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         fc_port_t *fcport = *(fc_port_t **)rport->dd_data;
1192         struct req_que *req = vha->req;
1193
1194         if (sdev->tagged_supported)
1195                 scsi_activate_tcq(sdev, req->max_q_depth);
1196         else
1197                 scsi_deactivate_tcq(sdev, req->max_q_depth);
1198
1199         rport->dev_loss_tmo = ha->port_down_retry_count;
1200         if (sdev->type == TYPE_TAPE)
1201                 fcport->flags |= FCF_TAPE_PRESENT;
1202
1203         return 0;
1204 }
1205
1206 static void
1207 qla2xxx_slave_destroy(struct scsi_device *sdev)
1208 {
1209         sdev->hostdata = NULL;
1210 }
1211
1212 static void qla2x00_handle_queue_full(struct scsi_device *sdev, int qdepth)
1213 {
1214         fc_port_t *fcport = (struct fc_port *) sdev->hostdata;
1215
1216         if (!scsi_track_queue_full(sdev, qdepth))
1217                 return;
1218
1219         DEBUG2(qla_printk(KERN_INFO, fcport->vha->hw,
1220                 "scsi(%ld:%d:%d:%d): Queue depth adjusted-down to %d.\n",
1221                 fcport->vha->host_no, sdev->channel, sdev->id, sdev->lun,
1222                 sdev->queue_depth));
1223 }
1224
1225 static void qla2x00_adjust_sdev_qdepth_up(struct scsi_device *sdev, int qdepth)
1226 {
1227         fc_port_t *fcport = sdev->hostdata;
1228         struct scsi_qla_host *vha = fcport->vha;
1229         struct qla_hw_data *ha = vha->hw;
1230         struct req_que *req = NULL;
1231
1232         req = vha->req;
1233         if (!req)
1234                 return;
1235
1236         if (req->max_q_depth <= sdev->queue_depth || req->max_q_depth < qdepth)
1237                 return;
1238
1239         if (sdev->ordered_tags)
1240                 scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, qdepth);
1241         else
1242                 scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, qdepth);
1243
1244         DEBUG2(qla_printk(KERN_INFO, ha,
1245                "scsi(%ld:%d:%d:%d): Queue depth adjusted-up to %d.\n",
1246                fcport->vha->host_no, sdev->channel, sdev->id, sdev->lun,
1247                sdev->queue_depth));
1248 }
1249
1250 static int
1251 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
1252 {
1253         switch (reason) {
1254         case SCSI_QDEPTH_DEFAULT:
1255                 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1256                 break;
1257         case SCSI_QDEPTH_QFULL:
1258                 qla2x00_handle_queue_full(sdev, qdepth);
1259                 break;
1260         case SCSI_QDEPTH_RAMP_UP:
1261                 qla2x00_adjust_sdev_qdepth_up(sdev, qdepth);
1262                 break;
1263         default:
1264                 return EOPNOTSUPP;
1265         }
1266
1267         return sdev->queue_depth;
1268 }
1269
1270 static int
1271 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1272 {
1273         if (sdev->tagged_supported) {
1274                 scsi_set_tag_type(sdev, tag_type);
1275                 if (tag_type)
1276                         scsi_activate_tcq(sdev, sdev->queue_depth);
1277                 else
1278                         scsi_deactivate_tcq(sdev, sdev->queue_depth);
1279         } else
1280                 tag_type = 0;
1281
1282         return tag_type;
1283 }
1284
1285 /**
1286  * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1287  * @ha: HA context
1288  *
1289  * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1290  * supported addressing method.
1291  */
1292 static void
1293 qla2x00_config_dma_addressing(struct qla_hw_data *ha)
1294 {
1295         /* Assume a 32bit DMA mask. */
1296         ha->flags.enable_64bit_addressing = 0;
1297
1298         if (!dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(64))) {
1299                 /* Any upper-dword bits set? */
1300                 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1301                     !pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
1302                         /* Ok, a 64bit DMA mask is applicable. */
1303                         ha->flags.enable_64bit_addressing = 1;
1304                         ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1305                         ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1306                         return;
1307                 }
1308         }
1309
1310         dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(32));
1311         pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(32));
1312 }
1313
1314 static void
1315 qla2x00_enable_intrs(struct qla_hw_data *ha)
1316 {
1317         unsigned long flags = 0;
1318         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1319
1320         spin_lock_irqsave(&ha->hardware_lock, flags);
1321         ha->interrupts_on = 1;
1322         /* enable risc and host interrupts */
1323         WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1324         RD_REG_WORD(&reg->ictrl);
1325         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1326
1327 }
1328
1329 static void
1330 qla2x00_disable_intrs(struct qla_hw_data *ha)
1331 {
1332         unsigned long flags = 0;
1333         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1334
1335         spin_lock_irqsave(&ha->hardware_lock, flags);
1336         ha->interrupts_on = 0;
1337         /* disable risc and host interrupts */
1338         WRT_REG_WORD(&reg->ictrl, 0);
1339         RD_REG_WORD(&reg->ictrl);
1340         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1341 }
1342
1343 static void
1344 qla24xx_enable_intrs(struct qla_hw_data *ha)
1345 {
1346         unsigned long flags = 0;
1347         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1348
1349         spin_lock_irqsave(&ha->hardware_lock, flags);
1350         ha->interrupts_on = 1;
1351         WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1352         RD_REG_DWORD(&reg->ictrl);
1353         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1354 }
1355
1356 static void
1357 qla24xx_disable_intrs(struct qla_hw_data *ha)
1358 {
1359         unsigned long flags = 0;
1360         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1361
1362         if (IS_NOPOLLING_TYPE(ha))
1363                 return;
1364         spin_lock_irqsave(&ha->hardware_lock, flags);
1365         ha->interrupts_on = 0;
1366         WRT_REG_DWORD(&reg->ictrl, 0);
1367         RD_REG_DWORD(&reg->ictrl);
1368         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1369 }
1370
1371 static struct isp_operations qla2100_isp_ops = {
1372         .pci_config             = qla2100_pci_config,
1373         .reset_chip             = qla2x00_reset_chip,
1374         .chip_diag              = qla2x00_chip_diag,
1375         .config_rings           = qla2x00_config_rings,
1376         .reset_adapter          = qla2x00_reset_adapter,
1377         .nvram_config           = qla2x00_nvram_config,
1378         .update_fw_options      = qla2x00_update_fw_options,
1379         .load_risc              = qla2x00_load_risc,
1380         .pci_info_str           = qla2x00_pci_info_str,
1381         .fw_version_str         = qla2x00_fw_version_str,
1382         .intr_handler           = qla2100_intr_handler,
1383         .enable_intrs           = qla2x00_enable_intrs,
1384         .disable_intrs          = qla2x00_disable_intrs,
1385         .abort_command          = qla2x00_abort_command,
1386         .target_reset           = qla2x00_abort_target,
1387         .lun_reset              = qla2x00_lun_reset,
1388         .fabric_login           = qla2x00_login_fabric,
1389         .fabric_logout          = qla2x00_fabric_logout,
1390         .calc_req_entries       = qla2x00_calc_iocbs_32,
1391         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1392         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1393         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1394         .read_nvram             = qla2x00_read_nvram_data,
1395         .write_nvram            = qla2x00_write_nvram_data,
1396         .fw_dump                = qla2100_fw_dump,
1397         .beacon_on              = NULL,
1398         .beacon_off             = NULL,
1399         .beacon_blink           = NULL,
1400         .read_optrom            = qla2x00_read_optrom_data,
1401         .write_optrom           = qla2x00_write_optrom_data,
1402         .get_flash_version      = qla2x00_get_flash_version,
1403         .start_scsi             = qla2x00_start_scsi,
1404 };
1405
1406 static struct isp_operations qla2300_isp_ops = {
1407         .pci_config             = qla2300_pci_config,
1408         .reset_chip             = qla2x00_reset_chip,
1409         .chip_diag              = qla2x00_chip_diag,
1410         .config_rings           = qla2x00_config_rings,
1411         .reset_adapter          = qla2x00_reset_adapter,
1412         .nvram_config           = qla2x00_nvram_config,
1413         .update_fw_options      = qla2x00_update_fw_options,
1414         .load_risc              = qla2x00_load_risc,
1415         .pci_info_str           = qla2x00_pci_info_str,
1416         .fw_version_str         = qla2x00_fw_version_str,
1417         .intr_handler           = qla2300_intr_handler,
1418         .enable_intrs           = qla2x00_enable_intrs,
1419         .disable_intrs          = qla2x00_disable_intrs,
1420         .abort_command          = qla2x00_abort_command,
1421         .target_reset           = qla2x00_abort_target,
1422         .lun_reset              = qla2x00_lun_reset,
1423         .fabric_login           = qla2x00_login_fabric,
1424         .fabric_logout          = qla2x00_fabric_logout,
1425         .calc_req_entries       = qla2x00_calc_iocbs_32,
1426         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1427         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1428         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1429         .read_nvram             = qla2x00_read_nvram_data,
1430         .write_nvram            = qla2x00_write_nvram_data,
1431         .fw_dump                = qla2300_fw_dump,
1432         .beacon_on              = qla2x00_beacon_on,
1433         .beacon_off             = qla2x00_beacon_off,
1434         .beacon_blink           = qla2x00_beacon_blink,
1435         .read_optrom            = qla2x00_read_optrom_data,
1436         .write_optrom           = qla2x00_write_optrom_data,
1437         .get_flash_version      = qla2x00_get_flash_version,
1438         .start_scsi             = qla2x00_start_scsi,
1439 };
1440
1441 static struct isp_operations qla24xx_isp_ops = {
1442         .pci_config             = qla24xx_pci_config,
1443         .reset_chip             = qla24xx_reset_chip,
1444         .chip_diag              = qla24xx_chip_diag,
1445         .config_rings           = qla24xx_config_rings,
1446         .reset_adapter          = qla24xx_reset_adapter,
1447         .nvram_config           = qla24xx_nvram_config,
1448         .update_fw_options      = qla24xx_update_fw_options,
1449         .load_risc              = qla24xx_load_risc,
1450         .pci_info_str           = qla24xx_pci_info_str,
1451         .fw_version_str         = qla24xx_fw_version_str,
1452         .intr_handler           = qla24xx_intr_handler,
1453         .enable_intrs           = qla24xx_enable_intrs,
1454         .disable_intrs          = qla24xx_disable_intrs,
1455         .abort_command          = qla24xx_abort_command,
1456         .target_reset           = qla24xx_abort_target,
1457         .lun_reset              = qla24xx_lun_reset,
1458         .fabric_login           = qla24xx_login_fabric,
1459         .fabric_logout          = qla24xx_fabric_logout,
1460         .calc_req_entries       = NULL,
1461         .build_iocbs            = NULL,
1462         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1463         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1464         .read_nvram             = qla24xx_read_nvram_data,
1465         .write_nvram            = qla24xx_write_nvram_data,
1466         .fw_dump                = qla24xx_fw_dump,
1467         .beacon_on              = qla24xx_beacon_on,
1468         .beacon_off             = qla24xx_beacon_off,
1469         .beacon_blink           = qla24xx_beacon_blink,
1470         .read_optrom            = qla24xx_read_optrom_data,
1471         .write_optrom           = qla24xx_write_optrom_data,
1472         .get_flash_version      = qla24xx_get_flash_version,
1473         .start_scsi             = qla24xx_start_scsi,
1474 };
1475
1476 static struct isp_operations qla25xx_isp_ops = {
1477         .pci_config             = qla25xx_pci_config,
1478         .reset_chip             = qla24xx_reset_chip,
1479         .chip_diag              = qla24xx_chip_diag,
1480         .config_rings           = qla24xx_config_rings,
1481         .reset_adapter          = qla24xx_reset_adapter,
1482         .nvram_config           = qla24xx_nvram_config,
1483         .update_fw_options      = qla24xx_update_fw_options,
1484         .load_risc              = qla24xx_load_risc,
1485         .pci_info_str           = qla24xx_pci_info_str,
1486         .fw_version_str         = qla24xx_fw_version_str,
1487         .intr_handler           = qla24xx_intr_handler,
1488         .enable_intrs           = qla24xx_enable_intrs,
1489         .disable_intrs          = qla24xx_disable_intrs,
1490         .abort_command          = qla24xx_abort_command,
1491         .target_reset           = qla24xx_abort_target,
1492         .lun_reset              = qla24xx_lun_reset,
1493         .fabric_login           = qla24xx_login_fabric,
1494         .fabric_logout          = qla24xx_fabric_logout,
1495         .calc_req_entries       = NULL,
1496         .build_iocbs            = NULL,
1497         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1498         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1499         .read_nvram             = qla25xx_read_nvram_data,
1500         .write_nvram            = qla25xx_write_nvram_data,
1501         .fw_dump                = qla25xx_fw_dump,
1502         .beacon_on              = qla24xx_beacon_on,
1503         .beacon_off             = qla24xx_beacon_off,
1504         .beacon_blink           = qla24xx_beacon_blink,
1505         .read_optrom            = qla25xx_read_optrom_data,
1506         .write_optrom           = qla24xx_write_optrom_data,
1507         .get_flash_version      = qla24xx_get_flash_version,
1508         .start_scsi             = qla24xx_start_scsi,
1509 };
1510
1511 static struct isp_operations qla81xx_isp_ops = {
1512         .pci_config             = qla25xx_pci_config,
1513         .reset_chip             = qla24xx_reset_chip,
1514         .chip_diag              = qla24xx_chip_diag,
1515         .config_rings           = qla24xx_config_rings,
1516         .reset_adapter          = qla24xx_reset_adapter,
1517         .nvram_config           = qla81xx_nvram_config,
1518         .update_fw_options      = qla81xx_update_fw_options,
1519         .load_risc              = qla81xx_load_risc,
1520         .pci_info_str           = qla24xx_pci_info_str,
1521         .fw_version_str         = qla24xx_fw_version_str,
1522         .intr_handler           = qla24xx_intr_handler,
1523         .enable_intrs           = qla24xx_enable_intrs,
1524         .disable_intrs          = qla24xx_disable_intrs,
1525         .abort_command          = qla24xx_abort_command,
1526         .target_reset           = qla24xx_abort_target,
1527         .lun_reset              = qla24xx_lun_reset,
1528         .fabric_login           = qla24xx_login_fabric,
1529         .fabric_logout          = qla24xx_fabric_logout,
1530         .calc_req_entries       = NULL,
1531         .build_iocbs            = NULL,
1532         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1533         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1534         .read_nvram             = NULL,
1535         .write_nvram            = NULL,
1536         .fw_dump                = qla81xx_fw_dump,
1537         .beacon_on              = qla24xx_beacon_on,
1538         .beacon_off             = qla24xx_beacon_off,
1539         .beacon_blink           = qla24xx_beacon_blink,
1540         .read_optrom            = qla25xx_read_optrom_data,
1541         .write_optrom           = qla24xx_write_optrom_data,
1542         .get_flash_version      = qla24xx_get_flash_version,
1543         .start_scsi             = qla24xx_start_scsi,
1544 };
1545
1546 static inline void
1547 qla2x00_set_isp_flags(struct qla_hw_data *ha)
1548 {
1549         ha->device_type = DT_EXTENDED_IDS;
1550         switch (ha->pdev->device) {
1551         case PCI_DEVICE_ID_QLOGIC_ISP2100:
1552                 ha->device_type |= DT_ISP2100;
1553                 ha->device_type &= ~DT_EXTENDED_IDS;
1554                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1555                 break;
1556         case PCI_DEVICE_ID_QLOGIC_ISP2200:
1557                 ha->device_type |= DT_ISP2200;
1558                 ha->device_type &= ~DT_EXTENDED_IDS;
1559                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1560                 break;
1561         case PCI_DEVICE_ID_QLOGIC_ISP2300:
1562                 ha->device_type |= DT_ISP2300;
1563                 ha->device_type |= DT_ZIO_SUPPORTED;
1564                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1565                 break;
1566         case PCI_DEVICE_ID_QLOGIC_ISP2312:
1567                 ha->device_type |= DT_ISP2312;
1568                 ha->device_type |= DT_ZIO_SUPPORTED;
1569                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1570                 break;
1571         case PCI_DEVICE_ID_QLOGIC_ISP2322:
1572                 ha->device_type |= DT_ISP2322;
1573                 ha->device_type |= DT_ZIO_SUPPORTED;
1574                 if (ha->pdev->subsystem_vendor == 0x1028 &&
1575                     ha->pdev->subsystem_device == 0x0170)
1576                         ha->device_type |= DT_OEM_001;
1577                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1578                 break;
1579         case PCI_DEVICE_ID_QLOGIC_ISP6312:
1580                 ha->device_type |= DT_ISP6312;
1581                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1582                 break;
1583         case PCI_DEVICE_ID_QLOGIC_ISP6322:
1584                 ha->device_type |= DT_ISP6322;
1585                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1586                 break;
1587         case PCI_DEVICE_ID_QLOGIC_ISP2422:
1588                 ha->device_type |= DT_ISP2422;
1589                 ha->device_type |= DT_ZIO_SUPPORTED;
1590                 ha->device_type |= DT_FWI2;
1591                 ha->device_type |= DT_IIDMA;
1592                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1593                 break;
1594         case PCI_DEVICE_ID_QLOGIC_ISP2432:
1595                 ha->device_type |= DT_ISP2432;
1596                 ha->device_type |= DT_ZIO_SUPPORTED;
1597                 ha->device_type |= DT_FWI2;
1598                 ha->device_type |= DT_IIDMA;
1599                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1600                 break;
1601         case PCI_DEVICE_ID_QLOGIC_ISP8432:
1602                 ha->device_type |= DT_ISP8432;
1603                 ha->device_type |= DT_ZIO_SUPPORTED;
1604                 ha->device_type |= DT_FWI2;
1605                 ha->device_type |= DT_IIDMA;
1606                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1607                 break;
1608         case PCI_DEVICE_ID_QLOGIC_ISP5422:
1609                 ha->device_type |= DT_ISP5422;
1610                 ha->device_type |= DT_FWI2;
1611                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1612                 break;
1613         case PCI_DEVICE_ID_QLOGIC_ISP5432:
1614                 ha->device_type |= DT_ISP5432;
1615                 ha->device_type |= DT_FWI2;
1616                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1617                 break;
1618         case PCI_DEVICE_ID_QLOGIC_ISP2532:
1619                 ha->device_type |= DT_ISP2532;
1620                 ha->device_type |= DT_ZIO_SUPPORTED;
1621                 ha->device_type |= DT_FWI2;
1622                 ha->device_type |= DT_IIDMA;
1623                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1624                 break;
1625         case PCI_DEVICE_ID_QLOGIC_ISP8001:
1626                 ha->device_type |= DT_ISP8001;
1627                 ha->device_type |= DT_ZIO_SUPPORTED;
1628                 ha->device_type |= DT_FWI2;
1629                 ha->device_type |= DT_IIDMA;
1630                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1631                 break;
1632         }
1633
1634         /* Get adapter physical port no from interrupt pin register. */
1635         pci_read_config_byte(ha->pdev, PCI_INTERRUPT_PIN, &ha->port_no);
1636         if (ha->port_no & 1)
1637                 ha->flags.port0 = 1;
1638         else
1639                 ha->flags.port0 = 0;
1640 }
1641
1642 static int
1643 qla2x00_iospace_config(struct qla_hw_data *ha)
1644 {
1645         resource_size_t pio;
1646         uint16_t msix;
1647         int cpus;
1648
1649         if (pci_request_selected_regions(ha->pdev, ha->bars,
1650             QLA2XXX_DRIVER_NAME)) {
1651                 qla_printk(KERN_WARNING, ha,
1652                     "Failed to reserve PIO/MMIO regions (%s)\n",
1653                     pci_name(ha->pdev));
1654
1655                 goto iospace_error_exit;
1656         }
1657         if (!(ha->bars & 1))
1658                 goto skip_pio;
1659
1660         /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1661         pio = pci_resource_start(ha->pdev, 0);
1662         if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
1663                 if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1664                         qla_printk(KERN_WARNING, ha,
1665                             "Invalid PCI I/O region size (%s)...\n",
1666                                 pci_name(ha->pdev));
1667                         pio = 0;
1668                 }
1669         } else {
1670                 qla_printk(KERN_WARNING, ha,
1671                     "region #0 not a PIO resource (%s)...\n",
1672                     pci_name(ha->pdev));
1673                 pio = 0;
1674         }
1675         ha->pio_address = pio;
1676
1677 skip_pio:
1678         /* Use MMIO operations for all accesses. */
1679         if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
1680                 qla_printk(KERN_ERR, ha,
1681                     "region #1 not an MMIO resource (%s), aborting\n",
1682                     pci_name(ha->pdev));
1683                 goto iospace_error_exit;
1684         }
1685         if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
1686                 qla_printk(KERN_ERR, ha,
1687                     "Invalid PCI mem region size (%s), aborting\n",
1688                         pci_name(ha->pdev));
1689                 goto iospace_error_exit;
1690         }
1691
1692         ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
1693         if (!ha->iobase) {
1694                 qla_printk(KERN_ERR, ha,
1695                     "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1696
1697                 goto iospace_error_exit;
1698         }
1699
1700         /* Determine queue resources */
1701         ha->max_req_queues = ha->max_rsp_queues = 1;
1702         if ((ql2xmaxqueues <= 1 || ql2xmultique_tag < 1) &&
1703                 (!IS_QLA25XX(ha) && !IS_QLA81XX(ha)))
1704                 goto mqiobase_exit;
1705         ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 3),
1706                         pci_resource_len(ha->pdev, 3));
1707         if (ha->mqiobase) {
1708                 /* Read MSIX vector size of the board */
1709                 pci_read_config_word(ha->pdev, QLA_PCI_MSIX_CONTROL, &msix);
1710                 ha->msix_count = msix;
1711                 /* Max queues are bounded by available msix vectors */
1712                 /* queue 0 uses two msix vectors */
1713                 if (ql2xmultique_tag) {
1714                         cpus = num_online_cpus();
1715                         ha->max_rsp_queues = (ha->msix_count - 1 > cpus) ?
1716                                 (cpus + 1) : (ha->msix_count - 1);
1717                         ha->max_req_queues = 2;
1718                 } else if (ql2xmaxqueues > 1) {
1719                         ha->max_req_queues = ql2xmaxqueues > QLA_MQ_SIZE ?
1720                                                 QLA_MQ_SIZE : ql2xmaxqueues;
1721                         DEBUG2(qla_printk(KERN_INFO, ha, "QoS mode set, max no"
1722                         " of request queues:%d\n", ha->max_req_queues));
1723                 }
1724                 qla_printk(KERN_INFO, ha,
1725                         "MSI-X vector count: %d\n", msix);
1726         } else
1727                 qla_printk(KERN_INFO, ha, "BAR 3 not enabled\n");
1728
1729 mqiobase_exit:
1730         ha->msix_count = ha->max_rsp_queues + 1;
1731         return (0);
1732
1733 iospace_error_exit:
1734         return (-ENOMEM);
1735 }
1736
1737 static void
1738 qla2xxx_scan_start(struct Scsi_Host *shost)
1739 {
1740         scsi_qla_host_t *vha = shost_priv(shost);
1741
1742         if (vha->hw->flags.running_gold_fw)
1743                 return;
1744
1745         set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1746         set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1747         set_bit(RSCN_UPDATE, &vha->dpc_flags);
1748         set_bit(NPIV_CONFIG_NEEDED, &vha->dpc_flags);
1749 }
1750
1751 static int
1752 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1753 {
1754         scsi_qla_host_t *vha = shost_priv(shost);
1755
1756         if (!vha->host)
1757                 return 1;
1758         if (time > vha->hw->loop_reset_delay * HZ)
1759                 return 1;
1760
1761         return atomic_read(&vha->loop_state) == LOOP_READY;
1762 }
1763
1764 /*
1765  * PCI driver interface
1766  */
1767 static int __devinit
1768 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1769 {
1770         int     ret = -ENODEV;
1771         struct Scsi_Host *host;
1772         scsi_qla_host_t *base_vha = NULL;
1773         struct qla_hw_data *ha;
1774         char pci_info[30];
1775         char fw_str[30];
1776         struct scsi_host_template *sht;
1777         int bars, max_id, mem_only = 0;
1778         uint16_t req_length = 0, rsp_length = 0;
1779         struct req_que *req = NULL;
1780         struct rsp_que *rsp = NULL;
1781
1782         bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
1783         sht = &qla2xxx_driver_template;
1784         if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1785             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1786             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8432 ||
1787             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1788             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
1789             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532 ||
1790             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8001) {
1791                 bars = pci_select_bars(pdev, IORESOURCE_MEM);
1792                 mem_only = 1;
1793         }
1794
1795         if (mem_only) {
1796                 if (pci_enable_device_mem(pdev))
1797                         goto probe_out;
1798         } else {
1799                 if (pci_enable_device(pdev))
1800                         goto probe_out;
1801         }
1802
1803         /* This may fail but that's ok */
1804         pci_enable_pcie_error_reporting(pdev);
1805
1806         ha = kzalloc(sizeof(struct qla_hw_data), GFP_KERNEL);
1807         if (!ha) {
1808                 DEBUG(printk("Unable to allocate memory for ha\n"));
1809                 goto probe_out;
1810         }
1811         ha->pdev = pdev;
1812
1813         /* Clear our data area */
1814         ha->bars = bars;
1815         ha->mem_only = mem_only;
1816         spin_lock_init(&ha->hardware_lock);
1817
1818         /* Set ISP-type information. */
1819         qla2x00_set_isp_flags(ha);
1820         /* Configure PCI I/O space */
1821         ret = qla2x00_iospace_config(ha);
1822         if (ret)
1823                 goto probe_hw_failed;
1824
1825         qla_printk(KERN_INFO, ha,
1826             "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1827             ha->iobase);
1828
1829         ha->prev_topology = 0;
1830         ha->init_cb_size = sizeof(init_cb_t);
1831         ha->link_data_rate = PORT_SPEED_UNKNOWN;
1832         ha->optrom_size = OPTROM_SIZE_2300;
1833
1834         /* Assign ISP specific operations. */
1835         max_id = MAX_TARGETS_2200;
1836         if (IS_QLA2100(ha)) {
1837                 max_id = MAX_TARGETS_2100;
1838                 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1839                 req_length = REQUEST_ENTRY_CNT_2100;
1840                 rsp_length = RESPONSE_ENTRY_CNT_2100;
1841                 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
1842                 ha->gid_list_info_size = 4;
1843                 ha->flash_conf_off = ~0;
1844                 ha->flash_data_off = ~0;
1845                 ha->nvram_conf_off = ~0;
1846                 ha->nvram_data_off = ~0;
1847                 ha->isp_ops = &qla2100_isp_ops;
1848         } else if (IS_QLA2200(ha)) {
1849                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1850                 req_length = REQUEST_ENTRY_CNT_2200;
1851                 rsp_length = RESPONSE_ENTRY_CNT_2100;
1852                 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
1853                 ha->gid_list_info_size = 4;
1854                 ha->flash_conf_off = ~0;
1855                 ha->flash_data_off = ~0;
1856                 ha->nvram_conf_off = ~0;
1857                 ha->nvram_data_off = ~0;
1858                 ha->isp_ops = &qla2100_isp_ops;
1859         } else if (IS_QLA23XX(ha)) {
1860                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1861                 req_length = REQUEST_ENTRY_CNT_2200;
1862                 rsp_length = RESPONSE_ENTRY_CNT_2300;
1863                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
1864                 ha->gid_list_info_size = 6;
1865                 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1866                         ha->optrom_size = OPTROM_SIZE_2322;
1867                 ha->flash_conf_off = ~0;
1868                 ha->flash_data_off = ~0;
1869                 ha->nvram_conf_off = ~0;
1870                 ha->nvram_data_off = ~0;
1871                 ha->isp_ops = &qla2300_isp_ops;
1872         } else if (IS_QLA24XX_TYPE(ha)) {
1873                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1874                 req_length = REQUEST_ENTRY_CNT_24XX;
1875                 rsp_length = RESPONSE_ENTRY_CNT_2300;
1876                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
1877                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1878                 ha->gid_list_info_size = 8;
1879                 ha->optrom_size = OPTROM_SIZE_24XX;
1880                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA24XX;
1881                 ha->isp_ops = &qla24xx_isp_ops;
1882                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
1883                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
1884                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
1885                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
1886         } else if (IS_QLA25XX(ha)) {
1887                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1888                 req_length = REQUEST_ENTRY_CNT_24XX;
1889                 rsp_length = RESPONSE_ENTRY_CNT_2300;
1890                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
1891                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1892                 ha->gid_list_info_size = 8;
1893                 ha->optrom_size = OPTROM_SIZE_25XX;
1894                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
1895                 ha->isp_ops = &qla25xx_isp_ops;
1896                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
1897                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
1898                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
1899                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
1900         } else if (IS_QLA81XX(ha)) {
1901                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1902                 req_length = REQUEST_ENTRY_CNT_24XX;
1903                 rsp_length = RESPONSE_ENTRY_CNT_2300;
1904                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
1905                 ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
1906                 ha->gid_list_info_size = 8;
1907                 ha->optrom_size = OPTROM_SIZE_81XX;
1908                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
1909                 ha->isp_ops = &qla81xx_isp_ops;
1910                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
1911                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
1912                 ha->nvram_conf_off = ~0;
1913                 ha->nvram_data_off = ~0;
1914         }
1915
1916         mutex_init(&ha->vport_lock);
1917         init_completion(&ha->mbx_cmd_comp);
1918         complete(&ha->mbx_cmd_comp);
1919         init_completion(&ha->mbx_intr_comp);
1920
1921         set_bit(0, (unsigned long *) ha->vp_idx_map);
1922
1923         qla2x00_config_dma_addressing(ha);
1924         ret = qla2x00_mem_alloc(ha, req_length, rsp_length, &req, &rsp);
1925         if (!ret) {
1926                 qla_printk(KERN_WARNING, ha,
1927                     "[ERROR] Failed to allocate memory for adapter\n");
1928
1929                 goto probe_hw_failed;
1930         }
1931
1932         req->max_q_depth = MAX_Q_DEPTH;
1933         if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
1934                 req->max_q_depth = ql2xmaxqdepth;
1935
1936
1937         base_vha = qla2x00_create_host(sht, ha);
1938         if (!base_vha) {
1939                 qla_printk(KERN_WARNING, ha,
1940                     "[ERROR] Failed to allocate memory for scsi_host\n");
1941
1942                 ret = -ENOMEM;
1943                 qla2x00_mem_free(ha);
1944                 qla2x00_free_req_que(ha, req);
1945                 qla2x00_free_rsp_que(ha, rsp);
1946                 goto probe_hw_failed;
1947         }
1948
1949         pci_set_drvdata(pdev, base_vha);
1950
1951         host = base_vha->host;
1952         base_vha->req = req;
1953         host->can_queue = req->length + 128;
1954         if (IS_QLA2XXX_MIDTYPE(ha))
1955                 base_vha->mgmt_svr_loop_id = 10 + base_vha->vp_idx;
1956         else
1957                 base_vha->mgmt_svr_loop_id = MANAGEMENT_SERVER +
1958                                                 base_vha->vp_idx;
1959         if (IS_QLA2100(ha))
1960                 host->sg_tablesize = 32;
1961         host->max_id = max_id;
1962         host->this_id = 255;
1963         host->cmd_per_lun = 3;
1964         host->unique_id = host->host_no;
1965         host->max_cmd_len = MAX_CMDSZ;
1966         host->max_channel = MAX_BUSES - 1;
1967         host->max_lun = MAX_LUNS;
1968         host->transportt = qla2xxx_transport_template;
1969
1970         /* Set up the irqs */
1971         ret = qla2x00_request_irqs(ha, rsp);
1972         if (ret)
1973                 goto probe_init_failed;
1974         /* Alloc arrays of request and response ring ptrs */
1975 que_init:
1976         if (!qla2x00_alloc_queues(ha)) {
1977                 qla_printk(KERN_WARNING, ha,
1978                 "[ERROR] Failed to allocate memory for queue"
1979                 " pointers\n");
1980                 goto probe_init_failed;
1981         }
1982         ha->rsp_q_map[0] = rsp;
1983         ha->req_q_map[0] = req;
1984         rsp->req = req;
1985         req->rsp = rsp;
1986         set_bit(0, ha->req_qid_map);
1987         set_bit(0, ha->rsp_qid_map);
1988         /* FWI2-capable only. */
1989         req->req_q_in = &ha->iobase->isp24.req_q_in;
1990         req->req_q_out = &ha->iobase->isp24.req_q_out;
1991         rsp->rsp_q_in = &ha->iobase->isp24.rsp_q_in;
1992         rsp->rsp_q_out = &ha->iobase->isp24.rsp_q_out;
1993         if (ha->mqenable) {
1994                 req->req_q_in = &ha->mqiobase->isp25mq.req_q_in;
1995                 req->req_q_out = &ha->mqiobase->isp25mq.req_q_out;
1996                 rsp->rsp_q_in = &ha->mqiobase->isp25mq.rsp_q_in;
1997                 rsp->rsp_q_out =  &ha->mqiobase->isp25mq.rsp_q_out;
1998         }
1999
2000         if (qla2x00_initialize_adapter(base_vha)) {
2001                 qla_printk(KERN_WARNING, ha,
2002                     "Failed to initialize adapter\n");
2003
2004                 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
2005                     "Adapter flags %x.\n",
2006                     base_vha->host_no, base_vha->device_flags));
2007
2008                 ret = -ENODEV;
2009                 goto probe_failed;
2010         }
2011
2012         if (ha->mqenable) {
2013                 if (qla25xx_setup_mode(base_vha)) {
2014                         qla_printk(KERN_WARNING, ha,
2015                                 "Can't create queues, falling back to single"
2016                                 " queue mode\n");
2017                         goto que_init;
2018                 }
2019         }
2020
2021         if (ha->flags.running_gold_fw)
2022                 goto skip_dpc;
2023
2024         /*
2025          * Startup the kernel thread for this host adapter
2026          */
2027         ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
2028                         "%s_dpc", base_vha->host_str);
2029         if (IS_ERR(ha->dpc_thread)) {
2030                 qla_printk(KERN_WARNING, ha,
2031                     "Unable to start DPC thread!\n");
2032                 ret = PTR_ERR(ha->dpc_thread);
2033                 goto probe_failed;
2034         }
2035
2036 skip_dpc:
2037         list_add_tail(&base_vha->list, &ha->vp_list);
2038         base_vha->host->irq = ha->pdev->irq;
2039
2040         /* Initialized the timer */
2041         qla2x00_start_timer(base_vha, qla2x00_timer, WATCH_INTERVAL);
2042
2043         DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
2044             base_vha->host_no, ha));
2045
2046         ret = scsi_add_host(host, &pdev->dev);
2047         if (ret)
2048                 goto probe_failed;
2049
2050         base_vha->flags.init_done = 1;
2051         base_vha->flags.online = 1;
2052
2053         ha->isp_ops->enable_intrs(ha);
2054
2055         scsi_scan_host(host);
2056
2057         qla2x00_alloc_sysfs_attr(base_vha);
2058
2059         qla2x00_init_host_attr(base_vha);
2060
2061         qla2x00_dfs_setup(base_vha);
2062
2063         qla_printk(KERN_INFO, ha, "\n"
2064             " QLogic Fibre Channel HBA Driver: %s\n"
2065             "  QLogic %s - %s\n"
2066             "  ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
2067             qla2x00_version_str, ha->model_number,
2068             ha->model_desc ? ha->model_desc : "", pdev->device,
2069             ha->isp_ops->pci_info_str(base_vha, pci_info), pci_name(pdev),
2070             ha->flags.enable_64bit_addressing ? '+' : '-', base_vha->host_no,
2071             ha->isp_ops->fw_version_str(base_vha, fw_str));
2072
2073         return 0;
2074
2075 probe_init_failed:
2076         qla2x00_free_req_que(ha, req);
2077         qla2x00_free_rsp_que(ha, rsp);
2078         ha->max_req_queues = ha->max_rsp_queues = 0;
2079
2080 probe_failed:
2081         if (base_vha->timer_active)
2082                 qla2x00_stop_timer(base_vha);
2083         base_vha->flags.online = 0;
2084         if (ha->dpc_thread) {
2085                 struct task_struct *t = ha->dpc_thread;
2086
2087                 ha->dpc_thread = NULL;
2088                 kthread_stop(t);
2089         }
2090
2091         qla2x00_free_device(base_vha);
2092
2093         scsi_host_put(base_vha->host);
2094
2095 probe_hw_failed:
2096         if (ha->iobase)
2097                 iounmap(ha->iobase);
2098
2099         pci_release_selected_regions(ha->pdev, ha->bars);
2100         kfree(ha);
2101         ha = NULL;
2102
2103 probe_out:
2104         pci_disable_device(pdev);
2105         return ret;
2106 }
2107
2108 static void
2109 qla2x00_remove_one(struct pci_dev *pdev)
2110 {
2111         scsi_qla_host_t *base_vha, *vha, *temp;
2112         struct qla_hw_data  *ha;
2113
2114         base_vha = pci_get_drvdata(pdev);
2115         ha = base_vha->hw;
2116
2117         list_for_each_entry_safe(vha, temp, &ha->vp_list, list) {
2118                 if (vha && vha->fc_vport)
2119                         fc_vport_terminate(vha->fc_vport);
2120         }
2121
2122         set_bit(UNLOADING, &base_vha->dpc_flags);
2123
2124         qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
2125
2126         qla2x00_dfs_remove(base_vha);
2127
2128         qla84xx_put_chip(base_vha);
2129
2130         /* Disable timer */
2131         if (base_vha->timer_active)
2132                 qla2x00_stop_timer(base_vha);
2133
2134         base_vha->flags.online = 0;
2135
2136         /* Flush the work queue and remove it */
2137         if (ha->wq) {
2138                 flush_workqueue(ha->wq);
2139                 destroy_workqueue(ha->wq);
2140                 ha->wq = NULL;
2141         }
2142
2143         /* Kill the kernel thread for this host */
2144         if (ha->dpc_thread) {
2145                 struct task_struct *t = ha->dpc_thread;
2146
2147                 /*
2148                  * qla2xxx_wake_dpc checks for ->dpc_thread
2149                  * so we need to zero it out.
2150                  */
2151                 ha->dpc_thread = NULL;
2152                 kthread_stop(t);
2153         }
2154
2155         qla2x00_free_sysfs_attr(base_vha);
2156
2157         fc_remove_host(base_vha->host);
2158
2159         scsi_remove_host(base_vha->host);
2160
2161         qla2x00_free_device(base_vha);
2162
2163         scsi_host_put(base_vha->host);
2164
2165         if (ha->iobase)
2166                 iounmap(ha->iobase);
2167
2168         if (ha->mqiobase)
2169                 iounmap(ha->mqiobase);
2170
2171         pci_release_selected_regions(ha->pdev, ha->bars);
2172         kfree(ha);
2173         ha = NULL;
2174
2175         pci_disable_device(pdev);
2176         pci_set_drvdata(pdev, NULL);
2177 }
2178
2179 static void
2180 qla2x00_free_device(scsi_qla_host_t *vha)
2181 {
2182         struct qla_hw_data *ha = vha->hw;
2183
2184         qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
2185
2186         /* Disable timer */
2187         if (vha->timer_active)
2188                 qla2x00_stop_timer(vha);
2189
2190         /* Kill the kernel thread for this host */
2191         if (ha->dpc_thread) {
2192                 struct task_struct *t = ha->dpc_thread;
2193
2194                 /*
2195                  * qla2xxx_wake_dpc checks for ->dpc_thread
2196                  * so we need to zero it out.
2197                  */
2198                 ha->dpc_thread = NULL;
2199                 kthread_stop(t);
2200         }
2201
2202         qla25xx_delete_queues(vha);
2203
2204         if (ha->flags.fce_enabled)
2205                 qla2x00_disable_fce_trace(vha, NULL, NULL);
2206
2207         if (ha->eft)
2208                 qla2x00_disable_eft_trace(vha);
2209
2210         /* Stop currently executing firmware. */
2211         qla2x00_try_to_stop_firmware(vha);
2212
2213         vha->flags.online = 0;
2214
2215         /* turn-off interrupts on the card */
2216         if (ha->interrupts_on)
2217                 ha->isp_ops->disable_intrs(ha);
2218
2219         qla2x00_free_irqs(vha);
2220
2221         qla2x00_mem_free(ha);
2222
2223         qla2x00_free_queues(ha);
2224 }
2225
2226 static inline void
2227 qla2x00_schedule_rport_del(struct scsi_qla_host *vha, fc_port_t *fcport,
2228     int defer)
2229 {
2230         struct fc_rport *rport;
2231         scsi_qla_host_t *base_vha;
2232
2233         if (!fcport->rport)
2234                 return;
2235
2236         rport = fcport->rport;
2237         if (defer) {
2238                 base_vha = pci_get_drvdata(vha->hw->pdev);
2239                 spin_lock_irq(vha->host->host_lock);
2240                 fcport->drport = rport;
2241                 spin_unlock_irq(vha->host->host_lock);
2242                 set_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
2243                 qla2xxx_wake_dpc(base_vha);
2244         } else
2245                 fc_remote_port_delete(rport);
2246 }
2247
2248 /*
2249  * qla2x00_mark_device_lost Updates fcport state when device goes offline.
2250  *
2251  * Input: ha = adapter block pointer.  fcport = port structure pointer.
2252  *
2253  * Return: None.
2254  *
2255  * Context:
2256  */
2257 void qla2x00_mark_device_lost(scsi_qla_host_t *vha, fc_port_t *fcport,
2258     int do_login, int defer)
2259 {
2260         if (atomic_read(&fcport->state) == FCS_ONLINE &&
2261             vha->vp_idx == fcport->vp_idx) {
2262                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2263                 qla2x00_schedule_rport_del(vha, fcport, defer);
2264         }
2265         /*
2266          * We may need to retry the login, so don't change the state of the
2267          * port but do the retries.
2268          */
2269         if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
2270                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2271
2272         if (!do_login)
2273                 return;
2274
2275         if (fcport->login_retry == 0) {
2276                 fcport->login_retry = vha->hw->login_retry_count;
2277                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2278
2279                 DEBUG(printk("scsi(%ld): Port login retry: "
2280                     "%02x%02x%02x%02x%02x%02x%02x%02x, "
2281                     "id = 0x%04x retry cnt=%d\n",
2282                     vha->host_no,
2283                     fcport->port_name[0],
2284                     fcport->port_name[1],
2285                     fcport->port_name[2],
2286                     fcport->port_name[3],
2287                     fcport->port_name[4],
2288                     fcport->port_name[5],
2289                     fcport->port_name[6],
2290                     fcport->port_name[7],
2291                     fcport->loop_id,
2292                     fcport->login_retry));
2293         }
2294 }
2295
2296 /*
2297  * qla2x00_mark_all_devices_lost
2298  *      Updates fcport state when device goes offline.
2299  *
2300  * Input:
2301  *      ha = adapter block pointer.
2302  *      fcport = port structure pointer.
2303  *
2304  * Return:
2305  *      None.
2306  *
2307  * Context:
2308  */
2309 void
2310 qla2x00_mark_all_devices_lost(scsi_qla_host_t *vha, int defer)
2311 {
2312         fc_port_t *fcport;
2313
2314         list_for_each_entry(fcport, &vha->vp_fcports, list) {
2315                 if (vha->vp_idx != 0 && vha->vp_idx != fcport->vp_idx)
2316                         continue;
2317
2318                 /*
2319                  * No point in marking the device as lost, if the device is
2320                  * already DEAD.
2321                  */
2322                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
2323                         continue;
2324                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
2325                         if (defer)
2326                                 qla2x00_schedule_rport_del(vha, fcport, defer);
2327                         else if (vha->vp_idx == fcport->vp_idx)
2328                                 qla2x00_schedule_rport_del(vha, fcport, defer);
2329                 }
2330                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2331         }
2332 }
2333
2334 /*
2335 * qla2x00_mem_alloc
2336 *      Allocates adapter memory.
2337 *
2338 * Returns:
2339 *      0  = success.
2340 *      !0  = failure.
2341 */
2342 static int
2343 qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
2344         struct req_que **req, struct rsp_que **rsp)
2345 {
2346         char    name[16];
2347
2348         ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
2349                 &ha->init_cb_dma, GFP_KERNEL);
2350         if (!ha->init_cb)
2351                 goto fail;
2352
2353         ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
2354                 &ha->gid_list_dma, GFP_KERNEL);
2355         if (!ha->gid_list)
2356                 goto fail_free_init_cb;
2357
2358         ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
2359         if (!ha->srb_mempool)
2360                 goto fail_free_gid_list;
2361
2362         /* Get memory for cached NVRAM */
2363         ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
2364         if (!ha->nvram)
2365                 goto fail_free_srb_mempool;
2366
2367         snprintf(name, sizeof(name), "%s_%d", QLA2XXX_DRIVER_NAME,
2368                 ha->pdev->device);
2369         ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2370                 DMA_POOL_SIZE, 8, 0);
2371         if (!ha->s_dma_pool)
2372                 goto fail_free_nvram;
2373
2374         /* Allocate memory for SNS commands */
2375         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2376         /* Get consistent memory allocated for SNS commands */
2377                 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
2378                 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
2379                 if (!ha->sns_cmd)
2380                         goto fail_dma_pool;
2381         } else {
2382         /* Get consistent memory allocated for MS IOCB */
2383                 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2384                         &ha->ms_iocb_dma);
2385                 if (!ha->ms_iocb)
2386                         goto fail_dma_pool;
2387         /* Get consistent memory allocated for CT SNS commands */
2388                 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2389                         sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
2390                 if (!ha->ct_sns)
2391                         goto fail_free_ms_iocb;
2392         }
2393
2394         /* Allocate memory for request ring */
2395         *req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
2396         if (!*req) {
2397                 DEBUG(printk("Unable to allocate memory for req\n"));
2398                 goto fail_req;
2399         }
2400         (*req)->length = req_len;
2401         (*req)->ring = dma_alloc_coherent(&ha->pdev->dev,
2402                 ((*req)->length + 1) * sizeof(request_t),
2403                 &(*req)->dma, GFP_KERNEL);
2404         if (!(*req)->ring) {
2405                 DEBUG(printk("Unable to allocate memory for req_ring\n"));
2406                 goto fail_req_ring;
2407         }
2408         /* Allocate memory for response ring */
2409         *rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
2410         if (!*rsp) {
2411                 qla_printk(KERN_WARNING, ha,
2412                         "Unable to allocate memory for rsp\n");
2413                 goto fail_rsp;
2414         }
2415         (*rsp)->hw = ha;
2416         (*rsp)->length = rsp_len;
2417         (*rsp)->ring = dma_alloc_coherent(&ha->pdev->dev,
2418                 ((*rsp)->length + 1) * sizeof(response_t),
2419                 &(*rsp)->dma, GFP_KERNEL);
2420         if (!(*rsp)->ring) {
2421                 qla_printk(KERN_WARNING, ha,
2422                         "Unable to allocate memory for rsp_ring\n");
2423                 goto fail_rsp_ring;
2424         }
2425         (*req)->rsp = *rsp;
2426         (*rsp)->req = *req;
2427         /* Allocate memory for NVRAM data for vports */
2428         if (ha->nvram_npiv_size) {
2429                 ha->npiv_info = kzalloc(sizeof(struct qla_npiv_entry) *
2430                                         ha->nvram_npiv_size, GFP_KERNEL);
2431                 if (!ha->npiv_info) {
2432                         qla_printk(KERN_WARNING, ha,
2433                                 "Unable to allocate memory for npiv info\n");
2434                         goto fail_npiv_info;
2435                 }
2436         } else
2437                 ha->npiv_info = NULL;
2438
2439         /* Get consistent memory allocated for EX-INIT-CB. */
2440         if (IS_QLA81XX(ha)) {
2441                 ha->ex_init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2442                     &ha->ex_init_cb_dma);
2443                 if (!ha->ex_init_cb)
2444                         goto fail_ex_init_cb;
2445         }
2446
2447         INIT_LIST_HEAD(&ha->vp_list);
2448         return 1;
2449
2450 fail_ex_init_cb:
2451         kfree(ha->npiv_info);
2452 fail_npiv_info:
2453         dma_free_coherent(&ha->pdev->dev, ((*rsp)->length + 1) *
2454                 sizeof(response_t), (*rsp)->ring, (*rsp)->dma);
2455         (*rsp)->ring = NULL;
2456         (*rsp)->dma = 0;
2457 fail_rsp_ring:
2458         kfree(*rsp);
2459 fail_rsp:
2460         dma_free_coherent(&ha->pdev->dev, ((*req)->length + 1) *
2461                 sizeof(request_t), (*req)->ring, (*req)->dma);
2462         (*req)->ring = NULL;
2463         (*req)->dma = 0;
2464 fail_req_ring:
2465         kfree(*req);
2466 fail_req:
2467         dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2468                 ha->ct_sns, ha->ct_sns_dma);
2469         ha->ct_sns = NULL;
2470         ha->ct_sns_dma = 0;
2471 fail_free_ms_iocb:
2472         dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2473         ha->ms_iocb = NULL;
2474         ha->ms_iocb_dma = 0;
2475 fail_dma_pool:
2476         dma_pool_destroy(ha->s_dma_pool);
2477         ha->s_dma_pool = NULL;
2478 fail_free_nvram:
2479         kfree(ha->nvram);
2480         ha->nvram = NULL;
2481 fail_free_srb_mempool:
2482         mempool_destroy(ha->srb_mempool);
2483         ha->srb_mempool = NULL;
2484 fail_free_gid_list:
2485         dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2486         ha->gid_list_dma);
2487         ha->gid_list = NULL;
2488         ha->gid_list_dma = 0;
2489 fail_free_init_cb:
2490         dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
2491         ha->init_cb_dma);
2492         ha->init_cb = NULL;
2493         ha->init_cb_dma = 0;
2494 fail:
2495         DEBUG(printk("%s: Memory allocation failure\n", __func__));
2496         return -ENOMEM;
2497 }
2498
2499 /*
2500 * qla2x00_mem_free
2501 *      Frees all adapter allocated memory.
2502 *
2503 * Input:
2504 *      ha = adapter block pointer.
2505 */
2506 static void
2507 qla2x00_mem_free(struct qla_hw_data *ha)
2508 {
2509         if (ha->srb_mempool)
2510                 mempool_destroy(ha->srb_mempool);
2511
2512         if (ha->fce)
2513                 dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
2514                 ha->fce_dma);
2515
2516         if (ha->fw_dump) {
2517                 if (ha->eft)
2518                         dma_free_coherent(&ha->pdev->dev,
2519                         ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2520                 vfree(ha->fw_dump);
2521         }
2522
2523         if (ha->dcbx_tlv)
2524                 dma_free_coherent(&ha->pdev->dev, DCBX_TLV_DATA_SIZE,
2525                     ha->dcbx_tlv, ha->dcbx_tlv_dma);
2526
2527         if (ha->xgmac_data)
2528                 dma_free_coherent(&ha->pdev->dev, XGMAC_DATA_SIZE,
2529                     ha->xgmac_data, ha->xgmac_data_dma);
2530
2531         if (ha->sns_cmd)
2532                 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2533                 ha->sns_cmd, ha->sns_cmd_dma);
2534
2535         if (ha->ct_sns)
2536                 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2537                 ha->ct_sns, ha->ct_sns_dma);
2538
2539         if (ha->sfp_data)
2540                 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2541
2542         if (ha->edc_data)
2543                 dma_pool_free(ha->s_dma_pool, ha->edc_data, ha->edc_data_dma);
2544
2545         if (ha->ms_iocb)
2546                 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2547
2548         if (ha->ex_init_cb)
2549                 dma_pool_free(ha->s_dma_pool, ha->ex_init_cb, ha->ex_init_cb_dma);
2550
2551         if (ha->s_dma_pool)
2552                 dma_pool_destroy(ha->s_dma_pool);
2553
2554         if (ha->gid_list)
2555                 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2556                 ha->gid_list_dma);
2557
2558         if (ha->init_cb)
2559                 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
2560                 ha->init_cb, ha->init_cb_dma);
2561         vfree(ha->optrom_buffer);
2562         kfree(ha->nvram);
2563         kfree(ha->npiv_info);
2564
2565         ha->srb_mempool = NULL;
2566         ha->eft = NULL;
2567         ha->eft_dma = 0;
2568         ha->sns_cmd = NULL;
2569         ha->sns_cmd_dma = 0;
2570         ha->ct_sns = NULL;
2571         ha->ct_sns_dma = 0;
2572         ha->ms_iocb = NULL;
2573         ha->ms_iocb_dma = 0;
2574         ha->init_cb = NULL;
2575         ha->init_cb_dma = 0;
2576         ha->ex_init_cb = NULL;
2577         ha->ex_init_cb_dma = 0;
2578
2579         ha->s_dma_pool = NULL;
2580
2581         ha->gid_list = NULL;
2582         ha->gid_list_dma = 0;
2583
2584         ha->fw_dump = NULL;
2585         ha->fw_dumped = 0;
2586         ha->fw_dump_reading = 0;
2587 }
2588
2589 struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht,
2590                                                 struct qla_hw_data *ha)
2591 {
2592         struct Scsi_Host *host;
2593         struct scsi_qla_host *vha = NULL;
2594
2595         host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
2596         if (host == NULL) {
2597                 printk(KERN_WARNING
2598                 "qla2xxx: Couldn't allocate host from scsi layer!\n");
2599                 goto fail;
2600         }
2601
2602         /* Clear our data area */
2603         vha = shost_priv(host);
2604         memset(vha, 0, sizeof(scsi_qla_host_t));
2605
2606         vha->host = host;
2607         vha->host_no = host->host_no;
2608         vha->hw = ha;
2609
2610         INIT_LIST_HEAD(&vha->vp_fcports);
2611         INIT_LIST_HEAD(&vha->work_list);
2612         INIT_LIST_HEAD(&vha->list);
2613
2614         spin_lock_init(&vha->work_lock);
2615
2616         sprintf(vha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, vha->host_no);
2617         return vha;
2618
2619 fail:
2620         return vha;
2621 }
2622
2623 static struct qla_work_evt *
2624 qla2x00_alloc_work(struct scsi_qla_host *vha, enum qla_work_type type)
2625 {
2626         struct qla_work_evt *e;
2627
2628         e = kzalloc(sizeof(struct qla_work_evt), GFP_ATOMIC);
2629         if (!e)
2630                 return NULL;
2631
2632         INIT_LIST_HEAD(&e->list);
2633         e->type = type;
2634         e->flags = QLA_EVT_FLAG_FREE;
2635         return e;
2636 }
2637
2638 static int
2639 qla2x00_post_work(struct scsi_qla_host *vha, struct qla_work_evt *e)
2640 {
2641         unsigned long flags;
2642
2643         spin_lock_irqsave(&vha->work_lock, flags);
2644         list_add_tail(&e->list, &vha->work_list);
2645         spin_unlock_irqrestore(&vha->work_lock, flags);
2646         qla2xxx_wake_dpc(vha);
2647
2648         return QLA_SUCCESS;
2649 }
2650
2651 int
2652 qla2x00_post_aen_work(struct scsi_qla_host *vha, enum fc_host_event_code code,
2653     u32 data)
2654 {
2655         struct qla_work_evt *e;
2656
2657         e = qla2x00_alloc_work(vha, QLA_EVT_AEN);
2658         if (!e)
2659                 return QLA_FUNCTION_FAILED;
2660
2661         e->u.aen.code = code;
2662         e->u.aen.data = data;
2663         return qla2x00_post_work(vha, e);
2664 }
2665
2666 int
2667 qla2x00_post_idc_ack_work(struct scsi_qla_host *vha, uint16_t *mb)
2668 {
2669         struct qla_work_evt *e;
2670
2671         e = qla2x00_alloc_work(vha, QLA_EVT_IDC_ACK);
2672         if (!e)
2673                 return QLA_FUNCTION_FAILED;
2674
2675         memcpy(e->u.idc_ack.mb, mb, QLA_IDC_ACK_REGS * sizeof(uint16_t));
2676         return qla2x00_post_work(vha, e);
2677 }
2678
2679 #define qla2x00_post_async_work(name, type)     \
2680 int qla2x00_post_async_##name##_work(           \
2681     struct scsi_qla_host *vha,                  \
2682     fc_port_t *fcport, uint16_t *data)          \
2683 {                                               \
2684         struct qla_work_evt *e;                 \
2685                                                 \
2686         e = qla2x00_alloc_work(vha, type);      \
2687         if (!e)                                 \
2688                 return QLA_FUNCTION_FAILED;     \
2689                                                 \
2690         e->u.logio.fcport = fcport;             \
2691         if (data) {                             \
2692                 e->u.logio.data[0] = data[0];   \
2693                 e->u.logio.data[1] = data[1];   \
2694         }                                       \
2695         return qla2x00_post_work(vha, e);       \
2696 }
2697
2698 qla2x00_post_async_work(login, QLA_EVT_ASYNC_LOGIN);
2699 qla2x00_post_async_work(login_done, QLA_EVT_ASYNC_LOGIN_DONE);
2700 qla2x00_post_async_work(logout, QLA_EVT_ASYNC_LOGOUT);
2701 qla2x00_post_async_work(logout_done, QLA_EVT_ASYNC_LOGOUT_DONE);
2702
2703 int
2704 qla2x00_post_uevent_work(struct scsi_qla_host *vha, u32 code)
2705 {
2706         struct qla_work_evt *e;
2707
2708         e = qla2x00_alloc_work(vha, QLA_EVT_UEVENT);
2709         if (!e)
2710                 return QLA_FUNCTION_FAILED;
2711
2712         e->u.uevent.code = code;
2713         return qla2x00_post_work(vha, e);
2714 }
2715
2716 static void
2717 qla2x00_uevent_emit(struct scsi_qla_host *vha, u32 code)
2718 {
2719         char event_string[40];
2720         char *envp[] = { event_string, NULL };
2721
2722         switch (code) {
2723         case QLA_UEVENT_CODE_FW_DUMP:
2724                 snprintf(event_string, sizeof(event_string), "FW_DUMP=%ld",
2725                     vha->host_no);
2726                 break;
2727         default:
2728                 /* do nothing */
2729                 break;
2730         }
2731         kobject_uevent_env(&vha->hw->pdev->dev.kobj, KOBJ_CHANGE, envp);
2732 }
2733
2734 void
2735 qla2x00_do_work(struct scsi_qla_host *vha)
2736 {
2737         struct qla_work_evt *e, *tmp;
2738         unsigned long flags;
2739         LIST_HEAD(work);
2740
2741         spin_lock_irqsave(&vha->work_lock, flags);
2742         list_splice_init(&vha->work_list, &work);
2743         spin_unlock_irqrestore(&vha->work_lock, flags);
2744
2745         list_for_each_entry_safe(e, tmp, &work, list) {
2746                 list_del_init(&e->list);
2747
2748                 switch (e->type) {
2749                 case QLA_EVT_AEN:
2750                         fc_host_post_event(vha->host, fc_get_event_number(),
2751                             e->u.aen.code, e->u.aen.data);
2752                         break;
2753                 case QLA_EVT_IDC_ACK:
2754                         qla81xx_idc_ack(vha, e->u.idc_ack.mb);
2755                         break;
2756                 case QLA_EVT_ASYNC_LOGIN:
2757                         qla2x00_async_login(vha, e->u.logio.fcport,
2758                             e->u.logio.data);
2759                         break;
2760                 case QLA_EVT_ASYNC_LOGIN_DONE:
2761                         qla2x00_async_login_done(vha, e->u.logio.fcport,
2762                             e->u.logio.data);
2763                         break;
2764                 case QLA_EVT_ASYNC_LOGOUT:
2765                         qla2x00_async_logout(vha, e->u.logio.fcport);
2766                         break;
2767                 case QLA_EVT_ASYNC_LOGOUT_DONE:
2768                         qla2x00_async_logout_done(vha, e->u.logio.fcport,
2769                             e->u.logio.data);
2770                         break;
2771                 case QLA_EVT_UEVENT:
2772                         qla2x00_uevent_emit(vha, e->u.uevent.code);
2773                         break;
2774                 }
2775                 if (e->flags & QLA_EVT_FLAG_FREE)
2776                         kfree(e);
2777         }
2778 }
2779
2780 /* Relogins all the fcports of a vport
2781  * Context: dpc thread
2782  */
2783 void qla2x00_relogin(struct scsi_qla_host *vha)
2784 {
2785         fc_port_t       *fcport;
2786         int status;
2787         uint16_t        next_loopid = 0;
2788         struct qla_hw_data *ha = vha->hw;
2789         uint16_t data[2];
2790
2791         list_for_each_entry(fcport, &vha->vp_fcports, list) {
2792         /*
2793          * If the port is not ONLINE then try to login
2794          * to it if we haven't run out of retries.
2795          */
2796                 if (atomic_read(&fcport->state) !=
2797                         FCS_ONLINE && fcport->login_retry) {
2798
2799                         fcport->login_retry--;
2800                         if (fcport->flags & FCF_FABRIC_DEVICE) {
2801                                 if (fcport->flags & FCF_TAPE_PRESENT)
2802                                         ha->isp_ops->fabric_logout(vha,
2803                                                         fcport->loop_id,
2804                                                         fcport->d_id.b.domain,
2805                                                         fcport->d_id.b.area,
2806                                                         fcport->d_id.b.al_pa);
2807
2808                                 if (IS_ALOGIO_CAPABLE(ha)) {
2809                                         data[0] = 0;
2810                                         data[1] = QLA_LOGIO_LOGIN_RETRIED;
2811                                         status = qla2x00_post_async_login_work(
2812                                             vha, fcport, data);
2813                                         if (status == QLA_SUCCESS)
2814                                                 continue;
2815                                         /* Attempt a retry. */
2816                                         status = 1;
2817                                 } else
2818                                         status = qla2x00_fabric_login(vha,
2819                                             fcport, &next_loopid);
2820                         } else
2821                                 status = qla2x00_local_device_login(vha,
2822                                                                 fcport);
2823
2824                         if (status == QLA_SUCCESS) {
2825                                 fcport->old_loop_id = fcport->loop_id;
2826
2827                                 DEBUG(printk("scsi(%ld): port login OK: logged "
2828                                 "in ID 0x%x\n", vha->host_no, fcport->loop_id));
2829
2830                                 qla2x00_update_fcport(vha, fcport);
2831
2832                         } else if (status == 1) {
2833                                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2834                                 /* retry the login again */
2835                                 DEBUG(printk("scsi(%ld): Retrying"
2836                                 " %d login again loop_id 0x%x\n",
2837                                 vha->host_no, fcport->login_retry,
2838                                                 fcport->loop_id));
2839                         } else {
2840                                 fcport->login_retry = 0;
2841                         }
2842
2843                         if (fcport->login_retry == 0 && status != QLA_SUCCESS)
2844                                 fcport->loop_id = FC_NO_LOOP_ID;
2845                 }
2846                 if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
2847                         break;
2848         }
2849 }
2850
2851 /**************************************************************************
2852 * qla2x00_do_dpc
2853 *   This kernel thread is a task that is schedule by the interrupt handler
2854 *   to perform the background processing for interrupts.
2855 *
2856 * Notes:
2857 * This task always run in the context of a kernel thread.  It
2858 * is kick-off by the driver's detect code and starts up
2859 * up one per adapter. It immediately goes to sleep and waits for
2860 * some fibre event.  When either the interrupt handler or
2861 * the timer routine detects a event it will one of the task
2862 * bits then wake us up.
2863 **************************************************************************/
2864 static int
2865 qla2x00_do_dpc(void *data)
2866 {
2867         int             rval;
2868         scsi_qla_host_t *base_vha;
2869         struct qla_hw_data *ha;
2870
2871         ha = (struct qla_hw_data *)data;
2872         base_vha = pci_get_drvdata(ha->pdev);
2873
2874         set_user_nice(current, -20);
2875
2876         while (!kthread_should_stop()) {
2877                 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2878
2879                 set_current_state(TASK_INTERRUPTIBLE);
2880                 schedule();
2881                 __set_current_state(TASK_RUNNING);
2882
2883                 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2884
2885                 /* Initialization not yet finished. Don't do anything yet. */
2886                 if (!base_vha->flags.init_done)
2887                         continue;
2888
2889                 if (ha->flags.eeh_busy) {
2890                         DEBUG17(qla_printk(KERN_WARNING, ha,
2891                             "qla2x00_do_dpc: dpc_flags: %lx\n",
2892                             base_vha->dpc_flags));
2893                         continue;
2894                 }
2895
2896                 DEBUG3(printk("scsi(%ld): DPC handler\n", base_vha->host_no));
2897
2898                 ha->dpc_active = 1;
2899
2900                 if (ha->flags.mbox_busy) {
2901                         ha->dpc_active = 0;
2902                         continue;
2903                 }
2904
2905                 qla2x00_do_work(base_vha);
2906
2907                 if (test_and_clear_bit(ISP_ABORT_NEEDED,
2908                                                 &base_vha->dpc_flags)) {
2909
2910                         DEBUG(printk("scsi(%ld): dpc: sched "
2911                             "qla2x00_abort_isp ha = %p\n",
2912                             base_vha->host_no, ha));
2913                         if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2914                             &base_vha->dpc_flags))) {
2915
2916                                 if (qla2x00_abort_isp(base_vha)) {
2917                                         /* failed. retry later */
2918                                         set_bit(ISP_ABORT_NEEDED,
2919                                             &base_vha->dpc_flags);
2920                                 }
2921                                 clear_bit(ABORT_ISP_ACTIVE,
2922                                                 &base_vha->dpc_flags);
2923                         }
2924
2925                         DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2926                             base_vha->host_no));
2927                 }
2928
2929                 if (test_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags)) {
2930                         qla2x00_update_fcports(base_vha);
2931                         clear_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
2932                 }
2933
2934                 if (test_and_clear_bit(RESET_MARKER_NEEDED,
2935                                                         &base_vha->dpc_flags) &&
2936                     (!(test_and_set_bit(RESET_ACTIVE, &base_vha->dpc_flags)))) {
2937
2938                         DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2939                             base_vha->host_no));
2940
2941                         qla2x00_rst_aen(base_vha);
2942                         clear_bit(RESET_ACTIVE, &base_vha->dpc_flags);
2943                 }
2944
2945                 /* Retry each device up to login retry count */
2946                 if ((test_and_clear_bit(RELOGIN_NEEDED,
2947                                                 &base_vha->dpc_flags)) &&
2948                     !test_bit(LOOP_RESYNC_NEEDED, &base_vha->dpc_flags) &&
2949                     atomic_read(&base_vha->loop_state) != LOOP_DOWN) {
2950
2951                         DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2952                                         base_vha->host_no));
2953                         qla2x00_relogin(base_vha);
2954
2955                         DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2956                             base_vha->host_no));
2957                 }
2958
2959                 if (test_and_clear_bit(LOOP_RESYNC_NEEDED,
2960                                                         &base_vha->dpc_flags)) {
2961
2962                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2963                                 base_vha->host_no));
2964
2965                         if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2966                             &base_vha->dpc_flags))) {
2967
2968                                 rval = qla2x00_loop_resync(base_vha);
2969
2970                                 clear_bit(LOOP_RESYNC_ACTIVE,
2971                                                 &base_vha->dpc_flags);
2972                         }
2973
2974                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2975                             base_vha->host_no));
2976                 }
2977
2978                 if (test_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags) &&
2979                     atomic_read(&base_vha->loop_state) == LOOP_READY) {
2980                         clear_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags);
2981                         qla2xxx_flash_npiv_conf(base_vha);
2982                 }
2983
2984                 if (!ha->interrupts_on)
2985                         ha->isp_ops->enable_intrs(ha);
2986
2987                 if (test_and_clear_bit(BEACON_BLINK_NEEDED,
2988                                         &base_vha->dpc_flags))
2989                         ha->isp_ops->beacon_blink(base_vha);
2990
2991                 qla2x00_do_dpc_all_vps(base_vha);
2992
2993                 ha->dpc_active = 0;
2994         } /* End of while(1) */
2995
2996         DEBUG(printk("scsi(%ld): DPC handler exiting\n", base_vha->host_no));
2997
2998         /*
2999          * Make sure that nobody tries to wake us up again.
3000          */
3001         ha->dpc_active = 0;
3002
3003         /* Cleanup any residual CTX SRBs. */
3004         qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
3005
3006         return 0;
3007 }
3008
3009 void
3010 qla2xxx_wake_dpc(struct scsi_qla_host *vha)
3011 {
3012         struct qla_hw_data *ha = vha->hw;
3013         struct task_struct *t = ha->dpc_thread;
3014
3015         if (!test_bit(UNLOADING, &vha->dpc_flags) && t)
3016                 wake_up_process(t);
3017 }
3018
3019 /*
3020 *  qla2x00_rst_aen
3021 *      Processes asynchronous reset.
3022 *
3023 * Input:
3024 *      ha  = adapter block pointer.
3025 */
3026 static void
3027 qla2x00_rst_aen(scsi_qla_host_t *vha)
3028 {
3029         if (vha->flags.online && !vha->flags.reset_active &&
3030             !atomic_read(&vha->loop_down_timer) &&
3031             !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) {
3032                 do {
3033                         clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
3034
3035                         /*
3036                          * Issue marker command only when we are going to start
3037                          * the I/O.
3038                          */
3039                         vha->marker_needed = 1;
3040                 } while (!atomic_read(&vha->loop_down_timer) &&
3041                     (test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags)));
3042         }
3043 }
3044
3045 static void
3046 qla2x00_sp_free_dma(srb_t *sp)
3047 {
3048         struct scsi_cmnd *cmd = sp->cmd;
3049
3050         if (sp->flags & SRB_DMA_VALID) {
3051                 scsi_dma_unmap(cmd);
3052                 sp->flags &= ~SRB_DMA_VALID;
3053         }
3054         CMD_SP(cmd) = NULL;
3055 }
3056
3057 void
3058 qla2x00_sp_compl(struct qla_hw_data *ha, srb_t *sp)
3059 {
3060         struct scsi_cmnd *cmd = sp->cmd;
3061
3062         qla2x00_sp_free_dma(sp);
3063
3064         mempool_free(sp, ha->srb_mempool);
3065
3066         cmd->scsi_done(cmd);
3067 }
3068
3069 /**************************************************************************
3070 *   qla2x00_timer
3071 *
3072 * Description:
3073 *   One second timer
3074 *
3075 * Context: Interrupt
3076 ***************************************************************************/
3077 void
3078 qla2x00_timer(scsi_qla_host_t *vha)
3079 {
3080         unsigned long   cpu_flags = 0;
3081         fc_port_t       *fcport;
3082         int             start_dpc = 0;
3083         int             index;
3084         srb_t           *sp;
3085         int             t;
3086         uint16_t        w;
3087         struct qla_hw_data *ha = vha->hw;
3088         struct req_que *req;
3089
3090         /* Hardware read to raise pending EEH errors during mailbox waits. */
3091         if (!pci_channel_offline(ha->pdev))
3092                 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
3093         /*
3094          * Ports - Port down timer.
3095          *
3096          * Whenever, a port is in the LOST state we start decrementing its port
3097          * down timer every second until it reaches zero. Once  it reaches zero
3098          * the port it marked DEAD.
3099          */
3100         t = 0;
3101         list_for_each_entry(fcport, &vha->vp_fcports, list) {
3102                 if (fcport->port_type != FCT_TARGET)
3103                         continue;
3104
3105                 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
3106
3107                         if (atomic_read(&fcport->port_down_timer) == 0)
3108                                 continue;
3109
3110                         if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
3111                                 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
3112
3113                         DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
3114                             "%d remaining\n",
3115                             vha->host_no,
3116                             t, atomic_read(&fcport->port_down_timer)));
3117                 }
3118                 t++;
3119         } /* End of for fcport  */
3120
3121
3122         /* Loop down handler. */
3123         if (atomic_read(&vha->loop_down_timer) > 0 &&
3124             !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
3125                 && vha->flags.online) {
3126
3127                 if (atomic_read(&vha->loop_down_timer) ==
3128                     vha->loop_down_abort_time) {
3129
3130                         DEBUG(printk("scsi(%ld): Loop Down - aborting the "
3131                             "queues before time expire\n",
3132                             vha->host_no));
3133
3134                         if (!IS_QLA2100(ha) && vha->link_down_timeout)
3135                                 atomic_set(&vha->loop_state, LOOP_DEAD);
3136
3137                         /* Schedule an ISP abort to return any tape commands. */
3138                         /* NPIV - scan physical port only */
3139                         if (!vha->vp_idx) {
3140                                 spin_lock_irqsave(&ha->hardware_lock,
3141                                     cpu_flags);
3142                                 req = ha->req_q_map[0];
3143                                 for (index = 1;
3144                                     index < MAX_OUTSTANDING_COMMANDS;
3145                                     index++) {
3146                                         fc_port_t *sfcp;
3147
3148                                         sp = req->outstanding_cmds[index];
3149                                         if (!sp)
3150                                                 continue;
3151                                         if (sp->ctx)
3152                                                 continue;
3153                                         sfcp = sp->fcport;
3154                                         if (!(sfcp->flags & FCF_TAPE_PRESENT))
3155                                                 continue;
3156
3157                                         set_bit(ISP_ABORT_NEEDED,
3158                                                         &vha->dpc_flags);
3159                                         break;
3160                                 }
3161                                 spin_unlock_irqrestore(&ha->hardware_lock,
3162                                                                 cpu_flags);
3163                         }
3164                         start_dpc++;
3165                 }
3166
3167                 /* if the loop has been down for 4 minutes, reinit adapter */
3168                 if (atomic_dec_and_test(&vha->loop_down_timer) != 0) {
3169                         if (!(vha->device_flags & DFLG_NO_CABLE)) {
3170                                 DEBUG(printk("scsi(%ld): Loop down - "
3171                                     "aborting ISP.\n",
3172                                     vha->host_no));
3173                                 qla_printk(KERN_WARNING, ha,
3174                                     "Loop down - aborting ISP.\n");
3175
3176                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3177                         }
3178                 }
3179                 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
3180                     vha->host_no,
3181                     atomic_read(&vha->loop_down_timer)));
3182         }
3183
3184         /* Check if beacon LED needs to be blinked */
3185         if (ha->beacon_blink_led == 1) {
3186                 set_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags);
3187                 start_dpc++;
3188         }
3189
3190         /* Process any deferred work. */
3191         if (!list_empty(&vha->work_list))
3192                 start_dpc++;
3193
3194         /* Schedule the DPC routine if needed */
3195         if ((test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
3196             test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) ||
3197             test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags) ||
3198             start_dpc ||
3199             test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) ||
3200             test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags) ||
3201             test_bit(VP_DPC_NEEDED, &vha->dpc_flags) ||
3202             test_bit(RELOGIN_NEEDED, &vha->dpc_flags)))
3203                 qla2xxx_wake_dpc(vha);
3204
3205         qla2x00_restart_timer(vha, WATCH_INTERVAL);
3206 }
3207
3208 /* Firmware interface routines. */
3209
3210 #define FW_BLOBS        7
3211 #define FW_ISP21XX      0
3212 #define FW_ISP22XX      1
3213 #define FW_ISP2300      2
3214 #define FW_ISP2322      3
3215 #define FW_ISP24XX      4
3216 #define FW_ISP25XX      5
3217 #define FW_ISP81XX      6
3218
3219 #define FW_FILE_ISP21XX "ql2100_fw.bin"
3220 #define FW_FILE_ISP22XX "ql2200_fw.bin"
3221 #define FW_FILE_ISP2300 "ql2300_fw.bin"
3222 #define FW_FILE_ISP2322 "ql2322_fw.bin"
3223 #define FW_FILE_ISP24XX "ql2400_fw.bin"
3224 #define FW_FILE_ISP25XX "ql2500_fw.bin"
3225 #define FW_FILE_ISP81XX "ql8100_fw.bin"
3226
3227 static DEFINE_MUTEX(qla_fw_lock);
3228
3229 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
3230         { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
3231         { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
3232         { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
3233         { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
3234         { .name = FW_FILE_ISP24XX, },
3235         { .name = FW_FILE_ISP25XX, },
3236         { .name = FW_FILE_ISP81XX, },
3237 };
3238
3239 struct fw_blob *
3240 qla2x00_request_firmware(scsi_qla_host_t *vha)
3241 {
3242         struct qla_hw_data *ha = vha->hw;
3243         struct fw_blob *blob;
3244
3245         blob = NULL;
3246         if (IS_QLA2100(ha)) {
3247                 blob = &qla_fw_blobs[FW_ISP21XX];
3248         } else if (IS_QLA2200(ha)) {
3249                 blob = &qla_fw_blobs[FW_ISP22XX];
3250         } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
3251                 blob = &qla_fw_blobs[FW_ISP2300];
3252         } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
3253                 blob = &qla_fw_blobs[FW_ISP2322];
3254         } else if (IS_QLA24XX_TYPE(ha)) {
3255                 blob = &qla_fw_blobs[FW_ISP24XX];
3256         } else if (IS_QLA25XX(ha)) {
3257                 blob = &qla_fw_blobs[FW_ISP25XX];
3258         } else if (IS_QLA81XX(ha)) {
3259                 blob = &qla_fw_blobs[FW_ISP81XX];
3260         }
3261
3262         mutex_lock(&qla_fw_lock);
3263         if (blob->fw)
3264                 goto out;
3265
3266         if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
3267                 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
3268                     "(%s).\n", vha->host_no, blob->name));
3269                 blob->fw = NULL;
3270                 blob = NULL;
3271                 goto out;
3272         }
3273
3274 out:
3275         mutex_unlock(&qla_fw_lock);
3276         return blob;
3277 }
3278
3279 static void
3280 qla2x00_release_firmware(void)
3281 {
3282         int idx;
3283
3284         mutex_lock(&qla_fw_lock);
3285         for (idx = 0; idx < FW_BLOBS; idx++)
3286                 if (qla_fw_blobs[idx].fw)
3287                         release_firmware(qla_fw_blobs[idx].fw);
3288         mutex_unlock(&qla_fw_lock);
3289 }
3290
3291 static pci_ers_result_t
3292 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
3293 {
3294         scsi_qla_host_t *vha = pci_get_drvdata(pdev);
3295         struct qla_hw_data *ha = vha->hw;
3296
3297         DEBUG2(qla_printk(KERN_WARNING, ha, "error_detected:state %x\n",
3298             state));
3299
3300         switch (state) {
3301         case pci_channel_io_normal:
3302                 ha->flags.eeh_busy = 0;
3303                 return PCI_ERS_RESULT_CAN_RECOVER;
3304         case pci_channel_io_frozen:
3305                 ha->flags.eeh_busy = 1;
3306                 pci_disable_device(pdev);
3307                 return PCI_ERS_RESULT_NEED_RESET;
3308         case pci_channel_io_perm_failure:
3309                 ha->flags.pci_channel_io_perm_failure = 1;
3310                 qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
3311                 return PCI_ERS_RESULT_DISCONNECT;
3312         }
3313         return PCI_ERS_RESULT_NEED_RESET;
3314 }
3315
3316 static pci_ers_result_t
3317 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
3318 {
3319         int risc_paused = 0;
3320         uint32_t stat;
3321         unsigned long flags;
3322         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3323         struct qla_hw_data *ha = base_vha->hw;
3324         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3325         struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
3326
3327         spin_lock_irqsave(&ha->hardware_lock, flags);
3328         if (IS_QLA2100(ha) || IS_QLA2200(ha)){
3329                 stat = RD_REG_DWORD(&reg->hccr);
3330                 if (stat & HCCR_RISC_PAUSE)
3331                         risc_paused = 1;
3332         } else if (IS_QLA23XX(ha)) {
3333                 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
3334                 if (stat & HSR_RISC_PAUSED)
3335                         risc_paused = 1;
3336         } else if (IS_FWI2_CAPABLE(ha)) {
3337                 stat = RD_REG_DWORD(&reg24->host_status);
3338                 if (stat & HSRX_RISC_PAUSED)
3339                         risc_paused = 1;
3340         }
3341         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3342
3343         if (risc_paused) {
3344                 qla_printk(KERN_INFO, ha, "RISC paused -- mmio_enabled, "
3345                     "Dumping firmware!\n");
3346                 ha->isp_ops->fw_dump(base_vha, 0);
3347
3348                 return PCI_ERS_RESULT_NEED_RESET;
3349         } else
3350                 return PCI_ERS_RESULT_RECOVERED;
3351 }
3352
3353 static pci_ers_result_t
3354 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
3355 {
3356         pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
3357         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3358         struct qla_hw_data *ha = base_vha->hw;
3359         int rc;
3360
3361         DEBUG17(qla_printk(KERN_WARNING, ha, "slot_reset\n"));
3362
3363         if (ha->mem_only)
3364                 rc = pci_enable_device_mem(pdev);
3365         else
3366                 rc = pci_enable_device(pdev);
3367
3368         if (rc) {
3369                 qla_printk(KERN_WARNING, ha,
3370                     "Can't re-enable PCI device after reset.\n");
3371                 return ret;
3372         }
3373
3374         if (ha->isp_ops->pci_config(base_vha))
3375                 return ret;
3376
3377 #ifdef QL_DEBUG_LEVEL_17
3378         {
3379                 uint8_t b;
3380                 uint32_t i;
3381
3382                 printk("slot_reset_1: ");
3383                 for (i = 0; i < 256; i++) {
3384                         pci_read_config_byte(ha->pdev, i, &b);
3385                         printk("%s%02x", (i%16) ? " " : "\n", b);
3386                 }
3387                 printk("\n");
3388         }
3389 #endif
3390         set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
3391         if (qla2x00_abort_isp(base_vha) == QLA_SUCCESS)
3392                 ret =  PCI_ERS_RESULT_RECOVERED;
3393         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
3394
3395         DEBUG17(qla_printk(KERN_WARNING, ha,
3396             "slot_reset-return:ret=%x\n", ret));
3397
3398         return ret;
3399 }
3400
3401 static void
3402 qla2xxx_pci_resume(struct pci_dev *pdev)
3403 {
3404         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3405         struct qla_hw_data *ha = base_vha->hw;
3406         int ret;
3407
3408         DEBUG17(qla_printk(KERN_WARNING, ha, "pci_resume\n"));
3409
3410         ret = qla2x00_wait_for_hba_online(base_vha);
3411         if (ret != QLA_SUCCESS) {
3412                 qla_printk(KERN_ERR, ha,
3413                     "the device failed to resume I/O "
3414                     "from slot/link_reset");
3415         }
3416
3417         ha->flags.eeh_busy = 0;
3418
3419         pci_cleanup_aer_uncorrect_error_status(pdev);
3420 }
3421
3422 static struct pci_error_handlers qla2xxx_err_handler = {
3423         .error_detected = qla2xxx_pci_error_detected,
3424         .mmio_enabled = qla2xxx_pci_mmio_enabled,
3425         .slot_reset = qla2xxx_pci_slot_reset,
3426         .resume = qla2xxx_pci_resume,
3427 };
3428
3429 static struct pci_device_id qla2xxx_pci_tbl[] = {
3430         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
3431         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
3432         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
3433         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
3434         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
3435         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
3436         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
3437         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
3438         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
3439         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) },
3440         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
3441         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
3442         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
3443         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8001) },
3444         { 0 },
3445 };
3446 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
3447
3448 static struct pci_driver qla2xxx_pci_driver = {
3449         .name           = QLA2XXX_DRIVER_NAME,
3450         .driver         = {
3451                 .owner          = THIS_MODULE,
3452         },
3453         .id_table       = qla2xxx_pci_tbl,
3454         .probe          = qla2x00_probe_one,
3455         .remove         = qla2x00_remove_one,
3456         .err_handler    = &qla2xxx_err_handler,
3457 };
3458
3459 /**
3460  * qla2x00_module_init - Module initialization.
3461  **/
3462 static int __init
3463 qla2x00_module_init(void)
3464 {
3465         int ret = 0;
3466
3467         /* Allocate cache for SRBs. */
3468         srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
3469             SLAB_HWCACHE_ALIGN, NULL);
3470         if (srb_cachep == NULL) {
3471                 printk(KERN_ERR
3472                     "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
3473                 return -ENOMEM;
3474         }
3475
3476         /* Derive version string. */
3477         strcpy(qla2x00_version_str, QLA2XXX_VERSION);
3478         if (ql2xextended_error_logging)
3479                 strcat(qla2x00_version_str, "-debug");
3480
3481         qla2xxx_transport_template =
3482             fc_attach_transport(&qla2xxx_transport_functions);
3483         if (!qla2xxx_transport_template) {
3484                 kmem_cache_destroy(srb_cachep);
3485                 return -ENODEV;
3486         }
3487         qla2xxx_transport_vport_template =
3488             fc_attach_transport(&qla2xxx_transport_vport_functions);
3489         if (!qla2xxx_transport_vport_template) {
3490                 kmem_cache_destroy(srb_cachep);
3491                 fc_release_transport(qla2xxx_transport_template);
3492                 return -ENODEV;
3493         }
3494
3495         printk(KERN_INFO "QLogic Fibre Channel HBA Driver: %s\n",
3496             qla2x00_version_str);
3497         ret = pci_register_driver(&qla2xxx_pci_driver);
3498         if (ret) {
3499                 kmem_cache_destroy(srb_cachep);
3500                 fc_release_transport(qla2xxx_transport_template);
3501                 fc_release_transport(qla2xxx_transport_vport_template);
3502         }
3503         return ret;
3504 }
3505
3506 /**
3507  * qla2x00_module_exit - Module cleanup.
3508  **/
3509 static void __exit
3510 qla2x00_module_exit(void)
3511 {
3512         pci_unregister_driver(&qla2xxx_pci_driver);
3513         qla2x00_release_firmware();
3514         kmem_cache_destroy(srb_cachep);
3515         fc_release_transport(qla2xxx_transport_template);
3516         fc_release_transport(qla2xxx_transport_vport_template);
3517 }
3518
3519 module_init(qla2x00_module_init);
3520 module_exit(qla2x00_module_exit);
3521
3522 MODULE_AUTHOR("QLogic Corporation");
3523 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
3524 MODULE_LICENSE("GPL");
3525 MODULE_VERSION(QLA2XXX_VERSION);
3526 MODULE_FIRMWARE(FW_FILE_ISP21XX);
3527 MODULE_FIRMWARE(FW_FILE_ISP22XX);
3528 MODULE_FIRMWARE(FW_FILE_ISP2300);
3529 MODULE_FIRMWARE(FW_FILE_ISP2322);
3530 MODULE_FIRMWARE(FW_FILE_ISP24XX);
3531 MODULE_FIRMWARE(FW_FILE_ISP25XX);
3532 MODULE_FIRMWARE(FW_FILE_ISP81XX);