drivers/scsi/qla2xxx/qla_os.c

   1 /*
   2  * QLogic Fibre Channel HBA Driver
   3  * Copyright (c)  2003-2010 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 #include <linux/slab.h>
  16
  17 #include <scsi/scsi_tcq.h>
  18 #include <scsi/scsicam.h>
  19 #include <scsi/scsi_transport.h>
  20 #include <scsi/scsi_transport_fc.h>
  21
  22 /*
  23  * Driver version
  24  */
  25 char qla2x00_version_str[40];
  26
  27 static int apidev_major;
  28
  29 /*
  30  * SRB allocation cache
  31  */
  32 static struct kmem_cache *srb_cachep;
  33
  34 /*
  35  * CT6 CTX allocation cache
  36  */
  37 static struct kmem_cache *ctx_cachep;
  38
  39 int ql2xlogintimeout = 20;
  40 module_param(ql2xlogintimeout, int, S_IRUGO);
  41 MODULE_PARM_DESC(ql2xlogintimeout,
  42                 "Login timeout value in seconds.");
  43
  44 int qlport_down_retry;
  45 module_param(qlport_down_retry, int, S_IRUGO);
  46 MODULE_PARM_DESC(qlport_down_retry,
  47                 "Maximum number of command retries to a port that returns "
  48                 "a PORT-DOWN status.");
  49
  50 int ql2xplogiabsentdevice;
  51 module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
  52 MODULE_PARM_DESC(ql2xplogiabsentdevice,
  53                 "Option to enable PLOGI to devices that are not present after "
  54                 "a Fabric scan.  This is needed for several broken switches. "
  55                 "Default is 0 - no PLOGI. 1 - perfom PLOGI.");
  56
  57 int ql2xloginretrycount = 0;
  58 module_param(ql2xloginretrycount, int, S_IRUGO);
  59 MODULE_PARM_DESC(ql2xloginretrycount,
  60                 "Specify an alternate value for the NVRAM login retry count.");
  61
  62 int ql2xallocfwdump = 1;
  63 module_param(ql2xallocfwdump, int, S_IRUGO);
  64 MODULE_PARM_DESC(ql2xallocfwdump,
  65                 "Option to enable allocation of memory for a firmware dump "
  66                 "during HBA initialization.  Memory allocation requirements "
  67                 "vary by ISP type.  Default is 1 - allocate memory.");
  68
  69 int ql2xextended_error_logging;
  70 module_param(ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
  71 MODULE_PARM_DESC(ql2xextended_error_logging,
  72                 "Option to enable extended error logging, "
  73                 "Default is 0 - no logging. 1 - log errors.");
  74
  75 int ql2xshiftctondsd = 6;
  76 module_param(ql2xshiftctondsd, int, S_IRUGO);
  77 MODULE_PARM_DESC(ql2xshiftctondsd,
  78                 "Set to control shifting of command type processing "
  79                 "based on total number of SG elements.");
  80
  81 static void qla2x00_free_device(scsi_qla_host_t *);
  82
  83 int ql2xfdmienable=1;
  84 module_param(ql2xfdmienable, int, S_IRUGO);
  85 MODULE_PARM_DESC(ql2xfdmienable,
  86                 "Enables FDMI registrations. "
  87                 "0 - no FDMI. Default is 1 - perform FDMI.");
  88
  89 #define MAX_Q_DEPTH    32
  90 static int ql2xmaxqdepth = MAX_Q_DEPTH;
  91 module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
  92 MODULE_PARM_DESC(ql2xmaxqdepth,
  93                 "Maximum queue depth to report for target devices.");
  94
  95 /* Do not change the value of this after module load */
  96 int ql2xenabledif = 1;
  97 module_param(ql2xenabledif, int, S_IRUGO|S_IWUSR);
  98 MODULE_PARM_DESC(ql2xenabledif,
  99                 " Enable T10-CRC-DIF "
 100                 " Default is 0 - No DIF Support. 1 - Enable it");
 101
 102 int ql2xenablehba_err_chk;
 103 module_param(ql2xenablehba_err_chk, int, S_IRUGO|S_IWUSR);
 104 MODULE_PARM_DESC(ql2xenablehba_err_chk,
 105                 " Enable T10-CRC-DIF Error isolation by HBA"
 106                 " Default is 0 - Error isolation disabled, 1 - Enable it");
 107
 108 int ql2xiidmaenable=1;
 109 module_param(ql2xiidmaenable, int, S_IRUGO);
 110 MODULE_PARM_DESC(ql2xiidmaenable,
 111                 "Enables iIDMA settings "
 112                 "Default is 1 - perform iIDMA. 0 - no iIDMA.");
 113
 114 int ql2xmaxqueues = 1;
 115 module_param(ql2xmaxqueues, int, S_IRUGO);
 116 MODULE_PARM_DESC(ql2xmaxqueues,
 117                 "Enables MQ settings "
 118                 "Default is 1 for single queue. Set it to number "
 119                 "of queues in MQ mode.");
 120
 121 int ql2xmultique_tag;
 122 module_param(ql2xmultique_tag, int, S_IRUGO);
 123 MODULE_PARM_DESC(ql2xmultique_tag,
 124                 "Enables CPU affinity settings for the driver "
 125                 "Default is 0 for no affinity of request and response IO. "
 126                 "Set it to 1 to turn on the cpu affinity.");
 127
 128 int ql2xfwloadbin;
 129 module_param(ql2xfwloadbin, int, S_IRUGO);
 130 MODULE_PARM_DESC(ql2xfwloadbin,
 131                 "Option to specify location from which to load ISP firmware:\n"
 132                 " 2 -- load firmware via the request_firmware() (hotplug)\n"
 133                 "      interface.\n"
 134                 " 1 -- load firmware from flash.\n"
 135                 " 0 -- use default semantics.\n");
 136
 137 int ql2xetsenable;
 138 module_param(ql2xetsenable, int, S_IRUGO);
 139 MODULE_PARM_DESC(ql2xetsenable,
 140                 "Enables firmware ETS burst."
 141                 "Default is 0 - skip ETS enablement.");
 142
 143 int ql2xdbwr = 1;
 144 module_param(ql2xdbwr, int, S_IRUGO);
 145 MODULE_PARM_DESC(ql2xdbwr,
 146         "Option to specify scheme for request queue posting\n"
 147         " 0 -- Regular doorbell.\n"
 148         " 1 -- CAMRAM doorbell (faster).\n");
 149
 150 int ql2xtargetreset = 1;
 151 module_param(ql2xtargetreset, int, S_IRUGO);
 152 MODULE_PARM_DESC(ql2xtargetreset,
 153                  "Enable target reset."
 154                  "Default is 1 - use hw defaults.");
 155
 156 int ql2xgffidenable;
 157 module_param(ql2xgffidenable, int, S_IRUGO);
 158 MODULE_PARM_DESC(ql2xgffidenable,
 159                 "Enables GFF_ID checks of port type. "
 160                 "Default is 0 - Do not use GFF_ID information.");
 161
 162 int ql2xasynctmfenable;
 163 module_param(ql2xasynctmfenable, int, S_IRUGO);
 164 MODULE_PARM_DESC(ql2xasynctmfenable,
 165                 "Enables issue of TM IOCBs asynchronously via IOCB mechanism"
 166                 "Default is 0 - Issue TM IOCBs via mailbox mechanism.");
 167 /*
 168  * SCSI host template entry points
 169  */
 170 static int qla2xxx_slave_configure(struct scsi_device * device);
 171 static int qla2xxx_slave_alloc(struct scsi_device *);
 172 static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
 173 static void qla2xxx_scan_start(struct Scsi_Host *);
 174 static void qla2xxx_slave_destroy(struct scsi_device *);
 175 static int qla2xxx_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmd);
 176 static int qla2xxx_eh_abort(struct scsi_cmnd *);
 177 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
 178 static int qla2xxx_eh_target_reset(struct scsi_cmnd *);
 179 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
 180 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
 181
 182 static int qla2x00_change_queue_depth(struct scsi_device *, int, int);
 183 static int qla2x00_change_queue_type(struct scsi_device *, int);
 184
 185 struct scsi_host_template qla2xxx_driver_template = {
 186         .module                 = THIS_MODULE,
 187         .name                   = QLA2XXX_DRIVER_NAME,
 188         .queuecommand           = qla2xxx_queuecommand,
 189
 190         .eh_abort_handler       = qla2xxx_eh_abort,
 191         .eh_device_reset_handler = qla2xxx_eh_device_reset,
 192         .eh_target_reset_handler = qla2xxx_eh_target_reset,
 193         .eh_bus_reset_handler   = qla2xxx_eh_bus_reset,
 194         .eh_host_reset_handler  = qla2xxx_eh_host_reset,
 195
 196         .slave_configure        = qla2xxx_slave_configure,
 197
 198         .slave_alloc            = qla2xxx_slave_alloc,
 199         .slave_destroy          = qla2xxx_slave_destroy,
 200         .scan_finished          = qla2xxx_scan_finished,
 201         .scan_start             = qla2xxx_scan_start,
 202         .change_queue_depth     = qla2x00_change_queue_depth,
 203         .change_queue_type      = qla2x00_change_queue_type,
 204         .this_id                = -1,
 205         .cmd_per_lun            = 3,
 206         .use_clustering         = ENABLE_CLUSTERING,
 207         .sg_tablesize           = SG_ALL,
 208
 209         .max_sectors            = 0xFFFF,
 210         .shost_attrs            = qla2x00_host_attrs,
 211 };
 212
 213 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
 214 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
 215
 216 /* TODO Convert to inlines
 217  *
 218  * Timer routines
 219  */
 220
 221 __inline__ void
 222 qla2x00_start_timer(scsi_qla_host_t *vha, void *func, unsigned long interval)
 223 {
 224         init_timer(&vha->timer);
 225         vha->timer.expires = jiffies + interval * HZ;
 226         vha->timer.data = (unsigned long)vha;
 227         vha->timer.function = (void (*)(unsigned long))func;
 228         add_timer(&vha->timer);
 229         vha->timer_active = 1;
 230 }
 231
 232 static inline void
 233 qla2x00_restart_timer(scsi_qla_host_t *vha, unsigned long interval)
 234 {
 235         /* Currently used for 82XX only. */
 236         if (vha->device_flags & DFLG_DEV_FAILED)
 237                 return;
 238
 239         mod_timer(&vha->timer, jiffies + interval * HZ);
 240 }
 241
 242 static __inline__ void
 243 qla2x00_stop_timer(scsi_qla_host_t *vha)
 244 {
 245         del_timer_sync(&vha->timer);
 246         vha->timer_active = 0;
 247 }
 248
 249 static int qla2x00_do_dpc(void *data);
 250
 251 static void qla2x00_rst_aen(scsi_qla_host_t *);
 252
 253 static int qla2x00_mem_alloc(struct qla_hw_data *, uint16_t, uint16_t,
 254         struct req_que **, struct rsp_que **);
 255 static void qla2x00_free_fw_dump(struct qla_hw_data *);
 256 static void qla2x00_mem_free(struct qla_hw_data *);
 257 static void qla2x00_sp_free_dma(srb_t *);
 258
 259 /* -------------------------------------------------------------------------- */
 260 static int qla2x00_alloc_queues(struct qla_hw_data *ha)
 261 {
 262         ha->req_q_map = kzalloc(sizeof(struct req_que *) * ha->max_req_queues,
 263                                 GFP_KERNEL);
 264         if (!ha->req_q_map) {
 265                 qla_printk(KERN_WARNING, ha,
 266                         "Unable to allocate memory for request queue ptrs\n");
 267                 goto fail_req_map;
 268         }
 269
 270         ha->rsp_q_map = kzalloc(sizeof(struct rsp_que *) * ha->max_rsp_queues,
 271                                 GFP_KERNEL);
 272         if (!ha->rsp_q_map) {
 273                 qla_printk(KERN_WARNING, ha,
 274                         "Unable to allocate memory for response queue ptrs\n");
 275                 goto fail_rsp_map;
 276         }
 277         set_bit(0, ha->rsp_qid_map);
 278         set_bit(0, ha->req_qid_map);
 279         return 1;
 280
 281 fail_rsp_map:
 282         kfree(ha->req_q_map);
 283         ha->req_q_map = NULL;
 284 fail_req_map:
 285         return -ENOMEM;
 286 }
 287
 288 static void qla2x00_free_req_que(struct qla_hw_data *ha, struct req_que *req)
 289 {
 290         if (req && req->ring)
 291                 dma_free_coherent(&ha->pdev->dev,
 292                 (req->length + 1) * sizeof(request_t),
 293                 req->ring, req->dma);
 294
 295         kfree(req);
 296         req = NULL;
 297 }
 298
 299 static void qla2x00_free_rsp_que(struct qla_hw_data *ha, struct rsp_que *rsp)
 300 {
 301         if (rsp && rsp->ring)
 302                 dma_free_coherent(&ha->pdev->dev,
 303                 (rsp->length + 1) * sizeof(response_t),
 304                 rsp->ring, rsp->dma);
 305
 306         kfree(rsp);
 307         rsp = NULL;
 308 }
 309
 310 static void qla2x00_free_queues(struct qla_hw_data *ha)
 311 {
 312         struct req_que *req;
 313         struct rsp_que *rsp;
 314         int cnt;
 315
 316         for (cnt = 0; cnt < ha->max_req_queues; cnt++) {
 317                 req = ha->req_q_map[cnt];
 318                 qla2x00_free_req_que(ha, req);
 319         }
 320         kfree(ha->req_q_map);
 321         ha->req_q_map = NULL;
 322
 323         for (cnt = 0; cnt < ha->max_rsp_queues; cnt++) {
 324                 rsp = ha->rsp_q_map[cnt];
 325                 qla2x00_free_rsp_que(ha, rsp);
 326         }
 327         kfree(ha->rsp_q_map);
 328         ha->rsp_q_map = NULL;
 329 }
 330
 331 static int qla25xx_setup_mode(struct scsi_qla_host *vha)
 332 {
 333         uint16_t options = 0;
 334         int ques, req, ret;
 335         struct qla_hw_data *ha = vha->hw;
 336
 337         if (!(ha->fw_attributes & BIT_6)) {
 338                 qla_printk(KERN_INFO, ha,
 339                         "Firmware is not multi-queue capable\n");
 340                 goto fail;
 341         }
 342         if (ql2xmultique_tag) {
 343                 /* create a request queue for IO */
 344                 options |= BIT_7;
 345                 req = qla25xx_create_req_que(ha, options, 0, 0, -1,
 346                         QLA_DEFAULT_QUE_QOS);
 347                 if (!req) {
 348                         qla_printk(KERN_WARNING, ha,
 349                                 "Can't create request queue\n");
 350                         goto fail;
 351                 }
 352                 ha->wq = create_workqueue("qla2xxx_wq");
 353                 vha->req = ha->req_q_map[req];
 354                 options |= BIT_1;
 355                 for (ques = 1; ques < ha->max_rsp_queues; ques++) {
 356                         ret = qla25xx_create_rsp_que(ha, options, 0, 0, req);
 357                         if (!ret) {
 358                                 qla_printk(KERN_WARNING, ha,
 359                                         "Response Queue create failed\n");
 360                                 goto fail2;
 361                         }
 362                 }
 363                 ha->flags.cpu_affinity_enabled = 1;
 364
 365                 DEBUG2(qla_printk(KERN_INFO, ha,
 366                         "CPU affinity mode enabled, no. of response"
 367                         " queues:%d, no. of request queues:%d\n",
 368                         ha->max_rsp_queues, ha->max_req_queues));
 369         }
 370         return 0;
 371 fail2:
 372         qla25xx_delete_queues(vha);
 373         destroy_workqueue(ha->wq);
 374         ha->wq = NULL;
 375 fail:
 376         ha->mqenable = 0;
 377         kfree(ha->req_q_map);
 378         kfree(ha->rsp_q_map);
 379         ha->max_req_queues = ha->max_rsp_queues = 1;
 380         return 1;
 381 }
 382
 383 static char *
 384 qla2x00_pci_info_str(struct scsi_qla_host *vha, char *str)
 385 {
 386         struct qla_hw_data *ha = vha->hw;
 387         static char *pci_bus_modes[] = {
 388                 "33", "66", "100", "133",
 389         };
 390         uint16_t pci_bus;
 391
 392         strcpy(str, "PCI");
 393         pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
 394         if (pci_bus) {
 395                 strcat(str, "-X (");
 396                 strcat(str, pci_bus_modes[pci_bus]);
 397         } else {
 398                 pci_bus = (ha->pci_attr & BIT_8) >> 8;
 399                 strcat(str, " (");
 400                 strcat(str, pci_bus_modes[pci_bus]);
 401         }
 402         strcat(str, " MHz)");
 403
 404         return (str);
 405 }
 406
 407 static char *
 408 qla24xx_pci_info_str(struct scsi_qla_host *vha, char *str)
 409 {
 410         static char *pci_bus_modes[] = { "33", "66", "100", "133", };
 411         struct qla_hw_data *ha = vha->hw;
 412         uint32_t pci_bus;
 413         int pcie_reg;
 414
 415         pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
 416         if (pcie_reg) {
 417                 char lwstr[6];
 418                 uint16_t pcie_lstat, lspeed, lwidth;
 419
 420                 pcie_reg += 0x12;
 421                 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
 422                 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
 423                 lwidth = (pcie_lstat &
 424                     (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
 425
 426                 strcpy(str, "PCIe (");
 427                 if (lspeed == 1)
 428                         strcat(str, "2.5GT/s ");
 429                 else if (lspeed == 2)
 430                         strcat(str, "5.0GT/s ");
 431                 else
 432                         strcat(str, "<unknown> ");
 433                 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
 434                 strcat(str, lwstr);
 435
 436                 return str;
 437         }
 438
 439         strcpy(str, "PCI");
 440         pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
 441         if (pci_bus == 0 || pci_bus == 8) {
 442                 strcat(str, " (");
 443                 strcat(str, pci_bus_modes[pci_bus >> 3]);
 444         } else {
 445                 strcat(str, "-X ");
 446                 if (pci_bus & BIT_2)
 447                         strcat(str, "Mode 2");
 448                 else
 449                         strcat(str, "Mode 1");
 450                 strcat(str, " (");
 451                 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
 452         }
 453         strcat(str, " MHz)");
 454
 455         return str;
 456 }
 457
 458 static char *
 459 qla2x00_fw_version_str(struct scsi_qla_host *vha, char *str)
 460 {
 461         char un_str[10];
 462         struct qla_hw_data *ha = vha->hw;
 463
 464         sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
 465             ha->fw_minor_version,
 466             ha->fw_subminor_version);
 467
 468         if (ha->fw_attributes & BIT_9) {
 469                 strcat(str, "FLX");
 470                 return (str);
 471         }
 472
 473         switch (ha->fw_attributes & 0xFF) {
 474         case 0x7:
 475                 strcat(str, "EF");
 476                 break;
 477         case 0x17:
 478                 strcat(str, "TP");
 479                 break;
 480         case 0x37:
 481                 strcat(str, "IP");
 482                 break;
 483         case 0x77:
 484                 strcat(str, "VI");
 485                 break;
 486         default:
 487                 sprintf(un_str, "(%x)", ha->fw_attributes);
 488                 strcat(str, un_str);
 489                 break;
 490         }
 491         if (ha->fw_attributes & 0x100)
 492                 strcat(str, "X");
 493
 494         return (str);
 495 }
 496
 497 static char *
 498 qla24xx_fw_version_str(struct scsi_qla_host *vha, char *str)
 499 {
 500         struct qla_hw_data *ha = vha->hw;
 501
 502         sprintf(str, "%d.%02d.%02d (%x)", ha->fw_major_version,
 503             ha->fw_minor_version, ha->fw_subminor_version, ha->fw_attributes);
 504         return str;
 505 }
 506
 507 static inline srb_t *
 508 qla2x00_get_new_sp(scsi_qla_host_t *vha, fc_port_t *fcport,
 509     struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 510 {
 511         srb_t *sp;
 512         struct qla_hw_data *ha = vha->hw;
 513
 514         sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
 515         if (!sp)
 516                 return sp;
 517
 518         atomic_set(&sp->ref_count, 1);
 519         sp->fcport = fcport;
 520         sp->cmd = cmd;
 521         sp->flags = 0;
 522         CMD_SP(cmd) = (void *)sp;
 523         cmd->scsi_done = done;
 524         sp->ctx = NULL;
 525
 526         return sp;
 527 }
 528
 529 static int
 530 qla2xxx_queuecommand_lck(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 531 {
 532         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 533         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 534         struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
 535         struct qla_hw_data *ha = vha->hw;
 536         struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
 537         srb_t *sp;
 538         int rval;
 539
 540         spin_unlock_irq(vha->host->host_lock);
 541         if (ha->flags.eeh_busy) {
 542                 if (ha->flags.pci_channel_io_perm_failure)
 543                         cmd->result = DID_NO_CONNECT << 16;
 544                 else
 545                         cmd->result = DID_REQUEUE << 16;
 546                 goto qc24_fail_command;
 547         }
 548
 549         rval = fc_remote_port_chkready(rport);
 550         if (rval) {
 551                 cmd->result = rval;
 552                 goto qc24_fail_command;
 553         }
 554
 555         if (!vha->flags.difdix_supported &&
 556                 scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) {
 557                         DEBUG2(qla_printk(KERN_ERR, ha,
 558                             "DIF Cap Not Reg, fail DIF capable cmd's:%x\n",
 559                             cmd->cmnd[0]));
 560                         cmd->result = DID_NO_CONNECT << 16;
 561                         goto qc24_fail_command;
 562         }
 563         if (atomic_read(&fcport->state) != FCS_ONLINE) {
 564                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
 565                         atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
 566                         cmd->result = DID_NO_CONNECT << 16;
 567                         goto qc24_fail_command;
 568                 }
 569                 goto qc24_target_busy;
 570         }
 571
 572         sp = qla2x00_get_new_sp(base_vha, fcport, cmd, done);
 573         if (!sp)
 574                 goto qc24_host_busy_lock;
 575
 576         rval = ha->isp_ops->start_scsi(sp);
 577         if (rval != QLA_SUCCESS)
 578                 goto qc24_host_busy_free_sp;
 579
 580         spin_lock_irq(vha->host->host_lock);
 581
 582         return 0;
 583
 584 qc24_host_busy_free_sp:
 585         qla2x00_sp_free_dma(sp);
 586         mempool_free(sp, ha->srb_mempool);
 587
 588 qc24_host_busy_lock:
 589         spin_lock_irq(vha->host->host_lock);
 590         return SCSI_MLQUEUE_HOST_BUSY;
 591
 592 qc24_target_busy:
 593         spin_lock_irq(vha->host->host_lock);
 594         return SCSI_MLQUEUE_TARGET_BUSY;
 595
 596 qc24_fail_command:
 597         spin_lock_irq(vha->host->host_lock);
 598         done(cmd);
 599
 600         return 0;
 601 }
 602
 603 static DEF_SCSI_QCMD(qla2xxx_queuecommand)
 604
 605
 606 /*
 607  * qla2x00_eh_wait_on_command
 608  *    Waits for the command to be returned by the Firmware for some
 609  *    max time.
 610  *
 611  * Input:
 612  *    cmd = Scsi Command to wait on.
 613  *
 614  * Return:
 615  *    Not Found : 0
 616  *    Found : 1
 617  */
 618 static int
 619 qla2x00_eh_wait_on_command(struct scsi_cmnd *cmd)
 620 {
 621 #define ABORT_POLLING_PERIOD    1000
 622 #define ABORT_WAIT_ITER         ((10 * 1000) / (ABORT_POLLING_PERIOD))
 623         unsigned long wait_iter = ABORT_WAIT_ITER;
 624         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 625         struct qla_hw_data *ha = vha->hw;
 626         int ret = QLA_SUCCESS;
 627
 628         if (unlikely(pci_channel_offline(ha->pdev)) || ha->flags.eeh_busy) {
 629                 DEBUG17(qla_printk(KERN_WARNING, ha, "return:eh_wait\n"));
 630                 return ret;
 631         }
 632
 633         while (CMD_SP(cmd) && wait_iter--) {
 634                 msleep(ABORT_POLLING_PERIOD);
 635         }
 636         if (CMD_SP(cmd))
 637                 ret = QLA_FUNCTION_FAILED;
 638
 639         return ret;
 640 }
 641
 642 /*
 643  * qla2x00_wait_for_hba_online
 644  *    Wait till the HBA is online after going through
 645  *    <= MAX_RETRIES_OF_ISP_ABORT  or
 646  *    finally HBA is disabled ie marked offline
 647  *
 648  * Input:
 649  *     ha - pointer to host adapter structure
 650  *
 651  * Note:
 652  *    Does context switching-Release SPIN_LOCK
 653  *    (if any) before calling this routine.
 654  *
 655  * Return:
 656  *    Success (Adapter is online) : 0
 657  *    Failed  (Adapter is offline/disabled) : 1
 658  */
 659 int
 660 qla2x00_wait_for_hba_online(scsi_qla_host_t *vha)
 661 {
 662         int             return_status;
 663         unsigned long   wait_online;
 664         struct qla_hw_data *ha = vha->hw;
 665         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 666
 667         wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 668         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 669             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 670             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 671             ha->dpc_active) && time_before(jiffies, wait_online)) {
 672
 673                 msleep(1000);
 674         }
 675         if (base_vha->flags.online)
 676                 return_status = QLA_SUCCESS;
 677         else
 678                 return_status = QLA_FUNCTION_FAILED;
 679
 680         return (return_status);
 681 }
 682
 683 /*
 684  * qla2x00_wait_for_reset_ready
 685  *    Wait till the HBA is online after going through
 686  *    <= MAX_RETRIES_OF_ISP_ABORT  or
 687  *    finally HBA is disabled ie marked offline or flash
 688  *    operations are in progress.
 689  *
 690  * Input:
 691  *     ha - pointer to host adapter structure
 692  *
 693  * Note:
 694  *    Does context switching-Release SPIN_LOCK
 695  *    (if any) before calling this routine.
 696  *
 697  * Return:
 698  *    Success (Adapter is online/no flash ops) : 0
 699  *    Failed  (Adapter is offline/disabled/flash ops in progress) : 1
 700  */
 701 static int
 702 qla2x00_wait_for_reset_ready(scsi_qla_host_t *vha)
 703 {
 704         int             return_status;
 705         unsigned long   wait_online;
 706         struct qla_hw_data *ha = vha->hw;
 707         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 708
 709         wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 710         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 711             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 712             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 713             ha->optrom_state != QLA_SWAITING ||
 714             ha->dpc_active) && time_before(jiffies, wait_online))
 715                 msleep(1000);
 716
 717         if (base_vha->flags.online &&  ha->optrom_state == QLA_SWAITING)
 718                 return_status = QLA_SUCCESS;
 719         else
 720                 return_status = QLA_FUNCTION_FAILED;
 721
 722         DEBUG2(printk("%s return_status=%d\n", __func__, return_status));
 723
 724         return return_status;
 725 }
 726
 727 int
 728 qla2x00_wait_for_chip_reset(scsi_qla_host_t *vha)
 729 {
 730         int             return_status;
 731         unsigned long   wait_reset;
 732         struct qla_hw_data *ha = vha->hw;
 733         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 734
 735         wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 736         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 737             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 738             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 739             ha->dpc_active) && time_before(jiffies, wait_reset)) {
 740
 741                 msleep(1000);
 742
 743                 if (!test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags) &&
 744                     ha->flags.chip_reset_done)
 745                         break;
 746         }
 747         if (ha->flags.chip_reset_done)
 748                 return_status = QLA_SUCCESS;
 749         else
 750                 return_status = QLA_FUNCTION_FAILED;
 751
 752         return return_status;
 753 }
 754
 755 /*
 756  * qla2x00_wait_for_loop_ready
 757  *    Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
 758  *    to be in LOOP_READY state.
 759  * Input:
 760  *     ha - pointer to host adapter structure
 761  *
 762  * Note:
 763  *    Does context switching-Release SPIN_LOCK
 764  *    (if any) before calling this routine.
 765  *
 766  *
 767  * Return:
 768  *    Success (LOOP_READY) : 0
 769  *    Failed  (LOOP_NOT_READY) : 1
 770  */
 771 static inline int
 772 qla2x00_wait_for_loop_ready(scsi_qla_host_t *vha)
 773 {
 774         int      return_status = QLA_SUCCESS;
 775         unsigned long loop_timeout ;
 776         struct qla_hw_data *ha = vha->hw;
 777         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 778
 779         /* wait for 5 min at the max for loop to be ready */
 780         loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 781
 782         while ((!atomic_read(&base_vha->loop_down_timer) &&
 783             atomic_read(&base_vha->loop_state) == LOOP_DOWN) ||
 784             atomic_read(&base_vha->loop_state) != LOOP_READY) {
 785                 if (atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
 786                         return_status = QLA_FUNCTION_FAILED;
 787                         break;
 788                 }
 789                 msleep(1000);
 790                 if (time_after_eq(jiffies, loop_timeout)) {
 791                         return_status = QLA_FUNCTION_FAILED;
 792                         break;
 793                 }
 794         }
 795         return (return_status);
 796 }
 797
 798 static void
 799 sp_get(struct srb *sp)
 800 {
 801         atomic_inc(&sp->ref_count);
 802 }
 803
 804 /**************************************************************************
 805 * qla2xxx_eh_abort
 806 *
 807 * Description:
 808 *    The abort function will abort the specified command.
 809 *
 810 * Input:
 811 *    cmd = Linux SCSI command packet to be aborted.
 812 *
 813 * Returns:
 814 *    Either SUCCESS or FAILED.
 815 *
 816 * Note:
 817 *    Only return FAILED if command not returned by firmware.
 818 **************************************************************************/
 819 static int
 820 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
 821 {
 822         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 823         srb_t *sp;
 824         int ret = SUCCESS;
 825         unsigned int id, lun;
 826         unsigned long flags;
 827         int wait = 0;
 828         struct qla_hw_data *ha = vha->hw;
 829
 830         fc_block_scsi_eh(cmd);
 831
 832         if (!CMD_SP(cmd))
 833                 return SUCCESS;
 834
 835         id = cmd->device->id;
 836         lun = cmd->device->lun;
 837
 838         spin_lock_irqsave(&ha->hardware_lock, flags);
 839         sp = (srb_t *) CMD_SP(cmd);
 840         if (!sp) {
 841                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 842                 return SUCCESS;
 843         }
 844
 845         DEBUG2(printk("%s(%ld): aborting sp %p from RISC.",
 846             __func__, vha->host_no, sp));
 847
 848         /* Get a reference to the sp and drop the lock.*/
 849         sp_get(sp);
 850
 851         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 852         if (ha->isp_ops->abort_command(sp)) {
 853                 DEBUG2(printk("%s(%ld): abort_command "
 854                 "mbx failed.\n", __func__, vha->host_no));
 855                 ret = FAILED;
 856         } else {
 857                 DEBUG3(printk("%s(%ld): abort_command "
 858                 "mbx success.\n", __func__, vha->host_no));
 859                 wait = 1;
 860         }
 861         qla2x00_sp_compl(ha, sp);
 862
 863         /* Wait for the command to be returned. */
 864         if (wait) {
 865                 if (qla2x00_eh_wait_on_command(cmd) != QLA_SUCCESS) {
 866                         qla_printk(KERN_ERR, ha,
 867                             "scsi(%ld:%d:%d): Abort handler timed out -- %x.\n",
 868                             vha->host_no, id, lun, ret);
 869                         ret = FAILED;
 870                 }
 871         }
 872
 873         qla_printk(KERN_INFO, ha,
 874             "scsi(%ld:%d:%d): Abort command issued -- %d %x.\n",
 875             vha->host_no, id, lun, wait, ret);
 876
 877         return ret;
 878 }
 879
 880 int
 881 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *vha, unsigned int t,
 882         unsigned int l, enum nexus_wait_type type)
 883 {
 884         int cnt, match, status;
 885         unsigned long flags;
 886         struct qla_hw_data *ha = vha->hw;
 887         struct req_que *req;
 888         srb_t *sp;
 889
 890         status = QLA_SUCCESS;
 891
 892         spin_lock_irqsave(&ha->hardware_lock, flags);
 893         req = vha->req;
 894         for (cnt = 1; status == QLA_SUCCESS &&
 895                 cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
 896                 sp = req->outstanding_cmds[cnt];
 897                 if (!sp)
 898                         continue;
 899                 if ((sp->ctx) && !IS_PROT_IO(sp))
 900                         continue;
 901                 if (vha->vp_idx != sp->fcport->vha->vp_idx)
 902                         continue;
 903                 match = 0;
 904                 switch (type) {
 905                 case WAIT_HOST:
 906                         match = 1;
 907                         break;
 908                 case WAIT_TARGET:
 909                         match = sp->cmd->device->id == t;
 910                         break;
 911                 case WAIT_LUN:
 912                         match = (sp->cmd->device->id == t &&
 913                                 sp->cmd->device->lun == l);
 914                         break;
 915                 }
 916                 if (!match)
 917                         continue;
 918
 919                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 920                 status = qla2x00_eh_wait_on_command(sp->cmd);
 921                 spin_lock_irqsave(&ha->hardware_lock, flags);
 922         }
 923         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 924
 925         return status;
 926 }
 927
 928 static char *reset_errors[] = {
 929         "HBA not online",
 930         "HBA not ready",
 931         "Task management failed",
 932         "Waiting for command completions",
 933 };
 934
 935 static int
 936 __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
 937     struct scsi_cmnd *cmd, int (*do_reset)(struct fc_port *, unsigned int, int))
 938 {
 939         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 940         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 941         int err;
 942
 943         fc_block_scsi_eh(cmd);
 944
 945         if (!fcport)
 946                 return FAILED;
 947
 948         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET ISSUED.\n",
 949             vha->host_no, cmd->device->id, cmd->device->lun, name);
 950
 951         err = 0;
 952         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
 953                 goto eh_reset_failed;
 954         err = 1;
 955         if (qla2x00_wait_for_loop_ready(vha) != QLA_SUCCESS)
 956                 goto eh_reset_failed;
 957         err = 2;
 958         if (do_reset(fcport, cmd->device->lun, cmd->request->cpu + 1)
 959                 != QLA_SUCCESS)
 960                 goto eh_reset_failed;
 961         err = 3;
 962         if (qla2x00_eh_wait_for_pending_commands(vha, cmd->device->id,
 963             cmd->device->lun, type) != QLA_SUCCESS)
 964                 goto eh_reset_failed;
 965
 966         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET SUCCEEDED.\n",
 967             vha->host_no, cmd->device->id, cmd->device->lun, name);
 968
 969         return SUCCESS;
 970
 971 eh_reset_failed:
 972         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET FAILED: %s.\n"
 973             , vha->host_no, cmd->device->id, cmd->device->lun, name,
 974             reset_errors[err]);
 975         return FAILED;
 976 }
 977
 978 static int
 979 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
 980 {
 981         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 982         struct qla_hw_data *ha = vha->hw;
 983
 984         return __qla2xxx_eh_generic_reset("DEVICE", WAIT_LUN, cmd,
 985             ha->isp_ops->lun_reset);
 986 }
 987
 988 static int
 989 qla2xxx_eh_target_reset(struct scsi_cmnd *cmd)
 990 {
 991         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 992         struct qla_hw_data *ha = vha->hw;
 993
 994         return __qla2xxx_eh_generic_reset("TARGET", WAIT_TARGET, cmd,
 995             ha->isp_ops->target_reset);
 996 }
 997
 998 /**************************************************************************
 999 * qla2xxx_eh_bus_reset
1000 *
1001 * Description:
1002 *    The bus reset function will reset the bus and abort any executing
1003 *    commands.
1004 *
1005 * Input:
1006 *    cmd = Linux SCSI command packet of the command that cause the
1007 *          bus reset.
1008 *
1009 * Returns:
1010 *    SUCCESS/FAILURE (defined as macro in scsi.h).
1011 *
1012 **************************************************************************/
1013 static int
1014 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
1015 {
1016         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1017         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1018         int ret = FAILED;
1019         unsigned int id, lun;
1020
1021         fc_block_scsi_eh(cmd);
1022
1023         id = cmd->device->id;
1024         lun = cmd->device->lun;
1025
1026         if (!fcport)
1027                 return ret;
1028
1029         qla_printk(KERN_INFO, vha->hw,
1030             "scsi(%ld:%d:%d): BUS RESET ISSUED.\n", vha->host_no, id, lun);
1031
1032         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1033                 DEBUG2(printk("%s failed:board disabled\n",__func__));
1034                 goto eh_bus_reset_done;
1035         }
1036
1037         if (qla2x00_wait_for_loop_ready(vha) == QLA_SUCCESS) {
1038                 if (qla2x00_loop_reset(vha) == QLA_SUCCESS)
1039                         ret = SUCCESS;
1040         }
1041         if (ret == FAILED)
1042                 goto eh_bus_reset_done;
1043
1044         /* Flush outstanding commands. */
1045         if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST) !=
1046             QLA_SUCCESS)
1047                 ret = FAILED;
1048
1049 eh_bus_reset_done:
1050         qla_printk(KERN_INFO, vha->hw, "%s: reset %s\n", __func__,
1051             (ret == FAILED) ? "failed" : "succeded");
1052
1053         return ret;
1054 }
1055
1056 /**************************************************************************
1057 * qla2xxx_eh_host_reset
1058 *
1059 * Description:
1060 *    The reset function will reset the Adapter.
1061 *
1062 * Input:
1063 *      cmd = Linux SCSI command packet of the command that cause the
1064 *            adapter reset.
1065 *
1066 * Returns:
1067 *      Either SUCCESS or FAILED.
1068 *
1069 * Note:
1070 **************************************************************************/
1071 static int
1072 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
1073 {
1074         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1075         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1076         struct qla_hw_data *ha = vha->hw;
1077         int ret = FAILED;
1078         unsigned int id, lun;
1079         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1080
1081         fc_block_scsi_eh(cmd);
1082
1083         id = cmd->device->id;
1084         lun = cmd->device->lun;
1085
1086         if (!fcport)
1087                 return ret;
1088
1089         qla_printk(KERN_INFO, ha,
1090             "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", vha->host_no, id, lun);
1091
1092         if (qla2x00_wait_for_reset_ready(vha) != QLA_SUCCESS)
1093                 goto eh_host_reset_lock;
1094
1095         /*
1096          * Fixme-may be dpc thread is active and processing
1097          * loop_resync,so wait a while for it to
1098          * be completed and then issue big hammer.Otherwise
1099          * it may cause I/O failure as big hammer marks the
1100          * devices as lost kicking of the port_down_timer
1101          * while dpc is stuck for the mailbox to complete.
1102          */
1103         qla2x00_wait_for_loop_ready(vha);
1104         if (vha != base_vha) {
1105                 if (qla2x00_vp_abort_isp(vha))
1106                         goto eh_host_reset_lock;
1107         } else {
1108                 if (IS_QLA82XX(vha->hw)) {
1109                         if (!qla82xx_fcoe_ctx_reset(vha)) {
1110                                 /* Ctx reset success */
1111                                 ret = SUCCESS;
1112                                 goto eh_host_reset_lock;
1113                         }
1114                         /* fall thru if ctx reset failed */
1115                 }
1116                 if (ha->wq)
1117                         flush_workqueue(ha->wq);
1118
1119                 set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1120                 if (ha->isp_ops->abort_isp(base_vha)) {
1121                         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1122                         /* failed. schedule dpc to try */
1123                         set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags);
1124
1125                         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
1126                                 goto eh_host_reset_lock;
1127                 }
1128                 clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1129         }
1130
1131         /* Waiting for command to be returned to OS.*/
1132         if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST) ==
1133                 QLA_SUCCESS)
1134                 ret = SUCCESS;
1135
1136 eh_host_reset_lock:
1137         qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
1138             (ret == FAILED) ? "failed" : "succeded");
1139
1140         return ret;
1141 }
1142
1143 /*
1144 * qla2x00_loop_reset
1145 *      Issue loop reset.
1146 *
1147 * Input:
1148 *      ha = adapter block pointer.
1149 *
1150 * Returns:
1151 *      0 = success
1152 */
1153 int
1154 qla2x00_loop_reset(scsi_qla_host_t *vha)
1155 {
1156         int ret;
1157         struct fc_port *fcport;
1158         struct qla_hw_data *ha = vha->hw;
1159
1160         if (ql2xtargetreset == 1 && ha->flags.enable_target_reset) {
1161                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
1162                         if (fcport->port_type != FCT_TARGET)
1163                                 continue;
1164
1165                         ret = ha->isp_ops->target_reset(fcport, 0, 0);
1166                         if (ret != QLA_SUCCESS) {
1167                                 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1168                                     "target_reset=%d d_id=%x.\n", __func__,
1169                                     vha->host_no, ret, fcport->d_id.b24));
1170                         }
1171                 }
1172         }
1173
1174         if (ha->flags.enable_lip_full_login && !IS_QLA8XXX_TYPE(ha)) {
1175                 ret = qla2x00_full_login_lip(vha);
1176                 if (ret != QLA_SUCCESS) {
1177                         DEBUG2_3(printk("%s(%ld): failed: "
1178                             "full_login_lip=%d.\n", __func__, vha->host_no,
1179                             ret));
1180                 }
1181                 atomic_set(&vha->loop_state, LOOP_DOWN);
1182                 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1183                 qla2x00_mark_all_devices_lost(vha, 0);
1184                 qla2x00_wait_for_loop_ready(vha);
1185         }
1186
1187         if (ha->flags.enable_lip_reset) {
1188                 ret = qla2x00_lip_reset(vha);
1189                 if (ret != QLA_SUCCESS) {
1190                         DEBUG2_3(printk("%s(%ld): failed: "
1191                             "lip_reset=%d.\n", __func__, vha->host_no, ret));
1192                 } else
1193                         qla2x00_wait_for_loop_ready(vha);
1194         }
1195
1196         /* Issue marker command only when we are going to start the I/O */
1197         vha->marker_needed = 1;
1198
1199         return QLA_SUCCESS;
1200 }
1201
1202 void
1203 qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res)
1204 {
1205         int que, cnt;
1206         unsigned long flags;
1207         srb_t *sp;
1208         struct srb_ctx *ctx;
1209         struct qla_hw_data *ha = vha->hw;
1210         struct req_que *req;
1211
1212         spin_lock_irqsave(&ha->hardware_lock, flags);
1213         for (que = 0; que < ha->max_req_queues; que++) {
1214                 req = ha->req_q_map[que];
1215                 if (!req)
1216                         continue;
1217                 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
1218                         sp = req->outstanding_cmds[cnt];
1219                         if (sp) {
1220                                 req->outstanding_cmds[cnt] = NULL;
1221                                 if (!sp->ctx ||
1222                                         (sp->flags & SRB_FCP_CMND_DMA_VALID) ||
1223                                         IS_PROT_IO(sp)) {
1224                                         sp->cmd->result = res;
1225                                         qla2x00_sp_compl(ha, sp);
1226                                 } else {
1227                                         ctx = sp->ctx;
1228                                         if (ctx->type == SRB_LOGIN_CMD ||
1229                                             ctx->type == SRB_LOGOUT_CMD) {
1230                                                 ctx->u.iocb_cmd->free(sp);
1231                                         } else {
1232                                                 struct fc_bsg_job *bsg_job =
1233                                                     ctx->u.bsg_job;
1234                                                 if (bsg_job->request->msgcode
1235                                                     == FC_BSG_HST_CT)
1236                                                         kfree(sp->fcport);
1237                                                 bsg_job->req->errors = 0;
1238                                                 bsg_job->reply->result = res;
1239                                                 bsg_job->job_done(bsg_job);
1240                                                 kfree(sp->ctx);
1241                                                 mempool_free(sp,
1242                                                         ha->srb_mempool);
1243                                         }
1244                                 }
1245                         }
1246                 }
1247         }
1248         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1249 }
1250
1251 static int
1252 qla2xxx_slave_alloc(struct scsi_device *sdev)
1253 {
1254         struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1255
1256         if (!rport || fc_remote_port_chkready(rport))
1257                 return -ENXIO;
1258
1259         sdev->hostdata = *(fc_port_t **)rport->dd_data;
1260
1261         return 0;
1262 }
1263
1264 static int
1265 qla2xxx_slave_configure(struct scsi_device *sdev)
1266 {
1267         scsi_qla_host_t *vha = shost_priv(sdev->host);
1268         struct req_que *req = vha->req;
1269
1270         if (sdev->tagged_supported)
1271                 scsi_activate_tcq(sdev, req->max_q_depth);
1272         else
1273                 scsi_deactivate_tcq(sdev, req->max_q_depth);
1274         return 0;
1275 }
1276
1277 static void
1278 qla2xxx_slave_destroy(struct scsi_device *sdev)
1279 {
1280         sdev->hostdata = NULL;
1281 }
1282
1283 static void qla2x00_handle_queue_full(struct scsi_device *sdev, int qdepth)
1284 {
1285         fc_port_t *fcport = (struct fc_port *) sdev->hostdata;
1286
1287         if (!scsi_track_queue_full(sdev, qdepth))
1288                 return;
1289
1290         DEBUG2(qla_printk(KERN_INFO, fcport->vha->hw,
1291                 "scsi(%ld:%d:%d:%d): Queue depth adjusted-down to %d.\n",
1292                 fcport->vha->host_no, sdev->channel, sdev->id, sdev->lun,
1293                 sdev->queue_depth));
1294 }
1295
1296 static void qla2x00_adjust_sdev_qdepth_up(struct scsi_device *sdev, int qdepth)
1297 {
1298         fc_port_t *fcport = sdev->hostdata;
1299         struct scsi_qla_host *vha = fcport->vha;
1300         struct qla_hw_data *ha = vha->hw;
1301         struct req_que *req = NULL;
1302
1303         req = vha->req;
1304         if (!req)
1305                 return;
1306
1307         if (req->max_q_depth <= sdev->queue_depth || req->max_q_depth < qdepth)
1308                 return;
1309
1310         if (sdev->ordered_tags)
1311                 scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, qdepth);
1312         else
1313                 scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, qdepth);
1314
1315         DEBUG2(qla_printk(KERN_INFO, ha,
1316                "scsi(%ld:%d:%d:%d): Queue depth adjusted-up to %d.\n",
1317                fcport->vha->host_no, sdev->channel, sdev->id, sdev->lun,
1318                sdev->queue_depth));
1319 }
1320
1321 static int
1322 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
1323 {
1324         switch (reason) {
1325         case SCSI_QDEPTH_DEFAULT:
1326                 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1327                 break;
1328         case SCSI_QDEPTH_QFULL:
1329                 qla2x00_handle_queue_full(sdev, qdepth);
1330                 break;
1331         case SCSI_QDEPTH_RAMP_UP:
1332                 qla2x00_adjust_sdev_qdepth_up(sdev, qdepth);
1333                 break;
1334         default:
1335                 return -EOPNOTSUPP;
1336         }
1337
1338         return sdev->queue_depth;
1339 }
1340
1341 static int
1342 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1343 {
1344         if (sdev->tagged_supported) {
1345                 scsi_set_tag_type(sdev, tag_type);
1346                 if (tag_type)
1347                         scsi_activate_tcq(sdev, sdev->queue_depth);
1348                 else
1349                         scsi_deactivate_tcq(sdev, sdev->queue_depth);
1350         } else
1351                 tag_type = 0;
1352
1353         return tag_type;
1354 }
1355
1356 /**
1357  * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1358  * @ha: HA context
1359  *
1360  * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1361  * supported addressing method.
1362  */
1363 static void
1364 qla2x00_config_dma_addressing(struct qla_hw_data *ha)
1365 {
1366         /* Assume a 32bit DMA mask. */
1367         ha->flags.enable_64bit_addressing = 0;
1368
1369         if (!dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(64))) {
1370                 /* Any upper-dword bits set? */
1371                 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1372                     !pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
1373                         /* Ok, a 64bit DMA mask is applicable. */
1374                         ha->flags.enable_64bit_addressing = 1;
1375                         ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1376                         ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1377                         return;
1378                 }
1379         }
1380
1381         dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(32));
1382         pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(32));
1383 }
1384
1385 static void
1386 qla2x00_enable_intrs(struct qla_hw_data *ha)
1387 {
1388         unsigned long flags = 0;
1389         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1390
1391         spin_lock_irqsave(&ha->hardware_lock, flags);
1392         ha->interrupts_on = 1;
1393         /* enable risc and host interrupts */
1394         WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1395         RD_REG_WORD(&reg->ictrl);
1396         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1397
1398 }
1399
1400 static void
1401 qla2x00_disable_intrs(struct qla_hw_data *ha)
1402 {
1403         unsigned long flags = 0;
1404         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1405
1406         spin_lock_irqsave(&ha->hardware_lock, flags);
1407         ha->interrupts_on = 0;
1408         /* disable risc and host interrupts */
1409         WRT_REG_WORD(&reg->ictrl, 0);
1410         RD_REG_WORD(&reg->ictrl);
1411         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1412 }
1413
1414 static void
1415 qla24xx_enable_intrs(struct qla_hw_data *ha)
1416 {
1417         unsigned long flags = 0;
1418         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1419
1420         spin_lock_irqsave(&ha->hardware_lock, flags);
1421         ha->interrupts_on = 1;
1422         WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1423         RD_REG_DWORD(&reg->ictrl);
1424         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1425 }
1426
1427 static void
1428 qla24xx_disable_intrs(struct qla_hw_data *ha)
1429 {
1430         unsigned long flags = 0;
1431         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1432
1433         if (IS_NOPOLLING_TYPE(ha))
1434                 return;
1435         spin_lock_irqsave(&ha->hardware_lock, flags);
1436         ha->interrupts_on = 0;
1437         WRT_REG_DWORD(&reg->ictrl, 0);
1438         RD_REG_DWORD(&reg->ictrl);
1439         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1440 }
1441
1442 static struct isp_operations qla2100_isp_ops = {
1443         .pci_config             = qla2100_pci_config,
1444         .reset_chip             = qla2x00_reset_chip,
1445         .chip_diag              = qla2x00_chip_diag,
1446         .config_rings           = qla2x00_config_rings,
1447         .reset_adapter          = qla2x00_reset_adapter,
1448         .nvram_config           = qla2x00_nvram_config,
1449         .update_fw_options      = qla2x00_update_fw_options,
1450         .load_risc              = qla2x00_load_risc,
1451         .pci_info_str           = qla2x00_pci_info_str,
1452         .fw_version_str         = qla2x00_fw_version_str,
1453         .intr_handler           = qla2100_intr_handler,
1454         .enable_intrs           = qla2x00_enable_intrs,
1455         .disable_intrs          = qla2x00_disable_intrs,
1456         .abort_command          = qla2x00_abort_command,
1457         .target_reset           = qla2x00_abort_target,
1458         .lun_reset              = qla2x00_lun_reset,
1459         .fabric_login           = qla2x00_login_fabric,
1460         .fabric_logout          = qla2x00_fabric_logout,
1461         .calc_req_entries       = qla2x00_calc_iocbs_32,
1462         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1463         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1464         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1465         .read_nvram             = qla2x00_read_nvram_data,
1466         .write_nvram            = qla2x00_write_nvram_data,
1467         .fw_dump                = qla2100_fw_dump,
1468         .beacon_on              = NULL,
1469         .beacon_off             = NULL,
1470         .beacon_blink           = NULL,
1471         .read_optrom            = qla2x00_read_optrom_data,
1472         .write_optrom           = qla2x00_write_optrom_data,
1473         .get_flash_version      = qla2x00_get_flash_version,
1474         .start_scsi             = qla2x00_start_scsi,
1475         .abort_isp              = qla2x00_abort_isp,
1476 };
1477
1478 static struct isp_operations qla2300_isp_ops = {
1479         .pci_config             = qla2300_pci_config,
1480         .reset_chip             = qla2x00_reset_chip,
1481         .chip_diag              = qla2x00_chip_diag,
1482         .config_rings           = qla2x00_config_rings,
1483         .reset_adapter          = qla2x00_reset_adapter,
1484         .nvram_config           = qla2x00_nvram_config,
1485         .update_fw_options      = qla2x00_update_fw_options,
1486         .load_risc              = qla2x00_load_risc,
1487         .pci_info_str           = qla2x00_pci_info_str,
1488         .fw_version_str         = qla2x00_fw_version_str,
1489         .intr_handler           = qla2300_intr_handler,
1490         .enable_intrs           = qla2x00_enable_intrs,
1491         .disable_intrs          = qla2x00_disable_intrs,
1492         .abort_command          = qla2x00_abort_command,
1493         .target_reset           = qla2x00_abort_target,
1494         .lun_reset              = qla2x00_lun_reset,
1495         .fabric_login           = qla2x00_login_fabric,
1496         .fabric_logout          = qla2x00_fabric_logout,
1497         .calc_req_entries       = qla2x00_calc_iocbs_32,
1498         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1499         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1500         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1501         .read_nvram             = qla2x00_read_nvram_data,
1502         .write_nvram            = qla2x00_write_nvram_data,
1503         .fw_dump                = qla2300_fw_dump,
1504         .beacon_on              = qla2x00_beacon_on,
1505         .beacon_off             = qla2x00_beacon_off,
1506         .beacon_blink           = qla2x00_beacon_blink,
1507         .read_optrom            = qla2x00_read_optrom_data,
1508         .write_optrom           = qla2x00_write_optrom_data,
1509         .get_flash_version      = qla2x00_get_flash_version,
1510         .start_scsi             = qla2x00_start_scsi,
1511         .abort_isp              = qla2x00_abort_isp,
1512 };
1513
1514 static struct isp_operations qla24xx_isp_ops = {
1515         .pci_config             = qla24xx_pci_config,
1516         .reset_chip             = qla24xx_reset_chip,
1517         .chip_diag              = qla24xx_chip_diag,
1518         .config_rings           = qla24xx_config_rings,
1519         .reset_adapter          = qla24xx_reset_adapter,
1520         .nvram_config           = qla24xx_nvram_config,
1521         .update_fw_options      = qla24xx_update_fw_options,
1522         .load_risc              = qla24xx_load_risc,
1523         .pci_info_str           = qla24xx_pci_info_str,
1524         .fw_version_str         = qla24xx_fw_version_str,
1525         .intr_handler           = qla24xx_intr_handler,
1526         .enable_intrs           = qla24xx_enable_intrs,
1527         .disable_intrs          = qla24xx_disable_intrs,
1528         .abort_command          = qla24xx_abort_command,
1529         .target_reset           = qla24xx_abort_target,
1530         .lun_reset              = qla24xx_lun_reset,
1531         .fabric_login           = qla24xx_login_fabric,
1532         .fabric_logout          = qla24xx_fabric_logout,
1533         .calc_req_entries       = NULL,
1534         .build_iocbs            = NULL,
1535         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1536         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1537         .read_nvram             = qla24xx_read_nvram_data,
1538         .write_nvram            = qla24xx_write_nvram_data,
1539         .fw_dump                = qla24xx_fw_dump,
1540         .beacon_on              = qla24xx_beacon_on,
1541         .beacon_off             = qla24xx_beacon_off,
1542         .beacon_blink           = qla24xx_beacon_blink,
1543         .read_optrom            = qla24xx_read_optrom_data,
1544         .write_optrom           = qla24xx_write_optrom_data,
1545         .get_flash_version      = qla24xx_get_flash_version,
1546         .start_scsi             = qla24xx_start_scsi,
1547         .abort_isp              = qla2x00_abort_isp,
1548 };
1549
1550 static struct isp_operations qla25xx_isp_ops = {
1551         .pci_config             = qla25xx_pci_config,
1552         .reset_chip             = qla24xx_reset_chip,
1553         .chip_diag              = qla24xx_chip_diag,
1554         .config_rings           = qla24xx_config_rings,
1555         .reset_adapter          = qla24xx_reset_adapter,
1556         .nvram_config           = qla24xx_nvram_config,
1557         .update_fw_options      = qla24xx_update_fw_options,
1558         .load_risc              = qla24xx_load_risc,
1559         .pci_info_str           = qla24xx_pci_info_str,
1560         .fw_version_str         = qla24xx_fw_version_str,
1561         .intr_handler           = qla24xx_intr_handler,
1562         .enable_intrs           = qla24xx_enable_intrs,
1563         .disable_intrs          = qla24xx_disable_intrs,
1564         .abort_command          = qla24xx_abort_command,
1565         .target_reset           = qla24xx_abort_target,
1566         .lun_reset              = qla24xx_lun_reset,
1567         .fabric_login           = qla24xx_login_fabric,
1568         .fabric_logout          = qla24xx_fabric_logout,
1569         .calc_req_entries       = NULL,
1570         .build_iocbs            = NULL,
1571         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1572         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1573         .read_nvram             = qla25xx_read_nvram_data,
1574         .write_nvram            = qla25xx_write_nvram_data,
1575         .fw_dump                = qla25xx_fw_dump,
1576         .beacon_on              = qla24xx_beacon_on,
1577         .beacon_off             = qla24xx_beacon_off,
1578         .beacon_blink           = qla24xx_beacon_blink,
1579         .read_optrom            = qla25xx_read_optrom_data,
1580         .write_optrom           = qla24xx_write_optrom_data,
1581         .get_flash_version      = qla24xx_get_flash_version,
1582         .start_scsi             = qla24xx_dif_start_scsi,
1583         .abort_isp              = qla2x00_abort_isp,
1584 };
1585
1586 static struct isp_operations qla81xx_isp_ops = {
1587         .pci_config             = qla25xx_pci_config,
1588         .reset_chip             = qla24xx_reset_chip,
1589         .chip_diag              = qla24xx_chip_diag,
1590         .config_rings           = qla24xx_config_rings,
1591         .reset_adapter          = qla24xx_reset_adapter,
1592         .nvram_config           = qla81xx_nvram_config,
1593         .update_fw_options      = qla81xx_update_fw_options,
1594         .load_risc              = qla81xx_load_risc,
1595         .pci_info_str           = qla24xx_pci_info_str,
1596         .fw_version_str         = qla24xx_fw_version_str,
1597         .intr_handler           = qla24xx_intr_handler,
1598         .enable_intrs           = qla24xx_enable_intrs,
1599         .disable_intrs          = qla24xx_disable_intrs,
1600         .abort_command          = qla24xx_abort_command,
1601         .target_reset           = qla24xx_abort_target,
1602         .lun_reset              = qla24xx_lun_reset,
1603         .fabric_login           = qla24xx_login_fabric,
1604         .fabric_logout          = qla24xx_fabric_logout,
1605         .calc_req_entries       = NULL,
1606         .build_iocbs            = NULL,
1607         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1608         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1609         .read_nvram             = NULL,
1610         .write_nvram            = NULL,
1611         .fw_dump                = qla81xx_fw_dump,
1612         .beacon_on              = qla24xx_beacon_on,
1613         .beacon_off             = qla24xx_beacon_off,
1614         .beacon_blink           = qla24xx_beacon_blink,
1615         .read_optrom            = qla25xx_read_optrom_data,
1616         .write_optrom           = qla24xx_write_optrom_data,
1617         .get_flash_version      = qla24xx_get_flash_version,
1618         .start_scsi             = qla24xx_dif_start_scsi,
1619         .abort_isp              = qla2x00_abort_isp,
1620 };
1621
1622 static struct isp_operations qla82xx_isp_ops = {
1623         .pci_config             = qla82xx_pci_config,
1624         .reset_chip             = qla82xx_reset_chip,
1625         .chip_diag              = qla24xx_chip_diag,
1626         .config_rings           = qla82xx_config_rings,
1627         .reset_adapter          = qla24xx_reset_adapter,
1628         .nvram_config           = qla81xx_nvram_config,
1629         .update_fw_options      = qla24xx_update_fw_options,
1630         .load_risc              = qla82xx_load_risc,
1631         .pci_info_str           = qla82xx_pci_info_str,
1632         .fw_version_str         = qla24xx_fw_version_str,
1633         .intr_handler           = qla82xx_intr_handler,
1634         .enable_intrs           = qla82xx_enable_intrs,
1635         .disable_intrs          = qla82xx_disable_intrs,
1636         .abort_command          = qla24xx_abort_command,
1637         .target_reset           = qla24xx_abort_target,
1638         .lun_reset              = qla24xx_lun_reset,
1639         .fabric_login           = qla24xx_login_fabric,
1640         .fabric_logout          = qla24xx_fabric_logout,
1641         .calc_req_entries       = NULL,
1642         .build_iocbs            = NULL,
1643         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1644         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1645         .read_nvram             = qla24xx_read_nvram_data,
1646         .write_nvram            = qla24xx_write_nvram_data,
1647         .fw_dump                = qla24xx_fw_dump,
1648         .beacon_on              = qla24xx_beacon_on,
1649         .beacon_off             = qla24xx_beacon_off,
1650         .beacon_blink           = qla24xx_beacon_blink,
1651         .read_optrom            = qla82xx_read_optrom_data,
1652         .write_optrom           = qla82xx_write_optrom_data,
1653         .get_flash_version      = qla24xx_get_flash_version,
1654         .start_scsi             = qla82xx_start_scsi,
1655         .abort_isp              = qla82xx_abort_isp,
1656 };
1657
1658 static inline void
1659 qla2x00_set_isp_flags(struct qla_hw_data *ha)
1660 {
1661         ha->device_type = DT_EXTENDED_IDS;
1662         switch (ha->pdev->device) {
1663         case PCI_DEVICE_ID_QLOGIC_ISP2100:
1664                 ha->device_type |= DT_ISP2100;
1665                 ha->device_type &= ~DT_EXTENDED_IDS;
1666                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1667                 break;
1668         case PCI_DEVICE_ID_QLOGIC_ISP2200:
1669                 ha->device_type |= DT_ISP2200;
1670                 ha->device_type &= ~DT_EXTENDED_IDS;
1671                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1672                 break;
1673         case PCI_DEVICE_ID_QLOGIC_ISP2300:
1674                 ha->device_type |= DT_ISP2300;
1675                 ha->device_type |= DT_ZIO_SUPPORTED;
1676                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1677                 break;
1678         case PCI_DEVICE_ID_QLOGIC_ISP2312:
1679                 ha->device_type |= DT_ISP2312;
1680                 ha->device_type |= DT_ZIO_SUPPORTED;
1681                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1682                 break;
1683         case PCI_DEVICE_ID_QLOGIC_ISP2322:
1684                 ha->device_type |= DT_ISP2322;
1685                 ha->device_type |= DT_ZIO_SUPPORTED;
1686                 if (ha->pdev->subsystem_vendor == 0x1028 &&
1687                     ha->pdev->subsystem_device == 0x0170)
1688                         ha->device_type |= DT_OEM_001;
1689                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1690                 break;
1691         case PCI_DEVICE_ID_QLOGIC_ISP6312:
1692                 ha->device_type |= DT_ISP6312;
1693                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1694                 break;
1695         case PCI_DEVICE_ID_QLOGIC_ISP6322:
1696                 ha->device_type |= DT_ISP6322;
1697                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1698                 break;
1699         case PCI_DEVICE_ID_QLOGIC_ISP2422:
1700                 ha->device_type |= DT_ISP2422;
1701                 ha->device_type |= DT_ZIO_SUPPORTED;
1702                 ha->device_type |= DT_FWI2;
1703                 ha->device_type |= DT_IIDMA;
1704                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1705                 break;
1706         case PCI_DEVICE_ID_QLOGIC_ISP2432:
1707                 ha->device_type |= DT_ISP2432;
1708                 ha->device_type |= DT_ZIO_SUPPORTED;
1709                 ha->device_type |= DT_FWI2;
1710                 ha->device_type |= DT_IIDMA;
1711                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1712                 break;
1713         case PCI_DEVICE_ID_QLOGIC_ISP8432:
1714                 ha->device_type |= DT_ISP8432;
1715                 ha->device_type |= DT_ZIO_SUPPORTED;
1716                 ha->device_type |= DT_FWI2;
1717                 ha->device_type |= DT_IIDMA;
1718                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1719                 break;
1720         case PCI_DEVICE_ID_QLOGIC_ISP5422:
1721                 ha->device_type |= DT_ISP5422;
1722                 ha->device_type |= DT_FWI2;
1723                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1724                 break;
1725         case PCI_DEVICE_ID_QLOGIC_ISP5432:
1726                 ha->device_type |= DT_ISP5432;
1727                 ha->device_type |= DT_FWI2;
1728                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1729                 break;
1730         case PCI_DEVICE_ID_QLOGIC_ISP2532:
1731                 ha->device_type |= DT_ISP2532;
1732                 ha->device_type |= DT_ZIO_SUPPORTED;
1733                 ha->device_type |= DT_FWI2;
1734                 ha->device_type |= DT_IIDMA;
1735                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1736                 break;
1737         case PCI_DEVICE_ID_QLOGIC_ISP8001:
1738                 ha->device_type |= DT_ISP8001;
1739                 ha->device_type |= DT_ZIO_SUPPORTED;
1740                 ha->device_type |= DT_FWI2;
1741                 ha->device_type |= DT_IIDMA;
1742                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1743                 break;
1744         case PCI_DEVICE_ID_QLOGIC_ISP8021:
1745                 ha->device_type |= DT_ISP8021;
1746                 ha->device_type |= DT_ZIO_SUPPORTED;
1747                 ha->device_type |= DT_FWI2;
1748                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1749                 /* Initialize 82XX ISP flags */
1750                 qla82xx_init_flags(ha);
1751                 break;
1752         }
1753
1754         if (IS_QLA82XX(ha))
1755                 ha->port_no = !(ha->portnum & 1);
1756         else
1757                 /* Get adapter physical port no from interrupt pin register. */
1758                 pci_read_config_byte(ha->pdev, PCI_INTERRUPT_PIN, &ha->port_no);
1759
1760         if (ha->port_no & 1)
1761                 ha->flags.port0 = 1;
1762         else
1763                 ha->flags.port0 = 0;
1764 }
1765
1766 static int
1767 qla2x00_iospace_config(struct qla_hw_data *ha)
1768 {
1769         resource_size_t pio;
1770         uint16_t msix;
1771         int cpus;
1772
1773         if (IS_QLA82XX(ha))
1774                 return qla82xx_iospace_config(ha);
1775
1776         if (pci_request_selected_regions(ha->pdev, ha->bars,
1777             QLA2XXX_DRIVER_NAME)) {
1778                 qla_printk(KERN_WARNING, ha,
1779                     "Failed to reserve PIO/MMIO regions (%s)\n",
1780                     pci_name(ha->pdev));
1781
1782                 goto iospace_error_exit;
1783         }
1784         if (!(ha->bars & 1))
1785                 goto skip_pio;
1786
1787         /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1788         pio = pci_resource_start(ha->pdev, 0);
1789         if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
1790                 if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1791                         qla_printk(KERN_WARNING, ha,
1792                             "Invalid PCI I/O region size (%s)...\n",
1793                                 pci_name(ha->pdev));
1794                         pio = 0;
1795                 }
1796         } else {
1797                 qla_printk(KERN_WARNING, ha,
1798                     "region #0 not a PIO resource (%s)...\n",
1799                     pci_name(ha->pdev));
1800                 pio = 0;
1801         }
1802         ha->pio_address = pio;
1803
1804 skip_pio:
1805         /* Use MMIO operations for all accesses. */
1806         if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
1807                 qla_printk(KERN_ERR, ha,
1808                     "region #1 not an MMIO resource (%s), aborting\n",
1809                     pci_name(ha->pdev));
1810                 goto iospace_error_exit;
1811         }
1812         if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
1813                 qla_printk(KERN_ERR, ha,
1814                     "Invalid PCI mem region size (%s), aborting\n",
1815                         pci_name(ha->pdev));
1816                 goto iospace_error_exit;
1817         }
1818
1819         ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
1820         if (!ha->iobase) {
1821                 qla_printk(KERN_ERR, ha,
1822                     "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1823
1824                 goto iospace_error_exit;
1825         }
1826
1827         /* Determine queue resources */
1828         ha->max_req_queues = ha->max_rsp_queues = 1;
1829         if ((ql2xmaxqueues <= 1 && !ql2xmultique_tag) ||
1830                 (ql2xmaxqueues > 1 && ql2xmultique_tag) ||
1831                 (!IS_QLA25XX(ha) && !IS_QLA81XX(ha)))
1832                 goto mqiobase_exit;
1833
1834         ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 3),
1835                         pci_resource_len(ha->pdev, 3));
1836         if (ha->mqiobase) {
1837                 /* Read MSIX vector size of the board */
1838                 pci_read_config_word(ha->pdev, QLA_PCI_MSIX_CONTROL, &msix);
1839                 ha->msix_count = msix;
1840                 /* Max queues are bounded by available msix vectors */
1841                 /* queue 0 uses two msix vectors */
1842                 if (ql2xmultique_tag) {
1843                         cpus = num_online_cpus();
1844                         ha->max_rsp_queues = (ha->msix_count - 1 > cpus) ?
1845                                 (cpus + 1) : (ha->msix_count - 1);
1846                         ha->max_req_queues = 2;
1847                 } else if (ql2xmaxqueues > 1) {
1848                         ha->max_req_queues = ql2xmaxqueues > QLA_MQ_SIZE ?
1849                                                 QLA_MQ_SIZE : ql2xmaxqueues;
1850                         DEBUG2(qla_printk(KERN_INFO, ha, "QoS mode set, max no"
1851                         " of request queues:%d\n", ha->max_req_queues));
1852                 }
1853                 qla_printk(KERN_INFO, ha,
1854                         "MSI-X vector count: %d\n", msix);
1855         } else
1856                 qla_printk(KERN_INFO, ha, "BAR 3 not enabled\n");
1857
1858 mqiobase_exit:
1859         ha->msix_count = ha->max_rsp_queues + 1;
1860         return (0);
1861
1862 iospace_error_exit:
1863         return (-ENOMEM);
1864 }
1865
1866 static void
1867 qla2xxx_scan_start(struct Scsi_Host *shost)
1868 {
1869         scsi_qla_host_t *vha = shost_priv(shost);
1870
1871         if (vha->hw->flags.running_gold_fw)
1872                 return;
1873
1874         set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1875         set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1876         set_bit(RSCN_UPDATE, &vha->dpc_flags);
1877         set_bit(NPIV_CONFIG_NEEDED, &vha->dpc_flags);
1878 }
1879
1880 static int
1881 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1882 {
1883         scsi_qla_host_t *vha = shost_priv(shost);
1884
1885         if (!vha->host)
1886                 return 1;
1887         if (time > vha->hw->loop_reset_delay * HZ)
1888                 return 1;
1889
1890         return atomic_read(&vha->loop_state) == LOOP_READY;
1891 }
1892
1893 /*
1894  * PCI driver interface
1895  */
1896 static int __devinit
1897 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1898 {
1899         int     ret = -ENODEV;
1900         struct Scsi_Host *host;
1901         scsi_qla_host_t *base_vha = NULL;
1902         struct qla_hw_data *ha;
1903         char pci_info[30];
1904         char fw_str[30];
1905         struct scsi_host_template *sht;
1906         int bars, max_id, mem_only = 0;
1907         uint16_t req_length = 0, rsp_length = 0;
1908         struct req_que *req = NULL;
1909         struct rsp_que *rsp = NULL;
1910
1911         bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
1912         sht = &qla2xxx_driver_template;
1913         if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1914             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1915             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8432 ||
1916             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1917             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
1918             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532 ||
1919             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8001 ||
1920             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8021) {
1921                 bars = pci_select_bars(pdev, IORESOURCE_MEM);
1922                 mem_only = 1;
1923         }
1924
1925         if (mem_only) {
1926                 if (pci_enable_device_mem(pdev))
1927                         goto probe_out;
1928         } else {
1929                 if (pci_enable_device(pdev))
1930                         goto probe_out;
1931         }
1932
1933         /* This may fail but that's ok */
1934         pci_enable_pcie_error_reporting(pdev);
1935
1936         ha = kzalloc(sizeof(struct qla_hw_data), GFP_KERNEL);
1937         if (!ha) {
1938                 DEBUG(printk("Unable to allocate memory for ha\n"));
1939                 goto probe_out;
1940         }
1941         ha->pdev = pdev;
1942
1943         /* Clear our data area */
1944         ha->bars = bars;
1945         ha->mem_only = mem_only;
1946         spin_lock_init(&ha->hardware_lock);
1947         spin_lock_init(&ha->vport_slock);
1948
1949         /* Set ISP-type information. */
1950         qla2x00_set_isp_flags(ha);
1951
1952         /* Set EEH reset type to fundamental if required by hba */
1953         if ( IS_QLA24XX(ha) || IS_QLA25XX(ha) || IS_QLA81XX(ha)) {
1954                 pdev->needs_freset = 1;
1955         }
1956
1957         /* Configure PCI I/O space */
1958         ret = qla2x00_iospace_config(ha);
1959         if (ret)
1960                 goto probe_hw_failed;
1961
1962         qla_printk(KERN_INFO, ha,
1963             "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1964             ha->iobase);
1965
1966         ha->prev_topology = 0;
1967         ha->init_cb_size = sizeof(init_cb_t);
1968         ha->link_data_rate = PORT_SPEED_UNKNOWN;
1969         ha->optrom_size = OPTROM_SIZE_2300;
1970
1971         /* Assign ISP specific operations. */
1972         max_id = MAX_TARGETS_2200;
1973         if (IS_QLA2100(ha)) {
1974                 max_id = MAX_TARGETS_2100;
1975                 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1976                 req_length = REQUEST_ENTRY_CNT_2100;
1977                 rsp_length = RESPONSE_ENTRY_CNT_2100;
1978                 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
1979                 ha->gid_list_info_size = 4;
1980                 ha->flash_conf_off = ~0;
1981                 ha->flash_data_off = ~0;
1982                 ha->nvram_conf_off = ~0;
1983                 ha->nvram_data_off = ~0;
1984                 ha->isp_ops = &qla2100_isp_ops;
1985         } else if (IS_QLA2200(ha)) {
1986                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1987                 req_length = REQUEST_ENTRY_CNT_2200;
1988                 rsp_length = RESPONSE_ENTRY_CNT_2100;
1989                 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
1990                 ha->gid_list_info_size = 4;
1991                 ha->flash_conf_off = ~0;
1992                 ha->flash_data_off = ~0;
1993                 ha->nvram_conf_off = ~0;
1994                 ha->nvram_data_off = ~0;
1995                 ha->isp_ops = &qla2100_isp_ops;
1996         } else if (IS_QLA23XX(ha)) {
1997                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1998                 req_length = REQUEST_ENTRY_CNT_2200;
1999                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2000                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2001                 ha->gid_list_info_size = 6;
2002                 if (IS_QLA2322(ha) || IS_QLA6322(ha))
2003                         ha->optrom_size = OPTROM_SIZE_2322;
2004                 ha->flash_conf_off = ~0;
2005                 ha->flash_data_off = ~0;
2006                 ha->nvram_conf_off = ~0;
2007                 ha->nvram_data_off = ~0;
2008                 ha->isp_ops = &qla2300_isp_ops;
2009         } else if (IS_QLA24XX_TYPE(ha)) {
2010                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2011                 req_length = REQUEST_ENTRY_CNT_24XX;
2012                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2013                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2014                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
2015                 ha->gid_list_info_size = 8;
2016                 ha->optrom_size = OPTROM_SIZE_24XX;
2017                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA24XX;
2018                 ha->isp_ops = &qla24xx_isp_ops;
2019                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2020                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2021                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2022                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2023         } else if (IS_QLA25XX(ha)) {
2024                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2025                 req_length = REQUEST_ENTRY_CNT_24XX;
2026                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2027                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2028                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
2029                 ha->gid_list_info_size = 8;
2030                 ha->optrom_size = OPTROM_SIZE_25XX;
2031                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2032                 ha->isp_ops = &qla25xx_isp_ops;
2033                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2034                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2035                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2036                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2037         } else if (IS_QLA81XX(ha)) {
2038                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2039                 req_length = REQUEST_ENTRY_CNT_24XX;
2040                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2041                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2042                 ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2043                 ha->gid_list_info_size = 8;
2044                 ha->optrom_size = OPTROM_SIZE_81XX;
2045                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2046                 ha->isp_ops = &qla81xx_isp_ops;
2047                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
2048                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
2049                 ha->nvram_conf_off = ~0;
2050                 ha->nvram_data_off = ~0;
2051         } else if (IS_QLA82XX(ha)) {
2052                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2053                 req_length = REQUEST_ENTRY_CNT_82XX;
2054                 rsp_length = RESPONSE_ENTRY_CNT_82XX;
2055                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2056                 ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2057                 ha->gid_list_info_size = 8;
2058                 ha->optrom_size = OPTROM_SIZE_82XX;
2059                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2060                 ha->isp_ops = &qla82xx_isp_ops;
2061                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2062                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2063                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2064                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2065         }
2066
2067         mutex_init(&ha->vport_lock);
2068         init_completion(&ha->mbx_cmd_comp);
2069         complete(&ha->mbx_cmd_comp);
2070         init_completion(&ha->mbx_intr_comp);
2071         init_completion(&ha->dcbx_comp);
2072
2073         set_bit(0, (unsigned long *) ha->vp_idx_map);
2074
2075         qla2x00_config_dma_addressing(ha);
2076         ret = qla2x00_mem_alloc(ha, req_length, rsp_length, &req, &rsp);
2077         if (!ret) {
2078                 qla_printk(KERN_WARNING, ha,
2079                     "[ERROR] Failed to allocate memory for adapter\n");
2080
2081                 goto probe_hw_failed;
2082         }
2083
2084         req->max_q_depth = MAX_Q_DEPTH;
2085         if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
2086                 req->max_q_depth = ql2xmaxqdepth;
2087
2088
2089         base_vha = qla2x00_create_host(sht, ha);
2090         if (!base_vha) {
2091                 qla_printk(KERN_WARNING, ha,
2092                     "[ERROR] Failed to allocate memory for scsi_host\n");
2093
2094                 ret = -ENOMEM;
2095                 qla2x00_mem_free(ha);
2096                 qla2x00_free_req_que(ha, req);
2097                 qla2x00_free_rsp_que(ha, rsp);
2098                 goto probe_hw_failed;
2099         }
2100
2101         pci_set_drvdata(pdev, base_vha);
2102
2103         host = base_vha->host;
2104         base_vha->req = req;
2105         host->can_queue = req->length + 128;
2106         if (IS_QLA2XXX_MIDTYPE(ha))
2107                 base_vha->mgmt_svr_loop_id = 10 + base_vha->vp_idx;
2108         else
2109                 base_vha->mgmt_svr_loop_id = MANAGEMENT_SERVER +
2110                                                 base_vha->vp_idx;
2111
2112         /* Set the SG table size based on ISP type */
2113         if (!IS_FWI2_CAPABLE(ha)) {
2114                 if (IS_QLA2100(ha))
2115                         host->sg_tablesize = 32;
2116         } else {
2117                 if (!IS_QLA82XX(ha))
2118                         host->sg_tablesize = QLA_SG_ALL;
2119         }
2120
2121         host->max_id = max_id;
2122         host->this_id = 255;
2123         host->cmd_per_lun = 3;
2124         host->unique_id = host->host_no;
2125         if ((IS_QLA25XX(ha) || IS_QLA81XX(ha)) && ql2xenabledif)
2126                 host->max_cmd_len = 32;
2127         else
2128                 host->max_cmd_len = MAX_CMDSZ;
2129         host->max_channel = MAX_BUSES - 1;
2130         host->max_lun = MAX_LUNS;
2131         host->transportt = qla2xxx_transport_template;
2132         sht->vendor_id = (SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC);
2133
2134         /* Set up the irqs */
2135         ret = qla2x00_request_irqs(ha, rsp);
2136         if (ret)
2137                 goto probe_init_failed;
2138
2139         pci_save_state(pdev);
2140
2141         /* Alloc arrays of request and response ring ptrs */
2142 que_init:
2143         if (!qla2x00_alloc_queues(ha)) {
2144                 qla_printk(KERN_WARNING, ha,
2145                 "[ERROR] Failed to allocate memory for queue"
2146                 " pointers\n");
2147                 goto probe_init_failed;
2148         }
2149
2150         ha->rsp_q_map[0] = rsp;
2151         ha->req_q_map[0] = req;
2152         rsp->req = req;
2153         req->rsp = rsp;
2154         set_bit(0, ha->req_qid_map);
2155         set_bit(0, ha->rsp_qid_map);
2156         /* FWI2-capable only. */
2157         req->req_q_in = &ha->iobase->isp24.req_q_in;
2158         req->req_q_out = &ha->iobase->isp24.req_q_out;
2159         rsp->rsp_q_in = &ha->iobase->isp24.rsp_q_in;
2160         rsp->rsp_q_out = &ha->iobase->isp24.rsp_q_out;
2161         if (ha->mqenable) {
2162                 req->req_q_in = &ha->mqiobase->isp25mq.req_q_in;
2163                 req->req_q_out = &ha->mqiobase->isp25mq.req_q_out;
2164                 rsp->rsp_q_in = &ha->mqiobase->isp25mq.rsp_q_in;
2165                 rsp->rsp_q_out =  &ha->mqiobase->isp25mq.rsp_q_out;
2166         }
2167
2168         if (IS_QLA82XX(ha)) {
2169                 req->req_q_out = &ha->iobase->isp82.req_q_out[0];
2170                 rsp->rsp_q_in = &ha->iobase->isp82.rsp_q_in[0];
2171                 rsp->rsp_q_out = &ha->iobase->isp82.rsp_q_out[0];
2172         }
2173
2174         if (qla2x00_initialize_adapter(base_vha)) {
2175                 qla_printk(KERN_WARNING, ha,
2176                     "Failed to initialize adapter\n");
2177
2178                 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
2179                     "Adapter flags %x.\n",
2180                     base_vha->host_no, base_vha->device_flags));
2181
2182                 if (IS_QLA82XX(ha)) {
2183                         qla82xx_idc_lock(ha);
2184                         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
2185                                 QLA82XX_DEV_FAILED);
2186                         qla82xx_idc_unlock(ha);
2187                         qla_printk(KERN_INFO, ha, "HW State: FAILED\n");
2188                 }
2189
2190                 ret = -ENODEV;
2191                 goto probe_failed;
2192         }
2193
2194         if (ha->mqenable) {
2195                 if (qla25xx_setup_mode(base_vha)) {
2196                         qla_printk(KERN_WARNING, ha,
2197                                 "Can't create queues, falling back to single"
2198                                 " queue mode\n");
2199                         goto que_init;
2200                 }
2201         }
2202
2203         if (ha->flags.running_gold_fw)
2204                 goto skip_dpc;
2205
2206         /*
2207          * Startup the kernel thread for this host adapter
2208          */
2209         ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
2210                         "%s_dpc", base_vha->host_str);
2211         if (IS_ERR(ha->dpc_thread)) {
2212                 qla_printk(KERN_WARNING, ha,
2213                     "Unable to start DPC thread!\n");
2214                 ret = PTR_ERR(ha->dpc_thread);
2215                 goto probe_failed;
2216         }
2217
2218 skip_dpc:
2219         list_add_tail(&base_vha->list, &ha->vp_list);
2220         base_vha->host->irq = ha->pdev->irq;
2221
2222         /* Initialized the timer */
2223         qla2x00_start_timer(base_vha, qla2x00_timer, WATCH_INTERVAL);
2224
2225         DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
2226             base_vha->host_no, ha));
2227
2228         if ((IS_QLA25XX(ha) || IS_QLA81XX(ha)) && ql2xenabledif) {
2229                 if (ha->fw_attributes & BIT_4) {
2230                         base_vha->flags.difdix_supported = 1;
2231                         DEBUG18(qla_printk(KERN_INFO, ha,
2232                             "Registering for DIF/DIX type 1 and 3"
2233                             " protection.\n"));
2234                         scsi_host_set_prot(host,
2235                             SHOST_DIF_TYPE1_PROTECTION
2236                             | SHOST_DIF_TYPE2_PROTECTION
2237                             | SHOST_DIF_TYPE3_PROTECTION
2238                             | SHOST_DIX_TYPE1_PROTECTION
2239                             | SHOST_DIX_TYPE2_PROTECTION
2240                             | SHOST_DIX_TYPE3_PROTECTION);
2241                         scsi_host_set_guard(host, SHOST_DIX_GUARD_CRC);
2242                 } else
2243                         base_vha->flags.difdix_supported = 0;
2244         }
2245
2246         ha->isp_ops->enable_intrs(ha);
2247
2248         ret = scsi_add_host(host, &pdev->dev);
2249         if (ret)
2250                 goto probe_failed;
2251
2252         base_vha->flags.init_done = 1;
2253         base_vha->flags.online = 1;
2254
2255         scsi_scan_host(host);
2256
2257         qla2x00_alloc_sysfs_attr(base_vha);
2258
2259         qla2x00_init_host_attr(base_vha);
2260
2261         qla2x00_dfs_setup(base_vha);
2262
2263         qla_printk(KERN_INFO, ha, "\n"
2264             " QLogic Fibre Channel HBA Driver: %s\n"
2265             "  QLogic %s - %s\n"
2266             "  ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
2267             qla2x00_version_str, ha->model_number,
2268             ha->model_desc ? ha->model_desc : "", pdev->device,
2269             ha->isp_ops->pci_info_str(base_vha, pci_info), pci_name(pdev),
2270             ha->flags.enable_64bit_addressing ? '+' : '-', base_vha->host_no,
2271             ha->isp_ops->fw_version_str(base_vha, fw_str));
2272
2273         return 0;
2274
2275 probe_init_failed:
2276         qla2x00_free_req_que(ha, req);
2277         qla2x00_free_rsp_que(ha, rsp);
2278         ha->max_req_queues = ha->max_rsp_queues = 0;
2279
2280 probe_failed:
2281         if (base_vha->timer_active)
2282                 qla2x00_stop_timer(base_vha);
2283         base_vha->flags.online = 0;
2284         if (ha->dpc_thread) {
2285                 struct task_struct *t = ha->dpc_thread;
2286
2287                 ha->dpc_thread = NULL;
2288                 kthread_stop(t);
2289         }
2290
2291         qla2x00_free_device(base_vha);
2292
2293         scsi_host_put(base_vha->host);
2294
2295 probe_hw_failed:
2296         if (IS_QLA82XX(ha)) {
2297                 qla82xx_idc_lock(ha);
2298                 qla82xx_clear_drv_active(ha);
2299                 qla82xx_idc_unlock(ha);
2300                 iounmap((device_reg_t __iomem *)ha->nx_pcibase);
2301                 if (!ql2xdbwr)
2302                         iounmap((device_reg_t __iomem *)ha->nxdb_wr_ptr);
2303         } else {
2304                 if (ha->iobase)
2305                         iounmap(ha->iobase);
2306         }
2307         pci_release_selected_regions(ha->pdev, ha->bars);
2308         kfree(ha);
2309         ha = NULL;
2310
2311 probe_out:
2312         pci_disable_device(pdev);
2313         return ret;
2314 }
2315
2316 static void
2317 qla2x00_shutdown(struct pci_dev *pdev)
2318 {
2319         scsi_qla_host_t *vha;
2320         struct qla_hw_data  *ha;
2321
2322         vha = pci_get_drvdata(pdev);
2323         ha = vha->hw;
2324
2325         /* Turn-off FCE trace */
2326         if (ha->flags.fce_enabled) {
2327                 qla2x00_disable_fce_trace(vha, NULL, NULL);
2328                 ha->flags.fce_enabled = 0;
2329         }
2330
2331         /* Turn-off EFT trace */
2332         if (ha->eft)
2333                 qla2x00_disable_eft_trace(vha);
2334
2335         /* Stop currently executing firmware. */
2336         qla2x00_try_to_stop_firmware(vha);
2337
2338         /* Turn adapter off line */
2339         vha->flags.online = 0;
2340
2341         /* turn-off interrupts on the card */
2342         if (ha->interrupts_on) {
2343                 vha->flags.init_done = 0;
2344                 ha->isp_ops->disable_intrs(ha);
2345         }
2346
2347         qla2x00_free_irqs(vha);
2348
2349         qla2x00_free_fw_dump(ha);
2350 }
2351
2352 static void
2353 qla2x00_remove_one(struct pci_dev *pdev)
2354 {
2355         scsi_qla_host_t *base_vha, *vha;
2356         struct qla_hw_data  *ha;
2357         unsigned long flags;
2358
2359         base_vha = pci_get_drvdata(pdev);
2360         ha = base_vha->hw;
2361
2362         spin_lock_irqsave(&ha->vport_slock, flags);
2363         list_for_each_entry(vha, &ha->vp_list, list) {
2364                 atomic_inc(&vha->vref_count);
2365
2366                 if (vha->fc_vport) {
2367                         spin_unlock_irqrestore(&ha->vport_slock, flags);
2368
2369                         fc_vport_terminate(vha->fc_vport);
2370
2371                         spin_lock_irqsave(&ha->vport_slock, flags);
2372                 }
2373
2374                 atomic_dec(&vha->vref_count);
2375         }
2376         spin_unlock_irqrestore(&ha->vport_slock, flags);
2377
2378         set_bit(UNLOADING, &base_vha->dpc_flags);
2379
2380         qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
2381
2382         qla2x00_dfs_remove(base_vha);
2383
2384         qla84xx_put_chip(base_vha);
2385
2386         /* Disable timer */
2387         if (base_vha->timer_active)
2388                 qla2x00_stop_timer(base_vha);
2389
2390         base_vha->flags.online = 0;
2391
2392         /* Flush the work queue and remove it */
2393         if (ha->wq) {
2394                 flush_workqueue(ha->wq);
2395                 destroy_workqueue(ha->wq);
2396                 ha->wq = NULL;
2397         }
2398
2399         /* Kill the kernel thread for this host */
2400         if (ha->dpc_thread) {
2401                 struct task_struct *t = ha->dpc_thread;
2402
2403                 /*
2404                  * qla2xxx_wake_dpc checks for ->dpc_thread
2405                  * so we need to zero it out.
2406                  */
2407                 ha->dpc_thread = NULL;
2408                 kthread_stop(t);
2409         }
2410
2411         qla2x00_free_sysfs_attr(base_vha);
2412
2413         fc_remove_host(base_vha->host);
2414
2415         scsi_remove_host(base_vha->host);
2416
2417         qla2x00_free_device(base_vha);
2418
2419         scsi_host_put(base_vha->host);
2420
2421         if (IS_QLA82XX(ha)) {
2422                 qla82xx_idc_lock(ha);
2423                 qla82xx_clear_drv_active(ha);
2424                 qla82xx_idc_unlock(ha);
2425
2426                 iounmap((device_reg_t __iomem *)ha->nx_pcibase);
2427                 if (!ql2xdbwr)
2428                         iounmap((device_reg_t __iomem *)ha->nxdb_wr_ptr);
2429         } else {
2430                 if (ha->iobase)
2431                         iounmap(ha->iobase);
2432
2433                 if (ha->mqiobase)
2434                         iounmap(ha->mqiobase);
2435         }
2436
2437         pci_release_selected_regions(ha->pdev, ha->bars);
2438         kfree(ha);
2439         ha = NULL;
2440
2441         pci_disable_pcie_error_reporting(pdev);
2442
2443         pci_disable_device(pdev);
2444         pci_set_drvdata(pdev, NULL);
2445 }
2446
2447 static void
2448 qla2x00_free_device(scsi_qla_host_t *vha)
2449 {
2450         struct qla_hw_data *ha = vha->hw;
2451
2452         qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
2453
2454         /* Disable timer */
2455         if (vha->timer_active)
2456                 qla2x00_stop_timer(vha);
2457
2458         /* Kill the kernel thread for this host */
2459         if (ha->dpc_thread) {
2460                 struct task_struct *t = ha->dpc_thread;
2461
2462                 /*
2463                  * qla2xxx_wake_dpc checks for ->dpc_thread
2464                  * so we need to zero it out.
2465                  */
2466                 ha->dpc_thread = NULL;
2467                 kthread_stop(t);
2468         }
2469
2470         qla25xx_delete_queues(vha);
2471
2472         if (ha->flags.fce_enabled)
2473                 qla2x00_disable_fce_trace(vha, NULL, NULL);
2474
2475         if (ha->eft)
2476                 qla2x00_disable_eft_trace(vha);
2477
2478         /* Stop currently executing firmware. */
2479         qla2x00_try_to_stop_firmware(vha);
2480
2481         vha->flags.online = 0;
2482
2483         /* turn-off interrupts on the card */
2484         if (ha->interrupts_on) {
2485                 vha->flags.init_done = 0;
2486                 ha->isp_ops->disable_intrs(ha);
2487         }
2488
2489         qla2x00_free_irqs(vha);
2490
2491         qla2x00_free_fcports(vha);
2492
2493         qla2x00_mem_free(ha);
2494
2495         qla2x00_free_queues(ha);
2496 }
2497
2498 void qla2x00_free_fcports(struct scsi_qla_host *vha)
2499 {
2500         fc_port_t *fcport, *tfcport;
2501
2502         list_for_each_entry_safe(fcport, tfcport, &vha->vp_fcports, list) {
2503                 list_del(&fcport->list);
2504                 kfree(fcport);
2505                 fcport = NULL;
2506         }
2507 }
2508
2509 static inline void
2510 qla2x00_schedule_rport_del(struct scsi_qla_host *vha, fc_port_t *fcport,
2511     int defer)
2512 {
2513         struct fc_rport *rport;
2514         scsi_qla_host_t *base_vha;
2515         unsigned long flags;
2516
2517         if (!fcport->rport)
2518                 return;
2519
2520         rport = fcport->rport;
2521         if (defer) {
2522                 base_vha = pci_get_drvdata(vha->hw->pdev);
2523                 spin_lock_irqsave(vha->host->host_lock, flags);
2524                 fcport->drport = rport;
2525                 spin_unlock_irqrestore(vha->host->host_lock, flags);
2526                 set_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
2527                 qla2xxx_wake_dpc(base_vha);
2528         } else
2529                 fc_remote_port_delete(rport);
2530 }
2531
2532 /*
2533  * qla2x00_mark_device_lost Updates fcport state when device goes offline.
2534  *
2535  * Input: ha = adapter block pointer.  fcport = port structure pointer.
2536  *
2537  * Return: None.
2538  *
2539  * Context:
2540  */
2541 void qla2x00_mark_device_lost(scsi_qla_host_t *vha, fc_port_t *fcport,
2542     int do_login, int defer)
2543 {
2544         if (atomic_read(&fcport->state) == FCS_ONLINE &&
2545             vha->vp_idx == fcport->vp_idx) {
2546                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2547                 qla2x00_schedule_rport_del(vha, fcport, defer);
2548         }
2549         /*
2550          * We may need to retry the login, so don't change the state of the
2551          * port but do the retries.
2552          */
2553         if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
2554                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2555
2556         if (!do_login)
2557                 return;
2558
2559         if (fcport->login_retry == 0) {
2560                 fcport->login_retry = vha->hw->login_retry_count;
2561                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2562
2563                 DEBUG(printk("scsi(%ld): Port login retry: "
2564                     "%02x%02x%02x%02x%02x%02x%02x%02x, "
2565                     "id = 0x%04x retry cnt=%d\n",
2566                     vha->host_no,
2567                     fcport->port_name[0],
2568                     fcport->port_name[1],
2569                     fcport->port_name[2],
2570                     fcport->port_name[3],
2571                     fcport->port_name[4],
2572                     fcport->port_name[5],
2573                     fcport->port_name[6],
2574                     fcport->port_name[7],
2575                     fcport->loop_id,
2576                     fcport->login_retry));
2577         }
2578 }
2579
2580 /*
2581  * qla2x00_mark_all_devices_lost
2582  *      Updates fcport state when device goes offline.
2583  *
2584  * Input:
2585  *      ha = adapter block pointer.
2586  *      fcport = port structure pointer.
2587  *
2588  * Return:
2589  *      None.
2590  *
2591  * Context:
2592  */
2593 void
2594 qla2x00_mark_all_devices_lost(scsi_qla_host_t *vha, int defer)
2595 {
2596         fc_port_t *fcport;
2597
2598         list_for_each_entry(fcport, &vha->vp_fcports, list) {
2599                 if (vha->vp_idx != 0 && vha->vp_idx != fcport->vp_idx)
2600                         continue;
2601
2602                 /*
2603                  * No point in marking the device as lost, if the device is
2604                  * already DEAD.
2605                  */
2606                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
2607                         continue;
2608                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
2609                         atomic_set(&fcport->state, FCS_DEVICE_LOST);
2610                         if (defer)
2611                                 qla2x00_schedule_rport_del(vha, fcport, defer);
2612                         else if (vha->vp_idx == fcport->vp_idx)
2613                                 qla2x00_schedule_rport_del(vha, fcport, defer);
2614                 }
2615         }
2616 }
2617
2618 /*
2619 * qla2x00_mem_alloc
2620 *      Allocates adapter memory.
2621 *
2622 * Returns:
2623 *      0  = success.
2624 *      !0  = failure.
2625 */
2626 static int
2627 qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
2628         struct req_que **req, struct rsp_que **rsp)
2629 {
2630         char    name[16];
2631
2632         ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
2633                 &ha->init_cb_dma, GFP_KERNEL);
2634         if (!ha->init_cb)
2635                 goto fail;
2636
2637         ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
2638                 &ha->gid_list_dma, GFP_KERNEL);
2639         if (!ha->gid_list)
2640                 goto fail_free_init_cb;
2641
2642         ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
2643         if (!ha->srb_mempool)
2644                 goto fail_free_gid_list;
2645
2646         if (IS_QLA82XX(ha)) {
2647                 /* Allocate cache for CT6 Ctx. */
2648                 if (!ctx_cachep) {
2649                         ctx_cachep = kmem_cache_create("qla2xxx_ctx",
2650                                 sizeof(struct ct6_dsd), 0,
2651                                 SLAB_HWCACHE_ALIGN, NULL);
2652                         if (!ctx_cachep)
2653                                 goto fail_free_gid_list;
2654                 }
2655                 ha->ctx_mempool = mempool_create_slab_pool(SRB_MIN_REQ,
2656                         ctx_cachep);
2657                 if (!ha->ctx_mempool)
2658                         goto fail_free_srb_mempool;
2659         }
2660
2661         /* Get memory for cached NVRAM */
2662         ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
2663         if (!ha->nvram)
2664                 goto fail_free_ctx_mempool;
2665
2666         snprintf(name, sizeof(name), "%s_%d", QLA2XXX_DRIVER_NAME,
2667                 ha->pdev->device);
2668         ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2669                 DMA_POOL_SIZE, 8, 0);
2670         if (!ha->s_dma_pool)
2671                 goto fail_free_nvram;
2672
2673         if (IS_QLA82XX(ha) || ql2xenabledif) {
2674                 ha->dl_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2675                         DSD_LIST_DMA_POOL_SIZE, 8, 0);
2676                 if (!ha->dl_dma_pool) {
2677                         qla_printk(KERN_WARNING, ha,
2678                             "Memory Allocation failed - dl_dma_pool\n");
2679                         goto fail_s_dma_pool;
2680                 }
2681
2682                 ha->fcp_cmnd_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2683                         FCP_CMND_DMA_POOL_SIZE, 8, 0);
2684                 if (!ha->fcp_cmnd_dma_pool) {
2685                         qla_printk(KERN_WARNING, ha,
2686                             "Memory Allocation failed - fcp_cmnd_dma_pool\n");
2687                         goto fail_dl_dma_pool;
2688                 }
2689         }
2690
2691         /* Allocate memory for SNS commands */
2692         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2693         /* Get consistent memory allocated for SNS commands */
2694                 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
2695                 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
2696                 if (!ha->sns_cmd)
2697                         goto fail_dma_pool;
2698         } else {
2699         /* Get consistent memory allocated for MS IOCB */
2700                 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2701                         &ha->ms_iocb_dma);
2702                 if (!ha->ms_iocb)
2703                         goto fail_dma_pool;
2704         /* Get consistent memory allocated for CT SNS commands */
2705                 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2706                         sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
2707                 if (!ha->ct_sns)
2708                         goto fail_free_ms_iocb;
2709         }
2710
2711         /* Allocate memory for request ring */
2712         *req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
2713         if (!*req) {
2714                 DEBUG(printk("Unable to allocate memory for req\n"));
2715                 goto fail_req;
2716         }
2717         (*req)->length = req_len;
2718         (*req)->ring = dma_alloc_coherent(&ha->pdev->dev,
2719                 ((*req)->length + 1) * sizeof(request_t),
2720                 &(*req)->dma, GFP_KERNEL);
2721         if (!(*req)->ring) {
2722                 DEBUG(printk("Unable to allocate memory for req_ring\n"));
2723                 goto fail_req_ring;
2724         }
2725         /* Allocate memory for response ring */
2726         *rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
2727         if (!*rsp) {
2728                 qla_printk(KERN_WARNING, ha,
2729                         "Unable to allocate memory for rsp\n");
2730                 goto fail_rsp;
2731         }
2732         (*rsp)->hw = ha;
2733         (*rsp)->length = rsp_len;
2734         (*rsp)->ring = dma_alloc_coherent(&ha->pdev->dev,
2735                 ((*rsp)->length + 1) * sizeof(response_t),
2736                 &(*rsp)->dma, GFP_KERNEL);
2737         if (!(*rsp)->ring) {
2738                 qla_printk(KERN_WARNING, ha,
2739                         "Unable to allocate memory for rsp_ring\n");
2740                 goto fail_rsp_ring;
2741         }
2742         (*req)->rsp = *rsp;
2743         (*rsp)->req = *req;
2744         /* Allocate memory for NVRAM data for vports */
2745         if (ha->nvram_npiv_size) {
2746                 ha->npiv_info = kzalloc(sizeof(struct qla_npiv_entry) *
2747                                         ha->nvram_npiv_size, GFP_KERNEL);
2748                 if (!ha->npiv_info) {
2749                         qla_printk(KERN_WARNING, ha,
2750                                 "Unable to allocate memory for npiv info\n");
2751                         goto fail_npiv_info;
2752                 }
2753         } else
2754                 ha->npiv_info = NULL;
2755
2756         /* Get consistent memory allocated for EX-INIT-CB. */
2757         if (IS_QLA8XXX_TYPE(ha)) {
2758                 ha->ex_init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2759                     &ha->ex_init_cb_dma);
2760                 if (!ha->ex_init_cb)
2761                         goto fail_ex_init_cb;
2762         }
2763
2764         INIT_LIST_HEAD(&ha->gbl_dsd_list);
2765
2766         /* Get consistent memory allocated for Async Port-Database. */
2767         if (!IS_FWI2_CAPABLE(ha)) {
2768                 ha->async_pd = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2769                         &ha->async_pd_dma);
2770                 if (!ha->async_pd)
2771                         goto fail_async_pd;
2772         }
2773
2774         INIT_LIST_HEAD(&ha->vp_list);
2775         return 1;
2776
2777 fail_async_pd:
2778         dma_pool_free(ha->s_dma_pool, ha->ex_init_cb, ha->ex_init_cb_dma);
2779 fail_ex_init_cb:
2780         kfree(ha->npiv_info);
2781 fail_npiv_info:
2782         dma_free_coherent(&ha->pdev->dev, ((*rsp)->length + 1) *
2783                 sizeof(response_t), (*rsp)->ring, (*rsp)->dma);
2784         (*rsp)->ring = NULL;
2785         (*rsp)->dma = 0;
2786 fail_rsp_ring:
2787         kfree(*rsp);
2788 fail_rsp:
2789         dma_free_coherent(&ha->pdev->dev, ((*req)->length + 1) *
2790                 sizeof(request_t), (*req)->ring, (*req)->dma);
2791         (*req)->ring = NULL;
2792         (*req)->dma = 0;
2793 fail_req_ring:
2794         kfree(*req);
2795 fail_req:
2796         dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2797                 ha->ct_sns, ha->ct_sns_dma);
2798         ha->ct_sns = NULL;
2799         ha->ct_sns_dma = 0;
2800 fail_free_ms_iocb:
2801         dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2802         ha->ms_iocb = NULL;
2803         ha->ms_iocb_dma = 0;
2804 fail_dma_pool:
2805         if (IS_QLA82XX(ha) || ql2xenabledif) {
2806                 dma_pool_destroy(ha->fcp_cmnd_dma_pool);
2807                 ha->fcp_cmnd_dma_pool = NULL;
2808         }
2809 fail_dl_dma_pool:
2810         if (IS_QLA82XX(ha) || ql2xenabledif) {
2811                 dma_pool_destroy(ha->dl_dma_pool);
2812                 ha->dl_dma_pool = NULL;
2813         }
2814 fail_s_dma_pool:
2815         dma_pool_destroy(ha->s_dma_pool);
2816         ha->s_dma_pool = NULL;
2817 fail_free_nvram:
2818         kfree(ha->nvram);
2819         ha->nvram = NULL;
2820 fail_free_ctx_mempool:
2821         mempool_destroy(ha->ctx_mempool);
2822         ha->ctx_mempool = NULL;
2823 fail_free_srb_mempool:
2824         mempool_destroy(ha->srb_mempool);
2825         ha->srb_mempool = NULL;
2826 fail_free_gid_list:
2827         dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2828         ha->gid_list_dma);
2829         ha->gid_list = NULL;
2830         ha->gid_list_dma = 0;
2831 fail_free_init_cb:
2832         dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
2833         ha->init_cb_dma);
2834         ha->init_cb = NULL;
2835         ha->init_cb_dma = 0;
2836 fail:
2837         DEBUG(printk("%s: Memory allocation failure\n", __func__));
2838         return -ENOMEM;
2839 }
2840
2841 /*
2842 * qla2x00_free_fw_dump
2843 *       Frees fw dump stuff.
2844 *
2845 * Input:
2846 *       ha = adapter block pointer.
2847 */
2848 static void
2849 qla2x00_free_fw_dump(struct qla_hw_data *ha)
2850 {
2851         if (ha->fce)
2852                 dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
2853                     ha->fce_dma);
2854
2855         if (ha->fw_dump) {
2856                 if (ha->eft)
2857                         dma_free_coherent(&ha->pdev->dev,
2858                             ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2859                 vfree(ha->fw_dump);
2860         }
2861         ha->fce = NULL;
2862         ha->fce_dma = 0;
2863         ha->eft = NULL;
2864         ha->eft_dma = 0;
2865         ha->fw_dump = NULL;
2866         ha->fw_dumped = 0;
2867         ha->fw_dump_reading = 0;
2868 }
2869
2870 /*
2871 * qla2x00_mem_free
2872 *      Frees all adapter allocated memory.
2873 *
2874 * Input:
2875 *      ha = adapter block pointer.
2876 */
2877 static void
2878 qla2x00_mem_free(struct qla_hw_data *ha)
2879 {
2880         qla2x00_free_fw_dump(ha);
2881
2882         if (ha->srb_mempool)
2883                 mempool_destroy(ha->srb_mempool);
2884
2885         if (ha->dcbx_tlv)
2886                 dma_free_coherent(&ha->pdev->dev, DCBX_TLV_DATA_SIZE,
2887                     ha->dcbx_tlv, ha->dcbx_tlv_dma);
2888
2889         if (ha->xgmac_data)
2890                 dma_free_coherent(&ha->pdev->dev, XGMAC_DATA_SIZE,
2891                     ha->xgmac_data, ha->xgmac_data_dma);
2892
2893         if (ha->sns_cmd)
2894                 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2895                 ha->sns_cmd, ha->sns_cmd_dma);
2896
2897         if (ha->ct_sns)
2898                 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2899                 ha->ct_sns, ha->ct_sns_dma);
2900
2901         if (ha->sfp_data)
2902                 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2903
2904         if (ha->edc_data)
2905                 dma_pool_free(ha->s_dma_pool, ha->edc_data, ha->edc_data_dma);
2906
2907         if (ha->ms_iocb)
2908                 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2909
2910         if (ha->ex_init_cb)
2911                 dma_pool_free(ha->s_dma_pool,
2912                         ha->ex_init_cb, ha->ex_init_cb_dma);
2913
2914         if (ha->async_pd)
2915                 dma_pool_free(ha->s_dma_pool, ha->async_pd, ha->async_pd_dma);
2916
2917         if (ha->s_dma_pool)
2918                 dma_pool_destroy(ha->s_dma_pool);
2919
2920         if (ha->gid_list)
2921                 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2922                 ha->gid_list_dma);
2923
2924         if (IS_QLA82XX(ha)) {
2925                 if (!list_empty(&ha->gbl_dsd_list)) {
2926                         struct dsd_dma *dsd_ptr, *tdsd_ptr;
2927
2928                         /* clean up allocated prev pool */
2929                         list_for_each_entry_safe(dsd_ptr,
2930                                 tdsd_ptr, &ha->gbl_dsd_list, list) {
2931                                 dma_pool_free(ha->dl_dma_pool,
2932                                 dsd_ptr->dsd_addr, dsd_ptr->dsd_list_dma);
2933                                 list_del(&dsd_ptr->list);
2934                                 kfree(dsd_ptr);
2935                         }
2936                 }
2937         }
2938
2939         if (ha->dl_dma_pool)
2940                 dma_pool_destroy(ha->dl_dma_pool);
2941
2942         if (ha->fcp_cmnd_dma_pool)
2943                 dma_pool_destroy(ha->fcp_cmnd_dma_pool);
2944
2945         if (ha->ctx_mempool)
2946                 mempool_destroy(ha->ctx_mempool);
2947
2948         if (ha->init_cb)
2949                 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
2950                         ha->init_cb, ha->init_cb_dma);
2951         vfree(ha->optrom_buffer);
2952         kfree(ha->nvram);
2953         kfree(ha->npiv_info);
2954
2955         ha->srb_mempool = NULL;
2956         ha->ctx_mempool = NULL;
2957         ha->sns_cmd = NULL;
2958         ha->sns_cmd_dma = 0;
2959         ha->ct_sns = NULL;
2960         ha->ct_sns_dma = 0;
2961         ha->ms_iocb = NULL;
2962         ha->ms_iocb_dma = 0;
2963         ha->init_cb = NULL;
2964         ha->init_cb_dma = 0;
2965         ha->ex_init_cb = NULL;
2966         ha->ex_init_cb_dma = 0;
2967         ha->async_pd = NULL;
2968         ha->async_pd_dma = 0;
2969
2970         ha->s_dma_pool = NULL;
2971         ha->dl_dma_pool = NULL;
2972         ha->fcp_cmnd_dma_pool = NULL;
2973
2974         ha->gid_list = NULL;
2975         ha->gid_list_dma = 0;
2976 }
2977
2978 struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht,
2979                                                 struct qla_hw_data *ha)
2980 {
2981         struct Scsi_Host *host;
2982         struct scsi_qla_host *vha = NULL;
2983
2984         host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
2985         if (host == NULL) {
2986                 printk(KERN_WARNING
2987                 "qla2xxx: Couldn't allocate host from scsi layer!\n");
2988                 goto fail;
2989         }
2990
2991         /* Clear our data area */
2992         vha = shost_priv(host);
2993         memset(vha, 0, sizeof(scsi_qla_host_t));
2994
2995         vha->host = host;
2996         vha->host_no = host->host_no;
2997         vha->hw = ha;
2998
2999         INIT_LIST_HEAD(&vha->vp_fcports);
3000         INIT_LIST_HEAD(&vha->work_list);
3001         INIT_LIST_HEAD(&vha->list);
3002
3003         spin_lock_init(&vha->work_lock);
3004
3005         sprintf(vha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, vha->host_no);
3006         return vha;
3007
3008 fail:
3009         return vha;
3010 }
3011
3012 static struct qla_work_evt *
3013 qla2x00_alloc_work(struct scsi_qla_host *vha, enum qla_work_type type)
3014 {
3015         struct qla_work_evt *e;
3016         uint8_t bail;
3017
3018         QLA_VHA_MARK_BUSY(vha, bail);
3019         if (bail)
3020                 return NULL;
3021
3022         e = kzalloc(sizeof(struct qla_work_evt), GFP_ATOMIC);
3023         if (!e) {
3024                 QLA_VHA_MARK_NOT_BUSY(vha);
3025                 return NULL;
3026         }
3027
3028         INIT_LIST_HEAD(&e->list);
3029         e->type = type;
3030         e->flags = QLA_EVT_FLAG_FREE;
3031         return e;
3032 }
3033
3034 static int
3035 qla2x00_post_work(struct scsi_qla_host *vha, struct qla_work_evt *e)
3036 {
3037         unsigned long flags;
3038
3039         spin_lock_irqsave(&vha->work_lock, flags);
3040         list_add_tail(&e->list, &vha->work_list);
3041         spin_unlock_irqrestore(&vha->work_lock, flags);
3042         qla2xxx_wake_dpc(vha);
3043
3044         return QLA_SUCCESS;
3045 }
3046
3047 int
3048 qla2x00_post_aen_work(struct scsi_qla_host *vha, enum fc_host_event_code code,
3049     u32 data)
3050 {
3051         struct qla_work_evt *e;
3052
3053         e = qla2x00_alloc_work(vha, QLA_EVT_AEN);
3054         if (!e)
3055                 return QLA_FUNCTION_FAILED;
3056
3057         e->u.aen.code = code;
3058         e->u.aen.data = data;
3059         return qla2x00_post_work(vha, e);
3060 }
3061
3062 int
3063 qla2x00_post_idc_ack_work(struct scsi_qla_host *vha, uint16_t *mb)
3064 {
3065         struct qla_work_evt *e;
3066
3067         e = qla2x00_alloc_work(vha, QLA_EVT_IDC_ACK);
3068         if (!e)
3069                 return QLA_FUNCTION_FAILED;
3070
3071         memcpy(e->u.idc_ack.mb, mb, QLA_IDC_ACK_REGS * sizeof(uint16_t));
3072         return qla2x00_post_work(vha, e);
3073 }
3074
3075 #define qla2x00_post_async_work(name, type)     \
3076 int qla2x00_post_async_##name##_work(           \
3077     struct scsi_qla_host *vha,                  \
3078     fc_port_t *fcport, uint16_t *data)          \
3079 {                                               \
3080         struct qla_work_evt *e;                 \
3081                                                 \
3082         e = qla2x00_alloc_work(vha, type);      \
3083         if (!e)                                 \
3084                 return QLA_FUNCTION_FAILED;     \
3085                                                 \
3086         e->u.logio.fcport = fcport;             \
3087         if (data) {                             \
3088                 e->u.logio.data[0] = data[0];   \
3089                 e->u.logio.data[1] = data[1];   \
3090         }                                       \
3091         return qla2x00_post_work(vha, e);       \
3092 }
3093
3094 qla2x00_post_async_work(login, QLA_EVT_ASYNC_LOGIN);
3095 qla2x00_post_async_work(login_done, QLA_EVT_ASYNC_LOGIN_DONE);
3096 qla2x00_post_async_work(logout, QLA_EVT_ASYNC_LOGOUT);
3097 qla2x00_post_async_work(logout_done, QLA_EVT_ASYNC_LOGOUT_DONE);
3098 qla2x00_post_async_work(adisc, QLA_EVT_ASYNC_ADISC);
3099 qla2x00_post_async_work(adisc_done, QLA_EVT_ASYNC_ADISC_DONE);
3100
3101 int
3102 qla2x00_post_uevent_work(struct scsi_qla_host *vha, u32 code)
3103 {
3104         struct qla_work_evt *e;
3105
3106         e = qla2x00_alloc_work(vha, QLA_EVT_UEVENT);
3107         if (!e)
3108                 return QLA_FUNCTION_FAILED;
3109
3110         e->u.uevent.code = code;
3111         return qla2x00_post_work(vha, e);
3112 }
3113
3114 static void
3115 qla2x00_uevent_emit(struct scsi_qla_host *vha, u32 code)
3116 {
3117         char event_string[40];
3118         char *envp[] = { event_string, NULL };
3119
3120         switch (code) {
3121         case QLA_UEVENT_CODE_FW_DUMP:
3122                 snprintf(event_string, sizeof(event_string), "FW_DUMP=%ld",
3123                     vha->host_no);
3124                 break;
3125         default:
3126                 /* do nothing */
3127                 break;
3128         }
3129         kobject_uevent_env(&vha->hw->pdev->dev.kobj, KOBJ_CHANGE, envp);
3130 }
3131
3132 void
3133 qla2x00_do_work(struct scsi_qla_host *vha)
3134 {
3135         struct qla_work_evt *e, *tmp;
3136         unsigned long flags;
3137         LIST_HEAD(work);
3138
3139         spin_lock_irqsave(&vha->work_lock, flags);
3140         list_splice_init(&vha->work_list, &work);
3141         spin_unlock_irqrestore(&vha->work_lock, flags);
3142
3143         list_for_each_entry_safe(e, tmp, &work, list) {
3144                 list_del_init(&e->list);
3145
3146                 switch (e->type) {
3147                 case QLA_EVT_AEN:
3148                         fc_host_post_event(vha->host, fc_get_event_number(),
3149                             e->u.aen.code, e->u.aen.data);
3150                         break;
3151                 case QLA_EVT_IDC_ACK:
3152                         qla81xx_idc_ack(vha, e->u.idc_ack.mb);
3153                         break;
3154                 case QLA_EVT_ASYNC_LOGIN:
3155                         qla2x00_async_login(vha, e->u.logio.fcport,
3156                             e->u.logio.data);
3157                         break;
3158                 case QLA_EVT_ASYNC_LOGIN_DONE:
3159                         qla2x00_async_login_done(vha, e->u.logio.fcport,
3160                             e->u.logio.data);
3161                         break;
3162                 case QLA_EVT_ASYNC_LOGOUT:
3163                         qla2x00_async_logout(vha, e->u.logio.fcport);
3164                         break;
3165                 case QLA_EVT_ASYNC_LOGOUT_DONE:
3166                         qla2x00_async_logout_done(vha, e->u.logio.fcport,
3167                             e->u.logio.data);
3168                         break;
3169                 case QLA_EVT_ASYNC_ADISC:
3170                         qla2x00_async_adisc(vha, e->u.logio.fcport,
3171                             e->u.logio.data);
3172                         break;
3173                 case QLA_EVT_ASYNC_ADISC_DONE:
3174                         qla2x00_async_adisc_done(vha, e->u.logio.fcport,
3175                             e->u.logio.data);
3176                         break;
3177                 case QLA_EVT_UEVENT:
3178                         qla2x00_uevent_emit(vha, e->u.uevent.code);
3179                         break;
3180                 }
3181                 if (e->flags & QLA_EVT_FLAG_FREE)
3182                         kfree(e);
3183
3184                 /* For each work completed decrement vha ref count */
3185                 QLA_VHA_MARK_NOT_BUSY(vha);
3186         }
3187 }
3188
3189 /* Relogins all the fcports of a vport
3190  * Context: dpc thread
3191  */
3192 void qla2x00_relogin(struct scsi_qla_host *vha)
3193 {
3194         fc_port_t       *fcport;
3195         int status;
3196         uint16_t        next_loopid = 0;
3197         struct qla_hw_data *ha = vha->hw;
3198         uint16_t data[2];
3199
3200         list_for_each_entry(fcport, &vha->vp_fcports, list) {
3201         /*
3202          * If the port is not ONLINE then try to login
3203          * to it if we haven't run out of retries.
3204          */
3205                 if (atomic_read(&fcport->state) != FCS_ONLINE &&
3206                     fcport->login_retry && !(fcport->flags & FCF_ASYNC_SENT)) {
3207                         fcport->login_retry--;
3208                         if (fcport->flags & FCF_FABRIC_DEVICE) {
3209                                 if (fcport->flags & FCF_FCP2_DEVICE)
3210                                         ha->isp_ops->fabric_logout(vha,
3211                                                         fcport->loop_id,
3212                                                         fcport->d_id.b.domain,
3213                                                         fcport->d_id.b.area,
3214                                                         fcport->d_id.b.al_pa);
3215
3216                                 if (IS_ALOGIO_CAPABLE(ha)) {
3217                                         fcport->flags |= FCF_ASYNC_SENT;
3218                                         data[0] = 0;
3219                                         data[1] = QLA_LOGIO_LOGIN_RETRIED;
3220                                         status = qla2x00_post_async_login_work(
3221                                             vha, fcport, data);
3222                                         if (status == QLA_SUCCESS)
3223                                                 continue;
3224                                         /* Attempt a retry. */
3225                                         status = 1;
3226                                 } else
3227                                         status = qla2x00_fabric_login(vha,
3228                                             fcport, &next_loopid);
3229                         } else
3230                                 status = qla2x00_local_device_login(vha,
3231                                                                 fcport);
3232
3233                         if (status == QLA_SUCCESS) {
3234                                 fcport->old_loop_id = fcport->loop_id;
3235
3236                                 DEBUG(printk("scsi(%ld): port login OK: logged "
3237                                 "in ID 0x%x\n", vha->host_no, fcport->loop_id));
3238
3239                                 qla2x00_update_fcport(vha, fcport);
3240
3241                         } else if (status == 1) {
3242                                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
3243                                 /* retry the login again */
3244                                 DEBUG(printk("scsi(%ld): Retrying"
3245                                 " %d login again loop_id 0x%x\n",
3246                                 vha->host_no, fcport->login_retry,
3247                                                 fcport->loop_id));
3248                         } else {
3249                                 fcport->login_retry = 0;
3250                         }
3251
3252                         if (fcport->login_retry == 0 && status != QLA_SUCCESS)
3253                                 fcport->loop_id = FC_NO_LOOP_ID;
3254                 }
3255                 if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
3256                         break;
3257         }
3258 }
3259
3260 /**************************************************************************
3261 * qla2x00_do_dpc
3262 *   This kernel thread is a task that is schedule by the interrupt handler
3263 *   to perform the background processing for interrupts.
3264 *
3265 * Notes:
3266 * This task always run in the context of a kernel thread.  It
3267 * is kick-off by the driver's detect code and starts up
3268 * up one per adapter. It immediately goes to sleep and waits for
3269 * some fibre event.  When either the interrupt handler or
3270 * the timer routine detects a event it will one of the task
3271 * bits then wake us up.
3272 **************************************************************************/
3273 static int
3274 qla2x00_do_dpc(void *data)
3275 {
3276         int             rval;
3277         scsi_qla_host_t *base_vha;
3278         struct qla_hw_data *ha;
3279
3280         ha = (struct qla_hw_data *)data;
3281         base_vha = pci_get_drvdata(ha->pdev);
3282
3283         set_user_nice(current, -20);
3284
3285         set_current_state(TASK_INTERRUPTIBLE);
3286         while (!kthread_should_stop()) {
3287                 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
3288
3289                 schedule();
3290                 __set_current_state(TASK_RUNNING);
3291
3292                 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
3293
3294                 /* Initialization not yet finished. Don't do anything yet. */
3295                 if (!base_vha->flags.init_done)
3296                         continue;
3297
3298                 if (ha->flags.eeh_busy) {
3299                         DEBUG17(qla_printk(KERN_WARNING, ha,
3300                             "qla2x00_do_dpc: dpc_flags: %lx\n",
3301                             base_vha->dpc_flags));
3302                         continue;
3303                 }
3304
3305                 DEBUG3(printk("scsi(%ld): DPC handler\n", base_vha->host_no));
3306
3307                 ha->dpc_active = 1;
3308
3309                 if (ha->flags.mbox_busy) {
3310                         ha->dpc_active = 0;
3311                         continue;
3312                 }
3313
3314                 qla2x00_do_work(base_vha);
3315
3316                 if (IS_QLA82XX(ha)) {
3317                         if (test_and_clear_bit(ISP_UNRECOVERABLE,
3318                                 &base_vha->dpc_flags)) {
3319                                 qla82xx_idc_lock(ha);
3320                                 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3321                                         QLA82XX_DEV_FAILED);
3322                                 qla82xx_idc_unlock(ha);
3323                                 qla_printk(KERN_INFO, ha,
3324                                         "HW State: FAILED\n");
3325                                 qla82xx_device_state_handler(base_vha);
3326                                 continue;
3327                         }
3328
3329                         if (test_and_clear_bit(FCOE_CTX_RESET_NEEDED,
3330                                 &base_vha->dpc_flags)) {
3331
3332                                 DEBUG(printk(KERN_INFO
3333                                         "scsi(%ld): dpc: sched "
3334                                         "qla82xx_fcoe_ctx_reset ha = %p\n",
3335                                         base_vha->host_no, ha));
3336                                 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
3337                                         &base_vha->dpc_flags))) {
3338                                         if (qla82xx_fcoe_ctx_reset(base_vha)) {
3339                                                 /* FCoE-ctx reset failed.
3340                                                  * Escalate to chip-reset
3341                                                  */
3342                                                 set_bit(ISP_ABORT_NEEDED,
3343                                                         &base_vha->dpc_flags);
3344                                         }
3345                                         clear_bit(ABORT_ISP_ACTIVE,
3346                                                 &base_vha->dpc_flags);
3347                                 }
3348
3349                                 DEBUG(printk("scsi(%ld): dpc:"
3350                                         " qla82xx_fcoe_ctx_reset end\n",
3351                                         base_vha->host_no));
3352                         }
3353                 }
3354
3355                 if (test_and_clear_bit(ISP_ABORT_NEEDED,
3356                                                 &base_vha->dpc_flags)) {
3357
3358                         DEBUG(printk("scsi(%ld): dpc: sched "
3359                             "qla2x00_abort_isp ha = %p\n",
3360                             base_vha->host_no, ha));
3361                         if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
3362                             &base_vha->dpc_flags))) {
3363
3364                                 if (ha->isp_ops->abort_isp(base_vha)) {
3365                                         /* failed. retry later */
3366                                         set_bit(ISP_ABORT_NEEDED,
3367                                             &base_vha->dpc_flags);
3368                                 }
3369                                 clear_bit(ABORT_ISP_ACTIVE,
3370                                                 &base_vha->dpc_flags);
3371                         }
3372
3373                         DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
3374                             base_vha->host_no));
3375                 }
3376
3377                 if (test_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags)) {
3378                         qla2x00_update_fcports(base_vha);
3379                         clear_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
3380                 }
3381
3382                 if (test_bit(ISP_QUIESCE_NEEDED, &base_vha->dpc_flags)) {
3383                         DEBUG(printk(KERN_INFO "scsi(%ld): dpc: sched "
3384                             "qla2x00_quiesce_needed ha = %p\n",
3385                             base_vha->host_no, ha));
3386                         qla82xx_device_state_handler(base_vha);
3387                         clear_bit(ISP_QUIESCE_NEEDED, &base_vha->dpc_flags);
3388                         if (!ha->flags.quiesce_owner) {
3389                                 qla2x00_perform_loop_resync(base_vha);
3390
3391                                 qla82xx_idc_lock(ha);
3392                                 qla82xx_clear_qsnt_ready(base_vha);
3393                                 qla82xx_idc_unlock(ha);
3394                         }
3395                 }
3396
3397                 if (test_and_clear_bit(RESET_MARKER_NEEDED,
3398                                                         &base_vha->dpc_flags) &&
3399                     (!(test_and_set_bit(RESET_ACTIVE, &base_vha->dpc_flags)))) {
3400
3401                         DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
3402                             base_vha->host_no));
3403
3404                         qla2x00_rst_aen(base_vha);
3405                         clear_bit(RESET_ACTIVE, &base_vha->dpc_flags);
3406                 }
3407
3408                 /* Retry each device up to login retry count */
3409                 if ((test_and_clear_bit(RELOGIN_NEEDED,
3410                                                 &base_vha->dpc_flags)) &&
3411                     !test_bit(LOOP_RESYNC_NEEDED, &base_vha->dpc_flags) &&
3412                     atomic_read(&base_vha->loop_state) != LOOP_DOWN) {
3413
3414                         DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
3415                                         base_vha->host_no));
3416                         qla2x00_relogin(base_vha);
3417
3418                         DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
3419                             base_vha->host_no));
3420                 }
3421
3422                 if (test_and_clear_bit(LOOP_RESYNC_NEEDED,
3423                                                         &base_vha->dpc_flags)) {
3424
3425                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
3426                                 base_vha->host_no));
3427
3428                         if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
3429                             &base_vha->dpc_flags))) {
3430
3431                                 rval = qla2x00_loop_resync(base_vha);
3432
3433                                 clear_bit(LOOP_RESYNC_ACTIVE,
3434                                                 &base_vha->dpc_flags);
3435                         }
3436
3437                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
3438                             base_vha->host_no));
3439                 }
3440
3441                 if (test_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags) &&
3442                     atomic_read(&base_vha->loop_state) == LOOP_READY) {
3443                         clear_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags);
3444                         qla2xxx_flash_npiv_conf(base_vha);
3445                 }
3446
3447                 if (!ha->interrupts_on)
3448                         ha->isp_ops->enable_intrs(ha);
3449
3450                 if (test_and_clear_bit(BEACON_BLINK_NEEDED,
3451                                         &base_vha->dpc_flags))
3452                         ha->isp_ops->beacon_blink(base_vha);
3453
3454                 qla2x00_do_dpc_all_vps(base_vha);
3455
3456                 ha->dpc_active = 0;
3457                 set_current_state(TASK_INTERRUPTIBLE);
3458         } /* End of while(1) */
3459         __set_current_state(TASK_RUNNING);
3460
3461         DEBUG(printk("scsi(%ld): DPC handler exiting\n", base_vha->host_no));
3462
3463         /*
3464          * Make sure that nobody tries to wake us up again.
3465          */
3466         ha->dpc_active = 0;
3467
3468         /* Cleanup any residual CTX SRBs. */
3469         qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
3470
3471         return 0;
3472 }
3473
3474 void
3475 qla2xxx_wake_dpc(struct scsi_qla_host *vha)
3476 {
3477         struct qla_hw_data *ha = vha->hw;
3478         struct task_struct *t = ha->dpc_thread;
3479
3480         if (!test_bit(UNLOADING, &vha->dpc_flags) && t)
3481                 wake_up_process(t);
3482 }
3483
3484 /*
3485 *  qla2x00_rst_aen
3486 *      Processes asynchronous reset.
3487 *
3488 * Input:
3489 *      ha  = adapter block pointer.
3490 */
3491 static void
3492 qla2x00_rst_aen(scsi_qla_host_t *vha)
3493 {
3494         if (vha->flags.online && !vha->flags.reset_active &&
3495             !atomic_read(&vha->loop_down_timer) &&
3496             !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) {
3497                 do {
3498                         clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
3499
3500                         /*
3501                          * Issue marker command only when we are going to start
3502                          * the I/O.
3503                          */
3504                         vha->marker_needed = 1;
3505                 } while (!atomic_read(&vha->loop_down_timer) &&
3506                     (test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags)));
3507         }
3508 }
3509
3510 static void
3511 qla2x00_sp_free_dma(srb_t *sp)
3512 {
3513         struct scsi_cmnd *cmd = sp->cmd;
3514         struct qla_hw_data *ha = sp->fcport->vha->hw;
3515
3516         if (sp->flags & SRB_DMA_VALID) {
3517                 scsi_dma_unmap(cmd);
3518                 sp->flags &= ~SRB_DMA_VALID;
3519         }
3520
3521         if (sp->flags & SRB_CRC_PROT_DMA_VALID) {
3522                 dma_unmap_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
3523                     scsi_prot_sg_count(cmd), cmd->sc_data_direction);
3524                 sp->flags &= ~SRB_CRC_PROT_DMA_VALID;
3525         }
3526
3527         if (sp->flags & SRB_CRC_CTX_DSD_VALID) {
3528                 /* List assured to be having elements */
3529                 qla2x00_clean_dsd_pool(ha, sp);
3530                 sp->flags &= ~SRB_CRC_CTX_DSD_VALID;
3531         }
3532
3533         if (sp->flags & SRB_CRC_CTX_DMA_VALID) {
3534                 dma_pool_free(ha->dl_dma_pool, sp->ctx,
3535                     ((struct crc_context *)sp->ctx)->crc_ctx_dma);
3536                 sp->flags &= ~SRB_CRC_CTX_DMA_VALID;
3537         }
3538
3539         CMD_SP(cmd) = NULL;
3540 }
3541
3542 static void
3543 qla2x00_sp_final_compl(struct qla_hw_data *ha, srb_t *sp)
3544 {
3545         struct scsi_cmnd *cmd = sp->cmd;
3546
3547         qla2x00_sp_free_dma(sp);
3548
3549         if (sp->flags & SRB_FCP_CMND_DMA_VALID) {
3550                 struct ct6_dsd *ctx = sp->ctx;
3551                 dma_pool_free(ha->fcp_cmnd_dma_pool, ctx->fcp_cmnd,
3552                         ctx->fcp_cmnd_dma);
3553                 list_splice(&ctx->dsd_list, &ha->gbl_dsd_list);
3554                 ha->gbl_dsd_inuse -= ctx->dsd_use_cnt;
3555                 ha->gbl_dsd_avail += ctx->dsd_use_cnt;
3556                 mempool_free(sp->ctx, ha->ctx_mempool);
3557                 sp->ctx = NULL;
3558         }
3559
3560         mempool_free(sp, ha->srb_mempool);
3561         cmd->scsi_done(cmd);
3562 }
3563
3564 void
3565 qla2x00_sp_compl(struct qla_hw_data *ha, srb_t *sp)
3566 {
3567         if (atomic_read(&sp->ref_count) == 0) {
3568                 DEBUG2(qla_printk(KERN_WARNING, ha,
3569                     "SP reference-count to ZERO -- sp=%p\n", sp));
3570                 DEBUG2(BUG());
3571                 return;
3572         }
3573         if (!atomic_dec_and_test(&sp->ref_count))
3574                 return;
3575         qla2x00_sp_final_compl(ha, sp);
3576 }
3577
3578 /**************************************************************************
3579 *   qla2x00_timer
3580 *
3581 * Description:
3582 *   One second timer
3583 *
3584 * Context: Interrupt
3585 ***************************************************************************/
3586 void
3587 qla2x00_timer(scsi_qla_host_t *vha)
3588 {
3589         unsigned long   cpu_flags = 0;
3590         int             start_dpc = 0;
3591         int             index;
3592         srb_t           *sp;
3593         uint16_t        w;
3594         struct qla_hw_data *ha = vha->hw;
3595         struct req_que *req;
3596
3597         if (ha->flags.eeh_busy) {
3598                 qla2x00_restart_timer(vha, WATCH_INTERVAL);
3599                 return;
3600         }
3601
3602         /* Hardware read to raise pending EEH errors during mailbox waits. */
3603         if (!pci_channel_offline(ha->pdev))
3604                 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
3605
3606         if (IS_QLA82XX(ha)) {
3607                 if (test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags))
3608                         start_dpc++;
3609                 qla82xx_watchdog(vha);
3610         }
3611
3612         /* Loop down handler. */
3613         if (atomic_read(&vha->loop_down_timer) > 0 &&
3614             !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
3615                 && vha->flags.online) {
3616
3617                 if (atomic_read(&vha->loop_down_timer) ==
3618                     vha->loop_down_abort_time) {
3619
3620                         DEBUG(printk("scsi(%ld): Loop Down - aborting the "
3621                             "queues before time expire\n",
3622                             vha->host_no));
3623
3624                         if (!IS_QLA2100(ha) && vha->link_down_timeout)
3625                                 atomic_set(&vha->loop_state, LOOP_DEAD);
3626
3627                         /*
3628                          * Schedule an ISP abort to return any FCP2-device
3629                          * commands.
3630                          */
3631                         /* NPIV - scan physical port only */
3632                         if (!vha->vp_idx) {
3633                                 spin_lock_irqsave(&ha->hardware_lock,
3634                                     cpu_flags);
3635                                 req = ha->req_q_map[0];
3636                                 for (index = 1;
3637                                     index < MAX_OUTSTANDING_COMMANDS;
3638                                     index++) {
3639                                         fc_port_t *sfcp;
3640
3641                                         sp = req->outstanding_cmds[index];
3642                                         if (!sp)
3643                                                 continue;
3644                                         if (sp->ctx && !IS_PROT_IO(sp))
3645                                                 continue;
3646                                         sfcp = sp->fcport;
3647                                         if (!(sfcp->flags & FCF_FCP2_DEVICE))
3648                                                 continue;
3649
3650                                         set_bit(ISP_ABORT_NEEDED,
3651                                                         &vha->dpc_flags);
3652                                         break;
3653                                 }
3654                                 spin_unlock_irqrestore(&ha->hardware_lock,
3655                                                                 cpu_flags);
3656                         }
3657                         start_dpc++;
3658                 }
3659
3660                 /* if the loop has been down for 4 minutes, reinit adapter */
3661                 if (atomic_dec_and_test(&vha->loop_down_timer) != 0) {
3662                         if (!(vha->device_flags & DFLG_NO_CABLE)) {
3663                                 DEBUG(printk("scsi(%ld): Loop down - "
3664                                     "aborting ISP.\n",
3665                                     vha->host_no));
3666                                 qla_printk(KERN_WARNING, ha,
3667                                     "Loop down - aborting ISP.\n");
3668
3669                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3670                         }
3671                 }
3672                 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
3673                     vha->host_no,
3674                     atomic_read(&vha->loop_down_timer)));
3675         }
3676
3677         /* Check if beacon LED needs to be blinked */
3678         if (ha->beacon_blink_led == 1) {
3679                 set_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags);
3680                 start_dpc++;
3681         }
3682
3683         /* Process any deferred work. */
3684         if (!list_empty(&vha->work_list))
3685                 start_dpc++;
3686
3687         /* Schedule the DPC routine if needed */
3688         if ((test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
3689             test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) ||
3690             test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags) ||
3691             start_dpc ||
3692             test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) ||
3693             test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags) ||
3694             test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags) ||
3695             test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) ||
3696             test_bit(VP_DPC_NEEDED, &vha->dpc_flags) ||
3697             test_bit(RELOGIN_NEEDED, &vha->dpc_flags)))
3698                 qla2xxx_wake_dpc(vha);
3699
3700         qla2x00_restart_timer(vha, WATCH_INTERVAL);
3701 }
3702
3703 /* Firmware interface routines. */
3704
3705 #define FW_BLOBS        8
3706 #define FW_ISP21XX      0
3707 #define FW_ISP22XX      1
3708 #define FW_ISP2300      2
3709 #define FW_ISP2322      3
3710 #define FW_ISP24XX      4
3711 #define FW_ISP25XX      5
3712 #define FW_ISP81XX      6
3713 #define FW_ISP82XX      7
3714
3715 #define FW_FILE_ISP21XX "ql2100_fw.bin"
3716 #define FW_FILE_ISP22XX "ql2200_fw.bin"
3717 #define FW_FILE_ISP2300 "ql2300_fw.bin"
3718 #define FW_FILE_ISP2322 "ql2322_fw.bin"
3719 #define FW_FILE_ISP24XX "ql2400_fw.bin"
3720 #define FW_FILE_ISP25XX "ql2500_fw.bin"
3721 #define FW_FILE_ISP81XX "ql8100_fw.bin"
3722 #define FW_FILE_ISP82XX "ql8200_fw.bin"
3723
3724 static DEFINE_MUTEX(qla_fw_lock);
3725
3726 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
3727         { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
3728         { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
3729         { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
3730         { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
3731         { .name = FW_FILE_ISP24XX, },
3732         { .name = FW_FILE_ISP25XX, },
3733         { .name = FW_FILE_ISP81XX, },
3734         { .name = FW_FILE_ISP82XX, },
3735 };
3736
3737 struct fw_blob *
3738 qla2x00_request_firmware(scsi_qla_host_t *vha)
3739 {
3740         struct qla_hw_data *ha = vha->hw;
3741         struct fw_blob *blob;
3742
3743         blob = NULL;
3744         if (IS_QLA2100(ha)) {
3745                 blob = &qla_fw_blobs[FW_ISP21XX];
3746         } else if (IS_QLA2200(ha)) {
3747                 blob = &qla_fw_blobs[FW_ISP22XX];
3748         } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
3749                 blob = &qla_fw_blobs[FW_ISP2300];
3750         } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
3751                 blob = &qla_fw_blobs[FW_ISP2322];
3752         } else if (IS_QLA24XX_TYPE(ha)) {
3753                 blob = &qla_fw_blobs[FW_ISP24XX];
3754         } else if (IS_QLA25XX(ha)) {
3755                 blob = &qla_fw_blobs[FW_ISP25XX];
3756         } else if (IS_QLA81XX(ha)) {
3757                 blob = &qla_fw_blobs[FW_ISP81XX];
3758         } else if (IS_QLA82XX(ha)) {
3759                 blob = &qla_fw_blobs[FW_ISP82XX];
3760         }
3761
3762         mutex_lock(&qla_fw_lock);
3763         if (blob->fw)
3764                 goto out;
3765
3766         if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
3767                 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
3768                     "(%s).\n", vha->host_no, blob->name));
3769                 blob->fw = NULL;
3770                 blob = NULL;
3771                 goto out;
3772         }
3773
3774 out:
3775         mutex_unlock(&qla_fw_lock);
3776         return blob;
3777 }
3778
3779 static void
3780 qla2x00_release_firmware(void)
3781 {
3782         int idx;
3783
3784         mutex_lock(&qla_fw_lock);
3785         for (idx = 0; idx < FW_BLOBS; idx++)
3786                 if (qla_fw_blobs[idx].fw)
3787                         release_firmware(qla_fw_blobs[idx].fw);
3788         mutex_unlock(&qla_fw_lock);
3789 }
3790
3791 static pci_ers_result_t
3792 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
3793 {
3794         scsi_qla_host_t *vha = pci_get_drvdata(pdev);
3795         struct qla_hw_data *ha = vha->hw;
3796
3797         DEBUG2(qla_printk(KERN_WARNING, ha, "error_detected:state %x\n",
3798             state));
3799
3800         switch (state) {
3801         case pci_channel_io_normal:
3802                 ha->flags.eeh_busy = 0;
3803                 return PCI_ERS_RESULT_CAN_RECOVER;
3804         case pci_channel_io_frozen:
3805                 ha->flags.eeh_busy = 1;
3806                 /* For ISP82XX complete any pending mailbox cmd */
3807                 if (IS_QLA82XX(ha)) {
3808                         ha->flags.fw_hung = 1;
3809                         if (ha->flags.mbox_busy) {
3810                                 ha->flags.mbox_int = 1;
3811                                 DEBUG2(qla_printk(KERN_ERR, ha,
3812                                         "Due to pci channel io frozen, doing premature "
3813                                         "completion of mbx command\n"));
3814                                 complete(&ha->mbx_intr_comp);
3815                         }
3816                 }
3817                 qla2x00_free_irqs(vha);
3818                 pci_disable_device(pdev);
3819                 /* Return back all IOs */
3820                 qla2x00_abort_all_cmds(vha, DID_RESET << 16);
3821                 return PCI_ERS_RESULT_NEED_RESET;
3822         case pci_channel_io_perm_failure:
3823                 ha->flags.pci_channel_io_perm_failure = 1;
3824                 qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
3825                 return PCI_ERS_RESULT_DISCONNECT;
3826         }
3827         return PCI_ERS_RESULT_NEED_RESET;
3828 }
3829
3830 static pci_ers_result_t
3831 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
3832 {
3833         int risc_paused = 0;
3834         uint32_t stat;
3835         unsigned long flags;
3836         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3837         struct qla_hw_data *ha = base_vha->hw;
3838         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3839         struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
3840
3841         if (IS_QLA82XX(ha))
3842                 return PCI_ERS_RESULT_RECOVERED;
3843
3844         spin_lock_irqsave(&ha->hardware_lock, flags);
3845         if (IS_QLA2100(ha) || IS_QLA2200(ha)){
3846                 stat = RD_REG_DWORD(&reg->hccr);
3847                 if (stat & HCCR_RISC_PAUSE)
3848                         risc_paused = 1;
3849         } else if (IS_QLA23XX(ha)) {
3850                 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
3851                 if (stat & HSR_RISC_PAUSED)
3852                         risc_paused = 1;
3853         } else if (IS_FWI2_CAPABLE(ha)) {
3854                 stat = RD_REG_DWORD(&reg24->host_status);
3855                 if (stat & HSRX_RISC_PAUSED)
3856                         risc_paused = 1;
3857         }
3858         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3859
3860         if (risc_paused) {
3861                 qla_printk(KERN_INFO, ha, "RISC paused -- mmio_enabled, "
3862                     "Dumping firmware!\n");
3863                 ha->isp_ops->fw_dump(base_vha, 0);
3864
3865                 return PCI_ERS_RESULT_NEED_RESET;
3866         } else
3867                 return PCI_ERS_RESULT_RECOVERED;
3868 }
3869
3870 uint32_t qla82xx_error_recovery(scsi_qla_host_t *base_vha)
3871 {
3872         uint32_t rval = QLA_FUNCTION_FAILED;
3873         uint32_t drv_active = 0;
3874         struct qla_hw_data *ha = base_vha->hw;
3875         int fn;
3876         struct pci_dev *other_pdev = NULL;
3877
3878         DEBUG17(qla_printk(KERN_INFO, ha,
3879             "scsi(%ld): In qla82xx_error_recovery\n", base_vha->host_no));
3880
3881         set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
3882
3883         if (base_vha->flags.online) {
3884                 /* Abort all outstanding commands,
3885                  * so as to be requeued later */
3886                 qla2x00_abort_isp_cleanup(base_vha);
3887         }
3888
3889
3890         fn = PCI_FUNC(ha->pdev->devfn);
3891         while (fn > 0) {
3892                 fn--;
3893                 DEBUG17(qla_printk(KERN_INFO, ha,
3894                     "Finding pci device at function = 0x%x\n", fn));
3895                 other_pdev =
3896                     pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus),
3897                     ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
3898                     fn));
3899
3900                 if (!other_pdev)
3901                         continue;
3902                 if (atomic_read(&other_pdev->enable_cnt)) {
3903                         DEBUG17(qla_printk(KERN_INFO, ha,
3904                             "Found PCI func availabe and enabled at 0x%x\n",
3905                             fn));
3906                         pci_dev_put(other_pdev);
3907                         break;
3908                 }
3909                 pci_dev_put(other_pdev);
3910         }
3911
3912         if (!fn) {
3913                 /* Reset owner */
3914                 DEBUG17(qla_printk(KERN_INFO, ha,
3915                     "This devfn is reset owner = 0x%x\n", ha->pdev->devfn));
3916                 qla82xx_idc_lock(ha);
3917
3918                 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3919                     QLA82XX_DEV_INITIALIZING);
3920
3921                 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION,
3922                     QLA82XX_IDC_VERSION);
3923
3924                 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3925                 DEBUG17(qla_printk(KERN_INFO, ha,
3926                     "drv_active = 0x%x\n", drv_active));
3927
3928                 qla82xx_idc_unlock(ha);
3929                 /* Reset if device is not already reset
3930                  * drv_active would be 0 if a reset has already been done
3931                  */
3932                 if (drv_active)
3933                         rval = qla82xx_start_firmware(base_vha);
3934                 else
3935                         rval = QLA_SUCCESS;
3936                 qla82xx_idc_lock(ha);
3937
3938                 if (rval != QLA_SUCCESS) {
3939                         qla_printk(KERN_INFO, ha, "HW State: FAILED\n");
3940                         qla82xx_clear_drv_active(ha);
3941                         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3942                             QLA82XX_DEV_FAILED);
3943                 } else {
3944                         qla_printk(KERN_INFO, ha, "HW State: READY\n");
3945                         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3946                             QLA82XX_DEV_READY);
3947                         qla82xx_idc_unlock(ha);
3948                         ha->flags.fw_hung = 0;
3949                         rval = qla82xx_restart_isp(base_vha);
3950                         qla82xx_idc_lock(ha);
3951                         /* Clear driver state register */
3952                         qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, 0);
3953                         qla82xx_set_drv_active(base_vha);
3954                 }
3955                 qla82xx_idc_unlock(ha);
3956         } else {
3957                 DEBUG17(qla_printk(KERN_INFO, ha,
3958                     "This devfn is not reset owner = 0x%x\n", ha->pdev->devfn));
3959                 if ((qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE) ==
3960                     QLA82XX_DEV_READY)) {
3961                         ha->flags.fw_hung = 0;
3962                         rval = qla82xx_restart_isp(base_vha);
3963                         qla82xx_idc_lock(ha);
3964                         qla82xx_set_drv_active(base_vha);
3965                         qla82xx_idc_unlock(ha);
3966                 }
3967         }
3968         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
3969
3970         return rval;
3971 }
3972
3973 static pci_ers_result_t
3974 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
3975 {
3976         pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
3977         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3978         struct qla_hw_data *ha = base_vha->hw;
3979         struct rsp_que *rsp;
3980         int rc, retries = 10;
3981
3982         DEBUG17(qla_printk(KERN_WARNING, ha, "slot_reset\n"));
3983
3984         /* Workaround: qla2xxx driver which access hardware earlier
3985          * needs error state to be pci_channel_io_online.
3986          * Otherwise mailbox command timesout.
3987          */
3988         pdev->error_state = pci_channel_io_normal;
3989
3990         pci_restore_state(pdev);
3991
3992         /* pci_restore_state() clears the saved_state flag of the device
3993          * save restored state which resets saved_state flag
3994          */
3995         pci_save_state(pdev);
3996
3997         if (ha->mem_only)
3998                 rc = pci_enable_device_mem(pdev);
3999         else
4000                 rc = pci_enable_device(pdev);
4001
4002         if (rc) {
4003                 qla_printk(KERN_WARNING, ha,
4004                     "Can't re-enable PCI device after reset.\n");
4005                 goto exit_slot_reset;
4006         }
4007
4008         rsp = ha->rsp_q_map[0];
4009         if (qla2x00_request_irqs(ha, rsp))
4010                 goto exit_slot_reset;
4011
4012         if (ha->isp_ops->pci_config(base_vha))
4013                 goto exit_slot_reset;
4014
4015         if (IS_QLA82XX(ha)) {
4016                 if (qla82xx_error_recovery(base_vha) == QLA_SUCCESS) {
4017                         ret = PCI_ERS_RESULT_RECOVERED;
4018                         goto exit_slot_reset;
4019                 } else
4020                         goto exit_slot_reset;
4021         }
4022
4023         while (ha->flags.mbox_busy && retries--)
4024                 msleep(1000);
4025
4026         set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
4027         if (ha->isp_ops->abort_isp(base_vha) == QLA_SUCCESS)
4028                 ret =  PCI_ERS_RESULT_RECOVERED;
4029         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
4030
4031
4032 exit_slot_reset:
4033         DEBUG17(qla_printk(KERN_WARNING, ha,
4034             "slot_reset-return:ret=%x\n", ret));
4035
4036         return ret;
4037 }
4038
4039 static void
4040 qla2xxx_pci_resume(struct pci_dev *pdev)
4041 {
4042         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
4043         struct qla_hw_data *ha = base_vha->hw;
4044         int ret;
4045
4046         DEBUG17(qla_printk(KERN_WARNING, ha, "pci_resume\n"));
4047
4048         ret = qla2x00_wait_for_hba_online(base_vha);
4049         if (ret != QLA_SUCCESS) {
4050                 qla_printk(KERN_ERR, ha,
4051                     "the device failed to resume I/O "
4052                     "from slot/link_reset");
4053         }
4054
4055         pci_cleanup_aer_uncorrect_error_status(pdev);
4056
4057         ha->flags.eeh_busy = 0;
4058 }
4059
4060 static struct pci_error_handlers qla2xxx_err_handler = {
4061         .error_detected = qla2xxx_pci_error_detected,
4062         .mmio_enabled = qla2xxx_pci_mmio_enabled,
4063         .slot_reset = qla2xxx_pci_slot_reset,
4064         .resume = qla2xxx_pci_resume,
4065 };
4066
4067 static struct pci_device_id qla2xxx_pci_tbl[] = {
4068         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
4069         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
4070         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
4071         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
4072         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
4073         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
4074         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
4075         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
4076         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
4077         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) },
4078         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
4079         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
4080         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
4081         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8001) },
4082         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8021) },
4083         { 0 },
4084 };
4085 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
4086
4087 static struct pci_driver qla2xxx_pci_driver = {
4088         .name           = QLA2XXX_DRIVER_NAME,
4089         .driver         = {
4090                 .owner          = THIS_MODULE,
4091         },
4092         .id_table       = qla2xxx_pci_tbl,
4093         .probe          = qla2x00_probe_one,
4094         .remove         = qla2x00_remove_one,
4095         .shutdown       = qla2x00_shutdown,
4096         .err_handler    = &qla2xxx_err_handler,
4097 };
4098
4099 static struct file_operations apidev_fops = {
4100         .owner = THIS_MODULE,
4101         .llseek = noop_llseek,
4102 };
4103
4104 /**
4105  * qla2x00_module_init - Module initialization.
4106  **/
4107 static int __init
4108 qla2x00_module_init(void)
4109 {
4110         int ret = 0;
4111
4112         /* Allocate cache for SRBs. */
4113         srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
4114             SLAB_HWCACHE_ALIGN, NULL);
4115         if (srb_cachep == NULL) {
4116                 printk(KERN_ERR
4117                     "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
4118                 return -ENOMEM;
4119         }
4120
4121         /* Derive version string. */
4122         strcpy(qla2x00_version_str, QLA2XXX_VERSION);
4123         if (ql2xextended_error_logging)
4124                 strcat(qla2x00_version_str, "-debug");
4125
4126         qla2xxx_transport_template =
4127             fc_attach_transport(&qla2xxx_transport_functions);
4128         if (!qla2xxx_transport_template) {
4129                 kmem_cache_destroy(srb_cachep);
4130                 return -ENODEV;
4131         }
4132
4133         apidev_major = register_chrdev(0, QLA2XXX_APIDEV, &apidev_fops);
4134         if (apidev_major < 0) {
4135                 printk(KERN_WARNING "qla2xxx: Unable to register char device "
4136                     "%s\n", QLA2XXX_APIDEV);
4137         }
4138
4139         qla2xxx_transport_vport_template =
4140             fc_attach_transport(&qla2xxx_transport_vport_functions);
4141         if (!qla2xxx_transport_vport_template) {
4142                 kmem_cache_destroy(srb_cachep);
4143                 fc_release_transport(qla2xxx_transport_template);
4144                 return -ENODEV;
4145         }
4146
4147         printk(KERN_INFO "QLogic Fibre Channel HBA Driver: %s\n",
4148             qla2x00_version_str);
4149         ret = pci_register_driver(&qla2xxx_pci_driver);
4150         if (ret) {
4151                 kmem_cache_destroy(srb_cachep);
4152                 fc_release_transport(qla2xxx_transport_template);
4153                 fc_release_transport(qla2xxx_transport_vport_template);
4154         }
4155         return ret;
4156 }
4157
4158 /**
4159  * qla2x00_module_exit - Module cleanup.
4160  **/
4161 static void __exit
4162 qla2x00_module_exit(void)
4163 {
4164         unregister_chrdev(apidev_major, QLA2XXX_APIDEV);
4165         pci_unregister_driver(&qla2xxx_pci_driver);
4166         qla2x00_release_firmware();
4167         kmem_cache_destroy(srb_cachep);
4168         if (ctx_cachep)
4169                 kmem_cache_destroy(ctx_cachep);
4170         fc_release_transport(qla2xxx_transport_template);
4171         fc_release_transport(qla2xxx_transport_vport_template);
4172 }
4173
4174 module_init(qla2x00_module_init);
4175 module_exit(qla2x00_module_exit);
4176
4177 MODULE_AUTHOR("QLogic Corporation");
4178 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
4179 MODULE_LICENSE("GPL");
4180 MODULE_VERSION(QLA2XXX_VERSION);
4181 MODULE_FIRMWARE(FW_FILE_ISP21XX);
4182 MODULE_FIRMWARE(FW_FILE_ISP22XX);
4183 MODULE_FIRMWARE(FW_FILE_ISP2300);
4184 MODULE_FIRMWARE(FW_FILE_ISP2322);
4185 MODULE_FIRMWARE(FW_FILE_ISP24XX);
4186 MODULE_FIRMWARE(FW_FILE_ISP25XX);