git.oblomov.eu 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 <asm/semaphore.h>
  35 #include <asm/uaccess.h>
  36 #include <linux/highmem.h> /* For flush_kernel_dcache_page */
  37
  38 #include <scsi/scsi.h>
  39 #include <scsi/scsi_cmnd.h>
  40 #include <scsi/scsi_device.h>
  41 #include <scsi/scsi_host.h>
  42
  43 #include "aacraid.h"
  44
  45 /* values for inqd_pdt: Peripheral device type in plain English */
  46 #define INQD_PDT_DA     0x00    /* Direct-access (DISK) device */
  47 #define INQD_PDT_PROC   0x03    /* Processor device */
  48 #define INQD_PDT_CHNGR  0x08    /* Changer (jukebox, scsi2) */
  49 #define INQD_PDT_COMM   0x09    /* Communication device (scsi2) */
  50 #define INQD_PDT_NOLUN2 0x1f    /* Unknown Device (scsi2) */
  51 #define INQD_PDT_NOLUN  0x7f    /* Logical Unit Not Present */
  52
  53 #define INQD_PDT_DMASK  0x1F    /* Peripheral Device Type Mask */
  54 #define INQD_PDT_QMASK  0xE0    /* Peripheral Device Qualifer Mask */
  55
  56 /*
  57  *      Sense codes
  58  */
  59
  60 #define SENCODE_NO_SENSE                        0x00
  61 #define SENCODE_END_OF_DATA                     0x00
  62 #define SENCODE_BECOMING_READY                  0x04
  63 #define SENCODE_INIT_CMD_REQUIRED               0x04
  64 #define SENCODE_PARAM_LIST_LENGTH_ERROR         0x1A
  65 #define SENCODE_INVALID_COMMAND                 0x20
  66 #define SENCODE_LBA_OUT_OF_RANGE                0x21
  67 #define SENCODE_INVALID_CDB_FIELD               0x24
  68 #define SENCODE_LUN_NOT_SUPPORTED               0x25
  69 #define SENCODE_INVALID_PARAM_FIELD             0x26
  70 #define SENCODE_PARAM_NOT_SUPPORTED             0x26
  71 #define SENCODE_PARAM_VALUE_INVALID             0x26
  72 #define SENCODE_RESET_OCCURRED                  0x29
  73 #define SENCODE_LUN_NOT_SELF_CONFIGURED_YET     0x3E
  74 #define SENCODE_INQUIRY_DATA_CHANGED            0x3F
  75 #define SENCODE_SAVING_PARAMS_NOT_SUPPORTED     0x39
  76 #define SENCODE_DIAGNOSTIC_FAILURE              0x40
  77 #define SENCODE_INTERNAL_TARGET_FAILURE         0x44
  78 #define SENCODE_INVALID_MESSAGE_ERROR           0x49
  79 #define SENCODE_LUN_FAILED_SELF_CONFIG          0x4c
  80 #define SENCODE_OVERLAPPED_COMMAND              0x4E
  81
  82 /*
  83  *      Additional sense codes
  84  */
  85
  86 #define ASENCODE_NO_SENSE                       0x00
  87 #define ASENCODE_END_OF_DATA                    0x05
  88 #define ASENCODE_BECOMING_READY                 0x01
  89 #define ASENCODE_INIT_CMD_REQUIRED              0x02
  90 #define ASENCODE_PARAM_LIST_LENGTH_ERROR        0x00
  91 #define ASENCODE_INVALID_COMMAND                0x00
  92 #define ASENCODE_LBA_OUT_OF_RANGE               0x00
  93 #define ASENCODE_INVALID_CDB_FIELD              0x00
  94 #define ASENCODE_LUN_NOT_SUPPORTED              0x00
  95 #define ASENCODE_INVALID_PARAM_FIELD            0x00
  96 #define ASENCODE_PARAM_NOT_SUPPORTED            0x01
  97 #define ASENCODE_PARAM_VALUE_INVALID            0x02
  98 #define ASENCODE_RESET_OCCURRED                 0x00
  99 #define ASENCODE_LUN_NOT_SELF_CONFIGURED_YET    0x00
 100 #define ASENCODE_INQUIRY_DATA_CHANGED           0x03
 101 #define ASENCODE_SAVING_PARAMS_NOT_SUPPORTED    0x00
 102 #define ASENCODE_DIAGNOSTIC_FAILURE             0x80
 103 #define ASENCODE_INTERNAL_TARGET_FAILURE        0x00
 104 #define ASENCODE_INVALID_MESSAGE_ERROR          0x00
 105 #define ASENCODE_LUN_FAILED_SELF_CONFIG         0x00
 106 #define ASENCODE_OVERLAPPED_COMMAND             0x00
 107
 108 #define BYTE0(x) (unsigned char)(x)
 109 #define BYTE1(x) (unsigned char)((x) >> 8)
 110 #define BYTE2(x) (unsigned char)((x) >> 16)
 111 #define BYTE3(x) (unsigned char)((x) >> 24)
 112
 113 /*------------------------------------------------------------------------------
 114  *              S T R U C T S / T Y P E D E F S
 115  *----------------------------------------------------------------------------*/
 116 /* SCSI inquiry data */
 117 struct inquiry_data {
 118         u8 inqd_pdt;    /* Peripheral qualifier | Peripheral Device Type */
 119         u8 inqd_dtq;    /* RMB | Device Type Qualifier */
 120         u8 inqd_ver;    /* ISO version | ECMA version | ANSI-approved version */
 121         u8 inqd_rdf;    /* AENC | TrmIOP | Response data format */
 122         u8 inqd_len;    /* Additional length (n-4) */
 123         u8 inqd_pad1[2];/* Reserved - must be zero */
 124         u8 inqd_pad2;   /* RelAdr | WBus32 | WBus16 |  Sync  | Linked |Reserved| CmdQue | SftRe */
 125         u8 inqd_vid[8]; /* Vendor ID */
 126         u8 inqd_pid[16];/* Product ID */
 127         u8 inqd_prl[4]; /* Product Revision Level */
 128 };
 129
 130 /*
 131  *              M O D U L E   G L O B A L S
 132  */
 133
 134 static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* sgmap);
 135 static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* psg);
 136 static unsigned long aac_build_sgraw(struct scsi_cmnd* scsicmd, struct sgmapraw* psg);
 137 static int aac_send_srb_fib(struct scsi_cmnd* scsicmd);
 138 #ifdef AAC_DETAILED_STATUS_INFO
 139 static char *aac_get_status_string(u32 status);
 140 #endif
 141
 142 /*
 143  *      Non dasd selection is handled entirely in aachba now
 144  */
 145
 146 static int nondasd = -1;
 147 static int aac_cache;
 148 static int dacmode = -1;
 149 int aac_msi;
 150 int aac_commit = -1;
 151 int startup_timeout = 180;
 152 int aif_timeout = 120;
 153
 154 module_param(nondasd, int, S_IRUGO|S_IWUSR);
 155 MODULE_PARM_DESC(nondasd, "Control scanning of hba for nondasd devices."
 156         " 0=off, 1=on");
 157 module_param_named(cache, aac_cache, int, S_IRUGO|S_IWUSR);
 158 MODULE_PARM_DESC(cache, "Disable Queue Flush commands:\n"
 159         "\tbit 0 - Disable FUA in WRITE SCSI commands\n"
 160         "\tbit 1 - Disable SYNCHRONIZE_CACHE SCSI command\n"
 161         "\tbit 2 - Disable only if Battery not protecting Cache");
 162 module_param(dacmode, int, S_IRUGO|S_IWUSR);
 163 MODULE_PARM_DESC(dacmode, "Control whether dma addressing is using 64 bit DAC."
 164         " 0=off, 1=on");
 165 module_param_named(commit, aac_commit, int, S_IRUGO|S_IWUSR);
 166 MODULE_PARM_DESC(commit, "Control whether a COMMIT_CONFIG is issued to the"
 167         " adapter for foreign arrays.\n"
 168         "This is typically needed in systems that do not have a BIOS."
 169         " 0=off, 1=on");
 170 module_param_named(msi, aac_msi, int, S_IRUGO|S_IWUSR);
 171 MODULE_PARM_DESC(msi, "IRQ handling."
 172         " 0=PIC(default), 1=MSI, 2=MSI-X(unsupported, uses MSI)");
 173 module_param(startup_timeout, int, S_IRUGO|S_IWUSR);
 174 MODULE_PARM_DESC(startup_timeout, "The duration of time in seconds to wait for"
 175         " adapter to have it's kernel up and\n"
 176         "running. This is typically adjusted for large systems that do not"
 177         " have a BIOS.");
 178 module_param(aif_timeout, int, S_IRUGO|S_IWUSR);
 179 MODULE_PARM_DESC(aif_timeout, "The duration of time in seconds to wait for"
 180         " applications to pick up AIFs before\n"
 181         "deregistering them. This is typically adjusted for heavily burdened"
 182         " systems.");
 183
 184 int numacb = -1;
 185 module_param(numacb, int, S_IRUGO|S_IWUSR);
 186 MODULE_PARM_DESC(numacb, "Request a limit to the number of adapter control"
 187         " blocks (FIB) allocated. Valid values are 512 and down. Default is"
 188         " to use suggestion from Firmware.");
 189
 190 int acbsize = -1;
 191 module_param(acbsize, int, S_IRUGO|S_IWUSR);
 192 MODULE_PARM_DESC(acbsize, "Request a specific adapter control block (FIB)"
 193         " size. Valid values are 512, 2048, 4096 and 8192. Default is to use"
 194         " suggestion from Firmware.");
 195
 196 int update_interval = 30 * 60;
 197 module_param(update_interval, int, S_IRUGO|S_IWUSR);
 198 MODULE_PARM_DESC(update_interval, "Interval in seconds between time sync"
 199         " updates issued to adapter.");
 200
 201 int check_interval = 24 * 60 * 60;
 202 module_param(check_interval, int, S_IRUGO|S_IWUSR);
 203 MODULE_PARM_DESC(check_interval, "Interval in seconds between adapter health"
 204         " checks.");
 205
 206 int aac_check_reset = 1;
 207 module_param_named(check_reset, aac_check_reset, int, S_IRUGO|S_IWUSR);
 208 MODULE_PARM_DESC(aac_check_reset, "If adapter fails health check, reset the"
 209         " adapter. a value of -1 forces the reset to adapters programmed to"
 210         " ignore it.");
 211
 212 int expose_physicals = -1;
 213 module_param(expose_physicals, int, S_IRUGO|S_IWUSR);
 214 MODULE_PARM_DESC(expose_physicals, "Expose physical components of the arrays."
 215         " -1=protect 0=off, 1=on");
 216
 217 int aac_reset_devices;
 218 module_param_named(reset_devices, aac_reset_devices, int, S_IRUGO|S_IWUSR);
 219 MODULE_PARM_DESC(reset_devices, "Force an adapter reset at initialization.");
 220
 221 static inline int aac_valid_context(struct scsi_cmnd *scsicmd,
 222                 struct fib *fibptr) {
 223         struct scsi_device *device;
 224
 225         if (unlikely(!scsicmd || !scsicmd->scsi_done)) {
 226                 dprintk((KERN_WARNING "aac_valid_context: scsi command corrupt\n"));
 227                 aac_fib_complete(fibptr);
 228                 aac_fib_free(fibptr);
 229                 return 0;
 230         }
 231         scsicmd->SCp.phase = AAC_OWNER_MIDLEVEL;
 232         device = scsicmd->device;
 233         if (unlikely(!device || !scsi_device_online(device))) {
 234                 dprintk((KERN_WARNING "aac_valid_context: scsi device corrupt\n"));
 235                 aac_fib_complete(fibptr);
 236                 aac_fib_free(fibptr);
 237                 return 0;
 238         }
 239         return 1;
 240 }
 241
 242 /**
 243  *      aac_get_config_status   -       check the adapter configuration
 244  *      @common: adapter to query
 245  *
 246  *      Query config status, and commit the configuration if needed.
 247  */
 248 int aac_get_config_status(struct aac_dev *dev, int commit_flag)
 249 {
 250         int status = 0;
 251         struct fib * fibptr;
 252
 253         if (!(fibptr = aac_fib_alloc(dev)))
 254                 return -ENOMEM;
 255
 256         aac_fib_init(fibptr);
 257         {
 258                 struct aac_get_config_status *dinfo;
 259                 dinfo = (struct aac_get_config_status *) fib_data(fibptr);
 260
 261                 dinfo->command = cpu_to_le32(VM_ContainerConfig);
 262                 dinfo->type = cpu_to_le32(CT_GET_CONFIG_STATUS);
 263                 dinfo->count = cpu_to_le32(sizeof(((struct aac_get_config_status_resp *)NULL)->data));
 264         }
 265
 266         status = aac_fib_send(ContainerCommand,
 267                             fibptr,
 268                             sizeof (struct aac_get_config_status),
 269                             FsaNormal,
 270                             1, 1,
 271                             NULL, NULL);
 272         if (status < 0) {
 273                 printk(KERN_WARNING "aac_get_config_status: SendFIB failed.\n");
 274         } else {
 275                 struct aac_get_config_status_resp *reply
 276                   = (struct aac_get_config_status_resp *) fib_data(fibptr);
 277                 dprintk((KERN_WARNING
 278                   "aac_get_config_status: response=%d status=%d action=%d\n",
 279                   le32_to_cpu(reply->response),
 280                   le32_to_cpu(reply->status),
 281                   le32_to_cpu(reply->data.action)));
 282                 if ((le32_to_cpu(reply->response) != ST_OK) ||
 283                      (le32_to_cpu(reply->status) != CT_OK) ||
 284                      (le32_to_cpu(reply->data.action) > CFACT_PAUSE)) {
 285                         printk(KERN_WARNING "aac_get_config_status: Will not issue the Commit Configuration\n");
 286                         status = -EINVAL;
 287                 }
 288         }
 289         aac_fib_complete(fibptr);
 290         /* Send a CT_COMMIT_CONFIG to enable discovery of devices */
 291         if (status >= 0) {
 292                 if ((aac_commit == 1) || commit_flag) {
 293                         struct aac_commit_config * dinfo;
 294                         aac_fib_init(fibptr);
 295                         dinfo = (struct aac_commit_config *) fib_data(fibptr);
 296
 297                         dinfo->command = cpu_to_le32(VM_ContainerConfig);
 298                         dinfo->type = cpu_to_le32(CT_COMMIT_CONFIG);
 299
 300                         status = aac_fib_send(ContainerCommand,
 301                                     fibptr,
 302                                     sizeof (struct aac_commit_config),
 303                                     FsaNormal,
 304                                     1, 1,
 305                                     NULL, NULL);
 306                         aac_fib_complete(fibptr);
 307                 } else if (aac_commit == 0) {
 308                         printk(KERN_WARNING
 309                           "aac_get_config_status: Foreign device configurations are being ignored\n");
 310                 }
 311         }
 312         aac_fib_free(fibptr);
 313         return status;
 314 }
 315
 316 /**
 317  *      aac_get_containers      -       list containers
 318  *      @common: adapter to probe
 319  *
 320  *      Make a list of all containers on this controller
 321  */
 322 int aac_get_containers(struct aac_dev *dev)
 323 {
 324         struct fsa_dev_info *fsa_dev_ptr;
 325         u32 index;
 326         int status = 0;
 327         struct fib * fibptr;
 328         struct aac_get_container_count *dinfo;
 329         struct aac_get_container_count_resp *dresp;
 330         int maximum_num_containers = MAXIMUM_NUM_CONTAINERS;
 331
 332         if (!(fibptr = aac_fib_alloc(dev)))
 333                 return -ENOMEM;
 334
 335         aac_fib_init(fibptr);
 336         dinfo = (struct aac_get_container_count *) fib_data(fibptr);
 337         dinfo->command = cpu_to_le32(VM_ContainerConfig);
 338         dinfo->type = cpu_to_le32(CT_GET_CONTAINER_COUNT);
 339
 340         status = aac_fib_send(ContainerCommand,
 341                     fibptr,
 342                     sizeof (struct aac_get_container_count),
 343                     FsaNormal,
 344                     1, 1,
 345                     NULL, NULL);
 346         if (status >= 0) {
 347                 dresp = (struct aac_get_container_count_resp *)fib_data(fibptr);
 348                 maximum_num_containers = le32_to_cpu(dresp->ContainerSwitchEntries);
 349                 aac_fib_complete(fibptr);
 350         }
 351         aac_fib_free(fibptr);
 352
 353         if (maximum_num_containers < MAXIMUM_NUM_CONTAINERS)
 354                 maximum_num_containers = MAXIMUM_NUM_CONTAINERS;
 355         fsa_dev_ptr = kzalloc(sizeof(*fsa_dev_ptr) * maximum_num_containers,
 356                         GFP_KERNEL);
 357         if (!fsa_dev_ptr)
 358                 return -ENOMEM;
 359
 360         dev->fsa_dev = fsa_dev_ptr;
 361         dev->maximum_num_containers = maximum_num_containers;
 362
 363         for (index = 0; index < dev->maximum_num_containers; ) {
 364                 fsa_dev_ptr[index].devname[0] = '\0';
 365
 366                 status = aac_probe_container(dev, index);
 367
 368                 if (status < 0) {
 369                         printk(KERN_WARNING "aac_get_containers: SendFIB failed.\n");
 370                         break;
 371                 }
 372
 373                 /*
 374                  *      If there are no more containers, then stop asking.
 375                  */
 376                 if (++index >= status)
 377                         break;
 378         }
 379         return status;
 380 }
 381
 382 static void aac_internal_transfer(struct scsi_cmnd *scsicmd, void *data, unsigned int offset, unsigned int len)
 383 {
 384         void *buf;
 385         int transfer_len;
 386         struct scatterlist *sg = scsi_sglist(scsicmd);
 387
 388         buf = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset;
 389         transfer_len = min(sg->length, len + offset);
 390
 391         transfer_len -= offset;
 392         if (buf && transfer_len > 0)
 393                 memcpy(buf + offset, data, transfer_len);
 394
 395         flush_kernel_dcache_page(kmap_atomic_to_page(buf - sg->offset));
 396         kunmap_atomic(buf - sg->offset, KM_IRQ0);
 397
 398 }
 399
 400 static void get_container_name_callback(void *context, struct fib * fibptr)
 401 {
 402         struct aac_get_name_resp * get_name_reply;
 403         struct scsi_cmnd * scsicmd;
 404
 405         scsicmd = (struct scsi_cmnd *) context;
 406
 407         if (!aac_valid_context(scsicmd, fibptr))
 408                 return;
 409
 410         dprintk((KERN_DEBUG "get_container_name_callback[cpu %d]: t = %ld.\n", smp_processor_id(), jiffies));
 411         BUG_ON(fibptr == NULL);
 412
 413         get_name_reply = (struct aac_get_name_resp *) fib_data(fibptr);
 414         /* Failure is irrelevant, using default value instead */
 415         if ((le32_to_cpu(get_name_reply->status) == CT_OK)
 416          && (get_name_reply->data[0] != '\0')) {
 417                 char *sp = get_name_reply->data;
 418                 sp[sizeof(((struct aac_get_name_resp *)NULL)->data)-1] = '\0';
 419                 while (*sp == ' ')
 420                         ++sp;
 421                 if (*sp) {
 422                         char d[sizeof(((struct inquiry_data *)NULL)->inqd_pid)];
 423                         int count = sizeof(d);
 424                         char *dp = d;
 425                         do {
 426                                 *dp++ = (*sp) ? *sp++ : ' ';
 427                         } while (--count > 0);
 428                         aac_internal_transfer(scsicmd, d,
 429                           offsetof(struct inquiry_data, inqd_pid), sizeof(d));
 430                 }
 431         }
 432
 433         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
 434
 435         aac_fib_complete(fibptr);
 436         aac_fib_free(fibptr);
 437         scsicmd->scsi_done(scsicmd);
 438 }
 439
 440 /**
 441  *      aac_get_container_name  -       get container name, none blocking.
 442  */
 443 static int aac_get_container_name(struct scsi_cmnd * scsicmd)
 444 {
 445         int status;
 446         struct aac_get_name *dinfo;
 447         struct fib * cmd_fibcontext;
 448         struct aac_dev * dev;
 449
 450         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
 451
 452         if (!(cmd_fibcontext = aac_fib_alloc(dev)))
 453                 return -ENOMEM;
 454
 455         aac_fib_init(cmd_fibcontext);
 456         dinfo = (struct aac_get_name *) fib_data(cmd_fibcontext);
 457
 458         dinfo->command = cpu_to_le32(VM_ContainerConfig);
 459         dinfo->type = cpu_to_le32(CT_READ_NAME);
 460         dinfo->cid = cpu_to_le32(scmd_id(scsicmd));
 461         dinfo->count = cpu_to_le32(sizeof(((struct aac_get_name_resp *)NULL)->data));
 462
 463         status = aac_fib_send(ContainerCommand,
 464                   cmd_fibcontext,
 465                   sizeof (struct aac_get_name),
 466                   FsaNormal,
 467                   0, 1,
 468                   (fib_callback)get_container_name_callback,
 469                   (void *) scsicmd);
 470
 471         /*
 472          *      Check that the command queued to the controller
 473          */
 474         if (status == -EINPROGRESS) {
 475                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
 476                 return 0;
 477         }
 478
 479         printk(KERN_WARNING "aac_get_container_name: aac_fib_send failed with status: %d.\n", status);
 480         aac_fib_complete(cmd_fibcontext);
 481         aac_fib_free(cmd_fibcontext);
 482         return -1;
 483 }
 484
 485 static int aac_probe_container_callback2(struct scsi_cmnd * scsicmd)
 486 {
 487         struct fsa_dev_info *fsa_dev_ptr = ((struct aac_dev *)(scsicmd->device->host->hostdata))->fsa_dev;
 488
 489         if ((fsa_dev_ptr[scmd_id(scsicmd)].valid & 1))
 490                 return aac_scsi_cmd(scsicmd);
 491
 492         scsicmd->result = DID_NO_CONNECT << 16;
 493         scsicmd->scsi_done(scsicmd);
 494         return 0;
 495 }
 496
 497 static void _aac_probe_container2(void * context, struct fib * fibptr)
 498 {
 499         struct fsa_dev_info *fsa_dev_ptr;
 500         int (*callback)(struct scsi_cmnd *);
 501         struct scsi_cmnd * scsicmd = (struct scsi_cmnd *)context;
 502
 503
 504         if (!aac_valid_context(scsicmd, fibptr))
 505                 return;
 506
 507         scsicmd->SCp.Status = 0;
 508         fsa_dev_ptr = fibptr->dev->fsa_dev;
 509         if (fsa_dev_ptr) {
 510                 struct aac_mount * dresp = (struct aac_mount *) fib_data(fibptr);
 511                 fsa_dev_ptr += scmd_id(scsicmd);
 512
 513                 if ((le32_to_cpu(dresp->status) == ST_OK) &&
 514                     (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE) &&
 515                     (le32_to_cpu(dresp->mnt[0].state) != FSCS_HIDDEN)) {
 516                         fsa_dev_ptr->valid = 1;
 517                         fsa_dev_ptr->type = le32_to_cpu(dresp->mnt[0].vol);
 518                         fsa_dev_ptr->size
 519                           = ((u64)le32_to_cpu(dresp->mnt[0].capacity)) +
 520                             (((u64)le32_to_cpu(dresp->mnt[0].capacityhigh)) << 32);
 521                         fsa_dev_ptr->ro = ((le32_to_cpu(dresp->mnt[0].state) & FSCS_READONLY) != 0);
 522                 }
 523                 if ((fsa_dev_ptr->valid & 1) == 0)
 524                         fsa_dev_ptr->valid = 0;
 525                 scsicmd->SCp.Status = le32_to_cpu(dresp->count);
 526         }
 527         aac_fib_complete(fibptr);
 528         aac_fib_free(fibptr);
 529         callback = (int (*)(struct scsi_cmnd *))(scsicmd->SCp.ptr);
 530         scsicmd->SCp.ptr = NULL;
 531         (*callback)(scsicmd);
 532         return;
 533 }
 534
 535 static void _aac_probe_container1(void * context, struct fib * fibptr)
 536 {
 537         struct scsi_cmnd * scsicmd;
 538         struct aac_mount * dresp;
 539         struct aac_query_mount *dinfo;
 540         int status;
 541
 542         dresp = (struct aac_mount *) fib_data(fibptr);
 543         dresp->mnt[0].capacityhigh = 0;
 544         if ((le32_to_cpu(dresp->status) != ST_OK) ||
 545             (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE)) {
 546                 _aac_probe_container2(context, fibptr);
 547                 return;
 548         }
 549         scsicmd = (struct scsi_cmnd *) context;
 550
 551         if (!aac_valid_context(scsicmd, fibptr))
 552                 return;
 553
 554         aac_fib_init(fibptr);
 555
 556         dinfo = (struct aac_query_mount *)fib_data(fibptr);
 557
 558         dinfo->command = cpu_to_le32(VM_NameServe64);
 559         dinfo->count = cpu_to_le32(scmd_id(scsicmd));
 560         dinfo->type = cpu_to_le32(FT_FILESYS);
 561
 562         status = aac_fib_send(ContainerCommand,
 563                           fibptr,
 564                           sizeof(struct aac_query_mount),
 565                           FsaNormal,
 566                           0, 1,
 567                           _aac_probe_container2,
 568                           (void *) scsicmd);
 569         /*
 570          *      Check that the command queued to the controller
 571          */
 572         if (status == -EINPROGRESS)
 573                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
 574         else if (status < 0) {
 575                 /* Inherit results from VM_NameServe, if any */
 576                 dresp->status = cpu_to_le32(ST_OK);
 577                 _aac_probe_container2(context, fibptr);
 578         }
 579 }
 580
 581 static int _aac_probe_container(struct scsi_cmnd * scsicmd, int (*callback)(struct scsi_cmnd *))
 582 {
 583         struct fib * fibptr;
 584         int status = -ENOMEM;
 585
 586         if ((fibptr = aac_fib_alloc((struct aac_dev *)scsicmd->device->host->hostdata))) {
 587                 struct aac_query_mount *dinfo;
 588
 589                 aac_fib_init(fibptr);
 590
 591                 dinfo = (struct aac_query_mount *)fib_data(fibptr);
 592
 593                 dinfo->command = cpu_to_le32(VM_NameServe);
 594                 dinfo->count = cpu_to_le32(scmd_id(scsicmd));
 595                 dinfo->type = cpu_to_le32(FT_FILESYS);
 596                 scsicmd->SCp.ptr = (char *)callback;
 597
 598                 status = aac_fib_send(ContainerCommand,
 599                           fibptr,
 600                           sizeof(struct aac_query_mount),
 601                           FsaNormal,
 602                           0, 1,
 603                           _aac_probe_container1,
 604                           (void *) scsicmd);
 605                 /*
 606                  *      Check that the command queued to the controller
 607                  */
 608                 if (status == -EINPROGRESS) {
 609                         scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
 610                         return 0;
 611                 }
 612                 if (status < 0) {
 613                         scsicmd->SCp.ptr = NULL;
 614                         aac_fib_complete(fibptr);
 615                         aac_fib_free(fibptr);
 616                 }
 617         }
 618         if (status < 0) {
 619                 struct fsa_dev_info *fsa_dev_ptr = ((struct aac_dev *)(scsicmd->device->host->hostdata))->fsa_dev;
 620                 if (fsa_dev_ptr) {
 621                         fsa_dev_ptr += scmd_id(scsicmd);
 622                         if ((fsa_dev_ptr->valid & 1) == 0) {
 623                                 fsa_dev_ptr->valid = 0;
 624                                 return (*callback)(scsicmd);
 625                         }
 626                 }
 627         }
 628         return status;
 629 }
 630
 631 /**
 632  *      aac_probe_container             -       query a logical volume
 633  *      @dev: device to query
 634  *      @cid: container identifier
 635  *
 636  *      Queries the controller about the given volume. The volume information
 637  *      is updated in the struct fsa_dev_info structure rather than returned.
 638  */
 639 static int aac_probe_container_callback1(struct scsi_cmnd * scsicmd)
 640 {
 641         scsicmd->device = NULL;
 642         return 0;
 643 }
 644
 645 int aac_probe_container(struct aac_dev *dev, int cid)
 646 {
 647         struct scsi_cmnd *scsicmd = kmalloc(sizeof(*scsicmd), GFP_KERNEL);
 648         struct scsi_device *scsidev = kmalloc(sizeof(*scsidev), GFP_KERNEL);
 649         int status;
 650
 651         if (!scsicmd || !scsidev) {
 652                 kfree(scsicmd);
 653                 kfree(scsidev);
 654                 return -ENOMEM;
 655         }
 656         scsicmd->list.next = NULL;
 657         scsicmd->scsi_done = (void (*)(struct scsi_cmnd*))aac_probe_container_callback1;
 658
 659         scsicmd->device = scsidev;
 660         scsidev->sdev_state = 0;
 661         scsidev->id = cid;
 662         scsidev->host = dev->scsi_host_ptr;
 663
 664         if (_aac_probe_container(scsicmd, aac_probe_container_callback1) == 0)
 665                 while (scsicmd->device == scsidev)
 666                         schedule();
 667         kfree(scsidev);
 668         status = scsicmd->SCp.Status;
 669         kfree(scsicmd);
 670         return status;
 671 }
 672
 673 /* Local Structure to set SCSI inquiry data strings */
 674 struct scsi_inq {
 675         char vid[8];         /* Vendor ID */
 676         char pid[16];        /* Product ID */
 677         char prl[4];         /* Product Revision Level */
 678 };
 679
 680 /**
 681  *      InqStrCopy      -       string merge
 682  *      @a:     string to copy from
 683  *      @b:     string to copy to
 684  *
 685  *      Copy a String from one location to another
 686  *      without copying \0
 687  */
 688
 689 static void inqstrcpy(char *a, char *b)
 690 {
 691
 692         while (*a != (char)0)
 693                 *b++ = *a++;
 694 }
 695
 696 static char *container_types[] = {
 697         "None",
 698         "Volume",
 699         "Mirror",
 700         "Stripe",
 701         "RAID5",
 702         "SSRW",
 703         "SSRO",
 704         "Morph",
 705         "Legacy",
 706         "RAID4",
 707         "RAID10",
 708         "RAID00",
 709         "V-MIRRORS",
 710         "PSEUDO R4",
 711         "RAID50",
 712         "RAID5D",
 713         "RAID5D0",
 714         "RAID1E",
 715         "RAID6",
 716         "RAID60",
 717         "Unknown"
 718 };
 719
 720 char * get_container_type(unsigned tindex)
 721 {
 722         if (tindex >= ARRAY_SIZE(container_types))
 723                 tindex = ARRAY_SIZE(container_types) - 1;
 724         return container_types[tindex];
 725 }
 726
 727 /* Function: setinqstr
 728  *
 729  * Arguments: [1] pointer to void [1] int
 730  *
 731  * Purpose: Sets SCSI inquiry data strings for vendor, product
 732  * and revision level. Allows strings to be set in platform dependant
 733  * files instead of in OS dependant driver source.
 734  */
 735
 736 static void setinqstr(struct aac_dev *dev, void *data, int tindex)
 737 {
 738         struct scsi_inq *str;
 739
 740         str = (struct scsi_inq *)(data); /* cast data to scsi inq block */
 741         memset(str, ' ', sizeof(*str));
 742
 743         if (dev->supplement_adapter_info.AdapterTypeText[0]) {
 744                 char * cp = dev->supplement_adapter_info.AdapterTypeText;
 745                 int c;
 746                 if ((cp[0] == 'A') && (cp[1] == 'O') && (cp[2] == 'C'))
 747                         inqstrcpy("SMC", str->vid);
 748                 else {
 749                         c = sizeof(str->vid);
 750                         while (*cp && *cp != ' ' && --c)
 751                                 ++cp;
 752                         c = *cp;
 753                         *cp = '\0';
 754                         inqstrcpy (dev->supplement_adapter_info.AdapterTypeText,
 755                                    str->vid);
 756                         *cp = c;
 757                         while (*cp && *cp != ' ')
 758                                 ++cp;
 759                 }
 760                 while (*cp == ' ')
 761                         ++cp;
 762                 /* last six chars reserved for vol type */
 763                 c = 0;
 764                 if (strlen(cp) > sizeof(str->pid)) {
 765                         c = cp[sizeof(str->pid)];
 766                         cp[sizeof(str->pid)] = '\0';
 767                 }
 768                 inqstrcpy (cp, str->pid);
 769                 if (c)
 770                         cp[sizeof(str->pid)] = c;
 771         } else {
 772                 struct aac_driver_ident *mp = aac_get_driver_ident(dev->cardtype);
 773
 774                 inqstrcpy (mp->vname, str->vid);
 775                 /* last six chars reserved for vol type */
 776                 inqstrcpy (mp->model, str->pid);
 777         }
 778
 779         if (tindex < ARRAY_SIZE(container_types)){
 780                 char *findit = str->pid;
 781
 782                 for ( ; *findit != ' '; findit++); /* walk till we find a space */
 783                 /* RAID is superfluous in the context of a RAID device */
 784                 if (memcmp(findit-4, "RAID", 4) == 0)
 785                         *(findit -= 4) = ' ';
 786                 if (((findit - str->pid) + strlen(container_types[tindex]))
 787                  < (sizeof(str->pid) + sizeof(str->prl)))
 788                         inqstrcpy (container_types[tindex], findit + 1);
 789         }
 790         inqstrcpy ("V1.0", str->prl);
 791 }
 792
 793 static void get_container_serial_callback(void *context, struct fib * fibptr)
 794 {
 795         struct aac_get_serial_resp * get_serial_reply;
 796         struct scsi_cmnd * scsicmd;
 797
 798         BUG_ON(fibptr == NULL);
 799
 800         scsicmd = (struct scsi_cmnd *) context;
 801         if (!aac_valid_context(scsicmd, fibptr))
 802                 return;
 803
 804         get_serial_reply = (struct aac_get_serial_resp *) fib_data(fibptr);
 805         /* Failure is irrelevant, using default value instead */
 806         if (le32_to_cpu(get_serial_reply->status) == CT_OK) {
 807                 char sp[13];
 808                 /* EVPD bit set */
 809                 sp[0] = INQD_PDT_DA;
 810                 sp[1] = scsicmd->cmnd[2];
 811                 sp[2] = 0;
 812                 sp[3] = snprintf(sp+4, sizeof(sp)-4, "%08X",
 813                   le32_to_cpu(get_serial_reply->uid));
 814                 aac_internal_transfer(scsicmd, sp, 0, sizeof(sp));
 815         }
 816
 817         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
 818
 819         aac_fib_complete(fibptr);
 820         aac_fib_free(fibptr);
 821         scsicmd->scsi_done(scsicmd);
 822 }
 823
 824 /**
 825  *      aac_get_container_serial - get container serial, none blocking.
 826  */
 827 static int aac_get_container_serial(struct scsi_cmnd * scsicmd)
 828 {
 829         int status;
 830         struct aac_get_serial *dinfo;
 831         struct fib * cmd_fibcontext;
 832         struct aac_dev * dev;
 833
 834         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
 835
 836         if (!(cmd_fibcontext = aac_fib_alloc(dev)))
 837                 return -ENOMEM;
 838
 839         aac_fib_init(cmd_fibcontext);
 840         dinfo = (struct aac_get_serial *) fib_data(cmd_fibcontext);
 841
 842         dinfo->command = cpu_to_le32(VM_ContainerConfig);
 843         dinfo->type = cpu_to_le32(CT_CID_TO_32BITS_UID);
 844         dinfo->cid = cpu_to_le32(scmd_id(scsicmd));
 845
 846         status = aac_fib_send(ContainerCommand,
 847                   cmd_fibcontext,
 848                   sizeof (struct aac_get_serial),
 849                   FsaNormal,
 850                   0, 1,
 851                   (fib_callback) get_container_serial_callback,
 852                   (void *) scsicmd);
 853
 854         /*
 855          *      Check that the command queued to the controller
 856          */
 857         if (status == -EINPROGRESS) {
 858                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
 859                 return 0;
 860         }
 861
 862         printk(KERN_WARNING "aac_get_container_serial: aac_fib_send failed with status: %d.\n", status);
 863         aac_fib_complete(cmd_fibcontext);
 864         aac_fib_free(cmd_fibcontext);
 865         return -1;
 866 }
 867
 868 /* Function: setinqserial
 869  *
 870  * Arguments: [1] pointer to void [1] int
 871  *
 872  * Purpose: Sets SCSI Unit Serial number.
 873  *          This is a fake. We should read a proper
 874  *          serial number from the container. <SuSE>But
 875  *          without docs it's quite hard to do it :-)
 876  *          So this will have to do in the meantime.</SuSE>
 877  */
 878
 879 static int setinqserial(struct aac_dev *dev, void *data, int cid)
 880 {
 881         /*
 882          *      This breaks array migration.
 883          */
 884         return snprintf((char *)(data), sizeof(struct scsi_inq) - 4, "%08X%02X",
 885                         le32_to_cpu(dev->adapter_info.serial[0]), cid);
 886 }
 887
 888 static inline void set_sense(struct sense_data *sense_data, u8 sense_key,
 889         u8 sense_code, u8 a_sense_code, u8 bit_pointer, u16 field_pointer)
 890 {
 891         u8 *sense_buf = (u8 *)sense_data;
 892         /* Sense data valid, err code 70h */
 893         sense_buf[0] = 0x70; /* No info field */
 894         sense_buf[1] = 0;       /* Segment number, always zero */
 895
 896         sense_buf[2] = sense_key;       /* Sense key */
 897
 898         sense_buf[12] = sense_code;     /* Additional sense code */
 899         sense_buf[13] = a_sense_code;   /* Additional sense code qualifier */
 900
 901         if (sense_key == ILLEGAL_REQUEST) {
 902                 sense_buf[7] = 10;      /* Additional sense length */
 903
 904                 sense_buf[15] = bit_pointer;
 905                 /* Illegal parameter is in the parameter block */
 906                 if (sense_code == SENCODE_INVALID_CDB_FIELD)
 907                         sense_buf[15] |= 0xc0;/* Std sense key specific field */
 908                 /* Illegal parameter is in the CDB block */
 909                 sense_buf[16] = field_pointer >> 8;     /* MSB */
 910                 sense_buf[17] = field_pointer;          /* LSB */
 911         } else
 912                 sense_buf[7] = 6;       /* Additional sense length */
 913 }
 914
 915 static int aac_bounds_32(struct aac_dev * dev, struct scsi_cmnd * cmd, u64 lba)
 916 {
 917         if (lba & 0xffffffff00000000LL) {
 918                 int cid = scmd_id(cmd);
 919                 dprintk((KERN_DEBUG "aacraid: Illegal lba\n"));
 920                 cmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 |
 921                         SAM_STAT_CHECK_CONDITION;
 922                 set_sense(&dev->fsa_dev[cid].sense_data,
 923                   HARDWARE_ERROR, SENCODE_INTERNAL_TARGET_FAILURE,
 924                   ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0);
 925                 memcpy(cmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
 926                        min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
 927                              SCSI_SENSE_BUFFERSIZE));
 928                 cmd->scsi_done(cmd);
 929                 return 1;
 930         }
 931         return 0;
 932 }
 933
 934 static int aac_bounds_64(struct aac_dev * dev, struct scsi_cmnd * cmd, u64 lba)
 935 {
 936         return 0;
 937 }
 938
 939 static void io_callback(void *context, struct fib * fibptr);
 940
 941 static int aac_read_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count)
 942 {
 943         u16 fibsize;
 944         struct aac_raw_io *readcmd;
 945         aac_fib_init(fib);
 946         readcmd = (struct aac_raw_io *) fib_data(fib);
 947         readcmd->block[0] = cpu_to_le32((u32)(lba&0xffffffff));
 948         readcmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
 949         readcmd->count = cpu_to_le32(count<<9);
 950         readcmd->cid = cpu_to_le16(scmd_id(cmd));
 951         readcmd->flags = cpu_to_le16(IO_TYPE_READ);
 952         readcmd->bpTotal = 0;
 953         readcmd->bpComplete = 0;
 954
 955         aac_build_sgraw(cmd, &readcmd->sg);
 956         fibsize = sizeof(struct aac_raw_io) + ((le32_to_cpu(readcmd->sg.count) - 1) * sizeof (struct sgentryraw));
 957         BUG_ON(fibsize > (fib->dev->max_fib_size - sizeof(struct aac_fibhdr)));
 958         /*
 959          *      Now send the Fib to the adapter
 960          */
 961         return aac_fib_send(ContainerRawIo,
 962                           fib,
 963                           fibsize,
 964                           FsaNormal,
 965                           0, 1,
 966                           (fib_callback) io_callback,
 967                           (void *) cmd);
 968 }
 969
 970 static int aac_read_block64(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count)
 971 {
 972         u16 fibsize;
 973         struct aac_read64 *readcmd;
 974         aac_fib_init(fib);
 975         readcmd = (struct aac_read64 *) fib_data(fib);
 976         readcmd->command = cpu_to_le32(VM_CtHostRead64);
 977         readcmd->cid = cpu_to_le16(scmd_id(cmd));
 978         readcmd->sector_count = cpu_to_le16(count);
 979         readcmd->block = cpu_to_le32((u32)(lba&0xffffffff));
 980         readcmd->pad   = 0;
 981         readcmd->flags = 0;
 982
 983         aac_build_sg64(cmd, &readcmd->sg);
 984         fibsize = sizeof(struct aac_read64) +
 985                 ((le32_to_cpu(readcmd->sg.count) - 1) *
 986                  sizeof (struct sgentry64));
 987         BUG_ON (fibsize > (fib->dev->max_fib_size -
 988                                 sizeof(struct aac_fibhdr)));
 989         /*
 990          *      Now send the Fib to the adapter
 991          */
 992         return aac_fib_send(ContainerCommand64,
 993                           fib,
 994                           fibsize,
 995                           FsaNormal,
 996                           0, 1,
 997                           (fib_callback) io_callback,
 998                           (void *) cmd);
 999 }
1000
1001 static int aac_read_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count)
1002 {
1003         u16 fibsize;
1004         struct aac_read *readcmd;
1005         aac_fib_init(fib);
1006         readcmd = (struct aac_read *) fib_data(fib);
1007         readcmd->command = cpu_to_le32(VM_CtBlockRead);
1008         readcmd->cid = cpu_to_le32(scmd_id(cmd));
1009         readcmd->block = cpu_to_le32((u32)(lba&0xffffffff));
1010         readcmd->count = cpu_to_le32(count * 512);
1011
1012         aac_build_sg(cmd, &readcmd->sg);
1013         fibsize = sizeof(struct aac_read) +
1014                         ((le32_to_cpu(readcmd->sg.count) - 1) *
1015                          sizeof (struct sgentry));
1016         BUG_ON (fibsize > (fib->dev->max_fib_size -
1017                                 sizeof(struct aac_fibhdr)));
1018         /*
1019          *      Now send the Fib to the adapter
1020          */
1021         return aac_fib_send(ContainerCommand,
1022                           fib,
1023                           fibsize,
1024                           FsaNormal,
1025                           0, 1,
1026                           (fib_callback) io_callback,
1027                           (void *) cmd);
1028 }
1029
1030 static int aac_write_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count, int fua)
1031 {
1032         u16 fibsize;
1033         struct aac_raw_io *writecmd;
1034         aac_fib_init(fib);
1035         writecmd = (struct aac_raw_io *) fib_data(fib);
1036         writecmd->block[0] = cpu_to_le32((u32)(lba&0xffffffff));
1037         writecmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
1038         writecmd->count = cpu_to_le32(count<<9);
1039         writecmd->cid = cpu_to_le16(scmd_id(cmd));
1040         writecmd->flags = (fua && ((aac_cache & 5) != 1) &&
1041           (((aac_cache & 5) != 5) || !fib->dev->cache_protected)) ?
1042                 cpu_to_le16(IO_TYPE_WRITE|IO_SUREWRITE) :
1043                 cpu_to_le16(IO_TYPE_WRITE);
1044         writecmd->bpTotal = 0;
1045         writecmd->bpComplete = 0;
1046
1047         aac_build_sgraw(cmd, &writecmd->sg);
1048         fibsize = sizeof(struct aac_raw_io) + ((le32_to_cpu(writecmd->sg.count) - 1) * sizeof (struct sgentryraw));
1049         BUG_ON(fibsize > (fib->dev->max_fib_size - sizeof(struct aac_fibhdr)));
1050         /*
1051          *      Now send the Fib to the adapter
1052          */
1053         return aac_fib_send(ContainerRawIo,
1054                           fib,
1055                           fibsize,
1056                           FsaNormal,
1057                           0, 1,
1058                           (fib_callback) io_callback,
1059                           (void *) cmd);
1060 }
1061
1062 static int aac_write_block64(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count, int fua)
1063 {
1064         u16 fibsize;
1065         struct aac_write64 *writecmd;
1066         aac_fib_init(fib);
1067         writecmd = (struct aac_write64 *) fib_data(fib);
1068         writecmd->command = cpu_to_le32(VM_CtHostWrite64);
1069         writecmd->cid = cpu_to_le16(scmd_id(cmd));
1070         writecmd->sector_count = cpu_to_le16(count);
1071         writecmd->block = cpu_to_le32((u32)(lba&0xffffffff));
1072         writecmd->pad   = 0;
1073         writecmd->flags = 0;
1074
1075         aac_build_sg64(cmd, &writecmd->sg);
1076         fibsize = sizeof(struct aac_write64) +
1077                 ((le32_to_cpu(writecmd->sg.count) - 1) *
1078                  sizeof (struct sgentry64));
1079         BUG_ON (fibsize > (fib->dev->max_fib_size -
1080                                 sizeof(struct aac_fibhdr)));
1081         /*
1082          *      Now send the Fib to the adapter
1083          */
1084         return aac_fib_send(ContainerCommand64,
1085                           fib,
1086                           fibsize,
1087                           FsaNormal,
1088                           0, 1,
1089                           (fib_callback) io_callback,
1090                           (void *) cmd);
1091 }
1092
1093 static int aac_write_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count, int fua)
1094 {
1095         u16 fibsize;
1096         struct aac_write *writecmd;
1097         aac_fib_init(fib);
1098         writecmd = (struct aac_write *) fib_data(fib);
1099         writecmd->command = cpu_to_le32(VM_CtBlockWrite);
1100         writecmd->cid = cpu_to_le32(scmd_id(cmd));
1101         writecmd->block = cpu_to_le32((u32)(lba&0xffffffff));
1102         writecmd->count = cpu_to_le32(count * 512);
1103         writecmd->sg.count = cpu_to_le32(1);
1104         /* ->stable is not used - it did mean which type of write */
1105
1106         aac_build_sg(cmd, &writecmd->sg);
1107         fibsize = sizeof(struct aac_write) +
1108                 ((le32_to_cpu(writecmd->sg.count) - 1) *
1109                  sizeof (struct sgentry));
1110         BUG_ON (fibsize > (fib->dev->max_fib_size -
1111                                 sizeof(struct aac_fibhdr)));
1112         /*
1113          *      Now send the Fib to the adapter
1114          */
1115         return aac_fib_send(ContainerCommand,
1116                           fib,
1117                           fibsize,
1118                           FsaNormal,
1119                           0, 1,
1120                           (fib_callback) io_callback,
1121                           (void *) cmd);
1122 }
1123
1124 static struct aac_srb * aac_scsi_common(struct fib * fib, struct scsi_cmnd * cmd)
1125 {
1126         struct aac_srb * srbcmd;
1127         u32 flag;
1128         u32 timeout;
1129
1130         aac_fib_init(fib);
1131         switch(cmd->sc_data_direction){
1132         case DMA_TO_DEVICE:
1133                 flag = SRB_DataOut;
1134                 break;
1135         case DMA_BIDIRECTIONAL:
1136                 flag = SRB_DataIn | SRB_DataOut;
1137                 break;
1138         case DMA_FROM_DEVICE:
1139                 flag = SRB_DataIn;
1140                 break;
1141         case DMA_NONE:
1142         default:        /* shuts up some versions of gcc */
1143                 flag = SRB_NoDataXfer;
1144                 break;
1145         }
1146
1147         srbcmd = (struct aac_srb*) fib_data(fib);
1148         srbcmd->function = cpu_to_le32(SRBF_ExecuteScsi);
1149         srbcmd->channel  = cpu_to_le32(aac_logical_to_phys(scmd_channel(cmd)));
1150         srbcmd->id       = cpu_to_le32(scmd_id(cmd));
1151         srbcmd->lun      = cpu_to_le32(cmd->device->lun);
1152         srbcmd->flags    = cpu_to_le32(flag);
1153         timeout = cmd->timeout_per_command/HZ;
1154         if (timeout == 0)
1155                 timeout = 1;
1156         srbcmd->timeout  = cpu_to_le32(timeout);  // timeout in seconds
1157         srbcmd->retry_limit = 0; /* Obsolete parameter */
1158         srbcmd->cdb_size = cpu_to_le32(cmd->cmd_len);
1159         return srbcmd;
1160 }
1161
1162 static void aac_srb_callback(void *context, struct fib * fibptr);
1163
1164 static int aac_scsi_64(struct fib * fib, struct scsi_cmnd * cmd)
1165 {
1166         u16 fibsize;
1167         struct aac_srb * srbcmd = aac_scsi_common(fib, cmd);
1168
1169         aac_build_sg64(cmd, (struct sgmap64*) &srbcmd->sg);
1170         srbcmd->count = cpu_to_le32(scsi_bufflen(cmd));
1171
1172         memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
1173         memcpy(srbcmd->cdb, cmd->cmnd, cmd->cmd_len);
1174         /*
1175          *      Build Scatter/Gather list
1176          */
1177         fibsize = sizeof (struct aac_srb) - sizeof (struct sgentry) +
1178                 ((le32_to_cpu(srbcmd->sg.count) & 0xff) *
1179                  sizeof (struct sgentry64));
1180         BUG_ON (fibsize > (fib->dev->max_fib_size -
1181                                 sizeof(struct aac_fibhdr)));
1182
1183         /*
1184          *      Now send the Fib to the adapter
1185          */
1186         return aac_fib_send(ScsiPortCommand64, fib,
1187                                 fibsize, FsaNormal, 0, 1,
1188                                   (fib_callback) aac_srb_callback,
1189                                   (void *) cmd);
1190 }
1191
1192 static int aac_scsi_32(struct fib * fib, struct scsi_cmnd * cmd)
1193 {
1194         u16 fibsize;
1195         struct aac_srb * srbcmd = aac_scsi_common(fib, cmd);
1196
1197         aac_build_sg(cmd, (struct sgmap*)&srbcmd->sg);
1198         srbcmd->count = cpu_to_le32(scsi_bufflen(cmd));
1199
1200         memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
1201         memcpy(srbcmd->cdb, cmd->cmnd, cmd->cmd_len);
1202         /*
1203          *      Build Scatter/Gather list
1204          */
1205         fibsize = sizeof (struct aac_srb) +
1206                 (((le32_to_cpu(srbcmd->sg.count) & 0xff) - 1) *
1207                  sizeof (struct sgentry));
1208         BUG_ON (fibsize > (fib->dev->max_fib_size -
1209                                 sizeof(struct aac_fibhdr)));
1210
1211         /*
1212          *      Now send the Fib to the adapter
1213          */
1214         return aac_fib_send(ScsiPortCommand, fib, fibsize, FsaNormal, 0, 1,
1215                                   (fib_callback) aac_srb_callback, (void *) cmd);
1216 }
1217
1218 static int aac_scsi_32_64(struct fib * fib, struct scsi_cmnd * cmd)
1219 {
1220         if ((sizeof(dma_addr_t) > 4) &&
1221          (num_physpages > (0xFFFFFFFFULL >> PAGE_SHIFT)) &&
1222          (fib->dev->adapter_info.options & AAC_OPT_SGMAP_HOST64))
1223                 return FAILED;
1224         return aac_scsi_32(fib, cmd);
1225 }
1226
1227 int aac_get_adapter_info(struct aac_dev* dev)
1228 {
1229         struct fib* fibptr;
1230         int rcode;
1231         u32 tmp;
1232         struct aac_adapter_info *info;
1233         struct aac_bus_info *command;
1234         struct aac_bus_info_response *bus_info;
1235
1236         if (!(fibptr = aac_fib_alloc(dev)))
1237                 return -ENOMEM;
1238
1239         aac_fib_init(fibptr);
1240         info = (struct aac_adapter_info *) fib_data(fibptr);
1241         memset(info,0,sizeof(*info));
1242
1243         rcode = aac_fib_send(RequestAdapterInfo,
1244                          fibptr,
1245                          sizeof(*info),
1246                          FsaNormal,
1247                          -1, 1, /* First `interrupt' command uses special wait */
1248                          NULL,
1249                          NULL);
1250
1251         if (rcode < 0) {
1252                 aac_fib_complete(fibptr);
1253                 aac_fib_free(fibptr);
1254                 return rcode;
1255         }
1256         memcpy(&dev->adapter_info, info, sizeof(*info));
1257
1258         if (dev->adapter_info.options & AAC_OPT_SUPPLEMENT_ADAPTER_INFO) {
1259                 struct aac_supplement_adapter_info * sinfo;
1260
1261                 aac_fib_init(fibptr);
1262
1263                 sinfo = (struct aac_supplement_adapter_info *) fib_data(fibptr);
1264
1265                 memset(sinfo,0,sizeof(*sinfo));
1266
1267                 rcode = aac_fib_send(RequestSupplementAdapterInfo,
1268                                  fibptr,
1269                                  sizeof(*sinfo),
1270                                  FsaNormal,
1271                                  1, 1,
1272                                  NULL,
1273                                  NULL);
1274
1275                 if (rcode >= 0)
1276                         memcpy(&dev->supplement_adapter_info, sinfo, sizeof(*sinfo));
1277         }
1278
1279
1280         /*
1281          * GetBusInfo
1282          */
1283
1284         aac_fib_init(fibptr);
1285
1286         bus_info = (struct aac_bus_info_response *) fib_data(fibptr);
1287
1288         memset(bus_info, 0, sizeof(*bus_info));
1289
1290         command = (struct aac_bus_info *)bus_info;
1291
1292         command->Command = cpu_to_le32(VM_Ioctl);
1293         command->ObjType = cpu_to_le32(FT_DRIVE);
1294         command->MethodId = cpu_to_le32(1);
1295         command->CtlCmd = cpu_to_le32(GetBusInfo);
1296
1297         rcode = aac_fib_send(ContainerCommand,
1298                          fibptr,
1299                          sizeof (*bus_info),
1300                          FsaNormal,
1301                          1, 1,
1302                          NULL, NULL);
1303
1304         /* reasoned default */
1305         dev->maximum_num_physicals = 16;
1306         if (rcode >= 0 && le32_to_cpu(bus_info->Status) == ST_OK) {
1307                 dev->maximum_num_physicals = le32_to_cpu(bus_info->TargetsPerBus);
1308                 dev->maximum_num_channels = le32_to_cpu(bus_info->BusCount);
1309         }
1310
1311         if (!dev->in_reset) {
1312                 char buffer[16];
1313                 tmp = le32_to_cpu(dev->adapter_info.kernelrev);
1314                 printk(KERN_INFO "%s%d: kernel %d.%d-%d[%d] %.*s\n",
1315                         dev->name,
1316                         dev->id,
1317                         tmp>>24,
1318                         (tmp>>16)&0xff,
1319                         tmp&0xff,
1320                         le32_to_cpu(dev->adapter_info.kernelbuild),
1321                         (int)sizeof(dev->supplement_adapter_info.BuildDate),
1322                         dev->supplement_adapter_info.BuildDate);
1323                 tmp = le32_to_cpu(dev->adapter_info.monitorrev);
1324                 printk(KERN_INFO "%s%d: monitor %d.%d-%d[%d]\n",
1325                         dev->name, dev->id,
1326                         tmp>>24,(tmp>>16)&0xff,tmp&0xff,
1327                         le32_to_cpu(dev->adapter_info.monitorbuild));
1328                 tmp = le32_to_cpu(dev->adapter_info.biosrev);
1329                 printk(KERN_INFO "%s%d: bios %d.%d-%d[%d]\n",
1330                         dev->name, dev->id,
1331                         tmp>>24,(tmp>>16)&0xff,tmp&0xff,
1332                         le32_to_cpu(dev->adapter_info.biosbuild));
1333                 buffer[0] = '\0';
1334                 if (aac_show_serial_number(
1335                   shost_to_class(dev->scsi_host_ptr), buffer))
1336                         printk(KERN_INFO "%s%d: serial %s",
1337                           dev->name, dev->id, buffer);
1338                 if (dev->supplement_adapter_info.VpdInfo.Tsid[0]) {
1339                         printk(KERN_INFO "%s%d: TSID %.*s\n",
1340                           dev->name, dev->id,
1341                           (int)sizeof(dev->supplement_adapter_info.VpdInfo.Tsid),
1342                           dev->supplement_adapter_info.VpdInfo.Tsid);
1343                 }
1344                 if (!aac_check_reset || ((aac_check_reset == 1) &&
1345                   (dev->supplement_adapter_info.SupportedOptions2 &
1346                   AAC_OPTION_IGNORE_RESET))) {
1347                         printk(KERN_INFO "%s%d: Reset Adapter Ignored\n",
1348                           dev->name, dev->id);
1349                 }
1350         }
1351
1352         dev->cache_protected = 0;
1353         dev->jbod = ((dev->supplement_adapter_info.FeatureBits &
1354                 AAC_FEATURE_JBOD) != 0);
1355         dev->nondasd_support = 0;
1356         dev->raid_scsi_mode = 0;
1357         if(dev->adapter_info.options & AAC_OPT_NONDASD)
1358                 dev->nondasd_support = 1;
1359
1360         /*
1361          * If the firmware supports ROMB RAID/SCSI mode and we are currently
1362          * in RAID/SCSI mode, set the flag. For now if in this mode we will
1363          * force nondasd support on. If we decide to allow the non-dasd flag
1364          * additional changes changes will have to be made to support
1365          * RAID/SCSI.  the function aac_scsi_cmd in this module will have to be
1366          * changed to support the new dev->raid_scsi_mode flag instead of
1367          * leaching off of the dev->nondasd_support flag. Also in linit.c the
1368          * function aac_detect will have to be modified where it sets up the
1369          * max number of channels based on the aac->nondasd_support flag only.
1370          */
1371         if ((dev->adapter_info.options & AAC_OPT_SCSI_MANAGED) &&
1372             (dev->adapter_info.options & AAC_OPT_RAID_SCSI_MODE)) {
1373                 dev->nondasd_support = 1;
1374                 dev->raid_scsi_mode = 1;
1375         }
1376         if (dev->raid_scsi_mode != 0)
1377                 printk(KERN_INFO "%s%d: ROMB RAID/SCSI mode enabled\n",
1378                                 dev->name, dev->id);
1379
1380         if (nondasd != -1)
1381                 dev->nondasd_support = (nondasd!=0);
1382         if (dev->nondasd_support && !dev->in_reset)
1383                 printk(KERN_INFO "%s%d: Non-DASD support enabled.\n",dev->name, dev->id);
1384
1385         dev->dac_support = 0;
1386         if( (sizeof(dma_addr_t) > 4) && (dev->adapter_info.options & AAC_OPT_SGMAP_HOST64)){
1387                 if (!dev->in_reset)
1388                         printk(KERN_INFO "%s%d: 64bit support enabled.\n",
1389                                 dev->name, dev->id);
1390                 dev->dac_support = 1;
1391         }
1392
1393         if(dacmode != -1) {
1394                 dev->dac_support = (dacmode!=0);
1395         }
1396         if(dev->dac_support != 0) {
1397                 if (!pci_set_dma_mask(dev->pdev, DMA_64BIT_MASK) &&
1398                         !pci_set_consistent_dma_mask(dev->pdev, DMA_64BIT_MASK)) {
1399                         if (!dev->in_reset)
1400                                 printk(KERN_INFO"%s%d: 64 Bit DAC enabled\n",
1401                                         dev->name, dev->id);
1402                 } else if (!pci_set_dma_mask(dev->pdev, DMA_32BIT_MASK) &&
1403                         !pci_set_consistent_dma_mask(dev->pdev, DMA_32BIT_MASK)) {
1404                         printk(KERN_INFO"%s%d: DMA mask set failed, 64 Bit DAC disabled\n",
1405                                 dev->name, dev->id);
1406                         dev->dac_support = 0;
1407                 } else {
1408                         printk(KERN_WARNING"%s%d: No suitable DMA available.\n",
1409                                 dev->name, dev->id);
1410                         rcode = -ENOMEM;
1411                 }
1412         }
1413         /*
1414          * Deal with configuring for the individualized limits of each packet
1415          * interface.
1416          */
1417         dev->a_ops.adapter_scsi = (dev->dac_support)
1418           ? ((aac_get_driver_ident(dev->cardtype)->quirks & AAC_QUIRK_SCSI_32)
1419                                 ? aac_scsi_32_64
1420                                 : aac_scsi_64)
1421                                 : aac_scsi_32;
1422         if (dev->raw_io_interface) {
1423                 dev->a_ops.adapter_bounds = (dev->raw_io_64)
1424                                         ? aac_bounds_64
1425                                         : aac_bounds_32;
1426                 dev->a_ops.adapter_read = aac_read_raw_io;
1427                 dev->a_ops.adapter_write = aac_write_raw_io;
1428         } else {
1429                 dev->a_ops.adapter_bounds = aac_bounds_32;
1430                 dev->scsi_host_ptr->sg_tablesize = (dev->max_fib_size -
1431                         sizeof(struct aac_fibhdr) -
1432                         sizeof(struct aac_write) + sizeof(struct sgentry)) /
1433                                 sizeof(struct sgentry);
1434                 if (dev->dac_support) {
1435                         dev->a_ops.adapter_read = aac_read_block64;
1436                         dev->a_ops.adapter_write = aac_write_block64;
1437                         /*
1438                          * 38 scatter gather elements
1439                          */
1440                         dev->scsi_host_ptr->sg_tablesize =
1441                                 (dev->max_fib_size -
1442                                 sizeof(struct aac_fibhdr) -
1443                                 sizeof(struct aac_write64) +
1444                                 sizeof(struct sgentry64)) /
1445                                         sizeof(struct sgentry64);
1446                 } else {
1447                         dev->a_ops.adapter_read = aac_read_block;
1448                         dev->a_ops.adapter_write = aac_write_block;
1449                 }
1450                 dev->scsi_host_ptr->max_sectors = AAC_MAX_32BIT_SGBCOUNT;
1451                 if(!(dev->adapter_info.options & AAC_OPT_NEW_COMM)) {
1452                         /*
1453                          * Worst case size that could cause sg overflow when
1454                          * we break up SG elements that are larger than 64KB.
1455                          * Would be nice if we could tell the SCSI layer what
1456                          * the maximum SG element size can be. Worst case is
1457                          * (sg_tablesize-1) 4KB elements with one 64KB
1458                          * element.
1459                          *      32bit -> 468 or 238KB   64bit -> 424 or 212KB
1460                          */
1461                         dev->scsi_host_ptr->max_sectors =
1462                           (dev->scsi_host_ptr->sg_tablesize * 8) + 112;
1463                 }
1464         }
1465
1466         aac_fib_complete(fibptr);
1467         aac_fib_free(fibptr);
1468
1469         return rcode;
1470 }
1471
1472
1473 static void io_callback(void *context, struct fib * fibptr)
1474 {
1475         struct aac_dev *dev;
1476         struct aac_read_reply *readreply;
1477         struct scsi_cmnd *scsicmd;
1478         u32 cid;
1479
1480         scsicmd = (struct scsi_cmnd *) context;
1481
1482         if (!aac_valid_context(scsicmd, fibptr))
1483                 return;
1484
1485         dev = fibptr->dev;
1486         cid = scmd_id(scsicmd);
1487
1488         if (nblank(dprintk(x))) {
1489                 u64 lba;
1490                 switch (scsicmd->cmnd[0]) {
1491                 case WRITE_6:
1492                 case READ_6:
1493                         lba = ((scsicmd->cmnd[1] & 0x1F) << 16) |
1494                             (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
1495                         break;
1496                 case WRITE_16:
1497                 case READ_16:
1498                         lba = ((u64)scsicmd->cmnd[2] << 56) |
1499                               ((u64)scsicmd->cmnd[3] << 48) |
1500                               ((u64)scsicmd->cmnd[4] << 40) |
1501                               ((u64)scsicmd->cmnd[5] << 32) |
1502                               ((u64)scsicmd->cmnd[6] << 24) |
1503                               (scsicmd->cmnd[7] << 16) |
1504                               (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1505                         break;
1506                 case WRITE_12:
1507                 case READ_12:
1508                         lba = ((u64)scsicmd->cmnd[2] << 24) |
1509                               (scsicmd->cmnd[3] << 16) |
1510                               (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1511                         break;
1512                 default:
1513                         lba = ((u64)scsicmd->cmnd[2] << 24) |
1514                                (scsicmd->cmnd[3] << 16) |
1515                                (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1516                         break;
1517                 }
1518                 printk(KERN_DEBUG
1519                   "io_callback[cpu %d]: lba = %llu, t = %ld.\n",
1520                   smp_processor_id(), (unsigned long long)lba, jiffies);
1521         }
1522
1523         BUG_ON(fibptr == NULL);
1524
1525         scsi_dma_unmap(scsicmd);
1526
1527         readreply = (struct aac_read_reply *)fib_data(fibptr);
1528         if (le32_to_cpu(readreply->status) == ST_OK)
1529                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1530         else {
1531 #ifdef AAC_DETAILED_STATUS_INFO
1532                 printk(KERN_WARNING "io_callback: io failed, status = %d\n",
1533                   le32_to_cpu(readreply->status));
1534 #endif
1535                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1536                 set_sense(&dev->fsa_dev[cid].sense_data,
1537                   HARDWARE_ERROR, SENCODE_INTERNAL_TARGET_FAILURE,
1538                   ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0);
1539                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1540                        min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
1541                              SCSI_SENSE_BUFFERSIZE));
1542         }
1543         aac_fib_complete(fibptr);
1544         aac_fib_free(fibptr);
1545
1546         scsicmd->scsi_done(scsicmd);
1547 }
1548
1549 static int aac_read(struct scsi_cmnd * scsicmd)
1550 {
1551         u64 lba;
1552         u32 count;
1553         int status;
1554         struct aac_dev *dev;
1555         struct fib * cmd_fibcontext;
1556
1557         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1558         /*
1559          *      Get block address and transfer length
1560          */
1561         switch (scsicmd->cmnd[0]) {
1562         case READ_6:
1563                 dprintk((KERN_DEBUG "aachba: received a read(6) command on id %d.\n", scmd_id(scsicmd)));
1564
1565                 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) |
1566                         (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
1567                 count = scsicmd->cmnd[4];
1568
1569                 if (count == 0)
1570                         count = 256;
1571                 break;
1572         case READ_16:
1573                 dprintk((KERN_DEBUG "aachba: received a read(16) command on id %d.\n", scmd_id(scsicmd)));
1574
1575                 lba =   ((u64)scsicmd->cmnd[2] << 56) |
1576                         ((u64)scsicmd->cmnd[3] << 48) |
1577                         ((u64)scsicmd->cmnd[4] << 40) |
1578                         ((u64)scsicmd->cmnd[5] << 32) |
1579                         ((u64)scsicmd->cmnd[6] << 24) |
1580                         (scsicmd->cmnd[7] << 16) |
1581                         (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1582                 count = (scsicmd->cmnd[10] << 24) |
1583                         (scsicmd->cmnd[11] << 16) |
1584                         (scsicmd->cmnd[12] << 8) | scsicmd->cmnd[13];
1585                 break;
1586         case READ_12:
1587                 dprintk((KERN_DEBUG "aachba: received a read(12) command on id %d.\n", scmd_id(scsicmd)));
1588
1589                 lba = ((u64)scsicmd->cmnd[2] << 24) |
1590                         (scsicmd->cmnd[3] << 16) |
1591                         (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1592                 count = (scsicmd->cmnd[6] << 24) |
1593                         (scsicmd->cmnd[7] << 16) |
1594                         (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1595                 break;
1596         default:
1597                 dprintk((KERN_DEBUG "aachba: received a read(10) command on id %d.\n", scmd_id(scsicmd)));
1598
1599                 lba = ((u64)scsicmd->cmnd[2] << 24) |
1600                         (scsicmd->cmnd[3] << 16) |
1601                         (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1602                 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
1603                 break;
1604         }
1605         dprintk((KERN_DEBUG "aac_read[cpu %d]: lba = %llu, t = %ld.\n",
1606           smp_processor_id(), (unsigned long long)lba, jiffies));
1607         if (aac_adapter_bounds(dev,scsicmd,lba))
1608                 return 0;
1609         /*
1610          *      Alocate and initialize a Fib
1611          */
1612         if (!(cmd_fibcontext = aac_fib_alloc(dev))) {
1613                 return -1;
1614         }
1615
1616         status = aac_adapter_read(cmd_fibcontext, scsicmd, lba, count);
1617
1618         /*
1619          *      Check that the command queued to the controller
1620          */
1621         if (status == -EINPROGRESS) {
1622                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
1623                 return 0;
1624         }
1625
1626         printk(KERN_WARNING "aac_read: aac_fib_send failed with status: %d.\n", status);
1627         /*
1628          *      For some reason, the Fib didn't queue, return QUEUE_FULL
1629          */
1630         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_TASK_SET_FULL;
1631         scsicmd->scsi_done(scsicmd);
1632         aac_fib_complete(cmd_fibcontext);
1633         aac_fib_free(cmd_fibcontext);
1634         return 0;
1635 }
1636
1637 static int aac_write(struct scsi_cmnd * scsicmd)
1638 {
1639         u64 lba;
1640         u32 count;
1641         int fua;
1642         int status;
1643         struct aac_dev *dev;
1644         struct fib * cmd_fibcontext;
1645
1646         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1647         /*
1648          *      Get block address and transfer length
1649          */
1650         if (scsicmd->cmnd[0] == WRITE_6)        /* 6 byte command */
1651         {
1652                 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
1653                 count = scsicmd->cmnd[4];
1654                 if (count == 0)
1655                         count = 256;
1656                 fua = 0;
1657         } else if (scsicmd->cmnd[0] == WRITE_16) { /* 16 byte command */
1658                 dprintk((KERN_DEBUG "aachba: received a write(16) command on id %d.\n", scmd_id(scsicmd)));
1659
1660                 lba =   ((u64)scsicmd->cmnd[2] << 56) |
1661                         ((u64)scsicmd->cmnd[3] << 48) |
1662                         ((u64)scsicmd->cmnd[4] << 40) |
1663                         ((u64)scsicmd->cmnd[5] << 32) |
1664                         ((u64)scsicmd->cmnd[6] << 24) |
1665                         (scsicmd->cmnd[7] << 16) |
1666                         (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1667                 count = (scsicmd->cmnd[10] << 24) | (scsicmd->cmnd[11] << 16) |
1668                         (scsicmd->cmnd[12] << 8) | scsicmd->cmnd[13];
1669                 fua = scsicmd->cmnd[1] & 0x8;
1670         } else if (scsicmd->cmnd[0] == WRITE_12) { /* 12 byte command */
1671                 dprintk((KERN_DEBUG "aachba: received a write(12) command on id %d.\n", scmd_id(scsicmd)));
1672
1673                 lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16)
1674                     | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1675                 count = (scsicmd->cmnd[6] << 24) | (scsicmd->cmnd[7] << 16)
1676                       | (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1677                 fua = scsicmd->cmnd[1] & 0x8;
1678         } else {
1679                 dprintk((KERN_DEBUG "aachba: received a write(10) command on id %d.\n", scmd_id(scsicmd)));
1680                 lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1681                 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
1682                 fua = scsicmd->cmnd[1] & 0x8;
1683         }
1684         dprintk((KERN_DEBUG "aac_write[cpu %d]: lba = %llu, t = %ld.\n",
1685           smp_processor_id(), (unsigned long long)lba, jiffies));
1686         if (aac_adapter_bounds(dev,scsicmd,lba))
1687                 return 0;
1688         /*
1689          *      Allocate and initialize a Fib then setup a BlockWrite command
1690          */
1691         if (!(cmd_fibcontext = aac_fib_alloc(dev))) {
1692                 scsicmd->result = DID_ERROR << 16;
1693                 scsicmd->scsi_done(scsicmd);
1694                 return 0;
1695         }
1696
1697         status = aac_adapter_write(cmd_fibcontext, scsicmd, lba, count, fua);
1698
1699         /*
1700          *      Check that the command queued to the controller
1701          */
1702         if (status == -EINPROGRESS) {
1703                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
1704                 return 0;
1705         }
1706
1707         printk(KERN_WARNING "aac_write: aac_fib_send failed with status: %d\n", status);
1708         /*
1709          *      For some reason, the Fib didn't queue, return QUEUE_FULL
1710          */
1711         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_TASK_SET_FULL;
1712         scsicmd->scsi_done(scsicmd);
1713
1714         aac_fib_complete(cmd_fibcontext);
1715         aac_fib_free(cmd_fibcontext);
1716         return 0;
1717 }
1718
1719 static void synchronize_callback(void *context, struct fib *fibptr)
1720 {
1721         struct aac_synchronize_reply *synchronizereply;
1722         struct scsi_cmnd *cmd;
1723
1724         cmd = context;
1725
1726         if (!aac_valid_context(cmd, fibptr))
1727                 return;
1728
1729         dprintk((KERN_DEBUG "synchronize_callback[cpu %d]: t = %ld.\n",
1730                                 smp_processor_id(), jiffies));
1731         BUG_ON(fibptr == NULL);
1732
1733
1734         synchronizereply = fib_data(fibptr);
1735         if (le32_to_cpu(synchronizereply->status) == CT_OK)
1736                 cmd->result = DID_OK << 16 |
1737                         COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1738         else {
1739                 struct scsi_device *sdev = cmd->device;
1740                 struct aac_dev *dev = fibptr->dev;
1741                 u32 cid = sdev_id(sdev);
1742                 printk(KERN_WARNING
1743                      "synchronize_callback: synchronize failed, status = %d\n",
1744                      le32_to_cpu(synchronizereply->status));
1745                 cmd->result = DID_OK << 16 |
1746                         COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1747                 set_sense(&dev->fsa_dev[cid].sense_data,
1748                   HARDWARE_ERROR, SENCODE_INTERNAL_TARGET_FAILURE,
1749                   ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0);
1750                 memcpy(cmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1751                        min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
1752                              SCSI_SENSE_BUFFERSIZE));
1753         }
1754
1755         aac_fib_complete(fibptr);
1756         aac_fib_free(fibptr);
1757         cmd->scsi_done(cmd);
1758 }
1759
1760 static int aac_synchronize(struct scsi_cmnd *scsicmd)
1761 {
1762         int status;
1763         struct fib *cmd_fibcontext;
1764         struct aac_synchronize *synchronizecmd;
1765         struct scsi_cmnd *cmd;
1766         struct scsi_device *sdev = scsicmd->device;
1767         int active = 0;
1768         struct aac_dev *aac;
1769         u64 lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) |
1770                 (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1771         u32 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
1772         unsigned long flags;
1773
1774         /*
1775          * Wait for all outstanding queued commands to complete to this
1776          * specific target (block).
1777          */
1778         spin_lock_irqsave(&sdev->list_lock, flags);
1779         list_for_each_entry(cmd, &sdev->cmd_list, list)
1780                 if (cmd->SCp.phase == AAC_OWNER_FIRMWARE) {
1781                         u64 cmnd_lba;
1782                         u32 cmnd_count;
1783
1784                         if (cmd->cmnd[0] == WRITE_6) {
1785                                 cmnd_lba = ((cmd->cmnd[1] & 0x1F) << 16) |
1786                                         (cmd->cmnd[2] << 8) |
1787                                         cmd->cmnd[3];
1788                                 cmnd_count = cmd->cmnd[4];
1789                                 if (cmnd_count == 0)
1790                                         cmnd_count = 256;
1791                         } else if (cmd->cmnd[0] == WRITE_16) {
1792                                 cmnd_lba = ((u64)cmd->cmnd[2] << 56) |
1793                                         ((u64)cmd->cmnd[3] << 48) |
1794                                         ((u64)cmd->cmnd[4] << 40) |
1795                                         ((u64)cmd->cmnd[5] << 32) |
1796                                         ((u64)cmd->cmnd[6] << 24) |
1797                                         (cmd->cmnd[7] << 16) |
1798                                         (cmd->cmnd[8] << 8) |
1799                                         cmd->cmnd[9];
1800                                 cmnd_count = (cmd->cmnd[10] << 24) |
1801                                         (cmd->cmnd[11] << 16) |
1802                                         (cmd->cmnd[12] << 8) |
1803                                         cmd->cmnd[13];
1804                         } else if (cmd->cmnd[0] == WRITE_12) {
1805                                 cmnd_lba = ((u64)cmd->cmnd[2] << 24) |
1806                                         (cmd->cmnd[3] << 16) |
1807                                         (cmd->cmnd[4] << 8) |
1808                                         cmd->cmnd[5];
1809                                 cmnd_count = (cmd->cmnd[6] << 24) |
1810                                         (cmd->cmnd[7] << 16) |
1811                                         (cmd->cmnd[8] << 8) |
1812                                         cmd->cmnd[9];
1813                         } else if (cmd->cmnd[0] == WRITE_10) {
1814                                 cmnd_lba = ((u64)cmd->cmnd[2] << 24) |
1815                                         (cmd->cmnd[3] << 16) |
1816                                         (cmd->cmnd[4] << 8) |
1817                                         cmd->cmnd[5];
1818                                 cmnd_count = (cmd->cmnd[7] << 8) |
1819                                         cmd->cmnd[8];
1820                         } else
1821                                 continue;
1822                         if (((cmnd_lba + cmnd_count) < lba) ||
1823                           (count && ((lba + count) < cmnd_lba)))
1824                                 continue;
1825                         ++active;
1826                         break;
1827                 }
1828
1829         spin_unlock_irqrestore(&sdev->list_lock, flags);
1830
1831         /*
1832          *      Yield the processor (requeue for later)
1833          */
1834         if (active)
1835                 return SCSI_MLQUEUE_DEVICE_BUSY;
1836
1837         aac = (struct aac_dev *)sdev->host->hostdata;
1838         if (aac->in_reset)
1839                 return SCSI_MLQUEUE_HOST_BUSY;
1840
1841         /*
1842          *      Allocate and initialize a Fib
1843          */
1844         if (!(cmd_fibcontext = aac_fib_alloc(aac)))
1845                 return SCSI_MLQUEUE_HOST_BUSY;
1846
1847         aac_fib_init(cmd_fibcontext);
1848
1849         synchronizecmd = fib_data(cmd_fibcontext);
1850         synchronizecmd->command = cpu_to_le32(VM_ContainerConfig);
1851         synchronizecmd->type = cpu_to_le32(CT_FLUSH_CACHE);
1852         synchronizecmd->cid = cpu_to_le32(scmd_id(scsicmd));
1853         synchronizecmd->count =
1854              cpu_to_le32(sizeof(((struct aac_synchronize_reply *)NULL)->data));
1855
1856         /*
1857          *      Now send the Fib to the adapter
1858          */
1859         status = aac_fib_send(ContainerCommand,
1860                   cmd_fibcontext,
1861                   sizeof(struct aac_synchronize),
1862                   FsaNormal,
1863                   0, 1,
1864                   (fib_callback)synchronize_callback,
1865                   (void *)scsicmd);
1866
1867         /*
1868          *      Check that the command queued to the controller
1869          */
1870         if (status == -EINPROGRESS) {
1871                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
1872                 return 0;
1873         }
1874
1875         printk(KERN_WARNING
1876                 "aac_synchronize: aac_fib_send failed with status: %d.\n", status);
1877         aac_fib_complete(cmd_fibcontext);
1878         aac_fib_free(cmd_fibcontext);
1879         return SCSI_MLQUEUE_HOST_BUSY;
1880 }
1881
1882 /**
1883  *      aac_scsi_cmd()          -       Process SCSI command
1884  *      @scsicmd:               SCSI command block
1885  *
1886  *      Emulate a SCSI command and queue the required request for the
1887  *      aacraid firmware.
1888  */
1889
1890 int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
1891 {
1892         u32 cid;
1893         struct Scsi_Host *host = scsicmd->device->host;
1894         struct aac_dev *dev = (struct aac_dev *)host->hostdata;
1895         struct fsa_dev_info *fsa_dev_ptr = dev->fsa_dev;
1896
1897         if (fsa_dev_ptr == NULL)
1898                 return -1;
1899         /*
1900          *      If the bus, id or lun is out of range, return fail
1901          *      Test does not apply to ID 16, the pseudo id for the controller
1902          *      itself.
1903          */
1904         cid = scmd_id(scsicmd);
1905         if (cid != host->this_id) {
1906                 if (scmd_channel(scsicmd) == CONTAINER_CHANNEL) {
1907                         if((cid >= dev->maximum_num_containers) ||
1908                                         (scsicmd->device->lun != 0)) {
1909                                 scsicmd->result = DID_NO_CONNECT << 16;
1910                                 scsicmd->scsi_done(scsicmd);
1911                                 return 0;
1912                         }
1913
1914                         /*
1915                          *      If the target container doesn't exist, it may have
1916                          *      been newly created
1917                          */
1918                         if ((fsa_dev_ptr[cid].valid & 1) == 0) {
1919                                 switch (scsicmd->cmnd[0]) {
1920                                 case SERVICE_ACTION_IN:
1921                                         if (!(dev->raw_io_interface) ||
1922                                             !(dev->raw_io_64) ||
1923                                             ((scsicmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16))
1924                                                 break;
1925                                 case INQUIRY:
1926                                 case READ_CAPACITY:
1927                                 case TEST_UNIT_READY:
1928                                         if (dev->in_reset)
1929                                                 return -1;
1930                                         return _aac_probe_container(scsicmd,
1931                                                         aac_probe_container_callback2);
1932                                 default:
1933                                         break;
1934                                 }
1935                         }
1936                 } else {  /* check for physical non-dasd devices */
1937                         if (dev->nondasd_support || expose_physicals ||
1938                                         dev->jbod) {
1939                                 if (dev->in_reset)
1940                                         return -1;
1941                                 return aac_send_srb_fib(scsicmd);
1942                         } else {
1943                                 scsicmd->result = DID_NO_CONNECT << 16;
1944                                 scsicmd->scsi_done(scsicmd);
1945                                 return 0;
1946                         }
1947                 }
1948         }
1949         /*
1950          * else Command for the controller itself
1951          */
1952         else if ((scsicmd->cmnd[0] != INQUIRY) &&       /* only INQUIRY & TUR cmnd supported for controller */
1953                 (scsicmd->cmnd[0] != TEST_UNIT_READY))
1954         {
1955                 dprintk((KERN_WARNING "Only INQUIRY & TUR command supported for controller, rcvd = 0x%x.\n", scsicmd->cmnd[0]));
1956                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1957                 set_sense(&dev->fsa_dev[cid].sense_data,
1958                   ILLEGAL_REQUEST, SENCODE_INVALID_COMMAND,
1959                   ASENCODE_INVALID_COMMAND, 0, 0);
1960                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1961                        min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
1962                              SCSI_SENSE_BUFFERSIZE));
1963                 scsicmd->scsi_done(scsicmd);
1964                 return 0;
1965         }
1966
1967
1968         /* Handle commands here that don't really require going out to the adapter */
1969         switch (scsicmd->cmnd[0]) {
1970         case INQUIRY:
1971         {
1972                 struct inquiry_data inq_data;
1973
1974                 dprintk((KERN_DEBUG "INQUIRY command, ID: %d.\n", cid));
1975                 memset(&inq_data, 0, sizeof (struct inquiry_data));
1976
1977                 if (scsicmd->cmnd[1] & 0x1) {
1978                         char *arr = (char *)&inq_data;
1979
1980                         /* EVPD bit set */
1981                         arr[0] = (scmd_id(scsicmd) == host->this_id) ?
1982                           INQD_PDT_PROC : INQD_PDT_DA;
1983                         if (scsicmd->cmnd[2] == 0) {
1984                                 /* supported vital product data pages */
1985                                 arr[3] = 2;
1986                                 arr[4] = 0x0;
1987                                 arr[5] = 0x80;
1988                                 arr[1] = scsicmd->cmnd[2];
1989                                 aac_internal_transfer(scsicmd, &inq_data, 0,
1990                                   sizeof(inq_data));
1991                                 scsicmd->result = DID_OK << 16 |
1992                                   COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1993                         } else if (scsicmd->cmnd[2] == 0x80) {
1994                                 /* unit serial number page */
1995                                 arr[3] = setinqserial(dev, &arr[4],
1996                                   scmd_id(scsicmd));
1997                                 arr[1] = scsicmd->cmnd[2];
1998                                 aac_internal_transfer(scsicmd, &inq_data, 0,
1999                                   sizeof(inq_data));
2000                                 return aac_get_container_serial(scsicmd);
2001                         } else {
2002                                 /* vpd page not implemented */
2003                                 scsicmd->result = DID_OK << 16 |
2004                                   COMMAND_COMPLETE << 8 |
2005                                   SAM_STAT_CHECK_CONDITION;
2006                                 set_sense(&dev->fsa_dev[cid].sense_data,
2007                                   ILLEGAL_REQUEST, SENCODE_INVALID_CDB_FIELD,
2008                                   ASENCODE_NO_SENSE, 7, 2);
2009                                 memcpy(scsicmd->sense_buffer,
2010                                   &dev->fsa_dev[cid].sense_data,
2011                                   min_t(size_t,
2012                                         sizeof(dev->fsa_dev[cid].sense_data),
2013                                         SCSI_SENSE_BUFFERSIZE));
2014                         }
2015                         scsicmd->scsi_done(scsicmd);
2016                         return 0;
2017                 }
2018                 inq_data.inqd_ver = 2;  /* claim compliance to SCSI-2 */
2019                 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 */
2020                 inq_data.inqd_len = 31;
2021                 /*Format for "pad2" is  RelAdr | WBus32 | WBus16 |  Sync  | Linked |Reserved| CmdQue | SftRe */
2022                 inq_data.inqd_pad2= 0x32 ;       /*WBus16|Sync|CmdQue */
2023                 /*
2024                  *      Set the Vendor, Product, and Revision Level
2025                  *      see: <vendor>.c i.e. aac.c
2026                  */
2027                 if (cid == host->this_id) {
2028                         setinqstr(dev, (void *) (inq_data.inqd_vid), ARRAY_SIZE(container_types));
2029                         inq_data.inqd_pdt = INQD_PDT_PROC;      /* Processor device */
2030                         aac_internal_transfer(scsicmd, &inq_data, 0, sizeof(inq_data));
2031                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2032                         scsicmd->scsi_done(scsicmd);
2033                         return 0;
2034                 }
2035                 if (dev->in_reset)
2036                         return -1;
2037                 setinqstr(dev, (void *) (inq_data.inqd_vid), fsa_dev_ptr[cid].type);
2038                 inq_data.inqd_pdt = INQD_PDT_DA;        /* Direct/random access device */
2039                 aac_internal_transfer(scsicmd, &inq_data, 0, sizeof(inq_data));
2040                 return aac_get_container_name(scsicmd);
2041         }
2042         case SERVICE_ACTION_IN:
2043                 if (!(dev->raw_io_interface) ||
2044                     !(dev->raw_io_64) ||
2045                     ((scsicmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16))
2046                         break;
2047         {
2048                 u64 capacity;
2049                 char cp[13];
2050
2051                 dprintk((KERN_DEBUG "READ CAPACITY_16 command.\n"));
2052                 capacity = fsa_dev_ptr[cid].size - 1;
2053                 cp[0] = (capacity >> 56) & 0xff;
2054                 cp[1] = (capacity >> 48) & 0xff;
2055                 cp[2] = (capacity >> 40) & 0xff;
2056                 cp[3] = (capacity >> 32) & 0xff;
2057                 cp[4] = (capacity >> 24) & 0xff;
2058                 cp[5] = (capacity >> 16) & 0xff;
2059                 cp[6] = (capacity >> 8) & 0xff;
2060                 cp[7] = (capacity >> 0) & 0xff;
2061                 cp[8] = 0;
2062                 cp[9] = 0;
2063                 cp[10] = 2;
2064                 cp[11] = 0;
2065                 cp[12] = 0;
2066                 aac_internal_transfer(scsicmd, cp, 0,
2067                   min_t(size_t, scsicmd->cmnd[13], sizeof(cp)));
2068                 if (sizeof(cp) < scsicmd->cmnd[13]) {
2069                         unsigned int len, offset = sizeof(cp);
2070
2071                         memset(cp, 0, offset);
2072                         do {
2073                                 len = min_t(size_t, scsicmd->cmnd[13] - offset,
2074                                                 sizeof(cp));
2075                                 aac_internal_transfer(scsicmd, cp, offset, len);
2076                         } while ((offset += len) < scsicmd->cmnd[13]);
2077                 }
2078
2079                 /* Do not cache partition table for arrays */
2080                 scsicmd->device->removable = 1;
2081
2082                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2083                 scsicmd->scsi_done(scsicmd);
2084
2085                 return 0;
2086         }
2087
2088         case READ_CAPACITY:
2089         {
2090                 u32 capacity;
2091                 char cp[8];
2092
2093                 dprintk((KERN_DEBUG "READ CAPACITY command.\n"));
2094                 if (fsa_dev_ptr[cid].size <= 0x100000000ULL)
2095                         capacity = fsa_dev_ptr[cid].size - 1;
2096                 else
2097                         capacity = (u32)-1;
2098
2099                 cp[0] = (capacity >> 24) & 0xff;
2100                 cp[1] = (capacity >> 16) & 0xff;
2101                 cp[2] = (capacity >> 8) & 0xff;
2102                 cp[3] = (capacity >> 0) & 0xff;
2103                 cp[4] = 0;
2104                 cp[5] = 0;
2105                 cp[6] = 2;
2106                 cp[7] = 0;
2107                 aac_internal_transfer(scsicmd, cp, 0, sizeof(cp));
2108                 /* Do not cache partition table for arrays */
2109                 scsicmd->device->removable = 1;
2110
2111                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2112                 scsicmd->scsi_done(scsicmd);
2113
2114                 return 0;
2115         }
2116
2117         case MODE_SENSE:
2118         {
2119                 char mode_buf[7];
2120                 int mode_buf_length = 4;
2121
2122                 dprintk((KERN_DEBUG "MODE SENSE command.\n"));
2123                 mode_buf[0] = 3;        /* Mode data length */
2124                 mode_buf[1] = 0;        /* Medium type - default */
2125                 mode_buf[2] = 0;        /* Device-specific param,
2126                                            bit 8: 0/1 = write enabled/protected
2127                                            bit 4: 0/1 = FUA enabled */
2128                 if (dev->raw_io_interface && ((aac_cache & 5) != 1))
2129                         mode_buf[2] = 0x10;
2130                 mode_buf[3] = 0;        /* Block descriptor length */
2131                 if (((scsicmd->cmnd[2] & 0x3f) == 8) ||
2132                   ((scsicmd->cmnd[2] & 0x3f) == 0x3f)) {
2133                         mode_buf[0] = 6;
2134                         mode_buf[4] = 8;
2135                         mode_buf[5] = 1;
2136                         mode_buf[6] = ((aac_cache & 6) == 2)
2137                                 ? 0 : 0x04; /* WCE */
2138                         mode_buf_length = 7;
2139                         if (mode_buf_length > scsicmd->cmnd[4])
2140                                 mode_buf_length = scsicmd->cmnd[4];
2141                 }
2142                 aac_internal_transfer(scsicmd, mode_buf, 0, mode_buf_length);
2143                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2144                 scsicmd->scsi_done(scsicmd);
2145
2146                 return 0;
2147         }
2148         case MODE_SENSE_10:
2149         {
2150                 char mode_buf[11];
2151                 int mode_buf_length = 8;
2152
2153                 dprintk((KERN_DEBUG "MODE SENSE 10 byte command.\n"));
2154                 mode_buf[0] = 0;        /* Mode data length (MSB) */
2155                 mode_buf[1] = 6;        /* Mode data length (LSB) */
2156                 mode_buf[2] = 0;        /* Medium type - default */
2157                 mode_buf[3] = 0;        /* Device-specific param,
2158                                            bit 8: 0/1 = write enabled/protected
2159                                            bit 4: 0/1 = FUA enabled */
2160                 if (dev->raw_io_interface && ((aac_cache & 5) != 1))
2161                         mode_buf[3] = 0x10;
2162                 mode_buf[4] = 0;        /* reserved */
2163                 mode_buf[5] = 0;        /* reserved */
2164                 mode_buf[6] = 0;        /* Block descriptor length (MSB) */
2165                 mode_buf[7] = 0;        /* Block descriptor length (LSB) */
2166                 if (((scsicmd->cmnd[2] & 0x3f) == 8) ||
2167                   ((scsicmd->cmnd[2] & 0x3f) == 0x3f)) {
2168                         mode_buf[1] = 9;
2169                         mode_buf[8] = 8;
2170                         mode_buf[9] = 1;
2171                         mode_buf[10] = ((aac_cache & 6) == 2)
2172                                 ? 0 : 0x04; /* WCE */
2173                         mode_buf_length = 11;
2174                         if (mode_buf_length > scsicmd->cmnd[8])
2175                                 mode_buf_length = scsicmd->cmnd[8];
2176                 }
2177                 aac_internal_transfer(scsicmd, mode_buf, 0, mode_buf_length);
2178
2179                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2180                 scsicmd->scsi_done(scsicmd);
2181
2182                 return 0;
2183         }
2184         case REQUEST_SENSE:
2185                 dprintk((KERN_DEBUG "REQUEST SENSE command.\n"));
2186                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data, sizeof (struct sense_data));
2187                 memset(&dev->fsa_dev[cid].sense_data, 0, sizeof (struct sense_data));
2188                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2189                 scsicmd->scsi_done(scsicmd);
2190                 return 0;
2191
2192         case ALLOW_MEDIUM_REMOVAL:
2193                 dprintk((KERN_DEBUG "LOCK command.\n"));
2194                 if (scsicmd->cmnd[4])
2195                         fsa_dev_ptr[cid].locked = 1;
2196                 else
2197                         fsa_dev_ptr[cid].locked = 0;
2198
2199                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2200                 scsicmd->scsi_done(scsicmd);
2201                 return 0;
2202         /*
2203          *      These commands are all No-Ops
2204          */
2205         case TEST_UNIT_READY:
2206         case RESERVE:
2207         case RELEASE:
2208         case REZERO_UNIT:
2209         case REASSIGN_BLOCKS:
2210         case SEEK_10:
2211         case START_STOP:
2212                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2213                 scsicmd->scsi_done(scsicmd);
2214                 return 0;
2215         }
2216
2217         switch (scsicmd->cmnd[0])
2218         {
2219                 case READ_6:
2220                 case READ_10:
2221                 case READ_12:
2222                 case READ_16:
2223                         if (dev->in_reset)
2224                                 return -1;
2225                         /*
2226                          *      Hack to keep track of ordinal number of the device that
2227                          *      corresponds to a container. Needed to convert
2228                          *      containers to /dev/sd device names
2229                          */
2230
2231                         if (scsicmd->request->rq_disk)
2232                                 strlcpy(fsa_dev_ptr[cid].devname,
2233                                 scsicmd->request->rq_disk->disk_name,
2234                                 min(sizeof(fsa_dev_ptr[cid].devname),
2235                                 sizeof(scsicmd->request->rq_disk->disk_name) + 1));
2236
2237                         return aac_read(scsicmd);
2238
2239                 case WRITE_6:
2240                 case WRITE_10:
2241                 case WRITE_12:
2242                 case WRITE_16:
2243                         if (dev->in_reset)
2244                                 return -1;
2245                         return aac_write(scsicmd);
2246
2247                 case SYNCHRONIZE_CACHE:
2248                         if (((aac_cache & 6) == 6) && dev->cache_protected) {
2249                                 scsicmd->result = DID_OK << 16 |
2250                                         COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2251                                 scsicmd->scsi_done(scsicmd);
2252                                 return 0;
2253                         }
2254                         /* Issue FIB to tell Firmware to flush it's cache */
2255                         if ((aac_cache & 6) != 2)
2256                                 return aac_synchronize(scsicmd);
2257                         /* FALLTHRU */
2258                 default:
2259                         /*
2260                          *      Unhandled commands
2261                          */
2262                         dprintk((KERN_WARNING "Unhandled SCSI Command: 0x%x.\n", scsicmd->cmnd[0]));
2263                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
2264                         set_sense(&dev->fsa_dev[cid].sense_data,
2265                           ILLEGAL_REQUEST, SENCODE_INVALID_COMMAND,
2266                           ASENCODE_INVALID_COMMAND, 0, 0);
2267                         memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
2268                                 min_t(size_t,
2269                                       sizeof(dev->fsa_dev[cid].sense_data),
2270                                       SCSI_SENSE_BUFFERSIZE));
2271                         scsicmd->scsi_done(scsicmd);
2272                         return 0;
2273         }
2274 }
2275
2276 static int query_disk(struct aac_dev *dev, void __user *arg)
2277 {
2278         struct aac_query_disk qd;
2279         struct fsa_dev_info *fsa_dev_ptr;
2280
2281         fsa_dev_ptr = dev->fsa_dev;
2282         if (!fsa_dev_ptr)
2283                 return -EBUSY;
2284         if (copy_from_user(&qd, arg, sizeof (struct aac_query_disk)))
2285                 return -EFAULT;
2286         if (qd.cnum == -1)
2287                 qd.cnum = qd.id;
2288         else if ((qd.bus == -1) && (qd.id == -1) && (qd.lun == -1))
2289         {
2290                 if (qd.cnum < 0 || qd.cnum >= dev->maximum_num_containers)
2291                         return -EINVAL;
2292                 qd.instance = dev->scsi_host_ptr->host_no;
2293                 qd.bus = 0;
2294                 qd.id = CONTAINER_TO_ID(qd.cnum);
2295                 qd.lun = CONTAINER_TO_LUN(qd.cnum);
2296         }
2297         else return -EINVAL;
2298
2299         qd.valid = fsa_dev_ptr[qd.cnum].valid != 0;
2300         qd.locked = fsa_dev_ptr[qd.cnum].locked;
2301         qd.deleted = fsa_dev_ptr[qd.cnum].deleted;
2302
2303         if (fsa_dev_ptr[qd.cnum].devname[0] == '\0')
2304                 qd.unmapped = 1;
2305         else
2306                 qd.unmapped = 0;
2307
2308         strlcpy(qd.name, fsa_dev_ptr[qd.cnum].devname,
2309           min(sizeof(qd.name), sizeof(fsa_dev_ptr[qd.cnum].devname) + 1));
2310
2311         if (copy_to_user(arg, &qd, sizeof (struct aac_query_disk)))
2312                 return -EFAULT;
2313         return 0;
2314 }
2315
2316 static int force_delete_disk(struct aac_dev *dev, void __user *arg)
2317 {
2318         struct aac_delete_disk dd;
2319         struct fsa_dev_info *fsa_dev_ptr;
2320
2321         fsa_dev_ptr = dev->fsa_dev;
2322         if (!fsa_dev_ptr)
2323                 return -EBUSY;
2324
2325         if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
2326                 return -EFAULT;
2327
2328         if (dd.cnum >= dev->maximum_num_containers)
2329                 return -EINVAL;
2330         /*
2331          *      Mark this container as being deleted.
2332          */
2333         fsa_dev_ptr[dd.cnum].deleted = 1;
2334         /*
2335          *      Mark the container as no longer valid
2336          */
2337         fsa_dev_ptr[dd.cnum].valid = 0;
2338         return 0;
2339 }
2340
2341 static int delete_disk(struct aac_dev *dev, void __user *arg)
2342 {
2343         struct aac_delete_disk dd;
2344         struct fsa_dev_info *fsa_dev_ptr;
2345
2346         fsa_dev_ptr = dev->fsa_dev;
2347         if (!fsa_dev_ptr)
2348                 return -EBUSY;
2349
2350         if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
2351                 return -EFAULT;
2352
2353         if (dd.cnum >= dev->maximum_num_containers)
2354                 return -EINVAL;
2355         /*
2356          *      If the container is locked, it can not be deleted by the API.
2357          */
2358         if (fsa_dev_ptr[dd.cnum].locked)
2359                 return -EBUSY;
2360         else {
2361                 /*
2362                  *      Mark the container as no longer being valid.
2363                  */
2364                 fsa_dev_ptr[dd.cnum].valid = 0;
2365                 fsa_dev_ptr[dd.cnum].devname[0] = '\0';
2366                 return 0;
2367         }
2368 }
2369
2370 int aac_dev_ioctl(struct aac_dev *dev, int cmd, void __user *arg)
2371 {
2372         switch (cmd) {
2373         case FSACTL_QUERY_DISK:
2374                 return query_disk(dev, arg);
2375         case FSACTL_DELETE_DISK:
2376                 return delete_disk(dev, arg);
2377         case FSACTL_FORCE_DELETE_DISK:
2378                 return force_delete_disk(dev, arg);
2379         case FSACTL_GET_CONTAINERS:
2380                 return aac_get_containers(dev);
2381         default:
2382                 return -ENOTTY;
2383         }
2384 }
2385
2386 /**
2387  *
2388  * aac_srb_callback
2389  * @context: the context set in the fib - here it is scsi cmd
2390  * @fibptr: pointer to the fib
2391  *
2392  * Handles the completion of a scsi command to a non dasd device
2393  *
2394  */
2395
2396 static void aac_srb_callback(void *context, struct fib * fibptr)
2397 {
2398         struct aac_dev *dev;
2399         struct aac_srb_reply *srbreply;
2400         struct scsi_cmnd *scsicmd;
2401
2402         scsicmd = (struct scsi_cmnd *) context;
2403
2404         if (!aac_valid_context(scsicmd, fibptr))
2405                 return;
2406
2407         BUG_ON(fibptr == NULL);
2408
2409         dev = fibptr->dev;
2410
2411         srbreply = (struct aac_srb_reply *) fib_data(fibptr);
2412
2413         scsicmd->sense_buffer[0] = '\0';  /* Initialize sense valid flag to false */
2414         /*
2415          *      Calculate resid for sg
2416          */
2417
2418         scsi_set_resid(scsicmd, scsi_bufflen(scsicmd)
2419                        - le32_to_cpu(srbreply->data_xfer_length));
2420
2421         scsi_dma_unmap(scsicmd);
2422
2423         /*
2424          * First check the fib status
2425          */
2426
2427         if (le32_to_cpu(srbreply->status) != ST_OK){
2428                 int len;
2429                 printk(KERN_WARNING "aac_srb_callback: srb failed, status = %d\n", le32_to_cpu(srbreply->status));
2430                 len = min_t(u32, le32_to_cpu(srbreply->sense_data_size),
2431                             SCSI_SENSE_BUFFERSIZE);
2432                 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
2433                 memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
2434         }
2435
2436         /*
2437          * Next check the srb status
2438          */
2439         switch( (le32_to_cpu(srbreply->srb_status))&0x3f){
2440         case SRB_STATUS_ERROR_RECOVERY:
2441         case SRB_STATUS_PENDING:
2442         case SRB_STATUS_SUCCESS:
2443                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
2444                 break;
2445         case SRB_STATUS_DATA_OVERRUN:
2446                 switch(scsicmd->cmnd[0]){
2447                 case  READ_6:
2448                 case  WRITE_6:
2449                 case  READ_10:
2450                 case  WRITE_10:
2451                 case  READ_12:
2452                 case  WRITE_12:
2453                 case  READ_16:
2454                 case  WRITE_16:
2455                         if (le32_to_cpu(srbreply->data_xfer_length) < scsicmd->underflow) {
2456                                 printk(KERN_WARNING"aacraid: SCSI CMD underflow\n");
2457                         } else {
2458                                 printk(KERN_WARNING"aacraid: SCSI CMD Data Overrun\n");
2459                         }
2460                         scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
2461                         break;
2462                 case INQUIRY: {
2463                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
2464                         break;
2465                 }
2466                 default:
2467                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
2468                         break;
2469                 }
2470                 break;
2471         case SRB_STATUS_ABORTED:
2472                 scsicmd->result = DID_ABORT << 16 | ABORT << 8;
2473                 break;
2474         case SRB_STATUS_ABORT_FAILED:
2475                 // Not sure about this one - but assuming the hba was trying to abort for some reason
2476                 scsicmd->result = DID_ERROR << 16 | ABORT << 8;
2477                 break;
2478         case SRB_STATUS_PARITY_ERROR:
2479                 scsicmd->result = DID_PARITY << 16 | MSG_PARITY_ERROR << 8;
2480                 break;
2481         case SRB_STATUS_NO_DEVICE:
2482         case SRB_STATUS_INVALID_PATH_ID:
2483         case SRB_STATUS_INVALID_TARGET_ID:
2484         case SRB_STATUS_INVALID_LUN:
2485         case SRB_STATUS_SELECTION_TIMEOUT:
2486                 scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8;
2487                 break;
2488
2489         case SRB_STATUS_COMMAND_TIMEOUT:
2490         case SRB_STATUS_TIMEOUT:
2491                 scsicmd->result = DID_TIME_OUT << 16 | COMMAND_COMPLETE << 8;
2492                 break;
2493
2494         case SRB_STATUS_BUSY:
2495                 scsicmd->result = DID_BUS_BUSY << 16 | COMMAND_COMPLETE << 8;
2496                 break;
2497
2498         case SRB_STATUS_BUS_RESET:
2499                 scsicmd->result = DID_RESET << 16 | COMMAND_COMPLETE << 8;
2500                 break;
2501
2502         case SRB_STATUS_MESSAGE_REJECTED:
2503                 scsicmd->result = DID_ERROR << 16 | MESSAGE_REJECT << 8;
2504                 break;
2505         case SRB_STATUS_REQUEST_FLUSHED:
2506         case SRB_STATUS_ERROR:
2507         case SRB_STATUS_INVALID_REQUEST:
2508         case SRB_STATUS_REQUEST_SENSE_FAILED:
2509         case SRB_STATUS_NO_HBA:
2510         case SRB_STATUS_UNEXPECTED_BUS_FREE:
2511         case SRB_STATUS_PHASE_SEQUENCE_FAILURE:
2512         case SRB_STATUS_BAD_SRB_BLOCK_LENGTH:
2513         case SRB_STATUS_DELAYED_RETRY:
2514         case SRB_STATUS_BAD_FUNCTION:
2515         case SRB_STATUS_NOT_STARTED:
2516         case SRB_STATUS_NOT_IN_USE:
2517         case SRB_STATUS_FORCE_ABORT:
2518         case SRB_STATUS_DOMAIN_VALIDATION_FAIL:
2519         default:
2520 #ifdef AAC_DETAILED_STATUS_INFO
2521                 printk("aacraid: SRB ERROR(%u) %s scsi cmd 0x%x - scsi status 0x%x\n",
2522                         le32_to_cpu(srbreply->srb_status) & 0x3F,
2523                         aac_get_status_string(
2524                                 le32_to_cpu(srbreply->srb_status) & 0x3F),
2525                         scsicmd->cmnd[0],
2526                         le32_to_cpu(srbreply->scsi_status));
2527 #endif
2528                 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
2529                 break;
2530         }
2531         if (le32_to_cpu(srbreply->scsi_status) == SAM_STAT_CHECK_CONDITION) {
2532                 int len;
2533                 scsicmd->result |= SAM_STAT_CHECK_CONDITION;
2534                 len = min_t(u32, le32_to_cpu(srbreply->sense_data_size),
2535                             SCSI_SENSE_BUFFERSIZE);
2536 #ifdef AAC_DETAILED_STATUS_INFO
2537                 printk(KERN_WARNING "aac_srb_callback: check condition, status = %d len=%d\n",
2538                                         le32_to_cpu(srbreply->status), len);
2539 #endif
2540                 memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
2541         }
2542         /*
2543          * OR in the scsi status (already shifted up a bit)
2544          */
2545         scsicmd->result |= le32_to_cpu(srbreply->scsi_status);
2546
2547         aac_fib_complete(fibptr);
2548         aac_fib_free(fibptr);
2549         scsicmd->scsi_done(scsicmd);
2550 }
2551
2552 /**
2553  *
2554  * aac_send_scb_fib
2555  * @scsicmd: the scsi command block
2556  *
2557  * This routine will form a FIB and fill in the aac_srb from the
2558  * scsicmd passed in.
2559  */
2560
2561 static int aac_send_srb_fib(struct scsi_cmnd* scsicmd)
2562 {
2563         struct fib* cmd_fibcontext;
2564         struct aac_dev* dev;
2565         int status;
2566
2567         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2568         if (scmd_id(scsicmd) >= dev->maximum_num_physicals ||
2569                         scsicmd->device->lun > 7) {
2570                 scsicmd->result = DID_NO_CONNECT << 16;
2571                 scsicmd->scsi_done(scsicmd);
2572                 return 0;
2573         }
2574
2575         /*
2576          *      Allocate and initialize a Fib then setup a BlockWrite command
2577          */
2578         if (!(cmd_fibcontext = aac_fib_alloc(dev))) {
2579                 return -1;
2580         }
2581         status = aac_adapter_scsi(cmd_fibcontext, scsicmd);
2582
2583         /*
2584          *      Check that the command queued to the controller
2585          */
2586         if (status == -EINPROGRESS) {
2587                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
2588                 return 0;
2589         }
2590
2591         printk(KERN_WARNING "aac_srb: aac_fib_send failed with status: %d\n", status);
2592         aac_fib_complete(cmd_fibcontext);
2593         aac_fib_free(cmd_fibcontext);
2594
2595         return -1;
2596 }
2597
2598 static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* psg)
2599 {
2600         struct aac_dev *dev;
2601         unsigned long byte_count = 0;
2602         int nseg;
2603
2604         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2605         // Get rid of old data
2606         psg->count = 0;
2607         psg->sg[0].addr = 0;
2608         psg->sg[0].count = 0;
2609
2610         nseg = scsi_dma_map(scsicmd);
2611         BUG_ON(nseg < 0);
2612         if (nseg) {
2613                 struct scatterlist *sg;
2614                 int i;
2615
2616                 psg->count = cpu_to_le32(nseg);
2617
2618                 scsi_for_each_sg(scsicmd, sg, nseg, i) {
2619                         psg->sg[i].addr = cpu_to_le32(sg_dma_address(sg));
2620                         psg->sg[i].count = cpu_to_le32(sg_dma_len(sg));
2621                         byte_count += sg_dma_len(sg);
2622                 }
2623                 /* hba wants the size to be exact */
2624                 if (byte_count > scsi_bufflen(scsicmd)) {
2625                         u32 temp = le32_to_cpu(psg->sg[i-1].count) -
2626                                 (byte_count - scsi_bufflen(scsicmd));
2627                         psg->sg[i-1].count = cpu_to_le32(temp);
2628                         byte_count = scsi_bufflen(scsicmd);
2629                 }
2630                 /* Check for command underflow */
2631                 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2632                         printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2633                                         byte_count, scsicmd->underflow);
2634                 }
2635         }
2636         return byte_count;
2637 }
2638
2639
2640 static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* psg)
2641 {
2642         struct aac_dev *dev;
2643         unsigned long byte_count = 0;
2644         u64 addr;
2645         int nseg;
2646
2647         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2648         // Get rid of old data
2649         psg->count = 0;
2650         psg->sg[0].addr[0] = 0;
2651         psg->sg[0].addr[1] = 0;
2652         psg->sg[0].count = 0;
2653
2654         nseg = scsi_dma_map(scsicmd);
2655         BUG_ON(nseg < 0);
2656         if (nseg) {
2657                 struct scatterlist *sg;
2658                 int i;
2659
2660                 scsi_for_each_sg(scsicmd, sg, nseg, i) {
2661                         int count = sg_dma_len(sg);
2662                         addr = sg_dma_address(sg);
2663                         psg->sg[i].addr[0] = cpu_to_le32(addr & 0xffffffff);
2664                         psg->sg[i].addr[1] = cpu_to_le32(addr>>32);
2665                         psg->sg[i].count = cpu_to_le32(count);
2666                         byte_count += count;
2667                 }
2668                 psg->count = cpu_to_le32(nseg);
2669                 /* hba wants the size to be exact */
2670                 if (byte_count > scsi_bufflen(scsicmd)) {
2671                         u32 temp = le32_to_cpu(psg->sg[i-1].count) -
2672                                 (byte_count - scsi_bufflen(scsicmd));
2673                         psg->sg[i-1].count = cpu_to_le32(temp);
2674                         byte_count = scsi_bufflen(scsicmd);
2675                 }
2676                 /* Check for command underflow */
2677                 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2678                         printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2679                                         byte_count, scsicmd->underflow);
2680                 }
2681         }
2682         return byte_count;
2683 }
2684
2685 static unsigned long aac_build_sgraw(struct scsi_cmnd* scsicmd, struct sgmapraw* psg)
2686 {
2687         unsigned long byte_count = 0;
2688         int nseg;
2689
2690         // Get rid of old data
2691         psg->count = 0;
2692         psg->sg[0].next = 0;
2693         psg->sg[0].prev = 0;
2694         psg->sg[0].addr[0] = 0;
2695         psg->sg[0].addr[1] = 0;
2696         psg->sg[0].count = 0;
2697         psg->sg[0].flags = 0;
2698
2699         nseg = scsi_dma_map(scsicmd);
2700         BUG_ON(nseg < 0);
2701         if (nseg) {
2702                 struct scatterlist *sg;
2703                 int i;
2704
2705                 scsi_for_each_sg(scsicmd, sg, nseg, i) {
2706                         int count = sg_dma_len(sg);
2707                         u64 addr = sg_dma_address(sg);
2708                         psg->sg[i].next = 0;
2709                         psg->sg[i].prev = 0;
2710                         psg->sg[i].addr[1] = cpu_to_le32((u32)(addr>>32));
2711                         psg->sg[i].addr[0] = cpu_to_le32((u32)(addr & 0xffffffff));
2712                         psg->sg[i].count = cpu_to_le32(count);
2713                         psg->sg[i].flags = 0;
2714                         byte_count += count;
2715                 }
2716                 psg->count = cpu_to_le32(nseg);
2717                 /* hba wants the size to be exact */
2718                 if (byte_count > scsi_bufflen(scsicmd)) {
2719                         u32 temp = le32_to_cpu(psg->sg[i-1].count) -
2720                                 (byte_count - scsi_bufflen(scsicmd));
2721                         psg->sg[i-1].count = cpu_to_le32(temp);
2722                         byte_count = scsi_bufflen(scsicmd);
2723                 }
2724                 /* Check for command underflow */
2725                 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2726                         printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2727                                         byte_count, scsicmd->underflow);
2728                 }
2729         }
2730         return byte_count;
2731 }
2732
2733 #ifdef AAC_DETAILED_STATUS_INFO
2734
2735 struct aac_srb_status_info {
2736         u32     status;
2737         char    *str;
2738 };
2739
2740
2741 static struct aac_srb_status_info srb_status_info[] = {
2742         { SRB_STATUS_PENDING,           "Pending Status"},
2743         { SRB_STATUS_SUCCESS,           "Success"},
2744         { SRB_STATUS_ABORTED,           "Aborted Command"},
2745         { SRB_STATUS_ABORT_FAILED,      "Abort Failed"},
2746         { SRB_STATUS_ERROR,             "Error Event"},
2747         { SRB_STATUS_BUSY,              "Device Busy"},
2748         { SRB_STATUS_INVALID_REQUEST,   "Invalid Request"},
2749         { SRB_STATUS_INVALID_PATH_ID,   "Invalid Path ID"},
2750         { SRB_STATUS_NO_DEVICE,         "No Device"},
2751         { SRB_STATUS_TIMEOUT,           "Timeout"},
2752         { SRB_STATUS_SELECTION_TIMEOUT, "Selection Timeout"},
2753         { SRB_STATUS_COMMAND_TIMEOUT,   "Command Timeout"},
2754         { SRB_STATUS_MESSAGE_REJECTED,  "Message Rejected"},
2755         { SRB_STATUS_BUS_RESET,         "Bus Reset"},
2756         { SRB_STATUS_PARITY_ERROR,      "Parity Error"},
2757         { SRB_STATUS_REQUEST_SENSE_FAILED,"Request Sense Failed"},
2758         { SRB_STATUS_NO_HBA,            "No HBA"},
2759         { SRB_STATUS_DATA_OVERRUN,      "Data Overrun/Data Underrun"},
2760         { SRB_STATUS_UNEXPECTED_BUS_FREE,"Unexpected Bus Free"},
2761         { SRB_STATUS_PHASE_SEQUENCE_FAILURE,"Phase Error"},
2762         { SRB_STATUS_BAD_SRB_BLOCK_LENGTH,"Bad Srb Block Length"},
2763         { SRB_STATUS_REQUEST_FLUSHED,   "Request Flushed"},
2764         { SRB_STATUS_DELAYED_RETRY,     "Delayed Retry"},
2765         { SRB_STATUS_INVALID_LUN,       "Invalid LUN"},
2766         { SRB_STATUS_INVALID_TARGET_ID, "Invalid TARGET ID"},
2767         { SRB_STATUS_BAD_FUNCTION,      "Bad Function"},
2768         { SRB_STATUS_ERROR_RECOVERY,    "Error Recovery"},
2769         { SRB_STATUS_NOT_STARTED,       "Not Started"},
2770         { SRB_STATUS_NOT_IN_USE,        "Not In Use"},
2771         { SRB_STATUS_FORCE_ABORT,       "Force Abort"},
2772         { SRB_STATUS_DOMAIN_VALIDATION_FAIL,"Domain Validation Failure"},
2773         { 0xff,                         "Unknown Error"}
2774 };
2775
2776 char *aac_get_status_string(u32 status)
2777 {
2778         int i;
2779
2780         for (i = 0; i < ARRAY_SIZE(srb_status_info); i++)
2781                 if (srb_status_info[i].status == status)
2782                         return srb_status_info[i].str;
2783
2784         return "Bad Status Code";
2785 }
2786
2787 #endif