drivers/scsi/qla2xxx/qla_os.c

   1 /*
   2  * QLogic Fibre Channel HBA Driver
   3  * Copyright (c)  2003-2008 QLogic Corporation
   4  *
   5  * See LICENSE.qla2xxx for copyright and licensing details.
   6  */
   7 #include "qla_def.h"
   8
   9 #include <linux/moduleparam.h>
  10 #include <linux/vmalloc.h>
  11 #include <linux/delay.h>
  12 #include <linux/kthread.h>
  13 #include <linux/mutex.h>
  14 #include <linux/kobject.h>
  15
  16 #include <scsi/scsi_tcq.h>
  17 #include <scsi/scsicam.h>
  18 #include <scsi/scsi_transport.h>
  19 #include <scsi/scsi_transport_fc.h>
  20
  21 /*
  22  * Driver version
  23  */
  24 char qla2x00_version_str[40];
  25
  26 /*
  27  * SRB allocation cache
  28  */
  29 static struct kmem_cache *srb_cachep;
  30
  31 int ql2xlogintimeout = 20;
  32 module_param(ql2xlogintimeout, int, S_IRUGO|S_IRUSR);
  33 MODULE_PARM_DESC(ql2xlogintimeout,
  34                 "Login timeout value in seconds.");
  35
  36 int qlport_down_retry;
  37 module_param(qlport_down_retry, int, S_IRUGO|S_IRUSR);
  38 MODULE_PARM_DESC(qlport_down_retry,
  39                 "Maximum number of command retries to a port that returns "
  40                 "a PORT-DOWN status.");
  41
  42 int ql2xplogiabsentdevice;
  43 module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
  44 MODULE_PARM_DESC(ql2xplogiabsentdevice,
  45                 "Option to enable PLOGI to devices that are not present after "
  46                 "a Fabric scan.  This is needed for several broken switches. "
  47                 "Default is 0 - no PLOGI. 1 - perfom PLOGI.");
  48
  49 int ql2xloginretrycount = 0;
  50 module_param(ql2xloginretrycount, int, S_IRUGO|S_IRUSR);
  51 MODULE_PARM_DESC(ql2xloginretrycount,
  52                 "Specify an alternate value for the NVRAM login retry count.");
  53
  54 int ql2xallocfwdump = 1;
  55 module_param(ql2xallocfwdump, int, S_IRUGO|S_IRUSR);
  56 MODULE_PARM_DESC(ql2xallocfwdump,
  57                 "Option to enable allocation of memory for a firmware dump "
  58                 "during HBA initialization.  Memory allocation requirements "
  59                 "vary by ISP type.  Default is 1 - allocate memory.");
  60
  61 int ql2xextended_error_logging;
  62 module_param(ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
  63 MODULE_PARM_DESC(ql2xextended_error_logging,
  64                 "Option to enable extended error logging, "
  65                 "Default is 0 - no logging. 1 - log errors.");
  66
  67 static void qla2x00_free_device(scsi_qla_host_t *);
  68
  69 int ql2xfdmienable=1;
  70 module_param(ql2xfdmienable, int, S_IRUGO|S_IRUSR);
  71 MODULE_PARM_DESC(ql2xfdmienable,
  72                 "Enables FDMI registratons "
  73                 "Default is 0 - no FDMI. 1 - perfom FDMI.");
  74
  75 #define MAX_Q_DEPTH    32
  76 static int ql2xmaxqdepth = MAX_Q_DEPTH;
  77 module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
  78 MODULE_PARM_DESC(ql2xmaxqdepth,
  79                 "Maximum queue depth to report for target devices.");
  80
  81 int ql2xiidmaenable=1;
  82 module_param(ql2xiidmaenable, int, S_IRUGO|S_IRUSR);
  83 MODULE_PARM_DESC(ql2xiidmaenable,
  84                 "Enables iIDMA settings "
  85                 "Default is 1 - perform iIDMA. 0 - no iIDMA.");
  86
  87 int ql2xmaxqueues = 1;
  88 module_param(ql2xmaxqueues, int, S_IRUGO|S_IRUSR);
  89 MODULE_PARM_DESC(ql2xmaxqueues,
  90                 "Enables MQ settings "
  91                 "Default is 1 for single queue. Set it to number \
  92                         of queues in MQ mode.");
  93
  94 int ql2xmultique_tag;
  95 module_param(ql2xmultique_tag, int, S_IRUGO|S_IRUSR);
  96 MODULE_PARM_DESC(ql2xmultique_tag,
  97                 "Enables CPU affinity settings for the driver "
  98                 "Default is 0 for no affinity of request and response IO. "
  99                 "Set it to 1 to turn on the cpu affinity.");
 100
 101 int ql2xfwloadbin;
 102 module_param(ql2xfwloadbin, int, S_IRUGO|S_IRUSR);
 103 MODULE_PARM_DESC(ql2xfwloadbin,
 104                 "Option to specify location from which to load ISP firmware:\n"
 105                 " 2 -- load firmware via the request_firmware() (hotplug)\n"
 106                 "      interface.\n"
 107                 " 1 -- load firmware from flash.\n"
 108                 " 0 -- use default semantics.\n");
 109
 110 /*
 111  * SCSI host template entry points
 112  */
 113 static int qla2xxx_slave_configure(struct scsi_device * device);
 114 static int qla2xxx_slave_alloc(struct scsi_device *);
 115 static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
 116 static void qla2xxx_scan_start(struct Scsi_Host *);
 117 static void qla2xxx_slave_destroy(struct scsi_device *);
 118 static int qla2xxx_queuecommand(struct scsi_cmnd *cmd,
 119                 void (*fn)(struct scsi_cmnd *));
 120 static int qla2xxx_eh_abort(struct scsi_cmnd *);
 121 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
 122 static int qla2xxx_eh_target_reset(struct scsi_cmnd *);
 123 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
 124 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
 125
 126 static int qla2x00_change_queue_depth(struct scsi_device *, int, int);
 127 static int qla2x00_change_queue_type(struct scsi_device *, int);
 128
 129 struct scsi_host_template qla2xxx_driver_template = {
 130         .module                 = THIS_MODULE,
 131         .name                   = QLA2XXX_DRIVER_NAME,
 132         .queuecommand           = qla2xxx_queuecommand,
 133
 134         .eh_abort_handler       = qla2xxx_eh_abort,
 135         .eh_device_reset_handler = qla2xxx_eh_device_reset,
 136         .eh_target_reset_handler = qla2xxx_eh_target_reset,
 137         .eh_bus_reset_handler   = qla2xxx_eh_bus_reset,
 138         .eh_host_reset_handler  = qla2xxx_eh_host_reset,
 139
 140         .slave_configure        = qla2xxx_slave_configure,
 141
 142         .slave_alloc            = qla2xxx_slave_alloc,
 143         .slave_destroy          = qla2xxx_slave_destroy,
 144         .scan_finished          = qla2xxx_scan_finished,
 145         .scan_start             = qla2xxx_scan_start,
 146         .change_queue_depth     = qla2x00_change_queue_depth,
 147         .change_queue_type      = qla2x00_change_queue_type,
 148         .this_id                = -1,
 149         .cmd_per_lun            = 3,
 150         .use_clustering         = ENABLE_CLUSTERING,
 151         .sg_tablesize           = SG_ALL,
 152
 153         .max_sectors            = 0xFFFF,
 154         .shost_attrs            = qla2x00_host_attrs,
 155 };
 156
 157 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
 158 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
 159
 160 /* TODO Convert to inlines
 161  *
 162  * Timer routines
 163  */
 164
 165 __inline__ void
 166 qla2x00_start_timer(scsi_qla_host_t *vha, void *func, unsigned long interval)
 167 {
 168         init_timer(&vha->timer);
 169         vha->timer.expires = jiffies + interval * HZ;
 170         vha->timer.data = (unsigned long)vha;
 171         vha->timer.function = (void (*)(unsigned long))func;
 172         add_timer(&vha->timer);
 173         vha->timer_active = 1;
 174 }
 175
 176 static inline void
 177 qla2x00_restart_timer(scsi_qla_host_t *vha, unsigned long interval)
 178 {
 179         mod_timer(&vha->timer, jiffies + interval * HZ);
 180 }
 181
 182 static __inline__ void
 183 qla2x00_stop_timer(scsi_qla_host_t *vha)
 184 {
 185         del_timer_sync(&vha->timer);
 186         vha->timer_active = 0;
 187 }
 188
 189 static int qla2x00_do_dpc(void *data);
 190
 191 static void qla2x00_rst_aen(scsi_qla_host_t *);
 192
 193 static int qla2x00_mem_alloc(struct qla_hw_data *, uint16_t, uint16_t,
 194         struct req_que **, struct rsp_que **);
 195 static void qla2x00_mem_free(struct qla_hw_data *);
 196 static void qla2x00_sp_free_dma(srb_t *);
 197
 198 /* -------------------------------------------------------------------------- */
 199 static int qla2x00_alloc_queues(struct qla_hw_data *ha)
 200 {
 201         ha->req_q_map = kzalloc(sizeof(struct req_que *) * ha->max_req_queues,
 202                                 GFP_KERNEL);
 203         if (!ha->req_q_map) {
 204                 qla_printk(KERN_WARNING, ha,
 205                         "Unable to allocate memory for request queue ptrs\n");
 206                 goto fail_req_map;
 207         }
 208
 209         ha->rsp_q_map = kzalloc(sizeof(struct rsp_que *) * ha->max_rsp_queues,
 210                                 GFP_KERNEL);
 211         if (!ha->rsp_q_map) {
 212                 qla_printk(KERN_WARNING, ha,
 213                         "Unable to allocate memory for response queue ptrs\n");
 214                 goto fail_rsp_map;
 215         }
 216         set_bit(0, ha->rsp_qid_map);
 217         set_bit(0, ha->req_qid_map);
 218         return 1;
 219
 220 fail_rsp_map:
 221         kfree(ha->req_q_map);
 222         ha->req_q_map = NULL;
 223 fail_req_map:
 224         return -ENOMEM;
 225 }
 226
 227 static void qla2x00_free_req_que(struct qla_hw_data *ha, struct req_que *req)
 228 {
 229         if (req && req->ring)
 230                 dma_free_coherent(&ha->pdev->dev,
 231                 (req->length + 1) * sizeof(request_t),
 232                 req->ring, req->dma);
 233
 234         kfree(req);
 235         req = NULL;
 236 }
 237
 238 static void qla2x00_free_rsp_que(struct qla_hw_data *ha, struct rsp_que *rsp)
 239 {
 240         if (rsp && rsp->ring)
 241                 dma_free_coherent(&ha->pdev->dev,
 242                 (rsp->length + 1) * sizeof(response_t),
 243                 rsp->ring, rsp->dma);
 244
 245         kfree(rsp);
 246         rsp = NULL;
 247 }
 248
 249 static void qla2x00_free_queues(struct qla_hw_data *ha)
 250 {
 251         struct req_que *req;
 252         struct rsp_que *rsp;
 253         int cnt;
 254
 255         for (cnt = 0; cnt < ha->max_req_queues; cnt++) {
 256                 req = ha->req_q_map[cnt];
 257                 qla2x00_free_req_que(ha, req);
 258         }
 259         kfree(ha->req_q_map);
 260         ha->req_q_map = NULL;
 261
 262         for (cnt = 0; cnt < ha->max_rsp_queues; cnt++) {
 263                 rsp = ha->rsp_q_map[cnt];
 264                 qla2x00_free_rsp_que(ha, rsp);
 265         }
 266         kfree(ha->rsp_q_map);
 267         ha->rsp_q_map = NULL;
 268 }
 269
 270 static int qla25xx_setup_mode(struct scsi_qla_host *vha)
 271 {
 272         uint16_t options = 0;
 273         int ques, req, ret;
 274         struct qla_hw_data *ha = vha->hw;
 275
 276         if (!(ha->fw_attributes & BIT_6)) {
 277                 qla_printk(KERN_INFO, ha,
 278                         "Firmware is not multi-queue capable\n");
 279                 goto fail;
 280         }
 281         if (ql2xmultique_tag) {
 282                 /* create a request queue for IO */
 283                 options |= BIT_7;
 284                 req = qla25xx_create_req_que(ha, options, 0, 0, -1,
 285                         QLA_DEFAULT_QUE_QOS);
 286                 if (!req) {
 287                         qla_printk(KERN_WARNING, ha,
 288                                 "Can't create request queue\n");
 289                         goto fail;
 290                 }
 291                 ha->wq = create_workqueue("qla2xxx_wq");
 292                 vha->req = ha->req_q_map[req];
 293                 options |= BIT_1;
 294                 for (ques = 1; ques < ha->max_rsp_queues; ques++) {
 295                         ret = qla25xx_create_rsp_que(ha, options, 0, 0, req);
 296                         if (!ret) {
 297                                 qla_printk(KERN_WARNING, ha,
 298                                         "Response Queue create failed\n");
 299                                 goto fail2;
 300                         }
 301                 }
 302                 ha->flags.cpu_affinity_enabled = 1;
 303
 304                 DEBUG2(qla_printk(KERN_INFO, ha,
 305                         "CPU affinity mode enabled, no. of response"
 306                         " queues:%d, no. of request queues:%d\n",
 307                         ha->max_rsp_queues, ha->max_req_queues));
 308         }
 309         return 0;
 310 fail2:
 311         qla25xx_delete_queues(vha);
 312         destroy_workqueue(ha->wq);
 313         ha->wq = NULL;
 314 fail:
 315         ha->mqenable = 0;
 316         kfree(ha->req_q_map);
 317         kfree(ha->rsp_q_map);
 318         ha->max_req_queues = ha->max_rsp_queues = 1;
 319         return 1;
 320 }
 321
 322 static char *
 323 qla2x00_pci_info_str(struct scsi_qla_host *vha, char *str)
 324 {
 325         struct qla_hw_data *ha = vha->hw;
 326         static char *pci_bus_modes[] = {
 327                 "33", "66", "100", "133",
 328         };
 329         uint16_t pci_bus;
 330
 331         strcpy(str, "PCI");
 332         pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
 333         if (pci_bus) {
 334                 strcat(str, "-X (");
 335                 strcat(str, pci_bus_modes[pci_bus]);
 336         } else {
 337                 pci_bus = (ha->pci_attr & BIT_8) >> 8;
 338                 strcat(str, " (");
 339                 strcat(str, pci_bus_modes[pci_bus]);
 340         }
 341         strcat(str, " MHz)");
 342
 343         return (str);
 344 }
 345
 346 static char *
 347 qla24xx_pci_info_str(struct scsi_qla_host *vha, char *str)
 348 {
 349         static char *pci_bus_modes[] = { "33", "66", "100", "133", };
 350         struct qla_hw_data *ha = vha->hw;
 351         uint32_t pci_bus;
 352         int pcie_reg;
 353
 354         pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
 355         if (pcie_reg) {
 356                 char lwstr[6];
 357                 uint16_t pcie_lstat, lspeed, lwidth;
 358
 359                 pcie_reg += 0x12;
 360                 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
 361                 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
 362                 lwidth = (pcie_lstat &
 363                     (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
 364
 365                 strcpy(str, "PCIe (");
 366                 if (lspeed == 1)
 367                         strcat(str, "2.5GT/s ");
 368                 else if (lspeed == 2)
 369                         strcat(str, "5.0GT/s ");
 370                 else
 371                         strcat(str, "<unknown> ");
 372                 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
 373                 strcat(str, lwstr);
 374
 375                 return str;
 376         }
 377
 378         strcpy(str, "PCI");
 379         pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
 380         if (pci_bus == 0 || pci_bus == 8) {
 381                 strcat(str, " (");
 382                 strcat(str, pci_bus_modes[pci_bus >> 3]);
 383         } else {
 384                 strcat(str, "-X ");
 385                 if (pci_bus & BIT_2)
 386                         strcat(str, "Mode 2");
 387                 else
 388                         strcat(str, "Mode 1");
 389                 strcat(str, " (");
 390                 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
 391         }
 392         strcat(str, " MHz)");
 393
 394         return str;
 395 }
 396
 397 static char *
 398 qla2x00_fw_version_str(struct scsi_qla_host *vha, char *str)
 399 {
 400         char un_str[10];
 401         struct qla_hw_data *ha = vha->hw;
 402
 403         sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
 404             ha->fw_minor_version,
 405             ha->fw_subminor_version);
 406
 407         if (ha->fw_attributes & BIT_9) {
 408                 strcat(str, "FLX");
 409                 return (str);
 410         }
 411
 412         switch (ha->fw_attributes & 0xFF) {
 413         case 0x7:
 414                 strcat(str, "EF");
 415                 break;
 416         case 0x17:
 417                 strcat(str, "TP");
 418                 break;
 419         case 0x37:
 420                 strcat(str, "IP");
 421                 break;
 422         case 0x77:
 423                 strcat(str, "VI");
 424                 break;
 425         default:
 426                 sprintf(un_str, "(%x)", ha->fw_attributes);
 427                 strcat(str, un_str);
 428                 break;
 429         }
 430         if (ha->fw_attributes & 0x100)
 431                 strcat(str, "X");
 432
 433         return (str);
 434 }
 435
 436 static char *
 437 qla24xx_fw_version_str(struct scsi_qla_host *vha, char *str)
 438 {
 439         struct qla_hw_data *ha = vha->hw;
 440
 441         sprintf(str, "%d.%02d.%02d (%x)", ha->fw_major_version,
 442             ha->fw_minor_version, ha->fw_subminor_version, ha->fw_attributes);
 443         return str;
 444 }
 445
 446 static inline srb_t *
 447 qla2x00_get_new_sp(scsi_qla_host_t *vha, fc_port_t *fcport,
 448     struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 449 {
 450         srb_t *sp;
 451         struct qla_hw_data *ha = vha->hw;
 452
 453         sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
 454         if (!sp)
 455                 return sp;
 456
 457         sp->fcport = fcport;
 458         sp->cmd = cmd;
 459         sp->flags = 0;
 460         CMD_SP(cmd) = (void *)sp;
 461         cmd->scsi_done = done;
 462         sp->ctx = NULL;
 463
 464         return sp;
 465 }
 466
 467 static int
 468 qla2xxx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 469 {
 470         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 471         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 472         struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
 473         struct qla_hw_data *ha = vha->hw;
 474         struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
 475         srb_t *sp;
 476         int rval;
 477
 478         if (ha->flags.eeh_busy) {
 479                 if (ha->flags.pci_channel_io_perm_failure)
 480                         cmd->result = DID_NO_CONNECT << 16;
 481                 else
 482                         cmd->result = DID_REQUEUE << 16;
 483                 goto qc24_fail_command;
 484         }
 485
 486         rval = fc_remote_port_chkready(rport);
 487         if (rval) {
 488                 cmd->result = rval;
 489                 goto qc24_fail_command;
 490         }
 491
 492         /* Close window on fcport/rport state-transitioning. */
 493         if (fcport->drport)
 494                 goto qc24_target_busy;
 495
 496         if (atomic_read(&fcport->state) != FCS_ONLINE) {
 497                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
 498                     atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
 499                         cmd->result = DID_NO_CONNECT << 16;
 500                         goto qc24_fail_command;
 501                 }
 502                 goto qc24_target_busy;
 503         }
 504
 505         spin_unlock_irq(vha->host->host_lock);
 506
 507         sp = qla2x00_get_new_sp(base_vha, fcport, cmd, done);
 508         if (!sp)
 509                 goto qc24_host_busy_lock;
 510
 511         rval = ha->isp_ops->start_scsi(sp);
 512         if (rval != QLA_SUCCESS)
 513                 goto qc24_host_busy_free_sp;
 514
 515         spin_lock_irq(vha->host->host_lock);
 516
 517         return 0;
 518
 519 qc24_host_busy_free_sp:
 520         qla2x00_sp_free_dma(sp);
 521         mempool_free(sp, ha->srb_mempool);
 522
 523 qc24_host_busy_lock:
 524         spin_lock_irq(vha->host->host_lock);
 525         return SCSI_MLQUEUE_HOST_BUSY;
 526
 527 qc24_target_busy:
 528         return SCSI_MLQUEUE_TARGET_BUSY;
 529
 530 qc24_fail_command:
 531         done(cmd);
 532
 533         return 0;
 534 }
 535
 536
 537 /*
 538  * qla2x00_eh_wait_on_command
 539  *    Waits for the command to be returned by the Firmware for some
 540  *    max time.
 541  *
 542  * Input:
 543  *    cmd = Scsi Command to wait on.
 544  *
 545  * Return:
 546  *    Not Found : 0
 547  *    Found : 1
 548  */
 549 static int
 550 qla2x00_eh_wait_on_command(struct scsi_cmnd *cmd)
 551 {
 552 #define ABORT_POLLING_PERIOD    1000
 553 #define ABORT_WAIT_ITER         ((10 * 1000) / (ABORT_POLLING_PERIOD))
 554         unsigned long wait_iter = ABORT_WAIT_ITER;
 555         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 556         struct qla_hw_data *ha = vha->hw;
 557         int ret = QLA_SUCCESS;
 558
 559         if (unlikely(pci_channel_offline(ha->pdev)) || ha->flags.eeh_busy) {
 560                 DEBUG17(qla_printk(KERN_WARNING, ha, "return:eh_wait\n"));
 561                 return ret;
 562         }
 563
 564         while (CMD_SP(cmd) && wait_iter--) {
 565                 msleep(ABORT_POLLING_PERIOD);
 566         }
 567         if (CMD_SP(cmd))
 568                 ret = QLA_FUNCTION_FAILED;
 569
 570         return ret;
 571 }
 572
 573 /*
 574  * qla2x00_wait_for_hba_online
 575  *    Wait till the HBA is online after going through
 576  *    <= MAX_RETRIES_OF_ISP_ABORT  or
 577  *    finally HBA is disabled ie marked offline
 578  *
 579  * Input:
 580  *     ha - pointer to host adapter structure
 581  *
 582  * Note:
 583  *    Does context switching-Release SPIN_LOCK
 584  *    (if any) before calling this routine.
 585  *
 586  * Return:
 587  *    Success (Adapter is online) : 0
 588  *    Failed  (Adapter is offline/disabled) : 1
 589  */
 590 int
 591 qla2x00_wait_for_hba_online(scsi_qla_host_t *vha)
 592 {
 593         int             return_status;
 594         unsigned long   wait_online;
 595         struct qla_hw_data *ha = vha->hw;
 596         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 597
 598         wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 599         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 600             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 601             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 602             ha->dpc_active) && time_before(jiffies, wait_online)) {
 603
 604                 msleep(1000);
 605         }
 606         if (base_vha->flags.online)
 607                 return_status = QLA_SUCCESS;
 608         else
 609                 return_status = QLA_FUNCTION_FAILED;
 610
 611         return (return_status);
 612 }
 613
 614 int
 615 qla2x00_wait_for_chip_reset(scsi_qla_host_t *vha)
 616 {
 617         int             return_status;
 618         unsigned long   wait_reset;
 619         struct qla_hw_data *ha = vha->hw;
 620         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 621
 622         wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 623         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 624             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 625             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 626             ha->dpc_active) && time_before(jiffies, wait_reset)) {
 627
 628                 msleep(1000);
 629
 630                 if (!test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags) &&
 631                     ha->flags.chip_reset_done)
 632                         break;
 633         }
 634         if (ha->flags.chip_reset_done)
 635                 return_status = QLA_SUCCESS;
 636         else
 637                 return_status = QLA_FUNCTION_FAILED;
 638
 639         return return_status;
 640 }
 641
 642 /*
 643  * qla2x00_wait_for_loop_ready
 644  *    Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
 645  *    to be in LOOP_READY state.
 646  * Input:
 647  *     ha - pointer to host adapter structure
 648  *
 649  * Note:
 650  *    Does context switching-Release SPIN_LOCK
 651  *    (if any) before calling this routine.
 652  *
 653  *
 654  * Return:
 655  *    Success (LOOP_READY) : 0
 656  *    Failed  (LOOP_NOT_READY) : 1
 657  */
 658 static inline int
 659 qla2x00_wait_for_loop_ready(scsi_qla_host_t *vha)
 660 {
 661         int      return_status = QLA_SUCCESS;
 662         unsigned long loop_timeout ;
 663         struct qla_hw_data *ha = vha->hw;
 664         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 665
 666         /* wait for 5 min at the max for loop to be ready */
 667         loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 668
 669         while ((!atomic_read(&base_vha->loop_down_timer) &&
 670             atomic_read(&base_vha->loop_state) == LOOP_DOWN) ||
 671             atomic_read(&base_vha->loop_state) != LOOP_READY) {
 672                 if (atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
 673                         return_status = QLA_FUNCTION_FAILED;
 674                         break;
 675                 }
 676                 msleep(1000);
 677                 if (time_after_eq(jiffies, loop_timeout)) {
 678                         return_status = QLA_FUNCTION_FAILED;
 679                         break;
 680                 }
 681         }
 682         return (return_status);
 683 }
 684
 685 void
 686 qla2x00_abort_fcport_cmds(fc_port_t *fcport)
 687 {
 688         int cnt;
 689         unsigned long flags;
 690         srb_t *sp;
 691         scsi_qla_host_t *vha = fcport->vha;
 692         struct qla_hw_data *ha = vha->hw;
 693         struct req_que *req;
 694
 695         spin_lock_irqsave(&ha->hardware_lock, flags);
 696         req = vha->req;
 697         for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
 698                 sp = req->outstanding_cmds[cnt];
 699                 if (!sp)
 700                         continue;
 701                 if (sp->fcport != fcport)
 702                         continue;
 703                 if (sp->ctx)
 704                         continue;
 705
 706                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 707                 if (ha->isp_ops->abort_command(sp)) {
 708                         DEBUG2(qla_printk(KERN_WARNING, ha,
 709                         "Abort failed --  %lx\n",
 710                         sp->cmd->serial_number));
 711                 } else {
 712                         if (qla2x00_eh_wait_on_command(sp->cmd) !=
 713                                 QLA_SUCCESS)
 714                                 DEBUG2(qla_printk(KERN_WARNING, ha,
 715                                 "Abort failed while waiting --  %lx\n",
 716                                 sp->cmd->serial_number));
 717                 }
 718                 spin_lock_irqsave(&ha->hardware_lock, flags);
 719         }
 720         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 721 }
 722
 723 /**************************************************************************
 724 * qla2xxx_eh_abort
 725 *
 726 * Description:
 727 *    The abort function will abort the specified command.
 728 *
 729 * Input:
 730 *    cmd = Linux SCSI command packet to be aborted.
 731 *
 732 * Returns:
 733 *    Either SUCCESS or FAILED.
 734 *
 735 * Note:
 736 *    Only return FAILED if command not returned by firmware.
 737 **************************************************************************/
 738 static int
 739 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
 740 {
 741         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 742         srb_t *sp;
 743         int ret, i;
 744         unsigned int id, lun;
 745         unsigned long serial;
 746         unsigned long flags;
 747         int wait = 0;
 748         struct qla_hw_data *ha = vha->hw;
 749         struct req_que *req = vha->req;
 750         srb_t *spt;
 751
 752         fc_block_scsi_eh(cmd);
 753
 754         if (!CMD_SP(cmd))
 755                 return SUCCESS;
 756
 757         ret = SUCCESS;
 758
 759         id = cmd->device->id;
 760         lun = cmd->device->lun;
 761         serial = cmd->serial_number;
 762         spt = (srb_t *) CMD_SP(cmd);
 763         if (!spt)
 764                 return SUCCESS;
 765
 766         /* Check active list for command command. */
 767         spin_lock_irqsave(&ha->hardware_lock, flags);
 768         for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
 769                 sp = req->outstanding_cmds[i];
 770
 771                 if (sp == NULL)
 772                         continue;
 773                 if (sp->ctx)
 774                         continue;
 775                 if (sp->cmd != cmd)
 776                         continue;
 777
 778                 DEBUG2(printk("%s(%ld): aborting sp %p from RISC."
 779                 " pid=%ld.\n", __func__, vha->host_no, sp, serial));
 780
 781                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 782                 if (ha->isp_ops->abort_command(sp)) {
 783                         DEBUG2(printk("%s(%ld): abort_command "
 784                         "mbx failed.\n", __func__, vha->host_no));
 785                         ret = FAILED;
 786                 } else {
 787                         DEBUG3(printk("%s(%ld): abort_command "
 788                         "mbx success.\n", __func__, vha->host_no));
 789                         wait = 1;
 790                 }
 791                 spin_lock_irqsave(&ha->hardware_lock, flags);
 792                 break;
 793         }
 794         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 795
 796         /* Wait for the command to be returned. */
 797         if (wait) {
 798                 if (qla2x00_eh_wait_on_command(cmd) != QLA_SUCCESS) {
 799                         qla_printk(KERN_ERR, ha,
 800                             "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
 801                             "%x.\n", vha->host_no, id, lun, serial, ret);
 802                         ret = FAILED;
 803                 }
 804         }
 805
 806         qla_printk(KERN_INFO, ha,
 807             "scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n",
 808             vha->host_no, id, lun, wait, serial, ret);
 809
 810         return ret;
 811 }
 812
 813 enum nexus_wait_type {
 814         WAIT_HOST = 0,
 815         WAIT_TARGET,
 816         WAIT_LUN,
 817 };
 818
 819 static int
 820 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *vha, unsigned int t,
 821         unsigned int l, srb_t *sp, enum nexus_wait_type type)
 822 {
 823         int cnt, match, status;
 824         unsigned long flags;
 825         struct qla_hw_data *ha = vha->hw;
 826         struct req_que *req;
 827
 828         status = QLA_SUCCESS;
 829         if (!sp)
 830                 return status;
 831
 832         spin_lock_irqsave(&ha->hardware_lock, flags);
 833         req = vha->req;
 834         for (cnt = 1; status == QLA_SUCCESS &&
 835                 cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
 836                 sp = req->outstanding_cmds[cnt];
 837                 if (!sp)
 838                         continue;
 839                 if (sp->ctx)
 840                         continue;
 841                 if (vha->vp_idx != sp->fcport->vha->vp_idx)
 842                         continue;
 843                 match = 0;
 844                 switch (type) {
 845                 case WAIT_HOST:
 846                         match = 1;
 847                         break;
 848                 case WAIT_TARGET:
 849                         match = sp->cmd->device->id == t;
 850                         break;
 851                 case WAIT_LUN:
 852                         match = (sp->cmd->device->id == t &&
 853                                 sp->cmd->device->lun == l);
 854                         break;
 855                 }
 856                 if (!match)
 857                         continue;
 858
 859                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 860                 status = qla2x00_eh_wait_on_command(sp->cmd);
 861                 spin_lock_irqsave(&ha->hardware_lock, flags);
 862         }
 863         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 864
 865         return status;
 866 }
 867
 868 static char *reset_errors[] = {
 869         "HBA not online",
 870         "HBA not ready",
 871         "Task management failed",
 872         "Waiting for command completions",
 873 };
 874
 875 static int
 876 __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
 877     struct scsi_cmnd *cmd, int (*do_reset)(struct fc_port *, unsigned int, int))
 878 {
 879         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 880         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 881         int err;
 882
 883         fc_block_scsi_eh(cmd);
 884
 885         if (!fcport)
 886                 return FAILED;
 887
 888         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET ISSUED.\n",
 889             vha->host_no, cmd->device->id, cmd->device->lun, name);
 890
 891         err = 0;
 892         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
 893                 goto eh_reset_failed;
 894         err = 1;
 895         if (qla2x00_wait_for_loop_ready(vha) != QLA_SUCCESS)
 896                 goto eh_reset_failed;
 897         err = 2;
 898         if (do_reset(fcport, cmd->device->lun, cmd->request->cpu + 1)
 899                 != QLA_SUCCESS)
 900                 goto eh_reset_failed;
 901         err = 3;
 902         if (qla2x00_eh_wait_for_pending_commands(vha, cmd->device->id,
 903             cmd->device->lun, (srb_t *) CMD_SP(cmd), type) != QLA_SUCCESS)
 904                 goto eh_reset_failed;
 905
 906         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET SUCCEEDED.\n",
 907             vha->host_no, cmd->device->id, cmd->device->lun, name);
 908
 909         return SUCCESS;
 910
 911  eh_reset_failed:
 912         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET FAILED: %s.\n"
 913             , vha->host_no, cmd->device->id, cmd->device->lun, name,
 914             reset_errors[err]);
 915         return FAILED;
 916 }
 917
 918 static int
 919 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
 920 {
 921         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 922         struct qla_hw_data *ha = vha->hw;
 923
 924         return __qla2xxx_eh_generic_reset("DEVICE", WAIT_LUN, cmd,
 925             ha->isp_ops->lun_reset);
 926 }
 927
 928 static int
 929 qla2xxx_eh_target_reset(struct scsi_cmnd *cmd)
 930 {
 931         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 932         struct qla_hw_data *ha = vha->hw;
 933
 934         return __qla2xxx_eh_generic_reset("TARGET", WAIT_TARGET, cmd,
 935             ha->isp_ops->target_reset);
 936 }
 937
 938 /**************************************************************************
 939 * qla2xxx_eh_bus_reset
 940 *
 941 * Description:
 942 *    The bus reset function will reset the bus and abort any executing
 943 *    commands.
 944 *
 945 * Input:
 946 *    cmd = Linux SCSI command packet of the command that cause the
 947 *          bus reset.
 948 *
 949 * Returns:
 950 *    SUCCESS/FAILURE (defined as macro in scsi.h).
 951 *
 952 **************************************************************************/
 953 static int
 954 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
 955 {
 956         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 957         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 958         int ret = FAILED;
 959         unsigned int id, lun;
 960         unsigned long serial;
 961         srb_t *sp = (srb_t *) CMD_SP(cmd);
 962
 963         fc_block_scsi_eh(cmd);
 964
 965         id = cmd->device->id;
 966         lun = cmd->device->lun;
 967         serial = cmd->serial_number;
 968
 969         if (!fcport)
 970                 return ret;
 971
 972         qla_printk(KERN_INFO, vha->hw,
 973             "scsi(%ld:%d:%d): BUS RESET ISSUED.\n", vha->host_no, id, lun);
 974
 975         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
 976                 DEBUG2(printk("%s failed:board disabled\n",__func__));
 977                 goto eh_bus_reset_done;
 978         }
 979
 980         if (qla2x00_wait_for_loop_ready(vha) == QLA_SUCCESS) {
 981                 if (qla2x00_loop_reset(vha) == QLA_SUCCESS)
 982                         ret = SUCCESS;
 983         }
 984         if (ret == FAILED)
 985                 goto eh_bus_reset_done;
 986
 987         /* Flush outstanding commands. */
 988         if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, sp, WAIT_HOST) !=
 989             QLA_SUCCESS)
 990                 ret = FAILED;
 991
 992 eh_bus_reset_done:
 993         qla_printk(KERN_INFO, vha->hw, "%s: reset %s\n", __func__,
 994             (ret == FAILED) ? "failed" : "succeded");
 995
 996         return ret;
 997 }
 998
 999 /**************************************************************************
1000 * qla2xxx_eh_host_reset
1001 *
1002 * Description:
1003 *    The reset function will reset the Adapter.
1004 *
1005 * Input:
1006 *      cmd = Linux SCSI command packet of the command that cause the
1007 *            adapter reset.
1008 *
1009 * Returns:
1010 *      Either SUCCESS or FAILED.
1011 *
1012 * Note:
1013 **************************************************************************/
1014 static int
1015 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
1016 {
1017         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1018         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1019         struct qla_hw_data *ha = vha->hw;
1020         int ret = FAILED;
1021         unsigned int id, lun;
1022         unsigned long serial;
1023         srb_t *sp = (srb_t *) CMD_SP(cmd);
1024         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1025
1026         fc_block_scsi_eh(cmd);
1027
1028         id = cmd->device->id;
1029         lun = cmd->device->lun;
1030         serial = cmd->serial_number;
1031
1032         if (!fcport)
1033                 return ret;
1034
1035         qla_printk(KERN_INFO, ha,
1036             "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", vha->host_no, id, lun);
1037
1038         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
1039                 goto eh_host_reset_lock;
1040
1041         /*
1042          * Fixme-may be dpc thread is active and processing
1043          * loop_resync,so wait a while for it to
1044          * be completed and then issue big hammer.Otherwise
1045          * it may cause I/O failure as big hammer marks the
1046          * devices as lost kicking of the port_down_timer
1047          * while dpc is stuck for the mailbox to complete.
1048          */
1049         qla2x00_wait_for_loop_ready(vha);
1050         if (vha != base_vha) {
1051                 if (qla2x00_vp_abort_isp(vha))
1052                         goto eh_host_reset_lock;
1053         } else {
1054                 if (ha->wq)
1055                         flush_workqueue(ha->wq);
1056
1057                 set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1058                 if (qla2x00_abort_isp(base_vha)) {
1059                         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1060                         /* failed. schedule dpc to try */
1061                         set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags);
1062
1063                         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
1064                                 goto eh_host_reset_lock;
1065                 }
1066                 clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1067         }
1068
1069         /* Waiting for command to be returned to OS.*/
1070         if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, sp, WAIT_HOST) ==
1071                 QLA_SUCCESS)
1072                 ret = SUCCESS;
1073
1074 eh_host_reset_lock:
1075         qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
1076             (ret == FAILED) ? "failed" : "succeded");
1077
1078         return ret;
1079 }
1080
1081 /*
1082 * qla2x00_loop_reset
1083 *      Issue loop reset.
1084 *
1085 * Input:
1086 *      ha = adapter block pointer.
1087 *
1088 * Returns:
1089 *      0 = success
1090 */
1091 int
1092 qla2x00_loop_reset(scsi_qla_host_t *vha)
1093 {
1094         int ret;
1095         struct fc_port *fcport;
1096         struct qla_hw_data *ha = vha->hw;
1097
1098         if (ha->flags.enable_lip_full_login && !IS_QLA81XX(ha)) {
1099                 ret = qla2x00_full_login_lip(vha);
1100                 if (ret != QLA_SUCCESS) {
1101                         DEBUG2_3(printk("%s(%ld): failed: "
1102                             "full_login_lip=%d.\n", __func__, vha->host_no,
1103                             ret));
1104                 }
1105                 atomic_set(&vha->loop_state, LOOP_DOWN);
1106                 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1107                 qla2x00_mark_all_devices_lost(vha, 0);
1108                 qla2x00_wait_for_loop_ready(vha);
1109         }
1110
1111         if (ha->flags.enable_lip_reset) {
1112                 ret = qla2x00_lip_reset(vha);
1113                 if (ret != QLA_SUCCESS) {
1114                         DEBUG2_3(printk("%s(%ld): failed: "
1115                             "lip_reset=%d.\n", __func__, vha->host_no, ret));
1116                 } else
1117                         qla2x00_wait_for_loop_ready(vha);
1118         }
1119
1120         if (ha->flags.enable_target_reset) {
1121                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
1122                         if (fcport->port_type != FCT_TARGET)
1123                                 continue;
1124
1125                         ret = ha->isp_ops->target_reset(fcport, 0, 0);
1126                         if (ret != QLA_SUCCESS) {
1127                                 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1128                                     "target_reset=%d d_id=%x.\n", __func__,
1129                                     vha->host_no, ret, fcport->d_id.b24));
1130                         }
1131                 }
1132         }
1133         /* Issue marker command only when we are going to start the I/O */
1134         vha->marker_needed = 1;
1135
1136         return QLA_SUCCESS;
1137 }
1138
1139 void
1140 qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res)
1141 {
1142         int que, cnt;
1143         unsigned long flags;
1144         srb_t *sp;
1145         struct srb_ctx *ctx;
1146         struct qla_hw_data *ha = vha->hw;
1147         struct req_que *req;
1148
1149         spin_lock_irqsave(&ha->hardware_lock, flags);
1150         for (que = 0; que < ha->max_req_queues; que++) {
1151                 req = ha->req_q_map[que];
1152                 if (!req)
1153                         continue;
1154                 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
1155                         sp = req->outstanding_cmds[cnt];
1156                         if (sp) {
1157                                 req->outstanding_cmds[cnt] = NULL;
1158                                 if (!sp->ctx) {
1159                                         sp->cmd->result = res;
1160                                         qla2x00_sp_compl(ha, sp);
1161                                 } else {
1162                                         ctx = sp->ctx;
1163                                         del_timer_sync(&ctx->timer);
1164                                         ctx->free(sp);
1165                                 }
1166                         }
1167                 }
1168         }
1169         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1170 }
1171
1172 static int
1173 qla2xxx_slave_alloc(struct scsi_device *sdev)
1174 {
1175         struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1176
1177         if (!rport || fc_remote_port_chkready(rport))
1178                 return -ENXIO;
1179
1180         sdev->hostdata = *(fc_port_t **)rport->dd_data;
1181
1182         return 0;
1183 }
1184
1185 static int
1186 qla2xxx_slave_configure(struct scsi_device *sdev)
1187 {
1188         scsi_qla_host_t *vha = shost_priv(sdev->host);
1189         struct qla_hw_data *ha = vha->hw;
1190         struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1191         struct req_que *req = vha->req;
1192
1193         if (sdev->tagged_supported)
1194                 scsi_activate_tcq(sdev, req->max_q_depth);
1195         else
1196                 scsi_deactivate_tcq(sdev, req->max_q_depth);
1197
1198         rport->dev_loss_tmo = ha->port_down_retry_count;
1199
1200         return 0;
1201 }
1202
1203 static void
1204 qla2xxx_slave_destroy(struct scsi_device *sdev)
1205 {
1206         sdev->hostdata = NULL;
1207 }
1208
1209 static void qla2x00_handle_queue_full(struct scsi_device *sdev, int qdepth)
1210 {
1211         fc_port_t *fcport = (struct fc_port *) sdev->hostdata;
1212
1213         if (!scsi_track_queue_full(sdev, qdepth))
1214                 return;
1215
1216         DEBUG2(qla_printk(KERN_INFO, fcport->vha->hw,
1217                 "scsi(%ld:%d:%d:%d): Queue depth adjusted-down to %d.\n",
1218                 fcport->vha->host_no, sdev->channel, sdev->id, sdev->lun,
1219                 sdev->queue_depth));
1220 }
1221
1222 static void qla2x00_adjust_sdev_qdepth_up(struct scsi_device *sdev, int qdepth)
1223 {
1224         fc_port_t *fcport = sdev->hostdata;
1225         struct scsi_qla_host *vha = fcport->vha;
1226         struct qla_hw_data *ha = vha->hw;
1227         struct req_que *req = NULL;
1228
1229         req = vha->req;
1230         if (!req)
1231                 return;
1232
1233         if (req->max_q_depth <= sdev->queue_depth || req->max_q_depth < qdepth)
1234                 return;
1235
1236         if (sdev->ordered_tags)
1237                 scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, qdepth);
1238         else
1239                 scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, qdepth);
1240
1241         DEBUG2(qla_printk(KERN_INFO, ha,
1242                "scsi(%ld:%d:%d:%d): Queue depth adjusted-up to %d.\n",
1243                fcport->vha->host_no, sdev->channel, sdev->id, sdev->lun,
1244                sdev->queue_depth));
1245 }
1246
1247 static int
1248 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
1249 {
1250         switch (reason) {
1251         case SCSI_QDEPTH_DEFAULT:
1252                 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1253                 break;
1254         case SCSI_QDEPTH_QFULL:
1255                 qla2x00_handle_queue_full(sdev, qdepth);
1256                 break;
1257         case SCSI_QDEPTH_RAMP_UP:
1258                 qla2x00_adjust_sdev_qdepth_up(sdev, qdepth);
1259                 break;
1260         default:
1261                 return EOPNOTSUPP;
1262         }
1263
1264         return sdev->queue_depth;
1265 }
1266
1267 static int
1268 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1269 {
1270         if (sdev->tagged_supported) {
1271                 scsi_set_tag_type(sdev, tag_type);
1272                 if (tag_type)
1273                         scsi_activate_tcq(sdev, sdev->queue_depth);
1274                 else
1275                         scsi_deactivate_tcq(sdev, sdev->queue_depth);
1276         } else
1277                 tag_type = 0;
1278
1279         return tag_type;
1280 }
1281
1282 /**
1283  * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1284  * @ha: HA context
1285  *
1286  * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1287  * supported addressing method.
1288  */
1289 static void
1290 qla2x00_config_dma_addressing(struct qla_hw_data *ha)
1291 {
1292         /* Assume a 32bit DMA mask. */
1293         ha->flags.enable_64bit_addressing = 0;
1294
1295         if (!dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(64))) {
1296                 /* Any upper-dword bits set? */
1297                 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1298                     !pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
1299                         /* Ok, a 64bit DMA mask is applicable. */
1300                         ha->flags.enable_64bit_addressing = 1;
1301                         ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1302                         ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1303                         return;
1304                 }
1305         }
1306
1307         dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(32));
1308         pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(32));
1309 }
1310
1311 static void
1312 qla2x00_enable_intrs(struct qla_hw_data *ha)
1313 {
1314         unsigned long flags = 0;
1315         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1316
1317         spin_lock_irqsave(&ha->hardware_lock, flags);
1318         ha->interrupts_on = 1;
1319         /* enable risc and host interrupts */
1320         WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1321         RD_REG_WORD(&reg->ictrl);
1322         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1323
1324 }
1325
1326 static void
1327 qla2x00_disable_intrs(struct qla_hw_data *ha)
1328 {
1329         unsigned long flags = 0;
1330         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1331
1332         spin_lock_irqsave(&ha->hardware_lock, flags);
1333         ha->interrupts_on = 0;
1334         /* disable risc and host interrupts */
1335         WRT_REG_WORD(&reg->ictrl, 0);
1336         RD_REG_WORD(&reg->ictrl);
1337         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1338 }
1339
1340 static void
1341 qla24xx_enable_intrs(struct qla_hw_data *ha)
1342 {
1343         unsigned long flags = 0;
1344         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1345
1346         spin_lock_irqsave(&ha->hardware_lock, flags);
1347         ha->interrupts_on = 1;
1348         WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1349         RD_REG_DWORD(&reg->ictrl);
1350         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1351 }
1352
1353 static void
1354 qla24xx_disable_intrs(struct qla_hw_data *ha)
1355 {
1356         unsigned long flags = 0;
1357         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1358
1359         if (IS_NOPOLLING_TYPE(ha))
1360                 return;
1361         spin_lock_irqsave(&ha->hardware_lock, flags);
1362         ha->interrupts_on = 0;
1363         WRT_REG_DWORD(&reg->ictrl, 0);
1364         RD_REG_DWORD(&reg->ictrl);
1365         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1366 }
1367
1368 static struct isp_operations qla2100_isp_ops = {
1369         .pci_config             = qla2100_pci_config,
1370         .reset_chip             = qla2x00_reset_chip,
1371         .chip_diag              = qla2x00_chip_diag,
1372         .config_rings           = qla2x00_config_rings,
1373         .reset_adapter          = qla2x00_reset_adapter,
1374         .nvram_config           = qla2x00_nvram_config,
1375         .update_fw_options      = qla2x00_update_fw_options,
1376         .load_risc              = qla2x00_load_risc,
1377         .pci_info_str           = qla2x00_pci_info_str,
1378         .fw_version_str         = qla2x00_fw_version_str,
1379         .intr_handler           = qla2100_intr_handler,
1380         .enable_intrs           = qla2x00_enable_intrs,
1381         .disable_intrs          = qla2x00_disable_intrs,
1382         .abort_command          = qla2x00_abort_command,
1383         .target_reset           = qla2x00_abort_target,
1384         .lun_reset              = qla2x00_lun_reset,
1385         .fabric_login           = qla2x00_login_fabric,
1386         .fabric_logout          = qla2x00_fabric_logout,
1387         .calc_req_entries       = qla2x00_calc_iocbs_32,
1388         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1389         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1390         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1391         .read_nvram             = qla2x00_read_nvram_data,
1392         .write_nvram            = qla2x00_write_nvram_data,
1393         .fw_dump                = qla2100_fw_dump,
1394         .beacon_on              = NULL,
1395         .beacon_off             = NULL,
1396         .beacon_blink           = NULL,
1397         .read_optrom            = qla2x00_read_optrom_data,
1398         .write_optrom           = qla2x00_write_optrom_data,
1399         .get_flash_version      = qla2x00_get_flash_version,
1400         .start_scsi             = qla2x00_start_scsi,
1401 };
1402
1403 static struct isp_operations qla2300_isp_ops = {
1404         .pci_config             = qla2300_pci_config,
1405         .reset_chip             = qla2x00_reset_chip,
1406         .chip_diag              = qla2x00_chip_diag,
1407         .config_rings           = qla2x00_config_rings,
1408         .reset_adapter          = qla2x00_reset_adapter,
1409         .nvram_config           = qla2x00_nvram_config,
1410         .update_fw_options      = qla2x00_update_fw_options,
1411         .load_risc              = qla2x00_load_risc,
1412         .pci_info_str           = qla2x00_pci_info_str,
1413         .fw_version_str         = qla2x00_fw_version_str,
1414         .intr_handler           = qla2300_intr_handler,
1415         .enable_intrs           = qla2x00_enable_intrs,
1416         .disable_intrs          = qla2x00_disable_intrs,
1417         .abort_command          = qla2x00_abort_command,
1418         .target_reset           = qla2x00_abort_target,
1419         .lun_reset              = qla2x00_lun_reset,
1420         .fabric_login           = qla2x00_login_fabric,
1421         .fabric_logout          = qla2x00_fabric_logout,
1422         .calc_req_entries       = qla2x00_calc_iocbs_32,
1423         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1424         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1425         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1426         .read_nvram             = qla2x00_read_nvram_data,
1427         .write_nvram            = qla2x00_write_nvram_data,
1428         .fw_dump                = qla2300_fw_dump,
1429         .beacon_on              = qla2x00_beacon_on,
1430         .beacon_off             = qla2x00_beacon_off,
1431         .beacon_blink           = qla2x00_beacon_blink,
1432         .read_optrom            = qla2x00_read_optrom_data,
1433         .write_optrom           = qla2x00_write_optrom_data,
1434         .get_flash_version      = qla2x00_get_flash_version,
1435         .start_scsi             = qla2x00_start_scsi,
1436 };
1437
1438 static struct isp_operations qla24xx_isp_ops = {
1439         .pci_config             = qla24xx_pci_config,
1440         .reset_chip             = qla24xx_reset_chip,
1441         .chip_diag              = qla24xx_chip_diag,
1442         .config_rings           = qla24xx_config_rings,
1443         .reset_adapter          = qla24xx_reset_adapter,
1444         .nvram_config           = qla24xx_nvram_config,
1445         .update_fw_options      = qla24xx_update_fw_options,
1446         .load_risc              = qla24xx_load_risc,
1447         .pci_info_str           = qla24xx_pci_info_str,
1448         .fw_version_str         = qla24xx_fw_version_str,
1449         .intr_handler           = qla24xx_intr_handler,
1450         .enable_intrs           = qla24xx_enable_intrs,
1451         .disable_intrs          = qla24xx_disable_intrs,
1452         .abort_command          = qla24xx_abort_command,
1453         .target_reset           = qla24xx_abort_target,
1454         .lun_reset              = qla24xx_lun_reset,
1455         .fabric_login           = qla24xx_login_fabric,
1456         .fabric_logout          = qla24xx_fabric_logout,
1457         .calc_req_entries       = NULL,
1458         .build_iocbs            = NULL,
1459         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1460         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1461         .read_nvram             = qla24xx_read_nvram_data,
1462         .write_nvram            = qla24xx_write_nvram_data,
1463         .fw_dump                = qla24xx_fw_dump,
1464         .beacon_on              = qla24xx_beacon_on,
1465         .beacon_off             = qla24xx_beacon_off,
1466         .beacon_blink           = qla24xx_beacon_blink,
1467         .read_optrom            = qla24xx_read_optrom_data,
1468         .write_optrom           = qla24xx_write_optrom_data,
1469         .get_flash_version      = qla24xx_get_flash_version,
1470         .start_scsi             = qla24xx_start_scsi,
1471 };
1472
1473 static struct isp_operations qla25xx_isp_ops = {
1474         .pci_config             = qla25xx_pci_config,
1475         .reset_chip             = qla24xx_reset_chip,
1476         .chip_diag              = qla24xx_chip_diag,
1477         .config_rings           = qla24xx_config_rings,
1478         .reset_adapter          = qla24xx_reset_adapter,
1479         .nvram_config           = qla24xx_nvram_config,
1480         .update_fw_options      = qla24xx_update_fw_options,
1481         .load_risc              = qla24xx_load_risc,
1482         .pci_info_str           = qla24xx_pci_info_str,
1483         .fw_version_str         = qla24xx_fw_version_str,
1484         .intr_handler           = qla24xx_intr_handler,
1485         .enable_intrs           = qla24xx_enable_intrs,
1486         .disable_intrs          = qla24xx_disable_intrs,
1487         .abort_command          = qla24xx_abort_command,
1488         .target_reset           = qla24xx_abort_target,
1489         .lun_reset              = qla24xx_lun_reset,
1490         .fabric_login           = qla24xx_login_fabric,
1491         .fabric_logout          = qla24xx_fabric_logout,
1492         .calc_req_entries       = NULL,
1493         .build_iocbs            = NULL,
1494         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1495         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1496         .read_nvram             = qla25xx_read_nvram_data,
1497         .write_nvram            = qla25xx_write_nvram_data,
1498         .fw_dump                = qla25xx_fw_dump,
1499         .beacon_on              = qla24xx_beacon_on,
1500         .beacon_off             = qla24xx_beacon_off,
1501         .beacon_blink           = qla24xx_beacon_blink,
1502         .read_optrom            = qla25xx_read_optrom_data,
1503         .write_optrom           = qla24xx_write_optrom_data,
1504         .get_flash_version      = qla24xx_get_flash_version,
1505         .start_scsi             = qla24xx_start_scsi,
1506 };
1507
1508 static struct isp_operations qla81xx_isp_ops = {
1509         .pci_config             = qla25xx_pci_config,
1510         .reset_chip             = qla24xx_reset_chip,
1511         .chip_diag              = qla24xx_chip_diag,
1512         .config_rings           = qla24xx_config_rings,
1513         .reset_adapter          = qla24xx_reset_adapter,
1514         .nvram_config           = qla81xx_nvram_config,
1515         .update_fw_options      = qla81xx_update_fw_options,
1516         .load_risc              = qla81xx_load_risc,
1517         .pci_info_str           = qla24xx_pci_info_str,
1518         .fw_version_str         = qla24xx_fw_version_str,
1519         .intr_handler           = qla24xx_intr_handler,
1520         .enable_intrs           = qla24xx_enable_intrs,
1521         .disable_intrs          = qla24xx_disable_intrs,
1522         .abort_command          = qla24xx_abort_command,
1523         .target_reset           = qla24xx_abort_target,
1524         .lun_reset              = qla24xx_lun_reset,
1525         .fabric_login           = qla24xx_login_fabric,
1526         .fabric_logout          = qla24xx_fabric_logout,
1527         .calc_req_entries       = NULL,
1528         .build_iocbs            = NULL,
1529         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1530         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1531         .read_nvram             = NULL,
1532         .write_nvram            = NULL,
1533         .fw_dump                = qla81xx_fw_dump,
1534         .beacon_on              = qla24xx_beacon_on,
1535         .beacon_off             = qla24xx_beacon_off,
1536         .beacon_blink           = qla24xx_beacon_blink,
1537         .read_optrom            = qla25xx_read_optrom_data,
1538         .write_optrom           = qla24xx_write_optrom_data,
1539         .get_flash_version      = qla24xx_get_flash_version,
1540         .start_scsi             = qla24xx_start_scsi,
1541 };
1542
1543 static inline void
1544 qla2x00_set_isp_flags(struct qla_hw_data *ha)
1545 {
1546         ha->device_type = DT_EXTENDED_IDS;
1547         switch (ha->pdev->device) {
1548         case PCI_DEVICE_ID_QLOGIC_ISP2100:
1549                 ha->device_type |= DT_ISP2100;
1550                 ha->device_type &= ~DT_EXTENDED_IDS;
1551                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1552                 break;
1553         case PCI_DEVICE_ID_QLOGIC_ISP2200:
1554                 ha->device_type |= DT_ISP2200;
1555                 ha->device_type &= ~DT_EXTENDED_IDS;
1556                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1557                 break;
1558         case PCI_DEVICE_ID_QLOGIC_ISP2300:
1559                 ha->device_type |= DT_ISP2300;
1560                 ha->device_type |= DT_ZIO_SUPPORTED;
1561                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1562                 break;
1563         case PCI_DEVICE_ID_QLOGIC_ISP2312:
1564                 ha->device_type |= DT_ISP2312;
1565                 ha->device_type |= DT_ZIO_SUPPORTED;
1566                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1567                 break;
1568         case PCI_DEVICE_ID_QLOGIC_ISP2322:
1569                 ha->device_type |= DT_ISP2322;
1570                 ha->device_type |= DT_ZIO_SUPPORTED;
1571                 if (ha->pdev->subsystem_vendor == 0x1028 &&
1572                     ha->pdev->subsystem_device == 0x0170)
1573                         ha->device_type |= DT_OEM_001;
1574                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1575                 break;
1576         case PCI_DEVICE_ID_QLOGIC_ISP6312:
1577                 ha->device_type |= DT_ISP6312;
1578                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1579                 break;
1580         case PCI_DEVICE_ID_QLOGIC_ISP6322:
1581                 ha->device_type |= DT_ISP6322;
1582                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1583                 break;
1584         case PCI_DEVICE_ID_QLOGIC_ISP2422:
1585                 ha->device_type |= DT_ISP2422;
1586                 ha->device_type |= DT_ZIO_SUPPORTED;
1587                 ha->device_type |= DT_FWI2;
1588                 ha->device_type |= DT_IIDMA;
1589                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1590                 break;
1591         case PCI_DEVICE_ID_QLOGIC_ISP2432:
1592                 ha->device_type |= DT_ISP2432;
1593                 ha->device_type |= DT_ZIO_SUPPORTED;
1594                 ha->device_type |= DT_FWI2;
1595                 ha->device_type |= DT_IIDMA;
1596                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1597                 break;
1598         case PCI_DEVICE_ID_QLOGIC_ISP8432:
1599                 ha->device_type |= DT_ISP8432;
1600                 ha->device_type |= DT_ZIO_SUPPORTED;
1601                 ha->device_type |= DT_FWI2;
1602                 ha->device_type |= DT_IIDMA;
1603                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1604                 break;
1605         case PCI_DEVICE_ID_QLOGIC_ISP5422:
1606                 ha->device_type |= DT_ISP5422;
1607                 ha->device_type |= DT_FWI2;
1608                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1609                 break;
1610         case PCI_DEVICE_ID_QLOGIC_ISP5432:
1611                 ha->device_type |= DT_ISP5432;
1612                 ha->device_type |= DT_FWI2;
1613                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1614                 break;
1615         case PCI_DEVICE_ID_QLOGIC_ISP2532:
1616                 ha->device_type |= DT_ISP2532;
1617                 ha->device_type |= DT_ZIO_SUPPORTED;
1618                 ha->device_type |= DT_FWI2;
1619                 ha->device_type |= DT_IIDMA;
1620                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1621                 break;
1622         case PCI_DEVICE_ID_QLOGIC_ISP8001:
1623                 ha->device_type |= DT_ISP8001;
1624                 ha->device_type |= DT_ZIO_SUPPORTED;
1625                 ha->device_type |= DT_FWI2;
1626                 ha->device_type |= DT_IIDMA;
1627                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1628                 break;
1629         }
1630
1631         /* Get adapter physical port no from interrupt pin register. */
1632         pci_read_config_byte(ha->pdev, PCI_INTERRUPT_PIN, &ha->port_no);
1633         if (ha->port_no & 1)
1634                 ha->flags.port0 = 1;
1635         else
1636                 ha->flags.port0 = 0;
1637 }
1638
1639 static int
1640 qla2x00_iospace_config(struct qla_hw_data *ha)
1641 {
1642         resource_size_t pio;
1643         uint16_t msix;
1644         int cpus;
1645
1646         if (pci_request_selected_regions(ha->pdev, ha->bars,
1647             QLA2XXX_DRIVER_NAME)) {
1648                 qla_printk(KERN_WARNING, ha,
1649                     "Failed to reserve PIO/MMIO regions (%s)\n",
1650                     pci_name(ha->pdev));
1651
1652                 goto iospace_error_exit;
1653         }
1654         if (!(ha->bars & 1))
1655                 goto skip_pio;
1656
1657         /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1658         pio = pci_resource_start(ha->pdev, 0);
1659         if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
1660                 if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1661                         qla_printk(KERN_WARNING, ha,
1662                             "Invalid PCI I/O region size (%s)...\n",
1663                                 pci_name(ha->pdev));
1664                         pio = 0;
1665                 }
1666         } else {
1667                 qla_printk(KERN_WARNING, ha,
1668                     "region #0 not a PIO resource (%s)...\n",
1669                     pci_name(ha->pdev));
1670                 pio = 0;
1671         }
1672         ha->pio_address = pio;
1673
1674 skip_pio:
1675         /* Use MMIO operations for all accesses. */
1676         if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
1677                 qla_printk(KERN_ERR, ha,
1678                     "region #1 not an MMIO resource (%s), aborting\n",
1679                     pci_name(ha->pdev));
1680                 goto iospace_error_exit;
1681         }
1682         if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
1683                 qla_printk(KERN_ERR, ha,
1684                     "Invalid PCI mem region size (%s), aborting\n",
1685                         pci_name(ha->pdev));
1686                 goto iospace_error_exit;
1687         }
1688
1689         ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
1690         if (!ha->iobase) {
1691                 qla_printk(KERN_ERR, ha,
1692                     "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1693
1694                 goto iospace_error_exit;
1695         }
1696
1697         /* Determine queue resources */
1698         ha->max_req_queues = ha->max_rsp_queues = 1;
1699         if ((ql2xmaxqueues <= 1 || ql2xmultique_tag < 1) &&
1700                 (!IS_QLA25XX(ha) && !IS_QLA81XX(ha)))
1701                 goto mqiobase_exit;
1702         ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 3),
1703                         pci_resource_len(ha->pdev, 3));
1704         if (ha->mqiobase) {
1705                 /* Read MSIX vector size of the board */
1706                 pci_read_config_word(ha->pdev, QLA_PCI_MSIX_CONTROL, &msix);
1707                 ha->msix_count = msix;
1708                 /* Max queues are bounded by available msix vectors */
1709                 /* queue 0 uses two msix vectors */
1710                 if (ql2xmultique_tag) {
1711                         cpus = num_online_cpus();
1712                         ha->max_rsp_queues = (ha->msix_count - 1 > cpus) ?
1713                                 (cpus + 1) : (ha->msix_count - 1);
1714                         ha->max_req_queues = 2;
1715                 } else if (ql2xmaxqueues > 1) {
1716                         ha->max_req_queues = ql2xmaxqueues > QLA_MQ_SIZE ?
1717                                                 QLA_MQ_SIZE : ql2xmaxqueues;
1718                         DEBUG2(qla_printk(KERN_INFO, ha, "QoS mode set, max no"
1719                         " of request queues:%d\n", ha->max_req_queues));
1720                 }
1721                 qla_printk(KERN_INFO, ha,
1722                         "MSI-X vector count: %d\n", msix);
1723         } else
1724                 qla_printk(KERN_INFO, ha, "BAR 3 not enabled\n");
1725
1726 mqiobase_exit:
1727         ha->msix_count = ha->max_rsp_queues + 1;
1728         return (0);
1729
1730 iospace_error_exit:
1731         return (-ENOMEM);
1732 }
1733
1734 static void
1735 qla2xxx_scan_start(struct Scsi_Host *shost)
1736 {
1737         scsi_qla_host_t *vha = shost_priv(shost);
1738
1739         if (vha->hw->flags.running_gold_fw)
1740                 return;
1741
1742         set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1743         set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1744         set_bit(RSCN_UPDATE, &vha->dpc_flags);
1745         set_bit(NPIV_CONFIG_NEEDED, &vha->dpc_flags);
1746 }
1747
1748 static int
1749 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1750 {
1751         scsi_qla_host_t *vha = shost_priv(shost);
1752
1753         if (!vha->host)
1754                 return 1;
1755         if (time > vha->hw->loop_reset_delay * HZ)
1756                 return 1;
1757
1758         return atomic_read(&vha->loop_state) == LOOP_READY;
1759 }
1760
1761 /*
1762  * PCI driver interface
1763  */
1764 static int __devinit
1765 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1766 {
1767         int     ret = -ENODEV;
1768         struct Scsi_Host *host;
1769         scsi_qla_host_t *base_vha = NULL;
1770         struct qla_hw_data *ha;
1771         char pci_info[30];
1772         char fw_str[30];
1773         struct scsi_host_template *sht;
1774         int bars, max_id, mem_only = 0;
1775         uint16_t req_length = 0, rsp_length = 0;
1776         struct req_que *req = NULL;
1777         struct rsp_que *rsp = NULL;
1778
1779         bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
1780         sht = &qla2xxx_driver_template;
1781         if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1782             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1783             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8432 ||
1784             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1785             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
1786             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532 ||
1787             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8001) {
1788                 bars = pci_select_bars(pdev, IORESOURCE_MEM);
1789                 mem_only = 1;
1790         }
1791
1792         if (mem_only) {
1793                 if (pci_enable_device_mem(pdev))
1794                         goto probe_out;
1795         } else {
1796                 if (pci_enable_device(pdev))
1797                         goto probe_out;
1798         }
1799
1800         /* This may fail but that's ok */
1801         pci_enable_pcie_error_reporting(pdev);
1802
1803         ha = kzalloc(sizeof(struct qla_hw_data), GFP_KERNEL);
1804         if (!ha) {
1805                 DEBUG(printk("Unable to allocate memory for ha\n"));
1806                 goto probe_out;
1807         }
1808         ha->pdev = pdev;
1809
1810         /* Clear our data area */
1811         ha->bars = bars;
1812         ha->mem_only = mem_only;
1813         spin_lock_init(&ha->hardware_lock);
1814
1815         /* Set ISP-type information. */
1816         qla2x00_set_isp_flags(ha);
1817
1818         /* Set EEH reset type to fundamental if required by hba */
1819         if ( IS_QLA24XX(ha) || IS_QLA25XX(ha) || IS_QLA81XX(ha)) {
1820                 pdev->needs_freset = 1;
1821                 pci_save_state(pdev);
1822         }
1823
1824         /* Configure PCI I/O space */
1825         ret = qla2x00_iospace_config(ha);
1826         if (ret)
1827                 goto probe_hw_failed;
1828
1829         qla_printk(KERN_INFO, ha,
1830             "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1831             ha->iobase);
1832
1833         ha->prev_topology = 0;
1834         ha->init_cb_size = sizeof(init_cb_t);
1835         ha->link_data_rate = PORT_SPEED_UNKNOWN;
1836         ha->optrom_size = OPTROM_SIZE_2300;
1837
1838         /* Assign ISP specific operations. */
1839         max_id = MAX_TARGETS_2200;
1840         if (IS_QLA2100(ha)) {
1841                 max_id = MAX_TARGETS_2100;
1842                 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1843                 req_length = REQUEST_ENTRY_CNT_2100;
1844                 rsp_length = RESPONSE_ENTRY_CNT_2100;
1845                 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
1846                 ha->gid_list_info_size = 4;
1847                 ha->flash_conf_off = ~0;
1848                 ha->flash_data_off = ~0;
1849                 ha->nvram_conf_off = ~0;
1850                 ha->nvram_data_off = ~0;
1851                 ha->isp_ops = &qla2100_isp_ops;
1852         } else if (IS_QLA2200(ha)) {
1853                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1854                 req_length = REQUEST_ENTRY_CNT_2200;
1855                 rsp_length = RESPONSE_ENTRY_CNT_2100;
1856                 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
1857                 ha->gid_list_info_size = 4;
1858                 ha->flash_conf_off = ~0;
1859                 ha->flash_data_off = ~0;
1860                 ha->nvram_conf_off = ~0;
1861                 ha->nvram_data_off = ~0;
1862                 ha->isp_ops = &qla2100_isp_ops;
1863         } else if (IS_QLA23XX(ha)) {
1864                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1865                 req_length = REQUEST_ENTRY_CNT_2200;
1866                 rsp_length = RESPONSE_ENTRY_CNT_2300;
1867                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
1868                 ha->gid_list_info_size = 6;
1869                 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1870                         ha->optrom_size = OPTROM_SIZE_2322;
1871                 ha->flash_conf_off = ~0;
1872                 ha->flash_data_off = ~0;
1873                 ha->nvram_conf_off = ~0;
1874                 ha->nvram_data_off = ~0;
1875                 ha->isp_ops = &qla2300_isp_ops;
1876         } else if (IS_QLA24XX_TYPE(ha)) {
1877                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1878                 req_length = REQUEST_ENTRY_CNT_24XX;
1879                 rsp_length = RESPONSE_ENTRY_CNT_2300;
1880                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
1881                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1882                 ha->gid_list_info_size = 8;
1883                 ha->optrom_size = OPTROM_SIZE_24XX;
1884                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA24XX;
1885                 ha->isp_ops = &qla24xx_isp_ops;
1886                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
1887                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
1888                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
1889                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
1890         } else if (IS_QLA25XX(ha)) {
1891                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1892                 req_length = REQUEST_ENTRY_CNT_24XX;
1893                 rsp_length = RESPONSE_ENTRY_CNT_2300;
1894                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
1895                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1896                 ha->gid_list_info_size = 8;
1897                 ha->optrom_size = OPTROM_SIZE_25XX;
1898                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
1899                 ha->isp_ops = &qla25xx_isp_ops;
1900                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
1901                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
1902                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
1903                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
1904         } else if (IS_QLA81XX(ha)) {
1905                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1906                 req_length = REQUEST_ENTRY_CNT_24XX;
1907                 rsp_length = RESPONSE_ENTRY_CNT_2300;
1908                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
1909                 ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
1910                 ha->gid_list_info_size = 8;
1911                 ha->optrom_size = OPTROM_SIZE_81XX;
1912                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
1913                 ha->isp_ops = &qla81xx_isp_ops;
1914                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
1915                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
1916                 ha->nvram_conf_off = ~0;
1917                 ha->nvram_data_off = ~0;
1918         }
1919
1920         mutex_init(&ha->vport_lock);
1921         init_completion(&ha->mbx_cmd_comp);
1922         complete(&ha->mbx_cmd_comp);
1923         init_completion(&ha->mbx_intr_comp);
1924
1925         set_bit(0, (unsigned long *) ha->vp_idx_map);
1926
1927         qla2x00_config_dma_addressing(ha);
1928         ret = qla2x00_mem_alloc(ha, req_length, rsp_length, &req, &rsp);
1929         if (!ret) {
1930                 qla_printk(KERN_WARNING, ha,
1931                     "[ERROR] Failed to allocate memory for adapter\n");
1932
1933                 goto probe_hw_failed;
1934         }
1935
1936         req->max_q_depth = MAX_Q_DEPTH;
1937         if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
1938                 req->max_q_depth = ql2xmaxqdepth;
1939
1940
1941         base_vha = qla2x00_create_host(sht, ha);
1942         if (!base_vha) {
1943                 qla_printk(KERN_WARNING, ha,
1944                     "[ERROR] Failed to allocate memory for scsi_host\n");
1945
1946                 ret = -ENOMEM;
1947                 qla2x00_mem_free(ha);
1948                 qla2x00_free_req_que(ha, req);
1949                 qla2x00_free_rsp_que(ha, rsp);
1950                 goto probe_hw_failed;
1951         }
1952
1953         pci_set_drvdata(pdev, base_vha);
1954
1955         host = base_vha->host;
1956         base_vha->req = req;
1957         host->can_queue = req->length + 128;
1958         if (IS_QLA2XXX_MIDTYPE(ha))
1959                 base_vha->mgmt_svr_loop_id = 10 + base_vha->vp_idx;
1960         else
1961                 base_vha->mgmt_svr_loop_id = MANAGEMENT_SERVER +
1962                                                 base_vha->vp_idx;
1963         if (IS_QLA2100(ha))
1964                 host->sg_tablesize = 32;
1965         host->max_id = max_id;
1966         host->this_id = 255;
1967         host->cmd_per_lun = 3;
1968         host->unique_id = host->host_no;
1969         host->max_cmd_len = MAX_CMDSZ;
1970         host->max_channel = MAX_BUSES - 1;
1971         host->max_lun = MAX_LUNS;
1972         host->transportt = qla2xxx_transport_template;
1973
1974         /* Set up the irqs */
1975         ret = qla2x00_request_irqs(ha, rsp);
1976         if (ret)
1977                 goto probe_init_failed;
1978         /* Alloc arrays of request and response ring ptrs */
1979 que_init:
1980         if (!qla2x00_alloc_queues(ha)) {
1981                 qla_printk(KERN_WARNING, ha,
1982                 "[ERROR] Failed to allocate memory for queue"
1983                 " pointers\n");
1984                 goto probe_init_failed;
1985         }
1986         ha->rsp_q_map[0] = rsp;
1987         ha->req_q_map[0] = req;
1988         rsp->req = req;
1989         req->rsp = rsp;
1990         set_bit(0, ha->req_qid_map);
1991         set_bit(0, ha->rsp_qid_map);
1992         /* FWI2-capable only. */
1993         req->req_q_in = &ha->iobase->isp24.req_q_in;
1994         req->req_q_out = &ha->iobase->isp24.req_q_out;
1995         rsp->rsp_q_in = &ha->iobase->isp24.rsp_q_in;
1996         rsp->rsp_q_out = &ha->iobase->isp24.rsp_q_out;
1997         if (ha->mqenable) {
1998                 req->req_q_in = &ha->mqiobase->isp25mq.req_q_in;
1999                 req->req_q_out = &ha->mqiobase->isp25mq.req_q_out;
2000                 rsp->rsp_q_in = &ha->mqiobase->isp25mq.rsp_q_in;
2001                 rsp->rsp_q_out =  &ha->mqiobase->isp25mq.rsp_q_out;
2002         }
2003
2004         if (qla2x00_initialize_adapter(base_vha)) {
2005                 qla_printk(KERN_WARNING, ha,
2006                     "Failed to initialize adapter\n");
2007
2008                 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
2009                     "Adapter flags %x.\n",
2010                     base_vha->host_no, base_vha->device_flags));
2011
2012                 ret = -ENODEV;
2013                 goto probe_failed;
2014         }
2015
2016         if (ha->mqenable) {
2017                 if (qla25xx_setup_mode(base_vha)) {
2018                         qla_printk(KERN_WARNING, ha,
2019                                 "Can't create queues, falling back to single"
2020                                 " queue mode\n");
2021                         goto que_init;
2022                 }
2023         }
2024
2025         if (ha->flags.running_gold_fw)
2026                 goto skip_dpc;
2027
2028         /*
2029          * Startup the kernel thread for this host adapter
2030          */
2031         ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
2032                         "%s_dpc", base_vha->host_str);
2033         if (IS_ERR(ha->dpc_thread)) {
2034                 qla_printk(KERN_WARNING, ha,
2035                     "Unable to start DPC thread!\n");
2036                 ret = PTR_ERR(ha->dpc_thread);
2037                 goto probe_failed;
2038         }
2039
2040 skip_dpc:
2041         list_add_tail(&base_vha->list, &ha->vp_list);
2042         base_vha->host->irq = ha->pdev->irq;
2043
2044         /* Initialized the timer */
2045         qla2x00_start_timer(base_vha, qla2x00_timer, WATCH_INTERVAL);
2046
2047         DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
2048             base_vha->host_no, ha));
2049
2050         ret = scsi_add_host(host, &pdev->dev);
2051         if (ret)
2052                 goto probe_failed;
2053
2054         base_vha->flags.init_done = 1;
2055         base_vha->flags.online = 1;
2056
2057         ha->isp_ops->enable_intrs(ha);
2058
2059         scsi_scan_host(host);
2060
2061         qla2x00_alloc_sysfs_attr(base_vha);
2062
2063         qla2x00_init_host_attr(base_vha);
2064
2065         qla2x00_dfs_setup(base_vha);
2066
2067         qla_printk(KERN_INFO, ha, "\n"
2068             " QLogic Fibre Channel HBA Driver: %s\n"
2069             "  QLogic %s - %s\n"
2070             "  ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
2071             qla2x00_version_str, ha->model_number,
2072             ha->model_desc ? ha->model_desc : "", pdev->device,
2073             ha->isp_ops->pci_info_str(base_vha, pci_info), pci_name(pdev),
2074             ha->flags.enable_64bit_addressing ? '+' : '-', base_vha->host_no,
2075             ha->isp_ops->fw_version_str(base_vha, fw_str));
2076
2077         return 0;
2078
2079 probe_init_failed:
2080         qla2x00_free_req_que(ha, req);
2081         qla2x00_free_rsp_que(ha, rsp);
2082         ha->max_req_queues = ha->max_rsp_queues = 0;
2083
2084 probe_failed:
2085         if (base_vha->timer_active)
2086                 qla2x00_stop_timer(base_vha);
2087         base_vha->flags.online = 0;
2088         if (ha->dpc_thread) {
2089                 struct task_struct *t = ha->dpc_thread;
2090
2091                 ha->dpc_thread = NULL;
2092                 kthread_stop(t);
2093         }
2094
2095         qla2x00_free_device(base_vha);
2096
2097         scsi_host_put(base_vha->host);
2098
2099 probe_hw_failed:
2100         if (ha->iobase)
2101                 iounmap(ha->iobase);
2102
2103         pci_release_selected_regions(ha->pdev, ha->bars);
2104         kfree(ha);
2105         ha = NULL;
2106
2107 probe_out:
2108         pci_disable_device(pdev);
2109         return ret;
2110 }
2111
2112 static void
2113 qla2x00_remove_one(struct pci_dev *pdev)
2114 {
2115         scsi_qla_host_t *base_vha, *vha, *temp;
2116         struct qla_hw_data  *ha;
2117
2118         base_vha = pci_get_drvdata(pdev);
2119         ha = base_vha->hw;
2120
2121         list_for_each_entry_safe(vha, temp, &ha->vp_list, list) {
2122                 if (vha && vha->fc_vport)
2123                         fc_vport_terminate(vha->fc_vport);
2124         }
2125
2126         set_bit(UNLOADING, &base_vha->dpc_flags);
2127
2128         qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
2129
2130         qla2x00_dfs_remove(base_vha);
2131
2132         qla84xx_put_chip(base_vha);
2133
2134         /* Disable timer */
2135         if (base_vha->timer_active)
2136                 qla2x00_stop_timer(base_vha);
2137
2138         base_vha->flags.online = 0;
2139
2140         /* Flush the work queue and remove it */
2141         if (ha->wq) {
2142                 flush_workqueue(ha->wq);
2143                 destroy_workqueue(ha->wq);
2144                 ha->wq = NULL;
2145         }
2146
2147         /* Kill the kernel thread for this host */
2148         if (ha->dpc_thread) {
2149                 struct task_struct *t = ha->dpc_thread;
2150
2151                 /*
2152                  * qla2xxx_wake_dpc checks for ->dpc_thread
2153                  * so we need to zero it out.
2154                  */
2155                 ha->dpc_thread = NULL;
2156                 kthread_stop(t);
2157         }
2158
2159         qla2x00_free_sysfs_attr(base_vha);
2160
2161         fc_remove_host(base_vha->host);
2162
2163         scsi_remove_host(base_vha->host);
2164
2165         qla2x00_free_device(base_vha);
2166
2167         scsi_host_put(base_vha->host);
2168
2169         if (ha->iobase)
2170                 iounmap(ha->iobase);
2171
2172         if (ha->mqiobase)
2173                 iounmap(ha->mqiobase);
2174
2175         pci_release_selected_regions(ha->pdev, ha->bars);
2176         kfree(ha);
2177         ha = NULL;
2178
2179         pci_disable_device(pdev);
2180         pci_set_drvdata(pdev, NULL);
2181 }
2182
2183 static void
2184 qla2x00_free_device(scsi_qla_host_t *vha)
2185 {
2186         struct qla_hw_data *ha = vha->hw;
2187
2188         qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
2189
2190         /* Disable timer */
2191         if (vha->timer_active)
2192                 qla2x00_stop_timer(vha);
2193
2194         /* Kill the kernel thread for this host */
2195         if (ha->dpc_thread) {
2196                 struct task_struct *t = ha->dpc_thread;
2197
2198                 /*
2199                  * qla2xxx_wake_dpc checks for ->dpc_thread
2200                  * so we need to zero it out.
2201                  */
2202                 ha->dpc_thread = NULL;
2203                 kthread_stop(t);
2204         }
2205
2206         qla25xx_delete_queues(vha);
2207
2208         if (ha->flags.fce_enabled)
2209                 qla2x00_disable_fce_trace(vha, NULL, NULL);
2210
2211         if (ha->eft)
2212                 qla2x00_disable_eft_trace(vha);
2213
2214         /* Stop currently executing firmware. */
2215         qla2x00_try_to_stop_firmware(vha);
2216
2217         vha->flags.online = 0;
2218
2219         /* turn-off interrupts on the card */
2220         if (ha->interrupts_on)
2221                 ha->isp_ops->disable_intrs(ha);
2222
2223         qla2x00_free_irqs(vha);
2224
2225         qla2x00_mem_free(ha);
2226
2227         qla2x00_free_queues(ha);
2228 }
2229
2230 static inline void
2231 qla2x00_schedule_rport_del(struct scsi_qla_host *vha, fc_port_t *fcport,
2232     int defer)
2233 {
2234         struct fc_rport *rport;
2235         scsi_qla_host_t *base_vha;
2236
2237         if (!fcport->rport)
2238                 return;
2239
2240         rport = fcport->rport;
2241         if (defer) {
2242                 base_vha = pci_get_drvdata(vha->hw->pdev);
2243                 spin_lock_irq(vha->host->host_lock);
2244                 fcport->drport = rport;
2245                 spin_unlock_irq(vha->host->host_lock);
2246                 set_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
2247                 qla2xxx_wake_dpc(base_vha);
2248         } else
2249                 fc_remote_port_delete(rport);
2250 }
2251
2252 /*
2253  * qla2x00_mark_device_lost Updates fcport state when device goes offline.
2254  *
2255  * Input: ha = adapter block pointer.  fcport = port structure pointer.
2256  *
2257  * Return: None.
2258  *
2259  * Context:
2260  */
2261 void qla2x00_mark_device_lost(scsi_qla_host_t *vha, fc_port_t *fcport,
2262     int do_login, int defer)
2263 {
2264         if (atomic_read(&fcport->state) == FCS_ONLINE &&
2265             vha->vp_idx == fcport->vp_idx) {
2266                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2267                 qla2x00_schedule_rport_del(vha, fcport, defer);
2268         }
2269         /*
2270          * We may need to retry the login, so don't change the state of the
2271          * port but do the retries.
2272          */
2273         if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
2274                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2275
2276         if (!do_login)
2277                 return;
2278
2279         if (fcport->login_retry == 0) {
2280                 fcport->login_retry = vha->hw->login_retry_count;
2281                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2282
2283                 DEBUG(printk("scsi(%ld): Port login retry: "
2284                     "%02x%02x%02x%02x%02x%02x%02x%02x, "
2285                     "id = 0x%04x retry cnt=%d\n",
2286                     vha->host_no,
2287                     fcport->port_name[0],
2288                     fcport->port_name[1],
2289                     fcport->port_name[2],
2290                     fcport->port_name[3],
2291                     fcport->port_name[4],
2292                     fcport->port_name[5],
2293                     fcport->port_name[6],
2294                     fcport->port_name[7],
2295                     fcport->loop_id,
2296                     fcport->login_retry));
2297         }
2298 }
2299
2300 /*
2301  * qla2x00_mark_all_devices_lost
2302  *      Updates fcport state when device goes offline.
2303  *
2304  * Input:
2305  *      ha = adapter block pointer.
2306  *      fcport = port structure pointer.
2307  *
2308  * Return:
2309  *      None.
2310  *
2311  * Context:
2312  */
2313 void
2314 qla2x00_mark_all_devices_lost(scsi_qla_host_t *vha, int defer)
2315 {
2316         fc_port_t *fcport;
2317
2318         list_for_each_entry(fcport, &vha->vp_fcports, list) {
2319                 if (vha->vp_idx != 0 && vha->vp_idx != fcport->vp_idx)
2320                         continue;
2321
2322                 /*
2323                  * No point in marking the device as lost, if the device is
2324                  * already DEAD.
2325                  */
2326                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
2327                         continue;
2328                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
2329                         if (defer)
2330                                 qla2x00_schedule_rport_del(vha, fcport, defer);
2331                         else if (vha->vp_idx == fcport->vp_idx)
2332                                 qla2x00_schedule_rport_del(vha, fcport, defer);
2333                 }
2334                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2335         }
2336 }
2337
2338 /*
2339 * qla2x00_mem_alloc
2340 *      Allocates adapter memory.
2341 *
2342 * Returns:
2343 *      0  = success.
2344 *      !0  = failure.
2345 */
2346 static int
2347 qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
2348         struct req_que **req, struct rsp_que **rsp)
2349 {
2350         char    name[16];
2351
2352         ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
2353                 &ha->init_cb_dma, GFP_KERNEL);
2354         if (!ha->init_cb)
2355                 goto fail;
2356
2357         ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
2358                 &ha->gid_list_dma, GFP_KERNEL);
2359         if (!ha->gid_list)
2360                 goto fail_free_init_cb;
2361
2362         ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
2363         if (!ha->srb_mempool)
2364                 goto fail_free_gid_list;
2365
2366         /* Get memory for cached NVRAM */
2367         ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
2368         if (!ha->nvram)
2369                 goto fail_free_srb_mempool;
2370
2371         snprintf(name, sizeof(name), "%s_%d", QLA2XXX_DRIVER_NAME,
2372                 ha->pdev->device);
2373         ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2374                 DMA_POOL_SIZE, 8, 0);
2375         if (!ha->s_dma_pool)
2376                 goto fail_free_nvram;
2377
2378         /* Allocate memory for SNS commands */
2379         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2380         /* Get consistent memory allocated for SNS commands */
2381                 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
2382                 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
2383                 if (!ha->sns_cmd)
2384                         goto fail_dma_pool;
2385         } else {
2386         /* Get consistent memory allocated for MS IOCB */
2387                 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2388                         &ha->ms_iocb_dma);
2389                 if (!ha->ms_iocb)
2390                         goto fail_dma_pool;
2391         /* Get consistent memory allocated for CT SNS commands */
2392                 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2393                         sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
2394                 if (!ha->ct_sns)
2395                         goto fail_free_ms_iocb;
2396         }
2397
2398         /* Allocate memory for request ring */
2399         *req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
2400         if (!*req) {
2401                 DEBUG(printk("Unable to allocate memory for req\n"));
2402                 goto fail_req;
2403         }
2404         (*req)->length = req_len;
2405         (*req)->ring = dma_alloc_coherent(&ha->pdev->dev,
2406                 ((*req)->length + 1) * sizeof(request_t),
2407                 &(*req)->dma, GFP_KERNEL);
2408         if (!(*req)->ring) {
2409                 DEBUG(printk("Unable to allocate memory for req_ring\n"));
2410                 goto fail_req_ring;
2411         }
2412         /* Allocate memory for response ring */
2413         *rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
2414         if (!*rsp) {
2415                 qla_printk(KERN_WARNING, ha,
2416                         "Unable to allocate memory for rsp\n");
2417                 goto fail_rsp;
2418         }
2419         (*rsp)->hw = ha;
2420         (*rsp)->length = rsp_len;
2421         (*rsp)->ring = dma_alloc_coherent(&ha->pdev->dev,
2422                 ((*rsp)->length + 1) * sizeof(response_t),
2423                 &(*rsp)->dma, GFP_KERNEL);
2424         if (!(*rsp)->ring) {
2425                 qla_printk(KERN_WARNING, ha,
2426                         "Unable to allocate memory for rsp_ring\n");
2427                 goto fail_rsp_ring;
2428         }
2429         (*req)->rsp = *rsp;
2430         (*rsp)->req = *req;
2431         /* Allocate memory for NVRAM data for vports */
2432         if (ha->nvram_npiv_size) {
2433                 ha->npiv_info = kzalloc(sizeof(struct qla_npiv_entry) *
2434                                         ha->nvram_npiv_size, GFP_KERNEL);
2435                 if (!ha->npiv_info) {
2436                         qla_printk(KERN_WARNING, ha,
2437                                 "Unable to allocate memory for npiv info\n");
2438                         goto fail_npiv_info;
2439                 }
2440         } else
2441                 ha->npiv_info = NULL;
2442
2443         /* Get consistent memory allocated for EX-INIT-CB. */
2444         if (IS_QLA81XX(ha)) {
2445                 ha->ex_init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2446                     &ha->ex_init_cb_dma);
2447                 if (!ha->ex_init_cb)
2448                         goto fail_ex_init_cb;
2449         }
2450
2451         INIT_LIST_HEAD(&ha->vp_list);
2452         return 1;
2453
2454 fail_ex_init_cb:
2455         kfree(ha->npiv_info);
2456 fail_npiv_info:
2457         dma_free_coherent(&ha->pdev->dev, ((*rsp)->length + 1) *
2458                 sizeof(response_t), (*rsp)->ring, (*rsp)->dma);
2459         (*rsp)->ring = NULL;
2460         (*rsp)->dma = 0;
2461 fail_rsp_ring:
2462         kfree(*rsp);
2463 fail_rsp:
2464         dma_free_coherent(&ha->pdev->dev, ((*req)->length + 1) *
2465                 sizeof(request_t), (*req)->ring, (*req)->dma);
2466         (*req)->ring = NULL;
2467         (*req)->dma = 0;
2468 fail_req_ring:
2469         kfree(*req);
2470 fail_req:
2471         dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2472                 ha->ct_sns, ha->ct_sns_dma);
2473         ha->ct_sns = NULL;
2474         ha->ct_sns_dma = 0;
2475 fail_free_ms_iocb:
2476         dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2477         ha->ms_iocb = NULL;
2478         ha->ms_iocb_dma = 0;
2479 fail_dma_pool:
2480         dma_pool_destroy(ha->s_dma_pool);
2481         ha->s_dma_pool = NULL;
2482 fail_free_nvram:
2483         kfree(ha->nvram);
2484         ha->nvram = NULL;
2485 fail_free_srb_mempool:
2486         mempool_destroy(ha->srb_mempool);
2487         ha->srb_mempool = NULL;
2488 fail_free_gid_list:
2489         dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2490         ha->gid_list_dma);
2491         ha->gid_list = NULL;
2492         ha->gid_list_dma = 0;
2493 fail_free_init_cb:
2494         dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
2495         ha->init_cb_dma);
2496         ha->init_cb = NULL;
2497         ha->init_cb_dma = 0;
2498 fail:
2499         DEBUG(printk("%s: Memory allocation failure\n", __func__));
2500         return -ENOMEM;
2501 }
2502
2503 /*
2504 * qla2x00_mem_free
2505 *      Frees all adapter allocated memory.
2506 *
2507 * Input:
2508 *      ha = adapter block pointer.
2509 */
2510 static void
2511 qla2x00_mem_free(struct qla_hw_data *ha)
2512 {
2513         if (ha->srb_mempool)
2514                 mempool_destroy(ha->srb_mempool);
2515
2516         if (ha->fce)
2517                 dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
2518                 ha->fce_dma);
2519
2520         if (ha->fw_dump) {
2521                 if (ha->eft)
2522                         dma_free_coherent(&ha->pdev->dev,
2523                         ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2524                 vfree(ha->fw_dump);
2525         }
2526
2527         if (ha->dcbx_tlv)
2528                 dma_free_coherent(&ha->pdev->dev, DCBX_TLV_DATA_SIZE,
2529                     ha->dcbx_tlv, ha->dcbx_tlv_dma);
2530
2531         if (ha->xgmac_data)
2532                 dma_free_coherent(&ha->pdev->dev, XGMAC_DATA_SIZE,
2533                     ha->xgmac_data, ha->xgmac_data_dma);
2534
2535         if (ha->sns_cmd)
2536                 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2537                 ha->sns_cmd, ha->sns_cmd_dma);
2538
2539         if (ha->ct_sns)
2540                 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2541                 ha->ct_sns, ha->ct_sns_dma);
2542
2543         if (ha->sfp_data)
2544                 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2545
2546         if (ha->edc_data)
2547                 dma_pool_free(ha->s_dma_pool, ha->edc_data, ha->edc_data_dma);
2548
2549         if (ha->ms_iocb)
2550                 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2551
2552         if (ha->ex_init_cb)
2553                 dma_pool_free(ha->s_dma_pool, ha->ex_init_cb, ha->ex_init_cb_dma);
2554
2555         if (ha->s_dma_pool)
2556                 dma_pool_destroy(ha->s_dma_pool);
2557
2558         if (ha->gid_list)
2559                 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2560                 ha->gid_list_dma);
2561
2562         if (ha->init_cb)
2563                 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
2564                 ha->init_cb, ha->init_cb_dma);
2565         vfree(ha->optrom_buffer);
2566         kfree(ha->nvram);
2567         kfree(ha->npiv_info);
2568
2569         ha->srb_mempool = NULL;
2570         ha->eft = NULL;
2571         ha->eft_dma = 0;
2572         ha->sns_cmd = NULL;
2573         ha->sns_cmd_dma = 0;
2574         ha->ct_sns = NULL;
2575         ha->ct_sns_dma = 0;
2576         ha->ms_iocb = NULL;
2577         ha->ms_iocb_dma = 0;
2578         ha->init_cb = NULL;
2579         ha->init_cb_dma = 0;
2580         ha->ex_init_cb = NULL;
2581         ha->ex_init_cb_dma = 0;
2582
2583         ha->s_dma_pool = NULL;
2584
2585         ha->gid_list = NULL;
2586         ha->gid_list_dma = 0;
2587
2588         ha->fw_dump = NULL;
2589         ha->fw_dumped = 0;
2590         ha->fw_dump_reading = 0;
2591 }
2592
2593 struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht,
2594                                                 struct qla_hw_data *ha)
2595 {
2596         struct Scsi_Host *host;
2597         struct scsi_qla_host *vha = NULL;
2598
2599         host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
2600         if (host == NULL) {
2601                 printk(KERN_WARNING
2602                 "qla2xxx: Couldn't allocate host from scsi layer!\n");
2603                 goto fail;
2604         }
2605
2606         /* Clear our data area */
2607         vha = shost_priv(host);
2608         memset(vha, 0, sizeof(scsi_qla_host_t));
2609
2610         vha->host = host;
2611         vha->host_no = host->host_no;
2612         vha->hw = ha;
2613
2614         INIT_LIST_HEAD(&vha->vp_fcports);
2615         INIT_LIST_HEAD(&vha->work_list);
2616         INIT_LIST_HEAD(&vha->list);
2617
2618         spin_lock_init(&vha->work_lock);
2619
2620         sprintf(vha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, vha->host_no);
2621         return vha;
2622
2623 fail:
2624         return vha;
2625 }
2626
2627 static struct qla_work_evt *
2628 qla2x00_alloc_work(struct scsi_qla_host *vha, enum qla_work_type type)
2629 {
2630         struct qla_work_evt *e;
2631
2632         e = kzalloc(sizeof(struct qla_work_evt), GFP_ATOMIC);
2633         if (!e)
2634                 return NULL;
2635
2636         INIT_LIST_HEAD(&e->list);
2637         e->type = type;
2638         e->flags = QLA_EVT_FLAG_FREE;
2639         return e;
2640 }
2641
2642 static int
2643 qla2x00_post_work(struct scsi_qla_host *vha, struct qla_work_evt *e)
2644 {
2645         unsigned long flags;
2646
2647         spin_lock_irqsave(&vha->work_lock, flags);
2648         list_add_tail(&e->list, &vha->work_list);
2649         spin_unlock_irqrestore(&vha->work_lock, flags);
2650         qla2xxx_wake_dpc(vha);
2651
2652         return QLA_SUCCESS;
2653 }
2654
2655 int
2656 qla2x00_post_aen_work(struct scsi_qla_host *vha, enum fc_host_event_code code,
2657     u32 data)
2658 {
2659         struct qla_work_evt *e;
2660
2661         e = qla2x00_alloc_work(vha, QLA_EVT_AEN);
2662         if (!e)
2663                 return QLA_FUNCTION_FAILED;
2664
2665         e->u.aen.code = code;
2666         e->u.aen.data = data;
2667         return qla2x00_post_work(vha, e);
2668 }
2669
2670 int
2671 qla2x00_post_idc_ack_work(struct scsi_qla_host *vha, uint16_t *mb)
2672 {
2673         struct qla_work_evt *e;
2674
2675         e = qla2x00_alloc_work(vha, QLA_EVT_IDC_ACK);
2676         if (!e)
2677                 return QLA_FUNCTION_FAILED;
2678
2679         memcpy(e->u.idc_ack.mb, mb, QLA_IDC_ACK_REGS * sizeof(uint16_t));
2680         return qla2x00_post_work(vha, e);
2681 }
2682
2683 #define qla2x00_post_async_work(name, type)     \
2684 int qla2x00_post_async_##name##_work(           \
2685     struct scsi_qla_host *vha,                  \
2686     fc_port_t *fcport, uint16_t *data)          \
2687 {                                               \
2688         struct qla_work_evt *e;                 \
2689                                                 \
2690         e = qla2x00_alloc_work(vha, type);      \
2691         if (!e)                                 \
2692                 return QLA_FUNCTION_FAILED;     \
2693                                                 \
2694         e->u.logio.fcport = fcport;             \
2695         if (data) {                             \
2696                 e->u.logio.data[0] = data[0];   \
2697                 e->u.logio.data[1] = data[1];   \
2698         }                                       \
2699         return qla2x00_post_work(vha, e);       \
2700 }
2701
2702 qla2x00_post_async_work(login, QLA_EVT_ASYNC_LOGIN);
2703 qla2x00_post_async_work(login_done, QLA_EVT_ASYNC_LOGIN_DONE);
2704 qla2x00_post_async_work(logout, QLA_EVT_ASYNC_LOGOUT);
2705 qla2x00_post_async_work(logout_done, QLA_EVT_ASYNC_LOGOUT_DONE);
2706
2707 int
2708 qla2x00_post_uevent_work(struct scsi_qla_host *vha, u32 code)
2709 {
2710         struct qla_work_evt *e;
2711
2712         e = qla2x00_alloc_work(vha, QLA_EVT_UEVENT);
2713         if (!e)
2714                 return QLA_FUNCTION_FAILED;
2715
2716         e->u.uevent.code = code;
2717         return qla2x00_post_work(vha, e);
2718 }
2719
2720 static void
2721 qla2x00_uevent_emit(struct scsi_qla_host *vha, u32 code)
2722 {
2723         char event_string[40];
2724         char *envp[] = { event_string, NULL };
2725
2726         switch (code) {
2727         case QLA_UEVENT_CODE_FW_DUMP:
2728                 snprintf(event_string, sizeof(event_string), "FW_DUMP=%ld",
2729                     vha->host_no);
2730                 break;
2731         default:
2732                 /* do nothing */
2733                 break;
2734         }
2735         kobject_uevent_env(&vha->hw->pdev->dev.kobj, KOBJ_CHANGE, envp);
2736 }
2737
2738 void
2739 qla2x00_do_work(struct scsi_qla_host *vha)
2740 {
2741         struct qla_work_evt *e, *tmp;
2742         unsigned long flags;
2743         LIST_HEAD(work);
2744
2745         spin_lock_irqsave(&vha->work_lock, flags);
2746         list_splice_init(&vha->work_list, &work);
2747         spin_unlock_irqrestore(&vha->work_lock, flags);
2748
2749         list_for_each_entry_safe(e, tmp, &work, list) {
2750                 list_del_init(&e->list);
2751
2752                 switch (e->type) {
2753                 case QLA_EVT_AEN:
2754                         fc_host_post_event(vha->host, fc_get_event_number(),
2755                             e->u.aen.code, e->u.aen.data);
2756                         break;
2757                 case QLA_EVT_IDC_ACK:
2758                         qla81xx_idc_ack(vha, e->u.idc_ack.mb);
2759                         break;
2760                 case QLA_EVT_ASYNC_LOGIN:
2761                         qla2x00_async_login(vha, e->u.logio.fcport,
2762                             e->u.logio.data);
2763                         break;
2764                 case QLA_EVT_ASYNC_LOGIN_DONE:
2765                         qla2x00_async_login_done(vha, e->u.logio.fcport,
2766                             e->u.logio.data);
2767                         break;
2768                 case QLA_EVT_ASYNC_LOGOUT:
2769                         qla2x00_async_logout(vha, e->u.logio.fcport);
2770                         break;
2771                 case QLA_EVT_ASYNC_LOGOUT_DONE:
2772                         qla2x00_async_logout_done(vha, e->u.logio.fcport,
2773                             e->u.logio.data);
2774                         break;
2775                 case QLA_EVT_UEVENT:
2776                         qla2x00_uevent_emit(vha, e->u.uevent.code);
2777                         break;
2778                 }
2779                 if (e->flags & QLA_EVT_FLAG_FREE)
2780                         kfree(e);
2781         }
2782 }
2783
2784 /* Relogins all the fcports of a vport
2785  * Context: dpc thread
2786  */
2787 void qla2x00_relogin(struct scsi_qla_host *vha)
2788 {
2789         fc_port_t       *fcport;
2790         int status;
2791         uint16_t        next_loopid = 0;
2792         struct qla_hw_data *ha = vha->hw;
2793         uint16_t data[2];
2794
2795         list_for_each_entry(fcport, &vha->vp_fcports, list) {
2796         /*
2797          * If the port is not ONLINE then try to login
2798          * to it if we haven't run out of retries.
2799          */
2800                 if (atomic_read(&fcport->state) !=
2801                         FCS_ONLINE && fcport->login_retry) {
2802
2803                         fcport->login_retry--;
2804                         if (fcport->flags & FCF_FABRIC_DEVICE) {
2805                                 if (fcport->flags & FCF_FCP2_DEVICE)
2806                                         ha->isp_ops->fabric_logout(vha,
2807                                                         fcport->loop_id,
2808                                                         fcport->d_id.b.domain,
2809                                                         fcport->d_id.b.area,
2810                                                         fcport->d_id.b.al_pa);
2811
2812                                 if (IS_ALOGIO_CAPABLE(ha)) {
2813                                         data[0] = 0;
2814                                         data[1] = QLA_LOGIO_LOGIN_RETRIED;
2815                                         status = qla2x00_post_async_login_work(
2816                                             vha, fcport, data);
2817                                         if (status == QLA_SUCCESS)
2818                                                 continue;
2819                                         /* Attempt a retry. */
2820                                         status = 1;
2821                                 } else
2822                                         status = qla2x00_fabric_login(vha,
2823                                             fcport, &next_loopid);
2824                         } else
2825                                 status = qla2x00_local_device_login(vha,
2826                                                                 fcport);
2827
2828                         if (status == QLA_SUCCESS) {
2829                                 fcport->old_loop_id = fcport->loop_id;
2830
2831                                 DEBUG(printk("scsi(%ld): port login OK: logged "
2832                                 "in ID 0x%x\n", vha->host_no, fcport->loop_id));
2833
2834                                 qla2x00_update_fcport(vha, fcport);
2835
2836                         } else if (status == 1) {
2837                                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2838                                 /* retry the login again */
2839                                 DEBUG(printk("scsi(%ld): Retrying"
2840                                 " %d login again loop_id 0x%x\n",
2841                                 vha->host_no, fcport->login_retry,
2842                                                 fcport->loop_id));
2843                         } else {
2844                                 fcport->login_retry = 0;
2845                         }
2846
2847                         if (fcport->login_retry == 0 && status != QLA_SUCCESS)
2848                                 fcport->loop_id = FC_NO_LOOP_ID;
2849                 }
2850                 if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
2851                         break;
2852         }
2853 }
2854
2855 /**************************************************************************
2856 * qla2x00_do_dpc
2857 *   This kernel thread is a task that is schedule by the interrupt handler
2858 *   to perform the background processing for interrupts.
2859 *
2860 * Notes:
2861 * This task always run in the context of a kernel thread.  It
2862 * is kick-off by the driver's detect code and starts up
2863 * up one per adapter. It immediately goes to sleep and waits for
2864 * some fibre event.  When either the interrupt handler or
2865 * the timer routine detects a event it will one of the task
2866 * bits then wake us up.
2867 **************************************************************************/
2868 static int
2869 qla2x00_do_dpc(void *data)
2870 {
2871         int             rval;
2872         scsi_qla_host_t *base_vha;
2873         struct qla_hw_data *ha;
2874
2875         ha = (struct qla_hw_data *)data;
2876         base_vha = pci_get_drvdata(ha->pdev);
2877
2878         set_user_nice(current, -20);
2879
2880         while (!kthread_should_stop()) {
2881                 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2882
2883                 set_current_state(TASK_INTERRUPTIBLE);
2884                 schedule();
2885                 __set_current_state(TASK_RUNNING);
2886
2887                 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2888
2889                 /* Initialization not yet finished. Don't do anything yet. */
2890                 if (!base_vha->flags.init_done)
2891                         continue;
2892
2893                 if (ha->flags.eeh_busy) {
2894                         DEBUG17(qla_printk(KERN_WARNING, ha,
2895                             "qla2x00_do_dpc: dpc_flags: %lx\n",
2896                             base_vha->dpc_flags));
2897                         continue;
2898                 }
2899
2900                 DEBUG3(printk("scsi(%ld): DPC handler\n", base_vha->host_no));
2901
2902                 ha->dpc_active = 1;
2903
2904                 if (ha->flags.mbox_busy) {
2905                         ha->dpc_active = 0;
2906                         continue;
2907                 }
2908
2909                 qla2x00_do_work(base_vha);
2910
2911                 if (test_and_clear_bit(ISP_ABORT_NEEDED,
2912                                                 &base_vha->dpc_flags)) {
2913
2914                         DEBUG(printk("scsi(%ld): dpc: sched "
2915                             "qla2x00_abort_isp ha = %p\n",
2916                             base_vha->host_no, ha));
2917                         if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2918                             &base_vha->dpc_flags))) {
2919
2920                                 if (qla2x00_abort_isp(base_vha)) {
2921                                         /* failed. retry later */
2922                                         set_bit(ISP_ABORT_NEEDED,
2923                                             &base_vha->dpc_flags);
2924                                 }
2925                                 clear_bit(ABORT_ISP_ACTIVE,
2926                                                 &base_vha->dpc_flags);
2927                         }
2928
2929                         DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2930                             base_vha->host_no));
2931                 }
2932
2933                 if (test_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags)) {
2934                         qla2x00_update_fcports(base_vha);
2935                         clear_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
2936                 }
2937
2938                 if (test_and_clear_bit(RESET_MARKER_NEEDED,
2939                                                         &base_vha->dpc_flags) &&
2940                     (!(test_and_set_bit(RESET_ACTIVE, &base_vha->dpc_flags)))) {
2941
2942                         DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2943                             base_vha->host_no));
2944
2945                         qla2x00_rst_aen(base_vha);
2946                         clear_bit(RESET_ACTIVE, &base_vha->dpc_flags);
2947                 }
2948
2949                 /* Retry each device up to login retry count */
2950                 if ((test_and_clear_bit(RELOGIN_NEEDED,
2951                                                 &base_vha->dpc_flags)) &&
2952                     !test_bit(LOOP_RESYNC_NEEDED, &base_vha->dpc_flags) &&
2953                     atomic_read(&base_vha->loop_state) != LOOP_DOWN) {
2954
2955                         DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2956                                         base_vha->host_no));
2957                         qla2x00_relogin(base_vha);
2958
2959                         DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2960                             base_vha->host_no));
2961                 }
2962
2963                 if (test_and_clear_bit(LOOP_RESYNC_NEEDED,
2964                                                         &base_vha->dpc_flags)) {
2965
2966                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2967                                 base_vha->host_no));
2968
2969                         if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2970                             &base_vha->dpc_flags))) {
2971
2972                                 rval = qla2x00_loop_resync(base_vha);
2973
2974                                 clear_bit(LOOP_RESYNC_ACTIVE,
2975                                                 &base_vha->dpc_flags);
2976                         }
2977
2978                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2979                             base_vha->host_no));
2980                 }
2981
2982                 if (test_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags) &&
2983                     atomic_read(&base_vha->loop_state) == LOOP_READY) {
2984                         clear_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags);
2985                         qla2xxx_flash_npiv_conf(base_vha);
2986                 }
2987
2988                 if (!ha->interrupts_on)
2989                         ha->isp_ops->enable_intrs(ha);
2990
2991                 if (test_and_clear_bit(BEACON_BLINK_NEEDED,
2992                                         &base_vha->dpc_flags))
2993                         ha->isp_ops->beacon_blink(base_vha);
2994
2995                 qla2x00_do_dpc_all_vps(base_vha);
2996
2997                 ha->dpc_active = 0;
2998         } /* End of while(1) */
2999
3000         DEBUG(printk("scsi(%ld): DPC handler exiting\n", base_vha->host_no));
3001
3002         /*
3003          * Make sure that nobody tries to wake us up again.
3004          */
3005         ha->dpc_active = 0;
3006
3007         /* Cleanup any residual CTX SRBs. */
3008         qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
3009
3010         return 0;
3011 }
3012
3013 void
3014 qla2xxx_wake_dpc(struct scsi_qla_host *vha)
3015 {
3016         struct qla_hw_data *ha = vha->hw;
3017         struct task_struct *t = ha->dpc_thread;
3018
3019         if (!test_bit(UNLOADING, &vha->dpc_flags) && t)
3020                 wake_up_process(t);
3021 }
3022
3023 /*
3024 *  qla2x00_rst_aen
3025 *      Processes asynchronous reset.
3026 *
3027 * Input:
3028 *      ha  = adapter block pointer.
3029 */
3030 static void
3031 qla2x00_rst_aen(scsi_qla_host_t *vha)
3032 {
3033         if (vha->flags.online && !vha->flags.reset_active &&
3034             !atomic_read(&vha->loop_down_timer) &&
3035             !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) {
3036                 do {
3037                         clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
3038
3039                         /*
3040                          * Issue marker command only when we are going to start
3041                          * the I/O.
3042                          */
3043                         vha->marker_needed = 1;
3044                 } while (!atomic_read(&vha->loop_down_timer) &&
3045                     (test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags)));
3046         }
3047 }
3048
3049 static void
3050 qla2x00_sp_free_dma(srb_t *sp)
3051 {
3052         struct scsi_cmnd *cmd = sp->cmd;
3053
3054         if (sp->flags & SRB_DMA_VALID) {
3055                 scsi_dma_unmap(cmd);
3056                 sp->flags &= ~SRB_DMA_VALID;
3057         }
3058         CMD_SP(cmd) = NULL;
3059 }
3060
3061 void
3062 qla2x00_sp_compl(struct qla_hw_data *ha, srb_t *sp)
3063 {
3064         struct scsi_cmnd *cmd = sp->cmd;
3065
3066         qla2x00_sp_free_dma(sp);
3067
3068         mempool_free(sp, ha->srb_mempool);
3069
3070         cmd->scsi_done(cmd);
3071 }
3072
3073 /**************************************************************************
3074 *   qla2x00_timer
3075 *
3076 * Description:
3077 *   One second timer
3078 *
3079 * Context: Interrupt
3080 ***************************************************************************/
3081 void
3082 qla2x00_timer(scsi_qla_host_t *vha)
3083 {
3084         unsigned long   cpu_flags = 0;
3085         fc_port_t       *fcport;
3086         int             start_dpc = 0;
3087         int             index;
3088         srb_t           *sp;
3089         int             t;
3090         uint16_t        w;
3091         struct qla_hw_data *ha = vha->hw;
3092         struct req_que *req;
3093
3094         /* Hardware read to raise pending EEH errors during mailbox waits. */
3095         if (!pci_channel_offline(ha->pdev))
3096                 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
3097         /*
3098          * Ports - Port down timer.
3099          *
3100          * Whenever, a port is in the LOST state we start decrementing its port
3101          * down timer every second until it reaches zero. Once  it reaches zero
3102          * the port it marked DEAD.
3103          */
3104         t = 0;
3105         list_for_each_entry(fcport, &vha->vp_fcports, list) {
3106                 if (fcport->port_type != FCT_TARGET)
3107                         continue;
3108
3109                 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
3110
3111                         if (atomic_read(&fcport->port_down_timer) == 0)
3112                                 continue;
3113
3114                         if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
3115                                 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
3116
3117                         DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
3118                             "%d remaining\n",
3119                             vha->host_no,
3120                             t, atomic_read(&fcport->port_down_timer)));
3121                 }
3122                 t++;
3123         } /* End of for fcport  */
3124
3125
3126         /* Loop down handler. */
3127         if (atomic_read(&vha->loop_down_timer) > 0 &&
3128             !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
3129                 && vha->flags.online) {
3130
3131                 if (atomic_read(&vha->loop_down_timer) ==
3132                     vha->loop_down_abort_time) {
3133
3134                         DEBUG(printk("scsi(%ld): Loop Down - aborting the "
3135                             "queues before time expire\n",
3136                             vha->host_no));
3137
3138                         if (!IS_QLA2100(ha) && vha->link_down_timeout)
3139                                 atomic_set(&vha->loop_state, LOOP_DEAD);
3140
3141                         /*
3142                          * Schedule an ISP abort to return any FCP2-device
3143                          * commands.
3144                          */
3145                         /* NPIV - scan physical port only */
3146                         if (!vha->vp_idx) {
3147                                 spin_lock_irqsave(&ha->hardware_lock,
3148                                     cpu_flags);
3149                                 req = ha->req_q_map[0];
3150                                 for (index = 1;
3151                                     index < MAX_OUTSTANDING_COMMANDS;
3152                                     index++) {
3153                                         fc_port_t *sfcp;
3154
3155                                         sp = req->outstanding_cmds[index];
3156                                         if (!sp)
3157                                                 continue;
3158                                         if (sp->ctx)
3159                                                 continue;
3160                                         sfcp = sp->fcport;
3161                                         if (!(sfcp->flags & FCF_FCP2_DEVICE))
3162                                                 continue;
3163
3164                                         set_bit(ISP_ABORT_NEEDED,
3165                                                         &vha->dpc_flags);
3166                                         break;
3167                                 }
3168                                 spin_unlock_irqrestore(&ha->hardware_lock,
3169                                                                 cpu_flags);
3170                         }
3171                         start_dpc++;
3172                 }
3173
3174                 /* if the loop has been down for 4 minutes, reinit adapter */
3175                 if (atomic_dec_and_test(&vha->loop_down_timer) != 0) {
3176                         if (!(vha->device_flags & DFLG_NO_CABLE)) {
3177                                 DEBUG(printk("scsi(%ld): Loop down - "
3178                                     "aborting ISP.\n",
3179                                     vha->host_no));
3180                                 qla_printk(KERN_WARNING, ha,
3181                                     "Loop down - aborting ISP.\n");
3182
3183                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3184                         }
3185                 }
3186                 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
3187                     vha->host_no,
3188                     atomic_read(&vha->loop_down_timer)));
3189         }
3190
3191         /* Check if beacon LED needs to be blinked */
3192         if (ha->beacon_blink_led == 1) {
3193                 set_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags);
3194                 start_dpc++;
3195         }
3196
3197         /* Process any deferred work. */
3198         if (!list_empty(&vha->work_list))
3199                 start_dpc++;
3200
3201         /* Schedule the DPC routine if needed */
3202         if ((test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
3203             test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) ||
3204             test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags) ||
3205             start_dpc ||
3206             test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) ||
3207             test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags) ||
3208             test_bit(VP_DPC_NEEDED, &vha->dpc_flags) ||
3209             test_bit(RELOGIN_NEEDED, &vha->dpc_flags)))
3210                 qla2xxx_wake_dpc(vha);
3211
3212         qla2x00_restart_timer(vha, WATCH_INTERVAL);
3213 }
3214
3215 /* Firmware interface routines. */
3216
3217 #define FW_BLOBS        7
3218 #define FW_ISP21XX      0
3219 #define FW_ISP22XX      1
3220 #define FW_ISP2300      2
3221 #define FW_ISP2322      3
3222 #define FW_ISP24XX      4
3223 #define FW_ISP25XX      5
3224 #define FW_ISP81XX      6
3225
3226 #define FW_FILE_ISP21XX "ql2100_fw.bin"
3227 #define FW_FILE_ISP22XX "ql2200_fw.bin"
3228 #define FW_FILE_ISP2300 "ql2300_fw.bin"
3229 #define FW_FILE_ISP2322 "ql2322_fw.bin"
3230 #define FW_FILE_ISP24XX "ql2400_fw.bin"
3231 #define FW_FILE_ISP25XX "ql2500_fw.bin"
3232 #define FW_FILE_ISP81XX "ql8100_fw.bin"
3233
3234 static DEFINE_MUTEX(qla_fw_lock);
3235
3236 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
3237         { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
3238         { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
3239         { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
3240         { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
3241         { .name = FW_FILE_ISP24XX, },
3242         { .name = FW_FILE_ISP25XX, },
3243         { .name = FW_FILE_ISP81XX, },
3244 };
3245
3246 struct fw_blob *
3247 qla2x00_request_firmware(scsi_qla_host_t *vha)
3248 {
3249         struct qla_hw_data *ha = vha->hw;
3250         struct fw_blob *blob;
3251
3252         blob = NULL;
3253         if (IS_QLA2100(ha)) {
3254                 blob = &qla_fw_blobs[FW_ISP21XX];
3255         } else if (IS_QLA2200(ha)) {
3256                 blob = &qla_fw_blobs[FW_ISP22XX];
3257         } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
3258                 blob = &qla_fw_blobs[FW_ISP2300];
3259         } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
3260                 blob = &qla_fw_blobs[FW_ISP2322];
3261         } else if (IS_QLA24XX_TYPE(ha)) {
3262                 blob = &qla_fw_blobs[FW_ISP24XX];
3263         } else if (IS_QLA25XX(ha)) {
3264                 blob = &qla_fw_blobs[FW_ISP25XX];
3265         } else if (IS_QLA81XX(ha)) {
3266                 blob = &qla_fw_blobs[FW_ISP81XX];
3267         }
3268
3269         mutex_lock(&qla_fw_lock);
3270         if (blob->fw)
3271                 goto out;
3272
3273         if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
3274                 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
3275                     "(%s).\n", vha->host_no, blob->name));
3276                 blob->fw = NULL;
3277                 blob = NULL;
3278                 goto out;
3279         }
3280
3281 out:
3282         mutex_unlock(&qla_fw_lock);
3283         return blob;
3284 }
3285
3286 static void
3287 qla2x00_release_firmware(void)
3288 {
3289         int idx;
3290
3291         mutex_lock(&qla_fw_lock);
3292         for (idx = 0; idx < FW_BLOBS; idx++)
3293                 if (qla_fw_blobs[idx].fw)
3294                         release_firmware(qla_fw_blobs[idx].fw);
3295         mutex_unlock(&qla_fw_lock);
3296 }
3297
3298 static pci_ers_result_t
3299 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
3300 {
3301         scsi_qla_host_t *vha = pci_get_drvdata(pdev);
3302         struct qla_hw_data *ha = vha->hw;
3303
3304         DEBUG2(qla_printk(KERN_WARNING, ha, "error_detected:state %x\n",
3305             state));
3306
3307         switch (state) {
3308         case pci_channel_io_normal:
3309                 ha->flags.eeh_busy = 0;
3310                 return PCI_ERS_RESULT_CAN_RECOVER;
3311         case pci_channel_io_frozen:
3312                 ha->flags.eeh_busy = 1;
3313                 pci_disable_device(pdev);
3314                 return PCI_ERS_RESULT_NEED_RESET;
3315         case pci_channel_io_perm_failure:
3316                 ha->flags.pci_channel_io_perm_failure = 1;
3317                 qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
3318                 return PCI_ERS_RESULT_DISCONNECT;
3319         }
3320         return PCI_ERS_RESULT_NEED_RESET;
3321 }
3322
3323 static pci_ers_result_t
3324 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
3325 {
3326         int risc_paused = 0;
3327         uint32_t stat;
3328         unsigned long flags;
3329         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3330         struct qla_hw_data *ha = base_vha->hw;
3331         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3332         struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
3333
3334         spin_lock_irqsave(&ha->hardware_lock, flags);
3335         if (IS_QLA2100(ha) || IS_QLA2200(ha)){
3336                 stat = RD_REG_DWORD(&reg->hccr);
3337                 if (stat & HCCR_RISC_PAUSE)
3338                         risc_paused = 1;
3339         } else if (IS_QLA23XX(ha)) {
3340                 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
3341                 if (stat & HSR_RISC_PAUSED)
3342                         risc_paused = 1;
3343         } else if (IS_FWI2_CAPABLE(ha)) {
3344                 stat = RD_REG_DWORD(&reg24->host_status);
3345                 if (stat & HSRX_RISC_PAUSED)
3346                         risc_paused = 1;
3347         }
3348         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3349
3350         if (risc_paused) {
3351                 qla_printk(KERN_INFO, ha, "RISC paused -- mmio_enabled, "
3352                     "Dumping firmware!\n");
3353                 ha->isp_ops->fw_dump(base_vha, 0);
3354
3355                 return PCI_ERS_RESULT_NEED_RESET;
3356         } else
3357                 return PCI_ERS_RESULT_RECOVERED;
3358 }
3359
3360 static pci_ers_result_t
3361 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
3362 {
3363         pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
3364         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3365         struct qla_hw_data *ha = base_vha->hw;
3366         int rc;
3367
3368         DEBUG17(qla_printk(KERN_WARNING, ha, "slot_reset\n"));
3369
3370         if (ha->mem_only)
3371                 rc = pci_enable_device_mem(pdev);
3372         else
3373                 rc = pci_enable_device(pdev);
3374
3375         if (rc) {
3376                 qla_printk(KERN_WARNING, ha,
3377                     "Can't re-enable PCI device after reset.\n");
3378                 return ret;
3379         }
3380
3381         if (ha->isp_ops->pci_config(base_vha))
3382                 return ret;
3383
3384 #ifdef QL_DEBUG_LEVEL_17
3385         {
3386                 uint8_t b;
3387                 uint32_t i;
3388
3389                 printk("slot_reset_1: ");
3390                 for (i = 0; i < 256; i++) {
3391                         pci_read_config_byte(ha->pdev, i, &b);
3392                         printk("%s%02x", (i%16) ? " " : "\n", b);
3393                 }
3394                 printk("\n");
3395         }
3396 #endif
3397         set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
3398         if (qla2x00_abort_isp(base_vha) == QLA_SUCCESS)
3399                 ret =  PCI_ERS_RESULT_RECOVERED;
3400         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
3401
3402         DEBUG17(qla_printk(KERN_WARNING, ha,
3403             "slot_reset-return:ret=%x\n", ret));
3404
3405         return ret;
3406 }
3407
3408 static void
3409 qla2xxx_pci_resume(struct pci_dev *pdev)
3410 {
3411         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3412         struct qla_hw_data *ha = base_vha->hw;
3413         int ret;
3414
3415         DEBUG17(qla_printk(KERN_WARNING, ha, "pci_resume\n"));
3416
3417         ret = qla2x00_wait_for_hba_online(base_vha);
3418         if (ret != QLA_SUCCESS) {
3419                 qla_printk(KERN_ERR, ha,
3420                     "the device failed to resume I/O "
3421                     "from slot/link_reset");
3422         }
3423
3424         ha->flags.eeh_busy = 0;
3425
3426         pci_cleanup_aer_uncorrect_error_status(pdev);
3427 }
3428
3429 static struct pci_error_handlers qla2xxx_err_handler = {
3430         .error_detected = qla2xxx_pci_error_detected,
3431         .mmio_enabled = qla2xxx_pci_mmio_enabled,
3432         .slot_reset = qla2xxx_pci_slot_reset,
3433         .resume = qla2xxx_pci_resume,
3434 };
3435
3436 static struct pci_device_id qla2xxx_pci_tbl[] = {
3437         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
3438         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
3439         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
3440         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
3441         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
3442         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
3443         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
3444         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
3445         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
3446         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) },
3447         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
3448         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
3449         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
3450         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8001) },
3451         { 0 },
3452 };
3453 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
3454
3455 static struct pci_driver qla2xxx_pci_driver = {
3456         .name           = QLA2XXX_DRIVER_NAME,
3457         .driver         = {
3458                 .owner          = THIS_MODULE,
3459         },
3460         .id_table       = qla2xxx_pci_tbl,
3461         .probe          = qla2x00_probe_one,
3462         .remove         = qla2x00_remove_one,
3463         .err_handler    = &qla2xxx_err_handler,
3464 };
3465
3466 /**
3467  * qla2x00_module_init - Module initialization.
3468  **/
3469 static int __init
3470 qla2x00_module_init(void)
3471 {
3472         int ret = 0;
3473
3474         /* Allocate cache for SRBs. */
3475         srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
3476             SLAB_HWCACHE_ALIGN, NULL);
3477         if (srb_cachep == NULL) {
3478                 printk(KERN_ERR
3479                     "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
3480                 return -ENOMEM;
3481         }
3482
3483         /* Derive version string. */
3484         strcpy(qla2x00_version_str, QLA2XXX_VERSION);
3485         if (ql2xextended_error_logging)
3486                 strcat(qla2x00_version_str, "-debug");
3487
3488         qla2xxx_transport_template =
3489             fc_attach_transport(&qla2xxx_transport_functions);
3490         if (!qla2xxx_transport_template) {
3491                 kmem_cache_destroy(srb_cachep);
3492                 return -ENODEV;
3493         }
3494         qla2xxx_transport_vport_template =
3495             fc_attach_transport(&qla2xxx_transport_vport_functions);
3496         if (!qla2xxx_transport_vport_template) {
3497                 kmem_cache_destroy(srb_cachep);
3498                 fc_release_transport(qla2xxx_transport_template);
3499                 return -ENODEV;
3500         }
3501
3502         printk(KERN_INFO "QLogic Fibre Channel HBA Driver: %s\n",
3503             qla2x00_version_str);
3504         ret = pci_register_driver(&qla2xxx_pci_driver);
3505         if (ret) {
3506                 kmem_cache_destroy(srb_cachep);
3507                 fc_release_transport(qla2xxx_transport_template);
3508                 fc_release_transport(qla2xxx_transport_vport_template);
3509         }
3510         return ret;
3511 }
3512
3513 /**
3514  * qla2x00_module_exit - Module cleanup.
3515  **/
3516 static void __exit
3517 qla2x00_module_exit(void)
3518 {
3519         pci_unregister_driver(&qla2xxx_pci_driver);
3520         qla2x00_release_firmware();
3521         kmem_cache_destroy(srb_cachep);
3522         fc_release_transport(qla2xxx_transport_template);
3523         fc_release_transport(qla2xxx_transport_vport_template);
3524 }
3525
3526 module_init(qla2x00_module_init);
3527 module_exit(qla2x00_module_exit);
3528
3529 MODULE_AUTHOR("QLogic Corporation");
3530 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
3531 MODULE_LICENSE("GPL");
3532 MODULE_VERSION(QLA2XXX_VERSION);
3533 MODULE_FIRMWARE(FW_FILE_ISP21XX);
3534 MODULE_FIRMWARE(FW_FILE_ISP22XX);
3535 MODULE_FIRMWARE(FW_FILE_ISP2300);
3536 MODULE_FIRMWARE(FW_FILE_ISP2322);
3537 MODULE_FIRMWARE(FW_FILE_ISP24XX);
3538 MODULE_FIRMWARE(FW_FILE_ISP25XX);
3539 MODULE_FIRMWARE(FW_FILE_ISP81XX);