err.no Git - linux-2.6/blob - drivers/scsi/aacraid/aachba.c

   1 /*
   2  *      Adaptec AAC series RAID controller driver
   3  *      (c) Copyright 2001 Red Hat Inc. <alan@redhat.com>
   4  *
   5  * based on the old aacraid driver that is..
   6  * Adaptec aacraid device driver for Linux.
   7  *
   8  * Copyright (c) 2000-2007 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 <linux/dma-mapping.h>
  35 #include <asm/semaphore.h>
  36 #include <asm/uaccess.h>
  37
  38 #include <scsi/scsi.h>
  39 #include <scsi/scsi_cmnd.h>
  40 #include <scsi/scsi_device.h>
  41 #include <scsi/scsi_host.h>
  42
  43 #include "aacraid.h"
  44
  45 /* values for inqd_pdt: Peripheral device type in plain English */
  46 #define INQD_PDT_DA     0x00    /* Direct-access (DISK) device */
  47 #define INQD_PDT_PROC   0x03    /* Processor device */
  48 #define INQD_PDT_CHNGR  0x08    /* Changer (jukebox, scsi2) */
  49 #define INQD_PDT_COMM   0x09    /* Communication device (scsi2) */
  50 #define INQD_PDT_NOLUN2 0x1f    /* Unknown Device (scsi2) */
  51 #define INQD_PDT_NOLUN  0x7f    /* Logical Unit Not Present */
  52
  53 #define INQD_PDT_DMASK  0x1F    /* Peripheral Device Type Mask */
  54 #define INQD_PDT_QMASK  0xE0    /* Peripheral Device Qualifer Mask */
  55
  56 /*
  57  *      Sense codes
  58  */
  59
  60 #define SENCODE_NO_SENSE                        0x00
  61 #define SENCODE_END_OF_DATA                     0x00
  62 #define SENCODE_BECOMING_READY                  0x04
  63 #define SENCODE_INIT_CMD_REQUIRED               0x04
  64 #define SENCODE_PARAM_LIST_LENGTH_ERROR         0x1A
  65 #define SENCODE_INVALID_COMMAND                 0x20
  66 #define SENCODE_LBA_OUT_OF_RANGE                0x21
  67 #define SENCODE_INVALID_CDB_FIELD               0x24
  68 #define SENCODE_LUN_NOT_SUPPORTED               0x25
  69 #define SENCODE_INVALID_PARAM_FIELD             0x26
  70 #define SENCODE_PARAM_NOT_SUPPORTED             0x26
  71 #define SENCODE_PARAM_VALUE_INVALID             0x26
  72 #define SENCODE_RESET_OCCURRED                  0x29
  73 #define SENCODE_LUN_NOT_SELF_CONFIGURED_YET     0x3E
  74 #define SENCODE_INQUIRY_DATA_CHANGED            0x3F
  75 #define SENCODE_SAVING_PARAMS_NOT_SUPPORTED     0x39
  76 #define SENCODE_DIAGNOSTIC_FAILURE              0x40
  77 #define SENCODE_INTERNAL_TARGET_FAILURE         0x44
  78 #define SENCODE_INVALID_MESSAGE_ERROR           0x49
  79 #define SENCODE_LUN_FAILED_SELF_CONFIG          0x4c
  80 #define SENCODE_OVERLAPPED_COMMAND              0x4E
  81
  82 /*
  83  *      Additional sense codes
  84  */
  85
  86 #define ASENCODE_NO_SENSE                       0x00
  87 #define ASENCODE_END_OF_DATA                    0x05
  88 #define ASENCODE_BECOMING_READY                 0x01
  89 #define ASENCODE_INIT_CMD_REQUIRED              0x02
  90 #define ASENCODE_PARAM_LIST_LENGTH_ERROR        0x00
  91 #define ASENCODE_INVALID_COMMAND                0x00
  92 #define ASENCODE_LBA_OUT_OF_RANGE               0x00
  93 #define ASENCODE_INVALID_CDB_FIELD              0x00
  94 #define ASENCODE_LUN_NOT_SUPPORTED              0x00
  95 #define ASENCODE_INVALID_PARAM_FIELD            0x00
  96 #define ASENCODE_PARAM_NOT_SUPPORTED            0x01
  97 #define ASENCODE_PARAM_VALUE_INVALID            0x02
  98 #define ASENCODE_RESET_OCCURRED                 0x00
  99 #define ASENCODE_LUN_NOT_SELF_CONFIGURED_YET    0x00
 100 #define ASENCODE_INQUIRY_DATA_CHANGED           0x03
 101 #define ASENCODE_SAVING_PARAMS_NOT_SUPPORTED    0x00
 102 #define ASENCODE_DIAGNOSTIC_FAILURE             0x80
 103 #define ASENCODE_INTERNAL_TARGET_FAILURE        0x00
 104 #define ASENCODE_INVALID_MESSAGE_ERROR          0x00
 105 #define ASENCODE_LUN_FAILED_SELF_CONFIG         0x00
 106 #define ASENCODE_OVERLAPPED_COMMAND             0x00
 107
 108 #define BYTE0(x) (unsigned char)(x)
 109 #define BYTE1(x) (unsigned char)((x) >> 8)
 110 #define BYTE2(x) (unsigned char)((x) >> 16)
 111 #define BYTE3(x) (unsigned char)((x) >> 24)
 112
 113 /*------------------------------------------------------------------------------
 114  *              S T R U C T S / T Y P E D E F S
 115  *----------------------------------------------------------------------------*/
 116 /* SCSI inquiry data */
 117 struct inquiry_data {
 118         u8 inqd_pdt;    /* Peripheral qualifier | Peripheral Device Type  */
 119         u8 inqd_dtq;    /* RMB | Device Type Qualifier  */
 120         u8 inqd_ver;    /* ISO version | ECMA version | ANSI-approved version */
 121         u8 inqd_rdf;    /* AENC | TrmIOP | Response data format */
 122         u8 inqd_len;    /* Additional length (n-4) */
 123         u8 inqd_pad1[2];/* Reserved - must be zero */
 124         u8 inqd_pad2;   /* RelAdr | WBus32 | WBus16 |  Sync  | Linked |Reserved| CmdQue | SftRe */
 125         u8 inqd_vid[8]; /* Vendor ID */
 126         u8 inqd_pid[16];/* Product ID */
 127         u8 inqd_prl[4]; /* Product Revision Level */
 128 };
 129
 130 /*
 131  *              M O D U L E   G L O B A L S
 132  */
 133
 134 static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* sgmap);
 135 static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* psg);
 136 static unsigned long aac_build_sgraw(struct scsi_cmnd* scsicmd, struct sgmapraw* psg);
 137 static int aac_send_srb_fib(struct scsi_cmnd* scsicmd);
 138 #ifdef AAC_DETAILED_STATUS_INFO
 139 static char *aac_get_status_string(u32 status);
 140 #endif
 141
 142 /*
 143  *      Non dasd selection is handled entirely in aachba now
 144  */
 145
 146 static int nondasd = -1;
 147 static int aac_cache = 0;
 148 static int dacmode = -1;
 149
 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. 0=off, 1=on");
 156 module_param_named(cache, aac_cache, int, S_IRUGO|S_IWUSR);
 157 MODULE_PARM_DESC(cache, "Disable Queue Flush commands:\n\tbit 0 - Disable FUA in WRITE SCSI commands\n\tbit 1 - Disable SYNCHRONIZE_CACHE SCSI command\n\tbit 2 - Disable only if Battery not protecting Cache");
 158 module_param(dacmode, int, S_IRUGO|S_IWUSR);
 159 MODULE_PARM_DESC(dacmode, "Control whether dma addressing is using 64 bit DAC. 0=off, 1=on");
 160 module_param_named(commit, aac_commit, int, S_IRUGO|S_IWUSR);
 161 MODULE_PARM_DESC(commit, "Control whether a COMMIT_CONFIG is issued to the adapter for foreign arrays.\nThis is typically needed in systems that do not have a BIOS. 0=off, 1=on");
 162 module_param(startup_timeout, int, S_IRUGO|S_IWUSR);
 163 MODULE_PARM_DESC(startup_timeout, "The duration of time in seconds to wait for adapter to have it's kernel up and\nrunning. This is typically adjusted for large systems that do not have a BIOS.");
 164 module_param(aif_timeout, int, S_IRUGO|S_IWUSR);
 165 MODULE_PARM_DESC(aif_timeout, "The duration of time in seconds to wait for applications to pick up AIFs before\nderegistering them. This is typically adjusted for heavily burdened systems.");
 166
 167 int numacb = -1;
 168 module_param(numacb, int, S_IRUGO|S_IWUSR);
 169 MODULE_PARM_DESC(numacb, "Request a limit to the number of adapter control blocks (FIB) allocated. Valid values are 512 and down. Default is to use suggestion from Firmware.");
 170
 171 int acbsize = -1;
 172 module_param(acbsize, int, S_IRUGO|S_IWUSR);
 173 MODULE_PARM_DESC(acbsize, "Request a specific adapter control block (FIB) size. Valid values are 512, 2048, 4096 and 8192. Default is to use suggestion from Firmware.");
 174
 175 int update_interval = 30 * 60;
 176 module_param(update_interval, int, S_IRUGO|S_IWUSR);
 177 MODULE_PARM_DESC(update_interval, "Interval in seconds between time sync updates issued to adapter.");
 178
 179 int check_interval = 24 * 60 * 60;
 180 module_param(check_interval, int, S_IRUGO|S_IWUSR);
 181 MODULE_PARM_DESC(check_interval, "Interval in seconds between adapter health checks.");
 182
 183 int aac_check_reset = 1;
 184 module_param_named(check_reset, aac_check_reset, int, S_IRUGO|S_IWUSR);
 185 MODULE_PARM_DESC(aac_check_reset, "If adapter fails health check, reset the adapter. a value of -1 forces the reset to adapters programmed to ignore it.");
 186
 187 int expose_physicals = -1;
 188 module_param(expose_physicals, int, S_IRUGO|S_IWUSR);
 189 MODULE_PARM_DESC(expose_physicals, "Expose physical components of the arrays. -1=protect 0=off, 1=on");
 190
 191 int aac_reset_devices = 0;
 192 module_param_named(reset_devices, aac_reset_devices, int, S_IRUGO|S_IWUSR);
 193 MODULE_PARM_DESC(reset_devices, "Force an adapter reset at initialization.");
 194
 195 static inline int aac_valid_context(struct scsi_cmnd *scsicmd,
 196                 struct fib *fibptr) {
 197         struct scsi_device *device;
 198
 199         if (unlikely(!scsicmd || !scsicmd->scsi_done )) {
 200                 dprintk((KERN_WARNING "aac_valid_context: scsi command corrupt\n"));
 201                 aac_fib_complete(fibptr);
 202                 aac_fib_free(fibptr);
 203                 return 0;
 204         }
 205         scsicmd->SCp.phase = AAC_OWNER_MIDLEVEL;
 206         device = scsicmd->device;
 207         if (unlikely(!device || !scsi_device_online(device))) {
 208                 dprintk((KERN_WARNING "aac_valid_context: scsi device corrupt\n"));
 209                 aac_fib_complete(fibptr);
 210                 aac_fib_free(fibptr);
 211                 return 0;
 212         }
 213         return 1;
 214 }
 215
 216 /**
 217  *      aac_get_config_status   -       check the adapter configuration
 218  *      @common: adapter to query
 219  *
 220  *      Query config status, and commit the configuration if needed.
 221  */
 222 int aac_get_config_status(struct aac_dev *dev, int commit_flag)
 223 {
 224         int status = 0;
 225         struct fib * fibptr;
 226
 227         if (!(fibptr = aac_fib_alloc(dev)))
 228                 return -ENOMEM;
 229
 230         aac_fib_init(fibptr);
 231         {
 232                 struct aac_get_config_status *dinfo;
 233                 dinfo = (struct aac_get_config_status *) fib_data(fibptr);
 234
 235                 dinfo->command = cpu_to_le32(VM_ContainerConfig);
 236                 dinfo->type = cpu_to_le32(CT_GET_CONFIG_STATUS);
 237                 dinfo->count = cpu_to_le32(sizeof(((struct aac_get_config_status_resp *)NULL)->data));
 238         }
 239
 240         status = aac_fib_send(ContainerCommand,
 241                             fibptr,
 242                             sizeof (struct aac_get_config_status),
 243                             FsaNormal,
 244                             1, 1,
 245                             NULL, NULL);
 246         if (status < 0 ) {
 247                 printk(KERN_WARNING "aac_get_config_status: SendFIB failed.\n");
 248         } else {
 249                 struct aac_get_config_status_resp *reply
 250                   = (struct aac_get_config_status_resp *) fib_data(fibptr);
 251                 dprintk((KERN_WARNING
 252                   "aac_get_config_status: response=%d status=%d action=%d\n",
 253                   le32_to_cpu(reply->response),
 254                   le32_to_cpu(reply->status),
 255                   le32_to_cpu(reply->data.action)));
 256                 if ((le32_to_cpu(reply->response) != ST_OK) ||
 257                      (le32_to_cpu(reply->status) != CT_OK) ||
 258                      (le32_to_cpu(reply->data.action) > CFACT_PAUSE)) {
 259                         printk(KERN_WARNING "aac_get_config_status: Will not issue the Commit Configuration\n");
 260                         status = -EINVAL;
 261                 }
 262         }
 263         aac_fib_complete(fibptr);
 264         /* Send a CT_COMMIT_CONFIG to enable discovery of devices */
 265         if (status >= 0) {
 266                 if ((aac_commit == 1) || commit_flag) {
 267                         struct aac_commit_config * dinfo;
 268                         aac_fib_init(fibptr);
 269                         dinfo = (struct aac_commit_config *) fib_data(fibptr);
 270
 271                         dinfo->command = cpu_to_le32(VM_ContainerConfig);
 272                         dinfo->type = cpu_to_le32(CT_COMMIT_CONFIG);
 273
 274                         status = aac_fib_send(ContainerCommand,
 275                                     fibptr,
 276                                     sizeof (struct aac_commit_config),
 277                                     FsaNormal,
 278                                     1, 1,
 279                                     NULL, NULL);
 280                         aac_fib_complete(fibptr);
 281                 } else if (aac_commit == 0) {
 282                         printk(KERN_WARNING
 283                           "aac_get_config_status: Foreign device configurations are being ignored\n");
 284                 }
 285         }
 286         aac_fib_free(fibptr);
 287         return status;
 288 }
 289
 290 /**
 291  *      aac_get_containers      -       list containers
 292  *      @common: adapter to probe
 293  *
 294  *      Make a list of all containers on this controller
 295  */
 296 int aac_get_containers(struct aac_dev *dev)
 297 {
 298         struct fsa_dev_info *fsa_dev_ptr;
 299         u32 index;
 300         int status = 0;
 301         struct fib * fibptr;
 302         struct aac_get_container_count *dinfo;
 303         struct aac_get_container_count_resp *dresp;
 304         int maximum_num_containers = MAXIMUM_NUM_CONTAINERS;
 305
 306         if (!(fibptr = aac_fib_alloc(dev)))
 307                 return -ENOMEM;
 308
 309         aac_fib_init(fibptr);
 310         dinfo = (struct aac_get_container_count *) fib_data(fibptr);
 311         dinfo->command = cpu_to_le32(VM_ContainerConfig);
 312         dinfo->type = cpu_to_le32(CT_GET_CONTAINER_COUNT);
 313
 314         status = aac_fib_send(ContainerCommand,
 315                     fibptr,
 316                     sizeof (struct aac_get_container_count),
 317                     FsaNormal,
 318                     1, 1,
 319                     NULL, NULL);
 320         if (status >= 0) {
 321                 dresp = (struct aac_get_container_count_resp *)fib_data(fibptr);
 322                 maximum_num_containers = le32_to_cpu(dresp->ContainerSwitchEntries);
 323                 aac_fib_complete(fibptr);
 324         }
 325         aac_fib_free(fibptr);
 326
 327         if (maximum_num_containers < MAXIMUM_NUM_CONTAINERS)
 328                 maximum_num_containers = MAXIMUM_NUM_CONTAINERS;
 329         fsa_dev_ptr = kzalloc(sizeof(*fsa_dev_ptr) * maximum_num_containers,
 330                         GFP_KERNEL);
 331         if (!fsa_dev_ptr)
 332                 return -ENOMEM;
 333
 334         dev->fsa_dev = fsa_dev_ptr;
 335         dev->maximum_num_containers = maximum_num_containers;
 336
 337         for (index = 0; index < dev->maximum_num_containers; ) {
 338                 fsa_dev_ptr[index].devname[0] = '\0';
 339
 340                 status = aac_probe_container(dev, index);
 341
 342                 if (status < 0) {
 343                         printk(KERN_WARNING "aac_get_containers: SendFIB failed.\n");
 344                         break;
 345                 }
 346
 347                 /*
 348                  *      If there are no more containers, then stop asking.
 349                  */
 350                 if (++index >= status)
 351                         break;
 352         }
 353         return status;
 354 }
 355
 356 static void aac_internal_transfer(struct scsi_cmnd *scsicmd, void *data, unsigned int offset, unsigned int len)
 357 {
 358         void *buf;
 359         int transfer_len;
 360         struct scatterlist *sg = scsi_sglist(scsicmd);
 361
 362         buf = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset;
 363         transfer_len = min(sg->length, len + offset);
 364
 365         transfer_len -= offset;
 366         if (buf && transfer_len > 0)
 367                 memcpy(buf + offset, data, transfer_len);
 368
 369         kunmap_atomic(buf - sg->offset, KM_IRQ0);
 370
 371 }
 372
 373 static void get_container_name_callback(void *context, struct fib * fibptr)
 374 {
 375         struct aac_get_name_resp * get_name_reply;
 376         struct scsi_cmnd * scsicmd;
 377
 378         scsicmd = (struct scsi_cmnd *) context;
 379
 380         if (!aac_valid_context(scsicmd, fibptr))
 381                 return;
 382
 383         dprintk((KERN_DEBUG "get_container_name_callback[cpu %d]: t = %ld.\n", smp_processor_id(), jiffies));
 384         BUG_ON(fibptr == NULL);
 385
 386         get_name_reply = (struct aac_get_name_resp *) fib_data(fibptr);
 387         /* Failure is irrelevant, using default value instead */
 388         if ((le32_to_cpu(get_name_reply->status) == CT_OK)
 389          && (get_name_reply->data[0] != '\0')) {
 390                 char *sp = get_name_reply->data;
 391                 sp[sizeof(((struct aac_get_name_resp *)NULL)->data)-1] = '\0';
 392                 while (*sp == ' ')
 393                         ++sp;
 394                 if (*sp) {
 395                         char d[sizeof(((struct inquiry_data *)NULL)->inqd_pid)];
 396                         int count = sizeof(d);
 397                         char *dp = d;
 398                         do {
 399                                 *dp++ = (*sp) ? *sp++ : ' ';
 400                         } while (--count > 0);
 401                         aac_internal_transfer(scsicmd, d,
 402                           offsetof(struct inquiry_data, inqd_pid), sizeof(d));
 403                 }
 404         }
 405
 406         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
 407
 408         aac_fib_complete(fibptr);
 409         aac_fib_free(fibptr);
 410         scsicmd->scsi_done(scsicmd);
 411 }
 412
 413 /**
 414  *      aac_get_container_name  -       get container name, none blocking.
 415  */
 416 static int aac_get_container_name(struct scsi_cmnd * scsicmd)
 417 {
 418         int status;
 419         struct aac_get_name *dinfo;
 420         struct fib * cmd_fibcontext;
 421         struct aac_dev * dev;
 422
 423         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
 424
 425         if (!(cmd_fibcontext = aac_fib_alloc(dev)))
 426                 return -ENOMEM;
 427
 428         aac_fib_init(cmd_fibcontext);
 429         dinfo = (struct aac_get_name *) fib_data(cmd_fibcontext);
 430
 431         dinfo->command = cpu_to_le32(VM_ContainerConfig);
 432         dinfo->type = cpu_to_le32(CT_READ_NAME);
 433         dinfo->cid = cpu_to_le32(scmd_id(scsicmd));
 434         dinfo->count = cpu_to_le32(sizeof(((struct aac_get_name_resp *)NULL)->data));
 435
 436         status = aac_fib_send(ContainerCommand,
 437                   cmd_fibcontext,
 438                   sizeof (struct aac_get_name),
 439                   FsaNormal,
 440                   0, 1,
 441                   (fib_callback) get_container_name_callback,
 442                   (void *) scsicmd);
 443
 444         /*
 445          *      Check that the command queued to the controller
 446          */
 447         if (status == -EINPROGRESS) {
 448                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
 449                 return 0;
 450         }
 451
 452         printk(KERN_WARNING "aac_get_container_name: aac_fib_send failed with status: %d.\n", status);
 453         aac_fib_complete(cmd_fibcontext);
 454         aac_fib_free(cmd_fibcontext);
 455         return -1;
 456 }
 457
 458 static int aac_probe_container_callback2(struct scsi_cmnd * scsicmd)
 459 {
 460         struct fsa_dev_info *fsa_dev_ptr = ((struct aac_dev *)(scsicmd->device->host->hostdata))->fsa_dev;
 461
 462         if ((fsa_dev_ptr[scmd_id(scsicmd)].valid & 1))
 463                 return aac_scsi_cmd(scsicmd);
 464
 465         scsicmd->result = DID_NO_CONNECT << 16;
 466         scsicmd->scsi_done(scsicmd);
 467         return 0;
 468 }
 469
 470 static void _aac_probe_container2(void * context, struct fib * fibptr)
 471 {
 472         struct fsa_dev_info *fsa_dev_ptr;
 473         int (*callback)(struct scsi_cmnd *);
 474         struct scsi_cmnd * scsicmd = (struct scsi_cmnd *)context;
 475
 476
 477         if (!aac_valid_context(scsicmd, fibptr))
 478                 return;
 479
 480         scsicmd->SCp.Status = 0;
 481         fsa_dev_ptr = fibptr->dev->fsa_dev;
 482         if (fsa_dev_ptr) {
 483                 struct aac_mount * dresp = (struct aac_mount *) fib_data(fibptr);
 484                 fsa_dev_ptr += scmd_id(scsicmd);
 485
 486                 if ((le32_to_cpu(dresp->status) == ST_OK) &&
 487                     (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE) &&
 488                     (le32_to_cpu(dresp->mnt[0].state) != FSCS_HIDDEN)) {
 489                         fsa_dev_ptr->valid = 1;
 490                         fsa_dev_ptr->type = le32_to_cpu(dresp->mnt[0].vol);
 491                         fsa_dev_ptr->size
 492                           = ((u64)le32_to_cpu(dresp->mnt[0].capacity)) +
 493                             (((u64)le32_to_cpu(dresp->mnt[0].capacityhigh)) << 32);
 494                         fsa_dev_ptr->ro = ((le32_to_cpu(dresp->mnt[0].state) & FSCS_READONLY) != 0);
 495                 }
 496                 if ((fsa_dev_ptr->valid & 1) == 0)
 497                         fsa_dev_ptr->valid = 0;
 498                 scsicmd->SCp.Status = le32_to_cpu(dresp->count);
 499         }
 500         aac_fib_complete(fibptr);
 501         aac_fib_free(fibptr);
 502         callback = (int (*)(struct scsi_cmnd *))(scsicmd->SCp.ptr);
 503         scsicmd->SCp.ptr = NULL;
 504         (*callback)(scsicmd);
 505         return;
 506 }
 507
 508 static void _aac_probe_container1(void * context, struct fib * fibptr)
 509 {
 510         struct scsi_cmnd * scsicmd;
 511         struct aac_mount * dresp;
 512         struct aac_query_mount *dinfo;
 513         int status;
 514
 515         dresp = (struct aac_mount *) fib_data(fibptr);
 516         dresp->mnt[0].capacityhigh = 0;
 517         if ((le32_to_cpu(dresp->status) != ST_OK) ||
 518             (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE)) {
 519                 _aac_probe_container2(context, fibptr);
 520                 return;
 521         }
 522         scsicmd = (struct scsi_cmnd *) context;
 523
 524         if (!aac_valid_context(scsicmd, fibptr))
 525                 return;
 526
 527         aac_fib_init(fibptr);
 528
 529         dinfo = (struct aac_query_mount *)fib_data(fibptr);
 530
 531         dinfo->command = cpu_to_le32(VM_NameServe64);
 532         dinfo->count = cpu_to_le32(scmd_id(scsicmd));
 533         dinfo->type = cpu_to_le32(FT_FILESYS);
 534
 535         status = aac_fib_send(ContainerCommand,
 536                           fibptr,
 537                           sizeof(struct aac_query_mount),
 538                           FsaNormal,
 539                           0, 1,
 540                           _aac_probe_container2,
 541                           (void *) scsicmd);
 542         /*
 543          *      Check that the command queued to the controller
 544          */
 545         if (status == -EINPROGRESS)
 546                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
 547         else if (status < 0) {
 548                 /* Inherit results from VM_NameServe, if any */
 549                 dresp->status = cpu_to_le32(ST_OK);
 550                 _aac_probe_container2(context, fibptr);
 551         }
 552 }
 553
 554 static int _aac_probe_container(struct scsi_cmnd * scsicmd, int (*callback)(struct scsi_cmnd *))
 555 {
 556         struct fib * fibptr;
 557         int status = -ENOMEM;
 558
 559         if ((fibptr = aac_fib_alloc((struct aac_dev *)scsicmd->device->host->hostdata))) {
 560                 struct aac_query_mount *dinfo;
 561
 562                 aac_fib_init(fibptr);
 563
 564                 dinfo = (struct aac_query_mount *)fib_data(fibptr);
 565
 566                 dinfo->command = cpu_to_le32(VM_NameServe);
 567                 dinfo->count = cpu_to_le32(scmd_id(scsicmd));
 568                 dinfo->type = cpu_to_le32(FT_FILESYS);
 569                 scsicmd->SCp.ptr = (char *)callback;
 570
 571                 status = aac_fib_send(ContainerCommand,
 572                           fibptr,
 573                           sizeof(struct aac_query_mount),
 574                           FsaNormal,
 575                           0, 1,
 576                           _aac_probe_container1,
 577                           (void *) scsicmd);
 578                 /*
 579                  *      Check that the command queued to the controller
 580                  */
 581                 if (status == -EINPROGRESS) {
 582                         scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
 583                         return 0;
 584                 }
 585                 if (status < 0) {
 586                         scsicmd->SCp.ptr = NULL;
 587                         aac_fib_complete(fibptr);
 588                         aac_fib_free(fibptr);
 589                 }
 590         }
 591         if (status < 0) {
 592                 struct fsa_dev_info *fsa_dev_ptr = ((struct aac_dev *)(scsicmd->device->host->hostdata))->fsa_dev;
 593                 if (fsa_dev_ptr) {
 594                         fsa_dev_ptr += scmd_id(scsicmd);
 595                         if ((fsa_dev_ptr->valid & 1) == 0) {
 596                                 fsa_dev_ptr->valid = 0;
 597                                 return (*callback)(scsicmd);
 598                         }
 599                 }
 600         }
 601         return status;
 602 }
 603
 604 /**
 605  *      aac_probe_container             -       query a logical volume
 606  *      @dev: device to query
 607  *      @cid: container identifier
 608  *
 609  *      Queries the controller about the given volume. The volume information
 610  *      is updated in the struct fsa_dev_info structure rather than returned.
 611  */
 612 static int aac_probe_container_callback1(struct scsi_cmnd * scsicmd)
 613 {
 614         scsicmd->device = NULL;
 615         return 0;
 616 }
 617
 618 int aac_probe_container(struct aac_dev *dev, int cid)
 619 {
 620         struct scsi_cmnd *scsicmd = kmalloc(sizeof(*scsicmd), GFP_KERNEL);
 621         struct scsi_device *scsidev = kmalloc(sizeof(*scsidev), GFP_KERNEL);
 622         int status;
 623
 624         if (!scsicmd || !scsidev) {
 625                 kfree(scsicmd);
 626                 kfree(scsidev);
 627                 return -ENOMEM;
 628         }
 629         scsicmd->list.next = NULL;
 630         scsicmd->scsi_done = (void (*)(struct scsi_cmnd*))aac_probe_container_callback1;
 631
 632         scsicmd->device = scsidev;
 633         scsidev->sdev_state = 0;
 634         scsidev->id = cid;
 635         scsidev->host = dev->scsi_host_ptr;
 636
 637         if (_aac_probe_container(scsicmd, aac_probe_container_callback1) == 0)
 638                 while (scsicmd->device == scsidev)
 639                         schedule();
 640         kfree(scsidev);
 641         status = scsicmd->SCp.Status;
 642         kfree(scsicmd);
 643         return status;
 644 }
 645
 646 /* Local Structure to set SCSI inquiry data strings */
 647 struct scsi_inq {
 648         char vid[8];         /* Vendor ID */
 649         char pid[16];        /* Product ID */
 650         char prl[4];         /* Product Revision Level */
 651 };
 652
 653 /**
 654  *      InqStrCopy      -       string merge
 655  *      @a:     string to copy from
 656  *      @b:     string to copy to
 657  *
 658  *      Copy a String from one location to another
 659  *      without copying \0
 660  */
 661
 662 static void inqstrcpy(char *a, char *b)
 663 {
 664
 665         while(*a != (char)0)
 666                 *b++ = *a++;
 667 }
 668
 669 static char *container_types[] = {
 670         "None",
 671         "Volume",
 672         "Mirror",
 673         "Stripe",
 674         "RAID5",
 675         "SSRW",
 676         "SSRO",
 677         "Morph",
 678         "Legacy",
 679         "RAID4",
 680         "RAID10",
 681         "RAID00",
 682         "V-MIRRORS",
 683         "PSEUDO R4",
 684         "RAID50",
 685         "RAID5D",
 686         "RAID5D0",
 687         "RAID1E",
 688         "RAID6",
 689         "RAID60",
 690         "Unknown"
 691 };
 692
 693 char * get_container_type(unsigned tindex)
 694 {
 695         if (tindex >= ARRAY_SIZE(container_types))
 696                 tindex = ARRAY_SIZE(container_types) - 1;
 697         return container_types[tindex];
 698 }
 699
 700 /* Function: setinqstr
 701  *
 702  * Arguments: [1] pointer to void [1] int
 703  *
 704  * Purpose: Sets SCSI inquiry data strings for vendor, product
 705  * and revision level. Allows strings to be set in platform dependant
 706  * files instead of in OS dependant driver source.
 707  */
 708
 709 static void setinqstr(struct aac_dev *dev, void *data, int tindex)
 710 {
 711         struct scsi_inq *str;
 712
 713         str = (struct scsi_inq *)(data); /* cast data to scsi inq block */
 714         memset(str, ' ', sizeof(*str));
 715
 716         if (dev->supplement_adapter_info.AdapterTypeText[0]) {
 717                 char * cp = dev->supplement_adapter_info.AdapterTypeText;
 718                 int c = sizeof(str->vid);
 719                 while (*cp && *cp != ' ' && --c)
 720                         ++cp;
 721                 c = *cp;
 722                 *cp = '\0';
 723                 inqstrcpy (dev->supplement_adapter_info.AdapterTypeText,
 724                   str->vid);
 725                 *cp = c;
 726                 while (*cp && *cp != ' ')
 727                         ++cp;
 728                 while (*cp == ' ')
 729                         ++cp;
 730                 /* last six chars reserved for vol type */
 731                 c = 0;
 732                 if (strlen(cp) > sizeof(str->pid)) {
 733                         c = cp[sizeof(str->pid)];
 734                         cp[sizeof(str->pid)] = '\0';
 735                 }
 736                 inqstrcpy (cp, str->pid);
 737                 if (c)
 738                         cp[sizeof(str->pid)] = c;
 739         } else {
 740                 struct aac_driver_ident *mp = aac_get_driver_ident(dev->cardtype);
 741
 742                 inqstrcpy (mp->vname, str->vid);
 743                 /* last six chars reserved for vol type */
 744                 inqstrcpy (mp->model, str->pid);
 745         }
 746
 747         if (tindex < ARRAY_SIZE(container_types)){
 748                 char *findit = str->pid;
 749
 750                 for ( ; *findit != ' '; findit++); /* walk till we find a space */
 751                 /* RAID is superfluous in the context of a RAID device */
 752                 if (memcmp(findit-4, "RAID", 4) == 0)
 753                         *(findit -= 4) = ' ';
 754                 if (((findit - str->pid) + strlen(container_types[tindex]))
 755                  < (sizeof(str->pid) + sizeof(str->prl)))
 756                         inqstrcpy (container_types[tindex], findit + 1);
 757         }
 758         inqstrcpy ("V1.0", str->prl);
 759 }
 760
 761 static void get_container_serial_callback(void *context, struct fib * fibptr)
 762 {
 763         struct aac_get_serial_resp * get_serial_reply;
 764         struct scsi_cmnd * scsicmd;
 765
 766         BUG_ON(fibptr == NULL);
 767
 768         scsicmd = (struct scsi_cmnd *) context;
 769         if (!aac_valid_context(scsicmd, fibptr))
 770                 return;
 771
 772         get_serial_reply = (struct aac_get_serial_resp *) fib_data(fibptr);
 773         /* Failure is irrelevant, using default value instead */
 774         if (le32_to_cpu(get_serial_reply->status) == CT_OK) {
 775                 char sp[13];
 776                 /* EVPD bit set */
 777                 sp[0] = INQD_PDT_DA;
 778                 sp[1] = scsicmd->cmnd[2];
 779                 sp[2] = 0;
 780                 sp[3] = snprintf(sp+4, sizeof(sp)-4, "%08X",
 781                   le32_to_cpu(get_serial_reply->uid));
 782                 aac_internal_transfer(scsicmd, sp, 0, sizeof(sp));
 783         }
 784
 785         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
 786
 787         aac_fib_complete(fibptr);
 788         aac_fib_free(fibptr);
 789         scsicmd->scsi_done(scsicmd);
 790 }
 791
 792 /**
 793  *      aac_get_container_serial - get container serial, none blocking.
 794  */
 795 static int aac_get_container_serial(struct scsi_cmnd * scsicmd)
 796 {
 797         int status;
 798         struct aac_get_serial *dinfo;
 799         struct fib * cmd_fibcontext;
 800         struct aac_dev * dev;
 801
 802         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
 803
 804         if (!(cmd_fibcontext = aac_fib_alloc(dev)))
 805                 return -ENOMEM;
 806
 807         aac_fib_init(cmd_fibcontext);
 808         dinfo = (struct aac_get_serial *) fib_data(cmd_fibcontext);
 809
 810         dinfo->command = cpu_to_le32(VM_ContainerConfig);
 811         dinfo->type = cpu_to_le32(CT_CID_TO_32BITS_UID);
 812         dinfo->cid = cpu_to_le32(scmd_id(scsicmd));
 813
 814         status = aac_fib_send(ContainerCommand,
 815                   cmd_fibcontext,
 816                   sizeof (struct aac_get_serial),
 817                   FsaNormal,
 818                   0, 1,
 819                   (fib_callback) get_container_serial_callback,
 820                   (void *) scsicmd);
 821
 822         /*
 823          *      Check that the command queued to the controller
 824          */
 825         if (status == -EINPROGRESS) {
 826                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
 827                 return 0;
 828         }
 829
 830         printk(KERN_WARNING "aac_get_container_serial: aac_fib_send failed with status: %d.\n", status);
 831         aac_fib_complete(cmd_fibcontext);
 832         aac_fib_free(cmd_fibcontext);
 833         return -1;
 834 }
 835
 836 /* Function: setinqserial
 837  *
 838  * Arguments: [1] pointer to void [1] int
 839  *
 840  * Purpose: Sets SCSI Unit Serial number.
 841  *          This is a fake. We should read a proper
 842  *          serial number from the container. <SuSE>But
 843  *          without docs it's quite hard to do it :-)
 844  *          So this will have to do in the meantime.</SuSE>
 845  */
 846
 847 static int setinqserial(struct aac_dev *dev, void *data, int cid)
 848 {
 849         /*
 850          *      This breaks array migration.
 851          */
 852         return snprintf((char *)(data), sizeof(struct scsi_inq) - 4, "%08X%02X",
 853                         le32_to_cpu(dev->adapter_info.serial[0]), cid);
 854 }
 855
 856 static void set_sense(u8 *sense_buf, u8 sense_key, u8 sense_code,
 857                       u8 a_sense_code, u8 incorrect_length,
 858                       u8 bit_pointer, u16 field_pointer,
 859                       u32 residue)
 860 {
 861         sense_buf[0] = 0xF0;    /* Sense data valid, err code 70h (current error) */
 862         sense_buf[1] = 0;       /* Segment number, always zero */
 863
 864         if (incorrect_length) {
 865                 sense_buf[2] = sense_key | 0x20;/* Set ILI bit | sense key */
 866                 sense_buf[3] = BYTE3(residue);
 867                 sense_buf[4] = BYTE2(residue);
 868                 sense_buf[5] = BYTE1(residue);
 869                 sense_buf[6] = BYTE0(residue);
 870         } else
 871                 sense_buf[2] = sense_key;       /* Sense key */
 872
 873         if (sense_key == ILLEGAL_REQUEST)
 874                 sense_buf[7] = 10;      /* Additional sense length */
 875         else
 876                 sense_buf[7] = 6;       /* Additional sense length */
 877
 878         sense_buf[12] = sense_code;     /* Additional sense code */
 879         sense_buf[13] = a_sense_code;   /* Additional sense code qualifier */
 880         if (sense_key == ILLEGAL_REQUEST) {
 881                 sense_buf[15] = 0;
 882
 883                 if (sense_code == SENCODE_INVALID_PARAM_FIELD)
 884                         sense_buf[15] = 0x80;/* Std sense key specific field */
 885                 /* Illegal parameter is in the parameter block */
 886
 887                 if (sense_code == SENCODE_INVALID_CDB_FIELD)
 888                         sense_buf[15] = 0xc0;/* Std sense key specific field */
 889                 /* Illegal parameter is in the CDB block */
 890                 sense_buf[15] |= bit_pointer;
 891                 sense_buf[16] = field_pointer >> 8;     /* MSB */
 892                 sense_buf[17] = field_pointer;          /* LSB */
 893         }
 894 }
 895
 896 static int aac_bounds_32(struct aac_dev * dev, struct scsi_cmnd * cmd, u64 lba)
 897 {
 898         if (lba & 0xffffffff00000000LL) {
 899                 int cid = scmd_id(cmd);
 900                 dprintk((KERN_DEBUG "aacraid: Illegal lba\n"));
 901                 cmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 |
 902                         SAM_STAT_CHECK_CONDITION;
 903                 set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
 904                             HARDWARE_ERROR,
 905                             SENCODE_INTERNAL_TARGET_FAILURE,
 906                             ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
 907                             0, 0);
 908                 memcpy(cmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
 909                   (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(cmd->sense_buffer))
 910                     ? sizeof(cmd->sense_buffer)
 911                     : sizeof(dev->fsa_dev[cid].sense_data));
 912                 cmd->scsi_done(cmd);
 913                 return 1;
 914         }
 915         return 0;
 916 }
 917
 918 static int aac_bounds_64(struct aac_dev * dev, struct scsi_cmnd * cmd, u64 lba)
 919 {
 920         return 0;
 921 }
 922
 923 static void io_callback(void *context, struct fib * fibptr);
 924
 925 static int aac_read_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count)
 926 {
 927         u16 fibsize;
 928         struct aac_raw_io *readcmd;
 929         aac_fib_init(fib);
 930         readcmd = (struct aac_raw_io *) fib_data(fib);
 931         readcmd->block[0] = cpu_to_le32((u32)(lba&0xffffffff));
 932         readcmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
 933         readcmd->count = cpu_to_le32(count<<9);
 934         readcmd->cid = cpu_to_le16(scmd_id(cmd));
 935         readcmd->flags = cpu_to_le16(IO_TYPE_READ);
 936         readcmd->bpTotal = 0;
 937         readcmd->bpComplete = 0;
 938
 939         aac_build_sgraw(cmd, &readcmd->sg);
 940         fibsize = sizeof(struct aac_raw_io) + ((le32_to_cpu(readcmd->sg.count) - 1) * sizeof (struct sgentryraw));
 941         BUG_ON(fibsize > (fib->dev->max_fib_size - sizeof(struct aac_fibhdr)));
 942         /*
 943          *      Now send the Fib to the adapter
 944          */
 945         return aac_fib_send(ContainerRawIo,
 946                           fib,
 947                           fibsize,
 948                           FsaNormal,
 949                           0, 1,
 950                           (fib_callback) io_callback,
 951                           (void *) cmd);
 952 }
 953
 954 static int aac_read_block64(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count)
 955 {
 956         u16 fibsize;
 957         struct aac_read64 *readcmd;
 958         aac_fib_init(fib);
 959         readcmd = (struct aac_read64 *) fib_data(fib);
 960         readcmd->command = cpu_to_le32(VM_CtHostRead64);
 961         readcmd->cid = cpu_to_le16(scmd_id(cmd));
 962         readcmd->sector_count = cpu_to_le16(count);
 963         readcmd->block = cpu_to_le32((u32)(lba&0xffffffff));
 964         readcmd->pad   = 0;
 965         readcmd->flags = 0;
 966
 967         aac_build_sg64(cmd, &readcmd->sg);
 968         fibsize = sizeof(struct aac_read64) +
 969                 ((le32_to_cpu(readcmd->sg.count) - 1) *
 970                  sizeof (struct sgentry64));
 971         BUG_ON (fibsize > (fib->dev->max_fib_size -
 972                                 sizeof(struct aac_fibhdr)));
 973         /*
 974          *      Now send the Fib to the adapter
 975          */
 976         return aac_fib_send(ContainerCommand64,
 977                           fib,
 978                           fibsize,
 979                           FsaNormal,
 980                           0, 1,
 981                           (fib_callback) io_callback,
 982                           (void *) cmd);
 983 }
 984
 985 static int aac_read_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count)
 986 {
 987         u16 fibsize;
 988         struct aac_read *readcmd;
 989         aac_fib_init(fib);
 990         readcmd = (struct aac_read *) fib_data(fib);
 991         readcmd->command = cpu_to_le32(VM_CtBlockRead);
 992         readcmd->cid = cpu_to_le32(scmd_id(cmd));
 993         readcmd->block = cpu_to_le32((u32)(lba&0xffffffff));
 994         readcmd->count = cpu_to_le32(count * 512);
 995
 996         aac_build_sg(cmd, &readcmd->sg);
 997         fibsize = sizeof(struct aac_read) +
 998                         ((le32_to_cpu(readcmd->sg.count) - 1) *
 999                          sizeof (struct sgentry));
1000         BUG_ON (fibsize > (fib->dev->max_fib_size -
1001                                 sizeof(struct aac_fibhdr)));
1002         /*
1003          *      Now send the Fib to the adapter
1004          */
1005         return aac_fib_send(ContainerCommand,
1006                           fib,
1007                           fibsize,
1008                           FsaNormal,
1009                           0, 1,
1010                           (fib_callback) io_callback,
1011                           (void *) cmd);
1012 }
1013
1014 static int aac_write_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count, int fua)
1015 {
1016         u16 fibsize;
1017         struct aac_raw_io *writecmd;
1018         aac_fib_init(fib);
1019         writecmd = (struct aac_raw_io *) fib_data(fib);
1020         writecmd->block[0] = cpu_to_le32((u32)(lba&0xffffffff));
1021         writecmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
1022         writecmd->count = cpu_to_le32(count<<9);
1023         writecmd->cid = cpu_to_le16(scmd_id(cmd));
1024         writecmd->flags = (fua && ((aac_cache & 5) != 1) &&
1025           (((aac_cache & 5) != 5) || !fib->dev->cache_protected)) ?
1026                 cpu_to_le16(IO_TYPE_WRITE|IO_SUREWRITE) :
1027                 cpu_to_le16(IO_TYPE_WRITE);
1028         writecmd->bpTotal = 0;
1029         writecmd->bpComplete = 0;
1030
1031         aac_build_sgraw(cmd, &writecmd->sg);
1032         fibsize = sizeof(struct aac_raw_io) + ((le32_to_cpu(writecmd->sg.count) - 1) * sizeof (struct sgentryraw));
1033         BUG_ON(fibsize > (fib->dev->max_fib_size - sizeof(struct aac_fibhdr)));
1034         /*
1035          *      Now send the Fib to the adapter
1036          */
1037         return aac_fib_send(ContainerRawIo,
1038                           fib,
1039                           fibsize,
1040                           FsaNormal,
1041                           0, 1,
1042                           (fib_callback) io_callback,
1043                           (void *) cmd);
1044 }
1045
1046 static int aac_write_block64(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count, int fua)
1047 {
1048         u16 fibsize;
1049         struct aac_write64 *writecmd;
1050         aac_fib_init(fib);
1051         writecmd = (struct aac_write64 *) fib_data(fib);
1052         writecmd->command = cpu_to_le32(VM_CtHostWrite64);
1053         writecmd->cid = cpu_to_le16(scmd_id(cmd));
1054         writecmd->sector_count = cpu_to_le16(count);
1055         writecmd->block = cpu_to_le32((u32)(lba&0xffffffff));
1056         writecmd->pad   = 0;
1057         writecmd->flags = 0;
1058
1059         aac_build_sg64(cmd, &writecmd->sg);
1060         fibsize = sizeof(struct aac_write64) +
1061                 ((le32_to_cpu(writecmd->sg.count) - 1) *
1062                  sizeof (struct sgentry64));
1063         BUG_ON (fibsize > (fib->dev->max_fib_size -
1064                                 sizeof(struct aac_fibhdr)));
1065         /*
1066          *      Now send the Fib to the adapter
1067          */
1068         return aac_fib_send(ContainerCommand64,
1069                           fib,
1070                           fibsize,
1071                           FsaNormal,
1072                           0, 1,
1073                           (fib_callback) io_callback,
1074                           (void *) cmd);
1075 }
1076
1077 static int aac_write_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count, int fua)
1078 {
1079         u16 fibsize;
1080         struct aac_write *writecmd;
1081         aac_fib_init(fib);
1082         writecmd = (struct aac_write *) fib_data(fib);
1083         writecmd->command = cpu_to_le32(VM_CtBlockWrite);
1084         writecmd->cid = cpu_to_le32(scmd_id(cmd));
1085         writecmd->block = cpu_to_le32((u32)(lba&0xffffffff));
1086         writecmd->count = cpu_to_le32(count * 512);
1087         writecmd->sg.count = cpu_to_le32(1);
1088         /* ->stable is not used - it did mean which type of write */
1089
1090         aac_build_sg(cmd, &writecmd->sg);
1091         fibsize = sizeof(struct aac_write) +
1092                 ((le32_to_cpu(writecmd->sg.count) - 1) *
1093                  sizeof (struct sgentry));
1094         BUG_ON (fibsize > (fib->dev->max_fib_size -
1095                                 sizeof(struct aac_fibhdr)));
1096         /*
1097          *      Now send the Fib to the adapter
1098          */
1099         return aac_fib_send(ContainerCommand,
1100                           fib,
1101                           fibsize,
1102                           FsaNormal,
1103                           0, 1,
1104                           (fib_callback) io_callback,
1105                           (void *) cmd);
1106 }
1107
1108 static struct aac_srb * aac_scsi_common(struct fib * fib, struct scsi_cmnd * cmd)
1109 {
1110         struct aac_srb * srbcmd;
1111         u32 flag;
1112         u32 timeout;
1113
1114         aac_fib_init(fib);
1115         switch(cmd->sc_data_direction){
1116         case DMA_TO_DEVICE:
1117                 flag = SRB_DataOut;
1118                 break;
1119         case DMA_BIDIRECTIONAL:
1120                 flag = SRB_DataIn | SRB_DataOut;
1121                 break;
1122         case DMA_FROM_DEVICE:
1123                 flag = SRB_DataIn;
1124                 break;
1125         case DMA_NONE:
1126         default:        /* shuts up some versions of gcc */
1127                 flag = SRB_NoDataXfer;
1128                 break;
1129         }
1130
1131         srbcmd = (struct aac_srb*) fib_data(fib);
1132         srbcmd->function = cpu_to_le32(SRBF_ExecuteScsi);
1133         srbcmd->channel  = cpu_to_le32(aac_logical_to_phys(scmd_channel(cmd)));
1134         srbcmd->id       = cpu_to_le32(scmd_id(cmd));
1135         srbcmd->lun      = cpu_to_le32(cmd->device->lun);
1136         srbcmd->flags    = cpu_to_le32(flag);
1137         timeout = cmd->timeout_per_command/HZ;
1138         if (timeout == 0)
1139                 timeout = 1;
1140         srbcmd->timeout  = cpu_to_le32(timeout);  // timeout in seconds
1141         srbcmd->retry_limit = 0; /* Obsolete parameter */
1142         srbcmd->cdb_size = cpu_to_le32(cmd->cmd_len);
1143         return srbcmd;
1144 }
1145
1146 static void aac_srb_callback(void *context, struct fib * fibptr);
1147
1148 static int aac_scsi_64(struct fib * fib, struct scsi_cmnd * cmd)
1149 {
1150         u16 fibsize;
1151         struct aac_srb * srbcmd = aac_scsi_common(fib, cmd);
1152
1153         aac_build_sg64(cmd, (struct sgmap64*) &srbcmd->sg);
1154         srbcmd->count = cpu_to_le32(scsi_bufflen(cmd));
1155
1156         memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
1157         memcpy(srbcmd->cdb, cmd->cmnd, cmd->cmd_len);
1158         /*
1159          *      Build Scatter/Gather list
1160          */
1161         fibsize = sizeof (struct aac_srb) - sizeof (struct sgentry) +
1162                 ((le32_to_cpu(srbcmd->sg.count) & 0xff) *
1163                  sizeof (struct sgentry64));
1164         BUG_ON (fibsize > (fib->dev->max_fib_size -
1165                                 sizeof(struct aac_fibhdr)));
1166
1167         /*
1168          *      Now send the Fib to the adapter
1169          */
1170         return aac_fib_send(ScsiPortCommand64, fib,
1171                                 fibsize, FsaNormal, 0, 1,
1172                                   (fib_callback) aac_srb_callback,
1173                                   (void *) cmd);
1174 }
1175
1176 static int aac_scsi_32(struct fib * fib, struct scsi_cmnd * cmd)
1177 {
1178         u16 fibsize;
1179         struct aac_srb * srbcmd = aac_scsi_common(fib, cmd);
1180
1181         aac_build_sg(cmd, (struct sgmap*)&srbcmd->sg);
1182         srbcmd->count = cpu_to_le32(scsi_bufflen(cmd));
1183
1184         memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
1185         memcpy(srbcmd->cdb, cmd->cmnd, cmd->cmd_len);
1186         /*
1187          *      Build Scatter/Gather list
1188          */
1189         fibsize = sizeof (struct aac_srb) +
1190                 (((le32_to_cpu(srbcmd->sg.count) & 0xff) - 1) *
1191                  sizeof (struct sgentry));
1192         BUG_ON (fibsize > (fib->dev->max_fib_size -
1193                                 sizeof(struct aac_fibhdr)));
1194
1195         /*
1196          *      Now send the Fib to the adapter
1197          */
1198         return aac_fib_send(ScsiPortCommand, fib, fibsize, FsaNormal, 0, 1,
1199                                   (fib_callback) aac_srb_callback, (void *) cmd);
1200 }
1201
1202 static int aac_scsi_32_64(struct fib * fib, struct scsi_cmnd * cmd)
1203 {
1204         if ((sizeof(dma_addr_t) > 4) &&
1205          (num_physpages > (0xFFFFFFFFULL >> PAGE_SHIFT)) &&
1206          (fib->dev->adapter_info.options & AAC_OPT_SGMAP_HOST64))
1207                 return FAILED;
1208         return aac_scsi_32(fib, cmd);
1209 }
1210
1211 int aac_get_adapter_info(struct aac_dev* dev)
1212 {
1213         struct fib* fibptr;
1214         int rcode;
1215         u32 tmp;
1216         struct aac_adapter_info *info;
1217         struct aac_bus_info *command;
1218         struct aac_bus_info_response *bus_info;
1219
1220         if (!(fibptr = aac_fib_alloc(dev)))
1221                 return -ENOMEM;
1222
1223         aac_fib_init(fibptr);
1224         info = (struct aac_adapter_info *) fib_data(fibptr);
1225         memset(info,0,sizeof(*info));
1226
1227         rcode = aac_fib_send(RequestAdapterInfo,
1228                          fibptr,
1229                          sizeof(*info),
1230                          FsaNormal,
1231                          -1, 1, /* First `interrupt' command uses special wait */
1232                          NULL,
1233                          NULL);
1234
1235         if (rcode < 0) {
1236                 aac_fib_complete(fibptr);
1237                 aac_fib_free(fibptr);
1238                 return rcode;
1239         }
1240         memcpy(&dev->adapter_info, info, sizeof(*info));
1241
1242         if (dev->adapter_info.options & AAC_OPT_SUPPLEMENT_ADAPTER_INFO) {
1243                 struct aac_supplement_adapter_info * sinfo;
1244
1245                 aac_fib_init(fibptr);
1246
1247                 sinfo = (struct aac_supplement_adapter_info *) fib_data(fibptr);
1248
1249                 memset(sinfo,0,sizeof(*sinfo));
1250
1251                 rcode = aac_fib_send(RequestSupplementAdapterInfo,
1252                                  fibptr,
1253                                  sizeof(*sinfo),
1254                                  FsaNormal,
1255                                  1, 1,
1256                                  NULL,
1257                                  NULL);
1258
1259                 if (rcode >= 0)
1260                         memcpy(&dev->supplement_adapter_info, sinfo, sizeof(*sinfo));
1261         }
1262
1263
1264         /*
1265          * GetBusInfo
1266          */
1267
1268         aac_fib_init(fibptr);
1269
1270         bus_info = (struct aac_bus_info_response *) fib_data(fibptr);
1271
1272         memset(bus_info, 0, sizeof(*bus_info));
1273
1274         command = (struct aac_bus_info *)bus_info;
1275
1276         command->Command = cpu_to_le32(VM_Ioctl);
1277         command->ObjType = cpu_to_le32(FT_DRIVE);
1278         command->MethodId = cpu_to_le32(1);
1279         command->CtlCmd = cpu_to_le32(GetBusInfo);
1280
1281         rcode = aac_fib_send(ContainerCommand,
1282                          fibptr,
1283                          sizeof (*bus_info),
1284                          FsaNormal,
1285                          1, 1,
1286                          NULL, NULL);
1287
1288         /* reasoned default */
1289         dev->maximum_num_physicals = 16;
1290         if (rcode >= 0 && le32_to_cpu(bus_info->Status) == ST_OK) {
1291                 dev->maximum_num_physicals = le32_to_cpu(bus_info->TargetsPerBus);
1292                 dev->maximum_num_channels = le32_to_cpu(bus_info->BusCount);
1293         }
1294
1295         if (!dev->in_reset) {
1296                 char buffer[16];
1297                 tmp = le32_to_cpu(dev->adapter_info.kernelrev);
1298                 printk(KERN_INFO "%s%d: kernel %d.%d-%d[%d] %.*s\n",
1299                         dev->name,
1300                         dev->id,
1301                         tmp>>24,
1302                         (tmp>>16)&0xff,
1303                         tmp&0xff,
1304                         le32_to_cpu(dev->adapter_info.kernelbuild),
1305                         (int)sizeof(dev->supplement_adapter_info.BuildDate),
1306                         dev->supplement_adapter_info.BuildDate);
1307                 tmp = le32_to_cpu(dev->adapter_info.monitorrev);
1308                 printk(KERN_INFO "%s%d: monitor %d.%d-%d[%d]\n",
1309                         dev->name, dev->id,
1310                         tmp>>24,(tmp>>16)&0xff,tmp&0xff,
1311                         le32_to_cpu(dev->adapter_info.monitorbuild));
1312                 tmp = le32_to_cpu(dev->adapter_info.biosrev);
1313                 printk(KERN_INFO "%s%d: bios %d.%d-%d[%d]\n",
1314                         dev->name, dev->id,
1315                         tmp>>24,(tmp>>16)&0xff,tmp&0xff,
1316                         le32_to_cpu(dev->adapter_info.biosbuild));
1317                 buffer[0] = '\0';
1318                 if (aac_show_serial_number(
1319                   shost_to_class(dev->scsi_host_ptr), buffer))
1320                         printk(KERN_INFO "%s%d: serial %s",
1321                           dev->name, dev->id, buffer);
1322                 if (dev->supplement_adapter_info.VpdInfo.Tsid[0]) {
1323                         printk(KERN_INFO "%s%d: TSID %.*s\n",
1324                           dev->name, dev->id,
1325                           (int)sizeof(dev->supplement_adapter_info.VpdInfo.Tsid),
1326                           dev->supplement_adapter_info.VpdInfo.Tsid);
1327                 }
1328                 if (!aac_check_reset || ((aac_check_reset != 1) &&
1329                   (dev->supplement_adapter_info.SupportedOptions2 &
1330                   AAC_OPTION_IGNORE_RESET))) {
1331                         printk(KERN_INFO "%s%d: Reset Adapter Ignored\n",
1332                           dev->name, dev->id);
1333                 }
1334         }
1335
1336         dev->cache_protected = 0;
1337         dev->nondasd_support = 0;
1338         dev->raid_scsi_mode = 0;
1339         if(dev->adapter_info.options & AAC_OPT_NONDASD)
1340                 dev->nondasd_support = 1;
1341
1342         /*
1343          * If the firmware supports ROMB RAID/SCSI mode and we are currently
1344          * in RAID/SCSI mode, set the flag. For now if in this mode we will
1345          * force nondasd support on. If we decide to allow the non-dasd flag
1346          * additional changes changes will have to be made to support
1347          * RAID/SCSI.  the function aac_scsi_cmd in this module will have to be
1348          * changed to support the new dev->raid_scsi_mode flag instead of
1349          * leaching off of the dev->nondasd_support flag. Also in linit.c the
1350          * function aac_detect will have to be modified where it sets up the
1351          * max number of channels based on the aac->nondasd_support flag only.
1352          */
1353         if ((dev->adapter_info.options & AAC_OPT_SCSI_MANAGED) &&
1354             (dev->adapter_info.options & AAC_OPT_RAID_SCSI_MODE)) {
1355                 dev->nondasd_support = 1;
1356                 dev->raid_scsi_mode = 1;
1357         }
1358         if (dev->raid_scsi_mode != 0)
1359                 printk(KERN_INFO "%s%d: ROMB RAID/SCSI mode enabled\n",
1360                                 dev->name, dev->id);
1361
1362         if (nondasd != -1)
1363                 dev->nondasd_support = (nondasd!=0);
1364         if(dev->nondasd_support != 0) {
1365                 printk(KERN_INFO "%s%d: Non-DASD support enabled.\n",dev->name, dev->id);
1366         }
1367
1368         dev->dac_support = 0;
1369         if( (sizeof(dma_addr_t) > 4) && (dev->adapter_info.options & AAC_OPT_SGMAP_HOST64)){
1370                 printk(KERN_INFO "%s%d: 64bit support enabled.\n", dev->name, dev->id);
1371                 dev->dac_support = 1;
1372         }
1373
1374         if(dacmode != -1) {
1375                 dev->dac_support = (dacmode!=0);
1376         }
1377         if(dev->dac_support != 0) {
1378                 if (!pci_set_dma_mask(dev->pdev, DMA_64BIT_MASK) &&
1379                         !pci_set_consistent_dma_mask(dev->pdev, DMA_64BIT_MASK)) {
1380                         printk(KERN_INFO"%s%d: 64 Bit DAC enabled\n",
1381                                 dev->name, dev->id);
1382                 } else if (!pci_set_dma_mask(dev->pdev, DMA_32BIT_MASK) &&
1383                         !pci_set_consistent_dma_mask(dev->pdev, DMA_32BIT_MASK)) {
1384                         printk(KERN_INFO"%s%d: DMA mask set failed, 64 Bit DAC disabled\n",
1385                                 dev->name, dev->id);
1386                         dev->dac_support = 0;
1387                 } else {
1388                         printk(KERN_WARNING"%s%d: No suitable DMA available.\n",
1389                                 dev->name, dev->id);
1390                         rcode = -ENOMEM;
1391                 }
1392         }
1393         /*
1394          * Deal with configuring for the individualized limits of each packet
1395          * interface.
1396          */
1397         dev->a_ops.adapter_scsi = (dev->dac_support)
1398           ? ((aac_get_driver_ident(dev->cardtype)->quirks & AAC_QUIRK_SCSI_32)
1399                                 ? aac_scsi_32_64
1400                                 : aac_scsi_64)
1401                                 : aac_scsi_32;
1402         if (dev->raw_io_interface) {
1403                 dev->a_ops.adapter_bounds = (dev->raw_io_64)
1404                                         ? aac_bounds_64
1405                                         : aac_bounds_32;
1406                 dev->a_ops.adapter_read = aac_read_raw_io;
1407                 dev->a_ops.adapter_write = aac_write_raw_io;
1408         } else {
1409                 dev->a_ops.adapter_bounds = aac_bounds_32;
1410                 dev->scsi_host_ptr->sg_tablesize = (dev->max_fib_size -
1411                         sizeof(struct aac_fibhdr) -
1412                         sizeof(struct aac_write) + sizeof(struct sgentry)) /
1413                                 sizeof(struct sgentry);
1414                 if (dev->dac_support) {
1415                         dev->a_ops.adapter_read = aac_read_block64;
1416                         dev->a_ops.adapter_write = aac_write_block64;
1417                         /*
1418                          * 38 scatter gather elements
1419                          */
1420                         dev->scsi_host_ptr->sg_tablesize =
1421                                 (dev->max_fib_size -
1422                                 sizeof(struct aac_fibhdr) -
1423                                 sizeof(struct aac_write64) +
1424                                 sizeof(struct sgentry64)) /
1425                                         sizeof(struct sgentry64);
1426                 } else {
1427                         dev->a_ops.adapter_read = aac_read_block;
1428                         dev->a_ops.adapter_write = aac_write_block;
1429                 }
1430                 dev->scsi_host_ptr->max_sectors = AAC_MAX_32BIT_SGBCOUNT;
1431                 if(!(dev->adapter_info.options & AAC_OPT_NEW_COMM)) {
1432                         /*
1433                          * Worst case size that could cause sg overflow when
1434                          * we break up SG elements that are larger than 64KB.
1435                          * Would be nice if we could tell the SCSI layer what
1436                          * the maximum SG element size can be. Worst case is
1437                          * (sg_tablesize-1) 4KB elements with one 64KB
1438                          * element.
1439                          *      32bit -> 468 or 238KB   64bit -> 424 or 212KB
1440                          */
1441                         dev->scsi_host_ptr->max_sectors =
1442                           (dev->scsi_host_ptr->sg_tablesize * 8) + 112;
1443                 }
1444         }
1445
1446         aac_fib_complete(fibptr);
1447         aac_fib_free(fibptr);
1448
1449         return rcode;
1450 }
1451
1452
1453 static void io_callback(void *context, struct fib * fibptr)
1454 {
1455         struct aac_dev *dev;
1456         struct aac_read_reply *readreply;
1457         struct scsi_cmnd *scsicmd;
1458         u32 cid;
1459
1460         scsicmd = (struct scsi_cmnd *) context;
1461
1462         if (!aac_valid_context(scsicmd, fibptr))
1463                 return;
1464
1465         dev = fibptr->dev;
1466         cid = scmd_id(scsicmd);
1467
1468         if (nblank(dprintk(x))) {
1469                 u64 lba;
1470                 switch (scsicmd->cmnd[0]) {
1471                 case WRITE_6:
1472                 case READ_6:
1473                         lba = ((scsicmd->cmnd[1] & 0x1F) << 16) |
1474                             (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
1475                         break;
1476                 case WRITE_16:
1477                 case READ_16:
1478                         lba = ((u64)scsicmd->cmnd[2] << 56) |
1479                               ((u64)scsicmd->cmnd[3] << 48) |
1480                               ((u64)scsicmd->cmnd[4] << 40) |
1481                               ((u64)scsicmd->cmnd[5] << 32) |
1482                               ((u64)scsicmd->cmnd[6] << 24) |
1483                               (scsicmd->cmnd[7] << 16) |
1484                               (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1485                         break;
1486                 case WRITE_12:
1487                 case READ_12:
1488                         lba = ((u64)scsicmd->cmnd[2] << 24) |
1489                               (scsicmd->cmnd[3] << 16) |
1490                               (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1491                         break;
1492                 default:
1493                         lba = ((u64)scsicmd->cmnd[2] << 24) |
1494                                (scsicmd->cmnd[3] << 16) |
1495                                (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1496                         break;
1497                 }
1498                 printk(KERN_DEBUG
1499                   "io_callback[cpu %d]: lba = %llu, t = %ld.\n",
1500                   smp_processor_id(), (unsigned long long)lba, jiffies);
1501         }
1502
1503         BUG_ON(fibptr == NULL);
1504
1505         scsi_dma_unmap(scsicmd);
1506
1507         readreply = (struct aac_read_reply *)fib_data(fibptr);
1508         if (le32_to_cpu(readreply->status) == ST_OK)
1509                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1510         else {
1511 #ifdef AAC_DETAILED_STATUS_INFO
1512                 printk(KERN_WARNING "io_callback: io failed, status = %d\n",
1513                   le32_to_cpu(readreply->status));
1514 #endif
1515                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1516                 set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
1517                                     HARDWARE_ERROR,
1518                                     SENCODE_INTERNAL_TARGET_FAILURE,
1519                                     ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
1520                                     0, 0);
1521                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1522                   (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
1523                     ? sizeof(scsicmd->sense_buffer)
1524                     : sizeof(dev->fsa_dev[cid].sense_data));
1525         }
1526         aac_fib_complete(fibptr);
1527         aac_fib_free(fibptr);
1528
1529         scsicmd->scsi_done(scsicmd);
1530 }
1531
1532 static int aac_read(struct scsi_cmnd * scsicmd)
1533 {
1534         u64 lba;
1535         u32 count;
1536         int status;
1537         struct aac_dev *dev;
1538         struct fib * cmd_fibcontext;
1539
1540         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1541         /*
1542          *      Get block address and transfer length
1543          */
1544         switch (scsicmd->cmnd[0]) {
1545         case READ_6:
1546                 dprintk((KERN_DEBUG "aachba: received a read(6) command on id %d.\n", scmd_id(scsicmd)));
1547
1548                 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) |
1549                         (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
1550                 count = scsicmd->cmnd[4];
1551
1552                 if (count == 0)
1553                         count = 256;
1554                 break;
1555         case READ_16:
1556                 dprintk((KERN_DEBUG "aachba: received a read(16) command on id %d.\n", scmd_id(scsicmd)));
1557
1558                 lba =   ((u64)scsicmd->cmnd[2] << 56) |
1559                         ((u64)scsicmd->cmnd[3] << 48) |
1560                         ((u64)scsicmd->cmnd[4] << 40) |
1561                         ((u64)scsicmd->cmnd[5] << 32) |
1562                         ((u64)scsicmd->cmnd[6] << 24) |
1563                         (scsicmd->cmnd[7] << 16) |
1564                         (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1565                 count = (scsicmd->cmnd[10] << 24) |
1566                         (scsicmd->cmnd[11] << 16) |
1567                         (scsicmd->cmnd[12] << 8) | scsicmd->cmnd[13];
1568                 break;
1569         case READ_12:
1570                 dprintk((KERN_DEBUG "aachba: received a read(12) command on id %d.\n", scmd_id(scsicmd)));
1571
1572                 lba = ((u64)scsicmd->cmnd[2] << 24) |
1573                         (scsicmd->cmnd[3] << 16) |
1574                         (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1575                 count = (scsicmd->cmnd[6] << 24) |
1576                         (scsicmd->cmnd[7] << 16) |
1577                         (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1578                 break;
1579         default:
1580                 dprintk((KERN_DEBUG "aachba: received a read(10) command on id %d.\n", scmd_id(scsicmd)));
1581
1582                 lba = ((u64)scsicmd->cmnd[2] << 24) |
1583                         (scsicmd->cmnd[3] << 16) |
1584                         (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1585                 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
1586                 break;
1587         }
1588         dprintk((KERN_DEBUG "aac_read[cpu %d]: lba = %llu, t = %ld.\n",
1589           smp_processor_id(), (unsigned long long)lba, jiffies));
1590         if (aac_adapter_bounds(dev,scsicmd,lba))
1591                 return 0;
1592         /*
1593          *      Alocate and initialize a Fib
1594          */
1595         if (!(cmd_fibcontext = aac_fib_alloc(dev))) {
1596                 return -1;
1597         }
1598
1599         status = aac_adapter_read(cmd_fibcontext, scsicmd, lba, count);
1600
1601         /*
1602          *      Check that the command queued to the controller
1603          */
1604         if (status == -EINPROGRESS) {
1605                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
1606                 return 0;
1607         }
1608
1609         printk(KERN_WARNING "aac_read: aac_fib_send failed with status: %d.\n", status);
1610         /*
1611          *      For some reason, the Fib didn't queue, return QUEUE_FULL
1612          */
1613         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_TASK_SET_FULL;
1614         scsicmd->scsi_done(scsicmd);
1615         aac_fib_complete(cmd_fibcontext);
1616         aac_fib_free(cmd_fibcontext);
1617         return 0;
1618 }
1619
1620 static int aac_write(struct scsi_cmnd * scsicmd)
1621 {
1622         u64 lba;
1623         u32 count;
1624         int fua;
1625         int status;
1626         struct aac_dev *dev;
1627         struct fib * cmd_fibcontext;
1628
1629         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1630         /*
1631          *      Get block address and transfer length
1632          */
1633         if (scsicmd->cmnd[0] == WRITE_6)        /* 6 byte command */
1634         {
1635                 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
1636                 count = scsicmd->cmnd[4];
1637                 if (count == 0)
1638                         count = 256;
1639                 fua = 0;
1640         } else if (scsicmd->cmnd[0] == WRITE_16) { /* 16 byte command */
1641                 dprintk((KERN_DEBUG "aachba: received a write(16) command on id %d.\n", scmd_id(scsicmd)));
1642
1643                 lba =   ((u64)scsicmd->cmnd[2] << 56) |
1644                         ((u64)scsicmd->cmnd[3] << 48) |
1645                         ((u64)scsicmd->cmnd[4] << 40) |
1646                         ((u64)scsicmd->cmnd[5] << 32) |
1647                         ((u64)scsicmd->cmnd[6] << 24) |
1648                         (scsicmd->cmnd[7] << 16) |
1649                         (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1650                 count = (scsicmd->cmnd[10] << 24) | (scsicmd->cmnd[11] << 16) |
1651                         (scsicmd->cmnd[12] << 8) | scsicmd->cmnd[13];
1652                 fua = scsicmd->cmnd[1] & 0x8;
1653         } else if (scsicmd->cmnd[0] == WRITE_12) { /* 12 byte command */
1654                 dprintk((KERN_DEBUG "aachba: received a write(12) command on id %d.\n", scmd_id(scsicmd)));
1655
1656                 lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16)
1657                     | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1658                 count = (scsicmd->cmnd[6] << 24) | (scsicmd->cmnd[7] << 16)
1659                       | (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1660                 fua = scsicmd->cmnd[1] & 0x8;
1661         } else {
1662                 dprintk((KERN_DEBUG "aachba: received a write(10) command on id %d.\n", scmd_id(scsicmd)));
1663                 lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1664                 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
1665                 fua = scsicmd->cmnd[1] & 0x8;
1666         }
1667         dprintk((KERN_DEBUG "aac_write[cpu %d]: lba = %llu, t = %ld.\n",
1668           smp_processor_id(), (unsigned long long)lba, jiffies));
1669         if (aac_adapter_bounds(dev,scsicmd,lba))
1670                 return 0;
1671         /*
1672          *      Allocate and initialize a Fib then setup a BlockWrite command
1673          */
1674         if (!(cmd_fibcontext = aac_fib_alloc(dev))) {
1675                 scsicmd->result = DID_ERROR << 16;
1676                 scsicmd->scsi_done(scsicmd);
1677                 return 0;
1678         }
1679
1680         status = aac_adapter_write(cmd_fibcontext, scsicmd, lba, count, fua);
1681
1682         /*
1683          *      Check that the command queued to the controller
1684          */
1685         if (status == -EINPROGRESS) {
1686                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
1687                 return 0;
1688         }
1689
1690         printk(KERN_WARNING "aac_write: aac_fib_send failed with status: %d\n", status);
1691         /*
1692          *      For some reason, the Fib didn't queue, return QUEUE_FULL
1693          */
1694         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_TASK_SET_FULL;
1695         scsicmd->scsi_done(scsicmd);
1696
1697         aac_fib_complete(cmd_fibcontext);
1698         aac_fib_free(cmd_fibcontext);
1699         return 0;
1700 }
1701
1702 static void synchronize_callback(void *context, struct fib *fibptr)
1703 {
1704         struct aac_synchronize_reply *synchronizereply;
1705         struct scsi_cmnd *cmd;
1706
1707         cmd = context;
1708
1709         if (!aac_valid_context(cmd, fibptr))
1710                 return;
1711
1712         dprintk((KERN_DEBUG "synchronize_callback[cpu %d]: t = %ld.\n",
1713                                 smp_processor_id(), jiffies));
1714         BUG_ON(fibptr == NULL);
1715
1716
1717         synchronizereply = fib_data(fibptr);
1718         if (le32_to_cpu(synchronizereply->status) == CT_OK)
1719                 cmd->result = DID_OK << 16 |
1720                         COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1721         else {
1722                 struct scsi_device *sdev = cmd->device;
1723                 struct aac_dev *dev = fibptr->dev;
1724                 u32 cid = sdev_id(sdev);
1725                 printk(KERN_WARNING
1726                      "synchronize_callback: synchronize failed, status = %d\n",
1727                      le32_to_cpu(synchronizereply->status));
1728                 cmd->result = DID_OK << 16 |
1729                         COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1730                 set_sense((u8 *)&dev->fsa_dev[cid].sense_data,
1731                                     HARDWARE_ERROR,
1732                                     SENCODE_INTERNAL_TARGET_FAILURE,
1733                                     ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
1734                                     0, 0);
1735                 memcpy(cmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1736                   min(sizeof(dev->fsa_dev[cid].sense_data),
1737                           sizeof(cmd->sense_buffer)));
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 == 1) || expose_physicals) {
1923                                 if (dev->in_reset)
1924                                         return -1;
1925                                 return aac_send_srb_fib(scsicmd);
1926                         } else {
1927                                 scsicmd->result = DID_NO_CONNECT << 16;
1928                                 scsicmd->scsi_done(scsicmd);
1929                                 return 0;
1930                         }
1931                 }
1932         }
1933         /*
1934          * else Command for the controller itself
1935          */
1936         else if ((scsicmd->cmnd[0] != INQUIRY) &&       /* only INQUIRY & TUR cmnd supported for controller */
1937                 (scsicmd->cmnd[0] != TEST_UNIT_READY))
1938         {
1939                 dprintk((KERN_WARNING "Only INQUIRY & TUR command supported for controller, rcvd = 0x%x.\n", scsicmd->cmnd[0]));
1940                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1941                 set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
1942                             ILLEGAL_REQUEST,
1943                             SENCODE_INVALID_COMMAND,
1944                             ASENCODE_INVALID_COMMAND, 0, 0, 0, 0);
1945                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1946                   (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
1947                     ? sizeof(scsicmd->sense_buffer)
1948                     : sizeof(dev->fsa_dev[cid].sense_data));
1949                 scsicmd->scsi_done(scsicmd);
1950                 return 0;
1951         }
1952
1953
1954         /* Handle commands here that don't really require going out to the adapter */
1955         switch (scsicmd->cmnd[0]) {
1956         case INQUIRY:
1957         {
1958                 struct inquiry_data inq_data;
1959
1960                 dprintk((KERN_DEBUG "INQUIRY command, ID: %d.\n", cid));
1961                 memset(&inq_data, 0, sizeof (struct inquiry_data));
1962
1963                 if (scsicmd->cmnd[1] & 0x1 ) {
1964                         char *arr = (char *)&inq_data;
1965
1966                         /* EVPD bit set */
1967                         arr[0] = (scmd_id(scsicmd) == host->this_id) ?
1968                           INQD_PDT_PROC : INQD_PDT_DA;
1969                         if (scsicmd->cmnd[2] == 0) {
1970                                 /* supported vital product data pages */
1971                                 arr[3] = 2;
1972                                 arr[4] = 0x0;
1973                                 arr[5] = 0x80;
1974                                 arr[1] = scsicmd->cmnd[2];
1975                                 aac_internal_transfer(scsicmd, &inq_data, 0,
1976                                   sizeof(inq_data));
1977                                 scsicmd->result = DID_OK << 16 |
1978                                   COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1979                         } else if (scsicmd->cmnd[2] == 0x80) {
1980                                 /* unit serial number page */
1981                                 arr[3] = setinqserial(dev, &arr[4],
1982                                   scmd_id(scsicmd));
1983                                 arr[1] = scsicmd->cmnd[2];
1984                                 aac_internal_transfer(scsicmd, &inq_data, 0,
1985                                   sizeof(inq_data));
1986                                 return aac_get_container_serial(scsicmd);
1987                         } else {
1988                                 /* vpd page not implemented */
1989                                 scsicmd->result = DID_OK << 16 |
1990                                   COMMAND_COMPLETE << 8 |
1991                                   SAM_STAT_CHECK_CONDITION;
1992                                 set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
1993                                   ILLEGAL_REQUEST,
1994                                   SENCODE_INVALID_CDB_FIELD,
1995                                   ASENCODE_NO_SENSE, 0, 7, 2, 0);
1996                                 memcpy(scsicmd->sense_buffer,
1997                                   &dev->fsa_dev[cid].sense_data,
1998                                   (sizeof(dev->fsa_dev[cid].sense_data) >
1999                                     sizeof(scsicmd->sense_buffer))
2000                                        ? sizeof(scsicmd->sense_buffer)
2001                                        : sizeof(dev->fsa_dev[cid].sense_data));
2002                         }
2003                         scsicmd->scsi_done(scsicmd);
2004                         return 0;
2005                 }
2006                 inq_data.inqd_ver = 2;  /* claim compliance to SCSI-2 */
2007                 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 */
2008                 inq_data.inqd_len = 31;
2009                 /*Format for "pad2" is  RelAdr | WBus32 | WBus16 |  Sync  | Linked |Reserved| CmdQue | SftRe */
2010                 inq_data.inqd_pad2= 0x32 ;       /*WBus16|Sync|CmdQue */
2011                 /*
2012                  *      Set the Vendor, Product, and Revision Level
2013                  *      see: <vendor>.c i.e. aac.c
2014                  */
2015                 if (cid == host->this_id) {
2016                         setinqstr(dev, (void *) (inq_data.inqd_vid), ARRAY_SIZE(container_types));
2017                         inq_data.inqd_pdt = INQD_PDT_PROC;      /* Processor device */
2018                         aac_internal_transfer(scsicmd, &inq_data, 0, sizeof(inq_data));
2019                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2020                         scsicmd->scsi_done(scsicmd);
2021                         return 0;
2022                 }
2023                 if (dev->in_reset)
2024                         return -1;
2025                 setinqstr(dev, (void *) (inq_data.inqd_vid), fsa_dev_ptr[cid].type);
2026                 inq_data.inqd_pdt = INQD_PDT_DA;        /* Direct/random access device */
2027                 aac_internal_transfer(scsicmd, &inq_data, 0, sizeof(inq_data));
2028                 return aac_get_container_name(scsicmd);
2029         }
2030         case SERVICE_ACTION_IN:
2031                 if (!(dev->raw_io_interface) ||
2032                     !(dev->raw_io_64) ||
2033                     ((scsicmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16))
2034                         break;
2035         {
2036                 u64 capacity;
2037                 char cp[13];
2038
2039                 dprintk((KERN_DEBUG "READ CAPACITY_16 command.\n"));
2040                 capacity = fsa_dev_ptr[cid].size - 1;
2041                 cp[0] = (capacity >> 56) & 0xff;
2042                 cp[1] = (capacity >> 48) & 0xff;
2043                 cp[2] = (capacity >> 40) & 0xff;
2044                 cp[3] = (capacity >> 32) & 0xff;
2045                 cp[4] = (capacity >> 24) & 0xff;
2046                 cp[5] = (capacity >> 16) & 0xff;
2047                 cp[6] = (capacity >> 8) & 0xff;
2048                 cp[7] = (capacity >> 0) & 0xff;
2049                 cp[8] = 0;
2050                 cp[9] = 0;
2051                 cp[10] = 2;
2052                 cp[11] = 0;
2053                 cp[12] = 0;
2054                 aac_internal_transfer(scsicmd, cp, 0,
2055                   min_t(size_t, scsicmd->cmnd[13], sizeof(cp)));
2056                 if (sizeof(cp) < scsicmd->cmnd[13]) {
2057                         unsigned int len, offset = sizeof(cp);
2058
2059                         memset(cp, 0, offset);
2060                         do {
2061                                 len = min_t(size_t, scsicmd->cmnd[13] - offset,
2062                                                 sizeof(cp));
2063                                 aac_internal_transfer(scsicmd, cp, offset, len);
2064                         } while ((offset += len) < scsicmd->cmnd[13]);
2065                 }
2066
2067                 /* Do not cache partition table for arrays */
2068                 scsicmd->device->removable = 1;
2069
2070                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2071                 scsicmd->scsi_done(scsicmd);
2072
2073                 return 0;
2074         }
2075
2076         case READ_CAPACITY:
2077         {
2078                 u32 capacity;
2079                 char cp[8];
2080
2081                 dprintk((KERN_DEBUG "READ CAPACITY command.\n"));
2082                 if (fsa_dev_ptr[cid].size <= 0x100000000ULL)
2083                         capacity = fsa_dev_ptr[cid].size - 1;
2084                 else
2085                         capacity = (u32)-1;
2086
2087                 cp[0] = (capacity >> 24) & 0xff;
2088                 cp[1] = (capacity >> 16) & 0xff;
2089                 cp[2] = (capacity >> 8) & 0xff;
2090                 cp[3] = (capacity >> 0) & 0xff;
2091                 cp[4] = 0;
2092                 cp[5] = 0;
2093                 cp[6] = 2;
2094                 cp[7] = 0;
2095                 aac_internal_transfer(scsicmd, cp, 0, sizeof(cp));
2096                 /* Do not cache partition table for arrays */
2097                 scsicmd->device->removable = 1;
2098
2099                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2100                 scsicmd->scsi_done(scsicmd);
2101
2102                 return 0;
2103         }
2104
2105         case MODE_SENSE:
2106         {
2107                 char mode_buf[7];
2108                 int mode_buf_length = 4;
2109
2110                 dprintk((KERN_DEBUG "MODE SENSE command.\n"));
2111                 mode_buf[0] = 3;        /* Mode data length */
2112                 mode_buf[1] = 0;        /* Medium type - default */
2113                 mode_buf[2] = 0;        /* Device-specific param,
2114                                            bit 8: 0/1 = write enabled/protected
2115                                            bit 4: 0/1 = FUA enabled */
2116                 if (dev->raw_io_interface && ((aac_cache & 5) != 1))
2117                         mode_buf[2] = 0x10;
2118                 mode_buf[3] = 0;        /* Block descriptor length */
2119                 if (((scsicmd->cmnd[2] & 0x3f) == 8) ||
2120                   ((scsicmd->cmnd[2] & 0x3f) == 0x3f)) {
2121                         mode_buf[0] = 6;
2122                         mode_buf[4] = 8;
2123                         mode_buf[5] = 1;
2124                         mode_buf[6] = ((aac_cache & 6) == 2)
2125                                 ? 0 : 0x04; /* WCE */
2126                         mode_buf_length = 7;
2127                         if (mode_buf_length > scsicmd->cmnd[4])
2128                                 mode_buf_length = scsicmd->cmnd[4];
2129                 }
2130                 aac_internal_transfer(scsicmd, mode_buf, 0, mode_buf_length);
2131                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2132                 scsicmd->scsi_done(scsicmd);
2133
2134                 return 0;
2135         }
2136         case MODE_SENSE_10:
2137         {
2138                 char mode_buf[11];
2139                 int mode_buf_length = 8;
2140
2141                 dprintk((KERN_DEBUG "MODE SENSE 10 byte command.\n"));
2142                 mode_buf[0] = 0;        /* Mode data length (MSB) */
2143                 mode_buf[1] = 6;        /* Mode data length (LSB) */
2144                 mode_buf[2] = 0;        /* Medium type - default */
2145                 mode_buf[3] = 0;        /* Device-specific param,
2146                                            bit 8: 0/1 = write enabled/protected
2147                                            bit 4: 0/1 = FUA enabled */
2148                 if (dev->raw_io_interface && ((aac_cache & 5) != 1))
2149                         mode_buf[3] = 0x10;
2150                 mode_buf[4] = 0;        /* reserved */
2151                 mode_buf[5] = 0;        /* reserved */
2152                 mode_buf[6] = 0;        /* Block descriptor length (MSB) */
2153                 mode_buf[7] = 0;        /* Block descriptor length (LSB) */
2154                 if (((scsicmd->cmnd[2] & 0x3f) == 8) ||
2155                   ((scsicmd->cmnd[2] & 0x3f) == 0x3f)) {
2156                         mode_buf[1] = 9;
2157                         mode_buf[8] = 8;
2158                         mode_buf[9] = 1;
2159                         mode_buf[10] = ((aac_cache & 6) == 2)
2160                                 ? 0 : 0x04; /* WCE */
2161                         mode_buf_length = 11;
2162                         if (mode_buf_length > scsicmd->cmnd[8])
2163                                 mode_buf_length = scsicmd->cmnd[8];
2164                 }
2165                 aac_internal_transfer(scsicmd, mode_buf, 0, mode_buf_length);
2166
2167                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2168                 scsicmd->scsi_done(scsicmd);
2169
2170                 return 0;
2171         }
2172         case REQUEST_SENSE:
2173                 dprintk((KERN_DEBUG "REQUEST SENSE command.\n"));
2174                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data, sizeof (struct sense_data));
2175                 memset(&dev->fsa_dev[cid].sense_data, 0, sizeof (struct sense_data));
2176                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2177                 scsicmd->scsi_done(scsicmd);
2178                 return 0;
2179
2180         case ALLOW_MEDIUM_REMOVAL:
2181                 dprintk((KERN_DEBUG "LOCK command.\n"));
2182                 if (scsicmd->cmnd[4])
2183                         fsa_dev_ptr[cid].locked = 1;
2184                 else
2185                         fsa_dev_ptr[cid].locked = 0;
2186
2187                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2188                 scsicmd->scsi_done(scsicmd);
2189                 return 0;
2190         /*
2191          *      These commands are all No-Ops
2192          */
2193         case TEST_UNIT_READY:
2194         case RESERVE:
2195         case RELEASE:
2196         case REZERO_UNIT:
2197         case REASSIGN_BLOCKS:
2198         case SEEK_10:
2199         case START_STOP:
2200                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2201                 scsicmd->scsi_done(scsicmd);
2202                 return 0;
2203         }
2204
2205         switch (scsicmd->cmnd[0])
2206         {
2207                 case READ_6:
2208                 case READ_10:
2209                 case READ_12:
2210                 case READ_16:
2211                         if (dev->in_reset)
2212                                 return -1;
2213                         /*
2214                          *      Hack to keep track of ordinal number of the device that
2215                          *      corresponds to a container. Needed to convert
2216                          *      containers to /dev/sd device names
2217                          */
2218
2219                         if (scsicmd->request->rq_disk)
2220                                 strlcpy(fsa_dev_ptr[cid].devname,
2221                                 scsicmd->request->rq_disk->disk_name,
2222                                 min(sizeof(fsa_dev_ptr[cid].devname),
2223                                 sizeof(scsicmd->request->rq_disk->disk_name) + 1));
2224
2225                         return aac_read(scsicmd);
2226
2227                 case WRITE_6:
2228                 case WRITE_10:
2229                 case WRITE_12:
2230                 case WRITE_16:
2231                         if (dev->in_reset)
2232                                 return -1;
2233                         return aac_write(scsicmd);
2234
2235                 case SYNCHRONIZE_CACHE:
2236                         if (((aac_cache & 6) == 6) && dev->cache_protected) {
2237                                 scsicmd->result = DID_OK << 16 |
2238                                         COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2239                                 scsicmd->scsi_done(scsicmd);
2240                                 return 0;
2241                         }
2242                         /* Issue FIB to tell Firmware to flush it's cache */
2243                         if ((aac_cache & 6) != 2)
2244                                 return aac_synchronize(scsicmd);
2245                         /* FALLTHRU */
2246                 default:
2247                         /*
2248                          *      Unhandled commands
2249                          */
2250                         dprintk((KERN_WARNING "Unhandled SCSI Command: 0x%x.\n", scsicmd->cmnd[0]));
2251                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
2252                         set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
2253                                 ILLEGAL_REQUEST, SENCODE_INVALID_COMMAND,
2254                                 ASENCODE_INVALID_COMMAND, 0, 0, 0, 0);
2255                         memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
2256                           (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
2257                             ? sizeof(scsicmd->sense_buffer)
2258                             : sizeof(dev->fsa_dev[cid].sense_data));
2259                         scsicmd->scsi_done(scsicmd);
2260                         return 0;
2261         }
2262 }
2263
2264 static int query_disk(struct aac_dev *dev, void __user *arg)
2265 {
2266         struct aac_query_disk qd;
2267         struct fsa_dev_info *fsa_dev_ptr;
2268
2269         fsa_dev_ptr = dev->fsa_dev;
2270         if (!fsa_dev_ptr)
2271                 return -EBUSY;
2272         if (copy_from_user(&qd, arg, sizeof (struct aac_query_disk)))
2273                 return -EFAULT;
2274         if (qd.cnum == -1)
2275                 qd.cnum = qd.id;
2276         else if ((qd.bus == -1) && (qd.id == -1) && (qd.lun == -1))
2277         {
2278                 if (qd.cnum < 0 || qd.cnum >= dev->maximum_num_containers)
2279                         return -EINVAL;
2280                 qd.instance = dev->scsi_host_ptr->host_no;
2281                 qd.bus = 0;
2282                 qd.id = CONTAINER_TO_ID(qd.cnum);
2283                 qd.lun = CONTAINER_TO_LUN(qd.cnum);
2284         }
2285         else return -EINVAL;
2286
2287         qd.valid = fsa_dev_ptr[qd.cnum].valid != 0;
2288         qd.locked = fsa_dev_ptr[qd.cnum].locked;
2289         qd.deleted = fsa_dev_ptr[qd.cnum].deleted;
2290
2291         if (fsa_dev_ptr[qd.cnum].devname[0] == '\0')
2292                 qd.unmapped = 1;
2293         else
2294                 qd.unmapped = 0;
2295
2296         strlcpy(qd.name, fsa_dev_ptr[qd.cnum].devname,
2297           min(sizeof(qd.name), sizeof(fsa_dev_ptr[qd.cnum].devname) + 1));
2298
2299         if (copy_to_user(arg, &qd, sizeof (struct aac_query_disk)))
2300                 return -EFAULT;
2301         return 0;
2302 }
2303
2304 static int force_delete_disk(struct aac_dev *dev, void __user *arg)
2305 {
2306         struct aac_delete_disk dd;
2307         struct fsa_dev_info *fsa_dev_ptr;
2308
2309         fsa_dev_ptr = dev->fsa_dev;
2310         if (!fsa_dev_ptr)
2311                 return -EBUSY;
2312
2313         if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
2314                 return -EFAULT;
2315
2316         if (dd.cnum >= dev->maximum_num_containers)
2317                 return -EINVAL;
2318         /*
2319          *      Mark this container as being deleted.
2320          */
2321         fsa_dev_ptr[dd.cnum].deleted = 1;
2322         /*
2323          *      Mark the container as no longer valid
2324          */
2325         fsa_dev_ptr[dd.cnum].valid = 0;
2326         return 0;
2327 }
2328
2329 static int delete_disk(struct aac_dev *dev, void __user *arg)
2330 {
2331         struct aac_delete_disk dd;
2332         struct fsa_dev_info *fsa_dev_ptr;
2333
2334         fsa_dev_ptr = dev->fsa_dev;
2335         if (!fsa_dev_ptr)
2336                 return -EBUSY;
2337
2338         if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
2339                 return -EFAULT;
2340
2341         if (dd.cnum >= dev->maximum_num_containers)
2342                 return -EINVAL;
2343         /*
2344          *      If the container is locked, it can not be deleted by the API.
2345          */
2346         if (fsa_dev_ptr[dd.cnum].locked)
2347                 return -EBUSY;
2348         else {
2349                 /*
2350                  *      Mark the container as no longer being valid.
2351                  */
2352                 fsa_dev_ptr[dd.cnum].valid = 0;
2353                 fsa_dev_ptr[dd.cnum].devname[0] = '\0';
2354                 return 0;
2355         }
2356 }
2357
2358 int aac_dev_ioctl(struct aac_dev *dev, int cmd, void __user *arg)
2359 {
2360         switch (cmd) {
2361         case FSACTL_QUERY_DISK:
2362                 return query_disk(dev, arg);
2363         case FSACTL_DELETE_DISK:
2364                 return delete_disk(dev, arg);
2365         case FSACTL_FORCE_DELETE_DISK:
2366                 return force_delete_disk(dev, arg);
2367         case FSACTL_GET_CONTAINERS:
2368                 return aac_get_containers(dev);
2369         default:
2370                 return -ENOTTY;
2371         }
2372 }
2373
2374 /**
2375  *
2376  * aac_srb_callback
2377  * @context: the context set in the fib - here it is scsi cmd
2378  * @fibptr: pointer to the fib
2379  *
2380  * Handles the completion of a scsi command to a non dasd device
2381  *
2382  */
2383
2384 static void aac_srb_callback(void *context, struct fib * fibptr)
2385 {
2386         struct aac_dev *dev;
2387         struct aac_srb_reply *srbreply;
2388         struct scsi_cmnd *scsicmd;
2389
2390         scsicmd = (struct scsi_cmnd *) context;
2391
2392         if (!aac_valid_context(scsicmd, fibptr))
2393                 return;
2394
2395         BUG_ON(fibptr == NULL);
2396
2397         dev = fibptr->dev;
2398
2399         srbreply = (struct aac_srb_reply *) fib_data(fibptr);
2400
2401         scsicmd->sense_buffer[0] = '\0';  /* Initialize sense valid flag to false */
2402         /*
2403          *      Calculate resid for sg
2404          */
2405
2406         scsi_set_resid(scsicmd, scsi_bufflen(scsicmd)
2407                        - le32_to_cpu(srbreply->data_xfer_length));
2408
2409         scsi_dma_unmap(scsicmd);
2410
2411         /*
2412          * First check the fib status
2413          */
2414
2415         if (le32_to_cpu(srbreply->status) != ST_OK){
2416                 int len;
2417                 printk(KERN_WARNING "aac_srb_callback: srb failed, status = %d\n", le32_to_cpu(srbreply->status));
2418                 len = (le32_to_cpu(srbreply->sense_data_size) >
2419                                 sizeof(scsicmd->sense_buffer)) ?
2420                                 sizeof(scsicmd->sense_buffer) :
2421                                 le32_to_cpu(srbreply->sense_data_size);
2422                 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
2423                 memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
2424         }
2425
2426         /*
2427          * Next check the srb status
2428          */
2429         switch( (le32_to_cpu(srbreply->srb_status))&0x3f){
2430         case SRB_STATUS_ERROR_RECOVERY:
2431         case SRB_STATUS_PENDING:
2432         case SRB_STATUS_SUCCESS:
2433                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
2434                 break;
2435         case SRB_STATUS_DATA_OVERRUN:
2436                 switch(scsicmd->cmnd[0]){
2437                 case  READ_6:
2438                 case  WRITE_6:
2439                 case  READ_10:
2440                 case  WRITE_10:
2441                 case  READ_12:
2442                 case  WRITE_12:
2443                 case  READ_16:
2444                 case  WRITE_16:
2445                         if(le32_to_cpu(srbreply->data_xfer_length) < scsicmd->underflow ) {
2446                                 printk(KERN_WARNING"aacraid: SCSI CMD underflow\n");
2447                         } else {
2448                                 printk(KERN_WARNING"aacraid: SCSI CMD Data Overrun\n");
2449                         }
2450                         scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
2451                         break;
2452                 case INQUIRY: {
2453                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
2454                         break;
2455                 }
2456                 default:
2457                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
2458                         break;
2459                 }
2460                 break;
2461         case SRB_STATUS_ABORTED:
2462                 scsicmd->result = DID_ABORT << 16 | ABORT << 8;
2463                 break;
2464         case SRB_STATUS_ABORT_FAILED:
2465                 // Not sure about this one - but assuming the hba was trying to abort for some reason
2466                 scsicmd->result = DID_ERROR << 16 | ABORT << 8;
2467                 break;
2468         case SRB_STATUS_PARITY_ERROR:
2469                 scsicmd->result = DID_PARITY << 16 | MSG_PARITY_ERROR << 8;
2470                 break;
2471         case SRB_STATUS_NO_DEVICE:
2472         case SRB_STATUS_INVALID_PATH_ID:
2473         case SRB_STATUS_INVALID_TARGET_ID:
2474         case SRB_STATUS_INVALID_LUN:
2475         case SRB_STATUS_SELECTION_TIMEOUT:
2476                 scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8;
2477                 break;
2478
2479         case SRB_STATUS_COMMAND_TIMEOUT:
2480         case SRB_STATUS_TIMEOUT:
2481                 scsicmd->result = DID_TIME_OUT << 16 | COMMAND_COMPLETE << 8;
2482                 break;
2483
2484         case SRB_STATUS_BUSY:
2485                 scsicmd->result = DID_BUS_BUSY << 16 | COMMAND_COMPLETE << 8;
2486                 break;
2487
2488         case SRB_STATUS_BUS_RESET:
2489                 scsicmd->result = DID_RESET << 16 | COMMAND_COMPLETE << 8;
2490                 break;
2491
2492         case SRB_STATUS_MESSAGE_REJECTED:
2493                 scsicmd->result = DID_ERROR << 16 | MESSAGE_REJECT << 8;
2494                 break;
2495         case SRB_STATUS_REQUEST_FLUSHED:
2496         case SRB_STATUS_ERROR:
2497         case SRB_STATUS_INVALID_REQUEST:
2498         case SRB_STATUS_REQUEST_SENSE_FAILED:
2499         case SRB_STATUS_NO_HBA:
2500         case SRB_STATUS_UNEXPECTED_BUS_FREE:
2501         case SRB_STATUS_PHASE_SEQUENCE_FAILURE:
2502         case SRB_STATUS_BAD_SRB_BLOCK_LENGTH:
2503         case SRB_STATUS_DELAYED_RETRY:
2504         case SRB_STATUS_BAD_FUNCTION:
2505         case SRB_STATUS_NOT_STARTED:
2506         case SRB_STATUS_NOT_IN_USE:
2507         case SRB_STATUS_FORCE_ABORT:
2508         case SRB_STATUS_DOMAIN_VALIDATION_FAIL:
2509         default:
2510 #ifdef AAC_DETAILED_STATUS_INFO
2511                 printk("aacraid: SRB ERROR(%u) %s scsi cmd 0x%x - scsi status 0x%x\n",
2512                         le32_to_cpu(srbreply->srb_status) & 0x3F,
2513                         aac_get_status_string(
2514                                 le32_to_cpu(srbreply->srb_status) & 0x3F),
2515                         scsicmd->cmnd[0],
2516                         le32_to_cpu(srbreply->scsi_status));
2517 #endif
2518                 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
2519                 break;
2520         }
2521         if (le32_to_cpu(srbreply->scsi_status) == 0x02 ){  // Check Condition
2522                 int len;
2523                 scsicmd->result |= SAM_STAT_CHECK_CONDITION;
2524                 len = (le32_to_cpu(srbreply->sense_data_size) >
2525                                 sizeof(scsicmd->sense_buffer)) ?
2526                                 sizeof(scsicmd->sense_buffer) :
2527                                 le32_to_cpu(srbreply->sense_data_size);
2528 #ifdef AAC_DETAILED_STATUS_INFO
2529                 printk(KERN_WARNING "aac_srb_callback: check condition, status = %d len=%d\n",
2530                                         le32_to_cpu(srbreply->status), len);
2531 #endif
2532                 memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
2533
2534         }
2535         /*
2536          * OR in the scsi status (already shifted up a bit)
2537          */
2538         scsicmd->result |= le32_to_cpu(srbreply->scsi_status);
2539
2540         aac_fib_complete(fibptr);
2541         aac_fib_free(fibptr);
2542         scsicmd->scsi_done(scsicmd);
2543 }
2544
2545 /**
2546  *
2547  * aac_send_scb_fib
2548  * @scsicmd: the scsi command block
2549  *
2550  * This routine will form a FIB and fill in the aac_srb from the
2551  * scsicmd passed in.
2552  */
2553
2554 static int aac_send_srb_fib(struct scsi_cmnd* scsicmd)
2555 {
2556         struct fib* cmd_fibcontext;
2557         struct aac_dev* dev;
2558         int status;
2559
2560         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2561         if (scmd_id(scsicmd) >= dev->maximum_num_physicals ||
2562                         scsicmd->device->lun > 7) {
2563                 scsicmd->result = DID_NO_CONNECT << 16;
2564                 scsicmd->scsi_done(scsicmd);
2565                 return 0;
2566         }
2567
2568         /*
2569          *      Allocate and initialize a Fib then setup a BlockWrite command
2570          */
2571         if (!(cmd_fibcontext = aac_fib_alloc(dev))) {
2572                 return -1;
2573         }
2574         status = aac_adapter_scsi(cmd_fibcontext, scsicmd);
2575
2576         /*
2577          *      Check that the command queued to the controller
2578          */
2579         if (status == -EINPROGRESS) {
2580                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
2581                 return 0;
2582         }
2583
2584         printk(KERN_WARNING "aac_srb: aac_fib_send failed with status: %d\n", status);
2585         aac_fib_complete(cmd_fibcontext);
2586         aac_fib_free(cmd_fibcontext);
2587
2588         return -1;
2589 }
2590
2591 static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* psg)
2592 {
2593         struct aac_dev *dev;
2594         unsigned long byte_count = 0;
2595         int nseg;
2596
2597         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2598         // Get rid of old data
2599         psg->count = 0;
2600         psg->sg[0].addr = 0;
2601         psg->sg[0].count = 0;
2602
2603         nseg = scsi_dma_map(scsicmd);
2604         BUG_ON(nseg < 0);
2605         if (nseg) {
2606                 struct scatterlist *sg;
2607                 int i;
2608
2609                 psg->count = cpu_to_le32(nseg);
2610
2611                 scsi_for_each_sg(scsicmd, sg, nseg, i) {
2612                         psg->sg[i].addr = cpu_to_le32(sg_dma_address(sg));
2613                         psg->sg[i].count = cpu_to_le32(sg_dma_len(sg));
2614                         byte_count += sg_dma_len(sg);
2615                 }
2616                 /* hba wants the size to be exact */
2617                 if (byte_count > scsi_bufflen(scsicmd)) {
2618                         u32 temp = le32_to_cpu(psg->sg[i-1].count) -
2619                                 (byte_count - scsi_bufflen(scsicmd));
2620                         psg->sg[i-1].count = cpu_to_le32(temp);
2621                         byte_count = scsi_bufflen(scsicmd);
2622                 }
2623                 /* Check for command underflow */
2624                 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2625                         printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2626                                         byte_count, scsicmd->underflow);
2627                 }
2628         }
2629         return byte_count;
2630 }
2631
2632
2633 static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* psg)
2634 {
2635         struct aac_dev *dev;
2636         unsigned long byte_count = 0;
2637         u64 addr;
2638         int nseg;
2639
2640         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2641         // Get rid of old data
2642         psg->count = 0;
2643         psg->sg[0].addr[0] = 0;
2644         psg->sg[0].addr[1] = 0;
2645         psg->sg[0].count = 0;
2646
2647         nseg = scsi_dma_map(scsicmd);
2648         BUG_ON(nseg < 0);
2649         if (nseg) {
2650                 struct scatterlist *sg;
2651                 int i;
2652
2653                 scsi_for_each_sg(scsicmd, sg, nseg, i) {
2654                         int count = sg_dma_len(sg);
2655                         addr = sg_dma_address(sg);
2656                         psg->sg[i].addr[0] = cpu_to_le32(addr & 0xffffffff);
2657                         psg->sg[i].addr[1] = cpu_to_le32(addr>>32);
2658                         psg->sg[i].count = cpu_to_le32(count);
2659                         byte_count += count;
2660                 }
2661                 psg->count = cpu_to_le32(nseg);
2662                 /* hba wants the size to be exact */
2663                 if (byte_count > scsi_bufflen(scsicmd)) {
2664                         u32 temp = le32_to_cpu(psg->sg[i-1].count) -
2665                                 (byte_count - scsi_bufflen(scsicmd));
2666                         psg->sg[i-1].count = cpu_to_le32(temp);
2667                         byte_count = scsi_bufflen(scsicmd);
2668                 }
2669                 /* Check for command underflow */
2670                 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2671                         printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2672                                         byte_count, scsicmd->underflow);
2673                 }
2674         }
2675         return byte_count;
2676 }
2677
2678 static unsigned long aac_build_sgraw(struct scsi_cmnd* scsicmd, struct sgmapraw* psg)
2679 {
2680         unsigned long byte_count = 0;
2681         int nseg;
2682
2683         // Get rid of old data
2684         psg->count = 0;
2685         psg->sg[0].next = 0;
2686         psg->sg[0].prev = 0;
2687         psg->sg[0].addr[0] = 0;
2688         psg->sg[0].addr[1] = 0;
2689         psg->sg[0].count = 0;
2690         psg->sg[0].flags = 0;
2691
2692         nseg = scsi_dma_map(scsicmd);
2693         BUG_ON(nseg < 0);
2694         if (nseg) {
2695                 struct scatterlist *sg;
2696                 int i;
2697
2698                 scsi_for_each_sg(scsicmd, sg, nseg, i) {
2699                         int count = sg_dma_len(sg);
2700                         u64 addr = sg_dma_address(sg);
2701                         psg->sg[i].next = 0;
2702                         psg->sg[i].prev = 0;
2703                         psg->sg[i].addr[1] = cpu_to_le32((u32)(addr>>32));
2704                         psg->sg[i].addr[0] = cpu_to_le32((u32)(addr & 0xffffffff));
2705                         psg->sg[i].count = cpu_to_le32(count);
2706                         psg->sg[i].flags = 0;
2707                         byte_count += count;
2708                 }
2709                 psg->count = cpu_to_le32(nseg);
2710                 /* hba wants the size to be exact */
2711                 if (byte_count > scsi_bufflen(scsicmd)) {
2712                         u32 temp = le32_to_cpu(psg->sg[i-1].count) -
2713                                 (byte_count - scsi_bufflen(scsicmd));
2714                         psg->sg[i-1].count = cpu_to_le32(temp);
2715                         byte_count = scsi_bufflen(scsicmd);
2716                 }
2717                 /* Check for command underflow */
2718                 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2719                         printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2720                                         byte_count, scsicmd->underflow);
2721                 }
2722         }
2723         return byte_count;
2724 }
2725
2726 #ifdef AAC_DETAILED_STATUS_INFO
2727
2728 struct aac_srb_status_info {
2729         u32     status;
2730         char    *str;
2731 };
2732
2733
2734 static struct aac_srb_status_info srb_status_info[] = {
2735         { SRB_STATUS_PENDING,           "Pending Status"},
2736         { SRB_STATUS_SUCCESS,           "Success"},
2737         { SRB_STATUS_ABORTED,           "Aborted Command"},
2738         { SRB_STATUS_ABORT_FAILED,      "Abort Failed"},
2739         { SRB_STATUS_ERROR,             "Error Event"},
2740         { SRB_STATUS_BUSY,              "Device Busy"},
2741         { SRB_STATUS_INVALID_REQUEST,   "Invalid Request"},
2742         { SRB_STATUS_INVALID_PATH_ID,   "Invalid Path ID"},
2743         { SRB_STATUS_NO_DEVICE,         "No Device"},
2744         { SRB_STATUS_TIMEOUT,           "Timeout"},
2745         { SRB_STATUS_SELECTION_TIMEOUT, "Selection Timeout"},
2746         { SRB_STATUS_COMMAND_TIMEOUT,   "Command Timeout"},
2747         { SRB_STATUS_MESSAGE_REJECTED,  "Message Rejected"},
2748         { SRB_STATUS_BUS_RESET,         "Bus Reset"},
2749         { SRB_STATUS_PARITY_ERROR,      "Parity Error"},
2750         { SRB_STATUS_REQUEST_SENSE_FAILED,"Request Sense Failed"},
2751         { SRB_STATUS_NO_HBA,            "No HBA"},
2752         { SRB_STATUS_DATA_OVERRUN,      "Data Overrun/Data Underrun"},
2753         { SRB_STATUS_UNEXPECTED_BUS_FREE,"Unexpected Bus Free"},
2754         { SRB_STATUS_PHASE_SEQUENCE_FAILURE,"Phase Error"},
2755         { SRB_STATUS_BAD_SRB_BLOCK_LENGTH,"Bad Srb Block Length"},
2756         { SRB_STATUS_REQUEST_FLUSHED,   "Request Flushed"},
2757         { SRB_STATUS_DELAYED_RETRY,     "Delayed Retry"},
2758         { SRB_STATUS_INVALID_LUN,       "Invalid LUN"},
2759         { SRB_STATUS_INVALID_TARGET_ID, "Invalid TARGET ID"},
2760         { SRB_STATUS_BAD_FUNCTION,      "Bad Function"},
2761         { SRB_STATUS_ERROR_RECOVERY,    "Error Recovery"},
2762         { SRB_STATUS_NOT_STARTED,       "Not Started"},
2763         { SRB_STATUS_NOT_IN_USE,        "Not In Use"},
2764         { SRB_STATUS_FORCE_ABORT,       "Force Abort"},
2765         { SRB_STATUS_DOMAIN_VALIDATION_FAIL,"Domain Validation Failure"},
2766         { 0xff,                         "Unknown Error"}
2767 };
2768
2769 char *aac_get_status_string(u32 status)
2770 {
2771         int i;
2772
2773         for (i = 0; i < ARRAY_SIZE(srb_status_info); i++)
2774                 if (srb_status_info[i].status == status)
2775                         return srb_status_info[i].str;
2776
2777         return "Bad Status Code";
2778 }
2779
2780 #endif