drivers/scsi/aacraid/aachba.c

   1 /*
   2  *      Adaptec AAC series RAID controller driver
   3  *      (c) Copyright 2001 Red Hat Inc. <alan@redhat.com>
   4  *
   5  * based on the old aacraid driver that is..
   6  * Adaptec aacraid device driver for Linux.
   7  *
   8  * Copyright (c) 2000 Adaptec, Inc. (aacraid@adaptec.com)
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2, or (at your option)
  13  * any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; see the file COPYING.  If not, write to
  22  * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
  23  *
  24  */
  25
  26 #include <linux/kernel.h>
  27 #include <linux/init.h>
  28 #include <linux/types.h>
  29 #include <linux/sched.h>
  30 #include <linux/pci.h>
  31 #include <linux/spinlock.h>
  32 #include <linux/slab.h>
  33 #include <linux/completion.h>
  34 #include <linux/blkdev.h>
  35 #include <asm/semaphore.h>
  36 #include <asm/uaccess.h>
  37
  38 #include <scsi/scsi.h>
  39 #include <scsi/scsi_cmnd.h>
  40 #include <scsi/scsi_device.h>
  41 #include <scsi/scsi_host.h>
  42
  43 #include "aacraid.h"
  44
  45 /* values for inqd_pdt: Peripheral device type in plain English */
  46 #define INQD_PDT_DA     0x00    /* Direct-access (DISK) device */
  47 #define INQD_PDT_PROC   0x03    /* Processor device */
  48 #define INQD_PDT_CHNGR  0x08    /* Changer (jukebox, scsi2) */
  49 #define INQD_PDT_COMM   0x09    /* Communication device (scsi2) */
  50 #define INQD_PDT_NOLUN2 0x1f    /* Unknown Device (scsi2) */
  51 #define INQD_PDT_NOLUN  0x7f    /* Logical Unit Not Present */
  52
  53 #define INQD_PDT_DMASK  0x1F    /* Peripheral Device Type Mask */
  54 #define INQD_PDT_QMASK  0xE0    /* Peripheral Device Qualifer Mask */
  55
  56 #define MAX_FIB_DATA (sizeof(struct hw_fib) - sizeof(FIB_HEADER))
  57
  58 #define MAX_DRIVER_SG_SEGMENT_COUNT 17
  59
  60 /*
  61  *      Sense codes
  62  */
  63
  64 #define SENCODE_NO_SENSE                        0x00
  65 #define SENCODE_END_OF_DATA                     0x00
  66 #define SENCODE_BECOMING_READY                  0x04
  67 #define SENCODE_INIT_CMD_REQUIRED               0x04
  68 #define SENCODE_PARAM_LIST_LENGTH_ERROR         0x1A
  69 #define SENCODE_INVALID_COMMAND                 0x20
  70 #define SENCODE_LBA_OUT_OF_RANGE                0x21
  71 #define SENCODE_INVALID_CDB_FIELD               0x24
  72 #define SENCODE_LUN_NOT_SUPPORTED               0x25
  73 #define SENCODE_INVALID_PARAM_FIELD             0x26
  74 #define SENCODE_PARAM_NOT_SUPPORTED             0x26
  75 #define SENCODE_PARAM_VALUE_INVALID             0x26
  76 #define SENCODE_RESET_OCCURRED                  0x29
  77 #define SENCODE_LUN_NOT_SELF_CONFIGURED_YET     0x3E
  78 #define SENCODE_INQUIRY_DATA_CHANGED            0x3F
  79 #define SENCODE_SAVING_PARAMS_NOT_SUPPORTED     0x39
  80 #define SENCODE_DIAGNOSTIC_FAILURE              0x40
  81 #define SENCODE_INTERNAL_TARGET_FAILURE         0x44
  82 #define SENCODE_INVALID_MESSAGE_ERROR           0x49
  83 #define SENCODE_LUN_FAILED_SELF_CONFIG          0x4c
  84 #define SENCODE_OVERLAPPED_COMMAND              0x4E
  85
  86 /*
  87  *      Additional sense codes
  88  */
  89
  90 #define ASENCODE_NO_SENSE                       0x00
  91 #define ASENCODE_END_OF_DATA                    0x05
  92 #define ASENCODE_BECOMING_READY                 0x01
  93 #define ASENCODE_INIT_CMD_REQUIRED              0x02
  94 #define ASENCODE_PARAM_LIST_LENGTH_ERROR        0x00
  95 #define ASENCODE_INVALID_COMMAND                0x00
  96 #define ASENCODE_LBA_OUT_OF_RANGE               0x00
  97 #define ASENCODE_INVALID_CDB_FIELD              0x00
  98 #define ASENCODE_LUN_NOT_SUPPORTED              0x00
  99 #define ASENCODE_INVALID_PARAM_FIELD            0x00
 100 #define ASENCODE_PARAM_NOT_SUPPORTED            0x01
 101 #define ASENCODE_PARAM_VALUE_INVALID            0x02
 102 #define ASENCODE_RESET_OCCURRED                 0x00
 103 #define ASENCODE_LUN_NOT_SELF_CONFIGURED_YET    0x00
 104 #define ASENCODE_INQUIRY_DATA_CHANGED           0x03
 105 #define ASENCODE_SAVING_PARAMS_NOT_SUPPORTED    0x00
 106 #define ASENCODE_DIAGNOSTIC_FAILURE             0x80
 107 #define ASENCODE_INTERNAL_TARGET_FAILURE        0x00
 108 #define ASENCODE_INVALID_MESSAGE_ERROR          0x00
 109 #define ASENCODE_LUN_FAILED_SELF_CONFIG         0x00
 110 #define ASENCODE_OVERLAPPED_COMMAND             0x00
 111
 112 #define BYTE0(x) (unsigned char)(x)
 113 #define BYTE1(x) (unsigned char)((x) >> 8)
 114 #define BYTE2(x) (unsigned char)((x) >> 16)
 115 #define BYTE3(x) (unsigned char)((x) >> 24)
 116
 117 /*------------------------------------------------------------------------------
 118  *              S T R U C T S / T Y P E D E F S
 119  *----------------------------------------------------------------------------*/
 120 /* SCSI inquiry data */
 121 struct inquiry_data {
 122         u8 inqd_pdt;    /* Peripheral qualifier | Peripheral Device Type  */
 123         u8 inqd_dtq;    /* RMB | Device Type Qualifier  */
 124         u8 inqd_ver;    /* ISO version | ECMA version | ANSI-approved version */
 125         u8 inqd_rdf;    /* AENC | TrmIOP | Response data format */
 126         u8 inqd_len;    /* Additional length (n-4) */
 127         u8 inqd_pad1[2];/* Reserved - must be zero */
 128         u8 inqd_pad2;   /* RelAdr | WBus32 | WBus16 |  Sync  | Linked |Reserved| CmdQue | SftRe */
 129         u8 inqd_vid[8]; /* Vendor ID */
 130         u8 inqd_pid[16];/* Product ID */
 131         u8 inqd_prl[4]; /* Product Revision Level */
 132 };
 133
 134 /*
 135  *              M O D U L E   G L O B A L S
 136  */
 137
 138 static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* sgmap);
 139 static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* psg);
 140 static int aac_send_srb_fib(struct scsi_cmnd* scsicmd);
 141 #ifdef AAC_DETAILED_STATUS_INFO
 142 static char *aac_get_status_string(u32 status);
 143 #endif
 144
 145 /*
 146  *      Non dasd selection is handled entirely in aachba now
 147  */
 148
 149 MODULE_PARM(nondasd, "i");
 150 MODULE_PARM_DESC(nondasd, "Control scanning of hba for nondasd devices. 0=off, 1=on");
 151 MODULE_PARM(dacmode, "i");
 152 MODULE_PARM_DESC(dacmode, "Control whether dma addressing is using 64 bit DAC. 0=off, 1=on");
 153 MODULE_PARM(commit, "i");
 154 MODULE_PARM_DESC(commit, "Control whether a COMMIT_CONFIG is issued to the adapter for foreign arrays.\nThis is typically needed in systems that do not have a BIOS. 0=off, 1=on");
 155
 156 static int nondasd = -1;
 157 static int dacmode = -1;
 158
 159 static int commit = -1;
 160
 161 /**
 162  *      aac_get_config_status   -       check the adapter configuration
 163  *      @common: adapter to query
 164  *
 165  *      Query config status, and commit the configuration if needed.
 166  */
 167 int aac_get_config_status(struct aac_dev *dev)
 168 {
 169         int status = 0;
 170         struct fib * fibptr;
 171
 172         if (!(fibptr = fib_alloc(dev)))
 173                 return -ENOMEM;
 174
 175         fib_init(fibptr);
 176         {
 177                 struct aac_get_config_status *dinfo;
 178                 dinfo = (struct aac_get_config_status *) fib_data(fibptr);
 179
 180                 dinfo->command = cpu_to_le32(VM_ContainerConfig);
 181                 dinfo->type = cpu_to_le32(CT_GET_CONFIG_STATUS);
 182                 dinfo->count = cpu_to_le32(sizeof(((struct aac_get_config_status_resp *)NULL)->data));
 183         }
 184
 185         status = fib_send(ContainerCommand,
 186                             fibptr,
 187                             sizeof (struct aac_get_config_status),
 188                             FsaNormal,
 189                             1, 1,
 190                             NULL, NULL);
 191         if (status < 0 ) {
 192                 printk(KERN_WARNING "aac_get_config_status: SendFIB failed.\n");
 193         } else {
 194                 struct aac_get_config_status_resp *reply
 195                   = (struct aac_get_config_status_resp *) fib_data(fibptr);
 196                 dprintk((KERN_WARNING
 197                   "aac_get_config_status: response=%d status=%d action=%d\n",
 198                   reply->response, reply->status, reply->data.action));
 199                 if ((reply->response != ST_OK)
 200                  || (reply->status != CT_OK)
 201                  || (reply->data.action > CFACT_PAUSE)) {
 202                         printk(KERN_WARNING "aac_get_config_status: Will not issue the Commit Configuration\n");
 203                         status = -EINVAL;
 204                 }
 205         }
 206         fib_complete(fibptr);
 207         /* Send a CT_COMMIT_CONFIG to enable discovery of devices */
 208         if (status >= 0) {
 209                 if (commit == 1) {
 210                         struct aac_commit_config * dinfo;
 211                         fib_init(fibptr);
 212                         dinfo = (struct aac_commit_config *) fib_data(fibptr);
 213
 214                         dinfo->command = cpu_to_le32(VM_ContainerConfig);
 215                         dinfo->type = cpu_to_le32(CT_COMMIT_CONFIG);
 216
 217                         status = fib_send(ContainerCommand,
 218                                     fibptr,
 219                                     sizeof (struct aac_commit_config),
 220                                     FsaNormal,
 221                                     1, 1,
 222                                     NULL, NULL);
 223                         fib_complete(fibptr);
 224                 } else if (commit == 0) {
 225                         printk(KERN_WARNING
 226                           "aac_get_config_status: Foreign device configurations are being ignored\n");
 227                 }
 228         }
 229         fib_free(fibptr);
 230         return status;
 231 }
 232
 233 /**
 234  *      aac_get_containers      -       list containers
 235  *      @common: adapter to probe
 236  *
 237  *      Make a list of all containers on this controller
 238  */
 239 int aac_get_containers(struct aac_dev *dev)
 240 {
 241         struct fsa_dev_info *fsa_dev_ptr;
 242         u32 index;
 243         int status = 0;
 244         struct fib * fibptr;
 245         unsigned instance;
 246         struct aac_get_container_count *dinfo;
 247         struct aac_get_container_count_resp *dresp;
 248         int maximum_num_containers = MAXIMUM_NUM_CONTAINERS;
 249
 250         instance = dev->scsi_host_ptr->unique_id;
 251
 252         if (!(fibptr = fib_alloc(dev)))
 253                 return -ENOMEM;
 254
 255         fib_init(fibptr);
 256         dinfo = (struct aac_get_container_count *) fib_data(fibptr);
 257         dinfo->command = cpu_to_le32(VM_ContainerConfig);
 258         dinfo->type = cpu_to_le32(CT_GET_CONTAINER_COUNT);
 259
 260         status = fib_send(ContainerCommand,
 261                     fibptr,
 262                     sizeof (struct aac_get_container_count),
 263                     FsaNormal,
 264                     1, 1,
 265                     NULL, NULL);
 266         if (status >= 0) {
 267                 dresp = (struct aac_get_container_count_resp *)fib_data(fibptr);
 268                 maximum_num_containers = dresp->ContainerSwitchEntries;
 269                 fib_complete(fibptr);
 270         }
 271
 272         if (maximum_num_containers < MAXIMUM_NUM_CONTAINERS)
 273                 maximum_num_containers = MAXIMUM_NUM_CONTAINERS;
 274
 275         fsa_dev_ptr = (struct fsa_dev_info *) kmalloc(
 276           sizeof(*fsa_dev_ptr) * maximum_num_containers, GFP_KERNEL);
 277         if (!fsa_dev_ptr) {
 278                 fib_free(fibptr);
 279                 return -ENOMEM;
 280         }
 281         memset(fsa_dev_ptr, 0, sizeof(*fsa_dev_ptr) * maximum_num_containers);
 282
 283         dev->fsa_dev = fsa_dev_ptr;
 284         dev->maximum_num_containers = maximum_num_containers;
 285
 286         for (index = 0; index < dev->maximum_num_containers; index++) {
 287                 struct aac_query_mount *dinfo;
 288                 struct aac_mount *dresp;
 289
 290                 fsa_dev_ptr[index].devname[0] = '\0';
 291
 292                 fib_init(fibptr);
 293                 dinfo = (struct aac_query_mount *) fib_data(fibptr);
 294
 295                 dinfo->command = cpu_to_le32(VM_NameServe);
 296                 dinfo->count = cpu_to_le32(index);
 297                 dinfo->type = cpu_to_le32(FT_FILESYS);
 298
 299                 status = fib_send(ContainerCommand,
 300                                     fibptr,
 301                                     sizeof (struct aac_query_mount),
 302                                     FsaNormal,
 303                                     1, 1,
 304                                     NULL, NULL);
 305                 if (status < 0 ) {
 306                         printk(KERN_WARNING "aac_get_containers: SendFIB failed.\n");
 307                         break;
 308                 }
 309                 dresp = (struct aac_mount *)fib_data(fibptr);
 310
 311                 dprintk ((KERN_DEBUG
 312                   "VM_NameServe cid=%d status=%d vol=%d state=%d cap=%u\n",
 313                   (int)index, (int)le32_to_cpu(dresp->status),
 314                   (int)le32_to_cpu(dresp->mnt[0].vol),
 315                   (int)le32_to_cpu(dresp->mnt[0].state),
 316                   (unsigned)le32_to_cpu(dresp->mnt[0].capacity)));
 317                 if ((le32_to_cpu(dresp->status) == ST_OK) &&
 318                     (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE) &&
 319                     (le32_to_cpu(dresp->mnt[0].state) != FSCS_HIDDEN)) {
 320                         fsa_dev_ptr[index].valid = 1;
 321                         fsa_dev_ptr[index].type = le32_to_cpu(dresp->mnt[0].vol);
 322                         fsa_dev_ptr[index].size = le32_to_cpu(dresp->mnt[0].capacity);
 323                         if (le32_to_cpu(dresp->mnt[0].state) & FSCS_READONLY)
 324                                     fsa_dev_ptr[index].ro = 1;
 325                 }
 326                 fib_complete(fibptr);
 327                 /*
 328                  *      If there are no more containers, then stop asking.
 329                  */
 330                 if ((index + 1) >= le32_to_cpu(dresp->count)){
 331                         break;
 332                 }
 333         }
 334         fib_free(fibptr);
 335         return status;
 336 }
 337
 338 static void aac_io_done(struct scsi_cmnd * scsicmd)
 339 {
 340         unsigned long cpu_flags;
 341         struct Scsi_Host *host = scsicmd->device->host;
 342         spin_lock_irqsave(host->host_lock, cpu_flags);
 343         scsicmd->scsi_done(scsicmd);
 344         spin_unlock_irqrestore(host->host_lock, cpu_flags);
 345 }
 346
 347 static void get_container_name_callback(void *context, struct fib * fibptr)
 348 {
 349         struct aac_get_name_resp * get_name_reply;
 350         struct scsi_cmnd * scsicmd;
 351
 352         scsicmd = (struct scsi_cmnd *) context;
 353
 354         dprintk((KERN_DEBUG "get_container_name_callback[cpu %d]: t = %ld.\n", smp_processor_id(), jiffies));
 355         if (fibptr == NULL)
 356                 BUG();
 357
 358         get_name_reply = (struct aac_get_name_resp *) fib_data(fibptr);
 359         /* Failure is irrelevant, using default value instead */
 360         if ((le32_to_cpu(get_name_reply->status) == CT_OK)
 361          && (get_name_reply->data[0] != '\0')) {
 362                 int    count;
 363                 char * dp;
 364                 char * sp = get_name_reply->data;
 365                 sp[sizeof(((struct aac_get_name_resp *)NULL)->data)-1] = '\0';
 366                 while (*sp == ' ')
 367                         ++sp;
 368                 count = sizeof(((struct inquiry_data *)NULL)->inqd_pid);
 369                 dp = ((struct inquiry_data *)scsicmd->request_buffer)->inqd_pid;
 370                 if (*sp) do {
 371                         *dp++ = (*sp) ? *sp++ : ' ';
 372                 } while (--count > 0);
 373         }
 374         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
 375
 376         fib_complete(fibptr);
 377         fib_free(fibptr);
 378         aac_io_done(scsicmd);
 379 }
 380
 381 /**
 382  *      aac_get_container_name  -       get container name, none blocking.
 383  */
 384 static int aac_get_container_name(struct scsi_cmnd * scsicmd, int cid)
 385 {
 386         int status;
 387         struct aac_get_name *dinfo;
 388         struct fib * cmd_fibcontext;
 389         struct aac_dev * dev;
 390
 391         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
 392
 393         if (!(cmd_fibcontext = fib_alloc(dev)))
 394                 return -ENOMEM;
 395
 396         fib_init(cmd_fibcontext);
 397         dinfo = (struct aac_get_name *) fib_data(cmd_fibcontext);
 398
 399         dinfo->command = cpu_to_le32(VM_ContainerConfig);
 400         dinfo->type = cpu_to_le32(CT_READ_NAME);
 401         dinfo->cid = cpu_to_le32(cid);
 402         dinfo->count = cpu_to_le32(sizeof(((struct aac_get_name_resp *)NULL)->data));
 403
 404         status = fib_send(ContainerCommand,
 405                   cmd_fibcontext,
 406                   sizeof (struct aac_get_name),
 407                   FsaNormal,
 408                   0, 1,
 409                   (fib_callback) get_container_name_callback,
 410                   (void *) scsicmd);
 411
 412         /*
 413          *      Check that the command queued to the controller
 414          */
 415         if (status == -EINPROGRESS)
 416                 return 0;
 417
 418         printk(KERN_WARNING "aac_get_container_name: fib_send failed with status: %d.\n", status);
 419         fib_complete(cmd_fibcontext);
 420         fib_free(cmd_fibcontext);
 421         return -1;
 422 }
 423
 424 /**
 425  *      probe_container         -       query a logical volume
 426  *      @dev: device to query
 427  *      @cid: container identifier
 428  *
 429  *      Queries the controller about the given volume. The volume information
 430  *      is updated in the struct fsa_dev_info structure rather than returned.
 431  */
 432
 433 static int probe_container(struct aac_dev *dev, int cid)
 434 {
 435         struct fsa_dev_info *fsa_dev_ptr;
 436         int status;
 437         struct aac_query_mount *dinfo;
 438         struct aac_mount *dresp;
 439         struct fib * fibptr;
 440         unsigned instance;
 441
 442         fsa_dev_ptr = dev->fsa_dev;
 443         instance = dev->scsi_host_ptr->unique_id;
 444
 445         if (!(fibptr = fib_alloc(dev)))
 446                 return -ENOMEM;
 447
 448         fib_init(fibptr);
 449
 450         dinfo = (struct aac_query_mount *)fib_data(fibptr);
 451
 452         dinfo->command = cpu_to_le32(VM_NameServe);
 453         dinfo->count = cpu_to_le32(cid);
 454         dinfo->type = cpu_to_le32(FT_FILESYS);
 455
 456         status = fib_send(ContainerCommand,
 457                             fibptr,
 458                             sizeof(struct aac_query_mount),
 459                             FsaNormal,
 460                             1, 1,
 461                             NULL, NULL);
 462         if (status < 0) {
 463                 printk(KERN_WARNING "aacraid: probe_containers query failed.\n");
 464                 goto error;
 465         }
 466
 467         dresp = (struct aac_mount *) fib_data(fibptr);
 468
 469         if ((le32_to_cpu(dresp->status) == ST_OK) &&
 470             (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE) &&
 471             (le32_to_cpu(dresp->mnt[0].state) != FSCS_HIDDEN)) {
 472                 fsa_dev_ptr[cid].valid = 1;
 473                 fsa_dev_ptr[cid].type = le32_to_cpu(dresp->mnt[0].vol);
 474                 fsa_dev_ptr[cid].size = le32_to_cpu(dresp->mnt[0].capacity);
 475                 if (le32_to_cpu(dresp->mnt[0].state) & FSCS_READONLY)
 476                         fsa_dev_ptr[cid].ro = 1;
 477         }
 478
 479 error:
 480         fib_complete(fibptr);
 481         fib_free(fibptr);
 482
 483         return status;
 484 }
 485
 486 /* Local Structure to set SCSI inquiry data strings */
 487 struct scsi_inq {
 488         char vid[8];         /* Vendor ID */
 489         char pid[16];        /* Product ID */
 490         char prl[4];         /* Product Revision Level */
 491 };
 492
 493 /**
 494  *      InqStrCopy      -       string merge
 495  *      @a:     string to copy from
 496  *      @b:     string to copy to
 497  *
 498  *      Copy a String from one location to another
 499  *      without copying \0
 500  */
 501
 502 static void inqstrcpy(char *a, char *b)
 503 {
 504
 505         while(*a != (char)0)
 506                 *b++ = *a++;
 507 }
 508
 509 static char *container_types[] = {
 510         "None",
 511         "Volume",
 512         "Mirror",
 513         "Stripe",
 514         "RAID5",
 515         "SSRW",
 516         "SSRO",
 517         "Morph",
 518         "Legacy",
 519         "RAID4",
 520         "RAID10",
 521         "RAID00",
 522         "V-MIRRORS",
 523         "PSEUDO R4",
 524         "RAID50",
 525         "Unknown"
 526 };
 527
 528
 529
 530 /* Function: setinqstr
 531  *
 532  * Arguments: [1] pointer to void [1] int
 533  *
 534  * Purpose: Sets SCSI inquiry data strings for vendor, product
 535  * and revision level. Allows strings to be set in platform dependant
 536  * files instead of in OS dependant driver source.
 537  */
 538
 539 static void setinqstr(int devtype, void *data, int tindex)
 540 {
 541         struct scsi_inq *str;
 542         struct aac_driver_ident *mp;
 543
 544         mp = aac_get_driver_ident(devtype);
 545
 546         str = (struct scsi_inq *)(data); /* cast data to scsi inq block */
 547
 548         inqstrcpy (mp->vname, str->vid);
 549         inqstrcpy (mp->model, str->pid); /* last six chars reserved for vol type */
 550
 551         if (tindex < (sizeof(container_types)/sizeof(char *))){
 552                 char *findit = str->pid;
 553
 554                 for ( ; *findit != ' '; findit++); /* walk till we find a space */
 555                 /* RAID is superfluous in the context of a RAID device */
 556                 if (memcmp(findit-4, "RAID", 4) == 0)
 557                         *(findit -= 4) = ' ';
 558                 inqstrcpy (container_types[tindex], findit + 1);
 559         }
 560         inqstrcpy ("V1.0", str->prl);
 561 }
 562
 563 void set_sense(u8 *sense_buf, u8 sense_key, u8 sense_code,
 564                     u8 a_sense_code, u8 incorrect_length,
 565                     u8 bit_pointer, u16 field_pointer,
 566                     u32 residue)
 567 {
 568         sense_buf[0] = 0xF0;    /* Sense data valid, err code 70h (current error) */
 569         sense_buf[1] = 0;       /* Segment number, always zero */
 570
 571         if (incorrect_length) {
 572                 sense_buf[2] = sense_key | 0x20;/* Set ILI bit | sense key */
 573                 sense_buf[3] = BYTE3(residue);
 574                 sense_buf[4] = BYTE2(residue);
 575                 sense_buf[5] = BYTE1(residue);
 576                 sense_buf[6] = BYTE0(residue);
 577         } else
 578                 sense_buf[2] = sense_key;       /* Sense key */
 579
 580         if (sense_key == ILLEGAL_REQUEST)
 581                 sense_buf[7] = 10;      /* Additional sense length */
 582         else
 583                 sense_buf[7] = 6;       /* Additional sense length */
 584
 585         sense_buf[12] = sense_code;     /* Additional sense code */
 586         sense_buf[13] = a_sense_code;   /* Additional sense code qualifier */
 587         if (sense_key == ILLEGAL_REQUEST) {
 588                 sense_buf[15] = 0;
 589
 590                 if (sense_code == SENCODE_INVALID_PARAM_FIELD)
 591                         sense_buf[15] = 0x80;/* Std sense key specific field */
 592                 /* Illegal parameter is in the parameter block */
 593
 594                 if (sense_code == SENCODE_INVALID_CDB_FIELD)
 595                         sense_buf[15] = 0xc0;/* Std sense key specific field */
 596                 /* Illegal parameter is in the CDB block */
 597                 sense_buf[15] |= bit_pointer;
 598                 sense_buf[16] = field_pointer >> 8;     /* MSB */
 599                 sense_buf[17] = field_pointer;          /* LSB */
 600         }
 601 }
 602
 603 int aac_get_adapter_info(struct aac_dev* dev)
 604 {
 605         struct fib* fibptr;
 606         struct aac_adapter_info* info;
 607         int rcode;
 608         u32 tmp;
 609         if (!(fibptr = fib_alloc(dev)))
 610                 return -ENOMEM;
 611
 612         fib_init(fibptr);
 613         info = (struct aac_adapter_info*) fib_data(fibptr);
 614
 615         memset(info,0,sizeof(struct aac_adapter_info));
 616
 617         rcode = fib_send(RequestAdapterInfo,
 618                         fibptr,
 619                         sizeof(struct aac_adapter_info),
 620                         FsaNormal,
 621                         1, 1,
 622                         NULL,
 623                         NULL);
 624
 625         memcpy(&dev->adapter_info, info, sizeof(struct aac_adapter_info));
 626
 627         tmp = dev->adapter_info.kernelrev;
 628         printk(KERN_INFO"%s%d: kernel %d.%d.%d build %d\n",
 629                         dev->name, dev->id,
 630                         tmp>>24,(tmp>>16)&0xff,(tmp>>8)&0xff,
 631                         dev->adapter_info.kernelbuild);
 632         tmp = dev->adapter_info.monitorrev;
 633         printk(KERN_INFO"%s%d: monitor %d.%d.%d build %d\n",
 634                         dev->name, dev->id,
 635                         tmp>>24,(tmp>>16)&0xff,(tmp>>8)&0xff,
 636                         dev->adapter_info.monitorbuild);
 637         tmp = dev->adapter_info.biosrev;
 638         printk(KERN_INFO"%s%d: bios %d.%d.%d build %d\n",
 639                         dev->name, dev->id,
 640                         tmp>>24,(tmp>>16)&0xff,(tmp>>8)&0xff,
 641                         dev->adapter_info.biosbuild);
 642         printk(KERN_INFO"%s%d: serial %x%x\n",
 643                         dev->name, dev->id,
 644                         dev->adapter_info.serial[0],
 645                         dev->adapter_info.serial[1]);
 646
 647         dev->nondasd_support = 0;
 648         dev->raid_scsi_mode = 0;
 649         if(dev->adapter_info.options & AAC_OPT_NONDASD){
 650                 dev->nondasd_support = 1;
 651         }
 652
 653         /*
 654          * If the firmware supports ROMB RAID/SCSI mode and we are currently
 655          * in RAID/SCSI mode, set the flag. For now if in this mode we will
 656          * force nondasd support on. If we decide to allow the non-dasd flag
 657          * additional changes changes will have to be made to support
 658          * RAID/SCSI.  the function aac_scsi_cmd in this module will have to be
 659          * changed to support the new dev->raid_scsi_mode flag instead of
 660          * leaching off of the dev->nondasd_support flag. Also in linit.c the
 661          * function aac_detect will have to be modified where it sets up the
 662          * max number of channels based on the aac->nondasd_support flag only.
 663          */
 664         if ((dev->adapter_info.options & AAC_OPT_SCSI_MANAGED) &&
 665             (dev->adapter_info.options & AAC_OPT_RAID_SCSI_MODE)) {
 666                 dev->nondasd_support = 1;
 667                 dev->raid_scsi_mode = 1;
 668         }
 669         if (dev->raid_scsi_mode != 0)
 670                 printk(KERN_INFO "%s%d: ROMB RAID/SCSI mode enabled\n",
 671                                 dev->name, dev->id);
 672
 673         if(nondasd != -1) {
 674                 dev->nondasd_support = (nondasd!=0);
 675         }
 676         if(dev->nondasd_support != 0){
 677                 printk(KERN_INFO "%s%d: Non-DASD support enabled.\n",dev->name, dev->id);
 678         }
 679
 680         dev->dac_support = 0;
 681         if( (sizeof(dma_addr_t) > 4) && (dev->adapter_info.options & AAC_OPT_SGMAP_HOST64)){
 682                 printk(KERN_INFO "%s%d: 64bit support enabled.\n", dev->name, dev->id);
 683                 dev->dac_support = 1;
 684         }
 685
 686         if(dacmode != -1) {
 687                 dev->dac_support = (dacmode!=0);
 688         }
 689         if(dev->dac_support != 0) {
 690                 if (!pci_set_dma_mask(dev->pdev, 0xFFFFFFFFFFFFFFFFULL) &&
 691                         !pci_set_consistent_dma_mask(dev->pdev, 0xFFFFFFFFFFFFFFFFULL)) {
 692                         printk(KERN_INFO"%s%d: 64 Bit DAC enabled\n",
 693                                 dev->name, dev->id);
 694                 } else if (!pci_set_dma_mask(dev->pdev, 0xFFFFFFFFULL) &&
 695                         !pci_set_consistent_dma_mask(dev->pdev, 0xFFFFFFFFULL)) {
 696                         printk(KERN_INFO"%s%d: DMA mask set failed, 64 Bit DAC disabled\n",
 697                                 dev->name, dev->id);
 698                         dev->dac_support = 0;
 699                 } else {
 700                         printk(KERN_WARNING"%s%d: No suitable DMA available.\n",
 701                                 dev->name, dev->id);
 702                         rcode = -ENOMEM;
 703                 }
 704         }
 705
 706         fib_complete(fibptr);
 707         fib_free(fibptr);
 708
 709         return rcode;
 710 }
 711
 712
 713 static void read_callback(void *context, struct fib * fibptr)
 714 {
 715         struct aac_dev *dev;
 716         struct aac_read_reply *readreply;
 717         struct scsi_cmnd *scsicmd;
 718         u32 lba;
 719         u32 cid;
 720
 721         scsicmd = (struct scsi_cmnd *) context;
 722
 723         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
 724         cid = ID_LUN_TO_CONTAINER(scsicmd->device->id, scsicmd->device->lun);
 725
 726         lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
 727         dprintk((KERN_DEBUG "read_callback[cpu %d]: lba = %u, t = %ld.\n", smp_processor_id(), lba, jiffies));
 728
 729         if (fibptr == NULL)
 730                 BUG();
 731
 732         if(scsicmd->use_sg)
 733                 pci_unmap_sg(dev->pdev,
 734                         (struct scatterlist *)scsicmd->buffer,
 735                         scsicmd->use_sg,
 736                         scsicmd->sc_data_direction);
 737         else if(scsicmd->request_bufflen)
 738                 pci_unmap_single(dev->pdev, scsicmd->SCp.dma_handle,
 739                                  scsicmd->request_bufflen,
 740                                  scsicmd->sc_data_direction);
 741         readreply = (struct aac_read_reply *)fib_data(fibptr);
 742         if (le32_to_cpu(readreply->status) == ST_OK)
 743                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
 744         else {
 745                 printk(KERN_WARNING "read_callback: read failed, status = %d\n", readreply->status);
 746                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
 747                 set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
 748                                     HARDWARE_ERROR,
 749                                     SENCODE_INTERNAL_TARGET_FAILURE,
 750                                     ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
 751                                     0, 0);
 752                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
 753                   (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
 754                     ? sizeof(scsicmd->sense_buffer)
 755                     : sizeof(dev->fsa_dev[cid].sense_data));
 756         }
 757         fib_complete(fibptr);
 758         fib_free(fibptr);
 759
 760         aac_io_done(scsicmd);
 761 }
 762
 763 static void write_callback(void *context, struct fib * fibptr)
 764 {
 765         struct aac_dev *dev;
 766         struct aac_write_reply *writereply;
 767         struct scsi_cmnd *scsicmd;
 768         u32 lba;
 769         u32 cid;
 770
 771         scsicmd = (struct scsi_cmnd *) context;
 772         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
 773         cid = ID_LUN_TO_CONTAINER(scsicmd->device->id, scsicmd->device->lun);
 774
 775         lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
 776         dprintk((KERN_DEBUG "write_callback[cpu %d]: lba = %u, t = %ld.\n", smp_processor_id(), lba, jiffies));
 777         if (fibptr == NULL)
 778                 BUG();
 779
 780         if(scsicmd->use_sg)
 781                 pci_unmap_sg(dev->pdev,
 782                         (struct scatterlist *)scsicmd->buffer,
 783                         scsicmd->use_sg,
 784                         scsicmd->sc_data_direction);
 785         else if(scsicmd->request_bufflen)
 786                 pci_unmap_single(dev->pdev, scsicmd->SCp.dma_handle,
 787                                  scsicmd->request_bufflen,
 788                                  scsicmd->sc_data_direction);
 789
 790         writereply = (struct aac_write_reply *) fib_data(fibptr);
 791         if (le32_to_cpu(writereply->status) == ST_OK)
 792                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
 793         else {
 794                 printk(KERN_WARNING "write_callback: write failed, status = %d\n", writereply->status);
 795                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
 796                 set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
 797                                     HARDWARE_ERROR,
 798                                     SENCODE_INTERNAL_TARGET_FAILURE,
 799                                     ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
 800                                     0, 0);
 801                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
 802                                 sizeof(struct sense_data));
 803         }
 804
 805         fib_complete(fibptr);
 806         fib_free(fibptr);
 807         aac_io_done(scsicmd);
 808 }
 809
 810 int aac_read(struct scsi_cmnd * scsicmd, int cid)
 811 {
 812         u32 lba;
 813         u32 count;
 814         int status;
 815
 816         u16 fibsize;
 817         struct aac_dev *dev;
 818         struct fib * cmd_fibcontext;
 819
 820         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
 821         /*
 822          *      Get block address and transfer length
 823          */
 824         if (scsicmd->cmnd[0] == READ_6) /* 6 byte command */
 825         {
 826                 dprintk((KERN_DEBUG "aachba: received a read(6) command on id %d.\n", cid));
 827
 828                 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
 829                 count = scsicmd->cmnd[4];
 830
 831                 if (count == 0)
 832                         count = 256;
 833         } else {
 834                 dprintk((KERN_DEBUG "aachba: received a read(10) command on id %d.\n", cid));
 835
 836                 lba = (scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
 837                 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
 838         }
 839         dprintk((KERN_DEBUG "aac_read[cpu %d]: lba = %u, t = %ld.\n", smp_processor_id(), lba, jiffies));
 840         /*
 841          *      Alocate and initialize a Fib
 842          */
 843         if (!(cmd_fibcontext = fib_alloc(dev))) {
 844                 return -1;
 845         }
 846
 847         fib_init(cmd_fibcontext);
 848
 849         if(dev->dac_support == 1) {
 850                 struct aac_read64 *readcmd;
 851                 readcmd = (struct aac_read64 *) fib_data(cmd_fibcontext);
 852                 readcmd->command = cpu_to_le32(VM_CtHostRead64);
 853                 readcmd->cid = cpu_to_le16(cid);
 854                 readcmd->sector_count = cpu_to_le16(count);
 855                 readcmd->block = cpu_to_le32(lba);
 856                 readcmd->pad   = cpu_to_le16(0);
 857                 readcmd->flags = cpu_to_le16(0);
 858
 859                 aac_build_sg64(scsicmd, &readcmd->sg);
 860                 if(readcmd->sg.count > MAX_DRIVER_SG_SEGMENT_COUNT)
 861                         BUG();
 862                 fibsize = sizeof(struct aac_read64) + ((readcmd->sg.count - 1) * sizeof (struct sgentry64));
 863                 /*
 864                  *      Now send the Fib to the adapter
 865                  */
 866                 status = fib_send(ContainerCommand64,
 867                           cmd_fibcontext,
 868                           fibsize,
 869                           FsaNormal,
 870                           0, 1,
 871                           (fib_callback) read_callback,
 872                           (void *) scsicmd);
 873         } else {
 874                 struct aac_read *readcmd;
 875                 readcmd = (struct aac_read *) fib_data(cmd_fibcontext);
 876                 readcmd->command = cpu_to_le32(VM_CtBlockRead);
 877                 readcmd->cid = cpu_to_le32(cid);
 878                 readcmd->block = cpu_to_le32(lba);
 879                 readcmd->count = cpu_to_le32(count * 512);
 880
 881                 if (count * 512 > (64 * 1024))
 882                         BUG();
 883
 884                 aac_build_sg(scsicmd, &readcmd->sg);
 885                 if(readcmd->sg.count > MAX_DRIVER_SG_SEGMENT_COUNT)
 886                         BUG();
 887                 fibsize = sizeof(struct aac_read) + ((readcmd->sg.count - 1) * sizeof (struct sgentry));
 888                 /*
 889                  *      Now send the Fib to the adapter
 890                  */
 891                 status = fib_send(ContainerCommand,
 892                           cmd_fibcontext,
 893                           fibsize,
 894                           FsaNormal,
 895                           0, 1,
 896                           (fib_callback) read_callback,
 897                           (void *) scsicmd);
 898         }
 899
 900
 901
 902         /*
 903          *      Check that the command queued to the controller
 904          */
 905         if (status == -EINPROGRESS)
 906         {
 907                 dprintk("read queued.\n");
 908                 return 0;
 909         }
 910
 911         printk(KERN_WARNING "aac_read: fib_send failed with status: %d.\n", status);
 912         /*
 913          *      For some reason, the Fib didn't queue, return QUEUE_FULL
 914          */
 915         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_TASK_SET_FULL;
 916         aac_io_done(scsicmd);
 917         fib_complete(cmd_fibcontext);
 918         fib_free(cmd_fibcontext);
 919         return 0;
 920 }
 921
 922 static int aac_write(struct scsi_cmnd * scsicmd, int cid)
 923 {
 924         u32 lba;
 925         u32 count;
 926         int status;
 927         u16 fibsize;
 928         struct aac_dev *dev;
 929         struct fib * cmd_fibcontext;
 930
 931         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
 932         /*
 933          *      Get block address and transfer length
 934          */
 935         if (scsicmd->cmnd[0] == WRITE_6)        /* 6 byte command */
 936         {
 937                 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
 938                 count = scsicmd->cmnd[4];
 939                 if (count == 0)
 940                         count = 256;
 941         } else {
 942                 dprintk((KERN_DEBUG "aachba: received a write(10) command on id %d.\n", cid));
 943                 lba = (scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
 944                 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
 945         }
 946         dprintk((KERN_DEBUG "aac_write[cpu %d]: lba = %u, t = %ld.\n", smp_processor_id(), lba, jiffies));
 947         /*
 948          *      Allocate and initialize a Fib then setup a BlockWrite command
 949          */
 950         if (!(cmd_fibcontext = fib_alloc(dev))) {
 951                 scsicmd->result = DID_ERROR << 16;
 952                 aac_io_done(scsicmd);
 953                 return 0;
 954         }
 955         fib_init(cmd_fibcontext);
 956
 957         if(dev->dac_support == 1) {
 958                 struct aac_write64 *writecmd;
 959                 writecmd = (struct aac_write64 *) fib_data(cmd_fibcontext);
 960                 writecmd->command = cpu_to_le32(VM_CtHostWrite64);
 961                 writecmd->cid = cpu_to_le16(cid);
 962                 writecmd->sector_count = cpu_to_le16(count);
 963                 writecmd->block = cpu_to_le32(lba);
 964                 writecmd->pad   = cpu_to_le16(0);
 965                 writecmd->flags = cpu_to_le16(0);
 966
 967                 aac_build_sg64(scsicmd, &writecmd->sg);
 968                 if(writecmd->sg.count > MAX_DRIVER_SG_SEGMENT_COUNT)
 969                         BUG();
 970                 fibsize = sizeof(struct aac_write64) + ((writecmd->sg.count - 1) * sizeof (struct sgentry64));
 971                 /*
 972                  *      Now send the Fib to the adapter
 973                  */
 974                 status = fib_send(ContainerCommand64,
 975                           cmd_fibcontext,
 976                           fibsize,
 977                           FsaNormal,
 978                           0, 1,
 979                           (fib_callback) write_callback,
 980                           (void *) scsicmd);
 981         } else {
 982                 struct aac_write *writecmd;
 983                 writecmd = (struct aac_write *) fib_data(cmd_fibcontext);
 984                 writecmd->command = cpu_to_le32(VM_CtBlockWrite);
 985                 writecmd->cid = cpu_to_le32(cid);
 986                 writecmd->block = cpu_to_le32(lba);
 987                 writecmd->count = cpu_to_le32(count * 512);
 988                 writecmd->sg.count = cpu_to_le32(1);
 989                 /* ->stable is not used - it did mean which type of write */
 990
 991                 if (count * 512 > (64 * 1024)) {
 992                         BUG();
 993                 }
 994
 995                 aac_build_sg(scsicmd, &writecmd->sg);
 996                 if(writecmd->sg.count > MAX_DRIVER_SG_SEGMENT_COUNT)
 997                         BUG();
 998                 fibsize = sizeof(struct aac_write) + ((writecmd->sg.count - 1) * sizeof (struct sgentry));
 999                 /*
1000                  *      Now send the Fib to the adapter
1001                  */
1002                 status = fib_send(ContainerCommand,
1003                           cmd_fibcontext,
1004                           fibsize,
1005                           FsaNormal,
1006                           0, 1,
1007                           (fib_callback) write_callback,
1008                           (void *) scsicmd);
1009         }
1010
1011         /*
1012          *      Check that the command queued to the controller
1013          */
1014         if (status == -EINPROGRESS)
1015         {
1016                 dprintk("write queued.\n");
1017                 return 0;
1018         }
1019
1020         printk(KERN_WARNING "aac_write: fib_send failed with status: %d\n", status);
1021         /*
1022          *      For some reason, the Fib didn't queue, return QUEUE_FULL
1023          */
1024         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_TASK_SET_FULL;
1025         aac_io_done(scsicmd);
1026
1027         fib_complete(cmd_fibcontext);
1028         fib_free(cmd_fibcontext);
1029         return 0;
1030 }
1031
1032
1033 /**
1034  *      aac_scsi_cmd()          -       Process SCSI command
1035  *      @scsicmd:               SCSI command block
1036  *
1037  *      Emulate a SCSI command and queue the required request for the
1038  *      aacraid firmware.
1039  */
1040
1041 int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
1042 {
1043         u32 cid = 0;
1044         struct Scsi_Host *host = scsicmd->device->host;
1045         struct aac_dev *dev = (struct aac_dev *)host->hostdata;
1046         struct fsa_dev_info *fsa_dev_ptr = dev->fsa_dev;
1047         int cardtype = dev->cardtype;
1048         int ret;
1049
1050         /*
1051          *      If the bus, id or lun is out of range, return fail
1052          *      Test does not apply to ID 16, the pseudo id for the controller
1053          *      itself.
1054          */
1055         if (scsicmd->device->id != host->this_id) {
1056                 if ((scsicmd->device->channel == 0) ){
1057                         if( (scsicmd->device->id >= dev->maximum_num_containers) || (scsicmd->device->lun != 0)){
1058                                 scsicmd->result = DID_NO_CONNECT << 16;
1059                                 scsicmd->scsi_done(scsicmd);
1060                                 return 0;
1061                         }
1062                         cid = ID_LUN_TO_CONTAINER(scsicmd->device->id, scsicmd->device->lun);
1063
1064                         /*
1065                          *      If the target container doesn't exist, it may have
1066                          *      been newly created
1067                          */
1068                         if ((fsa_dev_ptr[cid].valid & 1) == 0) {
1069                                 switch (scsicmd->cmnd[0]) {
1070                                 case INQUIRY:
1071                                 case READ_CAPACITY:
1072                                 case TEST_UNIT_READY:
1073                                         spin_unlock_irq(host->host_lock);
1074                                         probe_container(dev, cid);
1075                                         spin_lock_irq(host->host_lock);
1076                                         if (fsa_dev_ptr[cid].valid == 0) {
1077                                                 scsicmd->result = DID_NO_CONNECT << 16;
1078                                                 scsicmd->scsi_done(scsicmd);
1079                                                 return 0;
1080                                         }
1081                                 default:
1082                                         break;
1083                                 }
1084                         }
1085                         /*
1086                          *      If the target container still doesn't exist,
1087                          *      return failure
1088                          */
1089                         if (fsa_dev_ptr[cid].valid == 0) {
1090                                 scsicmd->result = DID_BAD_TARGET << 16;
1091                                 scsicmd->scsi_done(scsicmd);
1092                                 return 0;
1093                         }
1094                 } else {  /* check for physical non-dasd devices */
1095                         if(dev->nondasd_support == 1){
1096                                 return aac_send_srb_fib(scsicmd);
1097                         } else {
1098                                 scsicmd->result = DID_NO_CONNECT << 16;
1099                                 scsicmd->scsi_done(scsicmd);
1100                                 return 0;
1101                         }
1102                 }
1103         }
1104         /*
1105          * else Command for the controller itself
1106          */
1107         else if ((scsicmd->cmnd[0] != INQUIRY) &&       /* only INQUIRY & TUR cmnd supported for controller */
1108                 (scsicmd->cmnd[0] != TEST_UNIT_READY))
1109         {
1110                 dprintk((KERN_WARNING "Only INQUIRY & TUR command supported for controller, rcvd = 0x%x.\n", scsicmd->cmnd[0]));
1111                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1112                 set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
1113                             ILLEGAL_REQUEST,
1114                             SENCODE_INVALID_COMMAND,
1115                             ASENCODE_INVALID_COMMAND, 0, 0, 0, 0);
1116                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1117                   (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
1118                     ? sizeof(scsicmd->sense_buffer)
1119                     : sizeof(dev->fsa_dev[cid].sense_data));
1120                 scsicmd->scsi_done(scsicmd);
1121                 return 0;
1122         }
1123
1124
1125         /* Handle commands here that don't really require going out to the adapter */
1126         switch (scsicmd->cmnd[0]) {
1127         case INQUIRY:
1128         {
1129                 struct inquiry_data *inq_data_ptr;
1130
1131                 dprintk((KERN_DEBUG "INQUIRY command, ID: %d.\n", scsicmd->device->id));
1132                 inq_data_ptr = (struct inquiry_data *)scsicmd->request_buffer;
1133                 memset(inq_data_ptr, 0, sizeof (struct inquiry_data));
1134
1135                 inq_data_ptr->inqd_ver = 2;     /* claim compliance to SCSI-2 */
1136                 inq_data_ptr->inqd_dtq = 0x80;  /* set RMB bit to one indicating that the medium is removable */
1137                 inq_data_ptr->inqd_rdf = 2;     /* A response data format value of two indicates that the data shall be in the format specified in SCSI-2 */
1138                 inq_data_ptr->inqd_len = 31;
1139                 /*Format for "pad2" is  RelAdr | WBus32 | WBus16 |  Sync  | Linked |Reserved| CmdQue | SftRe */
1140                 inq_data_ptr->inqd_pad2= 0x32 ;  /*WBus16|Sync|CmdQue */
1141                 /*
1142                  *      Set the Vendor, Product, and Revision Level
1143                  *      see: <vendor>.c i.e. aac.c
1144                  */
1145                 if (scsicmd->device->id == host->this_id) {
1146                         setinqstr(cardtype, (void *) (inq_data_ptr->inqd_vid), (sizeof(container_types)/sizeof(char *)));
1147                         inq_data_ptr->inqd_pdt = INQD_PDT_PROC; /* Processor device */
1148                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1149                         scsicmd->scsi_done(scsicmd);
1150                         return 0;
1151                 }
1152                 setinqstr(cardtype, (void *) (inq_data_ptr->inqd_vid), fsa_dev_ptr[cid].type);
1153                 inq_data_ptr->inqd_pdt = INQD_PDT_DA;   /* Direct/random access device */
1154                 return aac_get_container_name(scsicmd, cid);
1155         }
1156         case READ_CAPACITY:
1157         {
1158                 u32 capacity;
1159                 char *cp;
1160
1161                 dprintk((KERN_DEBUG "READ CAPACITY command.\n"));
1162                 if (fsa_dev_ptr[cid].size <= 0x100000000LL)
1163                         capacity = fsa_dev_ptr[cid].size - 1;
1164                 else
1165                         capacity = (u32)-1;
1166                 cp = scsicmd->request_buffer;
1167                 cp[0] = (capacity >> 24) & 0xff;
1168                 cp[1] = (capacity >> 16) & 0xff;
1169                 cp[2] = (capacity >> 8) & 0xff;
1170                 cp[3] = (capacity >> 0) & 0xff;
1171                 cp[4] = 0;
1172                 cp[5] = 0;
1173                 cp[6] = 2;
1174                 cp[7] = 0;
1175
1176                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1177                 scsicmd->scsi_done(scsicmd);
1178
1179                 return 0;
1180         }
1181
1182         case MODE_SENSE:
1183         {
1184                 char *mode_buf;
1185
1186                 dprintk((KERN_DEBUG "MODE SENSE command.\n"));
1187                 mode_buf = scsicmd->request_buffer;
1188                 mode_buf[0] = 3;        /* Mode data length */
1189                 mode_buf[1] = 0;        /* Medium type - default */
1190                 mode_buf[2] = 0;        /* Device-specific param, bit 8: 0/1 = write enabled/protected */
1191                 mode_buf[3] = 0;        /* Block descriptor length */
1192
1193                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1194                 scsicmd->scsi_done(scsicmd);
1195
1196                 return 0;
1197         }
1198         case MODE_SENSE_10:
1199         {
1200                 char *mode_buf;
1201
1202                 dprintk((KERN_DEBUG "MODE SENSE 10 byte command.\n"));
1203                 mode_buf = scsicmd->request_buffer;
1204                 mode_buf[0] = 0;        /* Mode data length (MSB) */
1205                 mode_buf[1] = 6;        /* Mode data length (LSB) */
1206                 mode_buf[2] = 0;        /* Medium type - default */
1207                 mode_buf[3] = 0;        /* Device-specific param, bit 8: 0/1 = write enabled/protected */
1208                 mode_buf[4] = 0;        /* reserved */
1209                 mode_buf[5] = 0;        /* reserved */
1210                 mode_buf[6] = 0;        /* Block descriptor length (MSB) */
1211                 mode_buf[7] = 0;        /* Block descriptor length (LSB) */
1212
1213                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1214                 scsicmd->scsi_done(scsicmd);
1215
1216                 return 0;
1217         }
1218         case REQUEST_SENSE:
1219                 dprintk((KERN_DEBUG "REQUEST SENSE command.\n"));
1220                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data, sizeof (struct sense_data));
1221                 memset(&dev->fsa_dev[cid].sense_data, 0, sizeof (struct sense_data));
1222                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1223                 scsicmd->scsi_done(scsicmd);
1224                 return 0;
1225
1226         case ALLOW_MEDIUM_REMOVAL:
1227                 dprintk((KERN_DEBUG "LOCK command.\n"));
1228                 if (scsicmd->cmnd[4])
1229                         fsa_dev_ptr[cid].locked = 1;
1230                 else
1231                         fsa_dev_ptr[cid].locked = 0;
1232
1233                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1234                 scsicmd->scsi_done(scsicmd);
1235                 return 0;
1236         /*
1237          *      These commands are all No-Ops
1238          */
1239         case TEST_UNIT_READY:
1240         case RESERVE:
1241         case RELEASE:
1242         case REZERO_UNIT:
1243         case REASSIGN_BLOCKS:
1244         case SEEK_10:
1245         case START_STOP:
1246                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1247                 scsicmd->scsi_done(scsicmd);
1248                 return 0;
1249         }
1250
1251         switch (scsicmd->cmnd[0])
1252         {
1253                 case READ_6:
1254                 case READ_10:
1255                         /*
1256                          *      Hack to keep track of ordinal number of the device that
1257                          *      corresponds to a container. Needed to convert
1258                          *      containers to /dev/sd device names
1259                          */
1260
1261                         spin_unlock_irq(host->host_lock);
1262                         if  (scsicmd->request->rq_disk)
1263                                 memcpy(fsa_dev_ptr[cid].devname,
1264                                         scsicmd->request->rq_disk->disk_name,
1265                                         8);
1266
1267                         ret = aac_read(scsicmd, cid);
1268                         spin_lock_irq(host->host_lock);
1269                         return ret;
1270
1271                 case WRITE_6:
1272                 case WRITE_10:
1273                         spin_unlock_irq(host->host_lock);
1274                         ret = aac_write(scsicmd, cid);
1275                         spin_lock_irq(host->host_lock);
1276                         return ret;
1277                 default:
1278                         /*
1279                          *      Unhandled commands
1280                          */
1281                         printk(KERN_WARNING "Unhandled SCSI Command: 0x%x.\n", scsicmd->cmnd[0]);
1282                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1283                         set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
1284                                 ILLEGAL_REQUEST, SENCODE_INVALID_COMMAND,
1285                                 ASENCODE_INVALID_COMMAND, 0, 0, 0, 0);
1286                         memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1287                           (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
1288                             ? sizeof(scsicmd->sense_buffer)
1289                             : sizeof(dev->fsa_dev[cid].sense_data));
1290                         scsicmd->scsi_done(scsicmd);
1291                         return 0;
1292         }
1293 }
1294
1295 static int query_disk(struct aac_dev *dev, void __user *arg)
1296 {
1297         struct aac_query_disk qd;
1298         struct fsa_dev_info *fsa_dev_ptr;
1299
1300         fsa_dev_ptr = dev->fsa_dev;
1301         if (copy_from_user(&qd, arg, sizeof (struct aac_query_disk)))
1302                 return -EFAULT;
1303         if (qd.cnum == -1)
1304                 qd.cnum = ID_LUN_TO_CONTAINER(qd.id, qd.lun);
1305         else if ((qd.bus == -1) && (qd.id == -1) && (qd.lun == -1))
1306         {
1307                 if (qd.cnum < 0 || qd.cnum >= dev->maximum_num_containers)
1308                         return -EINVAL;
1309                 qd.instance = dev->scsi_host_ptr->host_no;
1310                 qd.bus = 0;
1311                 qd.id = CONTAINER_TO_ID(qd.cnum);
1312                 qd.lun = CONTAINER_TO_LUN(qd.cnum);
1313         }
1314         else return -EINVAL;
1315
1316         qd.valid = fsa_dev_ptr[qd.cnum].valid;
1317         qd.locked = fsa_dev_ptr[qd.cnum].locked;
1318         qd.deleted = fsa_dev_ptr[qd.cnum].deleted;
1319
1320         if (fsa_dev_ptr[qd.cnum].devname[0] == '\0')
1321                 qd.unmapped = 1;
1322         else
1323                 qd.unmapped = 0;
1324
1325         strlcpy(qd.name, fsa_dev_ptr[qd.cnum].devname,
1326           min(sizeof(qd.name), sizeof(fsa_dev_ptr[qd.cnum].devname) + 1));
1327
1328         if (copy_to_user(arg, &qd, sizeof (struct aac_query_disk)))
1329                 return -EFAULT;
1330         return 0;
1331 }
1332
1333 static int force_delete_disk(struct aac_dev *dev, void __user *arg)
1334 {
1335         struct aac_delete_disk dd;
1336         struct fsa_dev_info *fsa_dev_ptr;
1337
1338         fsa_dev_ptr = dev->fsa_dev;
1339
1340         if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
1341                 return -EFAULT;
1342
1343         if (dd.cnum >= dev->maximum_num_containers)
1344                 return -EINVAL;
1345         /*
1346          *      Mark this container as being deleted.
1347          */
1348         fsa_dev_ptr[dd.cnum].deleted = 1;
1349         /*
1350          *      Mark the container as no longer valid
1351          */
1352         fsa_dev_ptr[dd.cnum].valid = 0;
1353         return 0;
1354 }
1355
1356 static int delete_disk(struct aac_dev *dev, void __user *arg)
1357 {
1358         struct aac_delete_disk dd;
1359         struct fsa_dev_info *fsa_dev_ptr;
1360
1361         fsa_dev_ptr = dev->fsa_dev;
1362
1363         if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
1364                 return -EFAULT;
1365
1366         if (dd.cnum >= dev->maximum_num_containers)
1367                 return -EINVAL;
1368         /*
1369          *      If the container is locked, it can not be deleted by the API.
1370          */
1371         if (fsa_dev_ptr[dd.cnum].locked)
1372                 return -EBUSY;
1373         else {
1374                 /*
1375                  *      Mark the container as no longer being valid.
1376                  */
1377                 fsa_dev_ptr[dd.cnum].valid = 0;
1378                 fsa_dev_ptr[dd.cnum].devname[0] = '\0';
1379                 return 0;
1380         }
1381 }
1382
1383 int aac_dev_ioctl(struct aac_dev *dev, int cmd, void __user *arg)
1384 {
1385         switch (cmd) {
1386         case FSACTL_QUERY_DISK:
1387                 return query_disk(dev, arg);
1388         case FSACTL_DELETE_DISK:
1389                 return delete_disk(dev, arg);
1390         case FSACTL_FORCE_DELETE_DISK:
1391                 return force_delete_disk(dev, arg);
1392         case FSACTL_GET_CONTAINERS:
1393                 return aac_get_containers(dev);
1394         default:
1395                 return -ENOTTY;
1396         }
1397 }
1398
1399 /**
1400  *
1401  * aac_srb_callback
1402  * @context: the context set in the fib - here it is scsi cmd
1403  * @fibptr: pointer to the fib
1404  *
1405  * Handles the completion of a scsi command to a non dasd device
1406  *
1407  */
1408
1409 static void aac_srb_callback(void *context, struct fib * fibptr)
1410 {
1411         struct aac_dev *dev;
1412         struct aac_srb_reply *srbreply;
1413         struct scsi_cmnd *scsicmd;
1414
1415         scsicmd = (struct scsi_cmnd *) context;
1416         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1417
1418         if (fibptr == NULL)
1419                 BUG();
1420
1421         srbreply = (struct aac_srb_reply *) fib_data(fibptr);
1422
1423         scsicmd->sense_buffer[0] = '\0';  /* Initialize sense valid flag to false */
1424         /*
1425          *      Calculate resid for sg
1426          */
1427
1428         scsicmd->resid = scsicmd->request_bufflen - srbreply->data_xfer_length;
1429
1430         if(scsicmd->use_sg)
1431                 pci_unmap_sg(dev->pdev,
1432                         (struct scatterlist *)scsicmd->buffer,
1433                         scsicmd->use_sg,
1434                         scsicmd->sc_data_direction);
1435         else if(scsicmd->request_bufflen)
1436                 pci_unmap_single(dev->pdev, scsicmd->SCp.dma_handle, scsicmd->request_bufflen,
1437                         scsicmd->sc_data_direction);
1438
1439         /*
1440          * First check the fib status
1441          */
1442
1443         if (le32_to_cpu(srbreply->status) != ST_OK){
1444                 int len;
1445                 printk(KERN_WARNING "aac_srb_callback: srb failed, status = %d\n", le32_to_cpu(srbreply->status));
1446                 len = (srbreply->sense_data_size > sizeof(scsicmd->sense_buffer))?
1447                                 sizeof(scsicmd->sense_buffer):srbreply->sense_data_size;
1448                 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1449                 memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
1450         }
1451
1452         /*
1453          * Next check the srb status
1454          */
1455         switch( (le32_to_cpu(srbreply->srb_status))&0x3f){
1456         case SRB_STATUS_ERROR_RECOVERY:
1457         case SRB_STATUS_PENDING:
1458         case SRB_STATUS_SUCCESS:
1459                 if(scsicmd->cmnd[0] == INQUIRY ){
1460                         u8 b;
1461                         u8 b1;
1462                         /* We can't expose disk devices because we can't tell whether they
1463                          * are the raw container drives or stand alone drives.  If they have
1464                          * the removable bit set then we should expose them though.
1465                          */
1466                         b = (*(u8*)scsicmd->buffer)&0x1f;
1467                         b1 = ((u8*)scsicmd->buffer)[1];
1468                         if( b==TYPE_TAPE || b==TYPE_WORM || b==TYPE_ROM || b==TYPE_MOD|| b==TYPE_MEDIUM_CHANGER
1469                                         || (b==TYPE_DISK && (b1&0x80)) ){
1470                                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
1471                         /*
1472                          * We will allow disk devices if in RAID/SCSI mode and
1473                          * the channel is 2
1474                          */
1475                         } else if ((dev->raid_scsi_mode) &&
1476                                         (scsicmd->device->channel == 2)) {
1477                                 scsicmd->result = DID_OK << 16 |
1478                                                 COMMAND_COMPLETE << 8;
1479                         } else {
1480                                 scsicmd->result = DID_NO_CONNECT << 16 |
1481                                                 COMMAND_COMPLETE << 8;
1482                         }
1483                 } else {
1484                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
1485                 }
1486                 break;
1487         case SRB_STATUS_DATA_OVERRUN:
1488                 switch(scsicmd->cmnd[0]){
1489                 case  READ_6:
1490                 case  WRITE_6:
1491                 case  READ_10:
1492                 case  WRITE_10:
1493                 case  READ_12:
1494                 case  WRITE_12:
1495                         if(le32_to_cpu(srbreply->data_xfer_length) < scsicmd->underflow ) {
1496                                 printk(KERN_WARNING"aacraid: SCSI CMD underflow\n");
1497                         } else {
1498                                 printk(KERN_WARNING"aacraid: SCSI CMD Data Overrun\n");
1499                         }
1500                         scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
1501                         break;
1502                 case INQUIRY: {
1503                         u8 b;
1504                         u8 b1;
1505                         /* We can't expose disk devices because we can't tell whether they
1506                         * are the raw container drives or stand alone drives
1507                         */
1508                         b = (*(u8*)scsicmd->buffer)&0x0f;
1509                         b1 = ((u8*)scsicmd->buffer)[1];
1510                         if( b==TYPE_TAPE || b==TYPE_WORM || b==TYPE_ROM || b==TYPE_MOD|| b==TYPE_MEDIUM_CHANGER
1511                                         || (b==TYPE_DISK && (b1&0x80)) ){
1512                                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
1513                         /*
1514                          * We will allow disk devices if in RAID/SCSI mode and
1515                          * the channel is 2
1516                          */
1517                         } else if ((dev->raid_scsi_mode) &&
1518                                         (scsicmd->device->channel == 2)) {
1519                                 scsicmd->result = DID_OK << 16 |
1520                                                 COMMAND_COMPLETE << 8;
1521                         } else {
1522                                 scsicmd->result = DID_NO_CONNECT << 16 |
1523                                                 COMMAND_COMPLETE << 8;
1524                         }
1525                         break;
1526                 }
1527                 default:
1528                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
1529                         break;
1530                 }
1531                 break;
1532         case SRB_STATUS_ABORTED:
1533                 scsicmd->result = DID_ABORT << 16 | ABORT << 8;
1534                 break;
1535         case SRB_STATUS_ABORT_FAILED:
1536                 // Not sure about this one - but assuming the hba was trying to abort for some reason
1537                 scsicmd->result = DID_ERROR << 16 | ABORT << 8;
1538                 break;
1539         case SRB_STATUS_PARITY_ERROR:
1540                 scsicmd->result = DID_PARITY << 16 | MSG_PARITY_ERROR << 8;
1541                 break;
1542         case SRB_STATUS_NO_DEVICE:
1543         case SRB_STATUS_INVALID_PATH_ID:
1544         case SRB_STATUS_INVALID_TARGET_ID:
1545         case SRB_STATUS_INVALID_LUN:
1546         case SRB_STATUS_SELECTION_TIMEOUT:
1547                 scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8;
1548                 break;
1549
1550         case SRB_STATUS_COMMAND_TIMEOUT:
1551         case SRB_STATUS_TIMEOUT:
1552                 scsicmd->result = DID_TIME_OUT << 16 | COMMAND_COMPLETE << 8;
1553                 break;
1554
1555         case SRB_STATUS_BUSY:
1556                 scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8;
1557                 break;
1558
1559         case SRB_STATUS_BUS_RESET:
1560                 scsicmd->result = DID_RESET << 16 | COMMAND_COMPLETE << 8;
1561                 break;
1562
1563         case SRB_STATUS_MESSAGE_REJECTED:
1564                 scsicmd->result = DID_ERROR << 16 | MESSAGE_REJECT << 8;
1565                 break;
1566         case SRB_STATUS_REQUEST_FLUSHED:
1567         case SRB_STATUS_ERROR:
1568         case SRB_STATUS_INVALID_REQUEST:
1569         case SRB_STATUS_REQUEST_SENSE_FAILED:
1570         case SRB_STATUS_NO_HBA:
1571         case SRB_STATUS_UNEXPECTED_BUS_FREE:
1572         case SRB_STATUS_PHASE_SEQUENCE_FAILURE:
1573         case SRB_STATUS_BAD_SRB_BLOCK_LENGTH:
1574         case SRB_STATUS_DELAYED_RETRY:
1575         case SRB_STATUS_BAD_FUNCTION:
1576         case SRB_STATUS_NOT_STARTED:
1577         case SRB_STATUS_NOT_IN_USE:
1578         case SRB_STATUS_FORCE_ABORT:
1579         case SRB_STATUS_DOMAIN_VALIDATION_FAIL:
1580         default:
1581 #ifdef AAC_DETAILED_STATUS_INFO
1582                 printk("aacraid: SRB ERROR(%u) %s scsi cmd 0x%x - scsi status 0x%x\n",
1583                         le32_to_cpu(srbreply->srb_status & 0x3F),
1584                         aac_get_status_string(
1585                                 le32_to_cpu(srbreply->srb_status) & 0x3F),
1586                         scsicmd->cmnd[0],
1587                         le32_to_cpu(srbreply->scsi_status));
1588 #endif
1589                 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
1590                 break;
1591         }
1592         if (le32_to_cpu(srbreply->scsi_status) == 0x02 ){  // Check Condition
1593                 int len;
1594                 scsicmd->result |= SAM_STAT_CHECK_CONDITION;
1595                 len = (srbreply->sense_data_size > sizeof(scsicmd->sense_buffer))?
1596                                 sizeof(scsicmd->sense_buffer):srbreply->sense_data_size;
1597 #ifdef AAC_DETAILED_STATUS_INFO
1598                 dprintk((KERN_WARNING "aac_srb_callback: check condition, status = %d len=%d\n",
1599                                         le32_to_cpu(srbreply->status), len));
1600 #endif
1601                 memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
1602
1603         }
1604         /*
1605          * OR in the scsi status (already shifted up a bit)
1606          */
1607         scsicmd->result |= le32_to_cpu(srbreply->scsi_status);
1608
1609         fib_complete(fibptr);
1610         fib_free(fibptr);
1611         aac_io_done(scsicmd);
1612 }
1613
1614 /**
1615  *
1616  * aac_send_scb_fib
1617  * @scsicmd: the scsi command block
1618  *
1619  * This routine will form a FIB and fill in the aac_srb from the
1620  * scsicmd passed in.
1621  */
1622
1623 static int aac_send_srb_fib(struct scsi_cmnd* scsicmd)
1624 {
1625         struct fib* cmd_fibcontext;
1626         struct aac_dev* dev;
1627         int status;
1628         struct aac_srb *srbcmd;
1629         u16 fibsize;
1630         u32 flag;
1631         u32 timeout;
1632
1633         if( scsicmd->device->id > 15 || scsicmd->device->lun > 7) {
1634                 scsicmd->result = DID_NO_CONNECT << 16;
1635                 scsicmd->scsi_done(scsicmd);
1636                 return 0;
1637         }
1638
1639         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1640         switch(scsicmd->sc_data_direction){
1641         case DMA_TO_DEVICE:
1642                 flag = SRB_DataOut;
1643                 break;
1644         case DMA_BIDIRECTIONAL:
1645                 flag = SRB_DataIn | SRB_DataOut;
1646                 break;
1647         case DMA_FROM_DEVICE:
1648                 flag = SRB_DataIn;
1649                 break;
1650         case DMA_NONE:
1651         default:        /* shuts up some versions of gcc */
1652                 flag = SRB_NoDataXfer;
1653                 break;
1654         }
1655
1656
1657         /*
1658          *      Allocate and initialize a Fib then setup a BlockWrite command
1659          */
1660         if (!(cmd_fibcontext = fib_alloc(dev))) {
1661                 return -1;
1662         }
1663         fib_init(cmd_fibcontext);
1664
1665         srbcmd = (struct aac_srb*) fib_data(cmd_fibcontext);
1666         srbcmd->function = cpu_to_le32(SRBF_ExecuteScsi);
1667         srbcmd->channel  = cpu_to_le32(aac_logical_to_phys(scsicmd->device->channel));
1668         srbcmd->id   = cpu_to_le32(scsicmd->device->id);
1669         srbcmd->lun      = cpu_to_le32(scsicmd->device->lun);
1670         srbcmd->flags    = cpu_to_le32(flag);
1671         timeout = (scsicmd->timeout-jiffies)/HZ;
1672         if(timeout == 0){
1673                 timeout = 1;
1674         }
1675         srbcmd->timeout  = cpu_to_le32(timeout);  // timeout in seconds
1676         srbcmd->retry_limit =cpu_to_le32(0); // Obsolete parameter
1677         srbcmd->cdb_size = cpu_to_le32(scsicmd->cmd_len);
1678
1679         if( dev->dac_support == 1 ) {
1680                 aac_build_sg64(scsicmd, (struct sgmap64*) &srbcmd->sg);
1681                 srbcmd->count = cpu_to_le32(scsicmd->request_bufflen);
1682
1683                 memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
1684                 memcpy(srbcmd->cdb, scsicmd->cmnd, scsicmd->cmd_len);
1685                 /*
1686                  *      Build Scatter/Gather list
1687                  */
1688                 fibsize = sizeof (struct aac_srb) + (((srbcmd->sg.count & 0xff) - 1) * sizeof (struct sgentry64));
1689
1690                 /*
1691                  *      Now send the Fib to the adapter
1692                  */
1693                 status = fib_send(ScsiPortCommand64, cmd_fibcontext, fibsize, FsaNormal, 0, 1,
1694                                   (fib_callback) aac_srb_callback, (void *) scsicmd);
1695         } else {
1696                 aac_build_sg(scsicmd, (struct sgmap*)&srbcmd->sg);
1697                 srbcmd->count = cpu_to_le32(scsicmd->request_bufflen);
1698
1699                 memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
1700                 memcpy(srbcmd->cdb, scsicmd->cmnd, scsicmd->cmd_len);
1701                 /*
1702                  *      Build Scatter/Gather list
1703                  */
1704                 fibsize = sizeof (struct aac_srb) + (((srbcmd->sg.count & 0xff) - 1) * sizeof (struct sgentry));
1705
1706                 /*
1707                  *      Now send the Fib to the adapter
1708                  */
1709                 status = fib_send(ScsiPortCommand, cmd_fibcontext, fibsize, FsaNormal, 0, 1,
1710                                   (fib_callback) aac_srb_callback, (void *) scsicmd);
1711         }
1712         /*
1713          *      Check that the command queued to the controller
1714          */
1715         if (status == -EINPROGRESS){
1716                 return 0;
1717         }
1718
1719         printk(KERN_WARNING "aac_srb: fib_send failed with status: %d\n", status);
1720         fib_complete(cmd_fibcontext);
1721         fib_free(cmd_fibcontext);
1722
1723         return -1;
1724 }
1725
1726 static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* psg)
1727 {
1728         struct aac_dev *dev;
1729         unsigned long byte_count = 0;
1730
1731         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1732         // Get rid of old data
1733         psg->count = cpu_to_le32(0);
1734         psg->sg[0].addr = cpu_to_le32(0);
1735         psg->sg[0].count = cpu_to_le32(0);
1736         if (scsicmd->use_sg) {
1737                 struct scatterlist *sg;
1738                 int i;
1739                 int sg_count;
1740                 sg = (struct scatterlist *) scsicmd->request_buffer;
1741
1742                 sg_count = pci_map_sg(dev->pdev, sg, scsicmd->use_sg,
1743                         scsicmd->sc_data_direction);
1744                 psg->count = cpu_to_le32(sg_count);
1745
1746                 byte_count = 0;
1747
1748                 for (i = 0; i < sg_count; i++) {
1749                         psg->sg[i].addr = cpu_to_le32(sg_dma_address(sg));
1750                         psg->sg[i].count = cpu_to_le32(sg_dma_len(sg));
1751                         byte_count += sg_dma_len(sg);
1752                         sg++;
1753                 }
1754                 /* hba wants the size to be exact */
1755                 if(byte_count > scsicmd->request_bufflen){
1756                         psg->sg[i-1].count -= (byte_count - scsicmd->request_bufflen);
1757                         byte_count = scsicmd->request_bufflen;
1758                 }
1759                 /* Check for command underflow */
1760                 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
1761                         printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
1762                                         byte_count, scsicmd->underflow);
1763                 }
1764         }
1765         else if(scsicmd->request_bufflen) {
1766                 dma_addr_t addr;
1767                 addr = pci_map_single(dev->pdev,
1768                                 scsicmd->request_buffer,
1769                                 scsicmd->request_bufflen,
1770                                 scsicmd->sc_data_direction);
1771                 psg->count = cpu_to_le32(1);
1772                 psg->sg[0].addr = cpu_to_le32(addr);
1773                 psg->sg[0].count = cpu_to_le32(scsicmd->request_bufflen);
1774                 scsicmd->SCp.dma_handle = addr;
1775                 byte_count = scsicmd->request_bufflen;
1776         }
1777         return byte_count;
1778 }
1779
1780
1781 static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* psg)
1782 {
1783         struct aac_dev *dev;
1784         unsigned long byte_count = 0;
1785         u64 le_addr;
1786
1787         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1788         // Get rid of old data
1789         psg->count = cpu_to_le32(0);
1790         psg->sg[0].addr[0] = cpu_to_le32(0);
1791         psg->sg[0].addr[1] = cpu_to_le32(0);
1792         psg->sg[0].count = cpu_to_le32(0);
1793         if (scsicmd->use_sg) {
1794                 struct scatterlist *sg;
1795                 int i;
1796                 int sg_count;
1797                 sg = (struct scatterlist *) scsicmd->request_buffer;
1798
1799                 sg_count = pci_map_sg(dev->pdev, sg, scsicmd->use_sg,
1800                         scsicmd->sc_data_direction);
1801                 psg->count = cpu_to_le32(sg_count);
1802
1803                 byte_count = 0;
1804
1805                 for (i = 0; i < sg_count; i++) {
1806                         le_addr = cpu_to_le64(sg_dma_address(sg));
1807                         psg->sg[i].addr[1] = (u32)(le_addr>>32);
1808                         psg->sg[i].addr[0] = (u32)(le_addr & 0xffffffff);
1809                         psg->sg[i].count = cpu_to_le32(sg_dma_len(sg));
1810                         byte_count += sg_dma_len(sg);
1811                         sg++;
1812                 }
1813                 /* hba wants the size to be exact */
1814                 if(byte_count > scsicmd->request_bufflen){
1815                         psg->sg[i-1].count -= (byte_count - scsicmd->request_bufflen);
1816                         byte_count = scsicmd->request_bufflen;
1817                 }
1818                 /* Check for command underflow */
1819                 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
1820                         printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
1821                                         byte_count, scsicmd->underflow);
1822                 }
1823         }
1824         else if(scsicmd->request_bufflen) {
1825                 dma_addr_t addr;
1826                 addr = pci_map_single(dev->pdev,
1827                                 scsicmd->request_buffer,
1828                                 scsicmd->request_bufflen,
1829                                 scsicmd->sc_data_direction);
1830                 psg->count = cpu_to_le32(1);
1831                 le_addr = cpu_to_le64(addr);
1832                 psg->sg[0].addr[1] = (u32)(le_addr>>32);
1833                 psg->sg[0].addr[0] = (u32)(le_addr & 0xffffffff);
1834                 psg->sg[0].count = cpu_to_le32(scsicmd->request_bufflen);
1835                 scsicmd->SCp.dma_handle = addr;
1836                 byte_count = scsicmd->request_bufflen;
1837         }
1838         return byte_count;
1839 }
1840
1841 #ifdef AAC_DETAILED_STATUS_INFO
1842
1843 struct aac_srb_status_info {
1844         u32     status;
1845         char    *str;
1846 };
1847
1848
1849 static struct aac_srb_status_info srb_status_info[] = {
1850         { SRB_STATUS_PENDING,           "Pending Status"},
1851         { SRB_STATUS_SUCCESS,           "Success"},
1852         { SRB_STATUS_ABORTED,           "Aborted Command"},
1853         { SRB_STATUS_ABORT_FAILED,      "Abort Failed"},
1854         { SRB_STATUS_ERROR,             "Error Event"},
1855         { SRB_STATUS_BUSY,              "Device Busy"},
1856         { SRB_STATUS_INVALID_REQUEST,   "Invalid Request"},
1857         { SRB_STATUS_INVALID_PATH_ID,   "Invalid Path ID"},
1858         { SRB_STATUS_NO_DEVICE,         "No Device"},
1859         { SRB_STATUS_TIMEOUT,           "Timeout"},
1860         { SRB_STATUS_SELECTION_TIMEOUT, "Selection Timeout"},
1861         { SRB_STATUS_COMMAND_TIMEOUT,   "Command Timeout"},
1862         { SRB_STATUS_MESSAGE_REJECTED,  "Message Rejected"},
1863         { SRB_STATUS_BUS_RESET,         "Bus Reset"},
1864         { SRB_STATUS_PARITY_ERROR,      "Parity Error"},
1865         { SRB_STATUS_REQUEST_SENSE_FAILED,"Request Sense Failed"},
1866         { SRB_STATUS_NO_HBA,            "No HBA"},
1867         { SRB_STATUS_DATA_OVERRUN,      "Data Overrun/Data Underrun"},
1868         { SRB_STATUS_UNEXPECTED_BUS_FREE,"Unexpected Bus Free"},
1869         { SRB_STATUS_PHASE_SEQUENCE_FAILURE,"Phase Error"},
1870         { SRB_STATUS_BAD_SRB_BLOCK_LENGTH,"Bad Srb Block Length"},
1871         { SRB_STATUS_REQUEST_FLUSHED,   "Request Flushed"},
1872         { SRB_STATUS_DELAYED_RETRY,     "Delayed Retry"},
1873         { SRB_STATUS_INVALID_LUN,       "Invalid LUN"},
1874         { SRB_STATUS_INVALID_TARGET_ID, "Invalid TARGET ID"},
1875         { SRB_STATUS_BAD_FUNCTION,      "Bad Function"},
1876         { SRB_STATUS_ERROR_RECOVERY,    "Error Recovery"},
1877         { SRB_STATUS_NOT_STARTED,       "Not Started"},
1878         { SRB_STATUS_NOT_IN_USE,        "Not In Use"},
1879         { SRB_STATUS_FORCE_ABORT,       "Force Abort"},
1880         { SRB_STATUS_DOMAIN_VALIDATION_FAIL,"Domain Validation Failure"},
1881         { 0xff,                         "Unknown Error"}
1882 };
1883
1884 char *aac_get_status_string(u32 status)
1885 {
1886         int i;
1887
1888         for(i=0; i < (sizeof(srb_status_info)/sizeof(struct aac_srb_status_info)); i++ ){
1889                 if(srb_status_info[i].status == status){
1890                         return srb_status_info[i].str;
1891                 }
1892         }
1893
1894         return "Bad Status Code";
1895 }
1896
1897 #endif