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->fcport = fcport;
 442         sp->cmd = cmd;
 443         sp->que = ha->req_q_map[0];
 444         sp->flags = 0;
 445         CMD_SP(cmd) = (void *)sp;
 446         cmd->scsi_done = done;
 447
 448         return sp;
 449 }
 450
 451 static int
 452 qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 453 {
 454         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 455         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 456         struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
 457         struct qla_hw_data *ha = vha->hw;
 458         srb_t *sp;
 459         int rval;
 460
 461         if (unlikely(pci_channel_offline(ha->pdev))) {
 462                 cmd->result = DID_REQUEUE << 16;
 463                 goto qc_fail_command;
 464         }
 465
 466         rval = fc_remote_port_chkready(rport);
 467         if (rval) {
 468                 cmd->result = rval;
 469                 goto qc_fail_command;
 470         }
 471
 472         /* Close window on fcport/rport state-transitioning. */
 473         if (fcport->drport)
 474                 goto qc_target_busy;
 475
 476         if (atomic_read(&fcport->state) != FCS_ONLINE) {
 477                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
 478                     atomic_read(&vha->loop_state) == LOOP_DEAD) {
 479                         cmd->result = DID_NO_CONNECT << 16;
 480                         goto qc_fail_command;
 481                 }
 482                 goto qc_target_busy;
 483         }
 484
 485         spin_unlock_irq(vha->host->host_lock);
 486
 487         sp = qla2x00_get_new_sp(vha, fcport, cmd, done);
 488         if (!sp)
 489                 goto qc_host_busy_lock;
 490
 491         rval = ha->isp_ops->start_scsi(sp);
 492         if (rval != QLA_SUCCESS)
 493                 goto qc_host_busy_free_sp;
 494
 495         spin_lock_irq(vha->host->host_lock);
 496
 497         return 0;
 498
 499 qc_host_busy_free_sp:
 500         qla2x00_sp_free_dma(sp);
 501         mempool_free(sp, ha->srb_mempool);
 502
 503 qc_host_busy_lock:
 504         spin_lock_irq(vha->host->host_lock);
 505         return SCSI_MLQUEUE_HOST_BUSY;
 506
 507 qc_target_busy:
 508         return SCSI_MLQUEUE_TARGET_BUSY;
 509
 510 qc_fail_command:
 511         done(cmd);
 512
 513         return 0;
 514 }
 515
 516
 517 static int
 518 qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 519 {
 520         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 521         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 522         struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
 523         struct qla_hw_data *ha = vha->hw;
 524         struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
 525         srb_t *sp;
 526         int rval;
 527
 528         if (unlikely(pci_channel_offline(ha->pdev))) {
 529                 cmd->result = DID_REQUEUE << 16;
 530                 goto qc24_fail_command;
 531         }
 532
 533         rval = fc_remote_port_chkready(rport);
 534         if (rval) {
 535                 cmd->result = rval;
 536                 goto qc24_fail_command;
 537         }
 538
 539         /* Close window on fcport/rport state-transitioning. */
 540         if (fcport->drport)
 541                 goto qc24_target_busy;
 542
 543         if (atomic_read(&fcport->state) != FCS_ONLINE) {
 544                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
 545                     atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
 546                         cmd->result = DID_NO_CONNECT << 16;
 547                         goto qc24_fail_command;
 548                 }
 549                 goto qc24_target_busy;
 550         }
 551
 552         spin_unlock_irq(vha->host->host_lock);
 553
 554         sp = qla2x00_get_new_sp(base_vha, fcport, cmd, done);
 555         if (!sp)
 556                 goto qc24_host_busy_lock;
 557
 558         rval = ha->isp_ops->start_scsi(sp);
 559         if (rval != QLA_SUCCESS)
 560                 goto qc24_host_busy_free_sp;
 561
 562         spin_lock_irq(vha->host->host_lock);
 563
 564         return 0;
 565
 566 qc24_host_busy_free_sp:
 567         qla2x00_sp_free_dma(sp);
 568         mempool_free(sp, ha->srb_mempool);
 569
 570 qc24_host_busy_lock:
 571         spin_lock_irq(vha->host->host_lock);
 572         return SCSI_MLQUEUE_HOST_BUSY;
 573
 574 qc24_target_busy:
 575         return SCSI_MLQUEUE_TARGET_BUSY;
 576
 577 qc24_fail_command:
 578         done(cmd);
 579
 580         return 0;
 581 }
 582
 583
 584 /*
 585  * qla2x00_eh_wait_on_command
 586  *    Waits for the command to be returned by the Firmware for some
 587  *    max time.
 588  *
 589  * Input:
 590  *    cmd = Scsi Command to wait on.
 591  *
 592  * Return:
 593  *    Not Found : 0
 594  *    Found : 1
 595  */
 596 static int
 597 qla2x00_eh_wait_on_command(struct scsi_cmnd *cmd)
 598 {
 599 #define ABORT_POLLING_PERIOD    1000
 600 #define ABORT_WAIT_ITER         ((10 * 1000) / (ABORT_POLLING_PERIOD))
 601         unsigned long wait_iter = ABORT_WAIT_ITER;
 602         int ret = QLA_SUCCESS;
 603
 604         while (CMD_SP(cmd)) {
 605                 msleep(ABORT_POLLING_PERIOD);
 606
 607                 if (--wait_iter)
 608                         break;
 609         }
 610         if (CMD_SP(cmd))
 611                 ret = QLA_FUNCTION_FAILED;
 612
 613         return ret;
 614 }
 615
 616 /*
 617  * qla2x00_wait_for_hba_online
 618  *    Wait till the HBA is online after going through
 619  *    <= MAX_RETRIES_OF_ISP_ABORT  or
 620  *    finally HBA is disabled ie marked offline
 621  *
 622  * Input:
 623  *     ha - pointer to host adapter structure
 624  *
 625  * Note:
 626  *    Does context switching-Release SPIN_LOCK
 627  *    (if any) before calling this routine.
 628  *
 629  * Return:
 630  *    Success (Adapter is online) : 0
 631  *    Failed  (Adapter is offline/disabled) : 1
 632  */
 633 int
 634 qla2x00_wait_for_hba_online(scsi_qla_host_t *vha)
 635 {
 636         int             return_status;
 637         unsigned long   wait_online;
 638         struct qla_hw_data *ha = vha->hw;
 639         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 640
 641         wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 642         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 643             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 644             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 645             ha->dpc_active) && time_before(jiffies, wait_online)) {
 646
 647                 msleep(1000);
 648         }
 649         if (base_vha->flags.online)
 650                 return_status = QLA_SUCCESS;
 651         else
 652                 return_status = QLA_FUNCTION_FAILED;
 653
 654         return (return_status);
 655 }
 656
 657 /*
 658  * qla2x00_wait_for_loop_ready
 659  *    Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
 660  *    to be in LOOP_READY state.
 661  * Input:
 662  *     ha - pointer to host adapter structure
 663  *
 664  * Note:
 665  *    Does context switching-Release SPIN_LOCK
 666  *    (if any) before calling this routine.
 667  *
 668  *
 669  * Return:
 670  *    Success (LOOP_READY) : 0
 671  *    Failed  (LOOP_NOT_READY) : 1
 672  */
 673 static inline int
 674 qla2x00_wait_for_loop_ready(scsi_qla_host_t *vha)
 675 {
 676         int      return_status = QLA_SUCCESS;
 677         unsigned long loop_timeout ;
 678         struct qla_hw_data *ha = vha->hw;
 679         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 680
 681         /* wait for 5 min at the max for loop to be ready */
 682         loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 683
 684         while ((!atomic_read(&base_vha->loop_down_timer) &&
 685             atomic_read(&base_vha->loop_state) == LOOP_DOWN) ||
 686             atomic_read(&base_vha->loop_state) != LOOP_READY) {
 687                 if (atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
 688                         return_status = QLA_FUNCTION_FAILED;
 689                         break;
 690                 }
 691                 msleep(1000);
 692                 if (time_after_eq(jiffies, loop_timeout)) {
 693                         return_status = QLA_FUNCTION_FAILED;
 694                         break;
 695                 }
 696         }
 697         return (return_status);
 698 }
 699
 700 void
 701 qla2x00_abort_fcport_cmds(fc_port_t *fcport)
 702 {
 703         int cnt, que, id;
 704         unsigned long flags;
 705         srb_t *sp;
 706         scsi_qla_host_t *vha = fcport->vha;
 707         struct qla_hw_data *ha = vha->hw;
 708         struct req_que *req;
 709
 710         spin_lock_irqsave(&ha->hardware_lock, flags);
 711         for (que = 0; que < QLA_MAX_HOST_QUES; que++) {
 712                 id = vha->req_ques[que];
 713                 req = ha->req_q_map[id];
 714                 if (!req)
 715                         continue;
 716                 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
 717                         sp = req->outstanding_cmds[cnt];
 718                         if (!sp)
 719                                 continue;
 720                         if (sp->fcport != fcport)
 721                                 continue;
 722
 723                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 724                         if (ha->isp_ops->abort_command(vha, sp, req)) {
 725                                 DEBUG2(qla_printk(KERN_WARNING, ha,
 726                                 "Abort failed --  %lx\n",
 727                                 sp->cmd->serial_number));
 728                         } else {
 729                                 if (qla2x00_eh_wait_on_command(sp->cmd) !=
 730                                         QLA_SUCCESS)
 731                                         DEBUG2(qla_printk(KERN_WARNING, ha,
 732                                         "Abort failed while waiting --  %lx\n",
 733                                         sp->cmd->serial_number));
 734                         }
 735                         spin_lock_irqsave(&ha->hardware_lock, flags);
 736                 }
 737         }
 738         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 739 }
 740
 741 static void
 742 qla2x00_block_error_handler(struct scsi_cmnd *cmnd)
 743 {
 744         struct Scsi_Host *shost = cmnd->device->host;
 745         struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
 746         unsigned long flags;
 747
 748         spin_lock_irqsave(shost->host_lock, flags);
 749         while (rport->port_state == FC_PORTSTATE_BLOCKED) {
 750                 spin_unlock_irqrestore(shost->host_lock, flags);
 751                 msleep(1000);
 752                 spin_lock_irqsave(shost->host_lock, flags);
 753         }
 754         spin_unlock_irqrestore(shost->host_lock, flags);
 755         return;
 756 }
 757
 758 /**************************************************************************
 759 * qla2xxx_eh_abort
 760 *
 761 * Description:
 762 *    The abort function will abort the specified command.
 763 *
 764 * Input:
 765 *    cmd = Linux SCSI command packet to be aborted.
 766 *
 767 * Returns:
 768 *    Either SUCCESS or FAILED.
 769 *
 770 * Note:
 771 *    Only return FAILED if command not returned by firmware.
 772 **************************************************************************/
 773 static int
 774 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
 775 {
 776         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 777         srb_t *sp;
 778         int ret, i;
 779         unsigned int id, lun;
 780         unsigned long serial;
 781         unsigned long flags;
 782         int wait = 0;
 783         struct qla_hw_data *ha = vha->hw;
 784         struct req_que *req;
 785         srb_t *spt;
 786
 787         qla2x00_block_error_handler(cmd);
 788
 789         if (!CMD_SP(cmd))
 790                 return SUCCESS;
 791
 792         ret = SUCCESS;
 793
 794         id = cmd->device->id;
 795         lun = cmd->device->lun;
 796         serial = cmd->serial_number;
 797         spt = (srb_t *) CMD_SP(cmd);
 798         if (!spt)
 799                 return SUCCESS;
 800         req = spt->que;
 801
 802         /* Check active list for command command. */
 803         spin_lock_irqsave(&ha->hardware_lock, flags);
 804         for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
 805                 sp = req->outstanding_cmds[i];
 806
 807                 if (sp == NULL)
 808                         continue;
 809
 810                 if (sp->cmd != cmd)
 811                         continue;
 812
 813                 DEBUG2(printk("%s(%ld): aborting sp %p from RISC."
 814                 " pid=%ld.\n", __func__, vha->host_no, sp, serial));
 815
 816                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 817                 if (ha->isp_ops->abort_command(vha, sp, req)) {
 818                         DEBUG2(printk("%s(%ld): abort_command "
 819                         "mbx failed.\n", __func__, vha->host_no));
 820                 } else {
 821                         DEBUG3(printk("%s(%ld): abort_command "
 822                         "mbx success.\n", __func__, vha->host_no));
 823                         wait = 1;
 824                 }
 825                 spin_lock_irqsave(&ha->hardware_lock, flags);
 826                 break;
 827         }
 828         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 829
 830         /* Wait for the command to be returned. */
 831         if (wait) {
 832                 if (qla2x00_eh_wait_on_command(cmd) != QLA_SUCCESS) {
 833                         qla_printk(KERN_ERR, ha,
 834                             "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
 835                             "%x.\n", vha->host_no, id, lun, serial, ret);
 836                         ret = FAILED;
 837                 }
 838         }
 839
 840         qla_printk(KERN_INFO, ha,
 841             "scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n",
 842             vha->host_no, id, lun, wait, serial, ret);
 843
 844         return ret;
 845 }
 846
 847 enum nexus_wait_type {
 848         WAIT_HOST = 0,
 849         WAIT_TARGET,
 850         WAIT_LUN,
 851 };
 852
 853 static int
 854 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *vha, unsigned int t,
 855         unsigned int l, srb_t *sp, enum nexus_wait_type type)
 856 {
 857         int cnt, match, status;
 858         unsigned long flags;
 859         struct qla_hw_data *ha = vha->hw;
 860         struct req_que *req;
 861
 862         status = QLA_SUCCESS;
 863         if (!sp)
 864                 return status;
 865
 866         spin_lock_irqsave(&ha->hardware_lock, flags);
 867         req = sp->que;
 868         for (cnt = 1; status == QLA_SUCCESS &&
 869                 cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
 870                 sp = req->outstanding_cmds[cnt];
 871                 if (!sp)
 872                         continue;
 873
 874                 if (vha->vp_idx != sp->fcport->vha->vp_idx)
 875                         continue;
 876                 match = 0;
 877                 switch (type) {
 878                 case WAIT_HOST:
 879                         match = 1;
 880                         break;
 881                 case WAIT_TARGET:
 882                         match = sp->cmd->device->id == t;
 883                         break;
 884                 case WAIT_LUN:
 885                         match = (sp->cmd->device->id == t &&
 886                                 sp->cmd->device->lun == l);
 887                         break;
 888                 }
 889                 if (!match)
 890                         continue;
 891
 892                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 893                 status = qla2x00_eh_wait_on_command(sp->cmd);
 894                 spin_lock_irqsave(&ha->hardware_lock, flags);
 895         }
 896         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 897
 898         return status;
 899 }
 900
 901 static char *reset_errors[] = {
 902         "HBA not online",
 903         "HBA not ready",
 904         "Task management failed",
 905         "Waiting for command completions",
 906 };
 907
 908 static int
 909 __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
 910     struct scsi_cmnd *cmd, int (*do_reset)(struct fc_port *, unsigned int))
 911 {
 912         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 913         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 914         int err;
 915
 916         qla2x00_block_error_handler(cmd);
 917
 918         if (!fcport)
 919                 return FAILED;
 920
 921         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET ISSUED.\n",
 922             vha->host_no, cmd->device->id, cmd->device->lun, name);
 923
 924         err = 0;
 925         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
 926                 goto eh_reset_failed;
 927         err = 1;
 928         if (qla2x00_wait_for_loop_ready(vha) != QLA_SUCCESS)
 929                 goto eh_reset_failed;
 930         err = 2;
 931         if (do_reset(fcport, cmd->device->lun) != QLA_SUCCESS)
 932                 goto eh_reset_failed;
 933         err = 3;
 934         if (qla2x00_eh_wait_for_pending_commands(vha, cmd->device->id,
 935             cmd->device->lun, (srb_t *) CMD_SP(cmd), type) != QLA_SUCCESS)
 936                 goto eh_reset_failed;
 937
 938         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET SUCCEEDED.\n",
 939             vha->host_no, cmd->device->id, cmd->device->lun, name);
 940
 941         return SUCCESS;
 942
 943  eh_reset_failed:
 944         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET FAILED: %s.\n"
 945             , vha->host_no, cmd->device->id, cmd->device->lun, name,
 946             reset_errors[err]);
 947         return FAILED;
 948 }
 949
 950 static int
 951 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
 952 {
 953         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 954         struct qla_hw_data *ha = vha->hw;
 955
 956         return __qla2xxx_eh_generic_reset("DEVICE", WAIT_LUN, cmd,
 957             ha->isp_ops->lun_reset);
 958 }
 959
 960 static int
 961 qla2xxx_eh_target_reset(struct scsi_cmnd *cmd)
 962 {
 963         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 964         struct qla_hw_data *ha = vha->hw;
 965
 966         return __qla2xxx_eh_generic_reset("TARGET", WAIT_TARGET, cmd,
 967             ha->isp_ops->target_reset);
 968 }
 969
 970 /**************************************************************************
 971 * qla2xxx_eh_bus_reset
 972 *
 973 * Description:
 974 *    The bus reset function will reset the bus and abort any executing
 975 *    commands.
 976 *
 977 * Input:
 978 *    cmd = Linux SCSI command packet of the command that cause the
 979 *          bus reset.
 980 *
 981 * Returns:
 982 *    SUCCESS/FAILURE (defined as macro in scsi.h).
 983 *
 984 **************************************************************************/
 985 static int
 986 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
 987 {
 988         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 989         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 990         int ret = FAILED;
 991         unsigned int id, lun;
 992         unsigned long serial;
 993         srb_t *sp = (srb_t *) CMD_SP(cmd);
 994
 995         qla2x00_block_error_handler(cmd);
 996
 997         id = cmd->device->id;
 998         lun = cmd->device->lun;
 999         serial = cmd->serial_number;
1000
1001         if (!fcport)
1002                 return ret;
1003
1004         qla_printk(KERN_INFO, vha->hw,
1005             "scsi(%ld:%d:%d): BUS RESET ISSUED.\n", vha->host_no, id, lun);
1006
1007         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1008                 DEBUG2(printk("%s failed:board disabled\n",__func__));
1009                 goto eh_bus_reset_done;
1010         }
1011
1012         if (qla2x00_wait_for_loop_ready(vha) == QLA_SUCCESS) {
1013                 if (qla2x00_loop_reset(vha) == QLA_SUCCESS)
1014                         ret = SUCCESS;
1015         }
1016         if (ret == FAILED)
1017                 goto eh_bus_reset_done;
1018
1019         /* Flush outstanding commands. */
1020         if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, sp, WAIT_HOST) !=
1021             QLA_SUCCESS)
1022                 ret = FAILED;
1023
1024 eh_bus_reset_done:
1025         qla_printk(KERN_INFO, vha->hw, "%s: reset %s\n", __func__,
1026             (ret == FAILED) ? "failed" : "succeded");
1027
1028         return ret;
1029 }
1030
1031 /**************************************************************************
1032 * qla2xxx_eh_host_reset
1033 *
1034 * Description:
1035 *    The reset function will reset the Adapter.
1036 *
1037 * Input:
1038 *      cmd = Linux SCSI command packet of the command that cause the
1039 *            adapter reset.
1040 *
1041 * Returns:
1042 *      Either SUCCESS or FAILED.
1043 *
1044 * Note:
1045 **************************************************************************/
1046 static int
1047 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
1048 {
1049         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1050         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1051         struct qla_hw_data *ha = vha->hw;
1052         int ret = FAILED;
1053         unsigned int id, lun;
1054         unsigned long serial;
1055         srb_t *sp = (srb_t *) CMD_SP(cmd);
1056         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1057
1058         qla2x00_block_error_handler(cmd);
1059
1060         id = cmd->device->id;
1061         lun = cmd->device->lun;
1062         serial = cmd->serial_number;
1063
1064         if (!fcport)
1065                 return ret;
1066
1067         qla_printk(KERN_INFO, ha,
1068             "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", vha->host_no, id, lun);
1069
1070         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
1071                 goto eh_host_reset_lock;
1072
1073         /*
1074          * Fixme-may be dpc thread is active and processing
1075          * loop_resync,so wait a while for it to
1076          * be completed and then issue big hammer.Otherwise
1077          * it may cause I/O failure as big hammer marks the
1078          * devices as lost kicking of the port_down_timer
1079          * while dpc is stuck for the mailbox to complete.
1080          */
1081         qla2x00_wait_for_loop_ready(vha);
1082         if (vha != base_vha) {
1083                 if (qla2x00_vp_abort_isp(vha))
1084                         goto eh_host_reset_lock;
1085         } else {
1086                 set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1087                 if (qla2x00_abort_isp(base_vha)) {
1088                         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1089                         /* failed. schedule dpc to try */
1090                         set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags);
1091
1092                         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
1093                                 goto eh_host_reset_lock;
1094                 }
1095                 clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1096         }
1097
1098         /* Waiting for command to be returned to OS.*/
1099         if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, sp, WAIT_HOST) ==
1100                 QLA_SUCCESS)
1101                 ret = SUCCESS;
1102
1103 eh_host_reset_lock:
1104         qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
1105             (ret == FAILED) ? "failed" : "succeded");
1106
1107         return ret;
1108 }
1109
1110 /*
1111 * qla2x00_loop_reset
1112 *      Issue loop reset.
1113 *
1114 * Input:
1115 *      ha = adapter block pointer.
1116 *
1117 * Returns:
1118 *      0 = success
1119 */
1120 int
1121 qla2x00_loop_reset(scsi_qla_host_t *vha)
1122 {
1123         int ret;
1124         struct fc_port *fcport;
1125         struct qla_hw_data *ha = vha->hw;
1126
1127         if (ha->flags.enable_lip_full_login && !vha->vp_idx) {
1128                 ret = qla2x00_full_login_lip(vha);
1129                 if (ret != QLA_SUCCESS) {
1130                         DEBUG2_3(printk("%s(%ld): failed: "
1131                             "full_login_lip=%d.\n", __func__, vha->host_no,
1132                             ret));
1133                 }
1134                 atomic_set(&vha->loop_state, LOOP_DOWN);
1135                 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1136                 qla2x00_mark_all_devices_lost(vha, 0);
1137                 qla2x00_wait_for_loop_ready(vha);
1138         }
1139
1140         if (ha->flags.enable_lip_reset && !vha->vp_idx) {
1141                 ret = qla2x00_lip_reset(vha);
1142                 if (ret != QLA_SUCCESS) {
1143                         DEBUG2_3(printk("%s(%ld): failed: "
1144                             "lip_reset=%d.\n", __func__, vha->host_no, ret));
1145                 } else
1146                         qla2x00_wait_for_loop_ready(vha);
1147         }
1148
1149         if (ha->flags.enable_target_reset) {
1150                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
1151                         if (fcport->port_type != FCT_TARGET)
1152                                 continue;
1153
1154                         ret = ha->isp_ops->target_reset(fcport, 0);
1155                         if (ret != QLA_SUCCESS) {
1156                                 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1157                                     "target_reset=%d d_id=%x.\n", __func__,
1158                                     vha->host_no, ret, fcport->d_id.b24));
1159                         }
1160                 }
1161         }
1162         /* Issue marker command only when we are going to start the I/O */
1163         vha->marker_needed = 1;
1164
1165         return QLA_SUCCESS;
1166 }
1167
1168 void
1169 qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res)
1170 {
1171         int que, cnt;
1172         unsigned long flags;
1173         srb_t *sp;
1174         struct qla_hw_data *ha = vha->hw;
1175         struct req_que *req;
1176
1177         spin_lock_irqsave(&ha->hardware_lock, flags);
1178         for (que = 0; que < QLA_MAX_HOST_QUES; que++) {
1179                 req = ha->req_q_map[vha->req_ques[que]];
1180                 if (!req)
1181                         continue;
1182                 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
1183                         sp = req->outstanding_cmds[cnt];
1184                         if (sp && sp->fcport->vha == vha) {
1185                                 req->outstanding_cmds[cnt] = NULL;
1186                                 sp->cmd->result = res;
1187                                 qla2x00_sp_compl(ha, sp);
1188                         }
1189                 }
1190         }
1191         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1192 }
1193
1194 static int
1195 qla2xxx_slave_alloc(struct scsi_device *sdev)
1196 {
1197         struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1198
1199         if (!rport || fc_remote_port_chkready(rport))
1200                 return -ENXIO;
1201
1202         sdev->hostdata = *(fc_port_t **)rport->dd_data;
1203
1204         return 0;
1205 }
1206
1207 static int
1208 qla2xxx_slave_configure(struct scsi_device *sdev)
1209 {
1210         scsi_qla_host_t *vha = shost_priv(sdev->host);
1211         struct qla_hw_data *ha = vha->hw;
1212         struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1213         struct req_que *req = ha->req_q_map[0];
1214
1215         if (sdev->tagged_supported)
1216                 scsi_activate_tcq(sdev, req->max_q_depth);
1217         else
1218                 scsi_deactivate_tcq(sdev, req->max_q_depth);
1219
1220         rport->dev_loss_tmo = ha->port_down_retry_count;
1221
1222         return 0;
1223 }
1224
1225 static void
1226 qla2xxx_slave_destroy(struct scsi_device *sdev)
1227 {
1228         sdev->hostdata = NULL;
1229 }
1230
1231 static int
1232 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1233 {
1234         scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1235         return sdev->queue_depth;
1236 }
1237
1238 static int
1239 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1240 {
1241         if (sdev->tagged_supported) {
1242                 scsi_set_tag_type(sdev, tag_type);
1243                 if (tag_type)
1244                         scsi_activate_tcq(sdev, sdev->queue_depth);
1245                 else
1246                         scsi_deactivate_tcq(sdev, sdev->queue_depth);
1247         } else
1248                 tag_type = 0;
1249
1250         return tag_type;
1251 }
1252
1253 /**
1254  * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1255  * @ha: HA context
1256  *
1257  * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1258  * supported addressing method.
1259  */
1260 static void
1261 qla2x00_config_dma_addressing(scsi_qla_host_t *vha)
1262 {
1263         struct qla_hw_data *ha = vha->hw;
1264         /* Assume a 32bit DMA mask. */
1265         ha->flags.enable_64bit_addressing = 0;
1266
1267         if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1268                 /* Any upper-dword bits set? */
1269                 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1270                     !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1271                         /* Ok, a 64bit DMA mask is applicable. */
1272                         ha->flags.enable_64bit_addressing = 1;
1273                         ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1274                         ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1275                         return;
1276                 }
1277         }
1278
1279         dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1280         pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
1281 }
1282
1283 static void
1284 qla2x00_enable_intrs(struct qla_hw_data *ha)
1285 {
1286         unsigned long flags = 0;
1287         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1288
1289         spin_lock_irqsave(&ha->hardware_lock, flags);
1290         ha->interrupts_on = 1;
1291         /* enable risc and host interrupts */
1292         WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1293         RD_REG_WORD(&reg->ictrl);
1294         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1295
1296 }
1297
1298 static void
1299 qla2x00_disable_intrs(struct qla_hw_data *ha)
1300 {
1301         unsigned long flags = 0;
1302         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1303
1304         spin_lock_irqsave(&ha->hardware_lock, flags);
1305         ha->interrupts_on = 0;
1306         /* disable risc and host interrupts */
1307         WRT_REG_WORD(&reg->ictrl, 0);
1308         RD_REG_WORD(&reg->ictrl);
1309         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1310 }
1311
1312 static void
1313 qla24xx_enable_intrs(struct qla_hw_data *ha)
1314 {
1315         unsigned long flags = 0;
1316         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1317
1318         spin_lock_irqsave(&ha->hardware_lock, flags);
1319         ha->interrupts_on = 1;
1320         WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1321         RD_REG_DWORD(&reg->ictrl);
1322         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1323 }
1324
1325 static void
1326 qla24xx_disable_intrs(struct qla_hw_data *ha)
1327 {
1328         unsigned long flags = 0;
1329         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1330
1331         if (IS_NOPOLLING_TYPE(ha))
1332                 return;
1333         spin_lock_irqsave(&ha->hardware_lock, flags);
1334         ha->interrupts_on = 0;
1335         WRT_REG_DWORD(&reg->ictrl, 0);
1336         RD_REG_DWORD(&reg->ictrl);
1337         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1338 }
1339
1340 static struct isp_operations qla2100_isp_ops = {
1341         .pci_config             = qla2100_pci_config,
1342         .reset_chip             = qla2x00_reset_chip,
1343         .chip_diag              = qla2x00_chip_diag,
1344         .config_rings           = qla2x00_config_rings,
1345         .reset_adapter          = qla2x00_reset_adapter,
1346         .nvram_config           = qla2x00_nvram_config,
1347         .update_fw_options      = qla2x00_update_fw_options,
1348         .load_risc              = qla2x00_load_risc,
1349         .pci_info_str           = qla2x00_pci_info_str,
1350         .fw_version_str         = qla2x00_fw_version_str,
1351         .intr_handler           = qla2100_intr_handler,
1352         .enable_intrs           = qla2x00_enable_intrs,
1353         .disable_intrs          = qla2x00_disable_intrs,
1354         .abort_command          = qla2x00_abort_command,
1355         .target_reset           = qla2x00_abort_target,
1356         .lun_reset              = qla2x00_lun_reset,
1357         .fabric_login           = qla2x00_login_fabric,
1358         .fabric_logout          = qla2x00_fabric_logout,
1359         .calc_req_entries       = qla2x00_calc_iocbs_32,
1360         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1361         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1362         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1363         .read_nvram             = qla2x00_read_nvram_data,
1364         .write_nvram            = qla2x00_write_nvram_data,
1365         .fw_dump                = qla2100_fw_dump,
1366         .beacon_on              = NULL,
1367         .beacon_off             = NULL,
1368         .beacon_blink           = NULL,
1369         .read_optrom            = qla2x00_read_optrom_data,
1370         .write_optrom           = qla2x00_write_optrom_data,
1371         .get_flash_version      = qla2x00_get_flash_version,
1372         .start_scsi             = qla2x00_start_scsi,
1373         .wrt_req_reg            = NULL,
1374         .wrt_rsp_reg            = NULL,
1375         .rd_req_reg             = NULL,
1376 };
1377
1378 static struct isp_operations qla2300_isp_ops = {
1379         .pci_config             = qla2300_pci_config,
1380         .reset_chip             = qla2x00_reset_chip,
1381         .chip_diag              = qla2x00_chip_diag,
1382         .config_rings           = qla2x00_config_rings,
1383         .reset_adapter          = qla2x00_reset_adapter,
1384         .nvram_config           = qla2x00_nvram_config,
1385         .update_fw_options      = qla2x00_update_fw_options,
1386         .load_risc              = qla2x00_load_risc,
1387         .pci_info_str           = qla2x00_pci_info_str,
1388         .fw_version_str         = qla2x00_fw_version_str,
1389         .intr_handler           = qla2300_intr_handler,
1390         .enable_intrs           = qla2x00_enable_intrs,
1391         .disable_intrs          = qla2x00_disable_intrs,
1392         .abort_command          = qla2x00_abort_command,
1393         .target_reset           = qla2x00_abort_target,
1394         .lun_reset              = qla2x00_lun_reset,
1395         .fabric_login           = qla2x00_login_fabric,
1396         .fabric_logout          = qla2x00_fabric_logout,
1397         .calc_req_entries       = qla2x00_calc_iocbs_32,
1398         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1399         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1400         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1401         .read_nvram             = qla2x00_read_nvram_data,
1402         .write_nvram            = qla2x00_write_nvram_data,
1403         .fw_dump                = qla2300_fw_dump,
1404         .beacon_on              = qla2x00_beacon_on,
1405         .beacon_off             = qla2x00_beacon_off,
1406         .beacon_blink           = qla2x00_beacon_blink,
1407         .read_optrom            = qla2x00_read_optrom_data,
1408         .write_optrom           = qla2x00_write_optrom_data,
1409         .get_flash_version      = qla2x00_get_flash_version,
1410         .start_scsi             = qla2x00_start_scsi,
1411         .wrt_req_reg            = NULL,
1412         .wrt_rsp_reg            = NULL,
1413         .rd_req_reg             = NULL,
1414 };
1415
1416 static struct isp_operations qla24xx_isp_ops = {
1417         .pci_config             = qla24xx_pci_config,
1418         .reset_chip             = qla24xx_reset_chip,
1419         .chip_diag              = qla24xx_chip_diag,
1420         .config_rings           = qla24xx_config_rings,
1421         .reset_adapter          = qla24xx_reset_adapter,
1422         .nvram_config           = qla24xx_nvram_config,
1423         .update_fw_options      = qla24xx_update_fw_options,
1424         .load_risc              = qla24xx_load_risc,
1425         .pci_info_str           = qla24xx_pci_info_str,
1426         .fw_version_str         = qla24xx_fw_version_str,
1427         .intr_handler           = qla24xx_intr_handler,
1428         .enable_intrs           = qla24xx_enable_intrs,
1429         .disable_intrs          = qla24xx_disable_intrs,
1430         .abort_command          = qla24xx_abort_command,
1431         .target_reset           = qla24xx_abort_target,
1432         .lun_reset              = qla24xx_lun_reset,
1433         .fabric_login           = qla24xx_login_fabric,
1434         .fabric_logout          = qla24xx_fabric_logout,
1435         .calc_req_entries       = NULL,
1436         .build_iocbs            = NULL,
1437         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1438         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1439         .read_nvram             = qla24xx_read_nvram_data,
1440         .write_nvram            = qla24xx_write_nvram_data,
1441         .fw_dump                = qla24xx_fw_dump,
1442         .beacon_on              = qla24xx_beacon_on,
1443         .beacon_off             = qla24xx_beacon_off,
1444         .beacon_blink           = qla24xx_beacon_blink,
1445         .read_optrom            = qla24xx_read_optrom_data,
1446         .write_optrom           = qla24xx_write_optrom_data,
1447         .get_flash_version      = qla24xx_get_flash_version,
1448         .start_scsi             = qla24xx_start_scsi,
1449         .wrt_req_reg            = qla24xx_wrt_req_reg,
1450         .wrt_rsp_reg            = qla24xx_wrt_rsp_reg,
1451         .rd_req_reg             = qla24xx_rd_req_reg,
1452 };
1453
1454 static struct isp_operations qla25xx_isp_ops = {
1455         .pci_config             = qla25xx_pci_config,
1456         .reset_chip             = qla24xx_reset_chip,
1457         .chip_diag              = qla24xx_chip_diag,
1458         .config_rings           = qla24xx_config_rings,
1459         .reset_adapter          = qla24xx_reset_adapter,
1460         .nvram_config           = qla24xx_nvram_config,
1461         .update_fw_options      = qla24xx_update_fw_options,
1462         .load_risc              = qla24xx_load_risc,
1463         .pci_info_str           = qla24xx_pci_info_str,
1464         .fw_version_str         = qla24xx_fw_version_str,
1465         .intr_handler           = qla24xx_intr_handler,
1466         .enable_intrs           = qla24xx_enable_intrs,
1467         .disable_intrs          = qla24xx_disable_intrs,
1468         .abort_command          = qla24xx_abort_command,
1469         .target_reset           = qla24xx_abort_target,
1470         .lun_reset              = qla24xx_lun_reset,
1471         .fabric_login           = qla24xx_login_fabric,
1472         .fabric_logout          = qla24xx_fabric_logout,
1473         .calc_req_entries       = NULL,
1474         .build_iocbs            = NULL,
1475         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1476         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1477         .read_nvram             = qla25xx_read_nvram_data,
1478         .write_nvram            = qla25xx_write_nvram_data,
1479         .fw_dump                = qla25xx_fw_dump,
1480         .beacon_on              = qla24xx_beacon_on,
1481         .beacon_off             = qla24xx_beacon_off,
1482         .beacon_blink           = qla24xx_beacon_blink,
1483         .read_optrom            = qla25xx_read_optrom_data,
1484         .write_optrom           = qla24xx_write_optrom_data,
1485         .get_flash_version      = qla24xx_get_flash_version,
1486         .start_scsi             = qla24xx_start_scsi,
1487         .wrt_req_reg            = qla24xx_wrt_req_reg,
1488         .wrt_rsp_reg            = qla24xx_wrt_rsp_reg,
1489         .rd_req_reg             = qla24xx_rd_req_reg,
1490 };
1491
1492 static inline void
1493 qla2x00_set_isp_flags(struct qla_hw_data *ha)
1494 {
1495         ha->device_type = DT_EXTENDED_IDS;
1496         switch (ha->pdev->device) {
1497         case PCI_DEVICE_ID_QLOGIC_ISP2100:
1498                 ha->device_type |= DT_ISP2100;
1499                 ha->device_type &= ~DT_EXTENDED_IDS;
1500                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1501                 break;
1502         case PCI_DEVICE_ID_QLOGIC_ISP2200:
1503                 ha->device_type |= DT_ISP2200;
1504                 ha->device_type &= ~DT_EXTENDED_IDS;
1505                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1506                 break;
1507         case PCI_DEVICE_ID_QLOGIC_ISP2300:
1508                 ha->device_type |= DT_ISP2300;
1509                 ha->device_type |= DT_ZIO_SUPPORTED;
1510                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1511                 break;
1512         case PCI_DEVICE_ID_QLOGIC_ISP2312:
1513                 ha->device_type |= DT_ISP2312;
1514                 ha->device_type |= DT_ZIO_SUPPORTED;
1515                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1516                 break;
1517         case PCI_DEVICE_ID_QLOGIC_ISP2322:
1518                 ha->device_type |= DT_ISP2322;
1519                 ha->device_type |= DT_ZIO_SUPPORTED;
1520                 if (ha->pdev->subsystem_vendor == 0x1028 &&
1521                     ha->pdev->subsystem_device == 0x0170)
1522                         ha->device_type |= DT_OEM_001;
1523                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1524                 break;
1525         case PCI_DEVICE_ID_QLOGIC_ISP6312:
1526                 ha->device_type |= DT_ISP6312;
1527                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1528                 break;
1529         case PCI_DEVICE_ID_QLOGIC_ISP6322:
1530                 ha->device_type |= DT_ISP6322;
1531                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1532                 break;
1533         case PCI_DEVICE_ID_QLOGIC_ISP2422:
1534                 ha->device_type |= DT_ISP2422;
1535                 ha->device_type |= DT_ZIO_SUPPORTED;
1536                 ha->device_type |= DT_FWI2;
1537                 ha->device_type |= DT_IIDMA;
1538                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1539                 break;
1540         case PCI_DEVICE_ID_QLOGIC_ISP2432:
1541                 ha->device_type |= DT_ISP2432;
1542                 ha->device_type |= DT_ZIO_SUPPORTED;
1543                 ha->device_type |= DT_FWI2;
1544                 ha->device_type |= DT_IIDMA;
1545                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1546                 break;
1547         case PCI_DEVICE_ID_QLOGIC_ISP8432:
1548                 ha->device_type |= DT_ISP8432;
1549                 ha->device_type |= DT_ZIO_SUPPORTED;
1550                 ha->device_type |= DT_FWI2;
1551                 ha->device_type |= DT_IIDMA;
1552                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1553                 break;
1554         case PCI_DEVICE_ID_QLOGIC_ISP5422:
1555                 ha->device_type |= DT_ISP5422;
1556                 ha->device_type |= DT_FWI2;
1557                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1558                 break;
1559         case PCI_DEVICE_ID_QLOGIC_ISP5432:
1560                 ha->device_type |= DT_ISP5432;
1561                 ha->device_type |= DT_FWI2;
1562                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1563                 break;
1564         case PCI_DEVICE_ID_QLOGIC_ISP2532:
1565                 ha->device_type |= DT_ISP2532;
1566                 ha->device_type |= DT_ZIO_SUPPORTED;
1567                 ha->device_type |= DT_FWI2;
1568                 ha->device_type |= DT_IIDMA;
1569                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1570                 break;
1571         }
1572 }
1573
1574 static int
1575 qla2x00_iospace_config(struct qla_hw_data *ha)
1576 {
1577         resource_size_t pio;
1578         uint16_t msix;
1579
1580         if (pci_request_selected_regions(ha->pdev, ha->bars,
1581             QLA2XXX_DRIVER_NAME)) {
1582                 qla_printk(KERN_WARNING, ha,
1583                     "Failed to reserve PIO/MMIO regions (%s)\n",
1584                     pci_name(ha->pdev));
1585
1586                 goto iospace_error_exit;
1587         }
1588         if (!(ha->bars & 1))
1589                 goto skip_pio;
1590
1591         /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1592         pio = pci_resource_start(ha->pdev, 0);
1593         if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
1594                 if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1595                         qla_printk(KERN_WARNING, ha,
1596                             "Invalid PCI I/O region size (%s)...\n",
1597                                 pci_name(ha->pdev));
1598                         pio = 0;
1599                 }
1600         } else {
1601                 qla_printk(KERN_WARNING, ha,
1602                     "region #0 not a PIO resource (%s)...\n",
1603                     pci_name(ha->pdev));
1604                 pio = 0;
1605         }
1606         ha->pio_address = pio;
1607
1608 skip_pio:
1609         /* Use MMIO operations for all accesses. */
1610         if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
1611                 qla_printk(KERN_ERR, ha,
1612                     "region #1 not an MMIO resource (%s), aborting\n",
1613                     pci_name(ha->pdev));
1614                 goto iospace_error_exit;
1615         }
1616         if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
1617                 qla_printk(KERN_ERR, ha,
1618                     "Invalid PCI mem region size (%s), aborting\n",
1619                         pci_name(ha->pdev));
1620                 goto iospace_error_exit;
1621         }
1622
1623         ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
1624         if (!ha->iobase) {
1625                 qla_printk(KERN_ERR, ha,
1626                     "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1627
1628                 goto iospace_error_exit;
1629         }
1630
1631         /* Determine queue resources */
1632         ha->max_queues = 1;
1633         if (ql2xmaxqueues <= 1 || !IS_QLA25XX(ha))
1634                 goto mqiobase_exit;
1635         ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 3),
1636                         pci_resource_len(ha->pdev, 3));
1637         if (ha->mqiobase) {
1638                 /* Read MSIX vector size of the board */
1639                 pci_read_config_word(ha->pdev, QLA_PCI_MSIX_CONTROL, &msix);
1640                 ha->msix_count = msix;
1641                 /* Max queues are bounded by available msix vectors */
1642                 /* queue 0 uses two msix vectors */
1643                 if (ha->msix_count - 1 < ql2xmaxqueues)
1644                         ha->max_queues = ha->msix_count - 1;
1645                 else if (ql2xmaxqueues > QLA_MQ_SIZE)
1646                         ha->max_queues = QLA_MQ_SIZE;
1647                 else
1648                         ha->max_queues = ql2xmaxqueues;
1649                 qla_printk(KERN_INFO, ha,
1650                         "MSI-X vector count: %d\n", msix);
1651         }
1652
1653 mqiobase_exit:
1654         ha->msix_count = ha->max_queues + 1;
1655         return (0);
1656
1657 iospace_error_exit:
1658         return (-ENOMEM);
1659 }
1660
1661 static void
1662 qla2xxx_scan_start(struct Scsi_Host *shost)
1663 {
1664         scsi_qla_host_t *vha = shost_priv(shost);
1665
1666         set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1667         set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1668         set_bit(RSCN_UPDATE, &vha->dpc_flags);
1669         set_bit(NPIV_CONFIG_NEEDED, &vha->dpc_flags);
1670 }
1671
1672 static int
1673 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1674 {
1675         scsi_qla_host_t *vha = shost_priv(shost);
1676
1677         if (!vha->host)
1678                 return 1;
1679         if (time > vha->hw->loop_reset_delay * HZ)
1680                 return 1;
1681
1682         return atomic_read(&vha->loop_state) == LOOP_READY;
1683 }
1684
1685 /*
1686  * PCI driver interface
1687  */
1688 static int __devinit
1689 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1690 {
1691         int     ret = -ENODEV;
1692         struct Scsi_Host *host;
1693         scsi_qla_host_t *base_vha = NULL;
1694         struct qla_hw_data *ha;
1695         char pci_info[30];
1696         char fw_str[30];
1697         struct scsi_host_template *sht;
1698         int bars, max_id, mem_only = 0;
1699         uint16_t req_length = 0, rsp_length = 0;
1700         struct req_que *req = NULL;
1701         struct rsp_que *rsp = NULL;
1702
1703         bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
1704         sht = &qla2x00_driver_template;
1705         if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1706             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1707             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8432 ||
1708             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1709             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
1710             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532) {
1711                 bars = pci_select_bars(pdev, IORESOURCE_MEM);
1712                 sht = &qla24xx_driver_template;
1713                 mem_only = 1;
1714         }
1715
1716         if (mem_only) {
1717                 if (pci_enable_device_mem(pdev))
1718                         goto probe_out;
1719         } else {
1720                 if (pci_enable_device(pdev))
1721                         goto probe_out;
1722         }
1723
1724         /* This may fail but that's ok */
1725         pci_enable_pcie_error_reporting(pdev);
1726
1727         ha = kzalloc(sizeof(struct qla_hw_data), GFP_KERNEL);
1728         if (!ha) {
1729                 DEBUG(printk("Unable to allocate memory for ha\n"));
1730                 goto probe_out;
1731         }
1732         ha->pdev = pdev;
1733
1734         /* Clear our data area */
1735         ha->bars = bars;
1736         ha->mem_only = mem_only;
1737         spin_lock_init(&ha->hardware_lock);
1738
1739         /* Set ISP-type information. */
1740         qla2x00_set_isp_flags(ha);
1741         /* Configure PCI I/O space */
1742         ret = qla2x00_iospace_config(ha);
1743         if (ret)
1744                 goto probe_hw_failed;
1745
1746         qla_printk(KERN_INFO, ha,
1747             "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1748             ha->iobase);
1749
1750         ha->prev_topology = 0;
1751         ha->init_cb_size = sizeof(init_cb_t);
1752         ha->link_data_rate = PORT_SPEED_UNKNOWN;
1753         ha->optrom_size = OPTROM_SIZE_2300;
1754
1755         /* Assign ISP specific operations. */
1756         max_id = MAX_TARGETS_2200;
1757         if (IS_QLA2100(ha)) {
1758                 max_id = MAX_TARGETS_2100;
1759                 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1760                 req_length = REQUEST_ENTRY_CNT_2100;
1761                 rsp_length = RESPONSE_ENTRY_CNT_2100;
1762                 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
1763                 ha->gid_list_info_size = 4;
1764                 ha->isp_ops = &qla2100_isp_ops;
1765         } else if (IS_QLA2200(ha)) {
1766                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1767                 req_length = REQUEST_ENTRY_CNT_2200;
1768                 rsp_length = RESPONSE_ENTRY_CNT_2100;
1769                 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
1770                 ha->gid_list_info_size = 4;
1771                 ha->isp_ops = &qla2100_isp_ops;
1772         } else if (IS_QLA23XX(ha)) {
1773                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1774                 req_length = REQUEST_ENTRY_CNT_2200;
1775                 rsp_length = RESPONSE_ENTRY_CNT_2300;
1776                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
1777                 ha->gid_list_info_size = 6;
1778                 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1779                         ha->optrom_size = OPTROM_SIZE_2322;
1780                 ha->isp_ops = &qla2300_isp_ops;
1781         } else if (IS_QLA24XX_TYPE(ha)) {
1782                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1783                 req_length = REQUEST_ENTRY_CNT_24XX;
1784                 rsp_length = RESPONSE_ENTRY_CNT_2300;
1785                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
1786                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1787                 ha->gid_list_info_size = 8;
1788                 ha->optrom_size = OPTROM_SIZE_24XX;
1789                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA24XX;
1790                 ha->isp_ops = &qla24xx_isp_ops;
1791         } else if (IS_QLA25XX(ha)) {
1792                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1793                 req_length = REQUEST_ENTRY_CNT_24XX;
1794                 rsp_length = RESPONSE_ENTRY_CNT_2300;
1795                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
1796                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1797                 ha->gid_list_info_size = 8;
1798                 ha->optrom_size = OPTROM_SIZE_25XX;
1799                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
1800                 ha->isp_ops = &qla25xx_isp_ops;
1801         }
1802
1803         mutex_init(&ha->vport_lock);
1804         init_completion(&ha->mbx_cmd_comp);
1805         complete(&ha->mbx_cmd_comp);
1806         init_completion(&ha->mbx_intr_comp);
1807
1808         set_bit(0, (unsigned long *) ha->vp_idx_map);
1809
1810         ret = qla2x00_mem_alloc(ha, req_length, rsp_length, &req, &rsp);
1811         if (!ret) {
1812                 qla_printk(KERN_WARNING, ha,
1813                     "[ERROR] Failed to allocate memory for adapter\n");
1814
1815                 goto probe_hw_failed;
1816         }
1817
1818         req->max_q_depth = MAX_Q_DEPTH;
1819         if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
1820                 req->max_q_depth = ql2xmaxqdepth;
1821
1822
1823         base_vha = qla2x00_create_host(sht, ha);
1824         if (!base_vha) {
1825                 qla_printk(KERN_WARNING, ha,
1826                     "[ERROR] Failed to allocate memory for scsi_host\n");
1827
1828                 ret = -ENOMEM;
1829                 goto probe_hw_failed;
1830         }
1831
1832         pci_set_drvdata(pdev, base_vha);
1833
1834         qla2x00_config_dma_addressing(base_vha);
1835
1836         host = base_vha->host;
1837         base_vha->req_ques[0] = req->id;
1838         host->can_queue = req->length + 128;
1839         if (IS_QLA2XXX_MIDTYPE(ha))
1840                 base_vha->mgmt_svr_loop_id = 10 + base_vha->vp_idx;
1841         else
1842                 base_vha->mgmt_svr_loop_id = MANAGEMENT_SERVER +
1843                                                 base_vha->vp_idx;
1844         if (IS_QLA2100(ha))
1845                 host->sg_tablesize = 32;
1846         host->max_id = max_id;
1847         host->this_id = 255;
1848         host->cmd_per_lun = 3;
1849         host->unique_id = host->host_no;
1850         host->max_cmd_len = MAX_CMDSZ;
1851         host->max_channel = MAX_BUSES - 1;
1852         host->max_lun = MAX_LUNS;
1853         host->transportt = qla2xxx_transport_template;
1854
1855         /* Set up the irqs */
1856         ret = qla2x00_request_irqs(ha, rsp);
1857         if (ret)
1858                 goto probe_failed;
1859
1860         /* Alloc arrays of request and response ring ptrs */
1861         if (!qla2x00_alloc_queues(ha)) {
1862                 qla_printk(KERN_WARNING, ha,
1863                 "[ERROR] Failed to allocate memory for queue"
1864                 " pointers\n");
1865                 goto probe_failed;
1866         }
1867         ha->rsp_q_map[0] = rsp;
1868         ha->req_q_map[0] = req;
1869
1870         if (ha->mqenable) {
1871                 ha->isp_ops->wrt_req_reg = qla25xx_wrt_req_reg;
1872                 ha->isp_ops->wrt_rsp_reg = qla25xx_wrt_rsp_reg;
1873                 ha->isp_ops->rd_req_reg = qla25xx_rd_req_reg;
1874         }
1875
1876         if (qla2x00_initialize_adapter(base_vha)) {
1877                 qla_printk(KERN_WARNING, ha,
1878                     "Failed to initialize adapter\n");
1879
1880                 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1881                     "Adapter flags %x.\n",
1882                     base_vha->host_no, base_vha->device_flags));
1883
1884                 ret = -ENODEV;
1885                 goto probe_failed;
1886         }
1887
1888         /*
1889          * Startup the kernel thread for this host adapter
1890          */
1891         ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
1892                         "%s_dpc", base_vha->host_str);
1893         if (IS_ERR(ha->dpc_thread)) {
1894                 qla_printk(KERN_WARNING, ha,
1895                     "Unable to start DPC thread!\n");
1896                 ret = PTR_ERR(ha->dpc_thread);
1897                 goto probe_failed;
1898         }
1899
1900         list_add_tail(&base_vha->list, &ha->vp_list);
1901         base_vha->host->irq = ha->pdev->irq;
1902
1903         /* Initialized the timer */
1904         qla2x00_start_timer(base_vha, qla2x00_timer, WATCH_INTERVAL);
1905
1906         DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1907             base_vha->host_no, ha));
1908
1909         base_vha->flags.init_done = 1;
1910         base_vha->flags.online = 1;
1911
1912         ret = scsi_add_host(host, &pdev->dev);
1913         if (ret)
1914                 goto probe_failed;
1915
1916         ha->isp_ops->enable_intrs(ha);
1917
1918         scsi_scan_host(host);
1919
1920         qla2x00_alloc_sysfs_attr(base_vha);
1921
1922         qla2x00_init_host_attr(base_vha);
1923
1924         qla2x00_dfs_setup(base_vha);
1925
1926         qla_printk(KERN_INFO, ha, "\n"
1927             " QLogic Fibre Channel HBA Driver: %s\n"
1928             "  QLogic %s - %s\n"
1929             "  ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1930             qla2x00_version_str, ha->model_number,
1931             ha->model_desc ? ha->model_desc : "", pdev->device,
1932             ha->isp_ops->pci_info_str(base_vha, pci_info), pci_name(pdev),
1933             ha->flags.enable_64bit_addressing ? '+' : '-', base_vha->host_no,
1934             ha->isp_ops->fw_version_str(base_vha, fw_str));
1935
1936         return 0;
1937
1938 probe_failed:
1939         qla2x00_free_que(ha, req, rsp);
1940         qla2x00_free_device(base_vha);
1941
1942         scsi_host_put(base_vha->host);
1943
1944 probe_hw_failed:
1945         if (ha->iobase)
1946                 iounmap(ha->iobase);
1947
1948         pci_release_selected_regions(ha->pdev, ha->bars);
1949         kfree(ha);
1950         ha = NULL;
1951
1952 probe_out:
1953         pci_disable_device(pdev);
1954         return ret;
1955 }
1956
1957 static void
1958 qla2x00_remove_one(struct pci_dev *pdev)
1959 {
1960         scsi_qla_host_t *base_vha, *vha, *temp;
1961         struct qla_hw_data  *ha;
1962
1963         base_vha = pci_get_drvdata(pdev);
1964         ha = base_vha->hw;
1965
1966         list_for_each_entry_safe(vha, temp, &ha->vp_list, list) {
1967                 if (vha && vha->fc_vport)
1968                         fc_vport_terminate(vha->fc_vport);
1969         }
1970
1971         set_bit(UNLOADING, &base_vha->dpc_flags);
1972
1973         qla2x00_dfs_remove(base_vha);
1974
1975         qla84xx_put_chip(base_vha);
1976
1977         qla2x00_free_sysfs_attr(base_vha);
1978
1979         fc_remove_host(base_vha->host);
1980
1981         scsi_remove_host(base_vha->host);
1982
1983         qla2x00_free_device(base_vha);
1984
1985         scsi_host_put(base_vha->host);
1986
1987         if (ha->iobase)
1988                 iounmap(ha->iobase);
1989
1990         if (ha->mqiobase)
1991                 iounmap(ha->mqiobase);
1992
1993         pci_release_selected_regions(ha->pdev, ha->bars);
1994         kfree(ha);
1995         ha = NULL;
1996
1997         pci_disable_device(pdev);
1998         pci_set_drvdata(pdev, NULL);
1999 }
2000
2001 static void
2002 qla2x00_free_device(scsi_qla_host_t *vha)
2003 {
2004         struct qla_hw_data *ha = vha->hw;
2005         qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
2006
2007         /* Disable timer */
2008         if (vha->timer_active)
2009                 qla2x00_stop_timer(vha);
2010
2011         vha->flags.online = 0;
2012
2013         /* Kill the kernel thread for this host */
2014         if (ha->dpc_thread) {
2015                 struct task_struct *t = ha->dpc_thread;
2016
2017                 /*
2018                  * qla2xxx_wake_dpc checks for ->dpc_thread
2019                  * so we need to zero it out.
2020                  */
2021                 ha->dpc_thread = NULL;
2022                 kthread_stop(t);
2023         }
2024
2025         if (ha->flags.fce_enabled)
2026                 qla2x00_disable_fce_trace(vha, NULL, NULL);
2027
2028         if (ha->eft)
2029                 qla2x00_disable_eft_trace(vha);
2030
2031         /* Stop currently executing firmware. */
2032         qla2x00_try_to_stop_firmware(vha);
2033
2034         /* turn-off interrupts on the card */
2035         if (ha->interrupts_on)
2036                 ha->isp_ops->disable_intrs(ha);
2037
2038         qla2x00_free_irqs(vha);
2039
2040         qla2x00_mem_free(ha);
2041
2042         qla2x00_free_queues(ha);
2043 }
2044
2045 static inline void
2046 qla2x00_schedule_rport_del(struct scsi_qla_host *vha, fc_port_t *fcport,
2047     int defer)
2048 {
2049         struct fc_rport *rport;
2050
2051         if (!fcport->rport)
2052                 return;
2053
2054         rport = fcport->rport;
2055         if (defer) {
2056                 spin_lock_irq(vha->host->host_lock);
2057                 fcport->drport = rport;
2058                 spin_unlock_irq(vha->host->host_lock);
2059                 set_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags);
2060                 qla2xxx_wake_dpc(vha);
2061         } else
2062                 fc_remote_port_delete(rport);
2063 }
2064
2065 /*
2066  * qla2x00_mark_device_lost Updates fcport state when device goes offline.
2067  *
2068  * Input: ha = adapter block pointer.  fcport = port structure pointer.
2069  *
2070  * Return: None.
2071  *
2072  * Context:
2073  */
2074 void qla2x00_mark_device_lost(scsi_qla_host_t *vha, fc_port_t *fcport,
2075     int do_login, int defer)
2076 {
2077         if (atomic_read(&fcport->state) == FCS_ONLINE &&
2078             vha->vp_idx == fcport->vp_idx) {
2079                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2080                 qla2x00_schedule_rport_del(vha, fcport, defer);
2081         }
2082         /*
2083          * We may need to retry the login, so don't change the state of the
2084          * port but do the retries.
2085          */
2086         if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
2087                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2088
2089         if (!do_login)
2090                 return;
2091
2092         if (fcport->login_retry == 0) {
2093                 fcport->login_retry = vha->hw->login_retry_count;
2094                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2095
2096                 DEBUG(printk("scsi(%ld): Port login retry: "
2097                     "%02x%02x%02x%02x%02x%02x%02x%02x, "
2098                     "id = 0x%04x retry cnt=%d\n",
2099                     vha->host_no,
2100                     fcport->port_name[0],
2101                     fcport->port_name[1],
2102                     fcport->port_name[2],
2103                     fcport->port_name[3],
2104                     fcport->port_name[4],
2105                     fcport->port_name[5],
2106                     fcport->port_name[6],
2107                     fcport->port_name[7],
2108                     fcport->loop_id,
2109                     fcport->login_retry));
2110         }
2111 }
2112
2113 /*
2114  * qla2x00_mark_all_devices_lost
2115  *      Updates fcport state when device goes offline.
2116  *
2117  * Input:
2118  *      ha = adapter block pointer.
2119  *      fcport = port structure pointer.
2120  *
2121  * Return:
2122  *      None.
2123  *
2124  * Context:
2125  */
2126 void
2127 qla2x00_mark_all_devices_lost(scsi_qla_host_t *vha, int defer)
2128 {
2129         fc_port_t *fcport;
2130
2131         list_for_each_entry(fcport, &vha->vp_fcports, list) {
2132                 if (vha->vp_idx != fcport->vp_idx)
2133                         continue;
2134                 /*
2135                  * No point in marking the device as lost, if the device is
2136                  * already DEAD.
2137                  */
2138                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
2139                         continue;
2140                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
2141                         atomic_set(&fcport->state, FCS_DEVICE_LOST);
2142                         qla2x00_schedule_rport_del(vha, fcport, defer);
2143                 } else
2144                         atomic_set(&fcport->state, FCS_DEVICE_LOST);
2145         }
2146 }
2147
2148 /*
2149 * qla2x00_mem_alloc
2150 *      Allocates adapter memory.
2151 *
2152 * Returns:
2153 *      0  = success.
2154 *      !0  = failure.
2155 */
2156 static int
2157 qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
2158         struct req_que **req, struct rsp_que **rsp)
2159 {
2160         char    name[16];
2161
2162         ha->init_cb_size = sizeof(init_cb_t);
2163         if (IS_QLA2XXX_MIDTYPE(ha))
2164                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
2165
2166         ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
2167                 &ha->init_cb_dma, GFP_KERNEL);
2168         if (!ha->init_cb)
2169                 goto fail;
2170
2171         ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
2172                 &ha->gid_list_dma, GFP_KERNEL);
2173         if (!ha->gid_list)
2174                 goto fail_free_init_cb;
2175
2176         ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
2177         if (!ha->srb_mempool)
2178                 goto fail_free_gid_list;
2179
2180         /* Get memory for cached NVRAM */
2181         ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
2182         if (!ha->nvram)
2183                 goto fail_free_srb_mempool;
2184
2185         snprintf(name, sizeof(name), "%s_%d", QLA2XXX_DRIVER_NAME,
2186                 ha->pdev->device);
2187         ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2188                 DMA_POOL_SIZE, 8, 0);
2189         if (!ha->s_dma_pool)
2190                 goto fail_free_nvram;
2191
2192         /* Allocate memory for SNS commands */
2193         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2194         /* Get consistent memory allocated for SNS commands */
2195                 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
2196                 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
2197                 if (!ha->sns_cmd)
2198                         goto fail_dma_pool;
2199         } else {
2200         /* Get consistent memory allocated for MS IOCB */
2201                 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2202                         &ha->ms_iocb_dma);
2203                 if (!ha->ms_iocb)
2204                         goto fail_dma_pool;
2205         /* Get consistent memory allocated for CT SNS commands */
2206                 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2207                         sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
2208                 if (!ha->ct_sns)
2209                         goto fail_free_ms_iocb;
2210         }
2211
2212         /* Allocate memory for request ring */
2213         *req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
2214         if (!*req) {
2215                 DEBUG(printk("Unable to allocate memory for req\n"));
2216                 goto fail_req;
2217         }
2218         (*req)->length = req_len;
2219         (*req)->ring = dma_alloc_coherent(&ha->pdev->dev,
2220                 ((*req)->length + 1) * sizeof(request_t),
2221                 &(*req)->dma, GFP_KERNEL);
2222         if (!(*req)->ring) {
2223                 DEBUG(printk("Unable to allocate memory for req_ring\n"));
2224                 goto fail_req_ring;
2225         }
2226         /* Allocate memory for response ring */
2227         *rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
2228         if (!*rsp) {
2229                 qla_printk(KERN_WARNING, ha,
2230                         "Unable to allocate memory for rsp\n");
2231                 goto fail_rsp;
2232         }
2233         (*rsp)->hw = ha;
2234         (*rsp)->length = rsp_len;
2235         (*rsp)->ring = dma_alloc_coherent(&ha->pdev->dev,
2236                 ((*rsp)->length + 1) * sizeof(response_t),
2237                 &(*rsp)->dma, GFP_KERNEL);
2238         if (!(*rsp)->ring) {
2239                 qla_printk(KERN_WARNING, ha,
2240                         "Unable to allocate memory for rsp_ring\n");
2241                 goto fail_rsp_ring;
2242         }
2243         (*req)->rsp = *rsp;
2244         (*rsp)->req = *req;
2245         /* Allocate memory for NVRAM data for vports */
2246         if (ha->nvram_npiv_size) {
2247                 ha->npiv_info = kzalloc(sizeof(struct qla_npiv_entry) *
2248                                         ha->nvram_npiv_size, GFP_KERNEL);
2249                 if (!ha->npiv_info) {
2250                         qla_printk(KERN_WARNING, ha,
2251                                 "Unable to allocate memory for npiv info\n");
2252                         goto fail_npiv_info;
2253                 }
2254         } else
2255                 ha->npiv_info = NULL;
2256
2257         INIT_LIST_HEAD(&ha->vp_list);
2258         return 1;
2259
2260 fail_npiv_info:
2261         dma_free_coherent(&ha->pdev->dev, ((*rsp)->length + 1) *
2262                 sizeof(response_t), (*rsp)->ring, (*rsp)->dma);
2263         (*rsp)->ring = NULL;
2264         (*rsp)->dma = 0;
2265 fail_rsp_ring:
2266         kfree(*rsp);
2267 fail_rsp:
2268         dma_free_coherent(&ha->pdev->dev, ((*req)->length + 1) *
2269                 sizeof(request_t), (*req)->ring, (*req)->dma);
2270         (*req)->ring = NULL;
2271         (*req)->dma = 0;
2272 fail_req_ring:
2273         kfree(*req);
2274 fail_req:
2275         dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2276                 ha->ct_sns, ha->ct_sns_dma);
2277         ha->ct_sns = NULL;
2278         ha->ct_sns_dma = 0;
2279 fail_free_ms_iocb:
2280         dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2281         ha->ms_iocb = NULL;
2282         ha->ms_iocb_dma = 0;
2283 fail_dma_pool:
2284         dma_pool_destroy(ha->s_dma_pool);
2285         ha->s_dma_pool = NULL;
2286 fail_free_nvram:
2287         kfree(ha->nvram);
2288         ha->nvram = NULL;
2289 fail_free_srb_mempool:
2290         mempool_destroy(ha->srb_mempool);
2291         ha->srb_mempool = NULL;
2292 fail_free_gid_list:
2293         dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2294         ha->gid_list_dma);
2295         ha->gid_list = NULL;
2296         ha->gid_list_dma = 0;
2297 fail_free_init_cb:
2298         dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
2299         ha->init_cb_dma);
2300         ha->init_cb = NULL;
2301         ha->init_cb_dma = 0;
2302 fail:
2303         DEBUG(printk("%s: Memory allocation failure\n", __func__));
2304         return -ENOMEM;
2305 }
2306
2307 /*
2308 * qla2x00_mem_free
2309 *      Frees all adapter allocated memory.
2310 *
2311 * Input:
2312 *      ha = adapter block pointer.
2313 */
2314 static void
2315 qla2x00_mem_free(struct qla_hw_data *ha)
2316 {
2317         if (ha->srb_mempool)
2318                 mempool_destroy(ha->srb_mempool);
2319
2320         if (ha->fce)
2321                 dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
2322                 ha->fce_dma);
2323
2324         if (ha->fw_dump) {
2325                 if (ha->eft)
2326                         dma_free_coherent(&ha->pdev->dev,
2327                         ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2328                 vfree(ha->fw_dump);
2329         }
2330
2331         if (ha->sns_cmd)
2332                 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2333                 ha->sns_cmd, ha->sns_cmd_dma);
2334
2335         if (ha->ct_sns)
2336                 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2337                 ha->ct_sns, ha->ct_sns_dma);
2338
2339         if (ha->sfp_data)
2340                 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2341
2342         if (ha->ms_iocb)
2343                 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2344
2345         if (ha->s_dma_pool)
2346                 dma_pool_destroy(ha->s_dma_pool);
2347
2348
2349         if (ha->gid_list)
2350                 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2351                 ha->gid_list_dma);
2352
2353
2354         if (ha->init_cb)
2355                 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
2356                 ha->init_cb, ha->init_cb_dma);
2357         vfree(ha->optrom_buffer);
2358         kfree(ha->nvram);
2359         kfree(ha->npiv_info);
2360
2361         ha->srb_mempool = NULL;
2362         ha->eft = NULL;
2363         ha->eft_dma = 0;
2364         ha->sns_cmd = NULL;
2365         ha->sns_cmd_dma = 0;
2366         ha->ct_sns = NULL;
2367         ha->ct_sns_dma = 0;
2368         ha->ms_iocb = NULL;
2369         ha->ms_iocb_dma = 0;
2370         ha->init_cb = NULL;
2371         ha->init_cb_dma = 0;
2372
2373         ha->s_dma_pool = NULL;
2374
2375         ha->gid_list = NULL;
2376         ha->gid_list_dma = 0;
2377
2378         ha->fw_dump = NULL;
2379         ha->fw_dumped = 0;
2380         ha->fw_dump_reading = 0;
2381 }
2382
2383 struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht,
2384                                                 struct qla_hw_data *ha)
2385 {
2386         struct Scsi_Host *host;
2387         struct scsi_qla_host *vha = NULL;
2388
2389         host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
2390         if (host == NULL) {
2391                 printk(KERN_WARNING
2392                 "qla2xxx: Couldn't allocate host from scsi layer!\n");
2393                 goto fail;
2394         }
2395
2396         /* Clear our data area */
2397         vha = shost_priv(host);
2398         memset(vha, 0, sizeof(scsi_qla_host_t));
2399
2400         vha->host = host;
2401         vha->host_no = host->host_no;
2402         vha->hw = ha;
2403
2404         INIT_LIST_HEAD(&vha->vp_fcports);
2405         INIT_LIST_HEAD(&vha->work_list);
2406         INIT_LIST_HEAD(&vha->list);
2407
2408         sprintf(vha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, vha->host_no);
2409         return vha;
2410
2411 fail:
2412         return vha;
2413 }
2414
2415 static struct qla_work_evt *
2416 qla2x00_alloc_work(struct scsi_qla_host *vha, enum qla_work_type type,
2417     int locked)
2418 {
2419         struct qla_work_evt *e;
2420
2421         e = kzalloc(sizeof(struct qla_work_evt), locked ? GFP_ATOMIC:
2422             GFP_KERNEL);
2423         if (!e)
2424                 return NULL;
2425
2426         INIT_LIST_HEAD(&e->list);
2427         e->type = type;
2428         e->flags = QLA_EVT_FLAG_FREE;
2429         return e;
2430 }
2431
2432 static int
2433 qla2x00_post_work(struct scsi_qla_host *vha, struct qla_work_evt *e, int locked)
2434 {
2435         unsigned long uninitialized_var(flags);
2436         struct qla_hw_data *ha = vha->hw;
2437
2438         if (!locked)
2439                 spin_lock_irqsave(&ha->hardware_lock, flags);
2440         list_add_tail(&e->list, &vha->work_list);
2441         qla2xxx_wake_dpc(vha);
2442         if (!locked)
2443                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2444         return QLA_SUCCESS;
2445 }
2446
2447 int
2448 qla2x00_post_aen_work(struct scsi_qla_host *vha, enum fc_host_event_code code,
2449     u32 data)
2450 {
2451         struct qla_work_evt *e;
2452
2453         e = qla2x00_alloc_work(vha, QLA_EVT_AEN, 1);
2454         if (!e)
2455                 return QLA_FUNCTION_FAILED;
2456
2457         e->u.aen.code = code;
2458         e->u.aen.data = data;
2459         return qla2x00_post_work(vha, e, 1);
2460 }
2461
2462 static void
2463 qla2x00_do_work(struct scsi_qla_host *vha)
2464 {
2465         struct qla_work_evt *e;
2466         struct qla_hw_data *ha = vha->hw;
2467
2468         spin_lock_irq(&ha->hardware_lock);
2469         while (!list_empty(&vha->work_list)) {
2470                 e = list_entry(vha->work_list.next, struct qla_work_evt, list);
2471                 list_del_init(&e->list);
2472                 spin_unlock_irq(&ha->hardware_lock);
2473
2474                 switch (e->type) {
2475                 case QLA_EVT_AEN:
2476                         fc_host_post_event(vha->host, fc_get_event_number(),
2477                             e->u.aen.code, e->u.aen.data);
2478                         break;
2479                 }
2480                 if (e->flags & QLA_EVT_FLAG_FREE)
2481                         kfree(e);
2482                 spin_lock_irq(&ha->hardware_lock);
2483         }
2484         spin_unlock_irq(&ha->hardware_lock);
2485 }
2486 /* Relogins all the fcports of a vport
2487  * Context: dpc thread
2488  */
2489 void qla2x00_relogin(struct scsi_qla_host *vha)
2490 {
2491         fc_port_t       *fcport;
2492         uint8_t         status;
2493         uint16_t        next_loopid = 0;
2494         struct qla_hw_data *ha = vha->hw;
2495
2496         list_for_each_entry(fcport, &vha->vp_fcports, list) {
2497         /*
2498          * If the port is not ONLINE then try to login
2499          * to it if we haven't run out of retries.
2500          */
2501                 if (atomic_read(&fcport->state) !=
2502                         FCS_ONLINE && fcport->login_retry) {
2503
2504                         if (fcport->flags & FCF_FABRIC_DEVICE) {
2505                                 if (fcport->flags & FCF_TAPE_PRESENT)
2506                                         ha->isp_ops->fabric_logout(vha,
2507                                                         fcport->loop_id,
2508                                                         fcport->d_id.b.domain,
2509                                                         fcport->d_id.b.area,
2510                                                         fcport->d_id.b.al_pa);
2511
2512                                 status = qla2x00_fabric_login(vha, fcport,
2513                                                         &next_loopid);
2514                         } else
2515                                 status = qla2x00_local_device_login(vha,
2516                                                                 fcport);
2517
2518                         fcport->login_retry--;
2519                         if (status == QLA_SUCCESS) {
2520                                 fcport->old_loop_id = fcport->loop_id;
2521
2522                                 DEBUG(printk("scsi(%ld): port login OK: logged "
2523                                 "in ID 0x%x\n", vha->host_no, fcport->loop_id));
2524
2525                                 qla2x00_update_fcport(vha, fcport);
2526
2527                         } else if (status == 1) {
2528                                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2529                                 /* retry the login again */
2530                                 DEBUG(printk("scsi(%ld): Retrying"
2531                                 " %d login again loop_id 0x%x\n",
2532                                 vha->host_no, fcport->login_retry,
2533                                                 fcport->loop_id));
2534                         } else {
2535                                 fcport->login_retry = 0;
2536                         }
2537
2538                         if (fcport->login_retry == 0 && status != QLA_SUCCESS)
2539                                 fcport->loop_id = FC_NO_LOOP_ID;
2540                 }
2541                 if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
2542                         break;
2543         }
2544 }
2545
2546 /**************************************************************************
2547 * qla2x00_do_dpc
2548 *   This kernel thread is a task that is schedule by the interrupt handler
2549 *   to perform the background processing for interrupts.
2550 *
2551 * Notes:
2552 * This task always run in the context of a kernel thread.  It
2553 * is kick-off by the driver's detect code and starts up
2554 * up one per adapter. It immediately goes to sleep and waits for
2555 * some fibre event.  When either the interrupt handler or
2556 * the timer routine detects a event it will one of the task
2557 * bits then wake us up.
2558 **************************************************************************/
2559 static int
2560 qla2x00_do_dpc(void *data)
2561 {
2562         int             rval;
2563         scsi_qla_host_t *base_vha;
2564         struct qla_hw_data *ha;
2565
2566         ha = (struct qla_hw_data *)data;
2567         base_vha = pci_get_drvdata(ha->pdev);
2568
2569         set_user_nice(current, -20);
2570
2571         while (!kthread_should_stop()) {
2572                 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2573
2574                 set_current_state(TASK_INTERRUPTIBLE);
2575                 schedule();
2576                 __set_current_state(TASK_RUNNING);
2577
2578                 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2579
2580                 /* Initialization not yet finished. Don't do anything yet. */
2581                 if (!base_vha->flags.init_done)
2582                         continue;
2583
2584                 DEBUG3(printk("scsi(%ld): DPC handler\n", base_vha->host_no));
2585
2586                 ha->dpc_active = 1;
2587
2588                 if (ha->flags.mbox_busy) {
2589                         ha->dpc_active = 0;
2590                         continue;
2591                 }
2592
2593                 qla2x00_do_work(base_vha);
2594
2595                 if (test_and_clear_bit(ISP_ABORT_NEEDED,
2596                                                 &base_vha->dpc_flags)) {
2597
2598                         DEBUG(printk("scsi(%ld): dpc: sched "
2599                             "qla2x00_abort_isp ha = %p\n",
2600                             base_vha->host_no, ha));
2601                         if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2602                             &base_vha->dpc_flags))) {
2603
2604                                 if (qla2x00_abort_isp(base_vha)) {
2605                                         /* failed. retry later */
2606                                         set_bit(ISP_ABORT_NEEDED,
2607                                             &base_vha->dpc_flags);
2608                                 }
2609                                 clear_bit(ABORT_ISP_ACTIVE,
2610                                                 &base_vha->dpc_flags);
2611                         }
2612
2613                         DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2614                             base_vha->host_no));
2615                 }
2616
2617                 if (test_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags)) {
2618                         qla2x00_update_fcports(base_vha);
2619                         clear_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
2620                 }
2621
2622                 if (test_and_clear_bit(RESET_MARKER_NEEDED,
2623                                                         &base_vha->dpc_flags) &&
2624                     (!(test_and_set_bit(RESET_ACTIVE, &base_vha->dpc_flags)))) {
2625
2626                         DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2627                             base_vha->host_no));
2628
2629                         qla2x00_rst_aen(base_vha);
2630                         clear_bit(RESET_ACTIVE, &base_vha->dpc_flags);
2631                 }
2632
2633                 /* Retry each device up to login retry count */
2634                 if ((test_and_clear_bit(RELOGIN_NEEDED,
2635                                                 &base_vha->dpc_flags)) &&
2636                     !test_bit(LOOP_RESYNC_NEEDED, &base_vha->dpc_flags) &&
2637                     atomic_read(&base_vha->loop_state) != LOOP_DOWN) {
2638
2639                         DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2640                                         base_vha->host_no));
2641                         qla2x00_relogin(base_vha);
2642
2643                         DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2644                             base_vha->host_no));
2645                 }
2646
2647                 if (test_and_clear_bit(LOOP_RESYNC_NEEDED,
2648                                                         &base_vha->dpc_flags)) {
2649
2650                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2651                                 base_vha->host_no));
2652
2653                         if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2654                             &base_vha->dpc_flags))) {
2655
2656                                 rval = qla2x00_loop_resync(base_vha);
2657
2658                                 clear_bit(LOOP_RESYNC_ACTIVE,
2659                                                 &base_vha->dpc_flags);
2660                         }
2661
2662                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2663                             base_vha->host_no));
2664                 }
2665
2666                 if (test_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags) &&
2667                     atomic_read(&base_vha->loop_state) == LOOP_READY) {
2668                         clear_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags);
2669                         qla2xxx_flash_npiv_conf(base_vha);
2670                 }
2671
2672                 if (!ha->interrupts_on)
2673                         ha->isp_ops->enable_intrs(ha);
2674
2675                 if (test_and_clear_bit(BEACON_BLINK_NEEDED,
2676                                         &base_vha->dpc_flags))
2677                         ha->isp_ops->beacon_blink(base_vha);
2678
2679                 qla2x00_do_dpc_all_vps(base_vha);
2680
2681                 ha->dpc_active = 0;
2682         } /* End of while(1) */
2683
2684         DEBUG(printk("scsi(%ld): DPC handler exiting\n", base_vha->host_no));
2685
2686         /*
2687          * Make sure that nobody tries to wake us up again.
2688          */
2689         ha->dpc_active = 0;
2690
2691         return 0;
2692 }
2693
2694 void
2695 qla2xxx_wake_dpc(struct scsi_qla_host *vha)
2696 {
2697         struct qla_hw_data *ha = vha->hw;
2698         struct task_struct *t = ha->dpc_thread;
2699
2700         if (!test_bit(UNLOADING, &vha->dpc_flags) && t)
2701                 wake_up_process(t);
2702 }
2703
2704 /*
2705 *  qla2x00_rst_aen
2706 *      Processes asynchronous reset.
2707 *
2708 * Input:
2709 *      ha  = adapter block pointer.
2710 */
2711 static void
2712 qla2x00_rst_aen(scsi_qla_host_t *vha)
2713 {
2714         if (vha->flags.online && !vha->flags.reset_active &&
2715             !atomic_read(&vha->loop_down_timer) &&
2716             !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) {
2717                 do {
2718                         clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
2719
2720                         /*
2721                          * Issue marker command only when we are going to start
2722                          * the I/O.
2723                          */
2724                         vha->marker_needed = 1;
2725                 } while (!atomic_read(&vha->loop_down_timer) &&
2726                     (test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags)));
2727         }
2728 }
2729
2730 static void
2731 qla2x00_sp_free_dma(srb_t *sp)
2732 {
2733         struct scsi_cmnd *cmd = sp->cmd;
2734
2735         if (sp->flags & SRB_DMA_VALID) {
2736                 scsi_dma_unmap(cmd);
2737                 sp->flags &= ~SRB_DMA_VALID;
2738         }
2739         CMD_SP(cmd) = NULL;
2740 }
2741
2742 void
2743 qla2x00_sp_compl(struct qla_hw_data *ha, srb_t *sp)
2744 {
2745         struct scsi_cmnd *cmd = sp->cmd;
2746
2747         qla2x00_sp_free_dma(sp);
2748
2749         mempool_free(sp, ha->srb_mempool);
2750
2751         cmd->scsi_done(cmd);
2752 }
2753
2754 /**************************************************************************
2755 *   qla2x00_timer
2756 *
2757 * Description:
2758 *   One second timer
2759 *
2760 * Context: Interrupt
2761 ***************************************************************************/
2762 void
2763 qla2x00_timer(scsi_qla_host_t *vha)
2764 {
2765         unsigned long   cpu_flags = 0;
2766         fc_port_t       *fcport;
2767         int             start_dpc = 0;
2768         int             index;
2769         srb_t           *sp;
2770         int             t;
2771         struct qla_hw_data *ha = vha->hw;
2772         struct req_que *req;
2773         /*
2774          * Ports - Port down timer.
2775          *
2776          * Whenever, a port is in the LOST state we start decrementing its port
2777          * down timer every second until it reaches zero. Once  it reaches zero
2778          * the port it marked DEAD.
2779          */
2780         t = 0;
2781         list_for_each_entry(fcport, &vha->vp_fcports, list) {
2782                 if (fcport->port_type != FCT_TARGET)
2783                         continue;
2784
2785                 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2786
2787                         if (atomic_read(&fcport->port_down_timer) == 0)
2788                                 continue;
2789
2790                         if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
2791                                 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
2792
2793                         DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
2794                             "%d remaining\n",
2795                             vha->host_no,
2796                             t, atomic_read(&fcport->port_down_timer)));
2797                 }
2798                 t++;
2799         } /* End of for fcport  */
2800
2801
2802         /* Loop down handler. */
2803         if (atomic_read(&vha->loop_down_timer) > 0 &&
2804             !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
2805                 && vha->flags.online) {
2806
2807                 if (atomic_read(&vha->loop_down_timer) ==
2808                     vha->loop_down_abort_time) {
2809
2810                         DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2811                             "queues before time expire\n",
2812                             vha->host_no));
2813
2814                         if (!IS_QLA2100(ha) && vha->link_down_timeout)
2815                                 atomic_set(&vha->loop_state, LOOP_DEAD);
2816
2817                         /* Schedule an ISP abort to return any tape commands. */
2818                         /* NPIV - scan physical port only */
2819                         if (!vha->vp_idx) {
2820                                 spin_lock_irqsave(&ha->hardware_lock,
2821                                     cpu_flags);
2822                                 req = ha->req_q_map[0];
2823                                 for (index = 1;
2824                                     index < MAX_OUTSTANDING_COMMANDS;
2825                                     index++) {
2826                                         fc_port_t *sfcp;
2827
2828                                         sp = req->outstanding_cmds[index];
2829                                         if (!sp)
2830                                                 continue;
2831                                         sfcp = sp->fcport;
2832                                         if (!(sfcp->flags & FCF_TAPE_PRESENT))
2833                                                 continue;
2834
2835                                         set_bit(ISP_ABORT_NEEDED,
2836                                                         &vha->dpc_flags);
2837                                         break;
2838                                 }
2839                                 spin_unlock_irqrestore(&ha->hardware_lock,
2840                                                                 cpu_flags);
2841                         }
2842                         set_bit(ABORT_QUEUES_NEEDED, &vha->dpc_flags);
2843                         start_dpc++;
2844                 }
2845
2846                 /* if the loop has been down for 4 minutes, reinit adapter */
2847                 if (atomic_dec_and_test(&vha->loop_down_timer) != 0) {
2848                         DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2849                             "restarting queues.\n",
2850                             vha->host_no));
2851
2852                         set_bit(RESTART_QUEUES_NEEDED, &vha->dpc_flags);
2853                         start_dpc++;
2854
2855                         if (!(vha->device_flags & DFLG_NO_CABLE) &&
2856                             !vha->vp_idx) {
2857                                 DEBUG(printk("scsi(%ld): Loop down - "
2858                                     "aborting ISP.\n",
2859                                     vha->host_no));
2860                                 qla_printk(KERN_WARNING, ha,
2861                                     "Loop down - aborting ISP.\n");
2862
2863                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2864                         }
2865                 }
2866                 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
2867                     vha->host_no,
2868                     atomic_read(&vha->loop_down_timer)));
2869         }
2870
2871         /* Check if beacon LED needs to be blinked */
2872         if (ha->beacon_blink_led == 1) {
2873                 set_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags);
2874                 start_dpc++;
2875         }
2876
2877         /* Process any deferred work. */
2878         if (!list_empty(&vha->work_list))
2879                 start_dpc++;
2880
2881         /* Schedule the DPC routine if needed */
2882         if ((test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
2883             test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) ||
2884             test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags) ||
2885             start_dpc ||
2886             test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) ||
2887             test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags) ||
2888             test_bit(VP_DPC_NEEDED, &vha->dpc_flags) ||
2889             test_bit(RELOGIN_NEEDED, &vha->dpc_flags)))
2890                 qla2xxx_wake_dpc(vha);
2891
2892         qla2x00_restart_timer(vha, WATCH_INTERVAL);
2893 }
2894
2895 /* Firmware interface routines. */
2896
2897 #define FW_BLOBS        6
2898 #define FW_ISP21XX      0
2899 #define FW_ISP22XX      1
2900 #define FW_ISP2300      2
2901 #define FW_ISP2322      3
2902 #define FW_ISP24XX      4
2903 #define FW_ISP25XX      5
2904
2905 #define FW_FILE_ISP21XX "ql2100_fw.bin"
2906 #define FW_FILE_ISP22XX "ql2200_fw.bin"
2907 #define FW_FILE_ISP2300 "ql2300_fw.bin"
2908 #define FW_FILE_ISP2322 "ql2322_fw.bin"
2909 #define FW_FILE_ISP24XX "ql2400_fw.bin"
2910 #define FW_FILE_ISP25XX "ql2500_fw.bin"
2911
2912 static DEFINE_MUTEX(qla_fw_lock);
2913
2914 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
2915         { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
2916         { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
2917         { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
2918         { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
2919         { .name = FW_FILE_ISP24XX, },
2920         { .name = FW_FILE_ISP25XX, },
2921 };
2922
2923 struct fw_blob *
2924 qla2x00_request_firmware(scsi_qla_host_t *vha)
2925 {
2926         struct qla_hw_data *ha = vha->hw;
2927         struct fw_blob *blob;
2928
2929         blob = NULL;
2930         if (IS_QLA2100(ha)) {
2931                 blob = &qla_fw_blobs[FW_ISP21XX];
2932         } else if (IS_QLA2200(ha)) {
2933                 blob = &qla_fw_blobs[FW_ISP22XX];
2934         } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
2935                 blob = &qla_fw_blobs[FW_ISP2300];
2936         } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
2937                 blob = &qla_fw_blobs[FW_ISP2322];
2938         } else if (IS_QLA24XX_TYPE(ha)) {
2939                 blob = &qla_fw_blobs[FW_ISP24XX];
2940         } else if (IS_QLA25XX(ha)) {
2941                 blob = &qla_fw_blobs[FW_ISP25XX];
2942         }
2943
2944         mutex_lock(&qla_fw_lock);
2945         if (blob->fw)
2946                 goto out;
2947
2948         if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
2949                 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
2950                     "(%s).\n", vha->host_no, blob->name));
2951                 blob->fw = NULL;
2952                 blob = NULL;
2953                 goto out;
2954         }
2955
2956 out:
2957         mutex_unlock(&qla_fw_lock);
2958         return blob;
2959 }
2960
2961 static void
2962 qla2x00_release_firmware(void)
2963 {
2964         int idx;
2965
2966         mutex_lock(&qla_fw_lock);
2967         for (idx = 0; idx < FW_BLOBS; idx++)
2968                 if (qla_fw_blobs[idx].fw)
2969                         release_firmware(qla_fw_blobs[idx].fw);
2970         mutex_unlock(&qla_fw_lock);
2971 }
2972
2973 static pci_ers_result_t
2974 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
2975 {
2976         switch (state) {
2977         case pci_channel_io_normal:
2978                 return PCI_ERS_RESULT_CAN_RECOVER;
2979         case pci_channel_io_frozen:
2980                 pci_disable_device(pdev);
2981                 return PCI_ERS_RESULT_NEED_RESET;
2982         case pci_channel_io_perm_failure:
2983                 qla2x00_remove_one(pdev);
2984                 return PCI_ERS_RESULT_DISCONNECT;
2985         }
2986         return PCI_ERS_RESULT_NEED_RESET;
2987 }
2988
2989 static pci_ers_result_t
2990 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
2991 {
2992         int risc_paused = 0;
2993         uint32_t stat;
2994         unsigned long flags;
2995         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
2996         struct qla_hw_data *ha = base_vha->hw;
2997         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2998         struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
2999
3000         spin_lock_irqsave(&ha->hardware_lock, flags);
3001         if (IS_QLA2100(ha) || IS_QLA2200(ha)){
3002                 stat = RD_REG_DWORD(&reg->hccr);
3003                 if (stat & HCCR_RISC_PAUSE)
3004                         risc_paused = 1;
3005         } else if (IS_QLA23XX(ha)) {
3006                 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
3007                 if (stat & HSR_RISC_PAUSED)
3008                         risc_paused = 1;
3009         } else if (IS_FWI2_CAPABLE(ha)) {
3010                 stat = RD_REG_DWORD(&reg24->host_status);
3011                 if (stat & HSRX_RISC_PAUSED)
3012                         risc_paused = 1;
3013         }
3014         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3015
3016         if (risc_paused) {
3017                 qla_printk(KERN_INFO, ha, "RISC paused -- mmio_enabled, "
3018                     "Dumping firmware!\n");
3019                 ha->isp_ops->fw_dump(base_vha, 0);
3020
3021                 return PCI_ERS_RESULT_NEED_RESET;
3022         } else
3023                 return PCI_ERS_RESULT_RECOVERED;
3024 }
3025
3026 static pci_ers_result_t
3027 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
3028 {
3029         pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
3030         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3031         struct qla_hw_data *ha = base_vha->hw;
3032         int rc;
3033
3034         if (ha->mem_only)
3035                 rc = pci_enable_device_mem(pdev);
3036         else
3037                 rc = pci_enable_device(pdev);
3038
3039         if (rc) {
3040                 qla_printk(KERN_WARNING, ha,
3041                     "Can't re-enable PCI device after reset.\n");
3042
3043                 return ret;
3044         }
3045         pci_set_master(pdev);
3046
3047         if (ha->isp_ops->pci_config(base_vha))
3048                 return ret;
3049
3050         set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
3051         if (qla2x00_abort_isp(base_vha) == QLA_SUCCESS)
3052                 ret =  PCI_ERS_RESULT_RECOVERED;
3053         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
3054
3055         return ret;
3056 }
3057
3058 static void
3059 qla2xxx_pci_resume(struct pci_dev *pdev)
3060 {
3061         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3062         struct qla_hw_data *ha = base_vha->hw;
3063         int ret;
3064
3065         ret = qla2x00_wait_for_hba_online(base_vha);
3066         if (ret != QLA_SUCCESS) {
3067                 qla_printk(KERN_ERR, ha,
3068                     "the device failed to resume I/O "
3069                     "from slot/link_reset");
3070         }
3071         pci_cleanup_aer_uncorrect_error_status(pdev);
3072 }
3073
3074 static struct pci_error_handlers qla2xxx_err_handler = {
3075         .error_detected = qla2xxx_pci_error_detected,
3076         .mmio_enabled = qla2xxx_pci_mmio_enabled,
3077         .slot_reset = qla2xxx_pci_slot_reset,
3078         .resume = qla2xxx_pci_resume,
3079 };
3080
3081 static struct pci_device_id qla2xxx_pci_tbl[] = {
3082         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
3083         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
3084         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
3085         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
3086         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
3087         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
3088         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
3089         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
3090         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
3091         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) },
3092         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
3093         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
3094         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
3095         { 0 },
3096 };
3097 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
3098
3099 static struct pci_driver qla2xxx_pci_driver = {
3100         .name           = QLA2XXX_DRIVER_NAME,
3101         .driver         = {
3102                 .owner          = THIS_MODULE,
3103         },
3104         .id_table       = qla2xxx_pci_tbl,
3105         .probe          = qla2x00_probe_one,
3106         .remove         = qla2x00_remove_one,
3107         .err_handler    = &qla2xxx_err_handler,
3108 };
3109
3110 /**
3111  * qla2x00_module_init - Module initialization.
3112  **/
3113 static int __init
3114 qla2x00_module_init(void)
3115 {
3116         int ret = 0;
3117
3118         /* Allocate cache for SRBs. */
3119         srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
3120             SLAB_HWCACHE_ALIGN, NULL);
3121         if (srb_cachep == NULL) {
3122                 printk(KERN_ERR
3123                     "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
3124                 return -ENOMEM;
3125         }
3126
3127         /* Derive version string. */
3128         strcpy(qla2x00_version_str, QLA2XXX_VERSION);
3129         if (ql2xextended_error_logging)
3130                 strcat(qla2x00_version_str, "-debug");
3131
3132         qla2xxx_transport_template =
3133             fc_attach_transport(&qla2xxx_transport_functions);
3134         if (!qla2xxx_transport_template) {
3135                 kmem_cache_destroy(srb_cachep);
3136                 return -ENODEV;
3137         }
3138         qla2xxx_transport_vport_template =
3139             fc_attach_transport(&qla2xxx_transport_vport_functions);
3140         if (!qla2xxx_transport_vport_template) {
3141                 kmem_cache_destroy(srb_cachep);
3142                 fc_release_transport(qla2xxx_transport_template);
3143                 return -ENODEV;
3144         }
3145
3146         printk(KERN_INFO "QLogic Fibre Channel HBA Driver: %s\n",
3147             qla2x00_version_str);
3148         ret = pci_register_driver(&qla2xxx_pci_driver);
3149         if (ret) {
3150                 kmem_cache_destroy(srb_cachep);
3151                 fc_release_transport(qla2xxx_transport_template);
3152                 fc_release_transport(qla2xxx_transport_vport_template);
3153         }
3154         return ret;
3155 }
3156
3157 /**
3158  * qla2x00_module_exit - Module cleanup.
3159  **/
3160 static void __exit
3161 qla2x00_module_exit(void)
3162 {
3163         pci_unregister_driver(&qla2xxx_pci_driver);
3164         qla2x00_release_firmware();
3165         kmem_cache_destroy(srb_cachep);
3166         fc_release_transport(qla2xxx_transport_template);
3167         fc_release_transport(qla2xxx_transport_vport_template);
3168 }
3169
3170 module_init(qla2x00_module_init);
3171 module_exit(qla2x00_module_exit);
3172
3173 MODULE_AUTHOR("QLogic Corporation");
3174 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
3175 MODULE_LICENSE("GPL");
3176 MODULE_VERSION(QLA2XXX_VERSION);
3177 MODULE_FIRMWARE(FW_FILE_ISP21XX);
3178 MODULE_FIRMWARE(FW_FILE_ISP22XX);
3179 MODULE_FIRMWARE(FW_FILE_ISP2300);
3180 MODULE_FIRMWARE(FW_FILE_ISP2322);
3181 MODULE_FIRMWARE(FW_FILE_ISP24XX);
3182 MODULE_FIRMWARE(FW_FILE_ISP25XX);