drivers/scsi/qla2xxx/qla_os.c

   1 /*
   2  * QLogic Fibre Channel HBA Driver
   3  * Copyright (c)  2003-2008 QLogic Corporation
   4  *
   5  * See LICENSE.qla2xxx for copyright and licensing details.
   6  */
   7 #include "qla_def.h"
   8
   9 #include <linux/moduleparam.h>
  10 #include <linux/vmalloc.h>
  11 #include <linux/delay.h>
  12 #include <linux/kthread.h>
  13 #include <linux/mutex.h>
  14
  15 #include <scsi/scsi_tcq.h>
  16 #include <scsi/scsicam.h>
  17 #include <scsi/scsi_transport.h>
  18 #include <scsi/scsi_transport_fc.h>
  19
  20 /*
  21  * Driver version
  22  */
  23 char qla2x00_version_str[40];
  24
  25 /*
  26  * SRB allocation cache
  27  */
  28 static struct kmem_cache *srb_cachep;
  29
  30 int ql2xlogintimeout = 20;
  31 module_param(ql2xlogintimeout, int, S_IRUGO|S_IRUSR);
  32 MODULE_PARM_DESC(ql2xlogintimeout,
  33                 "Login timeout value in seconds.");
  34
  35 int qlport_down_retry;
  36 module_param(qlport_down_retry, int, S_IRUGO|S_IRUSR);
  37 MODULE_PARM_DESC(qlport_down_retry,
  38                 "Maximum number of command retries to a port that returns "
  39                 "a PORT-DOWN status.");
  40
  41 int ql2xplogiabsentdevice;
  42 module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
  43 MODULE_PARM_DESC(ql2xplogiabsentdevice,
  44                 "Option to enable PLOGI to devices that are not present after "
  45                 "a Fabric scan.  This is needed for several broken switches. "
  46                 "Default is 0 - no PLOGI. 1 - perfom PLOGI.");
  47
  48 int ql2xloginretrycount = 0;
  49 module_param(ql2xloginretrycount, int, S_IRUGO|S_IRUSR);
  50 MODULE_PARM_DESC(ql2xloginretrycount,
  51                 "Specify an alternate value for the NVRAM login retry count.");
  52
  53 int ql2xallocfwdump = 1;
  54 module_param(ql2xallocfwdump, int, S_IRUGO|S_IRUSR);
  55 MODULE_PARM_DESC(ql2xallocfwdump,
  56                 "Option to enable allocation of memory for a firmware dump "
  57                 "during HBA initialization.  Memory allocation requirements "
  58                 "vary by ISP type.  Default is 1 - allocate memory.");
  59
  60 int ql2xextended_error_logging;
  61 module_param(ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
  62 MODULE_PARM_DESC(ql2xextended_error_logging,
  63                 "Option to enable extended error logging, "
  64                 "Default is 0 - no logging. 1 - log errors.");
  65
  66 static void qla2x00_free_device(scsi_qla_host_t *);
  67
  68 int ql2xfdmienable=1;
  69 module_param(ql2xfdmienable, int, S_IRUGO|S_IRUSR);
  70 MODULE_PARM_DESC(ql2xfdmienable,
  71                 "Enables FDMI registratons "
  72                 "Default is 0 - no FDMI. 1 - perfom FDMI.");
  73
  74 #define MAX_Q_DEPTH    32
  75 static int ql2xmaxqdepth = MAX_Q_DEPTH;
  76 module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
  77 MODULE_PARM_DESC(ql2xmaxqdepth,
  78                 "Maximum queue depth to report for target devices.");
  79
  80 int ql2xqfulltracking = 1;
  81 module_param(ql2xqfulltracking, int, S_IRUGO|S_IWUSR);
  82 MODULE_PARM_DESC(ql2xqfulltracking,
  83                 "Controls whether the driver tracks queue full status "
  84                 "returns and dynamically adjusts a scsi device's queue "
  85                 "depth.  Default is 1, perform tracking.  Set to 0 to "
  86                 "disable dynamic tracking and adjustment of queue depth.");
  87
  88 int ql2xqfullrampup = 120;
  89 module_param(ql2xqfullrampup, int, S_IRUGO|S_IWUSR);
  90 MODULE_PARM_DESC(ql2xqfullrampup,
  91                 "Number of seconds to wait to begin to ramp-up the queue "
  92                 "depth for a device after a queue-full condition has been "
  93                 "detected.  Default is 120 seconds.");
  94
  95 int ql2xiidmaenable=1;
  96 module_param(ql2xiidmaenable, int, S_IRUGO|S_IRUSR);
  97 MODULE_PARM_DESC(ql2xiidmaenable,
  98                 "Enables iIDMA settings "
  99                 "Default is 1 - perform iIDMA. 0 - no iIDMA.");
 100
 101 int ql2xmaxqueues = 1;
 102 module_param(ql2xmaxqueues, int, S_IRUGO|S_IRUSR);
 103 MODULE_PARM_DESC(ql2xmaxqueues,
 104                 "Enables MQ settings "
 105                 "Default is 1 for single queue. Set it to number \
 106                         of queues in MQ mode.");
 107
 108 int ql2xmultique_tag;
 109 module_param(ql2xmultique_tag, int, S_IRUGO|S_IRUSR);
 110 MODULE_PARM_DESC(ql2xmultique_tag,
 111                 "Enables CPU affinity settings for the driver "
 112                 "Default is 0 for no affinity of request and response IO. "
 113                 "Set it to 1 to turn on the cpu affinity.");
 114
 115 int ql2xfwloadbin;
 116 module_param(ql2xfwloadbin, int, S_IRUGO|S_IRUSR);
 117 MODULE_PARM_DESC(ql2xfwloadbin,
 118                 "Option to specify location from which to load ISP firmware:\n"
 119                 " 2 -- load firmware via the request_firmware() (hotplug)\n"
 120                 "      interface.\n"
 121                 " 1 -- load firmware from flash.\n"
 122                 " 0 -- use default semantics.\n");
 123
 124 /*
 125  * SCSI host template entry points
 126  */
 127 static int qla2xxx_slave_configure(struct scsi_device * device);
 128 static int qla2xxx_slave_alloc(struct scsi_device *);
 129 static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
 130 static void qla2xxx_scan_start(struct Scsi_Host *);
 131 static void qla2xxx_slave_destroy(struct scsi_device *);
 132 static int qla2xxx_queuecommand(struct scsi_cmnd *cmd,
 133                 void (*fn)(struct scsi_cmnd *));
 134 static int qla2xxx_eh_abort(struct scsi_cmnd *);
 135 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
 136 static int qla2xxx_eh_target_reset(struct scsi_cmnd *);
 137 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
 138 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
 139
 140 static int qla2x00_change_queue_depth(struct scsi_device *, int);
 141 static int qla2x00_change_queue_type(struct scsi_device *, int);
 142
 143 struct scsi_host_template qla2xxx_driver_template = {
 144         .module                 = THIS_MODULE,
 145         .name                   = QLA2XXX_DRIVER_NAME,
 146         .queuecommand           = qla2xxx_queuecommand,
 147
 148         .eh_abort_handler       = qla2xxx_eh_abort,
 149         .eh_device_reset_handler = qla2xxx_eh_device_reset,
 150         .eh_target_reset_handler = qla2xxx_eh_target_reset,
 151         .eh_bus_reset_handler   = qla2xxx_eh_bus_reset,
 152         .eh_host_reset_handler  = qla2xxx_eh_host_reset,
 153
 154         .slave_configure        = qla2xxx_slave_configure,
 155
 156         .slave_alloc            = qla2xxx_slave_alloc,
 157         .slave_destroy          = qla2xxx_slave_destroy,
 158         .scan_finished          = qla2xxx_scan_finished,
 159         .scan_start             = qla2xxx_scan_start,
 160         .change_queue_depth     = qla2x00_change_queue_depth,
 161         .change_queue_type      = qla2x00_change_queue_type,
 162         .this_id                = -1,
 163         .cmd_per_lun            = 3,
 164         .use_clustering         = ENABLE_CLUSTERING,
 165         .sg_tablesize           = SG_ALL,
 166
 167         .max_sectors            = 0xFFFF,
 168         .shost_attrs            = qla2x00_host_attrs,
 169 };
 170
 171 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
 172 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
 173
 174 /* TODO Convert to inlines
 175  *
 176  * Timer routines
 177  */
 178
 179 __inline__ void
 180 qla2x00_start_timer(scsi_qla_host_t *vha, void *func, unsigned long interval)
 181 {
 182         init_timer(&vha->timer);
 183         vha->timer.expires = jiffies + interval * HZ;
 184         vha->timer.data = (unsigned long)vha;
 185         vha->timer.function = (void (*)(unsigned long))func;
 186         add_timer(&vha->timer);
 187         vha->timer_active = 1;
 188 }
 189
 190 static inline void
 191 qla2x00_restart_timer(scsi_qla_host_t *vha, unsigned long interval)
 192 {
 193         mod_timer(&vha->timer, jiffies + interval * HZ);
 194 }
 195
 196 static __inline__ void
 197 qla2x00_stop_timer(scsi_qla_host_t *vha)
 198 {
 199         del_timer_sync(&vha->timer);
 200         vha->timer_active = 0;
 201 }
 202
 203 static int qla2x00_do_dpc(void *data);
 204
 205 static void qla2x00_rst_aen(scsi_qla_host_t *);
 206
 207 static int qla2x00_mem_alloc(struct qla_hw_data *, uint16_t, uint16_t,
 208         struct req_que **, struct rsp_que **);
 209 static void qla2x00_mem_free(struct qla_hw_data *);
 210 static void qla2x00_sp_free_dma(srb_t *);
 211
 212 /* -------------------------------------------------------------------------- */
 213 static int qla2x00_alloc_queues(struct qla_hw_data *ha)
 214 {
 215         ha->req_q_map = kzalloc(sizeof(struct req_que *) * ha->max_req_queues,
 216                                 GFP_KERNEL);
 217         if (!ha->req_q_map) {
 218                 qla_printk(KERN_WARNING, ha,
 219                         "Unable to allocate memory for request queue ptrs\n");
 220                 goto fail_req_map;
 221         }
 222
 223         ha->rsp_q_map = kzalloc(sizeof(struct rsp_que *) * ha->max_rsp_queues,
 224                                 GFP_KERNEL);
 225         if (!ha->rsp_q_map) {
 226                 qla_printk(KERN_WARNING, ha,
 227                         "Unable to allocate memory for response queue ptrs\n");
 228                 goto fail_rsp_map;
 229         }
 230         set_bit(0, ha->rsp_qid_map);
 231         set_bit(0, ha->req_qid_map);
 232         return 1;
 233
 234 fail_rsp_map:
 235         kfree(ha->req_q_map);
 236         ha->req_q_map = NULL;
 237 fail_req_map:
 238         return -ENOMEM;
 239 }
 240
 241 static void qla2x00_free_req_que(struct qla_hw_data *ha, struct req_que *req)
 242 {
 243         if (req && req->ring)
 244                 dma_free_coherent(&ha->pdev->dev,
 245                 (req->length + 1) * sizeof(request_t),
 246                 req->ring, req->dma);
 247
 248         kfree(req);
 249         req = NULL;
 250 }
 251
 252 static void qla2x00_free_rsp_que(struct qla_hw_data *ha, struct rsp_que *rsp)
 253 {
 254         if (rsp && rsp->ring)
 255                 dma_free_coherent(&ha->pdev->dev,
 256                 (rsp->length + 1) * sizeof(response_t),
 257                 rsp->ring, rsp->dma);
 258
 259         kfree(rsp);
 260         rsp = NULL;
 261 }
 262
 263 static void qla2x00_free_queues(struct qla_hw_data *ha)
 264 {
 265         struct req_que *req;
 266         struct rsp_que *rsp;
 267         int cnt;
 268
 269         for (cnt = 0; cnt < ha->max_req_queues; cnt++) {
 270                 req = ha->req_q_map[cnt];
 271                 qla2x00_free_req_que(ha, req);
 272         }
 273         kfree(ha->req_q_map);
 274         ha->req_q_map = NULL;
 275
 276         for (cnt = 0; cnt < ha->max_rsp_queues; cnt++) {
 277                 rsp = ha->rsp_q_map[cnt];
 278                 qla2x00_free_rsp_que(ha, rsp);
 279         }
 280         kfree(ha->rsp_q_map);
 281         ha->rsp_q_map = NULL;
 282 }
 283
 284 static int qla25xx_setup_mode(struct scsi_qla_host *vha)
 285 {
 286         uint16_t options = 0;
 287         int ques, req, ret;
 288         struct qla_hw_data *ha = vha->hw;
 289
 290         if (!(ha->fw_attributes & BIT_6)) {
 291                 qla_printk(KERN_INFO, ha,
 292                         "Firmware is not multi-queue capable\n");
 293                 goto fail;
 294         }
 295         if (ql2xmultique_tag) {
 296                 /* create a request queue for IO */
 297                 options |= BIT_7;
 298                 req = qla25xx_create_req_que(ha, options, 0, 0, -1,
 299                         QLA_DEFAULT_QUE_QOS);
 300                 if (!req) {
 301                         qla_printk(KERN_WARNING, ha,
 302                                 "Can't create request queue\n");
 303                         goto fail;
 304                 }
 305                 ha->wq = create_workqueue("qla2xxx_wq");
 306                 vha->req = ha->req_q_map[req];
 307                 options |= BIT_1;
 308                 for (ques = 1; ques < ha->max_rsp_queues; ques++) {
 309                         ret = qla25xx_create_rsp_que(ha, options, 0, 0, req);
 310                         if (!ret) {
 311                                 qla_printk(KERN_WARNING, ha,
 312                                         "Response Queue create failed\n");
 313                                 goto fail2;
 314                         }
 315                 }
 316                 ha->flags.cpu_affinity_enabled = 1;
 317
 318                 DEBUG2(qla_printk(KERN_INFO, ha,
 319                         "CPU affinity mode enabled, no. of response"
 320                         " queues:%d, no. of request queues:%d\n",
 321                         ha->max_rsp_queues, ha->max_req_queues));
 322         }
 323         return 0;
 324 fail2:
 325         qla25xx_delete_queues(vha);
 326         destroy_workqueue(ha->wq);
 327         ha->wq = NULL;
 328 fail:
 329         ha->mqenable = 0;
 330         kfree(ha->req_q_map);
 331         kfree(ha->rsp_q_map);
 332         ha->max_req_queues = ha->max_rsp_queues = 1;
 333         return 1;
 334 }
 335
 336 static char *
 337 qla2x00_pci_info_str(struct scsi_qla_host *vha, char *str)
 338 {
 339         struct qla_hw_data *ha = vha->hw;
 340         static char *pci_bus_modes[] = {
 341                 "33", "66", "100", "133",
 342         };
 343         uint16_t pci_bus;
 344
 345         strcpy(str, "PCI");
 346         pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
 347         if (pci_bus) {
 348                 strcat(str, "-X (");
 349                 strcat(str, pci_bus_modes[pci_bus]);
 350         } else {
 351                 pci_bus = (ha->pci_attr & BIT_8) >> 8;
 352                 strcat(str, " (");
 353                 strcat(str, pci_bus_modes[pci_bus]);
 354         }
 355         strcat(str, " MHz)");
 356
 357         return (str);
 358 }
 359
 360 static char *
 361 qla24xx_pci_info_str(struct scsi_qla_host *vha, char *str)
 362 {
 363         static char *pci_bus_modes[] = { "33", "66", "100", "133", };
 364         struct qla_hw_data *ha = vha->hw;
 365         uint32_t pci_bus;
 366         int pcie_reg;
 367
 368         pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
 369         if (pcie_reg) {
 370                 char lwstr[6];
 371                 uint16_t pcie_lstat, lspeed, lwidth;
 372
 373                 pcie_reg += 0x12;
 374                 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
 375                 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
 376                 lwidth = (pcie_lstat &
 377                     (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
 378
 379                 strcpy(str, "PCIe (");
 380                 if (lspeed == 1)
 381                         strcat(str, "2.5GT/s ");
 382                 else if (lspeed == 2)
 383                         strcat(str, "5.0GT/s ");
 384                 else
 385                         strcat(str, "<unknown> ");
 386                 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
 387                 strcat(str, lwstr);
 388
 389                 return str;
 390         }
 391
 392         strcpy(str, "PCI");
 393         pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
 394         if (pci_bus == 0 || pci_bus == 8) {
 395                 strcat(str, " (");
 396                 strcat(str, pci_bus_modes[pci_bus >> 3]);
 397         } else {
 398                 strcat(str, "-X ");
 399                 if (pci_bus & BIT_2)
 400                         strcat(str, "Mode 2");
 401                 else
 402                         strcat(str, "Mode 1");
 403                 strcat(str, " (");
 404                 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
 405         }
 406         strcat(str, " MHz)");
 407
 408         return str;
 409 }
 410
 411 static char *
 412 qla2x00_fw_version_str(struct scsi_qla_host *vha, char *str)
 413 {
 414         char un_str[10];
 415         struct qla_hw_data *ha = vha->hw;
 416
 417         sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
 418             ha->fw_minor_version,
 419             ha->fw_subminor_version);
 420
 421         if (ha->fw_attributes & BIT_9) {
 422                 strcat(str, "FLX");
 423                 return (str);
 424         }
 425
 426         switch (ha->fw_attributes & 0xFF) {
 427         case 0x7:
 428                 strcat(str, "EF");
 429                 break;
 430         case 0x17:
 431                 strcat(str, "TP");
 432                 break;
 433         case 0x37:
 434                 strcat(str, "IP");
 435                 break;
 436         case 0x77:
 437                 strcat(str, "VI");
 438                 break;
 439         default:
 440                 sprintf(un_str, "(%x)", ha->fw_attributes);
 441                 strcat(str, un_str);
 442                 break;
 443         }
 444         if (ha->fw_attributes & 0x100)
 445                 strcat(str, "X");
 446
 447         return (str);
 448 }
 449
 450 static char *
 451 qla24xx_fw_version_str(struct scsi_qla_host *vha, char *str)
 452 {
 453         struct qla_hw_data *ha = vha->hw;
 454
 455         sprintf(str, "%d.%02d.%02d (%x)", ha->fw_major_version,
 456             ha->fw_minor_version, ha->fw_subminor_version, ha->fw_attributes);
 457         return str;
 458 }
 459
 460 static inline srb_t *
 461 qla2x00_get_new_sp(scsi_qla_host_t *vha, fc_port_t *fcport,
 462     struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 463 {
 464         srb_t *sp;
 465         struct qla_hw_data *ha = vha->hw;
 466
 467         sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
 468         if (!sp)
 469                 return sp;
 470
 471         sp->fcport = fcport;
 472         sp->cmd = cmd;
 473         sp->flags = 0;
 474         CMD_SP(cmd) = (void *)sp;
 475         cmd->scsi_done = done;
 476         sp->ctx = NULL;
 477
 478         return sp;
 479 }
 480
 481 static int
 482 qla2xxx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 483 {
 484         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 485         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 486         struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
 487         struct qla_hw_data *ha = vha->hw;
 488         struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
 489         srb_t *sp;
 490         int rval;
 491
 492         if (unlikely(pci_channel_offline(ha->pdev))) {
 493                 if (ha->pdev->error_state == pci_channel_io_frozen)
 494                         cmd->result = DID_REQUEUE << 16;
 495                 else
 496                         cmd->result = DID_NO_CONNECT << 16;
 497                 goto qc24_fail_command;
 498         }
 499
 500         rval = fc_remote_port_chkready(rport);
 501         if (rval) {
 502                 cmd->result = rval;
 503                 goto qc24_fail_command;
 504         }
 505
 506         /* Close window on fcport/rport state-transitioning. */
 507         if (fcport->drport)
 508                 goto qc24_target_busy;
 509
 510         if (atomic_read(&fcport->state) != FCS_ONLINE) {
 511                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
 512                     atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
 513                         cmd->result = DID_NO_CONNECT << 16;
 514                         goto qc24_fail_command;
 515                 }
 516                 goto qc24_target_busy;
 517         }
 518
 519         spin_unlock_irq(vha->host->host_lock);
 520
 521         sp = qla2x00_get_new_sp(base_vha, fcport, cmd, done);
 522         if (!sp)
 523                 goto qc24_host_busy_lock;
 524
 525         rval = ha->isp_ops->start_scsi(sp);
 526         if (rval != QLA_SUCCESS)
 527                 goto qc24_host_busy_free_sp;
 528
 529         spin_lock_irq(vha->host->host_lock);
 530
 531         return 0;
 532
 533 qc24_host_busy_free_sp:
 534         qla2x00_sp_free_dma(sp);
 535         mempool_free(sp, ha->srb_mempool);
 536
 537 qc24_host_busy_lock:
 538         spin_lock_irq(vha->host->host_lock);
 539         return SCSI_MLQUEUE_HOST_BUSY;
 540
 541 qc24_target_busy:
 542         return SCSI_MLQUEUE_TARGET_BUSY;
 543
 544 qc24_fail_command:
 545         done(cmd);
 546
 547         return 0;
 548 }
 549
 550
 551 /*
 552  * qla2x00_eh_wait_on_command
 553  *    Waits for the command to be returned by the Firmware for some
 554  *    max time.
 555  *
 556  * Input:
 557  *    cmd = Scsi Command to wait on.
 558  *
 559  * Return:
 560  *    Not Found : 0
 561  *    Found : 1
 562  */
 563 static int
 564 qla2x00_eh_wait_on_command(struct scsi_cmnd *cmd)
 565 {
 566 #define ABORT_POLLING_PERIOD    1000
 567 #define ABORT_WAIT_ITER         ((10 * 1000) / (ABORT_POLLING_PERIOD))
 568         unsigned long wait_iter = ABORT_WAIT_ITER;
 569         int ret = QLA_SUCCESS;
 570
 571         while (CMD_SP(cmd)) {
 572                 msleep(ABORT_POLLING_PERIOD);
 573
 574                 if (--wait_iter)
 575                         break;
 576         }
 577         if (CMD_SP(cmd))
 578                 ret = QLA_FUNCTION_FAILED;
 579
 580         return ret;
 581 }
 582
 583 /*
 584  * qla2x00_wait_for_hba_online
 585  *    Wait till the HBA is online after going through
 586  *    <= MAX_RETRIES_OF_ISP_ABORT  or
 587  *    finally HBA is disabled ie marked offline
 588  *
 589  * Input:
 590  *     ha - pointer to host adapter structure
 591  *
 592  * Note:
 593  *    Does context switching-Release SPIN_LOCK
 594  *    (if any) before calling this routine.
 595  *
 596  * Return:
 597  *    Success (Adapter is online) : 0
 598  *    Failed  (Adapter is offline/disabled) : 1
 599  */
 600 int
 601 qla2x00_wait_for_hba_online(scsi_qla_host_t *vha)
 602 {
 603         int             return_status;
 604         unsigned long   wait_online;
 605         struct qla_hw_data *ha = vha->hw;
 606         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 607
 608         wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 609         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 610             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 611             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 612             ha->dpc_active) && time_before(jiffies, wait_online)) {
 613
 614                 msleep(1000);
 615         }
 616         if (base_vha->flags.online)
 617                 return_status = QLA_SUCCESS;
 618         else
 619                 return_status = QLA_FUNCTION_FAILED;
 620
 621         return (return_status);
 622 }
 623
 624 int
 625 qla2x00_wait_for_chip_reset(scsi_qla_host_t *vha)
 626 {
 627         int             return_status;
 628         unsigned long   wait_reset;
 629         struct qla_hw_data *ha = vha->hw;
 630         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 631
 632         wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 633         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 634             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 635             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 636             ha->dpc_active) && time_before(jiffies, wait_reset)) {
 637
 638                 msleep(1000);
 639
 640                 if (!test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags) &&
 641                     ha->flags.chip_reset_done)
 642                         break;
 643         }
 644         if (ha->flags.chip_reset_done)
 645                 return_status = QLA_SUCCESS;
 646         else
 647                 return_status = QLA_FUNCTION_FAILED;
 648
 649         return return_status;
 650 }
 651
 652 /*
 653  * qla2x00_wait_for_loop_ready
 654  *    Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
 655  *    to be in LOOP_READY state.
 656  * Input:
 657  *     ha - pointer to host adapter structure
 658  *
 659  * Note:
 660  *    Does context switching-Release SPIN_LOCK
 661  *    (if any) before calling this routine.
 662  *
 663  *
 664  * Return:
 665  *    Success (LOOP_READY) : 0
 666  *    Failed  (LOOP_NOT_READY) : 1
 667  */
 668 static inline int
 669 qla2x00_wait_for_loop_ready(scsi_qla_host_t *vha)
 670 {
 671         int      return_status = QLA_SUCCESS;
 672         unsigned long loop_timeout ;
 673         struct qla_hw_data *ha = vha->hw;
 674         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 675
 676         /* wait for 5 min at the max for loop to be ready */
 677         loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 678
 679         while ((!atomic_read(&base_vha->loop_down_timer) &&
 680             atomic_read(&base_vha->loop_state) == LOOP_DOWN) ||
 681             atomic_read(&base_vha->loop_state) != LOOP_READY) {
 682                 if (atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
 683                         return_status = QLA_FUNCTION_FAILED;
 684                         break;
 685                 }
 686                 msleep(1000);
 687                 if (time_after_eq(jiffies, loop_timeout)) {
 688                         return_status = QLA_FUNCTION_FAILED;
 689                         break;
 690                 }
 691         }
 692         return (return_status);
 693 }
 694
 695 void
 696 qla2x00_abort_fcport_cmds(fc_port_t *fcport)
 697 {
 698         int cnt;
 699         unsigned long flags;
 700         srb_t *sp;
 701         scsi_qla_host_t *vha = fcport->vha;
 702         struct qla_hw_data *ha = vha->hw;
 703         struct req_que *req;
 704
 705         spin_lock_irqsave(&ha->hardware_lock, flags);
 706         req = vha->req;
 707         for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
 708                 sp = req->outstanding_cmds[cnt];
 709                 if (!sp)
 710                         continue;
 711                 if (sp->fcport != fcport)
 712                         continue;
 713                 if (sp->ctx)
 714                         continue;
 715
 716                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 717                 if (ha->isp_ops->abort_command(sp)) {
 718                         DEBUG2(qla_printk(KERN_WARNING, ha,
 719                         "Abort failed --  %lx\n",
 720                         sp->cmd->serial_number));
 721                 } else {
 722                         if (qla2x00_eh_wait_on_command(sp->cmd) !=
 723                                 QLA_SUCCESS)
 724                                 DEBUG2(qla_printk(KERN_WARNING, ha,
 725                                 "Abort failed while waiting --  %lx\n",
 726                                 sp->cmd->serial_number));
 727                 }
 728                 spin_lock_irqsave(&ha->hardware_lock, flags);
 729         }
 730         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 731 }
 732
 733 static void
 734 qla2x00_block_error_handler(struct scsi_cmnd *cmnd)
 735 {
 736         struct Scsi_Host *shost = cmnd->device->host;
 737         struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
 738         unsigned long flags;
 739
 740         spin_lock_irqsave(shost->host_lock, flags);
 741         while (rport->port_state == FC_PORTSTATE_BLOCKED) {
 742                 spin_unlock_irqrestore(shost->host_lock, flags);
 743                 msleep(1000);
 744                 spin_lock_irqsave(shost->host_lock, flags);
 745         }
 746         spin_unlock_irqrestore(shost->host_lock, flags);
 747         return;
 748 }
 749
 750 /**************************************************************************
 751 * qla2xxx_eh_abort
 752 *
 753 * Description:
 754 *    The abort function will abort the specified command.
 755 *
 756 * Input:
 757 *    cmd = Linux SCSI command packet to be aborted.
 758 *
 759 * Returns:
 760 *    Either SUCCESS or FAILED.
 761 *
 762 * Note:
 763 *    Only return FAILED if command not returned by firmware.
 764 **************************************************************************/
 765 static int
 766 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
 767 {
 768         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 769         srb_t *sp;
 770         int ret, i;
 771         unsigned int id, lun;
 772         unsigned long serial;
 773         unsigned long flags;
 774         int wait = 0;
 775         struct qla_hw_data *ha = vha->hw;
 776         struct req_que *req = vha->req;
 777         srb_t *spt;
 778
 779         qla2x00_block_error_handler(cmd);
 780
 781         if (!CMD_SP(cmd))
 782                 return SUCCESS;
 783
 784         ret = SUCCESS;
 785
 786         id = cmd->device->id;
 787         lun = cmd->device->lun;
 788         serial = cmd->serial_number;
 789         spt = (srb_t *) CMD_SP(cmd);
 790         if (!spt)
 791                 return SUCCESS;
 792
 793         /* Check active list for command command. */
 794         spin_lock_irqsave(&ha->hardware_lock, flags);
 795         for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
 796                 sp = req->outstanding_cmds[i];
 797
 798                 if (sp == NULL)
 799                         continue;
 800                 if (sp->ctx)
 801                         continue;
 802                 if (sp->cmd != cmd)
 803                         continue;
 804
 805                 DEBUG2(printk("%s(%ld): aborting sp %p from RISC."
 806                 " pid=%ld.\n", __func__, vha->host_no, sp, serial));
 807
 808                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 809                 if (ha->isp_ops->abort_command(sp)) {
 810                         DEBUG2(printk("%s(%ld): abort_command "
 811                         "mbx failed.\n", __func__, vha->host_no));
 812                         ret = FAILED;
 813                 } else {
 814                         DEBUG3(printk("%s(%ld): abort_command "
 815                         "mbx success.\n", __func__, vha->host_no));
 816                         wait = 1;
 817                 }
 818                 spin_lock_irqsave(&ha->hardware_lock, flags);
 819                 break;
 820         }
 821         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 822
 823         /* Wait for the command to be returned. */
 824         if (wait) {
 825                 if (qla2x00_eh_wait_on_command(cmd) != QLA_SUCCESS) {
 826                         qla_printk(KERN_ERR, ha,
 827                             "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
 828                             "%x.\n", vha->host_no, id, lun, serial, ret);
 829                         ret = FAILED;
 830                 }
 831         }
 832
 833         qla_printk(KERN_INFO, ha,
 834             "scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n",
 835             vha->host_no, id, lun, wait, serial, ret);
 836
 837         return ret;
 838 }
 839
 840 enum nexus_wait_type {
 841         WAIT_HOST = 0,
 842         WAIT_TARGET,
 843         WAIT_LUN,
 844 };
 845
 846 static int
 847 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *vha, unsigned int t,
 848         unsigned int l, srb_t *sp, enum nexus_wait_type type)
 849 {
 850         int cnt, match, status;
 851         unsigned long flags;
 852         struct qla_hw_data *ha = vha->hw;
 853         struct req_que *req;
 854
 855         status = QLA_SUCCESS;
 856         if (!sp)
 857                 return status;
 858
 859         spin_lock_irqsave(&ha->hardware_lock, flags);
 860         req = vha->req;
 861         for (cnt = 1; status == QLA_SUCCESS &&
 862                 cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
 863                 sp = req->outstanding_cmds[cnt];
 864                 if (!sp)
 865                         continue;
 866                 if (sp->ctx)
 867                         continue;
 868                 if (vha->vp_idx != sp->fcport->vha->vp_idx)
 869                         continue;
 870                 match = 0;
 871                 switch (type) {
 872                 case WAIT_HOST:
 873                         match = 1;
 874                         break;
 875                 case WAIT_TARGET:
 876                         match = sp->cmd->device->id == t;
 877                         break;
 878                 case WAIT_LUN:
 879                         match = (sp->cmd->device->id == t &&
 880                                 sp->cmd->device->lun == l);
 881                         break;
 882                 }
 883                 if (!match)
 884                         continue;
 885
 886                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 887                 status = qla2x00_eh_wait_on_command(sp->cmd);
 888                 spin_lock_irqsave(&ha->hardware_lock, flags);
 889         }
 890         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 891
 892         return status;
 893 }
 894
 895 static char *reset_errors[] = {
 896         "HBA not online",
 897         "HBA not ready",
 898         "Task management failed",
 899         "Waiting for command completions",
 900 };
 901
 902 static int
 903 __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
 904     struct scsi_cmnd *cmd, int (*do_reset)(struct fc_port *, unsigned int, int))
 905 {
 906         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 907         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 908         int err;
 909
 910         qla2x00_block_error_handler(cmd);
 911
 912         if (!fcport)
 913                 return FAILED;
 914
 915         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET ISSUED.\n",
 916             vha->host_no, cmd->device->id, cmd->device->lun, name);
 917
 918         err = 0;
 919         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
 920                 goto eh_reset_failed;
 921         err = 1;
 922         if (qla2x00_wait_for_loop_ready(vha) != QLA_SUCCESS)
 923                 goto eh_reset_failed;
 924         err = 2;
 925         if (do_reset(fcport, cmd->device->lun, cmd->request->cpu + 1)
 926                 != QLA_SUCCESS)
 927                 goto eh_reset_failed;
 928         err = 3;
 929         if (qla2x00_eh_wait_for_pending_commands(vha, cmd->device->id,
 930             cmd->device->lun, (srb_t *) CMD_SP(cmd), type) != QLA_SUCCESS)
 931                 goto eh_reset_failed;
 932
 933         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET SUCCEEDED.\n",
 934             vha->host_no, cmd->device->id, cmd->device->lun, name);
 935
 936         return SUCCESS;
 937
 938  eh_reset_failed:
 939         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET FAILED: %s.\n"
 940             , vha->host_no, cmd->device->id, cmd->device->lun, name,
 941             reset_errors[err]);
 942         return FAILED;
 943 }
 944
 945 static int
 946 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
 947 {
 948         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 949         struct qla_hw_data *ha = vha->hw;
 950
 951         return __qla2xxx_eh_generic_reset("DEVICE", WAIT_LUN, cmd,
 952             ha->isp_ops->lun_reset);
 953 }
 954
 955 static int
 956 qla2xxx_eh_target_reset(struct scsi_cmnd *cmd)
 957 {
 958         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 959         struct qla_hw_data *ha = vha->hw;
 960
 961         return __qla2xxx_eh_generic_reset("TARGET", WAIT_TARGET, cmd,
 962             ha->isp_ops->target_reset);
 963 }
 964
 965 /**************************************************************************
 966 * qla2xxx_eh_bus_reset
 967 *
 968 * Description:
 969 *    The bus reset function will reset the bus and abort any executing
 970 *    commands.
 971 *
 972 * Input:
 973 *    cmd = Linux SCSI command packet of the command that cause the
 974 *          bus reset.
 975 *
 976 * Returns:
 977 *    SUCCESS/FAILURE (defined as macro in scsi.h).
 978 *
 979 **************************************************************************/
 980 static int
 981 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
 982 {
 983         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 984         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 985         int ret = FAILED;
 986         unsigned int id, lun;
 987         unsigned long serial;
 988         srb_t *sp = (srb_t *) CMD_SP(cmd);
 989
 990         qla2x00_block_error_handler(cmd);
 991
 992         id = cmd->device->id;
 993         lun = cmd->device->lun;
 994         serial = cmd->serial_number;
 995
 996         if (!fcport)
 997                 return ret;
 998
 999         qla_printk(KERN_INFO, vha->hw,
1000             "scsi(%ld:%d:%d): BUS RESET ISSUED.\n", vha->host_no, id, lun);
1001
1002         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1003                 DEBUG2(printk("%s failed:board disabled\n",__func__));
1004                 goto eh_bus_reset_done;
1005         }
1006
1007         if (qla2x00_wait_for_loop_ready(vha) == QLA_SUCCESS) {
1008                 if (qla2x00_loop_reset(vha) == QLA_SUCCESS)
1009                         ret = SUCCESS;
1010         }
1011         if (ret == FAILED)
1012                 goto eh_bus_reset_done;
1013
1014         /* Flush outstanding commands. */
1015         if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, sp, WAIT_HOST) !=
1016             QLA_SUCCESS)
1017                 ret = FAILED;
1018
1019 eh_bus_reset_done:
1020         qla_printk(KERN_INFO, vha->hw, "%s: reset %s\n", __func__,
1021             (ret == FAILED) ? "failed" : "succeded");
1022
1023         return ret;
1024 }
1025
1026 /**************************************************************************
1027 * qla2xxx_eh_host_reset
1028 *
1029 * Description:
1030 *    The reset function will reset the Adapter.
1031 *
1032 * Input:
1033 *      cmd = Linux SCSI command packet of the command that cause the
1034 *            adapter reset.
1035 *
1036 * Returns:
1037 *      Either SUCCESS or FAILED.
1038 *
1039 * Note:
1040 **************************************************************************/
1041 static int
1042 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
1043 {
1044         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1045         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1046         struct qla_hw_data *ha = vha->hw;
1047         int ret = FAILED;
1048         unsigned int id, lun;
1049         unsigned long serial;
1050         srb_t *sp = (srb_t *) CMD_SP(cmd);
1051         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1052
1053         qla2x00_block_error_handler(cmd);
1054
1055         id = cmd->device->id;
1056         lun = cmd->device->lun;
1057         serial = cmd->serial_number;
1058
1059         if (!fcport)
1060                 return ret;
1061
1062         qla_printk(KERN_INFO, ha,
1063             "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", vha->host_no, id, lun);
1064
1065         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
1066                 goto eh_host_reset_lock;
1067
1068         /*
1069          * Fixme-may be dpc thread is active and processing
1070          * loop_resync,so wait a while for it to
1071          * be completed and then issue big hammer.Otherwise
1072          * it may cause I/O failure as big hammer marks the
1073          * devices as lost kicking of the port_down_timer
1074          * while dpc is stuck for the mailbox to complete.
1075          */
1076         qla2x00_wait_for_loop_ready(vha);
1077         if (vha != base_vha) {
1078                 if (qla2x00_vp_abort_isp(vha))
1079                         goto eh_host_reset_lock;
1080         } else {
1081                 if (ha->wq)
1082                         flush_workqueue(ha->wq);
1083
1084                 set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1085                 if (qla2x00_abort_isp(base_vha)) {
1086                         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1087                         /* failed. schedule dpc to try */
1088                         set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags);
1089
1090                         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
1091                                 goto eh_host_reset_lock;
1092                 }
1093                 clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1094         }
1095
1096         /* Waiting for command to be returned to OS.*/
1097         if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, sp, WAIT_HOST) ==
1098                 QLA_SUCCESS)
1099                 ret = SUCCESS;
1100
1101 eh_host_reset_lock:
1102         qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
1103             (ret == FAILED) ? "failed" : "succeded");
1104
1105         return ret;
1106 }
1107
1108 /*
1109 * qla2x00_loop_reset
1110 *      Issue loop reset.
1111 *
1112 * Input:
1113 *      ha = adapter block pointer.
1114 *
1115 * Returns:
1116 *      0 = success
1117 */
1118 int
1119 qla2x00_loop_reset(scsi_qla_host_t *vha)
1120 {
1121         int ret;
1122         struct fc_port *fcport;
1123         struct qla_hw_data *ha = vha->hw;
1124
1125         if (ha->flags.enable_lip_full_login && !vha->vp_idx &&
1126             !IS_QLA81XX(ha)) {
1127                 ret = qla2x00_full_login_lip(vha);
1128                 if (ret != QLA_SUCCESS) {
1129                         DEBUG2_3(printk("%s(%ld): failed: "
1130                             "full_login_lip=%d.\n", __func__, vha->host_no,
1131                             ret));
1132                 }
1133                 atomic_set(&vha->loop_state, LOOP_DOWN);
1134                 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1135                 qla2x00_mark_all_devices_lost(vha, 0);
1136                 qla2x00_wait_for_loop_ready(vha);
1137         }
1138
1139         if (ha->flags.enable_lip_reset && !vha->vp_idx) {
1140                 ret = qla2x00_lip_reset(vha);
1141                 if (ret != QLA_SUCCESS) {
1142                         DEBUG2_3(printk("%s(%ld): failed: "
1143                             "lip_reset=%d.\n", __func__, vha->host_no, ret));
1144                 } else
1145                         qla2x00_wait_for_loop_ready(vha);
1146         }
1147
1148         if (ha->flags.enable_target_reset) {
1149                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
1150                         if (fcport->port_type != FCT_TARGET)
1151                                 continue;
1152
1153                         ret = ha->isp_ops->target_reset(fcport, 0, 0);
1154                         if (ret != QLA_SUCCESS) {
1155                                 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1156                                     "target_reset=%d d_id=%x.\n", __func__,
1157                                     vha->host_no, ret, fcport->d_id.b24));
1158                         }
1159                 }
1160         }
1161         /* Issue marker command only when we are going to start the I/O */
1162         vha->marker_needed = 1;
1163
1164         return QLA_SUCCESS;
1165 }
1166
1167 void
1168 qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res)
1169 {
1170         int que, cnt;
1171         unsigned long flags;
1172         srb_t *sp;
1173         struct qla_hw_data *ha = vha->hw;
1174         struct req_que *req;
1175
1176         spin_lock_irqsave(&ha->hardware_lock, flags);
1177         for (que = 0; que < ha->max_req_queues; que++) {
1178                 req = ha->req_q_map[que];
1179                 if (!req)
1180                         continue;
1181                 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
1182                         sp = req->outstanding_cmds[cnt];
1183                         if (sp) {
1184                                 req->outstanding_cmds[cnt] = NULL;
1185                                 sp->cmd->result = res;
1186                                 qla2x00_sp_compl(ha, sp);
1187                         }
1188                 }
1189         }
1190         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1191 }
1192
1193 static int
1194 qla2xxx_slave_alloc(struct scsi_device *sdev)
1195 {
1196         struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1197
1198         if (!rport || fc_remote_port_chkready(rport))
1199                 return -ENXIO;
1200
1201         sdev->hostdata = *(fc_port_t **)rport->dd_data;
1202
1203         return 0;
1204 }
1205
1206 static int
1207 qla2xxx_slave_configure(struct scsi_device *sdev)
1208 {
1209         scsi_qla_host_t *vha = shost_priv(sdev->host);
1210         struct qla_hw_data *ha = vha->hw;
1211         struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1212         struct req_que *req = vha->req;
1213
1214         if (sdev->tagged_supported)
1215                 scsi_activate_tcq(sdev, req->max_q_depth);
1216         else
1217                 scsi_deactivate_tcq(sdev, req->max_q_depth);
1218
1219         rport->dev_loss_tmo = ha->port_down_retry_count;
1220
1221         return 0;
1222 }
1223
1224 static void
1225 qla2xxx_slave_destroy(struct scsi_device *sdev)
1226 {
1227         sdev->hostdata = NULL;
1228 }
1229
1230 static int
1231 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1232 {
1233         scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1234         return sdev->queue_depth;
1235 }
1236
1237 static int
1238 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1239 {
1240         if (sdev->tagged_supported) {
1241                 scsi_set_tag_type(sdev, tag_type);
1242                 if (tag_type)
1243                         scsi_activate_tcq(sdev, sdev->queue_depth);
1244                 else
1245                         scsi_deactivate_tcq(sdev, sdev->queue_depth);
1246         } else
1247                 tag_type = 0;
1248
1249         return tag_type;
1250 }
1251
1252 /**
1253  * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1254  * @ha: HA context
1255  *
1256  * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1257  * supported addressing method.
1258  */
1259 static void
1260 qla2x00_config_dma_addressing(struct qla_hw_data *ha)
1261 {
1262         /* Assume a 32bit DMA mask. */
1263         ha->flags.enable_64bit_addressing = 0;
1264
1265         if (!dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(64))) {
1266                 /* Any upper-dword bits set? */
1267                 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1268                     !pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
1269                         /* Ok, a 64bit DMA mask is applicable. */
1270                         ha->flags.enable_64bit_addressing = 1;
1271                         ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1272                         ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1273                         return;
1274                 }
1275         }
1276
1277         dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(32));
1278         pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(32));
1279 }
1280
1281 static void
1282 qla2x00_enable_intrs(struct qla_hw_data *ha)
1283 {
1284         unsigned long flags = 0;
1285         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1286
1287         spin_lock_irqsave(&ha->hardware_lock, flags);
1288         ha->interrupts_on = 1;
1289         /* enable risc and host interrupts */
1290         WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1291         RD_REG_WORD(&reg->ictrl);
1292         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1293
1294 }
1295
1296 static void
1297 qla2x00_disable_intrs(struct qla_hw_data *ha)
1298 {
1299         unsigned long flags = 0;
1300         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1301
1302         spin_lock_irqsave(&ha->hardware_lock, flags);
1303         ha->interrupts_on = 0;
1304         /* disable risc and host interrupts */
1305         WRT_REG_WORD(&reg->ictrl, 0);
1306         RD_REG_WORD(&reg->ictrl);
1307         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1308 }
1309
1310 static void
1311 qla24xx_enable_intrs(struct qla_hw_data *ha)
1312 {
1313         unsigned long flags = 0;
1314         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1315
1316         spin_lock_irqsave(&ha->hardware_lock, flags);
1317         ha->interrupts_on = 1;
1318         WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1319         RD_REG_DWORD(&reg->ictrl);
1320         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1321 }
1322
1323 static void
1324 qla24xx_disable_intrs(struct qla_hw_data *ha)
1325 {
1326         unsigned long flags = 0;
1327         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1328
1329         if (IS_NOPOLLING_TYPE(ha))
1330                 return;
1331         spin_lock_irqsave(&ha->hardware_lock, flags);
1332         ha->interrupts_on = 0;
1333         WRT_REG_DWORD(&reg->ictrl, 0);
1334         RD_REG_DWORD(&reg->ictrl);
1335         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1336 }
1337
1338 static struct isp_operations qla2100_isp_ops = {
1339         .pci_config             = qla2100_pci_config,
1340         .reset_chip             = qla2x00_reset_chip,
1341         .chip_diag              = qla2x00_chip_diag,
1342         .config_rings           = qla2x00_config_rings,
1343         .reset_adapter          = qla2x00_reset_adapter,
1344         .nvram_config           = qla2x00_nvram_config,
1345         .update_fw_options      = qla2x00_update_fw_options,
1346         .load_risc              = qla2x00_load_risc,
1347         .pci_info_str           = qla2x00_pci_info_str,
1348         .fw_version_str         = qla2x00_fw_version_str,
1349         .intr_handler           = qla2100_intr_handler,
1350         .enable_intrs           = qla2x00_enable_intrs,
1351         .disable_intrs          = qla2x00_disable_intrs,
1352         .abort_command          = qla2x00_abort_command,
1353         .target_reset           = qla2x00_abort_target,
1354         .lun_reset              = qla2x00_lun_reset,
1355         .fabric_login           = qla2x00_login_fabric,
1356         .fabric_logout          = qla2x00_fabric_logout,
1357         .calc_req_entries       = qla2x00_calc_iocbs_32,
1358         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1359         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1360         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1361         .read_nvram             = qla2x00_read_nvram_data,
1362         .write_nvram            = qla2x00_write_nvram_data,
1363         .fw_dump                = qla2100_fw_dump,
1364         .beacon_on              = NULL,
1365         .beacon_off             = NULL,
1366         .beacon_blink           = NULL,
1367         .read_optrom            = qla2x00_read_optrom_data,
1368         .write_optrom           = qla2x00_write_optrom_data,
1369         .get_flash_version      = qla2x00_get_flash_version,
1370         .start_scsi             = qla2x00_start_scsi,
1371 };
1372
1373 static struct isp_operations qla2300_isp_ops = {
1374         .pci_config             = qla2300_pci_config,
1375         .reset_chip             = qla2x00_reset_chip,
1376         .chip_diag              = qla2x00_chip_diag,
1377         .config_rings           = qla2x00_config_rings,
1378         .reset_adapter          = qla2x00_reset_adapter,
1379         .nvram_config           = qla2x00_nvram_config,
1380         .update_fw_options      = qla2x00_update_fw_options,
1381         .load_risc              = qla2x00_load_risc,
1382         .pci_info_str           = qla2x00_pci_info_str,
1383         .fw_version_str         = qla2x00_fw_version_str,
1384         .intr_handler           = qla2300_intr_handler,
1385         .enable_intrs           = qla2x00_enable_intrs,
1386         .disable_intrs          = qla2x00_disable_intrs,
1387         .abort_command          = qla2x00_abort_command,
1388         .target_reset           = qla2x00_abort_target,
1389         .lun_reset              = qla2x00_lun_reset,
1390         .fabric_login           = qla2x00_login_fabric,
1391         .fabric_logout          = qla2x00_fabric_logout,
1392         .calc_req_entries       = qla2x00_calc_iocbs_32,
1393         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1394         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1395         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1396         .read_nvram             = qla2x00_read_nvram_data,
1397         .write_nvram            = qla2x00_write_nvram_data,
1398         .fw_dump                = qla2300_fw_dump,
1399         .beacon_on              = qla2x00_beacon_on,
1400         .beacon_off             = qla2x00_beacon_off,
1401         .beacon_blink           = qla2x00_beacon_blink,
1402         .read_optrom            = qla2x00_read_optrom_data,
1403         .write_optrom           = qla2x00_write_optrom_data,
1404         .get_flash_version      = qla2x00_get_flash_version,
1405         .start_scsi             = qla2x00_start_scsi,
1406 };
1407
1408 static struct isp_operations qla24xx_isp_ops = {
1409         .pci_config             = qla24xx_pci_config,
1410         .reset_chip             = qla24xx_reset_chip,
1411         .chip_diag              = qla24xx_chip_diag,
1412         .config_rings           = qla24xx_config_rings,
1413         .reset_adapter          = qla24xx_reset_adapter,
1414         .nvram_config           = qla24xx_nvram_config,
1415         .update_fw_options      = qla24xx_update_fw_options,
1416         .load_risc              = qla24xx_load_risc,
1417         .pci_info_str           = qla24xx_pci_info_str,
1418         .fw_version_str         = qla24xx_fw_version_str,
1419         .intr_handler           = qla24xx_intr_handler,
1420         .enable_intrs           = qla24xx_enable_intrs,
1421         .disable_intrs          = qla24xx_disable_intrs,
1422         .abort_command          = qla24xx_abort_command,
1423         .target_reset           = qla24xx_abort_target,
1424         .lun_reset              = qla24xx_lun_reset,
1425         .fabric_login           = qla24xx_login_fabric,
1426         .fabric_logout          = qla24xx_fabric_logout,
1427         .calc_req_entries       = NULL,
1428         .build_iocbs            = NULL,
1429         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1430         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1431         .read_nvram             = qla24xx_read_nvram_data,
1432         .write_nvram            = qla24xx_write_nvram_data,
1433         .fw_dump                = qla24xx_fw_dump,
1434         .beacon_on              = qla24xx_beacon_on,
1435         .beacon_off             = qla24xx_beacon_off,
1436         .beacon_blink           = qla24xx_beacon_blink,
1437         .read_optrom            = qla24xx_read_optrom_data,
1438         .write_optrom           = qla24xx_write_optrom_data,
1439         .get_flash_version      = qla24xx_get_flash_version,
1440         .start_scsi             = qla24xx_start_scsi,
1441 };
1442
1443 static struct isp_operations qla25xx_isp_ops = {
1444         .pci_config             = qla25xx_pci_config,
1445         .reset_chip             = qla24xx_reset_chip,
1446         .chip_diag              = qla24xx_chip_diag,
1447         .config_rings           = qla24xx_config_rings,
1448         .reset_adapter          = qla24xx_reset_adapter,
1449         .nvram_config           = qla24xx_nvram_config,
1450         .update_fw_options      = qla24xx_update_fw_options,
1451         .load_risc              = qla24xx_load_risc,
1452         .pci_info_str           = qla24xx_pci_info_str,
1453         .fw_version_str         = qla24xx_fw_version_str,
1454         .intr_handler           = qla24xx_intr_handler,
1455         .enable_intrs           = qla24xx_enable_intrs,
1456         .disable_intrs          = qla24xx_disable_intrs,
1457         .abort_command          = qla24xx_abort_command,
1458         .target_reset           = qla24xx_abort_target,
1459         .lun_reset              = qla24xx_lun_reset,
1460         .fabric_login           = qla24xx_login_fabric,
1461         .fabric_logout          = qla24xx_fabric_logout,
1462         .calc_req_entries       = NULL,
1463         .build_iocbs            = NULL,
1464         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1465         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1466         .read_nvram             = qla25xx_read_nvram_data,
1467         .write_nvram            = qla25xx_write_nvram_data,
1468         .fw_dump                = qla25xx_fw_dump,
1469         .beacon_on              = qla24xx_beacon_on,
1470         .beacon_off             = qla24xx_beacon_off,
1471         .beacon_blink           = qla24xx_beacon_blink,
1472         .read_optrom            = qla25xx_read_optrom_data,
1473         .write_optrom           = qla24xx_write_optrom_data,
1474         .get_flash_version      = qla24xx_get_flash_version,
1475         .start_scsi             = qla24xx_start_scsi,
1476 };
1477
1478 static struct isp_operations qla81xx_isp_ops = {
1479         .pci_config             = qla25xx_pci_config,
1480         .reset_chip             = qla24xx_reset_chip,
1481         .chip_diag              = qla24xx_chip_diag,
1482         .config_rings           = qla24xx_config_rings,
1483         .reset_adapter          = qla24xx_reset_adapter,
1484         .nvram_config           = qla81xx_nvram_config,
1485         .update_fw_options      = qla81xx_update_fw_options,
1486         .load_risc              = qla81xx_load_risc,
1487         .pci_info_str           = qla24xx_pci_info_str,
1488         .fw_version_str         = qla24xx_fw_version_str,
1489         .intr_handler           = qla24xx_intr_handler,
1490         .enable_intrs           = qla24xx_enable_intrs,
1491         .disable_intrs          = qla24xx_disable_intrs,
1492         .abort_command          = qla24xx_abort_command,
1493         .target_reset           = qla24xx_abort_target,
1494         .lun_reset              = qla24xx_lun_reset,
1495         .fabric_login           = qla24xx_login_fabric,
1496         .fabric_logout          = qla24xx_fabric_logout,
1497         .calc_req_entries       = NULL,
1498         .build_iocbs            = NULL,
1499         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1500         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1501         .read_nvram             = NULL,
1502         .write_nvram            = NULL,
1503         .fw_dump                = qla81xx_fw_dump,
1504         .beacon_on              = qla24xx_beacon_on,
1505         .beacon_off             = qla24xx_beacon_off,
1506         .beacon_blink           = qla24xx_beacon_blink,
1507         .read_optrom            = qla25xx_read_optrom_data,
1508         .write_optrom           = qla24xx_write_optrom_data,
1509         .get_flash_version      = qla24xx_get_flash_version,
1510         .start_scsi             = qla24xx_start_scsi,
1511 };
1512
1513 static inline void
1514 qla2x00_set_isp_flags(struct qla_hw_data *ha)
1515 {
1516         ha->device_type = DT_EXTENDED_IDS;
1517         switch (ha->pdev->device) {
1518         case PCI_DEVICE_ID_QLOGIC_ISP2100:
1519                 ha->device_type |= DT_ISP2100;
1520                 ha->device_type &= ~DT_EXTENDED_IDS;
1521                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1522                 break;
1523         case PCI_DEVICE_ID_QLOGIC_ISP2200:
1524                 ha->device_type |= DT_ISP2200;
1525                 ha->device_type &= ~DT_EXTENDED_IDS;
1526                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1527                 break;
1528         case PCI_DEVICE_ID_QLOGIC_ISP2300:
1529                 ha->device_type |= DT_ISP2300;
1530                 ha->device_type |= DT_ZIO_SUPPORTED;
1531                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1532                 break;
1533         case PCI_DEVICE_ID_QLOGIC_ISP2312:
1534                 ha->device_type |= DT_ISP2312;
1535                 ha->device_type |= DT_ZIO_SUPPORTED;
1536                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1537                 break;
1538         case PCI_DEVICE_ID_QLOGIC_ISP2322:
1539                 ha->device_type |= DT_ISP2322;
1540                 ha->device_type |= DT_ZIO_SUPPORTED;
1541                 if (ha->pdev->subsystem_vendor == 0x1028 &&
1542                     ha->pdev->subsystem_device == 0x0170)
1543                         ha->device_type |= DT_OEM_001;
1544                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1545                 break;
1546         case PCI_DEVICE_ID_QLOGIC_ISP6312:
1547                 ha->device_type |= DT_ISP6312;
1548                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1549                 break;
1550         case PCI_DEVICE_ID_QLOGIC_ISP6322:
1551                 ha->device_type |= DT_ISP6322;
1552                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1553                 break;
1554         case PCI_DEVICE_ID_QLOGIC_ISP2422:
1555                 ha->device_type |= DT_ISP2422;
1556                 ha->device_type |= DT_ZIO_SUPPORTED;
1557                 ha->device_type |= DT_FWI2;
1558                 ha->device_type |= DT_IIDMA;
1559                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1560                 break;
1561         case PCI_DEVICE_ID_QLOGIC_ISP2432:
1562                 ha->device_type |= DT_ISP2432;
1563                 ha->device_type |= DT_ZIO_SUPPORTED;
1564                 ha->device_type |= DT_FWI2;
1565                 ha->device_type |= DT_IIDMA;
1566                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1567                 break;
1568         case PCI_DEVICE_ID_QLOGIC_ISP8432:
1569                 ha->device_type |= DT_ISP8432;
1570                 ha->device_type |= DT_ZIO_SUPPORTED;
1571                 ha->device_type |= DT_FWI2;
1572                 ha->device_type |= DT_IIDMA;
1573                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1574                 break;
1575         case PCI_DEVICE_ID_QLOGIC_ISP5422:
1576                 ha->device_type |= DT_ISP5422;
1577                 ha->device_type |= DT_FWI2;
1578                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1579                 break;
1580         case PCI_DEVICE_ID_QLOGIC_ISP5432:
1581                 ha->device_type |= DT_ISP5432;
1582                 ha->device_type |= DT_FWI2;
1583                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1584                 break;
1585         case PCI_DEVICE_ID_QLOGIC_ISP2532:
1586                 ha->device_type |= DT_ISP2532;
1587                 ha->device_type |= DT_ZIO_SUPPORTED;
1588                 ha->device_type |= DT_FWI2;
1589                 ha->device_type |= DT_IIDMA;
1590                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1591                 break;
1592         case PCI_DEVICE_ID_QLOGIC_ISP8001:
1593                 ha->device_type |= DT_ISP8001;
1594                 ha->device_type |= DT_ZIO_SUPPORTED;
1595                 ha->device_type |= DT_FWI2;
1596                 ha->device_type |= DT_IIDMA;
1597                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1598                 break;
1599         }
1600
1601         /* Get adapter physical port no from interrupt pin register. */
1602         pci_read_config_byte(ha->pdev, PCI_INTERRUPT_PIN, &ha->port_no);
1603         if (ha->port_no & 1)
1604                 ha->flags.port0 = 1;
1605         else
1606                 ha->flags.port0 = 0;
1607 }
1608
1609 static int
1610 qla2x00_iospace_config(struct qla_hw_data *ha)
1611 {
1612         resource_size_t pio;
1613         uint16_t msix;
1614         int cpus;
1615
1616         if (pci_request_selected_regions(ha->pdev, ha->bars,
1617             QLA2XXX_DRIVER_NAME)) {
1618                 qla_printk(KERN_WARNING, ha,
1619                     "Failed to reserve PIO/MMIO regions (%s)\n",
1620                     pci_name(ha->pdev));
1621
1622                 goto iospace_error_exit;
1623         }
1624         if (!(ha->bars & 1))
1625                 goto skip_pio;
1626
1627         /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1628         pio = pci_resource_start(ha->pdev, 0);
1629         if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
1630                 if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1631                         qla_printk(KERN_WARNING, ha,
1632                             "Invalid PCI I/O region size (%s)...\n",
1633                                 pci_name(ha->pdev));
1634                         pio = 0;
1635                 }
1636         } else {
1637                 qla_printk(KERN_WARNING, ha,
1638                     "region #0 not a PIO resource (%s)...\n",
1639                     pci_name(ha->pdev));
1640                 pio = 0;
1641         }
1642         ha->pio_address = pio;
1643
1644 skip_pio:
1645         /* Use MMIO operations for all accesses. */
1646         if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
1647                 qla_printk(KERN_ERR, ha,
1648                     "region #1 not an MMIO resource (%s), aborting\n",
1649                     pci_name(ha->pdev));
1650                 goto iospace_error_exit;
1651         }
1652         if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
1653                 qla_printk(KERN_ERR, ha,
1654                     "Invalid PCI mem region size (%s), aborting\n",
1655                         pci_name(ha->pdev));
1656                 goto iospace_error_exit;
1657         }
1658
1659         ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
1660         if (!ha->iobase) {
1661                 qla_printk(KERN_ERR, ha,
1662                     "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1663
1664                 goto iospace_error_exit;
1665         }
1666
1667         /* Determine queue resources */
1668         ha->max_req_queues = ha->max_rsp_queues = 1;
1669         if ((ql2xmaxqueues <= 1 || ql2xmultique_tag < 1) &&
1670                 (!IS_QLA25XX(ha) && !IS_QLA81XX(ha)))
1671                 goto mqiobase_exit;
1672         ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 3),
1673                         pci_resource_len(ha->pdev, 3));
1674         if (ha->mqiobase) {
1675                 /* Read MSIX vector size of the board */
1676                 pci_read_config_word(ha->pdev, QLA_PCI_MSIX_CONTROL, &msix);
1677                 ha->msix_count = msix;
1678                 /* Max queues are bounded by available msix vectors */
1679                 /* queue 0 uses two msix vectors */
1680                 if (ql2xmultique_tag) {
1681                         cpus = num_online_cpus();
1682                         ha->max_rsp_queues = (ha->msix_count - 1 > cpus) ?
1683                                 (cpus + 1) : (ha->msix_count - 1);
1684                         ha->max_req_queues = 2;
1685                 } else if (ql2xmaxqueues > 1) {
1686                         ha->max_req_queues = ql2xmaxqueues > QLA_MQ_SIZE ?
1687                                                 QLA_MQ_SIZE : ql2xmaxqueues;
1688                         DEBUG2(qla_printk(KERN_INFO, ha, "QoS mode set, max no"
1689                         " of request queues:%d\n", ha->max_req_queues));
1690                 }
1691                 qla_printk(KERN_INFO, ha,
1692                         "MSI-X vector count: %d\n", msix);
1693         } else
1694                 qla_printk(KERN_INFO, ha, "BAR 3 not enabled\n");
1695
1696 mqiobase_exit:
1697         ha->msix_count = ha->max_rsp_queues + 1;
1698         return (0);
1699
1700 iospace_error_exit:
1701         return (-ENOMEM);
1702 }
1703
1704 static void
1705 qla2xxx_scan_start(struct Scsi_Host *shost)
1706 {
1707         scsi_qla_host_t *vha = shost_priv(shost);
1708
1709         if (vha->hw->flags.running_gold_fw)
1710                 return;
1711
1712         set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1713         set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1714         set_bit(RSCN_UPDATE, &vha->dpc_flags);
1715         set_bit(NPIV_CONFIG_NEEDED, &vha->dpc_flags);
1716 }
1717
1718 static int
1719 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1720 {
1721         scsi_qla_host_t *vha = shost_priv(shost);
1722
1723         if (!vha->host)
1724                 return 1;
1725         if (time > vha->hw->loop_reset_delay * HZ)
1726                 return 1;
1727
1728         return atomic_read(&vha->loop_state) == LOOP_READY;
1729 }
1730
1731 /*
1732  * PCI driver interface
1733  */
1734 static int __devinit
1735 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1736 {
1737         int     ret = -ENODEV;
1738         struct Scsi_Host *host;
1739         scsi_qla_host_t *base_vha = NULL;
1740         struct qla_hw_data *ha;
1741         char pci_info[30];
1742         char fw_str[30];
1743         struct scsi_host_template *sht;
1744         int bars, max_id, mem_only = 0;
1745         uint16_t req_length = 0, rsp_length = 0;
1746         struct req_que *req = NULL;
1747         struct rsp_que *rsp = NULL;
1748
1749         bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
1750         sht = &qla2xxx_driver_template;
1751         if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1752             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1753             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8432 ||
1754             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1755             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
1756             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532 ||
1757             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8001) {
1758                 bars = pci_select_bars(pdev, IORESOURCE_MEM);
1759                 mem_only = 1;
1760         }
1761
1762         if (mem_only) {
1763                 if (pci_enable_device_mem(pdev))
1764                         goto probe_out;
1765         } else {
1766                 if (pci_enable_device(pdev))
1767                         goto probe_out;
1768         }
1769
1770         /* This may fail but that's ok */
1771         pci_enable_pcie_error_reporting(pdev);
1772
1773         ha = kzalloc(sizeof(struct qla_hw_data), GFP_KERNEL);
1774         if (!ha) {
1775                 DEBUG(printk("Unable to allocate memory for ha\n"));
1776                 goto probe_out;
1777         }
1778         ha->pdev = pdev;
1779
1780         /* Clear our data area */
1781         ha->bars = bars;
1782         ha->mem_only = mem_only;
1783         spin_lock_init(&ha->hardware_lock);
1784
1785         /* Set ISP-type information. */
1786         qla2x00_set_isp_flags(ha);
1787         /* Configure PCI I/O space */
1788         ret = qla2x00_iospace_config(ha);
1789         if (ret)
1790                 goto probe_hw_failed;
1791
1792         qla_printk(KERN_INFO, ha,
1793             "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1794             ha->iobase);
1795
1796         ha->prev_topology = 0;
1797         ha->init_cb_size = sizeof(init_cb_t);
1798         ha->link_data_rate = PORT_SPEED_UNKNOWN;
1799         ha->optrom_size = OPTROM_SIZE_2300;
1800
1801         /* Assign ISP specific operations. */
1802         max_id = MAX_TARGETS_2200;
1803         if (IS_QLA2100(ha)) {
1804                 max_id = MAX_TARGETS_2100;
1805                 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1806                 req_length = REQUEST_ENTRY_CNT_2100;
1807                 rsp_length = RESPONSE_ENTRY_CNT_2100;
1808                 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
1809                 ha->gid_list_info_size = 4;
1810                 ha->flash_conf_off = ~0;
1811                 ha->flash_data_off = ~0;
1812                 ha->nvram_conf_off = ~0;
1813                 ha->nvram_data_off = ~0;
1814                 ha->isp_ops = &qla2100_isp_ops;
1815         } else if (IS_QLA2200(ha)) {
1816                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1817                 req_length = REQUEST_ENTRY_CNT_2200;
1818                 rsp_length = RESPONSE_ENTRY_CNT_2100;
1819                 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
1820                 ha->gid_list_info_size = 4;
1821                 ha->flash_conf_off = ~0;
1822                 ha->flash_data_off = ~0;
1823                 ha->nvram_conf_off = ~0;
1824                 ha->nvram_data_off = ~0;
1825                 ha->isp_ops = &qla2100_isp_ops;
1826         } else if (IS_QLA23XX(ha)) {
1827                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1828                 req_length = REQUEST_ENTRY_CNT_2200;
1829                 rsp_length = RESPONSE_ENTRY_CNT_2300;
1830                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
1831                 ha->gid_list_info_size = 6;
1832                 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1833                         ha->optrom_size = OPTROM_SIZE_2322;
1834                 ha->flash_conf_off = ~0;
1835                 ha->flash_data_off = ~0;
1836                 ha->nvram_conf_off = ~0;
1837                 ha->nvram_data_off = ~0;
1838                 ha->isp_ops = &qla2300_isp_ops;
1839         } else if (IS_QLA24XX_TYPE(ha)) {
1840                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1841                 req_length = REQUEST_ENTRY_CNT_24XX;
1842                 rsp_length = RESPONSE_ENTRY_CNT_2300;
1843                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
1844                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1845                 ha->gid_list_info_size = 8;
1846                 ha->optrom_size = OPTROM_SIZE_24XX;
1847                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA24XX;
1848                 ha->isp_ops = &qla24xx_isp_ops;
1849                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
1850                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
1851                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
1852                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
1853         } else if (IS_QLA25XX(ha)) {
1854                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1855                 req_length = REQUEST_ENTRY_CNT_24XX;
1856                 rsp_length = RESPONSE_ENTRY_CNT_2300;
1857                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
1858                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1859                 ha->gid_list_info_size = 8;
1860                 ha->optrom_size = OPTROM_SIZE_25XX;
1861                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
1862                 ha->isp_ops = &qla25xx_isp_ops;
1863                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
1864                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
1865                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
1866                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
1867         } else if (IS_QLA81XX(ha)) {
1868                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1869                 req_length = REQUEST_ENTRY_CNT_24XX;
1870                 rsp_length = RESPONSE_ENTRY_CNT_2300;
1871                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
1872                 ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
1873                 ha->gid_list_info_size = 8;
1874                 ha->optrom_size = OPTROM_SIZE_81XX;
1875                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
1876                 ha->isp_ops = &qla81xx_isp_ops;
1877                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
1878                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
1879                 ha->nvram_conf_off = ~0;
1880                 ha->nvram_data_off = ~0;
1881         }
1882
1883         mutex_init(&ha->vport_lock);
1884         init_completion(&ha->mbx_cmd_comp);
1885         complete(&ha->mbx_cmd_comp);
1886         init_completion(&ha->mbx_intr_comp);
1887
1888         set_bit(0, (unsigned long *) ha->vp_idx_map);
1889
1890         qla2x00_config_dma_addressing(ha);
1891         ret = qla2x00_mem_alloc(ha, req_length, rsp_length, &req, &rsp);
1892         if (!ret) {
1893                 qla_printk(KERN_WARNING, ha,
1894                     "[ERROR] Failed to allocate memory for adapter\n");
1895
1896                 goto probe_hw_failed;
1897         }
1898
1899         req->max_q_depth = MAX_Q_DEPTH;
1900         if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
1901                 req->max_q_depth = ql2xmaxqdepth;
1902
1903
1904         base_vha = qla2x00_create_host(sht, ha);
1905         if (!base_vha) {
1906                 qla_printk(KERN_WARNING, ha,
1907                     "[ERROR] Failed to allocate memory for scsi_host\n");
1908
1909                 ret = -ENOMEM;
1910                 qla2x00_mem_free(ha);
1911                 qla2x00_free_req_que(ha, req);
1912                 qla2x00_free_rsp_que(ha, rsp);
1913                 goto probe_hw_failed;
1914         }
1915
1916         pci_set_drvdata(pdev, base_vha);
1917
1918         host = base_vha->host;
1919         base_vha->req = req;
1920         host->can_queue = req->length + 128;
1921         if (IS_QLA2XXX_MIDTYPE(ha))
1922                 base_vha->mgmt_svr_loop_id = 10 + base_vha->vp_idx;
1923         else
1924                 base_vha->mgmt_svr_loop_id = MANAGEMENT_SERVER +
1925                                                 base_vha->vp_idx;
1926         if (IS_QLA2100(ha))
1927                 host->sg_tablesize = 32;
1928         host->max_id = max_id;
1929         host->this_id = 255;
1930         host->cmd_per_lun = 3;
1931         host->unique_id = host->host_no;
1932         host->max_cmd_len = MAX_CMDSZ;
1933         host->max_channel = MAX_BUSES - 1;
1934         host->max_lun = MAX_LUNS;
1935         host->transportt = qla2xxx_transport_template;
1936
1937         /* Set up the irqs */
1938         ret = qla2x00_request_irqs(ha, rsp);
1939         if (ret)
1940                 goto probe_init_failed;
1941         /* Alloc arrays of request and response ring ptrs */
1942 que_init:
1943         if (!qla2x00_alloc_queues(ha)) {
1944                 qla_printk(KERN_WARNING, ha,
1945                 "[ERROR] Failed to allocate memory for queue"
1946                 " pointers\n");
1947                 goto probe_init_failed;
1948         }
1949         ha->rsp_q_map[0] = rsp;
1950         ha->req_q_map[0] = req;
1951         rsp->req = req;
1952         req->rsp = rsp;
1953         set_bit(0, ha->req_qid_map);
1954         set_bit(0, ha->rsp_qid_map);
1955         /* FWI2-capable only. */
1956         req->req_q_in = &ha->iobase->isp24.req_q_in;
1957         req->req_q_out = &ha->iobase->isp24.req_q_out;
1958         rsp->rsp_q_in = &ha->iobase->isp24.rsp_q_in;
1959         rsp->rsp_q_out = &ha->iobase->isp24.rsp_q_out;
1960         if (ha->mqenable) {
1961                 req->req_q_in = &ha->mqiobase->isp25mq.req_q_in;
1962                 req->req_q_out = &ha->mqiobase->isp25mq.req_q_out;
1963                 rsp->rsp_q_in = &ha->mqiobase->isp25mq.rsp_q_in;
1964                 rsp->rsp_q_out =  &ha->mqiobase->isp25mq.rsp_q_out;
1965         }
1966
1967         if (qla2x00_initialize_adapter(base_vha)) {
1968                 qla_printk(KERN_WARNING, ha,
1969                     "Failed to initialize adapter\n");
1970
1971                 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1972                     "Adapter flags %x.\n",
1973                     base_vha->host_no, base_vha->device_flags));
1974
1975                 ret = -ENODEV;
1976                 goto probe_failed;
1977         }
1978
1979         if (ha->mqenable) {
1980                 if (qla25xx_setup_mode(base_vha)) {
1981                         qla_printk(KERN_WARNING, ha,
1982                                 "Can't create queues, falling back to single"
1983                                 " queue mode\n");
1984                         goto que_init;
1985                 }
1986         }
1987
1988         if (ha->flags.running_gold_fw)
1989                 goto skip_dpc;
1990
1991         /*
1992          * Startup the kernel thread for this host adapter
1993          */
1994         ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
1995                         "%s_dpc", base_vha->host_str);
1996         if (IS_ERR(ha->dpc_thread)) {
1997                 qla_printk(KERN_WARNING, ha,
1998                     "Unable to start DPC thread!\n");
1999                 ret = PTR_ERR(ha->dpc_thread);
2000                 goto probe_failed;
2001         }
2002
2003 skip_dpc:
2004         list_add_tail(&base_vha->list, &ha->vp_list);
2005         base_vha->host->irq = ha->pdev->irq;
2006
2007         /* Initialized the timer */
2008         qla2x00_start_timer(base_vha, qla2x00_timer, WATCH_INTERVAL);
2009
2010         DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
2011             base_vha->host_no, ha));
2012
2013         base_vha->flags.init_done = 1;
2014         base_vha->flags.online = 1;
2015
2016         ret = scsi_add_host(host, &pdev->dev);
2017         if (ret)
2018                 goto probe_failed;
2019
2020         ha->isp_ops->enable_intrs(ha);
2021
2022         scsi_scan_host(host);
2023
2024         qla2x00_alloc_sysfs_attr(base_vha);
2025
2026         qla2x00_init_host_attr(base_vha);
2027
2028         qla2x00_dfs_setup(base_vha);
2029
2030         qla_printk(KERN_INFO, ha, "\n"
2031             " QLogic Fibre Channel HBA Driver: %s\n"
2032             "  QLogic %s - %s\n"
2033             "  ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
2034             qla2x00_version_str, ha->model_number,
2035             ha->model_desc ? ha->model_desc : "", pdev->device,
2036             ha->isp_ops->pci_info_str(base_vha, pci_info), pci_name(pdev),
2037             ha->flags.enable_64bit_addressing ? '+' : '-', base_vha->host_no,
2038             ha->isp_ops->fw_version_str(base_vha, fw_str));
2039
2040         return 0;
2041
2042 probe_init_failed:
2043         qla2x00_free_req_que(ha, req);
2044         qla2x00_free_rsp_que(ha, rsp);
2045         ha->max_req_queues = ha->max_rsp_queues = 0;
2046
2047 probe_failed:
2048         if (base_vha->timer_active)
2049                 qla2x00_stop_timer(base_vha);
2050         base_vha->flags.online = 0;
2051         if (ha->dpc_thread) {
2052                 struct task_struct *t = ha->dpc_thread;
2053
2054                 ha->dpc_thread = NULL;
2055                 kthread_stop(t);
2056         }
2057
2058         qla2x00_free_device(base_vha);
2059
2060         scsi_host_put(base_vha->host);
2061
2062 probe_hw_failed:
2063         if (ha->iobase)
2064                 iounmap(ha->iobase);
2065
2066         pci_release_selected_regions(ha->pdev, ha->bars);
2067         kfree(ha);
2068         ha = NULL;
2069
2070 probe_out:
2071         pci_disable_device(pdev);
2072         return ret;
2073 }
2074
2075 static void
2076 qla2x00_remove_one(struct pci_dev *pdev)
2077 {
2078         scsi_qla_host_t *base_vha, *vha, *temp;
2079         struct qla_hw_data  *ha;
2080
2081         base_vha = pci_get_drvdata(pdev);
2082         ha = base_vha->hw;
2083
2084         list_for_each_entry_safe(vha, temp, &ha->vp_list, list) {
2085                 if (vha && vha->fc_vport)
2086                         fc_vport_terminate(vha->fc_vport);
2087         }
2088
2089         set_bit(UNLOADING, &base_vha->dpc_flags);
2090
2091         qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
2092
2093         qla2x00_dfs_remove(base_vha);
2094
2095         qla84xx_put_chip(base_vha);
2096
2097         /* Disable timer */
2098         if (base_vha->timer_active)
2099                 qla2x00_stop_timer(base_vha);
2100
2101         base_vha->flags.online = 0;
2102
2103         /* Flush the work queue and remove it */
2104         if (ha->wq) {
2105                 flush_workqueue(ha->wq);
2106                 destroy_workqueue(ha->wq);
2107                 ha->wq = NULL;
2108         }
2109
2110         /* Kill the kernel thread for this host */
2111         if (ha->dpc_thread) {
2112                 struct task_struct *t = ha->dpc_thread;
2113
2114                 /*
2115                  * qla2xxx_wake_dpc checks for ->dpc_thread
2116                  * so we need to zero it out.
2117                  */
2118                 ha->dpc_thread = NULL;
2119                 kthread_stop(t);
2120         }
2121
2122         qla2x00_free_sysfs_attr(base_vha);
2123
2124         fc_remove_host(base_vha->host);
2125
2126         scsi_remove_host(base_vha->host);
2127
2128         qla2x00_free_device(base_vha);
2129
2130         scsi_host_put(base_vha->host);
2131
2132         if (ha->iobase)
2133                 iounmap(ha->iobase);
2134
2135         if (ha->mqiobase)
2136                 iounmap(ha->mqiobase);
2137
2138         pci_release_selected_regions(ha->pdev, ha->bars);
2139         kfree(ha);
2140         ha = NULL;
2141
2142         pci_disable_device(pdev);
2143         pci_set_drvdata(pdev, NULL);
2144 }
2145
2146 static void
2147 qla2x00_free_device(scsi_qla_host_t *vha)
2148 {
2149         struct qla_hw_data *ha = vha->hw;
2150
2151         qla25xx_delete_queues(vha);
2152
2153         if (ha->flags.fce_enabled)
2154                 qla2x00_disable_fce_trace(vha, NULL, NULL);
2155
2156         if (ha->eft)
2157                 qla2x00_disable_eft_trace(vha);
2158
2159         /* Stop currently executing firmware. */
2160         qla2x00_try_to_stop_firmware(vha);
2161
2162         /* turn-off interrupts on the card */
2163         if (ha->interrupts_on)
2164                 ha->isp_ops->disable_intrs(ha);
2165
2166         qla2x00_free_irqs(vha);
2167
2168         qla2x00_mem_free(ha);
2169
2170         qla2x00_free_queues(ha);
2171 }
2172
2173 static inline void
2174 qla2x00_schedule_rport_del(struct scsi_qla_host *vha, fc_port_t *fcport,
2175     int defer)
2176 {
2177         struct fc_rport *rport;
2178
2179         if (!fcport->rport)
2180                 return;
2181
2182         rport = fcport->rport;
2183         if (defer) {
2184                 spin_lock_irq(vha->host->host_lock);
2185                 fcport->drport = rport;
2186                 spin_unlock_irq(vha->host->host_lock);
2187                 set_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags);
2188                 qla2xxx_wake_dpc(vha);
2189         } else
2190                 fc_remote_port_delete(rport);
2191 }
2192
2193 /*
2194  * qla2x00_mark_device_lost Updates fcport state when device goes offline.
2195  *
2196  * Input: ha = adapter block pointer.  fcport = port structure pointer.
2197  *
2198  * Return: None.
2199  *
2200  * Context:
2201  */
2202 void qla2x00_mark_device_lost(scsi_qla_host_t *vha, fc_port_t *fcport,
2203     int do_login, int defer)
2204 {
2205         if (atomic_read(&fcport->state) == FCS_ONLINE &&
2206             vha->vp_idx == fcport->vp_idx) {
2207                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2208                 qla2x00_schedule_rport_del(vha, fcport, defer);
2209         }
2210         /*
2211          * We may need to retry the login, so don't change the state of the
2212          * port but do the retries.
2213          */
2214         if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
2215                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2216
2217         if (!do_login)
2218                 return;
2219
2220         if (fcport->login_retry == 0) {
2221                 fcport->login_retry = vha->hw->login_retry_count;
2222                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2223
2224                 DEBUG(printk("scsi(%ld): Port login retry: "
2225                     "%02x%02x%02x%02x%02x%02x%02x%02x, "
2226                     "id = 0x%04x retry cnt=%d\n",
2227                     vha->host_no,
2228                     fcport->port_name[0],
2229                     fcport->port_name[1],
2230                     fcport->port_name[2],
2231                     fcport->port_name[3],
2232                     fcport->port_name[4],
2233                     fcport->port_name[5],
2234                     fcport->port_name[6],
2235                     fcport->port_name[7],
2236                     fcport->loop_id,
2237                     fcport->login_retry));
2238         }
2239 }
2240
2241 /*
2242  * qla2x00_mark_all_devices_lost
2243  *      Updates fcport state when device goes offline.
2244  *
2245  * Input:
2246  *      ha = adapter block pointer.
2247  *      fcport = port structure pointer.
2248  *
2249  * Return:
2250  *      None.
2251  *
2252  * Context:
2253  */
2254 void
2255 qla2x00_mark_all_devices_lost(scsi_qla_host_t *vha, int defer)
2256 {
2257         fc_port_t *fcport;
2258
2259         list_for_each_entry(fcport, &vha->vp_fcports, list) {
2260                 if (vha->vp_idx != fcport->vp_idx)
2261                         continue;
2262                 /*
2263                  * No point in marking the device as lost, if the device is
2264                  * already DEAD.
2265                  */
2266                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
2267                         continue;
2268                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
2269                         atomic_set(&fcport->state, FCS_DEVICE_LOST);
2270                         qla2x00_schedule_rport_del(vha, fcport, defer);
2271                 } else
2272                         atomic_set(&fcport->state, FCS_DEVICE_LOST);
2273         }
2274 }
2275
2276 /*
2277 * qla2x00_mem_alloc
2278 *      Allocates adapter memory.
2279 *
2280 * Returns:
2281 *      0  = success.
2282 *      !0  = failure.
2283 */
2284 static int
2285 qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
2286         struct req_que **req, struct rsp_que **rsp)
2287 {
2288         char    name[16];
2289
2290         ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
2291                 &ha->init_cb_dma, GFP_KERNEL);
2292         if (!ha->init_cb)
2293                 goto fail;
2294
2295         ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
2296                 &ha->gid_list_dma, GFP_KERNEL);
2297         if (!ha->gid_list)
2298                 goto fail_free_init_cb;
2299
2300         ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
2301         if (!ha->srb_mempool)
2302                 goto fail_free_gid_list;
2303
2304         /* Get memory for cached NVRAM */
2305         ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
2306         if (!ha->nvram)
2307                 goto fail_free_srb_mempool;
2308
2309         snprintf(name, sizeof(name), "%s_%d", QLA2XXX_DRIVER_NAME,
2310                 ha->pdev->device);
2311         ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2312                 DMA_POOL_SIZE, 8, 0);
2313         if (!ha->s_dma_pool)
2314                 goto fail_free_nvram;
2315
2316         /* Allocate memory for SNS commands */
2317         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2318         /* Get consistent memory allocated for SNS commands */
2319                 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
2320                 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
2321                 if (!ha->sns_cmd)
2322                         goto fail_dma_pool;
2323         } else {
2324         /* Get consistent memory allocated for MS IOCB */
2325                 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2326                         &ha->ms_iocb_dma);
2327                 if (!ha->ms_iocb)
2328                         goto fail_dma_pool;
2329         /* Get consistent memory allocated for CT SNS commands */
2330                 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2331                         sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
2332                 if (!ha->ct_sns)
2333                         goto fail_free_ms_iocb;
2334         }
2335
2336         /* Allocate memory for request ring */
2337         *req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
2338         if (!*req) {
2339                 DEBUG(printk("Unable to allocate memory for req\n"));
2340                 goto fail_req;
2341         }
2342         (*req)->length = req_len;
2343         (*req)->ring = dma_alloc_coherent(&ha->pdev->dev,
2344                 ((*req)->length + 1) * sizeof(request_t),
2345                 &(*req)->dma, GFP_KERNEL);
2346         if (!(*req)->ring) {
2347                 DEBUG(printk("Unable to allocate memory for req_ring\n"));
2348                 goto fail_req_ring;
2349         }
2350         /* Allocate memory for response ring */
2351         *rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
2352         if (!*rsp) {
2353                 qla_printk(KERN_WARNING, ha,
2354                         "Unable to allocate memory for rsp\n");
2355                 goto fail_rsp;
2356         }
2357         (*rsp)->hw = ha;
2358         (*rsp)->length = rsp_len;
2359         (*rsp)->ring = dma_alloc_coherent(&ha->pdev->dev,
2360                 ((*rsp)->length + 1) * sizeof(response_t),
2361                 &(*rsp)->dma, GFP_KERNEL);
2362         if (!(*rsp)->ring) {
2363                 qla_printk(KERN_WARNING, ha,
2364                         "Unable to allocate memory for rsp_ring\n");
2365                 goto fail_rsp_ring;
2366         }
2367         (*req)->rsp = *rsp;
2368         (*rsp)->req = *req;
2369         /* Allocate memory for NVRAM data for vports */
2370         if (ha->nvram_npiv_size) {
2371                 ha->npiv_info = kzalloc(sizeof(struct qla_npiv_entry) *
2372                                         ha->nvram_npiv_size, GFP_KERNEL);
2373                 if (!ha->npiv_info) {
2374                         qla_printk(KERN_WARNING, ha,
2375                                 "Unable to allocate memory for npiv info\n");
2376                         goto fail_npiv_info;
2377                 }
2378         } else
2379                 ha->npiv_info = NULL;
2380
2381         /* Get consistent memory allocated for EX-INIT-CB. */
2382         if (IS_QLA81XX(ha)) {
2383                 ha->ex_init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2384                     &ha->ex_init_cb_dma);
2385                 if (!ha->ex_init_cb)
2386                         goto fail_ex_init_cb;
2387         }
2388
2389         INIT_LIST_HEAD(&ha->vp_list);
2390         return 1;
2391
2392 fail_ex_init_cb:
2393         kfree(ha->npiv_info);
2394 fail_npiv_info:
2395         dma_free_coherent(&ha->pdev->dev, ((*rsp)->length + 1) *
2396                 sizeof(response_t), (*rsp)->ring, (*rsp)->dma);
2397         (*rsp)->ring = NULL;
2398         (*rsp)->dma = 0;
2399 fail_rsp_ring:
2400         kfree(*rsp);
2401 fail_rsp:
2402         dma_free_coherent(&ha->pdev->dev, ((*req)->length + 1) *
2403                 sizeof(request_t), (*req)->ring, (*req)->dma);
2404         (*req)->ring = NULL;
2405         (*req)->dma = 0;
2406 fail_req_ring:
2407         kfree(*req);
2408 fail_req:
2409         dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2410                 ha->ct_sns, ha->ct_sns_dma);
2411         ha->ct_sns = NULL;
2412         ha->ct_sns_dma = 0;
2413 fail_free_ms_iocb:
2414         dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2415         ha->ms_iocb = NULL;
2416         ha->ms_iocb_dma = 0;
2417 fail_dma_pool:
2418         dma_pool_destroy(ha->s_dma_pool);
2419         ha->s_dma_pool = NULL;
2420 fail_free_nvram:
2421         kfree(ha->nvram);
2422         ha->nvram = NULL;
2423 fail_free_srb_mempool:
2424         mempool_destroy(ha->srb_mempool);
2425         ha->srb_mempool = NULL;
2426 fail_free_gid_list:
2427         dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2428         ha->gid_list_dma);
2429         ha->gid_list = NULL;
2430         ha->gid_list_dma = 0;
2431 fail_free_init_cb:
2432         dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
2433         ha->init_cb_dma);
2434         ha->init_cb = NULL;
2435         ha->init_cb_dma = 0;
2436 fail:
2437         DEBUG(printk("%s: Memory allocation failure\n", __func__));
2438         return -ENOMEM;
2439 }
2440
2441 /*
2442 * qla2x00_mem_free
2443 *      Frees all adapter allocated memory.
2444 *
2445 * Input:
2446 *      ha = adapter block pointer.
2447 */
2448 static void
2449 qla2x00_mem_free(struct qla_hw_data *ha)
2450 {
2451         if (ha->srb_mempool)
2452                 mempool_destroy(ha->srb_mempool);
2453
2454         if (ha->fce)
2455                 dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
2456                 ha->fce_dma);
2457
2458         if (ha->fw_dump) {
2459                 if (ha->eft)
2460                         dma_free_coherent(&ha->pdev->dev,
2461                         ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2462                 vfree(ha->fw_dump);
2463         }
2464
2465         if (ha->dcbx_tlv)
2466                 dma_free_coherent(&ha->pdev->dev, DCBX_TLV_DATA_SIZE,
2467                     ha->dcbx_tlv, ha->dcbx_tlv_dma);
2468
2469         if (ha->xgmac_data)
2470                 dma_free_coherent(&ha->pdev->dev, XGMAC_DATA_SIZE,
2471                     ha->xgmac_data, ha->xgmac_data_dma);
2472
2473         if (ha->sns_cmd)
2474                 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2475                 ha->sns_cmd, ha->sns_cmd_dma);
2476
2477         if (ha->ct_sns)
2478                 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2479                 ha->ct_sns, ha->ct_sns_dma);
2480
2481         if (ha->sfp_data)
2482                 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2483
2484         if (ha->edc_data)
2485                 dma_pool_free(ha->s_dma_pool, ha->edc_data, ha->edc_data_dma);
2486
2487         if (ha->ms_iocb)
2488                 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2489
2490         if (ha->ex_init_cb)
2491                 dma_pool_free(ha->s_dma_pool, ha->ex_init_cb, ha->ex_init_cb_dma);
2492
2493         if (ha->s_dma_pool)
2494                 dma_pool_destroy(ha->s_dma_pool);
2495
2496         if (ha->gid_list)
2497                 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2498                 ha->gid_list_dma);
2499
2500         if (ha->init_cb)
2501                 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
2502                 ha->init_cb, ha->init_cb_dma);
2503         vfree(ha->optrom_buffer);
2504         kfree(ha->nvram);
2505         kfree(ha->npiv_info);
2506
2507         ha->srb_mempool = NULL;
2508         ha->eft = NULL;
2509         ha->eft_dma = 0;
2510         ha->sns_cmd = NULL;
2511         ha->sns_cmd_dma = 0;
2512         ha->ct_sns = NULL;
2513         ha->ct_sns_dma = 0;
2514         ha->ms_iocb = NULL;
2515         ha->ms_iocb_dma = 0;
2516         ha->init_cb = NULL;
2517         ha->init_cb_dma = 0;
2518         ha->ex_init_cb = NULL;
2519         ha->ex_init_cb_dma = 0;
2520
2521         ha->s_dma_pool = NULL;
2522
2523         ha->gid_list = NULL;
2524         ha->gid_list_dma = 0;
2525
2526         ha->fw_dump = NULL;
2527         ha->fw_dumped = 0;
2528         ha->fw_dump_reading = 0;
2529 }
2530
2531 struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht,
2532                                                 struct qla_hw_data *ha)
2533 {
2534         struct Scsi_Host *host;
2535         struct scsi_qla_host *vha = NULL;
2536
2537         host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
2538         if (host == NULL) {
2539                 printk(KERN_WARNING
2540                 "qla2xxx: Couldn't allocate host from scsi layer!\n");
2541                 goto fail;
2542         }
2543
2544         /* Clear our data area */
2545         vha = shost_priv(host);
2546         memset(vha, 0, sizeof(scsi_qla_host_t));
2547
2548         vha->host = host;
2549         vha->host_no = host->host_no;
2550         vha->hw = ha;
2551
2552         INIT_LIST_HEAD(&vha->vp_fcports);
2553         INIT_LIST_HEAD(&vha->work_list);
2554         INIT_LIST_HEAD(&vha->list);
2555
2556         spin_lock_init(&vha->work_lock);
2557
2558         sprintf(vha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, vha->host_no);
2559         return vha;
2560
2561 fail:
2562         return vha;
2563 }
2564
2565 static struct qla_work_evt *
2566 qla2x00_alloc_work(struct scsi_qla_host *vha, enum qla_work_type type)
2567 {
2568         struct qla_work_evt *e;
2569
2570         e = kzalloc(sizeof(struct qla_work_evt), GFP_ATOMIC);
2571         if (!e)
2572                 return NULL;
2573
2574         INIT_LIST_HEAD(&e->list);
2575         e->type = type;
2576         e->flags = QLA_EVT_FLAG_FREE;
2577         return e;
2578 }
2579
2580 static int
2581 qla2x00_post_work(struct scsi_qla_host *vha, struct qla_work_evt *e)
2582 {
2583         unsigned long flags;
2584
2585         spin_lock_irqsave(&vha->work_lock, flags);
2586         list_add_tail(&e->list, &vha->work_list);
2587         spin_unlock_irqrestore(&vha->work_lock, flags);
2588         qla2xxx_wake_dpc(vha);
2589
2590         return QLA_SUCCESS;
2591 }
2592
2593 int
2594 qla2x00_post_aen_work(struct scsi_qla_host *vha, enum fc_host_event_code code,
2595     u32 data)
2596 {
2597         struct qla_work_evt *e;
2598
2599         e = qla2x00_alloc_work(vha, QLA_EVT_AEN);
2600         if (!e)
2601                 return QLA_FUNCTION_FAILED;
2602
2603         e->u.aen.code = code;
2604         e->u.aen.data = data;
2605         return qla2x00_post_work(vha, e);
2606 }
2607
2608 int
2609 qla2x00_post_idc_ack_work(struct scsi_qla_host *vha, uint16_t *mb)
2610 {
2611         struct qla_work_evt *e;
2612
2613         e = qla2x00_alloc_work(vha, QLA_EVT_IDC_ACK);
2614         if (!e)
2615                 return QLA_FUNCTION_FAILED;
2616
2617         memcpy(e->u.idc_ack.mb, mb, QLA_IDC_ACK_REGS * sizeof(uint16_t));
2618         return qla2x00_post_work(vha, e);
2619 }
2620
2621 static void
2622 qla2x00_do_work(struct scsi_qla_host *vha)
2623 {
2624         struct qla_work_evt *e, *tmp;
2625         unsigned long flags;
2626         LIST_HEAD(work);
2627
2628         spin_lock_irqsave(&vha->work_lock, flags);
2629         list_splice_init(&vha->work_list, &work);
2630         spin_unlock_irqrestore(&vha->work_lock, flags);
2631
2632         list_for_each_entry_safe(e, tmp, &work, list) {
2633                 list_del_init(&e->list);
2634
2635                 switch (e->type) {
2636                 case QLA_EVT_AEN:
2637                         fc_host_post_event(vha->host, fc_get_event_number(),
2638                             e->u.aen.code, e->u.aen.data);
2639                         break;
2640                 case QLA_EVT_IDC_ACK:
2641                         qla81xx_idc_ack(vha, e->u.idc_ack.mb);
2642                         break;
2643                 }
2644                 if (e->flags & QLA_EVT_FLAG_FREE)
2645                         kfree(e);
2646         }
2647 }
2648
2649 /* Relogins all the fcports of a vport
2650  * Context: dpc thread
2651  */
2652 void qla2x00_relogin(struct scsi_qla_host *vha)
2653 {
2654         fc_port_t       *fcport;
2655         int status;
2656         uint16_t        next_loopid = 0;
2657         struct qla_hw_data *ha = vha->hw;
2658
2659         list_for_each_entry(fcport, &vha->vp_fcports, list) {
2660         /*
2661          * If the port is not ONLINE then try to login
2662          * to it if we haven't run out of retries.
2663          */
2664                 if (atomic_read(&fcport->state) !=
2665                         FCS_ONLINE && fcport->login_retry) {
2666
2667                         if (fcport->flags & FCF_FABRIC_DEVICE) {
2668                                 if (fcport->flags & FCF_TAPE_PRESENT)
2669                                         ha->isp_ops->fabric_logout(vha,
2670                                                         fcport->loop_id,
2671                                                         fcport->d_id.b.domain,
2672                                                         fcport->d_id.b.area,
2673                                                         fcport->d_id.b.al_pa);
2674
2675                                 status = qla2x00_fabric_login(vha, fcport,
2676                                                         &next_loopid);
2677                         } else
2678                                 status = qla2x00_local_device_login(vha,
2679                                                                 fcport);
2680
2681                         fcport->login_retry--;
2682                         if (status == QLA_SUCCESS) {
2683                                 fcport->old_loop_id = fcport->loop_id;
2684
2685                                 DEBUG(printk("scsi(%ld): port login OK: logged "
2686                                 "in ID 0x%x\n", vha->host_no, fcport->loop_id));
2687
2688                                 qla2x00_update_fcport(vha, fcport);
2689
2690                         } else if (status == 1) {
2691                                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2692                                 /* retry the login again */
2693                                 DEBUG(printk("scsi(%ld): Retrying"
2694                                 " %d login again loop_id 0x%x\n",
2695                                 vha->host_no, fcport->login_retry,
2696                                                 fcport->loop_id));
2697                         } else {
2698                                 fcport->login_retry = 0;
2699                         }
2700
2701                         if (fcport->login_retry == 0 && status != QLA_SUCCESS)
2702                                 fcport->loop_id = FC_NO_LOOP_ID;
2703                 }
2704                 if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
2705                         break;
2706         }
2707 }
2708
2709 /**************************************************************************
2710 * qla2x00_do_dpc
2711 *   This kernel thread is a task that is schedule by the interrupt handler
2712 *   to perform the background processing for interrupts.
2713 *
2714 * Notes:
2715 * This task always run in the context of a kernel thread.  It
2716 * is kick-off by the driver's detect code and starts up
2717 * up one per adapter. It immediately goes to sleep and waits for
2718 * some fibre event.  When either the interrupt handler or
2719 * the timer routine detects a event it will one of the task
2720 * bits then wake us up.
2721 **************************************************************************/
2722 static int
2723 qla2x00_do_dpc(void *data)
2724 {
2725         int             rval;
2726         scsi_qla_host_t *base_vha;
2727         struct qla_hw_data *ha;
2728
2729         ha = (struct qla_hw_data *)data;
2730         base_vha = pci_get_drvdata(ha->pdev);
2731
2732         set_user_nice(current, -20);
2733
2734         while (!kthread_should_stop()) {
2735                 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2736
2737                 set_current_state(TASK_INTERRUPTIBLE);
2738                 schedule();
2739                 __set_current_state(TASK_RUNNING);
2740
2741                 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2742
2743                 /* Initialization not yet finished. Don't do anything yet. */
2744                 if (!base_vha->flags.init_done)
2745                         continue;
2746
2747                 DEBUG3(printk("scsi(%ld): DPC handler\n", base_vha->host_no));
2748
2749                 ha->dpc_active = 1;
2750
2751                 if (ha->flags.mbox_busy) {
2752                         ha->dpc_active = 0;
2753                         continue;
2754                 }
2755
2756                 qla2x00_do_work(base_vha);
2757
2758                 if (test_and_clear_bit(ISP_ABORT_NEEDED,
2759                                                 &base_vha->dpc_flags)) {
2760
2761                         DEBUG(printk("scsi(%ld): dpc: sched "
2762                             "qla2x00_abort_isp ha = %p\n",
2763                             base_vha->host_no, ha));
2764                         if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2765                             &base_vha->dpc_flags))) {
2766
2767                                 if (qla2x00_abort_isp(base_vha)) {
2768                                         /* failed. retry later */
2769                                         set_bit(ISP_ABORT_NEEDED,
2770                                             &base_vha->dpc_flags);
2771                                 }
2772                                 clear_bit(ABORT_ISP_ACTIVE,
2773                                                 &base_vha->dpc_flags);
2774                         }
2775
2776                         DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2777                             base_vha->host_no));
2778                 }
2779
2780                 if (test_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags)) {
2781                         qla2x00_update_fcports(base_vha);
2782                         clear_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
2783                 }
2784
2785                 if (test_and_clear_bit(RESET_MARKER_NEEDED,
2786                                                         &base_vha->dpc_flags) &&
2787                     (!(test_and_set_bit(RESET_ACTIVE, &base_vha->dpc_flags)))) {
2788
2789                         DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2790                             base_vha->host_no));
2791
2792                         qla2x00_rst_aen(base_vha);
2793                         clear_bit(RESET_ACTIVE, &base_vha->dpc_flags);
2794                 }
2795
2796                 /* Retry each device up to login retry count */
2797                 if ((test_and_clear_bit(RELOGIN_NEEDED,
2798                                                 &base_vha->dpc_flags)) &&
2799                     !test_bit(LOOP_RESYNC_NEEDED, &base_vha->dpc_flags) &&
2800                     atomic_read(&base_vha->loop_state) != LOOP_DOWN) {
2801
2802                         DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2803                                         base_vha->host_no));
2804                         qla2x00_relogin(base_vha);
2805
2806                         DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2807                             base_vha->host_no));
2808                 }
2809
2810                 if (test_and_clear_bit(LOOP_RESYNC_NEEDED,
2811                                                         &base_vha->dpc_flags)) {
2812
2813                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2814                                 base_vha->host_no));
2815
2816                         if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2817                             &base_vha->dpc_flags))) {
2818
2819                                 rval = qla2x00_loop_resync(base_vha);
2820
2821                                 clear_bit(LOOP_RESYNC_ACTIVE,
2822                                                 &base_vha->dpc_flags);
2823                         }
2824
2825                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2826                             base_vha->host_no));
2827                 }
2828
2829                 if (test_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags) &&
2830                     atomic_read(&base_vha->loop_state) == LOOP_READY) {
2831                         clear_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags);
2832                         qla2xxx_flash_npiv_conf(base_vha);
2833                 }
2834
2835                 if (!ha->interrupts_on)
2836                         ha->isp_ops->enable_intrs(ha);
2837
2838                 if (test_and_clear_bit(BEACON_BLINK_NEEDED,
2839                                         &base_vha->dpc_flags))
2840                         ha->isp_ops->beacon_blink(base_vha);
2841
2842                 qla2x00_do_dpc_all_vps(base_vha);
2843
2844                 ha->dpc_active = 0;
2845         } /* End of while(1) */
2846
2847         DEBUG(printk("scsi(%ld): DPC handler exiting\n", base_vha->host_no));
2848
2849         /*
2850          * Make sure that nobody tries to wake us up again.
2851          */
2852         ha->dpc_active = 0;
2853
2854         return 0;
2855 }
2856
2857 void
2858 qla2xxx_wake_dpc(struct scsi_qla_host *vha)
2859 {
2860         struct qla_hw_data *ha = vha->hw;
2861         struct task_struct *t = ha->dpc_thread;
2862
2863         if (!test_bit(UNLOADING, &vha->dpc_flags) && t)
2864                 wake_up_process(t);
2865 }
2866
2867 /*
2868 *  qla2x00_rst_aen
2869 *      Processes asynchronous reset.
2870 *
2871 * Input:
2872 *      ha  = adapter block pointer.
2873 */
2874 static void
2875 qla2x00_rst_aen(scsi_qla_host_t *vha)
2876 {
2877         if (vha->flags.online && !vha->flags.reset_active &&
2878             !atomic_read(&vha->loop_down_timer) &&
2879             !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) {
2880                 do {
2881                         clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
2882
2883                         /*
2884                          * Issue marker command only when we are going to start
2885                          * the I/O.
2886                          */
2887                         vha->marker_needed = 1;
2888                 } while (!atomic_read(&vha->loop_down_timer) &&
2889                     (test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags)));
2890         }
2891 }
2892
2893 static void
2894 qla2x00_sp_free_dma(srb_t *sp)
2895 {
2896         struct scsi_cmnd *cmd = sp->cmd;
2897
2898         if (sp->flags & SRB_DMA_VALID) {
2899                 scsi_dma_unmap(cmd);
2900                 sp->flags &= ~SRB_DMA_VALID;
2901         }
2902         CMD_SP(cmd) = NULL;
2903 }
2904
2905 void
2906 qla2x00_sp_compl(struct qla_hw_data *ha, srb_t *sp)
2907 {
2908         struct scsi_cmnd *cmd = sp->cmd;
2909
2910         qla2x00_sp_free_dma(sp);
2911
2912         mempool_free(sp, ha->srb_mempool);
2913
2914         cmd->scsi_done(cmd);
2915 }
2916
2917 /**************************************************************************
2918 *   qla2x00_timer
2919 *
2920 * Description:
2921 *   One second timer
2922 *
2923 * Context: Interrupt
2924 ***************************************************************************/
2925 void
2926 qla2x00_timer(scsi_qla_host_t *vha)
2927 {
2928         unsigned long   cpu_flags = 0;
2929         fc_port_t       *fcport;
2930         int             start_dpc = 0;
2931         int             index;
2932         srb_t           *sp;
2933         int             t;
2934         struct qla_hw_data *ha = vha->hw;
2935         struct req_que *req;
2936         /*
2937          * Ports - Port down timer.
2938          *
2939          * Whenever, a port is in the LOST state we start decrementing its port
2940          * down timer every second until it reaches zero. Once  it reaches zero
2941          * the port it marked DEAD.
2942          */
2943         t = 0;
2944         list_for_each_entry(fcport, &vha->vp_fcports, list) {
2945                 if (fcport->port_type != FCT_TARGET)
2946                         continue;
2947
2948                 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2949
2950                         if (atomic_read(&fcport->port_down_timer) == 0)
2951                                 continue;
2952
2953                         if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
2954                                 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
2955
2956                         DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
2957                             "%d remaining\n",
2958                             vha->host_no,
2959                             t, atomic_read(&fcport->port_down_timer)));
2960                 }
2961                 t++;
2962         } /* End of for fcport  */
2963
2964
2965         /* Loop down handler. */
2966         if (atomic_read(&vha->loop_down_timer) > 0 &&
2967             !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
2968                 && vha->flags.online) {
2969
2970                 if (atomic_read(&vha->loop_down_timer) ==
2971                     vha->loop_down_abort_time) {
2972
2973                         DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2974                             "queues before time expire\n",
2975                             vha->host_no));
2976
2977                         if (!IS_QLA2100(ha) && vha->link_down_timeout)
2978                                 atomic_set(&vha->loop_state, LOOP_DEAD);
2979
2980                         /* Schedule an ISP abort to return any tape commands. */
2981                         /* NPIV - scan physical port only */
2982                         if (!vha->vp_idx) {
2983                                 spin_lock_irqsave(&ha->hardware_lock,
2984                                     cpu_flags);
2985                                 req = ha->req_q_map[0];
2986                                 for (index = 1;
2987                                     index < MAX_OUTSTANDING_COMMANDS;
2988                                     index++) {
2989                                         fc_port_t *sfcp;
2990
2991                                         sp = req->outstanding_cmds[index];
2992                                         if (!sp)
2993                                                 continue;
2994                                         if (sp->ctx)
2995                                                 continue;
2996                                         sfcp = sp->fcport;
2997                                         if (!(sfcp->flags & FCF_TAPE_PRESENT))
2998                                                 continue;
2999
3000                                         set_bit(ISP_ABORT_NEEDED,
3001                                                         &vha->dpc_flags);
3002                                         break;
3003                                 }
3004                                 spin_unlock_irqrestore(&ha->hardware_lock,
3005                                                                 cpu_flags);
3006                         }
3007                         start_dpc++;
3008                 }
3009
3010                 /* if the loop has been down for 4 minutes, reinit adapter */
3011                 if (atomic_dec_and_test(&vha->loop_down_timer) != 0) {
3012                         if (!(vha->device_flags & DFLG_NO_CABLE) &&
3013                             !vha->vp_idx) {
3014                                 DEBUG(printk("scsi(%ld): Loop down - "
3015                                     "aborting ISP.\n",
3016                                     vha->host_no));
3017                                 qla_printk(KERN_WARNING, ha,
3018                                     "Loop down - aborting ISP.\n");
3019
3020                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3021                         }
3022                 }
3023                 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
3024                     vha->host_no,
3025                     atomic_read(&vha->loop_down_timer)));
3026         }
3027
3028         /* Check if beacon LED needs to be blinked */
3029         if (ha->beacon_blink_led == 1) {
3030                 set_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags);
3031                 start_dpc++;
3032         }
3033
3034         /* Process any deferred work. */
3035         if (!list_empty(&vha->work_list))
3036                 start_dpc++;
3037
3038         /* Schedule the DPC routine if needed */
3039         if ((test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
3040             test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) ||
3041             test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags) ||
3042             start_dpc ||
3043             test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) ||
3044             test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags) ||
3045             test_bit(VP_DPC_NEEDED, &vha->dpc_flags) ||
3046             test_bit(RELOGIN_NEEDED, &vha->dpc_flags)))
3047                 qla2xxx_wake_dpc(vha);
3048
3049         qla2x00_restart_timer(vha, WATCH_INTERVAL);
3050 }
3051
3052 /* Firmware interface routines. */
3053
3054 #define FW_BLOBS        7
3055 #define FW_ISP21XX      0
3056 #define FW_ISP22XX      1
3057 #define FW_ISP2300      2
3058 #define FW_ISP2322      3
3059 #define FW_ISP24XX      4
3060 #define FW_ISP25XX      5
3061 #define FW_ISP81XX      6
3062
3063 #define FW_FILE_ISP21XX "ql2100_fw.bin"
3064 #define FW_FILE_ISP22XX "ql2200_fw.bin"
3065 #define FW_FILE_ISP2300 "ql2300_fw.bin"
3066 #define FW_FILE_ISP2322 "ql2322_fw.bin"
3067 #define FW_FILE_ISP24XX "ql2400_fw.bin"
3068 #define FW_FILE_ISP25XX "ql2500_fw.bin"
3069 #define FW_FILE_ISP81XX "ql8100_fw.bin"
3070
3071 static DEFINE_MUTEX(qla_fw_lock);
3072
3073 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
3074         { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
3075         { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
3076         { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
3077         { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
3078         { .name = FW_FILE_ISP24XX, },
3079         { .name = FW_FILE_ISP25XX, },
3080         { .name = FW_FILE_ISP81XX, },
3081 };
3082
3083 struct fw_blob *
3084 qla2x00_request_firmware(scsi_qla_host_t *vha)
3085 {
3086         struct qla_hw_data *ha = vha->hw;
3087         struct fw_blob *blob;
3088
3089         blob = NULL;
3090         if (IS_QLA2100(ha)) {
3091                 blob = &qla_fw_blobs[FW_ISP21XX];
3092         } else if (IS_QLA2200(ha)) {
3093                 blob = &qla_fw_blobs[FW_ISP22XX];
3094         } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
3095                 blob = &qla_fw_blobs[FW_ISP2300];
3096         } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
3097                 blob = &qla_fw_blobs[FW_ISP2322];
3098         } else if (IS_QLA24XX_TYPE(ha)) {
3099                 blob = &qla_fw_blobs[FW_ISP24XX];
3100         } else if (IS_QLA25XX(ha)) {
3101                 blob = &qla_fw_blobs[FW_ISP25XX];
3102         } else if (IS_QLA81XX(ha)) {
3103                 blob = &qla_fw_blobs[FW_ISP81XX];
3104         }
3105
3106         mutex_lock(&qla_fw_lock);
3107         if (blob->fw)
3108                 goto out;
3109
3110         if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
3111                 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
3112                     "(%s).\n", vha->host_no, blob->name));
3113                 blob->fw = NULL;
3114                 blob = NULL;
3115                 goto out;
3116         }
3117
3118 out:
3119         mutex_unlock(&qla_fw_lock);
3120         return blob;
3121 }
3122
3123 static void
3124 qla2x00_release_firmware(void)
3125 {
3126         int idx;
3127
3128         mutex_lock(&qla_fw_lock);
3129         for (idx = 0; idx < FW_BLOBS; idx++)
3130                 if (qla_fw_blobs[idx].fw)
3131                         release_firmware(qla_fw_blobs[idx].fw);
3132         mutex_unlock(&qla_fw_lock);
3133 }
3134
3135 static pci_ers_result_t
3136 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
3137 {
3138         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3139
3140         switch (state) {
3141         case pci_channel_io_normal:
3142                 return PCI_ERS_RESULT_CAN_RECOVER;
3143         case pci_channel_io_frozen:
3144                 pci_disable_device(pdev);
3145                 return PCI_ERS_RESULT_NEED_RESET;
3146         case pci_channel_io_perm_failure:
3147                 qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
3148                 return PCI_ERS_RESULT_DISCONNECT;
3149         }
3150         return PCI_ERS_RESULT_NEED_RESET;
3151 }
3152
3153 static pci_ers_result_t
3154 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
3155 {
3156         int risc_paused = 0;
3157         uint32_t stat;
3158         unsigned long flags;
3159         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3160         struct qla_hw_data *ha = base_vha->hw;
3161         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3162         struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
3163
3164         spin_lock_irqsave(&ha->hardware_lock, flags);
3165         if (IS_QLA2100(ha) || IS_QLA2200(ha)){
3166                 stat = RD_REG_DWORD(&reg->hccr);
3167                 if (stat & HCCR_RISC_PAUSE)
3168                         risc_paused = 1;
3169         } else if (IS_QLA23XX(ha)) {
3170                 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
3171                 if (stat & HSR_RISC_PAUSED)
3172                         risc_paused = 1;
3173         } else if (IS_FWI2_CAPABLE(ha)) {
3174                 stat = RD_REG_DWORD(&reg24->host_status);
3175                 if (stat & HSRX_RISC_PAUSED)
3176                         risc_paused = 1;
3177         }
3178         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3179
3180         if (risc_paused) {
3181                 qla_printk(KERN_INFO, ha, "RISC paused -- mmio_enabled, "
3182                     "Dumping firmware!\n");
3183                 ha->isp_ops->fw_dump(base_vha, 0);
3184
3185                 return PCI_ERS_RESULT_NEED_RESET;
3186         } else
3187                 return PCI_ERS_RESULT_RECOVERED;
3188 }
3189
3190 static pci_ers_result_t
3191 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
3192 {
3193         pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
3194         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3195         struct qla_hw_data *ha = base_vha->hw;
3196         int rc;
3197
3198         if (ha->mem_only)
3199                 rc = pci_enable_device_mem(pdev);
3200         else
3201                 rc = pci_enable_device(pdev);
3202
3203         if (rc) {
3204                 qla_printk(KERN_WARNING, ha,
3205                     "Can't re-enable PCI device after reset.\n");
3206
3207                 return ret;
3208         }
3209         pci_set_master(pdev);
3210
3211         if (ha->isp_ops->pci_config(base_vha))
3212                 return ret;
3213
3214         set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
3215         if (qla2x00_abort_isp(base_vha) == QLA_SUCCESS)
3216                 ret =  PCI_ERS_RESULT_RECOVERED;
3217         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
3218
3219         return ret;
3220 }
3221
3222 static void
3223 qla2xxx_pci_resume(struct pci_dev *pdev)
3224 {
3225         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3226         struct qla_hw_data *ha = base_vha->hw;
3227         int ret;
3228
3229         ret = qla2x00_wait_for_hba_online(base_vha);
3230         if (ret != QLA_SUCCESS) {
3231                 qla_printk(KERN_ERR, ha,
3232                     "the device failed to resume I/O "
3233                     "from slot/link_reset");
3234         }
3235         pci_cleanup_aer_uncorrect_error_status(pdev);
3236 }
3237
3238 static struct pci_error_handlers qla2xxx_err_handler = {
3239         .error_detected = qla2xxx_pci_error_detected,
3240         .mmio_enabled = qla2xxx_pci_mmio_enabled,
3241         .slot_reset = qla2xxx_pci_slot_reset,
3242         .resume = qla2xxx_pci_resume,
3243 };
3244
3245 static struct pci_device_id qla2xxx_pci_tbl[] = {
3246         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
3247         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
3248         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
3249         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
3250         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
3251         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
3252         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
3253         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
3254         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
3255         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) },
3256         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
3257         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
3258         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
3259         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8001) },
3260         { 0 },
3261 };
3262 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
3263
3264 static struct pci_driver qla2xxx_pci_driver = {
3265         .name           = QLA2XXX_DRIVER_NAME,
3266         .driver         = {
3267                 .owner          = THIS_MODULE,
3268         },
3269         .id_table       = qla2xxx_pci_tbl,
3270         .probe          = qla2x00_probe_one,
3271         .remove         = qla2x00_remove_one,
3272         .err_handler    = &qla2xxx_err_handler,
3273 };
3274
3275 /**
3276  * qla2x00_module_init - Module initialization.
3277  **/
3278 static int __init
3279 qla2x00_module_init(void)
3280 {
3281         int ret = 0;
3282
3283         /* Allocate cache for SRBs. */
3284         srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
3285             SLAB_HWCACHE_ALIGN, NULL);
3286         if (srb_cachep == NULL) {
3287                 printk(KERN_ERR
3288                     "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
3289                 return -ENOMEM;
3290         }
3291
3292         /* Derive version string. */
3293         strcpy(qla2x00_version_str, QLA2XXX_VERSION);
3294         if (ql2xextended_error_logging)
3295                 strcat(qla2x00_version_str, "-debug");
3296
3297         qla2xxx_transport_template =
3298             fc_attach_transport(&qla2xxx_transport_functions);
3299         if (!qla2xxx_transport_template) {
3300                 kmem_cache_destroy(srb_cachep);
3301                 return -ENODEV;
3302         }
3303         qla2xxx_transport_vport_template =
3304             fc_attach_transport(&qla2xxx_transport_vport_functions);
3305         if (!qla2xxx_transport_vport_template) {
3306                 kmem_cache_destroy(srb_cachep);
3307                 fc_release_transport(qla2xxx_transport_template);
3308                 return -ENODEV;
3309         }
3310
3311         printk(KERN_INFO "QLogic Fibre Channel HBA Driver: %s\n",
3312             qla2x00_version_str);
3313         ret = pci_register_driver(&qla2xxx_pci_driver);
3314         if (ret) {
3315                 kmem_cache_destroy(srb_cachep);
3316                 fc_release_transport(qla2xxx_transport_template);
3317                 fc_release_transport(qla2xxx_transport_vport_template);
3318         }
3319         return ret;
3320 }
3321
3322 /**
3323  * qla2x00_module_exit - Module cleanup.
3324  **/
3325 static void __exit
3326 qla2x00_module_exit(void)
3327 {
3328         pci_unregister_driver(&qla2xxx_pci_driver);
3329         qla2x00_release_firmware();
3330         kmem_cache_destroy(srb_cachep);
3331         fc_release_transport(qla2xxx_transport_template);
3332         fc_release_transport(qla2xxx_transport_vport_template);
3333 }
3334
3335 module_init(qla2x00_module_init);
3336 module_exit(qla2x00_module_exit);
3337
3338 MODULE_AUTHOR("QLogic Corporation");
3339 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
3340 MODULE_LICENSE("GPL");
3341 MODULE_VERSION(QLA2XXX_VERSION);
3342 MODULE_FIRMWARE(FW_FILE_ISP21XX);
3343 MODULE_FIRMWARE(FW_FILE_ISP22XX);
3344 MODULE_FIRMWARE(FW_FILE_ISP2300);
3345 MODULE_FIRMWARE(FW_FILE_ISP2322);
3346 MODULE_FIRMWARE(FW_FILE_ISP24XX);
3347 MODULE_FIRMWARE(FW_FILE_ISP25XX);
3348 MODULE_FIRMWARE(FW_FILE_ISP81XX);