SAFE public projects git trees. - safe/jmp/linux-2.6/blob - drivers/scsi/aacraid/aachba.c

   1 /*
   2  *      Adaptec AAC series RAID controller driver
   3  *      (c) Copyright 2001 Red Hat Inc. <alan@redhat.com>
   4  *
   5  * based on the old aacraid driver that is..
   6  * Adaptec aacraid device driver for Linux.
   7  *
   8  * Copyright (c) 2000-2007 Adaptec, Inc. (aacraid@adaptec.com)
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2, or (at your option)
  13  * any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; see the file COPYING.  If not, write to
  22  * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
  23  *
  24  */
  25
  26 #include <linux/kernel.h>
  27 #include <linux/init.h>
  28 #include <linux/types.h>
  29 #include <linux/pci.h>
  30 #include <linux/spinlock.h>
  31 #include <linux/slab.h>
  32 #include <linux/completion.h>
  33 #include <linux/blkdev.h>
  34 #include <asm/semaphore.h>
  35 #include <asm/uaccess.h>
  36 #include <linux/highmem.h> /* For flush_kernel_dcache_page */
  37
  38 #include <scsi/scsi.h>
  39 #include <scsi/scsi_cmnd.h>
  40 #include <scsi/scsi_device.h>
  41 #include <scsi/scsi_host.h>
  42
  43 #include "aacraid.h"
  44
  45 /* values for inqd_pdt: Peripheral device type in plain English */
  46 #define INQD_PDT_DA     0x00    /* Direct-access (DISK) device */
  47 #define INQD_PDT_PROC   0x03    /* Processor device */
  48 #define INQD_PDT_CHNGR  0x08    /* Changer (jukebox, scsi2) */
  49 #define INQD_PDT_COMM   0x09    /* Communication device (scsi2) */
  50 #define INQD_PDT_NOLUN2 0x1f    /* Unknown Device (scsi2) */
  51 #define INQD_PDT_NOLUN  0x7f    /* Logical Unit Not Present */
  52
  53 #define INQD_PDT_DMASK  0x1F    /* Peripheral Device Type Mask */
  54 #define INQD_PDT_QMASK  0xE0    /* Peripheral Device Qualifer Mask */
  55
  56 /*
  57  *      Sense codes
  58  */
  59
  60 #define SENCODE_NO_SENSE                        0x00
  61 #define SENCODE_END_OF_DATA                     0x00
  62 #define SENCODE_BECOMING_READY                  0x04
  63 #define SENCODE_INIT_CMD_REQUIRED               0x04
  64 #define SENCODE_PARAM_LIST_LENGTH_ERROR         0x1A
  65 #define SENCODE_INVALID_COMMAND                 0x20
  66 #define SENCODE_LBA_OUT_OF_RANGE                0x21
  67 #define SENCODE_INVALID_CDB_FIELD               0x24
  68 #define SENCODE_LUN_NOT_SUPPORTED               0x25
  69 #define SENCODE_INVALID_PARAM_FIELD             0x26
  70 #define SENCODE_PARAM_NOT_SUPPORTED             0x26
  71 #define SENCODE_PARAM_VALUE_INVALID             0x26
  72 #define SENCODE_RESET_OCCURRED                  0x29
  73 #define SENCODE_LUN_NOT_SELF_CONFIGURED_YET     0x3E
  74 #define SENCODE_INQUIRY_DATA_CHANGED            0x3F
  75 #define SENCODE_SAVING_PARAMS_NOT_SUPPORTED     0x39
  76 #define SENCODE_DIAGNOSTIC_FAILURE              0x40
  77 #define SENCODE_INTERNAL_TARGET_FAILURE         0x44
  78 #define SENCODE_INVALID_MESSAGE_ERROR           0x49
  79 #define SENCODE_LUN_FAILED_SELF_CONFIG          0x4c
  80 #define SENCODE_OVERLAPPED_COMMAND              0x4E
  81
  82 /*
  83  *      Additional sense codes
  84  */
  85
  86 #define ASENCODE_NO_SENSE                       0x00
  87 #define ASENCODE_END_OF_DATA                    0x05
  88 #define ASENCODE_BECOMING_READY                 0x01
  89 #define ASENCODE_INIT_CMD_REQUIRED              0x02
  90 #define ASENCODE_PARAM_LIST_LENGTH_ERROR        0x00
  91 #define ASENCODE_INVALID_COMMAND                0x00
  92 #define ASENCODE_LBA_OUT_OF_RANGE               0x00
  93 #define ASENCODE_INVALID_CDB_FIELD              0x00
  94 #define ASENCODE_LUN_NOT_SUPPORTED              0x00
  95 #define ASENCODE_INVALID_PARAM_FIELD            0x00
  96 #define ASENCODE_PARAM_NOT_SUPPORTED            0x01
  97 #define ASENCODE_PARAM_VALUE_INVALID            0x02
  98 #define ASENCODE_RESET_OCCURRED                 0x00
  99 #define ASENCODE_LUN_NOT_SELF_CONFIGURED_YET    0x00
 100 #define ASENCODE_INQUIRY_DATA_CHANGED           0x03
 101 #define ASENCODE_SAVING_PARAMS_NOT_SUPPORTED    0x00
 102 #define ASENCODE_DIAGNOSTIC_FAILURE             0x80
 103 #define ASENCODE_INTERNAL_TARGET_FAILURE        0x00
 104 #define ASENCODE_INVALID_MESSAGE_ERROR          0x00
 105 #define ASENCODE_LUN_FAILED_SELF_CONFIG         0x00
 106 #define ASENCODE_OVERLAPPED_COMMAND             0x00
 107
 108 #define BYTE0(x) (unsigned char)(x)
 109 #define BYTE1(x) (unsigned char)((x) >> 8)
 110 #define BYTE2(x) (unsigned char)((x) >> 16)
 111 #define BYTE3(x) (unsigned char)((x) >> 24)
 112
 113 /*------------------------------------------------------------------------------
 114  *              S T R U C T S / T Y P E D E F S
 115  *----------------------------------------------------------------------------*/
 116 /* SCSI inquiry data */
 117 struct inquiry_data {
 118         u8 inqd_pdt;    /* Peripheral qualifier | Peripheral Device Type */
 119         u8 inqd_dtq;    /* RMB | Device Type Qualifier */
 120         u8 inqd_ver;    /* ISO version | ECMA version | ANSI-approved version */
 121         u8 inqd_rdf;    /* AENC | TrmIOP | Response data format */
 122         u8 inqd_len;    /* Additional length (n-4) */
 123         u8 inqd_pad1[2];/* Reserved - must be zero */
 124         u8 inqd_pad2;   /* RelAdr | WBus32 | WBus16 |  Sync  | Linked |Reserved| CmdQue | SftRe */
 125         u8 inqd_vid[8]; /* Vendor ID */
 126         u8 inqd_pid[16];/* Product ID */
 127         u8 inqd_prl[4]; /* Product Revision Level */
 128 };
 129
 130 /*
 131  *              M O D U L E   G L O B A L S
 132  */
 133
 134 static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* sgmap);
 135 static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* psg);
 136 static unsigned long aac_build_sgraw(struct scsi_cmnd* scsicmd, struct sgmapraw* psg);
 137 static int aac_send_srb_fib(struct scsi_cmnd* scsicmd);
 138 #ifdef AAC_DETAILED_STATUS_INFO
 139 static char *aac_get_status_string(u32 status);
 140 #endif
 141
 142 /*
 143  *      Non dasd selection is handled entirely in aachba now
 144  */
 145
 146 static int nondasd = -1;
 147 static int aac_cache;
 148 static int dacmode = -1;
 149 int aac_msi;
 150 int aac_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."
 156         " 0=off, 1=on");
 157 module_param_named(cache, aac_cache, int, S_IRUGO|S_IWUSR);
 158 MODULE_PARM_DESC(cache, "Disable Queue Flush commands:\n"
 159         "\tbit 0 - Disable FUA in WRITE SCSI commands\n"
 160         "\tbit 1 - Disable SYNCHRONIZE_CACHE SCSI command\n"
 161         "\tbit 2 - Disable only if Battery not protecting Cache");
 162 module_param(dacmode, int, S_IRUGO|S_IWUSR);
 163 MODULE_PARM_DESC(dacmode, "Control whether dma addressing is using 64 bit DAC."
 164         " 0=off, 1=on");
 165 module_param_named(commit, aac_commit, int, S_IRUGO|S_IWUSR);
 166 MODULE_PARM_DESC(commit, "Control whether a COMMIT_CONFIG is issued to the"
 167         " adapter for foreign arrays.\n"
 168         "This is typically needed in systems that do not have a BIOS."
 169         " 0=off, 1=on");
 170 module_param_named(msi, aac_msi, int, S_IRUGO|S_IWUSR);
 171 MODULE_PARM_DESC(msi, "IRQ handling."
 172         " 0=PIC(default), 1=MSI, 2=MSI-X(unsupported, uses MSI)");
 173 module_param(startup_timeout, int, S_IRUGO|S_IWUSR);
 174 MODULE_PARM_DESC(startup_timeout, "The duration of time in seconds to wait for"
 175         " adapter to have it's kernel up and\n"
 176         "running. This is typically adjusted for large systems that do not"
 177         " have a BIOS.");
 178 module_param(aif_timeout, int, S_IRUGO|S_IWUSR);
 179 MODULE_PARM_DESC(aif_timeout, "The duration of time in seconds to wait for"
 180         " applications to pick up AIFs before\n"
 181         "deregistering them. This is typically adjusted for heavily burdened"
 182         " systems.");
 183
 184 int numacb = -1;
 185 module_param(numacb, int, S_IRUGO|S_IWUSR);
 186 MODULE_PARM_DESC(numacb, "Request a limit to the number of adapter control"
 187         " blocks (FIB) allocated. Valid values are 512 and down. Default is"
 188         " to use suggestion from Firmware.");
 189
 190 int acbsize = -1;
 191 module_param(acbsize, int, S_IRUGO|S_IWUSR);
 192 MODULE_PARM_DESC(acbsize, "Request a specific adapter control block (FIB)"
 193         " size. Valid values are 512, 2048, 4096 and 8192. Default is to use"
 194         " suggestion from Firmware.");
 195
 196 int update_interval = 30 * 60;
 197 module_param(update_interval, int, S_IRUGO|S_IWUSR);
 198 MODULE_PARM_DESC(update_interval, "Interval in seconds between time sync"
 199         " updates issued to adapter.");
 200
 201 int check_interval = 24 * 60 * 60;
 202 module_param(check_interval, int, S_IRUGO|S_IWUSR);
 203 MODULE_PARM_DESC(check_interval, "Interval in seconds between adapter health"
 204         " checks.");
 205
 206 int aac_check_reset = 1;
 207 module_param_named(check_reset, aac_check_reset, int, S_IRUGO|S_IWUSR);
 208 MODULE_PARM_DESC(check_reset, "If adapter fails health check, reset the"
 209         " adapter. a value of -1 forces the reset to adapters programmed to"
 210         " ignore it.");
 211
 212 int expose_physicals = -1;
 213 module_param(expose_physicals, int, S_IRUGO|S_IWUSR);
 214 MODULE_PARM_DESC(expose_physicals, "Expose physical components of the arrays."
 215         " -1=protect 0=off, 1=on");
 216
 217 int aac_reset_devices;
 218 module_param_named(reset_devices, aac_reset_devices, int, S_IRUGO|S_IWUSR);
 219 MODULE_PARM_DESC(reset_devices, "Force an adapter reset at initialization.");
 220
 221 static inline int aac_valid_context(struct scsi_cmnd *scsicmd,
 222                 struct fib *fibptr) {
 223         struct scsi_device *device;
 224
 225         if (unlikely(!scsicmd || !scsicmd->scsi_done)) {
 226                 dprintk((KERN_WARNING "aac_valid_context: scsi command corrupt\n"));
 227                 aac_fib_complete(fibptr);
 228                 aac_fib_free(fibptr);
 229                 return 0;
 230         }
 231         scsicmd->SCp.phase = AAC_OWNER_MIDLEVEL;
 232         device = scsicmd->device;
 233         if (unlikely(!device || !scsi_device_online(device))) {
 234                 dprintk((KERN_WARNING "aac_valid_context: scsi device corrupt\n"));
 235                 aac_fib_complete(fibptr);
 236                 aac_fib_free(fibptr);
 237                 return 0;
 238         }
 239         return 1;
 240 }
 241
 242 /**
 243  *      aac_get_config_status   -       check the adapter configuration
 244  *      @common: adapter to query
 245  *
 246  *      Query config status, and commit the configuration if needed.
 247  */
 248 int aac_get_config_status(struct aac_dev *dev, int commit_flag)
 249 {
 250         int status = 0;
 251         struct fib * fibptr;
 252
 253         if (!(fibptr = aac_fib_alloc(dev)))
 254                 return -ENOMEM;
 255
 256         aac_fib_init(fibptr);
 257         {
 258                 struct aac_get_config_status *dinfo;
 259                 dinfo = (struct aac_get_config_status *) fib_data(fibptr);
 260
 261                 dinfo->command = cpu_to_le32(VM_ContainerConfig);
 262                 dinfo->type = cpu_to_le32(CT_GET_CONFIG_STATUS);
 263                 dinfo->count = cpu_to_le32(sizeof(((struct aac_get_config_status_resp *)NULL)->data));
 264         }
 265
 266         status = aac_fib_send(ContainerCommand,
 267                             fibptr,
 268                             sizeof (struct aac_get_config_status),
 269                             FsaNormal,
 270                             1, 1,
 271                             NULL, NULL);
 272         if (status < 0) {
 273                 printk(KERN_WARNING "aac_get_config_status: SendFIB failed.\n");
 274         } else {
 275                 struct aac_get_config_status_resp *reply
 276                   = (struct aac_get_config_status_resp *) fib_data(fibptr);
 277                 dprintk((KERN_WARNING
 278                   "aac_get_config_status: response=%d status=%d action=%d\n",
 279                   le32_to_cpu(reply->response),
 280                   le32_to_cpu(reply->status),
 281                   le32_to_cpu(reply->data.action)));
 282                 if ((le32_to_cpu(reply->response) != ST_OK) ||
 283                      (le32_to_cpu(reply->status) != CT_OK) ||
 284                      (le32_to_cpu(reply->data.action) > CFACT_PAUSE)) {
 285                         printk(KERN_WARNING "aac_get_config_status: Will not issue the Commit Configuration\n");
 286                         status = -EINVAL;
 287                 }
 288         }
 289         aac_fib_complete(fibptr);
 290         /* Send a CT_COMMIT_CONFIG to enable discovery of devices */
 291         if (status >= 0) {
 292                 if ((aac_commit == 1) || commit_flag) {
 293                         struct aac_commit_config * dinfo;
 294                         aac_fib_init(fibptr);
 295                         dinfo = (struct aac_commit_config *) fib_data(fibptr);
 296
 297                         dinfo->command = cpu_to_le32(VM_ContainerConfig);
 298                         dinfo->type = cpu_to_le32(CT_COMMIT_CONFIG);
 299
 300                         status = aac_fib_send(ContainerCommand,
 301                                     fibptr,
 302                                     sizeof (struct aac_commit_config),
 303                                     FsaNormal,
 304                                     1, 1,
 305                                     NULL, NULL);
 306                         aac_fib_complete(fibptr);
 307                 } else if (aac_commit == 0) {
 308                         printk(KERN_WARNING
 309                           "aac_get_config_status: Foreign device configurations are being ignored\n");
 310                 }
 311         }
 312         aac_fib_free(fibptr);
 313         return status;
 314 }
 315
 316 /**
 317  *      aac_get_containers      -       list containers
 318  *      @common: adapter to probe
 319  *
 320  *      Make a list of all containers on this controller
 321  */
 322 int aac_get_containers(struct aac_dev *dev)
 323 {
 324         struct fsa_dev_info *fsa_dev_ptr;
 325         u32 index;
 326         int status = 0;
 327         struct fib * fibptr;
 328         struct aac_get_container_count *dinfo;
 329         struct aac_get_container_count_resp *dresp;
 330         int maximum_num_containers = MAXIMUM_NUM_CONTAINERS;
 331
 332         if (!(fibptr = aac_fib_alloc(dev)))
 333                 return -ENOMEM;
 334
 335         aac_fib_init(fibptr);
 336         dinfo = (struct aac_get_container_count *) fib_data(fibptr);
 337         dinfo->command = cpu_to_le32(VM_ContainerConfig);
 338         dinfo->type = cpu_to_le32(CT_GET_CONTAINER_COUNT);
 339
 340         status = aac_fib_send(ContainerCommand,
 341                     fibptr,
 342                     sizeof (struct aac_get_container_count),
 343                     FsaNormal,
 344                     1, 1,
 345                     NULL, NULL);
 346         if (status >= 0) {
 347                 dresp = (struct aac_get_container_count_resp *)fib_data(fibptr);
 348                 maximum_num_containers = le32_to_cpu(dresp->ContainerSwitchEntries);
 349                 aac_fib_complete(fibptr);
 350         }
 351         aac_fib_free(fibptr);
 352
 353         if (maximum_num_containers < MAXIMUM_NUM_CONTAINERS)
 354                 maximum_num_containers = MAXIMUM_NUM_CONTAINERS;
 355         fsa_dev_ptr = kzalloc(sizeof(*fsa_dev_ptr) * maximum_num_containers,
 356                         GFP_KERNEL);
 357         if (!fsa_dev_ptr)
 358                 return -ENOMEM;
 359
 360         dev->fsa_dev = fsa_dev_ptr;
 361         dev->maximum_num_containers = maximum_num_containers;
 362
 363         for (index = 0; index < dev->maximum_num_containers; ) {
 364                 fsa_dev_ptr[index].devname[0] = '\0';
 365
 366                 status = aac_probe_container(dev, index);
 367
 368                 if (status < 0) {
 369                         printk(KERN_WARNING "aac_get_containers: SendFIB failed.\n");
 370                         break;
 371                 }
 372
 373                 /*
 374                  *      If there are no more containers, then stop asking.
 375                  */
 376                 if (++index >= status)
 377                         break;
 378         }
 379         return status;
 380 }
 381
 382 static void get_container_name_callback(void *context, struct fib * fibptr)
 383 {
 384         struct aac_get_name_resp * get_name_reply;
 385         struct scsi_cmnd * scsicmd;
 386
 387         scsicmd = (struct scsi_cmnd *) context;
 388
 389         if (!aac_valid_context(scsicmd, fibptr))
 390                 return;
 391
 392         dprintk((KERN_DEBUG "get_container_name_callback[cpu %d]: t = %ld.\n", smp_processor_id(), jiffies));
 393         BUG_ON(fibptr == NULL);
 394
 395         get_name_reply = (struct aac_get_name_resp *) fib_data(fibptr);
 396         /* Failure is irrelevant, using default value instead */
 397         if ((le32_to_cpu(get_name_reply->status) == CT_OK)
 398          && (get_name_reply->data[0] != '\0')) {
 399                 char *sp = get_name_reply->data;
 400                 sp[sizeof(((struct aac_get_name_resp *)NULL)->data)-1] = '\0';
 401                 while (*sp == ' ')
 402                         ++sp;
 403                 if (*sp) {
 404                         struct inquiry_data inq;
 405                         char d[sizeof(((struct inquiry_data *)NULL)->inqd_pid)];
 406                         int count = sizeof(d);
 407                         char *dp = d;
 408                         do {
 409                                 *dp++ = (*sp) ? *sp++ : ' ';
 410                         } while (--count > 0);
 411
 412                         scsi_sg_copy_to_buffer(scsicmd, &inq, sizeof(inq));
 413                         memcpy(inq.inqd_pid, d, sizeof(d));
 414                         scsi_sg_copy_from_buffer(scsicmd, &inq, sizeof(inq));
 415                 }
 416         }
 417
 418         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
 419
 420         aac_fib_complete(fibptr);
 421         aac_fib_free(fibptr);
 422         scsicmd->scsi_done(scsicmd);
 423 }
 424
 425 /**
 426  *      aac_get_container_name  -       get container name, none blocking.
 427  */
 428 static int aac_get_container_name(struct scsi_cmnd * scsicmd)
 429 {
 430         int status;
 431         struct aac_get_name *dinfo;
 432         struct fib * cmd_fibcontext;
 433         struct aac_dev * dev;
 434
 435         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
 436
 437         if (!(cmd_fibcontext = aac_fib_alloc(dev)))
 438                 return -ENOMEM;
 439
 440         aac_fib_init(cmd_fibcontext);
 441         dinfo = (struct aac_get_name *) fib_data(cmd_fibcontext);
 442
 443         dinfo->command = cpu_to_le32(VM_ContainerConfig);
 444         dinfo->type = cpu_to_le32(CT_READ_NAME);
 445         dinfo->cid = cpu_to_le32(scmd_id(scsicmd));
 446         dinfo->count = cpu_to_le32(sizeof(((struct aac_get_name_resp *)NULL)->data));
 447
 448         status = aac_fib_send(ContainerCommand,
 449                   cmd_fibcontext,
 450                   sizeof (struct aac_get_name),
 451                   FsaNormal,
 452                   0, 1,
 453                   (fib_callback)get_container_name_callback,
 454                   (void *) scsicmd);
 455
 456         /*
 457          *      Check that the command queued to the controller
 458          */
 459         if (status == -EINPROGRESS) {
 460                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
 461                 return 0;
 462         }
 463
 464         printk(KERN_WARNING "aac_get_container_name: aac_fib_send failed with status: %d.\n", status);
 465         aac_fib_complete(cmd_fibcontext);
 466         aac_fib_free(cmd_fibcontext);
 467         return -1;
 468 }
 469
 470 static int aac_probe_container_callback2(struct scsi_cmnd * scsicmd)
 471 {
 472         struct fsa_dev_info *fsa_dev_ptr = ((struct aac_dev *)(scsicmd->device->host->hostdata))->fsa_dev;
 473
 474         if ((fsa_dev_ptr[scmd_id(scsicmd)].valid & 1))
 475                 return aac_scsi_cmd(scsicmd);
 476
 477         scsicmd->result = DID_NO_CONNECT << 16;
 478         scsicmd->scsi_done(scsicmd);
 479         return 0;
 480 }
 481
 482 static void _aac_probe_container2(void * context, struct fib * fibptr)
 483 {
 484         struct fsa_dev_info *fsa_dev_ptr;
 485         int (*callback)(struct scsi_cmnd *);
 486         struct scsi_cmnd * scsicmd = (struct scsi_cmnd *)context;
 487
 488
 489         if (!aac_valid_context(scsicmd, fibptr))
 490                 return;
 491
 492         scsicmd->SCp.Status = 0;
 493         fsa_dev_ptr = fibptr->dev->fsa_dev;
 494         if (fsa_dev_ptr) {
 495                 struct aac_mount * dresp = (struct aac_mount *) fib_data(fibptr);
 496                 fsa_dev_ptr += scmd_id(scsicmd);
 497
 498                 if ((le32_to_cpu(dresp->status) == ST_OK) &&
 499                     (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE) &&
 500                     (le32_to_cpu(dresp->mnt[0].state) != FSCS_HIDDEN)) {
 501                         fsa_dev_ptr->valid = 1;
 502                         fsa_dev_ptr->type = le32_to_cpu(dresp->mnt[0].vol);
 503                         fsa_dev_ptr->size
 504                           = ((u64)le32_to_cpu(dresp->mnt[0].capacity)) +
 505                             (((u64)le32_to_cpu(dresp->mnt[0].capacityhigh)) << 32);
 506                         fsa_dev_ptr->ro = ((le32_to_cpu(dresp->mnt[0].state) & FSCS_READONLY) != 0);
 507                 }
 508                 if ((fsa_dev_ptr->valid & 1) == 0)
 509                         fsa_dev_ptr->valid = 0;
 510                 scsicmd->SCp.Status = le32_to_cpu(dresp->count);
 511         }
 512         aac_fib_complete(fibptr);
 513         aac_fib_free(fibptr);
 514         callback = (int (*)(struct scsi_cmnd *))(scsicmd->SCp.ptr);
 515         scsicmd->SCp.ptr = NULL;
 516         (*callback)(scsicmd);
 517         return;
 518 }
 519
 520 static void _aac_probe_container1(void * context, struct fib * fibptr)
 521 {
 522         struct scsi_cmnd * scsicmd;
 523         struct aac_mount * dresp;
 524         struct aac_query_mount *dinfo;
 525         int status;
 526
 527         dresp = (struct aac_mount *) fib_data(fibptr);
 528         dresp->mnt[0].capacityhigh = 0;
 529         if ((le32_to_cpu(dresp->status) != ST_OK) ||
 530             (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE)) {
 531                 _aac_probe_container2(context, fibptr);
 532                 return;
 533         }
 534         scsicmd = (struct scsi_cmnd *) context;
 535
 536         if (!aac_valid_context(scsicmd, fibptr))
 537                 return;
 538
 539         aac_fib_init(fibptr);
 540
 541         dinfo = (struct aac_query_mount *)fib_data(fibptr);
 542
 543         dinfo->command = cpu_to_le32(VM_NameServe64);
 544         dinfo->count = cpu_to_le32(scmd_id(scsicmd));
 545         dinfo->type = cpu_to_le32(FT_FILESYS);
 546
 547         status = aac_fib_send(ContainerCommand,
 548                           fibptr,
 549                           sizeof(struct aac_query_mount),
 550                           FsaNormal,
 551                           0, 1,
 552                           _aac_probe_container2,
 553                           (void *) scsicmd);
 554         /*
 555          *      Check that the command queued to the controller
 556          */
 557         if (status == -EINPROGRESS)
 558                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
 559         else if (status < 0) {
 560                 /* Inherit results from VM_NameServe, if any */
 561                 dresp->status = cpu_to_le32(ST_OK);
 562                 _aac_probe_container2(context, fibptr);
 563         }
 564 }
 565
 566 static int _aac_probe_container(struct scsi_cmnd * scsicmd, int (*callback)(struct scsi_cmnd *))
 567 {
 568         struct fib * fibptr;
 569         int status = -ENOMEM;
 570
 571         if ((fibptr = aac_fib_alloc((struct aac_dev *)scsicmd->device->host->hostdata))) {
 572                 struct aac_query_mount *dinfo;
 573
 574                 aac_fib_init(fibptr);
 575
 576                 dinfo = (struct aac_query_mount *)fib_data(fibptr);
 577
 578                 dinfo->command = cpu_to_le32(VM_NameServe);
 579                 dinfo->count = cpu_to_le32(scmd_id(scsicmd));
 580                 dinfo->type = cpu_to_le32(FT_FILESYS);
 581                 scsicmd->SCp.ptr = (char *)callback;
 582
 583                 status = aac_fib_send(ContainerCommand,
 584                           fibptr,
 585                           sizeof(struct aac_query_mount),
 586                           FsaNormal,
 587                           0, 1,
 588                           _aac_probe_container1,
 589                           (void *) scsicmd);
 590                 /*
 591                  *      Check that the command queued to the controller
 592                  */
 593                 if (status == -EINPROGRESS) {
 594                         scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
 595                         return 0;
 596                 }
 597                 if (status < 0) {
 598                         scsicmd->SCp.ptr = NULL;
 599                         aac_fib_complete(fibptr);
 600                         aac_fib_free(fibptr);
 601                 }
 602         }
 603         if (status < 0) {
 604                 struct fsa_dev_info *fsa_dev_ptr = ((struct aac_dev *)(scsicmd->device->host->hostdata))->fsa_dev;
 605                 if (fsa_dev_ptr) {
 606                         fsa_dev_ptr += scmd_id(scsicmd);
 607                         if ((fsa_dev_ptr->valid & 1) == 0) {
 608                                 fsa_dev_ptr->valid = 0;
 609                                 return (*callback)(scsicmd);
 610                         }
 611                 }
 612         }
 613         return status;
 614 }
 615
 616 /**
 617  *      aac_probe_container             -       query a logical volume
 618  *      @dev: device to query
 619  *      @cid: container identifier
 620  *
 621  *      Queries the controller about the given volume. The volume information
 622  *      is updated in the struct fsa_dev_info structure rather than returned.
 623  */
 624 static int aac_probe_container_callback1(struct scsi_cmnd * scsicmd)
 625 {
 626         scsicmd->device = NULL;
 627         return 0;
 628 }
 629
 630 int aac_probe_container(struct aac_dev *dev, int cid)
 631 {
 632         struct scsi_cmnd *scsicmd = kmalloc(sizeof(*scsicmd), GFP_KERNEL);
 633         struct scsi_device *scsidev = kmalloc(sizeof(*scsidev), GFP_KERNEL);
 634         int status;
 635
 636         if (!scsicmd || !scsidev) {
 637                 kfree(scsicmd);
 638                 kfree(scsidev);
 639                 return -ENOMEM;
 640         }
 641         scsicmd->list.next = NULL;
 642         scsicmd->scsi_done = (void (*)(struct scsi_cmnd*))aac_probe_container_callback1;
 643
 644         scsicmd->device = scsidev;
 645         scsidev->sdev_state = 0;
 646         scsidev->id = cid;
 647         scsidev->host = dev->scsi_host_ptr;
 648
 649         if (_aac_probe_container(scsicmd, aac_probe_container_callback1) == 0)
 650                 while (scsicmd->device == scsidev)
 651                         schedule();
 652         kfree(scsidev);
 653         status = scsicmd->SCp.Status;
 654         kfree(scsicmd);
 655         return status;
 656 }
 657
 658 /* Local Structure to set SCSI inquiry data strings */
 659 struct scsi_inq {
 660         char vid[8];         /* Vendor ID */
 661         char pid[16];        /* Product ID */
 662         char prl[4];         /* Product Revision Level */
 663 };
 664
 665 /**
 666  *      InqStrCopy      -       string merge
 667  *      @a:     string to copy from
 668  *      @b:     string to copy to
 669  *
 670  *      Copy a String from one location to another
 671  *      without copying \0
 672  */
 673
 674 static void inqstrcpy(char *a, char *b)
 675 {
 676
 677         while (*a != (char)0)
 678                 *b++ = *a++;
 679 }
 680
 681 static char *container_types[] = {
 682         "None",
 683         "Volume",
 684         "Mirror",
 685         "Stripe",
 686         "RAID5",
 687         "SSRW",
 688         "SSRO",
 689         "Morph",
 690         "Legacy",
 691         "RAID4",
 692         "RAID10",
 693         "RAID00",
 694         "V-MIRRORS",
 695         "PSEUDO R4",
 696         "RAID50",
 697         "RAID5D",
 698         "RAID5D0",
 699         "RAID1E",
 700         "RAID6",
 701         "RAID60",
 702         "Unknown"
 703 };
 704
 705 char * get_container_type(unsigned tindex)
 706 {
 707         if (tindex >= ARRAY_SIZE(container_types))
 708                 tindex = ARRAY_SIZE(container_types) - 1;
 709         return container_types[tindex];
 710 }
 711
 712 /* Function: setinqstr
 713  *
 714  * Arguments: [1] pointer to void [1] int
 715  *
 716  * Purpose: Sets SCSI inquiry data strings for vendor, product
 717  * and revision level. Allows strings to be set in platform dependant
 718  * files instead of in OS dependant driver source.
 719  */
 720
 721 static void setinqstr(struct aac_dev *dev, void *data, int tindex)
 722 {
 723         struct scsi_inq *str;
 724
 725         str = (struct scsi_inq *)(data); /* cast data to scsi inq block */
 726         memset(str, ' ', sizeof(*str));
 727
 728         if (dev->supplement_adapter_info.AdapterTypeText[0]) {
 729                 char * cp = dev->supplement_adapter_info.AdapterTypeText;
 730                 int c;
 731                 if ((cp[0] == 'A') && (cp[1] == 'O') && (cp[2] == 'C'))
 732                         inqstrcpy("SMC", str->vid);
 733                 else {
 734                         c = sizeof(str->vid);
 735                         while (*cp && *cp != ' ' && --c)
 736                                 ++cp;
 737                         c = *cp;
 738                         *cp = '\0';
 739                         inqstrcpy (dev->supplement_adapter_info.AdapterTypeText,
 740                                    str->vid);
 741                         *cp = c;
 742                         while (*cp && *cp != ' ')
 743                                 ++cp;
 744                 }
 745                 while (*cp == ' ')
 746                         ++cp;
 747                 /* last six chars reserved for vol type */
 748                 c = 0;
 749                 if (strlen(cp) > sizeof(str->pid)) {
 750                         c = cp[sizeof(str->pid)];
 751                         cp[sizeof(str->pid)] = '\0';
 752                 }
 753                 inqstrcpy (cp, str->pid);
 754                 if (c)
 755                         cp[sizeof(str->pid)] = c;
 756         } else {
 757                 struct aac_driver_ident *mp = aac_get_driver_ident(dev->cardtype);
 758
 759                 inqstrcpy (mp->vname, str->vid);
 760                 /* last six chars reserved for vol type */
 761                 inqstrcpy (mp->model, str->pid);
 762         }
 763
 764         if (tindex < ARRAY_SIZE(container_types)){
 765                 char *findit = str->pid;
 766
 767                 for ( ; *findit != ' '; findit++); /* walk till we find a space */
 768                 /* RAID is superfluous in the context of a RAID device */
 769                 if (memcmp(findit-4, "RAID", 4) == 0)
 770                         *(findit -= 4) = ' ';
 771                 if (((findit - str->pid) + strlen(container_types[tindex]))
 772                  < (sizeof(str->pid) + sizeof(str->prl)))
 773                         inqstrcpy (container_types[tindex], findit + 1);
 774         }
 775         inqstrcpy ("V1.0", str->prl);
 776 }
 777
 778 static void get_container_serial_callback(void *context, struct fib * fibptr)
 779 {
 780         struct aac_get_serial_resp * get_serial_reply;
 781         struct scsi_cmnd * scsicmd;
 782
 783         BUG_ON(fibptr == NULL);
 784
 785         scsicmd = (struct scsi_cmnd *) context;
 786         if (!aac_valid_context(scsicmd, fibptr))
 787                 return;
 788
 789         get_serial_reply = (struct aac_get_serial_resp *) fib_data(fibptr);
 790         /* Failure is irrelevant, using default value instead */
 791         if (le32_to_cpu(get_serial_reply->status) == CT_OK) {
 792                 char sp[13];
 793                 /* EVPD bit set */
 794                 sp[0] = INQD_PDT_DA;
 795                 sp[1] = scsicmd->cmnd[2];
 796                 sp[2] = 0;
 797                 sp[3] = snprintf(sp+4, sizeof(sp)-4, "%08X",
 798                   le32_to_cpu(get_serial_reply->uid));
 799                 scsi_sg_copy_from_buffer(scsicmd, sp, sizeof(sp));
 800         }
 801
 802         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
 803
 804         aac_fib_complete(fibptr);
 805         aac_fib_free(fibptr);
 806         scsicmd->scsi_done(scsicmd);
 807 }
 808
 809 /**
 810  *      aac_get_container_serial - get container serial, none blocking.
 811  */
 812 static int aac_get_container_serial(struct scsi_cmnd * scsicmd)
 813 {
 814         int status;
 815         struct aac_get_serial *dinfo;
 816         struct fib * cmd_fibcontext;
 817         struct aac_dev * dev;
 818
 819         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
 820
 821         if (!(cmd_fibcontext = aac_fib_alloc(dev)))
 822                 return -ENOMEM;
 823
 824         aac_fib_init(cmd_fibcontext);
 825         dinfo = (struct aac_get_serial *) fib_data(cmd_fibcontext);
 826
 827         dinfo->command = cpu_to_le32(VM_ContainerConfig);
 828         dinfo->type = cpu_to_le32(CT_CID_TO_32BITS_UID);
 829         dinfo->cid = cpu_to_le32(scmd_id(scsicmd));
 830
 831         status = aac_fib_send(ContainerCommand,
 832                   cmd_fibcontext,
 833                   sizeof (struct aac_get_serial),
 834                   FsaNormal,
 835                   0, 1,
 836                   (fib_callback) get_container_serial_callback,
 837                   (void *) scsicmd);
 838
 839         /*
 840          *      Check that the command queued to the controller
 841          */
 842         if (status == -EINPROGRESS) {
 843                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
 844                 return 0;
 845         }
 846
 847         printk(KERN_WARNING "aac_get_container_serial: aac_fib_send failed with status: %d.\n", status);
 848         aac_fib_complete(cmd_fibcontext);
 849         aac_fib_free(cmd_fibcontext);
 850         return -1;
 851 }
 852
 853 /* Function: setinqserial
 854  *
 855  * Arguments: [1] pointer to void [1] int
 856  *
 857  * Purpose: Sets SCSI Unit Serial number.
 858  *          This is a fake. We should read a proper
 859  *          serial number from the container. <SuSE>But
 860  *          without docs it's quite hard to do it :-)
 861  *          So this will have to do in the meantime.</SuSE>
 862  */
 863
 864 static int setinqserial(struct aac_dev *dev, void *data, int cid)
 865 {
 866         /*
 867          *      This breaks array migration.
 868          */
 869         return snprintf((char *)(data), sizeof(struct scsi_inq) - 4, "%08X%02X",
 870                         le32_to_cpu(dev->adapter_info.serial[0]), cid);
 871 }
 872
 873 static inline void set_sense(struct sense_data *sense_data, u8 sense_key,
 874         u8 sense_code, u8 a_sense_code, u8 bit_pointer, u16 field_pointer)
 875 {
 876         u8 *sense_buf = (u8 *)sense_data;
 877         /* Sense data valid, err code 70h */
 878         sense_buf[0] = 0x70; /* No info field */
 879         sense_buf[1] = 0;       /* Segment number, always zero */
 880
 881         sense_buf[2] = sense_key;       /* Sense key */
 882
 883         sense_buf[12] = sense_code;     /* Additional sense code */
 884         sense_buf[13] = a_sense_code;   /* Additional sense code qualifier */
 885
 886         if (sense_key == ILLEGAL_REQUEST) {
 887                 sense_buf[7] = 10;      /* Additional sense length */
 888
 889                 sense_buf[15] = bit_pointer;
 890                 /* Illegal parameter is in the parameter block */
 891                 if (sense_code == SENCODE_INVALID_CDB_FIELD)
 892                         sense_buf[15] |= 0xc0;/* Std sense key specific field */
 893                 /* Illegal parameter is in the CDB block */
 894                 sense_buf[16] = field_pointer >> 8;     /* MSB */
 895                 sense_buf[17] = field_pointer;          /* LSB */
 896         } else
 897                 sense_buf[7] = 6;       /* Additional sense length */
 898 }
 899
 900 static int aac_bounds_32(struct aac_dev * dev, struct scsi_cmnd * cmd, u64 lba)
 901 {
 902         if (lba & 0xffffffff00000000LL) {
 903                 int cid = scmd_id(cmd);
 904                 dprintk((KERN_DEBUG "aacraid: Illegal lba\n"));
 905                 cmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 |
 906                         SAM_STAT_CHECK_CONDITION;
 907                 set_sense(&dev->fsa_dev[cid].sense_data,
 908                   HARDWARE_ERROR, SENCODE_INTERNAL_TARGET_FAILURE,
 909                   ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0);
 910                 memcpy(cmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
 911                        min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
 912                              SCSI_SENSE_BUFFERSIZE));
 913                 cmd->scsi_done(cmd);
 914                 return 1;
 915         }
 916         return 0;
 917 }
 918
 919 static int aac_bounds_64(struct aac_dev * dev, struct scsi_cmnd * cmd, u64 lba)
 920 {
 921         return 0;
 922 }
 923
 924 static void io_callback(void *context, struct fib * fibptr);
 925
 926 static int aac_read_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count)
 927 {
 928         u16 fibsize;
 929         struct aac_raw_io *readcmd;
 930         aac_fib_init(fib);
 931         readcmd = (struct aac_raw_io *) fib_data(fib);
 932         readcmd->block[0] = cpu_to_le32((u32)(lba&0xffffffff));
 933         readcmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
 934         readcmd->count = cpu_to_le32(count<<9);
 935         readcmd->cid = cpu_to_le16(scmd_id(cmd));
 936         readcmd->flags = cpu_to_le16(IO_TYPE_READ);
 937         readcmd->bpTotal = 0;
 938         readcmd->bpComplete = 0;
 939
 940         aac_build_sgraw(cmd, &readcmd->sg);
 941         fibsize = sizeof(struct aac_raw_io) + ((le32_to_cpu(readcmd->sg.count) - 1) * sizeof (struct sgentryraw));
 942         BUG_ON(fibsize > (fib->dev->max_fib_size - sizeof(struct aac_fibhdr)));
 943         /*
 944          *      Now send the Fib to the adapter
 945          */
 946         return aac_fib_send(ContainerRawIo,
 947                           fib,
 948                           fibsize,
 949                           FsaNormal,
 950                           0, 1,
 951                           (fib_callback) io_callback,
 952                           (void *) cmd);
 953 }
 954
 955 static int aac_read_block64(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count)
 956 {
 957         u16 fibsize;
 958         struct aac_read64 *readcmd;
 959         aac_fib_init(fib);
 960         readcmd = (struct aac_read64 *) fib_data(fib);
 961         readcmd->command = cpu_to_le32(VM_CtHostRead64);
 962         readcmd->cid = cpu_to_le16(scmd_id(cmd));
 963         readcmd->sector_count = cpu_to_le16(count);
 964         readcmd->block = cpu_to_le32((u32)(lba&0xffffffff));
 965         readcmd->pad   = 0;
 966         readcmd->flags = 0;
 967
 968         aac_build_sg64(cmd, &readcmd->sg);
 969         fibsize = sizeof(struct aac_read64) +
 970                 ((le32_to_cpu(readcmd->sg.count) - 1) *
 971                  sizeof (struct sgentry64));
 972         BUG_ON (fibsize > (fib->dev->max_fib_size -
 973                                 sizeof(struct aac_fibhdr)));
 974         /*
 975          *      Now send the Fib to the adapter
 976          */
 977         return aac_fib_send(ContainerCommand64,
 978                           fib,
 979                           fibsize,
 980                           FsaNormal,
 981                           0, 1,
 982                           (fib_callback) io_callback,
 983                           (void *) cmd);
 984 }
 985
 986 static int aac_read_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count)
 987 {
 988         u16 fibsize;
 989         struct aac_read *readcmd;
 990         aac_fib_init(fib);
 991         readcmd = (struct aac_read *) fib_data(fib);
 992         readcmd->command = cpu_to_le32(VM_CtBlockRead);
 993         readcmd->cid = cpu_to_le32(scmd_id(cmd));
 994         readcmd->block = cpu_to_le32((u32)(lba&0xffffffff));
 995         readcmd->count = cpu_to_le32(count * 512);
 996
 997         aac_build_sg(cmd, &readcmd->sg);
 998         fibsize = sizeof(struct aac_read) +
 999                         ((le32_to_cpu(readcmd->sg.count) - 1) *
1000                          sizeof (struct sgentry));
1001         BUG_ON (fibsize > (fib->dev->max_fib_size -
1002                                 sizeof(struct aac_fibhdr)));
1003         /*
1004          *      Now send the Fib to the adapter
1005          */
1006         return aac_fib_send(ContainerCommand,
1007                           fib,
1008                           fibsize,
1009                           FsaNormal,
1010                           0, 1,
1011                           (fib_callback) io_callback,
1012                           (void *) cmd);
1013 }
1014
1015 static int aac_write_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count, int fua)
1016 {
1017         u16 fibsize;
1018         struct aac_raw_io *writecmd;
1019         aac_fib_init(fib);
1020         writecmd = (struct aac_raw_io *) fib_data(fib);
1021         writecmd->block[0] = cpu_to_le32((u32)(lba&0xffffffff));
1022         writecmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
1023         writecmd->count = cpu_to_le32(count<<9);
1024         writecmd->cid = cpu_to_le16(scmd_id(cmd));
1025         writecmd->flags = (fua && ((aac_cache & 5) != 1) &&
1026           (((aac_cache & 5) != 5) || !fib->dev->cache_protected)) ?
1027                 cpu_to_le16(IO_TYPE_WRITE|IO_SUREWRITE) :
1028                 cpu_to_le16(IO_TYPE_WRITE);
1029         writecmd->bpTotal = 0;
1030         writecmd->bpComplete = 0;
1031
1032         aac_build_sgraw(cmd, &writecmd->sg);
1033         fibsize = sizeof(struct aac_raw_io) + ((le32_to_cpu(writecmd->sg.count) - 1) * sizeof (struct sgentryraw));
1034         BUG_ON(fibsize > (fib->dev->max_fib_size - sizeof(struct aac_fibhdr)));
1035         /*
1036          *      Now send the Fib to the adapter
1037          */
1038         return aac_fib_send(ContainerRawIo,
1039                           fib,
1040                           fibsize,
1041                           FsaNormal,
1042                           0, 1,
1043                           (fib_callback) io_callback,
1044                           (void *) cmd);
1045 }
1046
1047 static int aac_write_block64(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count, int fua)
1048 {
1049         u16 fibsize;
1050         struct aac_write64 *writecmd;
1051         aac_fib_init(fib);
1052         writecmd = (struct aac_write64 *) fib_data(fib);
1053         writecmd->command = cpu_to_le32(VM_CtHostWrite64);
1054         writecmd->cid = cpu_to_le16(scmd_id(cmd));
1055         writecmd->sector_count = cpu_to_le16(count);
1056         writecmd->block = cpu_to_le32((u32)(lba&0xffffffff));
1057         writecmd->pad   = 0;
1058         writecmd->flags = 0;
1059
1060         aac_build_sg64(cmd, &writecmd->sg);
1061         fibsize = sizeof(struct aac_write64) +
1062                 ((le32_to_cpu(writecmd->sg.count) - 1) *
1063                  sizeof (struct sgentry64));
1064         BUG_ON (fibsize > (fib->dev->max_fib_size -
1065                                 sizeof(struct aac_fibhdr)));
1066         /*
1067          *      Now send the Fib to the adapter
1068          */
1069         return aac_fib_send(ContainerCommand64,
1070                           fib,
1071                           fibsize,
1072                           FsaNormal,
1073                           0, 1,
1074                           (fib_callback) io_callback,
1075                           (void *) cmd);
1076 }
1077
1078 static int aac_write_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count, int fua)
1079 {
1080         u16 fibsize;
1081         struct aac_write *writecmd;
1082         aac_fib_init(fib);
1083         writecmd = (struct aac_write *) fib_data(fib);
1084         writecmd->command = cpu_to_le32(VM_CtBlockWrite);
1085         writecmd->cid = cpu_to_le32(scmd_id(cmd));
1086         writecmd->block = cpu_to_le32((u32)(lba&0xffffffff));
1087         writecmd->count = cpu_to_le32(count * 512);
1088         writecmd->sg.count = cpu_to_le32(1);
1089         /* ->stable is not used - it did mean which type of write */
1090
1091         aac_build_sg(cmd, &writecmd->sg);
1092         fibsize = sizeof(struct aac_write) +
1093                 ((le32_to_cpu(writecmd->sg.count) - 1) *
1094                  sizeof (struct sgentry));
1095         BUG_ON (fibsize > (fib->dev->max_fib_size -
1096                                 sizeof(struct aac_fibhdr)));
1097         /*
1098          *      Now send the Fib to the adapter
1099          */
1100         return aac_fib_send(ContainerCommand,
1101                           fib,
1102                           fibsize,
1103                           FsaNormal,
1104                           0, 1,
1105                           (fib_callback) io_callback,
1106                           (void *) cmd);
1107 }
1108
1109 static struct aac_srb * aac_scsi_common(struct fib * fib, struct scsi_cmnd * cmd)
1110 {
1111         struct aac_srb * srbcmd;
1112         u32 flag;
1113         u32 timeout;
1114
1115         aac_fib_init(fib);
1116         switch(cmd->sc_data_direction){
1117         case DMA_TO_DEVICE:
1118                 flag = SRB_DataOut;
1119                 break;
1120         case DMA_BIDIRECTIONAL:
1121                 flag = SRB_DataIn | SRB_DataOut;
1122                 break;
1123         case DMA_FROM_DEVICE:
1124                 flag = SRB_DataIn;
1125                 break;
1126         case DMA_NONE:
1127         default:        /* shuts up some versions of gcc */
1128                 flag = SRB_NoDataXfer;
1129                 break;
1130         }
1131
1132         srbcmd = (struct aac_srb*) fib_data(fib);
1133         srbcmd->function = cpu_to_le32(SRBF_ExecuteScsi);
1134         srbcmd->channel  = cpu_to_le32(aac_logical_to_phys(scmd_channel(cmd)));
1135         srbcmd->id       = cpu_to_le32(scmd_id(cmd));
1136         srbcmd->lun      = cpu_to_le32(cmd->device->lun);
1137         srbcmd->flags    = cpu_to_le32(flag);
1138         timeout = cmd->timeout_per_command/HZ;
1139         if (timeout == 0)
1140                 timeout = 1;
1141         srbcmd->timeout  = cpu_to_le32(timeout);  // timeout in seconds
1142         srbcmd->retry_limit = 0; /* Obsolete parameter */
1143         srbcmd->cdb_size = cpu_to_le32(cmd->cmd_len);
1144         return srbcmd;
1145 }
1146
1147 static void aac_srb_callback(void *context, struct fib * fibptr);
1148
1149 static int aac_scsi_64(struct fib * fib, struct scsi_cmnd * cmd)
1150 {
1151         u16 fibsize;
1152         struct aac_srb * srbcmd = aac_scsi_common(fib, cmd);
1153
1154         aac_build_sg64(cmd, (struct sgmap64*) &srbcmd->sg);
1155         srbcmd->count = cpu_to_le32(scsi_bufflen(cmd));
1156
1157         memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
1158         memcpy(srbcmd->cdb, cmd->cmnd, cmd->cmd_len);
1159         /*
1160          *      Build Scatter/Gather list
1161          */
1162         fibsize = sizeof (struct aac_srb) - sizeof (struct sgentry) +
1163                 ((le32_to_cpu(srbcmd->sg.count) & 0xff) *
1164                  sizeof (struct sgentry64));
1165         BUG_ON (fibsize > (fib->dev->max_fib_size -
1166                                 sizeof(struct aac_fibhdr)));
1167
1168         /*
1169          *      Now send the Fib to the adapter
1170          */
1171         return aac_fib_send(ScsiPortCommand64, fib,
1172                                 fibsize, FsaNormal, 0, 1,
1173                                   (fib_callback) aac_srb_callback,
1174                                   (void *) cmd);
1175 }
1176
1177 static int aac_scsi_32(struct fib * fib, struct scsi_cmnd * cmd)
1178 {
1179         u16 fibsize;
1180         struct aac_srb * srbcmd = aac_scsi_common(fib, cmd);
1181
1182         aac_build_sg(cmd, (struct sgmap*)&srbcmd->sg);
1183         srbcmd->count = cpu_to_le32(scsi_bufflen(cmd));
1184
1185         memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
1186         memcpy(srbcmd->cdb, cmd->cmnd, cmd->cmd_len);
1187         /*
1188          *      Build Scatter/Gather list
1189          */
1190         fibsize = sizeof (struct aac_srb) +
1191                 (((le32_to_cpu(srbcmd->sg.count) & 0xff) - 1) *
1192                  sizeof (struct sgentry));
1193         BUG_ON (fibsize > (fib->dev->max_fib_size -
1194                                 sizeof(struct aac_fibhdr)));
1195
1196         /*
1197          *      Now send the Fib to the adapter
1198          */
1199         return aac_fib_send(ScsiPortCommand, fib, fibsize, FsaNormal, 0, 1,
1200                                   (fib_callback) aac_srb_callback, (void *) cmd);
1201 }
1202
1203 static int aac_scsi_32_64(struct fib * fib, struct scsi_cmnd * cmd)
1204 {
1205         if ((sizeof(dma_addr_t) > 4) &&
1206          (num_physpages > (0xFFFFFFFFULL >> PAGE_SHIFT)) &&
1207          (fib->dev->adapter_info.options & AAC_OPT_SGMAP_HOST64))
1208                 return FAILED;
1209         return aac_scsi_32(fib, cmd);
1210 }
1211
1212 int aac_get_adapter_info(struct aac_dev* dev)
1213 {
1214         struct fib* fibptr;
1215         int rcode;
1216         u32 tmp;
1217         struct aac_adapter_info *info;
1218         struct aac_bus_info *command;
1219         struct aac_bus_info_response *bus_info;
1220
1221         if (!(fibptr = aac_fib_alloc(dev)))
1222                 return -ENOMEM;
1223
1224         aac_fib_init(fibptr);
1225         info = (struct aac_adapter_info *) fib_data(fibptr);
1226         memset(info,0,sizeof(*info));
1227
1228         rcode = aac_fib_send(RequestAdapterInfo,
1229                          fibptr,
1230                          sizeof(*info),
1231                          FsaNormal,
1232                          -1, 1, /* First `interrupt' command uses special wait */
1233                          NULL,
1234                          NULL);
1235
1236         if (rcode < 0) {
1237                 aac_fib_complete(fibptr);
1238                 aac_fib_free(fibptr);
1239                 return rcode;
1240         }
1241         memcpy(&dev->adapter_info, info, sizeof(*info));
1242
1243         if (dev->adapter_info.options & AAC_OPT_SUPPLEMENT_ADAPTER_INFO) {
1244                 struct aac_supplement_adapter_info * sinfo;
1245
1246                 aac_fib_init(fibptr);
1247
1248                 sinfo = (struct aac_supplement_adapter_info *) fib_data(fibptr);
1249
1250                 memset(sinfo,0,sizeof(*sinfo));
1251
1252                 rcode = aac_fib_send(RequestSupplementAdapterInfo,
1253                                  fibptr,
1254                                  sizeof(*sinfo),
1255                                  FsaNormal,
1256                                  1, 1,
1257                                  NULL,
1258                                  NULL);
1259
1260                 if (rcode >= 0)
1261                         memcpy(&dev->supplement_adapter_info, sinfo, sizeof(*sinfo));
1262         }
1263
1264
1265         /*
1266          * GetBusInfo
1267          */
1268
1269         aac_fib_init(fibptr);
1270
1271         bus_info = (struct aac_bus_info_response *) fib_data(fibptr);
1272
1273         memset(bus_info, 0, sizeof(*bus_info));
1274
1275         command = (struct aac_bus_info *)bus_info;
1276
1277         command->Command = cpu_to_le32(VM_Ioctl);
1278         command->ObjType = cpu_to_le32(FT_DRIVE);
1279         command->MethodId = cpu_to_le32(1);
1280         command->CtlCmd = cpu_to_le32(GetBusInfo);
1281
1282         rcode = aac_fib_send(ContainerCommand,
1283                          fibptr,
1284                          sizeof (*bus_info),
1285                          FsaNormal,
1286                          1, 1,
1287                          NULL, NULL);
1288
1289         /* reasoned default */
1290         dev->maximum_num_physicals = 16;
1291         if (rcode >= 0 && le32_to_cpu(bus_info->Status) == ST_OK) {
1292                 dev->maximum_num_physicals = le32_to_cpu(bus_info->TargetsPerBus);
1293                 dev->maximum_num_channels = le32_to_cpu(bus_info->BusCount);
1294         }
1295
1296         if (!dev->in_reset) {
1297                 char buffer[16];
1298                 tmp = le32_to_cpu(dev->adapter_info.kernelrev);
1299                 printk(KERN_INFO "%s%d: kernel %d.%d-%d[%d] %.*s\n",
1300                         dev->name,
1301                         dev->id,
1302                         tmp>>24,
1303                         (tmp>>16)&0xff,
1304                         tmp&0xff,
1305                         le32_to_cpu(dev->adapter_info.kernelbuild),
1306                         (int)sizeof(dev->supplement_adapter_info.BuildDate),
1307                         dev->supplement_adapter_info.BuildDate);
1308                 tmp = le32_to_cpu(dev->adapter_info.monitorrev);
1309                 printk(KERN_INFO "%s%d: monitor %d.%d-%d[%d]\n",
1310                         dev->name, dev->id,
1311                         tmp>>24,(tmp>>16)&0xff,tmp&0xff,
1312                         le32_to_cpu(dev->adapter_info.monitorbuild));
1313                 tmp = le32_to_cpu(dev->adapter_info.biosrev);
1314                 printk(KERN_INFO "%s%d: bios %d.%d-%d[%d]\n",
1315                         dev->name, dev->id,
1316                         tmp>>24,(tmp>>16)&0xff,tmp&0xff,
1317                         le32_to_cpu(dev->adapter_info.biosbuild));
1318                 buffer[0] = '\0';
1319                 if (aac_get_serial_number(
1320                   shost_to_class(dev->scsi_host_ptr), buffer))
1321                         printk(KERN_INFO "%s%d: serial %s",
1322                           dev->name, dev->id, buffer);
1323                 if (dev->supplement_adapter_info.VpdInfo.Tsid[0]) {
1324                         printk(KERN_INFO "%s%d: TSID %.*s\n",
1325                           dev->name, dev->id,
1326                           (int)sizeof(dev->supplement_adapter_info.VpdInfo.Tsid),
1327                           dev->supplement_adapter_info.VpdInfo.Tsid);
1328                 }
1329                 if (!aac_check_reset || ((aac_check_reset == 1) &&
1330                   (dev->supplement_adapter_info.SupportedOptions2 &
1331                   AAC_OPTION_IGNORE_RESET))) {
1332                         printk(KERN_INFO "%s%d: Reset Adapter Ignored\n",
1333                           dev->name, dev->id);
1334                 }
1335         }
1336
1337         dev->cache_protected = 0;
1338         dev->jbod = ((dev->supplement_adapter_info.FeatureBits &
1339                 AAC_FEATURE_JBOD) != 0);
1340         dev->nondasd_support = 0;
1341         dev->raid_scsi_mode = 0;
1342         if(dev->adapter_info.options & AAC_OPT_NONDASD)
1343                 dev->nondasd_support = 1;
1344
1345         /*
1346          * If the firmware supports ROMB RAID/SCSI mode and we are currently
1347          * in RAID/SCSI mode, set the flag. For now if in this mode we will
1348          * force nondasd support on. If we decide to allow the non-dasd flag
1349          * additional changes changes will have to be made to support
1350          * RAID/SCSI.  the function aac_scsi_cmd in this module will have to be
1351          * changed to support the new dev->raid_scsi_mode flag instead of
1352          * leaching off of the dev->nondasd_support flag. Also in linit.c the
1353          * function aac_detect will have to be modified where it sets up the
1354          * max number of channels based on the aac->nondasd_support flag only.
1355          */
1356         if ((dev->adapter_info.options & AAC_OPT_SCSI_MANAGED) &&
1357             (dev->adapter_info.options & AAC_OPT_RAID_SCSI_MODE)) {
1358                 dev->nondasd_support = 1;
1359                 dev->raid_scsi_mode = 1;
1360         }
1361         if (dev->raid_scsi_mode != 0)
1362                 printk(KERN_INFO "%s%d: ROMB RAID/SCSI mode enabled\n",
1363                                 dev->name, dev->id);
1364
1365         if (nondasd != -1)
1366                 dev->nondasd_support = (nondasd!=0);
1367         if (dev->nondasd_support && !dev->in_reset)
1368                 printk(KERN_INFO "%s%d: Non-DASD support enabled.\n",dev->name, dev->id);
1369
1370         dev->dac_support = 0;
1371         if( (sizeof(dma_addr_t) > 4) && (dev->adapter_info.options & AAC_OPT_SGMAP_HOST64)){
1372                 if (!dev->in_reset)
1373                         printk(KERN_INFO "%s%d: 64bit support enabled.\n",
1374                                 dev->name, dev->id);
1375                 dev->dac_support = 1;
1376         }
1377
1378         if(dacmode != -1) {
1379                 dev->dac_support = (dacmode!=0);
1380         }
1381         if(dev->dac_support != 0) {
1382                 if (!pci_set_dma_mask(dev->pdev, DMA_64BIT_MASK) &&
1383                         !pci_set_consistent_dma_mask(dev->pdev, DMA_64BIT_MASK)) {
1384                         if (!dev->in_reset)
1385                                 printk(KERN_INFO"%s%d: 64 Bit DAC enabled\n",
1386                                         dev->name, dev->id);
1387                 } else if (!pci_set_dma_mask(dev->pdev, DMA_32BIT_MASK) &&
1388                         !pci_set_consistent_dma_mask(dev->pdev, DMA_32BIT_MASK)) {
1389                         printk(KERN_INFO"%s%d: DMA mask set failed, 64 Bit DAC disabled\n",
1390                                 dev->name, dev->id);
1391                         dev->dac_support = 0;
1392                 } else {
1393                         printk(KERN_WARNING"%s%d: No suitable DMA available.\n",
1394                                 dev->name, dev->id);
1395                         rcode = -ENOMEM;
1396                 }
1397         }
1398         /*
1399          * Deal with configuring for the individualized limits of each packet
1400          * interface.
1401          */
1402         dev->a_ops.adapter_scsi = (dev->dac_support)
1403           ? ((aac_get_driver_ident(dev->cardtype)->quirks & AAC_QUIRK_SCSI_32)
1404                                 ? aac_scsi_32_64
1405                                 : aac_scsi_64)
1406                                 : aac_scsi_32;
1407         if (dev->raw_io_interface) {
1408                 dev->a_ops.adapter_bounds = (dev->raw_io_64)
1409                                         ? aac_bounds_64
1410                                         : aac_bounds_32;
1411                 dev->a_ops.adapter_read = aac_read_raw_io;
1412                 dev->a_ops.adapter_write = aac_write_raw_io;
1413         } else {
1414                 dev->a_ops.adapter_bounds = aac_bounds_32;
1415                 dev->scsi_host_ptr->sg_tablesize = (dev->max_fib_size -
1416                         sizeof(struct aac_fibhdr) -
1417                         sizeof(struct aac_write) + sizeof(struct sgentry)) /
1418                                 sizeof(struct sgentry);
1419                 if (dev->dac_support) {
1420                         dev->a_ops.adapter_read = aac_read_block64;
1421                         dev->a_ops.adapter_write = aac_write_block64;
1422                         /*
1423                          * 38 scatter gather elements
1424                          */
1425                         dev->scsi_host_ptr->sg_tablesize =
1426                                 (dev->max_fib_size -
1427                                 sizeof(struct aac_fibhdr) -
1428                                 sizeof(struct aac_write64) +
1429                                 sizeof(struct sgentry64)) /
1430                                         sizeof(struct sgentry64);
1431                 } else {
1432                         dev->a_ops.adapter_read = aac_read_block;
1433                         dev->a_ops.adapter_write = aac_write_block;
1434                 }
1435                 dev->scsi_host_ptr->max_sectors = AAC_MAX_32BIT_SGBCOUNT;
1436                 if(!(dev->adapter_info.options & AAC_OPT_NEW_COMM)) {
1437                         /*
1438                          * Worst case size that could cause sg overflow when
1439                          * we break up SG elements that are larger than 64KB.
1440                          * Would be nice if we could tell the SCSI layer what
1441                          * the maximum SG element size can be. Worst case is
1442                          * (sg_tablesize-1) 4KB elements with one 64KB
1443                          * element.
1444                          *      32bit -> 468 or 238KB   64bit -> 424 or 212KB
1445                          */
1446                         dev->scsi_host_ptr->max_sectors =
1447                           (dev->scsi_host_ptr->sg_tablesize * 8) + 112;
1448                 }
1449         }
1450
1451         aac_fib_complete(fibptr);
1452         aac_fib_free(fibptr);
1453
1454         return rcode;
1455 }
1456
1457
1458 static void io_callback(void *context, struct fib * fibptr)
1459 {
1460         struct aac_dev *dev;
1461         struct aac_read_reply *readreply;
1462         struct scsi_cmnd *scsicmd;
1463         u32 cid;
1464
1465         scsicmd = (struct scsi_cmnd *) context;
1466
1467         if (!aac_valid_context(scsicmd, fibptr))
1468                 return;
1469
1470         dev = fibptr->dev;
1471         cid = scmd_id(scsicmd);
1472
1473         if (nblank(dprintk(x))) {
1474                 u64 lba;
1475                 switch (scsicmd->cmnd[0]) {
1476                 case WRITE_6:
1477                 case READ_6:
1478                         lba = ((scsicmd->cmnd[1] & 0x1F) << 16) |
1479                             (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
1480                         break;
1481                 case WRITE_16:
1482                 case READ_16:
1483                         lba = ((u64)scsicmd->cmnd[2] << 56) |
1484                               ((u64)scsicmd->cmnd[3] << 48) |
1485                               ((u64)scsicmd->cmnd[4] << 40) |
1486                               ((u64)scsicmd->cmnd[5] << 32) |
1487                               ((u64)scsicmd->cmnd[6] << 24) |
1488                               (scsicmd->cmnd[7] << 16) |
1489                               (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1490                         break;
1491                 case WRITE_12:
1492                 case READ_12:
1493                         lba = ((u64)scsicmd->cmnd[2] << 24) |
1494                               (scsicmd->cmnd[3] << 16) |
1495                               (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1496                         break;
1497                 default:
1498                         lba = ((u64)scsicmd->cmnd[2] << 24) |
1499                                (scsicmd->cmnd[3] << 16) |
1500                                (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1501                         break;
1502                 }
1503                 printk(KERN_DEBUG
1504                   "io_callback[cpu %d]: lba = %llu, t = %ld.\n",
1505                   smp_processor_id(), (unsigned long long)lba, jiffies);
1506         }
1507
1508         BUG_ON(fibptr == NULL);
1509
1510         scsi_dma_unmap(scsicmd);
1511
1512         readreply = (struct aac_read_reply *)fib_data(fibptr);
1513         if (le32_to_cpu(readreply->status) == ST_OK)
1514                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1515         else {
1516 #ifdef AAC_DETAILED_STATUS_INFO
1517                 printk(KERN_WARNING "io_callback: io failed, status = %d\n",
1518                   le32_to_cpu(readreply->status));
1519 #endif
1520                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1521                 set_sense(&dev->fsa_dev[cid].sense_data,
1522                   HARDWARE_ERROR, SENCODE_INTERNAL_TARGET_FAILURE,
1523                   ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0);
1524                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1525                        min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
1526                              SCSI_SENSE_BUFFERSIZE));
1527         }
1528         aac_fib_complete(fibptr);
1529         aac_fib_free(fibptr);
1530
1531         scsicmd->scsi_done(scsicmd);
1532 }
1533
1534 static int aac_read(struct scsi_cmnd * scsicmd)
1535 {
1536         u64 lba;
1537         u32 count;
1538         int status;
1539         struct aac_dev *dev;
1540         struct fib * cmd_fibcontext;
1541
1542         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1543         /*
1544          *      Get block address and transfer length
1545          */
1546         switch (scsicmd->cmnd[0]) {
1547         case READ_6:
1548                 dprintk((KERN_DEBUG "aachba: received a read(6) command on id %d.\n", scmd_id(scsicmd)));
1549
1550                 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) |
1551                         (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
1552                 count = scsicmd->cmnd[4];
1553
1554                 if (count == 0)
1555                         count = 256;
1556                 break;
1557         case READ_16:
1558                 dprintk((KERN_DEBUG "aachba: received a read(16) command on id %d.\n", scmd_id(scsicmd)));
1559
1560                 lba =   ((u64)scsicmd->cmnd[2] << 56) |
1561                         ((u64)scsicmd->cmnd[3] << 48) |
1562                         ((u64)scsicmd->cmnd[4] << 40) |
1563                         ((u64)scsicmd->cmnd[5] << 32) |
1564                         ((u64)scsicmd->cmnd[6] << 24) |
1565                         (scsicmd->cmnd[7] << 16) |
1566                         (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1567                 count = (scsicmd->cmnd[10] << 24) |
1568                         (scsicmd->cmnd[11] << 16) |
1569                         (scsicmd->cmnd[12] << 8) | scsicmd->cmnd[13];
1570                 break;
1571         case READ_12:
1572                 dprintk((KERN_DEBUG "aachba: received a read(12) command on id %d.\n", scmd_id(scsicmd)));
1573
1574                 lba = ((u64)scsicmd->cmnd[2] << 24) |
1575                         (scsicmd->cmnd[3] << 16) |
1576                         (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1577                 count = (scsicmd->cmnd[6] << 24) |
1578                         (scsicmd->cmnd[7] << 16) |
1579                         (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1580                 break;
1581         default:
1582                 dprintk((KERN_DEBUG "aachba: received a read(10) command on id %d.\n", scmd_id(scsicmd)));
1583
1584                 lba = ((u64)scsicmd->cmnd[2] << 24) |
1585                         (scsicmd->cmnd[3] << 16) |
1586                         (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1587                 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
1588                 break;
1589         }
1590         dprintk((KERN_DEBUG "aac_read[cpu %d]: lba = %llu, t = %ld.\n",
1591           smp_processor_id(), (unsigned long long)lba, jiffies));
1592         if (aac_adapter_bounds(dev,scsicmd,lba))
1593                 return 0;
1594         /*
1595          *      Alocate and initialize a Fib
1596          */
1597         if (!(cmd_fibcontext = aac_fib_alloc(dev))) {
1598                 return -1;
1599         }
1600
1601         status = aac_adapter_read(cmd_fibcontext, scsicmd, lba, count);
1602
1603         /*
1604          *      Check that the command queued to the controller
1605          */
1606         if (status == -EINPROGRESS) {
1607                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
1608                 return 0;
1609         }
1610
1611         printk(KERN_WARNING "aac_read: aac_fib_send failed with status: %d.\n", status);
1612         /*
1613          *      For some reason, the Fib didn't queue, return QUEUE_FULL
1614          */
1615         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_TASK_SET_FULL;
1616         scsicmd->scsi_done(scsicmd);
1617         aac_fib_complete(cmd_fibcontext);
1618         aac_fib_free(cmd_fibcontext);
1619         return 0;
1620 }
1621
1622 static int aac_write(struct scsi_cmnd * scsicmd)
1623 {
1624         u64 lba;
1625         u32 count;
1626         int fua;
1627         int status;
1628         struct aac_dev *dev;
1629         struct fib * cmd_fibcontext;
1630
1631         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1632         /*
1633          *      Get block address and transfer length
1634          */
1635         if (scsicmd->cmnd[0] == WRITE_6)        /* 6 byte command */
1636         {
1637                 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
1638                 count = scsicmd->cmnd[4];
1639                 if (count == 0)
1640                         count = 256;
1641                 fua = 0;
1642         } else if (scsicmd->cmnd[0] == WRITE_16) { /* 16 byte command */
1643                 dprintk((KERN_DEBUG "aachba: received a write(16) command on id %d.\n", scmd_id(scsicmd)));
1644
1645                 lba =   ((u64)scsicmd->cmnd[2] << 56) |
1646                         ((u64)scsicmd->cmnd[3] << 48) |
1647                         ((u64)scsicmd->cmnd[4] << 40) |
1648                         ((u64)scsicmd->cmnd[5] << 32) |
1649                         ((u64)scsicmd->cmnd[6] << 24) |
1650                         (scsicmd->cmnd[7] << 16) |
1651                         (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1652                 count = (scsicmd->cmnd[10] << 24) | (scsicmd->cmnd[11] << 16) |
1653                         (scsicmd->cmnd[12] << 8) | scsicmd->cmnd[13];
1654                 fua = scsicmd->cmnd[1] & 0x8;
1655         } else if (scsicmd->cmnd[0] == WRITE_12) { /* 12 byte command */
1656                 dprintk((KERN_DEBUG "aachba: received a write(12) command on id %d.\n", scmd_id(scsicmd)));
1657
1658                 lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16)
1659                     | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1660                 count = (scsicmd->cmnd[6] << 24) | (scsicmd->cmnd[7] << 16)
1661                       | (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1662                 fua = scsicmd->cmnd[1] & 0x8;
1663         } else {
1664                 dprintk((KERN_DEBUG "aachba: received a write(10) command on id %d.\n", scmd_id(scsicmd)));
1665                 lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1666                 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
1667                 fua = scsicmd->cmnd[1] & 0x8;
1668         }
1669         dprintk((KERN_DEBUG "aac_write[cpu %d]: lba = %llu, t = %ld.\n",
1670           smp_processor_id(), (unsigned long long)lba, jiffies));
1671         if (aac_adapter_bounds(dev,scsicmd,lba))
1672                 return 0;
1673         /*
1674          *      Allocate and initialize a Fib then setup a BlockWrite command
1675          */
1676         if (!(cmd_fibcontext = aac_fib_alloc(dev))) {
1677                 scsicmd->result = DID_ERROR << 16;
1678                 scsicmd->scsi_done(scsicmd);
1679                 return 0;
1680         }
1681
1682         status = aac_adapter_write(cmd_fibcontext, scsicmd, lba, count, fua);
1683
1684         /*
1685          *      Check that the command queued to the controller
1686          */
1687         if (status == -EINPROGRESS) {
1688                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
1689                 return 0;
1690         }
1691
1692         printk(KERN_WARNING "aac_write: aac_fib_send failed with status: %d\n", status);
1693         /*
1694          *      For some reason, the Fib didn't queue, return QUEUE_FULL
1695          */
1696         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_TASK_SET_FULL;
1697         scsicmd->scsi_done(scsicmd);
1698
1699         aac_fib_complete(cmd_fibcontext);
1700         aac_fib_free(cmd_fibcontext);
1701         return 0;
1702 }
1703
1704 static void synchronize_callback(void *context, struct fib *fibptr)
1705 {
1706         struct aac_synchronize_reply *synchronizereply;
1707         struct scsi_cmnd *cmd;
1708
1709         cmd = context;
1710
1711         if (!aac_valid_context(cmd, fibptr))
1712                 return;
1713
1714         dprintk((KERN_DEBUG "synchronize_callback[cpu %d]: t = %ld.\n",
1715                                 smp_processor_id(), jiffies));
1716         BUG_ON(fibptr == NULL);
1717
1718
1719         synchronizereply = fib_data(fibptr);
1720         if (le32_to_cpu(synchronizereply->status) == CT_OK)
1721                 cmd->result = DID_OK << 16 |
1722                         COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1723         else {
1724                 struct scsi_device *sdev = cmd->device;
1725                 struct aac_dev *dev = fibptr->dev;
1726                 u32 cid = sdev_id(sdev);
1727                 printk(KERN_WARNING
1728                      "synchronize_callback: synchronize failed, status = %d\n",
1729                      le32_to_cpu(synchronizereply->status));
1730                 cmd->result = DID_OK << 16 |
1731                         COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1732                 set_sense(&dev->fsa_dev[cid].sense_data,
1733                   HARDWARE_ERROR, SENCODE_INTERNAL_TARGET_FAILURE,
1734                   ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0);
1735                 memcpy(cmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1736                        min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
1737                              SCSI_SENSE_BUFFERSIZE));
1738         }
1739
1740         aac_fib_complete(fibptr);
1741         aac_fib_free(fibptr);
1742         cmd->scsi_done(cmd);
1743 }
1744
1745 static int aac_synchronize(struct scsi_cmnd *scsicmd)
1746 {
1747         int status;
1748         struct fib *cmd_fibcontext;
1749         struct aac_synchronize *synchronizecmd;
1750         struct scsi_cmnd *cmd;
1751         struct scsi_device *sdev = scsicmd->device;
1752         int active = 0;
1753         struct aac_dev *aac;
1754         u64 lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) |
1755                 (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1756         u32 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
1757         unsigned long flags;
1758
1759         /*
1760          * Wait for all outstanding queued commands to complete to this
1761          * specific target (block).
1762          */
1763         spin_lock_irqsave(&sdev->list_lock, flags);
1764         list_for_each_entry(cmd, &sdev->cmd_list, list)
1765                 if (cmd->SCp.phase == AAC_OWNER_FIRMWARE) {
1766                         u64 cmnd_lba;
1767                         u32 cmnd_count;
1768
1769                         if (cmd->cmnd[0] == WRITE_6) {
1770                                 cmnd_lba = ((cmd->cmnd[1] & 0x1F) << 16) |
1771                                         (cmd->cmnd[2] << 8) |
1772                                         cmd->cmnd[3];
1773                                 cmnd_count = cmd->cmnd[4];
1774                                 if (cmnd_count == 0)
1775                                         cmnd_count = 256;
1776                         } else if (cmd->cmnd[0] == WRITE_16) {
1777                                 cmnd_lba = ((u64)cmd->cmnd[2] << 56) |
1778                                         ((u64)cmd->cmnd[3] << 48) |
1779                                         ((u64)cmd->cmnd[4] << 40) |
1780                                         ((u64)cmd->cmnd[5] << 32) |
1781                                         ((u64)cmd->cmnd[6] << 24) |
1782                                         (cmd->cmnd[7] << 16) |
1783                                         (cmd->cmnd[8] << 8) |
1784                                         cmd->cmnd[9];
1785                                 cmnd_count = (cmd->cmnd[10] << 24) |
1786                                         (cmd->cmnd[11] << 16) |
1787                                         (cmd->cmnd[12] << 8) |
1788                                         cmd->cmnd[13];
1789                         } else if (cmd->cmnd[0] == WRITE_12) {
1790                                 cmnd_lba = ((u64)cmd->cmnd[2] << 24) |
1791                                         (cmd->cmnd[3] << 16) |
1792                                         (cmd->cmnd[4] << 8) |
1793                                         cmd->cmnd[5];
1794                                 cmnd_count = (cmd->cmnd[6] << 24) |
1795                                         (cmd->cmnd[7] << 16) |
1796                                         (cmd->cmnd[8] << 8) |
1797                                         cmd->cmnd[9];
1798                         } else if (cmd->cmnd[0] == WRITE_10) {
1799                                 cmnd_lba = ((u64)cmd->cmnd[2] << 24) |
1800                                         (cmd->cmnd[3] << 16) |
1801                                         (cmd->cmnd[4] << 8) |
1802                                         cmd->cmnd[5];
1803                                 cmnd_count = (cmd->cmnd[7] << 8) |
1804                                         cmd->cmnd[8];
1805                         } else
1806                                 continue;
1807                         if (((cmnd_lba + cmnd_count) < lba) ||
1808                           (count && ((lba + count) < cmnd_lba)))
1809                                 continue;
1810                         ++active;
1811                         break;
1812                 }
1813
1814         spin_unlock_irqrestore(&sdev->list_lock, flags);
1815
1816         /*
1817          *      Yield the processor (requeue for later)
1818          */
1819         if (active)
1820                 return SCSI_MLQUEUE_DEVICE_BUSY;
1821
1822         aac = (struct aac_dev *)sdev->host->hostdata;
1823         if (aac->in_reset)
1824                 return SCSI_MLQUEUE_HOST_BUSY;
1825
1826         /*
1827          *      Allocate and initialize a Fib
1828          */
1829         if (!(cmd_fibcontext = aac_fib_alloc(aac)))
1830                 return SCSI_MLQUEUE_HOST_BUSY;
1831
1832         aac_fib_init(cmd_fibcontext);
1833
1834         synchronizecmd = fib_data(cmd_fibcontext);
1835         synchronizecmd->command = cpu_to_le32(VM_ContainerConfig);
1836         synchronizecmd->type = cpu_to_le32(CT_FLUSH_CACHE);
1837         synchronizecmd->cid = cpu_to_le32(scmd_id(scsicmd));
1838         synchronizecmd->count =
1839              cpu_to_le32(sizeof(((struct aac_synchronize_reply *)NULL)->data));
1840
1841         /*
1842          *      Now send the Fib to the adapter
1843          */
1844         status = aac_fib_send(ContainerCommand,
1845                   cmd_fibcontext,
1846                   sizeof(struct aac_synchronize),
1847                   FsaNormal,
1848                   0, 1,
1849                   (fib_callback)synchronize_callback,
1850                   (void *)scsicmd);
1851
1852         /*
1853          *      Check that the command queued to the controller
1854          */
1855         if (status == -EINPROGRESS) {
1856                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
1857                 return 0;
1858         }
1859
1860         printk(KERN_WARNING
1861                 "aac_synchronize: aac_fib_send failed with status: %d.\n", status);
1862         aac_fib_complete(cmd_fibcontext);
1863         aac_fib_free(cmd_fibcontext);
1864         return SCSI_MLQUEUE_HOST_BUSY;
1865 }
1866
1867 /**
1868  *      aac_scsi_cmd()          -       Process SCSI command
1869  *      @scsicmd:               SCSI command block
1870  *
1871  *      Emulate a SCSI command and queue the required request for the
1872  *      aacraid firmware.
1873  */
1874
1875 int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
1876 {
1877         u32 cid;
1878         struct Scsi_Host *host = scsicmd->device->host;
1879         struct aac_dev *dev = (struct aac_dev *)host->hostdata;
1880         struct fsa_dev_info *fsa_dev_ptr = dev->fsa_dev;
1881
1882         if (fsa_dev_ptr == NULL)
1883                 return -1;
1884         /*
1885          *      If the bus, id or lun is out of range, return fail
1886          *      Test does not apply to ID 16, the pseudo id for the controller
1887          *      itself.
1888          */
1889         cid = scmd_id(scsicmd);
1890         if (cid != host->this_id) {
1891                 if (scmd_channel(scsicmd) == CONTAINER_CHANNEL) {
1892                         if((cid >= dev->maximum_num_containers) ||
1893                                         (scsicmd->device->lun != 0)) {
1894                                 scsicmd->result = DID_NO_CONNECT << 16;
1895                                 scsicmd->scsi_done(scsicmd);
1896                                 return 0;
1897                         }
1898
1899                         /*
1900                          *      If the target container doesn't exist, it may have
1901                          *      been newly created
1902                          */
1903                         if ((fsa_dev_ptr[cid].valid & 1) == 0) {
1904                                 switch (scsicmd->cmnd[0]) {
1905                                 case SERVICE_ACTION_IN:
1906                                         if (!(dev->raw_io_interface) ||
1907                                             !(dev->raw_io_64) ||
1908                                             ((scsicmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16))
1909                                                 break;
1910                                 case INQUIRY:
1911                                 case READ_CAPACITY:
1912                                 case TEST_UNIT_READY:
1913                                         if (dev->in_reset)
1914                                                 return -1;
1915                                         return _aac_probe_container(scsicmd,
1916                                                         aac_probe_container_callback2);
1917                                 default:
1918                                         break;
1919                                 }
1920                         }
1921                 } else {  /* check for physical non-dasd devices */
1922                         if (dev->nondasd_support || expose_physicals ||
1923                                         dev->jbod) {
1924                                 if (dev->in_reset)
1925                                         return -1;
1926                                 return aac_send_srb_fib(scsicmd);
1927                         } else {
1928                                 scsicmd->result = DID_NO_CONNECT << 16;
1929                                 scsicmd->scsi_done(scsicmd);
1930                                 return 0;
1931                         }
1932                 }
1933         }
1934         /*
1935          * else Command for the controller itself
1936          */
1937         else if ((scsicmd->cmnd[0] != INQUIRY) &&       /* only INQUIRY & TUR cmnd supported for controller */
1938                 (scsicmd->cmnd[0] != TEST_UNIT_READY))
1939         {
1940                 dprintk((KERN_WARNING "Only INQUIRY & TUR command supported for controller, rcvd = 0x%x.\n", scsicmd->cmnd[0]));
1941                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1942                 set_sense(&dev->fsa_dev[cid].sense_data,
1943                   ILLEGAL_REQUEST, SENCODE_INVALID_COMMAND,
1944                   ASENCODE_INVALID_COMMAND, 0, 0);
1945                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1946                        min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
1947                              SCSI_SENSE_BUFFERSIZE));
1948                 scsicmd->scsi_done(scsicmd);
1949                 return 0;
1950         }
1951
1952
1953         /* Handle commands here that don't really require going out to the adapter */
1954         switch (scsicmd->cmnd[0]) {
1955         case INQUIRY:
1956         {
1957                 struct inquiry_data inq_data;
1958
1959                 dprintk((KERN_DEBUG "INQUIRY command, ID: %d.\n", cid));
1960                 memset(&inq_data, 0, sizeof (struct inquiry_data));
1961
1962                 if (scsicmd->cmnd[1] & 0x1) {
1963                         char *arr = (char *)&inq_data;
1964
1965                         /* EVPD bit set */
1966                         arr[0] = (scmd_id(scsicmd) == host->this_id) ?
1967                           INQD_PDT_PROC : INQD_PDT_DA;
1968                         if (scsicmd->cmnd[2] == 0) {
1969                                 /* supported vital product data pages */
1970                                 arr[3] = 2;
1971                                 arr[4] = 0x0;
1972                                 arr[5] = 0x80;
1973                                 arr[1] = scsicmd->cmnd[2];
1974                                 scsi_sg_copy_from_buffer(scsicmd, &inq_data,
1975                                                          sizeof(inq_data));
1976                                 scsicmd->result = DID_OK << 16 |
1977                                   COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1978                         } else if (scsicmd->cmnd[2] == 0x80) {
1979                                 /* unit serial number page */
1980                                 arr[3] = setinqserial(dev, &arr[4],
1981                                   scmd_id(scsicmd));
1982                                 arr[1] = scsicmd->cmnd[2];
1983                                 scsi_sg_copy_from_buffer(scsicmd, &inq_data,
1984                                                          sizeof(inq_data));
1985                                 return aac_get_container_serial(scsicmd);
1986                         } else {
1987                                 /* vpd page not implemented */
1988                                 scsicmd->result = DID_OK << 16 |
1989                                   COMMAND_COMPLETE << 8 |
1990                                   SAM_STAT_CHECK_CONDITION;
1991                                 set_sense(&dev->fsa_dev[cid].sense_data,
1992                                   ILLEGAL_REQUEST, SENCODE_INVALID_CDB_FIELD,
1993                                   ASENCODE_NO_SENSE, 7, 2);
1994                                 memcpy(scsicmd->sense_buffer,
1995                                   &dev->fsa_dev[cid].sense_data,
1996                                   min_t(size_t,
1997                                         sizeof(dev->fsa_dev[cid].sense_data),
1998                                         SCSI_SENSE_BUFFERSIZE));
1999                         }
2000                         scsicmd->scsi_done(scsicmd);
2001                         return 0;
2002                 }
2003                 inq_data.inqd_ver = 2;  /* claim compliance to SCSI-2 */
2004                 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 */
2005                 inq_data.inqd_len = 31;
2006                 /*Format for "pad2" is  RelAdr | WBus32 | WBus16 |  Sync  | Linked |Reserved| CmdQue | SftRe */
2007                 inq_data.inqd_pad2= 0x32 ;       /*WBus16|Sync|CmdQue */
2008                 /*
2009                  *      Set the Vendor, Product, and Revision Level
2010                  *      see: <vendor>.c i.e. aac.c
2011                  */
2012                 if (cid == host->this_id) {
2013                         setinqstr(dev, (void *) (inq_data.inqd_vid), ARRAY_SIZE(container_types));
2014                         inq_data.inqd_pdt = INQD_PDT_PROC;      /* Processor device */
2015                         scsi_sg_copy_from_buffer(scsicmd, &inq_data,
2016                                                  sizeof(inq_data));
2017                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2018                         scsicmd->scsi_done(scsicmd);
2019                         return 0;
2020                 }
2021                 if (dev->in_reset)
2022                         return -1;
2023                 setinqstr(dev, (void *) (inq_data.inqd_vid), fsa_dev_ptr[cid].type);
2024                 inq_data.inqd_pdt = INQD_PDT_DA;        /* Direct/random access device */
2025                 scsi_sg_copy_from_buffer(scsicmd, &inq_data, sizeof(inq_data));
2026                 return aac_get_container_name(scsicmd);
2027         }
2028         case SERVICE_ACTION_IN:
2029                 if (!(dev->raw_io_interface) ||
2030                     !(dev->raw_io_64) ||
2031                     ((scsicmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16))
2032                         break;
2033         {
2034                 u64 capacity;
2035                 char cp[13];
2036                 unsigned int alloc_len;
2037
2038                 dprintk((KERN_DEBUG "READ CAPACITY_16 command.\n"));
2039                 capacity = fsa_dev_ptr[cid].size - 1;
2040                 cp[0] = (capacity >> 56) & 0xff;
2041                 cp[1] = (capacity >> 48) & 0xff;
2042                 cp[2] = (capacity >> 40) & 0xff;
2043                 cp[3] = (capacity >> 32) & 0xff;
2044                 cp[4] = (capacity >> 24) & 0xff;
2045                 cp[5] = (capacity >> 16) & 0xff;
2046                 cp[6] = (capacity >> 8) & 0xff;
2047                 cp[7] = (capacity >> 0) & 0xff;
2048                 cp[8] = 0;
2049                 cp[9] = 0;
2050                 cp[10] = 2;
2051                 cp[11] = 0;
2052                 cp[12] = 0;
2053
2054                 alloc_len = ((scsicmd->cmnd[10] << 24)
2055                              + (scsicmd->cmnd[11] << 16)
2056                              + (scsicmd->cmnd[12] << 8) + scsicmd->cmnd[13]);
2057
2058                 alloc_len = min_t(size_t, alloc_len, sizeof(cp));
2059                 scsi_sg_copy_from_buffer(scsicmd, cp, alloc_len);
2060                 if (alloc_len < scsi_bufflen(scsicmd))
2061                         scsi_set_resid(scsicmd,
2062                                        scsi_bufflen(scsicmd) - alloc_len);
2063
2064                 /* Do not cache partition table for arrays */
2065                 scsicmd->device->removable = 1;
2066
2067                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2068                 scsicmd->scsi_done(scsicmd);
2069
2070                 return 0;
2071         }
2072
2073         case READ_CAPACITY:
2074         {
2075                 u32 capacity;
2076                 char cp[8];
2077
2078                 dprintk((KERN_DEBUG "READ CAPACITY command.\n"));
2079                 if (fsa_dev_ptr[cid].size <= 0x100000000ULL)
2080                         capacity = fsa_dev_ptr[cid].size - 1;
2081                 else
2082                         capacity = (u32)-1;
2083
2084                 cp[0] = (capacity >> 24) & 0xff;
2085                 cp[1] = (capacity >> 16) & 0xff;
2086                 cp[2] = (capacity >> 8) & 0xff;
2087                 cp[3] = (capacity >> 0) & 0xff;
2088                 cp[4] = 0;
2089                 cp[5] = 0;
2090                 cp[6] = 2;
2091                 cp[7] = 0;
2092                 scsi_sg_copy_from_buffer(scsicmd, cp, sizeof(cp));
2093                 /* Do not cache partition table for arrays */
2094                 scsicmd->device->removable = 1;
2095
2096                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2097                 scsicmd->scsi_done(scsicmd);
2098
2099                 return 0;
2100         }
2101
2102         case MODE_SENSE:
2103         {
2104                 char mode_buf[7];
2105                 int mode_buf_length = 4;
2106
2107                 dprintk((KERN_DEBUG "MODE SENSE command.\n"));
2108                 mode_buf[0] = 3;        /* Mode data length */
2109                 mode_buf[1] = 0;        /* Medium type - default */
2110                 mode_buf[2] = 0;        /* Device-specific param,
2111                                            bit 8: 0/1 = write enabled/protected
2112                                            bit 4: 0/1 = FUA enabled */
2113                 if (dev->raw_io_interface && ((aac_cache & 5) != 1))
2114                         mode_buf[2] = 0x10;
2115                 mode_buf[3] = 0;        /* Block descriptor length */
2116                 if (((scsicmd->cmnd[2] & 0x3f) == 8) ||
2117                   ((scsicmd->cmnd[2] & 0x3f) == 0x3f)) {
2118                         mode_buf[0] = 6;
2119                         mode_buf[4] = 8;
2120                         mode_buf[5] = 1;
2121                         mode_buf[6] = ((aac_cache & 6) == 2)
2122                                 ? 0 : 0x04; /* WCE */
2123                         mode_buf_length = 7;
2124                         if (mode_buf_length > scsicmd->cmnd[4])
2125                                 mode_buf_length = scsicmd->cmnd[4];
2126                 }
2127                 scsi_sg_copy_from_buffer(scsicmd, mode_buf, mode_buf_length);
2128                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2129                 scsicmd->scsi_done(scsicmd);
2130
2131                 return 0;
2132         }
2133         case MODE_SENSE_10:
2134         {
2135                 char mode_buf[11];
2136                 int mode_buf_length = 8;
2137
2138                 dprintk((KERN_DEBUG "MODE SENSE 10 byte command.\n"));
2139                 mode_buf[0] = 0;        /* Mode data length (MSB) */
2140                 mode_buf[1] = 6;        /* Mode data length (LSB) */
2141                 mode_buf[2] = 0;        /* Medium type - default */
2142                 mode_buf[3] = 0;        /* Device-specific param,
2143                                            bit 8: 0/1 = write enabled/protected
2144                                            bit 4: 0/1 = FUA enabled */
2145                 if (dev->raw_io_interface && ((aac_cache & 5) != 1))
2146                         mode_buf[3] = 0x10;
2147                 mode_buf[4] = 0;        /* reserved */
2148                 mode_buf[5] = 0;        /* reserved */
2149                 mode_buf[6] = 0;        /* Block descriptor length (MSB) */
2150                 mode_buf[7] = 0;        /* Block descriptor length (LSB) */
2151                 if (((scsicmd->cmnd[2] & 0x3f) == 8) ||
2152                   ((scsicmd->cmnd[2] & 0x3f) == 0x3f)) {
2153                         mode_buf[1] = 9;
2154                         mode_buf[8] = 8;
2155                         mode_buf[9] = 1;
2156                         mode_buf[10] = ((aac_cache & 6) == 2)
2157                                 ? 0 : 0x04; /* WCE */
2158                         mode_buf_length = 11;
2159                         if (mode_buf_length > scsicmd->cmnd[8])
2160                                 mode_buf_length = scsicmd->cmnd[8];
2161                 }
2162                 scsi_sg_copy_from_buffer(scsicmd, mode_buf, mode_buf_length);
2163
2164                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2165                 scsicmd->scsi_done(scsicmd);
2166
2167                 return 0;
2168         }
2169         case REQUEST_SENSE:
2170                 dprintk((KERN_DEBUG "REQUEST SENSE command.\n"));
2171                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data, sizeof (struct sense_data));
2172                 memset(&dev->fsa_dev[cid].sense_data, 0, sizeof (struct sense_data));
2173                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2174                 scsicmd->scsi_done(scsicmd);
2175                 return 0;
2176
2177         case ALLOW_MEDIUM_REMOVAL:
2178                 dprintk((KERN_DEBUG "LOCK command.\n"));
2179                 if (scsicmd->cmnd[4])
2180                         fsa_dev_ptr[cid].locked = 1;
2181                 else
2182                         fsa_dev_ptr[cid].locked = 0;
2183
2184                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2185                 scsicmd->scsi_done(scsicmd);
2186                 return 0;
2187         /*
2188          *      These commands are all No-Ops
2189          */
2190         case TEST_UNIT_READY:
2191         case RESERVE:
2192         case RELEASE:
2193         case REZERO_UNIT:
2194         case REASSIGN_BLOCKS:
2195         case SEEK_10:
2196         case START_STOP:
2197                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2198                 scsicmd->scsi_done(scsicmd);
2199                 return 0;
2200         }
2201
2202         switch (scsicmd->cmnd[0])
2203         {
2204                 case READ_6:
2205                 case READ_10:
2206                 case READ_12:
2207                 case READ_16:
2208                         if (dev->in_reset)
2209                                 return -1;
2210                         /*
2211                          *      Hack to keep track of ordinal number of the device that
2212                          *      corresponds to a container. Needed to convert
2213                          *      containers to /dev/sd device names
2214                          */
2215
2216                         if (scsicmd->request->rq_disk)
2217                                 strlcpy(fsa_dev_ptr[cid].devname,
2218                                 scsicmd->request->rq_disk->disk_name,
2219                                 min(sizeof(fsa_dev_ptr[cid].devname),
2220                                 sizeof(scsicmd->request->rq_disk->disk_name) + 1));
2221
2222                         return aac_read(scsicmd);
2223
2224                 case WRITE_6:
2225                 case WRITE_10:
2226                 case WRITE_12:
2227                 case WRITE_16:
2228                         if (dev->in_reset)
2229                                 return -1;
2230                         return aac_write(scsicmd);
2231
2232                 case SYNCHRONIZE_CACHE:
2233                         if (((aac_cache & 6) == 6) && dev->cache_protected) {
2234                                 scsicmd->result = DID_OK << 16 |
2235                                         COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2236                                 scsicmd->scsi_done(scsicmd);
2237                                 return 0;
2238                         }
2239                         /* Issue FIB to tell Firmware to flush it's cache */
2240                         if ((aac_cache & 6) != 2)
2241                                 return aac_synchronize(scsicmd);
2242                         /* FALLTHRU */
2243                 default:
2244                         /*
2245                          *      Unhandled commands
2246                          */
2247                         dprintk((KERN_WARNING "Unhandled SCSI Command: 0x%x.\n", scsicmd->cmnd[0]));
2248                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
2249                         set_sense(&dev->fsa_dev[cid].sense_data,
2250                           ILLEGAL_REQUEST, SENCODE_INVALID_COMMAND,
2251                           ASENCODE_INVALID_COMMAND, 0, 0);
2252                         memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
2253                                 min_t(size_t,
2254                                       sizeof(dev->fsa_dev[cid].sense_data),
2255                                       SCSI_SENSE_BUFFERSIZE));
2256                         scsicmd->scsi_done(scsicmd);
2257                         return 0;
2258         }
2259 }
2260
2261 static int query_disk(struct aac_dev *dev, void __user *arg)
2262 {
2263         struct aac_query_disk qd;
2264         struct fsa_dev_info *fsa_dev_ptr;
2265
2266         fsa_dev_ptr = dev->fsa_dev;
2267         if (!fsa_dev_ptr)
2268                 return -EBUSY;
2269         if (copy_from_user(&qd, arg, sizeof (struct aac_query_disk)))
2270                 return -EFAULT;
2271         if (qd.cnum == -1)
2272                 qd.cnum = qd.id;
2273         else if ((qd.bus == -1) && (qd.id == -1) && (qd.lun == -1))
2274         {
2275                 if (qd.cnum < 0 || qd.cnum >= dev->maximum_num_containers)
2276                         return -EINVAL;
2277                 qd.instance = dev->scsi_host_ptr->host_no;
2278                 qd.bus = 0;
2279                 qd.id = CONTAINER_TO_ID(qd.cnum);
2280                 qd.lun = CONTAINER_TO_LUN(qd.cnum);
2281         }
2282         else return -EINVAL;
2283
2284         qd.valid = fsa_dev_ptr[qd.cnum].valid != 0;
2285         qd.locked = fsa_dev_ptr[qd.cnum].locked;
2286         qd.deleted = fsa_dev_ptr[qd.cnum].deleted;
2287
2288         if (fsa_dev_ptr[qd.cnum].devname[0] == '\0')
2289                 qd.unmapped = 1;
2290         else
2291                 qd.unmapped = 0;
2292
2293         strlcpy(qd.name, fsa_dev_ptr[qd.cnum].devname,
2294           min(sizeof(qd.name), sizeof(fsa_dev_ptr[qd.cnum].devname) + 1));
2295
2296         if (copy_to_user(arg, &qd, sizeof (struct aac_query_disk)))
2297                 return -EFAULT;
2298         return 0;
2299 }
2300
2301 static int force_delete_disk(struct aac_dev *dev, void __user *arg)
2302 {
2303         struct aac_delete_disk dd;
2304         struct fsa_dev_info *fsa_dev_ptr;
2305
2306         fsa_dev_ptr = dev->fsa_dev;
2307         if (!fsa_dev_ptr)
2308                 return -EBUSY;
2309
2310         if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
2311                 return -EFAULT;
2312
2313         if (dd.cnum >= dev->maximum_num_containers)
2314                 return -EINVAL;
2315         /*
2316          *      Mark this container as being deleted.
2317          */
2318         fsa_dev_ptr[dd.cnum].deleted = 1;
2319         /*
2320          *      Mark the container as no longer valid
2321          */
2322         fsa_dev_ptr[dd.cnum].valid = 0;
2323         return 0;
2324 }
2325
2326 static int delete_disk(struct aac_dev *dev, void __user *arg)
2327 {
2328         struct aac_delete_disk dd;
2329         struct fsa_dev_info *fsa_dev_ptr;
2330
2331         fsa_dev_ptr = dev->fsa_dev;
2332         if (!fsa_dev_ptr)
2333                 return -EBUSY;
2334
2335         if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
2336                 return -EFAULT;
2337
2338         if (dd.cnum >= dev->maximum_num_containers)
2339                 return -EINVAL;
2340         /*
2341          *      If the container is locked, it can not be deleted by the API.
2342          */
2343         if (fsa_dev_ptr[dd.cnum].locked)
2344                 return -EBUSY;
2345         else {
2346                 /*
2347                  *      Mark the container as no longer being valid.
2348                  */
2349                 fsa_dev_ptr[dd.cnum].valid = 0;
2350                 fsa_dev_ptr[dd.cnum].devname[0] = '\0';
2351                 return 0;
2352         }
2353 }
2354
2355 int aac_dev_ioctl(struct aac_dev *dev, int cmd, void __user *arg)
2356 {
2357         switch (cmd) {
2358         case FSACTL_QUERY_DISK:
2359                 return query_disk(dev, arg);
2360         case FSACTL_DELETE_DISK:
2361                 return delete_disk(dev, arg);
2362         case FSACTL_FORCE_DELETE_DISK:
2363                 return force_delete_disk(dev, arg);
2364         case FSACTL_GET_CONTAINERS:
2365                 return aac_get_containers(dev);
2366         default:
2367                 return -ENOTTY;
2368         }
2369 }
2370
2371 /**
2372  *
2373  * aac_srb_callback
2374  * @context: the context set in the fib - here it is scsi cmd
2375  * @fibptr: pointer to the fib
2376  *
2377  * Handles the completion of a scsi command to a non dasd device
2378  *
2379  */
2380
2381 static void aac_srb_callback(void *context, struct fib * fibptr)
2382 {
2383         struct aac_dev *dev;
2384         struct aac_srb_reply *srbreply;
2385         struct scsi_cmnd *scsicmd;
2386
2387         scsicmd = (struct scsi_cmnd *) context;
2388
2389         if (!aac_valid_context(scsicmd, fibptr))
2390                 return;
2391
2392         BUG_ON(fibptr == NULL);
2393
2394         dev = fibptr->dev;
2395
2396         srbreply = (struct aac_srb_reply *) fib_data(fibptr);
2397
2398         scsicmd->sense_buffer[0] = '\0';  /* Initialize sense valid flag to false */
2399         /*
2400          *      Calculate resid for sg
2401          */
2402
2403         scsi_set_resid(scsicmd, scsi_bufflen(scsicmd)
2404                        - le32_to_cpu(srbreply->data_xfer_length));
2405
2406         scsi_dma_unmap(scsicmd);
2407
2408         /*
2409          * First check the fib status
2410          */
2411
2412         if (le32_to_cpu(srbreply->status) != ST_OK){
2413                 int len;
2414                 printk(KERN_WARNING "aac_srb_callback: srb failed, status = %d\n", le32_to_cpu(srbreply->status));
2415                 len = min_t(u32, le32_to_cpu(srbreply->sense_data_size),
2416                             SCSI_SENSE_BUFFERSIZE);
2417                 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
2418                 memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
2419         }
2420
2421         /*
2422          * Next check the srb status
2423          */
2424         switch( (le32_to_cpu(srbreply->srb_status))&0x3f){
2425         case SRB_STATUS_ERROR_RECOVERY:
2426         case SRB_STATUS_PENDING:
2427         case SRB_STATUS_SUCCESS:
2428                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
2429                 break;
2430         case SRB_STATUS_DATA_OVERRUN:
2431                 switch(scsicmd->cmnd[0]){
2432                 case  READ_6:
2433                 case  WRITE_6:
2434                 case  READ_10:
2435                 case  WRITE_10:
2436                 case  READ_12:
2437                 case  WRITE_12:
2438                 case  READ_16:
2439                 case  WRITE_16:
2440                         if (le32_to_cpu(srbreply->data_xfer_length) < scsicmd->underflow) {
2441                                 printk(KERN_WARNING"aacraid: SCSI CMD underflow\n");
2442                         } else {
2443                                 printk(KERN_WARNING"aacraid: SCSI CMD Data Overrun\n");
2444                         }
2445                         scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
2446                         break;
2447                 case INQUIRY: {
2448                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
2449                         break;
2450                 }
2451                 default:
2452                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
2453                         break;
2454                 }
2455                 break;
2456         case SRB_STATUS_ABORTED:
2457                 scsicmd->result = DID_ABORT << 16 | ABORT << 8;
2458                 break;
2459         case SRB_STATUS_ABORT_FAILED:
2460                 // Not sure about this one - but assuming the hba was trying to abort for some reason
2461                 scsicmd->result = DID_ERROR << 16 | ABORT << 8;
2462                 break;
2463         case SRB_STATUS_PARITY_ERROR:
2464                 scsicmd->result = DID_PARITY << 16 | MSG_PARITY_ERROR << 8;
2465                 break;
2466         case SRB_STATUS_NO_DEVICE:
2467         case SRB_STATUS_INVALID_PATH_ID:
2468         case SRB_STATUS_INVALID_TARGET_ID:
2469         case SRB_STATUS_INVALID_LUN:
2470         case SRB_STATUS_SELECTION_TIMEOUT:
2471                 scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8;
2472                 break;
2473
2474         case SRB_STATUS_COMMAND_TIMEOUT:
2475         case SRB_STATUS_TIMEOUT:
2476                 scsicmd->result = DID_TIME_OUT << 16 | COMMAND_COMPLETE << 8;
2477                 break;
2478
2479         case SRB_STATUS_BUSY:
2480                 scsicmd->result = DID_BUS_BUSY << 16 | COMMAND_COMPLETE << 8;
2481                 break;
2482
2483         case SRB_STATUS_BUS_RESET:
2484                 scsicmd->result = DID_RESET << 16 | COMMAND_COMPLETE << 8;
2485                 break;
2486
2487         case SRB_STATUS_MESSAGE_REJECTED:
2488                 scsicmd->result = DID_ERROR << 16 | MESSAGE_REJECT << 8;
2489                 break;
2490         case SRB_STATUS_REQUEST_FLUSHED:
2491         case SRB_STATUS_ERROR:
2492         case SRB_STATUS_INVALID_REQUEST:
2493         case SRB_STATUS_REQUEST_SENSE_FAILED:
2494         case SRB_STATUS_NO_HBA:
2495         case SRB_STATUS_UNEXPECTED_BUS_FREE:
2496         case SRB_STATUS_PHASE_SEQUENCE_FAILURE:
2497         case SRB_STATUS_BAD_SRB_BLOCK_LENGTH:
2498         case SRB_STATUS_DELAYED_RETRY:
2499         case SRB_STATUS_BAD_FUNCTION:
2500         case SRB_STATUS_NOT_STARTED:
2501         case SRB_STATUS_NOT_IN_USE:
2502         case SRB_STATUS_FORCE_ABORT:
2503         case SRB_STATUS_DOMAIN_VALIDATION_FAIL:
2504         default:
2505 #ifdef AAC_DETAILED_STATUS_INFO
2506                 printk("aacraid: SRB ERROR(%u) %s scsi cmd 0x%x - scsi status 0x%x\n",
2507                         le32_to_cpu(srbreply->srb_status) & 0x3F,
2508                         aac_get_status_string(
2509                                 le32_to_cpu(srbreply->srb_status) & 0x3F),
2510                         scsicmd->cmnd[0],
2511                         le32_to_cpu(srbreply->scsi_status));
2512 #endif
2513                 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
2514                 break;
2515         }
2516         if (le32_to_cpu(srbreply->scsi_status) == SAM_STAT_CHECK_CONDITION) {
2517                 int len;
2518                 scsicmd->result |= SAM_STAT_CHECK_CONDITION;
2519                 len = min_t(u32, le32_to_cpu(srbreply->sense_data_size),
2520                             SCSI_SENSE_BUFFERSIZE);
2521 #ifdef AAC_DETAILED_STATUS_INFO
2522                 printk(KERN_WARNING "aac_srb_callback: check condition, status = %d len=%d\n",
2523                                         le32_to_cpu(srbreply->status), len);
2524 #endif
2525                 memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
2526         }
2527         /*
2528          * OR in the scsi status (already shifted up a bit)
2529          */
2530         scsicmd->result |= le32_to_cpu(srbreply->scsi_status);
2531
2532         aac_fib_complete(fibptr);
2533         aac_fib_free(fibptr);
2534         scsicmd->scsi_done(scsicmd);
2535 }
2536
2537 /**
2538  *
2539  * aac_send_scb_fib
2540  * @scsicmd: the scsi command block
2541  *
2542  * This routine will form a FIB and fill in the aac_srb from the
2543  * scsicmd passed in.
2544  */
2545
2546 static int aac_send_srb_fib(struct scsi_cmnd* scsicmd)
2547 {
2548         struct fib* cmd_fibcontext;
2549         struct aac_dev* dev;
2550         int status;
2551
2552         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2553         if (scmd_id(scsicmd) >= dev->maximum_num_physicals ||
2554                         scsicmd->device->lun > 7) {
2555                 scsicmd->result = DID_NO_CONNECT << 16;
2556                 scsicmd->scsi_done(scsicmd);
2557                 return 0;
2558         }
2559
2560         /*
2561          *      Allocate and initialize a Fib then setup a BlockWrite command
2562          */
2563         if (!(cmd_fibcontext = aac_fib_alloc(dev))) {
2564                 return -1;
2565         }
2566         status = aac_adapter_scsi(cmd_fibcontext, scsicmd);
2567
2568         /*
2569          *      Check that the command queued to the controller
2570          */
2571         if (status == -EINPROGRESS) {
2572                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
2573                 return 0;
2574         }
2575
2576         printk(KERN_WARNING "aac_srb: aac_fib_send failed with status: %d\n", status);
2577         aac_fib_complete(cmd_fibcontext);
2578         aac_fib_free(cmd_fibcontext);
2579
2580         return -1;
2581 }
2582
2583 static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* psg)
2584 {
2585         struct aac_dev *dev;
2586         unsigned long byte_count = 0;
2587         int nseg;
2588
2589         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2590         // Get rid of old data
2591         psg->count = 0;
2592         psg->sg[0].addr = 0;
2593         psg->sg[0].count = 0;
2594
2595         nseg = scsi_dma_map(scsicmd);
2596         BUG_ON(nseg < 0);
2597         if (nseg) {
2598                 struct scatterlist *sg;
2599                 int i;
2600
2601                 psg->count = cpu_to_le32(nseg);
2602
2603                 scsi_for_each_sg(scsicmd, sg, nseg, i) {
2604                         psg->sg[i].addr = cpu_to_le32(sg_dma_address(sg));
2605                         psg->sg[i].count = cpu_to_le32(sg_dma_len(sg));
2606                         byte_count += sg_dma_len(sg);
2607                 }
2608                 /* hba wants the size to be exact */
2609                 if (byte_count > scsi_bufflen(scsicmd)) {
2610                         u32 temp = le32_to_cpu(psg->sg[i-1].count) -
2611                                 (byte_count - scsi_bufflen(scsicmd));
2612                         psg->sg[i-1].count = cpu_to_le32(temp);
2613                         byte_count = scsi_bufflen(scsicmd);
2614                 }
2615                 /* Check for command underflow */
2616                 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2617                         printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2618                                         byte_count, scsicmd->underflow);
2619                 }
2620         }
2621         return byte_count;
2622 }
2623
2624
2625 static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* psg)
2626 {
2627         struct aac_dev *dev;
2628         unsigned long byte_count = 0;
2629         u64 addr;
2630         int nseg;
2631
2632         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2633         // Get rid of old data
2634         psg->count = 0;
2635         psg->sg[0].addr[0] = 0;
2636         psg->sg[0].addr[1] = 0;
2637         psg->sg[0].count = 0;
2638
2639         nseg = scsi_dma_map(scsicmd);
2640         BUG_ON(nseg < 0);
2641         if (nseg) {
2642                 struct scatterlist *sg;
2643                 int i;
2644
2645                 scsi_for_each_sg(scsicmd, sg, nseg, i) {
2646                         int count = sg_dma_len(sg);
2647                         addr = sg_dma_address(sg);
2648                         psg->sg[i].addr[0] = cpu_to_le32(addr & 0xffffffff);
2649                         psg->sg[i].addr[1] = cpu_to_le32(addr>>32);
2650                         psg->sg[i].count = cpu_to_le32(count);
2651                         byte_count += count;
2652                 }
2653                 psg->count = cpu_to_le32(nseg);
2654                 /* hba wants the size to be exact */
2655                 if (byte_count > scsi_bufflen(scsicmd)) {
2656                         u32 temp = le32_to_cpu(psg->sg[i-1].count) -
2657                                 (byte_count - scsi_bufflen(scsicmd));
2658                         psg->sg[i-1].count = cpu_to_le32(temp);
2659                         byte_count = scsi_bufflen(scsicmd);
2660                 }
2661                 /* Check for command underflow */
2662                 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2663                         printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2664                                         byte_count, scsicmd->underflow);
2665                 }
2666         }
2667         return byte_count;
2668 }
2669
2670 static unsigned long aac_build_sgraw(struct scsi_cmnd* scsicmd, struct sgmapraw* psg)
2671 {
2672         unsigned long byte_count = 0;
2673         int nseg;
2674
2675         // Get rid of old data
2676         psg->count = 0;
2677         psg->sg[0].next = 0;
2678         psg->sg[0].prev = 0;
2679         psg->sg[0].addr[0] = 0;
2680         psg->sg[0].addr[1] = 0;
2681         psg->sg[0].count = 0;
2682         psg->sg[0].flags = 0;
2683
2684         nseg = scsi_dma_map(scsicmd);
2685         BUG_ON(nseg < 0);
2686         if (nseg) {
2687                 struct scatterlist *sg;
2688                 int i;
2689
2690                 scsi_for_each_sg(scsicmd, sg, nseg, i) {
2691                         int count = sg_dma_len(sg);
2692                         u64 addr = sg_dma_address(sg);
2693                         psg->sg[i].next = 0;
2694                         psg->sg[i].prev = 0;
2695                         psg->sg[i].addr[1] = cpu_to_le32((u32)(addr>>32));
2696                         psg->sg[i].addr[0] = cpu_to_le32((u32)(addr & 0xffffffff));
2697                         psg->sg[i].count = cpu_to_le32(count);
2698                         psg->sg[i].flags = 0;
2699                         byte_count += count;
2700                 }
2701                 psg->count = cpu_to_le32(nseg);
2702                 /* hba wants the size to be exact */
2703                 if (byte_count > scsi_bufflen(scsicmd)) {
2704                         u32 temp = le32_to_cpu(psg->sg[i-1].count) -
2705                                 (byte_count - scsi_bufflen(scsicmd));
2706                         psg->sg[i-1].count = cpu_to_le32(temp);
2707                         byte_count = scsi_bufflen(scsicmd);
2708                 }
2709                 /* Check for command underflow */
2710                 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2711                         printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2712                                         byte_count, scsicmd->underflow);
2713                 }
2714         }
2715         return byte_count;
2716 }
2717
2718 #ifdef AAC_DETAILED_STATUS_INFO
2719
2720 struct aac_srb_status_info {
2721         u32     status;
2722         char    *str;
2723 };
2724
2725
2726 static struct aac_srb_status_info srb_status_info[] = {
2727         { SRB_STATUS_PENDING,           "Pending Status"},
2728         { SRB_STATUS_SUCCESS,           "Success"},
2729         { SRB_STATUS_ABORTED,           "Aborted Command"},
2730         { SRB_STATUS_ABORT_FAILED,      "Abort Failed"},
2731         { SRB_STATUS_ERROR,             "Error Event"},
2732         { SRB_STATUS_BUSY,              "Device Busy"},
2733         { SRB_STATUS_INVALID_REQUEST,   "Invalid Request"},
2734         { SRB_STATUS_INVALID_PATH_ID,   "Invalid Path ID"},
2735         { SRB_STATUS_NO_DEVICE,         "No Device"},
2736         { SRB_STATUS_TIMEOUT,           "Timeout"},
2737         { SRB_STATUS_SELECTION_TIMEOUT, "Selection Timeout"},
2738         { SRB_STATUS_COMMAND_TIMEOUT,   "Command Timeout"},
2739         { SRB_STATUS_MESSAGE_REJECTED,  "Message Rejected"},
2740         { SRB_STATUS_BUS_RESET,         "Bus Reset"},
2741         { SRB_STATUS_PARITY_ERROR,      "Parity Error"},
2742         { SRB_STATUS_REQUEST_SENSE_FAILED,"Request Sense Failed"},
2743         { SRB_STATUS_NO_HBA,            "No HBA"},
2744         { SRB_STATUS_DATA_OVERRUN,      "Data Overrun/Data Underrun"},
2745         { SRB_STATUS_UNEXPECTED_BUS_FREE,"Unexpected Bus Free"},
2746         { SRB_STATUS_PHASE_SEQUENCE_FAILURE,"Phase Error"},
2747         { SRB_STATUS_BAD_SRB_BLOCK_LENGTH,"Bad Srb Block Length"},
2748         { SRB_STATUS_REQUEST_FLUSHED,   "Request Flushed"},
2749         { SRB_STATUS_DELAYED_RETRY,     "Delayed Retry"},
2750         { SRB_STATUS_INVALID_LUN,       "Invalid LUN"},
2751         { SRB_STATUS_INVALID_TARGET_ID, "Invalid TARGET ID"},
2752         { SRB_STATUS_BAD_FUNCTION,      "Bad Function"},
2753         { SRB_STATUS_ERROR_RECOVERY,    "Error Recovery"},
2754         { SRB_STATUS_NOT_STARTED,       "Not Started"},
2755         { SRB_STATUS_NOT_IN_USE,        "Not In Use"},
2756         { SRB_STATUS_FORCE_ABORT,       "Force Abort"},
2757         { SRB_STATUS_DOMAIN_VALIDATION_FAIL,"Domain Validation Failure"},
2758         { 0xff,                         "Unknown Error"}
2759 };
2760
2761 char *aac_get_status_string(u32 status)
2762 {
2763         int i;
2764
2765         for (i = 0; i < ARRAY_SIZE(srb_status_info); i++)
2766                 if (srb_status_info[i].status == status)
2767                         return srb_status_info[i].str;
2768
2769         return "Bad Status Code";
2770 }
2771
2772 #endif