drivers/scsi/qla2xxx/qla_os.c

   1 /*
   2  * QLogic Fibre Channel HBA Driver
   3  * Copyright (c)  2003-2010 QLogic Corporation
   4  *
   5  * See LICENSE.qla2xxx for copyright and licensing details.
   6  */
   7 #include "qla_def.h"
   8
   9 #include <linux/moduleparam.h>
  10 #include <linux/vmalloc.h>
  11 #include <linux/delay.h>
  12 #include <linux/kthread.h>
  13 #include <linux/mutex.h>
  14 #include <linux/kobject.h>
  15 #include <linux/slab.h>
  16
  17 #include <scsi/scsi_tcq.h>
  18 #include <scsi/scsicam.h>
  19 #include <scsi/scsi_transport.h>
  20 #include <scsi/scsi_transport_fc.h>
  21
  22 /*
  23  * Driver version
  24  */
  25 char qla2x00_version_str[40];
  26
  27 static int apidev_major;
  28
  29 /*
  30  * SRB allocation cache
  31  */
  32 static struct kmem_cache *srb_cachep;
  33
  34 /*
  35  * CT6 CTX allocation cache
  36  */
  37 static struct kmem_cache *ctx_cachep;
  38
  39 int ql2xlogintimeout = 20;
  40 module_param(ql2xlogintimeout, int, S_IRUGO|S_IRUSR);
  41 MODULE_PARM_DESC(ql2xlogintimeout,
  42                 "Login timeout value in seconds.");
  43
  44 int qlport_down_retry;
  45 module_param(qlport_down_retry, int, S_IRUGO|S_IRUSR);
  46 MODULE_PARM_DESC(qlport_down_retry,
  47                 "Maximum number of command retries to a port that returns "
  48                 "a PORT-DOWN status.");
  49
  50 int ql2xplogiabsentdevice;
  51 module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
  52 MODULE_PARM_DESC(ql2xplogiabsentdevice,
  53                 "Option to enable PLOGI to devices that are not present after "
  54                 "a Fabric scan.  This is needed for several broken switches. "
  55                 "Default is 0 - no PLOGI. 1 - perfom PLOGI.");
  56
  57 int ql2xloginretrycount = 0;
  58 module_param(ql2xloginretrycount, int, S_IRUGO|S_IRUSR);
  59 MODULE_PARM_DESC(ql2xloginretrycount,
  60                 "Specify an alternate value for the NVRAM login retry count.");
  61
  62 int ql2xallocfwdump = 1;
  63 module_param(ql2xallocfwdump, int, S_IRUGO|S_IRUSR);
  64 MODULE_PARM_DESC(ql2xallocfwdump,
  65                 "Option to enable allocation of memory for a firmware dump "
  66                 "during HBA initialization.  Memory allocation requirements "
  67                 "vary by ISP type.  Default is 1 - allocate memory.");
  68
  69 int ql2xextended_error_logging;
  70 module_param(ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
  71 MODULE_PARM_DESC(ql2xextended_error_logging,
  72                 "Option to enable extended error logging, "
  73                 "Default is 0 - no logging. 1 - log errors.");
  74
  75 int ql2xshiftctondsd = 6;
  76 module_param(ql2xshiftctondsd, int, S_IRUGO|S_IRUSR);
  77 MODULE_PARM_DESC(ql2xshiftctondsd,
  78                 "Set to control shifting of command type processing "
  79                 "based on total number of SG elements.");
  80
  81 static void qla2x00_free_device(scsi_qla_host_t *);
  82
  83 int ql2xfdmienable=1;
  84 module_param(ql2xfdmienable, int, S_IRUGO|S_IRUSR);
  85 MODULE_PARM_DESC(ql2xfdmienable,
  86                 "Enables FDMI registrations. "
  87                 "0 - no FDMI. Default is 1 - perform FDMI.");
  88
  89 #define MAX_Q_DEPTH    32
  90 static int ql2xmaxqdepth = MAX_Q_DEPTH;
  91 module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
  92 MODULE_PARM_DESC(ql2xmaxqdepth,
  93                 "Maximum queue depth to report for target devices.");
  94
  95 /* Do not change the value of this after module load */
  96 int ql2xenabledif = 1;
  97 module_param(ql2xenabledif, int, S_IRUGO|S_IWUSR);
  98 MODULE_PARM_DESC(ql2xenabledif,
  99                 " Enable T10-CRC-DIF "
 100                 " Default is 0 - No DIF Support. 1 - Enable it");
 101
 102 int ql2xenablehba_err_chk;
 103 module_param(ql2xenablehba_err_chk, int, S_IRUGO|S_IWUSR);
 104 MODULE_PARM_DESC(ql2xenablehba_err_chk,
 105                 " Enable T10-CRC-DIF Error isolation by HBA"
 106                 " Default is 0 - Error isolation disabled, 1 - Enable it");
 107
 108 int ql2xiidmaenable=1;
 109 module_param(ql2xiidmaenable, int, S_IRUGO|S_IRUSR);
 110 MODULE_PARM_DESC(ql2xiidmaenable,
 111                 "Enables iIDMA settings "
 112                 "Default is 1 - perform iIDMA. 0 - no iIDMA.");
 113
 114 int ql2xmaxqueues = 1;
 115 module_param(ql2xmaxqueues, int, S_IRUGO|S_IRUSR);
 116 MODULE_PARM_DESC(ql2xmaxqueues,
 117                 "Enables MQ settings "
 118                 "Default is 1 for single queue. Set it to number "
 119                 "of queues in MQ mode.");
 120
 121 int ql2xmultique_tag;
 122 module_param(ql2xmultique_tag, int, S_IRUGO|S_IRUSR);
 123 MODULE_PARM_DESC(ql2xmultique_tag,
 124                 "Enables CPU affinity settings for the driver "
 125                 "Default is 0 for no affinity of request and response IO. "
 126                 "Set it to 1 to turn on the cpu affinity.");
 127
 128 int ql2xfwloadbin;
 129 module_param(ql2xfwloadbin, int, S_IRUGO|S_IRUSR);
 130 MODULE_PARM_DESC(ql2xfwloadbin,
 131                 "Option to specify location from which to load ISP firmware:\n"
 132                 " 2 -- load firmware via the request_firmware() (hotplug)\n"
 133                 "      interface.\n"
 134                 " 1 -- load firmware from flash.\n"
 135                 " 0 -- use default semantics.\n");
 136
 137 int ql2xetsenable;
 138 module_param(ql2xetsenable, int, S_IRUGO|S_IRUSR);
 139 MODULE_PARM_DESC(ql2xetsenable,
 140                 "Enables firmware ETS burst."
 141                 "Default is 0 - skip ETS enablement.");
 142
 143 int ql2xdbwr = 1;
 144 module_param(ql2xdbwr, int, S_IRUGO|S_IRUSR);
 145 MODULE_PARM_DESC(ql2xdbwr,
 146         "Option to specify scheme for request queue posting\n"
 147         " 0 -- Regular doorbell.\n"
 148         " 1 -- CAMRAM doorbell (faster).\n");
 149
 150 int ql2xdontresethba;
 151 module_param(ql2xdontresethba, int, S_IRUGO|S_IRUSR);
 152 MODULE_PARM_DESC(ql2xdontresethba,
 153         "Option to specify reset behaviour\n"
 154         " 0 (Default) -- Reset on failure.\n"
 155         " 1 -- Do not reset on failure.\n");
 156
 157 int ql2xtargetreset = 1;
 158 module_param(ql2xtargetreset, int, S_IRUGO|S_IRUSR);
 159 MODULE_PARM_DESC(ql2xtargetreset,
 160                  "Enable target reset."
 161                  "Default is 1 - use hw defaults.");
 162
 163 int ql2xgffidenable;
 164 module_param(ql2xgffidenable, int, S_IRUGO|S_IRUSR);
 165 MODULE_PARM_DESC(ql2xgffidenable,
 166                 "Enables GFF_ID checks of port type. "
 167                 "Default is 0 - Do not use GFF_ID information.");
 168
 169 int ql2xasynctmfenable;
 170 module_param(ql2xasynctmfenable, int, S_IRUGO|S_IRUSR);
 171 MODULE_PARM_DESC(ql2xasynctmfenable,
 172                 "Enables issue of TM IOCBs asynchronously via IOCB mechanism"
 173                 "Default is 0 - Issue TM IOCBs via mailbox mechanism.");
 174 /*
 175  * SCSI host template entry points
 176  */
 177 static int qla2xxx_slave_configure(struct scsi_device * device);
 178 static int qla2xxx_slave_alloc(struct scsi_device *);
 179 static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
 180 static void qla2xxx_scan_start(struct Scsi_Host *);
 181 static void qla2xxx_slave_destroy(struct scsi_device *);
 182 static int qla2xxx_queuecommand(struct scsi_cmnd *cmd,
 183                 void (*fn)(struct scsi_cmnd *));
 184 static int qla2xxx_eh_abort(struct scsi_cmnd *);
 185 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
 186 static int qla2xxx_eh_target_reset(struct scsi_cmnd *);
 187 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
 188 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
 189
 190 static int qla2x00_change_queue_depth(struct scsi_device *, int, int);
 191 static int qla2x00_change_queue_type(struct scsi_device *, int);
 192
 193 struct scsi_host_template qla2xxx_driver_template = {
 194         .module                 = THIS_MODULE,
 195         .name                   = QLA2XXX_DRIVER_NAME,
 196         .queuecommand           = qla2xxx_queuecommand,
 197
 198         .eh_abort_handler       = qla2xxx_eh_abort,
 199         .eh_device_reset_handler = qla2xxx_eh_device_reset,
 200         .eh_target_reset_handler = qla2xxx_eh_target_reset,
 201         .eh_bus_reset_handler   = qla2xxx_eh_bus_reset,
 202         .eh_host_reset_handler  = qla2xxx_eh_host_reset,
 203
 204         .slave_configure        = qla2xxx_slave_configure,
 205
 206         .slave_alloc            = qla2xxx_slave_alloc,
 207         .slave_destroy          = qla2xxx_slave_destroy,
 208         .scan_finished          = qla2xxx_scan_finished,
 209         .scan_start             = qla2xxx_scan_start,
 210         .change_queue_depth     = qla2x00_change_queue_depth,
 211         .change_queue_type      = qla2x00_change_queue_type,
 212         .this_id                = -1,
 213         .cmd_per_lun            = 3,
 214         .use_clustering         = ENABLE_CLUSTERING,
 215         .sg_tablesize           = SG_ALL,
 216
 217         .max_sectors            = 0xFFFF,
 218         .shost_attrs            = qla2x00_host_attrs,
 219 };
 220
 221 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
 222 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
 223
 224 /* TODO Convert to inlines
 225  *
 226  * Timer routines
 227  */
 228
 229 __inline__ void
 230 qla2x00_start_timer(scsi_qla_host_t *vha, void *func, unsigned long interval)
 231 {
 232         init_timer(&vha->timer);
 233         vha->timer.expires = jiffies + interval * HZ;
 234         vha->timer.data = (unsigned long)vha;
 235         vha->timer.function = (void (*)(unsigned long))func;
 236         add_timer(&vha->timer);
 237         vha->timer_active = 1;
 238 }
 239
 240 static inline void
 241 qla2x00_restart_timer(scsi_qla_host_t *vha, unsigned long interval)
 242 {
 243         /* Currently used for 82XX only. */
 244         if (vha->device_flags & DFLG_DEV_FAILED)
 245                 return;
 246
 247         mod_timer(&vha->timer, jiffies + interval * HZ);
 248 }
 249
 250 static __inline__ void
 251 qla2x00_stop_timer(scsi_qla_host_t *vha)
 252 {
 253         del_timer_sync(&vha->timer);
 254         vha->timer_active = 0;
 255 }
 256
 257 static int qla2x00_do_dpc(void *data);
 258
 259 static void qla2x00_rst_aen(scsi_qla_host_t *);
 260
 261 static int qla2x00_mem_alloc(struct qla_hw_data *, uint16_t, uint16_t,
 262         struct req_que **, struct rsp_que **);
 263 static void qla2x00_free_fw_dump(struct qla_hw_data *);
 264 static void qla2x00_mem_free(struct qla_hw_data *);
 265 static void qla2x00_sp_free_dma(srb_t *);
 266
 267 /* -------------------------------------------------------------------------- */
 268 static int qla2x00_alloc_queues(struct qla_hw_data *ha)
 269 {
 270         ha->req_q_map = kzalloc(sizeof(struct req_que *) * ha->max_req_queues,
 271                                 GFP_KERNEL);
 272         if (!ha->req_q_map) {
 273                 qla_printk(KERN_WARNING, ha,
 274                         "Unable to allocate memory for request queue ptrs\n");
 275                 goto fail_req_map;
 276         }
 277
 278         ha->rsp_q_map = kzalloc(sizeof(struct rsp_que *) * ha->max_rsp_queues,
 279                                 GFP_KERNEL);
 280         if (!ha->rsp_q_map) {
 281                 qla_printk(KERN_WARNING, ha,
 282                         "Unable to allocate memory for response queue ptrs\n");
 283                 goto fail_rsp_map;
 284         }
 285         set_bit(0, ha->rsp_qid_map);
 286         set_bit(0, ha->req_qid_map);
 287         return 1;
 288
 289 fail_rsp_map:
 290         kfree(ha->req_q_map);
 291         ha->req_q_map = NULL;
 292 fail_req_map:
 293         return -ENOMEM;
 294 }
 295
 296 static void qla2x00_free_req_que(struct qla_hw_data *ha, struct req_que *req)
 297 {
 298         if (req && req->ring)
 299                 dma_free_coherent(&ha->pdev->dev,
 300                 (req->length + 1) * sizeof(request_t),
 301                 req->ring, req->dma);
 302
 303         kfree(req);
 304         req = NULL;
 305 }
 306
 307 static void qla2x00_free_rsp_que(struct qla_hw_data *ha, struct rsp_que *rsp)
 308 {
 309         if (rsp && rsp->ring)
 310                 dma_free_coherent(&ha->pdev->dev,
 311                 (rsp->length + 1) * sizeof(response_t),
 312                 rsp->ring, rsp->dma);
 313
 314         kfree(rsp);
 315         rsp = NULL;
 316 }
 317
 318 static void qla2x00_free_queues(struct qla_hw_data *ha)
 319 {
 320         struct req_que *req;
 321         struct rsp_que *rsp;
 322         int cnt;
 323
 324         for (cnt = 0; cnt < ha->max_req_queues; cnt++) {
 325                 req = ha->req_q_map[cnt];
 326                 qla2x00_free_req_que(ha, req);
 327         }
 328         kfree(ha->req_q_map);
 329         ha->req_q_map = NULL;
 330
 331         for (cnt = 0; cnt < ha->max_rsp_queues; cnt++) {
 332                 rsp = ha->rsp_q_map[cnt];
 333                 qla2x00_free_rsp_que(ha, rsp);
 334         }
 335         kfree(ha->rsp_q_map);
 336         ha->rsp_q_map = NULL;
 337 }
 338
 339 static int qla25xx_setup_mode(struct scsi_qla_host *vha)
 340 {
 341         uint16_t options = 0;
 342         int ques, req, ret;
 343         struct qla_hw_data *ha = vha->hw;
 344
 345         if (!(ha->fw_attributes & BIT_6)) {
 346                 qla_printk(KERN_INFO, ha,
 347                         "Firmware is not multi-queue capable\n");
 348                 goto fail;
 349         }
 350         if (ql2xmultique_tag) {
 351                 /* create a request queue for IO */
 352                 options |= BIT_7;
 353                 req = qla25xx_create_req_que(ha, options, 0, 0, -1,
 354                         QLA_DEFAULT_QUE_QOS);
 355                 if (!req) {
 356                         qla_printk(KERN_WARNING, ha,
 357                                 "Can't create request queue\n");
 358                         goto fail;
 359                 }
 360                 ha->wq = create_workqueue("qla2xxx_wq");
 361                 vha->req = ha->req_q_map[req];
 362                 options |= BIT_1;
 363                 for (ques = 1; ques < ha->max_rsp_queues; ques++) {
 364                         ret = qla25xx_create_rsp_que(ha, options, 0, 0, req);
 365                         if (!ret) {
 366                                 qla_printk(KERN_WARNING, ha,
 367                                         "Response Queue create failed\n");
 368                                 goto fail2;
 369                         }
 370                 }
 371                 ha->flags.cpu_affinity_enabled = 1;
 372
 373                 DEBUG2(qla_printk(KERN_INFO, ha,
 374                         "CPU affinity mode enabled, no. of response"
 375                         " queues:%d, no. of request queues:%d\n",
 376                         ha->max_rsp_queues, ha->max_req_queues));
 377         }
 378         return 0;
 379 fail2:
 380         qla25xx_delete_queues(vha);
 381         destroy_workqueue(ha->wq);
 382         ha->wq = NULL;
 383 fail:
 384         ha->mqenable = 0;
 385         kfree(ha->req_q_map);
 386         kfree(ha->rsp_q_map);
 387         ha->max_req_queues = ha->max_rsp_queues = 1;
 388         return 1;
 389 }
 390
 391 static char *
 392 qla2x00_pci_info_str(struct scsi_qla_host *vha, char *str)
 393 {
 394         struct qla_hw_data *ha = vha->hw;
 395         static char *pci_bus_modes[] = {
 396                 "33", "66", "100", "133",
 397         };
 398         uint16_t pci_bus;
 399
 400         strcpy(str, "PCI");
 401         pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
 402         if (pci_bus) {
 403                 strcat(str, "-X (");
 404                 strcat(str, pci_bus_modes[pci_bus]);
 405         } else {
 406                 pci_bus = (ha->pci_attr & BIT_8) >> 8;
 407                 strcat(str, " (");
 408                 strcat(str, pci_bus_modes[pci_bus]);
 409         }
 410         strcat(str, " MHz)");
 411
 412         return (str);
 413 }
 414
 415 static char *
 416 qla24xx_pci_info_str(struct scsi_qla_host *vha, char *str)
 417 {
 418         static char *pci_bus_modes[] = { "33", "66", "100", "133", };
 419         struct qla_hw_data *ha = vha->hw;
 420         uint32_t pci_bus;
 421         int pcie_reg;
 422
 423         pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
 424         if (pcie_reg) {
 425                 char lwstr[6];
 426                 uint16_t pcie_lstat, lspeed, lwidth;
 427
 428                 pcie_reg += 0x12;
 429                 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
 430                 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
 431                 lwidth = (pcie_lstat &
 432                     (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
 433
 434                 strcpy(str, "PCIe (");
 435                 if (lspeed == 1)
 436                         strcat(str, "2.5GT/s ");
 437                 else if (lspeed == 2)
 438                         strcat(str, "5.0GT/s ");
 439                 else
 440                         strcat(str, "<unknown> ");
 441                 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
 442                 strcat(str, lwstr);
 443
 444                 return str;
 445         }
 446
 447         strcpy(str, "PCI");
 448         pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
 449         if (pci_bus == 0 || pci_bus == 8) {
 450                 strcat(str, " (");
 451                 strcat(str, pci_bus_modes[pci_bus >> 3]);
 452         } else {
 453                 strcat(str, "-X ");
 454                 if (pci_bus & BIT_2)
 455                         strcat(str, "Mode 2");
 456                 else
 457                         strcat(str, "Mode 1");
 458                 strcat(str, " (");
 459                 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
 460         }
 461         strcat(str, " MHz)");
 462
 463         return str;
 464 }
 465
 466 static char *
 467 qla2x00_fw_version_str(struct scsi_qla_host *vha, char *str)
 468 {
 469         char un_str[10];
 470         struct qla_hw_data *ha = vha->hw;
 471
 472         sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
 473             ha->fw_minor_version,
 474             ha->fw_subminor_version);
 475
 476         if (ha->fw_attributes & BIT_9) {
 477                 strcat(str, "FLX");
 478                 return (str);
 479         }
 480
 481         switch (ha->fw_attributes & 0xFF) {
 482         case 0x7:
 483                 strcat(str, "EF");
 484                 break;
 485         case 0x17:
 486                 strcat(str, "TP");
 487                 break;
 488         case 0x37:
 489                 strcat(str, "IP");
 490                 break;
 491         case 0x77:
 492                 strcat(str, "VI");
 493                 break;
 494         default:
 495                 sprintf(un_str, "(%x)", ha->fw_attributes);
 496                 strcat(str, un_str);
 497                 break;
 498         }
 499         if (ha->fw_attributes & 0x100)
 500                 strcat(str, "X");
 501
 502         return (str);
 503 }
 504
 505 static char *
 506 qla24xx_fw_version_str(struct scsi_qla_host *vha, char *str)
 507 {
 508         struct qla_hw_data *ha = vha->hw;
 509
 510         sprintf(str, "%d.%02d.%02d (%x)", ha->fw_major_version,
 511             ha->fw_minor_version, ha->fw_subminor_version, ha->fw_attributes);
 512         return str;
 513 }
 514
 515 static inline srb_t *
 516 qla2x00_get_new_sp(scsi_qla_host_t *vha, fc_port_t *fcport,
 517     struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 518 {
 519         srb_t *sp;
 520         struct qla_hw_data *ha = vha->hw;
 521
 522         sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
 523         if (!sp)
 524                 return sp;
 525
 526         atomic_set(&sp->ref_count, 1);
 527         sp->fcport = fcport;
 528         sp->cmd = cmd;
 529         sp->flags = 0;
 530         CMD_SP(cmd) = (void *)sp;
 531         cmd->scsi_done = done;
 532         sp->ctx = NULL;
 533
 534         return sp;
 535 }
 536
 537 static int
 538 qla2xxx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 539 {
 540         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 541         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 542         struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
 543         struct qla_hw_data *ha = vha->hw;
 544         struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
 545         srb_t *sp;
 546         int rval;
 547
 548         if (ha->flags.eeh_busy) {
 549                 if (ha->flags.pci_channel_io_perm_failure)
 550                         cmd->result = DID_NO_CONNECT << 16;
 551                 else
 552                         cmd->result = DID_REQUEUE << 16;
 553                 goto qc24_fail_command;
 554         }
 555
 556         rval = fc_remote_port_chkready(rport);
 557         if (rval) {
 558                 cmd->result = rval;
 559                 goto qc24_fail_command;
 560         }
 561
 562         /* Close window on fcport/rport state-transitioning. */
 563         if (fcport->drport)
 564                 goto qc24_target_busy;
 565
 566         if (!vha->flags.difdix_supported &&
 567                 scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) {
 568                         DEBUG2(qla_printk(KERN_ERR, ha,
 569                             "DIF Cap Not Reg, fail DIF capable cmd's:%x\n",
 570                             cmd->cmnd[0]));
 571                         cmd->result = DID_NO_CONNECT << 16;
 572                         goto qc24_fail_command;
 573         }
 574         if (atomic_read(&fcport->state) != FCS_ONLINE) {
 575                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
 576                     atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
 577                         cmd->result = DID_NO_CONNECT << 16;
 578                         goto qc24_fail_command;
 579                 }
 580                 goto qc24_target_busy;
 581         }
 582
 583         spin_unlock_irq(vha->host->host_lock);
 584
 585         sp = qla2x00_get_new_sp(base_vha, fcport, cmd, done);
 586         if (!sp)
 587                 goto qc24_host_busy_lock;
 588
 589         rval = ha->isp_ops->start_scsi(sp);
 590         if (rval != QLA_SUCCESS)
 591                 goto qc24_host_busy_free_sp;
 592
 593         spin_lock_irq(vha->host->host_lock);
 594
 595         return 0;
 596
 597 qc24_host_busy_free_sp:
 598         qla2x00_sp_free_dma(sp);
 599         mempool_free(sp, ha->srb_mempool);
 600
 601 qc24_host_busy_lock:
 602         spin_lock_irq(vha->host->host_lock);
 603         return SCSI_MLQUEUE_HOST_BUSY;
 604
 605 qc24_target_busy:
 606         return SCSI_MLQUEUE_TARGET_BUSY;
 607
 608 qc24_fail_command:
 609         done(cmd);
 610
 611         return 0;
 612 }
 613
 614
 615 /*
 616  * qla2x00_eh_wait_on_command
 617  *    Waits for the command to be returned by the Firmware for some
 618  *    max time.
 619  *
 620  * Input:
 621  *    cmd = Scsi Command to wait on.
 622  *
 623  * Return:
 624  *    Not Found : 0
 625  *    Found : 1
 626  */
 627 static int
 628 qla2x00_eh_wait_on_command(struct scsi_cmnd *cmd)
 629 {
 630 #define ABORT_POLLING_PERIOD    1000
 631 #define ABORT_WAIT_ITER         ((10 * 1000) / (ABORT_POLLING_PERIOD))
 632         unsigned long wait_iter = ABORT_WAIT_ITER;
 633         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 634         struct qla_hw_data *ha = vha->hw;
 635         int ret = QLA_SUCCESS;
 636
 637         if (unlikely(pci_channel_offline(ha->pdev)) || ha->flags.eeh_busy) {
 638                 DEBUG17(qla_printk(KERN_WARNING, ha, "return:eh_wait\n"));
 639                 return ret;
 640         }
 641
 642         while (CMD_SP(cmd) && wait_iter--) {
 643                 msleep(ABORT_POLLING_PERIOD);
 644         }
 645         if (CMD_SP(cmd))
 646                 ret = QLA_FUNCTION_FAILED;
 647
 648         return ret;
 649 }
 650
 651 /*
 652  * qla2x00_wait_for_hba_online
 653  *    Wait till the HBA is online after going through
 654  *    <= MAX_RETRIES_OF_ISP_ABORT  or
 655  *    finally HBA is disabled ie marked offline
 656  *
 657  * Input:
 658  *     ha - pointer to host adapter structure
 659  *
 660  * Note:
 661  *    Does context switching-Release SPIN_LOCK
 662  *    (if any) before calling this routine.
 663  *
 664  * Return:
 665  *    Success (Adapter is online) : 0
 666  *    Failed  (Adapter is offline/disabled) : 1
 667  */
 668 int
 669 qla2x00_wait_for_hba_online(scsi_qla_host_t *vha)
 670 {
 671         int             return_status;
 672         unsigned long   wait_online;
 673         struct qla_hw_data *ha = vha->hw;
 674         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 675
 676         wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 677         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 678             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 679             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 680             ha->dpc_active) && time_before(jiffies, wait_online)) {
 681
 682                 msleep(1000);
 683         }
 684         if (base_vha->flags.online)
 685                 return_status = QLA_SUCCESS;
 686         else
 687                 return_status = QLA_FUNCTION_FAILED;
 688
 689         return (return_status);
 690 }
 691
 692 /*
 693  * qla2x00_wait_for_reset_ready
 694  *    Wait till the HBA is online after going through
 695  *    <= MAX_RETRIES_OF_ISP_ABORT  or
 696  *    finally HBA is disabled ie marked offline or flash
 697  *    operations are in progress.
 698  *
 699  * Input:
 700  *     ha - pointer to host adapter structure
 701  *
 702  * Note:
 703  *    Does context switching-Release SPIN_LOCK
 704  *    (if any) before calling this routine.
 705  *
 706  * Return:
 707  *    Success (Adapter is online/no flash ops) : 0
 708  *    Failed  (Adapter is offline/disabled/flash ops in progress) : 1
 709  */
 710 static int
 711 qla2x00_wait_for_reset_ready(scsi_qla_host_t *vha)
 712 {
 713         int             return_status;
 714         unsigned long   wait_online;
 715         struct qla_hw_data *ha = vha->hw;
 716         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 717
 718         wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 719         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 720             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 721             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 722             ha->optrom_state != QLA_SWAITING ||
 723             ha->dpc_active) && time_before(jiffies, wait_online))
 724                 msleep(1000);
 725
 726         if (base_vha->flags.online &&  ha->optrom_state == QLA_SWAITING)
 727                 return_status = QLA_SUCCESS;
 728         else
 729                 return_status = QLA_FUNCTION_FAILED;
 730
 731         DEBUG2(printk("%s return_status=%d\n", __func__, return_status));
 732
 733         return return_status;
 734 }
 735
 736 int
 737 qla2x00_wait_for_chip_reset(scsi_qla_host_t *vha)
 738 {
 739         int             return_status;
 740         unsigned long   wait_reset;
 741         struct qla_hw_data *ha = vha->hw;
 742         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 743
 744         wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 745         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 746             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 747             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 748             ha->dpc_active) && time_before(jiffies, wait_reset)) {
 749
 750                 msleep(1000);
 751
 752                 if (!test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags) &&
 753                     ha->flags.chip_reset_done)
 754                         break;
 755         }
 756         if (ha->flags.chip_reset_done)
 757                 return_status = QLA_SUCCESS;
 758         else
 759                 return_status = QLA_FUNCTION_FAILED;
 760
 761         return return_status;
 762 }
 763
 764 /*
 765  * qla2x00_wait_for_loop_ready
 766  *    Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
 767  *    to be in LOOP_READY state.
 768  * Input:
 769  *     ha - pointer to host adapter structure
 770  *
 771  * Note:
 772  *    Does context switching-Release SPIN_LOCK
 773  *    (if any) before calling this routine.
 774  *
 775  *
 776  * Return:
 777  *    Success (LOOP_READY) : 0
 778  *    Failed  (LOOP_NOT_READY) : 1
 779  */
 780 static inline int
 781 qla2x00_wait_for_loop_ready(scsi_qla_host_t *vha)
 782 {
 783         int      return_status = QLA_SUCCESS;
 784         unsigned long loop_timeout ;
 785         struct qla_hw_data *ha = vha->hw;
 786         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 787
 788         /* wait for 5 min at the max for loop to be ready */
 789         loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 790
 791         while ((!atomic_read(&base_vha->loop_down_timer) &&
 792             atomic_read(&base_vha->loop_state) == LOOP_DOWN) ||
 793             atomic_read(&base_vha->loop_state) != LOOP_READY) {
 794                 if (atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
 795                         return_status = QLA_FUNCTION_FAILED;
 796                         break;
 797                 }
 798                 msleep(1000);
 799                 if (time_after_eq(jiffies, loop_timeout)) {
 800                         return_status = QLA_FUNCTION_FAILED;
 801                         break;
 802                 }
 803         }
 804         return (return_status);
 805 }
 806
 807 static void
 808 sp_get(struct srb *sp)
 809 {
 810         atomic_inc(&sp->ref_count);
 811 }
 812
 813 /**************************************************************************
 814 * qla2xxx_eh_abort
 815 *
 816 * Description:
 817 *    The abort function will abort the specified command.
 818 *
 819 * Input:
 820 *    cmd = Linux SCSI command packet to be aborted.
 821 *
 822 * Returns:
 823 *    Either SUCCESS or FAILED.
 824 *
 825 * Note:
 826 *    Only return FAILED if command not returned by firmware.
 827 **************************************************************************/
 828 static int
 829 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
 830 {
 831         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 832         srb_t *sp;
 833         int ret, i;
 834         unsigned int id, lun;
 835         unsigned long flags;
 836         int wait = 0;
 837         struct qla_hw_data *ha = vha->hw;
 838         struct req_que *req = vha->req;
 839         srb_t *spt;
 840         int got_ref = 0;
 841
 842         fc_block_scsi_eh(cmd);
 843
 844         if (!CMD_SP(cmd))
 845                 return SUCCESS;
 846
 847         ret = SUCCESS;
 848
 849         id = cmd->device->id;
 850         lun = cmd->device->lun;
 851         spt = (srb_t *) CMD_SP(cmd);
 852         if (!spt)
 853                 return SUCCESS;
 854
 855         /* Check active list for command command. */
 856         spin_lock_irqsave(&ha->hardware_lock, flags);
 857         for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
 858                 sp = req->outstanding_cmds[i];
 859
 860                 if (sp == NULL)
 861                         continue;
 862                 if ((sp->ctx) && !(sp->flags & SRB_FCP_CMND_DMA_VALID) &&
 863                     !IS_PROT_IO(sp))
 864                         continue;
 865                 if (sp->cmd != cmd)
 866                         continue;
 867
 868                 DEBUG2(printk("%s(%ld): aborting sp %p from RISC.",
 869                     __func__, vha->host_no, sp));
 870
 871                 /* Get a reference to the sp and drop the lock.*/
 872                 sp_get(sp);
 873                 got_ref++;
 874
 875                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 876                 if (ha->isp_ops->abort_command(sp)) {
 877                         DEBUG2(printk("%s(%ld): abort_command "
 878                         "mbx failed.\n", __func__, vha->host_no));
 879                         ret = FAILED;
 880                 } else {
 881                         DEBUG3(printk("%s(%ld): abort_command "
 882                         "mbx success.\n", __func__, vha->host_no));
 883                         wait = 1;
 884                 }
 885                 spin_lock_irqsave(&ha->hardware_lock, flags);
 886                 break;
 887         }
 888         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 889
 890         /* Wait for the command to be returned. */
 891         if (wait) {
 892                 if (qla2x00_eh_wait_on_command(cmd) != QLA_SUCCESS) {
 893                         qla_printk(KERN_ERR, ha,
 894                             "scsi(%ld:%d:%d): Abort handler timed out -- %x.\n",
 895                             vha->host_no, id, lun, ret);
 896                         ret = FAILED;
 897                 }
 898         }
 899
 900         if (got_ref)
 901                 qla2x00_sp_compl(ha, sp);
 902
 903         qla_printk(KERN_INFO, ha,
 904             "scsi(%ld:%d:%d): Abort command issued -- %d %x.\n",
 905             vha->host_no, id, lun, wait, ret);
 906
 907         return ret;
 908 }
 909
 910 int
 911 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *vha, unsigned int t,
 912         unsigned int l, enum nexus_wait_type type)
 913 {
 914         int cnt, match, status;
 915         unsigned long flags;
 916         struct qla_hw_data *ha = vha->hw;
 917         struct req_que *req;
 918         srb_t *sp;
 919
 920         status = QLA_SUCCESS;
 921
 922         spin_lock_irqsave(&ha->hardware_lock, flags);
 923         req = vha->req;
 924         for (cnt = 1; status == QLA_SUCCESS &&
 925                 cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
 926                 sp = req->outstanding_cmds[cnt];
 927                 if (!sp)
 928                         continue;
 929                 if ((sp->ctx) && !IS_PROT_IO(sp))
 930                         continue;
 931                 if (vha->vp_idx != sp->fcport->vha->vp_idx)
 932                         continue;
 933                 match = 0;
 934                 switch (type) {
 935                 case WAIT_HOST:
 936                         match = 1;
 937                         break;
 938                 case WAIT_TARGET:
 939                         match = sp->cmd->device->id == t;
 940                         break;
 941                 case WAIT_LUN:
 942                         match = (sp->cmd->device->id == t &&
 943                                 sp->cmd->device->lun == l);
 944                         break;
 945                 }
 946                 if (!match)
 947                         continue;
 948
 949                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 950                 status = qla2x00_eh_wait_on_command(sp->cmd);
 951                 spin_lock_irqsave(&ha->hardware_lock, flags);
 952         }
 953         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 954
 955         return status;
 956 }
 957
 958 static char *reset_errors[] = {
 959         "HBA not online",
 960         "HBA not ready",
 961         "Task management failed",
 962         "Waiting for command completions",
 963 };
 964
 965 static int
 966 __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
 967     struct scsi_cmnd *cmd, int (*do_reset)(struct fc_port *, unsigned int, int))
 968 {
 969         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 970         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 971         int err;
 972
 973         fc_block_scsi_eh(cmd);
 974
 975         if (!fcport)
 976                 return FAILED;
 977
 978         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET ISSUED.\n",
 979             vha->host_no, cmd->device->id, cmd->device->lun, name);
 980
 981         err = 0;
 982         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
 983                 goto eh_reset_failed;
 984         err = 1;
 985         if (qla2x00_wait_for_loop_ready(vha) != QLA_SUCCESS)
 986                 goto eh_reset_failed;
 987         err = 2;
 988         if (do_reset(fcport, cmd->device->lun, cmd->request->cpu + 1)
 989                 != QLA_SUCCESS)
 990                 goto eh_reset_failed;
 991         err = 3;
 992         if (qla2x00_eh_wait_for_pending_commands(vha, cmd->device->id,
 993             cmd->device->lun, type) != QLA_SUCCESS)
 994                 goto eh_reset_failed;
 995
 996         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET SUCCEEDED.\n",
 997             vha->host_no, cmd->device->id, cmd->device->lun, name);
 998
 999         return SUCCESS;
1000
1001 eh_reset_failed:
1002         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET FAILED: %s.\n"
1003             , vha->host_no, cmd->device->id, cmd->device->lun, name,
1004             reset_errors[err]);
1005         return FAILED;
1006 }
1007
1008 static int
1009 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
1010 {
1011         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1012         struct qla_hw_data *ha = vha->hw;
1013
1014         return __qla2xxx_eh_generic_reset("DEVICE", WAIT_LUN, cmd,
1015             ha->isp_ops->lun_reset);
1016 }
1017
1018 static int
1019 qla2xxx_eh_target_reset(struct scsi_cmnd *cmd)
1020 {
1021         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1022         struct qla_hw_data *ha = vha->hw;
1023
1024         return __qla2xxx_eh_generic_reset("TARGET", WAIT_TARGET, cmd,
1025             ha->isp_ops->target_reset);
1026 }
1027
1028 /**************************************************************************
1029 * qla2xxx_eh_bus_reset
1030 *
1031 * Description:
1032 *    The bus reset function will reset the bus and abort any executing
1033 *    commands.
1034 *
1035 * Input:
1036 *    cmd = Linux SCSI command packet of the command that cause the
1037 *          bus reset.
1038 *
1039 * Returns:
1040 *    SUCCESS/FAILURE (defined as macro in scsi.h).
1041 *
1042 **************************************************************************/
1043 static int
1044 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
1045 {
1046         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1047         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1048         int ret = FAILED;
1049         unsigned int id, lun;
1050
1051         fc_block_scsi_eh(cmd);
1052
1053         id = cmd->device->id;
1054         lun = cmd->device->lun;
1055
1056         if (!fcport)
1057                 return ret;
1058
1059         qla_printk(KERN_INFO, vha->hw,
1060             "scsi(%ld:%d:%d): BUS RESET ISSUED.\n", vha->host_no, id, lun);
1061
1062         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1063                 DEBUG2(printk("%s failed:board disabled\n",__func__));
1064                 goto eh_bus_reset_done;
1065         }
1066
1067         if (qla2x00_wait_for_loop_ready(vha) == QLA_SUCCESS) {
1068                 if (qla2x00_loop_reset(vha) == QLA_SUCCESS)
1069                         ret = SUCCESS;
1070         }
1071         if (ret == FAILED)
1072                 goto eh_bus_reset_done;
1073
1074         /* Flush outstanding commands. */
1075         if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST) !=
1076             QLA_SUCCESS)
1077                 ret = FAILED;
1078
1079 eh_bus_reset_done:
1080         qla_printk(KERN_INFO, vha->hw, "%s: reset %s\n", __func__,
1081             (ret == FAILED) ? "failed" : "succeded");
1082
1083         return ret;
1084 }
1085
1086 /**************************************************************************
1087 * qla2xxx_eh_host_reset
1088 *
1089 * Description:
1090 *    The reset function will reset the Adapter.
1091 *
1092 * Input:
1093 *      cmd = Linux SCSI command packet of the command that cause the
1094 *            adapter reset.
1095 *
1096 * Returns:
1097 *      Either SUCCESS or FAILED.
1098 *
1099 * Note:
1100 **************************************************************************/
1101 static int
1102 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
1103 {
1104         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1105         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1106         struct qla_hw_data *ha = vha->hw;
1107         int ret = FAILED;
1108         unsigned int id, lun;
1109         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1110
1111         fc_block_scsi_eh(cmd);
1112
1113         id = cmd->device->id;
1114         lun = cmd->device->lun;
1115
1116         if (!fcport)
1117                 return ret;
1118
1119         qla_printk(KERN_INFO, ha,
1120             "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", vha->host_no, id, lun);
1121
1122         if (qla2x00_wait_for_reset_ready(vha) != QLA_SUCCESS)
1123                 goto eh_host_reset_lock;
1124
1125         /*
1126          * Fixme-may be dpc thread is active and processing
1127          * loop_resync,so wait a while for it to
1128          * be completed and then issue big hammer.Otherwise
1129          * it may cause I/O failure as big hammer marks the
1130          * devices as lost kicking of the port_down_timer
1131          * while dpc is stuck for the mailbox to complete.
1132          */
1133         qla2x00_wait_for_loop_ready(vha);
1134         if (vha != base_vha) {
1135                 if (qla2x00_vp_abort_isp(vha))
1136                         goto eh_host_reset_lock;
1137         } else {
1138                 if (IS_QLA82XX(vha->hw)) {
1139                         if (!qla82xx_fcoe_ctx_reset(vha)) {
1140                                 /* Ctx reset success */
1141                                 ret = SUCCESS;
1142                                 goto eh_host_reset_lock;
1143                         }
1144                         /* fall thru if ctx reset failed */
1145                 }
1146                 if (ha->wq)
1147                         flush_workqueue(ha->wq);
1148
1149                 set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1150                 if (ha->isp_ops->abort_isp(base_vha)) {
1151                         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1152                         /* failed. schedule dpc to try */
1153                         set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags);
1154
1155                         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
1156                                 goto eh_host_reset_lock;
1157                 }
1158                 clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1159         }
1160
1161         /* Waiting for command to be returned to OS.*/
1162         if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST) ==
1163                 QLA_SUCCESS)
1164                 ret = SUCCESS;
1165
1166 eh_host_reset_lock:
1167         qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
1168             (ret == FAILED) ? "failed" : "succeded");
1169
1170         return ret;
1171 }
1172
1173 /*
1174 * qla2x00_loop_reset
1175 *      Issue loop reset.
1176 *
1177 * Input:
1178 *      ha = adapter block pointer.
1179 *
1180 * Returns:
1181 *      0 = success
1182 */
1183 int
1184 qla2x00_loop_reset(scsi_qla_host_t *vha)
1185 {
1186         int ret;
1187         struct fc_port *fcport;
1188         struct qla_hw_data *ha = vha->hw;
1189
1190         if (ql2xtargetreset == 1 && ha->flags.enable_target_reset) {
1191                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
1192                         if (fcport->port_type != FCT_TARGET)
1193                                 continue;
1194
1195                         ret = ha->isp_ops->target_reset(fcport, 0, 0);
1196                         if (ret != QLA_SUCCESS) {
1197                                 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1198                                     "target_reset=%d d_id=%x.\n", __func__,
1199                                     vha->host_no, ret, fcport->d_id.b24));
1200                         }
1201                 }
1202         }
1203
1204         if (ha->flags.enable_lip_full_login && !IS_QLA8XXX_TYPE(ha)) {
1205                 ret = qla2x00_full_login_lip(vha);
1206                 if (ret != QLA_SUCCESS) {
1207                         DEBUG2_3(printk("%s(%ld): failed: "
1208                             "full_login_lip=%d.\n", __func__, vha->host_no,
1209                             ret));
1210                 }
1211                 atomic_set(&vha->loop_state, LOOP_DOWN);
1212                 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1213                 qla2x00_mark_all_devices_lost(vha, 0);
1214                 qla2x00_wait_for_loop_ready(vha);
1215         }
1216
1217         if (ha->flags.enable_lip_reset) {
1218                 ret = qla2x00_lip_reset(vha);
1219                 if (ret != QLA_SUCCESS) {
1220                         DEBUG2_3(printk("%s(%ld): failed: "
1221                             "lip_reset=%d.\n", __func__, vha->host_no, ret));
1222                 } else
1223                         qla2x00_wait_for_loop_ready(vha);
1224         }
1225
1226         /* Issue marker command only when we are going to start the I/O */
1227         vha->marker_needed = 1;
1228
1229         return QLA_SUCCESS;
1230 }
1231
1232 void
1233 qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res)
1234 {
1235         int que, cnt;
1236         unsigned long flags;
1237         srb_t *sp;
1238         struct srb_ctx *ctx;
1239         struct qla_hw_data *ha = vha->hw;
1240         struct req_que *req;
1241
1242         spin_lock_irqsave(&ha->hardware_lock, flags);
1243         for (que = 0; que < ha->max_req_queues; que++) {
1244                 req = ha->req_q_map[que];
1245                 if (!req)
1246                         continue;
1247                 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
1248                         sp = req->outstanding_cmds[cnt];
1249                         if (sp) {
1250                                 req->outstanding_cmds[cnt] = NULL;
1251                                 if (!sp->ctx ||
1252                                         (sp->flags & SRB_FCP_CMND_DMA_VALID) ||
1253                                         IS_PROT_IO(sp)) {
1254                                         sp->cmd->result = res;
1255                                         qla2x00_sp_compl(ha, sp);
1256                                 } else {
1257                                         ctx = sp->ctx;
1258                                         if (ctx->type == SRB_LOGIN_CMD ||
1259                                             ctx->type == SRB_LOGOUT_CMD) {
1260                                                 ctx->u.iocb_cmd->free(sp);
1261                                         } else {
1262                                                 struct fc_bsg_job *bsg_job =
1263                                                     ctx->u.bsg_job;
1264                                                 if (bsg_job->request->msgcode
1265                                                     == FC_BSG_HST_CT)
1266                                                         kfree(sp->fcport);
1267                                                 bsg_job->req->errors = 0;
1268                                                 bsg_job->reply->result = res;
1269                                                 bsg_job->job_done(bsg_job);
1270                                                 kfree(sp->ctx);
1271                                                 mempool_free(sp,
1272                                                         ha->srb_mempool);
1273                                         }
1274                                 }
1275                         }
1276                 }
1277         }
1278         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1279 }
1280
1281 static int
1282 qla2xxx_slave_alloc(struct scsi_device *sdev)
1283 {
1284         struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1285
1286         if (!rport || fc_remote_port_chkready(rport))
1287                 return -ENXIO;
1288
1289         sdev->hostdata = *(fc_port_t **)rport->dd_data;
1290
1291         return 0;
1292 }
1293
1294 static int
1295 qla2xxx_slave_configure(struct scsi_device *sdev)
1296 {
1297         scsi_qla_host_t *vha = shost_priv(sdev->host);
1298         struct req_que *req = vha->req;
1299
1300         if (sdev->tagged_supported)
1301                 scsi_activate_tcq(sdev, req->max_q_depth);
1302         else
1303                 scsi_deactivate_tcq(sdev, req->max_q_depth);
1304         return 0;
1305 }
1306
1307 static void
1308 qla2xxx_slave_destroy(struct scsi_device *sdev)
1309 {
1310         sdev->hostdata = NULL;
1311 }
1312
1313 static void qla2x00_handle_queue_full(struct scsi_device *sdev, int qdepth)
1314 {
1315         fc_port_t *fcport = (struct fc_port *) sdev->hostdata;
1316
1317         if (!scsi_track_queue_full(sdev, qdepth))
1318                 return;
1319
1320         DEBUG2(qla_printk(KERN_INFO, fcport->vha->hw,
1321                 "scsi(%ld:%d:%d:%d): Queue depth adjusted-down to %d.\n",
1322                 fcport->vha->host_no, sdev->channel, sdev->id, sdev->lun,
1323                 sdev->queue_depth));
1324 }
1325
1326 static void qla2x00_adjust_sdev_qdepth_up(struct scsi_device *sdev, int qdepth)
1327 {
1328         fc_port_t *fcport = sdev->hostdata;
1329         struct scsi_qla_host *vha = fcport->vha;
1330         struct qla_hw_data *ha = vha->hw;
1331         struct req_que *req = NULL;
1332
1333         req = vha->req;
1334         if (!req)
1335                 return;
1336
1337         if (req->max_q_depth <= sdev->queue_depth || req->max_q_depth < qdepth)
1338                 return;
1339
1340         if (sdev->ordered_tags)
1341                 scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, qdepth);
1342         else
1343                 scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, qdepth);
1344
1345         DEBUG2(qla_printk(KERN_INFO, ha,
1346                "scsi(%ld:%d:%d:%d): Queue depth adjusted-up to %d.\n",
1347                fcport->vha->host_no, sdev->channel, sdev->id, sdev->lun,
1348                sdev->queue_depth));
1349 }
1350
1351 static int
1352 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
1353 {
1354         switch (reason) {
1355         case SCSI_QDEPTH_DEFAULT:
1356                 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1357                 break;
1358         case SCSI_QDEPTH_QFULL:
1359                 qla2x00_handle_queue_full(sdev, qdepth);
1360                 break;
1361         case SCSI_QDEPTH_RAMP_UP:
1362                 qla2x00_adjust_sdev_qdepth_up(sdev, qdepth);
1363                 break;
1364         default:
1365                 return -EOPNOTSUPP;
1366         }
1367
1368         return sdev->queue_depth;
1369 }
1370
1371 static int
1372 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1373 {
1374         if (sdev->tagged_supported) {
1375                 scsi_set_tag_type(sdev, tag_type);
1376                 if (tag_type)
1377                         scsi_activate_tcq(sdev, sdev->queue_depth);
1378                 else
1379                         scsi_deactivate_tcq(sdev, sdev->queue_depth);
1380         } else
1381                 tag_type = 0;
1382
1383         return tag_type;
1384 }
1385
1386 /**
1387  * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1388  * @ha: HA context
1389  *
1390  * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1391  * supported addressing method.
1392  */
1393 static void
1394 qla2x00_config_dma_addressing(struct qla_hw_data *ha)
1395 {
1396         /* Assume a 32bit DMA mask. */
1397         ha->flags.enable_64bit_addressing = 0;
1398
1399         if (!dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(64))) {
1400                 /* Any upper-dword bits set? */
1401                 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1402                     !pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
1403                         /* Ok, a 64bit DMA mask is applicable. */
1404                         ha->flags.enable_64bit_addressing = 1;
1405                         ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1406                         ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1407                         return;
1408                 }
1409         }
1410
1411         dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(32));
1412         pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(32));
1413 }
1414
1415 static void
1416 qla2x00_enable_intrs(struct qla_hw_data *ha)
1417 {
1418         unsigned long flags = 0;
1419         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1420
1421         spin_lock_irqsave(&ha->hardware_lock, flags);
1422         ha->interrupts_on = 1;
1423         /* enable risc and host interrupts */
1424         WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1425         RD_REG_WORD(&reg->ictrl);
1426         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1427
1428 }
1429
1430 static void
1431 qla2x00_disable_intrs(struct qla_hw_data *ha)
1432 {
1433         unsigned long flags = 0;
1434         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1435
1436         spin_lock_irqsave(&ha->hardware_lock, flags);
1437         ha->interrupts_on = 0;
1438         /* disable risc and host interrupts */
1439         WRT_REG_WORD(&reg->ictrl, 0);
1440         RD_REG_WORD(&reg->ictrl);
1441         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1442 }
1443
1444 static void
1445 qla24xx_enable_intrs(struct qla_hw_data *ha)
1446 {
1447         unsigned long flags = 0;
1448         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1449
1450         spin_lock_irqsave(&ha->hardware_lock, flags);
1451         ha->interrupts_on = 1;
1452         WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1453         RD_REG_DWORD(&reg->ictrl);
1454         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1455 }
1456
1457 static void
1458 qla24xx_disable_intrs(struct qla_hw_data *ha)
1459 {
1460         unsigned long flags = 0;
1461         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1462
1463         if (IS_NOPOLLING_TYPE(ha))
1464                 return;
1465         spin_lock_irqsave(&ha->hardware_lock, flags);
1466         ha->interrupts_on = 0;
1467         WRT_REG_DWORD(&reg->ictrl, 0);
1468         RD_REG_DWORD(&reg->ictrl);
1469         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1470 }
1471
1472 static struct isp_operations qla2100_isp_ops = {
1473         .pci_config             = qla2100_pci_config,
1474         .reset_chip             = qla2x00_reset_chip,
1475         .chip_diag              = qla2x00_chip_diag,
1476         .config_rings           = qla2x00_config_rings,
1477         .reset_adapter          = qla2x00_reset_adapter,
1478         .nvram_config           = qla2x00_nvram_config,
1479         .update_fw_options      = qla2x00_update_fw_options,
1480         .load_risc              = qla2x00_load_risc,
1481         .pci_info_str           = qla2x00_pci_info_str,
1482         .fw_version_str         = qla2x00_fw_version_str,
1483         .intr_handler           = qla2100_intr_handler,
1484         .enable_intrs           = qla2x00_enable_intrs,
1485         .disable_intrs          = qla2x00_disable_intrs,
1486         .abort_command          = qla2x00_abort_command,
1487         .target_reset           = qla2x00_abort_target,
1488         .lun_reset              = qla2x00_lun_reset,
1489         .fabric_login           = qla2x00_login_fabric,
1490         .fabric_logout          = qla2x00_fabric_logout,
1491         .calc_req_entries       = qla2x00_calc_iocbs_32,
1492         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1493         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1494         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1495         .read_nvram             = qla2x00_read_nvram_data,
1496         .write_nvram            = qla2x00_write_nvram_data,
1497         .fw_dump                = qla2100_fw_dump,
1498         .beacon_on              = NULL,
1499         .beacon_off             = NULL,
1500         .beacon_blink           = NULL,
1501         .read_optrom            = qla2x00_read_optrom_data,
1502         .write_optrom           = qla2x00_write_optrom_data,
1503         .get_flash_version      = qla2x00_get_flash_version,
1504         .start_scsi             = qla2x00_start_scsi,
1505         .abort_isp              = qla2x00_abort_isp,
1506 };
1507
1508 static struct isp_operations qla2300_isp_ops = {
1509         .pci_config             = qla2300_pci_config,
1510         .reset_chip             = qla2x00_reset_chip,
1511         .chip_diag              = qla2x00_chip_diag,
1512         .config_rings           = qla2x00_config_rings,
1513         .reset_adapter          = qla2x00_reset_adapter,
1514         .nvram_config           = qla2x00_nvram_config,
1515         .update_fw_options      = qla2x00_update_fw_options,
1516         .load_risc              = qla2x00_load_risc,
1517         .pci_info_str           = qla2x00_pci_info_str,
1518         .fw_version_str         = qla2x00_fw_version_str,
1519         .intr_handler           = qla2300_intr_handler,
1520         .enable_intrs           = qla2x00_enable_intrs,
1521         .disable_intrs          = qla2x00_disable_intrs,
1522         .abort_command          = qla2x00_abort_command,
1523         .target_reset           = qla2x00_abort_target,
1524         .lun_reset              = qla2x00_lun_reset,
1525         .fabric_login           = qla2x00_login_fabric,
1526         .fabric_logout          = qla2x00_fabric_logout,
1527         .calc_req_entries       = qla2x00_calc_iocbs_32,
1528         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1529         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1530         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1531         .read_nvram             = qla2x00_read_nvram_data,
1532         .write_nvram            = qla2x00_write_nvram_data,
1533         .fw_dump                = qla2300_fw_dump,
1534         .beacon_on              = qla2x00_beacon_on,
1535         .beacon_off             = qla2x00_beacon_off,
1536         .beacon_blink           = qla2x00_beacon_blink,
1537         .read_optrom            = qla2x00_read_optrom_data,
1538         .write_optrom           = qla2x00_write_optrom_data,
1539         .get_flash_version      = qla2x00_get_flash_version,
1540         .start_scsi             = qla2x00_start_scsi,
1541         .abort_isp              = qla2x00_abort_isp,
1542 };
1543
1544 static struct isp_operations qla24xx_isp_ops = {
1545         .pci_config             = qla24xx_pci_config,
1546         .reset_chip             = qla24xx_reset_chip,
1547         .chip_diag              = qla24xx_chip_diag,
1548         .config_rings           = qla24xx_config_rings,
1549         .reset_adapter          = qla24xx_reset_adapter,
1550         .nvram_config           = qla24xx_nvram_config,
1551         .update_fw_options      = qla24xx_update_fw_options,
1552         .load_risc              = qla24xx_load_risc,
1553         .pci_info_str           = qla24xx_pci_info_str,
1554         .fw_version_str         = qla24xx_fw_version_str,
1555         .intr_handler           = qla24xx_intr_handler,
1556         .enable_intrs           = qla24xx_enable_intrs,
1557         .disable_intrs          = qla24xx_disable_intrs,
1558         .abort_command          = qla24xx_abort_command,
1559         .target_reset           = qla24xx_abort_target,
1560         .lun_reset              = qla24xx_lun_reset,
1561         .fabric_login           = qla24xx_login_fabric,
1562         .fabric_logout          = qla24xx_fabric_logout,
1563         .calc_req_entries       = NULL,
1564         .build_iocbs            = NULL,
1565         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1566         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1567         .read_nvram             = qla24xx_read_nvram_data,
1568         .write_nvram            = qla24xx_write_nvram_data,
1569         .fw_dump                = qla24xx_fw_dump,
1570         .beacon_on              = qla24xx_beacon_on,
1571         .beacon_off             = qla24xx_beacon_off,
1572         .beacon_blink           = qla24xx_beacon_blink,
1573         .read_optrom            = qla24xx_read_optrom_data,
1574         .write_optrom           = qla24xx_write_optrom_data,
1575         .get_flash_version      = qla24xx_get_flash_version,
1576         .start_scsi             = qla24xx_start_scsi,
1577         .abort_isp              = qla2x00_abort_isp,
1578 };
1579
1580 static struct isp_operations qla25xx_isp_ops = {
1581         .pci_config             = qla25xx_pci_config,
1582         .reset_chip             = qla24xx_reset_chip,
1583         .chip_diag              = qla24xx_chip_diag,
1584         .config_rings           = qla24xx_config_rings,
1585         .reset_adapter          = qla24xx_reset_adapter,
1586         .nvram_config           = qla24xx_nvram_config,
1587         .update_fw_options      = qla24xx_update_fw_options,
1588         .load_risc              = qla24xx_load_risc,
1589         .pci_info_str           = qla24xx_pci_info_str,
1590         .fw_version_str         = qla24xx_fw_version_str,
1591         .intr_handler           = qla24xx_intr_handler,
1592         .enable_intrs           = qla24xx_enable_intrs,
1593         .disable_intrs          = qla24xx_disable_intrs,
1594         .abort_command          = qla24xx_abort_command,
1595         .target_reset           = qla24xx_abort_target,
1596         .lun_reset              = qla24xx_lun_reset,
1597         .fabric_login           = qla24xx_login_fabric,
1598         .fabric_logout          = qla24xx_fabric_logout,
1599         .calc_req_entries       = NULL,
1600         .build_iocbs            = NULL,
1601         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1602         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1603         .read_nvram             = qla25xx_read_nvram_data,
1604         .write_nvram            = qla25xx_write_nvram_data,
1605         .fw_dump                = qla25xx_fw_dump,
1606         .beacon_on              = qla24xx_beacon_on,
1607         .beacon_off             = qla24xx_beacon_off,
1608         .beacon_blink           = qla24xx_beacon_blink,
1609         .read_optrom            = qla25xx_read_optrom_data,
1610         .write_optrom           = qla24xx_write_optrom_data,
1611         .get_flash_version      = qla24xx_get_flash_version,
1612         .start_scsi             = qla24xx_dif_start_scsi,
1613         .abort_isp              = qla2x00_abort_isp,
1614 };
1615
1616 static struct isp_operations qla81xx_isp_ops = {
1617         .pci_config             = qla25xx_pci_config,
1618         .reset_chip             = qla24xx_reset_chip,
1619         .chip_diag              = qla24xx_chip_diag,
1620         .config_rings           = qla24xx_config_rings,
1621         .reset_adapter          = qla24xx_reset_adapter,
1622         .nvram_config           = qla81xx_nvram_config,
1623         .update_fw_options      = qla81xx_update_fw_options,
1624         .load_risc              = qla81xx_load_risc,
1625         .pci_info_str           = qla24xx_pci_info_str,
1626         .fw_version_str         = qla24xx_fw_version_str,
1627         .intr_handler           = qla24xx_intr_handler,
1628         .enable_intrs           = qla24xx_enable_intrs,
1629         .disable_intrs          = qla24xx_disable_intrs,
1630         .abort_command          = qla24xx_abort_command,
1631         .target_reset           = qla24xx_abort_target,
1632         .lun_reset              = qla24xx_lun_reset,
1633         .fabric_login           = qla24xx_login_fabric,
1634         .fabric_logout          = qla24xx_fabric_logout,
1635         .calc_req_entries       = NULL,
1636         .build_iocbs            = NULL,
1637         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1638         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1639         .read_nvram             = NULL,
1640         .write_nvram            = NULL,
1641         .fw_dump                = qla81xx_fw_dump,
1642         .beacon_on              = qla24xx_beacon_on,
1643         .beacon_off             = qla24xx_beacon_off,
1644         .beacon_blink           = qla24xx_beacon_blink,
1645         .read_optrom            = qla25xx_read_optrom_data,
1646         .write_optrom           = qla24xx_write_optrom_data,
1647         .get_flash_version      = qla24xx_get_flash_version,
1648         .start_scsi             = qla24xx_dif_start_scsi,
1649         .abort_isp              = qla2x00_abort_isp,
1650 };
1651
1652 static struct isp_operations qla82xx_isp_ops = {
1653         .pci_config             = qla82xx_pci_config,
1654         .reset_chip             = qla82xx_reset_chip,
1655         .chip_diag              = qla24xx_chip_diag,
1656         .config_rings           = qla82xx_config_rings,
1657         .reset_adapter          = qla24xx_reset_adapter,
1658         .nvram_config           = qla81xx_nvram_config,
1659         .update_fw_options      = qla24xx_update_fw_options,
1660         .load_risc              = qla82xx_load_risc,
1661         .pci_info_str           = qla82xx_pci_info_str,
1662         .fw_version_str         = qla24xx_fw_version_str,
1663         .intr_handler           = qla82xx_intr_handler,
1664         .enable_intrs           = qla82xx_enable_intrs,
1665         .disable_intrs          = qla82xx_disable_intrs,
1666         .abort_command          = qla24xx_abort_command,
1667         .target_reset           = qla24xx_abort_target,
1668         .lun_reset              = qla24xx_lun_reset,
1669         .fabric_login           = qla24xx_login_fabric,
1670         .fabric_logout          = qla24xx_fabric_logout,
1671         .calc_req_entries       = NULL,
1672         .build_iocbs            = NULL,
1673         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1674         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1675         .read_nvram             = qla24xx_read_nvram_data,
1676         .write_nvram            = qla24xx_write_nvram_data,
1677         .fw_dump                = qla24xx_fw_dump,
1678         .beacon_on              = qla24xx_beacon_on,
1679         .beacon_off             = qla24xx_beacon_off,
1680         .beacon_blink           = qla24xx_beacon_blink,
1681         .read_optrom            = qla82xx_read_optrom_data,
1682         .write_optrom           = qla82xx_write_optrom_data,
1683         .get_flash_version      = qla24xx_get_flash_version,
1684         .start_scsi             = qla82xx_start_scsi,
1685         .abort_isp              = qla82xx_abort_isp,
1686 };
1687
1688 static inline void
1689 qla2x00_set_isp_flags(struct qla_hw_data *ha)
1690 {
1691         ha->device_type = DT_EXTENDED_IDS;
1692         switch (ha->pdev->device) {
1693         case PCI_DEVICE_ID_QLOGIC_ISP2100:
1694                 ha->device_type |= DT_ISP2100;
1695                 ha->device_type &= ~DT_EXTENDED_IDS;
1696                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1697                 break;
1698         case PCI_DEVICE_ID_QLOGIC_ISP2200:
1699                 ha->device_type |= DT_ISP2200;
1700                 ha->device_type &= ~DT_EXTENDED_IDS;
1701                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1702                 break;
1703         case PCI_DEVICE_ID_QLOGIC_ISP2300:
1704                 ha->device_type |= DT_ISP2300;
1705                 ha->device_type |= DT_ZIO_SUPPORTED;
1706                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1707                 break;
1708         case PCI_DEVICE_ID_QLOGIC_ISP2312:
1709                 ha->device_type |= DT_ISP2312;
1710                 ha->device_type |= DT_ZIO_SUPPORTED;
1711                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1712                 break;
1713         case PCI_DEVICE_ID_QLOGIC_ISP2322:
1714                 ha->device_type |= DT_ISP2322;
1715                 ha->device_type |= DT_ZIO_SUPPORTED;
1716                 if (ha->pdev->subsystem_vendor == 0x1028 &&
1717                     ha->pdev->subsystem_device == 0x0170)
1718                         ha->device_type |= DT_OEM_001;
1719                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1720                 break;
1721         case PCI_DEVICE_ID_QLOGIC_ISP6312:
1722                 ha->device_type |= DT_ISP6312;
1723                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1724                 break;
1725         case PCI_DEVICE_ID_QLOGIC_ISP6322:
1726                 ha->device_type |= DT_ISP6322;
1727                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1728                 break;
1729         case PCI_DEVICE_ID_QLOGIC_ISP2422:
1730                 ha->device_type |= DT_ISP2422;
1731                 ha->device_type |= DT_ZIO_SUPPORTED;
1732                 ha->device_type |= DT_FWI2;
1733                 ha->device_type |= DT_IIDMA;
1734                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1735                 break;
1736         case PCI_DEVICE_ID_QLOGIC_ISP2432:
1737                 ha->device_type |= DT_ISP2432;
1738                 ha->device_type |= DT_ZIO_SUPPORTED;
1739                 ha->device_type |= DT_FWI2;
1740                 ha->device_type |= DT_IIDMA;
1741                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1742                 break;
1743         case PCI_DEVICE_ID_QLOGIC_ISP8432:
1744                 ha->device_type |= DT_ISP8432;
1745                 ha->device_type |= DT_ZIO_SUPPORTED;
1746                 ha->device_type |= DT_FWI2;
1747                 ha->device_type |= DT_IIDMA;
1748                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1749                 break;
1750         case PCI_DEVICE_ID_QLOGIC_ISP5422:
1751                 ha->device_type |= DT_ISP5422;
1752                 ha->device_type |= DT_FWI2;
1753                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1754                 break;
1755         case PCI_DEVICE_ID_QLOGIC_ISP5432:
1756                 ha->device_type |= DT_ISP5432;
1757                 ha->device_type |= DT_FWI2;
1758                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1759                 break;
1760         case PCI_DEVICE_ID_QLOGIC_ISP2532:
1761                 ha->device_type |= DT_ISP2532;
1762                 ha->device_type |= DT_ZIO_SUPPORTED;
1763                 ha->device_type |= DT_FWI2;
1764                 ha->device_type |= DT_IIDMA;
1765                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1766                 break;
1767         case PCI_DEVICE_ID_QLOGIC_ISP8001:
1768                 ha->device_type |= DT_ISP8001;
1769                 ha->device_type |= DT_ZIO_SUPPORTED;
1770                 ha->device_type |= DT_FWI2;
1771                 ha->device_type |= DT_IIDMA;
1772                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1773                 break;
1774         case PCI_DEVICE_ID_QLOGIC_ISP8021:
1775                 ha->device_type |= DT_ISP8021;
1776                 ha->device_type |= DT_ZIO_SUPPORTED;
1777                 ha->device_type |= DT_FWI2;
1778                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1779                 /* Initialize 82XX ISP flags */
1780                 qla82xx_init_flags(ha);
1781                 break;
1782         }
1783
1784         if (IS_QLA82XX(ha))
1785                 ha->port_no = !(ha->portnum & 1);
1786         else
1787                 /* Get adapter physical port no from interrupt pin register. */
1788                 pci_read_config_byte(ha->pdev, PCI_INTERRUPT_PIN, &ha->port_no);
1789
1790         if (ha->port_no & 1)
1791                 ha->flags.port0 = 1;
1792         else
1793                 ha->flags.port0 = 0;
1794 }
1795
1796 static int
1797 qla2x00_iospace_config(struct qla_hw_data *ha)
1798 {
1799         resource_size_t pio;
1800         uint16_t msix;
1801         int cpus;
1802
1803         if (IS_QLA82XX(ha))
1804                 return qla82xx_iospace_config(ha);
1805
1806         if (pci_request_selected_regions(ha->pdev, ha->bars,
1807             QLA2XXX_DRIVER_NAME)) {
1808                 qla_printk(KERN_WARNING, ha,
1809                     "Failed to reserve PIO/MMIO regions (%s)\n",
1810                     pci_name(ha->pdev));
1811
1812                 goto iospace_error_exit;
1813         }
1814         if (!(ha->bars & 1))
1815                 goto skip_pio;
1816
1817         /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1818         pio = pci_resource_start(ha->pdev, 0);
1819         if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
1820                 if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1821                         qla_printk(KERN_WARNING, ha,
1822                             "Invalid PCI I/O region size (%s)...\n",
1823                                 pci_name(ha->pdev));
1824                         pio = 0;
1825                 }
1826         } else {
1827                 qla_printk(KERN_WARNING, ha,
1828                     "region #0 not a PIO resource (%s)...\n",
1829                     pci_name(ha->pdev));
1830                 pio = 0;
1831         }
1832         ha->pio_address = pio;
1833
1834 skip_pio:
1835         /* Use MMIO operations for all accesses. */
1836         if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
1837                 qla_printk(KERN_ERR, ha,
1838                     "region #1 not an MMIO resource (%s), aborting\n",
1839                     pci_name(ha->pdev));
1840                 goto iospace_error_exit;
1841         }
1842         if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
1843                 qla_printk(KERN_ERR, ha,
1844                     "Invalid PCI mem region size (%s), aborting\n",
1845                         pci_name(ha->pdev));
1846                 goto iospace_error_exit;
1847         }
1848
1849         ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
1850         if (!ha->iobase) {
1851                 qla_printk(KERN_ERR, ha,
1852                     "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1853
1854                 goto iospace_error_exit;
1855         }
1856
1857         /* Determine queue resources */
1858         ha->max_req_queues = ha->max_rsp_queues = 1;
1859         if ((ql2xmaxqueues <= 1 && !ql2xmultique_tag) ||
1860                 (ql2xmaxqueues > 1 && ql2xmultique_tag) ||
1861                 (!IS_QLA25XX(ha) && !IS_QLA81XX(ha)))
1862                 goto mqiobase_exit;
1863
1864         ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 3),
1865                         pci_resource_len(ha->pdev, 3));
1866         if (ha->mqiobase) {
1867                 /* Read MSIX vector size of the board */
1868                 pci_read_config_word(ha->pdev, QLA_PCI_MSIX_CONTROL, &msix);
1869                 ha->msix_count = msix;
1870                 /* Max queues are bounded by available msix vectors */
1871                 /* queue 0 uses two msix vectors */
1872                 if (ql2xmultique_tag) {
1873                         cpus = num_online_cpus();
1874                         ha->max_rsp_queues = (ha->msix_count - 1 > cpus) ?
1875                                 (cpus + 1) : (ha->msix_count - 1);
1876                         ha->max_req_queues = 2;
1877                 } else if (ql2xmaxqueues > 1) {
1878                         ha->max_req_queues = ql2xmaxqueues > QLA_MQ_SIZE ?
1879                                                 QLA_MQ_SIZE : ql2xmaxqueues;
1880                         DEBUG2(qla_printk(KERN_INFO, ha, "QoS mode set, max no"
1881                         " of request queues:%d\n", ha->max_req_queues));
1882                 }
1883                 qla_printk(KERN_INFO, ha,
1884                         "MSI-X vector count: %d\n", msix);
1885         } else
1886                 qla_printk(KERN_INFO, ha, "BAR 3 not enabled\n");
1887
1888 mqiobase_exit:
1889         ha->msix_count = ha->max_rsp_queues + 1;
1890         return (0);
1891
1892 iospace_error_exit:
1893         return (-ENOMEM);
1894 }
1895
1896 static void
1897 qla2xxx_scan_start(struct Scsi_Host *shost)
1898 {
1899         scsi_qla_host_t *vha = shost_priv(shost);
1900
1901         if (vha->hw->flags.running_gold_fw)
1902                 return;
1903
1904         set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1905         set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1906         set_bit(RSCN_UPDATE, &vha->dpc_flags);
1907         set_bit(NPIV_CONFIG_NEEDED, &vha->dpc_flags);
1908 }
1909
1910 static int
1911 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1912 {
1913         scsi_qla_host_t *vha = shost_priv(shost);
1914
1915         if (!vha->host)
1916                 return 1;
1917         if (time > vha->hw->loop_reset_delay * HZ)
1918                 return 1;
1919
1920         return atomic_read(&vha->loop_state) == LOOP_READY;
1921 }
1922
1923 /*
1924  * PCI driver interface
1925  */
1926 static int __devinit
1927 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1928 {
1929         int     ret = -ENODEV;
1930         struct Scsi_Host *host;
1931         scsi_qla_host_t *base_vha = NULL;
1932         struct qla_hw_data *ha;
1933         char pci_info[30];
1934         char fw_str[30];
1935         struct scsi_host_template *sht;
1936         int bars, max_id, mem_only = 0;
1937         uint16_t req_length = 0, rsp_length = 0;
1938         struct req_que *req = NULL;
1939         struct rsp_que *rsp = NULL;
1940
1941         bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
1942         sht = &qla2xxx_driver_template;
1943         if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1944             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1945             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8432 ||
1946             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1947             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
1948             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532 ||
1949             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8001 ||
1950             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8021) {
1951                 bars = pci_select_bars(pdev, IORESOURCE_MEM);
1952                 mem_only = 1;
1953         }
1954
1955         if (mem_only) {
1956                 if (pci_enable_device_mem(pdev))
1957                         goto probe_out;
1958         } else {
1959                 if (pci_enable_device(pdev))
1960                         goto probe_out;
1961         }
1962
1963         /* This may fail but that's ok */
1964         pci_enable_pcie_error_reporting(pdev);
1965
1966         ha = kzalloc(sizeof(struct qla_hw_data), GFP_KERNEL);
1967         if (!ha) {
1968                 DEBUG(printk("Unable to allocate memory for ha\n"));
1969                 goto probe_out;
1970         }
1971         ha->pdev = pdev;
1972
1973         /* Clear our data area */
1974         ha->bars = bars;
1975         ha->mem_only = mem_only;
1976         spin_lock_init(&ha->hardware_lock);
1977         spin_lock_init(&ha->vport_slock);
1978
1979         /* Set ISP-type information. */
1980         qla2x00_set_isp_flags(ha);
1981
1982         /* Set EEH reset type to fundamental if required by hba */
1983         if ( IS_QLA24XX(ha) || IS_QLA25XX(ha) || IS_QLA81XX(ha)) {
1984                 pdev->needs_freset = 1;
1985         }
1986
1987         /* Configure PCI I/O space */
1988         ret = qla2x00_iospace_config(ha);
1989         if (ret)
1990                 goto probe_hw_failed;
1991
1992         qla_printk(KERN_INFO, ha,
1993             "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1994             ha->iobase);
1995
1996         ha->prev_topology = 0;
1997         ha->init_cb_size = sizeof(init_cb_t);
1998         ha->link_data_rate = PORT_SPEED_UNKNOWN;
1999         ha->optrom_size = OPTROM_SIZE_2300;
2000
2001         /* Assign ISP specific operations. */
2002         max_id = MAX_TARGETS_2200;
2003         if (IS_QLA2100(ha)) {
2004                 max_id = MAX_TARGETS_2100;
2005                 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
2006                 req_length = REQUEST_ENTRY_CNT_2100;
2007                 rsp_length = RESPONSE_ENTRY_CNT_2100;
2008                 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
2009                 ha->gid_list_info_size = 4;
2010                 ha->flash_conf_off = ~0;
2011                 ha->flash_data_off = ~0;
2012                 ha->nvram_conf_off = ~0;
2013                 ha->nvram_data_off = ~0;
2014                 ha->isp_ops = &qla2100_isp_ops;
2015         } else if (IS_QLA2200(ha)) {
2016                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2017                 req_length = REQUEST_ENTRY_CNT_2200;
2018                 rsp_length = RESPONSE_ENTRY_CNT_2100;
2019                 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
2020                 ha->gid_list_info_size = 4;
2021                 ha->flash_conf_off = ~0;
2022                 ha->flash_data_off = ~0;
2023                 ha->nvram_conf_off = ~0;
2024                 ha->nvram_data_off = ~0;
2025                 ha->isp_ops = &qla2100_isp_ops;
2026         } else if (IS_QLA23XX(ha)) {
2027                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2028                 req_length = REQUEST_ENTRY_CNT_2200;
2029                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2030                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2031                 ha->gid_list_info_size = 6;
2032                 if (IS_QLA2322(ha) || IS_QLA6322(ha))
2033                         ha->optrom_size = OPTROM_SIZE_2322;
2034                 ha->flash_conf_off = ~0;
2035                 ha->flash_data_off = ~0;
2036                 ha->nvram_conf_off = ~0;
2037                 ha->nvram_data_off = ~0;
2038                 ha->isp_ops = &qla2300_isp_ops;
2039         } else if (IS_QLA24XX_TYPE(ha)) {
2040                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2041                 req_length = REQUEST_ENTRY_CNT_24XX;
2042                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2043                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2044                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
2045                 ha->gid_list_info_size = 8;
2046                 ha->optrom_size = OPTROM_SIZE_24XX;
2047                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA24XX;
2048                 ha->isp_ops = &qla24xx_isp_ops;
2049                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2050                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2051                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2052                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2053         } else if (IS_QLA25XX(ha)) {
2054                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2055                 req_length = REQUEST_ENTRY_CNT_24XX;
2056                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2057                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2058                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
2059                 ha->gid_list_info_size = 8;
2060                 ha->optrom_size = OPTROM_SIZE_25XX;
2061                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2062                 ha->isp_ops = &qla25xx_isp_ops;
2063                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2064                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2065                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2066                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2067         } else if (IS_QLA81XX(ha)) {
2068                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2069                 req_length = REQUEST_ENTRY_CNT_24XX;
2070                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2071                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2072                 ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2073                 ha->gid_list_info_size = 8;
2074                 ha->optrom_size = OPTROM_SIZE_81XX;
2075                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2076                 ha->isp_ops = &qla81xx_isp_ops;
2077                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
2078                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
2079                 ha->nvram_conf_off = ~0;
2080                 ha->nvram_data_off = ~0;
2081         } else if (IS_QLA82XX(ha)) {
2082                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2083                 req_length = REQUEST_ENTRY_CNT_82XX;
2084                 rsp_length = RESPONSE_ENTRY_CNT_82XX;
2085                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2086                 ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2087                 ha->gid_list_info_size = 8;
2088                 ha->optrom_size = OPTROM_SIZE_82XX;
2089                 ha->isp_ops = &qla82xx_isp_ops;
2090                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2091                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2092                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2093                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2094         }
2095
2096         mutex_init(&ha->vport_lock);
2097         init_completion(&ha->mbx_cmd_comp);
2098         complete(&ha->mbx_cmd_comp);
2099         init_completion(&ha->mbx_intr_comp);
2100         init_completion(&ha->dcbx_comp);
2101
2102         set_bit(0, (unsigned long *) ha->vp_idx_map);
2103
2104         qla2x00_config_dma_addressing(ha);
2105         ret = qla2x00_mem_alloc(ha, req_length, rsp_length, &req, &rsp);
2106         if (!ret) {
2107                 qla_printk(KERN_WARNING, ha,
2108                     "[ERROR] Failed to allocate memory for adapter\n");
2109
2110                 goto probe_hw_failed;
2111         }
2112
2113         req->max_q_depth = MAX_Q_DEPTH;
2114         if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
2115                 req->max_q_depth = ql2xmaxqdepth;
2116
2117
2118         base_vha = qla2x00_create_host(sht, ha);
2119         if (!base_vha) {
2120                 qla_printk(KERN_WARNING, ha,
2121                     "[ERROR] Failed to allocate memory for scsi_host\n");
2122
2123                 ret = -ENOMEM;
2124                 qla2x00_mem_free(ha);
2125                 qla2x00_free_req_que(ha, req);
2126                 qla2x00_free_rsp_que(ha, rsp);
2127                 goto probe_hw_failed;
2128         }
2129
2130         pci_set_drvdata(pdev, base_vha);
2131
2132         host = base_vha->host;
2133         base_vha->req = req;
2134         host->can_queue = req->length + 128;
2135         if (IS_QLA2XXX_MIDTYPE(ha))
2136                 base_vha->mgmt_svr_loop_id = 10 + base_vha->vp_idx;
2137         else
2138                 base_vha->mgmt_svr_loop_id = MANAGEMENT_SERVER +
2139                                                 base_vha->vp_idx;
2140
2141         /* Set the SG table size based on ISP type */
2142         if (!IS_FWI2_CAPABLE(ha)) {
2143                 if (IS_QLA2100(ha))
2144                         host->sg_tablesize = 32;
2145         } else {
2146                 if (!IS_QLA82XX(ha))
2147                         host->sg_tablesize = QLA_SG_ALL;
2148         }
2149
2150         host->max_id = max_id;
2151         host->this_id = 255;
2152         host->cmd_per_lun = 3;
2153         host->unique_id = host->host_no;
2154         if ((IS_QLA25XX(ha) || IS_QLA81XX(ha)) && ql2xenabledif)
2155                 host->max_cmd_len = 32;
2156         else
2157                 host->max_cmd_len = MAX_CMDSZ;
2158         host->max_channel = MAX_BUSES - 1;
2159         host->max_lun = MAX_LUNS;
2160         host->transportt = qla2xxx_transport_template;
2161         sht->vendor_id = (SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC);
2162
2163         /* Set up the irqs */
2164         ret = qla2x00_request_irqs(ha, rsp);
2165         if (ret)
2166                 goto probe_init_failed;
2167
2168         pci_save_state(pdev);
2169
2170         /* Alloc arrays of request and response ring ptrs */
2171 que_init:
2172         if (!qla2x00_alloc_queues(ha)) {
2173                 qla_printk(KERN_WARNING, ha,
2174                 "[ERROR] Failed to allocate memory for queue"
2175                 " pointers\n");
2176                 goto probe_init_failed;
2177         }
2178
2179         ha->rsp_q_map[0] = rsp;
2180         ha->req_q_map[0] = req;
2181         rsp->req = req;
2182         req->rsp = rsp;
2183         set_bit(0, ha->req_qid_map);
2184         set_bit(0, ha->rsp_qid_map);
2185         /* FWI2-capable only. */
2186         req->req_q_in = &ha->iobase->isp24.req_q_in;
2187         req->req_q_out = &ha->iobase->isp24.req_q_out;
2188         rsp->rsp_q_in = &ha->iobase->isp24.rsp_q_in;
2189         rsp->rsp_q_out = &ha->iobase->isp24.rsp_q_out;
2190         if (ha->mqenable) {
2191                 req->req_q_in = &ha->mqiobase->isp25mq.req_q_in;
2192                 req->req_q_out = &ha->mqiobase->isp25mq.req_q_out;
2193                 rsp->rsp_q_in = &ha->mqiobase->isp25mq.rsp_q_in;
2194                 rsp->rsp_q_out =  &ha->mqiobase->isp25mq.rsp_q_out;
2195         }
2196
2197         if (IS_QLA82XX(ha)) {
2198                 req->req_q_out = &ha->iobase->isp82.req_q_out[0];
2199                 rsp->rsp_q_in = &ha->iobase->isp82.rsp_q_in[0];
2200                 rsp->rsp_q_out = &ha->iobase->isp82.rsp_q_out[0];
2201         }
2202
2203         if (qla2x00_initialize_adapter(base_vha)) {
2204                 qla_printk(KERN_WARNING, ha,
2205                     "Failed to initialize adapter\n");
2206
2207                 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
2208                     "Adapter flags %x.\n",
2209                     base_vha->host_no, base_vha->device_flags));
2210
2211                 if (IS_QLA82XX(ha)) {
2212                         qla82xx_idc_lock(ha);
2213                         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
2214                                 QLA82XX_DEV_FAILED);
2215                         qla82xx_idc_unlock(ha);
2216                         qla_printk(KERN_INFO, ha, "HW State: FAILED\n");
2217                 }
2218
2219                 ret = -ENODEV;
2220                 goto probe_failed;
2221         }
2222
2223         if (ha->mqenable) {
2224                 if (qla25xx_setup_mode(base_vha)) {
2225                         qla_printk(KERN_WARNING, ha,
2226                                 "Can't create queues, falling back to single"
2227                                 " queue mode\n");
2228                         goto que_init;
2229                 }
2230         }
2231
2232         if (ha->flags.running_gold_fw)
2233                 goto skip_dpc;
2234
2235         /*
2236          * Startup the kernel thread for this host adapter
2237          */
2238         ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
2239                         "%s_dpc", base_vha->host_str);
2240         if (IS_ERR(ha->dpc_thread)) {
2241                 qla_printk(KERN_WARNING, ha,
2242                     "Unable to start DPC thread!\n");
2243                 ret = PTR_ERR(ha->dpc_thread);
2244                 goto probe_failed;
2245         }
2246
2247 skip_dpc:
2248         list_add_tail(&base_vha->list, &ha->vp_list);
2249         base_vha->host->irq = ha->pdev->irq;
2250
2251         /* Initialized the timer */
2252         qla2x00_start_timer(base_vha, qla2x00_timer, WATCH_INTERVAL);
2253
2254         DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
2255             base_vha->host_no, ha));
2256
2257         if ((IS_QLA25XX(ha) || IS_QLA81XX(ha)) && ql2xenabledif) {
2258                 if (ha->fw_attributes & BIT_4) {
2259                         base_vha->flags.difdix_supported = 1;
2260                         DEBUG18(qla_printk(KERN_INFO, ha,
2261                             "Registering for DIF/DIX type 1 and 3"
2262                             " protection.\n"));
2263                         scsi_host_set_prot(host,
2264                             SHOST_DIF_TYPE1_PROTECTION
2265                             | SHOST_DIF_TYPE2_PROTECTION
2266                             | SHOST_DIF_TYPE3_PROTECTION
2267                             | SHOST_DIX_TYPE1_PROTECTION
2268                             | SHOST_DIX_TYPE2_PROTECTION
2269                             | SHOST_DIX_TYPE3_PROTECTION);
2270                         scsi_host_set_guard(host, SHOST_DIX_GUARD_CRC);
2271                 } else
2272                         base_vha->flags.difdix_supported = 0;
2273         }
2274
2275         ha->isp_ops->enable_intrs(ha);
2276
2277         ret = scsi_add_host(host, &pdev->dev);
2278         if (ret)
2279                 goto probe_failed;
2280
2281         base_vha->flags.init_done = 1;
2282         base_vha->flags.online = 1;
2283
2284         scsi_scan_host(host);
2285
2286         qla2x00_alloc_sysfs_attr(base_vha);
2287
2288         qla2x00_init_host_attr(base_vha);
2289
2290         qla2x00_dfs_setup(base_vha);
2291
2292         qla_printk(KERN_INFO, ha, "\n"
2293             " QLogic Fibre Channel HBA Driver: %s\n"
2294             "  QLogic %s - %s\n"
2295             "  ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
2296             qla2x00_version_str, ha->model_number,
2297             ha->model_desc ? ha->model_desc : "", pdev->device,
2298             ha->isp_ops->pci_info_str(base_vha, pci_info), pci_name(pdev),
2299             ha->flags.enable_64bit_addressing ? '+' : '-', base_vha->host_no,
2300             ha->isp_ops->fw_version_str(base_vha, fw_str));
2301
2302         return 0;
2303
2304 probe_init_failed:
2305         qla2x00_free_req_que(ha, req);
2306         qla2x00_free_rsp_que(ha, rsp);
2307         ha->max_req_queues = ha->max_rsp_queues = 0;
2308
2309 probe_failed:
2310         if (base_vha->timer_active)
2311                 qla2x00_stop_timer(base_vha);
2312         base_vha->flags.online = 0;
2313         if (ha->dpc_thread) {
2314                 struct task_struct *t = ha->dpc_thread;
2315
2316                 ha->dpc_thread = NULL;
2317                 kthread_stop(t);
2318         }
2319
2320         qla2x00_free_device(base_vha);
2321
2322         scsi_host_put(base_vha->host);
2323
2324 probe_hw_failed:
2325         if (IS_QLA82XX(ha)) {
2326                 qla82xx_idc_lock(ha);
2327                 qla82xx_clear_drv_active(ha);
2328                 qla82xx_idc_unlock(ha);
2329                 iounmap((device_reg_t __iomem *)ha->nx_pcibase);
2330                 if (!ql2xdbwr)
2331                         iounmap((device_reg_t __iomem *)ha->nxdb_wr_ptr);
2332         } else {
2333                 if (ha->iobase)
2334                         iounmap(ha->iobase);
2335         }
2336         pci_release_selected_regions(ha->pdev, ha->bars);
2337         kfree(ha);
2338         ha = NULL;
2339
2340 probe_out:
2341         pci_disable_device(pdev);
2342         return ret;
2343 }
2344
2345 static void
2346 qla2x00_shutdown(struct pci_dev *pdev)
2347 {
2348         scsi_qla_host_t *vha;
2349         struct qla_hw_data  *ha;
2350
2351         vha = pci_get_drvdata(pdev);
2352         ha = vha->hw;
2353
2354         /* Turn-off FCE trace */
2355         if (ha->flags.fce_enabled) {
2356                 qla2x00_disable_fce_trace(vha, NULL, NULL);
2357                 ha->flags.fce_enabled = 0;
2358         }
2359
2360         /* Turn-off EFT trace */
2361         if (ha->eft)
2362                 qla2x00_disable_eft_trace(vha);
2363
2364         /* Stop currently executing firmware. */
2365         qla2x00_try_to_stop_firmware(vha);
2366
2367         /* Turn adapter off line */
2368         vha->flags.online = 0;
2369
2370         /* turn-off interrupts on the card */
2371         if (ha->interrupts_on) {
2372                 vha->flags.init_done = 0;
2373                 ha->isp_ops->disable_intrs(ha);
2374         }
2375
2376         qla2x00_free_irqs(vha);
2377
2378         qla2x00_free_fw_dump(ha);
2379 }
2380
2381 static void
2382 qla2x00_remove_one(struct pci_dev *pdev)
2383 {
2384         scsi_qla_host_t *base_vha, *vha;
2385         struct qla_hw_data  *ha;
2386         unsigned long flags;
2387
2388         base_vha = pci_get_drvdata(pdev);
2389         ha = base_vha->hw;
2390
2391         spin_lock_irqsave(&ha->vport_slock, flags);
2392         list_for_each_entry(vha, &ha->vp_list, list) {
2393                 atomic_inc(&vha->vref_count);
2394
2395                 if (vha && vha->fc_vport) {
2396                         spin_unlock_irqrestore(&ha->vport_slock, flags);
2397
2398                         fc_vport_terminate(vha->fc_vport);
2399
2400                         spin_lock_irqsave(&ha->vport_slock, flags);
2401                 }
2402
2403                 atomic_dec(&vha->vref_count);
2404         }
2405         spin_unlock_irqrestore(&ha->vport_slock, flags);
2406
2407         set_bit(UNLOADING, &base_vha->dpc_flags);
2408
2409         qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
2410
2411         qla2x00_dfs_remove(base_vha);
2412
2413         qla84xx_put_chip(base_vha);
2414
2415         /* Disable timer */
2416         if (base_vha->timer_active)
2417                 qla2x00_stop_timer(base_vha);
2418
2419         base_vha->flags.online = 0;
2420
2421         /* Flush the work queue and remove it */
2422         if (ha->wq) {
2423                 flush_workqueue(ha->wq);
2424                 destroy_workqueue(ha->wq);
2425                 ha->wq = NULL;
2426         }
2427
2428         /* Kill the kernel thread for this host */
2429         if (ha->dpc_thread) {
2430                 struct task_struct *t = ha->dpc_thread;
2431
2432                 /*
2433                  * qla2xxx_wake_dpc checks for ->dpc_thread
2434                  * so we need to zero it out.
2435                  */
2436                 ha->dpc_thread = NULL;
2437                 kthread_stop(t);
2438         }
2439
2440         qla2x00_free_sysfs_attr(base_vha);
2441
2442         fc_remove_host(base_vha->host);
2443
2444         scsi_remove_host(base_vha->host);
2445
2446         qla2x00_free_device(base_vha);
2447
2448         scsi_host_put(base_vha->host);
2449
2450         if (IS_QLA82XX(ha)) {
2451                 qla82xx_idc_lock(ha);
2452                 qla82xx_clear_drv_active(ha);
2453                 qla82xx_idc_unlock(ha);
2454
2455                 iounmap((device_reg_t __iomem *)ha->nx_pcibase);
2456                 if (!ql2xdbwr)
2457                         iounmap((device_reg_t __iomem *)ha->nxdb_wr_ptr);
2458         } else {
2459                 if (ha->iobase)
2460                         iounmap(ha->iobase);
2461
2462                 if (ha->mqiobase)
2463                         iounmap(ha->mqiobase);
2464         }
2465
2466         pci_release_selected_regions(ha->pdev, ha->bars);
2467         kfree(ha);
2468         ha = NULL;
2469
2470         pci_disable_pcie_error_reporting(pdev);
2471
2472         pci_disable_device(pdev);
2473         pci_set_drvdata(pdev, NULL);
2474 }
2475
2476 static void
2477 qla2x00_free_device(scsi_qla_host_t *vha)
2478 {
2479         struct qla_hw_data *ha = vha->hw;
2480
2481         qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
2482
2483         /* Disable timer */
2484         if (vha->timer_active)
2485                 qla2x00_stop_timer(vha);
2486
2487         /* Kill the kernel thread for this host */
2488         if (ha->dpc_thread) {
2489                 struct task_struct *t = ha->dpc_thread;
2490
2491                 /*
2492                  * qla2xxx_wake_dpc checks for ->dpc_thread
2493                  * so we need to zero it out.
2494                  */
2495                 ha->dpc_thread = NULL;
2496                 kthread_stop(t);
2497         }
2498
2499         qla25xx_delete_queues(vha);
2500
2501         if (ha->flags.fce_enabled)
2502                 qla2x00_disable_fce_trace(vha, NULL, NULL);
2503
2504         if (ha->eft)
2505                 qla2x00_disable_eft_trace(vha);
2506
2507         /* Stop currently executing firmware. */
2508         qla2x00_try_to_stop_firmware(vha);
2509
2510         vha->flags.online = 0;
2511
2512         /* turn-off interrupts on the card */
2513         if (ha->interrupts_on) {
2514                 vha->flags.init_done = 0;
2515                 ha->isp_ops->disable_intrs(ha);
2516         }
2517
2518         qla2x00_free_irqs(vha);
2519
2520         qla2x00_free_fcports(vha);
2521
2522         qla2x00_mem_free(ha);
2523
2524         qla2x00_free_queues(ha);
2525 }
2526
2527 void qla2x00_free_fcports(struct scsi_qla_host *vha)
2528 {
2529         fc_port_t *fcport, *tfcport;
2530
2531         list_for_each_entry_safe(fcport, tfcport, &vha->vp_fcports, list) {
2532                 list_del(&fcport->list);
2533                 kfree(fcport);
2534                 fcport = NULL;
2535         }
2536 }
2537
2538 static inline void
2539 qla2x00_schedule_rport_del(struct scsi_qla_host *vha, fc_port_t *fcport,
2540     int defer)
2541 {
2542         struct fc_rport *rport;
2543         scsi_qla_host_t *base_vha;
2544
2545         if (!fcport->rport)
2546                 return;
2547
2548         rport = fcport->rport;
2549         if (defer) {
2550                 base_vha = pci_get_drvdata(vha->hw->pdev);
2551                 spin_lock_irq(vha->host->host_lock);
2552                 fcport->drport = rport;
2553                 spin_unlock_irq(vha->host->host_lock);
2554                 set_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
2555                 qla2xxx_wake_dpc(base_vha);
2556         } else
2557                 fc_remote_port_delete(rport);
2558 }
2559
2560 /*
2561  * qla2x00_mark_device_lost Updates fcport state when device goes offline.
2562  *
2563  * Input: ha = adapter block pointer.  fcport = port structure pointer.
2564  *
2565  * Return: None.
2566  *
2567  * Context:
2568  */
2569 void qla2x00_mark_device_lost(scsi_qla_host_t *vha, fc_port_t *fcport,
2570     int do_login, int defer)
2571 {
2572         if (atomic_read(&fcport->state) == FCS_ONLINE &&
2573             vha->vp_idx == fcport->vp_idx) {
2574                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2575                 qla2x00_schedule_rport_del(vha, fcport, defer);
2576         }
2577         /*
2578          * We may need to retry the login, so don't change the state of the
2579          * port but do the retries.
2580          */
2581         if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
2582                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2583
2584         if (!do_login)
2585                 return;
2586
2587         if (fcport->login_retry == 0) {
2588                 fcport->login_retry = vha->hw->login_retry_count;
2589                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2590
2591                 DEBUG(printk("scsi(%ld): Port login retry: "
2592                     "%02x%02x%02x%02x%02x%02x%02x%02x, "
2593                     "id = 0x%04x retry cnt=%d\n",
2594                     vha->host_no,
2595                     fcport->port_name[0],
2596                     fcport->port_name[1],
2597                     fcport->port_name[2],
2598                     fcport->port_name[3],
2599                     fcport->port_name[4],
2600                     fcport->port_name[5],
2601                     fcport->port_name[6],
2602                     fcport->port_name[7],
2603                     fcport->loop_id,
2604                     fcport->login_retry));
2605         }
2606 }
2607
2608 /*
2609  * qla2x00_mark_all_devices_lost
2610  *      Updates fcport state when device goes offline.
2611  *
2612  * Input:
2613  *      ha = adapter block pointer.
2614  *      fcport = port structure pointer.
2615  *
2616  * Return:
2617  *      None.
2618  *
2619  * Context:
2620  */
2621 void
2622 qla2x00_mark_all_devices_lost(scsi_qla_host_t *vha, int defer)
2623 {
2624         fc_port_t *fcport;
2625
2626         list_for_each_entry(fcport, &vha->vp_fcports, list) {
2627                 if (vha->vp_idx != 0 && vha->vp_idx != fcport->vp_idx)
2628                         continue;
2629
2630                 /*
2631                  * No point in marking the device as lost, if the device is
2632                  * already DEAD.
2633                  */
2634                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
2635                         continue;
2636                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
2637                         if (defer)
2638                                 qla2x00_schedule_rport_del(vha, fcport, defer);
2639                         else if (vha->vp_idx == fcport->vp_idx)
2640                                 qla2x00_schedule_rport_del(vha, fcport, defer);
2641                 }
2642                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2643         }
2644 }
2645
2646 /*
2647 * qla2x00_mem_alloc
2648 *      Allocates adapter memory.
2649 *
2650 * Returns:
2651 *      0  = success.
2652 *      !0  = failure.
2653 */
2654 static int
2655 qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
2656         struct req_que **req, struct rsp_que **rsp)
2657 {
2658         char    name[16];
2659
2660         ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
2661                 &ha->init_cb_dma, GFP_KERNEL);
2662         if (!ha->init_cb)
2663                 goto fail;
2664
2665         ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
2666                 &ha->gid_list_dma, GFP_KERNEL);
2667         if (!ha->gid_list)
2668                 goto fail_free_init_cb;
2669
2670         ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
2671         if (!ha->srb_mempool)
2672                 goto fail_free_gid_list;
2673
2674         if (IS_QLA82XX(ha)) {
2675                 /* Allocate cache for CT6 Ctx. */
2676                 if (!ctx_cachep) {
2677                         ctx_cachep = kmem_cache_create("qla2xxx_ctx",
2678                                 sizeof(struct ct6_dsd), 0,
2679                                 SLAB_HWCACHE_ALIGN, NULL);
2680                         if (!ctx_cachep)
2681                                 goto fail_free_gid_list;
2682                 }
2683                 ha->ctx_mempool = mempool_create_slab_pool(SRB_MIN_REQ,
2684                         ctx_cachep);
2685                 if (!ha->ctx_mempool)
2686                         goto fail_free_srb_mempool;
2687         }
2688
2689         /* Get memory for cached NVRAM */
2690         ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
2691         if (!ha->nvram)
2692                 goto fail_free_ctx_mempool;
2693
2694         snprintf(name, sizeof(name), "%s_%d", QLA2XXX_DRIVER_NAME,
2695                 ha->pdev->device);
2696         ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2697                 DMA_POOL_SIZE, 8, 0);
2698         if (!ha->s_dma_pool)
2699                 goto fail_free_nvram;
2700
2701         if (IS_QLA82XX(ha) || ql2xenabledif) {
2702                 ha->dl_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2703                         DSD_LIST_DMA_POOL_SIZE, 8, 0);
2704                 if (!ha->dl_dma_pool) {
2705                         qla_printk(KERN_WARNING, ha,
2706                             "Memory Allocation failed - dl_dma_pool\n");
2707                         goto fail_s_dma_pool;
2708                 }
2709
2710                 ha->fcp_cmnd_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2711                         FCP_CMND_DMA_POOL_SIZE, 8, 0);
2712                 if (!ha->fcp_cmnd_dma_pool) {
2713                         qla_printk(KERN_WARNING, ha,
2714                             "Memory Allocation failed - fcp_cmnd_dma_pool\n");
2715                         goto fail_dl_dma_pool;
2716                 }
2717         }
2718
2719         /* Allocate memory for SNS commands */
2720         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2721         /* Get consistent memory allocated for SNS commands */
2722                 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
2723                 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
2724                 if (!ha->sns_cmd)
2725                         goto fail_dma_pool;
2726         } else {
2727         /* Get consistent memory allocated for MS IOCB */
2728                 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2729                         &ha->ms_iocb_dma);
2730                 if (!ha->ms_iocb)
2731                         goto fail_dma_pool;
2732         /* Get consistent memory allocated for CT SNS commands */
2733                 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2734                         sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
2735                 if (!ha->ct_sns)
2736                         goto fail_free_ms_iocb;
2737         }
2738
2739         /* Allocate memory for request ring */
2740         *req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
2741         if (!*req) {
2742                 DEBUG(printk("Unable to allocate memory for req\n"));
2743                 goto fail_req;
2744         }
2745         (*req)->length = req_len;
2746         (*req)->ring = dma_alloc_coherent(&ha->pdev->dev,
2747                 ((*req)->length + 1) * sizeof(request_t),
2748                 &(*req)->dma, GFP_KERNEL);
2749         if (!(*req)->ring) {
2750                 DEBUG(printk("Unable to allocate memory for req_ring\n"));
2751                 goto fail_req_ring;
2752         }
2753         /* Allocate memory for response ring */
2754         *rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
2755         if (!*rsp) {
2756                 qla_printk(KERN_WARNING, ha,
2757                         "Unable to allocate memory for rsp\n");
2758                 goto fail_rsp;
2759         }
2760         (*rsp)->hw = ha;
2761         (*rsp)->length = rsp_len;
2762         (*rsp)->ring = dma_alloc_coherent(&ha->pdev->dev,
2763                 ((*rsp)->length + 1) * sizeof(response_t),
2764                 &(*rsp)->dma, GFP_KERNEL);
2765         if (!(*rsp)->ring) {
2766                 qla_printk(KERN_WARNING, ha,
2767                         "Unable to allocate memory for rsp_ring\n");
2768                 goto fail_rsp_ring;
2769         }
2770         (*req)->rsp = *rsp;
2771         (*rsp)->req = *req;
2772         /* Allocate memory for NVRAM data for vports */
2773         if (ha->nvram_npiv_size) {
2774                 ha->npiv_info = kzalloc(sizeof(struct qla_npiv_entry) *
2775                                         ha->nvram_npiv_size, GFP_KERNEL);
2776                 if (!ha->npiv_info) {
2777                         qla_printk(KERN_WARNING, ha,
2778                                 "Unable to allocate memory for npiv info\n");
2779                         goto fail_npiv_info;
2780                 }
2781         } else
2782                 ha->npiv_info = NULL;
2783
2784         /* Get consistent memory allocated for EX-INIT-CB. */
2785         if (IS_QLA8XXX_TYPE(ha)) {
2786                 ha->ex_init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2787                     &ha->ex_init_cb_dma);
2788                 if (!ha->ex_init_cb)
2789                         goto fail_ex_init_cb;
2790         }
2791
2792         INIT_LIST_HEAD(&ha->gbl_dsd_list);
2793
2794         /* Get consistent memory allocated for Async Port-Database. */
2795         if (!IS_FWI2_CAPABLE(ha)) {
2796                 ha->async_pd = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2797                         &ha->async_pd_dma);
2798                 if (!ha->async_pd)
2799                         goto fail_async_pd;
2800         }
2801
2802         INIT_LIST_HEAD(&ha->vp_list);
2803         return 1;
2804
2805 fail_async_pd:
2806         dma_pool_free(ha->s_dma_pool, ha->ex_init_cb, ha->ex_init_cb_dma);
2807 fail_ex_init_cb:
2808         kfree(ha->npiv_info);
2809 fail_npiv_info:
2810         dma_free_coherent(&ha->pdev->dev, ((*rsp)->length + 1) *
2811                 sizeof(response_t), (*rsp)->ring, (*rsp)->dma);
2812         (*rsp)->ring = NULL;
2813         (*rsp)->dma = 0;
2814 fail_rsp_ring:
2815         kfree(*rsp);
2816 fail_rsp:
2817         dma_free_coherent(&ha->pdev->dev, ((*req)->length + 1) *
2818                 sizeof(request_t), (*req)->ring, (*req)->dma);
2819         (*req)->ring = NULL;
2820         (*req)->dma = 0;
2821 fail_req_ring:
2822         kfree(*req);
2823 fail_req:
2824         dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2825                 ha->ct_sns, ha->ct_sns_dma);
2826         ha->ct_sns = NULL;
2827         ha->ct_sns_dma = 0;
2828 fail_free_ms_iocb:
2829         dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2830         ha->ms_iocb = NULL;
2831         ha->ms_iocb_dma = 0;
2832 fail_dma_pool:
2833         if (IS_QLA82XX(ha) || ql2xenabledif) {
2834                 dma_pool_destroy(ha->fcp_cmnd_dma_pool);
2835                 ha->fcp_cmnd_dma_pool = NULL;
2836         }
2837 fail_dl_dma_pool:
2838         if (IS_QLA82XX(ha) || ql2xenabledif) {
2839                 dma_pool_destroy(ha->dl_dma_pool);
2840                 ha->dl_dma_pool = NULL;
2841         }
2842 fail_s_dma_pool:
2843         dma_pool_destroy(ha->s_dma_pool);
2844         ha->s_dma_pool = NULL;
2845 fail_free_nvram:
2846         kfree(ha->nvram);
2847         ha->nvram = NULL;
2848 fail_free_ctx_mempool:
2849         mempool_destroy(ha->ctx_mempool);
2850         ha->ctx_mempool = NULL;
2851 fail_free_srb_mempool:
2852         mempool_destroy(ha->srb_mempool);
2853         ha->srb_mempool = NULL;
2854 fail_free_gid_list:
2855         dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2856         ha->gid_list_dma);
2857         ha->gid_list = NULL;
2858         ha->gid_list_dma = 0;
2859 fail_free_init_cb:
2860         dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
2861         ha->init_cb_dma);
2862         ha->init_cb = NULL;
2863         ha->init_cb_dma = 0;
2864 fail:
2865         DEBUG(printk("%s: Memory allocation failure\n", __func__));
2866         return -ENOMEM;
2867 }
2868
2869 /*
2870 * qla2x00_free_fw_dump
2871 *       Frees fw dump stuff.
2872 *
2873 * Input:
2874 *       ha = adapter block pointer.
2875 */
2876 static void
2877 qla2x00_free_fw_dump(struct qla_hw_data *ha)
2878 {
2879         if (ha->fce)
2880                 dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
2881                     ha->fce_dma);
2882
2883         if (ha->fw_dump) {
2884                 if (ha->eft)
2885                         dma_free_coherent(&ha->pdev->dev,
2886                             ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2887                 vfree(ha->fw_dump);
2888         }
2889         ha->fce = NULL;
2890         ha->fce_dma = 0;
2891         ha->eft = NULL;
2892         ha->eft_dma = 0;
2893         ha->fw_dump = NULL;
2894         ha->fw_dumped = 0;
2895         ha->fw_dump_reading = 0;
2896 }
2897
2898 /*
2899 * qla2x00_mem_free
2900 *      Frees all adapter allocated memory.
2901 *
2902 * Input:
2903 *      ha = adapter block pointer.
2904 */
2905 static void
2906 qla2x00_mem_free(struct qla_hw_data *ha)
2907 {
2908         qla2x00_free_fw_dump(ha);
2909
2910         if (ha->srb_mempool)
2911                 mempool_destroy(ha->srb_mempool);
2912
2913         if (ha->dcbx_tlv)
2914                 dma_free_coherent(&ha->pdev->dev, DCBX_TLV_DATA_SIZE,
2915                     ha->dcbx_tlv, ha->dcbx_tlv_dma);
2916
2917         if (ha->xgmac_data)
2918                 dma_free_coherent(&ha->pdev->dev, XGMAC_DATA_SIZE,
2919                     ha->xgmac_data, ha->xgmac_data_dma);
2920
2921         if (ha->sns_cmd)
2922                 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2923                 ha->sns_cmd, ha->sns_cmd_dma);
2924
2925         if (ha->ct_sns)
2926                 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2927                 ha->ct_sns, ha->ct_sns_dma);
2928
2929         if (ha->sfp_data)
2930                 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2931
2932         if (ha->edc_data)
2933                 dma_pool_free(ha->s_dma_pool, ha->edc_data, ha->edc_data_dma);
2934
2935         if (ha->ms_iocb)
2936                 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2937
2938         if (ha->ex_init_cb)
2939                 dma_pool_free(ha->s_dma_pool,
2940                         ha->ex_init_cb, ha->ex_init_cb_dma);
2941
2942         if (ha->async_pd)
2943                 dma_pool_free(ha->s_dma_pool, ha->async_pd, ha->async_pd_dma);
2944
2945         if (ha->s_dma_pool)
2946                 dma_pool_destroy(ha->s_dma_pool);
2947
2948         if (ha->gid_list)
2949                 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2950                 ha->gid_list_dma);
2951
2952         if (IS_QLA82XX(ha)) {
2953                 if (!list_empty(&ha->gbl_dsd_list)) {
2954                         struct dsd_dma *dsd_ptr, *tdsd_ptr;
2955
2956                         /* clean up allocated prev pool */
2957                         list_for_each_entry_safe(dsd_ptr,
2958                                 tdsd_ptr, &ha->gbl_dsd_list, list) {
2959                                 dma_pool_free(ha->dl_dma_pool,
2960                                 dsd_ptr->dsd_addr, dsd_ptr->dsd_list_dma);
2961                                 list_del(&dsd_ptr->list);
2962                                 kfree(dsd_ptr);
2963                         }
2964                 }
2965         }
2966
2967         if (ha->dl_dma_pool)
2968                 dma_pool_destroy(ha->dl_dma_pool);
2969
2970         if (ha->fcp_cmnd_dma_pool)
2971                 dma_pool_destroy(ha->fcp_cmnd_dma_pool);
2972
2973         if (ha->ctx_mempool)
2974                 mempool_destroy(ha->ctx_mempool);
2975
2976         if (ha->init_cb)
2977                 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
2978                         ha->init_cb, ha->init_cb_dma);
2979         vfree(ha->optrom_buffer);
2980         kfree(ha->nvram);
2981         kfree(ha->npiv_info);
2982
2983         ha->srb_mempool = NULL;
2984         ha->ctx_mempool = NULL;
2985         ha->sns_cmd = NULL;
2986         ha->sns_cmd_dma = 0;
2987         ha->ct_sns = NULL;
2988         ha->ct_sns_dma = 0;
2989         ha->ms_iocb = NULL;
2990         ha->ms_iocb_dma = 0;
2991         ha->init_cb = NULL;
2992         ha->init_cb_dma = 0;
2993         ha->ex_init_cb = NULL;
2994         ha->ex_init_cb_dma = 0;
2995         ha->async_pd = NULL;
2996         ha->async_pd_dma = 0;
2997
2998         ha->s_dma_pool = NULL;
2999         ha->dl_dma_pool = NULL;
3000         ha->fcp_cmnd_dma_pool = NULL;
3001
3002         ha->gid_list = NULL;
3003         ha->gid_list_dma = 0;
3004 }
3005
3006 struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht,
3007                                                 struct qla_hw_data *ha)
3008 {
3009         struct Scsi_Host *host;
3010         struct scsi_qla_host *vha = NULL;
3011
3012         host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
3013         if (host == NULL) {
3014                 printk(KERN_WARNING
3015                 "qla2xxx: Couldn't allocate host from scsi layer!\n");
3016                 goto fail;
3017         }
3018
3019         /* Clear our data area */
3020         vha = shost_priv(host);
3021         memset(vha, 0, sizeof(scsi_qla_host_t));
3022
3023         vha->host = host;
3024         vha->host_no = host->host_no;
3025         vha->hw = ha;
3026
3027         INIT_LIST_HEAD(&vha->vp_fcports);
3028         INIT_LIST_HEAD(&vha->work_list);
3029         INIT_LIST_HEAD(&vha->list);
3030
3031         spin_lock_init(&vha->work_lock);
3032
3033         sprintf(vha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, vha->host_no);
3034         return vha;
3035
3036 fail:
3037         return vha;
3038 }
3039
3040 static struct qla_work_evt *
3041 qla2x00_alloc_work(struct scsi_qla_host *vha, enum qla_work_type type)
3042 {
3043         struct qla_work_evt *e;
3044         uint8_t bail;
3045
3046         QLA_VHA_MARK_BUSY(vha, bail);
3047         if (bail)
3048                 return NULL;
3049
3050         e = kzalloc(sizeof(struct qla_work_evt), GFP_ATOMIC);
3051         if (!e) {
3052                 QLA_VHA_MARK_NOT_BUSY(vha);
3053                 return NULL;
3054         }
3055
3056         INIT_LIST_HEAD(&e->list);
3057         e->type = type;
3058         e->flags = QLA_EVT_FLAG_FREE;
3059         return e;
3060 }
3061
3062 static int
3063 qla2x00_post_work(struct scsi_qla_host *vha, struct qla_work_evt *e)
3064 {
3065         unsigned long flags;
3066
3067         spin_lock_irqsave(&vha->work_lock, flags);
3068         list_add_tail(&e->list, &vha->work_list);
3069         spin_unlock_irqrestore(&vha->work_lock, flags);
3070         qla2xxx_wake_dpc(vha);
3071
3072         return QLA_SUCCESS;
3073 }
3074
3075 int
3076 qla2x00_post_aen_work(struct scsi_qla_host *vha, enum fc_host_event_code code,
3077     u32 data)
3078 {
3079         struct qla_work_evt *e;
3080
3081         e = qla2x00_alloc_work(vha, QLA_EVT_AEN);
3082         if (!e)
3083                 return QLA_FUNCTION_FAILED;
3084
3085         e->u.aen.code = code;
3086         e->u.aen.data = data;
3087         return qla2x00_post_work(vha, e);
3088 }
3089
3090 int
3091 qla2x00_post_idc_ack_work(struct scsi_qla_host *vha, uint16_t *mb)
3092 {
3093         struct qla_work_evt *e;
3094
3095         e = qla2x00_alloc_work(vha, QLA_EVT_IDC_ACK);
3096         if (!e)
3097                 return QLA_FUNCTION_FAILED;
3098
3099         memcpy(e->u.idc_ack.mb, mb, QLA_IDC_ACK_REGS * sizeof(uint16_t));
3100         return qla2x00_post_work(vha, e);
3101 }
3102
3103 #define qla2x00_post_async_work(name, type)     \
3104 int qla2x00_post_async_##name##_work(           \
3105     struct scsi_qla_host *vha,                  \
3106     fc_port_t *fcport, uint16_t *data)          \
3107 {                                               \
3108         struct qla_work_evt *e;                 \
3109                                                 \
3110         e = qla2x00_alloc_work(vha, type);      \
3111         if (!e)                                 \
3112                 return QLA_FUNCTION_FAILED;     \
3113                                                 \
3114         e->u.logio.fcport = fcport;             \
3115         if (data) {                             \
3116                 e->u.logio.data[0] = data[0];   \
3117                 e->u.logio.data[1] = data[1];   \
3118         }                                       \
3119         return qla2x00_post_work(vha, e);       \
3120 }
3121
3122 qla2x00_post_async_work(login, QLA_EVT_ASYNC_LOGIN);
3123 qla2x00_post_async_work(login_done, QLA_EVT_ASYNC_LOGIN_DONE);
3124 qla2x00_post_async_work(logout, QLA_EVT_ASYNC_LOGOUT);
3125 qla2x00_post_async_work(logout_done, QLA_EVT_ASYNC_LOGOUT_DONE);
3126 qla2x00_post_async_work(adisc, QLA_EVT_ASYNC_ADISC);
3127 qla2x00_post_async_work(adisc_done, QLA_EVT_ASYNC_ADISC_DONE);
3128
3129 int
3130 qla2x00_post_uevent_work(struct scsi_qla_host *vha, u32 code)
3131 {
3132         struct qla_work_evt *e;
3133
3134         e = qla2x00_alloc_work(vha, QLA_EVT_UEVENT);
3135         if (!e)
3136                 return QLA_FUNCTION_FAILED;
3137
3138         e->u.uevent.code = code;
3139         return qla2x00_post_work(vha, e);
3140 }
3141
3142 static void
3143 qla2x00_uevent_emit(struct scsi_qla_host *vha, u32 code)
3144 {
3145         char event_string[40];
3146         char *envp[] = { event_string, NULL };
3147
3148         switch (code) {
3149         case QLA_UEVENT_CODE_FW_DUMP:
3150                 snprintf(event_string, sizeof(event_string), "FW_DUMP=%ld",
3151                     vha->host_no);
3152                 break;
3153         default:
3154                 /* do nothing */
3155                 break;
3156         }
3157         kobject_uevent_env(&vha->hw->pdev->dev.kobj, KOBJ_CHANGE, envp);
3158 }
3159
3160 void
3161 qla2x00_do_work(struct scsi_qla_host *vha)
3162 {
3163         struct qla_work_evt *e, *tmp;
3164         unsigned long flags;
3165         LIST_HEAD(work);
3166
3167         spin_lock_irqsave(&vha->work_lock, flags);
3168         list_splice_init(&vha->work_list, &work);
3169         spin_unlock_irqrestore(&vha->work_lock, flags);
3170
3171         list_for_each_entry_safe(e, tmp, &work, list) {
3172                 list_del_init(&e->list);
3173
3174                 switch (e->type) {
3175                 case QLA_EVT_AEN:
3176                         fc_host_post_event(vha->host, fc_get_event_number(),
3177                             e->u.aen.code, e->u.aen.data);
3178                         break;
3179                 case QLA_EVT_IDC_ACK:
3180                         qla81xx_idc_ack(vha, e->u.idc_ack.mb);
3181                         break;
3182                 case QLA_EVT_ASYNC_LOGIN:
3183                         qla2x00_async_login(vha, e->u.logio.fcport,
3184                             e->u.logio.data);
3185                         break;
3186                 case QLA_EVT_ASYNC_LOGIN_DONE:
3187                         qla2x00_async_login_done(vha, e->u.logio.fcport,
3188                             e->u.logio.data);
3189                         break;
3190                 case QLA_EVT_ASYNC_LOGOUT:
3191                         qla2x00_async_logout(vha, e->u.logio.fcport);
3192                         break;
3193                 case QLA_EVT_ASYNC_LOGOUT_DONE:
3194                         qla2x00_async_logout_done(vha, e->u.logio.fcport,
3195                             e->u.logio.data);
3196                         break;
3197                 case QLA_EVT_ASYNC_ADISC:
3198                         qla2x00_async_adisc(vha, e->u.logio.fcport,
3199                             e->u.logio.data);
3200                         break;
3201                 case QLA_EVT_ASYNC_ADISC_DONE:
3202                         qla2x00_async_adisc_done(vha, e->u.logio.fcport,
3203                             e->u.logio.data);
3204                         break;
3205                 case QLA_EVT_UEVENT:
3206                         qla2x00_uevent_emit(vha, e->u.uevent.code);
3207                         break;
3208                 }
3209                 if (e->flags & QLA_EVT_FLAG_FREE)
3210                         kfree(e);
3211
3212                 /* For each work completed decrement vha ref count */
3213                 QLA_VHA_MARK_NOT_BUSY(vha);
3214         }
3215 }
3216
3217 /* Relogins all the fcports of a vport
3218  * Context: dpc thread
3219  */
3220 void qla2x00_relogin(struct scsi_qla_host *vha)
3221 {
3222         fc_port_t       *fcport;
3223         int status;
3224         uint16_t        next_loopid = 0;
3225         struct qla_hw_data *ha = vha->hw;
3226         uint16_t data[2];
3227
3228         list_for_each_entry(fcport, &vha->vp_fcports, list) {
3229         /*
3230          * If the port is not ONLINE then try to login
3231          * to it if we haven't run out of retries.
3232          */
3233                 if (atomic_read(&fcport->state) != FCS_ONLINE &&
3234                     fcport->login_retry && !(fcport->flags & FCF_ASYNC_SENT)) {
3235                         fcport->login_retry--;
3236                         if (fcport->flags & FCF_FABRIC_DEVICE) {
3237                                 if (fcport->flags & FCF_FCP2_DEVICE)
3238                                         ha->isp_ops->fabric_logout(vha,
3239                                                         fcport->loop_id,
3240                                                         fcport->d_id.b.domain,
3241                                                         fcport->d_id.b.area,
3242                                                         fcport->d_id.b.al_pa);
3243
3244                                 if (IS_ALOGIO_CAPABLE(ha)) {
3245                                         fcport->flags |= FCF_ASYNC_SENT;
3246                                         data[0] = 0;
3247                                         data[1] = QLA_LOGIO_LOGIN_RETRIED;
3248                                         status = qla2x00_post_async_login_work(
3249                                             vha, fcport, data);
3250                                         if (status == QLA_SUCCESS)
3251                                                 continue;
3252                                         /* Attempt a retry. */
3253                                         status = 1;
3254                                 } else
3255                                         status = qla2x00_fabric_login(vha,
3256                                             fcport, &next_loopid);
3257                         } else
3258                                 status = qla2x00_local_device_login(vha,
3259                                                                 fcport);
3260
3261                         if (status == QLA_SUCCESS) {
3262                                 fcport->old_loop_id = fcport->loop_id;
3263
3264                                 DEBUG(printk("scsi(%ld): port login OK: logged "
3265                                 "in ID 0x%x\n", vha->host_no, fcport->loop_id));
3266
3267                                 qla2x00_update_fcport(vha, fcport);
3268
3269                         } else if (status == 1) {
3270                                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
3271                                 /* retry the login again */
3272                                 DEBUG(printk("scsi(%ld): Retrying"
3273                                 " %d login again loop_id 0x%x\n",
3274                                 vha->host_no, fcport->login_retry,
3275                                                 fcport->loop_id));
3276                         } else {
3277                                 fcport->login_retry = 0;
3278                         }
3279
3280                         if (fcport->login_retry == 0 && status != QLA_SUCCESS)
3281                                 fcport->loop_id = FC_NO_LOOP_ID;
3282                 }
3283                 if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
3284                         break;
3285         }
3286 }
3287
3288 /**************************************************************************
3289 * qla2x00_do_dpc
3290 *   This kernel thread is a task that is schedule by the interrupt handler
3291 *   to perform the background processing for interrupts.
3292 *
3293 * Notes:
3294 * This task always run in the context of a kernel thread.  It
3295 * is kick-off by the driver's detect code and starts up
3296 * up one per adapter. It immediately goes to sleep and waits for
3297 * some fibre event.  When either the interrupt handler or
3298 * the timer routine detects a event it will one of the task
3299 * bits then wake us up.
3300 **************************************************************************/
3301 static int
3302 qla2x00_do_dpc(void *data)
3303 {
3304         int             rval;
3305         scsi_qla_host_t *base_vha;
3306         struct qla_hw_data *ha;
3307
3308         ha = (struct qla_hw_data *)data;
3309         base_vha = pci_get_drvdata(ha->pdev);
3310
3311         set_user_nice(current, -20);
3312
3313         while (!kthread_should_stop()) {
3314                 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
3315
3316                 set_current_state(TASK_INTERRUPTIBLE);
3317                 schedule();
3318                 __set_current_state(TASK_RUNNING);
3319
3320                 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
3321
3322                 /* Initialization not yet finished. Don't do anything yet. */
3323                 if (!base_vha->flags.init_done)
3324                         continue;
3325
3326                 if (ha->flags.eeh_busy) {
3327                         DEBUG17(qla_printk(KERN_WARNING, ha,
3328                             "qla2x00_do_dpc: dpc_flags: %lx\n",
3329                             base_vha->dpc_flags));
3330                         continue;
3331                 }
3332
3333                 DEBUG3(printk("scsi(%ld): DPC handler\n", base_vha->host_no));
3334
3335                 ha->dpc_active = 1;
3336
3337                 if (ha->flags.mbox_busy) {
3338                         ha->dpc_active = 0;
3339                         continue;
3340                 }
3341
3342                 qla2x00_do_work(base_vha);
3343
3344                 if (IS_QLA82XX(ha)) {
3345                         if (test_and_clear_bit(ISP_UNRECOVERABLE,
3346                                 &base_vha->dpc_flags)) {
3347                                 qla82xx_idc_lock(ha);
3348                                 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3349                                         QLA82XX_DEV_FAILED);
3350                                 qla82xx_idc_unlock(ha);
3351                                 qla_printk(KERN_INFO, ha,
3352                                         "HW State: FAILED\n");
3353                                 qla82xx_device_state_handler(base_vha);
3354                                 continue;
3355                         }
3356
3357                         if (test_and_clear_bit(FCOE_CTX_RESET_NEEDED,
3358                                 &base_vha->dpc_flags)) {
3359
3360                                 DEBUG(printk(KERN_INFO
3361                                         "scsi(%ld): dpc: sched "
3362                                         "qla82xx_fcoe_ctx_reset ha = %p\n",
3363                                         base_vha->host_no, ha));
3364                                 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
3365                                         &base_vha->dpc_flags))) {
3366                                         if (qla82xx_fcoe_ctx_reset(base_vha)) {
3367                                                 /* FCoE-ctx reset failed.
3368                                                  * Escalate to chip-reset
3369                                                  */
3370                                                 set_bit(ISP_ABORT_NEEDED,
3371                                                         &base_vha->dpc_flags);
3372                                         }
3373                                         clear_bit(ABORT_ISP_ACTIVE,
3374                                                 &base_vha->dpc_flags);
3375                                 }
3376
3377                                 DEBUG(printk("scsi(%ld): dpc:"
3378                                         " qla82xx_fcoe_ctx_reset end\n",
3379                                         base_vha->host_no));
3380                         }
3381                 }
3382
3383                 if (test_and_clear_bit(ISP_ABORT_NEEDED,
3384                                                 &base_vha->dpc_flags)) {
3385
3386                         DEBUG(printk("scsi(%ld): dpc: sched "
3387                             "qla2x00_abort_isp ha = %p\n",
3388                             base_vha->host_no, ha));
3389                         if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
3390                             &base_vha->dpc_flags))) {
3391
3392                                 if (ha->isp_ops->abort_isp(base_vha)) {
3393                                         /* failed. retry later */
3394                                         set_bit(ISP_ABORT_NEEDED,
3395                                             &base_vha->dpc_flags);
3396                                 }
3397                                 clear_bit(ABORT_ISP_ACTIVE,
3398                                                 &base_vha->dpc_flags);
3399                         }
3400
3401                         DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
3402                             base_vha->host_no));
3403                 }
3404
3405                 if (test_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags)) {
3406                         qla2x00_update_fcports(base_vha);
3407                         clear_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
3408                 }
3409
3410                 if (test_and_clear_bit(RESET_MARKER_NEEDED,
3411                                                         &base_vha->dpc_flags) &&
3412                     (!(test_and_set_bit(RESET_ACTIVE, &base_vha->dpc_flags)))) {
3413
3414                         DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
3415                             base_vha->host_no));
3416
3417                         qla2x00_rst_aen(base_vha);
3418                         clear_bit(RESET_ACTIVE, &base_vha->dpc_flags);
3419                 }
3420
3421                 /* Retry each device up to login retry count */
3422                 if ((test_and_clear_bit(RELOGIN_NEEDED,
3423                                                 &base_vha->dpc_flags)) &&
3424                     !test_bit(LOOP_RESYNC_NEEDED, &base_vha->dpc_flags) &&
3425                     atomic_read(&base_vha->loop_state) != LOOP_DOWN) {
3426
3427                         DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
3428                                         base_vha->host_no));
3429                         qla2x00_relogin(base_vha);
3430
3431                         DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
3432                             base_vha->host_no));
3433                 }
3434
3435                 if (test_and_clear_bit(LOOP_RESYNC_NEEDED,
3436                                                         &base_vha->dpc_flags)) {
3437
3438                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
3439                                 base_vha->host_no));
3440
3441                         if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
3442                             &base_vha->dpc_flags))) {
3443
3444                                 rval = qla2x00_loop_resync(base_vha);
3445
3446                                 clear_bit(LOOP_RESYNC_ACTIVE,
3447                                                 &base_vha->dpc_flags);
3448                         }
3449
3450                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
3451                             base_vha->host_no));
3452                 }
3453
3454                 if (test_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags) &&
3455                     atomic_read(&base_vha->loop_state) == LOOP_READY) {
3456                         clear_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags);
3457                         qla2xxx_flash_npiv_conf(base_vha);
3458                 }
3459
3460                 if (!ha->interrupts_on)
3461                         ha->isp_ops->enable_intrs(ha);
3462
3463                 if (test_and_clear_bit(BEACON_BLINK_NEEDED,
3464                                         &base_vha->dpc_flags))
3465                         ha->isp_ops->beacon_blink(base_vha);
3466
3467                 qla2x00_do_dpc_all_vps(base_vha);
3468
3469                 ha->dpc_active = 0;
3470         } /* End of while(1) */
3471
3472         DEBUG(printk("scsi(%ld): DPC handler exiting\n", base_vha->host_no));
3473
3474         /*
3475          * Make sure that nobody tries to wake us up again.
3476          */
3477         ha->dpc_active = 0;
3478
3479         /* Cleanup any residual CTX SRBs. */
3480         qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
3481
3482         return 0;
3483 }
3484
3485 void
3486 qla2xxx_wake_dpc(struct scsi_qla_host *vha)
3487 {
3488         struct qla_hw_data *ha = vha->hw;
3489         struct task_struct *t = ha->dpc_thread;
3490
3491         if (!test_bit(UNLOADING, &vha->dpc_flags) && t)
3492                 wake_up_process(t);
3493 }
3494
3495 /*
3496 *  qla2x00_rst_aen
3497 *      Processes asynchronous reset.
3498 *
3499 * Input:
3500 *      ha  = adapter block pointer.
3501 */
3502 static void
3503 qla2x00_rst_aen(scsi_qla_host_t *vha)
3504 {
3505         if (vha->flags.online && !vha->flags.reset_active &&
3506             !atomic_read(&vha->loop_down_timer) &&
3507             !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) {
3508                 do {
3509                         clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
3510
3511                         /*
3512                          * Issue marker command only when we are going to start
3513                          * the I/O.
3514                          */
3515                         vha->marker_needed = 1;
3516                 } while (!atomic_read(&vha->loop_down_timer) &&
3517                     (test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags)));
3518         }
3519 }
3520
3521 static void
3522 qla2x00_sp_free_dma(srb_t *sp)
3523 {
3524         struct scsi_cmnd *cmd = sp->cmd;
3525         struct qla_hw_data *ha = sp->fcport->vha->hw;
3526
3527         if (sp->flags & SRB_DMA_VALID) {
3528                 scsi_dma_unmap(cmd);
3529                 sp->flags &= ~SRB_DMA_VALID;
3530         }
3531
3532         if (sp->flags & SRB_CRC_PROT_DMA_VALID) {
3533                 dma_unmap_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
3534                     scsi_prot_sg_count(cmd), cmd->sc_data_direction);
3535                 sp->flags &= ~SRB_CRC_PROT_DMA_VALID;
3536         }
3537
3538         if (sp->flags & SRB_CRC_CTX_DSD_VALID) {
3539                 /* List assured to be having elements */
3540                 qla2x00_clean_dsd_pool(ha, sp);
3541                 sp->flags &= ~SRB_CRC_CTX_DSD_VALID;
3542         }
3543
3544         if (sp->flags & SRB_CRC_CTX_DMA_VALID) {
3545                 dma_pool_free(ha->dl_dma_pool, sp->ctx,
3546                     ((struct crc_context *)sp->ctx)->crc_ctx_dma);
3547                 sp->flags &= ~SRB_CRC_CTX_DMA_VALID;
3548         }
3549
3550         CMD_SP(cmd) = NULL;
3551 }
3552
3553 static void
3554 qla2x00_sp_final_compl(struct qla_hw_data *ha, srb_t *sp)
3555 {
3556         struct scsi_cmnd *cmd = sp->cmd;
3557
3558         qla2x00_sp_free_dma(sp);
3559
3560         if (sp->flags & SRB_FCP_CMND_DMA_VALID) {
3561                 struct ct6_dsd *ctx = sp->ctx;
3562                 dma_pool_free(ha->fcp_cmnd_dma_pool, ctx->fcp_cmnd,
3563                         ctx->fcp_cmnd_dma);
3564                 list_splice(&ctx->dsd_list, &ha->gbl_dsd_list);
3565                 ha->gbl_dsd_inuse -= ctx->dsd_use_cnt;
3566                 ha->gbl_dsd_avail += ctx->dsd_use_cnt;
3567                 mempool_free(sp->ctx, ha->ctx_mempool);
3568                 sp->ctx = NULL;
3569         }
3570
3571         mempool_free(sp, ha->srb_mempool);
3572         cmd->scsi_done(cmd);
3573 }
3574
3575 void
3576 qla2x00_sp_compl(struct qla_hw_data *ha, srb_t *sp)
3577 {
3578         if (atomic_read(&sp->ref_count) == 0) {
3579                 DEBUG2(qla_printk(KERN_WARNING, ha,
3580                     "SP reference-count to ZERO -- sp=%p\n", sp));
3581                 DEBUG2(BUG());
3582                 return;
3583         }
3584         if (!atomic_dec_and_test(&sp->ref_count))
3585                 return;
3586         qla2x00_sp_final_compl(ha, sp);
3587 }
3588
3589 /**************************************************************************
3590 *   qla2x00_timer
3591 *
3592 * Description:
3593 *   One second timer
3594 *
3595 * Context: Interrupt
3596 ***************************************************************************/
3597 void
3598 qla2x00_timer(scsi_qla_host_t *vha)
3599 {
3600         unsigned long   cpu_flags = 0;
3601         int             start_dpc = 0;
3602         int             index;
3603         srb_t           *sp;
3604         uint16_t        w;
3605         struct qla_hw_data *ha = vha->hw;
3606         struct req_que *req;
3607
3608         if (ha->flags.eeh_busy) {
3609                 qla2x00_restart_timer(vha, WATCH_INTERVAL);
3610                 return;
3611         }
3612
3613         if (IS_QLA82XX(ha))
3614                 qla82xx_watchdog(vha);
3615
3616         /* Hardware read to raise pending EEH errors during mailbox waits. */
3617         if (!pci_channel_offline(ha->pdev))
3618                 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
3619
3620         /* Loop down handler. */
3621         if (atomic_read(&vha->loop_down_timer) > 0 &&
3622             !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
3623                 && vha->flags.online) {
3624
3625                 if (atomic_read(&vha->loop_down_timer) ==
3626                     vha->loop_down_abort_time) {
3627
3628                         DEBUG(printk("scsi(%ld): Loop Down - aborting the "
3629                             "queues before time expire\n",
3630                             vha->host_no));
3631
3632                         if (!IS_QLA2100(ha) && vha->link_down_timeout)
3633                                 atomic_set(&vha->loop_state, LOOP_DEAD);
3634
3635                         /*
3636                          * Schedule an ISP abort to return any FCP2-device
3637                          * commands.
3638                          */
3639                         /* NPIV - scan physical port only */
3640                         if (!vha->vp_idx) {
3641                                 spin_lock_irqsave(&ha->hardware_lock,
3642                                     cpu_flags);
3643                                 req = ha->req_q_map[0];
3644                                 for (index = 1;
3645                                     index < MAX_OUTSTANDING_COMMANDS;
3646                                     index++) {
3647                                         fc_port_t *sfcp;
3648
3649                                         sp = req->outstanding_cmds[index];
3650                                         if (!sp)
3651                                                 continue;
3652                                         if (sp->ctx && !IS_PROT_IO(sp))
3653                                                 continue;
3654                                         sfcp = sp->fcport;
3655                                         if (!(sfcp->flags & FCF_FCP2_DEVICE))
3656                                                 continue;
3657
3658                                         set_bit(ISP_ABORT_NEEDED,
3659                                                         &vha->dpc_flags);
3660                                         break;
3661                                 }
3662                                 spin_unlock_irqrestore(&ha->hardware_lock,
3663                                                                 cpu_flags);
3664                         }
3665                         start_dpc++;
3666                 }
3667
3668                 /* if the loop has been down for 4 minutes, reinit adapter */
3669                 if (atomic_dec_and_test(&vha->loop_down_timer) != 0) {
3670                         if (!(vha->device_flags & DFLG_NO_CABLE)) {
3671                                 DEBUG(printk("scsi(%ld): Loop down - "
3672                                     "aborting ISP.\n",
3673                                     vha->host_no));
3674                                 qla_printk(KERN_WARNING, ha,
3675                                     "Loop down - aborting ISP.\n");
3676
3677                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3678                         }
3679                 }
3680                 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
3681                     vha->host_no,
3682                     atomic_read(&vha->loop_down_timer)));
3683         }
3684
3685         /* Check if beacon LED needs to be blinked */
3686         if (ha->beacon_blink_led == 1) {
3687                 set_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags);
3688                 start_dpc++;
3689         }
3690
3691         /* Process any deferred work. */
3692         if (!list_empty(&vha->work_list))
3693                 start_dpc++;
3694
3695         /* Schedule the DPC routine if needed */
3696         if ((test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
3697             test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) ||
3698             test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags) ||
3699             start_dpc ||
3700             test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) ||
3701             test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags) ||
3702             test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags) ||
3703             test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) ||
3704             test_bit(VP_DPC_NEEDED, &vha->dpc_flags) ||
3705             test_bit(RELOGIN_NEEDED, &vha->dpc_flags)))
3706                 qla2xxx_wake_dpc(vha);
3707
3708         qla2x00_restart_timer(vha, WATCH_INTERVAL);
3709 }
3710
3711 /* Firmware interface routines. */
3712
3713 #define FW_BLOBS        8
3714 #define FW_ISP21XX      0
3715 #define FW_ISP22XX      1
3716 #define FW_ISP2300      2
3717 #define FW_ISP2322      3
3718 #define FW_ISP24XX      4
3719 #define FW_ISP25XX      5
3720 #define FW_ISP81XX      6
3721 #define FW_ISP82XX      7
3722
3723 #define FW_FILE_ISP21XX "ql2100_fw.bin"
3724 #define FW_FILE_ISP22XX "ql2200_fw.bin"
3725 #define FW_FILE_ISP2300 "ql2300_fw.bin"
3726 #define FW_FILE_ISP2322 "ql2322_fw.bin"
3727 #define FW_FILE_ISP24XX "ql2400_fw.bin"
3728 #define FW_FILE_ISP25XX "ql2500_fw.bin"
3729 #define FW_FILE_ISP81XX "ql8100_fw.bin"
3730 #define FW_FILE_ISP82XX "ql8200_fw.bin"
3731
3732 static DEFINE_MUTEX(qla_fw_lock);
3733
3734 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
3735         { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
3736         { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
3737         { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
3738         { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
3739         { .name = FW_FILE_ISP24XX, },
3740         { .name = FW_FILE_ISP25XX, },
3741         { .name = FW_FILE_ISP81XX, },
3742         { .name = FW_FILE_ISP82XX, },
3743 };
3744
3745 struct fw_blob *
3746 qla2x00_request_firmware(scsi_qla_host_t *vha)
3747 {
3748         struct qla_hw_data *ha = vha->hw;
3749         struct fw_blob *blob;
3750
3751         blob = NULL;
3752         if (IS_QLA2100(ha)) {
3753                 blob = &qla_fw_blobs[FW_ISP21XX];
3754         } else if (IS_QLA2200(ha)) {
3755                 blob = &qla_fw_blobs[FW_ISP22XX];
3756         } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
3757                 blob = &qla_fw_blobs[FW_ISP2300];
3758         } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
3759                 blob = &qla_fw_blobs[FW_ISP2322];
3760         } else if (IS_QLA24XX_TYPE(ha)) {
3761                 blob = &qla_fw_blobs[FW_ISP24XX];
3762         } else if (IS_QLA25XX(ha)) {
3763                 blob = &qla_fw_blobs[FW_ISP25XX];
3764         } else if (IS_QLA81XX(ha)) {
3765                 blob = &qla_fw_blobs[FW_ISP81XX];
3766         } else if (IS_QLA82XX(ha)) {
3767                 blob = &qla_fw_blobs[FW_ISP82XX];
3768         }
3769
3770         mutex_lock(&qla_fw_lock);
3771         if (blob->fw)
3772                 goto out;
3773
3774         if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
3775                 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
3776                     "(%s).\n", vha->host_no, blob->name));
3777                 blob->fw = NULL;
3778                 blob = NULL;
3779                 goto out;
3780         }
3781
3782 out:
3783         mutex_unlock(&qla_fw_lock);
3784         return blob;
3785 }
3786
3787 static void
3788 qla2x00_release_firmware(void)
3789 {
3790         int idx;
3791
3792         mutex_lock(&qla_fw_lock);
3793         for (idx = 0; idx < FW_BLOBS; idx++)
3794                 if (qla_fw_blobs[idx].fw)
3795                         release_firmware(qla_fw_blobs[idx].fw);
3796         mutex_unlock(&qla_fw_lock);
3797 }
3798
3799 static pci_ers_result_t
3800 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
3801 {
3802         scsi_qla_host_t *vha = pci_get_drvdata(pdev);
3803         struct qla_hw_data *ha = vha->hw;
3804
3805         DEBUG2(qla_printk(KERN_WARNING, ha, "error_detected:state %x\n",
3806             state));
3807
3808         switch (state) {
3809         case pci_channel_io_normal:
3810                 ha->flags.eeh_busy = 0;
3811                 return PCI_ERS_RESULT_CAN_RECOVER;
3812         case pci_channel_io_frozen:
3813                 ha->flags.eeh_busy = 1;
3814                 /* For ISP82XX complete any pending mailbox cmd */
3815                 if (IS_QLA82XX(ha)) {
3816                         ha->flags.fw_hung = 1;
3817                         if (ha->flags.mbox_busy) {
3818                                 ha->flags.mbox_int = 1;
3819                                 DEBUG2(qla_printk(KERN_ERR, ha,
3820                                         "Due to pci channel io frozen, doing premature "
3821                                         "completion of mbx command\n"));
3822                                 complete(&ha->mbx_intr_comp);
3823                         }
3824                 }
3825                 qla2x00_free_irqs(vha);
3826                 pci_disable_device(pdev);
3827                 /* Return back all IOs */
3828                 qla2x00_abort_all_cmds(vha, DID_RESET << 16);
3829                 return PCI_ERS_RESULT_NEED_RESET;
3830         case pci_channel_io_perm_failure:
3831                 ha->flags.pci_channel_io_perm_failure = 1;
3832                 qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
3833                 return PCI_ERS_RESULT_DISCONNECT;
3834         }
3835         return PCI_ERS_RESULT_NEED_RESET;
3836 }
3837
3838 static pci_ers_result_t
3839 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
3840 {
3841         int risc_paused = 0;
3842         uint32_t stat;
3843         unsigned long flags;
3844         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3845         struct qla_hw_data *ha = base_vha->hw;
3846         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3847         struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
3848
3849         if (IS_QLA82XX(ha))
3850                 return PCI_ERS_RESULT_RECOVERED;
3851
3852         spin_lock_irqsave(&ha->hardware_lock, flags);
3853         if (IS_QLA2100(ha) || IS_QLA2200(ha)){
3854                 stat = RD_REG_DWORD(&reg->hccr);
3855                 if (stat & HCCR_RISC_PAUSE)
3856                         risc_paused = 1;
3857         } else if (IS_QLA23XX(ha)) {
3858                 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
3859                 if (stat & HSR_RISC_PAUSED)
3860                         risc_paused = 1;
3861         } else if (IS_FWI2_CAPABLE(ha)) {
3862                 stat = RD_REG_DWORD(&reg24->host_status);
3863                 if (stat & HSRX_RISC_PAUSED)
3864                         risc_paused = 1;
3865         }
3866         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3867
3868         if (risc_paused) {
3869                 qla_printk(KERN_INFO, ha, "RISC paused -- mmio_enabled, "
3870                     "Dumping firmware!\n");
3871                 ha->isp_ops->fw_dump(base_vha, 0);
3872
3873                 return PCI_ERS_RESULT_NEED_RESET;
3874         } else
3875                 return PCI_ERS_RESULT_RECOVERED;
3876 }
3877
3878 uint32_t qla82xx_error_recovery(scsi_qla_host_t *base_vha)
3879 {
3880         uint32_t rval = QLA_FUNCTION_FAILED;
3881         uint32_t drv_active = 0;
3882         struct qla_hw_data *ha = base_vha->hw;
3883         int fn;
3884         struct pci_dev *other_pdev = NULL;
3885
3886         DEBUG17(qla_printk(KERN_INFO, ha,
3887             "scsi(%ld): In qla82xx_error_recovery\n", base_vha->host_no));
3888
3889         set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
3890
3891         if (base_vha->flags.online) {
3892                 /* Abort all outstanding commands,
3893                  * so as to be requeued later */
3894                 qla2x00_abort_isp_cleanup(base_vha);
3895         }
3896
3897
3898         fn = PCI_FUNC(ha->pdev->devfn);
3899         while (fn > 0) {
3900                 fn--;
3901                 DEBUG17(qla_printk(KERN_INFO, ha,
3902                     "Finding pci device at function = 0x%x\n", fn));
3903                 other_pdev =
3904                     pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus),
3905                     ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
3906                     fn));
3907
3908                 if (!other_pdev)
3909                         continue;
3910                 if (atomic_read(&other_pdev->enable_cnt)) {
3911                         DEBUG17(qla_printk(KERN_INFO, ha,
3912                             "Found PCI func availabe and enabled at 0x%x\n",
3913                             fn));
3914                         pci_dev_put(other_pdev);
3915                         break;
3916                 }
3917                 pci_dev_put(other_pdev);
3918         }
3919
3920         if (!fn) {
3921                 /* Reset owner */
3922                 DEBUG17(qla_printk(KERN_INFO, ha,
3923                     "This devfn is reset owner = 0x%x\n", ha->pdev->devfn));
3924                 qla82xx_idc_lock(ha);
3925
3926                 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3927                     QLA82XX_DEV_INITIALIZING);
3928
3929                 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION,
3930                     QLA82XX_IDC_VERSION);
3931
3932                 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3933                 DEBUG17(qla_printk(KERN_INFO, ha,
3934                     "drv_active = 0x%x\n", drv_active));
3935
3936                 qla82xx_idc_unlock(ha);
3937                 /* Reset if device is not already reset
3938                  * drv_active would be 0 if a reset has already been done
3939                  */
3940                 if (drv_active)
3941                         rval = qla82xx_start_firmware(base_vha);
3942                 else
3943                         rval = QLA_SUCCESS;
3944                 qla82xx_idc_lock(ha);
3945
3946                 if (rval != QLA_SUCCESS) {
3947                         qla_printk(KERN_INFO, ha, "HW State: FAILED\n");
3948                         qla82xx_clear_drv_active(ha);
3949                         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3950                             QLA82XX_DEV_FAILED);
3951                 } else {
3952                         qla_printk(KERN_INFO, ha, "HW State: READY\n");
3953                         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3954                             QLA82XX_DEV_READY);
3955                         qla82xx_idc_unlock(ha);
3956                         ha->flags.fw_hung = 0;
3957                         rval = qla82xx_restart_isp(base_vha);
3958                         qla82xx_idc_lock(ha);
3959                         /* Clear driver state register */
3960                         qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, 0);
3961                         qla82xx_set_drv_active(base_vha);
3962                 }
3963                 qla82xx_idc_unlock(ha);
3964         } else {
3965                 DEBUG17(qla_printk(KERN_INFO, ha,
3966                     "This devfn is not reset owner = 0x%x\n", ha->pdev->devfn));
3967                 if ((qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE) ==
3968                     QLA82XX_DEV_READY)) {
3969                         ha->flags.fw_hung = 0;
3970                         rval = qla82xx_restart_isp(base_vha);
3971                         qla82xx_idc_lock(ha);
3972                         qla82xx_set_drv_active(base_vha);
3973                         qla82xx_idc_unlock(ha);
3974                 }
3975         }
3976         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
3977
3978         return rval;
3979 }
3980
3981 static pci_ers_result_t
3982 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
3983 {
3984         pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
3985         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3986         struct qla_hw_data *ha = base_vha->hw;
3987         struct rsp_que *rsp;
3988         int rc, retries = 10;
3989
3990         DEBUG17(qla_printk(KERN_WARNING, ha, "slot_reset\n"));
3991
3992         /* Workaround: qla2xxx driver which access hardware earlier
3993          * needs error state to be pci_channel_io_online.
3994          * Otherwise mailbox command timesout.
3995          */
3996         pdev->error_state = pci_channel_io_normal;
3997
3998         pci_restore_state(pdev);
3999
4000         /* pci_restore_state() clears the saved_state flag of the device
4001          * save restored state which resets saved_state flag
4002          */
4003         pci_save_state(pdev);
4004
4005         if (ha->mem_only)
4006                 rc = pci_enable_device_mem(pdev);
4007         else
4008                 rc = pci_enable_device(pdev);
4009
4010         if (rc) {
4011                 qla_printk(KERN_WARNING, ha,
4012                     "Can't re-enable PCI device after reset.\n");
4013                 goto exit_slot_reset;
4014         }
4015
4016         rsp = ha->rsp_q_map[0];
4017         if (qla2x00_request_irqs(ha, rsp))
4018                 goto exit_slot_reset;
4019
4020         if (ha->isp_ops->pci_config(base_vha))
4021                 goto exit_slot_reset;
4022
4023         if (IS_QLA82XX(ha)) {
4024                 if (qla82xx_error_recovery(base_vha) == QLA_SUCCESS) {
4025                         ret = PCI_ERS_RESULT_RECOVERED;
4026                         goto exit_slot_reset;
4027                 } else
4028                         goto exit_slot_reset;
4029         }
4030
4031         while (ha->flags.mbox_busy && retries--)
4032                 msleep(1000);
4033
4034         set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
4035         if (ha->isp_ops->abort_isp(base_vha) == QLA_SUCCESS)
4036                 ret =  PCI_ERS_RESULT_RECOVERED;
4037         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
4038
4039
4040 exit_slot_reset:
4041         DEBUG17(qla_printk(KERN_WARNING, ha,
4042             "slot_reset-return:ret=%x\n", ret));
4043
4044         return ret;
4045 }
4046
4047 static void
4048 qla2xxx_pci_resume(struct pci_dev *pdev)
4049 {
4050         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
4051         struct qla_hw_data *ha = base_vha->hw;
4052         int ret;
4053
4054         DEBUG17(qla_printk(KERN_WARNING, ha, "pci_resume\n"));
4055
4056         ret = qla2x00_wait_for_hba_online(base_vha);
4057         if (ret != QLA_SUCCESS) {
4058                 qla_printk(KERN_ERR, ha,
4059                     "the device failed to resume I/O "
4060                     "from slot/link_reset");
4061         }
4062
4063         pci_cleanup_aer_uncorrect_error_status(pdev);
4064
4065         ha->flags.eeh_busy = 0;
4066 }
4067
4068 static struct pci_error_handlers qla2xxx_err_handler = {
4069         .error_detected = qla2xxx_pci_error_detected,
4070         .mmio_enabled = qla2xxx_pci_mmio_enabled,
4071         .slot_reset = qla2xxx_pci_slot_reset,
4072         .resume = qla2xxx_pci_resume,
4073 };
4074
4075 static struct pci_device_id qla2xxx_pci_tbl[] = {
4076         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
4077         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
4078         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
4079         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
4080         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
4081         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
4082         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
4083         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
4084         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
4085         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) },
4086         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
4087         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
4088         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
4089         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8001) },
4090         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8021) },
4091         { 0 },
4092 };
4093 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
4094
4095 static struct pci_driver qla2xxx_pci_driver = {
4096         .name           = QLA2XXX_DRIVER_NAME,
4097         .driver         = {
4098                 .owner          = THIS_MODULE,
4099         },
4100         .id_table       = qla2xxx_pci_tbl,
4101         .probe          = qla2x00_probe_one,
4102         .remove         = qla2x00_remove_one,
4103         .shutdown       = qla2x00_shutdown,
4104         .err_handler    = &qla2xxx_err_handler,
4105 };
4106
4107 static struct file_operations apidev_fops = {
4108         .owner = THIS_MODULE,
4109         .llseek = noop_llseek,
4110 };
4111
4112 /**
4113  * qla2x00_module_init - Module initialization.
4114  **/
4115 static int __init
4116 qla2x00_module_init(void)
4117 {
4118         int ret = 0;
4119
4120         /* Allocate cache for SRBs. */
4121         srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
4122             SLAB_HWCACHE_ALIGN, NULL);
4123         if (srb_cachep == NULL) {
4124                 printk(KERN_ERR
4125                     "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
4126                 return -ENOMEM;
4127         }
4128
4129         /* Derive version string. */
4130         strcpy(qla2x00_version_str, QLA2XXX_VERSION);
4131         if (ql2xextended_error_logging)
4132                 strcat(qla2x00_version_str, "-debug");
4133
4134         qla2xxx_transport_template =
4135             fc_attach_transport(&qla2xxx_transport_functions);
4136         if (!qla2xxx_transport_template) {
4137                 kmem_cache_destroy(srb_cachep);
4138                 return -ENODEV;
4139         }
4140
4141         apidev_major = register_chrdev(0, QLA2XXX_APIDEV, &apidev_fops);
4142         if (apidev_major < 0) {
4143                 printk(KERN_WARNING "qla2xxx: Unable to register char device "
4144                     "%s\n", QLA2XXX_APIDEV);
4145         }
4146
4147         qla2xxx_transport_vport_template =
4148             fc_attach_transport(&qla2xxx_transport_vport_functions);
4149         if (!qla2xxx_transport_vport_template) {
4150                 kmem_cache_destroy(srb_cachep);
4151                 fc_release_transport(qla2xxx_transport_template);
4152                 return -ENODEV;
4153         }
4154
4155         printk(KERN_INFO "QLogic Fibre Channel HBA Driver: %s\n",
4156             qla2x00_version_str);
4157         ret = pci_register_driver(&qla2xxx_pci_driver);
4158         if (ret) {
4159                 kmem_cache_destroy(srb_cachep);
4160                 fc_release_transport(qla2xxx_transport_template);
4161                 fc_release_transport(qla2xxx_transport_vport_template);
4162         }
4163         return ret;
4164 }
4165
4166 /**
4167  * qla2x00_module_exit - Module cleanup.
4168  **/
4169 static void __exit
4170 qla2x00_module_exit(void)
4171 {
4172         unregister_chrdev(apidev_major, QLA2XXX_APIDEV);
4173         pci_unregister_driver(&qla2xxx_pci_driver);
4174         qla2x00_release_firmware();
4175         kmem_cache_destroy(srb_cachep);
4176         if (ctx_cachep)
4177                 kmem_cache_destroy(ctx_cachep);
4178         fc_release_transport(qla2xxx_transport_template);
4179         fc_release_transport(qla2xxx_transport_vport_template);
4180 }
4181
4182 module_init(qla2x00_module_init);
4183 module_exit(qla2x00_module_exit);
4184
4185 MODULE_AUTHOR("QLogic Corporation");
4186 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
4187 MODULE_LICENSE("GPL");
4188 MODULE_VERSION(QLA2XXX_VERSION);
4189 MODULE_FIRMWARE(FW_FILE_ISP21XX);
4190 MODULE_FIRMWARE(FW_FILE_ISP22XX);
4191 MODULE_FIRMWARE(FW_FILE_ISP2300);
4192 MODULE_FIRMWARE(FW_FILE_ISP2322);
4193 MODULE_FIRMWARE(FW_FILE_ISP24XX);
4194 MODULE_FIRMWARE(FW_FILE_ISP25XX);