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|S_IRUSR);
  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|S_IRUSR);
  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|S_IRUSR);
  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|S_IRUSR);
  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|S_IRUSR);
  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|S_IRUSR);
  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|S_IRUSR);
 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|S_IRUSR);
 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|S_IRUSR);
 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|S_IRUSR);
 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|S_IRUSR);
 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|S_IRUSR);
 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 ql2xdontresethba;
 151 module_param(ql2xdontresethba, int, S_IRUGO|S_IRUSR);
 152 MODULE_PARM_DESC(ql2xdontresethba,
 153         "Option to specify reset behaviour\n"
 154         " 0 (Default) -- Reset on failure.\n"
 155         " 1 -- Do not reset on failure.\n");
 156
 157 int ql2xtargetreset = 1;
 158 module_param(ql2xtargetreset, int, S_IRUGO|S_IRUSR);
 159 MODULE_PARM_DESC(ql2xtargetreset,
 160                  "Enable target reset."
 161                  "Default is 1 - use hw defaults.");
 162
 163 int ql2xgffidenable;
 164 module_param(ql2xgffidenable, int, S_IRUGO|S_IRUSR);
 165 MODULE_PARM_DESC(ql2xgffidenable,
 166                 "Enables GFF_ID checks of port type. "
 167                 "Default is 0 - Do not use GFF_ID information.");
 168
 169 int ql2xasynctmfenable;
 170 module_param(ql2xasynctmfenable, int, S_IRUGO|S_IRUSR);
 171 MODULE_PARM_DESC(ql2xasynctmfenable,
 172                 "Enables issue of TM IOCBs asynchronously via IOCB mechanism"
 173                 "Default is 0 - Issue TM IOCBs via mailbox mechanism.");
 174 /*
 175  * SCSI host template entry points
 176  */
 177 static int qla2xxx_slave_configure(struct scsi_device * device);
 178 static int qla2xxx_slave_alloc(struct scsi_device *);
 179 static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
 180 static void qla2xxx_scan_start(struct Scsi_Host *);
 181 static void qla2xxx_slave_destroy(struct scsi_device *);
 182 static int qla2xxx_queuecommand(struct scsi_cmnd *cmd,
 183                 void (*fn)(struct scsi_cmnd *));
 184 static int qla2xxx_eh_abort(struct scsi_cmnd *);
 185 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
 186 static int qla2xxx_eh_target_reset(struct scsi_cmnd *);
 187 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
 188 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
 189
 190 static int qla2x00_change_queue_depth(struct scsi_device *, int, int);
 191 static int qla2x00_change_queue_type(struct scsi_device *, int);
 192
 193 struct scsi_host_template qla2xxx_driver_template = {
 194         .module                 = THIS_MODULE,
 195         .name                   = QLA2XXX_DRIVER_NAME,
 196         .queuecommand           = qla2xxx_queuecommand,
 197
 198         .eh_abort_handler       = qla2xxx_eh_abort,
 199         .eh_device_reset_handler = qla2xxx_eh_device_reset,
 200         .eh_target_reset_handler = qla2xxx_eh_target_reset,
 201         .eh_bus_reset_handler   = qla2xxx_eh_bus_reset,
 202         .eh_host_reset_handler  = qla2xxx_eh_host_reset,
 203
 204         .slave_configure        = qla2xxx_slave_configure,
 205
 206         .slave_alloc            = qla2xxx_slave_alloc,
 207         .slave_destroy          = qla2xxx_slave_destroy,
 208         .scan_finished          = qla2xxx_scan_finished,
 209         .scan_start             = qla2xxx_scan_start,
 210         .change_queue_depth     = qla2x00_change_queue_depth,
 211         .change_queue_type      = qla2x00_change_queue_type,
 212         .this_id                = -1,
 213         .cmd_per_lun            = 3,
 214         .use_clustering         = ENABLE_CLUSTERING,
 215         .sg_tablesize           = SG_ALL,
 216
 217         .max_sectors            = 0xFFFF,
 218         .shost_attrs            = qla2x00_host_attrs,
 219 };
 220
 221 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
 222 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
 223
 224 /* TODO Convert to inlines
 225  *
 226  * Timer routines
 227  */
 228
 229 __inline__ void
 230 qla2x00_start_timer(scsi_qla_host_t *vha, void *func, unsigned long interval)
 231 {
 232         init_timer(&vha->timer);
 233         vha->timer.expires = jiffies + interval * HZ;
 234         vha->timer.data = (unsigned long)vha;
 235         vha->timer.function = (void (*)(unsigned long))func;
 236         add_timer(&vha->timer);
 237         vha->timer_active = 1;
 238 }
 239
 240 static inline void
 241 qla2x00_restart_timer(scsi_qla_host_t *vha, unsigned long interval)
 242 {
 243         /* Currently used for 82XX only. */
 244         if (vha->device_flags & DFLG_DEV_FAILED)
 245                 return;
 246
 247         mod_timer(&vha->timer, jiffies + interval * HZ);
 248 }
 249
 250 static __inline__ void
 251 qla2x00_stop_timer(scsi_qla_host_t *vha)
 252 {
 253         del_timer_sync(&vha->timer);
 254         vha->timer_active = 0;
 255 }
 256
 257 static int qla2x00_do_dpc(void *data);
 258
 259 static void qla2x00_rst_aen(scsi_qla_host_t *);
 260
 261 static int qla2x00_mem_alloc(struct qla_hw_data *, uint16_t, uint16_t,
 262         struct req_que **, struct rsp_que **);
 263 static void qla2x00_mem_free(struct qla_hw_data *);
 264 static void qla2x00_sp_free_dma(srb_t *);
 265
 266 /* -------------------------------------------------------------------------- */
 267 static int qla2x00_alloc_queues(struct qla_hw_data *ha)
 268 {
 269         ha->req_q_map = kzalloc(sizeof(struct req_que *) * ha->max_req_queues,
 270                                 GFP_KERNEL);
 271         if (!ha->req_q_map) {
 272                 qla_printk(KERN_WARNING, ha,
 273                         "Unable to allocate memory for request queue ptrs\n");
 274                 goto fail_req_map;
 275         }
 276
 277         ha->rsp_q_map = kzalloc(sizeof(struct rsp_que *) * ha->max_rsp_queues,
 278                                 GFP_KERNEL);
 279         if (!ha->rsp_q_map) {
 280                 qla_printk(KERN_WARNING, ha,
 281                         "Unable to allocate memory for response queue ptrs\n");
 282                 goto fail_rsp_map;
 283         }
 284         set_bit(0, ha->rsp_qid_map);
 285         set_bit(0, ha->req_qid_map);
 286         return 1;
 287
 288 fail_rsp_map:
 289         kfree(ha->req_q_map);
 290         ha->req_q_map = NULL;
 291 fail_req_map:
 292         return -ENOMEM;
 293 }
 294
 295 static void qla2x00_free_req_que(struct qla_hw_data *ha, struct req_que *req)
 296 {
 297         if (req && req->ring)
 298                 dma_free_coherent(&ha->pdev->dev,
 299                 (req->length + 1) * sizeof(request_t),
 300                 req->ring, req->dma);
 301
 302         kfree(req);
 303         req = NULL;
 304 }
 305
 306 static void qla2x00_free_rsp_que(struct qla_hw_data *ha, struct rsp_que *rsp)
 307 {
 308         if (rsp && rsp->ring)
 309                 dma_free_coherent(&ha->pdev->dev,
 310                 (rsp->length + 1) * sizeof(response_t),
 311                 rsp->ring, rsp->dma);
 312
 313         kfree(rsp);
 314         rsp = NULL;
 315 }
 316
 317 static void qla2x00_free_queues(struct qla_hw_data *ha)
 318 {
 319         struct req_que *req;
 320         struct rsp_que *rsp;
 321         int cnt;
 322
 323         for (cnt = 0; cnt < ha->max_req_queues; cnt++) {
 324                 req = ha->req_q_map[cnt];
 325                 qla2x00_free_req_que(ha, req);
 326         }
 327         kfree(ha->req_q_map);
 328         ha->req_q_map = NULL;
 329
 330         for (cnt = 0; cnt < ha->max_rsp_queues; cnt++) {
 331                 rsp = ha->rsp_q_map[cnt];
 332                 qla2x00_free_rsp_que(ha, rsp);
 333         }
 334         kfree(ha->rsp_q_map);
 335         ha->rsp_q_map = NULL;
 336 }
 337
 338 static int qla25xx_setup_mode(struct scsi_qla_host *vha)
 339 {
 340         uint16_t options = 0;
 341         int ques, req, ret;
 342         struct qla_hw_data *ha = vha->hw;
 343
 344         if (!(ha->fw_attributes & BIT_6)) {
 345                 qla_printk(KERN_INFO, ha,
 346                         "Firmware is not multi-queue capable\n");
 347                 goto fail;
 348         }
 349         if (ql2xmultique_tag) {
 350                 /* create a request queue for IO */
 351                 options |= BIT_7;
 352                 req = qla25xx_create_req_que(ha, options, 0, 0, -1,
 353                         QLA_DEFAULT_QUE_QOS);
 354                 if (!req) {
 355                         qla_printk(KERN_WARNING, ha,
 356                                 "Can't create request queue\n");
 357                         goto fail;
 358                 }
 359                 ha->wq = create_workqueue("qla2xxx_wq");
 360                 vha->req = ha->req_q_map[req];
 361                 options |= BIT_1;
 362                 for (ques = 1; ques < ha->max_rsp_queues; ques++) {
 363                         ret = qla25xx_create_rsp_que(ha, options, 0, 0, req);
 364                         if (!ret) {
 365                                 qla_printk(KERN_WARNING, ha,
 366                                         "Response Queue create failed\n");
 367                                 goto fail2;
 368                         }
 369                 }
 370                 ha->flags.cpu_affinity_enabled = 1;
 371
 372                 DEBUG2(qla_printk(KERN_INFO, ha,
 373                         "CPU affinity mode enabled, no. of response"
 374                         " queues:%d, no. of request queues:%d\n",
 375                         ha->max_rsp_queues, ha->max_req_queues));
 376         }
 377         return 0;
 378 fail2:
 379         qla25xx_delete_queues(vha);
 380         destroy_workqueue(ha->wq);
 381         ha->wq = NULL;
 382 fail:
 383         ha->mqenable = 0;
 384         kfree(ha->req_q_map);
 385         kfree(ha->rsp_q_map);
 386         ha->max_req_queues = ha->max_rsp_queues = 1;
 387         return 1;
 388 }
 389
 390 static char *
 391 qla2x00_pci_info_str(struct scsi_qla_host *vha, char *str)
 392 {
 393         struct qla_hw_data *ha = vha->hw;
 394         static char *pci_bus_modes[] = {
 395                 "33", "66", "100", "133",
 396         };
 397         uint16_t pci_bus;
 398
 399         strcpy(str, "PCI");
 400         pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
 401         if (pci_bus) {
 402                 strcat(str, "-X (");
 403                 strcat(str, pci_bus_modes[pci_bus]);
 404         } else {
 405                 pci_bus = (ha->pci_attr & BIT_8) >> 8;
 406                 strcat(str, " (");
 407                 strcat(str, pci_bus_modes[pci_bus]);
 408         }
 409         strcat(str, " MHz)");
 410
 411         return (str);
 412 }
 413
 414 static char *
 415 qla24xx_pci_info_str(struct scsi_qla_host *vha, char *str)
 416 {
 417         static char *pci_bus_modes[] = { "33", "66", "100", "133", };
 418         struct qla_hw_data *ha = vha->hw;
 419         uint32_t pci_bus;
 420         int pcie_reg;
 421
 422         pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
 423         if (pcie_reg) {
 424                 char lwstr[6];
 425                 uint16_t pcie_lstat, lspeed, lwidth;
 426
 427                 pcie_reg += 0x12;
 428                 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
 429                 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
 430                 lwidth = (pcie_lstat &
 431                     (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
 432
 433                 strcpy(str, "PCIe (");
 434                 if (lspeed == 1)
 435                         strcat(str, "2.5GT/s ");
 436                 else if (lspeed == 2)
 437                         strcat(str, "5.0GT/s ");
 438                 else
 439                         strcat(str, "<unknown> ");
 440                 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
 441                 strcat(str, lwstr);
 442
 443                 return str;
 444         }
 445
 446         strcpy(str, "PCI");
 447         pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
 448         if (pci_bus == 0 || pci_bus == 8) {
 449                 strcat(str, " (");
 450                 strcat(str, pci_bus_modes[pci_bus >> 3]);
 451         } else {
 452                 strcat(str, "-X ");
 453                 if (pci_bus & BIT_2)
 454                         strcat(str, "Mode 2");
 455                 else
 456                         strcat(str, "Mode 1");
 457                 strcat(str, " (");
 458                 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
 459         }
 460         strcat(str, " MHz)");
 461
 462         return str;
 463 }
 464
 465 static char *
 466 qla2x00_fw_version_str(struct scsi_qla_host *vha, char *str)
 467 {
 468         char un_str[10];
 469         struct qla_hw_data *ha = vha->hw;
 470
 471         sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
 472             ha->fw_minor_version,
 473             ha->fw_subminor_version);
 474
 475         if (ha->fw_attributes & BIT_9) {
 476                 strcat(str, "FLX");
 477                 return (str);
 478         }
 479
 480         switch (ha->fw_attributes & 0xFF) {
 481         case 0x7:
 482                 strcat(str, "EF");
 483                 break;
 484         case 0x17:
 485                 strcat(str, "TP");
 486                 break;
 487         case 0x37:
 488                 strcat(str, "IP");
 489                 break;
 490         case 0x77:
 491                 strcat(str, "VI");
 492                 break;
 493         default:
 494                 sprintf(un_str, "(%x)", ha->fw_attributes);
 495                 strcat(str, un_str);
 496                 break;
 497         }
 498         if (ha->fw_attributes & 0x100)
 499                 strcat(str, "X");
 500
 501         return (str);
 502 }
 503
 504 static char *
 505 qla24xx_fw_version_str(struct scsi_qla_host *vha, char *str)
 506 {
 507         struct qla_hw_data *ha = vha->hw;
 508
 509         sprintf(str, "%d.%02d.%02d (%x)", ha->fw_major_version,
 510             ha->fw_minor_version, ha->fw_subminor_version, ha->fw_attributes);
 511         return str;
 512 }
 513
 514 static inline srb_t *
 515 qla2x00_get_new_sp(scsi_qla_host_t *vha, fc_port_t *fcport,
 516     struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 517 {
 518         srb_t *sp;
 519         struct qla_hw_data *ha = vha->hw;
 520
 521         sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
 522         if (!sp)
 523                 return sp;
 524
 525         atomic_set(&sp->ref_count, 1);
 526         sp->fcport = fcport;
 527         sp->cmd = cmd;
 528         sp->flags = 0;
 529         CMD_SP(cmd) = (void *)sp;
 530         cmd->scsi_done = done;
 531         sp->ctx = NULL;
 532
 533         return sp;
 534 }
 535
 536 static int
 537 qla2xxx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 538 {
 539         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 540         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 541         struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
 542         struct qla_hw_data *ha = vha->hw;
 543         struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
 544         srb_t *sp;
 545         int rval;
 546
 547         if (ha->flags.eeh_busy) {
 548                 if (ha->flags.pci_channel_io_perm_failure)
 549                         cmd->result = DID_NO_CONNECT << 16;
 550                 else
 551                         cmd->result = DID_REQUEUE << 16;
 552                 goto qc24_fail_command;
 553         }
 554
 555         rval = fc_remote_port_chkready(rport);
 556         if (rval) {
 557                 cmd->result = rval;
 558                 goto qc24_fail_command;
 559         }
 560
 561         /* Close window on fcport/rport state-transitioning. */
 562         if (fcport->drport)
 563                 goto qc24_target_busy;
 564
 565         if (!vha->flags.difdix_supported &&
 566                 scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) {
 567                         DEBUG2(qla_printk(KERN_ERR, ha,
 568                             "DIF Cap Not Reg, fail DIF capable cmd's:%x\n",
 569                             cmd->cmnd[0]));
 570                         cmd->result = DID_NO_CONNECT << 16;
 571                         goto qc24_fail_command;
 572         }
 573         if (atomic_read(&fcport->state) != FCS_ONLINE) {
 574                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
 575                     atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
 576                         cmd->result = DID_NO_CONNECT << 16;
 577                         goto qc24_fail_command;
 578                 }
 579                 goto qc24_target_busy;
 580         }
 581
 582         spin_unlock_irq(vha->host->host_lock);
 583
 584         sp = qla2x00_get_new_sp(base_vha, fcport, cmd, done);
 585         if (!sp)
 586                 goto qc24_host_busy_lock;
 587
 588         rval = ha->isp_ops->start_scsi(sp);
 589         if (rval != QLA_SUCCESS)
 590                 goto qc24_host_busy_free_sp;
 591
 592         spin_lock_irq(vha->host->host_lock);
 593
 594         return 0;
 595
 596 qc24_host_busy_free_sp:
 597         qla2x00_sp_free_dma(sp);
 598         mempool_free(sp, ha->srb_mempool);
 599
 600 qc24_host_busy_lock:
 601         spin_lock_irq(vha->host->host_lock);
 602         return SCSI_MLQUEUE_HOST_BUSY;
 603
 604 qc24_target_busy:
 605         return SCSI_MLQUEUE_TARGET_BUSY;
 606
 607 qc24_fail_command:
 608         done(cmd);
 609
 610         return 0;
 611 }
 612
 613
 614 /*
 615  * qla2x00_eh_wait_on_command
 616  *    Waits for the command to be returned by the Firmware for some
 617  *    max time.
 618  *
 619  * Input:
 620  *    cmd = Scsi Command to wait on.
 621  *
 622  * Return:
 623  *    Not Found : 0
 624  *    Found : 1
 625  */
 626 static int
 627 qla2x00_eh_wait_on_command(struct scsi_cmnd *cmd)
 628 {
 629 #define ABORT_POLLING_PERIOD    1000
 630 #define ABORT_WAIT_ITER         ((10 * 1000) / (ABORT_POLLING_PERIOD))
 631         unsigned long wait_iter = ABORT_WAIT_ITER;
 632         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 633         struct qla_hw_data *ha = vha->hw;
 634         int ret = QLA_SUCCESS;
 635
 636         if (unlikely(pci_channel_offline(ha->pdev)) || ha->flags.eeh_busy) {
 637                 DEBUG17(qla_printk(KERN_WARNING, ha, "return:eh_wait\n"));
 638                 return ret;
 639         }
 640
 641         while (CMD_SP(cmd) && wait_iter--) {
 642                 msleep(ABORT_POLLING_PERIOD);
 643         }
 644         if (CMD_SP(cmd))
 645                 ret = QLA_FUNCTION_FAILED;
 646
 647         return ret;
 648 }
 649
 650 /*
 651  * qla2x00_wait_for_hba_online
 652  *    Wait till the HBA is online after going through
 653  *    <= MAX_RETRIES_OF_ISP_ABORT  or
 654  *    finally HBA is disabled ie marked offline
 655  *
 656  * Input:
 657  *     ha - pointer to host adapter structure
 658  *
 659  * Note:
 660  *    Does context switching-Release SPIN_LOCK
 661  *    (if any) before calling this routine.
 662  *
 663  * Return:
 664  *    Success (Adapter is online) : 0
 665  *    Failed  (Adapter is offline/disabled) : 1
 666  */
 667 int
 668 qla2x00_wait_for_hba_online(scsi_qla_host_t *vha)
 669 {
 670         int             return_status;
 671         unsigned long   wait_online;
 672         struct qla_hw_data *ha = vha->hw;
 673         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 674
 675         wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 676         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 677             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 678             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 679             ha->dpc_active) && time_before(jiffies, wait_online)) {
 680
 681                 msleep(1000);
 682         }
 683         if (base_vha->flags.online)
 684                 return_status = QLA_SUCCESS;
 685         else
 686                 return_status = QLA_FUNCTION_FAILED;
 687
 688         return (return_status);
 689 }
 690
 691 /*
 692  * qla2x00_wait_for_reset_ready
 693  *    Wait till the HBA is online after going through
 694  *    <= MAX_RETRIES_OF_ISP_ABORT  or
 695  *    finally HBA is disabled ie marked offline or flash
 696  *    operations are in progress.
 697  *
 698  * Input:
 699  *     ha - pointer to host adapter structure
 700  *
 701  * Note:
 702  *    Does context switching-Release SPIN_LOCK
 703  *    (if any) before calling this routine.
 704  *
 705  * Return:
 706  *    Success (Adapter is online/no flash ops) : 0
 707  *    Failed  (Adapter is offline/disabled/flash ops in progress) : 1
 708  */
 709 static int
 710 qla2x00_wait_for_reset_ready(scsi_qla_host_t *vha)
 711 {
 712         int             return_status;
 713         unsigned long   wait_online;
 714         struct qla_hw_data *ha = vha->hw;
 715         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 716
 717         wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 718         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 719             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 720             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 721             ha->optrom_state != QLA_SWAITING ||
 722             ha->dpc_active) && time_before(jiffies, wait_online))
 723                 msleep(1000);
 724
 725         if (base_vha->flags.online &&  ha->optrom_state == QLA_SWAITING)
 726                 return_status = QLA_SUCCESS;
 727         else
 728                 return_status = QLA_FUNCTION_FAILED;
 729
 730         DEBUG2(printk("%s return_status=%d\n", __func__, return_status));
 731
 732         return return_status;
 733 }
 734
 735 int
 736 qla2x00_wait_for_chip_reset(scsi_qla_host_t *vha)
 737 {
 738         int             return_status;
 739         unsigned long   wait_reset;
 740         struct qla_hw_data *ha = vha->hw;
 741         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 742
 743         wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 744         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 745             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 746             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 747             ha->dpc_active) && time_before(jiffies, wait_reset)) {
 748
 749                 msleep(1000);
 750
 751                 if (!test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags) &&
 752                     ha->flags.chip_reset_done)
 753                         break;
 754         }
 755         if (ha->flags.chip_reset_done)
 756                 return_status = QLA_SUCCESS;
 757         else
 758                 return_status = QLA_FUNCTION_FAILED;
 759
 760         return return_status;
 761 }
 762
 763 /*
 764  * qla2x00_wait_for_loop_ready
 765  *    Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
 766  *    to be in LOOP_READY state.
 767  * Input:
 768  *     ha - pointer to host adapter structure
 769  *
 770  * Note:
 771  *    Does context switching-Release SPIN_LOCK
 772  *    (if any) before calling this routine.
 773  *
 774  *
 775  * Return:
 776  *    Success (LOOP_READY) : 0
 777  *    Failed  (LOOP_NOT_READY) : 1
 778  */
 779 static inline int
 780 qla2x00_wait_for_loop_ready(scsi_qla_host_t *vha)
 781 {
 782         int      return_status = QLA_SUCCESS;
 783         unsigned long loop_timeout ;
 784         struct qla_hw_data *ha = vha->hw;
 785         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 786
 787         /* wait for 5 min at the max for loop to be ready */
 788         loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 789
 790         while ((!atomic_read(&base_vha->loop_down_timer) &&
 791             atomic_read(&base_vha->loop_state) == LOOP_DOWN) ||
 792             atomic_read(&base_vha->loop_state) != LOOP_READY) {
 793                 if (atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
 794                         return_status = QLA_FUNCTION_FAILED;
 795                         break;
 796                 }
 797                 msleep(1000);
 798                 if (time_after_eq(jiffies, loop_timeout)) {
 799                         return_status = QLA_FUNCTION_FAILED;
 800                         break;
 801                 }
 802         }
 803         return (return_status);
 804 }
 805
 806 static void
 807 sp_get(struct srb *sp)
 808 {
 809         atomic_inc(&sp->ref_count);
 810 }
 811
 812 /**************************************************************************
 813 * qla2xxx_eh_abort
 814 *
 815 * Description:
 816 *    The abort function will abort the specified command.
 817 *
 818 * Input:
 819 *    cmd = Linux SCSI command packet to be aborted.
 820 *
 821 * Returns:
 822 *    Either SUCCESS or FAILED.
 823 *
 824 * Note:
 825 *    Only return FAILED if command not returned by firmware.
 826 **************************************************************************/
 827 static int
 828 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
 829 {
 830         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 831         srb_t *sp;
 832         int ret, i;
 833         unsigned int id, lun;
 834         unsigned long flags;
 835         int wait = 0;
 836         struct qla_hw_data *ha = vha->hw;
 837         struct req_que *req = vha->req;
 838         srb_t *spt;
 839         int got_ref = 0;
 840
 841         fc_block_scsi_eh(cmd);
 842
 843         if (!CMD_SP(cmd))
 844                 return SUCCESS;
 845
 846         ret = SUCCESS;
 847
 848         id = cmd->device->id;
 849         lun = cmd->device->lun;
 850         spt = (srb_t *) CMD_SP(cmd);
 851         if (!spt)
 852                 return SUCCESS;
 853
 854         /* Check active list for command command. */
 855         spin_lock_irqsave(&ha->hardware_lock, flags);
 856         for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
 857                 sp = req->outstanding_cmds[i];
 858
 859                 if (sp == NULL)
 860                         continue;
 861                 if ((sp->ctx) && !(sp->flags & SRB_FCP_CMND_DMA_VALID) &&
 862                     !IS_PROT_IO(sp))
 863                         continue;
 864                 if (sp->cmd != cmd)
 865                         continue;
 866
 867                 DEBUG2(printk("%s(%ld): aborting sp %p from RISC.",
 868                     __func__, vha->host_no, sp));
 869
 870                 /* Get a reference to the sp and drop the lock.*/
 871                 sp_get(sp);
 872                 got_ref++;
 873
 874                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 875                 if (ha->isp_ops->abort_command(sp)) {
 876                         DEBUG2(printk("%s(%ld): abort_command "
 877                         "mbx failed.\n", __func__, vha->host_no));
 878                         ret = FAILED;
 879                 } else {
 880                         DEBUG3(printk("%s(%ld): abort_command "
 881                         "mbx success.\n", __func__, vha->host_no));
 882                         wait = 1;
 883                 }
 884                 spin_lock_irqsave(&ha->hardware_lock, flags);
 885                 break;
 886         }
 887         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 888
 889         /* Wait for the command to be returned. */
 890         if (wait) {
 891                 if (qla2x00_eh_wait_on_command(cmd) != QLA_SUCCESS) {
 892                         qla_printk(KERN_ERR, ha,
 893                             "scsi(%ld:%d:%d): Abort handler timed out -- %x.\n",
 894                             vha->host_no, id, lun, ret);
 895                         ret = FAILED;
 896                 }
 897         }
 898
 899         if (got_ref)
 900                 qla2x00_sp_compl(ha, sp);
 901
 902         qla_printk(KERN_INFO, ha,
 903             "scsi(%ld:%d:%d): Abort command issued -- %d %x.\n",
 904             vha->host_no, id, lun, wait, ret);
 905
 906         return ret;
 907 }
 908
 909 int
 910 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *vha, unsigned int t,
 911         unsigned int l, enum nexus_wait_type type)
 912 {
 913         int cnt, match, status;
 914         unsigned long flags;
 915         struct qla_hw_data *ha = vha->hw;
 916         struct req_que *req;
 917         srb_t *sp;
 918
 919         status = QLA_SUCCESS;
 920
 921         spin_lock_irqsave(&ha->hardware_lock, flags);
 922         req = vha->req;
 923         for (cnt = 1; status == QLA_SUCCESS &&
 924                 cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
 925                 sp = req->outstanding_cmds[cnt];
 926                 if (!sp)
 927                         continue;
 928                 if ((sp->ctx) && !IS_PROT_IO(sp))
 929                         continue;
 930                 if (vha->vp_idx != sp->fcport->vha->vp_idx)
 931                         continue;
 932                 match = 0;
 933                 switch (type) {
 934                 case WAIT_HOST:
 935                         match = 1;
 936                         break;
 937                 case WAIT_TARGET:
 938                         match = sp->cmd->device->id == t;
 939                         break;
 940                 case WAIT_LUN:
 941                         match = (sp->cmd->device->id == t &&
 942                                 sp->cmd->device->lun == l);
 943                         break;
 944                 }
 945                 if (!match)
 946                         continue;
 947
 948                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 949                 status = qla2x00_eh_wait_on_command(sp->cmd);
 950                 spin_lock_irqsave(&ha->hardware_lock, flags);
 951         }
 952         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 953
 954         return status;
 955 }
 956
 957 static char *reset_errors[] = {
 958         "HBA not online",
 959         "HBA not ready",
 960         "Task management failed",
 961         "Waiting for command completions",
 962 };
 963
 964 static int
 965 __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
 966     struct scsi_cmnd *cmd, int (*do_reset)(struct fc_port *, unsigned int, int))
 967 {
 968         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 969         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 970         int err;
 971
 972         fc_block_scsi_eh(cmd);
 973
 974         if (!fcport)
 975                 return FAILED;
 976
 977         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET ISSUED.\n",
 978             vha->host_no, cmd->device->id, cmd->device->lun, name);
 979
 980         err = 0;
 981         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
 982                 goto eh_reset_failed;
 983         err = 1;
 984         if (qla2x00_wait_for_loop_ready(vha) != QLA_SUCCESS)
 985                 goto eh_reset_failed;
 986         err = 2;
 987         if (do_reset(fcport, cmd->device->lun, cmd->request->cpu + 1)
 988                 != QLA_SUCCESS)
 989                 goto eh_reset_failed;
 990         err = 3;
 991         if (qla2x00_eh_wait_for_pending_commands(vha, cmd->device->id,
 992             cmd->device->lun, type) != QLA_SUCCESS)
 993                 goto eh_reset_failed;
 994
 995         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET SUCCEEDED.\n",
 996             vha->host_no, cmd->device->id, cmd->device->lun, name);
 997
 998         return SUCCESS;
 999
1000 eh_reset_failed:
1001         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET FAILED: %s.\n"
1002             , vha->host_no, cmd->device->id, cmd->device->lun, name,
1003             reset_errors[err]);
1004         return FAILED;
1005 }
1006
1007 static int
1008 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
1009 {
1010         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1011         struct qla_hw_data *ha = vha->hw;
1012
1013         return __qla2xxx_eh_generic_reset("DEVICE", WAIT_LUN, cmd,
1014             ha->isp_ops->lun_reset);
1015 }
1016
1017 static int
1018 qla2xxx_eh_target_reset(struct scsi_cmnd *cmd)
1019 {
1020         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1021         struct qla_hw_data *ha = vha->hw;
1022
1023         return __qla2xxx_eh_generic_reset("TARGET", WAIT_TARGET, cmd,
1024             ha->isp_ops->target_reset);
1025 }
1026
1027 /**************************************************************************
1028 * qla2xxx_eh_bus_reset
1029 *
1030 * Description:
1031 *    The bus reset function will reset the bus and abort any executing
1032 *    commands.
1033 *
1034 * Input:
1035 *    cmd = Linux SCSI command packet of the command that cause the
1036 *          bus reset.
1037 *
1038 * Returns:
1039 *    SUCCESS/FAILURE (defined as macro in scsi.h).
1040 *
1041 **************************************************************************/
1042 static int
1043 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
1044 {
1045         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1046         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1047         int ret = FAILED;
1048         unsigned int id, lun;
1049
1050         fc_block_scsi_eh(cmd);
1051
1052         id = cmd->device->id;
1053         lun = cmd->device->lun;
1054
1055         if (!fcport)
1056                 return ret;
1057
1058         qla_printk(KERN_INFO, vha->hw,
1059             "scsi(%ld:%d:%d): BUS RESET ISSUED.\n", vha->host_no, id, lun);
1060
1061         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1062                 DEBUG2(printk("%s failed:board disabled\n",__func__));
1063                 goto eh_bus_reset_done;
1064         }
1065
1066         if (qla2x00_wait_for_loop_ready(vha) == QLA_SUCCESS) {
1067                 if (qla2x00_loop_reset(vha) == QLA_SUCCESS)
1068                         ret = SUCCESS;
1069         }
1070         if (ret == FAILED)
1071                 goto eh_bus_reset_done;
1072
1073         /* Flush outstanding commands. */
1074         if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST) !=
1075             QLA_SUCCESS)
1076                 ret = FAILED;
1077
1078 eh_bus_reset_done:
1079         qla_printk(KERN_INFO, vha->hw, "%s: reset %s\n", __func__,
1080             (ret == FAILED) ? "failed" : "succeded");
1081
1082         return ret;
1083 }
1084
1085 /**************************************************************************
1086 * qla2xxx_eh_host_reset
1087 *
1088 * Description:
1089 *    The reset function will reset the Adapter.
1090 *
1091 * Input:
1092 *      cmd = Linux SCSI command packet of the command that cause the
1093 *            adapter reset.
1094 *
1095 * Returns:
1096 *      Either SUCCESS or FAILED.
1097 *
1098 * Note:
1099 **************************************************************************/
1100 static int
1101 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
1102 {
1103         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1104         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1105         struct qla_hw_data *ha = vha->hw;
1106         int ret = FAILED;
1107         unsigned int id, lun;
1108         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1109
1110         fc_block_scsi_eh(cmd);
1111
1112         id = cmd->device->id;
1113         lun = cmd->device->lun;
1114
1115         if (!fcport)
1116                 return ret;
1117
1118         qla_printk(KERN_INFO, ha,
1119             "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", vha->host_no, id, lun);
1120
1121         if (qla2x00_wait_for_reset_ready(vha) != QLA_SUCCESS)
1122                 goto eh_host_reset_lock;
1123
1124         /*
1125          * Fixme-may be dpc thread is active and processing
1126          * loop_resync,so wait a while for it to
1127          * be completed and then issue big hammer.Otherwise
1128          * it may cause I/O failure as big hammer marks the
1129          * devices as lost kicking of the port_down_timer
1130          * while dpc is stuck for the mailbox to complete.
1131          */
1132         qla2x00_wait_for_loop_ready(vha);
1133         if (vha != base_vha) {
1134                 if (qla2x00_vp_abort_isp(vha))
1135                         goto eh_host_reset_lock;
1136         } else {
1137                 if (IS_QLA82XX(vha->hw)) {
1138                         if (!qla82xx_fcoe_ctx_reset(vha)) {
1139                                 /* Ctx reset success */
1140                                 ret = SUCCESS;
1141                                 goto eh_host_reset_lock;
1142                         }
1143                         /* fall thru if ctx reset failed */
1144                 }
1145                 if (ha->wq)
1146                         flush_workqueue(ha->wq);
1147
1148                 set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1149                 if (ha->isp_ops->abort_isp(base_vha)) {
1150                         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1151                         /* failed. schedule dpc to try */
1152                         set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags);
1153
1154                         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
1155                                 goto eh_host_reset_lock;
1156                 }
1157                 clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1158         }
1159
1160         /* Waiting for command to be returned to OS.*/
1161         if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST) ==
1162                 QLA_SUCCESS)
1163                 ret = SUCCESS;
1164
1165 eh_host_reset_lock:
1166         qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
1167             (ret == FAILED) ? "failed" : "succeded");
1168
1169         return ret;
1170 }
1171
1172 /*
1173 * qla2x00_loop_reset
1174 *      Issue loop reset.
1175 *
1176 * Input:
1177 *      ha = adapter block pointer.
1178 *
1179 * Returns:
1180 *      0 = success
1181 */
1182 int
1183 qla2x00_loop_reset(scsi_qla_host_t *vha)
1184 {
1185         int ret;
1186         struct fc_port *fcport;
1187         struct qla_hw_data *ha = vha->hw;
1188
1189         if (ql2xtargetreset == 1 && ha->flags.enable_target_reset) {
1190                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
1191                         if (fcport->port_type != FCT_TARGET)
1192                                 continue;
1193
1194                         ret = ha->isp_ops->target_reset(fcport, 0, 0);
1195                         if (ret != QLA_SUCCESS) {
1196                                 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1197                                     "target_reset=%d d_id=%x.\n", __func__,
1198                                     vha->host_no, ret, fcport->d_id.b24));
1199                         }
1200                 }
1201         }
1202
1203         if (ha->flags.enable_lip_full_login && !IS_QLA8XXX_TYPE(ha)) {
1204                 ret = qla2x00_full_login_lip(vha);
1205                 if (ret != QLA_SUCCESS) {
1206                         DEBUG2_3(printk("%s(%ld): failed: "
1207                             "full_login_lip=%d.\n", __func__, vha->host_no,
1208                             ret));
1209                 }
1210                 atomic_set(&vha->loop_state, LOOP_DOWN);
1211                 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1212                 qla2x00_mark_all_devices_lost(vha, 0);
1213                 qla2x00_wait_for_loop_ready(vha);
1214         }
1215
1216         if (ha->flags.enable_lip_reset) {
1217                 ret = qla2x00_lip_reset(vha);
1218                 if (ret != QLA_SUCCESS) {
1219                         DEBUG2_3(printk("%s(%ld): failed: "
1220                             "lip_reset=%d.\n", __func__, vha->host_no, ret));
1221                 } else
1222                         qla2x00_wait_for_loop_ready(vha);
1223         }
1224
1225         /* Issue marker command only when we are going to start the I/O */
1226         vha->marker_needed = 1;
1227
1228         return QLA_SUCCESS;
1229 }
1230
1231 void
1232 qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res)
1233 {
1234         int que, cnt;
1235         unsigned long flags;
1236         srb_t *sp;
1237         struct srb_ctx *ctx;
1238         struct qla_hw_data *ha = vha->hw;
1239         struct req_que *req;
1240
1241         spin_lock_irqsave(&ha->hardware_lock, flags);
1242         for (que = 0; que < ha->max_req_queues; que++) {
1243                 req = ha->req_q_map[que];
1244                 if (!req)
1245                         continue;
1246                 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
1247                         sp = req->outstanding_cmds[cnt];
1248                         if (sp) {
1249                                 req->outstanding_cmds[cnt] = NULL;
1250                                 if (!sp->ctx ||
1251                                         (sp->flags & SRB_FCP_CMND_DMA_VALID) ||
1252                                         IS_PROT_IO(sp)) {
1253                                         sp->cmd->result = res;
1254                                         qla2x00_sp_compl(ha, sp);
1255                                 } else {
1256                                         ctx = sp->ctx;
1257                                         if (ctx->type == SRB_LOGIN_CMD ||
1258                                             ctx->type == SRB_LOGOUT_CMD) {
1259                                                 ctx->u.iocb_cmd->free(sp);
1260                                         } else {
1261                                                 struct fc_bsg_job *bsg_job =
1262                                                     ctx->u.bsg_job;
1263                                                 if (bsg_job->request->msgcode
1264                                                     == FC_BSG_HST_CT)
1265                                                         kfree(sp->fcport);
1266                                                 bsg_job->req->errors = 0;
1267                                                 bsg_job->reply->result = res;
1268                                                 bsg_job->job_done(bsg_job);
1269                                                 kfree(sp->ctx);
1270                                                 mempool_free(sp,
1271                                                         ha->srb_mempool);
1272                                         }
1273                                 }
1274                         }
1275                 }
1276         }
1277         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1278 }
1279
1280 static int
1281 qla2xxx_slave_alloc(struct scsi_device *sdev)
1282 {
1283         struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1284
1285         if (!rport || fc_remote_port_chkready(rport))
1286                 return -ENXIO;
1287
1288         sdev->hostdata = *(fc_port_t **)rport->dd_data;
1289
1290         return 0;
1291 }
1292
1293 static int
1294 qla2xxx_slave_configure(struct scsi_device *sdev)
1295 {
1296         scsi_qla_host_t *vha = shost_priv(sdev->host);
1297         struct req_que *req = vha->req;
1298
1299         if (sdev->tagged_supported)
1300                 scsi_activate_tcq(sdev, req->max_q_depth);
1301         else
1302                 scsi_deactivate_tcq(sdev, req->max_q_depth);
1303         return 0;
1304 }
1305
1306 static void
1307 qla2xxx_slave_destroy(struct scsi_device *sdev)
1308 {
1309         sdev->hostdata = NULL;
1310 }
1311
1312 static void qla2x00_handle_queue_full(struct scsi_device *sdev, int qdepth)
1313 {
1314         fc_port_t *fcport = (struct fc_port *) sdev->hostdata;
1315
1316         if (!scsi_track_queue_full(sdev, qdepth))
1317                 return;
1318
1319         DEBUG2(qla_printk(KERN_INFO, fcport->vha->hw,
1320                 "scsi(%ld:%d:%d:%d): Queue depth adjusted-down to %d.\n",
1321                 fcport->vha->host_no, sdev->channel, sdev->id, sdev->lun,
1322                 sdev->queue_depth));
1323 }
1324
1325 static void qla2x00_adjust_sdev_qdepth_up(struct scsi_device *sdev, int qdepth)
1326 {
1327         fc_port_t *fcport = sdev->hostdata;
1328         struct scsi_qla_host *vha = fcport->vha;
1329         struct qla_hw_data *ha = vha->hw;
1330         struct req_que *req = NULL;
1331
1332         req = vha->req;
1333         if (!req)
1334                 return;
1335
1336         if (req->max_q_depth <= sdev->queue_depth || req->max_q_depth < qdepth)
1337                 return;
1338
1339         if (sdev->ordered_tags)
1340                 scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, qdepth);
1341         else
1342                 scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, qdepth);
1343
1344         DEBUG2(qla_printk(KERN_INFO, ha,
1345                "scsi(%ld:%d:%d:%d): Queue depth adjusted-up to %d.\n",
1346                fcport->vha->host_no, sdev->channel, sdev->id, sdev->lun,
1347                sdev->queue_depth));
1348 }
1349
1350 static int
1351 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
1352 {
1353         switch (reason) {
1354         case SCSI_QDEPTH_DEFAULT:
1355                 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1356                 break;
1357         case SCSI_QDEPTH_QFULL:
1358                 qla2x00_handle_queue_full(sdev, qdepth);
1359                 break;
1360         case SCSI_QDEPTH_RAMP_UP:
1361                 qla2x00_adjust_sdev_qdepth_up(sdev, qdepth);
1362                 break;
1363         default:
1364                 return -EOPNOTSUPP;
1365         }
1366
1367         return sdev->queue_depth;
1368 }
1369
1370 static int
1371 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1372 {
1373         if (sdev->tagged_supported) {
1374                 scsi_set_tag_type(sdev, tag_type);
1375                 if (tag_type)
1376                         scsi_activate_tcq(sdev, sdev->queue_depth);
1377                 else
1378                         scsi_deactivate_tcq(sdev, sdev->queue_depth);
1379         } else
1380                 tag_type = 0;
1381
1382         return tag_type;
1383 }
1384
1385 /**
1386  * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1387  * @ha: HA context
1388  *
1389  * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1390  * supported addressing method.
1391  */
1392 static void
1393 qla2x00_config_dma_addressing(struct qla_hw_data *ha)
1394 {
1395         /* Assume a 32bit DMA mask. */
1396         ha->flags.enable_64bit_addressing = 0;
1397
1398         if (!dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(64))) {
1399                 /* Any upper-dword bits set? */
1400                 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1401                     !pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
1402                         /* Ok, a 64bit DMA mask is applicable. */
1403                         ha->flags.enable_64bit_addressing = 1;
1404                         ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1405                         ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1406                         return;
1407                 }
1408         }
1409
1410         dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(32));
1411         pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(32));
1412 }
1413
1414 static void
1415 qla2x00_enable_intrs(struct qla_hw_data *ha)
1416 {
1417         unsigned long flags = 0;
1418         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1419
1420         spin_lock_irqsave(&ha->hardware_lock, flags);
1421         ha->interrupts_on = 1;
1422         /* enable risc and host interrupts */
1423         WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1424         RD_REG_WORD(&reg->ictrl);
1425         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1426
1427 }
1428
1429 static void
1430 qla2x00_disable_intrs(struct qla_hw_data *ha)
1431 {
1432         unsigned long flags = 0;
1433         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1434
1435         spin_lock_irqsave(&ha->hardware_lock, flags);
1436         ha->interrupts_on = 0;
1437         /* disable risc and host interrupts */
1438         WRT_REG_WORD(&reg->ictrl, 0);
1439         RD_REG_WORD(&reg->ictrl);
1440         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1441 }
1442
1443 static void
1444 qla24xx_enable_intrs(struct qla_hw_data *ha)
1445 {
1446         unsigned long flags = 0;
1447         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1448
1449         spin_lock_irqsave(&ha->hardware_lock, flags);
1450         ha->interrupts_on = 1;
1451         WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1452         RD_REG_DWORD(&reg->ictrl);
1453         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1454 }
1455
1456 static void
1457 qla24xx_disable_intrs(struct qla_hw_data *ha)
1458 {
1459         unsigned long flags = 0;
1460         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1461
1462         if (IS_NOPOLLING_TYPE(ha))
1463                 return;
1464         spin_lock_irqsave(&ha->hardware_lock, flags);
1465         ha->interrupts_on = 0;
1466         WRT_REG_DWORD(&reg->ictrl, 0);
1467         RD_REG_DWORD(&reg->ictrl);
1468         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1469 }
1470
1471 static struct isp_operations qla2100_isp_ops = {
1472         .pci_config             = qla2100_pci_config,
1473         .reset_chip             = qla2x00_reset_chip,
1474         .chip_diag              = qla2x00_chip_diag,
1475         .config_rings           = qla2x00_config_rings,
1476         .reset_adapter          = qla2x00_reset_adapter,
1477         .nvram_config           = qla2x00_nvram_config,
1478         .update_fw_options      = qla2x00_update_fw_options,
1479         .load_risc              = qla2x00_load_risc,
1480         .pci_info_str           = qla2x00_pci_info_str,
1481         .fw_version_str         = qla2x00_fw_version_str,
1482         .intr_handler           = qla2100_intr_handler,
1483         .enable_intrs           = qla2x00_enable_intrs,
1484         .disable_intrs          = qla2x00_disable_intrs,
1485         .abort_command          = qla2x00_abort_command,
1486         .target_reset           = qla2x00_abort_target,
1487         .lun_reset              = qla2x00_lun_reset,
1488         .fabric_login           = qla2x00_login_fabric,
1489         .fabric_logout          = qla2x00_fabric_logout,
1490         .calc_req_entries       = qla2x00_calc_iocbs_32,
1491         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1492         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1493         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1494         .read_nvram             = qla2x00_read_nvram_data,
1495         .write_nvram            = qla2x00_write_nvram_data,
1496         .fw_dump                = qla2100_fw_dump,
1497         .beacon_on              = NULL,
1498         .beacon_off             = NULL,
1499         .beacon_blink           = NULL,
1500         .read_optrom            = qla2x00_read_optrom_data,
1501         .write_optrom           = qla2x00_write_optrom_data,
1502         .get_flash_version      = qla2x00_get_flash_version,
1503         .start_scsi             = qla2x00_start_scsi,
1504         .abort_isp              = qla2x00_abort_isp,
1505 };
1506
1507 static struct isp_operations qla2300_isp_ops = {
1508         .pci_config             = qla2300_pci_config,
1509         .reset_chip             = qla2x00_reset_chip,
1510         .chip_diag              = qla2x00_chip_diag,
1511         .config_rings           = qla2x00_config_rings,
1512         .reset_adapter          = qla2x00_reset_adapter,
1513         .nvram_config           = qla2x00_nvram_config,
1514         .update_fw_options      = qla2x00_update_fw_options,
1515         .load_risc              = qla2x00_load_risc,
1516         .pci_info_str           = qla2x00_pci_info_str,
1517         .fw_version_str         = qla2x00_fw_version_str,
1518         .intr_handler           = qla2300_intr_handler,
1519         .enable_intrs           = qla2x00_enable_intrs,
1520         .disable_intrs          = qla2x00_disable_intrs,
1521         .abort_command          = qla2x00_abort_command,
1522         .target_reset           = qla2x00_abort_target,
1523         .lun_reset              = qla2x00_lun_reset,
1524         .fabric_login           = qla2x00_login_fabric,
1525         .fabric_logout          = qla2x00_fabric_logout,
1526         .calc_req_entries       = qla2x00_calc_iocbs_32,
1527         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1528         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1529         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1530         .read_nvram             = qla2x00_read_nvram_data,
1531         .write_nvram            = qla2x00_write_nvram_data,
1532         .fw_dump                = qla2300_fw_dump,
1533         .beacon_on              = qla2x00_beacon_on,
1534         .beacon_off             = qla2x00_beacon_off,
1535         .beacon_blink           = qla2x00_beacon_blink,
1536         .read_optrom            = qla2x00_read_optrom_data,
1537         .write_optrom           = qla2x00_write_optrom_data,
1538         .get_flash_version      = qla2x00_get_flash_version,
1539         .start_scsi             = qla2x00_start_scsi,
1540         .abort_isp              = qla2x00_abort_isp,
1541 };
1542
1543 static struct isp_operations qla24xx_isp_ops = {
1544         .pci_config             = qla24xx_pci_config,
1545         .reset_chip             = qla24xx_reset_chip,
1546         .chip_diag              = qla24xx_chip_diag,
1547         .config_rings           = qla24xx_config_rings,
1548         .reset_adapter          = qla24xx_reset_adapter,
1549         .nvram_config           = qla24xx_nvram_config,
1550         .update_fw_options      = qla24xx_update_fw_options,
1551         .load_risc              = qla24xx_load_risc,
1552         .pci_info_str           = qla24xx_pci_info_str,
1553         .fw_version_str         = qla24xx_fw_version_str,
1554         .intr_handler           = qla24xx_intr_handler,
1555         .enable_intrs           = qla24xx_enable_intrs,
1556         .disable_intrs          = qla24xx_disable_intrs,
1557         .abort_command          = qla24xx_abort_command,
1558         .target_reset           = qla24xx_abort_target,
1559         .lun_reset              = qla24xx_lun_reset,
1560         .fabric_login           = qla24xx_login_fabric,
1561         .fabric_logout          = qla24xx_fabric_logout,
1562         .calc_req_entries       = NULL,
1563         .build_iocbs            = NULL,
1564         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1565         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1566         .read_nvram             = qla24xx_read_nvram_data,
1567         .write_nvram            = qla24xx_write_nvram_data,
1568         .fw_dump                = qla24xx_fw_dump,
1569         .beacon_on              = qla24xx_beacon_on,
1570         .beacon_off             = qla24xx_beacon_off,
1571         .beacon_blink           = qla24xx_beacon_blink,
1572         .read_optrom            = qla24xx_read_optrom_data,
1573         .write_optrom           = qla24xx_write_optrom_data,
1574         .get_flash_version      = qla24xx_get_flash_version,
1575         .start_scsi             = qla24xx_start_scsi,
1576         .abort_isp              = qla2x00_abort_isp,
1577 };
1578
1579 static struct isp_operations qla25xx_isp_ops = {
1580         .pci_config             = qla25xx_pci_config,
1581         .reset_chip             = qla24xx_reset_chip,
1582         .chip_diag              = qla24xx_chip_diag,
1583         .config_rings           = qla24xx_config_rings,
1584         .reset_adapter          = qla24xx_reset_adapter,
1585         .nvram_config           = qla24xx_nvram_config,
1586         .update_fw_options      = qla24xx_update_fw_options,
1587         .load_risc              = qla24xx_load_risc,
1588         .pci_info_str           = qla24xx_pci_info_str,
1589         .fw_version_str         = qla24xx_fw_version_str,
1590         .intr_handler           = qla24xx_intr_handler,
1591         .enable_intrs           = qla24xx_enable_intrs,
1592         .disable_intrs          = qla24xx_disable_intrs,
1593         .abort_command          = qla24xx_abort_command,
1594         .target_reset           = qla24xx_abort_target,
1595         .lun_reset              = qla24xx_lun_reset,
1596         .fabric_login           = qla24xx_login_fabric,
1597         .fabric_logout          = qla24xx_fabric_logout,
1598         .calc_req_entries       = NULL,
1599         .build_iocbs            = NULL,
1600         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1601         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1602         .read_nvram             = qla25xx_read_nvram_data,
1603         .write_nvram            = qla25xx_write_nvram_data,
1604         .fw_dump                = qla25xx_fw_dump,
1605         .beacon_on              = qla24xx_beacon_on,
1606         .beacon_off             = qla24xx_beacon_off,
1607         .beacon_blink           = qla24xx_beacon_blink,
1608         .read_optrom            = qla25xx_read_optrom_data,
1609         .write_optrom           = qla24xx_write_optrom_data,
1610         .get_flash_version      = qla24xx_get_flash_version,
1611         .start_scsi             = qla24xx_dif_start_scsi,
1612         .abort_isp              = qla2x00_abort_isp,
1613 };
1614
1615 static struct isp_operations qla81xx_isp_ops = {
1616         .pci_config             = qla25xx_pci_config,
1617         .reset_chip             = qla24xx_reset_chip,
1618         .chip_diag              = qla24xx_chip_diag,
1619         .config_rings           = qla24xx_config_rings,
1620         .reset_adapter          = qla24xx_reset_adapter,
1621         .nvram_config           = qla81xx_nvram_config,
1622         .update_fw_options      = qla81xx_update_fw_options,
1623         .load_risc              = qla81xx_load_risc,
1624         .pci_info_str           = qla24xx_pci_info_str,
1625         .fw_version_str         = qla24xx_fw_version_str,
1626         .intr_handler           = qla24xx_intr_handler,
1627         .enable_intrs           = qla24xx_enable_intrs,
1628         .disable_intrs          = qla24xx_disable_intrs,
1629         .abort_command          = qla24xx_abort_command,
1630         .target_reset           = qla24xx_abort_target,
1631         .lun_reset              = qla24xx_lun_reset,
1632         .fabric_login           = qla24xx_login_fabric,
1633         .fabric_logout          = qla24xx_fabric_logout,
1634         .calc_req_entries       = NULL,
1635         .build_iocbs            = NULL,
1636         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1637         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1638         .read_nvram             = NULL,
1639         .write_nvram            = NULL,
1640         .fw_dump                = qla81xx_fw_dump,
1641         .beacon_on              = qla24xx_beacon_on,
1642         .beacon_off             = qla24xx_beacon_off,
1643         .beacon_blink           = qla24xx_beacon_blink,
1644         .read_optrom            = qla25xx_read_optrom_data,
1645         .write_optrom           = qla24xx_write_optrom_data,
1646         .get_flash_version      = qla24xx_get_flash_version,
1647         .start_scsi             = qla24xx_dif_start_scsi,
1648         .abort_isp              = qla2x00_abort_isp,
1649 };
1650
1651 static struct isp_operations qla82xx_isp_ops = {
1652         .pci_config             = qla82xx_pci_config,
1653         .reset_chip             = qla82xx_reset_chip,
1654         .chip_diag              = qla24xx_chip_diag,
1655         .config_rings           = qla82xx_config_rings,
1656         .reset_adapter          = qla24xx_reset_adapter,
1657         .nvram_config           = qla81xx_nvram_config,
1658         .update_fw_options      = qla24xx_update_fw_options,
1659         .load_risc              = qla82xx_load_risc,
1660         .pci_info_str           = qla82xx_pci_info_str,
1661         .fw_version_str         = qla24xx_fw_version_str,
1662         .intr_handler           = qla82xx_intr_handler,
1663         .enable_intrs           = qla82xx_enable_intrs,
1664         .disable_intrs          = qla82xx_disable_intrs,
1665         .abort_command          = qla24xx_abort_command,
1666         .target_reset           = qla24xx_abort_target,
1667         .lun_reset              = qla24xx_lun_reset,
1668         .fabric_login           = qla24xx_login_fabric,
1669         .fabric_logout          = qla24xx_fabric_logout,
1670         .calc_req_entries       = NULL,
1671         .build_iocbs            = NULL,
1672         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1673         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1674         .read_nvram             = qla24xx_read_nvram_data,
1675         .write_nvram            = qla24xx_write_nvram_data,
1676         .fw_dump                = qla24xx_fw_dump,
1677         .beacon_on              = qla24xx_beacon_on,
1678         .beacon_off             = qla24xx_beacon_off,
1679         .beacon_blink           = qla24xx_beacon_blink,
1680         .read_optrom            = qla82xx_read_optrom_data,
1681         .write_optrom           = qla82xx_write_optrom_data,
1682         .get_flash_version      = qla24xx_get_flash_version,
1683         .start_scsi             = qla82xx_start_scsi,
1684         .abort_isp              = qla82xx_abort_isp,
1685 };
1686
1687 static inline void
1688 qla2x00_set_isp_flags(struct qla_hw_data *ha)
1689 {
1690         ha->device_type = DT_EXTENDED_IDS;
1691         switch (ha->pdev->device) {
1692         case PCI_DEVICE_ID_QLOGIC_ISP2100:
1693                 ha->device_type |= DT_ISP2100;
1694                 ha->device_type &= ~DT_EXTENDED_IDS;
1695                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1696                 break;
1697         case PCI_DEVICE_ID_QLOGIC_ISP2200:
1698                 ha->device_type |= DT_ISP2200;
1699                 ha->device_type &= ~DT_EXTENDED_IDS;
1700                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1701                 break;
1702         case PCI_DEVICE_ID_QLOGIC_ISP2300:
1703                 ha->device_type |= DT_ISP2300;
1704                 ha->device_type |= DT_ZIO_SUPPORTED;
1705                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1706                 break;
1707         case PCI_DEVICE_ID_QLOGIC_ISP2312:
1708                 ha->device_type |= DT_ISP2312;
1709                 ha->device_type |= DT_ZIO_SUPPORTED;
1710                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1711                 break;
1712         case PCI_DEVICE_ID_QLOGIC_ISP2322:
1713                 ha->device_type |= DT_ISP2322;
1714                 ha->device_type |= DT_ZIO_SUPPORTED;
1715                 if (ha->pdev->subsystem_vendor == 0x1028 &&
1716                     ha->pdev->subsystem_device == 0x0170)
1717                         ha->device_type |= DT_OEM_001;
1718                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1719                 break;
1720         case PCI_DEVICE_ID_QLOGIC_ISP6312:
1721                 ha->device_type |= DT_ISP6312;
1722                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1723                 break;
1724         case PCI_DEVICE_ID_QLOGIC_ISP6322:
1725                 ha->device_type |= DT_ISP6322;
1726                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1727                 break;
1728         case PCI_DEVICE_ID_QLOGIC_ISP2422:
1729                 ha->device_type |= DT_ISP2422;
1730                 ha->device_type |= DT_ZIO_SUPPORTED;
1731                 ha->device_type |= DT_FWI2;
1732                 ha->device_type |= DT_IIDMA;
1733                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1734                 break;
1735         case PCI_DEVICE_ID_QLOGIC_ISP2432:
1736                 ha->device_type |= DT_ISP2432;
1737                 ha->device_type |= DT_ZIO_SUPPORTED;
1738                 ha->device_type |= DT_FWI2;
1739                 ha->device_type |= DT_IIDMA;
1740                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1741                 break;
1742         case PCI_DEVICE_ID_QLOGIC_ISP8432:
1743                 ha->device_type |= DT_ISP8432;
1744                 ha->device_type |= DT_ZIO_SUPPORTED;
1745                 ha->device_type |= DT_FWI2;
1746                 ha->device_type |= DT_IIDMA;
1747                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1748                 break;
1749         case PCI_DEVICE_ID_QLOGIC_ISP5422:
1750                 ha->device_type |= DT_ISP5422;
1751                 ha->device_type |= DT_FWI2;
1752                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1753                 break;
1754         case PCI_DEVICE_ID_QLOGIC_ISP5432:
1755                 ha->device_type |= DT_ISP5432;
1756                 ha->device_type |= DT_FWI2;
1757                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1758                 break;
1759         case PCI_DEVICE_ID_QLOGIC_ISP2532:
1760                 ha->device_type |= DT_ISP2532;
1761                 ha->device_type |= DT_ZIO_SUPPORTED;
1762                 ha->device_type |= DT_FWI2;
1763                 ha->device_type |= DT_IIDMA;
1764                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1765                 break;
1766         case PCI_DEVICE_ID_QLOGIC_ISP8001:
1767                 ha->device_type |= DT_ISP8001;
1768                 ha->device_type |= DT_ZIO_SUPPORTED;
1769                 ha->device_type |= DT_FWI2;
1770                 ha->device_type |= DT_IIDMA;
1771                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1772                 break;
1773         case PCI_DEVICE_ID_QLOGIC_ISP8021:
1774                 ha->device_type |= DT_ISP8021;
1775                 ha->device_type |= DT_ZIO_SUPPORTED;
1776                 ha->device_type |= DT_FWI2;
1777                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1778                 /* Initialize 82XX ISP flags */
1779                 qla82xx_init_flags(ha);
1780                 break;
1781         }
1782
1783         if (IS_QLA82XX(ha))
1784                 ha->port_no = !(ha->portnum & 1);
1785         else
1786                 /* Get adapter physical port no from interrupt pin register. */
1787                 pci_read_config_byte(ha->pdev, PCI_INTERRUPT_PIN, &ha->port_no);
1788
1789         if (ha->port_no & 1)
1790                 ha->flags.port0 = 1;
1791         else
1792                 ha->flags.port0 = 0;
1793 }
1794
1795 static int
1796 qla2x00_iospace_config(struct qla_hw_data *ha)
1797 {
1798         resource_size_t pio;
1799         uint16_t msix;
1800         int cpus;
1801
1802         if (IS_QLA82XX(ha))
1803                 return qla82xx_iospace_config(ha);
1804
1805         if (pci_request_selected_regions(ha->pdev, ha->bars,
1806             QLA2XXX_DRIVER_NAME)) {
1807                 qla_printk(KERN_WARNING, ha,
1808                     "Failed to reserve PIO/MMIO regions (%s)\n",
1809                     pci_name(ha->pdev));
1810
1811                 goto iospace_error_exit;
1812         }
1813         if (!(ha->bars & 1))
1814                 goto skip_pio;
1815
1816         /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1817         pio = pci_resource_start(ha->pdev, 0);
1818         if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
1819                 if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1820                         qla_printk(KERN_WARNING, ha,
1821                             "Invalid PCI I/O region size (%s)...\n",
1822                                 pci_name(ha->pdev));
1823                         pio = 0;
1824                 }
1825         } else {
1826                 qla_printk(KERN_WARNING, ha,
1827                     "region #0 not a PIO resource (%s)...\n",
1828                     pci_name(ha->pdev));
1829                 pio = 0;
1830         }
1831         ha->pio_address = pio;
1832
1833 skip_pio:
1834         /* Use MMIO operations for all accesses. */
1835         if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
1836                 qla_printk(KERN_ERR, ha,
1837                     "region #1 not an MMIO resource (%s), aborting\n",
1838                     pci_name(ha->pdev));
1839                 goto iospace_error_exit;
1840         }
1841         if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
1842                 qla_printk(KERN_ERR, ha,
1843                     "Invalid PCI mem region size (%s), aborting\n",
1844                         pci_name(ha->pdev));
1845                 goto iospace_error_exit;
1846         }
1847
1848         ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
1849         if (!ha->iobase) {
1850                 qla_printk(KERN_ERR, ha,
1851                     "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1852
1853                 goto iospace_error_exit;
1854         }
1855
1856         /* Determine queue resources */
1857         ha->max_req_queues = ha->max_rsp_queues = 1;
1858         if ((ql2xmaxqueues <= 1 && !ql2xmultique_tag) ||
1859                 (ql2xmaxqueues > 1 && ql2xmultique_tag) ||
1860                 (!IS_QLA25XX(ha) && !IS_QLA81XX(ha)))
1861                 goto mqiobase_exit;
1862
1863         ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 3),
1864                         pci_resource_len(ha->pdev, 3));
1865         if (ha->mqiobase) {
1866                 /* Read MSIX vector size of the board */
1867                 pci_read_config_word(ha->pdev, QLA_PCI_MSIX_CONTROL, &msix);
1868                 ha->msix_count = msix;
1869                 /* Max queues are bounded by available msix vectors */
1870                 /* queue 0 uses two msix vectors */
1871                 if (ql2xmultique_tag) {
1872                         cpus = num_online_cpus();
1873                         ha->max_rsp_queues = (ha->msix_count - 1 > cpus) ?
1874                                 (cpus + 1) : (ha->msix_count - 1);
1875                         ha->max_req_queues = 2;
1876                 } else if (ql2xmaxqueues > 1) {
1877                         ha->max_req_queues = ql2xmaxqueues > QLA_MQ_SIZE ?
1878                                                 QLA_MQ_SIZE : ql2xmaxqueues;
1879                         DEBUG2(qla_printk(KERN_INFO, ha, "QoS mode set, max no"
1880                         " of request queues:%d\n", ha->max_req_queues));
1881                 }
1882                 qla_printk(KERN_INFO, ha,
1883                         "MSI-X vector count: %d\n", msix);
1884         } else
1885                 qla_printk(KERN_INFO, ha, "BAR 3 not enabled\n");
1886
1887 mqiobase_exit:
1888         ha->msix_count = ha->max_rsp_queues + 1;
1889         return (0);
1890
1891 iospace_error_exit:
1892         return (-ENOMEM);
1893 }
1894
1895 static void
1896 qla2xxx_scan_start(struct Scsi_Host *shost)
1897 {
1898         scsi_qla_host_t *vha = shost_priv(shost);
1899
1900         if (vha->hw->flags.running_gold_fw)
1901                 return;
1902
1903         set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1904         set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1905         set_bit(RSCN_UPDATE, &vha->dpc_flags);
1906         set_bit(NPIV_CONFIG_NEEDED, &vha->dpc_flags);
1907 }
1908
1909 static int
1910 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1911 {
1912         scsi_qla_host_t *vha = shost_priv(shost);
1913
1914         if (!vha->host)
1915                 return 1;
1916         if (time > vha->hw->loop_reset_delay * HZ)
1917                 return 1;
1918
1919         return atomic_read(&vha->loop_state) == LOOP_READY;
1920 }
1921
1922 /*
1923  * PCI driver interface
1924  */
1925 static int __devinit
1926 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1927 {
1928         int     ret = -ENODEV;
1929         struct Scsi_Host *host;
1930         scsi_qla_host_t *base_vha = NULL;
1931         struct qla_hw_data *ha;
1932         char pci_info[30];
1933         char fw_str[30];
1934         struct scsi_host_template *sht;
1935         int bars, max_id, mem_only = 0;
1936         uint16_t req_length = 0, rsp_length = 0;
1937         struct req_que *req = NULL;
1938         struct rsp_que *rsp = NULL;
1939
1940         bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
1941         sht = &qla2xxx_driver_template;
1942         if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1943             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1944             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8432 ||
1945             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1946             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
1947             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532 ||
1948             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8001 ||
1949             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8021) {
1950                 bars = pci_select_bars(pdev, IORESOURCE_MEM);
1951                 mem_only = 1;
1952         }
1953
1954         if (mem_only) {
1955                 if (pci_enable_device_mem(pdev))
1956                         goto probe_out;
1957         } else {
1958                 if (pci_enable_device(pdev))
1959                         goto probe_out;
1960         }
1961
1962         /* This may fail but that's ok */
1963         pci_enable_pcie_error_reporting(pdev);
1964
1965         ha = kzalloc(sizeof(struct qla_hw_data), GFP_KERNEL);
1966         if (!ha) {
1967                 DEBUG(printk("Unable to allocate memory for ha\n"));
1968                 goto probe_out;
1969         }
1970         ha->pdev = pdev;
1971
1972         /* Clear our data area */
1973         ha->bars = bars;
1974         ha->mem_only = mem_only;
1975         spin_lock_init(&ha->hardware_lock);
1976
1977         /* Set ISP-type information. */
1978         qla2x00_set_isp_flags(ha);
1979
1980         /* Set EEH reset type to fundamental if required by hba */
1981         if ( IS_QLA24XX(ha) || IS_QLA25XX(ha) || IS_QLA81XX(ha)) {
1982                 pdev->needs_freset = 1;
1983         }
1984
1985         /* Configure PCI I/O space */
1986         ret = qla2x00_iospace_config(ha);
1987         if (ret)
1988                 goto probe_hw_failed;
1989
1990         qla_printk(KERN_INFO, ha,
1991             "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1992             ha->iobase);
1993
1994         ha->prev_topology = 0;
1995         ha->init_cb_size = sizeof(init_cb_t);
1996         ha->link_data_rate = PORT_SPEED_UNKNOWN;
1997         ha->optrom_size = OPTROM_SIZE_2300;
1998
1999         /* Assign ISP specific operations. */
2000         max_id = MAX_TARGETS_2200;
2001         if (IS_QLA2100(ha)) {
2002                 max_id = MAX_TARGETS_2100;
2003                 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
2004                 req_length = REQUEST_ENTRY_CNT_2100;
2005                 rsp_length = RESPONSE_ENTRY_CNT_2100;
2006                 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
2007                 ha->gid_list_info_size = 4;
2008                 ha->flash_conf_off = ~0;
2009                 ha->flash_data_off = ~0;
2010                 ha->nvram_conf_off = ~0;
2011                 ha->nvram_data_off = ~0;
2012                 ha->isp_ops = &qla2100_isp_ops;
2013         } else if (IS_QLA2200(ha)) {
2014                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2015                 req_length = REQUEST_ENTRY_CNT_2200;
2016                 rsp_length = RESPONSE_ENTRY_CNT_2100;
2017                 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
2018                 ha->gid_list_info_size = 4;
2019                 ha->flash_conf_off = ~0;
2020                 ha->flash_data_off = ~0;
2021                 ha->nvram_conf_off = ~0;
2022                 ha->nvram_data_off = ~0;
2023                 ha->isp_ops = &qla2100_isp_ops;
2024         } else if (IS_QLA23XX(ha)) {
2025                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2026                 req_length = REQUEST_ENTRY_CNT_2200;
2027                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2028                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2029                 ha->gid_list_info_size = 6;
2030                 if (IS_QLA2322(ha) || IS_QLA6322(ha))
2031                         ha->optrom_size = OPTROM_SIZE_2322;
2032                 ha->flash_conf_off = ~0;
2033                 ha->flash_data_off = ~0;
2034                 ha->nvram_conf_off = ~0;
2035                 ha->nvram_data_off = ~0;
2036                 ha->isp_ops = &qla2300_isp_ops;
2037         } else if (IS_QLA24XX_TYPE(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_24xx);
2043                 ha->gid_list_info_size = 8;
2044                 ha->optrom_size = OPTROM_SIZE_24XX;
2045                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA24XX;
2046                 ha->isp_ops = &qla24xx_isp_ops;
2047                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2048                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2049                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2050                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2051         } else if (IS_QLA25XX(ha)) {
2052                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2053                 req_length = REQUEST_ENTRY_CNT_24XX;
2054                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2055                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2056                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
2057                 ha->gid_list_info_size = 8;
2058                 ha->optrom_size = OPTROM_SIZE_25XX;
2059                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2060                 ha->isp_ops = &qla25xx_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         } else if (IS_QLA81XX(ha)) {
2066                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2067                 req_length = REQUEST_ENTRY_CNT_24XX;
2068                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2069                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2070                 ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2071                 ha->gid_list_info_size = 8;
2072                 ha->optrom_size = OPTROM_SIZE_81XX;
2073                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2074                 ha->isp_ops = &qla81xx_isp_ops;
2075                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
2076                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
2077                 ha->nvram_conf_off = ~0;
2078                 ha->nvram_data_off = ~0;
2079         } else if (IS_QLA82XX(ha)) {
2080                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2081                 req_length = REQUEST_ENTRY_CNT_82XX;
2082                 rsp_length = RESPONSE_ENTRY_CNT_82XX;
2083                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2084                 ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2085                 ha->gid_list_info_size = 8;
2086                 ha->optrom_size = OPTROM_SIZE_82XX;
2087                 ha->isp_ops = &qla82xx_isp_ops;
2088                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2089                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2090                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2091                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2092         }
2093
2094         mutex_init(&ha->vport_lock);
2095         init_completion(&ha->mbx_cmd_comp);
2096         complete(&ha->mbx_cmd_comp);
2097         init_completion(&ha->mbx_intr_comp);
2098         init_completion(&ha->dcbx_comp);
2099
2100         set_bit(0, (unsigned long *) ha->vp_idx_map);
2101
2102         qla2x00_config_dma_addressing(ha);
2103         ret = qla2x00_mem_alloc(ha, req_length, rsp_length, &req, &rsp);
2104         if (!ret) {
2105                 qla_printk(KERN_WARNING, ha,
2106                     "[ERROR] Failed to allocate memory for adapter\n");
2107
2108                 goto probe_hw_failed;
2109         }
2110
2111         req->max_q_depth = MAX_Q_DEPTH;
2112         if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
2113                 req->max_q_depth = ql2xmaxqdepth;
2114
2115
2116         base_vha = qla2x00_create_host(sht, ha);
2117         if (!base_vha) {
2118                 qla_printk(KERN_WARNING, ha,
2119                     "[ERROR] Failed to allocate memory for scsi_host\n");
2120
2121                 ret = -ENOMEM;
2122                 qla2x00_mem_free(ha);
2123                 qla2x00_free_req_que(ha, req);
2124                 qla2x00_free_rsp_que(ha, rsp);
2125                 goto probe_hw_failed;
2126         }
2127
2128         pci_set_drvdata(pdev, base_vha);
2129
2130         host = base_vha->host;
2131         base_vha->req = req;
2132         host->can_queue = req->length + 128;
2133         if (IS_QLA2XXX_MIDTYPE(ha))
2134                 base_vha->mgmt_svr_loop_id = 10 + base_vha->vp_idx;
2135         else
2136                 base_vha->mgmt_svr_loop_id = MANAGEMENT_SERVER +
2137                                                 base_vha->vp_idx;
2138
2139         /* Set the SG table size based on ISP type */
2140         if (!IS_FWI2_CAPABLE(ha)) {
2141                 if (IS_QLA2100(ha))
2142                         host->sg_tablesize = 32;
2143         } else {
2144                 if (!IS_QLA82XX(ha))
2145                         host->sg_tablesize = QLA_SG_ALL;
2146         }
2147
2148         host->max_id = max_id;
2149         host->this_id = 255;
2150         host->cmd_per_lun = 3;
2151         host->unique_id = host->host_no;
2152         if ((IS_QLA25XX(ha) || IS_QLA81XX(ha)) && ql2xenabledif)
2153                 host->max_cmd_len = 32;
2154         else
2155                 host->max_cmd_len = MAX_CMDSZ;
2156         host->max_channel = MAX_BUSES - 1;
2157         host->max_lun = MAX_LUNS;
2158         host->transportt = qla2xxx_transport_template;
2159         sht->vendor_id = (SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC);
2160
2161         /* Set up the irqs */
2162         ret = qla2x00_request_irqs(ha, rsp);
2163         if (ret)
2164                 goto probe_init_failed;
2165
2166         pci_save_state(pdev);
2167
2168         /* Alloc arrays of request and response ring ptrs */
2169 que_init:
2170         if (!qla2x00_alloc_queues(ha)) {
2171                 qla_printk(KERN_WARNING, ha,
2172                 "[ERROR] Failed to allocate memory for queue"
2173                 " pointers\n");
2174                 goto probe_init_failed;
2175         }
2176
2177         ha->rsp_q_map[0] = rsp;
2178         ha->req_q_map[0] = req;
2179         rsp->req = req;
2180         req->rsp = rsp;
2181         set_bit(0, ha->req_qid_map);
2182         set_bit(0, ha->rsp_qid_map);
2183         /* FWI2-capable only. */
2184         req->req_q_in = &ha->iobase->isp24.req_q_in;
2185         req->req_q_out = &ha->iobase->isp24.req_q_out;
2186         rsp->rsp_q_in = &ha->iobase->isp24.rsp_q_in;
2187         rsp->rsp_q_out = &ha->iobase->isp24.rsp_q_out;
2188         if (ha->mqenable) {
2189                 req->req_q_in = &ha->mqiobase->isp25mq.req_q_in;
2190                 req->req_q_out = &ha->mqiobase->isp25mq.req_q_out;
2191                 rsp->rsp_q_in = &ha->mqiobase->isp25mq.rsp_q_in;
2192                 rsp->rsp_q_out =  &ha->mqiobase->isp25mq.rsp_q_out;
2193         }
2194
2195         if (IS_QLA82XX(ha)) {
2196                 req->req_q_out = &ha->iobase->isp82.req_q_out[0];
2197                 rsp->rsp_q_in = &ha->iobase->isp82.rsp_q_in[0];
2198                 rsp->rsp_q_out = &ha->iobase->isp82.rsp_q_out[0];
2199         }
2200
2201         if (qla2x00_initialize_adapter(base_vha)) {
2202                 qla_printk(KERN_WARNING, ha,
2203                     "Failed to initialize adapter\n");
2204
2205                 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
2206                     "Adapter flags %x.\n",
2207                     base_vha->host_no, base_vha->device_flags));
2208
2209                 if (IS_QLA82XX(ha)) {
2210                         qla82xx_idc_lock(ha);
2211                         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
2212                                 QLA82XX_DEV_FAILED);
2213                         qla82xx_idc_unlock(ha);
2214                         qla_printk(KERN_INFO, ha, "HW State: FAILED\n");
2215                 }
2216
2217                 ret = -ENODEV;
2218                 goto probe_failed;
2219         }
2220
2221         if (ha->mqenable) {
2222                 if (qla25xx_setup_mode(base_vha)) {
2223                         qla_printk(KERN_WARNING, ha,
2224                                 "Can't create queues, falling back to single"
2225                                 " queue mode\n");
2226                         goto que_init;
2227                 }
2228         }
2229
2230         if (ha->flags.running_gold_fw)
2231                 goto skip_dpc;
2232
2233         /*
2234          * Startup the kernel thread for this host adapter
2235          */
2236         ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
2237                         "%s_dpc", base_vha->host_str);
2238         if (IS_ERR(ha->dpc_thread)) {
2239                 qla_printk(KERN_WARNING, ha,
2240                     "Unable to start DPC thread!\n");
2241                 ret = PTR_ERR(ha->dpc_thread);
2242                 goto probe_failed;
2243         }
2244
2245 skip_dpc:
2246         list_add_tail(&base_vha->list, &ha->vp_list);
2247         base_vha->host->irq = ha->pdev->irq;
2248
2249         /* Initialized the timer */
2250         qla2x00_start_timer(base_vha, qla2x00_timer, WATCH_INTERVAL);
2251
2252         DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
2253             base_vha->host_no, ha));
2254
2255         if ((IS_QLA25XX(ha) || IS_QLA81XX(ha)) && ql2xenabledif) {
2256                 if (ha->fw_attributes & BIT_4) {
2257                         base_vha->flags.difdix_supported = 1;
2258                         DEBUG18(qla_printk(KERN_INFO, ha,
2259                             "Registering for DIF/DIX type 1 and 3"
2260                             " protection.\n"));
2261                         scsi_host_set_prot(host,
2262                             SHOST_DIF_TYPE1_PROTECTION
2263                             | SHOST_DIF_TYPE2_PROTECTION
2264                             | SHOST_DIF_TYPE3_PROTECTION
2265                             | SHOST_DIX_TYPE1_PROTECTION
2266                             | SHOST_DIX_TYPE2_PROTECTION
2267                             | SHOST_DIX_TYPE3_PROTECTION);
2268                         scsi_host_set_guard(host, SHOST_DIX_GUARD_CRC);
2269                 } else
2270                         base_vha->flags.difdix_supported = 0;
2271         }
2272
2273         ha->isp_ops->enable_intrs(ha);
2274
2275         ret = scsi_add_host(host, &pdev->dev);
2276         if (ret)
2277                 goto probe_failed;
2278
2279         base_vha->flags.init_done = 1;
2280         base_vha->flags.online = 1;
2281
2282         scsi_scan_host(host);
2283
2284         qla2x00_alloc_sysfs_attr(base_vha);
2285
2286         qla2x00_init_host_attr(base_vha);
2287
2288         qla2x00_dfs_setup(base_vha);
2289
2290         qla_printk(KERN_INFO, ha, "\n"
2291             " QLogic Fibre Channel HBA Driver: %s\n"
2292             "  QLogic %s - %s\n"
2293             "  ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
2294             qla2x00_version_str, ha->model_number,
2295             ha->model_desc ? ha->model_desc : "", pdev->device,
2296             ha->isp_ops->pci_info_str(base_vha, pci_info), pci_name(pdev),
2297             ha->flags.enable_64bit_addressing ? '+' : '-', base_vha->host_no,
2298             ha->isp_ops->fw_version_str(base_vha, fw_str));
2299
2300         return 0;
2301
2302 probe_init_failed:
2303         qla2x00_free_req_que(ha, req);
2304         qla2x00_free_rsp_que(ha, rsp);
2305         ha->max_req_queues = ha->max_rsp_queues = 0;
2306
2307 probe_failed:
2308         if (base_vha->timer_active)
2309                 qla2x00_stop_timer(base_vha);
2310         base_vha->flags.online = 0;
2311         if (ha->dpc_thread) {
2312                 struct task_struct *t = ha->dpc_thread;
2313
2314                 ha->dpc_thread = NULL;
2315                 kthread_stop(t);
2316         }
2317
2318         qla2x00_free_device(base_vha);
2319
2320         scsi_host_put(base_vha->host);
2321
2322 probe_hw_failed:
2323         if (IS_QLA82XX(ha)) {
2324                 qla82xx_idc_lock(ha);
2325                 qla82xx_clear_drv_active(ha);
2326                 qla82xx_idc_unlock(ha);
2327                 iounmap((device_reg_t __iomem *)ha->nx_pcibase);
2328                 if (!ql2xdbwr)
2329                         iounmap((device_reg_t __iomem *)ha->nxdb_wr_ptr);
2330         } else {
2331                 if (ha->iobase)
2332                         iounmap(ha->iobase);
2333         }
2334         pci_release_selected_regions(ha->pdev, ha->bars);
2335         kfree(ha);
2336         ha = NULL;
2337
2338 probe_out:
2339         pci_disable_device(pdev);
2340         return ret;
2341 }
2342
2343 static void
2344 qla2x00_remove_one(struct pci_dev *pdev)
2345 {
2346         scsi_qla_host_t *base_vha, *vha;
2347         struct qla_hw_data  *ha;
2348         unsigned long flags;
2349
2350         base_vha = pci_get_drvdata(pdev);
2351         ha = base_vha->hw;
2352
2353         spin_lock_irqsave(&ha->vport_slock, flags);
2354         list_for_each_entry(vha, &ha->vp_list, list) {
2355                 atomic_inc(&vha->vref_count);
2356
2357                 if (vha && vha->fc_vport) {
2358                         spin_unlock_irqrestore(&ha->vport_slock, flags);
2359
2360                         fc_vport_terminate(vha->fc_vport);
2361
2362                         spin_lock_irqsave(&ha->vport_slock, flags);
2363                 }
2364
2365                 atomic_dec(&vha->vref_count);
2366         }
2367         spin_unlock_irqrestore(&ha->vport_slock, flags);
2368
2369         set_bit(UNLOADING, &base_vha->dpc_flags);
2370
2371         qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
2372
2373         qla2x00_dfs_remove(base_vha);
2374
2375         qla84xx_put_chip(base_vha);
2376
2377         /* Disable timer */
2378         if (base_vha->timer_active)
2379                 qla2x00_stop_timer(base_vha);
2380
2381         base_vha->flags.online = 0;
2382
2383         /* Flush the work queue and remove it */
2384         if (ha->wq) {
2385                 flush_workqueue(ha->wq);
2386                 destroy_workqueue(ha->wq);
2387                 ha->wq = NULL;
2388         }
2389
2390         /* Kill the kernel thread for this host */
2391         if (ha->dpc_thread) {
2392                 struct task_struct *t = ha->dpc_thread;
2393
2394                 /*
2395                  * qla2xxx_wake_dpc checks for ->dpc_thread
2396                  * so we need to zero it out.
2397                  */
2398                 ha->dpc_thread = NULL;
2399                 kthread_stop(t);
2400         }
2401
2402         qla2x00_free_sysfs_attr(base_vha);
2403
2404         fc_remove_host(base_vha->host);
2405
2406         scsi_remove_host(base_vha->host);
2407
2408         qla2x00_free_device(base_vha);
2409
2410         scsi_host_put(base_vha->host);
2411
2412         if (IS_QLA82XX(ha)) {
2413                 qla82xx_idc_lock(ha);
2414                 qla82xx_clear_drv_active(ha);
2415                 qla82xx_idc_unlock(ha);
2416
2417                 iounmap((device_reg_t __iomem *)ha->nx_pcibase);
2418                 if (!ql2xdbwr)
2419                         iounmap((device_reg_t __iomem *)ha->nxdb_wr_ptr);
2420         } else {
2421                 if (ha->iobase)
2422                         iounmap(ha->iobase);
2423
2424                 if (ha->mqiobase)
2425                         iounmap(ha->mqiobase);
2426         }
2427
2428         pci_release_selected_regions(ha->pdev, ha->bars);
2429         kfree(ha);
2430         ha = NULL;
2431
2432         pci_disable_pcie_error_reporting(pdev);
2433
2434         pci_disable_device(pdev);
2435         pci_set_drvdata(pdev, NULL);
2436 }
2437
2438 static void
2439 qla2x00_free_device(scsi_qla_host_t *vha)
2440 {
2441         struct qla_hw_data *ha = vha->hw;
2442
2443         qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
2444
2445         /* Disable timer */
2446         if (vha->timer_active)
2447                 qla2x00_stop_timer(vha);
2448
2449         /* Kill the kernel thread for this host */
2450         if (ha->dpc_thread) {
2451                 struct task_struct *t = ha->dpc_thread;
2452
2453                 /*
2454                  * qla2xxx_wake_dpc checks for ->dpc_thread
2455                  * so we need to zero it out.
2456                  */
2457                 ha->dpc_thread = NULL;
2458                 kthread_stop(t);
2459         }
2460
2461         qla25xx_delete_queues(vha);
2462
2463         if (ha->flags.fce_enabled)
2464                 qla2x00_disable_fce_trace(vha, NULL, NULL);
2465
2466         if (ha->eft)
2467                 qla2x00_disable_eft_trace(vha);
2468
2469         /* Stop currently executing firmware. */
2470         qla2x00_try_to_stop_firmware(vha);
2471
2472         vha->flags.online = 0;
2473
2474         /* turn-off interrupts on the card */
2475         if (ha->interrupts_on) {
2476                 vha->flags.init_done = 0;
2477                 ha->isp_ops->disable_intrs(ha);
2478         }
2479
2480         qla2x00_free_irqs(vha);
2481
2482         qla2x00_free_fcports(vha);
2483
2484         qla2x00_mem_free(ha);
2485
2486         qla2x00_free_queues(ha);
2487 }
2488
2489 void qla2x00_free_fcports(struct scsi_qla_host *vha)
2490 {
2491         fc_port_t *fcport, *tfcport;
2492
2493         list_for_each_entry_safe(fcport, tfcport, &vha->vp_fcports, list) {
2494                 list_del(&fcport->list);
2495                 kfree(fcport);
2496                 fcport = NULL;
2497         }
2498 }
2499
2500 static inline void
2501 qla2x00_schedule_rport_del(struct scsi_qla_host *vha, fc_port_t *fcport,
2502     int defer)
2503 {
2504         struct fc_rport *rport;
2505         scsi_qla_host_t *base_vha;
2506
2507         if (!fcport->rport)
2508                 return;
2509
2510         rport = fcport->rport;
2511         if (defer) {
2512                 base_vha = pci_get_drvdata(vha->hw->pdev);
2513                 spin_lock_irq(vha->host->host_lock);
2514                 fcport->drport = rport;
2515                 spin_unlock_irq(vha->host->host_lock);
2516                 set_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
2517                 qla2xxx_wake_dpc(base_vha);
2518         } else
2519                 fc_remote_port_delete(rport);
2520 }
2521
2522 /*
2523  * qla2x00_mark_device_lost Updates fcport state when device goes offline.
2524  *
2525  * Input: ha = adapter block pointer.  fcport = port structure pointer.
2526  *
2527  * Return: None.
2528  *
2529  * Context:
2530  */
2531 void qla2x00_mark_device_lost(scsi_qla_host_t *vha, fc_port_t *fcport,
2532     int do_login, int defer)
2533 {
2534         if (atomic_read(&fcport->state) == FCS_ONLINE &&
2535             vha->vp_idx == fcport->vp_idx) {
2536                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2537                 qla2x00_schedule_rport_del(vha, fcport, defer);
2538         }
2539         /*
2540          * We may need to retry the login, so don't change the state of the
2541          * port but do the retries.
2542          */
2543         if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
2544                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2545
2546         if (!do_login)
2547                 return;
2548
2549         if (fcport->login_retry == 0) {
2550                 fcport->login_retry = vha->hw->login_retry_count;
2551                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2552
2553                 DEBUG(printk("scsi(%ld): Port login retry: "
2554                     "%02x%02x%02x%02x%02x%02x%02x%02x, "
2555                     "id = 0x%04x retry cnt=%d\n",
2556                     vha->host_no,
2557                     fcport->port_name[0],
2558                     fcport->port_name[1],
2559                     fcport->port_name[2],
2560                     fcport->port_name[3],
2561                     fcport->port_name[4],
2562                     fcport->port_name[5],
2563                     fcport->port_name[6],
2564                     fcport->port_name[7],
2565                     fcport->loop_id,
2566                     fcport->login_retry));
2567         }
2568 }
2569
2570 /*
2571  * qla2x00_mark_all_devices_lost
2572  *      Updates fcport state when device goes offline.
2573  *
2574  * Input:
2575  *      ha = adapter block pointer.
2576  *      fcport = port structure pointer.
2577  *
2578  * Return:
2579  *      None.
2580  *
2581  * Context:
2582  */
2583 void
2584 qla2x00_mark_all_devices_lost(scsi_qla_host_t *vha, int defer)
2585 {
2586         fc_port_t *fcport;
2587
2588         list_for_each_entry(fcport, &vha->vp_fcports, list) {
2589                 if (vha->vp_idx != 0 && vha->vp_idx != fcport->vp_idx)
2590                         continue;
2591
2592                 /*
2593                  * No point in marking the device as lost, if the device is
2594                  * already DEAD.
2595                  */
2596                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
2597                         continue;
2598                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
2599                         if (defer)
2600                                 qla2x00_schedule_rport_del(vha, fcport, defer);
2601                         else if (vha->vp_idx == fcport->vp_idx)
2602                                 qla2x00_schedule_rport_del(vha, fcport, defer);
2603                 }
2604                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2605         }
2606 }
2607
2608 /*
2609 * qla2x00_mem_alloc
2610 *      Allocates adapter memory.
2611 *
2612 * Returns:
2613 *      0  = success.
2614 *      !0  = failure.
2615 */
2616 static int
2617 qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
2618         struct req_que **req, struct rsp_que **rsp)
2619 {
2620         char    name[16];
2621
2622         ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
2623                 &ha->init_cb_dma, GFP_KERNEL);
2624         if (!ha->init_cb)
2625                 goto fail;
2626
2627         ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
2628                 &ha->gid_list_dma, GFP_KERNEL);
2629         if (!ha->gid_list)
2630                 goto fail_free_init_cb;
2631
2632         ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
2633         if (!ha->srb_mempool)
2634                 goto fail_free_gid_list;
2635
2636         if (IS_QLA82XX(ha)) {
2637                 /* Allocate cache for CT6 Ctx. */
2638                 if (!ctx_cachep) {
2639                         ctx_cachep = kmem_cache_create("qla2xxx_ctx",
2640                                 sizeof(struct ct6_dsd), 0,
2641                                 SLAB_HWCACHE_ALIGN, NULL);
2642                         if (!ctx_cachep)
2643                                 goto fail_free_gid_list;
2644                 }
2645                 ha->ctx_mempool = mempool_create_slab_pool(SRB_MIN_REQ,
2646                         ctx_cachep);
2647                 if (!ha->ctx_mempool)
2648                         goto fail_free_srb_mempool;
2649         }
2650
2651         /* Get memory for cached NVRAM */
2652         ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
2653         if (!ha->nvram)
2654                 goto fail_free_ctx_mempool;
2655
2656         snprintf(name, sizeof(name), "%s_%d", QLA2XXX_DRIVER_NAME,
2657                 ha->pdev->device);
2658         ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2659                 DMA_POOL_SIZE, 8, 0);
2660         if (!ha->s_dma_pool)
2661                 goto fail_free_nvram;
2662
2663         if (IS_QLA82XX(ha) || ql2xenabledif) {
2664                 ha->dl_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2665                         DSD_LIST_DMA_POOL_SIZE, 8, 0);
2666                 if (!ha->dl_dma_pool) {
2667                         qla_printk(KERN_WARNING, ha,
2668                             "Memory Allocation failed - dl_dma_pool\n");
2669                         goto fail_s_dma_pool;
2670                 }
2671
2672                 ha->fcp_cmnd_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2673                         FCP_CMND_DMA_POOL_SIZE, 8, 0);
2674                 if (!ha->fcp_cmnd_dma_pool) {
2675                         qla_printk(KERN_WARNING, ha,
2676                             "Memory Allocation failed - fcp_cmnd_dma_pool\n");
2677                         goto fail_dl_dma_pool;
2678                 }
2679         }
2680
2681         /* Allocate memory for SNS commands */
2682         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2683         /* Get consistent memory allocated for SNS commands */
2684                 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
2685                 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
2686                 if (!ha->sns_cmd)
2687                         goto fail_dma_pool;
2688         } else {
2689         /* Get consistent memory allocated for MS IOCB */
2690                 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2691                         &ha->ms_iocb_dma);
2692                 if (!ha->ms_iocb)
2693                         goto fail_dma_pool;
2694         /* Get consistent memory allocated for CT SNS commands */
2695                 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2696                         sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
2697                 if (!ha->ct_sns)
2698                         goto fail_free_ms_iocb;
2699         }
2700
2701         /* Allocate memory for request ring */
2702         *req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
2703         if (!*req) {
2704                 DEBUG(printk("Unable to allocate memory for req\n"));
2705                 goto fail_req;
2706         }
2707         (*req)->length = req_len;
2708         (*req)->ring = dma_alloc_coherent(&ha->pdev->dev,
2709                 ((*req)->length + 1) * sizeof(request_t),
2710                 &(*req)->dma, GFP_KERNEL);
2711         if (!(*req)->ring) {
2712                 DEBUG(printk("Unable to allocate memory for req_ring\n"));
2713                 goto fail_req_ring;
2714         }
2715         /* Allocate memory for response ring */
2716         *rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
2717         if (!*rsp) {
2718                 qla_printk(KERN_WARNING, ha,
2719                         "Unable to allocate memory for rsp\n");
2720                 goto fail_rsp;
2721         }
2722         (*rsp)->hw = ha;
2723         (*rsp)->length = rsp_len;
2724         (*rsp)->ring = dma_alloc_coherent(&ha->pdev->dev,
2725                 ((*rsp)->length + 1) * sizeof(response_t),
2726                 &(*rsp)->dma, GFP_KERNEL);
2727         if (!(*rsp)->ring) {
2728                 qla_printk(KERN_WARNING, ha,
2729                         "Unable to allocate memory for rsp_ring\n");
2730                 goto fail_rsp_ring;
2731         }
2732         (*req)->rsp = *rsp;
2733         (*rsp)->req = *req;
2734         /* Allocate memory for NVRAM data for vports */
2735         if (ha->nvram_npiv_size) {
2736                 ha->npiv_info = kzalloc(sizeof(struct qla_npiv_entry) *
2737                                         ha->nvram_npiv_size, GFP_KERNEL);
2738                 if (!ha->npiv_info) {
2739                         qla_printk(KERN_WARNING, ha,
2740                                 "Unable to allocate memory for npiv info\n");
2741                         goto fail_npiv_info;
2742                 }
2743         } else
2744                 ha->npiv_info = NULL;
2745
2746         /* Get consistent memory allocated for EX-INIT-CB. */
2747         if (IS_QLA8XXX_TYPE(ha)) {
2748                 ha->ex_init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2749                     &ha->ex_init_cb_dma);
2750                 if (!ha->ex_init_cb)
2751                         goto fail_ex_init_cb;
2752         }
2753
2754         INIT_LIST_HEAD(&ha->gbl_dsd_list);
2755
2756         /* Get consistent memory allocated for Async Port-Database. */
2757         if (!IS_FWI2_CAPABLE(ha)) {
2758                 ha->async_pd = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2759                         &ha->async_pd_dma);
2760                 if (!ha->async_pd)
2761                         goto fail_async_pd;
2762         }
2763
2764         INIT_LIST_HEAD(&ha->vp_list);
2765         return 1;
2766
2767 fail_async_pd:
2768         dma_pool_free(ha->s_dma_pool, ha->ex_init_cb, ha->ex_init_cb_dma);
2769 fail_ex_init_cb:
2770         kfree(ha->npiv_info);
2771 fail_npiv_info:
2772         dma_free_coherent(&ha->pdev->dev, ((*rsp)->length + 1) *
2773                 sizeof(response_t), (*rsp)->ring, (*rsp)->dma);
2774         (*rsp)->ring = NULL;
2775         (*rsp)->dma = 0;
2776 fail_rsp_ring:
2777         kfree(*rsp);
2778 fail_rsp:
2779         dma_free_coherent(&ha->pdev->dev, ((*req)->length + 1) *
2780                 sizeof(request_t), (*req)->ring, (*req)->dma);
2781         (*req)->ring = NULL;
2782         (*req)->dma = 0;
2783 fail_req_ring:
2784         kfree(*req);
2785 fail_req:
2786         dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2787                 ha->ct_sns, ha->ct_sns_dma);
2788         ha->ct_sns = NULL;
2789         ha->ct_sns_dma = 0;
2790 fail_free_ms_iocb:
2791         dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2792         ha->ms_iocb = NULL;
2793         ha->ms_iocb_dma = 0;
2794 fail_dma_pool:
2795         if (IS_QLA82XX(ha) || ql2xenabledif) {
2796                 dma_pool_destroy(ha->fcp_cmnd_dma_pool);
2797                 ha->fcp_cmnd_dma_pool = NULL;
2798         }
2799 fail_dl_dma_pool:
2800         if (IS_QLA82XX(ha) || ql2xenabledif) {
2801                 dma_pool_destroy(ha->dl_dma_pool);
2802                 ha->dl_dma_pool = NULL;
2803         }
2804 fail_s_dma_pool:
2805         dma_pool_destroy(ha->s_dma_pool);
2806         ha->s_dma_pool = NULL;
2807 fail_free_nvram:
2808         kfree(ha->nvram);
2809         ha->nvram = NULL;
2810 fail_free_ctx_mempool:
2811         mempool_destroy(ha->ctx_mempool);
2812         ha->ctx_mempool = NULL;
2813 fail_free_srb_mempool:
2814         mempool_destroy(ha->srb_mempool);
2815         ha->srb_mempool = NULL;
2816 fail_free_gid_list:
2817         dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2818         ha->gid_list_dma);
2819         ha->gid_list = NULL;
2820         ha->gid_list_dma = 0;
2821 fail_free_init_cb:
2822         dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
2823         ha->init_cb_dma);
2824         ha->init_cb = NULL;
2825         ha->init_cb_dma = 0;
2826 fail:
2827         DEBUG(printk("%s: Memory allocation failure\n", __func__));
2828         return -ENOMEM;
2829 }
2830
2831 /*
2832 * qla2x00_mem_free
2833 *      Frees all adapter allocated memory.
2834 *
2835 * Input:
2836 *      ha = adapter block pointer.
2837 */
2838 static void
2839 qla2x00_mem_free(struct qla_hw_data *ha)
2840 {
2841         if (ha->srb_mempool)
2842                 mempool_destroy(ha->srb_mempool);
2843
2844         if (ha->fce)
2845                 dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
2846                 ha->fce_dma);
2847
2848         if (ha->fw_dump) {
2849                 if (ha->eft)
2850                         dma_free_coherent(&ha->pdev->dev,
2851                         ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2852                 vfree(ha->fw_dump);
2853         }
2854
2855         if (ha->dcbx_tlv)
2856                 dma_free_coherent(&ha->pdev->dev, DCBX_TLV_DATA_SIZE,
2857                     ha->dcbx_tlv, ha->dcbx_tlv_dma);
2858
2859         if (ha->xgmac_data)
2860                 dma_free_coherent(&ha->pdev->dev, XGMAC_DATA_SIZE,
2861                     ha->xgmac_data, ha->xgmac_data_dma);
2862
2863         if (ha->sns_cmd)
2864                 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2865                 ha->sns_cmd, ha->sns_cmd_dma);
2866
2867         if (ha->ct_sns)
2868                 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2869                 ha->ct_sns, ha->ct_sns_dma);
2870
2871         if (ha->sfp_data)
2872                 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2873
2874         if (ha->edc_data)
2875                 dma_pool_free(ha->s_dma_pool, ha->edc_data, ha->edc_data_dma);
2876
2877         if (ha->ms_iocb)
2878                 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2879
2880         if (ha->ex_init_cb)
2881                 dma_pool_free(ha->s_dma_pool,
2882                         ha->ex_init_cb, ha->ex_init_cb_dma);
2883
2884         if (ha->async_pd)
2885                 dma_pool_free(ha->s_dma_pool, ha->async_pd, ha->async_pd_dma);
2886
2887         if (ha->s_dma_pool)
2888                 dma_pool_destroy(ha->s_dma_pool);
2889
2890         if (ha->gid_list)
2891                 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2892                 ha->gid_list_dma);
2893
2894         if (IS_QLA82XX(ha)) {
2895                 if (!list_empty(&ha->gbl_dsd_list)) {
2896                         struct dsd_dma *dsd_ptr, *tdsd_ptr;
2897
2898                         /* clean up allocated prev pool */
2899                         list_for_each_entry_safe(dsd_ptr,
2900                                 tdsd_ptr, &ha->gbl_dsd_list, list) {
2901                                 dma_pool_free(ha->dl_dma_pool,
2902                                 dsd_ptr->dsd_addr, dsd_ptr->dsd_list_dma);
2903                                 list_del(&dsd_ptr->list);
2904                                 kfree(dsd_ptr);
2905                         }
2906                 }
2907         }
2908
2909         if (ha->dl_dma_pool)
2910                 dma_pool_destroy(ha->dl_dma_pool);
2911
2912         if (ha->fcp_cmnd_dma_pool)
2913                 dma_pool_destroy(ha->fcp_cmnd_dma_pool);
2914
2915         if (ha->ctx_mempool)
2916                 mempool_destroy(ha->ctx_mempool);
2917
2918         if (ha->init_cb)
2919                 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
2920                         ha->init_cb, ha->init_cb_dma);
2921         vfree(ha->optrom_buffer);
2922         kfree(ha->nvram);
2923         kfree(ha->npiv_info);
2924
2925         ha->srb_mempool = NULL;
2926         ha->ctx_mempool = NULL;
2927         ha->eft = NULL;
2928         ha->eft_dma = 0;
2929         ha->sns_cmd = NULL;
2930         ha->sns_cmd_dma = 0;
2931         ha->ct_sns = NULL;
2932         ha->ct_sns_dma = 0;
2933         ha->ms_iocb = NULL;
2934         ha->ms_iocb_dma = 0;
2935         ha->init_cb = NULL;
2936         ha->init_cb_dma = 0;
2937         ha->ex_init_cb = NULL;
2938         ha->ex_init_cb_dma = 0;
2939         ha->async_pd = NULL;
2940         ha->async_pd_dma = 0;
2941
2942         ha->s_dma_pool = NULL;
2943         ha->dl_dma_pool = NULL;
2944         ha->fcp_cmnd_dma_pool = NULL;
2945
2946         ha->gid_list = NULL;
2947         ha->gid_list_dma = 0;
2948
2949         ha->fw_dump = NULL;
2950         ha->fw_dumped = 0;
2951         ha->fw_dump_reading = 0;
2952 }
2953
2954 struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht,
2955                                                 struct qla_hw_data *ha)
2956 {
2957         struct Scsi_Host *host;
2958         struct scsi_qla_host *vha = NULL;
2959
2960         host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
2961         if (host == NULL) {
2962                 printk(KERN_WARNING
2963                 "qla2xxx: Couldn't allocate host from scsi layer!\n");
2964                 goto fail;
2965         }
2966
2967         /* Clear our data area */
2968         vha = shost_priv(host);
2969         memset(vha, 0, sizeof(scsi_qla_host_t));
2970
2971         vha->host = host;
2972         vha->host_no = host->host_no;
2973         vha->hw = ha;
2974
2975         INIT_LIST_HEAD(&vha->vp_fcports);
2976         INIT_LIST_HEAD(&vha->work_list);
2977         INIT_LIST_HEAD(&vha->list);
2978
2979         spin_lock_init(&vha->work_lock);
2980
2981         sprintf(vha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, vha->host_no);
2982         return vha;
2983
2984 fail:
2985         return vha;
2986 }
2987
2988 static struct qla_work_evt *
2989 qla2x00_alloc_work(struct scsi_qla_host *vha, enum qla_work_type type)
2990 {
2991         struct qla_work_evt *e;
2992         uint8_t bail;
2993
2994         QLA_VHA_MARK_BUSY(vha, bail);
2995         if (bail)
2996                 return NULL;
2997
2998         e = kzalloc(sizeof(struct qla_work_evt), GFP_ATOMIC);
2999         if (!e) {
3000                 QLA_VHA_MARK_NOT_BUSY(vha);
3001                 return NULL;
3002         }
3003
3004         INIT_LIST_HEAD(&e->list);
3005         e->type = type;
3006         e->flags = QLA_EVT_FLAG_FREE;
3007         return e;
3008 }
3009
3010 static int
3011 qla2x00_post_work(struct scsi_qla_host *vha, struct qla_work_evt *e)
3012 {
3013         unsigned long flags;
3014
3015         spin_lock_irqsave(&vha->work_lock, flags);
3016         list_add_tail(&e->list, &vha->work_list);
3017         spin_unlock_irqrestore(&vha->work_lock, flags);
3018         qla2xxx_wake_dpc(vha);
3019
3020         return QLA_SUCCESS;
3021 }
3022
3023 int
3024 qla2x00_post_aen_work(struct scsi_qla_host *vha, enum fc_host_event_code code,
3025     u32 data)
3026 {
3027         struct qla_work_evt *e;
3028
3029         e = qla2x00_alloc_work(vha, QLA_EVT_AEN);
3030         if (!e)
3031                 return QLA_FUNCTION_FAILED;
3032
3033         e->u.aen.code = code;
3034         e->u.aen.data = data;
3035         return qla2x00_post_work(vha, e);
3036 }
3037
3038 int
3039 qla2x00_post_idc_ack_work(struct scsi_qla_host *vha, uint16_t *mb)
3040 {
3041         struct qla_work_evt *e;
3042
3043         e = qla2x00_alloc_work(vha, QLA_EVT_IDC_ACK);
3044         if (!e)
3045                 return QLA_FUNCTION_FAILED;
3046
3047         memcpy(e->u.idc_ack.mb, mb, QLA_IDC_ACK_REGS * sizeof(uint16_t));
3048         return qla2x00_post_work(vha, e);
3049 }
3050
3051 #define qla2x00_post_async_work(name, type)     \
3052 int qla2x00_post_async_##name##_work(           \
3053     struct scsi_qla_host *vha,                  \
3054     fc_port_t *fcport, uint16_t *data)          \
3055 {                                               \
3056         struct qla_work_evt *e;                 \
3057                                                 \
3058         e = qla2x00_alloc_work(vha, type);      \
3059         if (!e)                                 \
3060                 return QLA_FUNCTION_FAILED;     \
3061                                                 \
3062         e->u.logio.fcport = fcport;             \
3063         if (data) {                             \
3064                 e->u.logio.data[0] = data[0];   \
3065                 e->u.logio.data[1] = data[1];   \
3066         }                                       \
3067         return qla2x00_post_work(vha, e);       \
3068 }
3069
3070 qla2x00_post_async_work(login, QLA_EVT_ASYNC_LOGIN);
3071 qla2x00_post_async_work(login_done, QLA_EVT_ASYNC_LOGIN_DONE);
3072 qla2x00_post_async_work(logout, QLA_EVT_ASYNC_LOGOUT);
3073 qla2x00_post_async_work(logout_done, QLA_EVT_ASYNC_LOGOUT_DONE);
3074 qla2x00_post_async_work(adisc, QLA_EVT_ASYNC_ADISC);
3075 qla2x00_post_async_work(adisc_done, QLA_EVT_ASYNC_ADISC_DONE);
3076
3077 int
3078 qla2x00_post_uevent_work(struct scsi_qla_host *vha, u32 code)
3079 {
3080         struct qla_work_evt *e;
3081
3082         e = qla2x00_alloc_work(vha, QLA_EVT_UEVENT);
3083         if (!e)
3084                 return QLA_FUNCTION_FAILED;
3085
3086         e->u.uevent.code = code;
3087         return qla2x00_post_work(vha, e);
3088 }
3089
3090 static void
3091 qla2x00_uevent_emit(struct scsi_qla_host *vha, u32 code)
3092 {
3093         char event_string[40];
3094         char *envp[] = { event_string, NULL };
3095
3096         switch (code) {
3097         case QLA_UEVENT_CODE_FW_DUMP:
3098                 snprintf(event_string, sizeof(event_string), "FW_DUMP=%ld",
3099                     vha->host_no);
3100                 break;
3101         default:
3102                 /* do nothing */
3103                 break;
3104         }
3105         kobject_uevent_env(&vha->hw->pdev->dev.kobj, KOBJ_CHANGE, envp);
3106 }
3107
3108 void
3109 qla2x00_do_work(struct scsi_qla_host *vha)
3110 {
3111         struct qla_work_evt *e, *tmp;
3112         unsigned long flags;
3113         LIST_HEAD(work);
3114
3115         spin_lock_irqsave(&vha->work_lock, flags);
3116         list_splice_init(&vha->work_list, &work);
3117         spin_unlock_irqrestore(&vha->work_lock, flags);
3118
3119         list_for_each_entry_safe(e, tmp, &work, list) {
3120                 list_del_init(&e->list);
3121
3122                 switch (e->type) {
3123                 case QLA_EVT_AEN:
3124                         fc_host_post_event(vha->host, fc_get_event_number(),
3125                             e->u.aen.code, e->u.aen.data);
3126                         break;
3127                 case QLA_EVT_IDC_ACK:
3128                         qla81xx_idc_ack(vha, e->u.idc_ack.mb);
3129                         break;
3130                 case QLA_EVT_ASYNC_LOGIN:
3131                         qla2x00_async_login(vha, e->u.logio.fcport,
3132                             e->u.logio.data);
3133                         break;
3134                 case QLA_EVT_ASYNC_LOGIN_DONE:
3135                         qla2x00_async_login_done(vha, e->u.logio.fcport,
3136                             e->u.logio.data);
3137                         break;
3138                 case QLA_EVT_ASYNC_LOGOUT:
3139                         qla2x00_async_logout(vha, e->u.logio.fcport);
3140                         break;
3141                 case QLA_EVT_ASYNC_LOGOUT_DONE:
3142                         qla2x00_async_logout_done(vha, e->u.logio.fcport,
3143                             e->u.logio.data);
3144                         break;
3145                 case QLA_EVT_ASYNC_ADISC:
3146                         qla2x00_async_adisc(vha, e->u.logio.fcport,
3147                             e->u.logio.data);
3148                         break;
3149                 case QLA_EVT_ASYNC_ADISC_DONE:
3150                         qla2x00_async_adisc_done(vha, e->u.logio.fcport,
3151                             e->u.logio.data);
3152                         break;
3153                 case QLA_EVT_UEVENT:
3154                         qla2x00_uevent_emit(vha, e->u.uevent.code);
3155                         break;
3156                 }
3157                 if (e->flags & QLA_EVT_FLAG_FREE)
3158                         kfree(e);
3159
3160                 /* For each work completed decrement vha ref count */
3161                 QLA_VHA_MARK_NOT_BUSY(vha);
3162         }
3163 }
3164
3165 /* Relogins all the fcports of a vport
3166  * Context: dpc thread
3167  */
3168 void qla2x00_relogin(struct scsi_qla_host *vha)
3169 {
3170         fc_port_t       *fcport;
3171         int status;
3172         uint16_t        next_loopid = 0;
3173         struct qla_hw_data *ha = vha->hw;
3174         uint16_t data[2];
3175
3176         list_for_each_entry(fcport, &vha->vp_fcports, list) {
3177         /*
3178          * If the port is not ONLINE then try to login
3179          * to it if we haven't run out of retries.
3180          */
3181                 if (atomic_read(&fcport->state) != FCS_ONLINE &&
3182                     fcport->login_retry && !(fcport->flags & FCF_ASYNC_SENT)) {
3183                         fcport->login_retry--;
3184                         if (fcport->flags & FCF_FABRIC_DEVICE) {
3185                                 if (fcport->flags & FCF_FCP2_DEVICE)
3186                                         ha->isp_ops->fabric_logout(vha,
3187                                                         fcport->loop_id,
3188                                                         fcport->d_id.b.domain,
3189                                                         fcport->d_id.b.area,
3190                                                         fcport->d_id.b.al_pa);
3191
3192                                 if (IS_ALOGIO_CAPABLE(ha)) {
3193                                         fcport->flags |= FCF_ASYNC_SENT;
3194                                         data[0] = 0;
3195                                         data[1] = QLA_LOGIO_LOGIN_RETRIED;
3196                                         status = qla2x00_post_async_login_work(
3197                                             vha, fcport, data);
3198                                         if (status == QLA_SUCCESS)
3199                                                 continue;
3200                                         /* Attempt a retry. */
3201                                         status = 1;
3202                                 } else
3203                                         status = qla2x00_fabric_login(vha,
3204                                             fcport, &next_loopid);
3205                         } else
3206                                 status = qla2x00_local_device_login(vha,
3207                                                                 fcport);
3208
3209                         if (status == QLA_SUCCESS) {
3210                                 fcport->old_loop_id = fcport->loop_id;
3211
3212                                 DEBUG(printk("scsi(%ld): port login OK: logged "
3213                                 "in ID 0x%x\n", vha->host_no, fcport->loop_id));
3214
3215                                 qla2x00_update_fcport(vha, fcport);
3216
3217                         } else if (status == 1) {
3218                                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
3219                                 /* retry the login again */
3220                                 DEBUG(printk("scsi(%ld): Retrying"
3221                                 " %d login again loop_id 0x%x\n",
3222                                 vha->host_no, fcport->login_retry,
3223                                                 fcport->loop_id));
3224                         } else {
3225                                 fcport->login_retry = 0;
3226                         }
3227
3228                         if (fcport->login_retry == 0 && status != QLA_SUCCESS)
3229                                 fcport->loop_id = FC_NO_LOOP_ID;
3230                 }
3231                 if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
3232                         break;
3233         }
3234 }
3235
3236 /**************************************************************************
3237 * qla2x00_do_dpc
3238 *   This kernel thread is a task that is schedule by the interrupt handler
3239 *   to perform the background processing for interrupts.
3240 *
3241 * Notes:
3242 * This task always run in the context of a kernel thread.  It
3243 * is kick-off by the driver's detect code and starts up
3244 * up one per adapter. It immediately goes to sleep and waits for
3245 * some fibre event.  When either the interrupt handler or
3246 * the timer routine detects a event it will one of the task
3247 * bits then wake us up.
3248 **************************************************************************/
3249 static int
3250 qla2x00_do_dpc(void *data)
3251 {
3252         int             rval;
3253         scsi_qla_host_t *base_vha;
3254         struct qla_hw_data *ha;
3255
3256         ha = (struct qla_hw_data *)data;
3257         base_vha = pci_get_drvdata(ha->pdev);
3258
3259         set_user_nice(current, -20);
3260
3261         while (!kthread_should_stop()) {
3262                 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
3263
3264                 set_current_state(TASK_INTERRUPTIBLE);
3265                 schedule();
3266                 __set_current_state(TASK_RUNNING);
3267
3268                 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
3269
3270                 /* Initialization not yet finished. Don't do anything yet. */
3271                 if (!base_vha->flags.init_done)
3272                         continue;
3273
3274                 if (ha->flags.eeh_busy) {
3275                         DEBUG17(qla_printk(KERN_WARNING, ha,
3276                             "qla2x00_do_dpc: dpc_flags: %lx\n",
3277                             base_vha->dpc_flags));
3278                         continue;
3279                 }
3280
3281                 DEBUG3(printk("scsi(%ld): DPC handler\n", base_vha->host_no));
3282
3283                 ha->dpc_active = 1;
3284
3285                 if (ha->flags.mbox_busy) {
3286                         ha->dpc_active = 0;
3287                         continue;
3288                 }
3289
3290                 qla2x00_do_work(base_vha);
3291
3292                 if (IS_QLA82XX(ha)) {
3293                         if (test_and_clear_bit(ISP_UNRECOVERABLE,
3294                                 &base_vha->dpc_flags)) {
3295                                 qla82xx_idc_lock(ha);
3296                                 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3297                                         QLA82XX_DEV_FAILED);
3298                                 qla82xx_idc_unlock(ha);
3299                                 qla_printk(KERN_INFO, ha,
3300                                         "HW State: FAILED\n");
3301                                 qla82xx_device_state_handler(base_vha);
3302                                 continue;
3303                         }
3304
3305                         if (test_and_clear_bit(FCOE_CTX_RESET_NEEDED,
3306                                 &base_vha->dpc_flags)) {
3307
3308                                 DEBUG(printk(KERN_INFO
3309                                         "scsi(%ld): dpc: sched "
3310                                         "qla82xx_fcoe_ctx_reset ha = %p\n",
3311                                         base_vha->host_no, ha));
3312                                 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
3313                                         &base_vha->dpc_flags))) {
3314                                         if (qla82xx_fcoe_ctx_reset(base_vha)) {
3315                                                 /* FCoE-ctx reset failed.
3316                                                  * Escalate to chip-reset
3317                                                  */
3318                                                 set_bit(ISP_ABORT_NEEDED,
3319                                                         &base_vha->dpc_flags);
3320                                         }
3321                                         clear_bit(ABORT_ISP_ACTIVE,
3322                                                 &base_vha->dpc_flags);
3323                                 }
3324
3325                                 DEBUG(printk("scsi(%ld): dpc:"
3326                                         " qla82xx_fcoe_ctx_reset end\n",
3327                                         base_vha->host_no));
3328                         }
3329                 }
3330
3331                 if (test_and_clear_bit(ISP_ABORT_NEEDED,
3332                                                 &base_vha->dpc_flags)) {
3333
3334                         DEBUG(printk("scsi(%ld): dpc: sched "
3335                             "qla2x00_abort_isp ha = %p\n",
3336                             base_vha->host_no, ha));
3337                         if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
3338                             &base_vha->dpc_flags))) {
3339
3340                                 if (ha->isp_ops->abort_isp(base_vha)) {
3341                                         /* failed. retry later */
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: qla2x00_abort_isp end\n",
3350                             base_vha->host_no));
3351                 }
3352
3353                 if (test_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags)) {
3354                         qla2x00_update_fcports(base_vha);
3355                         clear_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
3356                 }
3357
3358                 if (test_and_clear_bit(RESET_MARKER_NEEDED,
3359                                                         &base_vha->dpc_flags) &&
3360                     (!(test_and_set_bit(RESET_ACTIVE, &base_vha->dpc_flags)))) {
3361
3362                         DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
3363                             base_vha->host_no));
3364
3365                         qla2x00_rst_aen(base_vha);
3366                         clear_bit(RESET_ACTIVE, &base_vha->dpc_flags);
3367                 }
3368
3369                 /* Retry each device up to login retry count */
3370                 if ((test_and_clear_bit(RELOGIN_NEEDED,
3371                                                 &base_vha->dpc_flags)) &&
3372                     !test_bit(LOOP_RESYNC_NEEDED, &base_vha->dpc_flags) &&
3373                     atomic_read(&base_vha->loop_state) != LOOP_DOWN) {
3374
3375                         DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
3376                                         base_vha->host_no));
3377                         qla2x00_relogin(base_vha);
3378
3379                         DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
3380                             base_vha->host_no));
3381                 }
3382
3383                 if (test_and_clear_bit(LOOP_RESYNC_NEEDED,
3384                                                         &base_vha->dpc_flags)) {
3385
3386                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
3387                                 base_vha->host_no));
3388
3389                         if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
3390                             &base_vha->dpc_flags))) {
3391
3392                                 rval = qla2x00_loop_resync(base_vha);
3393
3394                                 clear_bit(LOOP_RESYNC_ACTIVE,
3395                                                 &base_vha->dpc_flags);
3396                         }
3397
3398                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
3399                             base_vha->host_no));
3400                 }
3401
3402                 if (test_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags) &&
3403                     atomic_read(&base_vha->loop_state) == LOOP_READY) {
3404                         clear_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags);
3405                         qla2xxx_flash_npiv_conf(base_vha);
3406                 }
3407
3408                 if (!ha->interrupts_on)
3409                         ha->isp_ops->enable_intrs(ha);
3410
3411                 if (test_and_clear_bit(BEACON_BLINK_NEEDED,
3412                                         &base_vha->dpc_flags))
3413                         ha->isp_ops->beacon_blink(base_vha);
3414
3415                 qla2x00_do_dpc_all_vps(base_vha);
3416
3417                 ha->dpc_active = 0;
3418         } /* End of while(1) */
3419
3420         DEBUG(printk("scsi(%ld): DPC handler exiting\n", base_vha->host_no));
3421
3422         /*
3423          * Make sure that nobody tries to wake us up again.
3424          */
3425         ha->dpc_active = 0;
3426
3427         /* Cleanup any residual CTX SRBs. */
3428         qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
3429
3430         return 0;
3431 }
3432
3433 void
3434 qla2xxx_wake_dpc(struct scsi_qla_host *vha)
3435 {
3436         struct qla_hw_data *ha = vha->hw;
3437         struct task_struct *t = ha->dpc_thread;
3438
3439         if (!test_bit(UNLOADING, &vha->dpc_flags) && t)
3440                 wake_up_process(t);
3441 }
3442
3443 /*
3444 *  qla2x00_rst_aen
3445 *      Processes asynchronous reset.
3446 *
3447 * Input:
3448 *      ha  = adapter block pointer.
3449 */
3450 static void
3451 qla2x00_rst_aen(scsi_qla_host_t *vha)
3452 {
3453         if (vha->flags.online && !vha->flags.reset_active &&
3454             !atomic_read(&vha->loop_down_timer) &&
3455             !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) {
3456                 do {
3457                         clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
3458
3459                         /*
3460                          * Issue marker command only when we are going to start
3461                          * the I/O.
3462                          */
3463                         vha->marker_needed = 1;
3464                 } while (!atomic_read(&vha->loop_down_timer) &&
3465                     (test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags)));
3466         }
3467 }
3468
3469 static void
3470 qla2x00_sp_free_dma(srb_t *sp)
3471 {
3472         struct scsi_cmnd *cmd = sp->cmd;
3473         struct qla_hw_data *ha = sp->fcport->vha->hw;
3474
3475         if (sp->flags & SRB_DMA_VALID) {
3476                 scsi_dma_unmap(cmd);
3477                 sp->flags &= ~SRB_DMA_VALID;
3478         }
3479
3480         if (sp->flags & SRB_CRC_PROT_DMA_VALID) {
3481                 dma_unmap_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
3482                     scsi_prot_sg_count(cmd), cmd->sc_data_direction);
3483                 sp->flags &= ~SRB_CRC_PROT_DMA_VALID;
3484         }
3485
3486         if (sp->flags & SRB_CRC_CTX_DSD_VALID) {
3487                 /* List assured to be having elements */
3488                 qla2x00_clean_dsd_pool(ha, sp);
3489                 sp->flags &= ~SRB_CRC_CTX_DSD_VALID;
3490         }
3491
3492         if (sp->flags & SRB_CRC_CTX_DMA_VALID) {
3493                 dma_pool_free(ha->dl_dma_pool, sp->ctx,
3494                     ((struct crc_context *)sp->ctx)->crc_ctx_dma);
3495                 sp->flags &= ~SRB_CRC_CTX_DMA_VALID;
3496         }
3497
3498         CMD_SP(cmd) = NULL;
3499 }
3500
3501 static void
3502 qla2x00_sp_final_compl(struct qla_hw_data *ha, srb_t *sp)
3503 {
3504         struct scsi_cmnd *cmd = sp->cmd;
3505
3506         qla2x00_sp_free_dma(sp);
3507
3508         if (sp->flags & SRB_FCP_CMND_DMA_VALID) {
3509                 struct ct6_dsd *ctx = sp->ctx;
3510                 dma_pool_free(ha->fcp_cmnd_dma_pool, ctx->fcp_cmnd,
3511                         ctx->fcp_cmnd_dma);
3512                 list_splice(&ctx->dsd_list, &ha->gbl_dsd_list);
3513                 ha->gbl_dsd_inuse -= ctx->dsd_use_cnt;
3514                 ha->gbl_dsd_avail += ctx->dsd_use_cnt;
3515                 mempool_free(sp->ctx, ha->ctx_mempool);
3516                 sp->ctx = NULL;
3517         }
3518
3519         mempool_free(sp, ha->srb_mempool);
3520         cmd->scsi_done(cmd);
3521 }
3522
3523 void
3524 qla2x00_sp_compl(struct qla_hw_data *ha, srb_t *sp)
3525 {
3526         if (atomic_read(&sp->ref_count) == 0) {
3527                 DEBUG2(qla_printk(KERN_WARNING, ha,
3528                     "SP reference-count to ZERO -- sp=%p\n", sp));
3529                 DEBUG2(BUG());
3530                 return;
3531         }
3532         if (!atomic_dec_and_test(&sp->ref_count))
3533                 return;
3534         qla2x00_sp_final_compl(ha, sp);
3535 }
3536
3537 /**************************************************************************
3538 *   qla2x00_timer
3539 *
3540 * Description:
3541 *   One second timer
3542 *
3543 * Context: Interrupt
3544 ***************************************************************************/
3545 void
3546 qla2x00_timer(scsi_qla_host_t *vha)
3547 {
3548         unsigned long   cpu_flags = 0;
3549         int             start_dpc = 0;
3550         int             index;
3551         srb_t           *sp;
3552         uint16_t        w;
3553         struct qla_hw_data *ha = vha->hw;
3554         struct req_que *req;
3555
3556         if (ha->flags.eeh_busy) {
3557                 qla2x00_restart_timer(vha, WATCH_INTERVAL);
3558                 return;
3559         }
3560
3561         if (IS_QLA82XX(ha))
3562                 qla82xx_watchdog(vha);
3563
3564         /* Hardware read to raise pending EEH errors during mailbox waits. */
3565         if (!pci_channel_offline(ha->pdev))
3566                 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
3567
3568         /* Loop down handler. */
3569         if (atomic_read(&vha->loop_down_timer) > 0 &&
3570             !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
3571                 && vha->flags.online) {
3572
3573                 if (atomic_read(&vha->loop_down_timer) ==
3574                     vha->loop_down_abort_time) {
3575
3576                         DEBUG(printk("scsi(%ld): Loop Down - aborting the "
3577                             "queues before time expire\n",
3578                             vha->host_no));
3579
3580                         if (!IS_QLA2100(ha) && vha->link_down_timeout)
3581                                 atomic_set(&vha->loop_state, LOOP_DEAD);
3582
3583                         /*
3584                          * Schedule an ISP abort to return any FCP2-device
3585                          * commands.
3586                          */
3587                         /* NPIV - scan physical port only */
3588                         if (!vha->vp_idx) {
3589                                 spin_lock_irqsave(&ha->hardware_lock,
3590                                     cpu_flags);
3591                                 req = ha->req_q_map[0];
3592                                 for (index = 1;
3593                                     index < MAX_OUTSTANDING_COMMANDS;
3594                                     index++) {
3595                                         fc_port_t *sfcp;
3596
3597                                         sp = req->outstanding_cmds[index];
3598                                         if (!sp)
3599                                                 continue;
3600                                         if (sp->ctx && !IS_PROT_IO(sp))
3601                                                 continue;
3602                                         sfcp = sp->fcport;
3603                                         if (!(sfcp->flags & FCF_FCP2_DEVICE))
3604                                                 continue;
3605
3606                                         set_bit(ISP_ABORT_NEEDED,
3607                                                         &vha->dpc_flags);
3608                                         break;
3609                                 }
3610                                 spin_unlock_irqrestore(&ha->hardware_lock,
3611                                                                 cpu_flags);
3612                         }
3613                         start_dpc++;
3614                 }
3615
3616                 /* if the loop has been down for 4 minutes, reinit adapter */
3617                 if (atomic_dec_and_test(&vha->loop_down_timer) != 0) {
3618                         if (!(vha->device_flags & DFLG_NO_CABLE)) {
3619                                 DEBUG(printk("scsi(%ld): Loop down - "
3620                                     "aborting ISP.\n",
3621                                     vha->host_no));
3622                                 qla_printk(KERN_WARNING, ha,
3623                                     "Loop down - aborting ISP.\n");
3624
3625                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3626                         }
3627                 }
3628                 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
3629                     vha->host_no,
3630                     atomic_read(&vha->loop_down_timer)));
3631         }
3632
3633         /* Check if beacon LED needs to be blinked */
3634         if (ha->beacon_blink_led == 1) {
3635                 set_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags);
3636                 start_dpc++;
3637         }
3638
3639         /* Process any deferred work. */
3640         if (!list_empty(&vha->work_list))
3641                 start_dpc++;
3642
3643         /* Schedule the DPC routine if needed */
3644         if ((test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
3645             test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) ||
3646             test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags) ||
3647             start_dpc ||
3648             test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) ||
3649             test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags) ||
3650             test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags) ||
3651             test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) ||
3652             test_bit(VP_DPC_NEEDED, &vha->dpc_flags) ||
3653             test_bit(RELOGIN_NEEDED, &vha->dpc_flags)))
3654                 qla2xxx_wake_dpc(vha);
3655
3656         qla2x00_restart_timer(vha, WATCH_INTERVAL);
3657 }
3658
3659 /* Firmware interface routines. */
3660
3661 #define FW_BLOBS        8
3662 #define FW_ISP21XX      0
3663 #define FW_ISP22XX      1
3664 #define FW_ISP2300      2
3665 #define FW_ISP2322      3
3666 #define FW_ISP24XX      4
3667 #define FW_ISP25XX      5
3668 #define FW_ISP81XX      6
3669 #define FW_ISP82XX      7
3670
3671 #define FW_FILE_ISP21XX "ql2100_fw.bin"
3672 #define FW_FILE_ISP22XX "ql2200_fw.bin"
3673 #define FW_FILE_ISP2300 "ql2300_fw.bin"
3674 #define FW_FILE_ISP2322 "ql2322_fw.bin"
3675 #define FW_FILE_ISP24XX "ql2400_fw.bin"
3676 #define FW_FILE_ISP25XX "ql2500_fw.bin"
3677 #define FW_FILE_ISP81XX "ql8100_fw.bin"
3678 #define FW_FILE_ISP82XX "ql8200_fw.bin"
3679
3680 static DEFINE_MUTEX(qla_fw_lock);
3681
3682 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
3683         { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
3684         { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
3685         { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
3686         { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
3687         { .name = FW_FILE_ISP24XX, },
3688         { .name = FW_FILE_ISP25XX, },
3689         { .name = FW_FILE_ISP81XX, },
3690         { .name = FW_FILE_ISP82XX, },
3691 };
3692
3693 struct fw_blob *
3694 qla2x00_request_firmware(scsi_qla_host_t *vha)
3695 {
3696         struct qla_hw_data *ha = vha->hw;
3697         struct fw_blob *blob;
3698
3699         blob = NULL;
3700         if (IS_QLA2100(ha)) {
3701                 blob = &qla_fw_blobs[FW_ISP21XX];
3702         } else if (IS_QLA2200(ha)) {
3703                 blob = &qla_fw_blobs[FW_ISP22XX];
3704         } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
3705                 blob = &qla_fw_blobs[FW_ISP2300];
3706         } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
3707                 blob = &qla_fw_blobs[FW_ISP2322];
3708         } else if (IS_QLA24XX_TYPE(ha)) {
3709                 blob = &qla_fw_blobs[FW_ISP24XX];
3710         } else if (IS_QLA25XX(ha)) {
3711                 blob = &qla_fw_blobs[FW_ISP25XX];
3712         } else if (IS_QLA81XX(ha)) {
3713                 blob = &qla_fw_blobs[FW_ISP81XX];
3714         } else if (IS_QLA82XX(ha)) {
3715                 blob = &qla_fw_blobs[FW_ISP82XX];
3716         }
3717
3718         mutex_lock(&qla_fw_lock);
3719         if (blob->fw)
3720                 goto out;
3721
3722         if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
3723                 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
3724                     "(%s).\n", vha->host_no, blob->name));
3725                 blob->fw = NULL;
3726                 blob = NULL;
3727                 goto out;
3728         }
3729
3730 out:
3731         mutex_unlock(&qla_fw_lock);
3732         return blob;
3733 }
3734
3735 static void
3736 qla2x00_release_firmware(void)
3737 {
3738         int idx;
3739
3740         mutex_lock(&qla_fw_lock);
3741         for (idx = 0; idx < FW_BLOBS; idx++)
3742                 if (qla_fw_blobs[idx].fw)
3743                         release_firmware(qla_fw_blobs[idx].fw);
3744         mutex_unlock(&qla_fw_lock);
3745 }
3746
3747 static pci_ers_result_t
3748 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
3749 {
3750         scsi_qla_host_t *vha = pci_get_drvdata(pdev);
3751         struct qla_hw_data *ha = vha->hw;
3752
3753         DEBUG2(qla_printk(KERN_WARNING, ha, "error_detected:state %x\n",
3754             state));
3755
3756         switch (state) {
3757         case pci_channel_io_normal:
3758                 ha->flags.eeh_busy = 0;
3759                 return PCI_ERS_RESULT_CAN_RECOVER;
3760         case pci_channel_io_frozen:
3761                 ha->flags.eeh_busy = 1;
3762                 /* For ISP82XX complete any pending mailbox cmd */
3763                 if (IS_QLA82XX(ha)) {
3764                         ha->flags.fw_hung = 1;
3765                         if (ha->flags.mbox_busy) {
3766                                 ha->flags.mbox_int = 1;
3767                                 DEBUG2(qla_printk(KERN_ERR, ha,
3768                                         "Due to pci channel io frozen, doing premature "
3769                                         "completion of mbx command\n"));
3770                                 complete(&ha->mbx_intr_comp);
3771                         }
3772                 }
3773                 qla2x00_free_irqs(vha);
3774                 pci_disable_device(pdev);
3775                 /* Return back all IOs */
3776                 qla2x00_abort_all_cmds(vha, DID_RESET << 16);
3777                 return PCI_ERS_RESULT_NEED_RESET;
3778         case pci_channel_io_perm_failure:
3779                 ha->flags.pci_channel_io_perm_failure = 1;
3780                 qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
3781                 return PCI_ERS_RESULT_DISCONNECT;
3782         }
3783         return PCI_ERS_RESULT_NEED_RESET;
3784 }
3785
3786 static pci_ers_result_t
3787 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
3788 {
3789         int risc_paused = 0;
3790         uint32_t stat;
3791         unsigned long flags;
3792         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3793         struct qla_hw_data *ha = base_vha->hw;
3794         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3795         struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
3796
3797         if (IS_QLA82XX(ha))
3798                 return PCI_ERS_RESULT_RECOVERED;
3799
3800         spin_lock_irqsave(&ha->hardware_lock, flags);
3801         if (IS_QLA2100(ha) || IS_QLA2200(ha)){
3802                 stat = RD_REG_DWORD(&reg->hccr);
3803                 if (stat & HCCR_RISC_PAUSE)
3804                         risc_paused = 1;
3805         } else if (IS_QLA23XX(ha)) {
3806                 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
3807                 if (stat & HSR_RISC_PAUSED)
3808                         risc_paused = 1;
3809         } else if (IS_FWI2_CAPABLE(ha)) {
3810                 stat = RD_REG_DWORD(&reg24->host_status);
3811                 if (stat & HSRX_RISC_PAUSED)
3812                         risc_paused = 1;
3813         }
3814         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3815
3816         if (risc_paused) {
3817                 qla_printk(KERN_INFO, ha, "RISC paused -- mmio_enabled, "
3818                     "Dumping firmware!\n");
3819                 ha->isp_ops->fw_dump(base_vha, 0);
3820
3821                 return PCI_ERS_RESULT_NEED_RESET;
3822         } else
3823                 return PCI_ERS_RESULT_RECOVERED;
3824 }
3825
3826 uint32_t qla82xx_error_recovery(scsi_qla_host_t *base_vha)
3827 {
3828         uint32_t rval = QLA_FUNCTION_FAILED;
3829         uint32_t drv_active = 0;
3830         struct qla_hw_data *ha = base_vha->hw;
3831         int fn;
3832         struct pci_dev *other_pdev = NULL;
3833
3834         DEBUG17(qla_printk(KERN_INFO, ha,
3835             "scsi(%ld): In qla82xx_error_recovery\n", base_vha->host_no));
3836
3837         set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
3838
3839         if (base_vha->flags.online) {
3840                 /* Abort all outstanding commands,
3841                  * so as to be requeued later */
3842                 qla2x00_abort_isp_cleanup(base_vha);
3843         }
3844
3845
3846         fn = PCI_FUNC(ha->pdev->devfn);
3847         while (fn > 0) {
3848                 fn--;
3849                 DEBUG17(qla_printk(KERN_INFO, ha,
3850                     "Finding pci device at function = 0x%x\n", fn));
3851                 other_pdev =
3852                     pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus),
3853                     ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
3854                     fn));
3855
3856                 if (!other_pdev)
3857                         continue;
3858                 if (atomic_read(&other_pdev->enable_cnt)) {
3859                         DEBUG17(qla_printk(KERN_INFO, ha,
3860                             "Found PCI func availabe and enabled at 0x%x\n",
3861                             fn));
3862                         pci_dev_put(other_pdev);
3863                         break;
3864                 }
3865                 pci_dev_put(other_pdev);
3866         }
3867
3868         if (!fn) {
3869                 /* Reset owner */
3870                 DEBUG17(qla_printk(KERN_INFO, ha,
3871                     "This devfn is reset owner = 0x%x\n", ha->pdev->devfn));
3872                 qla82xx_idc_lock(ha);
3873
3874                 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3875                     QLA82XX_DEV_INITIALIZING);
3876
3877                 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION,
3878                     QLA82XX_IDC_VERSION);
3879
3880                 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3881                 DEBUG17(qla_printk(KERN_INFO, ha,
3882                     "drv_active = 0x%x\n", drv_active));
3883
3884                 qla82xx_idc_unlock(ha);
3885                 /* Reset if device is not already reset
3886                  * drv_active would be 0 if a reset has already been done
3887                  */
3888                 if (drv_active)
3889                         rval = qla82xx_start_firmware(base_vha);
3890                 else
3891                         rval = QLA_SUCCESS;
3892                 qla82xx_idc_lock(ha);
3893
3894                 if (rval != QLA_SUCCESS) {
3895                         qla_printk(KERN_INFO, ha, "HW State: FAILED\n");
3896                         qla82xx_clear_drv_active(ha);
3897                         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3898                             QLA82XX_DEV_FAILED);
3899                 } else {
3900                         qla_printk(KERN_INFO, ha, "HW State: READY\n");
3901                         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3902                             QLA82XX_DEV_READY);
3903                         qla82xx_idc_unlock(ha);
3904                         ha->flags.fw_hung = 0;
3905                         rval = qla82xx_restart_isp(base_vha);
3906                         qla82xx_idc_lock(ha);
3907                         /* Clear driver state register */
3908                         qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, 0);
3909                         qla82xx_set_drv_active(base_vha);
3910                 }
3911                 qla82xx_idc_unlock(ha);
3912         } else {
3913                 DEBUG17(qla_printk(KERN_INFO, ha,
3914                     "This devfn is not reset owner = 0x%x\n", ha->pdev->devfn));
3915                 if ((qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE) ==
3916                     QLA82XX_DEV_READY)) {
3917                         ha->flags.fw_hung = 0;
3918                         rval = qla82xx_restart_isp(base_vha);
3919                         qla82xx_idc_lock(ha);
3920                         qla82xx_set_drv_active(base_vha);
3921                         qla82xx_idc_unlock(ha);
3922                 }
3923         }
3924         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
3925
3926         return rval;
3927 }
3928
3929 static pci_ers_result_t
3930 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
3931 {
3932         pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
3933         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3934         struct qla_hw_data *ha = base_vha->hw;
3935         struct rsp_que *rsp;
3936         int rc, retries = 10;
3937
3938         DEBUG17(qla_printk(KERN_WARNING, ha, "slot_reset\n"));
3939
3940         /* Workaround: qla2xxx driver which access hardware earlier
3941          * needs error state to be pci_channel_io_online.
3942          * Otherwise mailbox command timesout.
3943          */
3944         pdev->error_state = pci_channel_io_normal;
3945
3946         pci_restore_state(pdev);
3947
3948         /* pci_restore_state() clears the saved_state flag of the device
3949          * save restored state which resets saved_state flag
3950          */
3951         pci_save_state(pdev);
3952
3953         if (ha->mem_only)
3954                 rc = pci_enable_device_mem(pdev);
3955         else
3956                 rc = pci_enable_device(pdev);
3957
3958         if (rc) {
3959                 qla_printk(KERN_WARNING, ha,
3960                     "Can't re-enable PCI device after reset.\n");
3961                 goto exit_slot_reset;
3962         }
3963
3964         rsp = ha->rsp_q_map[0];
3965         if (qla2x00_request_irqs(ha, rsp))
3966                 goto exit_slot_reset;
3967
3968         if (ha->isp_ops->pci_config(base_vha))
3969                 goto exit_slot_reset;
3970
3971         if (IS_QLA82XX(ha)) {
3972                 if (qla82xx_error_recovery(base_vha) == QLA_SUCCESS) {
3973                         ret = PCI_ERS_RESULT_RECOVERED;
3974                         goto exit_slot_reset;
3975                 } else
3976                         goto exit_slot_reset;
3977         }
3978
3979         while (ha->flags.mbox_busy && retries--)
3980                 msleep(1000);
3981
3982         set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
3983         if (ha->isp_ops->abort_isp(base_vha) == QLA_SUCCESS)
3984                 ret =  PCI_ERS_RESULT_RECOVERED;
3985         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
3986
3987
3988 exit_slot_reset:
3989         DEBUG17(qla_printk(KERN_WARNING, ha,
3990             "slot_reset-return:ret=%x\n", ret));
3991
3992         return ret;
3993 }
3994
3995 static void
3996 qla2xxx_pci_resume(struct pci_dev *pdev)
3997 {
3998         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3999         struct qla_hw_data *ha = base_vha->hw;
4000         int ret;
4001
4002         DEBUG17(qla_printk(KERN_WARNING, ha, "pci_resume\n"));
4003
4004         ret = qla2x00_wait_for_hba_online(base_vha);
4005         if (ret != QLA_SUCCESS) {
4006                 qla_printk(KERN_ERR, ha,
4007                     "the device failed to resume I/O "
4008                     "from slot/link_reset");
4009         }
4010
4011         pci_cleanup_aer_uncorrect_error_status(pdev);
4012
4013         ha->flags.eeh_busy = 0;
4014 }
4015
4016 static struct pci_error_handlers qla2xxx_err_handler = {
4017         .error_detected = qla2xxx_pci_error_detected,
4018         .mmio_enabled = qla2xxx_pci_mmio_enabled,
4019         .slot_reset = qla2xxx_pci_slot_reset,
4020         .resume = qla2xxx_pci_resume,
4021 };
4022
4023 static struct pci_device_id qla2xxx_pci_tbl[] = {
4024         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
4025         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
4026         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
4027         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
4028         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
4029         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
4030         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
4031         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
4032         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
4033         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) },
4034         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
4035         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
4036         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
4037         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8001) },
4038         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8021) },
4039         { 0 },
4040 };
4041 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
4042
4043 static struct pci_driver qla2xxx_pci_driver = {
4044         .name           = QLA2XXX_DRIVER_NAME,
4045         .driver         = {
4046                 .owner          = THIS_MODULE,
4047         },
4048         .id_table       = qla2xxx_pci_tbl,
4049         .probe          = qla2x00_probe_one,
4050         .remove         = qla2x00_remove_one,
4051         .err_handler    = &qla2xxx_err_handler,
4052 };
4053
4054 static struct file_operations apidev_fops = {
4055         .owner = THIS_MODULE,
4056         .llseek = noop_llseek,
4057 };
4058
4059 /**
4060  * qla2x00_module_init - Module initialization.
4061  **/
4062 static int __init
4063 qla2x00_module_init(void)
4064 {
4065         int ret = 0;
4066
4067         /* Allocate cache for SRBs. */
4068         srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
4069             SLAB_HWCACHE_ALIGN, NULL);
4070         if (srb_cachep == NULL) {
4071                 printk(KERN_ERR
4072                     "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
4073                 return -ENOMEM;
4074         }
4075
4076         /* Derive version string. */
4077         strcpy(qla2x00_version_str, QLA2XXX_VERSION);
4078         if (ql2xextended_error_logging)
4079                 strcat(qla2x00_version_str, "-debug");
4080
4081         qla2xxx_transport_template =
4082             fc_attach_transport(&qla2xxx_transport_functions);
4083         if (!qla2xxx_transport_template) {
4084                 kmem_cache_destroy(srb_cachep);
4085                 return -ENODEV;
4086         }
4087
4088         apidev_major = register_chrdev(0, QLA2XXX_APIDEV, &apidev_fops);
4089         if (apidev_major < 0) {
4090                 printk(KERN_WARNING "qla2xxx: Unable to register char device "
4091                     "%s\n", QLA2XXX_APIDEV);
4092         }
4093
4094         qla2xxx_transport_vport_template =
4095             fc_attach_transport(&qla2xxx_transport_vport_functions);
4096         if (!qla2xxx_transport_vport_template) {
4097                 kmem_cache_destroy(srb_cachep);
4098                 fc_release_transport(qla2xxx_transport_template);
4099                 return -ENODEV;
4100         }
4101
4102         printk(KERN_INFO "QLogic Fibre Channel HBA Driver: %s\n",
4103             qla2x00_version_str);
4104         ret = pci_register_driver(&qla2xxx_pci_driver);
4105         if (ret) {
4106                 kmem_cache_destroy(srb_cachep);
4107                 fc_release_transport(qla2xxx_transport_template);
4108                 fc_release_transport(qla2xxx_transport_vport_template);
4109         }
4110         return ret;
4111 }
4112
4113 /**
4114  * qla2x00_module_exit - Module cleanup.
4115  **/
4116 static void __exit
4117 qla2x00_module_exit(void)
4118 {
4119         unregister_chrdev(apidev_major, QLA2XXX_APIDEV);
4120         pci_unregister_driver(&qla2xxx_pci_driver);
4121         qla2x00_release_firmware();
4122         kmem_cache_destroy(srb_cachep);
4123         if (ctx_cachep)
4124                 kmem_cache_destroy(ctx_cachep);
4125         fc_release_transport(qla2xxx_transport_template);
4126         fc_release_transport(qla2xxx_transport_vport_template);
4127 }
4128
4129 module_init(qla2x00_module_init);
4130 module_exit(qla2x00_module_exit);
4131
4132 MODULE_AUTHOR("QLogic Corporation");
4133 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
4134 MODULE_LICENSE("GPL");
4135 MODULE_VERSION(QLA2XXX_VERSION);
4136 MODULE_FIRMWARE(FW_FILE_ISP21XX);
4137 MODULE_FIRMWARE(FW_FILE_ISP22XX);
4138 MODULE_FIRMWARE(FW_FILE_ISP2300);
4139 MODULE_FIRMWARE(FW_FILE_ISP2322);
4140 MODULE_FIRMWARE(FW_FILE_ISP24XX);
4141 MODULE_FIRMWARE(FW_FILE_ISP25XX);