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