drivers/scsi/qla2xxx/qla_os.c

   1 /*
   2  * QLogic Fibre Channel HBA Driver
   3  * Copyright (c)  2003-2010 QLogic Corporation
   4  *
   5  * See LICENSE.qla2xxx for copyright and licensing details.
   6  */
   7 #include "qla_def.h"
   8
   9 #include <linux/moduleparam.h>
  10 #include <linux/vmalloc.h>
  11 #include <linux/delay.h>
  12 #include <linux/kthread.h>
  13 #include <linux/mutex.h>
  14 #include <linux/kobject.h>
  15 #include <linux/slab.h>
  16
  17 #include <scsi/scsi_tcq.h>
  18 #include <scsi/scsicam.h>
  19 #include <scsi/scsi_transport.h>
  20 #include <scsi/scsi_transport_fc.h>
  21
  22 /*
  23  * Driver version
  24  */
  25 char qla2x00_version_str[40];
  26
  27 static int apidev_major;
  28
  29 /*
  30  * SRB allocation cache
  31  */
  32 static struct kmem_cache *srb_cachep;
  33
  34 /*
  35  * CT6 CTX allocation cache
  36  */
  37 static struct kmem_cache *ctx_cachep;
  38
  39 int ql2xlogintimeout = 20;
  40 module_param(ql2xlogintimeout, int, S_IRUGO|S_IRUSR);
  41 MODULE_PARM_DESC(ql2xlogintimeout,
  42                 "Login timeout value in seconds.");
  43
  44 int qlport_down_retry;
  45 module_param(qlport_down_retry, int, S_IRUGO|S_IRUSR);
  46 MODULE_PARM_DESC(qlport_down_retry,
  47                 "Maximum number of command retries to a port that returns "
  48                 "a PORT-DOWN status.");
  49
  50 int ql2xplogiabsentdevice;
  51 module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
  52 MODULE_PARM_DESC(ql2xplogiabsentdevice,
  53                 "Option to enable PLOGI to devices that are not present after "
  54                 "a Fabric scan.  This is needed for several broken switches. "
  55                 "Default is 0 - no PLOGI. 1 - perfom PLOGI.");
  56
  57 int ql2xloginretrycount = 0;
  58 module_param(ql2xloginretrycount, int, S_IRUGO|S_IRUSR);
  59 MODULE_PARM_DESC(ql2xloginretrycount,
  60                 "Specify an alternate value for the NVRAM login retry count.");
  61
  62 int ql2xallocfwdump = 1;
  63 module_param(ql2xallocfwdump, int, S_IRUGO|S_IRUSR);
  64 MODULE_PARM_DESC(ql2xallocfwdump,
  65                 "Option to enable allocation of memory for a firmware dump "
  66                 "during HBA initialization.  Memory allocation requirements "
  67                 "vary by ISP type.  Default is 1 - allocate memory.");
  68
  69 int ql2xextended_error_logging;
  70 module_param(ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
  71 MODULE_PARM_DESC(ql2xextended_error_logging,
  72                 "Option to enable extended error logging, "
  73                 "Default is 0 - no logging. 1 - log errors.");
  74
  75 int ql2xshiftctondsd = 6;
  76 module_param(ql2xshiftctondsd, int, S_IRUGO|S_IRUSR);
  77 MODULE_PARM_DESC(ql2xshiftctondsd,
  78                 "Set to control shifting of command type processing "
  79                 "based on total number of SG elements.");
  80
  81 static void qla2x00_free_device(scsi_qla_host_t *);
  82
  83 int ql2xfdmienable=1;
  84 module_param(ql2xfdmienable, int, S_IRUGO|S_IRUSR);
  85 MODULE_PARM_DESC(ql2xfdmienable,
  86                 "Enables FDMI registrations. "
  87                 "0 - no FDMI. Default is 1 - perform FDMI.");
  88
  89 #define MAX_Q_DEPTH    32
  90 static int ql2xmaxqdepth = MAX_Q_DEPTH;
  91 module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
  92 MODULE_PARM_DESC(ql2xmaxqdepth,
  93                 "Maximum queue depth to report for target devices.");
  94
  95 /* Do not change the value of this after module load */
  96 int ql2xenabledif = 1;
  97 module_param(ql2xenabledif, int, S_IRUGO|S_IWUSR);
  98 MODULE_PARM_DESC(ql2xenabledif,
  99                 " Enable T10-CRC-DIF "
 100                 " Default is 0 - No DIF Support. 1 - Enable it");
 101
 102 int ql2xenablehba_err_chk;
 103 module_param(ql2xenablehba_err_chk, int, S_IRUGO|S_IWUSR);
 104 MODULE_PARM_DESC(ql2xenablehba_err_chk,
 105                 " Enable T10-CRC-DIF Error isolation by HBA"
 106                 " Default is 0 - Error isolation disabled, 1 - Enable it");
 107
 108 int ql2xiidmaenable=1;
 109 module_param(ql2xiidmaenable, int, S_IRUGO|S_IRUSR);
 110 MODULE_PARM_DESC(ql2xiidmaenable,
 111                 "Enables iIDMA settings "
 112                 "Default is 1 - perform iIDMA. 0 - no iIDMA.");
 113
 114 int ql2xmaxqueues = 1;
 115 module_param(ql2xmaxqueues, int, S_IRUGO|S_IRUSR);
 116 MODULE_PARM_DESC(ql2xmaxqueues,
 117                 "Enables MQ settings "
 118                 "Default is 1 for single queue. Set it to number "
 119                 "of queues in MQ mode.");
 120
 121 int ql2xmultique_tag;
 122 module_param(ql2xmultique_tag, int, S_IRUGO|S_IRUSR);
 123 MODULE_PARM_DESC(ql2xmultique_tag,
 124                 "Enables CPU affinity settings for the driver "
 125                 "Default is 0 for no affinity of request and response IO. "
 126                 "Set it to 1 to turn on the cpu affinity.");
 127
 128 int ql2xfwloadbin;
 129 module_param(ql2xfwloadbin, int, S_IRUGO|S_IRUSR);
 130 MODULE_PARM_DESC(ql2xfwloadbin,
 131                 "Option to specify location from which to load ISP firmware:\n"
 132                 " 2 -- load firmware via the request_firmware() (hotplug)\n"
 133                 "      interface.\n"
 134                 " 1 -- load firmware from flash.\n"
 135                 " 0 -- use default semantics.\n");
 136
 137 int ql2xetsenable;
 138 module_param(ql2xetsenable, int, S_IRUGO|S_IRUSR);
 139 MODULE_PARM_DESC(ql2xetsenable,
 140                 "Enables firmware ETS burst."
 141                 "Default is 0 - skip ETS enablement.");
 142
 143 int ql2xdbwr = 1;
 144 module_param(ql2xdbwr, int, S_IRUGO|S_IRUSR);
 145 MODULE_PARM_DESC(ql2xdbwr,
 146         "Option to specify scheme for request queue posting\n"
 147         " 0 -- Regular doorbell.\n"
 148         " 1 -- CAMRAM doorbell (faster).\n");
 149
 150 int ql2xdontresethba;
 151 module_param(ql2xdontresethba, int, S_IRUGO|S_IRUSR);
 152 MODULE_PARM_DESC(ql2xdontresethba,
 153         "Option to specify reset behaviour\n"
 154         " 0 (Default) -- Reset on failure.\n"
 155         " 1 -- Do not reset on failure.\n");
 156
 157 int ql2xtargetreset = 1;
 158 module_param(ql2xtargetreset, int, S_IRUGO|S_IRUSR);
 159 MODULE_PARM_DESC(ql2xtargetreset,
 160                  "Enable target reset."
 161                  "Default is 1 - use hw defaults.");
 162
 163
 164 int ql2xasynctmfenable;
 165 module_param(ql2xasynctmfenable, int, S_IRUGO|S_IRUSR);
 166 MODULE_PARM_DESC(ql2xasynctmfenable,
 167                 "Enables issue of TM IOCBs asynchronously via IOCB mechanism"
 168                 "Default is 0 - Issue TM IOCBs via mailbox mechanism.");
 169 /*
 170  * SCSI host template entry points
 171  */
 172 static int qla2xxx_slave_configure(struct scsi_device * device);
 173 static int qla2xxx_slave_alloc(struct scsi_device *);
 174 static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
 175 static void qla2xxx_scan_start(struct Scsi_Host *);
 176 static void qla2xxx_slave_destroy(struct scsi_device *);
 177 static int qla2xxx_queuecommand(struct scsi_cmnd *cmd,
 178                 void (*fn)(struct scsi_cmnd *));
 179 static int qla2xxx_eh_abort(struct scsi_cmnd *);
 180 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
 181 static int qla2xxx_eh_target_reset(struct scsi_cmnd *);
 182 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
 183 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
 184
 185 static int qla2x00_change_queue_depth(struct scsi_device *, int, int);
 186 static int qla2x00_change_queue_type(struct scsi_device *, int);
 187
 188 struct scsi_host_template qla2xxx_driver_template = {
 189         .module                 = THIS_MODULE,
 190         .name                   = QLA2XXX_DRIVER_NAME,
 191         .queuecommand           = qla2xxx_queuecommand,
 192
 193         .eh_abort_handler       = qla2xxx_eh_abort,
 194         .eh_device_reset_handler = qla2xxx_eh_device_reset,
 195         .eh_target_reset_handler = qla2xxx_eh_target_reset,
 196         .eh_bus_reset_handler   = qla2xxx_eh_bus_reset,
 197         .eh_host_reset_handler  = qla2xxx_eh_host_reset,
 198
 199         .slave_configure        = qla2xxx_slave_configure,
 200
 201         .slave_alloc            = qla2xxx_slave_alloc,
 202         .slave_destroy          = qla2xxx_slave_destroy,
 203         .scan_finished          = qla2xxx_scan_finished,
 204         .scan_start             = qla2xxx_scan_start,
 205         .change_queue_depth     = qla2x00_change_queue_depth,
 206         .change_queue_type      = qla2x00_change_queue_type,
 207         .this_id                = -1,
 208         .cmd_per_lun            = 3,
 209         .use_clustering         = ENABLE_CLUSTERING,
 210         .sg_tablesize           = SG_ALL,
 211
 212         .max_sectors            = 0xFFFF,
 213         .shost_attrs            = qla2x00_host_attrs,
 214 };
 215
 216 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
 217 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
 218
 219 /* TODO Convert to inlines
 220  *
 221  * Timer routines
 222  */
 223
 224 __inline__ void
 225 qla2x00_start_timer(scsi_qla_host_t *vha, void *func, unsigned long interval)
 226 {
 227         init_timer(&vha->timer);
 228         vha->timer.expires = jiffies + interval * HZ;
 229         vha->timer.data = (unsigned long)vha;
 230         vha->timer.function = (void (*)(unsigned long))func;
 231         add_timer(&vha->timer);
 232         vha->timer_active = 1;
 233 }
 234
 235 static inline void
 236 qla2x00_restart_timer(scsi_qla_host_t *vha, unsigned long interval)
 237 {
 238         /* Currently used for 82XX only. */
 239         if (vha->device_flags & DFLG_DEV_FAILED)
 240                 return;
 241
 242         mod_timer(&vha->timer, jiffies + interval * HZ);
 243 }
 244
 245 static __inline__ void
 246 qla2x00_stop_timer(scsi_qla_host_t *vha)
 247 {
 248         del_timer_sync(&vha->timer);
 249         vha->timer_active = 0;
 250 }
 251
 252 static int qla2x00_do_dpc(void *data);
 253
 254 static void qla2x00_rst_aen(scsi_qla_host_t *);
 255
 256 static int qla2x00_mem_alloc(struct qla_hw_data *, uint16_t, uint16_t,
 257         struct req_que **, struct rsp_que **);
 258 static void qla2x00_mem_free(struct qla_hw_data *);
 259 static void qla2x00_sp_free_dma(srb_t *);
 260
 261 /* -------------------------------------------------------------------------- */
 262 static int qla2x00_alloc_queues(struct qla_hw_data *ha)
 263 {
 264         ha->req_q_map = kzalloc(sizeof(struct req_que *) * ha->max_req_queues,
 265                                 GFP_KERNEL);
 266         if (!ha->req_q_map) {
 267                 qla_printk(KERN_WARNING, ha,
 268                         "Unable to allocate memory for request queue ptrs\n");
 269                 goto fail_req_map;
 270         }
 271
 272         ha->rsp_q_map = kzalloc(sizeof(struct rsp_que *) * ha->max_rsp_queues,
 273                                 GFP_KERNEL);
 274         if (!ha->rsp_q_map) {
 275                 qla_printk(KERN_WARNING, ha,
 276                         "Unable to allocate memory for response queue ptrs\n");
 277                 goto fail_rsp_map;
 278         }
 279         set_bit(0, ha->rsp_qid_map);
 280         set_bit(0, ha->req_qid_map);
 281         return 1;
 282
 283 fail_rsp_map:
 284         kfree(ha->req_q_map);
 285         ha->req_q_map = NULL;
 286 fail_req_map:
 287         return -ENOMEM;
 288 }
 289
 290 static void qla2x00_free_req_que(struct qla_hw_data *ha, struct req_que *req)
 291 {
 292         if (req && req->ring)
 293                 dma_free_coherent(&ha->pdev->dev,
 294                 (req->length + 1) * sizeof(request_t),
 295                 req->ring, req->dma);
 296
 297         kfree(req);
 298         req = NULL;
 299 }
 300
 301 static void qla2x00_free_rsp_que(struct qla_hw_data *ha, struct rsp_que *rsp)
 302 {
 303         if (rsp && rsp->ring)
 304                 dma_free_coherent(&ha->pdev->dev,
 305                 (rsp->length + 1) * sizeof(response_t),
 306                 rsp->ring, rsp->dma);
 307
 308         kfree(rsp);
 309         rsp = NULL;
 310 }
 311
 312 static void qla2x00_free_queues(struct qla_hw_data *ha)
 313 {
 314         struct req_que *req;
 315         struct rsp_que *rsp;
 316         int cnt;
 317
 318         for (cnt = 0; cnt < ha->max_req_queues; cnt++) {
 319                 req = ha->req_q_map[cnt];
 320                 qla2x00_free_req_que(ha, req);
 321         }
 322         kfree(ha->req_q_map);
 323         ha->req_q_map = NULL;
 324
 325         for (cnt = 0; cnt < ha->max_rsp_queues; cnt++) {
 326                 rsp = ha->rsp_q_map[cnt];
 327                 qla2x00_free_rsp_que(ha, rsp);
 328         }
 329         kfree(ha->rsp_q_map);
 330         ha->rsp_q_map = NULL;
 331 }
 332
 333 static int qla25xx_setup_mode(struct scsi_qla_host *vha)
 334 {
 335         uint16_t options = 0;
 336         int ques, req, ret;
 337         struct qla_hw_data *ha = vha->hw;
 338
 339         if (!(ha->fw_attributes & BIT_6)) {
 340                 qla_printk(KERN_INFO, ha,
 341                         "Firmware is not multi-queue capable\n");
 342                 goto fail;
 343         }
 344         if (ql2xmultique_tag) {
 345                 /* create a request queue for IO */
 346                 options |= BIT_7;
 347                 req = qla25xx_create_req_que(ha, options, 0, 0, -1,
 348                         QLA_DEFAULT_QUE_QOS);
 349                 if (!req) {
 350                         qla_printk(KERN_WARNING, ha,
 351                                 "Can't create request queue\n");
 352                         goto fail;
 353                 }
 354                 ha->wq = create_workqueue("qla2xxx_wq");
 355                 vha->req = ha->req_q_map[req];
 356                 options |= BIT_1;
 357                 for (ques = 1; ques < ha->max_rsp_queues; ques++) {
 358                         ret = qla25xx_create_rsp_que(ha, options, 0, 0, req);
 359                         if (!ret) {
 360                                 qla_printk(KERN_WARNING, ha,
 361                                         "Response Queue create failed\n");
 362                                 goto fail2;
 363                         }
 364                 }
 365                 ha->flags.cpu_affinity_enabled = 1;
 366
 367                 DEBUG2(qla_printk(KERN_INFO, ha,
 368                         "CPU affinity mode enabled, no. of response"
 369                         " queues:%d, no. of request queues:%d\n",
 370                         ha->max_rsp_queues, ha->max_req_queues));
 371         }
 372         return 0;
 373 fail2:
 374         qla25xx_delete_queues(vha);
 375         destroy_workqueue(ha->wq);
 376         ha->wq = NULL;
 377 fail:
 378         ha->mqenable = 0;
 379         kfree(ha->req_q_map);
 380         kfree(ha->rsp_q_map);
 381         ha->max_req_queues = ha->max_rsp_queues = 1;
 382         return 1;
 383 }
 384
 385 static char *
 386 qla2x00_pci_info_str(struct scsi_qla_host *vha, char *str)
 387 {
 388         struct qla_hw_data *ha = vha->hw;
 389         static char *pci_bus_modes[] = {
 390                 "33", "66", "100", "133",
 391         };
 392         uint16_t pci_bus;
 393
 394         strcpy(str, "PCI");
 395         pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
 396         if (pci_bus) {
 397                 strcat(str, "-X (");
 398                 strcat(str, pci_bus_modes[pci_bus]);
 399         } else {
 400                 pci_bus = (ha->pci_attr & BIT_8) >> 8;
 401                 strcat(str, " (");
 402                 strcat(str, pci_bus_modes[pci_bus]);
 403         }
 404         strcat(str, " MHz)");
 405
 406         return (str);
 407 }
 408
 409 static char *
 410 qla24xx_pci_info_str(struct scsi_qla_host *vha, char *str)
 411 {
 412         static char *pci_bus_modes[] = { "33", "66", "100", "133", };
 413         struct qla_hw_data *ha = vha->hw;
 414         uint32_t pci_bus;
 415         int pcie_reg;
 416
 417         pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
 418         if (pcie_reg) {
 419                 char lwstr[6];
 420                 uint16_t pcie_lstat, lspeed, lwidth;
 421
 422                 pcie_reg += 0x12;
 423                 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
 424                 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
 425                 lwidth = (pcie_lstat &
 426                     (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
 427
 428                 strcpy(str, "PCIe (");
 429                 if (lspeed == 1)
 430                         strcat(str, "2.5GT/s ");
 431                 else if (lspeed == 2)
 432                         strcat(str, "5.0GT/s ");
 433                 else
 434                         strcat(str, "<unknown> ");
 435                 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
 436                 strcat(str, lwstr);
 437
 438                 return str;
 439         }
 440
 441         strcpy(str, "PCI");
 442         pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
 443         if (pci_bus == 0 || pci_bus == 8) {
 444                 strcat(str, " (");
 445                 strcat(str, pci_bus_modes[pci_bus >> 3]);
 446         } else {
 447                 strcat(str, "-X ");
 448                 if (pci_bus & BIT_2)
 449                         strcat(str, "Mode 2");
 450                 else
 451                         strcat(str, "Mode 1");
 452                 strcat(str, " (");
 453                 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
 454         }
 455         strcat(str, " MHz)");
 456
 457         return str;
 458 }
 459
 460 static char *
 461 qla2x00_fw_version_str(struct scsi_qla_host *vha, char *str)
 462 {
 463         char un_str[10];
 464         struct qla_hw_data *ha = vha->hw;
 465
 466         sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
 467             ha->fw_minor_version,
 468             ha->fw_subminor_version);
 469
 470         if (ha->fw_attributes & BIT_9) {
 471                 strcat(str, "FLX");
 472                 return (str);
 473         }
 474
 475         switch (ha->fw_attributes & 0xFF) {
 476         case 0x7:
 477                 strcat(str, "EF");
 478                 break;
 479         case 0x17:
 480                 strcat(str, "TP");
 481                 break;
 482         case 0x37:
 483                 strcat(str, "IP");
 484                 break;
 485         case 0x77:
 486                 strcat(str, "VI");
 487                 break;
 488         default:
 489                 sprintf(un_str, "(%x)", ha->fw_attributes);
 490                 strcat(str, un_str);
 491                 break;
 492         }
 493         if (ha->fw_attributes & 0x100)
 494                 strcat(str, "X");
 495
 496         return (str);
 497 }
 498
 499 static char *
 500 qla24xx_fw_version_str(struct scsi_qla_host *vha, char *str)
 501 {
 502         struct qla_hw_data *ha = vha->hw;
 503
 504         sprintf(str, "%d.%02d.%02d (%x)", ha->fw_major_version,
 505             ha->fw_minor_version, ha->fw_subminor_version, ha->fw_attributes);
 506         return str;
 507 }
 508
 509 static inline srb_t *
 510 qla2x00_get_new_sp(scsi_qla_host_t *vha, fc_port_t *fcport,
 511     struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 512 {
 513         srb_t *sp;
 514         struct qla_hw_data *ha = vha->hw;
 515
 516         sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
 517         if (!sp)
 518                 return sp;
 519
 520         atomic_set(&sp->ref_count, 1);
 521         sp->fcport = fcport;
 522         sp->cmd = cmd;
 523         sp->flags = 0;
 524         CMD_SP(cmd) = (void *)sp;
 525         cmd->scsi_done = done;
 526         sp->ctx = NULL;
 527
 528         return sp;
 529 }
 530
 531 static int
 532 qla2xxx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 533 {
 534         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 535         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 536         struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
 537         struct qla_hw_data *ha = vha->hw;
 538         struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
 539         srb_t *sp;
 540         int rval;
 541
 542         if (ha->flags.eeh_busy) {
 543                 if (ha->flags.pci_channel_io_perm_failure)
 544                         cmd->result = DID_NO_CONNECT << 16;
 545                 else
 546                         cmd->result = DID_REQUEUE << 16;
 547                 goto qc24_fail_command;
 548         }
 549
 550         rval = fc_remote_port_chkready(rport);
 551         if (rval) {
 552                 cmd->result = rval;
 553                 goto qc24_fail_command;
 554         }
 555
 556         /* Close window on fcport/rport state-transitioning. */
 557         if (fcport->drport)
 558                 goto qc24_target_busy;
 559
 560         if (!vha->flags.difdix_supported &&
 561                 scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) {
 562                         DEBUG2(qla_printk(KERN_ERR, ha,
 563                             "DIF Cap Not Reg, fail DIF capable cmd's:%x\n",
 564                             cmd->cmnd[0]));
 565                         cmd->result = DID_NO_CONNECT << 16;
 566                         goto qc24_fail_command;
 567         }
 568         if (atomic_read(&fcport->state) != FCS_ONLINE) {
 569                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
 570                     atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
 571                         cmd->result = DID_NO_CONNECT << 16;
 572                         goto qc24_fail_command;
 573                 }
 574                 goto qc24_target_busy;
 575         }
 576
 577         spin_unlock_irq(vha->host->host_lock);
 578
 579         sp = qla2x00_get_new_sp(base_vha, fcport, cmd, done);
 580         if (!sp)
 581                 goto qc24_host_busy_lock;
 582
 583         rval = ha->isp_ops->start_scsi(sp);
 584         if (rval != QLA_SUCCESS)
 585                 goto qc24_host_busy_free_sp;
 586
 587         spin_lock_irq(vha->host->host_lock);
 588
 589         return 0;
 590
 591 qc24_host_busy_free_sp:
 592         qla2x00_sp_free_dma(sp);
 593         mempool_free(sp, ha->srb_mempool);
 594
 595 qc24_host_busy_lock:
 596         spin_lock_irq(vha->host->host_lock);
 597         return SCSI_MLQUEUE_HOST_BUSY;
 598
 599 qc24_target_busy:
 600         return SCSI_MLQUEUE_TARGET_BUSY;
 601
 602 qc24_fail_command:
 603         done(cmd);
 604
 605         return 0;
 606 }
 607
 608
 609 /*
 610  * qla2x00_eh_wait_on_command
 611  *    Waits for the command to be returned by the Firmware for some
 612  *    max time.
 613  *
 614  * Input:
 615  *    cmd = Scsi Command to wait on.
 616  *
 617  * Return:
 618  *    Not Found : 0
 619  *    Found : 1
 620  */
 621 static int
 622 qla2x00_eh_wait_on_command(struct scsi_cmnd *cmd)
 623 {
 624 #define ABORT_POLLING_PERIOD    1000
 625 #define ABORT_WAIT_ITER         ((10 * 1000) / (ABORT_POLLING_PERIOD))
 626         unsigned long wait_iter = ABORT_WAIT_ITER;
 627         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 628         struct qla_hw_data *ha = vha->hw;
 629         int ret = QLA_SUCCESS;
 630
 631         if (unlikely(pci_channel_offline(ha->pdev)) || ha->flags.eeh_busy) {
 632                 DEBUG17(qla_printk(KERN_WARNING, ha, "return:eh_wait\n"));
 633                 return ret;
 634         }
 635
 636         while (CMD_SP(cmd) && wait_iter--) {
 637                 msleep(ABORT_POLLING_PERIOD);
 638         }
 639         if (CMD_SP(cmd))
 640                 ret = QLA_FUNCTION_FAILED;
 641
 642         return ret;
 643 }
 644
 645 /*
 646  * qla2x00_wait_for_hba_online
 647  *    Wait till the HBA is online after going through
 648  *    <= MAX_RETRIES_OF_ISP_ABORT  or
 649  *    finally HBA is disabled ie marked offline
 650  *
 651  * Input:
 652  *     ha - pointer to host adapter structure
 653  *
 654  * Note:
 655  *    Does context switching-Release SPIN_LOCK
 656  *    (if any) before calling this routine.
 657  *
 658  * Return:
 659  *    Success (Adapter is online) : 0
 660  *    Failed  (Adapter is offline/disabled) : 1
 661  */
 662 int
 663 qla2x00_wait_for_hba_online(scsi_qla_host_t *vha)
 664 {
 665         int             return_status;
 666         unsigned long   wait_online;
 667         struct qla_hw_data *ha = vha->hw;
 668         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 669
 670         wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 671         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 672             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 673             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 674             ha->dpc_active) && time_before(jiffies, wait_online)) {
 675
 676                 msleep(1000);
 677         }
 678         if (base_vha->flags.online)
 679                 return_status = QLA_SUCCESS;
 680         else
 681                 return_status = QLA_FUNCTION_FAILED;
 682
 683         return (return_status);
 684 }
 685
 686 /*
 687  * qla2x00_wait_for_reset_ready
 688  *    Wait till the HBA is online after going through
 689  *    <= MAX_RETRIES_OF_ISP_ABORT  or
 690  *    finally HBA is disabled ie marked offline or flash
 691  *    operations are in progress.
 692  *
 693  * Input:
 694  *     ha - pointer to host adapter structure
 695  *
 696  * Note:
 697  *    Does context switching-Release SPIN_LOCK
 698  *    (if any) before calling this routine.
 699  *
 700  * Return:
 701  *    Success (Adapter is online/no flash ops) : 0
 702  *    Failed  (Adapter is offline/disabled/flash ops in progress) : 1
 703  */
 704 static int
 705 qla2x00_wait_for_reset_ready(scsi_qla_host_t *vha)
 706 {
 707         int             return_status;
 708         unsigned long   wait_online;
 709         struct qla_hw_data *ha = vha->hw;
 710         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 711
 712         wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 713         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 714             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 715             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 716             ha->optrom_state != QLA_SWAITING ||
 717             ha->dpc_active) && time_before(jiffies, wait_online))
 718                 msleep(1000);
 719
 720         if (base_vha->flags.online &&  ha->optrom_state == QLA_SWAITING)
 721                 return_status = QLA_SUCCESS;
 722         else
 723                 return_status = QLA_FUNCTION_FAILED;
 724
 725         DEBUG2(printk("%s return_status=%d\n", __func__, return_status));
 726
 727         return return_status;
 728 }
 729
 730 int
 731 qla2x00_wait_for_chip_reset(scsi_qla_host_t *vha)
 732 {
 733         int             return_status;
 734         unsigned long   wait_reset;
 735         struct qla_hw_data *ha = vha->hw;
 736         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 737
 738         wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 739         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 740             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 741             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 742             ha->dpc_active) && time_before(jiffies, wait_reset)) {
 743
 744                 msleep(1000);
 745
 746                 if (!test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags) &&
 747                     ha->flags.chip_reset_done)
 748                         break;
 749         }
 750         if (ha->flags.chip_reset_done)
 751                 return_status = QLA_SUCCESS;
 752         else
 753                 return_status = QLA_FUNCTION_FAILED;
 754
 755         return return_status;
 756 }
 757
 758 /*
 759  * qla2x00_wait_for_loop_ready
 760  *    Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
 761  *    to be in LOOP_READY state.
 762  * Input:
 763  *     ha - pointer to host adapter structure
 764  *
 765  * Note:
 766  *    Does context switching-Release SPIN_LOCK
 767  *    (if any) before calling this routine.
 768  *
 769  *
 770  * Return:
 771  *    Success (LOOP_READY) : 0
 772  *    Failed  (LOOP_NOT_READY) : 1
 773  */
 774 static inline int
 775 qla2x00_wait_for_loop_ready(scsi_qla_host_t *vha)
 776 {
 777         int      return_status = QLA_SUCCESS;
 778         unsigned long loop_timeout ;
 779         struct qla_hw_data *ha = vha->hw;
 780         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 781
 782         /* wait for 5 min at the max for loop to be ready */
 783         loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 784
 785         while ((!atomic_read(&base_vha->loop_down_timer) &&
 786             atomic_read(&base_vha->loop_state) == LOOP_DOWN) ||
 787             atomic_read(&base_vha->loop_state) != LOOP_READY) {
 788                 if (atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
 789                         return_status = QLA_FUNCTION_FAILED;
 790                         break;
 791                 }
 792                 msleep(1000);
 793                 if (time_after_eq(jiffies, loop_timeout)) {
 794                         return_status = QLA_FUNCTION_FAILED;
 795                         break;
 796                 }
 797         }
 798         return (return_status);
 799 }
 800
 801 static void
 802 sp_get(struct srb *sp)
 803 {
 804         atomic_inc(&sp->ref_count);
 805 }
 806
 807 /**************************************************************************
 808 * qla2xxx_eh_abort
 809 *
 810 * Description:
 811 *    The abort function will abort the specified command.
 812 *
 813 * Input:
 814 *    cmd = Linux SCSI command packet to be aborted.
 815 *
 816 * Returns:
 817 *    Either SUCCESS or FAILED.
 818 *
 819 * Note:
 820 *    Only return FAILED if command not returned by firmware.
 821 **************************************************************************/
 822 static int
 823 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
 824 {
 825         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 826         srb_t *sp;
 827         int ret, i;
 828         unsigned int id, lun;
 829         unsigned long serial;
 830         unsigned long flags;
 831         int wait = 0;
 832         struct qla_hw_data *ha = vha->hw;
 833         struct req_que *req = vha->req;
 834         srb_t *spt;
 835         int got_ref = 0;
 836
 837         fc_block_scsi_eh(cmd);
 838
 839         if (!CMD_SP(cmd))
 840                 return SUCCESS;
 841
 842         ret = SUCCESS;
 843
 844         id = cmd->device->id;
 845         lun = cmd->device->lun;
 846         serial = cmd->serial_number;
 847         spt = (srb_t *) CMD_SP(cmd);
 848         if (!spt)
 849                 return SUCCESS;
 850
 851         /* Check active list for command command. */
 852         spin_lock_irqsave(&ha->hardware_lock, flags);
 853         for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
 854                 sp = req->outstanding_cmds[i];
 855
 856                 if (sp == NULL)
 857                         continue;
 858                 if ((sp->ctx) && !(sp->flags & SRB_FCP_CMND_DMA_VALID) &&
 859                     !IS_PROT_IO(sp))
 860                         continue;
 861                 if (sp->cmd != cmd)
 862                         continue;
 863
 864                 DEBUG2(printk("%s(%ld): aborting sp %p from RISC."
 865                 " pid=%ld.\n", __func__, vha->host_no, sp, serial));
 866
 867                 /* Get a reference to the sp and drop the lock.*/
 868                 sp_get(sp);
 869                 got_ref++;
 870
 871                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 872                 if (ha->isp_ops->abort_command(sp)) {
 873                         DEBUG2(printk("%s(%ld): abort_command "
 874                         "mbx failed.\n", __func__, vha->host_no));
 875                         ret = FAILED;
 876                 } else {
 877                         DEBUG3(printk("%s(%ld): abort_command "
 878                         "mbx success.\n", __func__, vha->host_no));
 879                         wait = 1;
 880                 }
 881                 spin_lock_irqsave(&ha->hardware_lock, flags);
 882                 break;
 883         }
 884         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 885
 886         /* Wait for the command to be returned. */
 887         if (wait) {
 888                 if (qla2x00_eh_wait_on_command(cmd) != QLA_SUCCESS) {
 889                         qla_printk(KERN_ERR, ha,
 890                             "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
 891                             "%x.\n", vha->host_no, id, lun, serial, ret);
 892                         ret = FAILED;
 893                 }
 894         }
 895
 896         if (got_ref)
 897                 qla2x00_sp_compl(ha, sp);
 898
 899         qla_printk(KERN_INFO, ha,
 900             "scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n",
 901             vha->host_no, id, lun, wait, serial, ret);
 902
 903         return ret;
 904 }
 905
 906 int
 907 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *vha, unsigned int t,
 908         unsigned int l, enum nexus_wait_type type)
 909 {
 910         int cnt, match, status;
 911         unsigned long flags;
 912         struct qla_hw_data *ha = vha->hw;
 913         struct req_que *req;
 914         srb_t *sp;
 915
 916         status = QLA_SUCCESS;
 917
 918         spin_lock_irqsave(&ha->hardware_lock, flags);
 919         req = vha->req;
 920         for (cnt = 1; status == QLA_SUCCESS &&
 921                 cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
 922                 sp = req->outstanding_cmds[cnt];
 923                 if (!sp)
 924                         continue;
 925                 if ((sp->ctx) && !IS_PROT_IO(sp))
 926                         continue;
 927                 if (vha->vp_idx != sp->fcport->vha->vp_idx)
 928                         continue;
 929                 match = 0;
 930                 switch (type) {
 931                 case WAIT_HOST:
 932                         match = 1;
 933                         break;
 934                 case WAIT_TARGET:
 935                         match = sp->cmd->device->id == t;
 936                         break;
 937                 case WAIT_LUN:
 938                         match = (sp->cmd->device->id == t &&
 939                                 sp->cmd->device->lun == l);
 940                         break;
 941                 }
 942                 if (!match)
 943                         continue;
 944
 945                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 946                 status = qla2x00_eh_wait_on_command(sp->cmd);
 947                 spin_lock_irqsave(&ha->hardware_lock, flags);
 948         }
 949         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 950
 951         return status;
 952 }
 953
 954 static char *reset_errors[] = {
 955         "HBA not online",
 956         "HBA not ready",
 957         "Task management failed",
 958         "Waiting for command completions",
 959 };
 960
 961 static int
 962 __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
 963     struct scsi_cmnd *cmd, int (*do_reset)(struct fc_port *, unsigned int, int))
 964 {
 965         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 966         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 967         int err;
 968
 969         fc_block_scsi_eh(cmd);
 970
 971         if (!fcport)
 972                 return FAILED;
 973
 974         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET ISSUED.\n",
 975             vha->host_no, cmd->device->id, cmd->device->lun, name);
 976
 977         err = 0;
 978         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
 979                 goto eh_reset_failed;
 980         err = 1;
 981         if (qla2x00_wait_for_loop_ready(vha) != QLA_SUCCESS)
 982                 goto eh_reset_failed;
 983         err = 2;
 984         if (do_reset(fcport, cmd->device->lun, cmd->request->cpu + 1)
 985                 != QLA_SUCCESS)
 986                 goto eh_reset_failed;
 987         err = 3;
 988         if (qla2x00_eh_wait_for_pending_commands(vha, cmd->device->id,
 989             cmd->device->lun, type) != QLA_SUCCESS)
 990                 goto eh_reset_failed;
 991
 992         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET SUCCEEDED.\n",
 993             vha->host_no, cmd->device->id, cmd->device->lun, name);
 994
 995         return SUCCESS;
 996
 997 eh_reset_failed:
 998         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET FAILED: %s.\n"
 999             , vha->host_no, cmd->device->id, cmd->device->lun, name,
1000             reset_errors[err]);
1001         return FAILED;
1002 }
1003
1004 static int
1005 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
1006 {
1007         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1008         struct qla_hw_data *ha = vha->hw;
1009
1010         return __qla2xxx_eh_generic_reset("DEVICE", WAIT_LUN, cmd,
1011             ha->isp_ops->lun_reset);
1012 }
1013
1014 static int
1015 qla2xxx_eh_target_reset(struct scsi_cmnd *cmd)
1016 {
1017         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1018         struct qla_hw_data *ha = vha->hw;
1019
1020         return __qla2xxx_eh_generic_reset("TARGET", WAIT_TARGET, cmd,
1021             ha->isp_ops->target_reset);
1022 }
1023
1024 /**************************************************************************
1025 * qla2xxx_eh_bus_reset
1026 *
1027 * Description:
1028 *    The bus reset function will reset the bus and abort any executing
1029 *    commands.
1030 *
1031 * Input:
1032 *    cmd = Linux SCSI command packet of the command that cause the
1033 *          bus reset.
1034 *
1035 * Returns:
1036 *    SUCCESS/FAILURE (defined as macro in scsi.h).
1037 *
1038 **************************************************************************/
1039 static int
1040 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
1041 {
1042         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1043         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1044         int ret = FAILED;
1045         unsigned int id, lun;
1046         unsigned long serial;
1047
1048         fc_block_scsi_eh(cmd);
1049
1050         id = cmd->device->id;
1051         lun = cmd->device->lun;
1052         serial = cmd->serial_number;
1053
1054         if (!fcport)
1055                 return ret;
1056
1057         qla_printk(KERN_INFO, vha->hw,
1058             "scsi(%ld:%d:%d): BUS RESET ISSUED.\n", vha->host_no, id, lun);
1059
1060         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1061                 DEBUG2(printk("%s failed:board disabled\n",__func__));
1062                 goto eh_bus_reset_done;
1063         }
1064
1065         if (qla2x00_wait_for_loop_ready(vha) == QLA_SUCCESS) {
1066                 if (qla2x00_loop_reset(vha) == QLA_SUCCESS)
1067                         ret = SUCCESS;
1068         }
1069         if (ret == FAILED)
1070                 goto eh_bus_reset_done;
1071
1072         /* Flush outstanding commands. */
1073         if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST) !=
1074             QLA_SUCCESS)
1075                 ret = FAILED;
1076
1077 eh_bus_reset_done:
1078         qla_printk(KERN_INFO, vha->hw, "%s: reset %s\n", __func__,
1079             (ret == FAILED) ? "failed" : "succeded");
1080
1081         return ret;
1082 }
1083
1084 /**************************************************************************
1085 * qla2xxx_eh_host_reset
1086 *
1087 * Description:
1088 *    The reset function will reset the Adapter.
1089 *
1090 * Input:
1091 *      cmd = Linux SCSI command packet of the command that cause the
1092 *            adapter reset.
1093 *
1094 * Returns:
1095 *      Either SUCCESS or FAILED.
1096 *
1097 * Note:
1098 **************************************************************************/
1099 static int
1100 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
1101 {
1102         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1103         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1104         struct qla_hw_data *ha = vha->hw;
1105         int ret = FAILED;
1106         unsigned int id, lun;
1107         unsigned long serial;
1108         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1109
1110         fc_block_scsi_eh(cmd);
1111
1112         id = cmd->device->id;
1113         lun = cmd->device->lun;
1114         serial = cmd->serial_number;
1115
1116         if (!fcport)
1117                 return ret;
1118
1119         qla_printk(KERN_INFO, ha,
1120             "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", vha->host_no, id, lun);
1121
1122         if (qla2x00_wait_for_reset_ready(vha) != QLA_SUCCESS)
1123                 goto eh_host_reset_lock;
1124
1125         /*
1126          * Fixme-may be dpc thread is active and processing
1127          * loop_resync,so wait a while for it to
1128          * be completed and then issue big hammer.Otherwise
1129          * it may cause I/O failure as big hammer marks the
1130          * devices as lost kicking of the port_down_timer
1131          * while dpc is stuck for the mailbox to complete.
1132          */
1133         qla2x00_wait_for_loop_ready(vha);
1134         if (vha != base_vha) {
1135                 if (qla2x00_vp_abort_isp(vha))
1136                         goto eh_host_reset_lock;
1137         } else {
1138                 if (IS_QLA82XX(vha->hw)) {
1139                         if (!qla82xx_fcoe_ctx_reset(vha)) {
1140                                 /* Ctx reset success */
1141                                 ret = SUCCESS;
1142                                 goto eh_host_reset_lock;
1143                         }
1144                         /* fall thru if ctx reset failed */
1145                 }
1146                 if (ha->wq)
1147                         flush_workqueue(ha->wq);
1148
1149                 set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1150                 if (ha->isp_ops->abort_isp(base_vha)) {
1151                         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1152                         /* failed. schedule dpc to try */
1153                         set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags);
1154
1155                         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
1156                                 goto eh_host_reset_lock;
1157                 }
1158                 clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1159         }
1160
1161         /* Waiting for command to be returned to OS.*/
1162         if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST) ==
1163                 QLA_SUCCESS)
1164                 ret = SUCCESS;
1165
1166 eh_host_reset_lock:
1167         qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
1168             (ret == FAILED) ? "failed" : "succeded");
1169
1170         return ret;
1171 }
1172
1173 /*
1174 * qla2x00_loop_reset
1175 *      Issue loop reset.
1176 *
1177 * Input:
1178 *      ha = adapter block pointer.
1179 *
1180 * Returns:
1181 *      0 = success
1182 */
1183 int
1184 qla2x00_loop_reset(scsi_qla_host_t *vha)
1185 {
1186         int ret;
1187         struct fc_port *fcport;
1188         struct qla_hw_data *ha = vha->hw;
1189
1190         if (ql2xtargetreset == 1 && ha->flags.enable_target_reset) {
1191                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
1192                         if (fcport->port_type != FCT_TARGET)
1193                                 continue;
1194
1195                         ret = ha->isp_ops->target_reset(fcport, 0, 0);
1196                         if (ret != QLA_SUCCESS) {
1197                                 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1198                                     "target_reset=%d d_id=%x.\n", __func__,
1199                                     vha->host_no, ret, fcport->d_id.b24));
1200                         }
1201                 }
1202         }
1203
1204         if (ha->flags.enable_lip_full_login && !IS_QLA8XXX_TYPE(ha)) {
1205                 ret = qla2x00_full_login_lip(vha);
1206                 if (ret != QLA_SUCCESS) {
1207                         DEBUG2_3(printk("%s(%ld): failed: "
1208                             "full_login_lip=%d.\n", __func__, vha->host_no,
1209                             ret));
1210                 }
1211                 atomic_set(&vha->loop_state, LOOP_DOWN);
1212                 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1213                 qla2x00_mark_all_devices_lost(vha, 0);
1214                 qla2x00_wait_for_loop_ready(vha);
1215         }
1216
1217         if (ha->flags.enable_lip_reset) {
1218                 ret = qla2x00_lip_reset(vha);
1219                 if (ret != QLA_SUCCESS) {
1220                         DEBUG2_3(printk("%s(%ld): failed: "
1221                             "lip_reset=%d.\n", __func__, vha->host_no, ret));
1222                 } else
1223                         qla2x00_wait_for_loop_ready(vha);
1224         }
1225
1226         /* Issue marker command only when we are going to start the I/O */
1227         vha->marker_needed = 1;
1228
1229         return QLA_SUCCESS;
1230 }
1231
1232 void
1233 qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res)
1234 {
1235         int que, cnt;
1236         unsigned long flags;
1237         srb_t *sp;
1238         struct srb_ctx *ctx;
1239         struct qla_hw_data *ha = vha->hw;
1240         struct req_que *req;
1241
1242         spin_lock_irqsave(&ha->hardware_lock, flags);
1243         for (que = 0; que < ha->max_req_queues; que++) {
1244                 req = ha->req_q_map[que];
1245                 if (!req)
1246                         continue;
1247                 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
1248                         sp = req->outstanding_cmds[cnt];
1249                         if (sp) {
1250                                 req->outstanding_cmds[cnt] = NULL;
1251                                 if (!sp->ctx ||
1252                                         (sp->flags & SRB_FCP_CMND_DMA_VALID) ||
1253                                         IS_PROT_IO(sp)) {
1254                                         sp->cmd->result = res;
1255                                         qla2x00_sp_compl(ha, sp);
1256                                 } else {
1257                                         ctx = sp->ctx;
1258                                         if (ctx->type == SRB_LOGIN_CMD ||
1259                                             ctx->type == SRB_LOGOUT_CMD) {
1260                                                 ctx->u.iocb_cmd->free(sp);
1261                                         } else {
1262                                                 struct fc_bsg_job *bsg_job =
1263                                                     ctx->u.bsg_job;
1264                                                 if (bsg_job->request->msgcode
1265                                                     == FC_BSG_HST_CT)
1266                                                         kfree(sp->fcport);
1267                                                 bsg_job->req->errors = 0;
1268                                                 bsg_job->reply->result = res;
1269                                                 bsg_job->job_done(bsg_job);
1270                                                 kfree(sp->ctx);
1271                                                 mempool_free(sp,
1272                                                         ha->srb_mempool);
1273                                         }
1274                                 }
1275                         }
1276                 }
1277         }
1278         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1279 }
1280
1281 static int
1282 qla2xxx_slave_alloc(struct scsi_device *sdev)
1283 {
1284         struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1285
1286         if (!rport || fc_remote_port_chkready(rport))
1287                 return -ENXIO;
1288
1289         sdev->hostdata = *(fc_port_t **)rport->dd_data;
1290
1291         return 0;
1292 }
1293
1294 static int
1295 qla2xxx_slave_configure(struct scsi_device *sdev)
1296 {
1297         scsi_qla_host_t *vha = shost_priv(sdev->host);
1298         struct req_que *req = vha->req;
1299
1300         if (sdev->tagged_supported)
1301                 scsi_activate_tcq(sdev, req->max_q_depth);
1302         else
1303                 scsi_deactivate_tcq(sdev, req->max_q_depth);
1304         return 0;
1305 }
1306
1307 static void
1308 qla2xxx_slave_destroy(struct scsi_device *sdev)
1309 {
1310         sdev->hostdata = NULL;
1311 }
1312
1313 static void qla2x00_handle_queue_full(struct scsi_device *sdev, int qdepth)
1314 {
1315         fc_port_t *fcport = (struct fc_port *) sdev->hostdata;
1316
1317         if (!scsi_track_queue_full(sdev, qdepth))
1318                 return;
1319
1320         DEBUG2(qla_printk(KERN_INFO, fcport->vha->hw,
1321                 "scsi(%ld:%d:%d:%d): Queue depth adjusted-down to %d.\n",
1322                 fcport->vha->host_no, sdev->channel, sdev->id, sdev->lun,
1323                 sdev->queue_depth));
1324 }
1325
1326 static void qla2x00_adjust_sdev_qdepth_up(struct scsi_device *sdev, int qdepth)
1327 {
1328         fc_port_t *fcport = sdev->hostdata;
1329         struct scsi_qla_host *vha = fcport->vha;
1330         struct qla_hw_data *ha = vha->hw;
1331         struct req_que *req = NULL;
1332
1333         req = vha->req;
1334         if (!req)
1335                 return;
1336
1337         if (req->max_q_depth <= sdev->queue_depth || req->max_q_depth < qdepth)
1338                 return;
1339
1340         if (sdev->ordered_tags)
1341                 scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, qdepth);
1342         else
1343                 scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, qdepth);
1344
1345         DEBUG2(qla_printk(KERN_INFO, ha,
1346                "scsi(%ld:%d:%d:%d): Queue depth adjusted-up to %d.\n",
1347                fcport->vha->host_no, sdev->channel, sdev->id, sdev->lun,
1348                sdev->queue_depth));
1349 }
1350
1351 static int
1352 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
1353 {
1354         switch (reason) {
1355         case SCSI_QDEPTH_DEFAULT:
1356                 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1357                 break;
1358         case SCSI_QDEPTH_QFULL:
1359                 qla2x00_handle_queue_full(sdev, qdepth);
1360                 break;
1361         case SCSI_QDEPTH_RAMP_UP:
1362                 qla2x00_adjust_sdev_qdepth_up(sdev, qdepth);
1363                 break;
1364         default:
1365                 return -EOPNOTSUPP;
1366         }
1367
1368         return sdev->queue_depth;
1369 }
1370
1371 static int
1372 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1373 {
1374         if (sdev->tagged_supported) {
1375                 scsi_set_tag_type(sdev, tag_type);
1376                 if (tag_type)
1377                         scsi_activate_tcq(sdev, sdev->queue_depth);
1378                 else
1379                         scsi_deactivate_tcq(sdev, sdev->queue_depth);
1380         } else
1381                 tag_type = 0;
1382
1383         return tag_type;
1384 }
1385
1386 /**
1387  * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1388  * @ha: HA context
1389  *
1390  * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1391  * supported addressing method.
1392  */
1393 static void
1394 qla2x00_config_dma_addressing(struct qla_hw_data *ha)
1395 {
1396         /* Assume a 32bit DMA mask. */
1397         ha->flags.enable_64bit_addressing = 0;
1398
1399         if (!dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(64))) {
1400                 /* Any upper-dword bits set? */
1401                 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1402                     !pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
1403                         /* Ok, a 64bit DMA mask is applicable. */
1404                         ha->flags.enable_64bit_addressing = 1;
1405                         ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1406                         ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1407                         return;
1408                 }
1409         }
1410
1411         dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(32));
1412         pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(32));
1413 }
1414
1415 static void
1416 qla2x00_enable_intrs(struct qla_hw_data *ha)
1417 {
1418         unsigned long flags = 0;
1419         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1420
1421         spin_lock_irqsave(&ha->hardware_lock, flags);
1422         ha->interrupts_on = 1;
1423         /* enable risc and host interrupts */
1424         WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1425         RD_REG_WORD(&reg->ictrl);
1426         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1427
1428 }
1429
1430 static void
1431 qla2x00_disable_intrs(struct qla_hw_data *ha)
1432 {
1433         unsigned long flags = 0;
1434         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1435
1436         spin_lock_irqsave(&ha->hardware_lock, flags);
1437         ha->interrupts_on = 0;
1438         /* disable risc and host interrupts */
1439         WRT_REG_WORD(&reg->ictrl, 0);
1440         RD_REG_WORD(&reg->ictrl);
1441         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1442 }
1443
1444 static void
1445 qla24xx_enable_intrs(struct qla_hw_data *ha)
1446 {
1447         unsigned long flags = 0;
1448         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1449
1450         spin_lock_irqsave(&ha->hardware_lock, flags);
1451         ha->interrupts_on = 1;
1452         WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1453         RD_REG_DWORD(&reg->ictrl);
1454         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1455 }
1456
1457 static void
1458 qla24xx_disable_intrs(struct qla_hw_data *ha)
1459 {
1460         unsigned long flags = 0;
1461         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1462
1463         if (IS_NOPOLLING_TYPE(ha))
1464                 return;
1465         spin_lock_irqsave(&ha->hardware_lock, flags);
1466         ha->interrupts_on = 0;
1467         WRT_REG_DWORD(&reg->ictrl, 0);
1468         RD_REG_DWORD(&reg->ictrl);
1469         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1470 }
1471
1472 static struct isp_operations qla2100_isp_ops = {
1473         .pci_config             = qla2100_pci_config,
1474         .reset_chip             = qla2x00_reset_chip,
1475         .chip_diag              = qla2x00_chip_diag,
1476         .config_rings           = qla2x00_config_rings,
1477         .reset_adapter          = qla2x00_reset_adapter,
1478         .nvram_config           = qla2x00_nvram_config,
1479         .update_fw_options      = qla2x00_update_fw_options,
1480         .load_risc              = qla2x00_load_risc,
1481         .pci_info_str           = qla2x00_pci_info_str,
1482         .fw_version_str         = qla2x00_fw_version_str,
1483         .intr_handler           = qla2100_intr_handler,
1484         .enable_intrs           = qla2x00_enable_intrs,
1485         .disable_intrs          = qla2x00_disable_intrs,
1486         .abort_command          = qla2x00_abort_command,
1487         .target_reset           = qla2x00_abort_target,
1488         .lun_reset              = qla2x00_lun_reset,
1489         .fabric_login           = qla2x00_login_fabric,
1490         .fabric_logout          = qla2x00_fabric_logout,
1491         .calc_req_entries       = qla2x00_calc_iocbs_32,
1492         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1493         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1494         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1495         .read_nvram             = qla2x00_read_nvram_data,
1496         .write_nvram            = qla2x00_write_nvram_data,
1497         .fw_dump                = qla2100_fw_dump,
1498         .beacon_on              = NULL,
1499         .beacon_off             = NULL,
1500         .beacon_blink           = NULL,
1501         .read_optrom            = qla2x00_read_optrom_data,
1502         .write_optrom           = qla2x00_write_optrom_data,
1503         .get_flash_version      = qla2x00_get_flash_version,
1504         .start_scsi             = qla2x00_start_scsi,
1505         .abort_isp              = qla2x00_abort_isp,
1506 };
1507
1508 static struct isp_operations qla2300_isp_ops = {
1509         .pci_config             = qla2300_pci_config,
1510         .reset_chip             = qla2x00_reset_chip,
1511         .chip_diag              = qla2x00_chip_diag,
1512         .config_rings           = qla2x00_config_rings,
1513         .reset_adapter          = qla2x00_reset_adapter,
1514         .nvram_config           = qla2x00_nvram_config,
1515         .update_fw_options      = qla2x00_update_fw_options,
1516         .load_risc              = qla2x00_load_risc,
1517         .pci_info_str           = qla2x00_pci_info_str,
1518         .fw_version_str         = qla2x00_fw_version_str,
1519         .intr_handler           = qla2300_intr_handler,
1520         .enable_intrs           = qla2x00_enable_intrs,
1521         .disable_intrs          = qla2x00_disable_intrs,
1522         .abort_command          = qla2x00_abort_command,
1523         .target_reset           = qla2x00_abort_target,
1524         .lun_reset              = qla2x00_lun_reset,
1525         .fabric_login           = qla2x00_login_fabric,
1526         .fabric_logout          = qla2x00_fabric_logout,
1527         .calc_req_entries       = qla2x00_calc_iocbs_32,
1528         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1529         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1530         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1531         .read_nvram             = qla2x00_read_nvram_data,
1532         .write_nvram            = qla2x00_write_nvram_data,
1533         .fw_dump                = qla2300_fw_dump,
1534         .beacon_on              = qla2x00_beacon_on,
1535         .beacon_off             = qla2x00_beacon_off,
1536         .beacon_blink           = qla2x00_beacon_blink,
1537         .read_optrom            = qla2x00_read_optrom_data,
1538         .write_optrom           = qla2x00_write_optrom_data,
1539         .get_flash_version      = qla2x00_get_flash_version,
1540         .start_scsi             = qla2x00_start_scsi,
1541         .abort_isp              = qla2x00_abort_isp,
1542 };
1543
1544 static struct isp_operations qla24xx_isp_ops = {
1545         .pci_config             = qla24xx_pci_config,
1546         .reset_chip             = qla24xx_reset_chip,
1547         .chip_diag              = qla24xx_chip_diag,
1548         .config_rings           = qla24xx_config_rings,
1549         .reset_adapter          = qla24xx_reset_adapter,
1550         .nvram_config           = qla24xx_nvram_config,
1551         .update_fw_options      = qla24xx_update_fw_options,
1552         .load_risc              = qla24xx_load_risc,
1553         .pci_info_str           = qla24xx_pci_info_str,
1554         .fw_version_str         = qla24xx_fw_version_str,
1555         .intr_handler           = qla24xx_intr_handler,
1556         .enable_intrs           = qla24xx_enable_intrs,
1557         .disable_intrs          = qla24xx_disable_intrs,
1558         .abort_command          = qla24xx_abort_command,
1559         .target_reset           = qla24xx_abort_target,
1560         .lun_reset              = qla24xx_lun_reset,
1561         .fabric_login           = qla24xx_login_fabric,
1562         .fabric_logout          = qla24xx_fabric_logout,
1563         .calc_req_entries       = NULL,
1564         .build_iocbs            = NULL,
1565         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1566         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1567         .read_nvram             = qla24xx_read_nvram_data,
1568         .write_nvram            = qla24xx_write_nvram_data,
1569         .fw_dump                = qla24xx_fw_dump,
1570         .beacon_on              = qla24xx_beacon_on,
1571         .beacon_off             = qla24xx_beacon_off,
1572         .beacon_blink           = qla24xx_beacon_blink,
1573         .read_optrom            = qla24xx_read_optrom_data,
1574         .write_optrom           = qla24xx_write_optrom_data,
1575         .get_flash_version      = qla24xx_get_flash_version,
1576         .start_scsi             = qla24xx_start_scsi,
1577         .abort_isp              = qla2x00_abort_isp,
1578 };
1579
1580 static struct isp_operations qla25xx_isp_ops = {
1581         .pci_config             = qla25xx_pci_config,
1582         .reset_chip             = qla24xx_reset_chip,
1583         .chip_diag              = qla24xx_chip_diag,
1584         .config_rings           = qla24xx_config_rings,
1585         .reset_adapter          = qla24xx_reset_adapter,
1586         .nvram_config           = qla24xx_nvram_config,
1587         .update_fw_options      = qla24xx_update_fw_options,
1588         .load_risc              = qla24xx_load_risc,
1589         .pci_info_str           = qla24xx_pci_info_str,
1590         .fw_version_str         = qla24xx_fw_version_str,
1591         .intr_handler           = qla24xx_intr_handler,
1592         .enable_intrs           = qla24xx_enable_intrs,
1593         .disable_intrs          = qla24xx_disable_intrs,
1594         .abort_command          = qla24xx_abort_command,
1595         .target_reset           = qla24xx_abort_target,
1596         .lun_reset              = qla24xx_lun_reset,
1597         .fabric_login           = qla24xx_login_fabric,
1598         .fabric_logout          = qla24xx_fabric_logout,
1599         .calc_req_entries       = NULL,
1600         .build_iocbs            = NULL,
1601         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1602         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1603         .read_nvram             = qla25xx_read_nvram_data,
1604         .write_nvram            = qla25xx_write_nvram_data,
1605         .fw_dump                = qla25xx_fw_dump,
1606         .beacon_on              = qla24xx_beacon_on,
1607         .beacon_off             = qla24xx_beacon_off,
1608         .beacon_blink           = qla24xx_beacon_blink,
1609         .read_optrom            = qla25xx_read_optrom_data,
1610         .write_optrom           = qla24xx_write_optrom_data,
1611         .get_flash_version      = qla24xx_get_flash_version,
1612         .start_scsi             = qla24xx_dif_start_scsi,
1613         .abort_isp              = qla2x00_abort_isp,
1614 };
1615
1616 static struct isp_operations qla81xx_isp_ops = {
1617         .pci_config             = qla25xx_pci_config,
1618         .reset_chip             = qla24xx_reset_chip,
1619         .chip_diag              = qla24xx_chip_diag,
1620         .config_rings           = qla24xx_config_rings,
1621         .reset_adapter          = qla24xx_reset_adapter,
1622         .nvram_config           = qla81xx_nvram_config,
1623         .update_fw_options      = qla81xx_update_fw_options,
1624         .load_risc              = qla81xx_load_risc,
1625         .pci_info_str           = qla24xx_pci_info_str,
1626         .fw_version_str         = qla24xx_fw_version_str,
1627         .intr_handler           = qla24xx_intr_handler,
1628         .enable_intrs           = qla24xx_enable_intrs,
1629         .disable_intrs          = qla24xx_disable_intrs,
1630         .abort_command          = qla24xx_abort_command,
1631         .target_reset           = qla24xx_abort_target,
1632         .lun_reset              = qla24xx_lun_reset,
1633         .fabric_login           = qla24xx_login_fabric,
1634         .fabric_logout          = qla24xx_fabric_logout,
1635         .calc_req_entries       = NULL,
1636         .build_iocbs            = NULL,
1637         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1638         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1639         .read_nvram             = NULL,
1640         .write_nvram            = NULL,
1641         .fw_dump                = qla81xx_fw_dump,
1642         .beacon_on              = qla24xx_beacon_on,
1643         .beacon_off             = qla24xx_beacon_off,
1644         .beacon_blink           = qla24xx_beacon_blink,
1645         .read_optrom            = qla25xx_read_optrom_data,
1646         .write_optrom           = qla24xx_write_optrom_data,
1647         .get_flash_version      = qla24xx_get_flash_version,
1648         .start_scsi             = qla24xx_dif_start_scsi,
1649         .abort_isp              = qla2x00_abort_isp,
1650 };
1651
1652 static struct isp_operations qla82xx_isp_ops = {
1653         .pci_config             = qla82xx_pci_config,
1654         .reset_chip             = qla82xx_reset_chip,
1655         .chip_diag              = qla24xx_chip_diag,
1656         .config_rings           = qla82xx_config_rings,
1657         .reset_adapter          = qla24xx_reset_adapter,
1658         .nvram_config           = qla81xx_nvram_config,
1659         .update_fw_options      = qla24xx_update_fw_options,
1660         .load_risc              = qla82xx_load_risc,
1661         .pci_info_str           = qla82xx_pci_info_str,
1662         .fw_version_str         = qla24xx_fw_version_str,
1663         .intr_handler           = qla82xx_intr_handler,
1664         .enable_intrs           = qla82xx_enable_intrs,
1665         .disable_intrs          = qla82xx_disable_intrs,
1666         .abort_command          = qla24xx_abort_command,
1667         .target_reset           = qla24xx_abort_target,
1668         .lun_reset              = qla24xx_lun_reset,
1669         .fabric_login           = qla24xx_login_fabric,
1670         .fabric_logout          = qla24xx_fabric_logout,
1671         .calc_req_entries       = NULL,
1672         .build_iocbs            = NULL,
1673         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1674         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1675         .read_nvram             = qla24xx_read_nvram_data,
1676         .write_nvram            = qla24xx_write_nvram_data,
1677         .fw_dump                = qla24xx_fw_dump,
1678         .beacon_on              = qla24xx_beacon_on,
1679         .beacon_off             = qla24xx_beacon_off,
1680         .beacon_blink           = qla24xx_beacon_blink,
1681         .read_optrom            = qla82xx_read_optrom_data,
1682         .write_optrom           = qla82xx_write_optrom_data,
1683         .get_flash_version      = qla24xx_get_flash_version,
1684         .start_scsi             = qla82xx_start_scsi,
1685         .abort_isp              = qla82xx_abort_isp,
1686 };
1687
1688 static inline void
1689 qla2x00_set_isp_flags(struct qla_hw_data *ha)
1690 {
1691         ha->device_type = DT_EXTENDED_IDS;
1692         switch (ha->pdev->device) {
1693         case PCI_DEVICE_ID_QLOGIC_ISP2100:
1694                 ha->device_type |= DT_ISP2100;
1695                 ha->device_type &= ~DT_EXTENDED_IDS;
1696                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1697                 break;
1698         case PCI_DEVICE_ID_QLOGIC_ISP2200:
1699                 ha->device_type |= DT_ISP2200;
1700                 ha->device_type &= ~DT_EXTENDED_IDS;
1701                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1702                 break;
1703         case PCI_DEVICE_ID_QLOGIC_ISP2300:
1704                 ha->device_type |= DT_ISP2300;
1705                 ha->device_type |= DT_ZIO_SUPPORTED;
1706                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1707                 break;
1708         case PCI_DEVICE_ID_QLOGIC_ISP2312:
1709                 ha->device_type |= DT_ISP2312;
1710                 ha->device_type |= DT_ZIO_SUPPORTED;
1711                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1712                 break;
1713         case PCI_DEVICE_ID_QLOGIC_ISP2322:
1714                 ha->device_type |= DT_ISP2322;
1715                 ha->device_type |= DT_ZIO_SUPPORTED;
1716                 if (ha->pdev->subsystem_vendor == 0x1028 &&
1717                     ha->pdev->subsystem_device == 0x0170)
1718                         ha->device_type |= DT_OEM_001;
1719                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1720                 break;
1721         case PCI_DEVICE_ID_QLOGIC_ISP6312:
1722                 ha->device_type |= DT_ISP6312;
1723                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1724                 break;
1725         case PCI_DEVICE_ID_QLOGIC_ISP6322:
1726                 ha->device_type |= DT_ISP6322;
1727                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1728                 break;
1729         case PCI_DEVICE_ID_QLOGIC_ISP2422:
1730                 ha->device_type |= DT_ISP2422;
1731                 ha->device_type |= DT_ZIO_SUPPORTED;
1732                 ha->device_type |= DT_FWI2;
1733                 ha->device_type |= DT_IIDMA;
1734                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1735                 break;
1736         case PCI_DEVICE_ID_QLOGIC_ISP2432:
1737                 ha->device_type |= DT_ISP2432;
1738                 ha->device_type |= DT_ZIO_SUPPORTED;
1739                 ha->device_type |= DT_FWI2;
1740                 ha->device_type |= DT_IIDMA;
1741                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1742                 break;
1743         case PCI_DEVICE_ID_QLOGIC_ISP8432:
1744                 ha->device_type |= DT_ISP8432;
1745                 ha->device_type |= DT_ZIO_SUPPORTED;
1746                 ha->device_type |= DT_FWI2;
1747                 ha->device_type |= DT_IIDMA;
1748                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1749                 break;
1750         case PCI_DEVICE_ID_QLOGIC_ISP5422:
1751                 ha->device_type |= DT_ISP5422;
1752                 ha->device_type |= DT_FWI2;
1753                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1754                 break;
1755         case PCI_DEVICE_ID_QLOGIC_ISP5432:
1756                 ha->device_type |= DT_ISP5432;
1757                 ha->device_type |= DT_FWI2;
1758                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1759                 break;
1760         case PCI_DEVICE_ID_QLOGIC_ISP2532:
1761                 ha->device_type |= DT_ISP2532;
1762                 ha->device_type |= DT_ZIO_SUPPORTED;
1763                 ha->device_type |= DT_FWI2;
1764                 ha->device_type |= DT_IIDMA;
1765                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1766                 break;
1767         case PCI_DEVICE_ID_QLOGIC_ISP8001:
1768                 ha->device_type |= DT_ISP8001;
1769                 ha->device_type |= DT_ZIO_SUPPORTED;
1770                 ha->device_type |= DT_FWI2;
1771                 ha->device_type |= DT_IIDMA;
1772                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1773                 break;
1774         case PCI_DEVICE_ID_QLOGIC_ISP8021:
1775                 ha->device_type |= DT_ISP8021;
1776                 ha->device_type |= DT_ZIO_SUPPORTED;
1777                 ha->device_type |= DT_FWI2;
1778                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1779                 /* Initialize 82XX ISP flags */
1780                 qla82xx_init_flags(ha);
1781                 break;
1782         }
1783
1784         if (IS_QLA82XX(ha))
1785                 ha->port_no = !(ha->portnum & 1);
1786         else
1787                 /* Get adapter physical port no from interrupt pin register. */
1788                 pci_read_config_byte(ha->pdev, PCI_INTERRUPT_PIN, &ha->port_no);
1789
1790         if (ha->port_no & 1)
1791                 ha->flags.port0 = 1;
1792         else
1793                 ha->flags.port0 = 0;
1794 }
1795
1796 static int
1797 qla2x00_iospace_config(struct qla_hw_data *ha)
1798 {
1799         resource_size_t pio;
1800         uint16_t msix;
1801         int cpus;
1802
1803         if (IS_QLA82XX(ha))
1804                 return qla82xx_iospace_config(ha);
1805
1806         if (pci_request_selected_regions(ha->pdev, ha->bars,
1807             QLA2XXX_DRIVER_NAME)) {
1808                 qla_printk(KERN_WARNING, ha,
1809                     "Failed to reserve PIO/MMIO regions (%s)\n",
1810                     pci_name(ha->pdev));
1811
1812                 goto iospace_error_exit;
1813         }
1814         if (!(ha->bars & 1))
1815                 goto skip_pio;
1816
1817         /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1818         pio = pci_resource_start(ha->pdev, 0);
1819         if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
1820                 if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1821                         qla_printk(KERN_WARNING, ha,
1822                             "Invalid PCI I/O region size (%s)...\n",
1823                                 pci_name(ha->pdev));
1824                         pio = 0;
1825                 }
1826         } else {
1827                 qla_printk(KERN_WARNING, ha,
1828                     "region #0 not a PIO resource (%s)...\n",
1829                     pci_name(ha->pdev));
1830                 pio = 0;
1831         }
1832         ha->pio_address = pio;
1833
1834 skip_pio:
1835         /* Use MMIO operations for all accesses. */
1836         if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
1837                 qla_printk(KERN_ERR, ha,
1838                     "region #1 not an MMIO resource (%s), aborting\n",
1839                     pci_name(ha->pdev));
1840                 goto iospace_error_exit;
1841         }
1842         if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
1843                 qla_printk(KERN_ERR, ha,
1844                     "Invalid PCI mem region size (%s), aborting\n",
1845                         pci_name(ha->pdev));
1846                 goto iospace_error_exit;
1847         }
1848
1849         ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
1850         if (!ha->iobase) {
1851                 qla_printk(KERN_ERR, ha,
1852                     "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1853
1854                 goto iospace_error_exit;
1855         }
1856
1857         /* Determine queue resources */
1858         ha->max_req_queues = ha->max_rsp_queues = 1;
1859         if ((ql2xmaxqueues <= 1 && !ql2xmultique_tag) ||
1860                 (ql2xmaxqueues > 1 && ql2xmultique_tag) ||
1861                 (!IS_QLA25XX(ha) && !IS_QLA81XX(ha)))
1862                 goto mqiobase_exit;
1863
1864         ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 3),
1865                         pci_resource_len(ha->pdev, 3));
1866         if (ha->mqiobase) {
1867                 /* Read MSIX vector size of the board */
1868                 pci_read_config_word(ha->pdev, QLA_PCI_MSIX_CONTROL, &msix);
1869                 ha->msix_count = msix;
1870                 /* Max queues are bounded by available msix vectors */
1871                 /* queue 0 uses two msix vectors */
1872                 if (ql2xmultique_tag) {
1873                         cpus = num_online_cpus();
1874                         ha->max_rsp_queues = (ha->msix_count - 1 > cpus) ?
1875                                 (cpus + 1) : (ha->msix_count - 1);
1876                         ha->max_req_queues = 2;
1877                 } else if (ql2xmaxqueues > 1) {
1878                         ha->max_req_queues = ql2xmaxqueues > QLA_MQ_SIZE ?
1879                                                 QLA_MQ_SIZE : ql2xmaxqueues;
1880                         DEBUG2(qla_printk(KERN_INFO, ha, "QoS mode set, max no"
1881                         " of request queues:%d\n", ha->max_req_queues));
1882                 }
1883                 qla_printk(KERN_INFO, ha,
1884                         "MSI-X vector count: %d\n", msix);
1885         } else
1886                 qla_printk(KERN_INFO, ha, "BAR 3 not enabled\n");
1887
1888 mqiobase_exit:
1889         ha->msix_count = ha->max_rsp_queues + 1;
1890         return (0);
1891
1892 iospace_error_exit:
1893         return (-ENOMEM);
1894 }
1895
1896 static void
1897 qla2xxx_scan_start(struct Scsi_Host *shost)
1898 {
1899         scsi_qla_host_t *vha = shost_priv(shost);
1900
1901         if (vha->hw->flags.running_gold_fw)
1902                 return;
1903
1904         set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1905         set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1906         set_bit(RSCN_UPDATE, &vha->dpc_flags);
1907         set_bit(NPIV_CONFIG_NEEDED, &vha->dpc_flags);
1908 }
1909
1910 static int
1911 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1912 {
1913         scsi_qla_host_t *vha = shost_priv(shost);
1914
1915         if (!vha->host)
1916                 return 1;
1917         if (time > vha->hw->loop_reset_delay * HZ)
1918                 return 1;
1919
1920         return atomic_read(&vha->loop_state) == LOOP_READY;
1921 }
1922
1923 /*
1924  * PCI driver interface
1925  */
1926 static int __devinit
1927 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1928 {
1929         int     ret = -ENODEV;
1930         struct Scsi_Host *host;
1931         scsi_qla_host_t *base_vha = NULL;
1932         struct qla_hw_data *ha;
1933         char pci_info[30];
1934         char fw_str[30];
1935         struct scsi_host_template *sht;
1936         int bars, max_id, mem_only = 0;
1937         uint16_t req_length = 0, rsp_length = 0;
1938         struct req_que *req = NULL;
1939         struct rsp_que *rsp = NULL;
1940
1941         bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
1942         sht = &qla2xxx_driver_template;
1943         if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1944             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1945             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8432 ||
1946             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1947             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
1948             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532 ||
1949             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8001 ||
1950             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8021) {
1951                 bars = pci_select_bars(pdev, IORESOURCE_MEM);
1952                 mem_only = 1;
1953         }
1954
1955         if (mem_only) {
1956                 if (pci_enable_device_mem(pdev))
1957                         goto probe_out;
1958         } else {
1959                 if (pci_enable_device(pdev))
1960                         goto probe_out;
1961         }
1962
1963         /* This may fail but that's ok */
1964         pci_enable_pcie_error_reporting(pdev);
1965
1966         ha = kzalloc(sizeof(struct qla_hw_data), GFP_KERNEL);
1967         if (!ha) {
1968                 DEBUG(printk("Unable to allocate memory for ha\n"));
1969                 goto probe_out;
1970         }
1971         ha->pdev = pdev;
1972
1973         /* Clear our data area */
1974         ha->bars = bars;
1975         ha->mem_only = mem_only;
1976         spin_lock_init(&ha->hardware_lock);
1977
1978         /* Set ISP-type information. */
1979         qla2x00_set_isp_flags(ha);
1980
1981         /* Set EEH reset type to fundamental if required by hba */
1982         if ( IS_QLA24XX(ha) || IS_QLA25XX(ha) || IS_QLA81XX(ha)) {
1983                 pdev->needs_freset = 1;
1984         }
1985
1986         /* Configure PCI I/O space */
1987         ret = qla2x00_iospace_config(ha);
1988         if (ret)
1989                 goto probe_hw_failed;
1990
1991         qla_printk(KERN_INFO, ha,
1992             "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1993             ha->iobase);
1994
1995         ha->prev_topology = 0;
1996         ha->init_cb_size = sizeof(init_cb_t);
1997         ha->link_data_rate = PORT_SPEED_UNKNOWN;
1998         ha->optrom_size = OPTROM_SIZE_2300;
1999
2000         /* Assign ISP specific operations. */
2001         max_id = MAX_TARGETS_2200;
2002         if (IS_QLA2100(ha)) {
2003                 max_id = MAX_TARGETS_2100;
2004                 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
2005                 req_length = REQUEST_ENTRY_CNT_2100;
2006                 rsp_length = RESPONSE_ENTRY_CNT_2100;
2007                 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
2008                 ha->gid_list_info_size = 4;
2009                 ha->flash_conf_off = ~0;
2010                 ha->flash_data_off = ~0;
2011                 ha->nvram_conf_off = ~0;
2012                 ha->nvram_data_off = ~0;
2013                 ha->isp_ops = &qla2100_isp_ops;
2014         } else if (IS_QLA2200(ha)) {
2015                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2016                 req_length = REQUEST_ENTRY_CNT_2200;
2017                 rsp_length = RESPONSE_ENTRY_CNT_2100;
2018                 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
2019                 ha->gid_list_info_size = 4;
2020                 ha->flash_conf_off = ~0;
2021                 ha->flash_data_off = ~0;
2022                 ha->nvram_conf_off = ~0;
2023                 ha->nvram_data_off = ~0;
2024                 ha->isp_ops = &qla2100_isp_ops;
2025         } else if (IS_QLA23XX(ha)) {
2026                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2027                 req_length = REQUEST_ENTRY_CNT_2200;
2028                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2029                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2030                 ha->gid_list_info_size = 6;
2031                 if (IS_QLA2322(ha) || IS_QLA6322(ha))
2032                         ha->optrom_size = OPTROM_SIZE_2322;
2033                 ha->flash_conf_off = ~0;
2034                 ha->flash_data_off = ~0;
2035                 ha->nvram_conf_off = ~0;
2036                 ha->nvram_data_off = ~0;
2037                 ha->isp_ops = &qla2300_isp_ops;
2038         } else if (IS_QLA24XX_TYPE(ha)) {
2039                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2040                 req_length = REQUEST_ENTRY_CNT_24XX;
2041                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2042                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2043                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
2044                 ha->gid_list_info_size = 8;
2045                 ha->optrom_size = OPTROM_SIZE_24XX;
2046                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA24XX;
2047                 ha->isp_ops = &qla24xx_isp_ops;
2048                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2049                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2050                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2051                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2052         } else if (IS_QLA25XX(ha)) {
2053                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2054                 req_length = REQUEST_ENTRY_CNT_24XX;
2055                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2056                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2057                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
2058                 ha->gid_list_info_size = 8;
2059                 ha->optrom_size = OPTROM_SIZE_25XX;
2060                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2061                 ha->isp_ops = &qla25xx_isp_ops;
2062                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2063                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2064                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2065                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2066         } else if (IS_QLA81XX(ha)) {
2067                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2068                 req_length = REQUEST_ENTRY_CNT_24XX;
2069                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2070                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2071                 ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2072                 ha->gid_list_info_size = 8;
2073                 ha->optrom_size = OPTROM_SIZE_81XX;
2074                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2075                 ha->isp_ops = &qla81xx_isp_ops;
2076                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
2077                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
2078                 ha->nvram_conf_off = ~0;
2079                 ha->nvram_data_off = ~0;
2080         } else if (IS_QLA82XX(ha)) {
2081                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2082                 req_length = REQUEST_ENTRY_CNT_82XX;
2083                 rsp_length = RESPONSE_ENTRY_CNT_82XX;
2084                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2085                 ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2086                 ha->gid_list_info_size = 8;
2087                 ha->optrom_size = OPTROM_SIZE_82XX;
2088                 ha->isp_ops = &qla82xx_isp_ops;
2089                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2090                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2091                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2092                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2093         }
2094
2095         mutex_init(&ha->vport_lock);
2096         init_completion(&ha->mbx_cmd_comp);
2097         complete(&ha->mbx_cmd_comp);
2098         init_completion(&ha->mbx_intr_comp);
2099         init_completion(&ha->dcbx_comp);
2100
2101         set_bit(0, (unsigned long *) ha->vp_idx_map);
2102
2103         qla2x00_config_dma_addressing(ha);
2104         ret = qla2x00_mem_alloc(ha, req_length, rsp_length, &req, &rsp);
2105         if (!ret) {
2106                 qla_printk(KERN_WARNING, ha,
2107                     "[ERROR] Failed to allocate memory for adapter\n");
2108
2109                 goto probe_hw_failed;
2110         }
2111
2112         req->max_q_depth = MAX_Q_DEPTH;
2113         if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
2114                 req->max_q_depth = ql2xmaxqdepth;
2115
2116
2117         base_vha = qla2x00_create_host(sht, ha);
2118         if (!base_vha) {
2119                 qla_printk(KERN_WARNING, ha,
2120                     "[ERROR] Failed to allocate memory for scsi_host\n");
2121
2122                 ret = -ENOMEM;
2123                 qla2x00_mem_free(ha);
2124                 qla2x00_free_req_que(ha, req);
2125                 qla2x00_free_rsp_que(ha, rsp);
2126                 goto probe_hw_failed;
2127         }
2128
2129         pci_set_drvdata(pdev, base_vha);
2130
2131         host = base_vha->host;
2132         base_vha->req = req;
2133         host->can_queue = req->length + 128;
2134         if (IS_QLA2XXX_MIDTYPE(ha))
2135                 base_vha->mgmt_svr_loop_id = 10 + base_vha->vp_idx;
2136         else
2137                 base_vha->mgmt_svr_loop_id = MANAGEMENT_SERVER +
2138                                                 base_vha->vp_idx;
2139         if (IS_QLA2100(ha))
2140                 host->sg_tablesize = 32;
2141         host->max_id = max_id;
2142         host->this_id = 255;
2143         host->cmd_per_lun = 3;
2144         host->unique_id = host->host_no;
2145         if ((IS_QLA25XX(ha) || IS_QLA81XX(ha)) && ql2xenabledif)
2146                 host->max_cmd_len = 32;
2147         else
2148                 host->max_cmd_len = MAX_CMDSZ;
2149         host->max_channel = MAX_BUSES - 1;
2150         host->max_lun = MAX_LUNS;
2151         host->transportt = qla2xxx_transport_template;
2152         sht->vendor_id = (SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC);
2153
2154         /* Set up the irqs */
2155         ret = qla2x00_request_irqs(ha, rsp);
2156         if (ret)
2157                 goto probe_init_failed;
2158
2159         pci_save_state(pdev);
2160
2161         /* Alloc arrays of request and response ring ptrs */
2162 que_init:
2163         if (!qla2x00_alloc_queues(ha)) {
2164                 qla_printk(KERN_WARNING, ha,
2165                 "[ERROR] Failed to allocate memory for queue"
2166                 " pointers\n");
2167                 goto probe_init_failed;
2168         }
2169
2170         ha->rsp_q_map[0] = rsp;
2171         ha->req_q_map[0] = req;
2172         rsp->req = req;
2173         req->rsp = rsp;
2174         set_bit(0, ha->req_qid_map);
2175         set_bit(0, ha->rsp_qid_map);
2176         /* FWI2-capable only. */
2177         req->req_q_in = &ha->iobase->isp24.req_q_in;
2178         req->req_q_out = &ha->iobase->isp24.req_q_out;
2179         rsp->rsp_q_in = &ha->iobase->isp24.rsp_q_in;
2180         rsp->rsp_q_out = &ha->iobase->isp24.rsp_q_out;
2181         if (ha->mqenable) {
2182                 req->req_q_in = &ha->mqiobase->isp25mq.req_q_in;
2183                 req->req_q_out = &ha->mqiobase->isp25mq.req_q_out;
2184                 rsp->rsp_q_in = &ha->mqiobase->isp25mq.rsp_q_in;
2185                 rsp->rsp_q_out =  &ha->mqiobase->isp25mq.rsp_q_out;
2186         }
2187
2188         if (IS_QLA82XX(ha)) {
2189                 req->req_q_out = &ha->iobase->isp82.req_q_out[0];
2190                 rsp->rsp_q_in = &ha->iobase->isp82.rsp_q_in[0];
2191                 rsp->rsp_q_out = &ha->iobase->isp82.rsp_q_out[0];
2192         }
2193
2194         if (qla2x00_initialize_adapter(base_vha)) {
2195                 qla_printk(KERN_WARNING, ha,
2196                     "Failed to initialize adapter\n");
2197
2198                 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
2199                     "Adapter flags %x.\n",
2200                     base_vha->host_no, base_vha->device_flags));
2201
2202                 if (IS_QLA82XX(ha)) {
2203                         qla82xx_idc_lock(ha);
2204                         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
2205                                 QLA82XX_DEV_FAILED);
2206                         qla82xx_idc_unlock(ha);
2207                         qla_printk(KERN_INFO, ha, "HW State: FAILED\n");
2208                 }
2209
2210                 ret = -ENODEV;
2211                 goto probe_failed;
2212         }
2213
2214         if (ha->mqenable) {
2215                 if (qla25xx_setup_mode(base_vha)) {
2216                         qla_printk(KERN_WARNING, ha,
2217                                 "Can't create queues, falling back to single"
2218                                 " queue mode\n");
2219                         goto que_init;
2220                 }
2221         }
2222
2223         if (ha->flags.running_gold_fw)
2224                 goto skip_dpc;
2225
2226         /*
2227          * Startup the kernel thread for this host adapter
2228          */
2229         ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
2230                         "%s_dpc", base_vha->host_str);
2231         if (IS_ERR(ha->dpc_thread)) {
2232                 qla_printk(KERN_WARNING, ha,
2233                     "Unable to start DPC thread!\n");
2234                 ret = PTR_ERR(ha->dpc_thread);
2235                 goto probe_failed;
2236         }
2237
2238 skip_dpc:
2239         list_add_tail(&base_vha->list, &ha->vp_list);
2240         base_vha->host->irq = ha->pdev->irq;
2241
2242         /* Initialized the timer */
2243         qla2x00_start_timer(base_vha, qla2x00_timer, WATCH_INTERVAL);
2244
2245         DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
2246             base_vha->host_no, ha));
2247
2248         if ((IS_QLA25XX(ha) || IS_QLA81XX(ha)) && ql2xenabledif) {
2249                 if (ha->fw_attributes & BIT_4) {
2250                         base_vha->flags.difdix_supported = 1;
2251                         DEBUG18(qla_printk(KERN_INFO, ha,
2252                             "Registering for DIF/DIX type 1 and 3"
2253                             " protection.\n"));
2254                         scsi_host_set_prot(host,
2255                             SHOST_DIF_TYPE1_PROTECTION
2256                             | SHOST_DIF_TYPE2_PROTECTION
2257                             | SHOST_DIF_TYPE3_PROTECTION
2258                             | SHOST_DIX_TYPE1_PROTECTION
2259                             | SHOST_DIX_TYPE2_PROTECTION
2260                             | SHOST_DIX_TYPE3_PROTECTION);
2261                         scsi_host_set_guard(host, SHOST_DIX_GUARD_CRC);
2262                 } else
2263                         base_vha->flags.difdix_supported = 0;
2264         }
2265
2266         ha->isp_ops->enable_intrs(ha);
2267
2268         ret = scsi_add_host(host, &pdev->dev);
2269         if (ret)
2270                 goto probe_failed;
2271
2272         base_vha->flags.init_done = 1;
2273         base_vha->flags.online = 1;
2274
2275         scsi_scan_host(host);
2276
2277         qla2x00_alloc_sysfs_attr(base_vha);
2278
2279         qla2x00_init_host_attr(base_vha);
2280
2281         qla2x00_dfs_setup(base_vha);
2282
2283         qla_printk(KERN_INFO, ha, "\n"
2284             " QLogic Fibre Channel HBA Driver: %s\n"
2285             "  QLogic %s - %s\n"
2286             "  ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
2287             qla2x00_version_str, ha->model_number,
2288             ha->model_desc ? ha->model_desc : "", pdev->device,
2289             ha->isp_ops->pci_info_str(base_vha, pci_info), pci_name(pdev),
2290             ha->flags.enable_64bit_addressing ? '+' : '-', base_vha->host_no,
2291             ha->isp_ops->fw_version_str(base_vha, fw_str));
2292
2293         return 0;
2294
2295 probe_init_failed:
2296         qla2x00_free_req_que(ha, req);
2297         qla2x00_free_rsp_que(ha, rsp);
2298         ha->max_req_queues = ha->max_rsp_queues = 0;
2299
2300 probe_failed:
2301         if (base_vha->timer_active)
2302                 qla2x00_stop_timer(base_vha);
2303         base_vha->flags.online = 0;
2304         if (ha->dpc_thread) {
2305                 struct task_struct *t = ha->dpc_thread;
2306
2307                 ha->dpc_thread = NULL;
2308                 kthread_stop(t);
2309         }
2310
2311         qla2x00_free_device(base_vha);
2312
2313         scsi_host_put(base_vha->host);
2314
2315 probe_hw_failed:
2316         if (IS_QLA82XX(ha)) {
2317                 qla82xx_idc_lock(ha);
2318                 qla82xx_clear_drv_active(ha);
2319                 qla82xx_idc_unlock(ha);
2320                 iounmap((device_reg_t __iomem *)ha->nx_pcibase);
2321                 if (!ql2xdbwr)
2322                         iounmap((device_reg_t __iomem *)ha->nxdb_wr_ptr);
2323         } else {
2324                 if (ha->iobase)
2325                         iounmap(ha->iobase);
2326         }
2327         pci_release_selected_regions(ha->pdev, ha->bars);
2328         kfree(ha);
2329         ha = NULL;
2330
2331 probe_out:
2332         pci_disable_device(pdev);
2333         return ret;
2334 }
2335
2336 static void
2337 qla2x00_remove_one(struct pci_dev *pdev)
2338 {
2339         scsi_qla_host_t *base_vha, *vha, *temp;
2340         struct qla_hw_data  *ha;
2341
2342         base_vha = pci_get_drvdata(pdev);
2343         ha = base_vha->hw;
2344
2345         list_for_each_entry_safe(vha, temp, &ha->vp_list, list) {
2346                 if (vha && vha->fc_vport)
2347                         fc_vport_terminate(vha->fc_vport);
2348         }
2349
2350         set_bit(UNLOADING, &base_vha->dpc_flags);
2351
2352         qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
2353
2354         qla2x00_dfs_remove(base_vha);
2355
2356         qla84xx_put_chip(base_vha);
2357
2358         /* Disable timer */
2359         if (base_vha->timer_active)
2360                 qla2x00_stop_timer(base_vha);
2361
2362         base_vha->flags.online = 0;
2363
2364         /* Flush the work queue and remove it */
2365         if (ha->wq) {
2366                 flush_workqueue(ha->wq);
2367                 destroy_workqueue(ha->wq);
2368                 ha->wq = NULL;
2369         }
2370
2371         /* Kill the kernel thread for this host */
2372         if (ha->dpc_thread) {
2373                 struct task_struct *t = ha->dpc_thread;
2374
2375                 /*
2376                  * qla2xxx_wake_dpc checks for ->dpc_thread
2377                  * so we need to zero it out.
2378                  */
2379                 ha->dpc_thread = NULL;
2380                 kthread_stop(t);
2381         }
2382
2383         qla2x00_free_sysfs_attr(base_vha);
2384
2385         fc_remove_host(base_vha->host);
2386
2387         scsi_remove_host(base_vha->host);
2388
2389         qla2x00_free_device(base_vha);
2390
2391         scsi_host_put(base_vha->host);
2392
2393         if (IS_QLA82XX(ha)) {
2394                 qla82xx_idc_lock(ha);
2395                 qla82xx_clear_drv_active(ha);
2396                 qla82xx_idc_unlock(ha);
2397
2398                 iounmap((device_reg_t __iomem *)ha->nx_pcibase);
2399                 if (!ql2xdbwr)
2400                         iounmap((device_reg_t __iomem *)ha->nxdb_wr_ptr);
2401         } else {
2402                 if (ha->iobase)
2403                         iounmap(ha->iobase);
2404
2405                 if (ha->mqiobase)
2406                         iounmap(ha->mqiobase);
2407         }
2408
2409         pci_release_selected_regions(ha->pdev, ha->bars);
2410         kfree(ha);
2411         ha = NULL;
2412
2413         pci_disable_pcie_error_reporting(pdev);
2414
2415         pci_disable_device(pdev);
2416         pci_set_drvdata(pdev, NULL);
2417 }
2418
2419 static void
2420 qla2x00_free_device(scsi_qla_host_t *vha)
2421 {
2422         struct qla_hw_data *ha = vha->hw;
2423
2424         qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
2425
2426         /* Disable timer */
2427         if (vha->timer_active)
2428                 qla2x00_stop_timer(vha);
2429
2430         /* Kill the kernel thread for this host */
2431         if (ha->dpc_thread) {
2432                 struct task_struct *t = ha->dpc_thread;
2433
2434                 /*
2435                  * qla2xxx_wake_dpc checks for ->dpc_thread
2436                  * so we need to zero it out.
2437                  */
2438                 ha->dpc_thread = NULL;
2439                 kthread_stop(t);
2440         }
2441
2442         qla25xx_delete_queues(vha);
2443
2444         if (ha->flags.fce_enabled)
2445                 qla2x00_disable_fce_trace(vha, NULL, NULL);
2446
2447         if (ha->eft)
2448                 qla2x00_disable_eft_trace(vha);
2449
2450         /* Stop currently executing firmware. */
2451         qla2x00_try_to_stop_firmware(vha);
2452
2453         vha->flags.online = 0;
2454
2455         /* turn-off interrupts on the card */
2456         if (ha->interrupts_on) {
2457                 vha->flags.init_done = 0;
2458                 ha->isp_ops->disable_intrs(ha);
2459         }
2460
2461         qla2x00_free_irqs(vha);
2462
2463         qla2x00_free_fcports(vha);
2464
2465         qla2x00_mem_free(ha);
2466
2467         qla2x00_free_queues(ha);
2468 }
2469
2470 void qla2x00_free_fcports(struct scsi_qla_host *vha)
2471 {
2472         fc_port_t *fcport, *tfcport;
2473
2474         list_for_each_entry_safe(fcport, tfcport, &vha->vp_fcports, list) {
2475                 list_del(&fcport->list);
2476                 kfree(fcport);
2477                 fcport = NULL;
2478         }
2479 }
2480
2481 static inline void
2482 qla2x00_schedule_rport_del(struct scsi_qla_host *vha, fc_port_t *fcport,
2483     int defer)
2484 {
2485         struct fc_rport *rport;
2486         scsi_qla_host_t *base_vha;
2487
2488         if (!fcport->rport)
2489                 return;
2490
2491         rport = fcport->rport;
2492         if (defer) {
2493                 base_vha = pci_get_drvdata(vha->hw->pdev);
2494                 spin_lock_irq(vha->host->host_lock);
2495                 fcport->drport = rport;
2496                 spin_unlock_irq(vha->host->host_lock);
2497                 set_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
2498                 qla2xxx_wake_dpc(base_vha);
2499         } else
2500                 fc_remote_port_delete(rport);
2501 }
2502
2503 /*
2504  * qla2x00_mark_device_lost Updates fcport state when device goes offline.
2505  *
2506  * Input: ha = adapter block pointer.  fcport = port structure pointer.
2507  *
2508  * Return: None.
2509  *
2510  * Context:
2511  */
2512 void qla2x00_mark_device_lost(scsi_qla_host_t *vha, fc_port_t *fcport,
2513     int do_login, int defer)
2514 {
2515         if (atomic_read(&fcport->state) == FCS_ONLINE &&
2516             vha->vp_idx == fcport->vp_idx) {
2517                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2518                 qla2x00_schedule_rport_del(vha, fcport, defer);
2519         }
2520         /*
2521          * We may need to retry the login, so don't change the state of the
2522          * port but do the retries.
2523          */
2524         if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
2525                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2526
2527         if (!do_login)
2528                 return;
2529
2530         if (fcport->login_retry == 0) {
2531                 fcport->login_retry = vha->hw->login_retry_count;
2532                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2533
2534                 DEBUG(printk("scsi(%ld): Port login retry: "
2535                     "%02x%02x%02x%02x%02x%02x%02x%02x, "
2536                     "id = 0x%04x retry cnt=%d\n",
2537                     vha->host_no,
2538                     fcport->port_name[0],
2539                     fcport->port_name[1],
2540                     fcport->port_name[2],
2541                     fcport->port_name[3],
2542                     fcport->port_name[4],
2543                     fcport->port_name[5],
2544                     fcport->port_name[6],
2545                     fcport->port_name[7],
2546                     fcport->loop_id,
2547                     fcport->login_retry));
2548         }
2549 }
2550
2551 /*
2552  * qla2x00_mark_all_devices_lost
2553  *      Updates fcport state when device goes offline.
2554  *
2555  * Input:
2556  *      ha = adapter block pointer.
2557  *      fcport = port structure pointer.
2558  *
2559  * Return:
2560  *      None.
2561  *
2562  * Context:
2563  */
2564 void
2565 qla2x00_mark_all_devices_lost(scsi_qla_host_t *vha, int defer)
2566 {
2567         fc_port_t *fcport;
2568
2569         list_for_each_entry(fcport, &vha->vp_fcports, list) {
2570                 if (vha->vp_idx != 0 && vha->vp_idx != fcport->vp_idx)
2571                         continue;
2572
2573                 /*
2574                  * No point in marking the device as lost, if the device is
2575                  * already DEAD.
2576                  */
2577                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
2578                         continue;
2579                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
2580                         if (defer)
2581                                 qla2x00_schedule_rport_del(vha, fcport, defer);
2582                         else if (vha->vp_idx == fcport->vp_idx)
2583                                 qla2x00_schedule_rport_del(vha, fcport, defer);
2584                 }
2585                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2586         }
2587 }
2588
2589 /*
2590 * qla2x00_mem_alloc
2591 *      Allocates adapter memory.
2592 *
2593 * Returns:
2594 *      0  = success.
2595 *      !0  = failure.
2596 */
2597 static int
2598 qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
2599         struct req_que **req, struct rsp_que **rsp)
2600 {
2601         char    name[16];
2602
2603         ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
2604                 &ha->init_cb_dma, GFP_KERNEL);
2605         if (!ha->init_cb)
2606                 goto fail;
2607
2608         ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
2609                 &ha->gid_list_dma, GFP_KERNEL);
2610         if (!ha->gid_list)
2611                 goto fail_free_init_cb;
2612
2613         ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
2614         if (!ha->srb_mempool)
2615                 goto fail_free_gid_list;
2616
2617         if (IS_QLA82XX(ha)) {
2618                 /* Allocate cache for CT6 Ctx. */
2619                 if (!ctx_cachep) {
2620                         ctx_cachep = kmem_cache_create("qla2xxx_ctx",
2621                                 sizeof(struct ct6_dsd), 0,
2622                                 SLAB_HWCACHE_ALIGN, NULL);
2623                         if (!ctx_cachep)
2624                                 goto fail_free_gid_list;
2625                 }
2626                 ha->ctx_mempool = mempool_create_slab_pool(SRB_MIN_REQ,
2627                         ctx_cachep);
2628                 if (!ha->ctx_mempool)
2629                         goto fail_free_srb_mempool;
2630         }
2631
2632         /* Get memory for cached NVRAM */
2633         ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
2634         if (!ha->nvram)
2635                 goto fail_free_ctx_mempool;
2636
2637         snprintf(name, sizeof(name), "%s_%d", QLA2XXX_DRIVER_NAME,
2638                 ha->pdev->device);
2639         ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2640                 DMA_POOL_SIZE, 8, 0);
2641         if (!ha->s_dma_pool)
2642                 goto fail_free_nvram;
2643
2644         if (IS_QLA82XX(ha) || ql2xenabledif) {
2645                 ha->dl_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2646                         DSD_LIST_DMA_POOL_SIZE, 8, 0);
2647                 if (!ha->dl_dma_pool) {
2648                         qla_printk(KERN_WARNING, ha,
2649                             "Memory Allocation failed - dl_dma_pool\n");
2650                         goto fail_s_dma_pool;
2651                 }
2652
2653                 ha->fcp_cmnd_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2654                         FCP_CMND_DMA_POOL_SIZE, 8, 0);
2655                 if (!ha->fcp_cmnd_dma_pool) {
2656                         qla_printk(KERN_WARNING, ha,
2657                             "Memory Allocation failed - fcp_cmnd_dma_pool\n");
2658                         goto fail_dl_dma_pool;
2659                 }
2660         }
2661
2662         /* Allocate memory for SNS commands */
2663         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2664         /* Get consistent memory allocated for SNS commands */
2665                 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
2666                 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
2667                 if (!ha->sns_cmd)
2668                         goto fail_dma_pool;
2669         } else {
2670         /* Get consistent memory allocated for MS IOCB */
2671                 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2672                         &ha->ms_iocb_dma);
2673                 if (!ha->ms_iocb)
2674                         goto fail_dma_pool;
2675         /* Get consistent memory allocated for CT SNS commands */
2676                 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2677                         sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
2678                 if (!ha->ct_sns)
2679                         goto fail_free_ms_iocb;
2680         }
2681
2682         /* Allocate memory for request ring */
2683         *req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
2684         if (!*req) {
2685                 DEBUG(printk("Unable to allocate memory for req\n"));
2686                 goto fail_req;
2687         }
2688         (*req)->length = req_len;
2689         (*req)->ring = dma_alloc_coherent(&ha->pdev->dev,
2690                 ((*req)->length + 1) * sizeof(request_t),
2691                 &(*req)->dma, GFP_KERNEL);
2692         if (!(*req)->ring) {
2693                 DEBUG(printk("Unable to allocate memory for req_ring\n"));
2694                 goto fail_req_ring;
2695         }
2696         /* Allocate memory for response ring */
2697         *rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
2698         if (!*rsp) {
2699                 qla_printk(KERN_WARNING, ha,
2700                         "Unable to allocate memory for rsp\n");
2701                 goto fail_rsp;
2702         }
2703         (*rsp)->hw = ha;
2704         (*rsp)->length = rsp_len;
2705         (*rsp)->ring = dma_alloc_coherent(&ha->pdev->dev,
2706                 ((*rsp)->length + 1) * sizeof(response_t),
2707                 &(*rsp)->dma, GFP_KERNEL);
2708         if (!(*rsp)->ring) {
2709                 qla_printk(KERN_WARNING, ha,
2710                         "Unable to allocate memory for rsp_ring\n");
2711                 goto fail_rsp_ring;
2712         }
2713         (*req)->rsp = *rsp;
2714         (*rsp)->req = *req;
2715         /* Allocate memory for NVRAM data for vports */
2716         if (ha->nvram_npiv_size) {
2717                 ha->npiv_info = kzalloc(sizeof(struct qla_npiv_entry) *
2718                                         ha->nvram_npiv_size, GFP_KERNEL);
2719                 if (!ha->npiv_info) {
2720                         qla_printk(KERN_WARNING, ha,
2721                                 "Unable to allocate memory for npiv info\n");
2722                         goto fail_npiv_info;
2723                 }
2724         } else
2725                 ha->npiv_info = NULL;
2726
2727         /* Get consistent memory allocated for EX-INIT-CB. */
2728         if (IS_QLA8XXX_TYPE(ha)) {
2729                 ha->ex_init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2730                     &ha->ex_init_cb_dma);
2731                 if (!ha->ex_init_cb)
2732                         goto fail_ex_init_cb;
2733         }
2734
2735         INIT_LIST_HEAD(&ha->gbl_dsd_list);
2736
2737         /* Get consistent memory allocated for Async Port-Database. */
2738         if (!IS_FWI2_CAPABLE(ha)) {
2739                 ha->async_pd = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2740                         &ha->async_pd_dma);
2741                 if (!ha->async_pd)
2742                         goto fail_async_pd;
2743         }
2744
2745         INIT_LIST_HEAD(&ha->vp_list);
2746         return 1;
2747
2748 fail_async_pd:
2749         dma_pool_free(ha->s_dma_pool, ha->ex_init_cb, ha->ex_init_cb_dma);
2750 fail_ex_init_cb:
2751         kfree(ha->npiv_info);
2752 fail_npiv_info:
2753         dma_free_coherent(&ha->pdev->dev, ((*rsp)->length + 1) *
2754                 sizeof(response_t), (*rsp)->ring, (*rsp)->dma);
2755         (*rsp)->ring = NULL;
2756         (*rsp)->dma = 0;
2757 fail_rsp_ring:
2758         kfree(*rsp);
2759 fail_rsp:
2760         dma_free_coherent(&ha->pdev->dev, ((*req)->length + 1) *
2761                 sizeof(request_t), (*req)->ring, (*req)->dma);
2762         (*req)->ring = NULL;
2763         (*req)->dma = 0;
2764 fail_req_ring:
2765         kfree(*req);
2766 fail_req:
2767         dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2768                 ha->ct_sns, ha->ct_sns_dma);
2769         ha->ct_sns = NULL;
2770         ha->ct_sns_dma = 0;
2771 fail_free_ms_iocb:
2772         dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2773         ha->ms_iocb = NULL;
2774         ha->ms_iocb_dma = 0;
2775 fail_dma_pool:
2776         if (IS_QLA82XX(ha) || ql2xenabledif) {
2777                 dma_pool_destroy(ha->fcp_cmnd_dma_pool);
2778                 ha->fcp_cmnd_dma_pool = NULL;
2779         }
2780 fail_dl_dma_pool:
2781         if (IS_QLA82XX(ha) || ql2xenabledif) {
2782                 dma_pool_destroy(ha->dl_dma_pool);
2783                 ha->dl_dma_pool = NULL;
2784         }
2785 fail_s_dma_pool:
2786         dma_pool_destroy(ha->s_dma_pool);
2787         ha->s_dma_pool = NULL;
2788 fail_free_nvram:
2789         kfree(ha->nvram);
2790         ha->nvram = NULL;
2791 fail_free_ctx_mempool:
2792         mempool_destroy(ha->ctx_mempool);
2793         ha->ctx_mempool = NULL;
2794 fail_free_srb_mempool:
2795         mempool_destroy(ha->srb_mempool);
2796         ha->srb_mempool = NULL;
2797 fail_free_gid_list:
2798         dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2799         ha->gid_list_dma);
2800         ha->gid_list = NULL;
2801         ha->gid_list_dma = 0;
2802 fail_free_init_cb:
2803         dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
2804         ha->init_cb_dma);
2805         ha->init_cb = NULL;
2806         ha->init_cb_dma = 0;
2807 fail:
2808         DEBUG(printk("%s: Memory allocation failure\n", __func__));
2809         return -ENOMEM;
2810 }
2811
2812 /*
2813 * qla2x00_mem_free
2814 *      Frees all adapter allocated memory.
2815 *
2816 * Input:
2817 *      ha = adapter block pointer.
2818 */
2819 static void
2820 qla2x00_mem_free(struct qla_hw_data *ha)
2821 {
2822         if (ha->srb_mempool)
2823                 mempool_destroy(ha->srb_mempool);
2824
2825         if (ha->fce)
2826                 dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
2827                 ha->fce_dma);
2828
2829         if (ha->fw_dump) {
2830                 if (ha->eft)
2831                         dma_free_coherent(&ha->pdev->dev,
2832                         ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2833                 vfree(ha->fw_dump);
2834         }
2835
2836         if (ha->dcbx_tlv)
2837                 dma_free_coherent(&ha->pdev->dev, DCBX_TLV_DATA_SIZE,
2838                     ha->dcbx_tlv, ha->dcbx_tlv_dma);
2839
2840         if (ha->xgmac_data)
2841                 dma_free_coherent(&ha->pdev->dev, XGMAC_DATA_SIZE,
2842                     ha->xgmac_data, ha->xgmac_data_dma);
2843
2844         if (ha->sns_cmd)
2845                 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2846                 ha->sns_cmd, ha->sns_cmd_dma);
2847
2848         if (ha->ct_sns)
2849                 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2850                 ha->ct_sns, ha->ct_sns_dma);
2851
2852         if (ha->sfp_data)
2853                 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2854
2855         if (ha->edc_data)
2856                 dma_pool_free(ha->s_dma_pool, ha->edc_data, ha->edc_data_dma);
2857
2858         if (ha->ms_iocb)
2859                 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2860
2861         if (ha->ex_init_cb)
2862                 dma_pool_free(ha->s_dma_pool,
2863                         ha->ex_init_cb, ha->ex_init_cb_dma);
2864
2865         if (ha->async_pd)
2866                 dma_pool_free(ha->s_dma_pool, ha->async_pd, ha->async_pd_dma);
2867
2868         if (ha->s_dma_pool)
2869                 dma_pool_destroy(ha->s_dma_pool);
2870
2871         if (ha->gid_list)
2872                 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2873                 ha->gid_list_dma);
2874
2875         if (IS_QLA82XX(ha)) {
2876                 if (!list_empty(&ha->gbl_dsd_list)) {
2877                         struct dsd_dma *dsd_ptr, *tdsd_ptr;
2878
2879                         /* clean up allocated prev pool */
2880                         list_for_each_entry_safe(dsd_ptr,
2881                                 tdsd_ptr, &ha->gbl_dsd_list, list) {
2882                                 dma_pool_free(ha->dl_dma_pool,
2883                                 dsd_ptr->dsd_addr, dsd_ptr->dsd_list_dma);
2884                                 list_del(&dsd_ptr->list);
2885                                 kfree(dsd_ptr);
2886                         }
2887                 }
2888         }
2889
2890         if (ha->dl_dma_pool)
2891                 dma_pool_destroy(ha->dl_dma_pool);
2892
2893         if (ha->fcp_cmnd_dma_pool)
2894                 dma_pool_destroy(ha->fcp_cmnd_dma_pool);
2895
2896         if (ha->ctx_mempool)
2897                 mempool_destroy(ha->ctx_mempool);
2898
2899         if (ha->init_cb)
2900                 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
2901                         ha->init_cb, ha->init_cb_dma);
2902         vfree(ha->optrom_buffer);
2903         kfree(ha->nvram);
2904         kfree(ha->npiv_info);
2905
2906         ha->srb_mempool = NULL;
2907         ha->ctx_mempool = NULL;
2908         ha->eft = NULL;
2909         ha->eft_dma = 0;
2910         ha->sns_cmd = NULL;
2911         ha->sns_cmd_dma = 0;
2912         ha->ct_sns = NULL;
2913         ha->ct_sns_dma = 0;
2914         ha->ms_iocb = NULL;
2915         ha->ms_iocb_dma = 0;
2916         ha->init_cb = NULL;
2917         ha->init_cb_dma = 0;
2918         ha->ex_init_cb = NULL;
2919         ha->ex_init_cb_dma = 0;
2920         ha->async_pd = NULL;
2921         ha->async_pd_dma = 0;
2922
2923         ha->s_dma_pool = NULL;
2924         ha->dl_dma_pool = NULL;
2925         ha->fcp_cmnd_dma_pool = NULL;
2926
2927         ha->gid_list = NULL;
2928         ha->gid_list_dma = 0;
2929
2930         ha->fw_dump = NULL;
2931         ha->fw_dumped = 0;
2932         ha->fw_dump_reading = 0;
2933 }
2934
2935 struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht,
2936                                                 struct qla_hw_data *ha)
2937 {
2938         struct Scsi_Host *host;
2939         struct scsi_qla_host *vha = NULL;
2940
2941         host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
2942         if (host == NULL) {
2943                 printk(KERN_WARNING
2944                 "qla2xxx: Couldn't allocate host from scsi layer!\n");
2945                 goto fail;
2946         }
2947
2948         /* Clear our data area */
2949         vha = shost_priv(host);
2950         memset(vha, 0, sizeof(scsi_qla_host_t));
2951
2952         vha->host = host;
2953         vha->host_no = host->host_no;
2954         vha->hw = ha;
2955
2956         INIT_LIST_HEAD(&vha->vp_fcports);
2957         INIT_LIST_HEAD(&vha->work_list);
2958         INIT_LIST_HEAD(&vha->list);
2959
2960         spin_lock_init(&vha->work_lock);
2961
2962         sprintf(vha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, vha->host_no);
2963         return vha;
2964
2965 fail:
2966         return vha;
2967 }
2968
2969 static struct qla_work_evt *
2970 qla2x00_alloc_work(struct scsi_qla_host *vha, enum qla_work_type type)
2971 {
2972         struct qla_work_evt *e;
2973
2974         e = kzalloc(sizeof(struct qla_work_evt), GFP_ATOMIC);
2975         if (!e)
2976                 return NULL;
2977
2978         INIT_LIST_HEAD(&e->list);
2979         e->type = type;
2980         e->flags = QLA_EVT_FLAG_FREE;
2981         return e;
2982 }
2983
2984 static int
2985 qla2x00_post_work(struct scsi_qla_host *vha, struct qla_work_evt *e)
2986 {
2987         unsigned long flags;
2988
2989         spin_lock_irqsave(&vha->work_lock, flags);
2990         list_add_tail(&e->list, &vha->work_list);
2991         spin_unlock_irqrestore(&vha->work_lock, flags);
2992         qla2xxx_wake_dpc(vha);
2993
2994         return QLA_SUCCESS;
2995 }
2996
2997 int
2998 qla2x00_post_aen_work(struct scsi_qla_host *vha, enum fc_host_event_code code,
2999     u32 data)
3000 {
3001         struct qla_work_evt *e;
3002
3003         e = qla2x00_alloc_work(vha, QLA_EVT_AEN);
3004         if (!e)
3005                 return QLA_FUNCTION_FAILED;
3006
3007         e->u.aen.code = code;
3008         e->u.aen.data = data;
3009         return qla2x00_post_work(vha, e);
3010 }
3011
3012 int
3013 qla2x00_post_idc_ack_work(struct scsi_qla_host *vha, uint16_t *mb)
3014 {
3015         struct qla_work_evt *e;
3016
3017         e = qla2x00_alloc_work(vha, QLA_EVT_IDC_ACK);
3018         if (!e)
3019                 return QLA_FUNCTION_FAILED;
3020
3021         memcpy(e->u.idc_ack.mb, mb, QLA_IDC_ACK_REGS * sizeof(uint16_t));
3022         return qla2x00_post_work(vha, e);
3023 }
3024
3025 #define qla2x00_post_async_work(name, type)     \
3026 int qla2x00_post_async_##name##_work(           \
3027     struct scsi_qla_host *vha,                  \
3028     fc_port_t *fcport, uint16_t *data)          \
3029 {                                               \
3030         struct qla_work_evt *e;                 \
3031                                                 \
3032         e = qla2x00_alloc_work(vha, type);      \
3033         if (!e)                                 \
3034                 return QLA_FUNCTION_FAILED;     \
3035                                                 \
3036         e->u.logio.fcport = fcport;             \
3037         if (data) {                             \
3038                 e->u.logio.data[0] = data[0];   \
3039                 e->u.logio.data[1] = data[1];   \
3040         }                                       \
3041         return qla2x00_post_work(vha, e);       \
3042 }
3043
3044 qla2x00_post_async_work(login, QLA_EVT_ASYNC_LOGIN);
3045 qla2x00_post_async_work(login_done, QLA_EVT_ASYNC_LOGIN_DONE);
3046 qla2x00_post_async_work(logout, QLA_EVT_ASYNC_LOGOUT);
3047 qla2x00_post_async_work(logout_done, QLA_EVT_ASYNC_LOGOUT_DONE);
3048 qla2x00_post_async_work(adisc, QLA_EVT_ASYNC_ADISC);
3049 qla2x00_post_async_work(adisc_done, QLA_EVT_ASYNC_ADISC_DONE);
3050
3051 int
3052 qla2x00_post_uevent_work(struct scsi_qla_host *vha, u32 code)
3053 {
3054         struct qla_work_evt *e;
3055
3056         e = qla2x00_alloc_work(vha, QLA_EVT_UEVENT);
3057         if (!e)
3058                 return QLA_FUNCTION_FAILED;
3059
3060         e->u.uevent.code = code;
3061         return qla2x00_post_work(vha, e);
3062 }
3063
3064 static void
3065 qla2x00_uevent_emit(struct scsi_qla_host *vha, u32 code)
3066 {
3067         char event_string[40];
3068         char *envp[] = { event_string, NULL };
3069
3070         switch (code) {
3071         case QLA_UEVENT_CODE_FW_DUMP:
3072                 snprintf(event_string, sizeof(event_string), "FW_DUMP=%ld",
3073                     vha->host_no);
3074                 break;
3075         default:
3076                 /* do nothing */
3077                 break;
3078         }
3079         kobject_uevent_env(&vha->hw->pdev->dev.kobj, KOBJ_CHANGE, envp);
3080 }
3081
3082 void
3083 qla2x00_do_work(struct scsi_qla_host *vha)
3084 {
3085         struct qla_work_evt *e, *tmp;
3086         unsigned long flags;
3087         LIST_HEAD(work);
3088
3089         spin_lock_irqsave(&vha->work_lock, flags);
3090         list_splice_init(&vha->work_list, &work);
3091         spin_unlock_irqrestore(&vha->work_lock, flags);
3092
3093         list_for_each_entry_safe(e, tmp, &work, list) {
3094                 list_del_init(&e->list);
3095
3096                 switch (e->type) {
3097                 case QLA_EVT_AEN:
3098                         fc_host_post_event(vha->host, fc_get_event_number(),
3099                             e->u.aen.code, e->u.aen.data);
3100                         break;
3101                 case QLA_EVT_IDC_ACK:
3102                         qla81xx_idc_ack(vha, e->u.idc_ack.mb);
3103                         break;
3104                 case QLA_EVT_ASYNC_LOGIN:
3105                         qla2x00_async_login(vha, e->u.logio.fcport,
3106                             e->u.logio.data);
3107                         break;
3108                 case QLA_EVT_ASYNC_LOGIN_DONE:
3109                         qla2x00_async_login_done(vha, e->u.logio.fcport,
3110                             e->u.logio.data);
3111                         break;
3112                 case QLA_EVT_ASYNC_LOGOUT:
3113                         qla2x00_async_logout(vha, e->u.logio.fcport);
3114                         break;
3115                 case QLA_EVT_ASYNC_LOGOUT_DONE:
3116                         qla2x00_async_logout_done(vha, e->u.logio.fcport,
3117                             e->u.logio.data);
3118                         break;
3119                 case QLA_EVT_ASYNC_ADISC:
3120                         qla2x00_async_adisc(vha, e->u.logio.fcport,
3121                             e->u.logio.data);
3122                         break;
3123                 case QLA_EVT_ASYNC_ADISC_DONE:
3124                         qla2x00_async_adisc_done(vha, e->u.logio.fcport,
3125                             e->u.logio.data);
3126                         break;
3127                 case QLA_EVT_UEVENT:
3128                         qla2x00_uevent_emit(vha, e->u.uevent.code);
3129                         break;
3130                 }
3131                 if (e->flags & QLA_EVT_FLAG_FREE)
3132                         kfree(e);
3133         }
3134 }
3135
3136 /* Relogins all the fcports of a vport
3137  * Context: dpc thread
3138  */
3139 void qla2x00_relogin(struct scsi_qla_host *vha)
3140 {
3141         fc_port_t       *fcport;
3142         int status;
3143         uint16_t        next_loopid = 0;
3144         struct qla_hw_data *ha = vha->hw;
3145         uint16_t data[2];
3146
3147         list_for_each_entry(fcport, &vha->vp_fcports, list) {
3148         /*
3149          * If the port is not ONLINE then try to login
3150          * to it if we haven't run out of retries.
3151          */
3152                 if (atomic_read(&fcport->state) != FCS_ONLINE &&
3153                     fcport->login_retry && !(fcport->flags & FCF_ASYNC_SENT)) {
3154                         fcport->login_retry--;
3155                         if (fcport->flags & FCF_FABRIC_DEVICE) {
3156                                 if (fcport->flags & FCF_FCP2_DEVICE)
3157                                         ha->isp_ops->fabric_logout(vha,
3158                                                         fcport->loop_id,
3159                                                         fcport->d_id.b.domain,
3160                                                         fcport->d_id.b.area,
3161                                                         fcport->d_id.b.al_pa);
3162
3163                                 if (IS_ALOGIO_CAPABLE(ha)) {
3164                                         fcport->flags |= FCF_ASYNC_SENT;
3165                                         data[0] = 0;
3166                                         data[1] = QLA_LOGIO_LOGIN_RETRIED;
3167                                         status = qla2x00_post_async_login_work(
3168                                             vha, fcport, data);
3169                                         if (status == QLA_SUCCESS)
3170                                                 continue;
3171                                         /* Attempt a retry. */
3172                                         status = 1;
3173                                 } else
3174                                         status = qla2x00_fabric_login(vha,
3175                                             fcport, &next_loopid);
3176                         } else
3177                                 status = qla2x00_local_device_login(vha,
3178                                                                 fcport);
3179
3180                         if (status == QLA_SUCCESS) {
3181                                 fcport->old_loop_id = fcport->loop_id;
3182
3183                                 DEBUG(printk("scsi(%ld): port login OK: logged "
3184                                 "in ID 0x%x\n", vha->host_no, fcport->loop_id));
3185
3186                                 qla2x00_update_fcport(vha, fcport);
3187
3188                         } else if (status == 1) {
3189                                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
3190                                 /* retry the login again */
3191                                 DEBUG(printk("scsi(%ld): Retrying"
3192                                 " %d login again loop_id 0x%x\n",
3193                                 vha->host_no, fcport->login_retry,
3194                                                 fcport->loop_id));
3195                         } else {
3196                                 fcport->login_retry = 0;
3197                         }
3198
3199                         if (fcport->login_retry == 0 && status != QLA_SUCCESS)
3200                                 fcport->loop_id = FC_NO_LOOP_ID;
3201                 }
3202                 if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
3203                         break;
3204         }
3205 }
3206
3207 /**************************************************************************
3208 * qla2x00_do_dpc
3209 *   This kernel thread is a task that is schedule by the interrupt handler
3210 *   to perform the background processing for interrupts.
3211 *
3212 * Notes:
3213 * This task always run in the context of a kernel thread.  It
3214 * is kick-off by the driver's detect code and starts up
3215 * up one per adapter. It immediately goes to sleep and waits for
3216 * some fibre event.  When either the interrupt handler or
3217 * the timer routine detects a event it will one of the task
3218 * bits then wake us up.
3219 **************************************************************************/
3220 static int
3221 qla2x00_do_dpc(void *data)
3222 {
3223         int             rval;
3224         scsi_qla_host_t *base_vha;
3225         struct qla_hw_data *ha;
3226
3227         ha = (struct qla_hw_data *)data;
3228         base_vha = pci_get_drvdata(ha->pdev);
3229
3230         set_user_nice(current, -20);
3231
3232         while (!kthread_should_stop()) {
3233                 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
3234
3235                 set_current_state(TASK_INTERRUPTIBLE);
3236                 schedule();
3237                 __set_current_state(TASK_RUNNING);
3238
3239                 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
3240
3241                 /* Initialization not yet finished. Don't do anything yet. */
3242                 if (!base_vha->flags.init_done)
3243                         continue;
3244
3245                 if (ha->flags.eeh_busy) {
3246                         DEBUG17(qla_printk(KERN_WARNING, ha,
3247                             "qla2x00_do_dpc: dpc_flags: %lx\n",
3248                             base_vha->dpc_flags));
3249                         continue;
3250                 }
3251
3252                 DEBUG3(printk("scsi(%ld): DPC handler\n", base_vha->host_no));
3253
3254                 ha->dpc_active = 1;
3255
3256                 if (ha->flags.mbox_busy) {
3257                         ha->dpc_active = 0;
3258                         continue;
3259                 }
3260
3261                 qla2x00_do_work(base_vha);
3262
3263                 if (IS_QLA82XX(ha)) {
3264                         if (test_and_clear_bit(ISP_UNRECOVERABLE,
3265                                 &base_vha->dpc_flags)) {
3266                                 qla82xx_idc_lock(ha);
3267                                 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3268                                         QLA82XX_DEV_FAILED);
3269                                 qla82xx_idc_unlock(ha);
3270                                 qla_printk(KERN_INFO, ha,
3271                                         "HW State: FAILED\n");
3272                                 qla82xx_device_state_handler(base_vha);
3273                                 continue;
3274                         }
3275
3276                         if (test_and_clear_bit(FCOE_CTX_RESET_NEEDED,
3277                                 &base_vha->dpc_flags)) {
3278
3279                                 DEBUG(printk(KERN_INFO
3280                                         "scsi(%ld): dpc: sched "
3281                                         "qla82xx_fcoe_ctx_reset ha = %p\n",
3282                                         base_vha->host_no, ha));
3283                                 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
3284                                         &base_vha->dpc_flags))) {
3285                                         if (qla82xx_fcoe_ctx_reset(base_vha)) {
3286                                                 /* FCoE-ctx reset failed.
3287                                                  * Escalate to chip-reset
3288                                                  */
3289                                                 set_bit(ISP_ABORT_NEEDED,
3290                                                         &base_vha->dpc_flags);
3291                                         }
3292                                         clear_bit(ABORT_ISP_ACTIVE,
3293                                                 &base_vha->dpc_flags);
3294                                 }
3295
3296                                 DEBUG(printk("scsi(%ld): dpc:"
3297                                         " qla82xx_fcoe_ctx_reset end\n",
3298                                         base_vha->host_no));
3299                         }
3300                 }
3301
3302                 if (test_and_clear_bit(ISP_ABORT_NEEDED,
3303                                                 &base_vha->dpc_flags)) {
3304
3305                         DEBUG(printk("scsi(%ld): dpc: sched "
3306                             "qla2x00_abort_isp ha = %p\n",
3307                             base_vha->host_no, ha));
3308                         if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
3309                             &base_vha->dpc_flags))) {
3310
3311                                 if (ha->isp_ops->abort_isp(base_vha)) {
3312                                         /* failed. retry later */
3313                                         set_bit(ISP_ABORT_NEEDED,
3314                                             &base_vha->dpc_flags);
3315                                 }
3316                                 clear_bit(ABORT_ISP_ACTIVE,
3317                                                 &base_vha->dpc_flags);
3318                         }
3319
3320                         DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
3321                             base_vha->host_no));
3322                 }
3323
3324                 if (test_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags)) {
3325                         qla2x00_update_fcports(base_vha);
3326                         clear_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
3327                 }
3328
3329                 if (test_and_clear_bit(RESET_MARKER_NEEDED,
3330                                                         &base_vha->dpc_flags) &&
3331                     (!(test_and_set_bit(RESET_ACTIVE, &base_vha->dpc_flags)))) {
3332
3333                         DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
3334                             base_vha->host_no));
3335
3336                         qla2x00_rst_aen(base_vha);
3337                         clear_bit(RESET_ACTIVE, &base_vha->dpc_flags);
3338                 }
3339
3340                 /* Retry each device up to login retry count */
3341                 if ((test_and_clear_bit(RELOGIN_NEEDED,
3342                                                 &base_vha->dpc_flags)) &&
3343                     !test_bit(LOOP_RESYNC_NEEDED, &base_vha->dpc_flags) &&
3344                     atomic_read(&base_vha->loop_state) != LOOP_DOWN) {
3345
3346                         DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
3347                                         base_vha->host_no));
3348                         qla2x00_relogin(base_vha);
3349
3350                         DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
3351                             base_vha->host_no));
3352                 }
3353
3354                 if (test_and_clear_bit(LOOP_RESYNC_NEEDED,
3355                                                         &base_vha->dpc_flags)) {
3356
3357                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
3358                                 base_vha->host_no));
3359
3360                         if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
3361                             &base_vha->dpc_flags))) {
3362
3363                                 rval = qla2x00_loop_resync(base_vha);
3364
3365                                 clear_bit(LOOP_RESYNC_ACTIVE,
3366                                                 &base_vha->dpc_flags);
3367                         }
3368
3369                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
3370                             base_vha->host_no));
3371                 }
3372
3373                 if (test_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags) &&
3374                     atomic_read(&base_vha->loop_state) == LOOP_READY) {
3375                         clear_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags);
3376                         qla2xxx_flash_npiv_conf(base_vha);
3377                 }
3378
3379                 if (!ha->interrupts_on)
3380                         ha->isp_ops->enable_intrs(ha);
3381
3382                 if (test_and_clear_bit(BEACON_BLINK_NEEDED,
3383                                         &base_vha->dpc_flags))
3384                         ha->isp_ops->beacon_blink(base_vha);
3385
3386                 qla2x00_do_dpc_all_vps(base_vha);
3387
3388                 ha->dpc_active = 0;
3389         } /* End of while(1) */
3390
3391         DEBUG(printk("scsi(%ld): DPC handler exiting\n", base_vha->host_no));
3392
3393         /*
3394          * Make sure that nobody tries to wake us up again.
3395          */
3396         ha->dpc_active = 0;
3397
3398         /* Cleanup any residual CTX SRBs. */
3399         qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
3400
3401         return 0;
3402 }
3403
3404 void
3405 qla2xxx_wake_dpc(struct scsi_qla_host *vha)
3406 {
3407         struct qla_hw_data *ha = vha->hw;
3408         struct task_struct *t = ha->dpc_thread;
3409
3410         if (!test_bit(UNLOADING, &vha->dpc_flags) && t)
3411                 wake_up_process(t);
3412 }
3413
3414 /*
3415 *  qla2x00_rst_aen
3416 *      Processes asynchronous reset.
3417 *
3418 * Input:
3419 *      ha  = adapter block pointer.
3420 */
3421 static void
3422 qla2x00_rst_aen(scsi_qla_host_t *vha)
3423 {
3424         if (vha->flags.online && !vha->flags.reset_active &&
3425             !atomic_read(&vha->loop_down_timer) &&
3426             !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) {
3427                 do {
3428                         clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
3429
3430                         /*
3431                          * Issue marker command only when we are going to start
3432                          * the I/O.
3433                          */
3434                         vha->marker_needed = 1;
3435                 } while (!atomic_read(&vha->loop_down_timer) &&
3436                     (test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags)));
3437         }
3438 }
3439
3440 static void
3441 qla2x00_sp_free_dma(srb_t *sp)
3442 {
3443         struct scsi_cmnd *cmd = sp->cmd;
3444         struct qla_hw_data *ha = sp->fcport->vha->hw;
3445
3446         if (sp->flags & SRB_DMA_VALID) {
3447                 scsi_dma_unmap(cmd);
3448                 sp->flags &= ~SRB_DMA_VALID;
3449         }
3450
3451         if (sp->flags & SRB_CRC_PROT_DMA_VALID) {
3452                 dma_unmap_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
3453                     scsi_prot_sg_count(cmd), cmd->sc_data_direction);
3454                 sp->flags &= ~SRB_CRC_PROT_DMA_VALID;
3455         }
3456
3457         if (sp->flags & SRB_CRC_CTX_DSD_VALID) {
3458                 /* List assured to be having elements */
3459                 qla2x00_clean_dsd_pool(ha, sp);
3460                 sp->flags &= ~SRB_CRC_CTX_DSD_VALID;
3461         }
3462
3463         if (sp->flags & SRB_CRC_CTX_DMA_VALID) {
3464                 dma_pool_free(ha->dl_dma_pool, sp->ctx,
3465                     ((struct crc_context *)sp->ctx)->crc_ctx_dma);
3466                 sp->flags &= ~SRB_CRC_CTX_DMA_VALID;
3467         }
3468
3469         CMD_SP(cmd) = NULL;
3470 }
3471
3472 static void
3473 qla2x00_sp_final_compl(struct qla_hw_data *ha, srb_t *sp)
3474 {
3475         struct scsi_cmnd *cmd = sp->cmd;
3476
3477         qla2x00_sp_free_dma(sp);
3478
3479         if (sp->flags & SRB_FCP_CMND_DMA_VALID) {
3480                 struct ct6_dsd *ctx = sp->ctx;
3481                 dma_pool_free(ha->fcp_cmnd_dma_pool, ctx->fcp_cmnd,
3482                         ctx->fcp_cmnd_dma);
3483                 list_splice(&ctx->dsd_list, &ha->gbl_dsd_list);
3484                 ha->gbl_dsd_inuse -= ctx->dsd_use_cnt;
3485                 ha->gbl_dsd_avail += ctx->dsd_use_cnt;
3486                 mempool_free(sp->ctx, ha->ctx_mempool);
3487                 sp->ctx = NULL;
3488         }
3489
3490         mempool_free(sp, ha->srb_mempool);
3491         cmd->scsi_done(cmd);
3492 }
3493
3494 void
3495 qla2x00_sp_compl(struct qla_hw_data *ha, srb_t *sp)
3496 {
3497         if (atomic_read(&sp->ref_count) == 0) {
3498                 DEBUG2(qla_printk(KERN_WARNING, ha,
3499                     "SP reference-count to ZERO -- sp=%p\n", sp));
3500                 DEBUG2(BUG());
3501                 return;
3502         }
3503         if (!atomic_dec_and_test(&sp->ref_count))
3504                 return;
3505         qla2x00_sp_final_compl(ha, sp);
3506 }
3507
3508 /**************************************************************************
3509 *   qla2x00_timer
3510 *
3511 * Description:
3512 *   One second timer
3513 *
3514 * Context: Interrupt
3515 ***************************************************************************/
3516 void
3517 qla2x00_timer(scsi_qla_host_t *vha)
3518 {
3519         unsigned long   cpu_flags = 0;
3520         fc_port_t       *fcport;
3521         int             start_dpc = 0;
3522         int             index;
3523         srb_t           *sp;
3524         int             t;
3525         uint16_t        w;
3526         struct qla_hw_data *ha = vha->hw;
3527         struct req_que *req;
3528
3529         if (ha->flags.eeh_busy) {
3530                 qla2x00_restart_timer(vha, WATCH_INTERVAL);
3531                 return;
3532         }
3533
3534         if (IS_QLA82XX(ha))
3535                 qla82xx_watchdog(vha);
3536
3537         /* Hardware read to raise pending EEH errors during mailbox waits. */
3538         if (!pci_channel_offline(ha->pdev))
3539                 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
3540         /*
3541          * Ports - Port down timer.
3542          *
3543          * Whenever, a port is in the LOST state we start decrementing its port
3544          * down timer every second until it reaches zero. Once  it reaches zero
3545          * the port it marked DEAD.
3546          */
3547         t = 0;
3548         list_for_each_entry(fcport, &vha->vp_fcports, list) {
3549                 if (fcport->port_type != FCT_TARGET)
3550                         continue;
3551
3552                 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
3553
3554                         if (atomic_read(&fcport->port_down_timer) == 0)
3555                                 continue;
3556
3557                         if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
3558                                 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
3559
3560                         DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
3561                             "%d remaining\n",
3562                             vha->host_no,
3563                             t, atomic_read(&fcport->port_down_timer)));
3564                 }
3565                 t++;
3566         } /* End of for fcport  */
3567
3568
3569         /* Loop down handler. */
3570         if (atomic_read(&vha->loop_down_timer) > 0 &&
3571             !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
3572                 && vha->flags.online) {
3573
3574                 if (atomic_read(&vha->loop_down_timer) ==
3575                     vha->loop_down_abort_time) {
3576
3577                         DEBUG(printk("scsi(%ld): Loop Down - aborting the "
3578                             "queues before time expire\n",
3579                             vha->host_no));
3580
3581                         if (!IS_QLA2100(ha) && vha->link_down_timeout)
3582                                 atomic_set(&vha->loop_state, LOOP_DEAD);
3583
3584                         /*
3585                          * Schedule an ISP abort to return any FCP2-device
3586                          * commands.
3587                          */
3588                         /* NPIV - scan physical port only */
3589                         if (!vha->vp_idx) {
3590                                 spin_lock_irqsave(&ha->hardware_lock,
3591                                     cpu_flags);
3592                                 req = ha->req_q_map[0];
3593                                 for (index = 1;
3594                                     index < MAX_OUTSTANDING_COMMANDS;
3595                                     index++) {
3596                                         fc_port_t *sfcp;
3597
3598                                         sp = req->outstanding_cmds[index];
3599                                         if (!sp)
3600                                                 continue;
3601                                         if (sp->ctx && !IS_PROT_IO(sp))
3602                                                 continue;
3603                                         sfcp = sp->fcport;
3604                                         if (!(sfcp->flags & FCF_FCP2_DEVICE))
3605                                                 continue;
3606
3607                                         set_bit(ISP_ABORT_NEEDED,
3608                                                         &vha->dpc_flags);
3609                                         break;
3610                                 }
3611                                 spin_unlock_irqrestore(&ha->hardware_lock,
3612                                                                 cpu_flags);
3613                         }
3614                         start_dpc++;
3615                 }
3616
3617                 /* if the loop has been down for 4 minutes, reinit adapter */
3618                 if (atomic_dec_and_test(&vha->loop_down_timer) != 0) {
3619                         if (!(vha->device_flags & DFLG_NO_CABLE)) {
3620                                 DEBUG(printk("scsi(%ld): Loop down - "
3621                                     "aborting ISP.\n",
3622                                     vha->host_no));
3623                                 qla_printk(KERN_WARNING, ha,
3624                                     "Loop down - aborting ISP.\n");
3625
3626                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3627                         }
3628                 }
3629                 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
3630                     vha->host_no,
3631                     atomic_read(&vha->loop_down_timer)));
3632         }
3633
3634         /* Check if beacon LED needs to be blinked */
3635         if (ha->beacon_blink_led == 1) {
3636                 set_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags);
3637                 start_dpc++;
3638         }
3639
3640         /* Process any deferred work. */
3641         if (!list_empty(&vha->work_list))
3642                 start_dpc++;
3643
3644         /* Schedule the DPC routine if needed */
3645         if ((test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
3646             test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) ||
3647             test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags) ||
3648             start_dpc ||
3649             test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) ||
3650             test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags) ||
3651             test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags) ||
3652             test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) ||
3653             test_bit(VP_DPC_NEEDED, &vha->dpc_flags) ||
3654             test_bit(RELOGIN_NEEDED, &vha->dpc_flags)))
3655                 qla2xxx_wake_dpc(vha);
3656
3657         qla2x00_restart_timer(vha, WATCH_INTERVAL);
3658 }
3659
3660 /* Firmware interface routines. */
3661
3662 #define FW_BLOBS        8
3663 #define FW_ISP21XX      0
3664 #define FW_ISP22XX      1
3665 #define FW_ISP2300      2
3666 #define FW_ISP2322      3
3667 #define FW_ISP24XX      4
3668 #define FW_ISP25XX      5
3669 #define FW_ISP81XX      6
3670 #define FW_ISP82XX      7
3671
3672 #define FW_FILE_ISP21XX "ql2100_fw.bin"
3673 #define FW_FILE_ISP22XX "ql2200_fw.bin"
3674 #define FW_FILE_ISP2300 "ql2300_fw.bin"
3675 #define FW_FILE_ISP2322 "ql2322_fw.bin"
3676 #define FW_FILE_ISP24XX "ql2400_fw.bin"
3677 #define FW_FILE_ISP25XX "ql2500_fw.bin"
3678 #define FW_FILE_ISP81XX "ql8100_fw.bin"
3679 #define FW_FILE_ISP82XX "ql8200_fw.bin"
3680
3681 static DEFINE_MUTEX(qla_fw_lock);
3682
3683 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
3684         { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
3685         { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
3686         { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
3687         { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
3688         { .name = FW_FILE_ISP24XX, },
3689         { .name = FW_FILE_ISP25XX, },
3690         { .name = FW_FILE_ISP81XX, },
3691         { .name = FW_FILE_ISP82XX, },
3692 };
3693
3694 struct fw_blob *
3695 qla2x00_request_firmware(scsi_qla_host_t *vha)
3696 {
3697         struct qla_hw_data *ha = vha->hw;
3698         struct fw_blob *blob;
3699
3700         blob = NULL;
3701         if (IS_QLA2100(ha)) {
3702                 blob = &qla_fw_blobs[FW_ISP21XX];
3703         } else if (IS_QLA2200(ha)) {
3704                 blob = &qla_fw_blobs[FW_ISP22XX];
3705         } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
3706                 blob = &qla_fw_blobs[FW_ISP2300];
3707         } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
3708                 blob = &qla_fw_blobs[FW_ISP2322];
3709         } else if (IS_QLA24XX_TYPE(ha)) {
3710                 blob = &qla_fw_blobs[FW_ISP24XX];
3711         } else if (IS_QLA25XX(ha)) {
3712                 blob = &qla_fw_blobs[FW_ISP25XX];
3713         } else if (IS_QLA81XX(ha)) {
3714                 blob = &qla_fw_blobs[FW_ISP81XX];
3715         } else if (IS_QLA82XX(ha)) {
3716                 blob = &qla_fw_blobs[FW_ISP82XX];
3717         }
3718
3719         mutex_lock(&qla_fw_lock);
3720         if (blob->fw)
3721                 goto out;
3722
3723         if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
3724                 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
3725                     "(%s).\n", vha->host_no, blob->name));
3726                 blob->fw = NULL;
3727                 blob = NULL;
3728                 goto out;
3729         }
3730
3731 out:
3732         mutex_unlock(&qla_fw_lock);
3733         return blob;
3734 }
3735
3736 static void
3737 qla2x00_release_firmware(void)
3738 {
3739         int idx;
3740
3741         mutex_lock(&qla_fw_lock);
3742         for (idx = 0; idx < FW_BLOBS; idx++)
3743                 if (qla_fw_blobs[idx].fw)
3744                         release_firmware(qla_fw_blobs[idx].fw);
3745         mutex_unlock(&qla_fw_lock);
3746 }
3747
3748 static pci_ers_result_t
3749 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
3750 {
3751         scsi_qla_host_t *vha = pci_get_drvdata(pdev);
3752         struct qla_hw_data *ha = vha->hw;
3753
3754         DEBUG2(qla_printk(KERN_WARNING, ha, "error_detected:state %x\n",
3755             state));
3756
3757         switch (state) {
3758         case pci_channel_io_normal:
3759                 ha->flags.eeh_busy = 0;
3760                 return PCI_ERS_RESULT_CAN_RECOVER;
3761         case pci_channel_io_frozen:
3762                 ha->flags.eeh_busy = 1;
3763                 /* For ISP82XX complete any pending mailbox cmd */
3764                 if (IS_QLA82XX(ha)) {
3765                         ha->flags.fw_hung = 1;
3766                         if (ha->flags.mbox_busy) {
3767                                 ha->flags.mbox_int = 1;
3768                                 DEBUG2(qla_printk(KERN_ERR, ha,
3769                                         "Due to pci channel io frozen, doing premature "
3770                                         "completion of mbx command\n"));
3771                                 complete(&ha->mbx_intr_comp);
3772                         }
3773                 }
3774                 qla2x00_free_irqs(vha);
3775                 pci_disable_device(pdev);
3776                 return PCI_ERS_RESULT_NEED_RESET;
3777         case pci_channel_io_perm_failure:
3778                 ha->flags.pci_channel_io_perm_failure = 1;
3779                 qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
3780                 return PCI_ERS_RESULT_DISCONNECT;
3781         }
3782         return PCI_ERS_RESULT_NEED_RESET;
3783 }
3784
3785 static pci_ers_result_t
3786 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
3787 {
3788         int risc_paused = 0;
3789         uint32_t stat;
3790         unsigned long flags;
3791         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3792         struct qla_hw_data *ha = base_vha->hw;
3793         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3794         struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
3795
3796         spin_lock_irqsave(&ha->hardware_lock, flags);
3797         if (IS_QLA2100(ha) || IS_QLA2200(ha)){
3798                 stat = RD_REG_DWORD(&reg->hccr);
3799                 if (stat & HCCR_RISC_PAUSE)
3800                         risc_paused = 1;
3801         } else if (IS_QLA23XX(ha)) {
3802                 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
3803                 if (stat & HSR_RISC_PAUSED)
3804                         risc_paused = 1;
3805         } else if (IS_FWI2_CAPABLE(ha)) {
3806                 stat = RD_REG_DWORD(&reg24->host_status);
3807                 if (stat & HSRX_RISC_PAUSED)
3808                         risc_paused = 1;
3809         }
3810         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3811
3812         if (risc_paused) {
3813                 qla_printk(KERN_INFO, ha, "RISC paused -- mmio_enabled, "
3814                     "Dumping firmware!\n");
3815                 ha->isp_ops->fw_dump(base_vha, 0);
3816
3817                 return PCI_ERS_RESULT_NEED_RESET;
3818         } else
3819                 return PCI_ERS_RESULT_RECOVERED;
3820 }
3821
3822 uint32_t qla82xx_error_recovery(scsi_qla_host_t *base_vha)
3823 {
3824         uint32_t rval = QLA_FUNCTION_FAILED;
3825         uint32_t drv_active = 0;
3826         struct qla_hw_data *ha = base_vha->hw;
3827         int fn;
3828         struct pci_dev *other_pdev = NULL;
3829
3830         DEBUG17(qla_printk(KERN_INFO, ha,
3831             "scsi(%ld): In qla82xx_error_recovery\n", base_vha->host_no));
3832
3833         set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
3834
3835         if (base_vha->flags.online) {
3836                 /* Abort all outstanding commands,
3837                  * so as to be requeued later */
3838                 qla2x00_abort_isp_cleanup(base_vha);
3839         }
3840
3841
3842         fn = PCI_FUNC(ha->pdev->devfn);
3843         while (fn > 0) {
3844                 fn--;
3845                 DEBUG17(qla_printk(KERN_INFO, ha,
3846                     "Finding pci device at function = 0x%x\n", fn));
3847                 other_pdev =
3848                     pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus),
3849                     ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
3850                     fn));
3851
3852                 if (!other_pdev)
3853                         continue;
3854                 if (atomic_read(&other_pdev->enable_cnt)) {
3855                         DEBUG17(qla_printk(KERN_INFO, ha,
3856                             "Found PCI func availabe and enabled at 0x%x\n",
3857                             fn));
3858                         pci_dev_put(other_pdev);
3859                         break;
3860                 }
3861                 pci_dev_put(other_pdev);
3862         }
3863
3864         if (!fn) {
3865                 /* Reset owner */
3866                 DEBUG17(qla_printk(KERN_INFO, ha,
3867                     "This devfn is reset owner = 0x%x\n", ha->pdev->devfn));
3868                 qla82xx_idc_lock(ha);
3869
3870                 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3871                     QLA82XX_DEV_INITIALIZING);
3872
3873                 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION,
3874                     QLA82XX_IDC_VERSION);
3875
3876                 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3877                 DEBUG17(qla_printk(KERN_INFO, ha,
3878                     "drv_active = 0x%x\n", drv_active));
3879
3880                 qla82xx_idc_unlock(ha);
3881                 /* Reset if device is not already reset
3882                  * drv_active would be 0 if a reset has already been done
3883                  */
3884                 if (drv_active)
3885                         rval = qla82xx_start_firmware(base_vha);
3886                 else
3887                         rval = QLA_SUCCESS;
3888                 qla82xx_idc_lock(ha);
3889
3890                 if (rval != QLA_SUCCESS) {
3891                         qla_printk(KERN_INFO, ha, "HW State: FAILED\n");
3892                         qla82xx_clear_drv_active(ha);
3893                         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3894                             QLA82XX_DEV_FAILED);
3895                 } else {
3896                         qla_printk(KERN_INFO, ha, "HW State: READY\n");
3897                         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3898                             QLA82XX_DEV_READY);
3899                         qla82xx_idc_unlock(ha);
3900                         ha->flags.fw_hung = 0;
3901                         rval = qla82xx_restart_isp(base_vha);
3902                         qla82xx_idc_lock(ha);
3903                         /* Clear driver state register */
3904                         qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, 0);
3905                         qla82xx_set_drv_active(base_vha);
3906                 }
3907                 qla82xx_idc_unlock(ha);
3908         } else {
3909                 DEBUG17(qla_printk(KERN_INFO, ha,
3910                     "This devfn is not reset owner = 0x%x\n", ha->pdev->devfn));
3911                 if ((qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE) ==
3912                     QLA82XX_DEV_READY)) {
3913                         ha->flags.fw_hung = 0;
3914                         rval = qla82xx_restart_isp(base_vha);
3915                         qla82xx_idc_lock(ha);
3916                         qla82xx_set_drv_active(base_vha);
3917                         qla82xx_idc_unlock(ha);
3918                 }
3919         }
3920         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
3921
3922         return rval;
3923 }
3924
3925 static pci_ers_result_t
3926 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
3927 {
3928         pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
3929         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3930         struct qla_hw_data *ha = base_vha->hw;
3931         struct rsp_que *rsp;
3932         int rc, retries = 10;
3933
3934         DEBUG17(qla_printk(KERN_WARNING, ha, "slot_reset\n"));
3935
3936         /* Workaround: qla2xxx driver which access hardware earlier
3937          * needs error state to be pci_channel_io_online.
3938          * Otherwise mailbox command timesout.
3939          */
3940         pdev->error_state = pci_channel_io_normal;
3941
3942         pci_restore_state(pdev);
3943
3944         /* pci_restore_state() clears the saved_state flag of the device
3945          * save restored state which resets saved_state flag
3946          */
3947         pci_save_state(pdev);
3948
3949         if (ha->mem_only)
3950                 rc = pci_enable_device_mem(pdev);
3951         else
3952                 rc = pci_enable_device(pdev);
3953
3954         if (rc) {
3955                 qla_printk(KERN_WARNING, ha,
3956                     "Can't re-enable PCI device after reset.\n");
3957                 goto exit_slot_reset;
3958         }
3959
3960         rsp = ha->rsp_q_map[0];
3961         if (qla2x00_request_irqs(ha, rsp))
3962                 goto exit_slot_reset;
3963
3964         if (ha->isp_ops->pci_config(base_vha))
3965                 goto exit_slot_reset;
3966
3967         if (IS_QLA82XX(ha)) {
3968                 if (qla82xx_error_recovery(base_vha) == QLA_SUCCESS) {
3969                         ret = PCI_ERS_RESULT_RECOVERED;
3970                         goto exit_slot_reset;
3971                 } else
3972                         goto exit_slot_reset;
3973         }
3974
3975         while (ha->flags.mbox_busy && retries--)
3976                 msleep(1000);
3977
3978         set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
3979         if (ha->isp_ops->abort_isp(base_vha) == QLA_SUCCESS)
3980                 ret =  PCI_ERS_RESULT_RECOVERED;
3981         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
3982
3983
3984 exit_slot_reset:
3985         DEBUG17(qla_printk(KERN_WARNING, ha,
3986             "slot_reset-return:ret=%x\n", ret));
3987
3988         return ret;
3989 }
3990
3991 static void
3992 qla2xxx_pci_resume(struct pci_dev *pdev)
3993 {
3994         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3995         struct qla_hw_data *ha = base_vha->hw;
3996         int ret;
3997
3998         DEBUG17(qla_printk(KERN_WARNING, ha, "pci_resume\n"));
3999
4000         ret = qla2x00_wait_for_hba_online(base_vha);
4001         if (ret != QLA_SUCCESS) {
4002                 qla_printk(KERN_ERR, ha,
4003                     "the device failed to resume I/O "
4004                     "from slot/link_reset");
4005         }
4006
4007         pci_cleanup_aer_uncorrect_error_status(pdev);
4008
4009         ha->flags.eeh_busy = 0;
4010 }
4011
4012 static struct pci_error_handlers qla2xxx_err_handler = {
4013         .error_detected = qla2xxx_pci_error_detected,
4014         .mmio_enabled = qla2xxx_pci_mmio_enabled,
4015         .slot_reset = qla2xxx_pci_slot_reset,
4016         .resume = qla2xxx_pci_resume,
4017 };
4018
4019 static struct pci_device_id qla2xxx_pci_tbl[] = {
4020         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
4021         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
4022         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
4023         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
4024         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
4025         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
4026         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
4027         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
4028         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
4029         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) },
4030         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
4031         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
4032         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
4033         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8001) },
4034         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8021) },
4035         { 0 },
4036 };
4037 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
4038
4039 static struct pci_driver qla2xxx_pci_driver = {
4040         .name           = QLA2XXX_DRIVER_NAME,
4041         .driver         = {
4042                 .owner          = THIS_MODULE,
4043         },
4044         .id_table       = qla2xxx_pci_tbl,
4045         .probe          = qla2x00_probe_one,
4046         .remove         = qla2x00_remove_one,
4047         .err_handler    = &qla2xxx_err_handler,
4048 };
4049
4050 static struct file_operations apidev_fops = {
4051         .owner = THIS_MODULE,
4052 };
4053
4054 /**
4055  * qla2x00_module_init - Module initialization.
4056  **/
4057 static int __init
4058 qla2x00_module_init(void)
4059 {
4060         int ret = 0;
4061
4062         /* Allocate cache for SRBs. */
4063         srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
4064             SLAB_HWCACHE_ALIGN, NULL);
4065         if (srb_cachep == NULL) {
4066                 printk(KERN_ERR
4067                     "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
4068                 return -ENOMEM;
4069         }
4070
4071         /* Derive version string. */
4072         strcpy(qla2x00_version_str, QLA2XXX_VERSION);
4073         if (ql2xextended_error_logging)
4074                 strcat(qla2x00_version_str, "-debug");
4075
4076         qla2xxx_transport_template =
4077             fc_attach_transport(&qla2xxx_transport_functions);
4078         if (!qla2xxx_transport_template) {
4079                 kmem_cache_destroy(srb_cachep);
4080                 return -ENODEV;
4081         }
4082
4083         apidev_major = register_chrdev(0, QLA2XXX_APIDEV, &apidev_fops);
4084         if (apidev_major < 0) {
4085                 printk(KERN_WARNING "qla2xxx: Unable to register char device "
4086                     "%s\n", QLA2XXX_APIDEV);
4087         }
4088
4089         qla2xxx_transport_vport_template =
4090             fc_attach_transport(&qla2xxx_transport_vport_functions);
4091         if (!qla2xxx_transport_vport_template) {
4092                 kmem_cache_destroy(srb_cachep);
4093                 fc_release_transport(qla2xxx_transport_template);
4094                 return -ENODEV;
4095         }
4096
4097         printk(KERN_INFO "QLogic Fibre Channel HBA Driver: %s\n",
4098             qla2x00_version_str);
4099         ret = pci_register_driver(&qla2xxx_pci_driver);
4100         if (ret) {
4101                 kmem_cache_destroy(srb_cachep);
4102                 fc_release_transport(qla2xxx_transport_template);
4103                 fc_release_transport(qla2xxx_transport_vport_template);
4104         }
4105         return ret;
4106 }
4107
4108 /**
4109  * qla2x00_module_exit - Module cleanup.
4110  **/
4111 static void __exit
4112 qla2x00_module_exit(void)
4113 {
4114         unregister_chrdev(apidev_major, QLA2XXX_APIDEV);
4115         pci_unregister_driver(&qla2xxx_pci_driver);
4116         qla2x00_release_firmware();
4117         kmem_cache_destroy(srb_cachep);
4118         if (ctx_cachep)
4119                 kmem_cache_destroy(ctx_cachep);
4120         fc_release_transport(qla2xxx_transport_template);
4121         fc_release_transport(qla2xxx_transport_vport_template);
4122 }
4123
4124 module_init(qla2x00_module_init);
4125 module_exit(qla2x00_module_exit);
4126
4127 MODULE_AUTHOR("QLogic Corporation");
4128 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
4129 MODULE_LICENSE("GPL");
4130 MODULE_VERSION(QLA2XXX_VERSION);
4131 MODULE_FIRMWARE(FW_FILE_ISP21XX);
4132 MODULE_FIRMWARE(FW_FILE_ISP22XX);
4133 MODULE_FIRMWARE(FW_FILE_ISP2300);
4134 MODULE_FIRMWARE(FW_FILE_ISP2322);
4135 MODULE_FIRMWARE(FW_FILE_ISP24XX);
4136 MODULE_FIRMWARE(FW_FILE_ISP25XX);