drivers/scsi/aacraid/aachba.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *      Adaptec AAC series RAID controller driver
   4  *      (c) Copyright 2001 Red Hat Inc.
   5  *
   6  * based on the old aacraid driver that is..
   7  * Adaptec aacraid device driver for Linux.
   8  *
   9  * Copyright (c) 2000-2010 Adaptec, Inc.
  10  *               2010-2015 PMC-Sierra, Inc. ([email protected])
  11  *               2016-2017 Microsemi Corp. ([email protected])
  12  *
  13  * Module Name:
  14  *  aachba.c
  15  *
  16  * Abstract: Contains Interfaces to manage IOs.
  17  */
  18
  19 #include <linux/kernel.h>
  20 #include <linux/init.h>
  21 #include <linux/types.h>
  22 #include <linux/pci.h>
  23 #include <linux/spinlock.h>
  24 #include <linux/slab.h>
  25 #include <linux/completion.h>
  26 #include <linux/blkdev.h>
  27 #include <linux/uaccess.h>
  28 #include <linux/module.h>
  29
  30 #include <linux/unaligned.h>
  31
  32 #include <scsi/scsi.h>
  33 #include <scsi/scsi_cmnd.h>
  34 #include <scsi/scsi_device.h>
  35 #include <scsi/scsi_host.h>
  36
  37 #include "aacraid.h"
  38
  39 /* values for inqd_pdt: Peripheral device type in plain English */
  40 #define INQD_PDT_DA     0x00    /* Direct-access (DISK) device */
  41 #define INQD_PDT_PROC   0x03    /* Processor device */
  42 #define INQD_PDT_CHNGR  0x08    /* Changer (jukebox, scsi2) */
  43 #define INQD_PDT_COMM   0x09    /* Communication device (scsi2) */
  44 #define INQD_PDT_NOLUN2 0x1f    /* Unknown Device (scsi2) */
  45 #define INQD_PDT_NOLUN  0x7f    /* Logical Unit Not Present */
  46
  47 #define INQD_PDT_DMASK  0x1F    /* Peripheral Device Type Mask */
  48 #define INQD_PDT_QMASK  0xE0    /* Peripheral Device Qualifer Mask */
  49
  50 /*
  51  *      Sense codes
  52  */
  53
  54 #define SENCODE_NO_SENSE                        0x00
  55 #define SENCODE_END_OF_DATA                     0x00
  56 #define SENCODE_BECOMING_READY                  0x04
  57 #define SENCODE_INIT_CMD_REQUIRED               0x04
  58 #define SENCODE_UNRECOVERED_READ_ERROR          0x11
  59 #define SENCODE_PARAM_LIST_LENGTH_ERROR         0x1A
  60 #define SENCODE_INVALID_COMMAND                 0x20
  61 #define SENCODE_LBA_OUT_OF_RANGE                0x21
  62 #define SENCODE_INVALID_CDB_FIELD               0x24
  63 #define SENCODE_LUN_NOT_SUPPORTED               0x25
  64 #define SENCODE_INVALID_PARAM_FIELD             0x26
  65 #define SENCODE_PARAM_NOT_SUPPORTED             0x26
  66 #define SENCODE_PARAM_VALUE_INVALID             0x26
  67 #define SENCODE_RESET_OCCURRED                  0x29
  68 #define SENCODE_LUN_NOT_SELF_CONFIGURED_YET     0x3E
  69 #define SENCODE_INQUIRY_DATA_CHANGED            0x3F
  70 #define SENCODE_SAVING_PARAMS_NOT_SUPPORTED     0x39
  71 #define SENCODE_DIAGNOSTIC_FAILURE              0x40
  72 #define SENCODE_INTERNAL_TARGET_FAILURE         0x44
  73 #define SENCODE_INVALID_MESSAGE_ERROR           0x49
  74 #define SENCODE_LUN_FAILED_SELF_CONFIG          0x4c
  75 #define SENCODE_OVERLAPPED_COMMAND              0x4E
  76
  77 /*
  78  *      Additional sense codes
  79  */
  80
  81 #define ASENCODE_NO_SENSE                       0x00
  82 #define ASENCODE_END_OF_DATA                    0x05
  83 #define ASENCODE_BECOMING_READY                 0x01
  84 #define ASENCODE_INIT_CMD_REQUIRED              0x02
  85 #define ASENCODE_PARAM_LIST_LENGTH_ERROR        0x00
  86 #define ASENCODE_INVALID_COMMAND                0x00
  87 #define ASENCODE_LBA_OUT_OF_RANGE               0x00
  88 #define ASENCODE_INVALID_CDB_FIELD              0x00
  89 #define ASENCODE_LUN_NOT_SUPPORTED              0x00
  90 #define ASENCODE_INVALID_PARAM_FIELD            0x00
  91 #define ASENCODE_PARAM_NOT_SUPPORTED            0x01
  92 #define ASENCODE_PARAM_VALUE_INVALID            0x02
  93 #define ASENCODE_RESET_OCCURRED                 0x00
  94 #define ASENCODE_LUN_NOT_SELF_CONFIGURED_YET    0x00
  95 #define ASENCODE_INQUIRY_DATA_CHANGED           0x03
  96 #define ASENCODE_SAVING_PARAMS_NOT_SUPPORTED    0x00
  97 #define ASENCODE_DIAGNOSTIC_FAILURE             0x80
  98 #define ASENCODE_INTERNAL_TARGET_FAILURE        0x00
  99 #define ASENCODE_INVALID_MESSAGE_ERROR          0x00
 100 #define ASENCODE_LUN_FAILED_SELF_CONFIG         0x00
 101 #define ASENCODE_OVERLAPPED_COMMAND             0x00
 102
 103 #define BYTE0(x) (unsigned char)(x)
 104 #define BYTE1(x) (unsigned char)((x) >> 8)
 105 #define BYTE2(x) (unsigned char)((x) >> 16)
 106 #define BYTE3(x) (unsigned char)((x) >> 24)
 107
 108 /* MODE_SENSE data format */
 109 typedef struct {
 110         struct {
 111                 u8      data_length;
 112                 u8      med_type;
 113                 u8      dev_par;
 114                 u8      bd_length;
 115         } __attribute__((packed)) hd;
 116         struct {
 117                 u8      dens_code;
 118                 u8      block_count[3];
 119                 u8      reserved;
 120                 u8      block_length[3];
 121         } __attribute__((packed)) bd;
 122                 u8      mpc_buf[3];
 123 } __attribute__((packed)) aac_modep_data;
 124
 125 /* MODE_SENSE_10 data format */
 126 typedef struct {
 127         struct {
 128                 u8      data_length[2];
 129                 u8      med_type;
 130                 u8      dev_par;
 131                 u8      rsrvd[2];
 132                 u8      bd_length[2];
 133         } __attribute__((packed)) hd;
 134         struct {
 135                 u8      dens_code;
 136                 u8      block_count[3];
 137                 u8      reserved;
 138                 u8      block_length[3];
 139         } __attribute__((packed)) bd;
 140                 u8      mpc_buf[3];
 141 } __attribute__((packed)) aac_modep10_data;
 142
 143 /*------------------------------------------------------------------------------
 144  *              S T R U C T S / T Y P E D E F S
 145  *----------------------------------------------------------------------------*/
 146 /* SCSI inquiry data */
 147 struct inquiry_data {
 148         u8 inqd_pdt;    /* Peripheral qualifier | Peripheral Device Type */
 149         u8 inqd_dtq;    /* RMB | Device Type Qualifier */
 150         u8 inqd_ver;    /* ISO version | ECMA version | ANSI-approved version */
 151         u8 inqd_rdf;    /* AENC | TrmIOP | Response data format */
 152         u8 inqd_len;    /* Additional length (n-4) */
 153         u8 inqd_pad1[2];/* Reserved - must be zero */
 154         u8 inqd_pad2;   /* RelAdr | WBus32 | WBus16 |  Sync  | Linked |Reserved| CmdQue | SftRe */
 155         u8 inqd_vid[8]; /* Vendor ID */
 156         u8 inqd_pid[16];/* Product ID */
 157         u8 inqd_prl[4]; /* Product Revision Level */
 158 };
 159
 160 /* Added for VPD 0x83 */
 161 struct  tvpd_id_descriptor_type_1 {
 162         u8 codeset:4;           /* VPD_CODE_SET */
 163         u8 reserved:4;
 164         u8 identifiertype:4;    /* VPD_IDENTIFIER_TYPE */
 165         u8 reserved2:4;
 166         u8 reserved3;
 167         u8 identifierlength;
 168         u8 venid[8];
 169         u8 productid[16];
 170         u8 serialnumber[8];     /* SN in ASCII */
 171
 172 };
 173
 174 struct tvpd_id_descriptor_type_2 {
 175         u8 codeset:4;           /* VPD_CODE_SET */
 176         u8 reserved:4;
 177         u8 identifiertype:4;    /* VPD_IDENTIFIER_TYPE */
 178         u8 reserved2:4;
 179         u8 reserved3;
 180         u8 identifierlength;
 181         struct teu64id {
 182                 u32 Serial;
 183                  /* The serial number supposed to be 40 bits,
 184                   * bit we only support 32, so make the last byte zero. */
 185                 u8 reserved;
 186                 u8 venid[3];
 187         } eu64id;
 188
 189 };
 190
 191 struct tvpd_id_descriptor_type_3 {
 192         u8 codeset : 4;          /* VPD_CODE_SET */
 193         u8 reserved : 4;
 194         u8 identifiertype : 4;   /* VPD_IDENTIFIER_TYPE */
 195         u8 reserved2 : 4;
 196         u8 reserved3;
 197         u8 identifierlength;
 198         u8 Identifier[16];
 199 };
 200
 201 struct tvpd_page83 {
 202         u8 DeviceType:5;
 203         u8 DeviceTypeQualifier:3;
 204         u8 PageCode;
 205         u8 reserved;
 206         u8 PageLength;
 207         struct tvpd_id_descriptor_type_1 type1;
 208         struct tvpd_id_descriptor_type_2 type2;
 209         struct tvpd_id_descriptor_type_3 type3;
 210 };
 211
 212 /*
 213  *              M O D U L E   G L O B A L S
 214  */
 215
 216 static long aac_build_sg(struct scsi_cmnd *scsicmd, struct sgmap *sgmap);
 217 static long aac_build_sg64(struct scsi_cmnd *scsicmd, struct sgmap64 *psg);
 218 static long aac_build_sgraw(struct scsi_cmnd *scsicmd, struct sgmapraw *psg);
 219 static long aac_build_sgraw2(struct scsi_cmnd *scsicmd,
 220                                 struct aac_raw_io2 *rio2, int sg_max);
 221 static long aac_build_sghba(struct scsi_cmnd *scsicmd,
 222                                 struct aac_hba_cmd_req *hbacmd,
 223                                 int sg_max, u64 sg_address);
 224 static int aac_convert_sgraw2(struct aac_raw_io2 *rio2,
 225                                 int pages, int nseg, int nseg_new);
 226 static void aac_probe_container_scsi_done(struct scsi_cmnd *scsi_cmnd);
 227 static int aac_send_srb_fib(struct scsi_cmnd* scsicmd);
 228 static int aac_send_hba_fib(struct scsi_cmnd *scsicmd);
 229 #ifdef AAC_DETAILED_STATUS_INFO
 230 static char *aac_get_status_string(u32 status);
 231 #endif
 232
 233 /*
 234  *      Non dasd selection is handled entirely in aachba now
 235  */
 236
 237 static int nondasd = -1;
 238 static int aac_cache = 2;       /* WCE=0 to avoid performance problems */
 239 static int dacmode = -1;
 240 int aac_msi;
 241 int aac_commit = -1;
 242 int startup_timeout = 180;
 243 int aif_timeout = 120;
 244 int aac_sync_mode;  /* Only Sync. transfer - disabled */
 245 static int aac_convert_sgl = 1; /* convert non-conformable s/g list - enabled */
 246
 247 module_param(aac_sync_mode, int, S_IRUGO|S_IWUSR);
 248 MODULE_PARM_DESC(aac_sync_mode, "Force sync. transfer mode"
 249         " 0=off, 1=on");
 250 module_param(aac_convert_sgl, int, S_IRUGO|S_IWUSR);
 251 MODULE_PARM_DESC(aac_convert_sgl, "Convert non-conformable s/g list"
 252         " 0=off, 1=on");
 253 module_param(nondasd, int, S_IRUGO|S_IWUSR);
 254 MODULE_PARM_DESC(nondasd, "Control scanning of hba for nondasd devices."
 255         " 0=off, 1=on");
 256 module_param_named(cache, aac_cache, int, S_IRUGO|S_IWUSR);
 257 MODULE_PARM_DESC(cache, "Disable Queue Flush commands:\n"
 258         "\tbit 0 - Disable FUA in WRITE SCSI commands\n"
 259         "\tbit 1 - Disable SYNCHRONIZE_CACHE SCSI command\n"
 260         "\tbit 2 - Disable only if Battery is protecting Cache");
 261 module_param(dacmode, int, S_IRUGO|S_IWUSR);
 262 MODULE_PARM_DESC(dacmode, "Control whether dma addressing is using 64 bit DAC."
 263         " 0=off, 1=on");
 264 module_param_named(commit, aac_commit, int, S_IRUGO|S_IWUSR);
 265 MODULE_PARM_DESC(commit, "Control whether a COMMIT_CONFIG is issued to the"
 266         " adapter for foreign arrays.\n"
 267         "This is typically needed in systems that do not have a BIOS."
 268         " 0=off, 1=on");
 269 module_param_named(msi, aac_msi, int, S_IRUGO|S_IWUSR);
 270 MODULE_PARM_DESC(msi, "IRQ handling."
 271         " 0=PIC(default), 1=MSI, 2=MSI-X)");
 272 module_param(startup_timeout, int, S_IRUGO|S_IWUSR);
 273 MODULE_PARM_DESC(startup_timeout, "The duration of time in seconds to wait for"
 274         " adapter to have its kernel up and\n"
 275         "running. This is typically adjusted for large systems that do not"
 276         " have a BIOS.");
 277 module_param(aif_timeout, int, S_IRUGO|S_IWUSR);
 278 MODULE_PARM_DESC(aif_timeout, "The duration of time in seconds to wait for"
 279         " applications to pick up AIFs before\n"
 280         "deregistering them. This is typically adjusted for heavily burdened"
 281         " systems.");
 282
 283 int aac_fib_dump;
 284 module_param(aac_fib_dump, int, 0644);
 285 MODULE_PARM_DESC(aac_fib_dump, "Dump controller fibs prior to IOP_RESET 0=off, 1=on");
 286
 287 int numacb = -1;
 288 module_param(numacb, int, S_IRUGO|S_IWUSR);
 289 MODULE_PARM_DESC(numacb, "Request a limit to the number of adapter control"
 290         " blocks (FIB) allocated. Valid values are 512 and down. Default is"
 291         " to use suggestion from Firmware.");
 292
 293 static int acbsize = -1;
 294 module_param(acbsize, int, S_IRUGO|S_IWUSR);
 295 MODULE_PARM_DESC(acbsize, "Request a specific adapter control block (FIB)"
 296         " size. Valid values are 512, 2048, 4096 and 8192. Default is to use"
 297         " suggestion from Firmware.");
 298
 299 int update_interval = 30 * 60;
 300 module_param(update_interval, int, S_IRUGO|S_IWUSR);
 301 MODULE_PARM_DESC(update_interval, "Interval in seconds between time sync"
 302         " updates issued to adapter.");
 303
 304 int check_interval = 60;
 305 module_param(check_interval, int, S_IRUGO|S_IWUSR);
 306 MODULE_PARM_DESC(check_interval, "Interval in seconds between adapter health"
 307         " checks.");
 308
 309 int aac_check_reset = 1;
 310 module_param_named(check_reset, aac_check_reset, int, S_IRUGO|S_IWUSR);
 311 MODULE_PARM_DESC(check_reset, "If adapter fails health check, reset the"
 312         " adapter. a value of -1 forces the reset to adapters programmed to"
 313         " ignore it.");
 314
 315 int expose_physicals = -1;
 316 module_param(expose_physicals, int, S_IRUGO|S_IWUSR);
 317 MODULE_PARM_DESC(expose_physicals, "Expose physical components of the arrays."
 318         " -1=protect 0=off, 1=on");
 319
 320 int aac_reset_devices;
 321 module_param_named(reset_devices, aac_reset_devices, int, S_IRUGO|S_IWUSR);
 322 MODULE_PARM_DESC(reset_devices, "Force an adapter reset at initialization.");
 323
 324 static int aac_wwn = 1;
 325 module_param_named(wwn, aac_wwn, int, S_IRUGO|S_IWUSR);
 326 MODULE_PARM_DESC(wwn, "Select a WWN type for the arrays:\n"
 327         "\t0 - Disable\n"
 328         "\t1 - Array Meta Data Signature (default)\n"
 329         "\t2 - Adapter Serial Number");
 330
 331
 332 static inline int aac_valid_context(struct scsi_cmnd *scsicmd,
 333                 struct fib *fibptr) {
 334         struct scsi_device *device;
 335
 336         if (unlikely(!scsicmd)) {
 337                 dprintk((KERN_WARNING "aac_valid_context: scsi command corrupt\n"));
 338                 aac_fib_complete(fibptr);
 339                 return 0;
 340         }
 341         aac_priv(scsicmd)->owner = AAC_OWNER_MIDLEVEL;
 342         device = scsicmd->device;
 343         if (unlikely(!device)) {
 344                 dprintk((KERN_WARNING "aac_valid_context: scsi device corrupt\n"));
 345                 aac_fib_complete(fibptr);
 346                 return 0;
 347         }
 348         return 1;
 349 }
 350
 351 /**
 352  *      aac_get_config_status   -       check the adapter configuration
 353  *      @dev: aac driver data
 354  *      @commit_flag: force sending CT_COMMIT_CONFIG
 355  *
 356  *      Query config status, and commit the configuration if needed.
 357  */
 358 int aac_get_config_status(struct aac_dev *dev, int commit_flag)
 359 {
 360         int status = 0;
 361         struct fib * fibptr;
 362
 363         if (!(fibptr = aac_fib_alloc(dev)))
 364                 return -ENOMEM;
 365
 366         aac_fib_init(fibptr);
 367         {
 368                 struct aac_get_config_status *dinfo;
 369                 dinfo = (struct aac_get_config_status *) fib_data(fibptr);
 370
 371                 dinfo->command = cpu_to_le32(VM_ContainerConfig);
 372                 dinfo->type = cpu_to_le32(CT_GET_CONFIG_STATUS);
 373                 dinfo->count = cpu_to_le32(sizeof(((struct aac_get_config_status_resp *)NULL)->data));
 374         }
 375
 376         status = aac_fib_send(ContainerCommand,
 377                             fibptr,
 378                             sizeof (struct aac_get_config_status),
 379                             FsaNormal,
 380                             1, 1,
 381                             NULL, NULL);
 382         if (status < 0) {
 383                 printk(KERN_WARNING "aac_get_config_status: SendFIB failed.\n");
 384         } else {
 385                 struct aac_get_config_status_resp *reply
 386                   = (struct aac_get_config_status_resp *) fib_data(fibptr);
 387                 dprintk((KERN_WARNING
 388                   "aac_get_config_status: response=%d status=%d action=%d\n",
 389                   le32_to_cpu(reply->response),
 390                   le32_to_cpu(reply->status),
 391                   le32_to_cpu(reply->data.action)));
 392                 if ((le32_to_cpu(reply->response) != ST_OK) ||
 393                      (le32_to_cpu(reply->status) != CT_OK) ||
 394                      (le32_to_cpu(reply->data.action) > CFACT_PAUSE)) {
 395                         printk(KERN_WARNING "aac_get_config_status: Will not issue the Commit Configuration\n");
 396                         status = -EINVAL;
 397                 }
 398         }
 399         /* Do not set XferState to zero unless receives a response from F/W */
 400         if (status >= 0)
 401                 aac_fib_complete(fibptr);
 402
 403         /* Send a CT_COMMIT_CONFIG to enable discovery of devices */
 404         if (status >= 0) {
 405                 if ((aac_commit == 1) || commit_flag) {
 406                         struct aac_commit_config * dinfo;
 407                         aac_fib_init(fibptr);
 408                         dinfo = (struct aac_commit_config *) fib_data(fibptr);
 409
 410                         dinfo->command = cpu_to_le32(VM_ContainerConfig);
 411                         dinfo->type = cpu_to_le32(CT_COMMIT_CONFIG);
 412
 413                         status = aac_fib_send(ContainerCommand,
 414                                     fibptr,
 415                                     sizeof (struct aac_commit_config),
 416                                     FsaNormal,
 417                                     1, 1,
 418                                     NULL, NULL);
 419                         /* Do not set XferState to zero unless
 420                          * receives a response from F/W */
 421                         if (status >= 0)
 422                                 aac_fib_complete(fibptr);
 423                 } else if (aac_commit == 0) {
 424                         printk(KERN_WARNING
 425                           "aac_get_config_status: Foreign device configurations are being ignored\n");
 426                 }
 427         }
 428         /* FIB should be freed only after getting the response from the F/W */
 429         if (status != -ERESTARTSYS)
 430                 aac_fib_free(fibptr);
 431         return status;
 432 }
 433
 434 static void aac_expose_phy_device(struct scsi_cmnd *scsicmd)
 435 {
 436         char inq_data;
 437         scsi_sg_copy_to_buffer(scsicmd,  &inq_data, sizeof(inq_data));
 438         if ((inq_data & 0x20) && (inq_data & 0x1f) == TYPE_DISK) {
 439                 inq_data &= 0xdf;
 440                 scsi_sg_copy_from_buffer(scsicmd, &inq_data, sizeof(inq_data));
 441         }
 442 }
 443
 444 /**
 445  *      aac_get_containers      -       list containers
 446  *      @dev: aac driver data
 447  *
 448  *      Make a list of all containers on this controller
 449  */
 450 int aac_get_containers(struct aac_dev *dev)
 451 {
 452         struct fsa_dev_info *fsa_dev_ptr;
 453         u32 index;
 454         int status = 0;
 455         struct fib * fibptr;
 456         struct aac_get_container_count *dinfo;
 457         struct aac_get_container_count_resp *dresp;
 458         int maximum_num_containers = MAXIMUM_NUM_CONTAINERS;
 459
 460         if (!(fibptr = aac_fib_alloc(dev)))
 461                 return -ENOMEM;
 462
 463         aac_fib_init(fibptr);
 464         dinfo = (struct aac_get_container_count *) fib_data(fibptr);
 465         dinfo->command = cpu_to_le32(VM_ContainerConfig);
 466         dinfo->type = cpu_to_le32(CT_GET_CONTAINER_COUNT);
 467
 468         status = aac_fib_send(ContainerCommand,
 469                     fibptr,
 470                     sizeof (struct aac_get_container_count),
 471                     FsaNormal,
 472                     1, 1,
 473                     NULL, NULL);
 474         if (status >= 0) {
 475                 dresp = (struct aac_get_container_count_resp *)fib_data(fibptr);
 476                 maximum_num_containers = le32_to_cpu(dresp->ContainerSwitchEntries);
 477                 if (fibptr->dev->supplement_adapter_info.supported_options2 &
 478                     AAC_OPTION_SUPPORTED_240_VOLUMES) {
 479                         maximum_num_containers =
 480                                 le32_to_cpu(dresp->MaxSimpleVolumes);
 481                 }
 482                 aac_fib_complete(fibptr);
 483         }
 484         /* FIB should be freed only after getting the response from the F/W */
 485         if (status != -ERESTARTSYS)
 486                 aac_fib_free(fibptr);
 487
 488         if (maximum_num_containers < MAXIMUM_NUM_CONTAINERS)
 489                 maximum_num_containers = MAXIMUM_NUM_CONTAINERS;
 490         if (dev->fsa_dev == NULL ||
 491                 dev->maximum_num_containers != maximum_num_containers) {
 492
 493                 fsa_dev_ptr = dev->fsa_dev;
 494
 495                 dev->fsa_dev = kcalloc(maximum_num_containers,
 496                                         sizeof(*fsa_dev_ptr), GFP_KERNEL);
 497
 498                 kfree(fsa_dev_ptr);
 499                 fsa_dev_ptr = NULL;
 500
 501
 502                 if (!dev->fsa_dev)
 503                         return -ENOMEM;
 504
 505                 dev->maximum_num_containers = maximum_num_containers;
 506         }
 507         for (index = 0; index < dev->maximum_num_containers; index++) {
 508                 dev->fsa_dev[index].devname[0] = '\0';
 509                 dev->fsa_dev[index].valid = 0;
 510
 511                 status = aac_probe_container(dev, index);
 512
 513                 if (status < 0) {
 514                         printk(KERN_WARNING "aac_get_containers: SendFIB failed.\n");
 515                         break;
 516                 }
 517         }
 518         return status;
 519 }
 520
 521 static void aac_scsi_done(struct scsi_cmnd *scmd)
 522 {
 523         if (scmd->device->request_queue) {
 524                 /* SCSI command has been submitted by the SCSI mid-layer. */
 525                 scsi_done(scmd);
 526         } else {
 527                 /* SCSI command has been submitted by aac_probe_container(). */
 528                 aac_probe_container_scsi_done(scmd);
 529         }
 530 }
 531
 532 static void get_container_name_callback(void *context, struct fib * fibptr)
 533 {
 534         struct aac_get_name_resp * get_name_reply;
 535         struct scsi_cmnd * scsicmd;
 536
 537         scsicmd = (struct scsi_cmnd *) context;
 538
 539         if (!aac_valid_context(scsicmd, fibptr))
 540                 return;
 541
 542         dprintk((KERN_DEBUG "get_container_name_callback[cpu %d]: t = %ld.\n", smp_processor_id(), jiffies));
 543         BUG_ON(fibptr == NULL);
 544
 545         get_name_reply = (struct aac_get_name_resp *) fib_data(fibptr);
 546         /* Failure is irrelevant, using default value instead */
 547         if ((le32_to_cpu(get_name_reply->status) == CT_OK)
 548          && (get_name_reply->data[0] != '\0')) {
 549                 char *sp = get_name_reply->data;
 550                 int data_size = sizeof_field(struct aac_get_name_resp, data);
 551
 552                 sp[data_size - 1] = '\0';
 553                 while (*sp == ' ')
 554                         ++sp;
 555                 if (*sp) {
 556                         struct inquiry_data inq;
 557                         char d[sizeof(((struct inquiry_data *)NULL)->inqd_pid)];
 558                         int count = sizeof(d);
 559                         char *dp = d;
 560                         do {
 561                                 *dp++ = (*sp) ? *sp++ : ' ';
 562                         } while (--count > 0);
 563
 564                         scsi_sg_copy_to_buffer(scsicmd, &inq, sizeof(inq));
 565                         memcpy(inq.inqd_pid, d, sizeof(d));
 566                         scsi_sg_copy_from_buffer(scsicmd, &inq, sizeof(inq));
 567                 }
 568         }
 569
 570         scsicmd->result = DID_OK << 16 | SAM_STAT_GOOD;
 571
 572         aac_fib_complete(fibptr);
 573         aac_scsi_done(scsicmd);
 574 }
 575
 576 /*
 577  *      aac_get_container_name  -       get container name, none blocking.
 578  */
 579 static int aac_get_container_name(struct scsi_cmnd * scsicmd)
 580 {
 581         int status;
 582         int data_size;
 583         struct aac_get_name *dinfo;
 584         struct fib * cmd_fibcontext;
 585         struct aac_dev * dev;
 586
 587         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
 588
 589         data_size = sizeof_field(struct aac_get_name_resp, data);
 590
 591         cmd_fibcontext = aac_fib_alloc_tag(dev, scsicmd);
 592
 593         aac_fib_init(cmd_fibcontext);
 594         dinfo = (struct aac_get_name *) fib_data(cmd_fibcontext);
 595         aac_priv(scsicmd)->owner = AAC_OWNER_FIRMWARE;
 596
 597         dinfo->command = cpu_to_le32(VM_ContainerConfig);
 598         dinfo->type = cpu_to_le32(CT_READ_NAME);
 599         dinfo->cid = cpu_to_le32(scmd_id(scsicmd));
 600         dinfo->count = cpu_to_le32(data_size - 1);
 601
 602         status = aac_fib_send(ContainerCommand,
 603                   cmd_fibcontext,
 604                   sizeof(struct aac_get_name_resp),
 605                   FsaNormal,
 606                   0, 1,
 607                   (fib_callback)get_container_name_callback,
 608                   (void *) scsicmd);
 609
 610         /*
 611          *      Check that the command queued to the controller
 612          */
 613         if (status == -EINPROGRESS)
 614                 return 0;
 615
 616         printk(KERN_WARNING "aac_get_container_name: aac_fib_send failed with status: %d.\n", status);
 617         aac_fib_complete(cmd_fibcontext);
 618         return -1;
 619 }
 620
 621 static int aac_probe_container_callback2(struct scsi_cmnd * scsicmd)
 622 {
 623         struct fsa_dev_info *fsa_dev_ptr = ((struct aac_dev *)(scsicmd->device->host->hostdata))->fsa_dev;
 624
 625         if ((fsa_dev_ptr[scmd_id(scsicmd)].valid & 1))
 626                 return aac_scsi_cmd(scsicmd);
 627
 628         scsicmd->result = DID_NO_CONNECT << 16;
 629         aac_scsi_done(scsicmd);
 630         return 0;
 631 }
 632
 633 static void _aac_probe_container2(void * context, struct fib * fibptr)
 634 {
 635         struct fsa_dev_info *fsa_dev_ptr;
 636         int (*callback)(struct scsi_cmnd *);
 637         struct scsi_cmnd *scsicmd = context;
 638         struct aac_cmd_priv *cmd_priv = aac_priv(scsicmd);
 639         int i;
 640
 641
 642         if (!aac_valid_context(scsicmd, fibptr))
 643                 return;
 644
 645         cmd_priv->status = 0;
 646         fsa_dev_ptr = fibptr->dev->fsa_dev;
 647         if (fsa_dev_ptr) {
 648                 struct aac_mount * dresp = (struct aac_mount *) fib_data(fibptr);
 649                 __le32 sup_options2;
 650
 651                 fsa_dev_ptr += scmd_id(scsicmd);
 652                 sup_options2 =
 653                         fibptr->dev->supplement_adapter_info.supported_options2;
 654
 655                 if ((le32_to_cpu(dresp->status) == ST_OK) &&
 656                     (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE) &&
 657                     (le32_to_cpu(dresp->mnt[0].state) != FSCS_HIDDEN)) {
 658                         if (!(sup_options2 & AAC_OPTION_VARIABLE_BLOCK_SIZE)) {
 659                                 dresp->mnt[0].fileinfo.bdevinfo.block_size = 0x200;
 660                                 fsa_dev_ptr->block_size = 0x200;
 661                         } else {
 662                                 fsa_dev_ptr->block_size =
 663                                         le32_to_cpu(dresp->mnt[0].fileinfo.bdevinfo.block_size);
 664                         }
 665                         for (i = 0; i < 16; i++)
 666                                 fsa_dev_ptr->identifier[i] =
 667                                         dresp->mnt[0].fileinfo.bdevinfo
 668                                                                 .identifier[i];
 669                         fsa_dev_ptr->valid = 1;
 670                         /* sense_key holds the current state of the spin-up */
 671                         if (dresp->mnt[0].state & cpu_to_le32(FSCS_NOT_READY))
 672                                 fsa_dev_ptr->sense_data.sense_key = NOT_READY;
 673                         else if (fsa_dev_ptr->sense_data.sense_key == NOT_READY)
 674                                 fsa_dev_ptr->sense_data.sense_key = NO_SENSE;
 675                         fsa_dev_ptr->type = le32_to_cpu(dresp->mnt[0].vol);
 676                         fsa_dev_ptr->size
 677                           = ((u64)le32_to_cpu(dresp->mnt[0].capacity)) +
 678                             (((u64)le32_to_cpu(dresp->mnt[0].capacityhigh)) << 32);
 679                         fsa_dev_ptr->ro = ((le32_to_cpu(dresp->mnt[0].state) & FSCS_READONLY) != 0);
 680                 }
 681                 if ((fsa_dev_ptr->valid & 1) == 0)
 682                         fsa_dev_ptr->valid = 0;
 683                 cmd_priv->status = le32_to_cpu(dresp->count);
 684         }
 685         aac_fib_complete(fibptr);
 686         aac_fib_free(fibptr);
 687         callback = cmd_priv->callback;
 688         cmd_priv->callback = NULL;
 689         (*callback)(scsicmd);
 690         return;
 691 }
 692
 693 static void _aac_probe_container1(void * context, struct fib * fibptr)
 694 {
 695         struct scsi_cmnd * scsicmd;
 696         struct aac_mount * dresp;
 697         struct aac_query_mount *dinfo;
 698         int status;
 699
 700         dresp = (struct aac_mount *) fib_data(fibptr);
 701         if (!aac_supports_2T(fibptr->dev)) {
 702                 dresp->mnt[0].capacityhigh = 0;
 703                 if ((le32_to_cpu(dresp->status) == ST_OK) &&
 704                         (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE)) {
 705                         _aac_probe_container2(context, fibptr);
 706                         return;
 707                 }
 708         }
 709         scsicmd = (struct scsi_cmnd *) context;
 710
 711         if (!aac_valid_context(scsicmd, fibptr))
 712                 return;
 713
 714         aac_fib_init(fibptr);
 715
 716         dinfo = (struct aac_query_mount *)fib_data(fibptr);
 717
 718         if (fibptr->dev->supplement_adapter_info.supported_options2 &
 719             AAC_OPTION_VARIABLE_BLOCK_SIZE)
 720                 dinfo->command = cpu_to_le32(VM_NameServeAllBlk);
 721         else
 722                 dinfo->command = cpu_to_le32(VM_NameServe64);
 723
 724         dinfo->count = cpu_to_le32(scmd_id(scsicmd));
 725         dinfo->type = cpu_to_le32(FT_FILESYS);
 726         aac_priv(scsicmd)->owner = AAC_OWNER_FIRMWARE;
 727
 728         status = aac_fib_send(ContainerCommand,
 729                           fibptr,
 730                           sizeof(struct aac_query_mount),
 731                           FsaNormal,
 732                           0, 1,
 733                           _aac_probe_container2,
 734                           (void *) scsicmd);
 735         /*
 736          *      Check that the command queued to the controller
 737          */
 738         if (status < 0 && status != -EINPROGRESS) {
 739                 /* Inherit results from VM_NameServe, if any */
 740                 dresp->status = cpu_to_le32(ST_OK);
 741                 _aac_probe_container2(context, fibptr);
 742         }
 743 }
 744
 745 static int _aac_probe_container(struct scsi_cmnd * scsicmd, int (*callback)(struct scsi_cmnd *))
 746 {
 747         struct aac_cmd_priv *cmd_priv = aac_priv(scsicmd);
 748         struct fib * fibptr;
 749         int status = -ENOMEM;
 750
 751         if ((fibptr = aac_fib_alloc((struct aac_dev *)scsicmd->device->host->hostdata))) {
 752                 struct aac_query_mount *dinfo;
 753
 754                 aac_fib_init(fibptr);
 755
 756                 dinfo = (struct aac_query_mount *)fib_data(fibptr);
 757
 758                 if (fibptr->dev->supplement_adapter_info.supported_options2 &
 759                     AAC_OPTION_VARIABLE_BLOCK_SIZE)
 760                         dinfo->command = cpu_to_le32(VM_NameServeAllBlk);
 761                 else
 762                         dinfo->command = cpu_to_le32(VM_NameServe);
 763
 764                 dinfo->count = cpu_to_le32(scmd_id(scsicmd));
 765                 dinfo->type = cpu_to_le32(FT_FILESYS);
 766                 cmd_priv->callback = callback;
 767                 cmd_priv->owner = AAC_OWNER_FIRMWARE;
 768
 769                 status = aac_fib_send(ContainerCommand,
 770                           fibptr,
 771                           sizeof(struct aac_query_mount),
 772                           FsaNormal,
 773                           0, 1,
 774                           _aac_probe_container1,
 775                           (void *) scsicmd);
 776                 /*
 777                  *      Check that the command queued to the controller
 778                  */
 779                 if (status == -EINPROGRESS)
 780                         return 0;
 781
 782                 if (status < 0) {
 783                         cmd_priv->callback = NULL;
 784                         aac_fib_complete(fibptr);
 785                         aac_fib_free(fibptr);
 786                 }
 787         }
 788         if (status < 0) {
 789                 struct fsa_dev_info *fsa_dev_ptr = ((struct aac_dev *)(scsicmd->device->host->hostdata))->fsa_dev;
 790                 if (fsa_dev_ptr) {
 791                         fsa_dev_ptr += scmd_id(scsicmd);
 792                         if ((fsa_dev_ptr->valid & 1) == 0) {
 793                                 fsa_dev_ptr->valid = 0;
 794                                 return (*callback)(scsicmd);
 795                         }
 796                 }
 797         }
 798         return status;
 799 }
 800
 801 /**
 802  *      aac_probe_container_callback1   -       query a logical volume
 803  *      @scsicmd: the scsi command block
 804  *
 805  *      Queries the controller about the given volume. The volume information
 806  *      is updated in the struct fsa_dev_info structure rather than returned.
 807  */
 808 static int aac_probe_container_callback1(struct scsi_cmnd * scsicmd)
 809 {
 810         scsicmd->device = NULL;
 811         return 0;
 812 }
 813
 814 static void aac_probe_container_scsi_done(struct scsi_cmnd *scsi_cmnd)
 815 {
 816         aac_probe_container_callback1(scsi_cmnd);
 817 }
 818
 819 int aac_probe_container(struct aac_dev *dev, int cid)
 820 {
 821         struct aac_cmd_priv *cmd_priv;
 822         struct scsi_cmnd *scsicmd = kzalloc(sizeof(*scsicmd) + sizeof(*cmd_priv), GFP_KERNEL);
 823         struct scsi_device *scsidev = kzalloc(sizeof(*scsidev), GFP_KERNEL);
 824         int status;
 825
 826         if (!scsicmd || !scsidev) {
 827                 kfree(scsicmd);
 828                 kfree(scsidev);
 829                 return -ENOMEM;
 830         }
 831
 832         scsicmd->device = scsidev;
 833         scsidev->sdev_state = 0;
 834         scsidev->id = cid;
 835         scsidev->host = dev->scsi_host_ptr;
 836
 837         if (_aac_probe_container(scsicmd, aac_probe_container_callback1) == 0)
 838                 while (scsicmd->device == scsidev)
 839                         schedule();
 840         kfree(scsidev);
 841         cmd_priv = aac_priv(scsicmd);
 842         status = cmd_priv->status;
 843         kfree(scsicmd);
 844         return status;
 845 }
 846
 847 /* Local Structure to set SCSI inquiry data strings */
 848 struct scsi_inq {
 849         char vid[8];         /* Vendor ID */
 850         char pid[16];        /* Product ID */
 851         char prl[4];         /* Product Revision Level */
 852 };
 853
 854 /**
 855  *      inqstrcpy       -       string merge
 856  *      @a:     string to copy from
 857  *      @b:     string to copy to
 858  *
 859  *      Copy a String from one location to another
 860  *      without copying \0
 861  */
 862
 863 static void inqstrcpy(char *a, char *b)
 864 {
 865
 866         while (*a != (char)0)
 867                 *b++ = *a++;
 868 }
 869
 870 static char *container_types[] = {
 871         "None",
 872         "Volume",
 873         "Mirror",
 874         "Stripe",
 875         "RAID5",
 876         "SSRW",
 877         "SSRO",
 878         "Morph",
 879         "Legacy",
 880         "RAID4",
 881         "RAID10",
 882         "RAID00",
 883         "V-MIRRORS",
 884         "PSEUDO R4",
 885         "RAID50",
 886         "RAID5D",
 887         "RAID5D0",
 888         "RAID1E",
 889         "RAID6",
 890         "RAID60",
 891         "Unknown"
 892 };
 893
 894 char * get_container_type(unsigned tindex)
 895 {
 896         if (tindex >= ARRAY_SIZE(container_types))
 897                 tindex = ARRAY_SIZE(container_types) - 1;
 898         return container_types[tindex];
 899 }
 900
 901 /* Function: setinqstr
 902  *
 903  * Arguments: [1] pointer to void [1] int
 904  *
 905  * Purpose: Sets SCSI inquiry data strings for vendor, product
 906  * and revision level. Allows strings to be set in platform dependent
 907  * files instead of in OS dependent driver source.
 908  */
 909
 910 static void setinqstr(struct aac_dev *dev, void *data, int tindex)
 911 {
 912         struct scsi_inq *str;
 913         struct aac_supplement_adapter_info *sup_adap_info;
 914
 915         sup_adap_info = &dev->supplement_adapter_info;
 916         str = (struct scsi_inq *)(data); /* cast data to scsi inq block */
 917         memset(str, ' ', sizeof(*str));
 918
 919         if (sup_adap_info->adapter_type_text[0]) {
 920                 int c;
 921                 char *cp;
 922                 char *cname = kmemdup(sup_adap_info->adapter_type_text,
 923                                 sizeof(sup_adap_info->adapter_type_text),
 924                                                                 GFP_ATOMIC);
 925                 if (!cname)
 926                         return;
 927
 928                 cp = cname;
 929                 if ((cp[0] == 'A') && (cp[1] == 'O') && (cp[2] == 'C'))
 930                         inqstrcpy("SMC", str->vid);
 931                 else {
 932                         c = sizeof(str->vid);
 933                         while (*cp && *cp != ' ' && --c)
 934                                 ++cp;
 935                         c = *cp;
 936                         *cp = '\0';
 937                         inqstrcpy(cname, str->vid);
 938                         *cp = c;
 939                         while (*cp && *cp != ' ')
 940                                 ++cp;
 941                 }
 942                 while (*cp == ' ')
 943                         ++cp;
 944                 /* last six chars reserved for vol type */
 945                 if (strlen(cp) > sizeof(str->pid))
 946                         cp[sizeof(str->pid)] = '\0';
 947                 inqstrcpy (cp, str->pid);
 948
 949                 kfree(cname);
 950         } else {
 951                 struct aac_driver_ident *mp = aac_get_driver_ident(dev->cardtype);
 952
 953                 inqstrcpy (mp->vname, str->vid);
 954                 /* last six chars reserved for vol type */
 955                 inqstrcpy (mp->model, str->pid);
 956         }
 957
 958         if (tindex < ARRAY_SIZE(container_types)){
 959                 char *findit = str->pid;
 960
 961                 for ( ; *findit != ' '; findit++); /* walk till we find a space */
 962                 /* RAID is superfluous in the context of a RAID device */
 963                 if (memcmp(findit-4, "RAID", 4) == 0)
 964                         *(findit -= 4) = ' ';
 965                 if (((findit - str->pid) + strlen(container_types[tindex]))
 966                  < (sizeof(str->pid) + sizeof(str->prl)))
 967                         inqstrcpy (container_types[tindex], findit + 1);
 968         }
 969         inqstrcpy ("V1.0", str->prl);
 970 }
 971
 972 static void build_vpd83_type3(struct tvpd_page83 *vpdpage83data,
 973                 struct aac_dev *dev, struct scsi_cmnd *scsicmd)
 974 {
 975         int container;
 976
 977         vpdpage83data->type3.codeset = 1;
 978         vpdpage83data->type3.identifiertype = 3;
 979         vpdpage83data->type3.identifierlength = sizeof(vpdpage83data->type3)
 980                         - 4;
 981
 982         for (container = 0; container < dev->maximum_num_containers;
 983                         container++) {
 984
 985                 if (scmd_id(scsicmd) == container) {
 986                         memcpy(vpdpage83data->type3.Identifier,
 987                                         dev->fsa_dev[container].identifier,
 988                                         16);
 989                         break;
 990                 }
 991         }
 992 }
 993
 994 static void get_container_serial_callback(void *context, struct fib * fibptr)
 995 {
 996         struct aac_get_serial_resp * get_serial_reply;
 997         struct scsi_cmnd * scsicmd;
 998
 999         BUG_ON(fibptr == NULL);
1000
1001         scsicmd = (struct scsi_cmnd *) context;
1002         if (!aac_valid_context(scsicmd, fibptr))
1003                 return;
1004
1005         get_serial_reply = (struct aac_get_serial_resp *) fib_data(fibptr);
1006         /* Failure is irrelevant, using default value instead */
1007         if (le32_to_cpu(get_serial_reply->status) == CT_OK) {
1008                 /*Check to see if it's for VPD 0x83 or 0x80 */
1009                 if (scsicmd->cmnd[2] == 0x83) {
1010                         /* vpd page 0x83 - Device Identification Page */
1011                         struct aac_dev *dev;
1012                         int i;
1013                         struct tvpd_page83 vpdpage83data;
1014
1015                         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1016
1017                         memset(((u8 *)&vpdpage83data), 0,
1018                                sizeof(vpdpage83data));
1019
1020                         /* DIRECT_ACCESS_DEVIC */
1021                         vpdpage83data.DeviceType = 0;
1022                         /* DEVICE_CONNECTED */
1023                         vpdpage83data.DeviceTypeQualifier = 0;
1024                         /* VPD_DEVICE_IDENTIFIERS */
1025                         vpdpage83data.PageCode = 0x83;
1026                         vpdpage83data.reserved = 0;
1027                         vpdpage83data.PageLength =
1028                                 sizeof(vpdpage83data.type1) +
1029                                 sizeof(vpdpage83data.type2);
1030
1031                         /* VPD 83 Type 3 is not supported for ARC */
1032                         if (dev->sa_firmware)
1033                                 vpdpage83data.PageLength +=
1034                                 sizeof(vpdpage83data.type3);
1035
1036                         /* T10 Vendor Identifier Field Format */
1037                         /* VpdcodesetAscii */
1038                         vpdpage83data.type1.codeset = 2;
1039                         /* VpdIdentifierTypeVendorId */
1040                         vpdpage83data.type1.identifiertype = 1;
1041                         vpdpage83data.type1.identifierlength =
1042                                 sizeof(vpdpage83data.type1) - 4;
1043
1044                         /* "ADAPTEC " for adaptec */
1045                         memcpy(vpdpage83data.type1.venid,
1046                                 "ADAPTEC ",
1047                                 sizeof(vpdpage83data.type1.venid));
1048                         memcpy(vpdpage83data.type1.productid,
1049                                 "ARRAY           ",
1050                                 sizeof(
1051                                 vpdpage83data.type1.productid));
1052
1053                         /* Convert to ascii based serial number.
1054                          * The LSB is the end.
1055                          */
1056                         for (i = 0; i < 8; i++) {
1057                                 u8 temp =
1058                                         (u8)((get_serial_reply->uid >> ((7 - i) * 4)) & 0xF);
1059                                 if (temp  > 0x9) {
1060                                         vpdpage83data.type1.serialnumber[i] =
1061                                                         'A' + (temp - 0xA);
1062                                 } else {
1063                                         vpdpage83data.type1.serialnumber[i] =
1064                                                         '0' + temp;
1065                                 }
1066                         }
1067
1068                         /* VpdCodeSetBinary */
1069                         vpdpage83data.type2.codeset = 1;
1070                         /* VpdidentifiertypeEUI64 */
1071                         vpdpage83data.type2.identifiertype = 2;
1072                         vpdpage83data.type2.identifierlength =
1073                                 sizeof(vpdpage83data.type2) - 4;
1074
1075                         vpdpage83data.type2.eu64id.venid[0] = 0xD0;
1076                         vpdpage83data.type2.eu64id.venid[1] = 0;
1077                         vpdpage83data.type2.eu64id.venid[2] = 0;
1078
1079                         vpdpage83data.type2.eu64id.Serial =
1080                                                         get_serial_reply->uid;
1081                         vpdpage83data.type2.eu64id.reserved = 0;
1082
1083                         /*
1084                          * VpdIdentifierTypeFCPHName
1085                          * VPD 0x83 Type 3 not supported for ARC
1086                          */
1087                         if (dev->sa_firmware) {
1088                                 build_vpd83_type3(&vpdpage83data,
1089                                                 dev, scsicmd);
1090                         }
1091
1092                         /* Move the inquiry data to the response buffer. */
1093                         scsi_sg_copy_from_buffer(scsicmd, &vpdpage83data,
1094                                                  sizeof(vpdpage83data));
1095                 } else {
1096                         /* It must be for VPD 0x80 */
1097                         char sp[13];
1098                         /* EVPD bit set */
1099                         sp[0] = INQD_PDT_DA;
1100                         sp[1] = scsicmd->cmnd[2];
1101                         sp[2] = 0;
1102                         sp[3] = scnprintf(sp+4, sizeof(sp)-4, "%08X",
1103                                 le32_to_cpu(get_serial_reply->uid));
1104                         scsi_sg_copy_from_buffer(scsicmd, sp,
1105                                                  sizeof(sp));
1106                 }
1107         }
1108
1109         scsicmd->result = DID_OK << 16 | SAM_STAT_GOOD;
1110
1111         aac_fib_complete(fibptr);
1112         aac_scsi_done(scsicmd);
1113 }
1114
1115 /*
1116  *      aac_get_container_serial - get container serial, none blocking.
1117  */
1118 static int aac_get_container_serial(struct scsi_cmnd * scsicmd)
1119 {
1120         int status;
1121         struct aac_get_serial *dinfo;
1122         struct fib * cmd_fibcontext;
1123         struct aac_dev * dev;
1124
1125         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1126
1127         cmd_fibcontext = aac_fib_alloc_tag(dev, scsicmd);
1128
1129         aac_fib_init(cmd_fibcontext);
1130         dinfo = (struct aac_get_serial *) fib_data(cmd_fibcontext);
1131
1132         dinfo->command = cpu_to_le32(VM_ContainerConfig);
1133         dinfo->type = cpu_to_le32(CT_CID_TO_32BITS_UID);
1134         dinfo->cid = cpu_to_le32(scmd_id(scsicmd));
1135         aac_priv(scsicmd)->owner = AAC_OWNER_FIRMWARE;
1136
1137         status = aac_fib_send(ContainerCommand,
1138                   cmd_fibcontext,
1139                   sizeof(struct aac_get_serial_resp),
1140                   FsaNormal,
1141                   0, 1,
1142                   (fib_callback) get_container_serial_callback,
1143                   (void *) scsicmd);
1144
1145         /*
1146          *      Check that the command queued to the controller
1147          */
1148         if (status == -EINPROGRESS)
1149                 return 0;
1150
1151         printk(KERN_WARNING "aac_get_container_serial: aac_fib_send failed with status: %d.\n", status);
1152         aac_fib_complete(cmd_fibcontext);
1153         return -1;
1154 }
1155
1156 /* Function: setinqserial
1157  *
1158  * Arguments: [1] pointer to void [1] int
1159  *
1160  * Purpose: Sets SCSI Unit Serial number.
1161  *          This is a fake. We should read a proper
1162  *          serial number from the container. <SuSE>But
1163  *          without docs it's quite hard to do it :-)
1164  *          So this will have to do in the meantime.</SuSE>
1165  */
1166
1167 static int setinqserial(struct aac_dev *dev, void *data, int cid)
1168 {
1169         /*
1170          *      This breaks array migration.
1171          */
1172         return scnprintf((char *)(data), sizeof(struct scsi_inq) - 4, "%08X%02X",
1173                          le32_to_cpu(dev->adapter_info.serial[0]), cid);
1174 }
1175
1176 static inline void set_sense(struct sense_data *sense_data, u8 sense_key,
1177         u8 sense_code, u8 a_sense_code, u8 bit_pointer, u16 field_pointer)
1178 {
1179         u8 *sense_buf = (u8 *)sense_data;
1180         /* Sense data valid, err code 70h */
1181         sense_buf[0] = 0x70; /* No info field */
1182         sense_buf[1] = 0;       /* Segment number, always zero */
1183
1184         sense_buf[2] = sense_key;       /* Sense key */
1185
1186         sense_buf[12] = sense_code;     /* Additional sense code */
1187         sense_buf[13] = a_sense_code;   /* Additional sense code qualifier */
1188
1189         if (sense_key == ILLEGAL_REQUEST) {
1190                 sense_buf[7] = 10;      /* Additional sense length */
1191
1192                 sense_buf[15] = bit_pointer;
1193                 /* Illegal parameter is in the parameter block */
1194                 if (sense_code == SENCODE_INVALID_CDB_FIELD)
1195                         sense_buf[15] |= 0xc0;/* Std sense key specific field */
1196                 /* Illegal parameter is in the CDB block */
1197                 sense_buf[16] = field_pointer >> 8;     /* MSB */
1198                 sense_buf[17] = field_pointer;          /* LSB */
1199         } else
1200                 sense_buf[7] = 6;       /* Additional sense length */
1201 }
1202
1203 static int aac_bounds_32(struct aac_dev * dev, struct scsi_cmnd * cmd, u64 lba)
1204 {
1205         if (lba & 0xffffffff00000000LL) {
1206                 int cid = scmd_id(cmd);
1207                 dprintk((KERN_DEBUG "aacraid: Illegal lba\n"));
1208                 cmd->result = DID_OK << 16 | SAM_STAT_CHECK_CONDITION;
1209                 set_sense(&dev->fsa_dev[cid].sense_data,
1210                   HARDWARE_ERROR, SENCODE_INTERNAL_TARGET_FAILURE,
1211                   ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0);
1212                 memcpy(cmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1213                        min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
1214                              SCSI_SENSE_BUFFERSIZE));
1215                 aac_scsi_done(cmd);
1216                 return 1;
1217         }
1218         return 0;
1219 }
1220
1221 static int aac_bounds_64(struct aac_dev * dev, struct scsi_cmnd * cmd, u64 lba)
1222 {
1223         return 0;
1224 }
1225
1226 static void io_callback(void *context, struct fib * fibptr);
1227
1228 static int aac_read_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count)
1229 {
1230         struct aac_dev *dev = fib->dev;
1231         u16 fibsize, command;
1232         long ret;
1233
1234         aac_fib_init(fib);
1235         if ((dev->comm_interface == AAC_COMM_MESSAGE_TYPE2 ||
1236                 dev->comm_interface == AAC_COMM_MESSAGE_TYPE3) &&
1237                 !dev->sync_mode) {
1238                 struct aac_raw_io2 *readcmd2;
1239                 readcmd2 = (struct aac_raw_io2 *) fib_data(fib);
1240                 memset(readcmd2, 0, sizeof(struct aac_raw_io2));
1241                 readcmd2->blockLow = cpu_to_le32((u32)(lba&0xffffffff));
1242                 readcmd2->blockHigh = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
1243                 readcmd2->byteCount = cpu_to_le32(count *
1244                         dev->fsa_dev[scmd_id(cmd)].block_size);
1245                 readcmd2->cid = cpu_to_le16(scmd_id(cmd));
1246                 readcmd2->flags = cpu_to_le16(RIO2_IO_TYPE_READ);
1247                 ret = aac_build_sgraw2(cmd, readcmd2,
1248                                 dev->scsi_host_ptr->sg_tablesize);
1249                 if (ret < 0)
1250                         return ret;
1251                 command = ContainerRawIo2;
1252                 fibsize = struct_size(readcmd2, sge,
1253                                      le32_to_cpu(readcmd2->sgeCnt));
1254         } else {
1255                 struct aac_raw_io *readcmd;
1256                 readcmd = (struct aac_raw_io *) fib_data(fib);
1257                 readcmd->block[0] = cpu_to_le32((u32)(lba&0xffffffff));
1258                 readcmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
1259                 readcmd->count = cpu_to_le32(count *
1260                         dev->fsa_dev[scmd_id(cmd)].block_size);
1261                 readcmd->cid = cpu_to_le16(scmd_id(cmd));
1262                 readcmd->flags = cpu_to_le16(RIO_TYPE_READ);
1263                 readcmd->bpTotal = 0;
1264                 readcmd->bpComplete = 0;
1265                 ret = aac_build_sgraw(cmd, &readcmd->sg);
1266                 if (ret < 0)
1267                         return ret;
1268                 command = ContainerRawIo;
1269                 fibsize = sizeof(struct aac_raw_io) +
1270                         (le32_to_cpu(readcmd->sg.count) * sizeof(struct sgentryraw));
1271         }
1272
1273         BUG_ON(fibsize > (fib->dev->max_fib_size - sizeof(struct aac_fibhdr)));
1274         /*
1275          *      Now send the Fib to the adapter
1276          */
1277         return aac_fib_send(command,
1278                           fib,
1279                           fibsize,
1280                           FsaNormal,
1281                           0, 1,
1282                           (fib_callback) io_callback,
1283                           (void *) cmd);
1284 }
1285
1286 static int aac_read_block64(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count)
1287 {
1288         u16 fibsize;
1289         struct aac_read64 *readcmd;
1290         long ret;
1291
1292         aac_fib_init(fib);
1293         readcmd = (struct aac_read64 *) fib_data(fib);
1294         readcmd->command = cpu_to_le32(VM_CtHostRead64);
1295         readcmd->cid = cpu_to_le16(scmd_id(cmd));
1296         readcmd->sector_count = cpu_to_le16(count);
1297         readcmd->block = cpu_to_le32((u32)(lba&0xffffffff));
1298         readcmd->pad   = 0;
1299         readcmd->flags = 0;
1300
1301         ret = aac_build_sg64(cmd, &readcmd->sg);
1302         if (ret < 0)
1303                 return ret;
1304         fibsize = sizeof(struct aac_read64) +
1305                 (le32_to_cpu(readcmd->sg.count) *
1306                  sizeof (struct sgentry64));
1307         BUG_ON (fibsize > (fib->dev->max_fib_size -
1308                                 sizeof(struct aac_fibhdr)));
1309         /*
1310          *      Now send the Fib to the adapter
1311          */
1312         return aac_fib_send(ContainerCommand64,
1313                           fib,
1314                           fibsize,
1315                           FsaNormal,
1316                           0, 1,
1317                           (fib_callback) io_callback,
1318                           (void *) cmd);
1319 }
1320
1321 static int aac_read_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count)
1322 {
1323         u16 fibsize;
1324         struct aac_read *readcmd;
1325         struct aac_dev *dev = fib->dev;
1326         long ret;
1327
1328         aac_fib_init(fib);
1329         readcmd = (struct aac_read *) fib_data(fib);
1330         readcmd->command = cpu_to_le32(VM_CtBlockRead);
1331         readcmd->cid = cpu_to_le32(scmd_id(cmd));
1332         readcmd->block = cpu_to_le32((u32)(lba&0xffffffff));
1333         readcmd->count = cpu_to_le32(count *
1334                 dev->fsa_dev[scmd_id(cmd)].block_size);
1335
1336         ret = aac_build_sg(cmd, &readcmd->sg);
1337         if (ret < 0)
1338                 return ret;
1339         fibsize = sizeof(struct aac_read) +
1340                         (le32_to_cpu(readcmd->sg.count) *
1341                          sizeof (struct sgentry));
1342         BUG_ON (fibsize > (fib->dev->max_fib_size -
1343                                 sizeof(struct aac_fibhdr)));
1344         /*
1345          *      Now send the Fib to the adapter
1346          */
1347         return aac_fib_send(ContainerCommand,
1348                           fib,
1349                           fibsize,
1350                           FsaNormal,
1351                           0, 1,
1352                           (fib_callback) io_callback,
1353                           (void *) cmd);
1354 }
1355
1356 static int aac_write_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count, int fua)
1357 {
1358         struct aac_dev *dev = fib->dev;
1359         u16 fibsize, command;
1360         long ret;
1361
1362         aac_fib_init(fib);
1363         if ((dev->comm_interface == AAC_COMM_MESSAGE_TYPE2 ||
1364                 dev->comm_interface == AAC_COMM_MESSAGE_TYPE3) &&
1365                 !dev->sync_mode) {
1366                 struct aac_raw_io2 *writecmd2;
1367                 writecmd2 = (struct aac_raw_io2 *) fib_data(fib);
1368                 memset(writecmd2, 0, sizeof(struct aac_raw_io2));
1369                 writecmd2->blockLow = cpu_to_le32((u32)(lba&0xffffffff));
1370                 writecmd2->blockHigh = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
1371                 writecmd2->byteCount = cpu_to_le32(count *
1372                         dev->fsa_dev[scmd_id(cmd)].block_size);
1373                 writecmd2->cid = cpu_to_le16(scmd_id(cmd));
1374                 writecmd2->flags = (fua && ((aac_cache & 5) != 1) &&
1375                                                    (((aac_cache & 5) != 5) || !fib->dev->cache_protected)) ?
1376                         cpu_to_le16(RIO2_IO_TYPE_WRITE|RIO2_IO_SUREWRITE) :
1377                         cpu_to_le16(RIO2_IO_TYPE_WRITE);
1378                 ret = aac_build_sgraw2(cmd, writecmd2,
1379                                 dev->scsi_host_ptr->sg_tablesize);
1380                 if (ret < 0)
1381                         return ret;
1382                 command = ContainerRawIo2;
1383                 fibsize = struct_size(writecmd2, sge,
1384                                       le32_to_cpu(writecmd2->sgeCnt));
1385         } else {
1386                 struct aac_raw_io *writecmd;
1387                 writecmd = (struct aac_raw_io *) fib_data(fib);
1388                 writecmd->block[0] = cpu_to_le32((u32)(lba&0xffffffff));
1389                 writecmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
1390                 writecmd->count = cpu_to_le32(count *
1391                         dev->fsa_dev[scmd_id(cmd)].block_size);
1392                 writecmd->cid = cpu_to_le16(scmd_id(cmd));
1393                 writecmd->flags = (fua && ((aac_cache & 5) != 1) &&
1394                                                    (((aac_cache & 5) != 5) || !fib->dev->cache_protected)) ?
1395                         cpu_to_le16(RIO_TYPE_WRITE|RIO_SUREWRITE) :
1396                         cpu_to_le16(RIO_TYPE_WRITE);
1397                 writecmd->bpTotal = 0;
1398                 writecmd->bpComplete = 0;
1399                 ret = aac_build_sgraw(cmd, &writecmd->sg);
1400                 if (ret < 0)
1401                         return ret;
1402                 command = ContainerRawIo;
1403                 fibsize = sizeof(struct aac_raw_io) +
1404                         (le32_to_cpu(writecmd->sg.count) * sizeof(struct sgentryraw));
1405         }
1406
1407         BUG_ON(fibsize > (fib->dev->max_fib_size - sizeof(struct aac_fibhdr)));
1408         /*
1409          *      Now send the Fib to the adapter
1410          */
1411         return aac_fib_send(command,
1412                           fib,
1413                           fibsize,
1414                           FsaNormal,
1415                           0, 1,
1416                           (fib_callback) io_callback,
1417                           (void *) cmd);
1418 }
1419
1420 static int aac_write_block64(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count, int fua)
1421 {
1422         u16 fibsize;
1423         struct aac_write64 *writecmd;
1424         long ret;
1425
1426         aac_fib_init(fib);
1427         writecmd = (struct aac_write64 *) fib_data(fib);
1428         writecmd->command = cpu_to_le32(VM_CtHostWrite64);
1429         writecmd->cid = cpu_to_le16(scmd_id(cmd));
1430         writecmd->sector_count = cpu_to_le16(count);
1431         writecmd->block = cpu_to_le32((u32)(lba&0xffffffff));
1432         writecmd->pad   = 0;
1433         writecmd->flags = 0;
1434
1435         ret = aac_build_sg64(cmd, &writecmd->sg);
1436         if (ret < 0)
1437                 return ret;
1438         fibsize = sizeof(struct aac_write64) +
1439                 (le32_to_cpu(writecmd->sg.count) *
1440                  sizeof (struct sgentry64));
1441         BUG_ON (fibsize > (fib->dev->max_fib_size -
1442                                 sizeof(struct aac_fibhdr)));
1443         /*
1444          *      Now send the Fib to the adapter
1445          */
1446         return aac_fib_send(ContainerCommand64,
1447                           fib,
1448                           fibsize,
1449                           FsaNormal,
1450                           0, 1,
1451                           (fib_callback) io_callback,
1452                           (void *) cmd);
1453 }
1454
1455 static int aac_write_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count, int fua)
1456 {
1457         u16 fibsize;
1458         struct aac_write *writecmd;
1459         struct aac_dev *dev = fib->dev;
1460         long ret;
1461
1462         aac_fib_init(fib);
1463         writecmd = (struct aac_write *) fib_data(fib);
1464         writecmd->command = cpu_to_le32(VM_CtBlockWrite);
1465         writecmd->cid = cpu_to_le32(scmd_id(cmd));
1466         writecmd->block = cpu_to_le32((u32)(lba&0xffffffff));
1467         writecmd->count = cpu_to_le32(count *
1468                 dev->fsa_dev[scmd_id(cmd)].block_size);
1469         writecmd->sg.count = cpu_to_le32(1);
1470         /* ->stable is not used - it did mean which type of write */
1471
1472         ret = aac_build_sg(cmd, &writecmd->sg);
1473         if (ret < 0)
1474                 return ret;
1475         fibsize = sizeof(struct aac_write) +
1476                 (le32_to_cpu(writecmd->sg.count) *
1477                  sizeof (struct sgentry));
1478         BUG_ON (fibsize > (fib->dev->max_fib_size -
1479                                 sizeof(struct aac_fibhdr)));
1480         /*
1481          *      Now send the Fib to the adapter
1482          */
1483         return aac_fib_send(ContainerCommand,
1484                           fib,
1485                           fibsize,
1486                           FsaNormal,
1487                           0, 1,
1488                           (fib_callback) io_callback,
1489                           (void *) cmd);
1490 }
1491
1492 static struct aac_srb * aac_scsi_common(struct fib * fib, struct scsi_cmnd * cmd)
1493 {
1494         struct aac_srb * srbcmd;
1495         u32 flag;
1496         u32 timeout;
1497         struct aac_dev *dev = fib->dev;
1498
1499         aac_fib_init(fib);
1500         switch(cmd->sc_data_direction){
1501         case DMA_TO_DEVICE:
1502                 flag = SRB_DataOut;
1503                 break;
1504         case DMA_BIDIRECTIONAL:
1505                 flag = SRB_DataIn | SRB_DataOut;
1506                 break;
1507         case DMA_FROM_DEVICE:
1508                 flag = SRB_DataIn;
1509                 break;
1510         case DMA_NONE:
1511         default:        /* shuts up some versions of gcc */
1512                 flag = SRB_NoDataXfer;
1513                 break;
1514         }
1515
1516         srbcmd = (struct aac_srb*) fib_data(fib);
1517         srbcmd->function = cpu_to_le32(SRBF_ExecuteScsi);
1518         srbcmd->channel  = cpu_to_le32(aac_logical_to_phys(scmd_channel(cmd)));
1519         srbcmd->id       = cpu_to_le32(scmd_id(cmd));
1520         srbcmd->lun      = cpu_to_le32(cmd->device->lun);
1521         srbcmd->flags    = cpu_to_le32(flag);
1522         timeout = scsi_cmd_to_rq(cmd)->timeout / HZ;
1523         if (timeout == 0)
1524                 timeout = (dev->sa_firmware ? AAC_SA_TIMEOUT : AAC_ARC_TIMEOUT);
1525         srbcmd->timeout  = cpu_to_le32(timeout);  // timeout in seconds
1526         srbcmd->retry_limit = 0; /* Obsolete parameter */
1527         srbcmd->cdb_size = cpu_to_le32(cmd->cmd_len);
1528         return srbcmd;
1529 }
1530
1531 static struct aac_hba_cmd_req *aac_construct_hbacmd(struct fib *fib,
1532                                                         struct scsi_cmnd *cmd)
1533 {
1534         struct aac_hba_cmd_req *hbacmd;
1535         struct aac_dev *dev;
1536         int bus, target;
1537         u64 address;
1538
1539         dev = (struct aac_dev *)cmd->device->host->hostdata;
1540
1541         hbacmd = (struct aac_hba_cmd_req *)fib->hw_fib_va;
1542         memset(hbacmd, 0, 96);  /* sizeof(*hbacmd) is not necessary */
1543         /* iu_type is a parameter of aac_hba_send */
1544         switch (cmd->sc_data_direction) {
1545         case DMA_TO_DEVICE:
1546                 hbacmd->byte1 = 2;
1547                 break;
1548         case DMA_FROM_DEVICE:
1549         case DMA_BIDIRECTIONAL:
1550                 hbacmd->byte1 = 1;
1551                 break;
1552         case DMA_NONE:
1553         default:
1554                 break;
1555         }
1556         hbacmd->lun[1] = cpu_to_le32(cmd->device->lun);
1557
1558         bus = aac_logical_to_phys(scmd_channel(cmd));
1559         target = scmd_id(cmd);
1560         hbacmd->it_nexus = dev->hba_map[bus][target].rmw_nexus;
1561
1562         /* we fill in reply_qid later in aac_src_deliver_message */
1563         /* we fill in iu_type, request_id later in aac_hba_send */
1564         /* we fill in emb_data_desc_count later in aac_build_sghba */
1565
1566         memcpy(hbacmd->cdb, cmd->cmnd, cmd->cmd_len);
1567         hbacmd->data_length = cpu_to_le32(scsi_bufflen(cmd));
1568
1569         address = (u64)fib->hw_error_pa;
1570         hbacmd->error_ptr_hi = cpu_to_le32((u32)(address >> 32));
1571         hbacmd->error_ptr_lo = cpu_to_le32((u32)(address & 0xffffffff));
1572         hbacmd->error_length = cpu_to_le32(FW_ERROR_BUFFER_SIZE);
1573
1574         return hbacmd;
1575 }
1576
1577 static void aac_srb_callback(void *context, struct fib * fibptr);
1578
1579 static int aac_scsi_64(struct fib * fib, struct scsi_cmnd * cmd)
1580 {
1581         u16 fibsize;
1582         struct aac_srb * srbcmd = aac_scsi_common(fib, cmd);
1583         long ret;
1584
1585         ret = aac_build_sg64(cmd, (struct sgmap64 *) &srbcmd->sg);
1586         if (ret < 0)
1587                 return ret;
1588         srbcmd->count = cpu_to_le32(scsi_bufflen(cmd));
1589
1590         memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
1591         memcpy(srbcmd->cdb, cmd->cmnd, cmd->cmd_len);
1592         /*
1593          *      Build Scatter/Gather list
1594          */
1595         fibsize = sizeof(struct aac_srb) +
1596                 ((le32_to_cpu(srbcmd->sg.count) & 0xff) *
1597                  sizeof(struct sgentry64));
1598         BUG_ON (fibsize > (fib->dev->max_fib_size -
1599                                 sizeof(struct aac_fibhdr)));
1600
1601         /*
1602          *      Now send the Fib to the adapter
1603          */
1604         return aac_fib_send(ScsiPortCommand64, fib,
1605                                 fibsize, FsaNormal, 0, 1,
1606                                   (fib_callback) aac_srb_callback,
1607                                   (void *) cmd);
1608 }
1609
1610 static int aac_scsi_32(struct fib * fib, struct scsi_cmnd * cmd)
1611 {
1612         u16 fibsize;
1613         struct aac_srb * srbcmd = aac_scsi_common(fib, cmd);
1614         long ret;
1615
1616         ret = aac_build_sg(cmd, (struct sgmap *)&srbcmd->sg);
1617         if (ret < 0)
1618                 return ret;
1619         srbcmd->count = cpu_to_le32(scsi_bufflen(cmd));
1620
1621         memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
1622         memcpy(srbcmd->cdb, cmd->cmnd, cmd->cmd_len);
1623         /*
1624          *      Build Scatter/Gather list
1625          */
1626         fibsize = sizeof (struct aac_srb) +
1627                 ((le32_to_cpu(srbcmd->sg.count) & 0xff) *
1628                  sizeof (struct sgentry));
1629         BUG_ON (fibsize > (fib->dev->max_fib_size -
1630                                 sizeof(struct aac_fibhdr)));
1631
1632         /*
1633          *      Now send the Fib to the adapter
1634          */
1635         return aac_fib_send(ScsiPortCommand, fib, fibsize, FsaNormal, 0, 1,
1636                                   (fib_callback) aac_srb_callback, (void *) cmd);
1637 }
1638
1639 static int aac_scsi_32_64(struct fib * fib, struct scsi_cmnd * cmd)
1640 {
1641         if ((sizeof(dma_addr_t) > 4) && fib->dev->needs_dac &&
1642             (fib->dev->adapter_info.options & AAC_OPT_SGMAP_HOST64))
1643                 return FAILED;
1644         return aac_scsi_32(fib, cmd);
1645 }
1646
1647 static int aac_adapter_hba(struct fib *fib, struct scsi_cmnd *cmd)
1648 {
1649         struct aac_hba_cmd_req *hbacmd = aac_construct_hbacmd(fib, cmd);
1650         struct aac_dev *dev;
1651         long ret;
1652
1653         dev = (struct aac_dev *)cmd->device->host->hostdata;
1654
1655         ret = aac_build_sghba(cmd, hbacmd,
1656                 dev->scsi_host_ptr->sg_tablesize, (u64)fib->hw_sgl_pa);
1657         if (ret < 0)
1658                 return ret;
1659
1660         /*
1661          *      Now send the HBA command to the adapter
1662          */
1663         fib->hbacmd_size = 64 + le32_to_cpu(hbacmd->emb_data_desc_count) *
1664                 sizeof(struct aac_hba_sgl);
1665
1666         return aac_hba_send(HBA_IU_TYPE_SCSI_CMD_REQ, fib,
1667                                   (fib_callback) aac_hba_callback,
1668                                   (void *) cmd);
1669 }
1670
1671 static int aac_send_safw_bmic_cmd(struct aac_dev *dev,
1672         struct aac_srb_unit *srbu, void *xfer_buf, int xfer_len)
1673 {
1674         struct fib      *fibptr;
1675         dma_addr_t      addr;
1676         int             rcode;
1677         int             fibsize;
1678         struct aac_srb  *srb;
1679         struct aac_srb_reply *srb_reply;
1680         struct sgmap64  *sg64;
1681         u32 vbus;
1682         u32 vid;
1683
1684         if (!dev->sa_firmware)
1685                 return 0;
1686
1687         /* allocate FIB */
1688         fibptr = aac_fib_alloc(dev);
1689         if (!fibptr)
1690                 return -ENOMEM;
1691
1692         aac_fib_init(fibptr);
1693         fibptr->hw_fib_va->header.XferState &=
1694                 ~cpu_to_le32(FastResponseCapable);
1695
1696         fibsize = sizeof(struct aac_srb) + sizeof(struct sgentry64);
1697
1698         /* allocate DMA buffer for response */
1699         addr = dma_map_single(&dev->pdev->dev, xfer_buf, xfer_len,
1700                                                         DMA_BIDIRECTIONAL);
1701         if (dma_mapping_error(&dev->pdev->dev, addr)) {
1702                 rcode = -ENOMEM;
1703                 goto fib_error;
1704         }
1705
1706         srb = fib_data(fibptr);
1707         memcpy(srb, &srbu->srb, sizeof(struct aac_srb));
1708
1709         vbus = (u32)le16_to_cpu(
1710                         dev->supplement_adapter_info.virt_device_bus);
1711         vid  = (u32)le16_to_cpu(
1712                         dev->supplement_adapter_info.virt_device_target);
1713
1714         /* set the common request fields */
1715         srb->channel            = cpu_to_le32(vbus);
1716         srb->id                 = cpu_to_le32(vid);
1717         srb->lun                = 0;
1718         srb->function           = cpu_to_le32(SRBF_ExecuteScsi);
1719         srb->timeout            = 0;
1720         srb->retry_limit        = 0;
1721         srb->cdb_size           = cpu_to_le32(16);
1722         srb->count              = cpu_to_le32(xfer_len);
1723
1724         sg64 = (struct sgmap64 *)&srb->sg;
1725         sg64->count             = cpu_to_le32(1);
1726         sg64->sg[0].addr[1]     = cpu_to_le32(upper_32_bits(addr));
1727         sg64->sg[0].addr[0]     = cpu_to_le32(lower_32_bits(addr));
1728         sg64->sg[0].count       = cpu_to_le32(xfer_len);
1729
1730         /*
1731          * Copy the updated data for other dumping or other usage if needed
1732          */
1733         memcpy(&srbu->srb, srb, sizeof(struct aac_srb));
1734
1735         /* issue request to the controller */
1736         rcode = aac_fib_send(ScsiPortCommand64, fibptr, fibsize, FsaNormal,
1737                                         1, 1, NULL, NULL);
1738
1739         if (rcode == -ERESTARTSYS)
1740                 rcode = -ERESTART;
1741
1742         if (unlikely(rcode < 0))
1743                 goto bmic_error;
1744
1745         srb_reply = (struct aac_srb_reply *)fib_data(fibptr);
1746         memcpy(&srbu->srb_reply, srb_reply, sizeof(struct aac_srb_reply));
1747
1748 bmic_error:
1749         dma_unmap_single(&dev->pdev->dev, addr, xfer_len, DMA_BIDIRECTIONAL);
1750 fib_error:
1751         aac_fib_complete(fibptr);
1752         aac_fib_free(fibptr);
1753         return rcode;
1754 }
1755
1756 static void aac_set_safw_target_qd(struct aac_dev *dev, int bus, int target)
1757 {
1758
1759         struct aac_ciss_identify_pd *identify_resp;
1760
1761         if (dev->hba_map[bus][target].devtype != AAC_DEVTYPE_NATIVE_RAW)
1762                 return;
1763
1764         identify_resp = dev->hba_map[bus][target].safw_identify_resp;
1765         if (identify_resp == NULL) {
1766                 dev->hba_map[bus][target].qd_limit = 32;
1767                 return;
1768         }
1769
1770         if (identify_resp->current_queue_depth_limit <= 0 ||
1771                 identify_resp->current_queue_depth_limit > 255)
1772                 dev->hba_map[bus][target].qd_limit = 32;
1773         else
1774                 dev->hba_map[bus][target].qd_limit =
1775                         identify_resp->current_queue_depth_limit;
1776 }
1777
1778 static int aac_issue_safw_bmic_identify(struct aac_dev *dev,
1779         struct aac_ciss_identify_pd **identify_resp, u32 bus, u32 target)
1780 {
1781         int rcode = -ENOMEM;
1782         int datasize;
1783         struct aac_srb_unit srbu;
1784         struct aac_srb *srbcmd;
1785         struct aac_ciss_identify_pd *identify_reply;
1786
1787         datasize = sizeof(struct aac_ciss_identify_pd);
1788         identify_reply = kmalloc(datasize, GFP_KERNEL);
1789         if (!identify_reply)
1790                 goto out;
1791
1792         memset(&srbu, 0, sizeof(struct aac_srb_unit));
1793
1794         srbcmd = &srbu.srb;
1795         srbcmd->flags   = cpu_to_le32(SRB_DataIn);
1796         srbcmd->cdb[0]  = 0x26;
1797         srbcmd->cdb[2]  = (u8)((AAC_MAX_LUN + target) & 0x00FF);
1798         srbcmd->cdb[6]  = CISS_IDENTIFY_PHYSICAL_DEVICE;
1799
1800         rcode = aac_send_safw_bmic_cmd(dev, &srbu, identify_reply, datasize);
1801         if (unlikely(rcode < 0))
1802                 goto mem_free_all;
1803
1804         *identify_resp = identify_reply;
1805
1806 out:
1807         return rcode;
1808 mem_free_all:
1809         kfree(identify_reply);
1810         goto out;
1811 }
1812
1813 static inline void aac_free_safw_ciss_luns(struct aac_dev *dev)
1814 {
1815         kfree(dev->safw_phys_luns);
1816         dev->safw_phys_luns = NULL;
1817 }
1818
1819 /**
1820  *      aac_get_safw_ciss_luns() - Process topology change
1821  *      @dev:           aac_dev structure
1822  *
1823  *      Execute a CISS REPORT PHYS LUNS and process the results into
1824  *      the current hba_map.
1825  */
1826 static int aac_get_safw_ciss_luns(struct aac_dev *dev)
1827 {
1828         int rcode = -ENOMEM;
1829         int datasize;
1830         struct aac_srb *srbcmd;
1831         struct aac_srb_unit srbu;
1832         struct aac_ciss_phys_luns_resp *phys_luns;
1833
1834         datasize = sizeof(struct aac_ciss_phys_luns_resp) +
1835                 AAC_MAX_TARGETS * sizeof(struct _ciss_lun);
1836         phys_luns = kmalloc(datasize, GFP_KERNEL);
1837         if (phys_luns == NULL)
1838                 goto out;
1839
1840         memset(&srbu, 0, sizeof(struct aac_srb_unit));
1841
1842         srbcmd = &srbu.srb;
1843         srbcmd->flags   = cpu_to_le32(SRB_DataIn);
1844         srbcmd->cdb[0]  = CISS_REPORT_PHYSICAL_LUNS;
1845         srbcmd->cdb[1]  = 2; /* extended reporting */
1846         srbcmd->cdb[8]  = (u8)(datasize >> 8);
1847         srbcmd->cdb[9]  = (u8)(datasize);
1848
1849         rcode = aac_send_safw_bmic_cmd(dev, &srbu, phys_luns, datasize);
1850         if (unlikely(rcode < 0))
1851                 goto mem_free_all;
1852
1853         if (phys_luns->resp_flag != 2) {
1854                 rcode = -ENOMSG;
1855                 goto mem_free_all;
1856         }
1857
1858         dev->safw_phys_luns = phys_luns;
1859
1860 out:
1861         return rcode;
1862 mem_free_all:
1863         kfree(phys_luns);
1864         goto out;
1865 }
1866
1867 static inline u32 aac_get_safw_phys_lun_count(struct aac_dev *dev)
1868 {
1869         return get_unaligned_be32(&dev->safw_phys_luns->list_length[0])/24;
1870 }
1871
1872 static inline u32 aac_get_safw_phys_bus(struct aac_dev *dev, int lun)
1873 {
1874         return dev->safw_phys_luns->lun[lun].level2[1] & 0x3f;
1875 }
1876
1877 static inline u32 aac_get_safw_phys_target(struct aac_dev *dev, int lun)
1878 {
1879         return dev->safw_phys_luns->lun[lun].level2[0];
1880 }
1881
1882 static inline u32 aac_get_safw_phys_expose_flag(struct aac_dev *dev, int lun)
1883 {
1884         return dev->safw_phys_luns->lun[lun].bus >> 6;
1885 }
1886
1887 static inline u32 aac_get_safw_phys_attribs(struct aac_dev *dev, int lun)
1888 {
1889         return dev->safw_phys_luns->lun[lun].node_ident[9];
1890 }
1891
1892 static inline u32 aac_get_safw_phys_nexus(struct aac_dev *dev, int lun)
1893 {
1894         return *((u32 *)&dev->safw_phys_luns->lun[lun].node_ident[12]);
1895 }
1896
1897 static inline void aac_free_safw_identify_resp(struct aac_dev *dev,
1898                                                 int bus, int target)
1899 {
1900         kfree(dev->hba_map[bus][target].safw_identify_resp);
1901         dev->hba_map[bus][target].safw_identify_resp = NULL;
1902 }
1903
1904 static inline void aac_free_safw_all_identify_resp(struct aac_dev *dev,
1905         int lun_count)
1906 {
1907         int luns;
1908         int i;
1909         u32 bus;
1910         u32 target;
1911
1912         luns = aac_get_safw_phys_lun_count(dev);
1913
1914         if (luns < lun_count)
1915                 lun_count = luns;
1916         else if (lun_count < 0)
1917                 lun_count = luns;
1918
1919         for (i = 0; i < lun_count; i++) {
1920                 bus = aac_get_safw_phys_bus(dev, i);
1921                 target = aac_get_safw_phys_target(dev, i);
1922
1923                 aac_free_safw_identify_resp(dev, bus, target);
1924         }
1925 }
1926
1927 static int aac_get_safw_attr_all_targets(struct aac_dev *dev)
1928 {
1929         int i;
1930         int rcode = 0;
1931         u32 lun_count;
1932         u32 bus;
1933         u32 target;
1934         struct aac_ciss_identify_pd *identify_resp = NULL;
1935
1936         lun_count = aac_get_safw_phys_lun_count(dev);
1937
1938         for (i = 0; i < lun_count; ++i) {
1939
1940                 bus = aac_get_safw_phys_bus(dev, i);
1941                 target = aac_get_safw_phys_target(dev, i);
1942
1943                 rcode = aac_issue_safw_bmic_identify(dev,
1944                                                 &identify_resp, bus, target);
1945
1946                 if (unlikely(rcode < 0))
1947                         goto free_identify_resp;
1948
1949                 dev->hba_map[bus][target].safw_identify_resp = identify_resp;
1950         }
1951
1952 out:
1953         return rcode;
1954 free_identify_resp:
1955         aac_free_safw_all_identify_resp(dev, i);
1956         goto out;
1957 }
1958
1959 /**
1960  *      aac_set_safw_attr_all_targets-  update current hba map with data from FW
1961  *      @dev:   aac_dev structure
1962  *
1963  *      Update our hba map with the information gathered from the FW
1964  */
1965 static void aac_set_safw_attr_all_targets(struct aac_dev *dev)
1966 {
1967         /* ok and extended reporting */
1968         u32 lun_count, nexus;
1969         u32 i, bus, target;
1970         u8 expose_flag, attribs;
1971
1972         lun_count = aac_get_safw_phys_lun_count(dev);
1973
1974         dev->scan_counter++;
1975
1976         for (i = 0; i < lun_count; ++i) {
1977
1978                 bus = aac_get_safw_phys_bus(dev, i);
1979                 target = aac_get_safw_phys_target(dev, i);
1980                 expose_flag = aac_get_safw_phys_expose_flag(dev, i);
1981                 attribs = aac_get_safw_phys_attribs(dev, i);
1982                 nexus = aac_get_safw_phys_nexus(dev, i);
1983
1984                 if (bus >= AAC_MAX_BUSES || target >= AAC_MAX_TARGETS)
1985                         continue;
1986
1987                 if (expose_flag != 0) {
1988                         dev->hba_map[bus][target].devtype =
1989                                 AAC_DEVTYPE_RAID_MEMBER;
1990                         continue;
1991                 }
1992
1993                 if (nexus != 0 && (attribs & 8)) {
1994                         dev->hba_map[bus][target].devtype =
1995                                 AAC_DEVTYPE_NATIVE_RAW;
1996                         dev->hba_map[bus][target].rmw_nexus =
1997                                         nexus;
1998                 } else
1999                         dev->hba_map[bus][target].devtype =
2000                                 AAC_DEVTYPE_ARC_RAW;
2001
2002                 dev->hba_map[bus][target].scan_counter = dev->scan_counter;
2003
2004                 aac_set_safw_target_qd(dev, bus, target);
2005         }
2006 }
2007
2008 static int aac_setup_safw_targets(struct aac_dev *dev)
2009 {
2010         int rcode = 0;
2011
2012         rcode = aac_get_containers(dev);
2013         if (unlikely(rcode < 0))
2014                 goto out;
2015
2016         rcode = aac_get_safw_ciss_luns(dev);
2017         if (unlikely(rcode < 0))
2018                 goto out;
2019
2020         rcode = aac_get_safw_attr_all_targets(dev);
2021         if (unlikely(rcode < 0))
2022                 goto free_ciss_luns;
2023
2024         aac_set_safw_attr_all_targets(dev);
2025
2026         aac_free_safw_all_identify_resp(dev, -1);
2027 free_ciss_luns:
2028         aac_free_safw_ciss_luns(dev);
2029 out:
2030         return rcode;
2031 }
2032
2033 int aac_setup_safw_adapter(struct aac_dev *dev)
2034 {
2035         return aac_setup_safw_targets(dev);
2036 }
2037
2038 int aac_get_adapter_info(struct aac_dev* dev)
2039 {
2040         struct fib* fibptr;
2041         int rcode;
2042         u32 tmp, bus, target;
2043         struct aac_adapter_info *info;
2044         struct aac_bus_info *command;
2045         struct aac_bus_info_response *bus_info;
2046
2047         if (!(fibptr = aac_fib_alloc(dev)))
2048                 return -ENOMEM;
2049
2050         aac_fib_init(fibptr);
2051         info = (struct aac_adapter_info *) fib_data(fibptr);
2052         memset(info,0,sizeof(*info));
2053
2054         rcode = aac_fib_send(RequestAdapterInfo,
2055                          fibptr,
2056                          sizeof(*info),
2057                          FsaNormal,
2058                          -1, 1, /* First `interrupt' command uses special wait */
2059                          NULL,
2060                          NULL);
2061
2062         if (rcode < 0) {
2063                 /* FIB should be freed only after
2064                  * getting the response from the F/W */
2065                 if (rcode != -ERESTARTSYS) {
2066                         aac_fib_complete(fibptr);
2067                         aac_fib_free(fibptr);
2068                 }
2069                 return rcode;
2070         }
2071         memcpy(&dev->adapter_info, info, sizeof(*info));
2072
2073         dev->supplement_adapter_info.virt_device_bus = 0xffff;
2074         if (dev->adapter_info.options & AAC_OPT_SUPPLEMENT_ADAPTER_INFO) {
2075                 struct aac_supplement_adapter_info * sinfo;
2076
2077                 aac_fib_init(fibptr);
2078
2079                 sinfo = (struct aac_supplement_adapter_info *) fib_data(fibptr);
2080
2081                 memset(sinfo,0,sizeof(*sinfo));
2082
2083                 rcode = aac_fib_send(RequestSupplementAdapterInfo,
2084                                  fibptr,
2085                                  sizeof(*sinfo),
2086                                  FsaNormal,
2087                                  1, 1,
2088                                  NULL,
2089                                  NULL);
2090
2091                 if (rcode >= 0)
2092                         memcpy(&dev->supplement_adapter_info, sinfo, sizeof(*sinfo));
2093                 if (rcode == -ERESTARTSYS) {
2094                         fibptr = aac_fib_alloc(dev);
2095                         if (!fibptr)
2096                                 return -ENOMEM;
2097                 }
2098
2099         }
2100
2101         /* reset all previous mapped devices (i.e. for init. after IOP_RESET) */
2102         for (bus = 0; bus < AAC_MAX_BUSES; bus++) {
2103                 for (target = 0; target < AAC_MAX_TARGETS; target++) {
2104                         dev->hba_map[bus][target].devtype = 0;
2105                         dev->hba_map[bus][target].qd_limit = 0;
2106                 }
2107         }
2108
2109         /*
2110          * GetBusInfo
2111          */
2112
2113         aac_fib_init(fibptr);
2114
2115         bus_info = (struct aac_bus_info_response *) fib_data(fibptr);
2116
2117         memset(bus_info, 0, sizeof(*bus_info));
2118
2119         command = (struct aac_bus_info *)bus_info;
2120
2121         command->Command = cpu_to_le32(VM_Ioctl);
2122         command->ObjType = cpu_to_le32(FT_DRIVE);
2123         command->MethodId = cpu_to_le32(1);
2124         command->CtlCmd = cpu_to_le32(GetBusInfo);
2125
2126         rcode = aac_fib_send(ContainerCommand,
2127                          fibptr,
2128                          sizeof (*bus_info),
2129                          FsaNormal,
2130                          1, 1,
2131                          NULL, NULL);
2132
2133         /* reasoned default */
2134         dev->maximum_num_physicals = 16;
2135         if (rcode >= 0 && le32_to_cpu(bus_info->Status) == ST_OK) {
2136                 dev->maximum_num_physicals = le32_to_cpu(bus_info->TargetsPerBus);
2137                 dev->maximum_num_channels = le32_to_cpu(bus_info->BusCount);
2138         }
2139
2140         if (!dev->in_reset) {
2141                 char buffer[16];
2142                 tmp = le32_to_cpu(dev->adapter_info.kernelrev);
2143                 printk(KERN_INFO "%s%d: kernel %d.%d-%d[%d] %.*s\n",
2144                         dev->name,
2145                         dev->id,
2146                         tmp>>24,
2147                         (tmp>>16)&0xff,
2148                         tmp&0xff,
2149                         le32_to_cpu(dev->adapter_info.kernelbuild),
2150                         (int)sizeof(dev->supplement_adapter_info.build_date),
2151                         dev->supplement_adapter_info.build_date);
2152                 tmp = le32_to_cpu(dev->adapter_info.monitorrev);
2153                 printk(KERN_INFO "%s%d: monitor %d.%d-%d[%d]\n",
2154                         dev->name, dev->id,
2155                         tmp>>24,(tmp>>16)&0xff,tmp&0xff,
2156                         le32_to_cpu(dev->adapter_info.monitorbuild));
2157                 tmp = le32_to_cpu(dev->adapter_info.biosrev);
2158                 printk(KERN_INFO "%s%d: bios %d.%d-%d[%d]\n",
2159                         dev->name, dev->id,
2160                         tmp>>24,(tmp>>16)&0xff,tmp&0xff,
2161                         le32_to_cpu(dev->adapter_info.biosbuild));
2162                 buffer[0] = '\0';
2163                 if (aac_get_serial_number(
2164                   shost_to_class(dev->scsi_host_ptr), buffer))
2165                         printk(KERN_INFO "%s%d: serial %s",
2166                           dev->name, dev->id, buffer);
2167                 if (dev->supplement_adapter_info.vpd_info.tsid[0]) {
2168                         printk(KERN_INFO "%s%d: TSID %.*s\n",
2169                           dev->name, dev->id,
2170                           (int)sizeof(dev->supplement_adapter_info
2171                                                         .vpd_info.tsid),
2172                                 dev->supplement_adapter_info.vpd_info.tsid);
2173                 }
2174                 if (!aac_check_reset || ((aac_check_reset == 1) &&
2175                   (dev->supplement_adapter_info.supported_options2 &
2176                   AAC_OPTION_IGNORE_RESET))) {
2177                         printk(KERN_INFO "%s%d: Reset Adapter Ignored\n",
2178                           dev->name, dev->id);
2179                 }
2180         }
2181
2182         dev->cache_protected = 0;
2183         dev->jbod = ((dev->supplement_adapter_info.feature_bits &
2184                 AAC_FEATURE_JBOD) != 0);
2185         dev->nondasd_support = 0;
2186         dev->raid_scsi_mode = 0;
2187         if(dev->adapter_info.options & AAC_OPT_NONDASD)
2188                 dev->nondasd_support = 1;
2189
2190         /*
2191          * If the firmware supports ROMB RAID/SCSI mode and we are currently
2192          * in RAID/SCSI mode, set the flag. For now if in this mode we will
2193          * force nondasd support on. If we decide to allow the non-dasd flag
2194          * additional changes changes will have to be made to support
2195          * RAID/SCSI.  the function aac_scsi_cmd in this module will have to be
2196          * changed to support the new dev->raid_scsi_mode flag instead of
2197          * leaching off of the dev->nondasd_support flag. Also in linit.c the
2198          * function aac_detect will have to be modified where it sets up the
2199          * max number of channels based on the aac->nondasd_support flag only.
2200          */
2201         if ((dev->adapter_info.options & AAC_OPT_SCSI_MANAGED) &&
2202             (dev->adapter_info.options & AAC_OPT_RAID_SCSI_MODE)) {
2203                 dev->nondasd_support = 1;
2204                 dev->raid_scsi_mode = 1;
2205         }
2206         if (dev->raid_scsi_mode != 0)
2207                 printk(KERN_INFO "%s%d: ROMB RAID/SCSI mode enabled\n",
2208                                 dev->name, dev->id);
2209
2210         if (nondasd != -1)
2211                 dev->nondasd_support = (nondasd!=0);
2212         if (dev->nondasd_support && !dev->in_reset)
2213                 printk(KERN_INFO "%s%d: Non-DASD support enabled.\n",dev->name, dev->id);
2214
2215         if (dma_get_required_mask(&dev->pdev->dev) > DMA_BIT_MASK(32))
2216                 dev->needs_dac = 1;
2217         dev->dac_support = 0;
2218         if ((sizeof(dma_addr_t) > 4) && dev->needs_dac &&
2219             (dev->adapter_info.options & AAC_OPT_SGMAP_HOST64)) {
2220                 if (!dev->in_reset)
2221                         printk(KERN_INFO "%s%d: 64bit support enabled.\n",
2222                                 dev->name, dev->id);
2223                 dev->dac_support = 1;
2224         }
2225
2226         if(dacmode != -1) {
2227                 dev->dac_support = (dacmode!=0);
2228         }
2229
2230         /* avoid problems with AAC_QUIRK_SCSI_32 controllers */
2231         if (dev->dac_support && (aac_get_driver_ident(dev->cardtype)->quirks
2232                 & AAC_QUIRK_SCSI_32)) {
2233                 dev->nondasd_support = 0;
2234                 dev->jbod = 0;
2235                 expose_physicals = 0;
2236         }
2237
2238         if (dev->dac_support) {
2239                 if (!dma_set_mask(&dev->pdev->dev, DMA_BIT_MASK(64))) {
2240                         if (!dev->in_reset)
2241                                 dev_info(&dev->pdev->dev, "64 Bit DAC enabled\n");
2242                 } else if (!dma_set_mask(&dev->pdev->dev, DMA_BIT_MASK(32))) {
2243                         dev_info(&dev->pdev->dev, "DMA mask set failed, 64 Bit DAC disabled\n");
2244                         dev->dac_support = 0;
2245                 } else {
2246                         dev_info(&dev->pdev->dev, "No suitable DMA available\n");
2247                         rcode = -ENOMEM;
2248                 }
2249         }
2250         /*
2251          * Deal with configuring for the individualized limits of each packet
2252          * interface.
2253          */
2254         dev->a_ops.adapter_scsi = (dev->dac_support)
2255           ? ((aac_get_driver_ident(dev->cardtype)->quirks & AAC_QUIRK_SCSI_32)
2256                                 ? aac_scsi_32_64
2257                                 : aac_scsi_64)
2258                                 : aac_scsi_32;
2259         if (dev->raw_io_interface) {
2260                 dev->a_ops.adapter_bounds = (dev->raw_io_64)
2261                                         ? aac_bounds_64
2262                                         : aac_bounds_32;
2263                 dev->a_ops.adapter_read = aac_read_raw_io;
2264                 dev->a_ops.adapter_write = aac_write_raw_io;
2265         } else {
2266                 dev->a_ops.adapter_bounds = aac_bounds_32;
2267                 dev->scsi_host_ptr->sg_tablesize = (dev->max_fib_size -
2268                         sizeof(struct aac_fibhdr) -
2269                         sizeof(struct aac_write)) /
2270                                 sizeof(struct sgentry);
2271                 if (dev->dac_support) {
2272                         dev->a_ops.adapter_read = aac_read_block64;
2273                         dev->a_ops.adapter_write = aac_write_block64;
2274                         /*
2275                          * 38 scatter gather elements
2276                          */
2277                         dev->scsi_host_ptr->sg_tablesize =
2278                                 (dev->max_fib_size -
2279                                 sizeof(struct aac_fibhdr) -
2280                                 sizeof(struct aac_write64)) /
2281                                         sizeof(struct sgentry64);
2282                 } else {
2283                         dev->a_ops.adapter_read = aac_read_block;
2284                         dev->a_ops.adapter_write = aac_write_block;
2285                 }
2286                 dev->scsi_host_ptr->max_sectors = AAC_MAX_32BIT_SGBCOUNT;
2287                 if (!(dev->adapter_info.options & AAC_OPT_NEW_COMM)) {
2288                         /*
2289                          * Worst case size that could cause sg overflow when
2290                          * we break up SG elements that are larger than 64KB.
2291                          * Would be nice if we could tell the SCSI layer what
2292                          * the maximum SG element size can be. Worst case is
2293                          * (sg_tablesize-1) 4KB elements with one 64KB
2294                          * element.
2295                          *      32bit -> 468 or 238KB   64bit -> 424 or 212KB
2296                          */
2297                         dev->scsi_host_ptr->max_sectors =
2298                           (dev->scsi_host_ptr->sg_tablesize * 8) + 112;
2299                 }
2300         }
2301         if (!dev->sync_mode && dev->sa_firmware &&
2302                 dev->scsi_host_ptr->sg_tablesize > HBA_MAX_SG_SEPARATE)
2303                 dev->scsi_host_ptr->sg_tablesize = dev->sg_tablesize =
2304                         HBA_MAX_SG_SEPARATE;
2305
2306         /* FIB should be freed only after getting the response from the F/W */
2307         if (rcode != -ERESTARTSYS) {
2308                 aac_fib_complete(fibptr);
2309                 aac_fib_free(fibptr);
2310         }
2311
2312         return rcode;
2313 }
2314
2315
2316 static void io_callback(void *context, struct fib * fibptr)
2317 {
2318         struct aac_dev *dev;
2319         struct aac_read_reply *readreply;
2320         struct scsi_cmnd *scsicmd;
2321         u32 cid;
2322
2323         scsicmd = (struct scsi_cmnd *) context;
2324
2325         if (!aac_valid_context(scsicmd, fibptr))
2326                 return;
2327
2328         dev = fibptr->dev;
2329         cid = scmd_id(scsicmd);
2330
2331         if (nblank(dprintk(x))) {
2332                 u64 lba;
2333                 switch (scsicmd->cmnd[0]) {
2334                 case WRITE_6:
2335                 case READ_6:
2336                         lba = ((scsicmd->cmnd[1] & 0x1F) << 16) |
2337                             (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
2338                         break;
2339                 case WRITE_16:
2340                 case READ_16:
2341                         lba = ((u64)scsicmd->cmnd[2] << 56) |
2342                               ((u64)scsicmd->cmnd[3] << 48) |
2343                               ((u64)scsicmd->cmnd[4] << 40) |
2344                               ((u64)scsicmd->cmnd[5] << 32) |
2345                               ((u64)scsicmd->cmnd[6] << 24) |
2346                               (scsicmd->cmnd[7] << 16) |
2347                               (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
2348                         break;
2349                 case WRITE_12:
2350                 case READ_12:
2351                         lba = ((u64)scsicmd->cmnd[2] << 24) |
2352                               (scsicmd->cmnd[3] << 16) |
2353                               (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
2354                         break;
2355                 default:
2356                         lba = ((u64)scsicmd->cmnd[2] << 24) |
2357                                (scsicmd->cmnd[3] << 16) |
2358                                (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
2359                         break;
2360                 }
2361                 printk(KERN_DEBUG
2362                   "io_callback[cpu %d]: lba = %llu, t = %ld.\n",
2363                   smp_processor_id(), (unsigned long long)lba, jiffies);
2364         }
2365
2366         BUG_ON(fibptr == NULL);
2367
2368         scsi_dma_unmap(scsicmd);
2369
2370         readreply = (struct aac_read_reply *)fib_data(fibptr);
2371         switch (le32_to_cpu(readreply->status)) {
2372         case ST_OK:
2373                 scsicmd->result = DID_OK << 16 | SAM_STAT_GOOD;
2374                 dev->fsa_dev[cid].sense_data.sense_key = NO_SENSE;
2375                 break;
2376         case ST_NOT_READY:
2377                 scsicmd->result = DID_OK << 16 | SAM_STAT_CHECK_CONDITION;
2378                 set_sense(&dev->fsa_dev[cid].sense_data, NOT_READY,
2379                   SENCODE_BECOMING_READY, ASENCODE_BECOMING_READY, 0, 0);
2380                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
2381                        min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
2382                              SCSI_SENSE_BUFFERSIZE));
2383                 break;
2384         case ST_MEDERR:
2385                 scsicmd->result = DID_OK << 16 | SAM_STAT_CHECK_CONDITION;
2386                 set_sense(&dev->fsa_dev[cid].sense_data, MEDIUM_ERROR,
2387                   SENCODE_UNRECOVERED_READ_ERROR, ASENCODE_NO_SENSE, 0, 0);
2388                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
2389                        min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
2390                              SCSI_SENSE_BUFFERSIZE));
2391                 break;
2392         default:
2393 #ifdef AAC_DETAILED_STATUS_INFO
2394                 printk(KERN_WARNING "io_callback: io failed, status = %d\n",
2395                   le32_to_cpu(readreply->status));
2396 #endif
2397                 scsicmd->result = DID_OK << 16 | SAM_STAT_CHECK_CONDITION;
2398                 set_sense(&dev->fsa_dev[cid].sense_data,
2399                   HARDWARE_ERROR, SENCODE_INTERNAL_TARGET_FAILURE,
2400                   ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0);
2401                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
2402                        min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
2403                              SCSI_SENSE_BUFFERSIZE));
2404                 break;
2405         }
2406         aac_fib_complete(fibptr);
2407
2408         aac_scsi_done(scsicmd);
2409 }
2410
2411 static int aac_read(struct scsi_cmnd * scsicmd)
2412 {
2413         u64 lba;
2414         u32 count;
2415         int status;
2416         struct aac_dev *dev;
2417         struct fib * cmd_fibcontext;
2418         int cid;
2419
2420         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2421         /*
2422          *      Get block address and transfer length
2423          */
2424         switch (scsicmd->cmnd[0]) {
2425         case READ_6:
2426                 dprintk((KERN_DEBUG "aachba: received a read(6) command on id %d.\n", scmd_id(scsicmd)));
2427
2428                 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) |
2429                         (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
2430                 count = scsicmd->cmnd[4];
2431
2432                 if (count == 0)
2433                         count = 256;
2434                 break;
2435         case READ_16:
2436                 dprintk((KERN_DEBUG "aachba: received a read(16) command on id %d.\n", scmd_id(scsicmd)));
2437
2438                 lba =   ((u64)scsicmd->cmnd[2] << 56) |
2439                         ((u64)scsicmd->cmnd[3] << 48) |
2440                         ((u64)scsicmd->cmnd[4] << 40) |
2441                         ((u64)scsicmd->cmnd[5] << 32) |
2442                         ((u64)scsicmd->cmnd[6] << 24) |
2443                         (scsicmd->cmnd[7] << 16) |
2444                         (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
2445                 count = (scsicmd->cmnd[10] << 24) |
2446                         (scsicmd->cmnd[11] << 16) |
2447                         (scsicmd->cmnd[12] << 8) | scsicmd->cmnd[13];
2448                 break;
2449         case READ_12:
2450                 dprintk((KERN_DEBUG "aachba: received a read(12) command on id %d.\n", scmd_id(scsicmd)));
2451
2452                 lba = ((u64)scsicmd->cmnd[2] << 24) |
2453                         (scsicmd->cmnd[3] << 16) |
2454                         (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
2455                 count = (scsicmd->cmnd[6] << 24) |
2456                         (scsicmd->cmnd[7] << 16) |
2457                         (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
2458                 break;
2459         default:
2460                 dprintk((KERN_DEBUG "aachba: received a read(10) command on id %d.\n", scmd_id(scsicmd)));
2461
2462                 lba = ((u64)scsicmd->cmnd[2] << 24) |
2463                         (scsicmd->cmnd[3] << 16) |
2464                         (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
2465                 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
2466                 break;
2467         }
2468
2469         if ((lba + count) > (dev->fsa_dev[scmd_id(scsicmd)].size)) {
2470                 cid = scmd_id(scsicmd);
2471                 dprintk((KERN_DEBUG "aacraid: Illegal lba\n"));
2472                 scsicmd->result = DID_OK << 16 | SAM_STAT_CHECK_CONDITION;
2473                 set_sense(&dev->fsa_dev[cid].sense_data,
2474                           ILLEGAL_REQUEST, SENCODE_LBA_OUT_OF_RANGE,
2475                           ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0);
2476                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
2477                        min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
2478                              SCSI_SENSE_BUFFERSIZE));
2479                 aac_scsi_done(scsicmd);
2480                 return 0;
2481         }
2482
2483         dprintk((KERN_DEBUG "aac_read[cpu %d]: lba = %llu, t = %ld.\n",
2484           smp_processor_id(), (unsigned long long)lba, jiffies));
2485         if (aac_adapter_bounds(dev,scsicmd,lba))
2486                 return 0;
2487         /*
2488          *      Alocate and initialize a Fib
2489          */
2490         cmd_fibcontext = aac_fib_alloc_tag(dev, scsicmd);
2491         aac_priv(scsicmd)->owner = AAC_OWNER_FIRMWARE;
2492         status = aac_adapter_read(cmd_fibcontext, scsicmd, lba, count);
2493
2494         /*
2495          *      Check that the command queued to the controller
2496          */
2497         if (status == -EINPROGRESS)
2498                 return 0;
2499
2500         printk(KERN_WARNING "aac_read: aac_fib_send failed with status: %d.\n", status);
2501         /*
2502          *      For some reason, the Fib didn't queue, return QUEUE_FULL
2503          */
2504         scsicmd->result = DID_OK << 16 | SAM_STAT_TASK_SET_FULL;
2505         aac_scsi_done(scsicmd);
2506         aac_fib_complete(cmd_fibcontext);
2507         aac_fib_free(cmd_fibcontext);
2508         return 0;
2509 }
2510
2511 static int aac_write(struct scsi_cmnd * scsicmd)
2512 {
2513         u64 lba;
2514         u32 count;
2515         int fua;
2516         int status;
2517         struct aac_dev *dev;
2518         struct fib * cmd_fibcontext;
2519         int cid;
2520
2521         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2522         /*
2523          *      Get block address and transfer length
2524          */
2525         if (scsicmd->cmnd[0] == WRITE_6)        /* 6 byte command */
2526         {
2527                 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
2528                 count = scsicmd->cmnd[4];
2529                 if (count == 0)
2530                         count = 256;
2531                 fua = 0;
2532         } else if (scsicmd->cmnd[0] == WRITE_16) { /* 16 byte command */
2533                 dprintk((KERN_DEBUG "aachba: received a write(16) command on id %d.\n", scmd_id(scsicmd)));
2534
2535                 lba =   ((u64)scsicmd->cmnd[2] << 56) |
2536                         ((u64)scsicmd->cmnd[3] << 48) |
2537                         ((u64)scsicmd->cmnd[4] << 40) |
2538                         ((u64)scsicmd->cmnd[5] << 32) |
2539                         ((u64)scsicmd->cmnd[6] << 24) |
2540                         (scsicmd->cmnd[7] << 16) |
2541                         (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
2542                 count = (scsicmd->cmnd[10] << 24) | (scsicmd->cmnd[11] << 16) |
2543                         (scsicmd->cmnd[12] << 8) | scsicmd->cmnd[13];
2544                 fua = scsicmd->cmnd[1] & 0x8;
2545         } else if (scsicmd->cmnd[0] == WRITE_12) { /* 12 byte command */
2546                 dprintk((KERN_DEBUG "aachba: received a write(12) command on id %d.\n", scmd_id(scsicmd)));
2547
2548                 lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16)
2549                     | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
2550                 count = (scsicmd->cmnd[6] << 24) | (scsicmd->cmnd[7] << 16)
2551                       | (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
2552                 fua = scsicmd->cmnd[1] & 0x8;
2553         } else {
2554                 dprintk((KERN_DEBUG "aachba: received a write(10) command on id %d.\n", scmd_id(scsicmd)));
2555                 lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
2556                 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
2557                 fua = scsicmd->cmnd[1] & 0x8;
2558         }
2559
2560         if ((lba + count) > (dev->fsa_dev[scmd_id(scsicmd)].size)) {
2561                 cid = scmd_id(scsicmd);
2562                 dprintk((KERN_DEBUG "aacraid: Illegal lba\n"));
2563                 scsicmd->result = DID_OK << 16 | SAM_STAT_CHECK_CONDITION;
2564                 set_sense(&dev->fsa_dev[cid].sense_data,
2565                           ILLEGAL_REQUEST, SENCODE_LBA_OUT_OF_RANGE,
2566                           ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0);
2567                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
2568                        min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
2569                              SCSI_SENSE_BUFFERSIZE));
2570                 aac_scsi_done(scsicmd);
2571                 return 0;
2572         }
2573
2574         dprintk((KERN_DEBUG "aac_write[cpu %d]: lba = %llu, t = %ld.\n",
2575           smp_processor_id(), (unsigned long long)lba, jiffies));
2576         if (aac_adapter_bounds(dev,scsicmd,lba))
2577                 return 0;
2578         /*
2579          *      Allocate and initialize a Fib then setup a BlockWrite command
2580          */
2581         cmd_fibcontext = aac_fib_alloc_tag(dev, scsicmd);
2582         aac_priv(scsicmd)->owner = AAC_OWNER_FIRMWARE;
2583         status = aac_adapter_write(cmd_fibcontext, scsicmd, lba, count, fua);
2584
2585         /*
2586          *      Check that the command queued to the controller
2587          */
2588         if (status == -EINPROGRESS)
2589                 return 0;
2590
2591         printk(KERN_WARNING "aac_write: aac_fib_send failed with status: %d\n", status);
2592         /*
2593          *      For some reason, the Fib didn't queue, return QUEUE_FULL
2594          */
2595         scsicmd->result = DID_OK << 16 | SAM_STAT_TASK_SET_FULL;
2596         aac_scsi_done(scsicmd);
2597
2598         aac_fib_complete(cmd_fibcontext);
2599         aac_fib_free(cmd_fibcontext);
2600         return 0;
2601 }
2602
2603 static void synchronize_callback(void *context, struct fib *fibptr)
2604 {
2605         struct aac_synchronize_reply *synchronizereply;
2606         struct scsi_cmnd *cmd = context;
2607
2608         if (!aac_valid_context(cmd, fibptr))
2609                 return;
2610
2611         dprintk((KERN_DEBUG "synchronize_callback[cpu %d]: t = %ld.\n",
2612                                 smp_processor_id(), jiffies));
2613         BUG_ON(fibptr == NULL);
2614
2615
2616         synchronizereply = fib_data(fibptr);
2617         if (le32_to_cpu(synchronizereply->status) == CT_OK)
2618                 cmd->result = DID_OK << 16 | SAM_STAT_GOOD;
2619         else {
2620                 struct scsi_device *sdev = cmd->device;
2621                 struct aac_dev *dev = fibptr->dev;
2622                 u32 cid = sdev_id(sdev);
2623                 printk(KERN_WARNING
2624                      "synchronize_callback: synchronize failed, status = %d\n",
2625                      le32_to_cpu(synchronizereply->status));
2626                 cmd->result = DID_OK << 16 | SAM_STAT_CHECK_CONDITION;
2627                 set_sense(&dev->fsa_dev[cid].sense_data,
2628                   HARDWARE_ERROR, SENCODE_INTERNAL_TARGET_FAILURE,
2629                   ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0);
2630                 memcpy(cmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
2631                        min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
2632                              SCSI_SENSE_BUFFERSIZE));
2633         }
2634
2635         aac_fib_complete(fibptr);
2636         aac_fib_free(fibptr);
2637         aac_scsi_done(cmd);
2638 }
2639
2640 static int aac_synchronize(struct scsi_cmnd *scsicmd)
2641 {
2642         int status;
2643         struct fib *cmd_fibcontext;
2644         struct aac_synchronize *synchronizecmd;
2645         struct scsi_device *sdev = scsicmd->device;
2646         struct aac_dev *aac;
2647
2648         aac = (struct aac_dev *)sdev->host->hostdata;
2649         if (aac->in_reset)
2650                 return SCSI_MLQUEUE_HOST_BUSY;
2651
2652         /*
2653          *      Allocate and initialize a Fib
2654          */
2655         cmd_fibcontext = aac_fib_alloc_tag(aac, scsicmd);
2656
2657         aac_fib_init(cmd_fibcontext);
2658
2659         synchronizecmd = fib_data(cmd_fibcontext);
2660         synchronizecmd->command = cpu_to_le32(VM_ContainerConfig);
2661         synchronizecmd->type = cpu_to_le32(CT_FLUSH_CACHE);
2662         synchronizecmd->cid = cpu_to_le32(scmd_id(scsicmd));
2663         synchronizecmd->count =
2664              cpu_to_le32(sizeof(((struct aac_synchronize_reply *)NULL)->data));
2665         aac_priv(scsicmd)->owner = AAC_OWNER_FIRMWARE;
2666
2667         /*
2668          *      Now send the Fib to the adapter
2669          */
2670         status = aac_fib_send(ContainerCommand,
2671                   cmd_fibcontext,
2672                   sizeof(struct aac_synchronize),
2673                   FsaNormal,
2674                   0, 1,
2675                   (fib_callback)synchronize_callback,
2676                   (void *)scsicmd);
2677
2678         /*
2679          *      Check that the command queued to the controller
2680          */
2681         if (status == -EINPROGRESS)
2682                 return 0;
2683
2684         printk(KERN_WARNING
2685                 "aac_synchronize: aac_fib_send failed with status: %d.\n", status);
2686         aac_fib_complete(cmd_fibcontext);
2687         aac_fib_free(cmd_fibcontext);
2688         return SCSI_MLQUEUE_HOST_BUSY;
2689 }
2690
2691 static void aac_start_stop_callback(void *context, struct fib *fibptr)
2692 {
2693         struct scsi_cmnd *scsicmd = context;
2694
2695         if (!aac_valid_context(scsicmd, fibptr))
2696                 return;
2697
2698         BUG_ON(fibptr == NULL);
2699
2700         scsicmd->result = DID_OK << 16 | SAM_STAT_GOOD;
2701
2702         aac_fib_complete(fibptr);
2703         aac_fib_free(fibptr);
2704         aac_scsi_done(scsicmd);
2705 }
2706
2707 static int aac_start_stop(struct scsi_cmnd *scsicmd)
2708 {
2709         int status;
2710         struct fib *cmd_fibcontext;
2711         struct aac_power_management *pmcmd;
2712         struct scsi_device *sdev = scsicmd->device;
2713         struct aac_dev *aac = (struct aac_dev *)sdev->host->hostdata;
2714
2715         if (!(aac->supplement_adapter_info.supported_options2 &
2716               AAC_OPTION_POWER_MANAGEMENT)) {
2717                 scsicmd->result = DID_OK << 16 | SAM_STAT_GOOD;
2718                 aac_scsi_done(scsicmd);
2719                 return 0;
2720         }
2721
2722         if (aac->in_reset)
2723                 return SCSI_MLQUEUE_HOST_BUSY;
2724
2725         /*
2726          *      Allocate and initialize a Fib
2727          */
2728         cmd_fibcontext = aac_fib_alloc_tag(aac, scsicmd);
2729
2730         aac_fib_init(cmd_fibcontext);
2731
2732         pmcmd = fib_data(cmd_fibcontext);
2733         pmcmd->command = cpu_to_le32(VM_ContainerConfig);
2734         pmcmd->type = cpu_to_le32(CT_POWER_MANAGEMENT);
2735         /* Eject bit ignored, not relevant */
2736         pmcmd->sub = (scsicmd->cmnd[4] & 1) ?
2737                 cpu_to_le32(CT_PM_START_UNIT) : cpu_to_le32(CT_PM_STOP_UNIT);
2738         pmcmd->cid = cpu_to_le32(sdev_id(sdev));
2739         pmcmd->parm = (scsicmd->cmnd[1] & 1) ?
2740                 cpu_to_le32(CT_PM_UNIT_IMMEDIATE) : 0;
2741         aac_priv(scsicmd)->owner = AAC_OWNER_FIRMWARE;
2742
2743         /*
2744          *      Now send the Fib to the adapter
2745          */
2746         status = aac_fib_send(ContainerCommand,
2747                   cmd_fibcontext,
2748                   sizeof(struct aac_power_management),
2749                   FsaNormal,
2750                   0, 1,
2751                   (fib_callback)aac_start_stop_callback,
2752                   (void *)scsicmd);
2753
2754         /*
2755          *      Check that the command queued to the controller
2756          */
2757         if (status == -EINPROGRESS)
2758                 return 0;
2759
2760         aac_fib_complete(cmd_fibcontext);
2761         aac_fib_free(cmd_fibcontext);
2762         return SCSI_MLQUEUE_HOST_BUSY;
2763 }
2764
2765 /**
2766  *      aac_scsi_cmd()          -       Process SCSI command
2767  *      @scsicmd:               SCSI command block
2768  *
2769  *      Emulate a SCSI command and queue the required request for the
2770  *      aacraid firmware.
2771  */
2772
2773 int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
2774 {
2775         u32 cid, bus;
2776         struct Scsi_Host *host = scsicmd->device->host;
2777         struct aac_dev *dev = (struct aac_dev *)host->hostdata;
2778         struct fsa_dev_info *fsa_dev_ptr = dev->fsa_dev;
2779
2780         if (fsa_dev_ptr == NULL)
2781                 return -1;
2782         /*
2783          *      If the bus, id or lun is out of range, return fail
2784          *      Test does not apply to ID 16, the pseudo id for the controller
2785          *      itself.
2786          */
2787         cid = scmd_id(scsicmd);
2788         if (cid != host->this_id) {
2789                 if (scmd_channel(scsicmd) == CONTAINER_CHANNEL) {
2790                         if((cid >= dev->maximum_num_containers) ||
2791                                         (scsicmd->device->lun != 0)) {
2792                                 scsicmd->result = DID_NO_CONNECT << 16;
2793                                 goto scsi_done_ret;
2794                         }
2795
2796                         /*
2797                          *      If the target container doesn't exist, it may have
2798                          *      been newly created
2799                          */
2800                         if (((fsa_dev_ptr[cid].valid & 1) == 0) ||
2801                           (fsa_dev_ptr[cid].sense_data.sense_key ==
2802                            NOT_READY)) {
2803                                 switch (scsicmd->cmnd[0]) {
2804                                 case SERVICE_ACTION_IN_16:
2805                                         if (!(dev->raw_io_interface) ||
2806                                             !(dev->raw_io_64) ||
2807                                             ((scsicmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16))
2808                                                 break;
2809                                         fallthrough;
2810                                 case INQUIRY:
2811                                 case READ_CAPACITY:
2812                                 case TEST_UNIT_READY:
2813                                         if (dev->in_reset)
2814                                                 return -1;
2815                                         return _aac_probe_container(scsicmd,
2816                                                         aac_probe_container_callback2);
2817                                 default:
2818                                         break;
2819                                 }
2820                         }
2821                 } else {  /* check for physical non-dasd devices */
2822                         bus = aac_logical_to_phys(scmd_channel(scsicmd));
2823
2824                         if (bus < AAC_MAX_BUSES && cid < AAC_MAX_TARGETS &&
2825                                 dev->hba_map[bus][cid].devtype
2826                                         == AAC_DEVTYPE_NATIVE_RAW) {
2827                                 if (dev->in_reset)
2828                                         return -1;
2829                                 return aac_send_hba_fib(scsicmd);
2830                         } else if (dev->nondasd_support || expose_physicals ||
2831                                 dev->jbod) {
2832                                 if (dev->in_reset)
2833                                         return -1;
2834                                 return aac_send_srb_fib(scsicmd);
2835                         } else {
2836                                 scsicmd->result = DID_NO_CONNECT << 16;
2837                                 goto scsi_done_ret;
2838                         }
2839                 }
2840         }
2841         /*
2842          * else Command for the controller itself
2843          */
2844         else if ((scsicmd->cmnd[0] != INQUIRY) &&       /* only INQUIRY & TUR cmnd supported for controller */
2845                 (scsicmd->cmnd[0] != TEST_UNIT_READY))
2846         {
2847                 dprintk((KERN_WARNING "Only INQUIRY & TUR command supported for controller, rcvd = 0x%x.\n", scsicmd->cmnd[0]));
2848                 scsicmd->result = DID_OK << 16 | SAM_STAT_CHECK_CONDITION;
2849                 set_sense(&dev->fsa_dev[cid].sense_data,
2850                   ILLEGAL_REQUEST, SENCODE_INVALID_COMMAND,
2851                   ASENCODE_INVALID_COMMAND, 0, 0);
2852                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
2853                        min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
2854                              SCSI_SENSE_BUFFERSIZE));
2855                 goto scsi_done_ret;
2856         }
2857
2858         switch (scsicmd->cmnd[0]) {
2859         case READ_6:
2860         case READ_10:
2861         case READ_12:
2862         case READ_16:
2863                 if (dev->in_reset)
2864                         return -1;
2865                 return aac_read(scsicmd);
2866
2867         case WRITE_6:
2868         case WRITE_10:
2869         case WRITE_12:
2870         case WRITE_16:
2871                 if (dev->in_reset)
2872                         return -1;
2873                 return aac_write(scsicmd);
2874
2875         case SYNCHRONIZE_CACHE:
2876                 if (((aac_cache & 6) == 6) && dev->cache_protected) {
2877                         scsicmd->result = DID_OK << 16 | SAM_STAT_GOOD;
2878                         break;
2879                 }
2880                 /* Issue FIB to tell Firmware to flush it's cache */
2881                 if ((aac_cache & 6) != 2)
2882                         return aac_synchronize(scsicmd);
2883                 fallthrough;
2884         case INQUIRY:
2885         {
2886                 struct inquiry_data inq_data;
2887
2888                 dprintk((KERN_DEBUG "INQUIRY command, ID: %d.\n", cid));
2889                 memset(&inq_data, 0, sizeof (struct inquiry_data));
2890
2891                 if ((scsicmd->cmnd[1] & 0x1) && aac_wwn) {
2892                         char *arr = (char *)&inq_data;
2893
2894                         /* EVPD bit set */
2895                         arr[0] = (scmd_id(scsicmd) == host->this_id) ?
2896                           INQD_PDT_PROC : INQD_PDT_DA;
2897                         if (scsicmd->cmnd[2] == 0) {
2898                                 /* supported vital product data pages */
2899                                 arr[3] = 3;
2900                                 arr[4] = 0x0;
2901                                 arr[5] = 0x80;
2902                                 arr[6] = 0x83;
2903                                 arr[1] = scsicmd->cmnd[2];
2904                                 scsi_sg_copy_from_buffer(scsicmd, &inq_data,
2905                                                          sizeof(inq_data));
2906                                 scsicmd->result = DID_OK << 16 | SAM_STAT_GOOD;
2907                         } else if (scsicmd->cmnd[2] == 0x80) {
2908                                 /* unit serial number page */
2909                                 arr[3] = setinqserial(dev, &arr[4],
2910                                   scmd_id(scsicmd));
2911                                 arr[1] = scsicmd->cmnd[2];
2912                                 scsi_sg_copy_from_buffer(scsicmd, &inq_data,
2913                                                          sizeof(inq_data));
2914                                 if (aac_wwn != 2)
2915                                         return aac_get_container_serial(
2916                                                 scsicmd);
2917                                 scsicmd->result = DID_OK << 16 | SAM_STAT_GOOD;
2918                         } else if (scsicmd->cmnd[2] == 0x83) {
2919                                 /* vpd page 0x83 - Device Identification Page */
2920                                 char *sno = (char *)&inq_data;
2921                                 sno[3] = setinqserial(dev, &sno[4],
2922                                                       scmd_id(scsicmd));
2923                                 if (aac_wwn != 2)
2924                                         return aac_get_container_serial(
2925                                                 scsicmd);
2926                                 scsicmd->result = DID_OK << 16 | SAM_STAT_GOOD;
2927                         } else {
2928                                 /* vpd page not implemented */
2929                                 scsicmd->result = DID_OK << 16 | SAM_STAT_CHECK_CONDITION;
2930                                 set_sense(&dev->fsa_dev[cid].sense_data,
2931                                   ILLEGAL_REQUEST, SENCODE_INVALID_CDB_FIELD,
2932                                   ASENCODE_NO_SENSE, 7, 2);
2933                                 memcpy(scsicmd->sense_buffer,
2934                                   &dev->fsa_dev[cid].sense_data,
2935                                   min_t(size_t,
2936                                         sizeof(dev->fsa_dev[cid].sense_data),
2937                                         SCSI_SENSE_BUFFERSIZE));
2938                         }
2939                         break;
2940                 }
2941                 inq_data.inqd_ver = 2;  /* claim compliance to SCSI-2 */
2942                 inq_data.inqd_rdf = 2;  /* A response data format value of two indicates that the data shall be in the format specified in SCSI-2 */
2943                 inq_data.inqd_len = 31;
2944                 /*Format for "pad2" is  RelAdr | WBus32 | WBus16 |  Sync  | Linked |Reserved| CmdQue | SftRe */
2945                 inq_data.inqd_pad2= 0x32 ;       /*WBus16|Sync|CmdQue */
2946                 /*
2947                  *      Set the Vendor, Product, and Revision Level
2948                  *      see: <vendor>.c i.e. aac.c
2949                  */
2950                 if (cid == host->this_id) {
2951                         setinqstr(dev, (void *) (inq_data.inqd_vid), ARRAY_SIZE(container_types));
2952                         inq_data.inqd_pdt = INQD_PDT_PROC;      /* Processor device */
2953                         scsi_sg_copy_from_buffer(scsicmd, &inq_data,
2954                                                  sizeof(inq_data));
2955                         scsicmd->result = DID_OK << 16 | SAM_STAT_GOOD;
2956                         break;
2957                 }
2958                 if (dev->in_reset)
2959                         return -1;
2960                 setinqstr(dev, (void *) (inq_data.inqd_vid), fsa_dev_ptr[cid].type);
2961                 inq_data.inqd_pdt = INQD_PDT_DA;        /* Direct/random access device */
2962                 scsi_sg_copy_from_buffer(scsicmd, &inq_data, sizeof(inq_data));
2963                 return aac_get_container_name(scsicmd);
2964         }
2965         case SERVICE_ACTION_IN_16:
2966                 if (!(dev->raw_io_interface) ||
2967                     !(dev->raw_io_64) ||
2968                     ((scsicmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16))
2969                         break;
2970         {
2971                 u64 capacity;
2972                 char cp[13];
2973                 unsigned int alloc_len;
2974
2975                 dprintk((KERN_DEBUG "READ CAPACITY_16 command.\n"));
2976                 capacity = fsa_dev_ptr[cid].size - 1;
2977                 cp[0] = (capacity >> 56) & 0xff;
2978                 cp[1] = (capacity >> 48) & 0xff;
2979                 cp[2] = (capacity >> 40) & 0xff;
2980                 cp[3] = (capacity >> 32) & 0xff;
2981                 cp[4] = (capacity >> 24) & 0xff;
2982                 cp[5] = (capacity >> 16) & 0xff;
2983                 cp[6] = (capacity >> 8) & 0xff;
2984                 cp[7] = (capacity >> 0) & 0xff;
2985                 cp[8] = (fsa_dev_ptr[cid].block_size >> 24) & 0xff;
2986                 cp[9] = (fsa_dev_ptr[cid].block_size >> 16) & 0xff;
2987                 cp[10] = (fsa_dev_ptr[cid].block_size >> 8) & 0xff;
2988                 cp[11] = (fsa_dev_ptr[cid].block_size) & 0xff;
2989                 cp[12] = 0;
2990
2991                 alloc_len = ((scsicmd->cmnd[10] << 24)
2992                              + (scsicmd->cmnd[11] << 16)
2993                              + (scsicmd->cmnd[12] << 8) + scsicmd->cmnd[13]);
2994
2995                 alloc_len = min_t(size_t, alloc_len, sizeof(cp));
2996                 scsi_sg_copy_from_buffer(scsicmd, cp, alloc_len);
2997                 if (alloc_len < scsi_bufflen(scsicmd))
2998                         scsi_set_resid(scsicmd,
2999                                        scsi_bufflen(scsicmd) - alloc_len);
3000
3001                 /* Do not cache partition table for arrays */
3002                 scsicmd->device->removable = 1;
3003
3004                 scsicmd->result = DID_OK << 16 | SAM_STAT_GOOD;
3005                 break;
3006         }
3007
3008         case READ_CAPACITY:
3009         {
3010                 u32 capacity;
3011                 char cp[8];
3012
3013                 dprintk((KERN_DEBUG "READ CAPACITY command.\n"));
3014                 if (fsa_dev_ptr[cid].size <= 0x100000000ULL)
3015                         capacity = fsa_dev_ptr[cid].size - 1;
3016                 else
3017                         capacity = (u32)-1;
3018
3019                 cp[0] = (capacity >> 24) & 0xff;
3020                 cp[1] = (capacity >> 16) & 0xff;
3021                 cp[2] = (capacity >> 8) & 0xff;
3022                 cp[3] = (capacity >> 0) & 0xff;
3023                 cp[4] = (fsa_dev_ptr[cid].block_size >> 24) & 0xff;
3024                 cp[5] = (fsa_dev_ptr[cid].block_size >> 16) & 0xff;
3025                 cp[6] = (fsa_dev_ptr[cid].block_size >> 8) & 0xff;
3026                 cp[7] = (fsa_dev_ptr[cid].block_size) & 0xff;
3027                 scsi_sg_copy_from_buffer(scsicmd, cp, sizeof(cp));
3028                 /* Do not cache partition table for arrays */
3029                 scsicmd->device->removable = 1;
3030                 scsicmd->result = DID_OK << 16 | SAM_STAT_GOOD;
3031                 break;
3032         }
3033
3034         case MODE_SENSE:
3035         {
3036                 int mode_buf_length = 4;
3037                 u32 capacity;
3038                 aac_modep_data mpd;
3039
3040                 if (fsa_dev_ptr[cid].size <= 0x100000000ULL)
3041                         capacity = fsa_dev_ptr[cid].size - 1;
3042                 else
3043                         capacity = (u32)-1;
3044
3045                 dprintk((KERN_DEBUG "MODE SENSE command.\n"));
3046                 memset((char *)&mpd, 0, sizeof(aac_modep_data));
3047
3048                 /* Mode data length */
3049                 mpd.hd.data_length = sizeof(mpd.hd) - 1;
3050                 /* Medium type - default */
3051                 mpd.hd.med_type = 0;
3052                 /* Device-specific param,
3053                    bit 8: 0/1 = write enabled/protected
3054                    bit 4: 0/1 = FUA enabled */
3055                 mpd.hd.dev_par = 0;
3056
3057                 if (dev->raw_io_interface && ((aac_cache & 5) != 1))
3058                         mpd.hd.dev_par = 0x10;
3059                 if (scsicmd->cmnd[1] & 0x8)
3060                         mpd.hd.bd_length = 0;   /* Block descriptor length */
3061                 else {
3062                         mpd.hd.bd_length = sizeof(mpd.bd);
3063                         mpd.hd.data_length += mpd.hd.bd_length;
3064                         mpd.bd.block_length[0] =
3065                                 (fsa_dev_ptr[cid].block_size >> 16) & 0xff;
3066                         mpd.bd.block_length[1] =
3067                                 (fsa_dev_ptr[cid].block_size >> 8) &  0xff;
3068                         mpd.bd.block_length[2] =
3069                                 fsa_dev_ptr[cid].block_size  & 0xff;
3070
3071                         mpd.mpc_buf[0] = scsicmd->cmnd[2];
3072                         if (scsicmd->cmnd[2] == 0x1C) {
3073                                 /* page length */
3074                                 mpd.mpc_buf[1] = 0xa;
3075                                 /* Mode data length */
3076                                 mpd.hd.data_length = 23;
3077                         } else {
3078                                 /* Mode data length */
3079                                 mpd.hd.data_length = 15;
3080                         }
3081
3082                         if (capacity > 0xffffff) {
3083                                 mpd.bd.block_count[0] = 0xff;
3084                                 mpd.bd.block_count[1] = 0xff;
3085                                 mpd.bd.block_count[2] = 0xff;
3086                         } else {
3087                                 mpd.bd.block_count[0] = (capacity >> 16) & 0xff;
3088                                 mpd.bd.block_count[1] = (capacity >> 8) & 0xff;
3089                                 mpd.bd.block_count[2] = capacity  & 0xff;
3090                         }
3091                 }
3092                 if (((scsicmd->cmnd[2] & 0x3f) == 8) ||
3093                   ((scsicmd->cmnd[2] & 0x3f) == 0x3f)) {
3094                         mpd.hd.data_length += 3;
3095                         mpd.mpc_buf[0] = 8;
3096                         mpd.mpc_buf[1] = 1;
3097                         mpd.mpc_buf[2] = ((aac_cache & 6) == 2)
3098                                 ? 0 : 0x04; /* WCE */
3099                         mode_buf_length = sizeof(mpd);
3100                 }
3101
3102                 if (mode_buf_length > scsicmd->cmnd[4])
3103                         mode_buf_length = scsicmd->cmnd[4];
3104                 else
3105                         mode_buf_length = sizeof(mpd);
3106                 scsi_sg_copy_from_buffer(scsicmd,
3107                                          (char *)&mpd,
3108                                          mode_buf_length);
3109                 scsicmd->result = DID_OK << 16 | SAM_STAT_GOOD;
3110                 break;
3111         }
3112         case MODE_SENSE_10:
3113         {
3114                 u32 capacity;
3115                 int mode_buf_length = 8;
3116                 aac_modep10_data mpd10;
3117
3118                 if (fsa_dev_ptr[cid].size <= 0x100000000ULL)
3119                         capacity = fsa_dev_ptr[cid].size - 1;
3120                 else
3121                         capacity = (u32)-1;
3122
3123                 dprintk((KERN_DEBUG "MODE SENSE 10 byte command.\n"));
3124                 memset((char *)&mpd10, 0, sizeof(aac_modep10_data));
3125                 /* Mode data length (MSB) */
3126                 mpd10.hd.data_length[0] = 0;
3127                 /* Mode data length (LSB) */
3128                 mpd10.hd.data_length[1] = sizeof(mpd10.hd) - 1;
3129                 /* Medium type - default */
3130                 mpd10.hd.med_type = 0;
3131                 /* Device-specific param,
3132                    bit 8: 0/1 = write enabled/protected
3133                    bit 4: 0/1 = FUA enabled */
3134                 mpd10.hd.dev_par = 0;
3135
3136                 if (dev->raw_io_interface && ((aac_cache & 5) != 1))
3137                         mpd10.hd.dev_par = 0x10;
3138                 mpd10.hd.rsrvd[0] = 0;  /* reserved */
3139                 mpd10.hd.rsrvd[1] = 0;  /* reserved */
3140                 if (scsicmd->cmnd[1] & 0x8) {
3141                         /* Block descriptor length (MSB) */
3142                         mpd10.hd.bd_length[0] = 0;
3143                         /* Block descriptor length (LSB) */
3144                         mpd10.hd.bd_length[1] = 0;
3145                 } else {
3146                         mpd10.hd.bd_length[0] = 0;
3147                         mpd10.hd.bd_length[1] = sizeof(mpd10.bd);
3148
3149                         mpd10.hd.data_length[1] += mpd10.hd.bd_length[1];
3150
3151                         mpd10.bd.block_length[0] =
3152                                 (fsa_dev_ptr[cid].block_size >> 16) & 0xff;
3153                         mpd10.bd.block_length[1] =
3154                                 (fsa_dev_ptr[cid].block_size >> 8) & 0xff;
3155                         mpd10.bd.block_length[2] =
3156                                 fsa_dev_ptr[cid].block_size  & 0xff;
3157
3158                         if (capacity > 0xffffff) {
3159                                 mpd10.bd.block_count[0] = 0xff;
3160                                 mpd10.bd.block_count[1] = 0xff;
3161                                 mpd10.bd.block_count[2] = 0xff;
3162                         } else {
3163                                 mpd10.bd.block_count[0] =
3164                                         (capacity >> 16) & 0xff;
3165                                 mpd10.bd.block_count[1] =
3166                                         (capacity >> 8) & 0xff;
3167                                 mpd10.bd.block_count[2] =
3168                                         capacity  & 0xff;
3169                         }
3170                 }
3171                 if (((scsicmd->cmnd[2] & 0x3f) == 8) ||
3172                   ((scsicmd->cmnd[2] & 0x3f) == 0x3f)) {
3173                         mpd10.hd.data_length[1] += 3;
3174                         mpd10.mpc_buf[0] = 8;
3175                         mpd10.mpc_buf[1] = 1;
3176                         mpd10.mpc_buf[2] = ((aac_cache & 6) == 2)
3177                                 ? 0 : 0x04; /* WCE */
3178                         mode_buf_length = sizeof(mpd10);
3179                         if (mode_buf_length > scsicmd->cmnd[8])
3180                                 mode_buf_length = scsicmd->cmnd[8];
3181                 }
3182                 scsi_sg_copy_from_buffer(scsicmd,
3183                                          (char *)&mpd10,
3184                                          mode_buf_length);
3185
3186                 scsicmd->result = DID_OK << 16 | SAM_STAT_GOOD;
3187                 break;
3188         }
3189         case REQUEST_SENSE:
3190                 dprintk((KERN_DEBUG "REQUEST SENSE command.\n"));
3191                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
3192                                 sizeof(struct sense_data));
3193                 memset(&dev->fsa_dev[cid].sense_data, 0,
3194                                 sizeof(struct sense_data));
3195                 scsicmd->result = DID_OK << 16 | SAM_STAT_GOOD;
3196                 break;
3197
3198         case ALLOW_MEDIUM_REMOVAL:
3199                 dprintk((KERN_DEBUG "LOCK command.\n"));
3200                 if (scsicmd->cmnd[4])
3201                         fsa_dev_ptr[cid].locked = 1;
3202                 else
3203                         fsa_dev_ptr[cid].locked = 0;
3204
3205                 scsicmd->result = DID_OK << 16 | SAM_STAT_GOOD;
3206                 break;
3207         /*
3208          *      These commands are all No-Ops
3209          */
3210         case TEST_UNIT_READY:
3211                 if (fsa_dev_ptr[cid].sense_data.sense_key == NOT_READY) {
3212                         scsicmd->result = DID_OK << 16 | SAM_STAT_CHECK_CONDITION;
3213                         set_sense(&dev->fsa_dev[cid].sense_data,
3214                                   NOT_READY, SENCODE_BECOMING_READY,
3215                                   ASENCODE_BECOMING_READY, 0, 0);
3216                         memcpy(scsicmd->sense_buffer,
3217                                &dev->fsa_dev[cid].sense_data,
3218                                min_t(size_t,
3219                                      sizeof(dev->fsa_dev[cid].sense_data),
3220                                      SCSI_SENSE_BUFFERSIZE));
3221                         break;
3222                 }
3223                 fallthrough;
3224         case RESERVE:
3225         case RELEASE:
3226         case REZERO_UNIT:
3227         case REASSIGN_BLOCKS:
3228         case SEEK_10:
3229                 scsicmd->result = DID_OK << 16 | SAM_STAT_GOOD;
3230                 break;
3231
3232         case START_STOP:
3233                 return aac_start_stop(scsicmd);
3234
3235         default:
3236         /*
3237          *      Unhandled commands
3238          */
3239                 dprintk((KERN_WARNING "Unhandled SCSI Command: 0x%x.\n",
3240                                 scsicmd->cmnd[0]));
3241                 scsicmd->result = DID_OK << 16 | SAM_STAT_CHECK_CONDITION;
3242                 set_sense(&dev->fsa_dev[cid].sense_data,
3243                           ILLEGAL_REQUEST, SENCODE_INVALID_COMMAND,
3244                           ASENCODE_INVALID_COMMAND, 0, 0);
3245                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
3246                                 min_t(size_t,
3247                                       sizeof(dev->fsa_dev[cid].sense_data),
3248                                       SCSI_SENSE_BUFFERSIZE));
3249         }
3250
3251 scsi_done_ret:
3252
3253         aac_scsi_done(scsicmd);
3254         return 0;
3255 }
3256
3257 static int query_disk(struct aac_dev *dev, void __user *arg)
3258 {
3259         struct aac_query_disk qd;
3260         struct fsa_dev_info *fsa_dev_ptr;
3261
3262         fsa_dev_ptr = dev->fsa_dev;
3263         if (!fsa_dev_ptr)
3264                 return -EBUSY;
3265         if (copy_from_user(&qd, arg, sizeof (struct aac_query_disk)))
3266                 return -EFAULT;
3267         if (qd.cnum == -1) {
3268                 if (qd.id < 0 || qd.id >= dev->maximum_num_containers)
3269                         return -EINVAL;
3270                 qd.cnum = qd.id;
3271         } else if ((qd.bus == -1) && (qd.id == -1) && (qd.lun == -1)) {
3272                 if (qd.cnum < 0 || qd.cnum >= dev->maximum_num_containers)
3273                         return -EINVAL;
3274                 qd.instance = dev->scsi_host_ptr->host_no;
3275                 qd.bus = 0;
3276                 qd.id = CONTAINER_TO_ID(qd.cnum);
3277                 qd.lun = CONTAINER_TO_LUN(qd.cnum);
3278         }
3279         else return -EINVAL;
3280
3281         qd.valid = fsa_dev_ptr[qd.cnum].valid != 0;
3282         qd.locked = fsa_dev_ptr[qd.cnum].locked;
3283         qd.deleted = fsa_dev_ptr[qd.cnum].deleted;
3284
3285         if (fsa_dev_ptr[qd.cnum].devname[0] == '\0')
3286                 qd.unmapped = 1;
3287         else
3288                 qd.unmapped = 0;
3289
3290         strscpy(qd.name, fsa_dev_ptr[qd.cnum].devname,
3291           min(sizeof(qd.name), sizeof(fsa_dev_ptr[qd.cnum].devname) + 1));
3292
3293         if (copy_to_user(arg, &qd, sizeof (struct aac_query_disk)))
3294                 return -EFAULT;
3295         return 0;
3296 }
3297
3298 static int force_delete_disk(struct aac_dev *dev, void __user *arg)
3299 {
3300         struct aac_delete_disk dd;
3301         struct fsa_dev_info *fsa_dev_ptr;
3302
3303         fsa_dev_ptr = dev->fsa_dev;
3304         if (!fsa_dev_ptr)
3305                 return -EBUSY;
3306
3307         if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
3308                 return -EFAULT;
3309
3310         if (dd.cnum >= dev->maximum_num_containers)
3311                 return -EINVAL;
3312         /*
3313          *      Mark this container as being deleted.
3314          */
3315         fsa_dev_ptr[dd.cnum].deleted = 1;
3316         /*
3317          *      Mark the container as no longer valid
3318          */
3319         fsa_dev_ptr[dd.cnum].valid = 0;
3320         return 0;
3321 }
3322
3323 static int delete_disk(struct aac_dev *dev, void __user *arg)
3324 {
3325         struct aac_delete_disk dd;
3326         struct fsa_dev_info *fsa_dev_ptr;
3327
3328         fsa_dev_ptr = dev->fsa_dev;
3329         if (!fsa_dev_ptr)
3330                 return -EBUSY;
3331
3332         if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
3333                 return -EFAULT;
3334
3335         if (dd.cnum >= dev->maximum_num_containers)
3336                 return -EINVAL;
3337         /*
3338          *      If the container is locked, it can not be deleted by the API.
3339          */
3340         if (fsa_dev_ptr[dd.cnum].locked)
3341                 return -EBUSY;
3342         else {
3343                 /*
3344                  *      Mark the container as no longer being valid.
3345                  */
3346                 fsa_dev_ptr[dd.cnum].valid = 0;
3347                 fsa_dev_ptr[dd.cnum].devname[0] = '\0';
3348                 return 0;
3349         }
3350 }
3351
3352 int aac_dev_ioctl(struct aac_dev *dev, unsigned int cmd, void __user *arg)
3353 {
3354         switch (cmd) {
3355         case FSACTL_QUERY_DISK:
3356                 return query_disk(dev, arg);
3357         case FSACTL_DELETE_DISK:
3358                 return delete_disk(dev, arg);
3359         case FSACTL_FORCE_DELETE_DISK:
3360                 return force_delete_disk(dev, arg);
3361         case FSACTL_GET_CONTAINERS:
3362                 return aac_get_containers(dev);
3363         default:
3364                 return -ENOTTY;
3365         }
3366 }
3367
3368 /**
3369  * aac_srb_callback
3370  * @context: the context set in the fib - here it is scsi cmd
3371  * @fibptr: pointer to the fib
3372  *
3373  * Handles the completion of a scsi command to a non dasd device
3374  */
3375 static void aac_srb_callback(void *context, struct fib * fibptr)
3376 {
3377         struct aac_srb_reply *srbreply;
3378         struct scsi_cmnd *scsicmd;
3379
3380         scsicmd = (struct scsi_cmnd *) context;
3381
3382         if (!aac_valid_context(scsicmd, fibptr))
3383                 return;
3384
3385         BUG_ON(fibptr == NULL);
3386
3387         srbreply = (struct aac_srb_reply *) fib_data(fibptr);
3388
3389         scsicmd->sense_buffer[0] = '\0';  /* Initialize sense valid flag to false */
3390
3391         if (fibptr->flags & FIB_CONTEXT_FLAG_FASTRESP) {
3392                 /* fast response */
3393                 srbreply->srb_status = cpu_to_le32(SRB_STATUS_SUCCESS);
3394                 srbreply->scsi_status = cpu_to_le32(SAM_STAT_GOOD);
3395         } else {
3396                 /*
3397                  *      Calculate resid for sg
3398                  */
3399                 scsi_set_resid(scsicmd, scsi_bufflen(scsicmd)
3400                                    - le32_to_cpu(srbreply->data_xfer_length));
3401         }
3402
3403
3404         scsi_dma_unmap(scsicmd);
3405
3406         /* expose physical device if expose_physicald flag is on */
3407         if (scsicmd->cmnd[0] == INQUIRY && !(scsicmd->cmnd[1] & 0x01)
3408           && expose_physicals > 0)
3409                 aac_expose_phy_device(scsicmd);
3410
3411         /*
3412          * First check the fib status
3413          */
3414
3415         if (le32_to_cpu(srbreply->status) != ST_OK) {
3416                 int len;
3417
3418                 pr_warn("aac_srb_callback: srb failed, status = %d\n",
3419                                 le32_to_cpu(srbreply->status));
3420                 len = min_t(u32, le32_to_cpu(srbreply->sense_data_size),
3421                             SCSI_SENSE_BUFFERSIZE);
3422                 scsicmd->result = DID_ERROR << 16 | SAM_STAT_CHECK_CONDITION;
3423                 memcpy(scsicmd->sense_buffer,
3424                                 srbreply->sense_data, len);
3425         }
3426
3427         /*
3428          * Next check the srb status
3429          */
3430         switch ((le32_to_cpu(srbreply->srb_status))&0x3f) {
3431         case SRB_STATUS_ERROR_RECOVERY:
3432         case SRB_STATUS_PENDING:
3433         case SRB_STATUS_SUCCESS:
3434                 scsicmd->result = DID_OK << 16;
3435                 break;
3436         case SRB_STATUS_DATA_OVERRUN:
3437                 switch (scsicmd->cmnd[0]) {
3438                 case  READ_6:
3439                 case  WRITE_6:
3440                 case  READ_10:
3441                 case  WRITE_10:
3442                 case  READ_12:
3443                 case  WRITE_12:
3444                 case  READ_16:
3445                 case  WRITE_16:
3446                         if (le32_to_cpu(srbreply->data_xfer_length)
3447                                                 < scsicmd->underflow)
3448                                 pr_warn("aacraid: SCSI CMD underflow\n");
3449                         else
3450                                 pr_warn("aacraid: SCSI CMD Data Overrun\n");
3451                         scsicmd->result = DID_ERROR << 16;
3452                         break;
3453                 case INQUIRY:
3454                         scsicmd->result = DID_OK << 16;
3455                         break;
3456                 default:
3457                         scsicmd->result = DID_OK << 16;
3458                         break;
3459                 }
3460                 break;
3461         case SRB_STATUS_ABORTED:
3462                 scsicmd->result = DID_ABORT << 16;
3463                 break;
3464         case SRB_STATUS_ABORT_FAILED:
3465                 /*
3466                  * Not sure about this one - but assuming the
3467                  * hba was trying to abort for some reason
3468                  */
3469                 scsicmd->result = DID_ERROR << 16;
3470                 break;
3471         case SRB_STATUS_PARITY_ERROR:
3472                 scsicmd->result = DID_PARITY << 16;
3473                 break;
3474         case SRB_STATUS_NO_DEVICE:
3475         case SRB_STATUS_INVALID_PATH_ID:
3476         case SRB_STATUS_INVALID_TARGET_ID:
3477         case SRB_STATUS_INVALID_LUN:
3478         case SRB_STATUS_SELECTION_TIMEOUT:
3479                 scsicmd->result = DID_NO_CONNECT << 16;
3480                 break;
3481
3482         case SRB_STATUS_COMMAND_TIMEOUT:
3483         case SRB_STATUS_TIMEOUT:
3484                 scsicmd->result = DID_TIME_OUT << 16;
3485                 break;
3486
3487         case SRB_STATUS_BUSY:
3488                 scsicmd->result = DID_BUS_BUSY << 16;
3489                 break;
3490
3491         case SRB_STATUS_BUS_RESET:
3492                 scsicmd->result = DID_RESET << 16;
3493                 break;
3494
3495         case SRB_STATUS_MESSAGE_REJECTED:
3496                 scsicmd->result = DID_ERROR << 16;
3497                 break;
3498         case SRB_STATUS_REQUEST_FLUSHED:
3499         case SRB_STATUS_ERROR:
3500         case SRB_STATUS_INVALID_REQUEST:
3501         case SRB_STATUS_REQUEST_SENSE_FAILED:
3502         case SRB_STATUS_NO_HBA:
3503         case SRB_STATUS_UNEXPECTED_BUS_FREE:
3504         case SRB_STATUS_PHASE_SEQUENCE_FAILURE:
3505         case SRB_STATUS_BAD_SRB_BLOCK_LENGTH:
3506         case SRB_STATUS_DELAYED_RETRY:
3507         case SRB_STATUS_BAD_FUNCTION:
3508         case SRB_STATUS_NOT_STARTED:
3509         case SRB_STATUS_NOT_IN_USE:
3510         case SRB_STATUS_FORCE_ABORT:
3511         case SRB_STATUS_DOMAIN_VALIDATION_FAIL:
3512         default:
3513 #ifdef AAC_DETAILED_STATUS_INFO
3514                 pr_info("aacraid: SRB ERROR(%u) %s scsi cmd 0x%x -scsi status 0x%x\n",
3515                         le32_to_cpu(srbreply->srb_status) & 0x3F,
3516                         aac_get_status_string(
3517                                 le32_to_cpu(srbreply->srb_status) & 0x3F),
3518                         scsicmd->cmnd[0],
3519                         le32_to_cpu(srbreply->scsi_status));
3520 #endif
3521                 /*
3522                  * When the CC bit is SET by the host in ATA pass thru CDB,
3523                  *  driver is supposed to return DID_OK
3524                  *
3525                  * When the CC bit is RESET by the host, driver should
3526                  *  return DID_ERROR
3527                  */
3528                 if ((scsicmd->cmnd[0] == ATA_12)
3529                         || (scsicmd->cmnd[0] == ATA_16)) {
3530
3531                         if (scsicmd->cmnd[2] & (0x01 << 5)) {
3532                                 scsicmd->result = DID_OK << 16;
3533                         } else {
3534                                 scsicmd->result = DID_ERROR << 16;
3535                         }
3536                 } else {
3537                         scsicmd->result = DID_ERROR << 16;
3538                 }
3539                 break;
3540         }
3541         if (le32_to_cpu(srbreply->scsi_status)
3542                         == SAM_STAT_CHECK_CONDITION) {
3543                 int len;
3544
3545                 scsicmd->result |= SAM_STAT_CHECK_CONDITION;
3546                 len = min_t(u32, le32_to_cpu(srbreply->sense_data_size),
3547                             SCSI_SENSE_BUFFERSIZE);
3548 #ifdef AAC_DETAILED_STATUS_INFO
3549                 pr_warn("aac_srb_callback: check condition, status = %d len=%d\n",
3550                                         le32_to_cpu(srbreply->status), len);
3551 #endif
3552                 memcpy(scsicmd->sense_buffer,
3553                                 srbreply->sense_data, len);
3554         }
3555
3556         /*
3557          * OR in the scsi status (already shifted up a bit)
3558          */
3559         scsicmd->result |= le32_to_cpu(srbreply->scsi_status);
3560
3561         aac_fib_complete(fibptr);
3562         aac_scsi_done(scsicmd);
3563 }
3564
3565 static void hba_resp_task_complete(struct aac_dev *dev,
3566                                         struct scsi_cmnd *scsicmd,
3567                                         struct aac_hba_resp *err) {
3568
3569         scsicmd->result = err->status;
3570         /* set residual count */
3571         scsi_set_resid(scsicmd, le32_to_cpu(err->residual_count));
3572
3573         switch (err->status) {
3574         case SAM_STAT_GOOD:
3575                 scsicmd->result |= DID_OK << 16;
3576                 break;
3577         case SAM_STAT_CHECK_CONDITION:
3578         {
3579                 int len;
3580
3581                 len = min_t(u8, err->sense_response_data_len,
3582                         SCSI_SENSE_BUFFERSIZE);
3583                 if (len)
3584                         memcpy(scsicmd->sense_buffer,
3585                                 err->sense_response_buf, len);
3586                 scsicmd->result |= DID_OK << 16;
3587                 break;
3588         }
3589         case SAM_STAT_BUSY:
3590                 scsicmd->result |= DID_BUS_BUSY << 16;
3591                 break;
3592         case SAM_STAT_TASK_ABORTED:
3593                 scsicmd->result |= DID_ABORT << 16;
3594                 break;
3595         case SAM_STAT_RESERVATION_CONFLICT:
3596         case SAM_STAT_TASK_SET_FULL:
3597         default:
3598                 scsicmd->result |= DID_ERROR << 16;
3599                 break;
3600         }
3601 }
3602
3603 static void hba_resp_task_failure(struct aac_dev *dev,
3604                                         struct scsi_cmnd *scsicmd,
3605                                         struct aac_hba_resp *err)
3606 {
3607         switch (err->status) {
3608         case HBA_RESP_STAT_HBAMODE_DISABLED:
3609         {
3610                 u32 bus, cid;
3611
3612                 bus = aac_logical_to_phys(scmd_channel(scsicmd));
3613                 cid = scmd_id(scsicmd);
3614                 if (dev->hba_map[bus][cid].devtype == AAC_DEVTYPE_NATIVE_RAW) {
3615                         dev->hba_map[bus][cid].devtype = AAC_DEVTYPE_ARC_RAW;
3616                         dev->hba_map[bus][cid].rmw_nexus = 0xffffffff;
3617                 }
3618                 scsicmd->result = DID_NO_CONNECT << 16;
3619                 break;
3620         }
3621         case HBA_RESP_STAT_IO_ERROR:
3622         case HBA_RESP_STAT_NO_PATH_TO_DEVICE:
3623                 scsicmd->result = DID_OK << 16 | SAM_STAT_BUSY;
3624                 break;
3625         case HBA_RESP_STAT_IO_ABORTED:
3626                 scsicmd->result = DID_ABORT << 16;
3627                 break;
3628         case HBA_RESP_STAT_INVALID_DEVICE:
3629                 scsicmd->result = DID_NO_CONNECT << 16;
3630                 break;
3631         case HBA_RESP_STAT_UNDERRUN:
3632                 /* UNDERRUN is OK */
3633                 scsicmd->result = DID_OK << 16;
3634                 break;
3635         case HBA_RESP_STAT_OVERRUN:
3636         default:
3637                 scsicmd->result = DID_ERROR << 16;
3638                 break;
3639         }
3640 }
3641
3642 /**
3643  * aac_hba_callback
3644  * @context: the context set in the fib - here it is scsi cmd
3645  * @fibptr: pointer to the fib
3646  *
3647  * Handles the completion of a native HBA scsi command
3648  */
3649 void aac_hba_callback(void *context, struct fib *fibptr)
3650 {
3651         struct aac_dev *dev;
3652         struct scsi_cmnd *scsicmd;
3653
3654         struct aac_hba_resp *err =
3655                         &((struct aac_native_hba *)fibptr->hw_fib_va)->resp.err;
3656
3657         scsicmd = (struct scsi_cmnd *) context;
3658
3659         if (!aac_valid_context(scsicmd, fibptr))
3660                 return;
3661
3662         WARN_ON(fibptr == NULL);
3663         dev = fibptr->dev;
3664
3665         if (!(fibptr->flags & FIB_CONTEXT_FLAG_NATIVE_HBA_TMF))
3666                 scsi_dma_unmap(scsicmd);
3667
3668         if (fibptr->flags & FIB_CONTEXT_FLAG_FASTRESP) {
3669                 /* fast response */
3670                 scsicmd->result = DID_OK << 16;
3671                 goto out;
3672         }
3673
3674         switch (err->service_response) {
3675         case HBA_RESP_SVCRES_TASK_COMPLETE:
3676                 hba_resp_task_complete(dev, scsicmd, err);
3677                 break;
3678         case HBA_RESP_SVCRES_FAILURE:
3679                 hba_resp_task_failure(dev, scsicmd, err);
3680                 break;
3681         case HBA_RESP_SVCRES_TMF_REJECTED:
3682                 scsicmd->result = DID_ERROR << 16;
3683                 break;
3684         case HBA_RESP_SVCRES_TMF_LUN_INVALID:
3685                 scsicmd->result = DID_NO_CONNECT << 16;
3686                 break;
3687         case HBA_RESP_SVCRES_TMF_COMPLETE:
3688         case HBA_RESP_SVCRES_TMF_SUCCEEDED:
3689                 scsicmd->result = DID_OK << 16;
3690                 break;
3691         default:
3692                 scsicmd->result = DID_ERROR << 16;
3693                 break;
3694         }
3695
3696 out:
3697         aac_fib_complete(fibptr);
3698
3699         if (fibptr->flags & FIB_CONTEXT_FLAG_NATIVE_HBA_TMF)
3700                 aac_priv(scsicmd)->sent_command = 1;
3701         else
3702                 aac_scsi_done(scsicmd);
3703 }
3704
3705 /**
3706  * aac_send_srb_fib
3707  * @scsicmd: the scsi command block
3708  *
3709  * This routine will form a FIB and fill in the aac_srb from the
3710  * scsicmd passed in.
3711  */
3712 static int aac_send_srb_fib(struct scsi_cmnd* scsicmd)
3713 {
3714         struct fib* cmd_fibcontext;
3715         struct aac_dev* dev;
3716         int status;
3717
3718         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
3719         if (scmd_id(scsicmd) >= dev->maximum_num_physicals ||
3720                         scsicmd->device->lun > 7) {
3721                 scsicmd->result = DID_NO_CONNECT << 16;
3722                 aac_scsi_done(scsicmd);
3723                 return 0;
3724         }
3725
3726         /*
3727          *      Allocate and initialize a Fib then setup a BlockWrite command
3728          */
3729         cmd_fibcontext = aac_fib_alloc_tag(dev, scsicmd);
3730         aac_priv(scsicmd)->owner = AAC_OWNER_FIRMWARE;
3731         status = aac_adapter_scsi(cmd_fibcontext, scsicmd);
3732
3733         /*
3734          *      Check that the command queued to the controller
3735          */
3736         if (status == -EINPROGRESS)
3737                 return 0;
3738
3739         printk(KERN_WARNING "aac_srb: aac_fib_send failed with status: %d\n", status);
3740         aac_fib_complete(cmd_fibcontext);
3741         aac_fib_free(cmd_fibcontext);
3742
3743         return -1;
3744 }
3745
3746 /**
3747  * aac_send_hba_fib
3748  * @scsicmd: the scsi command block
3749  *
3750  * This routine will form a FIB and fill in the aac_hba_cmd_req from the
3751  * scsicmd passed in.
3752  */
3753 static int aac_send_hba_fib(struct scsi_cmnd *scsicmd)
3754 {
3755         struct fib *cmd_fibcontext;
3756         struct aac_dev *dev;
3757         int status;
3758
3759         dev = shost_priv(scsicmd->device->host);
3760         if (scmd_id(scsicmd) >= dev->maximum_num_physicals ||
3761                         scsicmd->device->lun > AAC_MAX_LUN - 1) {
3762                 scsicmd->result = DID_NO_CONNECT << 16;
3763                 aac_scsi_done(scsicmd);
3764                 return 0;
3765         }
3766
3767         /*
3768          *      Allocate and initialize a Fib then setup a BlockWrite command
3769          */
3770         cmd_fibcontext = aac_fib_alloc_tag(dev, scsicmd);
3771         if (!cmd_fibcontext)
3772                 return -1;
3773
3774         aac_priv(scsicmd)->owner = AAC_OWNER_FIRMWARE;
3775         status = aac_adapter_hba(cmd_fibcontext, scsicmd);
3776
3777         /*
3778          *      Check that the command queued to the controller
3779          */
3780         if (status == -EINPROGRESS)
3781                 return 0;
3782
3783         pr_warn("aac_hba_cmd_req: aac_fib_send failed with status: %d\n",
3784                 status);
3785         aac_fib_complete(cmd_fibcontext);
3786         aac_fib_free(cmd_fibcontext);
3787
3788         return -1;
3789 }
3790
3791
3792 static long aac_build_sg(struct scsi_cmnd *scsicmd, struct sgmap *psg)
3793 {
3794         unsigned long byte_count = 0;
3795         int nseg;
3796         struct scatterlist *sg;
3797         int i;
3798
3799         // Get rid of old data
3800         psg->count = 0;
3801         psg->sg[0].addr = 0;
3802         psg->sg[0].count = 0;
3803
3804         nseg = scsi_dma_map(scsicmd);
3805         if (nseg <= 0)
3806                 return nseg;
3807
3808         psg->count = cpu_to_le32(nseg);
3809
3810         scsi_for_each_sg(scsicmd, sg, nseg, i) {
3811                 psg->sg[i].addr = cpu_to_le32(sg_dma_address(sg));
3812                 psg->sg[i].count = cpu_to_le32(sg_dma_len(sg));
3813                 byte_count += sg_dma_len(sg);
3814         }
3815         /* hba wants the size to be exact */
3816         if (byte_count > scsi_bufflen(scsicmd)) {
3817                 u32 temp = le32_to_cpu(psg->sg[i-1].count) -
3818                         (byte_count - scsi_bufflen(scsicmd));
3819                 psg->sg[i-1].count = cpu_to_le32(temp);
3820                 byte_count = scsi_bufflen(scsicmd);
3821         }
3822         /* Check for command underflow */
3823         if (scsicmd->underflow && (byte_count < scsicmd->underflow)) {
3824                 printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
3825                        byte_count, scsicmd->underflow);
3826         }
3827
3828         return byte_count;
3829 }
3830
3831
3832 static long aac_build_sg64(struct scsi_cmnd *scsicmd, struct sgmap64 *psg)
3833 {
3834         unsigned long byte_count = 0;
3835         u64 addr;
3836         int nseg;
3837         struct scatterlist *sg;
3838         int i;
3839
3840         // Get rid of old data
3841         psg->count = 0;
3842         psg->sg[0].addr[0] = 0;
3843         psg->sg[0].addr[1] = 0;
3844         psg->sg[0].count = 0;
3845
3846         nseg = scsi_dma_map(scsicmd);
3847         if (nseg <= 0)
3848                 return nseg;
3849
3850         scsi_for_each_sg(scsicmd, sg, nseg, i) {
3851                 int count = sg_dma_len(sg);
3852                 addr = sg_dma_address(sg);
3853                 psg->sg[i].addr[0] = cpu_to_le32(addr & 0xffffffff);
3854                 psg->sg[i].addr[1] = cpu_to_le32(addr>>32);
3855                 psg->sg[i].count = cpu_to_le32(count);
3856                 byte_count += count;
3857         }
3858         psg->count = cpu_to_le32(nseg);
3859         /* hba wants the size to be exact */
3860         if (byte_count > scsi_bufflen(scsicmd)) {
3861                 u32 temp = le32_to_cpu(psg->sg[i-1].count) -
3862                         (byte_count - scsi_bufflen(scsicmd));
3863                 psg->sg[i-1].count = cpu_to_le32(temp);
3864                 byte_count = scsi_bufflen(scsicmd);
3865         }
3866         /* Check for command underflow */
3867         if (scsicmd->underflow && (byte_count < scsicmd->underflow)) {
3868                 printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
3869                        byte_count, scsicmd->underflow);
3870         }
3871
3872         return byte_count;
3873 }
3874
3875 static long aac_build_sgraw(struct scsi_cmnd *scsicmd, struct sgmapraw *psg)
3876 {
3877         unsigned long byte_count = 0;
3878         int nseg;
3879         struct scatterlist *sg;
3880         int i;
3881
3882         // Get rid of old data
3883         psg->count = 0;
3884         psg->sg[0].next = 0;
3885         psg->sg[0].prev = 0;
3886         psg->sg[0].addr[0] = 0;
3887         psg->sg[0].addr[1] = 0;
3888         psg->sg[0].count = 0;
3889         psg->sg[0].flags = 0;
3890
3891         nseg = scsi_dma_map(scsicmd);
3892         if (nseg <= 0)
3893                 return nseg;
3894
3895         scsi_for_each_sg(scsicmd, sg, nseg, i) {
3896                 int count = sg_dma_len(sg);
3897                 u64 addr = sg_dma_address(sg);
3898                 psg->sg[i].next = 0;
3899                 psg->sg[i].prev = 0;
3900                 psg->sg[i].addr[1] = cpu_to_le32((u32)(addr>>32));
3901                 psg->sg[i].addr[0] = cpu_to_le32((u32)(addr & 0xffffffff));
3902                 psg->sg[i].count = cpu_to_le32(count);
3903                 psg->sg[i].flags = 0;
3904                 byte_count += count;
3905         }
3906         psg->count = cpu_to_le32(nseg);
3907         /* hba wants the size to be exact */
3908         if (byte_count > scsi_bufflen(scsicmd)) {
3909                 u32 temp = le32_to_cpu(psg->sg[i-1].count) -
3910                         (byte_count - scsi_bufflen(scsicmd));
3911                 psg->sg[i-1].count = cpu_to_le32(temp);
3912                 byte_count = scsi_bufflen(scsicmd);
3913         }
3914         /* Check for command underflow */
3915         if (scsicmd->underflow && (byte_count < scsicmd->underflow)) {
3916                 printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
3917                        byte_count, scsicmd->underflow);
3918         }
3919
3920         return byte_count;
3921 }
3922
3923 static long aac_build_sgraw2(struct scsi_cmnd *scsicmd,
3924                                 struct aac_raw_io2 *rio2, int sg_max)
3925 {
3926         unsigned long byte_count = 0;
3927         int nseg;
3928         struct scatterlist *sg;
3929         int i, conformable = 0;
3930         u32 min_size = PAGE_SIZE, cur_size;
3931
3932         nseg = scsi_dma_map(scsicmd);
3933         if (nseg <= 0)
3934                 return nseg;
3935
3936         scsi_for_each_sg(scsicmd, sg, nseg, i) {
3937                 int count = sg_dma_len(sg);
3938                 u64 addr = sg_dma_address(sg);
3939
3940                 BUG_ON(i >= sg_max);
3941                 rio2->sge[i].addrHigh = cpu_to_le32((u32)(addr>>32));
3942                 rio2->sge[i].addrLow = cpu_to_le32((u32)(addr & 0xffffffff));
3943                 cur_size = cpu_to_le32(count);
3944                 rio2->sge[i].length = cur_size;
3945                 rio2->sge[i].flags = 0;
3946                 if (i == 0) {
3947                         conformable = 1;
3948                         rio2->sgeFirstSize = cur_size;
3949                 } else if (i == 1) {
3950                         rio2->sgeNominalSize = cur_size;
3951                         min_size = cur_size;
3952                 } else if ((i+1) < nseg && cur_size != rio2->sgeNominalSize) {
3953                         conformable = 0;
3954                         if (cur_size < min_size)
3955                                 min_size = cur_size;
3956                 }
3957                 byte_count += count;
3958         }
3959
3960         /* hba wants the size to be exact */
3961         if (byte_count > scsi_bufflen(scsicmd)) {
3962                 u32 temp = le32_to_cpu(rio2->sge[i-1].length) -
3963                         (byte_count - scsi_bufflen(scsicmd));
3964                 rio2->sge[i-1].length = cpu_to_le32(temp);
3965                 byte_count = scsi_bufflen(scsicmd);
3966         }
3967
3968         rio2->sgeCnt = cpu_to_le32(nseg);
3969         rio2->flags |= cpu_to_le16(RIO2_SG_FORMAT_IEEE1212);
3970         /* not conformable: evaluate required sg elements */
3971         if (!conformable) {
3972                 int j, nseg_new = nseg, err_found;
3973                 for (i = min_size / PAGE_SIZE; i >= 1; --i) {
3974                         err_found = 0;
3975                         nseg_new = 2;
3976                         for (j = 1; j < nseg - 1; ++j) {
3977                                 if (rio2->sge[j].length % (i*PAGE_SIZE)) {
3978                                         err_found = 1;
3979                                         break;
3980                                 }
3981                                 nseg_new += (rio2->sge[j].length / (i*PAGE_SIZE));
3982                         }
3983                         if (!err_found)
3984                                 break;
3985                 }
3986                 if (i > 0 && nseg_new <= sg_max) {
3987                         int ret = aac_convert_sgraw2(rio2, i, nseg, nseg_new);
3988
3989                         if (ret < 0)
3990                                 return ret;
3991                 }
3992         } else
3993                 rio2->flags |= cpu_to_le16(RIO2_SGL_CONFORMANT);
3994
3995         /* Check for command underflow */
3996         if (scsicmd->underflow && (byte_count < scsicmd->underflow)) {
3997                 printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
3998                        byte_count, scsicmd->underflow);
3999         }
4000
4001         return byte_count;
4002 }
4003
4004 static int aac_convert_sgraw2(struct aac_raw_io2 *rio2, int pages, int nseg, int nseg_new)
4005 {
4006         struct sge_ieee1212 *sge;
4007         int i, j, pos;
4008         u32 addr_low;
4009
4010         if (aac_convert_sgl == 0)
4011                 return 0;
4012
4013         sge = kmalloc_array(nseg_new, sizeof(*sge), GFP_ATOMIC);
4014         if (sge == NULL)
4015                 return -ENOMEM;
4016
4017         for (i = 1, pos = 1; i < nseg-1; ++i) {
4018                 for (j = 0; j < rio2->sge[i].length / (pages * PAGE_SIZE); ++j) {
4019                         addr_low = rio2->sge[i].addrLow + j * pages * PAGE_SIZE;
4020                         sge[pos].addrLow = addr_low;
4021                         sge[pos].addrHigh = rio2->sge[i].addrHigh;
4022                         if (addr_low < rio2->sge[i].addrLow)
4023                                 sge[pos].addrHigh++;
4024                         sge[pos].length = pages * PAGE_SIZE;
4025                         sge[pos].flags = 0;
4026                         pos++;
4027                 }
4028         }
4029         sge[pos] = rio2->sge[nseg-1];
4030         memcpy(&rio2->sge[1], &sge[1], (nseg_new-1)*sizeof(struct sge_ieee1212));
4031
4032         kfree(sge);
4033         rio2->sgeCnt = cpu_to_le32(nseg_new);
4034         rio2->flags |= cpu_to_le16(RIO2_SGL_CONFORMANT);
4035         rio2->sgeNominalSize = pages * PAGE_SIZE;
4036         return 0;
4037 }
4038
4039 static long aac_build_sghba(struct scsi_cmnd *scsicmd,
4040                         struct aac_hba_cmd_req *hbacmd,
4041                         int sg_max,
4042                         u64 sg_address)
4043 {
4044         unsigned long byte_count = 0;
4045         int nseg;
4046         struct scatterlist *sg;
4047         int i;
4048         u32 cur_size;
4049         struct aac_hba_sgl *sge;
4050
4051         nseg = scsi_dma_map(scsicmd);
4052         if (nseg <= 0) {
4053                 byte_count = nseg;
4054                 goto out;
4055         }
4056
4057         if (nseg > HBA_MAX_SG_EMBEDDED)
4058                 sge = &hbacmd->sge[2];
4059         else
4060                 sge = &hbacmd->sge[0];
4061
4062         scsi_for_each_sg(scsicmd, sg, nseg, i) {
4063                 int count = sg_dma_len(sg);
4064                 u64 addr = sg_dma_address(sg);
4065
4066                 WARN_ON(i >= sg_max);
4067                 sge->addr_hi = cpu_to_le32((u32)(addr>>32));
4068                 sge->addr_lo = cpu_to_le32((u32)(addr & 0xffffffff));
4069                 cur_size = cpu_to_le32(count);
4070                 sge->len = cur_size;
4071                 sge->flags = 0;
4072                 byte_count += count;
4073                 sge++;
4074         }
4075
4076         sge--;
4077         /* hba wants the size to be exact */
4078         if (byte_count > scsi_bufflen(scsicmd)) {
4079                 u32 temp;
4080
4081                 temp = le32_to_cpu(sge->len) - byte_count
4082                                                 - scsi_bufflen(scsicmd);
4083                 sge->len = cpu_to_le32(temp);
4084                 byte_count = scsi_bufflen(scsicmd);
4085         }
4086
4087         if (nseg <= HBA_MAX_SG_EMBEDDED) {
4088                 hbacmd->emb_data_desc_count = cpu_to_le32(nseg);
4089                 sge->flags = cpu_to_le32(0x40000000);
4090         } else {
4091                 /* not embedded */
4092                 hbacmd->sge[0].flags = cpu_to_le32(0x80000000);
4093                 hbacmd->emb_data_desc_count = (u8)cpu_to_le32(1);
4094                 hbacmd->sge[0].addr_hi = (u32)cpu_to_le32(sg_address >> 32);
4095                 hbacmd->sge[0].addr_lo =
4096                         cpu_to_le32((u32)(sg_address & 0xffffffff));
4097         }
4098
4099         /* Check for command underflow */
4100         if (scsicmd->underflow && (byte_count < scsicmd->underflow)) {
4101                 pr_warn("aacraid: cmd len %08lX cmd underflow %08X\n",
4102                                 byte_count, scsicmd->underflow);
4103         }
4104 out:
4105         return byte_count;
4106 }
4107
4108 #ifdef AAC_DETAILED_STATUS_INFO
4109
4110 struct aac_srb_status_info {
4111         u32     status;
4112         char    *str;
4113 };
4114
4115
4116 static struct aac_srb_status_info srb_status_info[] = {
4117         { SRB_STATUS_PENDING,           "Pending Status"},
4118         { SRB_STATUS_SUCCESS,           "Success"},
4119         { SRB_STATUS_ABORTED,           "Aborted Command"},
4120         { SRB_STATUS_ABORT_FAILED,      "Abort Failed"},
4121         { SRB_STATUS_ERROR,             "Error Event"},
4122         { SRB_STATUS_BUSY,              "Device Busy"},
4123         { SRB_STATUS_INVALID_REQUEST,   "Invalid Request"},
4124         { SRB_STATUS_INVALID_PATH_ID,   "Invalid Path ID"},
4125         { SRB_STATUS_NO_DEVICE,         "No Device"},
4126         { SRB_STATUS_TIMEOUT,           "Timeout"},
4127         { SRB_STATUS_SELECTION_TIMEOUT, "Selection Timeout"},
4128         { SRB_STATUS_COMMAND_TIMEOUT,   "Command Timeout"},
4129         { SRB_STATUS_MESSAGE_REJECTED,  "Message Rejected"},
4130         { SRB_STATUS_BUS_RESET,         "Bus Reset"},
4131         { SRB_STATUS_PARITY_ERROR,      "Parity Error"},
4132         { SRB_STATUS_REQUEST_SENSE_FAILED,"Request Sense Failed"},
4133         { SRB_STATUS_NO_HBA,            "No HBA"},
4134         { SRB_STATUS_DATA_OVERRUN,      "Data Overrun/Data Underrun"},
4135         { SRB_STATUS_UNEXPECTED_BUS_FREE,"Unexpected Bus Free"},
4136         { SRB_STATUS_PHASE_SEQUENCE_FAILURE,"Phase Error"},
4137         { SRB_STATUS_BAD_SRB_BLOCK_LENGTH,"Bad Srb Block Length"},
4138         { SRB_STATUS_REQUEST_FLUSHED,   "Request Flushed"},
4139         { SRB_STATUS_DELAYED_RETRY,     "Delayed Retry"},
4140         { SRB_STATUS_INVALID_LUN,       "Invalid LUN"},
4141         { SRB_STATUS_INVALID_TARGET_ID, "Invalid TARGET ID"},
4142         { SRB_STATUS_BAD_FUNCTION,      "Bad Function"},
4143         { SRB_STATUS_ERROR_RECOVERY,    "Error Recovery"},
4144         { SRB_STATUS_NOT_STARTED,       "Not Started"},
4145         { SRB_STATUS_NOT_IN_USE,        "Not In Use"},
4146         { SRB_STATUS_FORCE_ABORT,       "Force Abort"},
4147         { SRB_STATUS_DOMAIN_VALIDATION_FAIL,"Domain Validation Failure"},
4148         { 0xff,                         "Unknown Error"}
4149 };
4150
4151 char *aac_get_status_string(u32 status)
4152 {
4153         int i;
4154
4155         for (i = 0; i < ARRAY_SIZE(srb_status_info); i++)
4156                 if (srb_status_info[i].status == status)
4157                         return srb_status_info[i].str;
4158
4159         return "Bad Status Code";
4160 }
4161
4162 #endif