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 = 0;
 148 static int dacmode = -1;
 149
 150 int aac_commit = -1;
 151 int startup_timeout = 180;
 152 int aif_timeout = 120;
 153
 154 module_param(nondasd, int, S_IRUGO|S_IWUSR);
 155 MODULE_PARM_DESC(nondasd, "Control scanning of hba for nondasd devices. 0=off, 1=on");
 156 module_param_named(cache, aac_cache, int, S_IRUGO|S_IWUSR);
 157 MODULE_PARM_DESC(cache, "Disable Queue Flush commands:\n\tbit 0 - Disable FUA in WRITE SCSI commands\n\tbit 1 - Disable SYNCHRONIZE_CACHE SCSI command\n\tbit 2 - Disable only if Battery not protecting Cache");
 158 module_param(dacmode, int, S_IRUGO|S_IWUSR);
 159 MODULE_PARM_DESC(dacmode, "Control whether dma addressing is using 64 bit DAC. 0=off, 1=on");
 160 module_param_named(commit, aac_commit, int, S_IRUGO|S_IWUSR);
 161 MODULE_PARM_DESC(commit, "Control whether a COMMIT_CONFIG is issued to the adapter for foreign arrays.\nThis is typically needed in systems that do not have a BIOS. 0=off, 1=on");
 162 module_param(startup_timeout, int, S_IRUGO|S_IWUSR);
 163 MODULE_PARM_DESC(startup_timeout, "The duration of time in seconds to wait for adapter to have it's kernel up and\nrunning. This is typically adjusted for large systems that do not have a BIOS.");
 164 module_param(aif_timeout, int, S_IRUGO|S_IWUSR);
 165 MODULE_PARM_DESC(aif_timeout, "The duration of time in seconds to wait for applications to pick up AIFs before\nderegistering them. This is typically adjusted for heavily burdened systems.");
 166
 167 int numacb = -1;
 168 module_param(numacb, int, S_IRUGO|S_IWUSR);
 169 MODULE_PARM_DESC(numacb, "Request a limit to the number of adapter control blocks (FIB) allocated. Valid values are 512 and down. Default is to use suggestion from Firmware.");
 170
 171 int acbsize = -1;
 172 module_param(acbsize, int, S_IRUGO|S_IWUSR);
 173 MODULE_PARM_DESC(acbsize, "Request a specific adapter control block (FIB) size. Valid values are 512, 2048, 4096 and 8192. Default is to use suggestion from Firmware.");
 174
 175 int update_interval = 30 * 60;
 176 module_param(update_interval, int, S_IRUGO|S_IWUSR);
 177 MODULE_PARM_DESC(update_interval, "Interval in seconds between time sync updates issued to adapter.");
 178
 179 int check_interval = 24 * 60 * 60;
 180 module_param(check_interval, int, S_IRUGO|S_IWUSR);
 181 MODULE_PARM_DESC(check_interval, "Interval in seconds between adapter health checks.");
 182
 183 int aac_check_reset = 1;
 184 module_param_named(check_reset, aac_check_reset, int, S_IRUGO|S_IWUSR);
 185 MODULE_PARM_DESC(aac_check_reset, "If adapter fails health check, reset the adapter. a value of -1 forces the reset to adapters programmed to ignore it.");
 186
 187 int expose_physicals = -1;
 188 module_param(expose_physicals, int, S_IRUGO|S_IWUSR);
 189 MODULE_PARM_DESC(expose_physicals, "Expose physical components of the arrays. -1=protect 0=off, 1=on");
 190
 191 int aac_reset_devices = 0;
 192 module_param_named(reset_devices, aac_reset_devices, int, S_IRUGO|S_IWUSR);
 193 MODULE_PARM_DESC(reset_devices, "Force an adapter reset at initialization.");
 194
 195 static inline int aac_valid_context(struct scsi_cmnd *scsicmd,
 196                 struct fib *fibptr) {
 197         struct scsi_device *device;
 198
 199         if (unlikely(!scsicmd || !scsicmd->scsi_done)) {
 200                 dprintk((KERN_WARNING "aac_valid_context: scsi command corrupt\n"));
 201                 aac_fib_complete(fibptr);
 202                 aac_fib_free(fibptr);
 203                 return 0;
 204         }
 205         scsicmd->SCp.phase = AAC_OWNER_MIDLEVEL;
 206         device = scsicmd->device;
 207         if (unlikely(!device || !scsi_device_online(device))) {
 208                 dprintk((KERN_WARNING "aac_valid_context: scsi device corrupt\n"));
 209                 aac_fib_complete(fibptr);
 210                 aac_fib_free(fibptr);
 211                 return 0;
 212         }
 213         return 1;
 214 }
 215
 216 /**
 217  *      aac_get_config_status   -       check the adapter configuration
 218  *      @common: adapter to query
 219  *
 220  *      Query config status, and commit the configuration if needed.
 221  */
 222 int aac_get_config_status(struct aac_dev *dev, int commit_flag)
 223 {
 224         int status = 0;
 225         struct fib * fibptr;
 226
 227         if (!(fibptr = aac_fib_alloc(dev)))
 228                 return -ENOMEM;
 229
 230         aac_fib_init(fibptr);
 231         {
 232                 struct aac_get_config_status *dinfo;
 233                 dinfo = (struct aac_get_config_status *) fib_data(fibptr);
 234
 235                 dinfo->command = cpu_to_le32(VM_ContainerConfig);
 236                 dinfo->type = cpu_to_le32(CT_GET_CONFIG_STATUS);
 237                 dinfo->count = cpu_to_le32(sizeof(((struct aac_get_config_status_resp *)NULL)->data));
 238         }
 239
 240         status = aac_fib_send(ContainerCommand,
 241                             fibptr,
 242                             sizeof (struct aac_get_config_status),
 243                             FsaNormal,
 244                             1, 1,
 245                             NULL, NULL);
 246         if (status < 0) {
 247                 printk(KERN_WARNING "aac_get_config_status: SendFIB failed.\n");
 248         } else {
 249                 struct aac_get_config_status_resp *reply
 250                   = (struct aac_get_config_status_resp *) fib_data(fibptr);
 251                 dprintk((KERN_WARNING
 252                   "aac_get_config_status: response=%d status=%d action=%d\n",
 253                   le32_to_cpu(reply->response),
 254                   le32_to_cpu(reply->status),
 255                   le32_to_cpu(reply->data.action)));
 256                 if ((le32_to_cpu(reply->response) != ST_OK) ||
 257                      (le32_to_cpu(reply->status) != CT_OK) ||
 258                      (le32_to_cpu(reply->data.action) > CFACT_PAUSE)) {
 259                         printk(KERN_WARNING "aac_get_config_status: Will not issue the Commit Configuration\n");
 260                         status = -EINVAL;
 261                 }
 262         }
 263         aac_fib_complete(fibptr);
 264         /* Send a CT_COMMIT_CONFIG to enable discovery of devices */
 265         if (status >= 0) {
 266                 if ((aac_commit == 1) || commit_flag) {
 267                         struct aac_commit_config * dinfo;
 268                         aac_fib_init(fibptr);
 269                         dinfo = (struct aac_commit_config *) fib_data(fibptr);
 270
 271                         dinfo->command = cpu_to_le32(VM_ContainerConfig);
 272                         dinfo->type = cpu_to_le32(CT_COMMIT_CONFIG);
 273
 274                         status = aac_fib_send(ContainerCommand,
 275                                     fibptr,
 276                                     sizeof (struct aac_commit_config),
 277                                     FsaNormal,
 278                                     1, 1,
 279                                     NULL, NULL);
 280                         aac_fib_complete(fibptr);
 281                 } else if (aac_commit == 0) {
 282                         printk(KERN_WARNING
 283                           "aac_get_config_status: Foreign device configurations are being ignored\n");
 284                 }
 285         }
 286         aac_fib_free(fibptr);
 287         return status;
 288 }
 289
 290 /**
 291  *      aac_get_containers      -       list containers
 292  *      @common: adapter to probe
 293  *
 294  *      Make a list of all containers on this controller
 295  */
 296 int aac_get_containers(struct aac_dev *dev)
 297 {
 298         struct fsa_dev_info *fsa_dev_ptr;
 299         u32 index;
 300         int status = 0;
 301         struct fib * fibptr;
 302         struct aac_get_container_count *dinfo;
 303         struct aac_get_container_count_resp *dresp;
 304         int maximum_num_containers = MAXIMUM_NUM_CONTAINERS;
 305
 306         if (!(fibptr = aac_fib_alloc(dev)))
 307                 return -ENOMEM;
 308
 309         aac_fib_init(fibptr);
 310         dinfo = (struct aac_get_container_count *) fib_data(fibptr);
 311         dinfo->command = cpu_to_le32(VM_ContainerConfig);
 312         dinfo->type = cpu_to_le32(CT_GET_CONTAINER_COUNT);
 313
 314         status = aac_fib_send(ContainerCommand,
 315                     fibptr,
 316                     sizeof (struct aac_get_container_count),
 317                     FsaNormal,
 318                     1, 1,
 319                     NULL, NULL);
 320         if (status >= 0) {
 321                 dresp = (struct aac_get_container_count_resp *)fib_data(fibptr);
 322                 maximum_num_containers = le32_to_cpu(dresp->ContainerSwitchEntries);
 323                 aac_fib_complete(fibptr);
 324         }
 325         aac_fib_free(fibptr);
 326
 327         if (maximum_num_containers < MAXIMUM_NUM_CONTAINERS)
 328                 maximum_num_containers = MAXIMUM_NUM_CONTAINERS;
 329         fsa_dev_ptr = kzalloc(sizeof(*fsa_dev_ptr) * maximum_num_containers,
 330                         GFP_KERNEL);
 331         if (!fsa_dev_ptr)
 332                 return -ENOMEM;
 333
 334         dev->fsa_dev = fsa_dev_ptr;
 335         dev->maximum_num_containers = maximum_num_containers;
 336
 337         for (index = 0; index < dev->maximum_num_containers; ) {
 338                 fsa_dev_ptr[index].devname[0] = '\0';
 339
 340                 status = aac_probe_container(dev, index);
 341
 342                 if (status < 0) {
 343                         printk(KERN_WARNING "aac_get_containers: SendFIB failed.\n");
 344                         break;
 345                 }
 346
 347                 /*
 348                  *      If there are no more containers, then stop asking.
 349                  */
 350                 if (++index >= status)
 351                         break;
 352         }
 353         return status;
 354 }
 355
 356 static void aac_internal_transfer(struct scsi_cmnd *scsicmd, void *data, unsigned int offset, unsigned int len)
 357 {
 358         void *buf;
 359         int transfer_len;
 360         struct scatterlist *sg = scsi_sglist(scsicmd);
 361
 362         buf = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset;
 363         transfer_len = min(sg->length, len + offset);
 364
 365         transfer_len -= offset;
 366         if (buf && transfer_len > 0)
 367                 memcpy(buf + offset, data, transfer_len);
 368
 369         flush_kernel_dcache_page(kmap_atomic_to_page(buf - sg->offset));
 370         kunmap_atomic(buf - sg->offset, KM_IRQ0);
 371
 372 }
 373
 374 static void get_container_name_callback(void *context, struct fib * fibptr)
 375 {
 376         struct aac_get_name_resp * get_name_reply;
 377         struct scsi_cmnd * scsicmd;
 378
 379         scsicmd = (struct scsi_cmnd *) context;
 380
 381         if (!aac_valid_context(scsicmd, fibptr))
 382                 return;
 383
 384         dprintk((KERN_DEBUG "get_container_name_callback[cpu %d]: t = %ld.\n", smp_processor_id(), jiffies));
 385         BUG_ON(fibptr == NULL);
 386
 387         get_name_reply = (struct aac_get_name_resp *) fib_data(fibptr);
 388         /* Failure is irrelevant, using default value instead */
 389         if ((le32_to_cpu(get_name_reply->status) == CT_OK)
 390          && (get_name_reply->data[0] != '\0')) {
 391                 char *sp = get_name_reply->data;
 392                 sp[sizeof(((struct aac_get_name_resp *)NULL)->data)-1] = '\0';
 393                 while (*sp == ' ')
 394                         ++sp;
 395                 if (*sp) {
 396                         char d[sizeof(((struct inquiry_data *)NULL)->inqd_pid)];
 397                         int count = sizeof(d);
 398                         char *dp = d;
 399                         do {
 400                                 *dp++ = (*sp) ? *sp++ : ' ';
 401                         } while (--count > 0);
 402                         aac_internal_transfer(scsicmd, d,
 403                           offsetof(struct inquiry_data, inqd_pid), sizeof(d));
 404                 }
 405         }
 406
 407         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
 408
 409         aac_fib_complete(fibptr);
 410         aac_fib_free(fibptr);
 411         scsicmd->scsi_done(scsicmd);
 412 }
 413
 414 /**
 415  *      aac_get_container_name  -       get container name, none blocking.
 416  */
 417 static int aac_get_container_name(struct scsi_cmnd * scsicmd)
 418 {
 419         int status;
 420         struct aac_get_name *dinfo;
 421         struct fib * cmd_fibcontext;
 422         struct aac_dev * dev;
 423
 424         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
 425
 426         if (!(cmd_fibcontext = aac_fib_alloc(dev)))
 427                 return -ENOMEM;
 428
 429         aac_fib_init(cmd_fibcontext);
 430         dinfo = (struct aac_get_name *) fib_data(cmd_fibcontext);
 431
 432         dinfo->command = cpu_to_le32(VM_ContainerConfig);
 433         dinfo->type = cpu_to_le32(CT_READ_NAME);
 434         dinfo->cid = cpu_to_le32(scmd_id(scsicmd));
 435         dinfo->count = cpu_to_le32(sizeof(((struct aac_get_name_resp *)NULL)->data));
 436
 437         status = aac_fib_send(ContainerCommand,
 438                   cmd_fibcontext,
 439                   sizeof (struct aac_get_name),
 440                   FsaNormal,
 441                   0, 1,
 442                   (fib_callback)get_container_name_callback,
 443                   (void *) scsicmd);
 444
 445         /*
 446          *      Check that the command queued to the controller
 447          */
 448         if (status == -EINPROGRESS) {
 449                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
 450                 return 0;
 451         }
 452
 453         printk(KERN_WARNING "aac_get_container_name: aac_fib_send failed with status: %d.\n", status);
 454         aac_fib_complete(cmd_fibcontext);
 455         aac_fib_free(cmd_fibcontext);
 456         return -1;
 457 }
 458
 459 static int aac_probe_container_callback2(struct scsi_cmnd * scsicmd)
 460 {
 461         struct fsa_dev_info *fsa_dev_ptr = ((struct aac_dev *)(scsicmd->device->host->hostdata))->fsa_dev;
 462
 463         if ((fsa_dev_ptr[scmd_id(scsicmd)].valid & 1))
 464                 return aac_scsi_cmd(scsicmd);
 465
 466         scsicmd->result = DID_NO_CONNECT << 16;
 467         scsicmd->scsi_done(scsicmd);
 468         return 0;
 469 }
 470
 471 static void _aac_probe_container2(void * context, struct fib * fibptr)
 472 {
 473         struct fsa_dev_info *fsa_dev_ptr;
 474         int (*callback)(struct scsi_cmnd *);
 475         struct scsi_cmnd * scsicmd = (struct scsi_cmnd *)context;
 476
 477
 478         if (!aac_valid_context(scsicmd, fibptr))
 479                 return;
 480
 481         scsicmd->SCp.Status = 0;
 482         fsa_dev_ptr = fibptr->dev->fsa_dev;
 483         if (fsa_dev_ptr) {
 484                 struct aac_mount * dresp = (struct aac_mount *) fib_data(fibptr);
 485                 fsa_dev_ptr += scmd_id(scsicmd);
 486
 487                 if ((le32_to_cpu(dresp->status) == ST_OK) &&
 488                     (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE) &&
 489                     (le32_to_cpu(dresp->mnt[0].state) != FSCS_HIDDEN)) {
 490                         fsa_dev_ptr->valid = 1;
 491                         fsa_dev_ptr->type = le32_to_cpu(dresp->mnt[0].vol);
 492                         fsa_dev_ptr->size
 493                           = ((u64)le32_to_cpu(dresp->mnt[0].capacity)) +
 494                             (((u64)le32_to_cpu(dresp->mnt[0].capacityhigh)) << 32);
 495                         fsa_dev_ptr->ro = ((le32_to_cpu(dresp->mnt[0].state) & FSCS_READONLY) != 0);
 496                 }
 497                 if ((fsa_dev_ptr->valid & 1) == 0)
 498                         fsa_dev_ptr->valid = 0;
 499                 scsicmd->SCp.Status = le32_to_cpu(dresp->count);
 500         }
 501         aac_fib_complete(fibptr);
 502         aac_fib_free(fibptr);
 503         callback = (int (*)(struct scsi_cmnd *))(scsicmd->SCp.ptr);
 504         scsicmd->SCp.ptr = NULL;
 505         (*callback)(scsicmd);
 506         return;
 507 }
 508
 509 static void _aac_probe_container1(void * context, struct fib * fibptr)
 510 {
 511         struct scsi_cmnd * scsicmd;
 512         struct aac_mount * dresp;
 513         struct aac_query_mount *dinfo;
 514         int status;
 515
 516         dresp = (struct aac_mount *) fib_data(fibptr);
 517         dresp->mnt[0].capacityhigh = 0;
 518         if ((le32_to_cpu(dresp->status) != ST_OK) ||
 519             (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE)) {
 520                 _aac_probe_container2(context, fibptr);
 521                 return;
 522         }
 523         scsicmd = (struct scsi_cmnd *) context;
 524
 525         if (!aac_valid_context(scsicmd, fibptr))
 526                 return;
 527
 528         aac_fib_init(fibptr);
 529
 530         dinfo = (struct aac_query_mount *)fib_data(fibptr);
 531
 532         dinfo->command = cpu_to_le32(VM_NameServe64);
 533         dinfo->count = cpu_to_le32(scmd_id(scsicmd));
 534         dinfo->type = cpu_to_le32(FT_FILESYS);
 535
 536         status = aac_fib_send(ContainerCommand,
 537                           fibptr,
 538                           sizeof(struct aac_query_mount),
 539                           FsaNormal,
 540                           0, 1,
 541                           _aac_probe_container2,
 542                           (void *) scsicmd);
 543         /*
 544          *      Check that the command queued to the controller
 545          */
 546         if (status == -EINPROGRESS)
 547                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
 548         else if (status < 0) {
 549                 /* Inherit results from VM_NameServe, if any */
 550                 dresp->status = cpu_to_le32(ST_OK);
 551                 _aac_probe_container2(context, fibptr);
 552         }
 553 }
 554
 555 static int _aac_probe_container(struct scsi_cmnd * scsicmd, int (*callback)(struct scsi_cmnd *))
 556 {
 557         struct fib * fibptr;
 558         int status = -ENOMEM;
 559
 560         if ((fibptr = aac_fib_alloc((struct aac_dev *)scsicmd->device->host->hostdata))) {
 561                 struct aac_query_mount *dinfo;
 562
 563                 aac_fib_init(fibptr);
 564
 565                 dinfo = (struct aac_query_mount *)fib_data(fibptr);
 566
 567                 dinfo->command = cpu_to_le32(VM_NameServe);
 568                 dinfo->count = cpu_to_le32(scmd_id(scsicmd));
 569                 dinfo->type = cpu_to_le32(FT_FILESYS);
 570                 scsicmd->SCp.ptr = (char *)callback;
 571
 572                 status = aac_fib_send(ContainerCommand,
 573                           fibptr,
 574                           sizeof(struct aac_query_mount),
 575                           FsaNormal,
 576                           0, 1,
 577                           _aac_probe_container1,
 578                           (void *) scsicmd);
 579                 /*
 580                  *      Check that the command queued to the controller
 581                  */
 582                 if (status == -EINPROGRESS) {
 583                         scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
 584                         return 0;
 585                 }
 586                 if (status < 0) {
 587                         scsicmd->SCp.ptr = NULL;
 588                         aac_fib_complete(fibptr);
 589                         aac_fib_free(fibptr);
 590                 }
 591         }
 592         if (status < 0) {
 593                 struct fsa_dev_info *fsa_dev_ptr = ((struct aac_dev *)(scsicmd->device->host->hostdata))->fsa_dev;
 594                 if (fsa_dev_ptr) {
 595                         fsa_dev_ptr += scmd_id(scsicmd);
 596                         if ((fsa_dev_ptr->valid & 1) == 0) {
 597                                 fsa_dev_ptr->valid = 0;
 598                                 return (*callback)(scsicmd);
 599                         }
 600                 }
 601         }
 602         return status;
 603 }
 604
 605 /**
 606  *      aac_probe_container             -       query a logical volume
 607  *      @dev: device to query
 608  *      @cid: container identifier
 609  *
 610  *      Queries the controller about the given volume. The volume information
 611  *      is updated in the struct fsa_dev_info structure rather than returned.
 612  */
 613 static int aac_probe_container_callback1(struct scsi_cmnd * scsicmd)
 614 {
 615         scsicmd->device = NULL;
 616         return 0;
 617 }
 618
 619 int aac_probe_container(struct aac_dev *dev, int cid)
 620 {
 621         struct scsi_cmnd *scsicmd = kmalloc(sizeof(*scsicmd), GFP_KERNEL);
 622         struct scsi_device *scsidev = kmalloc(sizeof(*scsidev), GFP_KERNEL);
 623         int status;
 624
 625         if (!scsicmd || !scsidev) {
 626                 kfree(scsicmd);
 627                 kfree(scsidev);
 628                 return -ENOMEM;
 629         }
 630         scsicmd->list.next = NULL;
 631         scsicmd->scsi_done = (void (*)(struct scsi_cmnd*))aac_probe_container_callback1;
 632
 633         scsicmd->device = scsidev;
 634         scsidev->sdev_state = 0;
 635         scsidev->id = cid;
 636         scsidev->host = dev->scsi_host_ptr;
 637
 638         if (_aac_probe_container(scsicmd, aac_probe_container_callback1) == 0)
 639                 while (scsicmd->device == scsidev)
 640                         schedule();
 641         kfree(scsidev);
 642         status = scsicmd->SCp.Status;
 643         kfree(scsicmd);
 644         return status;
 645 }
 646
 647 /* Local Structure to set SCSI inquiry data strings */
 648 struct scsi_inq {
 649         char vid[8];         /* Vendor ID */
 650         char pid[16];        /* Product ID */
 651         char prl[4];         /* Product Revision Level */
 652 };
 653
 654 /**
 655  *      InqStrCopy      -       string merge
 656  *      @a:     string to copy from
 657  *      @b:     string to copy to
 658  *
 659  *      Copy a String from one location to another
 660  *      without copying \0
 661  */
 662
 663 static void inqstrcpy(char *a, char *b)
 664 {
 665
 666         while (*a != (char)0)
 667                 *b++ = *a++;
 668 }
 669
 670 static char *container_types[] = {
 671         "None",
 672         "Volume",
 673         "Mirror",
 674         "Stripe",
 675         "RAID5",
 676         "SSRW",
 677         "SSRO",
 678         "Morph",
 679         "Legacy",
 680         "RAID4",
 681         "RAID10",
 682         "RAID00",
 683         "V-MIRRORS",
 684         "PSEUDO R4",
 685         "RAID50",
 686         "RAID5D",
 687         "RAID5D0",
 688         "RAID1E",
 689         "RAID6",
 690         "RAID60",
 691         "Unknown"
 692 };
 693
 694 char * get_container_type(unsigned tindex)
 695 {
 696         if (tindex >= ARRAY_SIZE(container_types))
 697                 tindex = ARRAY_SIZE(container_types) - 1;
 698         return container_types[tindex];
 699 }
 700
 701 /* Function: setinqstr
 702  *
 703  * Arguments: [1] pointer to void [1] int
 704  *
 705  * Purpose: Sets SCSI inquiry data strings for vendor, product
 706  * and revision level. Allows strings to be set in platform dependant
 707  * files instead of in OS dependant driver source.
 708  */
 709
 710 static void setinqstr(struct aac_dev *dev, void *data, int tindex)
 711 {
 712         struct scsi_inq *str;
 713
 714         str = (struct scsi_inq *)(data); /* cast data to scsi inq block */
 715         memset(str, ' ', sizeof(*str));
 716
 717         if (dev->supplement_adapter_info.AdapterTypeText[0]) {
 718                 char * cp = dev->supplement_adapter_info.AdapterTypeText;
 719                 int c;
 720                 if ((cp[0] == 'A') && (cp[1] == 'O') && (cp[2] == 'C'))
 721                         inqstrcpy("SMC", str->vid);
 722                 else {
 723                         c = sizeof(str->vid);
 724                         while (*cp && *cp != ' ' && --c)
 725                                 ++cp;
 726                         c = *cp;
 727                         *cp = '\0';
 728                         inqstrcpy (dev->supplement_adapter_info.AdapterTypeText,
 729                                    str->vid);
 730                         *cp = c;
 731                         while (*cp && *cp != ' ')
 732                                 ++cp;
 733                 }
 734                 while (*cp == ' ')
 735                         ++cp;
 736                 /* last six chars reserved for vol type */
 737                 c = 0;
 738                 if (strlen(cp) > sizeof(str->pid)) {
 739                         c = cp[sizeof(str->pid)];
 740                         cp[sizeof(str->pid)] = '\0';
 741                 }
 742                 inqstrcpy (cp, str->pid);
 743                 if (c)
 744                         cp[sizeof(str->pid)] = c;
 745         } else {
 746                 struct aac_driver_ident *mp = aac_get_driver_ident(dev->cardtype);
 747
 748                 inqstrcpy (mp->vname, str->vid);
 749                 /* last six chars reserved for vol type */
 750                 inqstrcpy (mp->model, str->pid);
 751         }
 752
 753         if (tindex < ARRAY_SIZE(container_types)){
 754                 char *findit = str->pid;
 755
 756                 for ( ; *findit != ' '; findit++); /* walk till we find a space */
 757                 /* RAID is superfluous in the context of a RAID device */
 758                 if (memcmp(findit-4, "RAID", 4) == 0)
 759                         *(findit -= 4) = ' ';
 760                 if (((findit - str->pid) + strlen(container_types[tindex]))
 761                  < (sizeof(str->pid) + sizeof(str->prl)))
 762                         inqstrcpy (container_types[tindex], findit + 1);
 763         }
 764         inqstrcpy ("V1.0", str->prl);
 765 }
 766
 767 static void get_container_serial_callback(void *context, struct fib * fibptr)
 768 {
 769         struct aac_get_serial_resp * get_serial_reply;
 770         struct scsi_cmnd * scsicmd;
 771
 772         BUG_ON(fibptr == NULL);
 773
 774         scsicmd = (struct scsi_cmnd *) context;
 775         if (!aac_valid_context(scsicmd, fibptr))
 776                 return;
 777
 778         get_serial_reply = (struct aac_get_serial_resp *) fib_data(fibptr);
 779         /* Failure is irrelevant, using default value instead */
 780         if (le32_to_cpu(get_serial_reply->status) == CT_OK) {
 781                 char sp[13];
 782                 /* EVPD bit set */
 783                 sp[0] = INQD_PDT_DA;
 784                 sp[1] = scsicmd->cmnd[2];
 785                 sp[2] = 0;
 786                 sp[3] = snprintf(sp+4, sizeof(sp)-4, "%08X",
 787                   le32_to_cpu(get_serial_reply->uid));
 788                 aac_internal_transfer(scsicmd, sp, 0, sizeof(sp));
 789         }
 790
 791         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
 792
 793         aac_fib_complete(fibptr);
 794         aac_fib_free(fibptr);
 795         scsicmd->scsi_done(scsicmd);
 796 }
 797
 798 /**
 799  *      aac_get_container_serial - get container serial, none blocking.
 800  */
 801 static int aac_get_container_serial(struct scsi_cmnd * scsicmd)
 802 {
 803         int status;
 804         struct aac_get_serial *dinfo;
 805         struct fib * cmd_fibcontext;
 806         struct aac_dev * dev;
 807
 808         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
 809
 810         if (!(cmd_fibcontext = aac_fib_alloc(dev)))
 811                 return -ENOMEM;
 812
 813         aac_fib_init(cmd_fibcontext);
 814         dinfo = (struct aac_get_serial *) fib_data(cmd_fibcontext);
 815
 816         dinfo->command = cpu_to_le32(VM_ContainerConfig);
 817         dinfo->type = cpu_to_le32(CT_CID_TO_32BITS_UID);
 818         dinfo->cid = cpu_to_le32(scmd_id(scsicmd));
 819
 820         status = aac_fib_send(ContainerCommand,
 821                   cmd_fibcontext,
 822                   sizeof (struct aac_get_serial),
 823                   FsaNormal,
 824                   0, 1,
 825                   (fib_callback) get_container_serial_callback,
 826                   (void *) scsicmd);
 827
 828         /*
 829          *      Check that the command queued to the controller
 830          */
 831         if (status == -EINPROGRESS) {
 832                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
 833                 return 0;
 834         }
 835
 836         printk(KERN_WARNING "aac_get_container_serial: aac_fib_send failed with status: %d.\n", status);
 837         aac_fib_complete(cmd_fibcontext);
 838         aac_fib_free(cmd_fibcontext);
 839         return -1;
 840 }
 841
 842 /* Function: setinqserial
 843  *
 844  * Arguments: [1] pointer to void [1] int
 845  *
 846  * Purpose: Sets SCSI Unit Serial number.
 847  *          This is a fake. We should read a proper
 848  *          serial number from the container. <SuSE>But
 849  *          without docs it's quite hard to do it :-)
 850  *          So this will have to do in the meantime.</SuSE>
 851  */
 852
 853 static int setinqserial(struct aac_dev *dev, void *data, int cid)
 854 {
 855         /*
 856          *      This breaks array migration.
 857          */
 858         return snprintf((char *)(data), sizeof(struct scsi_inq) - 4, "%08X%02X",
 859                         le32_to_cpu(dev->adapter_info.serial[0]), cid);
 860 }
 861
 862 static void set_sense(u8 *sense_buf, u8 sense_key, u8 sense_code,
 863                       u8 a_sense_code, u8 incorrect_length,
 864                       u8 bit_pointer, u16 field_pointer,
 865                       u32 residue)
 866 {
 867         sense_buf[0] = 0xF0;    /* Sense data valid, err code 70h (current error) */
 868         sense_buf[1] = 0;       /* Segment number, always zero */
 869
 870         if (incorrect_length) {
 871                 sense_buf[2] = sense_key | 0x20;/* Set ILI bit | sense key */
 872                 sense_buf[3] = BYTE3(residue);
 873                 sense_buf[4] = BYTE2(residue);
 874                 sense_buf[5] = BYTE1(residue);
 875                 sense_buf[6] = BYTE0(residue);
 876         } else
 877                 sense_buf[2] = sense_key;       /* Sense key */
 878
 879         if (sense_key == ILLEGAL_REQUEST)
 880                 sense_buf[7] = 10;      /* Additional sense length */
 881         else
 882                 sense_buf[7] = 6;       /* Additional sense length */
 883
 884         sense_buf[12] = sense_code;     /* Additional sense code */
 885         sense_buf[13] = a_sense_code;   /* Additional sense code qualifier */
 886         if (sense_key == ILLEGAL_REQUEST) {
 887                 sense_buf[15] = 0;
 888
 889                 if (sense_code == SENCODE_INVALID_PARAM_FIELD)
 890                         sense_buf[15] = 0x80;/* Std sense key specific field */
 891                 /* Illegal parameter is in the parameter block */
 892
 893                 if (sense_code == SENCODE_INVALID_CDB_FIELD)
 894                         sense_buf[15] = 0xc0;/* Std sense key specific field */
 895                 /* Illegal parameter is in the CDB block */
 896                 sense_buf[15] |= bit_pointer;
 897                 sense_buf[16] = field_pointer >> 8;     /* MSB */
 898                 sense_buf[17] = field_pointer;          /* LSB */
 899         }
 900 }
 901
 902 static int aac_bounds_32(struct aac_dev * dev, struct scsi_cmnd * cmd, u64 lba)
 903 {
 904         if (lba & 0xffffffff00000000LL) {
 905                 int cid = scmd_id(cmd);
 906                 dprintk((KERN_DEBUG "aacraid: Illegal lba\n"));
 907                 cmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 |
 908                         SAM_STAT_CHECK_CONDITION;
 909                 set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
 910                             HARDWARE_ERROR,
 911                             SENCODE_INTERNAL_TARGET_FAILURE,
 912                             ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
 913                             0, 0);
 914                 memcpy(cmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
 915                        min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
 916                              SCSI_SENSE_BUFFERSIZE));
 917                 cmd->scsi_done(cmd);
 918                 return 1;
 919         }
 920         return 0;
 921 }
 922
 923 static int aac_bounds_64(struct aac_dev * dev, struct scsi_cmnd * cmd, u64 lba)
 924 {
 925         return 0;
 926 }
 927
 928 static void io_callback(void *context, struct fib * fibptr);
 929
 930 static int aac_read_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count)
 931 {
 932         u16 fibsize;
 933         struct aac_raw_io *readcmd;
 934         aac_fib_init(fib);
 935         readcmd = (struct aac_raw_io *) fib_data(fib);
 936         readcmd->block[0] = cpu_to_le32((u32)(lba&0xffffffff));
 937         readcmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
 938         readcmd->count = cpu_to_le32(count<<9);
 939         readcmd->cid = cpu_to_le16(scmd_id(cmd));
 940         readcmd->flags = cpu_to_le16(IO_TYPE_READ);
 941         readcmd->bpTotal = 0;
 942         readcmd->bpComplete = 0;
 943
 944         aac_build_sgraw(cmd, &readcmd->sg);
 945         fibsize = sizeof(struct aac_raw_io) + ((le32_to_cpu(readcmd->sg.count) - 1) * sizeof (struct sgentryraw));
 946         BUG_ON(fibsize > (fib->dev->max_fib_size - sizeof(struct aac_fibhdr)));
 947         /*
 948          *      Now send the Fib to the adapter
 949          */
 950         return aac_fib_send(ContainerRawIo,
 951                           fib,
 952                           fibsize,
 953                           FsaNormal,
 954                           0, 1,
 955                           (fib_callback) io_callback,
 956                           (void *) cmd);
 957 }
 958
 959 static int aac_read_block64(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count)
 960 {
 961         u16 fibsize;
 962         struct aac_read64 *readcmd;
 963         aac_fib_init(fib);
 964         readcmd = (struct aac_read64 *) fib_data(fib);
 965         readcmd->command = cpu_to_le32(VM_CtHostRead64);
 966         readcmd->cid = cpu_to_le16(scmd_id(cmd));
 967         readcmd->sector_count = cpu_to_le16(count);
 968         readcmd->block = cpu_to_le32((u32)(lba&0xffffffff));
 969         readcmd->pad   = 0;
 970         readcmd->flags = 0;
 971
 972         aac_build_sg64(cmd, &readcmd->sg);
 973         fibsize = sizeof(struct aac_read64) +
 974                 ((le32_to_cpu(readcmd->sg.count) - 1) *
 975                  sizeof (struct sgentry64));
 976         BUG_ON (fibsize > (fib->dev->max_fib_size -
 977                                 sizeof(struct aac_fibhdr)));
 978         /*
 979          *      Now send the Fib to the adapter
 980          */
 981         return aac_fib_send(ContainerCommand64,
 982                           fib,
 983                           fibsize,
 984                           FsaNormal,
 985                           0, 1,
 986                           (fib_callback) io_callback,
 987                           (void *) cmd);
 988 }
 989
 990 static int aac_read_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count)
 991 {
 992         u16 fibsize;
 993         struct aac_read *readcmd;
 994         aac_fib_init(fib);
 995         readcmd = (struct aac_read *) fib_data(fib);
 996         readcmd->command = cpu_to_le32(VM_CtBlockRead);
 997         readcmd->cid = cpu_to_le32(scmd_id(cmd));
 998         readcmd->block = cpu_to_le32((u32)(lba&0xffffffff));
 999         readcmd->count = cpu_to_le32(count * 512);
1000
1001         aac_build_sg(cmd, &readcmd->sg);
1002         fibsize = sizeof(struct aac_read) +
1003                         ((le32_to_cpu(readcmd->sg.count) - 1) *
1004                          sizeof (struct sgentry));
1005         BUG_ON (fibsize > (fib->dev->max_fib_size -
1006                                 sizeof(struct aac_fibhdr)));
1007         /*
1008          *      Now send the Fib to the adapter
1009          */
1010         return aac_fib_send(ContainerCommand,
1011                           fib,
1012                           fibsize,
1013                           FsaNormal,
1014                           0, 1,
1015                           (fib_callback) io_callback,
1016                           (void *) cmd);
1017 }
1018
1019 static int aac_write_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count, int fua)
1020 {
1021         u16 fibsize;
1022         struct aac_raw_io *writecmd;
1023         aac_fib_init(fib);
1024         writecmd = (struct aac_raw_io *) fib_data(fib);
1025         writecmd->block[0] = cpu_to_le32((u32)(lba&0xffffffff));
1026         writecmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
1027         writecmd->count = cpu_to_le32(count<<9);
1028         writecmd->cid = cpu_to_le16(scmd_id(cmd));
1029         writecmd->flags = (fua && ((aac_cache & 5) != 1) &&
1030           (((aac_cache & 5) != 5) || !fib->dev->cache_protected)) ?
1031                 cpu_to_le16(IO_TYPE_WRITE|IO_SUREWRITE) :
1032                 cpu_to_le16(IO_TYPE_WRITE);
1033         writecmd->bpTotal = 0;
1034         writecmd->bpComplete = 0;
1035
1036         aac_build_sgraw(cmd, &writecmd->sg);
1037         fibsize = sizeof(struct aac_raw_io) + ((le32_to_cpu(writecmd->sg.count) - 1) * sizeof (struct sgentryraw));
1038         BUG_ON(fibsize > (fib->dev->max_fib_size - sizeof(struct aac_fibhdr)));
1039         /*
1040          *      Now send the Fib to the adapter
1041          */
1042         return aac_fib_send(ContainerRawIo,
1043                           fib,
1044                           fibsize,
1045                           FsaNormal,
1046                           0, 1,
1047                           (fib_callback) io_callback,
1048                           (void *) cmd);
1049 }
1050
1051 static int aac_write_block64(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count, int fua)
1052 {
1053         u16 fibsize;
1054         struct aac_write64 *writecmd;
1055         aac_fib_init(fib);
1056         writecmd = (struct aac_write64 *) fib_data(fib);
1057         writecmd->command = cpu_to_le32(VM_CtHostWrite64);
1058         writecmd->cid = cpu_to_le16(scmd_id(cmd));
1059         writecmd->sector_count = cpu_to_le16(count);
1060         writecmd->block = cpu_to_le32((u32)(lba&0xffffffff));
1061         writecmd->pad   = 0;
1062         writecmd->flags = 0;
1063
1064         aac_build_sg64(cmd, &writecmd->sg);
1065         fibsize = sizeof(struct aac_write64) +
1066                 ((le32_to_cpu(writecmd->sg.count) - 1) *
1067                  sizeof (struct sgentry64));
1068         BUG_ON (fibsize > (fib->dev->max_fib_size -
1069                                 sizeof(struct aac_fibhdr)));
1070         /*
1071          *      Now send the Fib to the adapter
1072          */
1073         return aac_fib_send(ContainerCommand64,
1074                           fib,
1075                           fibsize,
1076                           FsaNormal,
1077                           0, 1,
1078                           (fib_callback) io_callback,
1079                           (void *) cmd);
1080 }
1081
1082 static int aac_write_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count, int fua)
1083 {
1084         u16 fibsize;
1085         struct aac_write *writecmd;
1086         aac_fib_init(fib);
1087         writecmd = (struct aac_write *) fib_data(fib);
1088         writecmd->command = cpu_to_le32(VM_CtBlockWrite);
1089         writecmd->cid = cpu_to_le32(scmd_id(cmd));
1090         writecmd->block = cpu_to_le32((u32)(lba&0xffffffff));
1091         writecmd->count = cpu_to_le32(count * 512);
1092         writecmd->sg.count = cpu_to_le32(1);
1093         /* ->stable is not used - it did mean which type of write */
1094
1095         aac_build_sg(cmd, &writecmd->sg);
1096         fibsize = sizeof(struct aac_write) +
1097                 ((le32_to_cpu(writecmd->sg.count) - 1) *
1098                  sizeof (struct sgentry));
1099         BUG_ON (fibsize > (fib->dev->max_fib_size -
1100                                 sizeof(struct aac_fibhdr)));
1101         /*
1102          *      Now send the Fib to the adapter
1103          */
1104         return aac_fib_send(ContainerCommand,
1105                           fib,
1106                           fibsize,
1107                           FsaNormal,
1108                           0, 1,
1109                           (fib_callback) io_callback,
1110                           (void *) cmd);
1111 }
1112
1113 static struct aac_srb * aac_scsi_common(struct fib * fib, struct scsi_cmnd * cmd)
1114 {
1115         struct aac_srb * srbcmd;
1116         u32 flag;
1117         u32 timeout;
1118
1119         aac_fib_init(fib);
1120         switch(cmd->sc_data_direction){
1121         case DMA_TO_DEVICE:
1122                 flag = SRB_DataOut;
1123                 break;
1124         case DMA_BIDIRECTIONAL:
1125                 flag = SRB_DataIn | SRB_DataOut;
1126                 break;
1127         case DMA_FROM_DEVICE:
1128                 flag = SRB_DataIn;
1129                 break;
1130         case DMA_NONE:
1131         default:        /* shuts up some versions of gcc */
1132                 flag = SRB_NoDataXfer;
1133                 break;
1134         }
1135
1136         srbcmd = (struct aac_srb*) fib_data(fib);
1137         srbcmd->function = cpu_to_le32(SRBF_ExecuteScsi);
1138         srbcmd->channel  = cpu_to_le32(aac_logical_to_phys(scmd_channel(cmd)));
1139         srbcmd->id       = cpu_to_le32(scmd_id(cmd));
1140         srbcmd->lun      = cpu_to_le32(cmd->device->lun);
1141         srbcmd->flags    = cpu_to_le32(flag);
1142         timeout = cmd->timeout_per_command/HZ;
1143         if (timeout == 0)
1144                 timeout = 1;
1145         srbcmd->timeout  = cpu_to_le32(timeout);  // timeout in seconds
1146         srbcmd->retry_limit = 0; /* Obsolete parameter */
1147         srbcmd->cdb_size = cpu_to_le32(cmd->cmd_len);
1148         return srbcmd;
1149 }
1150
1151 static void aac_srb_callback(void *context, struct fib * fibptr);
1152
1153 static int aac_scsi_64(struct fib * fib, struct scsi_cmnd * cmd)
1154 {
1155         u16 fibsize;
1156         struct aac_srb * srbcmd = aac_scsi_common(fib, cmd);
1157
1158         aac_build_sg64(cmd, (struct sgmap64*) &srbcmd->sg);
1159         srbcmd->count = cpu_to_le32(scsi_bufflen(cmd));
1160
1161         memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
1162         memcpy(srbcmd->cdb, cmd->cmnd, cmd->cmd_len);
1163         /*
1164          *      Build Scatter/Gather list
1165          */
1166         fibsize = sizeof (struct aac_srb) - sizeof (struct sgentry) +
1167                 ((le32_to_cpu(srbcmd->sg.count) & 0xff) *
1168                  sizeof (struct sgentry64));
1169         BUG_ON (fibsize > (fib->dev->max_fib_size -
1170                                 sizeof(struct aac_fibhdr)));
1171
1172         /*
1173          *      Now send the Fib to the adapter
1174          */
1175         return aac_fib_send(ScsiPortCommand64, fib,
1176                                 fibsize, FsaNormal, 0, 1,
1177                                   (fib_callback) aac_srb_callback,
1178                                   (void *) cmd);
1179 }
1180
1181 static int aac_scsi_32(struct fib * fib, struct scsi_cmnd * cmd)
1182 {
1183         u16 fibsize;
1184         struct aac_srb * srbcmd = aac_scsi_common(fib, cmd);
1185
1186         aac_build_sg(cmd, (struct sgmap*)&srbcmd->sg);
1187         srbcmd->count = cpu_to_le32(scsi_bufflen(cmd));
1188
1189         memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
1190         memcpy(srbcmd->cdb, cmd->cmnd, cmd->cmd_len);
1191         /*
1192          *      Build Scatter/Gather list
1193          */
1194         fibsize = sizeof (struct aac_srb) +
1195                 (((le32_to_cpu(srbcmd->sg.count) & 0xff) - 1) *
1196                  sizeof (struct sgentry));
1197         BUG_ON (fibsize > (fib->dev->max_fib_size -
1198                                 sizeof(struct aac_fibhdr)));
1199
1200         /*
1201          *      Now send the Fib to the adapter
1202          */
1203         return aac_fib_send(ScsiPortCommand, fib, fibsize, FsaNormal, 0, 1,
1204                                   (fib_callback) aac_srb_callback, (void *) cmd);
1205 }
1206
1207 static int aac_scsi_32_64(struct fib * fib, struct scsi_cmnd * cmd)
1208 {
1209         if ((sizeof(dma_addr_t) > 4) &&
1210          (num_physpages > (0xFFFFFFFFULL >> PAGE_SHIFT)) &&
1211          (fib->dev->adapter_info.options & AAC_OPT_SGMAP_HOST64))
1212                 return FAILED;
1213         return aac_scsi_32(fib, cmd);
1214 }
1215
1216 int aac_get_adapter_info(struct aac_dev* dev)
1217 {
1218         struct fib* fibptr;
1219         int rcode;
1220         u32 tmp;
1221         struct aac_adapter_info *info;
1222         struct aac_bus_info *command;
1223         struct aac_bus_info_response *bus_info;
1224
1225         if (!(fibptr = aac_fib_alloc(dev)))
1226                 return -ENOMEM;
1227
1228         aac_fib_init(fibptr);
1229         info = (struct aac_adapter_info *) fib_data(fibptr);
1230         memset(info,0,sizeof(*info));
1231
1232         rcode = aac_fib_send(RequestAdapterInfo,
1233                          fibptr,
1234                          sizeof(*info),
1235                          FsaNormal,
1236                          -1, 1, /* First `interrupt' command uses special wait */
1237                          NULL,
1238                          NULL);
1239
1240         if (rcode < 0) {
1241                 aac_fib_complete(fibptr);
1242                 aac_fib_free(fibptr);
1243                 return rcode;
1244         }
1245         memcpy(&dev->adapter_info, info, sizeof(*info));
1246
1247         if (dev->adapter_info.options & AAC_OPT_SUPPLEMENT_ADAPTER_INFO) {
1248                 struct aac_supplement_adapter_info * sinfo;
1249
1250                 aac_fib_init(fibptr);
1251
1252                 sinfo = (struct aac_supplement_adapter_info *) fib_data(fibptr);
1253
1254                 memset(sinfo,0,sizeof(*sinfo));
1255
1256                 rcode = aac_fib_send(RequestSupplementAdapterInfo,
1257                                  fibptr,
1258                                  sizeof(*sinfo),
1259                                  FsaNormal,
1260                                  1, 1,
1261                                  NULL,
1262                                  NULL);
1263
1264                 if (rcode >= 0)
1265                         memcpy(&dev->supplement_adapter_info, sinfo, sizeof(*sinfo));
1266         }
1267
1268
1269         /*
1270          * GetBusInfo
1271          */
1272
1273         aac_fib_init(fibptr);
1274
1275         bus_info = (struct aac_bus_info_response *) fib_data(fibptr);
1276
1277         memset(bus_info, 0, sizeof(*bus_info));
1278
1279         command = (struct aac_bus_info *)bus_info;
1280
1281         command->Command = cpu_to_le32(VM_Ioctl);
1282         command->ObjType = cpu_to_le32(FT_DRIVE);
1283         command->MethodId = cpu_to_le32(1);
1284         command->CtlCmd = cpu_to_le32(GetBusInfo);
1285
1286         rcode = aac_fib_send(ContainerCommand,
1287                          fibptr,
1288                          sizeof (*bus_info),
1289                          FsaNormal,
1290                          1, 1,
1291                          NULL, NULL);
1292
1293         /* reasoned default */
1294         dev->maximum_num_physicals = 16;
1295         if (rcode >= 0 && le32_to_cpu(bus_info->Status) == ST_OK) {
1296                 dev->maximum_num_physicals = le32_to_cpu(bus_info->TargetsPerBus);
1297                 dev->maximum_num_channels = le32_to_cpu(bus_info->BusCount);
1298         }
1299
1300         if (!dev->in_reset) {
1301                 char buffer[16];
1302                 tmp = le32_to_cpu(dev->adapter_info.kernelrev);
1303                 printk(KERN_INFO "%s%d: kernel %d.%d-%d[%d] %.*s\n",
1304                         dev->name,
1305                         dev->id,
1306                         tmp>>24,
1307                         (tmp>>16)&0xff,
1308                         tmp&0xff,
1309                         le32_to_cpu(dev->adapter_info.kernelbuild),
1310                         (int)sizeof(dev->supplement_adapter_info.BuildDate),
1311                         dev->supplement_adapter_info.BuildDate);
1312                 tmp = le32_to_cpu(dev->adapter_info.monitorrev);
1313                 printk(KERN_INFO "%s%d: monitor %d.%d-%d[%d]\n",
1314                         dev->name, dev->id,
1315                         tmp>>24,(tmp>>16)&0xff,tmp&0xff,
1316                         le32_to_cpu(dev->adapter_info.monitorbuild));
1317                 tmp = le32_to_cpu(dev->adapter_info.biosrev);
1318                 printk(KERN_INFO "%s%d: bios %d.%d-%d[%d]\n",
1319                         dev->name, dev->id,
1320                         tmp>>24,(tmp>>16)&0xff,tmp&0xff,
1321                         le32_to_cpu(dev->adapter_info.biosbuild));
1322                 buffer[0] = '\0';
1323                 if (aac_show_serial_number(
1324                   shost_to_class(dev->scsi_host_ptr), buffer))
1325                         printk(KERN_INFO "%s%d: serial %s",
1326                           dev->name, dev->id, buffer);
1327                 if (dev->supplement_adapter_info.VpdInfo.Tsid[0]) {
1328                         printk(KERN_INFO "%s%d: TSID %.*s\n",
1329                           dev->name, dev->id,
1330                           (int)sizeof(dev->supplement_adapter_info.VpdInfo.Tsid),
1331                           dev->supplement_adapter_info.VpdInfo.Tsid);
1332                 }
1333                 if (!aac_check_reset || ((aac_check_reset != 1) &&
1334                   (dev->supplement_adapter_info.SupportedOptions2 &
1335                   AAC_OPTION_IGNORE_RESET))) {
1336                         printk(KERN_INFO "%s%d: Reset Adapter Ignored\n",
1337                           dev->name, dev->id);
1338                 }
1339         }
1340
1341         dev->cache_protected = 0;
1342         dev->jbod = ((dev->supplement_adapter_info.FeatureBits &
1343                 AAC_FEATURE_JBOD) != 0);
1344         dev->nondasd_support = 0;
1345         dev->raid_scsi_mode = 0;
1346         if(dev->adapter_info.options & AAC_OPT_NONDASD)
1347                 dev->nondasd_support = 1;
1348
1349         /*
1350          * If the firmware supports ROMB RAID/SCSI mode and we are currently
1351          * in RAID/SCSI mode, set the flag. For now if in this mode we will
1352          * force nondasd support on. If we decide to allow the non-dasd flag
1353          * additional changes changes will have to be made to support
1354          * RAID/SCSI.  the function aac_scsi_cmd in this module will have to be
1355          * changed to support the new dev->raid_scsi_mode flag instead of
1356          * leaching off of the dev->nondasd_support flag. Also in linit.c the
1357          * function aac_detect will have to be modified where it sets up the
1358          * max number of channels based on the aac->nondasd_support flag only.
1359          */
1360         if ((dev->adapter_info.options & AAC_OPT_SCSI_MANAGED) &&
1361             (dev->adapter_info.options & AAC_OPT_RAID_SCSI_MODE)) {
1362                 dev->nondasd_support = 1;
1363                 dev->raid_scsi_mode = 1;
1364         }
1365         if (dev->raid_scsi_mode != 0)
1366                 printk(KERN_INFO "%s%d: ROMB RAID/SCSI mode enabled\n",
1367                                 dev->name, dev->id);
1368
1369         if (nondasd != -1)
1370                 dev->nondasd_support = (nondasd!=0);
1371         if(dev->nondasd_support != 0) {
1372                 printk(KERN_INFO "%s%d: Non-DASD support enabled.\n",dev->name, dev->id);
1373         }
1374
1375         dev->dac_support = 0;
1376         if( (sizeof(dma_addr_t) > 4) && (dev->adapter_info.options & AAC_OPT_SGMAP_HOST64)){
1377                 printk(KERN_INFO "%s%d: 64bit support enabled.\n", dev->name, dev->id);
1378                 dev->dac_support = 1;
1379         }
1380
1381         if(dacmode != -1) {
1382                 dev->dac_support = (dacmode!=0);
1383         }
1384         if(dev->dac_support != 0) {
1385                 if (!pci_set_dma_mask(dev->pdev, DMA_64BIT_MASK) &&
1386                         !pci_set_consistent_dma_mask(dev->pdev, DMA_64BIT_MASK)) {
1387                         printk(KERN_INFO"%s%d: 64 Bit DAC enabled\n",
1388                                 dev->name, dev->id);
1389                 } else if (!pci_set_dma_mask(dev->pdev, DMA_32BIT_MASK) &&
1390                         !pci_set_consistent_dma_mask(dev->pdev, DMA_32BIT_MASK)) {
1391                         printk(KERN_INFO"%s%d: DMA mask set failed, 64 Bit DAC disabled\n",
1392                                 dev->name, dev->id);
1393                         dev->dac_support = 0;
1394                 } else {
1395                         printk(KERN_WARNING"%s%d: No suitable DMA available.\n",
1396                                 dev->name, dev->id);
1397                         rcode = -ENOMEM;
1398                 }
1399         }
1400         /*
1401          * Deal with configuring for the individualized limits of each packet
1402          * interface.
1403          */
1404         dev->a_ops.adapter_scsi = (dev->dac_support)
1405           ? ((aac_get_driver_ident(dev->cardtype)->quirks & AAC_QUIRK_SCSI_32)
1406                                 ? aac_scsi_32_64
1407                                 : aac_scsi_64)
1408                                 : aac_scsi_32;
1409         if (dev->raw_io_interface) {
1410                 dev->a_ops.adapter_bounds = (dev->raw_io_64)
1411                                         ? aac_bounds_64
1412                                         : aac_bounds_32;
1413                 dev->a_ops.adapter_read = aac_read_raw_io;
1414                 dev->a_ops.adapter_write = aac_write_raw_io;
1415         } else {
1416                 dev->a_ops.adapter_bounds = aac_bounds_32;
1417                 dev->scsi_host_ptr->sg_tablesize = (dev->max_fib_size -
1418                         sizeof(struct aac_fibhdr) -
1419                         sizeof(struct aac_write) + sizeof(struct sgentry)) /
1420                                 sizeof(struct sgentry);
1421                 if (dev->dac_support) {
1422                         dev->a_ops.adapter_read = aac_read_block64;
1423                         dev->a_ops.adapter_write = aac_write_block64;
1424                         /*
1425                          * 38 scatter gather elements
1426                          */
1427                         dev->scsi_host_ptr->sg_tablesize =
1428                                 (dev->max_fib_size -
1429                                 sizeof(struct aac_fibhdr) -
1430                                 sizeof(struct aac_write64) +
1431                                 sizeof(struct sgentry64)) /
1432                                         sizeof(struct sgentry64);
1433                 } else {
1434                         dev->a_ops.adapter_read = aac_read_block;
1435                         dev->a_ops.adapter_write = aac_write_block;
1436                 }
1437                 dev->scsi_host_ptr->max_sectors = AAC_MAX_32BIT_SGBCOUNT;
1438                 if(!(dev->adapter_info.options & AAC_OPT_NEW_COMM)) {
1439                         /*
1440                          * Worst case size that could cause sg overflow when
1441                          * we break up SG elements that are larger than 64KB.
1442                          * Would be nice if we could tell the SCSI layer what
1443                          * the maximum SG element size can be. Worst case is
1444                          * (sg_tablesize-1) 4KB elements with one 64KB
1445                          * element.
1446                          *      32bit -> 468 or 238KB   64bit -> 424 or 212KB
1447                          */
1448                         dev->scsi_host_ptr->max_sectors =
1449                           (dev->scsi_host_ptr->sg_tablesize * 8) + 112;
1450                 }
1451         }
1452
1453         aac_fib_complete(fibptr);
1454         aac_fib_free(fibptr);
1455
1456         return rcode;
1457 }
1458
1459
1460 static void io_callback(void *context, struct fib * fibptr)
1461 {
1462         struct aac_dev *dev;
1463         struct aac_read_reply *readreply;
1464         struct scsi_cmnd *scsicmd;
1465         u32 cid;
1466
1467         scsicmd = (struct scsi_cmnd *) context;
1468
1469         if (!aac_valid_context(scsicmd, fibptr))
1470                 return;
1471
1472         dev = fibptr->dev;
1473         cid = scmd_id(scsicmd);
1474
1475         if (nblank(dprintk(x))) {
1476                 u64 lba;
1477                 switch (scsicmd->cmnd[0]) {
1478                 case WRITE_6:
1479                 case READ_6:
1480                         lba = ((scsicmd->cmnd[1] & 0x1F) << 16) |
1481                             (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
1482                         break;
1483                 case WRITE_16:
1484                 case READ_16:
1485                         lba = ((u64)scsicmd->cmnd[2] << 56) |
1486                               ((u64)scsicmd->cmnd[3] << 48) |
1487                               ((u64)scsicmd->cmnd[4] << 40) |
1488                               ((u64)scsicmd->cmnd[5] << 32) |
1489                               ((u64)scsicmd->cmnd[6] << 24) |
1490                               (scsicmd->cmnd[7] << 16) |
1491                               (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1492                         break;
1493                 case WRITE_12:
1494                 case READ_12:
1495                         lba = ((u64)scsicmd->cmnd[2] << 24) |
1496                               (scsicmd->cmnd[3] << 16) |
1497                               (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1498                         break;
1499                 default:
1500                         lba = ((u64)scsicmd->cmnd[2] << 24) |
1501                                (scsicmd->cmnd[3] << 16) |
1502                                (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1503                         break;
1504                 }
1505                 printk(KERN_DEBUG
1506                   "io_callback[cpu %d]: lba = %llu, t = %ld.\n",
1507                   smp_processor_id(), (unsigned long long)lba, jiffies);
1508         }
1509
1510         BUG_ON(fibptr == NULL);
1511
1512         scsi_dma_unmap(scsicmd);
1513
1514         readreply = (struct aac_read_reply *)fib_data(fibptr);
1515         if (le32_to_cpu(readreply->status) == ST_OK)
1516                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1517         else {
1518 #ifdef AAC_DETAILED_STATUS_INFO
1519                 printk(KERN_WARNING "io_callback: io failed, status = %d\n",
1520                   le32_to_cpu(readreply->status));
1521 #endif
1522                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1523                 set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
1524                                     HARDWARE_ERROR,
1525                                     SENCODE_INTERNAL_TARGET_FAILURE,
1526                                     ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
1527                                     0, 0);
1528                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1529                        min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
1530                              SCSI_SENSE_BUFFERSIZE));
1531         }
1532         aac_fib_complete(fibptr);
1533         aac_fib_free(fibptr);
1534
1535         scsicmd->scsi_done(scsicmd);
1536 }
1537
1538 static int aac_read(struct scsi_cmnd * scsicmd)
1539 {
1540         u64 lba;
1541         u32 count;
1542         int status;
1543         struct aac_dev *dev;
1544         struct fib * cmd_fibcontext;
1545
1546         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1547         /*
1548          *      Get block address and transfer length
1549          */
1550         switch (scsicmd->cmnd[0]) {
1551         case READ_6:
1552                 dprintk((KERN_DEBUG "aachba: received a read(6) command on id %d.\n", scmd_id(scsicmd)));
1553
1554                 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) |
1555                         (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
1556                 count = scsicmd->cmnd[4];
1557
1558                 if (count == 0)
1559                         count = 256;
1560                 break;
1561         case READ_16:
1562                 dprintk((KERN_DEBUG "aachba: received a read(16) command on id %d.\n", scmd_id(scsicmd)));
1563
1564                 lba =   ((u64)scsicmd->cmnd[2] << 56) |
1565                         ((u64)scsicmd->cmnd[3] << 48) |
1566                         ((u64)scsicmd->cmnd[4] << 40) |
1567                         ((u64)scsicmd->cmnd[5] << 32) |
1568                         ((u64)scsicmd->cmnd[6] << 24) |
1569                         (scsicmd->cmnd[7] << 16) |
1570                         (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1571                 count = (scsicmd->cmnd[10] << 24) |
1572                         (scsicmd->cmnd[11] << 16) |
1573                         (scsicmd->cmnd[12] << 8) | scsicmd->cmnd[13];
1574                 break;
1575         case READ_12:
1576                 dprintk((KERN_DEBUG "aachba: received a read(12) command on id %d.\n", scmd_id(scsicmd)));
1577
1578                 lba = ((u64)scsicmd->cmnd[2] << 24) |
1579                         (scsicmd->cmnd[3] << 16) |
1580                         (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1581                 count = (scsicmd->cmnd[6] << 24) |
1582                         (scsicmd->cmnd[7] << 16) |
1583                         (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1584                 break;
1585         default:
1586                 dprintk((KERN_DEBUG "aachba: received a read(10) command on id %d.\n", scmd_id(scsicmd)));
1587
1588                 lba = ((u64)scsicmd->cmnd[2] << 24) |
1589                         (scsicmd->cmnd[3] << 16) |
1590                         (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1591                 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
1592                 break;
1593         }
1594         dprintk((KERN_DEBUG "aac_read[cpu %d]: lba = %llu, t = %ld.\n",
1595           smp_processor_id(), (unsigned long long)lba, jiffies));
1596         if (aac_adapter_bounds(dev,scsicmd,lba))
1597                 return 0;
1598         /*
1599          *      Alocate and initialize a Fib
1600          */
1601         if (!(cmd_fibcontext = aac_fib_alloc(dev))) {
1602                 return -1;
1603         }
1604
1605         status = aac_adapter_read(cmd_fibcontext, scsicmd, lba, count);
1606
1607         /*
1608          *      Check that the command queued to the controller
1609          */
1610         if (status == -EINPROGRESS) {
1611                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
1612                 return 0;
1613         }
1614
1615         printk(KERN_WARNING "aac_read: aac_fib_send failed with status: %d.\n", status);
1616         /*
1617          *      For some reason, the Fib didn't queue, return QUEUE_FULL
1618          */
1619         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_TASK_SET_FULL;
1620         scsicmd->scsi_done(scsicmd);
1621         aac_fib_complete(cmd_fibcontext);
1622         aac_fib_free(cmd_fibcontext);
1623         return 0;
1624 }
1625
1626 static int aac_write(struct scsi_cmnd * scsicmd)
1627 {
1628         u64 lba;
1629         u32 count;
1630         int fua;
1631         int status;
1632         struct aac_dev *dev;
1633         struct fib * cmd_fibcontext;
1634
1635         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1636         /*
1637          *      Get block address and transfer length
1638          */
1639         if (scsicmd->cmnd[0] == WRITE_6)        /* 6 byte command */
1640         {
1641                 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
1642                 count = scsicmd->cmnd[4];
1643                 if (count == 0)
1644                         count = 256;
1645                 fua = 0;
1646         } else if (scsicmd->cmnd[0] == WRITE_16) { /* 16 byte command */
1647                 dprintk((KERN_DEBUG "aachba: received a write(16) command on id %d.\n", scmd_id(scsicmd)));
1648
1649                 lba =   ((u64)scsicmd->cmnd[2] << 56) |
1650                         ((u64)scsicmd->cmnd[3] << 48) |
1651                         ((u64)scsicmd->cmnd[4] << 40) |
1652                         ((u64)scsicmd->cmnd[5] << 32) |
1653                         ((u64)scsicmd->cmnd[6] << 24) |
1654                         (scsicmd->cmnd[7] << 16) |
1655                         (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1656                 count = (scsicmd->cmnd[10] << 24) | (scsicmd->cmnd[11] << 16) |
1657                         (scsicmd->cmnd[12] << 8) | scsicmd->cmnd[13];
1658                 fua = scsicmd->cmnd[1] & 0x8;
1659         } else if (scsicmd->cmnd[0] == WRITE_12) { /* 12 byte command */
1660                 dprintk((KERN_DEBUG "aachba: received a write(12) command on id %d.\n", scmd_id(scsicmd)));
1661
1662                 lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16)
1663                     | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1664                 count = (scsicmd->cmnd[6] << 24) | (scsicmd->cmnd[7] << 16)
1665                       | (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1666                 fua = scsicmd->cmnd[1] & 0x8;
1667         } else {
1668                 dprintk((KERN_DEBUG "aachba: received a write(10) command on id %d.\n", scmd_id(scsicmd)));
1669                 lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1670                 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
1671                 fua = scsicmd->cmnd[1] & 0x8;
1672         }
1673         dprintk((KERN_DEBUG "aac_write[cpu %d]: lba = %llu, t = %ld.\n",
1674           smp_processor_id(), (unsigned long long)lba, jiffies));
1675         if (aac_adapter_bounds(dev,scsicmd,lba))
1676                 return 0;
1677         /*
1678          *      Allocate and initialize a Fib then setup a BlockWrite command
1679          */
1680         if (!(cmd_fibcontext = aac_fib_alloc(dev))) {
1681                 scsicmd->result = DID_ERROR << 16;
1682                 scsicmd->scsi_done(scsicmd);
1683                 return 0;
1684         }
1685
1686         status = aac_adapter_write(cmd_fibcontext, scsicmd, lba, count, fua);
1687
1688         /*
1689          *      Check that the command queued to the controller
1690          */
1691         if (status == -EINPROGRESS) {
1692                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
1693                 return 0;
1694         }
1695
1696         printk(KERN_WARNING "aac_write: aac_fib_send failed with status: %d\n", status);
1697         /*
1698          *      For some reason, the Fib didn't queue, return QUEUE_FULL
1699          */
1700         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_TASK_SET_FULL;
1701         scsicmd->scsi_done(scsicmd);
1702
1703         aac_fib_complete(cmd_fibcontext);
1704         aac_fib_free(cmd_fibcontext);
1705         return 0;
1706 }
1707
1708 static void synchronize_callback(void *context, struct fib *fibptr)
1709 {
1710         struct aac_synchronize_reply *synchronizereply;
1711         struct scsi_cmnd *cmd;
1712
1713         cmd = context;
1714
1715         if (!aac_valid_context(cmd, fibptr))
1716                 return;
1717
1718         dprintk((KERN_DEBUG "synchronize_callback[cpu %d]: t = %ld.\n",
1719                                 smp_processor_id(), jiffies));
1720         BUG_ON(fibptr == NULL);
1721
1722
1723         synchronizereply = fib_data(fibptr);
1724         if (le32_to_cpu(synchronizereply->status) == CT_OK)
1725                 cmd->result = DID_OK << 16 |
1726                         COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1727         else {
1728                 struct scsi_device *sdev = cmd->device;
1729                 struct aac_dev *dev = fibptr->dev;
1730                 u32 cid = sdev_id(sdev);
1731                 printk(KERN_WARNING
1732                      "synchronize_callback: synchronize failed, status = %d\n",
1733                      le32_to_cpu(synchronizereply->status));
1734                 cmd->result = DID_OK << 16 |
1735                         COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1736                 set_sense((u8 *)&dev->fsa_dev[cid].sense_data,
1737                                     HARDWARE_ERROR,
1738                                     SENCODE_INTERNAL_TARGET_FAILURE,
1739                                     ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
1740                                     0, 0);
1741                 memcpy(cmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1742                        min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
1743                              SCSI_SENSE_BUFFERSIZE));
1744         }
1745
1746         aac_fib_complete(fibptr);
1747         aac_fib_free(fibptr);
1748         cmd->scsi_done(cmd);
1749 }
1750
1751 static int aac_synchronize(struct scsi_cmnd *scsicmd)
1752 {
1753         int status;
1754         struct fib *cmd_fibcontext;
1755         struct aac_synchronize *synchronizecmd;
1756         struct scsi_cmnd *cmd;
1757         struct scsi_device *sdev = scsicmd->device;
1758         int active = 0;
1759         struct aac_dev *aac;
1760         u64 lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) |
1761                 (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1762         u32 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
1763         unsigned long flags;
1764
1765         /*
1766          * Wait for all outstanding queued commands to complete to this
1767          * specific target (block).
1768          */
1769         spin_lock_irqsave(&sdev->list_lock, flags);
1770         list_for_each_entry(cmd, &sdev->cmd_list, list)
1771                 if (cmd->SCp.phase == AAC_OWNER_FIRMWARE) {
1772                         u64 cmnd_lba;
1773                         u32 cmnd_count;
1774
1775                         if (cmd->cmnd[0] == WRITE_6) {
1776                                 cmnd_lba = ((cmd->cmnd[1] & 0x1F) << 16) |
1777                                         (cmd->cmnd[2] << 8) |
1778                                         cmd->cmnd[3];
1779                                 cmnd_count = cmd->cmnd[4];
1780                                 if (cmnd_count == 0)
1781                                         cmnd_count = 256;
1782                         } else if (cmd->cmnd[0] == WRITE_16) {
1783                                 cmnd_lba = ((u64)cmd->cmnd[2] << 56) |
1784                                         ((u64)cmd->cmnd[3] << 48) |
1785                                         ((u64)cmd->cmnd[4] << 40) |
1786                                         ((u64)cmd->cmnd[5] << 32) |
1787                                         ((u64)cmd->cmnd[6] << 24) |
1788                                         (cmd->cmnd[7] << 16) |
1789                                         (cmd->cmnd[8] << 8) |
1790                                         cmd->cmnd[9];
1791                                 cmnd_count = (cmd->cmnd[10] << 24) |
1792                                         (cmd->cmnd[11] << 16) |
1793                                         (cmd->cmnd[12] << 8) |
1794                                         cmd->cmnd[13];
1795                         } else if (cmd->cmnd[0] == WRITE_12) {
1796                                 cmnd_lba = ((u64)cmd->cmnd[2] << 24) |
1797                                         (cmd->cmnd[3] << 16) |
1798                                         (cmd->cmnd[4] << 8) |
1799                                         cmd->cmnd[5];
1800                                 cmnd_count = (cmd->cmnd[6] << 24) |
1801                                         (cmd->cmnd[7] << 16) |
1802                                         (cmd->cmnd[8] << 8) |
1803                                         cmd->cmnd[9];
1804                         } else if (cmd->cmnd[0] == WRITE_10) {
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[7] << 8) |
1810                                         cmd->cmnd[8];
1811                         } else
1812                                 continue;
1813                         if (((cmnd_lba + cmnd_count) < lba) ||
1814                           (count && ((lba + count) < cmnd_lba)))
1815                                 continue;
1816                         ++active;
1817                         break;
1818                 }
1819
1820         spin_unlock_irqrestore(&sdev->list_lock, flags);
1821
1822         /*
1823          *      Yield the processor (requeue for later)
1824          */
1825         if (active)
1826                 return SCSI_MLQUEUE_DEVICE_BUSY;
1827
1828         aac = (struct aac_dev *)sdev->host->hostdata;
1829         if (aac->in_reset)
1830                 return SCSI_MLQUEUE_HOST_BUSY;
1831
1832         /*
1833          *      Allocate and initialize a Fib
1834          */
1835         if (!(cmd_fibcontext = aac_fib_alloc(aac)))
1836                 return SCSI_MLQUEUE_HOST_BUSY;
1837
1838         aac_fib_init(cmd_fibcontext);
1839
1840         synchronizecmd = fib_data(cmd_fibcontext);
1841         synchronizecmd->command = cpu_to_le32(VM_ContainerConfig);
1842         synchronizecmd->type = cpu_to_le32(CT_FLUSH_CACHE);
1843         synchronizecmd->cid = cpu_to_le32(scmd_id(scsicmd));
1844         synchronizecmd->count =
1845              cpu_to_le32(sizeof(((struct aac_synchronize_reply *)NULL)->data));
1846
1847         /*
1848          *      Now send the Fib to the adapter
1849          */
1850         status = aac_fib_send(ContainerCommand,
1851                   cmd_fibcontext,
1852                   sizeof(struct aac_synchronize),
1853                   FsaNormal,
1854                   0, 1,
1855                   (fib_callback)synchronize_callback,
1856                   (void *)scsicmd);
1857
1858         /*
1859          *      Check that the command queued to the controller
1860          */
1861         if (status == -EINPROGRESS) {
1862                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
1863                 return 0;
1864         }
1865
1866         printk(KERN_WARNING
1867                 "aac_synchronize: aac_fib_send failed with status: %d.\n", status);
1868         aac_fib_complete(cmd_fibcontext);
1869         aac_fib_free(cmd_fibcontext);
1870         return SCSI_MLQUEUE_HOST_BUSY;
1871 }
1872
1873 /**
1874  *      aac_scsi_cmd()          -       Process SCSI command
1875  *      @scsicmd:               SCSI command block
1876  *
1877  *      Emulate a SCSI command and queue the required request for the
1878  *      aacraid firmware.
1879  */
1880
1881 int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
1882 {
1883         u32 cid;
1884         struct Scsi_Host *host = scsicmd->device->host;
1885         struct aac_dev *dev = (struct aac_dev *)host->hostdata;
1886         struct fsa_dev_info *fsa_dev_ptr = dev->fsa_dev;
1887
1888         if (fsa_dev_ptr == NULL)
1889                 return -1;
1890         /*
1891          *      If the bus, id or lun is out of range, return fail
1892          *      Test does not apply to ID 16, the pseudo id for the controller
1893          *      itself.
1894          */
1895         cid = scmd_id(scsicmd);
1896         if (cid != host->this_id) {
1897                 if (scmd_channel(scsicmd) == CONTAINER_CHANNEL) {
1898                         if((cid >= dev->maximum_num_containers) ||
1899                                         (scsicmd->device->lun != 0)) {
1900                                 scsicmd->result = DID_NO_CONNECT << 16;
1901                                 scsicmd->scsi_done(scsicmd);
1902                                 return 0;
1903                         }
1904
1905                         /*
1906                          *      If the target container doesn't exist, it may have
1907                          *      been newly created
1908                          */
1909                         if ((fsa_dev_ptr[cid].valid & 1) == 0) {
1910                                 switch (scsicmd->cmnd[0]) {
1911                                 case SERVICE_ACTION_IN:
1912                                         if (!(dev->raw_io_interface) ||
1913                                             !(dev->raw_io_64) ||
1914                                             ((scsicmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16))
1915                                                 break;
1916                                 case INQUIRY:
1917                                 case READ_CAPACITY:
1918                                 case TEST_UNIT_READY:
1919                                         if (dev->in_reset)
1920                                                 return -1;
1921                                         return _aac_probe_container(scsicmd,
1922                                                         aac_probe_container_callback2);
1923                                 default:
1924                                         break;
1925                                 }
1926                         }
1927                 } else {  /* check for physical non-dasd devices */
1928                         if (dev->nondasd_support || expose_physicals ||
1929                                         dev->jbod) {
1930                                 if (dev->in_reset)
1931                                         return -1;
1932                                 return aac_send_srb_fib(scsicmd);
1933                         } else {
1934                                 scsicmd->result = DID_NO_CONNECT << 16;
1935                                 scsicmd->scsi_done(scsicmd);
1936                                 return 0;
1937                         }
1938                 }
1939         }
1940         /*
1941          * else Command for the controller itself
1942          */
1943         else if ((scsicmd->cmnd[0] != INQUIRY) &&       /* only INQUIRY & TUR cmnd supported for controller */
1944                 (scsicmd->cmnd[0] != TEST_UNIT_READY))
1945         {
1946                 dprintk((KERN_WARNING "Only INQUIRY & TUR command supported for controller, rcvd = 0x%x.\n", scsicmd->cmnd[0]));
1947                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1948                 set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
1949                             ILLEGAL_REQUEST,
1950                             SENCODE_INVALID_COMMAND,
1951                             ASENCODE_INVALID_COMMAND, 0, 0, 0, 0);
1952                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1953                        min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
1954                              SCSI_SENSE_BUFFERSIZE));
1955                 scsicmd->scsi_done(scsicmd);
1956                 return 0;
1957         }
1958
1959
1960         /* Handle commands here that don't really require going out to the adapter */
1961         switch (scsicmd->cmnd[0]) {
1962         case INQUIRY:
1963         {
1964                 struct inquiry_data inq_data;
1965
1966                 dprintk((KERN_DEBUG "INQUIRY command, ID: %d.\n", cid));
1967                 memset(&inq_data, 0, sizeof (struct inquiry_data));
1968
1969                 if (scsicmd->cmnd[1] & 0x1) {
1970                         char *arr = (char *)&inq_data;
1971
1972                         /* EVPD bit set */
1973                         arr[0] = (scmd_id(scsicmd) == host->this_id) ?
1974                           INQD_PDT_PROC : INQD_PDT_DA;
1975                         if (scsicmd->cmnd[2] == 0) {
1976                                 /* supported vital product data pages */
1977                                 arr[3] = 2;
1978                                 arr[4] = 0x0;
1979                                 arr[5] = 0x80;
1980                                 arr[1] = scsicmd->cmnd[2];
1981                                 aac_internal_transfer(scsicmd, &inq_data, 0,
1982                                   sizeof(inq_data));
1983                                 scsicmd->result = DID_OK << 16 |
1984                                   COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1985                         } else if (scsicmd->cmnd[2] == 0x80) {
1986                                 /* unit serial number page */
1987                                 arr[3] = setinqserial(dev, &arr[4],
1988                                   scmd_id(scsicmd));
1989                                 arr[1] = scsicmd->cmnd[2];
1990                                 aac_internal_transfer(scsicmd, &inq_data, 0,
1991                                   sizeof(inq_data));
1992                                 return aac_get_container_serial(scsicmd);
1993                         } else {
1994                                 /* vpd page not implemented */
1995                                 scsicmd->result = DID_OK << 16 |
1996                                   COMMAND_COMPLETE << 8 |
1997                                   SAM_STAT_CHECK_CONDITION;
1998                                 set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
1999                                   ILLEGAL_REQUEST,
2000                                   SENCODE_INVALID_CDB_FIELD,
2001                                   ASENCODE_NO_SENSE, 0, 7, 2, 0);
2002                                 memcpy(scsicmd->sense_buffer,
2003                                   &dev->fsa_dev[cid].sense_data,
2004                                   min_t(size_t,
2005                                         sizeof(dev->fsa_dev[cid].sense_data),
2006                                         SCSI_SENSE_BUFFERSIZE));
2007                         }
2008                         scsicmd->scsi_done(scsicmd);
2009                         return 0;
2010                 }
2011                 inq_data.inqd_ver = 2;  /* claim compliance to SCSI-2 */
2012                 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 */
2013                 inq_data.inqd_len = 31;
2014                 /*Format for "pad2" is  RelAdr | WBus32 | WBus16 |  Sync  | Linked |Reserved| CmdQue | SftRe */
2015                 inq_data.inqd_pad2= 0x32 ;       /*WBus16|Sync|CmdQue */
2016                 /*
2017                  *      Set the Vendor, Product, and Revision Level
2018                  *      see: <vendor>.c i.e. aac.c
2019                  */
2020                 if (cid == host->this_id) {
2021                         setinqstr(dev, (void *) (inq_data.inqd_vid), ARRAY_SIZE(container_types));
2022                         inq_data.inqd_pdt = INQD_PDT_PROC;      /* Processor device */
2023                         aac_internal_transfer(scsicmd, &inq_data, 0, sizeof(inq_data));
2024                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2025                         scsicmd->scsi_done(scsicmd);
2026                         return 0;
2027                 }
2028                 if (dev->in_reset)
2029                         return -1;
2030                 setinqstr(dev, (void *) (inq_data.inqd_vid), fsa_dev_ptr[cid].type);
2031                 inq_data.inqd_pdt = INQD_PDT_DA;        /* Direct/random access device */
2032                 aac_internal_transfer(scsicmd, &inq_data, 0, sizeof(inq_data));
2033                 return aac_get_container_name(scsicmd);
2034         }
2035         case SERVICE_ACTION_IN:
2036                 if (!(dev->raw_io_interface) ||
2037                     !(dev->raw_io_64) ||
2038                     ((scsicmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16))
2039                         break;
2040         {
2041                 u64 capacity;
2042                 char cp[13];
2043
2044                 dprintk((KERN_DEBUG "READ CAPACITY_16 command.\n"));
2045                 capacity = fsa_dev_ptr[cid].size - 1;
2046                 cp[0] = (capacity >> 56) & 0xff;
2047                 cp[1] = (capacity >> 48) & 0xff;
2048                 cp[2] = (capacity >> 40) & 0xff;
2049                 cp[3] = (capacity >> 32) & 0xff;
2050                 cp[4] = (capacity >> 24) & 0xff;
2051                 cp[5] = (capacity >> 16) & 0xff;
2052                 cp[6] = (capacity >> 8) & 0xff;
2053                 cp[7] = (capacity >> 0) & 0xff;
2054                 cp[8] = 0;
2055                 cp[9] = 0;
2056                 cp[10] = 2;
2057                 cp[11] = 0;
2058                 cp[12] = 0;
2059                 aac_internal_transfer(scsicmd, cp, 0,
2060                   min_t(size_t, scsicmd->cmnd[13], sizeof(cp)));
2061                 if (sizeof(cp) < scsicmd->cmnd[13]) {
2062                         unsigned int len, offset = sizeof(cp);
2063
2064                         memset(cp, 0, offset);
2065                         do {
2066                                 len = min_t(size_t, scsicmd->cmnd[13] - offset,
2067                                                 sizeof(cp));
2068                                 aac_internal_transfer(scsicmd, cp, offset, len);
2069                         } while ((offset += len) < scsicmd->cmnd[13]);
2070                 }
2071
2072                 /* Do not cache partition table for arrays */
2073                 scsicmd->device->removable = 1;
2074
2075                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2076                 scsicmd->scsi_done(scsicmd);
2077
2078                 return 0;
2079         }
2080
2081         case READ_CAPACITY:
2082         {
2083                 u32 capacity;
2084                 char cp[8];
2085
2086                 dprintk((KERN_DEBUG "READ CAPACITY command.\n"));
2087                 if (fsa_dev_ptr[cid].size <= 0x100000000ULL)
2088                         capacity = fsa_dev_ptr[cid].size - 1;
2089                 else
2090                         capacity = (u32)-1;
2091
2092                 cp[0] = (capacity >> 24) & 0xff;
2093                 cp[1] = (capacity >> 16) & 0xff;
2094                 cp[2] = (capacity >> 8) & 0xff;
2095                 cp[3] = (capacity >> 0) & 0xff;
2096                 cp[4] = 0;
2097                 cp[5] = 0;
2098                 cp[6] = 2;
2099                 cp[7] = 0;
2100                 aac_internal_transfer(scsicmd, cp, 0, sizeof(cp));
2101                 /* Do not cache partition table for arrays */
2102                 scsicmd->device->removable = 1;
2103
2104                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2105                 scsicmd->scsi_done(scsicmd);
2106
2107                 return 0;
2108         }
2109
2110         case MODE_SENSE:
2111         {
2112                 char mode_buf[7];
2113                 int mode_buf_length = 4;
2114
2115                 dprintk((KERN_DEBUG "MODE SENSE command.\n"));
2116                 mode_buf[0] = 3;        /* Mode data length */
2117                 mode_buf[1] = 0;        /* Medium type - default */
2118                 mode_buf[2] = 0;        /* Device-specific param,
2119                                            bit 8: 0/1 = write enabled/protected
2120                                            bit 4: 0/1 = FUA enabled */
2121                 if (dev->raw_io_interface && ((aac_cache & 5) != 1))
2122                         mode_buf[2] = 0x10;
2123                 mode_buf[3] = 0;        /* Block descriptor length */
2124                 if (((scsicmd->cmnd[2] & 0x3f) == 8) ||
2125                   ((scsicmd->cmnd[2] & 0x3f) == 0x3f)) {
2126                         mode_buf[0] = 6;
2127                         mode_buf[4] = 8;
2128                         mode_buf[5] = 1;
2129                         mode_buf[6] = ((aac_cache & 6) == 2)
2130                                 ? 0 : 0x04; /* WCE */
2131                         mode_buf_length = 7;
2132                         if (mode_buf_length > scsicmd->cmnd[4])
2133                                 mode_buf_length = scsicmd->cmnd[4];
2134                 }
2135                 aac_internal_transfer(scsicmd, mode_buf, 0, mode_buf_length);
2136                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2137                 scsicmd->scsi_done(scsicmd);
2138
2139                 return 0;
2140         }
2141         case MODE_SENSE_10:
2142         {
2143                 char mode_buf[11];
2144                 int mode_buf_length = 8;
2145
2146                 dprintk((KERN_DEBUG "MODE SENSE 10 byte command.\n"));
2147                 mode_buf[0] = 0;        /* Mode data length (MSB) */
2148                 mode_buf[1] = 6;        /* Mode data length (LSB) */
2149                 mode_buf[2] = 0;        /* Medium type - default */
2150                 mode_buf[3] = 0;        /* Device-specific param,
2151                                            bit 8: 0/1 = write enabled/protected
2152                                            bit 4: 0/1 = FUA enabled */
2153                 if (dev->raw_io_interface && ((aac_cache & 5) != 1))
2154                         mode_buf[3] = 0x10;
2155                 mode_buf[4] = 0;        /* reserved */
2156                 mode_buf[5] = 0;        /* reserved */
2157                 mode_buf[6] = 0;        /* Block descriptor length (MSB) */
2158                 mode_buf[7] = 0;        /* Block descriptor length (LSB) */
2159                 if (((scsicmd->cmnd[2] & 0x3f) == 8) ||
2160                   ((scsicmd->cmnd[2] & 0x3f) == 0x3f)) {
2161                         mode_buf[1] = 9;
2162                         mode_buf[8] = 8;
2163                         mode_buf[9] = 1;
2164                         mode_buf[10] = ((aac_cache & 6) == 2)
2165                                 ? 0 : 0x04; /* WCE */
2166                         mode_buf_length = 11;
2167                         if (mode_buf_length > scsicmd->cmnd[8])
2168                                 mode_buf_length = scsicmd->cmnd[8];
2169                 }
2170                 aac_internal_transfer(scsicmd, mode_buf, 0, mode_buf_length);
2171
2172                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2173                 scsicmd->scsi_done(scsicmd);
2174
2175                 return 0;
2176         }
2177         case REQUEST_SENSE:
2178                 dprintk((KERN_DEBUG "REQUEST SENSE command.\n"));
2179                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data, sizeof (struct sense_data));
2180                 memset(&dev->fsa_dev[cid].sense_data, 0, sizeof (struct sense_data));
2181                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2182                 scsicmd->scsi_done(scsicmd);
2183                 return 0;
2184
2185         case ALLOW_MEDIUM_REMOVAL:
2186                 dprintk((KERN_DEBUG "LOCK command.\n"));
2187                 if (scsicmd->cmnd[4])
2188                         fsa_dev_ptr[cid].locked = 1;
2189                 else
2190                         fsa_dev_ptr[cid].locked = 0;
2191
2192                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2193                 scsicmd->scsi_done(scsicmd);
2194                 return 0;
2195         /*
2196          *      These commands are all No-Ops
2197          */
2198         case TEST_UNIT_READY:
2199         case RESERVE:
2200         case RELEASE:
2201         case REZERO_UNIT:
2202         case REASSIGN_BLOCKS:
2203         case SEEK_10:
2204         case START_STOP:
2205                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2206                 scsicmd->scsi_done(scsicmd);
2207                 return 0;
2208         }
2209
2210         switch (scsicmd->cmnd[0])
2211         {
2212                 case READ_6:
2213                 case READ_10:
2214                 case READ_12:
2215                 case READ_16:
2216                         if (dev->in_reset)
2217                                 return -1;
2218                         /*
2219                          *      Hack to keep track of ordinal number of the device that
2220                          *      corresponds to a container. Needed to convert
2221                          *      containers to /dev/sd device names
2222                          */
2223
2224                         if (scsicmd->request->rq_disk)
2225                                 strlcpy(fsa_dev_ptr[cid].devname,
2226                                 scsicmd->request->rq_disk->disk_name,
2227                                 min(sizeof(fsa_dev_ptr[cid].devname),
2228                                 sizeof(scsicmd->request->rq_disk->disk_name) + 1));
2229
2230                         return aac_read(scsicmd);
2231
2232                 case WRITE_6:
2233                 case WRITE_10:
2234                 case WRITE_12:
2235                 case WRITE_16:
2236                         if (dev->in_reset)
2237                                 return -1;
2238                         return aac_write(scsicmd);
2239
2240                 case SYNCHRONIZE_CACHE:
2241                         if (((aac_cache & 6) == 6) && dev->cache_protected) {
2242                                 scsicmd->result = DID_OK << 16 |
2243                                         COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2244                                 scsicmd->scsi_done(scsicmd);
2245                                 return 0;
2246                         }
2247                         /* Issue FIB to tell Firmware to flush it's cache */
2248                         if ((aac_cache & 6) != 2)
2249                                 return aac_synchronize(scsicmd);
2250                         /* FALLTHRU */
2251                 default:
2252                         /*
2253                          *      Unhandled commands
2254                          */
2255                         dprintk((KERN_WARNING "Unhandled SCSI Command: 0x%x.\n", scsicmd->cmnd[0]));
2256                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
2257                         set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
2258                                 ILLEGAL_REQUEST, SENCODE_INVALID_COMMAND,
2259                                 ASENCODE_INVALID_COMMAND, 0, 0, 0, 0);
2260                         memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
2261                                 min_t(size_t,
2262                                       sizeof(dev->fsa_dev[cid].sense_data),
2263                                       SCSI_SENSE_BUFFERSIZE));
2264                         scsicmd->scsi_done(scsicmd);
2265                         return 0;
2266         }
2267 }
2268
2269 static int query_disk(struct aac_dev *dev, void __user *arg)
2270 {
2271         struct aac_query_disk qd;
2272         struct fsa_dev_info *fsa_dev_ptr;
2273
2274         fsa_dev_ptr = dev->fsa_dev;
2275         if (!fsa_dev_ptr)
2276                 return -EBUSY;
2277         if (copy_from_user(&qd, arg, sizeof (struct aac_query_disk)))
2278                 return -EFAULT;
2279         if (qd.cnum == -1)
2280                 qd.cnum = qd.id;
2281         else if ((qd.bus == -1) && (qd.id == -1) && (qd.lun == -1))
2282         {
2283                 if (qd.cnum < 0 || qd.cnum >= dev->maximum_num_containers)
2284                         return -EINVAL;
2285                 qd.instance = dev->scsi_host_ptr->host_no;
2286                 qd.bus = 0;
2287                 qd.id = CONTAINER_TO_ID(qd.cnum);
2288                 qd.lun = CONTAINER_TO_LUN(qd.cnum);
2289         }
2290         else return -EINVAL;
2291
2292         qd.valid = fsa_dev_ptr[qd.cnum].valid != 0;
2293         qd.locked = fsa_dev_ptr[qd.cnum].locked;
2294         qd.deleted = fsa_dev_ptr[qd.cnum].deleted;
2295
2296         if (fsa_dev_ptr[qd.cnum].devname[0] == '\0')
2297                 qd.unmapped = 1;
2298         else
2299                 qd.unmapped = 0;
2300
2301         strlcpy(qd.name, fsa_dev_ptr[qd.cnum].devname,
2302           min(sizeof(qd.name), sizeof(fsa_dev_ptr[qd.cnum].devname) + 1));
2303
2304         if (copy_to_user(arg, &qd, sizeof (struct aac_query_disk)))
2305                 return -EFAULT;
2306         return 0;
2307 }
2308
2309 static int force_delete_disk(struct aac_dev *dev, void __user *arg)
2310 {
2311         struct aac_delete_disk dd;
2312         struct fsa_dev_info *fsa_dev_ptr;
2313
2314         fsa_dev_ptr = dev->fsa_dev;
2315         if (!fsa_dev_ptr)
2316                 return -EBUSY;
2317
2318         if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
2319                 return -EFAULT;
2320
2321         if (dd.cnum >= dev->maximum_num_containers)
2322                 return -EINVAL;
2323         /*
2324          *      Mark this container as being deleted.
2325          */
2326         fsa_dev_ptr[dd.cnum].deleted = 1;
2327         /*
2328          *      Mark the container as no longer valid
2329          */
2330         fsa_dev_ptr[dd.cnum].valid = 0;
2331         return 0;
2332 }
2333
2334 static int delete_disk(struct aac_dev *dev, void __user *arg)
2335 {
2336         struct aac_delete_disk dd;
2337         struct fsa_dev_info *fsa_dev_ptr;
2338
2339         fsa_dev_ptr = dev->fsa_dev;
2340         if (!fsa_dev_ptr)
2341                 return -EBUSY;
2342
2343         if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
2344                 return -EFAULT;
2345
2346         if (dd.cnum >= dev->maximum_num_containers)
2347                 return -EINVAL;
2348         /*
2349          *      If the container is locked, it can not be deleted by the API.
2350          */
2351         if (fsa_dev_ptr[dd.cnum].locked)
2352                 return -EBUSY;
2353         else {
2354                 /*
2355                  *      Mark the container as no longer being valid.
2356                  */
2357                 fsa_dev_ptr[dd.cnum].valid = 0;
2358                 fsa_dev_ptr[dd.cnum].devname[0] = '\0';
2359                 return 0;
2360         }
2361 }
2362
2363 int aac_dev_ioctl(struct aac_dev *dev, int cmd, void __user *arg)
2364 {
2365         switch (cmd) {
2366         case FSACTL_QUERY_DISK:
2367                 return query_disk(dev, arg);
2368         case FSACTL_DELETE_DISK:
2369                 return delete_disk(dev, arg);
2370         case FSACTL_FORCE_DELETE_DISK:
2371                 return force_delete_disk(dev, arg);
2372         case FSACTL_GET_CONTAINERS:
2373                 return aac_get_containers(dev);
2374         default:
2375                 return -ENOTTY;
2376         }
2377 }
2378
2379 /**
2380  *
2381  * aac_srb_callback
2382  * @context: the context set in the fib - here it is scsi cmd
2383  * @fibptr: pointer to the fib
2384  *
2385  * Handles the completion of a scsi command to a non dasd device
2386  *
2387  */
2388
2389 static void aac_srb_callback(void *context, struct fib * fibptr)
2390 {
2391         struct aac_dev *dev;
2392         struct aac_srb_reply *srbreply;
2393         struct scsi_cmnd *scsicmd;
2394
2395         scsicmd = (struct scsi_cmnd *) context;
2396
2397         if (!aac_valid_context(scsicmd, fibptr))
2398                 return;
2399
2400         BUG_ON(fibptr == NULL);
2401
2402         dev = fibptr->dev;
2403
2404         srbreply = (struct aac_srb_reply *) fib_data(fibptr);
2405
2406         scsicmd->sense_buffer[0] = '\0';  /* Initialize sense valid flag to false */
2407         /*
2408          *      Calculate resid for sg
2409          */
2410
2411         scsi_set_resid(scsicmd, scsi_bufflen(scsicmd)
2412                        - le32_to_cpu(srbreply->data_xfer_length));
2413
2414         scsi_dma_unmap(scsicmd);
2415
2416         /*
2417          * First check the fib status
2418          */
2419
2420         if (le32_to_cpu(srbreply->status) != ST_OK){
2421                 int len;
2422                 printk(KERN_WARNING "aac_srb_callback: srb failed, status = %d\n", le32_to_cpu(srbreply->status));
2423                 len = min_t(u32, le32_to_cpu(srbreply->sense_data_size),
2424                             SCSI_SENSE_BUFFERSIZE);
2425                 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
2426                 memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
2427         }
2428
2429         /*
2430          * Next check the srb status
2431          */
2432         switch( (le32_to_cpu(srbreply->srb_status))&0x3f){
2433         case SRB_STATUS_ERROR_RECOVERY:
2434         case SRB_STATUS_PENDING:
2435         case SRB_STATUS_SUCCESS:
2436                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
2437                 break;
2438         case SRB_STATUS_DATA_OVERRUN:
2439                 switch(scsicmd->cmnd[0]){
2440                 case  READ_6:
2441                 case  WRITE_6:
2442                 case  READ_10:
2443                 case  WRITE_10:
2444                 case  READ_12:
2445                 case  WRITE_12:
2446                 case  READ_16:
2447                 case  WRITE_16:
2448                         if (le32_to_cpu(srbreply->data_xfer_length) < scsicmd->underflow) {
2449                                 printk(KERN_WARNING"aacraid: SCSI CMD underflow\n");
2450                         } else {
2451                                 printk(KERN_WARNING"aacraid: SCSI CMD Data Overrun\n");
2452                         }
2453                         scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
2454                         break;
2455                 case INQUIRY: {
2456                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
2457                         break;
2458                 }
2459                 default:
2460                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
2461                         break;
2462                 }
2463                 break;
2464         case SRB_STATUS_ABORTED:
2465                 scsicmd->result = DID_ABORT << 16 | ABORT << 8;
2466                 break;
2467         case SRB_STATUS_ABORT_FAILED:
2468                 // Not sure about this one - but assuming the hba was trying to abort for some reason
2469                 scsicmd->result = DID_ERROR << 16 | ABORT << 8;
2470                 break;
2471         case SRB_STATUS_PARITY_ERROR:
2472                 scsicmd->result = DID_PARITY << 16 | MSG_PARITY_ERROR << 8;
2473                 break;
2474         case SRB_STATUS_NO_DEVICE:
2475         case SRB_STATUS_INVALID_PATH_ID:
2476         case SRB_STATUS_INVALID_TARGET_ID:
2477         case SRB_STATUS_INVALID_LUN:
2478         case SRB_STATUS_SELECTION_TIMEOUT:
2479                 scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8;
2480                 break;
2481
2482         case SRB_STATUS_COMMAND_TIMEOUT:
2483         case SRB_STATUS_TIMEOUT:
2484                 scsicmd->result = DID_TIME_OUT << 16 | COMMAND_COMPLETE << 8;
2485                 break;
2486
2487         case SRB_STATUS_BUSY:
2488                 scsicmd->result = DID_BUS_BUSY << 16 | COMMAND_COMPLETE << 8;
2489                 break;
2490
2491         case SRB_STATUS_BUS_RESET:
2492                 scsicmd->result = DID_RESET << 16 | COMMAND_COMPLETE << 8;
2493                 break;
2494
2495         case SRB_STATUS_MESSAGE_REJECTED:
2496                 scsicmd->result = DID_ERROR << 16 | MESSAGE_REJECT << 8;
2497                 break;
2498         case SRB_STATUS_REQUEST_FLUSHED:
2499         case SRB_STATUS_ERROR:
2500         case SRB_STATUS_INVALID_REQUEST:
2501         case SRB_STATUS_REQUEST_SENSE_FAILED:
2502         case SRB_STATUS_NO_HBA:
2503         case SRB_STATUS_UNEXPECTED_BUS_FREE:
2504         case SRB_STATUS_PHASE_SEQUENCE_FAILURE:
2505         case SRB_STATUS_BAD_SRB_BLOCK_LENGTH:
2506         case SRB_STATUS_DELAYED_RETRY:
2507         case SRB_STATUS_BAD_FUNCTION:
2508         case SRB_STATUS_NOT_STARTED:
2509         case SRB_STATUS_NOT_IN_USE:
2510         case SRB_STATUS_FORCE_ABORT:
2511         case SRB_STATUS_DOMAIN_VALIDATION_FAIL:
2512         default:
2513 #ifdef AAC_DETAILED_STATUS_INFO
2514                 printk("aacraid: SRB ERROR(%u) %s scsi cmd 0x%x - scsi status 0x%x\n",
2515                         le32_to_cpu(srbreply->srb_status) & 0x3F,
2516                         aac_get_status_string(
2517                                 le32_to_cpu(srbreply->srb_status) & 0x3F),
2518                         scsicmd->cmnd[0],
2519                         le32_to_cpu(srbreply->scsi_status));
2520 #endif
2521                 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
2522                 break;
2523         }
2524         if (le32_to_cpu(srbreply->scsi_status) == SAM_STAT_CHECK_CONDITION) {
2525                 int len;
2526                 scsicmd->result |= SAM_STAT_CHECK_CONDITION;
2527                 len = min_t(u32, le32_to_cpu(srbreply->sense_data_size),
2528                             SCSI_SENSE_BUFFERSIZE);
2529 #ifdef AAC_DETAILED_STATUS_INFO
2530                 printk(KERN_WARNING "aac_srb_callback: check condition, status = %d len=%d\n",
2531                                         le32_to_cpu(srbreply->status), len);
2532 #endif
2533                 memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
2534         }
2535         /*
2536          * OR in the scsi status (already shifted up a bit)
2537          */
2538         scsicmd->result |= le32_to_cpu(srbreply->scsi_status);
2539
2540         aac_fib_complete(fibptr);
2541         aac_fib_free(fibptr);
2542         scsicmd->scsi_done(scsicmd);
2543 }
2544
2545 /**
2546  *
2547  * aac_send_scb_fib
2548  * @scsicmd: the scsi command block
2549  *
2550  * This routine will form a FIB and fill in the aac_srb from the
2551  * scsicmd passed in.
2552  */
2553
2554 static int aac_send_srb_fib(struct scsi_cmnd* scsicmd)
2555 {
2556         struct fib* cmd_fibcontext;
2557         struct aac_dev* dev;
2558         int status;
2559
2560         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2561         if (scmd_id(scsicmd) >= dev->maximum_num_physicals ||
2562                         scsicmd->device->lun > 7) {
2563                 scsicmd->result = DID_NO_CONNECT << 16;
2564                 scsicmd->scsi_done(scsicmd);
2565                 return 0;
2566         }
2567
2568         /*
2569          *      Allocate and initialize a Fib then setup a BlockWrite command
2570          */
2571         if (!(cmd_fibcontext = aac_fib_alloc(dev))) {
2572                 return -1;
2573         }
2574         status = aac_adapter_scsi(cmd_fibcontext, scsicmd);
2575
2576         /*
2577          *      Check that the command queued to the controller
2578          */
2579         if (status == -EINPROGRESS) {
2580                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
2581                 return 0;
2582         }
2583
2584         printk(KERN_WARNING "aac_srb: aac_fib_send failed with status: %d\n", status);
2585         aac_fib_complete(cmd_fibcontext);
2586         aac_fib_free(cmd_fibcontext);
2587
2588         return -1;
2589 }
2590
2591 static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* psg)
2592 {
2593         struct aac_dev *dev;
2594         unsigned long byte_count = 0;
2595         int nseg;
2596
2597         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2598         // Get rid of old data
2599         psg->count = 0;
2600         psg->sg[0].addr = 0;
2601         psg->sg[0].count = 0;
2602
2603         nseg = scsi_dma_map(scsicmd);
2604         BUG_ON(nseg < 0);
2605         if (nseg) {
2606                 struct scatterlist *sg;
2607                 int i;
2608
2609                 psg->count = cpu_to_le32(nseg);
2610
2611                 scsi_for_each_sg(scsicmd, sg, nseg, i) {
2612                         psg->sg[i].addr = cpu_to_le32(sg_dma_address(sg));
2613                         psg->sg[i].count = cpu_to_le32(sg_dma_len(sg));
2614                         byte_count += sg_dma_len(sg);
2615                 }
2616                 /* hba wants the size to be exact */
2617                 if (byte_count > scsi_bufflen(scsicmd)) {
2618                         u32 temp = le32_to_cpu(psg->sg[i-1].count) -
2619                                 (byte_count - scsi_bufflen(scsicmd));
2620                         psg->sg[i-1].count = cpu_to_le32(temp);
2621                         byte_count = scsi_bufflen(scsicmd);
2622                 }
2623                 /* Check for command underflow */
2624                 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2625                         printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2626                                         byte_count, scsicmd->underflow);
2627                 }
2628         }
2629         return byte_count;
2630 }
2631
2632
2633 static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* psg)
2634 {
2635         struct aac_dev *dev;
2636         unsigned long byte_count = 0;
2637         u64 addr;
2638         int nseg;
2639
2640         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2641         // Get rid of old data
2642         psg->count = 0;
2643         psg->sg[0].addr[0] = 0;
2644         psg->sg[0].addr[1] = 0;
2645         psg->sg[0].count = 0;
2646
2647         nseg = scsi_dma_map(scsicmd);
2648         BUG_ON(nseg < 0);
2649         if (nseg) {
2650                 struct scatterlist *sg;
2651                 int i;
2652
2653                 scsi_for_each_sg(scsicmd, sg, nseg, i) {
2654                         int count = sg_dma_len(sg);
2655                         addr = sg_dma_address(sg);
2656                         psg->sg[i].addr[0] = cpu_to_le32(addr & 0xffffffff);
2657                         psg->sg[i].addr[1] = cpu_to_le32(addr>>32);
2658                         psg->sg[i].count = cpu_to_le32(count);
2659                         byte_count += count;
2660                 }
2661                 psg->count = cpu_to_le32(nseg);
2662                 /* hba wants the size to be exact */
2663                 if (byte_count > scsi_bufflen(scsicmd)) {
2664                         u32 temp = le32_to_cpu(psg->sg[i-1].count) -
2665                                 (byte_count - scsi_bufflen(scsicmd));
2666                         psg->sg[i-1].count = cpu_to_le32(temp);
2667                         byte_count = scsi_bufflen(scsicmd);
2668                 }
2669                 /* Check for command underflow */
2670                 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2671                         printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2672                                         byte_count, scsicmd->underflow);
2673                 }
2674         }
2675         return byte_count;
2676 }
2677
2678 static unsigned long aac_build_sgraw(struct scsi_cmnd* scsicmd, struct sgmapraw* psg)
2679 {
2680         unsigned long byte_count = 0;
2681         int nseg;
2682
2683         // Get rid of old data
2684         psg->count = 0;
2685         psg->sg[0].next = 0;
2686         psg->sg[0].prev = 0;
2687         psg->sg[0].addr[0] = 0;
2688         psg->sg[0].addr[1] = 0;
2689         psg->sg[0].count = 0;
2690         psg->sg[0].flags = 0;
2691
2692         nseg = scsi_dma_map(scsicmd);
2693         BUG_ON(nseg < 0);
2694         if (nseg) {
2695                 struct scatterlist *sg;
2696                 int i;
2697
2698                 scsi_for_each_sg(scsicmd, sg, nseg, i) {
2699                         int count = sg_dma_len(sg);
2700                         u64 addr = sg_dma_address(sg);
2701                         psg->sg[i].next = 0;
2702                         psg->sg[i].prev = 0;
2703                         psg->sg[i].addr[1] = cpu_to_le32((u32)(addr>>32));
2704                         psg->sg[i].addr[0] = cpu_to_le32((u32)(addr & 0xffffffff));
2705                         psg->sg[i].count = cpu_to_le32(count);
2706                         psg->sg[i].flags = 0;
2707                         byte_count += count;
2708                 }
2709                 psg->count = cpu_to_le32(nseg);
2710                 /* hba wants the size to be exact */
2711                 if (byte_count > scsi_bufflen(scsicmd)) {
2712                         u32 temp = le32_to_cpu(psg->sg[i-1].count) -
2713                                 (byte_count - scsi_bufflen(scsicmd));
2714                         psg->sg[i-1].count = cpu_to_le32(temp);
2715                         byte_count = scsi_bufflen(scsicmd);
2716                 }
2717                 /* Check for command underflow */
2718                 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2719                         printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2720                                         byte_count, scsicmd->underflow);
2721                 }
2722         }
2723         return byte_count;
2724 }
2725
2726 #ifdef AAC_DETAILED_STATUS_INFO
2727
2728 struct aac_srb_status_info {
2729         u32     status;
2730         char    *str;
2731 };
2732
2733
2734 static struct aac_srb_status_info srb_status_info[] = {
2735         { SRB_STATUS_PENDING,           "Pending Status"},
2736         { SRB_STATUS_SUCCESS,           "Success"},
2737         { SRB_STATUS_ABORTED,           "Aborted Command"},
2738         { SRB_STATUS_ABORT_FAILED,      "Abort Failed"},
2739         { SRB_STATUS_ERROR,             "Error Event"},
2740         { SRB_STATUS_BUSY,              "Device Busy"},
2741         { SRB_STATUS_INVALID_REQUEST,   "Invalid Request"},
2742         { SRB_STATUS_INVALID_PATH_ID,   "Invalid Path ID"},
2743         { SRB_STATUS_NO_DEVICE,         "No Device"},
2744         { SRB_STATUS_TIMEOUT,           "Timeout"},
2745         { SRB_STATUS_SELECTION_TIMEOUT, "Selection Timeout"},
2746         { SRB_STATUS_COMMAND_TIMEOUT,   "Command Timeout"},
2747         { SRB_STATUS_MESSAGE_REJECTED,  "Message Rejected"},
2748         { SRB_STATUS_BUS_RESET,         "Bus Reset"},
2749         { SRB_STATUS_PARITY_ERROR,      "Parity Error"},
2750         { SRB_STATUS_REQUEST_SENSE_FAILED,"Request Sense Failed"},
2751         { SRB_STATUS_NO_HBA,            "No HBA"},
2752         { SRB_STATUS_DATA_OVERRUN,      "Data Overrun/Data Underrun"},
2753         { SRB_STATUS_UNEXPECTED_BUS_FREE,"Unexpected Bus Free"},
2754         { SRB_STATUS_PHASE_SEQUENCE_FAILURE,"Phase Error"},
2755         { SRB_STATUS_BAD_SRB_BLOCK_LENGTH,"Bad Srb Block Length"},
2756         { SRB_STATUS_REQUEST_FLUSHED,   "Request Flushed"},
2757         { SRB_STATUS_DELAYED_RETRY,     "Delayed Retry"},
2758         { SRB_STATUS_INVALID_LUN,       "Invalid LUN"},
2759         { SRB_STATUS_INVALID_TARGET_ID, "Invalid TARGET ID"},
2760         { SRB_STATUS_BAD_FUNCTION,      "Bad Function"},
2761         { SRB_STATUS_ERROR_RECOVERY,    "Error Recovery"},
2762         { SRB_STATUS_NOT_STARTED,       "Not Started"},
2763         { SRB_STATUS_NOT_IN_USE,        "Not In Use"},
2764         { SRB_STATUS_FORCE_ABORT,       "Force Abort"},
2765         { SRB_STATUS_DOMAIN_VALIDATION_FAIL,"Domain Validation Failure"},
2766         { 0xff,                         "Unknown Error"}
2767 };
2768
2769 char *aac_get_status_string(u32 status)
2770 {
2771         int i;
2772
2773         for (i = 0; i < ARRAY_SIZE(srb_status_info); i++)
2774                 if (srb_status_info[i].status == status)
2775                         return srb_status_info[i].str;
2776
2777         return "Bad Status Code";
2778 }
2779
2780 #endif