drivers/scsi/aacraid/aachba.c

   1 /*
   2  *      Adaptec AAC series RAID controller driver
   3  *      (c) Copyright 2001 Red Hat Inc.
   4  *
   5  * based on the old aacraid driver that is..
   6  * Adaptec aacraid device driver for Linux.
   7  *
   8  * Copyright (c) 2000-2007 Adaptec, Inc. (aacraid@adaptec.com)
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2, or (at your option)
  13  * any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; see the file COPYING.  If not, write to
  22  * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
  23  *
  24  */
  25
  26 #include <linux/kernel.h>
  27 #include <linux/init.h>
  28 #include <linux/types.h>
  29 #include <linux/pci.h>
  30 #include <linux/spinlock.h>
  31 #include <linux/slab.h>
  32 #include <linux/completion.h>
  33 #include <linux/blkdev.h>
  34 #include <asm/uaccess.h>
  35 #include <linux/highmem.h> /* For flush_kernel_dcache_page */
  36
  37 #include <scsi/scsi.h>
  38 #include <scsi/scsi_cmnd.h>
  39 #include <scsi/scsi_device.h>
  40 #include <scsi/scsi_host.h>
  41
  42 #include "aacraid.h"
  43
  44 /* values for inqd_pdt: Peripheral device type in plain English */
  45 #define INQD_PDT_DA     0x00    /* Direct-access (DISK) device */
  46 #define INQD_PDT_PROC   0x03    /* Processor device */
  47 #define INQD_PDT_CHNGR  0x08    /* Changer (jukebox, scsi2) */
  48 #define INQD_PDT_COMM   0x09    /* Communication device (scsi2) */
  49 #define INQD_PDT_NOLUN2 0x1f    /* Unknown Device (scsi2) */
  50 #define INQD_PDT_NOLUN  0x7f    /* Logical Unit Not Present */
  51
  52 #define INQD_PDT_DMASK  0x1F    /* Peripheral Device Type Mask */
  53 #define INQD_PDT_QMASK  0xE0    /* Peripheral Device Qualifer Mask */
  54
  55 /*
  56  *      Sense codes
  57  */
  58
  59 #define SENCODE_NO_SENSE                        0x00
  60 #define SENCODE_END_OF_DATA                     0x00
  61 #define SENCODE_BECOMING_READY                  0x04
  62 #define SENCODE_INIT_CMD_REQUIRED               0x04
  63 #define SENCODE_PARAM_LIST_LENGTH_ERROR         0x1A
  64 #define SENCODE_INVALID_COMMAND                 0x20
  65 #define SENCODE_LBA_OUT_OF_RANGE                0x21
  66 #define SENCODE_INVALID_CDB_FIELD               0x24
  67 #define SENCODE_LUN_NOT_SUPPORTED               0x25
  68 #define SENCODE_INVALID_PARAM_FIELD             0x26
  69 #define SENCODE_PARAM_NOT_SUPPORTED             0x26
  70 #define SENCODE_PARAM_VALUE_INVALID             0x26
  71 #define SENCODE_RESET_OCCURRED                  0x29
  72 #define SENCODE_LUN_NOT_SELF_CONFIGURED_YET     0x3E
  73 #define SENCODE_INQUIRY_DATA_CHANGED            0x3F
  74 #define SENCODE_SAVING_PARAMS_NOT_SUPPORTED     0x39
  75 #define SENCODE_DIAGNOSTIC_FAILURE              0x40
  76 #define SENCODE_INTERNAL_TARGET_FAILURE         0x44
  77 #define SENCODE_INVALID_MESSAGE_ERROR           0x49
  78 #define SENCODE_LUN_FAILED_SELF_CONFIG          0x4c
  79 #define SENCODE_OVERLAPPED_COMMAND              0x4E
  80
  81 /*
  82  *      Additional sense codes
  83  */
  84
  85 #define ASENCODE_NO_SENSE                       0x00
  86 #define ASENCODE_END_OF_DATA                    0x05
  87 #define ASENCODE_BECOMING_READY                 0x01
  88 #define ASENCODE_INIT_CMD_REQUIRED              0x02
  89 #define ASENCODE_PARAM_LIST_LENGTH_ERROR        0x00
  90 #define ASENCODE_INVALID_COMMAND                0x00
  91 #define ASENCODE_LBA_OUT_OF_RANGE               0x00
  92 #define ASENCODE_INVALID_CDB_FIELD              0x00
  93 #define ASENCODE_LUN_NOT_SUPPORTED              0x00
  94 #define ASENCODE_INVALID_PARAM_FIELD            0x00
  95 #define ASENCODE_PARAM_NOT_SUPPORTED            0x01
  96 #define ASENCODE_PARAM_VALUE_INVALID            0x02
  97 #define ASENCODE_RESET_OCCURRED                 0x00
  98 #define ASENCODE_LUN_NOT_SELF_CONFIGURED_YET    0x00
  99 #define ASENCODE_INQUIRY_DATA_CHANGED           0x03
 100 #define ASENCODE_SAVING_PARAMS_NOT_SUPPORTED    0x00
 101 #define ASENCODE_DIAGNOSTIC_FAILURE             0x80
 102 #define ASENCODE_INTERNAL_TARGET_FAILURE        0x00
 103 #define ASENCODE_INVALID_MESSAGE_ERROR          0x00
 104 #define ASENCODE_LUN_FAILED_SELF_CONFIG         0x00
 105 #define ASENCODE_OVERLAPPED_COMMAND             0x00
 106
 107 #define BYTE0(x) (unsigned char)(x)
 108 #define BYTE1(x) (unsigned char)((x) >> 8)
 109 #define BYTE2(x) (unsigned char)((x) >> 16)
 110 #define BYTE3(x) (unsigned char)((x) >> 24)
 111
 112 /*------------------------------------------------------------------------------
 113  *              S T R U C T S / T Y P E D E F S
 114  *----------------------------------------------------------------------------*/
 115 /* SCSI inquiry data */
 116 struct inquiry_data {
 117         u8 inqd_pdt;    /* Peripheral qualifier | Peripheral Device Type */
 118         u8 inqd_dtq;    /* RMB | Device Type Qualifier */
 119         u8 inqd_ver;    /* ISO version | ECMA version | ANSI-approved version */
 120         u8 inqd_rdf;    /* AENC | TrmIOP | Response data format */
 121         u8 inqd_len;    /* Additional length (n-4) */
 122         u8 inqd_pad1[2];/* Reserved - must be zero */
 123         u8 inqd_pad2;   /* RelAdr | WBus32 | WBus16 |  Sync  | Linked |Reserved| CmdQue | SftRe */
 124         u8 inqd_vid[8]; /* Vendor ID */
 125         u8 inqd_pid[16];/* Product ID */
 126         u8 inqd_prl[4]; /* Product Revision Level */
 127 };
 128
 129 /*
 130  *              M O D U L E   G L O B A L S
 131  */
 132
 133 static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* sgmap);
 134 static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* psg);
 135 static unsigned long aac_build_sgraw(struct scsi_cmnd* scsicmd, struct sgmapraw* psg);
 136 static int aac_send_srb_fib(struct scsi_cmnd* scsicmd);
 137 #ifdef AAC_DETAILED_STATUS_INFO
 138 static char *aac_get_status_string(u32 status);
 139 #endif
 140
 141 /*
 142  *      Non dasd selection is handled entirely in aachba now
 143  */
 144
 145 static int nondasd = -1;
 146 static int aac_cache = 2;       /* WCE=0 to avoid performance problems */
 147 static int dacmode = -1;
 148 int aac_msi;
 149 int aac_commit = -1;
 150 int startup_timeout = 180;
 151 int aif_timeout = 120;
 152
 153 module_param(nondasd, int, S_IRUGO|S_IWUSR);
 154 MODULE_PARM_DESC(nondasd, "Control scanning of hba for nondasd devices."
 155         " 0=off, 1=on");
 156 module_param_named(cache, aac_cache, int, S_IRUGO|S_IWUSR);
 157 MODULE_PARM_DESC(cache, "Disable Queue Flush commands:\n"
 158         "\tbit 0 - Disable FUA in WRITE SCSI commands\n"
 159         "\tbit 1 - Disable SYNCHRONIZE_CACHE SCSI command\n"
 160         "\tbit 2 - Disable only if Battery is protecting Cache");
 161 module_param(dacmode, int, S_IRUGO|S_IWUSR);
 162 MODULE_PARM_DESC(dacmode, "Control whether dma addressing is using 64 bit DAC."
 163         " 0=off, 1=on");
 164 module_param_named(commit, aac_commit, int, S_IRUGO|S_IWUSR);
 165 MODULE_PARM_DESC(commit, "Control whether a COMMIT_CONFIG is issued to the"
 166         " adapter for foreign arrays.\n"
 167         "This is typically needed in systems that do not have a BIOS."
 168         " 0=off, 1=on");
 169 module_param_named(msi, aac_msi, int, S_IRUGO|S_IWUSR);
 170 MODULE_PARM_DESC(msi, "IRQ handling."
 171         " 0=PIC(default), 1=MSI, 2=MSI-X(unsupported, uses MSI)");
 172 module_param(startup_timeout, int, S_IRUGO|S_IWUSR);
 173 MODULE_PARM_DESC(startup_timeout, "The duration of time in seconds to wait for"
 174         " adapter to have it's kernel up and\n"
 175         "running. This is typically adjusted for large systems that do not"
 176         " have a BIOS.");
 177 module_param(aif_timeout, int, S_IRUGO|S_IWUSR);
 178 MODULE_PARM_DESC(aif_timeout, "The duration of time in seconds to wait for"
 179         " applications to pick up AIFs before\n"
 180         "deregistering them. This is typically adjusted for heavily burdened"
 181         " systems.");
 182
 183 int numacb = -1;
 184 module_param(numacb, int, S_IRUGO|S_IWUSR);
 185 MODULE_PARM_DESC(numacb, "Request a limit to the number of adapter control"
 186         " blocks (FIB) allocated. Valid values are 512 and down. Default is"
 187         " to use suggestion from Firmware.");
 188
 189 int acbsize = -1;
 190 module_param(acbsize, int, S_IRUGO|S_IWUSR);
 191 MODULE_PARM_DESC(acbsize, "Request a specific adapter control block (FIB)"
 192         " size. Valid values are 512, 2048, 4096 and 8192. Default is to use"
 193         " suggestion from Firmware.");
 194
 195 int update_interval = 30 * 60;
 196 module_param(update_interval, int, S_IRUGO|S_IWUSR);
 197 MODULE_PARM_DESC(update_interval, "Interval in seconds between time sync"
 198         " updates issued to adapter.");
 199
 200 int check_interval = 24 * 60 * 60;
 201 module_param(check_interval, int, S_IRUGO|S_IWUSR);
 202 MODULE_PARM_DESC(check_interval, "Interval in seconds between adapter health"
 203         " checks.");
 204
 205 int aac_check_reset = 1;
 206 module_param_named(check_reset, aac_check_reset, int, S_IRUGO|S_IWUSR);
 207 MODULE_PARM_DESC(check_reset, "If adapter fails health check, reset the"
 208         " adapter. a value of -1 forces the reset to adapters programmed to"
 209         " ignore it.");
 210
 211 int expose_physicals = -1;
 212 module_param(expose_physicals, int, S_IRUGO|S_IWUSR);
 213 MODULE_PARM_DESC(expose_physicals, "Expose physical components of the arrays."
 214         " -1=protect 0=off, 1=on");
 215
 216 int aac_reset_devices;
 217 module_param_named(reset_devices, aac_reset_devices, int, S_IRUGO|S_IWUSR);
 218 MODULE_PARM_DESC(reset_devices, "Force an adapter reset at initialization.");
 219
 220 int aac_wwn = 1;
 221 module_param_named(wwn, aac_wwn, int, S_IRUGO|S_IWUSR);
 222 MODULE_PARM_DESC(wwn, "Select a WWN type for the arrays:\n"
 223         "\t0 - Disable\n"
 224         "\t1 - Array Meta Data Signature (default)\n"
 225         "\t2 - Adapter Serial Number");
 226
 227
 228 static inline int aac_valid_context(struct scsi_cmnd *scsicmd,
 229                 struct fib *fibptr) {
 230         struct scsi_device *device;
 231
 232         if (unlikely(!scsicmd || !scsicmd->scsi_done)) {
 233                 dprintk((KERN_WARNING "aac_valid_context: scsi command corrupt\n"));
 234                 aac_fib_complete(fibptr);
 235                 aac_fib_free(fibptr);
 236                 return 0;
 237         }
 238         scsicmd->SCp.phase = AAC_OWNER_MIDLEVEL;
 239         device = scsicmd->device;
 240         if (unlikely(!device || !scsi_device_online(device))) {
 241                 dprintk((KERN_WARNING "aac_valid_context: scsi device corrupt\n"));
 242                 aac_fib_complete(fibptr);
 243                 aac_fib_free(fibptr);
 244                 return 0;
 245         }
 246         return 1;
 247 }
 248
 249 /**
 250  *      aac_get_config_status   -       check the adapter configuration
 251  *      @common: adapter to query
 252  *
 253  *      Query config status, and commit the configuration if needed.
 254  */
 255 int aac_get_config_status(struct aac_dev *dev, int commit_flag)
 256 {
 257         int status = 0;
 258         struct fib * fibptr;
 259
 260         if (!(fibptr = aac_fib_alloc(dev)))
 261                 return -ENOMEM;
 262
 263         aac_fib_init(fibptr);
 264         {
 265                 struct aac_get_config_status *dinfo;
 266                 dinfo = (struct aac_get_config_status *) fib_data(fibptr);
 267
 268                 dinfo->command = cpu_to_le32(VM_ContainerConfig);
 269                 dinfo->type = cpu_to_le32(CT_GET_CONFIG_STATUS);
 270                 dinfo->count = cpu_to_le32(sizeof(((struct aac_get_config_status_resp *)NULL)->data));
 271         }
 272
 273         status = aac_fib_send(ContainerCommand,
 274                             fibptr,
 275                             sizeof (struct aac_get_config_status),
 276                             FsaNormal,
 277                             1, 1,
 278                             NULL, NULL);
 279         if (status < 0) {
 280                 printk(KERN_WARNING "aac_get_config_status: SendFIB failed.\n");
 281         } else {
 282                 struct aac_get_config_status_resp *reply
 283                   = (struct aac_get_config_status_resp *) fib_data(fibptr);
 284                 dprintk((KERN_WARNING
 285                   "aac_get_config_status: response=%d status=%d action=%d\n",
 286                   le32_to_cpu(reply->response),
 287                   le32_to_cpu(reply->status),
 288                   le32_to_cpu(reply->data.action)));
 289                 if ((le32_to_cpu(reply->response) != ST_OK) ||
 290                      (le32_to_cpu(reply->status) != CT_OK) ||
 291                      (le32_to_cpu(reply->data.action) > CFACT_PAUSE)) {
 292                         printk(KERN_WARNING "aac_get_config_status: Will not issue the Commit Configuration\n");
 293                         status = -EINVAL;
 294                 }
 295         }
 296         /* Do not set XferState to zero unless receives a response from F/W */
 297         if (status >= 0)
 298                 aac_fib_complete(fibptr);
 299
 300         /* Send a CT_COMMIT_CONFIG to enable discovery of devices */
 301         if (status >= 0) {
 302                 if ((aac_commit == 1) || commit_flag) {
 303                         struct aac_commit_config * dinfo;
 304                         aac_fib_init(fibptr);
 305                         dinfo = (struct aac_commit_config *) fib_data(fibptr);
 306
 307                         dinfo->command = cpu_to_le32(VM_ContainerConfig);
 308                         dinfo->type = cpu_to_le32(CT_COMMIT_CONFIG);
 309
 310                         status = aac_fib_send(ContainerCommand,
 311                                     fibptr,
 312                                     sizeof (struct aac_commit_config),
 313                                     FsaNormal,
 314                                     1, 1,
 315                                     NULL, NULL);
 316                         /* Do not set XferState to zero unless
 317                          * receives a response from F/W */
 318                         if (status >= 0)
 319                                 aac_fib_complete(fibptr);
 320                 } else if (aac_commit == 0) {
 321                         printk(KERN_WARNING
 322                           "aac_get_config_status: Foreign device configurations are being ignored\n");
 323                 }
 324         }
 325         /* FIB should be freed only after getting the response from the F/W */
 326         if (status != -ERESTARTSYS)
 327                 aac_fib_free(fibptr);
 328         return status;
 329 }
 330
 331 /**
 332  *      aac_get_containers      -       list containers
 333  *      @common: adapter to probe
 334  *
 335  *      Make a list of all containers on this controller
 336  */
 337 int aac_get_containers(struct aac_dev *dev)
 338 {
 339         struct fsa_dev_info *fsa_dev_ptr;
 340         u32 index;
 341         int status = 0;
 342         struct fib * fibptr;
 343         struct aac_get_container_count *dinfo;
 344         struct aac_get_container_count_resp *dresp;
 345         int maximum_num_containers = MAXIMUM_NUM_CONTAINERS;
 346
 347         if (!(fibptr = aac_fib_alloc(dev)))
 348                 return -ENOMEM;
 349
 350         aac_fib_init(fibptr);
 351         dinfo = (struct aac_get_container_count *) fib_data(fibptr);
 352         dinfo->command = cpu_to_le32(VM_ContainerConfig);
 353         dinfo->type = cpu_to_le32(CT_GET_CONTAINER_COUNT);
 354
 355         status = aac_fib_send(ContainerCommand,
 356                     fibptr,
 357                     sizeof (struct aac_get_container_count),
 358                     FsaNormal,
 359                     1, 1,
 360                     NULL, NULL);
 361         if (status >= 0) {
 362                 dresp = (struct aac_get_container_count_resp *)fib_data(fibptr);
 363                 maximum_num_containers = le32_to_cpu(dresp->ContainerSwitchEntries);
 364                 aac_fib_complete(fibptr);
 365         }
 366         /* FIB should be freed only after getting the response from the F/W */
 367         if (status != -ERESTARTSYS)
 368                 aac_fib_free(fibptr);
 369
 370         if (maximum_num_containers < MAXIMUM_NUM_CONTAINERS)
 371                 maximum_num_containers = MAXIMUM_NUM_CONTAINERS;
 372         fsa_dev_ptr = kzalloc(sizeof(*fsa_dev_ptr) * maximum_num_containers,
 373                         GFP_KERNEL);
 374         if (!fsa_dev_ptr)
 375                 return -ENOMEM;
 376
 377         dev->fsa_dev = fsa_dev_ptr;
 378         dev->maximum_num_containers = maximum_num_containers;
 379
 380         for (index = 0; index < dev->maximum_num_containers; ) {
 381                 fsa_dev_ptr[index].devname[0] = '\0';
 382
 383                 status = aac_probe_container(dev, index);
 384
 385                 if (status < 0) {
 386                         printk(KERN_WARNING "aac_get_containers: SendFIB failed.\n");
 387                         break;
 388                 }
 389
 390                 /*
 391                  *      If there are no more containers, then stop asking.
 392                  */
 393                 if (++index >= status)
 394                         break;
 395         }
 396         return status;
 397 }
 398
 399 static void get_container_name_callback(void *context, struct fib * fibptr)
 400 {
 401         struct aac_get_name_resp * get_name_reply;
 402         struct scsi_cmnd * scsicmd;
 403
 404         scsicmd = (struct scsi_cmnd *) context;
 405
 406         if (!aac_valid_context(scsicmd, fibptr))
 407                 return;
 408
 409         dprintk((KERN_DEBUG "get_container_name_callback[cpu %d]: t = %ld.\n", smp_processor_id(), jiffies));
 410         BUG_ON(fibptr == NULL);
 411
 412         get_name_reply = (struct aac_get_name_resp *) fib_data(fibptr);
 413         /* Failure is irrelevant, using default value instead */
 414         if ((le32_to_cpu(get_name_reply->status) == CT_OK)
 415          && (get_name_reply->data[0] != '\0')) {
 416                 char *sp = get_name_reply->data;
 417                 sp[sizeof(((struct aac_get_name_resp *)NULL)->data)-1] = '\0';
 418                 while (*sp == ' ')
 419                         ++sp;
 420                 if (*sp) {
 421                         struct inquiry_data inq;
 422                         char d[sizeof(((struct inquiry_data *)NULL)->inqd_pid)];
 423                         int count = sizeof(d);
 424                         char *dp = d;
 425                         do {
 426                                 *dp++ = (*sp) ? *sp++ : ' ';
 427                         } while (--count > 0);
 428
 429                         scsi_sg_copy_to_buffer(scsicmd, &inq, sizeof(inq));
 430                         memcpy(inq.inqd_pid, d, sizeof(d));
 431                         scsi_sg_copy_from_buffer(scsicmd, &inq, sizeof(inq));
 432                 }
 433         }
 434
 435         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
 436
 437         aac_fib_complete(fibptr);
 438         aac_fib_free(fibptr);
 439         scsicmd->scsi_done(scsicmd);
 440 }
 441
 442 /**
 443  *      aac_get_container_name  -       get container name, none blocking.
 444  */
 445 static int aac_get_container_name(struct scsi_cmnd * scsicmd)
 446 {
 447         int status;
 448         struct aac_get_name *dinfo;
 449         struct fib * cmd_fibcontext;
 450         struct aac_dev * dev;
 451
 452         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
 453
 454         if (!(cmd_fibcontext = aac_fib_alloc(dev)))
 455                 return -ENOMEM;
 456
 457         aac_fib_init(cmd_fibcontext);
 458         dinfo = (struct aac_get_name *) fib_data(cmd_fibcontext);
 459
 460         dinfo->command = cpu_to_le32(VM_ContainerConfig);
 461         dinfo->type = cpu_to_le32(CT_READ_NAME);
 462         dinfo->cid = cpu_to_le32(scmd_id(scsicmd));
 463         dinfo->count = cpu_to_le32(sizeof(((struct aac_get_name_resp *)NULL)->data));
 464
 465         status = aac_fib_send(ContainerCommand,
 466                   cmd_fibcontext,
 467                   sizeof (struct aac_get_name),
 468                   FsaNormal,
 469                   0, 1,
 470                   (fib_callback)get_container_name_callback,
 471                   (void *) scsicmd);
 472
 473         /*
 474          *      Check that the command queued to the controller
 475          */
 476         if (status == -EINPROGRESS) {
 477                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
 478                 return 0;
 479         }
 480
 481         printk(KERN_WARNING "aac_get_container_name: aac_fib_send failed with status: %d.\n", status);
 482         aac_fib_complete(cmd_fibcontext);
 483         aac_fib_free(cmd_fibcontext);
 484         return -1;
 485 }
 486
 487 static int aac_probe_container_callback2(struct scsi_cmnd * scsicmd)
 488 {
 489         struct fsa_dev_info *fsa_dev_ptr = ((struct aac_dev *)(scsicmd->device->host->hostdata))->fsa_dev;
 490
 491         if ((fsa_dev_ptr[scmd_id(scsicmd)].valid & 1))
 492                 return aac_scsi_cmd(scsicmd);
 493
 494         scsicmd->result = DID_NO_CONNECT << 16;
 495         scsicmd->scsi_done(scsicmd);
 496         return 0;
 497 }
 498
 499 static void _aac_probe_container2(void * context, struct fib * fibptr)
 500 {
 501         struct fsa_dev_info *fsa_dev_ptr;
 502         int (*callback)(struct scsi_cmnd *);
 503         struct scsi_cmnd * scsicmd = (struct scsi_cmnd *)context;
 504
 505
 506         if (!aac_valid_context(scsicmd, fibptr))
 507                 return;
 508
 509         scsicmd->SCp.Status = 0;
 510         fsa_dev_ptr = fibptr->dev->fsa_dev;
 511         if (fsa_dev_ptr) {
 512                 struct aac_mount * dresp = (struct aac_mount *) fib_data(fibptr);
 513                 fsa_dev_ptr += scmd_id(scsicmd);
 514
 515                 if ((le32_to_cpu(dresp->status) == ST_OK) &&
 516                     (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE) &&
 517                     (le32_to_cpu(dresp->mnt[0].state) != FSCS_HIDDEN)) {
 518                         fsa_dev_ptr->valid = 1;
 519                         /* sense_key holds the current state of the spin-up */
 520                         if (dresp->mnt[0].state & cpu_to_le32(FSCS_NOT_READY))
 521                                 fsa_dev_ptr->sense_data.sense_key = NOT_READY;
 522                         else if (fsa_dev_ptr->sense_data.sense_key == NOT_READY)
 523                                 fsa_dev_ptr->sense_data.sense_key = NO_SENSE;
 524                         fsa_dev_ptr->type = le32_to_cpu(dresp->mnt[0].vol);
 525                         fsa_dev_ptr->size
 526                           = ((u64)le32_to_cpu(dresp->mnt[0].capacity)) +
 527                             (((u64)le32_to_cpu(dresp->mnt[0].capacityhigh)) << 32);
 528                         fsa_dev_ptr->ro = ((le32_to_cpu(dresp->mnt[0].state) & FSCS_READONLY) != 0);
 529                 }
 530                 if ((fsa_dev_ptr->valid & 1) == 0)
 531                         fsa_dev_ptr->valid = 0;
 532                 scsicmd->SCp.Status = le32_to_cpu(dresp->count);
 533         }
 534         aac_fib_complete(fibptr);
 535         aac_fib_free(fibptr);
 536         callback = (int (*)(struct scsi_cmnd *))(scsicmd->SCp.ptr);
 537         scsicmd->SCp.ptr = NULL;
 538         (*callback)(scsicmd);
 539         return;
 540 }
 541
 542 static void _aac_probe_container1(void * context, struct fib * fibptr)
 543 {
 544         struct scsi_cmnd * scsicmd;
 545         struct aac_mount * dresp;
 546         struct aac_query_mount *dinfo;
 547         int status;
 548
 549         dresp = (struct aac_mount *) fib_data(fibptr);
 550         dresp->mnt[0].capacityhigh = 0;
 551         if ((le32_to_cpu(dresp->status) != ST_OK) ||
 552             (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE)) {
 553                 _aac_probe_container2(context, fibptr);
 554                 return;
 555         }
 556         scsicmd = (struct scsi_cmnd *) context;
 557
 558         if (!aac_valid_context(scsicmd, fibptr))
 559                 return;
 560
 561         aac_fib_init(fibptr);
 562
 563         dinfo = (struct aac_query_mount *)fib_data(fibptr);
 564
 565         dinfo->command = cpu_to_le32(VM_NameServe64);
 566         dinfo->count = cpu_to_le32(scmd_id(scsicmd));
 567         dinfo->type = cpu_to_le32(FT_FILESYS);
 568
 569         status = aac_fib_send(ContainerCommand,
 570                           fibptr,
 571                           sizeof(struct aac_query_mount),
 572                           FsaNormal,
 573                           0, 1,
 574                           _aac_probe_container2,
 575                           (void *) scsicmd);
 576         /*
 577          *      Check that the command queued to the controller
 578          */
 579         if (status == -EINPROGRESS)
 580                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
 581         else if (status < 0) {
 582                 /* Inherit results from VM_NameServe, if any */
 583                 dresp->status = cpu_to_le32(ST_OK);
 584                 _aac_probe_container2(context, fibptr);
 585         }
 586 }
 587
 588 static int _aac_probe_container(struct scsi_cmnd * scsicmd, int (*callback)(struct scsi_cmnd *))
 589 {
 590         struct fib * fibptr;
 591         int status = -ENOMEM;
 592
 593         if ((fibptr = aac_fib_alloc((struct aac_dev *)scsicmd->device->host->hostdata))) {
 594                 struct aac_query_mount *dinfo;
 595
 596                 aac_fib_init(fibptr);
 597
 598                 dinfo = (struct aac_query_mount *)fib_data(fibptr);
 599
 600                 dinfo->command = cpu_to_le32(VM_NameServe);
 601                 dinfo->count = cpu_to_le32(scmd_id(scsicmd));
 602                 dinfo->type = cpu_to_le32(FT_FILESYS);
 603                 scsicmd->SCp.ptr = (char *)callback;
 604
 605                 status = aac_fib_send(ContainerCommand,
 606                           fibptr,
 607                           sizeof(struct aac_query_mount),
 608                           FsaNormal,
 609                           0, 1,
 610                           _aac_probe_container1,
 611                           (void *) scsicmd);
 612                 /*
 613                  *      Check that the command queued to the controller
 614                  */
 615                 if (status == -EINPROGRESS) {
 616                         scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
 617                         return 0;
 618                 }
 619                 if (status < 0) {
 620                         scsicmd->SCp.ptr = NULL;
 621                         aac_fib_complete(fibptr);
 622                         aac_fib_free(fibptr);
 623                 }
 624         }
 625         if (status < 0) {
 626                 struct fsa_dev_info *fsa_dev_ptr = ((struct aac_dev *)(scsicmd->device->host->hostdata))->fsa_dev;
 627                 if (fsa_dev_ptr) {
 628                         fsa_dev_ptr += scmd_id(scsicmd);
 629                         if ((fsa_dev_ptr->valid & 1) == 0) {
 630                                 fsa_dev_ptr->valid = 0;
 631                                 return (*callback)(scsicmd);
 632                         }
 633                 }
 634         }
 635         return status;
 636 }
 637
 638 /**
 639  *      aac_probe_container             -       query a logical volume
 640  *      @dev: device to query
 641  *      @cid: container identifier
 642  *
 643  *      Queries the controller about the given volume. The volume information
 644  *      is updated in the struct fsa_dev_info structure rather than returned.
 645  */
 646 static int aac_probe_container_callback1(struct scsi_cmnd * scsicmd)
 647 {
 648         scsicmd->device = NULL;
 649         return 0;
 650 }
 651
 652 int aac_probe_container(struct aac_dev *dev, int cid)
 653 {
 654         struct scsi_cmnd *scsicmd = kmalloc(sizeof(*scsicmd), GFP_KERNEL);
 655         struct scsi_device *scsidev = kmalloc(sizeof(*scsidev), GFP_KERNEL);
 656         int status;
 657
 658         if (!scsicmd || !scsidev) {
 659                 kfree(scsicmd);
 660                 kfree(scsidev);
 661                 return -ENOMEM;
 662         }
 663         scsicmd->list.next = NULL;
 664         scsicmd->scsi_done = (void (*)(struct scsi_cmnd*))aac_probe_container_callback1;
 665
 666         scsicmd->device = scsidev;
 667         scsidev->sdev_state = 0;
 668         scsidev->id = cid;
 669         scsidev->host = dev->scsi_host_ptr;
 670
 671         if (_aac_probe_container(scsicmd, aac_probe_container_callback1) == 0)
 672                 while (scsicmd->device == scsidev)
 673                         schedule();
 674         kfree(scsidev);
 675         status = scsicmd->SCp.Status;
 676         kfree(scsicmd);
 677         return status;
 678 }
 679
 680 /* Local Structure to set SCSI inquiry data strings */
 681 struct scsi_inq {
 682         char vid[8];         /* Vendor ID */
 683         char pid[16];        /* Product ID */
 684         char prl[4];         /* Product Revision Level */
 685 };
 686
 687 /**
 688  *      InqStrCopy      -       string merge
 689  *      @a:     string to copy from
 690  *      @b:     string to copy to
 691  *
 692  *      Copy a String from one location to another
 693  *      without copying \0
 694  */
 695
 696 static void inqstrcpy(char *a, char *b)
 697 {
 698
 699         while (*a != (char)0)
 700                 *b++ = *a++;
 701 }
 702
 703 static char *container_types[] = {
 704         "None",
 705         "Volume",
 706         "Mirror",
 707         "Stripe",
 708         "RAID5",
 709         "SSRW",
 710         "SSRO",
 711         "Morph",
 712         "Legacy",
 713         "RAID4",
 714         "RAID10",
 715         "RAID00",
 716         "V-MIRRORS",
 717         "PSEUDO R4",
 718         "RAID50",
 719         "RAID5D",
 720         "RAID5D0",
 721         "RAID1E",
 722         "RAID6",
 723         "RAID60",
 724         "Unknown"
 725 };
 726
 727 char * get_container_type(unsigned tindex)
 728 {
 729         if (tindex >= ARRAY_SIZE(container_types))
 730                 tindex = ARRAY_SIZE(container_types) - 1;
 731         return container_types[tindex];
 732 }
 733
 734 /* Function: setinqstr
 735  *
 736  * Arguments: [1] pointer to void [1] int
 737  *
 738  * Purpose: Sets SCSI inquiry data strings for vendor, product
 739  * and revision level. Allows strings to be set in platform dependant
 740  * files instead of in OS dependant driver source.
 741  */
 742
 743 static void setinqstr(struct aac_dev *dev, void *data, int tindex)
 744 {
 745         struct scsi_inq *str;
 746
 747         str = (struct scsi_inq *)(data); /* cast data to scsi inq block */
 748         memset(str, ' ', sizeof(*str));
 749
 750         if (dev->supplement_adapter_info.AdapterTypeText[0]) {
 751                 char * cp = dev->supplement_adapter_info.AdapterTypeText;
 752                 int c;
 753                 if ((cp[0] == 'A') && (cp[1] == 'O') && (cp[2] == 'C'))
 754                         inqstrcpy("SMC", str->vid);
 755                 else {
 756                         c = sizeof(str->vid);
 757                         while (*cp && *cp != ' ' && --c)
 758                                 ++cp;
 759                         c = *cp;
 760                         *cp = '\0';
 761                         inqstrcpy (dev->supplement_adapter_info.AdapterTypeText,
 762                                    str->vid);
 763                         *cp = c;
 764                         while (*cp && *cp != ' ')
 765                                 ++cp;
 766                 }
 767                 while (*cp == ' ')
 768                         ++cp;
 769                 /* last six chars reserved for vol type */
 770                 c = 0;
 771                 if (strlen(cp) > sizeof(str->pid)) {
 772                         c = cp[sizeof(str->pid)];
 773                         cp[sizeof(str->pid)] = '\0';
 774                 }
 775                 inqstrcpy (cp, str->pid);
 776                 if (c)
 777                         cp[sizeof(str->pid)] = c;
 778         } else {
 779                 struct aac_driver_ident *mp = aac_get_driver_ident(dev->cardtype);
 780
 781                 inqstrcpy (mp->vname, str->vid);
 782                 /* last six chars reserved for vol type */
 783                 inqstrcpy (mp->model, str->pid);
 784         }
 785
 786         if (tindex < ARRAY_SIZE(container_types)){
 787                 char *findit = str->pid;
 788
 789                 for ( ; *findit != ' '; findit++); /* walk till we find a space */
 790                 /* RAID is superfluous in the context of a RAID device */
 791                 if (memcmp(findit-4, "RAID", 4) == 0)
 792                         *(findit -= 4) = ' ';
 793                 if (((findit - str->pid) + strlen(container_types[tindex]))
 794                  < (sizeof(str->pid) + sizeof(str->prl)))
 795                         inqstrcpy (container_types[tindex], findit + 1);
 796         }
 797         inqstrcpy ("V1.0", str->prl);
 798 }
 799
 800 static void get_container_serial_callback(void *context, struct fib * fibptr)
 801 {
 802         struct aac_get_serial_resp * get_serial_reply;
 803         struct scsi_cmnd * scsicmd;
 804
 805         BUG_ON(fibptr == NULL);
 806
 807         scsicmd = (struct scsi_cmnd *) context;
 808         if (!aac_valid_context(scsicmd, fibptr))
 809                 return;
 810
 811         get_serial_reply = (struct aac_get_serial_resp *) fib_data(fibptr);
 812         /* Failure is irrelevant, using default value instead */
 813         if (le32_to_cpu(get_serial_reply->status) == CT_OK) {
 814                 char sp[13];
 815                 /* EVPD bit set */
 816                 sp[0] = INQD_PDT_DA;
 817                 sp[1] = scsicmd->cmnd[2];
 818                 sp[2] = 0;
 819                 sp[3] = snprintf(sp+4, sizeof(sp)-4, "%08X",
 820                   le32_to_cpu(get_serial_reply->uid));
 821                 scsi_sg_copy_from_buffer(scsicmd, sp, sizeof(sp));
 822         }
 823
 824         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
 825
 826         aac_fib_complete(fibptr);
 827         aac_fib_free(fibptr);
 828         scsicmd->scsi_done(scsicmd);
 829 }
 830
 831 /**
 832  *      aac_get_container_serial - get container serial, none blocking.
 833  */
 834 static int aac_get_container_serial(struct scsi_cmnd * scsicmd)
 835 {
 836         int status;
 837         struct aac_get_serial *dinfo;
 838         struct fib * cmd_fibcontext;
 839         struct aac_dev * dev;
 840
 841         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
 842
 843         if (!(cmd_fibcontext = aac_fib_alloc(dev)))
 844                 return -ENOMEM;
 845
 846         aac_fib_init(cmd_fibcontext);
 847         dinfo = (struct aac_get_serial *) fib_data(cmd_fibcontext);
 848
 849         dinfo->command = cpu_to_le32(VM_ContainerConfig);
 850         dinfo->type = cpu_to_le32(CT_CID_TO_32BITS_UID);
 851         dinfo->cid = cpu_to_le32(scmd_id(scsicmd));
 852
 853         status = aac_fib_send(ContainerCommand,
 854                   cmd_fibcontext,
 855                   sizeof (struct aac_get_serial),
 856                   FsaNormal,
 857                   0, 1,
 858                   (fib_callback) get_container_serial_callback,
 859                   (void *) scsicmd);
 860
 861         /*
 862          *      Check that the command queued to the controller
 863          */
 864         if (status == -EINPROGRESS) {
 865                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
 866                 return 0;
 867         }
 868
 869         printk(KERN_WARNING "aac_get_container_serial: aac_fib_send failed with status: %d.\n", status);
 870         aac_fib_complete(cmd_fibcontext);
 871         aac_fib_free(cmd_fibcontext);
 872         return -1;
 873 }
 874
 875 /* Function: setinqserial
 876  *
 877  * Arguments: [1] pointer to void [1] int
 878  *
 879  * Purpose: Sets SCSI Unit Serial number.
 880  *          This is a fake. We should read a proper
 881  *          serial number from the container. <SuSE>But
 882  *          without docs it's quite hard to do it :-)
 883  *          So this will have to do in the meantime.</SuSE>
 884  */
 885
 886 static int setinqserial(struct aac_dev *dev, void *data, int cid)
 887 {
 888         /*
 889          *      This breaks array migration.
 890          */
 891         return snprintf((char *)(data), sizeof(struct scsi_inq) - 4, "%08X%02X",
 892                         le32_to_cpu(dev->adapter_info.serial[0]), cid);
 893 }
 894
 895 static inline void set_sense(struct sense_data *sense_data, u8 sense_key,
 896         u8 sense_code, u8 a_sense_code, u8 bit_pointer, u16 field_pointer)
 897 {
 898         u8 *sense_buf = (u8 *)sense_data;
 899         /* Sense data valid, err code 70h */
 900         sense_buf[0] = 0x70; /* No info field */
 901         sense_buf[1] = 0;       /* Segment number, always zero */
 902
 903         sense_buf[2] = sense_key;       /* Sense key */
 904
 905         sense_buf[12] = sense_code;     /* Additional sense code */
 906         sense_buf[13] = a_sense_code;   /* Additional sense code qualifier */
 907
 908         if (sense_key == ILLEGAL_REQUEST) {
 909                 sense_buf[7] = 10;      /* Additional sense length */
 910
 911                 sense_buf[15] = bit_pointer;
 912                 /* Illegal parameter is in the parameter block */
 913                 if (sense_code == SENCODE_INVALID_CDB_FIELD)
 914                         sense_buf[15] |= 0xc0;/* Std sense key specific field */
 915                 /* Illegal parameter is in the CDB block */
 916                 sense_buf[16] = field_pointer >> 8;     /* MSB */
 917                 sense_buf[17] = field_pointer;          /* LSB */
 918         } else
 919                 sense_buf[7] = 6;       /* Additional sense length */
 920 }
 921
 922 static int aac_bounds_32(struct aac_dev * dev, struct scsi_cmnd * cmd, u64 lba)
 923 {
 924         if (lba & 0xffffffff00000000LL) {
 925                 int cid = scmd_id(cmd);
 926                 dprintk((KERN_DEBUG "aacraid: Illegal lba\n"));
 927                 cmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 |
 928                         SAM_STAT_CHECK_CONDITION;
 929                 set_sense(&dev->fsa_dev[cid].sense_data,
 930                   HARDWARE_ERROR, SENCODE_INTERNAL_TARGET_FAILURE,
 931                   ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0);
 932                 memcpy(cmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
 933                        min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
 934                              SCSI_SENSE_BUFFERSIZE));
 935                 cmd->scsi_done(cmd);
 936                 return 1;
 937         }
 938         return 0;
 939 }
 940
 941 static int aac_bounds_64(struct aac_dev * dev, struct scsi_cmnd * cmd, u64 lba)
 942 {
 943         return 0;
 944 }
 945
 946 static void io_callback(void *context, struct fib * fibptr);
 947
 948 static int aac_read_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count)
 949 {
 950         u16 fibsize;
 951         struct aac_raw_io *readcmd;
 952         aac_fib_init(fib);
 953         readcmd = (struct aac_raw_io *) fib_data(fib);
 954         readcmd->block[0] = cpu_to_le32((u32)(lba&0xffffffff));
 955         readcmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
 956         readcmd->count = cpu_to_le32(count<<9);
 957         readcmd->cid = cpu_to_le16(scmd_id(cmd));
 958         readcmd->flags = cpu_to_le16(IO_TYPE_READ);
 959         readcmd->bpTotal = 0;
 960         readcmd->bpComplete = 0;
 961
 962         aac_build_sgraw(cmd, &readcmd->sg);
 963         fibsize = sizeof(struct aac_raw_io) + ((le32_to_cpu(readcmd->sg.count) - 1) * sizeof (struct sgentryraw));
 964         BUG_ON(fibsize > (fib->dev->max_fib_size - sizeof(struct aac_fibhdr)));
 965         /*
 966          *      Now send the Fib to the adapter
 967          */
 968         return aac_fib_send(ContainerRawIo,
 969                           fib,
 970                           fibsize,
 971                           FsaNormal,
 972                           0, 1,
 973                           (fib_callback) io_callback,
 974                           (void *) cmd);
 975 }
 976
 977 static int aac_read_block64(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count)
 978 {
 979         u16 fibsize;
 980         struct aac_read64 *readcmd;
 981         aac_fib_init(fib);
 982         readcmd = (struct aac_read64 *) fib_data(fib);
 983         readcmd->command = cpu_to_le32(VM_CtHostRead64);
 984         readcmd->cid = cpu_to_le16(scmd_id(cmd));
 985         readcmd->sector_count = cpu_to_le16(count);
 986         readcmd->block = cpu_to_le32((u32)(lba&0xffffffff));
 987         readcmd->pad   = 0;
 988         readcmd->flags = 0;
 989
 990         aac_build_sg64(cmd, &readcmd->sg);
 991         fibsize = sizeof(struct aac_read64) +
 992                 ((le32_to_cpu(readcmd->sg.count) - 1) *
 993                  sizeof (struct sgentry64));
 994         BUG_ON (fibsize > (fib->dev->max_fib_size -
 995                                 sizeof(struct aac_fibhdr)));
 996         /*
 997          *      Now send the Fib to the adapter
 998          */
 999         return aac_fib_send(ContainerCommand64,
1000                           fib,
1001                           fibsize,
1002                           FsaNormal,
1003                           0, 1,
1004                           (fib_callback) io_callback,
1005                           (void *) cmd);
1006 }
1007
1008 static int aac_read_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count)
1009 {
1010         u16 fibsize;
1011         struct aac_read *readcmd;
1012         aac_fib_init(fib);
1013         readcmd = (struct aac_read *) fib_data(fib);
1014         readcmd->command = cpu_to_le32(VM_CtBlockRead);
1015         readcmd->cid = cpu_to_le32(scmd_id(cmd));
1016         readcmd->block = cpu_to_le32((u32)(lba&0xffffffff));
1017         readcmd->count = cpu_to_le32(count * 512);
1018
1019         aac_build_sg(cmd, &readcmd->sg);
1020         fibsize = sizeof(struct aac_read) +
1021                         ((le32_to_cpu(readcmd->sg.count) - 1) *
1022                          sizeof (struct sgentry));
1023         BUG_ON (fibsize > (fib->dev->max_fib_size -
1024                                 sizeof(struct aac_fibhdr)));
1025         /*
1026          *      Now send the Fib to the adapter
1027          */
1028         return aac_fib_send(ContainerCommand,
1029                           fib,
1030                           fibsize,
1031                           FsaNormal,
1032                           0, 1,
1033                           (fib_callback) io_callback,
1034                           (void *) cmd);
1035 }
1036
1037 static int aac_write_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count, int fua)
1038 {
1039         u16 fibsize;
1040         struct aac_raw_io *writecmd;
1041         aac_fib_init(fib);
1042         writecmd = (struct aac_raw_io *) fib_data(fib);
1043         writecmd->block[0] = cpu_to_le32((u32)(lba&0xffffffff));
1044         writecmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
1045         writecmd->count = cpu_to_le32(count<<9);
1046         writecmd->cid = cpu_to_le16(scmd_id(cmd));
1047         writecmd->flags = (fua && ((aac_cache & 5) != 1) &&
1048           (((aac_cache & 5) != 5) || !fib->dev->cache_protected)) ?
1049                 cpu_to_le16(IO_TYPE_WRITE|IO_SUREWRITE) :
1050                 cpu_to_le16(IO_TYPE_WRITE);
1051         writecmd->bpTotal = 0;
1052         writecmd->bpComplete = 0;
1053
1054         aac_build_sgraw(cmd, &writecmd->sg);
1055         fibsize = sizeof(struct aac_raw_io) + ((le32_to_cpu(writecmd->sg.count) - 1) * sizeof (struct sgentryraw));
1056         BUG_ON(fibsize > (fib->dev->max_fib_size - sizeof(struct aac_fibhdr)));
1057         /*
1058          *      Now send the Fib to the adapter
1059          */
1060         return aac_fib_send(ContainerRawIo,
1061                           fib,
1062                           fibsize,
1063                           FsaNormal,
1064                           0, 1,
1065                           (fib_callback) io_callback,
1066                           (void *) cmd);
1067 }
1068
1069 static int aac_write_block64(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count, int fua)
1070 {
1071         u16 fibsize;
1072         struct aac_write64 *writecmd;
1073         aac_fib_init(fib);
1074         writecmd = (struct aac_write64 *) fib_data(fib);
1075         writecmd->command = cpu_to_le32(VM_CtHostWrite64);
1076         writecmd->cid = cpu_to_le16(scmd_id(cmd));
1077         writecmd->sector_count = cpu_to_le16(count);
1078         writecmd->block = cpu_to_le32((u32)(lba&0xffffffff));
1079         writecmd->pad   = 0;
1080         writecmd->flags = 0;
1081
1082         aac_build_sg64(cmd, &writecmd->sg);
1083         fibsize = sizeof(struct aac_write64) +
1084                 ((le32_to_cpu(writecmd->sg.count) - 1) *
1085                  sizeof (struct sgentry64));
1086         BUG_ON (fibsize > (fib->dev->max_fib_size -
1087                                 sizeof(struct aac_fibhdr)));
1088         /*
1089          *      Now send the Fib to the adapter
1090          */
1091         return aac_fib_send(ContainerCommand64,
1092                           fib,
1093                           fibsize,
1094                           FsaNormal,
1095                           0, 1,
1096                           (fib_callback) io_callback,
1097                           (void *) cmd);
1098 }
1099
1100 static int aac_write_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count, int fua)
1101 {
1102         u16 fibsize;
1103         struct aac_write *writecmd;
1104         aac_fib_init(fib);
1105         writecmd = (struct aac_write *) fib_data(fib);
1106         writecmd->command = cpu_to_le32(VM_CtBlockWrite);
1107         writecmd->cid = cpu_to_le32(scmd_id(cmd));
1108         writecmd->block = cpu_to_le32((u32)(lba&0xffffffff));
1109         writecmd->count = cpu_to_le32(count * 512);
1110         writecmd->sg.count = cpu_to_le32(1);
1111         /* ->stable is not used - it did mean which type of write */
1112
1113         aac_build_sg(cmd, &writecmd->sg);
1114         fibsize = sizeof(struct aac_write) +
1115                 ((le32_to_cpu(writecmd->sg.count) - 1) *
1116                  sizeof (struct sgentry));
1117         BUG_ON (fibsize > (fib->dev->max_fib_size -
1118                                 sizeof(struct aac_fibhdr)));
1119         /*
1120          *      Now send the Fib to the adapter
1121          */
1122         return aac_fib_send(ContainerCommand,
1123                           fib,
1124                           fibsize,
1125                           FsaNormal,
1126                           0, 1,
1127                           (fib_callback) io_callback,
1128                           (void *) cmd);
1129 }
1130
1131 static struct aac_srb * aac_scsi_common(struct fib * fib, struct scsi_cmnd * cmd)
1132 {
1133         struct aac_srb * srbcmd;
1134         u32 flag;
1135         u32 timeout;
1136
1137         aac_fib_init(fib);
1138         switch(cmd->sc_data_direction){
1139         case DMA_TO_DEVICE:
1140                 flag = SRB_DataOut;
1141                 break;
1142         case DMA_BIDIRECTIONAL:
1143                 flag = SRB_DataIn | SRB_DataOut;
1144                 break;
1145         case DMA_FROM_DEVICE:
1146                 flag = SRB_DataIn;
1147                 break;
1148         case DMA_NONE:
1149         default:        /* shuts up some versions of gcc */
1150                 flag = SRB_NoDataXfer;
1151                 break;
1152         }
1153
1154         srbcmd = (struct aac_srb*) fib_data(fib);
1155         srbcmd->function = cpu_to_le32(SRBF_ExecuteScsi);
1156         srbcmd->channel  = cpu_to_le32(aac_logical_to_phys(scmd_channel(cmd)));
1157         srbcmd->id       = cpu_to_le32(scmd_id(cmd));
1158         srbcmd->lun      = cpu_to_le32(cmd->device->lun);
1159         srbcmd->flags    = cpu_to_le32(flag);
1160         timeout = cmd->request->timeout/HZ;
1161         if (timeout == 0)
1162                 timeout = 1;
1163         srbcmd->timeout  = cpu_to_le32(timeout);  // timeout in seconds
1164         srbcmd->retry_limit = 0; /* Obsolete parameter */
1165         srbcmd->cdb_size = cpu_to_le32(cmd->cmd_len);
1166         return srbcmd;
1167 }
1168
1169 static void aac_srb_callback(void *context, struct fib * fibptr);
1170
1171 static int aac_scsi_64(struct fib * fib, struct scsi_cmnd * cmd)
1172 {
1173         u16 fibsize;
1174         struct aac_srb * srbcmd = aac_scsi_common(fib, cmd);
1175
1176         aac_build_sg64(cmd, (struct sgmap64*) &srbcmd->sg);
1177         srbcmd->count = cpu_to_le32(scsi_bufflen(cmd));
1178
1179         memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
1180         memcpy(srbcmd->cdb, cmd->cmnd, cmd->cmd_len);
1181         /*
1182          *      Build Scatter/Gather list
1183          */
1184         fibsize = sizeof (struct aac_srb) - sizeof (struct sgentry) +
1185                 ((le32_to_cpu(srbcmd->sg.count) & 0xff) *
1186                  sizeof (struct sgentry64));
1187         BUG_ON (fibsize > (fib->dev->max_fib_size -
1188                                 sizeof(struct aac_fibhdr)));
1189
1190         /*
1191          *      Now send the Fib to the adapter
1192          */
1193         return aac_fib_send(ScsiPortCommand64, fib,
1194                                 fibsize, FsaNormal, 0, 1,
1195                                   (fib_callback) aac_srb_callback,
1196                                   (void *) cmd);
1197 }
1198
1199 static int aac_scsi_32(struct fib * fib, struct scsi_cmnd * cmd)
1200 {
1201         u16 fibsize;
1202         struct aac_srb * srbcmd = aac_scsi_common(fib, cmd);
1203
1204         aac_build_sg(cmd, (struct sgmap*)&srbcmd->sg);
1205         srbcmd->count = cpu_to_le32(scsi_bufflen(cmd));
1206
1207         memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
1208         memcpy(srbcmd->cdb, cmd->cmnd, cmd->cmd_len);
1209         /*
1210          *      Build Scatter/Gather list
1211          */
1212         fibsize = sizeof (struct aac_srb) +
1213                 (((le32_to_cpu(srbcmd->sg.count) & 0xff) - 1) *
1214                  sizeof (struct sgentry));
1215         BUG_ON (fibsize > (fib->dev->max_fib_size -
1216                                 sizeof(struct aac_fibhdr)));
1217
1218         /*
1219          *      Now send the Fib to the adapter
1220          */
1221         return aac_fib_send(ScsiPortCommand, fib, fibsize, FsaNormal, 0, 1,
1222                                   (fib_callback) aac_srb_callback, (void *) cmd);
1223 }
1224
1225 static int aac_scsi_32_64(struct fib * fib, struct scsi_cmnd * cmd)
1226 {
1227         if ((sizeof(dma_addr_t) > 4) && fib->dev->needs_dac &&
1228             (fib->dev->adapter_info.options & AAC_OPT_SGMAP_HOST64))
1229                 return FAILED;
1230         return aac_scsi_32(fib, cmd);
1231 }
1232
1233 int aac_get_adapter_info(struct aac_dev* dev)
1234 {
1235         struct fib* fibptr;
1236         int rcode;
1237         u32 tmp;
1238         struct aac_adapter_info *info;
1239         struct aac_bus_info *command;
1240         struct aac_bus_info_response *bus_info;
1241
1242         if (!(fibptr = aac_fib_alloc(dev)))
1243                 return -ENOMEM;
1244
1245         aac_fib_init(fibptr);
1246         info = (struct aac_adapter_info *) fib_data(fibptr);
1247         memset(info,0,sizeof(*info));
1248
1249         rcode = aac_fib_send(RequestAdapterInfo,
1250                          fibptr,
1251                          sizeof(*info),
1252                          FsaNormal,
1253                          -1, 1, /* First `interrupt' command uses special wait */
1254                          NULL,
1255                          NULL);
1256
1257         if (rcode < 0) {
1258                 /* FIB should be freed only after
1259                  * getting the response from the F/W */
1260                 if (rcode != -ERESTARTSYS) {
1261                         aac_fib_complete(fibptr);
1262                         aac_fib_free(fibptr);
1263                 }
1264                 return rcode;
1265         }
1266         memcpy(&dev->adapter_info, info, sizeof(*info));
1267
1268         if (dev->adapter_info.options & AAC_OPT_SUPPLEMENT_ADAPTER_INFO) {
1269                 struct aac_supplement_adapter_info * sinfo;
1270
1271                 aac_fib_init(fibptr);
1272
1273                 sinfo = (struct aac_supplement_adapter_info *) fib_data(fibptr);
1274
1275                 memset(sinfo,0,sizeof(*sinfo));
1276
1277                 rcode = aac_fib_send(RequestSupplementAdapterInfo,
1278                                  fibptr,
1279                                  sizeof(*sinfo),
1280                                  FsaNormal,
1281                                  1, 1,
1282                                  NULL,
1283                                  NULL);
1284
1285                 if (rcode >= 0)
1286                         memcpy(&dev->supplement_adapter_info, sinfo, sizeof(*sinfo));
1287                 if (rcode == -ERESTARTSYS) {
1288                         fibptr = aac_fib_alloc(dev);
1289                         if (!fibptr)
1290                                 return -ENOMEM;
1291                 }
1292
1293         }
1294
1295
1296         /*
1297          * GetBusInfo
1298          */
1299
1300         aac_fib_init(fibptr);
1301
1302         bus_info = (struct aac_bus_info_response *) fib_data(fibptr);
1303
1304         memset(bus_info, 0, sizeof(*bus_info));
1305
1306         command = (struct aac_bus_info *)bus_info;
1307
1308         command->Command = cpu_to_le32(VM_Ioctl);
1309         command->ObjType = cpu_to_le32(FT_DRIVE);
1310         command->MethodId = cpu_to_le32(1);
1311         command->CtlCmd = cpu_to_le32(GetBusInfo);
1312
1313         rcode = aac_fib_send(ContainerCommand,
1314                          fibptr,
1315                          sizeof (*bus_info),
1316                          FsaNormal,
1317                          1, 1,
1318                          NULL, NULL);
1319
1320         /* reasoned default */
1321         dev->maximum_num_physicals = 16;
1322         if (rcode >= 0 && le32_to_cpu(bus_info->Status) == ST_OK) {
1323                 dev->maximum_num_physicals = le32_to_cpu(bus_info->TargetsPerBus);
1324                 dev->maximum_num_channels = le32_to_cpu(bus_info->BusCount);
1325         }
1326
1327         if (!dev->in_reset) {
1328                 char buffer[16];
1329                 tmp = le32_to_cpu(dev->adapter_info.kernelrev);
1330                 printk(KERN_INFO "%s%d: kernel %d.%d-%d[%d] %.*s\n",
1331                         dev->name,
1332                         dev->id,
1333                         tmp>>24,
1334                         (tmp>>16)&0xff,
1335                         tmp&0xff,
1336                         le32_to_cpu(dev->adapter_info.kernelbuild),
1337                         (int)sizeof(dev->supplement_adapter_info.BuildDate),
1338                         dev->supplement_adapter_info.BuildDate);
1339                 tmp = le32_to_cpu(dev->adapter_info.monitorrev);
1340                 printk(KERN_INFO "%s%d: monitor %d.%d-%d[%d]\n",
1341                         dev->name, dev->id,
1342                         tmp>>24,(tmp>>16)&0xff,tmp&0xff,
1343                         le32_to_cpu(dev->adapter_info.monitorbuild));
1344                 tmp = le32_to_cpu(dev->adapter_info.biosrev);
1345                 printk(KERN_INFO "%s%d: bios %d.%d-%d[%d]\n",
1346                         dev->name, dev->id,
1347                         tmp>>24,(tmp>>16)&0xff,tmp&0xff,
1348                         le32_to_cpu(dev->adapter_info.biosbuild));
1349                 buffer[0] = '\0';
1350                 if (aac_get_serial_number(
1351                   shost_to_class(dev->scsi_host_ptr), buffer))
1352                         printk(KERN_INFO "%s%d: serial %s",
1353                           dev->name, dev->id, buffer);
1354                 if (dev->supplement_adapter_info.VpdInfo.Tsid[0]) {
1355                         printk(KERN_INFO "%s%d: TSID %.*s\n",
1356                           dev->name, dev->id,
1357                           (int)sizeof(dev->supplement_adapter_info.VpdInfo.Tsid),
1358                           dev->supplement_adapter_info.VpdInfo.Tsid);
1359                 }
1360                 if (!aac_check_reset || ((aac_check_reset == 1) &&
1361                   (dev->supplement_adapter_info.SupportedOptions2 &
1362                   AAC_OPTION_IGNORE_RESET))) {
1363                         printk(KERN_INFO "%s%d: Reset Adapter Ignored\n",
1364                           dev->name, dev->id);
1365                 }
1366         }
1367
1368         dev->cache_protected = 0;
1369         dev->jbod = ((dev->supplement_adapter_info.FeatureBits &
1370                 AAC_FEATURE_JBOD) != 0);
1371         dev->nondasd_support = 0;
1372         dev->raid_scsi_mode = 0;
1373         if(dev->adapter_info.options & AAC_OPT_NONDASD)
1374                 dev->nondasd_support = 1;
1375
1376         /*
1377          * If the firmware supports ROMB RAID/SCSI mode and we are currently
1378          * in RAID/SCSI mode, set the flag. For now if in this mode we will
1379          * force nondasd support on. If we decide to allow the non-dasd flag
1380          * additional changes changes will have to be made to support
1381          * RAID/SCSI.  the function aac_scsi_cmd in this module will have to be
1382          * changed to support the new dev->raid_scsi_mode flag instead of
1383          * leaching off of the dev->nondasd_support flag. Also in linit.c the
1384          * function aac_detect will have to be modified where it sets up the
1385          * max number of channels based on the aac->nondasd_support flag only.
1386          */
1387         if ((dev->adapter_info.options & AAC_OPT_SCSI_MANAGED) &&
1388             (dev->adapter_info.options & AAC_OPT_RAID_SCSI_MODE)) {
1389                 dev->nondasd_support = 1;
1390                 dev->raid_scsi_mode = 1;
1391         }
1392         if (dev->raid_scsi_mode != 0)
1393                 printk(KERN_INFO "%s%d: ROMB RAID/SCSI mode enabled\n",
1394                                 dev->name, dev->id);
1395
1396         if (nondasd != -1)
1397                 dev->nondasd_support = (nondasd!=0);
1398         if (dev->nondasd_support && !dev->in_reset)
1399                 printk(KERN_INFO "%s%d: Non-DASD support enabled.\n",dev->name, dev->id);
1400
1401         if (dma_get_required_mask(&dev->pdev->dev) > DMA_BIT_MASK(32))
1402                 dev->needs_dac = 1;
1403         dev->dac_support = 0;
1404         if ((sizeof(dma_addr_t) > 4) && dev->needs_dac &&
1405             (dev->adapter_info.options & AAC_OPT_SGMAP_HOST64)) {
1406                 if (!dev->in_reset)
1407                         printk(KERN_INFO "%s%d: 64bit support enabled.\n",
1408                                 dev->name, dev->id);
1409                 dev->dac_support = 1;
1410         }
1411
1412         if(dacmode != -1) {
1413                 dev->dac_support = (dacmode!=0);
1414         }
1415
1416         /* avoid problems with AAC_QUIRK_SCSI_32 controllers */
1417         if (dev->dac_support && (aac_get_driver_ident(dev->cardtype)->quirks
1418                 & AAC_QUIRK_SCSI_32)) {
1419                 dev->nondasd_support = 0;
1420                 dev->jbod = 0;
1421                 expose_physicals = 0;
1422         }
1423
1424         if(dev->dac_support != 0) {
1425                 if (!pci_set_dma_mask(dev->pdev, DMA_BIT_MASK(64)) &&
1426                         !pci_set_consistent_dma_mask(dev->pdev, DMA_BIT_MASK(64))) {
1427                         if (!dev->in_reset)
1428                                 printk(KERN_INFO"%s%d: 64 Bit DAC enabled\n",
1429                                         dev->name, dev->id);
1430                 } else if (!pci_set_dma_mask(dev->pdev, DMA_BIT_MASK(32)) &&
1431                         !pci_set_consistent_dma_mask(dev->pdev, DMA_BIT_MASK(32))) {
1432                         printk(KERN_INFO"%s%d: DMA mask set failed, 64 Bit DAC disabled\n",
1433                                 dev->name, dev->id);
1434                         dev->dac_support = 0;
1435                 } else {
1436                         printk(KERN_WARNING"%s%d: No suitable DMA available.\n",
1437                                 dev->name, dev->id);
1438                         rcode = -ENOMEM;
1439                 }
1440         }
1441         /*
1442          * Deal with configuring for the individualized limits of each packet
1443          * interface.
1444          */
1445         dev->a_ops.adapter_scsi = (dev->dac_support)
1446           ? ((aac_get_driver_ident(dev->cardtype)->quirks & AAC_QUIRK_SCSI_32)
1447                                 ? aac_scsi_32_64
1448                                 : aac_scsi_64)
1449                                 : aac_scsi_32;
1450         if (dev->raw_io_interface) {
1451                 dev->a_ops.adapter_bounds = (dev->raw_io_64)
1452                                         ? aac_bounds_64
1453                                         : aac_bounds_32;
1454                 dev->a_ops.adapter_read = aac_read_raw_io;
1455                 dev->a_ops.adapter_write = aac_write_raw_io;
1456         } else {
1457                 dev->a_ops.adapter_bounds = aac_bounds_32;
1458                 dev->scsi_host_ptr->sg_tablesize = (dev->max_fib_size -
1459                         sizeof(struct aac_fibhdr) -
1460                         sizeof(struct aac_write) + sizeof(struct sgentry)) /
1461                                 sizeof(struct sgentry);
1462                 if (dev->dac_support) {
1463                         dev->a_ops.adapter_read = aac_read_block64;
1464                         dev->a_ops.adapter_write = aac_write_block64;
1465                         /*
1466                          * 38 scatter gather elements
1467                          */
1468                         dev->scsi_host_ptr->sg_tablesize =
1469                                 (dev->max_fib_size -
1470                                 sizeof(struct aac_fibhdr) -
1471                                 sizeof(struct aac_write64) +
1472                                 sizeof(struct sgentry64)) /
1473                                         sizeof(struct sgentry64);
1474                 } else {
1475                         dev->a_ops.adapter_read = aac_read_block;
1476                         dev->a_ops.adapter_write = aac_write_block;
1477                 }
1478                 dev->scsi_host_ptr->max_sectors = AAC_MAX_32BIT_SGBCOUNT;
1479                 if(!(dev->adapter_info.options & AAC_OPT_NEW_COMM)) {
1480                         /*
1481                          * Worst case size that could cause sg overflow when
1482                          * we break up SG elements that are larger than 64KB.
1483                          * Would be nice if we could tell the SCSI layer what
1484                          * the maximum SG element size can be. Worst case is
1485                          * (sg_tablesize-1) 4KB elements with one 64KB
1486                          * element.
1487                          *      32bit -> 468 or 238KB   64bit -> 424 or 212KB
1488                          */
1489                         dev->scsi_host_ptr->max_sectors =
1490                           (dev->scsi_host_ptr->sg_tablesize * 8) + 112;
1491                 }
1492         }
1493         /* FIB should be freed only after getting the response from the F/W */
1494         if (rcode != -ERESTARTSYS) {
1495                 aac_fib_complete(fibptr);
1496                 aac_fib_free(fibptr);
1497         }
1498
1499         return rcode;
1500 }
1501
1502
1503 static void io_callback(void *context, struct fib * fibptr)
1504 {
1505         struct aac_dev *dev;
1506         struct aac_read_reply *readreply;
1507         struct scsi_cmnd *scsicmd;
1508         u32 cid;
1509
1510         scsicmd = (struct scsi_cmnd *) context;
1511
1512         if (!aac_valid_context(scsicmd, fibptr))
1513                 return;
1514
1515         dev = fibptr->dev;
1516         cid = scmd_id(scsicmd);
1517
1518         if (nblank(dprintk(x))) {
1519                 u64 lba;
1520                 switch (scsicmd->cmnd[0]) {
1521                 case WRITE_6:
1522                 case READ_6:
1523                         lba = ((scsicmd->cmnd[1] & 0x1F) << 16) |
1524                             (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
1525                         break;
1526                 case WRITE_16:
1527                 case READ_16:
1528                         lba = ((u64)scsicmd->cmnd[2] << 56) |
1529                               ((u64)scsicmd->cmnd[3] << 48) |
1530                               ((u64)scsicmd->cmnd[4] << 40) |
1531                               ((u64)scsicmd->cmnd[5] << 32) |
1532                               ((u64)scsicmd->cmnd[6] << 24) |
1533                               (scsicmd->cmnd[7] << 16) |
1534                               (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1535                         break;
1536                 case WRITE_12:
1537                 case READ_12:
1538                         lba = ((u64)scsicmd->cmnd[2] << 24) |
1539                               (scsicmd->cmnd[3] << 16) |
1540                               (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1541                         break;
1542                 default:
1543                         lba = ((u64)scsicmd->cmnd[2] << 24) |
1544                                (scsicmd->cmnd[3] << 16) |
1545                                (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1546                         break;
1547                 }
1548                 printk(KERN_DEBUG
1549                   "io_callback[cpu %d]: lba = %llu, t = %ld.\n",
1550                   smp_processor_id(), (unsigned long long)lba, jiffies);
1551         }
1552
1553         BUG_ON(fibptr == NULL);
1554
1555         scsi_dma_unmap(scsicmd);
1556
1557         readreply = (struct aac_read_reply *)fib_data(fibptr);
1558         switch (le32_to_cpu(readreply->status)) {
1559         case ST_OK:
1560                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 |
1561                         SAM_STAT_GOOD;
1562                 dev->fsa_dev[cid].sense_data.sense_key = NO_SENSE;
1563                 break;
1564         case ST_NOT_READY:
1565                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 |
1566                         SAM_STAT_CHECK_CONDITION;
1567                 set_sense(&dev->fsa_dev[cid].sense_data, NOT_READY,
1568                   SENCODE_BECOMING_READY, ASENCODE_BECOMING_READY, 0, 0);
1569                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1570                        min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
1571                              SCSI_SENSE_BUFFERSIZE));
1572                 break;
1573         default:
1574 #ifdef AAC_DETAILED_STATUS_INFO
1575                 printk(KERN_WARNING "io_callback: io failed, status = %d\n",
1576                   le32_to_cpu(readreply->status));
1577 #endif
1578                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 |
1579                         SAM_STAT_CHECK_CONDITION;
1580                 set_sense(&dev->fsa_dev[cid].sense_data,
1581                   HARDWARE_ERROR, SENCODE_INTERNAL_TARGET_FAILURE,
1582                   ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0);
1583                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1584                        min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
1585                              SCSI_SENSE_BUFFERSIZE));
1586                 break;
1587         }
1588         aac_fib_complete(fibptr);
1589         aac_fib_free(fibptr);
1590
1591         scsicmd->scsi_done(scsicmd);
1592 }
1593
1594 static int aac_read(struct scsi_cmnd * scsicmd)
1595 {
1596         u64 lba;
1597         u32 count;
1598         int status;
1599         struct aac_dev *dev;
1600         struct fib * cmd_fibcontext;
1601
1602         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1603         /*
1604          *      Get block address and transfer length
1605          */
1606         switch (scsicmd->cmnd[0]) {
1607         case READ_6:
1608                 dprintk((KERN_DEBUG "aachba: received a read(6) command on id %d.\n", scmd_id(scsicmd)));
1609
1610                 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) |
1611                         (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
1612                 count = scsicmd->cmnd[4];
1613
1614                 if (count == 0)
1615                         count = 256;
1616                 break;
1617         case READ_16:
1618                 dprintk((KERN_DEBUG "aachba: received a read(16) command on id %d.\n", scmd_id(scsicmd)));
1619
1620                 lba =   ((u64)scsicmd->cmnd[2] << 56) |
1621                         ((u64)scsicmd->cmnd[3] << 48) |
1622                         ((u64)scsicmd->cmnd[4] << 40) |
1623                         ((u64)scsicmd->cmnd[5] << 32) |
1624                         ((u64)scsicmd->cmnd[6] << 24) |
1625                         (scsicmd->cmnd[7] << 16) |
1626                         (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1627                 count = (scsicmd->cmnd[10] << 24) |
1628                         (scsicmd->cmnd[11] << 16) |
1629                         (scsicmd->cmnd[12] << 8) | scsicmd->cmnd[13];
1630                 break;
1631         case READ_12:
1632                 dprintk((KERN_DEBUG "aachba: received a read(12) command on id %d.\n", scmd_id(scsicmd)));
1633
1634                 lba = ((u64)scsicmd->cmnd[2] << 24) |
1635                         (scsicmd->cmnd[3] << 16) |
1636                         (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1637                 count = (scsicmd->cmnd[6] << 24) |
1638                         (scsicmd->cmnd[7] << 16) |
1639                         (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1640                 break;
1641         default:
1642                 dprintk((KERN_DEBUG "aachba: received a read(10) command on id %d.\n", scmd_id(scsicmd)));
1643
1644                 lba = ((u64)scsicmd->cmnd[2] << 24) |
1645                         (scsicmd->cmnd[3] << 16) |
1646                         (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1647                 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
1648                 break;
1649         }
1650         dprintk((KERN_DEBUG "aac_read[cpu %d]: lba = %llu, t = %ld.\n",
1651           smp_processor_id(), (unsigned long long)lba, jiffies));
1652         if (aac_adapter_bounds(dev,scsicmd,lba))
1653                 return 0;
1654         /*
1655          *      Alocate and initialize a Fib
1656          */
1657         if (!(cmd_fibcontext = aac_fib_alloc(dev))) {
1658                 printk(KERN_WARNING "aac_read: fib allocation failed\n");
1659                 return -1;
1660         }
1661
1662         status = aac_adapter_read(cmd_fibcontext, scsicmd, lba, count);
1663
1664         /*
1665          *      Check that the command queued to the controller
1666          */
1667         if (status == -EINPROGRESS) {
1668                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
1669                 return 0;
1670         }
1671
1672         printk(KERN_WARNING "aac_read: aac_fib_send failed with status: %d.\n", status);
1673         /*
1674          *      For some reason, the Fib didn't queue, return QUEUE_FULL
1675          */
1676         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_TASK_SET_FULL;
1677         scsicmd->scsi_done(scsicmd);
1678         aac_fib_complete(cmd_fibcontext);
1679         aac_fib_free(cmd_fibcontext);
1680         return 0;
1681 }
1682
1683 static int aac_write(struct scsi_cmnd * scsicmd)
1684 {
1685         u64 lba;
1686         u32 count;
1687         int fua;
1688         int status;
1689         struct aac_dev *dev;
1690         struct fib * cmd_fibcontext;
1691
1692         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1693         /*
1694          *      Get block address and transfer length
1695          */
1696         if (scsicmd->cmnd[0] == WRITE_6)        /* 6 byte command */
1697         {
1698                 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
1699                 count = scsicmd->cmnd[4];
1700                 if (count == 0)
1701                         count = 256;
1702                 fua = 0;
1703         } else if (scsicmd->cmnd[0] == WRITE_16) { /* 16 byte command */
1704                 dprintk((KERN_DEBUG "aachba: received a write(16) command on id %d.\n", scmd_id(scsicmd)));
1705
1706                 lba =   ((u64)scsicmd->cmnd[2] << 56) |
1707                         ((u64)scsicmd->cmnd[3] << 48) |
1708                         ((u64)scsicmd->cmnd[4] << 40) |
1709                         ((u64)scsicmd->cmnd[5] << 32) |
1710                         ((u64)scsicmd->cmnd[6] << 24) |
1711                         (scsicmd->cmnd[7] << 16) |
1712                         (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1713                 count = (scsicmd->cmnd[10] << 24) | (scsicmd->cmnd[11] << 16) |
1714                         (scsicmd->cmnd[12] << 8) | scsicmd->cmnd[13];
1715                 fua = scsicmd->cmnd[1] & 0x8;
1716         } else if (scsicmd->cmnd[0] == WRITE_12) { /* 12 byte command */
1717                 dprintk((KERN_DEBUG "aachba: received a write(12) command on id %d.\n", scmd_id(scsicmd)));
1718
1719                 lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16)
1720                     | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1721                 count = (scsicmd->cmnd[6] << 24) | (scsicmd->cmnd[7] << 16)
1722                       | (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1723                 fua = scsicmd->cmnd[1] & 0x8;
1724         } else {
1725                 dprintk((KERN_DEBUG "aachba: received a write(10) command on id %d.\n", scmd_id(scsicmd)));
1726                 lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1727                 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
1728                 fua = scsicmd->cmnd[1] & 0x8;
1729         }
1730         dprintk((KERN_DEBUG "aac_write[cpu %d]: lba = %llu, t = %ld.\n",
1731           smp_processor_id(), (unsigned long long)lba, jiffies));
1732         if (aac_adapter_bounds(dev,scsicmd,lba))
1733                 return 0;
1734         /*
1735          *      Allocate and initialize a Fib then setup a BlockWrite command
1736          */
1737         if (!(cmd_fibcontext = aac_fib_alloc(dev))) {
1738                 /* FIB temporarily unavailable,not catastrophic failure */
1739
1740                 /* scsicmd->result = DID_ERROR << 16;
1741                  * scsicmd->scsi_done(scsicmd);
1742                  * return 0;
1743                  */
1744                 printk(KERN_WARNING "aac_write: fib allocation failed\n");
1745                 return -1;
1746         }
1747
1748         status = aac_adapter_write(cmd_fibcontext, scsicmd, lba, count, fua);
1749
1750         /*
1751          *      Check that the command queued to the controller
1752          */
1753         if (status == -EINPROGRESS) {
1754                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
1755                 return 0;
1756         }
1757
1758         printk(KERN_WARNING "aac_write: aac_fib_send failed with status: %d\n", status);
1759         /*
1760          *      For some reason, the Fib didn't queue, return QUEUE_FULL
1761          */
1762         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_TASK_SET_FULL;
1763         scsicmd->scsi_done(scsicmd);
1764
1765         aac_fib_complete(cmd_fibcontext);
1766         aac_fib_free(cmd_fibcontext);
1767         return 0;
1768 }
1769
1770 static void synchronize_callback(void *context, struct fib *fibptr)
1771 {
1772         struct aac_synchronize_reply *synchronizereply;
1773         struct scsi_cmnd *cmd;
1774
1775         cmd = context;
1776
1777         if (!aac_valid_context(cmd, fibptr))
1778                 return;
1779
1780         dprintk((KERN_DEBUG "synchronize_callback[cpu %d]: t = %ld.\n",
1781                                 smp_processor_id(), jiffies));
1782         BUG_ON(fibptr == NULL);
1783
1784
1785         synchronizereply = fib_data(fibptr);
1786         if (le32_to_cpu(synchronizereply->status) == CT_OK)
1787                 cmd->result = DID_OK << 16 |
1788                         COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1789         else {
1790                 struct scsi_device *sdev = cmd->device;
1791                 struct aac_dev *dev = fibptr->dev;
1792                 u32 cid = sdev_id(sdev);
1793                 printk(KERN_WARNING
1794                      "synchronize_callback: synchronize failed, status = %d\n",
1795                      le32_to_cpu(synchronizereply->status));
1796                 cmd->result = DID_OK << 16 |
1797                         COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1798                 set_sense(&dev->fsa_dev[cid].sense_data,
1799                   HARDWARE_ERROR, SENCODE_INTERNAL_TARGET_FAILURE,
1800                   ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0);
1801                 memcpy(cmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1802                        min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
1803                              SCSI_SENSE_BUFFERSIZE));
1804         }
1805
1806         aac_fib_complete(fibptr);
1807         aac_fib_free(fibptr);
1808         cmd->scsi_done(cmd);
1809 }
1810
1811 static int aac_synchronize(struct scsi_cmnd *scsicmd)
1812 {
1813         int status;
1814         struct fib *cmd_fibcontext;
1815         struct aac_synchronize *synchronizecmd;
1816         struct scsi_cmnd *cmd;
1817         struct scsi_device *sdev = scsicmd->device;
1818         int active = 0;
1819         struct aac_dev *aac;
1820         u64 lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) |
1821                 (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1822         u32 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
1823         unsigned long flags;
1824
1825         /*
1826          * Wait for all outstanding queued commands to complete to this
1827          * specific target (block).
1828          */
1829         spin_lock_irqsave(&sdev->list_lock, flags);
1830         list_for_each_entry(cmd, &sdev->cmd_list, list)
1831                 if (cmd->SCp.phase == AAC_OWNER_FIRMWARE) {
1832                         u64 cmnd_lba;
1833                         u32 cmnd_count;
1834
1835                         if (cmd->cmnd[0] == WRITE_6) {
1836                                 cmnd_lba = ((cmd->cmnd[1] & 0x1F) << 16) |
1837                                         (cmd->cmnd[2] << 8) |
1838                                         cmd->cmnd[3];
1839                                 cmnd_count = cmd->cmnd[4];
1840                                 if (cmnd_count == 0)
1841                                         cmnd_count = 256;
1842                         } else if (cmd->cmnd[0] == WRITE_16) {
1843                                 cmnd_lba = ((u64)cmd->cmnd[2] << 56) |
1844                                         ((u64)cmd->cmnd[3] << 48) |
1845                                         ((u64)cmd->cmnd[4] << 40) |
1846                                         ((u64)cmd->cmnd[5] << 32) |
1847                                         ((u64)cmd->cmnd[6] << 24) |
1848                                         (cmd->cmnd[7] << 16) |
1849                                         (cmd->cmnd[8] << 8) |
1850                                         cmd->cmnd[9];
1851                                 cmnd_count = (cmd->cmnd[10] << 24) |
1852                                         (cmd->cmnd[11] << 16) |
1853                                         (cmd->cmnd[12] << 8) |
1854                                         cmd->cmnd[13];
1855                         } else if (cmd->cmnd[0] == WRITE_12) {
1856                                 cmnd_lba = ((u64)cmd->cmnd[2] << 24) |
1857                                         (cmd->cmnd[3] << 16) |
1858                                         (cmd->cmnd[4] << 8) |
1859                                         cmd->cmnd[5];
1860                                 cmnd_count = (cmd->cmnd[6] << 24) |
1861                                         (cmd->cmnd[7] << 16) |
1862                                         (cmd->cmnd[8] << 8) |
1863                                         cmd->cmnd[9];
1864                         } else if (cmd->cmnd[0] == WRITE_10) {
1865                                 cmnd_lba = ((u64)cmd->cmnd[2] << 24) |
1866                                         (cmd->cmnd[3] << 16) |
1867                                         (cmd->cmnd[4] << 8) |
1868                                         cmd->cmnd[5];
1869                                 cmnd_count = (cmd->cmnd[7] << 8) |
1870                                         cmd->cmnd[8];
1871                         } else
1872                                 continue;
1873                         if (((cmnd_lba + cmnd_count) < lba) ||
1874                           (count && ((lba + count) < cmnd_lba)))
1875                                 continue;
1876                         ++active;
1877                         break;
1878                 }
1879
1880         spin_unlock_irqrestore(&sdev->list_lock, flags);
1881
1882         /*
1883          *      Yield the processor (requeue for later)
1884          */
1885         if (active)
1886                 return SCSI_MLQUEUE_DEVICE_BUSY;
1887
1888         aac = (struct aac_dev *)sdev->host->hostdata;
1889         if (aac->in_reset)
1890                 return SCSI_MLQUEUE_HOST_BUSY;
1891
1892         /*
1893          *      Allocate and initialize a Fib
1894          */
1895         if (!(cmd_fibcontext = aac_fib_alloc(aac)))
1896                 return SCSI_MLQUEUE_HOST_BUSY;
1897
1898         aac_fib_init(cmd_fibcontext);
1899
1900         synchronizecmd = fib_data(cmd_fibcontext);
1901         synchronizecmd->command = cpu_to_le32(VM_ContainerConfig);
1902         synchronizecmd->type = cpu_to_le32(CT_FLUSH_CACHE);
1903         synchronizecmd->cid = cpu_to_le32(scmd_id(scsicmd));
1904         synchronizecmd->count =
1905              cpu_to_le32(sizeof(((struct aac_synchronize_reply *)NULL)->data));
1906
1907         /*
1908          *      Now send the Fib to the adapter
1909          */
1910         status = aac_fib_send(ContainerCommand,
1911                   cmd_fibcontext,
1912                   sizeof(struct aac_synchronize),
1913                   FsaNormal,
1914                   0, 1,
1915                   (fib_callback)synchronize_callback,
1916                   (void *)scsicmd);
1917
1918         /*
1919          *      Check that the command queued to the controller
1920          */
1921         if (status == -EINPROGRESS) {
1922                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
1923                 return 0;
1924         }
1925
1926         printk(KERN_WARNING
1927                 "aac_synchronize: aac_fib_send failed with status: %d.\n", status);
1928         aac_fib_complete(cmd_fibcontext);
1929         aac_fib_free(cmd_fibcontext);
1930         return SCSI_MLQUEUE_HOST_BUSY;
1931 }
1932
1933 static void aac_start_stop_callback(void *context, struct fib *fibptr)
1934 {
1935         struct scsi_cmnd *scsicmd = context;
1936
1937         if (!aac_valid_context(scsicmd, fibptr))
1938                 return;
1939
1940         BUG_ON(fibptr == NULL);
1941
1942         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1943
1944         aac_fib_complete(fibptr);
1945         aac_fib_free(fibptr);
1946         scsicmd->scsi_done(scsicmd);
1947 }
1948
1949 static int aac_start_stop(struct scsi_cmnd *scsicmd)
1950 {
1951         int status;
1952         struct fib *cmd_fibcontext;
1953         struct aac_power_management *pmcmd;
1954         struct scsi_device *sdev = scsicmd->device;
1955         struct aac_dev *aac = (struct aac_dev *)sdev->host->hostdata;
1956
1957         if (!(aac->supplement_adapter_info.SupportedOptions2 &
1958               AAC_OPTION_POWER_MANAGEMENT)) {
1959                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 |
1960                                   SAM_STAT_GOOD;
1961                 scsicmd->scsi_done(scsicmd);
1962                 return 0;
1963         }
1964
1965         if (aac->in_reset)
1966                 return SCSI_MLQUEUE_HOST_BUSY;
1967
1968         /*
1969          *      Allocate and initialize a Fib
1970          */
1971         cmd_fibcontext = aac_fib_alloc(aac);
1972         if (!cmd_fibcontext)
1973                 return SCSI_MLQUEUE_HOST_BUSY;
1974
1975         aac_fib_init(cmd_fibcontext);
1976
1977         pmcmd = fib_data(cmd_fibcontext);
1978         pmcmd->command = cpu_to_le32(VM_ContainerConfig);
1979         pmcmd->type = cpu_to_le32(CT_POWER_MANAGEMENT);
1980         /* Eject bit ignored, not relevant */
1981         pmcmd->sub = (scsicmd->cmnd[4] & 1) ?
1982                 cpu_to_le32(CT_PM_START_UNIT) : cpu_to_le32(CT_PM_STOP_UNIT);
1983         pmcmd->cid = cpu_to_le32(sdev_id(sdev));
1984         pmcmd->parm = (scsicmd->cmnd[1] & 1) ?
1985                 cpu_to_le32(CT_PM_UNIT_IMMEDIATE) : 0;
1986
1987         /*
1988          *      Now send the Fib to the adapter
1989          */
1990         status = aac_fib_send(ContainerCommand,
1991                   cmd_fibcontext,
1992                   sizeof(struct aac_power_management),
1993                   FsaNormal,
1994                   0, 1,
1995                   (fib_callback)aac_start_stop_callback,
1996                   (void *)scsicmd);
1997
1998         /*
1999          *      Check that the command queued to the controller
2000          */
2001         if (status == -EINPROGRESS) {
2002                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
2003                 return 0;
2004         }
2005
2006         aac_fib_complete(cmd_fibcontext);
2007         aac_fib_free(cmd_fibcontext);
2008         return SCSI_MLQUEUE_HOST_BUSY;
2009 }
2010
2011 /**
2012  *      aac_scsi_cmd()          -       Process SCSI command
2013  *      @scsicmd:               SCSI command block
2014  *
2015  *      Emulate a SCSI command and queue the required request for the
2016  *      aacraid firmware.
2017  */
2018
2019 int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
2020 {
2021         u32 cid;
2022         struct Scsi_Host *host = scsicmd->device->host;
2023         struct aac_dev *dev = (struct aac_dev *)host->hostdata;
2024         struct fsa_dev_info *fsa_dev_ptr = dev->fsa_dev;
2025
2026         if (fsa_dev_ptr == NULL)
2027                 return -1;
2028         /*
2029          *      If the bus, id or lun is out of range, return fail
2030          *      Test does not apply to ID 16, the pseudo id for the controller
2031          *      itself.
2032          */
2033         cid = scmd_id(scsicmd);
2034         if (cid != host->this_id) {
2035                 if (scmd_channel(scsicmd) == CONTAINER_CHANNEL) {
2036                         if((cid >= dev->maximum_num_containers) ||
2037                                         (scsicmd->device->lun != 0)) {
2038                                 scsicmd->result = DID_NO_CONNECT << 16;
2039                                 scsicmd->scsi_done(scsicmd);
2040                                 return 0;
2041                         }
2042
2043                         /*
2044                          *      If the target container doesn't exist, it may have
2045                          *      been newly created
2046                          */
2047                         if (((fsa_dev_ptr[cid].valid & 1) == 0) ||
2048                           (fsa_dev_ptr[cid].sense_data.sense_key ==
2049                            NOT_READY)) {
2050                                 switch (scsicmd->cmnd[0]) {
2051                                 case SERVICE_ACTION_IN:
2052                                         if (!(dev->raw_io_interface) ||
2053                                             !(dev->raw_io_64) ||
2054                                             ((scsicmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16))
2055                                                 break;
2056                                 case INQUIRY:
2057                                 case READ_CAPACITY:
2058                                 case TEST_UNIT_READY:
2059                                         if (dev->in_reset)
2060                                                 return -1;
2061                                         return _aac_probe_container(scsicmd,
2062                                                         aac_probe_container_callback2);
2063                                 default:
2064                                         break;
2065                                 }
2066                         }
2067                 } else {  /* check for physical non-dasd devices */
2068                         if (dev->nondasd_support || expose_physicals ||
2069                                         dev->jbod) {
2070                                 if (dev->in_reset)
2071                                         return -1;
2072                                 return aac_send_srb_fib(scsicmd);
2073                         } else {
2074                                 scsicmd->result = DID_NO_CONNECT << 16;
2075                                 scsicmd->scsi_done(scsicmd);
2076                                 return 0;
2077                         }
2078                 }
2079         }
2080         /*
2081          * else Command for the controller itself
2082          */
2083         else if ((scsicmd->cmnd[0] != INQUIRY) &&       /* only INQUIRY & TUR cmnd supported for controller */
2084                 (scsicmd->cmnd[0] != TEST_UNIT_READY))
2085         {
2086                 dprintk((KERN_WARNING "Only INQUIRY & TUR command supported for controller, rcvd = 0x%x.\n", scsicmd->cmnd[0]));
2087                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
2088                 set_sense(&dev->fsa_dev[cid].sense_data,
2089                   ILLEGAL_REQUEST, SENCODE_INVALID_COMMAND,
2090                   ASENCODE_INVALID_COMMAND, 0, 0);
2091                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
2092                        min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
2093                              SCSI_SENSE_BUFFERSIZE));
2094                 scsicmd->scsi_done(scsicmd);
2095                 return 0;
2096         }
2097
2098
2099         /* Handle commands here that don't really require going out to the adapter */
2100         switch (scsicmd->cmnd[0]) {
2101         case INQUIRY:
2102         {
2103                 struct inquiry_data inq_data;
2104
2105                 dprintk((KERN_DEBUG "INQUIRY command, ID: %d.\n", cid));
2106                 memset(&inq_data, 0, sizeof (struct inquiry_data));
2107
2108                 if ((scsicmd->cmnd[1] & 0x1) && aac_wwn) {
2109                         char *arr = (char *)&inq_data;
2110
2111                         /* EVPD bit set */
2112                         arr[0] = (scmd_id(scsicmd) == host->this_id) ?
2113                           INQD_PDT_PROC : INQD_PDT_DA;
2114                         if (scsicmd->cmnd[2] == 0) {
2115                                 /* supported vital product data pages */
2116                                 arr[3] = 2;
2117                                 arr[4] = 0x0;
2118                                 arr[5] = 0x80;
2119                                 arr[1] = scsicmd->cmnd[2];
2120                                 scsi_sg_copy_from_buffer(scsicmd, &inq_data,
2121                                                          sizeof(inq_data));
2122                                 scsicmd->result = DID_OK << 16 |
2123                                   COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2124                         } else if (scsicmd->cmnd[2] == 0x80) {
2125                                 /* unit serial number page */
2126                                 arr[3] = setinqserial(dev, &arr[4],
2127                                   scmd_id(scsicmd));
2128                                 arr[1] = scsicmd->cmnd[2];
2129                                 scsi_sg_copy_from_buffer(scsicmd, &inq_data,
2130                                                          sizeof(inq_data));
2131                                 if (aac_wwn != 2)
2132                                         return aac_get_container_serial(
2133                                                 scsicmd);
2134                                 /* SLES 10 SP1 special */
2135                                 scsicmd->result = DID_OK << 16 |
2136                                   COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2137                         } else {
2138                                 /* vpd page not implemented */
2139                                 scsicmd->result = DID_OK << 16 |
2140                                   COMMAND_COMPLETE << 8 |
2141                                   SAM_STAT_CHECK_CONDITION;
2142                                 set_sense(&dev->fsa_dev[cid].sense_data,
2143                                   ILLEGAL_REQUEST, SENCODE_INVALID_CDB_FIELD,
2144                                   ASENCODE_NO_SENSE, 7, 2);
2145                                 memcpy(scsicmd->sense_buffer,
2146                                   &dev->fsa_dev[cid].sense_data,
2147                                   min_t(size_t,
2148                                         sizeof(dev->fsa_dev[cid].sense_data),
2149                                         SCSI_SENSE_BUFFERSIZE));
2150                         }
2151                         scsicmd->scsi_done(scsicmd);
2152                         return 0;
2153                 }
2154                 inq_data.inqd_ver = 2;  /* claim compliance to SCSI-2 */
2155                 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 */
2156                 inq_data.inqd_len = 31;
2157                 /*Format for "pad2" is  RelAdr | WBus32 | WBus16 |  Sync  | Linked |Reserved| CmdQue | SftRe */
2158                 inq_data.inqd_pad2= 0x32 ;       /*WBus16|Sync|CmdQue */
2159                 /*
2160                  *      Set the Vendor, Product, and Revision Level
2161                  *      see: <vendor>.c i.e. aac.c
2162                  */
2163                 if (cid == host->this_id) {
2164                         setinqstr(dev, (void *) (inq_data.inqd_vid), ARRAY_SIZE(container_types));
2165                         inq_data.inqd_pdt = INQD_PDT_PROC;      /* Processor device */
2166                         scsi_sg_copy_from_buffer(scsicmd, &inq_data,
2167                                                  sizeof(inq_data));
2168                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2169                         scsicmd->scsi_done(scsicmd);
2170                         return 0;
2171                 }
2172                 if (dev->in_reset)
2173                         return -1;
2174                 setinqstr(dev, (void *) (inq_data.inqd_vid), fsa_dev_ptr[cid].type);
2175                 inq_data.inqd_pdt = INQD_PDT_DA;        /* Direct/random access device */
2176                 scsi_sg_copy_from_buffer(scsicmd, &inq_data, sizeof(inq_data));
2177                 return aac_get_container_name(scsicmd);
2178         }
2179         case SERVICE_ACTION_IN:
2180                 if (!(dev->raw_io_interface) ||
2181                     !(dev->raw_io_64) ||
2182                     ((scsicmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16))
2183                         break;
2184         {
2185                 u64 capacity;
2186                 char cp[13];
2187                 unsigned int alloc_len;
2188
2189                 dprintk((KERN_DEBUG "READ CAPACITY_16 command.\n"));
2190                 capacity = fsa_dev_ptr[cid].size - 1;
2191                 cp[0] = (capacity >> 56) & 0xff;
2192                 cp[1] = (capacity >> 48) & 0xff;
2193                 cp[2] = (capacity >> 40) & 0xff;
2194                 cp[3] = (capacity >> 32) & 0xff;
2195                 cp[4] = (capacity >> 24) & 0xff;
2196                 cp[5] = (capacity >> 16) & 0xff;
2197                 cp[6] = (capacity >> 8) & 0xff;
2198                 cp[7] = (capacity >> 0) & 0xff;
2199                 cp[8] = 0;
2200                 cp[9] = 0;
2201                 cp[10] = 2;
2202                 cp[11] = 0;
2203                 cp[12] = 0;
2204
2205                 alloc_len = ((scsicmd->cmnd[10] << 24)
2206                              + (scsicmd->cmnd[11] << 16)
2207                              + (scsicmd->cmnd[12] << 8) + scsicmd->cmnd[13]);
2208
2209                 alloc_len = min_t(size_t, alloc_len, sizeof(cp));
2210                 scsi_sg_copy_from_buffer(scsicmd, cp, alloc_len);
2211                 if (alloc_len < scsi_bufflen(scsicmd))
2212                         scsi_set_resid(scsicmd,
2213                                        scsi_bufflen(scsicmd) - alloc_len);
2214
2215                 /* Do not cache partition table for arrays */
2216                 scsicmd->device->removable = 1;
2217
2218                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2219                 scsicmd->scsi_done(scsicmd);
2220
2221                 return 0;
2222         }
2223
2224         case READ_CAPACITY:
2225         {
2226                 u32 capacity;
2227                 char cp[8];
2228
2229                 dprintk((KERN_DEBUG "READ CAPACITY command.\n"));
2230                 if (fsa_dev_ptr[cid].size <= 0x100000000ULL)
2231                         capacity = fsa_dev_ptr[cid].size - 1;
2232                 else
2233                         capacity = (u32)-1;
2234
2235                 cp[0] = (capacity >> 24) & 0xff;
2236                 cp[1] = (capacity >> 16) & 0xff;
2237                 cp[2] = (capacity >> 8) & 0xff;
2238                 cp[3] = (capacity >> 0) & 0xff;
2239                 cp[4] = 0;
2240                 cp[5] = 0;
2241                 cp[6] = 2;
2242                 cp[7] = 0;
2243                 scsi_sg_copy_from_buffer(scsicmd, cp, sizeof(cp));
2244                 /* Do not cache partition table for arrays */
2245                 scsicmd->device->removable = 1;
2246                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 |
2247                   SAM_STAT_GOOD;
2248                 scsicmd->scsi_done(scsicmd);
2249
2250                 return 0;
2251         }
2252
2253         case MODE_SENSE:
2254         {
2255                 char mode_buf[7];
2256                 int mode_buf_length = 4;
2257
2258                 dprintk((KERN_DEBUG "MODE SENSE command.\n"));
2259                 mode_buf[0] = 3;        /* Mode data length */
2260                 mode_buf[1] = 0;        /* Medium type - default */
2261                 mode_buf[2] = 0;        /* Device-specific param,
2262                                            bit 8: 0/1 = write enabled/protected
2263                                            bit 4: 0/1 = FUA enabled */
2264                 if (dev->raw_io_interface && ((aac_cache & 5) != 1))
2265                         mode_buf[2] = 0x10;
2266                 mode_buf[3] = 0;        /* Block descriptor length */
2267                 if (((scsicmd->cmnd[2] & 0x3f) == 8) ||
2268                   ((scsicmd->cmnd[2] & 0x3f) == 0x3f)) {
2269                         mode_buf[0] = 6;
2270                         mode_buf[4] = 8;
2271                         mode_buf[5] = 1;
2272                         mode_buf[6] = ((aac_cache & 6) == 2)
2273                                 ? 0 : 0x04; /* WCE */
2274                         mode_buf_length = 7;
2275                         if (mode_buf_length > scsicmd->cmnd[4])
2276                                 mode_buf_length = scsicmd->cmnd[4];
2277                 }
2278                 scsi_sg_copy_from_buffer(scsicmd, mode_buf, mode_buf_length);
2279                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2280                 scsicmd->scsi_done(scsicmd);
2281
2282                 return 0;
2283         }
2284         case MODE_SENSE_10:
2285         {
2286                 char mode_buf[11];
2287                 int mode_buf_length = 8;
2288
2289                 dprintk((KERN_DEBUG "MODE SENSE 10 byte command.\n"));
2290                 mode_buf[0] = 0;        /* Mode data length (MSB) */
2291                 mode_buf[1] = 6;        /* Mode data length (LSB) */
2292                 mode_buf[2] = 0;        /* Medium type - default */
2293                 mode_buf[3] = 0;        /* Device-specific param,
2294                                            bit 8: 0/1 = write enabled/protected
2295                                            bit 4: 0/1 = FUA enabled */
2296                 if (dev->raw_io_interface && ((aac_cache & 5) != 1))
2297                         mode_buf[3] = 0x10;
2298                 mode_buf[4] = 0;        /* reserved */
2299                 mode_buf[5] = 0;        /* reserved */
2300                 mode_buf[6] = 0;        /* Block descriptor length (MSB) */
2301                 mode_buf[7] = 0;        /* Block descriptor length (LSB) */
2302                 if (((scsicmd->cmnd[2] & 0x3f) == 8) ||
2303                   ((scsicmd->cmnd[2] & 0x3f) == 0x3f)) {
2304                         mode_buf[1] = 9;
2305                         mode_buf[8] = 8;
2306                         mode_buf[9] = 1;
2307                         mode_buf[10] = ((aac_cache & 6) == 2)
2308                                 ? 0 : 0x04; /* WCE */
2309                         mode_buf_length = 11;
2310                         if (mode_buf_length > scsicmd->cmnd[8])
2311                                 mode_buf_length = scsicmd->cmnd[8];
2312                 }
2313                 scsi_sg_copy_from_buffer(scsicmd, mode_buf, mode_buf_length);
2314
2315                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2316                 scsicmd->scsi_done(scsicmd);
2317
2318                 return 0;
2319         }
2320         case REQUEST_SENSE:
2321                 dprintk((KERN_DEBUG "REQUEST SENSE command.\n"));
2322                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data, sizeof (struct sense_data));
2323                 memset(&dev->fsa_dev[cid].sense_data, 0, sizeof (struct sense_data));
2324                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2325                 scsicmd->scsi_done(scsicmd);
2326                 return 0;
2327
2328         case ALLOW_MEDIUM_REMOVAL:
2329                 dprintk((KERN_DEBUG "LOCK command.\n"));
2330                 if (scsicmd->cmnd[4])
2331                         fsa_dev_ptr[cid].locked = 1;
2332                 else
2333                         fsa_dev_ptr[cid].locked = 0;
2334
2335                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2336                 scsicmd->scsi_done(scsicmd);
2337                 return 0;
2338         /*
2339          *      These commands are all No-Ops
2340          */
2341         case TEST_UNIT_READY:
2342                 if (fsa_dev_ptr[cid].sense_data.sense_key == NOT_READY) {
2343                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 |
2344                                 SAM_STAT_CHECK_CONDITION;
2345                         set_sense(&dev->fsa_dev[cid].sense_data,
2346                                   NOT_READY, SENCODE_BECOMING_READY,
2347                                   ASENCODE_BECOMING_READY, 0, 0);
2348                         memcpy(scsicmd->sense_buffer,
2349                                &dev->fsa_dev[cid].sense_data,
2350                                min_t(size_t,
2351                                      sizeof(dev->fsa_dev[cid].sense_data),
2352                                      SCSI_SENSE_BUFFERSIZE));
2353                         scsicmd->scsi_done(scsicmd);
2354                         return 0;
2355                 }
2356                 /* FALLTHRU */
2357         case RESERVE:
2358         case RELEASE:
2359         case REZERO_UNIT:
2360         case REASSIGN_BLOCKS:
2361         case SEEK_10:
2362                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2363                 scsicmd->scsi_done(scsicmd);
2364                 return 0;
2365
2366         case START_STOP:
2367                 return aac_start_stop(scsicmd);
2368         }
2369
2370         switch (scsicmd->cmnd[0])
2371         {
2372                 case READ_6:
2373                 case READ_10:
2374                 case READ_12:
2375                 case READ_16:
2376                         if (dev->in_reset)
2377                                 return -1;
2378                         /*
2379                          *      Hack to keep track of ordinal number of the device that
2380                          *      corresponds to a container. Needed to convert
2381                          *      containers to /dev/sd device names
2382                          */
2383
2384                         if (scsicmd->request->rq_disk)
2385                                 strlcpy(fsa_dev_ptr[cid].devname,
2386                                 scsicmd->request->rq_disk->disk_name,
2387                                 min(sizeof(fsa_dev_ptr[cid].devname),
2388                                 sizeof(scsicmd->request->rq_disk->disk_name) + 1));
2389
2390                         return aac_read(scsicmd);
2391
2392                 case WRITE_6:
2393                 case WRITE_10:
2394                 case WRITE_12:
2395                 case WRITE_16:
2396                         if (dev->in_reset)
2397                                 return -1;
2398                         return aac_write(scsicmd);
2399
2400                 case SYNCHRONIZE_CACHE:
2401                         if (((aac_cache & 6) == 6) && dev->cache_protected) {
2402                                 scsicmd->result = DID_OK << 16 |
2403                                         COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2404                                 scsicmd->scsi_done(scsicmd);
2405                                 return 0;
2406                         }
2407                         /* Issue FIB to tell Firmware to flush it's cache */
2408                         if ((aac_cache & 6) != 2)
2409                                 return aac_synchronize(scsicmd);
2410                         /* FALLTHRU */
2411                 default:
2412                         /*
2413                          *      Unhandled commands
2414                          */
2415                         dprintk((KERN_WARNING "Unhandled SCSI Command: 0x%x.\n", scsicmd->cmnd[0]));
2416                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
2417                         set_sense(&dev->fsa_dev[cid].sense_data,
2418                           ILLEGAL_REQUEST, SENCODE_INVALID_COMMAND,
2419                           ASENCODE_INVALID_COMMAND, 0, 0);
2420                         memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
2421                                 min_t(size_t,
2422                                       sizeof(dev->fsa_dev[cid].sense_data),
2423                                       SCSI_SENSE_BUFFERSIZE));
2424                         scsicmd->scsi_done(scsicmd);
2425                         return 0;
2426         }
2427 }
2428
2429 static int query_disk(struct aac_dev *dev, void __user *arg)
2430 {
2431         struct aac_query_disk qd;
2432         struct fsa_dev_info *fsa_dev_ptr;
2433
2434         fsa_dev_ptr = dev->fsa_dev;
2435         if (!fsa_dev_ptr)
2436                 return -EBUSY;
2437         if (copy_from_user(&qd, arg, sizeof (struct aac_query_disk)))
2438                 return -EFAULT;
2439         if (qd.cnum == -1)
2440                 qd.cnum = qd.id;
2441         else if ((qd.bus == -1) && (qd.id == -1) && (qd.lun == -1))
2442         {
2443                 if (qd.cnum < 0 || qd.cnum >= dev->maximum_num_containers)
2444                         return -EINVAL;
2445                 qd.instance = dev->scsi_host_ptr->host_no;
2446                 qd.bus = 0;
2447                 qd.id = CONTAINER_TO_ID(qd.cnum);
2448                 qd.lun = CONTAINER_TO_LUN(qd.cnum);
2449         }
2450         else return -EINVAL;
2451
2452         qd.valid = fsa_dev_ptr[qd.cnum].valid != 0;
2453         qd.locked = fsa_dev_ptr[qd.cnum].locked;
2454         qd.deleted = fsa_dev_ptr[qd.cnum].deleted;
2455
2456         if (fsa_dev_ptr[qd.cnum].devname[0] == '\0')
2457                 qd.unmapped = 1;
2458         else
2459                 qd.unmapped = 0;
2460
2461         strlcpy(qd.name, fsa_dev_ptr[qd.cnum].devname,
2462           min(sizeof(qd.name), sizeof(fsa_dev_ptr[qd.cnum].devname) + 1));
2463
2464         if (copy_to_user(arg, &qd, sizeof (struct aac_query_disk)))
2465                 return -EFAULT;
2466         return 0;
2467 }
2468
2469 static int force_delete_disk(struct aac_dev *dev, void __user *arg)
2470 {
2471         struct aac_delete_disk dd;
2472         struct fsa_dev_info *fsa_dev_ptr;
2473
2474         fsa_dev_ptr = dev->fsa_dev;
2475         if (!fsa_dev_ptr)
2476                 return -EBUSY;
2477
2478         if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
2479                 return -EFAULT;
2480
2481         if (dd.cnum >= dev->maximum_num_containers)
2482                 return -EINVAL;
2483         /*
2484          *      Mark this container as being deleted.
2485          */
2486         fsa_dev_ptr[dd.cnum].deleted = 1;
2487         /*
2488          *      Mark the container as no longer valid
2489          */
2490         fsa_dev_ptr[dd.cnum].valid = 0;
2491         return 0;
2492 }
2493
2494 static int delete_disk(struct aac_dev *dev, void __user *arg)
2495 {
2496         struct aac_delete_disk dd;
2497         struct fsa_dev_info *fsa_dev_ptr;
2498
2499         fsa_dev_ptr = dev->fsa_dev;
2500         if (!fsa_dev_ptr)
2501                 return -EBUSY;
2502
2503         if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
2504                 return -EFAULT;
2505
2506         if (dd.cnum >= dev->maximum_num_containers)
2507                 return -EINVAL;
2508         /*
2509          *      If the container is locked, it can not be deleted by the API.
2510          */
2511         if (fsa_dev_ptr[dd.cnum].locked)
2512                 return -EBUSY;
2513         else {
2514                 /*
2515                  *      Mark the container as no longer being valid.
2516                  */
2517                 fsa_dev_ptr[dd.cnum].valid = 0;
2518                 fsa_dev_ptr[dd.cnum].devname[0] = '\0';
2519                 return 0;
2520         }
2521 }
2522
2523 int aac_dev_ioctl(struct aac_dev *dev, int cmd, void __user *arg)
2524 {
2525         switch (cmd) {
2526         case FSACTL_QUERY_DISK:
2527                 return query_disk(dev, arg);
2528         case FSACTL_DELETE_DISK:
2529                 return delete_disk(dev, arg);
2530         case FSACTL_FORCE_DELETE_DISK:
2531                 return force_delete_disk(dev, arg);
2532         case FSACTL_GET_CONTAINERS:
2533                 return aac_get_containers(dev);
2534         default:
2535                 return -ENOTTY;
2536         }
2537 }
2538
2539 /**
2540  *
2541  * aac_srb_callback
2542  * @context: the context set in the fib - here it is scsi cmd
2543  * @fibptr: pointer to the fib
2544  *
2545  * Handles the completion of a scsi command to a non dasd device
2546  *
2547  */
2548
2549 static void aac_srb_callback(void *context, struct fib * fibptr)
2550 {
2551         struct aac_dev *dev;
2552         struct aac_srb_reply *srbreply;
2553         struct scsi_cmnd *scsicmd;
2554
2555         scsicmd = (struct scsi_cmnd *) context;
2556
2557         if (!aac_valid_context(scsicmd, fibptr))
2558                 return;
2559
2560         BUG_ON(fibptr == NULL);
2561
2562         dev = fibptr->dev;
2563
2564         srbreply = (struct aac_srb_reply *) fib_data(fibptr);
2565
2566         scsicmd->sense_buffer[0] = '\0';  /* Initialize sense valid flag to false */
2567         /*
2568          *      Calculate resid for sg
2569          */
2570
2571         scsi_set_resid(scsicmd, scsi_bufflen(scsicmd)
2572                        - le32_to_cpu(srbreply->data_xfer_length));
2573
2574         scsi_dma_unmap(scsicmd);
2575
2576         /*
2577          * First check the fib status
2578          */
2579
2580         if (le32_to_cpu(srbreply->status) != ST_OK){
2581                 int len;
2582                 printk(KERN_WARNING "aac_srb_callback: srb failed, status = %d\n", le32_to_cpu(srbreply->status));
2583                 len = min_t(u32, le32_to_cpu(srbreply->sense_data_size),
2584                             SCSI_SENSE_BUFFERSIZE);
2585                 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
2586                 memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
2587         }
2588
2589         /*
2590          * Next check the srb status
2591          */
2592         switch( (le32_to_cpu(srbreply->srb_status))&0x3f){
2593         case SRB_STATUS_ERROR_RECOVERY:
2594         case SRB_STATUS_PENDING:
2595         case SRB_STATUS_SUCCESS:
2596                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
2597                 break;
2598         case SRB_STATUS_DATA_OVERRUN:
2599                 switch(scsicmd->cmnd[0]){
2600                 case  READ_6:
2601                 case  WRITE_6:
2602                 case  READ_10:
2603                 case  WRITE_10:
2604                 case  READ_12:
2605                 case  WRITE_12:
2606                 case  READ_16:
2607                 case  WRITE_16:
2608                         if (le32_to_cpu(srbreply->data_xfer_length) < scsicmd->underflow) {
2609                                 printk(KERN_WARNING"aacraid: SCSI CMD underflow\n");
2610                         } else {
2611                                 printk(KERN_WARNING"aacraid: SCSI CMD Data Overrun\n");
2612                         }
2613                         scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
2614                         break;
2615                 case INQUIRY: {
2616                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
2617                         break;
2618                 }
2619                 default:
2620                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
2621                         break;
2622                 }
2623                 break;
2624         case SRB_STATUS_ABORTED:
2625                 scsicmd->result = DID_ABORT << 16 | ABORT << 8;
2626                 break;
2627         case SRB_STATUS_ABORT_FAILED:
2628                 // Not sure about this one - but assuming the hba was trying to abort for some reason
2629                 scsicmd->result = DID_ERROR << 16 | ABORT << 8;
2630                 break;
2631         case SRB_STATUS_PARITY_ERROR:
2632                 scsicmd->result = DID_PARITY << 16 | MSG_PARITY_ERROR << 8;
2633                 break;
2634         case SRB_STATUS_NO_DEVICE:
2635         case SRB_STATUS_INVALID_PATH_ID:
2636         case SRB_STATUS_INVALID_TARGET_ID:
2637         case SRB_STATUS_INVALID_LUN:
2638         case SRB_STATUS_SELECTION_TIMEOUT:
2639                 scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8;
2640                 break;
2641
2642         case SRB_STATUS_COMMAND_TIMEOUT:
2643         case SRB_STATUS_TIMEOUT:
2644                 scsicmd->result = DID_TIME_OUT << 16 | COMMAND_COMPLETE << 8;
2645                 break;
2646
2647         case SRB_STATUS_BUSY:
2648                 scsicmd->result = DID_BUS_BUSY << 16 | COMMAND_COMPLETE << 8;
2649                 break;
2650
2651         case SRB_STATUS_BUS_RESET:
2652                 scsicmd->result = DID_RESET << 16 | COMMAND_COMPLETE << 8;
2653                 break;
2654
2655         case SRB_STATUS_MESSAGE_REJECTED:
2656                 scsicmd->result = DID_ERROR << 16 | MESSAGE_REJECT << 8;
2657                 break;
2658         case SRB_STATUS_REQUEST_FLUSHED:
2659         case SRB_STATUS_ERROR:
2660         case SRB_STATUS_INVALID_REQUEST:
2661         case SRB_STATUS_REQUEST_SENSE_FAILED:
2662         case SRB_STATUS_NO_HBA:
2663         case SRB_STATUS_UNEXPECTED_BUS_FREE:
2664         case SRB_STATUS_PHASE_SEQUENCE_FAILURE:
2665         case SRB_STATUS_BAD_SRB_BLOCK_LENGTH:
2666         case SRB_STATUS_DELAYED_RETRY:
2667         case SRB_STATUS_BAD_FUNCTION:
2668         case SRB_STATUS_NOT_STARTED:
2669         case SRB_STATUS_NOT_IN_USE:
2670         case SRB_STATUS_FORCE_ABORT:
2671         case SRB_STATUS_DOMAIN_VALIDATION_FAIL:
2672         default:
2673 #ifdef AAC_DETAILED_STATUS_INFO
2674                 printk("aacraid: SRB ERROR(%u) %s scsi cmd 0x%x - scsi status 0x%x\n",
2675                         le32_to_cpu(srbreply->srb_status) & 0x3F,
2676                         aac_get_status_string(
2677                                 le32_to_cpu(srbreply->srb_status) & 0x3F),
2678                         scsicmd->cmnd[0],
2679                         le32_to_cpu(srbreply->scsi_status));
2680 #endif
2681                 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
2682                 break;
2683         }
2684         if (le32_to_cpu(srbreply->scsi_status) == SAM_STAT_CHECK_CONDITION) {
2685                 int len;
2686                 scsicmd->result |= SAM_STAT_CHECK_CONDITION;
2687                 len = min_t(u32, le32_to_cpu(srbreply->sense_data_size),
2688                             SCSI_SENSE_BUFFERSIZE);
2689 #ifdef AAC_DETAILED_STATUS_INFO
2690                 printk(KERN_WARNING "aac_srb_callback: check condition, status = %d len=%d\n",
2691                                         le32_to_cpu(srbreply->status), len);
2692 #endif
2693                 memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
2694         }
2695         /*
2696          * OR in the scsi status (already shifted up a bit)
2697          */
2698         scsicmd->result |= le32_to_cpu(srbreply->scsi_status);
2699
2700         aac_fib_complete(fibptr);
2701         aac_fib_free(fibptr);
2702         scsicmd->scsi_done(scsicmd);
2703 }
2704
2705 /**
2706  *
2707  * aac_send_scb_fib
2708  * @scsicmd: the scsi command block
2709  *
2710  * This routine will form a FIB and fill in the aac_srb from the
2711  * scsicmd passed in.
2712  */
2713
2714 static int aac_send_srb_fib(struct scsi_cmnd* scsicmd)
2715 {
2716         struct fib* cmd_fibcontext;
2717         struct aac_dev* dev;
2718         int status;
2719
2720         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2721         if (scmd_id(scsicmd) >= dev->maximum_num_physicals ||
2722                         scsicmd->device->lun > 7) {
2723                 scsicmd->result = DID_NO_CONNECT << 16;
2724                 scsicmd->scsi_done(scsicmd);
2725                 return 0;
2726         }
2727
2728         /*
2729          *      Allocate and initialize a Fib then setup a BlockWrite command
2730          */
2731         if (!(cmd_fibcontext = aac_fib_alloc(dev))) {
2732                 return -1;
2733         }
2734         status = aac_adapter_scsi(cmd_fibcontext, scsicmd);
2735
2736         /*
2737          *      Check that the command queued to the controller
2738          */
2739         if (status == -EINPROGRESS) {
2740                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
2741                 return 0;
2742         }
2743
2744         printk(KERN_WARNING "aac_srb: aac_fib_send failed with status: %d\n", status);
2745         aac_fib_complete(cmd_fibcontext);
2746         aac_fib_free(cmd_fibcontext);
2747
2748         return -1;
2749 }
2750
2751 static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* psg)
2752 {
2753         struct aac_dev *dev;
2754         unsigned long byte_count = 0;
2755         int nseg;
2756
2757         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2758         // Get rid of old data
2759         psg->count = 0;
2760         psg->sg[0].addr = 0;
2761         psg->sg[0].count = 0;
2762
2763         nseg = scsi_dma_map(scsicmd);
2764         BUG_ON(nseg < 0);
2765         if (nseg) {
2766                 struct scatterlist *sg;
2767                 int i;
2768
2769                 psg->count = cpu_to_le32(nseg);
2770
2771                 scsi_for_each_sg(scsicmd, sg, nseg, i) {
2772                         psg->sg[i].addr = cpu_to_le32(sg_dma_address(sg));
2773                         psg->sg[i].count = cpu_to_le32(sg_dma_len(sg));
2774                         byte_count += sg_dma_len(sg);
2775                 }
2776                 /* hba wants the size to be exact */
2777                 if (byte_count > scsi_bufflen(scsicmd)) {
2778                         u32 temp = le32_to_cpu(psg->sg[i-1].count) -
2779                                 (byte_count - scsi_bufflen(scsicmd));
2780                         psg->sg[i-1].count = cpu_to_le32(temp);
2781                         byte_count = scsi_bufflen(scsicmd);
2782                 }
2783                 /* Check for command underflow */
2784                 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2785                         printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2786                                         byte_count, scsicmd->underflow);
2787                 }
2788         }
2789         return byte_count;
2790 }
2791
2792
2793 static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* psg)
2794 {
2795         struct aac_dev *dev;
2796         unsigned long byte_count = 0;
2797         u64 addr;
2798         int nseg;
2799
2800         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2801         // Get rid of old data
2802         psg->count = 0;
2803         psg->sg[0].addr[0] = 0;
2804         psg->sg[0].addr[1] = 0;
2805         psg->sg[0].count = 0;
2806
2807         nseg = scsi_dma_map(scsicmd);
2808         BUG_ON(nseg < 0);
2809         if (nseg) {
2810                 struct scatterlist *sg;
2811                 int i;
2812
2813                 scsi_for_each_sg(scsicmd, sg, nseg, i) {
2814                         int count = sg_dma_len(sg);
2815                         addr = sg_dma_address(sg);
2816                         psg->sg[i].addr[0] = cpu_to_le32(addr & 0xffffffff);
2817                         psg->sg[i].addr[1] = cpu_to_le32(addr>>32);
2818                         psg->sg[i].count = cpu_to_le32(count);
2819                         byte_count += count;
2820                 }
2821                 psg->count = cpu_to_le32(nseg);
2822                 /* hba wants the size to be exact */
2823                 if (byte_count > scsi_bufflen(scsicmd)) {
2824                         u32 temp = le32_to_cpu(psg->sg[i-1].count) -
2825                                 (byte_count - scsi_bufflen(scsicmd));
2826                         psg->sg[i-1].count = cpu_to_le32(temp);
2827                         byte_count = scsi_bufflen(scsicmd);
2828                 }
2829                 /* Check for command underflow */
2830                 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2831                         printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2832                                         byte_count, scsicmd->underflow);
2833                 }
2834         }
2835         return byte_count;
2836 }
2837
2838 static unsigned long aac_build_sgraw(struct scsi_cmnd* scsicmd, struct sgmapraw* psg)
2839 {
2840         unsigned long byte_count = 0;
2841         int nseg;
2842
2843         // Get rid of old data
2844         psg->count = 0;
2845         psg->sg[0].next = 0;
2846         psg->sg[0].prev = 0;
2847         psg->sg[0].addr[0] = 0;
2848         psg->sg[0].addr[1] = 0;
2849         psg->sg[0].count = 0;
2850         psg->sg[0].flags = 0;
2851
2852         nseg = scsi_dma_map(scsicmd);
2853         BUG_ON(nseg < 0);
2854         if (nseg) {
2855                 struct scatterlist *sg;
2856                 int i;
2857
2858                 scsi_for_each_sg(scsicmd, sg, nseg, i) {
2859                         int count = sg_dma_len(sg);
2860                         u64 addr = sg_dma_address(sg);
2861                         psg->sg[i].next = 0;
2862                         psg->sg[i].prev = 0;
2863                         psg->sg[i].addr[1] = cpu_to_le32((u32)(addr>>32));
2864                         psg->sg[i].addr[0] = cpu_to_le32((u32)(addr & 0xffffffff));
2865                         psg->sg[i].count = cpu_to_le32(count);
2866                         psg->sg[i].flags = 0;
2867                         byte_count += count;
2868                 }
2869                 psg->count = cpu_to_le32(nseg);
2870                 /* hba wants the size to be exact */
2871                 if (byte_count > scsi_bufflen(scsicmd)) {
2872                         u32 temp = le32_to_cpu(psg->sg[i-1].count) -
2873                                 (byte_count - scsi_bufflen(scsicmd));
2874                         psg->sg[i-1].count = cpu_to_le32(temp);
2875                         byte_count = scsi_bufflen(scsicmd);
2876                 }
2877                 /* Check for command underflow */
2878                 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2879                         printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2880                                         byte_count, scsicmd->underflow);
2881                 }
2882         }
2883         return byte_count;
2884 }
2885
2886 #ifdef AAC_DETAILED_STATUS_INFO
2887
2888 struct aac_srb_status_info {
2889         u32     status;
2890         char    *str;
2891 };
2892
2893
2894 static struct aac_srb_status_info srb_status_info[] = {
2895         { SRB_STATUS_PENDING,           "Pending Status"},
2896         { SRB_STATUS_SUCCESS,           "Success"},
2897         { SRB_STATUS_ABORTED,           "Aborted Command"},
2898         { SRB_STATUS_ABORT_FAILED,      "Abort Failed"},
2899         { SRB_STATUS_ERROR,             "Error Event"},
2900         { SRB_STATUS_BUSY,              "Device Busy"},
2901         { SRB_STATUS_INVALID_REQUEST,   "Invalid Request"},
2902         { SRB_STATUS_INVALID_PATH_ID,   "Invalid Path ID"},
2903         { SRB_STATUS_NO_DEVICE,         "No Device"},
2904         { SRB_STATUS_TIMEOUT,           "Timeout"},
2905         { SRB_STATUS_SELECTION_TIMEOUT, "Selection Timeout"},
2906         { SRB_STATUS_COMMAND_TIMEOUT,   "Command Timeout"},
2907         { SRB_STATUS_MESSAGE_REJECTED,  "Message Rejected"},
2908         { SRB_STATUS_BUS_RESET,         "Bus Reset"},
2909         { SRB_STATUS_PARITY_ERROR,      "Parity Error"},
2910         { SRB_STATUS_REQUEST_SENSE_FAILED,"Request Sense Failed"},
2911         { SRB_STATUS_NO_HBA,            "No HBA"},
2912         { SRB_STATUS_DATA_OVERRUN,      "Data Overrun/Data Underrun"},
2913         { SRB_STATUS_UNEXPECTED_BUS_FREE,"Unexpected Bus Free"},
2914         { SRB_STATUS_PHASE_SEQUENCE_FAILURE,"Phase Error"},
2915         { SRB_STATUS_BAD_SRB_BLOCK_LENGTH,"Bad Srb Block Length"},
2916         { SRB_STATUS_REQUEST_FLUSHED,   "Request Flushed"},
2917         { SRB_STATUS_DELAYED_RETRY,     "Delayed Retry"},
2918         { SRB_STATUS_INVALID_LUN,       "Invalid LUN"},
2919         { SRB_STATUS_INVALID_TARGET_ID, "Invalid TARGET ID"},
2920         { SRB_STATUS_BAD_FUNCTION,      "Bad Function"},
2921         { SRB_STATUS_ERROR_RECOVERY,    "Error Recovery"},
2922         { SRB_STATUS_NOT_STARTED,       "Not Started"},
2923         { SRB_STATUS_NOT_IN_USE,        "Not In Use"},
2924         { SRB_STATUS_FORCE_ABORT,       "Force Abort"},
2925         { SRB_STATUS_DOMAIN_VALIDATION_FAIL,"Domain Validation Failure"},
2926         { 0xff,                         "Unknown Error"}
2927 };
2928
2929 char *aac_get_status_string(u32 status)
2930 {
2931         int i;
2932
2933         for (i = 0; i < ARRAY_SIZE(srb_status_info); i++)
2934                 if (srb_status_info[i].status == status)
2935                         return srb_status_info[i].str;
2936
2937         return "Bad Status Code";
2938 }
2939
2940 #endif