git.oblomov.eu Git - linux-2.6/blob - 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 ql2xloginretrycount = 0;
  65 module_param(ql2xloginretrycount, int, S_IRUGO|S_IRUSR);
  66 MODULE_PARM_DESC(ql2xloginretrycount,
  67                 "Specify an alternate value for the NVRAM login retry count.");
  68
  69 int ql2xfwloadbin=1;
  70 module_param(ql2xfwloadbin, int, S_IRUGO|S_IRUSR);
  71 MODULE_PARM_DESC(ql2xfwloadbin,
  72                 "Load ISP2xxx firmware image via hotplug.");
  73
  74 static void qla2x00_free_device(scsi_qla_host_t *);
  75
  76 static void qla2x00_config_dma_addressing(scsi_qla_host_t *ha);
  77
  78 int ql2xfdmienable;
  79 module_param(ql2xfdmienable, int, S_IRUGO|S_IRUSR);
  80 MODULE_PARM_DESC(ql2xfdmienable,
  81                 "Enables FDMI registratons "
  82                 "Default is 0 - no FDMI. 1 - perfom FDMI.");
  83
  84 /*
  85  * SCSI host template entry points
  86  */
  87 static int qla2xxx_slave_configure(struct scsi_device * device);
  88 static int qla2xxx_slave_alloc(struct scsi_device *);
  89 static void qla2xxx_slave_destroy(struct scsi_device *);
  90 static int qla2x00_queuecommand(struct scsi_cmnd *cmd,
  91                 void (*fn)(struct scsi_cmnd *));
  92 static int qla24xx_queuecommand(struct scsi_cmnd *cmd,
  93                 void (*fn)(struct scsi_cmnd *));
  94 static int qla2xxx_eh_abort(struct scsi_cmnd *);
  95 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
  96 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
  97 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
  98 static int qla2x00_loop_reset(scsi_qla_host_t *ha);
  99 static int qla2x00_device_reset(scsi_qla_host_t *, fc_port_t *);
 100
 101 static int qla2x00_change_queue_depth(struct scsi_device *, int);
 102 static int qla2x00_change_queue_type(struct scsi_device *, int);
 103
 104 static struct scsi_host_template qla2x00_driver_template = {
 105         .module                 = THIS_MODULE,
 106         .name                   = "qla2xxx",
 107         .queuecommand           = qla2x00_queuecommand,
 108
 109         .eh_abort_handler       = qla2xxx_eh_abort,
 110         .eh_device_reset_handler = qla2xxx_eh_device_reset,
 111         .eh_bus_reset_handler   = qla2xxx_eh_bus_reset,
 112         .eh_host_reset_handler  = qla2xxx_eh_host_reset,
 113
 114         .slave_configure        = qla2xxx_slave_configure,
 115
 116         .slave_alloc            = qla2xxx_slave_alloc,
 117         .slave_destroy          = qla2xxx_slave_destroy,
 118         .change_queue_depth     = qla2x00_change_queue_depth,
 119         .change_queue_type      = qla2x00_change_queue_type,
 120         .this_id                = -1,
 121         .cmd_per_lun            = 3,
 122         .use_clustering         = ENABLE_CLUSTERING,
 123         .sg_tablesize           = SG_ALL,
 124
 125         /*
 126          * The RISC allows for each command to transfer (2^32-1) bytes of data,
 127          * which equates to 0x800000 sectors.
 128          */
 129         .max_sectors            = 0xFFFF,
 130         .shost_attrs            = qla2x00_host_attrs,
 131 };
 132
 133 static struct scsi_host_template qla24xx_driver_template = {
 134         .module                 = THIS_MODULE,
 135         .name                   = "qla2xxx",
 136         .queuecommand           = qla24xx_queuecommand,
 137
 138         .eh_abort_handler       = qla2xxx_eh_abort,
 139         .eh_device_reset_handler = qla2xxx_eh_device_reset,
 140         .eh_bus_reset_handler   = qla2xxx_eh_bus_reset,
 141         .eh_host_reset_handler  = qla2xxx_eh_host_reset,
 142
 143         .slave_configure        = qla2xxx_slave_configure,
 144
 145         .slave_alloc            = qla2xxx_slave_alloc,
 146         .slave_destroy          = qla2xxx_slave_destroy,
 147         .change_queue_depth     = qla2x00_change_queue_depth,
 148         .change_queue_type      = qla2x00_change_queue_type,
 149         .this_id                = -1,
 150         .cmd_per_lun            = 3,
 151         .use_clustering         = ENABLE_CLUSTERING,
 152         .sg_tablesize           = SG_ALL,
 153
 154         .max_sectors            = 0xFFFF,
 155         .shost_attrs            = qla2x00_host_attrs,
 156 };
 157
 158 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
 159
 160 /* TODO Convert to inlines
 161  *
 162  * Timer routines
 163  */
 164 #define WATCH_INTERVAL          1       /* number of seconds */
 165
 166 static void qla2x00_timer(scsi_qla_host_t *);
 167
 168 static __inline__ void qla2x00_start_timer(scsi_qla_host_t *,
 169     void *, unsigned long);
 170 static __inline__ void qla2x00_restart_timer(scsi_qla_host_t *, unsigned long);
 171 static __inline__ void qla2x00_stop_timer(scsi_qla_host_t *);
 172
 173 static inline void
 174 qla2x00_start_timer(scsi_qla_host_t *ha, void *func, unsigned long interval)
 175 {
 176         init_timer(&ha->timer);
 177         ha->timer.expires = jiffies + interval * HZ;
 178         ha->timer.data = (unsigned long)ha;
 179         ha->timer.function = (void (*)(unsigned long))func;
 180         add_timer(&ha->timer);
 181         ha->timer_active = 1;
 182 }
 183
 184 static inline void
 185 qla2x00_restart_timer(scsi_qla_host_t *ha, unsigned long interval)
 186 {
 187         mod_timer(&ha->timer, jiffies + interval * HZ);
 188 }
 189
 190 static __inline__ void
 191 qla2x00_stop_timer(scsi_qla_host_t *ha)
 192 {
 193         del_timer_sync(&ha->timer);
 194         ha->timer_active = 0;
 195 }
 196
 197 static int qla2x00_do_dpc(void *data);
 198
 199 static void qla2x00_rst_aen(scsi_qla_host_t *);
 200
 201 static uint8_t qla2x00_mem_alloc(scsi_qla_host_t *);
 202 static void qla2x00_mem_free(scsi_qla_host_t *ha);
 203 static int qla2x00_allocate_sp_pool( scsi_qla_host_t *ha);
 204 static void qla2x00_free_sp_pool(scsi_qla_host_t *ha);
 205 static void qla2x00_sp_free_dma(scsi_qla_host_t *, srb_t *);
 206 void qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *);
 207
 208 /* -------------------------------------------------------------------------- */
 209
 210 static char *
 211 qla2x00_pci_info_str(struct scsi_qla_host *ha, char *str)
 212 {
 213         static char *pci_bus_modes[] = {
 214                 "33", "66", "100", "133",
 215         };
 216         uint16_t pci_bus;
 217
 218         strcpy(str, "PCI");
 219         pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
 220         if (pci_bus) {
 221                 strcat(str, "-X (");
 222                 strcat(str, pci_bus_modes[pci_bus]);
 223         } else {
 224                 pci_bus = (ha->pci_attr & BIT_8) >> 8;
 225                 strcat(str, " (");
 226                 strcat(str, pci_bus_modes[pci_bus]);
 227         }
 228         strcat(str, " MHz)");
 229
 230         return (str);
 231 }
 232
 233 static char *
 234 qla24xx_pci_info_str(struct scsi_qla_host *ha, char *str)
 235 {
 236         static char *pci_bus_modes[] = { "33", "66", "100", "133", };
 237         uint32_t pci_bus;
 238         int pcie_reg;
 239
 240         pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
 241         if (pcie_reg) {
 242                 char lwstr[6];
 243                 uint16_t pcie_lstat, lspeed, lwidth;
 244
 245                 pcie_reg += 0x12;
 246                 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
 247                 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
 248                 lwidth = (pcie_lstat &
 249                     (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
 250
 251                 strcpy(str, "PCIe (");
 252                 if (lspeed == 1)
 253                         strcat(str, "2.5Gb/s ");
 254                 else
 255                         strcat(str, "<unknown> ");
 256                 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
 257                 strcat(str, lwstr);
 258
 259                 return str;
 260         }
 261
 262         strcpy(str, "PCI");
 263         pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
 264         if (pci_bus == 0 || pci_bus == 8) {
 265                 strcat(str, " (");
 266                 strcat(str, pci_bus_modes[pci_bus >> 3]);
 267         } else {
 268                 strcat(str, "-X ");
 269                 if (pci_bus & BIT_2)
 270                         strcat(str, "Mode 2");
 271                 else
 272                         strcat(str, "Mode 1");
 273                 strcat(str, " (");
 274                 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
 275         }
 276         strcat(str, " MHz)");
 277
 278         return str;
 279 }
 280
 281 char *
 282 qla2x00_fw_version_str(struct scsi_qla_host *ha, char *str)
 283 {
 284         char un_str[10];
 285
 286         sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
 287             ha->fw_minor_version,
 288             ha->fw_subminor_version);
 289
 290         if (ha->fw_attributes & BIT_9) {
 291                 strcat(str, "FLX");
 292                 return (str);
 293         }
 294
 295         switch (ha->fw_attributes & 0xFF) {
 296         case 0x7:
 297                 strcat(str, "EF");
 298                 break;
 299         case 0x17:
 300                 strcat(str, "TP");
 301                 break;
 302         case 0x37:
 303                 strcat(str, "IP");
 304                 break;
 305         case 0x77:
 306                 strcat(str, "VI");
 307                 break;
 308         default:
 309                 sprintf(un_str, "(%x)", ha->fw_attributes);
 310                 strcat(str, un_str);
 311                 break;
 312         }
 313         if (ha->fw_attributes & 0x100)
 314                 strcat(str, "X");
 315
 316         return (str);
 317 }
 318
 319 char *
 320 qla24xx_fw_version_str(struct scsi_qla_host *ha, char *str)
 321 {
 322         sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
 323             ha->fw_minor_version,
 324             ha->fw_subminor_version);
 325
 326         if (ha->fw_attributes & BIT_0)
 327                 strcat(str, "[Class 2] ");
 328         if (ha->fw_attributes & BIT_1)
 329                 strcat(str, "[IP] ");
 330         if (ha->fw_attributes & BIT_2)
 331                 strcat(str, "[Multi-ID] ");
 332         if (ha->fw_attributes & BIT_13)
 333                 strcat(str, "[Experimental]");
 334         return str;
 335 }
 336
 337 static inline srb_t *
 338 qla2x00_get_new_sp(scsi_qla_host_t *ha, fc_port_t *fcport,
 339     struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 340 {
 341         srb_t *sp;
 342
 343         sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
 344         if (!sp)
 345                 return sp;
 346
 347         atomic_set(&sp->ref_count, 1);
 348         sp->ha = ha;
 349         sp->fcport = fcport;
 350         sp->cmd = cmd;
 351         sp->flags = 0;
 352         CMD_SP(cmd) = (void *)sp;
 353         cmd->scsi_done = done;
 354
 355         return sp;
 356 }
 357
 358 static int
 359 qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 360 {
 361         scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
 362         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 363         srb_t *sp;
 364         int rval;
 365
 366         if (!fcport) {
 367                 cmd->result = DID_NO_CONNECT << 16;
 368                 goto qc_fail_command;
 369         }
 370
 371         if (atomic_read(&fcport->state) != FCS_ONLINE) {
 372                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
 373                     atomic_read(&ha->loop_state) == LOOP_DEAD) {
 374                         cmd->result = DID_NO_CONNECT << 16;
 375                         goto qc_fail_command;
 376                 }
 377                 goto qc_host_busy;
 378         }
 379
 380         spin_unlock_irq(ha->host->host_lock);
 381
 382         sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
 383         if (!sp)
 384                 goto qc_host_busy_lock;
 385
 386         rval = qla2x00_start_scsi(sp);
 387         if (rval != QLA_SUCCESS)
 388                 goto qc_host_busy_free_sp;
 389
 390         spin_lock_irq(ha->host->host_lock);
 391
 392         return 0;
 393
 394 qc_host_busy_free_sp:
 395         qla2x00_sp_free_dma(ha, sp);
 396         mempool_free(sp, ha->srb_mempool);
 397
 398 qc_host_busy_lock:
 399         spin_lock_irq(ha->host->host_lock);
 400
 401 qc_host_busy:
 402         return SCSI_MLQUEUE_HOST_BUSY;
 403
 404 qc_fail_command:
 405         done(cmd);
 406
 407         return 0;
 408 }
 409
 410
 411 static int
 412 qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 413 {
 414         scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
 415         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 416         srb_t *sp;
 417         int rval;
 418
 419         if (!fcport) {
 420                 cmd->result = DID_NO_CONNECT << 16;
 421                 goto qc24_fail_command;
 422         }
 423
 424         if (atomic_read(&fcport->state) != FCS_ONLINE) {
 425                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
 426                     atomic_read(&ha->loop_state) == LOOP_DEAD) {
 427                         cmd->result = DID_NO_CONNECT << 16;
 428                         goto qc24_fail_command;
 429                 }
 430                 goto qc24_host_busy;
 431         }
 432
 433         spin_unlock_irq(ha->host->host_lock);
 434
 435         sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
 436         if (!sp)
 437                 goto qc24_host_busy_lock;
 438
 439         rval = qla24xx_start_scsi(sp);
 440         if (rval != QLA_SUCCESS)
 441                 goto qc24_host_busy_free_sp;
 442
 443         spin_lock_irq(ha->host->host_lock);
 444
 445         return 0;
 446
 447 qc24_host_busy_free_sp:
 448         qla2x00_sp_free_dma(ha, sp);
 449         mempool_free(sp, ha->srb_mempool);
 450
 451 qc24_host_busy_lock:
 452         spin_lock_irq(ha->host->host_lock);
 453
 454 qc24_host_busy:
 455         return SCSI_MLQUEUE_HOST_BUSY;
 456
 457 qc24_fail_command:
 458         done(cmd);
 459
 460         return 0;
 461 }
 462
 463
 464 /*
 465  * qla2x00_eh_wait_on_command
 466  *    Waits for the command to be returned by the Firmware for some
 467  *    max time.
 468  *
 469  * Input:
 470  *    ha = actual ha whose done queue will contain the command
 471  *            returned by firmware.
 472  *    cmd = Scsi Command to wait on.
 473  *    flag = Abort/Reset(Bus or Device Reset)
 474  *
 475  * Return:
 476  *    Not Found : 0
 477  *    Found : 1
 478  */
 479 static int
 480 qla2x00_eh_wait_on_command(scsi_qla_host_t *ha, struct scsi_cmnd *cmd)
 481 {
 482 #define ABORT_POLLING_PERIOD    1000
 483 #define ABORT_WAIT_ITER         ((10 * 1000) / (ABORT_POLLING_PERIOD))
 484         unsigned long wait_iter = ABORT_WAIT_ITER;
 485         int ret = QLA_SUCCESS;
 486
 487         while (CMD_SP(cmd)) {
 488                 msleep(ABORT_POLLING_PERIOD);
 489
 490                 if (--wait_iter)
 491                         break;
 492         }
 493         if (CMD_SP(cmd))
 494                 ret = QLA_FUNCTION_FAILED;
 495
 496         return ret;
 497 }
 498
 499 /*
 500  * qla2x00_wait_for_hba_online
 501  *    Wait till the HBA is online after going through
 502  *    <= MAX_RETRIES_OF_ISP_ABORT  or
 503  *    finally HBA is disabled ie marked offline
 504  *
 505  * Input:
 506  *     ha - pointer to host adapter structure
 507  *
 508  * Note:
 509  *    Does context switching-Release SPIN_LOCK
 510  *    (if any) before calling this routine.
 511  *
 512  * Return:
 513  *    Success (Adapter is online) : 0
 514  *    Failed  (Adapter is offline/disabled) : 1
 515  */
 516 static int
 517 qla2x00_wait_for_hba_online(scsi_qla_host_t *ha)
 518 {
 519         int             return_status;
 520         unsigned long   wait_online;
 521
 522         wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 523         while (((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) ||
 524             test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags) ||
 525             test_bit(ISP_ABORT_RETRY, &ha->dpc_flags) ||
 526             ha->dpc_active) && time_before(jiffies, wait_online)) {
 527
 528                 msleep(1000);
 529         }
 530         if (ha->flags.online)
 531                 return_status = QLA_SUCCESS;
 532         else
 533                 return_status = QLA_FUNCTION_FAILED;
 534
 535         DEBUG2(printk("%s return_status=%d\n",__func__,return_status));
 536
 537         return (return_status);
 538 }
 539
 540 /*
 541  * qla2x00_wait_for_loop_ready
 542  *    Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
 543  *    to be in LOOP_READY state.
 544  * Input:
 545  *     ha - pointer to host adapter structure
 546  *
 547  * Note:
 548  *    Does context switching-Release SPIN_LOCK
 549  *    (if any) before calling this routine.
 550  *
 551  *
 552  * Return:
 553  *    Success (LOOP_READY) : 0
 554  *    Failed  (LOOP_NOT_READY) : 1
 555  */
 556 static inline int
 557 qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha)
 558 {
 559         int      return_status = QLA_SUCCESS;
 560         unsigned long loop_timeout ;
 561
 562         /* wait for 5 min at the max for loop to be ready */
 563         loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 564
 565         while ((!atomic_read(&ha->loop_down_timer) &&
 566             atomic_read(&ha->loop_state) == LOOP_DOWN) ||
 567             atomic_read(&ha->loop_state) != LOOP_READY) {
 568                 msleep(1000);
 569                 if (time_after_eq(jiffies, loop_timeout)) {
 570                         return_status = QLA_FUNCTION_FAILED;
 571                         break;
 572                 }
 573         }
 574         return (return_status);
 575 }
 576
 577 /**************************************************************************
 578 * qla2xxx_eh_abort
 579 *
 580 * Description:
 581 *    The abort function will abort the specified command.
 582 *
 583 * Input:
 584 *    cmd = Linux SCSI command packet to be aborted.
 585 *
 586 * Returns:
 587 *    Either SUCCESS or FAILED.
 588 *
 589 * Note:
 590 **************************************************************************/
 591 int
 592 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
 593 {
 594         scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
 595         srb_t *sp;
 596         int ret, i;
 597         unsigned int id, lun;
 598         unsigned long serial;
 599         unsigned long flags;
 600
 601         if (!CMD_SP(cmd))
 602                 return FAILED;
 603
 604         ret = FAILED;
 605
 606         id = cmd->device->id;
 607         lun = cmd->device->lun;
 608         serial = cmd->serial_number;
 609
 610         /* Check active list for command command. */
 611         spin_lock_irqsave(&ha->hardware_lock, flags);
 612         for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
 613                 sp = ha->outstanding_cmds[i];
 614
 615                 if (sp == NULL)
 616                         continue;
 617
 618                 if (sp->cmd != cmd)
 619                         continue;
 620
 621                 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld "
 622                     "sp->state=%x\n", __func__, ha->host_no, sp, serial,
 623                     sp->state));
 624                 DEBUG3(qla2x00_print_scsi_cmd(cmd);)
 625
 626                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 627                 if (ha->isp_ops.abort_command(ha, sp)) {
 628                         DEBUG2(printk("%s(%ld): abort_command "
 629                             "mbx failed.\n", __func__, ha->host_no));
 630                 } else {
 631                         DEBUG3(printk("%s(%ld): abort_command "
 632                             "mbx success.\n", __func__, ha->host_no));
 633                         ret = SUCCESS;
 634                 }
 635                 spin_lock_irqsave(&ha->hardware_lock, flags);
 636
 637                 break;
 638         }
 639         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 640
 641         /* Wait for the command to be returned. */
 642         if (ret == SUCCESS) {
 643                 if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) {
 644                         qla_printk(KERN_ERR, ha,
 645                             "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
 646                             "%x.\n", ha->host_no, id, lun, serial, ret);
 647                 }
 648         }
 649
 650         qla_printk(KERN_INFO, ha,
 651             "scsi(%ld:%d:%d): Abort command issued -- %lx %x.\n", ha->host_no,
 652             id, lun, serial, ret);
 653
 654         return ret;
 655 }
 656
 657 /**************************************************************************
 658 * qla2x00_eh_wait_for_pending_target_commands
 659 *
 660 * Description:
 661 *    Waits for all the commands to come back from the specified target.
 662 *
 663 * Input:
 664 *    ha - pointer to scsi_qla_host structure.
 665 *    t  - target
 666 * Returns:
 667 *    Either SUCCESS or FAILED.
 668 *
 669 * Note:
 670 **************************************************************************/
 671 static int
 672 qla2x00_eh_wait_for_pending_target_commands(scsi_qla_host_t *ha, unsigned int t)
 673 {
 674         int     cnt;
 675         int     status;
 676         srb_t           *sp;
 677         struct scsi_cmnd *cmd;
 678         unsigned long flags;
 679
 680         status = 0;
 681
 682         /*
 683          * Waiting for all commands for the designated target in the active
 684          * array
 685          */
 686         for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
 687                 spin_lock_irqsave(&ha->hardware_lock, flags);
 688                 sp = ha->outstanding_cmds[cnt];
 689                 if (sp) {
 690                         cmd = sp->cmd;
 691                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 692                         if (cmd->device->id == t) {
 693                                 if (!qla2x00_eh_wait_on_command(ha, cmd)) {
 694                                         status = 1;
 695                                         break;
 696                                 }
 697                         }
 698                 } else {
 699                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 700                 }
 701         }
 702         return (status);
 703 }
 704
 705
 706 /**************************************************************************
 707 * qla2xxx_eh_device_reset
 708 *
 709 * Description:
 710 *    The device reset function will reset the target and abort any
 711 *    executing commands.
 712 *
 713 *    NOTE: The use of SP is undefined within this context.  Do *NOT*
 714 *          attempt to use this value, even if you determine it is
 715 *          non-null.
 716 *
 717 * Input:
 718 *    cmd = Linux SCSI command packet of the command that cause the
 719 *          bus device reset.
 720 *
 721 * Returns:
 722 *    SUCCESS/FAILURE (defined as macro in scsi.h).
 723 *
 724 **************************************************************************/
 725 int
 726 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
 727 {
 728         scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
 729         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 730         srb_t *sp;
 731         int ret;
 732         unsigned int id, lun;
 733         unsigned long serial;
 734
 735         ret = FAILED;
 736
 737         id = cmd->device->id;
 738         lun = cmd->device->lun;
 739         serial = cmd->serial_number;
 740
 741         sp = (srb_t *) CMD_SP(cmd);
 742         if (!sp || !fcport)
 743                 return ret;
 744
 745         qla_printk(KERN_INFO, ha,
 746             "scsi(%ld:%d:%d): DEVICE RESET ISSUED.\n", ha->host_no, id, lun);
 747
 748         if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
 749                 goto eh_dev_reset_done;
 750
 751         if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
 752                 if (qla2x00_device_reset(ha, fcport) == 0)
 753                         ret = SUCCESS;
 754
 755 #if defined(LOGOUT_AFTER_DEVICE_RESET)
 756                 if (ret == SUCCESS) {
 757                         if (fcport->flags & FC_FABRIC_DEVICE) {
 758                                 ha->isp_ops.fabric_logout(ha, fcport->loop_id);
 759                                 qla2x00_mark_device_lost(ha, fcport);
 760                         }
 761                 }
 762 #endif
 763         } else {
 764                 DEBUG2(printk(KERN_INFO
 765                     "%s failed: loop not ready\n",__func__);)
 766         }
 767
 768         if (ret == FAILED) {
 769                 DEBUG3(printk("%s(%ld): device reset failed\n",
 770                     __func__, ha->host_no));
 771                 qla_printk(KERN_INFO, ha, "%s: device reset failed\n",
 772                     __func__);
 773
 774                 goto eh_dev_reset_done;
 775         }
 776
 777         /*
 778          * If we are coming down the EH path, wait for all commands to
 779          * complete for the device.
 780          */
 781         if (cmd->device->host->eh_active) {
 782                 if (qla2x00_eh_wait_for_pending_target_commands(ha, id))
 783                         ret = FAILED;
 784
 785                 if (ret == FAILED) {
 786                         DEBUG3(printk("%s(%ld): failed while waiting for "
 787                             "commands\n", __func__, ha->host_no));
 788                         qla_printk(KERN_INFO, ha,
 789                             "%s: failed while waiting for commands\n",
 790                             __func__);
 791
 792                         goto eh_dev_reset_done;
 793                 }
 794         }
 795
 796         qla_printk(KERN_INFO, ha,
 797             "scsi(%ld:%d:%d): DEVICE RESET SUCCEEDED.\n", ha->host_no, id, lun);
 798
 799 eh_dev_reset_done:
 800         return ret;
 801 }
 802
 803 /**************************************************************************
 804 * qla2x00_eh_wait_for_pending_commands
 805 *
 806 * Description:
 807 *    Waits for all the commands to come back from the specified host.
 808 *
 809 * Input:
 810 *    ha - pointer to scsi_qla_host structure.
 811 *
 812 * Returns:
 813 *    1 : SUCCESS
 814 *    0 : FAILED
 815 *
 816 * Note:
 817 **************************************************************************/
 818 static int
 819 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha)
 820 {
 821         int     cnt;
 822         int     status;
 823         srb_t           *sp;
 824         struct scsi_cmnd *cmd;
 825         unsigned long flags;
 826
 827         status = 1;
 828
 829         /*
 830          * Waiting for all commands for the designated target in the active
 831          * array
 832          */
 833         for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
 834                 spin_lock_irqsave(&ha->hardware_lock, flags);
 835                 sp = ha->outstanding_cmds[cnt];
 836                 if (sp) {
 837                         cmd = sp->cmd;
 838                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 839                         status = qla2x00_eh_wait_on_command(ha, cmd);
 840                         if (status == 0)
 841                                 break;
 842                 }
 843                 else {
 844                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 845                 }
 846         }
 847         return (status);
 848 }
 849
 850
 851 /**************************************************************************
 852 * qla2xxx_eh_bus_reset
 853 *
 854 * Description:
 855 *    The bus reset function will reset the bus and abort any executing
 856 *    commands.
 857 *
 858 * Input:
 859 *    cmd = Linux SCSI command packet of the command that cause the
 860 *          bus reset.
 861 *
 862 * Returns:
 863 *    SUCCESS/FAILURE (defined as macro in scsi.h).
 864 *
 865 **************************************************************************/
 866 int
 867 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
 868 {
 869         scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
 870         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 871         srb_t *sp;
 872         int ret;
 873         unsigned int id, lun;
 874         unsigned long serial;
 875
 876         ret = FAILED;
 877
 878         id = cmd->device->id;
 879         lun = cmd->device->lun;
 880         serial = cmd->serial_number;
 881
 882         sp = (srb_t *) CMD_SP(cmd);
 883         if (!sp || !fcport)
 884                 return ret;
 885
 886         qla_printk(KERN_INFO, ha,
 887             "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun);
 888
 889         if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) {
 890                 DEBUG2(printk("%s failed:board disabled\n",__func__));
 891                 goto eh_bus_reset_done;
 892         }
 893
 894         if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
 895                 if (qla2x00_loop_reset(ha) == QLA_SUCCESS)
 896                         ret = SUCCESS;
 897         }
 898         if (ret == FAILED)
 899                 goto eh_bus_reset_done;
 900
 901         /* Waiting for our command in done_queue to be returned to OS.*/
 902         if (cmd->device->host->eh_active)
 903                 if (!qla2x00_eh_wait_for_pending_commands(ha))
 904                         ret = FAILED;
 905
 906 eh_bus_reset_done:
 907         qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
 908             (ret == FAILED) ? "failed" : "succeded");
 909
 910         return ret;
 911 }
 912
 913 /**************************************************************************
 914 * qla2xxx_eh_host_reset
 915 *
 916 * Description:
 917 *    The reset function will reset the Adapter.
 918 *
 919 * Input:
 920 *      cmd = Linux SCSI command packet of the command that cause the
 921 *            adapter reset.
 922 *
 923 * Returns:
 924 *      Either SUCCESS or FAILED.
 925 *
 926 * Note:
 927 **************************************************************************/
 928 int
 929 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
 930 {
 931         scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
 932         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 933         srb_t *sp;
 934         int ret;
 935         unsigned int id, lun;
 936         unsigned long serial;
 937
 938         ret = FAILED;
 939
 940         id = cmd->device->id;
 941         lun = cmd->device->lun;
 942         serial = cmd->serial_number;
 943
 944         sp = (srb_t *) CMD_SP(cmd);
 945         if (!sp || !fcport)
 946                 return ret;
 947
 948         qla_printk(KERN_INFO, ha,
 949             "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun);
 950
 951         if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
 952                 goto eh_host_reset_lock;
 953
 954         /*
 955          * Fixme-may be dpc thread is active and processing
 956          * loop_resync,so wait a while for it to
 957          * be completed and then issue big hammer.Otherwise
 958          * it may cause I/O failure as big hammer marks the
 959          * devices as lost kicking of the port_down_timer
 960          * while dpc is stuck for the mailbox to complete.
 961          */
 962         qla2x00_wait_for_loop_ready(ha);
 963         set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
 964         if (qla2x00_abort_isp(ha)) {
 965                 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
 966                 /* failed. schedule dpc to try */
 967                 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
 968
 969                 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
 970                         goto eh_host_reset_lock;
 971         }
 972         clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
 973
 974         /* Waiting for our command in done_queue to be returned to OS.*/
 975         if (qla2x00_eh_wait_for_pending_commands(ha))
 976                 ret = SUCCESS;
 977
 978 eh_host_reset_lock:
 979         qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
 980             (ret == FAILED) ? "failed" : "succeded");
 981
 982         return ret;
 983 }
 984
 985 /*
 986 * qla2x00_loop_reset
 987 *      Issue loop reset.
 988 *
 989 * Input:
 990 *      ha = adapter block pointer.
 991 *
 992 * Returns:
 993 *      0 = success
 994 */
 995 static int
 996 qla2x00_loop_reset(scsi_qla_host_t *ha)
 997 {
 998         int status = QLA_SUCCESS;
 999         struct fc_port *fcport;
1000
1001         if (ha->flags.enable_lip_reset) {
1002                 status = qla2x00_lip_reset(ha);
1003         }
1004
1005         if (status == QLA_SUCCESS && ha->flags.enable_target_reset) {
1006                 list_for_each_entry(fcport, &ha->fcports, list) {
1007                         if (fcport->port_type != FCT_TARGET)
1008                                 continue;
1009
1010                         status = qla2x00_device_reset(ha, fcport);
1011                         if (status != QLA_SUCCESS)
1012                                 break;
1013                 }
1014         }
1015
1016         if (status == QLA_SUCCESS &&
1017                 ((!ha->flags.enable_target_reset &&
1018                   !ha->flags.enable_lip_reset) ||
1019                 ha->flags.enable_lip_full_login)) {
1020
1021                 status = qla2x00_full_login_lip(ha);
1022         }
1023
1024         /* Issue marker command only when we are going to start the I/O */
1025         ha->marker_needed = 1;
1026
1027         if (status) {
1028                 /* Empty */
1029                 DEBUG2_3(printk("%s(%ld): **** FAILED ****\n",
1030                                 __func__,
1031                                 ha->host_no);)
1032         } else {
1033                 /* Empty */
1034                 DEBUG3(printk("%s(%ld): exiting normally.\n",
1035                                 __func__,
1036                                 ha->host_no);)
1037         }
1038
1039         return(status);
1040 }
1041
1042 /*
1043  * qla2x00_device_reset
1044  *      Issue bus device reset message to the target.
1045  *
1046  * Input:
1047  *      ha = adapter block pointer.
1048  *      t = SCSI ID.
1049  *      TARGET_QUEUE_LOCK must be released.
1050  *      ADAPTER_STATE_LOCK must be released.
1051  *
1052  * Context:
1053  *      Kernel context.
1054  */
1055 static int
1056 qla2x00_device_reset(scsi_qla_host_t *ha, fc_port_t *reset_fcport)
1057 {
1058         /* Abort Target command will clear Reservation */
1059         return ha->isp_ops.abort_target(reset_fcport);
1060 }
1061
1062 static int
1063 qla2xxx_slave_alloc(struct scsi_device *sdev)
1064 {
1065         struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1066
1067         if (!rport)
1068                 return -ENXIO;
1069
1070         sdev->hostdata = rport->dd_data;
1071
1072         return 0;
1073 }
1074
1075 static int
1076 qla2xxx_slave_configure(struct scsi_device *sdev)
1077 {
1078         scsi_qla_host_t *ha = to_qla_host(sdev->host);
1079         struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1080
1081         if (sdev->tagged_supported)
1082                 scsi_activate_tcq(sdev, 32);
1083         else
1084                 scsi_deactivate_tcq(sdev, 32);
1085
1086         rport->dev_loss_tmo = ha->port_down_retry_count + 5;
1087
1088         return 0;
1089 }
1090
1091 static void
1092 qla2xxx_slave_destroy(struct scsi_device *sdev)
1093 {
1094         sdev->hostdata = NULL;
1095 }
1096
1097 static int
1098 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1099 {
1100         scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1101         return sdev->queue_depth;
1102 }
1103
1104 static int
1105 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1106 {
1107         if (sdev->tagged_supported) {
1108                 scsi_set_tag_type(sdev, tag_type);
1109                 if (tag_type)
1110                         scsi_activate_tcq(sdev, sdev->queue_depth);
1111                 else
1112                         scsi_deactivate_tcq(sdev, sdev->queue_depth);
1113         } else
1114                 tag_type = 0;
1115
1116         return tag_type;
1117 }
1118
1119 /**
1120  * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1121  * @ha: HA context
1122  *
1123  * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1124  * supported addressing method.
1125  */
1126 static void
1127 qla2x00_config_dma_addressing(scsi_qla_host_t *ha)
1128 {
1129         /* Assume a 32bit DMA mask. */
1130         ha->flags.enable_64bit_addressing = 0;
1131
1132         if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1133                 /* Any upper-dword bits set? */
1134                 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1135                     !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1136                         /* Ok, a 64bit DMA mask is applicable. */
1137                         ha->flags.enable_64bit_addressing = 1;
1138                         ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_64;
1139                         ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_64;
1140                         return;
1141                 }
1142         }
1143
1144         dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1145         pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
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         ha->dpc_pid = -1;
1306
1307         /* Configure PCI I/O space */
1308         ret = qla2x00_iospace_config(ha);
1309         if (ret)
1310                 goto probe_failed;
1311
1312         qla_printk(KERN_INFO, ha,
1313             "Found an %s, irq %d, iobase 0x%p\n", ha->brd_info->isp_name,
1314             pdev->irq, ha->iobase);
1315
1316         spin_lock_init(&ha->hardware_lock);
1317
1318         ha->prev_topology = 0;
1319         ha->ports = MAX_BUSES;
1320         ha->init_cb_size = sizeof(init_cb_t);
1321         ha->mgmt_svr_loop_id = MANAGEMENT_SERVER;
1322
1323         /* Assign ISP specific operations. */
1324         ha->isp_ops.pci_config          = qla2100_pci_config;
1325         ha->isp_ops.reset_chip          = qla2x00_reset_chip;
1326         ha->isp_ops.chip_diag           = qla2x00_chip_diag;
1327         ha->isp_ops.config_rings        = qla2x00_config_rings;
1328         ha->isp_ops.reset_adapter       = qla2x00_reset_adapter;
1329         ha->isp_ops.nvram_config        = qla2x00_nvram_config;
1330         ha->isp_ops.update_fw_options   = qla2x00_update_fw_options;
1331         ha->isp_ops.load_risc           = qla2x00_load_risc;
1332         ha->isp_ops.pci_info_str        = qla2x00_pci_info_str;
1333         ha->isp_ops.fw_version_str      = qla2x00_fw_version_str;
1334         ha->isp_ops.intr_handler        = qla2100_intr_handler;
1335         ha->isp_ops.enable_intrs        = qla2x00_enable_intrs;
1336         ha->isp_ops.disable_intrs       = qla2x00_disable_intrs;
1337         ha->isp_ops.abort_command       = qla2x00_abort_command;
1338         ha->isp_ops.abort_target        = qla2x00_abort_target;
1339         ha->isp_ops.fabric_login        = qla2x00_login_fabric;
1340         ha->isp_ops.fabric_logout       = qla2x00_fabric_logout;
1341         ha->isp_ops.calc_req_entries    = qla2x00_calc_iocbs_32;
1342         ha->isp_ops.build_iocbs         = qla2x00_build_scsi_iocbs_32;
1343         ha->isp_ops.prep_ms_iocb        = qla2x00_prep_ms_iocb;
1344         ha->isp_ops.prep_ms_fdmi_iocb   = qla2x00_prep_ms_fdmi_iocb;
1345         ha->isp_ops.read_nvram          = qla2x00_read_nvram_data;
1346         ha->isp_ops.write_nvram         = qla2x00_write_nvram_data;
1347         ha->isp_ops.fw_dump             = qla2100_fw_dump;
1348         ha->isp_ops.ascii_fw_dump       = qla2100_ascii_fw_dump;
1349         if (IS_QLA2100(ha)) {
1350                 host->max_id = MAX_TARGETS_2100;
1351                 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1352                 ha->request_q_length = REQUEST_ENTRY_CNT_2100;
1353                 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1354                 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1355                 host->sg_tablesize = 32;
1356                 ha->gid_list_info_size = 4;
1357         } else if (IS_QLA2200(ha)) {
1358                 host->max_id = MAX_TARGETS_2200;
1359                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1360                 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1361                 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1362                 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1363                 ha->gid_list_info_size = 4;
1364         } else if (IS_QLA23XX(ha)) {
1365                 host->max_id = MAX_TARGETS_2200;
1366                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1367                 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1368                 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1369                 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1370                 ha->isp_ops.pci_config = qla2300_pci_config;
1371                 ha->isp_ops.intr_handler = qla2300_intr_handler;
1372                 ha->isp_ops.fw_dump = qla2300_fw_dump;
1373                 ha->isp_ops.ascii_fw_dump = qla2300_ascii_fw_dump;
1374                 ha->gid_list_info_size = 6;
1375         } else if (IS_QLA24XX(ha) || IS_QLA25XX(ha)) {
1376                 host->max_id = MAX_TARGETS_2200;
1377                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1378                 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1379                 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1380                 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1381                 ha->init_cb_size = sizeof(struct init_cb_24xx);
1382                 ha->mgmt_svr_loop_id = 10;
1383                 ha->isp_ops.pci_config = qla24xx_pci_config;
1384                 ha->isp_ops.reset_chip = qla24xx_reset_chip;
1385                 ha->isp_ops.chip_diag = qla24xx_chip_diag;
1386                 ha->isp_ops.config_rings = qla24xx_config_rings;
1387                 ha->isp_ops.reset_adapter = qla24xx_reset_adapter;
1388                 ha->isp_ops.nvram_config = qla24xx_nvram_config;
1389                 ha->isp_ops.update_fw_options = qla24xx_update_fw_options;
1390                 ha->isp_ops.load_risc = qla24xx_load_risc_flash;
1391                 if (ql2xfwloadbin)
1392                         ha->isp_ops.load_risc = qla24xx_load_risc_hotplug;
1393                 ha->isp_ops.pci_info_str = qla24xx_pci_info_str;
1394                 ha->isp_ops.fw_version_str = qla24xx_fw_version_str;
1395                 ha->isp_ops.intr_handler = qla24xx_intr_handler;
1396                 ha->isp_ops.enable_intrs = qla24xx_enable_intrs;
1397                 ha->isp_ops.disable_intrs = qla24xx_disable_intrs;
1398                 ha->isp_ops.abort_command = qla24xx_abort_command;
1399                 ha->isp_ops.abort_target = qla24xx_abort_target;
1400                 ha->isp_ops.fabric_login = qla24xx_login_fabric;
1401                 ha->isp_ops.fabric_logout = qla24xx_fabric_logout;
1402                 ha->isp_ops.prep_ms_iocb = qla24xx_prep_ms_iocb;
1403                 ha->isp_ops.prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb;
1404                 ha->isp_ops.read_nvram = qla24xx_read_nvram_data;
1405                 ha->isp_ops.write_nvram = qla24xx_write_nvram_data;
1406                 ha->isp_ops.fw_dump = qla24xx_fw_dump;
1407                 ha->isp_ops.ascii_fw_dump = qla24xx_ascii_fw_dump;
1408                 ha->gid_list_info_size = 8;
1409         }
1410         host->can_queue = ha->request_q_length + 128;
1411
1412         /* load the F/W, read paramaters, and init the H/W */
1413         ha->instance = num_hosts;
1414
1415         init_MUTEX(&ha->mbx_cmd_sem);
1416         init_MUTEX_LOCKED(&ha->mbx_intr_sem);
1417
1418         INIT_LIST_HEAD(&ha->list);
1419         INIT_LIST_HEAD(&ha->fcports);
1420         INIT_LIST_HEAD(&ha->rscn_fcports);
1421
1422         /*
1423          * These locks are used to prevent more than one CPU
1424          * from modifying the queue at the same time. The
1425          * higher level "host_lock" will reduce most
1426          * contention for these locks.
1427          */
1428         spin_lock_init(&ha->mbx_reg_lock);
1429
1430         init_completion(&ha->dpc_inited);
1431         init_completion(&ha->dpc_exited);
1432
1433         qla2x00_config_dma_addressing(ha);
1434         if (qla2x00_mem_alloc(ha)) {
1435                 qla_printk(KERN_WARNING, ha,
1436                     "[ERROR] Failed to allocate memory for adapter\n");
1437
1438                 ret = -ENOMEM;
1439                 goto probe_failed;
1440         }
1441
1442         if (qla2x00_initialize_adapter(ha) &&
1443             !(ha->device_flags & DFLG_NO_CABLE)) {
1444
1445                 qla_printk(KERN_WARNING, ha,
1446                     "Failed to initialize adapter\n");
1447
1448                 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1449                     "Adapter flags %x.\n",
1450                     ha->host_no, ha->device_flags));
1451
1452                 ret = -ENODEV;
1453                 goto probe_failed;
1454         }
1455
1456         /*
1457          * Startup the kernel thread for this host adapter
1458          */
1459         ha->dpc_should_die = 0;
1460         ha->dpc_pid = kernel_thread(qla2x00_do_dpc, ha, 0);
1461         if (ha->dpc_pid < 0) {
1462                 qla_printk(KERN_WARNING, ha,
1463                     "Unable to start DPC thread!\n");
1464
1465                 ret = -ENODEV;
1466                 goto probe_failed;
1467         }
1468         wait_for_completion(&ha->dpc_inited);
1469
1470         host->this_id = 255;
1471         host->cmd_per_lun = 3;
1472         host->unique_id = ha->instance;
1473         host->max_cmd_len = MAX_CMDSZ;
1474         host->max_channel = ha->ports - 1;
1475         host->max_lun = MAX_LUNS;
1476         host->transportt = qla2xxx_transport_template;
1477
1478         ret = request_irq(pdev->irq, ha->isp_ops.intr_handler,
1479             SA_INTERRUPT|SA_SHIRQ, ha->brd_info->drv_name, ha);
1480         if (ret) {
1481                 qla_printk(KERN_WARNING, ha,
1482                     "Failed to reserve interrupt %d already in use.\n",
1483                     pdev->irq);
1484                 goto probe_failed;
1485         }
1486         host->irq = pdev->irq;
1487
1488         /* Initialized the timer */
1489         qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL);
1490
1491         DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1492             ha->host_no, ha));
1493
1494         ha->isp_ops.disable_intrs(ha);
1495
1496         spin_lock_irqsave(&ha->hardware_lock, flags);
1497         reg = ha->iobase;
1498         if (IS_QLA24XX(ha) || IS_QLA25XX(ha)) {
1499                 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_HOST_INT);
1500                 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_RISC_INT);
1501         } else {
1502                 WRT_REG_WORD(&reg->isp.semaphore, 0);
1503                 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_RISC_INT);
1504                 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_HOST_INT);
1505
1506                 /* Enable proper parity */
1507                 if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) {
1508                         if (IS_QLA2300(ha))
1509                                 /* SRAM parity */
1510                                 WRT_REG_WORD(&reg->isp.hccr,
1511                                     (HCCR_ENABLE_PARITY + 0x1));
1512                         else
1513                                 /* SRAM, Instruction RAM and GP RAM parity */
1514                                 WRT_REG_WORD(&reg->isp.hccr,
1515                                     (HCCR_ENABLE_PARITY + 0x7));
1516                 }
1517         }
1518         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1519
1520         ha->isp_ops.enable_intrs(ha);
1521
1522         /* v2.19.5b6 */
1523         /*
1524          * Wait around max loop_reset_delay secs for the devices to come
1525          * on-line. We don't want Linux scanning before we are ready.
1526          *
1527          */
1528         for (wait_switch = jiffies + (ha->loop_reset_delay * HZ);
1529             time_before(jiffies,wait_switch) &&
1530              !(ha->device_flags & (DFLG_NO_CABLE | DFLG_FABRIC_DEVICES))
1531              && (ha->device_flags & SWITCH_FOUND) ;) {
1532
1533                 qla2x00_check_fabric_devices(ha);
1534
1535                 msleep(10);
1536         }
1537
1538         pci_set_drvdata(pdev, ha);
1539         ha->flags.init_done = 1;
1540         num_hosts++;
1541
1542         ret = scsi_add_host(host, &pdev->dev);
1543         if (ret)
1544                 goto probe_failed;
1545
1546         qla2x00_alloc_sysfs_attr(ha);
1547
1548         qla2x00_init_host_attr(ha);
1549
1550         qla_printk(KERN_INFO, ha, "\n"
1551             " QLogic Fibre Channel HBA Driver: %s\n"
1552             "  QLogic %s - %s\n"
1553             "  %s: %s @ %s hdma%c, host#=%ld, fw=%s\n", qla2x00_version_str,
1554             ha->model_number, ha->model_desc ? ha->model_desc: "",
1555             ha->brd_info->isp_name, ha->isp_ops.pci_info_str(ha, pci_info),
1556             pci_name(pdev), ha->flags.enable_64bit_addressing ? '+': '-',
1557             ha->host_no, ha->isp_ops.fw_version_str(ha, fw_str));
1558
1559         /* Go with fc_rport registration. */
1560         list_for_each_entry(fcport, &ha->fcports, list)
1561                 qla2x00_reg_remote_port(ha, fcport);
1562
1563         return 0;
1564
1565 probe_failed:
1566         qla2x00_free_device(ha);
1567
1568         scsi_host_put(host);
1569
1570 probe_disable_device:
1571         pci_disable_device(pdev);
1572
1573 probe_out:
1574         return ret;
1575 }
1576 EXPORT_SYMBOL_GPL(qla2x00_probe_one);
1577
1578 void qla2x00_remove_one(struct pci_dev *pdev)
1579 {
1580         scsi_qla_host_t *ha;
1581
1582         ha = pci_get_drvdata(pdev);
1583
1584         qla2x00_free_sysfs_attr(ha);
1585
1586         fc_remove_host(ha->host);
1587
1588         scsi_remove_host(ha->host);
1589
1590         qla2x00_free_device(ha);
1591
1592         scsi_host_put(ha->host);
1593
1594         pci_set_drvdata(pdev, NULL);
1595 }
1596 EXPORT_SYMBOL_GPL(qla2x00_remove_one);
1597
1598 static void
1599 qla2x00_free_device(scsi_qla_host_t *ha)
1600 {
1601         int ret;
1602
1603         /* Abort any outstanding IO descriptors. */
1604         if (!IS_QLA2100(ha) && !IS_QLA2200(ha))
1605                 qla2x00_cancel_io_descriptors(ha);
1606
1607         /* Disable timer */
1608         if (ha->timer_active)
1609                 qla2x00_stop_timer(ha);
1610
1611         /* Kill the kernel thread for this host */
1612         if (ha->dpc_pid >= 0) {
1613                 ha->dpc_should_die = 1;
1614                 wmb();
1615                 ret = kill_proc(ha->dpc_pid, SIGHUP, 1);
1616                 if (ret) {
1617                         qla_printk(KERN_ERR, ha,
1618                             "Unable to signal DPC thread -- (%d)\n", ret);
1619
1620                         /* TODO: SOMETHING MORE??? */
1621                 } else {
1622                         wait_for_completion(&ha->dpc_exited);
1623                 }
1624         }
1625
1626         /* Stop currently executing firmware. */
1627         qla2x00_stop_firmware(ha);
1628
1629         /* turn-off interrupts on the card */
1630         if (ha->interrupts_on)
1631                 ha->isp_ops.disable_intrs(ha);
1632
1633         qla2x00_mem_free(ha);
1634
1635         ha->flags.online = 0;
1636
1637         /* Detach interrupts */
1638         if (ha->pdev->irq)
1639                 free_irq(ha->pdev->irq, ha);
1640
1641         /* release io space registers  */
1642         if (ha->iobase)
1643                 iounmap(ha->iobase);
1644         pci_release_regions(ha->pdev);
1645
1646         pci_disable_device(ha->pdev);
1647 }
1648
1649 /*
1650  * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1651  *
1652  * Input: ha = adapter block pointer.  fcport = port structure pointer.
1653  *
1654  * Return: None.
1655  *
1656  * Context:
1657  */
1658 void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport,
1659     int do_login)
1660 {
1661         if (atomic_read(&fcport->state) == FCS_ONLINE && fcport->rport)
1662                 fc_remote_port_block(fcport->rport);
1663         /*
1664          * We may need to retry the login, so don't change the state of the
1665          * port but do the retries.
1666          */
1667         if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
1668                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1669
1670         if (!do_login)
1671                 return;
1672
1673         if (fcport->login_retry == 0) {
1674                 fcport->login_retry = ha->login_retry_count;
1675                 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
1676
1677                 DEBUG(printk("scsi(%ld): Port login retry: "
1678                     "%02x%02x%02x%02x%02x%02x%02x%02x, "
1679                     "id = 0x%04x retry cnt=%d\n",
1680                     ha->host_no,
1681                     fcport->port_name[0],
1682                     fcport->port_name[1],
1683                     fcport->port_name[2],
1684                     fcport->port_name[3],
1685                     fcport->port_name[4],
1686                     fcport->port_name[5],
1687                     fcport->port_name[6],
1688                     fcport->port_name[7],
1689                     fcport->loop_id,
1690                     fcport->login_retry));
1691         }
1692 }
1693
1694 /*
1695  * qla2x00_mark_all_devices_lost
1696  *      Updates fcport state when device goes offline.
1697  *
1698  * Input:
1699  *      ha = adapter block pointer.
1700  *      fcport = port structure pointer.
1701  *
1702  * Return:
1703  *      None.
1704  *
1705  * Context:
1706  */
1707 void
1708 qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha)
1709 {
1710         fc_port_t *fcport;
1711
1712         list_for_each_entry(fcport, &ha->fcports, list) {
1713                 if (fcport->port_type != FCT_TARGET)
1714                         continue;
1715
1716                 /*
1717                  * No point in marking the device as lost, if the device is
1718                  * already DEAD.
1719                  */
1720                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
1721                         continue;
1722                 if (atomic_read(&fcport->state) == FCS_ONLINE && fcport->rport)
1723                         fc_remote_port_block(fcport->rport);
1724                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1725         }
1726 }
1727
1728 /*
1729 * qla2x00_mem_alloc
1730 *      Allocates adapter memory.
1731 *
1732 * Returns:
1733 *      0  = success.
1734 *      1  = failure.
1735 */
1736 static uint8_t
1737 qla2x00_mem_alloc(scsi_qla_host_t *ha)
1738 {
1739         char    name[16];
1740         uint8_t   status = 1;
1741         int     retry= 10;
1742
1743         do {
1744                 /*
1745                  * This will loop only once if everything goes well, else some
1746                  * number of retries will be performed to get around a kernel
1747                  * bug where available mem is not allocated until after a
1748                  * little delay and a retry.
1749                  */
1750                 ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
1751                     (ha->request_q_length + 1) * sizeof(request_t),
1752                     &ha->request_dma, GFP_KERNEL);
1753                 if (ha->request_ring == NULL) {
1754                         qla_printk(KERN_WARNING, ha,
1755                             "Memory Allocation failed - request_ring\n");
1756
1757                         qla2x00_mem_free(ha);
1758                         msleep(100);
1759
1760                         continue;
1761                 }
1762
1763                 ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
1764                     (ha->response_q_length + 1) * sizeof(response_t),
1765                     &ha->response_dma, GFP_KERNEL);
1766                 if (ha->response_ring == NULL) {
1767                         qla_printk(KERN_WARNING, ha,
1768                             "Memory Allocation failed - response_ring\n");
1769
1770                         qla2x00_mem_free(ha);
1771                         msleep(100);
1772
1773                         continue;
1774                 }
1775
1776                 ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
1777                     &ha->gid_list_dma, GFP_KERNEL);
1778                 if (ha->gid_list == NULL) {
1779                         qla_printk(KERN_WARNING, ha,
1780                             "Memory Allocation failed - gid_list\n");
1781
1782                         qla2x00_mem_free(ha);
1783                         msleep(100);
1784
1785                         continue;
1786                 }
1787
1788                 ha->rlc_rsp = dma_alloc_coherent(&ha->pdev->dev,
1789                     sizeof(rpt_lun_cmd_rsp_t), &ha->rlc_rsp_dma, GFP_KERNEL);
1790                 if (ha->rlc_rsp == NULL) {
1791                         qla_printk(KERN_WARNING, ha,
1792                                 "Memory Allocation failed - rlc");
1793
1794                         qla2x00_mem_free(ha);
1795                         msleep(100);
1796
1797                         continue;
1798                 }
1799
1800                 snprintf(name, sizeof(name), "qla2xxx_%ld", ha->host_no);
1801                 ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
1802                     DMA_POOL_SIZE, 8, 0);
1803                 if (ha->s_dma_pool == NULL) {
1804                         qla_printk(KERN_WARNING, ha,
1805                             "Memory Allocation failed - s_dma_pool\n");
1806
1807                         qla2x00_mem_free(ha);
1808                         msleep(100);
1809
1810                         continue;
1811                 }
1812
1813                 /* get consistent memory allocated for init control block */
1814                 ha->init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1815                     &ha->init_cb_dma);
1816                 if (ha->init_cb == NULL) {
1817                         qla_printk(KERN_WARNING, ha,
1818                             "Memory Allocation failed - init_cb\n");
1819
1820                         qla2x00_mem_free(ha);
1821                         msleep(100);
1822
1823                         continue;
1824                 }
1825                 memset(ha->init_cb, 0, ha->init_cb_size);
1826
1827                 /* Get consistent memory allocated for Get Port Database cmd */
1828                 ha->iodesc_pd = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1829                     &ha->iodesc_pd_dma);
1830                 if (ha->iodesc_pd == NULL) {
1831                         /* error */
1832                         qla_printk(KERN_WARNING, ha,
1833                             "Memory Allocation failed - iodesc_pd\n");
1834
1835                         qla2x00_mem_free(ha);
1836                         msleep(100);
1837
1838                         continue;
1839                 }
1840                 memset(ha->iodesc_pd, 0, PORT_DATABASE_SIZE);
1841
1842                 /* Allocate ioctl related memory. */
1843                 if (qla2x00_alloc_ioctl_mem(ha)) {
1844                         qla_printk(KERN_WARNING, ha,
1845                             "Memory Allocation failed - ioctl_mem\n");
1846
1847                         qla2x00_mem_free(ha);
1848                         msleep(100);
1849
1850                         continue;
1851                 }
1852
1853                 if (qla2x00_allocate_sp_pool(ha)) {
1854                         qla_printk(KERN_WARNING, ha,
1855                             "Memory Allocation failed - "
1856                             "qla2x00_allocate_sp_pool()\n");
1857
1858                         qla2x00_mem_free(ha);
1859                         msleep(100);
1860
1861                         continue;
1862                 }
1863
1864                 /* Allocate memory for SNS commands */
1865                 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
1866                         /* Get consistent memory allocated for SNS commands */
1867                         ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
1868                             sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma,
1869                             GFP_KERNEL);
1870                         if (ha->sns_cmd == NULL) {
1871                                 /* error */
1872                                 qla_printk(KERN_WARNING, ha,
1873                                     "Memory Allocation failed - sns_cmd\n");
1874
1875                                 qla2x00_mem_free(ha);
1876                                 msleep(100);
1877
1878                                 continue;
1879                         }
1880                         memset(ha->sns_cmd, 0, sizeof(struct sns_cmd_pkt));
1881                 } else {
1882                         /* Get consistent memory allocated for MS IOCB */
1883                         ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1884                             &ha->ms_iocb_dma);
1885                         if (ha->ms_iocb == NULL) {
1886                                 /* error */
1887                                 qla_printk(KERN_WARNING, ha,
1888                                     "Memory Allocation failed - ms_iocb\n");
1889
1890                                 qla2x00_mem_free(ha);
1891                                 msleep(100);
1892
1893                                 continue;
1894                         }
1895                         memset(ha->ms_iocb, 0, sizeof(ms_iocb_entry_t));
1896
1897                         /*
1898                          * Get consistent memory allocated for CT SNS
1899                          * commands
1900                          */
1901                         ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
1902                             sizeof(struct ct_sns_pkt), &ha->ct_sns_dma,
1903                             GFP_KERNEL);
1904                         if (ha->ct_sns == NULL) {
1905                                 /* error */
1906                                 qla_printk(KERN_WARNING, ha,
1907                                     "Memory Allocation failed - ct_sns\n");
1908
1909                                 qla2x00_mem_free(ha);
1910                                 msleep(100);
1911
1912                                 continue;
1913                         }
1914                         memset(ha->ct_sns, 0, sizeof(struct ct_sns_pkt));
1915                 }
1916
1917                 /* Done all allocations without any error. */
1918                 status = 0;
1919
1920         } while (retry-- && status != 0);
1921
1922         if (status) {
1923                 printk(KERN_WARNING
1924                         "%s(): **** FAILED ****\n", __func__);
1925         }
1926
1927         return(status);
1928 }
1929
1930 /*
1931 * qla2x00_mem_free
1932 *      Frees all adapter allocated memory.
1933 *
1934 * Input:
1935 *      ha = adapter block pointer.
1936 */
1937 static void
1938 qla2x00_mem_free(scsi_qla_host_t *ha)
1939 {
1940         struct list_head        *fcpl, *fcptemp;
1941         fc_port_t       *fcport;
1942         unsigned int    wtime;/* max wait time if mbx cmd is busy. */
1943
1944         if (ha == NULL) {
1945                 /* error */
1946                 DEBUG2(printk("%s(): ERROR invalid ha pointer.\n", __func__));
1947                 return;
1948         }
1949
1950         /* Make sure all other threads are stopped. */
1951         wtime = 60 * 1000;
1952         while (ha->dpc_wait && wtime)
1953                 wtime = msleep_interruptible(wtime);
1954
1955         /* free ioctl memory */
1956         qla2x00_free_ioctl_mem(ha);
1957
1958         /* free sp pool */
1959         qla2x00_free_sp_pool(ha);
1960
1961         if (ha->sns_cmd)
1962                 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
1963                     ha->sns_cmd, ha->sns_cmd_dma);
1964
1965         if (ha->ct_sns)
1966                 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
1967                     ha->ct_sns, ha->ct_sns_dma);
1968
1969         if (ha->ms_iocb)
1970                 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
1971
1972         if (ha->iodesc_pd)
1973                 dma_pool_free(ha->s_dma_pool, ha->iodesc_pd, ha->iodesc_pd_dma);
1974
1975         if (ha->init_cb)
1976                 dma_pool_free(ha->s_dma_pool, ha->init_cb, ha->init_cb_dma);
1977
1978         if (ha->s_dma_pool)
1979                 dma_pool_destroy(ha->s_dma_pool);
1980
1981         if (ha->rlc_rsp)
1982                 dma_free_coherent(&ha->pdev->dev,
1983                     sizeof(rpt_lun_cmd_rsp_t), ha->rlc_rsp,
1984                     ha->rlc_rsp_dma);
1985
1986         if (ha->gid_list)
1987                 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
1988                     ha->gid_list_dma);
1989
1990         if (ha->response_ring)
1991                 dma_free_coherent(&ha->pdev->dev,
1992                     (ha->response_q_length + 1) * sizeof(response_t),
1993                     ha->response_ring, ha->response_dma);
1994
1995         if (ha->request_ring)
1996                 dma_free_coherent(&ha->pdev->dev,
1997                     (ha->request_q_length + 1) * sizeof(request_t),
1998                     ha->request_ring, ha->request_dma);
1999
2000         ha->sns_cmd = NULL;
2001         ha->sns_cmd_dma = 0;
2002         ha->ct_sns = NULL;
2003         ha->ct_sns_dma = 0;
2004         ha->ms_iocb = NULL;
2005         ha->ms_iocb_dma = 0;
2006         ha->iodesc_pd = NULL;
2007         ha->iodesc_pd_dma = 0;
2008         ha->init_cb = NULL;
2009         ha->init_cb_dma = 0;
2010
2011         ha->s_dma_pool = NULL;
2012
2013         ha->rlc_rsp = NULL;
2014         ha->rlc_rsp_dma = 0;
2015         ha->gid_list = NULL;
2016         ha->gid_list_dma = 0;
2017
2018         ha->response_ring = NULL;
2019         ha->response_dma = 0;
2020         ha->request_ring = NULL;
2021         ha->request_dma = 0;
2022
2023         list_for_each_safe(fcpl, fcptemp, &ha->fcports) {
2024                 fcport = list_entry(fcpl, fc_port_t, list);
2025
2026                 /* fc ports */
2027                 list_del_init(&fcport->list);
2028                 kfree(fcport);
2029         }
2030         INIT_LIST_HEAD(&ha->fcports);
2031
2032         if (ha->fw_dump)
2033                 free_pages((unsigned long)ha->fw_dump, ha->fw_dump_order);
2034
2035         vfree(ha->fw_dump24);
2036
2037         vfree(ha->fw_dump_buffer);
2038
2039         ha->fw_dump = NULL;
2040         ha->fw_dump24 = NULL;
2041         ha->fw_dumped = 0;
2042         ha->fw_dump_reading = 0;
2043         ha->fw_dump_buffer = NULL;
2044 }
2045
2046 /*
2047  * qla2x00_allocate_sp_pool
2048  *       This routine is called during initialization to allocate
2049  *       memory for local srb_t.
2050  *
2051  * Input:
2052  *       ha   = adapter block pointer.
2053  *
2054  * Context:
2055  *      Kernel context.
2056  *
2057  * Note: Sets the ref_count for non Null sp to one.
2058  */
2059 static int
2060 qla2x00_allocate_sp_pool(scsi_qla_host_t *ha)
2061 {
2062         int      rval;
2063
2064         rval = QLA_SUCCESS;
2065         ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab,
2066             mempool_free_slab, srb_cachep);
2067         if (ha->srb_mempool == NULL) {
2068                 qla_printk(KERN_INFO, ha, "Unable to allocate SRB mempool.\n");
2069                 rval = QLA_FUNCTION_FAILED;
2070         }
2071         return (rval);
2072 }
2073
2074 /*
2075  *  This routine frees all adapter allocated memory.
2076  *
2077  */
2078 static void
2079 qla2x00_free_sp_pool( scsi_qla_host_t *ha)
2080 {
2081         if (ha->srb_mempool) {
2082                 mempool_destroy(ha->srb_mempool);
2083                 ha->srb_mempool = NULL;
2084         }
2085 }
2086
2087 /**************************************************************************
2088 * qla2x00_do_dpc
2089 *   This kernel thread is a task that is schedule by the interrupt handler
2090 *   to perform the background processing for interrupts.
2091 *
2092 * Notes:
2093 * This task always run in the context of a kernel thread.  It
2094 * is kick-off by the driver's detect code and starts up
2095 * up one per adapter. It immediately goes to sleep and waits for
2096 * some fibre event.  When either the interrupt handler or
2097 * the timer routine detects a event it will one of the task
2098 * bits then wake us up.
2099 **************************************************************************/
2100 static int
2101 qla2x00_do_dpc(void *data)
2102 {
2103         DECLARE_MUTEX_LOCKED(sem);
2104         scsi_qla_host_t *ha;
2105         fc_port_t       *fcport;
2106         uint8_t         status;
2107         uint16_t        next_loopid;
2108
2109         ha = (scsi_qla_host_t *)data;
2110
2111         lock_kernel();
2112
2113         daemonize("%s_dpc", ha->host_str);
2114         allow_signal(SIGHUP);
2115
2116         ha->dpc_wait = &sem;
2117
2118         set_user_nice(current, -20);
2119
2120         unlock_kernel();
2121
2122         complete(&ha->dpc_inited);
2123
2124         while (1) {
2125                 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2126
2127                 if (down_interruptible(&sem))
2128                         break;
2129
2130                 if (ha->dpc_should_die)
2131                         break;
2132
2133                 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2134
2135                 /* Initialization not yet finished. Don't do anything yet. */
2136                 if (!ha->flags.init_done || ha->dpc_active)
2137                         continue;
2138
2139                 DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no));
2140
2141                 ha->dpc_active = 1;
2142
2143                 if (ha->flags.mbox_busy) {
2144                         ha->dpc_active = 0;
2145                         continue;
2146                 }
2147
2148                 if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2149
2150                         DEBUG(printk("scsi(%ld): dpc: sched "
2151                             "qla2x00_abort_isp ha = %p\n",
2152                             ha->host_no, ha));
2153                         if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2154                             &ha->dpc_flags))) {
2155
2156                                 if (qla2x00_abort_isp(ha)) {
2157                                         /* failed. retry later */
2158                                         set_bit(ISP_ABORT_NEEDED,
2159                                             &ha->dpc_flags);
2160                                 }
2161                                 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2162                         }
2163                         DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2164                             ha->host_no));
2165                 }
2166
2167                 if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) &&
2168                     (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) {
2169
2170                         DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2171                             ha->host_no));
2172
2173                         qla2x00_rst_aen(ha);
2174                         clear_bit(RESET_ACTIVE, &ha->dpc_flags);
2175                 }
2176
2177                 /* Retry each device up to login retry count */
2178                 if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2179                     !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) &&
2180                     atomic_read(&ha->loop_state) != LOOP_DOWN) {
2181
2182                         DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2183                             ha->host_no));
2184
2185                         next_loopid = 0;
2186                         list_for_each_entry(fcport, &ha->fcports, list) {
2187                                 if (fcport->port_type != FCT_TARGET)
2188                                         continue;
2189
2190                                 /*
2191                                  * If the port is not ONLINE then try to login
2192                                  * to it if we haven't run out of retries.
2193                                  */
2194                                 if (atomic_read(&fcport->state) != FCS_ONLINE &&
2195                                     fcport->login_retry) {
2196
2197                                         fcport->login_retry--;
2198                                         if (fcport->flags & FCF_FABRIC_DEVICE) {
2199                                                 if (fcport->flags &
2200                                                     FCF_TAPE_PRESENT)
2201                                                         ha->isp_ops.fabric_logout(
2202                                                             ha, fcport->loop_id,
2203                                                             fcport->d_id.b.domain,
2204                                                             fcport->d_id.b.area,
2205                                                             fcport->d_id.b.al_pa);
2206                                                 status = qla2x00_fabric_login(
2207                                                     ha, fcport, &next_loopid);
2208                                         } else
2209                                                 status =
2210                                                     qla2x00_local_device_login(
2211                                                         ha, fcport->loop_id);
2212
2213                                         if (status == QLA_SUCCESS) {
2214                                                 fcport->old_loop_id = fcport->loop_id;
2215
2216                                                 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2217                                                     ha->host_no, fcport->loop_id));
2218
2219                                                 fcport->port_login_retry_count =
2220                                                     ha->port_down_retry_count * PORT_RETRY_TIME;
2221                                                 atomic_set(&fcport->state, FCS_ONLINE);
2222                                                 atomic_set(&fcport->port_down_timer,
2223                                                     ha->port_down_retry_count * PORT_RETRY_TIME);
2224
2225                                                 fcport->login_retry = 0;
2226                                         } else if (status == 1) {
2227                                                 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
2228                                                 /* retry the login again */
2229                                                 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2230                                                     ha->host_no,
2231                                                     fcport->login_retry, fcport->loop_id));
2232                                         } else {
2233                                                 fcport->login_retry = 0;
2234                                         }
2235                                 }
2236                                 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2237                                         break;
2238                         }
2239                         DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2240                             ha->host_no));
2241                 }
2242
2243                 if ((test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags)) &&
2244                     atomic_read(&ha->loop_state) != LOOP_DOWN) {
2245
2246                         clear_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags);
2247                         DEBUG(printk("scsi(%ld): qla2x00_login_retry()\n",
2248                             ha->host_no));
2249
2250                         set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2251
2252                         DEBUG(printk("scsi(%ld): qla2x00_login_retry - end\n",
2253                             ha->host_no));
2254                 }
2255
2256                 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2257
2258                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2259                             ha->host_no));
2260
2261                         if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2262                             &ha->dpc_flags))) {
2263
2264                                 qla2x00_loop_resync(ha);
2265
2266                                 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
2267                         }
2268
2269                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2270                             ha->host_no));
2271                 }
2272
2273                 if (test_and_clear_bit(FCPORT_RESCAN_NEEDED, &ha->dpc_flags)) {
2274
2275                         DEBUG(printk("scsi(%ld): Rescan flagged fcports...\n",
2276                             ha->host_no));
2277
2278                         qla2x00_rescan_fcports(ha);
2279
2280                         DEBUG(printk("scsi(%ld): Rescan flagged fcports..."
2281                             "end.\n",
2282                             ha->host_no));
2283                 }
2284
2285                 if (!ha->interrupts_on)
2286                         ha->isp_ops.enable_intrs(ha);
2287
2288                 ha->dpc_active = 0;
2289         } /* End of while(1) */
2290
2291         DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no));
2292
2293         /*
2294          * Make sure that nobody tries to wake us up again.
2295          */
2296         ha->dpc_wait = NULL;
2297         ha->dpc_active = 0;
2298
2299         complete_and_exit(&ha->dpc_exited, 0);
2300 }
2301
2302 /*
2303 *  qla2x00_rst_aen
2304 *      Processes asynchronous reset.
2305 *
2306 * Input:
2307 *      ha  = adapter block pointer.
2308 */
2309 static void
2310 qla2x00_rst_aen(scsi_qla_host_t *ha)
2311 {
2312         if (ha->flags.online && !ha->flags.reset_active &&
2313             !atomic_read(&ha->loop_down_timer) &&
2314             !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
2315                 do {
2316                         clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2317
2318                         /*
2319                          * Issue marker command only when we are going to start
2320                          * the I/O.
2321                          */
2322                         ha->marker_needed = 1;
2323                 } while (!atomic_read(&ha->loop_down_timer) &&
2324                     (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags)));
2325         }
2326 }
2327
2328 static void
2329 qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp)
2330 {
2331         struct scsi_cmnd *cmd = sp->cmd;
2332
2333         if (sp->flags & SRB_DMA_VALID) {
2334                 if (cmd->use_sg) {
2335                         dma_unmap_sg(&ha->pdev->dev, cmd->request_buffer,
2336                             cmd->use_sg, cmd->sc_data_direction);
2337                 } else if (cmd->request_bufflen) {
2338                         dma_unmap_single(&ha->pdev->dev, sp->dma_handle,
2339                             cmd->request_bufflen, cmd->sc_data_direction);
2340                 }
2341                 sp->flags &= ~SRB_DMA_VALID;
2342         }
2343         CMD_SP(cmd) = NULL;
2344 }
2345
2346 void
2347 qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp)
2348 {
2349         struct scsi_cmnd *cmd = sp->cmd;
2350
2351         qla2x00_sp_free_dma(ha, sp);
2352
2353         mempool_free(sp, ha->srb_mempool);
2354
2355         cmd->scsi_done(cmd);
2356 }
2357
2358 /**************************************************************************
2359 *   qla2x00_timer
2360 *
2361 * Description:
2362 *   One second timer
2363 *
2364 * Context: Interrupt
2365 ***************************************************************************/
2366 static void
2367 qla2x00_timer(scsi_qla_host_t *ha)
2368 {
2369         unsigned long   cpu_flags = 0;
2370         fc_port_t       *fcport;
2371         int             start_dpc = 0;
2372         int             index;
2373         srb_t           *sp;
2374         int             t;
2375
2376         /*
2377          * Ports - Port down timer.
2378          *
2379          * Whenever, a port is in the LOST state we start decrementing its port
2380          * down timer every second until it reaches zero. Once  it reaches zero
2381          * the port it marked DEAD.
2382          */
2383         t = 0;
2384         list_for_each_entry(fcport, &ha->fcports, list) {
2385                 if (fcport->port_type != FCT_TARGET)
2386                         continue;
2387
2388                 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2389
2390                         if (atomic_read(&fcport->port_down_timer) == 0)
2391                                 continue;
2392
2393                         if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
2394                                 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
2395
2396                         DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
2397                             "%d remaining\n",
2398                             ha->host_no,
2399                             t, atomic_read(&fcport->port_down_timer)));
2400                 }
2401                 t++;
2402         } /* End of for fcport  */
2403
2404
2405         /* Loop down handler. */
2406         if (atomic_read(&ha->loop_down_timer) > 0 &&
2407             !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) {
2408
2409                 if (atomic_read(&ha->loop_down_timer) ==
2410                     ha->loop_down_abort_time) {
2411
2412                         DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2413                             "queues before time expire\n",
2414                             ha->host_no));
2415
2416                         if (!IS_QLA2100(ha) && ha->link_down_timeout)
2417                                 atomic_set(&ha->loop_state, LOOP_DEAD);
2418
2419                         /* Schedule an ISP abort to return any tape commands. */
2420                         spin_lock_irqsave(&ha->hardware_lock, cpu_flags);
2421                         for (index = 1; index < MAX_OUTSTANDING_COMMANDS;
2422                             index++) {
2423                                 fc_port_t *sfcp;
2424
2425                                 sp = ha->outstanding_cmds[index];
2426                                 if (!sp)
2427                                         continue;
2428                                 sfcp = sp->fcport;
2429                                 if (!(sfcp->flags & FCF_TAPE_PRESENT))
2430                                         continue;
2431
2432                                 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2433                                 break;
2434                         }
2435                         spin_unlock_irqrestore(&ha->hardware_lock, cpu_flags);
2436
2437                         set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags);
2438                         start_dpc++;
2439                 }
2440
2441                 /* if the loop has been down for 4 minutes, reinit adapter */
2442                 if (atomic_dec_and_test(&ha->loop_down_timer) != 0) {
2443                         DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2444                             "restarting queues.\n",
2445                             ha->host_no));
2446
2447                         set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags);
2448                         start_dpc++;
2449
2450                         if (!(ha->device_flags & DFLG_NO_CABLE)) {
2451                                 DEBUG(printk("scsi(%ld): Loop down - "
2452                                     "aborting ISP.\n",
2453                                     ha->host_no));
2454                                 qla_printk(KERN_WARNING, ha,
2455                                     "Loop down - aborting ISP.\n");
2456
2457                                 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2458                         }
2459                 }
2460                 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
2461                     ha->host_no,
2462                     atomic_read(&ha->loop_down_timer)));
2463         }
2464
2465         /* Schedule the DPC routine if needed */
2466         if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) ||
2467             test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) ||
2468             start_dpc ||
2469             test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags) ||
2470             test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) ||
2471             test_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2472             ha->dpc_wait && !ha->dpc_active) {
2473
2474                 up(ha->dpc_wait);
2475         }
2476
2477         qla2x00_restart_timer(ha, WATCH_INTERVAL);
2478 }
2479
2480 /* XXX(hch): crude hack to emulate a down_timeout() */
2481 int
2482 qla2x00_down_timeout(struct semaphore *sema, unsigned long timeout)
2483 {
2484         const unsigned int step = 100; /* msecs */
2485         unsigned int iterations = jiffies_to_msecs(timeout)/100;
2486
2487         do {
2488                 if (!down_trylock(sema))
2489                         return 0;
2490                 if (msleep_interruptible(step))
2491                         break;
2492         } while (--iterations >= 0);
2493
2494         return -ETIMEDOUT;
2495 }
2496
2497 static struct qla_board_info qla_board_tbl[] = {
2498         {
2499                 .drv_name       = "qla2400",
2500                 .isp_name       = "ISP2422",
2501                 .fw_fname       = "ql2400_fw.bin",
2502                 .sht            = &qla24xx_driver_template,
2503         },
2504         {
2505                 .drv_name       = "qla2400",
2506                 .isp_name       = "ISP2432",
2507                 .fw_fname       = "ql2400_fw.bin",
2508                 .sht            = &qla24xx_driver_template,
2509         },
2510 };
2511
2512 static struct pci_device_id qla2xxx_pci_tbl[] = {
2513         {
2514                 .vendor         = PCI_VENDOR_ID_QLOGIC,
2515                 .device         = PCI_DEVICE_ID_QLOGIC_ISP2422,
2516                 .subvendor      = PCI_ANY_ID,
2517                 .subdevice      = PCI_ANY_ID,
2518                 .driver_data    = (unsigned long)&qla_board_tbl[0],
2519         },
2520         {
2521                 .vendor         = PCI_VENDOR_ID_QLOGIC,
2522                 .device         = PCI_DEVICE_ID_QLOGIC_ISP2432,
2523                 .subvendor      = PCI_ANY_ID,
2524                 .subdevice      = PCI_ANY_ID,
2525                 .driver_data    = (unsigned long)&qla_board_tbl[1],
2526         },
2527         {0, 0},
2528 };
2529 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
2530
2531 static int __devinit
2532 qla2xxx_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
2533 {
2534         return qla2x00_probe_one(pdev,
2535             (struct qla_board_info *)id->driver_data);
2536 }
2537
2538 static void __devexit
2539 qla2xxx_remove_one(struct pci_dev *pdev)
2540 {
2541         qla2x00_remove_one(pdev);
2542 }
2543
2544 static struct pci_driver qla2xxx_pci_driver = {
2545         .name           = "qla2xxx",
2546         .id_table       = qla2xxx_pci_tbl,
2547         .probe          = qla2xxx_probe_one,
2548         .remove         = __devexit_p(qla2xxx_remove_one),
2549 };
2550
2551 /**
2552  * qla2x00_module_init - Module initialization.
2553  **/
2554 static int __init
2555 qla2x00_module_init(void)
2556 {
2557         int ret = 0;
2558
2559         /* Allocate cache for SRBs. */
2560         srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
2561             SLAB_HWCACHE_ALIGN, NULL, NULL);
2562         if (srb_cachep == NULL) {
2563                 printk(KERN_ERR
2564                     "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2565                 return -ENOMEM;
2566         }
2567
2568         /* Derive version string. */
2569         strcpy(qla2x00_version_str, QLA2XXX_VERSION);
2570 #if DEBUG_QLA2100
2571         strcat(qla2x00_version_str, "-debug");
2572 #endif
2573         qla2xxx_transport_template =
2574             fc_attach_transport(&qla2xxx_transport_functions);
2575         if (!qla2xxx_transport_template)
2576                 return -ENODEV;
2577
2578         printk(KERN_INFO "QLogic Fibre Channel HBA Driver\n");
2579         ret = pci_module_init(&qla2xxx_pci_driver);
2580         if (ret) {
2581                 kmem_cache_destroy(srb_cachep);
2582                 fc_release_transport(qla2xxx_transport_template);
2583         }
2584         return ret;
2585 }
2586
2587 /**
2588  * qla2x00_module_exit - Module cleanup.
2589  **/
2590 static void __exit
2591 qla2x00_module_exit(void)
2592 {
2593         pci_unregister_driver(&qla2xxx_pci_driver);
2594         kmem_cache_destroy(srb_cachep);
2595         fc_release_transport(qla2xxx_transport_template);
2596 }
2597
2598 module_init(qla2x00_module_init);
2599 module_exit(qla2x00_module_exit);
2600
2601 MODULE_AUTHOR("QLogic Corporation");
2602 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
2603 MODULE_LICENSE("GPL");
2604 MODULE_VERSION(QLA2XXX_VERSION);