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 struct sense_data {
 135         u8 error_code;          /* 70h (current errors), 71h(deferred errors) */
 136         u8 valid:1;             /* A valid bit of one indicates that the information  */
 137                                 /* field contains valid information as defined in the
 138                                  * SCSI-2 Standard.
 139                                  */
 140         u8 segment_number;      /* Only used for COPY, COMPARE, or COPY AND VERIFY Commands */
 141         u8 sense_key:4;         /* Sense Key */
 142         u8 reserved:1;
 143         u8 ILI:1;               /* Incorrect Length Indicator */
 144         u8 EOM:1;               /* End Of Medium - reserved for random access devices */
 145         u8 filemark:1;          /* Filemark - reserved for random access devices */
 146
 147         u8 information[4];      /* for direct-access devices, contains the unsigned
 148                                  * logical block address or residue associated with
 149                                  * the sense key
 150                                  */
 151         u8 add_sense_len;       /* number of additional sense bytes to follow this field */
 152         u8 cmnd_info[4];        /* not used */
 153         u8 ASC;                 /* Additional Sense Code */
 154         u8 ASCQ;                /* Additional Sense Code Qualifier */
 155         u8 FRUC;                /* Field Replaceable Unit Code - not used */
 156         u8 bit_ptr:3;           /* indicates which byte of the CDB or parameter data
 157                                  * was in error
 158                                  */
 159         u8 BPV:1;               /* bit pointer valid (BPV): 1- indicates that
 160                                  * the bit_ptr field has valid value
 161                                  */
 162         u8 reserved2:2;
 163         u8 CD:1;                /* command data bit: 1- illegal parameter in CDB.
 164                                  * 0- illegal parameter in data.
 165                                  */
 166         u8 SKSV:1;
 167         u8 field_ptr[2];        /* byte of the CDB or parameter data in error */
 168 };
 169
 170 /*
 171  *              M O D U L E   G L O B A L S
 172  */
 173
 174 static struct sense_data sense_data[MAXIMUM_NUM_CONTAINERS];
 175 static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* sgmap);
 176 static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* psg);
 177 static int aac_send_srb_fib(struct scsi_cmnd* scsicmd);
 178 #ifdef AAC_DETAILED_STATUS_INFO
 179 static char *aac_get_status_string(u32 status);
 180 #endif
 181
 182 /*
 183  *      Non dasd selection is handled entirely in aachba now
 184  */
 185
 186 MODULE_PARM(nondasd, "i");
 187 MODULE_PARM_DESC(nondasd, "Control scanning of hba for nondasd devices. 0=off, 1=on");
 188 MODULE_PARM(dacmode, "i");
 189 MODULE_PARM_DESC(dacmode, "Control whether dma addressing is using 64 bit DAC. 0=off, 1=on");
 190 MODULE_PARM(commit, "i");
 191 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");
 192
 193 static int nondasd = -1;
 194 static int dacmode = -1;
 195
 196 /**
 197  *      aac_get_containers      -       list containers
 198  *      @common: adapter to probe
 199  *
 200  *      Make a list of all containers on this controller
 201  */
 202 int aac_get_containers(struct aac_dev *dev)
 203 {
 204         struct fsa_scsi_hba *fsa_dev_ptr;
 205         u32 index;
 206         int status = 0;
 207         struct aac_query_mount *dinfo;
 208         struct aac_mount *dresp;
 209         struct fib * fibptr;
 210         unsigned instance;
 211
 212         fsa_dev_ptr = &(dev->fsa_dev);
 213         instance = dev->scsi_host_ptr->unique_id;
 214
 215         if (!(fibptr = fib_alloc(dev)))
 216                 return -ENOMEM;
 217
 218         for (index = 0; index < MAXIMUM_NUM_CONTAINERS; index++) {
 219                 fib_init(fibptr);
 220                 dinfo = (struct aac_query_mount *) fib_data(fibptr);
 221
 222                 dinfo->command = cpu_to_le32(VM_NameServe);
 223                 dinfo->count = cpu_to_le32(index);
 224                 dinfo->type = cpu_to_le32(FT_FILESYS);
 225
 226                 status = fib_send(ContainerCommand,
 227                                     fibptr,
 228                                     sizeof (struct aac_query_mount),
 229                                     FsaNormal,
 230                                     1, 1,
 231                                     NULL, NULL);
 232                 if (status < 0 ) {
 233                         printk(KERN_WARNING "aac_get_containers: SendFIB failed.\n");
 234                         break;
 235                 }
 236                 dresp = (struct aac_mount *)fib_data(fibptr);
 237
 238                 if ((le32_to_cpu(dresp->status) == ST_OK) &&
 239                     (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE) &&
 240                     (le32_to_cpu(dresp->mnt[0].state) != FSCS_HIDDEN)) {
 241                         fsa_dev_ptr->valid[index] = 1;
 242                         fsa_dev_ptr->type[index] = le32_to_cpu(dresp->mnt[0].vol);
 243                         fsa_dev_ptr->size[index] = le32_to_cpu(dresp->mnt[0].capacity);
 244                         if (le32_to_cpu(dresp->mnt[0].state) & FSCS_READONLY)
 245                                     fsa_dev_ptr->ro[index] = 1;
 246                 }
 247                 fib_complete(fibptr);
 248                 /*
 249                  *      If there are no more containers, then stop asking.
 250                  */
 251                 if ((index + 1) >= le32_to_cpu(dresp->count)){
 252                         break;
 253                 }
 254         }
 255         fib_free(fibptr);
 256         return status;
 257 }
 258
 259 /**
 260  *      probe_container         -       query a logical volume
 261  *      @dev: device to query
 262  *      @cid: container identifier
 263  *
 264  *      Queries the controller about the given volume. The volume information
 265  *      is updated in the struct fsa_scsi_hba structure rather than returned.
 266  */
 267
 268 static int probe_container(struct aac_dev *dev, int cid)
 269 {
 270         struct fsa_scsi_hba *fsa_dev_ptr;
 271         int status;
 272         struct aac_query_mount *dinfo;
 273         struct aac_mount *dresp;
 274         struct fib * fibptr;
 275         unsigned instance;
 276
 277         fsa_dev_ptr = &(dev->fsa_dev);
 278         instance = dev->scsi_host_ptr->unique_id;
 279
 280         if (!(fibptr = fib_alloc(dev)))
 281                 return -ENOMEM;
 282
 283         fib_init(fibptr);
 284
 285         dinfo = (struct aac_query_mount *)fib_data(fibptr);
 286
 287         dinfo->command = cpu_to_le32(VM_NameServe);
 288         dinfo->count = cpu_to_le32(cid);
 289         dinfo->type = cpu_to_le32(FT_FILESYS);
 290
 291         status = fib_send(ContainerCommand,
 292                             fibptr,
 293                             sizeof(struct aac_query_mount),
 294                             FsaNormal,
 295                             1, 1,
 296                             NULL, NULL);
 297         if (status < 0) {
 298                 printk(KERN_WARNING "aacraid: probe_containers query failed.\n");
 299                 goto error;
 300         }
 301
 302         dresp = (struct aac_mount *) fib_data(fibptr);
 303
 304         if ((le32_to_cpu(dresp->status) == ST_OK) &&
 305             (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE) &&
 306             (le32_to_cpu(dresp->mnt[0].state) != FSCS_HIDDEN)) {
 307                 fsa_dev_ptr->valid[cid] = 1;
 308                 fsa_dev_ptr->type[cid] = le32_to_cpu(dresp->mnt[0].vol);
 309                 fsa_dev_ptr->size[cid] = le32_to_cpu(dresp->mnt[0].capacity);
 310                 if (le32_to_cpu(dresp->mnt[0].state) & FSCS_READONLY)
 311                         fsa_dev_ptr->ro[cid] = 1;
 312         }
 313
 314 error:
 315         fib_complete(fibptr);
 316         fib_free(fibptr);
 317
 318         return status;
 319 }
 320
 321 /* Local Structure to set SCSI inquiry data strings */
 322 struct scsi_inq {
 323         char vid[8];         /* Vendor ID */
 324         char pid[16];        /* Product ID */
 325         char prl[4];         /* Product Revision Level */
 326 };
 327
 328 /**
 329  *      InqStrCopy      -       string merge
 330  *      @a:     string to copy from
 331  *      @b:     string to copy to
 332  *
 333  *      Copy a String from one location to another
 334  *      without copying \0
 335  */
 336
 337 static void inqstrcpy(char *a, char *b)
 338 {
 339
 340         while(*a != (char)0)
 341                 *b++ = *a++;
 342 }
 343
 344 static char *container_types[] = {
 345         "None",
 346         "Volume",
 347         "Mirror",
 348         "Stripe",
 349         "RAID5",
 350         "SSRW",
 351         "SSRO",
 352         "Morph",
 353         "Legacy",
 354         "RAID4",
 355         "RAID10",
 356         "RAID00",
 357         "V-MIRRORS",
 358         "PSEUDO R4",
 359         "RAID50",
 360         "Unknown"
 361 };
 362
 363
 364
 365 /* Function: setinqstr
 366  *
 367  * Arguments: [1] pointer to void [1] int
 368  *
 369  * Purpose: Sets SCSI inquiry data strings for vendor, product
 370  * and revision level. Allows strings to be set in platform dependent
 371  * files instead of in OS dependent driver source.
 372  */
 373
 374 static void setinqstr(int devtype, void *data, int tindex)
 375 {
 376         struct scsi_inq *str;
 377         char *findit;
 378         struct aac_driver_ident *mp;
 379
 380         mp = aac_get_driver_ident(devtype);
 381
 382         str = (struct scsi_inq *)(data); /* cast data to scsi inq block */
 383
 384         inqstrcpy (mp->vname, str->vid);
 385         inqstrcpy (mp->model, str->pid); /* last six chars reserved for vol type */
 386
 387         findit = str->pid;
 388
 389         for ( ; *findit != ' '; findit++); /* walk till we find a space then incr by 1 */
 390                 findit++;
 391
 392         if (tindex < (sizeof(container_types)/sizeof(char *))){
 393                 inqstrcpy (container_types[tindex], findit);
 394         }
 395         inqstrcpy ("V1.0", str->prl);
 396 }
 397
 398 void set_sense(u8 *sense_buf, u8 sense_key, u8 sense_code,
 399                     u8 a_sense_code, u8 incorrect_length,
 400                     u8 bit_pointer, u16 field_pointer,
 401                     u32 residue)
 402 {
 403         sense_buf[0] = 0xF0;    /* Sense data valid, err code 70h (current error) */
 404         sense_buf[1] = 0;       /* Segment number, always zero */
 405
 406         if (incorrect_length) {
 407                 sense_buf[2] = sense_key | 0x20;/* Set ILI bit | sense key */
 408                 sense_buf[3] = BYTE3(residue);
 409                 sense_buf[4] = BYTE2(residue);
 410                 sense_buf[5] = BYTE1(residue);
 411                 sense_buf[6] = BYTE0(residue);
 412         } else
 413                 sense_buf[2] = sense_key;       /* Sense key */
 414
 415         if (sense_key == ILLEGAL_REQUEST)
 416                 sense_buf[7] = 10;      /* Additional sense length */
 417         else
 418                 sense_buf[7] = 6;       /* Additional sense length */
 419
 420         sense_buf[12] = sense_code;     /* Additional sense code */
 421         sense_buf[13] = a_sense_code;   /* Additional sense code qualifier */
 422         if (sense_key == ILLEGAL_REQUEST) {
 423                 sense_buf[15] = 0;
 424
 425                 if (sense_code == SENCODE_INVALID_PARAM_FIELD)
 426                         sense_buf[15] = 0x80;/* Std sense key specific field */
 427                 /* Illegal parameter is in the parameter block */
 428
 429                 if (sense_code == SENCODE_INVALID_CDB_FIELD)
 430                         sense_buf[15] = 0xc0;/* Std sense key specific field */
 431                 /* Illegal parameter is in the CDB block */
 432                 sense_buf[15] |= bit_pointer;
 433                 sense_buf[16] = field_pointer >> 8;     /* MSB */
 434                 sense_buf[17] = field_pointer;          /* LSB */
 435         }
 436 }
 437
 438 static void aac_io_done(struct scsi_cmnd * scsicmd)
 439 {
 440         unsigned long cpu_flags;
 441         struct Scsi_Host *host = scsicmd->device->host;
 442         spin_lock_irqsave(host->host_lock, cpu_flags);
 443         scsicmd->scsi_done(scsicmd);
 444         spin_unlock_irqrestore(host->host_lock, cpu_flags);
 445 }
 446
 447 static void __aac_io_done(struct scsi_cmnd * scsicmd)
 448 {
 449         scsicmd->scsi_done(scsicmd);
 450 }
 451
 452 int aac_get_adapter_info(struct aac_dev* dev)
 453 {
 454         struct fib* fibptr;
 455         struct aac_adapter_info* info;
 456         int rcode;
 457         u32 tmp;
 458         if (!(fibptr = fib_alloc(dev)))
 459                 return -ENOMEM;
 460
 461         fib_init(fibptr);
 462         info = (struct aac_adapter_info*) fib_data(fibptr);
 463
 464         memset(info,0,sizeof(struct aac_adapter_info));
 465
 466         rcode = fib_send(RequestAdapterInfo,
 467                         fibptr,
 468                         sizeof(struct aac_adapter_info),
 469                         FsaNormal,
 470                         1, 1,
 471                         NULL,
 472                         NULL);
 473
 474         memcpy(&dev->adapter_info, info, sizeof(struct aac_adapter_info));
 475
 476         tmp = dev->adapter_info.kernelrev;
 477         printk(KERN_INFO"%s%d: kernel %d.%d.%d build %d\n",
 478                         dev->name, dev->id,
 479                         tmp>>24,(tmp>>16)&0xff,(tmp>>8)&0xff,
 480                         dev->adapter_info.kernelbuild);
 481         tmp = dev->adapter_info.monitorrev;
 482         printk(KERN_INFO"%s%d: monitor %d.%d.%d build %d\n",
 483                         dev->name, dev->id,
 484                         tmp>>24,(tmp>>16)&0xff,(tmp>>8)&0xff,
 485                         dev->adapter_info.monitorbuild);
 486         tmp = dev->adapter_info.biosrev;
 487         printk(KERN_INFO"%s%d: bios %d.%d.%d build %d\n",
 488                         dev->name, dev->id,
 489                         tmp>>24,(tmp>>16)&0xff,(tmp>>8)&0xff,
 490                         dev->adapter_info.biosbuild);
 491         printk(KERN_INFO"%s%d: serial %x%x\n",
 492                         dev->name, dev->id,
 493                         dev->adapter_info.serial[0],
 494                         dev->adapter_info.serial[1]);
 495
 496         dev->nondasd_support = 0;
 497         if(dev->adapter_info.options & AAC_OPT_NONDASD){
 498                 dev->nondasd_support = 1;
 499         }
 500         if(nondasd != -1) {
 501                 dev->nondasd_support = (nondasd!=0);
 502         }
 503         if(dev->nondasd_support != 0){
 504                 printk(KERN_INFO "%s%d: Non-DASD support enabled.\n",dev->name, dev->id);
 505         }
 506
 507         dev->dac_support = 0;
 508         if( (sizeof(dma_addr_t) > 4) && (dev->adapter_info.options & AAC_OPT_SGMAP_HOST64)){
 509                 printk(KERN_INFO "%s%d: 64bit support enabled.\n", dev->name, dev->id);
 510                 dev->dac_support = 1;
 511         }
 512
 513         if(dacmode != -1) {
 514                 dev->dac_support = (dacmode!=0);
 515         }
 516         if(dev->dac_support != 0) {
 517                 if (!pci_set_dma_mask(dev->pdev, 0xFFFFFFFFFFFFFFFFULL) &&
 518                         !pci_set_consistent_dma_mask(dev->pdev, 0xFFFFFFFFFFFFFFFFULL)) {
 519                         printk(KERN_INFO"%s%d: 64 Bit DAC enabled\n",
 520                                 dev->name, dev->id);
 521                 } else if (!pci_set_dma_mask(dev->pdev, 0xFFFFFFFFULL) &&
 522                         !pci_set_consistent_dma_mask(dev->pdev, 0xFFFFFFFFULL)) {
 523                         printk(KERN_INFO"%s%d: DMA mask set failed, 64 Bit DAC disabled\n",
 524                                 dev->name, dev->id);
 525                         dev->dac_support = 0;
 526                 } else {
 527                         printk(KERN_WARNING"%s%d: No suitable DMA available.\n",
 528                                 dev->name, dev->id);
 529                         rcode = -ENOMEM;
 530                 }
 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 = ID_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, scsicmd->SCp.dma_handle,
 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                                     HARDWARE_ERROR,
 576                                     SENCODE_INTERNAL_TARGET_FAILURE,
 577                                     ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
 578                                     0, 0);
 579                 memcpy(scsicmd->sense_buffer, &sense_data[cid], sizeof(struct sense_data));
 580         }
 581         fib_complete(fibptr);
 582         fib_free(fibptr);
 583
 584         aac_io_done(scsicmd);
 585 }
 586
 587 static void write_callback(void *context, struct fib * fibptr)
 588 {
 589         struct aac_dev *dev;
 590         struct aac_write_reply *writereply;
 591         struct scsi_cmnd *scsicmd;
 592         u32 lba;
 593         u32 cid;
 594
 595         scsicmd = (struct scsi_cmnd *) context;
 596         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
 597         cid = ID_LUN_TO_CONTAINER(scsicmd->device->id, scsicmd->device->lun);
 598
 599         lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
 600         dprintk((KERN_DEBUG "write_callback[cpu %d]: lba = %u, t = %ld.\n", smp_processor_id(), lba, jiffies));
 601         if (fibptr == NULL)
 602                 BUG();
 603
 604         if(scsicmd->use_sg)
 605                 pci_unmap_sg(dev->pdev,
 606                         (struct scatterlist *)scsicmd->buffer,
 607                         scsicmd->use_sg,
 608                         scsicmd->sc_data_direction);
 609         else if(scsicmd->request_bufflen)
 610                 pci_unmap_single(dev->pdev, scsicmd->SCp.dma_handle,
 611                                  scsicmd->request_bufflen,
 612                                  scsicmd->sc_data_direction);
 613
 614         writereply = (struct aac_write_reply *) fib_data(fibptr);
 615         if (le32_to_cpu(writereply->status) == ST_OK)
 616                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
 617         else {
 618                 printk(KERN_WARNING "write_callback: write failed, status = %d\n", writereply->status);
 619                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
 620                 set_sense((u8 *) &sense_data[cid],
 621                                     HARDWARE_ERROR,
 622                                     SENCODE_INTERNAL_TARGET_FAILURE,
 623                                     ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
 624                                     0, 0);
 625                 memcpy(scsicmd->sense_buffer, &sense_data[cid], sizeof(struct sense_data));
 626         }
 627
 628         fib_complete(fibptr);
 629         fib_free(fibptr);
 630         aac_io_done(scsicmd);
 631 }
 632
 633 int aac_read(struct scsi_cmnd * scsicmd, int cid)
 634 {
 635         u32 lba;
 636         u32 count;
 637         int status;
 638
 639         u16 fibsize;
 640         struct aac_dev *dev;
 641         struct fib * cmd_fibcontext;
 642
 643         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
 644         /*
 645          *      Get block address and transfer length
 646          */
 647         if (scsicmd->cmnd[0] == READ_6) /* 6 byte command */
 648         {
 649                 dprintk((KERN_DEBUG "aachba: received a read(6) command on id %d.\n", cid));
 650
 651                 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
 652                 count = scsicmd->cmnd[4];
 653
 654                 if (count == 0)
 655                         count = 256;
 656         } else {
 657                 dprintk((KERN_DEBUG "aachba: received a read(10) command on id %d.\n", cid));
 658
 659                 lba = (scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
 660                 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
 661         }
 662         dprintk((KERN_DEBUG "aac_read[cpu %d]: lba = %u, t = %ld.\n", smp_processor_id(), lba, jiffies));
 663         /*
 664          *      Alocate and initialize a Fib
 665          */
 666         if (!(cmd_fibcontext = fib_alloc(dev))) {
 667                 return -1;
 668         }
 669
 670         fib_init(cmd_fibcontext);
 671
 672         if(dev->dac_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         {
 730                 dprintk("read queued.\n");
 731                 return 0;
 732         }
 733
 734         printk(KERN_WARNING "aac_read: fib_send failed with status: %d.\n", status);
 735         /*
 736          *      For some reason, the Fib didn't queue, return QUEUE_FULL
 737          */
 738         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_TASK_SET_FULL;
 739         aac_io_done(scsicmd);
 740         fib_complete(cmd_fibcontext);
 741         fib_free(cmd_fibcontext);
 742         return -1;
 743 }
 744
 745 static int aac_write(struct scsi_cmnd * scsicmd, int cid)
 746 {
 747         u32 lba;
 748         u32 count;
 749         int status;
 750         u16 fibsize;
 751         struct aac_dev *dev;
 752         struct fib * cmd_fibcontext;
 753
 754         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
 755         /*
 756          *      Get block address and transfer length
 757          */
 758         if (scsicmd->cmnd[0] == WRITE_6)        /* 6 byte command */
 759         {
 760                 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
 761                 count = scsicmd->cmnd[4];
 762                 if (count == 0)
 763                         count = 256;
 764         } else {
 765                 dprintk((KERN_DEBUG "aachba: received a write(10) command on id %d.\n", cid));
 766                 lba = (scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
 767                 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
 768         }
 769         dprintk((KERN_DEBUG "aac_write[cpu %d]: lba = %u, t = %ld.\n", smp_processor_id(), lba, jiffies));
 770         /*
 771          *      Allocate and initialize a Fib then setup a BlockWrite command
 772          */
 773         if (!(cmd_fibcontext = fib_alloc(dev))) {
 774                 scsicmd->result = DID_ERROR << 16;
 775                 aac_io_done(scsicmd);
 776                 return -1;
 777         }
 778         fib_init(cmd_fibcontext);
 779
 780         if(dev->dac_support == 1) {
 781                 struct aac_write64 *writecmd;
 782                 writecmd = (struct aac_write64 *) fib_data(cmd_fibcontext);
 783                 writecmd->command = cpu_to_le32(VM_CtHostWrite64);
 784                 writecmd->cid = cpu_to_le16(cid);
 785                 writecmd->sector_count = cpu_to_le16(count);
 786                 writecmd->block = cpu_to_le32(lba);
 787                 writecmd->pad   = cpu_to_le16(0);
 788                 writecmd->flags = cpu_to_le16(0);
 789
 790                 aac_build_sg64(scsicmd, &writecmd->sg);
 791                 if(writecmd->sg.count > MAX_DRIVER_SG_SEGMENT_COUNT)
 792                         BUG();
 793                 fibsize = sizeof(struct aac_write64) + ((writecmd->sg.count - 1) * sizeof (struct sgentry64));
 794                 /*
 795                  *      Now send the Fib to the adapter
 796                  */
 797                 status = fib_send(ContainerCommand64,
 798                           cmd_fibcontext,
 799                           fibsize,
 800                           FsaNormal,
 801                           0, 1,
 802                           (fib_callback) write_callback,
 803                           (void *) scsicmd);
 804         } else {
 805                 struct aac_write *writecmd;
 806                 writecmd = (struct aac_write *) fib_data(cmd_fibcontext);
 807                 writecmd->command = cpu_to_le32(VM_CtBlockWrite);
 808                 writecmd->cid = cpu_to_le32(cid);
 809                 writecmd->block = cpu_to_le32(lba);
 810                 writecmd->count = cpu_to_le32(count * 512);
 811                 writecmd->sg.count = cpu_to_le32(1);
 812                 /* ->stable is not used - it did mean which type of write */
 813
 814                 if (count * 512 > (64 * 1024)) {
 815                         BUG();
 816                 }
 817
 818                 aac_build_sg(scsicmd, &writecmd->sg);
 819                 if(writecmd->sg.count > MAX_DRIVER_SG_SEGMENT_COUNT)
 820                         BUG();
 821                 fibsize = sizeof(struct aac_write) + ((writecmd->sg.count - 1) * sizeof (struct sgentry));
 822                 /*
 823                  *      Now send the Fib to the adapter
 824                  */
 825                 status = fib_send(ContainerCommand,
 826                           cmd_fibcontext,
 827                           fibsize,
 828                           FsaNormal,
 829                           0, 1,
 830                           (fib_callback) write_callback,
 831                           (void *) scsicmd);
 832         }
 833
 834         /*
 835          *      Check that the command queued to the controller
 836          */
 837         if (status == -EINPROGRESS)
 838         {
 839                 dprintk("write queued.\n");
 840                 return 0;
 841         }
 842
 843         printk(KERN_WARNING "aac_write: fib_send failed with status: %d\n", status);
 844         /*
 845          *      For some reason, the Fib didn't queue, return QUEUE_FULL
 846          */
 847         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_TASK_SET_FULL;
 848         aac_io_done(scsicmd);
 849
 850         fib_complete(cmd_fibcontext);
 851         fib_free(cmd_fibcontext);
 852         return -1;
 853 }
 854
 855
 856 /**
 857  *      aac_scsi_cmd()          -       Process SCSI command
 858  *      @scsicmd:               SCSI command block
 859  *
 860  *      Emulate a SCSI command and queue the required request for the
 861  *      aacraid firmware.
 862  */
 863
 864 int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 865 {
 866         u32 cid = 0;
 867         int ret;
 868         struct Scsi_Host *host = scsicmd->device->host;
 869         struct aac_dev *dev = (struct aac_dev *)host->hostdata;
 870         struct fsa_scsi_hba *fsa_dev_ptr = &dev->fsa_dev;
 871         int cardtype = dev->cardtype;
 872
 873         /*
 874          *      If the bus, id or lun is out of range, return fail
 875          *      Test does not apply to ID 16, the pseudo id for the controller
 876          *      itself.
 877          */
 878         if (scsicmd->device->id != host->this_id) {
 879                 if ((scsicmd->device->channel == 0) ){
 880                         if( (scsicmd->device->id >= MAXIMUM_NUM_CONTAINERS) || (scsicmd->device->lun != 0)){
 881                                 scsicmd->result = DID_NO_CONNECT << 16;
 882                                 __aac_io_done(scsicmd);
 883                                 return 0;
 884                         }
 885                         cid = ID_LUN_TO_CONTAINER(scsicmd->device->id, scsicmd->device->lun);
 886
 887                         /*
 888                          *      If the target container doesn't exist, it may have
 889                          *      been newly created
 890                          */
 891                         if (fsa_dev_ptr->valid[cid] == 0) {
 892                                 switch (scsicmd->cmnd[0]) {
 893                                 case INQUIRY:
 894                                 case READ_CAPACITY:
 895                                 case TEST_UNIT_READY:
 896                                         spin_unlock_irq(host->host_lock);
 897                                         probe_container(dev, cid);
 898                                         spin_lock_irq(host->host_lock);
 899                                         if (fsa_dev_ptr->valid[cid] == 0) {
 900                                                 scsicmd->result = DID_NO_CONNECT << 16;
 901                                                 __aac_io_done(scsicmd);
 902                                                 return 0;
 903                                         }
 904                                 default:
 905                                         break;
 906                                 }
 907                         }
 908                         /*
 909                          *      If the target container still doesn't exist,
 910                          *      return failure
 911                          */
 912                         if (fsa_dev_ptr->valid[cid] == 0) {
 913                                 scsicmd->result = DID_BAD_TARGET << 16;
 914                                 __aac_io_done(scsicmd);
 915                                 return 0;
 916                         }
 917                 } else {  /* check for physical non-dasd devices */
 918                         if(dev->nondasd_support == 1){
 919                                 return aac_send_srb_fib(scsicmd);
 920                         } else {
 921                                 scsicmd->result = DID_NO_CONNECT << 16;
 922                                 __aac_io_done(scsicmd);
 923                                 return 0;
 924                         }
 925                 }
 926         }
 927         /*
 928          * else Command for the controller itself
 929          */
 930         else if ((scsicmd->cmnd[0] != INQUIRY) &&       /* only INQUIRY & TUR cmnd supported for controller */
 931                 (scsicmd->cmnd[0] != TEST_UNIT_READY))
 932         {
 933                 dprintk((KERN_WARNING "Only INQUIRY & TUR command supported for controller, rcvd = 0x%x.\n", scsicmd->cmnd[0]));
 934                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
 935                 set_sense((u8 *) &sense_data[cid],
 936                             ILLEGAL_REQUEST,
 937                             SENCODE_INVALID_COMMAND,
 938                             ASENCODE_INVALID_COMMAND, 0, 0, 0, 0);
 939                 __aac_io_done(scsicmd);
 940                 memcpy(scsicmd->sense_buffer, &sense_data[cid], sizeof(struct sense_data));
 941                 return 0;
 942         }
 943
 944
 945         /* Handle commands here that don't really require going out to the adapter */
 946         switch (scsicmd->cmnd[0]) {
 947         case INQUIRY:
 948         {
 949                 struct inquiry_data *inq_data_ptr;
 950
 951                 dprintk((KERN_DEBUG "INQUIRY command, ID: %d.\n", scsicmd->device->id));
 952                 inq_data_ptr = (struct inquiry_data *)scsicmd->request_buffer;
 953                 memset(inq_data_ptr, 0, sizeof (struct inquiry_data));
 954
 955                 inq_data_ptr->inqd_ver = 2;     /* claim compliance to SCSI-2 */
 956                 inq_data_ptr->inqd_dtq = 0x80;  /* set RMB bit to one indicating that the medium is removable */
 957                 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 */
 958                 inq_data_ptr->inqd_len = 31;
 959                 /*Format for "pad2" is  RelAdr | WBus32 | WBus16 |  Sync  | Linked |Reserved| CmdQue | SftRe */
 960                 inq_data_ptr->inqd_pad2= 0x32 ;  /*WBus16|Sync|CmdQue */
 961                 /*
 962                  *      Set the Vendor, Product, and Revision Level
 963                  *      see: <vendor>.c i.e. aac.c
 964                  */
 965                 setinqstr(cardtype, (void *) (inq_data_ptr->inqd_vid), fsa_dev_ptr->type[cid]);
 966                 if (scsicmd->device->id == host->this_id)
 967                         inq_data_ptr->inqd_pdt = INQD_PDT_PROC; /* Processor device */
 968                 else
 969                         inq_data_ptr->inqd_pdt = INQD_PDT_DA;   /* Direct/random access device */
 970                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
 971                 __aac_io_done(scsicmd);
 972                 return 0;
 973         }
 974         case READ_CAPACITY:
 975         {
 976                 int capacity;
 977                 char *cp;
 978
 979                 dprintk((KERN_DEBUG "READ CAPACITY command.\n"));
 980                 capacity = fsa_dev_ptr->size[cid] - 1;
 981                 cp = scsicmd->request_buffer;
 982                 cp[0] = (capacity >> 24) & 0xff;
 983                 cp[1] = (capacity >> 16) & 0xff;
 984                 cp[2] = (capacity >> 8) & 0xff;
 985                 cp[3] = (capacity >> 0) & 0xff;
 986                 cp[4] = 0;
 987                 cp[5] = 0;
 988                 cp[6] = 2;
 989                 cp[7] = 0;
 990
 991                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
 992                 __aac_io_done(scsicmd);
 993
 994                 return 0;
 995         }
 996
 997         case MODE_SENSE:
 998         {
 999                 char *mode_buf;
1000
1001                 dprintk((KERN_DEBUG "MODE SENSE command.\n"));
1002                 mode_buf = scsicmd->request_buffer;
1003                 mode_buf[0] = 3;        /* Mode data length */
1004                 mode_buf[1] = 0;        /* Medium type - default */
1005                 mode_buf[2] = 0;        /* Device-specific param, bit 8: 0/1 = write enabled/protected */
1006                 mode_buf[3] = 0;        /* Block descriptor length */
1007
1008                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1009                 __aac_io_done(scsicmd);
1010
1011                 return 0;
1012         }
1013         case MODE_SENSE_10:
1014         {
1015                 char *mode_buf;
1016
1017                 dprintk((KERN_DEBUG "MODE SENSE 10 byte command.\n"));
1018                 mode_buf = scsicmd->request_buffer;
1019                 mode_buf[0] = 0;        /* Mode data length (MSB) */
1020                 mode_buf[1] = 6;        /* Mode data length (LSB) */
1021                 mode_buf[2] = 0;        /* Medium type - default */
1022                 mode_buf[3] = 0;        /* Device-specific param, bit 8: 0/1 = write enabled/protected */
1023                 mode_buf[4] = 0;        /* reserved */
1024                 mode_buf[5] = 0;        /* reserved */
1025                 mode_buf[6] = 0;        /* Block descriptor length (MSB) */
1026                 mode_buf[7] = 0;        /* Block descriptor length (LSB) */
1027
1028                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1029                 __aac_io_done(scsicmd);
1030
1031                 return 0;
1032         }
1033         case REQUEST_SENSE:
1034                 dprintk((KERN_DEBUG "REQUEST SENSE command.\n"));
1035                 memcpy(scsicmd->sense_buffer, &sense_data[cid], sizeof (struct sense_data));
1036                 memset(&sense_data[cid], 0, sizeof (struct sense_data));
1037                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1038                 __aac_io_done(scsicmd);
1039                 return 0;
1040
1041         case ALLOW_MEDIUM_REMOVAL:
1042                 dprintk((KERN_DEBUG "LOCK command.\n"));
1043                 if (scsicmd->cmnd[4])
1044                         fsa_dev_ptr->locked[cid] = 1;
1045                 else
1046                         fsa_dev_ptr->locked[cid] = 0;
1047
1048                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1049                 __aac_io_done(scsicmd);
1050                 return 0;
1051         /*
1052          *      These commands are all No-Ops
1053          */
1054         case TEST_UNIT_READY:
1055         case RESERVE:
1056         case RELEASE:
1057         case REZERO_UNIT:
1058         case REASSIGN_BLOCKS:
1059         case SEEK_10:
1060         case START_STOP:
1061                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1062                 __aac_io_done(scsicmd);
1063                 return 0;
1064         }
1065
1066         switch (scsicmd->cmnd[0])
1067         {
1068                 case READ_6:
1069                 case READ_10:
1070                         /*
1071                          *      Hack to keep track of ordinal number of the device that
1072                          *      corresponds to a container. Needed to convert
1073                          *      containers to /dev/sd device names
1074                          */
1075
1076                         spin_unlock_irq(host->host_lock);
1077                         if  (scsicmd->request->rq_disk)
1078                                 memcpy(fsa_dev_ptr->devname[cid],
1079                                         scsicmd->request->rq_disk->disk_name,
1080                                         8);
1081
1082                         ret = aac_read(scsicmd, cid);
1083                         spin_lock_irq(host->host_lock);
1084                         return ret;
1085
1086                 case WRITE_6:
1087                 case WRITE_10:
1088                         spin_unlock_irq(host->host_lock);
1089                         ret = aac_write(scsicmd, cid);
1090                         spin_lock_irq(host->host_lock);
1091                         return ret;
1092                 default:
1093                         /*
1094                          *      Unhandled commands
1095                          */
1096                         printk(KERN_WARNING "Unhandled SCSI Command: 0x%x.\n", scsicmd->cmnd[0]);
1097                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1098                         set_sense((u8 *) &sense_data[cid],
1099                                 ILLEGAL_REQUEST, SENCODE_INVALID_COMMAND,
1100                         ASENCODE_INVALID_COMMAND, 0, 0, 0, 0);
1101                         memcpy(scsicmd->sense_buffer, &sense_data[cid],
1102                                 sizeof(struct sense_data));
1103                         __aac_io_done(scsicmd);
1104                         return 0;
1105         }
1106 }
1107
1108 static int query_disk(struct aac_dev *dev, void __user *arg)
1109 {
1110         struct aac_query_disk qd;
1111         struct fsa_scsi_hba *fsa_dev_ptr;
1112
1113         fsa_dev_ptr = &(dev->fsa_dev);
1114         if (copy_from_user(&qd, arg, sizeof (struct aac_query_disk)))
1115                 return -EFAULT;
1116         if (qd.cnum == -1)
1117                 qd.cnum = ID_LUN_TO_CONTAINER(qd.id, qd.lun);
1118         else if ((qd.bus == -1) && (qd.id == -1) && (qd.lun == -1))
1119         {
1120                 if (qd.cnum < 0 || qd.cnum >= MAXIMUM_NUM_CONTAINERS)
1121                         return -EINVAL;
1122                 qd.instance = dev->scsi_host_ptr->host_no;
1123                 qd.bus = 0;
1124                 qd.id = CONTAINER_TO_ID(qd.cnum);
1125                 qd.lun = CONTAINER_TO_LUN(qd.cnum);
1126         }
1127         else return -EINVAL;
1128
1129         qd.valid = fsa_dev_ptr->valid[qd.cnum];
1130         qd.locked = fsa_dev_ptr->locked[qd.cnum];
1131         qd.deleted = fsa_dev_ptr->deleted[qd.cnum];
1132
1133         if (fsa_dev_ptr->devname[qd.cnum][0] == '\0')
1134                 qd.unmapped = 1;
1135         else
1136                 qd.unmapped = 0;
1137
1138         strlcpy(qd.name, fsa_dev_ptr->devname[qd.cnum], sizeof(qd.name));
1139
1140         if (copy_to_user(arg, &qd, sizeof (struct aac_query_disk)))
1141                 return -EFAULT;
1142         return 0;
1143 }
1144
1145 static int force_delete_disk(struct aac_dev *dev, void __user *arg)
1146 {
1147         struct aac_delete_disk dd;
1148         struct fsa_scsi_hba *fsa_dev_ptr;
1149
1150         fsa_dev_ptr = &(dev->fsa_dev);
1151
1152         if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
1153                 return -EFAULT;
1154
1155         if (dd.cnum >= MAXIMUM_NUM_CONTAINERS)
1156                 return -EINVAL;
1157         /*
1158          *      Mark this container as being deleted.
1159          */
1160         fsa_dev_ptr->deleted[dd.cnum] = 1;
1161         /*
1162          *      Mark the container as no longer valid
1163          */
1164         fsa_dev_ptr->valid[dd.cnum] = 0;
1165         return 0;
1166 }
1167
1168 static int delete_disk(struct aac_dev *dev, void __user *arg)
1169 {
1170         struct aac_delete_disk dd;
1171         struct fsa_scsi_hba *fsa_dev_ptr;
1172
1173         fsa_dev_ptr = &(dev->fsa_dev);
1174
1175         if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
1176                 return -EFAULT;
1177
1178         if (dd.cnum >= MAXIMUM_NUM_CONTAINERS)
1179                 return -EINVAL;
1180         /*
1181          *      If the container is locked, it can not be deleted by the API.
1182          */
1183         if (fsa_dev_ptr->locked[dd.cnum])
1184                 return -EBUSY;
1185         else {
1186                 /*
1187                  *      Mark the container as no longer being valid.
1188                  */
1189                 fsa_dev_ptr->valid[dd.cnum] = 0;
1190                 fsa_dev_ptr->devname[dd.cnum][0] = '\0';
1191                 return 0;
1192         }
1193 }
1194
1195 int aac_dev_ioctl(struct aac_dev *dev, int cmd, void __user *arg)
1196 {
1197         switch (cmd) {
1198         case FSACTL_QUERY_DISK:
1199                 return query_disk(dev, arg);
1200         case FSACTL_DELETE_DISK:
1201                 return delete_disk(dev, arg);
1202         case FSACTL_FORCE_DELETE_DISK:
1203                 return force_delete_disk(dev, arg);
1204         case FSACTL_GET_CONTAINERS:
1205                 return aac_get_containers(dev);
1206         default:
1207                 return -ENOTTY;
1208         }
1209 }
1210
1211 /**
1212  *
1213  * aac_srb_callback
1214  * @context: the context set in the fib - here it is scsi cmd
1215  * @fibptr: pointer to the fib
1216  *
1217  * Handles the completion of a scsi command to a non dasd device
1218  *
1219  */
1220
1221 static void aac_srb_callback(void *context, struct fib * fibptr)
1222 {
1223         struct aac_dev *dev;
1224         struct aac_srb_reply *srbreply;
1225         struct scsi_cmnd *scsicmd;
1226
1227         scsicmd = (struct scsi_cmnd *) context;
1228         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1229
1230         if (fibptr == NULL)
1231                 BUG();
1232
1233         srbreply = (struct aac_srb_reply *) fib_data(fibptr);
1234
1235         scsicmd->sense_buffer[0] = '\0';  /* Initialize sense valid flag to false */
1236         /*
1237          *      Calculate resid for sg
1238          */
1239
1240         scsicmd->resid = scsicmd->request_bufflen - srbreply->data_xfer_length;
1241
1242         if(scsicmd->use_sg)
1243                 pci_unmap_sg(dev->pdev,
1244                         (struct scatterlist *)scsicmd->buffer,
1245                         scsicmd->use_sg,
1246                         scsicmd->sc_data_direction);
1247         else if(scsicmd->request_bufflen)
1248                 pci_unmap_single(dev->pdev, scsicmd->SCp.dma_handle, scsicmd->request_bufflen,
1249                         scsicmd->sc_data_direction);
1250
1251         /*
1252          * First check the fib status
1253          */
1254
1255         if (le32_to_cpu(srbreply->status) != ST_OK){
1256                 int len;
1257                 printk(KERN_WARNING "aac_srb_callback: srb failed, status = %d\n", le32_to_cpu(srbreply->status));
1258                 len = (srbreply->sense_data_size > sizeof(scsicmd->sense_buffer))?
1259                                 sizeof(scsicmd->sense_buffer):srbreply->sense_data_size;
1260                 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1261                 memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
1262         }
1263
1264         /*
1265          * Next check the srb status
1266          */
1267         switch( (le32_to_cpu(srbreply->srb_status))&0x3f){
1268         case SRB_STATUS_ERROR_RECOVERY:
1269         case SRB_STATUS_PENDING:
1270         case SRB_STATUS_SUCCESS:
1271                 if(scsicmd->cmnd[0] == INQUIRY ){
1272                         u8 b;
1273                         u8 b1;
1274                         /* We can't expose disk devices because we can't tell whether they
1275                          * are the raw container drives or stand alone drives.  If they have
1276                          * the removable bit set then we should expose them though.
1277                          */
1278                         b = (*(u8*)scsicmd->buffer)&0x1f;
1279                         b1 = ((u8*)scsicmd->buffer)[1];
1280                         if( b==TYPE_TAPE || b==TYPE_WORM || b==TYPE_ROM || b==TYPE_MOD|| b==TYPE_MEDIUM_CHANGER
1281                                         || (b==TYPE_DISK && (b1&0x80)) ){
1282                                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
1283                         } else {
1284                                 scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8;
1285                         }
1286                 } else {
1287                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
1288                 }
1289                 break;
1290         case SRB_STATUS_DATA_OVERRUN:
1291                 switch(scsicmd->cmnd[0]){
1292                 case  READ_6:
1293                 case  WRITE_6:
1294                 case  READ_10:
1295                 case  WRITE_10:
1296                 case  READ_12:
1297                 case  WRITE_12:
1298                         if(le32_to_cpu(srbreply->data_xfer_length) < scsicmd->underflow ) {
1299                                 printk(KERN_WARNING"aacraid: SCSI CMD underflow\n");
1300                         } else {
1301                                 printk(KERN_WARNING"aacraid: SCSI CMD Data Overrun\n");
1302                         }
1303                         scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
1304                         break;
1305                 case INQUIRY: {
1306                         u8 b;
1307                         u8 b1;
1308                         /* We can't expose disk devices because we can't tell whether they
1309                         * are the raw container drives or stand alone drives
1310                         */
1311                         b = (*(u8*)scsicmd->buffer)&0x0f;
1312                         b1 = ((u8*)scsicmd->buffer)[1];
1313                         if( b==TYPE_TAPE || b==TYPE_WORM || b==TYPE_ROM || b==TYPE_MOD|| b==TYPE_MEDIUM_CHANGER
1314                                         || (b==TYPE_DISK && (b1&0x80)) ){
1315                                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
1316                         } else {
1317                                 scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8;
1318                         }
1319                         break;
1320                 }
1321                 default:
1322                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
1323                         break;
1324                 }
1325                 break;
1326         case SRB_STATUS_ABORTED:
1327                 scsicmd->result = DID_ABORT << 16 | ABORT << 8;
1328                 break;
1329         case SRB_STATUS_ABORT_FAILED:
1330                 // Not sure about this one - but assuming the hba was trying to abort for some reason
1331                 scsicmd->result = DID_ERROR << 16 | ABORT << 8;
1332                 break;
1333         case SRB_STATUS_PARITY_ERROR:
1334                 scsicmd->result = DID_PARITY << 16 | MSG_PARITY_ERROR << 8;
1335                 break;
1336         case SRB_STATUS_NO_DEVICE:
1337         case SRB_STATUS_INVALID_PATH_ID:
1338         case SRB_STATUS_INVALID_TARGET_ID:
1339         case SRB_STATUS_INVALID_LUN:
1340         case SRB_STATUS_SELECTION_TIMEOUT:
1341                 scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8;
1342                 break;
1343
1344         case SRB_STATUS_COMMAND_TIMEOUT:
1345         case SRB_STATUS_TIMEOUT:
1346                 scsicmd->result = DID_TIME_OUT << 16 | COMMAND_COMPLETE << 8;
1347                 break;
1348
1349         case SRB_STATUS_BUSY:
1350                 scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8;
1351                 break;
1352
1353         case SRB_STATUS_BUS_RESET:
1354                 scsicmd->result = DID_RESET << 16 | COMMAND_COMPLETE << 8;
1355                 break;
1356
1357         case SRB_STATUS_MESSAGE_REJECTED:
1358                 scsicmd->result = DID_ERROR << 16 | MESSAGE_REJECT << 8;
1359                 break;
1360         case SRB_STATUS_REQUEST_FLUSHED:
1361         case SRB_STATUS_ERROR:
1362         case SRB_STATUS_INVALID_REQUEST:
1363         case SRB_STATUS_REQUEST_SENSE_FAILED:
1364         case SRB_STATUS_NO_HBA:
1365         case SRB_STATUS_UNEXPECTED_BUS_FREE:
1366         case SRB_STATUS_PHASE_SEQUENCE_FAILURE:
1367         case SRB_STATUS_BAD_SRB_BLOCK_LENGTH:
1368         case SRB_STATUS_DELAYED_RETRY:
1369         case SRB_STATUS_BAD_FUNCTION:
1370         case SRB_STATUS_NOT_STARTED:
1371         case SRB_STATUS_NOT_IN_USE:
1372         case SRB_STATUS_FORCE_ABORT:
1373         case SRB_STATUS_DOMAIN_VALIDATION_FAIL:
1374         default:
1375 #ifdef AAC_DETAILED_STATUS_INFO
1376                 printk("aacraid: SRB ERROR(%u) %s scsi cmd 0x%x - scsi status 0x%x\n",
1377                         le32_to_cpu(srbreply->srb_status & 0x3F),
1378                         aac_get_status_string(
1379                                 le32_to_cpu(srbreply->srb_status) & 0x3F),
1380                         scsicmd->cmnd[0],
1381                         le32_to_cpu(srbreply->scsi_status));
1382 #endif
1383                 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
1384                 break;
1385         }
1386         if (le32_to_cpu(srbreply->scsi_status) == 0x02 ){  // Check Condition
1387                 int len;
1388                 scsicmd->result |= SAM_STAT_CHECK_CONDITION;
1389                 len = (srbreply->sense_data_size > sizeof(scsicmd->sense_buffer))?
1390                                 sizeof(scsicmd->sense_buffer):srbreply->sense_data_size;
1391 #ifdef AAC_DETAILED_STATUS_INFO
1392                 dprintk((KERN_WARNING "aac_srb_callback: check condition, status = %d len=%d\n",
1393                                         le32_to_cpu(srbreply->status), len));
1394 #endif
1395                 memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
1396
1397         }
1398         /*
1399          * OR in the scsi status (already shifted up a bit)
1400          */
1401         scsicmd->result |= le32_to_cpu(srbreply->scsi_status);
1402
1403         fib_complete(fibptr);
1404         fib_free(fibptr);
1405         aac_io_done(scsicmd);
1406 }
1407
1408 /**
1409  *
1410  * aac_send_scb_fib
1411  * @scsicmd: the scsi command block
1412  *
1413  * This routine will form a FIB and fill in the aac_srb from the
1414  * scsicmd passed in.
1415  */
1416
1417 static int aac_send_srb_fib(struct scsi_cmnd* scsicmd)
1418 {
1419         struct fib* cmd_fibcontext;
1420         struct aac_dev* dev;
1421         int status;
1422         struct aac_srb *srbcmd;
1423         u16 fibsize;
1424         u32 flag;
1425         u32 timeout;
1426
1427         if( scsicmd->device->id > 15 || scsicmd->device->lun > 7) {
1428                 scsicmd->result = DID_NO_CONNECT << 16;
1429                 __aac_io_done(scsicmd);
1430                 return 0;
1431         }
1432
1433         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1434         switch(scsicmd->sc_data_direction){
1435         case DMA_TO_DEVICE:
1436                 flag = SRB_DataOut;
1437                 break;
1438         case DMA_BIDIRECTIONAL:
1439                 flag = SRB_DataIn | SRB_DataOut;
1440                 break;
1441         case DMA_FROM_DEVICE:
1442                 flag = SRB_DataIn;
1443                 break;
1444         case DMA_NONE:
1445         default:        /* shuts up some versions of gcc */
1446                 flag = SRB_NoDataXfer;
1447                 break;
1448         }
1449
1450
1451         /*
1452          *      Allocate and initialize a Fib then setup a BlockWrite command
1453          */
1454         if (!(cmd_fibcontext = fib_alloc(dev))) {
1455                 return -1;
1456         }
1457         fib_init(cmd_fibcontext);
1458
1459         srbcmd = (struct aac_srb*) fib_data(cmd_fibcontext);
1460         srbcmd->function = cpu_to_le32(SRBF_ExecuteScsi);
1461         srbcmd->channel  = cpu_to_le32(aac_logical_to_phys(scsicmd->device->channel));
1462         srbcmd->id   = cpu_to_le32(scsicmd->device->id);
1463         srbcmd->lun      = cpu_to_le32(scsicmd->device->lun);
1464         srbcmd->flags    = cpu_to_le32(flag);
1465         timeout = (scsicmd->timeout-jiffies)/HZ;
1466         if(timeout == 0){
1467                 timeout = 1;
1468         }
1469         srbcmd->timeout  = cpu_to_le32(timeout);  // timeout in seconds
1470         srbcmd->retry_limit =cpu_to_le32(0); // Obsolete parameter
1471         srbcmd->cdb_size = cpu_to_le32(scsicmd->cmd_len);
1472
1473         if( dev->dac_support == 1 ) {
1474                 aac_build_sg64(scsicmd, (struct sgmap64*) &srbcmd->sg);
1475                 srbcmd->count = cpu_to_le32(scsicmd->request_bufflen);
1476
1477                 memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
1478                 memcpy(srbcmd->cdb, scsicmd->cmnd, scsicmd->cmd_len);
1479                 /*
1480                  *      Build Scatter/Gather list
1481                  */
1482                 fibsize = sizeof (struct aac_srb) + (((srbcmd->sg.count & 0xff) - 1) * sizeof (struct sgentry64));
1483
1484                 /*
1485                  *      Now send the Fib to the adapter
1486                  */
1487                 status = fib_send(ScsiPortCommand64, cmd_fibcontext, fibsize, FsaNormal, 0, 1,
1488                                   (fib_callback) aac_srb_callback, (void *) scsicmd);
1489         } else {
1490                 aac_build_sg(scsicmd, (struct sgmap*)&srbcmd->sg);
1491                 srbcmd->count = cpu_to_le32(scsicmd->request_bufflen);
1492
1493                 memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
1494                 memcpy(srbcmd->cdb, scsicmd->cmnd, scsicmd->cmd_len);
1495                 /*
1496                  *      Build Scatter/Gather list
1497                  */
1498                 fibsize = sizeof (struct aac_srb) + (((srbcmd->sg.count & 0xff) - 1) * sizeof (struct sgentry));
1499
1500                 /*
1501                  *      Now send the Fib to the adapter
1502                  */
1503                 status = fib_send(ScsiPortCommand, cmd_fibcontext, fibsize, FsaNormal, 0, 1,
1504                                   (fib_callback) aac_srb_callback, (void *) scsicmd);
1505         }
1506         /*
1507          *      Check that the command queued to the controller
1508          */
1509         if (status == -EINPROGRESS){
1510                 return 0;
1511         }
1512
1513         printk(KERN_WARNING "aac_srb: fib_send failed with status: %d\n", status);
1514         fib_complete(cmd_fibcontext);
1515         fib_free(cmd_fibcontext);
1516
1517         return -1;
1518 }
1519
1520 static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* psg)
1521 {
1522         struct aac_dev *dev;
1523         unsigned long byte_count = 0;
1524
1525         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1526         // Get rid of old data
1527         psg->count = cpu_to_le32(0);
1528         psg->sg[0].addr = cpu_to_le32(0);
1529         psg->sg[0].count = cpu_to_le32(0);
1530         if (scsicmd->use_sg) {
1531                 struct scatterlist *sg;
1532                 int i;
1533                 int sg_count;
1534                 sg = (struct scatterlist *) scsicmd->request_buffer;
1535
1536                 sg_count = pci_map_sg(dev->pdev, sg, scsicmd->use_sg,
1537                         scsicmd->sc_data_direction);
1538                 psg->count = cpu_to_le32(sg_count);
1539
1540                 byte_count = 0;
1541
1542                 for (i = 0; i < sg_count; i++) {
1543                         psg->sg[i].addr = cpu_to_le32(sg_dma_address(sg));
1544                         psg->sg[i].count = cpu_to_le32(sg_dma_len(sg));
1545                         byte_count += sg_dma_len(sg);
1546                         sg++;
1547                 }
1548                 /* hba wants the size to be exact */
1549                 if(byte_count > scsicmd->request_bufflen){
1550                         psg->sg[i-1].count -= (byte_count - scsicmd->request_bufflen);
1551                         byte_count = scsicmd->request_bufflen;
1552                 }
1553                 /* Check for command underflow */
1554                 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
1555                         printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
1556                                         byte_count, scsicmd->underflow);
1557                 }
1558         }
1559         else if(scsicmd->request_bufflen) {
1560                 dma_addr_t addr;
1561                 addr = pci_map_single(dev->pdev,
1562                                 scsicmd->request_buffer,
1563                                 scsicmd->request_bufflen,
1564                                 scsicmd->sc_data_direction);
1565                 psg->count = cpu_to_le32(1);
1566                 psg->sg[0].addr = cpu_to_le32(addr);
1567                 psg->sg[0].count = cpu_to_le32(scsicmd->request_bufflen);
1568                 scsicmd->SCp.dma_handle = addr;
1569                 byte_count = scsicmd->request_bufflen;
1570         }
1571         return byte_count;
1572 }
1573
1574
1575 static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* psg)
1576 {
1577         struct aac_dev *dev;
1578         unsigned long byte_count = 0;
1579         u64 le_addr;
1580
1581         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1582         // Get rid of old data
1583         psg->count = cpu_to_le32(0);
1584         psg->sg[0].addr[0] = cpu_to_le32(0);
1585         psg->sg[0].addr[1] = cpu_to_le32(0);
1586         psg->sg[0].count = cpu_to_le32(0);
1587         if (scsicmd->use_sg) {
1588                 struct scatterlist *sg;
1589                 int i;
1590                 int sg_count;
1591                 sg = (struct scatterlist *) scsicmd->request_buffer;
1592
1593                 sg_count = pci_map_sg(dev->pdev, sg, scsicmd->use_sg,
1594                         scsicmd->sc_data_direction);
1595                 psg->count = cpu_to_le32(sg_count);
1596
1597                 byte_count = 0;
1598
1599                 for (i = 0; i < sg_count; i++) {
1600                         le_addr = cpu_to_le64(sg_dma_address(sg));
1601                         psg->sg[i].addr[1] = (u32)(le_addr>>32);
1602                         psg->sg[i].addr[0] = (u32)(le_addr & 0xffffffff);
1603                         psg->sg[i].count = cpu_to_le32(sg_dma_len(sg));
1604                         byte_count += sg_dma_len(sg);
1605                         sg++;
1606                 }
1607                 /* hba wants the size to be exact */
1608                 if(byte_count > scsicmd->request_bufflen){
1609                         psg->sg[i-1].count -= (byte_count - scsicmd->request_bufflen);
1610                         byte_count = scsicmd->request_bufflen;
1611                 }
1612                 /* Check for command underflow */
1613                 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
1614                         printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
1615                                         byte_count, scsicmd->underflow);
1616                 }
1617         }
1618         else if(scsicmd->request_bufflen) {
1619                 dma_addr_t addr;
1620                 addr = pci_map_single(dev->pdev,
1621                                 scsicmd->request_buffer,
1622                                 scsicmd->request_bufflen,
1623                                 scsicmd->sc_data_direction);
1624                 psg->count = cpu_to_le32(1);
1625                 le_addr = cpu_to_le64(addr);
1626                 psg->sg[0].addr[1] = (u32)(le_addr>>32);
1627                 psg->sg[0].addr[0] = (u32)(le_addr & 0xffffffff);
1628                 psg->sg[0].count = cpu_to_le32(scsicmd->request_bufflen);
1629                 scsicmd->SCp.dma_handle = addr;
1630                 byte_count = scsicmd->request_bufflen;
1631         }
1632         return byte_count;
1633 }
1634
1635 #ifdef AAC_DETAILED_STATUS_INFO
1636
1637 struct aac_srb_status_info {
1638         u32     status;
1639         char    *str;
1640 };
1641
1642
1643 static struct aac_srb_status_info srb_status_info[] = {
1644         { SRB_STATUS_PENDING,           "Pending Status"},
1645         { SRB_STATUS_SUCCESS,           "Success"},
1646         { SRB_STATUS_ABORTED,           "Aborted Command"},
1647         { SRB_STATUS_ABORT_FAILED,      "Abort Failed"},
1648         { SRB_STATUS_ERROR,             "Error Event"},
1649         { SRB_STATUS_BUSY,              "Device Busy"},
1650         { SRB_STATUS_INVALID_REQUEST,   "Invalid Request"},
1651         { SRB_STATUS_INVALID_PATH_ID,   "Invalid Path ID"},
1652         { SRB_STATUS_NO_DEVICE,         "No Device"},
1653         { SRB_STATUS_TIMEOUT,           "Timeout"},
1654         { SRB_STATUS_SELECTION_TIMEOUT, "Selection Timeout"},
1655         { SRB_STATUS_COMMAND_TIMEOUT,   "Command Timeout"},
1656         { SRB_STATUS_MESSAGE_REJECTED,  "Message Rejected"},
1657         { SRB_STATUS_BUS_RESET,         "Bus Reset"},
1658         { SRB_STATUS_PARITY_ERROR,      "Parity Error"},
1659         { SRB_STATUS_REQUEST_SENSE_FAILED,"Request Sense Failed"},
1660         { SRB_STATUS_NO_HBA,            "No HBA"},
1661         { SRB_STATUS_DATA_OVERRUN,      "Data Overrun/Data Underrun"},
1662         { SRB_STATUS_UNEXPECTED_BUS_FREE,"Unexpected Bus Free"},
1663         { SRB_STATUS_PHASE_SEQUENCE_FAILURE,"Phase Error"},
1664         { SRB_STATUS_BAD_SRB_BLOCK_LENGTH,"Bad Srb Block Length"},
1665         { SRB_STATUS_REQUEST_FLUSHED,   "Request Flushed"},
1666         { SRB_STATUS_DELAYED_RETRY,     "Delayed Retry"},
1667         { SRB_STATUS_INVALID_LUN,       "Invalid LUN"},
1668         { SRB_STATUS_INVALID_TARGET_ID, "Invalid TARGET ID"},
1669         { SRB_STATUS_BAD_FUNCTION,      "Bad Function"},
1670         { SRB_STATUS_ERROR_RECOVERY,    "Error Recovery"},
1671         { SRB_STATUS_NOT_STARTED,       "Not Started"},
1672         { SRB_STATUS_NOT_IN_USE,        "Not In Use"},
1673         { SRB_STATUS_FORCE_ABORT,       "Force Abort"},
1674         { SRB_STATUS_DOMAIN_VALIDATION_FAIL,"Domain Validation Failure"},
1675         { 0xff,                         "Unknown Error"}
1676 };
1677
1678 char *aac_get_status_string(u32 status)
1679 {
1680         int i;
1681
1682         for(i=0; i < (sizeof(srb_status_info)/sizeof(struct aac_srb_status_info)); i++ ){
1683                 if(srb_status_info[i].status == status){
1684                         return srb_status_info[i].str;
1685                 }
1686         }
1687
1688         return "Bad Status Code";
1689 }
1690
1691 #endif