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