SAFE public projects git trees. - safe/jmp/linux-2.6/blob - drivers/scsi/qla2xxx/qla_os.c

   1 /*
   2  * QLogic Fibre Channel HBA Driver
   3  * Copyright (c)  2003-2008 QLogic Corporation
   4  *
   5  * See LICENSE.qla2xxx for copyright and licensing details.
   6  */
   7 #include "qla_def.h"
   8
   9 #include <linux/moduleparam.h>
  10 #include <linux/vmalloc.h>
  11 #include <linux/delay.h>
  12 #include <linux/kthread.h>
  13 #include <linux/mutex.h>
  14
  15 #include <scsi/scsi_tcq.h>
  16 #include <scsi/scsicam.h>
  17 #include <scsi/scsi_transport.h>
  18 #include <scsi/scsi_transport_fc.h>
  19
  20 /*
  21  * Driver version
  22  */
  23 char qla2x00_version_str[40];
  24
  25 /*
  26  * SRB allocation cache
  27  */
  28 static struct kmem_cache *srb_cachep;
  29
  30 int ql2xlogintimeout = 20;
  31 module_param(ql2xlogintimeout, int, S_IRUGO|S_IRUSR);
  32 MODULE_PARM_DESC(ql2xlogintimeout,
  33                 "Login timeout value in seconds.");
  34
  35 int qlport_down_retry;
  36 module_param(qlport_down_retry, int, S_IRUGO|S_IRUSR);
  37 MODULE_PARM_DESC(qlport_down_retry,
  38                 "Maximum number of command retries to a port that returns "
  39                 "a PORT-DOWN status.");
  40
  41 int ql2xplogiabsentdevice;
  42 module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
  43 MODULE_PARM_DESC(ql2xplogiabsentdevice,
  44                 "Option to enable PLOGI to devices that are not present after "
  45                 "a Fabric scan.  This is needed for several broken switches. "
  46                 "Default is 0 - no PLOGI. 1 - perfom PLOGI.");
  47
  48 int ql2xloginretrycount = 0;
  49 module_param(ql2xloginretrycount, int, S_IRUGO|S_IRUSR);
  50 MODULE_PARM_DESC(ql2xloginretrycount,
  51                 "Specify an alternate value for the NVRAM login retry count.");
  52
  53 int ql2xallocfwdump = 1;
  54 module_param(ql2xallocfwdump, int, S_IRUGO|S_IRUSR);
  55 MODULE_PARM_DESC(ql2xallocfwdump,
  56                 "Option to enable allocation of memory for a firmware dump "
  57                 "during HBA initialization.  Memory allocation requirements "
  58                 "vary by ISP type.  Default is 1 - allocate memory.");
  59
  60 int ql2xextended_error_logging;
  61 module_param(ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
  62 MODULE_PARM_DESC(ql2xextended_error_logging,
  63                 "Option to enable extended error logging, "
  64                 "Default is 0 - no logging. 1 - log errors.");
  65
  66 static void qla2x00_free_device(scsi_qla_host_t *);
  67
  68 int ql2xfdmienable=1;
  69 module_param(ql2xfdmienable, int, S_IRUGO|S_IRUSR);
  70 MODULE_PARM_DESC(ql2xfdmienable,
  71                 "Enables FDMI registratons "
  72                 "Default is 0 - no FDMI. 1 - perfom FDMI.");
  73
  74 #define MAX_Q_DEPTH    32
  75 static int ql2xmaxqdepth = MAX_Q_DEPTH;
  76 module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
  77 MODULE_PARM_DESC(ql2xmaxqdepth,
  78                 "Maximum queue depth to report for target devices.");
  79
  80 int ql2xqfullrampup = 120;
  81 module_param(ql2xqfullrampup, int, S_IRUGO|S_IWUSR);
  82 MODULE_PARM_DESC(ql2xqfullrampup,
  83                 "Number of seconds to wait to begin to ramp-up the queue "
  84                 "depth for a device after a queue-full condition has been "
  85                 "detected.  Default is 120 seconds.");
  86
  87 int ql2xiidmaenable=1;
  88 module_param(ql2xiidmaenable, int, S_IRUGO|S_IRUSR);
  89 MODULE_PARM_DESC(ql2xiidmaenable,
  90                 "Enables iIDMA settings "
  91                 "Default is 1 - perform iIDMA. 0 - no iIDMA.");
  92
  93 int ql2xmaxqueues = 1;
  94 module_param(ql2xmaxqueues, int, S_IRUGO|S_IRUSR);
  95 MODULE_PARM_DESC(ql2xmaxqueues,
  96                 "Enables MQ settings "
  97                 "Default is 1 for single queue. Set it to number \
  98                         of queues in MQ mode.");
  99 /*
 100  * SCSI host template entry points
 101  */
 102 static int qla2xxx_slave_configure(struct scsi_device * device);
 103 static int qla2xxx_slave_alloc(struct scsi_device *);
 104 static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
 105 static void qla2xxx_scan_start(struct Scsi_Host *);
 106 static void qla2xxx_slave_destroy(struct scsi_device *);
 107 static int qla2xxx_queuecommand(struct scsi_cmnd *cmd,
 108                 void (*fn)(struct scsi_cmnd *));
 109 static int qla2xxx_eh_abort(struct scsi_cmnd *);
 110 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
 111 static int qla2xxx_eh_target_reset(struct scsi_cmnd *);
 112 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
 113 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
 114
 115 static int qla2x00_change_queue_depth(struct scsi_device *, int);
 116 static int qla2x00_change_queue_type(struct scsi_device *, int);
 117
 118 struct scsi_host_template qla2xxx_driver_template = {
 119         .module                 = THIS_MODULE,
 120         .name                   = QLA2XXX_DRIVER_NAME,
 121         .queuecommand           = qla2xxx_queuecommand,
 122
 123         .eh_abort_handler       = qla2xxx_eh_abort,
 124         .eh_device_reset_handler = qla2xxx_eh_device_reset,
 125         .eh_target_reset_handler = qla2xxx_eh_target_reset,
 126         .eh_bus_reset_handler   = qla2xxx_eh_bus_reset,
 127         .eh_host_reset_handler  = qla2xxx_eh_host_reset,
 128
 129         .slave_configure        = qla2xxx_slave_configure,
 130
 131         .slave_alloc            = qla2xxx_slave_alloc,
 132         .slave_destroy          = qla2xxx_slave_destroy,
 133         .scan_finished          = qla2xxx_scan_finished,
 134         .scan_start             = qla2xxx_scan_start,
 135         .change_queue_depth     = qla2x00_change_queue_depth,
 136         .change_queue_type      = qla2x00_change_queue_type,
 137         .this_id                = -1,
 138         .cmd_per_lun            = 3,
 139         .use_clustering         = ENABLE_CLUSTERING,
 140         .sg_tablesize           = SG_ALL,
 141
 142         .max_sectors            = 0xFFFF,
 143         .shost_attrs            = qla2x00_host_attrs,
 144 };
 145
 146 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
 147 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
 148
 149 /* TODO Convert to inlines
 150  *
 151  * Timer routines
 152  */
 153
 154 __inline__ void
 155 qla2x00_start_timer(scsi_qla_host_t *vha, void *func, unsigned long interval)
 156 {
 157         init_timer(&vha->timer);
 158         vha->timer.expires = jiffies + interval * HZ;
 159         vha->timer.data = (unsigned long)vha;
 160         vha->timer.function = (void (*)(unsigned long))func;
 161         add_timer(&vha->timer);
 162         vha->timer_active = 1;
 163 }
 164
 165 static inline void
 166 qla2x00_restart_timer(scsi_qla_host_t *vha, unsigned long interval)
 167 {
 168         mod_timer(&vha->timer, jiffies + interval * HZ);
 169 }
 170
 171 static __inline__ void
 172 qla2x00_stop_timer(scsi_qla_host_t *vha)
 173 {
 174         del_timer_sync(&vha->timer);
 175         vha->timer_active = 0;
 176 }
 177
 178 static int qla2x00_do_dpc(void *data);
 179
 180 static void qla2x00_rst_aen(scsi_qla_host_t *);
 181
 182 static int qla2x00_mem_alloc(struct qla_hw_data *, uint16_t, uint16_t,
 183         struct req_que **, struct rsp_que **);
 184 static void qla2x00_mem_free(struct qla_hw_data *);
 185 static void qla2x00_sp_free_dma(srb_t *);
 186
 187 /* -------------------------------------------------------------------------- */
 188 static int qla2x00_alloc_queues(struct qla_hw_data *ha)
 189 {
 190         ha->req_q_map = kzalloc(sizeof(struct req_que *) * ha->max_queues,
 191                                 GFP_KERNEL);
 192         if (!ha->req_q_map) {
 193                 qla_printk(KERN_WARNING, ha,
 194                         "Unable to allocate memory for request queue ptrs\n");
 195                 goto fail_req_map;
 196         }
 197
 198         ha->rsp_q_map = kzalloc(sizeof(struct rsp_que *) * ha->max_queues,
 199                                 GFP_KERNEL);
 200         if (!ha->rsp_q_map) {
 201                 qla_printk(KERN_WARNING, ha,
 202                         "Unable to allocate memory for response queue ptrs\n");
 203                 goto fail_rsp_map;
 204         }
 205         set_bit(0, ha->rsp_qid_map);
 206         set_bit(0, ha->req_qid_map);
 207         return 1;
 208
 209 fail_rsp_map:
 210         kfree(ha->req_q_map);
 211         ha->req_q_map = NULL;
 212 fail_req_map:
 213         return -ENOMEM;
 214 }
 215
 216 static void qla2x00_free_que(struct qla_hw_data *ha, struct req_que *req,
 217         struct rsp_que *rsp)
 218 {
 219         if (rsp && rsp->ring)
 220                 dma_free_coherent(&ha->pdev->dev,
 221                 (rsp->length + 1) * sizeof(response_t),
 222                 rsp->ring, rsp->dma);
 223
 224         kfree(rsp);
 225         rsp = NULL;
 226         if (req && req->ring)
 227                 dma_free_coherent(&ha->pdev->dev,
 228                 (req->length + 1) * sizeof(request_t),
 229                 req->ring, req->dma);
 230
 231         kfree(req);
 232         req = NULL;
 233 }
 234
 235 static void qla2x00_free_queues(struct qla_hw_data *ha)
 236 {
 237         struct req_que *req;
 238         struct rsp_que *rsp;
 239         int cnt;
 240
 241         for (cnt = 0; cnt < ha->max_queues; cnt++) {
 242                 rsp = ha->rsp_q_map[cnt];
 243                 req = ha->req_q_map[cnt];
 244                 qla2x00_free_que(ha, req, rsp);
 245         }
 246         kfree(ha->rsp_q_map);
 247         ha->rsp_q_map = NULL;
 248
 249         kfree(ha->req_q_map);
 250         ha->req_q_map = NULL;
 251 }
 252
 253 static char *
 254 qla2x00_pci_info_str(struct scsi_qla_host *vha, char *str)
 255 {
 256         struct qla_hw_data *ha = vha->hw;
 257         static char *pci_bus_modes[] = {
 258                 "33", "66", "100", "133",
 259         };
 260         uint16_t pci_bus;
 261
 262         strcpy(str, "PCI");
 263         pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
 264         if (pci_bus) {
 265                 strcat(str, "-X (");
 266                 strcat(str, pci_bus_modes[pci_bus]);
 267         } else {
 268                 pci_bus = (ha->pci_attr & BIT_8) >> 8;
 269                 strcat(str, " (");
 270                 strcat(str, pci_bus_modes[pci_bus]);
 271         }
 272         strcat(str, " MHz)");
 273
 274         return (str);
 275 }
 276
 277 static char *
 278 qla24xx_pci_info_str(struct scsi_qla_host *vha, char *str)
 279 {
 280         static char *pci_bus_modes[] = { "33", "66", "100", "133", };
 281         struct qla_hw_data *ha = vha->hw;
 282         uint32_t pci_bus;
 283         int pcie_reg;
 284
 285         pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
 286         if (pcie_reg) {
 287                 char lwstr[6];
 288                 uint16_t pcie_lstat, lspeed, lwidth;
 289
 290                 pcie_reg += 0x12;
 291                 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
 292                 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
 293                 lwidth = (pcie_lstat &
 294                     (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
 295
 296                 strcpy(str, "PCIe (");
 297                 if (lspeed == 1)
 298                         strcat(str, "2.5GT/s ");
 299                 else if (lspeed == 2)
 300                         strcat(str, "5.0GT/s ");
 301                 else
 302                         strcat(str, "<unknown> ");
 303                 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
 304                 strcat(str, lwstr);
 305
 306                 return str;
 307         }
 308
 309         strcpy(str, "PCI");
 310         pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
 311         if (pci_bus == 0 || pci_bus == 8) {
 312                 strcat(str, " (");
 313                 strcat(str, pci_bus_modes[pci_bus >> 3]);
 314         } else {
 315                 strcat(str, "-X ");
 316                 if (pci_bus & BIT_2)
 317                         strcat(str, "Mode 2");
 318                 else
 319                         strcat(str, "Mode 1");
 320                 strcat(str, " (");
 321                 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
 322         }
 323         strcat(str, " MHz)");
 324
 325         return str;
 326 }
 327
 328 static char *
 329 qla2x00_fw_version_str(struct scsi_qla_host *vha, char *str)
 330 {
 331         char un_str[10];
 332         struct qla_hw_data *ha = vha->hw;
 333
 334         sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
 335             ha->fw_minor_version,
 336             ha->fw_subminor_version);
 337
 338         if (ha->fw_attributes & BIT_9) {
 339                 strcat(str, "FLX");
 340                 return (str);
 341         }
 342
 343         switch (ha->fw_attributes & 0xFF) {
 344         case 0x7:
 345                 strcat(str, "EF");
 346                 break;
 347         case 0x17:
 348                 strcat(str, "TP");
 349                 break;
 350         case 0x37:
 351                 strcat(str, "IP");
 352                 break;
 353         case 0x77:
 354                 strcat(str, "VI");
 355                 break;
 356         default:
 357                 sprintf(un_str, "(%x)", ha->fw_attributes);
 358                 strcat(str, un_str);
 359                 break;
 360         }
 361         if (ha->fw_attributes & 0x100)
 362                 strcat(str, "X");
 363
 364         return (str);
 365 }
 366
 367 static char *
 368 qla24xx_fw_version_str(struct scsi_qla_host *vha, char *str)
 369 {
 370         struct qla_hw_data *ha = vha->hw;
 371
 372         sprintf(str, "%d.%02d.%02d (%x)", ha->fw_major_version,
 373             ha->fw_minor_version, ha->fw_subminor_version, ha->fw_attributes);
 374         return str;
 375 }
 376
 377 static inline srb_t *
 378 qla2x00_get_new_sp(scsi_qla_host_t *vha, fc_port_t *fcport,
 379     struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 380 {
 381         srb_t *sp;
 382         struct qla_hw_data *ha = vha->hw;
 383
 384         sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
 385         if (!sp)
 386                 return sp;
 387
 388         sp->fcport = fcport;
 389         sp->cmd = cmd;
 390         sp->que = ha->req_q_map[0];
 391         sp->flags = 0;
 392         CMD_SP(cmd) = (void *)sp;
 393         cmd->scsi_done = done;
 394
 395         return sp;
 396 }
 397
 398 static int
 399 qla2xxx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 400 {
 401         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 402         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 403         struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
 404         struct qla_hw_data *ha = vha->hw;
 405         struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
 406         srb_t *sp;
 407         int rval;
 408
 409         if (unlikely(pci_channel_offline(ha->pdev))) {
 410                 if (ha->pdev->error_state == pci_channel_io_frozen)
 411                         cmd->result = DID_REQUEUE << 16;
 412                 else
 413                         cmd->result = DID_NO_CONNECT << 16;
 414                 goto qc24_fail_command;
 415         }
 416
 417         rval = fc_remote_port_chkready(rport);
 418         if (rval) {
 419                 cmd->result = rval;
 420                 goto qc24_fail_command;
 421         }
 422
 423         /* Close window on fcport/rport state-transitioning. */
 424         if (fcport->drport)
 425                 goto qc24_target_busy;
 426
 427         if (atomic_read(&fcport->state) != FCS_ONLINE) {
 428                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
 429                     atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
 430                         cmd->result = DID_NO_CONNECT << 16;
 431                         goto qc24_fail_command;
 432                 }
 433                 goto qc24_target_busy;
 434         }
 435
 436         spin_unlock_irq(vha->host->host_lock);
 437
 438         sp = qla2x00_get_new_sp(base_vha, fcport, cmd, done);
 439         if (!sp)
 440                 goto qc24_host_busy_lock;
 441
 442         rval = ha->isp_ops->start_scsi(sp);
 443         if (rval != QLA_SUCCESS)
 444                 goto qc24_host_busy_free_sp;
 445
 446         spin_lock_irq(vha->host->host_lock);
 447
 448         return 0;
 449
 450 qc24_host_busy_free_sp:
 451         qla2x00_sp_free_dma(sp);
 452         mempool_free(sp, ha->srb_mempool);
 453
 454 qc24_host_busy_lock:
 455         spin_lock_irq(vha->host->host_lock);
 456         return SCSI_MLQUEUE_HOST_BUSY;
 457
 458 qc24_target_busy:
 459         return SCSI_MLQUEUE_TARGET_BUSY;
 460
 461 qc24_fail_command:
 462         done(cmd);
 463
 464         return 0;
 465 }
 466
 467
 468 /*
 469  * qla2x00_eh_wait_on_command
 470  *    Waits for the command to be returned by the Firmware for some
 471  *    max time.
 472  *
 473  * Input:
 474  *    cmd = Scsi Command to wait on.
 475  *
 476  * Return:
 477  *    Not Found : 0
 478  *    Found : 1
 479  */
 480 static int
 481 qla2x00_eh_wait_on_command(struct scsi_cmnd *cmd)
 482 {
 483 #define ABORT_POLLING_PERIOD    1000
 484 #define ABORT_WAIT_ITER         ((10 * 1000) / (ABORT_POLLING_PERIOD))
 485         unsigned long wait_iter = ABORT_WAIT_ITER;
 486         int ret = QLA_SUCCESS;
 487
 488         while (CMD_SP(cmd)) {
 489                 msleep(ABORT_POLLING_PERIOD);
 490
 491                 if (--wait_iter)
 492                         break;
 493         }
 494         if (CMD_SP(cmd))
 495                 ret = QLA_FUNCTION_FAILED;
 496
 497         return ret;
 498 }
 499
 500 /*
 501  * qla2x00_wait_for_hba_online
 502  *    Wait till the HBA is online after going through
 503  *    <= MAX_RETRIES_OF_ISP_ABORT  or
 504  *    finally HBA is disabled ie marked offline
 505  *
 506  * Input:
 507  *     ha - pointer to host adapter structure
 508  *
 509  * Note:
 510  *    Does context switching-Release SPIN_LOCK
 511  *    (if any) before calling this routine.
 512  *
 513  * Return:
 514  *    Success (Adapter is online) : 0
 515  *    Failed  (Adapter is offline/disabled) : 1
 516  */
 517 int
 518 qla2x00_wait_for_hba_online(scsi_qla_host_t *vha)
 519 {
 520         int             return_status;
 521         unsigned long   wait_online;
 522         struct qla_hw_data *ha = vha->hw;
 523         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 524
 525         wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 526         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 527             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 528             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 529             ha->dpc_active) && time_before(jiffies, wait_online)) {
 530
 531                 msleep(1000);
 532         }
 533         if (base_vha->flags.online)
 534                 return_status = QLA_SUCCESS;
 535         else
 536                 return_status = QLA_FUNCTION_FAILED;
 537
 538         return (return_status);
 539 }
 540
 541 int
 542 qla2x00_wait_for_chip_reset(scsi_qla_host_t *vha)
 543 {
 544         int             return_status;
 545         unsigned long   wait_reset;
 546         struct qla_hw_data *ha = vha->hw;
 547         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 548
 549         wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 550         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 551             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 552             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 553             ha->dpc_active) && time_before(jiffies, wait_reset)) {
 554
 555                 msleep(1000);
 556
 557                 if (!test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags) &&
 558                     ha->flags.chip_reset_done)
 559                         break;
 560         }
 561         if (ha->flags.chip_reset_done)
 562                 return_status = QLA_SUCCESS;
 563         else
 564                 return_status = QLA_FUNCTION_FAILED;
 565
 566         return return_status;
 567 }
 568
 569 /*
 570  * qla2x00_wait_for_loop_ready
 571  *    Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
 572  *    to be in LOOP_READY state.
 573  * Input:
 574  *     ha - pointer to host adapter structure
 575  *
 576  * Note:
 577  *    Does context switching-Release SPIN_LOCK
 578  *    (if any) before calling this routine.
 579  *
 580  *
 581  * Return:
 582  *    Success (LOOP_READY) : 0
 583  *    Failed  (LOOP_NOT_READY) : 1
 584  */
 585 static inline int
 586 qla2x00_wait_for_loop_ready(scsi_qla_host_t *vha)
 587 {
 588         int      return_status = QLA_SUCCESS;
 589         unsigned long loop_timeout ;
 590         struct qla_hw_data *ha = vha->hw;
 591         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 592
 593         /* wait for 5 min at the max for loop to be ready */
 594         loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 595
 596         while ((!atomic_read(&base_vha->loop_down_timer) &&
 597             atomic_read(&base_vha->loop_state) == LOOP_DOWN) ||
 598             atomic_read(&base_vha->loop_state) != LOOP_READY) {
 599                 if (atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
 600                         return_status = QLA_FUNCTION_FAILED;
 601                         break;
 602                 }
 603                 msleep(1000);
 604                 if (time_after_eq(jiffies, loop_timeout)) {
 605                         return_status = QLA_FUNCTION_FAILED;
 606                         break;
 607                 }
 608         }
 609         return (return_status);
 610 }
 611
 612 void
 613 qla2x00_abort_fcport_cmds(fc_port_t *fcport)
 614 {
 615         int cnt, que, id;
 616         unsigned long flags;
 617         srb_t *sp;
 618         scsi_qla_host_t *vha = fcport->vha;
 619         struct qla_hw_data *ha = vha->hw;
 620         struct req_que *req;
 621
 622         spin_lock_irqsave(&ha->hardware_lock, flags);
 623         for (que = 0; que < QLA_MAX_HOST_QUES; que++) {
 624                 id = vha->req_ques[que];
 625                 req = ha->req_q_map[id];
 626                 if (!req)
 627                         continue;
 628                 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
 629                         sp = req->outstanding_cmds[cnt];
 630                         if (!sp)
 631                                 continue;
 632                         if (sp->fcport != fcport)
 633                                 continue;
 634
 635                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 636                         if (ha->isp_ops->abort_command(vha, sp, req)) {
 637                                 DEBUG2(qla_printk(KERN_WARNING, ha,
 638                                 "Abort failed --  %lx\n",
 639                                 sp->cmd->serial_number));
 640                         } else {
 641                                 if (qla2x00_eh_wait_on_command(sp->cmd) !=
 642                                         QLA_SUCCESS)
 643                                         DEBUG2(qla_printk(KERN_WARNING, ha,
 644                                         "Abort failed while waiting --  %lx\n",
 645                                         sp->cmd->serial_number));
 646                         }
 647                         spin_lock_irqsave(&ha->hardware_lock, flags);
 648                 }
 649         }
 650         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 651 }
 652
 653 static void
 654 qla2x00_block_error_handler(struct scsi_cmnd *cmnd)
 655 {
 656         struct Scsi_Host *shost = cmnd->device->host;
 657         struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
 658         unsigned long flags;
 659
 660         spin_lock_irqsave(shost->host_lock, flags);
 661         while (rport->port_state == FC_PORTSTATE_BLOCKED) {
 662                 spin_unlock_irqrestore(shost->host_lock, flags);
 663                 msleep(1000);
 664                 spin_lock_irqsave(shost->host_lock, flags);
 665         }
 666         spin_unlock_irqrestore(shost->host_lock, flags);
 667         return;
 668 }
 669
 670 /**************************************************************************
 671 * qla2xxx_eh_abort
 672 *
 673 * Description:
 674 *    The abort function will abort the specified command.
 675 *
 676 * Input:
 677 *    cmd = Linux SCSI command packet to be aborted.
 678 *
 679 * Returns:
 680 *    Either SUCCESS or FAILED.
 681 *
 682 * Note:
 683 *    Only return FAILED if command not returned by firmware.
 684 **************************************************************************/
 685 static int
 686 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
 687 {
 688         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 689         srb_t *sp;
 690         int ret, i;
 691         unsigned int id, lun;
 692         unsigned long serial;
 693         unsigned long flags;
 694         int wait = 0;
 695         struct qla_hw_data *ha = vha->hw;
 696         struct req_que *req;
 697         srb_t *spt;
 698
 699         qla2x00_block_error_handler(cmd);
 700
 701         if (!CMD_SP(cmd))
 702                 return SUCCESS;
 703
 704         ret = SUCCESS;
 705
 706         id = cmd->device->id;
 707         lun = cmd->device->lun;
 708         serial = cmd->serial_number;
 709         spt = (srb_t *) CMD_SP(cmd);
 710         if (!spt)
 711                 return SUCCESS;
 712         req = spt->que;
 713
 714         /* Check active list for command command. */
 715         spin_lock_irqsave(&ha->hardware_lock, flags);
 716         for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
 717                 sp = req->outstanding_cmds[i];
 718
 719                 if (sp == NULL)
 720                         continue;
 721
 722                 if (sp->cmd != cmd)
 723                         continue;
 724
 725                 DEBUG2(printk("%s(%ld): aborting sp %p from RISC."
 726                 " pid=%ld.\n", __func__, vha->host_no, sp, serial));
 727
 728                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 729                 if (ha->isp_ops->abort_command(vha, sp, req)) {
 730                         DEBUG2(printk("%s(%ld): abort_command "
 731                         "mbx failed.\n", __func__, vha->host_no));
 732                         ret = FAILED;
 733                 } else {
 734                         DEBUG3(printk("%s(%ld): abort_command "
 735                         "mbx success.\n", __func__, vha->host_no));
 736                         wait = 1;
 737                 }
 738                 spin_lock_irqsave(&ha->hardware_lock, flags);
 739                 break;
 740         }
 741         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 742
 743         /* Wait for the command to be returned. */
 744         if (wait) {
 745                 if (qla2x00_eh_wait_on_command(cmd) != QLA_SUCCESS) {
 746                         qla_printk(KERN_ERR, ha,
 747                             "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
 748                             "%x.\n", vha->host_no, id, lun, serial, ret);
 749                         ret = FAILED;
 750                 }
 751         }
 752
 753         qla_printk(KERN_INFO, ha,
 754             "scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n",
 755             vha->host_no, id, lun, wait, serial, ret);
 756
 757         return ret;
 758 }
 759
 760 enum nexus_wait_type {
 761         WAIT_HOST = 0,
 762         WAIT_TARGET,
 763         WAIT_LUN,
 764 };
 765
 766 static int
 767 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *vha, unsigned int t,
 768         unsigned int l, srb_t *sp, enum nexus_wait_type type)
 769 {
 770         int cnt, match, status;
 771         unsigned long flags;
 772         struct qla_hw_data *ha = vha->hw;
 773         struct req_que *req;
 774
 775         status = QLA_SUCCESS;
 776         if (!sp)
 777                 return status;
 778
 779         spin_lock_irqsave(&ha->hardware_lock, flags);
 780         req = sp->que;
 781         for (cnt = 1; status == QLA_SUCCESS &&
 782                 cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
 783                 sp = req->outstanding_cmds[cnt];
 784                 if (!sp)
 785                         continue;
 786
 787                 if (vha->vp_idx != sp->fcport->vha->vp_idx)
 788                         continue;
 789                 match = 0;
 790                 switch (type) {
 791                 case WAIT_HOST:
 792                         match = 1;
 793                         break;
 794                 case WAIT_TARGET:
 795                         match = sp->cmd->device->id == t;
 796                         break;
 797                 case WAIT_LUN:
 798                         match = (sp->cmd->device->id == t &&
 799                                 sp->cmd->device->lun == l);
 800                         break;
 801                 }
 802                 if (!match)
 803                         continue;
 804
 805                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 806                 status = qla2x00_eh_wait_on_command(sp->cmd);
 807                 spin_lock_irqsave(&ha->hardware_lock, flags);
 808         }
 809         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 810
 811         return status;
 812 }
 813
 814 static char *reset_errors[] = {
 815         "HBA not online",
 816         "HBA not ready",
 817         "Task management failed",
 818         "Waiting for command completions",
 819 };
 820
 821 static int
 822 __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
 823     struct scsi_cmnd *cmd, int (*do_reset)(struct fc_port *, unsigned int))
 824 {
 825         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 826         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 827         int err;
 828
 829         qla2x00_block_error_handler(cmd);
 830
 831         if (!fcport)
 832                 return FAILED;
 833
 834         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET ISSUED.\n",
 835             vha->host_no, cmd->device->id, cmd->device->lun, name);
 836
 837         err = 0;
 838         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
 839                 goto eh_reset_failed;
 840         err = 1;
 841         if (qla2x00_wait_for_loop_ready(vha) != QLA_SUCCESS)
 842                 goto eh_reset_failed;
 843         err = 2;
 844         if (do_reset(fcport, cmd->device->lun) != QLA_SUCCESS)
 845                 goto eh_reset_failed;
 846         err = 3;
 847         if (qla2x00_eh_wait_for_pending_commands(vha, cmd->device->id,
 848             cmd->device->lun, (srb_t *) CMD_SP(cmd), type) != QLA_SUCCESS)
 849                 goto eh_reset_failed;
 850
 851         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET SUCCEEDED.\n",
 852             vha->host_no, cmd->device->id, cmd->device->lun, name);
 853
 854         return SUCCESS;
 855
 856  eh_reset_failed:
 857         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET FAILED: %s.\n"
 858             , vha->host_no, cmd->device->id, cmd->device->lun, name,
 859             reset_errors[err]);
 860         return FAILED;
 861 }
 862
 863 static int
 864 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
 865 {
 866         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 867         struct qla_hw_data *ha = vha->hw;
 868
 869         return __qla2xxx_eh_generic_reset("DEVICE", WAIT_LUN, cmd,
 870             ha->isp_ops->lun_reset);
 871 }
 872
 873 static int
 874 qla2xxx_eh_target_reset(struct scsi_cmnd *cmd)
 875 {
 876         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 877         struct qla_hw_data *ha = vha->hw;
 878
 879         return __qla2xxx_eh_generic_reset("TARGET", WAIT_TARGET, cmd,
 880             ha->isp_ops->target_reset);
 881 }
 882
 883 /**************************************************************************
 884 * qla2xxx_eh_bus_reset
 885 *
 886 * Description:
 887 *    The bus reset function will reset the bus and abort any executing
 888 *    commands.
 889 *
 890 * Input:
 891 *    cmd = Linux SCSI command packet of the command that cause the
 892 *          bus reset.
 893 *
 894 * Returns:
 895 *    SUCCESS/FAILURE (defined as macro in scsi.h).
 896 *
 897 **************************************************************************/
 898 static int
 899 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
 900 {
 901         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 902         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 903         int ret = FAILED;
 904         unsigned int id, lun;
 905         unsigned long serial;
 906         srb_t *sp = (srb_t *) CMD_SP(cmd);
 907
 908         qla2x00_block_error_handler(cmd);
 909
 910         id = cmd->device->id;
 911         lun = cmd->device->lun;
 912         serial = cmd->serial_number;
 913
 914         if (!fcport)
 915                 return ret;
 916
 917         qla_printk(KERN_INFO, vha->hw,
 918             "scsi(%ld:%d:%d): BUS RESET ISSUED.\n", vha->host_no, id, lun);
 919
 920         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
 921                 DEBUG2(printk("%s failed:board disabled\n",__func__));
 922                 goto eh_bus_reset_done;
 923         }
 924
 925         if (qla2x00_wait_for_loop_ready(vha) == QLA_SUCCESS) {
 926                 if (qla2x00_loop_reset(vha) == QLA_SUCCESS)
 927                         ret = SUCCESS;
 928         }
 929         if (ret == FAILED)
 930                 goto eh_bus_reset_done;
 931
 932         /* Flush outstanding commands. */
 933         if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, sp, WAIT_HOST) !=
 934             QLA_SUCCESS)
 935                 ret = FAILED;
 936
 937 eh_bus_reset_done:
 938         qla_printk(KERN_INFO, vha->hw, "%s: reset %s\n", __func__,
 939             (ret == FAILED) ? "failed" : "succeded");
 940
 941         return ret;
 942 }
 943
 944 /**************************************************************************
 945 * qla2xxx_eh_host_reset
 946 *
 947 * Description:
 948 *    The reset function will reset the Adapter.
 949 *
 950 * Input:
 951 *      cmd = Linux SCSI command packet of the command that cause the
 952 *            adapter reset.
 953 *
 954 * Returns:
 955 *      Either SUCCESS or FAILED.
 956 *
 957 * Note:
 958 **************************************************************************/
 959 static int
 960 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
 961 {
 962         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 963         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 964         struct qla_hw_data *ha = vha->hw;
 965         int ret = FAILED;
 966         unsigned int id, lun;
 967         unsigned long serial;
 968         srb_t *sp = (srb_t *) CMD_SP(cmd);
 969         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 970
 971         qla2x00_block_error_handler(cmd);
 972
 973         id = cmd->device->id;
 974         lun = cmd->device->lun;
 975         serial = cmd->serial_number;
 976
 977         if (!fcport)
 978                 return ret;
 979
 980         qla_printk(KERN_INFO, ha,
 981             "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", vha->host_no, id, lun);
 982
 983         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
 984                 goto eh_host_reset_lock;
 985
 986         /*
 987          * Fixme-may be dpc thread is active and processing
 988          * loop_resync,so wait a while for it to
 989          * be completed and then issue big hammer.Otherwise
 990          * it may cause I/O failure as big hammer marks the
 991          * devices as lost kicking of the port_down_timer
 992          * while dpc is stuck for the mailbox to complete.
 993          */
 994         qla2x00_wait_for_loop_ready(vha);
 995         if (vha != base_vha) {
 996                 if (qla2x00_vp_abort_isp(vha))
 997                         goto eh_host_reset_lock;
 998         } else {
 999                 set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1000                 if (qla2x00_abort_isp(base_vha)) {
1001                         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1002                         /* failed. schedule dpc to try */
1003                         set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags);
1004
1005                         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
1006                                 goto eh_host_reset_lock;
1007                 }
1008                 clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1009         }
1010
1011         /* Waiting for command to be returned to OS.*/
1012         if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, sp, WAIT_HOST) ==
1013                 QLA_SUCCESS)
1014                 ret = SUCCESS;
1015
1016 eh_host_reset_lock:
1017         qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
1018             (ret == FAILED) ? "failed" : "succeded");
1019
1020         return ret;
1021 }
1022
1023 /*
1024 * qla2x00_loop_reset
1025 *      Issue loop reset.
1026 *
1027 * Input:
1028 *      ha = adapter block pointer.
1029 *
1030 * Returns:
1031 *      0 = success
1032 */
1033 int
1034 qla2x00_loop_reset(scsi_qla_host_t *vha)
1035 {
1036         int ret;
1037         struct fc_port *fcport;
1038         struct qla_hw_data *ha = vha->hw;
1039
1040         if (ha->flags.enable_lip_full_login && !vha->vp_idx &&
1041             !IS_QLA81XX(ha)) {
1042                 ret = qla2x00_full_login_lip(vha);
1043                 if (ret != QLA_SUCCESS) {
1044                         DEBUG2_3(printk("%s(%ld): failed: "
1045                             "full_login_lip=%d.\n", __func__, vha->host_no,
1046                             ret));
1047                 }
1048                 atomic_set(&vha->loop_state, LOOP_DOWN);
1049                 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1050                 qla2x00_mark_all_devices_lost(vha, 0);
1051                 qla2x00_wait_for_loop_ready(vha);
1052         }
1053
1054         if (ha->flags.enable_lip_reset && !vha->vp_idx) {
1055                 ret = qla2x00_lip_reset(vha);
1056                 if (ret != QLA_SUCCESS) {
1057                         DEBUG2_3(printk("%s(%ld): failed: "
1058                             "lip_reset=%d.\n", __func__, vha->host_no, ret));
1059                 } else
1060                         qla2x00_wait_for_loop_ready(vha);
1061         }
1062
1063         if (ha->flags.enable_target_reset) {
1064                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
1065                         if (fcport->port_type != FCT_TARGET)
1066                                 continue;
1067
1068                         ret = ha->isp_ops->target_reset(fcport, 0);
1069                         if (ret != QLA_SUCCESS) {
1070                                 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1071                                     "target_reset=%d d_id=%x.\n", __func__,
1072                                     vha->host_no, ret, fcport->d_id.b24));
1073                         }
1074                 }
1075         }
1076         /* Issue marker command only when we are going to start the I/O */
1077         vha->marker_needed = 1;
1078
1079         return QLA_SUCCESS;
1080 }
1081
1082 void
1083 qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res)
1084 {
1085         int que, cnt;
1086         unsigned long flags;
1087         srb_t *sp;
1088         struct qla_hw_data *ha = vha->hw;
1089         struct req_que *req;
1090
1091         spin_lock_irqsave(&ha->hardware_lock, flags);
1092         for (que = 0; que < ha->max_queues; que++) {
1093                 req = ha->req_q_map[que];
1094                 if (!req)
1095                         continue;
1096                 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
1097                         sp = req->outstanding_cmds[cnt];
1098                         if (sp) {
1099                                 req->outstanding_cmds[cnt] = NULL;
1100                                 sp->cmd->result = res;
1101                                 qla2x00_sp_compl(ha, sp);
1102                         }
1103                 }
1104         }
1105         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1106 }
1107
1108 static int
1109 qla2xxx_slave_alloc(struct scsi_device *sdev)
1110 {
1111         struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1112
1113         if (!rport || fc_remote_port_chkready(rport))
1114                 return -ENXIO;
1115
1116         sdev->hostdata = *(fc_port_t **)rport->dd_data;
1117
1118         return 0;
1119 }
1120
1121 static int
1122 qla2xxx_slave_configure(struct scsi_device *sdev)
1123 {
1124         scsi_qla_host_t *vha = shost_priv(sdev->host);
1125         struct qla_hw_data *ha = vha->hw;
1126         struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1127         struct req_que *req = ha->req_q_map[vha->req_ques[0]];
1128
1129         if (sdev->tagged_supported)
1130                 scsi_activate_tcq(sdev, req->max_q_depth);
1131         else
1132                 scsi_deactivate_tcq(sdev, req->max_q_depth);
1133
1134         rport->dev_loss_tmo = ha->port_down_retry_count;
1135
1136         return 0;
1137 }
1138
1139 static void
1140 qla2xxx_slave_destroy(struct scsi_device *sdev)
1141 {
1142         sdev->hostdata = NULL;
1143 }
1144
1145 static int
1146 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1147 {
1148         scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1149         return sdev->queue_depth;
1150 }
1151
1152 static int
1153 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1154 {
1155         if (sdev->tagged_supported) {
1156                 scsi_set_tag_type(sdev, tag_type);
1157                 if (tag_type)
1158                         scsi_activate_tcq(sdev, sdev->queue_depth);
1159                 else
1160                         scsi_deactivate_tcq(sdev, sdev->queue_depth);
1161         } else
1162                 tag_type = 0;
1163
1164         return tag_type;
1165 }
1166
1167 /**
1168  * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1169  * @ha: HA context
1170  *
1171  * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1172  * supported addressing method.
1173  */
1174 static void
1175 qla2x00_config_dma_addressing(struct qla_hw_data *ha)
1176 {
1177         /* Assume a 32bit DMA mask. */
1178         ha->flags.enable_64bit_addressing = 0;
1179
1180         if (!dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(64))) {
1181                 /* Any upper-dword bits set? */
1182                 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1183                     !pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
1184                         /* Ok, a 64bit DMA mask is applicable. */
1185                         ha->flags.enable_64bit_addressing = 1;
1186                         ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1187                         ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1188                         return;
1189                 }
1190         }
1191
1192         dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(32));
1193         pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(32));
1194 }
1195
1196 static void
1197 qla2x00_enable_intrs(struct qla_hw_data *ha)
1198 {
1199         unsigned long flags = 0;
1200         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1201
1202         spin_lock_irqsave(&ha->hardware_lock, flags);
1203         ha->interrupts_on = 1;
1204         /* enable risc and host interrupts */
1205         WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1206         RD_REG_WORD(&reg->ictrl);
1207         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1208
1209 }
1210
1211 static void
1212 qla2x00_disable_intrs(struct qla_hw_data *ha)
1213 {
1214         unsigned long flags = 0;
1215         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1216
1217         spin_lock_irqsave(&ha->hardware_lock, flags);
1218         ha->interrupts_on = 0;
1219         /* disable risc and host interrupts */
1220         WRT_REG_WORD(&reg->ictrl, 0);
1221         RD_REG_WORD(&reg->ictrl);
1222         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1223 }
1224
1225 static void
1226 qla24xx_enable_intrs(struct qla_hw_data *ha)
1227 {
1228         unsigned long flags = 0;
1229         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1230
1231         spin_lock_irqsave(&ha->hardware_lock, flags);
1232         ha->interrupts_on = 1;
1233         WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1234         RD_REG_DWORD(&reg->ictrl);
1235         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1236 }
1237
1238 static void
1239 qla24xx_disable_intrs(struct qla_hw_data *ha)
1240 {
1241         unsigned long flags = 0;
1242         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1243
1244         if (IS_NOPOLLING_TYPE(ha))
1245                 return;
1246         spin_lock_irqsave(&ha->hardware_lock, flags);
1247         ha->interrupts_on = 0;
1248         WRT_REG_DWORD(&reg->ictrl, 0);
1249         RD_REG_DWORD(&reg->ictrl);
1250         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1251 }
1252
1253 static struct isp_operations qla2100_isp_ops = {
1254         .pci_config             = qla2100_pci_config,
1255         .reset_chip             = qla2x00_reset_chip,
1256         .chip_diag              = qla2x00_chip_diag,
1257         .config_rings           = qla2x00_config_rings,
1258         .reset_adapter          = qla2x00_reset_adapter,
1259         .nvram_config           = qla2x00_nvram_config,
1260         .update_fw_options      = qla2x00_update_fw_options,
1261         .load_risc              = qla2x00_load_risc,
1262         .pci_info_str           = qla2x00_pci_info_str,
1263         .fw_version_str         = qla2x00_fw_version_str,
1264         .intr_handler           = qla2100_intr_handler,
1265         .enable_intrs           = qla2x00_enable_intrs,
1266         .disable_intrs          = qla2x00_disable_intrs,
1267         .abort_command          = qla2x00_abort_command,
1268         .target_reset           = qla2x00_abort_target,
1269         .lun_reset              = qla2x00_lun_reset,
1270         .fabric_login           = qla2x00_login_fabric,
1271         .fabric_logout          = qla2x00_fabric_logout,
1272         .calc_req_entries       = qla2x00_calc_iocbs_32,
1273         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1274         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1275         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1276         .read_nvram             = qla2x00_read_nvram_data,
1277         .write_nvram            = qla2x00_write_nvram_data,
1278         .fw_dump                = qla2100_fw_dump,
1279         .beacon_on              = NULL,
1280         .beacon_off             = NULL,
1281         .beacon_blink           = NULL,
1282         .read_optrom            = qla2x00_read_optrom_data,
1283         .write_optrom           = qla2x00_write_optrom_data,
1284         .get_flash_version      = qla2x00_get_flash_version,
1285         .start_scsi             = qla2x00_start_scsi,
1286 };
1287
1288 static struct isp_operations qla2300_isp_ops = {
1289         .pci_config             = qla2300_pci_config,
1290         .reset_chip             = qla2x00_reset_chip,
1291         .chip_diag              = qla2x00_chip_diag,
1292         .config_rings           = qla2x00_config_rings,
1293         .reset_adapter          = qla2x00_reset_adapter,
1294         .nvram_config           = qla2x00_nvram_config,
1295         .update_fw_options      = qla2x00_update_fw_options,
1296         .load_risc              = qla2x00_load_risc,
1297         .pci_info_str           = qla2x00_pci_info_str,
1298         .fw_version_str         = qla2x00_fw_version_str,
1299         .intr_handler           = qla2300_intr_handler,
1300         .enable_intrs           = qla2x00_enable_intrs,
1301         .disable_intrs          = qla2x00_disable_intrs,
1302         .abort_command          = qla2x00_abort_command,
1303         .target_reset           = qla2x00_abort_target,
1304         .lun_reset              = qla2x00_lun_reset,
1305         .fabric_login           = qla2x00_login_fabric,
1306         .fabric_logout          = qla2x00_fabric_logout,
1307         .calc_req_entries       = qla2x00_calc_iocbs_32,
1308         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1309         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1310         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1311         .read_nvram             = qla2x00_read_nvram_data,
1312         .write_nvram            = qla2x00_write_nvram_data,
1313         .fw_dump                = qla2300_fw_dump,
1314         .beacon_on              = qla2x00_beacon_on,
1315         .beacon_off             = qla2x00_beacon_off,
1316         .beacon_blink           = qla2x00_beacon_blink,
1317         .read_optrom            = qla2x00_read_optrom_data,
1318         .write_optrom           = qla2x00_write_optrom_data,
1319         .get_flash_version      = qla2x00_get_flash_version,
1320         .start_scsi             = qla2x00_start_scsi,
1321 };
1322
1323 static struct isp_operations qla24xx_isp_ops = {
1324         .pci_config             = qla24xx_pci_config,
1325         .reset_chip             = qla24xx_reset_chip,
1326         .chip_diag              = qla24xx_chip_diag,
1327         .config_rings           = qla24xx_config_rings,
1328         .reset_adapter          = qla24xx_reset_adapter,
1329         .nvram_config           = qla24xx_nvram_config,
1330         .update_fw_options      = qla24xx_update_fw_options,
1331         .load_risc              = qla24xx_load_risc,
1332         .pci_info_str           = qla24xx_pci_info_str,
1333         .fw_version_str         = qla24xx_fw_version_str,
1334         .intr_handler           = qla24xx_intr_handler,
1335         .enable_intrs           = qla24xx_enable_intrs,
1336         .disable_intrs          = qla24xx_disable_intrs,
1337         .abort_command          = qla24xx_abort_command,
1338         .target_reset           = qla24xx_abort_target,
1339         .lun_reset              = qla24xx_lun_reset,
1340         .fabric_login           = qla24xx_login_fabric,
1341         .fabric_logout          = qla24xx_fabric_logout,
1342         .calc_req_entries       = NULL,
1343         .build_iocbs            = NULL,
1344         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1345         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1346         .read_nvram             = qla24xx_read_nvram_data,
1347         .write_nvram            = qla24xx_write_nvram_data,
1348         .fw_dump                = qla24xx_fw_dump,
1349         .beacon_on              = qla24xx_beacon_on,
1350         .beacon_off             = qla24xx_beacon_off,
1351         .beacon_blink           = qla24xx_beacon_blink,
1352         .read_optrom            = qla24xx_read_optrom_data,
1353         .write_optrom           = qla24xx_write_optrom_data,
1354         .get_flash_version      = qla24xx_get_flash_version,
1355         .start_scsi             = qla24xx_start_scsi,
1356 };
1357
1358 static struct isp_operations qla25xx_isp_ops = {
1359         .pci_config             = qla25xx_pci_config,
1360         .reset_chip             = qla24xx_reset_chip,
1361         .chip_diag              = qla24xx_chip_diag,
1362         .config_rings           = qla24xx_config_rings,
1363         .reset_adapter          = qla24xx_reset_adapter,
1364         .nvram_config           = qla24xx_nvram_config,
1365         .update_fw_options      = qla24xx_update_fw_options,
1366         .load_risc              = qla24xx_load_risc,
1367         .pci_info_str           = qla24xx_pci_info_str,
1368         .fw_version_str         = qla24xx_fw_version_str,
1369         .intr_handler           = qla24xx_intr_handler,
1370         .enable_intrs           = qla24xx_enable_intrs,
1371         .disable_intrs          = qla24xx_disable_intrs,
1372         .abort_command          = qla24xx_abort_command,
1373         .target_reset           = qla24xx_abort_target,
1374         .lun_reset              = qla24xx_lun_reset,
1375         .fabric_login           = qla24xx_login_fabric,
1376         .fabric_logout          = qla24xx_fabric_logout,
1377         .calc_req_entries       = NULL,
1378         .build_iocbs            = NULL,
1379         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1380         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1381         .read_nvram             = qla25xx_read_nvram_data,
1382         .write_nvram            = qla25xx_write_nvram_data,
1383         .fw_dump                = qla25xx_fw_dump,
1384         .beacon_on              = qla24xx_beacon_on,
1385         .beacon_off             = qla24xx_beacon_off,
1386         .beacon_blink           = qla24xx_beacon_blink,
1387         .read_optrom            = qla25xx_read_optrom_data,
1388         .write_optrom           = qla24xx_write_optrom_data,
1389         .get_flash_version      = qla24xx_get_flash_version,
1390         .start_scsi             = qla24xx_start_scsi,
1391 };
1392
1393 static struct isp_operations qla81xx_isp_ops = {
1394         .pci_config             = qla25xx_pci_config,
1395         .reset_chip             = qla24xx_reset_chip,
1396         .chip_diag              = qla24xx_chip_diag,
1397         .config_rings           = qla24xx_config_rings,
1398         .reset_adapter          = qla24xx_reset_adapter,
1399         .nvram_config           = qla81xx_nvram_config,
1400         .update_fw_options      = qla81xx_update_fw_options,
1401         .load_risc              = qla81xx_load_risc,
1402         .pci_info_str           = qla24xx_pci_info_str,
1403         .fw_version_str         = qla24xx_fw_version_str,
1404         .intr_handler           = qla24xx_intr_handler,
1405         .enable_intrs           = qla24xx_enable_intrs,
1406         .disable_intrs          = qla24xx_disable_intrs,
1407         .abort_command          = qla24xx_abort_command,
1408         .target_reset           = qla24xx_abort_target,
1409         .lun_reset              = qla24xx_lun_reset,
1410         .fabric_login           = qla24xx_login_fabric,
1411         .fabric_logout          = qla24xx_fabric_logout,
1412         .calc_req_entries       = NULL,
1413         .build_iocbs            = NULL,
1414         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1415         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1416         .read_nvram             = NULL,
1417         .write_nvram            = NULL,
1418         .fw_dump                = qla81xx_fw_dump,
1419         .beacon_on              = qla24xx_beacon_on,
1420         .beacon_off             = qla24xx_beacon_off,
1421         .beacon_blink           = qla24xx_beacon_blink,
1422         .read_optrom            = qla25xx_read_optrom_data,
1423         .write_optrom           = qla24xx_write_optrom_data,
1424         .get_flash_version      = qla24xx_get_flash_version,
1425         .start_scsi             = qla24xx_start_scsi,
1426 };
1427
1428 static inline void
1429 qla2x00_set_isp_flags(struct qla_hw_data *ha)
1430 {
1431         ha->device_type = DT_EXTENDED_IDS;
1432         switch (ha->pdev->device) {
1433         case PCI_DEVICE_ID_QLOGIC_ISP2100:
1434                 ha->device_type |= DT_ISP2100;
1435                 ha->device_type &= ~DT_EXTENDED_IDS;
1436                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1437                 break;
1438         case PCI_DEVICE_ID_QLOGIC_ISP2200:
1439                 ha->device_type |= DT_ISP2200;
1440                 ha->device_type &= ~DT_EXTENDED_IDS;
1441                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1442                 break;
1443         case PCI_DEVICE_ID_QLOGIC_ISP2300:
1444                 ha->device_type |= DT_ISP2300;
1445                 ha->device_type |= DT_ZIO_SUPPORTED;
1446                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1447                 break;
1448         case PCI_DEVICE_ID_QLOGIC_ISP2312:
1449                 ha->device_type |= DT_ISP2312;
1450                 ha->device_type |= DT_ZIO_SUPPORTED;
1451                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1452                 break;
1453         case PCI_DEVICE_ID_QLOGIC_ISP2322:
1454                 ha->device_type |= DT_ISP2322;
1455                 ha->device_type |= DT_ZIO_SUPPORTED;
1456                 if (ha->pdev->subsystem_vendor == 0x1028 &&
1457                     ha->pdev->subsystem_device == 0x0170)
1458                         ha->device_type |= DT_OEM_001;
1459                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1460                 break;
1461         case PCI_DEVICE_ID_QLOGIC_ISP6312:
1462                 ha->device_type |= DT_ISP6312;
1463                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1464                 break;
1465         case PCI_DEVICE_ID_QLOGIC_ISP6322:
1466                 ha->device_type |= DT_ISP6322;
1467                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1468                 break;
1469         case PCI_DEVICE_ID_QLOGIC_ISP2422:
1470                 ha->device_type |= DT_ISP2422;
1471                 ha->device_type |= DT_ZIO_SUPPORTED;
1472                 ha->device_type |= DT_FWI2;
1473                 ha->device_type |= DT_IIDMA;
1474                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1475                 break;
1476         case PCI_DEVICE_ID_QLOGIC_ISP2432:
1477                 ha->device_type |= DT_ISP2432;
1478                 ha->device_type |= DT_ZIO_SUPPORTED;
1479                 ha->device_type |= DT_FWI2;
1480                 ha->device_type |= DT_IIDMA;
1481                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1482                 break;
1483         case PCI_DEVICE_ID_QLOGIC_ISP8432:
1484                 ha->device_type |= DT_ISP8432;
1485                 ha->device_type |= DT_ZIO_SUPPORTED;
1486                 ha->device_type |= DT_FWI2;
1487                 ha->device_type |= DT_IIDMA;
1488                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1489                 break;
1490         case PCI_DEVICE_ID_QLOGIC_ISP5422:
1491                 ha->device_type |= DT_ISP5422;
1492                 ha->device_type |= DT_FWI2;
1493                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1494                 break;
1495         case PCI_DEVICE_ID_QLOGIC_ISP5432:
1496                 ha->device_type |= DT_ISP5432;
1497                 ha->device_type |= DT_FWI2;
1498                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1499                 break;
1500         case PCI_DEVICE_ID_QLOGIC_ISP2532:
1501                 ha->device_type |= DT_ISP2532;
1502                 ha->device_type |= DT_ZIO_SUPPORTED;
1503                 ha->device_type |= DT_FWI2;
1504                 ha->device_type |= DT_IIDMA;
1505                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1506                 break;
1507         case PCI_DEVICE_ID_QLOGIC_ISP8001:
1508                 ha->device_type |= DT_ISP8001;
1509                 ha->device_type |= DT_ZIO_SUPPORTED;
1510                 ha->device_type |= DT_FWI2;
1511                 ha->device_type |= DT_IIDMA;
1512                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1513                 break;
1514         }
1515 }
1516
1517 static int
1518 qla2x00_iospace_config(struct qla_hw_data *ha)
1519 {
1520         resource_size_t pio;
1521         uint16_t msix;
1522
1523         if (pci_request_selected_regions(ha->pdev, ha->bars,
1524             QLA2XXX_DRIVER_NAME)) {
1525                 qla_printk(KERN_WARNING, ha,
1526                     "Failed to reserve PIO/MMIO regions (%s)\n",
1527                     pci_name(ha->pdev));
1528
1529                 goto iospace_error_exit;
1530         }
1531         if (!(ha->bars & 1))
1532                 goto skip_pio;
1533
1534         /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1535         pio = pci_resource_start(ha->pdev, 0);
1536         if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
1537                 if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1538                         qla_printk(KERN_WARNING, ha,
1539                             "Invalid PCI I/O region size (%s)...\n",
1540                                 pci_name(ha->pdev));
1541                         pio = 0;
1542                 }
1543         } else {
1544                 qla_printk(KERN_WARNING, ha,
1545                     "region #0 not a PIO resource (%s)...\n",
1546                     pci_name(ha->pdev));
1547                 pio = 0;
1548         }
1549         ha->pio_address = pio;
1550
1551 skip_pio:
1552         /* Use MMIO operations for all accesses. */
1553         if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
1554                 qla_printk(KERN_ERR, ha,
1555                     "region #1 not an MMIO resource (%s), aborting\n",
1556                     pci_name(ha->pdev));
1557                 goto iospace_error_exit;
1558         }
1559         if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
1560                 qla_printk(KERN_ERR, ha,
1561                     "Invalid PCI mem region size (%s), aborting\n",
1562                         pci_name(ha->pdev));
1563                 goto iospace_error_exit;
1564         }
1565
1566         ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
1567         if (!ha->iobase) {
1568                 qla_printk(KERN_ERR, ha,
1569                     "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1570
1571                 goto iospace_error_exit;
1572         }
1573
1574         /* Determine queue resources */
1575         ha->max_queues = 1;
1576         if (ql2xmaxqueues <= 1 || (!IS_QLA25XX(ha) && !IS_QLA81XX(ha)))
1577                 goto mqiobase_exit;
1578         ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 3),
1579                         pci_resource_len(ha->pdev, 3));
1580         if (ha->mqiobase) {
1581                 /* Read MSIX vector size of the board */
1582                 pci_read_config_word(ha->pdev, QLA_PCI_MSIX_CONTROL, &msix);
1583                 ha->msix_count = msix;
1584                 /* Max queues are bounded by available msix vectors */
1585                 /* queue 0 uses two msix vectors */
1586                 if (ha->msix_count - 1 < ql2xmaxqueues)
1587                         ha->max_queues = ha->msix_count - 1;
1588                 else if (ql2xmaxqueues > QLA_MQ_SIZE)
1589                         ha->max_queues = QLA_MQ_SIZE;
1590                 else
1591                         ha->max_queues = ql2xmaxqueues;
1592                 qla_printk(KERN_INFO, ha,
1593                         "MSI-X vector count: %d\n", msix);
1594         }
1595
1596 mqiobase_exit:
1597         ha->msix_count = ha->max_queues + 1;
1598         return (0);
1599
1600 iospace_error_exit:
1601         return (-ENOMEM);
1602 }
1603
1604 static void
1605 qla2xxx_scan_start(struct Scsi_Host *shost)
1606 {
1607         scsi_qla_host_t *vha = shost_priv(shost);
1608
1609         set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1610         set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1611         set_bit(RSCN_UPDATE, &vha->dpc_flags);
1612         set_bit(NPIV_CONFIG_NEEDED, &vha->dpc_flags);
1613 }
1614
1615 static int
1616 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1617 {
1618         scsi_qla_host_t *vha = shost_priv(shost);
1619
1620         if (!vha->host)
1621                 return 1;
1622         if (time > vha->hw->loop_reset_delay * HZ)
1623                 return 1;
1624
1625         return atomic_read(&vha->loop_state) == LOOP_READY;
1626 }
1627
1628 /*
1629  * PCI driver interface
1630  */
1631 static int __devinit
1632 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1633 {
1634         int     ret = -ENODEV;
1635         struct Scsi_Host *host;
1636         scsi_qla_host_t *base_vha = NULL;
1637         struct qla_hw_data *ha;
1638         char pci_info[30];
1639         char fw_str[30];
1640         struct scsi_host_template *sht;
1641         int bars, max_id, mem_only = 0;
1642         uint16_t req_length = 0, rsp_length = 0;
1643         struct req_que *req = NULL;
1644         struct rsp_que *rsp = NULL;
1645
1646         bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
1647         sht = &qla2xxx_driver_template;
1648         if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1649             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1650             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8432 ||
1651             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1652             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
1653             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532 ||
1654             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8001) {
1655                 bars = pci_select_bars(pdev, IORESOURCE_MEM);
1656                 mem_only = 1;
1657         }
1658
1659         if (mem_only) {
1660                 if (pci_enable_device_mem(pdev))
1661                         goto probe_out;
1662         } else {
1663                 if (pci_enable_device(pdev))
1664                         goto probe_out;
1665         }
1666
1667         /* This may fail but that's ok */
1668         pci_enable_pcie_error_reporting(pdev);
1669
1670         ha = kzalloc(sizeof(struct qla_hw_data), GFP_KERNEL);
1671         if (!ha) {
1672                 DEBUG(printk("Unable to allocate memory for ha\n"));
1673                 goto probe_out;
1674         }
1675         ha->pdev = pdev;
1676
1677         /* Clear our data area */
1678         ha->bars = bars;
1679         ha->mem_only = mem_only;
1680         spin_lock_init(&ha->hardware_lock);
1681
1682         /* Set ISP-type information. */
1683         qla2x00_set_isp_flags(ha);
1684         /* Configure PCI I/O space */
1685         ret = qla2x00_iospace_config(ha);
1686         if (ret)
1687                 goto probe_hw_failed;
1688
1689         qla_printk(KERN_INFO, ha,
1690             "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1691             ha->iobase);
1692
1693         ha->prev_topology = 0;
1694         ha->init_cb_size = sizeof(init_cb_t);
1695         ha->link_data_rate = PORT_SPEED_UNKNOWN;
1696         ha->optrom_size = OPTROM_SIZE_2300;
1697
1698         /* Assign ISP specific operations. */
1699         max_id = MAX_TARGETS_2200;
1700         if (IS_QLA2100(ha)) {
1701                 max_id = MAX_TARGETS_2100;
1702                 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1703                 req_length = REQUEST_ENTRY_CNT_2100;
1704                 rsp_length = RESPONSE_ENTRY_CNT_2100;
1705                 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
1706                 ha->gid_list_info_size = 4;
1707                 ha->flash_conf_off = ~0;
1708                 ha->flash_data_off = ~0;
1709                 ha->nvram_conf_off = ~0;
1710                 ha->nvram_data_off = ~0;
1711                 ha->isp_ops = &qla2100_isp_ops;
1712         } else if (IS_QLA2200(ha)) {
1713                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1714                 req_length = REQUEST_ENTRY_CNT_2200;
1715                 rsp_length = RESPONSE_ENTRY_CNT_2100;
1716                 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
1717                 ha->gid_list_info_size = 4;
1718                 ha->flash_conf_off = ~0;
1719                 ha->flash_data_off = ~0;
1720                 ha->nvram_conf_off = ~0;
1721                 ha->nvram_data_off = ~0;
1722                 ha->isp_ops = &qla2100_isp_ops;
1723         } else if (IS_QLA23XX(ha)) {
1724                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1725                 req_length = REQUEST_ENTRY_CNT_2200;
1726                 rsp_length = RESPONSE_ENTRY_CNT_2300;
1727                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
1728                 ha->gid_list_info_size = 6;
1729                 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1730                         ha->optrom_size = OPTROM_SIZE_2322;
1731                 ha->flash_conf_off = ~0;
1732                 ha->flash_data_off = ~0;
1733                 ha->nvram_conf_off = ~0;
1734                 ha->nvram_data_off = ~0;
1735                 ha->isp_ops = &qla2300_isp_ops;
1736         } else if (IS_QLA24XX_TYPE(ha)) {
1737                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1738                 req_length = REQUEST_ENTRY_CNT_24XX;
1739                 rsp_length = RESPONSE_ENTRY_CNT_2300;
1740                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
1741                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1742                 ha->gid_list_info_size = 8;
1743                 ha->optrom_size = OPTROM_SIZE_24XX;
1744                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA24XX;
1745                 ha->isp_ops = &qla24xx_isp_ops;
1746                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
1747                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
1748                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
1749                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
1750         } else if (IS_QLA25XX(ha)) {
1751                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1752                 req_length = REQUEST_ENTRY_CNT_24XX;
1753                 rsp_length = RESPONSE_ENTRY_CNT_2300;
1754                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
1755                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1756                 ha->gid_list_info_size = 8;
1757                 ha->optrom_size = OPTROM_SIZE_25XX;
1758                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
1759                 ha->isp_ops = &qla25xx_isp_ops;
1760                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
1761                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
1762                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
1763                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
1764         } else if (IS_QLA81XX(ha)) {
1765                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1766                 req_length = REQUEST_ENTRY_CNT_24XX;
1767                 rsp_length = RESPONSE_ENTRY_CNT_2300;
1768                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
1769                 ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
1770                 ha->gid_list_info_size = 8;
1771                 ha->optrom_size = OPTROM_SIZE_81XX;
1772                 ha->isp_ops = &qla81xx_isp_ops;
1773                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
1774                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
1775                 ha->nvram_conf_off = ~0;
1776                 ha->nvram_data_off = ~0;
1777         }
1778
1779         mutex_init(&ha->vport_lock);
1780         init_completion(&ha->mbx_cmd_comp);
1781         complete(&ha->mbx_cmd_comp);
1782         init_completion(&ha->mbx_intr_comp);
1783
1784         set_bit(0, (unsigned long *) ha->vp_idx_map);
1785
1786         qla2x00_config_dma_addressing(ha);
1787         ret = qla2x00_mem_alloc(ha, req_length, rsp_length, &req, &rsp);
1788         if (!ret) {
1789                 qla_printk(KERN_WARNING, ha,
1790                     "[ERROR] Failed to allocate memory for adapter\n");
1791
1792                 goto probe_hw_failed;
1793         }
1794
1795         req->max_q_depth = MAX_Q_DEPTH;
1796         if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
1797                 req->max_q_depth = ql2xmaxqdepth;
1798
1799
1800         base_vha = qla2x00_create_host(sht, ha);
1801         if (!base_vha) {
1802                 qla_printk(KERN_WARNING, ha,
1803                     "[ERROR] Failed to allocate memory for scsi_host\n");
1804
1805                 ret = -ENOMEM;
1806                 qla2x00_mem_free(ha);
1807                 qla2x00_free_que(ha, req, rsp);
1808                 goto probe_hw_failed;
1809         }
1810
1811         pci_set_drvdata(pdev, base_vha);
1812
1813         host = base_vha->host;
1814         base_vha->req_ques[0] = req->id;
1815         host->can_queue = req->length + 128;
1816         if (IS_QLA2XXX_MIDTYPE(ha))
1817                 base_vha->mgmt_svr_loop_id = 10 + base_vha->vp_idx;
1818         else
1819                 base_vha->mgmt_svr_loop_id = MANAGEMENT_SERVER +
1820                                                 base_vha->vp_idx;
1821         if (IS_QLA2100(ha))
1822                 host->sg_tablesize = 32;
1823         host->max_id = max_id;
1824         host->this_id = 255;
1825         host->cmd_per_lun = 3;
1826         host->unique_id = host->host_no;
1827         host->max_cmd_len = MAX_CMDSZ;
1828         host->max_channel = MAX_BUSES - 1;
1829         host->max_lun = MAX_LUNS;
1830         host->transportt = qla2xxx_transport_template;
1831
1832         /* Set up the irqs */
1833         ret = qla2x00_request_irqs(ha, rsp);
1834         if (ret)
1835                 goto probe_init_failed;
1836         /* Alloc arrays of request and response ring ptrs */
1837         if (!qla2x00_alloc_queues(ha)) {
1838                 qla_printk(KERN_WARNING, ha,
1839                 "[ERROR] Failed to allocate memory for queue"
1840                 " pointers\n");
1841                 goto probe_init_failed;
1842         }
1843         ha->rsp_q_map[0] = rsp;
1844         ha->req_q_map[0] = req;
1845
1846         /* FWI2-capable only. */
1847         req->req_q_in = &ha->iobase->isp24.req_q_in;
1848         req->req_q_out = &ha->iobase->isp24.req_q_out;
1849         rsp->rsp_q_in = &ha->iobase->isp24.rsp_q_in;
1850         rsp->rsp_q_out = &ha->iobase->isp24.rsp_q_out;
1851         if (ha->mqenable) {
1852                 req->req_q_in = &ha->mqiobase->isp25mq.req_q_in;
1853                 req->req_q_out = &ha->mqiobase->isp25mq.req_q_out;
1854                 rsp->rsp_q_in = &ha->mqiobase->isp25mq.rsp_q_in;
1855                 rsp->rsp_q_out =  &ha->mqiobase->isp25mq.rsp_q_out;
1856         }
1857
1858         if (qla2x00_initialize_adapter(base_vha)) {
1859                 qla_printk(KERN_WARNING, ha,
1860                     "Failed to initialize adapter\n");
1861
1862                 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1863                     "Adapter flags %x.\n",
1864                     base_vha->host_no, base_vha->device_flags));
1865
1866                 ret = -ENODEV;
1867                 goto probe_failed;
1868         }
1869
1870         /*
1871          * Startup the kernel thread for this host adapter
1872          */
1873         ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
1874                         "%s_dpc", base_vha->host_str);
1875         if (IS_ERR(ha->dpc_thread)) {
1876                 qla_printk(KERN_WARNING, ha,
1877                     "Unable to start DPC thread!\n");
1878                 ret = PTR_ERR(ha->dpc_thread);
1879                 goto probe_failed;
1880         }
1881
1882         list_add_tail(&base_vha->list, &ha->vp_list);
1883         base_vha->host->irq = ha->pdev->irq;
1884
1885         /* Initialized the timer */
1886         qla2x00_start_timer(base_vha, qla2x00_timer, WATCH_INTERVAL);
1887
1888         DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1889             base_vha->host_no, ha));
1890
1891         base_vha->flags.init_done = 1;
1892         base_vha->flags.online = 1;
1893
1894         ret = scsi_add_host(host, &pdev->dev);
1895         if (ret)
1896                 goto probe_failed;
1897
1898         ha->isp_ops->enable_intrs(ha);
1899
1900         scsi_scan_host(host);
1901
1902         qla2x00_alloc_sysfs_attr(base_vha);
1903
1904         qla2x00_init_host_attr(base_vha);
1905
1906         qla2x00_dfs_setup(base_vha);
1907
1908         qla_printk(KERN_INFO, ha, "\n"
1909             " QLogic Fibre Channel HBA Driver: %s\n"
1910             "  QLogic %s - %s\n"
1911             "  ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1912             qla2x00_version_str, ha->model_number,
1913             ha->model_desc ? ha->model_desc : "", pdev->device,
1914             ha->isp_ops->pci_info_str(base_vha, pci_info), pci_name(pdev),
1915             ha->flags.enable_64bit_addressing ? '+' : '-', base_vha->host_no,
1916             ha->isp_ops->fw_version_str(base_vha, fw_str));
1917
1918         return 0;
1919
1920 probe_init_failed:
1921         qla2x00_free_que(ha, req, rsp);
1922         ha->max_queues = 0;
1923
1924 probe_failed:
1925         if (base_vha->timer_active)
1926                 qla2x00_stop_timer(base_vha);
1927         base_vha->flags.online = 0;
1928         if (ha->dpc_thread) {
1929                 struct task_struct *t = ha->dpc_thread;
1930
1931                 ha->dpc_thread = NULL;
1932                 kthread_stop(t);
1933         }
1934
1935         qla2x00_free_device(base_vha);
1936
1937         scsi_host_put(base_vha->host);
1938
1939 probe_hw_failed:
1940         if (ha->iobase)
1941                 iounmap(ha->iobase);
1942
1943         pci_release_selected_regions(ha->pdev, ha->bars);
1944         kfree(ha);
1945         ha = NULL;
1946
1947 probe_out:
1948         pci_disable_device(pdev);
1949         return ret;
1950 }
1951
1952 static void
1953 qla2x00_remove_one(struct pci_dev *pdev)
1954 {
1955         scsi_qla_host_t *base_vha, *vha, *temp;
1956         struct qla_hw_data  *ha;
1957
1958         base_vha = pci_get_drvdata(pdev);
1959         ha = base_vha->hw;
1960
1961         list_for_each_entry_safe(vha, temp, &ha->vp_list, list) {
1962                 if (vha && vha->fc_vport)
1963                         fc_vport_terminate(vha->fc_vport);
1964         }
1965
1966         set_bit(UNLOADING, &base_vha->dpc_flags);
1967
1968         qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
1969
1970         qla2x00_dfs_remove(base_vha);
1971
1972         qla84xx_put_chip(base_vha);
1973
1974         /* Disable timer */
1975         if (base_vha->timer_active)
1976                 qla2x00_stop_timer(base_vha);
1977
1978         base_vha->flags.online = 0;
1979
1980         /* Kill the kernel thread for this host */
1981         if (ha->dpc_thread) {
1982                 struct task_struct *t = ha->dpc_thread;
1983
1984                 /*
1985                  * qla2xxx_wake_dpc checks for ->dpc_thread
1986                  * so we need to zero it out.
1987                  */
1988                 ha->dpc_thread = NULL;
1989                 kthread_stop(t);
1990         }
1991
1992         qla2x00_free_sysfs_attr(base_vha);
1993
1994         fc_remove_host(base_vha->host);
1995
1996         scsi_remove_host(base_vha->host);
1997
1998         qla2x00_free_device(base_vha);
1999
2000         scsi_host_put(base_vha->host);
2001
2002         if (ha->iobase)
2003                 iounmap(ha->iobase);
2004
2005         if (ha->mqiobase)
2006                 iounmap(ha->mqiobase);
2007
2008         pci_release_selected_regions(ha->pdev, ha->bars);
2009         kfree(ha);
2010         ha = NULL;
2011
2012         pci_disable_device(pdev);
2013         pci_set_drvdata(pdev, NULL);
2014 }
2015
2016 static void
2017 qla2x00_free_device(scsi_qla_host_t *vha)
2018 {
2019         struct qla_hw_data *ha = vha->hw;
2020
2021         if (ha->flags.fce_enabled)
2022                 qla2x00_disable_fce_trace(vha, NULL, NULL);
2023
2024         if (ha->eft)
2025                 qla2x00_disable_eft_trace(vha);
2026
2027         /* Stop currently executing firmware. */
2028         qla2x00_try_to_stop_firmware(vha);
2029
2030         /* turn-off interrupts on the card */
2031         if (ha->interrupts_on)
2032                 ha->isp_ops->disable_intrs(ha);
2033
2034         qla2x00_free_irqs(vha);
2035
2036         qla2x00_mem_free(ha);
2037
2038         qla2x00_free_queues(ha);
2039 }
2040
2041 static inline void
2042 qla2x00_schedule_rport_del(struct scsi_qla_host *vha, fc_port_t *fcport,
2043     int defer)
2044 {
2045         struct fc_rport *rport;
2046
2047         if (!fcport->rport)
2048                 return;
2049
2050         rport = fcport->rport;
2051         if (defer) {
2052                 spin_lock_irq(vha->host->host_lock);
2053                 fcport->drport = rport;
2054                 spin_unlock_irq(vha->host->host_lock);
2055                 set_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags);
2056                 qla2xxx_wake_dpc(vha);
2057         } else
2058                 fc_remote_port_delete(rport);
2059 }
2060
2061 /*
2062  * qla2x00_mark_device_lost Updates fcport state when device goes offline.
2063  *
2064  * Input: ha = adapter block pointer.  fcport = port structure pointer.
2065  *
2066  * Return: None.
2067  *
2068  * Context:
2069  */
2070 void qla2x00_mark_device_lost(scsi_qla_host_t *vha, fc_port_t *fcport,
2071     int do_login, int defer)
2072 {
2073         if (atomic_read(&fcport->state) == FCS_ONLINE &&
2074             vha->vp_idx == fcport->vp_idx) {
2075                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2076                 qla2x00_schedule_rport_del(vha, fcport, defer);
2077         }
2078         /*
2079          * We may need to retry the login, so don't change the state of the
2080          * port but do the retries.
2081          */
2082         if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
2083                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2084
2085         if (!do_login)
2086                 return;
2087
2088         if (fcport->login_retry == 0) {
2089                 fcport->login_retry = vha->hw->login_retry_count;
2090                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2091
2092                 DEBUG(printk("scsi(%ld): Port login retry: "
2093                     "%02x%02x%02x%02x%02x%02x%02x%02x, "
2094                     "id = 0x%04x retry cnt=%d\n",
2095                     vha->host_no,
2096                     fcport->port_name[0],
2097                     fcport->port_name[1],
2098                     fcport->port_name[2],
2099                     fcport->port_name[3],
2100                     fcport->port_name[4],
2101                     fcport->port_name[5],
2102                     fcport->port_name[6],
2103                     fcport->port_name[7],
2104                     fcport->loop_id,
2105                     fcport->login_retry));
2106         }
2107 }
2108
2109 /*
2110  * qla2x00_mark_all_devices_lost
2111  *      Updates fcport state when device goes offline.
2112  *
2113  * Input:
2114  *      ha = adapter block pointer.
2115  *      fcport = port structure pointer.
2116  *
2117  * Return:
2118  *      None.
2119  *
2120  * Context:
2121  */
2122 void
2123 qla2x00_mark_all_devices_lost(scsi_qla_host_t *vha, int defer)
2124 {
2125         fc_port_t *fcport;
2126
2127         list_for_each_entry(fcport, &vha->vp_fcports, list) {
2128                 if (vha->vp_idx != fcport->vp_idx)
2129                         continue;
2130                 /*
2131                  * No point in marking the device as lost, if the device is
2132                  * already DEAD.
2133                  */
2134                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
2135                         continue;
2136                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
2137                         atomic_set(&fcport->state, FCS_DEVICE_LOST);
2138                         qla2x00_schedule_rport_del(vha, fcport, defer);
2139                 } else
2140                         atomic_set(&fcport->state, FCS_DEVICE_LOST);
2141         }
2142 }
2143
2144 /*
2145 * qla2x00_mem_alloc
2146 *      Allocates adapter memory.
2147 *
2148 * Returns:
2149 *      0  = success.
2150 *      !0  = failure.
2151 */
2152 static int
2153 qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
2154         struct req_que **req, struct rsp_que **rsp)
2155 {
2156         char    name[16];
2157
2158         ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
2159                 &ha->init_cb_dma, GFP_KERNEL);
2160         if (!ha->init_cb)
2161                 goto fail;
2162
2163         ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
2164                 &ha->gid_list_dma, GFP_KERNEL);
2165         if (!ha->gid_list)
2166                 goto fail_free_init_cb;
2167
2168         ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
2169         if (!ha->srb_mempool)
2170                 goto fail_free_gid_list;
2171
2172         /* Get memory for cached NVRAM */
2173         ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
2174         if (!ha->nvram)
2175                 goto fail_free_srb_mempool;
2176
2177         snprintf(name, sizeof(name), "%s_%d", QLA2XXX_DRIVER_NAME,
2178                 ha->pdev->device);
2179         ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2180                 DMA_POOL_SIZE, 8, 0);
2181         if (!ha->s_dma_pool)
2182                 goto fail_free_nvram;
2183
2184         /* Allocate memory for SNS commands */
2185         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2186         /* Get consistent memory allocated for SNS commands */
2187                 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
2188                 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
2189                 if (!ha->sns_cmd)
2190                         goto fail_dma_pool;
2191         } else {
2192         /* Get consistent memory allocated for MS IOCB */
2193                 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2194                         &ha->ms_iocb_dma);
2195                 if (!ha->ms_iocb)
2196                         goto fail_dma_pool;
2197         /* Get consistent memory allocated for CT SNS commands */
2198                 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2199                         sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
2200                 if (!ha->ct_sns)
2201                         goto fail_free_ms_iocb;
2202         }
2203
2204         /* Allocate memory for request ring */
2205         *req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
2206         if (!*req) {
2207                 DEBUG(printk("Unable to allocate memory for req\n"));
2208                 goto fail_req;
2209         }
2210         (*req)->length = req_len;
2211         (*req)->ring = dma_alloc_coherent(&ha->pdev->dev,
2212                 ((*req)->length + 1) * sizeof(request_t),
2213                 &(*req)->dma, GFP_KERNEL);
2214         if (!(*req)->ring) {
2215                 DEBUG(printk("Unable to allocate memory for req_ring\n"));
2216                 goto fail_req_ring;
2217         }
2218         /* Allocate memory for response ring */
2219         *rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
2220         if (!*rsp) {
2221                 qla_printk(KERN_WARNING, ha,
2222                         "Unable to allocate memory for rsp\n");
2223                 goto fail_rsp;
2224         }
2225         (*rsp)->hw = ha;
2226         (*rsp)->length = rsp_len;
2227         (*rsp)->ring = dma_alloc_coherent(&ha->pdev->dev,
2228                 ((*rsp)->length + 1) * sizeof(response_t),
2229                 &(*rsp)->dma, GFP_KERNEL);
2230         if (!(*rsp)->ring) {
2231                 qla_printk(KERN_WARNING, ha,
2232                         "Unable to allocate memory for rsp_ring\n");
2233                 goto fail_rsp_ring;
2234         }
2235         (*req)->rsp = *rsp;
2236         (*rsp)->req = *req;
2237         /* Allocate memory for NVRAM data for vports */
2238         if (ha->nvram_npiv_size) {
2239                 ha->npiv_info = kzalloc(sizeof(struct qla_npiv_entry) *
2240                                         ha->nvram_npiv_size, GFP_KERNEL);
2241                 if (!ha->npiv_info) {
2242                         qla_printk(KERN_WARNING, ha,
2243                                 "Unable to allocate memory for npiv info\n");
2244                         goto fail_npiv_info;
2245                 }
2246         } else
2247                 ha->npiv_info = NULL;
2248
2249         /* Get consistent memory allocated for EX-INIT-CB. */
2250         if (IS_QLA81XX(ha)) {
2251                 ha->ex_init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2252                     &ha->ex_init_cb_dma);
2253                 if (!ha->ex_init_cb)
2254                         goto fail_ex_init_cb;
2255         }
2256
2257         INIT_LIST_HEAD(&ha->vp_list);
2258         return 1;
2259
2260 fail_ex_init_cb:
2261         kfree(ha->npiv_info);
2262 fail_npiv_info:
2263         dma_free_coherent(&ha->pdev->dev, ((*rsp)->length + 1) *
2264                 sizeof(response_t), (*rsp)->ring, (*rsp)->dma);
2265         (*rsp)->ring = NULL;
2266         (*rsp)->dma = 0;
2267 fail_rsp_ring:
2268         kfree(*rsp);
2269 fail_rsp:
2270         dma_free_coherent(&ha->pdev->dev, ((*req)->length + 1) *
2271                 sizeof(request_t), (*req)->ring, (*req)->dma);
2272         (*req)->ring = NULL;
2273         (*req)->dma = 0;
2274 fail_req_ring:
2275         kfree(*req);
2276 fail_req:
2277         dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2278                 ha->ct_sns, ha->ct_sns_dma);
2279         ha->ct_sns = NULL;
2280         ha->ct_sns_dma = 0;
2281 fail_free_ms_iocb:
2282         dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2283         ha->ms_iocb = NULL;
2284         ha->ms_iocb_dma = 0;
2285 fail_dma_pool:
2286         dma_pool_destroy(ha->s_dma_pool);
2287         ha->s_dma_pool = NULL;
2288 fail_free_nvram:
2289         kfree(ha->nvram);
2290         ha->nvram = NULL;
2291 fail_free_srb_mempool:
2292         mempool_destroy(ha->srb_mempool);
2293         ha->srb_mempool = NULL;
2294 fail_free_gid_list:
2295         dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2296         ha->gid_list_dma);
2297         ha->gid_list = NULL;
2298         ha->gid_list_dma = 0;
2299 fail_free_init_cb:
2300         dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
2301         ha->init_cb_dma);
2302         ha->init_cb = NULL;
2303         ha->init_cb_dma = 0;
2304 fail:
2305         DEBUG(printk("%s: Memory allocation failure\n", __func__));
2306         return -ENOMEM;
2307 }
2308
2309 /*
2310 * qla2x00_mem_free
2311 *      Frees all adapter allocated memory.
2312 *
2313 * Input:
2314 *      ha = adapter block pointer.
2315 */
2316 static void
2317 qla2x00_mem_free(struct qla_hw_data *ha)
2318 {
2319         if (ha->srb_mempool)
2320                 mempool_destroy(ha->srb_mempool);
2321
2322         if (ha->fce)
2323                 dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
2324                 ha->fce_dma);
2325
2326         if (ha->fw_dump) {
2327                 if (ha->eft)
2328                         dma_free_coherent(&ha->pdev->dev,
2329                         ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2330                 vfree(ha->fw_dump);
2331         }
2332
2333         if (ha->sns_cmd)
2334                 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2335                 ha->sns_cmd, ha->sns_cmd_dma);
2336
2337         if (ha->ct_sns)
2338                 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2339                 ha->ct_sns, ha->ct_sns_dma);
2340
2341         if (ha->sfp_data)
2342                 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2343
2344         if (ha->edc_data)
2345                 dma_pool_free(ha->s_dma_pool, ha->edc_data, ha->edc_data_dma);
2346
2347         if (ha->ms_iocb)
2348                 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2349
2350         if (ha->ex_init_cb)
2351                 dma_pool_free(ha->s_dma_pool, ha->ex_init_cb, ha->ex_init_cb_dma);
2352
2353         if (ha->s_dma_pool)
2354                 dma_pool_destroy(ha->s_dma_pool);
2355
2356         if (ha->gid_list)
2357                 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2358                 ha->gid_list_dma);
2359
2360         if (ha->init_cb)
2361                 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
2362                 ha->init_cb, ha->init_cb_dma);
2363         vfree(ha->optrom_buffer);
2364         kfree(ha->nvram);
2365         kfree(ha->npiv_info);
2366
2367         ha->srb_mempool = NULL;
2368         ha->eft = NULL;
2369         ha->eft_dma = 0;
2370         ha->sns_cmd = NULL;
2371         ha->sns_cmd_dma = 0;
2372         ha->ct_sns = NULL;
2373         ha->ct_sns_dma = 0;
2374         ha->ms_iocb = NULL;
2375         ha->ms_iocb_dma = 0;
2376         ha->init_cb = NULL;
2377         ha->init_cb_dma = 0;
2378         ha->ex_init_cb = NULL;
2379         ha->ex_init_cb_dma = 0;
2380
2381         ha->s_dma_pool = NULL;
2382
2383         ha->gid_list = NULL;
2384         ha->gid_list_dma = 0;
2385
2386         ha->fw_dump = NULL;
2387         ha->fw_dumped = 0;
2388         ha->fw_dump_reading = 0;
2389 }
2390
2391 struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht,
2392                                                 struct qla_hw_data *ha)
2393 {
2394         struct Scsi_Host *host;
2395         struct scsi_qla_host *vha = NULL;
2396
2397         host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
2398         if (host == NULL) {
2399                 printk(KERN_WARNING
2400                 "qla2xxx: Couldn't allocate host from scsi layer!\n");
2401                 goto fail;
2402         }
2403
2404         /* Clear our data area */
2405         vha = shost_priv(host);
2406         memset(vha, 0, sizeof(scsi_qla_host_t));
2407
2408         vha->host = host;
2409         vha->host_no = host->host_no;
2410         vha->hw = ha;
2411
2412         INIT_LIST_HEAD(&vha->vp_fcports);
2413         INIT_LIST_HEAD(&vha->work_list);
2414         INIT_LIST_HEAD(&vha->list);
2415
2416         sprintf(vha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, vha->host_no);
2417         return vha;
2418
2419 fail:
2420         return vha;
2421 }
2422
2423 static struct qla_work_evt *
2424 qla2x00_alloc_work(struct scsi_qla_host *vha, enum qla_work_type type,
2425     int locked)
2426 {
2427         struct qla_work_evt *e;
2428
2429         e = kzalloc(sizeof(struct qla_work_evt), locked ? GFP_ATOMIC:
2430             GFP_KERNEL);
2431         if (!e)
2432                 return NULL;
2433
2434         INIT_LIST_HEAD(&e->list);
2435         e->type = type;
2436         e->flags = QLA_EVT_FLAG_FREE;
2437         return e;
2438 }
2439
2440 static int
2441 qla2x00_post_work(struct scsi_qla_host *vha, struct qla_work_evt *e, int locked)
2442 {
2443         unsigned long uninitialized_var(flags);
2444         struct qla_hw_data *ha = vha->hw;
2445
2446         if (!locked)
2447                 spin_lock_irqsave(&ha->hardware_lock, flags);
2448         list_add_tail(&e->list, &vha->work_list);
2449         qla2xxx_wake_dpc(vha);
2450         if (!locked)
2451                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2452         return QLA_SUCCESS;
2453 }
2454
2455 int
2456 qla2x00_post_aen_work(struct scsi_qla_host *vha, enum fc_host_event_code code,
2457     u32 data)
2458 {
2459         struct qla_work_evt *e;
2460
2461         e = qla2x00_alloc_work(vha, QLA_EVT_AEN, 1);
2462         if (!e)
2463                 return QLA_FUNCTION_FAILED;
2464
2465         e->u.aen.code = code;
2466         e->u.aen.data = data;
2467         return qla2x00_post_work(vha, e, 1);
2468 }
2469
2470 int
2471 qla2x00_post_idc_ack_work(struct scsi_qla_host *vha, uint16_t *mb)
2472 {
2473         struct qla_work_evt *e;
2474
2475         e = qla2x00_alloc_work(vha, QLA_EVT_IDC_ACK, 1);
2476         if (!e)
2477                 return QLA_FUNCTION_FAILED;
2478
2479         memcpy(e->u.idc_ack.mb, mb, QLA_IDC_ACK_REGS * sizeof(uint16_t));
2480         return qla2x00_post_work(vha, e, 1);
2481 }
2482
2483 static void
2484 qla2x00_do_work(struct scsi_qla_host *vha)
2485 {
2486         struct qla_work_evt *e;
2487         struct qla_hw_data *ha = vha->hw;
2488
2489         spin_lock_irq(&ha->hardware_lock);
2490         while (!list_empty(&vha->work_list)) {
2491                 e = list_entry(vha->work_list.next, struct qla_work_evt, list);
2492                 list_del_init(&e->list);
2493                 spin_unlock_irq(&ha->hardware_lock);
2494
2495                 switch (e->type) {
2496                 case QLA_EVT_AEN:
2497                         fc_host_post_event(vha->host, fc_get_event_number(),
2498                             e->u.aen.code, e->u.aen.data);
2499                         break;
2500                 case QLA_EVT_IDC_ACK:
2501                         qla81xx_idc_ack(vha, e->u.idc_ack.mb);
2502                         break;
2503                 }
2504                 if (e->flags & QLA_EVT_FLAG_FREE)
2505                         kfree(e);
2506                 spin_lock_irq(&ha->hardware_lock);
2507         }
2508         spin_unlock_irq(&ha->hardware_lock);
2509 }
2510 /* Relogins all the fcports of a vport
2511  * Context: dpc thread
2512  */
2513 void qla2x00_relogin(struct scsi_qla_host *vha)
2514 {
2515         fc_port_t       *fcport;
2516         int status;
2517         uint16_t        next_loopid = 0;
2518         struct qla_hw_data *ha = vha->hw;
2519
2520         list_for_each_entry(fcport, &vha->vp_fcports, list) {
2521         /*
2522          * If the port is not ONLINE then try to login
2523          * to it if we haven't run out of retries.
2524          */
2525                 if (atomic_read(&fcport->state) !=
2526                         FCS_ONLINE && fcport->login_retry) {
2527
2528                         if (fcport->flags & FCF_FABRIC_DEVICE) {
2529                                 if (fcport->flags & FCF_TAPE_PRESENT)
2530                                         ha->isp_ops->fabric_logout(vha,
2531                                                         fcport->loop_id,
2532                                                         fcport->d_id.b.domain,
2533                                                         fcport->d_id.b.area,
2534                                                         fcport->d_id.b.al_pa);
2535
2536                                 status = qla2x00_fabric_login(vha, fcport,
2537                                                         &next_loopid);
2538                         } else
2539                                 status = qla2x00_local_device_login(vha,
2540                                                                 fcport);
2541
2542                         fcport->login_retry--;
2543                         if (status == QLA_SUCCESS) {
2544                                 fcport->old_loop_id = fcport->loop_id;
2545
2546                                 DEBUG(printk("scsi(%ld): port login OK: logged "
2547                                 "in ID 0x%x\n", vha->host_no, fcport->loop_id));
2548
2549                                 qla2x00_update_fcport(vha, fcport);
2550
2551                         } else if (status == 1) {
2552                                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2553                                 /* retry the login again */
2554                                 DEBUG(printk("scsi(%ld): Retrying"
2555                                 " %d login again loop_id 0x%x\n",
2556                                 vha->host_no, fcport->login_retry,
2557                                                 fcport->loop_id));
2558                         } else {
2559                                 fcport->login_retry = 0;
2560                         }
2561
2562                         if (fcport->login_retry == 0 && status != QLA_SUCCESS)
2563                                 fcport->loop_id = FC_NO_LOOP_ID;
2564                 }
2565                 if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
2566                         break;
2567         }
2568 }
2569
2570 /**************************************************************************
2571 * qla2x00_do_dpc
2572 *   This kernel thread is a task that is schedule by the interrupt handler
2573 *   to perform the background processing for interrupts.
2574 *
2575 * Notes:
2576 * This task always run in the context of a kernel thread.  It
2577 * is kick-off by the driver's detect code and starts up
2578 * up one per adapter. It immediately goes to sleep and waits for
2579 * some fibre event.  When either the interrupt handler or
2580 * the timer routine detects a event it will one of the task
2581 * bits then wake us up.
2582 **************************************************************************/
2583 static int
2584 qla2x00_do_dpc(void *data)
2585 {
2586         int             rval;
2587         scsi_qla_host_t *base_vha;
2588         struct qla_hw_data *ha;
2589
2590         ha = (struct qla_hw_data *)data;
2591         base_vha = pci_get_drvdata(ha->pdev);
2592
2593         set_user_nice(current, -20);
2594
2595         while (!kthread_should_stop()) {
2596                 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2597
2598                 set_current_state(TASK_INTERRUPTIBLE);
2599                 schedule();
2600                 __set_current_state(TASK_RUNNING);
2601
2602                 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2603
2604                 /* Initialization not yet finished. Don't do anything yet. */
2605                 if (!base_vha->flags.init_done)
2606                         continue;
2607
2608                 DEBUG3(printk("scsi(%ld): DPC handler\n", base_vha->host_no));
2609
2610                 ha->dpc_active = 1;
2611
2612                 if (ha->flags.mbox_busy) {
2613                         ha->dpc_active = 0;
2614                         continue;
2615                 }
2616
2617                 qla2x00_do_work(base_vha);
2618
2619                 if (test_and_clear_bit(ISP_ABORT_NEEDED,
2620                                                 &base_vha->dpc_flags)) {
2621
2622                         DEBUG(printk("scsi(%ld): dpc: sched "
2623                             "qla2x00_abort_isp ha = %p\n",
2624                             base_vha->host_no, ha));
2625                         if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2626                             &base_vha->dpc_flags))) {
2627
2628                                 if (qla2x00_abort_isp(base_vha)) {
2629                                         /* failed. retry later */
2630                                         set_bit(ISP_ABORT_NEEDED,
2631                                             &base_vha->dpc_flags);
2632                                 }
2633                                 clear_bit(ABORT_ISP_ACTIVE,
2634                                                 &base_vha->dpc_flags);
2635                         }
2636
2637                         DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2638                             base_vha->host_no));
2639                 }
2640
2641                 if (test_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags)) {
2642                         qla2x00_update_fcports(base_vha);
2643                         clear_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
2644                 }
2645
2646                 if (test_and_clear_bit(RESET_MARKER_NEEDED,
2647                                                         &base_vha->dpc_flags) &&
2648                     (!(test_and_set_bit(RESET_ACTIVE, &base_vha->dpc_flags)))) {
2649
2650                         DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2651                             base_vha->host_no));
2652
2653                         qla2x00_rst_aen(base_vha);
2654                         clear_bit(RESET_ACTIVE, &base_vha->dpc_flags);
2655                 }
2656
2657                 /* Retry each device up to login retry count */
2658                 if ((test_and_clear_bit(RELOGIN_NEEDED,
2659                                                 &base_vha->dpc_flags)) &&
2660                     !test_bit(LOOP_RESYNC_NEEDED, &base_vha->dpc_flags) &&
2661                     atomic_read(&base_vha->loop_state) != LOOP_DOWN) {
2662
2663                         DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2664                                         base_vha->host_no));
2665                         qla2x00_relogin(base_vha);
2666
2667                         DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2668                             base_vha->host_no));
2669                 }
2670
2671                 if (test_and_clear_bit(LOOP_RESYNC_NEEDED,
2672                                                         &base_vha->dpc_flags)) {
2673
2674                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2675                                 base_vha->host_no));
2676
2677                         if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2678                             &base_vha->dpc_flags))) {
2679
2680                                 rval = qla2x00_loop_resync(base_vha);
2681
2682                                 clear_bit(LOOP_RESYNC_ACTIVE,
2683                                                 &base_vha->dpc_flags);
2684                         }
2685
2686                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2687                             base_vha->host_no));
2688                 }
2689
2690                 if (test_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags) &&
2691                     atomic_read(&base_vha->loop_state) == LOOP_READY) {
2692                         clear_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags);
2693                         qla2xxx_flash_npiv_conf(base_vha);
2694                 }
2695
2696                 if (!ha->interrupts_on)
2697                         ha->isp_ops->enable_intrs(ha);
2698
2699                 if (test_and_clear_bit(BEACON_BLINK_NEEDED,
2700                                         &base_vha->dpc_flags))
2701                         ha->isp_ops->beacon_blink(base_vha);
2702
2703                 qla2x00_do_dpc_all_vps(base_vha);
2704
2705                 ha->dpc_active = 0;
2706         } /* End of while(1) */
2707
2708         DEBUG(printk("scsi(%ld): DPC handler exiting\n", base_vha->host_no));
2709
2710         /*
2711          * Make sure that nobody tries to wake us up again.
2712          */
2713         ha->dpc_active = 0;
2714
2715         return 0;
2716 }
2717
2718 void
2719 qla2xxx_wake_dpc(struct scsi_qla_host *vha)
2720 {
2721         struct qla_hw_data *ha = vha->hw;
2722         struct task_struct *t = ha->dpc_thread;
2723
2724         if (!test_bit(UNLOADING, &vha->dpc_flags) && t)
2725                 wake_up_process(t);
2726 }
2727
2728 /*
2729 *  qla2x00_rst_aen
2730 *      Processes asynchronous reset.
2731 *
2732 * Input:
2733 *      ha  = adapter block pointer.
2734 */
2735 static void
2736 qla2x00_rst_aen(scsi_qla_host_t *vha)
2737 {
2738         if (vha->flags.online && !vha->flags.reset_active &&
2739             !atomic_read(&vha->loop_down_timer) &&
2740             !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) {
2741                 do {
2742                         clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
2743
2744                         /*
2745                          * Issue marker command only when we are going to start
2746                          * the I/O.
2747                          */
2748                         vha->marker_needed = 1;
2749                 } while (!atomic_read(&vha->loop_down_timer) &&
2750                     (test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags)));
2751         }
2752 }
2753
2754 static void
2755 qla2x00_sp_free_dma(srb_t *sp)
2756 {
2757         struct scsi_cmnd *cmd = sp->cmd;
2758
2759         if (sp->flags & SRB_DMA_VALID) {
2760                 scsi_dma_unmap(cmd);
2761                 sp->flags &= ~SRB_DMA_VALID;
2762         }
2763         CMD_SP(cmd) = NULL;
2764 }
2765
2766 void
2767 qla2x00_sp_compl(struct qla_hw_data *ha, srb_t *sp)
2768 {
2769         struct scsi_cmnd *cmd = sp->cmd;
2770
2771         qla2x00_sp_free_dma(sp);
2772
2773         mempool_free(sp, ha->srb_mempool);
2774
2775         cmd->scsi_done(cmd);
2776 }
2777
2778 /**************************************************************************
2779 *   qla2x00_timer
2780 *
2781 * Description:
2782 *   One second timer
2783 *
2784 * Context: Interrupt
2785 ***************************************************************************/
2786 void
2787 qla2x00_timer(scsi_qla_host_t *vha)
2788 {
2789         unsigned long   cpu_flags = 0;
2790         fc_port_t       *fcport;
2791         int             start_dpc = 0;
2792         int             index;
2793         srb_t           *sp;
2794         int             t;
2795         struct qla_hw_data *ha = vha->hw;
2796         struct req_que *req;
2797         /*
2798          * Ports - Port down timer.
2799          *
2800          * Whenever, a port is in the LOST state we start decrementing its port
2801          * down timer every second until it reaches zero. Once  it reaches zero
2802          * the port it marked DEAD.
2803          */
2804         t = 0;
2805         list_for_each_entry(fcport, &vha->vp_fcports, list) {
2806                 if (fcport->port_type != FCT_TARGET)
2807                         continue;
2808
2809                 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2810
2811                         if (atomic_read(&fcport->port_down_timer) == 0)
2812                                 continue;
2813
2814                         if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
2815                                 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
2816
2817                         DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
2818                             "%d remaining\n",
2819                             vha->host_no,
2820                             t, atomic_read(&fcport->port_down_timer)));
2821                 }
2822                 t++;
2823         } /* End of for fcport  */
2824
2825
2826         /* Loop down handler. */
2827         if (atomic_read(&vha->loop_down_timer) > 0 &&
2828             !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
2829                 && vha->flags.online) {
2830
2831                 if (atomic_read(&vha->loop_down_timer) ==
2832                     vha->loop_down_abort_time) {
2833
2834                         DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2835                             "queues before time expire\n",
2836                             vha->host_no));
2837
2838                         if (!IS_QLA2100(ha) && vha->link_down_timeout)
2839                                 atomic_set(&vha->loop_state, LOOP_DEAD);
2840
2841                         /* Schedule an ISP abort to return any tape commands. */
2842                         /* NPIV - scan physical port only */
2843                         if (!vha->vp_idx) {
2844                                 spin_lock_irqsave(&ha->hardware_lock,
2845                                     cpu_flags);
2846                                 req = ha->req_q_map[0];
2847                                 for (index = 1;
2848                                     index < MAX_OUTSTANDING_COMMANDS;
2849                                     index++) {
2850                                         fc_port_t *sfcp;
2851
2852                                         sp = req->outstanding_cmds[index];
2853                                         if (!sp)
2854                                                 continue;
2855                                         sfcp = sp->fcport;
2856                                         if (!(sfcp->flags & FCF_TAPE_PRESENT))
2857                                                 continue;
2858
2859                                         set_bit(ISP_ABORT_NEEDED,
2860                                                         &vha->dpc_flags);
2861                                         break;
2862                                 }
2863                                 spin_unlock_irqrestore(&ha->hardware_lock,
2864                                                                 cpu_flags);
2865                         }
2866                         start_dpc++;
2867                 }
2868
2869                 /* if the loop has been down for 4 minutes, reinit adapter */
2870                 if (atomic_dec_and_test(&vha->loop_down_timer) != 0) {
2871                         if (!(vha->device_flags & DFLG_NO_CABLE) &&
2872                             !vha->vp_idx) {
2873                                 DEBUG(printk("scsi(%ld): Loop down - "
2874                                     "aborting ISP.\n",
2875                                     vha->host_no));
2876                                 qla_printk(KERN_WARNING, ha,
2877                                     "Loop down - aborting ISP.\n");
2878
2879                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2880                         }
2881                 }
2882                 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
2883                     vha->host_no,
2884                     atomic_read(&vha->loop_down_timer)));
2885         }
2886
2887         /* Check if beacon LED needs to be blinked */
2888         if (ha->beacon_blink_led == 1) {
2889                 set_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags);
2890                 start_dpc++;
2891         }
2892
2893         /* Process any deferred work. */
2894         if (!list_empty(&vha->work_list))
2895                 start_dpc++;
2896
2897         /* Schedule the DPC routine if needed */
2898         if ((test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
2899             test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) ||
2900             test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags) ||
2901             start_dpc ||
2902             test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) ||
2903             test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags) ||
2904             test_bit(VP_DPC_NEEDED, &vha->dpc_flags) ||
2905             test_bit(RELOGIN_NEEDED, &vha->dpc_flags)))
2906                 qla2xxx_wake_dpc(vha);
2907
2908         qla2x00_restart_timer(vha, WATCH_INTERVAL);
2909 }
2910
2911 /* Firmware interface routines. */
2912
2913 #define FW_BLOBS        7
2914 #define FW_ISP21XX      0
2915 #define FW_ISP22XX      1
2916 #define FW_ISP2300      2
2917 #define FW_ISP2322      3
2918 #define FW_ISP24XX      4
2919 #define FW_ISP25XX      5
2920 #define FW_ISP81XX      6
2921
2922 #define FW_FILE_ISP21XX "ql2100_fw.bin"
2923 #define FW_FILE_ISP22XX "ql2200_fw.bin"
2924 #define FW_FILE_ISP2300 "ql2300_fw.bin"
2925 #define FW_FILE_ISP2322 "ql2322_fw.bin"
2926 #define FW_FILE_ISP24XX "ql2400_fw.bin"
2927 #define FW_FILE_ISP25XX "ql2500_fw.bin"
2928 #define FW_FILE_ISP81XX "ql8100_fw.bin"
2929
2930 static DEFINE_MUTEX(qla_fw_lock);
2931
2932 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
2933         { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
2934         { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
2935         { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
2936         { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
2937         { .name = FW_FILE_ISP24XX, },
2938         { .name = FW_FILE_ISP25XX, },
2939         { .name = FW_FILE_ISP81XX, },
2940 };
2941
2942 struct fw_blob *
2943 qla2x00_request_firmware(scsi_qla_host_t *vha)
2944 {
2945         struct qla_hw_data *ha = vha->hw;
2946         struct fw_blob *blob;
2947
2948         blob = NULL;
2949         if (IS_QLA2100(ha)) {
2950                 blob = &qla_fw_blobs[FW_ISP21XX];
2951         } else if (IS_QLA2200(ha)) {
2952                 blob = &qla_fw_blobs[FW_ISP22XX];
2953         } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
2954                 blob = &qla_fw_blobs[FW_ISP2300];
2955         } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
2956                 blob = &qla_fw_blobs[FW_ISP2322];
2957         } else if (IS_QLA24XX_TYPE(ha)) {
2958                 blob = &qla_fw_blobs[FW_ISP24XX];
2959         } else if (IS_QLA25XX(ha)) {
2960                 blob = &qla_fw_blobs[FW_ISP25XX];
2961         } else if (IS_QLA81XX(ha)) {
2962                 blob = &qla_fw_blobs[FW_ISP81XX];
2963         }
2964
2965         mutex_lock(&qla_fw_lock);
2966         if (blob->fw)
2967                 goto out;
2968
2969         if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
2970                 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
2971                     "(%s).\n", vha->host_no, blob->name));
2972                 blob->fw = NULL;
2973                 blob = NULL;
2974                 goto out;
2975         }
2976
2977 out:
2978         mutex_unlock(&qla_fw_lock);
2979         return blob;
2980 }
2981
2982 static void
2983 qla2x00_release_firmware(void)
2984 {
2985         int idx;
2986
2987         mutex_lock(&qla_fw_lock);
2988         for (idx = 0; idx < FW_BLOBS; idx++)
2989                 if (qla_fw_blobs[idx].fw)
2990                         release_firmware(qla_fw_blobs[idx].fw);
2991         mutex_unlock(&qla_fw_lock);
2992 }
2993
2994 static pci_ers_result_t
2995 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
2996 {
2997         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
2998
2999         switch (state) {
3000         case pci_channel_io_normal:
3001                 return PCI_ERS_RESULT_CAN_RECOVER;
3002         case pci_channel_io_frozen:
3003                 pci_disable_device(pdev);
3004                 return PCI_ERS_RESULT_NEED_RESET;
3005         case pci_channel_io_perm_failure:
3006                 qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
3007                 return PCI_ERS_RESULT_DISCONNECT;
3008         }
3009         return PCI_ERS_RESULT_NEED_RESET;
3010 }
3011
3012 static pci_ers_result_t
3013 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
3014 {
3015         int risc_paused = 0;
3016         uint32_t stat;
3017         unsigned long flags;
3018         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3019         struct qla_hw_data *ha = base_vha->hw;
3020         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3021         struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
3022
3023         spin_lock_irqsave(&ha->hardware_lock, flags);
3024         if (IS_QLA2100(ha) || IS_QLA2200(ha)){
3025                 stat = RD_REG_DWORD(&reg->hccr);
3026                 if (stat & HCCR_RISC_PAUSE)
3027                         risc_paused = 1;
3028         } else if (IS_QLA23XX(ha)) {
3029                 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
3030                 if (stat & HSR_RISC_PAUSED)
3031                         risc_paused = 1;
3032         } else if (IS_FWI2_CAPABLE(ha)) {
3033                 stat = RD_REG_DWORD(&reg24->host_status);
3034                 if (stat & HSRX_RISC_PAUSED)
3035                         risc_paused = 1;
3036         }
3037         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3038
3039         if (risc_paused) {
3040                 qla_printk(KERN_INFO, ha, "RISC paused -- mmio_enabled, "
3041                     "Dumping firmware!\n");
3042                 ha->isp_ops->fw_dump(base_vha, 0);
3043
3044                 return PCI_ERS_RESULT_NEED_RESET;
3045         } else
3046                 return PCI_ERS_RESULT_RECOVERED;
3047 }
3048
3049 static pci_ers_result_t
3050 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
3051 {
3052         pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
3053         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3054         struct qla_hw_data *ha = base_vha->hw;
3055         int rc;
3056
3057         if (ha->mem_only)
3058                 rc = pci_enable_device_mem(pdev);
3059         else
3060                 rc = pci_enable_device(pdev);
3061
3062         if (rc) {
3063                 qla_printk(KERN_WARNING, ha,
3064                     "Can't re-enable PCI device after reset.\n");
3065
3066                 return ret;
3067         }
3068         pci_set_master(pdev);
3069
3070         if (ha->isp_ops->pci_config(base_vha))
3071                 return ret;
3072
3073         set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
3074         if (qla2x00_abort_isp(base_vha) == QLA_SUCCESS)
3075                 ret =  PCI_ERS_RESULT_RECOVERED;
3076         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
3077
3078         return ret;
3079 }
3080
3081 static void
3082 qla2xxx_pci_resume(struct pci_dev *pdev)
3083 {
3084         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3085         struct qla_hw_data *ha = base_vha->hw;
3086         int ret;
3087
3088         ret = qla2x00_wait_for_hba_online(base_vha);
3089         if (ret != QLA_SUCCESS) {
3090                 qla_printk(KERN_ERR, ha,
3091                     "the device failed to resume I/O "
3092                     "from slot/link_reset");
3093         }
3094         pci_cleanup_aer_uncorrect_error_status(pdev);
3095 }
3096
3097 static struct pci_error_handlers qla2xxx_err_handler = {
3098         .error_detected = qla2xxx_pci_error_detected,
3099         .mmio_enabled = qla2xxx_pci_mmio_enabled,
3100         .slot_reset = qla2xxx_pci_slot_reset,
3101         .resume = qla2xxx_pci_resume,
3102 };
3103
3104 static struct pci_device_id qla2xxx_pci_tbl[] = {
3105         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
3106         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
3107         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
3108         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
3109         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
3110         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
3111         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
3112         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
3113         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
3114         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) },
3115         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
3116         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
3117         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
3118         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8001) },
3119         { 0 },
3120 };
3121 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
3122
3123 static struct pci_driver qla2xxx_pci_driver = {
3124         .name           = QLA2XXX_DRIVER_NAME,
3125         .driver         = {
3126                 .owner          = THIS_MODULE,
3127         },
3128         .id_table       = qla2xxx_pci_tbl,
3129         .probe          = qla2x00_probe_one,
3130         .remove         = qla2x00_remove_one,
3131         .err_handler    = &qla2xxx_err_handler,
3132 };
3133
3134 /**
3135  * qla2x00_module_init - Module initialization.
3136  **/
3137 static int __init
3138 qla2x00_module_init(void)
3139 {
3140         int ret = 0;
3141
3142         /* Allocate cache for SRBs. */
3143         srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
3144             SLAB_HWCACHE_ALIGN, NULL);
3145         if (srb_cachep == NULL) {
3146                 printk(KERN_ERR
3147                     "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
3148                 return -ENOMEM;
3149         }
3150
3151         /* Derive version string. */
3152         strcpy(qla2x00_version_str, QLA2XXX_VERSION);
3153         if (ql2xextended_error_logging)
3154                 strcat(qla2x00_version_str, "-debug");
3155
3156         qla2xxx_transport_template =
3157             fc_attach_transport(&qla2xxx_transport_functions);
3158         if (!qla2xxx_transport_template) {
3159                 kmem_cache_destroy(srb_cachep);
3160                 return -ENODEV;
3161         }
3162         qla2xxx_transport_vport_template =
3163             fc_attach_transport(&qla2xxx_transport_vport_functions);
3164         if (!qla2xxx_transport_vport_template) {
3165                 kmem_cache_destroy(srb_cachep);
3166                 fc_release_transport(qla2xxx_transport_template);
3167                 return -ENODEV;
3168         }
3169
3170         printk(KERN_INFO "QLogic Fibre Channel HBA Driver: %s\n",
3171             qla2x00_version_str);
3172         ret = pci_register_driver(&qla2xxx_pci_driver);
3173         if (ret) {
3174                 kmem_cache_destroy(srb_cachep);
3175                 fc_release_transport(qla2xxx_transport_template);
3176                 fc_release_transport(qla2xxx_transport_vport_template);
3177         }
3178         return ret;
3179 }
3180
3181 /**
3182  * qla2x00_module_exit - Module cleanup.
3183  **/
3184 static void __exit
3185 qla2x00_module_exit(void)
3186 {
3187         pci_unregister_driver(&qla2xxx_pci_driver);
3188         qla2x00_release_firmware();
3189         kmem_cache_destroy(srb_cachep);
3190         fc_release_transport(qla2xxx_transport_template);
3191         fc_release_transport(qla2xxx_transport_vport_template);
3192 }
3193
3194 module_init(qla2x00_module_init);
3195 module_exit(qla2x00_module_exit);
3196
3197 MODULE_AUTHOR("QLogic Corporation");
3198 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
3199 MODULE_LICENSE("GPL");
3200 MODULE_VERSION(QLA2XXX_VERSION);
3201 MODULE_FIRMWARE(FW_FILE_ISP21XX);
3202 MODULE_FIRMWARE(FW_FILE_ISP22XX);
3203 MODULE_FIRMWARE(FW_FILE_ISP2300);
3204 MODULE_FIRMWARE(FW_FILE_ISP2322);
3205 MODULE_FIRMWARE(FW_FILE_ISP24XX);
3206 MODULE_FIRMWARE(FW_FILE_ISP25XX);
3207 MODULE_FIRMWARE(FW_FILE_ISP81XX);