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 qla2xxx_queuecommand(struct scsi_cmnd *cmd,
 108                 void (*fn)(struct scsi_cmnd *));
 109 static int qla2xxx_eh_abort(struct scsi_cmnd *);
 110 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
 111 static int qla2xxx_eh_target_reset(struct scsi_cmnd *);
 112 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
 113 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
 114
 115 static int qla2x00_change_queue_depth(struct scsi_device *, int);
 116 static int qla2x00_change_queue_type(struct scsi_device *, int);
 117
 118 struct scsi_host_template qla2xxx_driver_template = {
 119         .module                 = THIS_MODULE,
 120         .name                   = QLA2XXX_DRIVER_NAME,
 121         .queuecommand           = qla2xxx_queuecommand,
 122
 123         .eh_abort_handler       = qla2xxx_eh_abort,
 124         .eh_device_reset_handler = qla2xxx_eh_device_reset,
 125         .eh_target_reset_handler = qla2xxx_eh_target_reset,
 126         .eh_bus_reset_handler   = qla2xxx_eh_bus_reset,
 127         .eh_host_reset_handler  = qla2xxx_eh_host_reset,
 128
 129         .slave_configure        = qla2xxx_slave_configure,
 130
 131         .slave_alloc            = qla2xxx_slave_alloc,
 132         .slave_destroy          = qla2xxx_slave_destroy,
 133         .scan_finished          = qla2xxx_scan_finished,
 134         .scan_start             = qla2xxx_scan_start,
 135         .change_queue_depth     = qla2x00_change_queue_depth,
 136         .change_queue_type      = qla2x00_change_queue_type,
 137         .this_id                = -1,
 138         .cmd_per_lun            = 3,
 139         .use_clustering         = ENABLE_CLUSTERING,
 140         .sg_tablesize           = SG_ALL,
 141
 142         .max_sectors            = 0xFFFF,
 143         .shost_attrs            = qla2x00_host_attrs,
 144 };
 145
 146 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
 147 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
 148
 149 /* TODO Convert to inlines
 150  *
 151  * Timer routines
 152  */
 153
 154 __inline__ void
 155 qla2x00_start_timer(scsi_qla_host_t *vha, void *func, unsigned long interval)
 156 {
 157         init_timer(&vha->timer);
 158         vha->timer.expires = jiffies + interval * HZ;
 159         vha->timer.data = (unsigned long)vha;
 160         vha->timer.function = (void (*)(unsigned long))func;
 161         add_timer(&vha->timer);
 162         vha->timer_active = 1;
 163 }
 164
 165 static inline void
 166 qla2x00_restart_timer(scsi_qla_host_t *vha, unsigned long interval)
 167 {
 168         mod_timer(&vha->timer, jiffies + interval * HZ);
 169 }
 170
 171 static __inline__ void
 172 qla2x00_stop_timer(scsi_qla_host_t *vha)
 173 {
 174         del_timer_sync(&vha->timer);
 175         vha->timer_active = 0;
 176 }
 177
 178 static int qla2x00_do_dpc(void *data);
 179
 180 static void qla2x00_rst_aen(scsi_qla_host_t *);
 181
 182 static int qla2x00_mem_alloc(struct qla_hw_data *, uint16_t, uint16_t,
 183         struct req_que **, struct rsp_que **);
 184 static void qla2x00_mem_free(struct qla_hw_data *);
 185 static void qla2x00_sp_free_dma(srb_t *);
 186
 187 /* -------------------------------------------------------------------------- */
 188 static int qla2x00_alloc_queues(struct qla_hw_data *ha)
 189 {
 190         ha->req_q_map = kzalloc(sizeof(struct req_que *) * ha->max_queues,
 191                                 GFP_KERNEL);
 192         if (!ha->req_q_map) {
 193                 qla_printk(KERN_WARNING, ha,
 194                         "Unable to allocate memory for request queue ptrs\n");
 195                 goto fail_req_map;
 196         }
 197
 198         ha->rsp_q_map = kzalloc(sizeof(struct rsp_que *) * ha->max_queues,
 199                                 GFP_KERNEL);
 200         if (!ha->rsp_q_map) {
 201                 qla_printk(KERN_WARNING, ha,
 202                         "Unable to allocate memory for response queue ptrs\n");
 203                 goto fail_rsp_map;
 204         }
 205         set_bit(0, ha->rsp_qid_map);
 206         set_bit(0, ha->req_qid_map);
 207         return 1;
 208
 209 fail_rsp_map:
 210         kfree(ha->req_q_map);
 211         ha->req_q_map = NULL;
 212 fail_req_map:
 213         return -ENOMEM;
 214 }
 215
 216 static void qla2x00_free_que(struct qla_hw_data *ha, struct req_que *req,
 217         struct rsp_que *rsp)
 218 {
 219         if (rsp && rsp->ring)
 220                 dma_free_coherent(&ha->pdev->dev,
 221                 (rsp->length + 1) * sizeof(response_t),
 222                 rsp->ring, rsp->dma);
 223
 224         kfree(rsp);
 225         rsp = NULL;
 226         if (req && req->ring)
 227                 dma_free_coherent(&ha->pdev->dev,
 228                 (req->length + 1) * sizeof(request_t),
 229                 req->ring, req->dma);
 230
 231         kfree(req);
 232         req = NULL;
 233 }
 234
 235 static void qla2x00_free_queues(struct qla_hw_data *ha)
 236 {
 237         struct req_que *req;
 238         struct rsp_que *rsp;
 239         int cnt;
 240
 241         for (cnt = 0; cnt < ha->max_queues; cnt++) {
 242                 rsp = ha->rsp_q_map[cnt];
 243                 req = ha->req_q_map[cnt];
 244                 qla2x00_free_que(ha, req, rsp);
 245         }
 246         kfree(ha->rsp_q_map);
 247         ha->rsp_q_map = NULL;
 248
 249         kfree(ha->req_q_map);
 250         ha->req_q_map = NULL;
 251 }
 252
 253 static char *
 254 qla2x00_pci_info_str(struct scsi_qla_host *vha, char *str)
 255 {
 256         struct qla_hw_data *ha = vha->hw;
 257         static char *pci_bus_modes[] = {
 258                 "33", "66", "100", "133",
 259         };
 260         uint16_t pci_bus;
 261
 262         strcpy(str, "PCI");
 263         pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
 264         if (pci_bus) {
 265                 strcat(str, "-X (");
 266                 strcat(str, pci_bus_modes[pci_bus]);
 267         } else {
 268                 pci_bus = (ha->pci_attr & BIT_8) >> 8;
 269                 strcat(str, " (");
 270                 strcat(str, pci_bus_modes[pci_bus]);
 271         }
 272         strcat(str, " MHz)");
 273
 274         return (str);
 275 }
 276
 277 static char *
 278 qla24xx_pci_info_str(struct scsi_qla_host *vha, char *str)
 279 {
 280         static char *pci_bus_modes[] = { "33", "66", "100", "133", };
 281         struct qla_hw_data *ha = vha->hw;
 282         uint32_t pci_bus;
 283         int pcie_reg;
 284
 285         pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
 286         if (pcie_reg) {
 287                 char lwstr[6];
 288                 uint16_t pcie_lstat, lspeed, lwidth;
 289
 290                 pcie_reg += 0x12;
 291                 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
 292                 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
 293                 lwidth = (pcie_lstat &
 294                     (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
 295
 296                 strcpy(str, "PCIe (");
 297                 if (lspeed == 1)
 298                         strcat(str, "2.5GT/s ");
 299                 else if (lspeed == 2)
 300                         strcat(str, "5.0GT/s ");
 301                 else
 302                         strcat(str, "<unknown> ");
 303                 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
 304                 strcat(str, lwstr);
 305
 306                 return str;
 307         }
 308
 309         strcpy(str, "PCI");
 310         pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
 311         if (pci_bus == 0 || pci_bus == 8) {
 312                 strcat(str, " (");
 313                 strcat(str, pci_bus_modes[pci_bus >> 3]);
 314         } else {
 315                 strcat(str, "-X ");
 316                 if (pci_bus & BIT_2)
 317                         strcat(str, "Mode 2");
 318                 else
 319                         strcat(str, "Mode 1");
 320                 strcat(str, " (");
 321                 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
 322         }
 323         strcat(str, " MHz)");
 324
 325         return str;
 326 }
 327
 328 static char *
 329 qla2x00_fw_version_str(struct scsi_qla_host *vha, char *str)
 330 {
 331         char un_str[10];
 332         struct qla_hw_data *ha = vha->hw;
 333
 334         sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
 335             ha->fw_minor_version,
 336             ha->fw_subminor_version);
 337
 338         if (ha->fw_attributes & BIT_9) {
 339                 strcat(str, "FLX");
 340                 return (str);
 341         }
 342
 343         switch (ha->fw_attributes & 0xFF) {
 344         case 0x7:
 345                 strcat(str, "EF");
 346                 break;
 347         case 0x17:
 348                 strcat(str, "TP");
 349                 break;
 350         case 0x37:
 351                 strcat(str, "IP");
 352                 break;
 353         case 0x77:
 354                 strcat(str, "VI");
 355                 break;
 356         default:
 357                 sprintf(un_str, "(%x)", ha->fw_attributes);
 358                 strcat(str, un_str);
 359                 break;
 360         }
 361         if (ha->fw_attributes & 0x100)
 362                 strcat(str, "X");
 363
 364         return (str);
 365 }
 366
 367 static char *
 368 qla24xx_fw_version_str(struct scsi_qla_host *vha, char *str)
 369 {
 370         struct qla_hw_data *ha = vha->hw;
 371
 372         sprintf(str, "%d.%02d.%02d (%x)", ha->fw_major_version,
 373             ha->fw_minor_version, ha->fw_subminor_version, ha->fw_attributes);
 374         return str;
 375 }
 376
 377 static inline srb_t *
 378 qla2x00_get_new_sp(scsi_qla_host_t *vha, fc_port_t *fcport,
 379     struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 380 {
 381         srb_t *sp;
 382         struct qla_hw_data *ha = vha->hw;
 383
 384         sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
 385         if (!sp)
 386                 return sp;
 387
 388         sp->fcport = fcport;
 389         sp->cmd = cmd;
 390         sp->que = ha->req_q_map[0];
 391         sp->flags = 0;
 392         CMD_SP(cmd) = (void *)sp;
 393         cmd->scsi_done = done;
 394
 395         return sp;
 396 }
 397
 398 static int
 399 qla2xxx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 400 {
 401         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 402         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 403         struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
 404         struct qla_hw_data *ha = vha->hw;
 405         struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
 406         srb_t *sp;
 407         int rval;
 408
 409         if (unlikely(pci_channel_offline(ha->pdev))) {
 410                 if (ha->pdev->error_state == pci_channel_io_frozen)
 411                         cmd->result = DID_REQUEUE << 16;
 412                 else
 413                         cmd->result = DID_NO_CONNECT << 16;
 414                 goto qc24_fail_command;
 415         }
 416
 417         rval = fc_remote_port_chkready(rport);
 418         if (rval) {
 419                 cmd->result = rval;
 420                 goto qc24_fail_command;
 421         }
 422
 423         /* Close window on fcport/rport state-transitioning. */
 424         if (fcport->drport)
 425                 goto qc24_target_busy;
 426
 427         if (atomic_read(&fcport->state) != FCS_ONLINE) {
 428                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
 429                     atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
 430                         cmd->result = DID_NO_CONNECT << 16;
 431                         goto qc24_fail_command;
 432                 }
 433                 goto qc24_target_busy;
 434         }
 435
 436         spin_unlock_irq(vha->host->host_lock);
 437
 438         sp = qla2x00_get_new_sp(base_vha, fcport, cmd, done);
 439         if (!sp)
 440                 goto qc24_host_busy_lock;
 441
 442         rval = ha->isp_ops->start_scsi(sp);
 443         if (rval != QLA_SUCCESS)
 444                 goto qc24_host_busy_free_sp;
 445
 446         spin_lock_irq(vha->host->host_lock);
 447
 448         return 0;
 449
 450 qc24_host_busy_free_sp:
 451         qla2x00_sp_free_dma(sp);
 452         mempool_free(sp, ha->srb_mempool);
 453
 454 qc24_host_busy_lock:
 455         spin_lock_irq(vha->host->host_lock);
 456         return SCSI_MLQUEUE_HOST_BUSY;
 457
 458 qc24_target_busy:
 459         return SCSI_MLQUEUE_TARGET_BUSY;
 460
 461 qc24_fail_command:
 462         done(cmd);
 463
 464         return 0;
 465 }
 466
 467
 468 /*
 469  * qla2x00_eh_wait_on_command
 470  *    Waits for the command to be returned by the Firmware for some
 471  *    max time.
 472  *
 473  * Input:
 474  *    cmd = Scsi Command to wait on.
 475  *
 476  * Return:
 477  *    Not Found : 0
 478  *    Found : 1
 479  */
 480 static int
 481 qla2x00_eh_wait_on_command(struct scsi_cmnd *cmd)
 482 {
 483 #define ABORT_POLLING_PERIOD    1000
 484 #define ABORT_WAIT_ITER         ((10 * 1000) / (ABORT_POLLING_PERIOD))
 485         unsigned long wait_iter = ABORT_WAIT_ITER;
 486         int ret = QLA_SUCCESS;
 487
 488         while (CMD_SP(cmd)) {
 489                 msleep(ABORT_POLLING_PERIOD);
 490
 491                 if (--wait_iter)
 492                         break;
 493         }
 494         if (CMD_SP(cmd))
 495                 ret = QLA_FUNCTION_FAILED;
 496
 497         return ret;
 498 }
 499
 500 /*
 501  * qla2x00_wait_for_hba_online
 502  *    Wait till the HBA is online after going through
 503  *    <= MAX_RETRIES_OF_ISP_ABORT  or
 504  *    finally HBA is disabled ie marked offline
 505  *
 506  * Input:
 507  *     ha - pointer to host adapter structure
 508  *
 509  * Note:
 510  *    Does context switching-Release SPIN_LOCK
 511  *    (if any) before calling this routine.
 512  *
 513  * Return:
 514  *    Success (Adapter is online) : 0
 515  *    Failed  (Adapter is offline/disabled) : 1
 516  */
 517 int
 518 qla2x00_wait_for_hba_online(scsi_qla_host_t *vha)
 519 {
 520         int             return_status;
 521         unsigned long   wait_online;
 522         struct qla_hw_data *ha = vha->hw;
 523         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 524
 525         wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 526         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 527             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 528             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 529             ha->dpc_active) && time_before(jiffies, wait_online)) {
 530
 531                 msleep(1000);
 532         }
 533         if (base_vha->flags.online)
 534                 return_status = QLA_SUCCESS;
 535         else
 536                 return_status = QLA_FUNCTION_FAILED;
 537
 538         return (return_status);
 539 }
 540
 541 int
 542 qla2x00_wait_for_chip_reset(scsi_qla_host_t *vha)
 543 {
 544         int             return_status;
 545         unsigned long   wait_reset;
 546         struct qla_hw_data *ha = vha->hw;
 547         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 548
 549         wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 550         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 551             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 552             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 553             ha->dpc_active) && time_before(jiffies, wait_reset)) {
 554
 555                 msleep(1000);
 556
 557                 if (!test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags) &&
 558                     ha->flags.chip_reset_done)
 559                         break;
 560         }
 561         if (ha->flags.chip_reset_done)
 562                 return_status = QLA_SUCCESS;
 563         else
 564                 return_status = QLA_FUNCTION_FAILED;
 565
 566         return return_status;
 567 }
 568
 569 /*
 570  * qla2x00_wait_for_loop_ready
 571  *    Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
 572  *    to be in LOOP_READY state.
 573  * Input:
 574  *     ha - pointer to host adapter structure
 575  *
 576  * Note:
 577  *    Does context switching-Release SPIN_LOCK
 578  *    (if any) before calling this routine.
 579  *
 580  *
 581  * Return:
 582  *    Success (LOOP_READY) : 0
 583  *    Failed  (LOOP_NOT_READY) : 1
 584  */
 585 static inline int
 586 qla2x00_wait_for_loop_ready(scsi_qla_host_t *vha)
 587 {
 588         int      return_status = QLA_SUCCESS;
 589         unsigned long loop_timeout ;
 590         struct qla_hw_data *ha = vha->hw;
 591         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 592
 593         /* wait for 5 min at the max for loop to be ready */
 594         loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 595
 596         while ((!atomic_read(&base_vha->loop_down_timer) &&
 597             atomic_read(&base_vha->loop_state) == LOOP_DOWN) ||
 598             atomic_read(&base_vha->loop_state) != LOOP_READY) {
 599                 if (atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
 600                         return_status = QLA_FUNCTION_FAILED;
 601                         break;
 602                 }
 603                 msleep(1000);
 604                 if (time_after_eq(jiffies, loop_timeout)) {
 605                         return_status = QLA_FUNCTION_FAILED;
 606                         break;
 607                 }
 608         }
 609         return (return_status);
 610 }
 611
 612 void
 613 qla2x00_abort_fcport_cmds(fc_port_t *fcport)
 614 {
 615         int cnt, que, id;
 616         unsigned long flags;
 617         srb_t *sp;
 618         scsi_qla_host_t *vha = fcport->vha;
 619         struct qla_hw_data *ha = vha->hw;
 620         struct req_que *req;
 621
 622         spin_lock_irqsave(&ha->hardware_lock, flags);
 623         for (que = 0; que < QLA_MAX_HOST_QUES; que++) {
 624                 id = vha->req_ques[que];
 625                 req = ha->req_q_map[id];
 626                 if (!req)
 627                         continue;
 628                 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
 629                         sp = req->outstanding_cmds[cnt];
 630                         if (!sp)
 631                                 continue;
 632                         if (sp->fcport != fcport)
 633                                 continue;
 634
 635                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 636                         if (ha->isp_ops->abort_command(vha, sp, req)) {
 637                                 DEBUG2(qla_printk(KERN_WARNING, ha,
 638                                 "Abort failed --  %lx\n",
 639                                 sp->cmd->serial_number));
 640                         } else {
 641                                 if (qla2x00_eh_wait_on_command(sp->cmd) !=
 642                                         QLA_SUCCESS)
 643                                         DEBUG2(qla_printk(KERN_WARNING, ha,
 644                                         "Abort failed while waiting --  %lx\n",
 645                                         sp->cmd->serial_number));
 646                         }
 647                         spin_lock_irqsave(&ha->hardware_lock, flags);
 648                 }
 649         }
 650         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 651 }
 652
 653 static void
 654 qla2x00_block_error_handler(struct scsi_cmnd *cmnd)
 655 {
 656         struct Scsi_Host *shost = cmnd->device->host;
 657         struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
 658         unsigned long flags;
 659
 660         spin_lock_irqsave(shost->host_lock, flags);
 661         while (rport->port_state == FC_PORTSTATE_BLOCKED) {
 662                 spin_unlock_irqrestore(shost->host_lock, flags);
 663                 msleep(1000);
 664                 spin_lock_irqsave(shost->host_lock, flags);
 665         }
 666         spin_unlock_irqrestore(shost->host_lock, flags);
 667         return;
 668 }
 669
 670 /**************************************************************************
 671 * qla2xxx_eh_abort
 672 *
 673 * Description:
 674 *    The abort function will abort the specified command.
 675 *
 676 * Input:
 677 *    cmd = Linux SCSI command packet to be aborted.
 678 *
 679 * Returns:
 680 *    Either SUCCESS or FAILED.
 681 *
 682 * Note:
 683 *    Only return FAILED if command not returned by firmware.
 684 **************************************************************************/
 685 static int
 686 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
 687 {
 688         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 689         srb_t *sp;
 690         int ret, i;
 691         unsigned int id, lun;
 692         unsigned long serial;
 693         unsigned long flags;
 694         int wait = 0;
 695         struct qla_hw_data *ha = vha->hw;
 696         struct req_que *req;
 697         srb_t *spt;
 698
 699         qla2x00_block_error_handler(cmd);
 700
 701         if (!CMD_SP(cmd))
 702                 return SUCCESS;
 703
 704         ret = SUCCESS;
 705
 706         id = cmd->device->id;
 707         lun = cmd->device->lun;
 708         serial = cmd->serial_number;
 709         spt = (srb_t *) CMD_SP(cmd);
 710         if (!spt)
 711                 return SUCCESS;
 712         req = spt->que;
 713
 714         /* Check active list for command command. */
 715         spin_lock_irqsave(&ha->hardware_lock, flags);
 716         for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
 717                 sp = req->outstanding_cmds[i];
 718
 719                 if (sp == NULL)
 720                         continue;
 721
 722                 if (sp->cmd != cmd)
 723                         continue;
 724
 725                 DEBUG2(printk("%s(%ld): aborting sp %p from RISC."
 726                 " pid=%ld.\n", __func__, vha->host_no, sp, serial));
 727
 728                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 729                 if (ha->isp_ops->abort_command(vha, sp, req)) {
 730                         DEBUG2(printk("%s(%ld): abort_command "
 731                         "mbx failed.\n", __func__, vha->host_no));
 732                         ret = FAILED;
 733                 } else {
 734                         DEBUG3(printk("%s(%ld): abort_command "
 735                         "mbx success.\n", __func__, vha->host_no));
 736                         wait = 1;
 737                 }
 738                 spin_lock_irqsave(&ha->hardware_lock, flags);
 739                 break;
 740         }
 741         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 742
 743         /* Wait for the command to be returned. */
 744         if (wait) {
 745                 if (qla2x00_eh_wait_on_command(cmd) != QLA_SUCCESS) {
 746                         qla_printk(KERN_ERR, ha,
 747                             "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
 748                             "%x.\n", vha->host_no, id, lun, serial, ret);
 749                         ret = FAILED;
 750                 }
 751         }
 752
 753         qla_printk(KERN_INFO, ha,
 754             "scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n",
 755             vha->host_no, id, lun, wait, serial, ret);
 756
 757         return ret;
 758 }
 759
 760 enum nexus_wait_type {
 761         WAIT_HOST = 0,
 762         WAIT_TARGET,
 763         WAIT_LUN,
 764 };
 765
 766 static int
 767 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *vha, unsigned int t,
 768         unsigned int l, srb_t *sp, enum nexus_wait_type type)
 769 {
 770         int cnt, match, status;
 771         unsigned long flags;
 772         struct qla_hw_data *ha = vha->hw;
 773         struct req_que *req;
 774
 775         status = QLA_SUCCESS;
 776         if (!sp)
 777                 return status;
 778
 779         spin_lock_irqsave(&ha->hardware_lock, flags);
 780         req = sp->que;
 781         for (cnt = 1; status == QLA_SUCCESS &&
 782                 cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
 783                 sp = req->outstanding_cmds[cnt];
 784                 if (!sp)
 785                         continue;
 786
 787                 if (vha->vp_idx != sp->fcport->vha->vp_idx)
 788                         continue;
 789                 match = 0;
 790                 switch (type) {
 791                 case WAIT_HOST:
 792                         match = 1;
 793                         break;
 794                 case WAIT_TARGET:
 795                         match = sp->cmd->device->id == t;
 796                         break;
 797                 case WAIT_LUN:
 798                         match = (sp->cmd->device->id == t &&
 799                                 sp->cmd->device->lun == l);
 800                         break;
 801                 }
 802                 if (!match)
 803                         continue;
 804
 805                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 806                 status = qla2x00_eh_wait_on_command(sp->cmd);
 807                 spin_lock_irqsave(&ha->hardware_lock, flags);
 808         }
 809         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 810
 811         return status;
 812 }
 813
 814 static char *reset_errors[] = {
 815         "HBA not online",
 816         "HBA not ready",
 817         "Task management failed",
 818         "Waiting for command completions",
 819 };
 820
 821 static int
 822 __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
 823     struct scsi_cmnd *cmd, int (*do_reset)(struct fc_port *, unsigned int))
 824 {
 825         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 826         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 827         int err;
 828
 829         qla2x00_block_error_handler(cmd);
 830
 831         if (!fcport)
 832                 return FAILED;
 833
 834         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET ISSUED.\n",
 835             vha->host_no, cmd->device->id, cmd->device->lun, name);
 836
 837         err = 0;
 838         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
 839                 goto eh_reset_failed;
 840         err = 1;
 841         if (qla2x00_wait_for_loop_ready(vha) != QLA_SUCCESS)
 842                 goto eh_reset_failed;
 843         err = 2;
 844         if (do_reset(fcport, cmd->device->lun) != QLA_SUCCESS)
 845                 goto eh_reset_failed;
 846         err = 3;
 847         if (qla2x00_eh_wait_for_pending_commands(vha, cmd->device->id,
 848             cmd->device->lun, (srb_t *) CMD_SP(cmd), type) != QLA_SUCCESS)
 849                 goto eh_reset_failed;
 850
 851         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET SUCCEEDED.\n",
 852             vha->host_no, cmd->device->id, cmd->device->lun, name);
 853
 854         return SUCCESS;
 855
 856  eh_reset_failed:
 857         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET FAILED: %s.\n"
 858             , vha->host_no, cmd->device->id, cmd->device->lun, name,
 859             reset_errors[err]);
 860         return FAILED;
 861 }
 862
 863 static int
 864 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
 865 {
 866         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 867         struct qla_hw_data *ha = vha->hw;
 868
 869         return __qla2xxx_eh_generic_reset("DEVICE", WAIT_LUN, cmd,
 870             ha->isp_ops->lun_reset);
 871 }
 872
 873 static int
 874 qla2xxx_eh_target_reset(struct scsi_cmnd *cmd)
 875 {
 876         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 877         struct qla_hw_data *ha = vha->hw;
 878
 879         return __qla2xxx_eh_generic_reset("TARGET", WAIT_TARGET, cmd,
 880             ha->isp_ops->target_reset);
 881 }
 882
 883 /**************************************************************************
 884 * qla2xxx_eh_bus_reset
 885 *
 886 * Description:
 887 *    The bus reset function will reset the bus and abort any executing
 888 *    commands.
 889 *
 890 * Input:
 891 *    cmd = Linux SCSI command packet of the command that cause the
 892 *          bus reset.
 893 *
 894 * Returns:
 895 *    SUCCESS/FAILURE (defined as macro in scsi.h).
 896 *
 897 **************************************************************************/
 898 static int
 899 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
 900 {
 901         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 902         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 903         int ret = FAILED;
 904         unsigned int id, lun;
 905         unsigned long serial;
 906         srb_t *sp = (srb_t *) CMD_SP(cmd);
 907
 908         qla2x00_block_error_handler(cmd);
 909
 910         id = cmd->device->id;
 911         lun = cmd->device->lun;
 912         serial = cmd->serial_number;
 913
 914         if (!fcport)
 915                 return ret;
 916
 917         qla_printk(KERN_INFO, vha->hw,
 918             "scsi(%ld:%d:%d): BUS RESET ISSUED.\n", vha->host_no, id, lun);
 919
 920         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
 921                 DEBUG2(printk("%s failed:board disabled\n",__func__));
 922                 goto eh_bus_reset_done;
 923         }
 924
 925         if (qla2x00_wait_for_loop_ready(vha) == QLA_SUCCESS) {
 926                 if (qla2x00_loop_reset(vha) == QLA_SUCCESS)
 927                         ret = SUCCESS;
 928         }
 929         if (ret == FAILED)
 930                 goto eh_bus_reset_done;
 931
 932         /* Flush outstanding commands. */
 933         if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, sp, WAIT_HOST) !=
 934             QLA_SUCCESS)
 935                 ret = FAILED;
 936
 937 eh_bus_reset_done:
 938         qla_printk(KERN_INFO, vha->hw, "%s: reset %s\n", __func__,
 939             (ret == FAILED) ? "failed" : "succeded");
 940
 941         return ret;
 942 }
 943
 944 /**************************************************************************
 945 * qla2xxx_eh_host_reset
 946 *
 947 * Description:
 948 *    The reset function will reset the Adapter.
 949 *
 950 * Input:
 951 *      cmd = Linux SCSI command packet of the command that cause the
 952 *            adapter reset.
 953 *
 954 * Returns:
 955 *      Either SUCCESS or FAILED.
 956 *
 957 * Note:
 958 **************************************************************************/
 959 static int
 960 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
 961 {
 962         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 963         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 964         struct qla_hw_data *ha = vha->hw;
 965         int ret = FAILED;
 966         unsigned int id, lun;
 967         unsigned long serial;
 968         srb_t *sp = (srb_t *) CMD_SP(cmd);
 969         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 970
 971         qla2x00_block_error_handler(cmd);
 972
 973         id = cmd->device->id;
 974         lun = cmd->device->lun;
 975         serial = cmd->serial_number;
 976
 977         if (!fcport)
 978                 return ret;
 979
 980         qla_printk(KERN_INFO, ha,
 981             "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", vha->host_no, id, lun);
 982
 983         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
 984                 goto eh_host_reset_lock;
 985
 986         /*
 987          * Fixme-may be dpc thread is active and processing
 988          * loop_resync,so wait a while for it to
 989          * be completed and then issue big hammer.Otherwise
 990          * it may cause I/O failure as big hammer marks the
 991          * devices as lost kicking of the port_down_timer
 992          * while dpc is stuck for the mailbox to complete.
 993          */
 994         qla2x00_wait_for_loop_ready(vha);
 995         if (vha != base_vha) {
 996                 if (qla2x00_vp_abort_isp(vha))
 997                         goto eh_host_reset_lock;
 998         } else {
 999                 set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1000                 if (qla2x00_abort_isp(base_vha)) {
1001                         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1002                         /* failed. schedule dpc to try */
1003                         set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags);
1004
1005                         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
1006                                 goto eh_host_reset_lock;
1007                 }
1008                 clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1009         }
1010
1011         /* Waiting for command to be returned to OS.*/
1012         if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, sp, WAIT_HOST) ==
1013                 QLA_SUCCESS)
1014                 ret = SUCCESS;
1015
1016 eh_host_reset_lock:
1017         qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
1018             (ret == FAILED) ? "failed" : "succeded");
1019
1020         return ret;
1021 }
1022
1023 /*
1024 * qla2x00_loop_reset
1025 *      Issue loop reset.
1026 *
1027 * Input:
1028 *      ha = adapter block pointer.
1029 *
1030 * Returns:
1031 *      0 = success
1032 */
1033 int
1034 qla2x00_loop_reset(scsi_qla_host_t *vha)
1035 {
1036         int ret;
1037         struct fc_port *fcport;
1038         struct qla_hw_data *ha = vha->hw;
1039
1040         if (ha->flags.enable_lip_full_login && !vha->vp_idx) {
1041                 ret = qla2x00_full_login_lip(vha);
1042                 if (ret != QLA_SUCCESS) {
1043                         DEBUG2_3(printk("%s(%ld): failed: "
1044                             "full_login_lip=%d.\n", __func__, vha->host_no,
1045                             ret));
1046                 }
1047                 atomic_set(&vha->loop_state, LOOP_DOWN);
1048                 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1049                 qla2x00_mark_all_devices_lost(vha, 0);
1050                 qla2x00_wait_for_loop_ready(vha);
1051         }
1052
1053         if (ha->flags.enable_lip_reset && !vha->vp_idx) {
1054                 ret = qla2x00_lip_reset(vha);
1055                 if (ret != QLA_SUCCESS) {
1056                         DEBUG2_3(printk("%s(%ld): failed: "
1057                             "lip_reset=%d.\n", __func__, vha->host_no, ret));
1058                 } else
1059                         qla2x00_wait_for_loop_ready(vha);
1060         }
1061
1062         if (ha->flags.enable_target_reset) {
1063                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
1064                         if (fcport->port_type != FCT_TARGET)
1065                                 continue;
1066
1067                         ret = ha->isp_ops->target_reset(fcport, 0);
1068                         if (ret != QLA_SUCCESS) {
1069                                 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1070                                     "target_reset=%d d_id=%x.\n", __func__,
1071                                     vha->host_no, ret, fcport->d_id.b24));
1072                         }
1073                 }
1074         }
1075         /* Issue marker command only when we are going to start the I/O */
1076         vha->marker_needed = 1;
1077
1078         return QLA_SUCCESS;
1079 }
1080
1081 void
1082 qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res)
1083 {
1084         int que, cnt;
1085         unsigned long flags;
1086         srb_t *sp;
1087         struct qla_hw_data *ha = vha->hw;
1088         struct req_que *req;
1089
1090         spin_lock_irqsave(&ha->hardware_lock, flags);
1091         for (que = 0; que < ha->max_queues; que++) {
1092                 req = ha->req_q_map[que];
1093                 if (!req)
1094                         continue;
1095                 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
1096                         sp = req->outstanding_cmds[cnt];
1097                         if (sp) {
1098                                 req->outstanding_cmds[cnt] = NULL;
1099                                 sp->cmd->result = res;
1100                                 qla2x00_sp_compl(ha, sp);
1101                         }
1102                 }
1103         }
1104         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1105 }
1106
1107 static int
1108 qla2xxx_slave_alloc(struct scsi_device *sdev)
1109 {
1110         struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1111
1112         if (!rport || fc_remote_port_chkready(rport))
1113                 return -ENXIO;
1114
1115         sdev->hostdata = *(fc_port_t **)rport->dd_data;
1116
1117         return 0;
1118 }
1119
1120 static int
1121 qla2xxx_slave_configure(struct scsi_device *sdev)
1122 {
1123         scsi_qla_host_t *vha = shost_priv(sdev->host);
1124         struct qla_hw_data *ha = vha->hw;
1125         struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1126         struct req_que *req = ha->req_q_map[vha->req_ques[0]];
1127
1128         if (sdev->tagged_supported)
1129                 scsi_activate_tcq(sdev, req->max_q_depth);
1130         else
1131                 scsi_deactivate_tcq(sdev, req->max_q_depth);
1132
1133         rport->dev_loss_tmo = ha->port_down_retry_count;
1134
1135         return 0;
1136 }
1137
1138 static void
1139 qla2xxx_slave_destroy(struct scsi_device *sdev)
1140 {
1141         sdev->hostdata = NULL;
1142 }
1143
1144 static int
1145 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1146 {
1147         scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1148         return sdev->queue_depth;
1149 }
1150
1151 static int
1152 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1153 {
1154         if (sdev->tagged_supported) {
1155                 scsi_set_tag_type(sdev, tag_type);
1156                 if (tag_type)
1157                         scsi_activate_tcq(sdev, sdev->queue_depth);
1158                 else
1159                         scsi_deactivate_tcq(sdev, sdev->queue_depth);
1160         } else
1161                 tag_type = 0;
1162
1163         return tag_type;
1164 }
1165
1166 /**
1167  * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1168  * @ha: HA context
1169  *
1170  * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1171  * supported addressing method.
1172  */
1173 static void
1174 qla2x00_config_dma_addressing(struct qla_hw_data *ha)
1175 {
1176         /* Assume a 32bit DMA mask. */
1177         ha->flags.enable_64bit_addressing = 0;
1178
1179         if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1180                 /* Any upper-dword bits set? */
1181                 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1182                     !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1183                         /* Ok, a 64bit DMA mask is applicable. */
1184                         ha->flags.enable_64bit_addressing = 1;
1185                         ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1186                         ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1187                         return;
1188                 }
1189         }
1190
1191         dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1192         pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
1193 }
1194
1195 static void
1196 qla2x00_enable_intrs(struct qla_hw_data *ha)
1197 {
1198         unsigned long flags = 0;
1199         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1200
1201         spin_lock_irqsave(&ha->hardware_lock, flags);
1202         ha->interrupts_on = 1;
1203         /* enable risc and host interrupts */
1204         WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1205         RD_REG_WORD(&reg->ictrl);
1206         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1207
1208 }
1209
1210 static void
1211 qla2x00_disable_intrs(struct qla_hw_data *ha)
1212 {
1213         unsigned long flags = 0;
1214         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1215
1216         spin_lock_irqsave(&ha->hardware_lock, flags);
1217         ha->interrupts_on = 0;
1218         /* disable risc and host interrupts */
1219         WRT_REG_WORD(&reg->ictrl, 0);
1220         RD_REG_WORD(&reg->ictrl);
1221         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1222 }
1223
1224 static void
1225 qla24xx_enable_intrs(struct qla_hw_data *ha)
1226 {
1227         unsigned long flags = 0;
1228         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1229
1230         spin_lock_irqsave(&ha->hardware_lock, flags);
1231         ha->interrupts_on = 1;
1232         WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1233         RD_REG_DWORD(&reg->ictrl);
1234         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1235 }
1236
1237 static void
1238 qla24xx_disable_intrs(struct qla_hw_data *ha)
1239 {
1240         unsigned long flags = 0;
1241         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1242
1243         if (IS_NOPOLLING_TYPE(ha))
1244                 return;
1245         spin_lock_irqsave(&ha->hardware_lock, flags);
1246         ha->interrupts_on = 0;
1247         WRT_REG_DWORD(&reg->ictrl, 0);
1248         RD_REG_DWORD(&reg->ictrl);
1249         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1250 }
1251
1252 static struct isp_operations qla2100_isp_ops = {
1253         .pci_config             = qla2100_pci_config,
1254         .reset_chip             = qla2x00_reset_chip,
1255         .chip_diag              = qla2x00_chip_diag,
1256         .config_rings           = qla2x00_config_rings,
1257         .reset_adapter          = qla2x00_reset_adapter,
1258         .nvram_config           = qla2x00_nvram_config,
1259         .update_fw_options      = qla2x00_update_fw_options,
1260         .load_risc              = qla2x00_load_risc,
1261         .pci_info_str           = qla2x00_pci_info_str,
1262         .fw_version_str         = qla2x00_fw_version_str,
1263         .intr_handler           = qla2100_intr_handler,
1264         .enable_intrs           = qla2x00_enable_intrs,
1265         .disable_intrs          = qla2x00_disable_intrs,
1266         .abort_command          = qla2x00_abort_command,
1267         .target_reset           = qla2x00_abort_target,
1268         .lun_reset              = qla2x00_lun_reset,
1269         .fabric_login           = qla2x00_login_fabric,
1270         .fabric_logout          = qla2x00_fabric_logout,
1271         .calc_req_entries       = qla2x00_calc_iocbs_32,
1272         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1273         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1274         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1275         .read_nvram             = qla2x00_read_nvram_data,
1276         .write_nvram            = qla2x00_write_nvram_data,
1277         .fw_dump                = qla2100_fw_dump,
1278         .beacon_on              = NULL,
1279         .beacon_off             = NULL,
1280         .beacon_blink           = NULL,
1281         .read_optrom            = qla2x00_read_optrom_data,
1282         .write_optrom           = qla2x00_write_optrom_data,
1283         .get_flash_version      = qla2x00_get_flash_version,
1284         .start_scsi             = qla2x00_start_scsi,
1285 };
1286
1287 static struct isp_operations qla2300_isp_ops = {
1288         .pci_config             = qla2300_pci_config,
1289         .reset_chip             = qla2x00_reset_chip,
1290         .chip_diag              = qla2x00_chip_diag,
1291         .config_rings           = qla2x00_config_rings,
1292         .reset_adapter          = qla2x00_reset_adapter,
1293         .nvram_config           = qla2x00_nvram_config,
1294         .update_fw_options      = qla2x00_update_fw_options,
1295         .load_risc              = qla2x00_load_risc,
1296         .pci_info_str           = qla2x00_pci_info_str,
1297         .fw_version_str         = qla2x00_fw_version_str,
1298         .intr_handler           = qla2300_intr_handler,
1299         .enable_intrs           = qla2x00_enable_intrs,
1300         .disable_intrs          = qla2x00_disable_intrs,
1301         .abort_command          = qla2x00_abort_command,
1302         .target_reset           = qla2x00_abort_target,
1303         .lun_reset              = qla2x00_lun_reset,
1304         .fabric_login           = qla2x00_login_fabric,
1305         .fabric_logout          = qla2x00_fabric_logout,
1306         .calc_req_entries       = qla2x00_calc_iocbs_32,
1307         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1308         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1309         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1310         .read_nvram             = qla2x00_read_nvram_data,
1311         .write_nvram            = qla2x00_write_nvram_data,
1312         .fw_dump                = qla2300_fw_dump,
1313         .beacon_on              = qla2x00_beacon_on,
1314         .beacon_off             = qla2x00_beacon_off,
1315         .beacon_blink           = qla2x00_beacon_blink,
1316         .read_optrom            = qla2x00_read_optrom_data,
1317         .write_optrom           = qla2x00_write_optrom_data,
1318         .get_flash_version      = qla2x00_get_flash_version,
1319         .start_scsi             = qla2x00_start_scsi,
1320 };
1321
1322 static struct isp_operations qla24xx_isp_ops = {
1323         .pci_config             = qla24xx_pci_config,
1324         .reset_chip             = qla24xx_reset_chip,
1325         .chip_diag              = qla24xx_chip_diag,
1326         .config_rings           = qla24xx_config_rings,
1327         .reset_adapter          = qla24xx_reset_adapter,
1328         .nvram_config           = qla24xx_nvram_config,
1329         .update_fw_options      = qla24xx_update_fw_options,
1330         .load_risc              = qla24xx_load_risc,
1331         .pci_info_str           = qla24xx_pci_info_str,
1332         .fw_version_str         = qla24xx_fw_version_str,
1333         .intr_handler           = qla24xx_intr_handler,
1334         .enable_intrs           = qla24xx_enable_intrs,
1335         .disable_intrs          = qla24xx_disable_intrs,
1336         .abort_command          = qla24xx_abort_command,
1337         .target_reset           = qla24xx_abort_target,
1338         .lun_reset              = qla24xx_lun_reset,
1339         .fabric_login           = qla24xx_login_fabric,
1340         .fabric_logout          = qla24xx_fabric_logout,
1341         .calc_req_entries       = NULL,
1342         .build_iocbs            = NULL,
1343         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1344         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1345         .read_nvram             = qla24xx_read_nvram_data,
1346         .write_nvram            = qla24xx_write_nvram_data,
1347         .fw_dump                = qla24xx_fw_dump,
1348         .beacon_on              = qla24xx_beacon_on,
1349         .beacon_off             = qla24xx_beacon_off,
1350         .beacon_blink           = qla24xx_beacon_blink,
1351         .read_optrom            = qla24xx_read_optrom_data,
1352         .write_optrom           = qla24xx_write_optrom_data,
1353         .get_flash_version      = qla24xx_get_flash_version,
1354         .start_scsi             = qla24xx_start_scsi,
1355 };
1356
1357 static struct isp_operations qla25xx_isp_ops = {
1358         .pci_config             = qla25xx_pci_config,
1359         .reset_chip             = qla24xx_reset_chip,
1360         .chip_diag              = qla24xx_chip_diag,
1361         .config_rings           = qla24xx_config_rings,
1362         .reset_adapter          = qla24xx_reset_adapter,
1363         .nvram_config           = qla24xx_nvram_config,
1364         .update_fw_options      = qla24xx_update_fw_options,
1365         .load_risc              = qla24xx_load_risc,
1366         .pci_info_str           = qla24xx_pci_info_str,
1367         .fw_version_str         = qla24xx_fw_version_str,
1368         .intr_handler           = qla24xx_intr_handler,
1369         .enable_intrs           = qla24xx_enable_intrs,
1370         .disable_intrs          = qla24xx_disable_intrs,
1371         .abort_command          = qla24xx_abort_command,
1372         .target_reset           = qla24xx_abort_target,
1373         .lun_reset              = qla24xx_lun_reset,
1374         .fabric_login           = qla24xx_login_fabric,
1375         .fabric_logout          = qla24xx_fabric_logout,
1376         .calc_req_entries       = NULL,
1377         .build_iocbs            = NULL,
1378         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1379         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1380         .read_nvram             = qla25xx_read_nvram_data,
1381         .write_nvram            = qla25xx_write_nvram_data,
1382         .fw_dump                = qla25xx_fw_dump,
1383         .beacon_on              = qla24xx_beacon_on,
1384         .beacon_off             = qla24xx_beacon_off,
1385         .beacon_blink           = qla24xx_beacon_blink,
1386         .read_optrom            = qla25xx_read_optrom_data,
1387         .write_optrom           = qla24xx_write_optrom_data,
1388         .get_flash_version      = qla24xx_get_flash_version,
1389         .start_scsi             = qla24xx_start_scsi,
1390 };
1391
1392 static struct isp_operations qla81xx_isp_ops = {
1393         .pci_config             = qla25xx_pci_config,
1394         .reset_chip             = qla24xx_reset_chip,
1395         .chip_diag              = qla24xx_chip_diag,
1396         .config_rings           = qla24xx_config_rings,
1397         .reset_adapter          = qla24xx_reset_adapter,
1398         .nvram_config           = qla81xx_nvram_config,
1399         .update_fw_options      = qla81xx_update_fw_options,
1400         .load_risc              = qla81xx_load_risc,
1401         .pci_info_str           = qla24xx_pci_info_str,
1402         .fw_version_str         = qla24xx_fw_version_str,
1403         .intr_handler           = qla24xx_intr_handler,
1404         .enable_intrs           = qla24xx_enable_intrs,
1405         .disable_intrs          = qla24xx_disable_intrs,
1406         .abort_command          = qla24xx_abort_command,
1407         .target_reset           = qla24xx_abort_target,
1408         .lun_reset              = qla24xx_lun_reset,
1409         .fabric_login           = qla24xx_login_fabric,
1410         .fabric_logout          = qla24xx_fabric_logout,
1411         .calc_req_entries       = NULL,
1412         .build_iocbs            = NULL,
1413         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1414         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1415         .read_nvram             = NULL,
1416         .write_nvram            = NULL,
1417         .fw_dump                = qla81xx_fw_dump,
1418         .beacon_on              = qla24xx_beacon_on,
1419         .beacon_off             = qla24xx_beacon_off,
1420         .beacon_blink           = qla24xx_beacon_blink,
1421         .read_optrom            = qla25xx_read_optrom_data,
1422         .write_optrom           = qla24xx_write_optrom_data,
1423         .get_flash_version      = qla24xx_get_flash_version,
1424         .start_scsi             = qla24xx_start_scsi,
1425 };
1426
1427 static inline void
1428 qla2x00_set_isp_flags(struct qla_hw_data *ha)
1429 {
1430         ha->device_type = DT_EXTENDED_IDS;
1431         switch (ha->pdev->device) {
1432         case PCI_DEVICE_ID_QLOGIC_ISP2100:
1433                 ha->device_type |= DT_ISP2100;
1434                 ha->device_type &= ~DT_EXTENDED_IDS;
1435                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1436                 break;
1437         case PCI_DEVICE_ID_QLOGIC_ISP2200:
1438                 ha->device_type |= DT_ISP2200;
1439                 ha->device_type &= ~DT_EXTENDED_IDS;
1440                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1441                 break;
1442         case PCI_DEVICE_ID_QLOGIC_ISP2300:
1443                 ha->device_type |= DT_ISP2300;
1444                 ha->device_type |= DT_ZIO_SUPPORTED;
1445                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1446                 break;
1447         case PCI_DEVICE_ID_QLOGIC_ISP2312:
1448                 ha->device_type |= DT_ISP2312;
1449                 ha->device_type |= DT_ZIO_SUPPORTED;
1450                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1451                 break;
1452         case PCI_DEVICE_ID_QLOGIC_ISP2322:
1453                 ha->device_type |= DT_ISP2322;
1454                 ha->device_type |= DT_ZIO_SUPPORTED;
1455                 if (ha->pdev->subsystem_vendor == 0x1028 &&
1456                     ha->pdev->subsystem_device == 0x0170)
1457                         ha->device_type |= DT_OEM_001;
1458                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1459                 break;
1460         case PCI_DEVICE_ID_QLOGIC_ISP6312:
1461                 ha->device_type |= DT_ISP6312;
1462                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1463                 break;
1464         case PCI_DEVICE_ID_QLOGIC_ISP6322:
1465                 ha->device_type |= DT_ISP6322;
1466                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1467                 break;
1468         case PCI_DEVICE_ID_QLOGIC_ISP2422:
1469                 ha->device_type |= DT_ISP2422;
1470                 ha->device_type |= DT_ZIO_SUPPORTED;
1471                 ha->device_type |= DT_FWI2;
1472                 ha->device_type |= DT_IIDMA;
1473                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1474                 break;
1475         case PCI_DEVICE_ID_QLOGIC_ISP2432:
1476                 ha->device_type |= DT_ISP2432;
1477                 ha->device_type |= DT_ZIO_SUPPORTED;
1478                 ha->device_type |= DT_FWI2;
1479                 ha->device_type |= DT_IIDMA;
1480                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1481                 break;
1482         case PCI_DEVICE_ID_QLOGIC_ISP8432:
1483                 ha->device_type |= DT_ISP8432;
1484                 ha->device_type |= DT_ZIO_SUPPORTED;
1485                 ha->device_type |= DT_FWI2;
1486                 ha->device_type |= DT_IIDMA;
1487                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1488                 break;
1489         case PCI_DEVICE_ID_QLOGIC_ISP5422:
1490                 ha->device_type |= DT_ISP5422;
1491                 ha->device_type |= DT_FWI2;
1492                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1493                 break;
1494         case PCI_DEVICE_ID_QLOGIC_ISP5432:
1495                 ha->device_type |= DT_ISP5432;
1496                 ha->device_type |= DT_FWI2;
1497                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1498                 break;
1499         case PCI_DEVICE_ID_QLOGIC_ISP2532:
1500                 ha->device_type |= DT_ISP2532;
1501                 ha->device_type |= DT_ZIO_SUPPORTED;
1502                 ha->device_type |= DT_FWI2;
1503                 ha->device_type |= DT_IIDMA;
1504                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1505                 break;
1506         case PCI_DEVICE_ID_QLOGIC_ISP8001:
1507                 ha->device_type |= DT_ISP8001;
1508                 ha->device_type |= DT_ZIO_SUPPORTED;
1509                 ha->device_type |= DT_FWI2;
1510                 ha->device_type |= DT_IIDMA;
1511                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1512                 break;
1513         }
1514 }
1515
1516 static int
1517 qla2x00_iospace_config(struct qla_hw_data *ha)
1518 {
1519         resource_size_t pio;
1520         uint16_t msix;
1521
1522         if (pci_request_selected_regions(ha->pdev, ha->bars,
1523             QLA2XXX_DRIVER_NAME)) {
1524                 qla_printk(KERN_WARNING, ha,
1525                     "Failed to reserve PIO/MMIO regions (%s)\n",
1526                     pci_name(ha->pdev));
1527
1528                 goto iospace_error_exit;
1529         }
1530         if (!(ha->bars & 1))
1531                 goto skip_pio;
1532
1533         /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1534         pio = pci_resource_start(ha->pdev, 0);
1535         if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
1536                 if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1537                         qla_printk(KERN_WARNING, ha,
1538                             "Invalid PCI I/O region size (%s)...\n",
1539                                 pci_name(ha->pdev));
1540                         pio = 0;
1541                 }
1542         } else {
1543                 qla_printk(KERN_WARNING, ha,
1544                     "region #0 not a PIO resource (%s)...\n",
1545                     pci_name(ha->pdev));
1546                 pio = 0;
1547         }
1548         ha->pio_address = pio;
1549
1550 skip_pio:
1551         /* Use MMIO operations for all accesses. */
1552         if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
1553                 qla_printk(KERN_ERR, ha,
1554                     "region #1 not an MMIO resource (%s), aborting\n",
1555                     pci_name(ha->pdev));
1556                 goto iospace_error_exit;
1557         }
1558         if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
1559                 qla_printk(KERN_ERR, ha,
1560                     "Invalid PCI mem region size (%s), aborting\n",
1561                         pci_name(ha->pdev));
1562                 goto iospace_error_exit;
1563         }
1564
1565         ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
1566         if (!ha->iobase) {
1567                 qla_printk(KERN_ERR, ha,
1568                     "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1569
1570                 goto iospace_error_exit;
1571         }
1572
1573         /* Determine queue resources */
1574         ha->max_queues = 1;
1575         if (ql2xmaxqueues <= 1 || (!IS_QLA25XX(ha) && !IS_QLA81XX(ha)))
1576                 goto mqiobase_exit;
1577         ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 3),
1578                         pci_resource_len(ha->pdev, 3));
1579         if (ha->mqiobase) {
1580                 /* Read MSIX vector size of the board */
1581                 pci_read_config_word(ha->pdev, QLA_PCI_MSIX_CONTROL, &msix);
1582                 ha->msix_count = msix;
1583                 /* Max queues are bounded by available msix vectors */
1584                 /* queue 0 uses two msix vectors */
1585                 if (ha->msix_count - 1 < ql2xmaxqueues)
1586                         ha->max_queues = ha->msix_count - 1;
1587                 else if (ql2xmaxqueues > QLA_MQ_SIZE)
1588                         ha->max_queues = QLA_MQ_SIZE;
1589                 else
1590                         ha->max_queues = ql2xmaxqueues;
1591                 qla_printk(KERN_INFO, ha,
1592                         "MSI-X vector count: %d\n", msix);
1593         }
1594
1595 mqiobase_exit:
1596         ha->msix_count = ha->max_queues + 1;
1597         return (0);
1598
1599 iospace_error_exit:
1600         return (-ENOMEM);
1601 }
1602
1603 static void
1604 qla2xxx_scan_start(struct Scsi_Host *shost)
1605 {
1606         scsi_qla_host_t *vha = shost_priv(shost);
1607
1608         set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1609         set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1610         set_bit(RSCN_UPDATE, &vha->dpc_flags);
1611         set_bit(NPIV_CONFIG_NEEDED, &vha->dpc_flags);
1612 }
1613
1614 static int
1615 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1616 {
1617         scsi_qla_host_t *vha = shost_priv(shost);
1618
1619         if (!vha->host)
1620                 return 1;
1621         if (time > vha->hw->loop_reset_delay * HZ)
1622                 return 1;
1623
1624         return atomic_read(&vha->loop_state) == LOOP_READY;
1625 }
1626
1627 /*
1628  * PCI driver interface
1629  */
1630 static int __devinit
1631 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1632 {
1633         int     ret = -ENODEV;
1634         struct Scsi_Host *host;
1635         scsi_qla_host_t *base_vha = NULL;
1636         struct qla_hw_data *ha;
1637         char pci_info[30];
1638         char fw_str[30];
1639         struct scsi_host_template *sht;
1640         int bars, max_id, mem_only = 0;
1641         uint16_t req_length = 0, rsp_length = 0;
1642         struct req_que *req = NULL;
1643         struct rsp_que *rsp = NULL;
1644
1645         bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
1646         sht = &qla2xxx_driver_template;
1647         if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1648             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1649             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8432 ||
1650             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1651             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
1652             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532 ||
1653             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8001) {
1654                 bars = pci_select_bars(pdev, IORESOURCE_MEM);
1655                 mem_only = 1;
1656         }
1657
1658         if (mem_only) {
1659                 if (pci_enable_device_mem(pdev))
1660                         goto probe_out;
1661         } else {
1662                 if (pci_enable_device(pdev))
1663                         goto probe_out;
1664         }
1665
1666         /* This may fail but that's ok */
1667         pci_enable_pcie_error_reporting(pdev);
1668
1669         ha = kzalloc(sizeof(struct qla_hw_data), GFP_KERNEL);
1670         if (!ha) {
1671                 DEBUG(printk("Unable to allocate memory for ha\n"));
1672                 goto probe_out;
1673         }
1674         ha->pdev = pdev;
1675
1676         /* Clear our data area */
1677         ha->bars = bars;
1678         ha->mem_only = mem_only;
1679         spin_lock_init(&ha->hardware_lock);
1680
1681         /* Set ISP-type information. */
1682         qla2x00_set_isp_flags(ha);
1683         /* Configure PCI I/O space */
1684         ret = qla2x00_iospace_config(ha);
1685         if (ret)
1686                 goto probe_hw_failed;
1687
1688         qla_printk(KERN_INFO, ha,
1689             "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1690             ha->iobase);
1691
1692         ha->prev_topology = 0;
1693         ha->init_cb_size = sizeof(init_cb_t);
1694         ha->link_data_rate = PORT_SPEED_UNKNOWN;
1695         ha->optrom_size = OPTROM_SIZE_2300;
1696
1697         /* Assign ISP specific operations. */
1698         max_id = MAX_TARGETS_2200;
1699         if (IS_QLA2100(ha)) {
1700                 max_id = MAX_TARGETS_2100;
1701                 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1702                 req_length = REQUEST_ENTRY_CNT_2100;
1703                 rsp_length = RESPONSE_ENTRY_CNT_2100;
1704                 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
1705                 ha->gid_list_info_size = 4;
1706                 ha->flash_conf_off = ~0;
1707                 ha->flash_data_off = ~0;
1708                 ha->nvram_conf_off = ~0;
1709                 ha->nvram_data_off = ~0;
1710                 ha->isp_ops = &qla2100_isp_ops;
1711         } else if (IS_QLA2200(ha)) {
1712                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1713                 req_length = REQUEST_ENTRY_CNT_2200;
1714                 rsp_length = RESPONSE_ENTRY_CNT_2100;
1715                 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
1716                 ha->gid_list_info_size = 4;
1717                 ha->flash_conf_off = ~0;
1718                 ha->flash_data_off = ~0;
1719                 ha->nvram_conf_off = ~0;
1720                 ha->nvram_data_off = ~0;
1721                 ha->isp_ops = &qla2100_isp_ops;
1722         } else if (IS_QLA23XX(ha)) {
1723                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1724                 req_length = REQUEST_ENTRY_CNT_2200;
1725                 rsp_length = RESPONSE_ENTRY_CNT_2300;
1726                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
1727                 ha->gid_list_info_size = 6;
1728                 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1729                         ha->optrom_size = OPTROM_SIZE_2322;
1730                 ha->flash_conf_off = ~0;
1731                 ha->flash_data_off = ~0;
1732                 ha->nvram_conf_off = ~0;
1733                 ha->nvram_data_off = ~0;
1734                 ha->isp_ops = &qla2300_isp_ops;
1735         } else if (IS_QLA24XX_TYPE(ha)) {
1736                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1737                 req_length = REQUEST_ENTRY_CNT_24XX;
1738                 rsp_length = RESPONSE_ENTRY_CNT_2300;
1739                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
1740                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1741                 ha->gid_list_info_size = 8;
1742                 ha->optrom_size = OPTROM_SIZE_24XX;
1743                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA24XX;
1744                 ha->isp_ops = &qla24xx_isp_ops;
1745                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
1746                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
1747                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
1748                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
1749         } else if (IS_QLA25XX(ha)) {
1750                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1751                 req_length = REQUEST_ENTRY_CNT_24XX;
1752                 rsp_length = RESPONSE_ENTRY_CNT_2300;
1753                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
1754                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1755                 ha->gid_list_info_size = 8;
1756                 ha->optrom_size = OPTROM_SIZE_25XX;
1757                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
1758                 ha->isp_ops = &qla25xx_isp_ops;
1759                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
1760                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
1761                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
1762                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
1763         } else if (IS_QLA81XX(ha)) {
1764                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1765                 req_length = REQUEST_ENTRY_CNT_24XX;
1766                 rsp_length = RESPONSE_ENTRY_CNT_2300;
1767                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
1768                 ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
1769                 ha->gid_list_info_size = 8;
1770                 ha->optrom_size = OPTROM_SIZE_81XX;
1771                 ha->isp_ops = &qla81xx_isp_ops;
1772                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
1773                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
1774                 ha->nvram_conf_off = ~0;
1775                 ha->nvram_data_off = ~0;
1776         }
1777
1778         mutex_init(&ha->vport_lock);
1779         init_completion(&ha->mbx_cmd_comp);
1780         complete(&ha->mbx_cmd_comp);
1781         init_completion(&ha->mbx_intr_comp);
1782
1783         set_bit(0, (unsigned long *) ha->vp_idx_map);
1784
1785         qla2x00_config_dma_addressing(ha);
1786         ret = qla2x00_mem_alloc(ha, req_length, rsp_length, &req, &rsp);
1787         if (!ret) {
1788                 qla_printk(KERN_WARNING, ha,
1789                     "[ERROR] Failed to allocate memory for adapter\n");
1790
1791                 goto probe_hw_failed;
1792         }
1793
1794         req->max_q_depth = MAX_Q_DEPTH;
1795         if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
1796                 req->max_q_depth = ql2xmaxqdepth;
1797
1798
1799         base_vha = qla2x00_create_host(sht, ha);
1800         if (!base_vha) {
1801                 qla_printk(KERN_WARNING, ha,
1802                     "[ERROR] Failed to allocate memory for scsi_host\n");
1803
1804                 ret = -ENOMEM;
1805                 qla2x00_mem_free(ha);
1806                 qla2x00_free_que(ha, req, rsp);
1807                 goto probe_hw_failed;
1808         }
1809
1810         pci_set_drvdata(pdev, base_vha);
1811
1812         host = base_vha->host;
1813         base_vha->req_ques[0] = req->id;
1814         host->can_queue = req->length + 128;
1815         if (IS_QLA2XXX_MIDTYPE(ha))
1816                 base_vha->mgmt_svr_loop_id = 10 + base_vha->vp_idx;
1817         else
1818                 base_vha->mgmt_svr_loop_id = MANAGEMENT_SERVER +
1819                                                 base_vha->vp_idx;
1820         if (IS_QLA2100(ha))
1821                 host->sg_tablesize = 32;
1822         host->max_id = max_id;
1823         host->this_id = 255;
1824         host->cmd_per_lun = 3;
1825         host->unique_id = host->host_no;
1826         host->max_cmd_len = MAX_CMDSZ;
1827         host->max_channel = MAX_BUSES - 1;
1828         host->max_lun = MAX_LUNS;
1829         host->transportt = qla2xxx_transport_template;
1830
1831         /* Set up the irqs */
1832         ret = qla2x00_request_irqs(ha, rsp);
1833         if (ret)
1834                 goto probe_init_failed;
1835         /* Alloc arrays of request and response ring ptrs */
1836         if (!qla2x00_alloc_queues(ha)) {
1837                 qla_printk(KERN_WARNING, ha,
1838                 "[ERROR] Failed to allocate memory for queue"
1839                 " pointers\n");
1840                 goto probe_init_failed;
1841         }
1842         ha->rsp_q_map[0] = rsp;
1843         ha->req_q_map[0] = req;
1844
1845         /* FWI2-capable only. */
1846         req->req_q_in = &ha->iobase->isp24.req_q_in;
1847         req->req_q_out = &ha->iobase->isp24.req_q_out;
1848         rsp->rsp_q_in = &ha->iobase->isp24.rsp_q_in;
1849         rsp->rsp_q_out = &ha->iobase->isp24.rsp_q_out;
1850         if (ha->mqenable) {
1851                 req->req_q_in = &ha->mqiobase->isp25mq.req_q_in;
1852                 req->req_q_out = &ha->mqiobase->isp25mq.req_q_out;
1853                 rsp->rsp_q_in = &ha->mqiobase->isp25mq.rsp_q_in;
1854                 rsp->rsp_q_out =  &ha->mqiobase->isp25mq.rsp_q_out;
1855         }
1856
1857         if (qla2x00_initialize_adapter(base_vha)) {
1858                 qla_printk(KERN_WARNING, ha,
1859                     "Failed to initialize adapter\n");
1860
1861                 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1862                     "Adapter flags %x.\n",
1863                     base_vha->host_no, base_vha->device_flags));
1864
1865                 ret = -ENODEV;
1866                 goto probe_failed;
1867         }
1868
1869         /*
1870          * Startup the kernel thread for this host adapter
1871          */
1872         ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
1873                         "%s_dpc", base_vha->host_str);
1874         if (IS_ERR(ha->dpc_thread)) {
1875                 qla_printk(KERN_WARNING, ha,
1876                     "Unable to start DPC thread!\n");
1877                 ret = PTR_ERR(ha->dpc_thread);
1878                 goto probe_failed;
1879         }
1880
1881         list_add_tail(&base_vha->list, &ha->vp_list);
1882         base_vha->host->irq = ha->pdev->irq;
1883
1884         /* Initialized the timer */
1885         qla2x00_start_timer(base_vha, qla2x00_timer, WATCH_INTERVAL);
1886
1887         DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1888             base_vha->host_no, ha));
1889
1890         base_vha->flags.init_done = 1;
1891         base_vha->flags.online = 1;
1892
1893         ret = scsi_add_host(host, &pdev->dev);
1894         if (ret)
1895                 goto probe_failed;
1896
1897         ha->isp_ops->enable_intrs(ha);
1898
1899         scsi_scan_host(host);
1900
1901         qla2x00_alloc_sysfs_attr(base_vha);
1902
1903         qla2x00_init_host_attr(base_vha);
1904
1905         qla2x00_dfs_setup(base_vha);
1906
1907         qla_printk(KERN_INFO, ha, "\n"
1908             " QLogic Fibre Channel HBA Driver: %s\n"
1909             "  QLogic %s - %s\n"
1910             "  ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1911             qla2x00_version_str, ha->model_number,
1912             ha->model_desc ? ha->model_desc : "", pdev->device,
1913             ha->isp_ops->pci_info_str(base_vha, pci_info), pci_name(pdev),
1914             ha->flags.enable_64bit_addressing ? '+' : '-', base_vha->host_no,
1915             ha->isp_ops->fw_version_str(base_vha, fw_str));
1916
1917         return 0;
1918
1919 probe_init_failed:
1920         qla2x00_free_que(ha, req, rsp);
1921         ha->max_queues = 0;
1922
1923 probe_failed:
1924         if (base_vha->timer_active)
1925                 qla2x00_stop_timer(base_vha);
1926         base_vha->flags.online = 0;
1927         if (ha->dpc_thread) {
1928                 struct task_struct *t = ha->dpc_thread;
1929
1930                 ha->dpc_thread = NULL;
1931                 kthread_stop(t);
1932         }
1933
1934         qla2x00_free_device(base_vha);
1935
1936         scsi_host_put(base_vha->host);
1937
1938 probe_hw_failed:
1939         if (ha->iobase)
1940                 iounmap(ha->iobase);
1941
1942         pci_release_selected_regions(ha->pdev, ha->bars);
1943         kfree(ha);
1944         ha = NULL;
1945
1946 probe_out:
1947         pci_disable_device(pdev);
1948         return ret;
1949 }
1950
1951 static void
1952 qla2x00_remove_one(struct pci_dev *pdev)
1953 {
1954         scsi_qla_host_t *base_vha, *vha, *temp;
1955         struct qla_hw_data  *ha;
1956
1957         base_vha = pci_get_drvdata(pdev);
1958         ha = base_vha->hw;
1959
1960         list_for_each_entry_safe(vha, temp, &ha->vp_list, list) {
1961                 if (vha && vha->fc_vport)
1962                         fc_vport_terminate(vha->fc_vport);
1963         }
1964
1965         set_bit(UNLOADING, &base_vha->dpc_flags);
1966
1967         qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
1968
1969         qla2x00_dfs_remove(base_vha);
1970
1971         qla84xx_put_chip(base_vha);
1972
1973         /* Disable timer */
1974         if (base_vha->timer_active)
1975                 qla2x00_stop_timer(base_vha);
1976
1977         base_vha->flags.online = 0;
1978
1979         /* Kill the kernel thread for this host */
1980         if (ha->dpc_thread) {
1981                 struct task_struct *t = ha->dpc_thread;
1982
1983                 /*
1984                  * qla2xxx_wake_dpc checks for ->dpc_thread
1985                  * so we need to zero it out.
1986                  */
1987                 ha->dpc_thread = NULL;
1988                 kthread_stop(t);
1989         }
1990
1991         qla2x00_free_sysfs_attr(base_vha);
1992
1993         fc_remove_host(base_vha->host);
1994
1995         scsi_remove_host(base_vha->host);
1996
1997         qla2x00_free_device(base_vha);
1998
1999         scsi_host_put(base_vha->host);
2000
2001         if (ha->iobase)
2002                 iounmap(ha->iobase);
2003
2004         if (ha->mqiobase)
2005                 iounmap(ha->mqiobase);
2006
2007         pci_release_selected_regions(ha->pdev, ha->bars);
2008         kfree(ha);
2009         ha = NULL;
2010
2011         pci_disable_device(pdev);
2012         pci_set_drvdata(pdev, NULL);
2013 }
2014
2015 static void
2016 qla2x00_free_device(scsi_qla_host_t *vha)
2017 {
2018         struct qla_hw_data *ha = vha->hw;
2019
2020         if (ha->flags.fce_enabled)
2021                 qla2x00_disable_fce_trace(vha, NULL, NULL);
2022
2023         if (ha->eft)
2024                 qla2x00_disable_eft_trace(vha);
2025
2026         /* Stop currently executing firmware. */
2027         qla2x00_try_to_stop_firmware(vha);
2028
2029         /* turn-off interrupts on the card */
2030         if (ha->interrupts_on)
2031                 ha->isp_ops->disable_intrs(ha);
2032
2033         qla2x00_free_irqs(vha);
2034
2035         qla2x00_mem_free(ha);
2036
2037         qla2x00_free_queues(ha);
2038 }
2039
2040 static inline void
2041 qla2x00_schedule_rport_del(struct scsi_qla_host *vha, fc_port_t *fcport,
2042     int defer)
2043 {
2044         struct fc_rport *rport;
2045
2046         if (!fcport->rport)
2047                 return;
2048
2049         rport = fcport->rport;
2050         if (defer) {
2051                 spin_lock_irq(vha->host->host_lock);
2052                 fcport->drport = rport;
2053                 spin_unlock_irq(vha->host->host_lock);
2054                 set_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags);
2055                 qla2xxx_wake_dpc(vha);
2056         } else
2057                 fc_remote_port_delete(rport);
2058 }
2059
2060 /*
2061  * qla2x00_mark_device_lost Updates fcport state when device goes offline.
2062  *
2063  * Input: ha = adapter block pointer.  fcport = port structure pointer.
2064  *
2065  * Return: None.
2066  *
2067  * Context:
2068  */
2069 void qla2x00_mark_device_lost(scsi_qla_host_t *vha, fc_port_t *fcport,
2070     int do_login, int defer)
2071 {
2072         if (atomic_read(&fcport->state) == FCS_ONLINE &&
2073             vha->vp_idx == fcport->vp_idx) {
2074                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2075                 qla2x00_schedule_rport_del(vha, fcport, defer);
2076         }
2077         /*
2078          * We may need to retry the login, so don't change the state of the
2079          * port but do the retries.
2080          */
2081         if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
2082                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2083
2084         if (!do_login)
2085                 return;
2086
2087         if (fcport->login_retry == 0) {
2088                 fcport->login_retry = vha->hw->login_retry_count;
2089                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2090
2091                 DEBUG(printk("scsi(%ld): Port login retry: "
2092                     "%02x%02x%02x%02x%02x%02x%02x%02x, "
2093                     "id = 0x%04x retry cnt=%d\n",
2094                     vha->host_no,
2095                     fcport->port_name[0],
2096                     fcport->port_name[1],
2097                     fcport->port_name[2],
2098                     fcport->port_name[3],
2099                     fcport->port_name[4],
2100                     fcport->port_name[5],
2101                     fcport->port_name[6],
2102                     fcport->port_name[7],
2103                     fcport->loop_id,
2104                     fcport->login_retry));
2105         }
2106 }
2107
2108 /*
2109  * qla2x00_mark_all_devices_lost
2110  *      Updates fcport state when device goes offline.
2111  *
2112  * Input:
2113  *      ha = adapter block pointer.
2114  *      fcport = port structure pointer.
2115  *
2116  * Return:
2117  *      None.
2118  *
2119  * Context:
2120  */
2121 void
2122 qla2x00_mark_all_devices_lost(scsi_qla_host_t *vha, int defer)
2123 {
2124         fc_port_t *fcport;
2125
2126         list_for_each_entry(fcport, &vha->vp_fcports, list) {
2127                 if (vha->vp_idx != fcport->vp_idx)
2128                         continue;
2129                 /*
2130                  * No point in marking the device as lost, if the device is
2131                  * already DEAD.
2132                  */
2133                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
2134                         continue;
2135                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
2136                         atomic_set(&fcport->state, FCS_DEVICE_LOST);
2137                         qla2x00_schedule_rport_del(vha, fcport, defer);
2138                 } else
2139                         atomic_set(&fcport->state, FCS_DEVICE_LOST);
2140         }
2141 }
2142
2143 /*
2144 * qla2x00_mem_alloc
2145 *      Allocates adapter memory.
2146 *
2147 * Returns:
2148 *      0  = success.
2149 *      !0  = failure.
2150 */
2151 static int
2152 qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
2153         struct req_que **req, struct rsp_que **rsp)
2154 {
2155         char    name[16];
2156
2157         ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
2158                 &ha->init_cb_dma, GFP_KERNEL);
2159         if (!ha->init_cb)
2160                 goto fail;
2161
2162         ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
2163                 &ha->gid_list_dma, GFP_KERNEL);
2164         if (!ha->gid_list)
2165                 goto fail_free_init_cb;
2166
2167         ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
2168         if (!ha->srb_mempool)
2169                 goto fail_free_gid_list;
2170
2171         /* Get memory for cached NVRAM */
2172         ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
2173         if (!ha->nvram)
2174                 goto fail_free_srb_mempool;
2175
2176         snprintf(name, sizeof(name), "%s_%d", QLA2XXX_DRIVER_NAME,
2177                 ha->pdev->device);
2178         ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2179                 DMA_POOL_SIZE, 8, 0);
2180         if (!ha->s_dma_pool)
2181                 goto fail_free_nvram;
2182
2183         /* Allocate memory for SNS commands */
2184         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2185         /* Get consistent memory allocated for SNS commands */
2186                 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
2187                 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
2188                 if (!ha->sns_cmd)
2189                         goto fail_dma_pool;
2190         } else {
2191         /* Get consistent memory allocated for MS IOCB */
2192                 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2193                         &ha->ms_iocb_dma);
2194                 if (!ha->ms_iocb)
2195                         goto fail_dma_pool;
2196         /* Get consistent memory allocated for CT SNS commands */
2197                 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2198                         sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
2199                 if (!ha->ct_sns)
2200                         goto fail_free_ms_iocb;
2201         }
2202
2203         /* Allocate memory for request ring */
2204         *req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
2205         if (!*req) {
2206                 DEBUG(printk("Unable to allocate memory for req\n"));
2207                 goto fail_req;
2208         }
2209         (*req)->length = req_len;
2210         (*req)->ring = dma_alloc_coherent(&ha->pdev->dev,
2211                 ((*req)->length + 1) * sizeof(request_t),
2212                 &(*req)->dma, GFP_KERNEL);
2213         if (!(*req)->ring) {
2214                 DEBUG(printk("Unable to allocate memory for req_ring\n"));
2215                 goto fail_req_ring;
2216         }
2217         /* Allocate memory for response ring */
2218         *rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
2219         if (!*rsp) {
2220                 qla_printk(KERN_WARNING, ha,
2221                         "Unable to allocate memory for rsp\n");
2222                 goto fail_rsp;
2223         }
2224         (*rsp)->hw = ha;
2225         (*rsp)->length = rsp_len;
2226         (*rsp)->ring = dma_alloc_coherent(&ha->pdev->dev,
2227                 ((*rsp)->length + 1) * sizeof(response_t),
2228                 &(*rsp)->dma, GFP_KERNEL);
2229         if (!(*rsp)->ring) {
2230                 qla_printk(KERN_WARNING, ha,
2231                         "Unable to allocate memory for rsp_ring\n");
2232                 goto fail_rsp_ring;
2233         }
2234         (*req)->rsp = *rsp;
2235         (*rsp)->req = *req;
2236         /* Allocate memory for NVRAM data for vports */
2237         if (ha->nvram_npiv_size) {
2238                 ha->npiv_info = kzalloc(sizeof(struct qla_npiv_entry) *
2239                                         ha->nvram_npiv_size, GFP_KERNEL);
2240                 if (!ha->npiv_info) {
2241                         qla_printk(KERN_WARNING, ha,
2242                                 "Unable to allocate memory for npiv info\n");
2243                         goto fail_npiv_info;
2244                 }
2245         } else
2246                 ha->npiv_info = NULL;
2247
2248         /* Get consistent memory allocated for EX-INIT-CB. */
2249         if (IS_QLA81XX(ha)) {
2250                 ha->ex_init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2251                     &ha->ex_init_cb_dma);
2252                 if (!ha->ex_init_cb)
2253                         goto fail_ex_init_cb;
2254         }
2255
2256         INIT_LIST_HEAD(&ha->vp_list);
2257         return 1;
2258
2259 fail_ex_init_cb:
2260         kfree(ha->npiv_info);
2261 fail_npiv_info:
2262         dma_free_coherent(&ha->pdev->dev, ((*rsp)->length + 1) *
2263                 sizeof(response_t), (*rsp)->ring, (*rsp)->dma);
2264         (*rsp)->ring = NULL;
2265         (*rsp)->dma = 0;
2266 fail_rsp_ring:
2267         kfree(*rsp);
2268 fail_rsp:
2269         dma_free_coherent(&ha->pdev->dev, ((*req)->length + 1) *
2270                 sizeof(request_t), (*req)->ring, (*req)->dma);
2271         (*req)->ring = NULL;
2272         (*req)->dma = 0;
2273 fail_req_ring:
2274         kfree(*req);
2275 fail_req:
2276         dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2277                 ha->ct_sns, ha->ct_sns_dma);
2278         ha->ct_sns = NULL;
2279         ha->ct_sns_dma = 0;
2280 fail_free_ms_iocb:
2281         dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2282         ha->ms_iocb = NULL;
2283         ha->ms_iocb_dma = 0;
2284 fail_dma_pool:
2285         dma_pool_destroy(ha->s_dma_pool);
2286         ha->s_dma_pool = NULL;
2287 fail_free_nvram:
2288         kfree(ha->nvram);
2289         ha->nvram = NULL;
2290 fail_free_srb_mempool:
2291         mempool_destroy(ha->srb_mempool);
2292         ha->srb_mempool = NULL;
2293 fail_free_gid_list:
2294         dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2295         ha->gid_list_dma);
2296         ha->gid_list = NULL;
2297         ha->gid_list_dma = 0;
2298 fail_free_init_cb:
2299         dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
2300         ha->init_cb_dma);
2301         ha->init_cb = NULL;
2302         ha->init_cb_dma = 0;
2303 fail:
2304         DEBUG(printk("%s: Memory allocation failure\n", __func__));
2305         return -ENOMEM;
2306 }
2307
2308 /*
2309 * qla2x00_mem_free
2310 *      Frees all adapter allocated memory.
2311 *
2312 * Input:
2313 *      ha = adapter block pointer.
2314 */
2315 static void
2316 qla2x00_mem_free(struct qla_hw_data *ha)
2317 {
2318         if (ha->srb_mempool)
2319                 mempool_destroy(ha->srb_mempool);
2320
2321         if (ha->fce)
2322                 dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
2323                 ha->fce_dma);
2324
2325         if (ha->fw_dump) {
2326                 if (ha->eft)
2327                         dma_free_coherent(&ha->pdev->dev,
2328                         ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2329                 vfree(ha->fw_dump);
2330         }
2331
2332         if (ha->sns_cmd)
2333                 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2334                 ha->sns_cmd, ha->sns_cmd_dma);
2335
2336         if (ha->ct_sns)
2337                 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2338                 ha->ct_sns, ha->ct_sns_dma);
2339
2340         if (ha->sfp_data)
2341                 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2342
2343         if (ha->edc_data)
2344                 dma_pool_free(ha->s_dma_pool, ha->edc_data, ha->edc_data_dma);
2345
2346         if (ha->ms_iocb)
2347                 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2348
2349         if (ha->ex_init_cb)
2350                 dma_pool_free(ha->s_dma_pool, ha->ex_init_cb, ha->ex_init_cb_dma);
2351
2352         if (ha->s_dma_pool)
2353                 dma_pool_destroy(ha->s_dma_pool);
2354
2355         if (ha->gid_list)
2356                 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2357                 ha->gid_list_dma);
2358
2359         if (ha->init_cb)
2360                 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
2361                 ha->init_cb, ha->init_cb_dma);
2362         vfree(ha->optrom_buffer);
2363         kfree(ha->nvram);
2364         kfree(ha->npiv_info);
2365
2366         ha->srb_mempool = NULL;
2367         ha->eft = NULL;
2368         ha->eft_dma = 0;
2369         ha->sns_cmd = NULL;
2370         ha->sns_cmd_dma = 0;
2371         ha->ct_sns = NULL;
2372         ha->ct_sns_dma = 0;
2373         ha->ms_iocb = NULL;
2374         ha->ms_iocb_dma = 0;
2375         ha->init_cb = NULL;
2376         ha->init_cb_dma = 0;
2377         ha->ex_init_cb = NULL;
2378         ha->ex_init_cb_dma = 0;
2379
2380         ha->s_dma_pool = NULL;
2381
2382         ha->gid_list = NULL;
2383         ha->gid_list_dma = 0;
2384
2385         ha->fw_dump = NULL;
2386         ha->fw_dumped = 0;
2387         ha->fw_dump_reading = 0;
2388 }
2389
2390 struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht,
2391                                                 struct qla_hw_data *ha)
2392 {
2393         struct Scsi_Host *host;
2394         struct scsi_qla_host *vha = NULL;
2395
2396         host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
2397         if (host == NULL) {
2398                 printk(KERN_WARNING
2399                 "qla2xxx: Couldn't allocate host from scsi layer!\n");
2400                 goto fail;
2401         }
2402
2403         /* Clear our data area */
2404         vha = shost_priv(host);
2405         memset(vha, 0, sizeof(scsi_qla_host_t));
2406
2407         vha->host = host;
2408         vha->host_no = host->host_no;
2409         vha->hw = ha;
2410
2411         INIT_LIST_HEAD(&vha->vp_fcports);
2412         INIT_LIST_HEAD(&vha->work_list);
2413         INIT_LIST_HEAD(&vha->list);
2414
2415         sprintf(vha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, vha->host_no);
2416         return vha;
2417
2418 fail:
2419         return vha;
2420 }
2421
2422 static struct qla_work_evt *
2423 qla2x00_alloc_work(struct scsi_qla_host *vha, enum qla_work_type type,
2424     int locked)
2425 {
2426         struct qla_work_evt *e;
2427
2428         e = kzalloc(sizeof(struct qla_work_evt), locked ? GFP_ATOMIC:
2429             GFP_KERNEL);
2430         if (!e)
2431                 return NULL;
2432
2433         INIT_LIST_HEAD(&e->list);
2434         e->type = type;
2435         e->flags = QLA_EVT_FLAG_FREE;
2436         return e;
2437 }
2438
2439 static int
2440 qla2x00_post_work(struct scsi_qla_host *vha, struct qla_work_evt *e, int locked)
2441 {
2442         unsigned long uninitialized_var(flags);
2443         struct qla_hw_data *ha = vha->hw;
2444
2445         if (!locked)
2446                 spin_lock_irqsave(&ha->hardware_lock, flags);
2447         list_add_tail(&e->list, &vha->work_list);
2448         qla2xxx_wake_dpc(vha);
2449         if (!locked)
2450                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2451         return QLA_SUCCESS;
2452 }
2453
2454 int
2455 qla2x00_post_aen_work(struct scsi_qla_host *vha, enum fc_host_event_code code,
2456     u32 data)
2457 {
2458         struct qla_work_evt *e;
2459
2460         e = qla2x00_alloc_work(vha, QLA_EVT_AEN, 1);
2461         if (!e)
2462                 return QLA_FUNCTION_FAILED;
2463
2464         e->u.aen.code = code;
2465         e->u.aen.data = data;
2466         return qla2x00_post_work(vha, e, 1);
2467 }
2468
2469 int
2470 qla2x00_post_idc_ack_work(struct scsi_qla_host *vha, uint16_t *mb)
2471 {
2472         struct qla_work_evt *e;
2473
2474         e = qla2x00_alloc_work(vha, QLA_EVT_IDC_ACK, 1);
2475         if (!e)
2476                 return QLA_FUNCTION_FAILED;
2477
2478         memcpy(e->u.idc_ack.mb, mb, QLA_IDC_ACK_REGS * sizeof(uint16_t));
2479         return qla2x00_post_work(vha, e, 1);
2480 }
2481
2482 static void
2483 qla2x00_do_work(struct scsi_qla_host *vha)
2484 {
2485         struct qla_work_evt *e;
2486         struct qla_hw_data *ha = vha->hw;
2487
2488         spin_lock_irq(&ha->hardware_lock);
2489         while (!list_empty(&vha->work_list)) {
2490                 e = list_entry(vha->work_list.next, struct qla_work_evt, list);
2491                 list_del_init(&e->list);
2492                 spin_unlock_irq(&ha->hardware_lock);
2493
2494                 switch (e->type) {
2495                 case QLA_EVT_AEN:
2496                         fc_host_post_event(vha->host, fc_get_event_number(),
2497                             e->u.aen.code, e->u.aen.data);
2498                         break;
2499                 case QLA_EVT_IDC_ACK:
2500                         qla81xx_idc_ack(vha, e->u.idc_ack.mb);
2501                         break;
2502                 }
2503                 if (e->flags & QLA_EVT_FLAG_FREE)
2504                         kfree(e);
2505                 spin_lock_irq(&ha->hardware_lock);
2506         }
2507         spin_unlock_irq(&ha->hardware_lock);
2508 }
2509 /* Relogins all the fcports of a vport
2510  * Context: dpc thread
2511  */
2512 void qla2x00_relogin(struct scsi_qla_host *vha)
2513 {
2514         fc_port_t       *fcport;
2515         int status;
2516         uint16_t        next_loopid = 0;
2517         struct qla_hw_data *ha = vha->hw;
2518
2519         list_for_each_entry(fcport, &vha->vp_fcports, list) {
2520         /*
2521          * If the port is not ONLINE then try to login
2522          * to it if we haven't run out of retries.
2523          */
2524                 if (atomic_read(&fcport->state) !=
2525                         FCS_ONLINE && fcport->login_retry) {
2526
2527                         if (fcport->flags & FCF_FABRIC_DEVICE) {
2528                                 if (fcport->flags & FCF_TAPE_PRESENT)
2529                                         ha->isp_ops->fabric_logout(vha,
2530                                                         fcport->loop_id,
2531                                                         fcport->d_id.b.domain,
2532                                                         fcport->d_id.b.area,
2533                                                         fcport->d_id.b.al_pa);
2534
2535                                 status = qla2x00_fabric_login(vha, fcport,
2536                                                         &next_loopid);
2537                         } else
2538                                 status = qla2x00_local_device_login(vha,
2539                                                                 fcport);
2540
2541                         fcport->login_retry--;
2542                         if (status == QLA_SUCCESS) {
2543                                 fcport->old_loop_id = fcport->loop_id;
2544
2545                                 DEBUG(printk("scsi(%ld): port login OK: logged "
2546                                 "in ID 0x%x\n", vha->host_no, fcport->loop_id));
2547
2548                                 qla2x00_update_fcport(vha, fcport);
2549
2550                         } else if (status == 1) {
2551                                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2552                                 /* retry the login again */
2553                                 DEBUG(printk("scsi(%ld): Retrying"
2554                                 " %d login again loop_id 0x%x\n",
2555                                 vha->host_no, fcport->login_retry,
2556                                                 fcport->loop_id));
2557                         } else {
2558                                 fcport->login_retry = 0;
2559                         }
2560
2561                         if (fcport->login_retry == 0 && status != QLA_SUCCESS)
2562                                 fcport->loop_id = FC_NO_LOOP_ID;
2563                 }
2564                 if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
2565                         break;
2566         }
2567 }
2568
2569 /**************************************************************************
2570 * qla2x00_do_dpc
2571 *   This kernel thread is a task that is schedule by the interrupt handler
2572 *   to perform the background processing for interrupts.
2573 *
2574 * Notes:
2575 * This task always run in the context of a kernel thread.  It
2576 * is kick-off by the driver's detect code and starts up
2577 * up one per adapter. It immediately goes to sleep and waits for
2578 * some fibre event.  When either the interrupt handler or
2579 * the timer routine detects a event it will one of the task
2580 * bits then wake us up.
2581 **************************************************************************/
2582 static int
2583 qla2x00_do_dpc(void *data)
2584 {
2585         int             rval;
2586         scsi_qla_host_t *base_vha;
2587         struct qla_hw_data *ha;
2588
2589         ha = (struct qla_hw_data *)data;
2590         base_vha = pci_get_drvdata(ha->pdev);
2591
2592         set_user_nice(current, -20);
2593
2594         while (!kthread_should_stop()) {
2595                 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2596
2597                 set_current_state(TASK_INTERRUPTIBLE);
2598                 schedule();
2599                 __set_current_state(TASK_RUNNING);
2600
2601                 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2602
2603                 /* Initialization not yet finished. Don't do anything yet. */
2604                 if (!base_vha->flags.init_done)
2605                         continue;
2606
2607                 DEBUG3(printk("scsi(%ld): DPC handler\n", base_vha->host_no));
2608
2609                 ha->dpc_active = 1;
2610
2611                 if (ha->flags.mbox_busy) {
2612                         ha->dpc_active = 0;
2613                         continue;
2614                 }
2615
2616                 qla2x00_do_work(base_vha);
2617
2618                 if (test_and_clear_bit(ISP_ABORT_NEEDED,
2619                                                 &base_vha->dpc_flags)) {
2620
2621                         DEBUG(printk("scsi(%ld): dpc: sched "
2622                             "qla2x00_abort_isp ha = %p\n",
2623                             base_vha->host_no, ha));
2624                         if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2625                             &base_vha->dpc_flags))) {
2626
2627                                 if (qla2x00_abort_isp(base_vha)) {
2628                                         /* failed. retry later */
2629                                         set_bit(ISP_ABORT_NEEDED,
2630                                             &base_vha->dpc_flags);
2631                                 }
2632                                 clear_bit(ABORT_ISP_ACTIVE,
2633                                                 &base_vha->dpc_flags);
2634                         }
2635
2636                         DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2637                             base_vha->host_no));
2638                 }
2639
2640                 if (test_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags)) {
2641                         qla2x00_update_fcports(base_vha);
2642                         clear_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
2643                 }
2644
2645                 if (test_and_clear_bit(RESET_MARKER_NEEDED,
2646                                                         &base_vha->dpc_flags) &&
2647                     (!(test_and_set_bit(RESET_ACTIVE, &base_vha->dpc_flags)))) {
2648
2649                         DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2650                             base_vha->host_no));
2651
2652                         qla2x00_rst_aen(base_vha);
2653                         clear_bit(RESET_ACTIVE, &base_vha->dpc_flags);
2654                 }
2655
2656                 /* Retry each device up to login retry count */
2657                 if ((test_and_clear_bit(RELOGIN_NEEDED,
2658                                                 &base_vha->dpc_flags)) &&
2659                     !test_bit(LOOP_RESYNC_NEEDED, &base_vha->dpc_flags) &&
2660                     atomic_read(&base_vha->loop_state) != LOOP_DOWN) {
2661
2662                         DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2663                                         base_vha->host_no));
2664                         qla2x00_relogin(base_vha);
2665
2666                         DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2667                             base_vha->host_no));
2668                 }
2669
2670                 if (test_and_clear_bit(LOOP_RESYNC_NEEDED,
2671                                                         &base_vha->dpc_flags)) {
2672
2673                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2674                                 base_vha->host_no));
2675
2676                         if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2677                             &base_vha->dpc_flags))) {
2678
2679                                 rval = qla2x00_loop_resync(base_vha);
2680
2681                                 clear_bit(LOOP_RESYNC_ACTIVE,
2682                                                 &base_vha->dpc_flags);
2683                         }
2684
2685                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2686                             base_vha->host_no));
2687                 }
2688
2689                 if (test_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags) &&
2690                     atomic_read(&base_vha->loop_state) == LOOP_READY) {
2691                         clear_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags);
2692                         qla2xxx_flash_npiv_conf(base_vha);
2693                 }
2694
2695                 if (!ha->interrupts_on)
2696                         ha->isp_ops->enable_intrs(ha);
2697
2698                 if (test_and_clear_bit(BEACON_BLINK_NEEDED,
2699                                         &base_vha->dpc_flags))
2700                         ha->isp_ops->beacon_blink(base_vha);
2701
2702                 qla2x00_do_dpc_all_vps(base_vha);
2703
2704                 ha->dpc_active = 0;
2705         } /* End of while(1) */
2706
2707         DEBUG(printk("scsi(%ld): DPC handler exiting\n", base_vha->host_no));
2708
2709         /*
2710          * Make sure that nobody tries to wake us up again.
2711          */
2712         ha->dpc_active = 0;
2713
2714         return 0;
2715 }
2716
2717 void
2718 qla2xxx_wake_dpc(struct scsi_qla_host *vha)
2719 {
2720         struct qla_hw_data *ha = vha->hw;
2721         struct task_struct *t = ha->dpc_thread;
2722
2723         if (!test_bit(UNLOADING, &vha->dpc_flags) && t)
2724                 wake_up_process(t);
2725 }
2726
2727 /*
2728 *  qla2x00_rst_aen
2729 *      Processes asynchronous reset.
2730 *
2731 * Input:
2732 *      ha  = adapter block pointer.
2733 */
2734 static void
2735 qla2x00_rst_aen(scsi_qla_host_t *vha)
2736 {
2737         if (vha->flags.online && !vha->flags.reset_active &&
2738             !atomic_read(&vha->loop_down_timer) &&
2739             !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) {
2740                 do {
2741                         clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
2742
2743                         /*
2744                          * Issue marker command only when we are going to start
2745                          * the I/O.
2746                          */
2747                         vha->marker_needed = 1;
2748                 } while (!atomic_read(&vha->loop_down_timer) &&
2749                     (test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags)));
2750         }
2751 }
2752
2753 static void
2754 qla2x00_sp_free_dma(srb_t *sp)
2755 {
2756         struct scsi_cmnd *cmd = sp->cmd;
2757
2758         if (sp->flags & SRB_DMA_VALID) {
2759                 scsi_dma_unmap(cmd);
2760                 sp->flags &= ~SRB_DMA_VALID;
2761         }
2762         CMD_SP(cmd) = NULL;
2763 }
2764
2765 void
2766 qla2x00_sp_compl(struct qla_hw_data *ha, srb_t *sp)
2767 {
2768         struct scsi_cmnd *cmd = sp->cmd;
2769
2770         qla2x00_sp_free_dma(sp);
2771
2772         mempool_free(sp, ha->srb_mempool);
2773
2774         cmd->scsi_done(cmd);
2775 }
2776
2777 /**************************************************************************
2778 *   qla2x00_timer
2779 *
2780 * Description:
2781 *   One second timer
2782 *
2783 * Context: Interrupt
2784 ***************************************************************************/
2785 void
2786 qla2x00_timer(scsi_qla_host_t *vha)
2787 {
2788         unsigned long   cpu_flags = 0;
2789         fc_port_t       *fcport;
2790         int             start_dpc = 0;
2791         int             index;
2792         srb_t           *sp;
2793         int             t;
2794         struct qla_hw_data *ha = vha->hw;
2795         struct req_que *req;
2796         /*
2797          * Ports - Port down timer.
2798          *
2799          * Whenever, a port is in the LOST state we start decrementing its port
2800          * down timer every second until it reaches zero. Once  it reaches zero
2801          * the port it marked DEAD.
2802          */
2803         t = 0;
2804         list_for_each_entry(fcport, &vha->vp_fcports, list) {
2805                 if (fcport->port_type != FCT_TARGET)
2806                         continue;
2807
2808                 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2809
2810                         if (atomic_read(&fcport->port_down_timer) == 0)
2811                                 continue;
2812
2813                         if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
2814                                 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
2815
2816                         DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
2817                             "%d remaining\n",
2818                             vha->host_no,
2819                             t, atomic_read(&fcport->port_down_timer)));
2820                 }
2821                 t++;
2822         } /* End of for fcport  */
2823
2824
2825         /* Loop down handler. */
2826         if (atomic_read(&vha->loop_down_timer) > 0 &&
2827             !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
2828                 && vha->flags.online) {
2829
2830                 if (atomic_read(&vha->loop_down_timer) ==
2831                     vha->loop_down_abort_time) {
2832
2833                         DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2834                             "queues before time expire\n",
2835                             vha->host_no));
2836
2837                         if (!IS_QLA2100(ha) && vha->link_down_timeout)
2838                                 atomic_set(&vha->loop_state, LOOP_DEAD);
2839
2840                         /* Schedule an ISP abort to return any tape commands. */
2841                         /* NPIV - scan physical port only */
2842                         if (!vha->vp_idx) {
2843                                 spin_lock_irqsave(&ha->hardware_lock,
2844                                     cpu_flags);
2845                                 req = ha->req_q_map[0];
2846                                 for (index = 1;
2847                                     index < MAX_OUTSTANDING_COMMANDS;
2848                                     index++) {
2849                                         fc_port_t *sfcp;
2850
2851                                         sp = req->outstanding_cmds[index];
2852                                         if (!sp)
2853                                                 continue;
2854                                         sfcp = sp->fcport;
2855                                         if (!(sfcp->flags & FCF_TAPE_PRESENT))
2856                                                 continue;
2857
2858                                         set_bit(ISP_ABORT_NEEDED,
2859                                                         &vha->dpc_flags);
2860                                         break;
2861                                 }
2862                                 spin_unlock_irqrestore(&ha->hardware_lock,
2863                                                                 cpu_flags);
2864                         }
2865                         start_dpc++;
2866                 }
2867
2868                 /* if the loop has been down for 4 minutes, reinit adapter */
2869                 if (atomic_dec_and_test(&vha->loop_down_timer) != 0) {
2870                         if (!(vha->device_flags & DFLG_NO_CABLE) &&
2871                             !vha->vp_idx) {
2872                                 DEBUG(printk("scsi(%ld): Loop down - "
2873                                     "aborting ISP.\n",
2874                                     vha->host_no));
2875                                 qla_printk(KERN_WARNING, ha,
2876                                     "Loop down - aborting ISP.\n");
2877
2878                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2879                         }
2880                 }
2881                 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
2882                     vha->host_no,
2883                     atomic_read(&vha->loop_down_timer)));
2884         }
2885
2886         /* Check if beacon LED needs to be blinked */
2887         if (ha->beacon_blink_led == 1) {
2888                 set_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags);
2889                 start_dpc++;
2890         }
2891
2892         /* Process any deferred work. */
2893         if (!list_empty(&vha->work_list))
2894                 start_dpc++;
2895
2896         /* Schedule the DPC routine if needed */
2897         if ((test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
2898             test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) ||
2899             test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags) ||
2900             start_dpc ||
2901             test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) ||
2902             test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags) ||
2903             test_bit(VP_DPC_NEEDED, &vha->dpc_flags) ||
2904             test_bit(RELOGIN_NEEDED, &vha->dpc_flags)))
2905                 qla2xxx_wake_dpc(vha);
2906
2907         qla2x00_restart_timer(vha, WATCH_INTERVAL);
2908 }
2909
2910 /* Firmware interface routines. */
2911
2912 #define FW_BLOBS        7
2913 #define FW_ISP21XX      0
2914 #define FW_ISP22XX      1
2915 #define FW_ISP2300      2
2916 #define FW_ISP2322      3
2917 #define FW_ISP24XX      4
2918 #define FW_ISP25XX      5
2919 #define FW_ISP81XX      6
2920
2921 #define FW_FILE_ISP21XX "ql2100_fw.bin"
2922 #define FW_FILE_ISP22XX "ql2200_fw.bin"
2923 #define FW_FILE_ISP2300 "ql2300_fw.bin"
2924 #define FW_FILE_ISP2322 "ql2322_fw.bin"
2925 #define FW_FILE_ISP24XX "ql2400_fw.bin"
2926 #define FW_FILE_ISP25XX "ql2500_fw.bin"
2927 #define FW_FILE_ISP81XX "ql8100_fw.bin"
2928
2929 static DEFINE_MUTEX(qla_fw_lock);
2930
2931 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
2932         { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
2933         { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
2934         { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
2935         { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
2936         { .name = FW_FILE_ISP24XX, },
2937         { .name = FW_FILE_ISP25XX, },
2938         { .name = FW_FILE_ISP81XX, },
2939 };
2940
2941 struct fw_blob *
2942 qla2x00_request_firmware(scsi_qla_host_t *vha)
2943 {
2944         struct qla_hw_data *ha = vha->hw;
2945         struct fw_blob *blob;
2946
2947         blob = NULL;
2948         if (IS_QLA2100(ha)) {
2949                 blob = &qla_fw_blobs[FW_ISP21XX];
2950         } else if (IS_QLA2200(ha)) {
2951                 blob = &qla_fw_blobs[FW_ISP22XX];
2952         } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
2953                 blob = &qla_fw_blobs[FW_ISP2300];
2954         } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
2955                 blob = &qla_fw_blobs[FW_ISP2322];
2956         } else if (IS_QLA24XX_TYPE(ha)) {
2957                 blob = &qla_fw_blobs[FW_ISP24XX];
2958         } else if (IS_QLA25XX(ha)) {
2959                 blob = &qla_fw_blobs[FW_ISP25XX];
2960         } else if (IS_QLA81XX(ha)) {
2961                 blob = &qla_fw_blobs[FW_ISP81XX];
2962         }
2963
2964         mutex_lock(&qla_fw_lock);
2965         if (blob->fw)
2966                 goto out;
2967
2968         if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
2969                 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
2970                     "(%s).\n", vha->host_no, blob->name));
2971                 blob->fw = NULL;
2972                 blob = NULL;
2973                 goto out;
2974         }
2975
2976 out:
2977         mutex_unlock(&qla_fw_lock);
2978         return blob;
2979 }
2980
2981 static void
2982 qla2x00_release_firmware(void)
2983 {
2984         int idx;
2985
2986         mutex_lock(&qla_fw_lock);
2987         for (idx = 0; idx < FW_BLOBS; idx++)
2988                 if (qla_fw_blobs[idx].fw)
2989                         release_firmware(qla_fw_blobs[idx].fw);
2990         mutex_unlock(&qla_fw_lock);
2991 }
2992
2993 static pci_ers_result_t
2994 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
2995 {
2996         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
2997
2998         switch (state) {
2999         case pci_channel_io_normal:
3000                 return PCI_ERS_RESULT_CAN_RECOVER;
3001         case pci_channel_io_frozen:
3002                 pci_disable_device(pdev);
3003                 return PCI_ERS_RESULT_NEED_RESET;
3004         case pci_channel_io_perm_failure:
3005                 qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
3006                 return PCI_ERS_RESULT_DISCONNECT;
3007         }
3008         return PCI_ERS_RESULT_NEED_RESET;
3009 }
3010
3011 static pci_ers_result_t
3012 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
3013 {
3014         int risc_paused = 0;
3015         uint32_t stat;
3016         unsigned long flags;
3017         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3018         struct qla_hw_data *ha = base_vha->hw;
3019         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3020         struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
3021
3022         spin_lock_irqsave(&ha->hardware_lock, flags);
3023         if (IS_QLA2100(ha) || IS_QLA2200(ha)){
3024                 stat = RD_REG_DWORD(&reg->hccr);
3025                 if (stat & HCCR_RISC_PAUSE)
3026                         risc_paused = 1;
3027         } else if (IS_QLA23XX(ha)) {
3028                 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
3029                 if (stat & HSR_RISC_PAUSED)
3030                         risc_paused = 1;
3031         } else if (IS_FWI2_CAPABLE(ha)) {
3032                 stat = RD_REG_DWORD(&reg24->host_status);
3033                 if (stat & HSRX_RISC_PAUSED)
3034                         risc_paused = 1;
3035         }
3036         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3037
3038         if (risc_paused) {
3039                 qla_printk(KERN_INFO, ha, "RISC paused -- mmio_enabled, "
3040                     "Dumping firmware!\n");
3041                 ha->isp_ops->fw_dump(base_vha, 0);
3042
3043                 return PCI_ERS_RESULT_NEED_RESET;
3044         } else
3045                 return PCI_ERS_RESULT_RECOVERED;
3046 }
3047
3048 static pci_ers_result_t
3049 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
3050 {
3051         pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
3052         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3053         struct qla_hw_data *ha = base_vha->hw;
3054         int rc;
3055
3056         if (ha->mem_only)
3057                 rc = pci_enable_device_mem(pdev);
3058         else
3059                 rc = pci_enable_device(pdev);
3060
3061         if (rc) {
3062                 qla_printk(KERN_WARNING, ha,
3063                     "Can't re-enable PCI device after reset.\n");
3064
3065                 return ret;
3066         }
3067         pci_set_master(pdev);
3068
3069         if (ha->isp_ops->pci_config(base_vha))
3070                 return ret;
3071
3072         set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
3073         if (qla2x00_abort_isp(base_vha) == QLA_SUCCESS)
3074                 ret =  PCI_ERS_RESULT_RECOVERED;
3075         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
3076
3077         return ret;
3078 }
3079
3080 static void
3081 qla2xxx_pci_resume(struct pci_dev *pdev)
3082 {
3083         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3084         struct qla_hw_data *ha = base_vha->hw;
3085         int ret;
3086
3087         ret = qla2x00_wait_for_hba_online(base_vha);
3088         if (ret != QLA_SUCCESS) {
3089                 qla_printk(KERN_ERR, ha,
3090                     "the device failed to resume I/O "
3091                     "from slot/link_reset");
3092         }
3093         pci_cleanup_aer_uncorrect_error_status(pdev);
3094 }
3095
3096 static struct pci_error_handlers qla2xxx_err_handler = {
3097         .error_detected = qla2xxx_pci_error_detected,
3098         .mmio_enabled = qla2xxx_pci_mmio_enabled,
3099         .slot_reset = qla2xxx_pci_slot_reset,
3100         .resume = qla2xxx_pci_resume,
3101 };
3102
3103 static struct pci_device_id qla2xxx_pci_tbl[] = {
3104         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
3105         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
3106         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
3107         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
3108         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
3109         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
3110         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
3111         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
3112         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
3113         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) },
3114         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
3115         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
3116         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
3117         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8001) },
3118         { 0 },
3119 };
3120 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
3121
3122 static struct pci_driver qla2xxx_pci_driver = {
3123         .name           = QLA2XXX_DRIVER_NAME,
3124         .driver         = {
3125                 .owner          = THIS_MODULE,
3126         },
3127         .id_table       = qla2xxx_pci_tbl,
3128         .probe          = qla2x00_probe_one,
3129         .remove         = qla2x00_remove_one,
3130         .err_handler    = &qla2xxx_err_handler,
3131 };
3132
3133 /**
3134  * qla2x00_module_init - Module initialization.
3135  **/
3136 static int __init
3137 qla2x00_module_init(void)
3138 {
3139         int ret = 0;
3140
3141         /* Allocate cache for SRBs. */
3142         srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
3143             SLAB_HWCACHE_ALIGN, NULL);
3144         if (srb_cachep == NULL) {
3145                 printk(KERN_ERR
3146                     "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
3147                 return -ENOMEM;
3148         }
3149
3150         /* Derive version string. */
3151         strcpy(qla2x00_version_str, QLA2XXX_VERSION);
3152         if (ql2xextended_error_logging)
3153                 strcat(qla2x00_version_str, "-debug");
3154
3155         qla2xxx_transport_template =
3156             fc_attach_transport(&qla2xxx_transport_functions);
3157         if (!qla2xxx_transport_template) {
3158                 kmem_cache_destroy(srb_cachep);
3159                 return -ENODEV;
3160         }
3161         qla2xxx_transport_vport_template =
3162             fc_attach_transport(&qla2xxx_transport_vport_functions);
3163         if (!qla2xxx_transport_vport_template) {
3164                 kmem_cache_destroy(srb_cachep);
3165                 fc_release_transport(qla2xxx_transport_template);
3166                 return -ENODEV;
3167         }
3168
3169         printk(KERN_INFO "QLogic Fibre Channel HBA Driver: %s\n",
3170             qla2x00_version_str);
3171         ret = pci_register_driver(&qla2xxx_pci_driver);
3172         if (ret) {
3173                 kmem_cache_destroy(srb_cachep);
3174                 fc_release_transport(qla2xxx_transport_template);
3175                 fc_release_transport(qla2xxx_transport_vport_template);
3176         }
3177         return ret;
3178 }
3179
3180 /**
3181  * qla2x00_module_exit - Module cleanup.
3182  **/
3183 static void __exit
3184 qla2x00_module_exit(void)
3185 {
3186         pci_unregister_driver(&qla2xxx_pci_driver);
3187         qla2x00_release_firmware();
3188         kmem_cache_destroy(srb_cachep);
3189         fc_release_transport(qla2xxx_transport_template);
3190         fc_release_transport(qla2xxx_transport_vport_template);
3191 }
3192
3193 module_init(qla2x00_module_init);
3194 module_exit(qla2x00_module_exit);
3195
3196 MODULE_AUTHOR("QLogic Corporation");
3197 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
3198 MODULE_LICENSE("GPL");
3199 MODULE_VERSION(QLA2XXX_VERSION);
3200 MODULE_FIRMWARE(FW_FILE_ISP21XX);
3201 MODULE_FIRMWARE(FW_FILE_ISP22XX);
3202 MODULE_FIRMWARE(FW_FILE_ISP2300);
3203 MODULE_FIRMWARE(FW_FILE_ISP2322);
3204 MODULE_FIRMWARE(FW_FILE_ISP24XX);
3205 MODULE_FIRMWARE(FW_FILE_ISP25XX);
3206 MODULE_FIRMWARE(FW_FILE_ISP81XX);