err.no Git - linux-2.6/blob - drivers/scsi/qla2xxx/qla_os.c

   1 /*
   2  * QLogic Fibre Channel HBA Driver
   3  * Copyright (c)  2003-2005 QLogic Corporation
   4  *
   5  * See LICENSE.qla2xxx for copyright and licensing details.
   6  */
   7 #include "qla_def.h"
   8
   9 #include <linux/moduleparam.h>
  10 #include <linux/vmalloc.h>
  11 #include <linux/delay.h>
  12 #include <linux/kthread.h>
  13
  14 #include <scsi/scsi_tcq.h>
  15 #include <scsi/scsicam.h>
  16 #include <scsi/scsi_transport.h>
  17 #include <scsi/scsi_transport_fc.h>
  18
  19 /*
  20  * Driver version
  21  */
  22 char qla2x00_version_str[40];
  23
  24 /*
  25  * SRB allocation cache
  26  */
  27 static struct kmem_cache *srb_cachep;
  28
  29 /*
  30  * Ioctl related information.
  31  */
  32 int num_hosts;
  33 int ql2xlogintimeout = 20;
  34 module_param(ql2xlogintimeout, int, S_IRUGO|S_IRUSR);
  35 MODULE_PARM_DESC(ql2xlogintimeout,
  36                 "Login timeout value in seconds.");
  37
  38 int qlport_down_retry;
  39 module_param(qlport_down_retry, int, S_IRUGO|S_IRUSR);
  40 MODULE_PARM_DESC(qlport_down_retry,
  41                 "Maximum number of command retries to a port that returns "
  42                 "a PORT-DOWN status.");
  43
  44 int ql2xplogiabsentdevice;
  45 module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
  46 MODULE_PARM_DESC(ql2xplogiabsentdevice,
  47                 "Option to enable PLOGI to devices that are not present after "
  48                 "a Fabric scan.  This is needed for several broken switches. "
  49                 "Default is 0 - no PLOGI. 1 - perfom PLOGI.");
  50
  51 int ql2xloginretrycount = 0;
  52 module_param(ql2xloginretrycount, int, S_IRUGO|S_IRUSR);
  53 MODULE_PARM_DESC(ql2xloginretrycount,
  54                 "Specify an alternate value for the NVRAM login retry count.");
  55
  56 int ql2xallocfwdump = 1;
  57 module_param(ql2xallocfwdump, int, S_IRUGO|S_IRUSR);
  58 MODULE_PARM_DESC(ql2xallocfwdump,
  59                 "Option to enable allocation of memory for a firmware dump "
  60                 "during HBA initialization.  Memory allocation requirements "
  61                 "vary by ISP type.  Default is 1 - allocate memory.");
  62
  63 int ql2xextended_error_logging;
  64 module_param(ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
  65 MODULE_PARM_DESC(ql2xextended_error_logging,
  66                 "Option to enable extended error logging, "
  67                 "Default is 0 - no logging. 1 - log errors.");
  68
  69 static void qla2x00_free_device(scsi_qla_host_t *);
  70
  71 static void qla2x00_config_dma_addressing(scsi_qla_host_t *ha);
  72
  73 int ql2xfdmienable;
  74 module_param(ql2xfdmienable, int, S_IRUGO|S_IRUSR);
  75 MODULE_PARM_DESC(ql2xfdmienable,
  76                 "Enables FDMI registratons "
  77                 "Default is 0 - no FDMI. 1 - perfom FDMI.");
  78
  79 #define MAX_Q_DEPTH    32
  80 static int ql2xmaxqdepth = MAX_Q_DEPTH;
  81 module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
  82 MODULE_PARM_DESC(ql2xmaxqdepth,
  83                 "Maximum queue depth to report for target devices.");
  84
  85 int ql2xqfullrampup = 120;
  86 module_param(ql2xqfullrampup, int, S_IRUGO|S_IWUSR);
  87 MODULE_PARM_DESC(ql2xqfullrampup,
  88                 "Number of seconds to wait to begin to ramp-up the queue "
  89                 "depth for a device after a queue-full condition has been "
  90                 "detected.  Default is 120 seconds.");
  91
  92 /*
  93  * SCSI host template entry points
  94  */
  95 static int qla2xxx_slave_configure(struct scsi_device * device);
  96 static int qla2xxx_slave_alloc(struct scsi_device *);
  97 static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
  98 static void qla2xxx_scan_start(struct Scsi_Host *);
  99 static void qla2xxx_slave_destroy(struct scsi_device *);
 100 static int qla2x00_queuecommand(struct scsi_cmnd *cmd,
 101                 void (*fn)(struct scsi_cmnd *));
 102 static int qla24xx_queuecommand(struct scsi_cmnd *cmd,
 103                 void (*fn)(struct scsi_cmnd *));
 104 static int qla2xxx_eh_abort(struct scsi_cmnd *);
 105 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
 106 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
 107 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
 108 static int qla2x00_device_reset(scsi_qla_host_t *, fc_port_t *);
 109
 110 static int qla2x00_change_queue_depth(struct scsi_device *, int);
 111 static int qla2x00_change_queue_type(struct scsi_device *, int);
 112
 113 static struct scsi_host_template qla2x00_driver_template = {
 114         .module                 = THIS_MODULE,
 115         .name                   = QLA2XXX_DRIVER_NAME,
 116         .queuecommand           = qla2x00_queuecommand,
 117
 118         .eh_abort_handler       = qla2xxx_eh_abort,
 119         .eh_device_reset_handler = qla2xxx_eh_device_reset,
 120         .eh_bus_reset_handler   = qla2xxx_eh_bus_reset,
 121         .eh_host_reset_handler  = qla2xxx_eh_host_reset,
 122
 123         .slave_configure        = qla2xxx_slave_configure,
 124
 125         .slave_alloc            = qla2xxx_slave_alloc,
 126         .slave_destroy          = qla2xxx_slave_destroy,
 127         .scan_finished          = qla2xxx_scan_finished,
 128         .scan_start             = qla2xxx_scan_start,
 129         .change_queue_depth     = qla2x00_change_queue_depth,
 130         .change_queue_type      = qla2x00_change_queue_type,
 131         .this_id                = -1,
 132         .cmd_per_lun            = 3,
 133         .use_clustering         = ENABLE_CLUSTERING,
 134         .sg_tablesize           = SG_ALL,
 135
 136         /*
 137          * The RISC allows for each command to transfer (2^32-1) bytes of data,
 138          * which equates to 0x800000 sectors.
 139          */
 140         .max_sectors            = 0xFFFF,
 141         .shost_attrs            = qla2x00_host_attrs,
 142 };
 143
 144 struct scsi_host_template qla24xx_driver_template = {
 145         .module                 = THIS_MODULE,
 146         .name                   = QLA2XXX_DRIVER_NAME,
 147         .queuecommand           = qla24xx_queuecommand,
 148
 149         .eh_abort_handler       = qla2xxx_eh_abort,
 150         .eh_device_reset_handler = qla2xxx_eh_device_reset,
 151         .eh_bus_reset_handler   = qla2xxx_eh_bus_reset,
 152         .eh_host_reset_handler  = qla2xxx_eh_host_reset,
 153
 154         .slave_configure        = qla2xxx_slave_configure,
 155
 156         .slave_alloc            = qla2xxx_slave_alloc,
 157         .slave_destroy          = qla2xxx_slave_destroy,
 158         .scan_finished          = qla2xxx_scan_finished,
 159         .scan_start             = qla2xxx_scan_start,
 160         .change_queue_depth     = qla2x00_change_queue_depth,
 161         .change_queue_type      = qla2x00_change_queue_type,
 162         .this_id                = -1,
 163         .cmd_per_lun            = 3,
 164         .use_clustering         = ENABLE_CLUSTERING,
 165         .sg_tablesize           = SG_ALL,
 166
 167         .max_sectors            = 0xFFFF,
 168         .shost_attrs            = qla2x00_host_attrs,
 169 };
 170
 171 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
 172 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
 173
 174 /* TODO Convert to inlines
 175  *
 176  * Timer routines
 177  */
 178
 179 __inline__ void
 180 qla2x00_start_timer(scsi_qla_host_t *ha, void *func, unsigned long interval)
 181 {
 182         init_timer(&ha->timer);
 183         ha->timer.expires = jiffies + interval * HZ;
 184         ha->timer.data = (unsigned long)ha;
 185         ha->timer.function = (void (*)(unsigned long))func;
 186         add_timer(&ha->timer);
 187         ha->timer_active = 1;
 188 }
 189
 190 static inline void
 191 qla2x00_restart_timer(scsi_qla_host_t *ha, unsigned long interval)
 192 {
 193         mod_timer(&ha->timer, jiffies + interval * HZ);
 194 }
 195
 196 static __inline__ void
 197 qla2x00_stop_timer(scsi_qla_host_t *ha)
 198 {
 199         del_timer_sync(&ha->timer);
 200         ha->timer_active = 0;
 201 }
 202
 203 static int qla2x00_do_dpc(void *data);
 204
 205 static void qla2x00_rst_aen(scsi_qla_host_t *);
 206
 207 static uint8_t qla2x00_mem_alloc(scsi_qla_host_t *);
 208 static void qla2x00_mem_free(scsi_qla_host_t *ha);
 209 static int qla2x00_allocate_sp_pool( scsi_qla_host_t *ha);
 210 static void qla2x00_free_sp_pool(scsi_qla_host_t *ha);
 211 static void qla2x00_sp_free_dma(scsi_qla_host_t *, srb_t *);
 212
 213 /* -------------------------------------------------------------------------- */
 214
 215 static char *
 216 qla2x00_pci_info_str(struct scsi_qla_host *ha, char *str)
 217 {
 218         static char *pci_bus_modes[] = {
 219                 "33", "66", "100", "133",
 220         };
 221         uint16_t pci_bus;
 222
 223         strcpy(str, "PCI");
 224         pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
 225         if (pci_bus) {
 226                 strcat(str, "-X (");
 227                 strcat(str, pci_bus_modes[pci_bus]);
 228         } else {
 229                 pci_bus = (ha->pci_attr & BIT_8) >> 8;
 230                 strcat(str, " (");
 231                 strcat(str, pci_bus_modes[pci_bus]);
 232         }
 233         strcat(str, " MHz)");
 234
 235         return (str);
 236 }
 237
 238 static char *
 239 qla24xx_pci_info_str(struct scsi_qla_host *ha, char *str)
 240 {
 241         static char *pci_bus_modes[] = { "33", "66", "100", "133", };
 242         uint32_t pci_bus;
 243         int pcie_reg;
 244
 245         pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
 246         if (pcie_reg) {
 247                 char lwstr[6];
 248                 uint16_t pcie_lstat, lspeed, lwidth;
 249
 250                 pcie_reg += 0x12;
 251                 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
 252                 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
 253                 lwidth = (pcie_lstat &
 254                     (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
 255
 256                 strcpy(str, "PCIe (");
 257                 if (lspeed == 1)
 258                         strcat(str, "2.5Gb/s ");
 259                 else if (lspeed == 2)
 260                         strcat(str, "5.0Gb/s ");
 261                 else
 262                         strcat(str, "<unknown> ");
 263                 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
 264                 strcat(str, lwstr);
 265
 266                 return str;
 267         }
 268
 269         strcpy(str, "PCI");
 270         pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
 271         if (pci_bus == 0 || pci_bus == 8) {
 272                 strcat(str, " (");
 273                 strcat(str, pci_bus_modes[pci_bus >> 3]);
 274         } else {
 275                 strcat(str, "-X ");
 276                 if (pci_bus & BIT_2)
 277                         strcat(str, "Mode 2");
 278                 else
 279                         strcat(str, "Mode 1");
 280                 strcat(str, " (");
 281                 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
 282         }
 283         strcat(str, " MHz)");
 284
 285         return str;
 286 }
 287
 288 static char *
 289 qla2x00_fw_version_str(struct scsi_qla_host *ha, char *str)
 290 {
 291         char un_str[10];
 292
 293         sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
 294             ha->fw_minor_version,
 295             ha->fw_subminor_version);
 296
 297         if (ha->fw_attributes & BIT_9) {
 298                 strcat(str, "FLX");
 299                 return (str);
 300         }
 301
 302         switch (ha->fw_attributes & 0xFF) {
 303         case 0x7:
 304                 strcat(str, "EF");
 305                 break;
 306         case 0x17:
 307                 strcat(str, "TP");
 308                 break;
 309         case 0x37:
 310                 strcat(str, "IP");
 311                 break;
 312         case 0x77:
 313                 strcat(str, "VI");
 314                 break;
 315         default:
 316                 sprintf(un_str, "(%x)", ha->fw_attributes);
 317                 strcat(str, un_str);
 318                 break;
 319         }
 320         if (ha->fw_attributes & 0x100)
 321                 strcat(str, "X");
 322
 323         return (str);
 324 }
 325
 326 static char *
 327 qla24xx_fw_version_str(struct scsi_qla_host *ha, char *str)
 328 {
 329         sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
 330             ha->fw_minor_version,
 331             ha->fw_subminor_version);
 332
 333         if (ha->fw_attributes & BIT_0)
 334                 strcat(str, "[Class 2] ");
 335         if (ha->fw_attributes & BIT_1)
 336                 strcat(str, "[IP] ");
 337         if (ha->fw_attributes & BIT_2)
 338                 strcat(str, "[Multi-ID] ");
 339         if (ha->fw_attributes & BIT_3)
 340                 strcat(str, "[SB-2] ");
 341         if (ha->fw_attributes & BIT_4)
 342                 strcat(str, "[T10 CRC] ");
 343         if (ha->fw_attributes & BIT_5)
 344                 strcat(str, "[VI] ");
 345         if (ha->fw_attributes & BIT_13)
 346                 strcat(str, "[Experimental]");
 347         return str;
 348 }
 349
 350 static inline srb_t *
 351 qla2x00_get_new_sp(scsi_qla_host_t *ha, fc_port_t *fcport,
 352     struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 353 {
 354         srb_t *sp;
 355
 356         sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
 357         if (!sp)
 358                 return sp;
 359
 360         sp->ha = ha;
 361         sp->fcport = fcport;
 362         sp->cmd = cmd;
 363         sp->flags = 0;
 364         CMD_SP(cmd) = (void *)sp;
 365         cmd->scsi_done = done;
 366
 367         return sp;
 368 }
 369
 370 static int
 371 qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 372 {
 373         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
 374         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 375         struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
 376         srb_t *sp;
 377         int rval;
 378
 379         if (unlikely(pci_channel_offline(ha->pdev))) {
 380                 cmd->result = DID_REQUEUE << 16;
 381                 goto qc_fail_command;
 382         }
 383
 384         rval = fc_remote_port_chkready(rport);
 385         if (rval) {
 386                 cmd->result = rval;
 387                 goto qc_fail_command;
 388         }
 389
 390         /* Close window on fcport/rport state-transitioning. */
 391         if (!*(fc_port_t **)rport->dd_data) {
 392                 cmd->result = DID_IMM_RETRY << 16;
 393                 goto qc_fail_command;
 394         }
 395
 396         if (atomic_read(&fcport->state) != FCS_ONLINE) {
 397                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
 398                     atomic_read(&ha->loop_state) == LOOP_DEAD) {
 399                         cmd->result = DID_NO_CONNECT << 16;
 400                         goto qc_fail_command;
 401                 }
 402                 goto qc_host_busy;
 403         }
 404
 405         spin_unlock_irq(ha->host->host_lock);
 406
 407         sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
 408         if (!sp)
 409                 goto qc_host_busy_lock;
 410
 411         rval = qla2x00_start_scsi(sp);
 412         if (rval != QLA_SUCCESS)
 413                 goto qc_host_busy_free_sp;
 414
 415         spin_lock_irq(ha->host->host_lock);
 416
 417         return 0;
 418
 419 qc_host_busy_free_sp:
 420         qla2x00_sp_free_dma(ha, sp);
 421         mempool_free(sp, ha->srb_mempool);
 422
 423 qc_host_busy_lock:
 424         spin_lock_irq(ha->host->host_lock);
 425
 426 qc_host_busy:
 427         return SCSI_MLQUEUE_HOST_BUSY;
 428
 429 qc_fail_command:
 430         done(cmd);
 431
 432         return 0;
 433 }
 434
 435
 436 static int
 437 qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 438 {
 439         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
 440         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 441         struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
 442         srb_t *sp;
 443         int rval;
 444         scsi_qla_host_t *pha = to_qla_parent(ha);
 445
 446         if (unlikely(pci_channel_offline(ha->pdev))) {
 447                 cmd->result = DID_REQUEUE << 16;
 448                 goto qc24_fail_command;
 449         }
 450
 451         rval = fc_remote_port_chkready(rport);
 452         if (rval) {
 453                 cmd->result = rval;
 454                 goto qc24_fail_command;
 455         }
 456
 457         /* Close window on fcport/rport state-transitioning. */
 458         if (!*(fc_port_t **)rport->dd_data) {
 459                 cmd->result = DID_IMM_RETRY << 16;
 460                 goto qc24_fail_command;
 461         }
 462
 463         if (atomic_read(&fcport->state) != FCS_ONLINE) {
 464                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
 465                     atomic_read(&pha->loop_state) == LOOP_DEAD) {
 466                         cmd->result = DID_NO_CONNECT << 16;
 467                         goto qc24_fail_command;
 468                 }
 469                 goto qc24_host_busy;
 470         }
 471
 472         spin_unlock_irq(ha->host->host_lock);
 473
 474         sp = qla2x00_get_new_sp(pha, fcport, cmd, done);
 475         if (!sp)
 476                 goto qc24_host_busy_lock;
 477
 478         rval = qla24xx_start_scsi(sp);
 479         if (rval != QLA_SUCCESS)
 480                 goto qc24_host_busy_free_sp;
 481
 482         spin_lock_irq(ha->host->host_lock);
 483
 484         return 0;
 485
 486 qc24_host_busy_free_sp:
 487         qla2x00_sp_free_dma(pha, sp);
 488         mempool_free(sp, pha->srb_mempool);
 489
 490 qc24_host_busy_lock:
 491         spin_lock_irq(ha->host->host_lock);
 492
 493 qc24_host_busy:
 494         return SCSI_MLQUEUE_HOST_BUSY;
 495
 496 qc24_fail_command:
 497         done(cmd);
 498
 499         return 0;
 500 }
 501
 502
 503 /*
 504  * qla2x00_eh_wait_on_command
 505  *    Waits for the command to be returned by the Firmware for some
 506  *    max time.
 507  *
 508  * Input:
 509  *    ha = actual ha whose done queue will contain the command
 510  *            returned by firmware.
 511  *    cmd = Scsi Command to wait on.
 512  *    flag = Abort/Reset(Bus or Device Reset)
 513  *
 514  * Return:
 515  *    Not Found : 0
 516  *    Found : 1
 517  */
 518 static int
 519 qla2x00_eh_wait_on_command(scsi_qla_host_t *ha, struct scsi_cmnd *cmd)
 520 {
 521 #define ABORT_POLLING_PERIOD    1000
 522 #define ABORT_WAIT_ITER         ((10 * 1000) / (ABORT_POLLING_PERIOD))
 523         unsigned long wait_iter = ABORT_WAIT_ITER;
 524         int ret = QLA_SUCCESS;
 525
 526         while (CMD_SP(cmd)) {
 527                 msleep(ABORT_POLLING_PERIOD);
 528
 529                 if (--wait_iter)
 530                         break;
 531         }
 532         if (CMD_SP(cmd))
 533                 ret = QLA_FUNCTION_FAILED;
 534
 535         return ret;
 536 }
 537
 538 /*
 539  * qla2x00_wait_for_hba_online
 540  *    Wait till the HBA is online after going through
 541  *    <= MAX_RETRIES_OF_ISP_ABORT  or
 542  *    finally HBA is disabled ie marked offline
 543  *
 544  * Input:
 545  *     ha - pointer to host adapter structure
 546  *
 547  * Note:
 548  *    Does context switching-Release SPIN_LOCK
 549  *    (if any) before calling this routine.
 550  *
 551  * Return:
 552  *    Success (Adapter is online) : 0
 553  *    Failed  (Adapter is offline/disabled) : 1
 554  */
 555 int
 556 qla2x00_wait_for_hba_online(scsi_qla_host_t *ha)
 557 {
 558         int             return_status;
 559         unsigned long   wait_online;
 560         scsi_qla_host_t *pha = to_qla_parent(ha);
 561
 562         wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 563         while (((test_bit(ISP_ABORT_NEEDED, &pha->dpc_flags)) ||
 564             test_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags) ||
 565             test_bit(ISP_ABORT_RETRY, &pha->dpc_flags) ||
 566             pha->dpc_active) && time_before(jiffies, wait_online)) {
 567
 568                 msleep(1000);
 569         }
 570         if (pha->flags.online)
 571                 return_status = QLA_SUCCESS;
 572         else
 573                 return_status = QLA_FUNCTION_FAILED;
 574
 575         DEBUG2(printk("%s return_status=%d\n",__func__,return_status));
 576
 577         return (return_status);
 578 }
 579
 580 /*
 581  * qla2x00_wait_for_loop_ready
 582  *    Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
 583  *    to be in LOOP_READY state.
 584  * Input:
 585  *     ha - pointer to host adapter structure
 586  *
 587  * Note:
 588  *    Does context switching-Release SPIN_LOCK
 589  *    (if any) before calling this routine.
 590  *
 591  *
 592  * Return:
 593  *    Success (LOOP_READY) : 0
 594  *    Failed  (LOOP_NOT_READY) : 1
 595  */
 596 static inline int
 597 qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha)
 598 {
 599         int      return_status = QLA_SUCCESS;
 600         unsigned long loop_timeout ;
 601         scsi_qla_host_t *pha = to_qla_parent(ha);
 602
 603         /* wait for 5 min at the max for loop to be ready */
 604         loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 605
 606         while ((!atomic_read(&pha->loop_down_timer) &&
 607             atomic_read(&pha->loop_state) == LOOP_DOWN) ||
 608             atomic_read(&pha->loop_state) != LOOP_READY) {
 609                 if (atomic_read(&pha->loop_state) == LOOP_DEAD) {
 610                         return_status = QLA_FUNCTION_FAILED;
 611                         break;
 612                 }
 613                 msleep(1000);
 614                 if (time_after_eq(jiffies, loop_timeout)) {
 615                         return_status = QLA_FUNCTION_FAILED;
 616                         break;
 617                 }
 618         }
 619         return (return_status);
 620 }
 621
 622 static void
 623 qla2x00_block_error_handler(struct scsi_cmnd *cmnd)
 624 {
 625         struct Scsi_Host *shost = cmnd->device->host;
 626         struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
 627         unsigned long flags;
 628
 629         spin_lock_irqsave(shost->host_lock, flags);
 630         while (rport->port_state == FC_PORTSTATE_BLOCKED) {
 631                 spin_unlock_irqrestore(shost->host_lock, flags);
 632                 msleep(1000);
 633                 spin_lock_irqsave(shost->host_lock, flags);
 634         }
 635         spin_unlock_irqrestore(shost->host_lock, flags);
 636         return;
 637 }
 638
 639 /**************************************************************************
 640 * qla2xxx_eh_abort
 641 *
 642 * Description:
 643 *    The abort function will abort the specified command.
 644 *
 645 * Input:
 646 *    cmd = Linux SCSI command packet to be aborted.
 647 *
 648 * Returns:
 649 *    Either SUCCESS or FAILED.
 650 *
 651 * Note:
 652 *    Only return FAILED if command not returned by firmware.
 653 **************************************************************************/
 654 static int
 655 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
 656 {
 657         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
 658         srb_t *sp;
 659         int ret, i;
 660         unsigned int id, lun;
 661         unsigned long serial;
 662         unsigned long flags;
 663         int wait = 0;
 664         scsi_qla_host_t *pha = to_qla_parent(ha);
 665
 666         qla2x00_block_error_handler(cmd);
 667
 668         if (!CMD_SP(cmd))
 669                 return SUCCESS;
 670
 671         ret = SUCCESS;
 672
 673         id = cmd->device->id;
 674         lun = cmd->device->lun;
 675         serial = cmd->serial_number;
 676
 677         /* Check active list for command command. */
 678         spin_lock_irqsave(&pha->hardware_lock, flags);
 679         for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
 680                 sp = pha->outstanding_cmds[i];
 681
 682                 if (sp == NULL)
 683                         continue;
 684
 685                 if (sp->cmd != cmd)
 686                         continue;
 687
 688                 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld.\n",
 689                     __func__, ha->host_no, sp, serial));
 690                 DEBUG3(qla2x00_print_scsi_cmd(cmd));
 691
 692                 spin_unlock_irqrestore(&pha->hardware_lock, flags);
 693                 if (ha->isp_ops->abort_command(ha, sp)) {
 694                         DEBUG2(printk("%s(%ld): abort_command "
 695                             "mbx failed.\n", __func__, ha->host_no));
 696                 } else {
 697                         DEBUG3(printk("%s(%ld): abort_command "
 698                             "mbx success.\n", __func__, ha->host_no));
 699                         wait = 1;
 700                 }
 701                 spin_lock_irqsave(&pha->hardware_lock, flags);
 702
 703                 break;
 704         }
 705         spin_unlock_irqrestore(&pha->hardware_lock, flags);
 706
 707         /* Wait for the command to be returned. */
 708         if (wait) {
 709                 if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) {
 710                         qla_printk(KERN_ERR, ha,
 711                             "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
 712                             "%x.\n", ha->host_no, id, lun, serial, ret);
 713                         ret = FAILED;
 714                 }
 715         }
 716
 717         qla_printk(KERN_INFO, ha,
 718             "scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n",
 719             ha->host_no, id, lun, wait, serial, ret);
 720
 721         return ret;
 722 }
 723
 724 /**************************************************************************
 725 * qla2x00_eh_wait_for_pending_target_commands
 726 *
 727 * Description:
 728 *    Waits for all the commands to come back from the specified target.
 729 *
 730 * Input:
 731 *    ha - pointer to scsi_qla_host structure.
 732 *    t  - target
 733 * Returns:
 734 *    Either SUCCESS or FAILED.
 735 *
 736 * Note:
 737 **************************************************************************/
 738 static int
 739 qla2x00_eh_wait_for_pending_target_commands(scsi_qla_host_t *ha, unsigned int t)
 740 {
 741         int     cnt;
 742         int     status;
 743         srb_t           *sp;
 744         struct scsi_cmnd *cmd;
 745         unsigned long flags;
 746         scsi_qla_host_t *pha = to_qla_parent(ha);
 747
 748         status = 0;
 749
 750         /*
 751          * Waiting for all commands for the designated target in the active
 752          * array
 753          */
 754         for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
 755                 spin_lock_irqsave(&pha->hardware_lock, flags);
 756                 sp = pha->outstanding_cmds[cnt];
 757                 if (sp) {
 758                         cmd = sp->cmd;
 759                         spin_unlock_irqrestore(&pha->hardware_lock, flags);
 760                         if (cmd->device->id == t &&
 761                             ha->vp_idx == sp->ha->vp_idx) {
 762                                 if (!qla2x00_eh_wait_on_command(ha, cmd)) {
 763                                         status = 1;
 764                                         break;
 765                                 }
 766                         }
 767                 } else {
 768                         spin_unlock_irqrestore(&pha->hardware_lock, flags);
 769                 }
 770         }
 771         return (status);
 772 }
 773
 774
 775 /**************************************************************************
 776 * qla2xxx_eh_device_reset
 777 *
 778 * Description:
 779 *    The device reset function will reset the target and abort any
 780 *    executing commands.
 781 *
 782 *    NOTE: The use of SP is undefined within this context.  Do *NOT*
 783 *          attempt to use this value, even if you determine it is
 784 *          non-null.
 785 *
 786 * Input:
 787 *    cmd = Linux SCSI command packet of the command that cause the
 788 *          bus device reset.
 789 *
 790 * Returns:
 791 *    SUCCESS/FAILURE (defined as macro in scsi.h).
 792 *
 793 **************************************************************************/
 794 static int
 795 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
 796 {
 797         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
 798         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 799         int ret = FAILED;
 800         unsigned int id, lun;
 801         unsigned long serial;
 802
 803         qla2x00_block_error_handler(cmd);
 804
 805         id = cmd->device->id;
 806         lun = cmd->device->lun;
 807         serial = cmd->serial_number;
 808
 809         if (!fcport)
 810                 return ret;
 811
 812         qla_printk(KERN_INFO, ha,
 813             "scsi(%ld:%d:%d): DEVICE RESET ISSUED.\n", ha->host_no, id, lun);
 814
 815         if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
 816                 goto eh_dev_reset_done;
 817
 818         if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
 819                 if (qla2x00_device_reset(ha, fcport) == 0)
 820                         ret = SUCCESS;
 821
 822 #if defined(LOGOUT_AFTER_DEVICE_RESET)
 823                 if (ret == SUCCESS) {
 824                         if (fcport->flags & FC_FABRIC_DEVICE) {
 825                                 ha->isp_ops->fabric_logout(ha, fcport->loop_id);
 826                                 qla2x00_mark_device_lost(ha, fcport, 0, 0);
 827                         }
 828                 }
 829 #endif
 830         } else {
 831                 DEBUG2(printk(KERN_INFO
 832                     "%s failed: loop not ready\n",__func__));
 833         }
 834
 835         if (ret == FAILED) {
 836                 DEBUG3(printk("%s(%ld): device reset failed\n",
 837                     __func__, ha->host_no));
 838                 qla_printk(KERN_INFO, ha, "%s: device reset failed\n",
 839                     __func__);
 840
 841                 goto eh_dev_reset_done;
 842         }
 843
 844         /* Flush outstanding commands. */
 845         if (qla2x00_eh_wait_for_pending_target_commands(ha, id))
 846                 ret = FAILED;
 847         if (ret == FAILED) {
 848                 DEBUG3(printk("%s(%ld): failed while waiting for commands\n",
 849                     __func__, ha->host_no));
 850                 qla_printk(KERN_INFO, ha,
 851                     "%s: failed while waiting for commands\n", __func__);
 852         } else
 853                 qla_printk(KERN_INFO, ha,
 854                     "scsi(%ld:%d:%d): DEVICE RESET SUCCEEDED.\n", ha->host_no,
 855                     id, lun);
 856  eh_dev_reset_done:
 857         return ret;
 858 }
 859
 860 /**************************************************************************
 861 * qla2x00_eh_wait_for_pending_commands
 862 *
 863 * Description:
 864 *    Waits for all the commands to come back from the specified host.
 865 *
 866 * Input:
 867 *    ha - pointer to scsi_qla_host structure.
 868 *
 869 * Returns:
 870 *    1 : SUCCESS
 871 *    0 : FAILED
 872 *
 873 * Note:
 874 **************************************************************************/
 875 static int
 876 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha)
 877 {
 878         int     cnt;
 879         int     status;
 880         srb_t           *sp;
 881         struct scsi_cmnd *cmd;
 882         unsigned long flags;
 883
 884         status = 1;
 885
 886         /*
 887          * Waiting for all commands for the designated target in the active
 888          * array
 889          */
 890         for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
 891                 spin_lock_irqsave(&ha->hardware_lock, flags);
 892                 sp = ha->outstanding_cmds[cnt];
 893                 if (sp) {
 894                         cmd = sp->cmd;
 895                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 896                         status = qla2x00_eh_wait_on_command(ha, cmd);
 897                         if (status == 0)
 898                                 break;
 899                 }
 900                 else {
 901                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 902                 }
 903         }
 904         return (status);
 905 }
 906
 907
 908 /**************************************************************************
 909 * qla2xxx_eh_bus_reset
 910 *
 911 * Description:
 912 *    The bus reset function will reset the bus and abort any executing
 913 *    commands.
 914 *
 915 * Input:
 916 *    cmd = Linux SCSI command packet of the command that cause the
 917 *          bus reset.
 918 *
 919 * Returns:
 920 *    SUCCESS/FAILURE (defined as macro in scsi.h).
 921 *
 922 **************************************************************************/
 923 static int
 924 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
 925 {
 926         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
 927         scsi_qla_host_t *pha = to_qla_parent(ha);
 928         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 929         int ret = FAILED;
 930         unsigned int id, lun;
 931         unsigned long serial;
 932
 933         qla2x00_block_error_handler(cmd);
 934
 935         id = cmd->device->id;
 936         lun = cmd->device->lun;
 937         serial = cmd->serial_number;
 938
 939         if (!fcport)
 940                 return ret;
 941
 942         qla_printk(KERN_INFO, ha,
 943             "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun);
 944
 945         if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) {
 946                 DEBUG2(printk("%s failed:board disabled\n",__func__));
 947                 goto eh_bus_reset_done;
 948         }
 949
 950         if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
 951                 if (qla2x00_loop_reset(ha) == QLA_SUCCESS)
 952                         ret = SUCCESS;
 953         }
 954         if (ret == FAILED)
 955                 goto eh_bus_reset_done;
 956
 957         /* Flush outstanding commands. */
 958         if (!qla2x00_eh_wait_for_pending_commands(pha))
 959                 ret = FAILED;
 960
 961 eh_bus_reset_done:
 962         qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
 963             (ret == FAILED) ? "failed" : "succeded");
 964
 965         return ret;
 966 }
 967
 968 /**************************************************************************
 969 * qla2xxx_eh_host_reset
 970 *
 971 * Description:
 972 *    The reset function will reset the Adapter.
 973 *
 974 * Input:
 975 *      cmd = Linux SCSI command packet of the command that cause the
 976 *            adapter reset.
 977 *
 978 * Returns:
 979 *      Either SUCCESS or FAILED.
 980 *
 981 * Note:
 982 **************************************************************************/
 983 static int
 984 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
 985 {
 986         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
 987         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 988         int ret = FAILED;
 989         unsigned int id, lun;
 990         unsigned long serial;
 991         scsi_qla_host_t *pha = to_qla_parent(ha);
 992
 993         qla2x00_block_error_handler(cmd);
 994
 995         id = cmd->device->id;
 996         lun = cmd->device->lun;
 997         serial = cmd->serial_number;
 998
 999         if (!fcport)
1000                 return ret;
1001
1002         qla_printk(KERN_INFO, ha,
1003             "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun);
1004
1005         if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
1006                 goto eh_host_reset_lock;
1007
1008         /*
1009          * Fixme-may be dpc thread is active and processing
1010          * loop_resync,so wait a while for it to
1011          * be completed and then issue big hammer.Otherwise
1012          * it may cause I/O failure as big hammer marks the
1013          * devices as lost kicking of the port_down_timer
1014          * while dpc is stuck for the mailbox to complete.
1015          */
1016         qla2x00_wait_for_loop_ready(ha);
1017         set_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
1018         if (qla2x00_abort_isp(pha)) {
1019                 clear_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
1020                 /* failed. schedule dpc to try */
1021                 set_bit(ISP_ABORT_NEEDED, &pha->dpc_flags);
1022
1023                 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
1024                         goto eh_host_reset_lock;
1025         }
1026         clear_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
1027
1028         /* Waiting for our command in done_queue to be returned to OS.*/
1029         if (qla2x00_eh_wait_for_pending_commands(pha))
1030                 ret = SUCCESS;
1031
1032         if (ha->parent)
1033                 qla2x00_vp_abort_isp(ha);
1034
1035 eh_host_reset_lock:
1036         qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
1037             (ret == FAILED) ? "failed" : "succeded");
1038
1039         return ret;
1040 }
1041
1042 /*
1043 * qla2x00_loop_reset
1044 *      Issue loop reset.
1045 *
1046 * Input:
1047 *      ha = adapter block pointer.
1048 *
1049 * Returns:
1050 *      0 = success
1051 */
1052 int
1053 qla2x00_loop_reset(scsi_qla_host_t *ha)
1054 {
1055         int ret;
1056         struct fc_port *fcport;
1057
1058         if (ha->flags.enable_lip_full_login) {
1059                 ret = qla2x00_full_login_lip(ha);
1060                 if (ret != QLA_SUCCESS) {
1061                         DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1062                             "full_login_lip=%d.\n", __func__, ha->host_no,
1063                             ret));
1064                 }
1065                 atomic_set(&ha->loop_state, LOOP_DOWN);
1066                 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
1067                 qla2x00_mark_all_devices_lost(ha, 0);
1068                 qla2x00_wait_for_loop_ready(ha);
1069         }
1070
1071         if (ha->flags.enable_lip_reset) {
1072                 ret = qla2x00_lip_reset(ha);
1073                 if (ret != QLA_SUCCESS) {
1074                         DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1075                             "lip_reset=%d.\n", __func__, ha->host_no, ret));
1076                 }
1077                 qla2x00_wait_for_loop_ready(ha);
1078         }
1079
1080         if (ha->flags.enable_target_reset) {
1081                 list_for_each_entry(fcport, &ha->fcports, list) {
1082                         if (fcport->port_type != FCT_TARGET)
1083                                 continue;
1084
1085                         ret = qla2x00_device_reset(ha, fcport);
1086                         if (ret != QLA_SUCCESS) {
1087                                 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1088                                     "target_reset=%d d_id=%x.\n", __func__,
1089                                     ha->host_no, ret, fcport->d_id.b24));
1090                         }
1091                 }
1092         }
1093
1094         /* Issue marker command only when we are going to start the I/O */
1095         ha->marker_needed = 1;
1096
1097         return QLA_SUCCESS;
1098 }
1099
1100 /*
1101  * qla2x00_device_reset
1102  *      Issue bus device reset message to the target.
1103  *
1104  * Input:
1105  *      ha = adapter block pointer.
1106  *      t = SCSI ID.
1107  *      TARGET_QUEUE_LOCK must be released.
1108  *      ADAPTER_STATE_LOCK must be released.
1109  *
1110  * Context:
1111  *      Kernel context.
1112  */
1113 static int
1114 qla2x00_device_reset(scsi_qla_host_t *ha, fc_port_t *reset_fcport)
1115 {
1116         /* Abort Target command will clear Reservation */
1117         return ha->isp_ops->abort_target(reset_fcport);
1118 }
1119
1120 void
1121 qla2x00_abort_all_cmds(scsi_qla_host_t *ha, int res)
1122 {
1123         int cnt;
1124         unsigned long flags;
1125         srb_t *sp;
1126
1127         spin_lock_irqsave(&ha->hardware_lock, flags);
1128         for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
1129                 sp = ha->outstanding_cmds[cnt];
1130                 if (sp) {
1131                         ha->outstanding_cmds[cnt] = NULL;
1132                         sp->flags = 0;
1133                         sp->cmd->result = res;
1134                         sp->cmd->host_scribble = (unsigned char *)NULL;
1135                         qla2x00_sp_compl(ha, sp);
1136                 }
1137         }
1138         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1139 }
1140
1141 static int
1142 qla2xxx_slave_alloc(struct scsi_device *sdev)
1143 {
1144         struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1145
1146         if (!rport || fc_remote_port_chkready(rport))
1147                 return -ENXIO;
1148
1149         sdev->hostdata = *(fc_port_t **)rport->dd_data;
1150
1151         return 0;
1152 }
1153
1154 static int
1155 qla2xxx_slave_configure(struct scsi_device *sdev)
1156 {
1157         scsi_qla_host_t *ha = shost_priv(sdev->host);
1158         struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1159
1160         if (sdev->tagged_supported)
1161                 scsi_activate_tcq(sdev, ha->max_q_depth);
1162         else
1163                 scsi_deactivate_tcq(sdev, ha->max_q_depth);
1164
1165         rport->dev_loss_tmo = ha->port_down_retry_count + 5;
1166
1167         return 0;
1168 }
1169
1170 static void
1171 qla2xxx_slave_destroy(struct scsi_device *sdev)
1172 {
1173         sdev->hostdata = NULL;
1174 }
1175
1176 static int
1177 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1178 {
1179         scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1180         return sdev->queue_depth;
1181 }
1182
1183 static int
1184 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1185 {
1186         if (sdev->tagged_supported) {
1187                 scsi_set_tag_type(sdev, tag_type);
1188                 if (tag_type)
1189                         scsi_activate_tcq(sdev, sdev->queue_depth);
1190                 else
1191                         scsi_deactivate_tcq(sdev, sdev->queue_depth);
1192         } else
1193                 tag_type = 0;
1194
1195         return tag_type;
1196 }
1197
1198 /**
1199  * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1200  * @ha: HA context
1201  *
1202  * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1203  * supported addressing method.
1204  */
1205 static void
1206 qla2x00_config_dma_addressing(scsi_qla_host_t *ha)
1207 {
1208         /* Assume a 32bit DMA mask. */
1209         ha->flags.enable_64bit_addressing = 0;
1210
1211         if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1212                 /* Any upper-dword bits set? */
1213                 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1214                     !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1215                         /* Ok, a 64bit DMA mask is applicable. */
1216                         ha->flags.enable_64bit_addressing = 1;
1217                         ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1218                         ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1219                         return;
1220                 }
1221         }
1222
1223         dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1224         pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
1225 }
1226
1227 static void
1228 qla2x00_enable_intrs(scsi_qla_host_t *ha)
1229 {
1230         unsigned long flags = 0;
1231         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1232
1233         spin_lock_irqsave(&ha->hardware_lock, flags);
1234         ha->interrupts_on = 1;
1235         /* enable risc and host interrupts */
1236         WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1237         RD_REG_WORD(&reg->ictrl);
1238         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1239
1240 }
1241
1242 static void
1243 qla2x00_disable_intrs(scsi_qla_host_t *ha)
1244 {
1245         unsigned long flags = 0;
1246         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1247
1248         spin_lock_irqsave(&ha->hardware_lock, flags);
1249         ha->interrupts_on = 0;
1250         /* disable risc and host interrupts */
1251         WRT_REG_WORD(&reg->ictrl, 0);
1252         RD_REG_WORD(&reg->ictrl);
1253         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1254 }
1255
1256 static void
1257 qla24xx_enable_intrs(scsi_qla_host_t *ha)
1258 {
1259         unsigned long flags = 0;
1260         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1261
1262         spin_lock_irqsave(&ha->hardware_lock, flags);
1263         ha->interrupts_on = 1;
1264         WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1265         RD_REG_DWORD(&reg->ictrl);
1266         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1267 }
1268
1269 static void
1270 qla24xx_disable_intrs(scsi_qla_host_t *ha)
1271 {
1272         unsigned long flags = 0;
1273         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1274
1275         spin_lock_irqsave(&ha->hardware_lock, flags);
1276         ha->interrupts_on = 0;
1277         WRT_REG_DWORD(&reg->ictrl, 0);
1278         RD_REG_DWORD(&reg->ictrl);
1279         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1280 }
1281
1282 static struct isp_operations qla2100_isp_ops = {
1283         .pci_config             = qla2100_pci_config,
1284         .reset_chip             = qla2x00_reset_chip,
1285         .chip_diag              = qla2x00_chip_diag,
1286         .config_rings           = qla2x00_config_rings,
1287         .reset_adapter          = qla2x00_reset_adapter,
1288         .nvram_config           = qla2x00_nvram_config,
1289         .update_fw_options      = qla2x00_update_fw_options,
1290         .load_risc              = qla2x00_load_risc,
1291         .pci_info_str           = qla2x00_pci_info_str,
1292         .fw_version_str         = qla2x00_fw_version_str,
1293         .intr_handler           = qla2100_intr_handler,
1294         .enable_intrs           = qla2x00_enable_intrs,
1295         .disable_intrs          = qla2x00_disable_intrs,
1296         .abort_command          = qla2x00_abort_command,
1297         .abort_target           = qla2x00_abort_target,
1298         .fabric_login           = qla2x00_login_fabric,
1299         .fabric_logout          = qla2x00_fabric_logout,
1300         .calc_req_entries       = qla2x00_calc_iocbs_32,
1301         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1302         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1303         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1304         .read_nvram             = qla2x00_read_nvram_data,
1305         .write_nvram            = qla2x00_write_nvram_data,
1306         .fw_dump                = qla2100_fw_dump,
1307         .beacon_on              = NULL,
1308         .beacon_off             = NULL,
1309         .beacon_blink           = NULL,
1310         .read_optrom            = qla2x00_read_optrom_data,
1311         .write_optrom           = qla2x00_write_optrom_data,
1312         .get_flash_version      = qla2x00_get_flash_version,
1313 };
1314
1315 static struct isp_operations qla2300_isp_ops = {
1316         .pci_config             = qla2300_pci_config,
1317         .reset_chip             = qla2x00_reset_chip,
1318         .chip_diag              = qla2x00_chip_diag,
1319         .config_rings           = qla2x00_config_rings,
1320         .reset_adapter          = qla2x00_reset_adapter,
1321         .nvram_config           = qla2x00_nvram_config,
1322         .update_fw_options      = qla2x00_update_fw_options,
1323         .load_risc              = qla2x00_load_risc,
1324         .pci_info_str           = qla2x00_pci_info_str,
1325         .fw_version_str         = qla2x00_fw_version_str,
1326         .intr_handler           = qla2300_intr_handler,
1327         .enable_intrs           = qla2x00_enable_intrs,
1328         .disable_intrs          = qla2x00_disable_intrs,
1329         .abort_command          = qla2x00_abort_command,
1330         .abort_target           = qla2x00_abort_target,
1331         .fabric_login           = qla2x00_login_fabric,
1332         .fabric_logout          = qla2x00_fabric_logout,
1333         .calc_req_entries       = qla2x00_calc_iocbs_32,
1334         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1335         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1336         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1337         .read_nvram             = qla2x00_read_nvram_data,
1338         .write_nvram            = qla2x00_write_nvram_data,
1339         .fw_dump                = qla2300_fw_dump,
1340         .beacon_on              = qla2x00_beacon_on,
1341         .beacon_off             = qla2x00_beacon_off,
1342         .beacon_blink           = qla2x00_beacon_blink,
1343         .read_optrom            = qla2x00_read_optrom_data,
1344         .write_optrom           = qla2x00_write_optrom_data,
1345         .get_flash_version      = qla2x00_get_flash_version,
1346 };
1347
1348 static struct isp_operations qla24xx_isp_ops = {
1349         .pci_config             = qla24xx_pci_config,
1350         .reset_chip             = qla24xx_reset_chip,
1351         .chip_diag              = qla24xx_chip_diag,
1352         .config_rings           = qla24xx_config_rings,
1353         .reset_adapter          = qla24xx_reset_adapter,
1354         .nvram_config           = qla24xx_nvram_config,
1355         .update_fw_options      = qla24xx_update_fw_options,
1356         .load_risc              = qla24xx_load_risc,
1357         .pci_info_str           = qla24xx_pci_info_str,
1358         .fw_version_str         = qla24xx_fw_version_str,
1359         .intr_handler           = qla24xx_intr_handler,
1360         .enable_intrs           = qla24xx_enable_intrs,
1361         .disable_intrs          = qla24xx_disable_intrs,
1362         .abort_command          = qla24xx_abort_command,
1363         .abort_target           = qla24xx_abort_target,
1364         .fabric_login           = qla24xx_login_fabric,
1365         .fabric_logout          = qla24xx_fabric_logout,
1366         .calc_req_entries       = NULL,
1367         .build_iocbs            = NULL,
1368         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1369         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1370         .read_nvram             = qla24xx_read_nvram_data,
1371         .write_nvram            = qla24xx_write_nvram_data,
1372         .fw_dump                = qla24xx_fw_dump,
1373         .beacon_on              = qla24xx_beacon_on,
1374         .beacon_off             = qla24xx_beacon_off,
1375         .beacon_blink           = qla24xx_beacon_blink,
1376         .read_optrom            = qla24xx_read_optrom_data,
1377         .write_optrom           = qla24xx_write_optrom_data,
1378         .get_flash_version      = qla24xx_get_flash_version,
1379 };
1380
1381 static struct isp_operations qla25xx_isp_ops = {
1382         .pci_config             = qla25xx_pci_config,
1383         .reset_chip             = qla24xx_reset_chip,
1384         .chip_diag              = qla24xx_chip_diag,
1385         .config_rings           = qla24xx_config_rings,
1386         .reset_adapter          = qla24xx_reset_adapter,
1387         .nvram_config           = qla24xx_nvram_config,
1388         .update_fw_options      = qla24xx_update_fw_options,
1389         .load_risc              = qla24xx_load_risc,
1390         .pci_info_str           = qla24xx_pci_info_str,
1391         .fw_version_str         = qla24xx_fw_version_str,
1392         .intr_handler           = qla24xx_intr_handler,
1393         .enable_intrs           = qla24xx_enable_intrs,
1394         .disable_intrs          = qla24xx_disable_intrs,
1395         .abort_command          = qla24xx_abort_command,
1396         .abort_target           = qla24xx_abort_target,
1397         .fabric_login           = qla24xx_login_fabric,
1398         .fabric_logout          = qla24xx_fabric_logout,
1399         .calc_req_entries       = NULL,
1400         .build_iocbs            = NULL,
1401         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1402         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1403         .read_nvram             = qla25xx_read_nvram_data,
1404         .write_nvram            = qla25xx_write_nvram_data,
1405         .fw_dump                = qla25xx_fw_dump,
1406         .beacon_on              = qla24xx_beacon_on,
1407         .beacon_off             = qla24xx_beacon_off,
1408         .beacon_blink           = qla24xx_beacon_blink,
1409         .read_optrom            = qla25xx_read_optrom_data,
1410         .write_optrom           = qla24xx_write_optrom_data,
1411         .get_flash_version      = qla24xx_get_flash_version,
1412 };
1413
1414 static inline void
1415 qla2x00_set_isp_flags(scsi_qla_host_t *ha)
1416 {
1417         ha->device_type = DT_EXTENDED_IDS;
1418         switch (ha->pdev->device) {
1419         case PCI_DEVICE_ID_QLOGIC_ISP2100:
1420                 ha->device_type |= DT_ISP2100;
1421                 ha->device_type &= ~DT_EXTENDED_IDS;
1422                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1423                 break;
1424         case PCI_DEVICE_ID_QLOGIC_ISP2200:
1425                 ha->device_type |= DT_ISP2200;
1426                 ha->device_type &= ~DT_EXTENDED_IDS;
1427                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1428                 break;
1429         case PCI_DEVICE_ID_QLOGIC_ISP2300:
1430                 ha->device_type |= DT_ISP2300;
1431                 ha->device_type |= DT_ZIO_SUPPORTED;
1432                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1433                 break;
1434         case PCI_DEVICE_ID_QLOGIC_ISP2312:
1435                 ha->device_type |= DT_ISP2312;
1436                 ha->device_type |= DT_ZIO_SUPPORTED;
1437                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1438                 break;
1439         case PCI_DEVICE_ID_QLOGIC_ISP2322:
1440                 ha->device_type |= DT_ISP2322;
1441                 ha->device_type |= DT_ZIO_SUPPORTED;
1442                 if (ha->pdev->subsystem_vendor == 0x1028 &&
1443                     ha->pdev->subsystem_device == 0x0170)
1444                         ha->device_type |= DT_OEM_001;
1445                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1446                 break;
1447         case PCI_DEVICE_ID_QLOGIC_ISP6312:
1448                 ha->device_type |= DT_ISP6312;
1449                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1450                 break;
1451         case PCI_DEVICE_ID_QLOGIC_ISP6322:
1452                 ha->device_type |= DT_ISP6322;
1453                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1454                 break;
1455         case PCI_DEVICE_ID_QLOGIC_ISP2422:
1456                 ha->device_type |= DT_ISP2422;
1457                 ha->device_type |= DT_ZIO_SUPPORTED;
1458                 ha->device_type |= DT_FWI2;
1459                 ha->device_type |= DT_IIDMA;
1460                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1461                 break;
1462         case PCI_DEVICE_ID_QLOGIC_ISP2432:
1463                 ha->device_type |= DT_ISP2432;
1464                 ha->device_type |= DT_ZIO_SUPPORTED;
1465                 ha->device_type |= DT_FWI2;
1466                 ha->device_type |= DT_IIDMA;
1467                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1468                 break;
1469         case PCI_DEVICE_ID_QLOGIC_ISP5422:
1470                 ha->device_type |= DT_ISP5422;
1471                 ha->device_type |= DT_FWI2;
1472                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1473                 break;
1474         case PCI_DEVICE_ID_QLOGIC_ISP5432:
1475                 ha->device_type |= DT_ISP5432;
1476                 ha->device_type |= DT_FWI2;
1477                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1478                 break;
1479         case PCI_DEVICE_ID_QLOGIC_ISP2532:
1480                 ha->device_type |= DT_ISP2532;
1481                 ha->device_type |= DT_ZIO_SUPPORTED;
1482                 ha->device_type |= DT_FWI2;
1483                 ha->device_type |= DT_IIDMA;
1484                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1485                 break;
1486         }
1487 }
1488
1489 static int
1490 qla2x00_iospace_config(scsi_qla_host_t *ha)
1491 {
1492         resource_size_t pio;
1493
1494         if (pci_request_selected_regions(ha->pdev, ha->bars,
1495             QLA2XXX_DRIVER_NAME)) {
1496                 qla_printk(KERN_WARNING, ha,
1497                     "Failed to reserve PIO/MMIO regions (%s)\n",
1498                     pci_name(ha->pdev));
1499
1500                 goto iospace_error_exit;
1501         }
1502         if (!(ha->bars & 1))
1503                 goto skip_pio;
1504
1505         /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1506         pio = pci_resource_start(ha->pdev, 0);
1507         if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
1508                 if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1509                         qla_printk(KERN_WARNING, ha,
1510                             "Invalid PCI I/O region size (%s)...\n",
1511                                 pci_name(ha->pdev));
1512                         pio = 0;
1513                 }
1514         } else {
1515                 qla_printk(KERN_WARNING, ha,
1516                     "region #0 not a PIO resource (%s)...\n",
1517                     pci_name(ha->pdev));
1518                 pio = 0;
1519         }
1520         ha->pio_address = pio;
1521
1522 skip_pio:
1523         /* Use MMIO operations for all accesses. */
1524         if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
1525                 qla_printk(KERN_ERR, ha,
1526                     "region #1 not an MMIO resource (%s), aborting\n",
1527                     pci_name(ha->pdev));
1528                 goto iospace_error_exit;
1529         }
1530         if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
1531                 qla_printk(KERN_ERR, ha,
1532                     "Invalid PCI mem region size (%s), aborting\n",
1533                         pci_name(ha->pdev));
1534                 goto iospace_error_exit;
1535         }
1536
1537         ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
1538         if (!ha->iobase) {
1539                 qla_printk(KERN_ERR, ha,
1540                     "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1541
1542                 goto iospace_error_exit;
1543         }
1544
1545         return (0);
1546
1547 iospace_error_exit:
1548         return (-ENOMEM);
1549 }
1550
1551 static void
1552 qla2xxx_scan_start(struct Scsi_Host *shost)
1553 {
1554         scsi_qla_host_t *ha = shost_priv(shost);
1555
1556         set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
1557         set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1558         set_bit(RSCN_UPDATE, &ha->dpc_flags);
1559 }
1560
1561 static int
1562 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1563 {
1564         scsi_qla_host_t *ha = shost_priv(shost);
1565
1566         if (!ha->host)
1567                 return 1;
1568         if (time > ha->loop_reset_delay * HZ)
1569                 return 1;
1570
1571         return atomic_read(&ha->loop_state) == LOOP_READY;
1572 }
1573
1574 /*
1575  * PCI driver interface
1576  */
1577 static int __devinit
1578 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1579 {
1580         int     ret = -ENODEV;
1581         device_reg_t __iomem *reg;
1582         struct Scsi_Host *host;
1583         scsi_qla_host_t *ha;
1584         unsigned long   flags = 0;
1585         char pci_info[30];
1586         char fw_str[30];
1587         struct scsi_host_template *sht;
1588         int bars, mem_only = 0;
1589
1590         bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
1591         sht = &qla2x00_driver_template;
1592         if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1593             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1594             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1595             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
1596             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532) {
1597                 bars = pci_select_bars(pdev, IORESOURCE_MEM);
1598                 sht = &qla24xx_driver_template;
1599                 mem_only = 1;
1600         }
1601
1602         if (mem_only) {
1603                 if (pci_enable_device_mem(pdev))
1604                         goto probe_out;
1605         } else {
1606                 if (pci_enable_device(pdev))
1607                         goto probe_out;
1608         }
1609
1610         if (pci_find_aer_capability(pdev))
1611                 if (pci_enable_pcie_error_reporting(pdev))
1612                         goto probe_out;
1613
1614         host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
1615         if (host == NULL) {
1616                 printk(KERN_WARNING
1617                     "qla2xxx: Couldn't allocate host from scsi layer!\n");
1618                 goto probe_disable_device;
1619         }
1620
1621         /* Clear our data area */
1622         ha = shost_priv(host);
1623         memset(ha, 0, sizeof(scsi_qla_host_t));
1624
1625         ha->pdev = pdev;
1626         ha->host = host;
1627         ha->host_no = host->host_no;
1628         sprintf(ha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, ha->host_no);
1629         ha->parent = NULL;
1630         ha->bars = bars;
1631         ha->mem_only = mem_only;
1632         spin_lock_init(&ha->hardware_lock);
1633
1634         /* Set ISP-type information. */
1635         qla2x00_set_isp_flags(ha);
1636
1637         /* Configure PCI I/O space */
1638         ret = qla2x00_iospace_config(ha);
1639         if (ret)
1640                 goto probe_failed;
1641
1642         qla_printk(KERN_INFO, ha,
1643             "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1644             ha->iobase);
1645
1646         ha->prev_topology = 0;
1647         ha->init_cb_size = sizeof(init_cb_t);
1648         ha->mgmt_svr_loop_id = MANAGEMENT_SERVER + ha->vp_idx;
1649         ha->link_data_rate = PORT_SPEED_UNKNOWN;
1650         ha->optrom_size = OPTROM_SIZE_2300;
1651
1652         ha->max_q_depth = MAX_Q_DEPTH;
1653         if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
1654                 ha->max_q_depth = ql2xmaxqdepth;
1655
1656         /* Assign ISP specific operations. */
1657         if (IS_QLA2100(ha)) {
1658                 host->max_id = MAX_TARGETS_2100;
1659                 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1660                 ha->request_q_length = REQUEST_ENTRY_CNT_2100;
1661                 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1662                 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1663                 host->sg_tablesize = 32;
1664                 ha->gid_list_info_size = 4;
1665                 ha->isp_ops = &qla2100_isp_ops;
1666         } else if (IS_QLA2200(ha)) {
1667                 host->max_id = MAX_TARGETS_2200;
1668                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1669                 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1670                 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1671                 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1672                 ha->gid_list_info_size = 4;
1673                 ha->isp_ops = &qla2100_isp_ops;
1674         } else if (IS_QLA23XX(ha)) {
1675                 host->max_id = MAX_TARGETS_2200;
1676                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1677                 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1678                 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1679                 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1680                 ha->gid_list_info_size = 6;
1681                 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1682                         ha->optrom_size = OPTROM_SIZE_2322;
1683                 ha->isp_ops = &qla2300_isp_ops;
1684         } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
1685                 host->max_id = MAX_TARGETS_2200;
1686                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1687                 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1688                 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1689                 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1690                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1691                 ha->mgmt_svr_loop_id = 10 + ha->vp_idx;
1692                 ha->gid_list_info_size = 8;
1693                 ha->optrom_size = OPTROM_SIZE_24XX;
1694                 ha->isp_ops = &qla24xx_isp_ops;
1695         } else if (IS_QLA25XX(ha)) {
1696                 host->max_id = MAX_TARGETS_2200;
1697                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1698                 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1699                 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1700                 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1701                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1702                 ha->mgmt_svr_loop_id = 10 + ha->vp_idx;
1703                 ha->gid_list_info_size = 8;
1704                 ha->optrom_size = OPTROM_SIZE_25XX;
1705                 ha->isp_ops = &qla25xx_isp_ops;
1706         }
1707         host->can_queue = ha->request_q_length + 128;
1708
1709         /* load the F/W, read paramaters, and init the H/W */
1710         ha->instance = num_hosts;
1711
1712         init_MUTEX(&ha->vport_sem);
1713         init_completion(&ha->mbx_cmd_comp);
1714         complete(&ha->mbx_cmd_comp);
1715         init_completion(&ha->mbx_intr_comp);
1716
1717         INIT_LIST_HEAD(&ha->list);
1718         INIT_LIST_HEAD(&ha->fcports);
1719         INIT_LIST_HEAD(&ha->vp_list);
1720
1721         set_bit(0, (unsigned long *) ha->vp_idx_map);
1722
1723         qla2x00_config_dma_addressing(ha);
1724         if (qla2x00_mem_alloc(ha)) {
1725                 qla_printk(KERN_WARNING, ha,
1726                     "[ERROR] Failed to allocate memory for adapter\n");
1727
1728                 ret = -ENOMEM;
1729                 goto probe_failed;
1730         }
1731
1732         if (qla2x00_initialize_adapter(ha)) {
1733                 qla_printk(KERN_WARNING, ha,
1734                     "Failed to initialize adapter\n");
1735
1736                 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1737                     "Adapter flags %x.\n",
1738                     ha->host_no, ha->device_flags));
1739
1740                 ret = -ENODEV;
1741                 goto probe_failed;
1742         }
1743
1744         /*
1745          * Startup the kernel thread for this host adapter
1746          */
1747         ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
1748                         "%s_dpc", ha->host_str);
1749         if (IS_ERR(ha->dpc_thread)) {
1750                 qla_printk(KERN_WARNING, ha,
1751                     "Unable to start DPC thread!\n");
1752                 ret = PTR_ERR(ha->dpc_thread);
1753                 goto probe_failed;
1754         }
1755
1756         host->this_id = 255;
1757         host->cmd_per_lun = 3;
1758         host->unique_id = ha->instance;
1759         host->max_cmd_len = MAX_CMDSZ;
1760         host->max_channel = MAX_BUSES - 1;
1761         host->max_lun = MAX_LUNS;
1762         host->transportt = qla2xxx_transport_template;
1763
1764         ret = qla2x00_request_irqs(ha);
1765         if (ret)
1766                 goto probe_failed;
1767
1768         /* Initialized the timer */
1769         qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL);
1770
1771         DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1772             ha->host_no, ha));
1773
1774         ha->isp_ops->disable_intrs(ha);
1775
1776         spin_lock_irqsave(&ha->hardware_lock, flags);
1777         reg = ha->iobase;
1778         if (IS_FWI2_CAPABLE(ha)) {
1779                 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_HOST_INT);
1780                 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_RISC_INT);
1781         } else {
1782                 WRT_REG_WORD(&reg->isp.semaphore, 0);
1783                 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_RISC_INT);
1784                 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_HOST_INT);
1785
1786                 /* Enable proper parity */
1787                 if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) {
1788                         if (IS_QLA2300(ha))
1789                                 /* SRAM parity */
1790                                 WRT_REG_WORD(&reg->isp.hccr,
1791                                     (HCCR_ENABLE_PARITY + 0x1));
1792                         else
1793                                 /* SRAM, Instruction RAM and GP RAM parity */
1794                                 WRT_REG_WORD(&reg->isp.hccr,
1795                                     (HCCR_ENABLE_PARITY + 0x7));
1796                 }
1797         }
1798         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1799
1800         ha->isp_ops->enable_intrs(ha);
1801
1802         pci_set_drvdata(pdev, ha);
1803
1804         ha->flags.init_done = 1;
1805         ha->flags.online = 1;
1806
1807         num_hosts++;
1808
1809         ret = scsi_add_host(host, &pdev->dev);
1810         if (ret)
1811                 goto probe_failed;
1812
1813         scsi_scan_host(host);
1814
1815         qla2x00_alloc_sysfs_attr(ha);
1816
1817         qla2x00_init_host_attr(ha);
1818
1819         qla2x00_dfs_setup(ha);
1820
1821         qla_printk(KERN_INFO, ha, "\n"
1822             " QLogic Fibre Channel HBA Driver: %s\n"
1823             "  QLogic %s - %s\n"
1824             "  ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1825             qla2x00_version_str, ha->model_number,
1826             ha->model_desc ? ha->model_desc: "", pdev->device,
1827             ha->isp_ops->pci_info_str(ha, pci_info), pci_name(pdev),
1828             ha->flags.enable_64bit_addressing ? '+': '-', ha->host_no,
1829             ha->isp_ops->fw_version_str(ha, fw_str));
1830
1831         return 0;
1832
1833 probe_failed:
1834         qla2x00_free_device(ha);
1835
1836         scsi_host_put(host);
1837
1838 probe_disable_device:
1839         pci_disable_device(pdev);
1840
1841 probe_out:
1842         return ret;
1843 }
1844
1845 static void
1846 qla2x00_remove_one(struct pci_dev *pdev)
1847 {
1848         scsi_qla_host_t *ha;
1849
1850         ha = pci_get_drvdata(pdev);
1851
1852         qla2x00_dfs_remove(ha);
1853
1854         qla2x00_free_sysfs_attr(ha);
1855
1856         fc_remove_host(ha->host);
1857
1858         scsi_remove_host(ha->host);
1859
1860         qla2x00_free_device(ha);
1861
1862         scsi_host_put(ha->host);
1863
1864         pci_disable_device(pdev);
1865         pci_set_drvdata(pdev, NULL);
1866 }
1867
1868 static void
1869 qla2x00_free_device(scsi_qla_host_t *ha)
1870 {
1871         qla2x00_abort_all_cmds(ha, DID_NO_CONNECT << 16);
1872
1873         /* Disable timer */
1874         if (ha->timer_active)
1875                 qla2x00_stop_timer(ha);
1876
1877         ha->flags.online = 0;
1878
1879         /* Kill the kernel thread for this host */
1880         if (ha->dpc_thread) {
1881                 struct task_struct *t = ha->dpc_thread;
1882
1883                 /*
1884                  * qla2xxx_wake_dpc checks for ->dpc_thread
1885                  * so we need to zero it out.
1886                  */
1887                 ha->dpc_thread = NULL;
1888                 kthread_stop(t);
1889         }
1890
1891         if (ha->flags.fce_enabled)
1892                 qla2x00_disable_fce_trace(ha, NULL, NULL);
1893
1894         if (ha->eft)
1895                 qla2x00_disable_eft_trace(ha);
1896
1897         /* Stop currently executing firmware. */
1898         qla2x00_try_to_stop_firmware(ha);
1899
1900         /* turn-off interrupts on the card */
1901         if (ha->interrupts_on)
1902                 ha->isp_ops->disable_intrs(ha);
1903
1904         qla2x00_mem_free(ha);
1905
1906         qla2x00_free_irqs(ha);
1907
1908         /* release io space registers  */
1909         if (ha->iobase)
1910                 iounmap(ha->iobase);
1911         pci_release_selected_regions(ha->pdev, ha->bars);
1912 }
1913
1914 static inline void
1915 qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport,
1916     int defer)
1917 {
1918         unsigned long flags;
1919         struct fc_rport *rport;
1920
1921         if (!fcport->rport)
1922                 return;
1923
1924         rport = fcport->rport;
1925         if (defer) {
1926                 spin_lock_irqsave(&fcport->rport_lock, flags);
1927                 fcport->drport = rport;
1928                 fcport->rport = NULL;
1929                 *(fc_port_t **)rport->dd_data = NULL;
1930                 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1931                 set_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags);
1932         } else {
1933                 spin_lock_irqsave(&fcport->rport_lock, flags);
1934                 fcport->rport = NULL;
1935                 *(fc_port_t **)rport->dd_data = NULL;
1936                 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1937                 fc_remote_port_delete(rport);
1938         }
1939 }
1940
1941 /*
1942  * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1943  *
1944  * Input: ha = adapter block pointer.  fcport = port structure pointer.
1945  *
1946  * Return: None.
1947  *
1948  * Context:
1949  */
1950 void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport,
1951     int do_login, int defer)
1952 {
1953         if (atomic_read(&fcport->state) == FCS_ONLINE &&
1954             ha->vp_idx == fcport->vp_idx)
1955                 qla2x00_schedule_rport_del(ha, fcport, defer);
1956
1957         /*
1958          * We may need to retry the login, so don't change the state of the
1959          * port but do the retries.
1960          */
1961         if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
1962                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1963
1964         if (!do_login)
1965                 return;
1966
1967         if (fcport->login_retry == 0) {
1968                 fcport->login_retry = ha->login_retry_count;
1969                 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
1970
1971                 DEBUG(printk("scsi(%ld): Port login retry: "
1972                     "%02x%02x%02x%02x%02x%02x%02x%02x, "
1973                     "id = 0x%04x retry cnt=%d\n",
1974                     ha->host_no,
1975                     fcport->port_name[0],
1976                     fcport->port_name[1],
1977                     fcport->port_name[2],
1978                     fcport->port_name[3],
1979                     fcport->port_name[4],
1980                     fcport->port_name[5],
1981                     fcport->port_name[6],
1982                     fcport->port_name[7],
1983                     fcport->loop_id,
1984                     fcport->login_retry));
1985         }
1986 }
1987
1988 /*
1989  * qla2x00_mark_all_devices_lost
1990  *      Updates fcport state when device goes offline.
1991  *
1992  * Input:
1993  *      ha = adapter block pointer.
1994  *      fcport = port structure pointer.
1995  *
1996  * Return:
1997  *      None.
1998  *
1999  * Context:
2000  */
2001 void
2002 qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer)
2003 {
2004         fc_port_t *fcport;
2005         scsi_qla_host_t *pha = to_qla_parent(ha);
2006
2007         list_for_each_entry(fcport, &pha->fcports, list) {
2008                 if (ha->vp_idx != 0 && ha->vp_idx != fcport->vp_idx)
2009                         continue;
2010                 /*
2011                  * No point in marking the device as lost, if the device is
2012                  * already DEAD.
2013                  */
2014                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
2015                         continue;
2016                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
2017                         if (defer)
2018                                 qla2x00_schedule_rport_del(ha, fcport, defer);
2019                         else if (ha->vp_idx == fcport->vp_idx)
2020                                 qla2x00_schedule_rport_del(ha, fcport, defer);
2021                 }
2022                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2023         }
2024
2025         if (defer)
2026                 qla2xxx_wake_dpc(ha);
2027 }
2028
2029 /*
2030 * qla2x00_mem_alloc
2031 *      Allocates adapter memory.
2032 *
2033 * Returns:
2034 *      0  = success.
2035 *      1  = failure.
2036 */
2037 static uint8_t
2038 qla2x00_mem_alloc(scsi_qla_host_t *ha)
2039 {
2040         char    name[16];
2041         uint8_t   status = 1;
2042         int     retry= 10;
2043
2044         do {
2045                 /*
2046                  * This will loop only once if everything goes well, else some
2047                  * number of retries will be performed to get around a kernel
2048                  * bug where available mem is not allocated until after a
2049                  * little delay and a retry.
2050                  */
2051                 ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
2052                     (ha->request_q_length + 1) * sizeof(request_t),
2053                     &ha->request_dma, GFP_KERNEL);
2054                 if (ha->request_ring == NULL) {
2055                         qla_printk(KERN_WARNING, ha,
2056                             "Memory Allocation failed - request_ring\n");
2057
2058                         qla2x00_mem_free(ha);
2059                         msleep(100);
2060
2061                         continue;
2062                 }
2063
2064                 ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
2065                     (ha->response_q_length + 1) * sizeof(response_t),
2066                     &ha->response_dma, GFP_KERNEL);
2067                 if (ha->response_ring == NULL) {
2068                         qla_printk(KERN_WARNING, ha,
2069                             "Memory Allocation failed - response_ring\n");
2070
2071                         qla2x00_mem_free(ha);
2072                         msleep(100);
2073
2074                         continue;
2075                 }
2076
2077                 ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
2078                     &ha->gid_list_dma, GFP_KERNEL);
2079                 if (ha->gid_list == NULL) {
2080                         qla_printk(KERN_WARNING, ha,
2081                             "Memory Allocation failed - gid_list\n");
2082
2083                         qla2x00_mem_free(ha);
2084                         msleep(100);
2085
2086                         continue;
2087                 }
2088
2089                 /* get consistent memory allocated for init control block */
2090                 ha->init_cb = dma_alloc_coherent(&ha->pdev->dev,
2091                     ha->init_cb_size, &ha->init_cb_dma, GFP_KERNEL);
2092                 if (ha->init_cb == NULL) {
2093                         qla_printk(KERN_WARNING, ha,
2094                             "Memory Allocation failed - init_cb\n");
2095
2096                         qla2x00_mem_free(ha);
2097                         msleep(100);
2098
2099                         continue;
2100                 }
2101                 memset(ha->init_cb, 0, ha->init_cb_size);
2102
2103                 snprintf(name, sizeof(name), "%s_%ld", QLA2XXX_DRIVER_NAME,
2104                     ha->host_no);
2105                 ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2106                     DMA_POOL_SIZE, 8, 0);
2107                 if (ha->s_dma_pool == NULL) {
2108                         qla_printk(KERN_WARNING, ha,
2109                             "Memory Allocation failed - s_dma_pool\n");
2110
2111                         qla2x00_mem_free(ha);
2112                         msleep(100);
2113
2114                         continue;
2115                 }
2116
2117                 if (qla2x00_allocate_sp_pool(ha)) {
2118                         qla_printk(KERN_WARNING, ha,
2119                             "Memory Allocation failed - "
2120                             "qla2x00_allocate_sp_pool()\n");
2121
2122                         qla2x00_mem_free(ha);
2123                         msleep(100);
2124
2125                         continue;
2126                 }
2127
2128                 /* Allocate memory for SNS commands */
2129                 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2130                         /* Get consistent memory allocated for SNS commands */
2131                         ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
2132                             sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma,
2133                             GFP_KERNEL);
2134                         if (ha->sns_cmd == NULL) {
2135                                 /* error */
2136                                 qla_printk(KERN_WARNING, ha,
2137                                     "Memory Allocation failed - sns_cmd\n");
2138
2139                                 qla2x00_mem_free(ha);
2140                                 msleep(100);
2141
2142                                 continue;
2143                         }
2144                         memset(ha->sns_cmd, 0, sizeof(struct sns_cmd_pkt));
2145                 } else {
2146                         /* Get consistent memory allocated for MS IOCB */
2147                         ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2148                             &ha->ms_iocb_dma);
2149                         if (ha->ms_iocb == NULL) {
2150                                 /* error */
2151                                 qla_printk(KERN_WARNING, ha,
2152                                     "Memory Allocation failed - ms_iocb\n");
2153
2154                                 qla2x00_mem_free(ha);
2155                                 msleep(100);
2156
2157                                 continue;
2158                         }
2159                         memset(ha->ms_iocb, 0, sizeof(ms_iocb_entry_t));
2160
2161                         /*
2162                          * Get consistent memory allocated for CT SNS
2163                          * commands
2164                          */
2165                         ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2166                             sizeof(struct ct_sns_pkt), &ha->ct_sns_dma,
2167                             GFP_KERNEL);
2168                         if (ha->ct_sns == NULL) {
2169                                 /* error */
2170                                 qla_printk(KERN_WARNING, ha,
2171                                     "Memory Allocation failed - ct_sns\n");
2172
2173                                 qla2x00_mem_free(ha);
2174                                 msleep(100);
2175
2176                                 continue;
2177                         }
2178                         memset(ha->ct_sns, 0, sizeof(struct ct_sns_pkt));
2179
2180                         if (IS_FWI2_CAPABLE(ha)) {
2181                                 /*
2182                                  * Get consistent memory allocated for SFP
2183                                  * block.
2184                                  */
2185                                 ha->sfp_data = dma_pool_alloc(ha->s_dma_pool,
2186                                     GFP_KERNEL, &ha->sfp_data_dma);
2187                                 if (ha->sfp_data == NULL) {
2188                                         qla_printk(KERN_WARNING, ha,
2189                                             "Memory Allocation failed - "
2190                                             "sfp_data\n");
2191
2192                                         qla2x00_mem_free(ha);
2193                                         msleep(100);
2194
2195                                         continue;
2196                                 }
2197                                 memset(ha->sfp_data, 0, SFP_BLOCK_SIZE);
2198                         }
2199                 }
2200
2201                 /* Get memory for cached NVRAM */
2202                 ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
2203                 if (ha->nvram == NULL) {
2204                         /* error */
2205                         qla_printk(KERN_WARNING, ha,
2206                             "Memory Allocation failed - nvram cache\n");
2207
2208                         qla2x00_mem_free(ha);
2209                         msleep(100);
2210
2211                         continue;
2212                 }
2213
2214                 /* Done all allocations without any error. */
2215                 status = 0;
2216
2217         } while (retry-- && status != 0);
2218
2219         if (status) {
2220                 printk(KERN_WARNING
2221                         "%s(): **** FAILED ****\n", __func__);
2222         }
2223
2224         return(status);
2225 }
2226
2227 /*
2228 * qla2x00_mem_free
2229 *      Frees all adapter allocated memory.
2230 *
2231 * Input:
2232 *      ha = adapter block pointer.
2233 */
2234 static void
2235 qla2x00_mem_free(scsi_qla_host_t *ha)
2236 {
2237         struct list_head        *fcpl, *fcptemp;
2238         fc_port_t       *fcport;
2239
2240         if (ha == NULL) {
2241                 /* error */
2242                 DEBUG2(printk("%s(): ERROR invalid ha pointer.\n", __func__));
2243                 return;
2244         }
2245
2246         /* free sp pool */
2247         qla2x00_free_sp_pool(ha);
2248
2249         if (ha->fce)
2250                 dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
2251                     ha->fce_dma);
2252
2253         if (ha->fw_dump) {
2254                 if (ha->eft)
2255                         dma_free_coherent(&ha->pdev->dev,
2256                             ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2257                 vfree(ha->fw_dump);
2258         }
2259
2260         if (ha->sns_cmd)
2261                 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2262                     ha->sns_cmd, ha->sns_cmd_dma);
2263
2264         if (ha->ct_sns)
2265                 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2266                     ha->ct_sns, ha->ct_sns_dma);
2267
2268         if (ha->sfp_data)
2269                 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2270
2271         if (ha->ms_iocb)
2272                 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2273
2274         if (ha->s_dma_pool)
2275                 dma_pool_destroy(ha->s_dma_pool);
2276
2277         if (ha->init_cb)
2278                 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
2279                     ha->init_cb, ha->init_cb_dma);
2280
2281         if (ha->gid_list)
2282                 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2283                     ha->gid_list_dma);
2284
2285         if (ha->response_ring)
2286                 dma_free_coherent(&ha->pdev->dev,
2287                     (ha->response_q_length + 1) * sizeof(response_t),
2288                     ha->response_ring, ha->response_dma);
2289
2290         if (ha->request_ring)
2291                 dma_free_coherent(&ha->pdev->dev,
2292                     (ha->request_q_length + 1) * sizeof(request_t),
2293                     ha->request_ring, ha->request_dma);
2294
2295         ha->eft = NULL;
2296         ha->eft_dma = 0;
2297         ha->sns_cmd = NULL;
2298         ha->sns_cmd_dma = 0;
2299         ha->ct_sns = NULL;
2300         ha->ct_sns_dma = 0;
2301         ha->ms_iocb = NULL;
2302         ha->ms_iocb_dma = 0;
2303         ha->init_cb = NULL;
2304         ha->init_cb_dma = 0;
2305
2306         ha->s_dma_pool = NULL;
2307
2308         ha->gid_list = NULL;
2309         ha->gid_list_dma = 0;
2310
2311         ha->response_ring = NULL;
2312         ha->response_dma = 0;
2313         ha->request_ring = NULL;
2314         ha->request_dma = 0;
2315
2316         list_for_each_safe(fcpl, fcptemp, &ha->fcports) {
2317                 fcport = list_entry(fcpl, fc_port_t, list);
2318
2319                 /* fc ports */
2320                 list_del_init(&fcport->list);
2321                 kfree(fcport);
2322         }
2323         INIT_LIST_HEAD(&ha->fcports);
2324
2325         ha->fw_dump = NULL;
2326         ha->fw_dumped = 0;
2327         ha->fw_dump_reading = 0;
2328
2329         vfree(ha->optrom_buffer);
2330         kfree(ha->nvram);
2331 }
2332
2333 /*
2334  * qla2x00_allocate_sp_pool
2335  *       This routine is called during initialization to allocate
2336  *       memory for local srb_t.
2337  *
2338  * Input:
2339  *       ha   = adapter block pointer.
2340  *
2341  * Context:
2342  *      Kernel context.
2343  */
2344 static int
2345 qla2x00_allocate_sp_pool(scsi_qla_host_t *ha)
2346 {
2347         int      rval;
2348
2349         rval = QLA_SUCCESS;
2350         ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
2351         if (ha->srb_mempool == NULL) {
2352                 qla_printk(KERN_INFO, ha, "Unable to allocate SRB mempool.\n");
2353                 rval = QLA_FUNCTION_FAILED;
2354         }
2355         return (rval);
2356 }
2357
2358 /*
2359  *  This routine frees all adapter allocated memory.
2360  *
2361  */
2362 static void
2363 qla2x00_free_sp_pool( scsi_qla_host_t *ha)
2364 {
2365         if (ha->srb_mempool) {
2366                 mempool_destroy(ha->srb_mempool);
2367                 ha->srb_mempool = NULL;
2368         }
2369 }
2370
2371 /**************************************************************************
2372 * qla2x00_do_dpc
2373 *   This kernel thread is a task that is schedule by the interrupt handler
2374 *   to perform the background processing for interrupts.
2375 *
2376 * Notes:
2377 * This task always run in the context of a kernel thread.  It
2378 * is kick-off by the driver's detect code and starts up
2379 * up one per adapter. It immediately goes to sleep and waits for
2380 * some fibre event.  When either the interrupt handler or
2381 * the timer routine detects a event it will one of the task
2382 * bits then wake us up.
2383 **************************************************************************/
2384 static int
2385 qla2x00_do_dpc(void *data)
2386 {
2387         int             rval;
2388         scsi_qla_host_t *ha;
2389         fc_port_t       *fcport;
2390         uint8_t         status;
2391         uint16_t        next_loopid;
2392
2393         ha = (scsi_qla_host_t *)data;
2394
2395         set_user_nice(current, -20);
2396
2397         while (!kthread_should_stop()) {
2398                 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2399
2400                 set_current_state(TASK_INTERRUPTIBLE);
2401                 schedule();
2402                 __set_current_state(TASK_RUNNING);
2403
2404                 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2405
2406                 /* Initialization not yet finished. Don't do anything yet. */
2407                 if (!ha->flags.init_done)
2408                         continue;
2409
2410                 DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no));
2411
2412                 ha->dpc_active = 1;
2413
2414                 if (ha->flags.mbox_busy) {
2415                         ha->dpc_active = 0;
2416                         continue;
2417                 }
2418
2419                 if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2420
2421                         DEBUG(printk("scsi(%ld): dpc: sched "
2422                             "qla2x00_abort_isp ha = %p\n",
2423                             ha->host_no, ha));
2424                         if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2425                             &ha->dpc_flags))) {
2426
2427                                 if (qla2x00_abort_isp(ha)) {
2428                                         /* failed. retry later */
2429                                         set_bit(ISP_ABORT_NEEDED,
2430                                             &ha->dpc_flags);
2431                                 }
2432                                 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2433                         }
2434                         DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2435                             ha->host_no));
2436                 }
2437
2438                 if (test_and_clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags))
2439                         qla2x00_update_fcports(ha);
2440
2441                 if (test_and_clear_bit(LOOP_RESET_NEEDED, &ha->dpc_flags)) {
2442                         DEBUG(printk("scsi(%ld): dpc: sched loop_reset()\n",
2443                             ha->host_no));
2444                         qla2x00_loop_reset(ha);
2445                 }
2446
2447                 if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) &&
2448                     (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) {
2449
2450                         DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2451                             ha->host_no));
2452
2453                         qla2x00_rst_aen(ha);
2454                         clear_bit(RESET_ACTIVE, &ha->dpc_flags);
2455                 }
2456
2457                 /* Retry each device up to login retry count */
2458                 if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2459                     !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) &&
2460                     atomic_read(&ha->loop_state) != LOOP_DOWN) {
2461
2462                         DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2463                             ha->host_no));
2464
2465                         next_loopid = 0;
2466                         list_for_each_entry(fcport, &ha->fcports, list) {
2467                                 /*
2468                                  * If the port is not ONLINE then try to login
2469                                  * to it if we haven't run out of retries.
2470                                  */
2471                                 if (atomic_read(&fcport->state) != FCS_ONLINE &&
2472                                     fcport->login_retry) {
2473
2474                                         if (fcport->flags & FCF_FABRIC_DEVICE) {
2475                                                 if (fcport->flags &
2476                                                     FCF_TAPE_PRESENT)
2477                                                         ha->isp_ops->fabric_logout(
2478                                                             ha, fcport->loop_id,
2479                                                             fcport->d_id.b.domain,
2480                                                             fcport->d_id.b.area,
2481                                                             fcport->d_id.b.al_pa);
2482                                                 status = qla2x00_fabric_login(
2483                                                     ha, fcport, &next_loopid);
2484                                         } else
2485                                                 status =
2486                                                     qla2x00_local_device_login(
2487                                                         ha, fcport);
2488
2489                                         fcport->login_retry--;
2490                                         if (status == QLA_SUCCESS) {
2491                                                 fcport->old_loop_id = fcport->loop_id;
2492
2493                                                 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2494                                                     ha->host_no, fcport->loop_id));
2495
2496                                                 qla2x00_update_fcport(ha,
2497                                                     fcport);
2498                                         } else if (status == 1) {
2499                                                 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
2500                                                 /* retry the login again */
2501                                                 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2502                                                     ha->host_no,
2503                                                     fcport->login_retry, fcport->loop_id));
2504                                         } else {
2505                                                 fcport->login_retry = 0;
2506                                         }
2507                                         if (fcport->login_retry == 0)
2508                                                 fcport->loop_id = FC_NO_LOOP_ID;
2509                                 }
2510                                 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2511                                         break;
2512                         }
2513                         DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2514                             ha->host_no));
2515                 }
2516
2517                 if ((test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags)) &&
2518                     atomic_read(&ha->loop_state) != LOOP_DOWN) {
2519
2520                         clear_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags);
2521                         DEBUG(printk("scsi(%ld): qla2x00_login_retry()\n",
2522                             ha->host_no));
2523
2524                         set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2525
2526                         DEBUG(printk("scsi(%ld): qla2x00_login_retry - end\n",
2527                             ha->host_no));
2528                 }
2529
2530                 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2531
2532                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2533                             ha->host_no));
2534
2535                         if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2536                             &ha->dpc_flags))) {
2537
2538                                 rval = qla2x00_loop_resync(ha);
2539
2540                                 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
2541                         }
2542
2543                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2544                             ha->host_no));
2545                 }
2546
2547                 if (test_and_clear_bit(FCPORT_RESCAN_NEEDED, &ha->dpc_flags)) {
2548
2549                         DEBUG(printk("scsi(%ld): Rescan flagged fcports...\n",
2550                             ha->host_no));
2551
2552                         qla2x00_rescan_fcports(ha);
2553
2554                         DEBUG(printk("scsi(%ld): Rescan flagged fcports..."
2555                             "end.\n",
2556                             ha->host_no));
2557                 }
2558
2559                 if (!ha->interrupts_on)
2560                         ha->isp_ops->enable_intrs(ha);
2561
2562                 if (test_and_clear_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags))
2563                         ha->isp_ops->beacon_blink(ha);
2564
2565                 qla2x00_do_dpc_all_vps(ha);
2566
2567                 ha->dpc_active = 0;
2568         } /* End of while(1) */
2569
2570         DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no));
2571
2572         /*
2573          * Make sure that nobody tries to wake us up again.
2574          */
2575         ha->dpc_active = 0;
2576
2577         return 0;
2578 }
2579
2580 void
2581 qla2xxx_wake_dpc(scsi_qla_host_t *ha)
2582 {
2583         if (ha->dpc_thread)
2584                 wake_up_process(ha->dpc_thread);
2585 }
2586
2587 /*
2588 *  qla2x00_rst_aen
2589 *      Processes asynchronous reset.
2590 *
2591 * Input:
2592 *      ha  = adapter block pointer.
2593 */
2594 static void
2595 qla2x00_rst_aen(scsi_qla_host_t *ha)
2596 {
2597         if (ha->flags.online && !ha->flags.reset_active &&
2598             !atomic_read(&ha->loop_down_timer) &&
2599             !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
2600                 do {
2601                         clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2602
2603                         /*
2604                          * Issue marker command only when we are going to start
2605                          * the I/O.
2606                          */
2607                         ha->marker_needed = 1;
2608                 } while (!atomic_read(&ha->loop_down_timer) &&
2609                     (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags)));
2610         }
2611 }
2612
2613 static void
2614 qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp)
2615 {
2616         struct scsi_cmnd *cmd = sp->cmd;
2617
2618         if (sp->flags & SRB_DMA_VALID) {
2619                 scsi_dma_unmap(cmd);
2620                 sp->flags &= ~SRB_DMA_VALID;
2621         }
2622         CMD_SP(cmd) = NULL;
2623 }
2624
2625 void
2626 qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp)
2627 {
2628         struct scsi_cmnd *cmd = sp->cmd;
2629
2630         qla2x00_sp_free_dma(ha, sp);
2631
2632         mempool_free(sp, ha->srb_mempool);
2633
2634         cmd->scsi_done(cmd);
2635 }
2636
2637 /**************************************************************************
2638 *   qla2x00_timer
2639 *
2640 * Description:
2641 *   One second timer
2642 *
2643 * Context: Interrupt
2644 ***************************************************************************/
2645 void
2646 qla2x00_timer(scsi_qla_host_t *ha)
2647 {
2648         unsigned long   cpu_flags = 0;
2649         fc_port_t       *fcport;
2650         int             start_dpc = 0;
2651         int             index;
2652         srb_t           *sp;
2653         int             t;
2654         scsi_qla_host_t *pha = to_qla_parent(ha);
2655
2656         /*
2657          * Ports - Port down timer.
2658          *
2659          * Whenever, a port is in the LOST state we start decrementing its port
2660          * down timer every second until it reaches zero. Once  it reaches zero
2661          * the port it marked DEAD.
2662          */
2663         t = 0;
2664         list_for_each_entry(fcport, &ha->fcports, list) {
2665                 if (fcport->port_type != FCT_TARGET)
2666                         continue;
2667
2668                 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2669
2670                         if (atomic_read(&fcport->port_down_timer) == 0)
2671                                 continue;
2672
2673                         if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
2674                                 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
2675
2676                         DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
2677                             "%d remaining\n",
2678                             ha->host_no,
2679                             t, atomic_read(&fcport->port_down_timer)));
2680                 }
2681                 t++;
2682         } /* End of for fcport  */
2683
2684
2685         /* Loop down handler. */
2686         if (atomic_read(&ha->loop_down_timer) > 0 &&
2687             !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) {
2688
2689                 if (atomic_read(&ha->loop_down_timer) ==
2690                     ha->loop_down_abort_time) {
2691
2692                         DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2693                             "queues before time expire\n",
2694                             ha->host_no));
2695
2696                         if (!IS_QLA2100(ha) && ha->link_down_timeout)
2697                                 atomic_set(&ha->loop_state, LOOP_DEAD);
2698
2699                         /* Schedule an ISP abort to return any tape commands. */
2700                         /* NPIV - scan physical port only */
2701                         if (!ha->parent) {
2702                                 spin_lock_irqsave(&ha->hardware_lock,
2703                                     cpu_flags);
2704                                 for (index = 1;
2705                                     index < MAX_OUTSTANDING_COMMANDS;
2706                                     index++) {
2707                                         fc_port_t *sfcp;
2708
2709                                         sp = ha->outstanding_cmds[index];
2710                                         if (!sp)
2711                                                 continue;
2712                                         sfcp = sp->fcport;
2713                                         if (!(sfcp->flags & FCF_TAPE_PRESENT))
2714                                                 continue;
2715
2716                                         set_bit(ISP_ABORT_NEEDED,
2717                                             &ha->dpc_flags);
2718                                         break;
2719                                 }
2720                                 spin_unlock_irqrestore(&ha->hardware_lock,
2721                                     cpu_flags);
2722                         }
2723                         set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags);
2724                         start_dpc++;
2725                 }
2726
2727                 /* if the loop has been down for 4 minutes, reinit adapter */
2728                 if (atomic_dec_and_test(&ha->loop_down_timer) != 0) {
2729                         DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2730                             "restarting queues.\n",
2731                             ha->host_no));
2732
2733                         set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags);
2734                         start_dpc++;
2735
2736                         if (!(ha->device_flags & DFLG_NO_CABLE)) {
2737                                 DEBUG(printk("scsi(%ld): Loop down - "
2738                                     "aborting ISP.\n",
2739                                     ha->host_no));
2740                                 qla_printk(KERN_WARNING, ha,
2741                                     "Loop down - aborting ISP.\n");
2742
2743                                 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2744                         }
2745                 }
2746                 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
2747                     ha->host_no,
2748                     atomic_read(&ha->loop_down_timer)));
2749         }
2750
2751         /* Check if beacon LED needs to be blinked */
2752         if (ha->beacon_blink_led == 1) {
2753                 set_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags);
2754                 start_dpc++;
2755         }
2756
2757         /* Schedule the DPC routine if needed */
2758         if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) ||
2759             test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) ||
2760             test_bit(LOOP_RESET_NEEDED, &ha->dpc_flags) ||
2761             test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags) ||
2762             start_dpc ||
2763             test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags) ||
2764             test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) ||
2765             test_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags) ||
2766             test_bit(VP_DPC_NEEDED, &ha->dpc_flags) ||
2767             test_bit(RELOGIN_NEEDED, &ha->dpc_flags)))
2768                 qla2xxx_wake_dpc(pha);
2769
2770         qla2x00_restart_timer(ha, WATCH_INTERVAL);
2771 }
2772
2773 /* Firmware interface routines. */
2774
2775 #define FW_BLOBS        6
2776 #define FW_ISP21XX      0
2777 #define FW_ISP22XX      1
2778 #define FW_ISP2300      2
2779 #define FW_ISP2322      3
2780 #define FW_ISP24XX      4
2781 #define FW_ISP25XX      5
2782
2783 #define FW_FILE_ISP21XX "ql2100_fw.bin"
2784 #define FW_FILE_ISP22XX "ql2200_fw.bin"
2785 #define FW_FILE_ISP2300 "ql2300_fw.bin"
2786 #define FW_FILE_ISP2322 "ql2322_fw.bin"
2787 #define FW_FILE_ISP24XX "ql2400_fw.bin"
2788 #define FW_FILE_ISP25XX "ql2500_fw.bin"
2789
2790 static DECLARE_MUTEX(qla_fw_lock);
2791
2792 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
2793         { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
2794         { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
2795         { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
2796         { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
2797         { .name = FW_FILE_ISP24XX, },
2798         { .name = FW_FILE_ISP25XX, },
2799 };
2800
2801 struct fw_blob *
2802 qla2x00_request_firmware(scsi_qla_host_t *ha)
2803 {
2804         struct fw_blob *blob;
2805
2806         blob = NULL;
2807         if (IS_QLA2100(ha)) {
2808                 blob = &qla_fw_blobs[FW_ISP21XX];
2809         } else if (IS_QLA2200(ha)) {
2810                 blob = &qla_fw_blobs[FW_ISP22XX];
2811         } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
2812                 blob = &qla_fw_blobs[FW_ISP2300];
2813         } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
2814                 blob = &qla_fw_blobs[FW_ISP2322];
2815         } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
2816                 blob = &qla_fw_blobs[FW_ISP24XX];
2817         } else if (IS_QLA25XX(ha)) {
2818                 blob = &qla_fw_blobs[FW_ISP25XX];
2819         }
2820
2821         down(&qla_fw_lock);
2822         if (blob->fw)
2823                 goto out;
2824
2825         if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
2826                 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
2827                     "(%s).\n", ha->host_no, blob->name));
2828                 blob->fw = NULL;
2829                 blob = NULL;
2830                 goto out;
2831         }
2832
2833 out:
2834         up(&qla_fw_lock);
2835         return blob;
2836 }
2837
2838 static void
2839 qla2x00_release_firmware(void)
2840 {
2841         int idx;
2842
2843         down(&qla_fw_lock);
2844         for (idx = 0; idx < FW_BLOBS; idx++)
2845                 if (qla_fw_blobs[idx].fw)
2846                         release_firmware(qla_fw_blobs[idx].fw);
2847         up(&qla_fw_lock);
2848 }
2849
2850 static pci_ers_result_t
2851 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
2852 {
2853         switch (state) {
2854         case pci_channel_io_normal:
2855                 return PCI_ERS_RESULT_CAN_RECOVER;
2856         case pci_channel_io_frozen:
2857                 pci_disable_device(pdev);
2858                 return PCI_ERS_RESULT_NEED_RESET;
2859         case pci_channel_io_perm_failure:
2860                 qla2x00_remove_one(pdev);
2861                 return PCI_ERS_RESULT_DISCONNECT;
2862         }
2863         return PCI_ERS_RESULT_NEED_RESET;
2864 }
2865
2866 static pci_ers_result_t
2867 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
2868 {
2869         int risc_paused = 0;
2870         uint32_t stat;
2871         unsigned long flags;
2872         scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2873         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2874         struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
2875
2876         spin_lock_irqsave(&ha->hardware_lock, flags);
2877         if (IS_QLA2100(ha) || IS_QLA2200(ha)){
2878                 stat = RD_REG_DWORD(&reg->hccr);
2879                 if (stat & HCCR_RISC_PAUSE)
2880                         risc_paused = 1;
2881         } else if (IS_QLA23XX(ha)) {
2882                 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
2883                 if (stat & HSR_RISC_PAUSED)
2884                         risc_paused = 1;
2885         } else if (IS_FWI2_CAPABLE(ha)) {
2886                 stat = RD_REG_DWORD(&reg24->host_status);
2887                 if (stat & HSRX_RISC_PAUSED)
2888                         risc_paused = 1;
2889         }
2890         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2891
2892         if (risc_paused) {
2893                 qla_printk(KERN_INFO, ha, "RISC paused -- mmio_enabled, "
2894                     "Dumping firmware!\n");
2895                 ha->isp_ops->fw_dump(ha, 0);
2896
2897                 return PCI_ERS_RESULT_NEED_RESET;
2898         } else
2899                 return PCI_ERS_RESULT_RECOVERED;
2900 }
2901
2902 static pci_ers_result_t
2903 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
2904 {
2905         pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
2906         scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2907         int rc;
2908
2909         if (ha->mem_only)
2910                 rc = pci_enable_device_mem(pdev);
2911         else
2912                 rc = pci_enable_device(pdev);
2913
2914         if (rc) {
2915                 qla_printk(KERN_WARNING, ha,
2916                     "Can't re-enable PCI device after reset.\n");
2917
2918                 return ret;
2919         }
2920         pci_set_master(pdev);
2921
2922         if (ha->isp_ops->pci_config(ha))
2923                 return ret;
2924
2925         set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2926         if (qla2x00_abort_isp(ha)== QLA_SUCCESS)
2927                 ret =  PCI_ERS_RESULT_RECOVERED;
2928         clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2929
2930         return ret;
2931 }
2932
2933 static void
2934 qla2xxx_pci_resume(struct pci_dev *pdev)
2935 {
2936         scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2937         int ret;
2938
2939         ret = qla2x00_wait_for_hba_online(ha);
2940         if (ret != QLA_SUCCESS) {
2941                 qla_printk(KERN_ERR, ha,
2942                     "the device failed to resume I/O "
2943                     "from slot/link_reset");
2944         }
2945         pci_cleanup_aer_uncorrect_error_status(pdev);
2946 }
2947
2948 static struct pci_error_handlers qla2xxx_err_handler = {
2949         .error_detected = qla2xxx_pci_error_detected,
2950         .mmio_enabled = qla2xxx_pci_mmio_enabled,
2951         .slot_reset = qla2xxx_pci_slot_reset,
2952         .resume = qla2xxx_pci_resume,
2953 };
2954
2955 static struct pci_device_id qla2xxx_pci_tbl[] = {
2956         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
2957         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
2958         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
2959         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
2960         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
2961         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
2962         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
2963         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
2964         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
2965         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
2966         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
2967         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
2968         { 0 },
2969 };
2970 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
2971
2972 static struct pci_driver qla2xxx_pci_driver = {
2973         .name           = QLA2XXX_DRIVER_NAME,
2974         .driver         = {
2975                 .owner          = THIS_MODULE,
2976         },
2977         .id_table       = qla2xxx_pci_tbl,
2978         .probe          = qla2x00_probe_one,
2979         .remove         = qla2x00_remove_one,
2980         .err_handler    = &qla2xxx_err_handler,
2981 };
2982
2983 /**
2984  * qla2x00_module_init - Module initialization.
2985  **/
2986 static int __init
2987 qla2x00_module_init(void)
2988 {
2989         int ret = 0;
2990
2991         /* Allocate cache for SRBs. */
2992         srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
2993             SLAB_HWCACHE_ALIGN, NULL);
2994         if (srb_cachep == NULL) {
2995                 printk(KERN_ERR
2996                     "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2997                 return -ENOMEM;
2998         }
2999
3000         /* Derive version string. */
3001         strcpy(qla2x00_version_str, QLA2XXX_VERSION);
3002         if (ql2xextended_error_logging)
3003                 strcat(qla2x00_version_str, "-debug");
3004
3005         qla2xxx_transport_template =
3006             fc_attach_transport(&qla2xxx_transport_functions);
3007         if (!qla2xxx_transport_template) {
3008                 kmem_cache_destroy(srb_cachep);
3009                 return -ENODEV;
3010         }
3011         qla2xxx_transport_vport_template =
3012             fc_attach_transport(&qla2xxx_transport_vport_functions);
3013         if (!qla2xxx_transport_vport_template) {
3014                 kmem_cache_destroy(srb_cachep);
3015                 fc_release_transport(qla2xxx_transport_template);
3016                 return -ENODEV;
3017         }
3018
3019         printk(KERN_INFO "QLogic Fibre Channel HBA Driver\n");
3020         ret = pci_register_driver(&qla2xxx_pci_driver);
3021         if (ret) {
3022                 kmem_cache_destroy(srb_cachep);
3023                 fc_release_transport(qla2xxx_transport_template);
3024                 fc_release_transport(qla2xxx_transport_vport_template);
3025         }
3026         return ret;
3027 }
3028
3029 /**
3030  * qla2x00_module_exit - Module cleanup.
3031  **/
3032 static void __exit
3033 qla2x00_module_exit(void)
3034 {
3035         pci_unregister_driver(&qla2xxx_pci_driver);
3036         qla2x00_release_firmware();
3037         kmem_cache_destroy(srb_cachep);
3038         fc_release_transport(qla2xxx_transport_template);
3039         fc_release_transport(qla2xxx_transport_vport_template);
3040 }
3041
3042 module_init(qla2x00_module_init);
3043 module_exit(qla2x00_module_exit);
3044
3045 MODULE_AUTHOR("QLogic Corporation");
3046 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
3047 MODULE_LICENSE("GPL");
3048 MODULE_VERSION(QLA2XXX_VERSION);
3049 MODULE_FIRMWARE(FW_FILE_ISP21XX);
3050 MODULE_FIRMWARE(FW_FILE_ISP22XX);
3051 MODULE_FIRMWARE(FW_FILE_ISP2300);
3052 MODULE_FIRMWARE(FW_FILE_ISP2322);
3053 MODULE_FIRMWARE(FW_FILE_ISP24XX);
3054 MODULE_FIRMWARE(FW_FILE_ISP25XX);