drivers/scsi/qla2xxx/qla_os.c

   1 /*
   2  * QLogic Fibre Channel HBA Driver
   3  * Copyright (c)  2003-2011 QLogic Corporation
   4  *
   5  * See LICENSE.qla2xxx for copyright and licensing details.
   6  */
   7 #include "qla_def.h"
   8
   9 #include <linux/moduleparam.h>
  10 #include <linux/vmalloc.h>
  11 #include <linux/delay.h>
  12 #include <linux/kthread.h>
  13 #include <linux/mutex.h>
  14 #include <linux/kobject.h>
  15 #include <linux/slab.h>
  16
  17 #include <scsi/scsi_tcq.h>
  18 #include <scsi/scsicam.h>
  19 #include <scsi/scsi_transport.h>
  20 #include <scsi/scsi_transport_fc.h>
  21
  22 /*
  23  * Driver version
  24  */
  25 char qla2x00_version_str[40];
  26
  27 static int apidev_major;
  28
  29 /*
  30  * SRB allocation cache
  31  */
  32 static struct kmem_cache *srb_cachep;
  33
  34 /*
  35  * CT6 CTX allocation cache
  36  */
  37 static struct kmem_cache *ctx_cachep;
  38
  39 int ql2xlogintimeout = 20;
  40 module_param(ql2xlogintimeout, int, S_IRUGO);
  41 MODULE_PARM_DESC(ql2xlogintimeout,
  42                 "Login timeout value in seconds.");
  43
  44 int qlport_down_retry;
  45 module_param(qlport_down_retry, int, S_IRUGO);
  46 MODULE_PARM_DESC(qlport_down_retry,
  47                 "Maximum number of command retries to a port that returns "
  48                 "a PORT-DOWN status.");
  49
  50 int ql2xplogiabsentdevice;
  51 module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
  52 MODULE_PARM_DESC(ql2xplogiabsentdevice,
  53                 "Option to enable PLOGI to devices that are not present after "
  54                 "a Fabric scan.  This is needed for several broken switches. "
  55                 "Default is 0 - no PLOGI. 1 - perfom PLOGI.");
  56
  57 int ql2xloginretrycount = 0;
  58 module_param(ql2xloginretrycount, int, S_IRUGO);
  59 MODULE_PARM_DESC(ql2xloginretrycount,
  60                 "Specify an alternate value for the NVRAM login retry count.");
  61
  62 int ql2xallocfwdump = 1;
  63 module_param(ql2xallocfwdump, int, S_IRUGO);
  64 MODULE_PARM_DESC(ql2xallocfwdump,
  65                 "Option to enable allocation of memory for a firmware dump "
  66                 "during HBA initialization.  Memory allocation requirements "
  67                 "vary by ISP type.  Default is 1 - allocate memory.");
  68
  69 int ql2xextended_error_logging;
  70 module_param(ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
  71 MODULE_PARM_DESC(ql2xextended_error_logging,
  72                 "Option to enable extended error logging, "
  73                 "Default is 0 - no logging. 1 - log errors.");
  74
  75 int ql2xshiftctondsd = 6;
  76 module_param(ql2xshiftctondsd, int, S_IRUGO);
  77 MODULE_PARM_DESC(ql2xshiftctondsd,
  78                 "Set to control shifting of command type processing "
  79                 "based on total number of SG elements.");
  80
  81 static void qla2x00_free_device(scsi_qla_host_t *);
  82
  83 int ql2xfdmienable=1;
  84 module_param(ql2xfdmienable, int, S_IRUGO);
  85 MODULE_PARM_DESC(ql2xfdmienable,
  86                 "Enables FDMI registrations. "
  87                 "0 - no FDMI. Default is 1 - perform FDMI.");
  88
  89 #define MAX_Q_DEPTH    32
  90 static int ql2xmaxqdepth = MAX_Q_DEPTH;
  91 module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
  92 MODULE_PARM_DESC(ql2xmaxqdepth,
  93                 "Maximum queue depth to report for target devices.");
  94
  95 /* Do not change the value of this after module load */
  96 int ql2xenabledif = 1;
  97 module_param(ql2xenabledif, int, S_IRUGO|S_IWUSR);
  98 MODULE_PARM_DESC(ql2xenabledif,
  99                 " Enable T10-CRC-DIF "
 100                 " Default is 0 - No DIF Support. 1 - Enable it");
 101
 102 int ql2xenablehba_err_chk;
 103 module_param(ql2xenablehba_err_chk, int, S_IRUGO|S_IWUSR);
 104 MODULE_PARM_DESC(ql2xenablehba_err_chk,
 105                 " Enable T10-CRC-DIF Error isolation by HBA"
 106                 " Default is 0 - Error isolation disabled, 1 - Enable it");
 107
 108 int ql2xiidmaenable=1;
 109 module_param(ql2xiidmaenable, int, S_IRUGO);
 110 MODULE_PARM_DESC(ql2xiidmaenable,
 111                 "Enables iIDMA settings "
 112                 "Default is 1 - perform iIDMA. 0 - no iIDMA.");
 113
 114 int ql2xmaxqueues = 1;
 115 module_param(ql2xmaxqueues, int, S_IRUGO);
 116 MODULE_PARM_DESC(ql2xmaxqueues,
 117                 "Enables MQ settings "
 118                 "Default is 1 for single queue. Set it to number "
 119                 "of queues in MQ mode.");
 120
 121 int ql2xmultique_tag;
 122 module_param(ql2xmultique_tag, int, S_IRUGO);
 123 MODULE_PARM_DESC(ql2xmultique_tag,
 124                 "Enables CPU affinity settings for the driver "
 125                 "Default is 0 for no affinity of request and response IO. "
 126                 "Set it to 1 to turn on the cpu affinity.");
 127
 128 int ql2xfwloadbin;
 129 module_param(ql2xfwloadbin, int, S_IRUGO);
 130 MODULE_PARM_DESC(ql2xfwloadbin,
 131                 "Option to specify location from which to load ISP firmware:\n"
 132                 " 2 -- load firmware via the request_firmware() (hotplug)\n"
 133                 "      interface.\n"
 134                 " 1 -- load firmware from flash.\n"
 135                 " 0 -- use default semantics.\n");
 136
 137 int ql2xetsenable;
 138 module_param(ql2xetsenable, int, S_IRUGO);
 139 MODULE_PARM_DESC(ql2xetsenable,
 140                 "Enables firmware ETS burst."
 141                 "Default is 0 - skip ETS enablement.");
 142
 143 int ql2xdbwr = 1;
 144 module_param(ql2xdbwr, int, S_IRUGO);
 145 MODULE_PARM_DESC(ql2xdbwr,
 146         "Option to specify scheme for request queue posting\n"
 147         " 0 -- Regular doorbell.\n"
 148         " 1 -- CAMRAM doorbell (faster).\n");
 149
 150 int ql2xtargetreset = 1;
 151 module_param(ql2xtargetreset, int, S_IRUGO);
 152 MODULE_PARM_DESC(ql2xtargetreset,
 153                  "Enable target reset."
 154                  "Default is 1 - use hw defaults.");
 155
 156 int ql2xgffidenable;
 157 module_param(ql2xgffidenable, int, S_IRUGO);
 158 MODULE_PARM_DESC(ql2xgffidenable,
 159                 "Enables GFF_ID checks of port type. "
 160                 "Default is 0 - Do not use GFF_ID information.");
 161
 162 int ql2xasynctmfenable;
 163 module_param(ql2xasynctmfenable, int, S_IRUGO);
 164 MODULE_PARM_DESC(ql2xasynctmfenable,
 165                 "Enables issue of TM IOCBs asynchronously via IOCB mechanism"
 166                 "Default is 0 - Issue TM IOCBs via mailbox mechanism.");
 167
 168 int ql2xdontresethba;
 169 module_param(ql2xdontresethba, int, S_IRUGO);
 170 MODULE_PARM_DESC(ql2xdontresethba,
 171         "Option to specify reset behaviour\n"
 172         " 0 (Default) -- Reset on failure.\n"
 173         " 1 -- Do not reset on failure.\n");
 174
 175 uint ql2xmaxlun = MAX_LUNS;
 176 module_param(ql2xmaxlun, uint, S_IRUGO);
 177 MODULE_PARM_DESC(ql2xmaxlun,
 178                 "Defines the maximum LU number to register with the SCSI "
 179                 "midlayer. Default is 65535.");
 180
 181 /*
 182  * SCSI host template entry points
 183  */
 184 static int qla2xxx_slave_configure(struct scsi_device * device);
 185 static int qla2xxx_slave_alloc(struct scsi_device *);
 186 static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
 187 static void qla2xxx_scan_start(struct Scsi_Host *);
 188 static void qla2xxx_slave_destroy(struct scsi_device *);
 189 static int qla2xxx_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmd);
 190 static int qla2xxx_eh_abort(struct scsi_cmnd *);
 191 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
 192 static int qla2xxx_eh_target_reset(struct scsi_cmnd *);
 193 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
 194 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
 195
 196 static int qla2x00_change_queue_depth(struct scsi_device *, int, int);
 197 static int qla2x00_change_queue_type(struct scsi_device *, int);
 198
 199 struct scsi_host_template qla2xxx_driver_template = {
 200         .module                 = THIS_MODULE,
 201         .name                   = QLA2XXX_DRIVER_NAME,
 202         .queuecommand           = qla2xxx_queuecommand,
 203
 204         .eh_abort_handler       = qla2xxx_eh_abort,
 205         .eh_device_reset_handler = qla2xxx_eh_device_reset,
 206         .eh_target_reset_handler = qla2xxx_eh_target_reset,
 207         .eh_bus_reset_handler   = qla2xxx_eh_bus_reset,
 208         .eh_host_reset_handler  = qla2xxx_eh_host_reset,
 209
 210         .slave_configure        = qla2xxx_slave_configure,
 211
 212         .slave_alloc            = qla2xxx_slave_alloc,
 213         .slave_destroy          = qla2xxx_slave_destroy,
 214         .scan_finished          = qla2xxx_scan_finished,
 215         .scan_start             = qla2xxx_scan_start,
 216         .change_queue_depth     = qla2x00_change_queue_depth,
 217         .change_queue_type      = qla2x00_change_queue_type,
 218         .this_id                = -1,
 219         .cmd_per_lun            = 3,
 220         .use_clustering         = ENABLE_CLUSTERING,
 221         .sg_tablesize           = SG_ALL,
 222
 223         .max_sectors            = 0xFFFF,
 224         .shost_attrs            = qla2x00_host_attrs,
 225 };
 226
 227 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
 228 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
 229
 230 /* TODO Convert to inlines
 231  *
 232  * Timer routines
 233  */
 234
 235 __inline__ void
 236 qla2x00_start_timer(scsi_qla_host_t *vha, void *func, unsigned long interval)
 237 {
 238         init_timer(&vha->timer);
 239         vha->timer.expires = jiffies + interval * HZ;
 240         vha->timer.data = (unsigned long)vha;
 241         vha->timer.function = (void (*)(unsigned long))func;
 242         add_timer(&vha->timer);
 243         vha->timer_active = 1;
 244 }
 245
 246 static inline void
 247 qla2x00_restart_timer(scsi_qla_host_t *vha, unsigned long interval)
 248 {
 249         /* Currently used for 82XX only. */
 250         if (vha->device_flags & DFLG_DEV_FAILED)
 251                 return;
 252
 253         mod_timer(&vha->timer, jiffies + interval * HZ);
 254 }
 255
 256 static __inline__ void
 257 qla2x00_stop_timer(scsi_qla_host_t *vha)
 258 {
 259         del_timer_sync(&vha->timer);
 260         vha->timer_active = 0;
 261 }
 262
 263 static int qla2x00_do_dpc(void *data);
 264
 265 static void qla2x00_rst_aen(scsi_qla_host_t *);
 266
 267 static int qla2x00_mem_alloc(struct qla_hw_data *, uint16_t, uint16_t,
 268         struct req_que **, struct rsp_que **);
 269 static void qla2x00_free_fw_dump(struct qla_hw_data *);
 270 static void qla2x00_mem_free(struct qla_hw_data *);
 271 static void qla2x00_sp_free_dma(srb_t *);
 272
 273 /* -------------------------------------------------------------------------- */
 274 static int qla2x00_alloc_queues(struct qla_hw_data *ha)
 275 {
 276         ha->req_q_map = kzalloc(sizeof(struct req_que *) * ha->max_req_queues,
 277                                 GFP_KERNEL);
 278         if (!ha->req_q_map) {
 279                 qla_printk(KERN_WARNING, ha,
 280                         "Unable to allocate memory for request queue ptrs\n");
 281                 goto fail_req_map;
 282         }
 283
 284         ha->rsp_q_map = kzalloc(sizeof(struct rsp_que *) * ha->max_rsp_queues,
 285                                 GFP_KERNEL);
 286         if (!ha->rsp_q_map) {
 287                 qla_printk(KERN_WARNING, ha,
 288                         "Unable to allocate memory for response queue ptrs\n");
 289                 goto fail_rsp_map;
 290         }
 291         set_bit(0, ha->rsp_qid_map);
 292         set_bit(0, ha->req_qid_map);
 293         return 1;
 294
 295 fail_rsp_map:
 296         kfree(ha->req_q_map);
 297         ha->req_q_map = NULL;
 298 fail_req_map:
 299         return -ENOMEM;
 300 }
 301
 302 static void qla2x00_free_req_que(struct qla_hw_data *ha, struct req_que *req)
 303 {
 304         if (req && req->ring)
 305                 dma_free_coherent(&ha->pdev->dev,
 306                 (req->length + 1) * sizeof(request_t),
 307                 req->ring, req->dma);
 308
 309         kfree(req);
 310         req = NULL;
 311 }
 312
 313 static void qla2x00_free_rsp_que(struct qla_hw_data *ha, struct rsp_que *rsp)
 314 {
 315         if (rsp && rsp->ring)
 316                 dma_free_coherent(&ha->pdev->dev,
 317                 (rsp->length + 1) * sizeof(response_t),
 318                 rsp->ring, rsp->dma);
 319
 320         kfree(rsp);
 321         rsp = NULL;
 322 }
 323
 324 static void qla2x00_free_queues(struct qla_hw_data *ha)
 325 {
 326         struct req_que *req;
 327         struct rsp_que *rsp;
 328         int cnt;
 329
 330         for (cnt = 0; cnt < ha->max_req_queues; cnt++) {
 331                 req = ha->req_q_map[cnt];
 332                 qla2x00_free_req_que(ha, req);
 333         }
 334         kfree(ha->req_q_map);
 335         ha->req_q_map = NULL;
 336
 337         for (cnt = 0; cnt < ha->max_rsp_queues; cnt++) {
 338                 rsp = ha->rsp_q_map[cnt];
 339                 qla2x00_free_rsp_que(ha, rsp);
 340         }
 341         kfree(ha->rsp_q_map);
 342         ha->rsp_q_map = NULL;
 343 }
 344
 345 static int qla25xx_setup_mode(struct scsi_qla_host *vha)
 346 {
 347         uint16_t options = 0;
 348         int ques, req, ret;
 349         struct qla_hw_data *ha = vha->hw;
 350
 351         if (!(ha->fw_attributes & BIT_6)) {
 352                 qla_printk(KERN_INFO, ha,
 353                         "Firmware is not multi-queue capable\n");
 354                 goto fail;
 355         }
 356         if (ql2xmultique_tag) {
 357                 /* create a request queue for IO */
 358                 options |= BIT_7;
 359                 req = qla25xx_create_req_que(ha, options, 0, 0, -1,
 360                         QLA_DEFAULT_QUE_QOS);
 361                 if (!req) {
 362                         qla_printk(KERN_WARNING, ha,
 363                                 "Can't create request queue\n");
 364                         goto fail;
 365                 }
 366                 ha->wq = alloc_workqueue("qla2xxx_wq", WQ_MEM_RECLAIM, 1);
 367                 vha->req = ha->req_q_map[req];
 368                 options |= BIT_1;
 369                 for (ques = 1; ques < ha->max_rsp_queues; ques++) {
 370                         ret = qla25xx_create_rsp_que(ha, options, 0, 0, req);
 371                         if (!ret) {
 372                                 qla_printk(KERN_WARNING, ha,
 373                                         "Response Queue create failed\n");
 374                                 goto fail2;
 375                         }
 376                 }
 377                 ha->flags.cpu_affinity_enabled = 1;
 378
 379                 DEBUG2(qla_printk(KERN_INFO, ha,
 380                         "CPU affinity mode enabled, no. of response"
 381                         " queues:%d, no. of request queues:%d\n",
 382                         ha->max_rsp_queues, ha->max_req_queues));
 383         }
 384         return 0;
 385 fail2:
 386         qla25xx_delete_queues(vha);
 387         destroy_workqueue(ha->wq);
 388         ha->wq = NULL;
 389 fail:
 390         ha->mqenable = 0;
 391         kfree(ha->req_q_map);
 392         kfree(ha->rsp_q_map);
 393         ha->max_req_queues = ha->max_rsp_queues = 1;
 394         return 1;
 395 }
 396
 397 static char *
 398 qla2x00_pci_info_str(struct scsi_qla_host *vha, char *str)
 399 {
 400         struct qla_hw_data *ha = vha->hw;
 401         static char *pci_bus_modes[] = {
 402                 "33", "66", "100", "133",
 403         };
 404         uint16_t pci_bus;
 405
 406         strcpy(str, "PCI");
 407         pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
 408         if (pci_bus) {
 409                 strcat(str, "-X (");
 410                 strcat(str, pci_bus_modes[pci_bus]);
 411         } else {
 412                 pci_bus = (ha->pci_attr & BIT_8) >> 8;
 413                 strcat(str, " (");
 414                 strcat(str, pci_bus_modes[pci_bus]);
 415         }
 416         strcat(str, " MHz)");
 417
 418         return (str);
 419 }
 420
 421 static char *
 422 qla24xx_pci_info_str(struct scsi_qla_host *vha, char *str)
 423 {
 424         static char *pci_bus_modes[] = { "33", "66", "100", "133", };
 425         struct qla_hw_data *ha = vha->hw;
 426         uint32_t pci_bus;
 427         int pcie_reg;
 428
 429         pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
 430         if (pcie_reg) {
 431                 char lwstr[6];
 432                 uint16_t pcie_lstat, lspeed, lwidth;
 433
 434                 pcie_reg += 0x12;
 435                 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
 436                 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
 437                 lwidth = (pcie_lstat &
 438                     (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
 439
 440                 strcpy(str, "PCIe (");
 441                 if (lspeed == 1)
 442                         strcat(str, "2.5GT/s ");
 443                 else if (lspeed == 2)
 444                         strcat(str, "5.0GT/s ");
 445                 else
 446                         strcat(str, "<unknown> ");
 447                 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
 448                 strcat(str, lwstr);
 449
 450                 return str;
 451         }
 452
 453         strcpy(str, "PCI");
 454         pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
 455         if (pci_bus == 0 || pci_bus == 8) {
 456                 strcat(str, " (");
 457                 strcat(str, pci_bus_modes[pci_bus >> 3]);
 458         } else {
 459                 strcat(str, "-X ");
 460                 if (pci_bus & BIT_2)
 461                         strcat(str, "Mode 2");
 462                 else
 463                         strcat(str, "Mode 1");
 464                 strcat(str, " (");
 465                 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
 466         }
 467         strcat(str, " MHz)");
 468
 469         return str;
 470 }
 471
 472 static char *
 473 qla2x00_fw_version_str(struct scsi_qla_host *vha, char *str)
 474 {
 475         char un_str[10];
 476         struct qla_hw_data *ha = vha->hw;
 477
 478         sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
 479             ha->fw_minor_version,
 480             ha->fw_subminor_version);
 481
 482         if (ha->fw_attributes & BIT_9) {
 483                 strcat(str, "FLX");
 484                 return (str);
 485         }
 486
 487         switch (ha->fw_attributes & 0xFF) {
 488         case 0x7:
 489                 strcat(str, "EF");
 490                 break;
 491         case 0x17:
 492                 strcat(str, "TP");
 493                 break;
 494         case 0x37:
 495                 strcat(str, "IP");
 496                 break;
 497         case 0x77:
 498                 strcat(str, "VI");
 499                 break;
 500         default:
 501                 sprintf(un_str, "(%x)", ha->fw_attributes);
 502                 strcat(str, un_str);
 503                 break;
 504         }
 505         if (ha->fw_attributes & 0x100)
 506                 strcat(str, "X");
 507
 508         return (str);
 509 }
 510
 511 static char *
 512 qla24xx_fw_version_str(struct scsi_qla_host *vha, char *str)
 513 {
 514         struct qla_hw_data *ha = vha->hw;
 515
 516         sprintf(str, "%d.%02d.%02d (%x)", ha->fw_major_version,
 517             ha->fw_minor_version, ha->fw_subminor_version, ha->fw_attributes);
 518         return str;
 519 }
 520
 521 static inline srb_t *
 522 qla2x00_get_new_sp(scsi_qla_host_t *vha, fc_port_t *fcport,
 523         struct scsi_cmnd *cmd)
 524 {
 525         srb_t *sp;
 526         struct qla_hw_data *ha = vha->hw;
 527
 528         sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
 529         if (!sp)
 530                 return sp;
 531
 532         atomic_set(&sp->ref_count, 1);
 533         sp->fcport = fcport;
 534         sp->cmd = cmd;
 535         sp->flags = 0;
 536         CMD_SP(cmd) = (void *)sp;
 537         sp->ctx = NULL;
 538
 539         return sp;
 540 }
 541
 542 static int
 543 qla2xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
 544 {
 545         scsi_qla_host_t *vha = shost_priv(host);
 546         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 547         struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
 548         struct qla_hw_data *ha = vha->hw;
 549         struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
 550         srb_t *sp;
 551         int rval;
 552
 553         if (ha->flags.eeh_busy) {
 554                 if (ha->flags.pci_channel_io_perm_failure)
 555                         cmd->result = DID_NO_CONNECT << 16;
 556                 else
 557                         cmd->result = DID_REQUEUE << 16;
 558                 goto qc24_fail_command;
 559         }
 560
 561         rval = fc_remote_port_chkready(rport);
 562         if (rval) {
 563                 cmd->result = rval;
 564                 goto qc24_fail_command;
 565         }
 566
 567         if (!vha->flags.difdix_supported &&
 568                 scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) {
 569                         DEBUG2(qla_printk(KERN_ERR, ha,
 570                             "DIF Cap Not Reg, fail DIF capable cmd's:%x\n",
 571                             cmd->cmnd[0]));
 572                         cmd->result = DID_NO_CONNECT << 16;
 573                         goto qc24_fail_command;
 574         }
 575         if (atomic_read(&fcport->state) != FCS_ONLINE) {
 576                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
 577                         atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
 578                         cmd->result = DID_NO_CONNECT << 16;
 579                         goto qc24_fail_command;
 580                 }
 581                 goto qc24_target_busy;
 582         }
 583
 584         sp = qla2x00_get_new_sp(base_vha, fcport, cmd);
 585         if (!sp)
 586                 goto qc24_host_busy;
 587
 588         rval = ha->isp_ops->start_scsi(sp);
 589         if (rval != QLA_SUCCESS)
 590                 goto qc24_host_busy_free_sp;
 591
 592         return 0;
 593
 594 qc24_host_busy_free_sp:
 595         qla2x00_sp_free_dma(sp);
 596         mempool_free(sp, ha->srb_mempool);
 597
 598 qc24_host_busy:
 599         return SCSI_MLQUEUE_HOST_BUSY;
 600
 601 qc24_target_busy:
 602         return SCSI_MLQUEUE_TARGET_BUSY;
 603
 604 qc24_fail_command:
 605         cmd->scsi_done(cmd);
 606
 607         return 0;
 608 }
 609
 610 /*
 611  * qla2x00_eh_wait_on_command
 612  *    Waits for the command to be returned by the Firmware for some
 613  *    max time.
 614  *
 615  * Input:
 616  *    cmd = Scsi Command to wait on.
 617  *
 618  * Return:
 619  *    Not Found : 0
 620  *    Found : 1
 621  */
 622 static int
 623 qla2x00_eh_wait_on_command(struct scsi_cmnd *cmd)
 624 {
 625 #define ABORT_POLLING_PERIOD    1000
 626 #define ABORT_WAIT_ITER         ((10 * 1000) / (ABORT_POLLING_PERIOD))
 627         unsigned long wait_iter = ABORT_WAIT_ITER;
 628         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 629         struct qla_hw_data *ha = vha->hw;
 630         int ret = QLA_SUCCESS;
 631
 632         if (unlikely(pci_channel_offline(ha->pdev)) || ha->flags.eeh_busy) {
 633                 DEBUG17(qla_printk(KERN_WARNING, ha, "return:eh_wait\n"));
 634                 return ret;
 635         }
 636
 637         while (CMD_SP(cmd) && wait_iter--) {
 638                 msleep(ABORT_POLLING_PERIOD);
 639         }
 640         if (CMD_SP(cmd))
 641                 ret = QLA_FUNCTION_FAILED;
 642
 643         return ret;
 644 }
 645
 646 /*
 647  * qla2x00_wait_for_hba_online
 648  *    Wait till the HBA is online after going through
 649  *    <= MAX_RETRIES_OF_ISP_ABORT  or
 650  *    finally HBA is disabled ie marked offline
 651  *
 652  * Input:
 653  *     ha - pointer to host adapter structure
 654  *
 655  * Note:
 656  *    Does context switching-Release SPIN_LOCK
 657  *    (if any) before calling this routine.
 658  *
 659  * Return:
 660  *    Success (Adapter is online) : 0
 661  *    Failed  (Adapter is offline/disabled) : 1
 662  */
 663 int
 664 qla2x00_wait_for_hba_online(scsi_qla_host_t *vha)
 665 {
 666         int             return_status;
 667         unsigned long   wait_online;
 668         struct qla_hw_data *ha = vha->hw;
 669         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 670
 671         wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 672         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 673             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 674             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 675             ha->dpc_active) && time_before(jiffies, wait_online)) {
 676
 677                 msleep(1000);
 678         }
 679         if (base_vha->flags.online)
 680                 return_status = QLA_SUCCESS;
 681         else
 682                 return_status = QLA_FUNCTION_FAILED;
 683
 684         return (return_status);
 685 }
 686
 687 /*
 688  * qla2x00_wait_for_reset_ready
 689  *    Wait till the HBA is online after going through
 690  *    <= MAX_RETRIES_OF_ISP_ABORT  or
 691  *    finally HBA is disabled ie marked offline or flash
 692  *    operations are in progress.
 693  *
 694  * Input:
 695  *     ha - pointer to host adapter structure
 696  *
 697  * Note:
 698  *    Does context switching-Release SPIN_LOCK
 699  *    (if any) before calling this routine.
 700  *
 701  * Return:
 702  *    Success (Adapter is online/no flash ops) : 0
 703  *    Failed  (Adapter is offline/disabled/flash ops in progress) : 1
 704  */
 705 static int
 706 qla2x00_wait_for_reset_ready(scsi_qla_host_t *vha)
 707 {
 708         int             return_status;
 709         unsigned long   wait_online;
 710         struct qla_hw_data *ha = vha->hw;
 711         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 712
 713         wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 714         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 715             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 716             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 717             ha->optrom_state != QLA_SWAITING ||
 718             ha->dpc_active) && time_before(jiffies, wait_online))
 719                 msleep(1000);
 720
 721         if (base_vha->flags.online &&  ha->optrom_state == QLA_SWAITING)
 722                 return_status = QLA_SUCCESS;
 723         else
 724                 return_status = QLA_FUNCTION_FAILED;
 725
 726         DEBUG2(printk("%s return_status=%d\n", __func__, return_status));
 727
 728         return return_status;
 729 }
 730
 731 int
 732 qla2x00_wait_for_chip_reset(scsi_qla_host_t *vha)
 733 {
 734         int             return_status;
 735         unsigned long   wait_reset;
 736         struct qla_hw_data *ha = vha->hw;
 737         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 738
 739         wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 740         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 741             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 742             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 743             ha->dpc_active) && time_before(jiffies, wait_reset)) {
 744
 745                 msleep(1000);
 746
 747                 if (!test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags) &&
 748                     ha->flags.chip_reset_done)
 749                         break;
 750         }
 751         if (ha->flags.chip_reset_done)
 752                 return_status = QLA_SUCCESS;
 753         else
 754                 return_status = QLA_FUNCTION_FAILED;
 755
 756         return return_status;
 757 }
 758
 759 /*
 760  * qla2x00_wait_for_loop_ready
 761  *    Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
 762  *    to be in LOOP_READY state.
 763  * Input:
 764  *     ha - pointer to host adapter structure
 765  *
 766  * Note:
 767  *    Does context switching-Release SPIN_LOCK
 768  *    (if any) before calling this routine.
 769  *
 770  *
 771  * Return:
 772  *    Success (LOOP_READY) : 0
 773  *    Failed  (LOOP_NOT_READY) : 1
 774  */
 775 static inline int
 776 qla2x00_wait_for_loop_ready(scsi_qla_host_t *vha)
 777 {
 778         int      return_status = QLA_SUCCESS;
 779         unsigned long loop_timeout ;
 780         struct qla_hw_data *ha = vha->hw;
 781         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 782
 783         /* wait for 5 min at the max for loop to be ready */
 784         loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 785
 786         while ((!atomic_read(&base_vha->loop_down_timer) &&
 787             atomic_read(&base_vha->loop_state) == LOOP_DOWN) ||
 788             atomic_read(&base_vha->loop_state) != LOOP_READY) {
 789                 if (atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
 790                         return_status = QLA_FUNCTION_FAILED;
 791                         break;
 792                 }
 793                 msleep(1000);
 794                 if (time_after_eq(jiffies, loop_timeout)) {
 795                         return_status = QLA_FUNCTION_FAILED;
 796                         break;
 797                 }
 798         }
 799         return (return_status);
 800 }
 801
 802 static void
 803 sp_get(struct srb *sp)
 804 {
 805         atomic_inc(&sp->ref_count);
 806 }
 807
 808 /**************************************************************************
 809 * qla2xxx_eh_abort
 810 *
 811 * Description:
 812 *    The abort function will abort the specified command.
 813 *
 814 * Input:
 815 *    cmd = Linux SCSI command packet to be aborted.
 816 *
 817 * Returns:
 818 *    Either SUCCESS or FAILED.
 819 *
 820 * Note:
 821 *    Only return FAILED if command not returned by firmware.
 822 **************************************************************************/
 823 static int
 824 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
 825 {
 826         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 827         srb_t *sp;
 828         int ret;
 829         unsigned int id, lun;
 830         unsigned long flags;
 831         int wait = 0;
 832         struct qla_hw_data *ha = vha->hw;
 833
 834         if (!CMD_SP(cmd))
 835                 return SUCCESS;
 836
 837         ret = fc_block_scsi_eh(cmd);
 838         if (ret != 0)
 839                 return ret;
 840         ret = SUCCESS;
 841
 842         id = cmd->device->id;
 843         lun = cmd->device->lun;
 844
 845         spin_lock_irqsave(&ha->hardware_lock, flags);
 846         sp = (srb_t *) CMD_SP(cmd);
 847         if (!sp) {
 848                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 849                 return SUCCESS;
 850         }
 851
 852         DEBUG2(printk("%s(%ld): aborting sp %p from RISC.",
 853             __func__, vha->host_no, sp));
 854
 855         /* Get a reference to the sp and drop the lock.*/
 856         sp_get(sp);
 857
 858         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 859         if (ha->isp_ops->abort_command(sp)) {
 860                 DEBUG2(printk("%s(%ld): abort_command "
 861                 "mbx failed.\n", __func__, vha->host_no));
 862                 ret = FAILED;
 863         } else {
 864                 DEBUG3(printk("%s(%ld): abort_command "
 865                 "mbx success.\n", __func__, vha->host_no));
 866                 wait = 1;
 867         }
 868         qla2x00_sp_compl(ha, sp);
 869
 870         /* Wait for the command to be returned. */
 871         if (wait) {
 872                 if (qla2x00_eh_wait_on_command(cmd) != QLA_SUCCESS) {
 873                         qla_printk(KERN_ERR, ha,
 874                             "scsi(%ld:%d:%d): Abort handler timed out -- %x.\n",
 875                             vha->host_no, id, lun, ret);
 876                         ret = FAILED;
 877                 }
 878         }
 879
 880         qla_printk(KERN_INFO, ha,
 881             "scsi(%ld:%d:%d): Abort command issued -- %d %x.\n",
 882             vha->host_no, id, lun, wait, ret);
 883
 884         return ret;
 885 }
 886
 887 int
 888 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *vha, unsigned int t,
 889         unsigned int l, enum nexus_wait_type type)
 890 {
 891         int cnt, match, status;
 892         unsigned long flags;
 893         struct qla_hw_data *ha = vha->hw;
 894         struct req_que *req;
 895         srb_t *sp;
 896
 897         status = QLA_SUCCESS;
 898
 899         spin_lock_irqsave(&ha->hardware_lock, flags);
 900         req = vha->req;
 901         for (cnt = 1; status == QLA_SUCCESS &&
 902                 cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
 903                 sp = req->outstanding_cmds[cnt];
 904                 if (!sp)
 905                         continue;
 906                 if ((sp->ctx) && !IS_PROT_IO(sp))
 907                         continue;
 908                 if (vha->vp_idx != sp->fcport->vha->vp_idx)
 909                         continue;
 910                 match = 0;
 911                 switch (type) {
 912                 case WAIT_HOST:
 913                         match = 1;
 914                         break;
 915                 case WAIT_TARGET:
 916                         match = sp->cmd->device->id == t;
 917                         break;
 918                 case WAIT_LUN:
 919                         match = (sp->cmd->device->id == t &&
 920                                 sp->cmd->device->lun == l);
 921                         break;
 922                 }
 923                 if (!match)
 924                         continue;
 925
 926                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 927                 status = qla2x00_eh_wait_on_command(sp->cmd);
 928                 spin_lock_irqsave(&ha->hardware_lock, flags);
 929         }
 930         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 931
 932         return status;
 933 }
 934
 935 static char *reset_errors[] = {
 936         "HBA not online",
 937         "HBA not ready",
 938         "Task management failed",
 939         "Waiting for command completions",
 940 };
 941
 942 static int
 943 __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
 944     struct scsi_cmnd *cmd, int (*do_reset)(struct fc_port *, unsigned int, int))
 945 {
 946         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 947         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 948         int err;
 949
 950         if (!fcport)
 951                 return FAILED;
 952
 953         err = fc_block_scsi_eh(cmd);
 954         if (err != 0)
 955                 return err;
 956
 957         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET ISSUED.\n",
 958             vha->host_no, cmd->device->id, cmd->device->lun, name);
 959
 960         err = 0;
 961         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
 962                 goto eh_reset_failed;
 963         err = 1;
 964         if (qla2x00_wait_for_loop_ready(vha) != QLA_SUCCESS)
 965                 goto eh_reset_failed;
 966         err = 2;
 967         if (do_reset(fcport, cmd->device->lun, cmd->request->cpu + 1)
 968                 != QLA_SUCCESS)
 969                 goto eh_reset_failed;
 970         err = 3;
 971         if (qla2x00_eh_wait_for_pending_commands(vha, cmd->device->id,
 972             cmd->device->lun, type) != QLA_SUCCESS)
 973                 goto eh_reset_failed;
 974
 975         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET SUCCEEDED.\n",
 976             vha->host_no, cmd->device->id, cmd->device->lun, name);
 977
 978         return SUCCESS;
 979
 980 eh_reset_failed:
 981         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET FAILED: %s.\n"
 982             , vha->host_no, cmd->device->id, cmd->device->lun, name,
 983             reset_errors[err]);
 984         return FAILED;
 985 }
 986
 987 static int
 988 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
 989 {
 990         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 991         struct qla_hw_data *ha = vha->hw;
 992
 993         return __qla2xxx_eh_generic_reset("DEVICE", WAIT_LUN, cmd,
 994             ha->isp_ops->lun_reset);
 995 }
 996
 997 static int
 998 qla2xxx_eh_target_reset(struct scsi_cmnd *cmd)
 999 {
1000         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1001         struct qla_hw_data *ha = vha->hw;
1002
1003         return __qla2xxx_eh_generic_reset("TARGET", WAIT_TARGET, cmd,
1004             ha->isp_ops->target_reset);
1005 }
1006
1007 /**************************************************************************
1008 * qla2xxx_eh_bus_reset
1009 *
1010 * Description:
1011 *    The bus reset function will reset the bus and abort any executing
1012 *    commands.
1013 *
1014 * Input:
1015 *    cmd = Linux SCSI command packet of the command that cause the
1016 *          bus reset.
1017 *
1018 * Returns:
1019 *    SUCCESS/FAILURE (defined as macro in scsi.h).
1020 *
1021 **************************************************************************/
1022 static int
1023 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
1024 {
1025         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1026         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1027         int ret = FAILED;
1028         unsigned int id, lun;
1029
1030         id = cmd->device->id;
1031         lun = cmd->device->lun;
1032
1033         if (!fcport)
1034                 return ret;
1035
1036         ret = fc_block_scsi_eh(cmd);
1037         if (ret != 0)
1038                 return ret;
1039         ret = FAILED;
1040
1041         qla_printk(KERN_INFO, vha->hw,
1042             "scsi(%ld:%d:%d): BUS RESET ISSUED.\n", vha->host_no, id, lun);
1043
1044         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1045                 DEBUG2(printk("%s failed:board disabled\n",__func__));
1046                 goto eh_bus_reset_done;
1047         }
1048
1049         if (qla2x00_wait_for_loop_ready(vha) == QLA_SUCCESS) {
1050                 if (qla2x00_loop_reset(vha) == QLA_SUCCESS)
1051                         ret = SUCCESS;
1052         }
1053         if (ret == FAILED)
1054                 goto eh_bus_reset_done;
1055
1056         /* Flush outstanding commands. */
1057         if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST) !=
1058             QLA_SUCCESS)
1059                 ret = FAILED;
1060
1061 eh_bus_reset_done:
1062         qla_printk(KERN_INFO, vha->hw, "%s: reset %s\n", __func__,
1063             (ret == FAILED) ? "failed" : "succeeded");
1064
1065         return ret;
1066 }
1067
1068 /**************************************************************************
1069 * qla2xxx_eh_host_reset
1070 *
1071 * Description:
1072 *    The reset function will reset the Adapter.
1073 *
1074 * Input:
1075 *      cmd = Linux SCSI command packet of the command that cause the
1076 *            adapter reset.
1077 *
1078 * Returns:
1079 *      Either SUCCESS or FAILED.
1080 *
1081 * Note:
1082 **************************************************************************/
1083 static int
1084 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
1085 {
1086         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1087         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1088         struct qla_hw_data *ha = vha->hw;
1089         int ret = FAILED;
1090         unsigned int id, lun;
1091         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1092
1093         id = cmd->device->id;
1094         lun = cmd->device->lun;
1095
1096         if (!fcport)
1097                 return ret;
1098
1099         ret = fc_block_scsi_eh(cmd);
1100         if (ret != 0)
1101                 return ret;
1102         ret = FAILED;
1103
1104         qla_printk(KERN_INFO, ha,
1105             "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", vha->host_no, id, lun);
1106
1107         if (qla2x00_wait_for_reset_ready(vha) != QLA_SUCCESS)
1108                 goto eh_host_reset_lock;
1109
1110         /*
1111          * Fixme-may be dpc thread is active and processing
1112          * loop_resync,so wait a while for it to
1113          * be completed and then issue big hammer.Otherwise
1114          * it may cause I/O failure as big hammer marks the
1115          * devices as lost kicking of the port_down_timer
1116          * while dpc is stuck for the mailbox to complete.
1117          */
1118         qla2x00_wait_for_loop_ready(vha);
1119         if (vha != base_vha) {
1120                 if (qla2x00_vp_abort_isp(vha))
1121                         goto eh_host_reset_lock;
1122         } else {
1123                 if (IS_QLA82XX(vha->hw)) {
1124                         if (!qla82xx_fcoe_ctx_reset(vha)) {
1125                                 /* Ctx reset success */
1126                                 ret = SUCCESS;
1127                                 goto eh_host_reset_lock;
1128                         }
1129                         /* fall thru if ctx reset failed */
1130                 }
1131                 if (ha->wq)
1132                         flush_workqueue(ha->wq);
1133
1134                 set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1135                 if (ha->isp_ops->abort_isp(base_vha)) {
1136                         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1137                         /* failed. schedule dpc to try */
1138                         set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags);
1139
1140                         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
1141                                 goto eh_host_reset_lock;
1142                 }
1143                 clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1144         }
1145
1146         /* Waiting for command to be returned to OS.*/
1147         if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST) ==
1148                 QLA_SUCCESS)
1149                 ret = SUCCESS;
1150
1151 eh_host_reset_lock:
1152         qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
1153             (ret == FAILED) ? "failed" : "succeeded");
1154
1155         return ret;
1156 }
1157
1158 /*
1159 * qla2x00_loop_reset
1160 *      Issue loop reset.
1161 *
1162 * Input:
1163 *      ha = adapter block pointer.
1164 *
1165 * Returns:
1166 *      0 = success
1167 */
1168 int
1169 qla2x00_loop_reset(scsi_qla_host_t *vha)
1170 {
1171         int ret;
1172         struct fc_port *fcport;
1173         struct qla_hw_data *ha = vha->hw;
1174
1175         if (ql2xtargetreset == 1 && ha->flags.enable_target_reset) {
1176                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
1177                         if (fcport->port_type != FCT_TARGET)
1178                                 continue;
1179
1180                         ret = ha->isp_ops->target_reset(fcport, 0, 0);
1181                         if (ret != QLA_SUCCESS) {
1182                                 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1183                                     "target_reset=%d d_id=%x.\n", __func__,
1184                                     vha->host_no, ret, fcport->d_id.b24));
1185                         }
1186                 }
1187         }
1188
1189         if (ha->flags.enable_lip_full_login && !IS_QLA8XXX_TYPE(ha)) {
1190                 ret = qla2x00_full_login_lip(vha);
1191                 if (ret != QLA_SUCCESS) {
1192                         DEBUG2_3(printk("%s(%ld): failed: "
1193                             "full_login_lip=%d.\n", __func__, vha->host_no,
1194                             ret));
1195                 }
1196                 atomic_set(&vha->loop_state, LOOP_DOWN);
1197                 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1198                 qla2x00_mark_all_devices_lost(vha, 0);
1199                 qla2x00_wait_for_loop_ready(vha);
1200         }
1201
1202         if (ha->flags.enable_lip_reset) {
1203                 ret = qla2x00_lip_reset(vha);
1204                 if (ret != QLA_SUCCESS) {
1205                         DEBUG2_3(printk("%s(%ld): failed: "
1206                             "lip_reset=%d.\n", __func__, vha->host_no, ret));
1207                 } else
1208                         qla2x00_wait_for_loop_ready(vha);
1209         }
1210
1211         /* Issue marker command only when we are going to start the I/O */
1212         vha->marker_needed = 1;
1213
1214         return QLA_SUCCESS;
1215 }
1216
1217 void
1218 qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res)
1219 {
1220         int que, cnt;
1221         unsigned long flags;
1222         srb_t *sp;
1223         struct srb_ctx *ctx;
1224         struct qla_hw_data *ha = vha->hw;
1225         struct req_que *req;
1226
1227         spin_lock_irqsave(&ha->hardware_lock, flags);
1228         for (que = 0; que < ha->max_req_queues; que++) {
1229                 req = ha->req_q_map[que];
1230                 if (!req)
1231                         continue;
1232                 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
1233                         sp = req->outstanding_cmds[cnt];
1234                         if (sp) {
1235                                 req->outstanding_cmds[cnt] = NULL;
1236                                 if (!sp->ctx ||
1237                                         (sp->flags & SRB_FCP_CMND_DMA_VALID) ||
1238                                         IS_PROT_IO(sp)) {
1239                                         sp->cmd->result = res;
1240                                         qla2x00_sp_compl(ha, sp);
1241                                 } else {
1242                                         ctx = sp->ctx;
1243                                         if (ctx->type == SRB_LOGIN_CMD ||
1244                                             ctx->type == SRB_LOGOUT_CMD) {
1245                                                 ctx->u.iocb_cmd->free(sp);
1246                                         } else {
1247                                                 struct fc_bsg_job *bsg_job =
1248                                                     ctx->u.bsg_job;
1249                                                 if (bsg_job->request->msgcode
1250                                                     == FC_BSG_HST_CT)
1251                                                         kfree(sp->fcport);
1252                                                 bsg_job->req->errors = 0;
1253                                                 bsg_job->reply->result = res;
1254                                                 bsg_job->job_done(bsg_job);
1255                                                 kfree(sp->ctx);
1256                                                 mempool_free(sp,
1257                                                         ha->srb_mempool);
1258                                         }
1259                                 }
1260                         }
1261                 }
1262         }
1263         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1264 }
1265
1266 static int
1267 qla2xxx_slave_alloc(struct scsi_device *sdev)
1268 {
1269         struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1270
1271         if (!rport || fc_remote_port_chkready(rport))
1272                 return -ENXIO;
1273
1274         sdev->hostdata = *(fc_port_t **)rport->dd_data;
1275
1276         return 0;
1277 }
1278
1279 static int
1280 qla2xxx_slave_configure(struct scsi_device *sdev)
1281 {
1282         scsi_qla_host_t *vha = shost_priv(sdev->host);
1283         struct req_que *req = vha->req;
1284
1285         if (sdev->tagged_supported)
1286                 scsi_activate_tcq(sdev, req->max_q_depth);
1287         else
1288                 scsi_deactivate_tcq(sdev, req->max_q_depth);
1289         return 0;
1290 }
1291
1292 static void
1293 qla2xxx_slave_destroy(struct scsi_device *sdev)
1294 {
1295         sdev->hostdata = NULL;
1296 }
1297
1298 static void qla2x00_handle_queue_full(struct scsi_device *sdev, int qdepth)
1299 {
1300         fc_port_t *fcport = (struct fc_port *) sdev->hostdata;
1301
1302         if (!scsi_track_queue_full(sdev, qdepth))
1303                 return;
1304
1305         DEBUG2(qla_printk(KERN_INFO, fcport->vha->hw,
1306                 "scsi(%ld:%d:%d:%d): Queue depth adjusted-down to %d.\n",
1307                 fcport->vha->host_no, sdev->channel, sdev->id, sdev->lun,
1308                 sdev->queue_depth));
1309 }
1310
1311 static void qla2x00_adjust_sdev_qdepth_up(struct scsi_device *sdev, int qdepth)
1312 {
1313         fc_port_t *fcport = sdev->hostdata;
1314         struct scsi_qla_host *vha = fcport->vha;
1315         struct qla_hw_data *ha = vha->hw;
1316         struct req_que *req = NULL;
1317
1318         req = vha->req;
1319         if (!req)
1320                 return;
1321
1322         if (req->max_q_depth <= sdev->queue_depth || req->max_q_depth < qdepth)
1323                 return;
1324
1325         if (sdev->ordered_tags)
1326                 scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, qdepth);
1327         else
1328                 scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, qdepth);
1329
1330         DEBUG2(qla_printk(KERN_INFO, ha,
1331                "scsi(%ld:%d:%d:%d): Queue depth adjusted-up to %d.\n",
1332                fcport->vha->host_no, sdev->channel, sdev->id, sdev->lun,
1333                sdev->queue_depth));
1334 }
1335
1336 static int
1337 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
1338 {
1339         switch (reason) {
1340         case SCSI_QDEPTH_DEFAULT:
1341                 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1342                 break;
1343         case SCSI_QDEPTH_QFULL:
1344                 qla2x00_handle_queue_full(sdev, qdepth);
1345                 break;
1346         case SCSI_QDEPTH_RAMP_UP:
1347                 qla2x00_adjust_sdev_qdepth_up(sdev, qdepth);
1348                 break;
1349         default:
1350                 return -EOPNOTSUPP;
1351         }
1352
1353         return sdev->queue_depth;
1354 }
1355
1356 static int
1357 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1358 {
1359         if (sdev->tagged_supported) {
1360                 scsi_set_tag_type(sdev, tag_type);
1361                 if (tag_type)
1362                         scsi_activate_tcq(sdev, sdev->queue_depth);
1363                 else
1364                         scsi_deactivate_tcq(sdev, sdev->queue_depth);
1365         } else
1366                 tag_type = 0;
1367
1368         return tag_type;
1369 }
1370
1371 /**
1372  * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1373  * @ha: HA context
1374  *
1375  * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1376  * supported addressing method.
1377  */
1378 static void
1379 qla2x00_config_dma_addressing(struct qla_hw_data *ha)
1380 {
1381         /* Assume a 32bit DMA mask. */
1382         ha->flags.enable_64bit_addressing = 0;
1383
1384         if (!dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(64))) {
1385                 /* Any upper-dword bits set? */
1386                 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1387                     !pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
1388                         /* Ok, a 64bit DMA mask is applicable. */
1389                         ha->flags.enable_64bit_addressing = 1;
1390                         ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1391                         ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1392                         return;
1393                 }
1394         }
1395
1396         dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(32));
1397         pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(32));
1398 }
1399
1400 static void
1401 qla2x00_enable_intrs(struct qla_hw_data *ha)
1402 {
1403         unsigned long flags = 0;
1404         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1405
1406         spin_lock_irqsave(&ha->hardware_lock, flags);
1407         ha->interrupts_on = 1;
1408         /* enable risc and host interrupts */
1409         WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1410         RD_REG_WORD(&reg->ictrl);
1411         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1412
1413 }
1414
1415 static void
1416 qla2x00_disable_intrs(struct qla_hw_data *ha)
1417 {
1418         unsigned long flags = 0;
1419         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1420
1421         spin_lock_irqsave(&ha->hardware_lock, flags);
1422         ha->interrupts_on = 0;
1423         /* disable risc and host interrupts */
1424         WRT_REG_WORD(&reg->ictrl, 0);
1425         RD_REG_WORD(&reg->ictrl);
1426         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1427 }
1428
1429 static void
1430 qla24xx_enable_intrs(struct qla_hw_data *ha)
1431 {
1432         unsigned long flags = 0;
1433         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1434
1435         spin_lock_irqsave(&ha->hardware_lock, flags);
1436         ha->interrupts_on = 1;
1437         WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1438         RD_REG_DWORD(&reg->ictrl);
1439         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1440 }
1441
1442 static void
1443 qla24xx_disable_intrs(struct qla_hw_data *ha)
1444 {
1445         unsigned long flags = 0;
1446         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1447
1448         if (IS_NOPOLLING_TYPE(ha))
1449                 return;
1450         spin_lock_irqsave(&ha->hardware_lock, flags);
1451         ha->interrupts_on = 0;
1452         WRT_REG_DWORD(&reg->ictrl, 0);
1453         RD_REG_DWORD(&reg->ictrl);
1454         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1455 }
1456
1457 static struct isp_operations qla2100_isp_ops = {
1458         .pci_config             = qla2100_pci_config,
1459         .reset_chip             = qla2x00_reset_chip,
1460         .chip_diag              = qla2x00_chip_diag,
1461         .config_rings           = qla2x00_config_rings,
1462         .reset_adapter          = qla2x00_reset_adapter,
1463         .nvram_config           = qla2x00_nvram_config,
1464         .update_fw_options      = qla2x00_update_fw_options,
1465         .load_risc              = qla2x00_load_risc,
1466         .pci_info_str           = qla2x00_pci_info_str,
1467         .fw_version_str         = qla2x00_fw_version_str,
1468         .intr_handler           = qla2100_intr_handler,
1469         .enable_intrs           = qla2x00_enable_intrs,
1470         .disable_intrs          = qla2x00_disable_intrs,
1471         .abort_command          = qla2x00_abort_command,
1472         .target_reset           = qla2x00_abort_target,
1473         .lun_reset              = qla2x00_lun_reset,
1474         .fabric_login           = qla2x00_login_fabric,
1475         .fabric_logout          = qla2x00_fabric_logout,
1476         .calc_req_entries       = qla2x00_calc_iocbs_32,
1477         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1478         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1479         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1480         .read_nvram             = qla2x00_read_nvram_data,
1481         .write_nvram            = qla2x00_write_nvram_data,
1482         .fw_dump                = qla2100_fw_dump,
1483         .beacon_on              = NULL,
1484         .beacon_off             = NULL,
1485         .beacon_blink           = NULL,
1486         .read_optrom            = qla2x00_read_optrom_data,
1487         .write_optrom           = qla2x00_write_optrom_data,
1488         .get_flash_version      = qla2x00_get_flash_version,
1489         .start_scsi             = qla2x00_start_scsi,
1490         .abort_isp              = qla2x00_abort_isp,
1491 };
1492
1493 static struct isp_operations qla2300_isp_ops = {
1494         .pci_config             = qla2300_pci_config,
1495         .reset_chip             = qla2x00_reset_chip,
1496         .chip_diag              = qla2x00_chip_diag,
1497         .config_rings           = qla2x00_config_rings,
1498         .reset_adapter          = qla2x00_reset_adapter,
1499         .nvram_config           = qla2x00_nvram_config,
1500         .update_fw_options      = qla2x00_update_fw_options,
1501         .load_risc              = qla2x00_load_risc,
1502         .pci_info_str           = qla2x00_pci_info_str,
1503         .fw_version_str         = qla2x00_fw_version_str,
1504         .intr_handler           = qla2300_intr_handler,
1505         .enable_intrs           = qla2x00_enable_intrs,
1506         .disable_intrs          = qla2x00_disable_intrs,
1507         .abort_command          = qla2x00_abort_command,
1508         .target_reset           = qla2x00_abort_target,
1509         .lun_reset              = qla2x00_lun_reset,
1510         .fabric_login           = qla2x00_login_fabric,
1511         .fabric_logout          = qla2x00_fabric_logout,
1512         .calc_req_entries       = qla2x00_calc_iocbs_32,
1513         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1514         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1515         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1516         .read_nvram             = qla2x00_read_nvram_data,
1517         .write_nvram            = qla2x00_write_nvram_data,
1518         .fw_dump                = qla2300_fw_dump,
1519         .beacon_on              = qla2x00_beacon_on,
1520         .beacon_off             = qla2x00_beacon_off,
1521         .beacon_blink           = qla2x00_beacon_blink,
1522         .read_optrom            = qla2x00_read_optrom_data,
1523         .write_optrom           = qla2x00_write_optrom_data,
1524         .get_flash_version      = qla2x00_get_flash_version,
1525         .start_scsi             = qla2x00_start_scsi,
1526         .abort_isp              = qla2x00_abort_isp,
1527 };
1528
1529 static struct isp_operations qla24xx_isp_ops = {
1530         .pci_config             = qla24xx_pci_config,
1531         .reset_chip             = qla24xx_reset_chip,
1532         .chip_diag              = qla24xx_chip_diag,
1533         .config_rings           = qla24xx_config_rings,
1534         .reset_adapter          = qla24xx_reset_adapter,
1535         .nvram_config           = qla24xx_nvram_config,
1536         .update_fw_options      = qla24xx_update_fw_options,
1537         .load_risc              = qla24xx_load_risc,
1538         .pci_info_str           = qla24xx_pci_info_str,
1539         .fw_version_str         = qla24xx_fw_version_str,
1540         .intr_handler           = qla24xx_intr_handler,
1541         .enable_intrs           = qla24xx_enable_intrs,
1542         .disable_intrs          = qla24xx_disable_intrs,
1543         .abort_command          = qla24xx_abort_command,
1544         .target_reset           = qla24xx_abort_target,
1545         .lun_reset              = qla24xx_lun_reset,
1546         .fabric_login           = qla24xx_login_fabric,
1547         .fabric_logout          = qla24xx_fabric_logout,
1548         .calc_req_entries       = NULL,
1549         .build_iocbs            = NULL,
1550         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1551         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1552         .read_nvram             = qla24xx_read_nvram_data,
1553         .write_nvram            = qla24xx_write_nvram_data,
1554         .fw_dump                = qla24xx_fw_dump,
1555         .beacon_on              = qla24xx_beacon_on,
1556         .beacon_off             = qla24xx_beacon_off,
1557         .beacon_blink           = qla24xx_beacon_blink,
1558         .read_optrom            = qla24xx_read_optrom_data,
1559         .write_optrom           = qla24xx_write_optrom_data,
1560         .get_flash_version      = qla24xx_get_flash_version,
1561         .start_scsi             = qla24xx_start_scsi,
1562         .abort_isp              = qla2x00_abort_isp,
1563 };
1564
1565 static struct isp_operations qla25xx_isp_ops = {
1566         .pci_config             = qla25xx_pci_config,
1567         .reset_chip             = qla24xx_reset_chip,
1568         .chip_diag              = qla24xx_chip_diag,
1569         .config_rings           = qla24xx_config_rings,
1570         .reset_adapter          = qla24xx_reset_adapter,
1571         .nvram_config           = qla24xx_nvram_config,
1572         .update_fw_options      = qla24xx_update_fw_options,
1573         .load_risc              = qla24xx_load_risc,
1574         .pci_info_str           = qla24xx_pci_info_str,
1575         .fw_version_str         = qla24xx_fw_version_str,
1576         .intr_handler           = qla24xx_intr_handler,
1577         .enable_intrs           = qla24xx_enable_intrs,
1578         .disable_intrs          = qla24xx_disable_intrs,
1579         .abort_command          = qla24xx_abort_command,
1580         .target_reset           = qla24xx_abort_target,
1581         .lun_reset              = qla24xx_lun_reset,
1582         .fabric_login           = qla24xx_login_fabric,
1583         .fabric_logout          = qla24xx_fabric_logout,
1584         .calc_req_entries       = NULL,
1585         .build_iocbs            = NULL,
1586         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1587         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1588         .read_nvram             = qla25xx_read_nvram_data,
1589         .write_nvram            = qla25xx_write_nvram_data,
1590         .fw_dump                = qla25xx_fw_dump,
1591         .beacon_on              = qla24xx_beacon_on,
1592         .beacon_off             = qla24xx_beacon_off,
1593         .beacon_blink           = qla24xx_beacon_blink,
1594         .read_optrom            = qla25xx_read_optrom_data,
1595         .write_optrom           = qla24xx_write_optrom_data,
1596         .get_flash_version      = qla24xx_get_flash_version,
1597         .start_scsi             = qla24xx_dif_start_scsi,
1598         .abort_isp              = qla2x00_abort_isp,
1599 };
1600
1601 static struct isp_operations qla81xx_isp_ops = {
1602         .pci_config             = qla25xx_pci_config,
1603         .reset_chip             = qla24xx_reset_chip,
1604         .chip_diag              = qla24xx_chip_diag,
1605         .config_rings           = qla24xx_config_rings,
1606         .reset_adapter          = qla24xx_reset_adapter,
1607         .nvram_config           = qla81xx_nvram_config,
1608         .update_fw_options      = qla81xx_update_fw_options,
1609         .load_risc              = qla81xx_load_risc,
1610         .pci_info_str           = qla24xx_pci_info_str,
1611         .fw_version_str         = qla24xx_fw_version_str,
1612         .intr_handler           = qla24xx_intr_handler,
1613         .enable_intrs           = qla24xx_enable_intrs,
1614         .disable_intrs          = qla24xx_disable_intrs,
1615         .abort_command          = qla24xx_abort_command,
1616         .target_reset           = qla24xx_abort_target,
1617         .lun_reset              = qla24xx_lun_reset,
1618         .fabric_login           = qla24xx_login_fabric,
1619         .fabric_logout          = qla24xx_fabric_logout,
1620         .calc_req_entries       = NULL,
1621         .build_iocbs            = NULL,
1622         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1623         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1624         .read_nvram             = NULL,
1625         .write_nvram            = NULL,
1626         .fw_dump                = qla81xx_fw_dump,
1627         .beacon_on              = qla24xx_beacon_on,
1628         .beacon_off             = qla24xx_beacon_off,
1629         .beacon_blink           = qla24xx_beacon_blink,
1630         .read_optrom            = qla25xx_read_optrom_data,
1631         .write_optrom           = qla24xx_write_optrom_data,
1632         .get_flash_version      = qla24xx_get_flash_version,
1633         .start_scsi             = qla24xx_dif_start_scsi,
1634         .abort_isp              = qla2x00_abort_isp,
1635 };
1636
1637 static struct isp_operations qla82xx_isp_ops = {
1638         .pci_config             = qla82xx_pci_config,
1639         .reset_chip             = qla82xx_reset_chip,
1640         .chip_diag              = qla24xx_chip_diag,
1641         .config_rings           = qla82xx_config_rings,
1642         .reset_adapter          = qla24xx_reset_adapter,
1643         .nvram_config           = qla81xx_nvram_config,
1644         .update_fw_options      = qla24xx_update_fw_options,
1645         .load_risc              = qla82xx_load_risc,
1646         .pci_info_str           = qla82xx_pci_info_str,
1647         .fw_version_str         = qla24xx_fw_version_str,
1648         .intr_handler           = qla82xx_intr_handler,
1649         .enable_intrs           = qla82xx_enable_intrs,
1650         .disable_intrs          = qla82xx_disable_intrs,
1651         .abort_command          = qla24xx_abort_command,
1652         .target_reset           = qla24xx_abort_target,
1653         .lun_reset              = qla24xx_lun_reset,
1654         .fabric_login           = qla24xx_login_fabric,
1655         .fabric_logout          = qla24xx_fabric_logout,
1656         .calc_req_entries       = NULL,
1657         .build_iocbs            = NULL,
1658         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1659         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1660         .read_nvram             = qla24xx_read_nvram_data,
1661         .write_nvram            = qla24xx_write_nvram_data,
1662         .fw_dump                = qla24xx_fw_dump,
1663         .beacon_on              = qla24xx_beacon_on,
1664         .beacon_off             = qla24xx_beacon_off,
1665         .beacon_blink           = qla24xx_beacon_blink,
1666         .read_optrom            = qla82xx_read_optrom_data,
1667         .write_optrom           = qla82xx_write_optrom_data,
1668         .get_flash_version      = qla24xx_get_flash_version,
1669         .start_scsi             = qla82xx_start_scsi,
1670         .abort_isp              = qla82xx_abort_isp,
1671 };
1672
1673 static inline void
1674 qla2x00_set_isp_flags(struct qla_hw_data *ha)
1675 {
1676         ha->device_type = DT_EXTENDED_IDS;
1677         switch (ha->pdev->device) {
1678         case PCI_DEVICE_ID_QLOGIC_ISP2100:
1679                 ha->device_type |= DT_ISP2100;
1680                 ha->device_type &= ~DT_EXTENDED_IDS;
1681                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1682                 break;
1683         case PCI_DEVICE_ID_QLOGIC_ISP2200:
1684                 ha->device_type |= DT_ISP2200;
1685                 ha->device_type &= ~DT_EXTENDED_IDS;
1686                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1687                 break;
1688         case PCI_DEVICE_ID_QLOGIC_ISP2300:
1689                 ha->device_type |= DT_ISP2300;
1690                 ha->device_type |= DT_ZIO_SUPPORTED;
1691                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1692                 break;
1693         case PCI_DEVICE_ID_QLOGIC_ISP2312:
1694                 ha->device_type |= DT_ISP2312;
1695                 ha->device_type |= DT_ZIO_SUPPORTED;
1696                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1697                 break;
1698         case PCI_DEVICE_ID_QLOGIC_ISP2322:
1699                 ha->device_type |= DT_ISP2322;
1700                 ha->device_type |= DT_ZIO_SUPPORTED;
1701                 if (ha->pdev->subsystem_vendor == 0x1028 &&
1702                     ha->pdev->subsystem_device == 0x0170)
1703                         ha->device_type |= DT_OEM_001;
1704                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1705                 break;
1706         case PCI_DEVICE_ID_QLOGIC_ISP6312:
1707                 ha->device_type |= DT_ISP6312;
1708                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1709                 break;
1710         case PCI_DEVICE_ID_QLOGIC_ISP6322:
1711                 ha->device_type |= DT_ISP6322;
1712                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1713                 break;
1714         case PCI_DEVICE_ID_QLOGIC_ISP2422:
1715                 ha->device_type |= DT_ISP2422;
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_ISP2432:
1722                 ha->device_type |= DT_ISP2432;
1723                 ha->device_type |= DT_ZIO_SUPPORTED;
1724                 ha->device_type |= DT_FWI2;
1725                 ha->device_type |= DT_IIDMA;
1726                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1727                 break;
1728         case PCI_DEVICE_ID_QLOGIC_ISP8432:
1729                 ha->device_type |= DT_ISP8432;
1730                 ha->device_type |= DT_ZIO_SUPPORTED;
1731                 ha->device_type |= DT_FWI2;
1732                 ha->device_type |= DT_IIDMA;
1733                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1734                 break;
1735         case PCI_DEVICE_ID_QLOGIC_ISP5422:
1736                 ha->device_type |= DT_ISP5422;
1737                 ha->device_type |= DT_FWI2;
1738                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1739                 break;
1740         case PCI_DEVICE_ID_QLOGIC_ISP5432:
1741                 ha->device_type |= DT_ISP5432;
1742                 ha->device_type |= DT_FWI2;
1743                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1744                 break;
1745         case PCI_DEVICE_ID_QLOGIC_ISP2532:
1746                 ha->device_type |= DT_ISP2532;
1747                 ha->device_type |= DT_ZIO_SUPPORTED;
1748                 ha->device_type |= DT_FWI2;
1749                 ha->device_type |= DT_IIDMA;
1750                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1751                 break;
1752         case PCI_DEVICE_ID_QLOGIC_ISP8001:
1753                 ha->device_type |= DT_ISP8001;
1754                 ha->device_type |= DT_ZIO_SUPPORTED;
1755                 ha->device_type |= DT_FWI2;
1756                 ha->device_type |= DT_IIDMA;
1757                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1758                 break;
1759         case PCI_DEVICE_ID_QLOGIC_ISP8021:
1760                 ha->device_type |= DT_ISP8021;
1761                 ha->device_type |= DT_ZIO_SUPPORTED;
1762                 ha->device_type |= DT_FWI2;
1763                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1764                 /* Initialize 82XX ISP flags */
1765                 qla82xx_init_flags(ha);
1766                 break;
1767         }
1768
1769         if (IS_QLA82XX(ha))
1770                 ha->port_no = !(ha->portnum & 1);
1771         else
1772                 /* Get adapter physical port no from interrupt pin register. */
1773                 pci_read_config_byte(ha->pdev, PCI_INTERRUPT_PIN, &ha->port_no);
1774
1775         if (ha->port_no & 1)
1776                 ha->flags.port0 = 1;
1777         else
1778                 ha->flags.port0 = 0;
1779 }
1780
1781 static int
1782 qla2x00_iospace_config(struct qla_hw_data *ha)
1783 {
1784         resource_size_t pio;
1785         uint16_t msix;
1786         int cpus;
1787
1788         if (IS_QLA82XX(ha))
1789                 return qla82xx_iospace_config(ha);
1790
1791         if (pci_request_selected_regions(ha->pdev, ha->bars,
1792             QLA2XXX_DRIVER_NAME)) {
1793                 qla_printk(KERN_WARNING, ha,
1794                     "Failed to reserve PIO/MMIO regions (%s)\n",
1795                     pci_name(ha->pdev));
1796
1797                 goto iospace_error_exit;
1798         }
1799         if (!(ha->bars & 1))
1800                 goto skip_pio;
1801
1802         /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1803         pio = pci_resource_start(ha->pdev, 0);
1804         if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
1805                 if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1806                         qla_printk(KERN_WARNING, ha,
1807                             "Invalid PCI I/O region size (%s)...\n",
1808                                 pci_name(ha->pdev));
1809                         pio = 0;
1810                 }
1811         } else {
1812                 qla_printk(KERN_WARNING, ha,
1813                     "region #0 not a PIO resource (%s)...\n",
1814                     pci_name(ha->pdev));
1815                 pio = 0;
1816         }
1817         ha->pio_address = pio;
1818
1819 skip_pio:
1820         /* Use MMIO operations for all accesses. */
1821         if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
1822                 qla_printk(KERN_ERR, ha,
1823                     "region #1 not an MMIO resource (%s), aborting\n",
1824                     pci_name(ha->pdev));
1825                 goto iospace_error_exit;
1826         }
1827         if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
1828                 qla_printk(KERN_ERR, ha,
1829                     "Invalid PCI mem region size (%s), aborting\n",
1830                         pci_name(ha->pdev));
1831                 goto iospace_error_exit;
1832         }
1833
1834         ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
1835         if (!ha->iobase) {
1836                 qla_printk(KERN_ERR, ha,
1837                     "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1838
1839                 goto iospace_error_exit;
1840         }
1841
1842         /* Determine queue resources */
1843         ha->max_req_queues = ha->max_rsp_queues = 1;
1844         if ((ql2xmaxqueues <= 1 && !ql2xmultique_tag) ||
1845                 (ql2xmaxqueues > 1 && ql2xmultique_tag) ||
1846                 (!IS_QLA25XX(ha) && !IS_QLA81XX(ha)))
1847                 goto mqiobase_exit;
1848
1849         ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 3),
1850                         pci_resource_len(ha->pdev, 3));
1851         if (ha->mqiobase) {
1852                 /* Read MSIX vector size of the board */
1853                 pci_read_config_word(ha->pdev, QLA_PCI_MSIX_CONTROL, &msix);
1854                 ha->msix_count = msix;
1855                 /* Max queues are bounded by available msix vectors */
1856                 /* queue 0 uses two msix vectors */
1857                 if (ql2xmultique_tag) {
1858                         cpus = num_online_cpus();
1859                         ha->max_rsp_queues = (ha->msix_count - 1 > cpus) ?
1860                                 (cpus + 1) : (ha->msix_count - 1);
1861                         ha->max_req_queues = 2;
1862                 } else if (ql2xmaxqueues > 1) {
1863                         ha->max_req_queues = ql2xmaxqueues > QLA_MQ_SIZE ?
1864                                                 QLA_MQ_SIZE : ql2xmaxqueues;
1865                         DEBUG2(qla_printk(KERN_INFO, ha, "QoS mode set, max no"
1866                         " of request queues:%d\n", ha->max_req_queues));
1867                 }
1868                 qla_printk(KERN_INFO, ha,
1869                         "MSI-X vector count: %d\n", msix);
1870         } else
1871                 qla_printk(KERN_INFO, ha, "BAR 3 not enabled\n");
1872
1873 mqiobase_exit:
1874         ha->msix_count = ha->max_rsp_queues + 1;
1875         return (0);
1876
1877 iospace_error_exit:
1878         return (-ENOMEM);
1879 }
1880
1881 static void
1882 qla2xxx_scan_start(struct Scsi_Host *shost)
1883 {
1884         scsi_qla_host_t *vha = shost_priv(shost);
1885
1886         if (vha->hw->flags.running_gold_fw)
1887                 return;
1888
1889         set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1890         set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1891         set_bit(RSCN_UPDATE, &vha->dpc_flags);
1892         set_bit(NPIV_CONFIG_NEEDED, &vha->dpc_flags);
1893 }
1894
1895 static int
1896 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1897 {
1898         scsi_qla_host_t *vha = shost_priv(shost);
1899
1900         if (!vha->host)
1901                 return 1;
1902         if (time > vha->hw->loop_reset_delay * HZ)
1903                 return 1;
1904
1905         return atomic_read(&vha->loop_state) == LOOP_READY;
1906 }
1907
1908 /*
1909  * PCI driver interface
1910  */
1911 static int __devinit
1912 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1913 {
1914         int     ret = -ENODEV;
1915         struct Scsi_Host *host;
1916         scsi_qla_host_t *base_vha = NULL;
1917         struct qla_hw_data *ha;
1918         char pci_info[30];
1919         char fw_str[30];
1920         struct scsi_host_template *sht;
1921         int bars, max_id, mem_only = 0;
1922         uint16_t req_length = 0, rsp_length = 0;
1923         struct req_que *req = NULL;
1924         struct rsp_que *rsp = NULL;
1925
1926         bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
1927         sht = &qla2xxx_driver_template;
1928         if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1929             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1930             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8432 ||
1931             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1932             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
1933             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532 ||
1934             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8001 ||
1935             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8021) {
1936                 bars = pci_select_bars(pdev, IORESOURCE_MEM);
1937                 mem_only = 1;
1938         }
1939
1940         if (mem_only) {
1941                 if (pci_enable_device_mem(pdev))
1942                         goto probe_out;
1943         } else {
1944                 if (pci_enable_device(pdev))
1945                         goto probe_out;
1946         }
1947
1948         /* This may fail but that's ok */
1949         pci_enable_pcie_error_reporting(pdev);
1950
1951         ha = kzalloc(sizeof(struct qla_hw_data), GFP_KERNEL);
1952         if (!ha) {
1953                 DEBUG(printk("Unable to allocate memory for ha\n"));
1954                 goto probe_out;
1955         }
1956         ha->pdev = pdev;
1957
1958         /* Clear our data area */
1959         ha->bars = bars;
1960         ha->mem_only = mem_only;
1961         spin_lock_init(&ha->hardware_lock);
1962         spin_lock_init(&ha->vport_slock);
1963
1964         /* Set ISP-type information. */
1965         qla2x00_set_isp_flags(ha);
1966
1967         /* Set EEH reset type to fundamental if required by hba */
1968         if ( IS_QLA24XX(ha) || IS_QLA25XX(ha) || IS_QLA81XX(ha)) {
1969                 pdev->needs_freset = 1;
1970         }
1971
1972         /* Configure PCI I/O space */
1973         ret = qla2x00_iospace_config(ha);
1974         if (ret)
1975                 goto probe_hw_failed;
1976
1977         qla_printk(KERN_INFO, ha,
1978             "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1979             ha->iobase);
1980
1981         ha->prev_topology = 0;
1982         ha->init_cb_size = sizeof(init_cb_t);
1983         ha->link_data_rate = PORT_SPEED_UNKNOWN;
1984         ha->optrom_size = OPTROM_SIZE_2300;
1985
1986         /* Assign ISP specific operations. */
1987         max_id = MAX_TARGETS_2200;
1988         if (IS_QLA2100(ha)) {
1989                 max_id = MAX_TARGETS_2100;
1990                 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1991                 req_length = REQUEST_ENTRY_CNT_2100;
1992                 rsp_length = RESPONSE_ENTRY_CNT_2100;
1993                 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
1994                 ha->gid_list_info_size = 4;
1995                 ha->flash_conf_off = ~0;
1996                 ha->flash_data_off = ~0;
1997                 ha->nvram_conf_off = ~0;
1998                 ha->nvram_data_off = ~0;
1999                 ha->isp_ops = &qla2100_isp_ops;
2000         } else if (IS_QLA2200(ha)) {
2001                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2002                 req_length = REQUEST_ENTRY_CNT_2200;
2003                 rsp_length = RESPONSE_ENTRY_CNT_2100;
2004                 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
2005                 ha->gid_list_info_size = 4;
2006                 ha->flash_conf_off = ~0;
2007                 ha->flash_data_off = ~0;
2008                 ha->nvram_conf_off = ~0;
2009                 ha->nvram_data_off = ~0;
2010                 ha->isp_ops = &qla2100_isp_ops;
2011         } else if (IS_QLA23XX(ha)) {
2012                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2013                 req_length = REQUEST_ENTRY_CNT_2200;
2014                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2015                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2016                 ha->gid_list_info_size = 6;
2017                 if (IS_QLA2322(ha) || IS_QLA6322(ha))
2018                         ha->optrom_size = OPTROM_SIZE_2322;
2019                 ha->flash_conf_off = ~0;
2020                 ha->flash_data_off = ~0;
2021                 ha->nvram_conf_off = ~0;
2022                 ha->nvram_data_off = ~0;
2023                 ha->isp_ops = &qla2300_isp_ops;
2024         } else if (IS_QLA24XX_TYPE(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_24XX;
2032                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA24XX;
2033                 ha->isp_ops = &qla24xx_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_QLA25XX(ha)) {
2039                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2040                 req_length = REQUEST_ENTRY_CNT_24XX;
2041                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2042                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2043                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
2044                 ha->gid_list_info_size = 8;
2045                 ha->optrom_size = OPTROM_SIZE_25XX;
2046                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2047                 ha->isp_ops = &qla25xx_isp_ops;
2048                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2049                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2050                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2051                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2052         } else if (IS_QLA81XX(ha)) {
2053                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2054                 req_length = REQUEST_ENTRY_CNT_24XX;
2055                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2056                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2057                 ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2058                 ha->gid_list_info_size = 8;
2059                 ha->optrom_size = OPTROM_SIZE_81XX;
2060                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2061                 ha->isp_ops = &qla81xx_isp_ops;
2062                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
2063                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
2064                 ha->nvram_conf_off = ~0;
2065                 ha->nvram_data_off = ~0;
2066         } else if (IS_QLA82XX(ha)) {
2067                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2068                 req_length = REQUEST_ENTRY_CNT_82XX;
2069                 rsp_length = RESPONSE_ENTRY_CNT_82XX;
2070                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2071                 ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2072                 ha->gid_list_info_size = 8;
2073                 ha->optrom_size = OPTROM_SIZE_82XX;
2074                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2075                 ha->isp_ops = &qla82xx_isp_ops;
2076                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2077                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2078                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2079                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2080         }
2081
2082         mutex_init(&ha->vport_lock);
2083         init_completion(&ha->mbx_cmd_comp);
2084         complete(&ha->mbx_cmd_comp);
2085         init_completion(&ha->mbx_intr_comp);
2086         init_completion(&ha->dcbx_comp);
2087
2088         set_bit(0, (unsigned long *) ha->vp_idx_map);
2089
2090         qla2x00_config_dma_addressing(ha);
2091         ret = qla2x00_mem_alloc(ha, req_length, rsp_length, &req, &rsp);
2092         if (!ret) {
2093                 qla_printk(KERN_WARNING, ha,
2094                     "[ERROR] Failed to allocate memory for adapter\n");
2095
2096                 goto probe_hw_failed;
2097         }
2098
2099         req->max_q_depth = MAX_Q_DEPTH;
2100         if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
2101                 req->max_q_depth = ql2xmaxqdepth;
2102
2103
2104         base_vha = qla2x00_create_host(sht, ha);
2105         if (!base_vha) {
2106                 qla_printk(KERN_WARNING, ha,
2107                     "[ERROR] Failed to allocate memory for scsi_host\n");
2108
2109                 ret = -ENOMEM;
2110                 qla2x00_mem_free(ha);
2111                 qla2x00_free_req_que(ha, req);
2112                 qla2x00_free_rsp_que(ha, rsp);
2113                 goto probe_hw_failed;
2114         }
2115
2116         pci_set_drvdata(pdev, base_vha);
2117
2118         host = base_vha->host;
2119         base_vha->req = req;
2120         host->can_queue = req->length + 128;
2121         if (IS_QLA2XXX_MIDTYPE(ha))
2122                 base_vha->mgmt_svr_loop_id = 10 + base_vha->vp_idx;
2123         else
2124                 base_vha->mgmt_svr_loop_id = MANAGEMENT_SERVER +
2125                                                 base_vha->vp_idx;
2126
2127         /* Set the SG table size based on ISP type */
2128         if (!IS_FWI2_CAPABLE(ha)) {
2129                 if (IS_QLA2100(ha))
2130                         host->sg_tablesize = 32;
2131         } else {
2132                 if (!IS_QLA82XX(ha))
2133                         host->sg_tablesize = QLA_SG_ALL;
2134         }
2135
2136         host->max_id = max_id;
2137         host->this_id = 255;
2138         host->cmd_per_lun = 3;
2139         host->unique_id = host->host_no;
2140         if ((IS_QLA25XX(ha) || IS_QLA81XX(ha)) && ql2xenabledif)
2141                 host->max_cmd_len = 32;
2142         else
2143                 host->max_cmd_len = MAX_CMDSZ;
2144         host->max_channel = MAX_BUSES - 1;
2145         host->max_lun = ql2xmaxlun;
2146         host->transportt = qla2xxx_transport_template;
2147         sht->vendor_id = (SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC);
2148
2149         /* Set up the irqs */
2150         ret = qla2x00_request_irqs(ha, rsp);
2151         if (ret)
2152                 goto probe_init_failed;
2153
2154         pci_save_state(pdev);
2155
2156         /* Alloc arrays of request and response ring ptrs */
2157 que_init:
2158         if (!qla2x00_alloc_queues(ha)) {
2159                 qla_printk(KERN_WARNING, ha,
2160                 "[ERROR] Failed to allocate memory for queue"
2161                 " pointers\n");
2162                 goto probe_init_failed;
2163         }
2164
2165         ha->rsp_q_map[0] = rsp;
2166         ha->req_q_map[0] = req;
2167         rsp->req = req;
2168         req->rsp = rsp;
2169         set_bit(0, ha->req_qid_map);
2170         set_bit(0, ha->rsp_qid_map);
2171         /* FWI2-capable only. */
2172         req->req_q_in = &ha->iobase->isp24.req_q_in;
2173         req->req_q_out = &ha->iobase->isp24.req_q_out;
2174         rsp->rsp_q_in = &ha->iobase->isp24.rsp_q_in;
2175         rsp->rsp_q_out = &ha->iobase->isp24.rsp_q_out;
2176         if (ha->mqenable) {
2177                 req->req_q_in = &ha->mqiobase->isp25mq.req_q_in;
2178                 req->req_q_out = &ha->mqiobase->isp25mq.req_q_out;
2179                 rsp->rsp_q_in = &ha->mqiobase->isp25mq.rsp_q_in;
2180                 rsp->rsp_q_out =  &ha->mqiobase->isp25mq.rsp_q_out;
2181         }
2182
2183         if (IS_QLA82XX(ha)) {
2184                 req->req_q_out = &ha->iobase->isp82.req_q_out[0];
2185                 rsp->rsp_q_in = &ha->iobase->isp82.rsp_q_in[0];
2186                 rsp->rsp_q_out = &ha->iobase->isp82.rsp_q_out[0];
2187         }
2188
2189         if (qla2x00_initialize_adapter(base_vha)) {
2190                 qla_printk(KERN_WARNING, ha,
2191                     "Failed to initialize adapter\n");
2192
2193                 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
2194                     "Adapter flags %x.\n",
2195                     base_vha->host_no, base_vha->device_flags));
2196
2197                 if (IS_QLA82XX(ha)) {
2198                         qla82xx_idc_lock(ha);
2199                         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
2200                                 QLA82XX_DEV_FAILED);
2201                         qla82xx_idc_unlock(ha);
2202                         qla_printk(KERN_INFO, ha, "HW State: FAILED\n");
2203                 }
2204
2205                 ret = -ENODEV;
2206                 goto probe_failed;
2207         }
2208
2209         if (ha->mqenable) {
2210                 if (qla25xx_setup_mode(base_vha)) {
2211                         qla_printk(KERN_WARNING, ha,
2212                                 "Can't create queues, falling back to single"
2213                                 " queue mode\n");
2214                         goto que_init;
2215                 }
2216         }
2217
2218         if (ha->flags.running_gold_fw)
2219                 goto skip_dpc;
2220
2221         /*
2222          * Startup the kernel thread for this host adapter
2223          */
2224         ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
2225                         "%s_dpc", base_vha->host_str);
2226         if (IS_ERR(ha->dpc_thread)) {
2227                 qla_printk(KERN_WARNING, ha,
2228                     "Unable to start DPC thread!\n");
2229                 ret = PTR_ERR(ha->dpc_thread);
2230                 goto probe_failed;
2231         }
2232
2233 skip_dpc:
2234         list_add_tail(&base_vha->list, &ha->vp_list);
2235         base_vha->host->irq = ha->pdev->irq;
2236
2237         /* Initialized the timer */
2238         qla2x00_start_timer(base_vha, qla2x00_timer, WATCH_INTERVAL);
2239
2240         DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
2241             base_vha->host_no, ha));
2242
2243         if ((IS_QLA25XX(ha) || IS_QLA81XX(ha)) && ql2xenabledif) {
2244                 if (ha->fw_attributes & BIT_4) {
2245                         base_vha->flags.difdix_supported = 1;
2246                         DEBUG18(qla_printk(KERN_INFO, ha,
2247                             "Registering for DIF/DIX type 1 and 3"
2248                             " protection.\n"));
2249                         scsi_host_set_prot(host,
2250                             SHOST_DIF_TYPE1_PROTECTION
2251                             | SHOST_DIF_TYPE2_PROTECTION
2252                             | SHOST_DIF_TYPE3_PROTECTION
2253                             | SHOST_DIX_TYPE1_PROTECTION
2254                             | SHOST_DIX_TYPE2_PROTECTION
2255                             | SHOST_DIX_TYPE3_PROTECTION);
2256                         scsi_host_set_guard(host, SHOST_DIX_GUARD_CRC);
2257                 } else
2258                         base_vha->flags.difdix_supported = 0;
2259         }
2260
2261         ha->isp_ops->enable_intrs(ha);
2262
2263         ret = scsi_add_host(host, &pdev->dev);
2264         if (ret)
2265                 goto probe_failed;
2266
2267         base_vha->flags.init_done = 1;
2268         base_vha->flags.online = 1;
2269
2270         scsi_scan_host(host);
2271
2272         qla2x00_alloc_sysfs_attr(base_vha);
2273
2274         qla2x00_init_host_attr(base_vha);
2275
2276         qla2x00_dfs_setup(base_vha);
2277
2278         qla_printk(KERN_INFO, ha, "\n"
2279             " QLogic Fibre Channel HBA Driver: %s\n"
2280             "  QLogic %s - %s\n"
2281             "  ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
2282             qla2x00_version_str, ha->model_number,
2283             ha->model_desc ? ha->model_desc : "", pdev->device,
2284             ha->isp_ops->pci_info_str(base_vha, pci_info), pci_name(pdev),
2285             ha->flags.enable_64bit_addressing ? '+' : '-', base_vha->host_no,
2286             ha->isp_ops->fw_version_str(base_vha, fw_str));
2287
2288         return 0;
2289
2290 probe_init_failed:
2291         qla2x00_free_req_que(ha, req);
2292         qla2x00_free_rsp_que(ha, rsp);
2293         ha->max_req_queues = ha->max_rsp_queues = 0;
2294
2295 probe_failed:
2296         if (base_vha->timer_active)
2297                 qla2x00_stop_timer(base_vha);
2298         base_vha->flags.online = 0;
2299         if (ha->dpc_thread) {
2300                 struct task_struct *t = ha->dpc_thread;
2301
2302                 ha->dpc_thread = NULL;
2303                 kthread_stop(t);
2304         }
2305
2306         qla2x00_free_device(base_vha);
2307
2308         scsi_host_put(base_vha->host);
2309
2310 probe_hw_failed:
2311         if (IS_QLA82XX(ha)) {
2312                 qla82xx_idc_lock(ha);
2313                 qla82xx_clear_drv_active(ha);
2314                 qla82xx_idc_unlock(ha);
2315                 iounmap((device_reg_t __iomem *)ha->nx_pcibase);
2316                 if (!ql2xdbwr)
2317                         iounmap((device_reg_t __iomem *)ha->nxdb_wr_ptr);
2318         } else {
2319                 if (ha->iobase)
2320                         iounmap(ha->iobase);
2321         }
2322         pci_release_selected_regions(ha->pdev, ha->bars);
2323         kfree(ha);
2324         ha = NULL;
2325
2326 probe_out:
2327         pci_disable_device(pdev);
2328         return ret;
2329 }
2330
2331 static void
2332 qla2x00_shutdown(struct pci_dev *pdev)
2333 {
2334         scsi_qla_host_t *vha;
2335         struct qla_hw_data  *ha;
2336
2337         vha = pci_get_drvdata(pdev);
2338         ha = vha->hw;
2339
2340         /* Turn-off FCE trace */
2341         if (ha->flags.fce_enabled) {
2342                 qla2x00_disable_fce_trace(vha, NULL, NULL);
2343                 ha->flags.fce_enabled = 0;
2344         }
2345
2346         /* Turn-off EFT trace */
2347         if (ha->eft)
2348                 qla2x00_disable_eft_trace(vha);
2349
2350         /* Stop currently executing firmware. */
2351         qla2x00_try_to_stop_firmware(vha);
2352
2353         /* Turn adapter off line */
2354         vha->flags.online = 0;
2355
2356         /* turn-off interrupts on the card */
2357         if (ha->interrupts_on) {
2358                 vha->flags.init_done = 0;
2359                 ha->isp_ops->disable_intrs(ha);
2360         }
2361
2362         qla2x00_free_irqs(vha);
2363
2364         qla2x00_free_fw_dump(ha);
2365 }
2366
2367 static void
2368 qla2x00_remove_one(struct pci_dev *pdev)
2369 {
2370         scsi_qla_host_t *base_vha, *vha;
2371         struct qla_hw_data  *ha;
2372         unsigned long flags;
2373
2374         base_vha = pci_get_drvdata(pdev);
2375         ha = base_vha->hw;
2376
2377         mutex_lock(&ha->vport_lock);
2378         while (ha->cur_vport_count) {
2379                 struct Scsi_Host *scsi_host;
2380
2381                 spin_lock_irqsave(&ha->vport_slock, flags);
2382
2383                 BUG_ON(base_vha->list.next == &ha->vp_list);
2384                 /* This assumes first entry in ha->vp_list is always base vha */
2385                 vha = list_first_entry(&base_vha->list, scsi_qla_host_t, list);
2386                 scsi_host = scsi_host_get(vha->host);
2387
2388                 spin_unlock_irqrestore(&ha->vport_slock, flags);
2389                 mutex_unlock(&ha->vport_lock);
2390
2391                 fc_vport_terminate(vha->fc_vport);
2392                 scsi_host_put(vha->host);
2393
2394                 mutex_lock(&ha->vport_lock);
2395         }
2396         mutex_unlock(&ha->vport_lock);
2397
2398         set_bit(UNLOADING, &base_vha->dpc_flags);
2399
2400         qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
2401
2402         qla2x00_dfs_remove(base_vha);
2403
2404         qla84xx_put_chip(base_vha);
2405
2406         /* Disable timer */
2407         if (base_vha->timer_active)
2408                 qla2x00_stop_timer(base_vha);
2409
2410         base_vha->flags.online = 0;
2411
2412         /* Flush the work queue and remove it */
2413         if (ha->wq) {
2414                 flush_workqueue(ha->wq);
2415                 destroy_workqueue(ha->wq);
2416                 ha->wq = NULL;
2417         }
2418
2419         /* Kill the kernel thread for this host */
2420         if (ha->dpc_thread) {
2421                 struct task_struct *t = ha->dpc_thread;
2422
2423                 /*
2424                  * qla2xxx_wake_dpc checks for ->dpc_thread
2425                  * so we need to zero it out.
2426                  */
2427                 ha->dpc_thread = NULL;
2428                 kthread_stop(t);
2429         }
2430
2431         qla2x00_free_sysfs_attr(base_vha);
2432
2433         fc_remove_host(base_vha->host);
2434
2435         scsi_remove_host(base_vha->host);
2436
2437         qla2x00_free_device(base_vha);
2438
2439         scsi_host_put(base_vha->host);
2440
2441         if (IS_QLA82XX(ha)) {
2442                 qla82xx_idc_lock(ha);
2443                 qla82xx_clear_drv_active(ha);
2444                 qla82xx_idc_unlock(ha);
2445
2446                 iounmap((device_reg_t __iomem *)ha->nx_pcibase);
2447                 if (!ql2xdbwr)
2448                         iounmap((device_reg_t __iomem *)ha->nxdb_wr_ptr);
2449         } else {
2450                 if (ha->iobase)
2451                         iounmap(ha->iobase);
2452
2453                 if (ha->mqiobase)
2454                         iounmap(ha->mqiobase);
2455         }
2456
2457         pci_release_selected_regions(ha->pdev, ha->bars);
2458         kfree(ha);
2459         ha = NULL;
2460
2461         pci_disable_pcie_error_reporting(pdev);
2462
2463         pci_disable_device(pdev);
2464         pci_set_drvdata(pdev, NULL);
2465 }
2466
2467 static void
2468 qla2x00_free_device(scsi_qla_host_t *vha)
2469 {
2470         struct qla_hw_data *ha = vha->hw;
2471
2472         qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
2473
2474         /* Disable timer */
2475         if (vha->timer_active)
2476                 qla2x00_stop_timer(vha);
2477
2478         /* Kill the kernel thread for this host */
2479         if (ha->dpc_thread) {
2480                 struct task_struct *t = ha->dpc_thread;
2481
2482                 /*
2483                  * qla2xxx_wake_dpc checks for ->dpc_thread
2484                  * so we need to zero it out.
2485                  */
2486                 ha->dpc_thread = NULL;
2487                 kthread_stop(t);
2488         }
2489
2490         qla25xx_delete_queues(vha);
2491
2492         if (ha->flags.fce_enabled)
2493                 qla2x00_disable_fce_trace(vha, NULL, NULL);
2494
2495         if (ha->eft)
2496                 qla2x00_disable_eft_trace(vha);
2497
2498         /* Stop currently executing firmware. */
2499         qla2x00_try_to_stop_firmware(vha);
2500
2501         vha->flags.online = 0;
2502
2503         /* turn-off interrupts on the card */
2504         if (ha->interrupts_on) {
2505                 vha->flags.init_done = 0;
2506                 ha->isp_ops->disable_intrs(ha);
2507         }
2508
2509         qla2x00_free_irqs(vha);
2510
2511         qla2x00_free_fcports(vha);
2512
2513         qla2x00_mem_free(ha);
2514
2515         qla2x00_free_queues(ha);
2516 }
2517
2518 void qla2x00_free_fcports(struct scsi_qla_host *vha)
2519 {
2520         fc_port_t *fcport, *tfcport;
2521
2522         list_for_each_entry_safe(fcport, tfcport, &vha->vp_fcports, list) {
2523                 list_del(&fcport->list);
2524                 kfree(fcport);
2525                 fcport = NULL;
2526         }
2527 }
2528
2529 static inline void
2530 qla2x00_schedule_rport_del(struct scsi_qla_host *vha, fc_port_t *fcport,
2531     int defer)
2532 {
2533         struct fc_rport *rport;
2534         scsi_qla_host_t *base_vha;
2535         unsigned long flags;
2536
2537         if (!fcport->rport)
2538                 return;
2539
2540         rport = fcport->rport;
2541         if (defer) {
2542                 base_vha = pci_get_drvdata(vha->hw->pdev);
2543                 spin_lock_irqsave(vha->host->host_lock, flags);
2544                 fcport->drport = rport;
2545                 spin_unlock_irqrestore(vha->host->host_lock, flags);
2546                 set_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
2547                 qla2xxx_wake_dpc(base_vha);
2548         } else
2549                 fc_remote_port_delete(rport);
2550 }
2551
2552 /*
2553  * qla2x00_mark_device_lost Updates fcport state when device goes offline.
2554  *
2555  * Input: ha = adapter block pointer.  fcport = port structure pointer.
2556  *
2557  * Return: None.
2558  *
2559  * Context:
2560  */
2561 void qla2x00_mark_device_lost(scsi_qla_host_t *vha, fc_port_t *fcport,
2562     int do_login, int defer)
2563 {
2564         if (atomic_read(&fcport->state) == FCS_ONLINE &&
2565             vha->vp_idx == fcport->vp_idx) {
2566                 qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
2567                 qla2x00_schedule_rport_del(vha, fcport, defer);
2568         }
2569         /*
2570          * We may need to retry the login, so don't change the state of the
2571          * port but do the retries.
2572          */
2573         if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
2574                 qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
2575
2576         if (!do_login)
2577                 return;
2578
2579         if (fcport->login_retry == 0) {
2580                 fcport->login_retry = vha->hw->login_retry_count;
2581                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2582
2583                 DEBUG(printk("scsi(%ld): Port login retry: "
2584                     "%02x%02x%02x%02x%02x%02x%02x%02x, "
2585                     "id = 0x%04x retry cnt=%d\n",
2586                     vha->host_no,
2587                     fcport->port_name[0],
2588                     fcport->port_name[1],
2589                     fcport->port_name[2],
2590                     fcport->port_name[3],
2591                     fcport->port_name[4],
2592                     fcport->port_name[5],
2593                     fcport->port_name[6],
2594                     fcport->port_name[7],
2595                     fcport->loop_id,
2596                     fcport->login_retry));
2597         }
2598 }
2599
2600 /*
2601  * qla2x00_mark_all_devices_lost
2602  *      Updates fcport state when device goes offline.
2603  *
2604  * Input:
2605  *      ha = adapter block pointer.
2606  *      fcport = port structure pointer.
2607  *
2608  * Return:
2609  *      None.
2610  *
2611  * Context:
2612  */
2613 void
2614 qla2x00_mark_all_devices_lost(scsi_qla_host_t *vha, int defer)
2615 {
2616         fc_port_t *fcport;
2617
2618         list_for_each_entry(fcport, &vha->vp_fcports, list) {
2619                 if (vha->vp_idx != 0 && vha->vp_idx != fcport->vp_idx)
2620                         continue;
2621
2622                 /*
2623                  * No point in marking the device as lost, if the device is
2624                  * already DEAD.
2625                  */
2626                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
2627                         continue;
2628                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
2629                         qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
2630                         if (defer)
2631                                 qla2x00_schedule_rport_del(vha, fcport, defer);
2632                         else if (vha->vp_idx == fcport->vp_idx)
2633                                 qla2x00_schedule_rport_del(vha, fcport, defer);
2634                 }
2635         }
2636 }
2637
2638 /*
2639 * qla2x00_mem_alloc
2640 *      Allocates adapter memory.
2641 *
2642 * Returns:
2643 *      0  = success.
2644 *      !0  = failure.
2645 */
2646 static int
2647 qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
2648         struct req_que **req, struct rsp_que **rsp)
2649 {
2650         char    name[16];
2651
2652         ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
2653                 &ha->init_cb_dma, GFP_KERNEL);
2654         if (!ha->init_cb)
2655                 goto fail;
2656
2657         ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
2658                 &ha->gid_list_dma, GFP_KERNEL);
2659         if (!ha->gid_list)
2660                 goto fail_free_init_cb;
2661
2662         ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
2663         if (!ha->srb_mempool)
2664                 goto fail_free_gid_list;
2665
2666         if (IS_QLA82XX(ha)) {
2667                 /* Allocate cache for CT6 Ctx. */
2668                 if (!ctx_cachep) {
2669                         ctx_cachep = kmem_cache_create("qla2xxx_ctx",
2670                                 sizeof(struct ct6_dsd), 0,
2671                                 SLAB_HWCACHE_ALIGN, NULL);
2672                         if (!ctx_cachep)
2673                                 goto fail_free_gid_list;
2674                 }
2675                 ha->ctx_mempool = mempool_create_slab_pool(SRB_MIN_REQ,
2676                         ctx_cachep);
2677                 if (!ha->ctx_mempool)
2678                         goto fail_free_srb_mempool;
2679         }
2680
2681         /* Get memory for cached NVRAM */
2682         ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
2683         if (!ha->nvram)
2684                 goto fail_free_ctx_mempool;
2685
2686         snprintf(name, sizeof(name), "%s_%d", QLA2XXX_DRIVER_NAME,
2687                 ha->pdev->device);
2688         ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2689                 DMA_POOL_SIZE, 8, 0);
2690         if (!ha->s_dma_pool)
2691                 goto fail_free_nvram;
2692
2693         if (IS_QLA82XX(ha) || ql2xenabledif) {
2694                 ha->dl_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2695                         DSD_LIST_DMA_POOL_SIZE, 8, 0);
2696                 if (!ha->dl_dma_pool) {
2697                         qla_printk(KERN_WARNING, ha,
2698                             "Memory Allocation failed - dl_dma_pool\n");
2699                         goto fail_s_dma_pool;
2700                 }
2701
2702                 ha->fcp_cmnd_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2703                         FCP_CMND_DMA_POOL_SIZE, 8, 0);
2704                 if (!ha->fcp_cmnd_dma_pool) {
2705                         qla_printk(KERN_WARNING, ha,
2706                             "Memory Allocation failed - fcp_cmnd_dma_pool\n");
2707                         goto fail_dl_dma_pool;
2708                 }
2709         }
2710
2711         /* Allocate memory for SNS commands */
2712         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2713         /* Get consistent memory allocated for SNS commands */
2714                 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
2715                 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
2716                 if (!ha->sns_cmd)
2717                         goto fail_dma_pool;
2718         } else {
2719         /* Get consistent memory allocated for MS IOCB */
2720                 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2721                         &ha->ms_iocb_dma);
2722                 if (!ha->ms_iocb)
2723                         goto fail_dma_pool;
2724         /* Get consistent memory allocated for CT SNS commands */
2725                 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2726                         sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
2727                 if (!ha->ct_sns)
2728                         goto fail_free_ms_iocb;
2729         }
2730
2731         /* Allocate memory for request ring */
2732         *req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
2733         if (!*req) {
2734                 DEBUG(printk("Unable to allocate memory for req\n"));
2735                 goto fail_req;
2736         }
2737         (*req)->length = req_len;
2738         (*req)->ring = dma_alloc_coherent(&ha->pdev->dev,
2739                 ((*req)->length + 1) * sizeof(request_t),
2740                 &(*req)->dma, GFP_KERNEL);
2741         if (!(*req)->ring) {
2742                 DEBUG(printk("Unable to allocate memory for req_ring\n"));
2743                 goto fail_req_ring;
2744         }
2745         /* Allocate memory for response ring */
2746         *rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
2747         if (!*rsp) {
2748                 qla_printk(KERN_WARNING, ha,
2749                         "Unable to allocate memory for rsp\n");
2750                 goto fail_rsp;
2751         }
2752         (*rsp)->hw = ha;
2753         (*rsp)->length = rsp_len;
2754         (*rsp)->ring = dma_alloc_coherent(&ha->pdev->dev,
2755                 ((*rsp)->length + 1) * sizeof(response_t),
2756                 &(*rsp)->dma, GFP_KERNEL);
2757         if (!(*rsp)->ring) {
2758                 qla_printk(KERN_WARNING, ha,
2759                         "Unable to allocate memory for rsp_ring\n");
2760                 goto fail_rsp_ring;
2761         }
2762         (*req)->rsp = *rsp;
2763         (*rsp)->req = *req;
2764         /* Allocate memory for NVRAM data for vports */
2765         if (ha->nvram_npiv_size) {
2766                 ha->npiv_info = kzalloc(sizeof(struct qla_npiv_entry) *
2767                                         ha->nvram_npiv_size, GFP_KERNEL);
2768                 if (!ha->npiv_info) {
2769                         qla_printk(KERN_WARNING, ha,
2770                                 "Unable to allocate memory for npiv info\n");
2771                         goto fail_npiv_info;
2772                 }
2773         } else
2774                 ha->npiv_info = NULL;
2775
2776         /* Get consistent memory allocated for EX-INIT-CB. */
2777         if (IS_QLA8XXX_TYPE(ha)) {
2778                 ha->ex_init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2779                     &ha->ex_init_cb_dma);
2780                 if (!ha->ex_init_cb)
2781                         goto fail_ex_init_cb;
2782         }
2783
2784         INIT_LIST_HEAD(&ha->gbl_dsd_list);
2785
2786         /* Get consistent memory allocated for Async Port-Database. */
2787         if (!IS_FWI2_CAPABLE(ha)) {
2788                 ha->async_pd = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2789                         &ha->async_pd_dma);
2790                 if (!ha->async_pd)
2791                         goto fail_async_pd;
2792         }
2793
2794         INIT_LIST_HEAD(&ha->vp_list);
2795         return 1;
2796
2797 fail_async_pd:
2798         dma_pool_free(ha->s_dma_pool, ha->ex_init_cb, ha->ex_init_cb_dma);
2799 fail_ex_init_cb:
2800         kfree(ha->npiv_info);
2801 fail_npiv_info:
2802         dma_free_coherent(&ha->pdev->dev, ((*rsp)->length + 1) *
2803                 sizeof(response_t), (*rsp)->ring, (*rsp)->dma);
2804         (*rsp)->ring = NULL;
2805         (*rsp)->dma = 0;
2806 fail_rsp_ring:
2807         kfree(*rsp);
2808 fail_rsp:
2809         dma_free_coherent(&ha->pdev->dev, ((*req)->length + 1) *
2810                 sizeof(request_t), (*req)->ring, (*req)->dma);
2811         (*req)->ring = NULL;
2812         (*req)->dma = 0;
2813 fail_req_ring:
2814         kfree(*req);
2815 fail_req:
2816         dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2817                 ha->ct_sns, ha->ct_sns_dma);
2818         ha->ct_sns = NULL;
2819         ha->ct_sns_dma = 0;
2820 fail_free_ms_iocb:
2821         dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2822         ha->ms_iocb = NULL;
2823         ha->ms_iocb_dma = 0;
2824 fail_dma_pool:
2825         if (IS_QLA82XX(ha) || ql2xenabledif) {
2826                 dma_pool_destroy(ha->fcp_cmnd_dma_pool);
2827                 ha->fcp_cmnd_dma_pool = NULL;
2828         }
2829 fail_dl_dma_pool:
2830         if (IS_QLA82XX(ha) || ql2xenabledif) {
2831                 dma_pool_destroy(ha->dl_dma_pool);
2832                 ha->dl_dma_pool = NULL;
2833         }
2834 fail_s_dma_pool:
2835         dma_pool_destroy(ha->s_dma_pool);
2836         ha->s_dma_pool = NULL;
2837 fail_free_nvram:
2838         kfree(ha->nvram);
2839         ha->nvram = NULL;
2840 fail_free_ctx_mempool:
2841         mempool_destroy(ha->ctx_mempool);
2842         ha->ctx_mempool = NULL;
2843 fail_free_srb_mempool:
2844         mempool_destroy(ha->srb_mempool);
2845         ha->srb_mempool = NULL;
2846 fail_free_gid_list:
2847         dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2848         ha->gid_list_dma);
2849         ha->gid_list = NULL;
2850         ha->gid_list_dma = 0;
2851 fail_free_init_cb:
2852         dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
2853         ha->init_cb_dma);
2854         ha->init_cb = NULL;
2855         ha->init_cb_dma = 0;
2856 fail:
2857         DEBUG(printk("%s: Memory allocation failure\n", __func__));
2858         return -ENOMEM;
2859 }
2860
2861 /*
2862 * qla2x00_free_fw_dump
2863 *       Frees fw dump stuff.
2864 *
2865 * Input:
2866 *       ha = adapter block pointer.
2867 */
2868 static void
2869 qla2x00_free_fw_dump(struct qla_hw_data *ha)
2870 {
2871         if (ha->fce)
2872                 dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
2873                     ha->fce_dma);
2874
2875         if (ha->fw_dump) {
2876                 if (ha->eft)
2877                         dma_free_coherent(&ha->pdev->dev,
2878                             ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2879                 vfree(ha->fw_dump);
2880         }
2881         ha->fce = NULL;
2882         ha->fce_dma = 0;
2883         ha->eft = NULL;
2884         ha->eft_dma = 0;
2885         ha->fw_dump = NULL;
2886         ha->fw_dumped = 0;
2887         ha->fw_dump_reading = 0;
2888 }
2889
2890 /*
2891 * qla2x00_mem_free
2892 *      Frees all adapter allocated memory.
2893 *
2894 * Input:
2895 *      ha = adapter block pointer.
2896 */
2897 static void
2898 qla2x00_mem_free(struct qla_hw_data *ha)
2899 {
2900         qla2x00_free_fw_dump(ha);
2901
2902         if (ha->srb_mempool)
2903                 mempool_destroy(ha->srb_mempool);
2904
2905         if (ha->dcbx_tlv)
2906                 dma_free_coherent(&ha->pdev->dev, DCBX_TLV_DATA_SIZE,
2907                     ha->dcbx_tlv, ha->dcbx_tlv_dma);
2908
2909         if (ha->xgmac_data)
2910                 dma_free_coherent(&ha->pdev->dev, XGMAC_DATA_SIZE,
2911                     ha->xgmac_data, ha->xgmac_data_dma);
2912
2913         if (ha->sns_cmd)
2914                 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2915                 ha->sns_cmd, ha->sns_cmd_dma);
2916
2917         if (ha->ct_sns)
2918                 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2919                 ha->ct_sns, ha->ct_sns_dma);
2920
2921         if (ha->sfp_data)
2922                 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2923
2924         if (ha->edc_data)
2925                 dma_pool_free(ha->s_dma_pool, ha->edc_data, ha->edc_data_dma);
2926
2927         if (ha->ms_iocb)
2928                 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2929
2930         if (ha->ex_init_cb)
2931                 dma_pool_free(ha->s_dma_pool,
2932                         ha->ex_init_cb, ha->ex_init_cb_dma);
2933
2934         if (ha->async_pd)
2935                 dma_pool_free(ha->s_dma_pool, ha->async_pd, ha->async_pd_dma);
2936
2937         if (ha->s_dma_pool)
2938                 dma_pool_destroy(ha->s_dma_pool);
2939
2940         if (ha->gid_list)
2941                 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2942                 ha->gid_list_dma);
2943
2944         if (IS_QLA82XX(ha)) {
2945                 if (!list_empty(&ha->gbl_dsd_list)) {
2946                         struct dsd_dma *dsd_ptr, *tdsd_ptr;
2947
2948                         /* clean up allocated prev pool */
2949                         list_for_each_entry_safe(dsd_ptr,
2950                                 tdsd_ptr, &ha->gbl_dsd_list, list) {
2951                                 dma_pool_free(ha->dl_dma_pool,
2952                                 dsd_ptr->dsd_addr, dsd_ptr->dsd_list_dma);
2953                                 list_del(&dsd_ptr->list);
2954                                 kfree(dsd_ptr);
2955                         }
2956                 }
2957         }
2958
2959         if (ha->dl_dma_pool)
2960                 dma_pool_destroy(ha->dl_dma_pool);
2961
2962         if (ha->fcp_cmnd_dma_pool)
2963                 dma_pool_destroy(ha->fcp_cmnd_dma_pool);
2964
2965         if (ha->ctx_mempool)
2966                 mempool_destroy(ha->ctx_mempool);
2967
2968         if (ha->init_cb)
2969                 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
2970                         ha->init_cb, ha->init_cb_dma);
2971         vfree(ha->optrom_buffer);
2972         kfree(ha->nvram);
2973         kfree(ha->npiv_info);
2974
2975         ha->srb_mempool = NULL;
2976         ha->ctx_mempool = NULL;
2977         ha->sns_cmd = NULL;
2978         ha->sns_cmd_dma = 0;
2979         ha->ct_sns = NULL;
2980         ha->ct_sns_dma = 0;
2981         ha->ms_iocb = NULL;
2982         ha->ms_iocb_dma = 0;
2983         ha->init_cb = NULL;
2984         ha->init_cb_dma = 0;
2985         ha->ex_init_cb = NULL;
2986         ha->ex_init_cb_dma = 0;
2987         ha->async_pd = NULL;
2988         ha->async_pd_dma = 0;
2989
2990         ha->s_dma_pool = NULL;
2991         ha->dl_dma_pool = NULL;
2992         ha->fcp_cmnd_dma_pool = NULL;
2993
2994         ha->gid_list = NULL;
2995         ha->gid_list_dma = 0;
2996 }
2997
2998 struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht,
2999                                                 struct qla_hw_data *ha)
3000 {
3001         struct Scsi_Host *host;
3002         struct scsi_qla_host *vha = NULL;
3003
3004         host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
3005         if (host == NULL) {
3006                 printk(KERN_WARNING
3007                 "qla2xxx: Couldn't allocate host from scsi layer!\n");
3008                 goto fail;
3009         }
3010
3011         /* Clear our data area */
3012         vha = shost_priv(host);
3013         memset(vha, 0, sizeof(scsi_qla_host_t));
3014
3015         vha->host = host;
3016         vha->host_no = host->host_no;
3017         vha->hw = ha;
3018
3019         INIT_LIST_HEAD(&vha->vp_fcports);
3020         INIT_LIST_HEAD(&vha->work_list);
3021         INIT_LIST_HEAD(&vha->list);
3022
3023         spin_lock_init(&vha->work_lock);
3024
3025         sprintf(vha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, vha->host_no);
3026         return vha;
3027
3028 fail:
3029         return vha;
3030 }
3031
3032 static struct qla_work_evt *
3033 qla2x00_alloc_work(struct scsi_qla_host *vha, enum qla_work_type type)
3034 {
3035         struct qla_work_evt *e;
3036         uint8_t bail;
3037
3038         QLA_VHA_MARK_BUSY(vha, bail);
3039         if (bail)
3040                 return NULL;
3041
3042         e = kzalloc(sizeof(struct qla_work_evt), GFP_ATOMIC);
3043         if (!e) {
3044                 QLA_VHA_MARK_NOT_BUSY(vha);
3045                 return NULL;
3046         }
3047
3048         INIT_LIST_HEAD(&e->list);
3049         e->type = type;
3050         e->flags = QLA_EVT_FLAG_FREE;
3051         return e;
3052 }
3053
3054 static int
3055 qla2x00_post_work(struct scsi_qla_host *vha, struct qla_work_evt *e)
3056 {
3057         unsigned long flags;
3058
3059         spin_lock_irqsave(&vha->work_lock, flags);
3060         list_add_tail(&e->list, &vha->work_list);
3061         spin_unlock_irqrestore(&vha->work_lock, flags);
3062         qla2xxx_wake_dpc(vha);
3063
3064         return QLA_SUCCESS;
3065 }
3066
3067 int
3068 qla2x00_post_aen_work(struct scsi_qla_host *vha, enum fc_host_event_code code,
3069     u32 data)
3070 {
3071         struct qla_work_evt *e;
3072
3073         e = qla2x00_alloc_work(vha, QLA_EVT_AEN);
3074         if (!e)
3075                 return QLA_FUNCTION_FAILED;
3076
3077         e->u.aen.code = code;
3078         e->u.aen.data = data;
3079         return qla2x00_post_work(vha, e);
3080 }
3081
3082 int
3083 qla2x00_post_idc_ack_work(struct scsi_qla_host *vha, uint16_t *mb)
3084 {
3085         struct qla_work_evt *e;
3086
3087         e = qla2x00_alloc_work(vha, QLA_EVT_IDC_ACK);
3088         if (!e)
3089                 return QLA_FUNCTION_FAILED;
3090
3091         memcpy(e->u.idc_ack.mb, mb, QLA_IDC_ACK_REGS * sizeof(uint16_t));
3092         return qla2x00_post_work(vha, e);
3093 }
3094
3095 #define qla2x00_post_async_work(name, type)     \
3096 int qla2x00_post_async_##name##_work(           \
3097     struct scsi_qla_host *vha,                  \
3098     fc_port_t *fcport, uint16_t *data)          \
3099 {                                               \
3100         struct qla_work_evt *e;                 \
3101                                                 \
3102         e = qla2x00_alloc_work(vha, type);      \
3103         if (!e)                                 \
3104                 return QLA_FUNCTION_FAILED;     \
3105                                                 \
3106         e->u.logio.fcport = fcport;             \
3107         if (data) {                             \
3108                 e->u.logio.data[0] = data[0];   \
3109                 e->u.logio.data[1] = data[1];   \
3110         }                                       \
3111         return qla2x00_post_work(vha, e);       \
3112 }
3113
3114 qla2x00_post_async_work(login, QLA_EVT_ASYNC_LOGIN);
3115 qla2x00_post_async_work(login_done, QLA_EVT_ASYNC_LOGIN_DONE);
3116 qla2x00_post_async_work(logout, QLA_EVT_ASYNC_LOGOUT);
3117 qla2x00_post_async_work(logout_done, QLA_EVT_ASYNC_LOGOUT_DONE);
3118 qla2x00_post_async_work(adisc, QLA_EVT_ASYNC_ADISC);
3119 qla2x00_post_async_work(adisc_done, QLA_EVT_ASYNC_ADISC_DONE);
3120
3121 int
3122 qla2x00_post_uevent_work(struct scsi_qla_host *vha, u32 code)
3123 {
3124         struct qla_work_evt *e;
3125
3126         e = qla2x00_alloc_work(vha, QLA_EVT_UEVENT);
3127         if (!e)
3128                 return QLA_FUNCTION_FAILED;
3129
3130         e->u.uevent.code = code;
3131         return qla2x00_post_work(vha, e);
3132 }
3133
3134 static void
3135 qla2x00_uevent_emit(struct scsi_qla_host *vha, u32 code)
3136 {
3137         char event_string[40];
3138         char *envp[] = { event_string, NULL };
3139
3140         switch (code) {
3141         case QLA_UEVENT_CODE_FW_DUMP:
3142                 snprintf(event_string, sizeof(event_string), "FW_DUMP=%ld",
3143                     vha->host_no);
3144                 break;
3145         default:
3146                 /* do nothing */
3147                 break;
3148         }
3149         kobject_uevent_env(&vha->hw->pdev->dev.kobj, KOBJ_CHANGE, envp);
3150 }
3151
3152 void
3153 qla2x00_do_work(struct scsi_qla_host *vha)
3154 {
3155         struct qla_work_evt *e, *tmp;
3156         unsigned long flags;
3157         LIST_HEAD(work);
3158
3159         spin_lock_irqsave(&vha->work_lock, flags);
3160         list_splice_init(&vha->work_list, &work);
3161         spin_unlock_irqrestore(&vha->work_lock, flags);
3162
3163         list_for_each_entry_safe(e, tmp, &work, list) {
3164                 list_del_init(&e->list);
3165
3166                 switch (e->type) {
3167                 case QLA_EVT_AEN:
3168                         fc_host_post_event(vha->host, fc_get_event_number(),
3169                             e->u.aen.code, e->u.aen.data);
3170                         break;
3171                 case QLA_EVT_IDC_ACK:
3172                         qla81xx_idc_ack(vha, e->u.idc_ack.mb);
3173                         break;
3174                 case QLA_EVT_ASYNC_LOGIN:
3175                         qla2x00_async_login(vha, e->u.logio.fcport,
3176                             e->u.logio.data);
3177                         break;
3178                 case QLA_EVT_ASYNC_LOGIN_DONE:
3179                         qla2x00_async_login_done(vha, e->u.logio.fcport,
3180                             e->u.logio.data);
3181                         break;
3182                 case QLA_EVT_ASYNC_LOGOUT:
3183                         qla2x00_async_logout(vha, e->u.logio.fcport);
3184                         break;
3185                 case QLA_EVT_ASYNC_LOGOUT_DONE:
3186                         qla2x00_async_logout_done(vha, e->u.logio.fcport,
3187                             e->u.logio.data);
3188                         break;
3189                 case QLA_EVT_ASYNC_ADISC:
3190                         qla2x00_async_adisc(vha, e->u.logio.fcport,
3191                             e->u.logio.data);
3192                         break;
3193                 case QLA_EVT_ASYNC_ADISC_DONE:
3194                         qla2x00_async_adisc_done(vha, e->u.logio.fcport,
3195                             e->u.logio.data);
3196                         break;
3197                 case QLA_EVT_UEVENT:
3198                         qla2x00_uevent_emit(vha, e->u.uevent.code);
3199                         break;
3200                 }
3201                 if (e->flags & QLA_EVT_FLAG_FREE)
3202                         kfree(e);
3203
3204                 /* For each work completed decrement vha ref count */
3205                 QLA_VHA_MARK_NOT_BUSY(vha);
3206         }
3207 }
3208
3209 /* Relogins all the fcports of a vport
3210  * Context: dpc thread
3211  */
3212 void qla2x00_relogin(struct scsi_qla_host *vha)
3213 {
3214         fc_port_t       *fcport;
3215         int status;
3216         uint16_t        next_loopid = 0;
3217         struct qla_hw_data *ha = vha->hw;
3218         uint16_t data[2];
3219
3220         list_for_each_entry(fcport, &vha->vp_fcports, list) {
3221         /*
3222          * If the port is not ONLINE then try to login
3223          * to it if we haven't run out of retries.
3224          */
3225                 if (atomic_read(&fcport->state) != FCS_ONLINE &&
3226                     fcport->login_retry && !(fcport->flags & FCF_ASYNC_SENT)) {
3227                         fcport->login_retry--;
3228                         if (fcport->flags & FCF_FABRIC_DEVICE) {
3229                                 if (fcport->flags & FCF_FCP2_DEVICE)
3230                                         ha->isp_ops->fabric_logout(vha,
3231                                                         fcport->loop_id,
3232                                                         fcport->d_id.b.domain,
3233                                                         fcport->d_id.b.area,
3234                                                         fcport->d_id.b.al_pa);
3235
3236                                 if (fcport->loop_id == FC_NO_LOOP_ID) {
3237                                         fcport->loop_id = next_loopid =
3238                                             ha->min_external_loopid;
3239                                         status = qla2x00_find_new_loop_id(
3240                                             vha, fcport);
3241                                         if (status != QLA_SUCCESS) {
3242                                                 /* Ran out of IDs to use */
3243                                                 break;
3244                                         }
3245                                 }
3246
3247                                 if (IS_ALOGIO_CAPABLE(ha)) {
3248                                         fcport->flags |= FCF_ASYNC_SENT;
3249                                         data[0] = 0;
3250                                         data[1] = QLA_LOGIO_LOGIN_RETRIED;
3251                                         status = qla2x00_post_async_login_work(
3252                                             vha, fcport, data);
3253                                         if (status == QLA_SUCCESS)
3254                                                 continue;
3255                                         /* Attempt a retry. */
3256                                         status = 1;
3257                                 } else
3258                                         status = qla2x00_fabric_login(vha,
3259                                             fcport, &next_loopid);
3260                         } else
3261                                 status = qla2x00_local_device_login(vha,
3262                                                                 fcport);
3263
3264                         if (status == QLA_SUCCESS) {
3265                                 fcport->old_loop_id = fcport->loop_id;
3266
3267                                 DEBUG(printk("scsi(%ld): port login OK: logged "
3268                                 "in ID 0x%x\n", vha->host_no, fcport->loop_id));
3269
3270                                 qla2x00_update_fcport(vha, fcport);
3271
3272                         } else if (status == 1) {
3273                                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
3274                                 /* retry the login again */
3275                                 DEBUG(printk("scsi(%ld): Retrying"
3276                                 " %d login again loop_id 0x%x\n",
3277                                 vha->host_no, fcport->login_retry,
3278                                                 fcport->loop_id));
3279                         } else {
3280                                 fcport->login_retry = 0;
3281                         }
3282
3283                         if (fcport->login_retry == 0 && status != QLA_SUCCESS)
3284                                 fcport->loop_id = FC_NO_LOOP_ID;
3285                 }
3286                 if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
3287                         break;
3288         }
3289 }
3290
3291 /**************************************************************************
3292 * qla2x00_do_dpc
3293 *   This kernel thread is a task that is schedule by the interrupt handler
3294 *   to perform the background processing for interrupts.
3295 *
3296 * Notes:
3297 * This task always run in the context of a kernel thread.  It
3298 * is kick-off by the driver's detect code and starts up
3299 * up one per adapter. It immediately goes to sleep and waits for
3300 * some fibre event.  When either the interrupt handler or
3301 * the timer routine detects a event it will one of the task
3302 * bits then wake us up.
3303 **************************************************************************/
3304 static int
3305 qla2x00_do_dpc(void *data)
3306 {
3307         int             rval;
3308         scsi_qla_host_t *base_vha;
3309         struct qla_hw_data *ha;
3310
3311         ha = (struct qla_hw_data *)data;
3312         base_vha = pci_get_drvdata(ha->pdev);
3313
3314         set_user_nice(current, -20);
3315
3316         set_current_state(TASK_INTERRUPTIBLE);
3317         while (!kthread_should_stop()) {
3318                 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
3319
3320                 schedule();
3321                 __set_current_state(TASK_RUNNING);
3322
3323                 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
3324
3325                 /* Initialization not yet finished. Don't do anything yet. */
3326                 if (!base_vha->flags.init_done)
3327                         continue;
3328
3329                 if (ha->flags.eeh_busy) {
3330                         DEBUG17(qla_printk(KERN_WARNING, ha,
3331                             "qla2x00_do_dpc: dpc_flags: %lx\n",
3332                             base_vha->dpc_flags));
3333                         continue;
3334                 }
3335
3336                 DEBUG3(printk("scsi(%ld): DPC handler\n", base_vha->host_no));
3337
3338                 ha->dpc_active = 1;
3339
3340                 if (ha->flags.mbox_busy) {
3341                         ha->dpc_active = 0;
3342                         continue;
3343                 }
3344
3345                 qla2x00_do_work(base_vha);
3346
3347                 if (IS_QLA82XX(ha)) {
3348                         if (test_and_clear_bit(ISP_UNRECOVERABLE,
3349                                 &base_vha->dpc_flags)) {
3350                                 qla82xx_idc_lock(ha);
3351                                 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3352                                         QLA82XX_DEV_FAILED);
3353                                 qla82xx_idc_unlock(ha);
3354                                 qla_printk(KERN_INFO, ha,
3355                                         "HW State: FAILED\n");
3356                                 qla82xx_device_state_handler(base_vha);
3357                                 continue;
3358                         }
3359
3360                         if (test_and_clear_bit(FCOE_CTX_RESET_NEEDED,
3361                                 &base_vha->dpc_flags)) {
3362
3363                                 DEBUG(printk(KERN_INFO
3364                                         "scsi(%ld): dpc: sched "
3365                                         "qla82xx_fcoe_ctx_reset ha = %p\n",
3366                                         base_vha->host_no, ha));
3367                                 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
3368                                         &base_vha->dpc_flags))) {
3369                                         if (qla82xx_fcoe_ctx_reset(base_vha)) {
3370                                                 /* FCoE-ctx reset failed.
3371                                                  * Escalate to chip-reset
3372                                                  */
3373                                                 set_bit(ISP_ABORT_NEEDED,
3374                                                         &base_vha->dpc_flags);
3375                                         }
3376                                         clear_bit(ABORT_ISP_ACTIVE,
3377                                                 &base_vha->dpc_flags);
3378                                 }
3379
3380                                 DEBUG(printk("scsi(%ld): dpc:"
3381                                         " qla82xx_fcoe_ctx_reset end\n",
3382                                         base_vha->host_no));
3383                         }
3384                 }
3385
3386                 if (test_and_clear_bit(ISP_ABORT_NEEDED,
3387                                                 &base_vha->dpc_flags)) {
3388
3389                         DEBUG(printk("scsi(%ld): dpc: sched "
3390                             "qla2x00_abort_isp ha = %p\n",
3391                             base_vha->host_no, ha));
3392                         if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
3393                             &base_vha->dpc_flags))) {
3394
3395                                 if (ha->isp_ops->abort_isp(base_vha)) {
3396                                         /* failed. retry later */
3397                                         set_bit(ISP_ABORT_NEEDED,
3398                                             &base_vha->dpc_flags);
3399                                 }
3400                                 clear_bit(ABORT_ISP_ACTIVE,
3401                                                 &base_vha->dpc_flags);
3402                         }
3403
3404                         DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
3405                             base_vha->host_no));
3406                 }
3407
3408                 if (test_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags)) {
3409                         qla2x00_update_fcports(base_vha);
3410                         clear_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
3411                 }
3412
3413                 if (test_bit(ISP_QUIESCE_NEEDED, &base_vha->dpc_flags)) {
3414                         DEBUG(printk(KERN_INFO "scsi(%ld): dpc: sched "
3415                             "qla2x00_quiesce_needed ha = %p\n",
3416                             base_vha->host_no, ha));
3417                         qla82xx_device_state_handler(base_vha);
3418                         clear_bit(ISP_QUIESCE_NEEDED, &base_vha->dpc_flags);
3419                         if (!ha->flags.quiesce_owner) {
3420                                 qla2x00_perform_loop_resync(base_vha);
3421
3422                                 qla82xx_idc_lock(ha);
3423                                 qla82xx_clear_qsnt_ready(base_vha);
3424                                 qla82xx_idc_unlock(ha);
3425                         }
3426                 }
3427
3428                 if (test_and_clear_bit(RESET_MARKER_NEEDED,
3429                                                         &base_vha->dpc_flags) &&
3430                     (!(test_and_set_bit(RESET_ACTIVE, &base_vha->dpc_flags)))) {
3431
3432                         DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
3433                             base_vha->host_no));
3434
3435                         qla2x00_rst_aen(base_vha);
3436                         clear_bit(RESET_ACTIVE, &base_vha->dpc_flags);
3437                 }
3438
3439                 /* Retry each device up to login retry count */
3440                 if ((test_and_clear_bit(RELOGIN_NEEDED,
3441                                                 &base_vha->dpc_flags)) &&
3442                     !test_bit(LOOP_RESYNC_NEEDED, &base_vha->dpc_flags) &&
3443                     atomic_read(&base_vha->loop_state) != LOOP_DOWN) {
3444
3445                         DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
3446                                         base_vha->host_no));
3447                         qla2x00_relogin(base_vha);
3448
3449                         DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
3450                             base_vha->host_no));
3451                 }
3452
3453                 if (test_and_clear_bit(LOOP_RESYNC_NEEDED,
3454                                                         &base_vha->dpc_flags)) {
3455
3456                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
3457                                 base_vha->host_no));
3458
3459                         if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
3460                             &base_vha->dpc_flags))) {
3461
3462                                 rval = qla2x00_loop_resync(base_vha);
3463
3464                                 clear_bit(LOOP_RESYNC_ACTIVE,
3465                                                 &base_vha->dpc_flags);
3466                         }
3467
3468                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
3469                             base_vha->host_no));
3470                 }
3471
3472                 if (test_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags) &&
3473                     atomic_read(&base_vha->loop_state) == LOOP_READY) {
3474                         clear_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags);
3475                         qla2xxx_flash_npiv_conf(base_vha);
3476                 }
3477
3478                 if (!ha->interrupts_on)
3479                         ha->isp_ops->enable_intrs(ha);
3480
3481                 if (test_and_clear_bit(BEACON_BLINK_NEEDED,
3482                                         &base_vha->dpc_flags))
3483                         ha->isp_ops->beacon_blink(base_vha);
3484
3485                 qla2x00_do_dpc_all_vps(base_vha);
3486
3487                 ha->dpc_active = 0;
3488                 set_current_state(TASK_INTERRUPTIBLE);
3489         } /* End of while(1) */
3490         __set_current_state(TASK_RUNNING);
3491
3492         DEBUG(printk("scsi(%ld): DPC handler exiting\n", base_vha->host_no));
3493
3494         /*
3495          * Make sure that nobody tries to wake us up again.
3496          */
3497         ha->dpc_active = 0;
3498
3499         /* Cleanup any residual CTX SRBs. */
3500         qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
3501
3502         return 0;
3503 }
3504
3505 void
3506 qla2xxx_wake_dpc(struct scsi_qla_host *vha)
3507 {
3508         struct qla_hw_data *ha = vha->hw;
3509         struct task_struct *t = ha->dpc_thread;
3510
3511         if (!test_bit(UNLOADING, &vha->dpc_flags) && t)
3512                 wake_up_process(t);
3513 }
3514
3515 /*
3516 *  qla2x00_rst_aen
3517 *      Processes asynchronous reset.
3518 *
3519 * Input:
3520 *      ha  = adapter block pointer.
3521 */
3522 static void
3523 qla2x00_rst_aen(scsi_qla_host_t *vha)
3524 {
3525         if (vha->flags.online && !vha->flags.reset_active &&
3526             !atomic_read(&vha->loop_down_timer) &&
3527             !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) {
3528                 do {
3529                         clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
3530
3531                         /*
3532                          * Issue marker command only when we are going to start
3533                          * the I/O.
3534                          */
3535                         vha->marker_needed = 1;
3536                 } while (!atomic_read(&vha->loop_down_timer) &&
3537                     (test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags)));
3538         }
3539 }
3540
3541 static void
3542 qla2x00_sp_free_dma(srb_t *sp)
3543 {
3544         struct scsi_cmnd *cmd = sp->cmd;
3545         struct qla_hw_data *ha = sp->fcport->vha->hw;
3546
3547         if (sp->flags & SRB_DMA_VALID) {
3548                 scsi_dma_unmap(cmd);
3549                 sp->flags &= ~SRB_DMA_VALID;
3550         }
3551
3552         if (sp->flags & SRB_CRC_PROT_DMA_VALID) {
3553                 dma_unmap_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
3554                     scsi_prot_sg_count(cmd), cmd->sc_data_direction);
3555                 sp->flags &= ~SRB_CRC_PROT_DMA_VALID;
3556         }
3557
3558         if (sp->flags & SRB_CRC_CTX_DSD_VALID) {
3559                 /* List assured to be having elements */
3560                 qla2x00_clean_dsd_pool(ha, sp);
3561                 sp->flags &= ~SRB_CRC_CTX_DSD_VALID;
3562         }
3563
3564         if (sp->flags & SRB_CRC_CTX_DMA_VALID) {
3565                 dma_pool_free(ha->dl_dma_pool, sp->ctx,
3566                     ((struct crc_context *)sp->ctx)->crc_ctx_dma);
3567                 sp->flags &= ~SRB_CRC_CTX_DMA_VALID;
3568         }
3569
3570         CMD_SP(cmd) = NULL;
3571 }
3572
3573 static void
3574 qla2x00_sp_final_compl(struct qla_hw_data *ha, srb_t *sp)
3575 {
3576         struct scsi_cmnd *cmd = sp->cmd;
3577
3578         qla2x00_sp_free_dma(sp);
3579
3580         if (sp->flags & SRB_FCP_CMND_DMA_VALID) {
3581                 struct ct6_dsd *ctx = sp->ctx;
3582                 dma_pool_free(ha->fcp_cmnd_dma_pool, ctx->fcp_cmnd,
3583                         ctx->fcp_cmnd_dma);
3584                 list_splice(&ctx->dsd_list, &ha->gbl_dsd_list);
3585                 ha->gbl_dsd_inuse -= ctx->dsd_use_cnt;
3586                 ha->gbl_dsd_avail += ctx->dsd_use_cnt;
3587                 mempool_free(sp->ctx, ha->ctx_mempool);
3588                 sp->ctx = NULL;
3589         }
3590
3591         mempool_free(sp, ha->srb_mempool);
3592         cmd->scsi_done(cmd);
3593 }
3594
3595 void
3596 qla2x00_sp_compl(struct qla_hw_data *ha, srb_t *sp)
3597 {
3598         if (atomic_read(&sp->ref_count) == 0) {
3599                 DEBUG2(qla_printk(KERN_WARNING, ha,
3600                     "SP reference-count to ZERO -- sp=%p\n", sp));
3601                 DEBUG2(BUG());
3602                 return;
3603         }
3604         if (!atomic_dec_and_test(&sp->ref_count))
3605                 return;
3606         qla2x00_sp_final_compl(ha, sp);
3607 }
3608
3609 /**************************************************************************
3610 *   qla2x00_timer
3611 *
3612 * Description:
3613 *   One second timer
3614 *
3615 * Context: Interrupt
3616 ***************************************************************************/
3617 void
3618 qla2x00_timer(scsi_qla_host_t *vha)
3619 {
3620         unsigned long   cpu_flags = 0;
3621         int             start_dpc = 0;
3622         int             index;
3623         srb_t           *sp;
3624         uint16_t        w;
3625         struct qla_hw_data *ha = vha->hw;
3626         struct req_que *req;
3627
3628         if (ha->flags.eeh_busy) {
3629                 qla2x00_restart_timer(vha, WATCH_INTERVAL);
3630                 return;
3631         }
3632
3633         /* Hardware read to raise pending EEH errors during mailbox waits. */
3634         if (!pci_channel_offline(ha->pdev))
3635                 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
3636
3637         /* Make sure qla82xx_watchdog is run only for physical port */
3638         if (!vha->vp_idx && IS_QLA82XX(ha)) {
3639                 if (test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags))
3640                         start_dpc++;
3641                 qla82xx_watchdog(vha);
3642         }
3643
3644         /* Loop down handler. */
3645         if (atomic_read(&vha->loop_down_timer) > 0 &&
3646             !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) &&
3647             !(test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags))
3648                 && vha->flags.online) {
3649
3650                 if (atomic_read(&vha->loop_down_timer) ==
3651                     vha->loop_down_abort_time) {
3652
3653                         DEBUG(printk("scsi(%ld): Loop Down - aborting the "
3654                             "queues before time expire\n",
3655                             vha->host_no));
3656
3657                         if (!IS_QLA2100(ha) && vha->link_down_timeout)
3658                                 atomic_set(&vha->loop_state, LOOP_DEAD);
3659
3660                         /*
3661                          * Schedule an ISP abort to return any FCP2-device
3662                          * commands.
3663                          */
3664                         /* NPIV - scan physical port only */
3665                         if (!vha->vp_idx) {
3666                                 spin_lock_irqsave(&ha->hardware_lock,
3667                                     cpu_flags);
3668                                 req = ha->req_q_map[0];
3669                                 for (index = 1;
3670                                     index < MAX_OUTSTANDING_COMMANDS;
3671                                     index++) {
3672                                         fc_port_t *sfcp;
3673
3674                                         sp = req->outstanding_cmds[index];
3675                                         if (!sp)
3676                                                 continue;
3677                                         if (sp->ctx && !IS_PROT_IO(sp))
3678                                                 continue;
3679                                         sfcp = sp->fcport;
3680                                         if (!(sfcp->flags & FCF_FCP2_DEVICE))
3681                                                 continue;
3682
3683                                         if (IS_QLA82XX(ha))
3684                                                 set_bit(FCOE_CTX_RESET_NEEDED,
3685                                                         &vha->dpc_flags);
3686                                         else
3687                                                 set_bit(ISP_ABORT_NEEDED,
3688                                                         &vha->dpc_flags);
3689                                         break;
3690                                 }
3691                                 spin_unlock_irqrestore(&ha->hardware_lock,
3692                                                                 cpu_flags);
3693                         }
3694                         start_dpc++;
3695                 }
3696
3697                 /* if the loop has been down for 4 minutes, reinit adapter */
3698                 if (atomic_dec_and_test(&vha->loop_down_timer) != 0) {
3699                         if (!(vha->device_flags & DFLG_NO_CABLE)) {
3700                                 DEBUG(printk("scsi(%ld): Loop down - "
3701                                     "aborting ISP.\n",
3702                                     vha->host_no));
3703                                 qla_printk(KERN_WARNING, ha,
3704                                     "Loop down - aborting ISP.\n");
3705
3706                                 if (IS_QLA82XX(ha))
3707                                         set_bit(FCOE_CTX_RESET_NEEDED,
3708                                                 &vha->dpc_flags);
3709                                 else
3710                                         set_bit(ISP_ABORT_NEEDED,
3711                                                 &vha->dpc_flags);
3712                         }
3713                 }
3714                 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
3715                     vha->host_no,
3716                     atomic_read(&vha->loop_down_timer)));
3717         }
3718
3719         /* Check if beacon LED needs to be blinked for physical host only */
3720         if (!vha->vp_idx && (ha->beacon_blink_led == 1)) {
3721                 set_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags);
3722                 start_dpc++;
3723         }
3724
3725         /* Process any deferred work. */
3726         if (!list_empty(&vha->work_list))
3727                 start_dpc++;
3728
3729         /* Schedule the DPC routine if needed */
3730         if ((test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
3731             test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) ||
3732             test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags) ||
3733             start_dpc ||
3734             test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) ||
3735             test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags) ||
3736             test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags) ||
3737             test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) ||
3738             test_bit(VP_DPC_NEEDED, &vha->dpc_flags) ||
3739             test_bit(RELOGIN_NEEDED, &vha->dpc_flags)))
3740                 qla2xxx_wake_dpc(vha);
3741
3742         qla2x00_restart_timer(vha, WATCH_INTERVAL);
3743 }
3744
3745 /* Firmware interface routines. */
3746
3747 #define FW_BLOBS        8
3748 #define FW_ISP21XX      0
3749 #define FW_ISP22XX      1
3750 #define FW_ISP2300      2
3751 #define FW_ISP2322      3
3752 #define FW_ISP24XX      4
3753 #define FW_ISP25XX      5
3754 #define FW_ISP81XX      6
3755 #define FW_ISP82XX      7
3756
3757 #define FW_FILE_ISP21XX "ql2100_fw.bin"
3758 #define FW_FILE_ISP22XX "ql2200_fw.bin"
3759 #define FW_FILE_ISP2300 "ql2300_fw.bin"
3760 #define FW_FILE_ISP2322 "ql2322_fw.bin"
3761 #define FW_FILE_ISP24XX "ql2400_fw.bin"
3762 #define FW_FILE_ISP25XX "ql2500_fw.bin"
3763 #define FW_FILE_ISP81XX "ql8100_fw.bin"
3764 #define FW_FILE_ISP82XX "ql8200_fw.bin"
3765
3766 static DEFINE_MUTEX(qla_fw_lock);
3767
3768 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
3769         { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
3770         { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
3771         { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
3772         { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
3773         { .name = FW_FILE_ISP24XX, },
3774         { .name = FW_FILE_ISP25XX, },
3775         { .name = FW_FILE_ISP81XX, },
3776         { .name = FW_FILE_ISP82XX, },
3777 };
3778
3779 struct fw_blob *
3780 qla2x00_request_firmware(scsi_qla_host_t *vha)
3781 {
3782         struct qla_hw_data *ha = vha->hw;
3783         struct fw_blob *blob;
3784
3785         blob = NULL;
3786         if (IS_QLA2100(ha)) {
3787                 blob = &qla_fw_blobs[FW_ISP21XX];
3788         } else if (IS_QLA2200(ha)) {
3789                 blob = &qla_fw_blobs[FW_ISP22XX];
3790         } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
3791                 blob = &qla_fw_blobs[FW_ISP2300];
3792         } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
3793                 blob = &qla_fw_blobs[FW_ISP2322];
3794         } else if (IS_QLA24XX_TYPE(ha)) {
3795                 blob = &qla_fw_blobs[FW_ISP24XX];
3796         } else if (IS_QLA25XX(ha)) {
3797                 blob = &qla_fw_blobs[FW_ISP25XX];
3798         } else if (IS_QLA81XX(ha)) {
3799                 blob = &qla_fw_blobs[FW_ISP81XX];
3800         } else if (IS_QLA82XX(ha)) {
3801                 blob = &qla_fw_blobs[FW_ISP82XX];
3802         }
3803
3804         mutex_lock(&qla_fw_lock);
3805         if (blob->fw)
3806                 goto out;
3807
3808         if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
3809                 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
3810                     "(%s).\n", vha->host_no, blob->name));
3811                 blob->fw = NULL;
3812                 blob = NULL;
3813                 goto out;
3814         }
3815
3816 out:
3817         mutex_unlock(&qla_fw_lock);
3818         return blob;
3819 }
3820
3821 static void
3822 qla2x00_release_firmware(void)
3823 {
3824         int idx;
3825
3826         mutex_lock(&qla_fw_lock);
3827         for (idx = 0; idx < FW_BLOBS; idx++)
3828                 if (qla_fw_blobs[idx].fw)
3829                         release_firmware(qla_fw_blobs[idx].fw);
3830         mutex_unlock(&qla_fw_lock);
3831 }
3832
3833 static pci_ers_result_t
3834 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
3835 {
3836         scsi_qla_host_t *vha = pci_get_drvdata(pdev);
3837         struct qla_hw_data *ha = vha->hw;
3838
3839         DEBUG2(qla_printk(KERN_WARNING, ha, "error_detected:state %x\n",
3840             state));
3841
3842         switch (state) {
3843         case pci_channel_io_normal:
3844                 ha->flags.eeh_busy = 0;
3845                 return PCI_ERS_RESULT_CAN_RECOVER;
3846         case pci_channel_io_frozen:
3847                 ha->flags.eeh_busy = 1;
3848                 /* For ISP82XX complete any pending mailbox cmd */
3849                 if (IS_QLA82XX(ha)) {
3850                         ha->flags.isp82xx_fw_hung = 1;
3851                         if (ha->flags.mbox_busy) {
3852                                 ha->flags.mbox_int = 1;
3853                                 DEBUG2(qla_printk(KERN_ERR, ha,
3854                                         "Due to pci channel io frozen, doing premature "
3855                                         "completion of mbx command\n"));
3856                                 complete(&ha->mbx_intr_comp);
3857                         }
3858                 }
3859                 qla2x00_free_irqs(vha);
3860                 pci_disable_device(pdev);
3861                 /* Return back all IOs */
3862                 qla2x00_abort_all_cmds(vha, DID_RESET << 16);
3863                 return PCI_ERS_RESULT_NEED_RESET;
3864         case pci_channel_io_perm_failure:
3865                 ha->flags.pci_channel_io_perm_failure = 1;
3866                 qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
3867                 return PCI_ERS_RESULT_DISCONNECT;
3868         }
3869         return PCI_ERS_RESULT_NEED_RESET;
3870 }
3871
3872 static pci_ers_result_t
3873 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
3874 {
3875         int risc_paused = 0;
3876         uint32_t stat;
3877         unsigned long flags;
3878         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3879         struct qla_hw_data *ha = base_vha->hw;
3880         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3881         struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
3882
3883         if (IS_QLA82XX(ha))
3884                 return PCI_ERS_RESULT_RECOVERED;
3885
3886         spin_lock_irqsave(&ha->hardware_lock, flags);
3887         if (IS_QLA2100(ha) || IS_QLA2200(ha)){
3888                 stat = RD_REG_DWORD(&reg->hccr);
3889                 if (stat & HCCR_RISC_PAUSE)
3890                         risc_paused = 1;
3891         } else if (IS_QLA23XX(ha)) {
3892                 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
3893                 if (stat & HSR_RISC_PAUSED)
3894                         risc_paused = 1;
3895         } else if (IS_FWI2_CAPABLE(ha)) {
3896                 stat = RD_REG_DWORD(&reg24->host_status);
3897                 if (stat & HSRX_RISC_PAUSED)
3898                         risc_paused = 1;
3899         }
3900         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3901
3902         if (risc_paused) {
3903                 qla_printk(KERN_INFO, ha, "RISC paused -- mmio_enabled, "
3904                     "Dumping firmware!\n");
3905                 ha->isp_ops->fw_dump(base_vha, 0);
3906
3907                 return PCI_ERS_RESULT_NEED_RESET;
3908         } else
3909                 return PCI_ERS_RESULT_RECOVERED;
3910 }
3911
3912 uint32_t qla82xx_error_recovery(scsi_qla_host_t *base_vha)
3913 {
3914         uint32_t rval = QLA_FUNCTION_FAILED;
3915         uint32_t drv_active = 0;
3916         struct qla_hw_data *ha = base_vha->hw;
3917         int fn;
3918         struct pci_dev *other_pdev = NULL;
3919
3920         DEBUG17(qla_printk(KERN_INFO, ha,
3921             "scsi(%ld): In qla82xx_error_recovery\n", base_vha->host_no));
3922
3923         set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
3924
3925         if (base_vha->flags.online) {
3926                 /* Abort all outstanding commands,
3927                  * so as to be requeued later */
3928                 qla2x00_abort_isp_cleanup(base_vha);
3929         }
3930
3931
3932         fn = PCI_FUNC(ha->pdev->devfn);
3933         while (fn > 0) {
3934                 fn--;
3935                 DEBUG17(qla_printk(KERN_INFO, ha,
3936                     "Finding pci device at function = 0x%x\n", fn));
3937                 other_pdev =
3938                     pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus),
3939                     ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
3940                     fn));
3941
3942                 if (!other_pdev)
3943                         continue;
3944                 if (atomic_read(&other_pdev->enable_cnt)) {
3945                         DEBUG17(qla_printk(KERN_INFO, ha,
3946                             "Found PCI func available and enabled at 0x%x\n",
3947                             fn));
3948                         pci_dev_put(other_pdev);
3949                         break;
3950                 }
3951                 pci_dev_put(other_pdev);
3952         }
3953
3954         if (!fn) {
3955                 /* Reset owner */
3956                 DEBUG17(qla_printk(KERN_INFO, ha,
3957                     "This devfn is reset owner = 0x%x\n", ha->pdev->devfn));
3958                 qla82xx_idc_lock(ha);
3959
3960                 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3961                     QLA82XX_DEV_INITIALIZING);
3962
3963                 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION,
3964                     QLA82XX_IDC_VERSION);
3965
3966                 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3967                 DEBUG17(qla_printk(KERN_INFO, ha,
3968                     "drv_active = 0x%x\n", drv_active));
3969
3970                 qla82xx_idc_unlock(ha);
3971                 /* Reset if device is not already reset
3972                  * drv_active would be 0 if a reset has already been done
3973                  */
3974                 if (drv_active)
3975                         rval = qla82xx_start_firmware(base_vha);
3976                 else
3977                         rval = QLA_SUCCESS;
3978                 qla82xx_idc_lock(ha);
3979
3980                 if (rval != QLA_SUCCESS) {
3981                         qla_printk(KERN_INFO, ha, "HW State: FAILED\n");
3982                         qla82xx_clear_drv_active(ha);
3983                         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3984                             QLA82XX_DEV_FAILED);
3985                 } else {
3986                         qla_printk(KERN_INFO, ha, "HW State: READY\n");
3987                         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3988                             QLA82XX_DEV_READY);
3989                         qla82xx_idc_unlock(ha);
3990                         ha->flags.isp82xx_fw_hung = 0;
3991                         rval = qla82xx_restart_isp(base_vha);
3992                         qla82xx_idc_lock(ha);
3993                         /* Clear driver state register */
3994                         qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, 0);
3995                         qla82xx_set_drv_active(base_vha);
3996                 }
3997                 qla82xx_idc_unlock(ha);
3998         } else {
3999                 DEBUG17(qla_printk(KERN_INFO, ha,
4000                     "This devfn is not reset owner = 0x%x\n", ha->pdev->devfn));
4001                 if ((qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE) ==
4002                     QLA82XX_DEV_READY)) {
4003                         ha->flags.isp82xx_fw_hung = 0;
4004                         rval = qla82xx_restart_isp(base_vha);
4005                         qla82xx_idc_lock(ha);
4006                         qla82xx_set_drv_active(base_vha);
4007                         qla82xx_idc_unlock(ha);
4008                 }
4009         }
4010         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
4011
4012         return rval;
4013 }
4014
4015 static pci_ers_result_t
4016 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
4017 {
4018         pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
4019         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
4020         struct qla_hw_data *ha = base_vha->hw;
4021         struct rsp_que *rsp;
4022         int rc, retries = 10;
4023
4024         DEBUG17(qla_printk(KERN_WARNING, ha, "slot_reset\n"));
4025
4026         /* Workaround: qla2xxx driver which access hardware earlier
4027          * needs error state to be pci_channel_io_online.
4028          * Otherwise mailbox command timesout.
4029          */
4030         pdev->error_state = pci_channel_io_normal;
4031
4032         pci_restore_state(pdev);
4033
4034         /* pci_restore_state() clears the saved_state flag of the device
4035          * save restored state which resets saved_state flag
4036          */
4037         pci_save_state(pdev);
4038
4039         if (ha->mem_only)
4040                 rc = pci_enable_device_mem(pdev);
4041         else
4042                 rc = pci_enable_device(pdev);
4043
4044         if (rc) {
4045                 qla_printk(KERN_WARNING, ha,
4046                     "Can't re-enable PCI device after reset.\n");
4047                 goto exit_slot_reset;
4048         }
4049
4050         rsp = ha->rsp_q_map[0];
4051         if (qla2x00_request_irqs(ha, rsp))
4052                 goto exit_slot_reset;
4053
4054         if (ha->isp_ops->pci_config(base_vha))
4055                 goto exit_slot_reset;
4056
4057         if (IS_QLA82XX(ha)) {
4058                 if (qla82xx_error_recovery(base_vha) == QLA_SUCCESS) {
4059                         ret = PCI_ERS_RESULT_RECOVERED;
4060                         goto exit_slot_reset;
4061                 } else
4062                         goto exit_slot_reset;
4063         }
4064
4065         while (ha->flags.mbox_busy && retries--)
4066                 msleep(1000);
4067
4068         set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
4069         if (ha->isp_ops->abort_isp(base_vha) == QLA_SUCCESS)
4070                 ret =  PCI_ERS_RESULT_RECOVERED;
4071         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
4072
4073
4074 exit_slot_reset:
4075         DEBUG17(qla_printk(KERN_WARNING, ha,
4076             "slot_reset-return:ret=%x\n", ret));
4077
4078         return ret;
4079 }
4080
4081 static void
4082 qla2xxx_pci_resume(struct pci_dev *pdev)
4083 {
4084         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
4085         struct qla_hw_data *ha = base_vha->hw;
4086         int ret;
4087
4088         DEBUG17(qla_printk(KERN_WARNING, ha, "pci_resume\n"));
4089
4090         ret = qla2x00_wait_for_hba_online(base_vha);
4091         if (ret != QLA_SUCCESS) {
4092                 qla_printk(KERN_ERR, ha,
4093                     "the device failed to resume I/O "
4094                     "from slot/link_reset");
4095         }
4096
4097         pci_cleanup_aer_uncorrect_error_status(pdev);
4098
4099         ha->flags.eeh_busy = 0;
4100 }
4101
4102 static struct pci_error_handlers qla2xxx_err_handler = {
4103         .error_detected = qla2xxx_pci_error_detected,
4104         .mmio_enabled = qla2xxx_pci_mmio_enabled,
4105         .slot_reset = qla2xxx_pci_slot_reset,
4106         .resume = qla2xxx_pci_resume,
4107 };
4108
4109 static struct pci_device_id qla2xxx_pci_tbl[] = {
4110         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
4111         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
4112         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
4113         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
4114         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
4115         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
4116         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
4117         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
4118         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
4119         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) },
4120         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
4121         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
4122         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
4123         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8001) },
4124         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8021) },
4125         { 0 },
4126 };
4127 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
4128
4129 static struct pci_driver qla2xxx_pci_driver = {
4130         .name           = QLA2XXX_DRIVER_NAME,
4131         .driver         = {
4132                 .owner          = THIS_MODULE,
4133         },
4134         .id_table       = qla2xxx_pci_tbl,
4135         .probe          = qla2x00_probe_one,
4136         .remove         = qla2x00_remove_one,
4137         .shutdown       = qla2x00_shutdown,
4138         .err_handler    = &qla2xxx_err_handler,
4139 };
4140
4141 static struct file_operations apidev_fops = {
4142         .owner = THIS_MODULE,
4143         .llseek = noop_llseek,
4144 };
4145
4146 /**
4147  * qla2x00_module_init - Module initialization.
4148  **/
4149 static int __init
4150 qla2x00_module_init(void)
4151 {
4152         int ret = 0;
4153
4154         /* Allocate cache for SRBs. */
4155         srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
4156             SLAB_HWCACHE_ALIGN, NULL);
4157         if (srb_cachep == NULL) {
4158                 printk(KERN_ERR
4159                     "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
4160                 return -ENOMEM;
4161         }
4162
4163         /* Derive version string. */
4164         strcpy(qla2x00_version_str, QLA2XXX_VERSION);
4165         if (ql2xextended_error_logging)
4166                 strcat(qla2x00_version_str, "-debug");
4167
4168         qla2xxx_transport_template =
4169             fc_attach_transport(&qla2xxx_transport_functions);
4170         if (!qla2xxx_transport_template) {
4171                 kmem_cache_destroy(srb_cachep);
4172                 return -ENODEV;
4173         }
4174
4175         apidev_major = register_chrdev(0, QLA2XXX_APIDEV, &apidev_fops);
4176         if (apidev_major < 0) {
4177                 printk(KERN_WARNING "qla2xxx: Unable to register char device "
4178                     "%s\n", QLA2XXX_APIDEV);
4179         }
4180
4181         qla2xxx_transport_vport_template =
4182             fc_attach_transport(&qla2xxx_transport_vport_functions);
4183         if (!qla2xxx_transport_vport_template) {
4184                 kmem_cache_destroy(srb_cachep);
4185                 fc_release_transport(qla2xxx_transport_template);
4186                 return -ENODEV;
4187         }
4188
4189         printk(KERN_INFO "QLogic Fibre Channel HBA Driver: %s\n",
4190             qla2x00_version_str);
4191         ret = pci_register_driver(&qla2xxx_pci_driver);
4192         if (ret) {
4193                 kmem_cache_destroy(srb_cachep);
4194                 fc_release_transport(qla2xxx_transport_template);
4195                 fc_release_transport(qla2xxx_transport_vport_template);
4196         }
4197         return ret;
4198 }
4199
4200 /**
4201  * qla2x00_module_exit - Module cleanup.
4202  **/
4203 static void __exit
4204 qla2x00_module_exit(void)
4205 {
4206         unregister_chrdev(apidev_major, QLA2XXX_APIDEV);
4207         pci_unregister_driver(&qla2xxx_pci_driver);
4208         qla2x00_release_firmware();
4209         kmem_cache_destroy(srb_cachep);
4210         if (ctx_cachep)
4211                 kmem_cache_destroy(ctx_cachep);
4212         fc_release_transport(qla2xxx_transport_template);
4213         fc_release_transport(qla2xxx_transport_vport_template);
4214 }
4215
4216 module_init(qla2x00_module_init);
4217 module_exit(qla2x00_module_exit);
4218
4219 MODULE_AUTHOR("QLogic Corporation");
4220 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
4221 MODULE_LICENSE("GPL");
4222 MODULE_VERSION(QLA2XXX_VERSION);
4223 MODULE_FIRMWARE(FW_FILE_ISP21XX);
4224 MODULE_FIRMWARE(FW_FILE_ISP22XX);
4225 MODULE_FIRMWARE(FW_FILE_ISP2300);
4226 MODULE_FIRMWARE(FW_FILE_ISP2322);
4227 MODULE_FIRMWARE(FW_FILE_ISP24XX);
4228 MODULE_FIRMWARE(FW_FILE_ISP25XX);