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

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