drivers/scsi/qla2xxx/qla_os.c

   1 /*
   2  * QLogic Fibre Channel HBA Driver
   3  * Copyright (c)  2003-2010 QLogic Corporation
   4  *
   5  * See LICENSE.qla2xxx for copyright and licensing details.
   6  */
   7 #include "qla_def.h"
   8
   9 #include <linux/moduleparam.h>
  10 #include <linux/vmalloc.h>
  11 #include <linux/delay.h>
  12 #include <linux/kthread.h>
  13 #include <linux/mutex.h>
  14 #include <linux/kobject.h>
  15 #include <linux/slab.h>
  16
  17 #include <scsi/scsi_tcq.h>
  18 #include <scsi/scsicam.h>
  19 #include <scsi/scsi_transport.h>
  20 #include <scsi/scsi_transport_fc.h>
  21
  22 /*
  23  * Driver version
  24  */
  25 char qla2x00_version_str[40];
  26
  27 static int apidev_major;
  28
  29 /*
  30  * SRB allocation cache
  31  */
  32 static struct kmem_cache *srb_cachep;
  33
  34 /*
  35  * CT6 CTX allocation cache
  36  */
  37 static struct kmem_cache *ctx_cachep;
  38
  39 int ql2xlogintimeout = 20;
  40 module_param(ql2xlogintimeout, int, S_IRUGO);
  41 MODULE_PARM_DESC(ql2xlogintimeout,
  42                 "Login timeout value in seconds.");
  43
  44 int qlport_down_retry;
  45 module_param(qlport_down_retry, int, S_IRUGO);
  46 MODULE_PARM_DESC(qlport_down_retry,
  47                 "Maximum number of command retries to a port that returns "
  48                 "a PORT-DOWN status.");
  49
  50 int ql2xplogiabsentdevice;
  51 module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
  52 MODULE_PARM_DESC(ql2xplogiabsentdevice,
  53                 "Option to enable PLOGI to devices that are not present after "
  54                 "a Fabric scan.  This is needed for several broken switches. "
  55                 "Default is 0 - no PLOGI. 1 - perfom PLOGI.");
  56
  57 int ql2xloginretrycount = 0;
  58 module_param(ql2xloginretrycount, int, S_IRUGO);
  59 MODULE_PARM_DESC(ql2xloginretrycount,
  60                 "Specify an alternate value for the NVRAM login retry count.");
  61
  62 int ql2xallocfwdump = 1;
  63 module_param(ql2xallocfwdump, int, S_IRUGO);
  64 MODULE_PARM_DESC(ql2xallocfwdump,
  65                 "Option to enable allocation of memory for a firmware dump "
  66                 "during HBA initialization.  Memory allocation requirements "
  67                 "vary by ISP type.  Default is 1 - allocate memory.");
  68
  69 int ql2xextended_error_logging;
  70 module_param(ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
  71 MODULE_PARM_DESC(ql2xextended_error_logging,
  72                 "Option to enable extended error logging, "
  73                 "Default is 0 - no logging. 1 - log errors.");
  74
  75 int ql2xshiftctondsd = 6;
  76 module_param(ql2xshiftctondsd, int, S_IRUGO);
  77 MODULE_PARM_DESC(ql2xshiftctondsd,
  78                 "Set to control shifting of command type processing "
  79                 "based on total number of SG elements.");
  80
  81 static void qla2x00_free_device(scsi_qla_host_t *);
  82
  83 int ql2xfdmienable=1;
  84 module_param(ql2xfdmienable, int, S_IRUGO);
  85 MODULE_PARM_DESC(ql2xfdmienable,
  86                 "Enables FDMI registrations. "
  87                 "0 - no FDMI. Default is 1 - perform FDMI.");
  88
  89 #define MAX_Q_DEPTH    32
  90 static int ql2xmaxqdepth = MAX_Q_DEPTH;
  91 module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
  92 MODULE_PARM_DESC(ql2xmaxqdepth,
  93                 "Maximum queue depth to report for target devices.");
  94
  95 /* Do not change the value of this after module load */
  96 int ql2xenabledif = 1;
  97 module_param(ql2xenabledif, int, S_IRUGO|S_IWUSR);
  98 MODULE_PARM_DESC(ql2xenabledif,
  99                 " Enable T10-CRC-DIF "
 100                 " Default is 0 - No DIF Support. 1 - Enable it");
 101
 102 int ql2xenablehba_err_chk;
 103 module_param(ql2xenablehba_err_chk, int, S_IRUGO|S_IWUSR);
 104 MODULE_PARM_DESC(ql2xenablehba_err_chk,
 105                 " Enable T10-CRC-DIF Error isolation by HBA"
 106                 " Default is 0 - Error isolation disabled, 1 - Enable it");
 107
 108 int ql2xiidmaenable=1;
 109 module_param(ql2xiidmaenable, int, S_IRUGO);
 110 MODULE_PARM_DESC(ql2xiidmaenable,
 111                 "Enables iIDMA settings "
 112                 "Default is 1 - perform iIDMA. 0 - no iIDMA.");
 113
 114 int ql2xmaxqueues = 1;
 115 module_param(ql2xmaxqueues, int, S_IRUGO);
 116 MODULE_PARM_DESC(ql2xmaxqueues,
 117                 "Enables MQ settings "
 118                 "Default is 1 for single queue. Set it to number "
 119                 "of queues in MQ mode.");
 120
 121 int ql2xmultique_tag;
 122 module_param(ql2xmultique_tag, int, S_IRUGO);
 123 MODULE_PARM_DESC(ql2xmultique_tag,
 124                 "Enables CPU affinity settings for the driver "
 125                 "Default is 0 for no affinity of request and response IO. "
 126                 "Set it to 1 to turn on the cpu affinity.");
 127
 128 int ql2xfwloadbin;
 129 module_param(ql2xfwloadbin, int, S_IRUGO);
 130 MODULE_PARM_DESC(ql2xfwloadbin,
 131                 "Option to specify location from which to load ISP firmware:\n"
 132                 " 2 -- load firmware via the request_firmware() (hotplug)\n"
 133                 "      interface.\n"
 134                 " 1 -- load firmware from flash.\n"
 135                 " 0 -- use default semantics.\n");
 136
 137 int ql2xetsenable;
 138 module_param(ql2xetsenable, int, S_IRUGO);
 139 MODULE_PARM_DESC(ql2xetsenable,
 140                 "Enables firmware ETS burst."
 141                 "Default is 0 - skip ETS enablement.");
 142
 143 int ql2xdbwr = 1;
 144 module_param(ql2xdbwr, int, S_IRUGO);
 145 MODULE_PARM_DESC(ql2xdbwr,
 146         "Option to specify scheme for request queue posting\n"
 147         " 0 -- Regular doorbell.\n"
 148         " 1 -- CAMRAM doorbell (faster).\n");
 149
 150 int ql2xtargetreset = 1;
 151 module_param(ql2xtargetreset, int, S_IRUGO);
 152 MODULE_PARM_DESC(ql2xtargetreset,
 153                  "Enable target reset."
 154                  "Default is 1 - use hw defaults.");
 155
 156 int ql2xgffidenable;
 157 module_param(ql2xgffidenable, int, S_IRUGO);
 158 MODULE_PARM_DESC(ql2xgffidenable,
 159                 "Enables GFF_ID checks of port type. "
 160                 "Default is 0 - Do not use GFF_ID information.");
 161
 162 int ql2xasynctmfenable;
 163 module_param(ql2xasynctmfenable, int, S_IRUGO);
 164 MODULE_PARM_DESC(ql2xasynctmfenable,
 165                 "Enables issue of TM IOCBs asynchronously via IOCB mechanism"
 166                 "Default is 0 - Issue TM IOCBs via mailbox mechanism.");
 167 /*
 168  * SCSI host template entry points
 169  */
 170 static int qla2xxx_slave_configure(struct scsi_device * device);
 171 static int qla2xxx_slave_alloc(struct scsi_device *);
 172 static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
 173 static void qla2xxx_scan_start(struct Scsi_Host *);
 174 static void qla2xxx_slave_destroy(struct scsi_device *);
 175 static int qla2xxx_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmd);
 176 static int qla2xxx_eh_abort(struct scsi_cmnd *);
 177 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
 178 static int qla2xxx_eh_target_reset(struct scsi_cmnd *);
 179 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
 180 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
 181
 182 static int qla2x00_change_queue_depth(struct scsi_device *, int, int);
 183 static int qla2x00_change_queue_type(struct scsi_device *, int);
 184
 185 struct scsi_host_template qla2xxx_driver_template = {
 186         .module                 = THIS_MODULE,
 187         .name                   = QLA2XXX_DRIVER_NAME,
 188         .queuecommand           = qla2xxx_queuecommand,
 189
 190         .eh_abort_handler       = qla2xxx_eh_abort,
 191         .eh_device_reset_handler = qla2xxx_eh_device_reset,
 192         .eh_target_reset_handler = qla2xxx_eh_target_reset,
 193         .eh_bus_reset_handler   = qla2xxx_eh_bus_reset,
 194         .eh_host_reset_handler  = qla2xxx_eh_host_reset,
 195
 196         .slave_configure        = qla2xxx_slave_configure,
 197
 198         .slave_alloc            = qla2xxx_slave_alloc,
 199         .slave_destroy          = qla2xxx_slave_destroy,
 200         .scan_finished          = qla2xxx_scan_finished,
 201         .scan_start             = qla2xxx_scan_start,
 202         .change_queue_depth     = qla2x00_change_queue_depth,
 203         .change_queue_type      = qla2x00_change_queue_type,
 204         .this_id                = -1,
 205         .cmd_per_lun            = 3,
 206         .use_clustering         = ENABLE_CLUSTERING,
 207         .sg_tablesize           = SG_ALL,
 208
 209         .max_sectors            = 0xFFFF,
 210         .shost_attrs            = qla2x00_host_attrs,
 211 };
 212
 213 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
 214 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
 215
 216 /* TODO Convert to inlines
 217  *
 218  * Timer routines
 219  */
 220
 221 __inline__ void
 222 qla2x00_start_timer(scsi_qla_host_t *vha, void *func, unsigned long interval)
 223 {
 224         init_timer(&vha->timer);
 225         vha->timer.expires = jiffies + interval * HZ;
 226         vha->timer.data = (unsigned long)vha;
 227         vha->timer.function = (void (*)(unsigned long))func;
 228         add_timer(&vha->timer);
 229         vha->timer_active = 1;
 230 }
 231
 232 static inline void
 233 qla2x00_restart_timer(scsi_qla_host_t *vha, unsigned long interval)
 234 {
 235         /* Currently used for 82XX only. */
 236         if (vha->device_flags & DFLG_DEV_FAILED)
 237                 return;
 238
 239         mod_timer(&vha->timer, jiffies + interval * HZ);
 240 }
 241
 242 static __inline__ void
 243 qla2x00_stop_timer(scsi_qla_host_t *vha)
 244 {
 245         del_timer_sync(&vha->timer);
 246         vha->timer_active = 0;
 247 }
 248
 249 static int qla2x00_do_dpc(void *data);
 250
 251 static void qla2x00_rst_aen(scsi_qla_host_t *);
 252
 253 static int qla2x00_mem_alloc(struct qla_hw_data *, uint16_t, uint16_t,
 254         struct req_que **, struct rsp_que **);
 255 static void qla2x00_free_fw_dump(struct qla_hw_data *);
 256 static void qla2x00_mem_free(struct qla_hw_data *);
 257 static void qla2x00_sp_free_dma(srb_t *);
 258
 259 /* -------------------------------------------------------------------------- */
 260 static int qla2x00_alloc_queues(struct qla_hw_data *ha)
 261 {
 262         ha->req_q_map = kzalloc(sizeof(struct req_que *) * ha->max_req_queues,
 263                                 GFP_KERNEL);
 264         if (!ha->req_q_map) {
 265                 qla_printk(KERN_WARNING, ha,
 266                         "Unable to allocate memory for request queue ptrs\n");
 267                 goto fail_req_map;
 268         }
 269
 270         ha->rsp_q_map = kzalloc(sizeof(struct rsp_que *) * ha->max_rsp_queues,
 271                                 GFP_KERNEL);
 272         if (!ha->rsp_q_map) {
 273                 qla_printk(KERN_WARNING, ha,
 274                         "Unable to allocate memory for response queue ptrs\n");
 275                 goto fail_rsp_map;
 276         }
 277         set_bit(0, ha->rsp_qid_map);
 278         set_bit(0, ha->req_qid_map);
 279         return 1;
 280
 281 fail_rsp_map:
 282         kfree(ha->req_q_map);
 283         ha->req_q_map = NULL;
 284 fail_req_map:
 285         return -ENOMEM;
 286 }
 287
 288 static void qla2x00_free_req_que(struct qla_hw_data *ha, struct req_que *req)
 289 {
 290         if (req && req->ring)
 291                 dma_free_coherent(&ha->pdev->dev,
 292                 (req->length + 1) * sizeof(request_t),
 293                 req->ring, req->dma);
 294
 295         kfree(req);
 296         req = NULL;
 297 }
 298
 299 static void qla2x00_free_rsp_que(struct qla_hw_data *ha, struct rsp_que *rsp)
 300 {
 301         if (rsp && rsp->ring)
 302                 dma_free_coherent(&ha->pdev->dev,
 303                 (rsp->length + 1) * sizeof(response_t),
 304                 rsp->ring, rsp->dma);
 305
 306         kfree(rsp);
 307         rsp = NULL;
 308 }
 309
 310 static void qla2x00_free_queues(struct qla_hw_data *ha)
 311 {
 312         struct req_que *req;
 313         struct rsp_que *rsp;
 314         int cnt;
 315
 316         for (cnt = 0; cnt < ha->max_req_queues; cnt++) {
 317                 req = ha->req_q_map[cnt];
 318                 qla2x00_free_req_que(ha, req);
 319         }
 320         kfree(ha->req_q_map);
 321         ha->req_q_map = NULL;
 322
 323         for (cnt = 0; cnt < ha->max_rsp_queues; cnt++) {
 324                 rsp = ha->rsp_q_map[cnt];
 325                 qla2x00_free_rsp_que(ha, rsp);
 326         }
 327         kfree(ha->rsp_q_map);
 328         ha->rsp_q_map = NULL;
 329 }
 330
 331 static int qla25xx_setup_mode(struct scsi_qla_host *vha)
 332 {
 333         uint16_t options = 0;
 334         int ques, req, ret;
 335         struct qla_hw_data *ha = vha->hw;
 336
 337         if (!(ha->fw_attributes & BIT_6)) {
 338                 qla_printk(KERN_INFO, ha,
 339                         "Firmware is not multi-queue capable\n");
 340                 goto fail;
 341         }
 342         if (ql2xmultique_tag) {
 343                 /* create a request queue for IO */
 344                 options |= BIT_7;
 345                 req = qla25xx_create_req_que(ha, options, 0, 0, -1,
 346                         QLA_DEFAULT_QUE_QOS);
 347                 if (!req) {
 348                         qla_printk(KERN_WARNING, ha,
 349                                 "Can't create request queue\n");
 350                         goto fail;
 351                 }
 352                 ha->wq = alloc_workqueue("qla2xxx_wq", WQ_MEM_RECLAIM, 1);
 353                 vha->req = ha->req_q_map[req];
 354                 options |= BIT_1;
 355                 for (ques = 1; ques < ha->max_rsp_queues; ques++) {
 356                         ret = qla25xx_create_rsp_que(ha, options, 0, 0, req);
 357                         if (!ret) {
 358                                 qla_printk(KERN_WARNING, ha,
 359                                         "Response Queue create failed\n");
 360                                 goto fail2;
 361                         }
 362                 }
 363                 ha->flags.cpu_affinity_enabled = 1;
 364
 365                 DEBUG2(qla_printk(KERN_INFO, ha,
 366                         "CPU affinity mode enabled, no. of response"
 367                         " queues:%d, no. of request queues:%d\n",
 368                         ha->max_rsp_queues, ha->max_req_queues));
 369         }
 370         return 0;
 371 fail2:
 372         qla25xx_delete_queues(vha);
 373         destroy_workqueue(ha->wq);
 374         ha->wq = NULL;
 375 fail:
 376         ha->mqenable = 0;
 377         kfree(ha->req_q_map);
 378         kfree(ha->rsp_q_map);
 379         ha->max_req_queues = ha->max_rsp_queues = 1;
 380         return 1;
 381 }
 382
 383 static char *
 384 qla2x00_pci_info_str(struct scsi_qla_host *vha, char *str)
 385 {
 386         struct qla_hw_data *ha = vha->hw;
 387         static char *pci_bus_modes[] = {
 388                 "33", "66", "100", "133",
 389         };
 390         uint16_t pci_bus;
 391
 392         strcpy(str, "PCI");
 393         pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
 394         if (pci_bus) {
 395                 strcat(str, "-X (");
 396                 strcat(str, pci_bus_modes[pci_bus]);
 397         } else {
 398                 pci_bus = (ha->pci_attr & BIT_8) >> 8;
 399                 strcat(str, " (");
 400                 strcat(str, pci_bus_modes[pci_bus]);
 401         }
 402         strcat(str, " MHz)");
 403
 404         return (str);
 405 }
 406
 407 static char *
 408 qla24xx_pci_info_str(struct scsi_qla_host *vha, char *str)
 409 {
 410         static char *pci_bus_modes[] = { "33", "66", "100", "133", };
 411         struct qla_hw_data *ha = vha->hw;
 412         uint32_t pci_bus;
 413         int pcie_reg;
 414
 415         pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
 416         if (pcie_reg) {
 417                 char lwstr[6];
 418                 uint16_t pcie_lstat, lspeed, lwidth;
 419
 420                 pcie_reg += 0x12;
 421                 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
 422                 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
 423                 lwidth = (pcie_lstat &
 424                     (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
 425
 426                 strcpy(str, "PCIe (");
 427                 if (lspeed == 1)
 428                         strcat(str, "2.5GT/s ");
 429                 else if (lspeed == 2)
 430                         strcat(str, "5.0GT/s ");
 431                 else
 432                         strcat(str, "<unknown> ");
 433                 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
 434                 strcat(str, lwstr);
 435
 436                 return str;
 437         }
 438
 439         strcpy(str, "PCI");
 440         pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
 441         if (pci_bus == 0 || pci_bus == 8) {
 442                 strcat(str, " (");
 443                 strcat(str, pci_bus_modes[pci_bus >> 3]);
 444         } else {
 445                 strcat(str, "-X ");
 446                 if (pci_bus & BIT_2)
 447                         strcat(str, "Mode 2");
 448                 else
 449                         strcat(str, "Mode 1");
 450                 strcat(str, " (");
 451                 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
 452         }
 453         strcat(str, " MHz)");
 454
 455         return str;
 456 }
 457
 458 static char *
 459 qla2x00_fw_version_str(struct scsi_qla_host *vha, char *str)
 460 {
 461         char un_str[10];
 462         struct qla_hw_data *ha = vha->hw;
 463
 464         sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
 465             ha->fw_minor_version,
 466             ha->fw_subminor_version);
 467
 468         if (ha->fw_attributes & BIT_9) {
 469                 strcat(str, "FLX");
 470                 return (str);
 471         }
 472
 473         switch (ha->fw_attributes & 0xFF) {
 474         case 0x7:
 475                 strcat(str, "EF");
 476                 break;
 477         case 0x17:
 478                 strcat(str, "TP");
 479                 break;
 480         case 0x37:
 481                 strcat(str, "IP");
 482                 break;
 483         case 0x77:
 484                 strcat(str, "VI");
 485                 break;
 486         default:
 487                 sprintf(un_str, "(%x)", ha->fw_attributes);
 488                 strcat(str, un_str);
 489                 break;
 490         }
 491         if (ha->fw_attributes & 0x100)
 492                 strcat(str, "X");
 493
 494         return (str);
 495 }
 496
 497 static char *
 498 qla24xx_fw_version_str(struct scsi_qla_host *vha, char *str)
 499 {
 500         struct qla_hw_data *ha = vha->hw;
 501
 502         sprintf(str, "%d.%02d.%02d (%x)", ha->fw_major_version,
 503             ha->fw_minor_version, ha->fw_subminor_version, ha->fw_attributes);
 504         return str;
 505 }
 506
 507 static inline srb_t *
 508 qla2x00_get_new_sp(scsi_qla_host_t *vha, fc_port_t *fcport,
 509         struct scsi_cmnd *cmd)
 510 {
 511         srb_t *sp;
 512         struct qla_hw_data *ha = vha->hw;
 513
 514         sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
 515         if (!sp)
 516                 return sp;
 517
 518         atomic_set(&sp->ref_count, 1);
 519         sp->fcport = fcport;
 520         sp->cmd = cmd;
 521         sp->flags = 0;
 522         CMD_SP(cmd) = (void *)sp;
 523         sp->ctx = NULL;
 524
 525         return sp;
 526 }
 527
 528 static int
 529 qla2xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
 530 {
 531         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 532         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 533         struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
 534         struct qla_hw_data *ha = vha->hw;
 535         struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
 536         srb_t *sp;
 537         int rval;
 538
 539         if (ha->flags.eeh_busy) {
 540                 if (ha->flags.pci_channel_io_perm_failure)
 541                         cmd->result = DID_NO_CONNECT << 16;
 542                 else
 543                         cmd->result = DID_REQUEUE << 16;
 544                 goto qc24_fail_command;
 545         }
 546
 547         rval = fc_remote_port_chkready(rport);
 548         if (rval) {
 549                 cmd->result = rval;
 550                 goto qc24_fail_command;
 551         }
 552
 553         if (!vha->flags.difdix_supported &&
 554                 scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) {
 555                         DEBUG2(qla_printk(KERN_ERR, ha,
 556                             "DIF Cap Not Reg, fail DIF capable cmd's:%x\n",
 557                             cmd->cmnd[0]));
 558                         cmd->result = DID_NO_CONNECT << 16;
 559                         goto qc24_fail_command;
 560         }
 561         if (atomic_read(&fcport->state) != FCS_ONLINE) {
 562                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
 563                         atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
 564                         cmd->result = DID_NO_CONNECT << 16;
 565                         goto qc24_fail_command;
 566                 }
 567                 goto qc24_target_busy;
 568         }
 569
 570         sp = qla2x00_get_new_sp(base_vha, fcport, cmd);
 571         if (!sp)
 572                 goto qc24_host_busy;
 573
 574         rval = ha->isp_ops->start_scsi(sp);
 575         if (rval != QLA_SUCCESS)
 576                 goto qc24_host_busy_free_sp;
 577
 578         return 0;
 579
 580 qc24_host_busy_free_sp:
 581         qla2x00_sp_free_dma(sp);
 582         mempool_free(sp, ha->srb_mempool);
 583
 584 qc24_host_busy:
 585         return SCSI_MLQUEUE_HOST_BUSY;
 586
 587 qc24_target_busy:
 588         return SCSI_MLQUEUE_TARGET_BUSY;
 589
 590 qc24_fail_command:
 591         cmd->scsi_done(cmd);
 592
 593         return 0;
 594 }
 595
 596 /*
 597  * qla2x00_eh_wait_on_command
 598  *    Waits for the command to be returned by the Firmware for some
 599  *    max time.
 600  *
 601  * Input:
 602  *    cmd = Scsi Command to wait on.
 603  *
 604  * Return:
 605  *    Not Found : 0
 606  *    Found : 1
 607  */
 608 static int
 609 qla2x00_eh_wait_on_command(struct scsi_cmnd *cmd)
 610 {
 611 #define ABORT_POLLING_PERIOD    1000
 612 #define ABORT_WAIT_ITER         ((10 * 1000) / (ABORT_POLLING_PERIOD))
 613         unsigned long wait_iter = ABORT_WAIT_ITER;
 614         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 615         struct qla_hw_data *ha = vha->hw;
 616         int ret = QLA_SUCCESS;
 617
 618         if (unlikely(pci_channel_offline(ha->pdev)) || ha->flags.eeh_busy) {
 619                 DEBUG17(qla_printk(KERN_WARNING, ha, "return:eh_wait\n"));
 620                 return ret;
 621         }
 622
 623         while (CMD_SP(cmd) && wait_iter--) {
 624                 msleep(ABORT_POLLING_PERIOD);
 625         }
 626         if (CMD_SP(cmd))
 627                 ret = QLA_FUNCTION_FAILED;
 628
 629         return ret;
 630 }
 631
 632 /*
 633  * qla2x00_wait_for_hba_online
 634  *    Wait till the HBA is online after going through
 635  *    <= MAX_RETRIES_OF_ISP_ABORT  or
 636  *    finally HBA is disabled ie marked offline
 637  *
 638  * Input:
 639  *     ha - pointer to host adapter structure
 640  *
 641  * Note:
 642  *    Does context switching-Release SPIN_LOCK
 643  *    (if any) before calling this routine.
 644  *
 645  * Return:
 646  *    Success (Adapter is online) : 0
 647  *    Failed  (Adapter is offline/disabled) : 1
 648  */
 649 int
 650 qla2x00_wait_for_hba_online(scsi_qla_host_t *vha)
 651 {
 652         int             return_status;
 653         unsigned long   wait_online;
 654         struct qla_hw_data *ha = vha->hw;
 655         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 656
 657         wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 658         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 659             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 660             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 661             ha->dpc_active) && time_before(jiffies, wait_online)) {
 662
 663                 msleep(1000);
 664         }
 665         if (base_vha->flags.online)
 666                 return_status = QLA_SUCCESS;
 667         else
 668                 return_status = QLA_FUNCTION_FAILED;
 669
 670         return (return_status);
 671 }
 672
 673 /*
 674  * qla2x00_wait_for_reset_ready
 675  *    Wait till the HBA is online after going through
 676  *    <= MAX_RETRIES_OF_ISP_ABORT  or
 677  *    finally HBA is disabled ie marked offline or flash
 678  *    operations are in progress.
 679  *
 680  * Input:
 681  *     ha - pointer to host adapter structure
 682  *
 683  * Note:
 684  *    Does context switching-Release SPIN_LOCK
 685  *    (if any) before calling this routine.
 686  *
 687  * Return:
 688  *    Success (Adapter is online/no flash ops) : 0
 689  *    Failed  (Adapter is offline/disabled/flash ops in progress) : 1
 690  */
 691 static int
 692 qla2x00_wait_for_reset_ready(scsi_qla_host_t *vha)
 693 {
 694         int             return_status;
 695         unsigned long   wait_online;
 696         struct qla_hw_data *ha = vha->hw;
 697         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 698
 699         wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 700         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 701             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 702             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 703             ha->optrom_state != QLA_SWAITING ||
 704             ha->dpc_active) && time_before(jiffies, wait_online))
 705                 msleep(1000);
 706
 707         if (base_vha->flags.online &&  ha->optrom_state == QLA_SWAITING)
 708                 return_status = QLA_SUCCESS;
 709         else
 710                 return_status = QLA_FUNCTION_FAILED;
 711
 712         DEBUG2(printk("%s return_status=%d\n", __func__, return_status));
 713
 714         return return_status;
 715 }
 716
 717 int
 718 qla2x00_wait_for_chip_reset(scsi_qla_host_t *vha)
 719 {
 720         int             return_status;
 721         unsigned long   wait_reset;
 722         struct qla_hw_data *ha = vha->hw;
 723         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 724
 725         wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 726         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 727             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 728             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 729             ha->dpc_active) && time_before(jiffies, wait_reset)) {
 730
 731                 msleep(1000);
 732
 733                 if (!test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags) &&
 734                     ha->flags.chip_reset_done)
 735                         break;
 736         }
 737         if (ha->flags.chip_reset_done)
 738                 return_status = QLA_SUCCESS;
 739         else
 740                 return_status = QLA_FUNCTION_FAILED;
 741
 742         return return_status;
 743 }
 744
 745 /*
 746  * qla2x00_wait_for_loop_ready
 747  *    Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
 748  *    to be in LOOP_READY state.
 749  * Input:
 750  *     ha - pointer to host adapter structure
 751  *
 752  * Note:
 753  *    Does context switching-Release SPIN_LOCK
 754  *    (if any) before calling this routine.
 755  *
 756  *
 757  * Return:
 758  *    Success (LOOP_READY) : 0
 759  *    Failed  (LOOP_NOT_READY) : 1
 760  */
 761 static inline int
 762 qla2x00_wait_for_loop_ready(scsi_qla_host_t *vha)
 763 {
 764         int      return_status = QLA_SUCCESS;
 765         unsigned long loop_timeout ;
 766         struct qla_hw_data *ha = vha->hw;
 767         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 768
 769         /* wait for 5 min at the max for loop to be ready */
 770         loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 771
 772         while ((!atomic_read(&base_vha->loop_down_timer) &&
 773             atomic_read(&base_vha->loop_state) == LOOP_DOWN) ||
 774             atomic_read(&base_vha->loop_state) != LOOP_READY) {
 775                 if (atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
 776                         return_status = QLA_FUNCTION_FAILED;
 777                         break;
 778                 }
 779                 msleep(1000);
 780                 if (time_after_eq(jiffies, loop_timeout)) {
 781                         return_status = QLA_FUNCTION_FAILED;
 782                         break;
 783                 }
 784         }
 785         return (return_status);
 786 }
 787
 788 static void
 789 sp_get(struct srb *sp)
 790 {
 791         atomic_inc(&sp->ref_count);
 792 }
 793
 794 /**************************************************************************
 795 * qla2xxx_eh_abort
 796 *
 797 * Description:
 798 *    The abort function will abort the specified command.
 799 *
 800 * Input:
 801 *    cmd = Linux SCSI command packet to be aborted.
 802 *
 803 * Returns:
 804 *    Either SUCCESS or FAILED.
 805 *
 806 * Note:
 807 *    Only return FAILED if command not returned by firmware.
 808 **************************************************************************/
 809 static int
 810 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
 811 {
 812         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 813         srb_t *sp;
 814         int ret;
 815         unsigned int id, lun;
 816         unsigned long flags;
 817         int wait = 0;
 818         struct qla_hw_data *ha = vha->hw;
 819
 820         if (!CMD_SP(cmd))
 821                 return SUCCESS;
 822
 823         ret = fc_block_scsi_eh(cmd);
 824         if (ret != 0)
 825                 return ret;
 826         ret = SUCCESS;
 827
 828         id = cmd->device->id;
 829         lun = cmd->device->lun;
 830
 831         spin_lock_irqsave(&ha->hardware_lock, flags);
 832         sp = (srb_t *) CMD_SP(cmd);
 833         if (!sp) {
 834                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 835                 return SUCCESS;
 836         }
 837
 838         DEBUG2(printk("%s(%ld): aborting sp %p from RISC.",
 839             __func__, vha->host_no, sp));
 840
 841         /* Get a reference to the sp and drop the lock.*/
 842         sp_get(sp);
 843
 844         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 845         if (ha->isp_ops->abort_command(sp)) {
 846                 DEBUG2(printk("%s(%ld): abort_command "
 847                 "mbx failed.\n", __func__, vha->host_no));
 848                 ret = FAILED;
 849         } else {
 850                 DEBUG3(printk("%s(%ld): abort_command "
 851                 "mbx success.\n", __func__, vha->host_no));
 852                 wait = 1;
 853         }
 854         qla2x00_sp_compl(ha, sp);
 855
 856         /* Wait for the command to be returned. */
 857         if (wait) {
 858                 if (qla2x00_eh_wait_on_command(cmd) != QLA_SUCCESS) {
 859                         qla_printk(KERN_ERR, ha,
 860                             "scsi(%ld:%d:%d): Abort handler timed out -- %x.\n",
 861                             vha->host_no, id, lun, ret);
 862                         ret = FAILED;
 863                 }
 864         }
 865
 866         qla_printk(KERN_INFO, ha,
 867             "scsi(%ld:%d:%d): Abort command issued -- %d %x.\n",
 868             vha->host_no, id, lun, wait, ret);
 869
 870         return ret;
 871 }
 872
 873 int
 874 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *vha, unsigned int t,
 875         unsigned int l, enum nexus_wait_type type)
 876 {
 877         int cnt, match, status;
 878         unsigned long flags;
 879         struct qla_hw_data *ha = vha->hw;
 880         struct req_que *req;
 881         srb_t *sp;
 882
 883         status = QLA_SUCCESS;
 884
 885         spin_lock_irqsave(&ha->hardware_lock, flags);
 886         req = vha->req;
 887         for (cnt = 1; status == QLA_SUCCESS &&
 888                 cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
 889                 sp = req->outstanding_cmds[cnt];
 890                 if (!sp)
 891                         continue;
 892                 if ((sp->ctx) && !IS_PROT_IO(sp))
 893                         continue;
 894                 if (vha->vp_idx != sp->fcport->vha->vp_idx)
 895                         continue;
 896                 match = 0;
 897                 switch (type) {
 898                 case WAIT_HOST:
 899                         match = 1;
 900                         break;
 901                 case WAIT_TARGET:
 902                         match = sp->cmd->device->id == t;
 903                         break;
 904                 case WAIT_LUN:
 905                         match = (sp->cmd->device->id == t &&
 906                                 sp->cmd->device->lun == l);
 907                         break;
 908                 }
 909                 if (!match)
 910                         continue;
 911
 912                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 913                 status = qla2x00_eh_wait_on_command(sp->cmd);
 914                 spin_lock_irqsave(&ha->hardware_lock, flags);
 915         }
 916         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 917
 918         return status;
 919 }
 920
 921 static char *reset_errors[] = {
 922         "HBA not online",
 923         "HBA not ready",
 924         "Task management failed",
 925         "Waiting for command completions",
 926 };
 927
 928 static int
 929 __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
 930     struct scsi_cmnd *cmd, int (*do_reset)(struct fc_port *, unsigned int, int))
 931 {
 932         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 933         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 934         int err;
 935
 936         if (!fcport)
 937                 return FAILED;
 938
 939         err = fc_block_scsi_eh(cmd);
 940         if (err != 0)
 941                 return err;
 942
 943         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET ISSUED.\n",
 944             vha->host_no, cmd->device->id, cmd->device->lun, name);
 945
 946         err = 0;
 947         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
 948                 goto eh_reset_failed;
 949         err = 1;
 950         if (qla2x00_wait_for_loop_ready(vha) != QLA_SUCCESS)
 951                 goto eh_reset_failed;
 952         err = 2;
 953         if (do_reset(fcport, cmd->device->lun, cmd->request->cpu + 1)
 954                 != QLA_SUCCESS)
 955                 goto eh_reset_failed;
 956         err = 3;
 957         if (qla2x00_eh_wait_for_pending_commands(vha, cmd->device->id,
 958             cmd->device->lun, type) != QLA_SUCCESS)
 959                 goto eh_reset_failed;
 960
 961         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET SUCCEEDED.\n",
 962             vha->host_no, cmd->device->id, cmd->device->lun, name);
 963
 964         return SUCCESS;
 965
 966 eh_reset_failed:
 967         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET FAILED: %s.\n"
 968             , vha->host_no, cmd->device->id, cmd->device->lun, name,
 969             reset_errors[err]);
 970         return FAILED;
 971 }
 972
 973 static int
 974 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
 975 {
 976         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 977         struct qla_hw_data *ha = vha->hw;
 978
 979         return __qla2xxx_eh_generic_reset("DEVICE", WAIT_LUN, cmd,
 980             ha->isp_ops->lun_reset);
 981 }
 982
 983 static int
 984 qla2xxx_eh_target_reset(struct scsi_cmnd *cmd)
 985 {
 986         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 987         struct qla_hw_data *ha = vha->hw;
 988
 989         return __qla2xxx_eh_generic_reset("TARGET", WAIT_TARGET, cmd,
 990             ha->isp_ops->target_reset);
 991 }
 992
 993 /**************************************************************************
 994 * qla2xxx_eh_bus_reset
 995 *
 996 * Description:
 997 *    The bus reset function will reset the bus and abort any executing
 998 *    commands.
 999 *
1000 * Input:
1001 *    cmd = Linux SCSI command packet of the command that cause the
1002 *          bus reset.
1003 *
1004 * Returns:
1005 *    SUCCESS/FAILURE (defined as macro in scsi.h).
1006 *
1007 **************************************************************************/
1008 static int
1009 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
1010 {
1011         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1012         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1013         int ret = FAILED;
1014         unsigned int id, lun;
1015
1016         id = cmd->device->id;
1017         lun = cmd->device->lun;
1018
1019         if (!fcport)
1020                 return ret;
1021
1022         ret = fc_block_scsi_eh(cmd);
1023         if (ret != 0)
1024                 return ret;
1025         ret = FAILED;
1026
1027         qla_printk(KERN_INFO, vha->hw,
1028             "scsi(%ld:%d:%d): BUS RESET ISSUED.\n", vha->host_no, id, lun);
1029
1030         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1031                 DEBUG2(printk("%s failed:board disabled\n",__func__));
1032                 goto eh_bus_reset_done;
1033         }
1034
1035         if (qla2x00_wait_for_loop_ready(vha) == QLA_SUCCESS) {
1036                 if (qla2x00_loop_reset(vha) == QLA_SUCCESS)
1037                         ret = SUCCESS;
1038         }
1039         if (ret == FAILED)
1040                 goto eh_bus_reset_done;
1041
1042         /* Flush outstanding commands. */
1043         if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST) !=
1044             QLA_SUCCESS)
1045                 ret = FAILED;
1046
1047 eh_bus_reset_done:
1048         qla_printk(KERN_INFO, vha->hw, "%s: reset %s\n", __func__,
1049             (ret == FAILED) ? "failed" : "succeded");
1050
1051         return ret;
1052 }
1053
1054 /**************************************************************************
1055 * qla2xxx_eh_host_reset
1056 *
1057 * Description:
1058 *    The reset function will reset the Adapter.
1059 *
1060 * Input:
1061 *      cmd = Linux SCSI command packet of the command that cause the
1062 *            adapter reset.
1063 *
1064 * Returns:
1065 *      Either SUCCESS or FAILED.
1066 *
1067 * Note:
1068 **************************************************************************/
1069 static int
1070 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
1071 {
1072         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1073         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1074         struct qla_hw_data *ha = vha->hw;
1075         int ret = FAILED;
1076         unsigned int id, lun;
1077         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1078
1079         id = cmd->device->id;
1080         lun = cmd->device->lun;
1081
1082         if (!fcport)
1083                 return ret;
1084
1085         ret = fc_block_scsi_eh(cmd);
1086         if (ret != 0)
1087                 return ret;
1088         ret = FAILED;
1089
1090         qla_printk(KERN_INFO, ha,
1091             "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", vha->host_no, id, lun);
1092
1093         if (qla2x00_wait_for_reset_ready(vha) != QLA_SUCCESS)
1094                 goto eh_host_reset_lock;
1095
1096         /*
1097          * Fixme-may be dpc thread is active and processing
1098          * loop_resync,so wait a while for it to
1099          * be completed and then issue big hammer.Otherwise
1100          * it may cause I/O failure as big hammer marks the
1101          * devices as lost kicking of the port_down_timer
1102          * while dpc is stuck for the mailbox to complete.
1103          */
1104         qla2x00_wait_for_loop_ready(vha);
1105         if (vha != base_vha) {
1106                 if (qla2x00_vp_abort_isp(vha))
1107                         goto eh_host_reset_lock;
1108         } else {
1109                 if (IS_QLA82XX(vha->hw)) {
1110                         if (!qla82xx_fcoe_ctx_reset(vha)) {
1111                                 /* Ctx reset success */
1112                                 ret = SUCCESS;
1113                                 goto eh_host_reset_lock;
1114                         }
1115                         /* fall thru if ctx reset failed */
1116                 }
1117                 if (ha->wq)
1118                         flush_workqueue(ha->wq);
1119
1120                 set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1121                 if (ha->isp_ops->abort_isp(base_vha)) {
1122                         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1123                         /* failed. schedule dpc to try */
1124                         set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags);
1125
1126                         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
1127                                 goto eh_host_reset_lock;
1128                 }
1129                 clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1130         }
1131
1132         /* Waiting for command to be returned to OS.*/
1133         if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST) ==
1134                 QLA_SUCCESS)
1135                 ret = SUCCESS;
1136
1137 eh_host_reset_lock:
1138         qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
1139             (ret == FAILED) ? "failed" : "succeded");
1140
1141         return ret;
1142 }
1143
1144 /*
1145 * qla2x00_loop_reset
1146 *      Issue loop reset.
1147 *
1148 * Input:
1149 *      ha = adapter block pointer.
1150 *
1151 * Returns:
1152 *      0 = success
1153 */
1154 int
1155 qla2x00_loop_reset(scsi_qla_host_t *vha)
1156 {
1157         int ret;
1158         struct fc_port *fcport;
1159         struct qla_hw_data *ha = vha->hw;
1160
1161         if (ql2xtargetreset == 1 && ha->flags.enable_target_reset) {
1162                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
1163                         if (fcport->port_type != FCT_TARGET)
1164                                 continue;
1165
1166                         ret = ha->isp_ops->target_reset(fcport, 0, 0);
1167                         if (ret != QLA_SUCCESS) {
1168                                 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1169                                     "target_reset=%d d_id=%x.\n", __func__,
1170                                     vha->host_no, ret, fcport->d_id.b24));
1171                         }
1172                 }
1173         }
1174
1175         if (ha->flags.enable_lip_full_login && !IS_QLA8XXX_TYPE(ha)) {
1176                 ret = qla2x00_full_login_lip(vha);
1177                 if (ret != QLA_SUCCESS) {
1178                         DEBUG2_3(printk("%s(%ld): failed: "
1179                             "full_login_lip=%d.\n", __func__, vha->host_no,
1180                             ret));
1181                 }
1182                 atomic_set(&vha->loop_state, LOOP_DOWN);
1183                 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1184                 qla2x00_mark_all_devices_lost(vha, 0);
1185                 qla2x00_wait_for_loop_ready(vha);
1186         }
1187
1188         if (ha->flags.enable_lip_reset) {
1189                 ret = qla2x00_lip_reset(vha);
1190                 if (ret != QLA_SUCCESS) {
1191                         DEBUG2_3(printk("%s(%ld): failed: "
1192                             "lip_reset=%d.\n", __func__, vha->host_no, ret));
1193                 } else
1194                         qla2x00_wait_for_loop_ready(vha);
1195         }
1196
1197         /* Issue marker command only when we are going to start the I/O */
1198         vha->marker_needed = 1;
1199
1200         return QLA_SUCCESS;
1201 }
1202
1203 void
1204 qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res)
1205 {
1206         int que, cnt;
1207         unsigned long flags;
1208         srb_t *sp;
1209         struct srb_ctx *ctx;
1210         struct qla_hw_data *ha = vha->hw;
1211         struct req_que *req;
1212
1213         spin_lock_irqsave(&ha->hardware_lock, flags);
1214         for (que = 0; que < ha->max_req_queues; que++) {
1215                 req = ha->req_q_map[que];
1216                 if (!req)
1217                         continue;
1218                 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
1219                         sp = req->outstanding_cmds[cnt];
1220                         if (sp) {
1221                                 req->outstanding_cmds[cnt] = NULL;
1222                                 if (!sp->ctx ||
1223                                         (sp->flags & SRB_FCP_CMND_DMA_VALID) ||
1224                                         IS_PROT_IO(sp)) {
1225                                         sp->cmd->result = res;
1226                                         qla2x00_sp_compl(ha, sp);
1227                                 } else {
1228                                         ctx = sp->ctx;
1229                                         if (ctx->type == SRB_LOGIN_CMD ||
1230                                             ctx->type == SRB_LOGOUT_CMD) {
1231                                                 ctx->u.iocb_cmd->free(sp);
1232                                         } else {
1233                                                 struct fc_bsg_job *bsg_job =
1234                                                     ctx->u.bsg_job;
1235                                                 if (bsg_job->request->msgcode
1236                                                     == FC_BSG_HST_CT)
1237                                                         kfree(sp->fcport);
1238                                                 bsg_job->req->errors = 0;
1239                                                 bsg_job->reply->result = res;
1240                                                 bsg_job->job_done(bsg_job);
1241                                                 kfree(sp->ctx);
1242                                                 mempool_free(sp,
1243                                                         ha->srb_mempool);
1244                                         }
1245                                 }
1246                         }
1247                 }
1248         }
1249         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1250 }
1251
1252 static int
1253 qla2xxx_slave_alloc(struct scsi_device *sdev)
1254 {
1255         struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1256
1257         if (!rport || fc_remote_port_chkready(rport))
1258                 return -ENXIO;
1259
1260         sdev->hostdata = *(fc_port_t **)rport->dd_data;
1261
1262         return 0;
1263 }
1264
1265 static int
1266 qla2xxx_slave_configure(struct scsi_device *sdev)
1267 {
1268         scsi_qla_host_t *vha = shost_priv(sdev->host);
1269         struct req_que *req = vha->req;
1270
1271         if (sdev->tagged_supported)
1272                 scsi_activate_tcq(sdev, req->max_q_depth);
1273         else
1274                 scsi_deactivate_tcq(sdev, req->max_q_depth);
1275         return 0;
1276 }
1277
1278 static void
1279 qla2xxx_slave_destroy(struct scsi_device *sdev)
1280 {
1281         sdev->hostdata = NULL;
1282 }
1283
1284 static void qla2x00_handle_queue_full(struct scsi_device *sdev, int qdepth)
1285 {
1286         fc_port_t *fcport = (struct fc_port *) sdev->hostdata;
1287
1288         if (!scsi_track_queue_full(sdev, qdepth))
1289                 return;
1290
1291         DEBUG2(qla_printk(KERN_INFO, fcport->vha->hw,
1292                 "scsi(%ld:%d:%d:%d): Queue depth adjusted-down to %d.\n",
1293                 fcport->vha->host_no, sdev->channel, sdev->id, sdev->lun,
1294                 sdev->queue_depth));
1295 }
1296
1297 static void qla2x00_adjust_sdev_qdepth_up(struct scsi_device *sdev, int qdepth)
1298 {
1299         fc_port_t *fcport = sdev->hostdata;
1300         struct scsi_qla_host *vha = fcport->vha;
1301         struct qla_hw_data *ha = vha->hw;
1302         struct req_que *req = NULL;
1303
1304         req = vha->req;
1305         if (!req)
1306                 return;
1307
1308         if (req->max_q_depth <= sdev->queue_depth || req->max_q_depth < qdepth)
1309                 return;
1310
1311         if (sdev->ordered_tags)
1312                 scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, qdepth);
1313         else
1314                 scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, qdepth);
1315
1316         DEBUG2(qla_printk(KERN_INFO, ha,
1317                "scsi(%ld:%d:%d:%d): Queue depth adjusted-up to %d.\n",
1318                fcport->vha->host_no, sdev->channel, sdev->id, sdev->lun,
1319                sdev->queue_depth));
1320 }
1321
1322 static int
1323 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
1324 {
1325         switch (reason) {
1326         case SCSI_QDEPTH_DEFAULT:
1327                 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1328                 break;
1329         case SCSI_QDEPTH_QFULL:
1330                 qla2x00_handle_queue_full(sdev, qdepth);
1331                 break;
1332         case SCSI_QDEPTH_RAMP_UP:
1333                 qla2x00_adjust_sdev_qdepth_up(sdev, qdepth);
1334                 break;
1335         default:
1336                 return -EOPNOTSUPP;
1337         }
1338
1339         return sdev->queue_depth;
1340 }
1341
1342 static int
1343 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1344 {
1345         if (sdev->tagged_supported) {
1346                 scsi_set_tag_type(sdev, tag_type);
1347                 if (tag_type)
1348                         scsi_activate_tcq(sdev, sdev->queue_depth);
1349                 else
1350                         scsi_deactivate_tcq(sdev, sdev->queue_depth);
1351         } else
1352                 tag_type = 0;
1353
1354         return tag_type;
1355 }
1356
1357 /**
1358  * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1359  * @ha: HA context
1360  *
1361  * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1362  * supported addressing method.
1363  */
1364 static void
1365 qla2x00_config_dma_addressing(struct qla_hw_data *ha)
1366 {
1367         /* Assume a 32bit DMA mask. */
1368         ha->flags.enable_64bit_addressing = 0;
1369
1370         if (!dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(64))) {
1371                 /* Any upper-dword bits set? */
1372                 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1373                     !pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
1374                         /* Ok, a 64bit DMA mask is applicable. */
1375                         ha->flags.enable_64bit_addressing = 1;
1376                         ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1377                         ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1378                         return;
1379                 }
1380         }
1381
1382         dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(32));
1383         pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(32));
1384 }
1385
1386 static void
1387 qla2x00_enable_intrs(struct qla_hw_data *ha)
1388 {
1389         unsigned long flags = 0;
1390         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1391
1392         spin_lock_irqsave(&ha->hardware_lock, flags);
1393         ha->interrupts_on = 1;
1394         /* enable risc and host interrupts */
1395         WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1396         RD_REG_WORD(&reg->ictrl);
1397         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1398
1399 }
1400
1401 static void
1402 qla2x00_disable_intrs(struct qla_hw_data *ha)
1403 {
1404         unsigned long flags = 0;
1405         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1406
1407         spin_lock_irqsave(&ha->hardware_lock, flags);
1408         ha->interrupts_on = 0;
1409         /* disable risc and host interrupts */
1410         WRT_REG_WORD(&reg->ictrl, 0);
1411         RD_REG_WORD(&reg->ictrl);
1412         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1413 }
1414
1415 static void
1416 qla24xx_enable_intrs(struct qla_hw_data *ha)
1417 {
1418         unsigned long flags = 0;
1419         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1420
1421         spin_lock_irqsave(&ha->hardware_lock, flags);
1422         ha->interrupts_on = 1;
1423         WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1424         RD_REG_DWORD(&reg->ictrl);
1425         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1426 }
1427
1428 static void
1429 qla24xx_disable_intrs(struct qla_hw_data *ha)
1430 {
1431         unsigned long flags = 0;
1432         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1433
1434         if (IS_NOPOLLING_TYPE(ha))
1435                 return;
1436         spin_lock_irqsave(&ha->hardware_lock, flags);
1437         ha->interrupts_on = 0;
1438         WRT_REG_DWORD(&reg->ictrl, 0);
1439         RD_REG_DWORD(&reg->ictrl);
1440         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1441 }
1442
1443 static struct isp_operations qla2100_isp_ops = {
1444         .pci_config             = qla2100_pci_config,
1445         .reset_chip             = qla2x00_reset_chip,
1446         .chip_diag              = qla2x00_chip_diag,
1447         .config_rings           = qla2x00_config_rings,
1448         .reset_adapter          = qla2x00_reset_adapter,
1449         .nvram_config           = qla2x00_nvram_config,
1450         .update_fw_options      = qla2x00_update_fw_options,
1451         .load_risc              = qla2x00_load_risc,
1452         .pci_info_str           = qla2x00_pci_info_str,
1453         .fw_version_str         = qla2x00_fw_version_str,
1454         .intr_handler           = qla2100_intr_handler,
1455         .enable_intrs           = qla2x00_enable_intrs,
1456         .disable_intrs          = qla2x00_disable_intrs,
1457         .abort_command          = qla2x00_abort_command,
1458         .target_reset           = qla2x00_abort_target,
1459         .lun_reset              = qla2x00_lun_reset,
1460         .fabric_login           = qla2x00_login_fabric,
1461         .fabric_logout          = qla2x00_fabric_logout,
1462         .calc_req_entries       = qla2x00_calc_iocbs_32,
1463         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1464         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1465         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1466         .read_nvram             = qla2x00_read_nvram_data,
1467         .write_nvram            = qla2x00_write_nvram_data,
1468         .fw_dump                = qla2100_fw_dump,
1469         .beacon_on              = NULL,
1470         .beacon_off             = NULL,
1471         .beacon_blink           = NULL,
1472         .read_optrom            = qla2x00_read_optrom_data,
1473         .write_optrom           = qla2x00_write_optrom_data,
1474         .get_flash_version      = qla2x00_get_flash_version,
1475         .start_scsi             = qla2x00_start_scsi,
1476         .abort_isp              = qla2x00_abort_isp,
1477 };
1478
1479 static struct isp_operations qla2300_isp_ops = {
1480         .pci_config             = qla2300_pci_config,
1481         .reset_chip             = qla2x00_reset_chip,
1482         .chip_diag              = qla2x00_chip_diag,
1483         .config_rings           = qla2x00_config_rings,
1484         .reset_adapter          = qla2x00_reset_adapter,
1485         .nvram_config           = qla2x00_nvram_config,
1486         .update_fw_options      = qla2x00_update_fw_options,
1487         .load_risc              = qla2x00_load_risc,
1488         .pci_info_str           = qla2x00_pci_info_str,
1489         .fw_version_str         = qla2x00_fw_version_str,
1490         .intr_handler           = qla2300_intr_handler,
1491         .enable_intrs           = qla2x00_enable_intrs,
1492         .disable_intrs          = qla2x00_disable_intrs,
1493         .abort_command          = qla2x00_abort_command,
1494         .target_reset           = qla2x00_abort_target,
1495         .lun_reset              = qla2x00_lun_reset,
1496         .fabric_login           = qla2x00_login_fabric,
1497         .fabric_logout          = qla2x00_fabric_logout,
1498         .calc_req_entries       = qla2x00_calc_iocbs_32,
1499         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1500         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1501         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1502         .read_nvram             = qla2x00_read_nvram_data,
1503         .write_nvram            = qla2x00_write_nvram_data,
1504         .fw_dump                = qla2300_fw_dump,
1505         .beacon_on              = qla2x00_beacon_on,
1506         .beacon_off             = qla2x00_beacon_off,
1507         .beacon_blink           = qla2x00_beacon_blink,
1508         .read_optrom            = qla2x00_read_optrom_data,
1509         .write_optrom           = qla2x00_write_optrom_data,
1510         .get_flash_version      = qla2x00_get_flash_version,
1511         .start_scsi             = qla2x00_start_scsi,
1512         .abort_isp              = qla2x00_abort_isp,
1513 };
1514
1515 static struct isp_operations qla24xx_isp_ops = {
1516         .pci_config             = qla24xx_pci_config,
1517         .reset_chip             = qla24xx_reset_chip,
1518         .chip_diag              = qla24xx_chip_diag,
1519         .config_rings           = qla24xx_config_rings,
1520         .reset_adapter          = qla24xx_reset_adapter,
1521         .nvram_config           = qla24xx_nvram_config,
1522         .update_fw_options      = qla24xx_update_fw_options,
1523         .load_risc              = qla24xx_load_risc,
1524         .pci_info_str           = qla24xx_pci_info_str,
1525         .fw_version_str         = qla24xx_fw_version_str,
1526         .intr_handler           = qla24xx_intr_handler,
1527         .enable_intrs           = qla24xx_enable_intrs,
1528         .disable_intrs          = qla24xx_disable_intrs,
1529         .abort_command          = qla24xx_abort_command,
1530         .target_reset           = qla24xx_abort_target,
1531         .lun_reset              = qla24xx_lun_reset,
1532         .fabric_login           = qla24xx_login_fabric,
1533         .fabric_logout          = qla24xx_fabric_logout,
1534         .calc_req_entries       = NULL,
1535         .build_iocbs            = NULL,
1536         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1537         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1538         .read_nvram             = qla24xx_read_nvram_data,
1539         .write_nvram            = qla24xx_write_nvram_data,
1540         .fw_dump                = qla24xx_fw_dump,
1541         .beacon_on              = qla24xx_beacon_on,
1542         .beacon_off             = qla24xx_beacon_off,
1543         .beacon_blink           = qla24xx_beacon_blink,
1544         .read_optrom            = qla24xx_read_optrom_data,
1545         .write_optrom           = qla24xx_write_optrom_data,
1546         .get_flash_version      = qla24xx_get_flash_version,
1547         .start_scsi             = qla24xx_start_scsi,
1548         .abort_isp              = qla2x00_abort_isp,
1549 };
1550
1551 static struct isp_operations qla25xx_isp_ops = {
1552         .pci_config             = qla25xx_pci_config,
1553         .reset_chip             = qla24xx_reset_chip,
1554         .chip_diag              = qla24xx_chip_diag,
1555         .config_rings           = qla24xx_config_rings,
1556         .reset_adapter          = qla24xx_reset_adapter,
1557         .nvram_config           = qla24xx_nvram_config,
1558         .update_fw_options      = qla24xx_update_fw_options,
1559         .load_risc              = qla24xx_load_risc,
1560         .pci_info_str           = qla24xx_pci_info_str,
1561         .fw_version_str         = qla24xx_fw_version_str,
1562         .intr_handler           = qla24xx_intr_handler,
1563         .enable_intrs           = qla24xx_enable_intrs,
1564         .disable_intrs          = qla24xx_disable_intrs,
1565         .abort_command          = qla24xx_abort_command,
1566         .target_reset           = qla24xx_abort_target,
1567         .lun_reset              = qla24xx_lun_reset,
1568         .fabric_login           = qla24xx_login_fabric,
1569         .fabric_logout          = qla24xx_fabric_logout,
1570         .calc_req_entries       = NULL,
1571         .build_iocbs            = NULL,
1572         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1573         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1574         .read_nvram             = qla25xx_read_nvram_data,
1575         .write_nvram            = qla25xx_write_nvram_data,
1576         .fw_dump                = qla25xx_fw_dump,
1577         .beacon_on              = qla24xx_beacon_on,
1578         .beacon_off             = qla24xx_beacon_off,
1579         .beacon_blink           = qla24xx_beacon_blink,
1580         .read_optrom            = qla25xx_read_optrom_data,
1581         .write_optrom           = qla24xx_write_optrom_data,
1582         .get_flash_version      = qla24xx_get_flash_version,
1583         .start_scsi             = qla24xx_dif_start_scsi,
1584         .abort_isp              = qla2x00_abort_isp,
1585 };
1586
1587 static struct isp_operations qla81xx_isp_ops = {
1588         .pci_config             = qla25xx_pci_config,
1589         .reset_chip             = qla24xx_reset_chip,
1590         .chip_diag              = qla24xx_chip_diag,
1591         .config_rings           = qla24xx_config_rings,
1592         .reset_adapter          = qla24xx_reset_adapter,
1593         .nvram_config           = qla81xx_nvram_config,
1594         .update_fw_options      = qla81xx_update_fw_options,
1595         .load_risc              = qla81xx_load_risc,
1596         .pci_info_str           = qla24xx_pci_info_str,
1597         .fw_version_str         = qla24xx_fw_version_str,
1598         .intr_handler           = qla24xx_intr_handler,
1599         .enable_intrs           = qla24xx_enable_intrs,
1600         .disable_intrs          = qla24xx_disable_intrs,
1601         .abort_command          = qla24xx_abort_command,
1602         .target_reset           = qla24xx_abort_target,
1603         .lun_reset              = qla24xx_lun_reset,
1604         .fabric_login           = qla24xx_login_fabric,
1605         .fabric_logout          = qla24xx_fabric_logout,
1606         .calc_req_entries       = NULL,
1607         .build_iocbs            = NULL,
1608         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1609         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1610         .read_nvram             = NULL,
1611         .write_nvram            = NULL,
1612         .fw_dump                = qla81xx_fw_dump,
1613         .beacon_on              = qla24xx_beacon_on,
1614         .beacon_off             = qla24xx_beacon_off,
1615         .beacon_blink           = qla24xx_beacon_blink,
1616         .read_optrom            = qla25xx_read_optrom_data,
1617         .write_optrom           = qla24xx_write_optrom_data,
1618         .get_flash_version      = qla24xx_get_flash_version,
1619         .start_scsi             = qla24xx_dif_start_scsi,
1620         .abort_isp              = qla2x00_abort_isp,
1621 };
1622
1623 static struct isp_operations qla82xx_isp_ops = {
1624         .pci_config             = qla82xx_pci_config,
1625         .reset_chip             = qla82xx_reset_chip,
1626         .chip_diag              = qla24xx_chip_diag,
1627         .config_rings           = qla82xx_config_rings,
1628         .reset_adapter          = qla24xx_reset_adapter,
1629         .nvram_config           = qla81xx_nvram_config,
1630         .update_fw_options      = qla24xx_update_fw_options,
1631         .load_risc              = qla82xx_load_risc,
1632         .pci_info_str           = qla82xx_pci_info_str,
1633         .fw_version_str         = qla24xx_fw_version_str,
1634         .intr_handler           = qla82xx_intr_handler,
1635         .enable_intrs           = qla82xx_enable_intrs,
1636         .disable_intrs          = qla82xx_disable_intrs,
1637         .abort_command          = qla24xx_abort_command,
1638         .target_reset           = qla24xx_abort_target,
1639         .lun_reset              = qla24xx_lun_reset,
1640         .fabric_login           = qla24xx_login_fabric,
1641         .fabric_logout          = qla24xx_fabric_logout,
1642         .calc_req_entries       = NULL,
1643         .build_iocbs            = NULL,
1644         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1645         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1646         .read_nvram             = qla24xx_read_nvram_data,
1647         .write_nvram            = qla24xx_write_nvram_data,
1648         .fw_dump                = qla24xx_fw_dump,
1649         .beacon_on              = qla24xx_beacon_on,
1650         .beacon_off             = qla24xx_beacon_off,
1651         .beacon_blink           = qla24xx_beacon_blink,
1652         .read_optrom            = qla82xx_read_optrom_data,
1653         .write_optrom           = qla82xx_write_optrom_data,
1654         .get_flash_version      = qla24xx_get_flash_version,
1655         .start_scsi             = qla82xx_start_scsi,
1656         .abort_isp              = qla82xx_abort_isp,
1657 };
1658
1659 static inline void
1660 qla2x00_set_isp_flags(struct qla_hw_data *ha)
1661 {
1662         ha->device_type = DT_EXTENDED_IDS;
1663         switch (ha->pdev->device) {
1664         case PCI_DEVICE_ID_QLOGIC_ISP2100:
1665                 ha->device_type |= DT_ISP2100;
1666                 ha->device_type &= ~DT_EXTENDED_IDS;
1667                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1668                 break;
1669         case PCI_DEVICE_ID_QLOGIC_ISP2200:
1670                 ha->device_type |= DT_ISP2200;
1671                 ha->device_type &= ~DT_EXTENDED_IDS;
1672                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1673                 break;
1674         case PCI_DEVICE_ID_QLOGIC_ISP2300:
1675                 ha->device_type |= DT_ISP2300;
1676                 ha->device_type |= DT_ZIO_SUPPORTED;
1677                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1678                 break;
1679         case PCI_DEVICE_ID_QLOGIC_ISP2312:
1680                 ha->device_type |= DT_ISP2312;
1681                 ha->device_type |= DT_ZIO_SUPPORTED;
1682                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1683                 break;
1684         case PCI_DEVICE_ID_QLOGIC_ISP2322:
1685                 ha->device_type |= DT_ISP2322;
1686                 ha->device_type |= DT_ZIO_SUPPORTED;
1687                 if (ha->pdev->subsystem_vendor == 0x1028 &&
1688                     ha->pdev->subsystem_device == 0x0170)
1689                         ha->device_type |= DT_OEM_001;
1690                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1691                 break;
1692         case PCI_DEVICE_ID_QLOGIC_ISP6312:
1693                 ha->device_type |= DT_ISP6312;
1694                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1695                 break;
1696         case PCI_DEVICE_ID_QLOGIC_ISP6322:
1697                 ha->device_type |= DT_ISP6322;
1698                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1699                 break;
1700         case PCI_DEVICE_ID_QLOGIC_ISP2422:
1701                 ha->device_type |= DT_ISP2422;
1702                 ha->device_type |= DT_ZIO_SUPPORTED;
1703                 ha->device_type |= DT_FWI2;
1704                 ha->device_type |= DT_IIDMA;
1705                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1706                 break;
1707         case PCI_DEVICE_ID_QLOGIC_ISP2432:
1708                 ha->device_type |= DT_ISP2432;
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_ISP8432:
1715                 ha->device_type |= DT_ISP8432;
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_ISP5422:
1722                 ha->device_type |= DT_ISP5422;
1723                 ha->device_type |= DT_FWI2;
1724                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1725                 break;
1726         case PCI_DEVICE_ID_QLOGIC_ISP5432:
1727                 ha->device_type |= DT_ISP5432;
1728                 ha->device_type |= DT_FWI2;
1729                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1730                 break;
1731         case PCI_DEVICE_ID_QLOGIC_ISP2532:
1732                 ha->device_type |= DT_ISP2532;
1733                 ha->device_type |= DT_ZIO_SUPPORTED;
1734                 ha->device_type |= DT_FWI2;
1735                 ha->device_type |= DT_IIDMA;
1736                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1737                 break;
1738         case PCI_DEVICE_ID_QLOGIC_ISP8001:
1739                 ha->device_type |= DT_ISP8001;
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_ISP8021:
1746                 ha->device_type |= DT_ISP8021;
1747                 ha->device_type |= DT_ZIO_SUPPORTED;
1748                 ha->device_type |= DT_FWI2;
1749                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1750                 /* Initialize 82XX ISP flags */
1751                 qla82xx_init_flags(ha);
1752                 break;
1753         }
1754
1755         if (IS_QLA82XX(ha))
1756                 ha->port_no = !(ha->portnum & 1);
1757         else
1758                 /* Get adapter physical port no from interrupt pin register. */
1759                 pci_read_config_byte(ha->pdev, PCI_INTERRUPT_PIN, &ha->port_no);
1760
1761         if (ha->port_no & 1)
1762                 ha->flags.port0 = 1;
1763         else
1764                 ha->flags.port0 = 0;
1765 }
1766
1767 static int
1768 qla2x00_iospace_config(struct qla_hw_data *ha)
1769 {
1770         resource_size_t pio;
1771         uint16_t msix;
1772         int cpus;
1773
1774         if (IS_QLA82XX(ha))
1775                 return qla82xx_iospace_config(ha);
1776
1777         if (pci_request_selected_regions(ha->pdev, ha->bars,
1778             QLA2XXX_DRIVER_NAME)) {
1779                 qla_printk(KERN_WARNING, ha,
1780                     "Failed to reserve PIO/MMIO regions (%s)\n",
1781                     pci_name(ha->pdev));
1782
1783                 goto iospace_error_exit;
1784         }
1785         if (!(ha->bars & 1))
1786                 goto skip_pio;
1787
1788         /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1789         pio = pci_resource_start(ha->pdev, 0);
1790         if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
1791                 if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1792                         qla_printk(KERN_WARNING, ha,
1793                             "Invalid PCI I/O region size (%s)...\n",
1794                                 pci_name(ha->pdev));
1795                         pio = 0;
1796                 }
1797         } else {
1798                 qla_printk(KERN_WARNING, ha,
1799                     "region #0 not a PIO resource (%s)...\n",
1800                     pci_name(ha->pdev));
1801                 pio = 0;
1802         }
1803         ha->pio_address = pio;
1804
1805 skip_pio:
1806         /* Use MMIO operations for all accesses. */
1807         if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
1808                 qla_printk(KERN_ERR, ha,
1809                     "region #1 not an MMIO resource (%s), aborting\n",
1810                     pci_name(ha->pdev));
1811                 goto iospace_error_exit;
1812         }
1813         if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
1814                 qla_printk(KERN_ERR, ha,
1815                     "Invalid PCI mem region size (%s), aborting\n",
1816                         pci_name(ha->pdev));
1817                 goto iospace_error_exit;
1818         }
1819
1820         ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
1821         if (!ha->iobase) {
1822                 qla_printk(KERN_ERR, ha,
1823                     "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1824
1825                 goto iospace_error_exit;
1826         }
1827
1828         /* Determine queue resources */
1829         ha->max_req_queues = ha->max_rsp_queues = 1;
1830         if ((ql2xmaxqueues <= 1 && !ql2xmultique_tag) ||
1831                 (ql2xmaxqueues > 1 && ql2xmultique_tag) ||
1832                 (!IS_QLA25XX(ha) && !IS_QLA81XX(ha)))
1833                 goto mqiobase_exit;
1834
1835         ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 3),
1836                         pci_resource_len(ha->pdev, 3));
1837         if (ha->mqiobase) {
1838                 /* Read MSIX vector size of the board */
1839                 pci_read_config_word(ha->pdev, QLA_PCI_MSIX_CONTROL, &msix);
1840                 ha->msix_count = msix;
1841                 /* Max queues are bounded by available msix vectors */
1842                 /* queue 0 uses two msix vectors */
1843                 if (ql2xmultique_tag) {
1844                         cpus = num_online_cpus();
1845                         ha->max_rsp_queues = (ha->msix_count - 1 > cpus) ?
1846                                 (cpus + 1) : (ha->msix_count - 1);
1847                         ha->max_req_queues = 2;
1848                 } else if (ql2xmaxqueues > 1) {
1849                         ha->max_req_queues = ql2xmaxqueues > QLA_MQ_SIZE ?
1850                                                 QLA_MQ_SIZE : ql2xmaxqueues;
1851                         DEBUG2(qla_printk(KERN_INFO, ha, "QoS mode set, max no"
1852                         " of request queues:%d\n", ha->max_req_queues));
1853                 }
1854                 qla_printk(KERN_INFO, ha,
1855                         "MSI-X vector count: %d\n", msix);
1856         } else
1857                 qla_printk(KERN_INFO, ha, "BAR 3 not enabled\n");
1858
1859 mqiobase_exit:
1860         ha->msix_count = ha->max_rsp_queues + 1;
1861         return (0);
1862
1863 iospace_error_exit:
1864         return (-ENOMEM);
1865 }
1866
1867 static void
1868 qla2xxx_scan_start(struct Scsi_Host *shost)
1869 {
1870         scsi_qla_host_t *vha = shost_priv(shost);
1871
1872         if (vha->hw->flags.running_gold_fw)
1873                 return;
1874
1875         set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1876         set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1877         set_bit(RSCN_UPDATE, &vha->dpc_flags);
1878         set_bit(NPIV_CONFIG_NEEDED, &vha->dpc_flags);
1879 }
1880
1881 static int
1882 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1883 {
1884         scsi_qla_host_t *vha = shost_priv(shost);
1885
1886         if (!vha->host)
1887                 return 1;
1888         if (time > vha->hw->loop_reset_delay * HZ)
1889                 return 1;
1890
1891         return atomic_read(&vha->loop_state) == LOOP_READY;
1892 }
1893
1894 /*
1895  * PCI driver interface
1896  */
1897 static int __devinit
1898 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1899 {
1900         int     ret = -ENODEV;
1901         struct Scsi_Host *host;
1902         scsi_qla_host_t *base_vha = NULL;
1903         struct qla_hw_data *ha;
1904         char pci_info[30];
1905         char fw_str[30];
1906         struct scsi_host_template *sht;
1907         int bars, max_id, mem_only = 0;
1908         uint16_t req_length = 0, rsp_length = 0;
1909         struct req_que *req = NULL;
1910         struct rsp_que *rsp = NULL;
1911
1912         bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
1913         sht = &qla2xxx_driver_template;
1914         if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1915             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1916             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8432 ||
1917             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1918             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
1919             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532 ||
1920             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8001 ||
1921             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8021) {
1922                 bars = pci_select_bars(pdev, IORESOURCE_MEM);
1923                 mem_only = 1;
1924         }
1925
1926         if (mem_only) {
1927                 if (pci_enable_device_mem(pdev))
1928                         goto probe_out;
1929         } else {
1930                 if (pci_enable_device(pdev))
1931                         goto probe_out;
1932         }
1933
1934         /* This may fail but that's ok */
1935         pci_enable_pcie_error_reporting(pdev);
1936
1937         ha = kzalloc(sizeof(struct qla_hw_data), GFP_KERNEL);
1938         if (!ha) {
1939                 DEBUG(printk("Unable to allocate memory for ha\n"));
1940                 goto probe_out;
1941         }
1942         ha->pdev = pdev;
1943
1944         /* Clear our data area */
1945         ha->bars = bars;
1946         ha->mem_only = mem_only;
1947         spin_lock_init(&ha->hardware_lock);
1948         spin_lock_init(&ha->vport_slock);
1949
1950         /* Set ISP-type information. */
1951         qla2x00_set_isp_flags(ha);
1952
1953         /* Set EEH reset type to fundamental if required by hba */
1954         if ( IS_QLA24XX(ha) || IS_QLA25XX(ha) || IS_QLA81XX(ha)) {
1955                 pdev->needs_freset = 1;
1956         }
1957
1958         /* Configure PCI I/O space */
1959         ret = qla2x00_iospace_config(ha);
1960         if (ret)
1961                 goto probe_hw_failed;
1962
1963         qla_printk(KERN_INFO, ha,
1964             "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1965             ha->iobase);
1966
1967         ha->prev_topology = 0;
1968         ha->init_cb_size = sizeof(init_cb_t);
1969         ha->link_data_rate = PORT_SPEED_UNKNOWN;
1970         ha->optrom_size = OPTROM_SIZE_2300;
1971
1972         /* Assign ISP specific operations. */
1973         max_id = MAX_TARGETS_2200;
1974         if (IS_QLA2100(ha)) {
1975                 max_id = MAX_TARGETS_2100;
1976                 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1977                 req_length = REQUEST_ENTRY_CNT_2100;
1978                 rsp_length = RESPONSE_ENTRY_CNT_2100;
1979                 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
1980                 ha->gid_list_info_size = 4;
1981                 ha->flash_conf_off = ~0;
1982                 ha->flash_data_off = ~0;
1983                 ha->nvram_conf_off = ~0;
1984                 ha->nvram_data_off = ~0;
1985                 ha->isp_ops = &qla2100_isp_ops;
1986         } else if (IS_QLA2200(ha)) {
1987                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1988                 req_length = REQUEST_ENTRY_CNT_2200;
1989                 rsp_length = RESPONSE_ENTRY_CNT_2100;
1990                 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
1991                 ha->gid_list_info_size = 4;
1992                 ha->flash_conf_off = ~0;
1993                 ha->flash_data_off = ~0;
1994                 ha->nvram_conf_off = ~0;
1995                 ha->nvram_data_off = ~0;
1996                 ha->isp_ops = &qla2100_isp_ops;
1997         } else if (IS_QLA23XX(ha)) {
1998                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1999                 req_length = REQUEST_ENTRY_CNT_2200;
2000                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2001                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2002                 ha->gid_list_info_size = 6;
2003                 if (IS_QLA2322(ha) || IS_QLA6322(ha))
2004                         ha->optrom_size = OPTROM_SIZE_2322;
2005                 ha->flash_conf_off = ~0;
2006                 ha->flash_data_off = ~0;
2007                 ha->nvram_conf_off = ~0;
2008                 ha->nvram_data_off = ~0;
2009                 ha->isp_ops = &qla2300_isp_ops;
2010         } else if (IS_QLA24XX_TYPE(ha)) {
2011                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2012                 req_length = REQUEST_ENTRY_CNT_24XX;
2013                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2014                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2015                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
2016                 ha->gid_list_info_size = 8;
2017                 ha->optrom_size = OPTROM_SIZE_24XX;
2018                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA24XX;
2019                 ha->isp_ops = &qla24xx_isp_ops;
2020                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2021                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2022                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2023                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2024         } else if (IS_QLA25XX(ha)) {
2025                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2026                 req_length = REQUEST_ENTRY_CNT_24XX;
2027                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2028                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2029                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
2030                 ha->gid_list_info_size = 8;
2031                 ha->optrom_size = OPTROM_SIZE_25XX;
2032                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2033                 ha->isp_ops = &qla25xx_isp_ops;
2034                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2035                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2036                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2037                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2038         } else if (IS_QLA81XX(ha)) {
2039                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2040                 req_length = REQUEST_ENTRY_CNT_24XX;
2041                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2042                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2043                 ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2044                 ha->gid_list_info_size = 8;
2045                 ha->optrom_size = OPTROM_SIZE_81XX;
2046                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2047                 ha->isp_ops = &qla81xx_isp_ops;
2048                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
2049                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
2050                 ha->nvram_conf_off = ~0;
2051                 ha->nvram_data_off = ~0;
2052         } else if (IS_QLA82XX(ha)) {
2053                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2054                 req_length = REQUEST_ENTRY_CNT_82XX;
2055                 rsp_length = RESPONSE_ENTRY_CNT_82XX;
2056                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2057                 ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2058                 ha->gid_list_info_size = 8;
2059                 ha->optrom_size = OPTROM_SIZE_82XX;
2060                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2061                 ha->isp_ops = &qla82xx_isp_ops;
2062                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2063                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2064                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2065                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2066         }
2067
2068         mutex_init(&ha->vport_lock);
2069         init_completion(&ha->mbx_cmd_comp);
2070         complete(&ha->mbx_cmd_comp);
2071         init_completion(&ha->mbx_intr_comp);
2072         init_completion(&ha->dcbx_comp);
2073
2074         set_bit(0, (unsigned long *) ha->vp_idx_map);
2075
2076         qla2x00_config_dma_addressing(ha);
2077         ret = qla2x00_mem_alloc(ha, req_length, rsp_length, &req, &rsp);
2078         if (!ret) {
2079                 qla_printk(KERN_WARNING, ha,
2080                     "[ERROR] Failed to allocate memory for adapter\n");
2081
2082                 goto probe_hw_failed;
2083         }
2084
2085         req->max_q_depth = MAX_Q_DEPTH;
2086         if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
2087                 req->max_q_depth = ql2xmaxqdepth;
2088
2089
2090         base_vha = qla2x00_create_host(sht, ha);
2091         if (!base_vha) {
2092                 qla_printk(KERN_WARNING, ha,
2093                     "[ERROR] Failed to allocate memory for scsi_host\n");
2094
2095                 ret = -ENOMEM;
2096                 qla2x00_mem_free(ha);
2097                 qla2x00_free_req_que(ha, req);
2098                 qla2x00_free_rsp_que(ha, rsp);
2099                 goto probe_hw_failed;
2100         }
2101
2102         pci_set_drvdata(pdev, base_vha);
2103
2104         host = base_vha->host;
2105         base_vha->req = req;
2106         host->can_queue = req->length + 128;
2107         if (IS_QLA2XXX_MIDTYPE(ha))
2108                 base_vha->mgmt_svr_loop_id = 10 + base_vha->vp_idx;
2109         else
2110                 base_vha->mgmt_svr_loop_id = MANAGEMENT_SERVER +
2111                                                 base_vha->vp_idx;
2112
2113         /* Set the SG table size based on ISP type */
2114         if (!IS_FWI2_CAPABLE(ha)) {
2115                 if (IS_QLA2100(ha))
2116                         host->sg_tablesize = 32;
2117         } else {
2118                 if (!IS_QLA82XX(ha))
2119                         host->sg_tablesize = QLA_SG_ALL;
2120         }
2121
2122         host->max_id = max_id;
2123         host->this_id = 255;
2124         host->cmd_per_lun = 3;
2125         host->unique_id = host->host_no;
2126         if ((IS_QLA25XX(ha) || IS_QLA81XX(ha)) && ql2xenabledif)
2127                 host->max_cmd_len = 32;
2128         else
2129                 host->max_cmd_len = MAX_CMDSZ;
2130         host->max_channel = MAX_BUSES - 1;
2131         host->max_lun = MAX_LUNS;
2132         host->transportt = qla2xxx_transport_template;
2133         sht->vendor_id = (SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC);
2134
2135         /* Set up the irqs */
2136         ret = qla2x00_request_irqs(ha, rsp);
2137         if (ret)
2138                 goto probe_init_failed;
2139
2140         pci_save_state(pdev);
2141
2142         /* Alloc arrays of request and response ring ptrs */
2143 que_init:
2144         if (!qla2x00_alloc_queues(ha)) {
2145                 qla_printk(KERN_WARNING, ha,
2146                 "[ERROR] Failed to allocate memory for queue"
2147                 " pointers\n");
2148                 goto probe_init_failed;
2149         }
2150
2151         ha->rsp_q_map[0] = rsp;
2152         ha->req_q_map[0] = req;
2153         rsp->req = req;
2154         req->rsp = rsp;
2155         set_bit(0, ha->req_qid_map);
2156         set_bit(0, ha->rsp_qid_map);
2157         /* FWI2-capable only. */
2158         req->req_q_in = &ha->iobase->isp24.req_q_in;
2159         req->req_q_out = &ha->iobase->isp24.req_q_out;
2160         rsp->rsp_q_in = &ha->iobase->isp24.rsp_q_in;
2161         rsp->rsp_q_out = &ha->iobase->isp24.rsp_q_out;
2162         if (ha->mqenable) {
2163                 req->req_q_in = &ha->mqiobase->isp25mq.req_q_in;
2164                 req->req_q_out = &ha->mqiobase->isp25mq.req_q_out;
2165                 rsp->rsp_q_in = &ha->mqiobase->isp25mq.rsp_q_in;
2166                 rsp->rsp_q_out =  &ha->mqiobase->isp25mq.rsp_q_out;
2167         }
2168
2169         if (IS_QLA82XX(ha)) {
2170                 req->req_q_out = &ha->iobase->isp82.req_q_out[0];
2171                 rsp->rsp_q_in = &ha->iobase->isp82.rsp_q_in[0];
2172                 rsp->rsp_q_out = &ha->iobase->isp82.rsp_q_out[0];
2173         }
2174
2175         if (qla2x00_initialize_adapter(base_vha)) {
2176                 qla_printk(KERN_WARNING, ha,
2177                     "Failed to initialize adapter\n");
2178
2179                 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
2180                     "Adapter flags %x.\n",
2181                     base_vha->host_no, base_vha->device_flags));
2182
2183                 if (IS_QLA82XX(ha)) {
2184                         qla82xx_idc_lock(ha);
2185                         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
2186                                 QLA82XX_DEV_FAILED);
2187                         qla82xx_idc_unlock(ha);
2188                         qla_printk(KERN_INFO, ha, "HW State: FAILED\n");
2189                 }
2190
2191                 ret = -ENODEV;
2192                 goto probe_failed;
2193         }
2194
2195         if (ha->mqenable) {
2196                 if (qla25xx_setup_mode(base_vha)) {
2197                         qla_printk(KERN_WARNING, ha,
2198                                 "Can't create queues, falling back to single"
2199                                 " queue mode\n");
2200                         goto que_init;
2201                 }
2202         }
2203
2204         if (ha->flags.running_gold_fw)
2205                 goto skip_dpc;
2206
2207         /*
2208          * Startup the kernel thread for this host adapter
2209          */
2210         ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
2211                         "%s_dpc", base_vha->host_str);
2212         if (IS_ERR(ha->dpc_thread)) {
2213                 qla_printk(KERN_WARNING, ha,
2214                     "Unable to start DPC thread!\n");
2215                 ret = PTR_ERR(ha->dpc_thread);
2216                 goto probe_failed;
2217         }
2218
2219 skip_dpc:
2220         list_add_tail(&base_vha->list, &ha->vp_list);
2221         base_vha->host->irq = ha->pdev->irq;
2222
2223         /* Initialized the timer */
2224         qla2x00_start_timer(base_vha, qla2x00_timer, WATCH_INTERVAL);
2225
2226         DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
2227             base_vha->host_no, ha));
2228
2229         if ((IS_QLA25XX(ha) || IS_QLA81XX(ha)) && ql2xenabledif) {
2230                 if (ha->fw_attributes & BIT_4) {
2231                         base_vha->flags.difdix_supported = 1;
2232                         DEBUG18(qla_printk(KERN_INFO, ha,
2233                             "Registering for DIF/DIX type 1 and 3"
2234                             " protection.\n"));
2235                         scsi_host_set_prot(host,
2236                             SHOST_DIF_TYPE1_PROTECTION
2237                             | SHOST_DIF_TYPE2_PROTECTION
2238                             | SHOST_DIF_TYPE3_PROTECTION
2239                             | SHOST_DIX_TYPE1_PROTECTION
2240                             | SHOST_DIX_TYPE2_PROTECTION
2241                             | SHOST_DIX_TYPE3_PROTECTION);
2242                         scsi_host_set_guard(host, SHOST_DIX_GUARD_CRC);
2243                 } else
2244                         base_vha->flags.difdix_supported = 0;
2245         }
2246
2247         ha->isp_ops->enable_intrs(ha);
2248
2249         ret = scsi_add_host(host, &pdev->dev);
2250         if (ret)
2251                 goto probe_failed;
2252
2253         base_vha->flags.init_done = 1;
2254         base_vha->flags.online = 1;
2255
2256         scsi_scan_host(host);
2257
2258         qla2x00_alloc_sysfs_attr(base_vha);
2259
2260         qla2x00_init_host_attr(base_vha);
2261
2262         qla2x00_dfs_setup(base_vha);
2263
2264         qla_printk(KERN_INFO, ha, "\n"
2265             " QLogic Fibre Channel HBA Driver: %s\n"
2266             "  QLogic %s - %s\n"
2267             "  ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
2268             qla2x00_version_str, ha->model_number,
2269             ha->model_desc ? ha->model_desc : "", pdev->device,
2270             ha->isp_ops->pci_info_str(base_vha, pci_info), pci_name(pdev),
2271             ha->flags.enable_64bit_addressing ? '+' : '-', base_vha->host_no,
2272             ha->isp_ops->fw_version_str(base_vha, fw_str));
2273
2274         return 0;
2275
2276 probe_init_failed:
2277         qla2x00_free_req_que(ha, req);
2278         qla2x00_free_rsp_que(ha, rsp);
2279         ha->max_req_queues = ha->max_rsp_queues = 0;
2280
2281 probe_failed:
2282         if (base_vha->timer_active)
2283                 qla2x00_stop_timer(base_vha);
2284         base_vha->flags.online = 0;
2285         if (ha->dpc_thread) {
2286                 struct task_struct *t = ha->dpc_thread;
2287
2288                 ha->dpc_thread = NULL;
2289                 kthread_stop(t);
2290         }
2291
2292         qla2x00_free_device(base_vha);
2293
2294         scsi_host_put(base_vha->host);
2295
2296 probe_hw_failed:
2297         if (IS_QLA82XX(ha)) {
2298                 qla82xx_idc_lock(ha);
2299                 qla82xx_clear_drv_active(ha);
2300                 qla82xx_idc_unlock(ha);
2301                 iounmap((device_reg_t __iomem *)ha->nx_pcibase);
2302                 if (!ql2xdbwr)
2303                         iounmap((device_reg_t __iomem *)ha->nxdb_wr_ptr);
2304         } else {
2305                 if (ha->iobase)
2306                         iounmap(ha->iobase);
2307         }
2308         pci_release_selected_regions(ha->pdev, ha->bars);
2309         kfree(ha);
2310         ha = NULL;
2311
2312 probe_out:
2313         pci_disable_device(pdev);
2314         return ret;
2315 }
2316
2317 static void
2318 qla2x00_shutdown(struct pci_dev *pdev)
2319 {
2320         scsi_qla_host_t *vha;
2321         struct qla_hw_data  *ha;
2322
2323         vha = pci_get_drvdata(pdev);
2324         ha = vha->hw;
2325
2326         /* Turn-off FCE trace */
2327         if (ha->flags.fce_enabled) {
2328                 qla2x00_disable_fce_trace(vha, NULL, NULL);
2329                 ha->flags.fce_enabled = 0;
2330         }
2331
2332         /* Turn-off EFT trace */
2333         if (ha->eft)
2334                 qla2x00_disable_eft_trace(vha);
2335
2336         /* Stop currently executing firmware. */
2337         qla2x00_try_to_stop_firmware(vha);
2338
2339         /* Turn adapter off line */
2340         vha->flags.online = 0;
2341
2342         /* turn-off interrupts on the card */
2343         if (ha->interrupts_on) {
2344                 vha->flags.init_done = 0;
2345                 ha->isp_ops->disable_intrs(ha);
2346         }
2347
2348         qla2x00_free_irqs(vha);
2349
2350         qla2x00_free_fw_dump(ha);
2351 }
2352
2353 static void
2354 qla2x00_remove_one(struct pci_dev *pdev)
2355 {
2356         scsi_qla_host_t *base_vha, *vha;
2357         struct qla_hw_data  *ha;
2358         unsigned long flags;
2359
2360         base_vha = pci_get_drvdata(pdev);
2361         ha = base_vha->hw;
2362
2363         spin_lock_irqsave(&ha->vport_slock, flags);
2364         list_for_each_entry(vha, &ha->vp_list, list) {
2365                 atomic_inc(&vha->vref_count);
2366
2367                 if (vha->fc_vport) {
2368                         spin_unlock_irqrestore(&ha->vport_slock, flags);
2369
2370                         fc_vport_terminate(vha->fc_vport);
2371
2372                         spin_lock_irqsave(&ha->vport_slock, flags);
2373                 }
2374
2375                 atomic_dec(&vha->vref_count);
2376         }
2377         spin_unlock_irqrestore(&ha->vport_slock, flags);
2378
2379         set_bit(UNLOADING, &base_vha->dpc_flags);
2380
2381         qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
2382
2383         qla2x00_dfs_remove(base_vha);
2384
2385         qla84xx_put_chip(base_vha);
2386
2387         /* Disable timer */
2388         if (base_vha->timer_active)
2389                 qla2x00_stop_timer(base_vha);
2390
2391         base_vha->flags.online = 0;
2392
2393         /* Flush the work queue and remove it */
2394         if (ha->wq) {
2395                 flush_workqueue(ha->wq);
2396                 destroy_workqueue(ha->wq);
2397                 ha->wq = NULL;
2398         }
2399
2400         /* Kill the kernel thread for this host */
2401         if (ha->dpc_thread) {
2402                 struct task_struct *t = ha->dpc_thread;
2403
2404                 /*
2405                  * qla2xxx_wake_dpc checks for ->dpc_thread
2406                  * so we need to zero it out.
2407                  */
2408                 ha->dpc_thread = NULL;
2409                 kthread_stop(t);
2410         }
2411
2412         qla2x00_free_sysfs_attr(base_vha);
2413
2414         fc_remove_host(base_vha->host);
2415
2416         scsi_remove_host(base_vha->host);
2417
2418         qla2x00_free_device(base_vha);
2419
2420         scsi_host_put(base_vha->host);
2421
2422         if (IS_QLA82XX(ha)) {
2423                 qla82xx_idc_lock(ha);
2424                 qla82xx_clear_drv_active(ha);
2425                 qla82xx_idc_unlock(ha);
2426
2427                 iounmap((device_reg_t __iomem *)ha->nx_pcibase);
2428                 if (!ql2xdbwr)
2429                         iounmap((device_reg_t __iomem *)ha->nxdb_wr_ptr);
2430         } else {
2431                 if (ha->iobase)
2432                         iounmap(ha->iobase);
2433
2434                 if (ha->mqiobase)
2435                         iounmap(ha->mqiobase);
2436         }
2437
2438         pci_release_selected_regions(ha->pdev, ha->bars);
2439         kfree(ha);
2440         ha = NULL;
2441
2442         pci_disable_pcie_error_reporting(pdev);
2443
2444         pci_disable_device(pdev);
2445         pci_set_drvdata(pdev, NULL);
2446 }
2447
2448 static void
2449 qla2x00_free_device(scsi_qla_host_t *vha)
2450 {
2451         struct qla_hw_data *ha = vha->hw;
2452
2453         qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
2454
2455         /* Disable timer */
2456         if (vha->timer_active)
2457                 qla2x00_stop_timer(vha);
2458
2459         /* Kill the kernel thread for this host */
2460         if (ha->dpc_thread) {
2461                 struct task_struct *t = ha->dpc_thread;
2462
2463                 /*
2464                  * qla2xxx_wake_dpc checks for ->dpc_thread
2465                  * so we need to zero it out.
2466                  */
2467                 ha->dpc_thread = NULL;
2468                 kthread_stop(t);
2469         }
2470
2471         qla25xx_delete_queues(vha);
2472
2473         if (ha->flags.fce_enabled)
2474                 qla2x00_disable_fce_trace(vha, NULL, NULL);
2475
2476         if (ha->eft)
2477                 qla2x00_disable_eft_trace(vha);
2478
2479         /* Stop currently executing firmware. */
2480         qla2x00_try_to_stop_firmware(vha);
2481
2482         vha->flags.online = 0;
2483
2484         /* turn-off interrupts on the card */
2485         if (ha->interrupts_on) {
2486                 vha->flags.init_done = 0;
2487                 ha->isp_ops->disable_intrs(ha);
2488         }
2489
2490         qla2x00_free_irqs(vha);
2491
2492         qla2x00_free_fcports(vha);
2493
2494         qla2x00_mem_free(ha);
2495
2496         qla2x00_free_queues(ha);
2497 }
2498
2499 void qla2x00_free_fcports(struct scsi_qla_host *vha)
2500 {
2501         fc_port_t *fcport, *tfcport;
2502
2503         list_for_each_entry_safe(fcport, tfcport, &vha->vp_fcports, list) {
2504                 list_del(&fcport->list);
2505                 kfree(fcport);
2506                 fcport = NULL;
2507         }
2508 }
2509
2510 static inline void
2511 qla2x00_schedule_rport_del(struct scsi_qla_host *vha, fc_port_t *fcport,
2512     int defer)
2513 {
2514         struct fc_rport *rport;
2515         scsi_qla_host_t *base_vha;
2516         unsigned long flags;
2517
2518         if (!fcport->rport)
2519                 return;
2520
2521         rport = fcport->rport;
2522         if (defer) {
2523                 base_vha = pci_get_drvdata(vha->hw->pdev);
2524                 spin_lock_irqsave(vha->host->host_lock, flags);
2525                 fcport->drport = rport;
2526                 spin_unlock_irqrestore(vha->host->host_lock, flags);
2527                 set_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
2528                 qla2xxx_wake_dpc(base_vha);
2529         } else
2530                 fc_remote_port_delete(rport);
2531 }
2532
2533 /*
2534  * qla2x00_mark_device_lost Updates fcport state when device goes offline.
2535  *
2536  * Input: ha = adapter block pointer.  fcport = port structure pointer.
2537  *
2538  * Return: None.
2539  *
2540  * Context:
2541  */
2542 void qla2x00_mark_device_lost(scsi_qla_host_t *vha, fc_port_t *fcport,
2543     int do_login, int defer)
2544 {
2545         if (atomic_read(&fcport->state) == FCS_ONLINE &&
2546             vha->vp_idx == fcport->vp_idx) {
2547                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2548                 qla2x00_schedule_rport_del(vha, fcport, defer);
2549         }
2550         /*
2551          * We may need to retry the login, so don't change the state of the
2552          * port but do the retries.
2553          */
2554         if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
2555                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2556
2557         if (!do_login)
2558                 return;
2559
2560         if (fcport->login_retry == 0) {
2561                 fcport->login_retry = vha->hw->login_retry_count;
2562                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2563
2564                 DEBUG(printk("scsi(%ld): Port login retry: "
2565                     "%02x%02x%02x%02x%02x%02x%02x%02x, "
2566                     "id = 0x%04x retry cnt=%d\n",
2567                     vha->host_no,
2568                     fcport->port_name[0],
2569                     fcport->port_name[1],
2570                     fcport->port_name[2],
2571                     fcport->port_name[3],
2572                     fcport->port_name[4],
2573                     fcport->port_name[5],
2574                     fcport->port_name[6],
2575                     fcport->port_name[7],
2576                     fcport->loop_id,
2577                     fcport->login_retry));
2578         }
2579 }
2580
2581 /*
2582  * qla2x00_mark_all_devices_lost
2583  *      Updates fcport state when device goes offline.
2584  *
2585  * Input:
2586  *      ha = adapter block pointer.
2587  *      fcport = port structure pointer.
2588  *
2589  * Return:
2590  *      None.
2591  *
2592  * Context:
2593  */
2594 void
2595 qla2x00_mark_all_devices_lost(scsi_qla_host_t *vha, int defer)
2596 {
2597         fc_port_t *fcport;
2598
2599         list_for_each_entry(fcport, &vha->vp_fcports, list) {
2600                 if (vha->vp_idx != 0 && vha->vp_idx != fcport->vp_idx)
2601                         continue;
2602
2603                 /*
2604                  * No point in marking the device as lost, if the device is
2605                  * already DEAD.
2606                  */
2607                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
2608                         continue;
2609                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
2610                         atomic_set(&fcport->state, FCS_DEVICE_LOST);
2611                         if (defer)
2612                                 qla2x00_schedule_rport_del(vha, fcport, defer);
2613                         else if (vha->vp_idx == fcport->vp_idx)
2614                                 qla2x00_schedule_rport_del(vha, fcport, defer);
2615                 }
2616         }
2617 }
2618
2619 /*
2620 * qla2x00_mem_alloc
2621 *      Allocates adapter memory.
2622 *
2623 * Returns:
2624 *      0  = success.
2625 *      !0  = failure.
2626 */
2627 static int
2628 qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
2629         struct req_que **req, struct rsp_que **rsp)
2630 {
2631         char    name[16];
2632
2633         ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
2634                 &ha->init_cb_dma, GFP_KERNEL);
2635         if (!ha->init_cb)
2636                 goto fail;
2637
2638         ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
2639                 &ha->gid_list_dma, GFP_KERNEL);
2640         if (!ha->gid_list)
2641                 goto fail_free_init_cb;
2642
2643         ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
2644         if (!ha->srb_mempool)
2645                 goto fail_free_gid_list;
2646
2647         if (IS_QLA82XX(ha)) {
2648                 /* Allocate cache for CT6 Ctx. */
2649                 if (!ctx_cachep) {
2650                         ctx_cachep = kmem_cache_create("qla2xxx_ctx",
2651                                 sizeof(struct ct6_dsd), 0,
2652                                 SLAB_HWCACHE_ALIGN, NULL);
2653                         if (!ctx_cachep)
2654                                 goto fail_free_gid_list;
2655                 }
2656                 ha->ctx_mempool = mempool_create_slab_pool(SRB_MIN_REQ,
2657                         ctx_cachep);
2658                 if (!ha->ctx_mempool)
2659                         goto fail_free_srb_mempool;
2660         }
2661
2662         /* Get memory for cached NVRAM */
2663         ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
2664         if (!ha->nvram)
2665                 goto fail_free_ctx_mempool;
2666
2667         snprintf(name, sizeof(name), "%s_%d", QLA2XXX_DRIVER_NAME,
2668                 ha->pdev->device);
2669         ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2670                 DMA_POOL_SIZE, 8, 0);
2671         if (!ha->s_dma_pool)
2672                 goto fail_free_nvram;
2673
2674         if (IS_QLA82XX(ha) || ql2xenabledif) {
2675                 ha->dl_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2676                         DSD_LIST_DMA_POOL_SIZE, 8, 0);
2677                 if (!ha->dl_dma_pool) {
2678                         qla_printk(KERN_WARNING, ha,
2679                             "Memory Allocation failed - dl_dma_pool\n");
2680                         goto fail_s_dma_pool;
2681                 }
2682
2683                 ha->fcp_cmnd_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2684                         FCP_CMND_DMA_POOL_SIZE, 8, 0);
2685                 if (!ha->fcp_cmnd_dma_pool) {
2686                         qla_printk(KERN_WARNING, ha,
2687                             "Memory Allocation failed - fcp_cmnd_dma_pool\n");
2688                         goto fail_dl_dma_pool;
2689                 }
2690         }
2691
2692         /* Allocate memory for SNS commands */
2693         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2694         /* Get consistent memory allocated for SNS commands */
2695                 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
2696                 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
2697                 if (!ha->sns_cmd)
2698                         goto fail_dma_pool;
2699         } else {
2700         /* Get consistent memory allocated for MS IOCB */
2701                 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2702                         &ha->ms_iocb_dma);
2703                 if (!ha->ms_iocb)
2704                         goto fail_dma_pool;
2705         /* Get consistent memory allocated for CT SNS commands */
2706                 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2707                         sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
2708                 if (!ha->ct_sns)
2709                         goto fail_free_ms_iocb;
2710         }
2711
2712         /* Allocate memory for request ring */
2713         *req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
2714         if (!*req) {
2715                 DEBUG(printk("Unable to allocate memory for req\n"));
2716                 goto fail_req;
2717         }
2718         (*req)->length = req_len;
2719         (*req)->ring = dma_alloc_coherent(&ha->pdev->dev,
2720                 ((*req)->length + 1) * sizeof(request_t),
2721                 &(*req)->dma, GFP_KERNEL);
2722         if (!(*req)->ring) {
2723                 DEBUG(printk("Unable to allocate memory for req_ring\n"));
2724                 goto fail_req_ring;
2725         }
2726         /* Allocate memory for response ring */
2727         *rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
2728         if (!*rsp) {
2729                 qla_printk(KERN_WARNING, ha,
2730                         "Unable to allocate memory for rsp\n");
2731                 goto fail_rsp;
2732         }
2733         (*rsp)->hw = ha;
2734         (*rsp)->length = rsp_len;
2735         (*rsp)->ring = dma_alloc_coherent(&ha->pdev->dev,
2736                 ((*rsp)->length + 1) * sizeof(response_t),
2737                 &(*rsp)->dma, GFP_KERNEL);
2738         if (!(*rsp)->ring) {
2739                 qla_printk(KERN_WARNING, ha,
2740                         "Unable to allocate memory for rsp_ring\n");
2741                 goto fail_rsp_ring;
2742         }
2743         (*req)->rsp = *rsp;
2744         (*rsp)->req = *req;
2745         /* Allocate memory for NVRAM data for vports */
2746         if (ha->nvram_npiv_size) {
2747                 ha->npiv_info = kzalloc(sizeof(struct qla_npiv_entry) *
2748                                         ha->nvram_npiv_size, GFP_KERNEL);
2749                 if (!ha->npiv_info) {
2750                         qla_printk(KERN_WARNING, ha,
2751                                 "Unable to allocate memory for npiv info\n");
2752                         goto fail_npiv_info;
2753                 }
2754         } else
2755                 ha->npiv_info = NULL;
2756
2757         /* Get consistent memory allocated for EX-INIT-CB. */
2758         if (IS_QLA8XXX_TYPE(ha)) {
2759                 ha->ex_init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2760                     &ha->ex_init_cb_dma);
2761                 if (!ha->ex_init_cb)
2762                         goto fail_ex_init_cb;
2763         }
2764
2765         INIT_LIST_HEAD(&ha->gbl_dsd_list);
2766
2767         /* Get consistent memory allocated for Async Port-Database. */
2768         if (!IS_FWI2_CAPABLE(ha)) {
2769                 ha->async_pd = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2770                         &ha->async_pd_dma);
2771                 if (!ha->async_pd)
2772                         goto fail_async_pd;
2773         }
2774
2775         INIT_LIST_HEAD(&ha->vp_list);
2776         return 1;
2777
2778 fail_async_pd:
2779         dma_pool_free(ha->s_dma_pool, ha->ex_init_cb, ha->ex_init_cb_dma);
2780 fail_ex_init_cb:
2781         kfree(ha->npiv_info);
2782 fail_npiv_info:
2783         dma_free_coherent(&ha->pdev->dev, ((*rsp)->length + 1) *
2784                 sizeof(response_t), (*rsp)->ring, (*rsp)->dma);
2785         (*rsp)->ring = NULL;
2786         (*rsp)->dma = 0;
2787 fail_rsp_ring:
2788         kfree(*rsp);
2789 fail_rsp:
2790         dma_free_coherent(&ha->pdev->dev, ((*req)->length + 1) *
2791                 sizeof(request_t), (*req)->ring, (*req)->dma);
2792         (*req)->ring = NULL;
2793         (*req)->dma = 0;
2794 fail_req_ring:
2795         kfree(*req);
2796 fail_req:
2797         dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2798                 ha->ct_sns, ha->ct_sns_dma);
2799         ha->ct_sns = NULL;
2800         ha->ct_sns_dma = 0;
2801 fail_free_ms_iocb:
2802         dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2803         ha->ms_iocb = NULL;
2804         ha->ms_iocb_dma = 0;
2805 fail_dma_pool:
2806         if (IS_QLA82XX(ha) || ql2xenabledif) {
2807                 dma_pool_destroy(ha->fcp_cmnd_dma_pool);
2808                 ha->fcp_cmnd_dma_pool = NULL;
2809         }
2810 fail_dl_dma_pool:
2811         if (IS_QLA82XX(ha) || ql2xenabledif) {
2812                 dma_pool_destroy(ha->dl_dma_pool);
2813                 ha->dl_dma_pool = NULL;
2814         }
2815 fail_s_dma_pool:
2816         dma_pool_destroy(ha->s_dma_pool);
2817         ha->s_dma_pool = NULL;
2818 fail_free_nvram:
2819         kfree(ha->nvram);
2820         ha->nvram = NULL;
2821 fail_free_ctx_mempool:
2822         mempool_destroy(ha->ctx_mempool);
2823         ha->ctx_mempool = NULL;
2824 fail_free_srb_mempool:
2825         mempool_destroy(ha->srb_mempool);
2826         ha->srb_mempool = NULL;
2827 fail_free_gid_list:
2828         dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2829         ha->gid_list_dma);
2830         ha->gid_list = NULL;
2831         ha->gid_list_dma = 0;
2832 fail_free_init_cb:
2833         dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
2834         ha->init_cb_dma);
2835         ha->init_cb = NULL;
2836         ha->init_cb_dma = 0;
2837 fail:
2838         DEBUG(printk("%s: Memory allocation failure\n", __func__));
2839         return -ENOMEM;
2840 }
2841
2842 /*
2843 * qla2x00_free_fw_dump
2844 *       Frees fw dump stuff.
2845 *
2846 * Input:
2847 *       ha = adapter block pointer.
2848 */
2849 static void
2850 qla2x00_free_fw_dump(struct qla_hw_data *ha)
2851 {
2852         if (ha->fce)
2853                 dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
2854                     ha->fce_dma);
2855
2856         if (ha->fw_dump) {
2857                 if (ha->eft)
2858                         dma_free_coherent(&ha->pdev->dev,
2859                             ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2860                 vfree(ha->fw_dump);
2861         }
2862         ha->fce = NULL;
2863         ha->fce_dma = 0;
2864         ha->eft = NULL;
2865         ha->eft_dma = 0;
2866         ha->fw_dump = NULL;
2867         ha->fw_dumped = 0;
2868         ha->fw_dump_reading = 0;
2869 }
2870
2871 /*
2872 * qla2x00_mem_free
2873 *      Frees all adapter allocated memory.
2874 *
2875 * Input:
2876 *      ha = adapter block pointer.
2877 */
2878 static void
2879 qla2x00_mem_free(struct qla_hw_data *ha)
2880 {
2881         qla2x00_free_fw_dump(ha);
2882
2883         if (ha->srb_mempool)
2884                 mempool_destroy(ha->srb_mempool);
2885
2886         if (ha->dcbx_tlv)
2887                 dma_free_coherent(&ha->pdev->dev, DCBX_TLV_DATA_SIZE,
2888                     ha->dcbx_tlv, ha->dcbx_tlv_dma);
2889
2890         if (ha->xgmac_data)
2891                 dma_free_coherent(&ha->pdev->dev, XGMAC_DATA_SIZE,
2892                     ha->xgmac_data, ha->xgmac_data_dma);
2893
2894         if (ha->sns_cmd)
2895                 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2896                 ha->sns_cmd, ha->sns_cmd_dma);
2897
2898         if (ha->ct_sns)
2899                 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2900                 ha->ct_sns, ha->ct_sns_dma);
2901
2902         if (ha->sfp_data)
2903                 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2904
2905         if (ha->edc_data)
2906                 dma_pool_free(ha->s_dma_pool, ha->edc_data, ha->edc_data_dma);
2907
2908         if (ha->ms_iocb)
2909                 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2910
2911         if (ha->ex_init_cb)
2912                 dma_pool_free(ha->s_dma_pool,
2913                         ha->ex_init_cb, ha->ex_init_cb_dma);
2914
2915         if (ha->async_pd)
2916                 dma_pool_free(ha->s_dma_pool, ha->async_pd, ha->async_pd_dma);
2917
2918         if (ha->s_dma_pool)
2919                 dma_pool_destroy(ha->s_dma_pool);
2920
2921         if (ha->gid_list)
2922                 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2923                 ha->gid_list_dma);
2924
2925         if (IS_QLA82XX(ha)) {
2926                 if (!list_empty(&ha->gbl_dsd_list)) {
2927                         struct dsd_dma *dsd_ptr, *tdsd_ptr;
2928
2929                         /* clean up allocated prev pool */
2930                         list_for_each_entry_safe(dsd_ptr,
2931                                 tdsd_ptr, &ha->gbl_dsd_list, list) {
2932                                 dma_pool_free(ha->dl_dma_pool,
2933                                 dsd_ptr->dsd_addr, dsd_ptr->dsd_list_dma);
2934                                 list_del(&dsd_ptr->list);
2935                                 kfree(dsd_ptr);
2936                         }
2937                 }
2938         }
2939
2940         if (ha->dl_dma_pool)
2941                 dma_pool_destroy(ha->dl_dma_pool);
2942
2943         if (ha->fcp_cmnd_dma_pool)
2944                 dma_pool_destroy(ha->fcp_cmnd_dma_pool);
2945
2946         if (ha->ctx_mempool)
2947                 mempool_destroy(ha->ctx_mempool);
2948
2949         if (ha->init_cb)
2950                 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
2951                         ha->init_cb, ha->init_cb_dma);
2952         vfree(ha->optrom_buffer);
2953         kfree(ha->nvram);
2954         kfree(ha->npiv_info);
2955
2956         ha->srb_mempool = NULL;
2957         ha->ctx_mempool = NULL;
2958         ha->sns_cmd = NULL;
2959         ha->sns_cmd_dma = 0;
2960         ha->ct_sns = NULL;
2961         ha->ct_sns_dma = 0;
2962         ha->ms_iocb = NULL;
2963         ha->ms_iocb_dma = 0;
2964         ha->init_cb = NULL;
2965         ha->init_cb_dma = 0;
2966         ha->ex_init_cb = NULL;
2967         ha->ex_init_cb_dma = 0;
2968         ha->async_pd = NULL;
2969         ha->async_pd_dma = 0;
2970
2971         ha->s_dma_pool = NULL;
2972         ha->dl_dma_pool = NULL;
2973         ha->fcp_cmnd_dma_pool = NULL;
2974
2975         ha->gid_list = NULL;
2976         ha->gid_list_dma = 0;
2977 }
2978
2979 struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht,
2980                                                 struct qla_hw_data *ha)
2981 {
2982         struct Scsi_Host *host;
2983         struct scsi_qla_host *vha = NULL;
2984
2985         host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
2986         if (host == NULL) {
2987                 printk(KERN_WARNING
2988                 "qla2xxx: Couldn't allocate host from scsi layer!\n");
2989                 goto fail;
2990         }
2991
2992         /* Clear our data area */
2993         vha = shost_priv(host);
2994         memset(vha, 0, sizeof(scsi_qla_host_t));
2995
2996         vha->host = host;
2997         vha->host_no = host->host_no;
2998         vha->hw = ha;
2999
3000         INIT_LIST_HEAD(&vha->vp_fcports);
3001         INIT_LIST_HEAD(&vha->work_list);
3002         INIT_LIST_HEAD(&vha->list);
3003
3004         spin_lock_init(&vha->work_lock);
3005
3006         sprintf(vha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, vha->host_no);
3007         return vha;
3008
3009 fail:
3010         return vha;
3011 }
3012
3013 static struct qla_work_evt *
3014 qla2x00_alloc_work(struct scsi_qla_host *vha, enum qla_work_type type)
3015 {
3016         struct qla_work_evt *e;
3017         uint8_t bail;
3018
3019         QLA_VHA_MARK_BUSY(vha, bail);
3020         if (bail)
3021                 return NULL;
3022
3023         e = kzalloc(sizeof(struct qla_work_evt), GFP_ATOMIC);
3024         if (!e) {
3025                 QLA_VHA_MARK_NOT_BUSY(vha);
3026                 return NULL;
3027         }
3028
3029         INIT_LIST_HEAD(&e->list);
3030         e->type = type;
3031         e->flags = QLA_EVT_FLAG_FREE;
3032         return e;
3033 }
3034
3035 static int
3036 qla2x00_post_work(struct scsi_qla_host *vha, struct qla_work_evt *e)
3037 {
3038         unsigned long flags;
3039
3040         spin_lock_irqsave(&vha->work_lock, flags);
3041         list_add_tail(&e->list, &vha->work_list);
3042         spin_unlock_irqrestore(&vha->work_lock, flags);
3043         qla2xxx_wake_dpc(vha);
3044
3045         return QLA_SUCCESS;
3046 }
3047
3048 int
3049 qla2x00_post_aen_work(struct scsi_qla_host *vha, enum fc_host_event_code code,
3050     u32 data)
3051 {
3052         struct qla_work_evt *e;
3053
3054         e = qla2x00_alloc_work(vha, QLA_EVT_AEN);
3055         if (!e)
3056                 return QLA_FUNCTION_FAILED;
3057
3058         e->u.aen.code = code;
3059         e->u.aen.data = data;
3060         return qla2x00_post_work(vha, e);
3061 }
3062
3063 int
3064 qla2x00_post_idc_ack_work(struct scsi_qla_host *vha, uint16_t *mb)
3065 {
3066         struct qla_work_evt *e;
3067
3068         e = qla2x00_alloc_work(vha, QLA_EVT_IDC_ACK);
3069         if (!e)
3070                 return QLA_FUNCTION_FAILED;
3071
3072         memcpy(e->u.idc_ack.mb, mb, QLA_IDC_ACK_REGS * sizeof(uint16_t));
3073         return qla2x00_post_work(vha, e);
3074 }
3075
3076 #define qla2x00_post_async_work(name, type)     \
3077 int qla2x00_post_async_##name##_work(           \
3078     struct scsi_qla_host *vha,                  \
3079     fc_port_t *fcport, uint16_t *data)          \
3080 {                                               \
3081         struct qla_work_evt *e;                 \
3082                                                 \
3083         e = qla2x00_alloc_work(vha, type);      \
3084         if (!e)                                 \
3085                 return QLA_FUNCTION_FAILED;     \
3086                                                 \
3087         e->u.logio.fcport = fcport;             \
3088         if (data) {                             \
3089                 e->u.logio.data[0] = data[0];   \
3090                 e->u.logio.data[1] = data[1];   \
3091         }                                       \
3092         return qla2x00_post_work(vha, e);       \
3093 }
3094
3095 qla2x00_post_async_work(login, QLA_EVT_ASYNC_LOGIN);
3096 qla2x00_post_async_work(login_done, QLA_EVT_ASYNC_LOGIN_DONE);
3097 qla2x00_post_async_work(logout, QLA_EVT_ASYNC_LOGOUT);
3098 qla2x00_post_async_work(logout_done, QLA_EVT_ASYNC_LOGOUT_DONE);
3099 qla2x00_post_async_work(adisc, QLA_EVT_ASYNC_ADISC);
3100 qla2x00_post_async_work(adisc_done, QLA_EVT_ASYNC_ADISC_DONE);
3101
3102 int
3103 qla2x00_post_uevent_work(struct scsi_qla_host *vha, u32 code)
3104 {
3105         struct qla_work_evt *e;
3106
3107         e = qla2x00_alloc_work(vha, QLA_EVT_UEVENT);
3108         if (!e)
3109                 return QLA_FUNCTION_FAILED;
3110
3111         e->u.uevent.code = code;
3112         return qla2x00_post_work(vha, e);
3113 }
3114
3115 static void
3116 qla2x00_uevent_emit(struct scsi_qla_host *vha, u32 code)
3117 {
3118         char event_string[40];
3119         char *envp[] = { event_string, NULL };
3120
3121         switch (code) {
3122         case QLA_UEVENT_CODE_FW_DUMP:
3123                 snprintf(event_string, sizeof(event_string), "FW_DUMP=%ld",
3124                     vha->host_no);
3125                 break;
3126         default:
3127                 /* do nothing */
3128                 break;
3129         }
3130         kobject_uevent_env(&vha->hw->pdev->dev.kobj, KOBJ_CHANGE, envp);
3131 }
3132
3133 void
3134 qla2x00_do_work(struct scsi_qla_host *vha)
3135 {
3136         struct qla_work_evt *e, *tmp;
3137         unsigned long flags;
3138         LIST_HEAD(work);
3139
3140         spin_lock_irqsave(&vha->work_lock, flags);
3141         list_splice_init(&vha->work_list, &work);
3142         spin_unlock_irqrestore(&vha->work_lock, flags);
3143
3144         list_for_each_entry_safe(e, tmp, &work, list) {
3145                 list_del_init(&e->list);
3146
3147                 switch (e->type) {
3148                 case QLA_EVT_AEN:
3149                         fc_host_post_event(vha->host, fc_get_event_number(),
3150                             e->u.aen.code, e->u.aen.data);
3151                         break;
3152                 case QLA_EVT_IDC_ACK:
3153                         qla81xx_idc_ack(vha, e->u.idc_ack.mb);
3154                         break;
3155                 case QLA_EVT_ASYNC_LOGIN:
3156                         qla2x00_async_login(vha, e->u.logio.fcport,
3157                             e->u.logio.data);
3158                         break;
3159                 case QLA_EVT_ASYNC_LOGIN_DONE:
3160                         qla2x00_async_login_done(vha, e->u.logio.fcport,
3161                             e->u.logio.data);
3162                         break;
3163                 case QLA_EVT_ASYNC_LOGOUT:
3164                         qla2x00_async_logout(vha, e->u.logio.fcport);
3165                         break;
3166                 case QLA_EVT_ASYNC_LOGOUT_DONE:
3167                         qla2x00_async_logout_done(vha, e->u.logio.fcport,
3168                             e->u.logio.data);
3169                         break;
3170                 case QLA_EVT_ASYNC_ADISC:
3171                         qla2x00_async_adisc(vha, e->u.logio.fcport,
3172                             e->u.logio.data);
3173                         break;
3174                 case QLA_EVT_ASYNC_ADISC_DONE:
3175                         qla2x00_async_adisc_done(vha, e->u.logio.fcport,
3176                             e->u.logio.data);
3177                         break;
3178                 case QLA_EVT_UEVENT:
3179                         qla2x00_uevent_emit(vha, e->u.uevent.code);
3180                         break;
3181                 }
3182                 if (e->flags & QLA_EVT_FLAG_FREE)
3183                         kfree(e);
3184
3185                 /* For each work completed decrement vha ref count */
3186                 QLA_VHA_MARK_NOT_BUSY(vha);
3187         }
3188 }
3189
3190 /* Relogins all the fcports of a vport
3191  * Context: dpc thread
3192  */
3193 void qla2x00_relogin(struct scsi_qla_host *vha)
3194 {
3195         fc_port_t       *fcport;
3196         int status;
3197         uint16_t        next_loopid = 0;
3198         struct qla_hw_data *ha = vha->hw;
3199         uint16_t data[2];
3200
3201         list_for_each_entry(fcport, &vha->vp_fcports, list) {
3202         /*
3203          * If the port is not ONLINE then try to login
3204          * to it if we haven't run out of retries.
3205          */
3206                 if (atomic_read(&fcport->state) != FCS_ONLINE &&
3207                     fcport->login_retry && !(fcport->flags & FCF_ASYNC_SENT)) {
3208                         fcport->login_retry--;
3209                         if (fcport->flags & FCF_FABRIC_DEVICE) {
3210                                 if (fcport->flags & FCF_FCP2_DEVICE)
3211                                         ha->isp_ops->fabric_logout(vha,
3212                                                         fcport->loop_id,
3213                                                         fcport->d_id.b.domain,
3214                                                         fcport->d_id.b.area,
3215                                                         fcport->d_id.b.al_pa);
3216
3217                                 if (IS_ALOGIO_CAPABLE(ha)) {
3218                                         fcport->flags |= FCF_ASYNC_SENT;
3219                                         data[0] = 0;
3220                                         data[1] = QLA_LOGIO_LOGIN_RETRIED;
3221                                         status = qla2x00_post_async_login_work(
3222                                             vha, fcport, data);
3223                                         if (status == QLA_SUCCESS)
3224                                                 continue;
3225                                         /* Attempt a retry. */
3226                                         status = 1;
3227                                 } else
3228                                         status = qla2x00_fabric_login(vha,
3229                                             fcport, &next_loopid);
3230                         } else
3231                                 status = qla2x00_local_device_login(vha,
3232                                                                 fcport);
3233
3234                         if (status == QLA_SUCCESS) {
3235                                 fcport->old_loop_id = fcport->loop_id;
3236
3237                                 DEBUG(printk("scsi(%ld): port login OK: logged "
3238                                 "in ID 0x%x\n", vha->host_no, fcport->loop_id));
3239
3240                                 qla2x00_update_fcport(vha, fcport);
3241
3242                         } else if (status == 1) {
3243                                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
3244                                 /* retry the login again */
3245                                 DEBUG(printk("scsi(%ld): Retrying"
3246                                 " %d login again loop_id 0x%x\n",
3247                                 vha->host_no, fcport->login_retry,
3248                                                 fcport->loop_id));
3249                         } else {
3250                                 fcport->login_retry = 0;
3251                         }
3252
3253                         if (fcport->login_retry == 0 && status != QLA_SUCCESS)
3254                                 fcport->loop_id = FC_NO_LOOP_ID;
3255                 }
3256                 if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
3257                         break;
3258         }
3259 }
3260
3261 /**************************************************************************
3262 * qla2x00_do_dpc
3263 *   This kernel thread is a task that is schedule by the interrupt handler
3264 *   to perform the background processing for interrupts.
3265 *
3266 * Notes:
3267 * This task always run in the context of a kernel thread.  It
3268 * is kick-off by the driver's detect code and starts up
3269 * up one per adapter. It immediately goes to sleep and waits for
3270 * some fibre event.  When either the interrupt handler or
3271 * the timer routine detects a event it will one of the task
3272 * bits then wake us up.
3273 **************************************************************************/
3274 static int
3275 qla2x00_do_dpc(void *data)
3276 {
3277         int             rval;
3278         scsi_qla_host_t *base_vha;
3279         struct qla_hw_data *ha;
3280
3281         ha = (struct qla_hw_data *)data;
3282         base_vha = pci_get_drvdata(ha->pdev);
3283
3284         set_user_nice(current, -20);
3285
3286         set_current_state(TASK_INTERRUPTIBLE);
3287         while (!kthread_should_stop()) {
3288                 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
3289
3290                 schedule();
3291                 __set_current_state(TASK_RUNNING);
3292
3293                 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
3294
3295                 /* Initialization not yet finished. Don't do anything yet. */
3296                 if (!base_vha->flags.init_done)
3297                         continue;
3298
3299                 if (ha->flags.eeh_busy) {
3300                         DEBUG17(qla_printk(KERN_WARNING, ha,
3301                             "qla2x00_do_dpc: dpc_flags: %lx\n",
3302                             base_vha->dpc_flags));
3303                         continue;
3304                 }
3305
3306                 DEBUG3(printk("scsi(%ld): DPC handler\n", base_vha->host_no));
3307
3308                 ha->dpc_active = 1;
3309
3310                 if (ha->flags.mbox_busy) {
3311                         ha->dpc_active = 0;
3312                         continue;
3313                 }
3314
3315                 qla2x00_do_work(base_vha);
3316
3317                 if (IS_QLA82XX(ha)) {
3318                         if (test_and_clear_bit(ISP_UNRECOVERABLE,
3319                                 &base_vha->dpc_flags)) {
3320                                 qla82xx_idc_lock(ha);
3321                                 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3322                                         QLA82XX_DEV_FAILED);
3323                                 qla82xx_idc_unlock(ha);
3324                                 qla_printk(KERN_INFO, ha,
3325                                         "HW State: FAILED\n");
3326                                 qla82xx_device_state_handler(base_vha);
3327                                 continue;
3328                         }
3329
3330                         if (test_and_clear_bit(FCOE_CTX_RESET_NEEDED,
3331                                 &base_vha->dpc_flags)) {
3332
3333                                 DEBUG(printk(KERN_INFO
3334                                         "scsi(%ld): dpc: sched "
3335                                         "qla82xx_fcoe_ctx_reset ha = %p\n",
3336                                         base_vha->host_no, ha));
3337                                 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
3338                                         &base_vha->dpc_flags))) {
3339                                         if (qla82xx_fcoe_ctx_reset(base_vha)) {
3340                                                 /* FCoE-ctx reset failed.
3341                                                  * Escalate to chip-reset
3342                                                  */
3343                                                 set_bit(ISP_ABORT_NEEDED,
3344                                                         &base_vha->dpc_flags);
3345                                         }
3346                                         clear_bit(ABORT_ISP_ACTIVE,
3347                                                 &base_vha->dpc_flags);
3348                                 }
3349
3350                                 DEBUG(printk("scsi(%ld): dpc:"
3351                                         " qla82xx_fcoe_ctx_reset end\n",
3352                                         base_vha->host_no));
3353                         }
3354                 }
3355
3356                 if (test_and_clear_bit(ISP_ABORT_NEEDED,
3357                                                 &base_vha->dpc_flags)) {
3358
3359                         DEBUG(printk("scsi(%ld): dpc: sched "
3360                             "qla2x00_abort_isp ha = %p\n",
3361                             base_vha->host_no, ha));
3362                         if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
3363                             &base_vha->dpc_flags))) {
3364
3365                                 if (ha->isp_ops->abort_isp(base_vha)) {
3366                                         /* failed. retry later */
3367                                         set_bit(ISP_ABORT_NEEDED,
3368                                             &base_vha->dpc_flags);
3369                                 }
3370                                 clear_bit(ABORT_ISP_ACTIVE,
3371                                                 &base_vha->dpc_flags);
3372                         }
3373
3374                         DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
3375                             base_vha->host_no));
3376                 }
3377
3378                 if (test_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags)) {
3379                         qla2x00_update_fcports(base_vha);
3380                         clear_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
3381                 }
3382
3383                 if (test_bit(ISP_QUIESCE_NEEDED, &base_vha->dpc_flags)) {
3384                         DEBUG(printk(KERN_INFO "scsi(%ld): dpc: sched "
3385                             "qla2x00_quiesce_needed ha = %p\n",
3386                             base_vha->host_no, ha));
3387                         qla82xx_device_state_handler(base_vha);
3388                         clear_bit(ISP_QUIESCE_NEEDED, &base_vha->dpc_flags);
3389                         if (!ha->flags.quiesce_owner) {
3390                                 qla2x00_perform_loop_resync(base_vha);
3391
3392                                 qla82xx_idc_lock(ha);
3393                                 qla82xx_clear_qsnt_ready(base_vha);
3394                                 qla82xx_idc_unlock(ha);
3395                         }
3396                 }
3397
3398                 if (test_and_clear_bit(RESET_MARKER_NEEDED,
3399                                                         &base_vha->dpc_flags) &&
3400                     (!(test_and_set_bit(RESET_ACTIVE, &base_vha->dpc_flags)))) {
3401
3402                         DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
3403                             base_vha->host_no));
3404
3405                         qla2x00_rst_aen(base_vha);
3406                         clear_bit(RESET_ACTIVE, &base_vha->dpc_flags);
3407                 }
3408
3409                 /* Retry each device up to login retry count */
3410                 if ((test_and_clear_bit(RELOGIN_NEEDED,
3411                                                 &base_vha->dpc_flags)) &&
3412                     !test_bit(LOOP_RESYNC_NEEDED, &base_vha->dpc_flags) &&
3413                     atomic_read(&base_vha->loop_state) != LOOP_DOWN) {
3414
3415                         DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
3416                                         base_vha->host_no));
3417                         qla2x00_relogin(base_vha);
3418
3419                         DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
3420                             base_vha->host_no));
3421                 }
3422
3423                 if (test_and_clear_bit(LOOP_RESYNC_NEEDED,
3424                                                         &base_vha->dpc_flags)) {
3425
3426                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
3427                                 base_vha->host_no));
3428
3429                         if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
3430                             &base_vha->dpc_flags))) {
3431
3432                                 rval = qla2x00_loop_resync(base_vha);
3433
3434                                 clear_bit(LOOP_RESYNC_ACTIVE,
3435                                                 &base_vha->dpc_flags);
3436                         }
3437
3438                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
3439                             base_vha->host_no));
3440                 }
3441
3442                 if (test_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags) &&
3443                     atomic_read(&base_vha->loop_state) == LOOP_READY) {
3444                         clear_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags);
3445                         qla2xxx_flash_npiv_conf(base_vha);
3446                 }
3447
3448                 if (!ha->interrupts_on)
3449                         ha->isp_ops->enable_intrs(ha);
3450
3451                 if (test_and_clear_bit(BEACON_BLINK_NEEDED,
3452                                         &base_vha->dpc_flags))
3453                         ha->isp_ops->beacon_blink(base_vha);
3454
3455                 qla2x00_do_dpc_all_vps(base_vha);
3456
3457                 ha->dpc_active = 0;
3458                 set_current_state(TASK_INTERRUPTIBLE);
3459         } /* End of while(1) */
3460         __set_current_state(TASK_RUNNING);
3461
3462         DEBUG(printk("scsi(%ld): DPC handler exiting\n", base_vha->host_no));
3463
3464         /*
3465          * Make sure that nobody tries to wake us up again.
3466          */
3467         ha->dpc_active = 0;
3468
3469         /* Cleanup any residual CTX SRBs. */
3470         qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
3471
3472         return 0;
3473 }
3474
3475 void
3476 qla2xxx_wake_dpc(struct scsi_qla_host *vha)
3477 {
3478         struct qla_hw_data *ha = vha->hw;
3479         struct task_struct *t = ha->dpc_thread;
3480
3481         if (!test_bit(UNLOADING, &vha->dpc_flags) && t)
3482                 wake_up_process(t);
3483 }
3484
3485 /*
3486 *  qla2x00_rst_aen
3487 *      Processes asynchronous reset.
3488 *
3489 * Input:
3490 *      ha  = adapter block pointer.
3491 */
3492 static void
3493 qla2x00_rst_aen(scsi_qla_host_t *vha)
3494 {
3495         if (vha->flags.online && !vha->flags.reset_active &&
3496             !atomic_read(&vha->loop_down_timer) &&
3497             !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) {
3498                 do {
3499                         clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
3500
3501                         /*
3502                          * Issue marker command only when we are going to start
3503                          * the I/O.
3504                          */
3505                         vha->marker_needed = 1;
3506                 } while (!atomic_read(&vha->loop_down_timer) &&
3507                     (test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags)));
3508         }
3509 }
3510
3511 static void
3512 qla2x00_sp_free_dma(srb_t *sp)
3513 {
3514         struct scsi_cmnd *cmd = sp->cmd;
3515         struct qla_hw_data *ha = sp->fcport->vha->hw;
3516
3517         if (sp->flags & SRB_DMA_VALID) {
3518                 scsi_dma_unmap(cmd);
3519                 sp->flags &= ~SRB_DMA_VALID;
3520         }
3521
3522         if (sp->flags & SRB_CRC_PROT_DMA_VALID) {
3523                 dma_unmap_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
3524                     scsi_prot_sg_count(cmd), cmd->sc_data_direction);
3525                 sp->flags &= ~SRB_CRC_PROT_DMA_VALID;
3526         }
3527
3528         if (sp->flags & SRB_CRC_CTX_DSD_VALID) {
3529                 /* List assured to be having elements */
3530                 qla2x00_clean_dsd_pool(ha, sp);
3531                 sp->flags &= ~SRB_CRC_CTX_DSD_VALID;
3532         }
3533
3534         if (sp->flags & SRB_CRC_CTX_DMA_VALID) {
3535                 dma_pool_free(ha->dl_dma_pool, sp->ctx,
3536                     ((struct crc_context *)sp->ctx)->crc_ctx_dma);
3537                 sp->flags &= ~SRB_CRC_CTX_DMA_VALID;
3538         }
3539
3540         CMD_SP(cmd) = NULL;
3541 }
3542
3543 static void
3544 qla2x00_sp_final_compl(struct qla_hw_data *ha, srb_t *sp)
3545 {
3546         struct scsi_cmnd *cmd = sp->cmd;
3547
3548         qla2x00_sp_free_dma(sp);
3549
3550         if (sp->flags & SRB_FCP_CMND_DMA_VALID) {
3551                 struct ct6_dsd *ctx = sp->ctx;
3552                 dma_pool_free(ha->fcp_cmnd_dma_pool, ctx->fcp_cmnd,
3553                         ctx->fcp_cmnd_dma);
3554                 list_splice(&ctx->dsd_list, &ha->gbl_dsd_list);
3555                 ha->gbl_dsd_inuse -= ctx->dsd_use_cnt;
3556                 ha->gbl_dsd_avail += ctx->dsd_use_cnt;
3557                 mempool_free(sp->ctx, ha->ctx_mempool);
3558                 sp->ctx = NULL;
3559         }
3560
3561         mempool_free(sp, ha->srb_mempool);
3562         cmd->scsi_done(cmd);
3563 }
3564
3565 void
3566 qla2x00_sp_compl(struct qla_hw_data *ha, srb_t *sp)
3567 {
3568         if (atomic_read(&sp->ref_count) == 0) {
3569                 DEBUG2(qla_printk(KERN_WARNING, ha,
3570                     "SP reference-count to ZERO -- sp=%p\n", sp));
3571                 DEBUG2(BUG());
3572                 return;
3573         }
3574         if (!atomic_dec_and_test(&sp->ref_count))
3575                 return;
3576         qla2x00_sp_final_compl(ha, sp);
3577 }
3578
3579 /**************************************************************************
3580 *   qla2x00_timer
3581 *
3582 * Description:
3583 *   One second timer
3584 *
3585 * Context: Interrupt
3586 ***************************************************************************/
3587 void
3588 qla2x00_timer(scsi_qla_host_t *vha)
3589 {
3590         unsigned long   cpu_flags = 0;
3591         int             start_dpc = 0;
3592         int             index;
3593         srb_t           *sp;
3594         uint16_t        w;
3595         struct qla_hw_data *ha = vha->hw;
3596         struct req_que *req;
3597
3598         if (ha->flags.eeh_busy) {
3599                 qla2x00_restart_timer(vha, WATCH_INTERVAL);
3600                 return;
3601         }
3602
3603         /* Hardware read to raise pending EEH errors during mailbox waits. */
3604         if (!pci_channel_offline(ha->pdev))
3605                 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
3606
3607         if (IS_QLA82XX(ha)) {
3608                 if (test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags))
3609                         start_dpc++;
3610                 qla82xx_watchdog(vha);
3611         }
3612
3613         /* Loop down handler. */
3614         if (atomic_read(&vha->loop_down_timer) > 0 &&
3615             !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
3616                 && vha->flags.online) {
3617
3618                 if (atomic_read(&vha->loop_down_timer) ==
3619                     vha->loop_down_abort_time) {
3620
3621                         DEBUG(printk("scsi(%ld): Loop Down - aborting the "
3622                             "queues before time expire\n",
3623                             vha->host_no));
3624
3625                         if (!IS_QLA2100(ha) && vha->link_down_timeout)
3626                                 atomic_set(&vha->loop_state, LOOP_DEAD);
3627
3628                         /*
3629                          * Schedule an ISP abort to return any FCP2-device
3630                          * commands.
3631                          */
3632                         /* NPIV - scan physical port only */
3633                         if (!vha->vp_idx) {
3634                                 spin_lock_irqsave(&ha->hardware_lock,
3635                                     cpu_flags);
3636                                 req = ha->req_q_map[0];
3637                                 for (index = 1;
3638                                     index < MAX_OUTSTANDING_COMMANDS;
3639                                     index++) {
3640                                         fc_port_t *sfcp;
3641
3642                                         sp = req->outstanding_cmds[index];
3643                                         if (!sp)
3644                                                 continue;
3645                                         if (sp->ctx && !IS_PROT_IO(sp))
3646                                                 continue;
3647                                         sfcp = sp->fcport;
3648                                         if (!(sfcp->flags & FCF_FCP2_DEVICE))
3649                                                 continue;
3650
3651                                         set_bit(ISP_ABORT_NEEDED,
3652                                                         &vha->dpc_flags);
3653                                         break;
3654                                 }
3655                                 spin_unlock_irqrestore(&ha->hardware_lock,
3656                                                                 cpu_flags);
3657                         }
3658                         start_dpc++;
3659                 }
3660
3661                 /* if the loop has been down for 4 minutes, reinit adapter */
3662                 if (atomic_dec_and_test(&vha->loop_down_timer) != 0) {
3663                         if (!(vha->device_flags & DFLG_NO_CABLE)) {
3664                                 DEBUG(printk("scsi(%ld): Loop down - "
3665                                     "aborting ISP.\n",
3666                                     vha->host_no));
3667                                 qla_printk(KERN_WARNING, ha,
3668                                     "Loop down - aborting ISP.\n");
3669
3670                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3671                         }
3672                 }
3673                 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
3674                     vha->host_no,
3675                     atomic_read(&vha->loop_down_timer)));
3676         }
3677
3678         /* Check if beacon LED needs to be blinked */
3679         if (ha->beacon_blink_led == 1) {
3680                 set_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags);
3681                 start_dpc++;
3682         }
3683
3684         /* Process any deferred work. */
3685         if (!list_empty(&vha->work_list))
3686                 start_dpc++;
3687
3688         /* Schedule the DPC routine if needed */
3689         if ((test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
3690             test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) ||
3691             test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags) ||
3692             start_dpc ||
3693             test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) ||
3694             test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags) ||
3695             test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags) ||
3696             test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) ||
3697             test_bit(VP_DPC_NEEDED, &vha->dpc_flags) ||
3698             test_bit(RELOGIN_NEEDED, &vha->dpc_flags)))
3699                 qla2xxx_wake_dpc(vha);
3700
3701         qla2x00_restart_timer(vha, WATCH_INTERVAL);
3702 }
3703
3704 /* Firmware interface routines. */
3705
3706 #define FW_BLOBS        8
3707 #define FW_ISP21XX      0
3708 #define FW_ISP22XX      1
3709 #define FW_ISP2300      2
3710 #define FW_ISP2322      3
3711 #define FW_ISP24XX      4
3712 #define FW_ISP25XX      5
3713 #define FW_ISP81XX      6
3714 #define FW_ISP82XX      7
3715
3716 #define FW_FILE_ISP21XX "ql2100_fw.bin"
3717 #define FW_FILE_ISP22XX "ql2200_fw.bin"
3718 #define FW_FILE_ISP2300 "ql2300_fw.bin"
3719 #define FW_FILE_ISP2322 "ql2322_fw.bin"
3720 #define FW_FILE_ISP24XX "ql2400_fw.bin"
3721 #define FW_FILE_ISP25XX "ql2500_fw.bin"
3722 #define FW_FILE_ISP81XX "ql8100_fw.bin"
3723 #define FW_FILE_ISP82XX "ql8200_fw.bin"
3724
3725 static DEFINE_MUTEX(qla_fw_lock);
3726
3727 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
3728         { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
3729         { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
3730         { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
3731         { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
3732         { .name = FW_FILE_ISP24XX, },
3733         { .name = FW_FILE_ISP25XX, },
3734         { .name = FW_FILE_ISP81XX, },
3735         { .name = FW_FILE_ISP82XX, },
3736 };
3737
3738 struct fw_blob *
3739 qla2x00_request_firmware(scsi_qla_host_t *vha)
3740 {
3741         struct qla_hw_data *ha = vha->hw;
3742         struct fw_blob *blob;
3743
3744         blob = NULL;
3745         if (IS_QLA2100(ha)) {
3746                 blob = &qla_fw_blobs[FW_ISP21XX];
3747         } else if (IS_QLA2200(ha)) {
3748                 blob = &qla_fw_blobs[FW_ISP22XX];
3749         } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
3750                 blob = &qla_fw_blobs[FW_ISP2300];
3751         } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
3752                 blob = &qla_fw_blobs[FW_ISP2322];
3753         } else if (IS_QLA24XX_TYPE(ha)) {
3754                 blob = &qla_fw_blobs[FW_ISP24XX];
3755         } else if (IS_QLA25XX(ha)) {
3756                 blob = &qla_fw_blobs[FW_ISP25XX];
3757         } else if (IS_QLA81XX(ha)) {
3758                 blob = &qla_fw_blobs[FW_ISP81XX];
3759         } else if (IS_QLA82XX(ha)) {
3760                 blob = &qla_fw_blobs[FW_ISP82XX];
3761         }
3762
3763         mutex_lock(&qla_fw_lock);
3764         if (blob->fw)
3765                 goto out;
3766
3767         if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
3768                 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
3769                     "(%s).\n", vha->host_no, blob->name));
3770                 blob->fw = NULL;
3771                 blob = NULL;
3772                 goto out;
3773         }
3774
3775 out:
3776         mutex_unlock(&qla_fw_lock);
3777         return blob;
3778 }
3779
3780 static void
3781 qla2x00_release_firmware(void)
3782 {
3783         int idx;
3784
3785         mutex_lock(&qla_fw_lock);
3786         for (idx = 0; idx < FW_BLOBS; idx++)
3787                 if (qla_fw_blobs[idx].fw)
3788                         release_firmware(qla_fw_blobs[idx].fw);
3789         mutex_unlock(&qla_fw_lock);
3790 }
3791
3792 static pci_ers_result_t
3793 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
3794 {
3795         scsi_qla_host_t *vha = pci_get_drvdata(pdev);
3796         struct qla_hw_data *ha = vha->hw;
3797
3798         DEBUG2(qla_printk(KERN_WARNING, ha, "error_detected:state %x\n",
3799             state));
3800
3801         switch (state) {
3802         case pci_channel_io_normal:
3803                 ha->flags.eeh_busy = 0;
3804                 return PCI_ERS_RESULT_CAN_RECOVER;
3805         case pci_channel_io_frozen:
3806                 ha->flags.eeh_busy = 1;
3807                 /* For ISP82XX complete any pending mailbox cmd */
3808                 if (IS_QLA82XX(ha)) {
3809                         ha->flags.isp82xx_fw_hung = 1;
3810                         if (ha->flags.mbox_busy) {
3811                                 ha->flags.mbox_int = 1;
3812                                 DEBUG2(qla_printk(KERN_ERR, ha,
3813                                         "Due to pci channel io frozen, doing premature "
3814                                         "completion of mbx command\n"));
3815                                 complete(&ha->mbx_intr_comp);
3816                         }
3817                 }
3818                 qla2x00_free_irqs(vha);
3819                 pci_disable_device(pdev);
3820                 /* Return back all IOs */
3821                 qla2x00_abort_all_cmds(vha, DID_RESET << 16);
3822                 return PCI_ERS_RESULT_NEED_RESET;
3823         case pci_channel_io_perm_failure:
3824                 ha->flags.pci_channel_io_perm_failure = 1;
3825                 qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
3826                 return PCI_ERS_RESULT_DISCONNECT;
3827         }
3828         return PCI_ERS_RESULT_NEED_RESET;
3829 }
3830
3831 static pci_ers_result_t
3832 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
3833 {
3834         int risc_paused = 0;
3835         uint32_t stat;
3836         unsigned long flags;
3837         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3838         struct qla_hw_data *ha = base_vha->hw;
3839         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3840         struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
3841
3842         if (IS_QLA82XX(ha))
3843                 return PCI_ERS_RESULT_RECOVERED;
3844
3845         spin_lock_irqsave(&ha->hardware_lock, flags);
3846         if (IS_QLA2100(ha) || IS_QLA2200(ha)){
3847                 stat = RD_REG_DWORD(&reg->hccr);
3848                 if (stat & HCCR_RISC_PAUSE)
3849                         risc_paused = 1;
3850         } else if (IS_QLA23XX(ha)) {
3851                 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
3852                 if (stat & HSR_RISC_PAUSED)
3853                         risc_paused = 1;
3854         } else if (IS_FWI2_CAPABLE(ha)) {
3855                 stat = RD_REG_DWORD(&reg24->host_status);
3856                 if (stat & HSRX_RISC_PAUSED)
3857                         risc_paused = 1;
3858         }
3859         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3860
3861         if (risc_paused) {
3862                 qla_printk(KERN_INFO, ha, "RISC paused -- mmio_enabled, "
3863                     "Dumping firmware!\n");
3864                 ha->isp_ops->fw_dump(base_vha, 0);
3865
3866                 return PCI_ERS_RESULT_NEED_RESET;
3867         } else
3868                 return PCI_ERS_RESULT_RECOVERED;
3869 }
3870
3871 uint32_t qla82xx_error_recovery(scsi_qla_host_t *base_vha)
3872 {
3873         uint32_t rval = QLA_FUNCTION_FAILED;
3874         uint32_t drv_active = 0;
3875         struct qla_hw_data *ha = base_vha->hw;
3876         int fn;
3877         struct pci_dev *other_pdev = NULL;
3878
3879         DEBUG17(qla_printk(KERN_INFO, ha,
3880             "scsi(%ld): In qla82xx_error_recovery\n", base_vha->host_no));
3881
3882         set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
3883
3884         if (base_vha->flags.online) {
3885                 /* Abort all outstanding commands,
3886                  * so as to be requeued later */
3887                 qla2x00_abort_isp_cleanup(base_vha);
3888         }
3889
3890
3891         fn = PCI_FUNC(ha->pdev->devfn);
3892         while (fn > 0) {
3893                 fn--;
3894                 DEBUG17(qla_printk(KERN_INFO, ha,
3895                     "Finding pci device at function = 0x%x\n", fn));
3896                 other_pdev =
3897                     pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus),
3898                     ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
3899                     fn));
3900
3901                 if (!other_pdev)
3902                         continue;
3903                 if (atomic_read(&other_pdev->enable_cnt)) {
3904                         DEBUG17(qla_printk(KERN_INFO, ha,
3905                             "Found PCI func availabe and enabled at 0x%x\n",
3906                             fn));
3907                         pci_dev_put(other_pdev);
3908                         break;
3909                 }
3910                 pci_dev_put(other_pdev);
3911         }
3912
3913         if (!fn) {
3914                 /* Reset owner */
3915                 DEBUG17(qla_printk(KERN_INFO, ha,
3916                     "This devfn is reset owner = 0x%x\n", ha->pdev->devfn));
3917                 qla82xx_idc_lock(ha);
3918
3919                 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3920                     QLA82XX_DEV_INITIALIZING);
3921
3922                 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION,
3923                     QLA82XX_IDC_VERSION);
3924
3925                 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3926                 DEBUG17(qla_printk(KERN_INFO, ha,
3927                     "drv_active = 0x%x\n", drv_active));
3928
3929                 qla82xx_idc_unlock(ha);
3930                 /* Reset if device is not already reset
3931                  * drv_active would be 0 if a reset has already been done
3932                  */
3933                 if (drv_active)
3934                         rval = qla82xx_start_firmware(base_vha);
3935                 else
3936                         rval = QLA_SUCCESS;
3937                 qla82xx_idc_lock(ha);
3938
3939                 if (rval != QLA_SUCCESS) {
3940                         qla_printk(KERN_INFO, ha, "HW State: FAILED\n");
3941                         qla82xx_clear_drv_active(ha);
3942                         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3943                             QLA82XX_DEV_FAILED);
3944                 } else {
3945                         qla_printk(KERN_INFO, ha, "HW State: READY\n");
3946                         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3947                             QLA82XX_DEV_READY);
3948                         qla82xx_idc_unlock(ha);
3949                         ha->flags.isp82xx_fw_hung = 0;
3950                         rval = qla82xx_restart_isp(base_vha);
3951                         qla82xx_idc_lock(ha);
3952                         /* Clear driver state register */
3953                         qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, 0);
3954                         qla82xx_set_drv_active(base_vha);
3955                 }
3956                 qla82xx_idc_unlock(ha);
3957         } else {
3958                 DEBUG17(qla_printk(KERN_INFO, ha,
3959                     "This devfn is not reset owner = 0x%x\n", ha->pdev->devfn));
3960                 if ((qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE) ==
3961                     QLA82XX_DEV_READY)) {
3962                         ha->flags.isp82xx_fw_hung = 0;
3963                         rval = qla82xx_restart_isp(base_vha);
3964                         qla82xx_idc_lock(ha);
3965                         qla82xx_set_drv_active(base_vha);
3966                         qla82xx_idc_unlock(ha);
3967                 }
3968         }
3969         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
3970
3971         return rval;
3972 }
3973
3974 static pci_ers_result_t
3975 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
3976 {
3977         pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
3978         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3979         struct qla_hw_data *ha = base_vha->hw;
3980         struct rsp_que *rsp;
3981         int rc, retries = 10;
3982
3983         DEBUG17(qla_printk(KERN_WARNING, ha, "slot_reset\n"));
3984
3985         /* Workaround: qla2xxx driver which access hardware earlier
3986          * needs error state to be pci_channel_io_online.
3987          * Otherwise mailbox command timesout.
3988          */
3989         pdev->error_state = pci_channel_io_normal;
3990
3991         pci_restore_state(pdev);
3992
3993         /* pci_restore_state() clears the saved_state flag of the device
3994          * save restored state which resets saved_state flag
3995          */
3996         pci_save_state(pdev);
3997
3998         if (ha->mem_only)
3999                 rc = pci_enable_device_mem(pdev);
4000         else
4001                 rc = pci_enable_device(pdev);
4002
4003         if (rc) {
4004                 qla_printk(KERN_WARNING, ha,
4005                     "Can't re-enable PCI device after reset.\n");
4006                 goto exit_slot_reset;
4007         }
4008
4009         rsp = ha->rsp_q_map[0];
4010         if (qla2x00_request_irqs(ha, rsp))
4011                 goto exit_slot_reset;
4012
4013         if (ha->isp_ops->pci_config(base_vha))
4014                 goto exit_slot_reset;
4015
4016         if (IS_QLA82XX(ha)) {
4017                 if (qla82xx_error_recovery(base_vha) == QLA_SUCCESS) {
4018                         ret = PCI_ERS_RESULT_RECOVERED;
4019                         goto exit_slot_reset;
4020                 } else
4021                         goto exit_slot_reset;
4022         }
4023
4024         while (ha->flags.mbox_busy && retries--)
4025                 msleep(1000);
4026
4027         set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
4028         if (ha->isp_ops->abort_isp(base_vha) == QLA_SUCCESS)
4029                 ret =  PCI_ERS_RESULT_RECOVERED;
4030         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
4031
4032
4033 exit_slot_reset:
4034         DEBUG17(qla_printk(KERN_WARNING, ha,
4035             "slot_reset-return:ret=%x\n", ret));
4036
4037         return ret;
4038 }
4039
4040 static void
4041 qla2xxx_pci_resume(struct pci_dev *pdev)
4042 {
4043         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
4044         struct qla_hw_data *ha = base_vha->hw;
4045         int ret;
4046
4047         DEBUG17(qla_printk(KERN_WARNING, ha, "pci_resume\n"));
4048
4049         ret = qla2x00_wait_for_hba_online(base_vha);
4050         if (ret != QLA_SUCCESS) {
4051                 qla_printk(KERN_ERR, ha,
4052                     "the device failed to resume I/O "
4053                     "from slot/link_reset");
4054         }
4055
4056         pci_cleanup_aer_uncorrect_error_status(pdev);
4057
4058         ha->flags.eeh_busy = 0;
4059 }
4060
4061 static struct pci_error_handlers qla2xxx_err_handler = {
4062         .error_detected = qla2xxx_pci_error_detected,
4063         .mmio_enabled = qla2xxx_pci_mmio_enabled,
4064         .slot_reset = qla2xxx_pci_slot_reset,
4065         .resume = qla2xxx_pci_resume,
4066 };
4067
4068 static struct pci_device_id qla2xxx_pci_tbl[] = {
4069         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
4070         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
4071         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
4072         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
4073         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
4074         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
4075         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
4076         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
4077         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
4078         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) },
4079         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
4080         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
4081         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
4082         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8001) },
4083         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8021) },
4084         { 0 },
4085 };
4086 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
4087
4088 static struct pci_driver qla2xxx_pci_driver = {
4089         .name           = QLA2XXX_DRIVER_NAME,
4090         .driver         = {
4091                 .owner          = THIS_MODULE,
4092         },
4093         .id_table       = qla2xxx_pci_tbl,
4094         .probe          = qla2x00_probe_one,
4095         .remove         = qla2x00_remove_one,
4096         .shutdown       = qla2x00_shutdown,
4097         .err_handler    = &qla2xxx_err_handler,
4098 };
4099
4100 static struct file_operations apidev_fops = {
4101         .owner = THIS_MODULE,
4102         .llseek = noop_llseek,
4103 };
4104
4105 /**
4106  * qla2x00_module_init - Module initialization.
4107  **/
4108 static int __init
4109 qla2x00_module_init(void)
4110 {
4111         int ret = 0;
4112
4113         /* Allocate cache for SRBs. */
4114         srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
4115             SLAB_HWCACHE_ALIGN, NULL);
4116         if (srb_cachep == NULL) {
4117                 printk(KERN_ERR
4118                     "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
4119                 return -ENOMEM;
4120         }
4121
4122         /* Derive version string. */
4123         strcpy(qla2x00_version_str, QLA2XXX_VERSION);
4124         if (ql2xextended_error_logging)
4125                 strcat(qla2x00_version_str, "-debug");
4126
4127         qla2xxx_transport_template =
4128             fc_attach_transport(&qla2xxx_transport_functions);
4129         if (!qla2xxx_transport_template) {
4130                 kmem_cache_destroy(srb_cachep);
4131                 return -ENODEV;
4132         }
4133
4134         apidev_major = register_chrdev(0, QLA2XXX_APIDEV, &apidev_fops);
4135         if (apidev_major < 0) {
4136                 printk(KERN_WARNING "qla2xxx: Unable to register char device "
4137                     "%s\n", QLA2XXX_APIDEV);
4138         }
4139
4140         qla2xxx_transport_vport_template =
4141             fc_attach_transport(&qla2xxx_transport_vport_functions);
4142         if (!qla2xxx_transport_vport_template) {
4143                 kmem_cache_destroy(srb_cachep);
4144                 fc_release_transport(qla2xxx_transport_template);
4145                 return -ENODEV;
4146         }
4147
4148         printk(KERN_INFO "QLogic Fibre Channel HBA Driver: %s\n",
4149             qla2x00_version_str);
4150         ret = pci_register_driver(&qla2xxx_pci_driver);
4151         if (ret) {
4152                 kmem_cache_destroy(srb_cachep);
4153                 fc_release_transport(qla2xxx_transport_template);
4154                 fc_release_transport(qla2xxx_transport_vport_template);
4155         }
4156         return ret;
4157 }
4158
4159 /**
4160  * qla2x00_module_exit - Module cleanup.
4161  **/
4162 static void __exit
4163 qla2x00_module_exit(void)
4164 {
4165         unregister_chrdev(apidev_major, QLA2XXX_APIDEV);
4166         pci_unregister_driver(&qla2xxx_pci_driver);
4167         qla2x00_release_firmware();
4168         kmem_cache_destroy(srb_cachep);
4169         if (ctx_cachep)
4170                 kmem_cache_destroy(ctx_cachep);
4171         fc_release_transport(qla2xxx_transport_template);
4172         fc_release_transport(qla2xxx_transport_vport_template);
4173 }
4174
4175 module_init(qla2x00_module_init);
4176 module_exit(qla2x00_module_exit);
4177
4178 MODULE_AUTHOR("QLogic Corporation");
4179 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
4180 MODULE_LICENSE("GPL");
4181 MODULE_VERSION(QLA2XXX_VERSION);
4182 MODULE_FIRMWARE(FW_FILE_ISP21XX);
4183 MODULE_FIRMWARE(FW_FILE_ISP22XX);
4184 MODULE_FIRMWARE(FW_FILE_ISP2300);
4185 MODULE_FIRMWARE(FW_FILE_ISP2322);
4186 MODULE_FIRMWARE(FW_FILE_ISP24XX);
4187 MODULE_FIRMWARE(FW_FILE_ISP25XX);