drivers/scsi/qla2xxx/qla_os.c

   1 /*
   2  * QLogic Fibre Channel HBA Driver
   3  * Copyright (c)  2003-2010 QLogic Corporation
   4  *
   5  * See LICENSE.qla2xxx for copyright and licensing details.
   6  */
   7 #include "qla_def.h"
   8
   9 #include <linux/moduleparam.h>
  10 #include <linux/vmalloc.h>
  11 #include <linux/delay.h>
  12 #include <linux/kthread.h>
  13 #include <linux/mutex.h>
  14 #include <linux/kobject.h>
  15 #include <linux/slab.h>
  16
  17 #include <scsi/scsi_tcq.h>
  18 #include <scsi/scsicam.h>
  19 #include <scsi/scsi_transport.h>
  20 #include <scsi/scsi_transport_fc.h>
  21
  22 /*
  23  * Driver version
  24  */
  25 char qla2x00_version_str[40];
  26
  27 static int apidev_major;
  28
  29 /*
  30  * SRB allocation cache
  31  */
  32 static struct kmem_cache *srb_cachep;
  33
  34 /*
  35  * CT6 CTX allocation cache
  36  */
  37 static struct kmem_cache *ctx_cachep;
  38
  39 int ql2xlogintimeout = 20;
  40 module_param(ql2xlogintimeout, int, S_IRUGO);
  41 MODULE_PARM_DESC(ql2xlogintimeout,
  42                 "Login timeout value in seconds.");
  43
  44 int qlport_down_retry;
  45 module_param(qlport_down_retry, int, S_IRUGO);
  46 MODULE_PARM_DESC(qlport_down_retry,
  47                 "Maximum number of command retries to a port that returns "
  48                 "a PORT-DOWN status.");
  49
  50 int ql2xplogiabsentdevice;
  51 module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
  52 MODULE_PARM_DESC(ql2xplogiabsentdevice,
  53                 "Option to enable PLOGI to devices that are not present after "
  54                 "a Fabric scan.  This is needed for several broken switches. "
  55                 "Default is 0 - no PLOGI. 1 - perfom PLOGI.");
  56
  57 int ql2xloginretrycount = 0;
  58 module_param(ql2xloginretrycount, int, S_IRUGO);
  59 MODULE_PARM_DESC(ql2xloginretrycount,
  60                 "Specify an alternate value for the NVRAM login retry count.");
  61
  62 int ql2xallocfwdump = 1;
  63 module_param(ql2xallocfwdump, int, S_IRUGO);
  64 MODULE_PARM_DESC(ql2xallocfwdump,
  65                 "Option to enable allocation of memory for a firmware dump "
  66                 "during HBA initialization.  Memory allocation requirements "
  67                 "vary by ISP type.  Default is 1 - allocate memory.");
  68
  69 int ql2xextended_error_logging;
  70 module_param(ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
  71 MODULE_PARM_DESC(ql2xextended_error_logging,
  72                 "Option to enable extended error logging, "
  73                 "Default is 0 - no logging. 1 - log errors.");
  74
  75 int ql2xshiftctondsd = 6;
  76 module_param(ql2xshiftctondsd, int, S_IRUGO);
  77 MODULE_PARM_DESC(ql2xshiftctondsd,
  78                 "Set to control shifting of command type processing "
  79                 "based on total number of SG elements.");
  80
  81 static void qla2x00_free_device(scsi_qla_host_t *);
  82
  83 int ql2xfdmienable=1;
  84 module_param(ql2xfdmienable, int, S_IRUGO);
  85 MODULE_PARM_DESC(ql2xfdmienable,
  86                 "Enables FDMI registrations. "
  87                 "0 - no FDMI. Default is 1 - perform FDMI.");
  88
  89 #define MAX_Q_DEPTH    32
  90 static int ql2xmaxqdepth = MAX_Q_DEPTH;
  91 module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
  92 MODULE_PARM_DESC(ql2xmaxqdepth,
  93                 "Maximum queue depth to report for target devices.");
  94
  95 /* Do not change the value of this after module load */
  96 int ql2xenabledif = 1;
  97 module_param(ql2xenabledif, int, S_IRUGO|S_IWUSR);
  98 MODULE_PARM_DESC(ql2xenabledif,
  99                 " Enable T10-CRC-DIF "
 100                 " Default is 0 - No DIF Support. 1 - Enable it");
 101
 102 int ql2xenablehba_err_chk;
 103 module_param(ql2xenablehba_err_chk, int, S_IRUGO|S_IWUSR);
 104 MODULE_PARM_DESC(ql2xenablehba_err_chk,
 105                 " Enable T10-CRC-DIF Error isolation by HBA"
 106                 " Default is 0 - Error isolation disabled, 1 - Enable it");
 107
 108 int ql2xiidmaenable=1;
 109 module_param(ql2xiidmaenable, int, S_IRUGO);
 110 MODULE_PARM_DESC(ql2xiidmaenable,
 111                 "Enables iIDMA settings "
 112                 "Default is 1 - perform iIDMA. 0 - no iIDMA.");
 113
 114 int ql2xmaxqueues = 1;
 115 module_param(ql2xmaxqueues, int, S_IRUGO);
 116 MODULE_PARM_DESC(ql2xmaxqueues,
 117                 "Enables MQ settings "
 118                 "Default is 1 for single queue. Set it to number "
 119                 "of queues in MQ mode.");
 120
 121 int ql2xmultique_tag;
 122 module_param(ql2xmultique_tag, int, S_IRUGO);
 123 MODULE_PARM_DESC(ql2xmultique_tag,
 124                 "Enables CPU affinity settings for the driver "
 125                 "Default is 0 for no affinity of request and response IO. "
 126                 "Set it to 1 to turn on the cpu affinity.");
 127
 128 int ql2xfwloadbin;
 129 module_param(ql2xfwloadbin, int, S_IRUGO);
 130 MODULE_PARM_DESC(ql2xfwloadbin,
 131                 "Option to specify location from which to load ISP firmware:\n"
 132                 " 2 -- load firmware via the request_firmware() (hotplug)\n"
 133                 "      interface.\n"
 134                 " 1 -- load firmware from flash.\n"
 135                 " 0 -- use default semantics.\n");
 136
 137 int ql2xetsenable;
 138 module_param(ql2xetsenable, int, S_IRUGO);
 139 MODULE_PARM_DESC(ql2xetsenable,
 140                 "Enables firmware ETS burst."
 141                 "Default is 0 - skip ETS enablement.");
 142
 143 int ql2xdbwr = 1;
 144 module_param(ql2xdbwr, int, S_IRUGO);
 145 MODULE_PARM_DESC(ql2xdbwr,
 146         "Option to specify scheme for request queue posting\n"
 147         " 0 -- Regular doorbell.\n"
 148         " 1 -- CAMRAM doorbell (faster).\n");
 149
 150 int ql2xtargetreset = 1;
 151 module_param(ql2xtargetreset, int, S_IRUGO);
 152 MODULE_PARM_DESC(ql2xtargetreset,
 153                  "Enable target reset."
 154                  "Default is 1 - use hw defaults.");
 155
 156 int ql2xgffidenable;
 157 module_param(ql2xgffidenable, int, S_IRUGO);
 158 MODULE_PARM_DESC(ql2xgffidenable,
 159                 "Enables GFF_ID checks of port type. "
 160                 "Default is 0 - Do not use GFF_ID information.");
 161
 162 int ql2xasynctmfenable;
 163 module_param(ql2xasynctmfenable, int, S_IRUGO);
 164 MODULE_PARM_DESC(ql2xasynctmfenable,
 165                 "Enables issue of TM IOCBs asynchronously via IOCB mechanism"
 166                 "Default is 0 - Issue TM IOCBs via mailbox mechanism.");
 167 /*
 168  * SCSI host template entry points
 169  */
 170 static int qla2xxx_slave_configure(struct scsi_device * device);
 171 static int qla2xxx_slave_alloc(struct scsi_device *);
 172 static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
 173 static void qla2xxx_scan_start(struct Scsi_Host *);
 174 static void qla2xxx_slave_destroy(struct scsi_device *);
 175 static int qla2xxx_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmd);
 176 static int qla2xxx_eh_abort(struct scsi_cmnd *);
 177 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
 178 static int qla2xxx_eh_target_reset(struct scsi_cmnd *);
 179 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
 180 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
 181
 182 static int qla2x00_change_queue_depth(struct scsi_device *, int, int);
 183 static int qla2x00_change_queue_type(struct scsi_device *, int);
 184
 185 struct scsi_host_template qla2xxx_driver_template = {
 186         .module                 = THIS_MODULE,
 187         .name                   = QLA2XXX_DRIVER_NAME,
 188         .queuecommand           = qla2xxx_queuecommand,
 189
 190         .eh_abort_handler       = qla2xxx_eh_abort,
 191         .eh_device_reset_handler = qla2xxx_eh_device_reset,
 192         .eh_target_reset_handler = qla2xxx_eh_target_reset,
 193         .eh_bus_reset_handler   = qla2xxx_eh_bus_reset,
 194         .eh_host_reset_handler  = qla2xxx_eh_host_reset,
 195
 196         .slave_configure        = qla2xxx_slave_configure,
 197
 198         .slave_alloc            = qla2xxx_slave_alloc,
 199         .slave_destroy          = qla2xxx_slave_destroy,
 200         .scan_finished          = qla2xxx_scan_finished,
 201         .scan_start             = qla2xxx_scan_start,
 202         .change_queue_depth     = qla2x00_change_queue_depth,
 203         .change_queue_type      = qla2x00_change_queue_type,
 204         .this_id                = -1,
 205         .cmd_per_lun            = 3,
 206         .use_clustering         = ENABLE_CLUSTERING,
 207         .sg_tablesize           = SG_ALL,
 208
 209         .max_sectors            = 0xFFFF,
 210         .shost_attrs            = qla2x00_host_attrs,
 211 };
 212
 213 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
 214 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
 215
 216 /* TODO Convert to inlines
 217  *
 218  * Timer routines
 219  */
 220
 221 __inline__ void
 222 qla2x00_start_timer(scsi_qla_host_t *vha, void *func, unsigned long interval)
 223 {
 224         init_timer(&vha->timer);
 225         vha->timer.expires = jiffies + interval * HZ;
 226         vha->timer.data = (unsigned long)vha;
 227         vha->timer.function = (void (*)(unsigned long))func;
 228         add_timer(&vha->timer);
 229         vha->timer_active = 1;
 230 }
 231
 232 static inline void
 233 qla2x00_restart_timer(scsi_qla_host_t *vha, unsigned long interval)
 234 {
 235         /* Currently used for 82XX only. */
 236         if (vha->device_flags & DFLG_DEV_FAILED)
 237                 return;
 238
 239         mod_timer(&vha->timer, jiffies + interval * HZ);
 240 }
 241
 242 static __inline__ void
 243 qla2x00_stop_timer(scsi_qla_host_t *vha)
 244 {
 245         del_timer_sync(&vha->timer);
 246         vha->timer_active = 0;
 247 }
 248
 249 static int qla2x00_do_dpc(void *data);
 250
 251 static void qla2x00_rst_aen(scsi_qla_host_t *);
 252
 253 static int qla2x00_mem_alloc(struct qla_hw_data *, uint16_t, uint16_t,
 254         struct req_que **, struct rsp_que **);
 255 static void qla2x00_free_fw_dump(struct qla_hw_data *);
 256 static void qla2x00_mem_free(struct qla_hw_data *);
 257 static void qla2x00_sp_free_dma(srb_t *);
 258
 259 /* -------------------------------------------------------------------------- */
 260 static int qla2x00_alloc_queues(struct qla_hw_data *ha)
 261 {
 262         ha->req_q_map = kzalloc(sizeof(struct req_que *) * ha->max_req_queues,
 263                                 GFP_KERNEL);
 264         if (!ha->req_q_map) {
 265                 qla_printk(KERN_WARNING, ha,
 266                         "Unable to allocate memory for request queue ptrs\n");
 267                 goto fail_req_map;
 268         }
 269
 270         ha->rsp_q_map = kzalloc(sizeof(struct rsp_que *) * ha->max_rsp_queues,
 271                                 GFP_KERNEL);
 272         if (!ha->rsp_q_map) {
 273                 qla_printk(KERN_WARNING, ha,
 274                         "Unable to allocate memory for response queue ptrs\n");
 275                 goto fail_rsp_map;
 276         }
 277         set_bit(0, ha->rsp_qid_map);
 278         set_bit(0, ha->req_qid_map);
 279         return 1;
 280
 281 fail_rsp_map:
 282         kfree(ha->req_q_map);
 283         ha->req_q_map = NULL;
 284 fail_req_map:
 285         return -ENOMEM;
 286 }
 287
 288 static void qla2x00_free_req_que(struct qla_hw_data *ha, struct req_que *req)
 289 {
 290         if (req && req->ring)
 291                 dma_free_coherent(&ha->pdev->dev,
 292                 (req->length + 1) * sizeof(request_t),
 293                 req->ring, req->dma);
 294
 295         kfree(req);
 296         req = NULL;
 297 }
 298
 299 static void qla2x00_free_rsp_que(struct qla_hw_data *ha, struct rsp_que *rsp)
 300 {
 301         if (rsp && rsp->ring)
 302                 dma_free_coherent(&ha->pdev->dev,
 303                 (rsp->length + 1) * sizeof(response_t),
 304                 rsp->ring, rsp->dma);
 305
 306         kfree(rsp);
 307         rsp = NULL;
 308 }
 309
 310 static void qla2x00_free_queues(struct qla_hw_data *ha)
 311 {
 312         struct req_que *req;
 313         struct rsp_que *rsp;
 314         int cnt;
 315
 316         for (cnt = 0; cnt < ha->max_req_queues; cnt++) {
 317                 req = ha->req_q_map[cnt];
 318                 qla2x00_free_req_que(ha, req);
 319         }
 320         kfree(ha->req_q_map);
 321         ha->req_q_map = NULL;
 322
 323         for (cnt = 0; cnt < ha->max_rsp_queues; cnt++) {
 324                 rsp = ha->rsp_q_map[cnt];
 325                 qla2x00_free_rsp_que(ha, rsp);
 326         }
 327         kfree(ha->rsp_q_map);
 328         ha->rsp_q_map = NULL;
 329 }
 330
 331 static int qla25xx_setup_mode(struct scsi_qla_host *vha)
 332 {
 333         uint16_t options = 0;
 334         int ques, req, ret;
 335         struct qla_hw_data *ha = vha->hw;
 336
 337         if (!(ha->fw_attributes & BIT_6)) {
 338                 qla_printk(KERN_INFO, ha,
 339                         "Firmware is not multi-queue capable\n");
 340                 goto fail;
 341         }
 342         if (ql2xmultique_tag) {
 343                 /* create a request queue for IO */
 344                 options |= BIT_7;
 345                 req = qla25xx_create_req_que(ha, options, 0, 0, -1,
 346                         QLA_DEFAULT_QUE_QOS);
 347                 if (!req) {
 348                         qla_printk(KERN_WARNING, ha,
 349                                 "Can't create request queue\n");
 350                         goto fail;
 351                 }
 352                 ha->wq = alloc_workqueue("qla2xxx_wq", WQ_MEM_RECLAIM, 1);
 353                 vha->req = ha->req_q_map[req];
 354                 options |= BIT_1;
 355                 for (ques = 1; ques < ha->max_rsp_queues; ques++) {
 356                         ret = qla25xx_create_rsp_que(ha, options, 0, 0, req);
 357                         if (!ret) {
 358                                 qla_printk(KERN_WARNING, ha,
 359                                         "Response Queue create failed\n");
 360                                 goto fail2;
 361                         }
 362                 }
 363                 ha->flags.cpu_affinity_enabled = 1;
 364
 365                 DEBUG2(qla_printk(KERN_INFO, ha,
 366                         "CPU affinity mode enabled, no. of response"
 367                         " queues:%d, no. of request queues:%d\n",
 368                         ha->max_rsp_queues, ha->max_req_queues));
 369         }
 370         return 0;
 371 fail2:
 372         qla25xx_delete_queues(vha);
 373         destroy_workqueue(ha->wq);
 374         ha->wq = NULL;
 375 fail:
 376         ha->mqenable = 0;
 377         kfree(ha->req_q_map);
 378         kfree(ha->rsp_q_map);
 379         ha->max_req_queues = ha->max_rsp_queues = 1;
 380         return 1;
 381 }
 382
 383 static char *
 384 qla2x00_pci_info_str(struct scsi_qla_host *vha, char *str)
 385 {
 386         struct qla_hw_data *ha = vha->hw;
 387         static char *pci_bus_modes[] = {
 388                 "33", "66", "100", "133",
 389         };
 390         uint16_t pci_bus;
 391
 392         strcpy(str, "PCI");
 393         pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
 394         if (pci_bus) {
 395                 strcat(str, "-X (");
 396                 strcat(str, pci_bus_modes[pci_bus]);
 397         } else {
 398                 pci_bus = (ha->pci_attr & BIT_8) >> 8;
 399                 strcat(str, " (");
 400                 strcat(str, pci_bus_modes[pci_bus]);
 401         }
 402         strcat(str, " MHz)");
 403
 404         return (str);
 405 }
 406
 407 static char *
 408 qla24xx_pci_info_str(struct scsi_qla_host *vha, char *str)
 409 {
 410         static char *pci_bus_modes[] = { "33", "66", "100", "133", };
 411         struct qla_hw_data *ha = vha->hw;
 412         uint32_t pci_bus;
 413         int pcie_reg;
 414
 415         pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
 416         if (pcie_reg) {
 417                 char lwstr[6];
 418                 uint16_t pcie_lstat, lspeed, lwidth;
 419
 420                 pcie_reg += 0x12;
 421                 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
 422                 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
 423                 lwidth = (pcie_lstat &
 424                     (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
 425
 426                 strcpy(str, "PCIe (");
 427                 if (lspeed == 1)
 428                         strcat(str, "2.5GT/s ");
 429                 else if (lspeed == 2)
 430                         strcat(str, "5.0GT/s ");
 431                 else
 432                         strcat(str, "<unknown> ");
 433                 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
 434                 strcat(str, lwstr);
 435
 436                 return str;
 437         }
 438
 439         strcpy(str, "PCI");
 440         pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
 441         if (pci_bus == 0 || pci_bus == 8) {
 442                 strcat(str, " (");
 443                 strcat(str, pci_bus_modes[pci_bus >> 3]);
 444         } else {
 445                 strcat(str, "-X ");
 446                 if (pci_bus & BIT_2)
 447                         strcat(str, "Mode 2");
 448                 else
 449                         strcat(str, "Mode 1");
 450                 strcat(str, " (");
 451                 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
 452         }
 453         strcat(str, " MHz)");
 454
 455         return str;
 456 }
 457
 458 static char *
 459 qla2x00_fw_version_str(struct scsi_qla_host *vha, char *str)
 460 {
 461         char un_str[10];
 462         struct qla_hw_data *ha = vha->hw;
 463
 464         sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
 465             ha->fw_minor_version,
 466             ha->fw_subminor_version);
 467
 468         if (ha->fw_attributes & BIT_9) {
 469                 strcat(str, "FLX");
 470                 return (str);
 471         }
 472
 473         switch (ha->fw_attributes & 0xFF) {
 474         case 0x7:
 475                 strcat(str, "EF");
 476                 break;
 477         case 0x17:
 478                 strcat(str, "TP");
 479                 break;
 480         case 0x37:
 481                 strcat(str, "IP");
 482                 break;
 483         case 0x77:
 484                 strcat(str, "VI");
 485                 break;
 486         default:
 487                 sprintf(un_str, "(%x)", ha->fw_attributes);
 488                 strcat(str, un_str);
 489                 break;
 490         }
 491         if (ha->fw_attributes & 0x100)
 492                 strcat(str, "X");
 493
 494         return (str);
 495 }
 496
 497 static char *
 498 qla24xx_fw_version_str(struct scsi_qla_host *vha, char *str)
 499 {
 500         struct qla_hw_data *ha = vha->hw;
 501
 502         sprintf(str, "%d.%02d.%02d (%x)", ha->fw_major_version,
 503             ha->fw_minor_version, ha->fw_subminor_version, ha->fw_attributes);
 504         return str;
 505 }
 506
 507 static inline srb_t *
 508 qla2x00_get_new_sp(scsi_qla_host_t *vha, fc_port_t *fcport,
 509         struct scsi_cmnd *cmd)
 510 {
 511         srb_t *sp;
 512         struct qla_hw_data *ha = vha->hw;
 513
 514         sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
 515         if (!sp)
 516                 return sp;
 517
 518         atomic_set(&sp->ref_count, 1);
 519         sp->fcport = fcport;
 520         sp->cmd = cmd;
 521         sp->flags = 0;
 522         CMD_SP(cmd) = (void *)sp;
 523         sp->ctx = NULL;
 524
 525         return sp;
 526 }
 527
 528 static int
 529 qla2xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
 530 {
 531         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 532         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 533         struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
 534         struct qla_hw_data *ha = vha->hw;
 535         struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
 536         srb_t *sp;
 537         int rval;
 538
 539         if (ha->flags.eeh_busy) {
 540                 if (ha->flags.pci_channel_io_perm_failure)
 541                         cmd->result = DID_NO_CONNECT << 16;
 542                 else
 543                         cmd->result = DID_REQUEUE << 16;
 544                 goto qc24_fail_command;
 545         }
 546
 547         rval = fc_remote_port_chkready(rport);
 548         if (rval) {
 549                 cmd->result = rval;
 550                 goto qc24_fail_command;
 551         }
 552
 553         if (!vha->flags.difdix_supported &&
 554                 scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) {
 555                         DEBUG2(qla_printk(KERN_ERR, ha,
 556                             "DIF Cap Not Reg, fail DIF capable cmd's:%x\n",
 557                             cmd->cmnd[0]));
 558                         cmd->result = DID_NO_CONNECT << 16;
 559                         goto qc24_fail_command;
 560         }
 561         if (atomic_read(&fcport->state) != FCS_ONLINE) {
 562                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
 563                         atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
 564                         cmd->result = DID_NO_CONNECT << 16;
 565                         goto qc24_fail_command;
 566                 }
 567                 goto qc24_target_busy;
 568         }
 569
 570         sp = qla2x00_get_new_sp(base_vha, fcport, cmd);
 571         if (!sp)
 572                 goto qc24_host_busy;
 573
 574         rval = ha->isp_ops->start_scsi(sp);
 575         if (rval != QLA_SUCCESS)
 576                 goto qc24_host_busy_free_sp;
 577
 578         return 0;
 579
 580 qc24_host_busy_free_sp:
 581         qla2x00_sp_free_dma(sp);
 582         mempool_free(sp, ha->srb_mempool);
 583
 584 qc24_host_busy:
 585         return SCSI_MLQUEUE_HOST_BUSY;
 586
 587 qc24_target_busy:
 588         return SCSI_MLQUEUE_TARGET_BUSY;
 589
 590 qc24_fail_command:
 591         cmd->scsi_done(cmd);
 592
 593         return 0;
 594 }
 595
 596 /*
 597  * qla2x00_eh_wait_on_command
 598  *    Waits for the command to be returned by the Firmware for some
 599  *    max time.
 600  *
 601  * Input:
 602  *    cmd = Scsi Command to wait on.
 603  *
 604  * Return:
 605  *    Not Found : 0
 606  *    Found : 1
 607  */
 608 static int
 609 qla2x00_eh_wait_on_command(struct scsi_cmnd *cmd)
 610 {
 611 #define ABORT_POLLING_PERIOD    1000
 612 #define ABORT_WAIT_ITER         ((10 * 1000) / (ABORT_POLLING_PERIOD))
 613         unsigned long wait_iter = ABORT_WAIT_ITER;
 614         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 615         struct qla_hw_data *ha = vha->hw;
 616         int ret = QLA_SUCCESS;
 617
 618         if (unlikely(pci_channel_offline(ha->pdev)) || ha->flags.eeh_busy) {
 619                 DEBUG17(qla_printk(KERN_WARNING, ha, "return:eh_wait\n"));
 620                 return ret;
 621         }
 622
 623         while (CMD_SP(cmd) && wait_iter--) {
 624                 msleep(ABORT_POLLING_PERIOD);
 625         }
 626         if (CMD_SP(cmd))
 627                 ret = QLA_FUNCTION_FAILED;
 628
 629         return ret;
 630 }
 631
 632 /*
 633  * qla2x00_wait_for_hba_online
 634  *    Wait till the HBA is online after going through
 635  *    <= MAX_RETRIES_OF_ISP_ABORT  or
 636  *    finally HBA is disabled ie marked offline
 637  *
 638  * Input:
 639  *     ha - pointer to host adapter structure
 640  *
 641  * Note:
 642  *    Does context switching-Release SPIN_LOCK
 643  *    (if any) before calling this routine.
 644  *
 645  * Return:
 646  *    Success (Adapter is online) : 0
 647  *    Failed  (Adapter is offline/disabled) : 1
 648  */
 649 int
 650 qla2x00_wait_for_hba_online(scsi_qla_host_t *vha)
 651 {
 652         int             return_status;
 653         unsigned long   wait_online;
 654         struct qla_hw_data *ha = vha->hw;
 655         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 656
 657         wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 658         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 659             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 660             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 661             ha->dpc_active) && time_before(jiffies, wait_online)) {
 662
 663                 msleep(1000);
 664         }
 665         if (base_vha->flags.online)
 666                 return_status = QLA_SUCCESS;
 667         else
 668                 return_status = QLA_FUNCTION_FAILED;
 669
 670         return (return_status);
 671 }
 672
 673 /*
 674  * qla2x00_wait_for_reset_ready
 675  *    Wait till the HBA is online after going through
 676  *    <= MAX_RETRIES_OF_ISP_ABORT  or
 677  *    finally HBA is disabled ie marked offline or flash
 678  *    operations are in progress.
 679  *
 680  * Input:
 681  *     ha - pointer to host adapter structure
 682  *
 683  * Note:
 684  *    Does context switching-Release SPIN_LOCK
 685  *    (if any) before calling this routine.
 686  *
 687  * Return:
 688  *    Success (Adapter is online/no flash ops) : 0
 689  *    Failed  (Adapter is offline/disabled/flash ops in progress) : 1
 690  */
 691 static int
 692 qla2x00_wait_for_reset_ready(scsi_qla_host_t *vha)
 693 {
 694         int             return_status;
 695         unsigned long   wait_online;
 696         struct qla_hw_data *ha = vha->hw;
 697         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 698
 699         wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 700         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 701             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 702             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 703             ha->optrom_state != QLA_SWAITING ||
 704             ha->dpc_active) && time_before(jiffies, wait_online))
 705                 msleep(1000);
 706
 707         if (base_vha->flags.online &&  ha->optrom_state == QLA_SWAITING)
 708                 return_status = QLA_SUCCESS;
 709         else
 710                 return_status = QLA_FUNCTION_FAILED;
 711
 712         DEBUG2(printk("%s return_status=%d\n", __func__, return_status));
 713
 714         return return_status;
 715 }
 716
 717 int
 718 qla2x00_wait_for_chip_reset(scsi_qla_host_t *vha)
 719 {
 720         int             return_status;
 721         unsigned long   wait_reset;
 722         struct qla_hw_data *ha = vha->hw;
 723         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 724
 725         wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 726         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 727             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 728             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 729             ha->dpc_active) && time_before(jiffies, wait_reset)) {
 730
 731                 msleep(1000);
 732
 733                 if (!test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags) &&
 734                     ha->flags.chip_reset_done)
 735                         break;
 736         }
 737         if (ha->flags.chip_reset_done)
 738                 return_status = QLA_SUCCESS;
 739         else
 740                 return_status = QLA_FUNCTION_FAILED;
 741
 742         return return_status;
 743 }
 744
 745 /*
 746  * qla2x00_wait_for_loop_ready
 747  *    Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
 748  *    to be in LOOP_READY state.
 749  * Input:
 750  *     ha - pointer to host adapter structure
 751  *
 752  * Note:
 753  *    Does context switching-Release SPIN_LOCK
 754  *    (if any) before calling this routine.
 755  *
 756  *
 757  * Return:
 758  *    Success (LOOP_READY) : 0
 759  *    Failed  (LOOP_NOT_READY) : 1
 760  */
 761 static inline int
 762 qla2x00_wait_for_loop_ready(scsi_qla_host_t *vha)
 763 {
 764         int      return_status = QLA_SUCCESS;
 765         unsigned long loop_timeout ;
 766         struct qla_hw_data *ha = vha->hw;
 767         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 768
 769         /* wait for 5 min at the max for loop to be ready */
 770         loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 771
 772         while ((!atomic_read(&base_vha->loop_down_timer) &&
 773             atomic_read(&base_vha->loop_state) == LOOP_DOWN) ||
 774             atomic_read(&base_vha->loop_state) != LOOP_READY) {
 775                 if (atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
 776                         return_status = QLA_FUNCTION_FAILED;
 777                         break;
 778                 }
 779                 msleep(1000);
 780                 if (time_after_eq(jiffies, loop_timeout)) {
 781                         return_status = QLA_FUNCTION_FAILED;
 782                         break;
 783                 }
 784         }
 785         return (return_status);
 786 }
 787
 788 static void
 789 sp_get(struct srb *sp)
 790 {
 791         atomic_inc(&sp->ref_count);
 792 }
 793
 794 /**************************************************************************
 795 * qla2xxx_eh_abort
 796 *
 797 * Description:
 798 *    The abort function will abort the specified command.
 799 *
 800 * Input:
 801 *    cmd = Linux SCSI command packet to be aborted.
 802 *
 803 * Returns:
 804 *    Either SUCCESS or FAILED.
 805 *
 806 * Note:
 807 *    Only return FAILED if command not returned by firmware.
 808 **************************************************************************/
 809 static int
 810 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
 811 {
 812         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 813         srb_t *sp;
 814         int ret;
 815         unsigned int id, lun;
 816         unsigned long flags;
 817         int wait = 0;
 818         struct qla_hw_data *ha = vha->hw;
 819
 820         if (!CMD_SP(cmd))
 821                 return SUCCESS;
 822
 823         ret = fc_block_scsi_eh(cmd);
 824         if (ret != 0)
 825                 return ret;
 826         ret = SUCCESS;
 827
 828         id = cmd->device->id;
 829         lun = cmd->device->lun;
 830
 831         spin_lock_irqsave(&ha->hardware_lock, flags);
 832         sp = (srb_t *) CMD_SP(cmd);
 833         if (!sp) {
 834                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 835                 return SUCCESS;
 836         }
 837
 838         DEBUG2(printk("%s(%ld): aborting sp %p from RISC.",
 839             __func__, vha->host_no, sp));
 840
 841         /* Get a reference to the sp and drop the lock.*/
 842         sp_get(sp);
 843
 844         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 845         if (ha->isp_ops->abort_command(sp)) {
 846                 DEBUG2(printk("%s(%ld): abort_command "
 847                 "mbx failed.\n", __func__, vha->host_no));
 848                 ret = FAILED;
 849         } else {
 850                 DEBUG3(printk("%s(%ld): abort_command "
 851                 "mbx success.\n", __func__, vha->host_no));
 852                 wait = 1;
 853         }
 854         qla2x00_sp_compl(ha, sp);
 855
 856         /* Wait for the command to be returned. */
 857         if (wait) {
 858                 if (qla2x00_eh_wait_on_command(cmd) != QLA_SUCCESS) {
 859                         qla_printk(KERN_ERR, ha,
 860                             "scsi(%ld:%d:%d): Abort handler timed out -- %x.\n",
 861                             vha->host_no, id, lun, ret);
 862                         ret = FAILED;
 863                 }
 864         }
 865
 866         qla_printk(KERN_INFO, ha,
 867             "scsi(%ld:%d:%d): Abort command issued -- %d %x.\n",
 868             vha->host_no, id, lun, wait, ret);
 869
 870         return ret;
 871 }
 872
 873 int
 874 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *vha, unsigned int t,
 875         unsigned int l, enum nexus_wait_type type)
 876 {
 877         int cnt, match, status;
 878         unsigned long flags;
 879         struct qla_hw_data *ha = vha->hw;
 880         struct req_que *req;
 881         srb_t *sp;
 882
 883         status = QLA_SUCCESS;
 884
 885         spin_lock_irqsave(&ha->hardware_lock, flags);
 886         req = vha->req;
 887         for (cnt = 1; status == QLA_SUCCESS &&
 888                 cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
 889                 sp = req->outstanding_cmds[cnt];
 890                 if (!sp)
 891                         continue;
 892                 if ((sp->ctx) && !IS_PROT_IO(sp))
 893                         continue;
 894                 if (vha->vp_idx != sp->fcport->vha->vp_idx)
 895                         continue;
 896                 match = 0;
 897                 switch (type) {
 898                 case WAIT_HOST:
 899                         match = 1;
 900                         break;
 901                 case WAIT_TARGET:
 902                         match = sp->cmd->device->id == t;
 903                         break;
 904                 case WAIT_LUN:
 905                         match = (sp->cmd->device->id == t &&
 906                                 sp->cmd->device->lun == l);
 907                         break;
 908                 }
 909                 if (!match)
 910                         continue;
 911
 912                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 913                 status = qla2x00_eh_wait_on_command(sp->cmd);
 914                 spin_lock_irqsave(&ha->hardware_lock, flags);
 915         }
 916         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 917
 918         return status;
 919 }
 920
 921 static char *reset_errors[] = {
 922         "HBA not online",
 923         "HBA not ready",
 924         "Task management failed",
 925         "Waiting for command completions",
 926 };
 927
 928 static int
 929 __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
 930     struct scsi_cmnd *cmd, int (*do_reset)(struct fc_port *, unsigned int, int))
 931 {
 932         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 933         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 934         int err;
 935
 936         if (!fcport)
 937                 return FAILED;
 938
 939         err = fc_block_scsi_eh(cmd);
 940         if (err != 0)
 941                 return err;
 942
 943         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET ISSUED.\n",
 944             vha->host_no, cmd->device->id, cmd->device->lun, name);
 945
 946         err = 0;
 947         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
 948                 goto eh_reset_failed;
 949         err = 1;
 950         if (qla2x00_wait_for_loop_ready(vha) != QLA_SUCCESS)
 951                 goto eh_reset_failed;
 952         err = 2;
 953         if (do_reset(fcport, cmd->device->lun, cmd->request->cpu + 1)
 954                 != QLA_SUCCESS)
 955                 goto eh_reset_failed;
 956         err = 3;
 957         if (qla2x00_eh_wait_for_pending_commands(vha, cmd->device->id,
 958             cmd->device->lun, type) != QLA_SUCCESS)
 959                 goto eh_reset_failed;
 960
 961         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET SUCCEEDED.\n",
 962             vha->host_no, cmd->device->id, cmd->device->lun, name);
 963
 964         return SUCCESS;
 965
 966 eh_reset_failed:
 967         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET FAILED: %s.\n"
 968             , vha->host_no, cmd->device->id, cmd->device->lun, name,
 969             reset_errors[err]);
 970         return FAILED;
 971 }
 972
 973 static int
 974 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
 975 {
 976         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 977         struct qla_hw_data *ha = vha->hw;
 978
 979         return __qla2xxx_eh_generic_reset("DEVICE", WAIT_LUN, cmd,
 980             ha->isp_ops->lun_reset);
 981 }
 982
 983 static int
 984 qla2xxx_eh_target_reset(struct scsi_cmnd *cmd)
 985 {
 986         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 987         struct qla_hw_data *ha = vha->hw;
 988
 989         return __qla2xxx_eh_generic_reset("TARGET", WAIT_TARGET, cmd,
 990             ha->isp_ops->target_reset);
 991 }
 992
 993 /**************************************************************************
 994 * qla2xxx_eh_bus_reset
 995 *
 996 * Description:
 997 *    The bus reset function will reset the bus and abort any executing
 998 *    commands.
 999 *
1000 * Input:
1001 *    cmd = Linux SCSI command packet of the command that cause the
1002 *          bus reset.
1003 *
1004 * Returns:
1005 *    SUCCESS/FAILURE (defined as macro in scsi.h).
1006 *
1007 **************************************************************************/
1008 static int
1009 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
1010 {
1011         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1012         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1013         int ret = FAILED;
1014         unsigned int id, lun;
1015
1016         id = cmd->device->id;
1017         lun = cmd->device->lun;
1018
1019         if (!fcport)
1020                 return ret;
1021
1022         ret = fc_block_scsi_eh(cmd);
1023         if (ret != 0)
1024                 return ret;
1025         ret = FAILED;
1026
1027         qla_printk(KERN_INFO, vha->hw,
1028             "scsi(%ld:%d:%d): BUS RESET ISSUED.\n", vha->host_no, id, lun);
1029
1030         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1031                 DEBUG2(printk("%s failed:board disabled\n",__func__));
1032                 goto eh_bus_reset_done;
1033         }
1034
1035         if (qla2x00_wait_for_loop_ready(vha) == QLA_SUCCESS) {
1036                 if (qla2x00_loop_reset(vha) == QLA_SUCCESS)
1037                         ret = SUCCESS;
1038         }
1039         if (ret == FAILED)
1040                 goto eh_bus_reset_done;
1041
1042         /* Flush outstanding commands. */
1043         if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST) !=
1044             QLA_SUCCESS)
1045                 ret = FAILED;
1046
1047 eh_bus_reset_done:
1048         qla_printk(KERN_INFO, vha->hw, "%s: reset %s\n", __func__,
1049             (ret == FAILED) ? "failed" : "succeeded");
1050
1051         return ret;
1052 }
1053
1054 /**************************************************************************
1055 * qla2xxx_eh_host_reset
1056 *
1057 * Description:
1058 *    The reset function will reset the Adapter.
1059 *
1060 * Input:
1061 *      cmd = Linux SCSI command packet of the command that cause the
1062 *            adapter reset.
1063 *
1064 * Returns:
1065 *      Either SUCCESS or FAILED.
1066 *
1067 * Note:
1068 **************************************************************************/
1069 static int
1070 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
1071 {
1072         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1073         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1074         struct qla_hw_data *ha = vha->hw;
1075         int ret = FAILED;
1076         unsigned int id, lun;
1077         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1078
1079         id = cmd->device->id;
1080         lun = cmd->device->lun;
1081
1082         if (!fcport)
1083                 return ret;
1084
1085         ret = fc_block_scsi_eh(cmd);
1086         if (ret != 0)
1087                 return ret;
1088         ret = FAILED;
1089
1090         qla_printk(KERN_INFO, ha,
1091             "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", vha->host_no, id, lun);
1092
1093         if (qla2x00_wait_for_reset_ready(vha) != QLA_SUCCESS)
1094                 goto eh_host_reset_lock;
1095
1096         /*
1097          * Fixme-may be dpc thread is active and processing
1098          * loop_resync,so wait a while for it to
1099          * be completed and then issue big hammer.Otherwise
1100          * it may cause I/O failure as big hammer marks the
1101          * devices as lost kicking of the port_down_timer
1102          * while dpc is stuck for the mailbox to complete.
1103          */
1104         qla2x00_wait_for_loop_ready(vha);
1105         if (vha != base_vha) {
1106                 if (qla2x00_vp_abort_isp(vha))
1107                         goto eh_host_reset_lock;
1108         } else {
1109                 if (IS_QLA82XX(vha->hw)) {
1110                         if (!qla82xx_fcoe_ctx_reset(vha)) {
1111                                 /* Ctx reset success */
1112                                 ret = SUCCESS;
1113                                 goto eh_host_reset_lock;
1114                         }
1115                         /* fall thru if ctx reset failed */
1116                 }
1117                 if (ha->wq)
1118                         flush_workqueue(ha->wq);
1119
1120                 set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1121                 if (ha->isp_ops->abort_isp(base_vha)) {
1122                         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1123                         /* failed. schedule dpc to try */
1124                         set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags);
1125
1126                         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
1127                                 goto eh_host_reset_lock;
1128                 }
1129                 clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1130         }
1131
1132         /* Waiting for command to be returned to OS.*/
1133         if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST) ==
1134                 QLA_SUCCESS)
1135                 ret = SUCCESS;
1136
1137 eh_host_reset_lock:
1138         qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
1139             (ret == FAILED) ? "failed" : "succeeded");
1140
1141         return ret;
1142 }
1143
1144 /*
1145 * qla2x00_loop_reset
1146 *      Issue loop reset.
1147 *
1148 * Input:
1149 *      ha = adapter block pointer.
1150 *
1151 * Returns:
1152 *      0 = success
1153 */
1154 int
1155 qla2x00_loop_reset(scsi_qla_host_t *vha)
1156 {
1157         int ret;
1158         struct fc_port *fcport;
1159         struct qla_hw_data *ha = vha->hw;
1160
1161         if (ql2xtargetreset == 1 && ha->flags.enable_target_reset) {
1162                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
1163                         if (fcport->port_type != FCT_TARGET)
1164                                 continue;
1165
1166                         ret = ha->isp_ops->target_reset(fcport, 0, 0);
1167                         if (ret != QLA_SUCCESS) {
1168                                 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1169                                     "target_reset=%d d_id=%x.\n", __func__,
1170                                     vha->host_no, ret, fcport->d_id.b24));
1171                         }
1172                 }
1173         }
1174
1175         if (ha->flags.enable_lip_full_login && !IS_QLA8XXX_TYPE(ha)) {
1176                 ret = qla2x00_full_login_lip(vha);
1177                 if (ret != QLA_SUCCESS) {
1178                         DEBUG2_3(printk("%s(%ld): failed: "
1179                             "full_login_lip=%d.\n", __func__, vha->host_no,
1180                             ret));
1181                 }
1182                 atomic_set(&vha->loop_state, LOOP_DOWN);
1183                 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1184                 qla2x00_mark_all_devices_lost(vha, 0);
1185                 qla2x00_wait_for_loop_ready(vha);
1186         }
1187
1188         if (ha->flags.enable_lip_reset) {
1189                 ret = qla2x00_lip_reset(vha);
1190                 if (ret != QLA_SUCCESS) {
1191                         DEBUG2_3(printk("%s(%ld): failed: "
1192                             "lip_reset=%d.\n", __func__, vha->host_no, ret));
1193                 } else
1194                         qla2x00_wait_for_loop_ready(vha);
1195         }
1196
1197         /* Issue marker command only when we are going to start the I/O */
1198         vha->marker_needed = 1;
1199
1200         return QLA_SUCCESS;
1201 }
1202
1203 void
1204 qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res)
1205 {
1206         int que, cnt;
1207         unsigned long flags;
1208         srb_t *sp;
1209         struct srb_ctx *ctx;
1210         struct qla_hw_data *ha = vha->hw;
1211         struct req_que *req;
1212
1213         spin_lock_irqsave(&ha->hardware_lock, flags);
1214         for (que = 0; que < ha->max_req_queues; que++) {
1215                 req = ha->req_q_map[que];
1216                 if (!req)
1217                         continue;
1218                 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
1219                         sp = req->outstanding_cmds[cnt];
1220                         if (sp) {
1221                                 req->outstanding_cmds[cnt] = NULL;
1222                                 if (!sp->ctx ||
1223                                         (sp->flags & SRB_FCP_CMND_DMA_VALID) ||
1224                                         IS_PROT_IO(sp)) {
1225                                         sp->cmd->result = res;
1226                                         qla2x00_sp_compl(ha, sp);
1227                                 } else {
1228                                         ctx = sp->ctx;
1229                                         if (ctx->type == SRB_LOGIN_CMD ||
1230                                             ctx->type == SRB_LOGOUT_CMD) {
1231                                                 ctx->u.iocb_cmd->free(sp);
1232                                         } else {
1233                                                 struct fc_bsg_job *bsg_job =
1234                                                     ctx->u.bsg_job;
1235                                                 if (bsg_job->request->msgcode
1236                                                     == FC_BSG_HST_CT)
1237                                                         kfree(sp->fcport);
1238                                                 bsg_job->req->errors = 0;
1239                                                 bsg_job->reply->result = res;
1240                                                 bsg_job->job_done(bsg_job);
1241                                                 kfree(sp->ctx);
1242                                                 mempool_free(sp,
1243                                                         ha->srb_mempool);
1244                                         }
1245                                 }
1246                         }
1247                 }
1248         }
1249         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1250 }
1251
1252 static int
1253 qla2xxx_slave_alloc(struct scsi_device *sdev)
1254 {
1255         struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1256
1257         if (!rport || fc_remote_port_chkready(rport))
1258                 return -ENXIO;
1259
1260         sdev->hostdata = *(fc_port_t **)rport->dd_data;
1261
1262         return 0;
1263 }
1264
1265 static int
1266 qla2xxx_slave_configure(struct scsi_device *sdev)
1267 {
1268         scsi_qla_host_t *vha = shost_priv(sdev->host);
1269         struct req_que *req = vha->req;
1270
1271         if (sdev->tagged_supported)
1272                 scsi_activate_tcq(sdev, req->max_q_depth);
1273         else
1274                 scsi_deactivate_tcq(sdev, req->max_q_depth);
1275         return 0;
1276 }
1277
1278 static void
1279 qla2xxx_slave_destroy(struct scsi_device *sdev)
1280 {
1281         sdev->hostdata = NULL;
1282 }
1283
1284 static void qla2x00_handle_queue_full(struct scsi_device *sdev, int qdepth)
1285 {
1286         fc_port_t *fcport = (struct fc_port *) sdev->hostdata;
1287
1288         if (!scsi_track_queue_full(sdev, qdepth))
1289                 return;
1290
1291         DEBUG2(qla_printk(KERN_INFO, fcport->vha->hw,
1292                 "scsi(%ld:%d:%d:%d): Queue depth adjusted-down to %d.\n",
1293                 fcport->vha->host_no, sdev->channel, sdev->id, sdev->lun,
1294                 sdev->queue_depth));
1295 }
1296
1297 static void qla2x00_adjust_sdev_qdepth_up(struct scsi_device *sdev, int qdepth)
1298 {
1299         fc_port_t *fcport = sdev->hostdata;
1300         struct scsi_qla_host *vha = fcport->vha;
1301         struct qla_hw_data *ha = vha->hw;
1302         struct req_que *req = NULL;
1303
1304         req = vha->req;
1305         if (!req)
1306                 return;
1307
1308         if (req->max_q_depth <= sdev->queue_depth || req->max_q_depth < qdepth)
1309                 return;
1310
1311         if (sdev->ordered_tags)
1312                 scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, qdepth);
1313         else
1314                 scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, qdepth);
1315
1316         DEBUG2(qla_printk(KERN_INFO, ha,
1317                "scsi(%ld:%d:%d:%d): Queue depth adjusted-up to %d.\n",
1318                fcport->vha->host_no, sdev->channel, sdev->id, sdev->lun,
1319                sdev->queue_depth));
1320 }
1321
1322 static int
1323 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
1324 {
1325         switch (reason) {
1326         case SCSI_QDEPTH_DEFAULT:
1327                 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1328                 break;
1329         case SCSI_QDEPTH_QFULL:
1330                 qla2x00_handle_queue_full(sdev, qdepth);
1331                 break;
1332         case SCSI_QDEPTH_RAMP_UP:
1333                 qla2x00_adjust_sdev_qdepth_up(sdev, qdepth);
1334                 break;
1335         default:
1336                 return -EOPNOTSUPP;
1337         }
1338
1339         return sdev->queue_depth;
1340 }
1341
1342 static int
1343 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1344 {
1345         if (sdev->tagged_supported) {
1346                 scsi_set_tag_type(sdev, tag_type);
1347                 if (tag_type)
1348                         scsi_activate_tcq(sdev, sdev->queue_depth);
1349                 else
1350                         scsi_deactivate_tcq(sdev, sdev->queue_depth);
1351         } else
1352                 tag_type = 0;
1353
1354         return tag_type;
1355 }
1356
1357 /**
1358  * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1359  * @ha: HA context
1360  *
1361  * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1362  * supported addressing method.
1363  */
1364 static void
1365 qla2x00_config_dma_addressing(struct qla_hw_data *ha)
1366 {
1367         /* Assume a 32bit DMA mask. */
1368         ha->flags.enable_64bit_addressing = 0;
1369
1370         if (!dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(64))) {
1371                 /* Any upper-dword bits set? */
1372                 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1373                     !pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
1374                         /* Ok, a 64bit DMA mask is applicable. */
1375                         ha->flags.enable_64bit_addressing = 1;
1376                         ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1377                         ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1378                         return;
1379                 }
1380         }
1381
1382         dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(32));
1383         pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(32));
1384 }
1385
1386 static void
1387 qla2x00_enable_intrs(struct qla_hw_data *ha)
1388 {
1389         unsigned long flags = 0;
1390         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1391
1392         spin_lock_irqsave(&ha->hardware_lock, flags);
1393         ha->interrupts_on = 1;
1394         /* enable risc and host interrupts */
1395         WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1396         RD_REG_WORD(&reg->ictrl);
1397         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1398
1399 }
1400
1401 static void
1402 qla2x00_disable_intrs(struct qla_hw_data *ha)
1403 {
1404         unsigned long flags = 0;
1405         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1406
1407         spin_lock_irqsave(&ha->hardware_lock, flags);
1408         ha->interrupts_on = 0;
1409         /* disable risc and host interrupts */
1410         WRT_REG_WORD(&reg->ictrl, 0);
1411         RD_REG_WORD(&reg->ictrl);
1412         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1413 }
1414
1415 static void
1416 qla24xx_enable_intrs(struct qla_hw_data *ha)
1417 {
1418         unsigned long flags = 0;
1419         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1420
1421         spin_lock_irqsave(&ha->hardware_lock, flags);
1422         ha->interrupts_on = 1;
1423         WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1424         RD_REG_DWORD(&reg->ictrl);
1425         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1426 }
1427
1428 static void
1429 qla24xx_disable_intrs(struct qla_hw_data *ha)
1430 {
1431         unsigned long flags = 0;
1432         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1433
1434         if (IS_NOPOLLING_TYPE(ha))
1435                 return;
1436         spin_lock_irqsave(&ha->hardware_lock, flags);
1437         ha->interrupts_on = 0;
1438         WRT_REG_DWORD(&reg->ictrl, 0);
1439         RD_REG_DWORD(&reg->ictrl);
1440         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1441 }
1442
1443 static struct isp_operations qla2100_isp_ops = {
1444         .pci_config             = qla2100_pci_config,
1445         .reset_chip             = qla2x00_reset_chip,
1446         .chip_diag              = qla2x00_chip_diag,
1447         .config_rings           = qla2x00_config_rings,
1448         .reset_adapter          = qla2x00_reset_adapter,
1449         .nvram_config           = qla2x00_nvram_config,
1450         .update_fw_options      = qla2x00_update_fw_options,
1451         .load_risc              = qla2x00_load_risc,
1452         .pci_info_str           = qla2x00_pci_info_str,
1453         .fw_version_str         = qla2x00_fw_version_str,
1454         .intr_handler           = qla2100_intr_handler,
1455         .enable_intrs           = qla2x00_enable_intrs,
1456         .disable_intrs          = qla2x00_disable_intrs,
1457         .abort_command          = qla2x00_abort_command,
1458         .target_reset           = qla2x00_abort_target,
1459         .lun_reset              = qla2x00_lun_reset,
1460         .fabric_login           = qla2x00_login_fabric,
1461         .fabric_logout          = qla2x00_fabric_logout,
1462         .calc_req_entries       = qla2x00_calc_iocbs_32,
1463         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1464         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1465         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1466         .read_nvram             = qla2x00_read_nvram_data,
1467         .write_nvram            = qla2x00_write_nvram_data,
1468         .fw_dump                = qla2100_fw_dump,
1469         .beacon_on              = NULL,
1470         .beacon_off             = NULL,
1471         .beacon_blink           = NULL,
1472         .read_optrom            = qla2x00_read_optrom_data,
1473         .write_optrom           = qla2x00_write_optrom_data,
1474         .get_flash_version      = qla2x00_get_flash_version,
1475         .start_scsi             = qla2x00_start_scsi,
1476         .abort_isp              = qla2x00_abort_isp,
1477 };
1478
1479 static struct isp_operations qla2300_isp_ops = {
1480         .pci_config             = qla2300_pci_config,
1481         .reset_chip             = qla2x00_reset_chip,
1482         .chip_diag              = qla2x00_chip_diag,
1483         .config_rings           = qla2x00_config_rings,
1484         .reset_adapter          = qla2x00_reset_adapter,
1485         .nvram_config           = qla2x00_nvram_config,
1486         .update_fw_options      = qla2x00_update_fw_options,
1487         .load_risc              = qla2x00_load_risc,
1488         .pci_info_str           = qla2x00_pci_info_str,
1489         .fw_version_str         = qla2x00_fw_version_str,
1490         .intr_handler           = qla2300_intr_handler,
1491         .enable_intrs           = qla2x00_enable_intrs,
1492         .disable_intrs          = qla2x00_disable_intrs,
1493         .abort_command          = qla2x00_abort_command,
1494         .target_reset           = qla2x00_abort_target,
1495         .lun_reset              = qla2x00_lun_reset,
1496         .fabric_login           = qla2x00_login_fabric,
1497         .fabric_logout          = qla2x00_fabric_logout,
1498         .calc_req_entries       = qla2x00_calc_iocbs_32,
1499         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1500         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1501         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1502         .read_nvram             = qla2x00_read_nvram_data,
1503         .write_nvram            = qla2x00_write_nvram_data,
1504         .fw_dump                = qla2300_fw_dump,
1505         .beacon_on              = qla2x00_beacon_on,
1506         .beacon_off             = qla2x00_beacon_off,
1507         .beacon_blink           = qla2x00_beacon_blink,
1508         .read_optrom            = qla2x00_read_optrom_data,
1509         .write_optrom           = qla2x00_write_optrom_data,
1510         .get_flash_version      = qla2x00_get_flash_version,
1511         .start_scsi             = qla2x00_start_scsi,
1512         .abort_isp              = qla2x00_abort_isp,
1513 };
1514
1515 static struct isp_operations qla24xx_isp_ops = {
1516         .pci_config             = qla24xx_pci_config,
1517         .reset_chip             = qla24xx_reset_chip,
1518         .chip_diag              = qla24xx_chip_diag,
1519         .config_rings           = qla24xx_config_rings,
1520         .reset_adapter          = qla24xx_reset_adapter,
1521         .nvram_config           = qla24xx_nvram_config,
1522         .update_fw_options      = qla24xx_update_fw_options,
1523         .load_risc              = qla24xx_load_risc,
1524         .pci_info_str           = qla24xx_pci_info_str,
1525         .fw_version_str         = qla24xx_fw_version_str,
1526         .intr_handler           = qla24xx_intr_handler,
1527         .enable_intrs           = qla24xx_enable_intrs,
1528         .disable_intrs          = qla24xx_disable_intrs,
1529         .abort_command          = qla24xx_abort_command,
1530         .target_reset           = qla24xx_abort_target,
1531         .lun_reset              = qla24xx_lun_reset,
1532         .fabric_login           = qla24xx_login_fabric,
1533         .fabric_logout          = qla24xx_fabric_logout,
1534         .calc_req_entries       = NULL,
1535         .build_iocbs            = NULL,
1536         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1537         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1538         .read_nvram             = qla24xx_read_nvram_data,
1539         .write_nvram            = qla24xx_write_nvram_data,
1540         .fw_dump                = qla24xx_fw_dump,
1541         .beacon_on              = qla24xx_beacon_on,
1542         .beacon_off             = qla24xx_beacon_off,
1543         .beacon_blink           = qla24xx_beacon_blink,
1544         .read_optrom            = qla24xx_read_optrom_data,
1545         .write_optrom           = qla24xx_write_optrom_data,
1546         .get_flash_version      = qla24xx_get_flash_version,
1547         .start_scsi             = qla24xx_start_scsi,
1548         .abort_isp              = qla2x00_abort_isp,
1549 };
1550
1551 static struct isp_operations qla25xx_isp_ops = {
1552         .pci_config             = qla25xx_pci_config,
1553         .reset_chip             = qla24xx_reset_chip,
1554         .chip_diag              = qla24xx_chip_diag,
1555         .config_rings           = qla24xx_config_rings,
1556         .reset_adapter          = qla24xx_reset_adapter,
1557         .nvram_config           = qla24xx_nvram_config,
1558         .update_fw_options      = qla24xx_update_fw_options,
1559         .load_risc              = qla24xx_load_risc,
1560         .pci_info_str           = qla24xx_pci_info_str,
1561         .fw_version_str         = qla24xx_fw_version_str,
1562         .intr_handler           = qla24xx_intr_handler,
1563         .enable_intrs           = qla24xx_enable_intrs,
1564         .disable_intrs          = qla24xx_disable_intrs,
1565         .abort_command          = qla24xx_abort_command,
1566         .target_reset           = qla24xx_abort_target,
1567         .lun_reset              = qla24xx_lun_reset,
1568         .fabric_login           = qla24xx_login_fabric,
1569         .fabric_logout          = qla24xx_fabric_logout,
1570         .calc_req_entries       = NULL,
1571         .build_iocbs            = NULL,
1572         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1573         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1574         .read_nvram             = qla25xx_read_nvram_data,
1575         .write_nvram            = qla25xx_write_nvram_data,
1576         .fw_dump                = qla25xx_fw_dump,
1577         .beacon_on              = qla24xx_beacon_on,
1578         .beacon_off             = qla24xx_beacon_off,
1579         .beacon_blink           = qla24xx_beacon_blink,
1580         .read_optrom            = qla25xx_read_optrom_data,
1581         .write_optrom           = qla24xx_write_optrom_data,
1582         .get_flash_version      = qla24xx_get_flash_version,
1583         .start_scsi             = qla24xx_dif_start_scsi,
1584         .abort_isp              = qla2x00_abort_isp,
1585 };
1586
1587 static struct isp_operations qla81xx_isp_ops = {
1588         .pci_config             = qla25xx_pci_config,
1589         .reset_chip             = qla24xx_reset_chip,
1590         .chip_diag              = qla24xx_chip_diag,
1591         .config_rings           = qla24xx_config_rings,
1592         .reset_adapter          = qla24xx_reset_adapter,
1593         .nvram_config           = qla81xx_nvram_config,
1594         .update_fw_options      = qla81xx_update_fw_options,
1595         .load_risc              = qla81xx_load_risc,
1596         .pci_info_str           = qla24xx_pci_info_str,
1597         .fw_version_str         = qla24xx_fw_version_str,
1598         .intr_handler           = qla24xx_intr_handler,
1599         .enable_intrs           = qla24xx_enable_intrs,
1600         .disable_intrs          = qla24xx_disable_intrs,
1601         .abort_command          = qla24xx_abort_command,
1602         .target_reset           = qla24xx_abort_target,
1603         .lun_reset              = qla24xx_lun_reset,
1604         .fabric_login           = qla24xx_login_fabric,
1605         .fabric_logout          = qla24xx_fabric_logout,
1606         .calc_req_entries       = NULL,
1607         .build_iocbs            = NULL,
1608         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1609         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1610         .read_nvram             = NULL,
1611         .write_nvram            = NULL,
1612         .fw_dump                = qla81xx_fw_dump,
1613         .beacon_on              = qla24xx_beacon_on,
1614         .beacon_off             = qla24xx_beacon_off,
1615         .beacon_blink           = qla24xx_beacon_blink,
1616         .read_optrom            = qla25xx_read_optrom_data,
1617         .write_optrom           = qla24xx_write_optrom_data,
1618         .get_flash_version      = qla24xx_get_flash_version,
1619         .start_scsi             = qla24xx_dif_start_scsi,
1620         .abort_isp              = qla2x00_abort_isp,
1621 };
1622
1623 static struct isp_operations qla82xx_isp_ops = {
1624         .pci_config             = qla82xx_pci_config,
1625         .reset_chip             = qla82xx_reset_chip,
1626         .chip_diag              = qla24xx_chip_diag,
1627         .config_rings           = qla82xx_config_rings,
1628         .reset_adapter          = qla24xx_reset_adapter,
1629         .nvram_config           = qla81xx_nvram_config,
1630         .update_fw_options      = qla24xx_update_fw_options,
1631         .load_risc              = qla82xx_load_risc,
1632         .pci_info_str           = qla82xx_pci_info_str,
1633         .fw_version_str         = qla24xx_fw_version_str,
1634         .intr_handler           = qla82xx_intr_handler,
1635         .enable_intrs           = qla82xx_enable_intrs,
1636         .disable_intrs          = qla82xx_disable_intrs,
1637         .abort_command          = qla24xx_abort_command,
1638         .target_reset           = qla24xx_abort_target,
1639         .lun_reset              = qla24xx_lun_reset,
1640         .fabric_login           = qla24xx_login_fabric,
1641         .fabric_logout          = qla24xx_fabric_logout,
1642         .calc_req_entries       = NULL,
1643         .build_iocbs            = NULL,
1644         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1645         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1646         .read_nvram             = qla24xx_read_nvram_data,
1647         .write_nvram            = qla24xx_write_nvram_data,
1648         .fw_dump                = qla24xx_fw_dump,
1649         .beacon_on              = qla24xx_beacon_on,
1650         .beacon_off             = qla24xx_beacon_off,
1651         .beacon_blink           = qla24xx_beacon_blink,
1652         .read_optrom            = qla82xx_read_optrom_data,
1653         .write_optrom           = qla82xx_write_optrom_data,
1654         .get_flash_version      = qla24xx_get_flash_version,
1655         .start_scsi             = qla82xx_start_scsi,
1656         .abort_isp              = qla82xx_abort_isp,
1657 };
1658
1659 static inline void
1660 qla2x00_set_isp_flags(struct qla_hw_data *ha)
1661 {
1662         ha->device_type = DT_EXTENDED_IDS;
1663         switch (ha->pdev->device) {
1664         case PCI_DEVICE_ID_QLOGIC_ISP2100:
1665                 ha->device_type |= DT_ISP2100;
1666                 ha->device_type &= ~DT_EXTENDED_IDS;
1667                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1668                 break;
1669         case PCI_DEVICE_ID_QLOGIC_ISP2200:
1670                 ha->device_type |= DT_ISP2200;
1671                 ha->device_type &= ~DT_EXTENDED_IDS;
1672                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1673                 break;
1674         case PCI_DEVICE_ID_QLOGIC_ISP2300:
1675                 ha->device_type |= DT_ISP2300;
1676                 ha->device_type |= DT_ZIO_SUPPORTED;
1677                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1678                 break;
1679         case PCI_DEVICE_ID_QLOGIC_ISP2312:
1680                 ha->device_type |= DT_ISP2312;
1681                 ha->device_type |= DT_ZIO_SUPPORTED;
1682                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1683                 break;
1684         case PCI_DEVICE_ID_QLOGIC_ISP2322:
1685                 ha->device_type |= DT_ISP2322;
1686                 ha->device_type |= DT_ZIO_SUPPORTED;
1687                 if (ha->pdev->subsystem_vendor == 0x1028 &&
1688                     ha->pdev->subsystem_device == 0x0170)
1689                         ha->device_type |= DT_OEM_001;
1690                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1691                 break;
1692         case PCI_DEVICE_ID_QLOGIC_ISP6312:
1693                 ha->device_type |= DT_ISP6312;
1694                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1695                 break;
1696         case PCI_DEVICE_ID_QLOGIC_ISP6322:
1697                 ha->device_type |= DT_ISP6322;
1698                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1699                 break;
1700         case PCI_DEVICE_ID_QLOGIC_ISP2422:
1701                 ha->device_type |= DT_ISP2422;
1702                 ha->device_type |= DT_ZIO_SUPPORTED;
1703                 ha->device_type |= DT_FWI2;
1704                 ha->device_type |= DT_IIDMA;
1705                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1706                 break;
1707         case PCI_DEVICE_ID_QLOGIC_ISP2432:
1708                 ha->device_type |= DT_ISP2432;
1709                 ha->device_type |= DT_ZIO_SUPPORTED;
1710                 ha->device_type |= DT_FWI2;
1711                 ha->device_type |= DT_IIDMA;
1712                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1713                 break;
1714         case PCI_DEVICE_ID_QLOGIC_ISP8432:
1715                 ha->device_type |= DT_ISP8432;
1716                 ha->device_type |= DT_ZIO_SUPPORTED;
1717                 ha->device_type |= DT_FWI2;
1718                 ha->device_type |= DT_IIDMA;
1719                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1720                 break;
1721         case PCI_DEVICE_ID_QLOGIC_ISP5422:
1722                 ha->device_type |= DT_ISP5422;
1723                 ha->device_type |= DT_FWI2;
1724                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1725                 break;
1726         case PCI_DEVICE_ID_QLOGIC_ISP5432:
1727                 ha->device_type |= DT_ISP5432;
1728                 ha->device_type |= DT_FWI2;
1729                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1730                 break;
1731         case PCI_DEVICE_ID_QLOGIC_ISP2532:
1732                 ha->device_type |= DT_ISP2532;
1733                 ha->device_type |= DT_ZIO_SUPPORTED;
1734                 ha->device_type |= DT_FWI2;
1735                 ha->device_type |= DT_IIDMA;
1736                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1737                 break;
1738         case PCI_DEVICE_ID_QLOGIC_ISP8001:
1739                 ha->device_type |= DT_ISP8001;
1740                 ha->device_type |= DT_ZIO_SUPPORTED;
1741                 ha->device_type |= DT_FWI2;
1742                 ha->device_type |= DT_IIDMA;
1743                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1744                 break;
1745         case PCI_DEVICE_ID_QLOGIC_ISP8021:
1746                 ha->device_type |= DT_ISP8021;
1747                 ha->device_type |= DT_ZIO_SUPPORTED;
1748                 ha->device_type |= DT_FWI2;
1749                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1750                 /* Initialize 82XX ISP flags */
1751                 qla82xx_init_flags(ha);
1752                 break;
1753         }
1754
1755         if (IS_QLA82XX(ha))
1756                 ha->port_no = !(ha->portnum & 1);
1757         else
1758                 /* Get adapter physical port no from interrupt pin register. */
1759                 pci_read_config_byte(ha->pdev, PCI_INTERRUPT_PIN, &ha->port_no);
1760
1761         if (ha->port_no & 1)
1762                 ha->flags.port0 = 1;
1763         else
1764                 ha->flags.port0 = 0;
1765 }
1766
1767 static int
1768 qla2x00_iospace_config(struct qla_hw_data *ha)
1769 {
1770         resource_size_t pio;
1771         uint16_t msix;
1772         int cpus;
1773
1774         if (IS_QLA82XX(ha))
1775                 return qla82xx_iospace_config(ha);
1776
1777         if (pci_request_selected_regions(ha->pdev, ha->bars,
1778             QLA2XXX_DRIVER_NAME)) {
1779                 qla_printk(KERN_WARNING, ha,
1780                     "Failed to reserve PIO/MMIO regions (%s)\n",
1781                     pci_name(ha->pdev));
1782
1783                 goto iospace_error_exit;
1784         }
1785         if (!(ha->bars & 1))
1786                 goto skip_pio;
1787
1788         /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1789         pio = pci_resource_start(ha->pdev, 0);
1790         if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
1791                 if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1792                         qla_printk(KERN_WARNING, ha,
1793                             "Invalid PCI I/O region size (%s)...\n",
1794                                 pci_name(ha->pdev));
1795                         pio = 0;
1796                 }
1797         } else {
1798                 qla_printk(KERN_WARNING, ha,
1799                     "region #0 not a PIO resource (%s)...\n",
1800                     pci_name(ha->pdev));
1801                 pio = 0;
1802         }
1803         ha->pio_address = pio;
1804
1805 skip_pio:
1806         /* Use MMIO operations for all accesses. */
1807         if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
1808                 qla_printk(KERN_ERR, ha,
1809                     "region #1 not an MMIO resource (%s), aborting\n",
1810                     pci_name(ha->pdev));
1811                 goto iospace_error_exit;
1812         }
1813         if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
1814                 qla_printk(KERN_ERR, ha,
1815                     "Invalid PCI mem region size (%s), aborting\n",
1816                         pci_name(ha->pdev));
1817                 goto iospace_error_exit;
1818         }
1819
1820         ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
1821         if (!ha->iobase) {
1822                 qla_printk(KERN_ERR, ha,
1823                     "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1824
1825                 goto iospace_error_exit;
1826         }
1827
1828         /* Determine queue resources */
1829         ha->max_req_queues = ha->max_rsp_queues = 1;
1830         if ((ql2xmaxqueues <= 1 && !ql2xmultique_tag) ||
1831                 (ql2xmaxqueues > 1 && ql2xmultique_tag) ||
1832                 (!IS_QLA25XX(ha) && !IS_QLA81XX(ha)))
1833                 goto mqiobase_exit;
1834
1835         ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 3),
1836                         pci_resource_len(ha->pdev, 3));
1837         if (ha->mqiobase) {
1838                 /* Read MSIX vector size of the board */
1839                 pci_read_config_word(ha->pdev, QLA_PCI_MSIX_CONTROL, &msix);
1840                 ha->msix_count = msix;
1841                 /* Max queues are bounded by available msix vectors */
1842                 /* queue 0 uses two msix vectors */
1843                 if (ql2xmultique_tag) {
1844                         cpus = num_online_cpus();
1845                         ha->max_rsp_queues = (ha->msix_count - 1 > cpus) ?
1846                                 (cpus + 1) : (ha->msix_count - 1);
1847                         ha->max_req_queues = 2;
1848                 } else if (ql2xmaxqueues > 1) {
1849                         ha->max_req_queues = ql2xmaxqueues > QLA_MQ_SIZE ?
1850                                                 QLA_MQ_SIZE : ql2xmaxqueues;
1851                         DEBUG2(qla_printk(KERN_INFO, ha, "QoS mode set, max no"
1852                         " of request queues:%d\n", ha->max_req_queues));
1853                 }
1854                 qla_printk(KERN_INFO, ha,
1855                         "MSI-X vector count: %d\n", msix);
1856         } else
1857                 qla_printk(KERN_INFO, ha, "BAR 3 not enabled\n");
1858
1859 mqiobase_exit:
1860         ha->msix_count = ha->max_rsp_queues + 1;
1861         return (0);
1862
1863 iospace_error_exit:
1864         return (-ENOMEM);
1865 }
1866
1867 static void
1868 qla2xxx_scan_start(struct Scsi_Host *shost)
1869 {
1870         scsi_qla_host_t *vha = shost_priv(shost);
1871
1872         if (vha->hw->flags.running_gold_fw)
1873                 return;
1874
1875         set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1876         set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1877         set_bit(RSCN_UPDATE, &vha->dpc_flags);
1878         set_bit(NPIV_CONFIG_NEEDED, &vha->dpc_flags);
1879 }
1880
1881 static int
1882 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1883 {
1884         scsi_qla_host_t *vha = shost_priv(shost);
1885
1886         if (!vha->host)
1887                 return 1;
1888         if (time > vha->hw->loop_reset_delay * HZ)
1889                 return 1;
1890
1891         return atomic_read(&vha->loop_state) == LOOP_READY;
1892 }
1893
1894 /*
1895  * PCI driver interface
1896  */
1897 static int __devinit
1898 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1899 {
1900         int     ret = -ENODEV;
1901         struct Scsi_Host *host;
1902         scsi_qla_host_t *base_vha = NULL;
1903         struct qla_hw_data *ha;
1904         char pci_info[30];
1905         char fw_str[30];
1906         struct scsi_host_template *sht;
1907         int bars, max_id, mem_only = 0;
1908         uint16_t req_length = 0, rsp_length = 0;
1909         struct req_que *req = NULL;
1910         struct rsp_que *rsp = NULL;
1911
1912         bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
1913         sht = &qla2xxx_driver_template;
1914         if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1915             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1916             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8432 ||
1917             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1918             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
1919             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532 ||
1920             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8001 ||
1921             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8021) {
1922                 bars = pci_select_bars(pdev, IORESOURCE_MEM);
1923                 mem_only = 1;
1924         }
1925
1926         if (mem_only) {
1927                 if (pci_enable_device_mem(pdev))
1928                         goto probe_out;
1929         } else {
1930                 if (pci_enable_device(pdev))
1931                         goto probe_out;
1932         }
1933
1934         /* This may fail but that's ok */
1935         pci_enable_pcie_error_reporting(pdev);
1936
1937         ha = kzalloc(sizeof(struct qla_hw_data), GFP_KERNEL);
1938         if (!ha) {
1939                 DEBUG(printk("Unable to allocate memory for ha\n"));
1940                 goto probe_out;
1941         }
1942         ha->pdev = pdev;
1943
1944         /* Clear our data area */
1945         ha->bars = bars;
1946         ha->mem_only = mem_only;
1947         spin_lock_init(&ha->hardware_lock);
1948         spin_lock_init(&ha->vport_slock);
1949
1950         /* Set ISP-type information. */
1951         qla2x00_set_isp_flags(ha);
1952
1953         /* Set EEH reset type to fundamental if required by hba */
1954         if ( IS_QLA24XX(ha) || IS_QLA25XX(ha) || IS_QLA81XX(ha)) {
1955                 pdev->needs_freset = 1;
1956         }
1957
1958         /* Configure PCI I/O space */
1959         ret = qla2x00_iospace_config(ha);
1960         if (ret)
1961                 goto probe_hw_failed;
1962
1963         qla_printk(KERN_INFO, ha,
1964             "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1965             ha->iobase);
1966
1967         ha->prev_topology = 0;
1968         ha->init_cb_size = sizeof(init_cb_t);
1969         ha->link_data_rate = PORT_SPEED_UNKNOWN;
1970         ha->optrom_size = OPTROM_SIZE_2300;
1971
1972         /* Assign ISP specific operations. */
1973         max_id = MAX_TARGETS_2200;
1974         if (IS_QLA2100(ha)) {
1975                 max_id = MAX_TARGETS_2100;
1976                 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1977                 req_length = REQUEST_ENTRY_CNT_2100;
1978                 rsp_length = RESPONSE_ENTRY_CNT_2100;
1979                 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
1980                 ha->gid_list_info_size = 4;
1981                 ha->flash_conf_off = ~0;
1982                 ha->flash_data_off = ~0;
1983                 ha->nvram_conf_off = ~0;
1984                 ha->nvram_data_off = ~0;
1985                 ha->isp_ops = &qla2100_isp_ops;
1986         } else if (IS_QLA2200(ha)) {
1987                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1988                 req_length = REQUEST_ENTRY_CNT_2200;
1989                 rsp_length = RESPONSE_ENTRY_CNT_2100;
1990                 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
1991                 ha->gid_list_info_size = 4;
1992                 ha->flash_conf_off = ~0;
1993                 ha->flash_data_off = ~0;
1994                 ha->nvram_conf_off = ~0;
1995                 ha->nvram_data_off = ~0;
1996                 ha->isp_ops = &qla2100_isp_ops;
1997         } else if (IS_QLA23XX(ha)) {
1998                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1999                 req_length = REQUEST_ENTRY_CNT_2200;
2000                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2001                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2002                 ha->gid_list_info_size = 6;
2003                 if (IS_QLA2322(ha) || IS_QLA6322(ha))
2004                         ha->optrom_size = OPTROM_SIZE_2322;
2005                 ha->flash_conf_off = ~0;
2006                 ha->flash_data_off = ~0;
2007                 ha->nvram_conf_off = ~0;
2008                 ha->nvram_data_off = ~0;
2009                 ha->isp_ops = &qla2300_isp_ops;
2010         } else if (IS_QLA24XX_TYPE(ha)) {
2011                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2012                 req_length = REQUEST_ENTRY_CNT_24XX;
2013                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2014                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2015                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
2016                 ha->gid_list_info_size = 8;
2017                 ha->optrom_size = OPTROM_SIZE_24XX;
2018                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA24XX;
2019                 ha->isp_ops = &qla24xx_isp_ops;
2020                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2021                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2022                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2023                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2024         } else if (IS_QLA25XX(ha)) {
2025                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2026                 req_length = REQUEST_ENTRY_CNT_24XX;
2027                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2028                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2029                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
2030                 ha->gid_list_info_size = 8;
2031                 ha->optrom_size = OPTROM_SIZE_25XX;
2032                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2033                 ha->isp_ops = &qla25xx_isp_ops;
2034                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2035                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2036                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2037                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2038         } else if (IS_QLA81XX(ha)) {
2039                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2040                 req_length = REQUEST_ENTRY_CNT_24XX;
2041                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2042                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2043                 ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2044                 ha->gid_list_info_size = 8;
2045                 ha->optrom_size = OPTROM_SIZE_81XX;
2046                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2047                 ha->isp_ops = &qla81xx_isp_ops;
2048                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
2049                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
2050                 ha->nvram_conf_off = ~0;
2051                 ha->nvram_data_off = ~0;
2052         } else if (IS_QLA82XX(ha)) {
2053                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2054                 req_length = REQUEST_ENTRY_CNT_82XX;
2055                 rsp_length = RESPONSE_ENTRY_CNT_82XX;
2056                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2057                 ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2058                 ha->gid_list_info_size = 8;
2059                 ha->optrom_size = OPTROM_SIZE_82XX;
2060                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2061                 ha->isp_ops = &qla82xx_isp_ops;
2062                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2063                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2064                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2065                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2066         }
2067
2068         mutex_init(&ha->vport_lock);
2069         init_completion(&ha->mbx_cmd_comp);
2070         complete(&ha->mbx_cmd_comp);
2071         init_completion(&ha->mbx_intr_comp);
2072         init_completion(&ha->dcbx_comp);
2073
2074         set_bit(0, (unsigned long *) ha->vp_idx_map);
2075
2076         qla2x00_config_dma_addressing(ha);
2077         ret = qla2x00_mem_alloc(ha, req_length, rsp_length, &req, &rsp);
2078         if (!ret) {
2079                 qla_printk(KERN_WARNING, ha,
2080                     "[ERROR] Failed to allocate memory for adapter\n");
2081
2082                 goto probe_hw_failed;
2083         }
2084
2085         req->max_q_depth = MAX_Q_DEPTH;
2086         if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
2087                 req->max_q_depth = ql2xmaxqdepth;
2088
2089
2090         base_vha = qla2x00_create_host(sht, ha);
2091         if (!base_vha) {
2092                 qla_printk(KERN_WARNING, ha,
2093                     "[ERROR] Failed to allocate memory for scsi_host\n");
2094
2095                 ret = -ENOMEM;
2096                 qla2x00_mem_free(ha);
2097                 qla2x00_free_req_que(ha, req);
2098                 qla2x00_free_rsp_que(ha, rsp);
2099                 goto probe_hw_failed;
2100         }
2101
2102         pci_set_drvdata(pdev, base_vha);
2103
2104         host = base_vha->host;
2105         base_vha->req = req;
2106         host->can_queue = req->length + 128;
2107         if (IS_QLA2XXX_MIDTYPE(ha))
2108                 base_vha->mgmt_svr_loop_id = 10 + base_vha->vp_idx;
2109         else
2110                 base_vha->mgmt_svr_loop_id = MANAGEMENT_SERVER +
2111                                                 base_vha->vp_idx;
2112
2113         /* Set the SG table size based on ISP type */
2114         if (!IS_FWI2_CAPABLE(ha)) {
2115                 if (IS_QLA2100(ha))
2116                         host->sg_tablesize = 32;
2117         } else {
2118                 if (!IS_QLA82XX(ha))
2119                         host->sg_tablesize = QLA_SG_ALL;
2120         }
2121
2122         host->max_id = max_id;
2123         host->this_id = 255;
2124         host->cmd_per_lun = 3;
2125         host->unique_id = host->host_no;
2126         if ((IS_QLA25XX(ha) || IS_QLA81XX(ha)) && ql2xenabledif)
2127                 host->max_cmd_len = 32;
2128         else
2129                 host->max_cmd_len = MAX_CMDSZ;
2130         host->max_channel = MAX_BUSES - 1;
2131         host->max_lun = MAX_LUNS;
2132         host->transportt = qla2xxx_transport_template;
2133         sht->vendor_id = (SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC);
2134
2135         /* Set up the irqs */
2136         ret = qla2x00_request_irqs(ha, rsp);
2137         if (ret)
2138                 goto probe_init_failed;
2139
2140         pci_save_state(pdev);
2141
2142         /* Alloc arrays of request and response ring ptrs */
2143 que_init:
2144         if (!qla2x00_alloc_queues(ha)) {
2145                 qla_printk(KERN_WARNING, ha,
2146                 "[ERROR] Failed to allocate memory for queue"
2147                 " pointers\n");
2148                 goto probe_init_failed;
2149         }
2150
2151         ha->rsp_q_map[0] = rsp;
2152         ha->req_q_map[0] = req;
2153         rsp->req = req;
2154         req->rsp = rsp;
2155         set_bit(0, ha->req_qid_map);
2156         set_bit(0, ha->rsp_qid_map);
2157         /* FWI2-capable only. */
2158         req->req_q_in = &ha->iobase->isp24.req_q_in;
2159         req->req_q_out = &ha->iobase->isp24.req_q_out;
2160         rsp->rsp_q_in = &ha->iobase->isp24.rsp_q_in;
2161         rsp->rsp_q_out = &ha->iobase->isp24.rsp_q_out;
2162         if (ha->mqenable) {
2163                 req->req_q_in = &ha->mqiobase->isp25mq.req_q_in;
2164                 req->req_q_out = &ha->mqiobase->isp25mq.req_q_out;
2165                 rsp->rsp_q_in = &ha->mqiobase->isp25mq.rsp_q_in;
2166                 rsp->rsp_q_out =  &ha->mqiobase->isp25mq.rsp_q_out;
2167         }
2168
2169         if (IS_QLA82XX(ha)) {
2170                 req->req_q_out = &ha->iobase->isp82.req_q_out[0];
2171                 rsp->rsp_q_in = &ha->iobase->isp82.rsp_q_in[0];
2172                 rsp->rsp_q_out = &ha->iobase->isp82.rsp_q_out[0];
2173         }
2174
2175         if (qla2x00_initialize_adapter(base_vha)) {
2176                 qla_printk(KERN_WARNING, ha,
2177                     "Failed to initialize adapter\n");
2178
2179                 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
2180                     "Adapter flags %x.\n",
2181                     base_vha->host_no, base_vha->device_flags));
2182
2183                 if (IS_QLA82XX(ha)) {
2184                         qla82xx_idc_lock(ha);
2185                         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
2186                                 QLA82XX_DEV_FAILED);
2187                         qla82xx_idc_unlock(ha);
2188                         qla_printk(KERN_INFO, ha, "HW State: FAILED\n");
2189                 }
2190
2191                 ret = -ENODEV;
2192                 goto probe_failed;
2193         }
2194
2195         if (ha->mqenable) {
2196                 if (qla25xx_setup_mode(base_vha)) {
2197                         qla_printk(KERN_WARNING, ha,
2198                                 "Can't create queues, falling back to single"
2199                                 " queue mode\n");
2200                         goto que_init;
2201                 }
2202         }
2203
2204         if (ha->flags.running_gold_fw)
2205                 goto skip_dpc;
2206
2207         /*
2208          * Startup the kernel thread for this host adapter
2209          */
2210         ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
2211                         "%s_dpc", base_vha->host_str);
2212         if (IS_ERR(ha->dpc_thread)) {
2213                 qla_printk(KERN_WARNING, ha,
2214                     "Unable to start DPC thread!\n");
2215                 ret = PTR_ERR(ha->dpc_thread);
2216                 goto probe_failed;
2217         }
2218
2219 skip_dpc:
2220         list_add_tail(&base_vha->list, &ha->vp_list);
2221         base_vha->host->irq = ha->pdev->irq;
2222
2223         /* Initialized the timer */
2224         qla2x00_start_timer(base_vha, qla2x00_timer, WATCH_INTERVAL);
2225
2226         DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
2227             base_vha->host_no, ha));
2228
2229         if ((IS_QLA25XX(ha) || IS_QLA81XX(ha)) && ql2xenabledif) {
2230                 if (ha->fw_attributes & BIT_4) {
2231                         base_vha->flags.difdix_supported = 1;
2232                         DEBUG18(qla_printk(KERN_INFO, ha,
2233                             "Registering for DIF/DIX type 1 and 3"
2234                             " protection.\n"));
2235                         scsi_host_set_prot(host,
2236                             SHOST_DIF_TYPE1_PROTECTION
2237                             | SHOST_DIF_TYPE2_PROTECTION
2238                             | SHOST_DIF_TYPE3_PROTECTION
2239                             | SHOST_DIX_TYPE1_PROTECTION
2240                             | SHOST_DIX_TYPE2_PROTECTION
2241                             | SHOST_DIX_TYPE3_PROTECTION);
2242                         scsi_host_set_guard(host, SHOST_DIX_GUARD_CRC);
2243                 } else
2244                         base_vha->flags.difdix_supported = 0;
2245         }
2246
2247         ha->isp_ops->enable_intrs(ha);
2248
2249         ret = scsi_add_host(host, &pdev->dev);
2250         if (ret)
2251                 goto probe_failed;
2252
2253         base_vha->flags.init_done = 1;
2254         base_vha->flags.online = 1;
2255
2256         scsi_scan_host(host);
2257
2258         qla2x00_alloc_sysfs_attr(base_vha);
2259
2260         qla2x00_init_host_attr(base_vha);
2261
2262         qla2x00_dfs_setup(base_vha);
2263
2264         qla_printk(KERN_INFO, ha, "\n"
2265             " QLogic Fibre Channel HBA Driver: %s\n"
2266             "  QLogic %s - %s\n"
2267             "  ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
2268             qla2x00_version_str, ha->model_number,
2269             ha->model_desc ? ha->model_desc : "", pdev->device,
2270             ha->isp_ops->pci_info_str(base_vha, pci_info), pci_name(pdev),
2271             ha->flags.enable_64bit_addressing ? '+' : '-', base_vha->host_no,
2272             ha->isp_ops->fw_version_str(base_vha, fw_str));
2273
2274         return 0;
2275
2276 probe_init_failed:
2277         qla2x00_free_req_que(ha, req);
2278         qla2x00_free_rsp_que(ha, rsp);
2279         ha->max_req_queues = ha->max_rsp_queues = 0;
2280
2281 probe_failed:
2282         if (base_vha->timer_active)
2283                 qla2x00_stop_timer(base_vha);
2284         base_vha->flags.online = 0;
2285         if (ha->dpc_thread) {
2286                 struct task_struct *t = ha->dpc_thread;
2287
2288                 ha->dpc_thread = NULL;
2289                 kthread_stop(t);
2290         }
2291
2292         qla2x00_free_device(base_vha);
2293
2294         scsi_host_put(base_vha->host);
2295
2296 probe_hw_failed:
2297         if (IS_QLA82XX(ha)) {
2298                 qla82xx_idc_lock(ha);
2299                 qla82xx_clear_drv_active(ha);
2300                 qla82xx_idc_unlock(ha);
2301                 iounmap((device_reg_t __iomem *)ha->nx_pcibase);
2302                 if (!ql2xdbwr)
2303                         iounmap((device_reg_t __iomem *)ha->nxdb_wr_ptr);
2304         } else {
2305                 if (ha->iobase)
2306                         iounmap(ha->iobase);
2307         }
2308         pci_release_selected_regions(ha->pdev, ha->bars);
2309         kfree(ha);
2310         ha = NULL;
2311
2312 probe_out:
2313         pci_disable_device(pdev);
2314         return ret;
2315 }
2316
2317 static void
2318 qla2x00_shutdown(struct pci_dev *pdev)
2319 {
2320         scsi_qla_host_t *vha;
2321         struct qla_hw_data  *ha;
2322
2323         vha = pci_get_drvdata(pdev);
2324         ha = vha->hw;
2325
2326         /* Turn-off FCE trace */
2327         if (ha->flags.fce_enabled) {
2328                 qla2x00_disable_fce_trace(vha, NULL, NULL);
2329                 ha->flags.fce_enabled = 0;
2330         }
2331
2332         /* Turn-off EFT trace */
2333         if (ha->eft)
2334                 qla2x00_disable_eft_trace(vha);
2335
2336         /* Stop currently executing firmware. */
2337         qla2x00_try_to_stop_firmware(vha);
2338
2339         /* Turn adapter off line */
2340         vha->flags.online = 0;
2341
2342         /* turn-off interrupts on the card */
2343         if (ha->interrupts_on) {
2344                 vha->flags.init_done = 0;
2345                 ha->isp_ops->disable_intrs(ha);
2346         }
2347
2348         qla2x00_free_irqs(vha);
2349
2350         qla2x00_free_fw_dump(ha);
2351 }
2352
2353 static void
2354 qla2x00_remove_one(struct pci_dev *pdev)
2355 {
2356         scsi_qla_host_t *base_vha, *vha;
2357         struct qla_hw_data  *ha;
2358         unsigned long flags;
2359
2360         base_vha = pci_get_drvdata(pdev);
2361         ha = base_vha->hw;
2362
2363         mutex_lock(&ha->vport_lock);
2364         while (ha->cur_vport_count) {
2365                 struct Scsi_Host *scsi_host;
2366
2367                 spin_lock_irqsave(&ha->vport_slock, flags);
2368
2369                 BUG_ON(base_vha->list.next == &ha->vp_list);
2370                 /* This assumes first entry in ha->vp_list is always base vha */
2371                 vha = list_first_entry(&base_vha->list, scsi_qla_host_t, list);
2372                 scsi_host = scsi_host_get(vha->host);
2373
2374                 spin_unlock_irqrestore(&ha->vport_slock, flags);
2375                 mutex_unlock(&ha->vport_lock);
2376
2377                 fc_vport_terminate(vha->fc_vport);
2378                 scsi_host_put(vha->host);
2379
2380                 mutex_lock(&ha->vport_lock);
2381         }
2382         mutex_unlock(&ha->vport_lock);
2383
2384         set_bit(UNLOADING, &base_vha->dpc_flags);
2385
2386         qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
2387
2388         qla2x00_dfs_remove(base_vha);
2389
2390         qla84xx_put_chip(base_vha);
2391
2392         /* Disable timer */
2393         if (base_vha->timer_active)
2394                 qla2x00_stop_timer(base_vha);
2395
2396         base_vha->flags.online = 0;
2397
2398         /* Flush the work queue and remove it */
2399         if (ha->wq) {
2400                 flush_workqueue(ha->wq);
2401                 destroy_workqueue(ha->wq);
2402                 ha->wq = NULL;
2403         }
2404
2405         /* Kill the kernel thread for this host */
2406         if (ha->dpc_thread) {
2407                 struct task_struct *t = ha->dpc_thread;
2408
2409                 /*
2410                  * qla2xxx_wake_dpc checks for ->dpc_thread
2411                  * so we need to zero it out.
2412                  */
2413                 ha->dpc_thread = NULL;
2414                 kthread_stop(t);
2415         }
2416
2417         qla2x00_free_sysfs_attr(base_vha);
2418
2419         fc_remove_host(base_vha->host);
2420
2421         scsi_remove_host(base_vha->host);
2422
2423         qla2x00_free_device(base_vha);
2424
2425         scsi_host_put(base_vha->host);
2426
2427         if (IS_QLA82XX(ha)) {
2428                 qla82xx_idc_lock(ha);
2429                 qla82xx_clear_drv_active(ha);
2430                 qla82xx_idc_unlock(ha);
2431
2432                 iounmap((device_reg_t __iomem *)ha->nx_pcibase);
2433                 if (!ql2xdbwr)
2434                         iounmap((device_reg_t __iomem *)ha->nxdb_wr_ptr);
2435         } else {
2436                 if (ha->iobase)
2437                         iounmap(ha->iobase);
2438
2439                 if (ha->mqiobase)
2440                         iounmap(ha->mqiobase);
2441         }
2442
2443         pci_release_selected_regions(ha->pdev, ha->bars);
2444         kfree(ha);
2445         ha = NULL;
2446
2447         pci_disable_pcie_error_reporting(pdev);
2448
2449         pci_disable_device(pdev);
2450         pci_set_drvdata(pdev, NULL);
2451 }
2452
2453 static void
2454 qla2x00_free_device(scsi_qla_host_t *vha)
2455 {
2456         struct qla_hw_data *ha = vha->hw;
2457
2458         qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
2459
2460         /* Disable timer */
2461         if (vha->timer_active)
2462                 qla2x00_stop_timer(vha);
2463
2464         /* Kill the kernel thread for this host */
2465         if (ha->dpc_thread) {
2466                 struct task_struct *t = ha->dpc_thread;
2467
2468                 /*
2469                  * qla2xxx_wake_dpc checks for ->dpc_thread
2470                  * so we need to zero it out.
2471                  */
2472                 ha->dpc_thread = NULL;
2473                 kthread_stop(t);
2474         }
2475
2476         qla25xx_delete_queues(vha);
2477
2478         if (ha->flags.fce_enabled)
2479                 qla2x00_disable_fce_trace(vha, NULL, NULL);
2480
2481         if (ha->eft)
2482                 qla2x00_disable_eft_trace(vha);
2483
2484         /* Stop currently executing firmware. */
2485         qla2x00_try_to_stop_firmware(vha);
2486
2487         vha->flags.online = 0;
2488
2489         /* turn-off interrupts on the card */
2490         if (ha->interrupts_on) {
2491                 vha->flags.init_done = 0;
2492                 ha->isp_ops->disable_intrs(ha);
2493         }
2494
2495         qla2x00_free_irqs(vha);
2496
2497         qla2x00_free_fcports(vha);
2498
2499         qla2x00_mem_free(ha);
2500
2501         qla2x00_free_queues(ha);
2502 }
2503
2504 void qla2x00_free_fcports(struct scsi_qla_host *vha)
2505 {
2506         fc_port_t *fcport, *tfcport;
2507
2508         list_for_each_entry_safe(fcport, tfcport, &vha->vp_fcports, list) {
2509                 list_del(&fcport->list);
2510                 kfree(fcport);
2511                 fcport = NULL;
2512         }
2513 }
2514
2515 static inline void
2516 qla2x00_schedule_rport_del(struct scsi_qla_host *vha, fc_port_t *fcport,
2517     int defer)
2518 {
2519         struct fc_rport *rport;
2520         scsi_qla_host_t *base_vha;
2521         unsigned long flags;
2522
2523         if (!fcport->rport)
2524                 return;
2525
2526         rport = fcport->rport;
2527         if (defer) {
2528                 base_vha = pci_get_drvdata(vha->hw->pdev);
2529                 spin_lock_irqsave(vha->host->host_lock, flags);
2530                 fcport->drport = rport;
2531                 spin_unlock_irqrestore(vha->host->host_lock, flags);
2532                 set_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
2533                 qla2xxx_wake_dpc(base_vha);
2534         } else
2535                 fc_remote_port_delete(rport);
2536 }
2537
2538 /*
2539  * qla2x00_mark_device_lost Updates fcport state when device goes offline.
2540  *
2541  * Input: ha = adapter block pointer.  fcport = port structure pointer.
2542  *
2543  * Return: None.
2544  *
2545  * Context:
2546  */
2547 void qla2x00_mark_device_lost(scsi_qla_host_t *vha, fc_port_t *fcport,
2548     int do_login, int defer)
2549 {
2550         if (atomic_read(&fcport->state) == FCS_ONLINE &&
2551             vha->vp_idx == fcport->vp_idx) {
2552                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2553                 qla2x00_schedule_rport_del(vha, fcport, defer);
2554         }
2555         /*
2556          * We may need to retry the login, so don't change the state of the
2557          * port but do the retries.
2558          */
2559         if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
2560                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2561
2562         if (!do_login)
2563                 return;
2564
2565         if (fcport->login_retry == 0) {
2566                 fcport->login_retry = vha->hw->login_retry_count;
2567                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2568
2569                 DEBUG(printk("scsi(%ld): Port login retry: "
2570                     "%02x%02x%02x%02x%02x%02x%02x%02x, "
2571                     "id = 0x%04x retry cnt=%d\n",
2572                     vha->host_no,
2573                     fcport->port_name[0],
2574                     fcport->port_name[1],
2575                     fcport->port_name[2],
2576                     fcport->port_name[3],
2577                     fcport->port_name[4],
2578                     fcport->port_name[5],
2579                     fcport->port_name[6],
2580                     fcport->port_name[7],
2581                     fcport->loop_id,
2582                     fcport->login_retry));
2583         }
2584 }
2585
2586 /*
2587  * qla2x00_mark_all_devices_lost
2588  *      Updates fcport state when device goes offline.
2589  *
2590  * Input:
2591  *      ha = adapter block pointer.
2592  *      fcport = port structure pointer.
2593  *
2594  * Return:
2595  *      None.
2596  *
2597  * Context:
2598  */
2599 void
2600 qla2x00_mark_all_devices_lost(scsi_qla_host_t *vha, int defer)
2601 {
2602         fc_port_t *fcport;
2603
2604         list_for_each_entry(fcport, &vha->vp_fcports, list) {
2605                 if (vha->vp_idx != 0 && vha->vp_idx != fcport->vp_idx)
2606                         continue;
2607
2608                 /*
2609                  * No point in marking the device as lost, if the device is
2610                  * already DEAD.
2611                  */
2612                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
2613                         continue;
2614                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
2615                         atomic_set(&fcport->state, FCS_DEVICE_LOST);
2616                         if (defer)
2617                                 qla2x00_schedule_rport_del(vha, fcport, defer);
2618                         else if (vha->vp_idx == fcport->vp_idx)
2619                                 qla2x00_schedule_rport_del(vha, fcport, defer);
2620                 }
2621         }
2622 }
2623
2624 /*
2625 * qla2x00_mem_alloc
2626 *      Allocates adapter memory.
2627 *
2628 * Returns:
2629 *      0  = success.
2630 *      !0  = failure.
2631 */
2632 static int
2633 qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
2634         struct req_que **req, struct rsp_que **rsp)
2635 {
2636         char    name[16];
2637
2638         ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
2639                 &ha->init_cb_dma, GFP_KERNEL);
2640         if (!ha->init_cb)
2641                 goto fail;
2642
2643         ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
2644                 &ha->gid_list_dma, GFP_KERNEL);
2645         if (!ha->gid_list)
2646                 goto fail_free_init_cb;
2647
2648         ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
2649         if (!ha->srb_mempool)
2650                 goto fail_free_gid_list;
2651
2652         if (IS_QLA82XX(ha)) {
2653                 /* Allocate cache for CT6 Ctx. */
2654                 if (!ctx_cachep) {
2655                         ctx_cachep = kmem_cache_create("qla2xxx_ctx",
2656                                 sizeof(struct ct6_dsd), 0,
2657                                 SLAB_HWCACHE_ALIGN, NULL);
2658                         if (!ctx_cachep)
2659                                 goto fail_free_gid_list;
2660                 }
2661                 ha->ctx_mempool = mempool_create_slab_pool(SRB_MIN_REQ,
2662                         ctx_cachep);
2663                 if (!ha->ctx_mempool)
2664                         goto fail_free_srb_mempool;
2665         }
2666
2667         /* Get memory for cached NVRAM */
2668         ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
2669         if (!ha->nvram)
2670                 goto fail_free_ctx_mempool;
2671
2672         snprintf(name, sizeof(name), "%s_%d", QLA2XXX_DRIVER_NAME,
2673                 ha->pdev->device);
2674         ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2675                 DMA_POOL_SIZE, 8, 0);
2676         if (!ha->s_dma_pool)
2677                 goto fail_free_nvram;
2678
2679         if (IS_QLA82XX(ha) || ql2xenabledif) {
2680                 ha->dl_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2681                         DSD_LIST_DMA_POOL_SIZE, 8, 0);
2682                 if (!ha->dl_dma_pool) {
2683                         qla_printk(KERN_WARNING, ha,
2684                             "Memory Allocation failed - dl_dma_pool\n");
2685                         goto fail_s_dma_pool;
2686                 }
2687
2688                 ha->fcp_cmnd_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2689                         FCP_CMND_DMA_POOL_SIZE, 8, 0);
2690                 if (!ha->fcp_cmnd_dma_pool) {
2691                         qla_printk(KERN_WARNING, ha,
2692                             "Memory Allocation failed - fcp_cmnd_dma_pool\n");
2693                         goto fail_dl_dma_pool;
2694                 }
2695         }
2696
2697         /* Allocate memory for SNS commands */
2698         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2699         /* Get consistent memory allocated for SNS commands */
2700                 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
2701                 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
2702                 if (!ha->sns_cmd)
2703                         goto fail_dma_pool;
2704         } else {
2705         /* Get consistent memory allocated for MS IOCB */
2706                 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2707                         &ha->ms_iocb_dma);
2708                 if (!ha->ms_iocb)
2709                         goto fail_dma_pool;
2710         /* Get consistent memory allocated for CT SNS commands */
2711                 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2712                         sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
2713                 if (!ha->ct_sns)
2714                         goto fail_free_ms_iocb;
2715         }
2716
2717         /* Allocate memory for request ring */
2718         *req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
2719         if (!*req) {
2720                 DEBUG(printk("Unable to allocate memory for req\n"));
2721                 goto fail_req;
2722         }
2723         (*req)->length = req_len;
2724         (*req)->ring = dma_alloc_coherent(&ha->pdev->dev,
2725                 ((*req)->length + 1) * sizeof(request_t),
2726                 &(*req)->dma, GFP_KERNEL);
2727         if (!(*req)->ring) {
2728                 DEBUG(printk("Unable to allocate memory for req_ring\n"));
2729                 goto fail_req_ring;
2730         }
2731         /* Allocate memory for response ring */
2732         *rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
2733         if (!*rsp) {
2734                 qla_printk(KERN_WARNING, ha,
2735                         "Unable to allocate memory for rsp\n");
2736                 goto fail_rsp;
2737         }
2738         (*rsp)->hw = ha;
2739         (*rsp)->length = rsp_len;
2740         (*rsp)->ring = dma_alloc_coherent(&ha->pdev->dev,
2741                 ((*rsp)->length + 1) * sizeof(response_t),
2742                 &(*rsp)->dma, GFP_KERNEL);
2743         if (!(*rsp)->ring) {
2744                 qla_printk(KERN_WARNING, ha,
2745                         "Unable to allocate memory for rsp_ring\n");
2746                 goto fail_rsp_ring;
2747         }
2748         (*req)->rsp = *rsp;
2749         (*rsp)->req = *req;
2750         /* Allocate memory for NVRAM data for vports */
2751         if (ha->nvram_npiv_size) {
2752                 ha->npiv_info = kzalloc(sizeof(struct qla_npiv_entry) *
2753                                         ha->nvram_npiv_size, GFP_KERNEL);
2754                 if (!ha->npiv_info) {
2755                         qla_printk(KERN_WARNING, ha,
2756                                 "Unable to allocate memory for npiv info\n");
2757                         goto fail_npiv_info;
2758                 }
2759         } else
2760                 ha->npiv_info = NULL;
2761
2762         /* Get consistent memory allocated for EX-INIT-CB. */
2763         if (IS_QLA8XXX_TYPE(ha)) {
2764                 ha->ex_init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2765                     &ha->ex_init_cb_dma);
2766                 if (!ha->ex_init_cb)
2767                         goto fail_ex_init_cb;
2768         }
2769
2770         INIT_LIST_HEAD(&ha->gbl_dsd_list);
2771
2772         /* Get consistent memory allocated for Async Port-Database. */
2773         if (!IS_FWI2_CAPABLE(ha)) {
2774                 ha->async_pd = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2775                         &ha->async_pd_dma);
2776                 if (!ha->async_pd)
2777                         goto fail_async_pd;
2778         }
2779
2780         INIT_LIST_HEAD(&ha->vp_list);
2781         return 1;
2782
2783 fail_async_pd:
2784         dma_pool_free(ha->s_dma_pool, ha->ex_init_cb, ha->ex_init_cb_dma);
2785 fail_ex_init_cb:
2786         kfree(ha->npiv_info);
2787 fail_npiv_info:
2788         dma_free_coherent(&ha->pdev->dev, ((*rsp)->length + 1) *
2789                 sizeof(response_t), (*rsp)->ring, (*rsp)->dma);
2790         (*rsp)->ring = NULL;
2791         (*rsp)->dma = 0;
2792 fail_rsp_ring:
2793         kfree(*rsp);
2794 fail_rsp:
2795         dma_free_coherent(&ha->pdev->dev, ((*req)->length + 1) *
2796                 sizeof(request_t), (*req)->ring, (*req)->dma);
2797         (*req)->ring = NULL;
2798         (*req)->dma = 0;
2799 fail_req_ring:
2800         kfree(*req);
2801 fail_req:
2802         dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2803                 ha->ct_sns, ha->ct_sns_dma);
2804         ha->ct_sns = NULL;
2805         ha->ct_sns_dma = 0;
2806 fail_free_ms_iocb:
2807         dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2808         ha->ms_iocb = NULL;
2809         ha->ms_iocb_dma = 0;
2810 fail_dma_pool:
2811         if (IS_QLA82XX(ha) || ql2xenabledif) {
2812                 dma_pool_destroy(ha->fcp_cmnd_dma_pool);
2813                 ha->fcp_cmnd_dma_pool = NULL;
2814         }
2815 fail_dl_dma_pool:
2816         if (IS_QLA82XX(ha) || ql2xenabledif) {
2817                 dma_pool_destroy(ha->dl_dma_pool);
2818                 ha->dl_dma_pool = NULL;
2819         }
2820 fail_s_dma_pool:
2821         dma_pool_destroy(ha->s_dma_pool);
2822         ha->s_dma_pool = NULL;
2823 fail_free_nvram:
2824         kfree(ha->nvram);
2825         ha->nvram = NULL;
2826 fail_free_ctx_mempool:
2827         mempool_destroy(ha->ctx_mempool);
2828         ha->ctx_mempool = NULL;
2829 fail_free_srb_mempool:
2830         mempool_destroy(ha->srb_mempool);
2831         ha->srb_mempool = NULL;
2832 fail_free_gid_list:
2833         dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2834         ha->gid_list_dma);
2835         ha->gid_list = NULL;
2836         ha->gid_list_dma = 0;
2837 fail_free_init_cb:
2838         dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
2839         ha->init_cb_dma);
2840         ha->init_cb = NULL;
2841         ha->init_cb_dma = 0;
2842 fail:
2843         DEBUG(printk("%s: Memory allocation failure\n", __func__));
2844         return -ENOMEM;
2845 }
2846
2847 /*
2848 * qla2x00_free_fw_dump
2849 *       Frees fw dump stuff.
2850 *
2851 * Input:
2852 *       ha = adapter block pointer.
2853 */
2854 static void
2855 qla2x00_free_fw_dump(struct qla_hw_data *ha)
2856 {
2857         if (ha->fce)
2858                 dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
2859                     ha->fce_dma);
2860
2861         if (ha->fw_dump) {
2862                 if (ha->eft)
2863                         dma_free_coherent(&ha->pdev->dev,
2864                             ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2865                 vfree(ha->fw_dump);
2866         }
2867         ha->fce = NULL;
2868         ha->fce_dma = 0;
2869         ha->eft = NULL;
2870         ha->eft_dma = 0;
2871         ha->fw_dump = NULL;
2872         ha->fw_dumped = 0;
2873         ha->fw_dump_reading = 0;
2874 }
2875
2876 /*
2877 * qla2x00_mem_free
2878 *      Frees all adapter allocated memory.
2879 *
2880 * Input:
2881 *      ha = adapter block pointer.
2882 */
2883 static void
2884 qla2x00_mem_free(struct qla_hw_data *ha)
2885 {
2886         qla2x00_free_fw_dump(ha);
2887
2888         if (ha->srb_mempool)
2889                 mempool_destroy(ha->srb_mempool);
2890
2891         if (ha->dcbx_tlv)
2892                 dma_free_coherent(&ha->pdev->dev, DCBX_TLV_DATA_SIZE,
2893                     ha->dcbx_tlv, ha->dcbx_tlv_dma);
2894
2895         if (ha->xgmac_data)
2896                 dma_free_coherent(&ha->pdev->dev, XGMAC_DATA_SIZE,
2897                     ha->xgmac_data, ha->xgmac_data_dma);
2898
2899         if (ha->sns_cmd)
2900                 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2901                 ha->sns_cmd, ha->sns_cmd_dma);
2902
2903         if (ha->ct_sns)
2904                 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2905                 ha->ct_sns, ha->ct_sns_dma);
2906
2907         if (ha->sfp_data)
2908                 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2909
2910         if (ha->edc_data)
2911                 dma_pool_free(ha->s_dma_pool, ha->edc_data, ha->edc_data_dma);
2912
2913         if (ha->ms_iocb)
2914                 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2915
2916         if (ha->ex_init_cb)
2917                 dma_pool_free(ha->s_dma_pool,
2918                         ha->ex_init_cb, ha->ex_init_cb_dma);
2919
2920         if (ha->async_pd)
2921                 dma_pool_free(ha->s_dma_pool, ha->async_pd, ha->async_pd_dma);
2922
2923         if (ha->s_dma_pool)
2924                 dma_pool_destroy(ha->s_dma_pool);
2925
2926         if (ha->gid_list)
2927                 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2928                 ha->gid_list_dma);
2929
2930         if (IS_QLA82XX(ha)) {
2931                 if (!list_empty(&ha->gbl_dsd_list)) {
2932                         struct dsd_dma *dsd_ptr, *tdsd_ptr;
2933
2934                         /* clean up allocated prev pool */
2935                         list_for_each_entry_safe(dsd_ptr,
2936                                 tdsd_ptr, &ha->gbl_dsd_list, list) {
2937                                 dma_pool_free(ha->dl_dma_pool,
2938                                 dsd_ptr->dsd_addr, dsd_ptr->dsd_list_dma);
2939                                 list_del(&dsd_ptr->list);
2940                                 kfree(dsd_ptr);
2941                         }
2942                 }
2943         }
2944
2945         if (ha->dl_dma_pool)
2946                 dma_pool_destroy(ha->dl_dma_pool);
2947
2948         if (ha->fcp_cmnd_dma_pool)
2949                 dma_pool_destroy(ha->fcp_cmnd_dma_pool);
2950
2951         if (ha->ctx_mempool)
2952                 mempool_destroy(ha->ctx_mempool);
2953
2954         if (ha->init_cb)
2955                 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
2956                         ha->init_cb, ha->init_cb_dma);
2957         vfree(ha->optrom_buffer);
2958         kfree(ha->nvram);
2959         kfree(ha->npiv_info);
2960
2961         ha->srb_mempool = NULL;
2962         ha->ctx_mempool = NULL;
2963         ha->sns_cmd = NULL;
2964         ha->sns_cmd_dma = 0;
2965         ha->ct_sns = NULL;
2966         ha->ct_sns_dma = 0;
2967         ha->ms_iocb = NULL;
2968         ha->ms_iocb_dma = 0;
2969         ha->init_cb = NULL;
2970         ha->init_cb_dma = 0;
2971         ha->ex_init_cb = NULL;
2972         ha->ex_init_cb_dma = 0;
2973         ha->async_pd = NULL;
2974         ha->async_pd_dma = 0;
2975
2976         ha->s_dma_pool = NULL;
2977         ha->dl_dma_pool = NULL;
2978         ha->fcp_cmnd_dma_pool = NULL;
2979
2980         ha->gid_list = NULL;
2981         ha->gid_list_dma = 0;
2982 }
2983
2984 struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht,
2985                                                 struct qla_hw_data *ha)
2986 {
2987         struct Scsi_Host *host;
2988         struct scsi_qla_host *vha = NULL;
2989
2990         host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
2991         if (host == NULL) {
2992                 printk(KERN_WARNING
2993                 "qla2xxx: Couldn't allocate host from scsi layer!\n");
2994                 goto fail;
2995         }
2996
2997         /* Clear our data area */
2998         vha = shost_priv(host);
2999         memset(vha, 0, sizeof(scsi_qla_host_t));
3000
3001         vha->host = host;
3002         vha->host_no = host->host_no;
3003         vha->hw = ha;
3004
3005         INIT_LIST_HEAD(&vha->vp_fcports);
3006         INIT_LIST_HEAD(&vha->work_list);
3007         INIT_LIST_HEAD(&vha->list);
3008
3009         spin_lock_init(&vha->work_lock);
3010
3011         sprintf(vha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, vha->host_no);
3012         return vha;
3013
3014 fail:
3015         return vha;
3016 }
3017
3018 static struct qla_work_evt *
3019 qla2x00_alloc_work(struct scsi_qla_host *vha, enum qla_work_type type)
3020 {
3021         struct qla_work_evt *e;
3022         uint8_t bail;
3023
3024         QLA_VHA_MARK_BUSY(vha, bail);
3025         if (bail)
3026                 return NULL;
3027
3028         e = kzalloc(sizeof(struct qla_work_evt), GFP_ATOMIC);
3029         if (!e) {
3030                 QLA_VHA_MARK_NOT_BUSY(vha);
3031                 return NULL;
3032         }
3033
3034         INIT_LIST_HEAD(&e->list);
3035         e->type = type;
3036         e->flags = QLA_EVT_FLAG_FREE;
3037         return e;
3038 }
3039
3040 static int
3041 qla2x00_post_work(struct scsi_qla_host *vha, struct qla_work_evt *e)
3042 {
3043         unsigned long flags;
3044
3045         spin_lock_irqsave(&vha->work_lock, flags);
3046         list_add_tail(&e->list, &vha->work_list);
3047         spin_unlock_irqrestore(&vha->work_lock, flags);
3048         qla2xxx_wake_dpc(vha);
3049
3050         return QLA_SUCCESS;
3051 }
3052
3053 int
3054 qla2x00_post_aen_work(struct scsi_qla_host *vha, enum fc_host_event_code code,
3055     u32 data)
3056 {
3057         struct qla_work_evt *e;
3058
3059         e = qla2x00_alloc_work(vha, QLA_EVT_AEN);
3060         if (!e)
3061                 return QLA_FUNCTION_FAILED;
3062
3063         e->u.aen.code = code;
3064         e->u.aen.data = data;
3065         return qla2x00_post_work(vha, e);
3066 }
3067
3068 int
3069 qla2x00_post_idc_ack_work(struct scsi_qla_host *vha, uint16_t *mb)
3070 {
3071         struct qla_work_evt *e;
3072
3073         e = qla2x00_alloc_work(vha, QLA_EVT_IDC_ACK);
3074         if (!e)
3075                 return QLA_FUNCTION_FAILED;
3076
3077         memcpy(e->u.idc_ack.mb, mb, QLA_IDC_ACK_REGS * sizeof(uint16_t));
3078         return qla2x00_post_work(vha, e);
3079 }
3080
3081 #define qla2x00_post_async_work(name, type)     \
3082 int qla2x00_post_async_##name##_work(           \
3083     struct scsi_qla_host *vha,                  \
3084     fc_port_t *fcport, uint16_t *data)          \
3085 {                                               \
3086         struct qla_work_evt *e;                 \
3087                                                 \
3088         e = qla2x00_alloc_work(vha, type);      \
3089         if (!e)                                 \
3090                 return QLA_FUNCTION_FAILED;     \
3091                                                 \
3092         e->u.logio.fcport = fcport;             \
3093         if (data) {                             \
3094                 e->u.logio.data[0] = data[0];   \
3095                 e->u.logio.data[1] = data[1];   \
3096         }                                       \
3097         return qla2x00_post_work(vha, e);       \
3098 }
3099
3100 qla2x00_post_async_work(login, QLA_EVT_ASYNC_LOGIN);
3101 qla2x00_post_async_work(login_done, QLA_EVT_ASYNC_LOGIN_DONE);
3102 qla2x00_post_async_work(logout, QLA_EVT_ASYNC_LOGOUT);
3103 qla2x00_post_async_work(logout_done, QLA_EVT_ASYNC_LOGOUT_DONE);
3104 qla2x00_post_async_work(adisc, QLA_EVT_ASYNC_ADISC);
3105 qla2x00_post_async_work(adisc_done, QLA_EVT_ASYNC_ADISC_DONE);
3106
3107 int
3108 qla2x00_post_uevent_work(struct scsi_qla_host *vha, u32 code)
3109 {
3110         struct qla_work_evt *e;
3111
3112         e = qla2x00_alloc_work(vha, QLA_EVT_UEVENT);
3113         if (!e)
3114                 return QLA_FUNCTION_FAILED;
3115
3116         e->u.uevent.code = code;
3117         return qla2x00_post_work(vha, e);
3118 }
3119
3120 static void
3121 qla2x00_uevent_emit(struct scsi_qla_host *vha, u32 code)
3122 {
3123         char event_string[40];
3124         char *envp[] = { event_string, NULL };
3125
3126         switch (code) {
3127         case QLA_UEVENT_CODE_FW_DUMP:
3128                 snprintf(event_string, sizeof(event_string), "FW_DUMP=%ld",
3129                     vha->host_no);
3130                 break;
3131         default:
3132                 /* do nothing */
3133                 break;
3134         }
3135         kobject_uevent_env(&vha->hw->pdev->dev.kobj, KOBJ_CHANGE, envp);
3136 }
3137
3138 void
3139 qla2x00_do_work(struct scsi_qla_host *vha)
3140 {
3141         struct qla_work_evt *e, *tmp;
3142         unsigned long flags;
3143         LIST_HEAD(work);
3144
3145         spin_lock_irqsave(&vha->work_lock, flags);
3146         list_splice_init(&vha->work_list, &work);
3147         spin_unlock_irqrestore(&vha->work_lock, flags);
3148
3149         list_for_each_entry_safe(e, tmp, &work, list) {
3150                 list_del_init(&e->list);
3151
3152                 switch (e->type) {
3153                 case QLA_EVT_AEN:
3154                         fc_host_post_event(vha->host, fc_get_event_number(),
3155                             e->u.aen.code, e->u.aen.data);
3156                         break;
3157                 case QLA_EVT_IDC_ACK:
3158                         qla81xx_idc_ack(vha, e->u.idc_ack.mb);
3159                         break;
3160                 case QLA_EVT_ASYNC_LOGIN:
3161                         qla2x00_async_login(vha, e->u.logio.fcport,
3162                             e->u.logio.data);
3163                         break;
3164                 case QLA_EVT_ASYNC_LOGIN_DONE:
3165                         qla2x00_async_login_done(vha, e->u.logio.fcport,
3166                             e->u.logio.data);
3167                         break;
3168                 case QLA_EVT_ASYNC_LOGOUT:
3169                         qla2x00_async_logout(vha, e->u.logio.fcport);
3170                         break;
3171                 case QLA_EVT_ASYNC_LOGOUT_DONE:
3172                         qla2x00_async_logout_done(vha, e->u.logio.fcport,
3173                             e->u.logio.data);
3174                         break;
3175                 case QLA_EVT_ASYNC_ADISC:
3176                         qla2x00_async_adisc(vha, e->u.logio.fcport,
3177                             e->u.logio.data);
3178                         break;
3179                 case QLA_EVT_ASYNC_ADISC_DONE:
3180                         qla2x00_async_adisc_done(vha, e->u.logio.fcport,
3181                             e->u.logio.data);
3182                         break;
3183                 case QLA_EVT_UEVENT:
3184                         qla2x00_uevent_emit(vha, e->u.uevent.code);
3185                         break;
3186                 }
3187                 if (e->flags & QLA_EVT_FLAG_FREE)
3188                         kfree(e);
3189
3190                 /* For each work completed decrement vha ref count */
3191                 QLA_VHA_MARK_NOT_BUSY(vha);
3192         }
3193 }
3194
3195 /* Relogins all the fcports of a vport
3196  * Context: dpc thread
3197  */
3198 void qla2x00_relogin(struct scsi_qla_host *vha)
3199 {
3200         fc_port_t       *fcport;
3201         int status;
3202         uint16_t        next_loopid = 0;
3203         struct qla_hw_data *ha = vha->hw;
3204         uint16_t data[2];
3205
3206         list_for_each_entry(fcport, &vha->vp_fcports, list) {
3207         /*
3208          * If the port is not ONLINE then try to login
3209          * to it if we haven't run out of retries.
3210          */
3211                 if (atomic_read(&fcport->state) != FCS_ONLINE &&
3212                     fcport->login_retry && !(fcport->flags & FCF_ASYNC_SENT)) {
3213                         fcport->login_retry--;
3214                         if (fcport->flags & FCF_FABRIC_DEVICE) {
3215                                 if (fcport->flags & FCF_FCP2_DEVICE)
3216                                         ha->isp_ops->fabric_logout(vha,
3217                                                         fcport->loop_id,
3218                                                         fcport->d_id.b.domain,
3219                                                         fcport->d_id.b.area,
3220                                                         fcport->d_id.b.al_pa);
3221
3222                                 if (IS_ALOGIO_CAPABLE(ha)) {
3223                                         fcport->flags |= FCF_ASYNC_SENT;
3224                                         data[0] = 0;
3225                                         data[1] = QLA_LOGIO_LOGIN_RETRIED;
3226                                         status = qla2x00_post_async_login_work(
3227                                             vha, fcport, data);
3228                                         if (status == QLA_SUCCESS)
3229                                                 continue;
3230                                         /* Attempt a retry. */
3231                                         status = 1;
3232                                 } else
3233                                         status = qla2x00_fabric_login(vha,
3234                                             fcport, &next_loopid);
3235                         } else
3236                                 status = qla2x00_local_device_login(vha,
3237                                                                 fcport);
3238
3239                         if (status == QLA_SUCCESS) {
3240                                 fcport->old_loop_id = fcport->loop_id;
3241
3242                                 DEBUG(printk("scsi(%ld): port login OK: logged "
3243                                 "in ID 0x%x\n", vha->host_no, fcport->loop_id));
3244
3245                                 qla2x00_update_fcport(vha, fcport);
3246
3247                         } else if (status == 1) {
3248                                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
3249                                 /* retry the login again */
3250                                 DEBUG(printk("scsi(%ld): Retrying"
3251                                 " %d login again loop_id 0x%x\n",
3252                                 vha->host_no, fcport->login_retry,
3253                                                 fcport->loop_id));
3254                         } else {
3255                                 fcport->login_retry = 0;
3256                         }
3257
3258                         if (fcport->login_retry == 0 && status != QLA_SUCCESS)
3259                                 fcport->loop_id = FC_NO_LOOP_ID;
3260                 }
3261                 if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
3262                         break;
3263         }
3264 }
3265
3266 /**************************************************************************
3267 * qla2x00_do_dpc
3268 *   This kernel thread is a task that is schedule by the interrupt handler
3269 *   to perform the background processing for interrupts.
3270 *
3271 * Notes:
3272 * This task always run in the context of a kernel thread.  It
3273 * is kick-off by the driver's detect code and starts up
3274 * up one per adapter. It immediately goes to sleep and waits for
3275 * some fibre event.  When either the interrupt handler or
3276 * the timer routine detects a event it will one of the task
3277 * bits then wake us up.
3278 **************************************************************************/
3279 static int
3280 qla2x00_do_dpc(void *data)
3281 {
3282         int             rval;
3283         scsi_qla_host_t *base_vha;
3284         struct qla_hw_data *ha;
3285
3286         ha = (struct qla_hw_data *)data;
3287         base_vha = pci_get_drvdata(ha->pdev);
3288
3289         set_user_nice(current, -20);
3290
3291         set_current_state(TASK_INTERRUPTIBLE);
3292         while (!kthread_should_stop()) {
3293                 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
3294
3295                 schedule();
3296                 __set_current_state(TASK_RUNNING);
3297
3298                 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
3299
3300                 /* Initialization not yet finished. Don't do anything yet. */
3301                 if (!base_vha->flags.init_done)
3302                         continue;
3303
3304                 if (ha->flags.eeh_busy) {
3305                         DEBUG17(qla_printk(KERN_WARNING, ha,
3306                             "qla2x00_do_dpc: dpc_flags: %lx\n",
3307                             base_vha->dpc_flags));
3308                         continue;
3309                 }
3310
3311                 DEBUG3(printk("scsi(%ld): DPC handler\n", base_vha->host_no));
3312
3313                 ha->dpc_active = 1;
3314
3315                 if (ha->flags.mbox_busy) {
3316                         ha->dpc_active = 0;
3317                         continue;
3318                 }
3319
3320                 qla2x00_do_work(base_vha);
3321
3322                 if (IS_QLA82XX(ha)) {
3323                         if (test_and_clear_bit(ISP_UNRECOVERABLE,
3324                                 &base_vha->dpc_flags)) {
3325                                 qla82xx_idc_lock(ha);
3326                                 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3327                                         QLA82XX_DEV_FAILED);
3328                                 qla82xx_idc_unlock(ha);
3329                                 qla_printk(KERN_INFO, ha,
3330                                         "HW State: FAILED\n");
3331                                 qla82xx_device_state_handler(base_vha);
3332                                 continue;
3333                         }
3334
3335                         if (test_and_clear_bit(FCOE_CTX_RESET_NEEDED,
3336                                 &base_vha->dpc_flags)) {
3337
3338                                 DEBUG(printk(KERN_INFO
3339                                         "scsi(%ld): dpc: sched "
3340                                         "qla82xx_fcoe_ctx_reset ha = %p\n",
3341                                         base_vha->host_no, ha));
3342                                 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
3343                                         &base_vha->dpc_flags))) {
3344                                         if (qla82xx_fcoe_ctx_reset(base_vha)) {
3345                                                 /* FCoE-ctx reset failed.
3346                                                  * Escalate to chip-reset
3347                                                  */
3348                                                 set_bit(ISP_ABORT_NEEDED,
3349                                                         &base_vha->dpc_flags);
3350                                         }
3351                                         clear_bit(ABORT_ISP_ACTIVE,
3352                                                 &base_vha->dpc_flags);
3353                                 }
3354
3355                                 DEBUG(printk("scsi(%ld): dpc:"
3356                                         " qla82xx_fcoe_ctx_reset end\n",
3357                                         base_vha->host_no));
3358                         }
3359                 }
3360
3361                 if (test_and_clear_bit(ISP_ABORT_NEEDED,
3362                                                 &base_vha->dpc_flags)) {
3363
3364                         DEBUG(printk("scsi(%ld): dpc: sched "
3365                             "qla2x00_abort_isp ha = %p\n",
3366                             base_vha->host_no, ha));
3367                         if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
3368                             &base_vha->dpc_flags))) {
3369
3370                                 if (ha->isp_ops->abort_isp(base_vha)) {
3371                                         /* failed. retry later */
3372                                         set_bit(ISP_ABORT_NEEDED,
3373                                             &base_vha->dpc_flags);
3374                                 }
3375                                 clear_bit(ABORT_ISP_ACTIVE,
3376                                                 &base_vha->dpc_flags);
3377                         }
3378
3379                         DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
3380                             base_vha->host_no));
3381                 }
3382
3383                 if (test_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags)) {
3384                         qla2x00_update_fcports(base_vha);
3385                         clear_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
3386                 }
3387
3388                 if (test_bit(ISP_QUIESCE_NEEDED, &base_vha->dpc_flags)) {
3389                         DEBUG(printk(KERN_INFO "scsi(%ld): dpc: sched "
3390                             "qla2x00_quiesce_needed ha = %p\n",
3391                             base_vha->host_no, ha));
3392                         qla82xx_device_state_handler(base_vha);
3393                         clear_bit(ISP_QUIESCE_NEEDED, &base_vha->dpc_flags);
3394                         if (!ha->flags.quiesce_owner) {
3395                                 qla2x00_perform_loop_resync(base_vha);
3396
3397                                 qla82xx_idc_lock(ha);
3398                                 qla82xx_clear_qsnt_ready(base_vha);
3399                                 qla82xx_idc_unlock(ha);
3400                         }
3401                 }
3402
3403                 if (test_and_clear_bit(RESET_MARKER_NEEDED,
3404                                                         &base_vha->dpc_flags) &&
3405                     (!(test_and_set_bit(RESET_ACTIVE, &base_vha->dpc_flags)))) {
3406
3407                         DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
3408                             base_vha->host_no));
3409
3410                         qla2x00_rst_aen(base_vha);
3411                         clear_bit(RESET_ACTIVE, &base_vha->dpc_flags);
3412                 }
3413
3414                 /* Retry each device up to login retry count */
3415                 if ((test_and_clear_bit(RELOGIN_NEEDED,
3416                                                 &base_vha->dpc_flags)) &&
3417                     !test_bit(LOOP_RESYNC_NEEDED, &base_vha->dpc_flags) &&
3418                     atomic_read(&base_vha->loop_state) != LOOP_DOWN) {
3419
3420                         DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
3421                                         base_vha->host_no));
3422                         qla2x00_relogin(base_vha);
3423
3424                         DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
3425                             base_vha->host_no));
3426                 }
3427
3428                 if (test_and_clear_bit(LOOP_RESYNC_NEEDED,
3429                                                         &base_vha->dpc_flags)) {
3430
3431                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
3432                                 base_vha->host_no));
3433
3434                         if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
3435                             &base_vha->dpc_flags))) {
3436
3437                                 rval = qla2x00_loop_resync(base_vha);
3438
3439                                 clear_bit(LOOP_RESYNC_ACTIVE,
3440                                                 &base_vha->dpc_flags);
3441                         }
3442
3443                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
3444                             base_vha->host_no));
3445                 }
3446
3447                 if (test_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags) &&
3448                     atomic_read(&base_vha->loop_state) == LOOP_READY) {
3449                         clear_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags);
3450                         qla2xxx_flash_npiv_conf(base_vha);
3451                 }
3452
3453                 if (!ha->interrupts_on)
3454                         ha->isp_ops->enable_intrs(ha);
3455
3456                 if (test_and_clear_bit(BEACON_BLINK_NEEDED,
3457                                         &base_vha->dpc_flags))
3458                         ha->isp_ops->beacon_blink(base_vha);
3459
3460                 qla2x00_do_dpc_all_vps(base_vha);
3461
3462                 ha->dpc_active = 0;
3463                 set_current_state(TASK_INTERRUPTIBLE);
3464         } /* End of while(1) */
3465         __set_current_state(TASK_RUNNING);
3466
3467         DEBUG(printk("scsi(%ld): DPC handler exiting\n", base_vha->host_no));
3468
3469         /*
3470          * Make sure that nobody tries to wake us up again.
3471          */
3472         ha->dpc_active = 0;
3473
3474         /* Cleanup any residual CTX SRBs. */
3475         qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
3476
3477         return 0;
3478 }
3479
3480 void
3481 qla2xxx_wake_dpc(struct scsi_qla_host *vha)
3482 {
3483         struct qla_hw_data *ha = vha->hw;
3484         struct task_struct *t = ha->dpc_thread;
3485
3486         if (!test_bit(UNLOADING, &vha->dpc_flags) && t)
3487                 wake_up_process(t);
3488 }
3489
3490 /*
3491 *  qla2x00_rst_aen
3492 *      Processes asynchronous reset.
3493 *
3494 * Input:
3495 *      ha  = adapter block pointer.
3496 */
3497 static void
3498 qla2x00_rst_aen(scsi_qla_host_t *vha)
3499 {
3500         if (vha->flags.online && !vha->flags.reset_active &&
3501             !atomic_read(&vha->loop_down_timer) &&
3502             !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) {
3503                 do {
3504                         clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
3505
3506                         /*
3507                          * Issue marker command only when we are going to start
3508                          * the I/O.
3509                          */
3510                         vha->marker_needed = 1;
3511                 } while (!atomic_read(&vha->loop_down_timer) &&
3512                     (test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags)));
3513         }
3514 }
3515
3516 static void
3517 qla2x00_sp_free_dma(srb_t *sp)
3518 {
3519         struct scsi_cmnd *cmd = sp->cmd;
3520         struct qla_hw_data *ha = sp->fcport->vha->hw;
3521
3522         if (sp->flags & SRB_DMA_VALID) {
3523                 scsi_dma_unmap(cmd);
3524                 sp->flags &= ~SRB_DMA_VALID;
3525         }
3526
3527         if (sp->flags & SRB_CRC_PROT_DMA_VALID) {
3528                 dma_unmap_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
3529                     scsi_prot_sg_count(cmd), cmd->sc_data_direction);
3530                 sp->flags &= ~SRB_CRC_PROT_DMA_VALID;
3531         }
3532
3533         if (sp->flags & SRB_CRC_CTX_DSD_VALID) {
3534                 /* List assured to be having elements */
3535                 qla2x00_clean_dsd_pool(ha, sp);
3536                 sp->flags &= ~SRB_CRC_CTX_DSD_VALID;
3537         }
3538
3539         if (sp->flags & SRB_CRC_CTX_DMA_VALID) {
3540                 dma_pool_free(ha->dl_dma_pool, sp->ctx,
3541                     ((struct crc_context *)sp->ctx)->crc_ctx_dma);
3542                 sp->flags &= ~SRB_CRC_CTX_DMA_VALID;
3543         }
3544
3545         CMD_SP(cmd) = NULL;
3546 }
3547
3548 static void
3549 qla2x00_sp_final_compl(struct qla_hw_data *ha, srb_t *sp)
3550 {
3551         struct scsi_cmnd *cmd = sp->cmd;
3552
3553         qla2x00_sp_free_dma(sp);
3554
3555         if (sp->flags & SRB_FCP_CMND_DMA_VALID) {
3556                 struct ct6_dsd *ctx = sp->ctx;
3557                 dma_pool_free(ha->fcp_cmnd_dma_pool, ctx->fcp_cmnd,
3558                         ctx->fcp_cmnd_dma);
3559                 list_splice(&ctx->dsd_list, &ha->gbl_dsd_list);
3560                 ha->gbl_dsd_inuse -= ctx->dsd_use_cnt;
3561                 ha->gbl_dsd_avail += ctx->dsd_use_cnt;
3562                 mempool_free(sp->ctx, ha->ctx_mempool);
3563                 sp->ctx = NULL;
3564         }
3565
3566         mempool_free(sp, ha->srb_mempool);
3567         cmd->scsi_done(cmd);
3568 }
3569
3570 void
3571 qla2x00_sp_compl(struct qla_hw_data *ha, srb_t *sp)
3572 {
3573         if (atomic_read(&sp->ref_count) == 0) {
3574                 DEBUG2(qla_printk(KERN_WARNING, ha,
3575                     "SP reference-count to ZERO -- sp=%p\n", sp));
3576                 DEBUG2(BUG());
3577                 return;
3578         }
3579         if (!atomic_dec_and_test(&sp->ref_count))
3580                 return;
3581         qla2x00_sp_final_compl(ha, sp);
3582 }
3583
3584 /**************************************************************************
3585 *   qla2x00_timer
3586 *
3587 * Description:
3588 *   One second timer
3589 *
3590 * Context: Interrupt
3591 ***************************************************************************/
3592 void
3593 qla2x00_timer(scsi_qla_host_t *vha)
3594 {
3595         unsigned long   cpu_flags = 0;
3596         int             start_dpc = 0;
3597         int             index;
3598         srb_t           *sp;
3599         uint16_t        w;
3600         struct qla_hw_data *ha = vha->hw;
3601         struct req_que *req;
3602
3603         if (ha->flags.eeh_busy) {
3604                 qla2x00_restart_timer(vha, WATCH_INTERVAL);
3605                 return;
3606         }
3607
3608         /* Hardware read to raise pending EEH errors during mailbox waits. */
3609         if (!pci_channel_offline(ha->pdev))
3610                 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
3611
3612         if (IS_QLA82XX(ha)) {
3613                 if (test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags))
3614                         start_dpc++;
3615                 qla82xx_watchdog(vha);
3616         }
3617
3618         /* Loop down handler. */
3619         if (atomic_read(&vha->loop_down_timer) > 0 &&
3620             !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
3621                 && vha->flags.online) {
3622
3623                 if (atomic_read(&vha->loop_down_timer) ==
3624                     vha->loop_down_abort_time) {
3625
3626                         DEBUG(printk("scsi(%ld): Loop Down - aborting the "
3627                             "queues before time expire\n",
3628                             vha->host_no));
3629
3630                         if (!IS_QLA2100(ha) && vha->link_down_timeout)
3631                                 atomic_set(&vha->loop_state, LOOP_DEAD);
3632
3633                         /*
3634                          * Schedule an ISP abort to return any FCP2-device
3635                          * commands.
3636                          */
3637                         /* NPIV - scan physical port only */
3638                         if (!vha->vp_idx) {
3639                                 spin_lock_irqsave(&ha->hardware_lock,
3640                                     cpu_flags);
3641                                 req = ha->req_q_map[0];
3642                                 for (index = 1;
3643                                     index < MAX_OUTSTANDING_COMMANDS;
3644                                     index++) {
3645                                         fc_port_t *sfcp;
3646
3647                                         sp = req->outstanding_cmds[index];
3648                                         if (!sp)
3649                                                 continue;
3650                                         if (sp->ctx && !IS_PROT_IO(sp))
3651                                                 continue;
3652                                         sfcp = sp->fcport;
3653                                         if (!(sfcp->flags & FCF_FCP2_DEVICE))
3654                                                 continue;
3655
3656                                         set_bit(ISP_ABORT_NEEDED,
3657                                                         &vha->dpc_flags);
3658                                         break;
3659                                 }
3660                                 spin_unlock_irqrestore(&ha->hardware_lock,
3661                                                                 cpu_flags);
3662                         }
3663                         start_dpc++;
3664                 }
3665
3666                 /* if the loop has been down for 4 minutes, reinit adapter */
3667                 if (atomic_dec_and_test(&vha->loop_down_timer) != 0) {
3668                         if (!(vha->device_flags & DFLG_NO_CABLE)) {
3669                                 DEBUG(printk("scsi(%ld): Loop down - "
3670                                     "aborting ISP.\n",
3671                                     vha->host_no));
3672                                 qla_printk(KERN_WARNING, ha,
3673                                     "Loop down - aborting ISP.\n");
3674
3675                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3676                         }
3677                 }
3678                 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
3679                     vha->host_no,
3680                     atomic_read(&vha->loop_down_timer)));
3681         }
3682
3683         /* Check if beacon LED needs to be blinked */
3684         if (ha->beacon_blink_led == 1) {
3685                 set_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags);
3686                 start_dpc++;
3687         }
3688
3689         /* Process any deferred work. */
3690         if (!list_empty(&vha->work_list))
3691                 start_dpc++;
3692
3693         /* Schedule the DPC routine if needed */
3694         if ((test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
3695             test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) ||
3696             test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags) ||
3697             start_dpc ||
3698             test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) ||
3699             test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags) ||
3700             test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags) ||
3701             test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) ||
3702             test_bit(VP_DPC_NEEDED, &vha->dpc_flags) ||
3703             test_bit(RELOGIN_NEEDED, &vha->dpc_flags)))
3704                 qla2xxx_wake_dpc(vha);
3705
3706         qla2x00_restart_timer(vha, WATCH_INTERVAL);
3707 }
3708
3709 /* Firmware interface routines. */
3710
3711 #define FW_BLOBS        8
3712 #define FW_ISP21XX      0
3713 #define FW_ISP22XX      1
3714 #define FW_ISP2300      2
3715 #define FW_ISP2322      3
3716 #define FW_ISP24XX      4
3717 #define FW_ISP25XX      5
3718 #define FW_ISP81XX      6
3719 #define FW_ISP82XX      7
3720
3721 #define FW_FILE_ISP21XX "ql2100_fw.bin"
3722 #define FW_FILE_ISP22XX "ql2200_fw.bin"
3723 #define FW_FILE_ISP2300 "ql2300_fw.bin"
3724 #define FW_FILE_ISP2322 "ql2322_fw.bin"
3725 #define FW_FILE_ISP24XX "ql2400_fw.bin"
3726 #define FW_FILE_ISP25XX "ql2500_fw.bin"
3727 #define FW_FILE_ISP81XX "ql8100_fw.bin"
3728 #define FW_FILE_ISP82XX "ql8200_fw.bin"
3729
3730 static DEFINE_MUTEX(qla_fw_lock);
3731
3732 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
3733         { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
3734         { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
3735         { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
3736         { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
3737         { .name = FW_FILE_ISP24XX, },
3738         { .name = FW_FILE_ISP25XX, },
3739         { .name = FW_FILE_ISP81XX, },
3740         { .name = FW_FILE_ISP82XX, },
3741 };
3742
3743 struct fw_blob *
3744 qla2x00_request_firmware(scsi_qla_host_t *vha)
3745 {
3746         struct qla_hw_data *ha = vha->hw;
3747         struct fw_blob *blob;
3748
3749         blob = NULL;
3750         if (IS_QLA2100(ha)) {
3751                 blob = &qla_fw_blobs[FW_ISP21XX];
3752         } else if (IS_QLA2200(ha)) {
3753                 blob = &qla_fw_blobs[FW_ISP22XX];
3754         } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
3755                 blob = &qla_fw_blobs[FW_ISP2300];
3756         } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
3757                 blob = &qla_fw_blobs[FW_ISP2322];
3758         } else if (IS_QLA24XX_TYPE(ha)) {
3759                 blob = &qla_fw_blobs[FW_ISP24XX];
3760         } else if (IS_QLA25XX(ha)) {
3761                 blob = &qla_fw_blobs[FW_ISP25XX];
3762         } else if (IS_QLA81XX(ha)) {
3763                 blob = &qla_fw_blobs[FW_ISP81XX];
3764         } else if (IS_QLA82XX(ha)) {
3765                 blob = &qla_fw_blobs[FW_ISP82XX];
3766         }
3767
3768         mutex_lock(&qla_fw_lock);
3769         if (blob->fw)
3770                 goto out;
3771
3772         if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
3773                 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
3774                     "(%s).\n", vha->host_no, blob->name));
3775                 blob->fw = NULL;
3776                 blob = NULL;
3777                 goto out;
3778         }
3779
3780 out:
3781         mutex_unlock(&qla_fw_lock);
3782         return blob;
3783 }
3784
3785 static void
3786 qla2x00_release_firmware(void)
3787 {
3788         int idx;
3789
3790         mutex_lock(&qla_fw_lock);
3791         for (idx = 0; idx < FW_BLOBS; idx++)
3792                 if (qla_fw_blobs[idx].fw)
3793                         release_firmware(qla_fw_blobs[idx].fw);
3794         mutex_unlock(&qla_fw_lock);
3795 }
3796
3797 static pci_ers_result_t
3798 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
3799 {
3800         scsi_qla_host_t *vha = pci_get_drvdata(pdev);
3801         struct qla_hw_data *ha = vha->hw;
3802
3803         DEBUG2(qla_printk(KERN_WARNING, ha, "error_detected:state %x\n",
3804             state));
3805
3806         switch (state) {
3807         case pci_channel_io_normal:
3808                 ha->flags.eeh_busy = 0;
3809                 return PCI_ERS_RESULT_CAN_RECOVER;
3810         case pci_channel_io_frozen:
3811                 ha->flags.eeh_busy = 1;
3812                 /* For ISP82XX complete any pending mailbox cmd */
3813                 if (IS_QLA82XX(ha)) {
3814                         ha->flags.isp82xx_fw_hung = 1;
3815                         if (ha->flags.mbox_busy) {
3816                                 ha->flags.mbox_int = 1;
3817                                 DEBUG2(qla_printk(KERN_ERR, ha,
3818                                         "Due to pci channel io frozen, doing premature "
3819                                         "completion of mbx command\n"));
3820                                 complete(&ha->mbx_intr_comp);
3821                         }
3822                 }
3823                 qla2x00_free_irqs(vha);
3824                 pci_disable_device(pdev);
3825                 /* Return back all IOs */
3826                 qla2x00_abort_all_cmds(vha, DID_RESET << 16);
3827                 return PCI_ERS_RESULT_NEED_RESET;
3828         case pci_channel_io_perm_failure:
3829                 ha->flags.pci_channel_io_perm_failure = 1;
3830                 qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
3831                 return PCI_ERS_RESULT_DISCONNECT;
3832         }
3833         return PCI_ERS_RESULT_NEED_RESET;
3834 }
3835
3836 static pci_ers_result_t
3837 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
3838 {
3839         int risc_paused = 0;
3840         uint32_t stat;
3841         unsigned long flags;
3842         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3843         struct qla_hw_data *ha = base_vha->hw;
3844         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3845         struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
3846
3847         if (IS_QLA82XX(ha))
3848                 return PCI_ERS_RESULT_RECOVERED;
3849
3850         spin_lock_irqsave(&ha->hardware_lock, flags);
3851         if (IS_QLA2100(ha) || IS_QLA2200(ha)){
3852                 stat = RD_REG_DWORD(&reg->hccr);
3853                 if (stat & HCCR_RISC_PAUSE)
3854                         risc_paused = 1;
3855         } else if (IS_QLA23XX(ha)) {
3856                 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
3857                 if (stat & HSR_RISC_PAUSED)
3858                         risc_paused = 1;
3859         } else if (IS_FWI2_CAPABLE(ha)) {
3860                 stat = RD_REG_DWORD(&reg24->host_status);
3861                 if (stat & HSRX_RISC_PAUSED)
3862                         risc_paused = 1;
3863         }
3864         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3865
3866         if (risc_paused) {
3867                 qla_printk(KERN_INFO, ha, "RISC paused -- mmio_enabled, "
3868                     "Dumping firmware!\n");
3869                 ha->isp_ops->fw_dump(base_vha, 0);
3870
3871                 return PCI_ERS_RESULT_NEED_RESET;
3872         } else
3873                 return PCI_ERS_RESULT_RECOVERED;
3874 }
3875
3876 uint32_t qla82xx_error_recovery(scsi_qla_host_t *base_vha)
3877 {
3878         uint32_t rval = QLA_FUNCTION_FAILED;
3879         uint32_t drv_active = 0;
3880         struct qla_hw_data *ha = base_vha->hw;
3881         int fn;
3882         struct pci_dev *other_pdev = NULL;
3883
3884         DEBUG17(qla_printk(KERN_INFO, ha,
3885             "scsi(%ld): In qla82xx_error_recovery\n", base_vha->host_no));
3886
3887         set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
3888
3889         if (base_vha->flags.online) {
3890                 /* Abort all outstanding commands,
3891                  * so as to be requeued later */
3892                 qla2x00_abort_isp_cleanup(base_vha);
3893         }
3894
3895
3896         fn = PCI_FUNC(ha->pdev->devfn);
3897         while (fn > 0) {
3898                 fn--;
3899                 DEBUG17(qla_printk(KERN_INFO, ha,
3900                     "Finding pci device at function = 0x%x\n", fn));
3901                 other_pdev =
3902                     pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus),
3903                     ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
3904                     fn));
3905
3906                 if (!other_pdev)
3907                         continue;
3908                 if (atomic_read(&other_pdev->enable_cnt)) {
3909                         DEBUG17(qla_printk(KERN_INFO, ha,
3910                             "Found PCI func available and enabled at 0x%x\n",
3911                             fn));
3912                         pci_dev_put(other_pdev);
3913                         break;
3914                 }
3915                 pci_dev_put(other_pdev);
3916         }
3917
3918         if (!fn) {
3919                 /* Reset owner */
3920                 DEBUG17(qla_printk(KERN_INFO, ha,
3921                     "This devfn is reset owner = 0x%x\n", ha->pdev->devfn));
3922                 qla82xx_idc_lock(ha);
3923
3924                 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3925                     QLA82XX_DEV_INITIALIZING);
3926
3927                 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION,
3928                     QLA82XX_IDC_VERSION);
3929
3930                 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3931                 DEBUG17(qla_printk(KERN_INFO, ha,
3932                     "drv_active = 0x%x\n", drv_active));
3933
3934                 qla82xx_idc_unlock(ha);
3935                 /* Reset if device is not already reset
3936                  * drv_active would be 0 if a reset has already been done
3937                  */
3938                 if (drv_active)
3939                         rval = qla82xx_start_firmware(base_vha);
3940                 else
3941                         rval = QLA_SUCCESS;
3942                 qla82xx_idc_lock(ha);
3943
3944                 if (rval != QLA_SUCCESS) {
3945                         qla_printk(KERN_INFO, ha, "HW State: FAILED\n");
3946                         qla82xx_clear_drv_active(ha);
3947                         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3948                             QLA82XX_DEV_FAILED);
3949                 } else {
3950                         qla_printk(KERN_INFO, ha, "HW State: READY\n");
3951                         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3952                             QLA82XX_DEV_READY);
3953                         qla82xx_idc_unlock(ha);
3954                         ha->flags.isp82xx_fw_hung = 0;
3955                         rval = qla82xx_restart_isp(base_vha);
3956                         qla82xx_idc_lock(ha);
3957                         /* Clear driver state register */
3958                         qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, 0);
3959                         qla82xx_set_drv_active(base_vha);
3960                 }
3961                 qla82xx_idc_unlock(ha);
3962         } else {
3963                 DEBUG17(qla_printk(KERN_INFO, ha,
3964                     "This devfn is not reset owner = 0x%x\n", ha->pdev->devfn));
3965                 if ((qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE) ==
3966                     QLA82XX_DEV_READY)) {
3967                         ha->flags.isp82xx_fw_hung = 0;
3968                         rval = qla82xx_restart_isp(base_vha);
3969                         qla82xx_idc_lock(ha);
3970                         qla82xx_set_drv_active(base_vha);
3971                         qla82xx_idc_unlock(ha);
3972                 }
3973         }
3974         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
3975
3976         return rval;
3977 }
3978
3979 static pci_ers_result_t
3980 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
3981 {
3982         pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
3983         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3984         struct qla_hw_data *ha = base_vha->hw;
3985         struct rsp_que *rsp;
3986         int rc, retries = 10;
3987
3988         DEBUG17(qla_printk(KERN_WARNING, ha, "slot_reset\n"));
3989
3990         /* Workaround: qla2xxx driver which access hardware earlier
3991          * needs error state to be pci_channel_io_online.
3992          * Otherwise mailbox command timesout.
3993          */
3994         pdev->error_state = pci_channel_io_normal;
3995
3996         pci_restore_state(pdev);
3997
3998         /* pci_restore_state() clears the saved_state flag of the device
3999          * save restored state which resets saved_state flag
4000          */
4001         pci_save_state(pdev);
4002
4003         if (ha->mem_only)
4004                 rc = pci_enable_device_mem(pdev);
4005         else
4006                 rc = pci_enable_device(pdev);
4007
4008         if (rc) {
4009                 qla_printk(KERN_WARNING, ha,
4010                     "Can't re-enable PCI device after reset.\n");
4011                 goto exit_slot_reset;
4012         }
4013
4014         rsp = ha->rsp_q_map[0];
4015         if (qla2x00_request_irqs(ha, rsp))
4016                 goto exit_slot_reset;
4017
4018         if (ha->isp_ops->pci_config(base_vha))
4019                 goto exit_slot_reset;
4020
4021         if (IS_QLA82XX(ha)) {
4022                 if (qla82xx_error_recovery(base_vha) == QLA_SUCCESS) {
4023                         ret = PCI_ERS_RESULT_RECOVERED;
4024                         goto exit_slot_reset;
4025                 } else
4026                         goto exit_slot_reset;
4027         }
4028
4029         while (ha->flags.mbox_busy && retries--)
4030                 msleep(1000);
4031
4032         set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
4033         if (ha->isp_ops->abort_isp(base_vha) == QLA_SUCCESS)
4034                 ret =  PCI_ERS_RESULT_RECOVERED;
4035         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
4036
4037
4038 exit_slot_reset:
4039         DEBUG17(qla_printk(KERN_WARNING, ha,
4040             "slot_reset-return:ret=%x\n", ret));
4041
4042         return ret;
4043 }
4044
4045 static void
4046 qla2xxx_pci_resume(struct pci_dev *pdev)
4047 {
4048         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
4049         struct qla_hw_data *ha = base_vha->hw;
4050         int ret;
4051
4052         DEBUG17(qla_printk(KERN_WARNING, ha, "pci_resume\n"));
4053
4054         ret = qla2x00_wait_for_hba_online(base_vha);
4055         if (ret != QLA_SUCCESS) {
4056                 qla_printk(KERN_ERR, ha,
4057                     "the device failed to resume I/O "
4058                     "from slot/link_reset");
4059         }
4060
4061         pci_cleanup_aer_uncorrect_error_status(pdev);
4062
4063         ha->flags.eeh_busy = 0;
4064 }
4065
4066 static struct pci_error_handlers qla2xxx_err_handler = {
4067         .error_detected = qla2xxx_pci_error_detected,
4068         .mmio_enabled = qla2xxx_pci_mmio_enabled,
4069         .slot_reset = qla2xxx_pci_slot_reset,
4070         .resume = qla2xxx_pci_resume,
4071 };
4072
4073 static struct pci_device_id qla2xxx_pci_tbl[] = {
4074         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
4075         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
4076         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
4077         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
4078         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
4079         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
4080         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
4081         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
4082         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
4083         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) },
4084         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
4085         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
4086         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
4087         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8001) },
4088         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8021) },
4089         { 0 },
4090 };
4091 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
4092
4093 static struct pci_driver qla2xxx_pci_driver = {
4094         .name           = QLA2XXX_DRIVER_NAME,
4095         .driver         = {
4096                 .owner          = THIS_MODULE,
4097         },
4098         .id_table       = qla2xxx_pci_tbl,
4099         .probe          = qla2x00_probe_one,
4100         .remove         = qla2x00_remove_one,
4101         .shutdown       = qla2x00_shutdown,
4102         .err_handler    = &qla2xxx_err_handler,
4103 };
4104
4105 static struct file_operations apidev_fops = {
4106         .owner = THIS_MODULE,
4107         .llseek = noop_llseek,
4108 };
4109
4110 /**
4111  * qla2x00_module_init - Module initialization.
4112  **/
4113 static int __init
4114 qla2x00_module_init(void)
4115 {
4116         int ret = 0;
4117
4118         /* Allocate cache for SRBs. */
4119         srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
4120             SLAB_HWCACHE_ALIGN, NULL);
4121         if (srb_cachep == NULL) {
4122                 printk(KERN_ERR
4123                     "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
4124                 return -ENOMEM;
4125         }
4126
4127         /* Derive version string. */
4128         strcpy(qla2x00_version_str, QLA2XXX_VERSION);
4129         if (ql2xextended_error_logging)
4130                 strcat(qla2x00_version_str, "-debug");
4131
4132         qla2xxx_transport_template =
4133             fc_attach_transport(&qla2xxx_transport_functions);
4134         if (!qla2xxx_transport_template) {
4135                 kmem_cache_destroy(srb_cachep);
4136                 return -ENODEV;
4137         }
4138
4139         apidev_major = register_chrdev(0, QLA2XXX_APIDEV, &apidev_fops);
4140         if (apidev_major < 0) {
4141                 printk(KERN_WARNING "qla2xxx: Unable to register char device "
4142                     "%s\n", QLA2XXX_APIDEV);
4143         }
4144
4145         qla2xxx_transport_vport_template =
4146             fc_attach_transport(&qla2xxx_transport_vport_functions);
4147         if (!qla2xxx_transport_vport_template) {
4148                 kmem_cache_destroy(srb_cachep);
4149                 fc_release_transport(qla2xxx_transport_template);
4150                 return -ENODEV;
4151         }
4152
4153         printk(KERN_INFO "QLogic Fibre Channel HBA Driver: %s\n",
4154             qla2x00_version_str);
4155         ret = pci_register_driver(&qla2xxx_pci_driver);
4156         if (ret) {
4157                 kmem_cache_destroy(srb_cachep);
4158                 fc_release_transport(qla2xxx_transport_template);
4159                 fc_release_transport(qla2xxx_transport_vport_template);
4160         }
4161         return ret;
4162 }
4163
4164 /**
4165  * qla2x00_module_exit - Module cleanup.
4166  **/
4167 static void __exit
4168 qla2x00_module_exit(void)
4169 {
4170         unregister_chrdev(apidev_major, QLA2XXX_APIDEV);
4171         pci_unregister_driver(&qla2xxx_pci_driver);
4172         qla2x00_release_firmware();
4173         kmem_cache_destroy(srb_cachep);
4174         if (ctx_cachep)
4175                 kmem_cache_destroy(ctx_cachep);
4176         fc_release_transport(qla2xxx_transport_template);
4177         fc_release_transport(qla2xxx_transport_vport_template);
4178 }
4179
4180 module_init(qla2x00_module_init);
4181 module_exit(qla2x00_module_exit);
4182
4183 MODULE_AUTHOR("QLogic Corporation");
4184 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
4185 MODULE_LICENSE("GPL");
4186 MODULE_VERSION(QLA2XXX_VERSION);
4187 MODULE_FIRMWARE(FW_FILE_ISP21XX);
4188 MODULE_FIRMWARE(FW_FILE_ISP22XX);
4189 MODULE_FIRMWARE(FW_FILE_ISP2300);
4190 MODULE_FIRMWARE(FW_FILE_ISP2322);
4191 MODULE_FIRMWARE(FW_FILE_ISP24XX);
4192 MODULE_FIRMWARE(FW_FILE_ISP25XX);