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 TARGET_LUN_TO_CONTAINER(target, lun)    (target)
  57 #define CONTAINER_TO_TARGET(cont)               ((cont))
  58 #define CONTAINER_TO_LUN(cont)                  (0)
  59
  60 #define MAX_FIB_DATA (sizeof(struct hw_fib) - sizeof(FIB_HEADER))
  61
  62 #define MAX_DRIVER_SG_SEGMENT_COUNT 17
  63
  64 /*
  65  *      Sense keys
  66  */
  67 #define SENKEY_NO_SENSE      0x00
  68 #define SENKEY_UNDEFINED     0x01
  69 #define SENKEY_NOT_READY     0x02
  70 #define SENKEY_MEDIUM_ERR    0x03
  71 #define SENKEY_HW_ERR        0x04
  72 #define SENKEY_ILLEGAL       0x05
  73 #define SENKEY_ATTENTION     0x06
  74 #define SENKEY_PROTECTED     0x07
  75 #define SENKEY_BLANK         0x08
  76 #define SENKEY_V_UNIQUE      0x09
  77 #define SENKEY_CPY_ABORT     0x0A
  78 #define SENKEY_ABORT         0x0B
  79 #define SENKEY_EQUAL         0x0C
  80 #define SENKEY_VOL_OVERFLOW  0x0D
  81 #define SENKEY_MISCOMP       0x0E
  82 #define SENKEY_RESERVED      0x0F
  83
  84 /*
  85  *      Sense codes
  86  */
  87
  88 #define SENCODE_NO_SENSE                        0x00
  89 #define SENCODE_END_OF_DATA                     0x00
  90 #define SENCODE_BECOMING_READY                  0x04
  91 #define SENCODE_INIT_CMD_REQUIRED               0x04
  92 #define SENCODE_PARAM_LIST_LENGTH_ERROR         0x1A
  93 #define SENCODE_INVALID_COMMAND                 0x20
  94 #define SENCODE_LBA_OUT_OF_RANGE                0x21
  95 #define SENCODE_INVALID_CDB_FIELD               0x24
  96 #define SENCODE_LUN_NOT_SUPPORTED               0x25
  97 #define SENCODE_INVALID_PARAM_FIELD             0x26
  98 #define SENCODE_PARAM_NOT_SUPPORTED             0x26
  99 #define SENCODE_PARAM_VALUE_INVALID             0x26
 100 #define SENCODE_RESET_OCCURRED                  0x29
 101 #define SENCODE_LUN_NOT_SELF_CONFIGURED_YET     0x3E
 102 #define SENCODE_INQUIRY_DATA_CHANGED            0x3F
 103 #define SENCODE_SAVING_PARAMS_NOT_SUPPORTED     0x39
 104 #define SENCODE_DIAGNOSTIC_FAILURE              0x40
 105 #define SENCODE_INTERNAL_TARGET_FAILURE         0x44
 106 #define SENCODE_INVALID_MESSAGE_ERROR           0x49
 107 #define SENCODE_LUN_FAILED_SELF_CONFIG          0x4c
 108 #define SENCODE_OVERLAPPED_COMMAND              0x4E
 109
 110 /*
 111  *      Additional sense codes
 112  */
 113
 114 #define ASENCODE_NO_SENSE                       0x00
 115 #define ASENCODE_END_OF_DATA                    0x05
 116 #define ASENCODE_BECOMING_READY                 0x01
 117 #define ASENCODE_INIT_CMD_REQUIRED              0x02
 118 #define ASENCODE_PARAM_LIST_LENGTH_ERROR        0x00
 119 #define ASENCODE_INVALID_COMMAND                0x00
 120 #define ASENCODE_LBA_OUT_OF_RANGE               0x00
 121 #define ASENCODE_INVALID_CDB_FIELD              0x00
 122 #define ASENCODE_LUN_NOT_SUPPORTED              0x00
 123 #define ASENCODE_INVALID_PARAM_FIELD            0x00
 124 #define ASENCODE_PARAM_NOT_SUPPORTED            0x01
 125 #define ASENCODE_PARAM_VALUE_INVALID            0x02
 126 #define ASENCODE_RESET_OCCURRED                 0x00
 127 #define ASENCODE_LUN_NOT_SELF_CONFIGURED_YET    0x00
 128 #define ASENCODE_INQUIRY_DATA_CHANGED           0x03
 129 #define ASENCODE_SAVING_PARAMS_NOT_SUPPORTED    0x00
 130 #define ASENCODE_DIAGNOSTIC_FAILURE             0x80
 131 #define ASENCODE_INTERNAL_TARGET_FAILURE        0x00
 132 #define ASENCODE_INVALID_MESSAGE_ERROR          0x00
 133 #define ASENCODE_LUN_FAILED_SELF_CONFIG         0x00
 134 #define ASENCODE_OVERLAPPED_COMMAND             0x00
 135
 136 #define BYTE0(x) (unsigned char)(x)
 137 #define BYTE1(x) (unsigned char)((x) >> 8)
 138 #define BYTE2(x) (unsigned char)((x) >> 16)
 139 #define BYTE3(x) (unsigned char)((x) >> 24)
 140
 141 /*------------------------------------------------------------------------------
 142  *              S T R U C T S / T Y P E D E F S
 143  *----------------------------------------------------------------------------*/
 144 /* SCSI inquiry data */
 145 struct inquiry_data {
 146         u8 inqd_pdt;    /* Peripheral qualifier | Peripheral Device Type  */
 147         u8 inqd_dtq;    /* RMB | Device Type Qualifier  */
 148         u8 inqd_ver;    /* ISO version | ECMA version | ANSI-approved version */
 149         u8 inqd_rdf;    /* AENC | TrmIOP | Response data format */
 150         u8 inqd_len;    /* Additional length (n-4) */
 151         u8 inqd_pad1[2];/* Reserved - must be zero */
 152         u8 inqd_pad2;   /* RelAdr | WBus32 | WBus16 |  Sync  | Linked |Reserved| CmdQue | SftRe */
 153         u8 inqd_vid[8]; /* Vendor ID */
 154         u8 inqd_pid[16];/* Product ID */
 155         u8 inqd_prl[4]; /* Product Revision Level */
 156 };
 157
 158 struct sense_data {
 159         u8 error_code;          /* 70h (current errors), 71h(deferred errors) */
 160         u8 valid:1;             /* A valid bit of one indicates that the information  */
 161                                 /* field contains valid information as defined in the
 162                                  * SCSI-2 Standard.
 163                                  */
 164         u8 segment_number;      /* Only used for COPY, COMPARE, or COPY AND VERIFY Commands */
 165         u8 sense_key:4;         /* Sense Key */
 166         u8 reserved:1;
 167         u8 ILI:1;               /* Incorrect Length Indicator */
 168         u8 EOM:1;               /* End Of Medium - reserved for random access devices */
 169         u8 filemark:1;          /* Filemark - reserved for random access devices */
 170
 171         u8 information[4];      /* for direct-access devices, contains the unsigned
 172                                  * logical block address or residue associated with
 173                                  * the sense key
 174                                  */
 175         u8 add_sense_len;       /* number of additional sense bytes to follow this field */
 176         u8 cmnd_info[4];        /* not used */
 177         u8 ASC;                 /* Additional Sense Code */
 178         u8 ASCQ;                /* Additional Sense Code Qualifier */
 179         u8 FRUC;                /* Field Replaceable Unit Code - not used */
 180         u8 bit_ptr:3;           /* indicates which byte of the CDB or parameter data
 181                                  * was in error
 182                                  */
 183         u8 BPV:1;               /* bit pointer valid (BPV): 1- indicates that
 184                                  * the bit_ptr field has valid value
 185                                  */
 186         u8 reserved2:2;
 187         u8 CD:1;                /* command data bit: 1- illegal parameter in CDB.
 188                                  * 0- illegal parameter in data.
 189                                  */
 190         u8 SKSV:1;
 191         u8 field_ptr[2];        /* byte of the CDB or parameter data in error */
 192 };
 193
 194 /*
 195  *              M O D U L E   G L O B A L S
 196  */
 197
 198 static struct fsa_scsi_hba *fsa_dev[MAXIMUM_NUM_ADAPTERS];      /*  SCSI Device Instance Pointers */
 199 static struct sense_data sense_data[MAXIMUM_NUM_CONTAINERS];
 200 static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* sgmap);
 201 static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* psg);
 202 static int aac_send_srb_fib(struct scsi_cmnd* scsicmd);
 203 #ifdef AAC_DETAILED_STATUS_INFO
 204 static char *aac_get_status_string(u32 status);
 205 #endif
 206
 207 /**
 208  *      aac_get_containers      -       list containers
 209  *      @common: adapter to probe
 210  *
 211  *      Make a list of all containers on this controller
 212  */
 213 int aac_get_containers(struct aac_dev *dev)
 214 {
 215         struct fsa_scsi_hba *fsa_dev_ptr;
 216         u32 index;
 217         int status = 0;
 218         struct aac_query_mount *dinfo;
 219         struct aac_mount *dresp;
 220         struct fib * fibptr;
 221         unsigned instance;
 222
 223         fsa_dev_ptr = &(dev->fsa_dev);
 224         instance = dev->scsi_host_ptr->unique_id;
 225
 226         if (!(fibptr = fib_alloc(dev)))
 227                 return -ENOMEM;
 228
 229         for (index = 0; index < MAXIMUM_NUM_CONTAINERS; index++) {
 230                 fib_init(fibptr);
 231                 dinfo = (struct aac_query_mount *) fib_data(fibptr);
 232
 233                 dinfo->command = cpu_to_le32(VM_NameServe);
 234                 dinfo->count = cpu_to_le32(index);
 235                 dinfo->type = cpu_to_le32(FT_FILESYS);
 236
 237                 status = fib_send(ContainerCommand,
 238                                     fibptr,
 239                                     sizeof (struct aac_query_mount),
 240                                     FsaNormal,
 241                                     1, 1,
 242                                     NULL, NULL);
 243                 if (status < 0 ) {
 244                         printk(KERN_WARNING "aac_get_containers: SendFIB failed.\n");
 245                         break;
 246                 }
 247                 dresp = (struct aac_mount *)fib_data(fibptr);
 248
 249                 if ((le32_to_cpu(dresp->status) == ST_OK) &&
 250                     (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE) &&
 251                     (le32_to_cpu(dresp->mnt[0].state) != FSCS_HIDDEN)) {
 252                         fsa_dev_ptr->valid[index] = 1;
 253                         fsa_dev_ptr->type[index] = le32_to_cpu(dresp->mnt[0].vol);
 254                         fsa_dev_ptr->size[index] = le32_to_cpu(dresp->mnt[0].capacity);
 255                         if (le32_to_cpu(dresp->mnt[0].state) & FSCS_READONLY)
 256                                     fsa_dev_ptr->ro[index] = 1;
 257                 }
 258                 fib_complete(fibptr);
 259                 /*
 260                  *      If there are no more containers, then stop asking.
 261                  */
 262                 if ((index + 1) >= le32_to_cpu(dresp->count)){
 263                         break;
 264                 }
 265         }
 266         fib_free(fibptr);
 267         fsa_dev[instance] = fsa_dev_ptr;
 268         return status;
 269 }
 270
 271 /**
 272  *      probe_container         -       query a logical volume
 273  *      @dev: device to query
 274  *      @cid: container identifier
 275  *
 276  *      Queries the controller about the given volume. The volume information
 277  *      is updated in the struct fsa_scsi_hba structure rather than returned.
 278  */
 279
 280 static int probe_container(struct aac_dev *dev, int cid)
 281 {
 282         struct fsa_scsi_hba *fsa_dev_ptr;
 283         int status;
 284         struct aac_query_mount *dinfo;
 285         struct aac_mount *dresp;
 286         struct fib * fibptr;
 287         unsigned instance;
 288
 289         fsa_dev_ptr = &(dev->fsa_dev);
 290         instance = dev->scsi_host_ptr->unique_id;
 291
 292         if (!(fibptr = fib_alloc(dev)))
 293                 return -ENOMEM;
 294
 295         fib_init(fibptr);
 296
 297         dinfo = (struct aac_query_mount *)fib_data(fibptr);
 298
 299         dinfo->command = cpu_to_le32(VM_NameServe);
 300         dinfo->count = cpu_to_le32(cid);
 301         dinfo->type = cpu_to_le32(FT_FILESYS);
 302
 303         status = fib_send(ContainerCommand,
 304                             fibptr,
 305                             sizeof(struct aac_query_mount),
 306                             FsaNormal,
 307                             1, 1,
 308                             NULL, NULL);
 309         if (status < 0) {
 310                 printk(KERN_WARNING "aacraid: probe_containers query failed.\n");
 311                 goto error;
 312         }
 313
 314         dresp = (struct aac_mount *) fib_data(fibptr);
 315
 316         if ((le32_to_cpu(dresp->status) == ST_OK) &&
 317             (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE) &&
 318             (le32_to_cpu(dresp->mnt[0].state) != FSCS_HIDDEN)) {
 319                 fsa_dev_ptr->valid[cid] = 1;
 320                 fsa_dev_ptr->type[cid] = le32_to_cpu(dresp->mnt[0].vol);
 321                 fsa_dev_ptr->size[cid] = le32_to_cpu(dresp->mnt[0].capacity);
 322                 if (le32_to_cpu(dresp->mnt[0].state) & FSCS_READONLY)
 323                         fsa_dev_ptr->ro[cid] = 1;
 324         }
 325
 326 error:
 327         fib_complete(fibptr);
 328         fib_free(fibptr);
 329
 330         return status;
 331 }
 332
 333 /* Local Structure to set SCSI inquiry data strings */
 334 struct scsi_inq {
 335         char vid[8];         /* Vendor ID */
 336         char pid[16];        /* Product ID */
 337         char prl[4];         /* Product Revision Level */
 338 };
 339
 340 /**
 341  *      InqStrCopy      -       string merge
 342  *      @a:     string to copy from
 343  *      @b:     string to copy to
 344  *
 345  *      Copy a String from one location to another
 346  *      without copying \0
 347  */
 348
 349 static void inqstrcpy(char *a, char *b)
 350 {
 351
 352         while(*a != (char)0)
 353                 *b++ = *a++;
 354 }
 355
 356 static char *container_types[] = {
 357         "None",
 358         "Volume",
 359         "Mirror",
 360         "Stripe",
 361         "RAID5",
 362         "SSRW",
 363         "SSRO",
 364         "Morph",
 365         "Legacy",
 366         "RAID4",
 367         "RAID10",
 368         "RAID00",
 369         "V-MIRRORS",
 370         "PSEUDO R4",
 371         "RAID50",
 372         "Unknown"
 373 };
 374
 375
 376
 377 /* Function: setinqstr
 378  *
 379  * Arguments: [1] pointer to void [1] int
 380  *
 381  * Purpose: Sets SCSI inquiry data strings for vendor, product
 382  * and revision level. Allows strings to be set in platform dependent
 383  * files instead of in OS dependent driver source.
 384  */
 385
 386 static void setinqstr(int devtype, void *data, int tindex)
 387 {
 388         struct scsi_inq *str;
 389         char *findit;
 390         struct aac_driver_ident *mp;
 391
 392         mp = aac_get_driver_ident(devtype);
 393
 394         str = (struct scsi_inq *)(data); /* cast data to scsi inq block */
 395
 396         inqstrcpy (mp->vname, str->vid);
 397         inqstrcpy (mp->model, str->pid); /* last six chars reserved for vol type */
 398
 399         findit = str->pid;
 400
 401         for ( ; *findit != ' '; findit++); /* walk till we find a space then incr by 1 */
 402                 findit++;
 403
 404         if (tindex < (sizeof(container_types)/sizeof(char *))){
 405                 inqstrcpy (container_types[tindex], findit);
 406         }
 407         inqstrcpy ("V1.0", str->prl);
 408 }
 409
 410 void set_sense(u8 *sense_buf, u8 sense_key, u8 sense_code,
 411                     u8 a_sense_code, u8 incorrect_length,
 412                     u8 bit_pointer, u16 field_pointer,
 413                     u32 residue)
 414 {
 415         sense_buf[0] = 0xF0;    /* Sense data valid, err code 70h (current error) */
 416         sense_buf[1] = 0;       /* Segment number, always zero */
 417
 418         if (incorrect_length) {
 419                 sense_buf[2] = sense_key | 0x20;/* Set ILI bit | sense key */
 420                 sense_buf[3] = BYTE3(residue);
 421                 sense_buf[4] = BYTE2(residue);
 422                 sense_buf[5] = BYTE1(residue);
 423                 sense_buf[6] = BYTE0(residue);
 424         } else
 425                 sense_buf[2] = sense_key;       /* Sense key */
 426
 427         if (sense_key == SENKEY_ILLEGAL)
 428                 sense_buf[7] = 10;      /* Additional sense length */
 429         else
 430                 sense_buf[7] = 6;       /* Additional sense length */
 431
 432         sense_buf[12] = sense_code;     /* Additional sense code */
 433         sense_buf[13] = a_sense_code;   /* Additional sense code qualifier */
 434         if (sense_key == SENKEY_ILLEGAL) {
 435                 sense_buf[15] = 0;
 436
 437                 if (sense_code == SENCODE_INVALID_PARAM_FIELD)
 438                         sense_buf[15] = 0x80;/* Std sense key specific field */
 439                 /* Illegal parameter is in the parameter block */
 440
 441                 if (sense_code == SENCODE_INVALID_CDB_FIELD)
 442                         sense_buf[15] = 0xc0;/* Std sense key specific field */
 443                 /* Illegal parameter is in the CDB block */
 444                 sense_buf[15] |= bit_pointer;
 445                 sense_buf[16] = field_pointer >> 8;     /* MSB */
 446                 sense_buf[17] = field_pointer;          /* LSB */
 447         }
 448 }
 449
 450 static void aac_io_done(struct scsi_cmnd * scsicmd)
 451 {
 452         unsigned long cpu_flags;
 453         struct Scsi_Host *host = scsicmd->device->host;
 454         spin_lock_irqsave(host->host_lock, cpu_flags);
 455         scsicmd->scsi_done(scsicmd);
 456         spin_unlock_irqrestore(host->host_lock, cpu_flags);
 457 }
 458
 459 static void __aac_io_done(struct scsi_cmnd * scsicmd)
 460 {
 461         scsicmd->scsi_done(scsicmd);
 462 }
 463
 464 int aac_get_adapter_info(struct aac_dev* dev)
 465 {
 466         struct fib* fibptr;
 467         struct aac_adapter_info* info;
 468         int rcode;
 469         u32 tmp;
 470         if (!(fibptr = fib_alloc(dev)))
 471                 return -ENOMEM;
 472
 473         fib_init(fibptr);
 474         info = (struct aac_adapter_info*) fib_data(fibptr);
 475
 476         memset(info,0,sizeof(struct aac_adapter_info));
 477
 478         rcode = fib_send(RequestAdapterInfo,
 479                         fibptr,
 480                         sizeof(struct aac_adapter_info),
 481                         FsaNormal,
 482                         1, 1,
 483                         NULL,
 484                         NULL);
 485
 486         memcpy(&dev->adapter_info, info, sizeof(struct aac_adapter_info));
 487
 488         tmp = dev->adapter_info.kernelrev;
 489         printk(KERN_INFO"%s%d: kernel %d.%d.%d build %d\n",
 490                         dev->name, dev->id,
 491                         tmp>>24,(tmp>>16)&0xff,(tmp>>8)&0xff,
 492                         dev->adapter_info.kernelbuild);
 493         tmp = dev->adapter_info.monitorrev;
 494         printk(KERN_INFO"%s%d: monitor %d.%d.%d build %d\n",
 495                         dev->name, dev->id,
 496                         tmp>>24,(tmp>>16)&0xff,(tmp>>8)&0xff,
 497                         dev->adapter_info.monitorbuild);
 498         tmp = dev->adapter_info.biosrev;
 499         printk(KERN_INFO"%s%d: bios %d.%d.%d build %d\n",
 500                         dev->name, dev->id,
 501                         tmp>>24,(tmp>>16)&0xff,(tmp>>8)&0xff,
 502                         dev->adapter_info.biosbuild);
 503         printk(KERN_INFO"%s%d: serial %x%x\n",
 504                         dev->name, dev->id,
 505                         dev->adapter_info.serial[0],
 506                         dev->adapter_info.serial[1]);
 507
 508         dev->nondasd_support = 0;
 509         if(dev->adapter_info.options & AAC_OPT_NONDASD){
 510 //              dev->nondasd_support = 1;
 511 // dmb - temporarily disable nondasd
 512         }
 513         if(nondasd != -1) {
 514                 dev->nondasd_support = (nondasd!=0);
 515         }
 516         if(dev->nondasd_support != 0){
 517                 printk(KERN_INFO"%s%d: Non-DASD support enabled\n",dev->name, dev->id);
 518         }
 519
 520         dev->pae_support = 0;
 521         if( (sizeof(dma_addr_t) > 4) && (dev->adapter_info.options & AAC_OPT_SGMAP_HOST64)){
 522                 dev->pae_support = 1;
 523         }
 524
 525         if(paemode != -1){
 526                 dev->pae_support = (paemode!=0);
 527         }
 528         if(dev->pae_support != 0) {
 529                 printk(KERN_INFO"%s%d: 64 Bit PAE enabled\n", dev->name, dev->id);
 530                 pci_set_dma_mask(dev->pdev, (dma_addr_t)0xFFFFFFFFFFFFFFFFULL);
 531         }
 532
 533         fib_complete(fibptr);
 534         fib_free(fibptr);
 535
 536         return rcode;
 537 }
 538
 539
 540 static void read_callback(void *context, struct fib * fibptr)
 541 {
 542         struct aac_dev *dev;
 543         struct aac_read_reply *readreply;
 544         struct scsi_cmnd *scsicmd;
 545         u32 lba;
 546         u32 cid;
 547
 548         scsicmd = (struct scsi_cmnd *) context;
 549
 550         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
 551         cid =TARGET_LUN_TO_CONTAINER(scsicmd->device->id, scsicmd->device->lun);
 552
 553         lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
 554         dprintk((KERN_DEBUG "read_callback[cpu %d]: lba = %u, t = %ld.\n", smp_processor_id(), lba, jiffies));
 555
 556         if (fibptr == NULL)
 557                 BUG();
 558
 559         if(scsicmd->use_sg)
 560                 pci_unmap_sg(dev->pdev,
 561                         (struct scatterlist *)scsicmd->buffer,
 562                         scsicmd->use_sg,
 563                         scsicmd->sc_data_direction);
 564         else if(scsicmd->request_bufflen)
 565                 pci_unmap_single(dev->pdev, (dma_addr_t)(ulong)scsicmd->SCp.ptr,
 566                                  scsicmd->request_bufflen,
 567                                  scsicmd->sc_data_direction);
 568         readreply = (struct aac_read_reply *)fib_data(fibptr);
 569         if (le32_to_cpu(readreply->status) == ST_OK)
 570                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
 571         else {
 572                 printk(KERN_WARNING "read_callback: read failed, status = %d\n", readreply->status);
 573                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
 574                 set_sense((u8 *) &sense_data[cid],
 575                                     SENKEY_HW_ERR,
 576                                     SENCODE_INTERNAL_TARGET_FAILURE,
 577                                     ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
 578                                     0, 0);
 579         }
 580         fib_complete(fibptr);
 581         fib_free(fibptr);
 582
 583         aac_io_done(scsicmd);
 584 }
 585
 586 static void write_callback(void *context, struct fib * fibptr)
 587 {
 588         struct aac_dev *dev;
 589         struct aac_write_reply *writereply;
 590         struct scsi_cmnd *scsicmd;
 591         u32 lba;
 592         u32 cid;
 593
 594         scsicmd = (struct scsi_cmnd *) context;
 595         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
 596         cid = TARGET_LUN_TO_CONTAINER(scsicmd->device->id, scsicmd->device->lun);
 597
 598         lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
 599         dprintk((KERN_DEBUG "write_callback[cpu %d]: lba = %u, t = %ld.\n", smp_processor_id(), lba, jiffies));
 600         if (fibptr == NULL)
 601                 BUG();
 602
 603         if(scsicmd->use_sg)
 604                 pci_unmap_sg(dev->pdev,
 605                         (struct scatterlist *)scsicmd->buffer,
 606                         scsicmd->use_sg,
 607                         scsicmd->sc_data_direction);
 608         else if(scsicmd->request_bufflen)
 609                 pci_unmap_single(dev->pdev, (dma_addr_t)(ulong)scsicmd->SCp.ptr,
 610                                  scsicmd->request_bufflen,
 611                                  scsicmd->sc_data_direction);
 612
 613         writereply = (struct aac_write_reply *) fib_data(fibptr);
 614         if (le32_to_cpu(writereply->status) == ST_OK)
 615                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
 616         else {
 617                 printk(KERN_WARNING "write_callback: write failed, status = %d\n", writereply->status);
 618                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
 619                 set_sense((u8 *) &sense_data[cid],
 620                                     SENKEY_HW_ERR,
 621                                     SENCODE_INTERNAL_TARGET_FAILURE,
 622                                     ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
 623                                     0, 0);
 624         }
 625
 626         fib_complete(fibptr);
 627         fib_free(fibptr);
 628         aac_io_done(scsicmd);
 629 }
 630
 631 int aac_read(struct scsi_cmnd * scsicmd, int cid)
 632 {
 633         u32 lba;
 634         u32 count;
 635         int status;
 636
 637         u16 fibsize;
 638         struct aac_dev *dev;
 639         struct fib * cmd_fibcontext;
 640
 641         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
 642         /*
 643          *      Get block address and transfer length
 644          */
 645         if (scsicmd->cmnd[0] == READ_6) /* 6 byte command */
 646         {
 647                 dprintk((KERN_DEBUG "aachba: received a read(6) command on target %d.\n", cid));
 648
 649                 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
 650                 count = scsicmd->cmnd[4];
 651
 652                 if (count == 0)
 653                         count = 256;
 654         } else {
 655                 dprintk((KERN_DEBUG "aachba: received a read(10) command on target %d.\n", cid));
 656
 657                 lba = (scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
 658                 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
 659         }
 660         dprintk((KERN_DEBUG "aac_read[cpu %d]: lba = %u, t = %ld.\n", smp_processor_id(), lba, jiffies));
 661         /*
 662          *      Alocate and initialize a Fib
 663          */
 664         if (!(cmd_fibcontext = fib_alloc(dev))) {
 665                 scsicmd->result = DID_ERROR << 16;
 666                 aac_io_done(scsicmd);
 667                 return (-1);
 668         }
 669
 670         fib_init(cmd_fibcontext);
 671
 672         if(dev->pae_support == 1){
 673                 struct aac_read64 *readcmd;
 674                 readcmd = (struct aac_read64 *) fib_data(cmd_fibcontext);
 675                 readcmd->command = cpu_to_le32(VM_CtHostRead64);
 676                 readcmd->cid = cpu_to_le16(cid);
 677                 readcmd->sector_count = cpu_to_le16(count);
 678                 readcmd->block = cpu_to_le32(lba);
 679                 readcmd->pad   = cpu_to_le16(0);
 680                 readcmd->flags = cpu_to_le16(0);
 681
 682                 aac_build_sg64(scsicmd, &readcmd->sg);
 683                 if(readcmd->sg.count > MAX_DRIVER_SG_SEGMENT_COUNT)
 684                         BUG();
 685                 fibsize = sizeof(struct aac_read64) + ((readcmd->sg.count - 1) * sizeof (struct sgentry64));
 686                 /*
 687                  *      Now send the Fib to the adapter
 688                  */
 689                 status = fib_send(ContainerCommand64,
 690                           cmd_fibcontext,
 691                           fibsize,
 692                           FsaNormal,
 693                           0, 1,
 694                           (fib_callback) read_callback,
 695                           (void *) scsicmd);
 696         } else {
 697                 struct aac_read *readcmd;
 698                 readcmd = (struct aac_read *) fib_data(cmd_fibcontext);
 699                 readcmd->command = cpu_to_le32(VM_CtBlockRead);
 700                 readcmd->cid = cpu_to_le32(cid);
 701                 readcmd->block = cpu_to_le32(lba);
 702                 readcmd->count = cpu_to_le32(count * 512);
 703
 704                 if (count * 512 > (64 * 1024))
 705                         BUG();
 706
 707                 aac_build_sg(scsicmd, &readcmd->sg);
 708                 if(readcmd->sg.count > MAX_DRIVER_SG_SEGMENT_COUNT)
 709                         BUG();
 710                 fibsize = sizeof(struct aac_read) + ((readcmd->sg.count - 1) * sizeof (struct sgentry));
 711                 /*
 712                  *      Now send the Fib to the adapter
 713                  */
 714                 status = fib_send(ContainerCommand,
 715                           cmd_fibcontext,
 716                           fibsize,
 717                           FsaNormal,
 718                           0, 1,
 719                           (fib_callback) read_callback,
 720                           (void *) scsicmd);
 721         }
 722
 723
 724
 725         /*
 726          *      Check that the command queued to the controller
 727          */
 728         if (status == -EINPROGRESS)
 729                 return 0;
 730
 731         printk(KERN_WARNING "aac_read: fib_send failed with status: %d.\n", status);
 732         /*
 733          *      For some reason, the Fib didn't queue, return QUEUE_FULL
 734          */
 735         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_TASK_SET_FULL;
 736         aac_io_done(scsicmd);
 737         fib_complete(cmd_fibcontext);
 738         fib_free(cmd_fibcontext);
 739         return -1;
 740 }
 741
 742 static int aac_write(struct scsi_cmnd * scsicmd, int cid)
 743 {
 744         u32 lba;
 745         u32 count;
 746         int status;
 747         u16 fibsize;
 748         struct aac_dev *dev;
 749         struct fib * cmd_fibcontext;
 750
 751         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
 752         /*
 753          *      Get block address and transfer length
 754          */
 755         if (scsicmd->cmnd[0] == WRITE_6)        /* 6 byte command */
 756         {
 757                 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
 758                 count = scsicmd->cmnd[4];
 759                 if (count == 0)
 760                         count = 256;
 761         } else {
 762                 dprintk((KERN_DEBUG "aachba: received a write(10) command on target %d.\n", cid));
 763                 lba = (scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
 764                 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
 765         }
 766         dprintk((KERN_DEBUG "aac_write[cpu %d]: lba = %u, t = %ld.\n", smp_processor_id(), lba, jiffies));
 767         /*
 768          *      Allocate and initialize a Fib then setup a BlockWrite command
 769          */
 770         if (!(cmd_fibcontext = fib_alloc(dev))) {
 771                 scsicmd->result = DID_ERROR << 16;
 772                 aac_io_done(scsicmd);
 773                 return -1;
 774         }
 775         fib_init(cmd_fibcontext);
 776
 777         if(dev->pae_support == 1){
 778                 struct aac_write64 *writecmd;
 779                 writecmd = (struct aac_write64 *) fib_data(cmd_fibcontext);
 780                 writecmd->command = cpu_to_le32(VM_CtHostWrite64);
 781                 writecmd->cid = cpu_to_le16(cid);
 782                 writecmd->sector_count = cpu_to_le16(count);
 783                 writecmd->block = cpu_to_le32(lba);
 784                 writecmd->pad   = cpu_to_le16(0);
 785                 writecmd->flags = cpu_to_le16(0);
 786
 787                 aac_build_sg64(scsicmd, &writecmd->sg);
 788                 if(writecmd->sg.count > MAX_DRIVER_SG_SEGMENT_COUNT)
 789                         BUG();
 790                 fibsize = sizeof(struct aac_write64) + ((writecmd->sg.count - 1) * sizeof (struct sgentry64));
 791                 /*
 792                  *      Now send the Fib to the adapter
 793                  */
 794                 status = fib_send(ContainerCommand64,
 795                           cmd_fibcontext,
 796                           fibsize,
 797                           FsaNormal,
 798                           0, 1,
 799                           (fib_callback) write_callback,
 800                           (void *) scsicmd);
 801         } else {
 802                 struct aac_write *writecmd;
 803                 writecmd = (struct aac_write *) fib_data(cmd_fibcontext);
 804                 writecmd->command = cpu_to_le32(VM_CtBlockWrite);
 805                 writecmd->cid = cpu_to_le32(cid);
 806                 writecmd->block = cpu_to_le32(lba);
 807                 writecmd->count = cpu_to_le32(count * 512);
 808                 writecmd->sg.count = cpu_to_le32(1);
 809                 /* ->stable is not used - it did mean which type of write */
 810
 811                 if (count * 512 > (64 * 1024)) {
 812                         BUG();
 813                 }
 814
 815                 aac_build_sg(scsicmd, &writecmd->sg);
 816                 if(writecmd->sg.count > MAX_DRIVER_SG_SEGMENT_COUNT)
 817                         BUG();
 818                 fibsize = sizeof(struct aac_write) + ((writecmd->sg.count - 1) * sizeof (struct sgentry));
 819                 /*
 820                  *      Now send the Fib to the adapter
 821                  */
 822                 status = fib_send(ContainerCommand,
 823                           cmd_fibcontext,
 824                           fibsize,
 825                           FsaNormal,
 826                           0, 1,
 827                           (fib_callback) write_callback,
 828                           (void *) scsicmd);
 829         }
 830
 831         /*
 832          *      Check that the command queued to the controller
 833          */
 834         if (status == -EINPROGRESS)
 835                 return 0;
 836
 837         printk(KERN_WARNING "aac_write: fib_send failed with status: %d\n", status);
 838         /*
 839          *      For some reason, the Fib didn't queue, return QUEUE_FULL
 840          */
 841         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_TASK_SET_FULL;
 842         aac_io_done(scsicmd);
 843
 844         fib_complete(cmd_fibcontext);
 845         fib_free(cmd_fibcontext);
 846         return -1;
 847 }
 848
 849
 850 /**
 851  *      aac_scsi_cmd()          -       Process SCSI command
 852  *      @scsicmd:               SCSI command block
 853  *      @wait:                  1 if the user wants to await completion
 854  *
 855  *      Emulate a SCSI command and queue the required request for the
 856  *      aacraid firmware.
 857  */
 858
 859 int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 860 {
 861         u32 cid = 0;
 862         struct fsa_scsi_hba *fsa_dev_ptr;
 863         int cardtype;
 864         int ret;
 865         struct Scsi_Host *host = scsicmd->device->host;
 866         struct aac_dev *dev = (struct aac_dev *)host->hostdata;
 867
 868         cardtype = dev->cardtype;
 869
 870         fsa_dev_ptr = fsa_dev[host->unique_id];
 871
 872         /*
 873          *      If the bus, target or lun is out of range, return fail
 874          *      Test does not apply to ID 16, the pseudo id for the controller
 875          *      itself.
 876          */
 877         if (scsicmd->device->id != host->this_id) {
 878                 if ((scsicmd->device->channel == 0) ){
 879                         if( (scsicmd->device->id >= AAC_MAX_TARGET) || (scsicmd->device->lun != 0)){
 880                                 scsicmd->result = DID_NO_CONNECT << 16;
 881                                 __aac_io_done(scsicmd);
 882                                 return 0;
 883                         }
 884                         cid = TARGET_LUN_TO_CONTAINER(scsicmd->device->id, scsicmd->device->lun);
 885
 886                         /*
 887                          *      If the target container doesn't exist, it may have
 888                          *      been newly created
 889                          */
 890                         if (fsa_dev_ptr->valid[cid] == 0) {
 891                                 switch (scsicmd->cmnd[0]) {
 892                                 case INQUIRY:
 893                                 case READ_CAPACITY:
 894                                 case TEST_UNIT_READY:
 895                                         spin_unlock_irq(host->host_lock);
 896                                         probe_container(dev, cid);
 897                                         spin_lock_irq(host->host_lock);
 898                                         if (fsa_dev_ptr->valid[cid] == 0) {
 899                                                 scsicmd->result = DID_NO_CONNECT << 16;
 900                                                 __aac_io_done(scsicmd);
 901                                                 return 0;
 902                                         }
 903                                 default:
 904                                         break;
 905                                 }
 906                         }
 907                         /*
 908                          *      If the target container still doesn't exist,
 909                          *      return failure
 910                          */
 911                         if (fsa_dev_ptr->valid[cid] == 0) {
 912                                 scsicmd->result = DID_BAD_TARGET << 16;
 913                                 __aac_io_done(scsicmd);
 914                                 return -1;
 915                         }
 916                 } else {  /* check for physical non-dasd devices */
 917                         if(dev->nondasd_support == 1){
 918                                 return aac_send_srb_fib(scsicmd);
 919                         } else {
 920                                 scsicmd->result = DID_NO_CONNECT << 16;
 921                                 __aac_io_done(scsicmd);
 922                                 return 0;
 923                         }
 924                 }
 925         }
 926         /*
 927          * else Command for the controller itself
 928          */
 929         else if ((scsicmd->cmnd[0] != INQUIRY) &&       /* only INQUIRY & TUR cmnd supported for controller */
 930                 (scsicmd->cmnd[0] != TEST_UNIT_READY))
 931         {
 932                 dprintk((KERN_WARNING "Only INQUIRY & TUR command supported for controller, rcvd = 0x%x.\n", scsicmd->cmnd[0]));
 933                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
 934                 set_sense((u8 *) &sense_data[cid],
 935                             SENKEY_ILLEGAL,
 936                             SENCODE_INVALID_COMMAND,
 937                             ASENCODE_INVALID_COMMAND, 0, 0, 0, 0);
 938                 __aac_io_done(scsicmd);
 939                 return -1;
 940         }
 941
 942
 943         /* Handle commands here that don't really require going out to the adapter */
 944         switch (scsicmd->cmnd[0]) {
 945         case INQUIRY:
 946         {
 947                 struct inquiry_data *inq_data_ptr;
 948
 949                 dprintk((KERN_DEBUG "INQUIRY command, ID: %d.\n", scsicmd->device->id));
 950                 inq_data_ptr = (struct inquiry_data *)scsicmd->request_buffer;
 951                 memset(inq_data_ptr, 0, sizeof (struct inquiry_data));
 952
 953                 inq_data_ptr->inqd_ver = 2;     /* claim compliance to SCSI-2 */
 954                 inq_data_ptr->inqd_dtq = 0x80;  /* set RMB bit to one indicating that the medium is removable */
 955                 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 */
 956                 inq_data_ptr->inqd_len = 31;
 957                 /*Format for "pad2" is  RelAdr | WBus32 | WBus16 |  Sync  | Linked |Reserved| CmdQue | SftRe */
 958                 inq_data_ptr->inqd_pad2= 0x32 ;  /*WBus16|Sync|CmdQue */
 959                 /*
 960                  *      Set the Vendor, Product, and Revision Level
 961                  *      see: <vendor>.c i.e. aac.c
 962                  */
 963                 setinqstr(cardtype, (void *) (inq_data_ptr->inqd_vid), fsa_dev_ptr->type[cid]);
 964                 if (scsicmd->device->id == host->this_id)
 965                         inq_data_ptr->inqd_pdt = INQD_PDT_PROC; /* Processor device */
 966                 else
 967                         inq_data_ptr->inqd_pdt = INQD_PDT_DA;   /* Direct/random access device */
 968                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
 969                 __aac_io_done(scsicmd);
 970                 return 0;
 971         }
 972         case READ_CAPACITY:
 973         {
 974                 int capacity;
 975                 char *cp;
 976
 977                 dprintk((KERN_DEBUG "READ CAPACITY command.\n"));
 978                 capacity = fsa_dev_ptr->size[cid] - 1;
 979                 cp = scsicmd->request_buffer;
 980                 cp[0] = (capacity >> 24) & 0xff;
 981                 cp[1] = (capacity >> 16) & 0xff;
 982                 cp[2] = (capacity >> 8) & 0xff;
 983                 cp[3] = (capacity >> 0) & 0xff;
 984                 cp[4] = 0;
 985                 cp[5] = 0;
 986                 cp[6] = 2;
 987                 cp[7] = 0;
 988
 989                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
 990                 __aac_io_done(scsicmd);
 991
 992                 return 0;
 993         }
 994
 995         case MODE_SENSE:
 996         {
 997                 char *mode_buf;
 998
 999                 dprintk((KERN_DEBUG "MODE SENSE command.\n"));
1000                 mode_buf = scsicmd->request_buffer;
1001                 mode_buf[0] = 3;        /* Mode data length */
1002                 mode_buf[1] = 0;        /* Medium type - default */
1003                 mode_buf[2] = 0;        /* Device-specific param, bit 8: 0/1 = write enabled/protected */
1004                 mode_buf[3] = 0;        /* Block descriptor length */
1005
1006                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1007                 __aac_io_done(scsicmd);
1008
1009                 return 0;
1010         }
1011         case MODE_SENSE_10:
1012         {
1013                 char *mode_buf;
1014
1015                 dprintk((KERN_DEBUG "MODE SENSE 10 byte command.\n"));
1016                 mode_buf = scsicmd->request_buffer;
1017                 mode_buf[0] = 0;        /* Mode data length (MSB) */
1018                 mode_buf[1] = 6;        /* Mode data length (LSB) */
1019                 mode_buf[2] = 0;        /* Medium type - default */
1020                 mode_buf[3] = 0;        /* Device-specific param, bit 8: 0/1 = write enabled/protected */
1021                 mode_buf[4] = 0;        /* reserved */
1022                 mode_buf[5] = 0;        /* reserved */
1023                 mode_buf[6] = 0;        /* Block descriptor length (MSB) */
1024                 mode_buf[7] = 0;        /* Block descriptor length (LSB) */
1025
1026                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1027                 __aac_io_done(scsicmd);
1028
1029                 return 0;
1030         }
1031         case REQUEST_SENSE:
1032                 dprintk((KERN_DEBUG "REQUEST SENSE command.\n"));
1033                 memcpy(scsicmd->sense_buffer, &sense_data[cid], sizeof (struct sense_data));
1034                 memset(&sense_data[cid], 0, sizeof (struct sense_data));
1035                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1036                 __aac_io_done(scsicmd);
1037                 return (0);
1038
1039         case ALLOW_MEDIUM_REMOVAL:
1040                 dprintk((KERN_DEBUG "LOCK command.\n"));
1041                 if (scsicmd->cmnd[4])
1042                         fsa_dev_ptr->locked[cid] = 1;
1043                 else
1044                         fsa_dev_ptr->locked[cid] = 0;
1045
1046                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1047                 __aac_io_done(scsicmd);
1048                 return 0;
1049         /*
1050          *      These commands are all No-Ops
1051          */
1052         case TEST_UNIT_READY:
1053         case RESERVE:
1054         case RELEASE:
1055         case REZERO_UNIT:
1056         case REASSIGN_BLOCKS:
1057         case SEEK_10:
1058         case START_STOP:
1059                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1060                 __aac_io_done(scsicmd);
1061                 return (0);
1062         }
1063
1064         switch (scsicmd->cmnd[0])
1065         {
1066                 case READ_6:
1067                 case READ_10:
1068                         /*
1069                          *      Hack to keep track of ordinal number of the device that
1070                          *      corresponds to a container. Needed to convert
1071                          *      containers to /dev/sd device names
1072                          */
1073
1074                         spin_unlock_irq(host->host_lock);
1075                         if  (scsicmd->request->rq_disk)
1076                                 memcpy(fsa_dev_ptr->devname[cid],
1077                                         scsicmd->request->rq_disk->disk_name,
1078                                         8);
1079
1080                         ret = aac_read(scsicmd, cid);
1081                         spin_lock_irq(host->host_lock);
1082                         return ret;
1083
1084                 case WRITE_6:
1085                 case WRITE_10:
1086                         spin_unlock_irq(host->host_lock);
1087                         ret = aac_write(scsicmd, cid);
1088                         spin_lock_irq(host->host_lock);
1089                         return ret;
1090                 default:
1091                         /*
1092                          *      Unhandled commands
1093                          */
1094                         printk(KERN_WARNING "Unhandled SCSI Command: 0x%x.\n", scsicmd->cmnd[0]);
1095                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1096                         set_sense((u8 *) &sense_data[cid],
1097                                 SENKEY_ILLEGAL, SENCODE_INVALID_COMMAND,
1098                         ASENCODE_INVALID_COMMAND, 0, 0, 0, 0);
1099                         __aac_io_done(scsicmd);
1100                         return -1;
1101         }
1102 }
1103
1104 static int query_disk(struct aac_dev *dev, void *arg)
1105 {
1106         struct aac_query_disk qd;
1107         struct fsa_scsi_hba *fsa_dev_ptr;
1108
1109         fsa_dev_ptr = &(dev->fsa_dev);
1110         if (copy_from_user(&qd, arg, sizeof (struct aac_query_disk)))
1111                 return -EFAULT;
1112         if (qd.cnum == -1)
1113                 qd.cnum = TARGET_LUN_TO_CONTAINER(qd.target, qd.lun);
1114         else if ((qd.bus == -1) && (qd.target == -1) && (qd.lun == -1))
1115         {
1116                 if (qd.cnum < 0 || qd.cnum >= MAXIMUM_NUM_CONTAINERS)
1117                         return -EINVAL;
1118                 qd.instance = dev->scsi_host_ptr->host_no;
1119                 qd.bus = 0;
1120                 qd.target = CONTAINER_TO_TARGET(qd.cnum);
1121                 qd.lun = CONTAINER_TO_LUN(qd.cnum);
1122         }
1123         else return -EINVAL;
1124
1125         qd.valid = fsa_dev_ptr->valid[qd.cnum];
1126         qd.locked = fsa_dev_ptr->locked[qd.cnum];
1127         qd.deleted = fsa_dev_ptr->deleted[qd.cnum];
1128
1129         if (fsa_dev_ptr->devname[qd.cnum][0] == '\0')
1130                 qd.unmapped = 1;
1131         else
1132                 qd.unmapped = 0;
1133
1134         strlcpy(qd.name, fsa_dev_ptr->devname[qd.cnum], sizeof(qd.name));
1135
1136         if (copy_to_user(arg, &qd, sizeof (struct aac_query_disk)))
1137                 return -EFAULT;
1138         return 0;
1139 }
1140
1141 static int force_delete_disk(struct aac_dev *dev, void *arg)
1142 {
1143         struct aac_delete_disk dd;
1144         struct fsa_scsi_hba *fsa_dev_ptr;
1145
1146         fsa_dev_ptr = &(dev->fsa_dev);
1147
1148         if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
1149                 return -EFAULT;
1150
1151         if (dd.cnum >= MAXIMUM_NUM_CONTAINERS)
1152                 return -EINVAL;
1153         /*
1154          *      Mark this container as being deleted.
1155          */
1156         fsa_dev_ptr->deleted[dd.cnum] = 1;
1157         /*
1158          *      Mark the container as no longer valid
1159          */
1160         fsa_dev_ptr->valid[dd.cnum] = 0;
1161         return 0;
1162 }
1163
1164 static int delete_disk(struct aac_dev *dev, void *arg)
1165 {
1166         struct aac_delete_disk dd;
1167         struct fsa_scsi_hba *fsa_dev_ptr;
1168
1169         fsa_dev_ptr = &(dev->fsa_dev);
1170
1171         if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
1172                 return -EFAULT;
1173
1174         if (dd.cnum >= MAXIMUM_NUM_CONTAINERS)
1175                 return -EINVAL;
1176         /*
1177          *      If the container is locked, it can not be deleted by the API.
1178          */
1179         if (fsa_dev_ptr->locked[dd.cnum])
1180                 return -EBUSY;
1181         else {
1182                 /*
1183                  *      Mark the container as no longer being valid.
1184                  */
1185                 fsa_dev_ptr->valid[dd.cnum] = 0;
1186                 fsa_dev_ptr->devname[dd.cnum][0] = '\0';
1187                 return 0;
1188         }
1189 }
1190
1191 int aac_dev_ioctl(struct aac_dev *dev, int cmd, void *arg)
1192 {
1193         switch (cmd) {
1194         case FSACTL_QUERY_DISK:
1195                 return query_disk(dev, arg);
1196         case FSACTL_DELETE_DISK:
1197                 return delete_disk(dev, arg);
1198         case FSACTL_FORCE_DELETE_DISK:
1199                 return force_delete_disk(dev, arg);
1200         case 2131:
1201                 return aac_get_containers(dev);
1202         default:
1203                 return -ENOTTY;
1204         }
1205 }
1206
1207 /**
1208  *
1209  * aac_srb_callback
1210  * @context: the context set in the fib - here it is scsi cmd
1211  * @fibptr: pointer to the fib
1212  *
1213  * Handles the completion of a scsi command to a non dasd device
1214  *
1215  */
1216
1217 static void aac_srb_callback(void *context, struct fib * fibptr)
1218 {
1219         struct aac_dev *dev;
1220         struct aac_srb_reply *srbreply;
1221         struct scsi_cmnd *scsicmd;
1222
1223         scsicmd = (struct scsi_cmnd *) context;
1224         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1225
1226         if (fibptr == NULL)
1227                 BUG();
1228
1229         srbreply = (struct aac_srb_reply *) fib_data(fibptr);
1230
1231         scsicmd->sense_buffer[0] = '\0';  // initialize sense valid flag to false
1232         // calculate resid for sg
1233         scsicmd->resid = scsicmd->request_bufflen - srbreply->data_xfer_length;
1234
1235         if(scsicmd->use_sg)
1236                 pci_unmap_sg(dev->pdev,
1237                         (struct scatterlist *)scsicmd->buffer,
1238                         scsicmd->use_sg,
1239                         scsicmd->sc_data_direction);
1240         else if(scsicmd->request_bufflen)
1241                 pci_unmap_single(dev->pdev, (ulong)scsicmd->SCp.ptr, scsicmd->request_bufflen,
1242                         scsicmd->sc_data_direction);
1243
1244         /*
1245          * First check the fib status
1246          */
1247
1248         if (le32_to_cpu(srbreply->status) != ST_OK){
1249                 int len;
1250                 printk(KERN_WARNING "aac_srb_callback: srb failed, status = %d\n", le32_to_cpu(srbreply->status));
1251                 len = (srbreply->sense_data_size > sizeof(scsicmd->sense_buffer))?
1252                                 sizeof(scsicmd->sense_buffer):srbreply->sense_data_size;
1253                 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1254                 memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
1255         }
1256
1257         /*
1258          * Next check the srb status
1259          */
1260         switch( (le32_to_cpu(srbreply->srb_status))&0x3f){
1261         case SRB_STATUS_ERROR_RECOVERY:
1262         case SRB_STATUS_PENDING:
1263         case SRB_STATUS_SUCCESS:
1264                 if(scsicmd->cmnd[0] == INQUIRY ){
1265                         u8 b;
1266                         u8 b1;
1267                         /* We can't expose disk devices because we can't tell whether they
1268                          * are the raw container drives or stand alone drives.  If they have
1269                          * the removable bit set then we should expose them though.
1270                          */
1271                         b = (*(u8*)scsicmd->buffer)&0x1f;
1272                         b1 = ((u8*)scsicmd->buffer)[1];
1273                         if( b==TYPE_TAPE || b==TYPE_WORM || b==TYPE_ROM || b==TYPE_MOD|| b==TYPE_MEDIUM_CHANGER
1274                                         || (b==TYPE_DISK && (b1&0x80)) ){
1275                                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
1276                         } else {
1277                                 scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8;
1278                         }
1279                 } else {
1280                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
1281                 }
1282                 break;
1283         case SRB_STATUS_DATA_OVERRUN:
1284                 switch(scsicmd->cmnd[0]){
1285                 case  READ_6:
1286                 case  WRITE_6:
1287                 case  READ_10:
1288                 case  WRITE_10:
1289                 case  READ_12:
1290                 case  WRITE_12:
1291                         if(le32_to_cpu(srbreply->data_xfer_length) < scsicmd->underflow ) {
1292                                 printk(KERN_WARNING"aacraid: SCSI CMD underflow\n");
1293                         } else {
1294                                 printk(KERN_WARNING"aacraid: SCSI CMD Data Overrun\n");
1295                         }
1296                         scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
1297                         break;
1298                 case INQUIRY: {
1299                         u8 b;
1300                         u8 b1;
1301                         /* We can't expose disk devices because we can't tell whether they
1302                         * are the raw container drives or stand alone drives
1303                         */
1304                         b = (*(u8*)scsicmd->buffer)&0x0f;
1305                         b1 = ((u8*)scsicmd->buffer)[1];
1306                         if( b==TYPE_TAPE || b==TYPE_WORM || b==TYPE_ROM || b==TYPE_MOD|| b==TYPE_MEDIUM_CHANGER
1307                                         || (b==TYPE_DISK && (b1&0x80)) ){
1308                                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
1309                         } else {
1310                                 scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8;
1311                         }
1312                         break;
1313                 }
1314                 default:
1315                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
1316                         break;
1317                 }
1318                 break;
1319         case SRB_STATUS_ABORTED:
1320                 scsicmd->result = DID_ABORT << 16 | ABORT << 8;
1321                 break;
1322         case SRB_STATUS_ABORT_FAILED:
1323                 // Not sure about this one - but assuming the hba was trying to abort for some reason
1324                 scsicmd->result = DID_ERROR << 16 | ABORT << 8;
1325                 break;
1326         case SRB_STATUS_PARITY_ERROR:
1327                 scsicmd->result = DID_PARITY << 16 | MSG_PARITY_ERROR << 8;
1328                 break;
1329         case SRB_STATUS_NO_DEVICE:
1330         case SRB_STATUS_INVALID_PATH_ID:
1331         case SRB_STATUS_INVALID_TARGET_ID:
1332         case SRB_STATUS_INVALID_LUN:
1333         case SRB_STATUS_SELECTION_TIMEOUT:
1334                 scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8;
1335                 break;
1336
1337         case SRB_STATUS_COMMAND_TIMEOUT:
1338         case SRB_STATUS_TIMEOUT:
1339                 scsicmd->result = DID_TIME_OUT << 16 | COMMAND_COMPLETE << 8;
1340                 break;
1341
1342         case SRB_STATUS_BUSY:
1343                 scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8;
1344                 break;
1345
1346         case SRB_STATUS_BUS_RESET:
1347                 scsicmd->result = DID_RESET << 16 | COMMAND_COMPLETE << 8;
1348                 break;
1349
1350         case SRB_STATUS_MESSAGE_REJECTED:
1351                 scsicmd->result = DID_ERROR << 16 | MESSAGE_REJECT << 8;
1352                 break;
1353         case SRB_STATUS_REQUEST_FLUSHED:
1354         case SRB_STATUS_ERROR:
1355         case SRB_STATUS_INVALID_REQUEST:
1356         case SRB_STATUS_REQUEST_SENSE_FAILED:
1357         case SRB_STATUS_NO_HBA:
1358         case SRB_STATUS_UNEXPECTED_BUS_FREE:
1359         case SRB_STATUS_PHASE_SEQUENCE_FAILURE:
1360         case SRB_STATUS_BAD_SRB_BLOCK_LENGTH:
1361         case SRB_STATUS_DELAYED_RETRY:
1362         case SRB_STATUS_BAD_FUNCTION:
1363         case SRB_STATUS_NOT_STARTED:
1364         case SRB_STATUS_NOT_IN_USE:
1365         case SRB_STATUS_FORCE_ABORT:
1366         case SRB_STATUS_DOMAIN_VALIDATION_FAIL:
1367         default:
1368 #ifdef AAC_DETAILED_STATUS_INFO
1369                 printk("aacraid: SRB ERROR(%u) %s scsi cmd 0x%x - scsi status 0x%x\n",le32_to_cpu(srbreply->srb_status&0x3f),aac_get_status_string(le32_to_cpu(srbreply->srb_status)), scsicmd->cmnd[0], le32_to_cpu(srbreply->scsi_status) );
1370 #endif
1371                 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
1372                 break;
1373         }
1374         if (le32_to_cpu(srbreply->scsi_status) == 0x02 ){  // Check Condition
1375                 int len;
1376                 scsicmd->result |= SAM_STAT_CHECK_CONDITION;
1377                 len = (srbreply->sense_data_size > sizeof(scsicmd->sense_buffer))?
1378                                 sizeof(scsicmd->sense_buffer):srbreply->sense_data_size;
1379                 printk(KERN_WARNING "aac_srb_callback: check condition, status = %d len=%d\n", le32_to_cpu(srbreply->status), len);
1380                 memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
1381
1382         }
1383         /*
1384          * OR in the scsi status (already shifted up a bit)
1385          */
1386         scsicmd->result |= le32_to_cpu(srbreply->scsi_status);
1387
1388         fib_complete(fibptr);
1389         fib_free(fibptr);
1390         aac_io_done(scsicmd);
1391 }
1392
1393 /**
1394  *
1395  * aac_send_scb_fib
1396  * @scsicmd: the scsi command block
1397  *
1398  * This routine will form a FIB and fill in the aac_srb from the
1399  * scsicmd passed in.
1400  */
1401
1402 static int aac_send_srb_fib(struct scsi_cmnd* scsicmd)
1403 {
1404         struct fib* cmd_fibcontext;
1405         struct aac_dev* dev;
1406         int status;
1407         struct aac_srb *srbcmd;
1408         u16 fibsize;
1409         u32 flag;
1410         u32 timeout;
1411
1412         if( scsicmd->device->id > 15 || scsicmd->device->lun > 7) {
1413                 scsicmd->result = DID_NO_CONNECT << 16;
1414                 __aac_io_done(scsicmd);
1415                 return 0;
1416         }
1417
1418         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1419         switch(scsicmd->sc_data_direction){
1420         case DMA_TO_DEVICE:
1421                 flag = SRB_DataOut;
1422                 break;
1423         case DMA_BIDIRECTIONAL:
1424                 flag = SRB_DataIn | SRB_DataOut;
1425                 break;
1426         case DMA_FROM_DEVICE:
1427                 flag = SRB_DataIn;
1428                 break;
1429         case DMA_NONE:
1430         default:        /* shuts up some versions of gcc */
1431                 flag = SRB_NoDataXfer;
1432                 break;
1433         }
1434
1435
1436         /*
1437          *      Allocate and initialize a Fib then setup a BlockWrite command
1438          */
1439         if (!(cmd_fibcontext = fib_alloc(dev))) {
1440                 scsicmd->result = DID_ERROR << 16;
1441                 __aac_io_done(scsicmd);
1442                 return -1;
1443         }
1444         fib_init(cmd_fibcontext);
1445
1446         srbcmd = (struct aac_srb*) fib_data(cmd_fibcontext);
1447         srbcmd->function = cpu_to_le32(SRBF_ExecuteScsi);
1448         srbcmd->channel  = cpu_to_le32(aac_logical_to_phys(scsicmd->device->channel));
1449         srbcmd->target   = cpu_to_le32(scsicmd->device->id);
1450         srbcmd->lun      = cpu_to_le32(scsicmd->device->lun);
1451         srbcmd->flags    = cpu_to_le32(flag);
1452         timeout = (scsicmd->timeout-jiffies)/HZ;
1453         if(timeout == 0){
1454                 timeout = 1;
1455         }
1456         srbcmd->timeout  = cpu_to_le32(timeout);  // timeout in seconds
1457         srbcmd->retry_limit =cpu_to_le32(0); // Obsolete parameter
1458         srbcmd->cdb_size = cpu_to_le32(scsicmd->cmd_len);
1459
1460         if( dev->pae_support ==1 ) {
1461                 aac_build_sg64(scsicmd, (struct sgmap64*) &srbcmd->sg);
1462                 srbcmd->count = cpu_to_le32(scsicmd->request_bufflen);
1463
1464                 memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
1465                 memcpy(srbcmd->cdb, scsicmd->cmnd, scsicmd->cmd_len);
1466                 /*
1467                  *      Build Scatter/Gather list
1468                  */
1469                 fibsize = sizeof (struct aac_srb) + (((srbcmd->sg.count & 0xff) - 1) * sizeof (struct sgentry64));
1470
1471                 /*
1472                  *      Now send the Fib to the adapter
1473                  */
1474                 status = fib_send(ScsiPortCommand64, cmd_fibcontext, fibsize, FsaNormal, 0, 1,
1475                                   (fib_callback) aac_srb_callback, (void *) scsicmd);
1476         } else {
1477                 aac_build_sg(scsicmd, (struct sgmap*)&srbcmd->sg);
1478                 srbcmd->count = cpu_to_le32(scsicmd->request_bufflen);
1479
1480                 memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
1481                 memcpy(srbcmd->cdb, scsicmd->cmnd, scsicmd->cmd_len);
1482                 /*
1483                  *      Build Scatter/Gather list
1484                  */
1485                 fibsize = sizeof (struct aac_srb) + (((srbcmd->sg.count & 0xff) - 1) * sizeof (struct sgentry));
1486
1487                 /*
1488                  *      Now send the Fib to the adapter
1489                  */
1490                 status = fib_send(ScsiPortCommand, cmd_fibcontext, fibsize, FsaNormal, 0, 1,
1491                                   (fib_callback) aac_srb_callback, (void *) scsicmd);
1492         }
1493         /*
1494          *      Check that the command queued to the controller
1495          */
1496         if (status == -EINPROGRESS){
1497                 return 0;
1498         }
1499
1500         printk(KERN_WARNING "aac_srb: fib_send failed with status: %d\n", status);
1501         /*
1502          *      For some reason, the Fib didn't queue, return QUEUE_FULL
1503          */
1504         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_TASK_SET_FULL;
1505         __aac_io_done(scsicmd);
1506
1507         fib_complete(cmd_fibcontext);
1508         fib_free(cmd_fibcontext);
1509
1510         return -1;
1511 }
1512
1513 static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* psg)
1514 {
1515         struct aac_dev *dev;
1516         unsigned long byte_count = 0;
1517
1518         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1519         // Get rid of old data
1520         psg->count = cpu_to_le32(0);
1521         psg->sg[0].addr = cpu_to_le32(0);
1522         psg->sg[0].count = cpu_to_le32(0);
1523         if (scsicmd->use_sg) {
1524                 struct scatterlist *sg;
1525                 int i;
1526                 int sg_count;
1527                 sg = (struct scatterlist *) scsicmd->request_buffer;
1528
1529                 sg_count = pci_map_sg(dev->pdev, sg, scsicmd->use_sg,
1530                         scsicmd->sc_data_direction);
1531                 psg->count = cpu_to_le32(sg_count);
1532
1533                 byte_count = 0;
1534
1535                 for (i = 0; i < sg_count; i++) {
1536                         psg->sg[i].addr = cpu_to_le32(sg_dma_address(sg));
1537                         psg->sg[i].count = cpu_to_le32(sg_dma_len(sg));
1538                         byte_count += sg_dma_len(sg);
1539                         sg++;
1540                 }
1541                 /* hba wants the size to be exact */
1542                 if(byte_count > scsicmd->request_bufflen){
1543                         psg->sg[i-1].count -= (byte_count - scsicmd->request_bufflen);
1544                         byte_count = scsicmd->request_bufflen;
1545                 }
1546                 /* Check for command underflow */
1547                 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
1548                         printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
1549                                         byte_count, scsicmd->underflow);
1550                 }
1551         }
1552         else if(scsicmd->request_bufflen) {
1553                 dma_addr_t addr;
1554                 addr = pci_map_single(dev->pdev,
1555                                 scsicmd->request_buffer,
1556                                 scsicmd->request_bufflen,
1557                                 scsicmd->sc_data_direction);
1558                 psg->count = cpu_to_le32(1);
1559                 psg->sg[0].addr = cpu_to_le32(addr);
1560                 psg->sg[0].count = cpu_to_le32(scsicmd->request_bufflen);
1561                 scsicmd->SCp.ptr = (char *)(ulong)addr;
1562                 byte_count = scsicmd->request_bufflen;
1563         }
1564         return byte_count;
1565 }
1566
1567
1568 static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* psg)
1569 {
1570         struct aac_dev *dev;
1571         unsigned long byte_count = 0;
1572         u64 le_addr;
1573
1574         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1575         // Get rid of old data
1576         psg->count = cpu_to_le32(0);
1577         psg->sg[0].addr[0] = cpu_to_le32(0);
1578         psg->sg[0].addr[1] = cpu_to_le32(0);
1579         psg->sg[0].count = cpu_to_le32(0);
1580         if (scsicmd->use_sg) {
1581                 struct scatterlist *sg;
1582                 int i;
1583                 int sg_count;
1584                 sg = (struct scatterlist *) scsicmd->request_buffer;
1585
1586                 sg_count = pci_map_sg(dev->pdev, sg, scsicmd->use_sg,
1587                         scsicmd->sc_data_direction);
1588                 psg->count = cpu_to_le32(sg_count);
1589
1590                 byte_count = 0;
1591
1592                 for (i = 0; i < sg_count; i++) {
1593                         le_addr = cpu_to_le64(sg_dma_address(sg));
1594                         psg->sg[i].addr[1] = (u32)(le_addr>>32);
1595                         psg->sg[i].addr[0] = (u32)(le_addr & 0xffffffff);
1596                         psg->sg[i].count = cpu_to_le32(sg_dma_len(sg));
1597                         byte_count += sg_dma_len(sg);
1598                         sg++;
1599                 }
1600                 /* hba wants the size to be exact */
1601                 if(byte_count > scsicmd->request_bufflen){
1602                         psg->sg[i-1].count -= (byte_count - scsicmd->request_bufflen);
1603                         byte_count = scsicmd->request_bufflen;
1604                 }
1605                 /* Check for command underflow */
1606                 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
1607                         printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
1608                                         byte_count, scsicmd->underflow);
1609                 }
1610         }
1611         else if(scsicmd->request_bufflen) {
1612                 dma_addr_t addr;
1613                 addr = pci_map_single(dev->pdev,
1614                                 scsicmd->request_buffer,
1615                                 scsicmd->request_bufflen,
1616                                 scsicmd->sc_data_direction);
1617                 psg->count = cpu_to_le32(1);
1618                 le_addr = cpu_to_le64(addr);
1619                 psg->sg[0].addr[1] = (u32)(le_addr>>32);
1620                 psg->sg[0].addr[0] = (u32)(le_addr & 0xffffffff);
1621                 psg->sg[0].count = cpu_to_le32(scsicmd->request_bufflen);
1622                 scsicmd->SCp.ptr = (char *)(ulong)addr;
1623                 byte_count = scsicmd->request_bufflen;
1624         }
1625         return byte_count;
1626 }
1627
1628 #ifdef AAC_DETAILED_STATUS_INFO
1629
1630 struct aac_srb_status_info {
1631         u32     status;
1632         char    *str;
1633 };
1634
1635
1636 static struct aac_srb_status_info srb_status_info[] = {
1637         { SRB_STATUS_PENDING,           "Pending Status"},
1638         { SRB_STATUS_SUCCESS,           "Success"},
1639         { SRB_STATUS_ABORTED,           "Aborted Command"},
1640         { SRB_STATUS_ABORT_FAILED,      "Abort Failed"},
1641         { SRB_STATUS_ERROR,             "Error Event"},
1642         { SRB_STATUS_BUSY,              "Device Busy"},
1643         { SRB_STATUS_INVALID_REQUEST,   "Invalid Request"},
1644         { SRB_STATUS_INVALID_PATH_ID,   "Invalid Path ID"},
1645         { SRB_STATUS_NO_DEVICE,         "No Device"},
1646         { SRB_STATUS_TIMEOUT,           "Timeout"},
1647         { SRB_STATUS_SELECTION_TIMEOUT, "Selection Timeout"},
1648         { SRB_STATUS_COMMAND_TIMEOUT,   "Command Timeout"},
1649         { SRB_STATUS_MESSAGE_REJECTED,  "Message Rejected"},
1650         { SRB_STATUS_BUS_RESET,         "Bus Reset"},
1651         { SRB_STATUS_PARITY_ERROR,      "Parity Error"},
1652         { SRB_STATUS_REQUEST_SENSE_FAILED,"Request Sense Failed"},
1653         { SRB_STATUS_NO_HBA,            "No HBA"},
1654         { SRB_STATUS_DATA_OVERRUN,      "Data Overrun/Data Underrun"},
1655         { SRB_STATUS_UNEXPECTED_BUS_FREE,"Unexpected Bus Free"},
1656         { SRB_STATUS_PHASE_SEQUENCE_FAILURE,"Phase Error"},
1657         { SRB_STATUS_BAD_SRB_BLOCK_LENGTH,"Bad Srb Block Length"},
1658         { SRB_STATUS_REQUEST_FLUSHED,   "Request Flushed"},
1659         { SRB_STATUS_DELAYED_RETRY,     "Delayed Retry"},
1660         { SRB_STATUS_INVALID_LUN,       "Invalid LUN"},
1661         { SRB_STATUS_INVALID_TARGET_ID, "Invalid TARGET ID"},
1662         { SRB_STATUS_BAD_FUNCTION,      "Bad Function"},
1663         { SRB_STATUS_ERROR_RECOVERY,    "Error Recovery"},
1664         { SRB_STATUS_NOT_STARTED,       "Not Started"},
1665         { SRB_STATUS_NOT_IN_USE,        "Not In Use"},
1666         { SRB_STATUS_FORCE_ABORT,       "Force Abort"},
1667         { SRB_STATUS_DOMAIN_VALIDATION_FAIL,"Domain Validation Failure"},
1668         { 0xff,                         "Unknown Error"}
1669 };
1670
1671 char *aac_get_status_string(u32 status)
1672 {
1673         int i;
1674
1675         for(i=0; i < (sizeof(srb_status_info)/sizeof(struct aac_srb_status_info)); i++ ){
1676                 if(srb_status_info[i].status == status){
1677                         return srb_status_info[i].str;
1678                 }
1679         }
1680
1681         return "Bad Status Code";
1682 }
1683
1684 #endif