err.no Git - linux-2.6/blob - 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
  14 #include <scsi/scsi_tcq.h>
  15 #include <scsi/scsicam.h>
  16 #include <scsi/scsi_transport.h>
  17 #include <scsi/scsi_transport_fc.h>
  18
  19 /*
  20  * Driver version
  21  */
  22 char qla2x00_version_str[40];
  23
  24 /*
  25  * SRB allocation cache
  26  */
  27 static struct kmem_cache *srb_cachep;
  28
  29 int num_hosts;
  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 static void qla2x00_config_dma_addressing(scsi_qla_host_t *ha);
  69
  70 int ql2xfdmienable;
  71 module_param(ql2xfdmienable, int, S_IRUGO|S_IRUSR);
  72 MODULE_PARM_DESC(ql2xfdmienable,
  73                 "Enables FDMI registratons "
  74                 "Default is 0 - no FDMI. 1 - perfom FDMI.");
  75
  76 #define MAX_Q_DEPTH    32
  77 static int ql2xmaxqdepth = MAX_Q_DEPTH;
  78 module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
  79 MODULE_PARM_DESC(ql2xmaxqdepth,
  80                 "Maximum queue depth to report for target devices.");
  81
  82 int ql2xqfullrampup = 120;
  83 module_param(ql2xqfullrampup, int, S_IRUGO|S_IWUSR);
  84 MODULE_PARM_DESC(ql2xqfullrampup,
  85                 "Number of seconds to wait to begin to ramp-up the queue "
  86                 "depth for a device after a queue-full condition has been "
  87                 "detected.  Default is 120 seconds.");
  88
  89 /*
  90  * SCSI host template entry points
  91  */
  92 static int qla2xxx_slave_configure(struct scsi_device * device);
  93 static int qla2xxx_slave_alloc(struct scsi_device *);
  94 static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
  95 static void qla2xxx_scan_start(struct Scsi_Host *);
  96 static void qla2xxx_slave_destroy(struct scsi_device *);
  97 static int qla2x00_queuecommand(struct scsi_cmnd *cmd,
  98                 void (*fn)(struct scsi_cmnd *));
  99 static int qla24xx_queuecommand(struct scsi_cmnd *cmd,
 100                 void (*fn)(struct scsi_cmnd *));
 101 static int qla2xxx_eh_abort(struct scsi_cmnd *);
 102 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
 103 static int qla2xxx_eh_target_reset(struct scsi_cmnd *);
 104 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
 105 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
 106
 107 static int qla2x00_change_queue_depth(struct scsi_device *, int);
 108 static int qla2x00_change_queue_type(struct scsi_device *, int);
 109
 110 static struct scsi_host_template qla2x00_driver_template = {
 111         .module                 = THIS_MODULE,
 112         .name                   = QLA2XXX_DRIVER_NAME,
 113         .queuecommand           = qla2x00_queuecommand,
 114
 115         .eh_abort_handler       = qla2xxx_eh_abort,
 116         .eh_device_reset_handler = qla2xxx_eh_device_reset,
 117         .eh_target_reset_handler = qla2xxx_eh_target_reset,
 118         .eh_bus_reset_handler   = qla2xxx_eh_bus_reset,
 119         .eh_host_reset_handler  = qla2xxx_eh_host_reset,
 120
 121         .slave_configure        = qla2xxx_slave_configure,
 122
 123         .slave_alloc            = qla2xxx_slave_alloc,
 124         .slave_destroy          = qla2xxx_slave_destroy,
 125         .scan_finished          = qla2xxx_scan_finished,
 126         .scan_start             = qla2xxx_scan_start,
 127         .change_queue_depth     = qla2x00_change_queue_depth,
 128         .change_queue_type      = qla2x00_change_queue_type,
 129         .this_id                = -1,
 130         .cmd_per_lun            = 3,
 131         .use_clustering         = ENABLE_CLUSTERING,
 132         .sg_tablesize           = SG_ALL,
 133
 134         /*
 135          * The RISC allows for each command to transfer (2^32-1) bytes of data,
 136          * which equates to 0x800000 sectors.
 137          */
 138         .max_sectors            = 0xFFFF,
 139         .shost_attrs            = qla2x00_host_attrs,
 140 };
 141
 142 struct scsi_host_template qla24xx_driver_template = {
 143         .module                 = THIS_MODULE,
 144         .name                   = QLA2XXX_DRIVER_NAME,
 145         .queuecommand           = qla24xx_queuecommand,
 146
 147         .eh_abort_handler       = qla2xxx_eh_abort,
 148         .eh_device_reset_handler = qla2xxx_eh_device_reset,
 149         .eh_target_reset_handler = qla2xxx_eh_target_reset,
 150         .eh_bus_reset_handler   = qla2xxx_eh_bus_reset,
 151         .eh_host_reset_handler  = qla2xxx_eh_host_reset,
 152
 153         .slave_configure        = qla2xxx_slave_configure,
 154
 155         .slave_alloc            = qla2xxx_slave_alloc,
 156         .slave_destroy          = qla2xxx_slave_destroy,
 157         .scan_finished          = qla2xxx_scan_finished,
 158         .scan_start             = qla2xxx_scan_start,
 159         .change_queue_depth     = qla2x00_change_queue_depth,
 160         .change_queue_type      = qla2x00_change_queue_type,
 161         .this_id                = -1,
 162         .cmd_per_lun            = 3,
 163         .use_clustering         = ENABLE_CLUSTERING,
 164         .sg_tablesize           = SG_ALL,
 165
 166         .max_sectors            = 0xFFFF,
 167         .shost_attrs            = qla2x00_host_attrs,
 168 };
 169
 170 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
 171 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
 172
 173 /* TODO Convert to inlines
 174  *
 175  * Timer routines
 176  */
 177
 178 __inline__ void
 179 qla2x00_start_timer(scsi_qla_host_t *ha, void *func, unsigned long interval)
 180 {
 181         init_timer(&ha->timer);
 182         ha->timer.expires = jiffies + interval * HZ;
 183         ha->timer.data = (unsigned long)ha;
 184         ha->timer.function = (void (*)(unsigned long))func;
 185         add_timer(&ha->timer);
 186         ha->timer_active = 1;
 187 }
 188
 189 static inline void
 190 qla2x00_restart_timer(scsi_qla_host_t *ha, unsigned long interval)
 191 {
 192         mod_timer(&ha->timer, jiffies + interval * HZ);
 193 }
 194
 195 static __inline__ void
 196 qla2x00_stop_timer(scsi_qla_host_t *ha)
 197 {
 198         del_timer_sync(&ha->timer);
 199         ha->timer_active = 0;
 200 }
 201
 202 static int qla2x00_do_dpc(void *data);
 203
 204 static void qla2x00_rst_aen(scsi_qla_host_t *);
 205
 206 static int qla2x00_mem_alloc(scsi_qla_host_t *);
 207 static void qla2x00_mem_free(scsi_qla_host_t *ha);
 208 static void qla2x00_sp_free_dma(scsi_qla_host_t *, srb_t *);
 209
 210 /* -------------------------------------------------------------------------- */
 211
 212 static char *
 213 qla2x00_pci_info_str(struct scsi_qla_host *ha, char *str)
 214 {
 215         static char *pci_bus_modes[] = {
 216                 "33", "66", "100", "133",
 217         };
 218         uint16_t pci_bus;
 219
 220         strcpy(str, "PCI");
 221         pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
 222         if (pci_bus) {
 223                 strcat(str, "-X (");
 224                 strcat(str, pci_bus_modes[pci_bus]);
 225         } else {
 226                 pci_bus = (ha->pci_attr & BIT_8) >> 8;
 227                 strcat(str, " (");
 228                 strcat(str, pci_bus_modes[pci_bus]);
 229         }
 230         strcat(str, " MHz)");
 231
 232         return (str);
 233 }
 234
 235 static char *
 236 qla24xx_pci_info_str(struct scsi_qla_host *ha, char *str)
 237 {
 238         static char *pci_bus_modes[] = { "33", "66", "100", "133", };
 239         uint32_t pci_bus;
 240         int pcie_reg;
 241
 242         pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
 243         if (pcie_reg) {
 244                 char lwstr[6];
 245                 uint16_t pcie_lstat, lspeed, lwidth;
 246
 247                 pcie_reg += 0x12;
 248                 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
 249                 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
 250                 lwidth = (pcie_lstat &
 251                     (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
 252
 253                 strcpy(str, "PCIe (");
 254                 if (lspeed == 1)
 255                         strcat(str, "2.5GT/s ");
 256                 else if (lspeed == 2)
 257                         strcat(str, "5.0GT/s ");
 258                 else
 259                         strcat(str, "<unknown> ");
 260                 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
 261                 strcat(str, lwstr);
 262
 263                 return str;
 264         }
 265
 266         strcpy(str, "PCI");
 267         pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
 268         if (pci_bus == 0 || pci_bus == 8) {
 269                 strcat(str, " (");
 270                 strcat(str, pci_bus_modes[pci_bus >> 3]);
 271         } else {
 272                 strcat(str, "-X ");
 273                 if (pci_bus & BIT_2)
 274                         strcat(str, "Mode 2");
 275                 else
 276                         strcat(str, "Mode 1");
 277                 strcat(str, " (");
 278                 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
 279         }
 280         strcat(str, " MHz)");
 281
 282         return str;
 283 }
 284
 285 static char *
 286 qla2x00_fw_version_str(struct scsi_qla_host *ha, char *str)
 287 {
 288         char un_str[10];
 289
 290         sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
 291             ha->fw_minor_version,
 292             ha->fw_subminor_version);
 293
 294         if (ha->fw_attributes & BIT_9) {
 295                 strcat(str, "FLX");
 296                 return (str);
 297         }
 298
 299         switch (ha->fw_attributes & 0xFF) {
 300         case 0x7:
 301                 strcat(str, "EF");
 302                 break;
 303         case 0x17:
 304                 strcat(str, "TP");
 305                 break;
 306         case 0x37:
 307                 strcat(str, "IP");
 308                 break;
 309         case 0x77:
 310                 strcat(str, "VI");
 311                 break;
 312         default:
 313                 sprintf(un_str, "(%x)", ha->fw_attributes);
 314                 strcat(str, un_str);
 315                 break;
 316         }
 317         if (ha->fw_attributes & 0x100)
 318                 strcat(str, "X");
 319
 320         return (str);
 321 }
 322
 323 static char *
 324 qla24xx_fw_version_str(struct scsi_qla_host *ha, char *str)
 325 {
 326         sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
 327             ha->fw_minor_version,
 328             ha->fw_subminor_version);
 329
 330         if (ha->fw_attributes & BIT_0)
 331                 strcat(str, "[Class 2] ");
 332         if (ha->fw_attributes & BIT_1)
 333                 strcat(str, "[IP] ");
 334         if (ha->fw_attributes & BIT_2)
 335                 strcat(str, "[Multi-ID] ");
 336         if (ha->fw_attributes & BIT_3)
 337                 strcat(str, "[SB-2] ");
 338         if (ha->fw_attributes & BIT_4)
 339                 strcat(str, "[T10 CRC] ");
 340         if (ha->fw_attributes & BIT_5)
 341                 strcat(str, "[VI] ");
 342         if (ha->fw_attributes & BIT_13)
 343                 strcat(str, "[Experimental]");
 344         return str;
 345 }
 346
 347 static inline srb_t *
 348 qla2x00_get_new_sp(scsi_qla_host_t *ha, fc_port_t *fcport,
 349     struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 350 {
 351         srb_t *sp;
 352
 353         sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
 354         if (!sp)
 355                 return sp;
 356
 357         sp->ha = ha;
 358         sp->fcport = fcport;
 359         sp->cmd = cmd;
 360         sp->flags = 0;
 361         CMD_SP(cmd) = (void *)sp;
 362         cmd->scsi_done = done;
 363
 364         return sp;
 365 }
 366
 367 static int
 368 qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 369 {
 370         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
 371         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 372         struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
 373         srb_t *sp;
 374         int rval;
 375
 376         if (unlikely(pci_channel_offline(ha->pdev))) {
 377                 cmd->result = DID_REQUEUE << 16;
 378                 goto qc_fail_command;
 379         }
 380
 381         rval = fc_remote_port_chkready(rport);
 382         if (rval) {
 383                 cmd->result = rval;
 384                 goto qc_fail_command;
 385         }
 386
 387         /* Close window on fcport/rport state-transitioning. */
 388         if (!*(fc_port_t **)rport->dd_data) {
 389                 cmd->result = DID_IMM_RETRY << 16;
 390                 goto qc_fail_command;
 391         }
 392
 393         if (atomic_read(&fcport->state) != FCS_ONLINE) {
 394                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
 395                     atomic_read(&ha->loop_state) == LOOP_DEAD) {
 396                         cmd->result = DID_NO_CONNECT << 16;
 397                         goto qc_fail_command;
 398                 }
 399                 goto qc_host_busy;
 400         }
 401
 402         spin_unlock_irq(ha->host->host_lock);
 403
 404         sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
 405         if (!sp)
 406                 goto qc_host_busy_lock;
 407
 408         rval = qla2x00_start_scsi(sp);
 409         if (rval != QLA_SUCCESS)
 410                 goto qc_host_busy_free_sp;
 411
 412         spin_lock_irq(ha->host->host_lock);
 413
 414         return 0;
 415
 416 qc_host_busy_free_sp:
 417         qla2x00_sp_free_dma(ha, sp);
 418         mempool_free(sp, ha->srb_mempool);
 419
 420 qc_host_busy_lock:
 421         spin_lock_irq(ha->host->host_lock);
 422
 423 qc_host_busy:
 424         return SCSI_MLQUEUE_HOST_BUSY;
 425
 426 qc_fail_command:
 427         done(cmd);
 428
 429         return 0;
 430 }
 431
 432
 433 static int
 434 qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 435 {
 436         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
 437         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 438         struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
 439         srb_t *sp;
 440         int rval;
 441         scsi_qla_host_t *pha = to_qla_parent(ha);
 442
 443         if (unlikely(pci_channel_offline(ha->pdev))) {
 444                 cmd->result = DID_REQUEUE << 16;
 445                 goto qc24_fail_command;
 446         }
 447
 448         rval = fc_remote_port_chkready(rport);
 449         if (rval) {
 450                 cmd->result = rval;
 451                 goto qc24_fail_command;
 452         }
 453
 454         /* Close window on fcport/rport state-transitioning. */
 455         if (!*(fc_port_t **)rport->dd_data) {
 456                 cmd->result = DID_IMM_RETRY << 16;
 457                 goto qc24_fail_command;
 458         }
 459
 460         if (atomic_read(&fcport->state) != FCS_ONLINE) {
 461                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
 462                     atomic_read(&pha->loop_state) == LOOP_DEAD) {
 463                         cmd->result = DID_NO_CONNECT << 16;
 464                         goto qc24_fail_command;
 465                 }
 466                 goto qc24_host_busy;
 467         }
 468
 469         spin_unlock_irq(ha->host->host_lock);
 470
 471         sp = qla2x00_get_new_sp(pha, fcport, cmd, done);
 472         if (!sp)
 473                 goto qc24_host_busy_lock;
 474
 475         rval = qla24xx_start_scsi(sp);
 476         if (rval != QLA_SUCCESS)
 477                 goto qc24_host_busy_free_sp;
 478
 479         spin_lock_irq(ha->host->host_lock);
 480
 481         return 0;
 482
 483 qc24_host_busy_free_sp:
 484         qla2x00_sp_free_dma(pha, sp);
 485         mempool_free(sp, pha->srb_mempool);
 486
 487 qc24_host_busy_lock:
 488         spin_lock_irq(ha->host->host_lock);
 489
 490 qc24_host_busy:
 491         return SCSI_MLQUEUE_HOST_BUSY;
 492
 493 qc24_fail_command:
 494         done(cmd);
 495
 496         return 0;
 497 }
 498
 499
 500 /*
 501  * qla2x00_eh_wait_on_command
 502  *    Waits for the command to be returned by the Firmware for some
 503  *    max time.
 504  *
 505  * Input:
 506  *    ha = actual ha whose done queue will contain the command
 507  *            returned by firmware.
 508  *    cmd = Scsi Command to wait on.
 509  *    flag = Abort/Reset(Bus or Device Reset)
 510  *
 511  * Return:
 512  *    Not Found : 0
 513  *    Found : 1
 514  */
 515 static int
 516 qla2x00_eh_wait_on_command(scsi_qla_host_t *ha, struct scsi_cmnd *cmd)
 517 {
 518 #define ABORT_POLLING_PERIOD    1000
 519 #define ABORT_WAIT_ITER         ((10 * 1000) / (ABORT_POLLING_PERIOD))
 520         unsigned long wait_iter = ABORT_WAIT_ITER;
 521         int ret = QLA_SUCCESS;
 522
 523         while (CMD_SP(cmd)) {
 524                 msleep(ABORT_POLLING_PERIOD);
 525
 526                 if (--wait_iter)
 527                         break;
 528         }
 529         if (CMD_SP(cmd))
 530                 ret = QLA_FUNCTION_FAILED;
 531
 532         return ret;
 533 }
 534
 535 /*
 536  * qla2x00_wait_for_hba_online
 537  *    Wait till the HBA is online after going through
 538  *    <= MAX_RETRIES_OF_ISP_ABORT  or
 539  *    finally HBA is disabled ie marked offline
 540  *
 541  * Input:
 542  *     ha - pointer to host adapter structure
 543  *
 544  * Note:
 545  *    Does context switching-Release SPIN_LOCK
 546  *    (if any) before calling this routine.
 547  *
 548  * Return:
 549  *    Success (Adapter is online) : 0
 550  *    Failed  (Adapter is offline/disabled) : 1
 551  */
 552 int
 553 qla2x00_wait_for_hba_online(scsi_qla_host_t *ha)
 554 {
 555         int             return_status;
 556         unsigned long   wait_online;
 557         scsi_qla_host_t *pha = to_qla_parent(ha);
 558
 559         wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 560         while (((test_bit(ISP_ABORT_NEEDED, &pha->dpc_flags)) ||
 561             test_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags) ||
 562             test_bit(ISP_ABORT_RETRY, &pha->dpc_flags) ||
 563             pha->dpc_active) && time_before(jiffies, wait_online)) {
 564
 565                 msleep(1000);
 566         }
 567         if (pha->flags.online)
 568                 return_status = QLA_SUCCESS;
 569         else
 570                 return_status = QLA_FUNCTION_FAILED;
 571
 572         return (return_status);
 573 }
 574
 575 /*
 576  * qla2x00_wait_for_loop_ready
 577  *    Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
 578  *    to be in LOOP_READY state.
 579  * Input:
 580  *     ha - pointer to host adapter structure
 581  *
 582  * Note:
 583  *    Does context switching-Release SPIN_LOCK
 584  *    (if any) before calling this routine.
 585  *
 586  *
 587  * Return:
 588  *    Success (LOOP_READY) : 0
 589  *    Failed  (LOOP_NOT_READY) : 1
 590  */
 591 static inline int
 592 qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha)
 593 {
 594         int      return_status = QLA_SUCCESS;
 595         unsigned long loop_timeout ;
 596         scsi_qla_host_t *pha = to_qla_parent(ha);
 597
 598         /* wait for 5 min at the max for loop to be ready */
 599         loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 600
 601         while ((!atomic_read(&pha->loop_down_timer) &&
 602             atomic_read(&pha->loop_state) == LOOP_DOWN) ||
 603             atomic_read(&pha->loop_state) != LOOP_READY) {
 604                 if (atomic_read(&pha->loop_state) == LOOP_DEAD) {
 605                         return_status = QLA_FUNCTION_FAILED;
 606                         break;
 607                 }
 608                 msleep(1000);
 609                 if (time_after_eq(jiffies, loop_timeout)) {
 610                         return_status = QLA_FUNCTION_FAILED;
 611                         break;
 612                 }
 613         }
 614         return (return_status);
 615 }
 616
 617 static void
 618 qla2x00_block_error_handler(struct scsi_cmnd *cmnd)
 619 {
 620         struct Scsi_Host *shost = cmnd->device->host;
 621         struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
 622         unsigned long flags;
 623
 624         spin_lock_irqsave(shost->host_lock, flags);
 625         while (rport->port_state == FC_PORTSTATE_BLOCKED) {
 626                 spin_unlock_irqrestore(shost->host_lock, flags);
 627                 msleep(1000);
 628                 spin_lock_irqsave(shost->host_lock, flags);
 629         }
 630         spin_unlock_irqrestore(shost->host_lock, flags);
 631         return;
 632 }
 633
 634 /**************************************************************************
 635 * qla2xxx_eh_abort
 636 *
 637 * Description:
 638 *    The abort function will abort the specified command.
 639 *
 640 * Input:
 641 *    cmd = Linux SCSI command packet to be aborted.
 642 *
 643 * Returns:
 644 *    Either SUCCESS or FAILED.
 645 *
 646 * Note:
 647 *    Only return FAILED if command not returned by firmware.
 648 **************************************************************************/
 649 static int
 650 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
 651 {
 652         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
 653         srb_t *sp;
 654         int ret, i;
 655         unsigned int id, lun;
 656         unsigned long serial;
 657         unsigned long flags;
 658         int wait = 0;
 659         scsi_qla_host_t *pha = to_qla_parent(ha);
 660
 661         qla2x00_block_error_handler(cmd);
 662
 663         if (!CMD_SP(cmd))
 664                 return SUCCESS;
 665
 666         ret = SUCCESS;
 667
 668         id = cmd->device->id;
 669         lun = cmd->device->lun;
 670         serial = cmd->serial_number;
 671
 672         /* Check active list for command command. */
 673         spin_lock_irqsave(&pha->hardware_lock, flags);
 674         for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
 675                 sp = pha->outstanding_cmds[i];
 676
 677                 if (sp == NULL)
 678                         continue;
 679
 680                 if (sp->cmd != cmd)
 681                         continue;
 682
 683                 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld.\n",
 684                     __func__, ha->host_no, sp, serial));
 685
 686                 spin_unlock_irqrestore(&pha->hardware_lock, flags);
 687                 if (ha->isp_ops->abort_command(ha, sp)) {
 688                         DEBUG2(printk("%s(%ld): abort_command "
 689                             "mbx failed.\n", __func__, ha->host_no));
 690                 } else {
 691                         DEBUG3(printk("%s(%ld): abort_command "
 692                             "mbx success.\n", __func__, ha->host_no));
 693                         wait = 1;
 694                 }
 695                 spin_lock_irqsave(&pha->hardware_lock, flags);
 696
 697                 break;
 698         }
 699         spin_unlock_irqrestore(&pha->hardware_lock, flags);
 700
 701         /* Wait for the command to be returned. */
 702         if (wait) {
 703                 if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) {
 704                         qla_printk(KERN_ERR, ha,
 705                             "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
 706                             "%x.\n", ha->host_no, id, lun, serial, ret);
 707                         ret = FAILED;
 708                 }
 709         }
 710
 711         qla_printk(KERN_INFO, ha,
 712             "scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n",
 713             ha->host_no, id, lun, wait, serial, ret);
 714
 715         return ret;
 716 }
 717
 718 enum nexus_wait_type {
 719         WAIT_HOST = 0,
 720         WAIT_TARGET,
 721         WAIT_LUN,
 722 };
 723
 724 static int
 725 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha, unsigned int t,
 726     unsigned int l, enum nexus_wait_type type)
 727 {
 728         int cnt, match, status;
 729         srb_t *sp;
 730         unsigned long flags;
 731         scsi_qla_host_t *pha = to_qla_parent(ha);
 732
 733         status = QLA_SUCCESS;
 734         spin_lock_irqsave(&pha->hardware_lock, flags);
 735         for (cnt = 1; status == QLA_SUCCESS && cnt < MAX_OUTSTANDING_COMMANDS;
 736             cnt++) {
 737                 sp = pha->outstanding_cmds[cnt];
 738                 if (!sp)
 739                         continue;
 740                 if (ha->vp_idx != sp->ha->vp_idx)
 741                         continue;
 742                 match = 0;
 743                 switch (type) {
 744                 case WAIT_HOST:
 745                         match = 1;
 746                         break;
 747                 case WAIT_TARGET:
 748                         match = sp->cmd->device->id == t;
 749                         break;
 750                 case WAIT_LUN:
 751                         match = (sp->cmd->device->id == t &&
 752                             sp->cmd->device->lun == l);
 753                         break;
 754                 }
 755                 if (!match)
 756                         continue;
 757
 758                 spin_unlock_irqrestore(&pha->hardware_lock, flags);
 759                 status = qla2x00_eh_wait_on_command(ha, sp->cmd);
 760                 spin_lock_irqsave(&pha->hardware_lock, flags);
 761         }
 762         spin_unlock_irqrestore(&pha->hardware_lock, flags);
 763
 764         return status;
 765 }
 766
 767 static char *reset_errors[] = {
 768         "HBA not online",
 769         "HBA not ready",
 770         "Task management failed",
 771         "Waiting for command completions",
 772 };
 773
 774 static int
 775 __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
 776     struct scsi_cmnd *cmd, int (*do_reset)(struct fc_port *, unsigned int))
 777 {
 778         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
 779         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 780         int err;
 781
 782         qla2x00_block_error_handler(cmd);
 783
 784         if (!fcport)
 785                 return FAILED;
 786
 787         qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d): %s RESET ISSUED.\n",
 788             ha->host_no, cmd->device->id, cmd->device->lun, name);
 789
 790         err = 0;
 791         if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
 792                 goto eh_reset_failed;
 793         err = 1;
 794         if (qla2x00_wait_for_loop_ready(ha) != QLA_SUCCESS)
 795                 goto eh_reset_failed;
 796         err = 2;
 797         if (do_reset(fcport, cmd->device->lun) != QLA_SUCCESS)
 798                 goto eh_reset_failed;
 799         err = 3;
 800         if (qla2x00_eh_wait_for_pending_commands(ha, cmd->device->id,
 801             cmd->device->lun, type) != QLA_SUCCESS)
 802                 goto eh_reset_failed;
 803
 804         qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d): %s RESET SUCCEEDED.\n",
 805             ha->host_no, cmd->device->id, cmd->device->lun, name);
 806
 807         return SUCCESS;
 808
 809  eh_reset_failed:
 810         qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d): %s RESET FAILED: %s.\n",
 811             ha->host_no, cmd->device->id, cmd->device->lun, name,
 812             reset_errors[err]);
 813         return FAILED;
 814 }
 815
 816 static int
 817 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
 818 {
 819         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
 820
 821         return __qla2xxx_eh_generic_reset("DEVICE", WAIT_LUN, cmd,
 822             ha->isp_ops->lun_reset);
 823 }
 824
 825 static int
 826 qla2xxx_eh_target_reset(struct scsi_cmnd *cmd)
 827 {
 828         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
 829
 830         return __qla2xxx_eh_generic_reset("TARGET", WAIT_TARGET, cmd,
 831             ha->isp_ops->target_reset);
 832 }
 833
 834 /**************************************************************************
 835 * qla2xxx_eh_bus_reset
 836 *
 837 * Description:
 838 *    The bus reset function will reset the bus and abort any executing
 839 *    commands.
 840 *
 841 * Input:
 842 *    cmd = Linux SCSI command packet of the command that cause the
 843 *          bus reset.
 844 *
 845 * Returns:
 846 *    SUCCESS/FAILURE (defined as macro in scsi.h).
 847 *
 848 **************************************************************************/
 849 static int
 850 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
 851 {
 852         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
 853         scsi_qla_host_t *pha = to_qla_parent(ha);
 854         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 855         int ret = FAILED;
 856         unsigned int id, lun;
 857         unsigned long serial;
 858
 859         qla2x00_block_error_handler(cmd);
 860
 861         id = cmd->device->id;
 862         lun = cmd->device->lun;
 863         serial = cmd->serial_number;
 864
 865         if (!fcport)
 866                 return ret;
 867
 868         qla_printk(KERN_INFO, ha,
 869             "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun);
 870
 871         if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) {
 872                 DEBUG2(printk("%s failed:board disabled\n",__func__));
 873                 goto eh_bus_reset_done;
 874         }
 875
 876         if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
 877                 if (qla2x00_loop_reset(ha) == QLA_SUCCESS)
 878                         ret = SUCCESS;
 879         }
 880         if (ret == FAILED)
 881                 goto eh_bus_reset_done;
 882
 883         /* Flush outstanding commands. */
 884         if (qla2x00_eh_wait_for_pending_commands(pha, 0, 0, WAIT_HOST) !=
 885             QLA_SUCCESS)
 886                 ret = FAILED;
 887
 888 eh_bus_reset_done:
 889         qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
 890             (ret == FAILED) ? "failed" : "succeded");
 891
 892         return ret;
 893 }
 894
 895 /**************************************************************************
 896 * qla2xxx_eh_host_reset
 897 *
 898 * Description:
 899 *    The reset function will reset the Adapter.
 900 *
 901 * Input:
 902 *      cmd = Linux SCSI command packet of the command that cause the
 903 *            adapter reset.
 904 *
 905 * Returns:
 906 *      Either SUCCESS or FAILED.
 907 *
 908 * Note:
 909 **************************************************************************/
 910 static int
 911 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
 912 {
 913         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
 914         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 915         int ret = FAILED;
 916         unsigned int id, lun;
 917         unsigned long serial;
 918         scsi_qla_host_t *pha = to_qla_parent(ha);
 919
 920         qla2x00_block_error_handler(cmd);
 921
 922         id = cmd->device->id;
 923         lun = cmd->device->lun;
 924         serial = cmd->serial_number;
 925
 926         if (!fcport)
 927                 return ret;
 928
 929         qla_printk(KERN_INFO, ha,
 930             "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun);
 931
 932         if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
 933                 goto eh_host_reset_lock;
 934
 935         /*
 936          * Fixme-may be dpc thread is active and processing
 937          * loop_resync,so wait a while for it to
 938          * be completed and then issue big hammer.Otherwise
 939          * it may cause I/O failure as big hammer marks the
 940          * devices as lost kicking of the port_down_timer
 941          * while dpc is stuck for the mailbox to complete.
 942          */
 943         qla2x00_wait_for_loop_ready(ha);
 944         set_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
 945         if (qla2x00_abort_isp(pha)) {
 946                 clear_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
 947                 /* failed. schedule dpc to try */
 948                 set_bit(ISP_ABORT_NEEDED, &pha->dpc_flags);
 949
 950                 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
 951                         goto eh_host_reset_lock;
 952         }
 953         clear_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
 954
 955         /* Waiting for our command in done_queue to be returned to OS.*/
 956         if (qla2x00_eh_wait_for_pending_commands(pha, 0, 0, WAIT_HOST) ==
 957             QLA_SUCCESS)
 958                 ret = SUCCESS;
 959
 960         if (ha->parent)
 961                 qla2x00_vp_abort_isp(ha);
 962
 963 eh_host_reset_lock:
 964         qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
 965             (ret == FAILED) ? "failed" : "succeded");
 966
 967         return ret;
 968 }
 969
 970 /*
 971 * qla2x00_loop_reset
 972 *      Issue loop reset.
 973 *
 974 * Input:
 975 *      ha = adapter block pointer.
 976 *
 977 * Returns:
 978 *      0 = success
 979 */
 980 int
 981 qla2x00_loop_reset(scsi_qla_host_t *ha)
 982 {
 983         int ret;
 984         struct fc_port *fcport;
 985
 986         if (ha->flags.enable_lip_full_login) {
 987                 ret = qla2x00_full_login_lip(ha);
 988                 if (ret != QLA_SUCCESS) {
 989                         DEBUG2_3(printk("%s(%ld): bus_reset failed: "
 990                             "full_login_lip=%d.\n", __func__, ha->host_no,
 991                             ret));
 992                 }
 993                 atomic_set(&ha->loop_state, LOOP_DOWN);
 994                 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
 995                 qla2x00_mark_all_devices_lost(ha, 0);
 996                 qla2x00_wait_for_loop_ready(ha);
 997         }
 998
 999         if (ha->flags.enable_lip_reset) {
1000                 ret = qla2x00_lip_reset(ha);
1001                 if (ret != QLA_SUCCESS) {
1002                         DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1003                             "lip_reset=%d.\n", __func__, ha->host_no, ret));
1004                 }
1005                 qla2x00_wait_for_loop_ready(ha);
1006         }
1007
1008         if (ha->flags.enable_target_reset) {
1009                 list_for_each_entry(fcport, &ha->fcports, list) {
1010                         if (fcport->port_type != FCT_TARGET)
1011                                 continue;
1012
1013                         ret = ha->isp_ops->target_reset(fcport, 0);
1014                         if (ret != QLA_SUCCESS) {
1015                                 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1016                                     "target_reset=%d d_id=%x.\n", __func__,
1017                                     ha->host_no, ret, fcport->d_id.b24));
1018                         }
1019                 }
1020         }
1021
1022         /* Issue marker command only when we are going to start the I/O */
1023         ha->marker_needed = 1;
1024
1025         return QLA_SUCCESS;
1026 }
1027
1028 void
1029 qla2x00_abort_all_cmds(scsi_qla_host_t *ha, int res)
1030 {
1031         int cnt;
1032         unsigned long flags;
1033         srb_t *sp;
1034
1035         spin_lock_irqsave(&ha->hardware_lock, flags);
1036         for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
1037                 sp = ha->outstanding_cmds[cnt];
1038                 if (sp) {
1039                         ha->outstanding_cmds[cnt] = NULL;
1040                         sp->flags = 0;
1041                         sp->cmd->result = res;
1042                         sp->cmd->host_scribble = (unsigned char *)NULL;
1043                         qla2x00_sp_compl(ha, sp);
1044                 }
1045         }
1046         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1047 }
1048
1049 static int
1050 qla2xxx_slave_alloc(struct scsi_device *sdev)
1051 {
1052         struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1053
1054         if (!rport || fc_remote_port_chkready(rport))
1055                 return -ENXIO;
1056
1057         sdev->hostdata = *(fc_port_t **)rport->dd_data;
1058
1059         return 0;
1060 }
1061
1062 static int
1063 qla2xxx_slave_configure(struct scsi_device *sdev)
1064 {
1065         scsi_qla_host_t *ha = shost_priv(sdev->host);
1066         struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1067
1068         if (sdev->tagged_supported)
1069                 scsi_activate_tcq(sdev, ha->max_q_depth);
1070         else
1071                 scsi_deactivate_tcq(sdev, ha->max_q_depth);
1072
1073         rport->dev_loss_tmo = ha->port_down_retry_count + 5;
1074
1075         return 0;
1076 }
1077
1078 static void
1079 qla2xxx_slave_destroy(struct scsi_device *sdev)
1080 {
1081         sdev->hostdata = NULL;
1082 }
1083
1084 static int
1085 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1086 {
1087         scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1088         return sdev->queue_depth;
1089 }
1090
1091 static int
1092 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1093 {
1094         if (sdev->tagged_supported) {
1095                 scsi_set_tag_type(sdev, tag_type);
1096                 if (tag_type)
1097                         scsi_activate_tcq(sdev, sdev->queue_depth);
1098                 else
1099                         scsi_deactivate_tcq(sdev, sdev->queue_depth);
1100         } else
1101                 tag_type = 0;
1102
1103         return tag_type;
1104 }
1105
1106 /**
1107  * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1108  * @ha: HA context
1109  *
1110  * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1111  * supported addressing method.
1112  */
1113 static void
1114 qla2x00_config_dma_addressing(scsi_qla_host_t *ha)
1115 {
1116         /* Assume a 32bit DMA mask. */
1117         ha->flags.enable_64bit_addressing = 0;
1118
1119         if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1120                 /* Any upper-dword bits set? */
1121                 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1122                     !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1123                         /* Ok, a 64bit DMA mask is applicable. */
1124                         ha->flags.enable_64bit_addressing = 1;
1125                         ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1126                         ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1127                         return;
1128                 }
1129         }
1130
1131         dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1132         pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
1133 }
1134
1135 static void
1136 qla2x00_enable_intrs(scsi_qla_host_t *ha)
1137 {
1138         unsigned long flags = 0;
1139         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1140
1141         spin_lock_irqsave(&ha->hardware_lock, flags);
1142         ha->interrupts_on = 1;
1143         /* enable risc and host interrupts */
1144         WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1145         RD_REG_WORD(&reg->ictrl);
1146         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1147
1148 }
1149
1150 static void
1151 qla2x00_disable_intrs(scsi_qla_host_t *ha)
1152 {
1153         unsigned long flags = 0;
1154         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1155
1156         spin_lock_irqsave(&ha->hardware_lock, flags);
1157         ha->interrupts_on = 0;
1158         /* disable risc and host interrupts */
1159         WRT_REG_WORD(&reg->ictrl, 0);
1160         RD_REG_WORD(&reg->ictrl);
1161         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1162 }
1163
1164 static void
1165 qla24xx_enable_intrs(scsi_qla_host_t *ha)
1166 {
1167         unsigned long flags = 0;
1168         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1169
1170         spin_lock_irqsave(&ha->hardware_lock, flags);
1171         ha->interrupts_on = 1;
1172         WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1173         RD_REG_DWORD(&reg->ictrl);
1174         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1175 }
1176
1177 static void
1178 qla24xx_disable_intrs(scsi_qla_host_t *ha)
1179 {
1180         unsigned long flags = 0;
1181         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1182
1183         spin_lock_irqsave(&ha->hardware_lock, flags);
1184         ha->interrupts_on = 0;
1185         WRT_REG_DWORD(&reg->ictrl, 0);
1186         RD_REG_DWORD(&reg->ictrl);
1187         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1188 }
1189
1190 static struct isp_operations qla2100_isp_ops = {
1191         .pci_config             = qla2100_pci_config,
1192         .reset_chip             = qla2x00_reset_chip,
1193         .chip_diag              = qla2x00_chip_diag,
1194         .config_rings           = qla2x00_config_rings,
1195         .reset_adapter          = qla2x00_reset_adapter,
1196         .nvram_config           = qla2x00_nvram_config,
1197         .update_fw_options      = qla2x00_update_fw_options,
1198         .load_risc              = qla2x00_load_risc,
1199         .pci_info_str           = qla2x00_pci_info_str,
1200         .fw_version_str         = qla2x00_fw_version_str,
1201         .intr_handler           = qla2100_intr_handler,
1202         .enable_intrs           = qla2x00_enable_intrs,
1203         .disable_intrs          = qla2x00_disable_intrs,
1204         .abort_command          = qla2x00_abort_command,
1205         .target_reset           = qla2x00_abort_target,
1206         .lun_reset              = qla2x00_lun_reset,
1207         .fabric_login           = qla2x00_login_fabric,
1208         .fabric_logout          = qla2x00_fabric_logout,
1209         .calc_req_entries       = qla2x00_calc_iocbs_32,
1210         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1211         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1212         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1213         .read_nvram             = qla2x00_read_nvram_data,
1214         .write_nvram            = qla2x00_write_nvram_data,
1215         .fw_dump                = qla2100_fw_dump,
1216         .beacon_on              = NULL,
1217         .beacon_off             = NULL,
1218         .beacon_blink           = NULL,
1219         .read_optrom            = qla2x00_read_optrom_data,
1220         .write_optrom           = qla2x00_write_optrom_data,
1221         .get_flash_version      = qla2x00_get_flash_version,
1222 };
1223
1224 static struct isp_operations qla2300_isp_ops = {
1225         .pci_config             = qla2300_pci_config,
1226         .reset_chip             = qla2x00_reset_chip,
1227         .chip_diag              = qla2x00_chip_diag,
1228         .config_rings           = qla2x00_config_rings,
1229         .reset_adapter          = qla2x00_reset_adapter,
1230         .nvram_config           = qla2x00_nvram_config,
1231         .update_fw_options      = qla2x00_update_fw_options,
1232         .load_risc              = qla2x00_load_risc,
1233         .pci_info_str           = qla2x00_pci_info_str,
1234         .fw_version_str         = qla2x00_fw_version_str,
1235         .intr_handler           = qla2300_intr_handler,
1236         .enable_intrs           = qla2x00_enable_intrs,
1237         .disable_intrs          = qla2x00_disable_intrs,
1238         .abort_command          = qla2x00_abort_command,
1239         .target_reset           = qla2x00_abort_target,
1240         .lun_reset              = qla2x00_lun_reset,
1241         .fabric_login           = qla2x00_login_fabric,
1242         .fabric_logout          = qla2x00_fabric_logout,
1243         .calc_req_entries       = qla2x00_calc_iocbs_32,
1244         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1245         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1246         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1247         .read_nvram             = qla2x00_read_nvram_data,
1248         .write_nvram            = qla2x00_write_nvram_data,
1249         .fw_dump                = qla2300_fw_dump,
1250         .beacon_on              = qla2x00_beacon_on,
1251         .beacon_off             = qla2x00_beacon_off,
1252         .beacon_blink           = qla2x00_beacon_blink,
1253         .read_optrom            = qla2x00_read_optrom_data,
1254         .write_optrom           = qla2x00_write_optrom_data,
1255         .get_flash_version      = qla2x00_get_flash_version,
1256 };
1257
1258 static struct isp_operations qla24xx_isp_ops = {
1259         .pci_config             = qla24xx_pci_config,
1260         .reset_chip             = qla24xx_reset_chip,
1261         .chip_diag              = qla24xx_chip_diag,
1262         .config_rings           = qla24xx_config_rings,
1263         .reset_adapter          = qla24xx_reset_adapter,
1264         .nvram_config           = qla24xx_nvram_config,
1265         .update_fw_options      = qla24xx_update_fw_options,
1266         .load_risc              = qla24xx_load_risc,
1267         .pci_info_str           = qla24xx_pci_info_str,
1268         .fw_version_str         = qla24xx_fw_version_str,
1269         .intr_handler           = qla24xx_intr_handler,
1270         .enable_intrs           = qla24xx_enable_intrs,
1271         .disable_intrs          = qla24xx_disable_intrs,
1272         .abort_command          = qla24xx_abort_command,
1273         .target_reset           = qla24xx_abort_target,
1274         .lun_reset              = qla24xx_lun_reset,
1275         .fabric_login           = qla24xx_login_fabric,
1276         .fabric_logout          = qla24xx_fabric_logout,
1277         .calc_req_entries       = NULL,
1278         .build_iocbs            = NULL,
1279         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1280         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1281         .read_nvram             = qla24xx_read_nvram_data,
1282         .write_nvram            = qla24xx_write_nvram_data,
1283         .fw_dump                = qla24xx_fw_dump,
1284         .beacon_on              = qla24xx_beacon_on,
1285         .beacon_off             = qla24xx_beacon_off,
1286         .beacon_blink           = qla24xx_beacon_blink,
1287         .read_optrom            = qla24xx_read_optrom_data,
1288         .write_optrom           = qla24xx_write_optrom_data,
1289         .get_flash_version      = qla24xx_get_flash_version,
1290 };
1291
1292 static struct isp_operations qla25xx_isp_ops = {
1293         .pci_config             = qla25xx_pci_config,
1294         .reset_chip             = qla24xx_reset_chip,
1295         .chip_diag              = qla24xx_chip_diag,
1296         .config_rings           = qla24xx_config_rings,
1297         .reset_adapter          = qla24xx_reset_adapter,
1298         .nvram_config           = qla24xx_nvram_config,
1299         .update_fw_options      = qla24xx_update_fw_options,
1300         .load_risc              = qla24xx_load_risc,
1301         .pci_info_str           = qla24xx_pci_info_str,
1302         .fw_version_str         = qla24xx_fw_version_str,
1303         .intr_handler           = qla24xx_intr_handler,
1304         .enable_intrs           = qla24xx_enable_intrs,
1305         .disable_intrs          = qla24xx_disable_intrs,
1306         .abort_command          = qla24xx_abort_command,
1307         .target_reset           = qla24xx_abort_target,
1308         .lun_reset              = qla24xx_lun_reset,
1309         .fabric_login           = qla24xx_login_fabric,
1310         .fabric_logout          = qla24xx_fabric_logout,
1311         .calc_req_entries       = NULL,
1312         .build_iocbs            = NULL,
1313         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1314         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1315         .read_nvram             = qla25xx_read_nvram_data,
1316         .write_nvram            = qla25xx_write_nvram_data,
1317         .fw_dump                = qla25xx_fw_dump,
1318         .beacon_on              = qla24xx_beacon_on,
1319         .beacon_off             = qla24xx_beacon_off,
1320         .beacon_blink           = qla24xx_beacon_blink,
1321         .read_optrom            = qla25xx_read_optrom_data,
1322         .write_optrom           = qla24xx_write_optrom_data,
1323         .get_flash_version      = qla24xx_get_flash_version,
1324 };
1325
1326 static inline void
1327 qla2x00_set_isp_flags(scsi_qla_host_t *ha)
1328 {
1329         ha->device_type = DT_EXTENDED_IDS;
1330         switch (ha->pdev->device) {
1331         case PCI_DEVICE_ID_QLOGIC_ISP2100:
1332                 ha->device_type |= DT_ISP2100;
1333                 ha->device_type &= ~DT_EXTENDED_IDS;
1334                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1335                 break;
1336         case PCI_DEVICE_ID_QLOGIC_ISP2200:
1337                 ha->device_type |= DT_ISP2200;
1338                 ha->device_type &= ~DT_EXTENDED_IDS;
1339                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1340                 break;
1341         case PCI_DEVICE_ID_QLOGIC_ISP2300:
1342                 ha->device_type |= DT_ISP2300;
1343                 ha->device_type |= DT_ZIO_SUPPORTED;
1344                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1345                 break;
1346         case PCI_DEVICE_ID_QLOGIC_ISP2312:
1347                 ha->device_type |= DT_ISP2312;
1348                 ha->device_type |= DT_ZIO_SUPPORTED;
1349                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1350                 break;
1351         case PCI_DEVICE_ID_QLOGIC_ISP2322:
1352                 ha->device_type |= DT_ISP2322;
1353                 ha->device_type |= DT_ZIO_SUPPORTED;
1354                 if (ha->pdev->subsystem_vendor == 0x1028 &&
1355                     ha->pdev->subsystem_device == 0x0170)
1356                         ha->device_type |= DT_OEM_001;
1357                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1358                 break;
1359         case PCI_DEVICE_ID_QLOGIC_ISP6312:
1360                 ha->device_type |= DT_ISP6312;
1361                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1362                 break;
1363         case PCI_DEVICE_ID_QLOGIC_ISP6322:
1364                 ha->device_type |= DT_ISP6322;
1365                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1366                 break;
1367         case PCI_DEVICE_ID_QLOGIC_ISP2422:
1368                 ha->device_type |= DT_ISP2422;
1369                 ha->device_type |= DT_ZIO_SUPPORTED;
1370                 ha->device_type |= DT_FWI2;
1371                 ha->device_type |= DT_IIDMA;
1372                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1373                 break;
1374         case PCI_DEVICE_ID_QLOGIC_ISP2432:
1375                 ha->device_type |= DT_ISP2432;
1376                 ha->device_type |= DT_ZIO_SUPPORTED;
1377                 ha->device_type |= DT_FWI2;
1378                 ha->device_type |= DT_IIDMA;
1379                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1380                 break;
1381         case PCI_DEVICE_ID_QLOGIC_ISP5422:
1382                 ha->device_type |= DT_ISP5422;
1383                 ha->device_type |= DT_FWI2;
1384                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1385                 break;
1386         case PCI_DEVICE_ID_QLOGIC_ISP5432:
1387                 ha->device_type |= DT_ISP5432;
1388                 ha->device_type |= DT_FWI2;
1389                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1390                 break;
1391         case PCI_DEVICE_ID_QLOGIC_ISP2532:
1392                 ha->device_type |= DT_ISP2532;
1393                 ha->device_type |= DT_ZIO_SUPPORTED;
1394                 ha->device_type |= DT_FWI2;
1395                 ha->device_type |= DT_IIDMA;
1396                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1397                 break;
1398         }
1399 }
1400
1401 static int
1402 qla2x00_iospace_config(scsi_qla_host_t *ha)
1403 {
1404         resource_size_t pio;
1405
1406         if (pci_request_selected_regions(ha->pdev, ha->bars,
1407             QLA2XXX_DRIVER_NAME)) {
1408                 qla_printk(KERN_WARNING, ha,
1409                     "Failed to reserve PIO/MMIO regions (%s)\n",
1410                     pci_name(ha->pdev));
1411
1412                 goto iospace_error_exit;
1413         }
1414         if (!(ha->bars & 1))
1415                 goto skip_pio;
1416
1417         /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1418         pio = pci_resource_start(ha->pdev, 0);
1419         if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
1420                 if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1421                         qla_printk(KERN_WARNING, ha,
1422                             "Invalid PCI I/O region size (%s)...\n",
1423                                 pci_name(ha->pdev));
1424                         pio = 0;
1425                 }
1426         } else {
1427                 qla_printk(KERN_WARNING, ha,
1428                     "region #0 not a PIO resource (%s)...\n",
1429                     pci_name(ha->pdev));
1430                 pio = 0;
1431         }
1432         ha->pio_address = pio;
1433
1434 skip_pio:
1435         /* Use MMIO operations for all accesses. */
1436         if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
1437                 qla_printk(KERN_ERR, ha,
1438                     "region #1 not an MMIO resource (%s), aborting\n",
1439                     pci_name(ha->pdev));
1440                 goto iospace_error_exit;
1441         }
1442         if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
1443                 qla_printk(KERN_ERR, ha,
1444                     "Invalid PCI mem region size (%s), aborting\n",
1445                         pci_name(ha->pdev));
1446                 goto iospace_error_exit;
1447         }
1448
1449         ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
1450         if (!ha->iobase) {
1451                 qla_printk(KERN_ERR, ha,
1452                     "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1453
1454                 goto iospace_error_exit;
1455         }
1456
1457         return (0);
1458
1459 iospace_error_exit:
1460         return (-ENOMEM);
1461 }
1462
1463 static void
1464 qla2xxx_scan_start(struct Scsi_Host *shost)
1465 {
1466         scsi_qla_host_t *ha = shost_priv(shost);
1467
1468         set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
1469         set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1470         set_bit(RSCN_UPDATE, &ha->dpc_flags);
1471 }
1472
1473 static int
1474 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1475 {
1476         scsi_qla_host_t *ha = shost_priv(shost);
1477
1478         if (!ha->host)
1479                 return 1;
1480         if (time > ha->loop_reset_delay * HZ)
1481                 return 1;
1482
1483         return atomic_read(&ha->loop_state) == LOOP_READY;
1484 }
1485
1486 /*
1487  * PCI driver interface
1488  */
1489 static int __devinit
1490 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1491 {
1492         int     ret = -ENODEV;
1493         struct Scsi_Host *host;
1494         scsi_qla_host_t *ha;
1495         char pci_info[30];
1496         char fw_str[30];
1497         struct scsi_host_template *sht;
1498         int bars, mem_only = 0;
1499
1500         bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
1501         sht = &qla2x00_driver_template;
1502         if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1503             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1504             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1505             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
1506             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532) {
1507                 bars = pci_select_bars(pdev, IORESOURCE_MEM);
1508                 sht = &qla24xx_driver_template;
1509                 mem_only = 1;
1510         }
1511
1512         if (mem_only) {
1513                 if (pci_enable_device_mem(pdev))
1514                         goto probe_out;
1515         } else {
1516                 if (pci_enable_device(pdev))
1517                         goto probe_out;
1518         }
1519
1520         if (pci_find_aer_capability(pdev))
1521                 if (pci_enable_pcie_error_reporting(pdev))
1522                         goto probe_out;
1523
1524         host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
1525         if (host == NULL) {
1526                 printk(KERN_WARNING
1527                     "qla2xxx: Couldn't allocate host from scsi layer!\n");
1528                 goto probe_disable_device;
1529         }
1530
1531         /* Clear our data area */
1532         ha = shost_priv(host);
1533         memset(ha, 0, sizeof(scsi_qla_host_t));
1534
1535         ha->pdev = pdev;
1536         ha->host = host;
1537         ha->host_no = host->host_no;
1538         sprintf(ha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, ha->host_no);
1539         ha->parent = NULL;
1540         ha->bars = bars;
1541         ha->mem_only = mem_only;
1542         spin_lock_init(&ha->hardware_lock);
1543
1544         /* Set ISP-type information. */
1545         qla2x00_set_isp_flags(ha);
1546
1547         /* Configure PCI I/O space */
1548         ret = qla2x00_iospace_config(ha);
1549         if (ret)
1550                 goto probe_failed;
1551
1552         qla_printk(KERN_INFO, ha,
1553             "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1554             ha->iobase);
1555
1556         ha->prev_topology = 0;
1557         ha->init_cb_size = sizeof(init_cb_t);
1558         ha->mgmt_svr_loop_id = MANAGEMENT_SERVER + ha->vp_idx;
1559         ha->link_data_rate = PORT_SPEED_UNKNOWN;
1560         ha->optrom_size = OPTROM_SIZE_2300;
1561
1562         ha->max_q_depth = MAX_Q_DEPTH;
1563         if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
1564                 ha->max_q_depth = ql2xmaxqdepth;
1565
1566         /* Assign ISP specific operations. */
1567         if (IS_QLA2100(ha)) {
1568                 host->max_id = MAX_TARGETS_2100;
1569                 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1570                 ha->request_q_length = REQUEST_ENTRY_CNT_2100;
1571                 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1572                 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1573                 host->sg_tablesize = 32;
1574                 ha->gid_list_info_size = 4;
1575                 ha->isp_ops = &qla2100_isp_ops;
1576         } else if (IS_QLA2200(ha)) {
1577                 host->max_id = MAX_TARGETS_2200;
1578                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1579                 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1580                 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1581                 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1582                 ha->gid_list_info_size = 4;
1583                 ha->isp_ops = &qla2100_isp_ops;
1584         } else if (IS_QLA23XX(ha)) {
1585                 host->max_id = MAX_TARGETS_2200;
1586                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1587                 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1588                 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1589                 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1590                 ha->gid_list_info_size = 6;
1591                 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1592                         ha->optrom_size = OPTROM_SIZE_2322;
1593                 ha->isp_ops = &qla2300_isp_ops;
1594         } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
1595                 host->max_id = MAX_TARGETS_2200;
1596                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1597                 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1598                 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1599                 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1600                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1601                 ha->mgmt_svr_loop_id = 10 + ha->vp_idx;
1602                 ha->gid_list_info_size = 8;
1603                 ha->optrom_size = OPTROM_SIZE_24XX;
1604                 ha->isp_ops = &qla24xx_isp_ops;
1605         } else if (IS_QLA25XX(ha)) {
1606                 host->max_id = MAX_TARGETS_2200;
1607                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1608                 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1609                 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1610                 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1611                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1612                 ha->mgmt_svr_loop_id = 10 + ha->vp_idx;
1613                 ha->gid_list_info_size = 8;
1614                 ha->optrom_size = OPTROM_SIZE_25XX;
1615                 ha->isp_ops = &qla25xx_isp_ops;
1616                 ha->hw_event_start = PCI_FUNC(pdev->devfn) ?
1617                     FA_HW_EVENT1_ADDR: FA_HW_EVENT0_ADDR;
1618         }
1619         host->can_queue = ha->request_q_length + 128;
1620
1621         /* load the F/W, read paramaters, and init the H/W */
1622         ha->instance = num_hosts;
1623
1624         init_MUTEX(&ha->vport_sem);
1625         init_completion(&ha->mbx_cmd_comp);
1626         complete(&ha->mbx_cmd_comp);
1627         init_completion(&ha->mbx_intr_comp);
1628
1629         INIT_LIST_HEAD(&ha->list);
1630         INIT_LIST_HEAD(&ha->fcports);
1631         INIT_LIST_HEAD(&ha->vp_list);
1632         INIT_LIST_HEAD(&ha->work_list);
1633
1634         set_bit(0, (unsigned long *) ha->vp_idx_map);
1635
1636         qla2x00_config_dma_addressing(ha);
1637         if (qla2x00_mem_alloc(ha)) {
1638                 qla_printk(KERN_WARNING, ha,
1639                     "[ERROR] Failed to allocate memory for adapter\n");
1640
1641                 ret = -ENOMEM;
1642                 goto probe_failed;
1643         }
1644
1645         if (qla2x00_initialize_adapter(ha)) {
1646                 qla_printk(KERN_WARNING, ha,
1647                     "Failed to initialize adapter\n");
1648
1649                 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1650                     "Adapter flags %x.\n",
1651                     ha->host_no, ha->device_flags));
1652
1653                 ret = -ENODEV;
1654                 goto probe_failed;
1655         }
1656
1657         /*
1658          * Startup the kernel thread for this host adapter
1659          */
1660         ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
1661                         "%s_dpc", ha->host_str);
1662         if (IS_ERR(ha->dpc_thread)) {
1663                 qla_printk(KERN_WARNING, ha,
1664                     "Unable to start DPC thread!\n");
1665                 ret = PTR_ERR(ha->dpc_thread);
1666                 goto probe_failed;
1667         }
1668
1669         host->this_id = 255;
1670         host->cmd_per_lun = 3;
1671         host->unique_id = ha->instance;
1672         host->max_cmd_len = MAX_CMDSZ;
1673         host->max_channel = MAX_BUSES - 1;
1674         host->max_lun = MAX_LUNS;
1675         host->transportt = qla2xxx_transport_template;
1676
1677         ret = qla2x00_request_irqs(ha);
1678         if (ret)
1679                 goto probe_failed;
1680
1681         /* Initialized the timer */
1682         qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL);
1683
1684         DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1685             ha->host_no, ha));
1686
1687         pci_set_drvdata(pdev, ha);
1688
1689         ha->flags.init_done = 1;
1690         ha->flags.online = 1;
1691
1692         num_hosts++;
1693
1694         ret = scsi_add_host(host, &pdev->dev);
1695         if (ret)
1696                 goto probe_failed;
1697
1698         scsi_scan_host(host);
1699
1700         qla2x00_alloc_sysfs_attr(ha);
1701
1702         qla2x00_init_host_attr(ha);
1703
1704         qla2x00_dfs_setup(ha);
1705
1706         qla_printk(KERN_INFO, ha, "\n"
1707             " QLogic Fibre Channel HBA Driver: %s\n"
1708             "  QLogic %s - %s\n"
1709             "  ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1710             qla2x00_version_str, ha->model_number,
1711             ha->model_desc ? ha->model_desc: "", pdev->device,
1712             ha->isp_ops->pci_info_str(ha, pci_info), pci_name(pdev),
1713             ha->flags.enable_64bit_addressing ? '+': '-', ha->host_no,
1714             ha->isp_ops->fw_version_str(ha, fw_str));
1715
1716         return 0;
1717
1718 probe_failed:
1719         qla2x00_free_device(ha);
1720
1721         scsi_host_put(host);
1722
1723 probe_disable_device:
1724         pci_disable_device(pdev);
1725
1726 probe_out:
1727         return ret;
1728 }
1729
1730 static void
1731 qla2x00_remove_one(struct pci_dev *pdev)
1732 {
1733         scsi_qla_host_t *ha;
1734
1735         ha = pci_get_drvdata(pdev);
1736
1737         qla2x00_dfs_remove(ha);
1738
1739         qla2x00_free_sysfs_attr(ha);
1740
1741         fc_remove_host(ha->host);
1742
1743         scsi_remove_host(ha->host);
1744
1745         qla2x00_free_device(ha);
1746
1747         scsi_host_put(ha->host);
1748
1749         pci_disable_device(pdev);
1750         pci_set_drvdata(pdev, NULL);
1751 }
1752
1753 static void
1754 qla2x00_free_device(scsi_qla_host_t *ha)
1755 {
1756         qla2x00_abort_all_cmds(ha, DID_NO_CONNECT << 16);
1757
1758         /* Disable timer */
1759         if (ha->timer_active)
1760                 qla2x00_stop_timer(ha);
1761
1762         ha->flags.online = 0;
1763
1764         /* Kill the kernel thread for this host */
1765         if (ha->dpc_thread) {
1766                 struct task_struct *t = ha->dpc_thread;
1767
1768                 /*
1769                  * qla2xxx_wake_dpc checks for ->dpc_thread
1770                  * so we need to zero it out.
1771                  */
1772                 ha->dpc_thread = NULL;
1773                 kthread_stop(t);
1774         }
1775
1776         if (ha->flags.fce_enabled)
1777                 qla2x00_disable_fce_trace(ha, NULL, NULL);
1778
1779         if (ha->eft)
1780                 qla2x00_disable_eft_trace(ha);
1781
1782         /* Stop currently executing firmware. */
1783         qla2x00_try_to_stop_firmware(ha);
1784
1785         /* turn-off interrupts on the card */
1786         if (ha->interrupts_on)
1787                 ha->isp_ops->disable_intrs(ha);
1788
1789         qla2x00_mem_free(ha);
1790
1791         qla2x00_free_irqs(ha);
1792
1793         /* release io space registers  */
1794         if (ha->iobase)
1795                 iounmap(ha->iobase);
1796         pci_release_selected_regions(ha->pdev, ha->bars);
1797 }
1798
1799 static inline void
1800 qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport,
1801     int defer)
1802 {
1803         unsigned long flags;
1804         struct fc_rport *rport;
1805
1806         if (!fcport->rport)
1807                 return;
1808
1809         rport = fcport->rport;
1810         if (defer) {
1811                 spin_lock_irqsave(&fcport->rport_lock, flags);
1812                 fcport->drport = rport;
1813                 fcport->rport = NULL;
1814                 *(fc_port_t **)rport->dd_data = NULL;
1815                 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1816                 set_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags);
1817         } else {
1818                 spin_lock_irqsave(&fcport->rport_lock, flags);
1819                 fcport->rport = NULL;
1820                 *(fc_port_t **)rport->dd_data = NULL;
1821                 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1822                 fc_remote_port_delete(rport);
1823         }
1824 }
1825
1826 /*
1827  * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1828  *
1829  * Input: ha = adapter block pointer.  fcport = port structure pointer.
1830  *
1831  * Return: None.
1832  *
1833  * Context:
1834  */
1835 void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport,
1836     int do_login, int defer)
1837 {
1838         if (atomic_read(&fcport->state) == FCS_ONLINE &&
1839             ha->vp_idx == fcport->vp_idx)
1840                 qla2x00_schedule_rport_del(ha, fcport, defer);
1841
1842         /*
1843          * We may need to retry the login, so don't change the state of the
1844          * port but do the retries.
1845          */
1846         if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
1847                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1848
1849         if (!do_login)
1850                 return;
1851
1852         if (fcport->login_retry == 0) {
1853                 fcport->login_retry = ha->login_retry_count;
1854                 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
1855
1856                 DEBUG(printk("scsi(%ld): Port login retry: "
1857                     "%02x%02x%02x%02x%02x%02x%02x%02x, "
1858                     "id = 0x%04x retry cnt=%d\n",
1859                     ha->host_no,
1860                     fcport->port_name[0],
1861                     fcport->port_name[1],
1862                     fcport->port_name[2],
1863                     fcport->port_name[3],
1864                     fcport->port_name[4],
1865                     fcport->port_name[5],
1866                     fcport->port_name[6],
1867                     fcport->port_name[7],
1868                     fcport->loop_id,
1869                     fcport->login_retry));
1870         }
1871 }
1872
1873 /*
1874  * qla2x00_mark_all_devices_lost
1875  *      Updates fcport state when device goes offline.
1876  *
1877  * Input:
1878  *      ha = adapter block pointer.
1879  *      fcport = port structure pointer.
1880  *
1881  * Return:
1882  *      None.
1883  *
1884  * Context:
1885  */
1886 void
1887 qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer)
1888 {
1889         fc_port_t *fcport;
1890         scsi_qla_host_t *pha = to_qla_parent(ha);
1891
1892         list_for_each_entry(fcport, &pha->fcports, list) {
1893                 if (ha->vp_idx != 0 && ha->vp_idx != fcport->vp_idx)
1894                         continue;
1895                 /*
1896                  * No point in marking the device as lost, if the device is
1897                  * already DEAD.
1898                  */
1899                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
1900                         continue;
1901                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
1902                         if (defer)
1903                                 qla2x00_schedule_rport_del(ha, fcport, defer);
1904                         else if (ha->vp_idx == fcport->vp_idx)
1905                                 qla2x00_schedule_rport_del(ha, fcport, defer);
1906                 }
1907                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1908         }
1909
1910         if (defer)
1911                 qla2xxx_wake_dpc(ha);
1912 }
1913
1914 /*
1915 * qla2x00_mem_alloc
1916 *      Allocates adapter memory.
1917 *
1918 * Returns:
1919 *      0  = success.
1920 *      !0  = failure.
1921 */
1922 static int
1923 qla2x00_mem_alloc(scsi_qla_host_t *ha)
1924 {
1925         char    name[16];
1926
1927         ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
1928             (ha->request_q_length + 1) * sizeof(request_t), &ha->request_dma,
1929             GFP_KERNEL);
1930         if (!ha->request_ring)
1931                 goto fail;
1932
1933         ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
1934             (ha->response_q_length + 1) * sizeof(response_t),
1935             &ha->response_dma, GFP_KERNEL);
1936         if (!ha->response_ring)
1937                 goto fail_free_request_ring;
1938
1939         ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
1940             &ha->gid_list_dma, GFP_KERNEL);
1941         if (!ha->gid_list)
1942                 goto fail_free_response_ring;
1943
1944         ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
1945             &ha->init_cb_dma, GFP_KERNEL);
1946         if (!ha->init_cb)
1947                 goto fail_free_gid_list;
1948
1949         snprintf(name, sizeof(name), "%s_%ld", QLA2XXX_DRIVER_NAME,
1950             ha->host_no);
1951         ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
1952             DMA_POOL_SIZE, 8, 0);
1953         if (!ha->s_dma_pool)
1954                 goto fail_free_init_cb;
1955
1956         ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
1957         if (!ha->srb_mempool)
1958                 goto fail_free_s_dma_pool;
1959
1960         /* Get memory for cached NVRAM */
1961         ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
1962         if (!ha->nvram)
1963                 goto fail_free_srb_mempool;
1964
1965         /* Allocate memory for SNS commands */
1966         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
1967                 /* Get consistent memory allocated for SNS commands */
1968                 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
1969                     sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
1970                 if (!ha->sns_cmd)
1971                         goto fail_free_nvram;
1972         } else {
1973                 /* Get consistent memory allocated for MS IOCB */
1974                 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1975                     &ha->ms_iocb_dma);
1976                 if (!ha->ms_iocb)
1977                         goto fail_free_nvram;
1978
1979                 /* Get consistent memory allocated for CT SNS commands */
1980                 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
1981                     sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
1982                 if (!ha->ct_sns)
1983                         goto fail_free_ms_iocb;
1984         }
1985
1986         return 0;
1987
1988 fail_free_ms_iocb:
1989         dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
1990         ha->ms_iocb = NULL;
1991         ha->ms_iocb_dma = 0;
1992 fail_free_nvram:
1993         kfree(ha->nvram);
1994         ha->nvram = NULL;
1995 fail_free_srb_mempool:
1996         mempool_destroy(ha->srb_mempool);
1997         ha->srb_mempool = NULL;
1998 fail_free_s_dma_pool:
1999         dma_pool_destroy(ha->s_dma_pool);
2000         ha->s_dma_pool = NULL;
2001 fail_free_init_cb:
2002         dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
2003             ha->init_cb_dma);
2004         ha->init_cb = NULL;
2005         ha->init_cb_dma = 0;
2006 fail_free_gid_list:
2007         dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2008             ha->gid_list_dma);
2009         ha->gid_list = NULL;
2010         ha->gid_list_dma = 0;
2011 fail_free_response_ring:
2012         dma_free_coherent(&ha->pdev->dev, (ha->response_q_length + 1) *
2013             sizeof(response_t), ha->response_ring, ha->response_dma);
2014         ha->response_ring = NULL;
2015         ha->response_dma = 0;
2016 fail_free_request_ring:
2017         dma_free_coherent(&ha->pdev->dev, (ha->request_q_length + 1) *
2018             sizeof(request_t), ha->request_ring, ha->request_dma);
2019         ha->request_ring = NULL;
2020         ha->request_dma = 0;
2021 fail:
2022         return -ENOMEM;
2023 }
2024
2025 /*
2026 * qla2x00_mem_free
2027 *      Frees all adapter allocated memory.
2028 *
2029 * Input:
2030 *      ha = adapter block pointer.
2031 */
2032 static void
2033 qla2x00_mem_free(scsi_qla_host_t *ha)
2034 {
2035         struct list_head        *fcpl, *fcptemp;
2036         fc_port_t       *fcport;
2037
2038         if (ha->srb_mempool)
2039                 mempool_destroy(ha->srb_mempool);
2040
2041         if (ha->fce)
2042                 dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
2043                     ha->fce_dma);
2044
2045         if (ha->fw_dump) {
2046                 if (ha->eft)
2047                         dma_free_coherent(&ha->pdev->dev,
2048                             ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2049                 vfree(ha->fw_dump);
2050         }
2051
2052         if (ha->sns_cmd)
2053                 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2054                     ha->sns_cmd, ha->sns_cmd_dma);
2055
2056         if (ha->ct_sns)
2057                 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2058                     ha->ct_sns, ha->ct_sns_dma);
2059
2060         if (ha->sfp_data)
2061                 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2062
2063         if (ha->ms_iocb)
2064                 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2065
2066         if (ha->s_dma_pool)
2067                 dma_pool_destroy(ha->s_dma_pool);
2068
2069         if (ha->init_cb)
2070                 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
2071                     ha->init_cb, ha->init_cb_dma);
2072
2073         if (ha->gid_list)
2074                 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2075                     ha->gid_list_dma);
2076
2077         if (ha->response_ring)
2078                 dma_free_coherent(&ha->pdev->dev,
2079                     (ha->response_q_length + 1) * sizeof(response_t),
2080                     ha->response_ring, ha->response_dma);
2081
2082         if (ha->request_ring)
2083                 dma_free_coherent(&ha->pdev->dev,
2084                     (ha->request_q_length + 1) * sizeof(request_t),
2085                     ha->request_ring, ha->request_dma);
2086
2087         ha->srb_mempool = NULL;
2088         ha->eft = NULL;
2089         ha->eft_dma = 0;
2090         ha->sns_cmd = NULL;
2091         ha->sns_cmd_dma = 0;
2092         ha->ct_sns = NULL;
2093         ha->ct_sns_dma = 0;
2094         ha->ms_iocb = NULL;
2095         ha->ms_iocb_dma = 0;
2096         ha->init_cb = NULL;
2097         ha->init_cb_dma = 0;
2098
2099         ha->s_dma_pool = NULL;
2100
2101         ha->gid_list = NULL;
2102         ha->gid_list_dma = 0;
2103
2104         ha->response_ring = NULL;
2105         ha->response_dma = 0;
2106         ha->request_ring = NULL;
2107         ha->request_dma = 0;
2108
2109         list_for_each_safe(fcpl, fcptemp, &ha->fcports) {
2110                 fcport = list_entry(fcpl, fc_port_t, list);
2111
2112                 /* fc ports */
2113                 list_del_init(&fcport->list);
2114                 kfree(fcport);
2115         }
2116         INIT_LIST_HEAD(&ha->fcports);
2117
2118         ha->fw_dump = NULL;
2119         ha->fw_dumped = 0;
2120         ha->fw_dump_reading = 0;
2121
2122         vfree(ha->optrom_buffer);
2123         kfree(ha->nvram);
2124 }
2125
2126 struct qla_work_evt *
2127 qla2x00_alloc_work(struct scsi_qla_host *ha, enum qla_work_type type,
2128     int locked)
2129 {
2130         struct qla_work_evt *e;
2131
2132         e = kzalloc(sizeof(struct qla_work_evt), locked ? GFP_ATOMIC:
2133             GFP_KERNEL);
2134         if (!e)
2135                 return NULL;
2136
2137         INIT_LIST_HEAD(&e->list);
2138         e->type = type;
2139         e->flags = QLA_EVT_FLAG_FREE;
2140         return e;
2141 }
2142
2143 int
2144 qla2x00_post_work(struct scsi_qla_host *ha, struct qla_work_evt *e, int locked)
2145 {
2146         unsigned long flags;
2147
2148         if (!locked)
2149                 spin_lock_irqsave(&ha->hardware_lock, flags);
2150         list_add_tail(&e->list, &ha->work_list);
2151         qla2xxx_wake_dpc(ha);
2152         if (!locked)
2153                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2154         return QLA_SUCCESS;
2155 }
2156
2157 int
2158 qla2x00_post_aen_work(struct scsi_qla_host *ha, enum fc_host_event_code code,
2159     u32 data)
2160 {
2161         struct qla_work_evt *e;
2162
2163         e = qla2x00_alloc_work(ha, QLA_EVT_AEN, 1);
2164         if (!e)
2165                 return QLA_FUNCTION_FAILED;
2166
2167         e->u.aen.code = code;
2168         e->u.aen.data = data;
2169         return qla2x00_post_work(ha, e, 1);
2170 }
2171
2172 int
2173 qla2x00_post_hwe_work(struct scsi_qla_host *ha, uint16_t code, uint16_t d1,
2174     uint16_t d2, uint16_t d3)
2175 {
2176         struct qla_work_evt *e;
2177
2178         e = qla2x00_alloc_work(ha, QLA_EVT_HWE_LOG, 1);
2179         if (!e)
2180                 return QLA_FUNCTION_FAILED;
2181
2182         e->u.hwe.code = code;
2183         e->u.hwe.d1 = d1;
2184         e->u.hwe.d2 = d2;
2185         e->u.hwe.d3 = d3;
2186         return qla2x00_post_work(ha, e, 1);
2187 }
2188
2189 static void
2190 qla2x00_do_work(struct scsi_qla_host *ha)
2191 {
2192         struct qla_work_evt *e;
2193
2194         spin_lock_irq(&ha->hardware_lock);
2195         while (!list_empty(&ha->work_list)) {
2196                 e = list_entry(ha->work_list.next, struct qla_work_evt, list);
2197                 list_del_init(&e->list);
2198                 spin_unlock_irq(&ha->hardware_lock);
2199
2200                 switch (e->type) {
2201                 case QLA_EVT_AEN:
2202                         fc_host_post_event(ha->host, fc_get_event_number(),
2203                             e->u.aen.code, e->u.aen.data);
2204                         break;
2205                 case QLA_EVT_HWE_LOG:
2206                         qla2xxx_hw_event_log(ha, e->u.hwe.code, e->u.hwe.d1,
2207                             e->u.hwe.d2, e->u.hwe.d3);
2208                         break;
2209                 }
2210                 if (e->flags & QLA_EVT_FLAG_FREE)
2211                         kfree(e);
2212                 spin_lock_irq(&ha->hardware_lock);
2213         }
2214         spin_unlock_irq(&ha->hardware_lock);
2215 }
2216
2217 /**************************************************************************
2218 * qla2x00_do_dpc
2219 *   This kernel thread is a task that is schedule by the interrupt handler
2220 *   to perform the background processing for interrupts.
2221 *
2222 * Notes:
2223 * This task always run in the context of a kernel thread.  It
2224 * is kick-off by the driver's detect code and starts up
2225 * up one per adapter. It immediately goes to sleep and waits for
2226 * some fibre event.  When either the interrupt handler or
2227 * the timer routine detects a event it will one of the task
2228 * bits then wake us up.
2229 **************************************************************************/
2230 static int
2231 qla2x00_do_dpc(void *data)
2232 {
2233         int             rval;
2234         scsi_qla_host_t *ha;
2235         fc_port_t       *fcport;
2236         uint8_t         status;
2237         uint16_t        next_loopid;
2238         struct scsi_qla_host *vha;
2239         int             i;
2240
2241
2242         ha = (scsi_qla_host_t *)data;
2243
2244         set_user_nice(current, -20);
2245
2246         while (!kthread_should_stop()) {
2247                 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2248
2249                 set_current_state(TASK_INTERRUPTIBLE);
2250                 schedule();
2251                 __set_current_state(TASK_RUNNING);
2252
2253                 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2254
2255                 /* Initialization not yet finished. Don't do anything yet. */
2256                 if (!ha->flags.init_done)
2257                         continue;
2258
2259                 DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no));
2260
2261                 ha->dpc_active = 1;
2262
2263                 if (ha->flags.mbox_busy) {
2264                         ha->dpc_active = 0;
2265                         continue;
2266                 }
2267
2268                 qla2x00_do_work(ha);
2269
2270                 if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2271
2272                         DEBUG(printk("scsi(%ld): dpc: sched "
2273                             "qla2x00_abort_isp ha = %p\n",
2274                             ha->host_no, ha));
2275                         if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2276                             &ha->dpc_flags))) {
2277
2278                                 if (qla2x00_abort_isp(ha)) {
2279                                         /* failed. retry later */
2280                                         set_bit(ISP_ABORT_NEEDED,
2281                                             &ha->dpc_flags);
2282                                 }
2283                                 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2284                         }
2285
2286                         for_each_mapped_vp_idx(ha, i) {
2287                                 list_for_each_entry(vha, &ha->vp_list,
2288                                     vp_list) {
2289                                         if (i == vha->vp_idx) {
2290                                                 set_bit(ISP_ABORT_NEEDED,
2291                                                     &vha->dpc_flags);
2292                                                 break;
2293                                         }
2294                                 }
2295                         }
2296
2297                         DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2298                             ha->host_no));
2299                 }
2300
2301                 if (test_and_clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags))
2302                         qla2x00_update_fcports(ha);
2303
2304                 if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) &&
2305                     (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) {
2306
2307                         DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2308                             ha->host_no));
2309
2310                         qla2x00_rst_aen(ha);
2311                         clear_bit(RESET_ACTIVE, &ha->dpc_flags);
2312                 }
2313
2314                 /* Retry each device up to login retry count */
2315                 if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2316                     !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) &&
2317                     atomic_read(&ha->loop_state) != LOOP_DOWN) {
2318
2319                         DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2320                             ha->host_no));
2321
2322                         next_loopid = 0;
2323                         list_for_each_entry(fcport, &ha->fcports, list) {
2324                                 /*
2325                                  * If the port is not ONLINE then try to login
2326                                  * to it if we haven't run out of retries.
2327                                  */
2328                                 if (atomic_read(&fcport->state) != FCS_ONLINE &&
2329                                     fcport->login_retry) {
2330
2331                                         if (fcport->flags & FCF_FABRIC_DEVICE) {
2332                                                 if (fcport->flags &
2333                                                     FCF_TAPE_PRESENT)
2334                                                         ha->isp_ops->fabric_logout(
2335                                                             ha, fcport->loop_id,
2336                                                             fcport->d_id.b.domain,
2337                                                             fcport->d_id.b.area,
2338                                                             fcport->d_id.b.al_pa);
2339                                                 status = qla2x00_fabric_login(
2340                                                     ha, fcport, &next_loopid);
2341                                         } else
2342                                                 status =
2343                                                     qla2x00_local_device_login(
2344                                                         ha, fcport);
2345
2346                                         fcport->login_retry--;
2347                                         if (status == QLA_SUCCESS) {
2348                                                 fcport->old_loop_id = fcport->loop_id;
2349
2350                                                 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2351                                                     ha->host_no, fcport->loop_id));
2352
2353                                                 qla2x00_update_fcport(ha,
2354                                                     fcport);
2355                                         } else if (status == 1) {
2356                                                 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
2357                                                 /* retry the login again */
2358                                                 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2359                                                     ha->host_no,
2360                                                     fcport->login_retry, fcport->loop_id));
2361                                         } else {
2362                                                 fcport->login_retry = 0;
2363                                         }
2364                                         if (fcport->login_retry == 0)
2365                                                 fcport->loop_id = FC_NO_LOOP_ID;
2366                                 }
2367                                 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2368                                         break;
2369                         }
2370                         DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2371                             ha->host_no));
2372                 }
2373
2374                 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2375
2376                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2377                             ha->host_no));
2378
2379                         if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2380                             &ha->dpc_flags))) {
2381
2382                                 rval = qla2x00_loop_resync(ha);
2383
2384                                 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
2385                         }
2386
2387                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2388                             ha->host_no));
2389                 }
2390
2391                 if (!ha->interrupts_on)
2392                         ha->isp_ops->enable_intrs(ha);
2393
2394                 if (test_and_clear_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags))
2395                         ha->isp_ops->beacon_blink(ha);
2396
2397                 qla2x00_do_dpc_all_vps(ha);
2398
2399                 ha->dpc_active = 0;
2400         } /* End of while(1) */
2401
2402         DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no));
2403
2404         /*
2405          * Make sure that nobody tries to wake us up again.
2406          */
2407         ha->dpc_active = 0;
2408
2409         return 0;
2410 }
2411
2412 void
2413 qla2xxx_wake_dpc(scsi_qla_host_t *ha)
2414 {
2415         if (ha->dpc_thread)
2416                 wake_up_process(ha->dpc_thread);
2417 }
2418
2419 /*
2420 *  qla2x00_rst_aen
2421 *      Processes asynchronous reset.
2422 *
2423 * Input:
2424 *      ha  = adapter block pointer.
2425 */
2426 static void
2427 qla2x00_rst_aen(scsi_qla_host_t *ha)
2428 {
2429         if (ha->flags.online && !ha->flags.reset_active &&
2430             !atomic_read(&ha->loop_down_timer) &&
2431             !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
2432                 do {
2433                         clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2434
2435                         /*
2436                          * Issue marker command only when we are going to start
2437                          * the I/O.
2438                          */
2439                         ha->marker_needed = 1;
2440                 } while (!atomic_read(&ha->loop_down_timer) &&
2441                     (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags)));
2442         }
2443 }
2444
2445 static void
2446 qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp)
2447 {
2448         struct scsi_cmnd *cmd = sp->cmd;
2449
2450         if (sp->flags & SRB_DMA_VALID) {
2451                 scsi_dma_unmap(cmd);
2452                 sp->flags &= ~SRB_DMA_VALID;
2453         }
2454         CMD_SP(cmd) = NULL;
2455 }
2456
2457 void
2458 qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp)
2459 {
2460         struct scsi_cmnd *cmd = sp->cmd;
2461
2462         qla2x00_sp_free_dma(ha, sp);
2463
2464         mempool_free(sp, ha->srb_mempool);
2465
2466         cmd->scsi_done(cmd);
2467 }
2468
2469 /**************************************************************************
2470 *   qla2x00_timer
2471 *
2472 * Description:
2473 *   One second timer
2474 *
2475 * Context: Interrupt
2476 ***************************************************************************/
2477 void
2478 qla2x00_timer(scsi_qla_host_t *ha)
2479 {
2480         unsigned long   cpu_flags = 0;
2481         fc_port_t       *fcport;
2482         int             start_dpc = 0;
2483         int             index;
2484         srb_t           *sp;
2485         int             t;
2486         scsi_qla_host_t *pha = to_qla_parent(ha);
2487
2488         /*
2489          * Ports - Port down timer.
2490          *
2491          * Whenever, a port is in the LOST state we start decrementing its port
2492          * down timer every second until it reaches zero. Once  it reaches zero
2493          * the port it marked DEAD.
2494          */
2495         t = 0;
2496         list_for_each_entry(fcport, &ha->fcports, list) {
2497                 if (fcport->port_type != FCT_TARGET)
2498                         continue;
2499
2500                 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2501
2502                         if (atomic_read(&fcport->port_down_timer) == 0)
2503                                 continue;
2504
2505                         if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
2506                                 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
2507
2508                         DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
2509                             "%d remaining\n",
2510                             ha->host_no,
2511                             t, atomic_read(&fcport->port_down_timer)));
2512                 }
2513                 t++;
2514         } /* End of for fcport  */
2515
2516
2517         /* Loop down handler. */
2518         if (atomic_read(&ha->loop_down_timer) > 0 &&
2519             !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) {
2520
2521                 if (atomic_read(&ha->loop_down_timer) ==
2522                     ha->loop_down_abort_time) {
2523
2524                         DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2525                             "queues before time expire\n",
2526                             ha->host_no));
2527
2528                         if (!IS_QLA2100(ha) && ha->link_down_timeout)
2529                                 atomic_set(&ha->loop_state, LOOP_DEAD);
2530
2531                         /* Schedule an ISP abort to return any tape commands. */
2532                         /* NPIV - scan physical port only */
2533                         if (!ha->parent) {
2534                                 spin_lock_irqsave(&ha->hardware_lock,
2535                                     cpu_flags);
2536                                 for (index = 1;
2537                                     index < MAX_OUTSTANDING_COMMANDS;
2538                                     index++) {
2539                                         fc_port_t *sfcp;
2540
2541                                         sp = ha->outstanding_cmds[index];
2542                                         if (!sp)
2543                                                 continue;
2544                                         sfcp = sp->fcport;
2545                                         if (!(sfcp->flags & FCF_TAPE_PRESENT))
2546                                                 continue;
2547
2548                                         set_bit(ISP_ABORT_NEEDED,
2549                                             &ha->dpc_flags);
2550                                         break;
2551                                 }
2552                                 spin_unlock_irqrestore(&ha->hardware_lock,
2553                                     cpu_flags);
2554                         }
2555                         set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags);
2556                         start_dpc++;
2557                 }
2558
2559                 /* if the loop has been down for 4 minutes, reinit adapter */
2560                 if (atomic_dec_and_test(&ha->loop_down_timer) != 0) {
2561                         DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2562                             "restarting queues.\n",
2563                             ha->host_no));
2564
2565                         set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags);
2566                         start_dpc++;
2567
2568                         if (!(ha->device_flags & DFLG_NO_CABLE)) {
2569                                 DEBUG(printk("scsi(%ld): Loop down - "
2570                                     "aborting ISP.\n",
2571                                     ha->host_no));
2572                                 qla_printk(KERN_WARNING, ha,
2573                                     "Loop down - aborting ISP.\n");
2574
2575                                 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2576                         }
2577                 }
2578                 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
2579                     ha->host_no,
2580                     atomic_read(&ha->loop_down_timer)));
2581         }
2582
2583         /* Check if beacon LED needs to be blinked */
2584         if (ha->beacon_blink_led == 1) {
2585                 set_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags);
2586                 start_dpc++;
2587         }
2588
2589         /* Schedule the DPC routine if needed */
2590         if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) ||
2591             test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) ||
2592             test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags) ||
2593             start_dpc ||
2594             test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) ||
2595             test_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags) ||
2596             test_bit(VP_DPC_NEEDED, &ha->dpc_flags) ||
2597             test_bit(RELOGIN_NEEDED, &ha->dpc_flags)))
2598                 qla2xxx_wake_dpc(pha);
2599
2600         qla2x00_restart_timer(ha, WATCH_INTERVAL);
2601 }
2602
2603 /* Firmware interface routines. */
2604
2605 #define FW_BLOBS        6
2606 #define FW_ISP21XX      0
2607 #define FW_ISP22XX      1
2608 #define FW_ISP2300      2
2609 #define FW_ISP2322      3
2610 #define FW_ISP24XX      4
2611 #define FW_ISP25XX      5
2612
2613 #define FW_FILE_ISP21XX "ql2100_fw.bin"
2614 #define FW_FILE_ISP22XX "ql2200_fw.bin"
2615 #define FW_FILE_ISP2300 "ql2300_fw.bin"
2616 #define FW_FILE_ISP2322 "ql2322_fw.bin"
2617 #define FW_FILE_ISP24XX "ql2400_fw.bin"
2618 #define FW_FILE_ISP25XX "ql2500_fw.bin"
2619
2620 static DECLARE_MUTEX(qla_fw_lock);
2621
2622 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
2623         { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
2624         { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
2625         { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
2626         { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
2627         { .name = FW_FILE_ISP24XX, },
2628         { .name = FW_FILE_ISP25XX, },
2629 };
2630
2631 struct fw_blob *
2632 qla2x00_request_firmware(scsi_qla_host_t *ha)
2633 {
2634         struct fw_blob *blob;
2635
2636         blob = NULL;
2637         if (IS_QLA2100(ha)) {
2638                 blob = &qla_fw_blobs[FW_ISP21XX];
2639         } else if (IS_QLA2200(ha)) {
2640                 blob = &qla_fw_blobs[FW_ISP22XX];
2641         } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
2642                 blob = &qla_fw_blobs[FW_ISP2300];
2643         } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
2644                 blob = &qla_fw_blobs[FW_ISP2322];
2645         } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
2646                 blob = &qla_fw_blobs[FW_ISP24XX];
2647         } else if (IS_QLA25XX(ha)) {
2648                 blob = &qla_fw_blobs[FW_ISP25XX];
2649         }
2650
2651         down(&qla_fw_lock);
2652         if (blob->fw)
2653                 goto out;
2654
2655         if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
2656                 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
2657                     "(%s).\n", ha->host_no, blob->name));
2658                 blob->fw = NULL;
2659                 blob = NULL;
2660                 goto out;
2661         }
2662
2663 out:
2664         up(&qla_fw_lock);
2665         return blob;
2666 }
2667
2668 static void
2669 qla2x00_release_firmware(void)
2670 {
2671         int idx;
2672
2673         down(&qla_fw_lock);
2674         for (idx = 0; idx < FW_BLOBS; idx++)
2675                 if (qla_fw_blobs[idx].fw)
2676                         release_firmware(qla_fw_blobs[idx].fw);
2677         up(&qla_fw_lock);
2678 }
2679
2680 static pci_ers_result_t
2681 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
2682 {
2683         switch (state) {
2684         case pci_channel_io_normal:
2685                 return PCI_ERS_RESULT_CAN_RECOVER;
2686         case pci_channel_io_frozen:
2687                 pci_disable_device(pdev);
2688                 return PCI_ERS_RESULT_NEED_RESET;
2689         case pci_channel_io_perm_failure:
2690                 qla2x00_remove_one(pdev);
2691                 return PCI_ERS_RESULT_DISCONNECT;
2692         }
2693         return PCI_ERS_RESULT_NEED_RESET;
2694 }
2695
2696 static pci_ers_result_t
2697 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
2698 {
2699         int risc_paused = 0;
2700         uint32_t stat;
2701         unsigned long flags;
2702         scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2703         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2704         struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
2705
2706         spin_lock_irqsave(&ha->hardware_lock, flags);
2707         if (IS_QLA2100(ha) || IS_QLA2200(ha)){
2708                 stat = RD_REG_DWORD(&reg->hccr);
2709                 if (stat & HCCR_RISC_PAUSE)
2710                         risc_paused = 1;
2711         } else if (IS_QLA23XX(ha)) {
2712                 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
2713                 if (stat & HSR_RISC_PAUSED)
2714                         risc_paused = 1;
2715         } else if (IS_FWI2_CAPABLE(ha)) {
2716                 stat = RD_REG_DWORD(&reg24->host_status);
2717                 if (stat & HSRX_RISC_PAUSED)
2718                         risc_paused = 1;
2719         }
2720         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2721
2722         if (risc_paused) {
2723                 qla_printk(KERN_INFO, ha, "RISC paused -- mmio_enabled, "
2724                     "Dumping firmware!\n");
2725                 ha->isp_ops->fw_dump(ha, 0);
2726
2727                 return PCI_ERS_RESULT_NEED_RESET;
2728         } else
2729                 return PCI_ERS_RESULT_RECOVERED;
2730 }
2731
2732 static pci_ers_result_t
2733 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
2734 {
2735         pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
2736         scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2737         int rc;
2738
2739         if (ha->mem_only)
2740                 rc = pci_enable_device_mem(pdev);
2741         else
2742                 rc = pci_enable_device(pdev);
2743
2744         if (rc) {
2745                 qla_printk(KERN_WARNING, ha,
2746                     "Can't re-enable PCI device after reset.\n");
2747
2748                 return ret;
2749         }
2750         pci_set_master(pdev);
2751
2752         if (ha->isp_ops->pci_config(ha))
2753                 return ret;
2754
2755         set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2756         if (qla2x00_abort_isp(ha)== QLA_SUCCESS)
2757                 ret =  PCI_ERS_RESULT_RECOVERED;
2758         clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2759
2760         return ret;
2761 }
2762
2763 static void
2764 qla2xxx_pci_resume(struct pci_dev *pdev)
2765 {
2766         scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2767         int ret;
2768
2769         ret = qla2x00_wait_for_hba_online(ha);
2770         if (ret != QLA_SUCCESS) {
2771                 qla_printk(KERN_ERR, ha,
2772                     "the device failed to resume I/O "
2773                     "from slot/link_reset");
2774         }
2775         pci_cleanup_aer_uncorrect_error_status(pdev);
2776 }
2777
2778 static struct pci_error_handlers qla2xxx_err_handler = {
2779         .error_detected = qla2xxx_pci_error_detected,
2780         .mmio_enabled = qla2xxx_pci_mmio_enabled,
2781         .slot_reset = qla2xxx_pci_slot_reset,
2782         .resume = qla2xxx_pci_resume,
2783 };
2784
2785 static struct pci_device_id qla2xxx_pci_tbl[] = {
2786         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
2787         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
2788         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
2789         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
2790         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
2791         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
2792         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
2793         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
2794         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
2795         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
2796         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
2797         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
2798         { 0 },
2799 };
2800 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
2801
2802 static struct pci_driver qla2xxx_pci_driver = {
2803         .name           = QLA2XXX_DRIVER_NAME,
2804         .driver         = {
2805                 .owner          = THIS_MODULE,
2806         },
2807         .id_table       = qla2xxx_pci_tbl,
2808         .probe          = qla2x00_probe_one,
2809         .remove         = qla2x00_remove_one,
2810         .err_handler    = &qla2xxx_err_handler,
2811 };
2812
2813 /**
2814  * qla2x00_module_init - Module initialization.
2815  **/
2816 static int __init
2817 qla2x00_module_init(void)
2818 {
2819         int ret = 0;
2820
2821         /* Allocate cache for SRBs. */
2822         srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
2823             SLAB_HWCACHE_ALIGN, NULL);
2824         if (srb_cachep == NULL) {
2825                 printk(KERN_ERR
2826                     "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2827                 return -ENOMEM;
2828         }
2829
2830         /* Derive version string. */
2831         strcpy(qla2x00_version_str, QLA2XXX_VERSION);
2832         if (ql2xextended_error_logging)
2833                 strcat(qla2x00_version_str, "-debug");
2834
2835         qla2xxx_transport_template =
2836             fc_attach_transport(&qla2xxx_transport_functions);
2837         if (!qla2xxx_transport_template) {
2838                 kmem_cache_destroy(srb_cachep);
2839                 return -ENODEV;
2840         }
2841         qla2xxx_transport_vport_template =
2842             fc_attach_transport(&qla2xxx_transport_vport_functions);
2843         if (!qla2xxx_transport_vport_template) {
2844                 kmem_cache_destroy(srb_cachep);
2845                 fc_release_transport(qla2xxx_transport_template);
2846                 return -ENODEV;
2847         }
2848
2849         printk(KERN_INFO "QLogic Fibre Channel HBA Driver\n");
2850         ret = pci_register_driver(&qla2xxx_pci_driver);
2851         if (ret) {
2852                 kmem_cache_destroy(srb_cachep);
2853                 fc_release_transport(qla2xxx_transport_template);
2854                 fc_release_transport(qla2xxx_transport_vport_template);
2855         }
2856         return ret;
2857 }
2858
2859 /**
2860  * qla2x00_module_exit - Module cleanup.
2861  **/
2862 static void __exit
2863 qla2x00_module_exit(void)
2864 {
2865         pci_unregister_driver(&qla2xxx_pci_driver);
2866         qla2x00_release_firmware();
2867         kmem_cache_destroy(srb_cachep);
2868         fc_release_transport(qla2xxx_transport_template);
2869         fc_release_transport(qla2xxx_transport_vport_template);
2870 }
2871
2872 module_init(qla2x00_module_init);
2873 module_exit(qla2x00_module_exit);
2874
2875 MODULE_AUTHOR("QLogic Corporation");
2876 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
2877 MODULE_LICENSE("GPL");
2878 MODULE_VERSION(QLA2XXX_VERSION);
2879 MODULE_FIRMWARE(FW_FILE_ISP21XX);
2880 MODULE_FIRMWARE(FW_FILE_ISP22XX);
2881 MODULE_FIRMWARE(FW_FILE_ISP2300);
2882 MODULE_FIRMWARE(FW_FILE_ISP2322);
2883 MODULE_FIRMWARE(FW_FILE_ISP24XX);
2884 MODULE_FIRMWARE(FW_FILE_ISP25XX);