git.oblomov.eu Git - linux-2.6/blob - drivers/scsi/qla2xxx/qla_os.c

   1 /*
   2  * QLogic Fibre Channel HBA Driver
   3  * Copyright (c)  2003-2005 QLogic Corporation
   4  *
   5  * See LICENSE.qla2xxx for copyright and licensing details.
   6  */
   7 #include "qla_def.h"
   8
   9 #include <linux/moduleparam.h>
  10 #include <linux/vmalloc.h>
  11 #include <linux/delay.h>
  12 #include <linux/kthread.h>
  13
  14 #include <scsi/scsi_tcq.h>
  15 #include <scsi/scsicam.h>
  16 #include <scsi/scsi_transport.h>
  17 #include <scsi/scsi_transport_fc.h>
  18
  19 /*
  20  * Driver version
  21  */
  22 char qla2x00_version_str[40];
  23
  24 /*
  25  * SRB allocation cache
  26  */
  27 static struct kmem_cache *srb_cachep;
  28
  29 /*
  30  * Ioctl related information.
  31  */
  32 int num_hosts;
  33 int ql2xlogintimeout = 20;
  34 module_param(ql2xlogintimeout, int, S_IRUGO|S_IRUSR);
  35 MODULE_PARM_DESC(ql2xlogintimeout,
  36                 "Login timeout value in seconds.");
  37
  38 int qlport_down_retry;
  39 module_param(qlport_down_retry, int, S_IRUGO|S_IRUSR);
  40 MODULE_PARM_DESC(qlport_down_retry,
  41                 "Maximum number of command retries to a port that returns "
  42                 "a PORT-DOWN status.");
  43
  44 int ql2xplogiabsentdevice;
  45 module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
  46 MODULE_PARM_DESC(ql2xplogiabsentdevice,
  47                 "Option to enable PLOGI to devices that are not present after "
  48                 "a Fabric scan.  This is needed for several broken switches. "
  49                 "Default is 0 - no PLOGI. 1 - perfom PLOGI.");
  50
  51 int ql2xloginretrycount = 0;
  52 module_param(ql2xloginretrycount, int, S_IRUGO|S_IRUSR);
  53 MODULE_PARM_DESC(ql2xloginretrycount,
  54                 "Specify an alternate value for the NVRAM login retry count.");
  55
  56 int ql2xallocfwdump = 1;
  57 module_param(ql2xallocfwdump, int, S_IRUGO|S_IRUSR);
  58 MODULE_PARM_DESC(ql2xallocfwdump,
  59                 "Option to enable allocation of memory for a firmware dump "
  60                 "during HBA initialization.  Memory allocation requirements "
  61                 "vary by ISP type.  Default is 1 - allocate memory.");
  62
  63 int ql2xextended_error_logging;
  64 module_param(ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
  65 MODULE_PARM_DESC(ql2xextended_error_logging,
  66                 "Option to enable extended error logging, "
  67                 "Default is 0 - no logging. 1 - log errors.");
  68
  69 static void qla2x00_free_device(scsi_qla_host_t *);
  70
  71 static void qla2x00_config_dma_addressing(scsi_qla_host_t *ha);
  72
  73 int ql2xfdmienable;
  74 module_param(ql2xfdmienable, int, S_IRUGO|S_IRUSR);
  75 MODULE_PARM_DESC(ql2xfdmienable,
  76                 "Enables FDMI registratons "
  77                 "Default is 0 - no FDMI. 1 - perfom FDMI.");
  78
  79 #define MAX_Q_DEPTH    32
  80 static int ql2xmaxqdepth = MAX_Q_DEPTH;
  81 module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
  82 MODULE_PARM_DESC(ql2xmaxqdepth,
  83                 "Maximum queue depth to report for target devices.");
  84
  85 int ql2xqfullrampup = 120;
  86 module_param(ql2xqfullrampup, int, S_IRUGO|S_IWUSR);
  87 MODULE_PARM_DESC(ql2xqfullrampup,
  88                 "Number of seconds to wait to begin to ramp-up the queue "
  89                 "depth for a device after a queue-full condition has been "
  90                 "detected.  Default is 120 seconds.");
  91
  92 /*
  93  * SCSI host template entry points
  94  */
  95 static int qla2xxx_slave_configure(struct scsi_device * device);
  96 static int qla2xxx_slave_alloc(struct scsi_device *);
  97 static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
  98 static void qla2xxx_scan_start(struct Scsi_Host *);
  99 static void qla2xxx_slave_destroy(struct scsi_device *);
 100 static int qla2x00_queuecommand(struct scsi_cmnd *cmd,
 101                 void (*fn)(struct scsi_cmnd *));
 102 static int qla24xx_queuecommand(struct scsi_cmnd *cmd,
 103                 void (*fn)(struct scsi_cmnd *));
 104 static int qla2xxx_eh_abort(struct scsi_cmnd *);
 105 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
 106 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
 107 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
 108 static int qla2x00_loop_reset(scsi_qla_host_t *ha);
 109 static int qla2x00_device_reset(scsi_qla_host_t *, fc_port_t *);
 110
 111 static int qla2x00_change_queue_depth(struct scsi_device *, int);
 112 static int qla2x00_change_queue_type(struct scsi_device *, int);
 113
 114 struct scsi_host_template qla2x00_driver_template = {
 115         .module                 = THIS_MODULE,
 116         .name                   = QLA2XXX_DRIVER_NAME,
 117         .queuecommand           = qla2x00_queuecommand,
 118
 119         .eh_abort_handler       = qla2xxx_eh_abort,
 120         .eh_device_reset_handler = qla2xxx_eh_device_reset,
 121         .eh_bus_reset_handler   = qla2xxx_eh_bus_reset,
 122         .eh_host_reset_handler  = qla2xxx_eh_host_reset,
 123
 124         .slave_configure        = qla2xxx_slave_configure,
 125
 126         .slave_alloc            = qla2xxx_slave_alloc,
 127         .slave_destroy          = qla2xxx_slave_destroy,
 128         .scan_finished          = qla2xxx_scan_finished,
 129         .scan_start             = qla2xxx_scan_start,
 130         .change_queue_depth     = qla2x00_change_queue_depth,
 131         .change_queue_type      = qla2x00_change_queue_type,
 132         .this_id                = -1,
 133         .cmd_per_lun            = 3,
 134         .use_clustering         = ENABLE_CLUSTERING,
 135         .sg_tablesize           = SG_ALL,
 136
 137         /*
 138          * The RISC allows for each command to transfer (2^32-1) bytes of data,
 139          * which equates to 0x800000 sectors.
 140          */
 141         .max_sectors            = 0xFFFF,
 142         .shost_attrs            = qla2x00_host_attrs,
 143 };
 144
 145 struct scsi_host_template qla24xx_driver_template = {
 146         .module                 = THIS_MODULE,
 147         .name                   = QLA2XXX_DRIVER_NAME,
 148         .queuecommand           = qla24xx_queuecommand,
 149
 150         .eh_abort_handler       = qla2xxx_eh_abort,
 151         .eh_device_reset_handler = qla2xxx_eh_device_reset,
 152         .eh_bus_reset_handler   = qla2xxx_eh_bus_reset,
 153         .eh_host_reset_handler  = qla2xxx_eh_host_reset,
 154
 155         .slave_configure        = qla2xxx_slave_configure,
 156
 157         .slave_alloc            = qla2xxx_slave_alloc,
 158         .slave_destroy          = qla2xxx_slave_destroy,
 159         .scan_finished          = qla2xxx_scan_finished,
 160         .scan_start             = qla2xxx_scan_start,
 161         .change_queue_depth     = qla2x00_change_queue_depth,
 162         .change_queue_type      = qla2x00_change_queue_type,
 163         .this_id                = -1,
 164         .cmd_per_lun            = 3,
 165         .use_clustering         = ENABLE_CLUSTERING,
 166         .sg_tablesize           = SG_ALL,
 167
 168         .max_sectors            = 0xFFFF,
 169         .shost_attrs            = qla2x00_host_attrs,
 170 };
 171
 172 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
 173 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
 174
 175 /* TODO Convert to inlines
 176  *
 177  * Timer routines
 178  */
 179
 180 void qla2x00_timer(scsi_qla_host_t *);
 181
 182 __inline__ void qla2x00_start_timer(scsi_qla_host_t *,
 183     void *, unsigned long);
 184 static __inline__ void qla2x00_restart_timer(scsi_qla_host_t *, unsigned long);
 185 __inline__ void qla2x00_stop_timer(scsi_qla_host_t *);
 186
 187 __inline__ void
 188 qla2x00_start_timer(scsi_qla_host_t *ha, void *func, unsigned long interval)
 189 {
 190         init_timer(&ha->timer);
 191         ha->timer.expires = jiffies + interval * HZ;
 192         ha->timer.data = (unsigned long)ha;
 193         ha->timer.function = (void (*)(unsigned long))func;
 194         add_timer(&ha->timer);
 195         ha->timer_active = 1;
 196 }
 197
 198 static inline void
 199 qla2x00_restart_timer(scsi_qla_host_t *ha, unsigned long interval)
 200 {
 201         mod_timer(&ha->timer, jiffies + interval * HZ);
 202 }
 203
 204 __inline__ void
 205 qla2x00_stop_timer(scsi_qla_host_t *ha)
 206 {
 207         del_timer_sync(&ha->timer);
 208         ha->timer_active = 0;
 209 }
 210
 211 static int qla2x00_do_dpc(void *data);
 212
 213 static void qla2x00_rst_aen(scsi_qla_host_t *);
 214
 215 uint8_t qla2x00_mem_alloc(scsi_qla_host_t *);
 216 void qla2x00_mem_free(scsi_qla_host_t *ha);
 217 static int qla2x00_allocate_sp_pool( scsi_qla_host_t *ha);
 218 static void qla2x00_free_sp_pool(scsi_qla_host_t *ha);
 219 static void qla2x00_sp_free_dma(scsi_qla_host_t *, srb_t *);
 220 void qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *);
 221
 222 /* -------------------------------------------------------------------------- */
 223
 224 static char *
 225 qla2x00_pci_info_str(struct scsi_qla_host *ha, char *str)
 226 {
 227         static char *pci_bus_modes[] = {
 228                 "33", "66", "100", "133",
 229         };
 230         uint16_t pci_bus;
 231
 232         strcpy(str, "PCI");
 233         pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
 234         if (pci_bus) {
 235                 strcat(str, "-X (");
 236                 strcat(str, pci_bus_modes[pci_bus]);
 237         } else {
 238                 pci_bus = (ha->pci_attr & BIT_8) >> 8;
 239                 strcat(str, " (");
 240                 strcat(str, pci_bus_modes[pci_bus]);
 241         }
 242         strcat(str, " MHz)");
 243
 244         return (str);
 245 }
 246
 247 static char *
 248 qla24xx_pci_info_str(struct scsi_qla_host *ha, char *str)
 249 {
 250         static char *pci_bus_modes[] = { "33", "66", "100", "133", };
 251         uint32_t pci_bus;
 252         int pcie_reg;
 253
 254         pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
 255         if (pcie_reg) {
 256                 char lwstr[6];
 257                 uint16_t pcie_lstat, lspeed, lwidth;
 258
 259                 pcie_reg += 0x12;
 260                 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
 261                 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
 262                 lwidth = (pcie_lstat &
 263                     (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
 264
 265                 strcpy(str, "PCIe (");
 266                 if (lspeed == 1)
 267                         strcat(str, "2.5Gb/s ");
 268                 else
 269                         strcat(str, "<unknown> ");
 270                 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
 271                 strcat(str, lwstr);
 272
 273                 return str;
 274         }
 275
 276         strcpy(str, "PCI");
 277         pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
 278         if (pci_bus == 0 || pci_bus == 8) {
 279                 strcat(str, " (");
 280                 strcat(str, pci_bus_modes[pci_bus >> 3]);
 281         } else {
 282                 strcat(str, "-X ");
 283                 if (pci_bus & BIT_2)
 284                         strcat(str, "Mode 2");
 285                 else
 286                         strcat(str, "Mode 1");
 287                 strcat(str, " (");
 288                 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
 289         }
 290         strcat(str, " MHz)");
 291
 292         return str;
 293 }
 294
 295 static char *
 296 qla2x00_fw_version_str(struct scsi_qla_host *ha, char *str)
 297 {
 298         char un_str[10];
 299
 300         sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
 301             ha->fw_minor_version,
 302             ha->fw_subminor_version);
 303
 304         if (ha->fw_attributes & BIT_9) {
 305                 strcat(str, "FLX");
 306                 return (str);
 307         }
 308
 309         switch (ha->fw_attributes & 0xFF) {
 310         case 0x7:
 311                 strcat(str, "EF");
 312                 break;
 313         case 0x17:
 314                 strcat(str, "TP");
 315                 break;
 316         case 0x37:
 317                 strcat(str, "IP");
 318                 break;
 319         case 0x77:
 320                 strcat(str, "VI");
 321                 break;
 322         default:
 323                 sprintf(un_str, "(%x)", ha->fw_attributes);
 324                 strcat(str, un_str);
 325                 break;
 326         }
 327         if (ha->fw_attributes & 0x100)
 328                 strcat(str, "X");
 329
 330         return (str);
 331 }
 332
 333 static char *
 334 qla24xx_fw_version_str(struct scsi_qla_host *ha, char *str)
 335 {
 336         sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
 337             ha->fw_minor_version,
 338             ha->fw_subminor_version);
 339
 340         if (ha->fw_attributes & BIT_0)
 341                 strcat(str, "[Class 2] ");
 342         if (ha->fw_attributes & BIT_1)
 343                 strcat(str, "[IP] ");
 344         if (ha->fw_attributes & BIT_2)
 345                 strcat(str, "[Multi-ID] ");
 346         if (ha->fw_attributes & BIT_13)
 347                 strcat(str, "[Experimental]");
 348         return str;
 349 }
 350
 351 static inline srb_t *
 352 qla2x00_get_new_sp(scsi_qla_host_t *ha, fc_port_t *fcport,
 353     struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 354 {
 355         srb_t *sp;
 356
 357         sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
 358         if (!sp)
 359                 return sp;
 360
 361         sp->ha = ha;
 362         sp->fcport = fcport;
 363         sp->cmd = cmd;
 364         sp->flags = 0;
 365         CMD_SP(cmd) = (void *)sp;
 366         cmd->scsi_done = done;
 367
 368         return sp;
 369 }
 370
 371 static int
 372 qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 373 {
 374         scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
 375         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 376         struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
 377         srb_t *sp;
 378         int rval;
 379
 380         rval = fc_remote_port_chkready(rport);
 381         if (rval) {
 382                 cmd->result = rval;
 383                 goto qc_fail_command;
 384         }
 385
 386         /* Close window on fcport/rport state-transitioning. */
 387         if (!*(fc_port_t **)rport->dd_data) {
 388                 cmd->result = DID_IMM_RETRY << 16;
 389                 goto qc_fail_command;
 390         }
 391
 392         if (atomic_read(&fcport->state) != FCS_ONLINE) {
 393                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
 394                     atomic_read(&ha->loop_state) == LOOP_DEAD) {
 395                         cmd->result = DID_NO_CONNECT << 16;
 396                         goto qc_fail_command;
 397                 }
 398                 goto qc_host_busy;
 399         }
 400
 401         spin_unlock_irq(ha->host->host_lock);
 402
 403         sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
 404         if (!sp)
 405                 goto qc_host_busy_lock;
 406
 407         rval = qla2x00_start_scsi(sp);
 408         if (rval != QLA_SUCCESS)
 409                 goto qc_host_busy_free_sp;
 410
 411         spin_lock_irq(ha->host->host_lock);
 412
 413         return 0;
 414
 415 qc_host_busy_free_sp:
 416         qla2x00_sp_free_dma(ha, sp);
 417         mempool_free(sp, ha->srb_mempool);
 418
 419 qc_host_busy_lock:
 420         spin_lock_irq(ha->host->host_lock);
 421
 422 qc_host_busy:
 423         return SCSI_MLQUEUE_HOST_BUSY;
 424
 425 qc_fail_command:
 426         done(cmd);
 427
 428         return 0;
 429 }
 430
 431
 432 static int
 433 qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 434 {
 435         scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
 436         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 437         struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
 438         srb_t *sp;
 439         int rval;
 440         scsi_qla_host_t *pha = to_qla_parent(ha);
 441
 442         rval = fc_remote_port_chkready(rport);
 443         if (rval) {
 444                 cmd->result = rval;
 445                 goto qc24_fail_command;
 446         }
 447
 448         /* Close window on fcport/rport state-transitioning. */
 449         if (!*(fc_port_t **)rport->dd_data) {
 450                 cmd->result = DID_IMM_RETRY << 16;
 451                 goto qc24_fail_command;
 452         }
 453
 454         if (atomic_read(&fcport->state) != FCS_ONLINE) {
 455                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
 456                     atomic_read(&pha->loop_state) == LOOP_DEAD) {
 457                         cmd->result = DID_NO_CONNECT << 16;
 458                         goto qc24_fail_command;
 459                 }
 460                 goto qc24_host_busy;
 461         }
 462
 463         spin_unlock_irq(ha->host->host_lock);
 464
 465         sp = qla2x00_get_new_sp(pha, fcport, cmd, done);
 466         if (!sp)
 467                 goto qc24_host_busy_lock;
 468
 469         rval = qla24xx_start_scsi(sp);
 470         if (rval != QLA_SUCCESS)
 471                 goto qc24_host_busy_free_sp;
 472
 473         spin_lock_irq(ha->host->host_lock);
 474
 475         return 0;
 476
 477 qc24_host_busy_free_sp:
 478         qla2x00_sp_free_dma(pha, sp);
 479         mempool_free(sp, pha->srb_mempool);
 480
 481 qc24_host_busy_lock:
 482         spin_lock_irq(ha->host->host_lock);
 483
 484 qc24_host_busy:
 485         return SCSI_MLQUEUE_HOST_BUSY;
 486
 487 qc24_fail_command:
 488         done(cmd);
 489
 490         return 0;
 491 }
 492
 493
 494 /*
 495  * qla2x00_eh_wait_on_command
 496  *    Waits for the command to be returned by the Firmware for some
 497  *    max time.
 498  *
 499  * Input:
 500  *    ha = actual ha whose done queue will contain the command
 501  *            returned by firmware.
 502  *    cmd = Scsi Command to wait on.
 503  *    flag = Abort/Reset(Bus or Device Reset)
 504  *
 505  * Return:
 506  *    Not Found : 0
 507  *    Found : 1
 508  */
 509 static int
 510 qla2x00_eh_wait_on_command(scsi_qla_host_t *ha, struct scsi_cmnd *cmd)
 511 {
 512 #define ABORT_POLLING_PERIOD    1000
 513 #define ABORT_WAIT_ITER         ((10 * 1000) / (ABORT_POLLING_PERIOD))
 514         unsigned long wait_iter = ABORT_WAIT_ITER;
 515         int ret = QLA_SUCCESS;
 516
 517         while (CMD_SP(cmd)) {
 518                 msleep(ABORT_POLLING_PERIOD);
 519
 520                 if (--wait_iter)
 521                         break;
 522         }
 523         if (CMD_SP(cmd))
 524                 ret = QLA_FUNCTION_FAILED;
 525
 526         return ret;
 527 }
 528
 529 /*
 530  * qla2x00_wait_for_hba_online
 531  *    Wait till the HBA is online after going through
 532  *    <= MAX_RETRIES_OF_ISP_ABORT  or
 533  *    finally HBA is disabled ie marked offline
 534  *
 535  * Input:
 536  *     ha - pointer to host adapter structure
 537  *
 538  * Note:
 539  *    Does context switching-Release SPIN_LOCK
 540  *    (if any) before calling this routine.
 541  *
 542  * Return:
 543  *    Success (Adapter is online) : 0
 544  *    Failed  (Adapter is offline/disabled) : 1
 545  */
 546 int
 547 qla2x00_wait_for_hba_online(scsi_qla_host_t *ha)
 548 {
 549         int             return_status;
 550         unsigned long   wait_online;
 551         scsi_qla_host_t *pha = to_qla_parent(ha);
 552
 553         wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 554         while (((test_bit(ISP_ABORT_NEEDED, &pha->dpc_flags)) ||
 555             test_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags) ||
 556             test_bit(ISP_ABORT_RETRY, &pha->dpc_flags) ||
 557             pha->dpc_active) && time_before(jiffies, wait_online)) {
 558
 559                 msleep(1000);
 560         }
 561         if (pha->flags.online)
 562                 return_status = QLA_SUCCESS;
 563         else
 564                 return_status = QLA_FUNCTION_FAILED;
 565
 566         DEBUG2(printk("%s return_status=%d\n",__func__,return_status));
 567
 568         return (return_status);
 569 }
 570
 571 /*
 572  * qla2x00_wait_for_loop_ready
 573  *    Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
 574  *    to be in LOOP_READY state.
 575  * Input:
 576  *     ha - pointer to host adapter structure
 577  *
 578  * Note:
 579  *    Does context switching-Release SPIN_LOCK
 580  *    (if any) before calling this routine.
 581  *
 582  *
 583  * Return:
 584  *    Success (LOOP_READY) : 0
 585  *    Failed  (LOOP_NOT_READY) : 1
 586  */
 587 static inline int
 588 qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha)
 589 {
 590         int      return_status = QLA_SUCCESS;
 591         unsigned long loop_timeout ;
 592         scsi_qla_host_t *pha = to_qla_parent(ha);
 593
 594         /* wait for 5 min at the max for loop to be ready */
 595         loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 596
 597         while ((!atomic_read(&pha->loop_down_timer) &&
 598             atomic_read(&pha->loop_state) == LOOP_DOWN) ||
 599             atomic_read(&pha->loop_state) != LOOP_READY) {
 600                 if (atomic_read(&pha->loop_state) == LOOP_DEAD) {
 601                         return_status = QLA_FUNCTION_FAILED;
 602                         break;
 603                 }
 604                 msleep(1000);
 605                 if (time_after_eq(jiffies, loop_timeout)) {
 606                         return_status = QLA_FUNCTION_FAILED;
 607                         break;
 608                 }
 609         }
 610         return (return_status);
 611 }
 612
 613 static void
 614 qla2x00_block_error_handler(struct scsi_cmnd *cmnd)
 615 {
 616         struct Scsi_Host *shost = cmnd->device->host;
 617         struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
 618         unsigned long flags;
 619
 620         spin_lock_irqsave(shost->host_lock, flags);
 621         while (rport->port_state == FC_PORTSTATE_BLOCKED) {
 622                 spin_unlock_irqrestore(shost->host_lock, flags);
 623                 msleep(1000);
 624                 spin_lock_irqsave(shost->host_lock, flags);
 625         }
 626         spin_unlock_irqrestore(shost->host_lock, flags);
 627         return;
 628 }
 629
 630 /**************************************************************************
 631 * qla2xxx_eh_abort
 632 *
 633 * Description:
 634 *    The abort function will abort the specified command.
 635 *
 636 * Input:
 637 *    cmd = Linux SCSI command packet to be aborted.
 638 *
 639 * Returns:
 640 *    Either SUCCESS or FAILED.
 641 *
 642 * Note:
 643 *    Only return FAILED if command not returned by firmware.
 644 **************************************************************************/
 645 static int
 646 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
 647 {
 648         scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
 649         srb_t *sp;
 650         int ret, i;
 651         unsigned int id, lun;
 652         unsigned long serial;
 653         unsigned long flags;
 654         int wait = 0;
 655         scsi_qla_host_t *pha = to_qla_parent(ha);
 656
 657         qla2x00_block_error_handler(cmd);
 658
 659         if (!CMD_SP(cmd))
 660                 return SUCCESS;
 661
 662         ret = SUCCESS;
 663
 664         id = cmd->device->id;
 665         lun = cmd->device->lun;
 666         serial = cmd->serial_number;
 667
 668         /* Check active list for command command. */
 669         spin_lock_irqsave(&pha->hardware_lock, flags);
 670         for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
 671                 sp = pha->outstanding_cmds[i];
 672
 673                 if (sp == NULL)
 674                         continue;
 675
 676                 if (sp->cmd != cmd)
 677                         continue;
 678
 679                 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld.\n",
 680                     __func__, ha->host_no, sp, serial));
 681                 DEBUG3(qla2x00_print_scsi_cmd(cmd));
 682
 683                 spin_unlock_irqrestore(&pha->hardware_lock, flags);
 684                 if (ha->isp_ops.abort_command(ha, sp)) {
 685                         DEBUG2(printk("%s(%ld): abort_command "
 686                             "mbx failed.\n", __func__, ha->host_no));
 687                 } else {
 688                         DEBUG3(printk("%s(%ld): abort_command "
 689                             "mbx success.\n", __func__, ha->host_no));
 690                         wait = 1;
 691                 }
 692                 spin_lock_irqsave(&pha->hardware_lock, flags);
 693
 694                 break;
 695         }
 696         spin_unlock_irqrestore(&pha->hardware_lock, flags);
 697
 698         /* Wait for the command to be returned. */
 699         if (wait) {
 700                 if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) {
 701                         qla_printk(KERN_ERR, ha,
 702                             "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
 703                             "%x.\n", ha->host_no, id, lun, serial, ret);
 704                         ret = FAILED;
 705                 }
 706         }
 707
 708         qla_printk(KERN_INFO, ha,
 709             "scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n",
 710             ha->host_no, id, lun, wait, serial, ret);
 711
 712         return ret;
 713 }
 714
 715 /**************************************************************************
 716 * qla2x00_eh_wait_for_pending_target_commands
 717 *
 718 * Description:
 719 *    Waits for all the commands to come back from the specified target.
 720 *
 721 * Input:
 722 *    ha - pointer to scsi_qla_host structure.
 723 *    t  - target
 724 * Returns:
 725 *    Either SUCCESS or FAILED.
 726 *
 727 * Note:
 728 **************************************************************************/
 729 static int
 730 qla2x00_eh_wait_for_pending_target_commands(scsi_qla_host_t *ha, unsigned int t)
 731 {
 732         int     cnt;
 733         int     status;
 734         srb_t           *sp;
 735         struct scsi_cmnd *cmd;
 736         unsigned long flags;
 737         scsi_qla_host_t *pha = to_qla_parent(ha);
 738
 739         status = 0;
 740
 741         /*
 742          * Waiting for all commands for the designated target in the active
 743          * array
 744          */
 745         for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
 746                 spin_lock_irqsave(&pha->hardware_lock, flags);
 747                 sp = pha->outstanding_cmds[cnt];
 748                 if (sp) {
 749                         cmd = sp->cmd;
 750                         spin_unlock_irqrestore(&pha->hardware_lock, flags);
 751                         if (cmd->device->id == t &&
 752                             ha->vp_idx == sp->ha->vp_idx) {
 753                                 if (!qla2x00_eh_wait_on_command(ha, cmd)) {
 754                                         status = 1;
 755                                         break;
 756                                 }
 757                         }
 758                 } else {
 759                         spin_unlock_irqrestore(&pha->hardware_lock, flags);
 760                 }
 761         }
 762         return (status);
 763 }
 764
 765
 766 /**************************************************************************
 767 * qla2xxx_eh_device_reset
 768 *
 769 * Description:
 770 *    The device reset function will reset the target and abort any
 771 *    executing commands.
 772 *
 773 *    NOTE: The use of SP is undefined within this context.  Do *NOT*
 774 *          attempt to use this value, even if you determine it is
 775 *          non-null.
 776 *
 777 * Input:
 778 *    cmd = Linux SCSI command packet of the command that cause the
 779 *          bus device reset.
 780 *
 781 * Returns:
 782 *    SUCCESS/FAILURE (defined as macro in scsi.h).
 783 *
 784 **************************************************************************/
 785 static int
 786 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
 787 {
 788         scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
 789         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 790         int ret = FAILED;
 791         unsigned int id, lun;
 792         unsigned long serial;
 793
 794         qla2x00_block_error_handler(cmd);
 795
 796         id = cmd->device->id;
 797         lun = cmd->device->lun;
 798         serial = cmd->serial_number;
 799
 800         if (!fcport)
 801                 return ret;
 802
 803         qla_printk(KERN_INFO, ha,
 804             "scsi(%ld:%d:%d): DEVICE RESET ISSUED.\n", ha->host_no, id, lun);
 805
 806         if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
 807                 goto eh_dev_reset_done;
 808
 809         if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
 810                 if (qla2x00_device_reset(ha, fcport) == 0)
 811                         ret = SUCCESS;
 812
 813 #if defined(LOGOUT_AFTER_DEVICE_RESET)
 814                 if (ret == SUCCESS) {
 815                         if (fcport->flags & FC_FABRIC_DEVICE) {
 816                                 ha->isp_ops.fabric_logout(ha, fcport->loop_id);
 817                                 qla2x00_mark_device_lost(ha, fcport, 0, 0);
 818                         }
 819                 }
 820 #endif
 821         } else {
 822                 DEBUG2(printk(KERN_INFO
 823                     "%s failed: loop not ready\n",__func__));
 824         }
 825
 826         if (ret == FAILED) {
 827                 DEBUG3(printk("%s(%ld): device reset failed\n",
 828                     __func__, ha->host_no));
 829                 qla_printk(KERN_INFO, ha, "%s: device reset failed\n",
 830                     __func__);
 831
 832                 goto eh_dev_reset_done;
 833         }
 834
 835         /* Flush outstanding commands. */
 836         if (qla2x00_eh_wait_for_pending_target_commands(ha, id))
 837                 ret = FAILED;
 838         if (ret == FAILED) {
 839                 DEBUG3(printk("%s(%ld): failed while waiting for commands\n",
 840                     __func__, ha->host_no));
 841                 qla_printk(KERN_INFO, ha,
 842                     "%s: failed while waiting for commands\n", __func__);
 843         } else
 844                 qla_printk(KERN_INFO, ha,
 845                     "scsi(%ld:%d:%d): DEVICE RESET SUCCEEDED.\n", ha->host_no,
 846                     id, lun);
 847  eh_dev_reset_done:
 848         return ret;
 849 }
 850
 851 /**************************************************************************
 852 * qla2x00_eh_wait_for_pending_commands
 853 *
 854 * Description:
 855 *    Waits for all the commands to come back from the specified host.
 856 *
 857 * Input:
 858 *    ha - pointer to scsi_qla_host structure.
 859 *
 860 * Returns:
 861 *    1 : SUCCESS
 862 *    0 : FAILED
 863 *
 864 * Note:
 865 **************************************************************************/
 866 static int
 867 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha)
 868 {
 869         int     cnt;
 870         int     status;
 871         srb_t           *sp;
 872         struct scsi_cmnd *cmd;
 873         unsigned long flags;
 874
 875         status = 1;
 876
 877         /*
 878          * Waiting for all commands for the designated target in the active
 879          * array
 880          */
 881         for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
 882                 spin_lock_irqsave(&ha->hardware_lock, flags);
 883                 sp = ha->outstanding_cmds[cnt];
 884                 if (sp) {
 885                         cmd = sp->cmd;
 886                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 887                         status = qla2x00_eh_wait_on_command(ha, cmd);
 888                         if (status == 0)
 889                                 break;
 890                 }
 891                 else {
 892                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 893                 }
 894         }
 895         return (status);
 896 }
 897
 898
 899 /**************************************************************************
 900 * qla2xxx_eh_bus_reset
 901 *
 902 * Description:
 903 *    The bus reset function will reset the bus and abort any executing
 904 *    commands.
 905 *
 906 * Input:
 907 *    cmd = Linux SCSI command packet of the command that cause the
 908 *          bus reset.
 909 *
 910 * Returns:
 911 *    SUCCESS/FAILURE (defined as macro in scsi.h).
 912 *
 913 **************************************************************************/
 914 static int
 915 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
 916 {
 917         scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
 918         scsi_qla_host_t *pha = to_qla_parent(ha);
 919         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 920         int ret = FAILED;
 921         unsigned int id, lun;
 922         unsigned long serial;
 923
 924         qla2x00_block_error_handler(cmd);
 925
 926         id = cmd->device->id;
 927         lun = cmd->device->lun;
 928         serial = cmd->serial_number;
 929
 930         if (!fcport)
 931                 return ret;
 932
 933         qla_printk(KERN_INFO, ha,
 934             "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun);
 935
 936         if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) {
 937                 DEBUG2(printk("%s failed:board disabled\n",__func__));
 938                 goto eh_bus_reset_done;
 939         }
 940
 941         if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
 942                 if (qla2x00_loop_reset(ha) == QLA_SUCCESS)
 943                         ret = SUCCESS;
 944         }
 945         if (ret == FAILED)
 946                 goto eh_bus_reset_done;
 947
 948         /* Flush outstanding commands. */
 949         if (!qla2x00_eh_wait_for_pending_commands(pha))
 950                 ret = FAILED;
 951
 952 eh_bus_reset_done:
 953         qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
 954             (ret == FAILED) ? "failed" : "succeded");
 955
 956         return ret;
 957 }
 958
 959 /**************************************************************************
 960 * qla2xxx_eh_host_reset
 961 *
 962 * Description:
 963 *    The reset function will reset the Adapter.
 964 *
 965 * Input:
 966 *      cmd = Linux SCSI command packet of the command that cause the
 967 *            adapter reset.
 968 *
 969 * Returns:
 970 *      Either SUCCESS or FAILED.
 971 *
 972 * Note:
 973 **************************************************************************/
 974 static int
 975 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
 976 {
 977         scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
 978         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 979         int ret = FAILED;
 980         unsigned int id, lun;
 981         unsigned long serial;
 982         scsi_qla_host_t *pha = to_qla_parent(ha);
 983
 984         qla2x00_block_error_handler(cmd);
 985
 986         id = cmd->device->id;
 987         lun = cmd->device->lun;
 988         serial = cmd->serial_number;
 989
 990         if (!fcport)
 991                 return ret;
 992
 993         qla_printk(KERN_INFO, ha,
 994             "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun);
 995
 996         if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
 997                 goto eh_host_reset_lock;
 998
 999         /*
1000          * Fixme-may be dpc thread is active and processing
1001          * loop_resync,so wait a while for it to
1002          * be completed and then issue big hammer.Otherwise
1003          * it may cause I/O failure as big hammer marks the
1004          * devices as lost kicking of the port_down_timer
1005          * while dpc is stuck for the mailbox to complete.
1006          */
1007         qla2x00_wait_for_loop_ready(ha);
1008         set_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
1009         if (qla2x00_abort_isp(pha)) {
1010                 clear_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
1011                 /* failed. schedule dpc to try */
1012                 set_bit(ISP_ABORT_NEEDED, &pha->dpc_flags);
1013
1014                 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
1015                         goto eh_host_reset_lock;
1016         }
1017         clear_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
1018
1019         /* Waiting for our command in done_queue to be returned to OS.*/
1020         if (qla2x00_eh_wait_for_pending_commands(pha))
1021                 ret = SUCCESS;
1022
1023         if (ha->parent)
1024                 qla2x00_vp_abort_isp(ha);
1025
1026 eh_host_reset_lock:
1027         qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
1028             (ret == FAILED) ? "failed" : "succeded");
1029
1030         return ret;
1031 }
1032
1033 /*
1034 * qla2x00_loop_reset
1035 *      Issue loop reset.
1036 *
1037 * Input:
1038 *      ha = adapter block pointer.
1039 *
1040 * Returns:
1041 *      0 = success
1042 */
1043 static int
1044 qla2x00_loop_reset(scsi_qla_host_t *ha)
1045 {
1046         int ret;
1047         struct fc_port *fcport;
1048
1049         if (ha->flags.enable_lip_full_login) {
1050                 ret = qla2x00_full_login_lip(ha);
1051                 if (ret != QLA_SUCCESS) {
1052                         DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1053                             "full_login_lip=%d.\n", __func__, ha->host_no,
1054                             ret));
1055                 }
1056                 atomic_set(&ha->loop_state, LOOP_DOWN);
1057                 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
1058                 qla2x00_mark_all_devices_lost(ha, 0);
1059                 qla2x00_wait_for_loop_ready(ha);
1060         }
1061
1062         if (ha->flags.enable_lip_reset) {
1063                 ret = qla2x00_lip_reset(ha);
1064                 if (ret != QLA_SUCCESS) {
1065                         DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1066                             "lip_reset=%d.\n", __func__, ha->host_no, ret));
1067                 }
1068                 qla2x00_wait_for_loop_ready(ha);
1069         }
1070
1071         if (ha->flags.enable_target_reset) {
1072                 list_for_each_entry(fcport, &ha->fcports, list) {
1073                         if (fcport->port_type != FCT_TARGET)
1074                                 continue;
1075
1076                         ret = qla2x00_device_reset(ha, fcport);
1077                         if (ret != QLA_SUCCESS) {
1078                                 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1079                                     "target_reset=%d d_id=%x.\n", __func__,
1080                                     ha->host_no, ret, fcport->d_id.b24));
1081                         }
1082                 }
1083         }
1084
1085         /* Issue marker command only when we are going to start the I/O */
1086         ha->marker_needed = 1;
1087
1088         return QLA_SUCCESS;
1089 }
1090
1091 /*
1092  * qla2x00_device_reset
1093  *      Issue bus device reset message to the target.
1094  *
1095  * Input:
1096  *      ha = adapter block pointer.
1097  *      t = SCSI ID.
1098  *      TARGET_QUEUE_LOCK must be released.
1099  *      ADAPTER_STATE_LOCK must be released.
1100  *
1101  * Context:
1102  *      Kernel context.
1103  */
1104 static int
1105 qla2x00_device_reset(scsi_qla_host_t *ha, fc_port_t *reset_fcport)
1106 {
1107         /* Abort Target command will clear Reservation */
1108         return ha->isp_ops.abort_target(reset_fcport);
1109 }
1110
1111 static int
1112 qla2xxx_slave_alloc(struct scsi_device *sdev)
1113 {
1114         struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1115
1116         if (!rport || fc_remote_port_chkready(rport))
1117                 return -ENXIO;
1118
1119         sdev->hostdata = *(fc_port_t **)rport->dd_data;
1120
1121         return 0;
1122 }
1123
1124 static int
1125 qla2xxx_slave_configure(struct scsi_device *sdev)
1126 {
1127         scsi_qla_host_t *ha = to_qla_host(sdev->host);
1128         struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1129
1130         if (sdev->tagged_supported)
1131                 scsi_activate_tcq(sdev, ha->max_q_depth);
1132         else
1133                 scsi_deactivate_tcq(sdev, ha->max_q_depth);
1134
1135         rport->dev_loss_tmo = ha->port_down_retry_count + 5;
1136
1137         return 0;
1138 }
1139
1140 static void
1141 qla2xxx_slave_destroy(struct scsi_device *sdev)
1142 {
1143         sdev->hostdata = NULL;
1144 }
1145
1146 static int
1147 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1148 {
1149         scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1150         return sdev->queue_depth;
1151 }
1152
1153 static int
1154 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1155 {
1156         if (sdev->tagged_supported) {
1157                 scsi_set_tag_type(sdev, tag_type);
1158                 if (tag_type)
1159                         scsi_activate_tcq(sdev, sdev->queue_depth);
1160                 else
1161                         scsi_deactivate_tcq(sdev, sdev->queue_depth);
1162         } else
1163                 tag_type = 0;
1164
1165         return tag_type;
1166 }
1167
1168 /**
1169  * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1170  * @ha: HA context
1171  *
1172  * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1173  * supported addressing method.
1174  */
1175 static void
1176 qla2x00_config_dma_addressing(scsi_qla_host_t *ha)
1177 {
1178         /* Assume a 32bit DMA mask. */
1179         ha->flags.enable_64bit_addressing = 0;
1180
1181         if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1182                 /* Any upper-dword bits set? */
1183                 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1184                     !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1185                         /* Ok, a 64bit DMA mask is applicable. */
1186                         ha->flags.enable_64bit_addressing = 1;
1187                         ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_64;
1188                         ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_64;
1189                         return;
1190                 }
1191         }
1192
1193         dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1194         pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
1195 }
1196
1197 static inline void
1198 qla2x00_set_isp_flags(scsi_qla_host_t *ha)
1199 {
1200         ha->device_type = DT_EXTENDED_IDS;
1201         switch (ha->pdev->device) {
1202         case PCI_DEVICE_ID_QLOGIC_ISP2100:
1203                 ha->device_type |= DT_ISP2100;
1204                 ha->device_type &= ~DT_EXTENDED_IDS;
1205                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1206                 break;
1207         case PCI_DEVICE_ID_QLOGIC_ISP2200:
1208                 ha->device_type |= DT_ISP2200;
1209                 ha->device_type &= ~DT_EXTENDED_IDS;
1210                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1211                 break;
1212         case PCI_DEVICE_ID_QLOGIC_ISP2300:
1213                 ha->device_type |= DT_ISP2300;
1214                 ha->device_type |= DT_ZIO_SUPPORTED;
1215                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1216                 break;
1217         case PCI_DEVICE_ID_QLOGIC_ISP2312:
1218                 ha->device_type |= DT_ISP2312;
1219                 ha->device_type |= DT_ZIO_SUPPORTED;
1220                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1221                 break;
1222         case PCI_DEVICE_ID_QLOGIC_ISP2322:
1223                 ha->device_type |= DT_ISP2322;
1224                 ha->device_type |= DT_ZIO_SUPPORTED;
1225                 if (ha->pdev->subsystem_vendor == 0x1028 &&
1226                     ha->pdev->subsystem_device == 0x0170)
1227                         ha->device_type |= DT_OEM_001;
1228                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1229                 break;
1230         case PCI_DEVICE_ID_QLOGIC_ISP6312:
1231                 ha->device_type |= DT_ISP6312;
1232                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1233                 break;
1234         case PCI_DEVICE_ID_QLOGIC_ISP6322:
1235                 ha->device_type |= DT_ISP6322;
1236                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1237                 break;
1238         case PCI_DEVICE_ID_QLOGIC_ISP2422:
1239                 ha->device_type |= DT_ISP2422;
1240                 ha->device_type |= DT_ZIO_SUPPORTED;
1241                 ha->device_type |= DT_FWI2;
1242                 ha->device_type |= DT_IIDMA;
1243                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1244                 break;
1245         case PCI_DEVICE_ID_QLOGIC_ISP2432:
1246                 ha->device_type |= DT_ISP2432;
1247                 ha->device_type |= DT_ZIO_SUPPORTED;
1248                 ha->device_type |= DT_FWI2;
1249                 ha->device_type |= DT_IIDMA;
1250                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1251                 break;
1252         case PCI_DEVICE_ID_QLOGIC_ISP5422:
1253                 ha->device_type |= DT_ISP5422;
1254                 ha->device_type |= DT_FWI2;
1255                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1256                 break;
1257         case PCI_DEVICE_ID_QLOGIC_ISP5432:
1258                 ha->device_type |= DT_ISP5432;
1259                 ha->device_type |= DT_FWI2;
1260                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1261                 break;
1262         }
1263 }
1264
1265 static int
1266 qla2x00_iospace_config(scsi_qla_host_t *ha)
1267 {
1268         unsigned long   pio, pio_len, pio_flags;
1269         unsigned long   mmio, mmio_len, mmio_flags;
1270
1271         /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1272         pio = pci_resource_start(ha->pdev, 0);
1273         pio_len = pci_resource_len(ha->pdev, 0);
1274         pio_flags = pci_resource_flags(ha->pdev, 0);
1275         if (pio_flags & IORESOURCE_IO) {
1276                 if (pio_len < MIN_IOBASE_LEN) {
1277                         qla_printk(KERN_WARNING, ha,
1278                             "Invalid PCI I/O region size (%s)...\n",
1279                                 pci_name(ha->pdev));
1280                         pio = 0;
1281                 }
1282         } else {
1283                 qla_printk(KERN_WARNING, ha,
1284                     "region #0 not a PIO resource (%s)...\n",
1285                     pci_name(ha->pdev));
1286                 pio = 0;
1287         }
1288
1289         /* Use MMIO operations for all accesses. */
1290         mmio = pci_resource_start(ha->pdev, 1);
1291         mmio_len = pci_resource_len(ha->pdev, 1);
1292         mmio_flags = pci_resource_flags(ha->pdev, 1);
1293
1294         if (!(mmio_flags & IORESOURCE_MEM)) {
1295                 qla_printk(KERN_ERR, ha,
1296                     "region #0 not an MMIO resource (%s), aborting\n",
1297                     pci_name(ha->pdev));
1298                 goto iospace_error_exit;
1299         }
1300         if (mmio_len < MIN_IOBASE_LEN) {
1301                 qla_printk(KERN_ERR, ha,
1302                     "Invalid PCI mem region size (%s), aborting\n",
1303                         pci_name(ha->pdev));
1304                 goto iospace_error_exit;
1305         }
1306
1307         if (pci_request_regions(ha->pdev, QLA2XXX_DRIVER_NAME)) {
1308                 qla_printk(KERN_WARNING, ha,
1309                     "Failed to reserve PIO/MMIO regions (%s)\n",
1310                     pci_name(ha->pdev));
1311
1312                 goto iospace_error_exit;
1313         }
1314
1315         ha->pio_address = pio;
1316         ha->pio_length = pio_len;
1317         ha->iobase = ioremap(mmio, MIN_IOBASE_LEN);
1318         if (!ha->iobase) {
1319                 qla_printk(KERN_ERR, ha,
1320                     "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1321
1322                 goto iospace_error_exit;
1323         }
1324
1325         return (0);
1326
1327 iospace_error_exit:
1328         return (-ENOMEM);
1329 }
1330
1331 static void
1332 qla2x00_enable_intrs(scsi_qla_host_t *ha)
1333 {
1334         unsigned long flags = 0;
1335         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1336
1337         spin_lock_irqsave(&ha->hardware_lock, flags);
1338         ha->interrupts_on = 1;
1339         /* enable risc and host interrupts */
1340         WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1341         RD_REG_WORD(&reg->ictrl);
1342         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1343
1344 }
1345
1346 static void
1347 qla2x00_disable_intrs(scsi_qla_host_t *ha)
1348 {
1349         unsigned long flags = 0;
1350         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1351
1352         spin_lock_irqsave(&ha->hardware_lock, flags);
1353         ha->interrupts_on = 0;
1354         /* disable risc and host interrupts */
1355         WRT_REG_WORD(&reg->ictrl, 0);
1356         RD_REG_WORD(&reg->ictrl);
1357         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1358 }
1359
1360 static void
1361 qla24xx_enable_intrs(scsi_qla_host_t *ha)
1362 {
1363         unsigned long flags = 0;
1364         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1365
1366         spin_lock_irqsave(&ha->hardware_lock, flags);
1367         ha->interrupts_on = 1;
1368         WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1369         RD_REG_DWORD(&reg->ictrl);
1370         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1371 }
1372
1373 static void
1374 qla24xx_disable_intrs(scsi_qla_host_t *ha)
1375 {
1376         unsigned long flags = 0;
1377         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1378
1379         spin_lock_irqsave(&ha->hardware_lock, flags);
1380         ha->interrupts_on = 0;
1381         WRT_REG_DWORD(&reg->ictrl, 0);
1382         RD_REG_DWORD(&reg->ictrl);
1383         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1384 }
1385
1386 static void
1387 qla2xxx_scan_start(struct Scsi_Host *shost)
1388 {
1389         scsi_qla_host_t *ha = (scsi_qla_host_t *)shost->hostdata;
1390
1391         set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
1392         set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1393         set_bit(RSCN_UPDATE, &ha->dpc_flags);
1394 }
1395
1396 static int
1397 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1398 {
1399         scsi_qla_host_t *ha = (scsi_qla_host_t *)shost->hostdata;
1400
1401         if (!ha->host)
1402                 return 1;
1403         if (time > ha->loop_reset_delay * HZ)
1404                 return 1;
1405
1406         return atomic_read(&ha->loop_state) == LOOP_READY;
1407 }
1408
1409 /*
1410  * PCI driver interface
1411  */
1412 static int __devinit
1413 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1414 {
1415         int     ret = -ENODEV;
1416         device_reg_t __iomem *reg;
1417         struct Scsi_Host *host;
1418         scsi_qla_host_t *ha;
1419         unsigned long   flags = 0;
1420         char pci_info[20];
1421         char fw_str[30];
1422         struct scsi_host_template *sht;
1423
1424         if (pci_enable_device(pdev))
1425                 goto probe_out;
1426
1427         sht = &qla2x00_driver_template;
1428         if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1429             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1430             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1431             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432)
1432                 sht = &qla24xx_driver_template;
1433         host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
1434         if (host == NULL) {
1435                 printk(KERN_WARNING
1436                     "qla2xxx: Couldn't allocate host from scsi layer!\n");
1437                 goto probe_disable_device;
1438         }
1439
1440         /* Clear our data area */
1441         ha = (scsi_qla_host_t *)host->hostdata;
1442         memset(ha, 0, sizeof(scsi_qla_host_t));
1443
1444         ha->pdev = pdev;
1445         ha->host = host;
1446         ha->host_no = host->host_no;
1447         sprintf(ha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, ha->host_no);
1448         ha->parent = NULL;
1449
1450         /* Set ISP-type information. */
1451         qla2x00_set_isp_flags(ha);
1452
1453         /* Configure PCI I/O space */
1454         ret = qla2x00_iospace_config(ha);
1455         if (ret)
1456                 goto probe_failed;
1457
1458         qla_printk(KERN_INFO, ha,
1459             "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1460             ha->iobase);
1461
1462         spin_lock_init(&ha->hardware_lock);
1463
1464         ha->prev_topology = 0;
1465         ha->init_cb_size = sizeof(init_cb_t);
1466         ha->mgmt_svr_loop_id = MANAGEMENT_SERVER + ha->vp_idx;
1467         ha->link_data_rate = PORT_SPEED_UNKNOWN;
1468         ha->optrom_size = OPTROM_SIZE_2300;
1469
1470         ha->max_q_depth = MAX_Q_DEPTH;
1471         if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
1472                 ha->max_q_depth = ql2xmaxqdepth;
1473
1474         /* Assign ISP specific operations. */
1475         ha->isp_ops.pci_config          = qla2100_pci_config;
1476         ha->isp_ops.reset_chip          = qla2x00_reset_chip;
1477         ha->isp_ops.chip_diag           = qla2x00_chip_diag;
1478         ha->isp_ops.config_rings        = qla2x00_config_rings;
1479         ha->isp_ops.reset_adapter       = qla2x00_reset_adapter;
1480         ha->isp_ops.nvram_config        = qla2x00_nvram_config;
1481         ha->isp_ops.update_fw_options   = qla2x00_update_fw_options;
1482         ha->isp_ops.load_risc           = qla2x00_load_risc;
1483         ha->isp_ops.pci_info_str        = qla2x00_pci_info_str;
1484         ha->isp_ops.fw_version_str      = qla2x00_fw_version_str;
1485         ha->isp_ops.intr_handler        = qla2100_intr_handler;
1486         ha->isp_ops.enable_intrs        = qla2x00_enable_intrs;
1487         ha->isp_ops.disable_intrs       = qla2x00_disable_intrs;
1488         ha->isp_ops.abort_command       = qla2x00_abort_command;
1489         ha->isp_ops.abort_target        = qla2x00_abort_target;
1490         ha->isp_ops.fabric_login        = qla2x00_login_fabric;
1491         ha->isp_ops.fabric_logout       = qla2x00_fabric_logout;
1492         ha->isp_ops.calc_req_entries    = qla2x00_calc_iocbs_32;
1493         ha->isp_ops.build_iocbs         = qla2x00_build_scsi_iocbs_32;
1494         ha->isp_ops.prep_ms_iocb        = qla2x00_prep_ms_iocb;
1495         ha->isp_ops.prep_ms_fdmi_iocb   = qla2x00_prep_ms_fdmi_iocb;
1496         ha->isp_ops.read_nvram          = qla2x00_read_nvram_data;
1497         ha->isp_ops.write_nvram         = qla2x00_write_nvram_data;
1498         ha->isp_ops.fw_dump             = qla2100_fw_dump;
1499         ha->isp_ops.read_optrom         = qla2x00_read_optrom_data;
1500         ha->isp_ops.write_optrom        = qla2x00_write_optrom_data;
1501         ha->isp_ops.get_flash_version   = qla2x00_get_flash_version;
1502         if (IS_QLA2100(ha)) {
1503                 host->max_id = MAX_TARGETS_2100;
1504                 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1505                 ha->request_q_length = REQUEST_ENTRY_CNT_2100;
1506                 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1507                 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1508                 host->sg_tablesize = 32;
1509                 ha->gid_list_info_size = 4;
1510         } else if (IS_QLA2200(ha)) {
1511                 host->max_id = MAX_TARGETS_2200;
1512                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1513                 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1514                 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1515                 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1516                 ha->gid_list_info_size = 4;
1517         } else if (IS_QLA23XX(ha)) {
1518                 host->max_id = MAX_TARGETS_2200;
1519                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1520                 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1521                 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1522                 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1523                 ha->isp_ops.pci_config = qla2300_pci_config;
1524                 ha->isp_ops.intr_handler = qla2300_intr_handler;
1525                 ha->isp_ops.fw_dump = qla2300_fw_dump;
1526                 ha->isp_ops.beacon_on = qla2x00_beacon_on;
1527                 ha->isp_ops.beacon_off = qla2x00_beacon_off;
1528                 ha->isp_ops.beacon_blink = qla2x00_beacon_blink;
1529                 ha->gid_list_info_size = 6;
1530                 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1531                         ha->optrom_size = OPTROM_SIZE_2322;
1532         } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
1533                 host->max_id = MAX_TARGETS_2200;
1534                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1535                 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1536                 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1537                 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1538                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1539                 ha->mgmt_svr_loop_id = 10 + ha->vp_idx;
1540                 ha->isp_ops.pci_config = qla24xx_pci_config;
1541                 ha->isp_ops.reset_chip = qla24xx_reset_chip;
1542                 ha->isp_ops.chip_diag = qla24xx_chip_diag;
1543                 ha->isp_ops.config_rings = qla24xx_config_rings;
1544                 ha->isp_ops.reset_adapter = qla24xx_reset_adapter;
1545                 ha->isp_ops.nvram_config = qla24xx_nvram_config;
1546                 ha->isp_ops.update_fw_options = qla24xx_update_fw_options;
1547                 ha->isp_ops.load_risc = qla24xx_load_risc;
1548                 ha->isp_ops.pci_info_str = qla24xx_pci_info_str;
1549                 ha->isp_ops.fw_version_str = qla24xx_fw_version_str;
1550                 ha->isp_ops.intr_handler = qla24xx_intr_handler;
1551                 ha->isp_ops.enable_intrs = qla24xx_enable_intrs;
1552                 ha->isp_ops.disable_intrs = qla24xx_disable_intrs;
1553                 ha->isp_ops.abort_command = qla24xx_abort_command;
1554                 ha->isp_ops.abort_target = qla24xx_abort_target;
1555                 ha->isp_ops.fabric_login = qla24xx_login_fabric;
1556                 ha->isp_ops.fabric_logout = qla24xx_fabric_logout;
1557                 ha->isp_ops.prep_ms_iocb = qla24xx_prep_ms_iocb;
1558                 ha->isp_ops.prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb;
1559                 ha->isp_ops.read_nvram = qla24xx_read_nvram_data;
1560                 ha->isp_ops.write_nvram = qla24xx_write_nvram_data;
1561                 ha->isp_ops.fw_dump = qla24xx_fw_dump;
1562                 ha->isp_ops.read_optrom = qla24xx_read_optrom_data;
1563                 ha->isp_ops.write_optrom = qla24xx_write_optrom_data;
1564                 ha->isp_ops.beacon_on = qla24xx_beacon_on;
1565                 ha->isp_ops.beacon_off = qla24xx_beacon_off;
1566                 ha->isp_ops.beacon_blink = qla24xx_beacon_blink;
1567                 ha->isp_ops.get_flash_version = qla24xx_get_flash_version;
1568                 ha->gid_list_info_size = 8;
1569                 ha->optrom_size = OPTROM_SIZE_24XX;
1570         }
1571         host->can_queue = ha->request_q_length + 128;
1572
1573         /* load the F/W, read paramaters, and init the H/W */
1574         ha->instance = num_hosts;
1575
1576         init_MUTEX(&ha->mbx_cmd_sem);
1577         init_MUTEX(&ha->vport_sem);
1578         init_MUTEX_LOCKED(&ha->mbx_intr_sem);
1579
1580         INIT_LIST_HEAD(&ha->list);
1581         INIT_LIST_HEAD(&ha->fcports);
1582         INIT_LIST_HEAD(&ha->vp_list);
1583
1584         set_bit(0, (unsigned long *) ha->vp_idx_map);
1585
1586         qla2x00_config_dma_addressing(ha);
1587         if (qla2x00_mem_alloc(ha)) {
1588                 qla_printk(KERN_WARNING, ha,
1589                     "[ERROR] Failed to allocate memory for adapter\n");
1590
1591                 ret = -ENOMEM;
1592                 goto probe_failed;
1593         }
1594
1595         if (qla2x00_initialize_adapter(ha)) {
1596                 qla_printk(KERN_WARNING, ha,
1597                     "Failed to initialize adapter\n");
1598
1599                 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1600                     "Adapter flags %x.\n",
1601                     ha->host_no, ha->device_flags));
1602
1603                 ret = -ENODEV;
1604                 goto probe_failed;
1605         }
1606
1607         /*
1608          * Startup the kernel thread for this host adapter
1609          */
1610         ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
1611                         "%s_dpc", ha->host_str);
1612         if (IS_ERR(ha->dpc_thread)) {
1613                 qla_printk(KERN_WARNING, ha,
1614                     "Unable to start DPC thread!\n");
1615                 ret = PTR_ERR(ha->dpc_thread);
1616                 goto probe_failed;
1617         }
1618
1619         host->this_id = 255;
1620         host->cmd_per_lun = 3;
1621         host->unique_id = ha->instance;
1622         host->max_cmd_len = MAX_CMDSZ;
1623         host->max_channel = MAX_BUSES - 1;
1624         host->max_lun = MAX_LUNS;
1625         host->transportt = qla2xxx_transport_template;
1626
1627         ret = qla2x00_request_irqs(ha);
1628         if (ret)
1629                 goto probe_failed;
1630
1631         /* Initialized the timer */
1632         qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL);
1633
1634         DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1635             ha->host_no, ha));
1636
1637         ha->isp_ops.disable_intrs(ha);
1638
1639         spin_lock_irqsave(&ha->hardware_lock, flags);
1640         reg = ha->iobase;
1641         if (IS_FWI2_CAPABLE(ha)) {
1642                 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_HOST_INT);
1643                 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_RISC_INT);
1644         } else {
1645                 WRT_REG_WORD(&reg->isp.semaphore, 0);
1646                 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_RISC_INT);
1647                 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_HOST_INT);
1648
1649                 /* Enable proper parity */
1650                 if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) {
1651                         if (IS_QLA2300(ha))
1652                                 /* SRAM parity */
1653                                 WRT_REG_WORD(&reg->isp.hccr,
1654                                     (HCCR_ENABLE_PARITY + 0x1));
1655                         else
1656                                 /* SRAM, Instruction RAM and GP RAM parity */
1657                                 WRT_REG_WORD(&reg->isp.hccr,
1658                                     (HCCR_ENABLE_PARITY + 0x7));
1659                 }
1660         }
1661         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1662
1663         ha->isp_ops.enable_intrs(ha);
1664
1665         pci_set_drvdata(pdev, ha);
1666
1667         ha->flags.init_done = 1;
1668         ha->flags.online = 1;
1669
1670         num_hosts++;
1671
1672         ret = scsi_add_host(host, &pdev->dev);
1673         if (ret)
1674                 goto probe_failed;
1675
1676         scsi_scan_host(host);
1677
1678         qla2x00_alloc_sysfs_attr(ha);
1679
1680         qla2x00_init_host_attr(ha);
1681
1682         qla_printk(KERN_INFO, ha, "\n"
1683             " QLogic Fibre Channel HBA Driver: %s\n"
1684             "  QLogic %s - %s\n"
1685             "  ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1686             qla2x00_version_str, ha->model_number,
1687             ha->model_desc ? ha->model_desc: "", pdev->device,
1688             ha->isp_ops.pci_info_str(ha, pci_info), pci_name(pdev),
1689             ha->flags.enable_64bit_addressing ? '+': '-', ha->host_no,
1690             ha->isp_ops.fw_version_str(ha, fw_str));
1691
1692         return 0;
1693
1694 probe_failed:
1695         qla2x00_free_device(ha);
1696
1697         scsi_host_put(host);
1698
1699 probe_disable_device:
1700         pci_disable_device(pdev);
1701
1702 probe_out:
1703         return ret;
1704 }
1705
1706 static void __devexit
1707 qla2x00_remove_one(struct pci_dev *pdev)
1708 {
1709         scsi_qla_host_t *ha;
1710
1711         ha = pci_get_drvdata(pdev);
1712
1713         qla2x00_free_sysfs_attr(ha);
1714
1715         fc_remove_host(ha->host);
1716
1717         scsi_remove_host(ha->host);
1718
1719         qla2x00_free_device(ha);
1720
1721         scsi_host_put(ha->host);
1722
1723         pci_disable_device(pdev);
1724         pci_set_drvdata(pdev, NULL);
1725 }
1726
1727 static void
1728 qla2x00_free_device(scsi_qla_host_t *ha)
1729 {
1730         /* Disable timer */
1731         if (ha->timer_active)
1732                 qla2x00_stop_timer(ha);
1733
1734         /* Kill the kernel thread for this host */
1735         if (ha->dpc_thread) {
1736                 struct task_struct *t = ha->dpc_thread;
1737
1738                 /*
1739                  * qla2xxx_wake_dpc checks for ->dpc_thread
1740                  * so we need to zero it out.
1741                  */
1742                 ha->dpc_thread = NULL;
1743                 kthread_stop(t);
1744         }
1745
1746         if (ha->eft)
1747                 qla2x00_trace_control(ha, TC_DISABLE, 0, 0);
1748
1749         ha->flags.online = 0;
1750
1751         /* Stop currently executing firmware. */
1752         qla2x00_try_to_stop_firmware(ha);
1753
1754         /* turn-off interrupts on the card */
1755         if (ha->interrupts_on)
1756                 ha->isp_ops.disable_intrs(ha);
1757
1758         qla2x00_mem_free(ha);
1759
1760         qla2x00_free_irqs(ha);
1761
1762         /* release io space registers  */
1763         if (ha->iobase)
1764                 iounmap(ha->iobase);
1765         pci_release_regions(ha->pdev);
1766 }
1767
1768 static inline void
1769 qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport,
1770     int defer)
1771 {
1772         unsigned long flags;
1773         struct fc_rport *rport;
1774
1775         if (!fcport->rport)
1776                 return;
1777
1778         rport = fcport->rport;
1779         if (defer) {
1780                 spin_lock_irqsave(&fcport->rport_lock, flags);
1781                 fcport->drport = rport;
1782                 fcport->rport = NULL;
1783                 *(fc_port_t **)rport->dd_data = NULL;
1784                 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1785                 set_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags);
1786         } else {
1787                 spin_lock_irqsave(&fcport->rport_lock, flags);
1788                 fcport->rport = NULL;
1789                 *(fc_port_t **)rport->dd_data = NULL;
1790                 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1791                 fc_remote_port_delete(rport);
1792         }
1793 }
1794
1795 /*
1796  * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1797  *
1798  * Input: ha = adapter block pointer.  fcport = port structure pointer.
1799  *
1800  * Return: None.
1801  *
1802  * Context:
1803  */
1804 void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport,
1805     int do_login, int defer)
1806 {
1807         if (atomic_read(&fcport->state) == FCS_ONLINE &&
1808             ha->vp_idx == fcport->vp_idx)
1809                 qla2x00_schedule_rport_del(ha, fcport, defer);
1810
1811         /*
1812          * We may need to retry the login, so don't change the state of the
1813          * port but do the retries.
1814          */
1815         if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
1816                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1817
1818         if (!do_login)
1819                 return;
1820
1821         if (fcport->login_retry == 0) {
1822                 fcport->login_retry = ha->login_retry_count;
1823                 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
1824
1825                 DEBUG(printk("scsi(%ld): Port login retry: "
1826                     "%02x%02x%02x%02x%02x%02x%02x%02x, "
1827                     "id = 0x%04x retry cnt=%d\n",
1828                     ha->host_no,
1829                     fcport->port_name[0],
1830                     fcport->port_name[1],
1831                     fcport->port_name[2],
1832                     fcport->port_name[3],
1833                     fcport->port_name[4],
1834                     fcport->port_name[5],
1835                     fcport->port_name[6],
1836                     fcport->port_name[7],
1837                     fcport->loop_id,
1838                     fcport->login_retry));
1839         }
1840 }
1841
1842 /*
1843  * qla2x00_mark_all_devices_lost
1844  *      Updates fcport state when device goes offline.
1845  *
1846  * Input:
1847  *      ha = adapter block pointer.
1848  *      fcport = port structure pointer.
1849  *
1850  * Return:
1851  *      None.
1852  *
1853  * Context:
1854  */
1855 void
1856 qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer)
1857 {
1858         fc_port_t *fcport;
1859         scsi_qla_host_t *pha = to_qla_parent(ha);
1860
1861         list_for_each_entry(fcport, &pha->fcports, list) {
1862                 if (ha->vp_idx != 0 && ha->vp_idx != fcport->vp_idx)
1863                         continue;
1864                 /*
1865                  * No point in marking the device as lost, if the device is
1866                  * already DEAD.
1867                  */
1868                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
1869                         continue;
1870                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
1871                         if (defer)
1872                                 qla2x00_schedule_rport_del(ha, fcport, defer);
1873                         else if (ha->vp_idx == fcport->vp_idx)
1874                                 qla2x00_schedule_rport_del(ha, fcport, defer);
1875                 }
1876                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1877         }
1878
1879         if (defer)
1880                 qla2xxx_wake_dpc(ha);
1881 }
1882
1883 /*
1884 * qla2x00_mem_alloc
1885 *      Allocates adapter memory.
1886 *
1887 * Returns:
1888 *      0  = success.
1889 *      1  = failure.
1890 */
1891 uint8_t
1892 qla2x00_mem_alloc(scsi_qla_host_t *ha)
1893 {
1894         char    name[16];
1895         uint8_t   status = 1;
1896         int     retry= 10;
1897
1898         do {
1899                 /*
1900                  * This will loop only once if everything goes well, else some
1901                  * number of retries will be performed to get around a kernel
1902                  * bug where available mem is not allocated until after a
1903                  * little delay and a retry.
1904                  */
1905                 ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
1906                     (ha->request_q_length + 1) * sizeof(request_t),
1907                     &ha->request_dma, GFP_KERNEL);
1908                 if (ha->request_ring == NULL) {
1909                         qla_printk(KERN_WARNING, ha,
1910                             "Memory Allocation failed - request_ring\n");
1911
1912                         qla2x00_mem_free(ha);
1913                         msleep(100);
1914
1915                         continue;
1916                 }
1917
1918                 ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
1919                     (ha->response_q_length + 1) * sizeof(response_t),
1920                     &ha->response_dma, GFP_KERNEL);
1921                 if (ha->response_ring == NULL) {
1922                         qla_printk(KERN_WARNING, ha,
1923                             "Memory Allocation failed - response_ring\n");
1924
1925                         qla2x00_mem_free(ha);
1926                         msleep(100);
1927
1928                         continue;
1929                 }
1930
1931                 ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
1932                     &ha->gid_list_dma, GFP_KERNEL);
1933                 if (ha->gid_list == NULL) {
1934                         qla_printk(KERN_WARNING, ha,
1935                             "Memory Allocation failed - gid_list\n");
1936
1937                         qla2x00_mem_free(ha);
1938                         msleep(100);
1939
1940                         continue;
1941                 }
1942
1943                 /* get consistent memory allocated for init control block */
1944                 ha->init_cb = dma_alloc_coherent(&ha->pdev->dev,
1945                     ha->init_cb_size, &ha->init_cb_dma, GFP_KERNEL);
1946                 if (ha->init_cb == NULL) {
1947                         qla_printk(KERN_WARNING, ha,
1948                             "Memory Allocation failed - init_cb\n");
1949
1950                         qla2x00_mem_free(ha);
1951                         msleep(100);
1952
1953                         continue;
1954                 }
1955                 memset(ha->init_cb, 0, ha->init_cb_size);
1956
1957                 snprintf(name, sizeof(name), "%s_%ld", QLA2XXX_DRIVER_NAME,
1958                     ha->host_no);
1959                 ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
1960                     DMA_POOL_SIZE, 8, 0);
1961                 if (ha->s_dma_pool == NULL) {
1962                         qla_printk(KERN_WARNING, ha,
1963                             "Memory Allocation failed - s_dma_pool\n");
1964
1965                         qla2x00_mem_free(ha);
1966                         msleep(100);
1967
1968                         continue;
1969                 }
1970
1971                 if (qla2x00_allocate_sp_pool(ha)) {
1972                         qla_printk(KERN_WARNING, ha,
1973                             "Memory Allocation failed - "
1974                             "qla2x00_allocate_sp_pool()\n");
1975
1976                         qla2x00_mem_free(ha);
1977                         msleep(100);
1978
1979                         continue;
1980                 }
1981
1982                 /* Allocate memory for SNS commands */
1983                 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
1984                         /* Get consistent memory allocated for SNS commands */
1985                         ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
1986                             sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma,
1987                             GFP_KERNEL);
1988                         if (ha->sns_cmd == NULL) {
1989                                 /* error */
1990                                 qla_printk(KERN_WARNING, ha,
1991                                     "Memory Allocation failed - sns_cmd\n");
1992
1993                                 qla2x00_mem_free(ha);
1994                                 msleep(100);
1995
1996                                 continue;
1997                         }
1998                         memset(ha->sns_cmd, 0, sizeof(struct sns_cmd_pkt));
1999                 } else {
2000                         /* Get consistent memory allocated for MS IOCB */
2001                         ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2002                             &ha->ms_iocb_dma);
2003                         if (ha->ms_iocb == NULL) {
2004                                 /* error */
2005                                 qla_printk(KERN_WARNING, ha,
2006                                     "Memory Allocation failed - ms_iocb\n");
2007
2008                                 qla2x00_mem_free(ha);
2009                                 msleep(100);
2010
2011                                 continue;
2012                         }
2013                         memset(ha->ms_iocb, 0, sizeof(ms_iocb_entry_t));
2014
2015                         /*
2016                          * Get consistent memory allocated for CT SNS
2017                          * commands
2018                          */
2019                         ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2020                             sizeof(struct ct_sns_pkt), &ha->ct_sns_dma,
2021                             GFP_KERNEL);
2022                         if (ha->ct_sns == NULL) {
2023                                 /* error */
2024                                 qla_printk(KERN_WARNING, ha,
2025                                     "Memory Allocation failed - ct_sns\n");
2026
2027                                 qla2x00_mem_free(ha);
2028                                 msleep(100);
2029
2030                                 continue;
2031                         }
2032                         memset(ha->ct_sns, 0, sizeof(struct ct_sns_pkt));
2033
2034                         if (IS_FWI2_CAPABLE(ha)) {
2035                                 /*
2036                                  * Get consistent memory allocated for SFP
2037                                  * block.
2038                                  */
2039                                 ha->sfp_data = dma_pool_alloc(ha->s_dma_pool,
2040                                     GFP_KERNEL, &ha->sfp_data_dma);
2041                                 if (ha->sfp_data == NULL) {
2042                                         qla_printk(KERN_WARNING, ha,
2043                                             "Memory Allocation failed - "
2044                                             "sfp_data\n");
2045
2046                                         qla2x00_mem_free(ha);
2047                                         msleep(100);
2048
2049                                         continue;
2050                                 }
2051                                 memset(ha->sfp_data, 0, SFP_BLOCK_SIZE);
2052                         }
2053                 }
2054
2055                 /* Done all allocations without any error. */
2056                 status = 0;
2057
2058         } while (retry-- && status != 0);
2059
2060         if (status) {
2061                 printk(KERN_WARNING
2062                         "%s(): **** FAILED ****\n", __func__);
2063         }
2064
2065         return(status);
2066 }
2067
2068 /*
2069 * qla2x00_mem_free
2070 *      Frees all adapter allocated memory.
2071 *
2072 * Input:
2073 *      ha = adapter block pointer.
2074 */
2075 void
2076 qla2x00_mem_free(scsi_qla_host_t *ha)
2077 {
2078         struct list_head        *fcpl, *fcptemp;
2079         fc_port_t       *fcport;
2080
2081         if (ha == NULL) {
2082                 /* error */
2083                 DEBUG2(printk("%s(): ERROR invalid ha pointer.\n", __func__));
2084                 return;
2085         }
2086
2087         /* free sp pool */
2088         qla2x00_free_sp_pool(ha);
2089
2090         if (ha->fw_dump) {
2091                 if (ha->eft)
2092                         dma_free_coherent(&ha->pdev->dev,
2093                             ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2094                 vfree(ha->fw_dump);
2095         }
2096
2097         if (ha->sns_cmd)
2098                 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2099                     ha->sns_cmd, ha->sns_cmd_dma);
2100
2101         if (ha->ct_sns)
2102                 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2103                     ha->ct_sns, ha->ct_sns_dma);
2104
2105         if (ha->sfp_data)
2106                 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2107
2108         if (ha->ms_iocb)
2109                 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2110
2111         if (ha->s_dma_pool)
2112                 dma_pool_destroy(ha->s_dma_pool);
2113
2114         if (ha->init_cb)
2115                 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
2116                     ha->init_cb, ha->init_cb_dma);
2117
2118         if (ha->gid_list)
2119                 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2120                     ha->gid_list_dma);
2121
2122         if (ha->response_ring)
2123                 dma_free_coherent(&ha->pdev->dev,
2124                     (ha->response_q_length + 1) * sizeof(response_t),
2125                     ha->response_ring, ha->response_dma);
2126
2127         if (ha->request_ring)
2128                 dma_free_coherent(&ha->pdev->dev,
2129                     (ha->request_q_length + 1) * sizeof(request_t),
2130                     ha->request_ring, ha->request_dma);
2131
2132         ha->eft = NULL;
2133         ha->eft_dma = 0;
2134         ha->sns_cmd = NULL;
2135         ha->sns_cmd_dma = 0;
2136         ha->ct_sns = NULL;
2137         ha->ct_sns_dma = 0;
2138         ha->ms_iocb = NULL;
2139         ha->ms_iocb_dma = 0;
2140         ha->init_cb = NULL;
2141         ha->init_cb_dma = 0;
2142
2143         ha->s_dma_pool = NULL;
2144
2145         ha->gid_list = NULL;
2146         ha->gid_list_dma = 0;
2147
2148         ha->response_ring = NULL;
2149         ha->response_dma = 0;
2150         ha->request_ring = NULL;
2151         ha->request_dma = 0;
2152
2153         list_for_each_safe(fcpl, fcptemp, &ha->fcports) {
2154                 fcport = list_entry(fcpl, fc_port_t, list);
2155
2156                 /* fc ports */
2157                 list_del_init(&fcport->list);
2158                 kfree(fcport);
2159         }
2160         INIT_LIST_HEAD(&ha->fcports);
2161
2162         ha->fw_dump = NULL;
2163         ha->fw_dumped = 0;
2164         ha->fw_dump_reading = 0;
2165
2166         vfree(ha->optrom_buffer);
2167 }
2168
2169 /*
2170  * qla2x00_allocate_sp_pool
2171  *       This routine is called during initialization to allocate
2172  *       memory for local srb_t.
2173  *
2174  * Input:
2175  *       ha   = adapter block pointer.
2176  *
2177  * Context:
2178  *      Kernel context.
2179  */
2180 static int
2181 qla2x00_allocate_sp_pool(scsi_qla_host_t *ha)
2182 {
2183         int      rval;
2184
2185         rval = QLA_SUCCESS;
2186         ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
2187         if (ha->srb_mempool == NULL) {
2188                 qla_printk(KERN_INFO, ha, "Unable to allocate SRB mempool.\n");
2189                 rval = QLA_FUNCTION_FAILED;
2190         }
2191         return (rval);
2192 }
2193
2194 /*
2195  *  This routine frees all adapter allocated memory.
2196  *
2197  */
2198 static void
2199 qla2x00_free_sp_pool( scsi_qla_host_t *ha)
2200 {
2201         if (ha->srb_mempool) {
2202                 mempool_destroy(ha->srb_mempool);
2203                 ha->srb_mempool = NULL;
2204         }
2205 }
2206
2207 /**************************************************************************
2208 * qla2x00_do_dpc
2209 *   This kernel thread is a task that is schedule by the interrupt handler
2210 *   to perform the background processing for interrupts.
2211 *
2212 * Notes:
2213 * This task always run in the context of a kernel thread.  It
2214 * is kick-off by the driver's detect code and starts up
2215 * up one per adapter. It immediately goes to sleep and waits for
2216 * some fibre event.  When either the interrupt handler or
2217 * the timer routine detects a event it will one of the task
2218 * bits then wake us up.
2219 **************************************************************************/
2220 static int
2221 qla2x00_do_dpc(void *data)
2222 {
2223         int             rval;
2224         scsi_qla_host_t *ha;
2225         fc_port_t       *fcport;
2226         uint8_t         status;
2227         uint16_t        next_loopid;
2228
2229         ha = (scsi_qla_host_t *)data;
2230
2231         set_user_nice(current, -20);
2232
2233         while (!kthread_should_stop()) {
2234                 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2235
2236                 set_current_state(TASK_INTERRUPTIBLE);
2237                 schedule();
2238                 __set_current_state(TASK_RUNNING);
2239
2240                 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2241
2242                 /* Initialization not yet finished. Don't do anything yet. */
2243                 if (!ha->flags.init_done)
2244                         continue;
2245
2246                 DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no));
2247
2248                 ha->dpc_active = 1;
2249
2250                 if (ha->flags.mbox_busy) {
2251                         ha->dpc_active = 0;
2252                         continue;
2253                 }
2254
2255                 if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2256
2257                         DEBUG(printk("scsi(%ld): dpc: sched "
2258                             "qla2x00_abort_isp ha = %p\n",
2259                             ha->host_no, ha));
2260                         if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2261                             &ha->dpc_flags))) {
2262
2263                                 if (qla2x00_abort_isp(ha)) {
2264                                         /* failed. retry later */
2265                                         set_bit(ISP_ABORT_NEEDED,
2266                                             &ha->dpc_flags);
2267                                 }
2268                                 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2269                         }
2270                         DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2271                             ha->host_no));
2272                 }
2273
2274                 if (test_and_clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags))
2275                         qla2x00_update_fcports(ha);
2276
2277                 if (test_and_clear_bit(LOOP_RESET_NEEDED, &ha->dpc_flags)) {
2278                         DEBUG(printk("scsi(%ld): dpc: sched loop_reset()\n",
2279                             ha->host_no));
2280                         qla2x00_loop_reset(ha);
2281                 }
2282
2283                 if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) &&
2284                     (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) {
2285
2286                         DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2287                             ha->host_no));
2288
2289                         qla2x00_rst_aen(ha);
2290                         clear_bit(RESET_ACTIVE, &ha->dpc_flags);
2291                 }
2292
2293                 /* Retry each device up to login retry count */
2294                 if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2295                     !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) &&
2296                     atomic_read(&ha->loop_state) != LOOP_DOWN) {
2297
2298                         DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2299                             ha->host_no));
2300
2301                         next_loopid = 0;
2302                         list_for_each_entry(fcport, &ha->fcports, list) {
2303                                 /*
2304                                  * If the port is not ONLINE then try to login
2305                                  * to it if we haven't run out of retries.
2306                                  */
2307                                 if (atomic_read(&fcport->state) != FCS_ONLINE &&
2308                                     fcport->login_retry) {
2309
2310                                         fcport->login_retry--;
2311                                         if (fcport->flags & FCF_FABRIC_DEVICE) {
2312                                                 if (fcport->flags &
2313                                                     FCF_TAPE_PRESENT)
2314                                                         ha->isp_ops.fabric_logout(
2315                                                             ha, fcport->loop_id,
2316                                                             fcport->d_id.b.domain,
2317                                                             fcport->d_id.b.area,
2318                                                             fcport->d_id.b.al_pa);
2319                                                 status = qla2x00_fabric_login(
2320                                                     ha, fcport, &next_loopid);
2321                                         } else
2322                                                 status =
2323                                                     qla2x00_local_device_login(
2324                                                         ha, fcport);
2325
2326                                         if (status == QLA_SUCCESS) {
2327                                                 fcport->old_loop_id = fcport->loop_id;
2328
2329                                                 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2330                                                     ha->host_no, fcport->loop_id));
2331
2332                                                 qla2x00_update_fcport(ha,
2333                                                     fcport);
2334                                         } else if (status == 1) {
2335                                                 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
2336                                                 /* retry the login again */
2337                                                 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2338                                                     ha->host_no,
2339                                                     fcport->login_retry, fcport->loop_id));
2340                                         } else {
2341                                                 fcport->login_retry = 0;
2342                                         }
2343                                 }
2344                                 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2345                                         break;
2346                         }
2347                         DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2348                             ha->host_no));
2349                 }
2350
2351                 if ((test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags)) &&
2352                     atomic_read(&ha->loop_state) != LOOP_DOWN) {
2353
2354                         clear_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags);
2355                         DEBUG(printk("scsi(%ld): qla2x00_login_retry()\n",
2356                             ha->host_no));
2357
2358                         set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2359
2360                         DEBUG(printk("scsi(%ld): qla2x00_login_retry - end\n",
2361                             ha->host_no));
2362                 }
2363
2364                 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2365
2366                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2367                             ha->host_no));
2368
2369                         if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2370                             &ha->dpc_flags))) {
2371
2372                                 rval = qla2x00_loop_resync(ha);
2373
2374                                 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
2375                         }
2376
2377                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2378                             ha->host_no));
2379                 }
2380
2381                 if (test_and_clear_bit(FCPORT_RESCAN_NEEDED, &ha->dpc_flags)) {
2382
2383                         DEBUG(printk("scsi(%ld): Rescan flagged fcports...\n",
2384                             ha->host_no));
2385
2386                         qla2x00_rescan_fcports(ha);
2387
2388                         DEBUG(printk("scsi(%ld): Rescan flagged fcports..."
2389                             "end.\n",
2390                             ha->host_no));
2391                 }
2392
2393                 if (!ha->interrupts_on)
2394                         ha->isp_ops.enable_intrs(ha);
2395
2396                 if (test_and_clear_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags))
2397                         ha->isp_ops.beacon_blink(ha);
2398
2399                 qla2x00_do_dpc_all_vps(ha);
2400
2401                 ha->dpc_active = 0;
2402         } /* End of while(1) */
2403
2404         DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no));
2405
2406         /*
2407          * Make sure that nobody tries to wake us up again.
2408          */
2409         ha->dpc_active = 0;
2410
2411         return 0;
2412 }
2413
2414 void
2415 qla2xxx_wake_dpc(scsi_qla_host_t *ha)
2416 {
2417         if (ha->dpc_thread)
2418                 wake_up_process(ha->dpc_thread);
2419 }
2420
2421 /*
2422 *  qla2x00_rst_aen
2423 *      Processes asynchronous reset.
2424 *
2425 * Input:
2426 *      ha  = adapter block pointer.
2427 */
2428 static void
2429 qla2x00_rst_aen(scsi_qla_host_t *ha)
2430 {
2431         if (ha->flags.online && !ha->flags.reset_active &&
2432             !atomic_read(&ha->loop_down_timer) &&
2433             !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
2434                 do {
2435                         clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2436
2437                         /*
2438                          * Issue marker command only when we are going to start
2439                          * the I/O.
2440                          */
2441                         ha->marker_needed = 1;
2442                 } while (!atomic_read(&ha->loop_down_timer) &&
2443                     (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags)));
2444         }
2445 }
2446
2447 static void
2448 qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp)
2449 {
2450         struct scsi_cmnd *cmd = sp->cmd;
2451
2452         if (sp->flags & SRB_DMA_VALID) {
2453                 scsi_dma_unmap(cmd);
2454                 sp->flags &= ~SRB_DMA_VALID;
2455         }
2456         CMD_SP(cmd) = NULL;
2457 }
2458
2459 void
2460 qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp)
2461 {
2462         struct scsi_cmnd *cmd = sp->cmd;
2463
2464         qla2x00_sp_free_dma(ha, sp);
2465
2466         mempool_free(sp, ha->srb_mempool);
2467
2468         cmd->scsi_done(cmd);
2469 }
2470
2471 /**************************************************************************
2472 *   qla2x00_timer
2473 *
2474 * Description:
2475 *   One second timer
2476 *
2477 * Context: Interrupt
2478 ***************************************************************************/
2479 void
2480 qla2x00_timer(scsi_qla_host_t *ha)
2481 {
2482         unsigned long   cpu_flags = 0;
2483         fc_port_t       *fcport;
2484         int             start_dpc = 0;
2485         int             index;
2486         srb_t           *sp;
2487         int             t;
2488         scsi_qla_host_t *pha = to_qla_parent(ha);
2489
2490         /*
2491          * Ports - Port down timer.
2492          *
2493          * Whenever, a port is in the LOST state we start decrementing its port
2494          * down timer every second until it reaches zero. Once  it reaches zero
2495          * the port it marked DEAD.
2496          */
2497         t = 0;
2498         list_for_each_entry(fcport, &ha->fcports, list) {
2499                 if (fcport->port_type != FCT_TARGET)
2500                         continue;
2501
2502                 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2503
2504                         if (atomic_read(&fcport->port_down_timer) == 0)
2505                                 continue;
2506
2507                         if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
2508                                 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
2509
2510                         DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
2511                             "%d remaining\n",
2512                             ha->host_no,
2513                             t, atomic_read(&fcport->port_down_timer)));
2514                 }
2515                 t++;
2516         } /* End of for fcport  */
2517
2518
2519         /* Loop down handler. */
2520         if (atomic_read(&ha->loop_down_timer) > 0 &&
2521             !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) {
2522
2523                 if (atomic_read(&ha->loop_down_timer) ==
2524                     ha->loop_down_abort_time) {
2525
2526                         DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2527                             "queues before time expire\n",
2528                             ha->host_no));
2529
2530                         if (!IS_QLA2100(ha) && ha->link_down_timeout)
2531                                 atomic_set(&ha->loop_state, LOOP_DEAD);
2532
2533                         /* Schedule an ISP abort to return any tape commands. */
2534                         /* NPIV - scan physical port only */
2535                         if (!ha->parent) {
2536                                 spin_lock_irqsave(&ha->hardware_lock,
2537                                     cpu_flags);
2538                                 for (index = 1;
2539                                     index < MAX_OUTSTANDING_COMMANDS;
2540                                     index++) {
2541                                         fc_port_t *sfcp;
2542
2543                                         sp = ha->outstanding_cmds[index];
2544                                         if (!sp)
2545                                                 continue;
2546                                         sfcp = sp->fcport;
2547                                         if (!(sfcp->flags & FCF_TAPE_PRESENT))
2548                                                 continue;
2549
2550                                         set_bit(ISP_ABORT_NEEDED,
2551                                             &ha->dpc_flags);
2552                                         break;
2553                                 }
2554                                 spin_unlock_irqrestore(&ha->hardware_lock,
2555                                     cpu_flags);
2556                         }
2557                         set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags);
2558                         start_dpc++;
2559                 }
2560
2561                 /* if the loop has been down for 4 minutes, reinit adapter */
2562                 if (atomic_dec_and_test(&ha->loop_down_timer) != 0) {
2563                         DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2564                             "restarting queues.\n",
2565                             ha->host_no));
2566
2567                         set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags);
2568                         start_dpc++;
2569
2570                         if (!(ha->device_flags & DFLG_NO_CABLE)) {
2571                                 DEBUG(printk("scsi(%ld): Loop down - "
2572                                     "aborting ISP.\n",
2573                                     ha->host_no));
2574                                 qla_printk(KERN_WARNING, ha,
2575                                     "Loop down - aborting ISP.\n");
2576
2577                                 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2578                         }
2579                 }
2580                 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
2581                     ha->host_no,
2582                     atomic_read(&ha->loop_down_timer)));
2583         }
2584
2585         /* Check if beacon LED needs to be blinked */
2586         if (ha->beacon_blink_led == 1) {
2587                 set_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags);
2588                 start_dpc++;
2589         }
2590
2591         /* Schedule the DPC routine if needed */
2592         if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) ||
2593             test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) ||
2594             test_bit(LOOP_RESET_NEEDED, &ha->dpc_flags) ||
2595             test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags) ||
2596             start_dpc ||
2597             test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags) ||
2598             test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) ||
2599             test_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags) ||
2600             test_bit(VP_DPC_NEEDED, &ha->dpc_flags) ||
2601             test_bit(RELOGIN_NEEDED, &ha->dpc_flags)))
2602                 qla2xxx_wake_dpc(pha);
2603
2604         qla2x00_restart_timer(ha, WATCH_INTERVAL);
2605 }
2606
2607 /* XXX(hch): crude hack to emulate a down_timeout() */
2608 int
2609 qla2x00_down_timeout(struct semaphore *sema, unsigned long timeout)
2610 {
2611         const unsigned int step = 100; /* msecs */
2612         unsigned int iterations = jiffies_to_msecs(timeout)/100;
2613
2614         do {
2615                 if (!down_trylock(sema))
2616                         return 0;
2617                 if (msleep_interruptible(step))
2618                         break;
2619         } while (--iterations > 0);
2620
2621         return -ETIMEDOUT;
2622 }
2623
2624 /* Firmware interface routines. */
2625
2626 #define FW_BLOBS        5
2627 #define FW_ISP21XX      0
2628 #define FW_ISP22XX      1
2629 #define FW_ISP2300      2
2630 #define FW_ISP2322      3
2631 #define FW_ISP24XX      4
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
2639 static DECLARE_MUTEX(qla_fw_lock);
2640
2641 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
2642         { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
2643         { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
2644         { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
2645         { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
2646         { .name = FW_FILE_ISP24XX, },
2647 };
2648
2649 struct fw_blob *
2650 qla2x00_request_firmware(scsi_qla_host_t *ha)
2651 {
2652         struct fw_blob *blob;
2653
2654         blob = NULL;
2655         if (IS_QLA2100(ha)) {
2656                 blob = &qla_fw_blobs[FW_ISP21XX];
2657         } else if (IS_QLA2200(ha)) {
2658                 blob = &qla_fw_blobs[FW_ISP22XX];
2659         } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
2660                 blob = &qla_fw_blobs[FW_ISP2300];
2661         } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
2662                 blob = &qla_fw_blobs[FW_ISP2322];
2663         } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
2664                 blob = &qla_fw_blobs[FW_ISP24XX];
2665         }
2666
2667         down(&qla_fw_lock);
2668         if (blob->fw)
2669                 goto out;
2670
2671         if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
2672                 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
2673                     "(%s).\n", ha->host_no, blob->name));
2674                 blob->fw = NULL;
2675                 blob = NULL;
2676                 goto out;
2677         }
2678
2679 out:
2680         up(&qla_fw_lock);
2681         return blob;
2682 }
2683
2684 static void
2685 qla2x00_release_firmware(void)
2686 {
2687         int idx;
2688
2689         down(&qla_fw_lock);
2690         for (idx = 0; idx < FW_BLOBS; idx++)
2691                 if (qla_fw_blobs[idx].fw)
2692                         release_firmware(qla_fw_blobs[idx].fw);
2693         up(&qla_fw_lock);
2694 }
2695
2696 static struct pci_device_id qla2xxx_pci_tbl[] = {
2697         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
2698         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
2699         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
2700         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
2701         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
2702         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
2703         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
2704         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
2705         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
2706         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
2707         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
2708         { 0 },
2709 };
2710 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
2711
2712 static struct pci_driver qla2xxx_pci_driver = {
2713         .name           = QLA2XXX_DRIVER_NAME,
2714         .driver         = {
2715                 .owner          = THIS_MODULE,
2716         },
2717         .id_table       = qla2xxx_pci_tbl,
2718         .probe          = qla2x00_probe_one,
2719         .remove         = __devexit_p(qla2x00_remove_one),
2720 };
2721
2722 /**
2723  * qla2x00_module_init - Module initialization.
2724  **/
2725 static int __init
2726 qla2x00_module_init(void)
2727 {
2728         int ret = 0;
2729
2730         /* Allocate cache for SRBs. */
2731         srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
2732             SLAB_HWCACHE_ALIGN, NULL, NULL);
2733         if (srb_cachep == NULL) {
2734                 printk(KERN_ERR
2735                     "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2736                 return -ENOMEM;
2737         }
2738
2739         /* Derive version string. */
2740         strcpy(qla2x00_version_str, QLA2XXX_VERSION);
2741         if (ql2xextended_error_logging)
2742                 strcat(qla2x00_version_str, "-debug");
2743
2744         qla2xxx_transport_template =
2745             fc_attach_transport(&qla2xxx_transport_functions);
2746         if (!qla2xxx_transport_template) {
2747                 kmem_cache_destroy(srb_cachep);
2748                 return -ENODEV;
2749         }
2750         qla2xxx_transport_vport_template =
2751             fc_attach_transport(&qla2xxx_transport_vport_functions);
2752         if (!qla2xxx_transport_vport_template) {
2753                 kmem_cache_destroy(srb_cachep);
2754                 fc_release_transport(qla2xxx_transport_template);
2755                 return -ENODEV;
2756         }
2757
2758         printk(KERN_INFO "QLogic Fibre Channel HBA Driver\n");
2759         ret = pci_register_driver(&qla2xxx_pci_driver);
2760         if (ret) {
2761                 kmem_cache_destroy(srb_cachep);
2762                 fc_release_transport(qla2xxx_transport_template);
2763                 fc_release_transport(qla2xxx_transport_vport_template);
2764         }
2765         return ret;
2766 }
2767
2768 /**
2769  * qla2x00_module_exit - Module cleanup.
2770  **/
2771 static void __exit
2772 qla2x00_module_exit(void)
2773 {
2774         pci_unregister_driver(&qla2xxx_pci_driver);
2775         qla2x00_release_firmware();
2776         kmem_cache_destroy(srb_cachep);
2777         fc_release_transport(qla2xxx_transport_template);
2778         fc_release_transport(qla2xxx_transport_vport_template);
2779 }
2780
2781 module_init(qla2x00_module_init);
2782 module_exit(qla2x00_module_exit);
2783
2784 MODULE_AUTHOR("QLogic Corporation");
2785 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
2786 MODULE_LICENSE("GPL");
2787 MODULE_VERSION(QLA2XXX_VERSION);
2788 MODULE_FIRMWARE(FW_FILE_ISP21XX);
2789 MODULE_FIRMWARE(FW_FILE_ISP22XX);
2790 MODULE_FIRMWARE(FW_FILE_ISP2300);
2791 MODULE_FIRMWARE(FW_FILE_ISP2322);
2792 MODULE_FIRMWARE(FW_FILE_ISP24XX);