git.oblomov.eu Git - linux-2.6/blob - drivers/scsi/aacraid/aachba.c

   1 /*
   2  *      Adaptec AAC series RAID controller driver
   3  *      (c) Copyright 2001 Red Hat Inc. <alan@redhat.com>
   4  *
   5  * based on the old aacraid driver that is..
   6  * Adaptec aacraid device driver for Linux.
   7  *
   8  * Copyright (c) 2000 Adaptec, Inc. (aacraid@adaptec.com)
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2, or (at your option)
  13  * any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; see the file COPYING.  If not, write to
  22  * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
  23  *
  24  */
  25
  26 #include <linux/kernel.h>
  27 #include <linux/init.h>
  28 #include <linux/types.h>
  29 #include <linux/sched.h>
  30 #include <linux/pci.h>
  31 #include <linux/spinlock.h>
  32 #include <linux/slab.h>
  33 #include <linux/completion.h>
  34 #include <linux/blkdev.h>
  35 #include <linux/dma-mapping.h>
  36 #include <asm/semaphore.h>
  37 #include <asm/uaccess.h>
  38
  39 #include <scsi/scsi.h>
  40 #include <scsi/scsi_cmnd.h>
  41 #include <scsi/scsi_device.h>
  42 #include <scsi/scsi_host.h>
  43
  44 #include "aacraid.h"
  45
  46 /* values for inqd_pdt: Peripheral device type in plain English */
  47 #define INQD_PDT_DA     0x00    /* Direct-access (DISK) device */
  48 #define INQD_PDT_PROC   0x03    /* Processor device */
  49 #define INQD_PDT_CHNGR  0x08    /* Changer (jukebox, scsi2) */
  50 #define INQD_PDT_COMM   0x09    /* Communication device (scsi2) */
  51 #define INQD_PDT_NOLUN2 0x1f    /* Unknown Device (scsi2) */
  52 #define INQD_PDT_NOLUN  0x7f    /* Logical Unit Not Present */
  53
  54 #define INQD_PDT_DMASK  0x1F    /* Peripheral Device Type Mask */
  55 #define INQD_PDT_QMASK  0xE0    /* Peripheral Device Qualifer Mask */
  56
  57 /*
  58  *      Sense codes
  59  */
  60
  61 #define SENCODE_NO_SENSE                        0x00
  62 #define SENCODE_END_OF_DATA                     0x00
  63 #define SENCODE_BECOMING_READY                  0x04
  64 #define SENCODE_INIT_CMD_REQUIRED               0x04
  65 #define SENCODE_PARAM_LIST_LENGTH_ERROR         0x1A
  66 #define SENCODE_INVALID_COMMAND                 0x20
  67 #define SENCODE_LBA_OUT_OF_RANGE                0x21
  68 #define SENCODE_INVALID_CDB_FIELD               0x24
  69 #define SENCODE_LUN_NOT_SUPPORTED               0x25
  70 #define SENCODE_INVALID_PARAM_FIELD             0x26
  71 #define SENCODE_PARAM_NOT_SUPPORTED             0x26
  72 #define SENCODE_PARAM_VALUE_INVALID             0x26
  73 #define SENCODE_RESET_OCCURRED                  0x29
  74 #define SENCODE_LUN_NOT_SELF_CONFIGURED_YET     0x3E
  75 #define SENCODE_INQUIRY_DATA_CHANGED            0x3F
  76 #define SENCODE_SAVING_PARAMS_NOT_SUPPORTED     0x39
  77 #define SENCODE_DIAGNOSTIC_FAILURE              0x40
  78 #define SENCODE_INTERNAL_TARGET_FAILURE         0x44
  79 #define SENCODE_INVALID_MESSAGE_ERROR           0x49
  80 #define SENCODE_LUN_FAILED_SELF_CONFIG          0x4c
  81 #define SENCODE_OVERLAPPED_COMMAND              0x4E
  82
  83 /*
  84  *      Additional sense codes
  85  */
  86
  87 #define ASENCODE_NO_SENSE                       0x00
  88 #define ASENCODE_END_OF_DATA                    0x05
  89 #define ASENCODE_BECOMING_READY                 0x01
  90 #define ASENCODE_INIT_CMD_REQUIRED              0x02
  91 #define ASENCODE_PARAM_LIST_LENGTH_ERROR        0x00
  92 #define ASENCODE_INVALID_COMMAND                0x00
  93 #define ASENCODE_LBA_OUT_OF_RANGE               0x00
  94 #define ASENCODE_INVALID_CDB_FIELD              0x00
  95 #define ASENCODE_LUN_NOT_SUPPORTED              0x00
  96 #define ASENCODE_INVALID_PARAM_FIELD            0x00
  97 #define ASENCODE_PARAM_NOT_SUPPORTED            0x01
  98 #define ASENCODE_PARAM_VALUE_INVALID            0x02
  99 #define ASENCODE_RESET_OCCURRED                 0x00
 100 #define ASENCODE_LUN_NOT_SELF_CONFIGURED_YET    0x00
 101 #define ASENCODE_INQUIRY_DATA_CHANGED           0x03
 102 #define ASENCODE_SAVING_PARAMS_NOT_SUPPORTED    0x00
 103 #define ASENCODE_DIAGNOSTIC_FAILURE             0x80
 104 #define ASENCODE_INTERNAL_TARGET_FAILURE        0x00
 105 #define ASENCODE_INVALID_MESSAGE_ERROR          0x00
 106 #define ASENCODE_LUN_FAILED_SELF_CONFIG         0x00
 107 #define ASENCODE_OVERLAPPED_COMMAND             0x00
 108
 109 #define BYTE0(x) (unsigned char)(x)
 110 #define BYTE1(x) (unsigned char)((x) >> 8)
 111 #define BYTE2(x) (unsigned char)((x) >> 16)
 112 #define BYTE3(x) (unsigned char)((x) >> 24)
 113
 114 /*------------------------------------------------------------------------------
 115  *              S T R U C T S / T Y P E D E F S
 116  *----------------------------------------------------------------------------*/
 117 /* SCSI inquiry data */
 118 struct inquiry_data {
 119         u8 inqd_pdt;    /* Peripheral qualifier | Peripheral Device Type  */
 120         u8 inqd_dtq;    /* RMB | Device Type Qualifier  */
 121         u8 inqd_ver;    /* ISO version | ECMA version | ANSI-approved version */
 122         u8 inqd_rdf;    /* AENC | TrmIOP | Response data format */
 123         u8 inqd_len;    /* Additional length (n-4) */
 124         u8 inqd_pad1[2];/* Reserved - must be zero */
 125         u8 inqd_pad2;   /* RelAdr | WBus32 | WBus16 |  Sync  | Linked |Reserved| CmdQue | SftRe */
 126         u8 inqd_vid[8]; /* Vendor ID */
 127         u8 inqd_pid[16];/* Product ID */
 128         u8 inqd_prl[4]; /* Product Revision Level */
 129 };
 130
 131 /*
 132  *              M O D U L E   G L O B A L S
 133  */
 134
 135 static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* sgmap);
 136 static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* psg);
 137 static unsigned long aac_build_sgraw(struct scsi_cmnd* scsicmd, struct sgmapraw* psg);
 138 static int aac_send_srb_fib(struct scsi_cmnd* scsicmd);
 139 #ifdef AAC_DETAILED_STATUS_INFO
 140 static char *aac_get_status_string(u32 status);
 141 #endif
 142
 143 /*
 144  *      Non dasd selection is handled entirely in aachba now
 145  */
 146
 147 static int nondasd = -1;
 148 static int dacmode = -1;
 149
 150 static int commit = -1;
 151 int startup_timeout = 180;
 152 int aif_timeout = 120;
 153
 154 module_param(nondasd, int, S_IRUGO|S_IWUSR);
 155 MODULE_PARM_DESC(nondasd, "Control scanning of hba for nondasd devices. 0=off, 1=on");
 156 module_param(dacmode, int, S_IRUGO|S_IWUSR);
 157 MODULE_PARM_DESC(dacmode, "Control whether dma addressing is using 64 bit DAC. 0=off, 1=on");
 158 module_param(commit, int, S_IRUGO|S_IWUSR);
 159 MODULE_PARM_DESC(commit, "Control whether a COMMIT_CONFIG is issued to the adapter for foreign arrays.\nThis is typically needed in systems that do not have a BIOS. 0=off, 1=on");
 160 module_param(startup_timeout, int, S_IRUGO|S_IWUSR);
 161 MODULE_PARM_DESC(startup_timeout, "The duration of time in seconds to wait for adapter to have it's kernel up and\nrunning. This is typically adjusted for large systems that do not have a BIOS.");
 162 module_param(aif_timeout, int, S_IRUGO|S_IWUSR);
 163 MODULE_PARM_DESC(aif_timeout, "The duration of time in seconds to wait for applications to pick up AIFs before\nderegistering them. This is typically adjusted for heavily burdened systems.");
 164
 165 int numacb = -1;
 166 module_param(numacb, int, S_IRUGO|S_IWUSR);
 167 MODULE_PARM_DESC(numacb, "Request a limit to the number of adapter control blocks (FIB) allocated. Valid values are 512 and down. Default is to use suggestion from Firmware.");
 168
 169 int acbsize = -1;
 170 module_param(acbsize, int, S_IRUGO|S_IWUSR);
 171 MODULE_PARM_DESC(acbsize, "Request a specific adapter control block (FIB) size. Valid values are 512, 2048, 4096 and 8192. Default is to use suggestion from Firmware.");
 172 /**
 173  *      aac_get_config_status   -       check the adapter configuration
 174  *      @common: adapter to query
 175  *
 176  *      Query config status, and commit the configuration if needed.
 177  */
 178 int aac_get_config_status(struct aac_dev *dev, int commit_flag)
 179 {
 180         int status = 0;
 181         struct fib * fibptr;
 182
 183         if (!(fibptr = aac_fib_alloc(dev)))
 184                 return -ENOMEM;
 185
 186         aac_fib_init(fibptr);
 187         {
 188                 struct aac_get_config_status *dinfo;
 189                 dinfo = (struct aac_get_config_status *) fib_data(fibptr);
 190
 191                 dinfo->command = cpu_to_le32(VM_ContainerConfig);
 192                 dinfo->type = cpu_to_le32(CT_GET_CONFIG_STATUS);
 193                 dinfo->count = cpu_to_le32(sizeof(((struct aac_get_config_status_resp *)NULL)->data));
 194         }
 195
 196         status = aac_fib_send(ContainerCommand,
 197                             fibptr,
 198                             sizeof (struct aac_get_config_status),
 199                             FsaNormal,
 200                             1, 1,
 201                             NULL, NULL);
 202         if (status < 0 ) {
 203                 printk(KERN_WARNING "aac_get_config_status: SendFIB failed.\n");
 204         } else {
 205                 struct aac_get_config_status_resp *reply
 206                   = (struct aac_get_config_status_resp *) fib_data(fibptr);
 207                 dprintk((KERN_WARNING
 208                   "aac_get_config_status: response=%d status=%d action=%d\n",
 209                   le32_to_cpu(reply->response),
 210                   le32_to_cpu(reply->status),
 211                   le32_to_cpu(reply->data.action)));
 212                 if ((le32_to_cpu(reply->response) != ST_OK) ||
 213                      (le32_to_cpu(reply->status) != CT_OK) ||
 214                      (le32_to_cpu(reply->data.action) > CFACT_PAUSE)) {
 215                         printk(KERN_WARNING "aac_get_config_status: Will not issue the Commit Configuration\n");
 216                         status = -EINVAL;
 217                 }
 218         }
 219         aac_fib_complete(fibptr);
 220         /* Send a CT_COMMIT_CONFIG to enable discovery of devices */
 221         if (status >= 0) {
 222                 if ((commit == 1) || commit_flag) {
 223                         struct aac_commit_config * dinfo;
 224                         aac_fib_init(fibptr);
 225                         dinfo = (struct aac_commit_config *) fib_data(fibptr);
 226
 227                         dinfo->command = cpu_to_le32(VM_ContainerConfig);
 228                         dinfo->type = cpu_to_le32(CT_COMMIT_CONFIG);
 229
 230                         status = aac_fib_send(ContainerCommand,
 231                                     fibptr,
 232                                     sizeof (struct aac_commit_config),
 233                                     FsaNormal,
 234                                     1, 1,
 235                                     NULL, NULL);
 236                         aac_fib_complete(fibptr);
 237                 } else if (commit == 0) {
 238                         printk(KERN_WARNING
 239                           "aac_get_config_status: Foreign device configurations are being ignored\n");
 240                 }
 241         }
 242         aac_fib_free(fibptr);
 243         return status;
 244 }
 245
 246 /**
 247  *      aac_get_containers      -       list containers
 248  *      @common: adapter to probe
 249  *
 250  *      Make a list of all containers on this controller
 251  */
 252 int aac_get_containers(struct aac_dev *dev)
 253 {
 254         struct fsa_dev_info *fsa_dev_ptr;
 255         u32 index;
 256         int status = 0;
 257         struct fib * fibptr;
 258         unsigned instance;
 259         struct aac_get_container_count *dinfo;
 260         struct aac_get_container_count_resp *dresp;
 261         int maximum_num_containers = MAXIMUM_NUM_CONTAINERS;
 262
 263         instance = dev->scsi_host_ptr->unique_id;
 264
 265         if (!(fibptr = aac_fib_alloc(dev)))
 266                 return -ENOMEM;
 267
 268         aac_fib_init(fibptr);
 269         dinfo = (struct aac_get_container_count *) fib_data(fibptr);
 270         dinfo->command = cpu_to_le32(VM_ContainerConfig);
 271         dinfo->type = cpu_to_le32(CT_GET_CONTAINER_COUNT);
 272
 273         status = aac_fib_send(ContainerCommand,
 274                     fibptr,
 275                     sizeof (struct aac_get_container_count),
 276                     FsaNormal,
 277                     1, 1,
 278                     NULL, NULL);
 279         if (status >= 0) {
 280                 dresp = (struct aac_get_container_count_resp *)fib_data(fibptr);
 281                 maximum_num_containers = le32_to_cpu(dresp->ContainerSwitchEntries);
 282                 aac_fib_complete(fibptr);
 283         }
 284
 285         if (maximum_num_containers < MAXIMUM_NUM_CONTAINERS)
 286                 maximum_num_containers = MAXIMUM_NUM_CONTAINERS;
 287         fsa_dev_ptr = (struct fsa_dev_info *) kmalloc(
 288           sizeof(*fsa_dev_ptr) * maximum_num_containers, GFP_KERNEL);
 289         if (!fsa_dev_ptr) {
 290                 aac_fib_free(fibptr);
 291                 return -ENOMEM;
 292         }
 293         memset(fsa_dev_ptr, 0, sizeof(*fsa_dev_ptr) * maximum_num_containers);
 294
 295         dev->fsa_dev = fsa_dev_ptr;
 296         dev->maximum_num_containers = maximum_num_containers;
 297
 298         for (index = 0; index < dev->maximum_num_containers; index++) {
 299                 struct aac_query_mount *dinfo;
 300                 struct aac_mount *dresp;
 301
 302                 fsa_dev_ptr[index].devname[0] = '\0';
 303
 304                 aac_fib_init(fibptr);
 305                 dinfo = (struct aac_query_mount *) fib_data(fibptr);
 306
 307                 dinfo->command = cpu_to_le32(VM_NameServe);
 308                 dinfo->count = cpu_to_le32(index);
 309                 dinfo->type = cpu_to_le32(FT_FILESYS);
 310
 311                 status = aac_fib_send(ContainerCommand,
 312                                     fibptr,
 313                                     sizeof (struct aac_query_mount),
 314                                     FsaNormal,
 315                                     1, 1,
 316                                     NULL, NULL);
 317                 if (status < 0 ) {
 318                         printk(KERN_WARNING "aac_get_containers: SendFIB failed.\n");
 319                         break;
 320                 }
 321                 dresp = (struct aac_mount *)fib_data(fibptr);
 322
 323                 if ((le32_to_cpu(dresp->status) == ST_OK) &&
 324                     (le32_to_cpu(dresp->mnt[0].vol) == CT_NONE)) {
 325                         dinfo->command = cpu_to_le32(VM_NameServe64);
 326                         dinfo->count = cpu_to_le32(index);
 327                         dinfo->type = cpu_to_le32(FT_FILESYS);
 328
 329                         if (aac_fib_send(ContainerCommand,
 330                                     fibptr,
 331                                     sizeof(struct aac_query_mount),
 332                                     FsaNormal,
 333                                     1, 1,
 334                                     NULL, NULL) < 0)
 335                                 continue;
 336                 } else
 337                         dresp->mnt[0].capacityhigh = 0;
 338
 339                 dprintk ((KERN_DEBUG
 340                   "VM_NameServe cid=%d status=%d vol=%d state=%d cap=%llu\n",
 341                   (int)index, (int)le32_to_cpu(dresp->status),
 342                   (int)le32_to_cpu(dresp->mnt[0].vol),
 343                   (int)le32_to_cpu(dresp->mnt[0].state),
 344                   ((u64)le32_to_cpu(dresp->mnt[0].capacity)) +
 345                     (((u64)le32_to_cpu(dresp->mnt[0].capacityhigh)) << 32)));
 346                 if ((le32_to_cpu(dresp->status) == ST_OK) &&
 347                     (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE) &&
 348                     (le32_to_cpu(dresp->mnt[0].state) != FSCS_HIDDEN)) {
 349                         fsa_dev_ptr[index].valid = 1;
 350                         fsa_dev_ptr[index].type = le32_to_cpu(dresp->mnt[0].vol);
 351                         fsa_dev_ptr[index].size
 352                           = ((u64)le32_to_cpu(dresp->mnt[0].capacity)) +
 353                             (((u64)le32_to_cpu(dresp->mnt[0].capacityhigh)) << 32);
 354                         if (le32_to_cpu(dresp->mnt[0].state) & FSCS_READONLY)
 355                                     fsa_dev_ptr[index].ro = 1;
 356                 }
 357                 aac_fib_complete(fibptr);
 358                 /*
 359                  *      If there are no more containers, then stop asking.
 360                  */
 361                 if ((index + 1) >= le32_to_cpu(dresp->count)){
 362                         break;
 363                 }
 364         }
 365         aac_fib_free(fibptr);
 366         return status;
 367 }
 368
 369 static void aac_internal_transfer(struct scsi_cmnd *scsicmd, void *data, unsigned int offset, unsigned int len)
 370 {
 371         void *buf;
 372         unsigned int transfer_len;
 373         struct scatterlist *sg = scsicmd->request_buffer;
 374
 375         if (scsicmd->use_sg) {
 376                 buf = kmap_atomic(sg->page, KM_IRQ0) + sg->offset;
 377                 transfer_len = min(sg->length, len + offset);
 378         } else {
 379                 buf = scsicmd->request_buffer;
 380                 transfer_len = min(scsicmd->request_bufflen, len + offset);
 381         }
 382
 383         memcpy(buf + offset, data, transfer_len - offset);
 384
 385         if (scsicmd->use_sg)
 386                 kunmap_atomic(buf - sg->offset, KM_IRQ0);
 387
 388 }
 389
 390 static void get_container_name_callback(void *context, struct fib * fibptr)
 391 {
 392         struct aac_get_name_resp * get_name_reply;
 393         struct scsi_cmnd * scsicmd;
 394
 395         scsicmd = (struct scsi_cmnd *) context;
 396         scsicmd->SCp.phase = AAC_OWNER_MIDLEVEL;
 397
 398         dprintk((KERN_DEBUG "get_container_name_callback[cpu %d]: t = %ld.\n", smp_processor_id(), jiffies));
 399         BUG_ON(fibptr == NULL);
 400
 401         get_name_reply = (struct aac_get_name_resp *) fib_data(fibptr);
 402         /* Failure is irrelevant, using default value instead */
 403         if ((le32_to_cpu(get_name_reply->status) == CT_OK)
 404          && (get_name_reply->data[0] != '\0')) {
 405                 char *sp = get_name_reply->data;
 406                 sp[sizeof(((struct aac_get_name_resp *)NULL)->data)-1] = '\0';
 407                 while (*sp == ' ')
 408                         ++sp;
 409                 if (*sp) {
 410                         char d[sizeof(((struct inquiry_data *)NULL)->inqd_pid)];
 411                         int count = sizeof(d);
 412                         char *dp = d;
 413                         do {
 414                                 *dp++ = (*sp) ? *sp++ : ' ';
 415                         } while (--count > 0);
 416                         aac_internal_transfer(scsicmd, d,
 417                           offsetof(struct inquiry_data, inqd_pid), sizeof(d));
 418                 }
 419         }
 420
 421         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
 422
 423         aac_fib_complete(fibptr);
 424         aac_fib_free(fibptr);
 425         scsicmd->scsi_done(scsicmd);
 426 }
 427
 428 /**
 429  *      aac_get_container_name  -       get container name, none blocking.
 430  */
 431 static int aac_get_container_name(struct scsi_cmnd * scsicmd, int cid)
 432 {
 433         int status;
 434         struct aac_get_name *dinfo;
 435         struct fib * cmd_fibcontext;
 436         struct aac_dev * dev;
 437
 438         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
 439
 440         if (!(cmd_fibcontext = aac_fib_alloc(dev)))
 441                 return -ENOMEM;
 442
 443         aac_fib_init(cmd_fibcontext);
 444         dinfo = (struct aac_get_name *) fib_data(cmd_fibcontext);
 445
 446         dinfo->command = cpu_to_le32(VM_ContainerConfig);
 447         dinfo->type = cpu_to_le32(CT_READ_NAME);
 448         dinfo->cid = cpu_to_le32(cid);
 449         dinfo->count = cpu_to_le32(sizeof(((struct aac_get_name_resp *)NULL)->data));
 450
 451         status = aac_fib_send(ContainerCommand,
 452                   cmd_fibcontext,
 453                   sizeof (struct aac_get_name),
 454                   FsaNormal,
 455                   0, 1,
 456                   (fib_callback) get_container_name_callback,
 457                   (void *) scsicmd);
 458
 459         /*
 460          *      Check that the command queued to the controller
 461          */
 462         if (status == -EINPROGRESS) {
 463                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
 464                 return 0;
 465         }
 466
 467         printk(KERN_WARNING "aac_get_container_name: aac_fib_send failed with status: %d.\n", status);
 468         aac_fib_complete(cmd_fibcontext);
 469         aac_fib_free(cmd_fibcontext);
 470         return -1;
 471 }
 472
 473 /**
 474  *      aac_probe_container             -       query a logical volume
 475  *      @dev: device to query
 476  *      @cid: container identifier
 477  *
 478  *      Queries the controller about the given volume. The volume information
 479  *      is updated in the struct fsa_dev_info structure rather than returned.
 480  */
 481
 482 int aac_probe_container(struct aac_dev *dev, int cid)
 483 {
 484         struct fsa_dev_info *fsa_dev_ptr;
 485         int status;
 486         struct aac_query_mount *dinfo;
 487         struct aac_mount *dresp;
 488         struct fib * fibptr;
 489         unsigned instance;
 490
 491         fsa_dev_ptr = dev->fsa_dev;
 492         if (!fsa_dev_ptr)
 493                 return -ENOMEM;
 494         instance = dev->scsi_host_ptr->unique_id;
 495
 496         if (!(fibptr = aac_fib_alloc(dev)))
 497                 return -ENOMEM;
 498
 499         aac_fib_init(fibptr);
 500
 501         dinfo = (struct aac_query_mount *)fib_data(fibptr);
 502
 503         dinfo->command = cpu_to_le32(VM_NameServe);
 504         dinfo->count = cpu_to_le32(cid);
 505         dinfo->type = cpu_to_le32(FT_FILESYS);
 506
 507         status = aac_fib_send(ContainerCommand,
 508                             fibptr,
 509                             sizeof(struct aac_query_mount),
 510                             FsaNormal,
 511                             1, 1,
 512                             NULL, NULL);
 513         if (status < 0) {
 514                 printk(KERN_WARNING "aacraid: aac_probe_container query failed.\n");
 515                 goto error;
 516         }
 517
 518         dresp = (struct aac_mount *) fib_data(fibptr);
 519
 520         if ((le32_to_cpu(dresp->status) == ST_OK) &&
 521             (le32_to_cpu(dresp->mnt[0].vol) == CT_NONE)) {
 522                 dinfo->command = cpu_to_le32(VM_NameServe64);
 523                 dinfo->count = cpu_to_le32(cid);
 524                 dinfo->type = cpu_to_le32(FT_FILESYS);
 525
 526                 if (aac_fib_send(ContainerCommand,
 527                             fibptr,
 528                             sizeof(struct aac_query_mount),
 529                             FsaNormal,
 530                             1, 1,
 531                             NULL, NULL) < 0)
 532                         goto error;
 533         } else
 534                 dresp->mnt[0].capacityhigh = 0;
 535
 536         if ((le32_to_cpu(dresp->status) == ST_OK) &&
 537             (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE) &&
 538             (le32_to_cpu(dresp->mnt[0].state) != FSCS_HIDDEN)) {
 539                 fsa_dev_ptr[cid].valid = 1;
 540                 fsa_dev_ptr[cid].type = le32_to_cpu(dresp->mnt[0].vol);
 541                 fsa_dev_ptr[cid].size
 542                   = ((u64)le32_to_cpu(dresp->mnt[0].capacity)) +
 543                     (((u64)le32_to_cpu(dresp->mnt[0].capacityhigh)) << 32);
 544                 if (le32_to_cpu(dresp->mnt[0].state) & FSCS_READONLY)
 545                         fsa_dev_ptr[cid].ro = 1;
 546         }
 547
 548 error:
 549         aac_fib_complete(fibptr);
 550         aac_fib_free(fibptr);
 551
 552         return status;
 553 }
 554
 555 /* Local Structure to set SCSI inquiry data strings */
 556 struct scsi_inq {
 557         char vid[8];         /* Vendor ID */
 558         char pid[16];        /* Product ID */
 559         char prl[4];         /* Product Revision Level */
 560 };
 561
 562 /**
 563  *      InqStrCopy      -       string merge
 564  *      @a:     string to copy from
 565  *      @b:     string to copy to
 566  *
 567  *      Copy a String from one location to another
 568  *      without copying \0
 569  */
 570
 571 static void inqstrcpy(char *a, char *b)
 572 {
 573
 574         while(*a != (char)0)
 575                 *b++ = *a++;
 576 }
 577
 578 static char *container_types[] = {
 579         "None",
 580         "Volume",
 581         "Mirror",
 582         "Stripe",
 583         "RAID5",
 584         "SSRW",
 585         "SSRO",
 586         "Morph",
 587         "Legacy",
 588         "RAID4",
 589         "RAID10",
 590         "RAID00",
 591         "V-MIRRORS",
 592         "PSEUDO R4",
 593         "RAID50",
 594         "RAID5D",
 595         "RAID5D0",
 596         "RAID1E",
 597         "RAID6",
 598         "RAID60",
 599         "Unknown"
 600 };
 601
 602
 603
 604 /* Function: setinqstr
 605  *
 606  * Arguments: [1] pointer to void [1] int
 607  *
 608  * Purpose: Sets SCSI inquiry data strings for vendor, product
 609  * and revision level. Allows strings to be set in platform dependant
 610  * files instead of in OS dependant driver source.
 611  */
 612
 613 static void setinqstr(struct aac_dev *dev, void *data, int tindex)
 614 {
 615         struct scsi_inq *str;
 616
 617         str = (struct scsi_inq *)(data); /* cast data to scsi inq block */
 618         memset(str, ' ', sizeof(*str));
 619
 620         if (dev->supplement_adapter_info.AdapterTypeText[0]) {
 621                 char * cp = dev->supplement_adapter_info.AdapterTypeText;
 622                 int c = sizeof(str->vid);
 623                 while (*cp && *cp != ' ' && --c)
 624                         ++cp;
 625                 c = *cp;
 626                 *cp = '\0';
 627                 inqstrcpy (dev->supplement_adapter_info.AdapterTypeText,
 628                   str->vid);
 629                 *cp = c;
 630                 while (*cp && *cp != ' ')
 631                         ++cp;
 632                 while (*cp == ' ')
 633                         ++cp;
 634                 /* last six chars reserved for vol type */
 635                 c = 0;
 636                 if (strlen(cp) > sizeof(str->pid)) {
 637                         c = cp[sizeof(str->pid)];
 638                         cp[sizeof(str->pid)] = '\0';
 639                 }
 640                 inqstrcpy (cp, str->pid);
 641                 if (c)
 642                         cp[sizeof(str->pid)] = c;
 643         } else {
 644                 struct aac_driver_ident *mp = aac_get_driver_ident(dev->cardtype);
 645
 646                 inqstrcpy (mp->vname, str->vid);
 647                 /* last six chars reserved for vol type */
 648                 inqstrcpy (mp->model, str->pid);
 649         }
 650
 651         if (tindex < ARRAY_SIZE(container_types)){
 652                 char *findit = str->pid;
 653
 654                 for ( ; *findit != ' '; findit++); /* walk till we find a space */
 655                 /* RAID is superfluous in the context of a RAID device */
 656                 if (memcmp(findit-4, "RAID", 4) == 0)
 657                         *(findit -= 4) = ' ';
 658                 if (((findit - str->pid) + strlen(container_types[tindex]))
 659                  < (sizeof(str->pid) + sizeof(str->prl)))
 660                         inqstrcpy (container_types[tindex], findit + 1);
 661         }
 662         inqstrcpy ("V1.0", str->prl);
 663 }
 664
 665 static void set_sense(u8 *sense_buf, u8 sense_key, u8 sense_code,
 666                       u8 a_sense_code, u8 incorrect_length,
 667                       u8 bit_pointer, u16 field_pointer,
 668                       u32 residue)
 669 {
 670         sense_buf[0] = 0xF0;    /* Sense data valid, err code 70h (current error) */
 671         sense_buf[1] = 0;       /* Segment number, always zero */
 672
 673         if (incorrect_length) {
 674                 sense_buf[2] = sense_key | 0x20;/* Set ILI bit | sense key */
 675                 sense_buf[3] = BYTE3(residue);
 676                 sense_buf[4] = BYTE2(residue);
 677                 sense_buf[5] = BYTE1(residue);
 678                 sense_buf[6] = BYTE0(residue);
 679         } else
 680                 sense_buf[2] = sense_key;       /* Sense key */
 681
 682         if (sense_key == ILLEGAL_REQUEST)
 683                 sense_buf[7] = 10;      /* Additional sense length */
 684         else
 685                 sense_buf[7] = 6;       /* Additional sense length */
 686
 687         sense_buf[12] = sense_code;     /* Additional sense code */
 688         sense_buf[13] = a_sense_code;   /* Additional sense code qualifier */
 689         if (sense_key == ILLEGAL_REQUEST) {
 690                 sense_buf[15] = 0;
 691
 692                 if (sense_code == SENCODE_INVALID_PARAM_FIELD)
 693                         sense_buf[15] = 0x80;/* Std sense key specific field */
 694                 /* Illegal parameter is in the parameter block */
 695
 696                 if (sense_code == SENCODE_INVALID_CDB_FIELD)
 697                         sense_buf[15] = 0xc0;/* Std sense key specific field */
 698                 /* Illegal parameter is in the CDB block */
 699                 sense_buf[15] |= bit_pointer;
 700                 sense_buf[16] = field_pointer >> 8;     /* MSB */
 701                 sense_buf[17] = field_pointer;          /* LSB */
 702         }
 703 }
 704
 705 int aac_get_adapter_info(struct aac_dev* dev)
 706 {
 707         struct fib* fibptr;
 708         int rcode;
 709         u32 tmp;
 710         struct aac_adapter_info *info;
 711         struct aac_bus_info *command;
 712         struct aac_bus_info_response *bus_info;
 713
 714         if (!(fibptr = aac_fib_alloc(dev)))
 715                 return -ENOMEM;
 716
 717         aac_fib_init(fibptr);
 718         info = (struct aac_adapter_info *) fib_data(fibptr);
 719         memset(info,0,sizeof(*info));
 720
 721         rcode = aac_fib_send(RequestAdapterInfo,
 722                          fibptr,
 723                          sizeof(*info),
 724                          FsaNormal,
 725                          -1, 1, /* First `interrupt' command uses special wait */
 726                          NULL,
 727                          NULL);
 728
 729         if (rcode < 0) {
 730                 aac_fib_complete(fibptr);
 731                 aac_fib_free(fibptr);
 732                 return rcode;
 733         }
 734         memcpy(&dev->adapter_info, info, sizeof(*info));
 735
 736         if (dev->adapter_info.options & AAC_OPT_SUPPLEMENT_ADAPTER_INFO) {
 737                 struct aac_supplement_adapter_info * info;
 738
 739                 aac_fib_init(fibptr);
 740
 741                 info = (struct aac_supplement_adapter_info *) fib_data(fibptr);
 742
 743                 memset(info,0,sizeof(*info));
 744
 745                 rcode = aac_fib_send(RequestSupplementAdapterInfo,
 746                                  fibptr,
 747                                  sizeof(*info),
 748                                  FsaNormal,
 749                                  1, 1,
 750                                  NULL,
 751                                  NULL);
 752
 753                 if (rcode >= 0)
 754                         memcpy(&dev->supplement_adapter_info, info, sizeof(*info));
 755         }
 756
 757
 758         /*
 759          * GetBusInfo
 760          */
 761
 762         aac_fib_init(fibptr);
 763
 764         bus_info = (struct aac_bus_info_response *) fib_data(fibptr);
 765
 766         memset(bus_info, 0, sizeof(*bus_info));
 767
 768         command = (struct aac_bus_info *)bus_info;
 769
 770         command->Command = cpu_to_le32(VM_Ioctl);
 771         command->ObjType = cpu_to_le32(FT_DRIVE);
 772         command->MethodId = cpu_to_le32(1);
 773         command->CtlCmd = cpu_to_le32(GetBusInfo);
 774
 775         rcode = aac_fib_send(ContainerCommand,
 776                          fibptr,
 777                          sizeof (*bus_info),
 778                          FsaNormal,
 779                          1, 1,
 780                          NULL, NULL);
 781
 782         if (rcode >= 0 && le32_to_cpu(bus_info->Status) == ST_OK) {
 783                 dev->maximum_num_physicals = le32_to_cpu(bus_info->TargetsPerBus);
 784                 dev->maximum_num_channels = le32_to_cpu(bus_info->BusCount);
 785         }
 786
 787         if (!dev->in_reset) {
 788                 tmp = le32_to_cpu(dev->adapter_info.kernelrev);
 789                 printk(KERN_INFO "%s%d: kernel %d.%d-%d[%d] %.*s\n",
 790                         dev->name,
 791                         dev->id,
 792                         tmp>>24,
 793                         (tmp>>16)&0xff,
 794                         tmp&0xff,
 795                         le32_to_cpu(dev->adapter_info.kernelbuild),
 796                         (int)sizeof(dev->supplement_adapter_info.BuildDate),
 797                         dev->supplement_adapter_info.BuildDate);
 798                 tmp = le32_to_cpu(dev->adapter_info.monitorrev);
 799                 printk(KERN_INFO "%s%d: monitor %d.%d-%d[%d]\n",
 800                         dev->name, dev->id,
 801                         tmp>>24,(tmp>>16)&0xff,tmp&0xff,
 802                         le32_to_cpu(dev->adapter_info.monitorbuild));
 803                 tmp = le32_to_cpu(dev->adapter_info.biosrev);
 804                 printk(KERN_INFO "%s%d: bios %d.%d-%d[%d]\n",
 805                         dev->name, dev->id,
 806                         tmp>>24,(tmp>>16)&0xff,tmp&0xff,
 807                         le32_to_cpu(dev->adapter_info.biosbuild));
 808                 if (le32_to_cpu(dev->adapter_info.serial[0]) != 0xBAD0)
 809                         printk(KERN_INFO "%s%d: serial %x\n",
 810                                 dev->name, dev->id,
 811                                 le32_to_cpu(dev->adapter_info.serial[0]));
 812         }
 813
 814         dev->nondasd_support = 0;
 815         dev->raid_scsi_mode = 0;
 816         if(dev->adapter_info.options & AAC_OPT_NONDASD){
 817                 dev->nondasd_support = 1;
 818         }
 819
 820         /*
 821          * If the firmware supports ROMB RAID/SCSI mode and we are currently
 822          * in RAID/SCSI mode, set the flag. For now if in this mode we will
 823          * force nondasd support on. If we decide to allow the non-dasd flag
 824          * additional changes changes will have to be made to support
 825          * RAID/SCSI.  the function aac_scsi_cmd in this module will have to be
 826          * changed to support the new dev->raid_scsi_mode flag instead of
 827          * leaching off of the dev->nondasd_support flag. Also in linit.c the
 828          * function aac_detect will have to be modified where it sets up the
 829          * max number of channels based on the aac->nondasd_support flag only.
 830          */
 831         if ((dev->adapter_info.options & AAC_OPT_SCSI_MANAGED) &&
 832             (dev->adapter_info.options & AAC_OPT_RAID_SCSI_MODE)) {
 833                 dev->nondasd_support = 1;
 834                 dev->raid_scsi_mode = 1;
 835         }
 836         if (dev->raid_scsi_mode != 0)
 837                 printk(KERN_INFO "%s%d: ROMB RAID/SCSI mode enabled\n",
 838                                 dev->name, dev->id);
 839
 840         if(nondasd != -1) {
 841                 dev->nondasd_support = (nondasd!=0);
 842         }
 843         if(dev->nondasd_support != 0){
 844                 printk(KERN_INFO "%s%d: Non-DASD support enabled.\n",dev->name, dev->id);
 845         }
 846
 847         dev->dac_support = 0;
 848         if( (sizeof(dma_addr_t) > 4) && (dev->adapter_info.options & AAC_OPT_SGMAP_HOST64)){
 849                 printk(KERN_INFO "%s%d: 64bit support enabled.\n", dev->name, dev->id);
 850                 dev->dac_support = 1;
 851         }
 852
 853         if(dacmode != -1) {
 854                 dev->dac_support = (dacmode!=0);
 855         }
 856         if(dev->dac_support != 0) {
 857                 if (!pci_set_dma_mask(dev->pdev, DMA_64BIT_MASK) &&
 858                         !pci_set_consistent_dma_mask(dev->pdev, DMA_64BIT_MASK)) {
 859                         printk(KERN_INFO"%s%d: 64 Bit DAC enabled\n",
 860                                 dev->name, dev->id);
 861                 } else if (!pci_set_dma_mask(dev->pdev, DMA_32BIT_MASK) &&
 862                         !pci_set_consistent_dma_mask(dev->pdev, DMA_32BIT_MASK)) {
 863                         printk(KERN_INFO"%s%d: DMA mask set failed, 64 Bit DAC disabled\n",
 864                                 dev->name, dev->id);
 865                         dev->dac_support = 0;
 866                 } else {
 867                         printk(KERN_WARNING"%s%d: No suitable DMA available.\n",
 868                                 dev->name, dev->id);
 869                         rcode = -ENOMEM;
 870                 }
 871         }
 872         /*
 873          * 57 scatter gather elements
 874          */
 875         if (!(dev->raw_io_interface)) {
 876                 dev->scsi_host_ptr->sg_tablesize = (dev->max_fib_size -
 877                         sizeof(struct aac_fibhdr) -
 878                         sizeof(struct aac_write) + sizeof(struct sgentry)) /
 879                                 sizeof(struct sgentry);
 880                 if (dev->dac_support) {
 881                         /*
 882                          * 38 scatter gather elements
 883                          */
 884                         dev->scsi_host_ptr->sg_tablesize =
 885                                 (dev->max_fib_size -
 886                                 sizeof(struct aac_fibhdr) -
 887                                 sizeof(struct aac_write64) +
 888                                 sizeof(struct sgentry64)) /
 889                                         sizeof(struct sgentry64);
 890                 }
 891                 dev->scsi_host_ptr->max_sectors = AAC_MAX_32BIT_SGBCOUNT;
 892                 if(!(dev->adapter_info.options & AAC_OPT_NEW_COMM)) {
 893                         /*
 894                          * Worst case size that could cause sg overflow when
 895                          * we break up SG elements that are larger than 64KB.
 896                          * Would be nice if we could tell the SCSI layer what
 897                          * the maximum SG element size can be. Worst case is
 898                          * (sg_tablesize-1) 4KB elements with one 64KB
 899                          * element.
 900                          *      32bit -> 468 or 238KB   64bit -> 424 or 212KB
 901                          */
 902                         dev->scsi_host_ptr->max_sectors =
 903                           (dev->scsi_host_ptr->sg_tablesize * 8) + 112;
 904                 }
 905         }
 906
 907         aac_fib_complete(fibptr);
 908         aac_fib_free(fibptr);
 909
 910         return rcode;
 911 }
 912
 913
 914 static void io_callback(void *context, struct fib * fibptr)
 915 {
 916         struct aac_dev *dev;
 917         struct aac_read_reply *readreply;
 918         struct scsi_cmnd *scsicmd;
 919         u32 cid;
 920
 921         scsicmd = (struct scsi_cmnd *) context;
 922         scsicmd->SCp.phase = AAC_OWNER_MIDLEVEL;
 923
 924         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
 925         cid = scmd_id(scsicmd);
 926
 927         if (nblank(dprintk(x))) {
 928                 u64 lba;
 929                 switch (scsicmd->cmnd[0]) {
 930                 case WRITE_6:
 931                 case READ_6:
 932                         lba = ((scsicmd->cmnd[1] & 0x1F) << 16) |
 933                             (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
 934                         break;
 935                 case WRITE_16:
 936                 case READ_16:
 937                         lba = ((u64)scsicmd->cmnd[2] << 56) |
 938                               ((u64)scsicmd->cmnd[3] << 48) |
 939                               ((u64)scsicmd->cmnd[4] << 40) |
 940                               ((u64)scsicmd->cmnd[5] << 32) |
 941                               ((u64)scsicmd->cmnd[6] << 24) |
 942                               (scsicmd->cmnd[7] << 16) |
 943                               (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
 944                         break;
 945                 case WRITE_12:
 946                 case READ_12:
 947                         lba = ((u64)scsicmd->cmnd[2] << 24) |
 948                               (scsicmd->cmnd[3] << 16) |
 949                               (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
 950                         break;
 951                 default:
 952                         lba = ((u64)scsicmd->cmnd[2] << 24) |
 953                                (scsicmd->cmnd[3] << 16) |
 954                                (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
 955                         break;
 956                 }
 957                 printk(KERN_DEBUG
 958                   "io_callback[cpu %d]: lba = %llu, t = %ld.\n",
 959                   smp_processor_id(), (unsigned long long)lba, jiffies);
 960         }
 961
 962         BUG_ON(fibptr == NULL);
 963
 964         if(scsicmd->use_sg)
 965                 pci_unmap_sg(dev->pdev,
 966                         (struct scatterlist *)scsicmd->request_buffer,
 967                         scsicmd->use_sg,
 968                         scsicmd->sc_data_direction);
 969         else if(scsicmd->request_bufflen)
 970                 pci_unmap_single(dev->pdev, scsicmd->SCp.dma_handle,
 971                                  scsicmd->request_bufflen,
 972                                  scsicmd->sc_data_direction);
 973         readreply = (struct aac_read_reply *)fib_data(fibptr);
 974         if (le32_to_cpu(readreply->status) == ST_OK)
 975                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
 976         else {
 977 #ifdef AAC_DETAILED_STATUS_INFO
 978                 printk(KERN_WARNING "io_callback: io failed, status = %d\n",
 979                   le32_to_cpu(readreply->status));
 980 #endif
 981                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
 982                 set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
 983                                     HARDWARE_ERROR,
 984                                     SENCODE_INTERNAL_TARGET_FAILURE,
 985                                     ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
 986                                     0, 0);
 987                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
 988                   (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
 989                     ? sizeof(scsicmd->sense_buffer)
 990                     : sizeof(dev->fsa_dev[cid].sense_data));
 991         }
 992         aac_fib_complete(fibptr);
 993         aac_fib_free(fibptr);
 994
 995         scsicmd->scsi_done(scsicmd);
 996 }
 997
 998 static int aac_read(struct scsi_cmnd * scsicmd, int cid)
 999 {
1000         u64 lba;
1001         u32 count;
1002         int status;
1003
1004         u16 fibsize;
1005         struct aac_dev *dev;
1006         struct fib * cmd_fibcontext;
1007
1008         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1009         /*
1010          *      Get block address and transfer length
1011          */
1012         switch (scsicmd->cmnd[0]) {
1013         case READ_6:
1014                 dprintk((KERN_DEBUG "aachba: received a read(6) command on id %d.\n", cid));
1015
1016                 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) |
1017                         (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
1018                 count = scsicmd->cmnd[4];
1019
1020                 if (count == 0)
1021                         count = 256;
1022                 break;
1023         case READ_16:
1024                 dprintk((KERN_DEBUG "aachba: received a read(16) command on id %d.\n", cid));
1025
1026                 lba =   ((u64)scsicmd->cmnd[2] << 56) |
1027                         ((u64)scsicmd->cmnd[3] << 48) |
1028                         ((u64)scsicmd->cmnd[4] << 40) |
1029                         ((u64)scsicmd->cmnd[5] << 32) |
1030                         ((u64)scsicmd->cmnd[6] << 24) |
1031                         (scsicmd->cmnd[7] << 16) |
1032                         (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1033                 count = (scsicmd->cmnd[10] << 24) |
1034                         (scsicmd->cmnd[11] << 16) |
1035                         (scsicmd->cmnd[12] << 8) | scsicmd->cmnd[13];
1036                 break;
1037         case READ_12:
1038                 dprintk((KERN_DEBUG "aachba: received a read(12) command on id %d.\n", cid));
1039
1040                 lba = ((u64)scsicmd->cmnd[2] << 24) |
1041                         (scsicmd->cmnd[3] << 16) |
1042                         (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1043                 count = (scsicmd->cmnd[6] << 24) |
1044                         (scsicmd->cmnd[7] << 16) |
1045                         (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1046                 break;
1047         default:
1048                 dprintk((KERN_DEBUG "aachba: received a read(10) command on id %d.\n", cid));
1049
1050                 lba = ((u64)scsicmd->cmnd[2] << 24) |
1051                         (scsicmd->cmnd[3] << 16) |
1052                         (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1053                 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
1054                 break;
1055         }
1056         dprintk((KERN_DEBUG "aac_read[cpu %d]: lba = %llu, t = %ld.\n",
1057           smp_processor_id(), (unsigned long long)lba, jiffies));
1058         if ((!(dev->raw_io_interface) || !(dev->raw_io_64)) &&
1059                 (lba & 0xffffffff00000000LL)) {
1060                 dprintk((KERN_DEBUG "aac_read: Illegal lba\n"));
1061                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 |
1062                         SAM_STAT_CHECK_CONDITION;
1063                 set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
1064                             HARDWARE_ERROR,
1065                             SENCODE_INTERNAL_TARGET_FAILURE,
1066                             ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
1067                             0, 0);
1068                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1069                   (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
1070                     ? sizeof(scsicmd->sense_buffer)
1071                     : sizeof(dev->fsa_dev[cid].sense_data));
1072                 scsicmd->scsi_done(scsicmd);
1073                 return 0;
1074         }
1075         /*
1076          *      Alocate and initialize a Fib
1077          */
1078         if (!(cmd_fibcontext = aac_fib_alloc(dev))) {
1079                 return -1;
1080         }
1081
1082         aac_fib_init(cmd_fibcontext);
1083
1084         if (dev->raw_io_interface) {
1085                 struct aac_raw_io *readcmd;
1086                 readcmd = (struct aac_raw_io *) fib_data(cmd_fibcontext);
1087                 readcmd->block[0] = cpu_to_le32((u32)(lba&0xffffffff));
1088                 readcmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
1089                 readcmd->count = cpu_to_le32(count<<9);
1090                 readcmd->cid = cpu_to_le16(cid);
1091                 readcmd->flags = cpu_to_le16(1);
1092                 readcmd->bpTotal = 0;
1093                 readcmd->bpComplete = 0;
1094
1095                 aac_build_sgraw(scsicmd, &readcmd->sg);
1096                 fibsize = sizeof(struct aac_raw_io) + ((le32_to_cpu(readcmd->sg.count) - 1) * sizeof (struct sgentryraw));
1097                 BUG_ON(fibsize > (dev->max_fib_size - sizeof(struct aac_fibhdr)));
1098                 /*
1099                  *      Now send the Fib to the adapter
1100                  */
1101                 status = aac_fib_send(ContainerRawIo,
1102                           cmd_fibcontext,
1103                           fibsize,
1104                           FsaNormal,
1105                           0, 1,
1106                           (fib_callback) io_callback,
1107                           (void *) scsicmd);
1108         } else if (dev->dac_support == 1) {
1109                 struct aac_read64 *readcmd;
1110                 readcmd = (struct aac_read64 *) fib_data(cmd_fibcontext);
1111                 readcmd->command = cpu_to_le32(VM_CtHostRead64);
1112                 readcmd->cid = cpu_to_le16(cid);
1113                 readcmd->sector_count = cpu_to_le16(count);
1114                 readcmd->block = cpu_to_le32((u32)(lba&0xffffffff));
1115                 readcmd->pad   = 0;
1116                 readcmd->flags = 0;
1117
1118                 aac_build_sg64(scsicmd, &readcmd->sg);
1119                 fibsize = sizeof(struct aac_read64) +
1120                         ((le32_to_cpu(readcmd->sg.count) - 1) *
1121                          sizeof (struct sgentry64));
1122                 BUG_ON (fibsize > (dev->max_fib_size -
1123                                         sizeof(struct aac_fibhdr)));
1124                 /*
1125                  *      Now send the Fib to the adapter
1126                  */
1127                 status = aac_fib_send(ContainerCommand64,
1128                           cmd_fibcontext,
1129                           fibsize,
1130                           FsaNormal,
1131                           0, 1,
1132                           (fib_callback) io_callback,
1133                           (void *) scsicmd);
1134         } else {
1135                 struct aac_read *readcmd;
1136                 readcmd = (struct aac_read *) fib_data(cmd_fibcontext);
1137                 readcmd->command = cpu_to_le32(VM_CtBlockRead);
1138                 readcmd->cid = cpu_to_le32(cid);
1139                 readcmd->block = cpu_to_le32((u32)(lba&0xffffffff));
1140                 readcmd->count = cpu_to_le32(count * 512);
1141
1142                 aac_build_sg(scsicmd, &readcmd->sg);
1143                 fibsize = sizeof(struct aac_read) +
1144                         ((le32_to_cpu(readcmd->sg.count) - 1) *
1145                          sizeof (struct sgentry));
1146                 BUG_ON (fibsize > (dev->max_fib_size -
1147                                         sizeof(struct aac_fibhdr)));
1148                 /*
1149                  *      Now send the Fib to the adapter
1150                  */
1151                 status = aac_fib_send(ContainerCommand,
1152                           cmd_fibcontext,
1153                           fibsize,
1154                           FsaNormal,
1155                           0, 1,
1156                           (fib_callback) io_callback,
1157                           (void *) scsicmd);
1158         }
1159
1160
1161
1162         /*
1163          *      Check that the command queued to the controller
1164          */
1165         if (status == -EINPROGRESS) {
1166                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
1167                 return 0;
1168         }
1169
1170         printk(KERN_WARNING "aac_read: aac_fib_send failed with status: %d.\n", status);
1171         /*
1172          *      For some reason, the Fib didn't queue, return QUEUE_FULL
1173          */
1174         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_TASK_SET_FULL;
1175         scsicmd->scsi_done(scsicmd);
1176         aac_fib_complete(cmd_fibcontext);
1177         aac_fib_free(cmd_fibcontext);
1178         return 0;
1179 }
1180
1181 static int aac_write(struct scsi_cmnd * scsicmd, int cid)
1182 {
1183         u64 lba;
1184         u32 count;
1185         int status;
1186         u16 fibsize;
1187         struct aac_dev *dev;
1188         struct fib * cmd_fibcontext;
1189
1190         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1191         /*
1192          *      Get block address and transfer length
1193          */
1194         if (scsicmd->cmnd[0] == WRITE_6)        /* 6 byte command */
1195         {
1196                 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
1197                 count = scsicmd->cmnd[4];
1198                 if (count == 0)
1199                         count = 256;
1200         } else if (scsicmd->cmnd[0] == WRITE_16) { /* 16 byte command */
1201                 dprintk((KERN_DEBUG "aachba: received a write(16) command on id %d.\n", cid));
1202
1203                 lba =   ((u64)scsicmd->cmnd[2] << 56) |
1204                         ((u64)scsicmd->cmnd[3] << 48) |
1205                         ((u64)scsicmd->cmnd[4] << 40) |
1206                         ((u64)scsicmd->cmnd[5] << 32) |
1207                         ((u64)scsicmd->cmnd[6] << 24) |
1208                         (scsicmd->cmnd[7] << 16) |
1209                         (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1210                 count = (scsicmd->cmnd[10] << 24) | (scsicmd->cmnd[11] << 16) |
1211                         (scsicmd->cmnd[12] << 8) | scsicmd->cmnd[13];
1212         } else if (scsicmd->cmnd[0] == WRITE_12) { /* 12 byte command */
1213                 dprintk((KERN_DEBUG "aachba: received a write(12) command on id %d.\n", cid));
1214
1215                 lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16)
1216                     | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1217                 count = (scsicmd->cmnd[6] << 24) | (scsicmd->cmnd[7] << 16)
1218                       | (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1219         } else {
1220                 dprintk((KERN_DEBUG "aachba: received a write(10) command on id %d.\n", cid));
1221                 lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1222                 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
1223         }
1224         dprintk((KERN_DEBUG "aac_write[cpu %d]: lba = %llu, t = %ld.\n",
1225           smp_processor_id(), (unsigned long long)lba, jiffies));
1226         if ((!(dev->raw_io_interface) || !(dev->raw_io_64))
1227          && (lba & 0xffffffff00000000LL)) {
1228                 dprintk((KERN_DEBUG "aac_write: Illegal lba\n"));
1229                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1230                 set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
1231                             HARDWARE_ERROR,
1232                             SENCODE_INTERNAL_TARGET_FAILURE,
1233                             ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
1234                             0, 0);
1235                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1236                   (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
1237                     ? sizeof(scsicmd->sense_buffer)
1238                     : sizeof(dev->fsa_dev[cid].sense_data));
1239                 scsicmd->scsi_done(scsicmd);
1240                 return 0;
1241         }
1242         /*
1243          *      Allocate and initialize a Fib then setup a BlockWrite command
1244          */
1245         if (!(cmd_fibcontext = aac_fib_alloc(dev))) {
1246                 scsicmd->result = DID_ERROR << 16;
1247                 scsicmd->scsi_done(scsicmd);
1248                 return 0;
1249         }
1250         aac_fib_init(cmd_fibcontext);
1251
1252         if (dev->raw_io_interface) {
1253                 struct aac_raw_io *writecmd;
1254                 writecmd = (struct aac_raw_io *) fib_data(cmd_fibcontext);
1255                 writecmd->block[0] = cpu_to_le32((u32)(lba&0xffffffff));
1256                 writecmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
1257                 writecmd->count = cpu_to_le32(count<<9);
1258                 writecmd->cid = cpu_to_le16(cid);
1259                 writecmd->flags = 0;
1260                 writecmd->bpTotal = 0;
1261                 writecmd->bpComplete = 0;
1262
1263                 aac_build_sgraw(scsicmd, &writecmd->sg);
1264                 fibsize = sizeof(struct aac_raw_io) + ((le32_to_cpu(writecmd->sg.count) - 1) * sizeof (struct sgentryraw));
1265                 BUG_ON(fibsize > (dev->max_fib_size - sizeof(struct aac_fibhdr)));
1266                 /*
1267                  *      Now send the Fib to the adapter
1268                  */
1269                 status = aac_fib_send(ContainerRawIo,
1270                           cmd_fibcontext,
1271                           fibsize,
1272                           FsaNormal,
1273                           0, 1,
1274                           (fib_callback) io_callback,
1275                           (void *) scsicmd);
1276         } else if (dev->dac_support == 1) {
1277                 struct aac_write64 *writecmd;
1278                 writecmd = (struct aac_write64 *) fib_data(cmd_fibcontext);
1279                 writecmd->command = cpu_to_le32(VM_CtHostWrite64);
1280                 writecmd->cid = cpu_to_le16(cid);
1281                 writecmd->sector_count = cpu_to_le16(count);
1282                 writecmd->block = cpu_to_le32((u32)(lba&0xffffffff));
1283                 writecmd->pad   = 0;
1284                 writecmd->flags = 0;
1285
1286                 aac_build_sg64(scsicmd, &writecmd->sg);
1287                 fibsize = sizeof(struct aac_write64) +
1288                         ((le32_to_cpu(writecmd->sg.count) - 1) *
1289                          sizeof (struct sgentry64));
1290                 BUG_ON (fibsize > (dev->max_fib_size -
1291                                         sizeof(struct aac_fibhdr)));
1292                 /*
1293                  *      Now send the Fib to the adapter
1294                  */
1295                 status = aac_fib_send(ContainerCommand64,
1296                           cmd_fibcontext,
1297                           fibsize,
1298                           FsaNormal,
1299                           0, 1,
1300                           (fib_callback) io_callback,
1301                           (void *) scsicmd);
1302         } else {
1303                 struct aac_write *writecmd;
1304                 writecmd = (struct aac_write *) fib_data(cmd_fibcontext);
1305                 writecmd->command = cpu_to_le32(VM_CtBlockWrite);
1306                 writecmd->cid = cpu_to_le32(cid);
1307                 writecmd->block = cpu_to_le32((u32)(lba&0xffffffff));
1308                 writecmd->count = cpu_to_le32(count * 512);
1309                 writecmd->sg.count = cpu_to_le32(1);
1310                 /* ->stable is not used - it did mean which type of write */
1311
1312                 aac_build_sg(scsicmd, &writecmd->sg);
1313                 fibsize = sizeof(struct aac_write) +
1314                         ((le32_to_cpu(writecmd->sg.count) - 1) *
1315                          sizeof (struct sgentry));
1316                 BUG_ON (fibsize > (dev->max_fib_size -
1317                                         sizeof(struct aac_fibhdr)));
1318                 /*
1319                  *      Now send the Fib to the adapter
1320                  */
1321                 status = aac_fib_send(ContainerCommand,
1322                           cmd_fibcontext,
1323                           fibsize,
1324                           FsaNormal,
1325                           0, 1,
1326                           (fib_callback) io_callback,
1327                           (void *) scsicmd);
1328         }
1329
1330         /*
1331          *      Check that the command queued to the controller
1332          */
1333         if (status == -EINPROGRESS) {
1334                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
1335                 return 0;
1336         }
1337
1338         printk(KERN_WARNING "aac_write: aac_fib_send failed with status: %d\n", status);
1339         /*
1340          *      For some reason, the Fib didn't queue, return QUEUE_FULL
1341          */
1342         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_TASK_SET_FULL;
1343         scsicmd->scsi_done(scsicmd);
1344
1345         aac_fib_complete(cmd_fibcontext);
1346         aac_fib_free(cmd_fibcontext);
1347         return 0;
1348 }
1349
1350 static void synchronize_callback(void *context, struct fib *fibptr)
1351 {
1352         struct aac_synchronize_reply *synchronizereply;
1353         struct scsi_cmnd *cmd;
1354
1355         cmd = context;
1356         cmd->SCp.phase = AAC_OWNER_MIDLEVEL;
1357
1358         dprintk((KERN_DEBUG "synchronize_callback[cpu %d]: t = %ld.\n",
1359                                 smp_processor_id(), jiffies));
1360         BUG_ON(fibptr == NULL);
1361
1362
1363         synchronizereply = fib_data(fibptr);
1364         if (le32_to_cpu(synchronizereply->status) == CT_OK)
1365                 cmd->result = DID_OK << 16 |
1366                         COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1367         else {
1368                 struct scsi_device *sdev = cmd->device;
1369                 struct aac_dev *dev = (struct aac_dev *)sdev->host->hostdata;
1370                 u32 cid = sdev_id(sdev);
1371                 printk(KERN_WARNING
1372                      "synchronize_callback: synchronize failed, status = %d\n",
1373                      le32_to_cpu(synchronizereply->status));
1374                 cmd->result = DID_OK << 16 |
1375                         COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1376                 set_sense((u8 *)&dev->fsa_dev[cid].sense_data,
1377                                     HARDWARE_ERROR,
1378                                     SENCODE_INTERNAL_TARGET_FAILURE,
1379                                     ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
1380                                     0, 0);
1381                 memcpy(cmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1382                   min(sizeof(dev->fsa_dev[cid].sense_data),
1383                           sizeof(cmd->sense_buffer)));
1384         }
1385
1386         aac_fib_complete(fibptr);
1387         aac_fib_free(fibptr);
1388         cmd->scsi_done(cmd);
1389 }
1390
1391 static int aac_synchronize(struct scsi_cmnd *scsicmd, int cid)
1392 {
1393         int status;
1394         struct fib *cmd_fibcontext;
1395         struct aac_synchronize *synchronizecmd;
1396         struct scsi_cmnd *cmd;
1397         struct scsi_device *sdev = scsicmd->device;
1398         int active = 0;
1399         struct aac_dev *aac;
1400         unsigned long flags;
1401
1402         /*
1403          * Wait for all outstanding queued commands to complete to this
1404          * specific target (block).
1405          */
1406         spin_lock_irqsave(&sdev->list_lock, flags);
1407         list_for_each_entry(cmd, &sdev->cmd_list, list)
1408                 if (cmd != scsicmd && cmd->SCp.phase == AAC_OWNER_FIRMWARE) {
1409                         ++active;
1410                         break;
1411                 }
1412
1413         spin_unlock_irqrestore(&sdev->list_lock, flags);
1414
1415         /*
1416          *      Yield the processor (requeue for later)
1417          */
1418         if (active)
1419                 return SCSI_MLQUEUE_DEVICE_BUSY;
1420
1421         aac = (struct aac_dev *)scsicmd->device->host->hostdata;
1422         if (aac->in_reset)
1423                 return SCSI_MLQUEUE_HOST_BUSY;
1424
1425         /*
1426          *      Allocate and initialize a Fib
1427          */
1428         if (!(cmd_fibcontext = aac_fib_alloc(aac)))
1429                 return SCSI_MLQUEUE_HOST_BUSY;
1430
1431         aac_fib_init(cmd_fibcontext);
1432
1433         synchronizecmd = fib_data(cmd_fibcontext);
1434         synchronizecmd->command = cpu_to_le32(VM_ContainerConfig);
1435         synchronizecmd->type = cpu_to_le32(CT_FLUSH_CACHE);
1436         synchronizecmd->cid = cpu_to_le32(cid);
1437         synchronizecmd->count =
1438              cpu_to_le32(sizeof(((struct aac_synchronize_reply *)NULL)->data));
1439
1440         /*
1441          *      Now send the Fib to the adapter
1442          */
1443         status = aac_fib_send(ContainerCommand,
1444                   cmd_fibcontext,
1445                   sizeof(struct aac_synchronize),
1446                   FsaNormal,
1447                   0, 1,
1448                   (fib_callback)synchronize_callback,
1449                   (void *)scsicmd);
1450
1451         /*
1452          *      Check that the command queued to the controller
1453          */
1454         if (status == -EINPROGRESS) {
1455                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
1456                 return 0;
1457         }
1458
1459         printk(KERN_WARNING
1460                 "aac_synchronize: aac_fib_send failed with status: %d.\n", status);
1461         aac_fib_complete(cmd_fibcontext);
1462         aac_fib_free(cmd_fibcontext);
1463         return SCSI_MLQUEUE_HOST_BUSY;
1464 }
1465
1466 /**
1467  *      aac_scsi_cmd()          -       Process SCSI command
1468  *      @scsicmd:               SCSI command block
1469  *
1470  *      Emulate a SCSI command and queue the required request for the
1471  *      aacraid firmware.
1472  */
1473
1474 int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
1475 {
1476         u32 cid = 0;
1477         struct Scsi_Host *host = scsicmd->device->host;
1478         struct aac_dev *dev = (struct aac_dev *)host->hostdata;
1479         struct fsa_dev_info *fsa_dev_ptr = dev->fsa_dev;
1480
1481         if (fsa_dev_ptr == NULL)
1482                 return -1;
1483         /*
1484          *      If the bus, id or lun is out of range, return fail
1485          *      Test does not apply to ID 16, the pseudo id for the controller
1486          *      itself.
1487          */
1488         if (scmd_id(scsicmd) != host->this_id) {
1489                 if ((scmd_channel(scsicmd) == CONTAINER_CHANNEL)) {
1490                         if((scmd_id(scsicmd) >= dev->maximum_num_containers) ||
1491                                         (scsicmd->device->lun != 0)) {
1492                                 scsicmd->result = DID_NO_CONNECT << 16;
1493                                 scsicmd->scsi_done(scsicmd);
1494                                 return 0;
1495                         }
1496                         cid = scmd_id(scsicmd);
1497
1498                         /*
1499                          *      If the target container doesn't exist, it may have
1500                          *      been newly created
1501                          */
1502                         if ((fsa_dev_ptr[cid].valid & 1) == 0) {
1503                                 switch (scsicmd->cmnd[0]) {
1504                                 case SERVICE_ACTION_IN:
1505                                         if (!(dev->raw_io_interface) ||
1506                                             !(dev->raw_io_64) ||
1507                                             ((scsicmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16))
1508                                                 break;
1509                                 case INQUIRY:
1510                                 case READ_CAPACITY:
1511                                 case TEST_UNIT_READY:
1512                                         if (dev->in_reset)
1513                                                 return -1;
1514                                         spin_unlock_irq(host->host_lock);
1515                                         aac_probe_container(dev, cid);
1516                                         if ((fsa_dev_ptr[cid].valid & 1) == 0)
1517                                                 fsa_dev_ptr[cid].valid = 0;
1518                                         spin_lock_irq(host->host_lock);
1519                                         if (fsa_dev_ptr[cid].valid == 0) {
1520                                                 scsicmd->result = DID_NO_CONNECT << 16;
1521                                                 scsicmd->scsi_done(scsicmd);
1522                                                 return 0;
1523                                         }
1524                                 default:
1525                                         break;
1526                                 }
1527                         }
1528                         /*
1529                          *      If the target container still doesn't exist,
1530                          *      return failure
1531                          */
1532                         if (fsa_dev_ptr[cid].valid == 0) {
1533                                 scsicmd->result = DID_BAD_TARGET << 16;
1534                                 scsicmd->scsi_done(scsicmd);
1535                                 return 0;
1536                         }
1537                 } else {  /* check for physical non-dasd devices */
1538                         if(dev->nondasd_support == 1){
1539                                 if (dev->in_reset)
1540                                         return -1;
1541                                 return aac_send_srb_fib(scsicmd);
1542                         } else {
1543                                 scsicmd->result = DID_NO_CONNECT << 16;
1544                                 scsicmd->scsi_done(scsicmd);
1545                                 return 0;
1546                         }
1547                 }
1548         }
1549         /*
1550          * else Command for the controller itself
1551          */
1552         else if ((scsicmd->cmnd[0] != INQUIRY) &&       /* only INQUIRY & TUR cmnd supported for controller */
1553                 (scsicmd->cmnd[0] != TEST_UNIT_READY))
1554         {
1555                 dprintk((KERN_WARNING "Only INQUIRY & TUR command supported for controller, rcvd = 0x%x.\n", scsicmd->cmnd[0]));
1556                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1557                 set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
1558                             ILLEGAL_REQUEST,
1559                             SENCODE_INVALID_COMMAND,
1560                             ASENCODE_INVALID_COMMAND, 0, 0, 0, 0);
1561                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1562                   (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
1563                     ? sizeof(scsicmd->sense_buffer)
1564                     : sizeof(dev->fsa_dev[cid].sense_data));
1565                 scsicmd->scsi_done(scsicmd);
1566                 return 0;
1567         }
1568
1569
1570         /* Handle commands here that don't really require going out to the adapter */
1571         switch (scsicmd->cmnd[0]) {
1572         case INQUIRY:
1573         {
1574                 struct inquiry_data inq_data;
1575
1576                 dprintk((KERN_DEBUG "INQUIRY command, ID: %d.\n", scmd_id(scsicmd)));
1577                 memset(&inq_data, 0, sizeof (struct inquiry_data));
1578
1579                 inq_data.inqd_ver = 2;  /* claim compliance to SCSI-2 */
1580                 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 */
1581                 inq_data.inqd_len = 31;
1582                 /*Format for "pad2" is  RelAdr | WBus32 | WBus16 |  Sync  | Linked |Reserved| CmdQue | SftRe */
1583                 inq_data.inqd_pad2= 0x32 ;       /*WBus16|Sync|CmdQue */
1584                 /*
1585                  *      Set the Vendor, Product, and Revision Level
1586                  *      see: <vendor>.c i.e. aac.c
1587                  */
1588                 if (scmd_id(scsicmd) == host->this_id) {
1589                         setinqstr(dev, (void *) (inq_data.inqd_vid), ARRAY_SIZE(container_types));
1590                         inq_data.inqd_pdt = INQD_PDT_PROC;      /* Processor device */
1591                         aac_internal_transfer(scsicmd, &inq_data, 0, sizeof(inq_data));
1592                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1593                         scsicmd->scsi_done(scsicmd);
1594                         return 0;
1595                 }
1596                 if (dev->in_reset)
1597                         return -1;
1598                 setinqstr(dev, (void *) (inq_data.inqd_vid), fsa_dev_ptr[cid].type);
1599                 inq_data.inqd_pdt = INQD_PDT_DA;        /* Direct/random access device */
1600                 aac_internal_transfer(scsicmd, &inq_data, 0, sizeof(inq_data));
1601                 return aac_get_container_name(scsicmd, cid);
1602         }
1603         case SERVICE_ACTION_IN:
1604                 if (!(dev->raw_io_interface) ||
1605                     !(dev->raw_io_64) ||
1606                     ((scsicmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16))
1607                         break;
1608         {
1609                 u64 capacity;
1610                 char cp[13];
1611
1612                 dprintk((KERN_DEBUG "READ CAPACITY_16 command.\n"));
1613                 capacity = fsa_dev_ptr[cid].size - 1;
1614                 cp[0] = (capacity >> 56) & 0xff;
1615                 cp[1] = (capacity >> 48) & 0xff;
1616                 cp[2] = (capacity >> 40) & 0xff;
1617                 cp[3] = (capacity >> 32) & 0xff;
1618                 cp[4] = (capacity >> 24) & 0xff;
1619                 cp[5] = (capacity >> 16) & 0xff;
1620                 cp[6] = (capacity >> 8) & 0xff;
1621                 cp[7] = (capacity >> 0) & 0xff;
1622                 cp[8] = 0;
1623                 cp[9] = 0;
1624                 cp[10] = 2;
1625                 cp[11] = 0;
1626                 cp[12] = 0;
1627                 aac_internal_transfer(scsicmd, cp, 0,
1628                   min_t(size_t, scsicmd->cmnd[13], sizeof(cp)));
1629                 if (sizeof(cp) < scsicmd->cmnd[13]) {
1630                         unsigned int len, offset = sizeof(cp);
1631
1632                         memset(cp, 0, offset);
1633                         do {
1634                                 len = min_t(size_t, scsicmd->cmnd[13] - offset,
1635                                                 sizeof(cp));
1636                                 aac_internal_transfer(scsicmd, cp, offset, len);
1637                         } while ((offset += len) < scsicmd->cmnd[13]);
1638                 }
1639
1640                 /* Do not cache partition table for arrays */
1641                 scsicmd->device->removable = 1;
1642
1643                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1644                 scsicmd->scsi_done(scsicmd);
1645
1646                 return 0;
1647         }
1648
1649         case READ_CAPACITY:
1650         {
1651                 u32 capacity;
1652                 char cp[8];
1653
1654                 dprintk((KERN_DEBUG "READ CAPACITY command.\n"));
1655                 if (fsa_dev_ptr[cid].size <= 0x100000000ULL)
1656                         capacity = fsa_dev_ptr[cid].size - 1;
1657                 else
1658                         capacity = (u32)-1;
1659
1660                 cp[0] = (capacity >> 24) & 0xff;
1661                 cp[1] = (capacity >> 16) & 0xff;
1662                 cp[2] = (capacity >> 8) & 0xff;
1663                 cp[3] = (capacity >> 0) & 0xff;
1664                 cp[4] = 0;
1665                 cp[5] = 0;
1666                 cp[6] = 2;
1667                 cp[7] = 0;
1668                 aac_internal_transfer(scsicmd, cp, 0, sizeof(cp));
1669                 /* Do not cache partition table for arrays */
1670                 scsicmd->device->removable = 1;
1671
1672                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1673                 scsicmd->scsi_done(scsicmd);
1674
1675                 return 0;
1676         }
1677
1678         case MODE_SENSE:
1679         {
1680                 char mode_buf[4];
1681
1682                 dprintk((KERN_DEBUG "MODE SENSE command.\n"));
1683                 mode_buf[0] = 3;        /* Mode data length */
1684                 mode_buf[1] = 0;        /* Medium type - default */
1685                 mode_buf[2] = 0;        /* Device-specific param, bit 8: 0/1 = write enabled/protected */
1686                 mode_buf[3] = 0;        /* Block descriptor length */
1687
1688                 aac_internal_transfer(scsicmd, mode_buf, 0, sizeof(mode_buf));
1689                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1690                 scsicmd->scsi_done(scsicmd);
1691
1692                 return 0;
1693         }
1694         case MODE_SENSE_10:
1695         {
1696                 char mode_buf[8];
1697
1698                 dprintk((KERN_DEBUG "MODE SENSE 10 byte command.\n"));
1699                 mode_buf[0] = 0;        /* Mode data length (MSB) */
1700                 mode_buf[1] = 6;        /* Mode data length (LSB) */
1701                 mode_buf[2] = 0;        /* Medium type - default */
1702                 mode_buf[3] = 0;        /* Device-specific param, bit 8: 0/1 = write enabled/protected */
1703                 mode_buf[4] = 0;        /* reserved */
1704                 mode_buf[5] = 0;        /* reserved */
1705                 mode_buf[6] = 0;        /* Block descriptor length (MSB) */
1706                 mode_buf[7] = 0;        /* Block descriptor length (LSB) */
1707                 aac_internal_transfer(scsicmd, mode_buf, 0, sizeof(mode_buf));
1708
1709                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1710                 scsicmd->scsi_done(scsicmd);
1711
1712                 return 0;
1713         }
1714         case REQUEST_SENSE:
1715                 dprintk((KERN_DEBUG "REQUEST SENSE command.\n"));
1716                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data, sizeof (struct sense_data));
1717                 memset(&dev->fsa_dev[cid].sense_data, 0, sizeof (struct sense_data));
1718                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1719                 scsicmd->scsi_done(scsicmd);
1720                 return 0;
1721
1722         case ALLOW_MEDIUM_REMOVAL:
1723                 dprintk((KERN_DEBUG "LOCK command.\n"));
1724                 if (scsicmd->cmnd[4])
1725                         fsa_dev_ptr[cid].locked = 1;
1726                 else
1727                         fsa_dev_ptr[cid].locked = 0;
1728
1729                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1730                 scsicmd->scsi_done(scsicmd);
1731                 return 0;
1732         /*
1733          *      These commands are all No-Ops
1734          */
1735         case TEST_UNIT_READY:
1736         case RESERVE:
1737         case RELEASE:
1738         case REZERO_UNIT:
1739         case REASSIGN_BLOCKS:
1740         case SEEK_10:
1741         case START_STOP:
1742                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1743                 scsicmd->scsi_done(scsicmd);
1744                 return 0;
1745         }
1746
1747         switch (scsicmd->cmnd[0])
1748         {
1749                 case READ_6:
1750                 case READ_10:
1751                 case READ_12:
1752                 case READ_16:
1753                         if (dev->in_reset)
1754                                 return -1;
1755                         /*
1756                          *      Hack to keep track of ordinal number of the device that
1757                          *      corresponds to a container. Needed to convert
1758                          *      containers to /dev/sd device names
1759                          */
1760
1761                         if (scsicmd->request->rq_disk)
1762                                 strlcpy(fsa_dev_ptr[cid].devname,
1763                                 scsicmd->request->rq_disk->disk_name,
1764                                 min(sizeof(fsa_dev_ptr[cid].devname),
1765                                 sizeof(scsicmd->request->rq_disk->disk_name) + 1));
1766
1767                         return aac_read(scsicmd, cid);
1768
1769                 case WRITE_6:
1770                 case WRITE_10:
1771                 case WRITE_12:
1772                 case WRITE_16:
1773                         if (dev->in_reset)
1774                                 return -1;
1775                         return aac_write(scsicmd, cid);
1776
1777                 case SYNCHRONIZE_CACHE:
1778                         /* Issue FIB to tell Firmware to flush it's cache */
1779                         return aac_synchronize(scsicmd, cid);
1780
1781                 default:
1782                         /*
1783                          *      Unhandled commands
1784                          */
1785                         dprintk((KERN_WARNING "Unhandled SCSI Command: 0x%x.\n", scsicmd->cmnd[0]));
1786                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1787                         set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
1788                                 ILLEGAL_REQUEST, SENCODE_INVALID_COMMAND,
1789                                 ASENCODE_INVALID_COMMAND, 0, 0, 0, 0);
1790                         memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1791                           (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
1792                             ? sizeof(scsicmd->sense_buffer)
1793                             : sizeof(dev->fsa_dev[cid].sense_data));
1794                         scsicmd->scsi_done(scsicmd);
1795                         return 0;
1796         }
1797 }
1798
1799 static int query_disk(struct aac_dev *dev, void __user *arg)
1800 {
1801         struct aac_query_disk qd;
1802         struct fsa_dev_info *fsa_dev_ptr;
1803
1804         fsa_dev_ptr = dev->fsa_dev;
1805         if (!fsa_dev_ptr)
1806                 return -ENODEV;
1807         if (copy_from_user(&qd, arg, sizeof (struct aac_query_disk)))
1808                 return -EFAULT;
1809         if (qd.cnum == -1)
1810                 qd.cnum = qd.id;
1811         else if ((qd.bus == -1) && (qd.id == -1) && (qd.lun == -1))
1812         {
1813                 if (qd.cnum < 0 || qd.cnum >= dev->maximum_num_containers)
1814                         return -EINVAL;
1815                 qd.instance = dev->scsi_host_ptr->host_no;
1816                 qd.bus = 0;
1817                 qd.id = CONTAINER_TO_ID(qd.cnum);
1818                 qd.lun = CONTAINER_TO_LUN(qd.cnum);
1819         }
1820         else return -EINVAL;
1821
1822         qd.valid = fsa_dev_ptr[qd.cnum].valid;
1823         qd.locked = fsa_dev_ptr[qd.cnum].locked;
1824         qd.deleted = fsa_dev_ptr[qd.cnum].deleted;
1825
1826         if (fsa_dev_ptr[qd.cnum].devname[0] == '\0')
1827                 qd.unmapped = 1;
1828         else
1829                 qd.unmapped = 0;
1830
1831         strlcpy(qd.name, fsa_dev_ptr[qd.cnum].devname,
1832           min(sizeof(qd.name), sizeof(fsa_dev_ptr[qd.cnum].devname) + 1));
1833
1834         if (copy_to_user(arg, &qd, sizeof (struct aac_query_disk)))
1835                 return -EFAULT;
1836         return 0;
1837 }
1838
1839 static int force_delete_disk(struct aac_dev *dev, void __user *arg)
1840 {
1841         struct aac_delete_disk dd;
1842         struct fsa_dev_info *fsa_dev_ptr;
1843
1844         fsa_dev_ptr = dev->fsa_dev;
1845
1846         if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
1847                 return -EFAULT;
1848
1849         if (dd.cnum >= dev->maximum_num_containers)
1850                 return -EINVAL;
1851         /*
1852          *      Mark this container as being deleted.
1853          */
1854         fsa_dev_ptr[dd.cnum].deleted = 1;
1855         /*
1856          *      Mark the container as no longer valid
1857          */
1858         fsa_dev_ptr[dd.cnum].valid = 0;
1859         return 0;
1860 }
1861
1862 static int delete_disk(struct aac_dev *dev, void __user *arg)
1863 {
1864         struct aac_delete_disk dd;
1865         struct fsa_dev_info *fsa_dev_ptr;
1866
1867         fsa_dev_ptr = dev->fsa_dev;
1868         if (!fsa_dev_ptr)
1869                 return -ENODEV;
1870         if (!fsa_dev_ptr)
1871                 return -ENODEV;
1872
1873         if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
1874                 return -EFAULT;
1875
1876         if (dd.cnum >= dev->maximum_num_containers)
1877                 return -EINVAL;
1878         /*
1879          *      If the container is locked, it can not be deleted by the API.
1880          */
1881         if (fsa_dev_ptr[dd.cnum].locked)
1882                 return -EBUSY;
1883         else {
1884                 /*
1885                  *      Mark the container as no longer being valid.
1886                  */
1887                 fsa_dev_ptr[dd.cnum].valid = 0;
1888                 fsa_dev_ptr[dd.cnum].devname[0] = '\0';
1889                 return 0;
1890         }
1891 }
1892
1893 int aac_dev_ioctl(struct aac_dev *dev, int cmd, void __user *arg)
1894 {
1895         switch (cmd) {
1896         case FSACTL_QUERY_DISK:
1897                 return query_disk(dev, arg);
1898         case FSACTL_DELETE_DISK:
1899                 return delete_disk(dev, arg);
1900         case FSACTL_FORCE_DELETE_DISK:
1901                 return force_delete_disk(dev, arg);
1902         case FSACTL_GET_CONTAINERS:
1903                 return aac_get_containers(dev);
1904         default:
1905                 return -ENOTTY;
1906         }
1907 }
1908
1909 /**
1910  *
1911  * aac_srb_callback
1912  * @context: the context set in the fib - here it is scsi cmd
1913  * @fibptr: pointer to the fib
1914  *
1915  * Handles the completion of a scsi command to a non dasd device
1916  *
1917  */
1918
1919 static void aac_srb_callback(void *context, struct fib * fibptr)
1920 {
1921         struct aac_dev *dev;
1922         struct aac_srb_reply *srbreply;
1923         struct scsi_cmnd *scsicmd;
1924
1925         scsicmd = (struct scsi_cmnd *) context;
1926         scsicmd->SCp.phase = AAC_OWNER_MIDLEVEL;
1927         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1928
1929         BUG_ON(fibptr == NULL);
1930
1931         srbreply = (struct aac_srb_reply *) fib_data(fibptr);
1932
1933         scsicmd->sense_buffer[0] = '\0';  /* Initialize sense valid flag to false */
1934         /*
1935          *      Calculate resid for sg
1936          */
1937
1938         scsicmd->resid = scsicmd->request_bufflen -
1939                 le32_to_cpu(srbreply->data_xfer_length);
1940
1941         if(scsicmd->use_sg)
1942                 pci_unmap_sg(dev->pdev,
1943                         (struct scatterlist *)scsicmd->request_buffer,
1944                         scsicmd->use_sg,
1945                         scsicmd->sc_data_direction);
1946         else if(scsicmd->request_bufflen)
1947                 pci_unmap_single(dev->pdev, scsicmd->SCp.dma_handle, scsicmd->request_bufflen,
1948                         scsicmd->sc_data_direction);
1949
1950         /*
1951          * First check the fib status
1952          */
1953
1954         if (le32_to_cpu(srbreply->status) != ST_OK){
1955                 int len;
1956                 printk(KERN_WARNING "aac_srb_callback: srb failed, status = %d\n", le32_to_cpu(srbreply->status));
1957                 len = (le32_to_cpu(srbreply->sense_data_size) >
1958                                 sizeof(scsicmd->sense_buffer)) ?
1959                                 sizeof(scsicmd->sense_buffer) :
1960                                 le32_to_cpu(srbreply->sense_data_size);
1961                 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1962                 memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
1963         }
1964
1965         /*
1966          * Next check the srb status
1967          */
1968         switch( (le32_to_cpu(srbreply->srb_status))&0x3f){
1969         case SRB_STATUS_ERROR_RECOVERY:
1970         case SRB_STATUS_PENDING:
1971         case SRB_STATUS_SUCCESS:
1972                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
1973                 break;
1974         case SRB_STATUS_DATA_OVERRUN:
1975                 switch(scsicmd->cmnd[0]){
1976                 case  READ_6:
1977                 case  WRITE_6:
1978                 case  READ_10:
1979                 case  WRITE_10:
1980                 case  READ_12:
1981                 case  WRITE_12:
1982                 case  READ_16:
1983                 case  WRITE_16:
1984                         if(le32_to_cpu(srbreply->data_xfer_length) < scsicmd->underflow ) {
1985                                 printk(KERN_WARNING"aacraid: SCSI CMD underflow\n");
1986                         } else {
1987                                 printk(KERN_WARNING"aacraid: SCSI CMD Data Overrun\n");
1988                         }
1989                         scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
1990                         break;
1991                 case INQUIRY: {
1992                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
1993                         break;
1994                 }
1995                 default:
1996                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
1997                         break;
1998                 }
1999                 break;
2000         case SRB_STATUS_ABORTED:
2001                 scsicmd->result = DID_ABORT << 16 | ABORT << 8;
2002                 break;
2003         case SRB_STATUS_ABORT_FAILED:
2004                 // Not sure about this one - but assuming the hba was trying to abort for some reason
2005                 scsicmd->result = DID_ERROR << 16 | ABORT << 8;
2006                 break;
2007         case SRB_STATUS_PARITY_ERROR:
2008                 scsicmd->result = DID_PARITY << 16 | MSG_PARITY_ERROR << 8;
2009                 break;
2010         case SRB_STATUS_NO_DEVICE:
2011         case SRB_STATUS_INVALID_PATH_ID:
2012         case SRB_STATUS_INVALID_TARGET_ID:
2013         case SRB_STATUS_INVALID_LUN:
2014         case SRB_STATUS_SELECTION_TIMEOUT:
2015                 scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8;
2016                 break;
2017
2018         case SRB_STATUS_COMMAND_TIMEOUT:
2019         case SRB_STATUS_TIMEOUT:
2020                 scsicmd->result = DID_TIME_OUT << 16 | COMMAND_COMPLETE << 8;
2021                 break;
2022
2023         case SRB_STATUS_BUSY:
2024                 scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8;
2025                 break;
2026
2027         case SRB_STATUS_BUS_RESET:
2028                 scsicmd->result = DID_RESET << 16 | COMMAND_COMPLETE << 8;
2029                 break;
2030
2031         case SRB_STATUS_MESSAGE_REJECTED:
2032                 scsicmd->result = DID_ERROR << 16 | MESSAGE_REJECT << 8;
2033                 break;
2034         case SRB_STATUS_REQUEST_FLUSHED:
2035         case SRB_STATUS_ERROR:
2036         case SRB_STATUS_INVALID_REQUEST:
2037         case SRB_STATUS_REQUEST_SENSE_FAILED:
2038         case SRB_STATUS_NO_HBA:
2039         case SRB_STATUS_UNEXPECTED_BUS_FREE:
2040         case SRB_STATUS_PHASE_SEQUENCE_FAILURE:
2041         case SRB_STATUS_BAD_SRB_BLOCK_LENGTH:
2042         case SRB_STATUS_DELAYED_RETRY:
2043         case SRB_STATUS_BAD_FUNCTION:
2044         case SRB_STATUS_NOT_STARTED:
2045         case SRB_STATUS_NOT_IN_USE:
2046         case SRB_STATUS_FORCE_ABORT:
2047         case SRB_STATUS_DOMAIN_VALIDATION_FAIL:
2048         default:
2049 #ifdef AAC_DETAILED_STATUS_INFO
2050                 printk("aacraid: SRB ERROR(%u) %s scsi cmd 0x%x - scsi status 0x%x\n",
2051                         le32_to_cpu(srbreply->srb_status) & 0x3F,
2052                         aac_get_status_string(
2053                                 le32_to_cpu(srbreply->srb_status) & 0x3F),
2054                         scsicmd->cmnd[0],
2055                         le32_to_cpu(srbreply->scsi_status));
2056 #endif
2057                 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
2058                 break;
2059         }
2060         if (le32_to_cpu(srbreply->scsi_status) == 0x02 ){  // Check Condition
2061                 int len;
2062                 scsicmd->result |= SAM_STAT_CHECK_CONDITION;
2063                 len = (le32_to_cpu(srbreply->sense_data_size) >
2064                                 sizeof(scsicmd->sense_buffer)) ?
2065                                 sizeof(scsicmd->sense_buffer) :
2066                                 le32_to_cpu(srbreply->sense_data_size);
2067 #ifdef AAC_DETAILED_STATUS_INFO
2068                 printk(KERN_WARNING "aac_srb_callback: check condition, status = %d len=%d\n",
2069                                         le32_to_cpu(srbreply->status), len);
2070 #endif
2071                 memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
2072
2073         }
2074         /*
2075          * OR in the scsi status (already shifted up a bit)
2076          */
2077         scsicmd->result |= le32_to_cpu(srbreply->scsi_status);
2078
2079         aac_fib_complete(fibptr);
2080         aac_fib_free(fibptr);
2081         scsicmd->scsi_done(scsicmd);
2082 }
2083
2084 /**
2085  *
2086  * aac_send_scb_fib
2087  * @scsicmd: the scsi command block
2088  *
2089  * This routine will form a FIB and fill in the aac_srb from the
2090  * scsicmd passed in.
2091  */
2092
2093 static int aac_send_srb_fib(struct scsi_cmnd* scsicmd)
2094 {
2095         struct fib* cmd_fibcontext;
2096         struct aac_dev* dev;
2097         int status;
2098         struct aac_srb *srbcmd;
2099         u16 fibsize;
2100         u32 flag;
2101         u32 timeout;
2102
2103         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2104         if (scmd_id(scsicmd) >= dev->maximum_num_physicals ||
2105                         scsicmd->device->lun > 7) {
2106                 scsicmd->result = DID_NO_CONNECT << 16;
2107                 scsicmd->scsi_done(scsicmd);
2108                 return 0;
2109         }
2110
2111         switch(scsicmd->sc_data_direction){
2112         case DMA_TO_DEVICE:
2113                 flag = SRB_DataOut;
2114                 break;
2115         case DMA_BIDIRECTIONAL:
2116                 flag = SRB_DataIn | SRB_DataOut;
2117                 break;
2118         case DMA_FROM_DEVICE:
2119                 flag = SRB_DataIn;
2120                 break;
2121         case DMA_NONE:
2122         default:        /* shuts up some versions of gcc */
2123                 flag = SRB_NoDataXfer;
2124                 break;
2125         }
2126
2127
2128         /*
2129          *      Allocate and initialize a Fib then setup a BlockWrite command
2130          */
2131         if (!(cmd_fibcontext = aac_fib_alloc(dev))) {
2132                 return -1;
2133         }
2134         aac_fib_init(cmd_fibcontext);
2135
2136         srbcmd = (struct aac_srb*) fib_data(cmd_fibcontext);
2137         srbcmd->function = cpu_to_le32(SRBF_ExecuteScsi);
2138         srbcmd->channel  = cpu_to_le32(aac_logical_to_phys(scmd_channel(scsicmd)));
2139         srbcmd->id   = cpu_to_le32(scmd_id(scsicmd));
2140         srbcmd->lun      = cpu_to_le32(scsicmd->device->lun);
2141         srbcmd->flags    = cpu_to_le32(flag);
2142         timeout = scsicmd->timeout_per_command/HZ;
2143         if(timeout == 0){
2144                 timeout = 1;
2145         }
2146         srbcmd->timeout  = cpu_to_le32(timeout);  // timeout in seconds
2147         srbcmd->retry_limit = 0; /* Obsolete parameter */
2148         srbcmd->cdb_size = cpu_to_le32(scsicmd->cmd_len);
2149
2150         if( dev->dac_support == 1 ) {
2151                 aac_build_sg64(scsicmd, (struct sgmap64*) &srbcmd->sg);
2152                 srbcmd->count = cpu_to_le32(scsicmd->request_bufflen);
2153
2154                 memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
2155                 memcpy(srbcmd->cdb, scsicmd->cmnd, scsicmd->cmd_len);
2156                 /*
2157                  *      Build Scatter/Gather list
2158                  */
2159                 fibsize = sizeof (struct aac_srb) - sizeof (struct sgentry) +
2160                         ((le32_to_cpu(srbcmd->sg.count) & 0xff) *
2161                          sizeof (struct sgentry64));
2162                 BUG_ON (fibsize > (dev->max_fib_size -
2163                                         sizeof(struct aac_fibhdr)));
2164
2165                 /*
2166                  *      Now send the Fib to the adapter
2167                  */
2168                 status = aac_fib_send(ScsiPortCommand64, cmd_fibcontext,
2169                                 fibsize, FsaNormal, 0, 1,
2170                                   (fib_callback) aac_srb_callback,
2171                                   (void *) scsicmd);
2172         } else {
2173                 aac_build_sg(scsicmd, (struct sgmap*)&srbcmd->sg);
2174                 srbcmd->count = cpu_to_le32(scsicmd->request_bufflen);
2175
2176                 memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
2177                 memcpy(srbcmd->cdb, scsicmd->cmnd, scsicmd->cmd_len);
2178                 /*
2179                  *      Build Scatter/Gather list
2180                  */
2181                 fibsize = sizeof (struct aac_srb) +
2182                         (((le32_to_cpu(srbcmd->sg.count) & 0xff) - 1) *
2183                          sizeof (struct sgentry));
2184                 BUG_ON (fibsize > (dev->max_fib_size -
2185                                         sizeof(struct aac_fibhdr)));
2186
2187                 /*
2188                  *      Now send the Fib to the adapter
2189                  */
2190                 status = aac_fib_send(ScsiPortCommand, cmd_fibcontext, fibsize, FsaNormal, 0, 1,
2191                                   (fib_callback) aac_srb_callback, (void *) scsicmd);
2192         }
2193         /*
2194          *      Check that the command queued to the controller
2195          */
2196         if (status == -EINPROGRESS) {
2197                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
2198                 return 0;
2199         }
2200
2201         printk(KERN_WARNING "aac_srb: aac_fib_send failed with status: %d\n", status);
2202         aac_fib_complete(cmd_fibcontext);
2203         aac_fib_free(cmd_fibcontext);
2204
2205         return -1;
2206 }
2207
2208 static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* psg)
2209 {
2210         struct aac_dev *dev;
2211         unsigned long byte_count = 0;
2212
2213         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2214         // Get rid of old data
2215         psg->count = 0;
2216         psg->sg[0].addr = 0;
2217         psg->sg[0].count = 0;
2218         if (scsicmd->use_sg) {
2219                 struct scatterlist *sg;
2220                 int i;
2221                 int sg_count;
2222                 sg = (struct scatterlist *) scsicmd->request_buffer;
2223
2224                 sg_count = pci_map_sg(dev->pdev, sg, scsicmd->use_sg,
2225                         scsicmd->sc_data_direction);
2226                 psg->count = cpu_to_le32(sg_count);
2227
2228                 for (i = 0; i < sg_count; i++) {
2229                         psg->sg[i].addr = cpu_to_le32(sg_dma_address(sg));
2230                         psg->sg[i].count = cpu_to_le32(sg_dma_len(sg));
2231                         byte_count += sg_dma_len(sg);
2232                         sg++;
2233                 }
2234                 /* hba wants the size to be exact */
2235                 if(byte_count > scsicmd->request_bufflen){
2236                         u32 temp = le32_to_cpu(psg->sg[i-1].count) -
2237                                 (byte_count - scsicmd->request_bufflen);
2238                         psg->sg[i-1].count = cpu_to_le32(temp);
2239                         byte_count = scsicmd->request_bufflen;
2240                 }
2241                 /* Check for command underflow */
2242                 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2243                         printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2244                                         byte_count, scsicmd->underflow);
2245                 }
2246         }
2247         else if(scsicmd->request_bufflen) {
2248                 u32 addr;
2249                 scsicmd->SCp.dma_handle = pci_map_single(dev->pdev,
2250                                 scsicmd->request_buffer,
2251                                 scsicmd->request_bufflen,
2252                                 scsicmd->sc_data_direction);
2253                 addr = scsicmd->SCp.dma_handle;
2254                 psg->count = cpu_to_le32(1);
2255                 psg->sg[0].addr = cpu_to_le32(addr);
2256                 psg->sg[0].count = cpu_to_le32(scsicmd->request_bufflen);
2257                 byte_count = scsicmd->request_bufflen;
2258         }
2259         return byte_count;
2260 }
2261
2262
2263 static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* psg)
2264 {
2265         struct aac_dev *dev;
2266         unsigned long byte_count = 0;
2267         u64 addr;
2268
2269         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2270         // Get rid of old data
2271         psg->count = 0;
2272         psg->sg[0].addr[0] = 0;
2273         psg->sg[0].addr[1] = 0;
2274         psg->sg[0].count = 0;
2275         if (scsicmd->use_sg) {
2276                 struct scatterlist *sg;
2277                 int i;
2278                 int sg_count;
2279                 sg = (struct scatterlist *) scsicmd->request_buffer;
2280
2281                 sg_count = pci_map_sg(dev->pdev, sg, scsicmd->use_sg,
2282                         scsicmd->sc_data_direction);
2283
2284                 for (i = 0; i < sg_count; i++) {
2285                         int count = sg_dma_len(sg);
2286                         addr = sg_dma_address(sg);
2287                         psg->sg[i].addr[0] = cpu_to_le32(addr & 0xffffffff);
2288                         psg->sg[i].addr[1] = cpu_to_le32(addr>>32);
2289                         psg->sg[i].count = cpu_to_le32(count);
2290                         byte_count += count;
2291                         sg++;
2292                 }
2293                 psg->count = cpu_to_le32(sg_count);
2294                 /* hba wants the size to be exact */
2295                 if(byte_count > scsicmd->request_bufflen){
2296                         u32 temp = le32_to_cpu(psg->sg[i-1].count) -
2297                                 (byte_count - scsicmd->request_bufflen);
2298                         psg->sg[i-1].count = cpu_to_le32(temp);
2299                         byte_count = scsicmd->request_bufflen;
2300                 }
2301                 /* Check for command underflow */
2302                 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2303                         printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2304                                         byte_count, scsicmd->underflow);
2305                 }
2306         }
2307         else if(scsicmd->request_bufflen) {
2308                 scsicmd->SCp.dma_handle = pci_map_single(dev->pdev,
2309                                 scsicmd->request_buffer,
2310                                 scsicmd->request_bufflen,
2311                                 scsicmd->sc_data_direction);
2312                 addr = scsicmd->SCp.dma_handle;
2313                 psg->count = cpu_to_le32(1);
2314                 psg->sg[0].addr[0] = cpu_to_le32(addr & 0xffffffff);
2315                 psg->sg[0].addr[1] = cpu_to_le32(addr >> 32);
2316                 psg->sg[0].count = cpu_to_le32(scsicmd->request_bufflen);
2317                 byte_count = scsicmd->request_bufflen;
2318         }
2319         return byte_count;
2320 }
2321
2322 static unsigned long aac_build_sgraw(struct scsi_cmnd* scsicmd, struct sgmapraw* psg)
2323 {
2324         struct Scsi_Host *host = scsicmd->device->host;
2325         struct aac_dev *dev = (struct aac_dev *)host->hostdata;
2326         unsigned long byte_count = 0;
2327
2328         // Get rid of old data
2329         psg->count = 0;
2330         psg->sg[0].next = 0;
2331         psg->sg[0].prev = 0;
2332         psg->sg[0].addr[0] = 0;
2333         psg->sg[0].addr[1] = 0;
2334         psg->sg[0].count = 0;
2335         psg->sg[0].flags = 0;
2336         if (scsicmd->use_sg) {
2337                 struct scatterlist *sg;
2338                 int i;
2339                 int sg_count;
2340                 sg = (struct scatterlist *) scsicmd->request_buffer;
2341
2342                 sg_count = pci_map_sg(dev->pdev, sg, scsicmd->use_sg,
2343                         scsicmd->sc_data_direction);
2344
2345                 for (i = 0; i < sg_count; i++) {
2346                         int count = sg_dma_len(sg);
2347                         u64 addr = sg_dma_address(sg);
2348                         psg->sg[i].next = 0;
2349                         psg->sg[i].prev = 0;
2350                         psg->sg[i].addr[1] = cpu_to_le32((u32)(addr>>32));
2351                         psg->sg[i].addr[0] = cpu_to_le32((u32)(addr & 0xffffffff));
2352                         psg->sg[i].count = cpu_to_le32(count);
2353                         psg->sg[i].flags = 0;
2354                         byte_count += count;
2355                         sg++;
2356                 }
2357                 psg->count = cpu_to_le32(sg_count);
2358                 /* hba wants the size to be exact */
2359                 if(byte_count > scsicmd->request_bufflen){
2360                         u32 temp = le32_to_cpu(psg->sg[i-1].count) -
2361                                 (byte_count - scsicmd->request_bufflen);
2362                         psg->sg[i-1].count = cpu_to_le32(temp);
2363                         byte_count = scsicmd->request_bufflen;
2364                 }
2365                 /* Check for command underflow */
2366                 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2367                         printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2368                                         byte_count, scsicmd->underflow);
2369                 }
2370         }
2371         else if(scsicmd->request_bufflen) {
2372                 int count;
2373                 u64 addr;
2374                 scsicmd->SCp.dma_handle = pci_map_single(dev->pdev,
2375                                 scsicmd->request_buffer,
2376                                 scsicmd->request_bufflen,
2377                                 scsicmd->sc_data_direction);
2378                 addr = scsicmd->SCp.dma_handle;
2379                 count = scsicmd->request_bufflen;
2380                 psg->count = cpu_to_le32(1);
2381                 psg->sg[0].next = 0;
2382                 psg->sg[0].prev = 0;
2383                 psg->sg[0].addr[1] = cpu_to_le32((u32)(addr>>32));
2384                 psg->sg[0].addr[0] = cpu_to_le32((u32)(addr & 0xffffffff));
2385                 psg->sg[0].count = cpu_to_le32(count);
2386                 psg->sg[0].flags = 0;
2387                 byte_count = scsicmd->request_bufflen;
2388         }
2389         return byte_count;
2390 }
2391
2392 #ifdef AAC_DETAILED_STATUS_INFO
2393
2394 struct aac_srb_status_info {
2395         u32     status;
2396         char    *str;
2397 };
2398
2399
2400 static struct aac_srb_status_info srb_status_info[] = {
2401         { SRB_STATUS_PENDING,           "Pending Status"},
2402         { SRB_STATUS_SUCCESS,           "Success"},
2403         { SRB_STATUS_ABORTED,           "Aborted Command"},
2404         { SRB_STATUS_ABORT_FAILED,      "Abort Failed"},
2405         { SRB_STATUS_ERROR,             "Error Event"},
2406         { SRB_STATUS_BUSY,              "Device Busy"},
2407         { SRB_STATUS_INVALID_REQUEST,   "Invalid Request"},
2408         { SRB_STATUS_INVALID_PATH_ID,   "Invalid Path ID"},
2409         { SRB_STATUS_NO_DEVICE,         "No Device"},
2410         { SRB_STATUS_TIMEOUT,           "Timeout"},
2411         { SRB_STATUS_SELECTION_TIMEOUT, "Selection Timeout"},
2412         { SRB_STATUS_COMMAND_TIMEOUT,   "Command Timeout"},
2413         { SRB_STATUS_MESSAGE_REJECTED,  "Message Rejected"},
2414         { SRB_STATUS_BUS_RESET,         "Bus Reset"},
2415         { SRB_STATUS_PARITY_ERROR,      "Parity Error"},
2416         { SRB_STATUS_REQUEST_SENSE_FAILED,"Request Sense Failed"},
2417         { SRB_STATUS_NO_HBA,            "No HBA"},
2418         { SRB_STATUS_DATA_OVERRUN,      "Data Overrun/Data Underrun"},
2419         { SRB_STATUS_UNEXPECTED_BUS_FREE,"Unexpected Bus Free"},
2420         { SRB_STATUS_PHASE_SEQUENCE_FAILURE,"Phase Error"},
2421         { SRB_STATUS_BAD_SRB_BLOCK_LENGTH,"Bad Srb Block Length"},
2422         { SRB_STATUS_REQUEST_FLUSHED,   "Request Flushed"},
2423         { SRB_STATUS_DELAYED_RETRY,     "Delayed Retry"},
2424         { SRB_STATUS_INVALID_LUN,       "Invalid LUN"},
2425         { SRB_STATUS_INVALID_TARGET_ID, "Invalid TARGET ID"},
2426         { SRB_STATUS_BAD_FUNCTION,      "Bad Function"},
2427         { SRB_STATUS_ERROR_RECOVERY,    "Error Recovery"},
2428         { SRB_STATUS_NOT_STARTED,       "Not Started"},
2429         { SRB_STATUS_NOT_IN_USE,        "Not In Use"},
2430         { SRB_STATUS_FORCE_ABORT,       "Force Abort"},
2431         { SRB_STATUS_DOMAIN_VALIDATION_FAIL,"Domain Validation Failure"},
2432         { 0xff,                         "Unknown Error"}
2433 };
2434
2435 char *aac_get_status_string(u32 status)
2436 {
2437         int i;
2438
2439         for (i = 0; i < ARRAY_SIZE(srb_status_info); i++)
2440                 if (srb_status_info[i].status == status)
2441                         return srb_status_info[i].str;
2442
2443         return "Bad Status Code";
2444 }
2445
2446 #endif