drivers/scsi/qla2xxx/qla_os.c

   1 /*
   2  * QLogic Fibre Channel HBA Driver
   3  * Copyright (c)  2003-2008 QLogic Corporation
   4  *
   5  * See LICENSE.qla2xxx for copyright and licensing details.
   6  */
   7 #include "qla_def.h"
   8
   9 #include <linux/moduleparam.h>
  10 #include <linux/vmalloc.h>
  11 #include <linux/delay.h>
  12 #include <linux/kthread.h>
  13 #include <linux/mutex.h>
  14
  15 #include <scsi/scsi_tcq.h>
  16 #include <scsi/scsicam.h>
  17 #include <scsi/scsi_transport.h>
  18 #include <scsi/scsi_transport_fc.h>
  19
  20 /*
  21  * Driver version
  22  */
  23 char qla2x00_version_str[40];
  24
  25 /*
  26  * SRB allocation cache
  27  */
  28 static struct kmem_cache *srb_cachep;
  29
  30 int ql2xlogintimeout = 20;
  31 module_param(ql2xlogintimeout, int, S_IRUGO|S_IRUSR);
  32 MODULE_PARM_DESC(ql2xlogintimeout,
  33                 "Login timeout value in seconds.");
  34
  35 int qlport_down_retry;
  36 module_param(qlport_down_retry, int, S_IRUGO|S_IRUSR);
  37 MODULE_PARM_DESC(qlport_down_retry,
  38                 "Maximum number of command retries to a port that returns "
  39                 "a PORT-DOWN status.");
  40
  41 int ql2xplogiabsentdevice;
  42 module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
  43 MODULE_PARM_DESC(ql2xplogiabsentdevice,
  44                 "Option to enable PLOGI to devices that are not present after "
  45                 "a Fabric scan.  This is needed for several broken switches. "
  46                 "Default is 0 - no PLOGI. 1 - perfom PLOGI.");
  47
  48 int ql2xloginretrycount = 0;
  49 module_param(ql2xloginretrycount, int, S_IRUGO|S_IRUSR);
  50 MODULE_PARM_DESC(ql2xloginretrycount,
  51                 "Specify an alternate value for the NVRAM login retry count.");
  52
  53 int ql2xallocfwdump = 1;
  54 module_param(ql2xallocfwdump, int, S_IRUGO|S_IRUSR);
  55 MODULE_PARM_DESC(ql2xallocfwdump,
  56                 "Option to enable allocation of memory for a firmware dump "
  57                 "during HBA initialization.  Memory allocation requirements "
  58                 "vary by ISP type.  Default is 1 - allocate memory.");
  59
  60 int ql2xextended_error_logging;
  61 module_param(ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
  62 MODULE_PARM_DESC(ql2xextended_error_logging,
  63                 "Option to enable extended error logging, "
  64                 "Default is 0 - no logging. 1 - log errors.");
  65
  66 static void qla2x00_free_device(scsi_qla_host_t *);
  67
  68 int ql2xfdmienable=1;
  69 module_param(ql2xfdmienable, int, S_IRUGO|S_IRUSR);
  70 MODULE_PARM_DESC(ql2xfdmienable,
  71                 "Enables FDMI registratons "
  72                 "Default is 0 - no FDMI. 1 - perfom FDMI.");
  73
  74 #define MAX_Q_DEPTH    32
  75 static int ql2xmaxqdepth = MAX_Q_DEPTH;
  76 module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
  77 MODULE_PARM_DESC(ql2xmaxqdepth,
  78                 "Maximum queue depth to report for target devices.");
  79
  80 int ql2xqfullrampup = 120;
  81 module_param(ql2xqfullrampup, int, S_IRUGO|S_IWUSR);
  82 MODULE_PARM_DESC(ql2xqfullrampup,
  83                 "Number of seconds to wait to begin to ramp-up the queue "
  84                 "depth for a device after a queue-full condition has been "
  85                 "detected.  Default is 120 seconds.");
  86
  87 int ql2xiidmaenable=1;
  88 module_param(ql2xiidmaenable, int, S_IRUGO|S_IRUSR);
  89 MODULE_PARM_DESC(ql2xiidmaenable,
  90                 "Enables iIDMA settings "
  91                 "Default is 1 - perform iIDMA. 0 - no iIDMA.");
  92
  93 int ql2xmaxqueues = 1;
  94 module_param(ql2xmaxqueues, int, S_IRUGO|S_IRUSR);
  95 MODULE_PARM_DESC(ql2xmaxqueues,
  96                 "Enables MQ settings "
  97                 "Default is 1 for single queue. Set it to number \
  98                         of queues in MQ mode.");
  99
 100 int ql2xmultique_tag;
 101 module_param(ql2xmultique_tag, int, S_IRUGO|S_IRUSR);
 102 MODULE_PARM_DESC(ql2xmultique_tag,
 103                 "Enables CPU affinity settings for the driver "
 104                 "Default is 0 for no affinity of request and response IO. "
 105                 "Set it to 1 to turn on the cpu affinity.");
 106 /*
 107  * SCSI host template entry points
 108  */
 109 static int qla2xxx_slave_configure(struct scsi_device * device);
 110 static int qla2xxx_slave_alloc(struct scsi_device *);
 111 static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
 112 static void qla2xxx_scan_start(struct Scsi_Host *);
 113 static void qla2xxx_slave_destroy(struct scsi_device *);
 114 static int qla2xxx_queuecommand(struct scsi_cmnd *cmd,
 115                 void (*fn)(struct scsi_cmnd *));
 116 static int qla2xxx_eh_abort(struct scsi_cmnd *);
 117 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
 118 static int qla2xxx_eh_target_reset(struct scsi_cmnd *);
 119 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
 120 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
 121
 122 static int qla2x00_change_queue_depth(struct scsi_device *, int);
 123 static int qla2x00_change_queue_type(struct scsi_device *, int);
 124
 125 struct scsi_host_template qla2xxx_driver_template = {
 126         .module                 = THIS_MODULE,
 127         .name                   = QLA2XXX_DRIVER_NAME,
 128         .queuecommand           = qla2xxx_queuecommand,
 129
 130         .eh_abort_handler       = qla2xxx_eh_abort,
 131         .eh_device_reset_handler = qla2xxx_eh_device_reset,
 132         .eh_target_reset_handler = qla2xxx_eh_target_reset,
 133         .eh_bus_reset_handler   = qla2xxx_eh_bus_reset,
 134         .eh_host_reset_handler  = qla2xxx_eh_host_reset,
 135
 136         .slave_configure        = qla2xxx_slave_configure,
 137
 138         .slave_alloc            = qla2xxx_slave_alloc,
 139         .slave_destroy          = qla2xxx_slave_destroy,
 140         .scan_finished          = qla2xxx_scan_finished,
 141         .scan_start             = qla2xxx_scan_start,
 142         .change_queue_depth     = qla2x00_change_queue_depth,
 143         .change_queue_type      = qla2x00_change_queue_type,
 144         .this_id                = -1,
 145         .cmd_per_lun            = 3,
 146         .use_clustering         = ENABLE_CLUSTERING,
 147         .sg_tablesize           = SG_ALL,
 148
 149         .max_sectors            = 0xFFFF,
 150         .shost_attrs            = qla2x00_host_attrs,
 151 };
 152
 153 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
 154 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
 155
 156 /* TODO Convert to inlines
 157  *
 158  * Timer routines
 159  */
 160
 161 __inline__ void
 162 qla2x00_start_timer(scsi_qla_host_t *vha, void *func, unsigned long interval)
 163 {
 164         init_timer(&vha->timer);
 165         vha->timer.expires = jiffies + interval * HZ;
 166         vha->timer.data = (unsigned long)vha;
 167         vha->timer.function = (void (*)(unsigned long))func;
 168         add_timer(&vha->timer);
 169         vha->timer_active = 1;
 170 }
 171
 172 static inline void
 173 qla2x00_restart_timer(scsi_qla_host_t *vha, unsigned long interval)
 174 {
 175         mod_timer(&vha->timer, jiffies + interval * HZ);
 176 }
 177
 178 static __inline__ void
 179 qla2x00_stop_timer(scsi_qla_host_t *vha)
 180 {
 181         del_timer_sync(&vha->timer);
 182         vha->timer_active = 0;
 183 }
 184
 185 static int qla2x00_do_dpc(void *data);
 186
 187 static void qla2x00_rst_aen(scsi_qla_host_t *);
 188
 189 static int qla2x00_mem_alloc(struct qla_hw_data *, uint16_t, uint16_t,
 190         struct req_que **, struct rsp_que **);
 191 static void qla2x00_mem_free(struct qla_hw_data *);
 192 static void qla2x00_sp_free_dma(srb_t *);
 193
 194 /* -------------------------------------------------------------------------- */
 195 static int qla2x00_alloc_queues(struct qla_hw_data *ha)
 196 {
 197         ha->req_q_map = kzalloc(sizeof(struct req_que *) * ha->max_req_queues,
 198                                 GFP_KERNEL);
 199         if (!ha->req_q_map) {
 200                 qla_printk(KERN_WARNING, ha,
 201                         "Unable to allocate memory for request queue ptrs\n");
 202                 goto fail_req_map;
 203         }
 204
 205         ha->rsp_q_map = kzalloc(sizeof(struct rsp_que *) * ha->max_rsp_queues,
 206                                 GFP_KERNEL);
 207         if (!ha->rsp_q_map) {
 208                 qla_printk(KERN_WARNING, ha,
 209                         "Unable to allocate memory for response queue ptrs\n");
 210                 goto fail_rsp_map;
 211         }
 212         set_bit(0, ha->rsp_qid_map);
 213         set_bit(0, ha->req_qid_map);
 214         return 1;
 215
 216 fail_rsp_map:
 217         kfree(ha->req_q_map);
 218         ha->req_q_map = NULL;
 219 fail_req_map:
 220         return -ENOMEM;
 221 }
 222
 223 static void qla2x00_free_req_que(struct qla_hw_data *ha, struct req_que *req)
 224 {
 225         if (req && req->ring)
 226                 dma_free_coherent(&ha->pdev->dev,
 227                 (req->length + 1) * sizeof(request_t),
 228                 req->ring, req->dma);
 229
 230         kfree(req);
 231         req = NULL;
 232 }
 233
 234 static void qla2x00_free_rsp_que(struct qla_hw_data *ha, struct rsp_que *rsp)
 235 {
 236         if (rsp && rsp->ring)
 237                 dma_free_coherent(&ha->pdev->dev,
 238                 (rsp->length + 1) * sizeof(response_t),
 239                 rsp->ring, rsp->dma);
 240
 241         kfree(rsp);
 242         rsp = NULL;
 243 }
 244
 245 static void qla2x00_free_queues(struct qla_hw_data *ha)
 246 {
 247         struct req_que *req;
 248         struct rsp_que *rsp;
 249         int cnt;
 250
 251         for (cnt = 0; cnt < ha->max_req_queues; cnt++) {
 252                 req = ha->req_q_map[cnt];
 253                 qla2x00_free_req_que(ha, req);
 254         }
 255         kfree(ha->req_q_map);
 256         ha->req_q_map = NULL;
 257
 258         for (cnt = 0; cnt < ha->max_rsp_queues; cnt++) {
 259                 rsp = ha->rsp_q_map[cnt];
 260                 qla2x00_free_rsp_que(ha, rsp);
 261         }
 262         kfree(ha->rsp_q_map);
 263         ha->rsp_q_map = NULL;
 264 }
 265
 266 static int qla25xx_setup_mode(struct scsi_qla_host *vha)
 267 {
 268         uint16_t options = 0;
 269         int ques, req, ret;
 270         struct qla_hw_data *ha = vha->hw;
 271
 272         if (ql2xmultique_tag) {
 273                 /* CPU affinity mode */
 274                 ha->wq = create_workqueue("qla2xxx_wq");
 275                 /* create a request queue for IO */
 276                 options |= BIT_7;
 277                 req = qla25xx_create_req_que(ha, options, 0, 0, -1,
 278                         QLA_DEFAULT_QUE_QOS);
 279                 if (!req) {
 280                         qla_printk(KERN_WARNING, ha,
 281                                 "Can't create request queue\n");
 282                         goto fail;
 283                 }
 284                 vha->req = ha->req_q_map[req];
 285                 options |= BIT_1;
 286                 for (ques = 1; ques < ha->max_rsp_queues; ques++) {
 287                         ret = qla25xx_create_rsp_que(ha, options, 0, 0, req);
 288                         if (!ret) {
 289                                 qla_printk(KERN_WARNING, ha,
 290                                         "Response Queue create failed\n");
 291                                 goto fail2;
 292                         }
 293                 }
 294                 DEBUG2(qla_printk(KERN_INFO, ha,
 295                         "CPU affinity mode enabled, no. of response"
 296                         " queues:%d, no. of request queues:%d\n",
 297                         ha->max_rsp_queues, ha->max_req_queues));
 298         }
 299         return 0;
 300 fail2:
 301         qla25xx_delete_queues(vha);
 302 fail:
 303         ha->mqenable = 0;
 304         return 1;
 305 }
 306
 307 static char *
 308 qla2x00_pci_info_str(struct scsi_qla_host *vha, char *str)
 309 {
 310         struct qla_hw_data *ha = vha->hw;
 311         static char *pci_bus_modes[] = {
 312                 "33", "66", "100", "133",
 313         };
 314         uint16_t pci_bus;
 315
 316         strcpy(str, "PCI");
 317         pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
 318         if (pci_bus) {
 319                 strcat(str, "-X (");
 320                 strcat(str, pci_bus_modes[pci_bus]);
 321         } else {
 322                 pci_bus = (ha->pci_attr & BIT_8) >> 8;
 323                 strcat(str, " (");
 324                 strcat(str, pci_bus_modes[pci_bus]);
 325         }
 326         strcat(str, " MHz)");
 327
 328         return (str);
 329 }
 330
 331 static char *
 332 qla24xx_pci_info_str(struct scsi_qla_host *vha, char *str)
 333 {
 334         static char *pci_bus_modes[] = { "33", "66", "100", "133", };
 335         struct qla_hw_data *ha = vha->hw;
 336         uint32_t pci_bus;
 337         int pcie_reg;
 338
 339         pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
 340         if (pcie_reg) {
 341                 char lwstr[6];
 342                 uint16_t pcie_lstat, lspeed, lwidth;
 343
 344                 pcie_reg += 0x12;
 345                 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
 346                 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
 347                 lwidth = (pcie_lstat &
 348                     (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
 349
 350                 strcpy(str, "PCIe (");
 351                 if (lspeed == 1)
 352                         strcat(str, "2.5GT/s ");
 353                 else if (lspeed == 2)
 354                         strcat(str, "5.0GT/s ");
 355                 else
 356                         strcat(str, "<unknown> ");
 357                 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
 358                 strcat(str, lwstr);
 359
 360                 return str;
 361         }
 362
 363         strcpy(str, "PCI");
 364         pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
 365         if (pci_bus == 0 || pci_bus == 8) {
 366                 strcat(str, " (");
 367                 strcat(str, pci_bus_modes[pci_bus >> 3]);
 368         } else {
 369                 strcat(str, "-X ");
 370                 if (pci_bus & BIT_2)
 371                         strcat(str, "Mode 2");
 372                 else
 373                         strcat(str, "Mode 1");
 374                 strcat(str, " (");
 375                 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
 376         }
 377         strcat(str, " MHz)");
 378
 379         return str;
 380 }
 381
 382 static char *
 383 qla2x00_fw_version_str(struct scsi_qla_host *vha, char *str)
 384 {
 385         char un_str[10];
 386         struct qla_hw_data *ha = vha->hw;
 387
 388         sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
 389             ha->fw_minor_version,
 390             ha->fw_subminor_version);
 391
 392         if (ha->fw_attributes & BIT_9) {
 393                 strcat(str, "FLX");
 394                 return (str);
 395         }
 396
 397         switch (ha->fw_attributes & 0xFF) {
 398         case 0x7:
 399                 strcat(str, "EF");
 400                 break;
 401         case 0x17:
 402                 strcat(str, "TP");
 403                 break;
 404         case 0x37:
 405                 strcat(str, "IP");
 406                 break;
 407         case 0x77:
 408                 strcat(str, "VI");
 409                 break;
 410         default:
 411                 sprintf(un_str, "(%x)", ha->fw_attributes);
 412                 strcat(str, un_str);
 413                 break;
 414         }
 415         if (ha->fw_attributes & 0x100)
 416                 strcat(str, "X");
 417
 418         return (str);
 419 }
 420
 421 static char *
 422 qla24xx_fw_version_str(struct scsi_qla_host *vha, char *str)
 423 {
 424         struct qla_hw_data *ha = vha->hw;
 425
 426         sprintf(str, "%d.%02d.%02d (%x)", ha->fw_major_version,
 427             ha->fw_minor_version, ha->fw_subminor_version, ha->fw_attributes);
 428         return str;
 429 }
 430
 431 static inline srb_t *
 432 qla2x00_get_new_sp(scsi_qla_host_t *vha, fc_port_t *fcport,
 433     struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 434 {
 435         srb_t *sp;
 436         struct qla_hw_data *ha = vha->hw;
 437
 438         sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
 439         if (!sp)
 440                 return sp;
 441
 442         sp->fcport = fcport;
 443         sp->cmd = cmd;
 444         sp->flags = 0;
 445         CMD_SP(cmd) = (void *)sp;
 446         cmd->scsi_done = done;
 447
 448         return sp;
 449 }
 450
 451 static int
 452 qla2xxx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 453 {
 454         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 455         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 456         struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
 457         struct qla_hw_data *ha = vha->hw;
 458         struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
 459         srb_t *sp;
 460         int rval;
 461
 462         if (unlikely(pci_channel_offline(ha->pdev))) {
 463                 if (ha->pdev->error_state == pci_channel_io_frozen)
 464                         cmd->result = DID_REQUEUE << 16;
 465                 else
 466                         cmd->result = DID_NO_CONNECT << 16;
 467                 goto qc24_fail_command;
 468         }
 469
 470         rval = fc_remote_port_chkready(rport);
 471         if (rval) {
 472                 cmd->result = rval;
 473                 goto qc24_fail_command;
 474         }
 475
 476         /* Close window on fcport/rport state-transitioning. */
 477         if (fcport->drport)
 478                 goto qc24_target_busy;
 479
 480         if (atomic_read(&fcport->state) != FCS_ONLINE) {
 481                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
 482                     atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
 483                         cmd->result = DID_NO_CONNECT << 16;
 484                         goto qc24_fail_command;
 485                 }
 486                 goto qc24_target_busy;
 487         }
 488
 489         spin_unlock_irq(vha->host->host_lock);
 490
 491         sp = qla2x00_get_new_sp(base_vha, fcport, cmd, done);
 492         if (!sp)
 493                 goto qc24_host_busy_lock;
 494
 495         rval = ha->isp_ops->start_scsi(sp);
 496         if (rval != QLA_SUCCESS)
 497                 goto qc24_host_busy_free_sp;
 498
 499         spin_lock_irq(vha->host->host_lock);
 500
 501         return 0;
 502
 503 qc24_host_busy_free_sp:
 504         qla2x00_sp_free_dma(sp);
 505         mempool_free(sp, ha->srb_mempool);
 506
 507 qc24_host_busy_lock:
 508         spin_lock_irq(vha->host->host_lock);
 509         return SCSI_MLQUEUE_HOST_BUSY;
 510
 511 qc24_target_busy:
 512         return SCSI_MLQUEUE_TARGET_BUSY;
 513
 514 qc24_fail_command:
 515         done(cmd);
 516
 517         return 0;
 518 }
 519
 520
 521 /*
 522  * qla2x00_eh_wait_on_command
 523  *    Waits for the command to be returned by the Firmware for some
 524  *    max time.
 525  *
 526  * Input:
 527  *    cmd = Scsi Command to wait on.
 528  *
 529  * Return:
 530  *    Not Found : 0
 531  *    Found : 1
 532  */
 533 static int
 534 qla2x00_eh_wait_on_command(struct scsi_cmnd *cmd)
 535 {
 536 #define ABORT_POLLING_PERIOD    1000
 537 #define ABORT_WAIT_ITER         ((10 * 1000) / (ABORT_POLLING_PERIOD))
 538         unsigned long wait_iter = ABORT_WAIT_ITER;
 539         int ret = QLA_SUCCESS;
 540
 541         while (CMD_SP(cmd)) {
 542                 msleep(ABORT_POLLING_PERIOD);
 543
 544                 if (--wait_iter)
 545                         break;
 546         }
 547         if (CMD_SP(cmd))
 548                 ret = QLA_FUNCTION_FAILED;
 549
 550         return ret;
 551 }
 552
 553 /*
 554  * qla2x00_wait_for_hba_online
 555  *    Wait till the HBA is online after going through
 556  *    <= MAX_RETRIES_OF_ISP_ABORT  or
 557  *    finally HBA is disabled ie marked offline
 558  *
 559  * Input:
 560  *     ha - pointer to host adapter structure
 561  *
 562  * Note:
 563  *    Does context switching-Release SPIN_LOCK
 564  *    (if any) before calling this routine.
 565  *
 566  * Return:
 567  *    Success (Adapter is online) : 0
 568  *    Failed  (Adapter is offline/disabled) : 1
 569  */
 570 int
 571 qla2x00_wait_for_hba_online(scsi_qla_host_t *vha)
 572 {
 573         int             return_status;
 574         unsigned long   wait_online;
 575         struct qla_hw_data *ha = vha->hw;
 576         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 577
 578         wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 579         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 580             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 581             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 582             ha->dpc_active) && time_before(jiffies, wait_online)) {
 583
 584                 msleep(1000);
 585         }
 586         if (base_vha->flags.online)
 587                 return_status = QLA_SUCCESS;
 588         else
 589                 return_status = QLA_FUNCTION_FAILED;
 590
 591         return (return_status);
 592 }
 593
 594 int
 595 qla2x00_wait_for_chip_reset(scsi_qla_host_t *vha)
 596 {
 597         int             return_status;
 598         unsigned long   wait_reset;
 599         struct qla_hw_data *ha = vha->hw;
 600         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 601
 602         wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 603         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 604             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 605             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 606             ha->dpc_active) && time_before(jiffies, wait_reset)) {
 607
 608                 msleep(1000);
 609
 610                 if (!test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags) &&
 611                     ha->flags.chip_reset_done)
 612                         break;
 613         }
 614         if (ha->flags.chip_reset_done)
 615                 return_status = QLA_SUCCESS;
 616         else
 617                 return_status = QLA_FUNCTION_FAILED;
 618
 619         return return_status;
 620 }
 621
 622 /*
 623  * qla2x00_wait_for_loop_ready
 624  *    Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
 625  *    to be in LOOP_READY state.
 626  * Input:
 627  *     ha - pointer to host adapter structure
 628  *
 629  * Note:
 630  *    Does context switching-Release SPIN_LOCK
 631  *    (if any) before calling this routine.
 632  *
 633  *
 634  * Return:
 635  *    Success (LOOP_READY) : 0
 636  *    Failed  (LOOP_NOT_READY) : 1
 637  */
 638 static inline int
 639 qla2x00_wait_for_loop_ready(scsi_qla_host_t *vha)
 640 {
 641         int      return_status = QLA_SUCCESS;
 642         unsigned long loop_timeout ;
 643         struct qla_hw_data *ha = vha->hw;
 644         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 645
 646         /* wait for 5 min at the max for loop to be ready */
 647         loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 648
 649         while ((!atomic_read(&base_vha->loop_down_timer) &&
 650             atomic_read(&base_vha->loop_state) == LOOP_DOWN) ||
 651             atomic_read(&base_vha->loop_state) != LOOP_READY) {
 652                 if (atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
 653                         return_status = QLA_FUNCTION_FAILED;
 654                         break;
 655                 }
 656                 msleep(1000);
 657                 if (time_after_eq(jiffies, loop_timeout)) {
 658                         return_status = QLA_FUNCTION_FAILED;
 659                         break;
 660                 }
 661         }
 662         return (return_status);
 663 }
 664
 665 void
 666 qla2x00_abort_fcport_cmds(fc_port_t *fcport)
 667 {
 668         int cnt;
 669         unsigned long flags;
 670         srb_t *sp;
 671         scsi_qla_host_t *vha = fcport->vha;
 672         struct qla_hw_data *ha = vha->hw;
 673         struct req_que *req;
 674
 675         spin_lock_irqsave(&ha->hardware_lock, flags);
 676         req = vha->req;
 677         for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
 678                 sp = req->outstanding_cmds[cnt];
 679                 if (!sp)
 680                         continue;
 681                 if (sp->fcport != fcport)
 682                         continue;
 683
 684                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 685                 if (ha->isp_ops->abort_command(sp)) {
 686                         DEBUG2(qla_printk(KERN_WARNING, ha,
 687                         "Abort failed --  %lx\n",
 688                         sp->cmd->serial_number));
 689                 } else {
 690                         if (qla2x00_eh_wait_on_command(sp->cmd) !=
 691                                 QLA_SUCCESS)
 692                                 DEBUG2(qla_printk(KERN_WARNING, ha,
 693                                 "Abort failed while waiting --  %lx\n",
 694                                 sp->cmd->serial_number));
 695                 }
 696                 spin_lock_irqsave(&ha->hardware_lock, flags);
 697         }
 698         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 699 }
 700
 701 static void
 702 qla2x00_block_error_handler(struct scsi_cmnd *cmnd)
 703 {
 704         struct Scsi_Host *shost = cmnd->device->host;
 705         struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
 706         unsigned long flags;
 707
 708         spin_lock_irqsave(shost->host_lock, flags);
 709         while (rport->port_state == FC_PORTSTATE_BLOCKED) {
 710                 spin_unlock_irqrestore(shost->host_lock, flags);
 711                 msleep(1000);
 712                 spin_lock_irqsave(shost->host_lock, flags);
 713         }
 714         spin_unlock_irqrestore(shost->host_lock, flags);
 715         return;
 716 }
 717
 718 /**************************************************************************
 719 * qla2xxx_eh_abort
 720 *
 721 * Description:
 722 *    The abort function will abort the specified command.
 723 *
 724 * Input:
 725 *    cmd = Linux SCSI command packet to be aborted.
 726 *
 727 * Returns:
 728 *    Either SUCCESS or FAILED.
 729 *
 730 * Note:
 731 *    Only return FAILED if command not returned by firmware.
 732 **************************************************************************/
 733 static int
 734 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
 735 {
 736         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 737         srb_t *sp;
 738         int ret, i;
 739         unsigned int id, lun;
 740         unsigned long serial;
 741         unsigned long flags;
 742         int wait = 0;
 743         struct qla_hw_data *ha = vha->hw;
 744         struct req_que *req = vha->req;
 745         srb_t *spt;
 746
 747         qla2x00_block_error_handler(cmd);
 748
 749         if (!CMD_SP(cmd))
 750                 return SUCCESS;
 751
 752         ret = SUCCESS;
 753
 754         id = cmd->device->id;
 755         lun = cmd->device->lun;
 756         serial = cmd->serial_number;
 757         spt = (srb_t *) CMD_SP(cmd);
 758         if (!spt)
 759                 return SUCCESS;
 760
 761         /* Check active list for command command. */
 762         spin_lock_irqsave(&ha->hardware_lock, flags);
 763         for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
 764                 sp = req->outstanding_cmds[i];
 765
 766                 if (sp == NULL)
 767                         continue;
 768
 769                 if (sp->cmd != cmd)
 770                         continue;
 771
 772                 DEBUG2(printk("%s(%ld): aborting sp %p from RISC."
 773                 " pid=%ld.\n", __func__, vha->host_no, sp, serial));
 774
 775                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 776                 if (ha->isp_ops->abort_command(sp)) {
 777                         DEBUG2(printk("%s(%ld): abort_command "
 778                         "mbx failed.\n", __func__, vha->host_no));
 779                         ret = FAILED;
 780                 } else {
 781                         DEBUG3(printk("%s(%ld): abort_command "
 782                         "mbx success.\n", __func__, vha->host_no));
 783                         wait = 1;
 784                 }
 785                 spin_lock_irqsave(&ha->hardware_lock, flags);
 786                 break;
 787         }
 788         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 789
 790         /* Wait for the command to be returned. */
 791         if (wait) {
 792                 if (qla2x00_eh_wait_on_command(cmd) != QLA_SUCCESS) {
 793                         qla_printk(KERN_ERR, ha,
 794                             "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
 795                             "%x.\n", vha->host_no, id, lun, serial, ret);
 796                         ret = FAILED;
 797                 }
 798         }
 799
 800         qla_printk(KERN_INFO, ha,
 801             "scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n",
 802             vha->host_no, id, lun, wait, serial, ret);
 803
 804         return ret;
 805 }
 806
 807 enum nexus_wait_type {
 808         WAIT_HOST = 0,
 809         WAIT_TARGET,
 810         WAIT_LUN,
 811 };
 812
 813 static int
 814 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *vha, unsigned int t,
 815         unsigned int l, srb_t *sp, enum nexus_wait_type type)
 816 {
 817         int cnt, match, status;
 818         unsigned long flags;
 819         struct qla_hw_data *ha = vha->hw;
 820         struct req_que *req;
 821
 822         status = QLA_SUCCESS;
 823         if (!sp)
 824                 return status;
 825
 826         spin_lock_irqsave(&ha->hardware_lock, flags);
 827         req = vha->req;
 828         for (cnt = 1; status == QLA_SUCCESS &&
 829                 cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
 830                 sp = req->outstanding_cmds[cnt];
 831                 if (!sp)
 832                         continue;
 833
 834                 if (vha->vp_idx != sp->fcport->vha->vp_idx)
 835                         continue;
 836                 match = 0;
 837                 switch (type) {
 838                 case WAIT_HOST:
 839                         match = 1;
 840                         break;
 841                 case WAIT_TARGET:
 842                         match = sp->cmd->device->id == t;
 843                         break;
 844                 case WAIT_LUN:
 845                         match = (sp->cmd->device->id == t &&
 846                                 sp->cmd->device->lun == l);
 847                         break;
 848                 }
 849                 if (!match)
 850                         continue;
 851
 852                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 853                 status = qla2x00_eh_wait_on_command(sp->cmd);
 854                 spin_lock_irqsave(&ha->hardware_lock, flags);
 855         }
 856         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 857
 858         return status;
 859 }
 860
 861 static char *reset_errors[] = {
 862         "HBA not online",
 863         "HBA not ready",
 864         "Task management failed",
 865         "Waiting for command completions",
 866 };
 867
 868 static int
 869 __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
 870     struct scsi_cmnd *cmd, int (*do_reset)(struct fc_port *, unsigned int, int))
 871 {
 872         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 873         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 874         int err;
 875
 876         qla2x00_block_error_handler(cmd);
 877
 878         if (!fcport)
 879                 return FAILED;
 880
 881         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET ISSUED.\n",
 882             vha->host_no, cmd->device->id, cmd->device->lun, name);
 883
 884         err = 0;
 885         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
 886                 goto eh_reset_failed;
 887         err = 1;
 888         if (qla2x00_wait_for_loop_ready(vha) != QLA_SUCCESS)
 889                 goto eh_reset_failed;
 890         err = 2;
 891         if (do_reset(fcport, cmd->device->lun, cmd->request->cpu + 1)
 892                 != QLA_SUCCESS)
 893                 goto eh_reset_failed;
 894         err = 3;
 895         if (qla2x00_eh_wait_for_pending_commands(vha, cmd->device->id,
 896             cmd->device->lun, (srb_t *) CMD_SP(cmd), type) != QLA_SUCCESS)
 897                 goto eh_reset_failed;
 898
 899         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET SUCCEEDED.\n",
 900             vha->host_no, cmd->device->id, cmd->device->lun, name);
 901
 902         return SUCCESS;
 903
 904  eh_reset_failed:
 905         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET FAILED: %s.\n"
 906             , vha->host_no, cmd->device->id, cmd->device->lun, name,
 907             reset_errors[err]);
 908         return FAILED;
 909 }
 910
 911 static int
 912 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
 913 {
 914         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 915         struct qla_hw_data *ha = vha->hw;
 916
 917         return __qla2xxx_eh_generic_reset("DEVICE", WAIT_LUN, cmd,
 918             ha->isp_ops->lun_reset);
 919 }
 920
 921 static int
 922 qla2xxx_eh_target_reset(struct scsi_cmnd *cmd)
 923 {
 924         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 925         struct qla_hw_data *ha = vha->hw;
 926
 927         return __qla2xxx_eh_generic_reset("TARGET", WAIT_TARGET, cmd,
 928             ha->isp_ops->target_reset);
 929 }
 930
 931 /**************************************************************************
 932 * qla2xxx_eh_bus_reset
 933 *
 934 * Description:
 935 *    The bus reset function will reset the bus and abort any executing
 936 *    commands.
 937 *
 938 * Input:
 939 *    cmd = Linux SCSI command packet of the command that cause the
 940 *          bus reset.
 941 *
 942 * Returns:
 943 *    SUCCESS/FAILURE (defined as macro in scsi.h).
 944 *
 945 **************************************************************************/
 946 static int
 947 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
 948 {
 949         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 950         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 951         int ret = FAILED;
 952         unsigned int id, lun;
 953         unsigned long serial;
 954         srb_t *sp = (srb_t *) CMD_SP(cmd);
 955
 956         qla2x00_block_error_handler(cmd);
 957
 958         id = cmd->device->id;
 959         lun = cmd->device->lun;
 960         serial = cmd->serial_number;
 961
 962         if (!fcport)
 963                 return ret;
 964
 965         qla_printk(KERN_INFO, vha->hw,
 966             "scsi(%ld:%d:%d): BUS RESET ISSUED.\n", vha->host_no, id, lun);
 967
 968         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
 969                 DEBUG2(printk("%s failed:board disabled\n",__func__));
 970                 goto eh_bus_reset_done;
 971         }
 972
 973         if (qla2x00_wait_for_loop_ready(vha) == QLA_SUCCESS) {
 974                 if (qla2x00_loop_reset(vha) == QLA_SUCCESS)
 975                         ret = SUCCESS;
 976         }
 977         if (ret == FAILED)
 978                 goto eh_bus_reset_done;
 979
 980         /* Flush outstanding commands. */
 981         if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, sp, WAIT_HOST) !=
 982             QLA_SUCCESS)
 983                 ret = FAILED;
 984
 985 eh_bus_reset_done:
 986         qla_printk(KERN_INFO, vha->hw, "%s: reset %s\n", __func__,
 987             (ret == FAILED) ? "failed" : "succeded");
 988
 989         return ret;
 990 }
 991
 992 /**************************************************************************
 993 * qla2xxx_eh_host_reset
 994 *
 995 * Description:
 996 *    The reset function will reset the Adapter.
 997 *
 998 * Input:
 999 *      cmd = Linux SCSI command packet of the command that cause the
1000 *            adapter reset.
1001 *
1002 * Returns:
1003 *      Either SUCCESS or FAILED.
1004 *
1005 * Note:
1006 **************************************************************************/
1007 static int
1008 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
1009 {
1010         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1011         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1012         struct qla_hw_data *ha = vha->hw;
1013         int ret = FAILED;
1014         unsigned int id, lun;
1015         unsigned long serial;
1016         srb_t *sp = (srb_t *) CMD_SP(cmd);
1017         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1018
1019         qla2x00_block_error_handler(cmd);
1020
1021         id = cmd->device->id;
1022         lun = cmd->device->lun;
1023         serial = cmd->serial_number;
1024
1025         if (!fcport)
1026                 return ret;
1027
1028         qla_printk(KERN_INFO, ha,
1029             "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", vha->host_no, id, lun);
1030
1031         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
1032                 goto eh_host_reset_lock;
1033
1034         /*
1035          * Fixme-may be dpc thread is active and processing
1036          * loop_resync,so wait a while for it to
1037          * be completed and then issue big hammer.Otherwise
1038          * it may cause I/O failure as big hammer marks the
1039          * devices as lost kicking of the port_down_timer
1040          * while dpc is stuck for the mailbox to complete.
1041          */
1042         qla2x00_wait_for_loop_ready(vha);
1043         if (vha != base_vha) {
1044                 if (qla2x00_vp_abort_isp(vha))
1045                         goto eh_host_reset_lock;
1046         } else {
1047                 if (ha->wq)
1048                         flush_workqueue(ha->wq);
1049
1050                 set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1051                 if (qla2x00_abort_isp(base_vha)) {
1052                         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1053                         /* failed. schedule dpc to try */
1054                         set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags);
1055
1056                         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
1057                                 goto eh_host_reset_lock;
1058                 }
1059                 clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1060         }
1061
1062         /* Waiting for command to be returned to OS.*/
1063         if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, sp, WAIT_HOST) ==
1064                 QLA_SUCCESS)
1065                 ret = SUCCESS;
1066
1067 eh_host_reset_lock:
1068         qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
1069             (ret == FAILED) ? "failed" : "succeded");
1070
1071         return ret;
1072 }
1073
1074 /*
1075 * qla2x00_loop_reset
1076 *      Issue loop reset.
1077 *
1078 * Input:
1079 *      ha = adapter block pointer.
1080 *
1081 * Returns:
1082 *      0 = success
1083 */
1084 int
1085 qla2x00_loop_reset(scsi_qla_host_t *vha)
1086 {
1087         int ret;
1088         struct fc_port *fcport;
1089         struct qla_hw_data *ha = vha->hw;
1090
1091         if (ha->flags.enable_lip_full_login && !vha->vp_idx &&
1092             !IS_QLA81XX(ha)) {
1093                 ret = qla2x00_full_login_lip(vha);
1094                 if (ret != QLA_SUCCESS) {
1095                         DEBUG2_3(printk("%s(%ld): failed: "
1096                             "full_login_lip=%d.\n", __func__, vha->host_no,
1097                             ret));
1098                 }
1099                 atomic_set(&vha->loop_state, LOOP_DOWN);
1100                 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1101                 qla2x00_mark_all_devices_lost(vha, 0);
1102                 qla2x00_wait_for_loop_ready(vha);
1103         }
1104
1105         if (ha->flags.enable_lip_reset && !vha->vp_idx) {
1106                 ret = qla2x00_lip_reset(vha);
1107                 if (ret != QLA_SUCCESS) {
1108                         DEBUG2_3(printk("%s(%ld): failed: "
1109                             "lip_reset=%d.\n", __func__, vha->host_no, ret));
1110                 } else
1111                         qla2x00_wait_for_loop_ready(vha);
1112         }
1113
1114         if (ha->flags.enable_target_reset) {
1115                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
1116                         if (fcport->port_type != FCT_TARGET)
1117                                 continue;
1118
1119                         ret = ha->isp_ops->target_reset(fcport, 0, 0);
1120                         if (ret != QLA_SUCCESS) {
1121                                 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1122                                     "target_reset=%d d_id=%x.\n", __func__,
1123                                     vha->host_no, ret, fcport->d_id.b24));
1124                         }
1125                 }
1126         }
1127         /* Issue marker command only when we are going to start the I/O */
1128         vha->marker_needed = 1;
1129
1130         return QLA_SUCCESS;
1131 }
1132
1133 void
1134 qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res)
1135 {
1136         int que, cnt;
1137         unsigned long flags;
1138         srb_t *sp;
1139         struct qla_hw_data *ha = vha->hw;
1140         struct req_que *req;
1141
1142         spin_lock_irqsave(&ha->hardware_lock, flags);
1143         for (que = 0; que < ha->max_req_queues; que++) {
1144                 req = ha->req_q_map[que];
1145                 if (!req)
1146                         continue;
1147                 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
1148                         sp = req->outstanding_cmds[cnt];
1149                         if (sp) {
1150                                 req->outstanding_cmds[cnt] = NULL;
1151                                 sp->cmd->result = res;
1152                                 qla2x00_sp_compl(ha, sp);
1153                         }
1154                 }
1155         }
1156         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1157 }
1158
1159 static int
1160 qla2xxx_slave_alloc(struct scsi_device *sdev)
1161 {
1162         struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1163
1164         if (!rport || fc_remote_port_chkready(rport))
1165                 return -ENXIO;
1166
1167         sdev->hostdata = *(fc_port_t **)rport->dd_data;
1168
1169         return 0;
1170 }
1171
1172 static int
1173 qla2xxx_slave_configure(struct scsi_device *sdev)
1174 {
1175         scsi_qla_host_t *vha = shost_priv(sdev->host);
1176         struct qla_hw_data *ha = vha->hw;
1177         struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1178         struct req_que *req = vha->req;
1179
1180         if (sdev->tagged_supported)
1181                 scsi_activate_tcq(sdev, req->max_q_depth);
1182         else
1183                 scsi_deactivate_tcq(sdev, req->max_q_depth);
1184
1185         rport->dev_loss_tmo = ha->port_down_retry_count;
1186
1187         return 0;
1188 }
1189
1190 static void
1191 qla2xxx_slave_destroy(struct scsi_device *sdev)
1192 {
1193         sdev->hostdata = NULL;
1194 }
1195
1196 static int
1197 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1198 {
1199         scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1200         return sdev->queue_depth;
1201 }
1202
1203 static int
1204 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1205 {
1206         if (sdev->tagged_supported) {
1207                 scsi_set_tag_type(sdev, tag_type);
1208                 if (tag_type)
1209                         scsi_activate_tcq(sdev, sdev->queue_depth);
1210                 else
1211                         scsi_deactivate_tcq(sdev, sdev->queue_depth);
1212         } else
1213                 tag_type = 0;
1214
1215         return tag_type;
1216 }
1217
1218 /**
1219  * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1220  * @ha: HA context
1221  *
1222  * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1223  * supported addressing method.
1224  */
1225 static void
1226 qla2x00_config_dma_addressing(struct qla_hw_data *ha)
1227 {
1228         /* Assume a 32bit DMA mask. */
1229         ha->flags.enable_64bit_addressing = 0;
1230
1231         if (!dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(64))) {
1232                 /* Any upper-dword bits set? */
1233                 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1234                     !pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
1235                         /* Ok, a 64bit DMA mask is applicable. */
1236                         ha->flags.enable_64bit_addressing = 1;
1237                         ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1238                         ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1239                         return;
1240                 }
1241         }
1242
1243         dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(32));
1244         pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(32));
1245 }
1246
1247 static void
1248 qla2x00_enable_intrs(struct qla_hw_data *ha)
1249 {
1250         unsigned long flags = 0;
1251         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1252
1253         spin_lock_irqsave(&ha->hardware_lock, flags);
1254         ha->interrupts_on = 1;
1255         /* enable risc and host interrupts */
1256         WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1257         RD_REG_WORD(&reg->ictrl);
1258         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1259
1260 }
1261
1262 static void
1263 qla2x00_disable_intrs(struct qla_hw_data *ha)
1264 {
1265         unsigned long flags = 0;
1266         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1267
1268         spin_lock_irqsave(&ha->hardware_lock, flags);
1269         ha->interrupts_on = 0;
1270         /* disable risc and host interrupts */
1271         WRT_REG_WORD(&reg->ictrl, 0);
1272         RD_REG_WORD(&reg->ictrl);
1273         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1274 }
1275
1276 static void
1277 qla24xx_enable_intrs(struct qla_hw_data *ha)
1278 {
1279         unsigned long flags = 0;
1280         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1281
1282         spin_lock_irqsave(&ha->hardware_lock, flags);
1283         ha->interrupts_on = 1;
1284         WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1285         RD_REG_DWORD(&reg->ictrl);
1286         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1287 }
1288
1289 static void
1290 qla24xx_disable_intrs(struct qla_hw_data *ha)
1291 {
1292         unsigned long flags = 0;
1293         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1294
1295         if (IS_NOPOLLING_TYPE(ha))
1296                 return;
1297         spin_lock_irqsave(&ha->hardware_lock, flags);
1298         ha->interrupts_on = 0;
1299         WRT_REG_DWORD(&reg->ictrl, 0);
1300         RD_REG_DWORD(&reg->ictrl);
1301         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1302 }
1303
1304 static struct isp_operations qla2100_isp_ops = {
1305         .pci_config             = qla2100_pci_config,
1306         .reset_chip             = qla2x00_reset_chip,
1307         .chip_diag              = qla2x00_chip_diag,
1308         .config_rings           = qla2x00_config_rings,
1309         .reset_adapter          = qla2x00_reset_adapter,
1310         .nvram_config           = qla2x00_nvram_config,
1311         .update_fw_options      = qla2x00_update_fw_options,
1312         .load_risc              = qla2x00_load_risc,
1313         .pci_info_str           = qla2x00_pci_info_str,
1314         .fw_version_str         = qla2x00_fw_version_str,
1315         .intr_handler           = qla2100_intr_handler,
1316         .enable_intrs           = qla2x00_enable_intrs,
1317         .disable_intrs          = qla2x00_disable_intrs,
1318         .abort_command          = qla2x00_abort_command,
1319         .target_reset           = qla2x00_abort_target,
1320         .lun_reset              = qla2x00_lun_reset,
1321         .fabric_login           = qla2x00_login_fabric,
1322         .fabric_logout          = qla2x00_fabric_logout,
1323         .calc_req_entries       = qla2x00_calc_iocbs_32,
1324         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1325         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1326         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1327         .read_nvram             = qla2x00_read_nvram_data,
1328         .write_nvram            = qla2x00_write_nvram_data,
1329         .fw_dump                = qla2100_fw_dump,
1330         .beacon_on              = NULL,
1331         .beacon_off             = NULL,
1332         .beacon_blink           = NULL,
1333         .read_optrom            = qla2x00_read_optrom_data,
1334         .write_optrom           = qla2x00_write_optrom_data,
1335         .get_flash_version      = qla2x00_get_flash_version,
1336         .start_scsi             = qla2x00_start_scsi,
1337 };
1338
1339 static struct isp_operations qla2300_isp_ops = {
1340         .pci_config             = qla2300_pci_config,
1341         .reset_chip             = qla2x00_reset_chip,
1342         .chip_diag              = qla2x00_chip_diag,
1343         .config_rings           = qla2x00_config_rings,
1344         .reset_adapter          = qla2x00_reset_adapter,
1345         .nvram_config           = qla2x00_nvram_config,
1346         .update_fw_options      = qla2x00_update_fw_options,
1347         .load_risc              = qla2x00_load_risc,
1348         .pci_info_str           = qla2x00_pci_info_str,
1349         .fw_version_str         = qla2x00_fw_version_str,
1350         .intr_handler           = qla2300_intr_handler,
1351         .enable_intrs           = qla2x00_enable_intrs,
1352         .disable_intrs          = qla2x00_disable_intrs,
1353         .abort_command          = qla2x00_abort_command,
1354         .target_reset           = qla2x00_abort_target,
1355         .lun_reset              = qla2x00_lun_reset,
1356         .fabric_login           = qla2x00_login_fabric,
1357         .fabric_logout          = qla2x00_fabric_logout,
1358         .calc_req_entries       = qla2x00_calc_iocbs_32,
1359         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1360         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1361         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1362         .read_nvram             = qla2x00_read_nvram_data,
1363         .write_nvram            = qla2x00_write_nvram_data,
1364         .fw_dump                = qla2300_fw_dump,
1365         .beacon_on              = qla2x00_beacon_on,
1366         .beacon_off             = qla2x00_beacon_off,
1367         .beacon_blink           = qla2x00_beacon_blink,
1368         .read_optrom            = qla2x00_read_optrom_data,
1369         .write_optrom           = qla2x00_write_optrom_data,
1370         .get_flash_version      = qla2x00_get_flash_version,
1371         .start_scsi             = qla2x00_start_scsi,
1372 };
1373
1374 static struct isp_operations qla24xx_isp_ops = {
1375         .pci_config             = qla24xx_pci_config,
1376         .reset_chip             = qla24xx_reset_chip,
1377         .chip_diag              = qla24xx_chip_diag,
1378         .config_rings           = qla24xx_config_rings,
1379         .reset_adapter          = qla24xx_reset_adapter,
1380         .nvram_config           = qla24xx_nvram_config,
1381         .update_fw_options      = qla24xx_update_fw_options,
1382         .load_risc              = qla24xx_load_risc,
1383         .pci_info_str           = qla24xx_pci_info_str,
1384         .fw_version_str         = qla24xx_fw_version_str,
1385         .intr_handler           = qla24xx_intr_handler,
1386         .enable_intrs           = qla24xx_enable_intrs,
1387         .disable_intrs          = qla24xx_disable_intrs,
1388         .abort_command          = qla24xx_abort_command,
1389         .target_reset           = qla24xx_abort_target,
1390         .lun_reset              = qla24xx_lun_reset,
1391         .fabric_login           = qla24xx_login_fabric,
1392         .fabric_logout          = qla24xx_fabric_logout,
1393         .calc_req_entries       = NULL,
1394         .build_iocbs            = NULL,
1395         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1396         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1397         .read_nvram             = qla24xx_read_nvram_data,
1398         .write_nvram            = qla24xx_write_nvram_data,
1399         .fw_dump                = qla24xx_fw_dump,
1400         .beacon_on              = qla24xx_beacon_on,
1401         .beacon_off             = qla24xx_beacon_off,
1402         .beacon_blink           = qla24xx_beacon_blink,
1403         .read_optrom            = qla24xx_read_optrom_data,
1404         .write_optrom           = qla24xx_write_optrom_data,
1405         .get_flash_version      = qla24xx_get_flash_version,
1406         .start_scsi             = qla24xx_start_scsi,
1407 };
1408
1409 static struct isp_operations qla25xx_isp_ops = {
1410         .pci_config             = qla25xx_pci_config,
1411         .reset_chip             = qla24xx_reset_chip,
1412         .chip_diag              = qla24xx_chip_diag,
1413         .config_rings           = qla24xx_config_rings,
1414         .reset_adapter          = qla24xx_reset_adapter,
1415         .nvram_config           = qla24xx_nvram_config,
1416         .update_fw_options      = qla24xx_update_fw_options,
1417         .load_risc              = qla24xx_load_risc,
1418         .pci_info_str           = qla24xx_pci_info_str,
1419         .fw_version_str         = qla24xx_fw_version_str,
1420         .intr_handler           = qla24xx_intr_handler,
1421         .enable_intrs           = qla24xx_enable_intrs,
1422         .disable_intrs          = qla24xx_disable_intrs,
1423         .abort_command          = qla24xx_abort_command,
1424         .target_reset           = qla24xx_abort_target,
1425         .lun_reset              = qla24xx_lun_reset,
1426         .fabric_login           = qla24xx_login_fabric,
1427         .fabric_logout          = qla24xx_fabric_logout,
1428         .calc_req_entries       = NULL,
1429         .build_iocbs            = NULL,
1430         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1431         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1432         .read_nvram             = qla25xx_read_nvram_data,
1433         .write_nvram            = qla25xx_write_nvram_data,
1434         .fw_dump                = qla25xx_fw_dump,
1435         .beacon_on              = qla24xx_beacon_on,
1436         .beacon_off             = qla24xx_beacon_off,
1437         .beacon_blink           = qla24xx_beacon_blink,
1438         .read_optrom            = qla25xx_read_optrom_data,
1439         .write_optrom           = qla24xx_write_optrom_data,
1440         .get_flash_version      = qla24xx_get_flash_version,
1441         .start_scsi             = qla24xx_start_scsi,
1442 };
1443
1444 static struct isp_operations qla81xx_isp_ops = {
1445         .pci_config             = qla25xx_pci_config,
1446         .reset_chip             = qla24xx_reset_chip,
1447         .chip_diag              = qla24xx_chip_diag,
1448         .config_rings           = qla24xx_config_rings,
1449         .reset_adapter          = qla24xx_reset_adapter,
1450         .nvram_config           = qla81xx_nvram_config,
1451         .update_fw_options      = qla81xx_update_fw_options,
1452         .load_risc              = qla81xx_load_risc,
1453         .pci_info_str           = qla24xx_pci_info_str,
1454         .fw_version_str         = qla24xx_fw_version_str,
1455         .intr_handler           = qla24xx_intr_handler,
1456         .enable_intrs           = qla24xx_enable_intrs,
1457         .disable_intrs          = qla24xx_disable_intrs,
1458         .abort_command          = qla24xx_abort_command,
1459         .target_reset           = qla24xx_abort_target,
1460         .lun_reset              = qla24xx_lun_reset,
1461         .fabric_login           = qla24xx_login_fabric,
1462         .fabric_logout          = qla24xx_fabric_logout,
1463         .calc_req_entries       = NULL,
1464         .build_iocbs            = NULL,
1465         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1466         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1467         .read_nvram             = NULL,
1468         .write_nvram            = NULL,
1469         .fw_dump                = qla81xx_fw_dump,
1470         .beacon_on              = qla24xx_beacon_on,
1471         .beacon_off             = qla24xx_beacon_off,
1472         .beacon_blink           = qla24xx_beacon_blink,
1473         .read_optrom            = qla25xx_read_optrom_data,
1474         .write_optrom           = qla24xx_write_optrom_data,
1475         .get_flash_version      = qla24xx_get_flash_version,
1476         .start_scsi             = qla24xx_start_scsi,
1477 };
1478
1479 static inline void
1480 qla2x00_set_isp_flags(struct qla_hw_data *ha)
1481 {
1482         ha->device_type = DT_EXTENDED_IDS;
1483         switch (ha->pdev->device) {
1484         case PCI_DEVICE_ID_QLOGIC_ISP2100:
1485                 ha->device_type |= DT_ISP2100;
1486                 ha->device_type &= ~DT_EXTENDED_IDS;
1487                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1488                 break;
1489         case PCI_DEVICE_ID_QLOGIC_ISP2200:
1490                 ha->device_type |= DT_ISP2200;
1491                 ha->device_type &= ~DT_EXTENDED_IDS;
1492                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1493                 break;
1494         case PCI_DEVICE_ID_QLOGIC_ISP2300:
1495                 ha->device_type |= DT_ISP2300;
1496                 ha->device_type |= DT_ZIO_SUPPORTED;
1497                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1498                 break;
1499         case PCI_DEVICE_ID_QLOGIC_ISP2312:
1500                 ha->device_type |= DT_ISP2312;
1501                 ha->device_type |= DT_ZIO_SUPPORTED;
1502                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1503                 break;
1504         case PCI_DEVICE_ID_QLOGIC_ISP2322:
1505                 ha->device_type |= DT_ISP2322;
1506                 ha->device_type |= DT_ZIO_SUPPORTED;
1507                 if (ha->pdev->subsystem_vendor == 0x1028 &&
1508                     ha->pdev->subsystem_device == 0x0170)
1509                         ha->device_type |= DT_OEM_001;
1510                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1511                 break;
1512         case PCI_DEVICE_ID_QLOGIC_ISP6312:
1513                 ha->device_type |= DT_ISP6312;
1514                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1515                 break;
1516         case PCI_DEVICE_ID_QLOGIC_ISP6322:
1517                 ha->device_type |= DT_ISP6322;
1518                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1519                 break;
1520         case PCI_DEVICE_ID_QLOGIC_ISP2422:
1521                 ha->device_type |= DT_ISP2422;
1522                 ha->device_type |= DT_ZIO_SUPPORTED;
1523                 ha->device_type |= DT_FWI2;
1524                 ha->device_type |= DT_IIDMA;
1525                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1526                 break;
1527         case PCI_DEVICE_ID_QLOGIC_ISP2432:
1528                 ha->device_type |= DT_ISP2432;
1529                 ha->device_type |= DT_ZIO_SUPPORTED;
1530                 ha->device_type |= DT_FWI2;
1531                 ha->device_type |= DT_IIDMA;
1532                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1533                 break;
1534         case PCI_DEVICE_ID_QLOGIC_ISP8432:
1535                 ha->device_type |= DT_ISP8432;
1536                 ha->device_type |= DT_ZIO_SUPPORTED;
1537                 ha->device_type |= DT_FWI2;
1538                 ha->device_type |= DT_IIDMA;
1539                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1540                 break;
1541         case PCI_DEVICE_ID_QLOGIC_ISP5422:
1542                 ha->device_type |= DT_ISP5422;
1543                 ha->device_type |= DT_FWI2;
1544                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1545                 break;
1546         case PCI_DEVICE_ID_QLOGIC_ISP5432:
1547                 ha->device_type |= DT_ISP5432;
1548                 ha->device_type |= DT_FWI2;
1549                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1550                 break;
1551         case PCI_DEVICE_ID_QLOGIC_ISP2532:
1552                 ha->device_type |= DT_ISP2532;
1553                 ha->device_type |= DT_ZIO_SUPPORTED;
1554                 ha->device_type |= DT_FWI2;
1555                 ha->device_type |= DT_IIDMA;
1556                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1557                 break;
1558         case PCI_DEVICE_ID_QLOGIC_ISP8001:
1559                 ha->device_type |= DT_ISP8001;
1560                 ha->device_type |= DT_ZIO_SUPPORTED;
1561                 ha->device_type |= DT_FWI2;
1562                 ha->device_type |= DT_IIDMA;
1563                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1564                 break;
1565         }
1566 }
1567
1568 static int
1569 qla2x00_iospace_config(struct qla_hw_data *ha)
1570 {
1571         resource_size_t pio;
1572         uint16_t msix;
1573         int cpus;
1574
1575         if (pci_request_selected_regions(ha->pdev, ha->bars,
1576             QLA2XXX_DRIVER_NAME)) {
1577                 qla_printk(KERN_WARNING, ha,
1578                     "Failed to reserve PIO/MMIO regions (%s)\n",
1579                     pci_name(ha->pdev));
1580
1581                 goto iospace_error_exit;
1582         }
1583         if (!(ha->bars & 1))
1584                 goto skip_pio;
1585
1586         /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1587         pio = pci_resource_start(ha->pdev, 0);
1588         if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
1589                 if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1590                         qla_printk(KERN_WARNING, ha,
1591                             "Invalid PCI I/O region size (%s)...\n",
1592                                 pci_name(ha->pdev));
1593                         pio = 0;
1594                 }
1595         } else {
1596                 qla_printk(KERN_WARNING, ha,
1597                     "region #0 not a PIO resource (%s)...\n",
1598                     pci_name(ha->pdev));
1599                 pio = 0;
1600         }
1601         ha->pio_address = pio;
1602
1603 skip_pio:
1604         /* Use MMIO operations for all accesses. */
1605         if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
1606                 qla_printk(KERN_ERR, ha,
1607                     "region #1 not an MMIO resource (%s), aborting\n",
1608                     pci_name(ha->pdev));
1609                 goto iospace_error_exit;
1610         }
1611         if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
1612                 qla_printk(KERN_ERR, ha,
1613                     "Invalid PCI mem region size (%s), aborting\n",
1614                         pci_name(ha->pdev));
1615                 goto iospace_error_exit;
1616         }
1617
1618         ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
1619         if (!ha->iobase) {
1620                 qla_printk(KERN_ERR, ha,
1621                     "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1622
1623                 goto iospace_error_exit;
1624         }
1625
1626         /* Determine queue resources */
1627         ha->max_req_queues = ha->max_rsp_queues = 1;
1628         if ((ql2xmaxqueues <= 1 || ql2xmultique_tag < 1) &&
1629                 (!IS_QLA25XX(ha) && !IS_QLA81XX(ha)))
1630                 goto mqiobase_exit;
1631         ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 3),
1632                         pci_resource_len(ha->pdev, 3));
1633         if (ha->mqiobase) {
1634                 /* Read MSIX vector size of the board */
1635                 pci_read_config_word(ha->pdev, QLA_PCI_MSIX_CONTROL, &msix);
1636                 ha->msix_count = msix;
1637                 /* Max queues are bounded by available msix vectors */
1638                 /* queue 0 uses two msix vectors */
1639                 if (ql2xmultique_tag) {
1640                         cpus = num_online_cpus();
1641                         ha->max_rsp_queues = (ha->msix_count - 1 - cpus) ?
1642                                 (cpus + 1) : (ha->msix_count - 1);
1643                         ha->max_req_queues = 2;
1644                 } else if (ql2xmaxqueues > 1) {
1645                         ha->max_req_queues = ql2xmaxqueues > QLA_MQ_SIZE ?
1646                                                 QLA_MQ_SIZE : ql2xmaxqueues;
1647                         DEBUG2(qla_printk(KERN_INFO, ha, "QoS mode set, max no"
1648                         " of request queues:%d\n", ha->max_req_queues));
1649                 }
1650                 qla_printk(KERN_INFO, ha,
1651                         "MSI-X vector count: %d\n", msix);
1652         } else
1653                 qla_printk(KERN_INFO, ha, "BAR 3 not enabled\n");
1654
1655 mqiobase_exit:
1656         ha->msix_count = ha->max_rsp_queues + 1;
1657         return (0);
1658
1659 iospace_error_exit:
1660         return (-ENOMEM);
1661 }
1662
1663 static void
1664 qla2xxx_scan_start(struct Scsi_Host *shost)
1665 {
1666         scsi_qla_host_t *vha = shost_priv(shost);
1667
1668         set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1669         set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1670         set_bit(RSCN_UPDATE, &vha->dpc_flags);
1671         set_bit(NPIV_CONFIG_NEEDED, &vha->dpc_flags);
1672 }
1673
1674 static int
1675 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1676 {
1677         scsi_qla_host_t *vha = shost_priv(shost);
1678
1679         if (!vha->host)
1680                 return 1;
1681         if (time > vha->hw->loop_reset_delay * HZ)
1682                 return 1;
1683
1684         return atomic_read(&vha->loop_state) == LOOP_READY;
1685 }
1686
1687 /*
1688  * PCI driver interface
1689  */
1690 static int __devinit
1691 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1692 {
1693         int     ret = -ENODEV;
1694         struct Scsi_Host *host;
1695         scsi_qla_host_t *base_vha = NULL;
1696         struct qla_hw_data *ha;
1697         char pci_info[30];
1698         char fw_str[30];
1699         struct scsi_host_template *sht;
1700         int bars, max_id, mem_only = 0;
1701         uint16_t req_length = 0, rsp_length = 0;
1702         struct req_que *req = NULL;
1703         struct rsp_que *rsp = NULL;
1704
1705         bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
1706         sht = &qla2xxx_driver_template;
1707         if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1708             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1709             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8432 ||
1710             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1711             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
1712             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532 ||
1713             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8001) {
1714                 bars = pci_select_bars(pdev, IORESOURCE_MEM);
1715                 mem_only = 1;
1716         }
1717
1718         if (mem_only) {
1719                 if (pci_enable_device_mem(pdev))
1720                         goto probe_out;
1721         } else {
1722                 if (pci_enable_device(pdev))
1723                         goto probe_out;
1724         }
1725
1726         /* This may fail but that's ok */
1727         pci_enable_pcie_error_reporting(pdev);
1728
1729         ha = kzalloc(sizeof(struct qla_hw_data), GFP_KERNEL);
1730         if (!ha) {
1731                 DEBUG(printk("Unable to allocate memory for ha\n"));
1732                 goto probe_out;
1733         }
1734         ha->pdev = pdev;
1735
1736         /* Clear our data area */
1737         ha->bars = bars;
1738         ha->mem_only = mem_only;
1739         spin_lock_init(&ha->hardware_lock);
1740
1741         /* Set ISP-type information. */
1742         qla2x00_set_isp_flags(ha);
1743         /* Configure PCI I/O space */
1744         ret = qla2x00_iospace_config(ha);
1745         if (ret)
1746                 goto probe_hw_failed;
1747
1748         qla_printk(KERN_INFO, ha,
1749             "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1750             ha->iobase);
1751
1752         ha->prev_topology = 0;
1753         ha->init_cb_size = sizeof(init_cb_t);
1754         ha->link_data_rate = PORT_SPEED_UNKNOWN;
1755         ha->optrom_size = OPTROM_SIZE_2300;
1756
1757         /* Assign ISP specific operations. */
1758         max_id = MAX_TARGETS_2200;
1759         if (IS_QLA2100(ha)) {
1760                 max_id = MAX_TARGETS_2100;
1761                 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1762                 req_length = REQUEST_ENTRY_CNT_2100;
1763                 rsp_length = RESPONSE_ENTRY_CNT_2100;
1764                 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
1765                 ha->gid_list_info_size = 4;
1766                 ha->flash_conf_off = ~0;
1767                 ha->flash_data_off = ~0;
1768                 ha->nvram_conf_off = ~0;
1769                 ha->nvram_data_off = ~0;
1770                 ha->isp_ops = &qla2100_isp_ops;
1771         } else if (IS_QLA2200(ha)) {
1772                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1773                 req_length = REQUEST_ENTRY_CNT_2200;
1774                 rsp_length = RESPONSE_ENTRY_CNT_2100;
1775                 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
1776                 ha->gid_list_info_size = 4;
1777                 ha->flash_conf_off = ~0;
1778                 ha->flash_data_off = ~0;
1779                 ha->nvram_conf_off = ~0;
1780                 ha->nvram_data_off = ~0;
1781                 ha->isp_ops = &qla2100_isp_ops;
1782         } else if (IS_QLA23XX(ha)) {
1783                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1784                 req_length = REQUEST_ENTRY_CNT_2200;
1785                 rsp_length = RESPONSE_ENTRY_CNT_2300;
1786                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
1787                 ha->gid_list_info_size = 6;
1788                 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1789                         ha->optrom_size = OPTROM_SIZE_2322;
1790                 ha->flash_conf_off = ~0;
1791                 ha->flash_data_off = ~0;
1792                 ha->nvram_conf_off = ~0;
1793                 ha->nvram_data_off = ~0;
1794                 ha->isp_ops = &qla2300_isp_ops;
1795         } else if (IS_QLA24XX_TYPE(ha)) {
1796                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1797                 req_length = REQUEST_ENTRY_CNT_24XX;
1798                 rsp_length = RESPONSE_ENTRY_CNT_2300;
1799                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
1800                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1801                 ha->gid_list_info_size = 8;
1802                 ha->optrom_size = OPTROM_SIZE_24XX;
1803                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA24XX;
1804                 ha->isp_ops = &qla24xx_isp_ops;
1805                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
1806                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
1807                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
1808                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
1809         } else if (IS_QLA25XX(ha)) {
1810                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1811                 req_length = REQUEST_ENTRY_CNT_24XX;
1812                 rsp_length = RESPONSE_ENTRY_CNT_2300;
1813                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
1814                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1815                 ha->gid_list_info_size = 8;
1816                 ha->optrom_size = OPTROM_SIZE_25XX;
1817                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
1818                 ha->isp_ops = &qla25xx_isp_ops;
1819                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
1820                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
1821                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
1822                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
1823         } else if (IS_QLA81XX(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_81xx);
1829                 ha->gid_list_info_size = 8;
1830                 ha->optrom_size = OPTROM_SIZE_81XX;
1831                 ha->isp_ops = &qla81xx_isp_ops;
1832                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
1833                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
1834                 ha->nvram_conf_off = ~0;
1835                 ha->nvram_data_off = ~0;
1836         }
1837
1838         mutex_init(&ha->vport_lock);
1839         init_completion(&ha->mbx_cmd_comp);
1840         complete(&ha->mbx_cmd_comp);
1841         init_completion(&ha->mbx_intr_comp);
1842
1843         set_bit(0, (unsigned long *) ha->vp_idx_map);
1844
1845         qla2x00_config_dma_addressing(ha);
1846         ret = qla2x00_mem_alloc(ha, req_length, rsp_length, &req, &rsp);
1847         if (!ret) {
1848                 qla_printk(KERN_WARNING, ha,
1849                     "[ERROR] Failed to allocate memory for adapter\n");
1850
1851                 goto probe_hw_failed;
1852         }
1853
1854         req->max_q_depth = MAX_Q_DEPTH;
1855         if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
1856                 req->max_q_depth = ql2xmaxqdepth;
1857
1858
1859         base_vha = qla2x00_create_host(sht, ha);
1860         if (!base_vha) {
1861                 qla_printk(KERN_WARNING, ha,
1862                     "[ERROR] Failed to allocate memory for scsi_host\n");
1863
1864                 ret = -ENOMEM;
1865                 qla2x00_mem_free(ha);
1866                 qla2x00_free_req_que(ha, req);
1867                 qla2x00_free_rsp_que(ha, rsp);
1868                 goto probe_hw_failed;
1869         }
1870
1871         pci_set_drvdata(pdev, base_vha);
1872
1873         host = base_vha->host;
1874         base_vha->req = req;
1875         host->can_queue = req->length + 128;
1876         if (IS_QLA2XXX_MIDTYPE(ha))
1877                 base_vha->mgmt_svr_loop_id = 10 + base_vha->vp_idx;
1878         else
1879                 base_vha->mgmt_svr_loop_id = MANAGEMENT_SERVER +
1880                                                 base_vha->vp_idx;
1881         if (IS_QLA2100(ha))
1882                 host->sg_tablesize = 32;
1883         host->max_id = max_id;
1884         host->this_id = 255;
1885         host->cmd_per_lun = 3;
1886         host->unique_id = host->host_no;
1887         host->max_cmd_len = MAX_CMDSZ;
1888         host->max_channel = MAX_BUSES - 1;
1889         host->max_lun = MAX_LUNS;
1890         host->transportt = qla2xxx_transport_template;
1891
1892         /* Set up the irqs */
1893         ret = qla2x00_request_irqs(ha, rsp);
1894         if (ret)
1895                 goto probe_init_failed;
1896         /* Alloc arrays of request and response ring ptrs */
1897         if (!qla2x00_alloc_queues(ha)) {
1898                 qla_printk(KERN_WARNING, ha,
1899                 "[ERROR] Failed to allocate memory for queue"
1900                 " pointers\n");
1901                 goto probe_init_failed;
1902         }
1903         ha->rsp_q_map[0] = rsp;
1904         ha->req_q_map[0] = req;
1905         rsp->req = req;
1906         req->rsp = rsp;
1907         set_bit(0, ha->req_qid_map);
1908         set_bit(0, ha->rsp_qid_map);
1909         /* FWI2-capable only. */
1910         req->req_q_in = &ha->iobase->isp24.req_q_in;
1911         req->req_q_out = &ha->iobase->isp24.req_q_out;
1912         rsp->rsp_q_in = &ha->iobase->isp24.rsp_q_in;
1913         rsp->rsp_q_out = &ha->iobase->isp24.rsp_q_out;
1914         if (ha->mqenable) {
1915                 req->req_q_in = &ha->mqiobase->isp25mq.req_q_in;
1916                 req->req_q_out = &ha->mqiobase->isp25mq.req_q_out;
1917                 rsp->rsp_q_in = &ha->mqiobase->isp25mq.rsp_q_in;
1918                 rsp->rsp_q_out =  &ha->mqiobase->isp25mq.rsp_q_out;
1919         }
1920
1921         if (qla2x00_initialize_adapter(base_vha)) {
1922                 qla_printk(KERN_WARNING, ha,
1923                     "Failed to initialize adapter\n");
1924
1925                 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1926                     "Adapter flags %x.\n",
1927                     base_vha->host_no, base_vha->device_flags));
1928
1929                 ret = -ENODEV;
1930                 goto probe_failed;
1931         }
1932
1933         if (ha->mqenable)
1934                 if (qla25xx_setup_mode(base_vha))
1935                         qla_printk(KERN_WARNING, ha,
1936                                 "Can't create queues, falling back to single"
1937                                 " queue mode\n");
1938
1939         /*
1940          * Startup the kernel thread for this host adapter
1941          */
1942         ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
1943                         "%s_dpc", base_vha->host_str);
1944         if (IS_ERR(ha->dpc_thread)) {
1945                 qla_printk(KERN_WARNING, ha,
1946                     "Unable to start DPC thread!\n");
1947                 ret = PTR_ERR(ha->dpc_thread);
1948                 goto probe_failed;
1949         }
1950
1951         list_add_tail(&base_vha->list, &ha->vp_list);
1952         base_vha->host->irq = ha->pdev->irq;
1953
1954         /* Initialized the timer */
1955         qla2x00_start_timer(base_vha, qla2x00_timer, WATCH_INTERVAL);
1956
1957         DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1958             base_vha->host_no, ha));
1959
1960         base_vha->flags.init_done = 1;
1961         base_vha->flags.online = 1;
1962
1963         ret = scsi_add_host(host, &pdev->dev);
1964         if (ret)
1965                 goto probe_failed;
1966
1967         ha->isp_ops->enable_intrs(ha);
1968
1969         scsi_scan_host(host);
1970
1971         qla2x00_alloc_sysfs_attr(base_vha);
1972
1973         qla2x00_init_host_attr(base_vha);
1974
1975         qla2x00_dfs_setup(base_vha);
1976
1977         qla_printk(KERN_INFO, ha, "\n"
1978             " QLogic Fibre Channel HBA Driver: %s\n"
1979             "  QLogic %s - %s\n"
1980             "  ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1981             qla2x00_version_str, ha->model_number,
1982             ha->model_desc ? ha->model_desc : "", pdev->device,
1983             ha->isp_ops->pci_info_str(base_vha, pci_info), pci_name(pdev),
1984             ha->flags.enable_64bit_addressing ? '+' : '-', base_vha->host_no,
1985             ha->isp_ops->fw_version_str(base_vha, fw_str));
1986
1987         return 0;
1988
1989 probe_init_failed:
1990         qla2x00_free_req_que(ha, req);
1991         qla2x00_free_rsp_que(ha, rsp);
1992         ha->max_req_queues = ha->max_rsp_queues = 0;
1993
1994 probe_failed:
1995         if (base_vha->timer_active)
1996                 qla2x00_stop_timer(base_vha);
1997         base_vha->flags.online = 0;
1998         if (ha->dpc_thread) {
1999                 struct task_struct *t = ha->dpc_thread;
2000
2001                 ha->dpc_thread = NULL;
2002                 kthread_stop(t);
2003         }
2004
2005         qla2x00_free_device(base_vha);
2006
2007         scsi_host_put(base_vha->host);
2008
2009 probe_hw_failed:
2010         if (ha->iobase)
2011                 iounmap(ha->iobase);
2012
2013         pci_release_selected_regions(ha->pdev, ha->bars);
2014         kfree(ha);
2015         ha = NULL;
2016
2017 probe_out:
2018         pci_disable_device(pdev);
2019         return ret;
2020 }
2021
2022 static void
2023 qla2x00_remove_one(struct pci_dev *pdev)
2024 {
2025         scsi_qla_host_t *base_vha, *vha, *temp;
2026         struct qla_hw_data  *ha;
2027
2028         base_vha = pci_get_drvdata(pdev);
2029         ha = base_vha->hw;
2030
2031         list_for_each_entry_safe(vha, temp, &ha->vp_list, list) {
2032                 if (vha && vha->fc_vport)
2033                         fc_vport_terminate(vha->fc_vport);
2034         }
2035
2036         set_bit(UNLOADING, &base_vha->dpc_flags);
2037
2038         qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
2039
2040         qla2x00_dfs_remove(base_vha);
2041
2042         qla84xx_put_chip(base_vha);
2043
2044         /* Disable timer */
2045         if (base_vha->timer_active)
2046                 qla2x00_stop_timer(base_vha);
2047
2048         base_vha->flags.online = 0;
2049
2050         /* Flush the work queue and remove it */
2051         if (ha->wq) {
2052                 flush_workqueue(ha->wq);
2053                 destroy_workqueue(ha->wq);
2054                 ha->wq = NULL;
2055         }
2056
2057         /* Kill the kernel thread for this host */
2058         if (ha->dpc_thread) {
2059                 struct task_struct *t = ha->dpc_thread;
2060
2061                 /*
2062                  * qla2xxx_wake_dpc checks for ->dpc_thread
2063                  * so we need to zero it out.
2064                  */
2065                 ha->dpc_thread = NULL;
2066                 kthread_stop(t);
2067         }
2068
2069         qla2x00_free_sysfs_attr(base_vha);
2070
2071         fc_remove_host(base_vha->host);
2072
2073         scsi_remove_host(base_vha->host);
2074
2075         qla2x00_free_device(base_vha);
2076
2077         scsi_host_put(base_vha->host);
2078
2079         if (ha->iobase)
2080                 iounmap(ha->iobase);
2081
2082         if (ha->mqiobase)
2083                 iounmap(ha->mqiobase);
2084
2085         pci_release_selected_regions(ha->pdev, ha->bars);
2086         kfree(ha);
2087         ha = NULL;
2088
2089         pci_disable_device(pdev);
2090         pci_set_drvdata(pdev, NULL);
2091 }
2092
2093 static void
2094 qla2x00_free_device(scsi_qla_host_t *vha)
2095 {
2096         struct qla_hw_data *ha = vha->hw;
2097
2098         qla25xx_delete_queues(vha);
2099
2100         if (ha->flags.fce_enabled)
2101                 qla2x00_disable_fce_trace(vha, NULL, NULL);
2102
2103         if (ha->eft)
2104                 qla2x00_disable_eft_trace(vha);
2105
2106         /* Stop currently executing firmware. */
2107         qla2x00_try_to_stop_firmware(vha);
2108
2109         /* turn-off interrupts on the card */
2110         if (ha->interrupts_on)
2111                 ha->isp_ops->disable_intrs(ha);
2112
2113         qla2x00_free_irqs(vha);
2114
2115         qla2x00_mem_free(ha);
2116
2117         qla2x00_free_queues(ha);
2118 }
2119
2120 static inline void
2121 qla2x00_schedule_rport_del(struct scsi_qla_host *vha, fc_port_t *fcport,
2122     int defer)
2123 {
2124         struct fc_rport *rport;
2125
2126         if (!fcport->rport)
2127                 return;
2128
2129         rport = fcport->rport;
2130         if (defer) {
2131                 spin_lock_irq(vha->host->host_lock);
2132                 fcport->drport = rport;
2133                 spin_unlock_irq(vha->host->host_lock);
2134                 set_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags);
2135                 qla2xxx_wake_dpc(vha);
2136         } else
2137                 fc_remote_port_delete(rport);
2138 }
2139
2140 /*
2141  * qla2x00_mark_device_lost Updates fcport state when device goes offline.
2142  *
2143  * Input: ha = adapter block pointer.  fcport = port structure pointer.
2144  *
2145  * Return: None.
2146  *
2147  * Context:
2148  */
2149 void qla2x00_mark_device_lost(scsi_qla_host_t *vha, fc_port_t *fcport,
2150     int do_login, int defer)
2151 {
2152         if (atomic_read(&fcport->state) == FCS_ONLINE &&
2153             vha->vp_idx == fcport->vp_idx) {
2154                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2155                 qla2x00_schedule_rport_del(vha, fcport, defer);
2156         }
2157         /*
2158          * We may need to retry the login, so don't change the state of the
2159          * port but do the retries.
2160          */
2161         if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
2162                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2163
2164         if (!do_login)
2165                 return;
2166
2167         if (fcport->login_retry == 0) {
2168                 fcport->login_retry = vha->hw->login_retry_count;
2169                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2170
2171                 DEBUG(printk("scsi(%ld): Port login retry: "
2172                     "%02x%02x%02x%02x%02x%02x%02x%02x, "
2173                     "id = 0x%04x retry cnt=%d\n",
2174                     vha->host_no,
2175                     fcport->port_name[0],
2176                     fcport->port_name[1],
2177                     fcport->port_name[2],
2178                     fcport->port_name[3],
2179                     fcport->port_name[4],
2180                     fcport->port_name[5],
2181                     fcport->port_name[6],
2182                     fcport->port_name[7],
2183                     fcport->loop_id,
2184                     fcport->login_retry));
2185         }
2186 }
2187
2188 /*
2189  * qla2x00_mark_all_devices_lost
2190  *      Updates fcport state when device goes offline.
2191  *
2192  * Input:
2193  *      ha = adapter block pointer.
2194  *      fcport = port structure pointer.
2195  *
2196  * Return:
2197  *      None.
2198  *
2199  * Context:
2200  */
2201 void
2202 qla2x00_mark_all_devices_lost(scsi_qla_host_t *vha, int defer)
2203 {
2204         fc_port_t *fcport;
2205
2206         list_for_each_entry(fcport, &vha->vp_fcports, list) {
2207                 if (vha->vp_idx != fcport->vp_idx)
2208                         continue;
2209                 /*
2210                  * No point in marking the device as lost, if the device is
2211                  * already DEAD.
2212                  */
2213                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
2214                         continue;
2215                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
2216                         atomic_set(&fcport->state, FCS_DEVICE_LOST);
2217                         qla2x00_schedule_rport_del(vha, fcport, defer);
2218                 } else
2219                         atomic_set(&fcport->state, FCS_DEVICE_LOST);
2220         }
2221 }
2222
2223 /*
2224 * qla2x00_mem_alloc
2225 *      Allocates adapter memory.
2226 *
2227 * Returns:
2228 *      0  = success.
2229 *      !0  = failure.
2230 */
2231 static int
2232 qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
2233         struct req_que **req, struct rsp_que **rsp)
2234 {
2235         char    name[16];
2236
2237         ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
2238                 &ha->init_cb_dma, GFP_KERNEL);
2239         if (!ha->init_cb)
2240                 goto fail;
2241
2242         ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
2243                 &ha->gid_list_dma, GFP_KERNEL);
2244         if (!ha->gid_list)
2245                 goto fail_free_init_cb;
2246
2247         ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
2248         if (!ha->srb_mempool)
2249                 goto fail_free_gid_list;
2250
2251         /* Get memory for cached NVRAM */
2252         ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
2253         if (!ha->nvram)
2254                 goto fail_free_srb_mempool;
2255
2256         snprintf(name, sizeof(name), "%s_%d", QLA2XXX_DRIVER_NAME,
2257                 ha->pdev->device);
2258         ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2259                 DMA_POOL_SIZE, 8, 0);
2260         if (!ha->s_dma_pool)
2261                 goto fail_free_nvram;
2262
2263         /* Allocate memory for SNS commands */
2264         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2265         /* Get consistent memory allocated for SNS commands */
2266                 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
2267                 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
2268                 if (!ha->sns_cmd)
2269                         goto fail_dma_pool;
2270         } else {
2271         /* Get consistent memory allocated for MS IOCB */
2272                 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2273                         &ha->ms_iocb_dma);
2274                 if (!ha->ms_iocb)
2275                         goto fail_dma_pool;
2276         /* Get consistent memory allocated for CT SNS commands */
2277                 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2278                         sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
2279                 if (!ha->ct_sns)
2280                         goto fail_free_ms_iocb;
2281         }
2282
2283         /* Allocate memory for request ring */
2284         *req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
2285         if (!*req) {
2286                 DEBUG(printk("Unable to allocate memory for req\n"));
2287                 goto fail_req;
2288         }
2289         (*req)->length = req_len;
2290         (*req)->ring = dma_alloc_coherent(&ha->pdev->dev,
2291                 ((*req)->length + 1) * sizeof(request_t),
2292                 &(*req)->dma, GFP_KERNEL);
2293         if (!(*req)->ring) {
2294                 DEBUG(printk("Unable to allocate memory for req_ring\n"));
2295                 goto fail_req_ring;
2296         }
2297         /* Allocate memory for response ring */
2298         *rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
2299         if (!*rsp) {
2300                 qla_printk(KERN_WARNING, ha,
2301                         "Unable to allocate memory for rsp\n");
2302                 goto fail_rsp;
2303         }
2304         (*rsp)->hw = ha;
2305         (*rsp)->length = rsp_len;
2306         (*rsp)->ring = dma_alloc_coherent(&ha->pdev->dev,
2307                 ((*rsp)->length + 1) * sizeof(response_t),
2308                 &(*rsp)->dma, GFP_KERNEL);
2309         if (!(*rsp)->ring) {
2310                 qla_printk(KERN_WARNING, ha,
2311                         "Unable to allocate memory for rsp_ring\n");
2312                 goto fail_rsp_ring;
2313         }
2314         (*req)->rsp = *rsp;
2315         (*rsp)->req = *req;
2316         /* Allocate memory for NVRAM data for vports */
2317         if (ha->nvram_npiv_size) {
2318                 ha->npiv_info = kzalloc(sizeof(struct qla_npiv_entry) *
2319                                         ha->nvram_npiv_size, GFP_KERNEL);
2320                 if (!ha->npiv_info) {
2321                         qla_printk(KERN_WARNING, ha,
2322                                 "Unable to allocate memory for npiv info\n");
2323                         goto fail_npiv_info;
2324                 }
2325         } else
2326                 ha->npiv_info = NULL;
2327
2328         /* Get consistent memory allocated for EX-INIT-CB. */
2329         if (IS_QLA81XX(ha)) {
2330                 ha->ex_init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2331                     &ha->ex_init_cb_dma);
2332                 if (!ha->ex_init_cb)
2333                         goto fail_ex_init_cb;
2334         }
2335
2336         INIT_LIST_HEAD(&ha->vp_list);
2337         return 1;
2338
2339 fail_ex_init_cb:
2340         kfree(ha->npiv_info);
2341 fail_npiv_info:
2342         dma_free_coherent(&ha->pdev->dev, ((*rsp)->length + 1) *
2343                 sizeof(response_t), (*rsp)->ring, (*rsp)->dma);
2344         (*rsp)->ring = NULL;
2345         (*rsp)->dma = 0;
2346 fail_rsp_ring:
2347         kfree(*rsp);
2348 fail_rsp:
2349         dma_free_coherent(&ha->pdev->dev, ((*req)->length + 1) *
2350                 sizeof(request_t), (*req)->ring, (*req)->dma);
2351         (*req)->ring = NULL;
2352         (*req)->dma = 0;
2353 fail_req_ring:
2354         kfree(*req);
2355 fail_req:
2356         dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2357                 ha->ct_sns, ha->ct_sns_dma);
2358         ha->ct_sns = NULL;
2359         ha->ct_sns_dma = 0;
2360 fail_free_ms_iocb:
2361         dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2362         ha->ms_iocb = NULL;
2363         ha->ms_iocb_dma = 0;
2364 fail_dma_pool:
2365         dma_pool_destroy(ha->s_dma_pool);
2366         ha->s_dma_pool = NULL;
2367 fail_free_nvram:
2368         kfree(ha->nvram);
2369         ha->nvram = NULL;
2370 fail_free_srb_mempool:
2371         mempool_destroy(ha->srb_mempool);
2372         ha->srb_mempool = NULL;
2373 fail_free_gid_list:
2374         dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2375         ha->gid_list_dma);
2376         ha->gid_list = NULL;
2377         ha->gid_list_dma = 0;
2378 fail_free_init_cb:
2379         dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
2380         ha->init_cb_dma);
2381         ha->init_cb = NULL;
2382         ha->init_cb_dma = 0;
2383 fail:
2384         DEBUG(printk("%s: Memory allocation failure\n", __func__));
2385         return -ENOMEM;
2386 }
2387
2388 /*
2389 * qla2x00_mem_free
2390 *      Frees all adapter allocated memory.
2391 *
2392 * Input:
2393 *      ha = adapter block pointer.
2394 */
2395 static void
2396 qla2x00_mem_free(struct qla_hw_data *ha)
2397 {
2398         if (ha->srb_mempool)
2399                 mempool_destroy(ha->srb_mempool);
2400
2401         if (ha->fce)
2402                 dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
2403                 ha->fce_dma);
2404
2405         if (ha->fw_dump) {
2406                 if (ha->eft)
2407                         dma_free_coherent(&ha->pdev->dev,
2408                         ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2409                 vfree(ha->fw_dump);
2410         }
2411
2412         if (ha->sns_cmd)
2413                 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2414                 ha->sns_cmd, ha->sns_cmd_dma);
2415
2416         if (ha->ct_sns)
2417                 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2418                 ha->ct_sns, ha->ct_sns_dma);
2419
2420         if (ha->sfp_data)
2421                 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2422
2423         if (ha->edc_data)
2424                 dma_pool_free(ha->s_dma_pool, ha->edc_data, ha->edc_data_dma);
2425
2426         if (ha->ms_iocb)
2427                 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2428
2429         if (ha->ex_init_cb)
2430                 dma_pool_free(ha->s_dma_pool, ha->ex_init_cb, ha->ex_init_cb_dma);
2431
2432         if (ha->s_dma_pool)
2433                 dma_pool_destroy(ha->s_dma_pool);
2434
2435         if (ha->gid_list)
2436                 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2437                 ha->gid_list_dma);
2438
2439         if (ha->init_cb)
2440                 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
2441                 ha->init_cb, ha->init_cb_dma);
2442         vfree(ha->optrom_buffer);
2443         kfree(ha->nvram);
2444         kfree(ha->npiv_info);
2445
2446         ha->srb_mempool = NULL;
2447         ha->eft = NULL;
2448         ha->eft_dma = 0;
2449         ha->sns_cmd = NULL;
2450         ha->sns_cmd_dma = 0;
2451         ha->ct_sns = NULL;
2452         ha->ct_sns_dma = 0;
2453         ha->ms_iocb = NULL;
2454         ha->ms_iocb_dma = 0;
2455         ha->init_cb = NULL;
2456         ha->init_cb_dma = 0;
2457         ha->ex_init_cb = NULL;
2458         ha->ex_init_cb_dma = 0;
2459
2460         ha->s_dma_pool = NULL;
2461
2462         ha->gid_list = NULL;
2463         ha->gid_list_dma = 0;
2464
2465         ha->fw_dump = NULL;
2466         ha->fw_dumped = 0;
2467         ha->fw_dump_reading = 0;
2468 }
2469
2470 struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht,
2471                                                 struct qla_hw_data *ha)
2472 {
2473         struct Scsi_Host *host;
2474         struct scsi_qla_host *vha = NULL;
2475
2476         host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
2477         if (host == NULL) {
2478                 printk(KERN_WARNING
2479                 "qla2xxx: Couldn't allocate host from scsi layer!\n");
2480                 goto fail;
2481         }
2482
2483         /* Clear our data area */
2484         vha = shost_priv(host);
2485         memset(vha, 0, sizeof(scsi_qla_host_t));
2486
2487         vha->host = host;
2488         vha->host_no = host->host_no;
2489         vha->hw = ha;
2490
2491         INIT_LIST_HEAD(&vha->vp_fcports);
2492         INIT_LIST_HEAD(&vha->work_list);
2493         INIT_LIST_HEAD(&vha->list);
2494
2495         sprintf(vha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, vha->host_no);
2496         return vha;
2497
2498 fail:
2499         return vha;
2500 }
2501
2502 static struct qla_work_evt *
2503 qla2x00_alloc_work(struct scsi_qla_host *vha, enum qla_work_type type,
2504     int locked)
2505 {
2506         struct qla_work_evt *e;
2507
2508         e = kzalloc(sizeof(struct qla_work_evt), locked ? GFP_ATOMIC:
2509             GFP_KERNEL);
2510         if (!e)
2511                 return NULL;
2512
2513         INIT_LIST_HEAD(&e->list);
2514         e->type = type;
2515         e->flags = QLA_EVT_FLAG_FREE;
2516         return e;
2517 }
2518
2519 static int
2520 qla2x00_post_work(struct scsi_qla_host *vha, struct qla_work_evt *e, int locked)
2521 {
2522         unsigned long uninitialized_var(flags);
2523         struct qla_hw_data *ha = vha->hw;
2524
2525         if (!locked)
2526                 spin_lock_irqsave(&ha->hardware_lock, flags);
2527         list_add_tail(&e->list, &vha->work_list);
2528         qla2xxx_wake_dpc(vha);
2529         if (!locked)
2530                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2531         return QLA_SUCCESS;
2532 }
2533
2534 int
2535 qla2x00_post_aen_work(struct scsi_qla_host *vha, enum fc_host_event_code code,
2536     u32 data)
2537 {
2538         struct qla_work_evt *e;
2539
2540         e = qla2x00_alloc_work(vha, QLA_EVT_AEN, 1);
2541         if (!e)
2542                 return QLA_FUNCTION_FAILED;
2543
2544         e->u.aen.code = code;
2545         e->u.aen.data = data;
2546         return qla2x00_post_work(vha, e, 1);
2547 }
2548
2549 int
2550 qla2x00_post_idc_ack_work(struct scsi_qla_host *vha, uint16_t *mb)
2551 {
2552         struct qla_work_evt *e;
2553
2554         e = qla2x00_alloc_work(vha, QLA_EVT_IDC_ACK, 1);
2555         if (!e)
2556                 return QLA_FUNCTION_FAILED;
2557
2558         memcpy(e->u.idc_ack.mb, mb, QLA_IDC_ACK_REGS * sizeof(uint16_t));
2559         return qla2x00_post_work(vha, e, 1);
2560 }
2561
2562 static void
2563 qla2x00_do_work(struct scsi_qla_host *vha)
2564 {
2565         struct qla_work_evt *e;
2566         struct qla_hw_data *ha = vha->hw;
2567
2568         spin_lock_irq(&ha->hardware_lock);
2569         while (!list_empty(&vha->work_list)) {
2570                 e = list_entry(vha->work_list.next, struct qla_work_evt, list);
2571                 list_del_init(&e->list);
2572                 spin_unlock_irq(&ha->hardware_lock);
2573
2574                 switch (e->type) {
2575                 case QLA_EVT_AEN:
2576                         fc_host_post_event(vha->host, fc_get_event_number(),
2577                             e->u.aen.code, e->u.aen.data);
2578                         break;
2579                 case QLA_EVT_IDC_ACK:
2580                         qla81xx_idc_ack(vha, e->u.idc_ack.mb);
2581                         break;
2582                 }
2583                 if (e->flags & QLA_EVT_FLAG_FREE)
2584                         kfree(e);
2585                 spin_lock_irq(&ha->hardware_lock);
2586         }
2587         spin_unlock_irq(&ha->hardware_lock);
2588 }
2589 /* Relogins all the fcports of a vport
2590  * Context: dpc thread
2591  */
2592 void qla2x00_relogin(struct scsi_qla_host *vha)
2593 {
2594         fc_port_t       *fcport;
2595         int status;
2596         uint16_t        next_loopid = 0;
2597         struct qla_hw_data *ha = vha->hw;
2598
2599         list_for_each_entry(fcport, &vha->vp_fcports, list) {
2600         /*
2601          * If the port is not ONLINE then try to login
2602          * to it if we haven't run out of retries.
2603          */
2604                 if (atomic_read(&fcport->state) !=
2605                         FCS_ONLINE && fcport->login_retry) {
2606
2607                         if (fcport->flags & FCF_FABRIC_DEVICE) {
2608                                 if (fcport->flags & FCF_TAPE_PRESENT)
2609                                         ha->isp_ops->fabric_logout(vha,
2610                                                         fcport->loop_id,
2611                                                         fcport->d_id.b.domain,
2612                                                         fcport->d_id.b.area,
2613                                                         fcport->d_id.b.al_pa);
2614
2615                                 status = qla2x00_fabric_login(vha, fcport,
2616                                                         &next_loopid);
2617                         } else
2618                                 status = qla2x00_local_device_login(vha,
2619                                                                 fcport);
2620
2621                         fcport->login_retry--;
2622                         if (status == QLA_SUCCESS) {
2623                                 fcport->old_loop_id = fcport->loop_id;
2624
2625                                 DEBUG(printk("scsi(%ld): port login OK: logged "
2626                                 "in ID 0x%x\n", vha->host_no, fcport->loop_id));
2627
2628                                 qla2x00_update_fcport(vha, fcport);
2629
2630                         } else if (status == 1) {
2631                                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2632                                 /* retry the login again */
2633                                 DEBUG(printk("scsi(%ld): Retrying"
2634                                 " %d login again loop_id 0x%x\n",
2635                                 vha->host_no, fcport->login_retry,
2636                                                 fcport->loop_id));
2637                         } else {
2638                                 fcport->login_retry = 0;
2639                         }
2640
2641                         if (fcport->login_retry == 0 && status != QLA_SUCCESS)
2642                                 fcport->loop_id = FC_NO_LOOP_ID;
2643                 }
2644                 if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
2645                         break;
2646         }
2647 }
2648
2649 /**************************************************************************
2650 * qla2x00_do_dpc
2651 *   This kernel thread is a task that is schedule by the interrupt handler
2652 *   to perform the background processing for interrupts.
2653 *
2654 * Notes:
2655 * This task always run in the context of a kernel thread.  It
2656 * is kick-off by the driver's detect code and starts up
2657 * up one per adapter. It immediately goes to sleep and waits for
2658 * some fibre event.  When either the interrupt handler or
2659 * the timer routine detects a event it will one of the task
2660 * bits then wake us up.
2661 **************************************************************************/
2662 static int
2663 qla2x00_do_dpc(void *data)
2664 {
2665         int             rval;
2666         scsi_qla_host_t *base_vha;
2667         struct qla_hw_data *ha;
2668
2669         ha = (struct qla_hw_data *)data;
2670         base_vha = pci_get_drvdata(ha->pdev);
2671
2672         set_user_nice(current, -20);
2673
2674         while (!kthread_should_stop()) {
2675                 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2676
2677                 set_current_state(TASK_INTERRUPTIBLE);
2678                 schedule();
2679                 __set_current_state(TASK_RUNNING);
2680
2681                 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2682
2683                 /* Initialization not yet finished. Don't do anything yet. */
2684                 if (!base_vha->flags.init_done)
2685                         continue;
2686
2687                 DEBUG3(printk("scsi(%ld): DPC handler\n", base_vha->host_no));
2688
2689                 ha->dpc_active = 1;
2690
2691                 if (ha->flags.mbox_busy) {
2692                         ha->dpc_active = 0;
2693                         continue;
2694                 }
2695
2696                 qla2x00_do_work(base_vha);
2697
2698                 if (test_and_clear_bit(ISP_ABORT_NEEDED,
2699                                                 &base_vha->dpc_flags)) {
2700
2701                         DEBUG(printk("scsi(%ld): dpc: sched "
2702                             "qla2x00_abort_isp ha = %p\n",
2703                             base_vha->host_no, ha));
2704                         if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2705                             &base_vha->dpc_flags))) {
2706
2707                                 if (qla2x00_abort_isp(base_vha)) {
2708                                         /* failed. retry later */
2709                                         set_bit(ISP_ABORT_NEEDED,
2710                                             &base_vha->dpc_flags);
2711                                 }
2712                                 clear_bit(ABORT_ISP_ACTIVE,
2713                                                 &base_vha->dpc_flags);
2714                         }
2715
2716                         DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2717                             base_vha->host_no));
2718                 }
2719
2720                 if (test_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags)) {
2721                         qla2x00_update_fcports(base_vha);
2722                         clear_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
2723                 }
2724
2725                 if (test_and_clear_bit(RESET_MARKER_NEEDED,
2726                                                         &base_vha->dpc_flags) &&
2727                     (!(test_and_set_bit(RESET_ACTIVE, &base_vha->dpc_flags)))) {
2728
2729                         DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2730                             base_vha->host_no));
2731
2732                         qla2x00_rst_aen(base_vha);
2733                         clear_bit(RESET_ACTIVE, &base_vha->dpc_flags);
2734                 }
2735
2736                 /* Retry each device up to login retry count */
2737                 if ((test_and_clear_bit(RELOGIN_NEEDED,
2738                                                 &base_vha->dpc_flags)) &&
2739                     !test_bit(LOOP_RESYNC_NEEDED, &base_vha->dpc_flags) &&
2740                     atomic_read(&base_vha->loop_state) != LOOP_DOWN) {
2741
2742                         DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2743                                         base_vha->host_no));
2744                         qla2x00_relogin(base_vha);
2745
2746                         DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2747                             base_vha->host_no));
2748                 }
2749
2750                 if (test_and_clear_bit(LOOP_RESYNC_NEEDED,
2751                                                         &base_vha->dpc_flags)) {
2752
2753                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2754                                 base_vha->host_no));
2755
2756                         if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2757                             &base_vha->dpc_flags))) {
2758
2759                                 rval = qla2x00_loop_resync(base_vha);
2760
2761                                 clear_bit(LOOP_RESYNC_ACTIVE,
2762                                                 &base_vha->dpc_flags);
2763                         }
2764
2765                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2766                             base_vha->host_no));
2767                 }
2768
2769                 if (test_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags) &&
2770                     atomic_read(&base_vha->loop_state) == LOOP_READY) {
2771                         clear_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags);
2772                         qla2xxx_flash_npiv_conf(base_vha);
2773                 }
2774
2775                 if (!ha->interrupts_on)
2776                         ha->isp_ops->enable_intrs(ha);
2777
2778                 if (test_and_clear_bit(BEACON_BLINK_NEEDED,
2779                                         &base_vha->dpc_flags))
2780                         ha->isp_ops->beacon_blink(base_vha);
2781
2782                 qla2x00_do_dpc_all_vps(base_vha);
2783
2784                 ha->dpc_active = 0;
2785         } /* End of while(1) */
2786
2787         DEBUG(printk("scsi(%ld): DPC handler exiting\n", base_vha->host_no));
2788
2789         /*
2790          * Make sure that nobody tries to wake us up again.
2791          */
2792         ha->dpc_active = 0;
2793
2794         return 0;
2795 }
2796
2797 void
2798 qla2xxx_wake_dpc(struct scsi_qla_host *vha)
2799 {
2800         struct qla_hw_data *ha = vha->hw;
2801         struct task_struct *t = ha->dpc_thread;
2802
2803         if (!test_bit(UNLOADING, &vha->dpc_flags) && t)
2804                 wake_up_process(t);
2805 }
2806
2807 /*
2808 *  qla2x00_rst_aen
2809 *      Processes asynchronous reset.
2810 *
2811 * Input:
2812 *      ha  = adapter block pointer.
2813 */
2814 static void
2815 qla2x00_rst_aen(scsi_qla_host_t *vha)
2816 {
2817         if (vha->flags.online && !vha->flags.reset_active &&
2818             !atomic_read(&vha->loop_down_timer) &&
2819             !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) {
2820                 do {
2821                         clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
2822
2823                         /*
2824                          * Issue marker command only when we are going to start
2825                          * the I/O.
2826                          */
2827                         vha->marker_needed = 1;
2828                 } while (!atomic_read(&vha->loop_down_timer) &&
2829                     (test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags)));
2830         }
2831 }
2832
2833 static void
2834 qla2x00_sp_free_dma(srb_t *sp)
2835 {
2836         struct scsi_cmnd *cmd = sp->cmd;
2837
2838         if (sp->flags & SRB_DMA_VALID) {
2839                 scsi_dma_unmap(cmd);
2840                 sp->flags &= ~SRB_DMA_VALID;
2841         }
2842         CMD_SP(cmd) = NULL;
2843 }
2844
2845 void
2846 qla2x00_sp_compl(struct qla_hw_data *ha, srb_t *sp)
2847 {
2848         struct scsi_cmnd *cmd = sp->cmd;
2849
2850         qla2x00_sp_free_dma(sp);
2851
2852         mempool_free(sp, ha->srb_mempool);
2853
2854         cmd->scsi_done(cmd);
2855 }
2856
2857 /**************************************************************************
2858 *   qla2x00_timer
2859 *
2860 * Description:
2861 *   One second timer
2862 *
2863 * Context: Interrupt
2864 ***************************************************************************/
2865 void
2866 qla2x00_timer(scsi_qla_host_t *vha)
2867 {
2868         unsigned long   cpu_flags = 0;
2869         fc_port_t       *fcport;
2870         int             start_dpc = 0;
2871         int             index;
2872         srb_t           *sp;
2873         int             t;
2874         struct qla_hw_data *ha = vha->hw;
2875         struct req_que *req;
2876         /*
2877          * Ports - Port down timer.
2878          *
2879          * Whenever, a port is in the LOST state we start decrementing its port
2880          * down timer every second until it reaches zero. Once  it reaches zero
2881          * the port it marked DEAD.
2882          */
2883         t = 0;
2884         list_for_each_entry(fcport, &vha->vp_fcports, list) {
2885                 if (fcport->port_type != FCT_TARGET)
2886                         continue;
2887
2888                 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2889
2890                         if (atomic_read(&fcport->port_down_timer) == 0)
2891                                 continue;
2892
2893                         if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
2894                                 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
2895
2896                         DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
2897                             "%d remaining\n",
2898                             vha->host_no,
2899                             t, atomic_read(&fcport->port_down_timer)));
2900                 }
2901                 t++;
2902         } /* End of for fcport  */
2903
2904
2905         /* Loop down handler. */
2906         if (atomic_read(&vha->loop_down_timer) > 0 &&
2907             !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
2908                 && vha->flags.online) {
2909
2910                 if (atomic_read(&vha->loop_down_timer) ==
2911                     vha->loop_down_abort_time) {
2912
2913                         DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2914                             "queues before time expire\n",
2915                             vha->host_no));
2916
2917                         if (!IS_QLA2100(ha) && vha->link_down_timeout)
2918                                 atomic_set(&vha->loop_state, LOOP_DEAD);
2919
2920                         /* Schedule an ISP abort to return any tape commands. */
2921                         /* NPIV - scan physical port only */
2922                         if (!vha->vp_idx) {
2923                                 spin_lock_irqsave(&ha->hardware_lock,
2924                                     cpu_flags);
2925                                 req = ha->req_q_map[0];
2926                                 for (index = 1;
2927                                     index < MAX_OUTSTANDING_COMMANDS;
2928                                     index++) {
2929                                         fc_port_t *sfcp;
2930
2931                                         sp = req->outstanding_cmds[index];
2932                                         if (!sp)
2933                                                 continue;
2934                                         sfcp = sp->fcport;
2935                                         if (!(sfcp->flags & FCF_TAPE_PRESENT))
2936                                                 continue;
2937
2938                                         set_bit(ISP_ABORT_NEEDED,
2939                                                         &vha->dpc_flags);
2940                                         break;
2941                                 }
2942                                 spin_unlock_irqrestore(&ha->hardware_lock,
2943                                                                 cpu_flags);
2944                         }
2945                         start_dpc++;
2946                 }
2947
2948                 /* if the loop has been down for 4 minutes, reinit adapter */
2949                 if (atomic_dec_and_test(&vha->loop_down_timer) != 0) {
2950                         if (!(vha->device_flags & DFLG_NO_CABLE) &&
2951                             !vha->vp_idx) {
2952                                 DEBUG(printk("scsi(%ld): Loop down - "
2953                                     "aborting ISP.\n",
2954                                     vha->host_no));
2955                                 qla_printk(KERN_WARNING, ha,
2956                                     "Loop down - aborting ISP.\n");
2957
2958                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2959                         }
2960                 }
2961                 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
2962                     vha->host_no,
2963                     atomic_read(&vha->loop_down_timer)));
2964         }
2965
2966         /* Check if beacon LED needs to be blinked */
2967         if (ha->beacon_blink_led == 1) {
2968                 set_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags);
2969                 start_dpc++;
2970         }
2971
2972         /* Process any deferred work. */
2973         if (!list_empty(&vha->work_list))
2974                 start_dpc++;
2975
2976         /* Schedule the DPC routine if needed */
2977         if ((test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
2978             test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) ||
2979             test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags) ||
2980             start_dpc ||
2981             test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) ||
2982             test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags) ||
2983             test_bit(VP_DPC_NEEDED, &vha->dpc_flags) ||
2984             test_bit(RELOGIN_NEEDED, &vha->dpc_flags)))
2985                 qla2xxx_wake_dpc(vha);
2986
2987         qla2x00_restart_timer(vha, WATCH_INTERVAL);
2988 }
2989
2990 /* Firmware interface routines. */
2991
2992 #define FW_BLOBS        7
2993 #define FW_ISP21XX      0
2994 #define FW_ISP22XX      1
2995 #define FW_ISP2300      2
2996 #define FW_ISP2322      3
2997 #define FW_ISP24XX      4
2998 #define FW_ISP25XX      5
2999 #define FW_ISP81XX      6
3000
3001 #define FW_FILE_ISP21XX "ql2100_fw.bin"
3002 #define FW_FILE_ISP22XX "ql2200_fw.bin"
3003 #define FW_FILE_ISP2300 "ql2300_fw.bin"
3004 #define FW_FILE_ISP2322 "ql2322_fw.bin"
3005 #define FW_FILE_ISP24XX "ql2400_fw.bin"
3006 #define FW_FILE_ISP25XX "ql2500_fw.bin"
3007 #define FW_FILE_ISP81XX "ql8100_fw.bin"
3008
3009 static DEFINE_MUTEX(qla_fw_lock);
3010
3011 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
3012         { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
3013         { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
3014         { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
3015         { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
3016         { .name = FW_FILE_ISP24XX, },
3017         { .name = FW_FILE_ISP25XX, },
3018         { .name = FW_FILE_ISP81XX, },
3019 };
3020
3021 struct fw_blob *
3022 qla2x00_request_firmware(scsi_qla_host_t *vha)
3023 {
3024         struct qla_hw_data *ha = vha->hw;
3025         struct fw_blob *blob;
3026
3027         blob = NULL;
3028         if (IS_QLA2100(ha)) {
3029                 blob = &qla_fw_blobs[FW_ISP21XX];
3030         } else if (IS_QLA2200(ha)) {
3031                 blob = &qla_fw_blobs[FW_ISP22XX];
3032         } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
3033                 blob = &qla_fw_blobs[FW_ISP2300];
3034         } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
3035                 blob = &qla_fw_blobs[FW_ISP2322];
3036         } else if (IS_QLA24XX_TYPE(ha)) {
3037                 blob = &qla_fw_blobs[FW_ISP24XX];
3038         } else if (IS_QLA25XX(ha)) {
3039                 blob = &qla_fw_blobs[FW_ISP25XX];
3040         } else if (IS_QLA81XX(ha)) {
3041                 blob = &qla_fw_blobs[FW_ISP81XX];
3042         }
3043
3044         mutex_lock(&qla_fw_lock);
3045         if (blob->fw)
3046                 goto out;
3047
3048         if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
3049                 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
3050                     "(%s).\n", vha->host_no, blob->name));
3051                 blob->fw = NULL;
3052                 blob = NULL;
3053                 goto out;
3054         }
3055
3056 out:
3057         mutex_unlock(&qla_fw_lock);
3058         return blob;
3059 }
3060
3061 static void
3062 qla2x00_release_firmware(void)
3063 {
3064         int idx;
3065
3066         mutex_lock(&qla_fw_lock);
3067         for (idx = 0; idx < FW_BLOBS; idx++)
3068                 if (qla_fw_blobs[idx].fw)
3069                         release_firmware(qla_fw_blobs[idx].fw);
3070         mutex_unlock(&qla_fw_lock);
3071 }
3072
3073 static pci_ers_result_t
3074 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
3075 {
3076         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3077
3078         switch (state) {
3079         case pci_channel_io_normal:
3080                 return PCI_ERS_RESULT_CAN_RECOVER;
3081         case pci_channel_io_frozen:
3082                 pci_disable_device(pdev);
3083                 return PCI_ERS_RESULT_NEED_RESET;
3084         case pci_channel_io_perm_failure:
3085                 qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
3086                 return PCI_ERS_RESULT_DISCONNECT;
3087         }
3088         return PCI_ERS_RESULT_NEED_RESET;
3089 }
3090
3091 static pci_ers_result_t
3092 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
3093 {
3094         int risc_paused = 0;
3095         uint32_t stat;
3096         unsigned long flags;
3097         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3098         struct qla_hw_data *ha = base_vha->hw;
3099         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3100         struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
3101
3102         spin_lock_irqsave(&ha->hardware_lock, flags);
3103         if (IS_QLA2100(ha) || IS_QLA2200(ha)){
3104                 stat = RD_REG_DWORD(&reg->hccr);
3105                 if (stat & HCCR_RISC_PAUSE)
3106                         risc_paused = 1;
3107         } else if (IS_QLA23XX(ha)) {
3108                 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
3109                 if (stat & HSR_RISC_PAUSED)
3110                         risc_paused = 1;
3111         } else if (IS_FWI2_CAPABLE(ha)) {
3112                 stat = RD_REG_DWORD(&reg24->host_status);
3113                 if (stat & HSRX_RISC_PAUSED)
3114                         risc_paused = 1;
3115         }
3116         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3117
3118         if (risc_paused) {
3119                 qla_printk(KERN_INFO, ha, "RISC paused -- mmio_enabled, "
3120                     "Dumping firmware!\n");
3121                 ha->isp_ops->fw_dump(base_vha, 0);
3122
3123                 return PCI_ERS_RESULT_NEED_RESET;
3124         } else
3125                 return PCI_ERS_RESULT_RECOVERED;
3126 }
3127
3128 static pci_ers_result_t
3129 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
3130 {
3131         pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
3132         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3133         struct qla_hw_data *ha = base_vha->hw;
3134         int rc;
3135
3136         if (ha->mem_only)
3137                 rc = pci_enable_device_mem(pdev);
3138         else
3139                 rc = pci_enable_device(pdev);
3140
3141         if (rc) {
3142                 qla_printk(KERN_WARNING, ha,
3143                     "Can't re-enable PCI device after reset.\n");
3144
3145                 return ret;
3146         }
3147         pci_set_master(pdev);
3148
3149         if (ha->isp_ops->pci_config(base_vha))
3150                 return ret;
3151
3152         set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
3153         if (qla2x00_abort_isp(base_vha) == QLA_SUCCESS)
3154                 ret =  PCI_ERS_RESULT_RECOVERED;
3155         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
3156
3157         return ret;
3158 }
3159
3160 static void
3161 qla2xxx_pci_resume(struct pci_dev *pdev)
3162 {
3163         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3164         struct qla_hw_data *ha = base_vha->hw;
3165         int ret;
3166
3167         ret = qla2x00_wait_for_hba_online(base_vha);
3168         if (ret != QLA_SUCCESS) {
3169                 qla_printk(KERN_ERR, ha,
3170                     "the device failed to resume I/O "
3171                     "from slot/link_reset");
3172         }
3173         pci_cleanup_aer_uncorrect_error_status(pdev);
3174 }
3175
3176 static struct pci_error_handlers qla2xxx_err_handler = {
3177         .error_detected = qla2xxx_pci_error_detected,
3178         .mmio_enabled = qla2xxx_pci_mmio_enabled,
3179         .slot_reset = qla2xxx_pci_slot_reset,
3180         .resume = qla2xxx_pci_resume,
3181 };
3182
3183 static struct pci_device_id qla2xxx_pci_tbl[] = {
3184         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
3185         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
3186         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
3187         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
3188         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
3189         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
3190         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
3191         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
3192         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
3193         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) },
3194         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
3195         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
3196         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
3197         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8001) },
3198         { 0 },
3199 };
3200 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
3201
3202 static struct pci_driver qla2xxx_pci_driver = {
3203         .name           = QLA2XXX_DRIVER_NAME,
3204         .driver         = {
3205                 .owner          = THIS_MODULE,
3206         },
3207         .id_table       = qla2xxx_pci_tbl,
3208         .probe          = qla2x00_probe_one,
3209         .remove         = qla2x00_remove_one,
3210         .err_handler    = &qla2xxx_err_handler,
3211 };
3212
3213 /**
3214  * qla2x00_module_init - Module initialization.
3215  **/
3216 static int __init
3217 qla2x00_module_init(void)
3218 {
3219         int ret = 0;
3220
3221         /* Allocate cache for SRBs. */
3222         srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
3223             SLAB_HWCACHE_ALIGN, NULL);
3224         if (srb_cachep == NULL) {
3225                 printk(KERN_ERR
3226                     "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
3227                 return -ENOMEM;
3228         }
3229
3230         /* Derive version string. */
3231         strcpy(qla2x00_version_str, QLA2XXX_VERSION);
3232         if (ql2xextended_error_logging)
3233                 strcat(qla2x00_version_str, "-debug");
3234
3235         qla2xxx_transport_template =
3236             fc_attach_transport(&qla2xxx_transport_functions);
3237         if (!qla2xxx_transport_template) {
3238                 kmem_cache_destroy(srb_cachep);
3239                 return -ENODEV;
3240         }
3241         qla2xxx_transport_vport_template =
3242             fc_attach_transport(&qla2xxx_transport_vport_functions);
3243         if (!qla2xxx_transport_vport_template) {
3244                 kmem_cache_destroy(srb_cachep);
3245                 fc_release_transport(qla2xxx_transport_template);
3246                 return -ENODEV;
3247         }
3248
3249         printk(KERN_INFO "QLogic Fibre Channel HBA Driver: %s\n",
3250             qla2x00_version_str);
3251         ret = pci_register_driver(&qla2xxx_pci_driver);
3252         if (ret) {
3253                 kmem_cache_destroy(srb_cachep);
3254                 fc_release_transport(qla2xxx_transport_template);
3255                 fc_release_transport(qla2xxx_transport_vport_template);
3256         }
3257         return ret;
3258 }
3259
3260 /**
3261  * qla2x00_module_exit - Module cleanup.
3262  **/
3263 static void __exit
3264 qla2x00_module_exit(void)
3265 {
3266         pci_unregister_driver(&qla2xxx_pci_driver);
3267         qla2x00_release_firmware();
3268         kmem_cache_destroy(srb_cachep);
3269         fc_release_transport(qla2xxx_transport_template);
3270         fc_release_transport(qla2xxx_transport_vport_template);
3271 }
3272
3273 module_init(qla2x00_module_init);
3274 module_exit(qla2x00_module_exit);
3275
3276 MODULE_AUTHOR("QLogic Corporation");
3277 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
3278 MODULE_LICENSE("GPL");
3279 MODULE_VERSION(QLA2XXX_VERSION);
3280 MODULE_FIRMWARE(FW_FILE_ISP21XX);
3281 MODULE_FIRMWARE(FW_FILE_ISP22XX);
3282 MODULE_FIRMWARE(FW_FILE_ISP2300);
3283 MODULE_FIRMWARE(FW_FILE_ISP2322);
3284 MODULE_FIRMWARE(FW_FILE_ISP24XX);
3285 MODULE_FIRMWARE(FW_FILE_ISP25XX);
3286 MODULE_FIRMWARE(FW_FILE_ISP81XX);