git.oblomov.eu Git - linux-2.6/blob - drivers/scsi/qla2xxx/qla_os.c

   1 /*
   2  * QLogic Fibre Channel HBA Driver
   3  * Copyright (c)  2003-2005 QLogic Corporation
   4  *
   5  * See LICENSE.qla2xxx for copyright and licensing details.
   6  */
   7 #include "qla_def.h"
   8
   9 #include <linux/moduleparam.h>
  10 #include <linux/vmalloc.h>
  11 #include <linux/delay.h>
  12 #include <linux/kthread.h>
  13
  14 #include <scsi/scsi_tcq.h>
  15 #include <scsi/scsicam.h>
  16 #include <scsi/scsi_transport.h>
  17 #include <scsi/scsi_transport_fc.h>
  18
  19 /*
  20  * Driver version
  21  */
  22 char qla2x00_version_str[40];
  23
  24 /*
  25  * SRB allocation cache
  26  */
  27 static struct kmem_cache *srb_cachep;
  28
  29 /*
  30  * Ioctl related information.
  31  */
  32 int num_hosts;
  33 int ql2xlogintimeout = 20;
  34 module_param(ql2xlogintimeout, int, S_IRUGO|S_IRUSR);
  35 MODULE_PARM_DESC(ql2xlogintimeout,
  36                 "Login timeout value in seconds.");
  37
  38 int qlport_down_retry;
  39 module_param(qlport_down_retry, int, S_IRUGO|S_IRUSR);
  40 MODULE_PARM_DESC(qlport_down_retry,
  41                 "Maximum number of command retries to a port that returns "
  42                 "a PORT-DOWN status.");
  43
  44 int ql2xplogiabsentdevice;
  45 module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
  46 MODULE_PARM_DESC(ql2xplogiabsentdevice,
  47                 "Option to enable PLOGI to devices that are not present after "
  48                 "a Fabric scan.  This is needed for several broken switches. "
  49                 "Default is 0 - no PLOGI. 1 - perfom PLOGI.");
  50
  51 int ql2xloginretrycount = 0;
  52 module_param(ql2xloginretrycount, int, S_IRUGO|S_IRUSR);
  53 MODULE_PARM_DESC(ql2xloginretrycount,
  54                 "Specify an alternate value for the NVRAM login retry count.");
  55
  56 int ql2xallocfwdump = 1;
  57 module_param(ql2xallocfwdump, int, S_IRUGO|S_IRUSR);
  58 MODULE_PARM_DESC(ql2xallocfwdump,
  59                 "Option to enable allocation of memory for a firmware dump "
  60                 "during HBA initialization.  Memory allocation requirements "
  61                 "vary by ISP type.  Default is 1 - allocate memory.");
  62
  63 int ql2xextended_error_logging;
  64 module_param(ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
  65 MODULE_PARM_DESC(ql2xextended_error_logging,
  66                 "Option to enable extended error logging, "
  67                 "Default is 0 - no logging. 1 - log errors.");
  68
  69 static void qla2x00_free_device(scsi_qla_host_t *);
  70
  71 static void qla2x00_config_dma_addressing(scsi_qla_host_t *ha);
  72
  73 int ql2xfdmienable;
  74 module_param(ql2xfdmienable, int, S_IRUGO|S_IRUSR);
  75 MODULE_PARM_DESC(ql2xfdmienable,
  76                 "Enables FDMI registratons "
  77                 "Default is 0 - no FDMI. 1 - perfom FDMI.");
  78
  79 #define MAX_Q_DEPTH    32
  80 static int ql2xmaxqdepth = MAX_Q_DEPTH;
  81 module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
  82 MODULE_PARM_DESC(ql2xmaxqdepth,
  83                 "Maximum queue depth to report for target devices.");
  84
  85 int ql2xqfullrampup = 120;
  86 module_param(ql2xqfullrampup, int, S_IRUGO|S_IWUSR);
  87 MODULE_PARM_DESC(ql2xqfullrampup,
  88                 "Number of seconds to wait to begin to ramp-up the queue "
  89                 "depth for a device after a queue-full condition has been "
  90                 "detected.  Default is 120 seconds.");
  91
  92 /*
  93  * SCSI host template entry points
  94  */
  95 static int qla2xxx_slave_configure(struct scsi_device * device);
  96 static int qla2xxx_slave_alloc(struct scsi_device *);
  97 static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
  98 static void qla2xxx_scan_start(struct Scsi_Host *);
  99 static void qla2xxx_slave_destroy(struct scsi_device *);
 100 static int qla2x00_queuecommand(struct scsi_cmnd *cmd,
 101                 void (*fn)(struct scsi_cmnd *));
 102 static int qla24xx_queuecommand(struct scsi_cmnd *cmd,
 103                 void (*fn)(struct scsi_cmnd *));
 104 static int qla2xxx_eh_abort(struct scsi_cmnd *);
 105 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
 106 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
 107 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
 108 static int qla2x00_loop_reset(scsi_qla_host_t *ha);
 109 static int qla2x00_device_reset(scsi_qla_host_t *, fc_port_t *);
 110
 111 static int qla2x00_change_queue_depth(struct scsi_device *, int);
 112 static int qla2x00_change_queue_type(struct scsi_device *, int);
 113
 114 struct scsi_host_template qla2x00_driver_template = {
 115         .module                 = THIS_MODULE,
 116         .name                   = QLA2XXX_DRIVER_NAME,
 117         .queuecommand           = qla2x00_queuecommand,
 118
 119         .eh_abort_handler       = qla2xxx_eh_abort,
 120         .eh_device_reset_handler = qla2xxx_eh_device_reset,
 121         .eh_bus_reset_handler   = qla2xxx_eh_bus_reset,
 122         .eh_host_reset_handler  = qla2xxx_eh_host_reset,
 123
 124         .slave_configure        = qla2xxx_slave_configure,
 125
 126         .slave_alloc            = qla2xxx_slave_alloc,
 127         .slave_destroy          = qla2xxx_slave_destroy,
 128         .scan_finished          = qla2xxx_scan_finished,
 129         .scan_start             = qla2xxx_scan_start,
 130         .change_queue_depth     = qla2x00_change_queue_depth,
 131         .change_queue_type      = qla2x00_change_queue_type,
 132         .this_id                = -1,
 133         .cmd_per_lun            = 3,
 134         .use_clustering         = ENABLE_CLUSTERING,
 135         .use_sg_chaining        = ENABLE_SG_CHAINING,
 136         .sg_tablesize           = SG_ALL,
 137
 138         /*
 139          * The RISC allows for each command to transfer (2^32-1) bytes of data,
 140          * which equates to 0x800000 sectors.
 141          */
 142         .max_sectors            = 0xFFFF,
 143         .shost_attrs            = qla2x00_host_attrs,
 144 };
 145
 146 struct scsi_host_template qla24xx_driver_template = {
 147         .module                 = THIS_MODULE,
 148         .name                   = QLA2XXX_DRIVER_NAME,
 149         .queuecommand           = qla24xx_queuecommand,
 150
 151         .eh_abort_handler       = qla2xxx_eh_abort,
 152         .eh_device_reset_handler = qla2xxx_eh_device_reset,
 153         .eh_bus_reset_handler   = qla2xxx_eh_bus_reset,
 154         .eh_host_reset_handler  = qla2xxx_eh_host_reset,
 155
 156         .slave_configure        = qla2xxx_slave_configure,
 157
 158         .slave_alloc            = qla2xxx_slave_alloc,
 159         .slave_destroy          = qla2xxx_slave_destroy,
 160         .scan_finished          = qla2xxx_scan_finished,
 161         .scan_start             = qla2xxx_scan_start,
 162         .change_queue_depth     = qla2x00_change_queue_depth,
 163         .change_queue_type      = qla2x00_change_queue_type,
 164         .this_id                = -1,
 165         .cmd_per_lun            = 3,
 166         .use_clustering         = ENABLE_CLUSTERING,
 167         .use_sg_chaining        = ENABLE_SG_CHAINING,
 168         .sg_tablesize           = SG_ALL,
 169
 170         .max_sectors            = 0xFFFF,
 171         .shost_attrs            = qla2x00_host_attrs,
 172 };
 173
 174 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
 175 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
 176
 177 /* TODO Convert to inlines
 178  *
 179  * Timer routines
 180  */
 181
 182 void qla2x00_timer(scsi_qla_host_t *);
 183
 184 __inline__ void qla2x00_start_timer(scsi_qla_host_t *,
 185     void *, unsigned long);
 186 static __inline__ void qla2x00_restart_timer(scsi_qla_host_t *, unsigned long);
 187 __inline__ void qla2x00_stop_timer(scsi_qla_host_t *);
 188
 189 __inline__ void
 190 qla2x00_start_timer(scsi_qla_host_t *ha, void *func, unsigned long interval)
 191 {
 192         init_timer(&ha->timer);
 193         ha->timer.expires = jiffies + interval * HZ;
 194         ha->timer.data = (unsigned long)ha;
 195         ha->timer.function = (void (*)(unsigned long))func;
 196         add_timer(&ha->timer);
 197         ha->timer_active = 1;
 198 }
 199
 200 static inline void
 201 qla2x00_restart_timer(scsi_qla_host_t *ha, unsigned long interval)
 202 {
 203         mod_timer(&ha->timer, jiffies + interval * HZ);
 204 }
 205
 206 __inline__ void
 207 qla2x00_stop_timer(scsi_qla_host_t *ha)
 208 {
 209         del_timer_sync(&ha->timer);
 210         ha->timer_active = 0;
 211 }
 212
 213 static int qla2x00_do_dpc(void *data);
 214
 215 static void qla2x00_rst_aen(scsi_qla_host_t *);
 216
 217 uint8_t qla2x00_mem_alloc(scsi_qla_host_t *);
 218 void qla2x00_mem_free(scsi_qla_host_t *ha);
 219 static int qla2x00_allocate_sp_pool( scsi_qla_host_t *ha);
 220 static void qla2x00_free_sp_pool(scsi_qla_host_t *ha);
 221 static void qla2x00_sp_free_dma(scsi_qla_host_t *, srb_t *);
 222 void qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *);
 223
 224 /* -------------------------------------------------------------------------- */
 225
 226 static char *
 227 qla2x00_pci_info_str(struct scsi_qla_host *ha, char *str)
 228 {
 229         static char *pci_bus_modes[] = {
 230                 "33", "66", "100", "133",
 231         };
 232         uint16_t pci_bus;
 233
 234         strcpy(str, "PCI");
 235         pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
 236         if (pci_bus) {
 237                 strcat(str, "-X (");
 238                 strcat(str, pci_bus_modes[pci_bus]);
 239         } else {
 240                 pci_bus = (ha->pci_attr & BIT_8) >> 8;
 241                 strcat(str, " (");
 242                 strcat(str, pci_bus_modes[pci_bus]);
 243         }
 244         strcat(str, " MHz)");
 245
 246         return (str);
 247 }
 248
 249 static char *
 250 qla24xx_pci_info_str(struct scsi_qla_host *ha, char *str)
 251 {
 252         static char *pci_bus_modes[] = { "33", "66", "100", "133", };
 253         uint32_t pci_bus;
 254         int pcie_reg;
 255
 256         pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
 257         if (pcie_reg) {
 258                 char lwstr[6];
 259                 uint16_t pcie_lstat, lspeed, lwidth;
 260
 261                 pcie_reg += 0x12;
 262                 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
 263                 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
 264                 lwidth = (pcie_lstat &
 265                     (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
 266
 267                 strcpy(str, "PCIe (");
 268                 if (lspeed == 1)
 269                         strcat(str, "2.5Gb/s ");
 270                 else if (lspeed == 2)
 271                         strcat(str, "5.0Gb/s ");
 272                 else
 273                         strcat(str, "<unknown> ");
 274                 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
 275                 strcat(str, lwstr);
 276
 277                 return str;
 278         }
 279
 280         strcpy(str, "PCI");
 281         pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
 282         if (pci_bus == 0 || pci_bus == 8) {
 283                 strcat(str, " (");
 284                 strcat(str, pci_bus_modes[pci_bus >> 3]);
 285         } else {
 286                 strcat(str, "-X ");
 287                 if (pci_bus & BIT_2)
 288                         strcat(str, "Mode 2");
 289                 else
 290                         strcat(str, "Mode 1");
 291                 strcat(str, " (");
 292                 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
 293         }
 294         strcat(str, " MHz)");
 295
 296         return str;
 297 }
 298
 299 static char *
 300 qla2x00_fw_version_str(struct scsi_qla_host *ha, char *str)
 301 {
 302         char un_str[10];
 303
 304         sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
 305             ha->fw_minor_version,
 306             ha->fw_subminor_version);
 307
 308         if (ha->fw_attributes & BIT_9) {
 309                 strcat(str, "FLX");
 310                 return (str);
 311         }
 312
 313         switch (ha->fw_attributes & 0xFF) {
 314         case 0x7:
 315                 strcat(str, "EF");
 316                 break;
 317         case 0x17:
 318                 strcat(str, "TP");
 319                 break;
 320         case 0x37:
 321                 strcat(str, "IP");
 322                 break;
 323         case 0x77:
 324                 strcat(str, "VI");
 325                 break;
 326         default:
 327                 sprintf(un_str, "(%x)", ha->fw_attributes);
 328                 strcat(str, un_str);
 329                 break;
 330         }
 331         if (ha->fw_attributes & 0x100)
 332                 strcat(str, "X");
 333
 334         return (str);
 335 }
 336
 337 static char *
 338 qla24xx_fw_version_str(struct scsi_qla_host *ha, char *str)
 339 {
 340         sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
 341             ha->fw_minor_version,
 342             ha->fw_subminor_version);
 343
 344         if (ha->fw_attributes & BIT_0)
 345                 strcat(str, "[Class 2] ");
 346         if (ha->fw_attributes & BIT_1)
 347                 strcat(str, "[IP] ");
 348         if (ha->fw_attributes & BIT_2)
 349                 strcat(str, "[Multi-ID] ");
 350         if (ha->fw_attributes & BIT_3)
 351                 strcat(str, "[SB-2] ");
 352         if (ha->fw_attributes & BIT_4)
 353                 strcat(str, "[T10 CRC] ");
 354         if (ha->fw_attributes & BIT_5)
 355                 strcat(str, "[VI] ");
 356         if (ha->fw_attributes & BIT_13)
 357                 strcat(str, "[Experimental]");
 358         return str;
 359 }
 360
 361 static inline srb_t *
 362 qla2x00_get_new_sp(scsi_qla_host_t *ha, fc_port_t *fcport,
 363     struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 364 {
 365         srb_t *sp;
 366
 367         sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
 368         if (!sp)
 369                 return sp;
 370
 371         sp->ha = ha;
 372         sp->fcport = fcport;
 373         sp->cmd = cmd;
 374         sp->flags = 0;
 375         CMD_SP(cmd) = (void *)sp;
 376         cmd->scsi_done = done;
 377
 378         return sp;
 379 }
 380
 381 static int
 382 qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 383 {
 384         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
 385         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 386         struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
 387         srb_t *sp;
 388         int rval;
 389
 390         if (unlikely(pci_channel_offline(ha->pdev))) {
 391                 cmd->result = DID_REQUEUE << 16;
 392                 goto qc_fail_command;
 393         }
 394
 395         rval = fc_remote_port_chkready(rport);
 396         if (rval) {
 397                 cmd->result = rval;
 398                 goto qc_fail_command;
 399         }
 400
 401         /* Close window on fcport/rport state-transitioning. */
 402         if (!*(fc_port_t **)rport->dd_data) {
 403                 cmd->result = DID_IMM_RETRY << 16;
 404                 goto qc_fail_command;
 405         }
 406
 407         if (atomic_read(&fcport->state) != FCS_ONLINE) {
 408                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
 409                     atomic_read(&ha->loop_state) == LOOP_DEAD) {
 410                         cmd->result = DID_NO_CONNECT << 16;
 411                         goto qc_fail_command;
 412                 }
 413                 goto qc_host_busy;
 414         }
 415
 416         spin_unlock_irq(ha->host->host_lock);
 417
 418         sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
 419         if (!sp)
 420                 goto qc_host_busy_lock;
 421
 422         rval = qla2x00_start_scsi(sp);
 423         if (rval != QLA_SUCCESS)
 424                 goto qc_host_busy_free_sp;
 425
 426         spin_lock_irq(ha->host->host_lock);
 427
 428         return 0;
 429
 430 qc_host_busy_free_sp:
 431         qla2x00_sp_free_dma(ha, sp);
 432         mempool_free(sp, ha->srb_mempool);
 433
 434 qc_host_busy_lock:
 435         spin_lock_irq(ha->host->host_lock);
 436
 437 qc_host_busy:
 438         return SCSI_MLQUEUE_HOST_BUSY;
 439
 440 qc_fail_command:
 441         done(cmd);
 442
 443         return 0;
 444 }
 445
 446
 447 static int
 448 qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 449 {
 450         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
 451         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 452         struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
 453         srb_t *sp;
 454         int rval;
 455         scsi_qla_host_t *pha = to_qla_parent(ha);
 456
 457         if (unlikely(pci_channel_offline(ha->pdev))) {
 458                 cmd->result = DID_REQUEUE << 16;
 459                 goto qc24_fail_command;
 460         }
 461
 462         rval = fc_remote_port_chkready(rport);
 463         if (rval) {
 464                 cmd->result = rval;
 465                 goto qc24_fail_command;
 466         }
 467
 468         /* Close window on fcport/rport state-transitioning. */
 469         if (!*(fc_port_t **)rport->dd_data) {
 470                 cmd->result = DID_IMM_RETRY << 16;
 471                 goto qc24_fail_command;
 472         }
 473
 474         if (atomic_read(&fcport->state) != FCS_ONLINE) {
 475                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
 476                     atomic_read(&pha->loop_state) == LOOP_DEAD) {
 477                         cmd->result = DID_NO_CONNECT << 16;
 478                         goto qc24_fail_command;
 479                 }
 480                 goto qc24_host_busy;
 481         }
 482
 483         spin_unlock_irq(ha->host->host_lock);
 484
 485         sp = qla2x00_get_new_sp(pha, fcport, cmd, done);
 486         if (!sp)
 487                 goto qc24_host_busy_lock;
 488
 489         rval = qla24xx_start_scsi(sp);
 490         if (rval != QLA_SUCCESS)
 491                 goto qc24_host_busy_free_sp;
 492
 493         spin_lock_irq(ha->host->host_lock);
 494
 495         return 0;
 496
 497 qc24_host_busy_free_sp:
 498         qla2x00_sp_free_dma(pha, sp);
 499         mempool_free(sp, pha->srb_mempool);
 500
 501 qc24_host_busy_lock:
 502         spin_lock_irq(ha->host->host_lock);
 503
 504 qc24_host_busy:
 505         return SCSI_MLQUEUE_HOST_BUSY;
 506
 507 qc24_fail_command:
 508         done(cmd);
 509
 510         return 0;
 511 }
 512
 513
 514 /*
 515  * qla2x00_eh_wait_on_command
 516  *    Waits for the command to be returned by the Firmware for some
 517  *    max time.
 518  *
 519  * Input:
 520  *    ha = actual ha whose done queue will contain the command
 521  *            returned by firmware.
 522  *    cmd = Scsi Command to wait on.
 523  *    flag = Abort/Reset(Bus or Device Reset)
 524  *
 525  * Return:
 526  *    Not Found : 0
 527  *    Found : 1
 528  */
 529 static int
 530 qla2x00_eh_wait_on_command(scsi_qla_host_t *ha, struct scsi_cmnd *cmd)
 531 {
 532 #define ABORT_POLLING_PERIOD    1000
 533 #define ABORT_WAIT_ITER         ((10 * 1000) / (ABORT_POLLING_PERIOD))
 534         unsigned long wait_iter = ABORT_WAIT_ITER;
 535         int ret = QLA_SUCCESS;
 536
 537         while (CMD_SP(cmd)) {
 538                 msleep(ABORT_POLLING_PERIOD);
 539
 540                 if (--wait_iter)
 541                         break;
 542         }
 543         if (CMD_SP(cmd))
 544                 ret = QLA_FUNCTION_FAILED;
 545
 546         return ret;
 547 }
 548
 549 /*
 550  * qla2x00_wait_for_hba_online
 551  *    Wait till the HBA is online after going through
 552  *    <= MAX_RETRIES_OF_ISP_ABORT  or
 553  *    finally HBA is disabled ie marked offline
 554  *
 555  * Input:
 556  *     ha - pointer to host adapter structure
 557  *
 558  * Note:
 559  *    Does context switching-Release SPIN_LOCK
 560  *    (if any) before calling this routine.
 561  *
 562  * Return:
 563  *    Success (Adapter is online) : 0
 564  *    Failed  (Adapter is offline/disabled) : 1
 565  */
 566 int
 567 qla2x00_wait_for_hba_online(scsi_qla_host_t *ha)
 568 {
 569         int             return_status;
 570         unsigned long   wait_online;
 571         scsi_qla_host_t *pha = to_qla_parent(ha);
 572
 573         wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 574         while (((test_bit(ISP_ABORT_NEEDED, &pha->dpc_flags)) ||
 575             test_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags) ||
 576             test_bit(ISP_ABORT_RETRY, &pha->dpc_flags) ||
 577             pha->dpc_active) && time_before(jiffies, wait_online)) {
 578
 579                 msleep(1000);
 580         }
 581         if (pha->flags.online)
 582                 return_status = QLA_SUCCESS;
 583         else
 584                 return_status = QLA_FUNCTION_FAILED;
 585
 586         DEBUG2(printk("%s return_status=%d\n",__func__,return_status));
 587
 588         return (return_status);
 589 }
 590
 591 /*
 592  * qla2x00_wait_for_loop_ready
 593  *    Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
 594  *    to be in LOOP_READY state.
 595  * Input:
 596  *     ha - pointer to host adapter structure
 597  *
 598  * Note:
 599  *    Does context switching-Release SPIN_LOCK
 600  *    (if any) before calling this routine.
 601  *
 602  *
 603  * Return:
 604  *    Success (LOOP_READY) : 0
 605  *    Failed  (LOOP_NOT_READY) : 1
 606  */
 607 static inline int
 608 qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha)
 609 {
 610         int      return_status = QLA_SUCCESS;
 611         unsigned long loop_timeout ;
 612         scsi_qla_host_t *pha = to_qla_parent(ha);
 613
 614         /* wait for 5 min at the max for loop to be ready */
 615         loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 616
 617         while ((!atomic_read(&pha->loop_down_timer) &&
 618             atomic_read(&pha->loop_state) == LOOP_DOWN) ||
 619             atomic_read(&pha->loop_state) != LOOP_READY) {
 620                 if (atomic_read(&pha->loop_state) == LOOP_DEAD) {
 621                         return_status = QLA_FUNCTION_FAILED;
 622                         break;
 623                 }
 624                 msleep(1000);
 625                 if (time_after_eq(jiffies, loop_timeout)) {
 626                         return_status = QLA_FUNCTION_FAILED;
 627                         break;
 628                 }
 629         }
 630         return (return_status);
 631 }
 632
 633 static void
 634 qla2x00_block_error_handler(struct scsi_cmnd *cmnd)
 635 {
 636         struct Scsi_Host *shost = cmnd->device->host;
 637         struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
 638         unsigned long flags;
 639
 640         spin_lock_irqsave(shost->host_lock, flags);
 641         while (rport->port_state == FC_PORTSTATE_BLOCKED) {
 642                 spin_unlock_irqrestore(shost->host_lock, flags);
 643                 msleep(1000);
 644                 spin_lock_irqsave(shost->host_lock, flags);
 645         }
 646         spin_unlock_irqrestore(shost->host_lock, flags);
 647         return;
 648 }
 649
 650 /**************************************************************************
 651 * qla2xxx_eh_abort
 652 *
 653 * Description:
 654 *    The abort function will abort the specified command.
 655 *
 656 * Input:
 657 *    cmd = Linux SCSI command packet to be aborted.
 658 *
 659 * Returns:
 660 *    Either SUCCESS or FAILED.
 661 *
 662 * Note:
 663 *    Only return FAILED if command not returned by firmware.
 664 **************************************************************************/
 665 static int
 666 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
 667 {
 668         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
 669         srb_t *sp;
 670         int ret, i;
 671         unsigned int id, lun;
 672         unsigned long serial;
 673         unsigned long flags;
 674         int wait = 0;
 675         scsi_qla_host_t *pha = to_qla_parent(ha);
 676
 677         qla2x00_block_error_handler(cmd);
 678
 679         if (!CMD_SP(cmd))
 680                 return SUCCESS;
 681
 682         ret = SUCCESS;
 683
 684         id = cmd->device->id;
 685         lun = cmd->device->lun;
 686         serial = cmd->serial_number;
 687
 688         /* Check active list for command command. */
 689         spin_lock_irqsave(&pha->hardware_lock, flags);
 690         for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
 691                 sp = pha->outstanding_cmds[i];
 692
 693                 if (sp == NULL)
 694                         continue;
 695
 696                 if (sp->cmd != cmd)
 697                         continue;
 698
 699                 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld.\n",
 700                     __func__, ha->host_no, sp, serial));
 701                 DEBUG3(qla2x00_print_scsi_cmd(cmd));
 702
 703                 spin_unlock_irqrestore(&pha->hardware_lock, flags);
 704                 if (ha->isp_ops->abort_command(ha, sp)) {
 705                         DEBUG2(printk("%s(%ld): abort_command "
 706                             "mbx failed.\n", __func__, ha->host_no));
 707                 } else {
 708                         DEBUG3(printk("%s(%ld): abort_command "
 709                             "mbx success.\n", __func__, ha->host_no));
 710                         wait = 1;
 711                 }
 712                 spin_lock_irqsave(&pha->hardware_lock, flags);
 713
 714                 break;
 715         }
 716         spin_unlock_irqrestore(&pha->hardware_lock, flags);
 717
 718         /* Wait for the command to be returned. */
 719         if (wait) {
 720                 if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) {
 721                         qla_printk(KERN_ERR, ha,
 722                             "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
 723                             "%x.\n", ha->host_no, id, lun, serial, ret);
 724                         ret = FAILED;
 725                 }
 726         }
 727
 728         qla_printk(KERN_INFO, ha,
 729             "scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n",
 730             ha->host_no, id, lun, wait, serial, ret);
 731
 732         return ret;
 733 }
 734
 735 /**************************************************************************
 736 * qla2x00_eh_wait_for_pending_target_commands
 737 *
 738 * Description:
 739 *    Waits for all the commands to come back from the specified target.
 740 *
 741 * Input:
 742 *    ha - pointer to scsi_qla_host structure.
 743 *    t  - target
 744 * Returns:
 745 *    Either SUCCESS or FAILED.
 746 *
 747 * Note:
 748 **************************************************************************/
 749 static int
 750 qla2x00_eh_wait_for_pending_target_commands(scsi_qla_host_t *ha, unsigned int t)
 751 {
 752         int     cnt;
 753         int     status;
 754         srb_t           *sp;
 755         struct scsi_cmnd *cmd;
 756         unsigned long flags;
 757         scsi_qla_host_t *pha = to_qla_parent(ha);
 758
 759         status = 0;
 760
 761         /*
 762          * Waiting for all commands for the designated target in the active
 763          * array
 764          */
 765         for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
 766                 spin_lock_irqsave(&pha->hardware_lock, flags);
 767                 sp = pha->outstanding_cmds[cnt];
 768                 if (sp) {
 769                         cmd = sp->cmd;
 770                         spin_unlock_irqrestore(&pha->hardware_lock, flags);
 771                         if (cmd->device->id == t &&
 772                             ha->vp_idx == sp->ha->vp_idx) {
 773                                 if (!qla2x00_eh_wait_on_command(ha, cmd)) {
 774                                         status = 1;
 775                                         break;
 776                                 }
 777                         }
 778                 } else {
 779                         spin_unlock_irqrestore(&pha->hardware_lock, flags);
 780                 }
 781         }
 782         return (status);
 783 }
 784
 785
 786 /**************************************************************************
 787 * qla2xxx_eh_device_reset
 788 *
 789 * Description:
 790 *    The device reset function will reset the target and abort any
 791 *    executing commands.
 792 *
 793 *    NOTE: The use of SP is undefined within this context.  Do *NOT*
 794 *          attempt to use this value, even if you determine it is
 795 *          non-null.
 796 *
 797 * Input:
 798 *    cmd = Linux SCSI command packet of the command that cause the
 799 *          bus device reset.
 800 *
 801 * Returns:
 802 *    SUCCESS/FAILURE (defined as macro in scsi.h).
 803 *
 804 **************************************************************************/
 805 static int
 806 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
 807 {
 808         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
 809         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 810         int ret = FAILED;
 811         unsigned int id, lun;
 812         unsigned long serial;
 813
 814         qla2x00_block_error_handler(cmd);
 815
 816         id = cmd->device->id;
 817         lun = cmd->device->lun;
 818         serial = cmd->serial_number;
 819
 820         if (!fcport)
 821                 return ret;
 822
 823         qla_printk(KERN_INFO, ha,
 824             "scsi(%ld:%d:%d): DEVICE RESET ISSUED.\n", ha->host_no, id, lun);
 825
 826         if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
 827                 goto eh_dev_reset_done;
 828
 829         if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
 830                 if (qla2x00_device_reset(ha, fcport) == 0)
 831                         ret = SUCCESS;
 832
 833 #if defined(LOGOUT_AFTER_DEVICE_RESET)
 834                 if (ret == SUCCESS) {
 835                         if (fcport->flags & FC_FABRIC_DEVICE) {
 836                                 ha->isp_ops->fabric_logout(ha, fcport->loop_id);
 837                                 qla2x00_mark_device_lost(ha, fcport, 0, 0);
 838                         }
 839                 }
 840 #endif
 841         } else {
 842                 DEBUG2(printk(KERN_INFO
 843                     "%s failed: loop not ready\n",__func__));
 844         }
 845
 846         if (ret == FAILED) {
 847                 DEBUG3(printk("%s(%ld): device reset failed\n",
 848                     __func__, ha->host_no));
 849                 qla_printk(KERN_INFO, ha, "%s: device reset failed\n",
 850                     __func__);
 851
 852                 goto eh_dev_reset_done;
 853         }
 854
 855         /* Flush outstanding commands. */
 856         if (qla2x00_eh_wait_for_pending_target_commands(ha, id))
 857                 ret = FAILED;
 858         if (ret == FAILED) {
 859                 DEBUG3(printk("%s(%ld): failed while waiting for commands\n",
 860                     __func__, ha->host_no));
 861                 qla_printk(KERN_INFO, ha,
 862                     "%s: failed while waiting for commands\n", __func__);
 863         } else
 864                 qla_printk(KERN_INFO, ha,
 865                     "scsi(%ld:%d:%d): DEVICE RESET SUCCEEDED.\n", ha->host_no,
 866                     id, lun);
 867  eh_dev_reset_done:
 868         return ret;
 869 }
 870
 871 /**************************************************************************
 872 * qla2x00_eh_wait_for_pending_commands
 873 *
 874 * Description:
 875 *    Waits for all the commands to come back from the specified host.
 876 *
 877 * Input:
 878 *    ha - pointer to scsi_qla_host structure.
 879 *
 880 * Returns:
 881 *    1 : SUCCESS
 882 *    0 : FAILED
 883 *
 884 * Note:
 885 **************************************************************************/
 886 static int
 887 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha)
 888 {
 889         int     cnt;
 890         int     status;
 891         srb_t           *sp;
 892         struct scsi_cmnd *cmd;
 893         unsigned long flags;
 894
 895         status = 1;
 896
 897         /*
 898          * Waiting for all commands for the designated target in the active
 899          * array
 900          */
 901         for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
 902                 spin_lock_irqsave(&ha->hardware_lock, flags);
 903                 sp = ha->outstanding_cmds[cnt];
 904                 if (sp) {
 905                         cmd = sp->cmd;
 906                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 907                         status = qla2x00_eh_wait_on_command(ha, cmd);
 908                         if (status == 0)
 909                                 break;
 910                 }
 911                 else {
 912                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 913                 }
 914         }
 915         return (status);
 916 }
 917
 918
 919 /**************************************************************************
 920 * qla2xxx_eh_bus_reset
 921 *
 922 * Description:
 923 *    The bus reset function will reset the bus and abort any executing
 924 *    commands.
 925 *
 926 * Input:
 927 *    cmd = Linux SCSI command packet of the command that cause the
 928 *          bus reset.
 929 *
 930 * Returns:
 931 *    SUCCESS/FAILURE (defined as macro in scsi.h).
 932 *
 933 **************************************************************************/
 934 static int
 935 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
 936 {
 937         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
 938         scsi_qla_host_t *pha = to_qla_parent(ha);
 939         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 940         int ret = FAILED;
 941         unsigned int id, lun;
 942         unsigned long serial;
 943
 944         qla2x00_block_error_handler(cmd);
 945
 946         id = cmd->device->id;
 947         lun = cmd->device->lun;
 948         serial = cmd->serial_number;
 949
 950         if (!fcport)
 951                 return ret;
 952
 953         qla_printk(KERN_INFO, ha,
 954             "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun);
 955
 956         if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) {
 957                 DEBUG2(printk("%s failed:board disabled\n",__func__));
 958                 goto eh_bus_reset_done;
 959         }
 960
 961         if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
 962                 if (qla2x00_loop_reset(ha) == QLA_SUCCESS)
 963                         ret = SUCCESS;
 964         }
 965         if (ret == FAILED)
 966                 goto eh_bus_reset_done;
 967
 968         /* Flush outstanding commands. */
 969         if (!qla2x00_eh_wait_for_pending_commands(pha))
 970                 ret = FAILED;
 971
 972 eh_bus_reset_done:
 973         qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
 974             (ret == FAILED) ? "failed" : "succeded");
 975
 976         return ret;
 977 }
 978
 979 /**************************************************************************
 980 * qla2xxx_eh_host_reset
 981 *
 982 * Description:
 983 *    The reset function will reset the Adapter.
 984 *
 985 * Input:
 986 *      cmd = Linux SCSI command packet of the command that cause the
 987 *            adapter reset.
 988 *
 989 * Returns:
 990 *      Either SUCCESS or FAILED.
 991 *
 992 * Note:
 993 **************************************************************************/
 994 static int
 995 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
 996 {
 997         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
 998         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 999         int ret = FAILED;
1000         unsigned int id, lun;
1001         unsigned long serial;
1002         scsi_qla_host_t *pha = to_qla_parent(ha);
1003
1004         qla2x00_block_error_handler(cmd);
1005
1006         id = cmd->device->id;
1007         lun = cmd->device->lun;
1008         serial = cmd->serial_number;
1009
1010         if (!fcport)
1011                 return ret;
1012
1013         qla_printk(KERN_INFO, ha,
1014             "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun);
1015
1016         if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
1017                 goto eh_host_reset_lock;
1018
1019         /*
1020          * Fixme-may be dpc thread is active and processing
1021          * loop_resync,so wait a while for it to
1022          * be completed and then issue big hammer.Otherwise
1023          * it may cause I/O failure as big hammer marks the
1024          * devices as lost kicking of the port_down_timer
1025          * while dpc is stuck for the mailbox to complete.
1026          */
1027         qla2x00_wait_for_loop_ready(ha);
1028         set_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
1029         if (qla2x00_abort_isp(pha)) {
1030                 clear_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
1031                 /* failed. schedule dpc to try */
1032                 set_bit(ISP_ABORT_NEEDED, &pha->dpc_flags);
1033
1034                 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
1035                         goto eh_host_reset_lock;
1036         }
1037         clear_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
1038
1039         /* Waiting for our command in done_queue to be returned to OS.*/
1040         if (qla2x00_eh_wait_for_pending_commands(pha))
1041                 ret = SUCCESS;
1042
1043         if (ha->parent)
1044                 qla2x00_vp_abort_isp(ha);
1045
1046 eh_host_reset_lock:
1047         qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
1048             (ret == FAILED) ? "failed" : "succeded");
1049
1050         return ret;
1051 }
1052
1053 /*
1054 * qla2x00_loop_reset
1055 *      Issue loop reset.
1056 *
1057 * Input:
1058 *      ha = adapter block pointer.
1059 *
1060 * Returns:
1061 *      0 = success
1062 */
1063 static int
1064 qla2x00_loop_reset(scsi_qla_host_t *ha)
1065 {
1066         int ret;
1067         struct fc_port *fcport;
1068
1069         if (ha->flags.enable_lip_full_login) {
1070                 ret = qla2x00_full_login_lip(ha);
1071                 if (ret != QLA_SUCCESS) {
1072                         DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1073                             "full_login_lip=%d.\n", __func__, ha->host_no,
1074                             ret));
1075                 }
1076                 atomic_set(&ha->loop_state, LOOP_DOWN);
1077                 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
1078                 qla2x00_mark_all_devices_lost(ha, 0);
1079                 qla2x00_wait_for_loop_ready(ha);
1080         }
1081
1082         if (ha->flags.enable_lip_reset) {
1083                 ret = qla2x00_lip_reset(ha);
1084                 if (ret != QLA_SUCCESS) {
1085                         DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1086                             "lip_reset=%d.\n", __func__, ha->host_no, ret));
1087                 }
1088                 qla2x00_wait_for_loop_ready(ha);
1089         }
1090
1091         if (ha->flags.enable_target_reset) {
1092                 list_for_each_entry(fcport, &ha->fcports, list) {
1093                         if (fcport->port_type != FCT_TARGET)
1094                                 continue;
1095
1096                         ret = qla2x00_device_reset(ha, fcport);
1097                         if (ret != QLA_SUCCESS) {
1098                                 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1099                                     "target_reset=%d d_id=%x.\n", __func__,
1100                                     ha->host_no, ret, fcport->d_id.b24));
1101                         }
1102                 }
1103         }
1104
1105         /* Issue marker command only when we are going to start the I/O */
1106         ha->marker_needed = 1;
1107
1108         return QLA_SUCCESS;
1109 }
1110
1111 /*
1112  * qla2x00_device_reset
1113  *      Issue bus device reset message to the target.
1114  *
1115  * Input:
1116  *      ha = adapter block pointer.
1117  *      t = SCSI ID.
1118  *      TARGET_QUEUE_LOCK must be released.
1119  *      ADAPTER_STATE_LOCK must be released.
1120  *
1121  * Context:
1122  *      Kernel context.
1123  */
1124 static int
1125 qla2x00_device_reset(scsi_qla_host_t *ha, fc_port_t *reset_fcport)
1126 {
1127         /* Abort Target command will clear Reservation */
1128         return ha->isp_ops->abort_target(reset_fcport);
1129 }
1130
1131 static int
1132 qla2xxx_slave_alloc(struct scsi_device *sdev)
1133 {
1134         struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1135
1136         if (!rport || fc_remote_port_chkready(rport))
1137                 return -ENXIO;
1138
1139         sdev->hostdata = *(fc_port_t **)rport->dd_data;
1140
1141         return 0;
1142 }
1143
1144 static int
1145 qla2xxx_slave_configure(struct scsi_device *sdev)
1146 {
1147         scsi_qla_host_t *ha = shost_priv(sdev->host);
1148         struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1149
1150         if (sdev->tagged_supported)
1151                 scsi_activate_tcq(sdev, ha->max_q_depth);
1152         else
1153                 scsi_deactivate_tcq(sdev, ha->max_q_depth);
1154
1155         rport->dev_loss_tmo = ha->port_down_retry_count + 5;
1156
1157         return 0;
1158 }
1159
1160 static void
1161 qla2xxx_slave_destroy(struct scsi_device *sdev)
1162 {
1163         sdev->hostdata = NULL;
1164 }
1165
1166 static int
1167 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1168 {
1169         scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1170         return sdev->queue_depth;
1171 }
1172
1173 static int
1174 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1175 {
1176         if (sdev->tagged_supported) {
1177                 scsi_set_tag_type(sdev, tag_type);
1178                 if (tag_type)
1179                         scsi_activate_tcq(sdev, sdev->queue_depth);
1180                 else
1181                         scsi_deactivate_tcq(sdev, sdev->queue_depth);
1182         } else
1183                 tag_type = 0;
1184
1185         return tag_type;
1186 }
1187
1188 /**
1189  * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1190  * @ha: HA context
1191  *
1192  * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1193  * supported addressing method.
1194  */
1195 static void
1196 qla2x00_config_dma_addressing(scsi_qla_host_t *ha)
1197 {
1198         /* Assume a 32bit DMA mask. */
1199         ha->flags.enable_64bit_addressing = 0;
1200
1201         if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1202                 /* Any upper-dword bits set? */
1203                 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1204                     !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1205                         /* Ok, a 64bit DMA mask is applicable. */
1206                         ha->flags.enable_64bit_addressing = 1;
1207                         ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1208                         ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1209                         return;
1210                 }
1211         }
1212
1213         dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1214         pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
1215 }
1216
1217 static void
1218 qla2x00_enable_intrs(scsi_qla_host_t *ha)
1219 {
1220         unsigned long flags = 0;
1221         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1222
1223         spin_lock_irqsave(&ha->hardware_lock, flags);
1224         ha->interrupts_on = 1;
1225         /* enable risc and host interrupts */
1226         WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1227         RD_REG_WORD(&reg->ictrl);
1228         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1229
1230 }
1231
1232 static void
1233 qla2x00_disable_intrs(scsi_qla_host_t *ha)
1234 {
1235         unsigned long flags = 0;
1236         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1237
1238         spin_lock_irqsave(&ha->hardware_lock, flags);
1239         ha->interrupts_on = 0;
1240         /* disable risc and host interrupts */
1241         WRT_REG_WORD(&reg->ictrl, 0);
1242         RD_REG_WORD(&reg->ictrl);
1243         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1244 }
1245
1246 static void
1247 qla24xx_enable_intrs(scsi_qla_host_t *ha)
1248 {
1249         unsigned long flags = 0;
1250         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1251
1252         spin_lock_irqsave(&ha->hardware_lock, flags);
1253         ha->interrupts_on = 1;
1254         WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1255         RD_REG_DWORD(&reg->ictrl);
1256         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1257 }
1258
1259 static void
1260 qla24xx_disable_intrs(scsi_qla_host_t *ha)
1261 {
1262         unsigned long flags = 0;
1263         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1264
1265         spin_lock_irqsave(&ha->hardware_lock, flags);
1266         ha->interrupts_on = 0;
1267         WRT_REG_DWORD(&reg->ictrl, 0);
1268         RD_REG_DWORD(&reg->ictrl);
1269         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1270 }
1271
1272 static struct isp_operations qla2100_isp_ops = {
1273         .pci_config             = qla2100_pci_config,
1274         .reset_chip             = qla2x00_reset_chip,
1275         .chip_diag              = qla2x00_chip_diag,
1276         .config_rings           = qla2x00_config_rings,
1277         .reset_adapter          = qla2x00_reset_adapter,
1278         .nvram_config           = qla2x00_nvram_config,
1279         .update_fw_options      = qla2x00_update_fw_options,
1280         .load_risc              = qla2x00_load_risc,
1281         .pci_info_str           = qla2x00_pci_info_str,
1282         .fw_version_str         = qla2x00_fw_version_str,
1283         .intr_handler           = qla2100_intr_handler,
1284         .enable_intrs           = qla2x00_enable_intrs,
1285         .disable_intrs          = qla2x00_disable_intrs,
1286         .abort_command          = qla2x00_abort_command,
1287         .abort_target           = qla2x00_abort_target,
1288         .fabric_login           = qla2x00_login_fabric,
1289         .fabric_logout          = qla2x00_fabric_logout,
1290         .calc_req_entries       = qla2x00_calc_iocbs_32,
1291         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1292         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1293         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1294         .read_nvram             = qla2x00_read_nvram_data,
1295         .write_nvram            = qla2x00_write_nvram_data,
1296         .fw_dump                = qla2100_fw_dump,
1297         .beacon_on              = NULL,
1298         .beacon_off             = NULL,
1299         .beacon_blink           = NULL,
1300         .read_optrom            = qla2x00_read_optrom_data,
1301         .write_optrom           = qla2x00_write_optrom_data,
1302         .get_flash_version      = qla2x00_get_flash_version,
1303 };
1304
1305 static struct isp_operations qla2300_isp_ops = {
1306         .pci_config             = qla2300_pci_config,
1307         .reset_chip             = qla2x00_reset_chip,
1308         .chip_diag              = qla2x00_chip_diag,
1309         .config_rings           = qla2x00_config_rings,
1310         .reset_adapter          = qla2x00_reset_adapter,
1311         .nvram_config           = qla2x00_nvram_config,
1312         .update_fw_options      = qla2x00_update_fw_options,
1313         .load_risc              = qla2x00_load_risc,
1314         .pci_info_str           = qla2x00_pci_info_str,
1315         .fw_version_str         = qla2x00_fw_version_str,
1316         .intr_handler           = qla2300_intr_handler,
1317         .enable_intrs           = qla2x00_enable_intrs,
1318         .disable_intrs          = qla2x00_disable_intrs,
1319         .abort_command          = qla2x00_abort_command,
1320         .abort_target           = qla2x00_abort_target,
1321         .fabric_login           = qla2x00_login_fabric,
1322         .fabric_logout          = qla2x00_fabric_logout,
1323         .calc_req_entries       = qla2x00_calc_iocbs_32,
1324         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1325         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1326         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1327         .read_nvram             = qla2x00_read_nvram_data,
1328         .write_nvram            = qla2x00_write_nvram_data,
1329         .fw_dump                = qla2300_fw_dump,
1330         .beacon_on              = qla2x00_beacon_on,
1331         .beacon_off             = qla2x00_beacon_off,
1332         .beacon_blink           = qla2x00_beacon_blink,
1333         .read_optrom            = qla2x00_read_optrom_data,
1334         .write_optrom           = qla2x00_write_optrom_data,
1335         .get_flash_version      = qla2x00_get_flash_version,
1336 };
1337
1338 static struct isp_operations qla24xx_isp_ops = {
1339         .pci_config             = qla24xx_pci_config,
1340         .reset_chip             = qla24xx_reset_chip,
1341         .chip_diag              = qla24xx_chip_diag,
1342         .config_rings           = qla24xx_config_rings,
1343         .reset_adapter          = qla24xx_reset_adapter,
1344         .nvram_config           = qla24xx_nvram_config,
1345         .update_fw_options      = qla24xx_update_fw_options,
1346         .load_risc              = qla24xx_load_risc,
1347         .pci_info_str           = qla24xx_pci_info_str,
1348         .fw_version_str         = qla24xx_fw_version_str,
1349         .intr_handler           = qla24xx_intr_handler,
1350         .enable_intrs           = qla24xx_enable_intrs,
1351         .disable_intrs          = qla24xx_disable_intrs,
1352         .abort_command          = qla24xx_abort_command,
1353         .abort_target           = qla24xx_abort_target,
1354         .fabric_login           = qla24xx_login_fabric,
1355         .fabric_logout          = qla24xx_fabric_logout,
1356         .calc_req_entries       = NULL,
1357         .build_iocbs            = NULL,
1358         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1359         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1360         .read_nvram             = qla24xx_read_nvram_data,
1361         .write_nvram            = qla24xx_write_nvram_data,
1362         .fw_dump                = qla24xx_fw_dump,
1363         .beacon_on              = qla24xx_beacon_on,
1364         .beacon_off             = qla24xx_beacon_off,
1365         .beacon_blink           = qla24xx_beacon_blink,
1366         .read_optrom            = qla24xx_read_optrom_data,
1367         .write_optrom           = qla24xx_write_optrom_data,
1368         .get_flash_version      = qla24xx_get_flash_version,
1369 };
1370
1371 static struct isp_operations qla25xx_isp_ops = {
1372         .pci_config             = qla25xx_pci_config,
1373         .reset_chip             = qla24xx_reset_chip,
1374         .chip_diag              = qla24xx_chip_diag,
1375         .config_rings           = qla24xx_config_rings,
1376         .reset_adapter          = qla24xx_reset_adapter,
1377         .nvram_config           = qla24xx_nvram_config,
1378         .update_fw_options      = qla24xx_update_fw_options,
1379         .load_risc              = qla24xx_load_risc,
1380         .pci_info_str           = qla24xx_pci_info_str,
1381         .fw_version_str         = qla24xx_fw_version_str,
1382         .intr_handler           = qla24xx_intr_handler,
1383         .enable_intrs           = qla24xx_enable_intrs,
1384         .disable_intrs          = qla24xx_disable_intrs,
1385         .abort_command          = qla24xx_abort_command,
1386         .abort_target           = qla24xx_abort_target,
1387         .fabric_login           = qla24xx_login_fabric,
1388         .fabric_logout          = qla24xx_fabric_logout,
1389         .calc_req_entries       = NULL,
1390         .build_iocbs            = NULL,
1391         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1392         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1393         .read_nvram             = qla25xx_read_nvram_data,
1394         .write_nvram            = qla25xx_write_nvram_data,
1395         .fw_dump                = qla25xx_fw_dump,
1396         .beacon_on              = qla24xx_beacon_on,
1397         .beacon_off             = qla24xx_beacon_off,
1398         .beacon_blink           = qla24xx_beacon_blink,
1399         .read_optrom            = qla25xx_read_optrom_data,
1400         .write_optrom           = qla24xx_write_optrom_data,
1401         .get_flash_version      = qla24xx_get_flash_version,
1402 };
1403
1404 static inline void
1405 qla2x00_set_isp_flags(scsi_qla_host_t *ha)
1406 {
1407         ha->device_type = DT_EXTENDED_IDS;
1408         switch (ha->pdev->device) {
1409         case PCI_DEVICE_ID_QLOGIC_ISP2100:
1410                 ha->device_type |= DT_ISP2100;
1411                 ha->device_type &= ~DT_EXTENDED_IDS;
1412                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1413                 break;
1414         case PCI_DEVICE_ID_QLOGIC_ISP2200:
1415                 ha->device_type |= DT_ISP2200;
1416                 ha->device_type &= ~DT_EXTENDED_IDS;
1417                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1418                 break;
1419         case PCI_DEVICE_ID_QLOGIC_ISP2300:
1420                 ha->device_type |= DT_ISP2300;
1421                 ha->device_type |= DT_ZIO_SUPPORTED;
1422                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1423                 break;
1424         case PCI_DEVICE_ID_QLOGIC_ISP2312:
1425                 ha->device_type |= DT_ISP2312;
1426                 ha->device_type |= DT_ZIO_SUPPORTED;
1427                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1428                 break;
1429         case PCI_DEVICE_ID_QLOGIC_ISP2322:
1430                 ha->device_type |= DT_ISP2322;
1431                 ha->device_type |= DT_ZIO_SUPPORTED;
1432                 if (ha->pdev->subsystem_vendor == 0x1028 &&
1433                     ha->pdev->subsystem_device == 0x0170)
1434                         ha->device_type |= DT_OEM_001;
1435                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1436                 break;
1437         case PCI_DEVICE_ID_QLOGIC_ISP6312:
1438                 ha->device_type |= DT_ISP6312;
1439                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1440                 break;
1441         case PCI_DEVICE_ID_QLOGIC_ISP6322:
1442                 ha->device_type |= DT_ISP6322;
1443                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1444                 break;
1445         case PCI_DEVICE_ID_QLOGIC_ISP2422:
1446                 ha->device_type |= DT_ISP2422;
1447                 ha->device_type |= DT_ZIO_SUPPORTED;
1448                 ha->device_type |= DT_FWI2;
1449                 ha->device_type |= DT_IIDMA;
1450                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1451                 break;
1452         case PCI_DEVICE_ID_QLOGIC_ISP2432:
1453                 ha->device_type |= DT_ISP2432;
1454                 ha->device_type |= DT_ZIO_SUPPORTED;
1455                 ha->device_type |= DT_FWI2;
1456                 ha->device_type |= DT_IIDMA;
1457                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1458                 break;
1459         case PCI_DEVICE_ID_QLOGIC_ISP5422:
1460                 ha->device_type |= DT_ISP5422;
1461                 ha->device_type |= DT_FWI2;
1462                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1463                 break;
1464         case PCI_DEVICE_ID_QLOGIC_ISP5432:
1465                 ha->device_type |= DT_ISP5432;
1466                 ha->device_type |= DT_FWI2;
1467                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1468                 break;
1469         case PCI_DEVICE_ID_QLOGIC_ISP2532:
1470                 ha->device_type |= DT_ISP2532;
1471                 ha->device_type |= DT_ZIO_SUPPORTED;
1472                 ha->device_type |= DT_FWI2;
1473                 ha->device_type |= DT_IIDMA;
1474                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1475                 break;
1476         }
1477 }
1478
1479 static int
1480 qla2x00_iospace_config(scsi_qla_host_t *ha)
1481 {
1482         unsigned long   pio, pio_len, pio_flags;
1483         unsigned long   mmio, mmio_len, mmio_flags;
1484
1485         if (pci_request_selected_regions(ha->pdev, ha->bars,
1486             QLA2XXX_DRIVER_NAME)) {
1487                 qla_printk(KERN_WARNING, ha,
1488                     "Failed to reserve PIO/MMIO regions (%s)\n",
1489                     pci_name(ha->pdev));
1490
1491                 goto iospace_error_exit;
1492         }
1493         if (!(ha->bars & 1))
1494                 goto skip_pio;
1495
1496         /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1497         pio = pci_resource_start(ha->pdev, 0);
1498         pio_len = pci_resource_len(ha->pdev, 0);
1499         pio_flags = pci_resource_flags(ha->pdev, 0);
1500         if (pio_flags & IORESOURCE_IO) {
1501                 if (pio_len < MIN_IOBASE_LEN) {
1502                         qla_printk(KERN_WARNING, ha,
1503                             "Invalid PCI I/O region size (%s)...\n",
1504                                 pci_name(ha->pdev));
1505                         pio = 0;
1506                 }
1507         } else {
1508                 qla_printk(KERN_WARNING, ha,
1509                     "region #0 not a PIO resource (%s)...\n",
1510                     pci_name(ha->pdev));
1511                 pio = 0;
1512         }
1513         ha->pio_address = pio;
1514         ha->pio_length = pio_len;
1515
1516 skip_pio:
1517         /* Use MMIO operations for all accesses. */
1518         mmio = pci_resource_start(ha->pdev, 1);
1519         mmio_len = pci_resource_len(ha->pdev, 1);
1520         mmio_flags = pci_resource_flags(ha->pdev, 1);
1521
1522         if (!(mmio_flags & IORESOURCE_MEM)) {
1523                 qla_printk(KERN_ERR, ha,
1524                     "region #0 not an MMIO resource (%s), aborting\n",
1525                     pci_name(ha->pdev));
1526                 goto iospace_error_exit;
1527         }
1528         if (mmio_len < MIN_IOBASE_LEN) {
1529                 qla_printk(KERN_ERR, ha,
1530                     "Invalid PCI mem region size (%s), aborting\n",
1531                         pci_name(ha->pdev));
1532                 goto iospace_error_exit;
1533         }
1534
1535         ha->iobase = ioremap(mmio, MIN_IOBASE_LEN);
1536         if (!ha->iobase) {
1537                 qla_printk(KERN_ERR, ha,
1538                     "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1539
1540                 goto iospace_error_exit;
1541         }
1542
1543         return (0);
1544
1545 iospace_error_exit:
1546         return (-ENOMEM);
1547 }
1548
1549 static void
1550 qla2xxx_scan_start(struct Scsi_Host *shost)
1551 {
1552         scsi_qla_host_t *ha = shost_priv(shost);
1553
1554         set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
1555         set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1556         set_bit(RSCN_UPDATE, &ha->dpc_flags);
1557 }
1558
1559 static int
1560 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1561 {
1562         scsi_qla_host_t *ha = shost_priv(shost);
1563
1564         if (!ha->host)
1565                 return 1;
1566         if (time > ha->loop_reset_delay * HZ)
1567                 return 1;
1568
1569         return atomic_read(&ha->loop_state) == LOOP_READY;
1570 }
1571
1572 /*
1573  * PCI driver interface
1574  */
1575 static int __devinit
1576 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1577 {
1578         int     ret = -ENODEV;
1579         device_reg_t __iomem *reg;
1580         struct Scsi_Host *host;
1581         scsi_qla_host_t *ha;
1582         unsigned long   flags = 0;
1583         char pci_info[30];
1584         char fw_str[30];
1585         struct scsi_host_template *sht;
1586         int bars;
1587
1588         bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
1589         sht = &qla2x00_driver_template;
1590         if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1591             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1592             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1593             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
1594             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532) {
1595                 bars = pci_select_bars(pdev, IORESOURCE_MEM);
1596                 sht = &qla24xx_driver_template;
1597         }
1598
1599         if (pci_enable_device_bars(pdev, bars))
1600                 goto probe_out;
1601
1602         if (pci_find_aer_capability(pdev))
1603                 if (pci_enable_pcie_error_reporting(pdev))
1604                         goto probe_out;
1605
1606         host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
1607         if (host == NULL) {
1608                 printk(KERN_WARNING
1609                     "qla2xxx: Couldn't allocate host from scsi layer!\n");
1610                 goto probe_disable_device;
1611         }
1612
1613         /* Clear our data area */
1614         ha = shost_priv(host);
1615         memset(ha, 0, sizeof(scsi_qla_host_t));
1616
1617         ha->pdev = pdev;
1618         ha->host = host;
1619         ha->host_no = host->host_no;
1620         sprintf(ha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, ha->host_no);
1621         ha->parent = NULL;
1622         ha->bars = bars;
1623
1624         /* Set ISP-type information. */
1625         qla2x00_set_isp_flags(ha);
1626
1627         /* Configure PCI I/O space */
1628         ret = qla2x00_iospace_config(ha);
1629         if (ret)
1630                 goto probe_failed;
1631
1632         qla_printk(KERN_INFO, ha,
1633             "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1634             ha->iobase);
1635
1636         spin_lock_init(&ha->hardware_lock);
1637
1638         ha->prev_topology = 0;
1639         ha->init_cb_size = sizeof(init_cb_t);
1640         ha->mgmt_svr_loop_id = MANAGEMENT_SERVER + ha->vp_idx;
1641         ha->link_data_rate = PORT_SPEED_UNKNOWN;
1642         ha->optrom_size = OPTROM_SIZE_2300;
1643
1644         ha->max_q_depth = MAX_Q_DEPTH;
1645         if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
1646                 ha->max_q_depth = ql2xmaxqdepth;
1647
1648         /* Assign ISP specific operations. */
1649         if (IS_QLA2100(ha)) {
1650                 host->max_id = MAX_TARGETS_2100;
1651                 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1652                 ha->request_q_length = REQUEST_ENTRY_CNT_2100;
1653                 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1654                 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1655                 host->sg_tablesize = 32;
1656                 ha->gid_list_info_size = 4;
1657                 ha->isp_ops = &qla2100_isp_ops;
1658         } else if (IS_QLA2200(ha)) {
1659                 host->max_id = MAX_TARGETS_2200;
1660                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1661                 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1662                 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1663                 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1664                 ha->gid_list_info_size = 4;
1665                 ha->isp_ops = &qla2100_isp_ops;
1666         } else if (IS_QLA23XX(ha)) {
1667                 host->max_id = MAX_TARGETS_2200;
1668                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1669                 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1670                 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1671                 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1672                 ha->gid_list_info_size = 6;
1673                 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1674                         ha->optrom_size = OPTROM_SIZE_2322;
1675                 ha->isp_ops = &qla2300_isp_ops;
1676         } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
1677                 host->max_id = MAX_TARGETS_2200;
1678                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1679                 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1680                 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1681                 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1682                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1683                 ha->mgmt_svr_loop_id = 10 + ha->vp_idx;
1684                 ha->gid_list_info_size = 8;
1685                 ha->optrom_size = OPTROM_SIZE_24XX;
1686                 ha->isp_ops = &qla24xx_isp_ops;
1687         } else if (IS_QLA25XX(ha)) {
1688                 host->max_id = MAX_TARGETS_2200;
1689                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1690                 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1691                 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1692                 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1693                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1694                 ha->mgmt_svr_loop_id = 10 + ha->vp_idx;
1695                 ha->gid_list_info_size = 8;
1696                 ha->optrom_size = OPTROM_SIZE_25XX;
1697                 ha->isp_ops = &qla25xx_isp_ops;
1698         }
1699         host->can_queue = ha->request_q_length + 128;
1700
1701         /* load the F/W, read paramaters, and init the H/W */
1702         ha->instance = num_hosts;
1703
1704         init_MUTEX(&ha->mbx_cmd_sem);
1705         init_MUTEX(&ha->vport_sem);
1706         init_MUTEX_LOCKED(&ha->mbx_intr_sem);
1707
1708         INIT_LIST_HEAD(&ha->list);
1709         INIT_LIST_HEAD(&ha->fcports);
1710         INIT_LIST_HEAD(&ha->vp_list);
1711
1712         set_bit(0, (unsigned long *) ha->vp_idx_map);
1713
1714         qla2x00_config_dma_addressing(ha);
1715         if (qla2x00_mem_alloc(ha)) {
1716                 qla_printk(KERN_WARNING, ha,
1717                     "[ERROR] Failed to allocate memory for adapter\n");
1718
1719                 ret = -ENOMEM;
1720                 goto probe_failed;
1721         }
1722
1723         if (qla2x00_initialize_adapter(ha)) {
1724                 qla_printk(KERN_WARNING, ha,
1725                     "Failed to initialize adapter\n");
1726
1727                 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1728                     "Adapter flags %x.\n",
1729                     ha->host_no, ha->device_flags));
1730
1731                 ret = -ENODEV;
1732                 goto probe_failed;
1733         }
1734
1735         /*
1736          * Startup the kernel thread for this host adapter
1737          */
1738         ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
1739                         "%s_dpc", ha->host_str);
1740         if (IS_ERR(ha->dpc_thread)) {
1741                 qla_printk(KERN_WARNING, ha,
1742                     "Unable to start DPC thread!\n");
1743                 ret = PTR_ERR(ha->dpc_thread);
1744                 goto probe_failed;
1745         }
1746
1747         host->this_id = 255;
1748         host->cmd_per_lun = 3;
1749         host->unique_id = ha->instance;
1750         host->max_cmd_len = MAX_CMDSZ;
1751         host->max_channel = MAX_BUSES - 1;
1752         host->max_lun = MAX_LUNS;
1753         host->transportt = qla2xxx_transport_template;
1754
1755         ret = qla2x00_request_irqs(ha);
1756         if (ret)
1757                 goto probe_failed;
1758
1759         /* Initialized the timer */
1760         qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL);
1761
1762         DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1763             ha->host_no, ha));
1764
1765         ha->isp_ops->disable_intrs(ha);
1766
1767         spin_lock_irqsave(&ha->hardware_lock, flags);
1768         reg = ha->iobase;
1769         if (IS_FWI2_CAPABLE(ha)) {
1770                 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_HOST_INT);
1771                 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_RISC_INT);
1772         } else {
1773                 WRT_REG_WORD(&reg->isp.semaphore, 0);
1774                 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_RISC_INT);
1775                 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_HOST_INT);
1776
1777                 /* Enable proper parity */
1778                 if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) {
1779                         if (IS_QLA2300(ha))
1780                                 /* SRAM parity */
1781                                 WRT_REG_WORD(&reg->isp.hccr,
1782                                     (HCCR_ENABLE_PARITY + 0x1));
1783                         else
1784                                 /* SRAM, Instruction RAM and GP RAM parity */
1785                                 WRT_REG_WORD(&reg->isp.hccr,
1786                                     (HCCR_ENABLE_PARITY + 0x7));
1787                 }
1788         }
1789         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1790
1791         ha->isp_ops->enable_intrs(ha);
1792
1793         pci_set_drvdata(pdev, ha);
1794
1795         ha->flags.init_done = 1;
1796         ha->flags.online = 1;
1797
1798         num_hosts++;
1799
1800         ret = scsi_add_host(host, &pdev->dev);
1801         if (ret)
1802                 goto probe_failed;
1803
1804         scsi_scan_host(host);
1805
1806         qla2x00_alloc_sysfs_attr(ha);
1807
1808         qla2x00_init_host_attr(ha);
1809
1810         qla_printk(KERN_INFO, ha, "\n"
1811             " QLogic Fibre Channel HBA Driver: %s\n"
1812             "  QLogic %s - %s\n"
1813             "  ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1814             qla2x00_version_str, ha->model_number,
1815             ha->model_desc ? ha->model_desc: "", pdev->device,
1816             ha->isp_ops->pci_info_str(ha, pci_info), pci_name(pdev),
1817             ha->flags.enable_64bit_addressing ? '+': '-', ha->host_no,
1818             ha->isp_ops->fw_version_str(ha, fw_str));
1819
1820         return 0;
1821
1822 probe_failed:
1823         qla2x00_free_device(ha);
1824
1825         scsi_host_put(host);
1826
1827 probe_disable_device:
1828         pci_disable_device(pdev);
1829
1830 probe_out:
1831         return ret;
1832 }
1833
1834 static void __devexit
1835 qla2x00_remove_one(struct pci_dev *pdev)
1836 {
1837         scsi_qla_host_t *ha;
1838
1839         ha = pci_get_drvdata(pdev);
1840
1841         qla2x00_free_sysfs_attr(ha);
1842
1843         fc_remove_host(ha->host);
1844
1845         scsi_remove_host(ha->host);
1846
1847         qla2x00_free_device(ha);
1848
1849         scsi_host_put(ha->host);
1850
1851         pci_disable_device(pdev);
1852         pci_set_drvdata(pdev, NULL);
1853 }
1854
1855 static void
1856 qla2x00_free_device(scsi_qla_host_t *ha)
1857 {
1858         /* Disable timer */
1859         if (ha->timer_active)
1860                 qla2x00_stop_timer(ha);
1861
1862         /* Kill the kernel thread for this host */
1863         if (ha->dpc_thread) {
1864                 struct task_struct *t = ha->dpc_thread;
1865
1866                 /*
1867                  * qla2xxx_wake_dpc checks for ->dpc_thread
1868                  * so we need to zero it out.
1869                  */
1870                 ha->dpc_thread = NULL;
1871                 kthread_stop(t);
1872         }
1873
1874         if (ha->eft)
1875                 qla2x00_trace_control(ha, TC_DISABLE, 0, 0);
1876
1877         ha->flags.online = 0;
1878
1879         /* Stop currently executing firmware. */
1880         qla2x00_try_to_stop_firmware(ha);
1881
1882         /* turn-off interrupts on the card */
1883         if (ha->interrupts_on)
1884                 ha->isp_ops->disable_intrs(ha);
1885
1886         qla2x00_mem_free(ha);
1887
1888         qla2x00_free_irqs(ha);
1889
1890         /* release io space registers  */
1891         if (ha->iobase)
1892                 iounmap(ha->iobase);
1893         pci_release_selected_regions(ha->pdev, ha->bars);
1894 }
1895
1896 static inline void
1897 qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport,
1898     int defer)
1899 {
1900         unsigned long flags;
1901         struct fc_rport *rport;
1902
1903         if (!fcport->rport)
1904                 return;
1905
1906         rport = fcport->rport;
1907         if (defer) {
1908                 spin_lock_irqsave(&fcport->rport_lock, flags);
1909                 fcport->drport = rport;
1910                 fcport->rport = NULL;
1911                 *(fc_port_t **)rport->dd_data = NULL;
1912                 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1913                 set_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags);
1914         } else {
1915                 spin_lock_irqsave(&fcport->rport_lock, flags);
1916                 fcport->rport = NULL;
1917                 *(fc_port_t **)rport->dd_data = NULL;
1918                 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1919                 fc_remote_port_delete(rport);
1920         }
1921 }
1922
1923 /*
1924  * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1925  *
1926  * Input: ha = adapter block pointer.  fcport = port structure pointer.
1927  *
1928  * Return: None.
1929  *
1930  * Context:
1931  */
1932 void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport,
1933     int do_login, int defer)
1934 {
1935         if (atomic_read(&fcport->state) == FCS_ONLINE &&
1936             ha->vp_idx == fcport->vp_idx)
1937                 qla2x00_schedule_rport_del(ha, fcport, defer);
1938
1939         /*
1940          * We may need to retry the login, so don't change the state of the
1941          * port but do the retries.
1942          */
1943         if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
1944                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1945
1946         if (!do_login)
1947                 return;
1948
1949         if (fcport->login_retry == 0) {
1950                 fcport->login_retry = ha->login_retry_count;
1951                 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
1952
1953                 DEBUG(printk("scsi(%ld): Port login retry: "
1954                     "%02x%02x%02x%02x%02x%02x%02x%02x, "
1955                     "id = 0x%04x retry cnt=%d\n",
1956                     ha->host_no,
1957                     fcport->port_name[0],
1958                     fcport->port_name[1],
1959                     fcport->port_name[2],
1960                     fcport->port_name[3],
1961                     fcport->port_name[4],
1962                     fcport->port_name[5],
1963                     fcport->port_name[6],
1964                     fcport->port_name[7],
1965                     fcport->loop_id,
1966                     fcport->login_retry));
1967         }
1968 }
1969
1970 /*
1971  * qla2x00_mark_all_devices_lost
1972  *      Updates fcport state when device goes offline.
1973  *
1974  * Input:
1975  *      ha = adapter block pointer.
1976  *      fcport = port structure pointer.
1977  *
1978  * Return:
1979  *      None.
1980  *
1981  * Context:
1982  */
1983 void
1984 qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer)
1985 {
1986         fc_port_t *fcport;
1987         scsi_qla_host_t *pha = to_qla_parent(ha);
1988
1989         list_for_each_entry(fcport, &pha->fcports, list) {
1990                 if (ha->vp_idx != 0 && ha->vp_idx != fcport->vp_idx)
1991                         continue;
1992                 /*
1993                  * No point in marking the device as lost, if the device is
1994                  * already DEAD.
1995                  */
1996                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
1997                         continue;
1998                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
1999                         if (defer)
2000                                 qla2x00_schedule_rport_del(ha, fcport, defer);
2001                         else if (ha->vp_idx == fcport->vp_idx)
2002                                 qla2x00_schedule_rport_del(ha, fcport, defer);
2003                 }
2004                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2005         }
2006
2007         if (defer)
2008                 qla2xxx_wake_dpc(ha);
2009 }
2010
2011 /*
2012 * qla2x00_mem_alloc
2013 *      Allocates adapter memory.
2014 *
2015 * Returns:
2016 *      0  = success.
2017 *      1  = failure.
2018 */
2019 uint8_t
2020 qla2x00_mem_alloc(scsi_qla_host_t *ha)
2021 {
2022         char    name[16];
2023         uint8_t   status = 1;
2024         int     retry= 10;
2025
2026         do {
2027                 /*
2028                  * This will loop only once if everything goes well, else some
2029                  * number of retries will be performed to get around a kernel
2030                  * bug where available mem is not allocated until after a
2031                  * little delay and a retry.
2032                  */
2033                 ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
2034                     (ha->request_q_length + 1) * sizeof(request_t),
2035                     &ha->request_dma, GFP_KERNEL);
2036                 if (ha->request_ring == NULL) {
2037                         qla_printk(KERN_WARNING, ha,
2038                             "Memory Allocation failed - request_ring\n");
2039
2040                         qla2x00_mem_free(ha);
2041                         msleep(100);
2042
2043                         continue;
2044                 }
2045
2046                 ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
2047                     (ha->response_q_length + 1) * sizeof(response_t),
2048                     &ha->response_dma, GFP_KERNEL);
2049                 if (ha->response_ring == NULL) {
2050                         qla_printk(KERN_WARNING, ha,
2051                             "Memory Allocation failed - response_ring\n");
2052
2053                         qla2x00_mem_free(ha);
2054                         msleep(100);
2055
2056                         continue;
2057                 }
2058
2059                 ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
2060                     &ha->gid_list_dma, GFP_KERNEL);
2061                 if (ha->gid_list == NULL) {
2062                         qla_printk(KERN_WARNING, ha,
2063                             "Memory Allocation failed - gid_list\n");
2064
2065                         qla2x00_mem_free(ha);
2066                         msleep(100);
2067
2068                         continue;
2069                 }
2070
2071                 /* get consistent memory allocated for init control block */
2072                 ha->init_cb = dma_alloc_coherent(&ha->pdev->dev,
2073                     ha->init_cb_size, &ha->init_cb_dma, GFP_KERNEL);
2074                 if (ha->init_cb == NULL) {
2075                         qla_printk(KERN_WARNING, ha,
2076                             "Memory Allocation failed - init_cb\n");
2077
2078                         qla2x00_mem_free(ha);
2079                         msleep(100);
2080
2081                         continue;
2082                 }
2083                 memset(ha->init_cb, 0, ha->init_cb_size);
2084
2085                 snprintf(name, sizeof(name), "%s_%ld", QLA2XXX_DRIVER_NAME,
2086                     ha->host_no);
2087                 ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2088                     DMA_POOL_SIZE, 8, 0);
2089                 if (ha->s_dma_pool == NULL) {
2090                         qla_printk(KERN_WARNING, ha,
2091                             "Memory Allocation failed - s_dma_pool\n");
2092
2093                         qla2x00_mem_free(ha);
2094                         msleep(100);
2095
2096                         continue;
2097                 }
2098
2099                 if (qla2x00_allocate_sp_pool(ha)) {
2100                         qla_printk(KERN_WARNING, ha,
2101                             "Memory Allocation failed - "
2102                             "qla2x00_allocate_sp_pool()\n");
2103
2104                         qla2x00_mem_free(ha);
2105                         msleep(100);
2106
2107                         continue;
2108                 }
2109
2110                 /* Allocate memory for SNS commands */
2111                 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2112                         /* Get consistent memory allocated for SNS commands */
2113                         ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
2114                             sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma,
2115                             GFP_KERNEL);
2116                         if (ha->sns_cmd == NULL) {
2117                                 /* error */
2118                                 qla_printk(KERN_WARNING, ha,
2119                                     "Memory Allocation failed - sns_cmd\n");
2120
2121                                 qla2x00_mem_free(ha);
2122                                 msleep(100);
2123
2124                                 continue;
2125                         }
2126                         memset(ha->sns_cmd, 0, sizeof(struct sns_cmd_pkt));
2127                 } else {
2128                         /* Get consistent memory allocated for MS IOCB */
2129                         ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2130                             &ha->ms_iocb_dma);
2131                         if (ha->ms_iocb == NULL) {
2132                                 /* error */
2133                                 qla_printk(KERN_WARNING, ha,
2134                                     "Memory Allocation failed - ms_iocb\n");
2135
2136                                 qla2x00_mem_free(ha);
2137                                 msleep(100);
2138
2139                                 continue;
2140                         }
2141                         memset(ha->ms_iocb, 0, sizeof(ms_iocb_entry_t));
2142
2143                         /*
2144                          * Get consistent memory allocated for CT SNS
2145                          * commands
2146                          */
2147                         ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2148                             sizeof(struct ct_sns_pkt), &ha->ct_sns_dma,
2149                             GFP_KERNEL);
2150                         if (ha->ct_sns == NULL) {
2151                                 /* error */
2152                                 qla_printk(KERN_WARNING, ha,
2153                                     "Memory Allocation failed - ct_sns\n");
2154
2155                                 qla2x00_mem_free(ha);
2156                                 msleep(100);
2157
2158                                 continue;
2159                         }
2160                         memset(ha->ct_sns, 0, sizeof(struct ct_sns_pkt));
2161
2162                         if (IS_FWI2_CAPABLE(ha)) {
2163                                 /*
2164                                  * Get consistent memory allocated for SFP
2165                                  * block.
2166                                  */
2167                                 ha->sfp_data = dma_pool_alloc(ha->s_dma_pool,
2168                                     GFP_KERNEL, &ha->sfp_data_dma);
2169                                 if (ha->sfp_data == NULL) {
2170                                         qla_printk(KERN_WARNING, ha,
2171                                             "Memory Allocation failed - "
2172                                             "sfp_data\n");
2173
2174                                         qla2x00_mem_free(ha);
2175                                         msleep(100);
2176
2177                                         continue;
2178                                 }
2179                                 memset(ha->sfp_data, 0, SFP_BLOCK_SIZE);
2180                         }
2181                 }
2182
2183                 /* Get memory for cached NVRAM */
2184                 ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
2185                 if (ha->nvram == NULL) {
2186                         /* error */
2187                         qla_printk(KERN_WARNING, ha,
2188                             "Memory Allocation failed - nvram cache\n");
2189
2190                         qla2x00_mem_free(ha);
2191                         msleep(100);
2192
2193                         continue;
2194                 }
2195
2196                 /* Done all allocations without any error. */
2197                 status = 0;
2198
2199         } while (retry-- && status != 0);
2200
2201         if (status) {
2202                 printk(KERN_WARNING
2203                         "%s(): **** FAILED ****\n", __func__);
2204         }
2205
2206         return(status);
2207 }
2208
2209 /*
2210 * qla2x00_mem_free
2211 *      Frees all adapter allocated memory.
2212 *
2213 * Input:
2214 *      ha = adapter block pointer.
2215 */
2216 void
2217 qla2x00_mem_free(scsi_qla_host_t *ha)
2218 {
2219         struct list_head        *fcpl, *fcptemp;
2220         fc_port_t       *fcport;
2221
2222         if (ha == NULL) {
2223                 /* error */
2224                 DEBUG2(printk("%s(): ERROR invalid ha pointer.\n", __func__));
2225                 return;
2226         }
2227
2228         /* free sp pool */
2229         qla2x00_free_sp_pool(ha);
2230
2231         if (ha->fw_dump) {
2232                 if (ha->eft)
2233                         dma_free_coherent(&ha->pdev->dev,
2234                             ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2235                 vfree(ha->fw_dump);
2236         }
2237
2238         if (ha->sns_cmd)
2239                 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2240                     ha->sns_cmd, ha->sns_cmd_dma);
2241
2242         if (ha->ct_sns)
2243                 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2244                     ha->ct_sns, ha->ct_sns_dma);
2245
2246         if (ha->sfp_data)
2247                 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2248
2249         if (ha->ms_iocb)
2250                 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2251
2252         if (ha->s_dma_pool)
2253                 dma_pool_destroy(ha->s_dma_pool);
2254
2255         if (ha->init_cb)
2256                 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
2257                     ha->init_cb, ha->init_cb_dma);
2258
2259         if (ha->gid_list)
2260                 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2261                     ha->gid_list_dma);
2262
2263         if (ha->response_ring)
2264                 dma_free_coherent(&ha->pdev->dev,
2265                     (ha->response_q_length + 1) * sizeof(response_t),
2266                     ha->response_ring, ha->response_dma);
2267
2268         if (ha->request_ring)
2269                 dma_free_coherent(&ha->pdev->dev,
2270                     (ha->request_q_length + 1) * sizeof(request_t),
2271                     ha->request_ring, ha->request_dma);
2272
2273         ha->eft = NULL;
2274         ha->eft_dma = 0;
2275         ha->sns_cmd = NULL;
2276         ha->sns_cmd_dma = 0;
2277         ha->ct_sns = NULL;
2278         ha->ct_sns_dma = 0;
2279         ha->ms_iocb = NULL;
2280         ha->ms_iocb_dma = 0;
2281         ha->init_cb = NULL;
2282         ha->init_cb_dma = 0;
2283
2284         ha->s_dma_pool = NULL;
2285
2286         ha->gid_list = NULL;
2287         ha->gid_list_dma = 0;
2288
2289         ha->response_ring = NULL;
2290         ha->response_dma = 0;
2291         ha->request_ring = NULL;
2292         ha->request_dma = 0;
2293
2294         list_for_each_safe(fcpl, fcptemp, &ha->fcports) {
2295                 fcport = list_entry(fcpl, fc_port_t, list);
2296
2297                 /* fc ports */
2298                 list_del_init(&fcport->list);
2299                 kfree(fcport);
2300         }
2301         INIT_LIST_HEAD(&ha->fcports);
2302
2303         ha->fw_dump = NULL;
2304         ha->fw_dumped = 0;
2305         ha->fw_dump_reading = 0;
2306
2307         vfree(ha->optrom_buffer);
2308         kfree(ha->nvram);
2309 }
2310
2311 /*
2312  * qla2x00_allocate_sp_pool
2313  *       This routine is called during initialization to allocate
2314  *       memory for local srb_t.
2315  *
2316  * Input:
2317  *       ha   = adapter block pointer.
2318  *
2319  * Context:
2320  *      Kernel context.
2321  */
2322 static int
2323 qla2x00_allocate_sp_pool(scsi_qla_host_t *ha)
2324 {
2325         int      rval;
2326
2327         rval = QLA_SUCCESS;
2328         ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
2329         if (ha->srb_mempool == NULL) {
2330                 qla_printk(KERN_INFO, ha, "Unable to allocate SRB mempool.\n");
2331                 rval = QLA_FUNCTION_FAILED;
2332         }
2333         return (rval);
2334 }
2335
2336 /*
2337  *  This routine frees all adapter allocated memory.
2338  *
2339  */
2340 static void
2341 qla2x00_free_sp_pool( scsi_qla_host_t *ha)
2342 {
2343         if (ha->srb_mempool) {
2344                 mempool_destroy(ha->srb_mempool);
2345                 ha->srb_mempool = NULL;
2346         }
2347 }
2348
2349 /**************************************************************************
2350 * qla2x00_do_dpc
2351 *   This kernel thread is a task that is schedule by the interrupt handler
2352 *   to perform the background processing for interrupts.
2353 *
2354 * Notes:
2355 * This task always run in the context of a kernel thread.  It
2356 * is kick-off by the driver's detect code and starts up
2357 * up one per adapter. It immediately goes to sleep and waits for
2358 * some fibre event.  When either the interrupt handler or
2359 * the timer routine detects a event it will one of the task
2360 * bits then wake us up.
2361 **************************************************************************/
2362 static int
2363 qla2x00_do_dpc(void *data)
2364 {
2365         int             rval;
2366         scsi_qla_host_t *ha;
2367         fc_port_t       *fcport;
2368         uint8_t         status;
2369         uint16_t        next_loopid;
2370
2371         ha = (scsi_qla_host_t *)data;
2372
2373         set_user_nice(current, -20);
2374
2375         while (!kthread_should_stop()) {
2376                 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2377
2378                 set_current_state(TASK_INTERRUPTIBLE);
2379                 schedule();
2380                 __set_current_state(TASK_RUNNING);
2381
2382                 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2383
2384                 /* Initialization not yet finished. Don't do anything yet. */
2385                 if (!ha->flags.init_done)
2386                         continue;
2387
2388                 DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no));
2389
2390                 ha->dpc_active = 1;
2391
2392                 if (ha->flags.mbox_busy) {
2393                         ha->dpc_active = 0;
2394                         continue;
2395                 }
2396
2397                 if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2398
2399                         DEBUG(printk("scsi(%ld): dpc: sched "
2400                             "qla2x00_abort_isp ha = %p\n",
2401                             ha->host_no, ha));
2402                         if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2403                             &ha->dpc_flags))) {
2404
2405                                 if (qla2x00_abort_isp(ha)) {
2406                                         /* failed. retry later */
2407                                         set_bit(ISP_ABORT_NEEDED,
2408                                             &ha->dpc_flags);
2409                                 }
2410                                 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2411                         }
2412                         DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2413                             ha->host_no));
2414                 }
2415
2416                 if (test_and_clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags))
2417                         qla2x00_update_fcports(ha);
2418
2419                 if (test_and_clear_bit(LOOP_RESET_NEEDED, &ha->dpc_flags)) {
2420                         DEBUG(printk("scsi(%ld): dpc: sched loop_reset()\n",
2421                             ha->host_no));
2422                         qla2x00_loop_reset(ha);
2423                 }
2424
2425                 if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) &&
2426                     (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) {
2427
2428                         DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2429                             ha->host_no));
2430
2431                         qla2x00_rst_aen(ha);
2432                         clear_bit(RESET_ACTIVE, &ha->dpc_flags);
2433                 }
2434
2435                 /* Retry each device up to login retry count */
2436                 if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2437                     !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) &&
2438                     atomic_read(&ha->loop_state) != LOOP_DOWN) {
2439
2440                         DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2441                             ha->host_no));
2442
2443                         next_loopid = 0;
2444                         list_for_each_entry(fcport, &ha->fcports, list) {
2445                                 /*
2446                                  * If the port is not ONLINE then try to login
2447                                  * to it if we haven't run out of retries.
2448                                  */
2449                                 if (atomic_read(&fcport->state) != FCS_ONLINE &&
2450                                     fcport->login_retry) {
2451
2452                                         if (fcport->flags & FCF_FABRIC_DEVICE) {
2453                                                 if (fcport->flags &
2454                                                     FCF_TAPE_PRESENT)
2455                                                         ha->isp_ops->fabric_logout(
2456                                                             ha, fcport->loop_id,
2457                                                             fcport->d_id.b.domain,
2458                                                             fcport->d_id.b.area,
2459                                                             fcport->d_id.b.al_pa);
2460                                                 status = qla2x00_fabric_login(
2461                                                     ha, fcport, &next_loopid);
2462                                         } else
2463                                                 status =
2464                                                     qla2x00_local_device_login(
2465                                                         ha, fcport);
2466
2467                                         fcport->login_retry--;
2468                                         if (status == QLA_SUCCESS) {
2469                                                 fcport->old_loop_id = fcport->loop_id;
2470
2471                                                 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2472                                                     ha->host_no, fcport->loop_id));
2473
2474                                                 qla2x00_update_fcport(ha,
2475                                                     fcport);
2476                                         } else if (status == 1) {
2477                                                 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
2478                                                 /* retry the login again */
2479                                                 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2480                                                     ha->host_no,
2481                                                     fcport->login_retry, fcport->loop_id));
2482                                         } else {
2483                                                 fcport->login_retry = 0;
2484                                         }
2485                                         if (fcport->login_retry == 0)
2486                                                 fcport->loop_id = FC_NO_LOOP_ID;
2487                                 }
2488                                 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2489                                         break;
2490                         }
2491                         DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2492                             ha->host_no));
2493                 }
2494
2495                 if ((test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags)) &&
2496                     atomic_read(&ha->loop_state) != LOOP_DOWN) {
2497
2498                         clear_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags);
2499                         DEBUG(printk("scsi(%ld): qla2x00_login_retry()\n",
2500                             ha->host_no));
2501
2502                         set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2503
2504                         DEBUG(printk("scsi(%ld): qla2x00_login_retry - end\n",
2505                             ha->host_no));
2506                 }
2507
2508                 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2509
2510                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2511                             ha->host_no));
2512
2513                         if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2514                             &ha->dpc_flags))) {
2515
2516                                 rval = qla2x00_loop_resync(ha);
2517
2518                                 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
2519                         }
2520
2521                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2522                             ha->host_no));
2523                 }
2524
2525                 if (test_and_clear_bit(FCPORT_RESCAN_NEEDED, &ha->dpc_flags)) {
2526
2527                         DEBUG(printk("scsi(%ld): Rescan flagged fcports...\n",
2528                             ha->host_no));
2529
2530                         qla2x00_rescan_fcports(ha);
2531
2532                         DEBUG(printk("scsi(%ld): Rescan flagged fcports..."
2533                             "end.\n",
2534                             ha->host_no));
2535                 }
2536
2537                 if (!ha->interrupts_on)
2538                         ha->isp_ops->enable_intrs(ha);
2539
2540                 if (test_and_clear_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags))
2541                         ha->isp_ops->beacon_blink(ha);
2542
2543                 qla2x00_do_dpc_all_vps(ha);
2544
2545                 ha->dpc_active = 0;
2546         } /* End of while(1) */
2547
2548         DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no));
2549
2550         /*
2551          * Make sure that nobody tries to wake us up again.
2552          */
2553         ha->dpc_active = 0;
2554
2555         return 0;
2556 }
2557
2558 void
2559 qla2xxx_wake_dpc(scsi_qla_host_t *ha)
2560 {
2561         if (ha->dpc_thread)
2562                 wake_up_process(ha->dpc_thread);
2563 }
2564
2565 /*
2566 *  qla2x00_rst_aen
2567 *      Processes asynchronous reset.
2568 *
2569 * Input:
2570 *      ha  = adapter block pointer.
2571 */
2572 static void
2573 qla2x00_rst_aen(scsi_qla_host_t *ha)
2574 {
2575         if (ha->flags.online && !ha->flags.reset_active &&
2576             !atomic_read(&ha->loop_down_timer) &&
2577             !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
2578                 do {
2579                         clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2580
2581                         /*
2582                          * Issue marker command only when we are going to start
2583                          * the I/O.
2584                          */
2585                         ha->marker_needed = 1;
2586                 } while (!atomic_read(&ha->loop_down_timer) &&
2587                     (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags)));
2588         }
2589 }
2590
2591 static void
2592 qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp)
2593 {
2594         struct scsi_cmnd *cmd = sp->cmd;
2595
2596         if (sp->flags & SRB_DMA_VALID) {
2597                 scsi_dma_unmap(cmd);
2598                 sp->flags &= ~SRB_DMA_VALID;
2599         }
2600         CMD_SP(cmd) = NULL;
2601 }
2602
2603 void
2604 qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp)
2605 {
2606         struct scsi_cmnd *cmd = sp->cmd;
2607
2608         qla2x00_sp_free_dma(ha, sp);
2609
2610         mempool_free(sp, ha->srb_mempool);
2611
2612         cmd->scsi_done(cmd);
2613 }
2614
2615 /**************************************************************************
2616 *   qla2x00_timer
2617 *
2618 * Description:
2619 *   One second timer
2620 *
2621 * Context: Interrupt
2622 ***************************************************************************/
2623 void
2624 qla2x00_timer(scsi_qla_host_t *ha)
2625 {
2626         unsigned long   cpu_flags = 0;
2627         fc_port_t       *fcport;
2628         int             start_dpc = 0;
2629         int             index;
2630         srb_t           *sp;
2631         int             t;
2632         scsi_qla_host_t *pha = to_qla_parent(ha);
2633
2634         /*
2635          * Ports - Port down timer.
2636          *
2637          * Whenever, a port is in the LOST state we start decrementing its port
2638          * down timer every second until it reaches zero. Once  it reaches zero
2639          * the port it marked DEAD.
2640          */
2641         t = 0;
2642         list_for_each_entry(fcport, &ha->fcports, list) {
2643                 if (fcport->port_type != FCT_TARGET)
2644                         continue;
2645
2646                 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2647
2648                         if (atomic_read(&fcport->port_down_timer) == 0)
2649                                 continue;
2650
2651                         if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
2652                                 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
2653
2654                         DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
2655                             "%d remaining\n",
2656                             ha->host_no,
2657                             t, atomic_read(&fcport->port_down_timer)));
2658                 }
2659                 t++;
2660         } /* End of for fcport  */
2661
2662
2663         /* Loop down handler. */
2664         if (atomic_read(&ha->loop_down_timer) > 0 &&
2665             !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) {
2666
2667                 if (atomic_read(&ha->loop_down_timer) ==
2668                     ha->loop_down_abort_time) {
2669
2670                         DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2671                             "queues before time expire\n",
2672                             ha->host_no));
2673
2674                         if (!IS_QLA2100(ha) && ha->link_down_timeout)
2675                                 atomic_set(&ha->loop_state, LOOP_DEAD);
2676
2677                         /* Schedule an ISP abort to return any tape commands. */
2678                         /* NPIV - scan physical port only */
2679                         if (!ha->parent) {
2680                                 spin_lock_irqsave(&ha->hardware_lock,
2681                                     cpu_flags);
2682                                 for (index = 1;
2683                                     index < MAX_OUTSTANDING_COMMANDS;
2684                                     index++) {
2685                                         fc_port_t *sfcp;
2686
2687                                         sp = ha->outstanding_cmds[index];
2688                                         if (!sp)
2689                                                 continue;
2690                                         sfcp = sp->fcport;
2691                                         if (!(sfcp->flags & FCF_TAPE_PRESENT))
2692                                                 continue;
2693
2694                                         set_bit(ISP_ABORT_NEEDED,
2695                                             &ha->dpc_flags);
2696                                         break;
2697                                 }
2698                                 spin_unlock_irqrestore(&ha->hardware_lock,
2699                                     cpu_flags);
2700                         }
2701                         set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags);
2702                         start_dpc++;
2703                 }
2704
2705                 /* if the loop has been down for 4 minutes, reinit adapter */
2706                 if (atomic_dec_and_test(&ha->loop_down_timer) != 0) {
2707                         DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2708                             "restarting queues.\n",
2709                             ha->host_no));
2710
2711                         set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags);
2712                         start_dpc++;
2713
2714                         if (!(ha->device_flags & DFLG_NO_CABLE)) {
2715                                 DEBUG(printk("scsi(%ld): Loop down - "
2716                                     "aborting ISP.\n",
2717                                     ha->host_no));
2718                                 qla_printk(KERN_WARNING, ha,
2719                                     "Loop down - aborting ISP.\n");
2720
2721                                 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2722                         }
2723                 }
2724                 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
2725                     ha->host_no,
2726                     atomic_read(&ha->loop_down_timer)));
2727         }
2728
2729         /* Check if beacon LED needs to be blinked */
2730         if (ha->beacon_blink_led == 1) {
2731                 set_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags);
2732                 start_dpc++;
2733         }
2734
2735         /* Schedule the DPC routine if needed */
2736         if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) ||
2737             test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) ||
2738             test_bit(LOOP_RESET_NEEDED, &ha->dpc_flags) ||
2739             test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags) ||
2740             start_dpc ||
2741             test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags) ||
2742             test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) ||
2743             test_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags) ||
2744             test_bit(VP_DPC_NEEDED, &ha->dpc_flags) ||
2745             test_bit(RELOGIN_NEEDED, &ha->dpc_flags)))
2746                 qla2xxx_wake_dpc(pha);
2747
2748         qla2x00_restart_timer(ha, WATCH_INTERVAL);
2749 }
2750
2751 /* XXX(hch): crude hack to emulate a down_timeout() */
2752 int
2753 qla2x00_down_timeout(struct semaphore *sema, unsigned long timeout)
2754 {
2755         const unsigned int step = 100; /* msecs */
2756         unsigned int iterations = jiffies_to_msecs(timeout)/100;
2757
2758         do {
2759                 if (!down_trylock(sema))
2760                         return 0;
2761                 if (msleep_interruptible(step))
2762                         break;
2763         } while (--iterations > 0);
2764
2765         return -ETIMEDOUT;
2766 }
2767
2768 /* Firmware interface routines. */
2769
2770 #define FW_BLOBS        6
2771 #define FW_ISP21XX      0
2772 #define FW_ISP22XX      1
2773 #define FW_ISP2300      2
2774 #define FW_ISP2322      3
2775 #define FW_ISP24XX      4
2776 #define FW_ISP25XX      5
2777
2778 #define FW_FILE_ISP21XX "ql2100_fw.bin"
2779 #define FW_FILE_ISP22XX "ql2200_fw.bin"
2780 #define FW_FILE_ISP2300 "ql2300_fw.bin"
2781 #define FW_FILE_ISP2322 "ql2322_fw.bin"
2782 #define FW_FILE_ISP24XX "ql2400_fw.bin"
2783 #define FW_FILE_ISP25XX "ql2500_fw.bin"
2784
2785 static DECLARE_MUTEX(qla_fw_lock);
2786
2787 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
2788         { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
2789         { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
2790         { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
2791         { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
2792         { .name = FW_FILE_ISP24XX, },
2793         { .name = FW_FILE_ISP25XX, },
2794 };
2795
2796 struct fw_blob *
2797 qla2x00_request_firmware(scsi_qla_host_t *ha)
2798 {
2799         struct fw_blob *blob;
2800
2801         blob = NULL;
2802         if (IS_QLA2100(ha)) {
2803                 blob = &qla_fw_blobs[FW_ISP21XX];
2804         } else if (IS_QLA2200(ha)) {
2805                 blob = &qla_fw_blobs[FW_ISP22XX];
2806         } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
2807                 blob = &qla_fw_blobs[FW_ISP2300];
2808         } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
2809                 blob = &qla_fw_blobs[FW_ISP2322];
2810         } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
2811                 blob = &qla_fw_blobs[FW_ISP24XX];
2812         } else if (IS_QLA25XX(ha)) {
2813                 blob = &qla_fw_blobs[FW_ISP25XX];
2814         }
2815
2816         down(&qla_fw_lock);
2817         if (blob->fw)
2818                 goto out;
2819
2820         if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
2821                 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
2822                     "(%s).\n", ha->host_no, blob->name));
2823                 blob->fw = NULL;
2824                 blob = NULL;
2825                 goto out;
2826         }
2827
2828 out:
2829         up(&qla_fw_lock);
2830         return blob;
2831 }
2832
2833 static void
2834 qla2x00_release_firmware(void)
2835 {
2836         int idx;
2837
2838         down(&qla_fw_lock);
2839         for (idx = 0; idx < FW_BLOBS; idx++)
2840                 if (qla_fw_blobs[idx].fw)
2841                         release_firmware(qla_fw_blobs[idx].fw);
2842         up(&qla_fw_lock);
2843 }
2844
2845 static pci_ers_result_t
2846 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
2847 {
2848         switch (state) {
2849         case pci_channel_io_normal:
2850                 return PCI_ERS_RESULT_CAN_RECOVER;
2851         case pci_channel_io_frozen:
2852                 pci_disable_device(pdev);
2853                 return PCI_ERS_RESULT_NEED_RESET;
2854         case pci_channel_io_perm_failure:
2855                 qla2x00_remove_one(pdev);
2856                 return PCI_ERS_RESULT_DISCONNECT;
2857         }
2858         return PCI_ERS_RESULT_NEED_RESET;
2859 }
2860
2861 static pci_ers_result_t
2862 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
2863 {
2864         int risc_paused = 0;
2865         uint32_t stat;
2866         unsigned long flags;
2867         scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2868         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2869         struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
2870
2871         spin_lock_irqsave(&ha->hardware_lock, flags);
2872         if (IS_QLA2100(ha) || IS_QLA2200(ha)){
2873                 stat = RD_REG_DWORD(&reg->hccr);
2874                 if (stat & HCCR_RISC_PAUSE)
2875                         risc_paused = 1;
2876         } else if (IS_QLA23XX(ha)) {
2877                 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
2878                 if (stat & HSR_RISC_PAUSED)
2879                         risc_paused = 1;
2880         } else if (IS_FWI2_CAPABLE(ha)) {
2881                 stat = RD_REG_DWORD(&reg24->host_status);
2882                 if (stat & HSRX_RISC_PAUSED)
2883                         risc_paused = 1;
2884         }
2885         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2886
2887         if (risc_paused) {
2888                 qla_printk(KERN_INFO, ha, "RISC paused -- mmio_enabled, "
2889                     "Dumping firmware!\n");
2890                 ha->isp_ops->fw_dump(ha, 0);
2891
2892                 return PCI_ERS_RESULT_NEED_RESET;
2893         } else
2894                 return PCI_ERS_RESULT_RECOVERED;
2895 }
2896
2897 static pci_ers_result_t
2898 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
2899 {
2900         pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
2901         scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2902
2903         if (pci_enable_device_bars(pdev, ha->bars)) {
2904                 qla_printk(KERN_WARNING, ha,
2905                     "Can't re-enable PCI device after reset.\n");
2906
2907                 return ret;
2908         }
2909         pci_set_master(pdev);
2910
2911         if (ha->isp_ops->pci_config(ha))
2912                 return ret;
2913
2914         set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2915         if (qla2x00_abort_isp(ha)== QLA_SUCCESS)
2916                 ret =  PCI_ERS_RESULT_RECOVERED;
2917         clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2918
2919         return ret;
2920 }
2921
2922 static void
2923 qla2xxx_pci_resume(struct pci_dev *pdev)
2924 {
2925         scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2926         int ret;
2927
2928         ret = qla2x00_wait_for_hba_online(ha);
2929         if (ret != QLA_SUCCESS) {
2930                 qla_printk(KERN_ERR, ha,
2931                     "the device failed to resume I/O "
2932                     "from slot/link_reset");
2933         }
2934         pci_cleanup_aer_uncorrect_error_status(pdev);
2935 }
2936
2937 static struct pci_error_handlers qla2xxx_err_handler = {
2938         .error_detected = qla2xxx_pci_error_detected,
2939         .mmio_enabled = qla2xxx_pci_mmio_enabled,
2940         .slot_reset = qla2xxx_pci_slot_reset,
2941         .resume = qla2xxx_pci_resume,
2942 };
2943
2944 static struct pci_device_id qla2xxx_pci_tbl[] = {
2945         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
2946         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
2947         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
2948         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
2949         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
2950         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
2951         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
2952         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
2953         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
2954         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
2955         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
2956         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
2957         { 0 },
2958 };
2959 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
2960
2961 static struct pci_driver qla2xxx_pci_driver = {
2962         .name           = QLA2XXX_DRIVER_NAME,
2963         .driver         = {
2964                 .owner          = THIS_MODULE,
2965         },
2966         .id_table       = qla2xxx_pci_tbl,
2967         .probe          = qla2x00_probe_one,
2968         .remove         = __devexit_p(qla2x00_remove_one),
2969         .err_handler    = &qla2xxx_err_handler,
2970 };
2971
2972 /**
2973  * qla2x00_module_init - Module initialization.
2974  **/
2975 static int __init
2976 qla2x00_module_init(void)
2977 {
2978         int ret = 0;
2979
2980         /* Allocate cache for SRBs. */
2981         srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
2982             SLAB_HWCACHE_ALIGN, NULL);
2983         if (srb_cachep == NULL) {
2984                 printk(KERN_ERR
2985                     "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2986                 return -ENOMEM;
2987         }
2988
2989         /* Derive version string. */
2990         strcpy(qla2x00_version_str, QLA2XXX_VERSION);
2991         if (ql2xextended_error_logging)
2992                 strcat(qla2x00_version_str, "-debug");
2993
2994         qla2xxx_transport_template =
2995             fc_attach_transport(&qla2xxx_transport_functions);
2996         if (!qla2xxx_transport_template) {
2997                 kmem_cache_destroy(srb_cachep);
2998                 return -ENODEV;
2999         }
3000         qla2xxx_transport_vport_template =
3001             fc_attach_transport(&qla2xxx_transport_vport_functions);
3002         if (!qla2xxx_transport_vport_template) {
3003                 kmem_cache_destroy(srb_cachep);
3004                 fc_release_transport(qla2xxx_transport_template);
3005                 return -ENODEV;
3006         }
3007
3008         printk(KERN_INFO "QLogic Fibre Channel HBA Driver\n");
3009         ret = pci_register_driver(&qla2xxx_pci_driver);
3010         if (ret) {
3011                 kmem_cache_destroy(srb_cachep);
3012                 fc_release_transport(qla2xxx_transport_template);
3013                 fc_release_transport(qla2xxx_transport_vport_template);
3014         }
3015         return ret;
3016 }
3017
3018 /**
3019  * qla2x00_module_exit - Module cleanup.
3020  **/
3021 static void __exit
3022 qla2x00_module_exit(void)
3023 {
3024         pci_unregister_driver(&qla2xxx_pci_driver);
3025         qla2x00_release_firmware();
3026         kmem_cache_destroy(srb_cachep);
3027         fc_release_transport(qla2xxx_transport_template);
3028         fc_release_transport(qla2xxx_transport_vport_template);
3029 }
3030
3031 module_init(qla2x00_module_init);
3032 module_exit(qla2x00_module_exit);
3033
3034 MODULE_AUTHOR("QLogic Corporation");
3035 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
3036 MODULE_LICENSE("GPL");
3037 MODULE_VERSION(QLA2XXX_VERSION);
3038 MODULE_FIRMWARE(FW_FILE_ISP21XX);
3039 MODULE_FIRMWARE(FW_FILE_ISP22XX);
3040 MODULE_FIRMWARE(FW_FILE_ISP2300);
3041 MODULE_FIRMWARE(FW_FILE_ISP2322);
3042 MODULE_FIRMWARE(FW_FILE_ISP24XX);