drivers/scsi/qla2xxx/qla_os.c

   1 /*
   2  * QLogic Fibre Channel HBA Driver
   3  * Copyright (c)  2003-2008 QLogic Corporation
   4  *
   5  * See LICENSE.qla2xxx for copyright and licensing details.
   6  */
   7 #include "qla_def.h"
   8
   9 #include <linux/moduleparam.h>
  10 #include <linux/vmalloc.h>
  11 #include <linux/delay.h>
  12 #include <linux/kthread.h>
  13 #include <linux/mutex.h>
  14
  15 #include <scsi/scsi_tcq.h>
  16 #include <scsi/scsicam.h>
  17 #include <scsi/scsi_transport.h>
  18 #include <scsi/scsi_transport_fc.h>
  19
  20 /*
  21  * Driver version
  22  */
  23 char qla2x00_version_str[40];
  24
  25 /*
  26  * SRB allocation cache
  27  */
  28 static struct kmem_cache *srb_cachep;
  29
  30 int num_hosts;
  31 int ql2xlogintimeout = 20;
  32 module_param(ql2xlogintimeout, int, S_IRUGO|S_IRUSR);
  33 MODULE_PARM_DESC(ql2xlogintimeout,
  34                 "Login timeout value in seconds.");
  35
  36 int qlport_down_retry;
  37 module_param(qlport_down_retry, int, S_IRUGO|S_IRUSR);
  38 MODULE_PARM_DESC(qlport_down_retry,
  39                 "Maximum number of command retries to a port that returns "
  40                 "a PORT-DOWN status.");
  41
  42 int ql2xplogiabsentdevice;
  43 module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
  44 MODULE_PARM_DESC(ql2xplogiabsentdevice,
  45                 "Option to enable PLOGI to devices that are not present after "
  46                 "a Fabric scan.  This is needed for several broken switches. "
  47                 "Default is 0 - no PLOGI. 1 - perfom PLOGI.");
  48
  49 int ql2xloginretrycount = 0;
  50 module_param(ql2xloginretrycount, int, S_IRUGO|S_IRUSR);
  51 MODULE_PARM_DESC(ql2xloginretrycount,
  52                 "Specify an alternate value for the NVRAM login retry count.");
  53
  54 int ql2xallocfwdump = 1;
  55 module_param(ql2xallocfwdump, int, S_IRUGO|S_IRUSR);
  56 MODULE_PARM_DESC(ql2xallocfwdump,
  57                 "Option to enable allocation of memory for a firmware dump "
  58                 "during HBA initialization.  Memory allocation requirements "
  59                 "vary by ISP type.  Default is 1 - allocate memory.");
  60
  61 int ql2xextended_error_logging;
  62 module_param(ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
  63 MODULE_PARM_DESC(ql2xextended_error_logging,
  64                 "Option to enable extended error logging, "
  65                 "Default is 0 - no logging. 1 - log errors.");
  66
  67 static void qla2x00_free_device(scsi_qla_host_t *);
  68
  69 static void qla2x00_config_dma_addressing(scsi_qla_host_t *ha);
  70
  71 int ql2xfdmienable=1;
  72 module_param(ql2xfdmienable, int, S_IRUGO|S_IRUSR);
  73 MODULE_PARM_DESC(ql2xfdmienable,
  74                 "Enables FDMI registratons "
  75                 "Default is 0 - no FDMI. 1 - perfom FDMI.");
  76
  77 #define MAX_Q_DEPTH    32
  78 static int ql2xmaxqdepth = MAX_Q_DEPTH;
  79 module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
  80 MODULE_PARM_DESC(ql2xmaxqdepth,
  81                 "Maximum queue depth to report for target devices.");
  82
  83 int ql2xqfullrampup = 120;
  84 module_param(ql2xqfullrampup, int, S_IRUGO|S_IWUSR);
  85 MODULE_PARM_DESC(ql2xqfullrampup,
  86                 "Number of seconds to wait to begin to ramp-up the queue "
  87                 "depth for a device after a queue-full condition has been "
  88                 "detected.  Default is 120 seconds.");
  89
  90 /*
  91  * SCSI host template entry points
  92  */
  93 static int qla2xxx_slave_configure(struct scsi_device * device);
  94 static int qla2xxx_slave_alloc(struct scsi_device *);
  95 static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
  96 static void qla2xxx_scan_start(struct Scsi_Host *);
  97 static void qla2xxx_slave_destroy(struct scsi_device *);
  98 static int qla2x00_queuecommand(struct scsi_cmnd *cmd,
  99                 void (*fn)(struct scsi_cmnd *));
 100 static int qla24xx_queuecommand(struct scsi_cmnd *cmd,
 101                 void (*fn)(struct scsi_cmnd *));
 102 static int qla2xxx_eh_abort(struct scsi_cmnd *);
 103 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
 104 static int qla2xxx_eh_target_reset(struct scsi_cmnd *);
 105 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
 106 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
 107
 108 static int qla2x00_change_queue_depth(struct scsi_device *, int);
 109 static int qla2x00_change_queue_type(struct scsi_device *, int);
 110
 111 static struct scsi_host_template qla2x00_driver_template = {
 112         .module                 = THIS_MODULE,
 113         .name                   = QLA2XXX_DRIVER_NAME,
 114         .queuecommand           = qla2x00_queuecommand,
 115
 116         .eh_abort_handler       = qla2xxx_eh_abort,
 117         .eh_device_reset_handler = qla2xxx_eh_device_reset,
 118         .eh_target_reset_handler = qla2xxx_eh_target_reset,
 119         .eh_bus_reset_handler   = qla2xxx_eh_bus_reset,
 120         .eh_host_reset_handler  = qla2xxx_eh_host_reset,
 121
 122         .slave_configure        = qla2xxx_slave_configure,
 123
 124         .slave_alloc            = qla2xxx_slave_alloc,
 125         .slave_destroy          = qla2xxx_slave_destroy,
 126         .scan_finished          = qla2xxx_scan_finished,
 127         .scan_start             = qla2xxx_scan_start,
 128         .change_queue_depth     = qla2x00_change_queue_depth,
 129         .change_queue_type      = qla2x00_change_queue_type,
 130         .this_id                = -1,
 131         .cmd_per_lun            = 3,
 132         .use_clustering         = ENABLE_CLUSTERING,
 133         .sg_tablesize           = SG_ALL,
 134
 135         /*
 136          * The RISC allows for each command to transfer (2^32-1) bytes of data,
 137          * which equates to 0x800000 sectors.
 138          */
 139         .max_sectors            = 0xFFFF,
 140         .shost_attrs            = qla2x00_host_attrs,
 141 };
 142
 143 struct scsi_host_template qla24xx_driver_template = {
 144         .module                 = THIS_MODULE,
 145         .name                   = QLA2XXX_DRIVER_NAME,
 146         .queuecommand           = qla24xx_queuecommand,
 147
 148         .eh_abort_handler       = qla2xxx_eh_abort,
 149         .eh_device_reset_handler = qla2xxx_eh_device_reset,
 150         .eh_target_reset_handler = qla2xxx_eh_target_reset,
 151         .eh_bus_reset_handler   = qla2xxx_eh_bus_reset,
 152         .eh_host_reset_handler  = qla2xxx_eh_host_reset,
 153
 154         .slave_configure        = qla2xxx_slave_configure,
 155
 156         .slave_alloc            = qla2xxx_slave_alloc,
 157         .slave_destroy          = qla2xxx_slave_destroy,
 158         .scan_finished          = qla2xxx_scan_finished,
 159         .scan_start             = qla2xxx_scan_start,
 160         .change_queue_depth     = qla2x00_change_queue_depth,
 161         .change_queue_type      = qla2x00_change_queue_type,
 162         .this_id                = -1,
 163         .cmd_per_lun            = 3,
 164         .use_clustering         = ENABLE_CLUSTERING,
 165         .sg_tablesize           = SG_ALL,
 166
 167         .max_sectors            = 0xFFFF,
 168         .shost_attrs            = qla2x00_host_attrs,
 169 };
 170
 171 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
 172 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
 173
 174 /* TODO Convert to inlines
 175  *
 176  * Timer routines
 177  */
 178
 179 __inline__ void
 180 qla2x00_start_timer(scsi_qla_host_t *ha, void *func, unsigned long interval)
 181 {
 182         init_timer(&ha->timer);
 183         ha->timer.expires = jiffies + interval * HZ;
 184         ha->timer.data = (unsigned long)ha;
 185         ha->timer.function = (void (*)(unsigned long))func;
 186         add_timer(&ha->timer);
 187         ha->timer_active = 1;
 188 }
 189
 190 static inline void
 191 qla2x00_restart_timer(scsi_qla_host_t *ha, unsigned long interval)
 192 {
 193         mod_timer(&ha->timer, jiffies + interval * HZ);
 194 }
 195
 196 static __inline__ void
 197 qla2x00_stop_timer(scsi_qla_host_t *ha)
 198 {
 199         del_timer_sync(&ha->timer);
 200         ha->timer_active = 0;
 201 }
 202
 203 static int qla2x00_do_dpc(void *data);
 204
 205 static void qla2x00_rst_aen(scsi_qla_host_t *);
 206
 207 static int qla2x00_mem_alloc(scsi_qla_host_t *);
 208 static void qla2x00_mem_free(scsi_qla_host_t *ha);
 209 static void qla2x00_sp_free_dma(scsi_qla_host_t *, srb_t *);
 210
 211 /* -------------------------------------------------------------------------- */
 212
 213 static char *
 214 qla2x00_pci_info_str(struct scsi_qla_host *ha, char *str)
 215 {
 216         static char *pci_bus_modes[] = {
 217                 "33", "66", "100", "133",
 218         };
 219         uint16_t pci_bus;
 220
 221         strcpy(str, "PCI");
 222         pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
 223         if (pci_bus) {
 224                 strcat(str, "-X (");
 225                 strcat(str, pci_bus_modes[pci_bus]);
 226         } else {
 227                 pci_bus = (ha->pci_attr & BIT_8) >> 8;
 228                 strcat(str, " (");
 229                 strcat(str, pci_bus_modes[pci_bus]);
 230         }
 231         strcat(str, " MHz)");
 232
 233         return (str);
 234 }
 235
 236 static char *
 237 qla24xx_pci_info_str(struct scsi_qla_host *ha, char *str)
 238 {
 239         static char *pci_bus_modes[] = { "33", "66", "100", "133", };
 240         uint32_t pci_bus;
 241         int pcie_reg;
 242
 243         pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
 244         if (pcie_reg) {
 245                 char lwstr[6];
 246                 uint16_t pcie_lstat, lspeed, lwidth;
 247
 248                 pcie_reg += 0x12;
 249                 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
 250                 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
 251                 lwidth = (pcie_lstat &
 252                     (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
 253
 254                 strcpy(str, "PCIe (");
 255                 if (lspeed == 1)
 256                         strcat(str, "2.5GT/s ");
 257                 else if (lspeed == 2)
 258                         strcat(str, "5.0GT/s ");
 259                 else
 260                         strcat(str, "<unknown> ");
 261                 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
 262                 strcat(str, lwstr);
 263
 264                 return str;
 265         }
 266
 267         strcpy(str, "PCI");
 268         pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
 269         if (pci_bus == 0 || pci_bus == 8) {
 270                 strcat(str, " (");
 271                 strcat(str, pci_bus_modes[pci_bus >> 3]);
 272         } else {
 273                 strcat(str, "-X ");
 274                 if (pci_bus & BIT_2)
 275                         strcat(str, "Mode 2");
 276                 else
 277                         strcat(str, "Mode 1");
 278                 strcat(str, " (");
 279                 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
 280         }
 281         strcat(str, " MHz)");
 282
 283         return str;
 284 }
 285
 286 static char *
 287 qla2x00_fw_version_str(struct scsi_qla_host *ha, char *str)
 288 {
 289         char un_str[10];
 290
 291         sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
 292             ha->fw_minor_version,
 293             ha->fw_subminor_version);
 294
 295         if (ha->fw_attributes & BIT_9) {
 296                 strcat(str, "FLX");
 297                 return (str);
 298         }
 299
 300         switch (ha->fw_attributes & 0xFF) {
 301         case 0x7:
 302                 strcat(str, "EF");
 303                 break;
 304         case 0x17:
 305                 strcat(str, "TP");
 306                 break;
 307         case 0x37:
 308                 strcat(str, "IP");
 309                 break;
 310         case 0x77:
 311                 strcat(str, "VI");
 312                 break;
 313         default:
 314                 sprintf(un_str, "(%x)", ha->fw_attributes);
 315                 strcat(str, un_str);
 316                 break;
 317         }
 318         if (ha->fw_attributes & 0x100)
 319                 strcat(str, "X");
 320
 321         return (str);
 322 }
 323
 324 static char *
 325 qla24xx_fw_version_str(struct scsi_qla_host *ha, char *str)
 326 {
 327         sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
 328             ha->fw_minor_version,
 329             ha->fw_subminor_version);
 330
 331         if (ha->fw_attributes & BIT_0)
 332                 strcat(str, "[Class 2] ");
 333         if (ha->fw_attributes & BIT_1)
 334                 strcat(str, "[IP] ");
 335         if (ha->fw_attributes & BIT_2)
 336                 strcat(str, "[Multi-ID] ");
 337         if (ha->fw_attributes & BIT_3)
 338                 strcat(str, "[SB-2] ");
 339         if (ha->fw_attributes & BIT_4)
 340                 strcat(str, "[T10 CRC] ");
 341         if (ha->fw_attributes & BIT_5)
 342                 strcat(str, "[VI] ");
 343         if (ha->fw_attributes & BIT_10)
 344                 strcat(str, "[84XX] ");
 345         if (ha->fw_attributes & BIT_13)
 346                 strcat(str, "[Experimental]");
 347         return str;
 348 }
 349
 350 static inline srb_t *
 351 qla2x00_get_new_sp(scsi_qla_host_t *ha, fc_port_t *fcport,
 352     struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 353 {
 354         srb_t *sp;
 355
 356         sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
 357         if (!sp)
 358                 return sp;
 359
 360         sp->ha = ha;
 361         sp->fcport = fcport;
 362         sp->cmd = cmd;
 363         sp->flags = 0;
 364         CMD_SP(cmd) = (void *)sp;
 365         cmd->scsi_done = done;
 366
 367         return sp;
 368 }
 369
 370 static int
 371 qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 372 {
 373         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
 374         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 375         struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
 376         srb_t *sp;
 377         int rval;
 378
 379         if (unlikely(pci_channel_offline(ha->pdev))) {
 380                 cmd->result = DID_REQUEUE << 16;
 381                 goto qc_fail_command;
 382         }
 383
 384         rval = fc_remote_port_chkready(rport);
 385         if (rval) {
 386                 cmd->result = rval;
 387                 goto qc_fail_command;
 388         }
 389
 390         /* Close window on fcport/rport state-transitioning. */
 391         if (!*(fc_port_t **)rport->dd_data) {
 392                 cmd->result = DID_IMM_RETRY << 16;
 393                 goto qc_fail_command;
 394         }
 395
 396         if (atomic_read(&fcport->state) != FCS_ONLINE) {
 397                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
 398                     atomic_read(&ha->loop_state) == LOOP_DEAD) {
 399                         cmd->result = DID_NO_CONNECT << 16;
 400                         goto qc_fail_command;
 401                 }
 402                 goto qc_host_busy;
 403         }
 404
 405         spin_unlock_irq(ha->host->host_lock);
 406
 407         sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
 408         if (!sp)
 409                 goto qc_host_busy_lock;
 410
 411         rval = qla2x00_start_scsi(sp);
 412         if (rval != QLA_SUCCESS)
 413                 goto qc_host_busy_free_sp;
 414
 415         spin_lock_irq(ha->host->host_lock);
 416
 417         return 0;
 418
 419 qc_host_busy_free_sp:
 420         qla2x00_sp_free_dma(ha, sp);
 421         mempool_free(sp, ha->srb_mempool);
 422
 423 qc_host_busy_lock:
 424         spin_lock_irq(ha->host->host_lock);
 425
 426 qc_host_busy:
 427         return SCSI_MLQUEUE_HOST_BUSY;
 428
 429 qc_fail_command:
 430         done(cmd);
 431
 432         return 0;
 433 }
 434
 435
 436 static int
 437 qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 438 {
 439         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
 440         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 441         struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
 442         srb_t *sp;
 443         int rval;
 444         scsi_qla_host_t *pha = to_qla_parent(ha);
 445
 446         if (unlikely(pci_channel_offline(ha->pdev))) {
 447                 cmd->result = DID_REQUEUE << 16;
 448                 goto qc24_fail_command;
 449         }
 450
 451         rval = fc_remote_port_chkready(rport);
 452         if (rval) {
 453                 cmd->result = rval;
 454                 goto qc24_fail_command;
 455         }
 456
 457         /* Close window on fcport/rport state-transitioning. */
 458         if (!*(fc_port_t **)rport->dd_data) {
 459                 cmd->result = DID_IMM_RETRY << 16;
 460                 goto qc24_fail_command;
 461         }
 462
 463         if (atomic_read(&fcport->state) != FCS_ONLINE) {
 464                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
 465                     atomic_read(&pha->loop_state) == LOOP_DEAD) {
 466                         cmd->result = DID_NO_CONNECT << 16;
 467                         goto qc24_fail_command;
 468                 }
 469                 goto qc24_host_busy;
 470         }
 471
 472         spin_unlock_irq(ha->host->host_lock);
 473
 474         sp = qla2x00_get_new_sp(pha, fcport, cmd, done);
 475         if (!sp)
 476                 goto qc24_host_busy_lock;
 477
 478         rval = qla24xx_start_scsi(sp);
 479         if (rval != QLA_SUCCESS)
 480                 goto qc24_host_busy_free_sp;
 481
 482         spin_lock_irq(ha->host->host_lock);
 483
 484         return 0;
 485
 486 qc24_host_busy_free_sp:
 487         qla2x00_sp_free_dma(pha, sp);
 488         mempool_free(sp, pha->srb_mempool);
 489
 490 qc24_host_busy_lock:
 491         spin_lock_irq(ha->host->host_lock);
 492
 493 qc24_host_busy:
 494         return SCSI_MLQUEUE_HOST_BUSY;
 495
 496 qc24_fail_command:
 497         done(cmd);
 498
 499         return 0;
 500 }
 501
 502
 503 /*
 504  * qla2x00_eh_wait_on_command
 505  *    Waits for the command to be returned by the Firmware for some
 506  *    max time.
 507  *
 508  * Input:
 509  *    ha = actual ha whose done queue will contain the command
 510  *            returned by firmware.
 511  *    cmd = Scsi Command to wait on.
 512  *    flag = Abort/Reset(Bus or Device Reset)
 513  *
 514  * Return:
 515  *    Not Found : 0
 516  *    Found : 1
 517  */
 518 static int
 519 qla2x00_eh_wait_on_command(scsi_qla_host_t *ha, struct scsi_cmnd *cmd)
 520 {
 521 #define ABORT_POLLING_PERIOD    1000
 522 #define ABORT_WAIT_ITER         ((10 * 1000) / (ABORT_POLLING_PERIOD))
 523         unsigned long wait_iter = ABORT_WAIT_ITER;
 524         int ret = QLA_SUCCESS;
 525
 526         while (CMD_SP(cmd)) {
 527                 msleep(ABORT_POLLING_PERIOD);
 528
 529                 if (--wait_iter)
 530                         break;
 531         }
 532         if (CMD_SP(cmd))
 533                 ret = QLA_FUNCTION_FAILED;
 534
 535         return ret;
 536 }
 537
 538 /*
 539  * qla2x00_wait_for_hba_online
 540  *    Wait till the HBA is online after going through
 541  *    <= MAX_RETRIES_OF_ISP_ABORT  or
 542  *    finally HBA is disabled ie marked offline
 543  *
 544  * Input:
 545  *     ha - pointer to host adapter structure
 546  *
 547  * Note:
 548  *    Does context switching-Release SPIN_LOCK
 549  *    (if any) before calling this routine.
 550  *
 551  * Return:
 552  *    Success (Adapter is online) : 0
 553  *    Failed  (Adapter is offline/disabled) : 1
 554  */
 555 int
 556 qla2x00_wait_for_hba_online(scsi_qla_host_t *ha)
 557 {
 558         int             return_status;
 559         unsigned long   wait_online;
 560         scsi_qla_host_t *pha = to_qla_parent(ha);
 561
 562         wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 563         while (((test_bit(ISP_ABORT_NEEDED, &pha->dpc_flags)) ||
 564             test_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags) ||
 565             test_bit(ISP_ABORT_RETRY, &pha->dpc_flags) ||
 566             pha->dpc_active) && time_before(jiffies, wait_online)) {
 567
 568                 msleep(1000);
 569         }
 570         if (pha->flags.online)
 571                 return_status = QLA_SUCCESS;
 572         else
 573                 return_status = QLA_FUNCTION_FAILED;
 574
 575         return (return_status);
 576 }
 577
 578 /*
 579  * qla2x00_wait_for_loop_ready
 580  *    Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
 581  *    to be in LOOP_READY state.
 582  * Input:
 583  *     ha - pointer to host adapter structure
 584  *
 585  * Note:
 586  *    Does context switching-Release SPIN_LOCK
 587  *    (if any) before calling this routine.
 588  *
 589  *
 590  * Return:
 591  *    Success (LOOP_READY) : 0
 592  *    Failed  (LOOP_NOT_READY) : 1
 593  */
 594 static inline int
 595 qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha)
 596 {
 597         int      return_status = QLA_SUCCESS;
 598         unsigned long loop_timeout ;
 599         scsi_qla_host_t *pha = to_qla_parent(ha);
 600
 601         /* wait for 5 min at the max for loop to be ready */
 602         loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 603
 604         while ((!atomic_read(&pha->loop_down_timer) &&
 605             atomic_read(&pha->loop_state) == LOOP_DOWN) ||
 606             atomic_read(&pha->loop_state) != LOOP_READY) {
 607                 if (atomic_read(&pha->loop_state) == LOOP_DEAD) {
 608                         return_status = QLA_FUNCTION_FAILED;
 609                         break;
 610                 }
 611                 msleep(1000);
 612                 if (time_after_eq(jiffies, loop_timeout)) {
 613                         return_status = QLA_FUNCTION_FAILED;
 614                         break;
 615                 }
 616         }
 617         return (return_status);
 618 }
 619
 620 static void
 621 qla2x00_block_error_handler(struct scsi_cmnd *cmnd)
 622 {
 623         struct Scsi_Host *shost = cmnd->device->host;
 624         struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
 625         unsigned long flags;
 626
 627         spin_lock_irqsave(shost->host_lock, flags);
 628         while (rport->port_state == FC_PORTSTATE_BLOCKED) {
 629                 spin_unlock_irqrestore(shost->host_lock, flags);
 630                 msleep(1000);
 631                 spin_lock_irqsave(shost->host_lock, flags);
 632         }
 633         spin_unlock_irqrestore(shost->host_lock, flags);
 634         return;
 635 }
 636
 637 /**************************************************************************
 638 * qla2xxx_eh_abort
 639 *
 640 * Description:
 641 *    The abort function will abort the specified command.
 642 *
 643 * Input:
 644 *    cmd = Linux SCSI command packet to be aborted.
 645 *
 646 * Returns:
 647 *    Either SUCCESS or FAILED.
 648 *
 649 * Note:
 650 *    Only return FAILED if command not returned by firmware.
 651 **************************************************************************/
 652 static int
 653 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
 654 {
 655         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
 656         srb_t *sp;
 657         int ret, i;
 658         unsigned int id, lun;
 659         unsigned long serial;
 660         unsigned long flags;
 661         int wait = 0;
 662         scsi_qla_host_t *pha = to_qla_parent(ha);
 663
 664         qla2x00_block_error_handler(cmd);
 665
 666         if (!CMD_SP(cmd))
 667                 return SUCCESS;
 668
 669         ret = SUCCESS;
 670
 671         id = cmd->device->id;
 672         lun = cmd->device->lun;
 673         serial = cmd->serial_number;
 674
 675         /* Check active list for command command. */
 676         spin_lock_irqsave(&pha->hardware_lock, flags);
 677         for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
 678                 sp = pha->outstanding_cmds[i];
 679
 680                 if (sp == NULL)
 681                         continue;
 682
 683                 if (sp->cmd != cmd)
 684                         continue;
 685
 686                 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld.\n",
 687                     __func__, ha->host_no, sp, serial));
 688
 689                 spin_unlock_irqrestore(&pha->hardware_lock, flags);
 690                 if (ha->isp_ops->abort_command(ha, sp)) {
 691                         DEBUG2(printk("%s(%ld): abort_command "
 692                             "mbx failed.\n", __func__, ha->host_no));
 693                 } else {
 694                         DEBUG3(printk("%s(%ld): abort_command "
 695                             "mbx success.\n", __func__, ha->host_no));
 696                         wait = 1;
 697                 }
 698                 spin_lock_irqsave(&pha->hardware_lock, flags);
 699
 700                 break;
 701         }
 702         spin_unlock_irqrestore(&pha->hardware_lock, flags);
 703
 704         /* Wait for the command to be returned. */
 705         if (wait) {
 706                 if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) {
 707                         qla_printk(KERN_ERR, ha,
 708                             "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
 709                             "%x.\n", ha->host_no, id, lun, serial, ret);
 710                         ret = FAILED;
 711                 }
 712         }
 713
 714         qla_printk(KERN_INFO, ha,
 715             "scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n",
 716             ha->host_no, id, lun, wait, serial, ret);
 717
 718         return ret;
 719 }
 720
 721 enum nexus_wait_type {
 722         WAIT_HOST = 0,
 723         WAIT_TARGET,
 724         WAIT_LUN,
 725 };
 726
 727 static int
 728 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha, unsigned int t,
 729     unsigned int l, enum nexus_wait_type type)
 730 {
 731         int cnt, match, status;
 732         srb_t *sp;
 733         unsigned long flags;
 734         scsi_qla_host_t *pha = to_qla_parent(ha);
 735
 736         status = QLA_SUCCESS;
 737         spin_lock_irqsave(&pha->hardware_lock, flags);
 738         for (cnt = 1; status == QLA_SUCCESS && cnt < MAX_OUTSTANDING_COMMANDS;
 739             cnt++) {
 740                 sp = pha->outstanding_cmds[cnt];
 741                 if (!sp)
 742                         continue;
 743                 if (ha->vp_idx != sp->ha->vp_idx)
 744                         continue;
 745                 match = 0;
 746                 switch (type) {
 747                 case WAIT_HOST:
 748                         match = 1;
 749                         break;
 750                 case WAIT_TARGET:
 751                         match = sp->cmd->device->id == t;
 752                         break;
 753                 case WAIT_LUN:
 754                         match = (sp->cmd->device->id == t &&
 755                             sp->cmd->device->lun == l);
 756                         break;
 757                 }
 758                 if (!match)
 759                         continue;
 760
 761                 spin_unlock_irqrestore(&pha->hardware_lock, flags);
 762                 status = qla2x00_eh_wait_on_command(ha, sp->cmd);
 763                 spin_lock_irqsave(&pha->hardware_lock, flags);
 764         }
 765         spin_unlock_irqrestore(&pha->hardware_lock, flags);
 766
 767         return status;
 768 }
 769
 770 static char *reset_errors[] = {
 771         "HBA not online",
 772         "HBA not ready",
 773         "Task management failed",
 774         "Waiting for command completions",
 775 };
 776
 777 static int
 778 __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
 779     struct scsi_cmnd *cmd, int (*do_reset)(struct fc_port *, unsigned int))
 780 {
 781         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
 782         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 783         int err;
 784
 785         qla2x00_block_error_handler(cmd);
 786
 787         if (!fcport)
 788                 return FAILED;
 789
 790         qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d): %s RESET ISSUED.\n",
 791             ha->host_no, cmd->device->id, cmd->device->lun, name);
 792
 793         err = 0;
 794         if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
 795                 goto eh_reset_failed;
 796         err = 1;
 797         if (qla2x00_wait_for_loop_ready(ha) != QLA_SUCCESS)
 798                 goto eh_reset_failed;
 799         err = 2;
 800         if (do_reset(fcport, cmd->device->lun) != QLA_SUCCESS)
 801                 goto eh_reset_failed;
 802         err = 3;
 803         if (qla2x00_eh_wait_for_pending_commands(ha, cmd->device->id,
 804             cmd->device->lun, type) != QLA_SUCCESS)
 805                 goto eh_reset_failed;
 806
 807         qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d): %s RESET SUCCEEDED.\n",
 808             ha->host_no, cmd->device->id, cmd->device->lun, name);
 809
 810         return SUCCESS;
 811
 812  eh_reset_failed:
 813         qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d): %s RESET FAILED: %s.\n",
 814             ha->host_no, cmd->device->id, cmd->device->lun, name,
 815             reset_errors[err]);
 816         return FAILED;
 817 }
 818
 819 static int
 820 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
 821 {
 822         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
 823
 824         return __qla2xxx_eh_generic_reset("DEVICE", WAIT_LUN, cmd,
 825             ha->isp_ops->lun_reset);
 826 }
 827
 828 static int
 829 qla2xxx_eh_target_reset(struct scsi_cmnd *cmd)
 830 {
 831         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
 832
 833         return __qla2xxx_eh_generic_reset("TARGET", WAIT_TARGET, cmd,
 834             ha->isp_ops->target_reset);
 835 }
 836
 837 /**************************************************************************
 838 * qla2xxx_eh_bus_reset
 839 *
 840 * Description:
 841 *    The bus reset function will reset the bus and abort any executing
 842 *    commands.
 843 *
 844 * Input:
 845 *    cmd = Linux SCSI command packet of the command that cause the
 846 *          bus reset.
 847 *
 848 * Returns:
 849 *    SUCCESS/FAILURE (defined as macro in scsi.h).
 850 *
 851 **************************************************************************/
 852 static int
 853 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
 854 {
 855         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
 856         scsi_qla_host_t *pha = to_qla_parent(ha);
 857         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 858         int ret = FAILED;
 859         unsigned int id, lun;
 860         unsigned long serial;
 861
 862         qla2x00_block_error_handler(cmd);
 863
 864         id = cmd->device->id;
 865         lun = cmd->device->lun;
 866         serial = cmd->serial_number;
 867
 868         if (!fcport)
 869                 return ret;
 870
 871         qla_printk(KERN_INFO, ha,
 872             "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun);
 873
 874         if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) {
 875                 DEBUG2(printk("%s failed:board disabled\n",__func__));
 876                 goto eh_bus_reset_done;
 877         }
 878
 879         if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
 880                 if (qla2x00_loop_reset(ha) == QLA_SUCCESS)
 881                         ret = SUCCESS;
 882         }
 883         if (ret == FAILED)
 884                 goto eh_bus_reset_done;
 885
 886         /* Flush outstanding commands. */
 887         if (qla2x00_eh_wait_for_pending_commands(pha, 0, 0, WAIT_HOST) !=
 888             QLA_SUCCESS)
 889                 ret = FAILED;
 890
 891 eh_bus_reset_done:
 892         qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
 893             (ret == FAILED) ? "failed" : "succeded");
 894
 895         return ret;
 896 }
 897
 898 /**************************************************************************
 899 * qla2xxx_eh_host_reset
 900 *
 901 * Description:
 902 *    The reset function will reset the Adapter.
 903 *
 904 * Input:
 905 *      cmd = Linux SCSI command packet of the command that cause the
 906 *            adapter reset.
 907 *
 908 * Returns:
 909 *      Either SUCCESS or FAILED.
 910 *
 911 * Note:
 912 **************************************************************************/
 913 static int
 914 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
 915 {
 916         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
 917         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 918         int ret = FAILED;
 919         unsigned int id, lun;
 920         unsigned long serial;
 921         scsi_qla_host_t *pha = to_qla_parent(ha);
 922
 923         qla2x00_block_error_handler(cmd);
 924
 925         id = cmd->device->id;
 926         lun = cmd->device->lun;
 927         serial = cmd->serial_number;
 928
 929         if (!fcport)
 930                 return ret;
 931
 932         qla_printk(KERN_INFO, ha,
 933             "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun);
 934
 935         if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
 936                 goto eh_host_reset_lock;
 937
 938         /*
 939          * Fixme-may be dpc thread is active and processing
 940          * loop_resync,so wait a while for it to
 941          * be completed and then issue big hammer.Otherwise
 942          * it may cause I/O failure as big hammer marks the
 943          * devices as lost kicking of the port_down_timer
 944          * while dpc is stuck for the mailbox to complete.
 945          */
 946         qla2x00_wait_for_loop_ready(ha);
 947         set_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
 948         if (qla2x00_abort_isp(pha)) {
 949                 clear_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
 950                 /* failed. schedule dpc to try */
 951                 set_bit(ISP_ABORT_NEEDED, &pha->dpc_flags);
 952
 953                 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
 954                         goto eh_host_reset_lock;
 955         }
 956         clear_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
 957
 958         /* Waiting for our command in done_queue to be returned to OS.*/
 959         if (qla2x00_eh_wait_for_pending_commands(pha, 0, 0, WAIT_HOST) ==
 960             QLA_SUCCESS)
 961                 ret = SUCCESS;
 962
 963         if (ha->parent)
 964                 qla2x00_vp_abort_isp(ha);
 965
 966 eh_host_reset_lock:
 967         qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
 968             (ret == FAILED) ? "failed" : "succeded");
 969
 970         return ret;
 971 }
 972
 973 /*
 974 * qla2x00_loop_reset
 975 *      Issue loop reset.
 976 *
 977 * Input:
 978 *      ha = adapter block pointer.
 979 *
 980 * Returns:
 981 *      0 = success
 982 */
 983 int
 984 qla2x00_loop_reset(scsi_qla_host_t *ha)
 985 {
 986         int ret;
 987         struct fc_port *fcport;
 988
 989         if (ha->flags.enable_lip_full_login) {
 990                 ret = qla2x00_full_login_lip(ha);
 991                 if (ret != QLA_SUCCESS) {
 992                         DEBUG2_3(printk("%s(%ld): bus_reset failed: "
 993                             "full_login_lip=%d.\n", __func__, ha->host_no,
 994                             ret));
 995                 }
 996                 atomic_set(&ha->loop_state, LOOP_DOWN);
 997                 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
 998                 qla2x00_mark_all_devices_lost(ha, 0);
 999                 qla2x00_wait_for_loop_ready(ha);
1000         }
1001
1002         if (ha->flags.enable_lip_reset) {
1003                 ret = qla2x00_lip_reset(ha);
1004                 if (ret != QLA_SUCCESS) {
1005                         DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1006                             "lip_reset=%d.\n", __func__, ha->host_no, ret));
1007                 }
1008                 qla2x00_wait_for_loop_ready(ha);
1009         }
1010
1011         if (ha->flags.enable_target_reset) {
1012                 list_for_each_entry(fcport, &ha->fcports, list) {
1013                         if (fcport->port_type != FCT_TARGET)
1014                                 continue;
1015
1016                         ret = ha->isp_ops->target_reset(fcport, 0);
1017                         if (ret != QLA_SUCCESS) {
1018                                 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1019                                     "target_reset=%d d_id=%x.\n", __func__,
1020                                     ha->host_no, ret, fcport->d_id.b24));
1021                         }
1022                 }
1023         }
1024
1025         /* Issue marker command only when we are going to start the I/O */
1026         ha->marker_needed = 1;
1027
1028         return QLA_SUCCESS;
1029 }
1030
1031 void
1032 qla2x00_abort_all_cmds(scsi_qla_host_t *ha, int res)
1033 {
1034         int cnt;
1035         unsigned long flags;
1036         srb_t *sp;
1037
1038         spin_lock_irqsave(&ha->hardware_lock, flags);
1039         for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
1040                 sp = ha->outstanding_cmds[cnt];
1041                 if (sp) {
1042                         ha->outstanding_cmds[cnt] = NULL;
1043                         sp->flags = 0;
1044                         sp->cmd->result = res;
1045                         sp->cmd->host_scribble = (unsigned char *)NULL;
1046                         qla2x00_sp_compl(ha, sp);
1047                 }
1048         }
1049         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1050 }
1051
1052 static int
1053 qla2xxx_slave_alloc(struct scsi_device *sdev)
1054 {
1055         struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1056
1057         if (!rport || fc_remote_port_chkready(rport))
1058                 return -ENXIO;
1059
1060         sdev->hostdata = *(fc_port_t **)rport->dd_data;
1061
1062         return 0;
1063 }
1064
1065 static int
1066 qla2xxx_slave_configure(struct scsi_device *sdev)
1067 {
1068         scsi_qla_host_t *ha = shost_priv(sdev->host);
1069         struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1070
1071         if (sdev->tagged_supported)
1072                 scsi_activate_tcq(sdev, ha->max_q_depth);
1073         else
1074                 scsi_deactivate_tcq(sdev, ha->max_q_depth);
1075
1076         rport->dev_loss_tmo = ha->port_down_retry_count + 5;
1077
1078         return 0;
1079 }
1080
1081 static void
1082 qla2xxx_slave_destroy(struct scsi_device *sdev)
1083 {
1084         sdev->hostdata = NULL;
1085 }
1086
1087 static int
1088 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1089 {
1090         scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1091         return sdev->queue_depth;
1092 }
1093
1094 static int
1095 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1096 {
1097         if (sdev->tagged_supported) {
1098                 scsi_set_tag_type(sdev, tag_type);
1099                 if (tag_type)
1100                         scsi_activate_tcq(sdev, sdev->queue_depth);
1101                 else
1102                         scsi_deactivate_tcq(sdev, sdev->queue_depth);
1103         } else
1104                 tag_type = 0;
1105
1106         return tag_type;
1107 }
1108
1109 /**
1110  * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1111  * @ha: HA context
1112  *
1113  * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1114  * supported addressing method.
1115  */
1116 static void
1117 qla2x00_config_dma_addressing(scsi_qla_host_t *ha)
1118 {
1119         /* Assume a 32bit DMA mask. */
1120         ha->flags.enable_64bit_addressing = 0;
1121
1122         if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1123                 /* Any upper-dword bits set? */
1124                 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1125                     !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1126                         /* Ok, a 64bit DMA mask is applicable. */
1127                         ha->flags.enable_64bit_addressing = 1;
1128                         ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1129                         ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1130                         return;
1131                 }
1132         }
1133
1134         dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1135         pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
1136 }
1137
1138 static void
1139 qla2x00_enable_intrs(scsi_qla_host_t *ha)
1140 {
1141         unsigned long flags = 0;
1142         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1143
1144         spin_lock_irqsave(&ha->hardware_lock, flags);
1145         ha->interrupts_on = 1;
1146         /* enable risc and host interrupts */
1147         WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1148         RD_REG_WORD(&reg->ictrl);
1149         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1150
1151 }
1152
1153 static void
1154 qla2x00_disable_intrs(scsi_qla_host_t *ha)
1155 {
1156         unsigned long flags = 0;
1157         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1158
1159         spin_lock_irqsave(&ha->hardware_lock, flags);
1160         ha->interrupts_on = 0;
1161         /* disable risc and host interrupts */
1162         WRT_REG_WORD(&reg->ictrl, 0);
1163         RD_REG_WORD(&reg->ictrl);
1164         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1165 }
1166
1167 static void
1168 qla24xx_enable_intrs(scsi_qla_host_t *ha)
1169 {
1170         unsigned long flags = 0;
1171         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1172
1173         spin_lock_irqsave(&ha->hardware_lock, flags);
1174         ha->interrupts_on = 1;
1175         WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1176         RD_REG_DWORD(&reg->ictrl);
1177         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1178 }
1179
1180 static void
1181 qla24xx_disable_intrs(scsi_qla_host_t *ha)
1182 {
1183         unsigned long flags = 0;
1184         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1185
1186         spin_lock_irqsave(&ha->hardware_lock, flags);
1187         ha->interrupts_on = 0;
1188         WRT_REG_DWORD(&reg->ictrl, 0);
1189         RD_REG_DWORD(&reg->ictrl);
1190         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1191 }
1192
1193 static struct isp_operations qla2100_isp_ops = {
1194         .pci_config             = qla2100_pci_config,
1195         .reset_chip             = qla2x00_reset_chip,
1196         .chip_diag              = qla2x00_chip_diag,
1197         .config_rings           = qla2x00_config_rings,
1198         .reset_adapter          = qla2x00_reset_adapter,
1199         .nvram_config           = qla2x00_nvram_config,
1200         .update_fw_options      = qla2x00_update_fw_options,
1201         .load_risc              = qla2x00_load_risc,
1202         .pci_info_str           = qla2x00_pci_info_str,
1203         .fw_version_str         = qla2x00_fw_version_str,
1204         .intr_handler           = qla2100_intr_handler,
1205         .enable_intrs           = qla2x00_enable_intrs,
1206         .disable_intrs          = qla2x00_disable_intrs,
1207         .abort_command          = qla2x00_abort_command,
1208         .target_reset           = qla2x00_abort_target,
1209         .lun_reset              = qla2x00_lun_reset,
1210         .fabric_login           = qla2x00_login_fabric,
1211         .fabric_logout          = qla2x00_fabric_logout,
1212         .calc_req_entries       = qla2x00_calc_iocbs_32,
1213         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1214         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1215         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1216         .read_nvram             = qla2x00_read_nvram_data,
1217         .write_nvram            = qla2x00_write_nvram_data,
1218         .fw_dump                = qla2100_fw_dump,
1219         .beacon_on              = NULL,
1220         .beacon_off             = NULL,
1221         .beacon_blink           = NULL,
1222         .read_optrom            = qla2x00_read_optrom_data,
1223         .write_optrom           = qla2x00_write_optrom_data,
1224         .get_flash_version      = qla2x00_get_flash_version,
1225 };
1226
1227 static struct isp_operations qla2300_isp_ops = {
1228         .pci_config             = qla2300_pci_config,
1229         .reset_chip             = qla2x00_reset_chip,
1230         .chip_diag              = qla2x00_chip_diag,
1231         .config_rings           = qla2x00_config_rings,
1232         .reset_adapter          = qla2x00_reset_adapter,
1233         .nvram_config           = qla2x00_nvram_config,
1234         .update_fw_options      = qla2x00_update_fw_options,
1235         .load_risc              = qla2x00_load_risc,
1236         .pci_info_str           = qla2x00_pci_info_str,
1237         .fw_version_str         = qla2x00_fw_version_str,
1238         .intr_handler           = qla2300_intr_handler,
1239         .enable_intrs           = qla2x00_enable_intrs,
1240         .disable_intrs          = qla2x00_disable_intrs,
1241         .abort_command          = qla2x00_abort_command,
1242         .target_reset           = qla2x00_abort_target,
1243         .lun_reset              = qla2x00_lun_reset,
1244         .fabric_login           = qla2x00_login_fabric,
1245         .fabric_logout          = qla2x00_fabric_logout,
1246         .calc_req_entries       = qla2x00_calc_iocbs_32,
1247         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1248         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1249         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1250         .read_nvram             = qla2x00_read_nvram_data,
1251         .write_nvram            = qla2x00_write_nvram_data,
1252         .fw_dump                = qla2300_fw_dump,
1253         .beacon_on              = qla2x00_beacon_on,
1254         .beacon_off             = qla2x00_beacon_off,
1255         .beacon_blink           = qla2x00_beacon_blink,
1256         .read_optrom            = qla2x00_read_optrom_data,
1257         .write_optrom           = qla2x00_write_optrom_data,
1258         .get_flash_version      = qla2x00_get_flash_version,
1259 };
1260
1261 static struct isp_operations qla24xx_isp_ops = {
1262         .pci_config             = qla24xx_pci_config,
1263         .reset_chip             = qla24xx_reset_chip,
1264         .chip_diag              = qla24xx_chip_diag,
1265         .config_rings           = qla24xx_config_rings,
1266         .reset_adapter          = qla24xx_reset_adapter,
1267         .nvram_config           = qla24xx_nvram_config,
1268         .update_fw_options      = qla24xx_update_fw_options,
1269         .load_risc              = qla24xx_load_risc,
1270         .pci_info_str           = qla24xx_pci_info_str,
1271         .fw_version_str         = qla24xx_fw_version_str,
1272         .intr_handler           = qla24xx_intr_handler,
1273         .enable_intrs           = qla24xx_enable_intrs,
1274         .disable_intrs          = qla24xx_disable_intrs,
1275         .abort_command          = qla24xx_abort_command,
1276         .target_reset           = qla24xx_abort_target,
1277         .lun_reset              = qla24xx_lun_reset,
1278         .fabric_login           = qla24xx_login_fabric,
1279         .fabric_logout          = qla24xx_fabric_logout,
1280         .calc_req_entries       = NULL,
1281         .build_iocbs            = NULL,
1282         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1283         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1284         .read_nvram             = qla24xx_read_nvram_data,
1285         .write_nvram            = qla24xx_write_nvram_data,
1286         .fw_dump                = qla24xx_fw_dump,
1287         .beacon_on              = qla24xx_beacon_on,
1288         .beacon_off             = qla24xx_beacon_off,
1289         .beacon_blink           = qla24xx_beacon_blink,
1290         .read_optrom            = qla24xx_read_optrom_data,
1291         .write_optrom           = qla24xx_write_optrom_data,
1292         .get_flash_version      = qla24xx_get_flash_version,
1293 };
1294
1295 static struct isp_operations qla25xx_isp_ops = {
1296         .pci_config             = qla25xx_pci_config,
1297         .reset_chip             = qla24xx_reset_chip,
1298         .chip_diag              = qla24xx_chip_diag,
1299         .config_rings           = qla24xx_config_rings,
1300         .reset_adapter          = qla24xx_reset_adapter,
1301         .nvram_config           = qla24xx_nvram_config,
1302         .update_fw_options      = qla24xx_update_fw_options,
1303         .load_risc              = qla24xx_load_risc,
1304         .pci_info_str           = qla24xx_pci_info_str,
1305         .fw_version_str         = qla24xx_fw_version_str,
1306         .intr_handler           = qla24xx_intr_handler,
1307         .enable_intrs           = qla24xx_enable_intrs,
1308         .disable_intrs          = qla24xx_disable_intrs,
1309         .abort_command          = qla24xx_abort_command,
1310         .target_reset           = qla24xx_abort_target,
1311         .lun_reset              = qla24xx_lun_reset,
1312         .fabric_login           = qla24xx_login_fabric,
1313         .fabric_logout          = qla24xx_fabric_logout,
1314         .calc_req_entries       = NULL,
1315         .build_iocbs            = NULL,
1316         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1317         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1318         .read_nvram             = qla25xx_read_nvram_data,
1319         .write_nvram            = qla25xx_write_nvram_data,
1320         .fw_dump                = qla25xx_fw_dump,
1321         .beacon_on              = qla24xx_beacon_on,
1322         .beacon_off             = qla24xx_beacon_off,
1323         .beacon_blink           = qla24xx_beacon_blink,
1324         .read_optrom            = qla25xx_read_optrom_data,
1325         .write_optrom           = qla24xx_write_optrom_data,
1326         .get_flash_version      = qla24xx_get_flash_version,
1327 };
1328
1329 static inline void
1330 qla2x00_set_isp_flags(scsi_qla_host_t *ha)
1331 {
1332         ha->device_type = DT_EXTENDED_IDS;
1333         switch (ha->pdev->device) {
1334         case PCI_DEVICE_ID_QLOGIC_ISP2100:
1335                 ha->device_type |= DT_ISP2100;
1336                 ha->device_type &= ~DT_EXTENDED_IDS;
1337                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1338                 break;
1339         case PCI_DEVICE_ID_QLOGIC_ISP2200:
1340                 ha->device_type |= DT_ISP2200;
1341                 ha->device_type &= ~DT_EXTENDED_IDS;
1342                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1343                 break;
1344         case PCI_DEVICE_ID_QLOGIC_ISP2300:
1345                 ha->device_type |= DT_ISP2300;
1346                 ha->device_type |= DT_ZIO_SUPPORTED;
1347                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1348                 break;
1349         case PCI_DEVICE_ID_QLOGIC_ISP2312:
1350                 ha->device_type |= DT_ISP2312;
1351                 ha->device_type |= DT_ZIO_SUPPORTED;
1352                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1353                 break;
1354         case PCI_DEVICE_ID_QLOGIC_ISP2322:
1355                 ha->device_type |= DT_ISP2322;
1356                 ha->device_type |= DT_ZIO_SUPPORTED;
1357                 if (ha->pdev->subsystem_vendor == 0x1028 &&
1358                     ha->pdev->subsystem_device == 0x0170)
1359                         ha->device_type |= DT_OEM_001;
1360                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1361                 break;
1362         case PCI_DEVICE_ID_QLOGIC_ISP6312:
1363                 ha->device_type |= DT_ISP6312;
1364                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1365                 break;
1366         case PCI_DEVICE_ID_QLOGIC_ISP6322:
1367                 ha->device_type |= DT_ISP6322;
1368                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1369                 break;
1370         case PCI_DEVICE_ID_QLOGIC_ISP2422:
1371                 ha->device_type |= DT_ISP2422;
1372                 ha->device_type |= DT_ZIO_SUPPORTED;
1373                 ha->device_type |= DT_FWI2;
1374                 ha->device_type |= DT_IIDMA;
1375                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1376                 break;
1377         case PCI_DEVICE_ID_QLOGIC_ISP2432:
1378                 ha->device_type |= DT_ISP2432;
1379                 ha->device_type |= DT_ZIO_SUPPORTED;
1380                 ha->device_type |= DT_FWI2;
1381                 ha->device_type |= DT_IIDMA;
1382                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1383                 break;
1384         case PCI_DEVICE_ID_QLOGIC_ISP8432:
1385                 ha->device_type |= DT_ISP8432;
1386                 ha->device_type |= DT_ZIO_SUPPORTED;
1387                 ha->device_type |= DT_FWI2;
1388                 ha->device_type |= DT_IIDMA;
1389                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1390                 break;
1391         case PCI_DEVICE_ID_QLOGIC_ISP5422:
1392                 ha->device_type |= DT_ISP5422;
1393                 ha->device_type |= DT_FWI2;
1394                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1395                 break;
1396         case PCI_DEVICE_ID_QLOGIC_ISP5432:
1397                 ha->device_type |= DT_ISP5432;
1398                 ha->device_type |= DT_FWI2;
1399                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1400                 break;
1401         case PCI_DEVICE_ID_QLOGIC_ISP2532:
1402                 ha->device_type |= DT_ISP2532;
1403                 ha->device_type |= DT_ZIO_SUPPORTED;
1404                 ha->device_type |= DT_FWI2;
1405                 ha->device_type |= DT_IIDMA;
1406                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1407                 break;
1408         }
1409 }
1410
1411 static int
1412 qla2x00_iospace_config(scsi_qla_host_t *ha)
1413 {
1414         resource_size_t pio;
1415
1416         if (pci_request_selected_regions(ha->pdev, ha->bars,
1417             QLA2XXX_DRIVER_NAME)) {
1418                 qla_printk(KERN_WARNING, ha,
1419                     "Failed to reserve PIO/MMIO regions (%s)\n",
1420                     pci_name(ha->pdev));
1421
1422                 goto iospace_error_exit;
1423         }
1424         if (!(ha->bars & 1))
1425                 goto skip_pio;
1426
1427         /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1428         pio = pci_resource_start(ha->pdev, 0);
1429         if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
1430                 if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1431                         qla_printk(KERN_WARNING, ha,
1432                             "Invalid PCI I/O region size (%s)...\n",
1433                                 pci_name(ha->pdev));
1434                         pio = 0;
1435                 }
1436         } else {
1437                 qla_printk(KERN_WARNING, ha,
1438                     "region #0 not a PIO resource (%s)...\n",
1439                     pci_name(ha->pdev));
1440                 pio = 0;
1441         }
1442         ha->pio_address = pio;
1443
1444 skip_pio:
1445         /* Use MMIO operations for all accesses. */
1446         if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
1447                 qla_printk(KERN_ERR, ha,
1448                     "region #1 not an MMIO resource (%s), aborting\n",
1449                     pci_name(ha->pdev));
1450                 goto iospace_error_exit;
1451         }
1452         if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
1453                 qla_printk(KERN_ERR, ha,
1454                     "Invalid PCI mem region size (%s), aborting\n",
1455                         pci_name(ha->pdev));
1456                 goto iospace_error_exit;
1457         }
1458
1459         ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
1460         if (!ha->iobase) {
1461                 qla_printk(KERN_ERR, ha,
1462                     "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1463
1464                 goto iospace_error_exit;
1465         }
1466
1467         return (0);
1468
1469 iospace_error_exit:
1470         return (-ENOMEM);
1471 }
1472
1473 static void
1474 qla2xxx_scan_start(struct Scsi_Host *shost)
1475 {
1476         scsi_qla_host_t *ha = shost_priv(shost);
1477
1478         set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
1479         set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1480         set_bit(RSCN_UPDATE, &ha->dpc_flags);
1481 }
1482
1483 static int
1484 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1485 {
1486         scsi_qla_host_t *ha = shost_priv(shost);
1487
1488         if (!ha->host)
1489                 return 1;
1490         if (time > ha->loop_reset_delay * HZ)
1491                 return 1;
1492
1493         return atomic_read(&ha->loop_state) == LOOP_READY;
1494 }
1495
1496 /*
1497  * PCI driver interface
1498  */
1499 static int __devinit
1500 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1501 {
1502         int     ret = -ENODEV;
1503         struct Scsi_Host *host;
1504         scsi_qla_host_t *ha;
1505         char pci_info[30];
1506         char fw_str[30];
1507         struct scsi_host_template *sht;
1508         int bars, mem_only = 0;
1509
1510         bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
1511         sht = &qla2x00_driver_template;
1512         if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1513             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1514             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8432 ||
1515             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1516             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
1517             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532) {
1518                 bars = pci_select_bars(pdev, IORESOURCE_MEM);
1519                 sht = &qla24xx_driver_template;
1520                 mem_only = 1;
1521         }
1522
1523         if (mem_only) {
1524                 if (pci_enable_device_mem(pdev))
1525                         goto probe_out;
1526         } else {
1527                 if (pci_enable_device(pdev))
1528                         goto probe_out;
1529         }
1530
1531         if (pci_find_aer_capability(pdev))
1532                 if (pci_enable_pcie_error_reporting(pdev))
1533                         goto probe_out;
1534
1535         host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
1536         if (host == NULL) {
1537                 printk(KERN_WARNING
1538                     "qla2xxx: Couldn't allocate host from scsi layer!\n");
1539                 goto probe_disable_device;
1540         }
1541
1542         /* Clear our data area */
1543         ha = shost_priv(host);
1544         memset(ha, 0, sizeof(scsi_qla_host_t));
1545
1546         ha->pdev = pdev;
1547         ha->host = host;
1548         ha->host_no = host->host_no;
1549         sprintf(ha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, ha->host_no);
1550         ha->parent = NULL;
1551         ha->bars = bars;
1552         ha->mem_only = mem_only;
1553         spin_lock_init(&ha->hardware_lock);
1554
1555         /* Set ISP-type information. */
1556         qla2x00_set_isp_flags(ha);
1557
1558         /* Configure PCI I/O space */
1559         ret = qla2x00_iospace_config(ha);
1560         if (ret)
1561                 goto probe_failed;
1562
1563         qla_printk(KERN_INFO, ha,
1564             "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1565             ha->iobase);
1566
1567         ha->prev_topology = 0;
1568         ha->init_cb_size = sizeof(init_cb_t);
1569         ha->mgmt_svr_loop_id = MANAGEMENT_SERVER + ha->vp_idx;
1570         ha->link_data_rate = PORT_SPEED_UNKNOWN;
1571         ha->optrom_size = OPTROM_SIZE_2300;
1572
1573         ha->max_q_depth = MAX_Q_DEPTH;
1574         if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
1575                 ha->max_q_depth = ql2xmaxqdepth;
1576
1577         /* Assign ISP specific operations. */
1578         if (IS_QLA2100(ha)) {
1579                 host->max_id = MAX_TARGETS_2100;
1580                 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1581                 ha->request_q_length = REQUEST_ENTRY_CNT_2100;
1582                 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1583                 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1584                 host->sg_tablesize = 32;
1585                 ha->gid_list_info_size = 4;
1586                 ha->isp_ops = &qla2100_isp_ops;
1587         } else if (IS_QLA2200(ha)) {
1588                 host->max_id = MAX_TARGETS_2200;
1589                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1590                 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1591                 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1592                 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1593                 ha->gid_list_info_size = 4;
1594                 ha->isp_ops = &qla2100_isp_ops;
1595         } else if (IS_QLA23XX(ha)) {
1596                 host->max_id = MAX_TARGETS_2200;
1597                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1598                 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1599                 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1600                 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1601                 ha->gid_list_info_size = 6;
1602                 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1603                         ha->optrom_size = OPTROM_SIZE_2322;
1604                 ha->isp_ops = &qla2300_isp_ops;
1605         } else if (IS_QLA24XX_TYPE(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_24XX;
1615                 ha->isp_ops = &qla24xx_isp_ops;
1616         } else if (IS_QLA25XX(ha)) {
1617                 host->max_id = MAX_TARGETS_2200;
1618                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1619                 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1620                 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1621                 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1622                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1623                 ha->mgmt_svr_loop_id = 10 + ha->vp_idx;
1624                 ha->gid_list_info_size = 8;
1625                 ha->optrom_size = OPTROM_SIZE_25XX;
1626                 ha->isp_ops = &qla25xx_isp_ops;
1627                 ha->hw_event_start = PCI_FUNC(pdev->devfn) ?
1628                     FA_HW_EVENT1_ADDR: FA_HW_EVENT0_ADDR;
1629         }
1630         host->can_queue = ha->request_q_length + 128;
1631
1632         /* load the F/W, read paramaters, and init the H/W */
1633         ha->instance = num_hosts;
1634
1635         mutex_init(&ha->vport_lock);
1636         init_completion(&ha->mbx_cmd_comp);
1637         complete(&ha->mbx_cmd_comp);
1638         init_completion(&ha->mbx_intr_comp);
1639
1640         INIT_LIST_HEAD(&ha->list);
1641         INIT_LIST_HEAD(&ha->fcports);
1642         INIT_LIST_HEAD(&ha->vp_list);
1643         INIT_LIST_HEAD(&ha->work_list);
1644
1645         set_bit(0, (unsigned long *) ha->vp_idx_map);
1646
1647         qla2x00_config_dma_addressing(ha);
1648         if (qla2x00_mem_alloc(ha)) {
1649                 qla_printk(KERN_WARNING, ha,
1650                     "[ERROR] Failed to allocate memory for adapter\n");
1651
1652                 ret = -ENOMEM;
1653                 goto probe_failed;
1654         }
1655
1656         if (qla2x00_initialize_adapter(ha)) {
1657                 qla_printk(KERN_WARNING, ha,
1658                     "Failed to initialize adapter\n");
1659
1660                 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1661                     "Adapter flags %x.\n",
1662                     ha->host_no, ha->device_flags));
1663
1664                 ret = -ENODEV;
1665                 goto probe_failed;
1666         }
1667
1668         /*
1669          * Startup the kernel thread for this host adapter
1670          */
1671         ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
1672                         "%s_dpc", ha->host_str);
1673         if (IS_ERR(ha->dpc_thread)) {
1674                 qla_printk(KERN_WARNING, ha,
1675                     "Unable to start DPC thread!\n");
1676                 ret = PTR_ERR(ha->dpc_thread);
1677                 goto probe_failed;
1678         }
1679
1680         host->this_id = 255;
1681         host->cmd_per_lun = 3;
1682         host->unique_id = ha->instance;
1683         host->max_cmd_len = MAX_CMDSZ;
1684         host->max_channel = MAX_BUSES - 1;
1685         host->max_lun = MAX_LUNS;
1686         host->transportt = qla2xxx_transport_template;
1687
1688         ret = qla2x00_request_irqs(ha);
1689         if (ret)
1690                 goto probe_failed;
1691
1692         /* Initialized the timer */
1693         qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL);
1694
1695         DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1696             ha->host_no, ha));
1697
1698         pci_set_drvdata(pdev, ha);
1699
1700         ha->flags.init_done = 1;
1701         ha->flags.online = 1;
1702
1703         num_hosts++;
1704
1705         ret = scsi_add_host(host, &pdev->dev);
1706         if (ret)
1707                 goto probe_failed;
1708
1709         scsi_scan_host(host);
1710
1711         qla2x00_alloc_sysfs_attr(ha);
1712
1713         qla2x00_init_host_attr(ha);
1714
1715         qla2x00_dfs_setup(ha);
1716
1717         qla_printk(KERN_INFO, ha, "\n"
1718             " QLogic Fibre Channel HBA Driver: %s\n"
1719             "  QLogic %s - %s\n"
1720             "  ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1721             qla2x00_version_str, ha->model_number,
1722             ha->model_desc ? ha->model_desc: "", pdev->device,
1723             ha->isp_ops->pci_info_str(ha, pci_info), pci_name(pdev),
1724             ha->flags.enable_64bit_addressing ? '+': '-', ha->host_no,
1725             ha->isp_ops->fw_version_str(ha, fw_str));
1726
1727         return 0;
1728
1729 probe_failed:
1730         qla2x00_free_device(ha);
1731
1732         scsi_host_put(host);
1733
1734 probe_disable_device:
1735         pci_disable_device(pdev);
1736
1737 probe_out:
1738         return ret;
1739 }
1740
1741 static void
1742 qla2x00_remove_one(struct pci_dev *pdev)
1743 {
1744         scsi_qla_host_t *ha;
1745
1746         ha = pci_get_drvdata(pdev);
1747
1748         qla2x00_dfs_remove(ha);
1749
1750         qla84xx_put_chip(ha);
1751
1752         qla2x00_free_sysfs_attr(ha);
1753
1754         fc_remove_host(ha->host);
1755
1756         scsi_remove_host(ha->host);
1757
1758         qla2x00_free_device(ha);
1759
1760         scsi_host_put(ha->host);
1761
1762         pci_disable_device(pdev);
1763         pci_set_drvdata(pdev, NULL);
1764 }
1765
1766 static void
1767 qla2x00_free_device(scsi_qla_host_t *ha)
1768 {
1769         qla2x00_abort_all_cmds(ha, DID_NO_CONNECT << 16);
1770
1771         /* Disable timer */
1772         if (ha->timer_active)
1773                 qla2x00_stop_timer(ha);
1774
1775         ha->flags.online = 0;
1776
1777         /* Kill the kernel thread for this host */
1778         if (ha->dpc_thread) {
1779                 struct task_struct *t = ha->dpc_thread;
1780
1781                 /*
1782                  * qla2xxx_wake_dpc checks for ->dpc_thread
1783                  * so we need to zero it out.
1784                  */
1785                 ha->dpc_thread = NULL;
1786                 kthread_stop(t);
1787         }
1788
1789         if (ha->flags.fce_enabled)
1790                 qla2x00_disable_fce_trace(ha, NULL, NULL);
1791
1792         if (ha->eft)
1793                 qla2x00_disable_eft_trace(ha);
1794
1795         /* Stop currently executing firmware. */
1796         qla2x00_try_to_stop_firmware(ha);
1797
1798         /* turn-off interrupts on the card */
1799         if (ha->interrupts_on)
1800                 ha->isp_ops->disable_intrs(ha);
1801
1802         qla2x00_mem_free(ha);
1803
1804         qla2x00_free_irqs(ha);
1805
1806         /* release io space registers  */
1807         if (ha->iobase)
1808                 iounmap(ha->iobase);
1809         pci_release_selected_regions(ha->pdev, ha->bars);
1810 }
1811
1812 static inline void
1813 qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport,
1814     int defer)
1815 {
1816         unsigned long flags;
1817         struct fc_rport *rport;
1818
1819         if (!fcport->rport)
1820                 return;
1821
1822         rport = fcport->rport;
1823         if (defer) {
1824                 spin_lock_irqsave(&fcport->rport_lock, flags);
1825                 fcport->drport = rport;
1826                 fcport->rport = NULL;
1827                 *(fc_port_t **)rport->dd_data = NULL;
1828                 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1829                 set_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags);
1830         } else {
1831                 spin_lock_irqsave(&fcport->rport_lock, flags);
1832                 fcport->rport = NULL;
1833                 *(fc_port_t **)rport->dd_data = NULL;
1834                 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1835                 fc_remote_port_delete(rport);
1836         }
1837 }
1838
1839 /*
1840  * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1841  *
1842  * Input: ha = adapter block pointer.  fcport = port structure pointer.
1843  *
1844  * Return: None.
1845  *
1846  * Context:
1847  */
1848 void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport,
1849     int do_login, int defer)
1850 {
1851         if (atomic_read(&fcport->state) == FCS_ONLINE &&
1852             ha->vp_idx == fcport->vp_idx)
1853                 qla2x00_schedule_rport_del(ha, fcport, defer);
1854
1855         /*
1856          * We may need to retry the login, so don't change the state of the
1857          * port but do the retries.
1858          */
1859         if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
1860                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1861
1862         if (!do_login)
1863                 return;
1864
1865         if (fcport->login_retry == 0) {
1866                 fcport->login_retry = ha->login_retry_count;
1867                 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
1868
1869                 DEBUG(printk("scsi(%ld): Port login retry: "
1870                     "%02x%02x%02x%02x%02x%02x%02x%02x, "
1871                     "id = 0x%04x retry cnt=%d\n",
1872                     ha->host_no,
1873                     fcport->port_name[0],
1874                     fcport->port_name[1],
1875                     fcport->port_name[2],
1876                     fcport->port_name[3],
1877                     fcport->port_name[4],
1878                     fcport->port_name[5],
1879                     fcport->port_name[6],
1880                     fcport->port_name[7],
1881                     fcport->loop_id,
1882                     fcport->login_retry));
1883         }
1884 }
1885
1886 /*
1887  * qla2x00_mark_all_devices_lost
1888  *      Updates fcport state when device goes offline.
1889  *
1890  * Input:
1891  *      ha = adapter block pointer.
1892  *      fcport = port structure pointer.
1893  *
1894  * Return:
1895  *      None.
1896  *
1897  * Context:
1898  */
1899 void
1900 qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer)
1901 {
1902         fc_port_t *fcport;
1903         scsi_qla_host_t *pha = to_qla_parent(ha);
1904
1905         list_for_each_entry(fcport, &pha->fcports, list) {
1906                 if (ha->vp_idx != 0 && ha->vp_idx != fcport->vp_idx)
1907                         continue;
1908                 /*
1909                  * No point in marking the device as lost, if the device is
1910                  * already DEAD.
1911                  */
1912                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
1913                         continue;
1914                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
1915                         if (defer)
1916                                 qla2x00_schedule_rport_del(ha, fcport, defer);
1917                         else if (ha->vp_idx == fcport->vp_idx)
1918                                 qla2x00_schedule_rport_del(ha, fcport, defer);
1919                 }
1920                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1921         }
1922
1923         if (defer)
1924                 qla2xxx_wake_dpc(ha);
1925 }
1926
1927 /*
1928 * qla2x00_mem_alloc
1929 *      Allocates adapter memory.
1930 *
1931 * Returns:
1932 *      0  = success.
1933 *      !0  = failure.
1934 */
1935 static int
1936 qla2x00_mem_alloc(scsi_qla_host_t *ha)
1937 {
1938         char    name[16];
1939
1940         ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
1941             (ha->request_q_length + 1) * sizeof(request_t), &ha->request_dma,
1942             GFP_KERNEL);
1943         if (!ha->request_ring)
1944                 goto fail;
1945
1946         ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
1947             (ha->response_q_length + 1) * sizeof(response_t),
1948             &ha->response_dma, GFP_KERNEL);
1949         if (!ha->response_ring)
1950                 goto fail_free_request_ring;
1951
1952         ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
1953             &ha->gid_list_dma, GFP_KERNEL);
1954         if (!ha->gid_list)
1955                 goto fail_free_response_ring;
1956
1957         ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
1958             &ha->init_cb_dma, GFP_KERNEL);
1959         if (!ha->init_cb)
1960                 goto fail_free_gid_list;
1961
1962         snprintf(name, sizeof(name), "%s_%ld", QLA2XXX_DRIVER_NAME,
1963             ha->host_no);
1964         ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
1965             DMA_POOL_SIZE, 8, 0);
1966         if (!ha->s_dma_pool)
1967                 goto fail_free_init_cb;
1968
1969         ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
1970         if (!ha->srb_mempool)
1971                 goto fail_free_s_dma_pool;
1972
1973         /* Get memory for cached NVRAM */
1974         ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
1975         if (!ha->nvram)
1976                 goto fail_free_srb_mempool;
1977
1978         /* Allocate memory for SNS commands */
1979         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
1980                 /* Get consistent memory allocated for SNS commands */
1981                 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
1982                     sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
1983                 if (!ha->sns_cmd)
1984                         goto fail_free_nvram;
1985         } else {
1986                 /* Get consistent memory allocated for MS IOCB */
1987                 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1988                     &ha->ms_iocb_dma);
1989                 if (!ha->ms_iocb)
1990                         goto fail_free_nvram;
1991
1992                 /* Get consistent memory allocated for CT SNS commands */
1993                 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
1994                     sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
1995                 if (!ha->ct_sns)
1996                         goto fail_free_ms_iocb;
1997         }
1998
1999         return 0;
2000
2001 fail_free_ms_iocb:
2002         dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2003         ha->ms_iocb = NULL;
2004         ha->ms_iocb_dma = 0;
2005 fail_free_nvram:
2006         kfree(ha->nvram);
2007         ha->nvram = NULL;
2008 fail_free_srb_mempool:
2009         mempool_destroy(ha->srb_mempool);
2010         ha->srb_mempool = NULL;
2011 fail_free_s_dma_pool:
2012         dma_pool_destroy(ha->s_dma_pool);
2013         ha->s_dma_pool = NULL;
2014 fail_free_init_cb:
2015         dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
2016             ha->init_cb_dma);
2017         ha->init_cb = NULL;
2018         ha->init_cb_dma = 0;
2019 fail_free_gid_list:
2020         dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2021             ha->gid_list_dma);
2022         ha->gid_list = NULL;
2023         ha->gid_list_dma = 0;
2024 fail_free_response_ring:
2025         dma_free_coherent(&ha->pdev->dev, (ha->response_q_length + 1) *
2026             sizeof(response_t), ha->response_ring, ha->response_dma);
2027         ha->response_ring = NULL;
2028         ha->response_dma = 0;
2029 fail_free_request_ring:
2030         dma_free_coherent(&ha->pdev->dev, (ha->request_q_length + 1) *
2031             sizeof(request_t), ha->request_ring, ha->request_dma);
2032         ha->request_ring = NULL;
2033         ha->request_dma = 0;
2034 fail:
2035         return -ENOMEM;
2036 }
2037
2038 /*
2039 * qla2x00_mem_free
2040 *      Frees all adapter allocated memory.
2041 *
2042 * Input:
2043 *      ha = adapter block pointer.
2044 */
2045 static void
2046 qla2x00_mem_free(scsi_qla_host_t *ha)
2047 {
2048         struct list_head        *fcpl, *fcptemp;
2049         fc_port_t       *fcport;
2050
2051         if (ha->srb_mempool)
2052                 mempool_destroy(ha->srb_mempool);
2053
2054         if (ha->fce)
2055                 dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
2056                     ha->fce_dma);
2057
2058         if (ha->fw_dump) {
2059                 if (ha->eft)
2060                         dma_free_coherent(&ha->pdev->dev,
2061                             ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2062                 vfree(ha->fw_dump);
2063         }
2064
2065         if (ha->sns_cmd)
2066                 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2067                     ha->sns_cmd, ha->sns_cmd_dma);
2068
2069         if (ha->ct_sns)
2070                 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2071                     ha->ct_sns, ha->ct_sns_dma);
2072
2073         if (ha->sfp_data)
2074                 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2075
2076         if (ha->ms_iocb)
2077                 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2078
2079         if (ha->s_dma_pool)
2080                 dma_pool_destroy(ha->s_dma_pool);
2081
2082         if (ha->init_cb)
2083                 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
2084                     ha->init_cb, ha->init_cb_dma);
2085
2086         if (ha->gid_list)
2087                 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2088                     ha->gid_list_dma);
2089
2090         if (ha->response_ring)
2091                 dma_free_coherent(&ha->pdev->dev,
2092                     (ha->response_q_length + 1) * sizeof(response_t),
2093                     ha->response_ring, ha->response_dma);
2094
2095         if (ha->request_ring)
2096                 dma_free_coherent(&ha->pdev->dev,
2097                     (ha->request_q_length + 1) * sizeof(request_t),
2098                     ha->request_ring, ha->request_dma);
2099
2100         ha->srb_mempool = NULL;
2101         ha->eft = NULL;
2102         ha->eft_dma = 0;
2103         ha->sns_cmd = NULL;
2104         ha->sns_cmd_dma = 0;
2105         ha->ct_sns = NULL;
2106         ha->ct_sns_dma = 0;
2107         ha->ms_iocb = NULL;
2108         ha->ms_iocb_dma = 0;
2109         ha->init_cb = NULL;
2110         ha->init_cb_dma = 0;
2111
2112         ha->s_dma_pool = NULL;
2113
2114         ha->gid_list = NULL;
2115         ha->gid_list_dma = 0;
2116
2117         ha->response_ring = NULL;
2118         ha->response_dma = 0;
2119         ha->request_ring = NULL;
2120         ha->request_dma = 0;
2121
2122         list_for_each_safe(fcpl, fcptemp, &ha->fcports) {
2123                 fcport = list_entry(fcpl, fc_port_t, list);
2124
2125                 /* fc ports */
2126                 list_del_init(&fcport->list);
2127                 kfree(fcport);
2128         }
2129         INIT_LIST_HEAD(&ha->fcports);
2130
2131         ha->fw_dump = NULL;
2132         ha->fw_dumped = 0;
2133         ha->fw_dump_reading = 0;
2134
2135         vfree(ha->optrom_buffer);
2136         kfree(ha->nvram);
2137 }
2138
2139 static struct qla_work_evt *
2140 qla2x00_alloc_work(struct scsi_qla_host *ha, enum qla_work_type type,
2141     int locked)
2142 {
2143         struct qla_work_evt *e;
2144
2145         e = kzalloc(sizeof(struct qla_work_evt), locked ? GFP_ATOMIC:
2146             GFP_KERNEL);
2147         if (!e)
2148                 return NULL;
2149
2150         INIT_LIST_HEAD(&e->list);
2151         e->type = type;
2152         e->flags = QLA_EVT_FLAG_FREE;
2153         return e;
2154 }
2155
2156 static int
2157 qla2x00_post_work(struct scsi_qla_host *ha, struct qla_work_evt *e, int locked)
2158 {
2159         unsigned long flags;
2160         scsi_qla_host_t *pha = to_qla_parent(ha);
2161
2162         if (!locked)
2163                 spin_lock_irqsave(&pha->hardware_lock, flags);
2164         list_add_tail(&e->list, &ha->work_list);
2165         qla2xxx_wake_dpc(ha);
2166         if (!locked)
2167                 spin_unlock_irqrestore(&pha->hardware_lock, flags);
2168         return QLA_SUCCESS;
2169 }
2170
2171 int
2172 qla2x00_post_aen_work(struct scsi_qla_host *ha, enum fc_host_event_code code,
2173     u32 data)
2174 {
2175         struct qla_work_evt *e;
2176
2177         e = qla2x00_alloc_work(ha, QLA_EVT_AEN, 1);
2178         if (!e)
2179                 return QLA_FUNCTION_FAILED;
2180
2181         e->u.aen.code = code;
2182         e->u.aen.data = data;
2183         return qla2x00_post_work(ha, e, 1);
2184 }
2185
2186 int
2187 qla2x00_post_hwe_work(struct scsi_qla_host *ha, uint16_t code, uint16_t d1,
2188     uint16_t d2, uint16_t d3)
2189 {
2190         struct qla_work_evt *e;
2191
2192         e = qla2x00_alloc_work(ha, QLA_EVT_HWE_LOG, 1);
2193         if (!e)
2194                 return QLA_FUNCTION_FAILED;
2195
2196         e->u.hwe.code = code;
2197         e->u.hwe.d1 = d1;
2198         e->u.hwe.d2 = d2;
2199         e->u.hwe.d3 = d3;
2200         return qla2x00_post_work(ha, e, 1);
2201 }
2202
2203 static void
2204 qla2x00_do_work(struct scsi_qla_host *ha)
2205 {
2206         struct qla_work_evt *e;
2207         scsi_qla_host_t *pha = to_qla_parent(ha);
2208
2209         spin_lock_irq(&pha->hardware_lock);
2210         while (!list_empty(&ha->work_list)) {
2211                 e = list_entry(ha->work_list.next, struct qla_work_evt, list);
2212                 list_del_init(&e->list);
2213                 spin_unlock_irq(&pha->hardware_lock);
2214
2215                 switch (e->type) {
2216                 case QLA_EVT_AEN:
2217                         fc_host_post_event(ha->host, fc_get_event_number(),
2218                             e->u.aen.code, e->u.aen.data);
2219                         break;
2220                 case QLA_EVT_HWE_LOG:
2221                         qla2xxx_hw_event_log(ha, e->u.hwe.code, e->u.hwe.d1,
2222                             e->u.hwe.d2, e->u.hwe.d3);
2223                         break;
2224                 }
2225                 if (e->flags & QLA_EVT_FLAG_FREE)
2226                         kfree(e);
2227                 spin_lock_irq(&pha->hardware_lock);
2228         }
2229         spin_unlock_irq(&pha->hardware_lock);
2230 }
2231
2232 /**************************************************************************
2233 * qla2x00_do_dpc
2234 *   This kernel thread is a task that is schedule by the interrupt handler
2235 *   to perform the background processing for interrupts.
2236 *
2237 * Notes:
2238 * This task always run in the context of a kernel thread.  It
2239 * is kick-off by the driver's detect code and starts up
2240 * up one per adapter. It immediately goes to sleep and waits for
2241 * some fibre event.  When either the interrupt handler or
2242 * the timer routine detects a event it will one of the task
2243 * bits then wake us up.
2244 **************************************************************************/
2245 static int
2246 qla2x00_do_dpc(void *data)
2247 {
2248         int             rval;
2249         scsi_qla_host_t *ha;
2250         fc_port_t       *fcport;
2251         uint8_t         status;
2252         uint16_t        next_loopid;
2253         struct scsi_qla_host *vha;
2254         int             i;
2255
2256
2257         ha = (scsi_qla_host_t *)data;
2258
2259         set_user_nice(current, -20);
2260
2261         while (!kthread_should_stop()) {
2262                 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2263
2264                 set_current_state(TASK_INTERRUPTIBLE);
2265                 schedule();
2266                 __set_current_state(TASK_RUNNING);
2267
2268                 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2269
2270                 /* Initialization not yet finished. Don't do anything yet. */
2271                 if (!ha->flags.init_done)
2272                         continue;
2273
2274                 DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no));
2275
2276                 ha->dpc_active = 1;
2277
2278                 if (ha->flags.mbox_busy) {
2279                         ha->dpc_active = 0;
2280                         continue;
2281                 }
2282
2283                 qla2x00_do_work(ha);
2284
2285                 if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2286
2287                         DEBUG(printk("scsi(%ld): dpc: sched "
2288                             "qla2x00_abort_isp ha = %p\n",
2289                             ha->host_no, ha));
2290                         if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2291                             &ha->dpc_flags))) {
2292
2293                                 if (qla2x00_abort_isp(ha)) {
2294                                         /* failed. retry later */
2295                                         set_bit(ISP_ABORT_NEEDED,
2296                                             &ha->dpc_flags);
2297                                 }
2298                                 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2299                         }
2300
2301                         for_each_mapped_vp_idx(ha, i) {
2302                                 list_for_each_entry(vha, &ha->vp_list,
2303                                     vp_list) {
2304                                         if (i == vha->vp_idx) {
2305                                                 set_bit(ISP_ABORT_NEEDED,
2306                                                     &vha->dpc_flags);
2307                                                 break;
2308                                         }
2309                                 }
2310                         }
2311
2312                         DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2313                             ha->host_no));
2314                 }
2315
2316                 if (test_and_clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags))
2317                         qla2x00_update_fcports(ha);
2318
2319                 if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) &&
2320                     (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) {
2321
2322                         DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2323                             ha->host_no));
2324
2325                         qla2x00_rst_aen(ha);
2326                         clear_bit(RESET_ACTIVE, &ha->dpc_flags);
2327                 }
2328
2329                 /* Retry each device up to login retry count */
2330                 if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2331                     !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) &&
2332                     atomic_read(&ha->loop_state) != LOOP_DOWN) {
2333
2334                         DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2335                             ha->host_no));
2336
2337                         next_loopid = 0;
2338                         list_for_each_entry(fcport, &ha->fcports, list) {
2339                                 /*
2340                                  * If the port is not ONLINE then try to login
2341                                  * to it if we haven't run out of retries.
2342                                  */
2343                                 if (atomic_read(&fcport->state) != FCS_ONLINE &&
2344                                     fcport->login_retry) {
2345
2346                                         if (fcport->flags & FCF_FABRIC_DEVICE) {
2347                                                 if (fcport->flags &
2348                                                     FCF_TAPE_PRESENT)
2349                                                         ha->isp_ops->fabric_logout(
2350                                                             ha, fcport->loop_id,
2351                                                             fcport->d_id.b.domain,
2352                                                             fcport->d_id.b.area,
2353                                                             fcport->d_id.b.al_pa);
2354                                                 status = qla2x00_fabric_login(
2355                                                     ha, fcport, &next_loopid);
2356                                         } else
2357                                                 status =
2358                                                     qla2x00_local_device_login(
2359                                                         ha, fcport);
2360
2361                                         fcport->login_retry--;
2362                                         if (status == QLA_SUCCESS) {
2363                                                 fcport->old_loop_id = fcport->loop_id;
2364
2365                                                 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2366                                                     ha->host_no, fcport->loop_id));
2367
2368                                                 qla2x00_update_fcport(ha,
2369                                                     fcport);
2370                                         } else if (status == 1) {
2371                                                 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
2372                                                 /* retry the login again */
2373                                                 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2374                                                     ha->host_no,
2375                                                     fcport->login_retry, fcport->loop_id));
2376                                         } else {
2377                                                 fcport->login_retry = 0;
2378                                         }
2379                                         if (fcport->login_retry == 0 && status != QLA_SUCCESS)
2380                                                 fcport->loop_id = FC_NO_LOOP_ID;
2381                                 }
2382                                 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2383                                         break;
2384                         }
2385                         DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2386                             ha->host_no));
2387                 }
2388
2389                 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2390
2391                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2392                             ha->host_no));
2393
2394                         if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2395                             &ha->dpc_flags))) {
2396
2397                                 rval = qla2x00_loop_resync(ha);
2398
2399                                 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
2400                         }
2401
2402                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2403                             ha->host_no));
2404                 }
2405
2406                 if (!ha->interrupts_on)
2407                         ha->isp_ops->enable_intrs(ha);
2408
2409                 if (test_and_clear_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags))
2410                         ha->isp_ops->beacon_blink(ha);
2411
2412                 qla2x00_do_dpc_all_vps(ha);
2413
2414                 ha->dpc_active = 0;
2415         } /* End of while(1) */
2416
2417         DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no));
2418
2419         /*
2420          * Make sure that nobody tries to wake us up again.
2421          */
2422         ha->dpc_active = 0;
2423
2424         return 0;
2425 }
2426
2427 void
2428 qla2xxx_wake_dpc(scsi_qla_host_t *ha)
2429 {
2430         if (ha->dpc_thread)
2431                 wake_up_process(ha->dpc_thread);
2432 }
2433
2434 /*
2435 *  qla2x00_rst_aen
2436 *      Processes asynchronous reset.
2437 *
2438 * Input:
2439 *      ha  = adapter block pointer.
2440 */
2441 static void
2442 qla2x00_rst_aen(scsi_qla_host_t *ha)
2443 {
2444         if (ha->flags.online && !ha->flags.reset_active &&
2445             !atomic_read(&ha->loop_down_timer) &&
2446             !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
2447                 do {
2448                         clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2449
2450                         /*
2451                          * Issue marker command only when we are going to start
2452                          * the I/O.
2453                          */
2454                         ha->marker_needed = 1;
2455                 } while (!atomic_read(&ha->loop_down_timer) &&
2456                     (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags)));
2457         }
2458 }
2459
2460 static void
2461 qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp)
2462 {
2463         struct scsi_cmnd *cmd = sp->cmd;
2464
2465         if (sp->flags & SRB_DMA_VALID) {
2466                 scsi_dma_unmap(cmd);
2467                 sp->flags &= ~SRB_DMA_VALID;
2468         }
2469         CMD_SP(cmd) = NULL;
2470 }
2471
2472 void
2473 qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp)
2474 {
2475         struct scsi_cmnd *cmd = sp->cmd;
2476
2477         qla2x00_sp_free_dma(ha, sp);
2478
2479         mempool_free(sp, ha->srb_mempool);
2480
2481         cmd->scsi_done(cmd);
2482 }
2483
2484 /**************************************************************************
2485 *   qla2x00_timer
2486 *
2487 * Description:
2488 *   One second timer
2489 *
2490 * Context: Interrupt
2491 ***************************************************************************/
2492 void
2493 qla2x00_timer(scsi_qla_host_t *ha)
2494 {
2495         unsigned long   cpu_flags = 0;
2496         fc_port_t       *fcport;
2497         int             start_dpc = 0;
2498         int             index;
2499         srb_t           *sp;
2500         int             t;
2501         scsi_qla_host_t *pha = to_qla_parent(ha);
2502
2503         /*
2504          * Ports - Port down timer.
2505          *
2506          * Whenever, a port is in the LOST state we start decrementing its port
2507          * down timer every second until it reaches zero. Once  it reaches zero
2508          * the port it marked DEAD.
2509          */
2510         t = 0;
2511         list_for_each_entry(fcport, &ha->fcports, list) {
2512                 if (fcport->port_type != FCT_TARGET)
2513                         continue;
2514
2515                 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2516
2517                         if (atomic_read(&fcport->port_down_timer) == 0)
2518                                 continue;
2519
2520                         if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
2521                                 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
2522
2523                         DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
2524                             "%d remaining\n",
2525                             ha->host_no,
2526                             t, atomic_read(&fcport->port_down_timer)));
2527                 }
2528                 t++;
2529         } /* End of for fcport  */
2530
2531
2532         /* Loop down handler. */
2533         if (atomic_read(&ha->loop_down_timer) > 0 &&
2534             !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) {
2535
2536                 if (atomic_read(&ha->loop_down_timer) ==
2537                     ha->loop_down_abort_time) {
2538
2539                         DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2540                             "queues before time expire\n",
2541                             ha->host_no));
2542
2543                         if (!IS_QLA2100(ha) && ha->link_down_timeout)
2544                                 atomic_set(&ha->loop_state, LOOP_DEAD);
2545
2546                         /* Schedule an ISP abort to return any tape commands. */
2547                         /* NPIV - scan physical port only */
2548                         if (!ha->parent) {
2549                                 spin_lock_irqsave(&ha->hardware_lock,
2550                                     cpu_flags);
2551                                 for (index = 1;
2552                                     index < MAX_OUTSTANDING_COMMANDS;
2553                                     index++) {
2554                                         fc_port_t *sfcp;
2555
2556                                         sp = ha->outstanding_cmds[index];
2557                                         if (!sp)
2558                                                 continue;
2559                                         sfcp = sp->fcport;
2560                                         if (!(sfcp->flags & FCF_TAPE_PRESENT))
2561                                                 continue;
2562
2563                                         set_bit(ISP_ABORT_NEEDED,
2564                                             &ha->dpc_flags);
2565                                         break;
2566                                 }
2567                                 spin_unlock_irqrestore(&ha->hardware_lock,
2568                                     cpu_flags);
2569                         }
2570                         set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags);
2571                         start_dpc++;
2572                 }
2573
2574                 /* if the loop has been down for 4 minutes, reinit adapter */
2575                 if (atomic_dec_and_test(&ha->loop_down_timer) != 0) {
2576                         DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2577                             "restarting queues.\n",
2578                             ha->host_no));
2579
2580                         set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags);
2581                         start_dpc++;
2582
2583                         if (!(ha->device_flags & DFLG_NO_CABLE) &&
2584                             !ha->parent) {
2585                                 DEBUG(printk("scsi(%ld): Loop down - "
2586                                     "aborting ISP.\n",
2587                                     ha->host_no));
2588                                 qla_printk(KERN_WARNING, ha,
2589                                     "Loop down - aborting ISP.\n");
2590
2591                                 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2592                         }
2593                 }
2594                 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
2595                     ha->host_no,
2596                     atomic_read(&ha->loop_down_timer)));
2597         }
2598
2599         /* Check if beacon LED needs to be blinked */
2600         if (ha->beacon_blink_led == 1) {
2601                 set_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags);
2602                 start_dpc++;
2603         }
2604
2605         /* Process any deferred work. */
2606         if (!list_empty(&ha->work_list))
2607                 start_dpc++;
2608
2609         /* Schedule the DPC routine if needed */
2610         if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) ||
2611             test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) ||
2612             test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags) ||
2613             start_dpc ||
2614             test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) ||
2615             test_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags) ||
2616             test_bit(VP_DPC_NEEDED, &ha->dpc_flags) ||
2617             test_bit(RELOGIN_NEEDED, &ha->dpc_flags)))
2618                 qla2xxx_wake_dpc(pha);
2619
2620         qla2x00_restart_timer(ha, WATCH_INTERVAL);
2621 }
2622
2623 /* Firmware interface routines. */
2624
2625 #define FW_BLOBS        6
2626 #define FW_ISP21XX      0
2627 #define FW_ISP22XX      1
2628 #define FW_ISP2300      2
2629 #define FW_ISP2322      3
2630 #define FW_ISP24XX      4
2631 #define FW_ISP25XX      5
2632
2633 #define FW_FILE_ISP21XX "ql2100_fw.bin"
2634 #define FW_FILE_ISP22XX "ql2200_fw.bin"
2635 #define FW_FILE_ISP2300 "ql2300_fw.bin"
2636 #define FW_FILE_ISP2322 "ql2322_fw.bin"
2637 #define FW_FILE_ISP24XX "ql2400_fw.bin"
2638 #define FW_FILE_ISP25XX "ql2500_fw.bin"
2639
2640 static DEFINE_MUTEX(qla_fw_lock);
2641
2642 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
2643         { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
2644         { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
2645         { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
2646         { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
2647         { .name = FW_FILE_ISP24XX, },
2648         { .name = FW_FILE_ISP25XX, },
2649 };
2650
2651 struct fw_blob *
2652 qla2x00_request_firmware(scsi_qla_host_t *ha)
2653 {
2654         struct fw_blob *blob;
2655
2656         blob = NULL;
2657         if (IS_QLA2100(ha)) {
2658                 blob = &qla_fw_blobs[FW_ISP21XX];
2659         } else if (IS_QLA2200(ha)) {
2660                 blob = &qla_fw_blobs[FW_ISP22XX];
2661         } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
2662                 blob = &qla_fw_blobs[FW_ISP2300];
2663         } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
2664                 blob = &qla_fw_blobs[FW_ISP2322];
2665         } else if (IS_QLA24XX_TYPE(ha)) {
2666                 blob = &qla_fw_blobs[FW_ISP24XX];
2667         } else if (IS_QLA25XX(ha)) {
2668                 blob = &qla_fw_blobs[FW_ISP25XX];
2669         }
2670
2671         mutex_lock(&qla_fw_lock);
2672         if (blob->fw)
2673                 goto out;
2674
2675         if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
2676                 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
2677                     "(%s).\n", ha->host_no, blob->name));
2678                 blob->fw = NULL;
2679                 blob = NULL;
2680                 goto out;
2681         }
2682
2683 out:
2684         mutex_unlock(&qla_fw_lock);
2685         return blob;
2686 }
2687
2688 static void
2689 qla2x00_release_firmware(void)
2690 {
2691         int idx;
2692
2693         mutex_lock(&qla_fw_lock);
2694         for (idx = 0; idx < FW_BLOBS; idx++)
2695                 if (qla_fw_blobs[idx].fw)
2696                         release_firmware(qla_fw_blobs[idx].fw);
2697         mutex_unlock(&qla_fw_lock);
2698 }
2699
2700 static pci_ers_result_t
2701 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
2702 {
2703         switch (state) {
2704         case pci_channel_io_normal:
2705                 return PCI_ERS_RESULT_CAN_RECOVER;
2706         case pci_channel_io_frozen:
2707                 pci_disable_device(pdev);
2708                 return PCI_ERS_RESULT_NEED_RESET;
2709         case pci_channel_io_perm_failure:
2710                 qla2x00_remove_one(pdev);
2711                 return PCI_ERS_RESULT_DISCONNECT;
2712         }
2713         return PCI_ERS_RESULT_NEED_RESET;
2714 }
2715
2716 static pci_ers_result_t
2717 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
2718 {
2719         int risc_paused = 0;
2720         uint32_t stat;
2721         unsigned long flags;
2722         scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2723         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2724         struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
2725
2726         spin_lock_irqsave(&ha->hardware_lock, flags);
2727         if (IS_QLA2100(ha) || IS_QLA2200(ha)){
2728                 stat = RD_REG_DWORD(&reg->hccr);
2729                 if (stat & HCCR_RISC_PAUSE)
2730                         risc_paused = 1;
2731         } else if (IS_QLA23XX(ha)) {
2732                 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
2733                 if (stat & HSR_RISC_PAUSED)
2734                         risc_paused = 1;
2735         } else if (IS_FWI2_CAPABLE(ha)) {
2736                 stat = RD_REG_DWORD(&reg24->host_status);
2737                 if (stat & HSRX_RISC_PAUSED)
2738                         risc_paused = 1;
2739         }
2740         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2741
2742         if (risc_paused) {
2743                 qla_printk(KERN_INFO, ha, "RISC paused -- mmio_enabled, "
2744                     "Dumping firmware!\n");
2745                 ha->isp_ops->fw_dump(ha, 0);
2746
2747                 return PCI_ERS_RESULT_NEED_RESET;
2748         } else
2749                 return PCI_ERS_RESULT_RECOVERED;
2750 }
2751
2752 static pci_ers_result_t
2753 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
2754 {
2755         pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
2756         scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2757         int rc;
2758
2759         if (ha->mem_only)
2760                 rc = pci_enable_device_mem(pdev);
2761         else
2762                 rc = pci_enable_device(pdev);
2763
2764         if (rc) {
2765                 qla_printk(KERN_WARNING, ha,
2766                     "Can't re-enable PCI device after reset.\n");
2767
2768                 return ret;
2769         }
2770         pci_set_master(pdev);
2771
2772         if (ha->isp_ops->pci_config(ha))
2773                 return ret;
2774
2775         set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2776         if (qla2x00_abort_isp(ha)== QLA_SUCCESS)
2777                 ret =  PCI_ERS_RESULT_RECOVERED;
2778         clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2779
2780         return ret;
2781 }
2782
2783 static void
2784 qla2xxx_pci_resume(struct pci_dev *pdev)
2785 {
2786         scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2787         int ret;
2788
2789         ret = qla2x00_wait_for_hba_online(ha);
2790         if (ret != QLA_SUCCESS) {
2791                 qla_printk(KERN_ERR, ha,
2792                     "the device failed to resume I/O "
2793                     "from slot/link_reset");
2794         }
2795         pci_cleanup_aer_uncorrect_error_status(pdev);
2796 }
2797
2798 static struct pci_error_handlers qla2xxx_err_handler = {
2799         .error_detected = qla2xxx_pci_error_detected,
2800         .mmio_enabled = qla2xxx_pci_mmio_enabled,
2801         .slot_reset = qla2xxx_pci_slot_reset,
2802         .resume = qla2xxx_pci_resume,
2803 };
2804
2805 static struct pci_device_id qla2xxx_pci_tbl[] = {
2806         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
2807         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
2808         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
2809         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
2810         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
2811         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
2812         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
2813         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
2814         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
2815         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) },
2816         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
2817         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
2818         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
2819         { 0 },
2820 };
2821 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
2822
2823 static struct pci_driver qla2xxx_pci_driver = {
2824         .name           = QLA2XXX_DRIVER_NAME,
2825         .driver         = {
2826                 .owner          = THIS_MODULE,
2827         },
2828         .id_table       = qla2xxx_pci_tbl,
2829         .probe          = qla2x00_probe_one,
2830         .remove         = qla2x00_remove_one,
2831         .err_handler    = &qla2xxx_err_handler,
2832 };
2833
2834 /**
2835  * qla2x00_module_init - Module initialization.
2836  **/
2837 static int __init
2838 qla2x00_module_init(void)
2839 {
2840         int ret = 0;
2841
2842         /* Allocate cache for SRBs. */
2843         srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
2844             SLAB_HWCACHE_ALIGN, NULL);
2845         if (srb_cachep == NULL) {
2846                 printk(KERN_ERR
2847                     "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2848                 return -ENOMEM;
2849         }
2850
2851         /* Derive version string. */
2852         strcpy(qla2x00_version_str, QLA2XXX_VERSION);
2853         if (ql2xextended_error_logging)
2854                 strcat(qla2x00_version_str, "-debug");
2855
2856         qla2xxx_transport_template =
2857             fc_attach_transport(&qla2xxx_transport_functions);
2858         if (!qla2xxx_transport_template) {
2859                 kmem_cache_destroy(srb_cachep);
2860                 return -ENODEV;
2861         }
2862         qla2xxx_transport_vport_template =
2863             fc_attach_transport(&qla2xxx_transport_vport_functions);
2864         if (!qla2xxx_transport_vport_template) {
2865                 kmem_cache_destroy(srb_cachep);
2866                 fc_release_transport(qla2xxx_transport_template);
2867                 return -ENODEV;
2868         }
2869
2870         printk(KERN_INFO "QLogic Fibre Channel HBA Driver: %s\n",
2871             qla2x00_version_str);
2872         ret = pci_register_driver(&qla2xxx_pci_driver);
2873         if (ret) {
2874                 kmem_cache_destroy(srb_cachep);
2875                 fc_release_transport(qla2xxx_transport_template);
2876                 fc_release_transport(qla2xxx_transport_vport_template);
2877         }
2878         return ret;
2879 }
2880
2881 /**
2882  * qla2x00_module_exit - Module cleanup.
2883  **/
2884 static void __exit
2885 qla2x00_module_exit(void)
2886 {
2887         pci_unregister_driver(&qla2xxx_pci_driver);
2888         qla2x00_release_firmware();
2889         kmem_cache_destroy(srb_cachep);
2890         fc_release_transport(qla2xxx_transport_template);
2891         fc_release_transport(qla2xxx_transport_vport_template);
2892 }
2893
2894 module_init(qla2x00_module_init);
2895 module_exit(qla2x00_module_exit);
2896
2897 MODULE_AUTHOR("QLogic Corporation");
2898 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
2899 MODULE_LICENSE("GPL");
2900 MODULE_VERSION(QLA2XXX_VERSION);
2901 MODULE_FIRMWARE(FW_FILE_ISP21XX);
2902 MODULE_FIRMWARE(FW_FILE_ISP22XX);
2903 MODULE_FIRMWARE(FW_FILE_ISP2300);
2904 MODULE_FIRMWARE(FW_FILE_ISP2322);
2905 MODULE_FIRMWARE(FW_FILE_ISP24XX);
2906 MODULE_FIRMWARE(FW_FILE_ISP25XX);