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 static int nondasd = -1;
 150 static int dacmode = -1;
 151
 152 static int commit = -1;
 153
 154 module_param(nondasd, int, 0);
 155 MODULE_PARM_DESC(nondasd, "Control scanning of hba for nondasd devices. 0=off, 1=on");
 156 module_param(dacmode, int, 0);
 157 MODULE_PARM_DESC(dacmode, "Control whether dma addressing is using 64 bit DAC. 0=off, 1=on");
 158 module_param(commit, int, 0);
 159 MODULE_PARM_DESC(commit, "Control whether a COMMIT_CONFIG is issued to the adapter for foreign arrays.\nThis is typically needed in systems that do not have a BIOS. 0=off, 1=on");
 160
 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 static void synchronize_callback(void *context, struct fib *fibptr)
1033 {
1034         struct aac_synchronize_reply *synchronizereply;
1035         struct scsi_cmnd *cmd;
1036
1037         cmd = context;
1038
1039         dprintk((KERN_DEBUG "synchronize_callback[cpu %d]: t = %ld.\n",
1040                                 smp_processor_id(), jiffies));
1041         BUG_ON(fibptr == NULL);
1042
1043
1044         synchronizereply = fib_data(fibptr);
1045         if (le32_to_cpu(synchronizereply->status) == CT_OK)
1046                 cmd->result = DID_OK << 16 |
1047                         COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1048         else {
1049                 struct scsi_device *sdev = cmd->device;
1050                 struct aac_dev *dev = (struct aac_dev *)sdev->host->hostdata;
1051                 u32 cid = ID_LUN_TO_CONTAINER(sdev->id, sdev->lun);
1052                 printk(KERN_WARNING
1053                      "synchronize_callback: synchronize failed, status = %d\n",
1054                      synchronizereply->status);
1055                 cmd->result = DID_OK << 16 |
1056                         COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1057                 set_sense((u8 *)&dev->fsa_dev[cid].sense_data,
1058                                     HARDWARE_ERROR,
1059                                     SENCODE_INTERNAL_TARGET_FAILURE,
1060                                     ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
1061                                     0, 0);
1062                 memcpy(cmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1063                   min(sizeof(dev->fsa_dev[cid].sense_data),
1064                           sizeof(cmd->sense_buffer)));
1065         }
1066
1067         fib_complete(fibptr);
1068         fib_free(fibptr);
1069         aac_io_done(cmd);
1070 }
1071
1072 static int aac_synchronize(struct scsi_cmnd *scsicmd, int cid)
1073 {
1074         int status;
1075         struct fib *cmd_fibcontext;
1076         struct aac_synchronize *synchronizecmd;
1077         struct scsi_cmnd *cmd;
1078         struct scsi_device *sdev = scsicmd->device;
1079         int active = 0;
1080         unsigned long flags;
1081
1082         /*
1083          * Wait for all commands to complete to this specific
1084          * target (block).
1085          */
1086         spin_lock_irqsave(&sdev->list_lock, flags);
1087         list_for_each_entry(cmd, &sdev->cmd_list, list)
1088                 if (cmd != scsicmd && cmd->serial_number != 0) {
1089                         ++active;
1090                         break;
1091                 }
1092
1093         spin_unlock_irqrestore(&sdev->list_lock, flags);
1094
1095         /*
1096          *      Yield the processor (requeue for later)
1097          */
1098         if (active)
1099                 return SCSI_MLQUEUE_DEVICE_BUSY;
1100
1101         /*
1102          *      Alocate and initialize a Fib
1103          */
1104         if (!(cmd_fibcontext =
1105             fib_alloc((struct aac_dev *)scsicmd->device->host->hostdata)))
1106                 return SCSI_MLQUEUE_HOST_BUSY;
1107
1108         fib_init(cmd_fibcontext);
1109
1110         synchronizecmd = fib_data(cmd_fibcontext);
1111         synchronizecmd->command = cpu_to_le32(VM_ContainerConfig);
1112         synchronizecmd->type = cpu_to_le32(CT_FLUSH_CACHE);
1113         synchronizecmd->cid = cpu_to_le32(cid);
1114         synchronizecmd->count =
1115              cpu_to_le32(sizeof(((struct aac_synchronize_reply *)NULL)->data));
1116
1117         /*
1118          *      Now send the Fib to the adapter
1119          */
1120         status = fib_send(ContainerCommand,
1121                   cmd_fibcontext,
1122                   sizeof(struct aac_synchronize),
1123                   FsaNormal,
1124                   0, 1,
1125                   (fib_callback)synchronize_callback,
1126                   (void *)scsicmd);
1127
1128         /*
1129          *      Check that the command queued to the controller
1130          */
1131         if (status == -EINPROGRESS)
1132                 return 0;
1133
1134         printk(KERN_WARNING
1135                 "aac_synchronize: fib_send failed with status: %d.\n", status);
1136         fib_complete(cmd_fibcontext);
1137         fib_free(cmd_fibcontext);
1138         return SCSI_MLQUEUE_HOST_BUSY;
1139 }
1140
1141 /**
1142  *      aac_scsi_cmd()          -       Process SCSI command
1143  *      @scsicmd:               SCSI command block
1144  *
1145  *      Emulate a SCSI command and queue the required request for the
1146  *      aacraid firmware.
1147  */
1148
1149 int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
1150 {
1151         u32 cid = 0;
1152         struct Scsi_Host *host = scsicmd->device->host;
1153         struct aac_dev *dev = (struct aac_dev *)host->hostdata;
1154         struct fsa_dev_info *fsa_dev_ptr = dev->fsa_dev;
1155         int cardtype = dev->cardtype;
1156         int ret;
1157
1158         /*
1159          *      If the bus, id or lun is out of range, return fail
1160          *      Test does not apply to ID 16, the pseudo id for the controller
1161          *      itself.
1162          */
1163         if (scsicmd->device->id != host->this_id) {
1164                 if ((scsicmd->device->channel == 0) ){
1165                         if( (scsicmd->device->id >= dev->maximum_num_containers) || (scsicmd->device->lun != 0)){
1166                                 scsicmd->result = DID_NO_CONNECT << 16;
1167                                 scsicmd->scsi_done(scsicmd);
1168                                 return 0;
1169                         }
1170                         cid = ID_LUN_TO_CONTAINER(scsicmd->device->id, scsicmd->device->lun);
1171
1172                         /*
1173                          *      If the target container doesn't exist, it may have
1174                          *      been newly created
1175                          */
1176                         if ((fsa_dev_ptr[cid].valid & 1) == 0) {
1177                                 switch (scsicmd->cmnd[0]) {
1178                                 case INQUIRY:
1179                                 case READ_CAPACITY:
1180                                 case TEST_UNIT_READY:
1181                                         spin_unlock_irq(host->host_lock);
1182                                         probe_container(dev, cid);
1183                                         spin_lock_irq(host->host_lock);
1184                                         if (fsa_dev_ptr[cid].valid == 0) {
1185                                                 scsicmd->result = DID_NO_CONNECT << 16;
1186                                                 scsicmd->scsi_done(scsicmd);
1187                                                 return 0;
1188                                         }
1189                                 default:
1190                                         break;
1191                                 }
1192                         }
1193                         /*
1194                          *      If the target container still doesn't exist,
1195                          *      return failure
1196                          */
1197                         if (fsa_dev_ptr[cid].valid == 0) {
1198                                 scsicmd->result = DID_BAD_TARGET << 16;
1199                                 scsicmd->scsi_done(scsicmd);
1200                                 return 0;
1201                         }
1202                 } else {  /* check for physical non-dasd devices */
1203                         if(dev->nondasd_support == 1){
1204                                 return aac_send_srb_fib(scsicmd);
1205                         } else {
1206                                 scsicmd->result = DID_NO_CONNECT << 16;
1207                                 scsicmd->scsi_done(scsicmd);
1208                                 return 0;
1209                         }
1210                 }
1211         }
1212         /*
1213          * else Command for the controller itself
1214          */
1215         else if ((scsicmd->cmnd[0] != INQUIRY) &&       /* only INQUIRY & TUR cmnd supported for controller */
1216                 (scsicmd->cmnd[0] != TEST_UNIT_READY))
1217         {
1218                 dprintk((KERN_WARNING "Only INQUIRY & TUR command supported for controller, rcvd = 0x%x.\n", scsicmd->cmnd[0]));
1219                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1220                 set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
1221                             ILLEGAL_REQUEST,
1222                             SENCODE_INVALID_COMMAND,
1223                             ASENCODE_INVALID_COMMAND, 0, 0, 0, 0);
1224                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1225                   (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
1226                     ? sizeof(scsicmd->sense_buffer)
1227                     : sizeof(dev->fsa_dev[cid].sense_data));
1228                 scsicmd->scsi_done(scsicmd);
1229                 return 0;
1230         }
1231
1232
1233         /* Handle commands here that don't really require going out to the adapter */
1234         switch (scsicmd->cmnd[0]) {
1235         case INQUIRY:
1236         {
1237                 struct inquiry_data *inq_data_ptr;
1238
1239                 dprintk((KERN_DEBUG "INQUIRY command, ID: %d.\n", scsicmd->device->id));
1240                 inq_data_ptr = (struct inquiry_data *)scsicmd->request_buffer;
1241                 memset(inq_data_ptr, 0, sizeof (struct inquiry_data));
1242
1243                 inq_data_ptr->inqd_ver = 2;     /* claim compliance to SCSI-2 */
1244                 inq_data_ptr->inqd_dtq = 0x80;  /* set RMB bit to one indicating that the medium is removable */
1245                 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 */
1246                 inq_data_ptr->inqd_len = 31;
1247                 /*Format for "pad2" is  RelAdr | WBus32 | WBus16 |  Sync  | Linked |Reserved| CmdQue | SftRe */
1248                 inq_data_ptr->inqd_pad2= 0x32 ;  /*WBus16|Sync|CmdQue */
1249                 /*
1250                  *      Set the Vendor, Product, and Revision Level
1251                  *      see: <vendor>.c i.e. aac.c
1252                  */
1253                 if (scsicmd->device->id == host->this_id) {
1254                         setinqstr(cardtype, (void *) (inq_data_ptr->inqd_vid), (sizeof(container_types)/sizeof(char *)));
1255                         inq_data_ptr->inqd_pdt = INQD_PDT_PROC; /* Processor device */
1256                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1257                         scsicmd->scsi_done(scsicmd);
1258                         return 0;
1259                 }
1260                 setinqstr(cardtype, (void *) (inq_data_ptr->inqd_vid), fsa_dev_ptr[cid].type);
1261                 inq_data_ptr->inqd_pdt = INQD_PDT_DA;   /* Direct/random access device */
1262                 return aac_get_container_name(scsicmd, cid);
1263         }
1264         case READ_CAPACITY:
1265         {
1266                 u32 capacity;
1267                 char *cp;
1268
1269                 dprintk((KERN_DEBUG "READ CAPACITY command.\n"));
1270                 if (fsa_dev_ptr[cid].size <= 0x100000000LL)
1271                         capacity = fsa_dev_ptr[cid].size - 1;
1272                 else
1273                         capacity = (u32)-1;
1274                 cp = scsicmd->request_buffer;
1275                 cp[0] = (capacity >> 24) & 0xff;
1276                 cp[1] = (capacity >> 16) & 0xff;
1277                 cp[2] = (capacity >> 8) & 0xff;
1278                 cp[3] = (capacity >> 0) & 0xff;
1279                 cp[4] = 0;
1280                 cp[5] = 0;
1281                 cp[6] = 2;
1282                 cp[7] = 0;
1283
1284                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1285                 scsicmd->scsi_done(scsicmd);
1286
1287                 return 0;
1288         }
1289
1290         case MODE_SENSE:
1291         {
1292                 char *mode_buf;
1293
1294                 dprintk((KERN_DEBUG "MODE SENSE command.\n"));
1295                 mode_buf = scsicmd->request_buffer;
1296                 mode_buf[0] = 3;        /* Mode data length */
1297                 mode_buf[1] = 0;        /* Medium type - default */
1298                 mode_buf[2] = 0;        /* Device-specific param, bit 8: 0/1 = write enabled/protected */
1299                 mode_buf[3] = 0;        /* Block descriptor length */
1300
1301                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1302                 scsicmd->scsi_done(scsicmd);
1303
1304                 return 0;
1305         }
1306         case MODE_SENSE_10:
1307         {
1308                 char *mode_buf;
1309
1310                 dprintk((KERN_DEBUG "MODE SENSE 10 byte command.\n"));
1311                 mode_buf = scsicmd->request_buffer;
1312                 mode_buf[0] = 0;        /* Mode data length (MSB) */
1313                 mode_buf[1] = 6;        /* Mode data length (LSB) */
1314                 mode_buf[2] = 0;        /* Medium type - default */
1315                 mode_buf[3] = 0;        /* Device-specific param, bit 8: 0/1 = write enabled/protected */
1316                 mode_buf[4] = 0;        /* reserved */
1317                 mode_buf[5] = 0;        /* reserved */
1318                 mode_buf[6] = 0;        /* Block descriptor length (MSB) */
1319                 mode_buf[7] = 0;        /* Block descriptor length (LSB) */
1320
1321                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1322                 scsicmd->scsi_done(scsicmd);
1323
1324                 return 0;
1325         }
1326         case REQUEST_SENSE:
1327                 dprintk((KERN_DEBUG "REQUEST SENSE command.\n"));
1328                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data, sizeof (struct sense_data));
1329                 memset(&dev->fsa_dev[cid].sense_data, 0, sizeof (struct sense_data));
1330                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1331                 scsicmd->scsi_done(scsicmd);
1332                 return 0;
1333
1334         case ALLOW_MEDIUM_REMOVAL:
1335                 dprintk((KERN_DEBUG "LOCK command.\n"));
1336                 if (scsicmd->cmnd[4])
1337                         fsa_dev_ptr[cid].locked = 1;
1338                 else
1339                         fsa_dev_ptr[cid].locked = 0;
1340
1341                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1342                 scsicmd->scsi_done(scsicmd);
1343                 return 0;
1344         /*
1345          *      These commands are all No-Ops
1346          */
1347         case TEST_UNIT_READY:
1348         case RESERVE:
1349         case RELEASE:
1350         case REZERO_UNIT:
1351         case REASSIGN_BLOCKS:
1352         case SEEK_10:
1353         case START_STOP:
1354                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1355                 scsicmd->scsi_done(scsicmd);
1356                 return 0;
1357         }
1358
1359         switch (scsicmd->cmnd[0])
1360         {
1361                 case READ_6:
1362                 case READ_10:
1363                         /*
1364                          *      Hack to keep track of ordinal number of the device that
1365                          *      corresponds to a container. Needed to convert
1366                          *      containers to /dev/sd device names
1367                          */
1368
1369                         spin_unlock_irq(host->host_lock);
1370                         if  (scsicmd->request->rq_disk)
1371                                 memcpy(fsa_dev_ptr[cid].devname,
1372                                         scsicmd->request->rq_disk->disk_name,
1373                                         8);
1374
1375                         ret = aac_read(scsicmd, cid);
1376                         spin_lock_irq(host->host_lock);
1377                         return ret;
1378
1379                 case WRITE_6:
1380                 case WRITE_10:
1381                         spin_unlock_irq(host->host_lock);
1382                         ret = aac_write(scsicmd, cid);
1383                         spin_lock_irq(host->host_lock);
1384                         return ret;
1385
1386                 case SYNCHRONIZE_CACHE:
1387                         /* Issue FIB to tell Firmware to flush it's cache */
1388                         return aac_synchronize(scsicmd, cid);
1389
1390                 default:
1391                         /*
1392                          *      Unhandled commands
1393                          */
1394                         printk(KERN_WARNING "Unhandled SCSI Command: 0x%x.\n", scsicmd->cmnd[0]);
1395                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1396                         set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
1397                                 ILLEGAL_REQUEST, SENCODE_INVALID_COMMAND,
1398                                 ASENCODE_INVALID_COMMAND, 0, 0, 0, 0);
1399                         memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1400                           (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
1401                             ? sizeof(scsicmd->sense_buffer)
1402                             : sizeof(dev->fsa_dev[cid].sense_data));
1403                         scsicmd->scsi_done(scsicmd);
1404                         return 0;
1405         }
1406 }
1407
1408 static int query_disk(struct aac_dev *dev, void __user *arg)
1409 {
1410         struct aac_query_disk qd;
1411         struct fsa_dev_info *fsa_dev_ptr;
1412
1413         fsa_dev_ptr = dev->fsa_dev;
1414         if (copy_from_user(&qd, arg, sizeof (struct aac_query_disk)))
1415                 return -EFAULT;
1416         if (qd.cnum == -1)
1417                 qd.cnum = ID_LUN_TO_CONTAINER(qd.id, qd.lun);
1418         else if ((qd.bus == -1) && (qd.id == -1) && (qd.lun == -1))
1419         {
1420                 if (qd.cnum < 0 || qd.cnum >= dev->maximum_num_containers)
1421                         return -EINVAL;
1422                 qd.instance = dev->scsi_host_ptr->host_no;
1423                 qd.bus = 0;
1424                 qd.id = CONTAINER_TO_ID(qd.cnum);
1425                 qd.lun = CONTAINER_TO_LUN(qd.cnum);
1426         }
1427         else return -EINVAL;
1428
1429         qd.valid = fsa_dev_ptr[qd.cnum].valid;
1430         qd.locked = fsa_dev_ptr[qd.cnum].locked;
1431         qd.deleted = fsa_dev_ptr[qd.cnum].deleted;
1432
1433         if (fsa_dev_ptr[qd.cnum].devname[0] == '\0')
1434                 qd.unmapped = 1;
1435         else
1436                 qd.unmapped = 0;
1437
1438         strlcpy(qd.name, fsa_dev_ptr[qd.cnum].devname,
1439           min(sizeof(qd.name), sizeof(fsa_dev_ptr[qd.cnum].devname) + 1));
1440
1441         if (copy_to_user(arg, &qd, sizeof (struct aac_query_disk)))
1442                 return -EFAULT;
1443         return 0;
1444 }
1445
1446 static int force_delete_disk(struct aac_dev *dev, void __user *arg)
1447 {
1448         struct aac_delete_disk dd;
1449         struct fsa_dev_info *fsa_dev_ptr;
1450
1451         fsa_dev_ptr = dev->fsa_dev;
1452
1453         if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
1454                 return -EFAULT;
1455
1456         if (dd.cnum >= dev->maximum_num_containers)
1457                 return -EINVAL;
1458         /*
1459          *      Mark this container as being deleted.
1460          */
1461         fsa_dev_ptr[dd.cnum].deleted = 1;
1462         /*
1463          *      Mark the container as no longer valid
1464          */
1465         fsa_dev_ptr[dd.cnum].valid = 0;
1466         return 0;
1467 }
1468
1469 static int delete_disk(struct aac_dev *dev, void __user *arg)
1470 {
1471         struct aac_delete_disk dd;
1472         struct fsa_dev_info *fsa_dev_ptr;
1473
1474         fsa_dev_ptr = dev->fsa_dev;
1475
1476         if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
1477                 return -EFAULT;
1478
1479         if (dd.cnum >= dev->maximum_num_containers)
1480                 return -EINVAL;
1481         /*
1482          *      If the container is locked, it can not be deleted by the API.
1483          */
1484         if (fsa_dev_ptr[dd.cnum].locked)
1485                 return -EBUSY;
1486         else {
1487                 /*
1488                  *      Mark the container as no longer being valid.
1489                  */
1490                 fsa_dev_ptr[dd.cnum].valid = 0;
1491                 fsa_dev_ptr[dd.cnum].devname[0] = '\0';
1492                 return 0;
1493         }
1494 }
1495
1496 int aac_dev_ioctl(struct aac_dev *dev, int cmd, void __user *arg)
1497 {
1498         switch (cmd) {
1499         case FSACTL_QUERY_DISK:
1500                 return query_disk(dev, arg);
1501         case FSACTL_DELETE_DISK:
1502                 return delete_disk(dev, arg);
1503         case FSACTL_FORCE_DELETE_DISK:
1504                 return force_delete_disk(dev, arg);
1505         case FSACTL_GET_CONTAINERS:
1506                 return aac_get_containers(dev);
1507         default:
1508                 return -ENOTTY;
1509         }
1510 }
1511
1512 /**
1513  *
1514  * aac_srb_callback
1515  * @context: the context set in the fib - here it is scsi cmd
1516  * @fibptr: pointer to the fib
1517  *
1518  * Handles the completion of a scsi command to a non dasd device
1519  *
1520  */
1521
1522 static void aac_srb_callback(void *context, struct fib * fibptr)
1523 {
1524         struct aac_dev *dev;
1525         struct aac_srb_reply *srbreply;
1526         struct scsi_cmnd *scsicmd;
1527
1528         scsicmd = (struct scsi_cmnd *) context;
1529         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1530
1531         if (fibptr == NULL)
1532                 BUG();
1533
1534         srbreply = (struct aac_srb_reply *) fib_data(fibptr);
1535
1536         scsicmd->sense_buffer[0] = '\0';  /* Initialize sense valid flag to false */
1537         /*
1538          *      Calculate resid for sg
1539          */
1540
1541         scsicmd->resid = scsicmd->request_bufflen - srbreply->data_xfer_length;
1542
1543         if(scsicmd->use_sg)
1544                 pci_unmap_sg(dev->pdev,
1545                         (struct scatterlist *)scsicmd->buffer,
1546                         scsicmd->use_sg,
1547                         scsicmd->sc_data_direction);
1548         else if(scsicmd->request_bufflen)
1549                 pci_unmap_single(dev->pdev, scsicmd->SCp.dma_handle, scsicmd->request_bufflen,
1550                         scsicmd->sc_data_direction);
1551
1552         /*
1553          * First check the fib status
1554          */
1555
1556         if (le32_to_cpu(srbreply->status) != ST_OK){
1557                 int len;
1558                 printk(KERN_WARNING "aac_srb_callback: srb failed, status = %d\n", le32_to_cpu(srbreply->status));
1559                 len = (srbreply->sense_data_size > sizeof(scsicmd->sense_buffer))?
1560                                 sizeof(scsicmd->sense_buffer):srbreply->sense_data_size;
1561                 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1562                 memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
1563         }
1564
1565         /*
1566          * Next check the srb status
1567          */
1568         switch( (le32_to_cpu(srbreply->srb_status))&0x3f){
1569         case SRB_STATUS_ERROR_RECOVERY:
1570         case SRB_STATUS_PENDING:
1571         case SRB_STATUS_SUCCESS:
1572                 if(scsicmd->cmnd[0] == INQUIRY ){
1573                         u8 b;
1574                         u8 b1;
1575                         /* We can't expose disk devices because we can't tell whether they
1576                          * are the raw container drives or stand alone drives.  If they have
1577                          * the removable bit set then we should expose them though.
1578                          */
1579                         b = (*(u8*)scsicmd->buffer)&0x1f;
1580                         b1 = ((u8*)scsicmd->buffer)[1];
1581                         if( b==TYPE_TAPE || b==TYPE_WORM || b==TYPE_ROM || b==TYPE_MOD|| b==TYPE_MEDIUM_CHANGER
1582                                         || (b==TYPE_DISK && (b1&0x80)) ){
1583                                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
1584                         /*
1585                          * We will allow disk devices if in RAID/SCSI mode and
1586                          * the channel is 2
1587                          */
1588                         } else if ((dev->raid_scsi_mode) &&
1589                                         (scsicmd->device->channel == 2)) {
1590                                 scsicmd->result = DID_OK << 16 |
1591                                                 COMMAND_COMPLETE << 8;
1592                         } else {
1593                                 scsicmd->result = DID_NO_CONNECT << 16 |
1594                                                 COMMAND_COMPLETE << 8;
1595                         }
1596                 } else {
1597                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
1598                 }
1599                 break;
1600         case SRB_STATUS_DATA_OVERRUN:
1601                 switch(scsicmd->cmnd[0]){
1602                 case  READ_6:
1603                 case  WRITE_6:
1604                 case  READ_10:
1605                 case  WRITE_10:
1606                 case  READ_12:
1607                 case  WRITE_12:
1608                         if(le32_to_cpu(srbreply->data_xfer_length) < scsicmd->underflow ) {
1609                                 printk(KERN_WARNING"aacraid: SCSI CMD underflow\n");
1610                         } else {
1611                                 printk(KERN_WARNING"aacraid: SCSI CMD Data Overrun\n");
1612                         }
1613                         scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
1614                         break;
1615                 case INQUIRY: {
1616                         u8 b;
1617                         u8 b1;
1618                         /* We can't expose disk devices because we can't tell whether they
1619                         * are the raw container drives or stand alone drives
1620                         */
1621                         b = (*(u8*)scsicmd->buffer)&0x0f;
1622                         b1 = ((u8*)scsicmd->buffer)[1];
1623                         if( b==TYPE_TAPE || b==TYPE_WORM || b==TYPE_ROM || b==TYPE_MOD|| b==TYPE_MEDIUM_CHANGER
1624                                         || (b==TYPE_DISK && (b1&0x80)) ){
1625                                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
1626                         /*
1627                          * We will allow disk devices if in RAID/SCSI mode and
1628                          * the channel is 2
1629                          */
1630                         } else if ((dev->raid_scsi_mode) &&
1631                                         (scsicmd->device->channel == 2)) {
1632                                 scsicmd->result = DID_OK << 16 |
1633                                                 COMMAND_COMPLETE << 8;
1634                         } else {
1635                                 scsicmd->result = DID_NO_CONNECT << 16 |
1636                                                 COMMAND_COMPLETE << 8;
1637                         }
1638                         break;
1639                 }
1640                 default:
1641                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
1642                         break;
1643                 }
1644                 break;
1645         case SRB_STATUS_ABORTED:
1646                 scsicmd->result = DID_ABORT << 16 | ABORT << 8;
1647                 break;
1648         case SRB_STATUS_ABORT_FAILED:
1649                 // Not sure about this one - but assuming the hba was trying to abort for some reason
1650                 scsicmd->result = DID_ERROR << 16 | ABORT << 8;
1651                 break;
1652         case SRB_STATUS_PARITY_ERROR:
1653                 scsicmd->result = DID_PARITY << 16 | MSG_PARITY_ERROR << 8;
1654                 break;
1655         case SRB_STATUS_NO_DEVICE:
1656         case SRB_STATUS_INVALID_PATH_ID:
1657         case SRB_STATUS_INVALID_TARGET_ID:
1658         case SRB_STATUS_INVALID_LUN:
1659         case SRB_STATUS_SELECTION_TIMEOUT:
1660                 scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8;
1661                 break;
1662
1663         case SRB_STATUS_COMMAND_TIMEOUT:
1664         case SRB_STATUS_TIMEOUT:
1665                 scsicmd->result = DID_TIME_OUT << 16 | COMMAND_COMPLETE << 8;
1666                 break;
1667
1668         case SRB_STATUS_BUSY:
1669                 scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8;
1670                 break;
1671
1672         case SRB_STATUS_BUS_RESET:
1673                 scsicmd->result = DID_RESET << 16 | COMMAND_COMPLETE << 8;
1674                 break;
1675
1676         case SRB_STATUS_MESSAGE_REJECTED:
1677                 scsicmd->result = DID_ERROR << 16 | MESSAGE_REJECT << 8;
1678                 break;
1679         case SRB_STATUS_REQUEST_FLUSHED:
1680         case SRB_STATUS_ERROR:
1681         case SRB_STATUS_INVALID_REQUEST:
1682         case SRB_STATUS_REQUEST_SENSE_FAILED:
1683         case SRB_STATUS_NO_HBA:
1684         case SRB_STATUS_UNEXPECTED_BUS_FREE:
1685         case SRB_STATUS_PHASE_SEQUENCE_FAILURE:
1686         case SRB_STATUS_BAD_SRB_BLOCK_LENGTH:
1687         case SRB_STATUS_DELAYED_RETRY:
1688         case SRB_STATUS_BAD_FUNCTION:
1689         case SRB_STATUS_NOT_STARTED:
1690         case SRB_STATUS_NOT_IN_USE:
1691         case SRB_STATUS_FORCE_ABORT:
1692         case SRB_STATUS_DOMAIN_VALIDATION_FAIL:
1693         default:
1694 #ifdef AAC_DETAILED_STATUS_INFO
1695                 printk("aacraid: SRB ERROR(%u) %s scsi cmd 0x%x - scsi status 0x%x\n",
1696                         le32_to_cpu(srbreply->srb_status & 0x3F),
1697                         aac_get_status_string(
1698                                 le32_to_cpu(srbreply->srb_status) & 0x3F),
1699                         scsicmd->cmnd[0],
1700                         le32_to_cpu(srbreply->scsi_status));
1701 #endif
1702                 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
1703                 break;
1704         }
1705         if (le32_to_cpu(srbreply->scsi_status) == 0x02 ){  // Check Condition
1706                 int len;
1707                 scsicmd->result |= SAM_STAT_CHECK_CONDITION;
1708                 len = (srbreply->sense_data_size > sizeof(scsicmd->sense_buffer))?
1709                                 sizeof(scsicmd->sense_buffer):srbreply->sense_data_size;
1710 #ifdef AAC_DETAILED_STATUS_INFO
1711                 dprintk((KERN_WARNING "aac_srb_callback: check condition, status = %d len=%d\n",
1712                                         le32_to_cpu(srbreply->status), len));
1713 #endif
1714                 memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
1715
1716         }
1717         /*
1718          * OR in the scsi status (already shifted up a bit)
1719          */
1720         scsicmd->result |= le32_to_cpu(srbreply->scsi_status);
1721
1722         fib_complete(fibptr);
1723         fib_free(fibptr);
1724         aac_io_done(scsicmd);
1725 }
1726
1727 /**
1728  *
1729  * aac_send_scb_fib
1730  * @scsicmd: the scsi command block
1731  *
1732  * This routine will form a FIB and fill in the aac_srb from the
1733  * scsicmd passed in.
1734  */
1735
1736 static int aac_send_srb_fib(struct scsi_cmnd* scsicmd)
1737 {
1738         struct fib* cmd_fibcontext;
1739         struct aac_dev* dev;
1740         int status;
1741         struct aac_srb *srbcmd;
1742         u16 fibsize;
1743         u32 flag;
1744         u32 timeout;
1745
1746         if( scsicmd->device->id > 15 || scsicmd->device->lun > 7) {
1747                 scsicmd->result = DID_NO_CONNECT << 16;
1748                 scsicmd->scsi_done(scsicmd);
1749                 return 0;
1750         }
1751
1752         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1753         switch(scsicmd->sc_data_direction){
1754         case DMA_TO_DEVICE:
1755                 flag = SRB_DataOut;
1756                 break;
1757         case DMA_BIDIRECTIONAL:
1758                 flag = SRB_DataIn | SRB_DataOut;
1759                 break;
1760         case DMA_FROM_DEVICE:
1761                 flag = SRB_DataIn;
1762                 break;
1763         case DMA_NONE:
1764         default:        /* shuts up some versions of gcc */
1765                 flag = SRB_NoDataXfer;
1766                 break;
1767         }
1768
1769
1770         /*
1771          *      Allocate and initialize a Fib then setup a BlockWrite command
1772          */
1773         if (!(cmd_fibcontext = fib_alloc(dev))) {
1774                 return -1;
1775         }
1776         fib_init(cmd_fibcontext);
1777
1778         srbcmd = (struct aac_srb*) fib_data(cmd_fibcontext);
1779         srbcmd->function = cpu_to_le32(SRBF_ExecuteScsi);
1780         srbcmd->channel  = cpu_to_le32(aac_logical_to_phys(scsicmd->device->channel));
1781         srbcmd->id   = cpu_to_le32(scsicmd->device->id);
1782         srbcmd->lun      = cpu_to_le32(scsicmd->device->lun);
1783         srbcmd->flags    = cpu_to_le32(flag);
1784         timeout = (scsicmd->timeout-jiffies)/HZ;
1785         if(timeout == 0){
1786                 timeout = 1;
1787         }
1788         srbcmd->timeout  = cpu_to_le32(timeout);  // timeout in seconds
1789         srbcmd->retry_limit =cpu_to_le32(0); // Obsolete parameter
1790         srbcmd->cdb_size = cpu_to_le32(scsicmd->cmd_len);
1791
1792         if( dev->dac_support == 1 ) {
1793                 aac_build_sg64(scsicmd, (struct sgmap64*) &srbcmd->sg);
1794                 srbcmd->count = cpu_to_le32(scsicmd->request_bufflen);
1795
1796                 memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
1797                 memcpy(srbcmd->cdb, scsicmd->cmnd, scsicmd->cmd_len);
1798                 /*
1799                  *      Build Scatter/Gather list
1800                  */
1801                 fibsize = sizeof (struct aac_srb) + (((srbcmd->sg.count & 0xff) - 1) * sizeof (struct sgentry64));
1802
1803                 /*
1804                  *      Now send the Fib to the adapter
1805                  */
1806                 status = fib_send(ScsiPortCommand64, cmd_fibcontext, fibsize, FsaNormal, 0, 1,
1807                                   (fib_callback) aac_srb_callback, (void *) scsicmd);
1808         } else {
1809                 aac_build_sg(scsicmd, (struct sgmap*)&srbcmd->sg);
1810                 srbcmd->count = cpu_to_le32(scsicmd->request_bufflen);
1811
1812                 memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
1813                 memcpy(srbcmd->cdb, scsicmd->cmnd, scsicmd->cmd_len);
1814                 /*
1815                  *      Build Scatter/Gather list
1816                  */
1817                 fibsize = sizeof (struct aac_srb) + (((srbcmd->sg.count & 0xff) - 1) * sizeof (struct sgentry));
1818
1819                 /*
1820                  *      Now send the Fib to the adapter
1821                  */
1822                 status = fib_send(ScsiPortCommand, cmd_fibcontext, fibsize, FsaNormal, 0, 1,
1823                                   (fib_callback) aac_srb_callback, (void *) scsicmd);
1824         }
1825         /*
1826          *      Check that the command queued to the controller
1827          */
1828         if (status == -EINPROGRESS){
1829                 return 0;
1830         }
1831
1832         printk(KERN_WARNING "aac_srb: fib_send failed with status: %d\n", status);
1833         fib_complete(cmd_fibcontext);
1834         fib_free(cmd_fibcontext);
1835
1836         return -1;
1837 }
1838
1839 static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* psg)
1840 {
1841         struct aac_dev *dev;
1842         unsigned long byte_count = 0;
1843
1844         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1845         // Get rid of old data
1846         psg->count = cpu_to_le32(0);
1847         psg->sg[0].addr = cpu_to_le32(0);
1848         psg->sg[0].count = cpu_to_le32(0);
1849         if (scsicmd->use_sg) {
1850                 struct scatterlist *sg;
1851                 int i;
1852                 int sg_count;
1853                 sg = (struct scatterlist *) scsicmd->request_buffer;
1854
1855                 sg_count = pci_map_sg(dev->pdev, sg, scsicmd->use_sg,
1856                         scsicmd->sc_data_direction);
1857                 psg->count = cpu_to_le32(sg_count);
1858
1859                 byte_count = 0;
1860
1861                 for (i = 0; i < sg_count; i++) {
1862                         psg->sg[i].addr = cpu_to_le32(sg_dma_address(sg));
1863                         psg->sg[i].count = cpu_to_le32(sg_dma_len(sg));
1864                         byte_count += sg_dma_len(sg);
1865                         sg++;
1866                 }
1867                 /* hba wants the size to be exact */
1868                 if(byte_count > scsicmd->request_bufflen){
1869                         psg->sg[i-1].count -= (byte_count - scsicmd->request_bufflen);
1870                         byte_count = scsicmd->request_bufflen;
1871                 }
1872                 /* Check for command underflow */
1873                 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
1874                         printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
1875                                         byte_count, scsicmd->underflow);
1876                 }
1877         }
1878         else if(scsicmd->request_bufflen) {
1879                 dma_addr_t addr;
1880                 addr = pci_map_single(dev->pdev,
1881                                 scsicmd->request_buffer,
1882                                 scsicmd->request_bufflen,
1883                                 scsicmd->sc_data_direction);
1884                 psg->count = cpu_to_le32(1);
1885                 psg->sg[0].addr = cpu_to_le32(addr);
1886                 psg->sg[0].count = cpu_to_le32(scsicmd->request_bufflen);
1887                 scsicmd->SCp.dma_handle = addr;
1888                 byte_count = scsicmd->request_bufflen;
1889         }
1890         return byte_count;
1891 }
1892
1893
1894 static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* psg)
1895 {
1896         struct aac_dev *dev;
1897         unsigned long byte_count = 0;
1898         u64 le_addr;
1899
1900         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1901         // Get rid of old data
1902         psg->count = cpu_to_le32(0);
1903         psg->sg[0].addr[0] = cpu_to_le32(0);
1904         psg->sg[0].addr[1] = cpu_to_le32(0);
1905         psg->sg[0].count = cpu_to_le32(0);
1906         if (scsicmd->use_sg) {
1907                 struct scatterlist *sg;
1908                 int i;
1909                 int sg_count;
1910                 sg = (struct scatterlist *) scsicmd->request_buffer;
1911
1912                 sg_count = pci_map_sg(dev->pdev, sg, scsicmd->use_sg,
1913                         scsicmd->sc_data_direction);
1914                 psg->count = cpu_to_le32(sg_count);
1915
1916                 byte_count = 0;
1917
1918                 for (i = 0; i < sg_count; i++) {
1919                         le_addr = cpu_to_le64(sg_dma_address(sg));
1920                         psg->sg[i].addr[1] = (u32)(le_addr>>32);
1921                         psg->sg[i].addr[0] = (u32)(le_addr & 0xffffffff);
1922                         psg->sg[i].count = cpu_to_le32(sg_dma_len(sg));
1923                         byte_count += sg_dma_len(sg);
1924                         sg++;
1925                 }
1926                 /* hba wants the size to be exact */
1927                 if(byte_count > scsicmd->request_bufflen){
1928                         psg->sg[i-1].count -= (byte_count - scsicmd->request_bufflen);
1929                         byte_count = scsicmd->request_bufflen;
1930                 }
1931                 /* Check for command underflow */
1932                 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
1933                         printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
1934                                         byte_count, scsicmd->underflow);
1935                 }
1936         }
1937         else if(scsicmd->request_bufflen) {
1938                 dma_addr_t addr;
1939                 addr = pci_map_single(dev->pdev,
1940                                 scsicmd->request_buffer,
1941                                 scsicmd->request_bufflen,
1942                                 scsicmd->sc_data_direction);
1943                 psg->count = cpu_to_le32(1);
1944                 le_addr = cpu_to_le64(addr);
1945                 psg->sg[0].addr[1] = (u32)(le_addr>>32);
1946                 psg->sg[0].addr[0] = (u32)(le_addr & 0xffffffff);
1947                 psg->sg[0].count = cpu_to_le32(scsicmd->request_bufflen);
1948                 scsicmd->SCp.dma_handle = addr;
1949                 byte_count = scsicmd->request_bufflen;
1950         }
1951         return byte_count;
1952 }
1953
1954 #ifdef AAC_DETAILED_STATUS_INFO
1955
1956 struct aac_srb_status_info {
1957         u32     status;
1958         char    *str;
1959 };
1960
1961
1962 static struct aac_srb_status_info srb_status_info[] = {
1963         { SRB_STATUS_PENDING,           "Pending Status"},
1964         { SRB_STATUS_SUCCESS,           "Success"},
1965         { SRB_STATUS_ABORTED,           "Aborted Command"},
1966         { SRB_STATUS_ABORT_FAILED,      "Abort Failed"},
1967         { SRB_STATUS_ERROR,             "Error Event"},
1968         { SRB_STATUS_BUSY,              "Device Busy"},
1969         { SRB_STATUS_INVALID_REQUEST,   "Invalid Request"},
1970         { SRB_STATUS_INVALID_PATH_ID,   "Invalid Path ID"},
1971         { SRB_STATUS_NO_DEVICE,         "No Device"},
1972         { SRB_STATUS_TIMEOUT,           "Timeout"},
1973         { SRB_STATUS_SELECTION_TIMEOUT, "Selection Timeout"},
1974         { SRB_STATUS_COMMAND_TIMEOUT,   "Command Timeout"},
1975         { SRB_STATUS_MESSAGE_REJECTED,  "Message Rejected"},
1976         { SRB_STATUS_BUS_RESET,         "Bus Reset"},
1977         { SRB_STATUS_PARITY_ERROR,      "Parity Error"},
1978         { SRB_STATUS_REQUEST_SENSE_FAILED,"Request Sense Failed"},
1979         { SRB_STATUS_NO_HBA,            "No HBA"},
1980         { SRB_STATUS_DATA_OVERRUN,      "Data Overrun/Data Underrun"},
1981         { SRB_STATUS_UNEXPECTED_BUS_FREE,"Unexpected Bus Free"},
1982         { SRB_STATUS_PHASE_SEQUENCE_FAILURE,"Phase Error"},
1983         { SRB_STATUS_BAD_SRB_BLOCK_LENGTH,"Bad Srb Block Length"},
1984         { SRB_STATUS_REQUEST_FLUSHED,   "Request Flushed"},
1985         { SRB_STATUS_DELAYED_RETRY,     "Delayed Retry"},
1986         { SRB_STATUS_INVALID_LUN,       "Invalid LUN"},
1987         { SRB_STATUS_INVALID_TARGET_ID, "Invalid TARGET ID"},
1988         { SRB_STATUS_BAD_FUNCTION,      "Bad Function"},
1989         { SRB_STATUS_ERROR_RECOVERY,    "Error Recovery"},
1990         { SRB_STATUS_NOT_STARTED,       "Not Started"},
1991         { SRB_STATUS_NOT_IN_USE,        "Not In Use"},
1992         { SRB_STATUS_FORCE_ABORT,       "Force Abort"},
1993         { SRB_STATUS_DOMAIN_VALIDATION_FAIL,"Domain Validation Failure"},
1994         { 0xff,                         "Unknown Error"}
1995 };
1996
1997 char *aac_get_status_string(u32 status)
1998 {
1999         int i;
2000
2001         for(i=0; i < (sizeof(srb_status_info)/sizeof(struct aac_srb_status_info)); i++ ){
2002                 if(srb_status_info[i].status == status){
2003                         return srb_status_info[i].str;
2004                 }
2005         }
2006
2007         return "Bad Status Code";
2008 }
2009
2010 #endif