drivers/scsi/qla2xxx/qla_os.c

   1 /*
   2  * QLogic Fibre Channel HBA Driver
   3  * Copyright (c)  2003-2011 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 int ql2xdontresethba;
 169 module_param(ql2xdontresethba, int, S_IRUGO);
 170 MODULE_PARM_DESC(ql2xdontresethba,
 171         "Option to specify reset behaviour\n"
 172         " 0 (Default) -- Reset on failure.\n"
 173         " 1 -- Do not reset on failure.\n");
 174
 175 /*
 176  * SCSI host template entry points
 177  */
 178 static int qla2xxx_slave_configure(struct scsi_device * device);
 179 static int qla2xxx_slave_alloc(struct scsi_device *);
 180 static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
 181 static void qla2xxx_scan_start(struct Scsi_Host *);
 182 static void qla2xxx_slave_destroy(struct scsi_device *);
 183 static int qla2xxx_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmd);
 184 static int qla2xxx_eh_abort(struct scsi_cmnd *);
 185 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
 186 static int qla2xxx_eh_target_reset(struct scsi_cmnd *);
 187 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
 188 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
 189
 190 static int qla2x00_change_queue_depth(struct scsi_device *, int, int);
 191 static int qla2x00_change_queue_type(struct scsi_device *, int);
 192
 193 struct scsi_host_template qla2xxx_driver_template = {
 194         .module                 = THIS_MODULE,
 195         .name                   = QLA2XXX_DRIVER_NAME,
 196         .queuecommand           = qla2xxx_queuecommand,
 197
 198         .eh_abort_handler       = qla2xxx_eh_abort,
 199         .eh_device_reset_handler = qla2xxx_eh_device_reset,
 200         .eh_target_reset_handler = qla2xxx_eh_target_reset,
 201         .eh_bus_reset_handler   = qla2xxx_eh_bus_reset,
 202         .eh_host_reset_handler  = qla2xxx_eh_host_reset,
 203
 204         .slave_configure        = qla2xxx_slave_configure,
 205
 206         .slave_alloc            = qla2xxx_slave_alloc,
 207         .slave_destroy          = qla2xxx_slave_destroy,
 208         .scan_finished          = qla2xxx_scan_finished,
 209         .scan_start             = qla2xxx_scan_start,
 210         .change_queue_depth     = qla2x00_change_queue_depth,
 211         .change_queue_type      = qla2x00_change_queue_type,
 212         .this_id                = -1,
 213         .cmd_per_lun            = 3,
 214         .use_clustering         = ENABLE_CLUSTERING,
 215         .sg_tablesize           = SG_ALL,
 216
 217         .max_sectors            = 0xFFFF,
 218         .shost_attrs            = qla2x00_host_attrs,
 219 };
 220
 221 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
 222 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
 223
 224 /* TODO Convert to inlines
 225  *
 226  * Timer routines
 227  */
 228
 229 __inline__ void
 230 qla2x00_start_timer(scsi_qla_host_t *vha, void *func, unsigned long interval)
 231 {
 232         init_timer(&vha->timer);
 233         vha->timer.expires = jiffies + interval * HZ;
 234         vha->timer.data = (unsigned long)vha;
 235         vha->timer.function = (void (*)(unsigned long))func;
 236         add_timer(&vha->timer);
 237         vha->timer_active = 1;
 238 }
 239
 240 static inline void
 241 qla2x00_restart_timer(scsi_qla_host_t *vha, unsigned long interval)
 242 {
 243         /* Currently used for 82XX only. */
 244         if (vha->device_flags & DFLG_DEV_FAILED)
 245                 return;
 246
 247         mod_timer(&vha->timer, jiffies + interval * HZ);
 248 }
 249
 250 static __inline__ void
 251 qla2x00_stop_timer(scsi_qla_host_t *vha)
 252 {
 253         del_timer_sync(&vha->timer);
 254         vha->timer_active = 0;
 255 }
 256
 257 static int qla2x00_do_dpc(void *data);
 258
 259 static void qla2x00_rst_aen(scsi_qla_host_t *);
 260
 261 static int qla2x00_mem_alloc(struct qla_hw_data *, uint16_t, uint16_t,
 262         struct req_que **, struct rsp_que **);
 263 static void qla2x00_free_fw_dump(struct qla_hw_data *);
 264 static void qla2x00_mem_free(struct qla_hw_data *);
 265 static void qla2x00_sp_free_dma(srb_t *);
 266
 267 /* -------------------------------------------------------------------------- */
 268 static int qla2x00_alloc_queues(struct qla_hw_data *ha)
 269 {
 270         ha->req_q_map = kzalloc(sizeof(struct req_que *) * ha->max_req_queues,
 271                                 GFP_KERNEL);
 272         if (!ha->req_q_map) {
 273                 qla_printk(KERN_WARNING, ha,
 274                         "Unable to allocate memory for request queue ptrs\n");
 275                 goto fail_req_map;
 276         }
 277
 278         ha->rsp_q_map = kzalloc(sizeof(struct rsp_que *) * ha->max_rsp_queues,
 279                                 GFP_KERNEL);
 280         if (!ha->rsp_q_map) {
 281                 qla_printk(KERN_WARNING, ha,
 282                         "Unable to allocate memory for response queue ptrs\n");
 283                 goto fail_rsp_map;
 284         }
 285         set_bit(0, ha->rsp_qid_map);
 286         set_bit(0, ha->req_qid_map);
 287         return 1;
 288
 289 fail_rsp_map:
 290         kfree(ha->req_q_map);
 291         ha->req_q_map = NULL;
 292 fail_req_map:
 293         return -ENOMEM;
 294 }
 295
 296 static void qla2x00_free_req_que(struct qla_hw_data *ha, struct req_que *req)
 297 {
 298         if (req && req->ring)
 299                 dma_free_coherent(&ha->pdev->dev,
 300                 (req->length + 1) * sizeof(request_t),
 301                 req->ring, req->dma);
 302
 303         kfree(req);
 304         req = NULL;
 305 }
 306
 307 static void qla2x00_free_rsp_que(struct qla_hw_data *ha, struct rsp_que *rsp)
 308 {
 309         if (rsp && rsp->ring)
 310                 dma_free_coherent(&ha->pdev->dev,
 311                 (rsp->length + 1) * sizeof(response_t),
 312                 rsp->ring, rsp->dma);
 313
 314         kfree(rsp);
 315         rsp = NULL;
 316 }
 317
 318 static void qla2x00_free_queues(struct qla_hw_data *ha)
 319 {
 320         struct req_que *req;
 321         struct rsp_que *rsp;
 322         int cnt;
 323
 324         for (cnt = 0; cnt < ha->max_req_queues; cnt++) {
 325                 req = ha->req_q_map[cnt];
 326                 qla2x00_free_req_que(ha, req);
 327         }
 328         kfree(ha->req_q_map);
 329         ha->req_q_map = NULL;
 330
 331         for (cnt = 0; cnt < ha->max_rsp_queues; cnt++) {
 332                 rsp = ha->rsp_q_map[cnt];
 333                 qla2x00_free_rsp_que(ha, rsp);
 334         }
 335         kfree(ha->rsp_q_map);
 336         ha->rsp_q_map = NULL;
 337 }
 338
 339 static int qla25xx_setup_mode(struct scsi_qla_host *vha)
 340 {
 341         uint16_t options = 0;
 342         int ques, req, ret;
 343         struct qla_hw_data *ha = vha->hw;
 344
 345         if (!(ha->fw_attributes & BIT_6)) {
 346                 qla_printk(KERN_INFO, ha,
 347                         "Firmware is not multi-queue capable\n");
 348                 goto fail;
 349         }
 350         if (ql2xmultique_tag) {
 351                 /* create a request queue for IO */
 352                 options |= BIT_7;
 353                 req = qla25xx_create_req_que(ha, options, 0, 0, -1,
 354                         QLA_DEFAULT_QUE_QOS);
 355                 if (!req) {
 356                         qla_printk(KERN_WARNING, ha,
 357                                 "Can't create request queue\n");
 358                         goto fail;
 359                 }
 360                 ha->wq = alloc_workqueue("qla2xxx_wq", WQ_MEM_RECLAIM, 1);
 361                 vha->req = ha->req_q_map[req];
 362                 options |= BIT_1;
 363                 for (ques = 1; ques < ha->max_rsp_queues; ques++) {
 364                         ret = qla25xx_create_rsp_que(ha, options, 0, 0, req);
 365                         if (!ret) {
 366                                 qla_printk(KERN_WARNING, ha,
 367                                         "Response Queue create failed\n");
 368                                 goto fail2;
 369                         }
 370                 }
 371                 ha->flags.cpu_affinity_enabled = 1;
 372
 373                 DEBUG2(qla_printk(KERN_INFO, ha,
 374                         "CPU affinity mode enabled, no. of response"
 375                         " queues:%d, no. of request queues:%d\n",
 376                         ha->max_rsp_queues, ha->max_req_queues));
 377         }
 378         return 0;
 379 fail2:
 380         qla25xx_delete_queues(vha);
 381         destroy_workqueue(ha->wq);
 382         ha->wq = NULL;
 383 fail:
 384         ha->mqenable = 0;
 385         kfree(ha->req_q_map);
 386         kfree(ha->rsp_q_map);
 387         ha->max_req_queues = ha->max_rsp_queues = 1;
 388         return 1;
 389 }
 390
 391 static char *
 392 qla2x00_pci_info_str(struct scsi_qla_host *vha, char *str)
 393 {
 394         struct qla_hw_data *ha = vha->hw;
 395         static char *pci_bus_modes[] = {
 396                 "33", "66", "100", "133",
 397         };
 398         uint16_t pci_bus;
 399
 400         strcpy(str, "PCI");
 401         pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
 402         if (pci_bus) {
 403                 strcat(str, "-X (");
 404                 strcat(str, pci_bus_modes[pci_bus]);
 405         } else {
 406                 pci_bus = (ha->pci_attr & BIT_8) >> 8;
 407                 strcat(str, " (");
 408                 strcat(str, pci_bus_modes[pci_bus]);
 409         }
 410         strcat(str, " MHz)");
 411
 412         return (str);
 413 }
 414
 415 static char *
 416 qla24xx_pci_info_str(struct scsi_qla_host *vha, char *str)
 417 {
 418         static char *pci_bus_modes[] = { "33", "66", "100", "133", };
 419         struct qla_hw_data *ha = vha->hw;
 420         uint32_t pci_bus;
 421         int pcie_reg;
 422
 423         pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
 424         if (pcie_reg) {
 425                 char lwstr[6];
 426                 uint16_t pcie_lstat, lspeed, lwidth;
 427
 428                 pcie_reg += 0x12;
 429                 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
 430                 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
 431                 lwidth = (pcie_lstat &
 432                     (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
 433
 434                 strcpy(str, "PCIe (");
 435                 if (lspeed == 1)
 436                         strcat(str, "2.5GT/s ");
 437                 else if (lspeed == 2)
 438                         strcat(str, "5.0GT/s ");
 439                 else
 440                         strcat(str, "<unknown> ");
 441                 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
 442                 strcat(str, lwstr);
 443
 444                 return str;
 445         }
 446
 447         strcpy(str, "PCI");
 448         pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
 449         if (pci_bus == 0 || pci_bus == 8) {
 450                 strcat(str, " (");
 451                 strcat(str, pci_bus_modes[pci_bus >> 3]);
 452         } else {
 453                 strcat(str, "-X ");
 454                 if (pci_bus & BIT_2)
 455                         strcat(str, "Mode 2");
 456                 else
 457                         strcat(str, "Mode 1");
 458                 strcat(str, " (");
 459                 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
 460         }
 461         strcat(str, " MHz)");
 462
 463         return str;
 464 }
 465
 466 static char *
 467 qla2x00_fw_version_str(struct scsi_qla_host *vha, char *str)
 468 {
 469         char un_str[10];
 470         struct qla_hw_data *ha = vha->hw;
 471
 472         sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
 473             ha->fw_minor_version,
 474             ha->fw_subminor_version);
 475
 476         if (ha->fw_attributes & BIT_9) {
 477                 strcat(str, "FLX");
 478                 return (str);
 479         }
 480
 481         switch (ha->fw_attributes & 0xFF) {
 482         case 0x7:
 483                 strcat(str, "EF");
 484                 break;
 485         case 0x17:
 486                 strcat(str, "TP");
 487                 break;
 488         case 0x37:
 489                 strcat(str, "IP");
 490                 break;
 491         case 0x77:
 492                 strcat(str, "VI");
 493                 break;
 494         default:
 495                 sprintf(un_str, "(%x)", ha->fw_attributes);
 496                 strcat(str, un_str);
 497                 break;
 498         }
 499         if (ha->fw_attributes & 0x100)
 500                 strcat(str, "X");
 501
 502         return (str);
 503 }
 504
 505 static char *
 506 qla24xx_fw_version_str(struct scsi_qla_host *vha, char *str)
 507 {
 508         struct qla_hw_data *ha = vha->hw;
 509
 510         sprintf(str, "%d.%02d.%02d (%x)", ha->fw_major_version,
 511             ha->fw_minor_version, ha->fw_subminor_version, ha->fw_attributes);
 512         return str;
 513 }
 514
 515 static inline srb_t *
 516 qla2x00_get_new_sp(scsi_qla_host_t *vha, fc_port_t *fcport,
 517         struct scsi_cmnd *cmd)
 518 {
 519         srb_t *sp;
 520         struct qla_hw_data *ha = vha->hw;
 521
 522         sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
 523         if (!sp)
 524                 return sp;
 525
 526         atomic_set(&sp->ref_count, 1);
 527         sp->fcport = fcport;
 528         sp->cmd = cmd;
 529         sp->flags = 0;
 530         CMD_SP(cmd) = (void *)sp;
 531         sp->ctx = NULL;
 532
 533         return sp;
 534 }
 535
 536 static int
 537 qla2xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
 538 {
 539         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 540         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 541         struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
 542         struct qla_hw_data *ha = vha->hw;
 543         struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
 544         srb_t *sp;
 545         int rval;
 546
 547         if (ha->flags.eeh_busy) {
 548                 if (ha->flags.pci_channel_io_perm_failure)
 549                         cmd->result = DID_NO_CONNECT << 16;
 550                 else
 551                         cmd->result = DID_REQUEUE << 16;
 552                 goto qc24_fail_command;
 553         }
 554
 555         rval = fc_remote_port_chkready(rport);
 556         if (rval) {
 557                 cmd->result = rval;
 558                 goto qc24_fail_command;
 559         }
 560
 561         if (!vha->flags.difdix_supported &&
 562                 scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) {
 563                         DEBUG2(qla_printk(KERN_ERR, ha,
 564                             "DIF Cap Not Reg, fail DIF capable cmd's:%x\n",
 565                             cmd->cmnd[0]));
 566                         cmd->result = DID_NO_CONNECT << 16;
 567                         goto qc24_fail_command;
 568         }
 569         if (atomic_read(&fcport->state) != FCS_ONLINE) {
 570                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
 571                         atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
 572                         cmd->result = DID_NO_CONNECT << 16;
 573                         goto qc24_fail_command;
 574                 }
 575                 goto qc24_target_busy;
 576         }
 577
 578         sp = qla2x00_get_new_sp(base_vha, fcport, cmd);
 579         if (!sp)
 580                 goto qc24_host_busy;
 581
 582         rval = ha->isp_ops->start_scsi(sp);
 583         if (rval != QLA_SUCCESS)
 584                 goto qc24_host_busy_free_sp;
 585
 586         return 0;
 587
 588 qc24_host_busy_free_sp:
 589         qla2x00_sp_free_dma(sp);
 590         mempool_free(sp, ha->srb_mempool);
 591
 592 qc24_host_busy:
 593         return SCSI_MLQUEUE_HOST_BUSY;
 594
 595 qc24_target_busy:
 596         return SCSI_MLQUEUE_TARGET_BUSY;
 597
 598 qc24_fail_command:
 599         cmd->scsi_done(cmd);
 600
 601         return 0;
 602 }
 603
 604 /*
 605  * qla2x00_eh_wait_on_command
 606  *    Waits for the command to be returned by the Firmware for some
 607  *    max time.
 608  *
 609  * Input:
 610  *    cmd = Scsi Command to wait on.
 611  *
 612  * Return:
 613  *    Not Found : 0
 614  *    Found : 1
 615  */
 616 static int
 617 qla2x00_eh_wait_on_command(struct scsi_cmnd *cmd)
 618 {
 619 #define ABORT_POLLING_PERIOD    1000
 620 #define ABORT_WAIT_ITER         ((10 * 1000) / (ABORT_POLLING_PERIOD))
 621         unsigned long wait_iter = ABORT_WAIT_ITER;
 622         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 623         struct qla_hw_data *ha = vha->hw;
 624         int ret = QLA_SUCCESS;
 625
 626         if (unlikely(pci_channel_offline(ha->pdev)) || ha->flags.eeh_busy) {
 627                 DEBUG17(qla_printk(KERN_WARNING, ha, "return:eh_wait\n"));
 628                 return ret;
 629         }
 630
 631         while (CMD_SP(cmd) && wait_iter--) {
 632                 msleep(ABORT_POLLING_PERIOD);
 633         }
 634         if (CMD_SP(cmd))
 635                 ret = QLA_FUNCTION_FAILED;
 636
 637         return ret;
 638 }
 639
 640 /*
 641  * qla2x00_wait_for_hba_online
 642  *    Wait till the HBA is online after going through
 643  *    <= MAX_RETRIES_OF_ISP_ABORT  or
 644  *    finally HBA is disabled ie marked offline
 645  *
 646  * Input:
 647  *     ha - pointer to host adapter structure
 648  *
 649  * Note:
 650  *    Does context switching-Release SPIN_LOCK
 651  *    (if any) before calling this routine.
 652  *
 653  * Return:
 654  *    Success (Adapter is online) : 0
 655  *    Failed  (Adapter is offline/disabled) : 1
 656  */
 657 int
 658 qla2x00_wait_for_hba_online(scsi_qla_host_t *vha)
 659 {
 660         int             return_status;
 661         unsigned long   wait_online;
 662         struct qla_hw_data *ha = vha->hw;
 663         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 664
 665         wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 666         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 667             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 668             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 669             ha->dpc_active) && time_before(jiffies, wait_online)) {
 670
 671                 msleep(1000);
 672         }
 673         if (base_vha->flags.online)
 674                 return_status = QLA_SUCCESS;
 675         else
 676                 return_status = QLA_FUNCTION_FAILED;
 677
 678         return (return_status);
 679 }
 680
 681 /*
 682  * qla2x00_wait_for_reset_ready
 683  *    Wait till the HBA is online after going through
 684  *    <= MAX_RETRIES_OF_ISP_ABORT  or
 685  *    finally HBA is disabled ie marked offline or flash
 686  *    operations are in progress.
 687  *
 688  * Input:
 689  *     ha - pointer to host adapter structure
 690  *
 691  * Note:
 692  *    Does context switching-Release SPIN_LOCK
 693  *    (if any) before calling this routine.
 694  *
 695  * Return:
 696  *    Success (Adapter is online/no flash ops) : 0
 697  *    Failed  (Adapter is offline/disabled/flash ops in progress) : 1
 698  */
 699 static int
 700 qla2x00_wait_for_reset_ready(scsi_qla_host_t *vha)
 701 {
 702         int             return_status;
 703         unsigned long   wait_online;
 704         struct qla_hw_data *ha = vha->hw;
 705         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 706
 707         wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 708         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 709             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 710             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 711             ha->optrom_state != QLA_SWAITING ||
 712             ha->dpc_active) && time_before(jiffies, wait_online))
 713                 msleep(1000);
 714
 715         if (base_vha->flags.online &&  ha->optrom_state == QLA_SWAITING)
 716                 return_status = QLA_SUCCESS;
 717         else
 718                 return_status = QLA_FUNCTION_FAILED;
 719
 720         DEBUG2(printk("%s return_status=%d\n", __func__, return_status));
 721
 722         return return_status;
 723 }
 724
 725 int
 726 qla2x00_wait_for_chip_reset(scsi_qla_host_t *vha)
 727 {
 728         int             return_status;
 729         unsigned long   wait_reset;
 730         struct qla_hw_data *ha = vha->hw;
 731         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 732
 733         wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 734         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 735             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 736             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 737             ha->dpc_active) && time_before(jiffies, wait_reset)) {
 738
 739                 msleep(1000);
 740
 741                 if (!test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags) &&
 742                     ha->flags.chip_reset_done)
 743                         break;
 744         }
 745         if (ha->flags.chip_reset_done)
 746                 return_status = QLA_SUCCESS;
 747         else
 748                 return_status = QLA_FUNCTION_FAILED;
 749
 750         return return_status;
 751 }
 752
 753 /*
 754  * qla2x00_wait_for_loop_ready
 755  *    Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
 756  *    to be in LOOP_READY state.
 757  * Input:
 758  *     ha - pointer to host adapter structure
 759  *
 760  * Note:
 761  *    Does context switching-Release SPIN_LOCK
 762  *    (if any) before calling this routine.
 763  *
 764  *
 765  * Return:
 766  *    Success (LOOP_READY) : 0
 767  *    Failed  (LOOP_NOT_READY) : 1
 768  */
 769 static inline int
 770 qla2x00_wait_for_loop_ready(scsi_qla_host_t *vha)
 771 {
 772         int      return_status = QLA_SUCCESS;
 773         unsigned long loop_timeout ;
 774         struct qla_hw_data *ha = vha->hw;
 775         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 776
 777         /* wait for 5 min at the max for loop to be ready */
 778         loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 779
 780         while ((!atomic_read(&base_vha->loop_down_timer) &&
 781             atomic_read(&base_vha->loop_state) == LOOP_DOWN) ||
 782             atomic_read(&base_vha->loop_state) != LOOP_READY) {
 783                 if (atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
 784                         return_status = QLA_FUNCTION_FAILED;
 785                         break;
 786                 }
 787                 msleep(1000);
 788                 if (time_after_eq(jiffies, loop_timeout)) {
 789                         return_status = QLA_FUNCTION_FAILED;
 790                         break;
 791                 }
 792         }
 793         return (return_status);
 794 }
 795
 796 static void
 797 sp_get(struct srb *sp)
 798 {
 799         atomic_inc(&sp->ref_count);
 800 }
 801
 802 /**************************************************************************
 803 * qla2xxx_eh_abort
 804 *
 805 * Description:
 806 *    The abort function will abort the specified command.
 807 *
 808 * Input:
 809 *    cmd = Linux SCSI command packet to be aborted.
 810 *
 811 * Returns:
 812 *    Either SUCCESS or FAILED.
 813 *
 814 * Note:
 815 *    Only return FAILED if command not returned by firmware.
 816 **************************************************************************/
 817 static int
 818 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
 819 {
 820         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 821         srb_t *sp;
 822         int ret;
 823         unsigned int id, lun;
 824         unsigned long flags;
 825         int wait = 0;
 826         struct qla_hw_data *ha = vha->hw;
 827
 828         if (!CMD_SP(cmd))
 829                 return SUCCESS;
 830
 831         ret = fc_block_scsi_eh(cmd);
 832         if (ret != 0)
 833                 return ret;
 834         ret = SUCCESS;
 835
 836         id = cmd->device->id;
 837         lun = cmd->device->lun;
 838
 839         spin_lock_irqsave(&ha->hardware_lock, flags);
 840         sp = (srb_t *) CMD_SP(cmd);
 841         if (!sp) {
 842                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 843                 return SUCCESS;
 844         }
 845
 846         DEBUG2(printk("%s(%ld): aborting sp %p from RISC.",
 847             __func__, vha->host_no, sp));
 848
 849         /* Get a reference to the sp and drop the lock.*/
 850         sp_get(sp);
 851
 852         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 853         if (ha->isp_ops->abort_command(sp)) {
 854                 DEBUG2(printk("%s(%ld): abort_command "
 855                 "mbx failed.\n", __func__, vha->host_no));
 856                 ret = FAILED;
 857         } else {
 858                 DEBUG3(printk("%s(%ld): abort_command "
 859                 "mbx success.\n", __func__, vha->host_no));
 860                 wait = 1;
 861         }
 862         qla2x00_sp_compl(ha, sp);
 863
 864         /* Wait for the command to be returned. */
 865         if (wait) {
 866                 if (qla2x00_eh_wait_on_command(cmd) != QLA_SUCCESS) {
 867                         qla_printk(KERN_ERR, ha,
 868                             "scsi(%ld:%d:%d): Abort handler timed out -- %x.\n",
 869                             vha->host_no, id, lun, ret);
 870                         ret = FAILED;
 871                 }
 872         }
 873
 874         qla_printk(KERN_INFO, ha,
 875             "scsi(%ld:%d:%d): Abort command issued -- %d %x.\n",
 876             vha->host_no, id, lun, wait, ret);
 877
 878         return ret;
 879 }
 880
 881 int
 882 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *vha, unsigned int t,
 883         unsigned int l, enum nexus_wait_type type)
 884 {
 885         int cnt, match, status;
 886         unsigned long flags;
 887         struct qla_hw_data *ha = vha->hw;
 888         struct req_que *req;
 889         srb_t *sp;
 890
 891         status = QLA_SUCCESS;
 892
 893         spin_lock_irqsave(&ha->hardware_lock, flags);
 894         req = vha->req;
 895         for (cnt = 1; status == QLA_SUCCESS &&
 896                 cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
 897                 sp = req->outstanding_cmds[cnt];
 898                 if (!sp)
 899                         continue;
 900                 if ((sp->ctx) && !IS_PROT_IO(sp))
 901                         continue;
 902                 if (vha->vp_idx != sp->fcport->vha->vp_idx)
 903                         continue;
 904                 match = 0;
 905                 switch (type) {
 906                 case WAIT_HOST:
 907                         match = 1;
 908                         break;
 909                 case WAIT_TARGET:
 910                         match = sp->cmd->device->id == t;
 911                         break;
 912                 case WAIT_LUN:
 913                         match = (sp->cmd->device->id == t &&
 914                                 sp->cmd->device->lun == l);
 915                         break;
 916                 }
 917                 if (!match)
 918                         continue;
 919
 920                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 921                 status = qla2x00_eh_wait_on_command(sp->cmd);
 922                 spin_lock_irqsave(&ha->hardware_lock, flags);
 923         }
 924         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 925
 926         return status;
 927 }
 928
 929 static char *reset_errors[] = {
 930         "HBA not online",
 931         "HBA not ready",
 932         "Task management failed",
 933         "Waiting for command completions",
 934 };
 935
 936 static int
 937 __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
 938     struct scsi_cmnd *cmd, int (*do_reset)(struct fc_port *, unsigned int, int))
 939 {
 940         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 941         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 942         int err;
 943
 944         if (!fcport)
 945                 return FAILED;
 946
 947         err = fc_block_scsi_eh(cmd);
 948         if (err != 0)
 949                 return err;
 950
 951         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET ISSUED.\n",
 952             vha->host_no, cmd->device->id, cmd->device->lun, name);
 953
 954         err = 0;
 955         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
 956                 goto eh_reset_failed;
 957         err = 1;
 958         if (qla2x00_wait_for_loop_ready(vha) != QLA_SUCCESS)
 959                 goto eh_reset_failed;
 960         err = 2;
 961         if (do_reset(fcport, cmd->device->lun, cmd->request->cpu + 1)
 962                 != QLA_SUCCESS)
 963                 goto eh_reset_failed;
 964         err = 3;
 965         if (qla2x00_eh_wait_for_pending_commands(vha, cmd->device->id,
 966             cmd->device->lun, type) != QLA_SUCCESS)
 967                 goto eh_reset_failed;
 968
 969         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET SUCCEEDED.\n",
 970             vha->host_no, cmd->device->id, cmd->device->lun, name);
 971
 972         return SUCCESS;
 973
 974 eh_reset_failed:
 975         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET FAILED: %s.\n"
 976             , vha->host_no, cmd->device->id, cmd->device->lun, name,
 977             reset_errors[err]);
 978         return FAILED;
 979 }
 980
 981 static int
 982 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
 983 {
 984         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 985         struct qla_hw_data *ha = vha->hw;
 986
 987         return __qla2xxx_eh_generic_reset("DEVICE", WAIT_LUN, cmd,
 988             ha->isp_ops->lun_reset);
 989 }
 990
 991 static int
 992 qla2xxx_eh_target_reset(struct scsi_cmnd *cmd)
 993 {
 994         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 995         struct qla_hw_data *ha = vha->hw;
 996
 997         return __qla2xxx_eh_generic_reset("TARGET", WAIT_TARGET, cmd,
 998             ha->isp_ops->target_reset);
 999 }
1000
1001 /**************************************************************************
1002 * qla2xxx_eh_bus_reset
1003 *
1004 * Description:
1005 *    The bus reset function will reset the bus and abort any executing
1006 *    commands.
1007 *
1008 * Input:
1009 *    cmd = Linux SCSI command packet of the command that cause the
1010 *          bus reset.
1011 *
1012 * Returns:
1013 *    SUCCESS/FAILURE (defined as macro in scsi.h).
1014 *
1015 **************************************************************************/
1016 static int
1017 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
1018 {
1019         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1020         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1021         int ret = FAILED;
1022         unsigned int id, lun;
1023
1024         id = cmd->device->id;
1025         lun = cmd->device->lun;
1026
1027         if (!fcport)
1028                 return ret;
1029
1030         ret = fc_block_scsi_eh(cmd);
1031         if (ret != 0)
1032                 return ret;
1033         ret = FAILED;
1034
1035         qla_printk(KERN_INFO, vha->hw,
1036             "scsi(%ld:%d:%d): BUS RESET ISSUED.\n", vha->host_no, id, lun);
1037
1038         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1039                 DEBUG2(printk("%s failed:board disabled\n",__func__));
1040                 goto eh_bus_reset_done;
1041         }
1042
1043         if (qla2x00_wait_for_loop_ready(vha) == QLA_SUCCESS) {
1044                 if (qla2x00_loop_reset(vha) == QLA_SUCCESS)
1045                         ret = SUCCESS;
1046         }
1047         if (ret == FAILED)
1048                 goto eh_bus_reset_done;
1049
1050         /* Flush outstanding commands. */
1051         if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST) !=
1052             QLA_SUCCESS)
1053                 ret = FAILED;
1054
1055 eh_bus_reset_done:
1056         qla_printk(KERN_INFO, vha->hw, "%s: reset %s\n", __func__,
1057             (ret == FAILED) ? "failed" : "succeeded");
1058
1059         return ret;
1060 }
1061
1062 /**************************************************************************
1063 * qla2xxx_eh_host_reset
1064 *
1065 * Description:
1066 *    The reset function will reset the Adapter.
1067 *
1068 * Input:
1069 *      cmd = Linux SCSI command packet of the command that cause the
1070 *            adapter reset.
1071 *
1072 * Returns:
1073 *      Either SUCCESS or FAILED.
1074 *
1075 * Note:
1076 **************************************************************************/
1077 static int
1078 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
1079 {
1080         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1081         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1082         struct qla_hw_data *ha = vha->hw;
1083         int ret = FAILED;
1084         unsigned int id, lun;
1085         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1086
1087         id = cmd->device->id;
1088         lun = cmd->device->lun;
1089
1090         if (!fcport)
1091                 return ret;
1092
1093         ret = fc_block_scsi_eh(cmd);
1094         if (ret != 0)
1095                 return ret;
1096         ret = FAILED;
1097
1098         qla_printk(KERN_INFO, ha,
1099             "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", vha->host_no, id, lun);
1100
1101         if (qla2x00_wait_for_reset_ready(vha) != QLA_SUCCESS)
1102                 goto eh_host_reset_lock;
1103
1104         /*
1105          * Fixme-may be dpc thread is active and processing
1106          * loop_resync,so wait a while for it to
1107          * be completed and then issue big hammer.Otherwise
1108          * it may cause I/O failure as big hammer marks the
1109          * devices as lost kicking of the port_down_timer
1110          * while dpc is stuck for the mailbox to complete.
1111          */
1112         qla2x00_wait_for_loop_ready(vha);
1113         if (vha != base_vha) {
1114                 if (qla2x00_vp_abort_isp(vha))
1115                         goto eh_host_reset_lock;
1116         } else {
1117                 if (IS_QLA82XX(vha->hw)) {
1118                         if (!qla82xx_fcoe_ctx_reset(vha)) {
1119                                 /* Ctx reset success */
1120                                 ret = SUCCESS;
1121                                 goto eh_host_reset_lock;
1122                         }
1123                         /* fall thru if ctx reset failed */
1124                 }
1125                 if (ha->wq)
1126                         flush_workqueue(ha->wq);
1127
1128                 set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1129                 if (ha->isp_ops->abort_isp(base_vha)) {
1130                         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1131                         /* failed. schedule dpc to try */
1132                         set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags);
1133
1134                         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
1135                                 goto eh_host_reset_lock;
1136                 }
1137                 clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1138         }
1139
1140         /* Waiting for command to be returned to OS.*/
1141         if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST) ==
1142                 QLA_SUCCESS)
1143                 ret = SUCCESS;
1144
1145 eh_host_reset_lock:
1146         qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
1147             (ret == FAILED) ? "failed" : "succeeded");
1148
1149         return ret;
1150 }
1151
1152 /*
1153 * qla2x00_loop_reset
1154 *      Issue loop reset.
1155 *
1156 * Input:
1157 *      ha = adapter block pointer.
1158 *
1159 * Returns:
1160 *      0 = success
1161 */
1162 int
1163 qla2x00_loop_reset(scsi_qla_host_t *vha)
1164 {
1165         int ret;
1166         struct fc_port *fcport;
1167         struct qla_hw_data *ha = vha->hw;
1168
1169         if (ql2xtargetreset == 1 && ha->flags.enable_target_reset) {
1170                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
1171                         if (fcport->port_type != FCT_TARGET)
1172                                 continue;
1173
1174                         ret = ha->isp_ops->target_reset(fcport, 0, 0);
1175                         if (ret != QLA_SUCCESS) {
1176                                 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1177                                     "target_reset=%d d_id=%x.\n", __func__,
1178                                     vha->host_no, ret, fcport->d_id.b24));
1179                         }
1180                 }
1181         }
1182
1183         if (ha->flags.enable_lip_full_login && !IS_QLA8XXX_TYPE(ha)) {
1184                 ret = qla2x00_full_login_lip(vha);
1185                 if (ret != QLA_SUCCESS) {
1186                         DEBUG2_3(printk("%s(%ld): failed: "
1187                             "full_login_lip=%d.\n", __func__, vha->host_no,
1188                             ret));
1189                 }
1190                 atomic_set(&vha->loop_state, LOOP_DOWN);
1191                 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1192                 qla2x00_mark_all_devices_lost(vha, 0);
1193                 qla2x00_wait_for_loop_ready(vha);
1194         }
1195
1196         if (ha->flags.enable_lip_reset) {
1197                 ret = qla2x00_lip_reset(vha);
1198                 if (ret != QLA_SUCCESS) {
1199                         DEBUG2_3(printk("%s(%ld): failed: "
1200                             "lip_reset=%d.\n", __func__, vha->host_no, ret));
1201                 } else
1202                         qla2x00_wait_for_loop_ready(vha);
1203         }
1204
1205         /* Issue marker command only when we are going to start the I/O */
1206         vha->marker_needed = 1;
1207
1208         return QLA_SUCCESS;
1209 }
1210
1211 void
1212 qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res)
1213 {
1214         int que, cnt;
1215         unsigned long flags;
1216         srb_t *sp;
1217         struct srb_ctx *ctx;
1218         struct qla_hw_data *ha = vha->hw;
1219         struct req_que *req;
1220
1221         spin_lock_irqsave(&ha->hardware_lock, flags);
1222         for (que = 0; que < ha->max_req_queues; que++) {
1223                 req = ha->req_q_map[que];
1224                 if (!req)
1225                         continue;
1226                 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
1227                         sp = req->outstanding_cmds[cnt];
1228                         if (sp) {
1229                                 req->outstanding_cmds[cnt] = NULL;
1230                                 if (!sp->ctx ||
1231                                         (sp->flags & SRB_FCP_CMND_DMA_VALID) ||
1232                                         IS_PROT_IO(sp)) {
1233                                         sp->cmd->result = res;
1234                                         qla2x00_sp_compl(ha, sp);
1235                                 } else {
1236                                         ctx = sp->ctx;
1237                                         if (ctx->type == SRB_LOGIN_CMD ||
1238                                             ctx->type == SRB_LOGOUT_CMD) {
1239                                                 ctx->u.iocb_cmd->free(sp);
1240                                         } else {
1241                                                 struct fc_bsg_job *bsg_job =
1242                                                     ctx->u.bsg_job;
1243                                                 if (bsg_job->request->msgcode
1244                                                     == FC_BSG_HST_CT)
1245                                                         kfree(sp->fcport);
1246                                                 bsg_job->req->errors = 0;
1247                                                 bsg_job->reply->result = res;
1248                                                 bsg_job->job_done(bsg_job);
1249                                                 kfree(sp->ctx);
1250                                                 mempool_free(sp,
1251                                                         ha->srb_mempool);
1252                                         }
1253                                 }
1254                         }
1255                 }
1256         }
1257         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1258 }
1259
1260 static int
1261 qla2xxx_slave_alloc(struct scsi_device *sdev)
1262 {
1263         struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1264
1265         if (!rport || fc_remote_port_chkready(rport))
1266                 return -ENXIO;
1267
1268         sdev->hostdata = *(fc_port_t **)rport->dd_data;
1269
1270         return 0;
1271 }
1272
1273 static int
1274 qla2xxx_slave_configure(struct scsi_device *sdev)
1275 {
1276         scsi_qla_host_t *vha = shost_priv(sdev->host);
1277         struct req_que *req = vha->req;
1278
1279         if (sdev->tagged_supported)
1280                 scsi_activate_tcq(sdev, req->max_q_depth);
1281         else
1282                 scsi_deactivate_tcq(sdev, req->max_q_depth);
1283         return 0;
1284 }
1285
1286 static void
1287 qla2xxx_slave_destroy(struct scsi_device *sdev)
1288 {
1289         sdev->hostdata = NULL;
1290 }
1291
1292 static void qla2x00_handle_queue_full(struct scsi_device *sdev, int qdepth)
1293 {
1294         fc_port_t *fcport = (struct fc_port *) sdev->hostdata;
1295
1296         if (!scsi_track_queue_full(sdev, qdepth))
1297                 return;
1298
1299         DEBUG2(qla_printk(KERN_INFO, fcport->vha->hw,
1300                 "scsi(%ld:%d:%d:%d): Queue depth adjusted-down to %d.\n",
1301                 fcport->vha->host_no, sdev->channel, sdev->id, sdev->lun,
1302                 sdev->queue_depth));
1303 }
1304
1305 static void qla2x00_adjust_sdev_qdepth_up(struct scsi_device *sdev, int qdepth)
1306 {
1307         fc_port_t *fcport = sdev->hostdata;
1308         struct scsi_qla_host *vha = fcport->vha;
1309         struct qla_hw_data *ha = vha->hw;
1310         struct req_que *req = NULL;
1311
1312         req = vha->req;
1313         if (!req)
1314                 return;
1315
1316         if (req->max_q_depth <= sdev->queue_depth || req->max_q_depth < qdepth)
1317                 return;
1318
1319         if (sdev->ordered_tags)
1320                 scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, qdepth);
1321         else
1322                 scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, qdepth);
1323
1324         DEBUG2(qla_printk(KERN_INFO, ha,
1325                "scsi(%ld:%d:%d:%d): Queue depth adjusted-up to %d.\n",
1326                fcport->vha->host_no, sdev->channel, sdev->id, sdev->lun,
1327                sdev->queue_depth));
1328 }
1329
1330 static int
1331 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
1332 {
1333         switch (reason) {
1334         case SCSI_QDEPTH_DEFAULT:
1335                 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1336                 break;
1337         case SCSI_QDEPTH_QFULL:
1338                 qla2x00_handle_queue_full(sdev, qdepth);
1339                 break;
1340         case SCSI_QDEPTH_RAMP_UP:
1341                 qla2x00_adjust_sdev_qdepth_up(sdev, qdepth);
1342                 break;
1343         default:
1344                 return -EOPNOTSUPP;
1345         }
1346
1347         return sdev->queue_depth;
1348 }
1349
1350 static int
1351 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1352 {
1353         if (sdev->tagged_supported) {
1354                 scsi_set_tag_type(sdev, tag_type);
1355                 if (tag_type)
1356                         scsi_activate_tcq(sdev, sdev->queue_depth);
1357                 else
1358                         scsi_deactivate_tcq(sdev, sdev->queue_depth);
1359         } else
1360                 tag_type = 0;
1361
1362         return tag_type;
1363 }
1364
1365 /**
1366  * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1367  * @ha: HA context
1368  *
1369  * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1370  * supported addressing method.
1371  */
1372 static void
1373 qla2x00_config_dma_addressing(struct qla_hw_data *ha)
1374 {
1375         /* Assume a 32bit DMA mask. */
1376         ha->flags.enable_64bit_addressing = 0;
1377
1378         if (!dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(64))) {
1379                 /* Any upper-dword bits set? */
1380                 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1381                     !pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
1382                         /* Ok, a 64bit DMA mask is applicable. */
1383                         ha->flags.enable_64bit_addressing = 1;
1384                         ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1385                         ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1386                         return;
1387                 }
1388         }
1389
1390         dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(32));
1391         pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(32));
1392 }
1393
1394 static void
1395 qla2x00_enable_intrs(struct qla_hw_data *ha)
1396 {
1397         unsigned long flags = 0;
1398         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1399
1400         spin_lock_irqsave(&ha->hardware_lock, flags);
1401         ha->interrupts_on = 1;
1402         /* enable risc and host interrupts */
1403         WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1404         RD_REG_WORD(&reg->ictrl);
1405         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1406
1407 }
1408
1409 static void
1410 qla2x00_disable_intrs(struct qla_hw_data *ha)
1411 {
1412         unsigned long flags = 0;
1413         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1414
1415         spin_lock_irqsave(&ha->hardware_lock, flags);
1416         ha->interrupts_on = 0;
1417         /* disable risc and host interrupts */
1418         WRT_REG_WORD(&reg->ictrl, 0);
1419         RD_REG_WORD(&reg->ictrl);
1420         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1421 }
1422
1423 static void
1424 qla24xx_enable_intrs(struct qla_hw_data *ha)
1425 {
1426         unsigned long flags = 0;
1427         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1428
1429         spin_lock_irqsave(&ha->hardware_lock, flags);
1430         ha->interrupts_on = 1;
1431         WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1432         RD_REG_DWORD(&reg->ictrl);
1433         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1434 }
1435
1436 static void
1437 qla24xx_disable_intrs(struct qla_hw_data *ha)
1438 {
1439         unsigned long flags = 0;
1440         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1441
1442         if (IS_NOPOLLING_TYPE(ha))
1443                 return;
1444         spin_lock_irqsave(&ha->hardware_lock, flags);
1445         ha->interrupts_on = 0;
1446         WRT_REG_DWORD(&reg->ictrl, 0);
1447         RD_REG_DWORD(&reg->ictrl);
1448         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1449 }
1450
1451 static struct isp_operations qla2100_isp_ops = {
1452         .pci_config             = qla2100_pci_config,
1453         .reset_chip             = qla2x00_reset_chip,
1454         .chip_diag              = qla2x00_chip_diag,
1455         .config_rings           = qla2x00_config_rings,
1456         .reset_adapter          = qla2x00_reset_adapter,
1457         .nvram_config           = qla2x00_nvram_config,
1458         .update_fw_options      = qla2x00_update_fw_options,
1459         .load_risc              = qla2x00_load_risc,
1460         .pci_info_str           = qla2x00_pci_info_str,
1461         .fw_version_str         = qla2x00_fw_version_str,
1462         .intr_handler           = qla2100_intr_handler,
1463         .enable_intrs           = qla2x00_enable_intrs,
1464         .disable_intrs          = qla2x00_disable_intrs,
1465         .abort_command          = qla2x00_abort_command,
1466         .target_reset           = qla2x00_abort_target,
1467         .lun_reset              = qla2x00_lun_reset,
1468         .fabric_login           = qla2x00_login_fabric,
1469         .fabric_logout          = qla2x00_fabric_logout,
1470         .calc_req_entries       = qla2x00_calc_iocbs_32,
1471         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1472         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1473         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1474         .read_nvram             = qla2x00_read_nvram_data,
1475         .write_nvram            = qla2x00_write_nvram_data,
1476         .fw_dump                = qla2100_fw_dump,
1477         .beacon_on              = NULL,
1478         .beacon_off             = NULL,
1479         .beacon_blink           = NULL,
1480         .read_optrom            = qla2x00_read_optrom_data,
1481         .write_optrom           = qla2x00_write_optrom_data,
1482         .get_flash_version      = qla2x00_get_flash_version,
1483         .start_scsi             = qla2x00_start_scsi,
1484         .abort_isp              = qla2x00_abort_isp,
1485 };
1486
1487 static struct isp_operations qla2300_isp_ops = {
1488         .pci_config             = qla2300_pci_config,
1489         .reset_chip             = qla2x00_reset_chip,
1490         .chip_diag              = qla2x00_chip_diag,
1491         .config_rings           = qla2x00_config_rings,
1492         .reset_adapter          = qla2x00_reset_adapter,
1493         .nvram_config           = qla2x00_nvram_config,
1494         .update_fw_options      = qla2x00_update_fw_options,
1495         .load_risc              = qla2x00_load_risc,
1496         .pci_info_str           = qla2x00_pci_info_str,
1497         .fw_version_str         = qla2x00_fw_version_str,
1498         .intr_handler           = qla2300_intr_handler,
1499         .enable_intrs           = qla2x00_enable_intrs,
1500         .disable_intrs          = qla2x00_disable_intrs,
1501         .abort_command          = qla2x00_abort_command,
1502         .target_reset           = qla2x00_abort_target,
1503         .lun_reset              = qla2x00_lun_reset,
1504         .fabric_login           = qla2x00_login_fabric,
1505         .fabric_logout          = qla2x00_fabric_logout,
1506         .calc_req_entries       = qla2x00_calc_iocbs_32,
1507         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1508         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1509         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1510         .read_nvram             = qla2x00_read_nvram_data,
1511         .write_nvram            = qla2x00_write_nvram_data,
1512         .fw_dump                = qla2300_fw_dump,
1513         .beacon_on              = qla2x00_beacon_on,
1514         .beacon_off             = qla2x00_beacon_off,
1515         .beacon_blink           = qla2x00_beacon_blink,
1516         .read_optrom            = qla2x00_read_optrom_data,
1517         .write_optrom           = qla2x00_write_optrom_data,
1518         .get_flash_version      = qla2x00_get_flash_version,
1519         .start_scsi             = qla2x00_start_scsi,
1520         .abort_isp              = qla2x00_abort_isp,
1521 };
1522
1523 static struct isp_operations qla24xx_isp_ops = {
1524         .pci_config             = qla24xx_pci_config,
1525         .reset_chip             = qla24xx_reset_chip,
1526         .chip_diag              = qla24xx_chip_diag,
1527         .config_rings           = qla24xx_config_rings,
1528         .reset_adapter          = qla24xx_reset_adapter,
1529         .nvram_config           = qla24xx_nvram_config,
1530         .update_fw_options      = qla24xx_update_fw_options,
1531         .load_risc              = qla24xx_load_risc,
1532         .pci_info_str           = qla24xx_pci_info_str,
1533         .fw_version_str         = qla24xx_fw_version_str,
1534         .intr_handler           = qla24xx_intr_handler,
1535         .enable_intrs           = qla24xx_enable_intrs,
1536         .disable_intrs          = qla24xx_disable_intrs,
1537         .abort_command          = qla24xx_abort_command,
1538         .target_reset           = qla24xx_abort_target,
1539         .lun_reset              = qla24xx_lun_reset,
1540         .fabric_login           = qla24xx_login_fabric,
1541         .fabric_logout          = qla24xx_fabric_logout,
1542         .calc_req_entries       = NULL,
1543         .build_iocbs            = NULL,
1544         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1545         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1546         .read_nvram             = qla24xx_read_nvram_data,
1547         .write_nvram            = qla24xx_write_nvram_data,
1548         .fw_dump                = qla24xx_fw_dump,
1549         .beacon_on              = qla24xx_beacon_on,
1550         .beacon_off             = qla24xx_beacon_off,
1551         .beacon_blink           = qla24xx_beacon_blink,
1552         .read_optrom            = qla24xx_read_optrom_data,
1553         .write_optrom           = qla24xx_write_optrom_data,
1554         .get_flash_version      = qla24xx_get_flash_version,
1555         .start_scsi             = qla24xx_start_scsi,
1556         .abort_isp              = qla2x00_abort_isp,
1557 };
1558
1559 static struct isp_operations qla25xx_isp_ops = {
1560         .pci_config             = qla25xx_pci_config,
1561         .reset_chip             = qla24xx_reset_chip,
1562         .chip_diag              = qla24xx_chip_diag,
1563         .config_rings           = qla24xx_config_rings,
1564         .reset_adapter          = qla24xx_reset_adapter,
1565         .nvram_config           = qla24xx_nvram_config,
1566         .update_fw_options      = qla24xx_update_fw_options,
1567         .load_risc              = qla24xx_load_risc,
1568         .pci_info_str           = qla24xx_pci_info_str,
1569         .fw_version_str         = qla24xx_fw_version_str,
1570         .intr_handler           = qla24xx_intr_handler,
1571         .enable_intrs           = qla24xx_enable_intrs,
1572         .disable_intrs          = qla24xx_disable_intrs,
1573         .abort_command          = qla24xx_abort_command,
1574         .target_reset           = qla24xx_abort_target,
1575         .lun_reset              = qla24xx_lun_reset,
1576         .fabric_login           = qla24xx_login_fabric,
1577         .fabric_logout          = qla24xx_fabric_logout,
1578         .calc_req_entries       = NULL,
1579         .build_iocbs            = NULL,
1580         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1581         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1582         .read_nvram             = qla25xx_read_nvram_data,
1583         .write_nvram            = qla25xx_write_nvram_data,
1584         .fw_dump                = qla25xx_fw_dump,
1585         .beacon_on              = qla24xx_beacon_on,
1586         .beacon_off             = qla24xx_beacon_off,
1587         .beacon_blink           = qla24xx_beacon_blink,
1588         .read_optrom            = qla25xx_read_optrom_data,
1589         .write_optrom           = qla24xx_write_optrom_data,
1590         .get_flash_version      = qla24xx_get_flash_version,
1591         .start_scsi             = qla24xx_dif_start_scsi,
1592         .abort_isp              = qla2x00_abort_isp,
1593 };
1594
1595 static struct isp_operations qla81xx_isp_ops = {
1596         .pci_config             = qla25xx_pci_config,
1597         .reset_chip             = qla24xx_reset_chip,
1598         .chip_diag              = qla24xx_chip_diag,
1599         .config_rings           = qla24xx_config_rings,
1600         .reset_adapter          = qla24xx_reset_adapter,
1601         .nvram_config           = qla81xx_nvram_config,
1602         .update_fw_options      = qla81xx_update_fw_options,
1603         .load_risc              = qla81xx_load_risc,
1604         .pci_info_str           = qla24xx_pci_info_str,
1605         .fw_version_str         = qla24xx_fw_version_str,
1606         .intr_handler           = qla24xx_intr_handler,
1607         .enable_intrs           = qla24xx_enable_intrs,
1608         .disable_intrs          = qla24xx_disable_intrs,
1609         .abort_command          = qla24xx_abort_command,
1610         .target_reset           = qla24xx_abort_target,
1611         .lun_reset              = qla24xx_lun_reset,
1612         .fabric_login           = qla24xx_login_fabric,
1613         .fabric_logout          = qla24xx_fabric_logout,
1614         .calc_req_entries       = NULL,
1615         .build_iocbs            = NULL,
1616         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1617         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1618         .read_nvram             = NULL,
1619         .write_nvram            = NULL,
1620         .fw_dump                = qla81xx_fw_dump,
1621         .beacon_on              = qla24xx_beacon_on,
1622         .beacon_off             = qla24xx_beacon_off,
1623         .beacon_blink           = qla24xx_beacon_blink,
1624         .read_optrom            = qla25xx_read_optrom_data,
1625         .write_optrom           = qla24xx_write_optrom_data,
1626         .get_flash_version      = qla24xx_get_flash_version,
1627         .start_scsi             = qla24xx_dif_start_scsi,
1628         .abort_isp              = qla2x00_abort_isp,
1629 };
1630
1631 static struct isp_operations qla82xx_isp_ops = {
1632         .pci_config             = qla82xx_pci_config,
1633         .reset_chip             = qla82xx_reset_chip,
1634         .chip_diag              = qla24xx_chip_diag,
1635         .config_rings           = qla82xx_config_rings,
1636         .reset_adapter          = qla24xx_reset_adapter,
1637         .nvram_config           = qla81xx_nvram_config,
1638         .update_fw_options      = qla24xx_update_fw_options,
1639         .load_risc              = qla82xx_load_risc,
1640         .pci_info_str           = qla82xx_pci_info_str,
1641         .fw_version_str         = qla24xx_fw_version_str,
1642         .intr_handler           = qla82xx_intr_handler,
1643         .enable_intrs           = qla82xx_enable_intrs,
1644         .disable_intrs          = qla82xx_disable_intrs,
1645         .abort_command          = qla24xx_abort_command,
1646         .target_reset           = qla24xx_abort_target,
1647         .lun_reset              = qla24xx_lun_reset,
1648         .fabric_login           = qla24xx_login_fabric,
1649         .fabric_logout          = qla24xx_fabric_logout,
1650         .calc_req_entries       = NULL,
1651         .build_iocbs            = NULL,
1652         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1653         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1654         .read_nvram             = qla24xx_read_nvram_data,
1655         .write_nvram            = qla24xx_write_nvram_data,
1656         .fw_dump                = qla24xx_fw_dump,
1657         .beacon_on              = qla24xx_beacon_on,
1658         .beacon_off             = qla24xx_beacon_off,
1659         .beacon_blink           = qla24xx_beacon_blink,
1660         .read_optrom            = qla82xx_read_optrom_data,
1661         .write_optrom           = qla82xx_write_optrom_data,
1662         .get_flash_version      = qla24xx_get_flash_version,
1663         .start_scsi             = qla82xx_start_scsi,
1664         .abort_isp              = qla82xx_abort_isp,
1665 };
1666
1667 static inline void
1668 qla2x00_set_isp_flags(struct qla_hw_data *ha)
1669 {
1670         ha->device_type = DT_EXTENDED_IDS;
1671         switch (ha->pdev->device) {
1672         case PCI_DEVICE_ID_QLOGIC_ISP2100:
1673                 ha->device_type |= DT_ISP2100;
1674                 ha->device_type &= ~DT_EXTENDED_IDS;
1675                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1676                 break;
1677         case PCI_DEVICE_ID_QLOGIC_ISP2200:
1678                 ha->device_type |= DT_ISP2200;
1679                 ha->device_type &= ~DT_EXTENDED_IDS;
1680                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1681                 break;
1682         case PCI_DEVICE_ID_QLOGIC_ISP2300:
1683                 ha->device_type |= DT_ISP2300;
1684                 ha->device_type |= DT_ZIO_SUPPORTED;
1685                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1686                 break;
1687         case PCI_DEVICE_ID_QLOGIC_ISP2312:
1688                 ha->device_type |= DT_ISP2312;
1689                 ha->device_type |= DT_ZIO_SUPPORTED;
1690                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1691                 break;
1692         case PCI_DEVICE_ID_QLOGIC_ISP2322:
1693                 ha->device_type |= DT_ISP2322;
1694                 ha->device_type |= DT_ZIO_SUPPORTED;
1695                 if (ha->pdev->subsystem_vendor == 0x1028 &&
1696                     ha->pdev->subsystem_device == 0x0170)
1697                         ha->device_type |= DT_OEM_001;
1698                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1699                 break;
1700         case PCI_DEVICE_ID_QLOGIC_ISP6312:
1701                 ha->device_type |= DT_ISP6312;
1702                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1703                 break;
1704         case PCI_DEVICE_ID_QLOGIC_ISP6322:
1705                 ha->device_type |= DT_ISP6322;
1706                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1707                 break;
1708         case PCI_DEVICE_ID_QLOGIC_ISP2422:
1709                 ha->device_type |= DT_ISP2422;
1710                 ha->device_type |= DT_ZIO_SUPPORTED;
1711                 ha->device_type |= DT_FWI2;
1712                 ha->device_type |= DT_IIDMA;
1713                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1714                 break;
1715         case PCI_DEVICE_ID_QLOGIC_ISP2432:
1716                 ha->device_type |= DT_ISP2432;
1717                 ha->device_type |= DT_ZIO_SUPPORTED;
1718                 ha->device_type |= DT_FWI2;
1719                 ha->device_type |= DT_IIDMA;
1720                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1721                 break;
1722         case PCI_DEVICE_ID_QLOGIC_ISP8432:
1723                 ha->device_type |= DT_ISP8432;
1724                 ha->device_type |= DT_ZIO_SUPPORTED;
1725                 ha->device_type |= DT_FWI2;
1726                 ha->device_type |= DT_IIDMA;
1727                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1728                 break;
1729         case PCI_DEVICE_ID_QLOGIC_ISP5422:
1730                 ha->device_type |= DT_ISP5422;
1731                 ha->device_type |= DT_FWI2;
1732                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1733                 break;
1734         case PCI_DEVICE_ID_QLOGIC_ISP5432:
1735                 ha->device_type |= DT_ISP5432;
1736                 ha->device_type |= DT_FWI2;
1737                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1738                 break;
1739         case PCI_DEVICE_ID_QLOGIC_ISP2532:
1740                 ha->device_type |= DT_ISP2532;
1741                 ha->device_type |= DT_ZIO_SUPPORTED;
1742                 ha->device_type |= DT_FWI2;
1743                 ha->device_type |= DT_IIDMA;
1744                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1745                 break;
1746         case PCI_DEVICE_ID_QLOGIC_ISP8001:
1747                 ha->device_type |= DT_ISP8001;
1748                 ha->device_type |= DT_ZIO_SUPPORTED;
1749                 ha->device_type |= DT_FWI2;
1750                 ha->device_type |= DT_IIDMA;
1751                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1752                 break;
1753         case PCI_DEVICE_ID_QLOGIC_ISP8021:
1754                 ha->device_type |= DT_ISP8021;
1755                 ha->device_type |= DT_ZIO_SUPPORTED;
1756                 ha->device_type |= DT_FWI2;
1757                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1758                 /* Initialize 82XX ISP flags */
1759                 qla82xx_init_flags(ha);
1760                 break;
1761         }
1762
1763         if (IS_QLA82XX(ha))
1764                 ha->port_no = !(ha->portnum & 1);
1765         else
1766                 /* Get adapter physical port no from interrupt pin register. */
1767                 pci_read_config_byte(ha->pdev, PCI_INTERRUPT_PIN, &ha->port_no);
1768
1769         if (ha->port_no & 1)
1770                 ha->flags.port0 = 1;
1771         else
1772                 ha->flags.port0 = 0;
1773 }
1774
1775 static int
1776 qla2x00_iospace_config(struct qla_hw_data *ha)
1777 {
1778         resource_size_t pio;
1779         uint16_t msix;
1780         int cpus;
1781
1782         if (IS_QLA82XX(ha))
1783                 return qla82xx_iospace_config(ha);
1784
1785         if (pci_request_selected_regions(ha->pdev, ha->bars,
1786             QLA2XXX_DRIVER_NAME)) {
1787                 qla_printk(KERN_WARNING, ha,
1788                     "Failed to reserve PIO/MMIO regions (%s)\n",
1789                     pci_name(ha->pdev));
1790
1791                 goto iospace_error_exit;
1792         }
1793         if (!(ha->bars & 1))
1794                 goto skip_pio;
1795
1796         /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1797         pio = pci_resource_start(ha->pdev, 0);
1798         if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
1799                 if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1800                         qla_printk(KERN_WARNING, ha,
1801                             "Invalid PCI I/O region size (%s)...\n",
1802                                 pci_name(ha->pdev));
1803                         pio = 0;
1804                 }
1805         } else {
1806                 qla_printk(KERN_WARNING, ha,
1807                     "region #0 not a PIO resource (%s)...\n",
1808                     pci_name(ha->pdev));
1809                 pio = 0;
1810         }
1811         ha->pio_address = pio;
1812
1813 skip_pio:
1814         /* Use MMIO operations for all accesses. */
1815         if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
1816                 qla_printk(KERN_ERR, ha,
1817                     "region #1 not an MMIO resource (%s), aborting\n",
1818                     pci_name(ha->pdev));
1819                 goto iospace_error_exit;
1820         }
1821         if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
1822                 qla_printk(KERN_ERR, ha,
1823                     "Invalid PCI mem region size (%s), aborting\n",
1824                         pci_name(ha->pdev));
1825                 goto iospace_error_exit;
1826         }
1827
1828         ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
1829         if (!ha->iobase) {
1830                 qla_printk(KERN_ERR, ha,
1831                     "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1832
1833                 goto iospace_error_exit;
1834         }
1835
1836         /* Determine queue resources */
1837         ha->max_req_queues = ha->max_rsp_queues = 1;
1838         if ((ql2xmaxqueues <= 1 && !ql2xmultique_tag) ||
1839                 (ql2xmaxqueues > 1 && ql2xmultique_tag) ||
1840                 (!IS_QLA25XX(ha) && !IS_QLA81XX(ha)))
1841                 goto mqiobase_exit;
1842
1843         ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 3),
1844                         pci_resource_len(ha->pdev, 3));
1845         if (ha->mqiobase) {
1846                 /* Read MSIX vector size of the board */
1847                 pci_read_config_word(ha->pdev, QLA_PCI_MSIX_CONTROL, &msix);
1848                 ha->msix_count = msix;
1849                 /* Max queues are bounded by available msix vectors */
1850                 /* queue 0 uses two msix vectors */
1851                 if (ql2xmultique_tag) {
1852                         cpus = num_online_cpus();
1853                         ha->max_rsp_queues = (ha->msix_count - 1 > cpus) ?
1854                                 (cpus + 1) : (ha->msix_count - 1);
1855                         ha->max_req_queues = 2;
1856                 } else if (ql2xmaxqueues > 1) {
1857                         ha->max_req_queues = ql2xmaxqueues > QLA_MQ_SIZE ?
1858                                                 QLA_MQ_SIZE : ql2xmaxqueues;
1859                         DEBUG2(qla_printk(KERN_INFO, ha, "QoS mode set, max no"
1860                         " of request queues:%d\n", ha->max_req_queues));
1861                 }
1862                 qla_printk(KERN_INFO, ha,
1863                         "MSI-X vector count: %d\n", msix);
1864         } else
1865                 qla_printk(KERN_INFO, ha, "BAR 3 not enabled\n");
1866
1867 mqiobase_exit:
1868         ha->msix_count = ha->max_rsp_queues + 1;
1869         return (0);
1870
1871 iospace_error_exit:
1872         return (-ENOMEM);
1873 }
1874
1875 static void
1876 qla2xxx_scan_start(struct Scsi_Host *shost)
1877 {
1878         scsi_qla_host_t *vha = shost_priv(shost);
1879
1880         if (vha->hw->flags.running_gold_fw)
1881                 return;
1882
1883         set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1884         set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1885         set_bit(RSCN_UPDATE, &vha->dpc_flags);
1886         set_bit(NPIV_CONFIG_NEEDED, &vha->dpc_flags);
1887 }
1888
1889 static int
1890 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1891 {
1892         scsi_qla_host_t *vha = shost_priv(shost);
1893
1894         if (!vha->host)
1895                 return 1;
1896         if (time > vha->hw->loop_reset_delay * HZ)
1897                 return 1;
1898
1899         return atomic_read(&vha->loop_state) == LOOP_READY;
1900 }
1901
1902 /*
1903  * PCI driver interface
1904  */
1905 static int __devinit
1906 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1907 {
1908         int     ret = -ENODEV;
1909         struct Scsi_Host *host;
1910         scsi_qla_host_t *base_vha = NULL;
1911         struct qla_hw_data *ha;
1912         char pci_info[30];
1913         char fw_str[30];
1914         struct scsi_host_template *sht;
1915         int bars, max_id, mem_only = 0;
1916         uint16_t req_length = 0, rsp_length = 0;
1917         struct req_que *req = NULL;
1918         struct rsp_que *rsp = NULL;
1919
1920         bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
1921         sht = &qla2xxx_driver_template;
1922         if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1923             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1924             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8432 ||
1925             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1926             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
1927             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532 ||
1928             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8001 ||
1929             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8021) {
1930                 bars = pci_select_bars(pdev, IORESOURCE_MEM);
1931                 mem_only = 1;
1932         }
1933
1934         if (mem_only) {
1935                 if (pci_enable_device_mem(pdev))
1936                         goto probe_out;
1937         } else {
1938                 if (pci_enable_device(pdev))
1939                         goto probe_out;
1940         }
1941
1942         /* This may fail but that's ok */
1943         pci_enable_pcie_error_reporting(pdev);
1944
1945         ha = kzalloc(sizeof(struct qla_hw_data), GFP_KERNEL);
1946         if (!ha) {
1947                 DEBUG(printk("Unable to allocate memory for ha\n"));
1948                 goto probe_out;
1949         }
1950         ha->pdev = pdev;
1951
1952         /* Clear our data area */
1953         ha->bars = bars;
1954         ha->mem_only = mem_only;
1955         spin_lock_init(&ha->hardware_lock);
1956         spin_lock_init(&ha->vport_slock);
1957
1958         /* Set ISP-type information. */
1959         qla2x00_set_isp_flags(ha);
1960
1961         /* Set EEH reset type to fundamental if required by hba */
1962         if ( IS_QLA24XX(ha) || IS_QLA25XX(ha) || IS_QLA81XX(ha)) {
1963                 pdev->needs_freset = 1;
1964         }
1965
1966         /* Configure PCI I/O space */
1967         ret = qla2x00_iospace_config(ha);
1968         if (ret)
1969                 goto probe_hw_failed;
1970
1971         qla_printk(KERN_INFO, ha,
1972             "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1973             ha->iobase);
1974
1975         ha->prev_topology = 0;
1976         ha->init_cb_size = sizeof(init_cb_t);
1977         ha->link_data_rate = PORT_SPEED_UNKNOWN;
1978         ha->optrom_size = OPTROM_SIZE_2300;
1979
1980         /* Assign ISP specific operations. */
1981         max_id = MAX_TARGETS_2200;
1982         if (IS_QLA2100(ha)) {
1983                 max_id = MAX_TARGETS_2100;
1984                 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1985                 req_length = REQUEST_ENTRY_CNT_2100;
1986                 rsp_length = RESPONSE_ENTRY_CNT_2100;
1987                 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
1988                 ha->gid_list_info_size = 4;
1989                 ha->flash_conf_off = ~0;
1990                 ha->flash_data_off = ~0;
1991                 ha->nvram_conf_off = ~0;
1992                 ha->nvram_data_off = ~0;
1993                 ha->isp_ops = &qla2100_isp_ops;
1994         } else if (IS_QLA2200(ha)) {
1995                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1996                 req_length = REQUEST_ENTRY_CNT_2200;
1997                 rsp_length = RESPONSE_ENTRY_CNT_2100;
1998                 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
1999                 ha->gid_list_info_size = 4;
2000                 ha->flash_conf_off = ~0;
2001                 ha->flash_data_off = ~0;
2002                 ha->nvram_conf_off = ~0;
2003                 ha->nvram_data_off = ~0;
2004                 ha->isp_ops = &qla2100_isp_ops;
2005         } else if (IS_QLA23XX(ha)) {
2006                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2007                 req_length = REQUEST_ENTRY_CNT_2200;
2008                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2009                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2010                 ha->gid_list_info_size = 6;
2011                 if (IS_QLA2322(ha) || IS_QLA6322(ha))
2012                         ha->optrom_size = OPTROM_SIZE_2322;
2013                 ha->flash_conf_off = ~0;
2014                 ha->flash_data_off = ~0;
2015                 ha->nvram_conf_off = ~0;
2016                 ha->nvram_data_off = ~0;
2017                 ha->isp_ops = &qla2300_isp_ops;
2018         } else if (IS_QLA24XX_TYPE(ha)) {
2019                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2020                 req_length = REQUEST_ENTRY_CNT_24XX;
2021                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2022                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2023                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
2024                 ha->gid_list_info_size = 8;
2025                 ha->optrom_size = OPTROM_SIZE_24XX;
2026                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA24XX;
2027                 ha->isp_ops = &qla24xx_isp_ops;
2028                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2029                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2030                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2031                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2032         } else if (IS_QLA25XX(ha)) {
2033                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2034                 req_length = REQUEST_ENTRY_CNT_24XX;
2035                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2036                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2037                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
2038                 ha->gid_list_info_size = 8;
2039                 ha->optrom_size = OPTROM_SIZE_25XX;
2040                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2041                 ha->isp_ops = &qla25xx_isp_ops;
2042                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2043                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2044                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2045                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2046         } else if (IS_QLA81XX(ha)) {
2047                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2048                 req_length = REQUEST_ENTRY_CNT_24XX;
2049                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2050                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2051                 ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2052                 ha->gid_list_info_size = 8;
2053                 ha->optrom_size = OPTROM_SIZE_81XX;
2054                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2055                 ha->isp_ops = &qla81xx_isp_ops;
2056                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
2057                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
2058                 ha->nvram_conf_off = ~0;
2059                 ha->nvram_data_off = ~0;
2060         } else if (IS_QLA82XX(ha)) {
2061                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2062                 req_length = REQUEST_ENTRY_CNT_82XX;
2063                 rsp_length = RESPONSE_ENTRY_CNT_82XX;
2064                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2065                 ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2066                 ha->gid_list_info_size = 8;
2067                 ha->optrom_size = OPTROM_SIZE_82XX;
2068                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2069                 ha->isp_ops = &qla82xx_isp_ops;
2070                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2071                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2072                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2073                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2074         }
2075
2076         mutex_init(&ha->vport_lock);
2077         init_completion(&ha->mbx_cmd_comp);
2078         complete(&ha->mbx_cmd_comp);
2079         init_completion(&ha->mbx_intr_comp);
2080         init_completion(&ha->dcbx_comp);
2081
2082         set_bit(0, (unsigned long *) ha->vp_idx_map);
2083
2084         qla2x00_config_dma_addressing(ha);
2085         ret = qla2x00_mem_alloc(ha, req_length, rsp_length, &req, &rsp);
2086         if (!ret) {
2087                 qla_printk(KERN_WARNING, ha,
2088                     "[ERROR] Failed to allocate memory for adapter\n");
2089
2090                 goto probe_hw_failed;
2091         }
2092
2093         req->max_q_depth = MAX_Q_DEPTH;
2094         if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
2095                 req->max_q_depth = ql2xmaxqdepth;
2096
2097
2098         base_vha = qla2x00_create_host(sht, ha);
2099         if (!base_vha) {
2100                 qla_printk(KERN_WARNING, ha,
2101                     "[ERROR] Failed to allocate memory for scsi_host\n");
2102
2103                 ret = -ENOMEM;
2104                 qla2x00_mem_free(ha);
2105                 qla2x00_free_req_que(ha, req);
2106                 qla2x00_free_rsp_que(ha, rsp);
2107                 goto probe_hw_failed;
2108         }
2109
2110         pci_set_drvdata(pdev, base_vha);
2111
2112         host = base_vha->host;
2113         base_vha->req = req;
2114         host->can_queue = req->length + 128;
2115         if (IS_QLA2XXX_MIDTYPE(ha))
2116                 base_vha->mgmt_svr_loop_id = 10 + base_vha->vp_idx;
2117         else
2118                 base_vha->mgmt_svr_loop_id = MANAGEMENT_SERVER +
2119                                                 base_vha->vp_idx;
2120
2121         /* Set the SG table size based on ISP type */
2122         if (!IS_FWI2_CAPABLE(ha)) {
2123                 if (IS_QLA2100(ha))
2124                         host->sg_tablesize = 32;
2125         } else {
2126                 if (!IS_QLA82XX(ha))
2127                         host->sg_tablesize = QLA_SG_ALL;
2128         }
2129
2130         host->max_id = max_id;
2131         host->this_id = 255;
2132         host->cmd_per_lun = 3;
2133         host->unique_id = host->host_no;
2134         if ((IS_QLA25XX(ha) || IS_QLA81XX(ha)) && ql2xenabledif)
2135                 host->max_cmd_len = 32;
2136         else
2137                 host->max_cmd_len = MAX_CMDSZ;
2138         host->max_channel = MAX_BUSES - 1;
2139         host->max_lun = MAX_LUNS;
2140         host->transportt = qla2xxx_transport_template;
2141         sht->vendor_id = (SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC);
2142
2143         /* Set up the irqs */
2144         ret = qla2x00_request_irqs(ha, rsp);
2145         if (ret)
2146                 goto probe_init_failed;
2147
2148         pci_save_state(pdev);
2149
2150         /* Alloc arrays of request and response ring ptrs */
2151 que_init:
2152         if (!qla2x00_alloc_queues(ha)) {
2153                 qla_printk(KERN_WARNING, ha,
2154                 "[ERROR] Failed to allocate memory for queue"
2155                 " pointers\n");
2156                 goto probe_init_failed;
2157         }
2158
2159         ha->rsp_q_map[0] = rsp;
2160         ha->req_q_map[0] = req;
2161         rsp->req = req;
2162         req->rsp = rsp;
2163         set_bit(0, ha->req_qid_map);
2164         set_bit(0, ha->rsp_qid_map);
2165         /* FWI2-capable only. */
2166         req->req_q_in = &ha->iobase->isp24.req_q_in;
2167         req->req_q_out = &ha->iobase->isp24.req_q_out;
2168         rsp->rsp_q_in = &ha->iobase->isp24.rsp_q_in;
2169         rsp->rsp_q_out = &ha->iobase->isp24.rsp_q_out;
2170         if (ha->mqenable) {
2171                 req->req_q_in = &ha->mqiobase->isp25mq.req_q_in;
2172                 req->req_q_out = &ha->mqiobase->isp25mq.req_q_out;
2173                 rsp->rsp_q_in = &ha->mqiobase->isp25mq.rsp_q_in;
2174                 rsp->rsp_q_out =  &ha->mqiobase->isp25mq.rsp_q_out;
2175         }
2176
2177         if (IS_QLA82XX(ha)) {
2178                 req->req_q_out = &ha->iobase->isp82.req_q_out[0];
2179                 rsp->rsp_q_in = &ha->iobase->isp82.rsp_q_in[0];
2180                 rsp->rsp_q_out = &ha->iobase->isp82.rsp_q_out[0];
2181         }
2182
2183         if (qla2x00_initialize_adapter(base_vha)) {
2184                 qla_printk(KERN_WARNING, ha,
2185                     "Failed to initialize adapter\n");
2186
2187                 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
2188                     "Adapter flags %x.\n",
2189                     base_vha->host_no, base_vha->device_flags));
2190
2191                 if (IS_QLA82XX(ha)) {
2192                         qla82xx_idc_lock(ha);
2193                         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
2194                                 QLA82XX_DEV_FAILED);
2195                         qla82xx_idc_unlock(ha);
2196                         qla_printk(KERN_INFO, ha, "HW State: FAILED\n");
2197                 }
2198
2199                 ret = -ENODEV;
2200                 goto probe_failed;
2201         }
2202
2203         if (ha->mqenable) {
2204                 if (qla25xx_setup_mode(base_vha)) {
2205                         qla_printk(KERN_WARNING, ha,
2206                                 "Can't create queues, falling back to single"
2207                                 " queue mode\n");
2208                         goto que_init;
2209                 }
2210         }
2211
2212         if (ha->flags.running_gold_fw)
2213                 goto skip_dpc;
2214
2215         /*
2216          * Startup the kernel thread for this host adapter
2217          */
2218         ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
2219                         "%s_dpc", base_vha->host_str);
2220         if (IS_ERR(ha->dpc_thread)) {
2221                 qla_printk(KERN_WARNING, ha,
2222                     "Unable to start DPC thread!\n");
2223                 ret = PTR_ERR(ha->dpc_thread);
2224                 goto probe_failed;
2225         }
2226
2227 skip_dpc:
2228         list_add_tail(&base_vha->list, &ha->vp_list);
2229         base_vha->host->irq = ha->pdev->irq;
2230
2231         /* Initialized the timer */
2232         qla2x00_start_timer(base_vha, qla2x00_timer, WATCH_INTERVAL);
2233
2234         DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
2235             base_vha->host_no, ha));
2236
2237         if ((IS_QLA25XX(ha) || IS_QLA81XX(ha)) && ql2xenabledif) {
2238                 if (ha->fw_attributes & BIT_4) {
2239                         base_vha->flags.difdix_supported = 1;
2240                         DEBUG18(qla_printk(KERN_INFO, ha,
2241                             "Registering for DIF/DIX type 1 and 3"
2242                             " protection.\n"));
2243                         scsi_host_set_prot(host,
2244                             SHOST_DIF_TYPE1_PROTECTION
2245                             | SHOST_DIF_TYPE2_PROTECTION
2246                             | SHOST_DIF_TYPE3_PROTECTION
2247                             | SHOST_DIX_TYPE1_PROTECTION
2248                             | SHOST_DIX_TYPE2_PROTECTION
2249                             | SHOST_DIX_TYPE3_PROTECTION);
2250                         scsi_host_set_guard(host, SHOST_DIX_GUARD_CRC);
2251                 } else
2252                         base_vha->flags.difdix_supported = 0;
2253         }
2254
2255         ha->isp_ops->enable_intrs(ha);
2256
2257         ret = scsi_add_host(host, &pdev->dev);
2258         if (ret)
2259                 goto probe_failed;
2260
2261         base_vha->flags.init_done = 1;
2262         base_vha->flags.online = 1;
2263
2264         scsi_scan_host(host);
2265
2266         qla2x00_alloc_sysfs_attr(base_vha);
2267
2268         qla2x00_init_host_attr(base_vha);
2269
2270         qla2x00_dfs_setup(base_vha);
2271
2272         qla_printk(KERN_INFO, ha, "\n"
2273             " QLogic Fibre Channel HBA Driver: %s\n"
2274             "  QLogic %s - %s\n"
2275             "  ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
2276             qla2x00_version_str, ha->model_number,
2277             ha->model_desc ? ha->model_desc : "", pdev->device,
2278             ha->isp_ops->pci_info_str(base_vha, pci_info), pci_name(pdev),
2279             ha->flags.enable_64bit_addressing ? '+' : '-', base_vha->host_no,
2280             ha->isp_ops->fw_version_str(base_vha, fw_str));
2281
2282         return 0;
2283
2284 probe_init_failed:
2285         qla2x00_free_req_que(ha, req);
2286         qla2x00_free_rsp_que(ha, rsp);
2287         ha->max_req_queues = ha->max_rsp_queues = 0;
2288
2289 probe_failed:
2290         if (base_vha->timer_active)
2291                 qla2x00_stop_timer(base_vha);
2292         base_vha->flags.online = 0;
2293         if (ha->dpc_thread) {
2294                 struct task_struct *t = ha->dpc_thread;
2295
2296                 ha->dpc_thread = NULL;
2297                 kthread_stop(t);
2298         }
2299
2300         qla2x00_free_device(base_vha);
2301
2302         scsi_host_put(base_vha->host);
2303
2304 probe_hw_failed:
2305         if (IS_QLA82XX(ha)) {
2306                 qla82xx_idc_lock(ha);
2307                 qla82xx_clear_drv_active(ha);
2308                 qla82xx_idc_unlock(ha);
2309                 iounmap((device_reg_t __iomem *)ha->nx_pcibase);
2310                 if (!ql2xdbwr)
2311                         iounmap((device_reg_t __iomem *)ha->nxdb_wr_ptr);
2312         } else {
2313                 if (ha->iobase)
2314                         iounmap(ha->iobase);
2315         }
2316         pci_release_selected_regions(ha->pdev, ha->bars);
2317         kfree(ha);
2318         ha = NULL;
2319
2320 probe_out:
2321         pci_disable_device(pdev);
2322         return ret;
2323 }
2324
2325 static void
2326 qla2x00_shutdown(struct pci_dev *pdev)
2327 {
2328         scsi_qla_host_t *vha;
2329         struct qla_hw_data  *ha;
2330
2331         vha = pci_get_drvdata(pdev);
2332         ha = vha->hw;
2333
2334         /* Turn-off FCE trace */
2335         if (ha->flags.fce_enabled) {
2336                 qla2x00_disable_fce_trace(vha, NULL, NULL);
2337                 ha->flags.fce_enabled = 0;
2338         }
2339
2340         /* Turn-off EFT trace */
2341         if (ha->eft)
2342                 qla2x00_disable_eft_trace(vha);
2343
2344         /* Stop currently executing firmware. */
2345         qla2x00_try_to_stop_firmware(vha);
2346
2347         /* Turn adapter off line */
2348         vha->flags.online = 0;
2349
2350         /* turn-off interrupts on the card */
2351         if (ha->interrupts_on) {
2352                 vha->flags.init_done = 0;
2353                 ha->isp_ops->disable_intrs(ha);
2354         }
2355
2356         qla2x00_free_irqs(vha);
2357
2358         qla2x00_free_fw_dump(ha);
2359 }
2360
2361 static void
2362 qla2x00_remove_one(struct pci_dev *pdev)
2363 {
2364         scsi_qla_host_t *base_vha, *vha;
2365         struct qla_hw_data  *ha;
2366         unsigned long flags;
2367
2368         base_vha = pci_get_drvdata(pdev);
2369         ha = base_vha->hw;
2370
2371         spin_lock_irqsave(&ha->vport_slock, flags);
2372         list_for_each_entry(vha, &ha->vp_list, list) {
2373                 atomic_inc(&vha->vref_count);
2374
2375                 if (vha->fc_vport) {
2376                         spin_unlock_irqrestore(&ha->vport_slock, flags);
2377
2378                         fc_vport_terminate(vha->fc_vport);
2379
2380                         spin_lock_irqsave(&ha->vport_slock, flags);
2381                 }
2382
2383                 atomic_dec(&vha->vref_count);
2384         }
2385         spin_unlock_irqrestore(&ha->vport_slock, flags);
2386
2387         set_bit(UNLOADING, &base_vha->dpc_flags);
2388
2389         qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
2390
2391         qla2x00_dfs_remove(base_vha);
2392
2393         qla84xx_put_chip(base_vha);
2394
2395         /* Disable timer */
2396         if (base_vha->timer_active)
2397                 qla2x00_stop_timer(base_vha);
2398
2399         base_vha->flags.online = 0;
2400
2401         /* Flush the work queue and remove it */
2402         if (ha->wq) {
2403                 flush_workqueue(ha->wq);
2404                 destroy_workqueue(ha->wq);
2405                 ha->wq = NULL;
2406         }
2407
2408         /* Kill the kernel thread for this host */
2409         if (ha->dpc_thread) {
2410                 struct task_struct *t = ha->dpc_thread;
2411
2412                 /*
2413                  * qla2xxx_wake_dpc checks for ->dpc_thread
2414                  * so we need to zero it out.
2415                  */
2416                 ha->dpc_thread = NULL;
2417                 kthread_stop(t);
2418         }
2419
2420         qla2x00_free_sysfs_attr(base_vha);
2421
2422         fc_remove_host(base_vha->host);
2423
2424         scsi_remove_host(base_vha->host);
2425
2426         qla2x00_free_device(base_vha);
2427
2428         scsi_host_put(base_vha->host);
2429
2430         if (IS_QLA82XX(ha)) {
2431                 qla82xx_idc_lock(ha);
2432                 qla82xx_clear_drv_active(ha);
2433                 qla82xx_idc_unlock(ha);
2434
2435                 iounmap((device_reg_t __iomem *)ha->nx_pcibase);
2436                 if (!ql2xdbwr)
2437                         iounmap((device_reg_t __iomem *)ha->nxdb_wr_ptr);
2438         } else {
2439                 if (ha->iobase)
2440                         iounmap(ha->iobase);
2441
2442                 if (ha->mqiobase)
2443                         iounmap(ha->mqiobase);
2444         }
2445
2446         pci_release_selected_regions(ha->pdev, ha->bars);
2447         kfree(ha);
2448         ha = NULL;
2449
2450         pci_disable_pcie_error_reporting(pdev);
2451
2452         pci_disable_device(pdev);
2453         pci_set_drvdata(pdev, NULL);
2454 }
2455
2456 static void
2457 qla2x00_free_device(scsi_qla_host_t *vha)
2458 {
2459         struct qla_hw_data *ha = vha->hw;
2460
2461         qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
2462
2463         /* Disable timer */
2464         if (vha->timer_active)
2465                 qla2x00_stop_timer(vha);
2466
2467         /* Kill the kernel thread for this host */
2468         if (ha->dpc_thread) {
2469                 struct task_struct *t = ha->dpc_thread;
2470
2471                 /*
2472                  * qla2xxx_wake_dpc checks for ->dpc_thread
2473                  * so we need to zero it out.
2474                  */
2475                 ha->dpc_thread = NULL;
2476                 kthread_stop(t);
2477         }
2478
2479         qla25xx_delete_queues(vha);
2480
2481         if (ha->flags.fce_enabled)
2482                 qla2x00_disable_fce_trace(vha, NULL, NULL);
2483
2484         if (ha->eft)
2485                 qla2x00_disable_eft_trace(vha);
2486
2487         /* Stop currently executing firmware. */
2488         qla2x00_try_to_stop_firmware(vha);
2489
2490         vha->flags.online = 0;
2491
2492         /* turn-off interrupts on the card */
2493         if (ha->interrupts_on) {
2494                 vha->flags.init_done = 0;
2495                 ha->isp_ops->disable_intrs(ha);
2496         }
2497
2498         qla2x00_free_irqs(vha);
2499
2500         qla2x00_free_fcports(vha);
2501
2502         qla2x00_mem_free(ha);
2503
2504         qla2x00_free_queues(ha);
2505 }
2506
2507 void qla2x00_free_fcports(struct scsi_qla_host *vha)
2508 {
2509         fc_port_t *fcport, *tfcport;
2510
2511         list_for_each_entry_safe(fcport, tfcport, &vha->vp_fcports, list) {
2512                 list_del(&fcport->list);
2513                 kfree(fcport);
2514                 fcport = NULL;
2515         }
2516 }
2517
2518 static inline void
2519 qla2x00_schedule_rport_del(struct scsi_qla_host *vha, fc_port_t *fcport,
2520     int defer)
2521 {
2522         struct fc_rport *rport;
2523         scsi_qla_host_t *base_vha;
2524         unsigned long flags;
2525
2526         if (!fcport->rport)
2527                 return;
2528
2529         rport = fcport->rport;
2530         if (defer) {
2531                 base_vha = pci_get_drvdata(vha->hw->pdev);
2532                 spin_lock_irqsave(vha->host->host_lock, flags);
2533                 fcport->drport = rport;
2534                 spin_unlock_irqrestore(vha->host->host_lock, flags);
2535                 set_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
2536                 qla2xxx_wake_dpc(base_vha);
2537         } else
2538                 fc_remote_port_delete(rport);
2539 }
2540
2541 /*
2542  * qla2x00_mark_device_lost Updates fcport state when device goes offline.
2543  *
2544  * Input: ha = adapter block pointer.  fcport = port structure pointer.
2545  *
2546  * Return: None.
2547  *
2548  * Context:
2549  */
2550 void qla2x00_mark_device_lost(scsi_qla_host_t *vha, fc_port_t *fcport,
2551     int do_login, int defer)
2552 {
2553         if (atomic_read(&fcport->state) == FCS_ONLINE &&
2554             vha->vp_idx == fcport->vp_idx) {
2555                 qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
2556                 qla2x00_schedule_rport_del(vha, fcport, defer);
2557         }
2558         /*
2559          * We may need to retry the login, so don't change the state of the
2560          * port but do the retries.
2561          */
2562         if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
2563                 qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
2564
2565         if (!do_login)
2566                 return;
2567
2568         if (fcport->login_retry == 0) {
2569                 fcport->login_retry = vha->hw->login_retry_count;
2570                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2571
2572                 DEBUG(printk("scsi(%ld): Port login retry: "
2573                     "%02x%02x%02x%02x%02x%02x%02x%02x, "
2574                     "id = 0x%04x retry cnt=%d\n",
2575                     vha->host_no,
2576                     fcport->port_name[0],
2577                     fcport->port_name[1],
2578                     fcport->port_name[2],
2579                     fcport->port_name[3],
2580                     fcport->port_name[4],
2581                     fcport->port_name[5],
2582                     fcport->port_name[6],
2583                     fcport->port_name[7],
2584                     fcport->loop_id,
2585                     fcport->login_retry));
2586         }
2587 }
2588
2589 /*
2590  * qla2x00_mark_all_devices_lost
2591  *      Updates fcport state when device goes offline.
2592  *
2593  * Input:
2594  *      ha = adapter block pointer.
2595  *      fcport = port structure pointer.
2596  *
2597  * Return:
2598  *      None.
2599  *
2600  * Context:
2601  */
2602 void
2603 qla2x00_mark_all_devices_lost(scsi_qla_host_t *vha, int defer)
2604 {
2605         fc_port_t *fcport;
2606
2607         list_for_each_entry(fcport, &vha->vp_fcports, list) {
2608                 if (vha->vp_idx != 0 && vha->vp_idx != fcport->vp_idx)
2609                         continue;
2610
2611                 /*
2612                  * No point in marking the device as lost, if the device is
2613                  * already DEAD.
2614                  */
2615                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
2616                         continue;
2617                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
2618                         qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
2619                         if (defer)
2620                                 qla2x00_schedule_rport_del(vha, fcport, defer);
2621                         else if (vha->vp_idx == fcport->vp_idx)
2622                                 qla2x00_schedule_rport_del(vha, fcport, defer);
2623                 }
2624         }
2625 }
2626
2627 /*
2628 * qla2x00_mem_alloc
2629 *      Allocates adapter memory.
2630 *
2631 * Returns:
2632 *      0  = success.
2633 *      !0  = failure.
2634 */
2635 static int
2636 qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
2637         struct req_que **req, struct rsp_que **rsp)
2638 {
2639         char    name[16];
2640
2641         ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
2642                 &ha->init_cb_dma, GFP_KERNEL);
2643         if (!ha->init_cb)
2644                 goto fail;
2645
2646         ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
2647                 &ha->gid_list_dma, GFP_KERNEL);
2648         if (!ha->gid_list)
2649                 goto fail_free_init_cb;
2650
2651         ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
2652         if (!ha->srb_mempool)
2653                 goto fail_free_gid_list;
2654
2655         if (IS_QLA82XX(ha)) {
2656                 /* Allocate cache for CT6 Ctx. */
2657                 if (!ctx_cachep) {
2658                         ctx_cachep = kmem_cache_create("qla2xxx_ctx",
2659                                 sizeof(struct ct6_dsd), 0,
2660                                 SLAB_HWCACHE_ALIGN, NULL);
2661                         if (!ctx_cachep)
2662                                 goto fail_free_gid_list;
2663                 }
2664                 ha->ctx_mempool = mempool_create_slab_pool(SRB_MIN_REQ,
2665                         ctx_cachep);
2666                 if (!ha->ctx_mempool)
2667                         goto fail_free_srb_mempool;
2668         }
2669
2670         /* Get memory for cached NVRAM */
2671         ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
2672         if (!ha->nvram)
2673                 goto fail_free_ctx_mempool;
2674
2675         snprintf(name, sizeof(name), "%s_%d", QLA2XXX_DRIVER_NAME,
2676                 ha->pdev->device);
2677         ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2678                 DMA_POOL_SIZE, 8, 0);
2679         if (!ha->s_dma_pool)
2680                 goto fail_free_nvram;
2681
2682         if (IS_QLA82XX(ha) || ql2xenabledif) {
2683                 ha->dl_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2684                         DSD_LIST_DMA_POOL_SIZE, 8, 0);
2685                 if (!ha->dl_dma_pool) {
2686                         qla_printk(KERN_WARNING, ha,
2687                             "Memory Allocation failed - dl_dma_pool\n");
2688                         goto fail_s_dma_pool;
2689                 }
2690
2691                 ha->fcp_cmnd_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2692                         FCP_CMND_DMA_POOL_SIZE, 8, 0);
2693                 if (!ha->fcp_cmnd_dma_pool) {
2694                         qla_printk(KERN_WARNING, ha,
2695                             "Memory Allocation failed - fcp_cmnd_dma_pool\n");
2696                         goto fail_dl_dma_pool;
2697                 }
2698         }
2699
2700         /* Allocate memory for SNS commands */
2701         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2702         /* Get consistent memory allocated for SNS commands */
2703                 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
2704                 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
2705                 if (!ha->sns_cmd)
2706                         goto fail_dma_pool;
2707         } else {
2708         /* Get consistent memory allocated for MS IOCB */
2709                 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2710                         &ha->ms_iocb_dma);
2711                 if (!ha->ms_iocb)
2712                         goto fail_dma_pool;
2713         /* Get consistent memory allocated for CT SNS commands */
2714                 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2715                         sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
2716                 if (!ha->ct_sns)
2717                         goto fail_free_ms_iocb;
2718         }
2719
2720         /* Allocate memory for request ring */
2721         *req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
2722         if (!*req) {
2723                 DEBUG(printk("Unable to allocate memory for req\n"));
2724                 goto fail_req;
2725         }
2726         (*req)->length = req_len;
2727         (*req)->ring = dma_alloc_coherent(&ha->pdev->dev,
2728                 ((*req)->length + 1) * sizeof(request_t),
2729                 &(*req)->dma, GFP_KERNEL);
2730         if (!(*req)->ring) {
2731                 DEBUG(printk("Unable to allocate memory for req_ring\n"));
2732                 goto fail_req_ring;
2733         }
2734         /* Allocate memory for response ring */
2735         *rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
2736         if (!*rsp) {
2737                 qla_printk(KERN_WARNING, ha,
2738                         "Unable to allocate memory for rsp\n");
2739                 goto fail_rsp;
2740         }
2741         (*rsp)->hw = ha;
2742         (*rsp)->length = rsp_len;
2743         (*rsp)->ring = dma_alloc_coherent(&ha->pdev->dev,
2744                 ((*rsp)->length + 1) * sizeof(response_t),
2745                 &(*rsp)->dma, GFP_KERNEL);
2746         if (!(*rsp)->ring) {
2747                 qla_printk(KERN_WARNING, ha,
2748                         "Unable to allocate memory for rsp_ring\n");
2749                 goto fail_rsp_ring;
2750         }
2751         (*req)->rsp = *rsp;
2752         (*rsp)->req = *req;
2753         /* Allocate memory for NVRAM data for vports */
2754         if (ha->nvram_npiv_size) {
2755                 ha->npiv_info = kzalloc(sizeof(struct qla_npiv_entry) *
2756                                         ha->nvram_npiv_size, GFP_KERNEL);
2757                 if (!ha->npiv_info) {
2758                         qla_printk(KERN_WARNING, ha,
2759                                 "Unable to allocate memory for npiv info\n");
2760                         goto fail_npiv_info;
2761                 }
2762         } else
2763                 ha->npiv_info = NULL;
2764
2765         /* Get consistent memory allocated for EX-INIT-CB. */
2766         if (IS_QLA8XXX_TYPE(ha)) {
2767                 ha->ex_init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2768                     &ha->ex_init_cb_dma);
2769                 if (!ha->ex_init_cb)
2770                         goto fail_ex_init_cb;
2771         }
2772
2773         INIT_LIST_HEAD(&ha->gbl_dsd_list);
2774
2775         /* Get consistent memory allocated for Async Port-Database. */
2776         if (!IS_FWI2_CAPABLE(ha)) {
2777                 ha->async_pd = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2778                         &ha->async_pd_dma);
2779                 if (!ha->async_pd)
2780                         goto fail_async_pd;
2781         }
2782
2783         INIT_LIST_HEAD(&ha->vp_list);
2784         return 1;
2785
2786 fail_async_pd:
2787         dma_pool_free(ha->s_dma_pool, ha->ex_init_cb, ha->ex_init_cb_dma);
2788 fail_ex_init_cb:
2789         kfree(ha->npiv_info);
2790 fail_npiv_info:
2791         dma_free_coherent(&ha->pdev->dev, ((*rsp)->length + 1) *
2792                 sizeof(response_t), (*rsp)->ring, (*rsp)->dma);
2793         (*rsp)->ring = NULL;
2794         (*rsp)->dma = 0;
2795 fail_rsp_ring:
2796         kfree(*rsp);
2797 fail_rsp:
2798         dma_free_coherent(&ha->pdev->dev, ((*req)->length + 1) *
2799                 sizeof(request_t), (*req)->ring, (*req)->dma);
2800         (*req)->ring = NULL;
2801         (*req)->dma = 0;
2802 fail_req_ring:
2803         kfree(*req);
2804 fail_req:
2805         dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2806                 ha->ct_sns, ha->ct_sns_dma);
2807         ha->ct_sns = NULL;
2808         ha->ct_sns_dma = 0;
2809 fail_free_ms_iocb:
2810         dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2811         ha->ms_iocb = NULL;
2812         ha->ms_iocb_dma = 0;
2813 fail_dma_pool:
2814         if (IS_QLA82XX(ha) || ql2xenabledif) {
2815                 dma_pool_destroy(ha->fcp_cmnd_dma_pool);
2816                 ha->fcp_cmnd_dma_pool = NULL;
2817         }
2818 fail_dl_dma_pool:
2819         if (IS_QLA82XX(ha) || ql2xenabledif) {
2820                 dma_pool_destroy(ha->dl_dma_pool);
2821                 ha->dl_dma_pool = NULL;
2822         }
2823 fail_s_dma_pool:
2824         dma_pool_destroy(ha->s_dma_pool);
2825         ha->s_dma_pool = NULL;
2826 fail_free_nvram:
2827         kfree(ha->nvram);
2828         ha->nvram = NULL;
2829 fail_free_ctx_mempool:
2830         mempool_destroy(ha->ctx_mempool);
2831         ha->ctx_mempool = NULL;
2832 fail_free_srb_mempool:
2833         mempool_destroy(ha->srb_mempool);
2834         ha->srb_mempool = NULL;
2835 fail_free_gid_list:
2836         dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2837         ha->gid_list_dma);
2838         ha->gid_list = NULL;
2839         ha->gid_list_dma = 0;
2840 fail_free_init_cb:
2841         dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
2842         ha->init_cb_dma);
2843         ha->init_cb = NULL;
2844         ha->init_cb_dma = 0;
2845 fail:
2846         DEBUG(printk("%s: Memory allocation failure\n", __func__));
2847         return -ENOMEM;
2848 }
2849
2850 /*
2851 * qla2x00_free_fw_dump
2852 *       Frees fw dump stuff.
2853 *
2854 * Input:
2855 *       ha = adapter block pointer.
2856 */
2857 static void
2858 qla2x00_free_fw_dump(struct qla_hw_data *ha)
2859 {
2860         if (ha->fce)
2861                 dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
2862                     ha->fce_dma);
2863
2864         if (ha->fw_dump) {
2865                 if (ha->eft)
2866                         dma_free_coherent(&ha->pdev->dev,
2867                             ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2868                 vfree(ha->fw_dump);
2869         }
2870         ha->fce = NULL;
2871         ha->fce_dma = 0;
2872         ha->eft = NULL;
2873         ha->eft_dma = 0;
2874         ha->fw_dump = NULL;
2875         ha->fw_dumped = 0;
2876         ha->fw_dump_reading = 0;
2877 }
2878
2879 /*
2880 * qla2x00_mem_free
2881 *      Frees all adapter allocated memory.
2882 *
2883 * Input:
2884 *      ha = adapter block pointer.
2885 */
2886 static void
2887 qla2x00_mem_free(struct qla_hw_data *ha)
2888 {
2889         qla2x00_free_fw_dump(ha);
2890
2891         if (ha->srb_mempool)
2892                 mempool_destroy(ha->srb_mempool);
2893
2894         if (ha->dcbx_tlv)
2895                 dma_free_coherent(&ha->pdev->dev, DCBX_TLV_DATA_SIZE,
2896                     ha->dcbx_tlv, ha->dcbx_tlv_dma);
2897
2898         if (ha->xgmac_data)
2899                 dma_free_coherent(&ha->pdev->dev, XGMAC_DATA_SIZE,
2900                     ha->xgmac_data, ha->xgmac_data_dma);
2901
2902         if (ha->sns_cmd)
2903                 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2904                 ha->sns_cmd, ha->sns_cmd_dma);
2905
2906         if (ha->ct_sns)
2907                 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2908                 ha->ct_sns, ha->ct_sns_dma);
2909
2910         if (ha->sfp_data)
2911                 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2912
2913         if (ha->edc_data)
2914                 dma_pool_free(ha->s_dma_pool, ha->edc_data, ha->edc_data_dma);
2915
2916         if (ha->ms_iocb)
2917                 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2918
2919         if (ha->ex_init_cb)
2920                 dma_pool_free(ha->s_dma_pool,
2921                         ha->ex_init_cb, ha->ex_init_cb_dma);
2922
2923         if (ha->async_pd)
2924                 dma_pool_free(ha->s_dma_pool, ha->async_pd, ha->async_pd_dma);
2925
2926         if (ha->s_dma_pool)
2927                 dma_pool_destroy(ha->s_dma_pool);
2928
2929         if (ha->gid_list)
2930                 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2931                 ha->gid_list_dma);
2932
2933         if (IS_QLA82XX(ha)) {
2934                 if (!list_empty(&ha->gbl_dsd_list)) {
2935                         struct dsd_dma *dsd_ptr, *tdsd_ptr;
2936
2937                         /* clean up allocated prev pool */
2938                         list_for_each_entry_safe(dsd_ptr,
2939                                 tdsd_ptr, &ha->gbl_dsd_list, list) {
2940                                 dma_pool_free(ha->dl_dma_pool,
2941                                 dsd_ptr->dsd_addr, dsd_ptr->dsd_list_dma);
2942                                 list_del(&dsd_ptr->list);
2943                                 kfree(dsd_ptr);
2944                         }
2945                 }
2946         }
2947
2948         if (ha->dl_dma_pool)
2949                 dma_pool_destroy(ha->dl_dma_pool);
2950
2951         if (ha->fcp_cmnd_dma_pool)
2952                 dma_pool_destroy(ha->fcp_cmnd_dma_pool);
2953
2954         if (ha->ctx_mempool)
2955                 mempool_destroy(ha->ctx_mempool);
2956
2957         if (ha->init_cb)
2958                 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
2959                         ha->init_cb, ha->init_cb_dma);
2960         vfree(ha->optrom_buffer);
2961         kfree(ha->nvram);
2962         kfree(ha->npiv_info);
2963
2964         ha->srb_mempool = NULL;
2965         ha->ctx_mempool = NULL;
2966         ha->sns_cmd = NULL;
2967         ha->sns_cmd_dma = 0;
2968         ha->ct_sns = NULL;
2969         ha->ct_sns_dma = 0;
2970         ha->ms_iocb = NULL;
2971         ha->ms_iocb_dma = 0;
2972         ha->init_cb = NULL;
2973         ha->init_cb_dma = 0;
2974         ha->ex_init_cb = NULL;
2975         ha->ex_init_cb_dma = 0;
2976         ha->async_pd = NULL;
2977         ha->async_pd_dma = 0;
2978
2979         ha->s_dma_pool = NULL;
2980         ha->dl_dma_pool = NULL;
2981         ha->fcp_cmnd_dma_pool = NULL;
2982
2983         ha->gid_list = NULL;
2984         ha->gid_list_dma = 0;
2985 }
2986
2987 struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht,
2988                                                 struct qla_hw_data *ha)
2989 {
2990         struct Scsi_Host *host;
2991         struct scsi_qla_host *vha = NULL;
2992
2993         host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
2994         if (host == NULL) {
2995                 printk(KERN_WARNING
2996                 "qla2xxx: Couldn't allocate host from scsi layer!\n");
2997                 goto fail;
2998         }
2999
3000         /* Clear our data area */
3001         vha = shost_priv(host);
3002         memset(vha, 0, sizeof(scsi_qla_host_t));
3003
3004         vha->host = host;
3005         vha->host_no = host->host_no;
3006         vha->hw = ha;
3007
3008         INIT_LIST_HEAD(&vha->vp_fcports);
3009         INIT_LIST_HEAD(&vha->work_list);
3010         INIT_LIST_HEAD(&vha->list);
3011
3012         spin_lock_init(&vha->work_lock);
3013
3014         sprintf(vha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, vha->host_no);
3015         return vha;
3016
3017 fail:
3018         return vha;
3019 }
3020
3021 static struct qla_work_evt *
3022 qla2x00_alloc_work(struct scsi_qla_host *vha, enum qla_work_type type)
3023 {
3024         struct qla_work_evt *e;
3025         uint8_t bail;
3026
3027         QLA_VHA_MARK_BUSY(vha, bail);
3028         if (bail)
3029                 return NULL;
3030
3031         e = kzalloc(sizeof(struct qla_work_evt), GFP_ATOMIC);
3032         if (!e) {
3033                 QLA_VHA_MARK_NOT_BUSY(vha);
3034                 return NULL;
3035         }
3036
3037         INIT_LIST_HEAD(&e->list);
3038         e->type = type;
3039         e->flags = QLA_EVT_FLAG_FREE;
3040         return e;
3041 }
3042
3043 static int
3044 qla2x00_post_work(struct scsi_qla_host *vha, struct qla_work_evt *e)
3045 {
3046         unsigned long flags;
3047
3048         spin_lock_irqsave(&vha->work_lock, flags);
3049         list_add_tail(&e->list, &vha->work_list);
3050         spin_unlock_irqrestore(&vha->work_lock, flags);
3051         qla2xxx_wake_dpc(vha);
3052
3053         return QLA_SUCCESS;
3054 }
3055
3056 int
3057 qla2x00_post_aen_work(struct scsi_qla_host *vha, enum fc_host_event_code code,
3058     u32 data)
3059 {
3060         struct qla_work_evt *e;
3061
3062         e = qla2x00_alloc_work(vha, QLA_EVT_AEN);
3063         if (!e)
3064                 return QLA_FUNCTION_FAILED;
3065
3066         e->u.aen.code = code;
3067         e->u.aen.data = data;
3068         return qla2x00_post_work(vha, e);
3069 }
3070
3071 int
3072 qla2x00_post_idc_ack_work(struct scsi_qla_host *vha, uint16_t *mb)
3073 {
3074         struct qla_work_evt *e;
3075
3076         e = qla2x00_alloc_work(vha, QLA_EVT_IDC_ACK);
3077         if (!e)
3078                 return QLA_FUNCTION_FAILED;
3079
3080         memcpy(e->u.idc_ack.mb, mb, QLA_IDC_ACK_REGS * sizeof(uint16_t));
3081         return qla2x00_post_work(vha, e);
3082 }
3083
3084 #define qla2x00_post_async_work(name, type)     \
3085 int qla2x00_post_async_##name##_work(           \
3086     struct scsi_qla_host *vha,                  \
3087     fc_port_t *fcport, uint16_t *data)          \
3088 {                                               \
3089         struct qla_work_evt *e;                 \
3090                                                 \
3091         e = qla2x00_alloc_work(vha, type);      \
3092         if (!e)                                 \
3093                 return QLA_FUNCTION_FAILED;     \
3094                                                 \
3095         e->u.logio.fcport = fcport;             \
3096         if (data) {                             \
3097                 e->u.logio.data[0] = data[0];   \
3098                 e->u.logio.data[1] = data[1];   \
3099         }                                       \
3100         return qla2x00_post_work(vha, e);       \
3101 }
3102
3103 qla2x00_post_async_work(login, QLA_EVT_ASYNC_LOGIN);
3104 qla2x00_post_async_work(login_done, QLA_EVT_ASYNC_LOGIN_DONE);
3105 qla2x00_post_async_work(logout, QLA_EVT_ASYNC_LOGOUT);
3106 qla2x00_post_async_work(logout_done, QLA_EVT_ASYNC_LOGOUT_DONE);
3107 qla2x00_post_async_work(adisc, QLA_EVT_ASYNC_ADISC);
3108 qla2x00_post_async_work(adisc_done, QLA_EVT_ASYNC_ADISC_DONE);
3109
3110 int
3111 qla2x00_post_uevent_work(struct scsi_qla_host *vha, u32 code)
3112 {
3113         struct qla_work_evt *e;
3114
3115         e = qla2x00_alloc_work(vha, QLA_EVT_UEVENT);
3116         if (!e)
3117                 return QLA_FUNCTION_FAILED;
3118
3119         e->u.uevent.code = code;
3120         return qla2x00_post_work(vha, e);
3121 }
3122
3123 static void
3124 qla2x00_uevent_emit(struct scsi_qla_host *vha, u32 code)
3125 {
3126         char event_string[40];
3127         char *envp[] = { event_string, NULL };
3128
3129         switch (code) {
3130         case QLA_UEVENT_CODE_FW_DUMP:
3131                 snprintf(event_string, sizeof(event_string), "FW_DUMP=%ld",
3132                     vha->host_no);
3133                 break;
3134         default:
3135                 /* do nothing */
3136                 break;
3137         }
3138         kobject_uevent_env(&vha->hw->pdev->dev.kobj, KOBJ_CHANGE, envp);
3139 }
3140
3141 void
3142 qla2x00_do_work(struct scsi_qla_host *vha)
3143 {
3144         struct qla_work_evt *e, *tmp;
3145         unsigned long flags;
3146         LIST_HEAD(work);
3147
3148         spin_lock_irqsave(&vha->work_lock, flags);
3149         list_splice_init(&vha->work_list, &work);
3150         spin_unlock_irqrestore(&vha->work_lock, flags);
3151
3152         list_for_each_entry_safe(e, tmp, &work, list) {
3153                 list_del_init(&e->list);
3154
3155                 switch (e->type) {
3156                 case QLA_EVT_AEN:
3157                         fc_host_post_event(vha->host, fc_get_event_number(),
3158                             e->u.aen.code, e->u.aen.data);
3159                         break;
3160                 case QLA_EVT_IDC_ACK:
3161                         qla81xx_idc_ack(vha, e->u.idc_ack.mb);
3162                         break;
3163                 case QLA_EVT_ASYNC_LOGIN:
3164                         qla2x00_async_login(vha, e->u.logio.fcport,
3165                             e->u.logio.data);
3166                         break;
3167                 case QLA_EVT_ASYNC_LOGIN_DONE:
3168                         qla2x00_async_login_done(vha, e->u.logio.fcport,
3169                             e->u.logio.data);
3170                         break;
3171                 case QLA_EVT_ASYNC_LOGOUT:
3172                         qla2x00_async_logout(vha, e->u.logio.fcport);
3173                         break;
3174                 case QLA_EVT_ASYNC_LOGOUT_DONE:
3175                         qla2x00_async_logout_done(vha, e->u.logio.fcport,
3176                             e->u.logio.data);
3177                         break;
3178                 case QLA_EVT_ASYNC_ADISC:
3179                         qla2x00_async_adisc(vha, e->u.logio.fcport,
3180                             e->u.logio.data);
3181                         break;
3182                 case QLA_EVT_ASYNC_ADISC_DONE:
3183                         qla2x00_async_adisc_done(vha, e->u.logio.fcport,
3184                             e->u.logio.data);
3185                         break;
3186                 case QLA_EVT_UEVENT:
3187                         qla2x00_uevent_emit(vha, e->u.uevent.code);
3188                         break;
3189                 }
3190                 if (e->flags & QLA_EVT_FLAG_FREE)
3191                         kfree(e);
3192
3193                 /* For each work completed decrement vha ref count */
3194                 QLA_VHA_MARK_NOT_BUSY(vha);
3195         }
3196 }
3197
3198 /* Relogins all the fcports of a vport
3199  * Context: dpc thread
3200  */
3201 void qla2x00_relogin(struct scsi_qla_host *vha)
3202 {
3203         fc_port_t       *fcport;
3204         int status;
3205         uint16_t        next_loopid = 0;
3206         struct qla_hw_data *ha = vha->hw;
3207         uint16_t data[2];
3208
3209         list_for_each_entry(fcport, &vha->vp_fcports, list) {
3210         /*
3211          * If the port is not ONLINE then try to login
3212          * to it if we haven't run out of retries.
3213          */
3214                 if (atomic_read(&fcport->state) != FCS_ONLINE &&
3215                     fcport->login_retry && !(fcport->flags & FCF_ASYNC_SENT)) {
3216                         fcport->login_retry--;
3217                         if (fcport->flags & FCF_FABRIC_DEVICE) {
3218                                 if (fcport->flags & FCF_FCP2_DEVICE)
3219                                         ha->isp_ops->fabric_logout(vha,
3220                                                         fcport->loop_id,
3221                                                         fcport->d_id.b.domain,
3222                                                         fcport->d_id.b.area,
3223                                                         fcport->d_id.b.al_pa);
3224
3225                                 if (fcport->loop_id == FC_NO_LOOP_ID) {
3226                                         fcport->loop_id = next_loopid =
3227                                             ha->min_external_loopid;
3228                                         status = qla2x00_find_new_loop_id(
3229                                             vha, fcport);
3230                                         if (status != QLA_SUCCESS) {
3231                                                 /* Ran out of IDs to use */
3232                                                 break;
3233                                         }
3234                                 }
3235
3236                                 if (IS_ALOGIO_CAPABLE(ha)) {
3237                                         fcport->flags |= FCF_ASYNC_SENT;
3238                                         data[0] = 0;
3239                                         data[1] = QLA_LOGIO_LOGIN_RETRIED;
3240                                         status = qla2x00_post_async_login_work(
3241                                             vha, fcport, data);
3242                                         if (status == QLA_SUCCESS)
3243                                                 continue;
3244                                         /* Attempt a retry. */
3245                                         status = 1;
3246                                 } else
3247                                         status = qla2x00_fabric_login(vha,
3248                                             fcport, &next_loopid);
3249                         } else
3250                                 status = qla2x00_local_device_login(vha,
3251                                                                 fcport);
3252
3253                         if (status == QLA_SUCCESS) {
3254                                 fcport->old_loop_id = fcport->loop_id;
3255
3256                                 DEBUG(printk("scsi(%ld): port login OK: logged "
3257                                 "in ID 0x%x\n", vha->host_no, fcport->loop_id));
3258
3259                                 qla2x00_update_fcport(vha, fcport);
3260
3261                         } else if (status == 1) {
3262                                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
3263                                 /* retry the login again */
3264                                 DEBUG(printk("scsi(%ld): Retrying"
3265                                 " %d login again loop_id 0x%x\n",
3266                                 vha->host_no, fcport->login_retry,
3267                                                 fcport->loop_id));
3268                         } else {
3269                                 fcport->login_retry = 0;
3270                         }
3271
3272                         if (fcport->login_retry == 0 && status != QLA_SUCCESS)
3273                                 fcport->loop_id = FC_NO_LOOP_ID;
3274                 }
3275                 if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
3276                         break;
3277         }
3278 }
3279
3280 /**************************************************************************
3281 * qla2x00_do_dpc
3282 *   This kernel thread is a task that is schedule by the interrupt handler
3283 *   to perform the background processing for interrupts.
3284 *
3285 * Notes:
3286 * This task always run in the context of a kernel thread.  It
3287 * is kick-off by the driver's detect code and starts up
3288 * up one per adapter. It immediately goes to sleep and waits for
3289 * some fibre event.  When either the interrupt handler or
3290 * the timer routine detects a event it will one of the task
3291 * bits then wake us up.
3292 **************************************************************************/
3293 static int
3294 qla2x00_do_dpc(void *data)
3295 {
3296         int             rval;
3297         scsi_qla_host_t *base_vha;
3298         struct qla_hw_data *ha;
3299
3300         ha = (struct qla_hw_data *)data;
3301         base_vha = pci_get_drvdata(ha->pdev);
3302
3303         set_user_nice(current, -20);
3304
3305         set_current_state(TASK_INTERRUPTIBLE);
3306         while (!kthread_should_stop()) {
3307                 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
3308
3309                 schedule();
3310                 __set_current_state(TASK_RUNNING);
3311
3312                 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
3313
3314                 /* Initialization not yet finished. Don't do anything yet. */
3315                 if (!base_vha->flags.init_done)
3316                         continue;
3317
3318                 if (ha->flags.eeh_busy) {
3319                         DEBUG17(qla_printk(KERN_WARNING, ha,
3320                             "qla2x00_do_dpc: dpc_flags: %lx\n",
3321                             base_vha->dpc_flags));
3322                         continue;
3323                 }
3324
3325                 DEBUG3(printk("scsi(%ld): DPC handler\n", base_vha->host_no));
3326
3327                 ha->dpc_active = 1;
3328
3329                 if (ha->flags.mbox_busy) {
3330                         ha->dpc_active = 0;
3331                         continue;
3332                 }
3333
3334                 qla2x00_do_work(base_vha);
3335
3336                 if (IS_QLA82XX(ha)) {
3337                         if (test_and_clear_bit(ISP_UNRECOVERABLE,
3338                                 &base_vha->dpc_flags)) {
3339                                 qla82xx_idc_lock(ha);
3340                                 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3341                                         QLA82XX_DEV_FAILED);
3342                                 qla82xx_idc_unlock(ha);
3343                                 qla_printk(KERN_INFO, ha,
3344                                         "HW State: FAILED\n");
3345                                 qla82xx_device_state_handler(base_vha);
3346                                 continue;
3347                         }
3348
3349                         if (test_and_clear_bit(FCOE_CTX_RESET_NEEDED,
3350                                 &base_vha->dpc_flags)) {
3351
3352                                 DEBUG(printk(KERN_INFO
3353                                         "scsi(%ld): dpc: sched "
3354                                         "qla82xx_fcoe_ctx_reset ha = %p\n",
3355                                         base_vha->host_no, ha));
3356                                 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
3357                                         &base_vha->dpc_flags))) {
3358                                         if (qla82xx_fcoe_ctx_reset(base_vha)) {
3359                                                 /* FCoE-ctx reset failed.
3360                                                  * Escalate to chip-reset
3361                                                  */
3362                                                 set_bit(ISP_ABORT_NEEDED,
3363                                                         &base_vha->dpc_flags);
3364                                         }
3365                                         clear_bit(ABORT_ISP_ACTIVE,
3366                                                 &base_vha->dpc_flags);
3367                                 }
3368
3369                                 DEBUG(printk("scsi(%ld): dpc:"
3370                                         " qla82xx_fcoe_ctx_reset end\n",
3371                                         base_vha->host_no));
3372                         }
3373                 }
3374
3375                 if (test_and_clear_bit(ISP_ABORT_NEEDED,
3376                                                 &base_vha->dpc_flags)) {
3377
3378                         DEBUG(printk("scsi(%ld): dpc: sched "
3379                             "qla2x00_abort_isp ha = %p\n",
3380                             base_vha->host_no, ha));
3381                         if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
3382                             &base_vha->dpc_flags))) {
3383
3384                                 if (ha->isp_ops->abort_isp(base_vha)) {
3385                                         /* failed. retry later */
3386                                         set_bit(ISP_ABORT_NEEDED,
3387                                             &base_vha->dpc_flags);
3388                                 }
3389                                 clear_bit(ABORT_ISP_ACTIVE,
3390                                                 &base_vha->dpc_flags);
3391                         }
3392
3393                         DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
3394                             base_vha->host_no));
3395                 }
3396
3397                 if (test_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags)) {
3398                         qla2x00_update_fcports(base_vha);
3399                         clear_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
3400                 }
3401
3402                 if (test_bit(ISP_QUIESCE_NEEDED, &base_vha->dpc_flags)) {
3403                         DEBUG(printk(KERN_INFO "scsi(%ld): dpc: sched "
3404                             "qla2x00_quiesce_needed ha = %p\n",
3405                             base_vha->host_no, ha));
3406                         qla82xx_device_state_handler(base_vha);
3407                         clear_bit(ISP_QUIESCE_NEEDED, &base_vha->dpc_flags);
3408                         if (!ha->flags.quiesce_owner) {
3409                                 qla2x00_perform_loop_resync(base_vha);
3410
3411                                 qla82xx_idc_lock(ha);
3412                                 qla82xx_clear_qsnt_ready(base_vha);
3413                                 qla82xx_idc_unlock(ha);
3414                         }
3415                 }
3416
3417                 if (test_and_clear_bit(RESET_MARKER_NEEDED,
3418                                                         &base_vha->dpc_flags) &&
3419                     (!(test_and_set_bit(RESET_ACTIVE, &base_vha->dpc_flags)))) {
3420
3421                         DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
3422                             base_vha->host_no));
3423
3424                         qla2x00_rst_aen(base_vha);
3425                         clear_bit(RESET_ACTIVE, &base_vha->dpc_flags);
3426                 }
3427
3428                 /* Retry each device up to login retry count */
3429                 if ((test_and_clear_bit(RELOGIN_NEEDED,
3430                                                 &base_vha->dpc_flags)) &&
3431                     !test_bit(LOOP_RESYNC_NEEDED, &base_vha->dpc_flags) &&
3432                     atomic_read(&base_vha->loop_state) != LOOP_DOWN) {
3433
3434                         DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
3435                                         base_vha->host_no));
3436                         qla2x00_relogin(base_vha);
3437
3438                         DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
3439                             base_vha->host_no));
3440                 }
3441
3442                 if (test_and_clear_bit(LOOP_RESYNC_NEEDED,
3443                                                         &base_vha->dpc_flags)) {
3444
3445                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
3446                                 base_vha->host_no));
3447
3448                         if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
3449                             &base_vha->dpc_flags))) {
3450
3451                                 rval = qla2x00_loop_resync(base_vha);
3452
3453                                 clear_bit(LOOP_RESYNC_ACTIVE,
3454                                                 &base_vha->dpc_flags);
3455                         }
3456
3457                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
3458                             base_vha->host_no));
3459                 }
3460
3461                 if (test_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags) &&
3462                     atomic_read(&base_vha->loop_state) == LOOP_READY) {
3463                         clear_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags);
3464                         qla2xxx_flash_npiv_conf(base_vha);
3465                 }
3466
3467                 if (!ha->interrupts_on)
3468                         ha->isp_ops->enable_intrs(ha);
3469
3470                 if (test_and_clear_bit(BEACON_BLINK_NEEDED,
3471                                         &base_vha->dpc_flags))
3472                         ha->isp_ops->beacon_blink(base_vha);
3473
3474                 qla2x00_do_dpc_all_vps(base_vha);
3475
3476                 ha->dpc_active = 0;
3477                 set_current_state(TASK_INTERRUPTIBLE);
3478         } /* End of while(1) */
3479         __set_current_state(TASK_RUNNING);
3480
3481         DEBUG(printk("scsi(%ld): DPC handler exiting\n", base_vha->host_no));
3482
3483         /*
3484          * Make sure that nobody tries to wake us up again.
3485          */
3486         ha->dpc_active = 0;
3487
3488         /* Cleanup any residual CTX SRBs. */
3489         qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
3490
3491         return 0;
3492 }
3493
3494 void
3495 qla2xxx_wake_dpc(struct scsi_qla_host *vha)
3496 {
3497         struct qla_hw_data *ha = vha->hw;
3498         struct task_struct *t = ha->dpc_thread;
3499
3500         if (!test_bit(UNLOADING, &vha->dpc_flags) && t)
3501                 wake_up_process(t);
3502 }
3503
3504 /*
3505 *  qla2x00_rst_aen
3506 *      Processes asynchronous reset.
3507 *
3508 * Input:
3509 *      ha  = adapter block pointer.
3510 */
3511 static void
3512 qla2x00_rst_aen(scsi_qla_host_t *vha)
3513 {
3514         if (vha->flags.online && !vha->flags.reset_active &&
3515             !atomic_read(&vha->loop_down_timer) &&
3516             !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) {
3517                 do {
3518                         clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
3519
3520                         /*
3521                          * Issue marker command only when we are going to start
3522                          * the I/O.
3523                          */
3524                         vha->marker_needed = 1;
3525                 } while (!atomic_read(&vha->loop_down_timer) &&
3526                     (test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags)));
3527         }
3528 }
3529
3530 static void
3531 qla2x00_sp_free_dma(srb_t *sp)
3532 {
3533         struct scsi_cmnd *cmd = sp->cmd;
3534         struct qla_hw_data *ha = sp->fcport->vha->hw;
3535
3536         if (sp->flags & SRB_DMA_VALID) {
3537                 scsi_dma_unmap(cmd);
3538                 sp->flags &= ~SRB_DMA_VALID;
3539         }
3540
3541         if (sp->flags & SRB_CRC_PROT_DMA_VALID) {
3542                 dma_unmap_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
3543                     scsi_prot_sg_count(cmd), cmd->sc_data_direction);
3544                 sp->flags &= ~SRB_CRC_PROT_DMA_VALID;
3545         }
3546
3547         if (sp->flags & SRB_CRC_CTX_DSD_VALID) {
3548                 /* List assured to be having elements */
3549                 qla2x00_clean_dsd_pool(ha, sp);
3550                 sp->flags &= ~SRB_CRC_CTX_DSD_VALID;
3551         }
3552
3553         if (sp->flags & SRB_CRC_CTX_DMA_VALID) {
3554                 dma_pool_free(ha->dl_dma_pool, sp->ctx,
3555                     ((struct crc_context *)sp->ctx)->crc_ctx_dma);
3556                 sp->flags &= ~SRB_CRC_CTX_DMA_VALID;
3557         }
3558
3559         CMD_SP(cmd) = NULL;
3560 }
3561
3562 static void
3563 qla2x00_sp_final_compl(struct qla_hw_data *ha, srb_t *sp)
3564 {
3565         struct scsi_cmnd *cmd = sp->cmd;
3566
3567         qla2x00_sp_free_dma(sp);
3568
3569         if (sp->flags & SRB_FCP_CMND_DMA_VALID) {
3570                 struct ct6_dsd *ctx = sp->ctx;
3571                 dma_pool_free(ha->fcp_cmnd_dma_pool, ctx->fcp_cmnd,
3572                         ctx->fcp_cmnd_dma);
3573                 list_splice(&ctx->dsd_list, &ha->gbl_dsd_list);
3574                 ha->gbl_dsd_inuse -= ctx->dsd_use_cnt;
3575                 ha->gbl_dsd_avail += ctx->dsd_use_cnt;
3576                 mempool_free(sp->ctx, ha->ctx_mempool);
3577                 sp->ctx = NULL;
3578         }
3579
3580         mempool_free(sp, ha->srb_mempool);
3581         cmd->scsi_done(cmd);
3582 }
3583
3584 void
3585 qla2x00_sp_compl(struct qla_hw_data *ha, srb_t *sp)
3586 {
3587         if (atomic_read(&sp->ref_count) == 0) {
3588                 DEBUG2(qla_printk(KERN_WARNING, ha,
3589                     "SP reference-count to ZERO -- sp=%p\n", sp));
3590                 DEBUG2(BUG());
3591                 return;
3592         }
3593         if (!atomic_dec_and_test(&sp->ref_count))
3594                 return;
3595         qla2x00_sp_final_compl(ha, sp);
3596 }
3597
3598 /**************************************************************************
3599 *   qla2x00_timer
3600 *
3601 * Description:
3602 *   One second timer
3603 *
3604 * Context: Interrupt
3605 ***************************************************************************/
3606 void
3607 qla2x00_timer(scsi_qla_host_t *vha)
3608 {
3609         unsigned long   cpu_flags = 0;
3610         int             start_dpc = 0;
3611         int             index;
3612         srb_t           *sp;
3613         uint16_t        w;
3614         struct qla_hw_data *ha = vha->hw;
3615         struct req_que *req;
3616
3617         if (ha->flags.eeh_busy) {
3618                 qla2x00_restart_timer(vha, WATCH_INTERVAL);
3619                 return;
3620         }
3621
3622         /* Hardware read to raise pending EEH errors during mailbox waits. */
3623         if (!pci_channel_offline(ha->pdev))
3624                 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
3625
3626         if (IS_QLA82XX(ha)) {
3627                 if (test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags))
3628                         start_dpc++;
3629                 qla82xx_watchdog(vha);
3630         }
3631
3632         /* Loop down handler. */
3633         if (atomic_read(&vha->loop_down_timer) > 0 &&
3634             !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) &&
3635             !(test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags))
3636                 && vha->flags.online) {
3637
3638                 if (atomic_read(&vha->loop_down_timer) ==
3639                     vha->loop_down_abort_time) {
3640
3641                         DEBUG(printk("scsi(%ld): Loop Down - aborting the "
3642                             "queues before time expire\n",
3643                             vha->host_no));
3644
3645                         if (!IS_QLA2100(ha) && vha->link_down_timeout)
3646                                 atomic_set(&vha->loop_state, LOOP_DEAD);
3647
3648                         /*
3649                          * Schedule an ISP abort to return any FCP2-device
3650                          * commands.
3651                          */
3652                         /* NPIV - scan physical port only */
3653                         if (!vha->vp_idx) {
3654                                 spin_lock_irqsave(&ha->hardware_lock,
3655                                     cpu_flags);
3656                                 req = ha->req_q_map[0];
3657                                 for (index = 1;
3658                                     index < MAX_OUTSTANDING_COMMANDS;
3659                                     index++) {
3660                                         fc_port_t *sfcp;
3661
3662                                         sp = req->outstanding_cmds[index];
3663                                         if (!sp)
3664                                                 continue;
3665                                         if (sp->ctx && !IS_PROT_IO(sp))
3666                                                 continue;
3667                                         sfcp = sp->fcport;
3668                                         if (!(sfcp->flags & FCF_FCP2_DEVICE))
3669                                                 continue;
3670
3671                                         if (IS_QLA82XX(ha))
3672                                                 set_bit(FCOE_CTX_RESET_NEEDED,
3673                                                         &vha->dpc_flags);
3674                                         else
3675                                                 set_bit(ISP_ABORT_NEEDED,
3676                                                         &vha->dpc_flags);
3677                                         break;
3678                                 }
3679                                 spin_unlock_irqrestore(&ha->hardware_lock,
3680                                                                 cpu_flags);
3681                         }
3682                         start_dpc++;
3683                 }
3684
3685                 /* if the loop has been down for 4 minutes, reinit adapter */
3686                 if (atomic_dec_and_test(&vha->loop_down_timer) != 0) {
3687                         if (!(vha->device_flags & DFLG_NO_CABLE)) {
3688                                 DEBUG(printk("scsi(%ld): Loop down - "
3689                                     "aborting ISP.\n",
3690                                     vha->host_no));
3691                                 qla_printk(KERN_WARNING, ha,
3692                                     "Loop down - aborting ISP.\n");
3693
3694                                 if (IS_QLA82XX(ha))
3695                                         set_bit(FCOE_CTX_RESET_NEEDED,
3696                                                 &vha->dpc_flags);
3697                                 else
3698                                         set_bit(ISP_ABORT_NEEDED,
3699                                                 &vha->dpc_flags);
3700                         }
3701                 }
3702                 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
3703                     vha->host_no,
3704                     atomic_read(&vha->loop_down_timer)));
3705         }
3706
3707         /* Check if beacon LED needs to be blinked */
3708         if (ha->beacon_blink_led == 1) {
3709                 set_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags);
3710                 start_dpc++;
3711         }
3712
3713         /* Process any deferred work. */
3714         if (!list_empty(&vha->work_list))
3715                 start_dpc++;
3716
3717         /* Schedule the DPC routine if needed */
3718         if ((test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
3719             test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) ||
3720             test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags) ||
3721             start_dpc ||
3722             test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) ||
3723             test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags) ||
3724             test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags) ||
3725             test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) ||
3726             test_bit(VP_DPC_NEEDED, &vha->dpc_flags) ||
3727             test_bit(RELOGIN_NEEDED, &vha->dpc_flags)))
3728                 qla2xxx_wake_dpc(vha);
3729
3730         qla2x00_restart_timer(vha, WATCH_INTERVAL);
3731 }
3732
3733 /* Firmware interface routines. */
3734
3735 #define FW_BLOBS        8
3736 #define FW_ISP21XX      0
3737 #define FW_ISP22XX      1
3738 #define FW_ISP2300      2
3739 #define FW_ISP2322      3
3740 #define FW_ISP24XX      4
3741 #define FW_ISP25XX      5
3742 #define FW_ISP81XX      6
3743 #define FW_ISP82XX      7
3744
3745 #define FW_FILE_ISP21XX "ql2100_fw.bin"
3746 #define FW_FILE_ISP22XX "ql2200_fw.bin"
3747 #define FW_FILE_ISP2300 "ql2300_fw.bin"
3748 #define FW_FILE_ISP2322 "ql2322_fw.bin"
3749 #define FW_FILE_ISP24XX "ql2400_fw.bin"
3750 #define FW_FILE_ISP25XX "ql2500_fw.bin"
3751 #define FW_FILE_ISP81XX "ql8100_fw.bin"
3752 #define FW_FILE_ISP82XX "ql8200_fw.bin"
3753
3754 static DEFINE_MUTEX(qla_fw_lock);
3755
3756 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
3757         { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
3758         { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
3759         { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
3760         { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
3761         { .name = FW_FILE_ISP24XX, },
3762         { .name = FW_FILE_ISP25XX, },
3763         { .name = FW_FILE_ISP81XX, },
3764         { .name = FW_FILE_ISP82XX, },
3765 };
3766
3767 struct fw_blob *
3768 qla2x00_request_firmware(scsi_qla_host_t *vha)
3769 {
3770         struct qla_hw_data *ha = vha->hw;
3771         struct fw_blob *blob;
3772
3773         blob = NULL;
3774         if (IS_QLA2100(ha)) {
3775                 blob = &qla_fw_blobs[FW_ISP21XX];
3776         } else if (IS_QLA2200(ha)) {
3777                 blob = &qla_fw_blobs[FW_ISP22XX];
3778         } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
3779                 blob = &qla_fw_blobs[FW_ISP2300];
3780         } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
3781                 blob = &qla_fw_blobs[FW_ISP2322];
3782         } else if (IS_QLA24XX_TYPE(ha)) {
3783                 blob = &qla_fw_blobs[FW_ISP24XX];
3784         } else if (IS_QLA25XX(ha)) {
3785                 blob = &qla_fw_blobs[FW_ISP25XX];
3786         } else if (IS_QLA81XX(ha)) {
3787                 blob = &qla_fw_blobs[FW_ISP81XX];
3788         } else if (IS_QLA82XX(ha)) {
3789                 blob = &qla_fw_blobs[FW_ISP82XX];
3790         }
3791
3792         mutex_lock(&qla_fw_lock);
3793         if (blob->fw)
3794                 goto out;
3795
3796         if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
3797                 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
3798                     "(%s).\n", vha->host_no, blob->name));
3799                 blob->fw = NULL;
3800                 blob = NULL;
3801                 goto out;
3802         }
3803
3804 out:
3805         mutex_unlock(&qla_fw_lock);
3806         return blob;
3807 }
3808
3809 static void
3810 qla2x00_release_firmware(void)
3811 {
3812         int idx;
3813
3814         mutex_lock(&qla_fw_lock);
3815         for (idx = 0; idx < FW_BLOBS; idx++)
3816                 if (qla_fw_blobs[idx].fw)
3817                         release_firmware(qla_fw_blobs[idx].fw);
3818         mutex_unlock(&qla_fw_lock);
3819 }
3820
3821 static pci_ers_result_t
3822 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
3823 {
3824         scsi_qla_host_t *vha = pci_get_drvdata(pdev);
3825         struct qla_hw_data *ha = vha->hw;
3826
3827         DEBUG2(qla_printk(KERN_WARNING, ha, "error_detected:state %x\n",
3828             state));
3829
3830         switch (state) {
3831         case pci_channel_io_normal:
3832                 ha->flags.eeh_busy = 0;
3833                 return PCI_ERS_RESULT_CAN_RECOVER;
3834         case pci_channel_io_frozen:
3835                 ha->flags.eeh_busy = 1;
3836                 /* For ISP82XX complete any pending mailbox cmd */
3837                 if (IS_QLA82XX(ha)) {
3838                         ha->flags.isp82xx_fw_hung = 1;
3839                         if (ha->flags.mbox_busy) {
3840                                 ha->flags.mbox_int = 1;
3841                                 DEBUG2(qla_printk(KERN_ERR, ha,
3842                                         "Due to pci channel io frozen, doing premature "
3843                                         "completion of mbx command\n"));
3844                                 complete(&ha->mbx_intr_comp);
3845                         }
3846                 }
3847                 qla2x00_free_irqs(vha);
3848                 pci_disable_device(pdev);
3849                 /* Return back all IOs */
3850                 qla2x00_abort_all_cmds(vha, DID_RESET << 16);
3851                 return PCI_ERS_RESULT_NEED_RESET;
3852         case pci_channel_io_perm_failure:
3853                 ha->flags.pci_channel_io_perm_failure = 1;
3854                 qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
3855                 return PCI_ERS_RESULT_DISCONNECT;
3856         }
3857         return PCI_ERS_RESULT_NEED_RESET;
3858 }
3859
3860 static pci_ers_result_t
3861 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
3862 {
3863         int risc_paused = 0;
3864         uint32_t stat;
3865         unsigned long flags;
3866         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3867         struct qla_hw_data *ha = base_vha->hw;
3868         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3869         struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
3870
3871         if (IS_QLA82XX(ha))
3872                 return PCI_ERS_RESULT_RECOVERED;
3873
3874         spin_lock_irqsave(&ha->hardware_lock, flags);
3875         if (IS_QLA2100(ha) || IS_QLA2200(ha)){
3876                 stat = RD_REG_DWORD(&reg->hccr);
3877                 if (stat & HCCR_RISC_PAUSE)
3878                         risc_paused = 1;
3879         } else if (IS_QLA23XX(ha)) {
3880                 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
3881                 if (stat & HSR_RISC_PAUSED)
3882                         risc_paused = 1;
3883         } else if (IS_FWI2_CAPABLE(ha)) {
3884                 stat = RD_REG_DWORD(&reg24->host_status);
3885                 if (stat & HSRX_RISC_PAUSED)
3886                         risc_paused = 1;
3887         }
3888         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3889
3890         if (risc_paused) {
3891                 qla_printk(KERN_INFO, ha, "RISC paused -- mmio_enabled, "
3892                     "Dumping firmware!\n");
3893                 ha->isp_ops->fw_dump(base_vha, 0);
3894
3895                 return PCI_ERS_RESULT_NEED_RESET;
3896         } else
3897                 return PCI_ERS_RESULT_RECOVERED;
3898 }
3899
3900 uint32_t qla82xx_error_recovery(scsi_qla_host_t *base_vha)
3901 {
3902         uint32_t rval = QLA_FUNCTION_FAILED;
3903         uint32_t drv_active = 0;
3904         struct qla_hw_data *ha = base_vha->hw;
3905         int fn;
3906         struct pci_dev *other_pdev = NULL;
3907
3908         DEBUG17(qla_printk(KERN_INFO, ha,
3909             "scsi(%ld): In qla82xx_error_recovery\n", base_vha->host_no));
3910
3911         set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
3912
3913         if (base_vha->flags.online) {
3914                 /* Abort all outstanding commands,
3915                  * so as to be requeued later */
3916                 qla2x00_abort_isp_cleanup(base_vha);
3917         }
3918
3919
3920         fn = PCI_FUNC(ha->pdev->devfn);
3921         while (fn > 0) {
3922                 fn--;
3923                 DEBUG17(qla_printk(KERN_INFO, ha,
3924                     "Finding pci device at function = 0x%x\n", fn));
3925                 other_pdev =
3926                     pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus),
3927                     ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
3928                     fn));
3929
3930                 if (!other_pdev)
3931                         continue;
3932                 if (atomic_read(&other_pdev->enable_cnt)) {
3933                         DEBUG17(qla_printk(KERN_INFO, ha,
3934                             "Found PCI func available and enabled at 0x%x\n",
3935                             fn));
3936                         pci_dev_put(other_pdev);
3937                         break;
3938                 }
3939                 pci_dev_put(other_pdev);
3940         }
3941
3942         if (!fn) {
3943                 /* Reset owner */
3944                 DEBUG17(qla_printk(KERN_INFO, ha,
3945                     "This devfn is reset owner = 0x%x\n", ha->pdev->devfn));
3946                 qla82xx_idc_lock(ha);
3947
3948                 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3949                     QLA82XX_DEV_INITIALIZING);
3950
3951                 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION,
3952                     QLA82XX_IDC_VERSION);
3953
3954                 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3955                 DEBUG17(qla_printk(KERN_INFO, ha,
3956                     "drv_active = 0x%x\n", drv_active));
3957
3958                 qla82xx_idc_unlock(ha);
3959                 /* Reset if device is not already reset
3960                  * drv_active would be 0 if a reset has already been done
3961                  */
3962                 if (drv_active)
3963                         rval = qla82xx_start_firmware(base_vha);
3964                 else
3965                         rval = QLA_SUCCESS;
3966                 qla82xx_idc_lock(ha);
3967
3968                 if (rval != QLA_SUCCESS) {
3969                         qla_printk(KERN_INFO, ha, "HW State: FAILED\n");
3970                         qla82xx_clear_drv_active(ha);
3971                         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3972                             QLA82XX_DEV_FAILED);
3973                 } else {
3974                         qla_printk(KERN_INFO, ha, "HW State: READY\n");
3975                         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3976                             QLA82XX_DEV_READY);
3977                         qla82xx_idc_unlock(ha);
3978                         ha->flags.isp82xx_fw_hung = 0;
3979                         rval = qla82xx_restart_isp(base_vha);
3980                         qla82xx_idc_lock(ha);
3981                         /* Clear driver state register */
3982                         qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, 0);
3983                         qla82xx_set_drv_active(base_vha);
3984                 }
3985                 qla82xx_idc_unlock(ha);
3986         } else {
3987                 DEBUG17(qla_printk(KERN_INFO, ha,
3988                     "This devfn is not reset owner = 0x%x\n", ha->pdev->devfn));
3989                 if ((qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE) ==
3990                     QLA82XX_DEV_READY)) {
3991                         ha->flags.isp82xx_fw_hung = 0;
3992                         rval = qla82xx_restart_isp(base_vha);
3993                         qla82xx_idc_lock(ha);
3994                         qla82xx_set_drv_active(base_vha);
3995                         qla82xx_idc_unlock(ha);
3996                 }
3997         }
3998         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
3999
4000         return rval;
4001 }
4002
4003 static pci_ers_result_t
4004 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
4005 {
4006         pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
4007         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
4008         struct qla_hw_data *ha = base_vha->hw;
4009         struct rsp_que *rsp;
4010         int rc, retries = 10;
4011
4012         DEBUG17(qla_printk(KERN_WARNING, ha, "slot_reset\n"));
4013
4014         /* Workaround: qla2xxx driver which access hardware earlier
4015          * needs error state to be pci_channel_io_online.
4016          * Otherwise mailbox command timesout.
4017          */
4018         pdev->error_state = pci_channel_io_normal;
4019
4020         pci_restore_state(pdev);
4021
4022         /* pci_restore_state() clears the saved_state flag of the device
4023          * save restored state which resets saved_state flag
4024          */
4025         pci_save_state(pdev);
4026
4027         if (ha->mem_only)
4028                 rc = pci_enable_device_mem(pdev);
4029         else
4030                 rc = pci_enable_device(pdev);
4031
4032         if (rc) {
4033                 qla_printk(KERN_WARNING, ha,
4034                     "Can't re-enable PCI device after reset.\n");
4035                 goto exit_slot_reset;
4036         }
4037
4038         rsp = ha->rsp_q_map[0];
4039         if (qla2x00_request_irqs(ha, rsp))
4040                 goto exit_slot_reset;
4041
4042         if (ha->isp_ops->pci_config(base_vha))
4043                 goto exit_slot_reset;
4044
4045         if (IS_QLA82XX(ha)) {
4046                 if (qla82xx_error_recovery(base_vha) == QLA_SUCCESS) {
4047                         ret = PCI_ERS_RESULT_RECOVERED;
4048                         goto exit_slot_reset;
4049                 } else
4050                         goto exit_slot_reset;
4051         }
4052
4053         while (ha->flags.mbox_busy && retries--)
4054                 msleep(1000);
4055
4056         set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
4057         if (ha->isp_ops->abort_isp(base_vha) == QLA_SUCCESS)
4058                 ret =  PCI_ERS_RESULT_RECOVERED;
4059         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
4060
4061
4062 exit_slot_reset:
4063         DEBUG17(qla_printk(KERN_WARNING, ha,
4064             "slot_reset-return:ret=%x\n", ret));
4065
4066         return ret;
4067 }
4068
4069 static void
4070 qla2xxx_pci_resume(struct pci_dev *pdev)
4071 {
4072         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
4073         struct qla_hw_data *ha = base_vha->hw;
4074         int ret;
4075
4076         DEBUG17(qla_printk(KERN_WARNING, ha, "pci_resume\n"));
4077
4078         ret = qla2x00_wait_for_hba_online(base_vha);
4079         if (ret != QLA_SUCCESS) {
4080                 qla_printk(KERN_ERR, ha,
4081                     "the device failed to resume I/O "
4082                     "from slot/link_reset");
4083         }
4084
4085         pci_cleanup_aer_uncorrect_error_status(pdev);
4086
4087         ha->flags.eeh_busy = 0;
4088 }
4089
4090 static struct pci_error_handlers qla2xxx_err_handler = {
4091         .error_detected = qla2xxx_pci_error_detected,
4092         .mmio_enabled = qla2xxx_pci_mmio_enabled,
4093         .slot_reset = qla2xxx_pci_slot_reset,
4094         .resume = qla2xxx_pci_resume,
4095 };
4096
4097 static struct pci_device_id qla2xxx_pci_tbl[] = {
4098         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
4099         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
4100         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
4101         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
4102         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
4103         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
4104         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
4105         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
4106         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
4107         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) },
4108         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
4109         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
4110         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
4111         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8001) },
4112         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8021) },
4113         { 0 },
4114 };
4115 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
4116
4117 static struct pci_driver qla2xxx_pci_driver = {
4118         .name           = QLA2XXX_DRIVER_NAME,
4119         .driver         = {
4120                 .owner          = THIS_MODULE,
4121         },
4122         .id_table       = qla2xxx_pci_tbl,
4123         .probe          = qla2x00_probe_one,
4124         .remove         = qla2x00_remove_one,
4125         .shutdown       = qla2x00_shutdown,
4126         .err_handler    = &qla2xxx_err_handler,
4127 };
4128
4129 static struct file_operations apidev_fops = {
4130         .owner = THIS_MODULE,
4131         .llseek = noop_llseek,
4132 };
4133
4134 /**
4135  * qla2x00_module_init - Module initialization.
4136  **/
4137 static int __init
4138 qla2x00_module_init(void)
4139 {
4140         int ret = 0;
4141
4142         /* Allocate cache for SRBs. */
4143         srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
4144             SLAB_HWCACHE_ALIGN, NULL);
4145         if (srb_cachep == NULL) {
4146                 printk(KERN_ERR
4147                     "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
4148                 return -ENOMEM;
4149         }
4150
4151         /* Derive version string. */
4152         strcpy(qla2x00_version_str, QLA2XXX_VERSION);
4153         if (ql2xextended_error_logging)
4154                 strcat(qla2x00_version_str, "-debug");
4155
4156         qla2xxx_transport_template =
4157             fc_attach_transport(&qla2xxx_transport_functions);
4158         if (!qla2xxx_transport_template) {
4159                 kmem_cache_destroy(srb_cachep);
4160                 return -ENODEV;
4161         }
4162
4163         apidev_major = register_chrdev(0, QLA2XXX_APIDEV, &apidev_fops);
4164         if (apidev_major < 0) {
4165                 printk(KERN_WARNING "qla2xxx: Unable to register char device "
4166                     "%s\n", QLA2XXX_APIDEV);
4167         }
4168
4169         qla2xxx_transport_vport_template =
4170             fc_attach_transport(&qla2xxx_transport_vport_functions);
4171         if (!qla2xxx_transport_vport_template) {
4172                 kmem_cache_destroy(srb_cachep);
4173                 fc_release_transport(qla2xxx_transport_template);
4174                 return -ENODEV;
4175         }
4176
4177         printk(KERN_INFO "QLogic Fibre Channel HBA Driver: %s\n",
4178             qla2x00_version_str);
4179         ret = pci_register_driver(&qla2xxx_pci_driver);
4180         if (ret) {
4181                 kmem_cache_destroy(srb_cachep);
4182                 fc_release_transport(qla2xxx_transport_template);
4183                 fc_release_transport(qla2xxx_transport_vport_template);
4184         }
4185         return ret;
4186 }
4187
4188 /**
4189  * qla2x00_module_exit - Module cleanup.
4190  **/
4191 static void __exit
4192 qla2x00_module_exit(void)
4193 {
4194         unregister_chrdev(apidev_major, QLA2XXX_APIDEV);
4195         pci_unregister_driver(&qla2xxx_pci_driver);
4196         qla2x00_release_firmware();
4197         kmem_cache_destroy(srb_cachep);
4198         if (ctx_cachep)
4199                 kmem_cache_destroy(ctx_cachep);
4200         fc_release_transport(qla2xxx_transport_template);
4201         fc_release_transport(qla2xxx_transport_vport_template);
4202 }
4203
4204 module_init(qla2x00_module_init);
4205 module_exit(qla2x00_module_exit);
4206
4207 MODULE_AUTHOR("QLogic Corporation");
4208 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
4209 MODULE_LICENSE("GPL");
4210 MODULE_VERSION(QLA2XXX_VERSION);
4211 MODULE_FIRMWARE(FW_FILE_ISP21XX);
4212 MODULE_FIRMWARE(FW_FILE_ISP22XX);
4213 MODULE_FIRMWARE(FW_FILE_ISP2300);
4214 MODULE_FIRMWARE(FW_FILE_ISP2322);
4215 MODULE_FIRMWARE(FW_FILE_ISP24XX);
4216 MODULE_FIRMWARE(FW_FILE_ISP25XX);