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 static void qla2x00_config_dma_addressing(scsi_qla_host_t *ha);
  69
  70 int ql2xfdmienable=1;
  71 module_param(ql2xfdmienable, int, S_IRUGO|S_IRUSR);
  72 MODULE_PARM_DESC(ql2xfdmienable,
  73                 "Enables FDMI registratons "
  74                 "Default is 0 - no FDMI. 1 - perfom FDMI.");
  75
  76 #define MAX_Q_DEPTH    32
  77 static int ql2xmaxqdepth = MAX_Q_DEPTH;
  78 module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
  79 MODULE_PARM_DESC(ql2xmaxqdepth,
  80                 "Maximum queue depth to report for target devices.");
  81
  82 int ql2xqfullrampup = 120;
  83 module_param(ql2xqfullrampup, int, S_IRUGO|S_IWUSR);
  84 MODULE_PARM_DESC(ql2xqfullrampup,
  85                 "Number of seconds to wait to begin to ramp-up the queue "
  86                 "depth for a device after a queue-full condition has been "
  87                 "detected.  Default is 120 seconds.");
  88
  89 int ql2xiidmaenable=1;
  90 module_param(ql2xiidmaenable, int, S_IRUGO|S_IRUSR);
  91 MODULE_PARM_DESC(ql2xiidmaenable,
  92                 "Enables iIDMA settings "
  93                 "Default is 1 - perform iIDMA. 0 - no iIDMA.");
  94
  95 int ql2xmaxqueues = 1;
  96 module_param(ql2xmaxqueues, int, S_IRUGO|S_IRUSR);
  97 MODULE_PARM_DESC(ql2xmaxqueues,
  98                 "Enables MQ settings "
  99                 "Default is 1 for single queue. Set it to number \
 100                         of queues in MQ mode.");
 101 /*
 102  * SCSI host template entry points
 103  */
 104 static int qla2xxx_slave_configure(struct scsi_device * device);
 105 static int qla2xxx_slave_alloc(struct scsi_device *);
 106 static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
 107 static void qla2xxx_scan_start(struct Scsi_Host *);
 108 static void qla2xxx_slave_destroy(struct scsi_device *);
 109 static int qla2x00_queuecommand(struct scsi_cmnd *cmd,
 110                 void (*fn)(struct scsi_cmnd *));
 111 static int qla24xx_queuecommand(struct scsi_cmnd *cmd,
 112                 void (*fn)(struct scsi_cmnd *));
 113 static int qla2xxx_eh_abort(struct scsi_cmnd *);
 114 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
 115 static int qla2xxx_eh_target_reset(struct scsi_cmnd *);
 116 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
 117 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
 118
 119 static int qla2x00_change_queue_depth(struct scsi_device *, int);
 120 static int qla2x00_change_queue_type(struct scsi_device *, int);
 121
 122 static struct scsi_host_template qla2x00_driver_template = {
 123         .module                 = THIS_MODULE,
 124         .name                   = QLA2XXX_DRIVER_NAME,
 125         .queuecommand           = qla2x00_queuecommand,
 126
 127         .eh_abort_handler       = qla2xxx_eh_abort,
 128         .eh_device_reset_handler = qla2xxx_eh_device_reset,
 129         .eh_target_reset_handler = qla2xxx_eh_target_reset,
 130         .eh_bus_reset_handler   = qla2xxx_eh_bus_reset,
 131         .eh_host_reset_handler  = qla2xxx_eh_host_reset,
 132
 133         .slave_configure        = qla2xxx_slave_configure,
 134
 135         .slave_alloc            = qla2xxx_slave_alloc,
 136         .slave_destroy          = qla2xxx_slave_destroy,
 137         .scan_finished          = qla2xxx_scan_finished,
 138         .scan_start             = qla2xxx_scan_start,
 139         .change_queue_depth     = qla2x00_change_queue_depth,
 140         .change_queue_type      = qla2x00_change_queue_type,
 141         .this_id                = -1,
 142         .cmd_per_lun            = 3,
 143         .use_clustering         = ENABLE_CLUSTERING,
 144         .sg_tablesize           = SG_ALL,
 145
 146         /*
 147          * The RISC allows for each command to transfer (2^32-1) bytes of data,
 148          * which equates to 0x800000 sectors.
 149          */
 150         .max_sectors            = 0xFFFF,
 151         .shost_attrs            = qla2x00_host_attrs,
 152 };
 153
 154 struct scsi_host_template qla24xx_driver_template = {
 155         .module                 = THIS_MODULE,
 156         .name                   = QLA2XXX_DRIVER_NAME,
 157         .queuecommand           = qla24xx_queuecommand,
 158
 159         .eh_abort_handler       = qla2xxx_eh_abort,
 160         .eh_device_reset_handler = qla2xxx_eh_device_reset,
 161         .eh_target_reset_handler = qla2xxx_eh_target_reset,
 162         .eh_bus_reset_handler   = qla2xxx_eh_bus_reset,
 163         .eh_host_reset_handler  = qla2xxx_eh_host_reset,
 164
 165         .slave_configure        = qla2xxx_slave_configure,
 166
 167         .slave_alloc            = qla2xxx_slave_alloc,
 168         .slave_destroy          = qla2xxx_slave_destroy,
 169         .scan_finished          = qla2xxx_scan_finished,
 170         .scan_start             = qla2xxx_scan_start,
 171         .change_queue_depth     = qla2x00_change_queue_depth,
 172         .change_queue_type      = qla2x00_change_queue_type,
 173         .this_id                = -1,
 174         .cmd_per_lun            = 3,
 175         .use_clustering         = ENABLE_CLUSTERING,
 176         .sg_tablesize           = SG_ALL,
 177
 178         .max_sectors            = 0xFFFF,
 179         .shost_attrs            = qla2x00_host_attrs,
 180 };
 181
 182 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
 183 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
 184
 185 /* TODO Convert to inlines
 186  *
 187  * Timer routines
 188  */
 189
 190 __inline__ void
 191 qla2x00_start_timer(scsi_qla_host_t *vha, void *func, unsigned long interval)
 192 {
 193         init_timer(&vha->timer);
 194         vha->timer.expires = jiffies + interval * HZ;
 195         vha->timer.data = (unsigned long)vha;
 196         vha->timer.function = (void (*)(unsigned long))func;
 197         add_timer(&vha->timer);
 198         vha->timer_active = 1;
 199 }
 200
 201 static inline void
 202 qla2x00_restart_timer(scsi_qla_host_t *vha, unsigned long interval)
 203 {
 204         mod_timer(&vha->timer, jiffies + interval * HZ);
 205 }
 206
 207 static __inline__ void
 208 qla2x00_stop_timer(scsi_qla_host_t *vha)
 209 {
 210         del_timer_sync(&vha->timer);
 211         vha->timer_active = 0;
 212 }
 213
 214 static int qla2x00_do_dpc(void *data);
 215
 216 static void qla2x00_rst_aen(scsi_qla_host_t *);
 217
 218 static int qla2x00_mem_alloc(struct qla_hw_data *, uint16_t, uint16_t,
 219         struct req_que **, struct rsp_que **);
 220 static void qla2x00_mem_free(struct qla_hw_data *);
 221 static void qla2x00_sp_free_dma(srb_t *);
 222
 223 /* -------------------------------------------------------------------------- */
 224 static int qla2x00_alloc_queues(struct qla_hw_data *ha)
 225 {
 226         ha->req_q_map = kzalloc(sizeof(struct req_que *) * ha->max_queues,
 227                                 GFP_KERNEL);
 228         if (!ha->req_q_map) {
 229                 qla_printk(KERN_WARNING, ha,
 230                         "Unable to allocate memory for request queue ptrs\n");
 231                 goto fail_req_map;
 232         }
 233
 234         ha->rsp_q_map = kzalloc(sizeof(struct rsp_que *) * ha->max_queues,
 235                                 GFP_KERNEL);
 236         if (!ha->rsp_q_map) {
 237                 qla_printk(KERN_WARNING, ha,
 238                         "Unable to allocate memory for response queue ptrs\n");
 239                 goto fail_rsp_map;
 240         }
 241         set_bit(0, ha->rsp_qid_map);
 242         set_bit(0, ha->req_qid_map);
 243         return 1;
 244
 245 fail_rsp_map:
 246         kfree(ha->req_q_map);
 247         ha->req_q_map = NULL;
 248 fail_req_map:
 249         return -ENOMEM;
 250 }
 251
 252 static void qla2x00_free_que(struct qla_hw_data *ha, struct req_que *req,
 253         struct rsp_que *rsp)
 254 {
 255         if (rsp && rsp->ring)
 256                 dma_free_coherent(&ha->pdev->dev,
 257                 (rsp->length + 1) * sizeof(response_t),
 258                 rsp->ring, rsp->dma);
 259
 260         kfree(rsp);
 261         rsp = NULL;
 262         if (req && req->ring)
 263                 dma_free_coherent(&ha->pdev->dev,
 264                 (req->length + 1) * sizeof(request_t),
 265                 req->ring, req->dma);
 266
 267         kfree(req);
 268         req = NULL;
 269 }
 270
 271 static void qla2x00_free_queues(struct qla_hw_data *ha)
 272 {
 273         struct req_que *req;
 274         struct rsp_que *rsp;
 275         int cnt;
 276
 277         for (cnt = 0; cnt < ha->max_queues; cnt++) {
 278                 rsp = ha->rsp_q_map[cnt];
 279                 req = ha->req_q_map[cnt];
 280                 qla2x00_free_que(ha, req, rsp);
 281         }
 282         kfree(ha->rsp_q_map);
 283         ha->rsp_q_map = NULL;
 284
 285         kfree(ha->req_q_map);
 286         ha->req_q_map = NULL;
 287 }
 288
 289 static char *
 290 qla2x00_pci_info_str(struct scsi_qla_host *vha, char *str)
 291 {
 292         struct qla_hw_data *ha = vha->hw;
 293         static char *pci_bus_modes[] = {
 294                 "33", "66", "100", "133",
 295         };
 296         uint16_t pci_bus;
 297
 298         strcpy(str, "PCI");
 299         pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
 300         if (pci_bus) {
 301                 strcat(str, "-X (");
 302                 strcat(str, pci_bus_modes[pci_bus]);
 303         } else {
 304                 pci_bus = (ha->pci_attr & BIT_8) >> 8;
 305                 strcat(str, " (");
 306                 strcat(str, pci_bus_modes[pci_bus]);
 307         }
 308         strcat(str, " MHz)");
 309
 310         return (str);
 311 }
 312
 313 static char *
 314 qla24xx_pci_info_str(struct scsi_qla_host *vha, char *str)
 315 {
 316         static char *pci_bus_modes[] = { "33", "66", "100", "133", };
 317         struct qla_hw_data *ha = vha->hw;
 318         uint32_t pci_bus;
 319         int pcie_reg;
 320
 321         pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
 322         if (pcie_reg) {
 323                 char lwstr[6];
 324                 uint16_t pcie_lstat, lspeed, lwidth;
 325
 326                 pcie_reg += 0x12;
 327                 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
 328                 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
 329                 lwidth = (pcie_lstat &
 330                     (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
 331
 332                 strcpy(str, "PCIe (");
 333                 if (lspeed == 1)
 334                         strcat(str, "2.5GT/s ");
 335                 else if (lspeed == 2)
 336                         strcat(str, "5.0GT/s ");
 337                 else
 338                         strcat(str, "<unknown> ");
 339                 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
 340                 strcat(str, lwstr);
 341
 342                 return str;
 343         }
 344
 345         strcpy(str, "PCI");
 346         pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
 347         if (pci_bus == 0 || pci_bus == 8) {
 348                 strcat(str, " (");
 349                 strcat(str, pci_bus_modes[pci_bus >> 3]);
 350         } else {
 351                 strcat(str, "-X ");
 352                 if (pci_bus & BIT_2)
 353                         strcat(str, "Mode 2");
 354                 else
 355                         strcat(str, "Mode 1");
 356                 strcat(str, " (");
 357                 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
 358         }
 359         strcat(str, " MHz)");
 360
 361         return str;
 362 }
 363
 364 static char *
 365 qla2x00_fw_version_str(struct scsi_qla_host *vha, char *str)
 366 {
 367         char un_str[10];
 368         struct qla_hw_data *ha = vha->hw;
 369
 370         sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
 371             ha->fw_minor_version,
 372             ha->fw_subminor_version);
 373
 374         if (ha->fw_attributes & BIT_9) {
 375                 strcat(str, "FLX");
 376                 return (str);
 377         }
 378
 379         switch (ha->fw_attributes & 0xFF) {
 380         case 0x7:
 381                 strcat(str, "EF");
 382                 break;
 383         case 0x17:
 384                 strcat(str, "TP");
 385                 break;
 386         case 0x37:
 387                 strcat(str, "IP");
 388                 break;
 389         case 0x77:
 390                 strcat(str, "VI");
 391                 break;
 392         default:
 393                 sprintf(un_str, "(%x)", ha->fw_attributes);
 394                 strcat(str, un_str);
 395                 break;
 396         }
 397         if (ha->fw_attributes & 0x100)
 398                 strcat(str, "X");
 399
 400         return (str);
 401 }
 402
 403 static char *
 404 qla24xx_fw_version_str(struct scsi_qla_host *vha, char *str)
 405 {
 406         struct qla_hw_data *ha = vha->hw;
 407         sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
 408             ha->fw_minor_version,
 409             ha->fw_subminor_version);
 410
 411         if (ha->fw_attributes & BIT_0)
 412                 strcat(str, "[Class 2] ");
 413         if (ha->fw_attributes & BIT_1)
 414                 strcat(str, "[IP] ");
 415         if (ha->fw_attributes & BIT_2)
 416                 strcat(str, "[Multi-ID] ");
 417         if (ha->fw_attributes & BIT_3)
 418                 strcat(str, "[SB-2] ");
 419         if (ha->fw_attributes & BIT_4)
 420                 strcat(str, "[T10 CRC] ");
 421         if (ha->fw_attributes & BIT_5)
 422                 strcat(str, "[VI] ");
 423         if (ha->fw_attributes & BIT_10)
 424                 strcat(str, "[84XX] ");
 425         if (ha->fw_attributes & BIT_13)
 426                 strcat(str, "[Experimental]");
 427         return str;
 428 }
 429
 430 static inline srb_t *
 431 qla2x00_get_new_sp(scsi_qla_host_t *vha, fc_port_t *fcport,
 432     struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 433 {
 434         srb_t *sp;
 435         struct qla_hw_data *ha = vha->hw;
 436
 437         sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
 438         if (!sp)
 439                 return sp;
 440
 441         sp->vha = vha;
 442         sp->fcport = fcport;
 443         sp->cmd = cmd;
 444         sp->que = ha->req_q_map[0];
 445         sp->flags = 0;
 446         CMD_SP(cmd) = (void *)sp;
 447         cmd->scsi_done = done;
 448
 449         return sp;
 450 }
 451
 452 static int
 453 qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 454 {
 455         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 456         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 457         struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
 458         struct qla_hw_data *ha = vha->hw;
 459         srb_t *sp;
 460         int rval;
 461
 462         if (unlikely(pci_channel_offline(ha->pdev))) {
 463                 cmd->result = DID_REQUEUE << 16;
 464                 goto qc_fail_command;
 465         }
 466
 467         rval = fc_remote_port_chkready(rport);
 468         if (rval) {
 469                 cmd->result = rval;
 470                 goto qc_fail_command;
 471         }
 472
 473         /* Close window on fcport/rport state-transitioning. */
 474         if (fcport->drport)
 475                 goto qc_target_busy;
 476
 477         if (atomic_read(&fcport->state) != FCS_ONLINE) {
 478                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
 479                     atomic_read(&vha->loop_state) == LOOP_DEAD) {
 480                         cmd->result = DID_NO_CONNECT << 16;
 481                         goto qc_fail_command;
 482                 }
 483                 goto qc_target_busy;
 484         }
 485
 486         spin_unlock_irq(vha->host->host_lock);
 487
 488         sp = qla2x00_get_new_sp(vha, fcport, cmd, done);
 489         if (!sp)
 490                 goto qc_host_busy_lock;
 491
 492         rval = ha->isp_ops->start_scsi(sp);
 493         if (rval != QLA_SUCCESS)
 494                 goto qc_host_busy_free_sp;
 495
 496         spin_lock_irq(vha->host->host_lock);
 497
 498         return 0;
 499
 500 qc_host_busy_free_sp:
 501         qla2x00_sp_free_dma(sp);
 502         mempool_free(sp, ha->srb_mempool);
 503
 504 qc_host_busy_lock:
 505         spin_lock_irq(vha->host->host_lock);
 506         return SCSI_MLQUEUE_HOST_BUSY;
 507
 508 qc_target_busy:
 509         return SCSI_MLQUEUE_TARGET_BUSY;
 510
 511 qc_fail_command:
 512         done(cmd);
 513
 514         return 0;
 515 }
 516
 517
 518 static int
 519 qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 520 {
 521         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 522         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 523         struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
 524         struct qla_hw_data *ha = vha->hw;
 525         struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
 526         srb_t *sp;
 527         int rval;
 528
 529         if (unlikely(pci_channel_offline(ha->pdev))) {
 530                 cmd->result = DID_REQUEUE << 16;
 531                 goto qc24_fail_command;
 532         }
 533
 534         rval = fc_remote_port_chkready(rport);
 535         if (rval) {
 536                 cmd->result = rval;
 537                 goto qc24_fail_command;
 538         }
 539
 540         /* Close window on fcport/rport state-transitioning. */
 541         if (fcport->drport)
 542                 goto qc24_target_busy;
 543
 544         if (atomic_read(&fcport->state) != FCS_ONLINE) {
 545                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
 546                     atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
 547                         cmd->result = DID_NO_CONNECT << 16;
 548                         goto qc24_fail_command;
 549                 }
 550                 goto qc24_target_busy;
 551         }
 552
 553         spin_unlock_irq(vha->host->host_lock);
 554
 555         sp = qla2x00_get_new_sp(base_vha, fcport, cmd, done);
 556         if (!sp)
 557                 goto qc24_host_busy_lock;
 558
 559         rval = ha->isp_ops->start_scsi(sp);
 560         if (rval != QLA_SUCCESS)
 561                 goto qc24_host_busy_free_sp;
 562
 563         spin_lock_irq(vha->host->host_lock);
 564
 565         return 0;
 566
 567 qc24_host_busy_free_sp:
 568         qla2x00_sp_free_dma(sp);
 569         mempool_free(sp, ha->srb_mempool);
 570
 571 qc24_host_busy_lock:
 572         spin_lock_irq(vha->host->host_lock);
 573         return SCSI_MLQUEUE_HOST_BUSY;
 574
 575 qc24_target_busy:
 576         return SCSI_MLQUEUE_TARGET_BUSY;
 577
 578 qc24_fail_command:
 579         done(cmd);
 580
 581         return 0;
 582 }
 583
 584
 585 /*
 586  * qla2x00_eh_wait_on_command
 587  *    Waits for the command to be returned by the Firmware for some
 588  *    max time.
 589  *
 590  * Input:
 591  *    cmd = Scsi Command to wait on.
 592  *
 593  * Return:
 594  *    Not Found : 0
 595  *    Found : 1
 596  */
 597 static int
 598 qla2x00_eh_wait_on_command(struct scsi_cmnd *cmd)
 599 {
 600 #define ABORT_POLLING_PERIOD    1000
 601 #define ABORT_WAIT_ITER         ((10 * 1000) / (ABORT_POLLING_PERIOD))
 602         unsigned long wait_iter = ABORT_WAIT_ITER;
 603         int ret = QLA_SUCCESS;
 604
 605         while (CMD_SP(cmd)) {
 606                 msleep(ABORT_POLLING_PERIOD);
 607
 608                 if (--wait_iter)
 609                         break;
 610         }
 611         if (CMD_SP(cmd))
 612                 ret = QLA_FUNCTION_FAILED;
 613
 614         return ret;
 615 }
 616
 617 /*
 618  * qla2x00_wait_for_hba_online
 619  *    Wait till the HBA is online after going through
 620  *    <= MAX_RETRIES_OF_ISP_ABORT  or
 621  *    finally HBA is disabled ie marked offline
 622  *
 623  * Input:
 624  *     ha - pointer to host adapter structure
 625  *
 626  * Note:
 627  *    Does context switching-Release SPIN_LOCK
 628  *    (if any) before calling this routine.
 629  *
 630  * Return:
 631  *    Success (Adapter is online) : 0
 632  *    Failed  (Adapter is offline/disabled) : 1
 633  */
 634 int
 635 qla2x00_wait_for_hba_online(scsi_qla_host_t *vha)
 636 {
 637         int             return_status;
 638         unsigned long   wait_online;
 639         struct qla_hw_data *ha = vha->hw;
 640         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 641
 642         wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 643         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 644             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 645             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 646             ha->dpc_active) && time_before(jiffies, wait_online)) {
 647
 648                 msleep(1000);
 649         }
 650         if (base_vha->flags.online)
 651                 return_status = QLA_SUCCESS;
 652         else
 653                 return_status = QLA_FUNCTION_FAILED;
 654
 655         return (return_status);
 656 }
 657
 658 /*
 659  * qla2x00_wait_for_loop_ready
 660  *    Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
 661  *    to be in LOOP_READY state.
 662  * Input:
 663  *     ha - pointer to host adapter structure
 664  *
 665  * Note:
 666  *    Does context switching-Release SPIN_LOCK
 667  *    (if any) before calling this routine.
 668  *
 669  *
 670  * Return:
 671  *    Success (LOOP_READY) : 0
 672  *    Failed  (LOOP_NOT_READY) : 1
 673  */
 674 static inline int
 675 qla2x00_wait_for_loop_ready(scsi_qla_host_t *vha)
 676 {
 677         int      return_status = QLA_SUCCESS;
 678         unsigned long loop_timeout ;
 679         struct qla_hw_data *ha = vha->hw;
 680         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 681
 682         /* wait for 5 min at the max for loop to be ready */
 683         loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 684
 685         while ((!atomic_read(&base_vha->loop_down_timer) &&
 686             atomic_read(&base_vha->loop_state) == LOOP_DOWN) ||
 687             atomic_read(&base_vha->loop_state) != LOOP_READY) {
 688                 if (atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
 689                         return_status = QLA_FUNCTION_FAILED;
 690                         break;
 691                 }
 692                 msleep(1000);
 693                 if (time_after_eq(jiffies, loop_timeout)) {
 694                         return_status = QLA_FUNCTION_FAILED;
 695                         break;
 696                 }
 697         }
 698         return (return_status);
 699 }
 700
 701 void
 702 qla2x00_abort_fcport_cmds(fc_port_t *fcport)
 703 {
 704         int cnt, que, id;
 705         unsigned long flags;
 706         srb_t *sp;
 707         scsi_qla_host_t *vha = fcport->vha;
 708         struct qla_hw_data *ha = vha->hw;
 709         struct req_que *req;
 710
 711         spin_lock_irqsave(&ha->hardware_lock, flags);
 712         for (que = 0; que < QLA_MAX_HOST_QUES; que++) {
 713                 id = vha->req_ques[que];
 714                 req = ha->req_q_map[id];
 715                 if (!req)
 716                         continue;
 717                 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
 718                         sp = req->outstanding_cmds[cnt];
 719                         if (!sp)
 720                                 continue;
 721                         if (sp->fcport != fcport)
 722                                 continue;
 723
 724                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 725                         if (ha->isp_ops->abort_command(vha, sp, req)) {
 726                                 DEBUG2(qla_printk(KERN_WARNING, ha,
 727                                 "Abort failed --  %lx\n",
 728                                 sp->cmd->serial_number));
 729                         } else {
 730                                 if (qla2x00_eh_wait_on_command(sp->cmd) !=
 731                                         QLA_SUCCESS)
 732                                         DEBUG2(qla_printk(KERN_WARNING, ha,
 733                                         "Abort failed while waiting --  %lx\n",
 734                                         sp->cmd->serial_number));
 735                         }
 736                         spin_lock_irqsave(&ha->hardware_lock, flags);
 737                 }
 738         }
 739         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 740 }
 741
 742 static void
 743 qla2x00_block_error_handler(struct scsi_cmnd *cmnd)
 744 {
 745         struct Scsi_Host *shost = cmnd->device->host;
 746         struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
 747         unsigned long flags;
 748
 749         spin_lock_irqsave(shost->host_lock, flags);
 750         while (rport->port_state == FC_PORTSTATE_BLOCKED) {
 751                 spin_unlock_irqrestore(shost->host_lock, flags);
 752                 msleep(1000);
 753                 spin_lock_irqsave(shost->host_lock, flags);
 754         }
 755         spin_unlock_irqrestore(shost->host_lock, flags);
 756         return;
 757 }
 758
 759 /**************************************************************************
 760 * qla2xxx_eh_abort
 761 *
 762 * Description:
 763 *    The abort function will abort the specified command.
 764 *
 765 * Input:
 766 *    cmd = Linux SCSI command packet to be aborted.
 767 *
 768 * Returns:
 769 *    Either SUCCESS or FAILED.
 770 *
 771 * Note:
 772 *    Only return FAILED if command not returned by firmware.
 773 **************************************************************************/
 774 static int
 775 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
 776 {
 777         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 778         srb_t *sp;
 779         int ret, i;
 780         unsigned int id, lun;
 781         unsigned long serial;
 782         unsigned long flags;
 783         int wait = 0;
 784         struct qla_hw_data *ha = vha->hw;
 785         struct req_que *req;
 786         srb_t *spt;
 787
 788         qla2x00_block_error_handler(cmd);
 789
 790         if (!CMD_SP(cmd))
 791                 return SUCCESS;
 792
 793         ret = SUCCESS;
 794
 795         id = cmd->device->id;
 796         lun = cmd->device->lun;
 797         serial = cmd->serial_number;
 798         spt = (srb_t *) CMD_SP(cmd);
 799         if (!spt)
 800                 return SUCCESS;
 801         req = spt->que;
 802
 803         /* Check active list for command command. */
 804         spin_lock_irqsave(&ha->hardware_lock, flags);
 805         for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
 806                 sp = req->outstanding_cmds[i];
 807
 808                 if (sp == NULL)
 809                         continue;
 810
 811                 if (sp->cmd != cmd)
 812                         continue;
 813
 814                 DEBUG2(printk("%s(%ld): aborting sp %p from RISC."
 815                 " pid=%ld.\n", __func__, vha->host_no, sp, serial));
 816
 817                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 818                 if (ha->isp_ops->abort_command(vha, sp, req)) {
 819                         DEBUG2(printk("%s(%ld): abort_command "
 820                         "mbx failed.\n", __func__, vha->host_no));
 821                 } else {
 822                         DEBUG3(printk("%s(%ld): abort_command "
 823                         "mbx success.\n", __func__, vha->host_no));
 824                         wait = 1;
 825                 }
 826                 spin_lock_irqsave(&ha->hardware_lock, flags);
 827                 break;
 828         }
 829         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 830
 831         /* Wait for the command to be returned. */
 832         if (wait) {
 833                 if (qla2x00_eh_wait_on_command(cmd) != QLA_SUCCESS) {
 834                         qla_printk(KERN_ERR, ha,
 835                             "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
 836                             "%x.\n", vha->host_no, id, lun, serial, ret);
 837                         ret = FAILED;
 838                 }
 839         }
 840
 841         qla_printk(KERN_INFO, ha,
 842             "scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n",
 843             vha->host_no, id, lun, wait, serial, ret);
 844
 845         return ret;
 846 }
 847
 848 enum nexus_wait_type {
 849         WAIT_HOST = 0,
 850         WAIT_TARGET,
 851         WAIT_LUN,
 852 };
 853
 854 static int
 855 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *vha, unsigned int t,
 856         unsigned int l, srb_t *sp, enum nexus_wait_type type)
 857 {
 858         int cnt, match, status;
 859         unsigned long flags;
 860         struct qla_hw_data *ha = vha->hw;
 861         struct req_que *req;
 862
 863         status = QLA_SUCCESS;
 864         if (!sp)
 865                 return status;
 866
 867         spin_lock_irqsave(&ha->hardware_lock, flags);
 868         req = sp->que;
 869         for (cnt = 1; status == QLA_SUCCESS &&
 870                 cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
 871                 sp = req->outstanding_cmds[cnt];
 872                 if (!sp)
 873                         continue;
 874
 875                 if (vha->vp_idx != sp->fcport->vha->vp_idx)
 876                         continue;
 877                 match = 0;
 878                 switch (type) {
 879                 case WAIT_HOST:
 880                         match = 1;
 881                         break;
 882                 case WAIT_TARGET:
 883                         match = sp->cmd->device->id == t;
 884                         break;
 885                 case WAIT_LUN:
 886                         match = (sp->cmd->device->id == t &&
 887                                 sp->cmd->device->lun == l);
 888                         break;
 889                 }
 890                 if (!match)
 891                         continue;
 892
 893                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 894                 status = qla2x00_eh_wait_on_command(sp->cmd);
 895                 spin_lock_irqsave(&ha->hardware_lock, flags);
 896         }
 897         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 898
 899         return status;
 900 }
 901
 902 static char *reset_errors[] = {
 903         "HBA not online",
 904         "HBA not ready",
 905         "Task management failed",
 906         "Waiting for command completions",
 907 };
 908
 909 static int
 910 __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
 911     struct scsi_cmnd *cmd, int (*do_reset)(struct fc_port *, unsigned int))
 912 {
 913         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 914         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 915         int err;
 916
 917         qla2x00_block_error_handler(cmd);
 918
 919         if (!fcport)
 920                 return FAILED;
 921
 922         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET ISSUED.\n",
 923             vha->host_no, cmd->device->id, cmd->device->lun, name);
 924
 925         err = 0;
 926         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
 927                 goto eh_reset_failed;
 928         err = 1;
 929         if (qla2x00_wait_for_loop_ready(vha) != QLA_SUCCESS)
 930                 goto eh_reset_failed;
 931         err = 2;
 932         if (do_reset(fcport, cmd->device->lun) != QLA_SUCCESS)
 933                 goto eh_reset_failed;
 934         err = 3;
 935         if (qla2x00_eh_wait_for_pending_commands(vha, cmd->device->id,
 936             cmd->device->lun, (srb_t *) CMD_SP(cmd), type) != QLA_SUCCESS)
 937                 goto eh_reset_failed;
 938
 939         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET SUCCEEDED.\n",
 940             vha->host_no, cmd->device->id, cmd->device->lun, name);
 941
 942         return SUCCESS;
 943
 944  eh_reset_failed:
 945         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET FAILED: %s.\n"
 946             , vha->host_no, cmd->device->id, cmd->device->lun, name,
 947             reset_errors[err]);
 948         return FAILED;
 949 }
 950
 951 static int
 952 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
 953 {
 954         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 955         struct qla_hw_data *ha = vha->hw;
 956
 957         return __qla2xxx_eh_generic_reset("DEVICE", WAIT_LUN, cmd,
 958             ha->isp_ops->lun_reset);
 959 }
 960
 961 static int
 962 qla2xxx_eh_target_reset(struct scsi_cmnd *cmd)
 963 {
 964         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 965         struct qla_hw_data *ha = vha->hw;
 966
 967         return __qla2xxx_eh_generic_reset("TARGET", WAIT_TARGET, cmd,
 968             ha->isp_ops->target_reset);
 969 }
 970
 971 /**************************************************************************
 972 * qla2xxx_eh_bus_reset
 973 *
 974 * Description:
 975 *    The bus reset function will reset the bus and abort any executing
 976 *    commands.
 977 *
 978 * Input:
 979 *    cmd = Linux SCSI command packet of the command that cause the
 980 *          bus reset.
 981 *
 982 * Returns:
 983 *    SUCCESS/FAILURE (defined as macro in scsi.h).
 984 *
 985 **************************************************************************/
 986 static int
 987 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
 988 {
 989         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 990         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 991         int ret = FAILED;
 992         unsigned int id, lun;
 993         unsigned long serial;
 994         srb_t *sp = (srb_t *) CMD_SP(cmd);
 995
 996         qla2x00_block_error_handler(cmd);
 997
 998         id = cmd->device->id;
 999         lun = cmd->device->lun;
1000         serial = cmd->serial_number;
1001
1002         if (!fcport)
1003                 return ret;
1004
1005         qla_printk(KERN_INFO, vha->hw,
1006             "scsi(%ld:%d:%d): BUS RESET ISSUED.\n", vha->host_no, id, lun);
1007
1008         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1009                 DEBUG2(printk("%s failed:board disabled\n",__func__));
1010                 goto eh_bus_reset_done;
1011         }
1012
1013         if (qla2x00_wait_for_loop_ready(vha) == QLA_SUCCESS) {
1014                 if (qla2x00_loop_reset(vha) == QLA_SUCCESS)
1015                         ret = SUCCESS;
1016         }
1017         if (ret == FAILED)
1018                 goto eh_bus_reset_done;
1019
1020         /* Flush outstanding commands. */
1021         if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, sp, WAIT_HOST) !=
1022             QLA_SUCCESS)
1023                 ret = FAILED;
1024
1025 eh_bus_reset_done:
1026         qla_printk(KERN_INFO, vha->hw, "%s: reset %s\n", __func__,
1027             (ret == FAILED) ? "failed" : "succeded");
1028
1029         return ret;
1030 }
1031
1032 /**************************************************************************
1033 * qla2xxx_eh_host_reset
1034 *
1035 * Description:
1036 *    The reset function will reset the Adapter.
1037 *
1038 * Input:
1039 *      cmd = Linux SCSI command packet of the command that cause the
1040 *            adapter reset.
1041 *
1042 * Returns:
1043 *      Either SUCCESS or FAILED.
1044 *
1045 * Note:
1046 **************************************************************************/
1047 static int
1048 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
1049 {
1050         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1051         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1052         struct qla_hw_data *ha = vha->hw;
1053         int ret = FAILED;
1054         unsigned int id, lun;
1055         unsigned long serial;
1056         srb_t *sp = (srb_t *) CMD_SP(cmd);
1057         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1058
1059         qla2x00_block_error_handler(cmd);
1060
1061         id = cmd->device->id;
1062         lun = cmd->device->lun;
1063         serial = cmd->serial_number;
1064
1065         if (!fcport)
1066                 return ret;
1067
1068         qla_printk(KERN_INFO, ha,
1069             "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", vha->host_no, id, lun);
1070
1071         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
1072                 goto eh_host_reset_lock;
1073
1074         /*
1075          * Fixme-may be dpc thread is active and processing
1076          * loop_resync,so wait a while for it to
1077          * be completed and then issue big hammer.Otherwise
1078          * it may cause I/O failure as big hammer marks the
1079          * devices as lost kicking of the port_down_timer
1080          * while dpc is stuck for the mailbox to complete.
1081          */
1082         qla2x00_wait_for_loop_ready(vha);
1083         if (vha != base_vha) {
1084                 if (qla2x00_vp_abort_isp(vha))
1085                         goto eh_host_reset_lock;
1086         } else {
1087                 set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1088                 if (qla2x00_abort_isp(base_vha)) {
1089                         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1090                         /* failed. schedule dpc to try */
1091                         set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags);
1092
1093                         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
1094                                 goto eh_host_reset_lock;
1095                 }
1096                 clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1097         }
1098
1099         /* Waiting for command to be returned to OS.*/
1100         if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, sp, WAIT_HOST) ==
1101                 QLA_SUCCESS)
1102                 ret = SUCCESS;
1103
1104 eh_host_reset_lock:
1105         qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
1106             (ret == FAILED) ? "failed" : "succeded");
1107
1108         return ret;
1109 }
1110
1111 /*
1112 * qla2x00_loop_reset
1113 *      Issue loop reset.
1114 *
1115 * Input:
1116 *      ha = adapter block pointer.
1117 *
1118 * Returns:
1119 *      0 = success
1120 */
1121 int
1122 qla2x00_loop_reset(scsi_qla_host_t *vha)
1123 {
1124         int ret;
1125         struct fc_port *fcport;
1126         struct qla_hw_data *ha = vha->hw;
1127
1128         if (ha->flags.enable_lip_full_login && !vha->vp_idx) {
1129                 ret = qla2x00_full_login_lip(vha);
1130                 if (ret != QLA_SUCCESS) {
1131                         DEBUG2_3(printk("%s(%ld): failed: "
1132                             "full_login_lip=%d.\n", __func__, vha->host_no,
1133                             ret));
1134                 }
1135                 atomic_set(&vha->loop_state, LOOP_DOWN);
1136                 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1137                 qla2x00_mark_all_devices_lost(vha, 0);
1138                 qla2x00_wait_for_loop_ready(vha);
1139         }
1140
1141         if (ha->flags.enable_lip_reset && !vha->vp_idx) {
1142                 ret = qla2x00_lip_reset(vha);
1143                 if (ret != QLA_SUCCESS) {
1144                         DEBUG2_3(printk("%s(%ld): failed: "
1145                             "lip_reset=%d.\n", __func__, vha->host_no, ret));
1146                 } else
1147                         qla2x00_wait_for_loop_ready(vha);
1148         }
1149
1150         if (ha->flags.enable_target_reset) {
1151                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
1152                         if (fcport->port_type != FCT_TARGET)
1153                                 continue;
1154
1155                         ret = ha->isp_ops->target_reset(fcport, 0);
1156                         if (ret != QLA_SUCCESS) {
1157                                 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1158                                     "target_reset=%d d_id=%x.\n", __func__,
1159                                     vha->host_no, ret, fcport->d_id.b24));
1160                         }
1161                 }
1162         }
1163         /* Issue marker command only when we are going to start the I/O */
1164         vha->marker_needed = 1;
1165
1166         return QLA_SUCCESS;
1167 }
1168
1169 void
1170 qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res)
1171 {
1172         int que, cnt;
1173         unsigned long flags;
1174         srb_t *sp;
1175         struct qla_hw_data *ha = vha->hw;
1176         struct req_que *req;
1177
1178         spin_lock_irqsave(&ha->hardware_lock, flags);
1179         for (que = 0; que < QLA_MAX_HOST_QUES; que++) {
1180                 req = ha->req_q_map[vha->req_ques[que]];
1181                 if (!req)
1182                         continue;
1183                 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
1184                         sp = req->outstanding_cmds[cnt];
1185                         if (sp && sp->vha == vha) {
1186                                 req->outstanding_cmds[cnt] = NULL;
1187                                 sp->cmd->result = res;
1188                                 qla2x00_sp_compl(ha, sp);
1189                         }
1190                 }
1191         }
1192         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1193 }
1194
1195 static int
1196 qla2xxx_slave_alloc(struct scsi_device *sdev)
1197 {
1198         struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1199
1200         if (!rport || fc_remote_port_chkready(rport))
1201                 return -ENXIO;
1202
1203         sdev->hostdata = *(fc_port_t **)rport->dd_data;
1204
1205         return 0;
1206 }
1207
1208 static int
1209 qla2xxx_slave_configure(struct scsi_device *sdev)
1210 {
1211         scsi_qla_host_t *vha = shost_priv(sdev->host);
1212         struct qla_hw_data *ha = vha->hw;
1213         struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1214         struct req_que *req = ha->req_q_map[0];
1215
1216         if (sdev->tagged_supported)
1217                 scsi_activate_tcq(sdev, req->max_q_depth);
1218         else
1219                 scsi_deactivate_tcq(sdev, req->max_q_depth);
1220
1221         rport->dev_loss_tmo = ha->port_down_retry_count;
1222
1223         return 0;
1224 }
1225
1226 static void
1227 qla2xxx_slave_destroy(struct scsi_device *sdev)
1228 {
1229         sdev->hostdata = NULL;
1230 }
1231
1232 static int
1233 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1234 {
1235         scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1236         return sdev->queue_depth;
1237 }
1238
1239 static int
1240 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1241 {
1242         if (sdev->tagged_supported) {
1243                 scsi_set_tag_type(sdev, tag_type);
1244                 if (tag_type)
1245                         scsi_activate_tcq(sdev, sdev->queue_depth);
1246                 else
1247                         scsi_deactivate_tcq(sdev, sdev->queue_depth);
1248         } else
1249                 tag_type = 0;
1250
1251         return tag_type;
1252 }
1253
1254 /**
1255  * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1256  * @ha: HA context
1257  *
1258  * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1259  * supported addressing method.
1260  */
1261 static void
1262 qla2x00_config_dma_addressing(scsi_qla_host_t *vha)
1263 {
1264         struct qla_hw_data *ha = vha->hw;
1265         /* Assume a 32bit DMA mask. */
1266         ha->flags.enable_64bit_addressing = 0;
1267
1268         if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1269                 /* Any upper-dword bits set? */
1270                 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1271                     !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1272                         /* Ok, a 64bit DMA mask is applicable. */
1273                         ha->flags.enable_64bit_addressing = 1;
1274                         ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1275                         ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1276                         return;
1277                 }
1278         }
1279
1280         dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1281         pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
1282 }
1283
1284 static void
1285 qla2x00_enable_intrs(struct qla_hw_data *ha)
1286 {
1287         unsigned long flags = 0;
1288         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1289
1290         spin_lock_irqsave(&ha->hardware_lock, flags);
1291         ha->interrupts_on = 1;
1292         /* enable risc and host interrupts */
1293         WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1294         RD_REG_WORD(&reg->ictrl);
1295         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1296
1297 }
1298
1299 static void
1300 qla2x00_disable_intrs(struct qla_hw_data *ha)
1301 {
1302         unsigned long flags = 0;
1303         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1304
1305         spin_lock_irqsave(&ha->hardware_lock, flags);
1306         ha->interrupts_on = 0;
1307         /* disable risc and host interrupts */
1308         WRT_REG_WORD(&reg->ictrl, 0);
1309         RD_REG_WORD(&reg->ictrl);
1310         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1311 }
1312
1313 static void
1314 qla24xx_enable_intrs(struct qla_hw_data *ha)
1315 {
1316         unsigned long flags = 0;
1317         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1318
1319         spin_lock_irqsave(&ha->hardware_lock, flags);
1320         ha->interrupts_on = 1;
1321         WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1322         RD_REG_DWORD(&reg->ictrl);
1323         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1324 }
1325
1326 static void
1327 qla24xx_disable_intrs(struct qla_hw_data *ha)
1328 {
1329         unsigned long flags = 0;
1330         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1331
1332         spin_lock_irqsave(&ha->hardware_lock, flags);
1333         ha->interrupts_on = 0;
1334         WRT_REG_DWORD(&reg->ictrl, 0);
1335         RD_REG_DWORD(&reg->ictrl);
1336         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1337 }
1338
1339 static struct isp_operations qla2100_isp_ops = {
1340         .pci_config             = qla2100_pci_config,
1341         .reset_chip             = qla2x00_reset_chip,
1342         .chip_diag              = qla2x00_chip_diag,
1343         .config_rings           = qla2x00_config_rings,
1344         .reset_adapter          = qla2x00_reset_adapter,
1345         .nvram_config           = qla2x00_nvram_config,
1346         .update_fw_options      = qla2x00_update_fw_options,
1347         .load_risc              = qla2x00_load_risc,
1348         .pci_info_str           = qla2x00_pci_info_str,
1349         .fw_version_str         = qla2x00_fw_version_str,
1350         .intr_handler           = qla2100_intr_handler,
1351         .enable_intrs           = qla2x00_enable_intrs,
1352         .disable_intrs          = qla2x00_disable_intrs,
1353         .abort_command          = qla2x00_abort_command,
1354         .target_reset           = qla2x00_abort_target,
1355         .lun_reset              = qla2x00_lun_reset,
1356         .fabric_login           = qla2x00_login_fabric,
1357         .fabric_logout          = qla2x00_fabric_logout,
1358         .calc_req_entries       = qla2x00_calc_iocbs_32,
1359         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1360         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1361         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1362         .read_nvram             = qla2x00_read_nvram_data,
1363         .write_nvram            = qla2x00_write_nvram_data,
1364         .fw_dump                = qla2100_fw_dump,
1365         .beacon_on              = NULL,
1366         .beacon_off             = NULL,
1367         .beacon_blink           = NULL,
1368         .read_optrom            = qla2x00_read_optrom_data,
1369         .write_optrom           = qla2x00_write_optrom_data,
1370         .get_flash_version      = qla2x00_get_flash_version,
1371         .start_scsi             = qla2x00_start_scsi,
1372         .wrt_req_reg            = NULL,
1373         .wrt_rsp_reg            = NULL,
1374         .rd_req_reg             = NULL,
1375 };
1376
1377 static struct isp_operations qla2300_isp_ops = {
1378         .pci_config             = qla2300_pci_config,
1379         .reset_chip             = qla2x00_reset_chip,
1380         .chip_diag              = qla2x00_chip_diag,
1381         .config_rings           = qla2x00_config_rings,
1382         .reset_adapter          = qla2x00_reset_adapter,
1383         .nvram_config           = qla2x00_nvram_config,
1384         .update_fw_options      = qla2x00_update_fw_options,
1385         .load_risc              = qla2x00_load_risc,
1386         .pci_info_str           = qla2x00_pci_info_str,
1387         .fw_version_str         = qla2x00_fw_version_str,
1388         .intr_handler           = qla2300_intr_handler,
1389         .enable_intrs           = qla2x00_enable_intrs,
1390         .disable_intrs          = qla2x00_disable_intrs,
1391         .abort_command          = qla2x00_abort_command,
1392         .target_reset           = qla2x00_abort_target,
1393         .lun_reset              = qla2x00_lun_reset,
1394         .fabric_login           = qla2x00_login_fabric,
1395         .fabric_logout          = qla2x00_fabric_logout,
1396         .calc_req_entries       = qla2x00_calc_iocbs_32,
1397         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1398         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1399         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1400         .read_nvram             = qla2x00_read_nvram_data,
1401         .write_nvram            = qla2x00_write_nvram_data,
1402         .fw_dump                = qla2300_fw_dump,
1403         .beacon_on              = qla2x00_beacon_on,
1404         .beacon_off             = qla2x00_beacon_off,
1405         .beacon_blink           = qla2x00_beacon_blink,
1406         .read_optrom            = qla2x00_read_optrom_data,
1407         .write_optrom           = qla2x00_write_optrom_data,
1408         .get_flash_version      = qla2x00_get_flash_version,
1409         .start_scsi             = qla2x00_start_scsi,
1410         .wrt_req_reg            = NULL,
1411         .wrt_rsp_reg            = NULL,
1412         .rd_req_reg             = NULL,
1413 };
1414
1415 static struct isp_operations qla24xx_isp_ops = {
1416         .pci_config             = qla24xx_pci_config,
1417         .reset_chip             = qla24xx_reset_chip,
1418         .chip_diag              = qla24xx_chip_diag,
1419         .config_rings           = qla24xx_config_rings,
1420         .reset_adapter          = qla24xx_reset_adapter,
1421         .nvram_config           = qla24xx_nvram_config,
1422         .update_fw_options      = qla24xx_update_fw_options,
1423         .load_risc              = qla24xx_load_risc,
1424         .pci_info_str           = qla24xx_pci_info_str,
1425         .fw_version_str         = qla24xx_fw_version_str,
1426         .intr_handler           = qla24xx_intr_handler,
1427         .enable_intrs           = qla24xx_enable_intrs,
1428         .disable_intrs          = qla24xx_disable_intrs,
1429         .abort_command          = qla24xx_abort_command,
1430         .target_reset           = qla24xx_abort_target,
1431         .lun_reset              = qla24xx_lun_reset,
1432         .fabric_login           = qla24xx_login_fabric,
1433         .fabric_logout          = qla24xx_fabric_logout,
1434         .calc_req_entries       = NULL,
1435         .build_iocbs            = NULL,
1436         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1437         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1438         .read_nvram             = qla24xx_read_nvram_data,
1439         .write_nvram            = qla24xx_write_nvram_data,
1440         .fw_dump                = qla24xx_fw_dump,
1441         .beacon_on              = qla24xx_beacon_on,
1442         .beacon_off             = qla24xx_beacon_off,
1443         .beacon_blink           = qla24xx_beacon_blink,
1444         .read_optrom            = qla24xx_read_optrom_data,
1445         .write_optrom           = qla24xx_write_optrom_data,
1446         .get_flash_version      = qla24xx_get_flash_version,
1447         .start_scsi             = qla24xx_start_scsi,
1448         .wrt_req_reg            = qla24xx_wrt_req_reg,
1449         .wrt_rsp_reg            = qla24xx_wrt_rsp_reg,
1450         .rd_req_reg             = qla24xx_rd_req_reg,
1451 };
1452
1453 static struct isp_operations qla25xx_isp_ops = {
1454         .pci_config             = qla25xx_pci_config,
1455         .reset_chip             = qla24xx_reset_chip,
1456         .chip_diag              = qla24xx_chip_diag,
1457         .config_rings           = qla24xx_config_rings,
1458         .reset_adapter          = qla24xx_reset_adapter,
1459         .nvram_config           = qla24xx_nvram_config,
1460         .update_fw_options      = qla24xx_update_fw_options,
1461         .load_risc              = qla24xx_load_risc,
1462         .pci_info_str           = qla24xx_pci_info_str,
1463         .fw_version_str         = qla24xx_fw_version_str,
1464         .intr_handler           = qla24xx_intr_handler,
1465         .enable_intrs           = qla24xx_enable_intrs,
1466         .disable_intrs          = qla24xx_disable_intrs,
1467         .abort_command          = qla24xx_abort_command,
1468         .target_reset           = qla24xx_abort_target,
1469         .lun_reset              = qla24xx_lun_reset,
1470         .fabric_login           = qla24xx_login_fabric,
1471         .fabric_logout          = qla24xx_fabric_logout,
1472         .calc_req_entries       = NULL,
1473         .build_iocbs            = NULL,
1474         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1475         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1476         .read_nvram             = qla25xx_read_nvram_data,
1477         .write_nvram            = qla25xx_write_nvram_data,
1478         .fw_dump                = qla25xx_fw_dump,
1479         .beacon_on              = qla24xx_beacon_on,
1480         .beacon_off             = qla24xx_beacon_off,
1481         .beacon_blink           = qla24xx_beacon_blink,
1482         .read_optrom            = qla25xx_read_optrom_data,
1483         .write_optrom           = qla24xx_write_optrom_data,
1484         .get_flash_version      = qla24xx_get_flash_version,
1485         .start_scsi             = qla24xx_start_scsi,
1486         .wrt_req_reg            = qla24xx_wrt_req_reg,
1487         .wrt_rsp_reg            = qla24xx_wrt_rsp_reg,
1488         .rd_req_reg             = qla24xx_rd_req_reg,
1489 };
1490
1491 static inline void
1492 qla2x00_set_isp_flags(struct qla_hw_data *ha)
1493 {
1494         ha->device_type = DT_EXTENDED_IDS;
1495         switch (ha->pdev->device) {
1496         case PCI_DEVICE_ID_QLOGIC_ISP2100:
1497                 ha->device_type |= DT_ISP2100;
1498                 ha->device_type &= ~DT_EXTENDED_IDS;
1499                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1500                 break;
1501         case PCI_DEVICE_ID_QLOGIC_ISP2200:
1502                 ha->device_type |= DT_ISP2200;
1503                 ha->device_type &= ~DT_EXTENDED_IDS;
1504                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1505                 break;
1506         case PCI_DEVICE_ID_QLOGIC_ISP2300:
1507                 ha->device_type |= DT_ISP2300;
1508                 ha->device_type |= DT_ZIO_SUPPORTED;
1509                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1510                 break;
1511         case PCI_DEVICE_ID_QLOGIC_ISP2312:
1512                 ha->device_type |= DT_ISP2312;
1513                 ha->device_type |= DT_ZIO_SUPPORTED;
1514                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1515                 break;
1516         case PCI_DEVICE_ID_QLOGIC_ISP2322:
1517                 ha->device_type |= DT_ISP2322;
1518                 ha->device_type |= DT_ZIO_SUPPORTED;
1519                 if (ha->pdev->subsystem_vendor == 0x1028 &&
1520                     ha->pdev->subsystem_device == 0x0170)
1521                         ha->device_type |= DT_OEM_001;
1522                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1523                 break;
1524         case PCI_DEVICE_ID_QLOGIC_ISP6312:
1525                 ha->device_type |= DT_ISP6312;
1526                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1527                 break;
1528         case PCI_DEVICE_ID_QLOGIC_ISP6322:
1529                 ha->device_type |= DT_ISP6322;
1530                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1531                 break;
1532         case PCI_DEVICE_ID_QLOGIC_ISP2422:
1533                 ha->device_type |= DT_ISP2422;
1534                 ha->device_type |= DT_ZIO_SUPPORTED;
1535                 ha->device_type |= DT_FWI2;
1536                 ha->device_type |= DT_IIDMA;
1537                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1538                 break;
1539         case PCI_DEVICE_ID_QLOGIC_ISP2432:
1540                 ha->device_type |= DT_ISP2432;
1541                 ha->device_type |= DT_ZIO_SUPPORTED;
1542                 ha->device_type |= DT_FWI2;
1543                 ha->device_type |= DT_IIDMA;
1544                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1545                 break;
1546         case PCI_DEVICE_ID_QLOGIC_ISP8432:
1547                 ha->device_type |= DT_ISP8432;
1548                 ha->device_type |= DT_ZIO_SUPPORTED;
1549                 ha->device_type |= DT_FWI2;
1550                 ha->device_type |= DT_IIDMA;
1551                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1552                 break;
1553         case PCI_DEVICE_ID_QLOGIC_ISP5422:
1554                 ha->device_type |= DT_ISP5422;
1555                 ha->device_type |= DT_FWI2;
1556                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1557                 break;
1558         case PCI_DEVICE_ID_QLOGIC_ISP5432:
1559                 ha->device_type |= DT_ISP5432;
1560                 ha->device_type |= DT_FWI2;
1561                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1562                 break;
1563         case PCI_DEVICE_ID_QLOGIC_ISP2532:
1564                 ha->device_type |= DT_ISP2532;
1565                 ha->device_type |= DT_ZIO_SUPPORTED;
1566                 ha->device_type |= DT_FWI2;
1567                 ha->device_type |= DT_IIDMA;
1568                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1569                 break;
1570         }
1571 }
1572
1573 static int
1574 qla2x00_iospace_config(struct qla_hw_data *ha)
1575 {
1576         resource_size_t pio;
1577         uint16_t msix;
1578
1579         if (pci_request_selected_regions(ha->pdev, ha->bars,
1580             QLA2XXX_DRIVER_NAME)) {
1581                 qla_printk(KERN_WARNING, ha,
1582                     "Failed to reserve PIO/MMIO regions (%s)\n",
1583                     pci_name(ha->pdev));
1584
1585                 goto iospace_error_exit;
1586         }
1587         if (!(ha->bars & 1))
1588                 goto skip_pio;
1589
1590         /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1591         pio = pci_resource_start(ha->pdev, 0);
1592         if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
1593                 if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1594                         qla_printk(KERN_WARNING, ha,
1595                             "Invalid PCI I/O region size (%s)...\n",
1596                                 pci_name(ha->pdev));
1597                         pio = 0;
1598                 }
1599         } else {
1600                 qla_printk(KERN_WARNING, ha,
1601                     "region #0 not a PIO resource (%s)...\n",
1602                     pci_name(ha->pdev));
1603                 pio = 0;
1604         }
1605         ha->pio_address = pio;
1606
1607 skip_pio:
1608         /* Use MMIO operations for all accesses. */
1609         if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
1610                 qla_printk(KERN_ERR, ha,
1611                     "region #1 not an MMIO resource (%s), aborting\n",
1612                     pci_name(ha->pdev));
1613                 goto iospace_error_exit;
1614         }
1615         if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
1616                 qla_printk(KERN_ERR, ha,
1617                     "Invalid PCI mem region size (%s), aborting\n",
1618                         pci_name(ha->pdev));
1619                 goto iospace_error_exit;
1620         }
1621
1622         ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
1623         if (!ha->iobase) {
1624                 qla_printk(KERN_ERR, ha,
1625                     "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1626
1627                 goto iospace_error_exit;
1628         }
1629
1630         /* Determine queue resources */
1631         ha->max_queues = 1;
1632         if (ql2xmaxqueues <= 1 || !IS_QLA25XX(ha))
1633                 goto mqiobase_exit;
1634         ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 3),
1635                         pci_resource_len(ha->pdev, 3));
1636         if (ha->mqiobase) {
1637                 /* Read MSIX vector size of the board */
1638                 pci_read_config_word(ha->pdev, QLA_PCI_MSIX_CONTROL, &msix);
1639                 ha->msix_count = msix;
1640                 /* Max queues are bounded by available msix vectors */
1641                 /* queue 0 uses two msix vectors */
1642                 if (ha->msix_count - 1 < ql2xmaxqueues)
1643                         ha->max_queues = ha->msix_count - 1;
1644                 else if (ql2xmaxqueues > QLA_MQ_SIZE)
1645                         ha->max_queues = QLA_MQ_SIZE;
1646                 else
1647                         ha->max_queues = ql2xmaxqueues;
1648                 qla_printk(KERN_INFO, ha,
1649                         "MSI-X vector count: %d\n", msix);
1650         }
1651
1652 mqiobase_exit:
1653         ha->msix_count = ha->max_queues + 1;
1654         return (0);
1655
1656 iospace_error_exit:
1657         return (-ENOMEM);
1658 }
1659
1660 static void
1661 qla2xxx_scan_start(struct Scsi_Host *shost)
1662 {
1663         scsi_qla_host_t *vha = shost_priv(shost);
1664
1665         set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1666         set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1667         set_bit(RSCN_UPDATE, &vha->dpc_flags);
1668         set_bit(NPIV_CONFIG_NEEDED, &vha->dpc_flags);
1669 }
1670
1671 static int
1672 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1673 {
1674         scsi_qla_host_t *vha = shost_priv(shost);
1675
1676         if (!vha->host)
1677                 return 1;
1678         if (time > vha->hw->loop_reset_delay * HZ)
1679                 return 1;
1680
1681         return atomic_read(&vha->loop_state) == LOOP_READY;
1682 }
1683
1684 /*
1685  * PCI driver interface
1686  */
1687 static int __devinit
1688 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1689 {
1690         int     ret = -ENODEV;
1691         struct Scsi_Host *host;
1692         scsi_qla_host_t *base_vha = NULL;
1693         struct qla_hw_data *ha;
1694         char pci_info[30];
1695         char fw_str[30];
1696         struct scsi_host_template *sht;
1697         int bars, max_id, mem_only = 0;
1698         uint16_t req_length = 0, rsp_length = 0;
1699         struct req_que *req = NULL;
1700         struct rsp_que *rsp = NULL;
1701
1702         bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
1703         sht = &qla2x00_driver_template;
1704         if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1705             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1706             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8432 ||
1707             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1708             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
1709             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532) {
1710                 bars = pci_select_bars(pdev, IORESOURCE_MEM);
1711                 sht = &qla24xx_driver_template;
1712                 mem_only = 1;
1713         }
1714
1715         if (mem_only) {
1716                 if (pci_enable_device_mem(pdev))
1717                         goto probe_out;
1718         } else {
1719                 if (pci_enable_device(pdev))
1720                         goto probe_out;
1721         }
1722
1723         /* This may fail but that's ok */
1724         pci_enable_pcie_error_reporting(pdev);
1725
1726         ha = kzalloc(sizeof(struct qla_hw_data), GFP_KERNEL);
1727         if (!ha) {
1728                 DEBUG(printk("Unable to allocate memory for ha\n"));
1729                 goto probe_out;
1730         }
1731         ha->pdev = pdev;
1732
1733         /* Clear our data area */
1734         ha->bars = bars;
1735         ha->mem_only = mem_only;
1736         spin_lock_init(&ha->hardware_lock);
1737
1738         /* Set ISP-type information. */
1739         qla2x00_set_isp_flags(ha);
1740         /* Configure PCI I/O space */
1741         ret = qla2x00_iospace_config(ha);
1742         if (ret)
1743                 goto probe_hw_failed;
1744
1745         qla_printk(KERN_INFO, ha,
1746             "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1747             ha->iobase);
1748
1749         ha->prev_topology = 0;
1750         ha->init_cb_size = sizeof(init_cb_t);
1751         ha->link_data_rate = PORT_SPEED_UNKNOWN;
1752         ha->optrom_size = OPTROM_SIZE_2300;
1753
1754         /* Assign ISP specific operations. */
1755         max_id = MAX_TARGETS_2200;
1756         if (IS_QLA2100(ha)) {
1757                 max_id = MAX_TARGETS_2100;
1758                 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1759                 req_length = REQUEST_ENTRY_CNT_2100;
1760                 rsp_length = RESPONSE_ENTRY_CNT_2100;
1761                 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
1762                 ha->gid_list_info_size = 4;
1763                 ha->isp_ops = &qla2100_isp_ops;
1764         } else if (IS_QLA2200(ha)) {
1765                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1766                 req_length = REQUEST_ENTRY_CNT_2200;
1767                 rsp_length = RESPONSE_ENTRY_CNT_2100;
1768                 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
1769                 ha->gid_list_info_size = 4;
1770                 ha->isp_ops = &qla2100_isp_ops;
1771         } else if (IS_QLA23XX(ha)) {
1772                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1773                 req_length = REQUEST_ENTRY_CNT_2200;
1774                 rsp_length = RESPONSE_ENTRY_CNT_2300;
1775                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
1776                 ha->gid_list_info_size = 6;
1777                 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1778                         ha->optrom_size = OPTROM_SIZE_2322;
1779                 ha->isp_ops = &qla2300_isp_ops;
1780         } else if (IS_QLA24XX_TYPE(ha)) {
1781                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1782                 req_length = REQUEST_ENTRY_CNT_24XX;
1783                 rsp_length = RESPONSE_ENTRY_CNT_2300;
1784                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
1785                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1786                 ha->gid_list_info_size = 8;
1787                 ha->optrom_size = OPTROM_SIZE_24XX;
1788                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA24XX;
1789                 ha->isp_ops = &qla24xx_isp_ops;
1790         } else if (IS_QLA25XX(ha)) {
1791                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1792                 req_length = REQUEST_ENTRY_CNT_24XX;
1793                 rsp_length = RESPONSE_ENTRY_CNT_2300;
1794                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
1795                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1796                 ha->gid_list_info_size = 8;
1797                 ha->optrom_size = OPTROM_SIZE_25XX;
1798                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
1799                 ha->isp_ops = &qla25xx_isp_ops;
1800         }
1801
1802         mutex_init(&ha->vport_lock);
1803         init_completion(&ha->mbx_cmd_comp);
1804         complete(&ha->mbx_cmd_comp);
1805         init_completion(&ha->mbx_intr_comp);
1806
1807         set_bit(0, (unsigned long *) ha->vp_idx_map);
1808
1809         ret = qla2x00_mem_alloc(ha, req_length, rsp_length, &req, &rsp);
1810         if (!ret) {
1811                 qla_printk(KERN_WARNING, ha,
1812                     "[ERROR] Failed to allocate memory for adapter\n");
1813
1814                 goto probe_hw_failed;
1815         }
1816
1817         req->max_q_depth = MAX_Q_DEPTH;
1818         if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
1819                 req->max_q_depth = ql2xmaxqdepth;
1820
1821
1822         base_vha = qla2x00_create_host(sht, ha);
1823         if (!base_vha) {
1824                 qla_printk(KERN_WARNING, ha,
1825                     "[ERROR] Failed to allocate memory for scsi_host\n");
1826
1827                 ret = -ENOMEM;
1828                 goto probe_hw_failed;
1829         }
1830
1831         pci_set_drvdata(pdev, base_vha);
1832
1833         qla2x00_config_dma_addressing(base_vha);
1834
1835         host = base_vha->host;
1836         base_vha->req_ques[0] = req->id;
1837         host->can_queue = req->length + 128;
1838         if (IS_QLA2XXX_MIDTYPE(ha))
1839                 base_vha->mgmt_svr_loop_id = 10 + base_vha->vp_idx;
1840         else
1841                 base_vha->mgmt_svr_loop_id = MANAGEMENT_SERVER +
1842                                                 base_vha->vp_idx;
1843         if (IS_QLA2100(ha))
1844                 host->sg_tablesize = 32;
1845         host->max_id = max_id;
1846         host->this_id = 255;
1847         host->cmd_per_lun = 3;
1848         host->unique_id = host->host_no;
1849         host->max_cmd_len = MAX_CMDSZ;
1850         host->max_channel = MAX_BUSES - 1;
1851         host->max_lun = MAX_LUNS;
1852         host->transportt = qla2xxx_transport_template;
1853
1854         /* Set up the irqs */
1855         ret = qla2x00_request_irqs(ha, rsp);
1856         if (ret)
1857                 goto probe_failed;
1858
1859         /* Alloc arrays of request and response ring ptrs */
1860         if (!qla2x00_alloc_queues(ha)) {
1861                 qla_printk(KERN_WARNING, ha,
1862                 "[ERROR] Failed to allocate memory for queue"
1863                 " pointers\n");
1864                 goto probe_failed;
1865         }
1866         ha->rsp_q_map[0] = rsp;
1867         ha->req_q_map[0] = req;
1868
1869         if (ha->mqenable) {
1870                 ha->isp_ops->wrt_req_reg = qla25xx_wrt_req_reg;
1871                 ha->isp_ops->wrt_rsp_reg = qla25xx_wrt_rsp_reg;
1872                 ha->isp_ops->rd_req_reg = qla25xx_rd_req_reg;
1873         }
1874
1875         if (qla2x00_initialize_adapter(base_vha)) {
1876                 qla_printk(KERN_WARNING, ha,
1877                     "Failed to initialize adapter\n");
1878
1879                 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1880                     "Adapter flags %x.\n",
1881                     base_vha->host_no, base_vha->device_flags));
1882
1883                 ret = -ENODEV;
1884                 goto probe_failed;
1885         }
1886
1887         /*
1888          * Startup the kernel thread for this host adapter
1889          */
1890         ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
1891                         "%s_dpc", base_vha->host_str);
1892         if (IS_ERR(ha->dpc_thread)) {
1893                 qla_printk(KERN_WARNING, ha,
1894                     "Unable to start DPC thread!\n");
1895                 ret = PTR_ERR(ha->dpc_thread);
1896                 goto probe_failed;
1897         }
1898
1899         list_add_tail(&base_vha->list, &ha->vp_list);
1900         base_vha->host->irq = ha->pdev->irq;
1901
1902         /* Initialized the timer */
1903         qla2x00_start_timer(base_vha, qla2x00_timer, WATCH_INTERVAL);
1904
1905         DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1906             base_vha->host_no, ha));
1907
1908         base_vha->flags.init_done = 1;
1909         base_vha->flags.online = 1;
1910
1911         ret = scsi_add_host(host, &pdev->dev);
1912         if (ret)
1913                 goto probe_failed;
1914
1915         ha->isp_ops->enable_intrs(ha);
1916
1917         scsi_scan_host(host);
1918
1919         qla2x00_alloc_sysfs_attr(base_vha);
1920
1921         qla2x00_init_host_attr(base_vha);
1922
1923         qla2x00_dfs_setup(base_vha);
1924
1925         qla_printk(KERN_INFO, ha, "\n"
1926             " QLogic Fibre Channel HBA Driver: %s\n"
1927             "  QLogic %s - %s\n"
1928             "  ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1929             qla2x00_version_str, ha->model_number,
1930             ha->model_desc ? ha->model_desc : "", pdev->device,
1931             ha->isp_ops->pci_info_str(base_vha, pci_info), pci_name(pdev),
1932             ha->flags.enable_64bit_addressing ? '+' : '-', base_vha->host_no,
1933             ha->isp_ops->fw_version_str(base_vha, fw_str));
1934
1935         return 0;
1936
1937 probe_failed:
1938         qla2x00_free_que(ha, req, rsp);
1939         qla2x00_free_device(base_vha);
1940
1941         scsi_host_put(base_vha->host);
1942
1943 probe_hw_failed:
1944         if (ha->iobase)
1945                 iounmap(ha->iobase);
1946
1947         pci_release_selected_regions(ha->pdev, ha->bars);
1948         kfree(ha);
1949         ha = NULL;
1950
1951 probe_out:
1952         pci_disable_device(pdev);
1953         return ret;
1954 }
1955
1956 static void
1957 qla2x00_remove_one(struct pci_dev *pdev)
1958 {
1959         scsi_qla_host_t *base_vha, *vha, *temp;
1960         struct qla_hw_data  *ha;
1961
1962         base_vha = pci_get_drvdata(pdev);
1963         ha = base_vha->hw;
1964
1965         list_for_each_entry_safe(vha, temp, &ha->vp_list, list) {
1966                 if (vha && vha->fc_vport)
1967                         fc_vport_terminate(vha->fc_vport);
1968         }
1969
1970         set_bit(UNLOADING, &base_vha->dpc_flags);
1971
1972         qla2x00_dfs_remove(base_vha);
1973
1974         qla84xx_put_chip(base_vha);
1975
1976         qla2x00_free_sysfs_attr(base_vha);
1977
1978         fc_remove_host(base_vha->host);
1979
1980         scsi_remove_host(base_vha->host);
1981
1982         qla2x00_free_device(base_vha);
1983
1984         scsi_host_put(base_vha->host);
1985
1986         if (ha->iobase)
1987                 iounmap(ha->iobase);
1988
1989         if (ha->mqiobase)
1990                 iounmap(ha->mqiobase);
1991
1992         pci_release_selected_regions(ha->pdev, ha->bars);
1993         kfree(ha);
1994         ha = NULL;
1995
1996         pci_disable_device(pdev);
1997         pci_set_drvdata(pdev, NULL);
1998 }
1999
2000 static void
2001 qla2x00_free_device(scsi_qla_host_t *vha)
2002 {
2003         struct qla_hw_data *ha = vha->hw;
2004         qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
2005
2006         /* Disable timer */
2007         if (vha->timer_active)
2008                 qla2x00_stop_timer(vha);
2009
2010         vha->flags.online = 0;
2011
2012         /* Kill the kernel thread for this host */
2013         if (ha->dpc_thread) {
2014                 struct task_struct *t = ha->dpc_thread;
2015
2016                 /*
2017                  * qla2xxx_wake_dpc checks for ->dpc_thread
2018                  * so we need to zero it out.
2019                  */
2020                 ha->dpc_thread = NULL;
2021                 kthread_stop(t);
2022         }
2023
2024         if (ha->flags.fce_enabled)
2025                 qla2x00_disable_fce_trace(vha, NULL, NULL);
2026
2027         if (ha->eft)
2028                 qla2x00_disable_eft_trace(vha);
2029
2030         /* Stop currently executing firmware. */
2031         qla2x00_try_to_stop_firmware(vha);
2032
2033         /* turn-off interrupts on the card */
2034         if (ha->interrupts_on)
2035                 ha->isp_ops->disable_intrs(ha);
2036
2037         qla2x00_free_irqs(vha);
2038
2039         qla2x00_mem_free(ha);
2040
2041         qla2x00_free_queues(ha);
2042 }
2043
2044 static inline void
2045 qla2x00_schedule_rport_del(struct scsi_qla_host *vha, fc_port_t *fcport,
2046     int defer)
2047 {
2048         struct fc_rport *rport;
2049
2050         if (!fcport->rport)
2051                 return;
2052
2053         rport = fcport->rport;
2054         if (defer) {
2055                 spin_lock_irq(vha->host->host_lock);
2056                 fcport->drport = rport;
2057                 spin_unlock_irq(vha->host->host_lock);
2058                 set_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags);
2059                 qla2xxx_wake_dpc(vha);
2060         } else
2061                 fc_remote_port_delete(rport);
2062 }
2063
2064 /*
2065  * qla2x00_mark_device_lost Updates fcport state when device goes offline.
2066  *
2067  * Input: ha = adapter block pointer.  fcport = port structure pointer.
2068  *
2069  * Return: None.
2070  *
2071  * Context:
2072  */
2073 void qla2x00_mark_device_lost(scsi_qla_host_t *vha, fc_port_t *fcport,
2074     int do_login, int defer)
2075 {
2076         if (atomic_read(&fcport->state) == FCS_ONLINE &&
2077             vha->vp_idx == fcport->vp_idx) {
2078                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2079                 qla2x00_schedule_rport_del(vha, fcport, defer);
2080         }
2081         /*
2082          * We may need to retry the login, so don't change the state of the
2083          * port but do the retries.
2084          */
2085         if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
2086                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2087
2088         if (!do_login)
2089                 return;
2090
2091         if (fcport->login_retry == 0) {
2092                 fcport->login_retry = vha->hw->login_retry_count;
2093                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2094
2095                 DEBUG(printk("scsi(%ld): Port login retry: "
2096                     "%02x%02x%02x%02x%02x%02x%02x%02x, "
2097                     "id = 0x%04x retry cnt=%d\n",
2098                     vha->host_no,
2099                     fcport->port_name[0],
2100                     fcport->port_name[1],
2101                     fcport->port_name[2],
2102                     fcport->port_name[3],
2103                     fcport->port_name[4],
2104                     fcport->port_name[5],
2105                     fcport->port_name[6],
2106                     fcport->port_name[7],
2107                     fcport->loop_id,
2108                     fcport->login_retry));
2109         }
2110 }
2111
2112 /*
2113  * qla2x00_mark_all_devices_lost
2114  *      Updates fcport state when device goes offline.
2115  *
2116  * Input:
2117  *      ha = adapter block pointer.
2118  *      fcport = port structure pointer.
2119  *
2120  * Return:
2121  *      None.
2122  *
2123  * Context:
2124  */
2125 void
2126 qla2x00_mark_all_devices_lost(scsi_qla_host_t *vha, int defer)
2127 {
2128         fc_port_t *fcport;
2129
2130         list_for_each_entry(fcport, &vha->vp_fcports, list) {
2131                 if (vha->vp_idx != fcport->vp_idx)
2132                         continue;
2133                 /*
2134                  * No point in marking the device as lost, if the device is
2135                  * already DEAD.
2136                  */
2137                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
2138                         continue;
2139                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
2140                         atomic_set(&fcport->state, FCS_DEVICE_LOST);
2141                         qla2x00_schedule_rport_del(vha, fcport, defer);
2142                 } else
2143                         atomic_set(&fcport->state, FCS_DEVICE_LOST);
2144         }
2145 }
2146
2147 /*
2148 * qla2x00_mem_alloc
2149 *      Allocates adapter memory.
2150 *
2151 * Returns:
2152 *      0  = success.
2153 *      !0  = failure.
2154 */
2155 static int
2156 qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
2157         struct req_que **req, struct rsp_que **rsp)
2158 {
2159         char    name[16];
2160
2161         ha->init_cb_size = sizeof(init_cb_t);
2162         if (IS_QLA2XXX_MIDTYPE(ha))
2163                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
2164
2165         ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
2166                 &ha->init_cb_dma, GFP_KERNEL);
2167         if (!ha->init_cb)
2168                 goto fail;
2169
2170         ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
2171                 &ha->gid_list_dma, GFP_KERNEL);
2172         if (!ha->gid_list)
2173                 goto fail_free_init_cb;
2174
2175         ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
2176         if (!ha->srb_mempool)
2177                 goto fail_free_gid_list;
2178
2179         /* Get memory for cached NVRAM */
2180         ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
2181         if (!ha->nvram)
2182                 goto fail_free_srb_mempool;
2183
2184         snprintf(name, sizeof(name), "%s_%d", QLA2XXX_DRIVER_NAME,
2185                 ha->pdev->device);
2186         ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2187                 DMA_POOL_SIZE, 8, 0);
2188         if (!ha->s_dma_pool)
2189                 goto fail_free_nvram;
2190
2191         /* Allocate memory for SNS commands */
2192         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2193         /* Get consistent memory allocated for SNS commands */
2194                 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
2195                 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
2196                 if (!ha->sns_cmd)
2197                         goto fail_dma_pool;
2198         } else {
2199         /* Get consistent memory allocated for MS IOCB */
2200                 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2201                         &ha->ms_iocb_dma);
2202                 if (!ha->ms_iocb)
2203                         goto fail_dma_pool;
2204         /* Get consistent memory allocated for CT SNS commands */
2205                 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2206                         sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
2207                 if (!ha->ct_sns)
2208                         goto fail_free_ms_iocb;
2209         }
2210
2211         /* Allocate memory for request ring */
2212         *req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
2213         if (!*req) {
2214                 DEBUG(printk("Unable to allocate memory for req\n"));
2215                 goto fail_req;
2216         }
2217         (*req)->length = req_len;
2218         (*req)->ring = dma_alloc_coherent(&ha->pdev->dev,
2219                 ((*req)->length + 1) * sizeof(request_t),
2220                 &(*req)->dma, GFP_KERNEL);
2221         if (!(*req)->ring) {
2222                 DEBUG(printk("Unable to allocate memory for req_ring\n"));
2223                 goto fail_req_ring;
2224         }
2225         /* Allocate memory for response ring */
2226         *rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
2227         if (!*rsp) {
2228                 qla_printk(KERN_WARNING, ha,
2229                         "Unable to allocate memory for rsp\n");
2230                 goto fail_rsp;
2231         }
2232         (*rsp)->hw = ha;
2233         (*rsp)->length = rsp_len;
2234         (*rsp)->ring = dma_alloc_coherent(&ha->pdev->dev,
2235                 ((*rsp)->length + 1) * sizeof(response_t),
2236                 &(*rsp)->dma, GFP_KERNEL);
2237         if (!(*rsp)->ring) {
2238                 qla_printk(KERN_WARNING, ha,
2239                         "Unable to allocate memory for rsp_ring\n");
2240                 goto fail_rsp_ring;
2241         }
2242         (*req)->rsp = *rsp;
2243         (*rsp)->req = *req;
2244         /* Allocate memory for NVRAM data for vports */
2245         if (ha->nvram_npiv_size) {
2246                 ha->npiv_info = kzalloc(sizeof(struct qla_npiv_entry) *
2247                                         ha->nvram_npiv_size, GFP_KERNEL);
2248                 if (!ha->npiv_info) {
2249                         qla_printk(KERN_WARNING, ha,
2250                                 "Unable to allocate memory for npiv info\n");
2251                         goto fail_npiv_info;
2252                 }
2253         } else
2254                 ha->npiv_info = NULL;
2255
2256         INIT_LIST_HEAD(&ha->vp_list);
2257         return 1;
2258
2259 fail_npiv_info:
2260         dma_free_coherent(&ha->pdev->dev, ((*rsp)->length + 1) *
2261                 sizeof(response_t), (*rsp)->ring, (*rsp)->dma);
2262         (*rsp)->ring = NULL;
2263         (*rsp)->dma = 0;
2264 fail_rsp_ring:
2265         kfree(*rsp);
2266 fail_rsp:
2267         dma_free_coherent(&ha->pdev->dev, ((*req)->length + 1) *
2268                 sizeof(request_t), (*req)->ring, (*req)->dma);
2269         (*req)->ring = NULL;
2270         (*req)->dma = 0;
2271 fail_req_ring:
2272         kfree(*req);
2273 fail_req:
2274         dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2275                 ha->ct_sns, ha->ct_sns_dma);
2276         ha->ct_sns = NULL;
2277         ha->ct_sns_dma = 0;
2278 fail_free_ms_iocb:
2279         dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2280         ha->ms_iocb = NULL;
2281         ha->ms_iocb_dma = 0;
2282 fail_dma_pool:
2283         dma_pool_destroy(ha->s_dma_pool);
2284         ha->s_dma_pool = NULL;
2285 fail_free_nvram:
2286         kfree(ha->nvram);
2287         ha->nvram = NULL;
2288 fail_free_srb_mempool:
2289         mempool_destroy(ha->srb_mempool);
2290         ha->srb_mempool = NULL;
2291 fail_free_gid_list:
2292         dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2293         ha->gid_list_dma);
2294         ha->gid_list = NULL;
2295         ha->gid_list_dma = 0;
2296 fail_free_init_cb:
2297         dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
2298         ha->init_cb_dma);
2299         ha->init_cb = NULL;
2300         ha->init_cb_dma = 0;
2301 fail:
2302         DEBUG(printk("%s: Memory allocation failure\n", __func__));
2303         return -ENOMEM;
2304 }
2305
2306 /*
2307 * qla2x00_mem_free
2308 *      Frees all adapter allocated memory.
2309 *
2310 * Input:
2311 *      ha = adapter block pointer.
2312 */
2313 static void
2314 qla2x00_mem_free(struct qla_hw_data *ha)
2315 {
2316         if (ha->srb_mempool)
2317                 mempool_destroy(ha->srb_mempool);
2318
2319         if (ha->fce)
2320                 dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
2321                 ha->fce_dma);
2322
2323         if (ha->fw_dump) {
2324                 if (ha->eft)
2325                         dma_free_coherent(&ha->pdev->dev,
2326                         ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2327                 vfree(ha->fw_dump);
2328         }
2329
2330         if (ha->sns_cmd)
2331                 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2332                 ha->sns_cmd, ha->sns_cmd_dma);
2333
2334         if (ha->ct_sns)
2335                 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2336                 ha->ct_sns, ha->ct_sns_dma);
2337
2338         if (ha->sfp_data)
2339                 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2340
2341         if (ha->ms_iocb)
2342                 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2343
2344         if (ha->s_dma_pool)
2345                 dma_pool_destroy(ha->s_dma_pool);
2346
2347
2348         if (ha->gid_list)
2349                 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2350                 ha->gid_list_dma);
2351
2352
2353         if (ha->init_cb)
2354                 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
2355                 ha->init_cb, ha->init_cb_dma);
2356         vfree(ha->optrom_buffer);
2357         kfree(ha->nvram);
2358         kfree(ha->npiv_info);
2359
2360         ha->srb_mempool = NULL;
2361         ha->eft = NULL;
2362         ha->eft_dma = 0;
2363         ha->sns_cmd = NULL;
2364         ha->sns_cmd_dma = 0;
2365         ha->ct_sns = NULL;
2366         ha->ct_sns_dma = 0;
2367         ha->ms_iocb = NULL;
2368         ha->ms_iocb_dma = 0;
2369         ha->init_cb = NULL;
2370         ha->init_cb_dma = 0;
2371
2372         ha->s_dma_pool = NULL;
2373
2374         ha->gid_list = NULL;
2375         ha->gid_list_dma = 0;
2376
2377         ha->fw_dump = NULL;
2378         ha->fw_dumped = 0;
2379         ha->fw_dump_reading = 0;
2380 }
2381
2382 struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht,
2383                                                 struct qla_hw_data *ha)
2384 {
2385         struct Scsi_Host *host;
2386         struct scsi_qla_host *vha = NULL;
2387
2388         host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
2389         if (host == NULL) {
2390                 printk(KERN_WARNING
2391                 "qla2xxx: Couldn't allocate host from scsi layer!\n");
2392                 goto fail;
2393         }
2394
2395         /* Clear our data area */
2396         vha = shost_priv(host);
2397         memset(vha, 0, sizeof(scsi_qla_host_t));
2398
2399         vha->host = host;
2400         vha->host_no = host->host_no;
2401         vha->hw = ha;
2402
2403         INIT_LIST_HEAD(&vha->vp_fcports);
2404         INIT_LIST_HEAD(&vha->work_list);
2405         INIT_LIST_HEAD(&vha->list);
2406
2407         sprintf(vha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, vha->host_no);
2408         return vha;
2409
2410 fail:
2411         return vha;
2412 }
2413
2414 static struct qla_work_evt *
2415 qla2x00_alloc_work(struct scsi_qla_host *vha, enum qla_work_type type,
2416     int locked)
2417 {
2418         struct qla_work_evt *e;
2419
2420         e = kzalloc(sizeof(struct qla_work_evt), locked ? GFP_ATOMIC:
2421             GFP_KERNEL);
2422         if (!e)
2423                 return NULL;
2424
2425         INIT_LIST_HEAD(&e->list);
2426         e->type = type;
2427         e->flags = QLA_EVT_FLAG_FREE;
2428         return e;
2429 }
2430
2431 static int
2432 qla2x00_post_work(struct scsi_qla_host *vha, struct qla_work_evt *e, int locked)
2433 {
2434         unsigned long uninitialized_var(flags);
2435         struct qla_hw_data *ha = vha->hw;
2436
2437         if (!locked)
2438                 spin_lock_irqsave(&ha->hardware_lock, flags);
2439         list_add_tail(&e->list, &vha->work_list);
2440         qla2xxx_wake_dpc(vha);
2441         if (!locked)
2442                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2443         return QLA_SUCCESS;
2444 }
2445
2446 int
2447 qla2x00_post_aen_work(struct scsi_qla_host *vha, enum fc_host_event_code code,
2448     u32 data)
2449 {
2450         struct qla_work_evt *e;
2451
2452         e = qla2x00_alloc_work(vha, QLA_EVT_AEN, 1);
2453         if (!e)
2454                 return QLA_FUNCTION_FAILED;
2455
2456         e->u.aen.code = code;
2457         e->u.aen.data = data;
2458         return qla2x00_post_work(vha, e, 1);
2459 }
2460
2461 int
2462 qla2x00_post_hwe_work(struct scsi_qla_host *vha, uint16_t code, uint16_t d1,
2463     uint16_t d2, uint16_t d3)
2464 {
2465         struct qla_work_evt *e;
2466
2467         e = qla2x00_alloc_work(vha, QLA_EVT_HWE_LOG, 1);
2468         if (!e)
2469                 return QLA_FUNCTION_FAILED;
2470
2471         e->u.hwe.code = code;
2472         e->u.hwe.d1 = d1;
2473         e->u.hwe.d2 = d2;
2474         e->u.hwe.d3 = d3;
2475         return qla2x00_post_work(vha, e, 1);
2476 }
2477
2478 static void
2479 qla2x00_do_work(struct scsi_qla_host *vha)
2480 {
2481         struct qla_work_evt *e;
2482         struct qla_hw_data *ha = vha->hw;
2483
2484         spin_lock_irq(&ha->hardware_lock);
2485         while (!list_empty(&vha->work_list)) {
2486                 e = list_entry(vha->work_list.next, struct qla_work_evt, list);
2487                 list_del_init(&e->list);
2488                 spin_unlock_irq(&ha->hardware_lock);
2489
2490                 switch (e->type) {
2491                 case QLA_EVT_AEN:
2492                         fc_host_post_event(vha->host, fc_get_event_number(),
2493                             e->u.aen.code, e->u.aen.data);
2494                         break;
2495                 case QLA_EVT_HWE_LOG:
2496                         qla2xxx_hw_event_log(vha, e->u.hwe.code, e->u.hwe.d1,
2497                             e->u.hwe.d2, e->u.hwe.d3);
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         uint8_t         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                         set_bit(ABORT_QUEUES_NEEDED, &vha->dpc_flags);
2863                         start_dpc++;
2864                 }
2865
2866                 /* if the loop has been down for 4 minutes, reinit adapter */
2867                 if (atomic_dec_and_test(&vha->loop_down_timer) != 0) {
2868                         DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2869                             "restarting queues.\n",
2870                             vha->host_no));
2871
2872                         set_bit(RESTART_QUEUES_NEEDED, &vha->dpc_flags);
2873                         start_dpc++;
2874
2875                         if (!(vha->device_flags & DFLG_NO_CABLE) &&
2876                             !vha->vp_idx) {
2877                                 DEBUG(printk("scsi(%ld): Loop down - "
2878                                     "aborting ISP.\n",
2879                                     vha->host_no));
2880                                 qla_printk(KERN_WARNING, ha,
2881                                     "Loop down - aborting ISP.\n");
2882
2883                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2884                         }
2885                 }
2886                 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
2887                     vha->host_no,
2888                     atomic_read(&vha->loop_down_timer)));
2889         }
2890
2891         /* Check if beacon LED needs to be blinked */
2892         if (ha->beacon_blink_led == 1) {
2893                 set_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags);
2894                 start_dpc++;
2895         }
2896
2897         /* Process any deferred work. */
2898         if (!list_empty(&vha->work_list))
2899                 start_dpc++;
2900
2901         /* Schedule the DPC routine if needed */
2902         if ((test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
2903             test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) ||
2904             test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags) ||
2905             start_dpc ||
2906             test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) ||
2907             test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags) ||
2908             test_bit(VP_DPC_NEEDED, &vha->dpc_flags) ||
2909             test_bit(RELOGIN_NEEDED, &vha->dpc_flags)))
2910                 qla2xxx_wake_dpc(vha);
2911
2912         qla2x00_restart_timer(vha, WATCH_INTERVAL);
2913 }
2914
2915 /* Firmware interface routines. */
2916
2917 #define FW_BLOBS        6
2918 #define FW_ISP21XX      0
2919 #define FW_ISP22XX      1
2920 #define FW_ISP2300      2
2921 #define FW_ISP2322      3
2922 #define FW_ISP24XX      4
2923 #define FW_ISP25XX      5
2924
2925 #define FW_FILE_ISP21XX "ql2100_fw.bin"
2926 #define FW_FILE_ISP22XX "ql2200_fw.bin"
2927 #define FW_FILE_ISP2300 "ql2300_fw.bin"
2928 #define FW_FILE_ISP2322 "ql2322_fw.bin"
2929 #define FW_FILE_ISP24XX "ql2400_fw.bin"
2930 #define FW_FILE_ISP25XX "ql2500_fw.bin"
2931
2932 static DEFINE_MUTEX(qla_fw_lock);
2933
2934 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
2935         { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
2936         { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
2937         { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
2938         { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
2939         { .name = FW_FILE_ISP24XX, },
2940         { .name = FW_FILE_ISP25XX, },
2941 };
2942
2943 struct fw_blob *
2944 qla2x00_request_firmware(scsi_qla_host_t *vha)
2945 {
2946         struct qla_hw_data *ha = vha->hw;
2947         struct fw_blob *blob;
2948
2949         blob = NULL;
2950         if (IS_QLA2100(ha)) {
2951                 blob = &qla_fw_blobs[FW_ISP21XX];
2952         } else if (IS_QLA2200(ha)) {
2953                 blob = &qla_fw_blobs[FW_ISP22XX];
2954         } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
2955                 blob = &qla_fw_blobs[FW_ISP2300];
2956         } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
2957                 blob = &qla_fw_blobs[FW_ISP2322];
2958         } else if (IS_QLA24XX_TYPE(ha)) {
2959                 blob = &qla_fw_blobs[FW_ISP24XX];
2960         } else if (IS_QLA25XX(ha)) {
2961                 blob = &qla_fw_blobs[FW_ISP25XX];
2962         }
2963
2964         mutex_lock(&qla_fw_lock);
2965         if (blob->fw)
2966                 goto out;
2967
2968         if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
2969                 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
2970                     "(%s).\n", vha->host_no, blob->name));
2971                 blob->fw = NULL;
2972                 blob = NULL;
2973                 goto out;
2974         }
2975
2976 out:
2977         mutex_unlock(&qla_fw_lock);
2978         return blob;
2979 }
2980
2981 static void
2982 qla2x00_release_firmware(void)
2983 {
2984         int idx;
2985
2986         mutex_lock(&qla_fw_lock);
2987         for (idx = 0; idx < FW_BLOBS; idx++)
2988                 if (qla_fw_blobs[idx].fw)
2989                         release_firmware(qla_fw_blobs[idx].fw);
2990         mutex_unlock(&qla_fw_lock);
2991 }
2992
2993 static pci_ers_result_t
2994 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
2995 {
2996         switch (state) {
2997         case pci_channel_io_normal:
2998                 return PCI_ERS_RESULT_CAN_RECOVER;
2999         case pci_channel_io_frozen:
3000                 pci_disable_device(pdev);
3001                 return PCI_ERS_RESULT_NEED_RESET;
3002         case pci_channel_io_perm_failure:
3003                 qla2x00_remove_one(pdev);
3004                 return PCI_ERS_RESULT_DISCONNECT;
3005         }
3006         return PCI_ERS_RESULT_NEED_RESET;
3007 }
3008
3009 static pci_ers_result_t
3010 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
3011 {
3012         int risc_paused = 0;
3013         uint32_t stat;
3014         unsigned long flags;
3015         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3016         struct qla_hw_data *ha = base_vha->hw;
3017         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3018         struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
3019
3020         spin_lock_irqsave(&ha->hardware_lock, flags);
3021         if (IS_QLA2100(ha) || IS_QLA2200(ha)){
3022                 stat = RD_REG_DWORD(&reg->hccr);
3023                 if (stat & HCCR_RISC_PAUSE)
3024                         risc_paused = 1;
3025         } else if (IS_QLA23XX(ha)) {
3026                 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
3027                 if (stat & HSR_RISC_PAUSED)
3028                         risc_paused = 1;
3029         } else if (IS_FWI2_CAPABLE(ha)) {
3030                 stat = RD_REG_DWORD(&reg24->host_status);
3031                 if (stat & HSRX_RISC_PAUSED)
3032                         risc_paused = 1;
3033         }
3034         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3035
3036         if (risc_paused) {
3037                 qla_printk(KERN_INFO, ha, "RISC paused -- mmio_enabled, "
3038                     "Dumping firmware!\n");
3039                 ha->isp_ops->fw_dump(base_vha, 0);
3040
3041                 return PCI_ERS_RESULT_NEED_RESET;
3042         } else
3043                 return PCI_ERS_RESULT_RECOVERED;
3044 }
3045
3046 static pci_ers_result_t
3047 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
3048 {
3049         pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
3050         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3051         struct qla_hw_data *ha = base_vha->hw;
3052         int rc;
3053
3054         if (ha->mem_only)
3055                 rc = pci_enable_device_mem(pdev);
3056         else
3057                 rc = pci_enable_device(pdev);
3058
3059         if (rc) {
3060                 qla_printk(KERN_WARNING, ha,
3061                     "Can't re-enable PCI device after reset.\n");
3062
3063                 return ret;
3064         }
3065         pci_set_master(pdev);
3066
3067         if (ha->isp_ops->pci_config(base_vha))
3068                 return ret;
3069
3070         set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
3071         if (qla2x00_abort_isp(base_vha) == QLA_SUCCESS)
3072                 ret =  PCI_ERS_RESULT_RECOVERED;
3073         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
3074
3075         return ret;
3076 }
3077
3078 static void
3079 qla2xxx_pci_resume(struct pci_dev *pdev)
3080 {
3081         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3082         struct qla_hw_data *ha = base_vha->hw;
3083         int ret;
3084
3085         ret = qla2x00_wait_for_hba_online(base_vha);
3086         if (ret != QLA_SUCCESS) {
3087                 qla_printk(KERN_ERR, ha,
3088                     "the device failed to resume I/O "
3089                     "from slot/link_reset");
3090         }
3091         pci_cleanup_aer_uncorrect_error_status(pdev);
3092 }
3093
3094 static struct pci_error_handlers qla2xxx_err_handler = {
3095         .error_detected = qla2xxx_pci_error_detected,
3096         .mmio_enabled = qla2xxx_pci_mmio_enabled,
3097         .slot_reset = qla2xxx_pci_slot_reset,
3098         .resume = qla2xxx_pci_resume,
3099 };
3100
3101 static struct pci_device_id qla2xxx_pci_tbl[] = {
3102         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
3103         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
3104         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
3105         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
3106         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
3107         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
3108         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
3109         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
3110         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
3111         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) },
3112         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
3113         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
3114         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
3115         { 0 },
3116 };
3117 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
3118
3119 static struct pci_driver qla2xxx_pci_driver = {
3120         .name           = QLA2XXX_DRIVER_NAME,
3121         .driver         = {
3122                 .owner          = THIS_MODULE,
3123         },
3124         .id_table       = qla2xxx_pci_tbl,
3125         .probe          = qla2x00_probe_one,
3126         .remove         = qla2x00_remove_one,
3127         .err_handler    = &qla2xxx_err_handler,
3128 };
3129
3130 /**
3131  * qla2x00_module_init - Module initialization.
3132  **/
3133 static int __init
3134 qla2x00_module_init(void)
3135 {
3136         int ret = 0;
3137
3138         /* Allocate cache for SRBs. */
3139         srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
3140             SLAB_HWCACHE_ALIGN, NULL);
3141         if (srb_cachep == NULL) {
3142                 printk(KERN_ERR
3143                     "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
3144                 return -ENOMEM;
3145         }
3146
3147         /* Derive version string. */
3148         strcpy(qla2x00_version_str, QLA2XXX_VERSION);
3149         if (ql2xextended_error_logging)
3150                 strcat(qla2x00_version_str, "-debug");
3151
3152         qla2xxx_transport_template =
3153             fc_attach_transport(&qla2xxx_transport_functions);
3154         if (!qla2xxx_transport_template) {
3155                 kmem_cache_destroy(srb_cachep);
3156                 return -ENODEV;
3157         }
3158         qla2xxx_transport_vport_template =
3159             fc_attach_transport(&qla2xxx_transport_vport_functions);
3160         if (!qla2xxx_transport_vport_template) {
3161                 kmem_cache_destroy(srb_cachep);
3162                 fc_release_transport(qla2xxx_transport_template);
3163                 return -ENODEV;
3164         }
3165
3166         printk(KERN_INFO "QLogic Fibre Channel HBA Driver: %s\n",
3167             qla2x00_version_str);
3168         ret = pci_register_driver(&qla2xxx_pci_driver);
3169         if (ret) {
3170                 kmem_cache_destroy(srb_cachep);
3171                 fc_release_transport(qla2xxx_transport_template);
3172                 fc_release_transport(qla2xxx_transport_vport_template);
3173         }
3174         return ret;
3175 }
3176
3177 /**
3178  * qla2x00_module_exit - Module cleanup.
3179  **/
3180 static void __exit
3181 qla2x00_module_exit(void)
3182 {
3183         pci_unregister_driver(&qla2xxx_pci_driver);
3184         qla2x00_release_firmware();
3185         kmem_cache_destroy(srb_cachep);
3186         fc_release_transport(qla2xxx_transport_template);
3187         fc_release_transport(qla2xxx_transport_vport_template);
3188 }
3189
3190 module_init(qla2x00_module_init);
3191 module_exit(qla2x00_module_exit);
3192
3193 MODULE_AUTHOR("QLogic Corporation");
3194 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
3195 MODULE_LICENSE("GPL");
3196 MODULE_VERSION(QLA2XXX_VERSION);
3197 MODULE_FIRMWARE(FW_FILE_ISP21XX);
3198 MODULE_FIRMWARE(FW_FILE_ISP22XX);
3199 MODULE_FIRMWARE(FW_FILE_ISP2300);
3200 MODULE_FIRMWARE(FW_FILE_ISP2322);
3201 MODULE_FIRMWARE(FW_FILE_ISP24XX);
3202 MODULE_FIRMWARE(FW_FILE_ISP25XX);