drivers/scsi/qla2xxx/qla_os.c

   1 /*
   2  *                  QLOGIC LINUX SOFTWARE
   3  *
   4  * QLogic ISP2x00 device driver for Linux 2.6.x
   5  * Copyright (C) 2003-2005 QLogic Corporation
   6  * (www.qlogic.com)
   7  *
   8  * This program is free software; you can redistribute it and/or modify it
   9  * under the terms of the GNU General Public License as published by the
  10  * Free Software Foundation; either version 2, or (at your option) any
  11  * later version.
  12  *
  13  * This program is distributed in the hope that it will be useful, but
  14  * WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * General Public License for more details.
  17  *
  18  */
  19 #include "qla_def.h"
  20
  21 #include <linux/moduleparam.h>
  22 #include <linux/vmalloc.h>
  23 #include <linux/smp_lock.h>
  24 #include <linux/delay.h>
  25
  26 #include <scsi/scsi_tcq.h>
  27 #include <scsi/scsicam.h>
  28 #include <scsi/scsi_transport.h>
  29 #include <scsi/scsi_transport_fc.h>
  30
  31 /*
  32  * Driver version
  33  */
  34 char qla2x00_version_str[40];
  35
  36 /*
  37  * SRB allocation cache
  38  */
  39 static kmem_cache_t *srb_cachep;
  40
  41 /*
  42  * Ioctl related information.
  43  */
  44 static int num_hosts;
  45
  46 int ql2xlogintimeout = 20;
  47 module_param(ql2xlogintimeout, int, S_IRUGO|S_IRUSR);
  48 MODULE_PARM_DESC(ql2xlogintimeout,
  49                 "Login timeout value in seconds.");
  50
  51 int qlport_down_retry = 30;
  52 module_param(qlport_down_retry, int, S_IRUGO|S_IRUSR);
  53 MODULE_PARM_DESC(qlport_down_retry,
  54                 "Maximum number of command retries to a port that returns"
  55                 "a PORT-DOWN status.");
  56
  57 int ql2xplogiabsentdevice;
  58 module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
  59 MODULE_PARM_DESC(ql2xplogiabsentdevice,
  60                 "Option to enable PLOGI to devices that are not present after "
  61                 "a Fabric scan.  This is needed for several broken switches."
  62                 "Default is 0 - no PLOGI. 1 - perfom PLOGI.");
  63
  64 int ql2xenablezio = 0;
  65 module_param(ql2xenablezio, int, S_IRUGO|S_IRUSR);
  66 MODULE_PARM_DESC(ql2xenablezio,
  67                 "Option to enable ZIO:If 1 then enable it otherwise"
  68                 " use the default set in the NVRAM."
  69                 " Default is 0 : disabled");
  70
  71 int ql2xintrdelaytimer = 10;
  72 module_param(ql2xintrdelaytimer, int, S_IRUGO|S_IRUSR);
  73 MODULE_PARM_DESC(ql2xintrdelaytimer,
  74                 "ZIO: Waiting time for Firmware before it generates an "
  75                 "interrupt to the host to notify completion of request.");
  76
  77 int ql2xloginretrycount = 0;
  78 module_param(ql2xloginretrycount, int, S_IRUGO|S_IRUSR);
  79 MODULE_PARM_DESC(ql2xloginretrycount,
  80                 "Specify an alternate value for the NVRAM login retry count.");
  81
  82 int ql2xfwloadbin;
  83 module_param(ql2xfwloadbin, int, S_IRUGO|S_IRUSR);
  84 MODULE_PARM_DESC(ql2xfwloadbin,
  85                 "Load ISP2xxx firmware image via hotplug.");
  86
  87 static void qla2x00_free_device(scsi_qla_host_t *);
  88
  89 static void qla2x00_config_dma_addressing(scsi_qla_host_t *ha);
  90
  91 /*
  92  * SCSI host template entry points
  93  */
  94 static int qla2xxx_slave_configure(struct scsi_device * device);
  95 static int qla2xxx_slave_alloc(struct scsi_device *);
  96 static void qla2xxx_slave_destroy(struct scsi_device *);
  97 static int qla2x00_queuecommand(struct scsi_cmnd *cmd,
  98                 void (*fn)(struct scsi_cmnd *));
  99 static int qla24xx_queuecommand(struct scsi_cmnd *cmd,
 100                 void (*fn)(struct scsi_cmnd *));
 101 static int qla2xxx_eh_abort(struct scsi_cmnd *);
 102 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
 103 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
 104 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
 105 static int qla2x00_loop_reset(scsi_qla_host_t *ha);
 106 static int qla2x00_device_reset(scsi_qla_host_t *, fc_port_t *);
 107
 108 static struct scsi_host_template qla2x00_driver_template = {
 109         .module                 = THIS_MODULE,
 110         .name                   = "qla2xxx",
 111         .queuecommand           = qla2x00_queuecommand,
 112
 113         .eh_abort_handler       = qla2xxx_eh_abort,
 114         .eh_device_reset_handler = qla2xxx_eh_device_reset,
 115         .eh_bus_reset_handler   = qla2xxx_eh_bus_reset,
 116         .eh_host_reset_handler  = qla2xxx_eh_host_reset,
 117
 118         .slave_configure        = qla2xxx_slave_configure,
 119
 120         .slave_alloc            = qla2xxx_slave_alloc,
 121         .slave_destroy          = qla2xxx_slave_destroy,
 122         .this_id                = -1,
 123         .cmd_per_lun            = 3,
 124         .use_clustering         = ENABLE_CLUSTERING,
 125         .sg_tablesize           = SG_ALL,
 126
 127         /*
 128          * The RISC allows for each command to transfer (2^32-1) bytes of data,
 129          * which equates to 0x800000 sectors.
 130          */
 131         .max_sectors            = 0xFFFF,
 132 };
 133
 134 static struct scsi_host_template qla24xx_driver_template = {
 135         .module                 = THIS_MODULE,
 136         .name                   = "qla2xxx",
 137         .queuecommand           = qla24xx_queuecommand,
 138
 139         .eh_abort_handler       = qla2xxx_eh_abort,
 140         .eh_device_reset_handler = qla2xxx_eh_device_reset,
 141         .eh_bus_reset_handler   = qla2xxx_eh_bus_reset,
 142         .eh_host_reset_handler  = qla2xxx_eh_host_reset,
 143
 144         .slave_configure        = qla2xxx_slave_configure,
 145
 146         .slave_alloc            = qla2xxx_slave_alloc,
 147         .slave_destroy          = qla2xxx_slave_destroy,
 148         .this_id                = -1,
 149         .cmd_per_lun            = 3,
 150         .use_clustering         = ENABLE_CLUSTERING,
 151         .sg_tablesize           = SG_ALL,
 152
 153         .max_sectors            = 0xFFFF,
 154 };
 155
 156 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
 157
 158 /* TODO Convert to inlines
 159  *
 160  * Timer routines
 161  */
 162 #define WATCH_INTERVAL          1       /* number of seconds */
 163
 164 static void qla2x00_timer(scsi_qla_host_t *);
 165
 166 static __inline__ void qla2x00_start_timer(scsi_qla_host_t *,
 167     void *, unsigned long);
 168 static __inline__ void qla2x00_restart_timer(scsi_qla_host_t *, unsigned long);
 169 static __inline__ void qla2x00_stop_timer(scsi_qla_host_t *);
 170
 171 static inline void
 172 qla2x00_start_timer(scsi_qla_host_t *ha, void *func, unsigned long interval)
 173 {
 174         init_timer(&ha->timer);
 175         ha->timer.expires = jiffies + interval * HZ;
 176         ha->timer.data = (unsigned long)ha;
 177         ha->timer.function = (void (*)(unsigned long))func;
 178         add_timer(&ha->timer);
 179         ha->timer_active = 1;
 180 }
 181
 182 static inline void
 183 qla2x00_restart_timer(scsi_qla_host_t *ha, unsigned long interval)
 184 {
 185         mod_timer(&ha->timer, jiffies + interval * HZ);
 186 }
 187
 188 static __inline__ void
 189 qla2x00_stop_timer(scsi_qla_host_t *ha)
 190 {
 191         del_timer_sync(&ha->timer);
 192         ha->timer_active = 0;
 193 }
 194
 195 static int qla2x00_do_dpc(void *data);
 196
 197 static void qla2x00_rst_aen(scsi_qla_host_t *);
 198
 199 static uint8_t qla2x00_mem_alloc(scsi_qla_host_t *);
 200 static void qla2x00_mem_free(scsi_qla_host_t *ha);
 201 static int qla2x00_allocate_sp_pool( scsi_qla_host_t *ha);
 202 static void qla2x00_free_sp_pool(scsi_qla_host_t *ha);
 203 static void qla2x00_sp_free_dma(scsi_qla_host_t *, srb_t *);
 204 void qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *);
 205
 206 /* -------------------------------------------------------------------------- */
 207
 208 static char *
 209 qla2x00_pci_info_str(struct scsi_qla_host *ha, char *str)
 210 {
 211         static char *pci_bus_modes[] = {
 212                 "33", "66", "100", "133",
 213         };
 214         uint16_t pci_bus;
 215
 216         strcpy(str, "PCI");
 217         pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
 218         if (pci_bus) {
 219                 strcat(str, "-X (");
 220                 strcat(str, pci_bus_modes[pci_bus]);
 221         } else {
 222                 pci_bus = (ha->pci_attr & BIT_8) >> 8;
 223                 strcat(str, " (");
 224                 strcat(str, pci_bus_modes[pci_bus]);
 225         }
 226         strcat(str, " MHz)");
 227
 228         return (str);
 229 }
 230
 231 static char *
 232 qla24xx_pci_info_str(struct scsi_qla_host *ha, char *str)
 233 {
 234         static char *pci_bus_modes[] = { "33", "66", "100", "133", };
 235         uint32_t pci_bus;
 236         int pcie_reg;
 237
 238         pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
 239         if (pcie_reg) {
 240                 char lwstr[6];
 241                 uint16_t pcie_lstat, lspeed, lwidth;
 242
 243                 pcie_reg += 0x12;
 244                 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
 245                 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
 246                 lwidth = (pcie_lstat &
 247                     (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
 248
 249                 strcpy(str, "PCIe (");
 250                 if (lspeed == 1)
 251                         strcat(str, "2.5Gb/s ");
 252                 else
 253                         strcat(str, "<unknown> ");
 254                 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
 255                 strcat(str, lwstr);
 256
 257                 return str;
 258         }
 259
 260         strcpy(str, "PCI");
 261         pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
 262         if (pci_bus == 0 || pci_bus == 8) {
 263                 strcat(str, " (");
 264                 strcat(str, pci_bus_modes[pci_bus >> 3]);
 265         } else {
 266                 strcat(str, "-X ");
 267                 if (pci_bus & BIT_2)
 268                         strcat(str, "Mode 2");
 269                 else
 270                         strcat(str, "Mode 1");
 271                 strcat(str, " (");
 272                 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
 273         }
 274         strcat(str, " MHz)");
 275
 276         return str;
 277 }
 278
 279 char *
 280 qla2x00_fw_version_str(struct scsi_qla_host *ha, char *str)
 281 {
 282         char un_str[10];
 283
 284         sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
 285             ha->fw_minor_version,
 286             ha->fw_subminor_version);
 287
 288         if (ha->fw_attributes & BIT_9) {
 289                 strcat(str, "FLX");
 290                 return (str);
 291         }
 292
 293         switch (ha->fw_attributes & 0xFF) {
 294         case 0x7:
 295                 strcat(str, "EF");
 296                 break;
 297         case 0x17:
 298                 strcat(str, "TP");
 299                 break;
 300         case 0x37:
 301                 strcat(str, "IP");
 302                 break;
 303         case 0x77:
 304                 strcat(str, "VI");
 305                 break;
 306         default:
 307                 sprintf(un_str, "(%x)", ha->fw_attributes);
 308                 strcat(str, un_str);
 309                 break;
 310         }
 311         if (ha->fw_attributes & 0x100)
 312                 strcat(str, "X");
 313
 314         return (str);
 315 }
 316
 317 char *
 318 qla24xx_fw_version_str(struct scsi_qla_host *ha, char *str)
 319 {
 320         sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
 321             ha->fw_minor_version,
 322             ha->fw_subminor_version);
 323
 324         if (ha->fw_attributes & BIT_0)
 325                 strcat(str, "[Class 2] ");
 326         if (ha->fw_attributes & BIT_1)
 327                 strcat(str, "[IP] ");
 328         if (ha->fw_attributes & BIT_2)
 329                 strcat(str, "[Multi-ID] ");
 330         if (ha->fw_attributes & BIT_13)
 331                 strcat(str, "[Experimental]");
 332         return str;
 333 }
 334
 335 static inline srb_t *
 336 qla2x00_get_new_sp(scsi_qla_host_t *ha, fc_port_t *fcport,
 337     struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 338 {
 339         srb_t *sp;
 340
 341         sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
 342         if (!sp)
 343                 return sp;
 344
 345         atomic_set(&sp->ref_count, 1);
 346         sp->ha = ha;
 347         sp->fcport = fcport;
 348         sp->cmd = cmd;
 349         sp->flags = 0;
 350         CMD_SP(cmd) = (void *)sp;
 351         cmd->scsi_done = done;
 352
 353         return sp;
 354 }
 355
 356 static int
 357 qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 358 {
 359         scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
 360         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 361         srb_t *sp;
 362         int rval;
 363
 364         if (!fcport) {
 365                 cmd->result = DID_NO_CONNECT << 16;
 366                 goto qc_fail_command;
 367         }
 368
 369         if (atomic_read(&fcport->state) != FCS_ONLINE) {
 370                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
 371                     atomic_read(&ha->loop_state) == LOOP_DEAD) {
 372                         cmd->result = DID_NO_CONNECT << 16;
 373                         goto qc_fail_command;
 374                 }
 375                 goto qc_host_busy;
 376         }
 377
 378         spin_unlock_irq(ha->host->host_lock);
 379
 380         sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
 381         if (!sp)
 382                 goto qc_host_busy_lock;
 383
 384         rval = qla2x00_start_scsi(sp);
 385         if (rval != QLA_SUCCESS)
 386                 goto qc_host_busy_free_sp;
 387
 388         /* Manage unprocessed RIO/ZIO commands in response queue. */
 389         if (ha->flags.online && ha->flags.process_response_queue &&
 390             ha->response_ring_ptr->signature != RESPONSE_PROCESSED) {
 391                 unsigned long flags;
 392
 393                 spin_lock_irqsave(&ha->hardware_lock, flags);
 394                 qla2x00_process_response_queue(ha);
 395                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 396         }
 397
 398         spin_lock_irq(ha->host->host_lock);
 399
 400         return 0;
 401
 402 qc_host_busy_free_sp:
 403         qla2x00_sp_free_dma(ha, sp);
 404         mempool_free(sp, ha->srb_mempool);
 405
 406 qc_host_busy_lock:
 407         spin_lock_irq(ha->host->host_lock);
 408
 409 qc_host_busy:
 410         return SCSI_MLQUEUE_HOST_BUSY;
 411
 412 qc_fail_command:
 413         done(cmd);
 414
 415         return 0;
 416 }
 417
 418
 419 static int
 420 qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 421 {
 422         scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
 423         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 424         srb_t *sp;
 425         int rval;
 426
 427         if (!fcport) {
 428                 cmd->result = DID_NO_CONNECT << 16;
 429                 goto qc24_fail_command;
 430         }
 431
 432         if (atomic_read(&fcport->state) != FCS_ONLINE) {
 433                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
 434                     atomic_read(&ha->loop_state) == LOOP_DEAD) {
 435                         cmd->result = DID_NO_CONNECT << 16;
 436                         goto qc24_fail_command;
 437                 }
 438                 goto qc24_host_busy;
 439         }
 440
 441         spin_unlock_irq(ha->host->host_lock);
 442
 443         sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
 444         if (!sp)
 445                 goto qc24_host_busy_lock;
 446
 447         rval = qla24xx_start_scsi(sp);
 448         if (rval != QLA_SUCCESS)
 449                 goto qc24_host_busy_free_sp;
 450
 451         spin_lock_irq(ha->host->host_lock);
 452
 453         return 0;
 454
 455 qc24_host_busy_free_sp:
 456         qla2x00_sp_free_dma(ha, sp);
 457         mempool_free(sp, ha->srb_mempool);
 458
 459 qc24_host_busy_lock:
 460         spin_lock_irq(ha->host->host_lock);
 461
 462 qc24_host_busy:
 463         return SCSI_MLQUEUE_HOST_BUSY;
 464
 465 qc24_fail_command:
 466         done(cmd);
 467
 468         return 0;
 469 }
 470
 471
 472 /*
 473  * qla2x00_eh_wait_on_command
 474  *    Waits for the command to be returned by the Firmware for some
 475  *    max time.
 476  *
 477  * Input:
 478  *    ha = actual ha whose done queue will contain the command
 479  *            returned by firmware.
 480  *    cmd = Scsi Command to wait on.
 481  *    flag = Abort/Reset(Bus or Device Reset)
 482  *
 483  * Return:
 484  *    Not Found : 0
 485  *    Found : 1
 486  */
 487 static int
 488 qla2x00_eh_wait_on_command(scsi_qla_host_t *ha, struct scsi_cmnd *cmd)
 489 {
 490 #define ABORT_POLLING_PERIOD    HZ
 491 #define ABORT_WAIT_ITER         ((10 * HZ) / (ABORT_POLLING_PERIOD))
 492         unsigned long wait_iter = ABORT_WAIT_ITER;
 493         int ret = QLA_SUCCESS;
 494
 495         while (CMD_SP(cmd)) {
 496                 set_current_state(TASK_UNINTERRUPTIBLE);
 497                 schedule_timeout(ABORT_POLLING_PERIOD);
 498
 499                 if (--wait_iter)
 500                         break;
 501         }
 502         if (CMD_SP(cmd))
 503                 ret = QLA_FUNCTION_FAILED;
 504
 505         return ret;
 506 }
 507
 508 /*
 509  * qla2x00_wait_for_hba_online
 510  *    Wait till the HBA is online after going through
 511  *    <= MAX_RETRIES_OF_ISP_ABORT  or
 512  *    finally HBA is disabled ie marked offline
 513  *
 514  * Input:
 515  *     ha - pointer to host adapter structure
 516  *
 517  * Note:
 518  *    Does context switching-Release SPIN_LOCK
 519  *    (if any) before calling this routine.
 520  *
 521  * Return:
 522  *    Success (Adapter is online) : 0
 523  *    Failed  (Adapter is offline/disabled) : 1
 524  */
 525 static int
 526 qla2x00_wait_for_hba_online(scsi_qla_host_t *ha)
 527 {
 528         int             return_status;
 529         unsigned long   wait_online;
 530
 531         wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 532         while (((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) ||
 533             test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags) ||
 534             test_bit(ISP_ABORT_RETRY, &ha->dpc_flags) ||
 535             ha->dpc_active) && time_before(jiffies, wait_online)) {
 536
 537                 msleep(1000);
 538         }
 539         if (ha->flags.online)
 540                 return_status = QLA_SUCCESS;
 541         else
 542                 return_status = QLA_FUNCTION_FAILED;
 543
 544         DEBUG2(printk("%s return_status=%d\n",__func__,return_status));
 545
 546         return (return_status);
 547 }
 548
 549 /*
 550  * qla2x00_wait_for_loop_ready
 551  *    Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
 552  *    to be in LOOP_READY state.
 553  * Input:
 554  *     ha - pointer to host adapter structure
 555  *
 556  * Note:
 557  *    Does context switching-Release SPIN_LOCK
 558  *    (if any) before calling this routine.
 559  *
 560  *
 561  * Return:
 562  *    Success (LOOP_READY) : 0
 563  *    Failed  (LOOP_NOT_READY) : 1
 564  */
 565 static inline int
 566 qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha)
 567 {
 568         int      return_status = QLA_SUCCESS;
 569         unsigned long loop_timeout ;
 570
 571         /* wait for 5 min at the max for loop to be ready */
 572         loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 573
 574         while ((!atomic_read(&ha->loop_down_timer) &&
 575             atomic_read(&ha->loop_state) == LOOP_DOWN) ||
 576             atomic_read(&ha->loop_state) != LOOP_READY) {
 577                 msleep(1000);
 578                 if (time_after_eq(jiffies, loop_timeout)) {
 579                         return_status = QLA_FUNCTION_FAILED;
 580                         break;
 581                 }
 582         }
 583         return (return_status);
 584 }
 585
 586 /**************************************************************************
 587 * qla2xxx_eh_abort
 588 *
 589 * Description:
 590 *    The abort function will abort the specified command.
 591 *
 592 * Input:
 593 *    cmd = Linux SCSI command packet to be aborted.
 594 *
 595 * Returns:
 596 *    Either SUCCESS or FAILED.
 597 *
 598 * Note:
 599 **************************************************************************/
 600 int
 601 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
 602 {
 603         scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
 604         srb_t *sp;
 605         int ret, i;
 606         unsigned int id, lun;
 607         unsigned long serial;
 608         unsigned long flags;
 609
 610         if (!CMD_SP(cmd))
 611                 return FAILED;
 612
 613         ret = FAILED;
 614
 615         id = cmd->device->id;
 616         lun = cmd->device->lun;
 617         serial = cmd->serial_number;
 618
 619         /* Check active list for command command. */
 620         spin_lock_irqsave(&ha->hardware_lock, flags);
 621         for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
 622                 sp = ha->outstanding_cmds[i];
 623
 624                 if (sp == NULL)
 625                         continue;
 626
 627                 if (sp->cmd != cmd)
 628                         continue;
 629
 630                 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld "
 631                     "sp->state=%x\n", __func__, ha->host_no, sp, serial,
 632                     sp->state));
 633                 DEBUG3(qla2x00_print_scsi_cmd(cmd);)
 634
 635                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 636                 if (ha->isp_ops.abort_command(ha, sp)) {
 637                         DEBUG2(printk("%s(%ld): abort_command "
 638                             "mbx failed.\n", __func__, ha->host_no));
 639                 } else {
 640                         DEBUG3(printk("%s(%ld): abort_command "
 641                             "mbx success.\n", __func__, ha->host_no));
 642                         ret = SUCCESS;
 643                 }
 644                 spin_lock_irqsave(&ha->hardware_lock, flags);
 645
 646                 break;
 647         }
 648         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 649
 650         /* Wait for the command to be returned. */
 651         if (ret == SUCCESS) {
 652                 if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) {
 653                         qla_printk(KERN_ERR, ha,
 654                             "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
 655                             "%x.\n", ha->host_no, id, lun, serial, ret);
 656                 }
 657         }
 658
 659         qla_printk(KERN_INFO, ha,
 660             "scsi(%ld:%d:%d): Abort command issued -- %lx %x.\n", ha->host_no,
 661             id, lun, serial, ret);
 662
 663         return ret;
 664 }
 665
 666 /**************************************************************************
 667 * qla2x00_eh_wait_for_pending_target_commands
 668 *
 669 * Description:
 670 *    Waits for all the commands to come back from the specified target.
 671 *
 672 * Input:
 673 *    ha - pointer to scsi_qla_host structure.
 674 *    t  - target
 675 * Returns:
 676 *    Either SUCCESS or FAILED.
 677 *
 678 * Note:
 679 **************************************************************************/
 680 static int
 681 qla2x00_eh_wait_for_pending_target_commands(scsi_qla_host_t *ha, unsigned int t)
 682 {
 683         int     cnt;
 684         int     status;
 685         srb_t           *sp;
 686         struct scsi_cmnd *cmd;
 687         unsigned long flags;
 688
 689         status = 0;
 690
 691         /*
 692          * Waiting for all commands for the designated target in the active
 693          * array
 694          */
 695         for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
 696                 spin_lock_irqsave(&ha->hardware_lock, flags);
 697                 sp = ha->outstanding_cmds[cnt];
 698                 if (sp) {
 699                         cmd = sp->cmd;
 700                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 701                         if (cmd->device->id == t) {
 702                                 if (!qla2x00_eh_wait_on_command(ha, cmd)) {
 703                                         status = 1;
 704                                         break;
 705                                 }
 706                         }
 707                 } else {
 708                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 709                 }
 710         }
 711         return (status);
 712 }
 713
 714
 715 /**************************************************************************
 716 * qla2xxx_eh_device_reset
 717 *
 718 * Description:
 719 *    The device reset function will reset the target and abort any
 720 *    executing commands.
 721 *
 722 *    NOTE: The use of SP is undefined within this context.  Do *NOT*
 723 *          attempt to use this value, even if you determine it is
 724 *          non-null.
 725 *
 726 * Input:
 727 *    cmd = Linux SCSI command packet of the command that cause the
 728 *          bus device reset.
 729 *
 730 * Returns:
 731 *    SUCCESS/FAILURE (defined as macro in scsi.h).
 732 *
 733 **************************************************************************/
 734 int
 735 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
 736 {
 737         scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
 738         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 739         srb_t *sp;
 740         int ret;
 741         unsigned int id, lun;
 742         unsigned long serial;
 743
 744         ret = FAILED;
 745
 746         id = cmd->device->id;
 747         lun = cmd->device->lun;
 748         serial = cmd->serial_number;
 749
 750         sp = (srb_t *) CMD_SP(cmd);
 751         if (!sp || !fcport)
 752                 return ret;
 753
 754         qla_printk(KERN_INFO, ha,
 755             "scsi(%ld:%d:%d): DEVICE RESET ISSUED.\n", ha->host_no, id, lun);
 756
 757         if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
 758                 goto eh_dev_reset_done;
 759
 760         if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
 761                 if (qla2x00_device_reset(ha, fcport) == 0)
 762                         ret = SUCCESS;
 763
 764 #if defined(LOGOUT_AFTER_DEVICE_RESET)
 765                 if (ret == SUCCESS) {
 766                         if (fcport->flags & FC_FABRIC_DEVICE) {
 767                                 ha->isp_ops.fabric_logout(ha, fcport->loop_id);
 768                                 qla2x00_mark_device_lost(ha, fcport);
 769                         }
 770                 }
 771 #endif
 772         } else {
 773                 DEBUG2(printk(KERN_INFO
 774                     "%s failed: loop not ready\n",__func__);)
 775         }
 776
 777         if (ret == FAILED) {
 778                 DEBUG3(printk("%s(%ld): device reset failed\n",
 779                     __func__, ha->host_no));
 780                 qla_printk(KERN_INFO, ha, "%s: device reset failed\n",
 781                     __func__);
 782
 783                 goto eh_dev_reset_done;
 784         }
 785
 786         /*
 787          * If we are coming down the EH path, wait for all commands to
 788          * complete for the device.
 789          */
 790         if (cmd->device->host->eh_active) {
 791                 if (qla2x00_eh_wait_for_pending_target_commands(ha, id))
 792                         ret = FAILED;
 793
 794                 if (ret == FAILED) {
 795                         DEBUG3(printk("%s(%ld): failed while waiting for "
 796                             "commands\n", __func__, ha->host_no));
 797                         qla_printk(KERN_INFO, ha,
 798                             "%s: failed while waiting for commands\n",
 799                             __func__);
 800
 801                         goto eh_dev_reset_done;
 802                 }
 803         }
 804
 805         qla_printk(KERN_INFO, ha,
 806             "scsi(%ld:%d:%d): DEVICE RESET SUCCEEDED.\n", ha->host_no, id, lun);
 807
 808 eh_dev_reset_done:
 809         return ret;
 810 }
 811
 812 /**************************************************************************
 813 * qla2x00_eh_wait_for_pending_commands
 814 *
 815 * Description:
 816 *    Waits for all the commands to come back from the specified host.
 817 *
 818 * Input:
 819 *    ha - pointer to scsi_qla_host structure.
 820 *
 821 * Returns:
 822 *    1 : SUCCESS
 823 *    0 : FAILED
 824 *
 825 * Note:
 826 **************************************************************************/
 827 static int
 828 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha)
 829 {
 830         int     cnt;
 831         int     status;
 832         srb_t           *sp;
 833         struct scsi_cmnd *cmd;
 834         unsigned long flags;
 835
 836         status = 1;
 837
 838         /*
 839          * Waiting for all commands for the designated target in the active
 840          * array
 841          */
 842         for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
 843                 spin_lock_irqsave(&ha->hardware_lock, flags);
 844                 sp = ha->outstanding_cmds[cnt];
 845                 if (sp) {
 846                         cmd = sp->cmd;
 847                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 848                         status = qla2x00_eh_wait_on_command(ha, cmd);
 849                         if (status == 0)
 850                                 break;
 851                 }
 852                 else {
 853                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 854                 }
 855         }
 856         return (status);
 857 }
 858
 859
 860 /**************************************************************************
 861 * qla2xxx_eh_bus_reset
 862 *
 863 * Description:
 864 *    The bus reset function will reset the bus and abort any executing
 865 *    commands.
 866 *
 867 * Input:
 868 *    cmd = Linux SCSI command packet of the command that cause the
 869 *          bus reset.
 870 *
 871 * Returns:
 872 *    SUCCESS/FAILURE (defined as macro in scsi.h).
 873 *
 874 **************************************************************************/
 875 int
 876 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
 877 {
 878         scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
 879         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 880         srb_t *sp;
 881         int ret;
 882         unsigned int id, lun;
 883         unsigned long serial;
 884
 885         ret = FAILED;
 886
 887         id = cmd->device->id;
 888         lun = cmd->device->lun;
 889         serial = cmd->serial_number;
 890
 891         sp = (srb_t *) CMD_SP(cmd);
 892         if (!sp || !fcport)
 893                 return ret;
 894
 895         qla_printk(KERN_INFO, ha,
 896             "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun);
 897
 898         if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) {
 899                 DEBUG2(printk("%s failed:board disabled\n",__func__));
 900                 goto eh_bus_reset_done;
 901         }
 902
 903         if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
 904                 if (qla2x00_loop_reset(ha) == QLA_SUCCESS)
 905                         ret = SUCCESS;
 906         }
 907         if (ret == FAILED)
 908                 goto eh_bus_reset_done;
 909
 910         /* Waiting for our command in done_queue to be returned to OS.*/
 911         if (cmd->device->host->eh_active)
 912                 if (!qla2x00_eh_wait_for_pending_commands(ha))
 913                         ret = FAILED;
 914
 915 eh_bus_reset_done:
 916         qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
 917             (ret == FAILED) ? "failed" : "succeded");
 918
 919         return ret;
 920 }
 921
 922 /**************************************************************************
 923 * qla2xxx_eh_host_reset
 924 *
 925 * Description:
 926 *    The reset function will reset the Adapter.
 927 *
 928 * Input:
 929 *      cmd = Linux SCSI command packet of the command that cause the
 930 *            adapter reset.
 931 *
 932 * Returns:
 933 *      Either SUCCESS or FAILED.
 934 *
 935 * Note:
 936 **************************************************************************/
 937 int
 938 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
 939 {
 940         scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
 941         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 942         srb_t *sp;
 943         int ret;
 944         unsigned int id, lun;
 945         unsigned long serial;
 946
 947         ret = FAILED;
 948
 949         id = cmd->device->id;
 950         lun = cmd->device->lun;
 951         serial = cmd->serial_number;
 952
 953         sp = (srb_t *) CMD_SP(cmd);
 954         if (!sp || !fcport)
 955                 return ret;
 956
 957         qla_printk(KERN_INFO, ha,
 958             "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun);
 959
 960         if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
 961                 goto eh_host_reset_lock;
 962
 963         /*
 964          * Fixme-may be dpc thread is active and processing
 965          * loop_resync,so wait a while for it to
 966          * be completed and then issue big hammer.Otherwise
 967          * it may cause I/O failure as big hammer marks the
 968          * devices as lost kicking of the port_down_timer
 969          * while dpc is stuck for the mailbox to complete.
 970          */
 971         qla2x00_wait_for_loop_ready(ha);
 972         set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
 973         if (qla2x00_abort_isp(ha)) {
 974                 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
 975                 /* failed. schedule dpc to try */
 976                 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
 977
 978                 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
 979                         goto eh_host_reset_lock;
 980         }
 981         clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
 982
 983         /* Waiting for our command in done_queue to be returned to OS.*/
 984         if (qla2x00_eh_wait_for_pending_commands(ha))
 985                 ret = SUCCESS;
 986
 987 eh_host_reset_lock:
 988         qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
 989             (ret == FAILED) ? "failed" : "succeded");
 990
 991         return ret;
 992 }
 993
 994 /*
 995 * qla2x00_loop_reset
 996 *      Issue loop reset.
 997 *
 998 * Input:
 999 *      ha = adapter block pointer.
1000 *
1001 * Returns:
1002 *      0 = success
1003 */
1004 static int
1005 qla2x00_loop_reset(scsi_qla_host_t *ha)
1006 {
1007         int status = QLA_SUCCESS;
1008         struct fc_port *fcport;
1009
1010         if (ha->flags.enable_lip_reset) {
1011                 status = qla2x00_lip_reset(ha);
1012         }
1013
1014         if (status == QLA_SUCCESS && ha->flags.enable_target_reset) {
1015                 list_for_each_entry(fcport, &ha->fcports, list) {
1016                         if (fcport->port_type != FCT_TARGET)
1017                                 continue;
1018
1019                         status = qla2x00_target_reset(ha, fcport);
1020                         if (status != QLA_SUCCESS)
1021                                 break;
1022                 }
1023         }
1024
1025         if (status == QLA_SUCCESS &&
1026                 ((!ha->flags.enable_target_reset &&
1027                   !ha->flags.enable_lip_reset) ||
1028                 ha->flags.enable_lip_full_login)) {
1029
1030                 status = qla2x00_full_login_lip(ha);
1031         }
1032
1033         /* Issue marker command only when we are going to start the I/O */
1034         ha->marker_needed = 1;
1035
1036         if (status) {
1037                 /* Empty */
1038                 DEBUG2_3(printk("%s(%ld): **** FAILED ****\n",
1039                                 __func__,
1040                                 ha->host_no);)
1041         } else {
1042                 /* Empty */
1043                 DEBUG3(printk("%s(%ld): exiting normally.\n",
1044                                 __func__,
1045                                 ha->host_no);)
1046         }
1047
1048         return(status);
1049 }
1050
1051 /*
1052  * qla2x00_device_reset
1053  *      Issue bus device reset message to the target.
1054  *
1055  * Input:
1056  *      ha = adapter block pointer.
1057  *      t = SCSI ID.
1058  *      TARGET_QUEUE_LOCK must be released.
1059  *      ADAPTER_STATE_LOCK must be released.
1060  *
1061  * Context:
1062  *      Kernel context.
1063  */
1064 static int
1065 qla2x00_device_reset(scsi_qla_host_t *ha, fc_port_t *reset_fcport)
1066 {
1067         /* Abort Target command will clear Reservation */
1068         return ha->isp_ops.abort_target(reset_fcport);
1069 }
1070
1071 static int
1072 qla2xxx_slave_alloc(struct scsi_device *sdev)
1073 {
1074         struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1075
1076         if (!rport)
1077                 return -ENXIO;
1078
1079         sdev->hostdata = rport->dd_data;
1080
1081         return 0;
1082 }
1083
1084 static int
1085 qla2xxx_slave_configure(struct scsi_device *sdev)
1086 {
1087         scsi_qla_host_t *ha = to_qla_host(sdev->host);
1088         struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1089
1090         if (sdev->tagged_supported)
1091                 scsi_activate_tcq(sdev, 32);
1092         else
1093                 scsi_deactivate_tcq(sdev, 32);
1094
1095         rport->dev_loss_tmo = ha->port_down_retry_count + 5;
1096
1097         return 0;
1098 }
1099
1100 static void
1101 qla2xxx_slave_destroy(struct scsi_device *sdev)
1102 {
1103         sdev->hostdata = NULL;
1104 }
1105
1106 /**
1107  * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1108  * @ha: HA context
1109  *
1110  * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1111  * supported addressing method.
1112  */
1113 static void
1114 qla2x00_config_dma_addressing(scsi_qla_host_t *ha)
1115 {
1116         /* Assume 32bit DMA address */
1117         ha->flags.enable_64bit_addressing = 0;
1118
1119         /*
1120          * Given the two variants pci_set_dma_mask(), allow the compiler to
1121          * assist in setting the proper dma mask.
1122          */
1123         if (sizeof(dma_addr_t) > 4) {
1124                 if (pci_set_dma_mask(ha->pdev, DMA_64BIT_MASK) == 0) {
1125                         ha->flags.enable_64bit_addressing = 1;
1126                         ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_64;
1127                         ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_64;
1128
1129                         if (pci_set_consistent_dma_mask(ha->pdev,
1130                             DMA_64BIT_MASK)) {
1131                                 qla_printk(KERN_DEBUG, ha,
1132                                     "Failed to set 64 bit PCI consistent mask; "
1133                                     "using 32 bit.\n");
1134                                 pci_set_consistent_dma_mask(ha->pdev,
1135                                     DMA_32BIT_MASK);
1136                         }
1137                 } else {
1138                         qla_printk(KERN_DEBUG, ha,
1139                             "Failed to set 64 bit PCI DMA mask, falling back "
1140                             "to 32 bit MASK.\n");
1141                         pci_set_dma_mask(ha->pdev, DMA_32BIT_MASK);
1142                 }
1143         } else {
1144                 pci_set_dma_mask(ha->pdev, DMA_32BIT_MASK);
1145         }
1146 }
1147
1148 static int
1149 qla2x00_iospace_config(scsi_qla_host_t *ha)
1150 {
1151         unsigned long   pio, pio_len, pio_flags;
1152         unsigned long   mmio, mmio_len, mmio_flags;
1153
1154         /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1155         pio = pci_resource_start(ha->pdev, 0);
1156         pio_len = pci_resource_len(ha->pdev, 0);
1157         pio_flags = pci_resource_flags(ha->pdev, 0);
1158         if (pio_flags & IORESOURCE_IO) {
1159                 if (pio_len < MIN_IOBASE_LEN) {
1160                         qla_printk(KERN_WARNING, ha,
1161                             "Invalid PCI I/O region size (%s)...\n",
1162                                 pci_name(ha->pdev));
1163                         pio = 0;
1164                 }
1165         } else {
1166                 qla_printk(KERN_WARNING, ha,
1167                     "region #0 not a PIO resource (%s)...\n",
1168                     pci_name(ha->pdev));
1169                 pio = 0;
1170         }
1171
1172         /* Use MMIO operations for all accesses. */
1173         mmio = pci_resource_start(ha->pdev, 1);
1174         mmio_len = pci_resource_len(ha->pdev, 1);
1175         mmio_flags = pci_resource_flags(ha->pdev, 1);
1176
1177         if (!(mmio_flags & IORESOURCE_MEM)) {
1178                 qla_printk(KERN_ERR, ha,
1179                     "region #0 not an MMIO resource (%s), aborting\n",
1180                     pci_name(ha->pdev));
1181                 goto iospace_error_exit;
1182         }
1183         if (mmio_len < MIN_IOBASE_LEN) {
1184                 qla_printk(KERN_ERR, ha,
1185                     "Invalid PCI mem region size (%s), aborting\n",
1186                         pci_name(ha->pdev));
1187                 goto iospace_error_exit;
1188         }
1189
1190         if (pci_request_regions(ha->pdev, ha->brd_info->drv_name)) {
1191                 qla_printk(KERN_WARNING, ha,
1192                     "Failed to reserve PIO/MMIO regions (%s)\n",
1193                     pci_name(ha->pdev));
1194
1195                 goto iospace_error_exit;
1196         }
1197
1198         ha->pio_address = pio;
1199         ha->pio_length = pio_len;
1200         ha->iobase = ioremap(mmio, MIN_IOBASE_LEN);
1201         if (!ha->iobase) {
1202                 qla_printk(KERN_ERR, ha,
1203                     "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1204
1205                 goto iospace_error_exit;
1206         }
1207
1208         return (0);
1209
1210 iospace_error_exit:
1211         return (-ENOMEM);
1212 }
1213
1214 static void
1215 qla2x00_enable_intrs(scsi_qla_host_t *ha)
1216 {
1217         unsigned long flags = 0;
1218         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1219
1220         spin_lock_irqsave(&ha->hardware_lock, flags);
1221         ha->interrupts_on = 1;
1222         /* enable risc and host interrupts */
1223         WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1224         RD_REG_WORD(&reg->ictrl);
1225         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1226
1227 }
1228
1229 static void
1230 qla2x00_disable_intrs(scsi_qla_host_t *ha)
1231 {
1232         unsigned long flags = 0;
1233         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1234
1235         spin_lock_irqsave(&ha->hardware_lock, flags);
1236         ha->interrupts_on = 0;
1237         /* disable risc and host interrupts */
1238         WRT_REG_WORD(&reg->ictrl, 0);
1239         RD_REG_WORD(&reg->ictrl);
1240         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1241 }
1242
1243 static void
1244 qla24xx_enable_intrs(scsi_qla_host_t *ha)
1245 {
1246         unsigned long flags = 0;
1247         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1248
1249         spin_lock_irqsave(&ha->hardware_lock, flags);
1250         ha->interrupts_on = 1;
1251         WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1252         RD_REG_DWORD(&reg->ictrl);
1253         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1254 }
1255
1256 static void
1257 qla24xx_disable_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 = 0;
1264         WRT_REG_DWORD(&reg->ictrl, 0);
1265         RD_REG_DWORD(&reg->ictrl);
1266         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1267 }
1268
1269 /*
1270  * PCI driver interface
1271  */
1272 int qla2x00_probe_one(struct pci_dev *pdev, struct qla_board_info *brd_info)
1273 {
1274         int     ret = -ENODEV;
1275         device_reg_t __iomem *reg;
1276         struct Scsi_Host *host;
1277         scsi_qla_host_t *ha;
1278         unsigned long   flags = 0;
1279         unsigned long   wait_switch = 0;
1280         char pci_info[20];
1281         char fw_str[30];
1282         fc_port_t *fcport;
1283
1284         if (pci_enable_device(pdev))
1285                 goto probe_out;
1286
1287         host = scsi_host_alloc(brd_info->sht ? brd_info->sht:
1288             &qla2x00_driver_template, sizeof(scsi_qla_host_t));
1289         if (host == NULL) {
1290                 printk(KERN_WARNING
1291                     "qla2xxx: Couldn't allocate host from scsi layer!\n");
1292                 goto probe_disable_device;
1293         }
1294
1295         /* Clear our data area */
1296         ha = (scsi_qla_host_t *)host->hostdata;
1297         memset(ha, 0, sizeof(scsi_qla_host_t));
1298
1299         ha->pdev = pdev;
1300         ha->host = host;
1301         ha->host_no = host->host_no;
1302         ha->brd_info = brd_info;
1303         sprintf(ha->host_str, "%s_%ld", ha->brd_info->drv_name, ha->host_no);
1304
1305         /* Configure PCI I/O space */
1306         ret = qla2x00_iospace_config(ha);
1307         if (ret)
1308                 goto probe_failed;
1309
1310         qla_printk(KERN_INFO, ha,
1311             "Found an %s, irq %d, iobase 0x%p\n", ha->brd_info->isp_name,
1312             pdev->irq, ha->iobase);
1313
1314         spin_lock_init(&ha->hardware_lock);
1315
1316         ha->prev_topology = 0;
1317         ha->ports = MAX_BUSES;
1318         ha->init_cb_size = sizeof(init_cb_t);
1319
1320         /* Assign ISP specific operations. */
1321         ha->isp_ops.pci_config          = qla2100_pci_config;
1322         ha->isp_ops.reset_chip          = qla2x00_reset_chip;
1323         ha->isp_ops.chip_diag           = qla2x00_chip_diag;
1324         ha->isp_ops.config_rings        = qla2x00_config_rings;
1325         ha->isp_ops.reset_adapter       = qla2x00_reset_adapter;
1326         ha->isp_ops.nvram_config        = qla2x00_nvram_config;
1327         ha->isp_ops.update_fw_options   = qla2x00_update_fw_options;
1328         ha->isp_ops.load_risc           = qla2x00_load_risc;
1329         ha->isp_ops.pci_info_str        = qla2x00_pci_info_str;
1330         ha->isp_ops.fw_version_str      = qla2x00_fw_version_str;
1331         ha->isp_ops.intr_handler        = qla2100_intr_handler;
1332         ha->isp_ops.enable_intrs        = qla2x00_enable_intrs;
1333         ha->isp_ops.disable_intrs       = qla2x00_disable_intrs;
1334         ha->isp_ops.abort_command       = qla2x00_abort_command;
1335         ha->isp_ops.abort_target        = qla2x00_abort_target;
1336         ha->isp_ops.fabric_login        = qla2x00_login_fabric;
1337         ha->isp_ops.fabric_logout       = qla2x00_fabric_logout;
1338         ha->isp_ops.calc_req_entries    = qla2x00_calc_iocbs_32;
1339         ha->isp_ops.build_iocbs         = qla2x00_build_scsi_iocbs_32;
1340         ha->isp_ops.prep_ms_iocb        = qla2x00_prep_ms_iocb;
1341         ha->isp_ops.read_nvram          = qla2x00_read_nvram_data;
1342         ha->isp_ops.write_nvram         = qla2x00_write_nvram_data;
1343         ha->isp_ops.fw_dump             = qla2100_fw_dump;
1344         ha->isp_ops.ascii_fw_dump       = qla2100_ascii_fw_dump;
1345         if (IS_QLA2100(ha)) {
1346                 host->max_id = MAX_TARGETS_2100;
1347                 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1348                 ha->request_q_length = REQUEST_ENTRY_CNT_2100;
1349                 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1350                 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1351                 host->sg_tablesize = 32;
1352                 ha->gid_list_info_size = 4;
1353         } else if (IS_QLA2200(ha)) {
1354                 host->max_id = MAX_TARGETS_2200;
1355                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1356                 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1357                 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1358                 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1359                 ha->gid_list_info_size = 4;
1360         } else if (IS_QLA23XX(ha)) {
1361                 host->max_id = MAX_TARGETS_2200;
1362                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1363                 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1364                 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1365                 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1366                 ha->isp_ops.pci_config = qla2300_pci_config;
1367                 ha->isp_ops.intr_handler = qla2300_intr_handler;
1368                 ha->isp_ops.fw_dump = qla2300_fw_dump;
1369                 ha->isp_ops.ascii_fw_dump = qla2300_ascii_fw_dump;
1370                 ha->gid_list_info_size = 6;
1371         } else if (IS_QLA24XX(ha) || IS_QLA25XX(ha)) {
1372                 host->max_id = MAX_TARGETS_2200;
1373                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1374                 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1375                 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1376                 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1377                 ha->init_cb_size = sizeof(struct init_cb_24xx);
1378                 ha->isp_ops.pci_config = qla24xx_pci_config;
1379                 ha->isp_ops.reset_chip = qla24xx_reset_chip;
1380                 ha->isp_ops.chip_diag = qla24xx_chip_diag;
1381                 ha->isp_ops.config_rings = qla24xx_config_rings;
1382                 ha->isp_ops.reset_adapter = qla24xx_reset_adapter;
1383                 ha->isp_ops.nvram_config = qla24xx_nvram_config;
1384                 ha->isp_ops.update_fw_options = qla24xx_update_fw_options;
1385                 ha->isp_ops.load_risc = qla24xx_load_risc_flash;
1386                 if (ql2xfwloadbin)
1387                         ha->isp_ops.load_risc = qla24xx_load_risc_hotplug;
1388                 ha->isp_ops.pci_info_str = qla24xx_pci_info_str;
1389                 ha->isp_ops.fw_version_str = qla24xx_fw_version_str;
1390                 ha->isp_ops.intr_handler = qla24xx_intr_handler;
1391                 ha->isp_ops.enable_intrs = qla24xx_enable_intrs;
1392                 ha->isp_ops.disable_intrs = qla24xx_disable_intrs;
1393                 ha->isp_ops.abort_command = qla24xx_abort_command;
1394                 ha->isp_ops.abort_target = qla24xx_abort_target;
1395                 ha->isp_ops.fabric_login = qla24xx_login_fabric;
1396                 ha->isp_ops.fabric_logout = qla24xx_fabric_logout;
1397                 ha->isp_ops.prep_ms_iocb = qla24xx_prep_ms_iocb;
1398                 ha->isp_ops.read_nvram = qla24xx_read_nvram_data;
1399                 ha->isp_ops.write_nvram = qla24xx_write_nvram_data;
1400                 ha->isp_ops.fw_dump = qla24xx_fw_dump;
1401                 ha->isp_ops.ascii_fw_dump = qla24xx_ascii_fw_dump;
1402                 ha->gid_list_info_size = 8;
1403         }
1404         host->can_queue = ha->request_q_length + 128;
1405
1406         /* load the F/W, read paramaters, and init the H/W */
1407         ha->instance = num_hosts;
1408
1409         init_MUTEX(&ha->mbx_cmd_sem);
1410         init_MUTEX_LOCKED(&ha->mbx_intr_sem);
1411
1412         INIT_LIST_HEAD(&ha->list);
1413         INIT_LIST_HEAD(&ha->fcports);
1414         INIT_LIST_HEAD(&ha->rscn_fcports);
1415
1416         /*
1417          * These locks are used to prevent more than one CPU
1418          * from modifying the queue at the same time. The
1419          * higher level "host_lock" will reduce most
1420          * contention for these locks.
1421          */
1422         spin_lock_init(&ha->mbx_reg_lock);
1423
1424         ha->dpc_pid = -1;
1425         init_completion(&ha->dpc_inited);
1426         init_completion(&ha->dpc_exited);
1427
1428         qla2x00_config_dma_addressing(ha);
1429         if (qla2x00_mem_alloc(ha)) {
1430                 qla_printk(KERN_WARNING, ha,
1431                     "[ERROR] Failed to allocate memory for adapter\n");
1432
1433                 ret = -ENOMEM;
1434                 goto probe_failed;
1435         }
1436
1437         if (qla2x00_initialize_adapter(ha) &&
1438             !(ha->device_flags & DFLG_NO_CABLE)) {
1439
1440                 qla_printk(KERN_WARNING, ha,
1441                     "Failed to initialize adapter\n");
1442
1443                 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1444                     "Adapter flags %x.\n",
1445                     ha->host_no, ha->device_flags));
1446
1447                 ret = -ENODEV;
1448                 goto probe_failed;
1449         }
1450
1451         /*
1452          * Startup the kernel thread for this host adapter
1453          */
1454         ha->dpc_should_die = 0;
1455         ha->dpc_pid = kernel_thread(qla2x00_do_dpc, ha, 0);
1456         if (ha->dpc_pid < 0) {
1457                 qla_printk(KERN_WARNING, ha,
1458                     "Unable to start DPC thread!\n");
1459
1460                 ret = -ENODEV;
1461                 goto probe_failed;
1462         }
1463         wait_for_completion(&ha->dpc_inited);
1464
1465         host->this_id = 255;
1466         host->cmd_per_lun = 3;
1467         host->unique_id = ha->instance;
1468         host->max_cmd_len = MAX_CMDSZ;
1469         host->max_channel = ha->ports - 1;
1470         host->max_lun = MAX_LUNS;
1471         host->transportt = qla2xxx_transport_template;
1472
1473         ret = request_irq(pdev->irq, ha->isp_ops.intr_handler,
1474             SA_INTERRUPT|SA_SHIRQ, ha->brd_info->drv_name, ha);
1475         if (ret) {
1476                 qla_printk(KERN_WARNING, ha,
1477                     "Failed to reserve interrupt %d already in use.\n",
1478                     pdev->irq);
1479                 goto probe_failed;
1480         }
1481         host->irq = pdev->irq;
1482
1483         /* Initialized the timer */
1484         qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL);
1485
1486         DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1487             ha->host_no, ha));
1488
1489         ha->isp_ops.disable_intrs(ha);
1490
1491         spin_lock_irqsave(&ha->hardware_lock, flags);
1492         reg = ha->iobase;
1493         if (IS_QLA24XX(ha) || IS_QLA25XX(ha)) {
1494                 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_HOST_INT);
1495                 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_RISC_INT);
1496         } else {
1497                 WRT_REG_WORD(&reg->isp.semaphore, 0);
1498                 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_RISC_INT);
1499                 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_HOST_INT);
1500
1501                 /* Enable proper parity */
1502                 if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) {
1503                         if (IS_QLA2300(ha))
1504                                 /* SRAM parity */
1505                                 WRT_REG_WORD(&reg->isp.hccr,
1506                                     (HCCR_ENABLE_PARITY + 0x1));
1507                         else
1508                                 /* SRAM, Instruction RAM and GP RAM parity */
1509                                 WRT_REG_WORD(&reg->isp.hccr,
1510                                     (HCCR_ENABLE_PARITY + 0x7));
1511                 }
1512         }
1513         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1514
1515         ha->isp_ops.enable_intrs(ha);
1516
1517         /* v2.19.5b6 */
1518         /*
1519          * Wait around max loop_reset_delay secs for the devices to come
1520          * on-line. We don't want Linux scanning before we are ready.
1521          *
1522          */
1523         for (wait_switch = jiffies + (ha->loop_reset_delay * HZ);
1524             time_before(jiffies,wait_switch) &&
1525              !(ha->device_flags & (DFLG_NO_CABLE | DFLG_FABRIC_DEVICES))
1526              && (ha->device_flags & SWITCH_FOUND) ;) {
1527
1528                 qla2x00_check_fabric_devices(ha);
1529
1530                 msleep(10);
1531         }
1532
1533         pci_set_drvdata(pdev, ha);
1534         ha->flags.init_done = 1;
1535         num_hosts++;
1536
1537         ret = scsi_add_host(host, &pdev->dev);
1538         if (ret)
1539                 goto probe_failed;
1540
1541         qla2x00_alloc_sysfs_attr(ha);
1542
1543         qla2x00_init_host_attr(ha);
1544
1545         qla_printk(KERN_INFO, ha, "\n"
1546             " QLogic Fibre Channel HBA Driver: %s\n"
1547             "  QLogic %s - %s\n"
1548             "  %s: %s @ %s hdma%c, host#=%ld, fw=%s\n", qla2x00_version_str,
1549             ha->model_number, ha->model_desc ? ha->model_desc: "",
1550             ha->brd_info->isp_name, ha->isp_ops.pci_info_str(ha, pci_info),
1551             pci_name(pdev), ha->flags.enable_64bit_addressing ? '+': '-',
1552             ha->host_no, ha->isp_ops.fw_version_str(ha, fw_str));
1553
1554         /* Go with fc_rport registration. */
1555         list_for_each_entry(fcport, &ha->fcports, list)
1556                 qla2x00_reg_remote_port(ha, fcport);
1557
1558         return 0;
1559
1560 probe_failed:
1561         fc_remove_host(ha->host);
1562
1563         qla2x00_free_device(ha);
1564
1565         scsi_host_put(host);
1566
1567 probe_disable_device:
1568         pci_disable_device(pdev);
1569
1570 probe_out:
1571         return ret;
1572 }
1573 EXPORT_SYMBOL_GPL(qla2x00_probe_one);
1574
1575 void qla2x00_remove_one(struct pci_dev *pdev)
1576 {
1577         scsi_qla_host_t *ha;
1578
1579         ha = pci_get_drvdata(pdev);
1580
1581         qla2x00_free_sysfs_attr(ha);
1582
1583         fc_remove_host(ha->host);
1584
1585         scsi_remove_host(ha->host);
1586
1587         qla2x00_free_device(ha);
1588
1589         scsi_host_put(ha->host);
1590
1591         pci_set_drvdata(pdev, NULL);
1592 }
1593 EXPORT_SYMBOL_GPL(qla2x00_remove_one);
1594
1595 static void
1596 qla2x00_free_device(scsi_qla_host_t *ha)
1597 {
1598         int ret;
1599
1600         /* Abort any outstanding IO descriptors. */
1601         if (!IS_QLA2100(ha) && !IS_QLA2200(ha))
1602                 qla2x00_cancel_io_descriptors(ha);
1603
1604         /* turn-off interrupts on the card */
1605         if (ha->interrupts_on)
1606                 ha->isp_ops.disable_intrs(ha);
1607
1608         /* Disable timer */
1609         if (ha->timer_active)
1610                 qla2x00_stop_timer(ha);
1611
1612         /* Kill the kernel thread for this host */
1613         if (ha->dpc_pid >= 0) {
1614                 ha->dpc_should_die = 1;
1615                 wmb();
1616                 ret = kill_proc(ha->dpc_pid, SIGHUP, 1);
1617                 if (ret) {
1618                         qla_printk(KERN_ERR, ha,
1619                             "Unable to signal DPC thread -- (%d)\n", ret);
1620
1621                         /* TODO: SOMETHING MORE??? */
1622                 } else {
1623                         wait_for_completion(&ha->dpc_exited);
1624                 }
1625         }
1626
1627         qla2x00_mem_free(ha);
1628
1629
1630         ha->flags.online = 0;
1631
1632         /* Detach interrupts */
1633         if (ha->pdev->irq)
1634                 free_irq(ha->pdev->irq, ha);
1635
1636         /* release io space registers  */
1637         if (ha->iobase)
1638                 iounmap(ha->iobase);
1639         pci_release_regions(ha->pdev);
1640
1641         pci_disable_device(ha->pdev);
1642 }
1643
1644 /*
1645  * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1646  *
1647  * Input: ha = adapter block pointer.  fcport = port structure pointer.
1648  *
1649  * Return: None.
1650  *
1651  * Context:
1652  */
1653 void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport,
1654     int do_login)
1655 {
1656         if (atomic_read(&fcport->state) == FCS_ONLINE && fcport->rport)
1657                 fc_remote_port_block(fcport->rport);
1658         /*
1659          * We may need to retry the login, so don't change the state of the
1660          * port but do the retries.
1661          */
1662         if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
1663                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1664
1665         if (!do_login)
1666                 return;
1667
1668         if (fcport->login_retry == 0) {
1669                 fcport->login_retry = ha->login_retry_count;
1670                 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
1671
1672                 DEBUG(printk("scsi(%ld): Port login retry: "
1673                     "%02x%02x%02x%02x%02x%02x%02x%02x, "
1674                     "id = 0x%04x retry cnt=%d\n",
1675                     ha->host_no,
1676                     fcport->port_name[0],
1677                     fcport->port_name[1],
1678                     fcport->port_name[2],
1679                     fcport->port_name[3],
1680                     fcport->port_name[4],
1681                     fcport->port_name[5],
1682                     fcport->port_name[6],
1683                     fcport->port_name[7],
1684                     fcport->loop_id,
1685                     fcport->login_retry));
1686         }
1687 }
1688
1689 /*
1690  * qla2x00_mark_all_devices_lost
1691  *      Updates fcport state when device goes offline.
1692  *
1693  * Input:
1694  *      ha = adapter block pointer.
1695  *      fcport = port structure pointer.
1696  *
1697  * Return:
1698  *      None.
1699  *
1700  * Context:
1701  */
1702 void
1703 qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha)
1704 {
1705         fc_port_t *fcport;
1706
1707         list_for_each_entry(fcport, &ha->fcports, list) {
1708                 if (fcport->port_type != FCT_TARGET)
1709                         continue;
1710
1711                 /*
1712                  * No point in marking the device as lost, if the device is
1713                  * already DEAD.
1714                  */
1715                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
1716                         continue;
1717                 if (atomic_read(&fcport->state) == FCS_ONLINE && fcport->rport)
1718                         fc_remote_port_block(fcport->rport);
1719                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1720         }
1721 }
1722
1723 /*
1724 * qla2x00_mem_alloc
1725 *      Allocates adapter memory.
1726 *
1727 * Returns:
1728 *      0  = success.
1729 *      1  = failure.
1730 */
1731 static uint8_t
1732 qla2x00_mem_alloc(scsi_qla_host_t *ha)
1733 {
1734         char    name[16];
1735         uint8_t   status = 1;
1736         int     retry= 10;
1737
1738         do {
1739                 /*
1740                  * This will loop only once if everything goes well, else some
1741                  * number of retries will be performed to get around a kernel
1742                  * bug where available mem is not allocated until after a
1743                  * little delay and a retry.
1744                  */
1745                 ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
1746                     (ha->request_q_length + 1) * sizeof(request_t),
1747                     &ha->request_dma, GFP_KERNEL);
1748                 if (ha->request_ring == NULL) {
1749                         qla_printk(KERN_WARNING, ha,
1750                             "Memory Allocation failed - request_ring\n");
1751
1752                         qla2x00_mem_free(ha);
1753                         msleep(100);
1754
1755                         continue;
1756                 }
1757
1758                 ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
1759                     (ha->response_q_length + 1) * sizeof(response_t),
1760                     &ha->response_dma, GFP_KERNEL);
1761                 if (ha->response_ring == NULL) {
1762                         qla_printk(KERN_WARNING, ha,
1763                             "Memory Allocation failed - response_ring\n");
1764
1765                         qla2x00_mem_free(ha);
1766                         msleep(100);
1767
1768                         continue;
1769                 }
1770
1771                 ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
1772                     &ha->gid_list_dma, GFP_KERNEL);
1773                 if (ha->gid_list == NULL) {
1774                         qla_printk(KERN_WARNING, ha,
1775                             "Memory Allocation failed - gid_list\n");
1776
1777                         qla2x00_mem_free(ha);
1778                         msleep(100);
1779
1780                         continue;
1781                 }
1782
1783                 ha->rlc_rsp = dma_alloc_coherent(&ha->pdev->dev,
1784                     sizeof(rpt_lun_cmd_rsp_t), &ha->rlc_rsp_dma, GFP_KERNEL);
1785                 if (ha->rlc_rsp == NULL) {
1786                         qla_printk(KERN_WARNING, ha,
1787                                 "Memory Allocation failed - rlc");
1788
1789                         qla2x00_mem_free(ha);
1790                         msleep(100);
1791
1792                         continue;
1793                 }
1794
1795                 snprintf(name, sizeof(name), "qla2xxx_%ld", ha->host_no);
1796                 ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
1797                     DMA_POOL_SIZE, 8, 0);
1798                 if (ha->s_dma_pool == NULL) {
1799                         qla_printk(KERN_WARNING, ha,
1800                             "Memory Allocation failed - s_dma_pool\n");
1801
1802                         qla2x00_mem_free(ha);
1803                         msleep(100);
1804
1805                         continue;
1806                 }
1807
1808                 /* get consistent memory allocated for init control block */
1809                 ha->init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1810                     &ha->init_cb_dma);
1811                 if (ha->init_cb == NULL) {
1812                         qla_printk(KERN_WARNING, ha,
1813                             "Memory Allocation failed - init_cb\n");
1814
1815                         qla2x00_mem_free(ha);
1816                         msleep(100);
1817
1818                         continue;
1819                 }
1820                 memset(ha->init_cb, 0, ha->init_cb_size);
1821
1822                 /* Get consistent memory allocated for Get Port Database cmd */
1823                 ha->iodesc_pd = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1824                     &ha->iodesc_pd_dma);
1825                 if (ha->iodesc_pd == NULL) {
1826                         /* error */
1827                         qla_printk(KERN_WARNING, ha,
1828                             "Memory Allocation failed - iodesc_pd\n");
1829
1830                         qla2x00_mem_free(ha);
1831                         msleep(100);
1832
1833                         continue;
1834                 }
1835                 memset(ha->iodesc_pd, 0, PORT_DATABASE_SIZE);
1836
1837                 /* Allocate ioctl related memory. */
1838                 if (qla2x00_alloc_ioctl_mem(ha)) {
1839                         qla_printk(KERN_WARNING, ha,
1840                             "Memory Allocation failed - ioctl_mem\n");
1841
1842                         qla2x00_mem_free(ha);
1843                         msleep(100);
1844
1845                         continue;
1846                 }
1847
1848                 if (qla2x00_allocate_sp_pool(ha)) {
1849                         qla_printk(KERN_WARNING, ha,
1850                             "Memory Allocation failed - "
1851                             "qla2x00_allocate_sp_pool()\n");
1852
1853                         qla2x00_mem_free(ha);
1854                         msleep(100);
1855
1856                         continue;
1857                 }
1858
1859                 /* Allocate memory for SNS commands */
1860                 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
1861                         /* Get consistent memory allocated for SNS commands */
1862                         ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
1863                             sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma,
1864                             GFP_KERNEL);
1865                         if (ha->sns_cmd == NULL) {
1866                                 /* error */
1867                                 qla_printk(KERN_WARNING, ha,
1868                                     "Memory Allocation failed - sns_cmd\n");
1869
1870                                 qla2x00_mem_free(ha);
1871                                 msleep(100);
1872
1873                                 continue;
1874                         }
1875                         memset(ha->sns_cmd, 0, sizeof(struct sns_cmd_pkt));
1876                 } else {
1877                         /* Get consistent memory allocated for MS IOCB */
1878                         ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1879                             &ha->ms_iocb_dma);
1880                         if (ha->ms_iocb == NULL) {
1881                                 /* error */
1882                                 qla_printk(KERN_WARNING, ha,
1883                                     "Memory Allocation failed - ms_iocb\n");
1884
1885                                 qla2x00_mem_free(ha);
1886                                 msleep(100);
1887
1888                                 continue;
1889                         }
1890                         memset(ha->ms_iocb, 0, sizeof(ms_iocb_entry_t));
1891
1892                         /*
1893                          * Get consistent memory allocated for CT SNS
1894                          * commands
1895                          */
1896                         ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
1897                             sizeof(struct ct_sns_pkt), &ha->ct_sns_dma,
1898                             GFP_KERNEL);
1899                         if (ha->ct_sns == NULL) {
1900                                 /* error */
1901                                 qla_printk(KERN_WARNING, ha,
1902                                     "Memory Allocation failed - ct_sns\n");
1903
1904                                 qla2x00_mem_free(ha);
1905                                 msleep(100);
1906
1907                                 continue;
1908                         }
1909                         memset(ha->ct_sns, 0, sizeof(struct ct_sns_pkt));
1910                 }
1911
1912                 /* Done all allocations without any error. */
1913                 status = 0;
1914
1915         } while (retry-- && status != 0);
1916
1917         if (status) {
1918                 printk(KERN_WARNING
1919                         "%s(): **** FAILED ****\n", __func__);
1920         }
1921
1922         return(status);
1923 }
1924
1925 /*
1926 * qla2x00_mem_free
1927 *      Frees all adapter allocated memory.
1928 *
1929 * Input:
1930 *      ha = adapter block pointer.
1931 */
1932 static void
1933 qla2x00_mem_free(scsi_qla_host_t *ha)
1934 {
1935         struct list_head        *fcpl, *fcptemp;
1936         fc_port_t       *fcport;
1937         unsigned long   wtime;/* max wait time if mbx cmd is busy. */
1938
1939         if (ha == NULL) {
1940                 /* error */
1941                 DEBUG2(printk("%s(): ERROR invalid ha pointer.\n", __func__));
1942                 return;
1943         }
1944
1945         /* Make sure all other threads are stopped. */
1946         wtime = 60 * HZ;
1947         while (ha->dpc_wait && wtime) {
1948                 set_current_state(TASK_INTERRUPTIBLE);
1949                 wtime = schedule_timeout(wtime);
1950         }
1951
1952         /* free ioctl memory */
1953         qla2x00_free_ioctl_mem(ha);
1954
1955         /* free sp pool */
1956         qla2x00_free_sp_pool(ha);
1957
1958         if (ha->sns_cmd)
1959                 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
1960                     ha->sns_cmd, ha->sns_cmd_dma);
1961
1962         if (ha->ct_sns)
1963                 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
1964                     ha->ct_sns, ha->ct_sns_dma);
1965
1966         if (ha->ms_iocb)
1967                 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
1968
1969         if (ha->iodesc_pd)
1970                 dma_pool_free(ha->s_dma_pool, ha->iodesc_pd, ha->iodesc_pd_dma);
1971
1972         if (ha->init_cb)
1973                 dma_pool_free(ha->s_dma_pool, ha->init_cb, ha->init_cb_dma);
1974
1975         if (ha->s_dma_pool)
1976                 dma_pool_destroy(ha->s_dma_pool);
1977
1978         if (ha->rlc_rsp)
1979                 dma_free_coherent(&ha->pdev->dev,
1980                     sizeof(rpt_lun_cmd_rsp_t), ha->rlc_rsp,
1981                     ha->rlc_rsp_dma);
1982
1983         if (ha->gid_list)
1984                 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
1985                     ha->gid_list_dma);
1986
1987         if (ha->response_ring)
1988                 dma_free_coherent(&ha->pdev->dev,
1989                     (ha->response_q_length + 1) * sizeof(response_t),
1990                     ha->response_ring, ha->response_dma);
1991
1992         if (ha->request_ring)
1993                 dma_free_coherent(&ha->pdev->dev,
1994                     (ha->request_q_length + 1) * sizeof(request_t),
1995                     ha->request_ring, ha->request_dma);
1996
1997         ha->sns_cmd = NULL;
1998         ha->sns_cmd_dma = 0;
1999         ha->ct_sns = NULL;
2000         ha->ct_sns_dma = 0;
2001         ha->ms_iocb = NULL;
2002         ha->ms_iocb_dma = 0;
2003         ha->iodesc_pd = NULL;
2004         ha->iodesc_pd_dma = 0;
2005         ha->init_cb = NULL;
2006         ha->init_cb_dma = 0;
2007
2008         ha->s_dma_pool = NULL;
2009
2010         ha->rlc_rsp = NULL;
2011         ha->rlc_rsp_dma = 0;
2012         ha->gid_list = NULL;
2013         ha->gid_list_dma = 0;
2014
2015         ha->response_ring = NULL;
2016         ha->response_dma = 0;
2017         ha->request_ring = NULL;
2018         ha->request_dma = 0;
2019
2020         list_for_each_safe(fcpl, fcptemp, &ha->fcports) {
2021                 fcport = list_entry(fcpl, fc_port_t, list);
2022
2023                 /* fc ports */
2024                 list_del_init(&fcport->list);
2025                 kfree(fcport);
2026         }
2027         INIT_LIST_HEAD(&ha->fcports);
2028
2029         if (ha->fw_dump)
2030                 free_pages((unsigned long)ha->fw_dump, ha->fw_dump_order);
2031
2032         vfree(ha->fw_dump24);
2033
2034         vfree(ha->fw_dump_buffer);
2035
2036         ha->fw_dump = NULL;
2037         ha->fw_dump24 = NULL;
2038         ha->fw_dumped = 0;
2039         ha->fw_dump_reading = 0;
2040         ha->fw_dump_buffer = NULL;
2041 }
2042
2043 /*
2044  * qla2x00_allocate_sp_pool
2045  *       This routine is called during initialization to allocate
2046  *       memory for local srb_t.
2047  *
2048  * Input:
2049  *       ha   = adapter block pointer.
2050  *
2051  * Context:
2052  *      Kernel context.
2053  *
2054  * Note: Sets the ref_count for non Null sp to one.
2055  */
2056 static int
2057 qla2x00_allocate_sp_pool(scsi_qla_host_t *ha)
2058 {
2059         int      rval;
2060
2061         rval = QLA_SUCCESS;
2062         ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab,
2063             mempool_free_slab, srb_cachep);
2064         if (ha->srb_mempool == NULL) {
2065                 qla_printk(KERN_INFO, ha, "Unable to allocate SRB mempool.\n");
2066                 rval = QLA_FUNCTION_FAILED;
2067         }
2068         return (rval);
2069 }
2070
2071 /*
2072  *  This routine frees all adapter allocated memory.
2073  *
2074  */
2075 static void
2076 qla2x00_free_sp_pool( scsi_qla_host_t *ha)
2077 {
2078         if (ha->srb_mempool) {
2079                 mempool_destroy(ha->srb_mempool);
2080                 ha->srb_mempool = NULL;
2081         }
2082 }
2083
2084 /**************************************************************************
2085 * qla2x00_do_dpc
2086 *   This kernel thread is a task that is schedule by the interrupt handler
2087 *   to perform the background processing for interrupts.
2088 *
2089 * Notes:
2090 * This task always run in the context of a kernel thread.  It
2091 * is kick-off by the driver's detect code and starts up
2092 * up one per adapter. It immediately goes to sleep and waits for
2093 * some fibre event.  When either the interrupt handler or
2094 * the timer routine detects a event it will one of the task
2095 * bits then wake us up.
2096 **************************************************************************/
2097 static int
2098 qla2x00_do_dpc(void *data)
2099 {
2100         DECLARE_MUTEX_LOCKED(sem);
2101         scsi_qla_host_t *ha;
2102         fc_port_t       *fcport;
2103         uint8_t         status;
2104         uint16_t        next_loopid;
2105
2106         ha = (scsi_qla_host_t *)data;
2107
2108         lock_kernel();
2109
2110         daemonize("%s_dpc", ha->host_str);
2111         allow_signal(SIGHUP);
2112
2113         ha->dpc_wait = &sem;
2114
2115         set_user_nice(current, -20);
2116
2117         unlock_kernel();
2118
2119         complete(&ha->dpc_inited);
2120
2121         while (1) {
2122                 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2123
2124                 if (down_interruptible(&sem))
2125                         break;
2126
2127                 if (ha->dpc_should_die)
2128                         break;
2129
2130                 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2131
2132                 /* Initialization not yet finished. Don't do anything yet. */
2133                 if (!ha->flags.init_done || ha->dpc_active)
2134                         continue;
2135
2136                 DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no));
2137
2138                 ha->dpc_active = 1;
2139
2140                 if (ha->flags.mbox_busy) {
2141                         ha->dpc_active = 0;
2142                         continue;
2143                 }
2144
2145                 if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2146
2147                         DEBUG(printk("scsi(%ld): dpc: sched "
2148                             "qla2x00_abort_isp ha = %p\n",
2149                             ha->host_no, ha));
2150                         if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2151                             &ha->dpc_flags))) {
2152
2153                                 if (qla2x00_abort_isp(ha)) {
2154                                         /* failed. retry later */
2155                                         set_bit(ISP_ABORT_NEEDED,
2156                                             &ha->dpc_flags);
2157                                 }
2158                                 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2159                         }
2160                         DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2161                             ha->host_no));
2162                 }
2163
2164                 if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) &&
2165                     (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) {
2166
2167                         DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2168                             ha->host_no));
2169
2170                         qla2x00_rst_aen(ha);
2171                         clear_bit(RESET_ACTIVE, &ha->dpc_flags);
2172                 }
2173
2174                 /* Retry each device up to login retry count */
2175                 if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2176                     !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) &&
2177                     atomic_read(&ha->loop_state) != LOOP_DOWN) {
2178
2179                         DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2180                             ha->host_no));
2181
2182                         next_loopid = 0;
2183                         list_for_each_entry(fcport, &ha->fcports, list) {
2184                                 if (fcport->port_type != FCT_TARGET)
2185                                         continue;
2186
2187                                 /*
2188                                  * If the port is not ONLINE then try to login
2189                                  * to it if we haven't run out of retries.
2190                                  */
2191                                 if (atomic_read(&fcport->state) != FCS_ONLINE &&
2192                                     fcport->login_retry) {
2193
2194                                         fcport->login_retry--;
2195                                         if (fcport->flags & FCF_FABRIC_DEVICE) {
2196                                                 if (fcport->flags &
2197                                                     FCF_TAPE_PRESENT)
2198                                                         ha->isp_ops.fabric_logout(
2199                                                             ha, fcport->loop_id,
2200                                                             fcport->d_id.b.domain,
2201                                                             fcport->d_id.b.area,
2202                                                             fcport->d_id.b.al_pa);
2203                                                 status = qla2x00_fabric_login(
2204                                                     ha, fcport, &next_loopid);
2205                                         } else
2206                                                 status =
2207                                                     qla2x00_local_device_login(
2208                                                         ha, fcport->loop_id);
2209
2210                                         if (status == QLA_SUCCESS) {
2211                                                 fcport->old_loop_id = fcport->loop_id;
2212
2213                                                 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2214                                                     ha->host_no, fcport->loop_id));
2215
2216                                                 fcport->port_login_retry_count =
2217                                                     ha->port_down_retry_count * PORT_RETRY_TIME;
2218                                                 atomic_set(&fcport->state, FCS_ONLINE);
2219                                                 atomic_set(&fcport->port_down_timer,
2220                                                     ha->port_down_retry_count * PORT_RETRY_TIME);
2221
2222                                                 fcport->login_retry = 0;
2223                                         } else if (status == 1) {
2224                                                 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
2225                                                 /* retry the login again */
2226                                                 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2227                                                     ha->host_no,
2228                                                     fcport->login_retry, fcport->loop_id));
2229                                         } else {
2230                                                 fcport->login_retry = 0;
2231                                         }
2232                                 }
2233                                 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2234                                         break;
2235                         }
2236                         DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2237                             ha->host_no));
2238                 }
2239
2240                 if ((test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags)) &&
2241                     atomic_read(&ha->loop_state) != LOOP_DOWN) {
2242
2243                         clear_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags);
2244                         DEBUG(printk("scsi(%ld): qla2x00_login_retry()\n",
2245                             ha->host_no));
2246
2247                         set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2248
2249                         DEBUG(printk("scsi(%ld): qla2x00_login_retry - end\n",
2250                             ha->host_no));
2251                 }
2252
2253                 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2254
2255                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2256                             ha->host_no));
2257
2258                         if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2259                             &ha->dpc_flags))) {
2260
2261                                 qla2x00_loop_resync(ha);
2262
2263                                 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
2264                         }
2265
2266                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2267                             ha->host_no));
2268                 }
2269
2270                 if (test_and_clear_bit(FCPORT_RESCAN_NEEDED, &ha->dpc_flags)) {
2271
2272                         DEBUG(printk("scsi(%ld): Rescan flagged fcports...\n",
2273                             ha->host_no));
2274
2275                         qla2x00_rescan_fcports(ha);
2276
2277                         DEBUG(printk("scsi(%ld): Rescan flagged fcports..."
2278                             "end.\n",
2279                             ha->host_no));
2280                 }
2281
2282                 if (!ha->interrupts_on)
2283                         ha->isp_ops.enable_intrs(ha);
2284
2285                 ha->dpc_active = 0;
2286         } /* End of while(1) */
2287
2288         DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no));
2289
2290         /*
2291          * Make sure that nobody tries to wake us up again.
2292          */
2293         ha->dpc_wait = NULL;
2294         ha->dpc_active = 0;
2295
2296         complete_and_exit(&ha->dpc_exited, 0);
2297 }
2298
2299 /*
2300 *  qla2x00_rst_aen
2301 *      Processes asynchronous reset.
2302 *
2303 * Input:
2304 *      ha  = adapter block pointer.
2305 */
2306 static void
2307 qla2x00_rst_aen(scsi_qla_host_t *ha)
2308 {
2309         if (ha->flags.online && !ha->flags.reset_active &&
2310             !atomic_read(&ha->loop_down_timer) &&
2311             !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
2312                 do {
2313                         clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2314
2315                         /*
2316                          * Issue marker command only when we are going to start
2317                          * the I/O.
2318                          */
2319                         ha->marker_needed = 1;
2320                 } while (!atomic_read(&ha->loop_down_timer) &&
2321                     (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags)));
2322         }
2323 }
2324
2325 static void
2326 qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp)
2327 {
2328         struct scsi_cmnd *cmd = sp->cmd;
2329
2330         if (sp->flags & SRB_DMA_VALID) {
2331                 if (cmd->use_sg) {
2332                         dma_unmap_sg(&ha->pdev->dev, cmd->request_buffer,
2333                             cmd->use_sg, cmd->sc_data_direction);
2334                 } else if (cmd->request_bufflen) {
2335                         dma_unmap_single(&ha->pdev->dev, sp->dma_handle,
2336                             cmd->request_bufflen, cmd->sc_data_direction);
2337                 }
2338                 sp->flags &= ~SRB_DMA_VALID;
2339         }
2340         CMD_SP(cmd) = NULL;
2341 }
2342
2343 void
2344 qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp)
2345 {
2346         struct scsi_cmnd *cmd = sp->cmd;
2347
2348         qla2x00_sp_free_dma(ha, sp);
2349
2350         mempool_free(sp, ha->srb_mempool);
2351
2352         cmd->scsi_done(cmd);
2353 }
2354
2355 /**************************************************************************
2356 *   qla2x00_timer
2357 *
2358 * Description:
2359 *   One second timer
2360 *
2361 * Context: Interrupt
2362 ***************************************************************************/
2363 static void
2364 qla2x00_timer(scsi_qla_host_t *ha)
2365 {
2366         unsigned long   cpu_flags = 0;
2367         fc_port_t       *fcport;
2368         int             start_dpc = 0;
2369         int             index;
2370         srb_t           *sp;
2371         int             t;
2372
2373         /*
2374          * Ports - Port down timer.
2375          *
2376          * Whenever, a port is in the LOST state we start decrementing its port
2377          * down timer every second until it reaches zero. Once  it reaches zero
2378          * the port it marked DEAD.
2379          */
2380         t = 0;
2381         list_for_each_entry(fcport, &ha->fcports, list) {
2382                 if (fcport->port_type != FCT_TARGET)
2383                         continue;
2384
2385                 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2386
2387                         if (atomic_read(&fcport->port_down_timer) == 0)
2388                                 continue;
2389
2390                         if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
2391                                 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
2392
2393                         DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
2394                             "%d remaining\n",
2395                             ha->host_no,
2396                             t, atomic_read(&fcport->port_down_timer)));
2397                 }
2398                 t++;
2399         } /* End of for fcport  */
2400
2401
2402         /* Loop down handler. */
2403         if (atomic_read(&ha->loop_down_timer) > 0 &&
2404             !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) {
2405
2406                 if (atomic_read(&ha->loop_down_timer) ==
2407                     ha->loop_down_abort_time) {
2408
2409                         DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2410                             "queues before time expire\n",
2411                             ha->host_no));
2412
2413                         if (!IS_QLA2100(ha) && ha->link_down_timeout)
2414                                 atomic_set(&ha->loop_state, LOOP_DEAD);
2415
2416                         /* Schedule an ISP abort to return any tape commands. */
2417                         spin_lock_irqsave(&ha->hardware_lock, cpu_flags);
2418                         for (index = 1; index < MAX_OUTSTANDING_COMMANDS;
2419                             index++) {
2420                                 fc_port_t *sfcp;
2421
2422                                 sp = ha->outstanding_cmds[index];
2423                                 if (!sp)
2424                                         continue;
2425                                 sfcp = sp->fcport;
2426                                 if (!(sfcp->flags & FCF_TAPE_PRESENT))
2427                                         continue;
2428
2429                                 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2430                                 break;
2431                         }
2432                         spin_unlock_irqrestore(&ha->hardware_lock, cpu_flags);
2433
2434                         set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags);
2435                         start_dpc++;
2436                 }
2437
2438                 /* if the loop has been down for 4 minutes, reinit adapter */
2439                 if (atomic_dec_and_test(&ha->loop_down_timer) != 0) {
2440                         DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2441                             "restarting queues.\n",
2442                             ha->host_no));
2443
2444                         set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags);
2445                         start_dpc++;
2446
2447                         if (!(ha->device_flags & DFLG_NO_CABLE)) {
2448                                 DEBUG(printk("scsi(%ld): Loop down - "
2449                                     "aborting ISP.\n",
2450                                     ha->host_no));
2451                                 qla_printk(KERN_WARNING, ha,
2452                                     "Loop down - aborting ISP.\n");
2453
2454                                 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2455                         }
2456                 }
2457                 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
2458                     ha->host_no,
2459                     atomic_read(&ha->loop_down_timer)));
2460         }
2461
2462         /* Schedule the DPC routine if needed */
2463         if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) ||
2464             test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) ||
2465             start_dpc ||
2466             test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags) ||
2467             test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) ||
2468             test_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2469             ha->dpc_wait && !ha->dpc_active) {
2470
2471                 up(ha->dpc_wait);
2472         }
2473
2474         qla2x00_restart_timer(ha, WATCH_INTERVAL);
2475 }
2476
2477 /* XXX(hch): crude hack to emulate a down_timeout() */
2478 int
2479 qla2x00_down_timeout(struct semaphore *sema, unsigned long timeout)
2480 {
2481         const unsigned int step = HZ/10;
2482
2483         do {
2484                 if (!down_trylock(sema))
2485                         return 0;
2486                 set_current_state(TASK_INTERRUPTIBLE);
2487                 if (schedule_timeout(step))
2488                         break;
2489         } while ((timeout -= step) > 0);
2490
2491         return -ETIMEDOUT;
2492 }
2493
2494 static struct qla_board_info qla_board_tbl[] = {
2495         {
2496                 .drv_name       = "qla2400",
2497                 .isp_name       = "ISP2422",
2498                 .fw_fname       = "ql2400_fw.bin",
2499                 .sht            = &qla24xx_driver_template,
2500         },
2501         {
2502                 .drv_name       = "qla2400",
2503                 .isp_name       = "ISP2432",
2504                 .fw_fname       = "ql2400_fw.bin",
2505                 .sht            = &qla24xx_driver_template,
2506         },
2507 };
2508
2509 static struct pci_device_id qla2xxx_pci_tbl[] = {
2510         {
2511                 .vendor         = PCI_VENDOR_ID_QLOGIC,
2512                 .device         = PCI_DEVICE_ID_QLOGIC_ISP2422,
2513                 .subvendor      = PCI_ANY_ID,
2514                 .subdevice      = PCI_ANY_ID,
2515                 .driver_data    = (unsigned long)&qla_board_tbl[0],
2516         },
2517         {
2518                 .vendor         = PCI_VENDOR_ID_QLOGIC,
2519                 .device         = PCI_DEVICE_ID_QLOGIC_ISP2432,
2520                 .subvendor      = PCI_ANY_ID,
2521                 .subdevice      = PCI_ANY_ID,
2522                 .driver_data    = (unsigned long)&qla_board_tbl[1],
2523         },
2524         {0, 0},
2525 };
2526 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
2527
2528 static int __devinit
2529 qla2xxx_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
2530 {
2531         return qla2x00_probe_one(pdev,
2532             (struct qla_board_info *)id->driver_data);
2533 }
2534
2535 static void __devexit
2536 qla2xxx_remove_one(struct pci_dev *pdev)
2537 {
2538         qla2x00_remove_one(pdev);
2539 }
2540
2541 static struct pci_driver qla2xxx_pci_driver = {
2542         .name           = "qla2xxx",
2543         .id_table       = qla2xxx_pci_tbl,
2544         .probe          = qla2xxx_probe_one,
2545         .remove         = __devexit_p(qla2xxx_remove_one),
2546 };
2547
2548 /**
2549  * qla2x00_module_init - Module initialization.
2550  **/
2551 static int __init
2552 qla2x00_module_init(void)
2553 {
2554         int ret = 0;
2555
2556         /* Allocate cache for SRBs. */
2557         srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
2558             SLAB_HWCACHE_ALIGN, NULL, NULL);
2559         if (srb_cachep == NULL) {
2560                 printk(KERN_ERR
2561                     "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2562                 return -ENOMEM;
2563         }
2564
2565         /* Derive version string. */
2566         strcpy(qla2x00_version_str, QLA2XXX_VERSION);
2567 #if DEBUG_QLA2100
2568         strcat(qla2x00_version_str, "-debug");
2569 #endif
2570         qla2xxx_transport_template =
2571             fc_attach_transport(&qla2xxx_transport_functions);
2572         if (!qla2xxx_transport_template)
2573                 return -ENODEV;
2574
2575         printk(KERN_INFO "QLogic Fibre Channel HBA Driver\n");
2576         ret = pci_module_init(&qla2xxx_pci_driver);
2577         if (ret) {
2578                 kmem_cache_destroy(srb_cachep);
2579                 fc_release_transport(qla2xxx_transport_template);
2580         }
2581         return ret;
2582 }
2583
2584 /**
2585  * qla2x00_module_exit - Module cleanup.
2586  **/
2587 static void __exit
2588 qla2x00_module_exit(void)
2589 {
2590         pci_unregister_driver(&qla2xxx_pci_driver);
2591         kmem_cache_destroy(srb_cachep);
2592         fc_release_transport(qla2xxx_transport_template);
2593 }
2594
2595 module_init(qla2x00_module_init);
2596 module_exit(qla2x00_module_exit);
2597
2598 MODULE_AUTHOR("QLogic Corporation");
2599 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
2600 MODULE_LICENSE("GPL");
2601 MODULE_VERSION(QLA2XXX_VERSION);