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