drivers/scsi/qla2xxx/qla_os.c

   1 /*
   2  * QLogic Fibre Channel HBA Driver
   3  * Copyright (c)  2003-2008 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
  15 #include <scsi/scsi_tcq.h>
  16 #include <scsi/scsicam.h>
  17 #include <scsi/scsi_transport.h>
  18 #include <scsi/scsi_transport_fc.h>
  19
  20 /*
  21  * Driver version
  22  */
  23 char qla2x00_version_str[40];
  24
  25 /*
  26  * SRB allocation cache
  27  */
  28 static struct kmem_cache *srb_cachep;
  29
  30 int ql2xlogintimeout = 20;
  31 module_param(ql2xlogintimeout, int, S_IRUGO|S_IRUSR);
  32 MODULE_PARM_DESC(ql2xlogintimeout,
  33                 "Login timeout value in seconds.");
  34
  35 int qlport_down_retry;
  36 module_param(qlport_down_retry, int, S_IRUGO|S_IRUSR);
  37 MODULE_PARM_DESC(qlport_down_retry,
  38                 "Maximum number of command retries to a port that returns "
  39                 "a PORT-DOWN status.");
  40
  41 int ql2xplogiabsentdevice;
  42 module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
  43 MODULE_PARM_DESC(ql2xplogiabsentdevice,
  44                 "Option to enable PLOGI to devices that are not present after "
  45                 "a Fabric scan.  This is needed for several broken switches. "
  46                 "Default is 0 - no PLOGI. 1 - perfom PLOGI.");
  47
  48 int ql2xloginretrycount = 0;
  49 module_param(ql2xloginretrycount, int, S_IRUGO|S_IRUSR);
  50 MODULE_PARM_DESC(ql2xloginretrycount,
  51                 "Specify an alternate value for the NVRAM login retry count.");
  52
  53 int ql2xallocfwdump = 1;
  54 module_param(ql2xallocfwdump, int, S_IRUGO|S_IRUSR);
  55 MODULE_PARM_DESC(ql2xallocfwdump,
  56                 "Option to enable allocation of memory for a firmware dump "
  57                 "during HBA initialization.  Memory allocation requirements "
  58                 "vary by ISP type.  Default is 1 - allocate memory.");
  59
  60 int ql2xextended_error_logging;
  61 module_param(ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
  62 MODULE_PARM_DESC(ql2xextended_error_logging,
  63                 "Option to enable extended error logging, "
  64                 "Default is 0 - no logging. 1 - log errors.");
  65
  66 static void qla2x00_free_device(scsi_qla_host_t *);
  67
  68 int ql2xfdmienable=1;
  69 module_param(ql2xfdmienable, int, S_IRUGO|S_IRUSR);
  70 MODULE_PARM_DESC(ql2xfdmienable,
  71                 "Enables FDMI registratons "
  72                 "Default is 0 - no FDMI. 1 - perfom FDMI.");
  73
  74 #define MAX_Q_DEPTH    32
  75 static int ql2xmaxqdepth = MAX_Q_DEPTH;
  76 module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
  77 MODULE_PARM_DESC(ql2xmaxqdepth,
  78                 "Maximum queue depth to report for target devices.");
  79
  80 int ql2xqfullrampup = 120;
  81 module_param(ql2xqfullrampup, int, S_IRUGO|S_IWUSR);
  82 MODULE_PARM_DESC(ql2xqfullrampup,
  83                 "Number of seconds to wait to begin to ramp-up the queue "
  84                 "depth for a device after a queue-full condition has been "
  85                 "detected.  Default is 120 seconds.");
  86
  87 int ql2xiidmaenable=1;
  88 module_param(ql2xiidmaenable, int, S_IRUGO|S_IRUSR);
  89 MODULE_PARM_DESC(ql2xiidmaenable,
  90                 "Enables iIDMA settings "
  91                 "Default is 1 - perform iIDMA. 0 - no iIDMA.");
  92
  93 int ql2xmaxqueues = 1;
  94 module_param(ql2xmaxqueues, int, S_IRUGO|S_IRUSR);
  95 MODULE_PARM_DESC(ql2xmaxqueues,
  96                 "Enables MQ settings "
  97                 "Default is 1 for single queue. Set it to number \
  98                         of queues in MQ mode.");
  99 /*
 100  * SCSI host template entry points
 101  */
 102 static int qla2xxx_slave_configure(struct scsi_device * device);
 103 static int qla2xxx_slave_alloc(struct scsi_device *);
 104 static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
 105 static void qla2xxx_scan_start(struct Scsi_Host *);
 106 static void qla2xxx_slave_destroy(struct scsi_device *);
 107 static int qla2x00_queuecommand(struct scsi_cmnd *cmd,
 108                 void (*fn)(struct scsi_cmnd *));
 109 static int qla24xx_queuecommand(struct scsi_cmnd *cmd,
 110                 void (*fn)(struct scsi_cmnd *));
 111 static int qla2xxx_eh_abort(struct scsi_cmnd *);
 112 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
 113 static int qla2xxx_eh_target_reset(struct scsi_cmnd *);
 114 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
 115 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
 116
 117 static int qla2x00_change_queue_depth(struct scsi_device *, int);
 118 static int qla2x00_change_queue_type(struct scsi_device *, int);
 119
 120 static struct scsi_host_template qla2x00_driver_template = {
 121         .module                 = THIS_MODULE,
 122         .name                   = QLA2XXX_DRIVER_NAME,
 123         .queuecommand           = qla2x00_queuecommand,
 124
 125         .eh_abort_handler       = qla2xxx_eh_abort,
 126         .eh_device_reset_handler = qla2xxx_eh_device_reset,
 127         .eh_target_reset_handler = qla2xxx_eh_target_reset,
 128         .eh_bus_reset_handler   = qla2xxx_eh_bus_reset,
 129         .eh_host_reset_handler  = qla2xxx_eh_host_reset,
 130
 131         .slave_configure        = qla2xxx_slave_configure,
 132
 133         .slave_alloc            = qla2xxx_slave_alloc,
 134         .slave_destroy          = qla2xxx_slave_destroy,
 135         .scan_finished          = qla2xxx_scan_finished,
 136         .scan_start             = qla2xxx_scan_start,
 137         .change_queue_depth     = qla2x00_change_queue_depth,
 138         .change_queue_type      = qla2x00_change_queue_type,
 139         .this_id                = -1,
 140         .cmd_per_lun            = 3,
 141         .use_clustering         = ENABLE_CLUSTERING,
 142         .sg_tablesize           = SG_ALL,
 143
 144         /*
 145          * The RISC allows for each command to transfer (2^32-1) bytes of data,
 146          * which equates to 0x800000 sectors.
 147          */
 148         .max_sectors            = 0xFFFF,
 149         .shost_attrs            = qla2x00_host_attrs,
 150 };
 151
 152 struct scsi_host_template qla24xx_driver_template = {
 153         .module                 = THIS_MODULE,
 154         .name                   = QLA2XXX_DRIVER_NAME,
 155         .queuecommand           = qla24xx_queuecommand,
 156
 157         .eh_abort_handler       = qla2xxx_eh_abort,
 158         .eh_device_reset_handler = qla2xxx_eh_device_reset,
 159         .eh_target_reset_handler = qla2xxx_eh_target_reset,
 160         .eh_bus_reset_handler   = qla2xxx_eh_bus_reset,
 161         .eh_host_reset_handler  = qla2xxx_eh_host_reset,
 162
 163         .slave_configure        = qla2xxx_slave_configure,
 164
 165         .slave_alloc            = qla2xxx_slave_alloc,
 166         .slave_destroy          = qla2xxx_slave_destroy,
 167         .scan_finished          = qla2xxx_scan_finished,
 168         .scan_start             = qla2xxx_scan_start,
 169         .change_queue_depth     = qla2x00_change_queue_depth,
 170         .change_queue_type      = qla2x00_change_queue_type,
 171         .this_id                = -1,
 172         .cmd_per_lun            = 3,
 173         .use_clustering         = ENABLE_CLUSTERING,
 174         .sg_tablesize           = SG_ALL,
 175
 176         .max_sectors            = 0xFFFF,
 177         .shost_attrs            = qla2x00_host_attrs,
 178 };
 179
 180 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
 181 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
 182
 183 /* TODO Convert to inlines
 184  *
 185  * Timer routines
 186  */
 187
 188 __inline__ void
 189 qla2x00_start_timer(scsi_qla_host_t *vha, void *func, unsigned long interval)
 190 {
 191         init_timer(&vha->timer);
 192         vha->timer.expires = jiffies + interval * HZ;
 193         vha->timer.data = (unsigned long)vha;
 194         vha->timer.function = (void (*)(unsigned long))func;
 195         add_timer(&vha->timer);
 196         vha->timer_active = 1;
 197 }
 198
 199 static inline void
 200 qla2x00_restart_timer(scsi_qla_host_t *vha, unsigned long interval)
 201 {
 202         mod_timer(&vha->timer, jiffies + interval * HZ);
 203 }
 204
 205 static __inline__ void
 206 qla2x00_stop_timer(scsi_qla_host_t *vha)
 207 {
 208         del_timer_sync(&vha->timer);
 209         vha->timer_active = 0;
 210 }
 211
 212 static int qla2x00_do_dpc(void *data);
 213
 214 static void qla2x00_rst_aen(scsi_qla_host_t *);
 215
 216 static int qla2x00_mem_alloc(struct qla_hw_data *, uint16_t, uint16_t,
 217         struct req_que **, struct rsp_que **);
 218 static void qla2x00_mem_free(struct qla_hw_data *);
 219 static void qla2x00_sp_free_dma(srb_t *);
 220
 221 /* -------------------------------------------------------------------------- */
 222 static int qla2x00_alloc_queues(struct qla_hw_data *ha)
 223 {
 224         ha->req_q_map = kzalloc(sizeof(struct req_que *) * ha->max_queues,
 225                                 GFP_KERNEL);
 226         if (!ha->req_q_map) {
 227                 qla_printk(KERN_WARNING, ha,
 228                         "Unable to allocate memory for request queue ptrs\n");
 229                 goto fail_req_map;
 230         }
 231
 232         ha->rsp_q_map = kzalloc(sizeof(struct rsp_que *) * ha->max_queues,
 233                                 GFP_KERNEL);
 234         if (!ha->rsp_q_map) {
 235                 qla_printk(KERN_WARNING, ha,
 236                         "Unable to allocate memory for response queue ptrs\n");
 237                 goto fail_rsp_map;
 238         }
 239         set_bit(0, ha->rsp_qid_map);
 240         set_bit(0, ha->req_qid_map);
 241         return 1;
 242
 243 fail_rsp_map:
 244         kfree(ha->req_q_map);
 245         ha->req_q_map = NULL;
 246 fail_req_map:
 247         return -ENOMEM;
 248 }
 249
 250 static void qla2x00_free_que(struct qla_hw_data *ha, struct req_que *req,
 251         struct rsp_que *rsp)
 252 {
 253         if (rsp && rsp->ring)
 254                 dma_free_coherent(&ha->pdev->dev,
 255                 (rsp->length + 1) * sizeof(response_t),
 256                 rsp->ring, rsp->dma);
 257
 258         kfree(rsp);
 259         rsp = NULL;
 260         if (req && req->ring)
 261                 dma_free_coherent(&ha->pdev->dev,
 262                 (req->length + 1) * sizeof(request_t),
 263                 req->ring, req->dma);
 264
 265         kfree(req);
 266         req = NULL;
 267 }
 268
 269 static void qla2x00_free_queues(struct qla_hw_data *ha)
 270 {
 271         struct req_que *req;
 272         struct rsp_que *rsp;
 273         int cnt;
 274
 275         for (cnt = 0; cnt < ha->max_queues; cnt++) {
 276                 rsp = ha->rsp_q_map[cnt];
 277                 req = ha->req_q_map[cnt];
 278                 qla2x00_free_que(ha, req, rsp);
 279         }
 280         kfree(ha->rsp_q_map);
 281         ha->rsp_q_map = NULL;
 282
 283         kfree(ha->req_q_map);
 284         ha->req_q_map = NULL;
 285 }
 286
 287 static char *
 288 qla2x00_pci_info_str(struct scsi_qla_host *vha, char *str)
 289 {
 290         struct qla_hw_data *ha = vha->hw;
 291         static char *pci_bus_modes[] = {
 292                 "33", "66", "100", "133",
 293         };
 294         uint16_t pci_bus;
 295
 296         strcpy(str, "PCI");
 297         pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
 298         if (pci_bus) {
 299                 strcat(str, "-X (");
 300                 strcat(str, pci_bus_modes[pci_bus]);
 301         } else {
 302                 pci_bus = (ha->pci_attr & BIT_8) >> 8;
 303                 strcat(str, " (");
 304                 strcat(str, pci_bus_modes[pci_bus]);
 305         }
 306         strcat(str, " MHz)");
 307
 308         return (str);
 309 }
 310
 311 static char *
 312 qla24xx_pci_info_str(struct scsi_qla_host *vha, char *str)
 313 {
 314         static char *pci_bus_modes[] = { "33", "66", "100", "133", };
 315         struct qla_hw_data *ha = vha->hw;
 316         uint32_t pci_bus;
 317         int pcie_reg;
 318
 319         pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
 320         if (pcie_reg) {
 321                 char lwstr[6];
 322                 uint16_t pcie_lstat, lspeed, lwidth;
 323
 324                 pcie_reg += 0x12;
 325                 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
 326                 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
 327                 lwidth = (pcie_lstat &
 328                     (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
 329
 330                 strcpy(str, "PCIe (");
 331                 if (lspeed == 1)
 332                         strcat(str, "2.5GT/s ");
 333                 else if (lspeed == 2)
 334                         strcat(str, "5.0GT/s ");
 335                 else
 336                         strcat(str, "<unknown> ");
 337                 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
 338                 strcat(str, lwstr);
 339
 340                 return str;
 341         }
 342
 343         strcpy(str, "PCI");
 344         pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
 345         if (pci_bus == 0 || pci_bus == 8) {
 346                 strcat(str, " (");
 347                 strcat(str, pci_bus_modes[pci_bus >> 3]);
 348         } else {
 349                 strcat(str, "-X ");
 350                 if (pci_bus & BIT_2)
 351                         strcat(str, "Mode 2");
 352                 else
 353                         strcat(str, "Mode 1");
 354                 strcat(str, " (");
 355                 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
 356         }
 357         strcat(str, " MHz)");
 358
 359         return str;
 360 }
 361
 362 static char *
 363 qla2x00_fw_version_str(struct scsi_qla_host *vha, char *str)
 364 {
 365         char un_str[10];
 366         struct qla_hw_data *ha = vha->hw;
 367
 368         sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
 369             ha->fw_minor_version,
 370             ha->fw_subminor_version);
 371
 372         if (ha->fw_attributes & BIT_9) {
 373                 strcat(str, "FLX");
 374                 return (str);
 375         }
 376
 377         switch (ha->fw_attributes & 0xFF) {
 378         case 0x7:
 379                 strcat(str, "EF");
 380                 break;
 381         case 0x17:
 382                 strcat(str, "TP");
 383                 break;
 384         case 0x37:
 385                 strcat(str, "IP");
 386                 break;
 387         case 0x77:
 388                 strcat(str, "VI");
 389                 break;
 390         default:
 391                 sprintf(un_str, "(%x)", ha->fw_attributes);
 392                 strcat(str, un_str);
 393                 break;
 394         }
 395         if (ha->fw_attributes & 0x100)
 396                 strcat(str, "X");
 397
 398         return (str);
 399 }
 400
 401 static char *
 402 qla24xx_fw_version_str(struct scsi_qla_host *vha, char *str)
 403 {
 404         struct qla_hw_data *ha = vha->hw;
 405
 406         sprintf(str, "%d.%02d.%02d (%x)", ha->fw_major_version,
 407             ha->fw_minor_version, ha->fw_subminor_version, ha->fw_attributes);
 408         return str;
 409 }
 410
 411 static inline srb_t *
 412 qla2x00_get_new_sp(scsi_qla_host_t *vha, fc_port_t *fcport,
 413     struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 414 {
 415         srb_t *sp;
 416         struct qla_hw_data *ha = vha->hw;
 417
 418         sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
 419         if (!sp)
 420                 return sp;
 421
 422         sp->fcport = fcport;
 423         sp->cmd = cmd;
 424         sp->que = ha->req_q_map[0];
 425         sp->flags = 0;
 426         CMD_SP(cmd) = (void *)sp;
 427         cmd->scsi_done = done;
 428
 429         return sp;
 430 }
 431
 432 static int
 433 qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 434 {
 435         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 436         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 437         struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
 438         struct qla_hw_data *ha = vha->hw;
 439         srb_t *sp;
 440         int rval;
 441
 442         if (unlikely(pci_channel_offline(ha->pdev))) {
 443                 cmd->result = DID_REQUEUE << 16;
 444                 goto qc_fail_command;
 445         }
 446
 447         rval = fc_remote_port_chkready(rport);
 448         if (rval) {
 449                 cmd->result = rval;
 450                 goto qc_fail_command;
 451         }
 452
 453         /* Close window on fcport/rport state-transitioning. */
 454         if (fcport->drport)
 455                 goto qc_target_busy;
 456
 457         if (atomic_read(&fcport->state) != FCS_ONLINE) {
 458                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
 459                     atomic_read(&vha->loop_state) == LOOP_DEAD) {
 460                         cmd->result = DID_NO_CONNECT << 16;
 461                         goto qc_fail_command;
 462                 }
 463                 goto qc_target_busy;
 464         }
 465
 466         spin_unlock_irq(vha->host->host_lock);
 467
 468         sp = qla2x00_get_new_sp(vha, fcport, cmd, done);
 469         if (!sp)
 470                 goto qc_host_busy_lock;
 471
 472         rval = ha->isp_ops->start_scsi(sp);
 473         if (rval != QLA_SUCCESS)
 474                 goto qc_host_busy_free_sp;
 475
 476         spin_lock_irq(vha->host->host_lock);
 477
 478         return 0;
 479
 480 qc_host_busy_free_sp:
 481         qla2x00_sp_free_dma(sp);
 482         mempool_free(sp, ha->srb_mempool);
 483
 484 qc_host_busy_lock:
 485         spin_lock_irq(vha->host->host_lock);
 486         return SCSI_MLQUEUE_HOST_BUSY;
 487
 488 qc_target_busy:
 489         return SCSI_MLQUEUE_TARGET_BUSY;
 490
 491 qc_fail_command:
 492         done(cmd);
 493
 494         return 0;
 495 }
 496
 497
 498 static int
 499 qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 500 {
 501         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 502         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 503         struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
 504         struct qla_hw_data *ha = vha->hw;
 505         struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
 506         srb_t *sp;
 507         int rval;
 508
 509         if (unlikely(pci_channel_offline(ha->pdev))) {
 510                 cmd->result = DID_REQUEUE << 16;
 511                 goto qc24_fail_command;
 512         }
 513
 514         rval = fc_remote_port_chkready(rport);
 515         if (rval) {
 516                 cmd->result = rval;
 517                 goto qc24_fail_command;
 518         }
 519
 520         /* Close window on fcport/rport state-transitioning. */
 521         if (fcport->drport)
 522                 goto qc24_target_busy;
 523
 524         if (atomic_read(&fcport->state) != FCS_ONLINE) {
 525                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
 526                     atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
 527                         cmd->result = DID_NO_CONNECT << 16;
 528                         goto qc24_fail_command;
 529                 }
 530                 goto qc24_target_busy;
 531         }
 532
 533         spin_unlock_irq(vha->host->host_lock);
 534
 535         sp = qla2x00_get_new_sp(base_vha, fcport, cmd, done);
 536         if (!sp)
 537                 goto qc24_host_busy_lock;
 538
 539         rval = ha->isp_ops->start_scsi(sp);
 540         if (rval != QLA_SUCCESS)
 541                 goto qc24_host_busy_free_sp;
 542
 543         spin_lock_irq(vha->host->host_lock);
 544
 545         return 0;
 546
 547 qc24_host_busy_free_sp:
 548         qla2x00_sp_free_dma(sp);
 549         mempool_free(sp, ha->srb_mempool);
 550
 551 qc24_host_busy_lock:
 552         spin_lock_irq(vha->host->host_lock);
 553         return SCSI_MLQUEUE_HOST_BUSY;
 554
 555 qc24_target_busy:
 556         return SCSI_MLQUEUE_TARGET_BUSY;
 557
 558 qc24_fail_command:
 559         done(cmd);
 560
 561         return 0;
 562 }
 563
 564
 565 /*
 566  * qla2x00_eh_wait_on_command
 567  *    Waits for the command to be returned by the Firmware for some
 568  *    max time.
 569  *
 570  * Input:
 571  *    cmd = Scsi Command to wait on.
 572  *
 573  * Return:
 574  *    Not Found : 0
 575  *    Found : 1
 576  */
 577 static int
 578 qla2x00_eh_wait_on_command(struct scsi_cmnd *cmd)
 579 {
 580 #define ABORT_POLLING_PERIOD    1000
 581 #define ABORT_WAIT_ITER         ((10 * 1000) / (ABORT_POLLING_PERIOD))
 582         unsigned long wait_iter = ABORT_WAIT_ITER;
 583         int ret = QLA_SUCCESS;
 584
 585         while (CMD_SP(cmd)) {
 586                 msleep(ABORT_POLLING_PERIOD);
 587
 588                 if (--wait_iter)
 589                         break;
 590         }
 591         if (CMD_SP(cmd))
 592                 ret = QLA_FUNCTION_FAILED;
 593
 594         return ret;
 595 }
 596
 597 /*
 598  * qla2x00_wait_for_hba_online
 599  *    Wait till the HBA is online after going through
 600  *    <= MAX_RETRIES_OF_ISP_ABORT  or
 601  *    finally HBA is disabled ie marked offline
 602  *
 603  * Input:
 604  *     ha - pointer to host adapter structure
 605  *
 606  * Note:
 607  *    Does context switching-Release SPIN_LOCK
 608  *    (if any) before calling this routine.
 609  *
 610  * Return:
 611  *    Success (Adapter is online) : 0
 612  *    Failed  (Adapter is offline/disabled) : 1
 613  */
 614 int
 615 qla2x00_wait_for_hba_online(scsi_qla_host_t *vha)
 616 {
 617         int             return_status;
 618         unsigned long   wait_online;
 619         struct qla_hw_data *ha = vha->hw;
 620         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 621
 622         wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 623         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 624             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 625             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 626             ha->dpc_active) && time_before(jiffies, wait_online)) {
 627
 628                 msleep(1000);
 629         }
 630         if (base_vha->flags.online)
 631                 return_status = QLA_SUCCESS;
 632         else
 633                 return_status = QLA_FUNCTION_FAILED;
 634
 635         return (return_status);
 636 }
 637
 638 /*
 639  * qla2x00_wait_for_loop_ready
 640  *    Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
 641  *    to be in LOOP_READY state.
 642  * Input:
 643  *     ha - pointer to host adapter structure
 644  *
 645  * Note:
 646  *    Does context switching-Release SPIN_LOCK
 647  *    (if any) before calling this routine.
 648  *
 649  *
 650  * Return:
 651  *    Success (LOOP_READY) : 0
 652  *    Failed  (LOOP_NOT_READY) : 1
 653  */
 654 static inline int
 655 qla2x00_wait_for_loop_ready(scsi_qla_host_t *vha)
 656 {
 657         int      return_status = QLA_SUCCESS;
 658         unsigned long loop_timeout ;
 659         struct qla_hw_data *ha = vha->hw;
 660         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 661
 662         /* wait for 5 min at the max for loop to be ready */
 663         loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 664
 665         while ((!atomic_read(&base_vha->loop_down_timer) &&
 666             atomic_read(&base_vha->loop_state) == LOOP_DOWN) ||
 667             atomic_read(&base_vha->loop_state) != LOOP_READY) {
 668                 if (atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
 669                         return_status = QLA_FUNCTION_FAILED;
 670                         break;
 671                 }
 672                 msleep(1000);
 673                 if (time_after_eq(jiffies, loop_timeout)) {
 674                         return_status = QLA_FUNCTION_FAILED;
 675                         break;
 676                 }
 677         }
 678         return (return_status);
 679 }
 680
 681 void
 682 qla2x00_abort_fcport_cmds(fc_port_t *fcport)
 683 {
 684         int cnt, que, id;
 685         unsigned long flags;
 686         srb_t *sp;
 687         scsi_qla_host_t *vha = fcport->vha;
 688         struct qla_hw_data *ha = vha->hw;
 689         struct req_que *req;
 690
 691         spin_lock_irqsave(&ha->hardware_lock, flags);
 692         for (que = 0; que < QLA_MAX_HOST_QUES; que++) {
 693                 id = vha->req_ques[que];
 694                 req = ha->req_q_map[id];
 695                 if (!req)
 696                         continue;
 697                 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
 698                         sp = req->outstanding_cmds[cnt];
 699                         if (!sp)
 700                                 continue;
 701                         if (sp->fcport != fcport)
 702                                 continue;
 703
 704                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 705                         if (ha->isp_ops->abort_command(vha, sp, req)) {
 706                                 DEBUG2(qla_printk(KERN_WARNING, ha,
 707                                 "Abort failed --  %lx\n",
 708                                 sp->cmd->serial_number));
 709                         } else {
 710                                 if (qla2x00_eh_wait_on_command(sp->cmd) !=
 711                                         QLA_SUCCESS)
 712                                         DEBUG2(qla_printk(KERN_WARNING, ha,
 713                                         "Abort failed while waiting --  %lx\n",
 714                                         sp->cmd->serial_number));
 715                         }
 716                         spin_lock_irqsave(&ha->hardware_lock, flags);
 717                 }
 718         }
 719         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 720 }
 721
 722 static void
 723 qla2x00_block_error_handler(struct scsi_cmnd *cmnd)
 724 {
 725         struct Scsi_Host *shost = cmnd->device->host;
 726         struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
 727         unsigned long flags;
 728
 729         spin_lock_irqsave(shost->host_lock, flags);
 730         while (rport->port_state == FC_PORTSTATE_BLOCKED) {
 731                 spin_unlock_irqrestore(shost->host_lock, flags);
 732                 msleep(1000);
 733                 spin_lock_irqsave(shost->host_lock, flags);
 734         }
 735         spin_unlock_irqrestore(shost->host_lock, flags);
 736         return;
 737 }
 738
 739 /**************************************************************************
 740 * qla2xxx_eh_abort
 741 *
 742 * Description:
 743 *    The abort function will abort the specified command.
 744 *
 745 * Input:
 746 *    cmd = Linux SCSI command packet to be aborted.
 747 *
 748 * Returns:
 749 *    Either SUCCESS or FAILED.
 750 *
 751 * Note:
 752 *    Only return FAILED if command not returned by firmware.
 753 **************************************************************************/
 754 static int
 755 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
 756 {
 757         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 758         srb_t *sp;
 759         int ret, i;
 760         unsigned int id, lun;
 761         unsigned long serial;
 762         unsigned long flags;
 763         int wait = 0;
 764         struct qla_hw_data *ha = vha->hw;
 765         struct req_que *req;
 766         srb_t *spt;
 767
 768         qla2x00_block_error_handler(cmd);
 769
 770         if (!CMD_SP(cmd))
 771                 return SUCCESS;
 772
 773         ret = SUCCESS;
 774
 775         id = cmd->device->id;
 776         lun = cmd->device->lun;
 777         serial = cmd->serial_number;
 778         spt = (srb_t *) CMD_SP(cmd);
 779         if (!spt)
 780                 return SUCCESS;
 781         req = spt->que;
 782
 783         /* Check active list for command command. */
 784         spin_lock_irqsave(&ha->hardware_lock, flags);
 785         for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
 786                 sp = req->outstanding_cmds[i];
 787
 788                 if (sp == NULL)
 789                         continue;
 790
 791                 if (sp->cmd != cmd)
 792                         continue;
 793
 794                 DEBUG2(printk("%s(%ld): aborting sp %p from RISC."
 795                 " pid=%ld.\n", __func__, vha->host_no, sp, serial));
 796
 797                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 798                 if (ha->isp_ops->abort_command(vha, sp, req)) {
 799                         DEBUG2(printk("%s(%ld): abort_command "
 800                         "mbx failed.\n", __func__, vha->host_no));
 801                         ret = FAILED;
 802                 } else {
 803                         DEBUG3(printk("%s(%ld): abort_command "
 804                         "mbx success.\n", __func__, vha->host_no));
 805                         wait = 1;
 806                 }
 807                 spin_lock_irqsave(&ha->hardware_lock, flags);
 808                 break;
 809         }
 810         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 811
 812         /* Wait for the command to be returned. */
 813         if (wait) {
 814                 if (qla2x00_eh_wait_on_command(cmd) != QLA_SUCCESS) {
 815                         qla_printk(KERN_ERR, ha,
 816                             "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
 817                             "%x.\n", vha->host_no, id, lun, serial, ret);
 818                         ret = FAILED;
 819                 }
 820         }
 821
 822         qla_printk(KERN_INFO, ha,
 823             "scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n",
 824             vha->host_no, id, lun, wait, serial, ret);
 825
 826         return ret;
 827 }
 828
 829 enum nexus_wait_type {
 830         WAIT_HOST = 0,
 831         WAIT_TARGET,
 832         WAIT_LUN,
 833 };
 834
 835 static int
 836 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *vha, unsigned int t,
 837         unsigned int l, srb_t *sp, enum nexus_wait_type type)
 838 {
 839         int cnt, match, status;
 840         unsigned long flags;
 841         struct qla_hw_data *ha = vha->hw;
 842         struct req_que *req;
 843
 844         status = QLA_SUCCESS;
 845         if (!sp)
 846                 return status;
 847
 848         spin_lock_irqsave(&ha->hardware_lock, flags);
 849         req = sp->que;
 850         for (cnt = 1; status == QLA_SUCCESS &&
 851                 cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
 852                 sp = req->outstanding_cmds[cnt];
 853                 if (!sp)
 854                         continue;
 855
 856                 if (vha->vp_idx != sp->fcport->vha->vp_idx)
 857                         continue;
 858                 match = 0;
 859                 switch (type) {
 860                 case WAIT_HOST:
 861                         match = 1;
 862                         break;
 863                 case WAIT_TARGET:
 864                         match = sp->cmd->device->id == t;
 865                         break;
 866                 case WAIT_LUN:
 867                         match = (sp->cmd->device->id == t &&
 868                                 sp->cmd->device->lun == l);
 869                         break;
 870                 }
 871                 if (!match)
 872                         continue;
 873
 874                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 875                 status = qla2x00_eh_wait_on_command(sp->cmd);
 876                 spin_lock_irqsave(&ha->hardware_lock, flags);
 877         }
 878         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 879
 880         return status;
 881 }
 882
 883 static char *reset_errors[] = {
 884         "HBA not online",
 885         "HBA not ready",
 886         "Task management failed",
 887         "Waiting for command completions",
 888 };
 889
 890 static int
 891 __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
 892     struct scsi_cmnd *cmd, int (*do_reset)(struct fc_port *, unsigned int))
 893 {
 894         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 895         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 896         int err;
 897
 898         qla2x00_block_error_handler(cmd);
 899
 900         if (!fcport)
 901                 return FAILED;
 902
 903         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET ISSUED.\n",
 904             vha->host_no, cmd->device->id, cmd->device->lun, name);
 905
 906         err = 0;
 907         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
 908                 goto eh_reset_failed;
 909         err = 1;
 910         if (qla2x00_wait_for_loop_ready(vha) != QLA_SUCCESS)
 911                 goto eh_reset_failed;
 912         err = 2;
 913         if (do_reset(fcport, cmd->device->lun) != QLA_SUCCESS)
 914                 goto eh_reset_failed;
 915         err = 3;
 916         if (qla2x00_eh_wait_for_pending_commands(vha, cmd->device->id,
 917             cmd->device->lun, (srb_t *) CMD_SP(cmd), type) != QLA_SUCCESS)
 918                 goto eh_reset_failed;
 919
 920         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET SUCCEEDED.\n",
 921             vha->host_no, cmd->device->id, cmd->device->lun, name);
 922
 923         return SUCCESS;
 924
 925  eh_reset_failed:
 926         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET FAILED: %s.\n"
 927             , vha->host_no, cmd->device->id, cmd->device->lun, name,
 928             reset_errors[err]);
 929         return FAILED;
 930 }
 931
 932 static int
 933 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
 934 {
 935         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 936         struct qla_hw_data *ha = vha->hw;
 937
 938         return __qla2xxx_eh_generic_reset("DEVICE", WAIT_LUN, cmd,
 939             ha->isp_ops->lun_reset);
 940 }
 941
 942 static int
 943 qla2xxx_eh_target_reset(struct scsi_cmnd *cmd)
 944 {
 945         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 946         struct qla_hw_data *ha = vha->hw;
 947
 948         return __qla2xxx_eh_generic_reset("TARGET", WAIT_TARGET, cmd,
 949             ha->isp_ops->target_reset);
 950 }
 951
 952 /**************************************************************************
 953 * qla2xxx_eh_bus_reset
 954 *
 955 * Description:
 956 *    The bus reset function will reset the bus and abort any executing
 957 *    commands.
 958 *
 959 * Input:
 960 *    cmd = Linux SCSI command packet of the command that cause the
 961 *          bus reset.
 962 *
 963 * Returns:
 964 *    SUCCESS/FAILURE (defined as macro in scsi.h).
 965 *
 966 **************************************************************************/
 967 static int
 968 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
 969 {
 970         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 971         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 972         int ret = FAILED;
 973         unsigned int id, lun;
 974         unsigned long serial;
 975         srb_t *sp = (srb_t *) CMD_SP(cmd);
 976
 977         qla2x00_block_error_handler(cmd);
 978
 979         id = cmd->device->id;
 980         lun = cmd->device->lun;
 981         serial = cmd->serial_number;
 982
 983         if (!fcport)
 984                 return ret;
 985
 986         qla_printk(KERN_INFO, vha->hw,
 987             "scsi(%ld:%d:%d): BUS RESET ISSUED.\n", vha->host_no, id, lun);
 988
 989         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
 990                 DEBUG2(printk("%s failed:board disabled\n",__func__));
 991                 goto eh_bus_reset_done;
 992         }
 993
 994         if (qla2x00_wait_for_loop_ready(vha) == QLA_SUCCESS) {
 995                 if (qla2x00_loop_reset(vha) == QLA_SUCCESS)
 996                         ret = SUCCESS;
 997         }
 998         if (ret == FAILED)
 999                 goto eh_bus_reset_done;
1000
1001         /* Flush outstanding commands. */
1002         if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, sp, WAIT_HOST) !=
1003             QLA_SUCCESS)
1004                 ret = FAILED;
1005
1006 eh_bus_reset_done:
1007         qla_printk(KERN_INFO, vha->hw, "%s: reset %s\n", __func__,
1008             (ret == FAILED) ? "failed" : "succeded");
1009
1010         return ret;
1011 }
1012
1013 /**************************************************************************
1014 * qla2xxx_eh_host_reset
1015 *
1016 * Description:
1017 *    The reset function will reset the Adapter.
1018 *
1019 * Input:
1020 *      cmd = Linux SCSI command packet of the command that cause the
1021 *            adapter reset.
1022 *
1023 * Returns:
1024 *      Either SUCCESS or FAILED.
1025 *
1026 * Note:
1027 **************************************************************************/
1028 static int
1029 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
1030 {
1031         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1032         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1033         struct qla_hw_data *ha = vha->hw;
1034         int ret = FAILED;
1035         unsigned int id, lun;
1036         unsigned long serial;
1037         srb_t *sp = (srb_t *) CMD_SP(cmd);
1038         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1039
1040         qla2x00_block_error_handler(cmd);
1041
1042         id = cmd->device->id;
1043         lun = cmd->device->lun;
1044         serial = cmd->serial_number;
1045
1046         if (!fcport)
1047                 return ret;
1048
1049         qla_printk(KERN_INFO, ha,
1050             "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", vha->host_no, id, lun);
1051
1052         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
1053                 goto eh_host_reset_lock;
1054
1055         /*
1056          * Fixme-may be dpc thread is active and processing
1057          * loop_resync,so wait a while for it to
1058          * be completed and then issue big hammer.Otherwise
1059          * it may cause I/O failure as big hammer marks the
1060          * devices as lost kicking of the port_down_timer
1061          * while dpc is stuck for the mailbox to complete.
1062          */
1063         qla2x00_wait_for_loop_ready(vha);
1064         if (vha != base_vha) {
1065                 if (qla2x00_vp_abort_isp(vha))
1066                         goto eh_host_reset_lock;
1067         } else {
1068                 set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1069                 if (qla2x00_abort_isp(base_vha)) {
1070                         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1071                         /* failed. schedule dpc to try */
1072                         set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags);
1073
1074                         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
1075                                 goto eh_host_reset_lock;
1076                 }
1077                 clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1078         }
1079
1080         /* Waiting for command to be returned to OS.*/
1081         if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, sp, WAIT_HOST) ==
1082                 QLA_SUCCESS)
1083                 ret = SUCCESS;
1084
1085 eh_host_reset_lock:
1086         qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
1087             (ret == FAILED) ? "failed" : "succeded");
1088
1089         return ret;
1090 }
1091
1092 /*
1093 * qla2x00_loop_reset
1094 *      Issue loop reset.
1095 *
1096 * Input:
1097 *      ha = adapter block pointer.
1098 *
1099 * Returns:
1100 *      0 = success
1101 */
1102 int
1103 qla2x00_loop_reset(scsi_qla_host_t *vha)
1104 {
1105         int ret;
1106         struct fc_port *fcport;
1107         struct qla_hw_data *ha = vha->hw;
1108
1109         if (ha->flags.enable_lip_full_login && !vha->vp_idx) {
1110                 ret = qla2x00_full_login_lip(vha);
1111                 if (ret != QLA_SUCCESS) {
1112                         DEBUG2_3(printk("%s(%ld): failed: "
1113                             "full_login_lip=%d.\n", __func__, vha->host_no,
1114                             ret));
1115                 }
1116                 atomic_set(&vha->loop_state, LOOP_DOWN);
1117                 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1118                 qla2x00_mark_all_devices_lost(vha, 0);
1119                 qla2x00_wait_for_loop_ready(vha);
1120         }
1121
1122         if (ha->flags.enable_lip_reset && !vha->vp_idx) {
1123                 ret = qla2x00_lip_reset(vha);
1124                 if (ret != QLA_SUCCESS) {
1125                         DEBUG2_3(printk("%s(%ld): failed: "
1126                             "lip_reset=%d.\n", __func__, vha->host_no, ret));
1127                 } else
1128                         qla2x00_wait_for_loop_ready(vha);
1129         }
1130
1131         if (ha->flags.enable_target_reset) {
1132                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
1133                         if (fcport->port_type != FCT_TARGET)
1134                                 continue;
1135
1136                         ret = ha->isp_ops->target_reset(fcport, 0);
1137                         if (ret != QLA_SUCCESS) {
1138                                 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1139                                     "target_reset=%d d_id=%x.\n", __func__,
1140                                     vha->host_no, ret, fcport->d_id.b24));
1141                         }
1142                 }
1143         }
1144         /* Issue marker command only when we are going to start the I/O */
1145         vha->marker_needed = 1;
1146
1147         return QLA_SUCCESS;
1148 }
1149
1150 void
1151 qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res)
1152 {
1153         int que, cnt;
1154         unsigned long flags;
1155         srb_t *sp;
1156         struct qla_hw_data *ha = vha->hw;
1157         struct req_que *req;
1158
1159         spin_lock_irqsave(&ha->hardware_lock, flags);
1160         for (que = 0; que < ha->max_queues; que++) {
1161                 req = ha->req_q_map[que];
1162                 if (!req)
1163                         continue;
1164                 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
1165                         sp = req->outstanding_cmds[cnt];
1166                         if (sp && sp->fcport->vha == vha) {
1167                                 req->outstanding_cmds[cnt] = NULL;
1168                                 sp->cmd->result = res;
1169                                 qla2x00_sp_compl(ha, sp);
1170                         }
1171                 }
1172         }
1173         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1174 }
1175
1176 static int
1177 qla2xxx_slave_alloc(struct scsi_device *sdev)
1178 {
1179         struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1180
1181         if (!rport || fc_remote_port_chkready(rport))
1182                 return -ENXIO;
1183
1184         sdev->hostdata = *(fc_port_t **)rport->dd_data;
1185
1186         return 0;
1187 }
1188
1189 static int
1190 qla2xxx_slave_configure(struct scsi_device *sdev)
1191 {
1192         scsi_qla_host_t *vha = shost_priv(sdev->host);
1193         struct qla_hw_data *ha = vha->hw;
1194         struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1195         struct req_que *req = ha->req_q_map[vha->req_ques[0]];
1196
1197         if (sdev->tagged_supported)
1198                 scsi_activate_tcq(sdev, req->max_q_depth);
1199         else
1200                 scsi_deactivate_tcq(sdev, req->max_q_depth);
1201
1202         rport->dev_loss_tmo = ha->port_down_retry_count;
1203
1204         return 0;
1205 }
1206
1207 static void
1208 qla2xxx_slave_destroy(struct scsi_device *sdev)
1209 {
1210         sdev->hostdata = NULL;
1211 }
1212
1213 static int
1214 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1215 {
1216         scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1217         return sdev->queue_depth;
1218 }
1219
1220 static int
1221 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1222 {
1223         if (sdev->tagged_supported) {
1224                 scsi_set_tag_type(sdev, tag_type);
1225                 if (tag_type)
1226                         scsi_activate_tcq(sdev, sdev->queue_depth);
1227                 else
1228                         scsi_deactivate_tcq(sdev, sdev->queue_depth);
1229         } else
1230                 tag_type = 0;
1231
1232         return tag_type;
1233 }
1234
1235 /**
1236  * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1237  * @ha: HA context
1238  *
1239  * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1240  * supported addressing method.
1241  */
1242 static void
1243 qla2x00_config_dma_addressing(struct qla_hw_data *ha)
1244 {
1245         /* Assume a 32bit DMA mask. */
1246         ha->flags.enable_64bit_addressing = 0;
1247
1248         if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1249                 /* Any upper-dword bits set? */
1250                 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1251                     !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1252                         /* Ok, a 64bit DMA mask is applicable. */
1253                         ha->flags.enable_64bit_addressing = 1;
1254                         ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1255                         ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1256                         return;
1257                 }
1258         }
1259
1260         dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1261         pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
1262 }
1263
1264 static void
1265 qla2x00_enable_intrs(struct qla_hw_data *ha)
1266 {
1267         unsigned long flags = 0;
1268         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1269
1270         spin_lock_irqsave(&ha->hardware_lock, flags);
1271         ha->interrupts_on = 1;
1272         /* enable risc and host interrupts */
1273         WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1274         RD_REG_WORD(&reg->ictrl);
1275         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1276
1277 }
1278
1279 static void
1280 qla2x00_disable_intrs(struct qla_hw_data *ha)
1281 {
1282         unsigned long flags = 0;
1283         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1284
1285         spin_lock_irqsave(&ha->hardware_lock, flags);
1286         ha->interrupts_on = 0;
1287         /* disable risc and host interrupts */
1288         WRT_REG_WORD(&reg->ictrl, 0);
1289         RD_REG_WORD(&reg->ictrl);
1290         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1291 }
1292
1293 static void
1294 qla24xx_enable_intrs(struct qla_hw_data *ha)
1295 {
1296         unsigned long flags = 0;
1297         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1298
1299         spin_lock_irqsave(&ha->hardware_lock, flags);
1300         ha->interrupts_on = 1;
1301         WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1302         RD_REG_DWORD(&reg->ictrl);
1303         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1304 }
1305
1306 static void
1307 qla24xx_disable_intrs(struct qla_hw_data *ha)
1308 {
1309         unsigned long flags = 0;
1310         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1311
1312         if (IS_NOPOLLING_TYPE(ha))
1313                 return;
1314         spin_lock_irqsave(&ha->hardware_lock, flags);
1315         ha->interrupts_on = 0;
1316         WRT_REG_DWORD(&reg->ictrl, 0);
1317         RD_REG_DWORD(&reg->ictrl);
1318         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1319 }
1320
1321 static struct isp_operations qla2100_isp_ops = {
1322         .pci_config             = qla2100_pci_config,
1323         .reset_chip             = qla2x00_reset_chip,
1324         .chip_diag              = qla2x00_chip_diag,
1325         .config_rings           = qla2x00_config_rings,
1326         .reset_adapter          = qla2x00_reset_adapter,
1327         .nvram_config           = qla2x00_nvram_config,
1328         .update_fw_options      = qla2x00_update_fw_options,
1329         .load_risc              = qla2x00_load_risc,
1330         .pci_info_str           = qla2x00_pci_info_str,
1331         .fw_version_str         = qla2x00_fw_version_str,
1332         .intr_handler           = qla2100_intr_handler,
1333         .enable_intrs           = qla2x00_enable_intrs,
1334         .disable_intrs          = qla2x00_disable_intrs,
1335         .abort_command          = qla2x00_abort_command,
1336         .target_reset           = qla2x00_abort_target,
1337         .lun_reset              = qla2x00_lun_reset,
1338         .fabric_login           = qla2x00_login_fabric,
1339         .fabric_logout          = qla2x00_fabric_logout,
1340         .calc_req_entries       = qla2x00_calc_iocbs_32,
1341         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1342         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1343         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1344         .read_nvram             = qla2x00_read_nvram_data,
1345         .write_nvram            = qla2x00_write_nvram_data,
1346         .fw_dump                = qla2100_fw_dump,
1347         .beacon_on              = NULL,
1348         .beacon_off             = NULL,
1349         .beacon_blink           = NULL,
1350         .read_optrom            = qla2x00_read_optrom_data,
1351         .write_optrom           = qla2x00_write_optrom_data,
1352         .get_flash_version      = qla2x00_get_flash_version,
1353         .start_scsi             = qla2x00_start_scsi,
1354         .wrt_req_reg            = NULL,
1355         .wrt_rsp_reg            = NULL,
1356         .rd_req_reg             = NULL,
1357 };
1358
1359 static struct isp_operations qla2300_isp_ops = {
1360         .pci_config             = qla2300_pci_config,
1361         .reset_chip             = qla2x00_reset_chip,
1362         .chip_diag              = qla2x00_chip_diag,
1363         .config_rings           = qla2x00_config_rings,
1364         .reset_adapter          = qla2x00_reset_adapter,
1365         .nvram_config           = qla2x00_nvram_config,
1366         .update_fw_options      = qla2x00_update_fw_options,
1367         .load_risc              = qla2x00_load_risc,
1368         .pci_info_str           = qla2x00_pci_info_str,
1369         .fw_version_str         = qla2x00_fw_version_str,
1370         .intr_handler           = qla2300_intr_handler,
1371         .enable_intrs           = qla2x00_enable_intrs,
1372         .disable_intrs          = qla2x00_disable_intrs,
1373         .abort_command          = qla2x00_abort_command,
1374         .target_reset           = qla2x00_abort_target,
1375         .lun_reset              = qla2x00_lun_reset,
1376         .fabric_login           = qla2x00_login_fabric,
1377         .fabric_logout          = qla2x00_fabric_logout,
1378         .calc_req_entries       = qla2x00_calc_iocbs_32,
1379         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1380         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1381         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1382         .read_nvram             = qla2x00_read_nvram_data,
1383         .write_nvram            = qla2x00_write_nvram_data,
1384         .fw_dump                = qla2300_fw_dump,
1385         .beacon_on              = qla2x00_beacon_on,
1386         .beacon_off             = qla2x00_beacon_off,
1387         .beacon_blink           = qla2x00_beacon_blink,
1388         .read_optrom            = qla2x00_read_optrom_data,
1389         .write_optrom           = qla2x00_write_optrom_data,
1390         .get_flash_version      = qla2x00_get_flash_version,
1391         .start_scsi             = qla2x00_start_scsi,
1392         .wrt_req_reg            = NULL,
1393         .wrt_rsp_reg            = NULL,
1394         .rd_req_reg             = NULL,
1395 };
1396
1397 static struct isp_operations qla24xx_isp_ops = {
1398         .pci_config             = qla24xx_pci_config,
1399         .reset_chip             = qla24xx_reset_chip,
1400         .chip_diag              = qla24xx_chip_diag,
1401         .config_rings           = qla24xx_config_rings,
1402         .reset_adapter          = qla24xx_reset_adapter,
1403         .nvram_config           = qla24xx_nvram_config,
1404         .update_fw_options      = qla24xx_update_fw_options,
1405         .load_risc              = qla24xx_load_risc,
1406         .pci_info_str           = qla24xx_pci_info_str,
1407         .fw_version_str         = qla24xx_fw_version_str,
1408         .intr_handler           = qla24xx_intr_handler,
1409         .enable_intrs           = qla24xx_enable_intrs,
1410         .disable_intrs          = qla24xx_disable_intrs,
1411         .abort_command          = qla24xx_abort_command,
1412         .target_reset           = qla24xx_abort_target,
1413         .lun_reset              = qla24xx_lun_reset,
1414         .fabric_login           = qla24xx_login_fabric,
1415         .fabric_logout          = qla24xx_fabric_logout,
1416         .calc_req_entries       = NULL,
1417         .build_iocbs            = NULL,
1418         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1419         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1420         .read_nvram             = qla24xx_read_nvram_data,
1421         .write_nvram            = qla24xx_write_nvram_data,
1422         .fw_dump                = qla24xx_fw_dump,
1423         .beacon_on              = qla24xx_beacon_on,
1424         .beacon_off             = qla24xx_beacon_off,
1425         .beacon_blink           = qla24xx_beacon_blink,
1426         .read_optrom            = qla24xx_read_optrom_data,
1427         .write_optrom           = qla24xx_write_optrom_data,
1428         .get_flash_version      = qla24xx_get_flash_version,
1429         .start_scsi             = qla24xx_start_scsi,
1430         .wrt_req_reg            = qla24xx_wrt_req_reg,
1431         .wrt_rsp_reg            = qla24xx_wrt_rsp_reg,
1432         .rd_req_reg             = qla24xx_rd_req_reg,
1433 };
1434
1435 static struct isp_operations qla25xx_isp_ops = {
1436         .pci_config             = qla25xx_pci_config,
1437         .reset_chip             = qla24xx_reset_chip,
1438         .chip_diag              = qla24xx_chip_diag,
1439         .config_rings           = qla24xx_config_rings,
1440         .reset_adapter          = qla24xx_reset_adapter,
1441         .nvram_config           = qla24xx_nvram_config,
1442         .update_fw_options      = qla24xx_update_fw_options,
1443         .load_risc              = qla24xx_load_risc,
1444         .pci_info_str           = qla24xx_pci_info_str,
1445         .fw_version_str         = qla24xx_fw_version_str,
1446         .intr_handler           = qla24xx_intr_handler,
1447         .enable_intrs           = qla24xx_enable_intrs,
1448         .disable_intrs          = qla24xx_disable_intrs,
1449         .abort_command          = qla24xx_abort_command,
1450         .target_reset           = qla24xx_abort_target,
1451         .lun_reset              = qla24xx_lun_reset,
1452         .fabric_login           = qla24xx_login_fabric,
1453         .fabric_logout          = qla24xx_fabric_logout,
1454         .calc_req_entries       = NULL,
1455         .build_iocbs            = NULL,
1456         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1457         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1458         .read_nvram             = qla25xx_read_nvram_data,
1459         .write_nvram            = qla25xx_write_nvram_data,
1460         .fw_dump                = qla25xx_fw_dump,
1461         .beacon_on              = qla24xx_beacon_on,
1462         .beacon_off             = qla24xx_beacon_off,
1463         .beacon_blink           = qla24xx_beacon_blink,
1464         .read_optrom            = qla25xx_read_optrom_data,
1465         .write_optrom           = qla24xx_write_optrom_data,
1466         .get_flash_version      = qla24xx_get_flash_version,
1467         .start_scsi             = qla24xx_start_scsi,
1468         .wrt_req_reg            = qla24xx_wrt_req_reg,
1469         .wrt_rsp_reg            = qla24xx_wrt_rsp_reg,
1470         .rd_req_reg             = qla24xx_rd_req_reg,
1471 };
1472
1473 static struct isp_operations qla81xx_isp_ops = {
1474         .pci_config             = qla25xx_pci_config,
1475         .reset_chip             = qla24xx_reset_chip,
1476         .chip_diag              = qla24xx_chip_diag,
1477         .config_rings           = qla24xx_config_rings,
1478         .reset_adapter          = qla24xx_reset_adapter,
1479         .nvram_config           = qla81xx_nvram_config,
1480         .update_fw_options      = qla81xx_update_fw_options,
1481         .load_risc              = qla81xx_load_risc,
1482         .pci_info_str           = qla24xx_pci_info_str,
1483         .fw_version_str         = qla24xx_fw_version_str,
1484         .intr_handler           = qla24xx_intr_handler,
1485         .enable_intrs           = qla24xx_enable_intrs,
1486         .disable_intrs          = qla24xx_disable_intrs,
1487         .abort_command          = qla24xx_abort_command,
1488         .target_reset           = qla24xx_abort_target,
1489         .lun_reset              = qla24xx_lun_reset,
1490         .fabric_login           = qla24xx_login_fabric,
1491         .fabric_logout          = qla24xx_fabric_logout,
1492         .calc_req_entries       = NULL,
1493         .build_iocbs            = NULL,
1494         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1495         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1496         .read_nvram             = qla25xx_read_nvram_data,
1497         .write_nvram            = qla25xx_write_nvram_data,
1498         .fw_dump                = qla81xx_fw_dump,
1499         .beacon_on              = qla24xx_beacon_on,
1500         .beacon_off             = qla24xx_beacon_off,
1501         .beacon_blink           = qla24xx_beacon_blink,
1502         .read_optrom            = qla25xx_read_optrom_data,
1503         .write_optrom           = qla24xx_write_optrom_data,
1504         .get_flash_version      = qla24xx_get_flash_version,
1505         .start_scsi             = qla24xx_start_scsi,
1506         .wrt_req_reg            = qla24xx_wrt_req_reg,
1507         .wrt_rsp_reg            = qla24xx_wrt_rsp_reg,
1508         .rd_req_reg             = qla24xx_rd_req_reg,
1509 };
1510
1511 static inline void
1512 qla2x00_set_isp_flags(struct qla_hw_data *ha)
1513 {
1514         ha->device_type = DT_EXTENDED_IDS;
1515         switch (ha->pdev->device) {
1516         case PCI_DEVICE_ID_QLOGIC_ISP2100:
1517                 ha->device_type |= DT_ISP2100;
1518                 ha->device_type &= ~DT_EXTENDED_IDS;
1519                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1520                 break;
1521         case PCI_DEVICE_ID_QLOGIC_ISP2200:
1522                 ha->device_type |= DT_ISP2200;
1523                 ha->device_type &= ~DT_EXTENDED_IDS;
1524                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1525                 break;
1526         case PCI_DEVICE_ID_QLOGIC_ISP2300:
1527                 ha->device_type |= DT_ISP2300;
1528                 ha->device_type |= DT_ZIO_SUPPORTED;
1529                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1530                 break;
1531         case PCI_DEVICE_ID_QLOGIC_ISP2312:
1532                 ha->device_type |= DT_ISP2312;
1533                 ha->device_type |= DT_ZIO_SUPPORTED;
1534                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1535                 break;
1536         case PCI_DEVICE_ID_QLOGIC_ISP2322:
1537                 ha->device_type |= DT_ISP2322;
1538                 ha->device_type |= DT_ZIO_SUPPORTED;
1539                 if (ha->pdev->subsystem_vendor == 0x1028 &&
1540                     ha->pdev->subsystem_device == 0x0170)
1541                         ha->device_type |= DT_OEM_001;
1542                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1543                 break;
1544         case PCI_DEVICE_ID_QLOGIC_ISP6312:
1545                 ha->device_type |= DT_ISP6312;
1546                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1547                 break;
1548         case PCI_DEVICE_ID_QLOGIC_ISP6322:
1549                 ha->device_type |= DT_ISP6322;
1550                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1551                 break;
1552         case PCI_DEVICE_ID_QLOGIC_ISP2422:
1553                 ha->device_type |= DT_ISP2422;
1554                 ha->device_type |= DT_ZIO_SUPPORTED;
1555                 ha->device_type |= DT_FWI2;
1556                 ha->device_type |= DT_IIDMA;
1557                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1558                 break;
1559         case PCI_DEVICE_ID_QLOGIC_ISP2432:
1560                 ha->device_type |= DT_ISP2432;
1561                 ha->device_type |= DT_ZIO_SUPPORTED;
1562                 ha->device_type |= DT_FWI2;
1563                 ha->device_type |= DT_IIDMA;
1564                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1565                 break;
1566         case PCI_DEVICE_ID_QLOGIC_ISP8432:
1567                 ha->device_type |= DT_ISP8432;
1568                 ha->device_type |= DT_ZIO_SUPPORTED;
1569                 ha->device_type |= DT_FWI2;
1570                 ha->device_type |= DT_IIDMA;
1571                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1572                 break;
1573         case PCI_DEVICE_ID_QLOGIC_ISP5422:
1574                 ha->device_type |= DT_ISP5422;
1575                 ha->device_type |= DT_FWI2;
1576                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1577                 break;
1578         case PCI_DEVICE_ID_QLOGIC_ISP5432:
1579                 ha->device_type |= DT_ISP5432;
1580                 ha->device_type |= DT_FWI2;
1581                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1582                 break;
1583         case PCI_DEVICE_ID_QLOGIC_ISP2532:
1584                 ha->device_type |= DT_ISP2532;
1585                 ha->device_type |= DT_ZIO_SUPPORTED;
1586                 ha->device_type |= DT_FWI2;
1587                 ha->device_type |= DT_IIDMA;
1588                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1589                 break;
1590         case PCI_DEVICE_ID_QLOGIC_ISP8001:
1591                 ha->device_type |= DT_ISP8001;
1592                 ha->device_type |= DT_ZIO_SUPPORTED;
1593                 ha->device_type |= DT_FWI2;
1594                 ha->device_type |= DT_IIDMA;
1595                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1596                 break;
1597         }
1598 }
1599
1600 static int
1601 qla2x00_iospace_config(struct qla_hw_data *ha)
1602 {
1603         resource_size_t pio;
1604         uint16_t msix;
1605
1606         if (pci_request_selected_regions(ha->pdev, ha->bars,
1607             QLA2XXX_DRIVER_NAME)) {
1608                 qla_printk(KERN_WARNING, ha,
1609                     "Failed to reserve PIO/MMIO regions (%s)\n",
1610                     pci_name(ha->pdev));
1611
1612                 goto iospace_error_exit;
1613         }
1614         if (!(ha->bars & 1))
1615                 goto skip_pio;
1616
1617         /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1618         pio = pci_resource_start(ha->pdev, 0);
1619         if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
1620                 if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1621                         qla_printk(KERN_WARNING, ha,
1622                             "Invalid PCI I/O region size (%s)...\n",
1623                                 pci_name(ha->pdev));
1624                         pio = 0;
1625                 }
1626         } else {
1627                 qla_printk(KERN_WARNING, ha,
1628                     "region #0 not a PIO resource (%s)...\n",
1629                     pci_name(ha->pdev));
1630                 pio = 0;
1631         }
1632         ha->pio_address = pio;
1633
1634 skip_pio:
1635         /* Use MMIO operations for all accesses. */
1636         if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
1637                 qla_printk(KERN_ERR, ha,
1638                     "region #1 not an MMIO resource (%s), aborting\n",
1639                     pci_name(ha->pdev));
1640                 goto iospace_error_exit;
1641         }
1642         if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
1643                 qla_printk(KERN_ERR, ha,
1644                     "Invalid PCI mem region size (%s), aborting\n",
1645                         pci_name(ha->pdev));
1646                 goto iospace_error_exit;
1647         }
1648
1649         ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
1650         if (!ha->iobase) {
1651                 qla_printk(KERN_ERR, ha,
1652                     "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1653
1654                 goto iospace_error_exit;
1655         }
1656
1657         /* Determine queue resources */
1658         ha->max_queues = 1;
1659         if (ql2xmaxqueues <= 1 || (!IS_QLA25XX(ha) && !IS_QLA81XX(ha)))
1660                 goto mqiobase_exit;
1661         ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 3),
1662                         pci_resource_len(ha->pdev, 3));
1663         if (ha->mqiobase) {
1664                 /* Read MSIX vector size of the board */
1665                 pci_read_config_word(ha->pdev, QLA_PCI_MSIX_CONTROL, &msix);
1666                 ha->msix_count = msix;
1667                 /* Max queues are bounded by available msix vectors */
1668                 /* queue 0 uses two msix vectors */
1669                 if (ha->msix_count - 1 < ql2xmaxqueues)
1670                         ha->max_queues = ha->msix_count - 1;
1671                 else if (ql2xmaxqueues > QLA_MQ_SIZE)
1672                         ha->max_queues = QLA_MQ_SIZE;
1673                 else
1674                         ha->max_queues = ql2xmaxqueues;
1675                 qla_printk(KERN_INFO, ha,
1676                         "MSI-X vector count: %d\n", msix);
1677         }
1678
1679 mqiobase_exit:
1680         ha->msix_count = ha->max_queues + 1;
1681         return (0);
1682
1683 iospace_error_exit:
1684         return (-ENOMEM);
1685 }
1686
1687 static void
1688 qla2xxx_scan_start(struct Scsi_Host *shost)
1689 {
1690         scsi_qla_host_t *vha = shost_priv(shost);
1691
1692         set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1693         set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1694         set_bit(RSCN_UPDATE, &vha->dpc_flags);
1695         set_bit(NPIV_CONFIG_NEEDED, &vha->dpc_flags);
1696 }
1697
1698 static int
1699 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1700 {
1701         scsi_qla_host_t *vha = shost_priv(shost);
1702
1703         if (!vha->host)
1704                 return 1;
1705         if (time > vha->hw->loop_reset_delay * HZ)
1706                 return 1;
1707
1708         return atomic_read(&vha->loop_state) == LOOP_READY;
1709 }
1710
1711 /*
1712  * PCI driver interface
1713  */
1714 static int __devinit
1715 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1716 {
1717         int     ret = -ENODEV;
1718         struct Scsi_Host *host;
1719         scsi_qla_host_t *base_vha = NULL;
1720         struct qla_hw_data *ha;
1721         char pci_info[30];
1722         char fw_str[30];
1723         struct scsi_host_template *sht;
1724         int bars, max_id, mem_only = 0;
1725         uint16_t req_length = 0, rsp_length = 0;
1726         struct req_que *req = NULL;
1727         struct rsp_que *rsp = NULL;
1728
1729         bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
1730         sht = &qla2x00_driver_template;
1731         if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1732             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1733             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8432 ||
1734             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1735             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
1736             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532 ||
1737             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8001) {
1738                 bars = pci_select_bars(pdev, IORESOURCE_MEM);
1739                 sht = &qla24xx_driver_template;
1740                 mem_only = 1;
1741         }
1742
1743         if (mem_only) {
1744                 if (pci_enable_device_mem(pdev))
1745                         goto probe_out;
1746         } else {
1747                 if (pci_enable_device(pdev))
1748                         goto probe_out;
1749         }
1750
1751         /* This may fail but that's ok */
1752         pci_enable_pcie_error_reporting(pdev);
1753
1754         ha = kzalloc(sizeof(struct qla_hw_data), GFP_KERNEL);
1755         if (!ha) {
1756                 DEBUG(printk("Unable to allocate memory for ha\n"));
1757                 goto probe_out;
1758         }
1759         ha->pdev = pdev;
1760
1761         /* Clear our data area */
1762         ha->bars = bars;
1763         ha->mem_only = mem_only;
1764         spin_lock_init(&ha->hardware_lock);
1765
1766         /* Set ISP-type information. */
1767         qla2x00_set_isp_flags(ha);
1768         /* Configure PCI I/O space */
1769         ret = qla2x00_iospace_config(ha);
1770         if (ret)
1771                 goto probe_hw_failed;
1772
1773         qla_printk(KERN_INFO, ha,
1774             "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1775             ha->iobase);
1776
1777         ha->prev_topology = 0;
1778         ha->init_cb_size = sizeof(init_cb_t);
1779         ha->link_data_rate = PORT_SPEED_UNKNOWN;
1780         ha->optrom_size = OPTROM_SIZE_2300;
1781
1782         /* Assign ISP specific operations. */
1783         max_id = MAX_TARGETS_2200;
1784         if (IS_QLA2100(ha)) {
1785                 max_id = MAX_TARGETS_2100;
1786                 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1787                 req_length = REQUEST_ENTRY_CNT_2100;
1788                 rsp_length = RESPONSE_ENTRY_CNT_2100;
1789                 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
1790                 ha->gid_list_info_size = 4;
1791                 ha->flash_conf_off = ~0;
1792                 ha->flash_data_off = ~0;
1793                 ha->nvram_conf_off = ~0;
1794                 ha->nvram_data_off = ~0;
1795                 ha->isp_ops = &qla2100_isp_ops;
1796         } else if (IS_QLA2200(ha)) {
1797                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1798                 req_length = REQUEST_ENTRY_CNT_2200;
1799                 rsp_length = RESPONSE_ENTRY_CNT_2100;
1800                 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
1801                 ha->gid_list_info_size = 4;
1802                 ha->flash_conf_off = ~0;
1803                 ha->flash_data_off = ~0;
1804                 ha->nvram_conf_off = ~0;
1805                 ha->nvram_data_off = ~0;
1806                 ha->isp_ops = &qla2100_isp_ops;
1807         } else if (IS_QLA23XX(ha)) {
1808                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1809                 req_length = REQUEST_ENTRY_CNT_2200;
1810                 rsp_length = RESPONSE_ENTRY_CNT_2300;
1811                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
1812                 ha->gid_list_info_size = 6;
1813                 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1814                         ha->optrom_size = OPTROM_SIZE_2322;
1815                 ha->flash_conf_off = ~0;
1816                 ha->flash_data_off = ~0;
1817                 ha->nvram_conf_off = ~0;
1818                 ha->nvram_data_off = ~0;
1819                 ha->isp_ops = &qla2300_isp_ops;
1820         } else if (IS_QLA24XX_TYPE(ha)) {
1821                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1822                 req_length = REQUEST_ENTRY_CNT_24XX;
1823                 rsp_length = RESPONSE_ENTRY_CNT_2300;
1824                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
1825                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1826                 ha->gid_list_info_size = 8;
1827                 ha->optrom_size = OPTROM_SIZE_24XX;
1828                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA24XX;
1829                 ha->isp_ops = &qla24xx_isp_ops;
1830                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
1831                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
1832                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
1833                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
1834         } else if (IS_QLA25XX(ha)) {
1835                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1836                 req_length = REQUEST_ENTRY_CNT_24XX;
1837                 rsp_length = RESPONSE_ENTRY_CNT_2300;
1838                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
1839                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1840                 ha->gid_list_info_size = 8;
1841                 ha->optrom_size = OPTROM_SIZE_25XX;
1842                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
1843                 ha->isp_ops = &qla25xx_isp_ops;
1844                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
1845                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
1846                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
1847                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
1848         } else if (IS_QLA81XX(ha)) {
1849                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1850                 req_length = REQUEST_ENTRY_CNT_24XX;
1851                 rsp_length = RESPONSE_ENTRY_CNT_2300;
1852                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
1853                 ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
1854                 ha->gid_list_info_size = 8;
1855                 ha->optrom_size = OPTROM_SIZE_81XX;
1856                 ha->isp_ops = &qla81xx_isp_ops;
1857                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
1858                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
1859                 ha->nvram_conf_off = ~0;
1860                 ha->nvram_data_off = ~0;
1861         }
1862
1863         mutex_init(&ha->vport_lock);
1864         init_completion(&ha->mbx_cmd_comp);
1865         complete(&ha->mbx_cmd_comp);
1866         init_completion(&ha->mbx_intr_comp);
1867
1868         set_bit(0, (unsigned long *) ha->vp_idx_map);
1869
1870         qla2x00_config_dma_addressing(ha);
1871         ret = qla2x00_mem_alloc(ha, req_length, rsp_length, &req, &rsp);
1872         if (!ret) {
1873                 qla_printk(KERN_WARNING, ha,
1874                     "[ERROR] Failed to allocate memory for adapter\n");
1875
1876                 goto probe_hw_failed;
1877         }
1878
1879         req->max_q_depth = MAX_Q_DEPTH;
1880         if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
1881                 req->max_q_depth = ql2xmaxqdepth;
1882
1883
1884         base_vha = qla2x00_create_host(sht, ha);
1885         if (!base_vha) {
1886                 qla_printk(KERN_WARNING, ha,
1887                     "[ERROR] Failed to allocate memory for scsi_host\n");
1888
1889                 ret = -ENOMEM;
1890                 qla2x00_mem_free(ha);
1891                 qla2x00_free_que(ha, req, rsp);
1892                 goto probe_hw_failed;
1893         }
1894
1895         pci_set_drvdata(pdev, base_vha);
1896
1897         host = base_vha->host;
1898         base_vha->req_ques[0] = req->id;
1899         host->can_queue = req->length + 128;
1900         if (IS_QLA2XXX_MIDTYPE(ha))
1901                 base_vha->mgmt_svr_loop_id = 10 + base_vha->vp_idx;
1902         else
1903                 base_vha->mgmt_svr_loop_id = MANAGEMENT_SERVER +
1904                                                 base_vha->vp_idx;
1905         if (IS_QLA2100(ha))
1906                 host->sg_tablesize = 32;
1907         host->max_id = max_id;
1908         host->this_id = 255;
1909         host->cmd_per_lun = 3;
1910         host->unique_id = host->host_no;
1911         host->max_cmd_len = MAX_CMDSZ;
1912         host->max_channel = MAX_BUSES - 1;
1913         host->max_lun = MAX_LUNS;
1914         host->transportt = qla2xxx_transport_template;
1915
1916         /* Set up the irqs */
1917         ret = qla2x00_request_irqs(ha, rsp);
1918         if (ret)
1919                 goto probe_init_failed;
1920         /* Alloc arrays of request and response ring ptrs */
1921         if (!qla2x00_alloc_queues(ha)) {
1922                 qla_printk(KERN_WARNING, ha,
1923                 "[ERROR] Failed to allocate memory for queue"
1924                 " pointers\n");
1925                 goto probe_init_failed;
1926         }
1927         ha->rsp_q_map[0] = rsp;
1928         ha->req_q_map[0] = req;
1929
1930         if (ha->mqenable) {
1931                 ha->isp_ops->wrt_req_reg = qla25xx_wrt_req_reg;
1932                 ha->isp_ops->wrt_rsp_reg = qla25xx_wrt_rsp_reg;
1933                 ha->isp_ops->rd_req_reg = qla25xx_rd_req_reg;
1934         }
1935
1936         if (qla2x00_initialize_adapter(base_vha)) {
1937                 qla_printk(KERN_WARNING, ha,
1938                     "Failed to initialize adapter\n");
1939
1940                 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1941                     "Adapter flags %x.\n",
1942                     base_vha->host_no, base_vha->device_flags));
1943
1944                 ret = -ENODEV;
1945                 goto probe_failed;
1946         }
1947
1948         /*
1949          * Startup the kernel thread for this host adapter
1950          */
1951         ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
1952                         "%s_dpc", base_vha->host_str);
1953         if (IS_ERR(ha->dpc_thread)) {
1954                 qla_printk(KERN_WARNING, ha,
1955                     "Unable to start DPC thread!\n");
1956                 ret = PTR_ERR(ha->dpc_thread);
1957                 goto probe_failed;
1958         }
1959
1960         list_add_tail(&base_vha->list, &ha->vp_list);
1961         base_vha->host->irq = ha->pdev->irq;
1962
1963         /* Initialized the timer */
1964         qla2x00_start_timer(base_vha, qla2x00_timer, WATCH_INTERVAL);
1965
1966         DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1967             base_vha->host_no, ha));
1968
1969         base_vha->flags.init_done = 1;
1970         base_vha->flags.online = 1;
1971
1972         ret = scsi_add_host(host, &pdev->dev);
1973         if (ret)
1974                 goto probe_failed;
1975
1976         ha->isp_ops->enable_intrs(ha);
1977
1978         scsi_scan_host(host);
1979
1980         qla2x00_alloc_sysfs_attr(base_vha);
1981
1982         qla2x00_init_host_attr(base_vha);
1983
1984         qla2x00_dfs_setup(base_vha);
1985
1986         qla_printk(KERN_INFO, ha, "\n"
1987             " QLogic Fibre Channel HBA Driver: %s\n"
1988             "  QLogic %s - %s\n"
1989             "  ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1990             qla2x00_version_str, ha->model_number,
1991             ha->model_desc ? ha->model_desc : "", pdev->device,
1992             ha->isp_ops->pci_info_str(base_vha, pci_info), pci_name(pdev),
1993             ha->flags.enable_64bit_addressing ? '+' : '-', base_vha->host_no,
1994             ha->isp_ops->fw_version_str(base_vha, fw_str));
1995
1996         return 0;
1997
1998 probe_init_failed:
1999         qla2x00_free_que(ha, req, rsp);
2000         ha->max_queues = 0;
2001
2002 probe_failed:
2003         qla2x00_free_device(base_vha);
2004
2005         scsi_host_put(base_vha->host);
2006
2007 probe_hw_failed:
2008         if (ha->iobase)
2009                 iounmap(ha->iobase);
2010
2011         pci_release_selected_regions(ha->pdev, ha->bars);
2012         kfree(ha);
2013         ha = NULL;
2014
2015 probe_out:
2016         pci_disable_device(pdev);
2017         return ret;
2018 }
2019
2020 static void
2021 qla2x00_remove_one(struct pci_dev *pdev)
2022 {
2023         scsi_qla_host_t *base_vha, *vha, *temp;
2024         struct qla_hw_data  *ha;
2025
2026         base_vha = pci_get_drvdata(pdev);
2027         ha = base_vha->hw;
2028
2029         list_for_each_entry_safe(vha, temp, &ha->vp_list, list) {
2030                 if (vha && vha->fc_vport)
2031                         fc_vport_terminate(vha->fc_vport);
2032         }
2033
2034         set_bit(UNLOADING, &base_vha->dpc_flags);
2035
2036         qla2x00_dfs_remove(base_vha);
2037
2038         qla84xx_put_chip(base_vha);
2039
2040         qla2x00_free_sysfs_attr(base_vha);
2041
2042         fc_remove_host(base_vha->host);
2043
2044         scsi_remove_host(base_vha->host);
2045
2046         qla2x00_free_device(base_vha);
2047
2048         scsi_host_put(base_vha->host);
2049
2050         if (ha->iobase)
2051                 iounmap(ha->iobase);
2052
2053         if (ha->mqiobase)
2054                 iounmap(ha->mqiobase);
2055
2056         pci_release_selected_regions(ha->pdev, ha->bars);
2057         kfree(ha);
2058         ha = NULL;
2059
2060         pci_disable_device(pdev);
2061         pci_set_drvdata(pdev, NULL);
2062 }
2063
2064 static void
2065 qla2x00_free_device(scsi_qla_host_t *vha)
2066 {
2067         struct qla_hw_data *ha = vha->hw;
2068         qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
2069
2070         /* Disable timer */
2071         if (vha->timer_active)
2072                 qla2x00_stop_timer(vha);
2073
2074         vha->flags.online = 0;
2075
2076         /* Kill the kernel thread for this host */
2077         if (ha->dpc_thread) {
2078                 struct task_struct *t = ha->dpc_thread;
2079
2080                 /*
2081                  * qla2xxx_wake_dpc checks for ->dpc_thread
2082                  * so we need to zero it out.
2083                  */
2084                 ha->dpc_thread = NULL;
2085                 kthread_stop(t);
2086         }
2087
2088         if (ha->flags.fce_enabled)
2089                 qla2x00_disable_fce_trace(vha, NULL, NULL);
2090
2091         if (ha->eft)
2092                 qla2x00_disable_eft_trace(vha);
2093
2094         /* Stop currently executing firmware. */
2095         qla2x00_try_to_stop_firmware(vha);
2096
2097         /* turn-off interrupts on the card */
2098         if (ha->interrupts_on)
2099                 ha->isp_ops->disable_intrs(ha);
2100
2101         qla2x00_free_irqs(vha);
2102
2103         qla2x00_mem_free(ha);
2104
2105         qla2x00_free_queues(ha);
2106 }
2107
2108 static inline void
2109 qla2x00_schedule_rport_del(struct scsi_qla_host *vha, fc_port_t *fcport,
2110     int defer)
2111 {
2112         struct fc_rport *rport;
2113
2114         if (!fcport->rport)
2115                 return;
2116
2117         rport = fcport->rport;
2118         if (defer) {
2119                 spin_lock_irq(vha->host->host_lock);
2120                 fcport->drport = rport;
2121                 spin_unlock_irq(vha->host->host_lock);
2122                 set_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags);
2123                 qla2xxx_wake_dpc(vha);
2124         } else
2125                 fc_remote_port_delete(rport);
2126 }
2127
2128 /*
2129  * qla2x00_mark_device_lost Updates fcport state when device goes offline.
2130  *
2131  * Input: ha = adapter block pointer.  fcport = port structure pointer.
2132  *
2133  * Return: None.
2134  *
2135  * Context:
2136  */
2137 void qla2x00_mark_device_lost(scsi_qla_host_t *vha, fc_port_t *fcport,
2138     int do_login, int defer)
2139 {
2140         if (atomic_read(&fcport->state) == FCS_ONLINE &&
2141             vha->vp_idx == fcport->vp_idx) {
2142                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2143                 qla2x00_schedule_rport_del(vha, fcport, defer);
2144         }
2145         /*
2146          * We may need to retry the login, so don't change the state of the
2147          * port but do the retries.
2148          */
2149         if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
2150                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2151
2152         if (!do_login)
2153                 return;
2154
2155         if (fcport->login_retry == 0) {
2156                 fcport->login_retry = vha->hw->login_retry_count;
2157                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2158
2159                 DEBUG(printk("scsi(%ld): Port login retry: "
2160                     "%02x%02x%02x%02x%02x%02x%02x%02x, "
2161                     "id = 0x%04x retry cnt=%d\n",
2162                     vha->host_no,
2163                     fcport->port_name[0],
2164                     fcport->port_name[1],
2165                     fcport->port_name[2],
2166                     fcport->port_name[3],
2167                     fcport->port_name[4],
2168                     fcport->port_name[5],
2169                     fcport->port_name[6],
2170                     fcport->port_name[7],
2171                     fcport->loop_id,
2172                     fcport->login_retry));
2173         }
2174 }
2175
2176 /*
2177  * qla2x00_mark_all_devices_lost
2178  *      Updates fcport state when device goes offline.
2179  *
2180  * Input:
2181  *      ha = adapter block pointer.
2182  *      fcport = port structure pointer.
2183  *
2184  * Return:
2185  *      None.
2186  *
2187  * Context:
2188  */
2189 void
2190 qla2x00_mark_all_devices_lost(scsi_qla_host_t *vha, int defer)
2191 {
2192         fc_port_t *fcport;
2193
2194         list_for_each_entry(fcport, &vha->vp_fcports, list) {
2195                 if (vha->vp_idx != fcport->vp_idx)
2196                         continue;
2197                 /*
2198                  * No point in marking the device as lost, if the device is
2199                  * already DEAD.
2200                  */
2201                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
2202                         continue;
2203                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
2204                         atomic_set(&fcport->state, FCS_DEVICE_LOST);
2205                         qla2x00_schedule_rport_del(vha, fcport, defer);
2206                 } else
2207                         atomic_set(&fcport->state, FCS_DEVICE_LOST);
2208         }
2209 }
2210
2211 /*
2212 * qla2x00_mem_alloc
2213 *      Allocates adapter memory.
2214 *
2215 * Returns:
2216 *      0  = success.
2217 *      !0  = failure.
2218 */
2219 static int
2220 qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
2221         struct req_que **req, struct rsp_que **rsp)
2222 {
2223         char    name[16];
2224
2225         ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
2226                 &ha->init_cb_dma, GFP_KERNEL);
2227         if (!ha->init_cb)
2228                 goto fail;
2229
2230         ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
2231                 &ha->gid_list_dma, GFP_KERNEL);
2232         if (!ha->gid_list)
2233                 goto fail_free_init_cb;
2234
2235         ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
2236         if (!ha->srb_mempool)
2237                 goto fail_free_gid_list;
2238
2239         /* Get memory for cached NVRAM */
2240         ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
2241         if (!ha->nvram)
2242                 goto fail_free_srb_mempool;
2243
2244         snprintf(name, sizeof(name), "%s_%d", QLA2XXX_DRIVER_NAME,
2245                 ha->pdev->device);
2246         ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2247                 DMA_POOL_SIZE, 8, 0);
2248         if (!ha->s_dma_pool)
2249                 goto fail_free_nvram;
2250
2251         /* Allocate memory for SNS commands */
2252         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2253         /* Get consistent memory allocated for SNS commands */
2254                 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
2255                 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
2256                 if (!ha->sns_cmd)
2257                         goto fail_dma_pool;
2258         } else {
2259         /* Get consistent memory allocated for MS IOCB */
2260                 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2261                         &ha->ms_iocb_dma);
2262                 if (!ha->ms_iocb)
2263                         goto fail_dma_pool;
2264         /* Get consistent memory allocated for CT SNS commands */
2265                 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2266                         sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
2267                 if (!ha->ct_sns)
2268                         goto fail_free_ms_iocb;
2269         }
2270
2271         /* Allocate memory for request ring */
2272         *req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
2273         if (!*req) {
2274                 DEBUG(printk("Unable to allocate memory for req\n"));
2275                 goto fail_req;
2276         }
2277         (*req)->length = req_len;
2278         (*req)->ring = dma_alloc_coherent(&ha->pdev->dev,
2279                 ((*req)->length + 1) * sizeof(request_t),
2280                 &(*req)->dma, GFP_KERNEL);
2281         if (!(*req)->ring) {
2282                 DEBUG(printk("Unable to allocate memory for req_ring\n"));
2283                 goto fail_req_ring;
2284         }
2285         /* Allocate memory for response ring */
2286         *rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
2287         if (!*rsp) {
2288                 qla_printk(KERN_WARNING, ha,
2289                         "Unable to allocate memory for rsp\n");
2290                 goto fail_rsp;
2291         }
2292         (*rsp)->hw = ha;
2293         (*rsp)->length = rsp_len;
2294         (*rsp)->ring = dma_alloc_coherent(&ha->pdev->dev,
2295                 ((*rsp)->length + 1) * sizeof(response_t),
2296                 &(*rsp)->dma, GFP_KERNEL);
2297         if (!(*rsp)->ring) {
2298                 qla_printk(KERN_WARNING, ha,
2299                         "Unable to allocate memory for rsp_ring\n");
2300                 goto fail_rsp_ring;
2301         }
2302         (*req)->rsp = *rsp;
2303         (*rsp)->req = *req;
2304         /* Allocate memory for NVRAM data for vports */
2305         if (ha->nvram_npiv_size) {
2306                 ha->npiv_info = kzalloc(sizeof(struct qla_npiv_entry) *
2307                                         ha->nvram_npiv_size, GFP_KERNEL);
2308                 if (!ha->npiv_info) {
2309                         qla_printk(KERN_WARNING, ha,
2310                                 "Unable to allocate memory for npiv info\n");
2311                         goto fail_npiv_info;
2312                 }
2313         } else
2314                 ha->npiv_info = NULL;
2315
2316         INIT_LIST_HEAD(&ha->vp_list);
2317         return 1;
2318
2319 fail_npiv_info:
2320         dma_free_coherent(&ha->pdev->dev, ((*rsp)->length + 1) *
2321                 sizeof(response_t), (*rsp)->ring, (*rsp)->dma);
2322         (*rsp)->ring = NULL;
2323         (*rsp)->dma = 0;
2324 fail_rsp_ring:
2325         kfree(*rsp);
2326 fail_rsp:
2327         dma_free_coherent(&ha->pdev->dev, ((*req)->length + 1) *
2328                 sizeof(request_t), (*req)->ring, (*req)->dma);
2329         (*req)->ring = NULL;
2330         (*req)->dma = 0;
2331 fail_req_ring:
2332         kfree(*req);
2333 fail_req:
2334         dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2335                 ha->ct_sns, ha->ct_sns_dma);
2336         ha->ct_sns = NULL;
2337         ha->ct_sns_dma = 0;
2338 fail_free_ms_iocb:
2339         dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2340         ha->ms_iocb = NULL;
2341         ha->ms_iocb_dma = 0;
2342 fail_dma_pool:
2343         dma_pool_destroy(ha->s_dma_pool);
2344         ha->s_dma_pool = NULL;
2345 fail_free_nvram:
2346         kfree(ha->nvram);
2347         ha->nvram = NULL;
2348 fail_free_srb_mempool:
2349         mempool_destroy(ha->srb_mempool);
2350         ha->srb_mempool = NULL;
2351 fail_free_gid_list:
2352         dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2353         ha->gid_list_dma);
2354         ha->gid_list = NULL;
2355         ha->gid_list_dma = 0;
2356 fail_free_init_cb:
2357         dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
2358         ha->init_cb_dma);
2359         ha->init_cb = NULL;
2360         ha->init_cb_dma = 0;
2361 fail:
2362         DEBUG(printk("%s: Memory allocation failure\n", __func__));
2363         return -ENOMEM;
2364 }
2365
2366 /*
2367 * qla2x00_mem_free
2368 *      Frees all adapter allocated memory.
2369 *
2370 * Input:
2371 *      ha = adapter block pointer.
2372 */
2373 static void
2374 qla2x00_mem_free(struct qla_hw_data *ha)
2375 {
2376         if (ha->srb_mempool)
2377                 mempool_destroy(ha->srb_mempool);
2378
2379         if (ha->fce)
2380                 dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
2381                 ha->fce_dma);
2382
2383         if (ha->fw_dump) {
2384                 if (ha->eft)
2385                         dma_free_coherent(&ha->pdev->dev,
2386                         ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2387                 vfree(ha->fw_dump);
2388         }
2389
2390         if (ha->sns_cmd)
2391                 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2392                 ha->sns_cmd, ha->sns_cmd_dma);
2393
2394         if (ha->ct_sns)
2395                 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2396                 ha->ct_sns, ha->ct_sns_dma);
2397
2398         if (ha->sfp_data)
2399                 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2400
2401         if (ha->ms_iocb)
2402                 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2403
2404         if (ha->s_dma_pool)
2405                 dma_pool_destroy(ha->s_dma_pool);
2406
2407
2408         if (ha->gid_list)
2409                 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2410                 ha->gid_list_dma);
2411
2412
2413         if (ha->init_cb)
2414                 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
2415                 ha->init_cb, ha->init_cb_dma);
2416         vfree(ha->optrom_buffer);
2417         kfree(ha->nvram);
2418         kfree(ha->npiv_info);
2419
2420         ha->srb_mempool = NULL;
2421         ha->eft = NULL;
2422         ha->eft_dma = 0;
2423         ha->sns_cmd = NULL;
2424         ha->sns_cmd_dma = 0;
2425         ha->ct_sns = NULL;
2426         ha->ct_sns_dma = 0;
2427         ha->ms_iocb = NULL;
2428         ha->ms_iocb_dma = 0;
2429         ha->init_cb = NULL;
2430         ha->init_cb_dma = 0;
2431
2432         ha->s_dma_pool = NULL;
2433
2434         ha->gid_list = NULL;
2435         ha->gid_list_dma = 0;
2436
2437         ha->fw_dump = NULL;
2438         ha->fw_dumped = 0;
2439         ha->fw_dump_reading = 0;
2440 }
2441
2442 struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht,
2443                                                 struct qla_hw_data *ha)
2444 {
2445         struct Scsi_Host *host;
2446         struct scsi_qla_host *vha = NULL;
2447
2448         host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
2449         if (host == NULL) {
2450                 printk(KERN_WARNING
2451                 "qla2xxx: Couldn't allocate host from scsi layer!\n");
2452                 goto fail;
2453         }
2454
2455         /* Clear our data area */
2456         vha = shost_priv(host);
2457         memset(vha, 0, sizeof(scsi_qla_host_t));
2458
2459         vha->host = host;
2460         vha->host_no = host->host_no;
2461         vha->hw = ha;
2462
2463         INIT_LIST_HEAD(&vha->vp_fcports);
2464         INIT_LIST_HEAD(&vha->work_list);
2465         INIT_LIST_HEAD(&vha->list);
2466
2467         sprintf(vha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, vha->host_no);
2468         return vha;
2469
2470 fail:
2471         return vha;
2472 }
2473
2474 static struct qla_work_evt *
2475 qla2x00_alloc_work(struct scsi_qla_host *vha, enum qla_work_type type,
2476     int locked)
2477 {
2478         struct qla_work_evt *e;
2479
2480         e = kzalloc(sizeof(struct qla_work_evt), locked ? GFP_ATOMIC:
2481             GFP_KERNEL);
2482         if (!e)
2483                 return NULL;
2484
2485         INIT_LIST_HEAD(&e->list);
2486         e->type = type;
2487         e->flags = QLA_EVT_FLAG_FREE;
2488         return e;
2489 }
2490
2491 static int
2492 qla2x00_post_work(struct scsi_qla_host *vha, struct qla_work_evt *e, int locked)
2493 {
2494         unsigned long uninitialized_var(flags);
2495         struct qla_hw_data *ha = vha->hw;
2496
2497         if (!locked)
2498                 spin_lock_irqsave(&ha->hardware_lock, flags);
2499         list_add_tail(&e->list, &vha->work_list);
2500         qla2xxx_wake_dpc(vha);
2501         if (!locked)
2502                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2503         return QLA_SUCCESS;
2504 }
2505
2506 int
2507 qla2x00_post_aen_work(struct scsi_qla_host *vha, enum fc_host_event_code code,
2508     u32 data)
2509 {
2510         struct qla_work_evt *e;
2511
2512         e = qla2x00_alloc_work(vha, QLA_EVT_AEN, 1);
2513         if (!e)
2514                 return QLA_FUNCTION_FAILED;
2515
2516         e->u.aen.code = code;
2517         e->u.aen.data = data;
2518         return qla2x00_post_work(vha, e, 1);
2519 }
2520
2521 int
2522 qla2x00_post_idc_ack_work(struct scsi_qla_host *vha, uint16_t *mb)
2523 {
2524         struct qla_work_evt *e;
2525
2526         e = qla2x00_alloc_work(vha, QLA_EVT_IDC_ACK, 1);
2527         if (!e)
2528                 return QLA_FUNCTION_FAILED;
2529
2530         memcpy(e->u.idc_ack.mb, mb, QLA_IDC_ACK_REGS * sizeof(uint16_t));
2531         return qla2x00_post_work(vha, e, 1);
2532 }
2533
2534 static void
2535 qla2x00_do_work(struct scsi_qla_host *vha)
2536 {
2537         struct qla_work_evt *e;
2538         struct qla_hw_data *ha = vha->hw;
2539
2540         spin_lock_irq(&ha->hardware_lock);
2541         while (!list_empty(&vha->work_list)) {
2542                 e = list_entry(vha->work_list.next, struct qla_work_evt, list);
2543                 list_del_init(&e->list);
2544                 spin_unlock_irq(&ha->hardware_lock);
2545
2546                 switch (e->type) {
2547                 case QLA_EVT_AEN:
2548                         fc_host_post_event(vha->host, fc_get_event_number(),
2549                             e->u.aen.code, e->u.aen.data);
2550                         break;
2551                 case QLA_EVT_IDC_ACK:
2552                         qla81xx_idc_ack(vha, e->u.idc_ack.mb);
2553                         break;
2554                 }
2555                 if (e->flags & QLA_EVT_FLAG_FREE)
2556                         kfree(e);
2557                 spin_lock_irq(&ha->hardware_lock);
2558         }
2559         spin_unlock_irq(&ha->hardware_lock);
2560 }
2561 /* Relogins all the fcports of a vport
2562  * Context: dpc thread
2563  */
2564 void qla2x00_relogin(struct scsi_qla_host *vha)
2565 {
2566         fc_port_t       *fcport;
2567         int status;
2568         uint16_t        next_loopid = 0;
2569         struct qla_hw_data *ha = vha->hw;
2570
2571         list_for_each_entry(fcport, &vha->vp_fcports, list) {
2572         /*
2573          * If the port is not ONLINE then try to login
2574          * to it if we haven't run out of retries.
2575          */
2576                 if (atomic_read(&fcport->state) !=
2577                         FCS_ONLINE && fcport->login_retry) {
2578
2579                         if (fcport->flags & FCF_FABRIC_DEVICE) {
2580                                 if (fcport->flags & FCF_TAPE_PRESENT)
2581                                         ha->isp_ops->fabric_logout(vha,
2582                                                         fcport->loop_id,
2583                                                         fcport->d_id.b.domain,
2584                                                         fcport->d_id.b.area,
2585                                                         fcport->d_id.b.al_pa);
2586
2587                                 status = qla2x00_fabric_login(vha, fcport,
2588                                                         &next_loopid);
2589                         } else
2590                                 status = qla2x00_local_device_login(vha,
2591                                                                 fcport);
2592
2593                         fcport->login_retry--;
2594                         if (status == QLA_SUCCESS) {
2595                                 fcport->old_loop_id = fcport->loop_id;
2596
2597                                 DEBUG(printk("scsi(%ld): port login OK: logged "
2598                                 "in ID 0x%x\n", vha->host_no, fcport->loop_id));
2599
2600                                 qla2x00_update_fcport(vha, fcport);
2601
2602                         } else if (status == 1) {
2603                                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2604                                 /* retry the login again */
2605                                 DEBUG(printk("scsi(%ld): Retrying"
2606                                 " %d login again loop_id 0x%x\n",
2607                                 vha->host_no, fcport->login_retry,
2608                                                 fcport->loop_id));
2609                         } else {
2610                                 fcport->login_retry = 0;
2611                         }
2612
2613                         if (fcport->login_retry == 0 && status != QLA_SUCCESS)
2614                                 fcport->loop_id = FC_NO_LOOP_ID;
2615                 }
2616                 if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
2617                         break;
2618         }
2619 }
2620
2621 /**************************************************************************
2622 * qla2x00_do_dpc
2623 *   This kernel thread is a task that is schedule by the interrupt handler
2624 *   to perform the background processing for interrupts.
2625 *
2626 * Notes:
2627 * This task always run in the context of a kernel thread.  It
2628 * is kick-off by the driver's detect code and starts up
2629 * up one per adapter. It immediately goes to sleep and waits for
2630 * some fibre event.  When either the interrupt handler or
2631 * the timer routine detects a event it will one of the task
2632 * bits then wake us up.
2633 **************************************************************************/
2634 static int
2635 qla2x00_do_dpc(void *data)
2636 {
2637         int             rval;
2638         scsi_qla_host_t *base_vha;
2639         struct qla_hw_data *ha;
2640
2641         ha = (struct qla_hw_data *)data;
2642         base_vha = pci_get_drvdata(ha->pdev);
2643
2644         set_user_nice(current, -20);
2645
2646         while (!kthread_should_stop()) {
2647                 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2648
2649                 set_current_state(TASK_INTERRUPTIBLE);
2650                 schedule();
2651                 __set_current_state(TASK_RUNNING);
2652
2653                 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2654
2655                 /* Initialization not yet finished. Don't do anything yet. */
2656                 if (!base_vha->flags.init_done)
2657                         continue;
2658
2659                 DEBUG3(printk("scsi(%ld): DPC handler\n", base_vha->host_no));
2660
2661                 ha->dpc_active = 1;
2662
2663                 if (ha->flags.mbox_busy) {
2664                         ha->dpc_active = 0;
2665                         continue;
2666                 }
2667
2668                 qla2x00_do_work(base_vha);
2669
2670                 if (test_and_clear_bit(ISP_ABORT_NEEDED,
2671                                                 &base_vha->dpc_flags)) {
2672
2673                         DEBUG(printk("scsi(%ld): dpc: sched "
2674                             "qla2x00_abort_isp ha = %p\n",
2675                             base_vha->host_no, ha));
2676                         if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2677                             &base_vha->dpc_flags))) {
2678
2679                                 if (qla2x00_abort_isp(base_vha)) {
2680                                         /* failed. retry later */
2681                                         set_bit(ISP_ABORT_NEEDED,
2682                                             &base_vha->dpc_flags);
2683                                 }
2684                                 clear_bit(ABORT_ISP_ACTIVE,
2685                                                 &base_vha->dpc_flags);
2686                         }
2687
2688                         DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2689                             base_vha->host_no));
2690                 }
2691
2692                 if (test_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags)) {
2693                         qla2x00_update_fcports(base_vha);
2694                         clear_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
2695                 }
2696
2697                 if (test_and_clear_bit(RESET_MARKER_NEEDED,
2698                                                         &base_vha->dpc_flags) &&
2699                     (!(test_and_set_bit(RESET_ACTIVE, &base_vha->dpc_flags)))) {
2700
2701                         DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2702                             base_vha->host_no));
2703
2704                         qla2x00_rst_aen(base_vha);
2705                         clear_bit(RESET_ACTIVE, &base_vha->dpc_flags);
2706                 }
2707
2708                 /* Retry each device up to login retry count */
2709                 if ((test_and_clear_bit(RELOGIN_NEEDED,
2710                                                 &base_vha->dpc_flags)) &&
2711                     !test_bit(LOOP_RESYNC_NEEDED, &base_vha->dpc_flags) &&
2712                     atomic_read(&base_vha->loop_state) != LOOP_DOWN) {
2713
2714                         DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2715                                         base_vha->host_no));
2716                         qla2x00_relogin(base_vha);
2717
2718                         DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2719                             base_vha->host_no));
2720                 }
2721
2722                 if (test_and_clear_bit(LOOP_RESYNC_NEEDED,
2723                                                         &base_vha->dpc_flags)) {
2724
2725                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2726                                 base_vha->host_no));
2727
2728                         if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2729                             &base_vha->dpc_flags))) {
2730
2731                                 rval = qla2x00_loop_resync(base_vha);
2732
2733                                 clear_bit(LOOP_RESYNC_ACTIVE,
2734                                                 &base_vha->dpc_flags);
2735                         }
2736
2737                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2738                             base_vha->host_no));
2739                 }
2740
2741                 if (test_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags) &&
2742                     atomic_read(&base_vha->loop_state) == LOOP_READY) {
2743                         clear_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags);
2744                         qla2xxx_flash_npiv_conf(base_vha);
2745                 }
2746
2747                 if (!ha->interrupts_on)
2748                         ha->isp_ops->enable_intrs(ha);
2749
2750                 if (test_and_clear_bit(BEACON_BLINK_NEEDED,
2751                                         &base_vha->dpc_flags))
2752                         ha->isp_ops->beacon_blink(base_vha);
2753
2754                 qla2x00_do_dpc_all_vps(base_vha);
2755
2756                 ha->dpc_active = 0;
2757         } /* End of while(1) */
2758
2759         DEBUG(printk("scsi(%ld): DPC handler exiting\n", base_vha->host_no));
2760
2761         /*
2762          * Make sure that nobody tries to wake us up again.
2763          */
2764         ha->dpc_active = 0;
2765
2766         return 0;
2767 }
2768
2769 void
2770 qla2xxx_wake_dpc(struct scsi_qla_host *vha)
2771 {
2772         struct qla_hw_data *ha = vha->hw;
2773         struct task_struct *t = ha->dpc_thread;
2774
2775         if (!test_bit(UNLOADING, &vha->dpc_flags) && t)
2776                 wake_up_process(t);
2777 }
2778
2779 /*
2780 *  qla2x00_rst_aen
2781 *      Processes asynchronous reset.
2782 *
2783 * Input:
2784 *      ha  = adapter block pointer.
2785 */
2786 static void
2787 qla2x00_rst_aen(scsi_qla_host_t *vha)
2788 {
2789         if (vha->flags.online && !vha->flags.reset_active &&
2790             !atomic_read(&vha->loop_down_timer) &&
2791             !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) {
2792                 do {
2793                         clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
2794
2795                         /*
2796                          * Issue marker command only when we are going to start
2797                          * the I/O.
2798                          */
2799                         vha->marker_needed = 1;
2800                 } while (!atomic_read(&vha->loop_down_timer) &&
2801                     (test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags)));
2802         }
2803 }
2804
2805 static void
2806 qla2x00_sp_free_dma(srb_t *sp)
2807 {
2808         struct scsi_cmnd *cmd = sp->cmd;
2809
2810         if (sp->flags & SRB_DMA_VALID) {
2811                 scsi_dma_unmap(cmd);
2812                 sp->flags &= ~SRB_DMA_VALID;
2813         }
2814         CMD_SP(cmd) = NULL;
2815 }
2816
2817 void
2818 qla2x00_sp_compl(struct qla_hw_data *ha, srb_t *sp)
2819 {
2820         struct scsi_cmnd *cmd = sp->cmd;
2821
2822         qla2x00_sp_free_dma(sp);
2823
2824         mempool_free(sp, ha->srb_mempool);
2825
2826         cmd->scsi_done(cmd);
2827 }
2828
2829 /**************************************************************************
2830 *   qla2x00_timer
2831 *
2832 * Description:
2833 *   One second timer
2834 *
2835 * Context: Interrupt
2836 ***************************************************************************/
2837 void
2838 qla2x00_timer(scsi_qla_host_t *vha)
2839 {
2840         unsigned long   cpu_flags = 0;
2841         fc_port_t       *fcport;
2842         int             start_dpc = 0;
2843         int             index;
2844         srb_t           *sp;
2845         int             t;
2846         struct qla_hw_data *ha = vha->hw;
2847         struct req_que *req;
2848         /*
2849          * Ports - Port down timer.
2850          *
2851          * Whenever, a port is in the LOST state we start decrementing its port
2852          * down timer every second until it reaches zero. Once  it reaches zero
2853          * the port it marked DEAD.
2854          */
2855         t = 0;
2856         list_for_each_entry(fcport, &vha->vp_fcports, list) {
2857                 if (fcport->port_type != FCT_TARGET)
2858                         continue;
2859
2860                 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2861
2862                         if (atomic_read(&fcport->port_down_timer) == 0)
2863                                 continue;
2864
2865                         if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
2866                                 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
2867
2868                         DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
2869                             "%d remaining\n",
2870                             vha->host_no,
2871                             t, atomic_read(&fcport->port_down_timer)));
2872                 }
2873                 t++;
2874         } /* End of for fcport  */
2875
2876
2877         /* Loop down handler. */
2878         if (atomic_read(&vha->loop_down_timer) > 0 &&
2879             !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
2880                 && vha->flags.online) {
2881
2882                 if (atomic_read(&vha->loop_down_timer) ==
2883                     vha->loop_down_abort_time) {
2884
2885                         DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2886                             "queues before time expire\n",
2887                             vha->host_no));
2888
2889                         if (!IS_QLA2100(ha) && vha->link_down_timeout)
2890                                 atomic_set(&vha->loop_state, LOOP_DEAD);
2891
2892                         /* Schedule an ISP abort to return any tape commands. */
2893                         /* NPIV - scan physical port only */
2894                         if (!vha->vp_idx) {
2895                                 spin_lock_irqsave(&ha->hardware_lock,
2896                                     cpu_flags);
2897                                 req = ha->req_q_map[0];
2898                                 for (index = 1;
2899                                     index < MAX_OUTSTANDING_COMMANDS;
2900                                     index++) {
2901                                         fc_port_t *sfcp;
2902
2903                                         sp = req->outstanding_cmds[index];
2904                                         if (!sp)
2905                                                 continue;
2906                                         sfcp = sp->fcport;
2907                                         if (!(sfcp->flags & FCF_TAPE_PRESENT))
2908                                                 continue;
2909
2910                                         set_bit(ISP_ABORT_NEEDED,
2911                                                         &vha->dpc_flags);
2912                                         break;
2913                                 }
2914                                 spin_unlock_irqrestore(&ha->hardware_lock,
2915                                                                 cpu_flags);
2916                         }
2917                         set_bit(ABORT_QUEUES_NEEDED, &vha->dpc_flags);
2918                         start_dpc++;
2919                 }
2920
2921                 /* if the loop has been down for 4 minutes, reinit adapter */
2922                 if (atomic_dec_and_test(&vha->loop_down_timer) != 0) {
2923                         DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2924                             "restarting queues.\n",
2925                             vha->host_no));
2926
2927                         set_bit(RESTART_QUEUES_NEEDED, &vha->dpc_flags);
2928                         start_dpc++;
2929
2930                         if (!(vha->device_flags & DFLG_NO_CABLE) &&
2931                             !vha->vp_idx) {
2932                                 DEBUG(printk("scsi(%ld): Loop down - "
2933                                     "aborting ISP.\n",
2934                                     vha->host_no));
2935                                 qla_printk(KERN_WARNING, ha,
2936                                     "Loop down - aborting ISP.\n");
2937
2938                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2939                         }
2940                 }
2941                 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
2942                     vha->host_no,
2943                     atomic_read(&vha->loop_down_timer)));
2944         }
2945
2946         /* Check if beacon LED needs to be blinked */
2947         if (ha->beacon_blink_led == 1) {
2948                 set_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags);
2949                 start_dpc++;
2950         }
2951
2952         /* Process any deferred work. */
2953         if (!list_empty(&vha->work_list))
2954                 start_dpc++;
2955
2956         /* Schedule the DPC routine if needed */
2957         if ((test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
2958             test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) ||
2959             test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags) ||
2960             start_dpc ||
2961             test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) ||
2962             test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags) ||
2963             test_bit(VP_DPC_NEEDED, &vha->dpc_flags) ||
2964             test_bit(RELOGIN_NEEDED, &vha->dpc_flags)))
2965                 qla2xxx_wake_dpc(vha);
2966
2967         qla2x00_restart_timer(vha, WATCH_INTERVAL);
2968 }
2969
2970 /* Firmware interface routines. */
2971
2972 #define FW_BLOBS        7
2973 #define FW_ISP21XX      0
2974 #define FW_ISP22XX      1
2975 #define FW_ISP2300      2
2976 #define FW_ISP2322      3
2977 #define FW_ISP24XX      4
2978 #define FW_ISP25XX      5
2979 #define FW_ISP81XX      6
2980
2981 #define FW_FILE_ISP21XX "ql2100_fw.bin"
2982 #define FW_FILE_ISP22XX "ql2200_fw.bin"
2983 #define FW_FILE_ISP2300 "ql2300_fw.bin"
2984 #define FW_FILE_ISP2322 "ql2322_fw.bin"
2985 #define FW_FILE_ISP24XX "ql2400_fw.bin"
2986 #define FW_FILE_ISP25XX "ql2500_fw.bin"
2987 #define FW_FILE_ISP81XX "ql8100_fw.bin"
2988
2989 static DEFINE_MUTEX(qla_fw_lock);
2990
2991 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
2992         { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
2993         { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
2994         { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
2995         { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
2996         { .name = FW_FILE_ISP24XX, },
2997         { .name = FW_FILE_ISP25XX, },
2998         { .name = FW_FILE_ISP81XX, },
2999 };
3000
3001 struct fw_blob *
3002 qla2x00_request_firmware(scsi_qla_host_t *vha)
3003 {
3004         struct qla_hw_data *ha = vha->hw;
3005         struct fw_blob *blob;
3006
3007         blob = NULL;
3008         if (IS_QLA2100(ha)) {
3009                 blob = &qla_fw_blobs[FW_ISP21XX];
3010         } else if (IS_QLA2200(ha)) {
3011                 blob = &qla_fw_blobs[FW_ISP22XX];
3012         } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
3013                 blob = &qla_fw_blobs[FW_ISP2300];
3014         } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
3015                 blob = &qla_fw_blobs[FW_ISP2322];
3016         } else if (IS_QLA24XX_TYPE(ha)) {
3017                 blob = &qla_fw_blobs[FW_ISP24XX];
3018         } else if (IS_QLA25XX(ha)) {
3019                 blob = &qla_fw_blobs[FW_ISP25XX];
3020         } else if (IS_QLA81XX(ha)) {
3021                 blob = &qla_fw_blobs[FW_ISP81XX];
3022         }
3023
3024         mutex_lock(&qla_fw_lock);
3025         if (blob->fw)
3026                 goto out;
3027
3028         if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
3029                 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
3030                     "(%s).\n", vha->host_no, blob->name));
3031                 blob->fw = NULL;
3032                 blob = NULL;
3033                 goto out;
3034         }
3035
3036 out:
3037         mutex_unlock(&qla_fw_lock);
3038         return blob;
3039 }
3040
3041 static void
3042 qla2x00_release_firmware(void)
3043 {
3044         int idx;
3045
3046         mutex_lock(&qla_fw_lock);
3047         for (idx = 0; idx < FW_BLOBS; idx++)
3048                 if (qla_fw_blobs[idx].fw)
3049                         release_firmware(qla_fw_blobs[idx].fw);
3050         mutex_unlock(&qla_fw_lock);
3051 }
3052
3053 static pci_ers_result_t
3054 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
3055 {
3056         switch (state) {
3057         case pci_channel_io_normal:
3058                 return PCI_ERS_RESULT_CAN_RECOVER;
3059         case pci_channel_io_frozen:
3060                 pci_disable_device(pdev);
3061                 return PCI_ERS_RESULT_NEED_RESET;
3062         case pci_channel_io_perm_failure:
3063                 qla2x00_remove_one(pdev);
3064                 return PCI_ERS_RESULT_DISCONNECT;
3065         }
3066         return PCI_ERS_RESULT_NEED_RESET;
3067 }
3068
3069 static pci_ers_result_t
3070 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
3071 {
3072         int risc_paused = 0;
3073         uint32_t stat;
3074         unsigned long flags;
3075         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3076         struct qla_hw_data *ha = base_vha->hw;
3077         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3078         struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
3079
3080         spin_lock_irqsave(&ha->hardware_lock, flags);
3081         if (IS_QLA2100(ha) || IS_QLA2200(ha)){
3082                 stat = RD_REG_DWORD(&reg->hccr);
3083                 if (stat & HCCR_RISC_PAUSE)
3084                         risc_paused = 1;
3085         } else if (IS_QLA23XX(ha)) {
3086                 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
3087                 if (stat & HSR_RISC_PAUSED)
3088                         risc_paused = 1;
3089         } else if (IS_FWI2_CAPABLE(ha)) {
3090                 stat = RD_REG_DWORD(&reg24->host_status);
3091                 if (stat & HSRX_RISC_PAUSED)
3092                         risc_paused = 1;
3093         }
3094         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3095
3096         if (risc_paused) {
3097                 qla_printk(KERN_INFO, ha, "RISC paused -- mmio_enabled, "
3098                     "Dumping firmware!\n");
3099                 ha->isp_ops->fw_dump(base_vha, 0);
3100
3101                 return PCI_ERS_RESULT_NEED_RESET;
3102         } else
3103                 return PCI_ERS_RESULT_RECOVERED;
3104 }
3105
3106 static pci_ers_result_t
3107 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
3108 {
3109         pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
3110         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3111         struct qla_hw_data *ha = base_vha->hw;
3112         int rc;
3113
3114         if (ha->mem_only)
3115                 rc = pci_enable_device_mem(pdev);
3116         else
3117                 rc = pci_enable_device(pdev);
3118
3119         if (rc) {
3120                 qla_printk(KERN_WARNING, ha,
3121                     "Can't re-enable PCI device after reset.\n");
3122
3123                 return ret;
3124         }
3125         pci_set_master(pdev);
3126
3127         if (ha->isp_ops->pci_config(base_vha))
3128                 return ret;
3129
3130         set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
3131         if (qla2x00_abort_isp(base_vha) == QLA_SUCCESS)
3132                 ret =  PCI_ERS_RESULT_RECOVERED;
3133         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
3134
3135         return ret;
3136 }
3137
3138 static void
3139 qla2xxx_pci_resume(struct pci_dev *pdev)
3140 {
3141         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3142         struct qla_hw_data *ha = base_vha->hw;
3143         int ret;
3144
3145         ret = qla2x00_wait_for_hba_online(base_vha);
3146         if (ret != QLA_SUCCESS) {
3147                 qla_printk(KERN_ERR, ha,
3148                     "the device failed to resume I/O "
3149                     "from slot/link_reset");
3150         }
3151         pci_cleanup_aer_uncorrect_error_status(pdev);
3152 }
3153
3154 static struct pci_error_handlers qla2xxx_err_handler = {
3155         .error_detected = qla2xxx_pci_error_detected,
3156         .mmio_enabled = qla2xxx_pci_mmio_enabled,
3157         .slot_reset = qla2xxx_pci_slot_reset,
3158         .resume = qla2xxx_pci_resume,
3159 };
3160
3161 static struct pci_device_id qla2xxx_pci_tbl[] = {
3162         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
3163         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
3164         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
3165         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
3166         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
3167         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
3168         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
3169         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
3170         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
3171         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) },
3172         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
3173         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
3174         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
3175         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8001) },
3176         { 0 },
3177 };
3178 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
3179
3180 static struct pci_driver qla2xxx_pci_driver = {
3181         .name           = QLA2XXX_DRIVER_NAME,
3182         .driver         = {
3183                 .owner          = THIS_MODULE,
3184         },
3185         .id_table       = qla2xxx_pci_tbl,
3186         .probe          = qla2x00_probe_one,
3187         .remove         = qla2x00_remove_one,
3188         .err_handler    = &qla2xxx_err_handler,
3189 };
3190
3191 /**
3192  * qla2x00_module_init - Module initialization.
3193  **/
3194 static int __init
3195 qla2x00_module_init(void)
3196 {
3197         int ret = 0;
3198
3199         /* Allocate cache for SRBs. */
3200         srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
3201             SLAB_HWCACHE_ALIGN, NULL);
3202         if (srb_cachep == NULL) {
3203                 printk(KERN_ERR
3204                     "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
3205                 return -ENOMEM;
3206         }
3207
3208         /* Derive version string. */
3209         strcpy(qla2x00_version_str, QLA2XXX_VERSION);
3210         if (ql2xextended_error_logging)
3211                 strcat(qla2x00_version_str, "-debug");
3212
3213         qla2xxx_transport_template =
3214             fc_attach_transport(&qla2xxx_transport_functions);
3215         if (!qla2xxx_transport_template) {
3216                 kmem_cache_destroy(srb_cachep);
3217                 return -ENODEV;
3218         }
3219         qla2xxx_transport_vport_template =
3220             fc_attach_transport(&qla2xxx_transport_vport_functions);
3221         if (!qla2xxx_transport_vport_template) {
3222                 kmem_cache_destroy(srb_cachep);
3223                 fc_release_transport(qla2xxx_transport_template);
3224                 return -ENODEV;
3225         }
3226
3227         printk(KERN_INFO "QLogic Fibre Channel HBA Driver: %s\n",
3228             qla2x00_version_str);
3229         ret = pci_register_driver(&qla2xxx_pci_driver);
3230         if (ret) {
3231                 kmem_cache_destroy(srb_cachep);
3232                 fc_release_transport(qla2xxx_transport_template);
3233                 fc_release_transport(qla2xxx_transport_vport_template);
3234         }
3235         return ret;
3236 }
3237
3238 /**
3239  * qla2x00_module_exit - Module cleanup.
3240  **/
3241 static void __exit
3242 qla2x00_module_exit(void)
3243 {
3244         pci_unregister_driver(&qla2xxx_pci_driver);
3245         qla2x00_release_firmware();
3246         kmem_cache_destroy(srb_cachep);
3247         fc_release_transport(qla2xxx_transport_template);
3248         fc_release_transport(qla2xxx_transport_vport_template);
3249 }
3250
3251 module_init(qla2x00_module_init);
3252 module_exit(qla2x00_module_exit);
3253
3254 MODULE_AUTHOR("QLogic Corporation");
3255 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
3256 MODULE_LICENSE("GPL");
3257 MODULE_VERSION(QLA2XXX_VERSION);
3258 MODULE_FIRMWARE(FW_FILE_ISP21XX);
3259 MODULE_FIRMWARE(FW_FILE_ISP22XX);
3260 MODULE_FIRMWARE(FW_FILE_ISP2300);
3261 MODULE_FIRMWARE(FW_FILE_ISP2322);
3262 MODULE_FIRMWARE(FW_FILE_ISP24XX);
3263 MODULE_FIRMWARE(FW_FILE_ISP25XX);
3264 MODULE_FIRMWARE(FW_FILE_ISP81XX);