)(addr>>32));
2336                         psg->sg[i].addr[0] = cpu_to_le32((u32)(addr & 0xffffffff));
2337                         psg->sg[i].count = cpu_to_le32(count);
2338                         psg->sg[i].flags = 0;
2339                         byte_count += count;
2340                         sg++;
2341                 }
2342                 psg->count = cpu_to_le32(sg_count);
2343                 /* hba wants the size to be exact */
2344                 if(byte_count > scsicmd->request_bufflen){
2345                         u32 temp = le32_to_cpu(psg->sg[i-1].count) -
2346                                 (byte_count - scsicmd->request_bufflen);
2347                         psg->sg[i-1].count = cpu_to_le32(temp);
2348                         byte_count = scsicmd->request_bufflen;
2349                 }
2350                 /* Check for command underflow */
2351                 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2352                         printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2353                                         byte_count, scsicmd->underflow);
2354                 }
2355         }
2356         else if(scsicmd->request_bufflen) {
2357                 int count;
2358                 u64 addr;
2359                 scsicmd->SCp.dma_handle = pci_map_single(dev->pdev,
2360                                 scsicmd->request_buffer,
2361                                 scsicmd->request_bufflen,
2362                                 scsicmd->sc_data_direction);
2363                 addr = scsicmd->SCp.dma_handle;
2364                 count = scsicmd->request_bufflen;
2365                 psg->count = cpu_to_le32(1);
2366                 psg->sg[0].next = 0;
2367                 psg->sg[0].prev = 0;
2368                 psg->sg[0].addr[1] = cpu_to_le32((u32)(addr>>32));
2369                 psg->sg[0].addr[0] = cpu_to_le32((u32)(addr & 0xffffffff));
2370                 psg->sg[0].count = cpu_to_le32(count);
2371                 psg->sg[0].flags = 0;
2372                 byte_count = scsicmd->request_bufflen;
2373         }
2374         return byte_count;
2375 }
2376
2377 #ifdef AAC_DETAILED_STATUS_INFO
2378
2379 struct aac_srb_status_info {
2380         u32     status;
2381         char    *str;
2382 };
2383
2384
2385 static struct aac_srb_status_info srb_status_info[] = {
2386         { SRB_STATUS_PENDING,           "Pending Status"},
2387         { SRB_STATUS_SUCCESS,           "Success"},
2388         { SRB_STATUS_ABORTED,           "Aborted Command"},
2389         { SRB_STATUS_ABORT_FAILED,      "Abort Failed"},
2390         { SRB_STATUS_ERROR,             "Error Event"},
2391         { SRB_STATUS_BUSY,              "Device Busy"},
2392         { SRB_STATUS_INVALID_REQUEST,   "Invalid Request"},
2393         { SRB_STATUS_INVALID_PATH_ID,   "Invalid Path ID"},
2394         { SRB_STATUS_NO_DEVICE,         "No Device"},
2395         { SRB_STATUS_TIMEOUT,           "Timeout"},
2396         { SRB_STATUS_SELECTION_TIMEOUT, "Selection Timeout"},
2397         { SRB_STATUS_COMMAND_TIMEOUT,   "Command Timeout"},
2398         { SRB_STATUS_MESSAGE_REJECTED,  "Message Rejected"},
2399         { SRB_STATUS_BUS_RESET,         "Bus Reset"},
2400         { SRB_STATUS_PARITY_ERROR,      "Parity Error"},
2401         { SRB_STATUS_REQUEST_SENSE_FAILED,"Request Sense Failed"},
2402         { SRB_STATUS_NO_HBA,            "No HBA"},
2403         { SRB_STATUS_DATA_OVERRUN,      "Data Overrun/Data Underrun"},
2404         { SRB_STATUS_UNEXPECTED_BUS_FREE,"Unexpected Bus Free"},
2405         { SRB_STATUS_PHASE_SEQUENCE_FAILURE,"Phase Error"},
2406         { SRB_STATUS_BAD_SRB_BLOCK_LENGTH,"Bad Srb Block Length"},
2407         { SRB_STATUS_REQUEST_FLUSHED,   "Request Flushed"},
2408         { SRB_STATUS_DELAYED_RETRY,     "Delayed Retry"},
2409         { SRB_STATUS_INVALID_LUN,       "Invalid LUN"},
2410         { SRB_STATUS_INVALID_TARGET_ID, "Invalid TARGET ID"},
2411         { SRB_STATUS_BAD_FUNCTION,      "Bad Function"},
2412         { SRB_STATUS_ERROR_RECOVERY,    "Error Recovery"},
2413         { SRB_STATUS_NOT_STARTED,       "Not Started"},
2414         { SRB_STATUS_NOT_IN_USE,        "Not In Use"},
2415         { SRB_STATUS_FORCE_ABORT,       "Force Abort"},
2416         { SRB_STATUS_DOMAIN_VALIDATION_FAIL,"Domain Validation Failure"},
2417         { 0xff,                         "Unknown Error"}
2418 };
2419
2420 char *aac_get_status_string(u32 status)
2421 {
2422         int i;
2423
2424         for (i = 0; i < ARRAY_SIZE(srb_status_info); i++)
2425                 if (srb_status_info[i].status == status)
2426                         return srb_status_info[i].str;
2427
2428         return "Bad Status Code";
2429 }
2430
2431 #endif