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