git.oblomov.eu Git - linux-2.6/blob - drivers/scsi/qla2xxx/qla_os.c

   1 /*
   2  * QLogic Fibre Channel HBA Driver
   3  * Copyright (c)  2003-2008 QLogic Corporation
   4  *
   5  * See LICENSE.qla2xxx for copyright and licensing details.
   6  */
   7 #include "qla_def.h"
   8
   9 #include <linux/moduleparam.h>
  10 #include <linux/vmalloc.h>
  11 #include <linux/delay.h>
  12 #include <linux/kthread.h>
  13 #include <linux/mutex.h>
  14
  15 #include <scsi/scsi_tcq.h>
  16 #include <scsi/scsicam.h>
  17 #include <scsi/scsi_transport.h>
  18 #include <scsi/scsi_transport_fc.h>
  19
  20 /*
  21  * Driver version
  22  */
  23 char qla2x00_version_str[40];
  24
  25 /*
  26  * SRB allocation cache
  27  */
  28 static struct kmem_cache *srb_cachep;
  29
  30 int ql2xlogintimeout = 20;
  31 module_param(ql2xlogintimeout, int, S_IRUGO|S_IRUSR);
  32 MODULE_PARM_DESC(ql2xlogintimeout,
  33                 "Login timeout value in seconds.");
  34
  35 int qlport_down_retry;
  36 module_param(qlport_down_retry, int, S_IRUGO|S_IRUSR);
  37 MODULE_PARM_DESC(qlport_down_retry,
  38                 "Maximum number of command retries to a port that returns "
  39                 "a PORT-DOWN status.");
  40
  41 int ql2xplogiabsentdevice;
  42 module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
  43 MODULE_PARM_DESC(ql2xplogiabsentdevice,
  44                 "Option to enable PLOGI to devices that are not present after "
  45                 "a Fabric scan.  This is needed for several broken switches. "
  46                 "Default is 0 - no PLOGI. 1 - perfom PLOGI.");
  47
  48 int ql2xloginretrycount = 0;
  49 module_param(ql2xloginretrycount, int, S_IRUGO|S_IRUSR);
  50 MODULE_PARM_DESC(ql2xloginretrycount,
  51                 "Specify an alternate value for the NVRAM login retry count.");
  52
  53 int ql2xallocfwdump = 1;
  54 module_param(ql2xallocfwdump, int, S_IRUGO|S_IRUSR);
  55 MODULE_PARM_DESC(ql2xallocfwdump,
  56                 "Option to enable allocation of memory for a firmware dump "
  57                 "during HBA initialization.  Memory allocation requirements "
  58                 "vary by ISP type.  Default is 1 - allocate memory.");
  59
  60 int ql2xextended_error_logging;
  61 module_param(ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
  62 MODULE_PARM_DESC(ql2xextended_error_logging,
  63                 "Option to enable extended error logging, "
  64                 "Default is 0 - no logging. 1 - log errors.");
  65
  66 static void qla2x00_free_device(scsi_qla_host_t *);
  67
  68 static void qla2x00_config_dma_addressing(scsi_qla_host_t *ha);
  69
  70 int ql2xfdmienable=1;
  71 module_param(ql2xfdmienable, int, S_IRUGO|S_IRUSR);
  72 MODULE_PARM_DESC(ql2xfdmienable,
  73                 "Enables FDMI registratons "
  74                 "Default is 0 - no FDMI. 1 - perfom FDMI.");
  75
  76 #define MAX_Q_DEPTH    32
  77 static int ql2xmaxqdepth = MAX_Q_DEPTH;
  78 module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
  79 MODULE_PARM_DESC(ql2xmaxqdepth,
  80                 "Maximum queue depth to report for target devices.");
  81
  82 int ql2xqfullrampup = 120;
  83 module_param(ql2xqfullrampup, int, S_IRUGO|S_IWUSR);
  84 MODULE_PARM_DESC(ql2xqfullrampup,
  85                 "Number of seconds to wait to begin to ramp-up the queue "
  86                 "depth for a device after a queue-full condition has been "
  87                 "detected.  Default is 120 seconds.");
  88
  89 int ql2xiidmaenable=1;
  90 module_param(ql2xiidmaenable, int, S_IRUGO|S_IRUSR);
  91 MODULE_PARM_DESC(ql2xiidmaenable,
  92                 "Enables iIDMA settings "
  93                 "Default is 1 - perform iIDMA. 0 - no iIDMA.");
  94
  95 int ql2xmaxqueues = 1;
  96 module_param(ql2xmaxqueues, int, S_IRUGO|S_IRUSR);
  97 MODULE_PARM_DESC(ql2xmaxqueues,
  98                 "Enables MQ settings "
  99                 "Default is 1 for single queue. Set it to number \
 100                         of queues in MQ mode.");
 101 /*
 102  * SCSI host template entry points
 103  */
 104 static int qla2xxx_slave_configure(struct scsi_device * device);
 105 static int qla2xxx_slave_alloc(struct scsi_device *);
 106 static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
 107 static void qla2xxx_scan_start(struct Scsi_Host *);
 108 static void qla2xxx_slave_destroy(struct scsi_device *);
 109 static int qla2x00_queuecommand(struct scsi_cmnd *cmd,
 110                 void (*fn)(struct scsi_cmnd *));
 111 static int qla24xx_queuecommand(struct scsi_cmnd *cmd,
 112                 void (*fn)(struct scsi_cmnd *));
 113 static int qla2xxx_eh_abort(struct scsi_cmnd *);
 114 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
 115 static int qla2xxx_eh_target_reset(struct scsi_cmnd *);
 116 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
 117 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
 118
 119 static int qla2x00_change_queue_depth(struct scsi_device *, int);
 120 static int qla2x00_change_queue_type(struct scsi_device *, int);
 121
 122 static struct scsi_host_template qla2x00_driver_template = {
 123         .module                 = THIS_MODULE,
 124         .name                   = QLA2XXX_DRIVER_NAME,
 125         .queuecommand           = qla2x00_queuecommand,
 126
 127         .eh_abort_handler       = qla2xxx_eh_abort,
 128         .eh_device_reset_handler = qla2xxx_eh_device_reset,
 129         .eh_target_reset_handler = qla2xxx_eh_target_reset,
 130         .eh_bus_reset_handler   = qla2xxx_eh_bus_reset,
 131         .eh_host_reset_handler  = qla2xxx_eh_host_reset,
 132
 133         .slave_configure        = qla2xxx_slave_configure,
 134
 135         .slave_alloc            = qla2xxx_slave_alloc,
 136         .slave_destroy          = qla2xxx_slave_destroy,
 137         .scan_finished          = qla2xxx_scan_finished,
 138         .scan_start             = qla2xxx_scan_start,
 139         .change_queue_depth     = qla2x00_change_queue_depth,
 140         .change_queue_type      = qla2x00_change_queue_type,
 141         .this_id                = -1,
 142         .cmd_per_lun            = 3,
 143         .use_clustering         = ENABLE_CLUSTERING,
 144         .sg_tablesize           = SG_ALL,
 145
 146         /*
 147          * The RISC allows for each command to transfer (2^32-1) bytes of data,
 148          * which equates to 0x800000 sectors.
 149          */
 150         .max_sectors            = 0xFFFF,
 151         .shost_attrs            = qla2x00_host_attrs,
 152 };
 153
 154 struct scsi_host_template qla24xx_driver_template = {
 155         .module                 = THIS_MODULE,
 156         .name                   = QLA2XXX_DRIVER_NAME,
 157         .queuecommand           = qla24xx_queuecommand,
 158
 159         .eh_abort_handler       = qla2xxx_eh_abort,
 160         .eh_device_reset_handler = qla2xxx_eh_device_reset,
 161         .eh_target_reset_handler = qla2xxx_eh_target_reset,
 162         .eh_bus_reset_handler   = qla2xxx_eh_bus_reset,
 163         .eh_host_reset_handler  = qla2xxx_eh_host_reset,
 164
 165         .slave_configure        = qla2xxx_slave_configure,
 166
 167         .slave_alloc            = qla2xxx_slave_alloc,
 168         .slave_destroy          = qla2xxx_slave_destroy,
 169         .scan_finished          = qla2xxx_scan_finished,
 170         .scan_start             = qla2xxx_scan_start,
 171         .change_queue_depth     = qla2x00_change_queue_depth,
 172         .change_queue_type      = qla2x00_change_queue_type,
 173         .this_id                = -1,
 174         .cmd_per_lun            = 3,
 175         .use_clustering         = ENABLE_CLUSTERING,
 176         .sg_tablesize           = SG_ALL,
 177
 178         .max_sectors            = 0xFFFF,
 179         .shost_attrs            = qla2x00_host_attrs,
 180 };
 181
 182 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
 183 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
 184
 185 /* TODO Convert to inlines
 186  *
 187  * Timer routines
 188  */
 189
 190 __inline__ void
 191 qla2x00_start_timer(scsi_qla_host_t *vha, void *func, unsigned long interval)
 192 {
 193         init_timer(&vha->timer);
 194         vha->timer.expires = jiffies + interval * HZ;
 195         vha->timer.data = (unsigned long)vha;
 196         vha->timer.function = (void (*)(unsigned long))func;
 197         add_timer(&vha->timer);
 198         vha->timer_active = 1;
 199 }
 200
 201 static inline void
 202 qla2x00_restart_timer(scsi_qla_host_t *vha, unsigned long interval)
 203 {
 204         mod_timer(&vha->timer, jiffies + interval * HZ);
 205 }
 206
 207 static __inline__ void
 208 qla2x00_stop_timer(scsi_qla_host_t *vha)
 209 {
 210         del_timer_sync(&vha->timer);
 211         vha->timer_active = 0;
 212 }
 213
 214 static int qla2x00_do_dpc(void *data);
 215
 216 static void qla2x00_rst_aen(scsi_qla_host_t *);
 217
 218 static int qla2x00_mem_alloc(struct qla_hw_data *, uint16_t, uint16_t,
 219         struct req_que **, struct rsp_que **);
 220 static void qla2x00_mem_free(struct qla_hw_data *);
 221 static void qla2x00_sp_free_dma(srb_t *);
 222
 223 /* -------------------------------------------------------------------------- */
 224 static int qla2x00_alloc_queues(struct qla_hw_data *ha)
 225 {
 226         ha->req_q_map = kzalloc(sizeof(struct req_que *) * ha->max_queues,
 227                                 GFP_KERNEL);
 228         if (!ha->req_q_map) {
 229                 qla_printk(KERN_WARNING, ha,
 230                         "Unable to allocate memory for request queue ptrs\n");
 231                 goto fail_req_map;
 232         }
 233
 234         ha->rsp_q_map = kzalloc(sizeof(struct rsp_que *) * ha->max_queues,
 235                                 GFP_KERNEL);
 236         if (!ha->rsp_q_map) {
 237                 qla_printk(KERN_WARNING, ha,
 238                         "Unable to allocate memory for response queue ptrs\n");
 239                 goto fail_rsp_map;
 240         }
 241         set_bit(0, ha->rsp_qid_map);
 242         set_bit(0, ha->req_qid_map);
 243         return 1;
 244
 245 fail_rsp_map:
 246         kfree(ha->req_q_map);
 247         ha->req_q_map = NULL;
 248 fail_req_map:
 249         return -ENOMEM;
 250 }
 251
 252 static void qla2x00_free_que(struct qla_hw_data *ha, struct req_que *req,
 253         struct rsp_que *rsp)
 254 {
 255         if (rsp && rsp->ring)
 256                 dma_free_coherent(&ha->pdev->dev,
 257                 (rsp->length + 1) * sizeof(response_t),
 258                 rsp->ring, rsp->dma);
 259
 260         kfree(rsp);
 261         rsp = NULL;
 262         if (req && req->ring)
 263                 dma_free_coherent(&ha->pdev->dev,
 264                 (req->length + 1) * sizeof(request_t),
 265                 req->ring, req->dma);
 266
 267         kfree(req);
 268         req = NULL;
 269 }
 270
 271 static void qla2x00_free_queues(struct qla_hw_data *ha)
 272 {
 273         struct req_que *req;
 274         struct rsp_que *rsp;
 275         int cnt;
 276
 277         for (cnt = 0; cnt < ha->max_queues; cnt++) {
 278                 rsp = ha->rsp_q_map[cnt];
 279                 req = ha->req_q_map[cnt];
 280                 qla2x00_free_que(ha, req, rsp);
 281         }
 282         kfree(ha->rsp_q_map);
 283         ha->rsp_q_map = NULL;
 284
 285         kfree(ha->req_q_map);
 286         ha->req_q_map = NULL;
 287 }
 288
 289 static char *
 290 qla2x00_pci_info_str(struct scsi_qla_host *vha, char *str)
 291 {
 292         struct qla_hw_data *ha = vha->hw;
 293         static char *pci_bus_modes[] = {
 294                 "33", "66", "100", "133",
 295         };
 296         uint16_t pci_bus;
 297
 298         strcpy(str, "PCI");
 299         pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
 300         if (pci_bus) {
 301                 strcat(str, "-X (");
 302                 strcat(str, pci_bus_modes[pci_bus]);
 303         } else {
 304                 pci_bus = (ha->pci_attr & BIT_8) >> 8;
 305                 strcat(str, " (");
 306                 strcat(str, pci_bus_modes[pci_bus]);
 307         }
 308         strcat(str, " MHz)");
 309
 310         return (str);
 311 }
 312
 313 static char *
 314 qla24xx_pci_info_str(struct scsi_qla_host *vha, char *str)
 315 {
 316         static char *pci_bus_modes[] = { "33", "66", "100", "133", };
 317         struct qla_hw_data *ha = vha->hw;
 318         uint32_t pci_bus;
 319         int pcie_reg;
 320
 321         pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
 322         if (pcie_reg) {
 323                 char lwstr[6];
 324                 uint16_t pcie_lstat, lspeed, lwidth;
 325
 326                 pcie_reg += 0x12;
 327                 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
 328                 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
 329                 lwidth = (pcie_lstat &
 330                     (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
 331
 332                 strcpy(str, "PCIe (");
 333                 if (lspeed == 1)
 334                         strcat(str, "2.5GT/s ");
 335                 else if (lspeed == 2)
 336                         strcat(str, "5.0GT/s ");
 337                 else
 338                         strcat(str, "<unknown> ");
 339                 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
 340                 strcat(str, lwstr);
 341
 342                 return str;
 343         }
 344
 345         strcpy(str, "PCI");
 346         pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
 347         if (pci_bus == 0 || pci_bus == 8) {
 348                 strcat(str, " (");
 349                 strcat(str, pci_bus_modes[pci_bus >> 3]);
 350         } else {
 351                 strcat(str, "-X ");
 352                 if (pci_bus & BIT_2)
 353                         strcat(str, "Mode 2");
 354                 else
 355                         strcat(str, "Mode 1");
 356                 strcat(str, " (");
 357                 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
 358         }
 359         strcat(str, " MHz)");
 360
 361         return str;
 362 }
 363
 364 static char *
 365 qla2x00_fw_version_str(struct scsi_qla_host *vha, char *str)
 366 {
 367         char un_str[10];
 368         struct qla_hw_data *ha = vha->hw;
 369
 370         sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
 371             ha->fw_minor_version,
 372             ha->fw_subminor_version);
 373
 374         if (ha->fw_attributes & BIT_9) {
 375                 strcat(str, "FLX");
 376                 return (str);
 377         }
 378
 379         switch (ha->fw_attributes & 0xFF) {
 380         case 0x7:
 381                 strcat(str, "EF");
 382                 break;
 383         case 0x17:
 384                 strcat(str, "TP");
 385                 break;
 386         case 0x37:
 387                 strcat(str, "IP");
 388                 break;
 389         case 0x77:
 390                 strcat(str, "VI");
 391                 break;
 392         default:
 393                 sprintf(un_str, "(%x)", ha->fw_attributes);
 394                 strcat(str, un_str);
 395                 break;
 396         }
 397         if (ha->fw_attributes & 0x100)
 398                 strcat(str, "X");
 399
 400         return (str);
 401 }
 402
 403 static char *
 404 qla24xx_fw_version_str(struct scsi_qla_host *vha, char *str)
 405 {
 406         struct qla_hw_data *ha = vha->hw;
 407
 408         sprintf(str, "%d.%02d.%02d (%x)", ha->fw_major_version,
 409             ha->fw_minor_version, ha->fw_subminor_version, ha->fw_attributes);
 410         return str;
 411 }
 412
 413 static inline srb_t *
 414 qla2x00_get_new_sp(scsi_qla_host_t *vha, fc_port_t *fcport,
 415     struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 416 {
 417         srb_t *sp;
 418         struct qla_hw_data *ha = vha->hw;
 419
 420         sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
 421         if (!sp)
 422                 return sp;
 423
 424         sp->fcport = fcport;
 425         sp->cmd = cmd;
 426         sp->que = ha->req_q_map[0];
 427         sp->flags = 0;
 428         CMD_SP(cmd) = (void *)sp;
 429         cmd->scsi_done = done;
 430
 431         return sp;
 432 }
 433
 434 static int
 435 qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 436 {
 437         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 438         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 439         struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
 440         struct qla_hw_data *ha = vha->hw;
 441         srb_t *sp;
 442         int rval;
 443
 444         if (unlikely(pci_channel_offline(ha->pdev))) {
 445                 cmd->result = DID_REQUEUE << 16;
 446                 goto qc_fail_command;
 447         }
 448
 449         rval = fc_remote_port_chkready(rport);
 450         if (rval) {
 451                 cmd->result = rval;
 452                 goto qc_fail_command;
 453         }
 454
 455         /* Close window on fcport/rport state-transitioning. */
 456         if (fcport->drport)
 457                 goto qc_target_busy;
 458
 459         if (atomic_read(&fcport->state) != FCS_ONLINE) {
 460                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
 461                     atomic_read(&vha->loop_state) == LOOP_DEAD) {
 462                         cmd->result = DID_NO_CONNECT << 16;
 463                         goto qc_fail_command;
 464                 }
 465                 goto qc_target_busy;
 466         }
 467
 468         spin_unlock_irq(vha->host->host_lock);
 469
 470         sp = qla2x00_get_new_sp(vha, fcport, cmd, done);
 471         if (!sp)
 472                 goto qc_host_busy_lock;
 473
 474         rval = ha->isp_ops->start_scsi(sp);
 475         if (rval != QLA_SUCCESS)
 476                 goto qc_host_busy_free_sp;
 477
 478         spin_lock_irq(vha->host->host_lock);
 479
 480         return 0;
 481
 482 qc_host_busy_free_sp:
 483         qla2x00_sp_free_dma(sp);
 484         mempool_free(sp, ha->srb_mempool);
 485
 486 qc_host_busy_lock:
 487         spin_lock_irq(vha->host->host_lock);
 488         return SCSI_MLQUEUE_HOST_BUSY;
 489
 490 qc_target_busy:
 491         return SCSI_MLQUEUE_TARGET_BUSY;
 492
 493 qc_fail_command:
 494         done(cmd);
 495
 496         return 0;
 497 }
 498
 499
 500 static int
 501 qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 502 {
 503         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 504         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 505         struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
 506         struct qla_hw_data *ha = vha->hw;
 507         struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
 508         srb_t *sp;
 509         int rval;
 510
 511         if (unlikely(pci_channel_offline(ha->pdev))) {
 512                 cmd->result = DID_REQUEUE << 16;
 513                 goto qc24_fail_command;
 514         }
 515
 516         rval = fc_remote_port_chkready(rport);
 517         if (rval) {
 518                 cmd->result = rval;
 519                 goto qc24_fail_command;
 520         }
 521
 522         /* Close window on fcport/rport state-transitioning. */
 523         if (fcport->drport)
 524                 goto qc24_target_busy;
 525
 526         if (atomic_read(&fcport->state) != FCS_ONLINE) {
 527                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
 528                     atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
 529                         cmd->result = DID_NO_CONNECT << 16;
 530                         goto qc24_fail_command;
 531                 }
 532                 goto qc24_target_busy;
 533         }
 534
 535         spin_unlock_irq(vha->host->host_lock);
 536
 537         sp = qla2x00_get_new_sp(base_vha, fcport, cmd, done);
 538         if (!sp)
 539                 goto qc24_host_busy_lock;
 540
 541         rval = ha->isp_ops->start_scsi(sp);
 542         if (rval != QLA_SUCCESS)
 543                 goto qc24_host_busy_free_sp;
 544
 545         spin_lock_irq(vha->host->host_lock);
 546
 547         return 0;
 548
 549 qc24_host_busy_free_sp:
 550         qla2x00_sp_free_dma(sp);
 551         mempool_free(sp, ha->srb_mempool);
 552
 553 qc24_host_busy_lock:
 554         spin_lock_irq(vha->host->host_lock);
 555         return SCSI_MLQUEUE_HOST_BUSY;
 556
 557 qc24_target_busy:
 558         return SCSI_MLQUEUE_TARGET_BUSY;
 559
 560 qc24_fail_command:
 561         done(cmd);
 562
 563         return 0;
 564 }
 565
 566
 567 /*
 568  * qla2x00_eh_wait_on_command
 569  *    Waits for the command to be returned by the Firmware for some
 570  *    max time.
 571  *
 572  * Input:
 573  *    cmd = Scsi Command to wait on.
 574  *
 575  * Return:
 576  *    Not Found : 0
 577  *    Found : 1
 578  */
 579 static int
 580 qla2x00_eh_wait_on_command(struct scsi_cmnd *cmd)
 581 {
 582 #define ABORT_POLLING_PERIOD    1000
 583 #define ABORT_WAIT_ITER         ((10 * 1000) / (ABORT_POLLING_PERIOD))
 584         unsigned long wait_iter = ABORT_WAIT_ITER;
 585         int ret = QLA_SUCCESS;
 586
 587         while (CMD_SP(cmd)) {
 588                 msleep(ABORT_POLLING_PERIOD);
 589
 590                 if (--wait_iter)
 591                         break;
 592         }
 593         if (CMD_SP(cmd))
 594                 ret = QLA_FUNCTION_FAILED;
 595
 596         return ret;
 597 }
 598
 599 /*
 600  * qla2x00_wait_for_hba_online
 601  *    Wait till the HBA is online after going through
 602  *    <= MAX_RETRIES_OF_ISP_ABORT  or
 603  *    finally HBA is disabled ie marked offline
 604  *
 605  * Input:
 606  *     ha - pointer to host adapter structure
 607  *
 608  * Note:
 609  *    Does context switching-Release SPIN_LOCK
 610  *    (if any) before calling this routine.
 611  *
 612  * Return:
 613  *    Success (Adapter is online) : 0
 614  *    Failed  (Adapter is offline/disabled) : 1
 615  */
 616 int
 617 qla2x00_wait_for_hba_online(scsi_qla_host_t *vha)
 618 {
 619         int             return_status;
 620         unsigned long   wait_online;
 621         struct qla_hw_data *ha = vha->hw;
 622         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 623
 624         wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 625         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
 626             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
 627             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
 628             ha->dpc_active) && time_before(jiffies, wait_online)) {
 629
 630                 msleep(1000);
 631         }
 632         if (base_vha->flags.online)
 633                 return_status = QLA_SUCCESS;
 634         else
 635                 return_status = QLA_FUNCTION_FAILED;
 636
 637         return (return_status);
 638 }
 639
 640 /*
 641  * qla2x00_wait_for_loop_ready
 642  *    Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
 643  *    to be in LOOP_READY state.
 644  * Input:
 645  *     ha - pointer to host adapter structure
 646  *
 647  * Note:
 648  *    Does context switching-Release SPIN_LOCK
 649  *    (if any) before calling this routine.
 650  *
 651  *
 652  * Return:
 653  *    Success (LOOP_READY) : 0
 654  *    Failed  (LOOP_NOT_READY) : 1
 655  */
 656 static inline int
 657 qla2x00_wait_for_loop_ready(scsi_qla_host_t *vha)
 658 {
 659         int      return_status = QLA_SUCCESS;
 660         unsigned long loop_timeout ;
 661         struct qla_hw_data *ha = vha->hw;
 662         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 663
 664         /* wait for 5 min at the max for loop to be ready */
 665         loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
 666
 667         while ((!atomic_read(&base_vha->loop_down_timer) &&
 668             atomic_read(&base_vha->loop_state) == LOOP_DOWN) ||
 669             atomic_read(&base_vha->loop_state) != LOOP_READY) {
 670                 if (atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
 671                         return_status = QLA_FUNCTION_FAILED;
 672                         break;
 673                 }
 674                 msleep(1000);
 675                 if (time_after_eq(jiffies, loop_timeout)) {
 676                         return_status = QLA_FUNCTION_FAILED;
 677                         break;
 678                 }
 679         }
 680         return (return_status);
 681 }
 682
 683 void
 684 qla2x00_abort_fcport_cmds(fc_port_t *fcport)
 685 {
 686         int cnt, que, id;
 687         unsigned long flags;
 688         srb_t *sp;
 689         scsi_qla_host_t *vha = fcport->vha;
 690         struct qla_hw_data *ha = vha->hw;
 691         struct req_que *req;
 692
 693         spin_lock_irqsave(&ha->hardware_lock, flags);
 694         for (que = 0; que < QLA_MAX_HOST_QUES; que++) {
 695                 id = vha->req_ques[que];
 696                 req = ha->req_q_map[id];
 697                 if (!req)
 698                         continue;
 699                 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
 700                         sp = req->outstanding_cmds[cnt];
 701                         if (!sp)
 702                                 continue;
 703                         if (sp->fcport != fcport)
 704                                 continue;
 705
 706                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 707                         if (ha->isp_ops->abort_command(vha, sp, req)) {
 708                                 DEBUG2(qla_printk(KERN_WARNING, ha,
 709                                 "Abort failed --  %lx\n",
 710                                 sp->cmd->serial_number));
 711                         } else {
 712                                 if (qla2x00_eh_wait_on_command(sp->cmd) !=
 713                                         QLA_SUCCESS)
 714                                         DEBUG2(qla_printk(KERN_WARNING, ha,
 715                                         "Abort failed while waiting --  %lx\n",
 716                                         sp->cmd->serial_number));
 717                         }
 718                         spin_lock_irqsave(&ha->hardware_lock, flags);
 719                 }
 720         }
 721         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 722 }
 723
 724 static void
 725 qla2x00_block_error_handler(struct scsi_cmnd *cmnd)
 726 {
 727         struct Scsi_Host *shost = cmnd->device->host;
 728         struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
 729         unsigned long flags;
 730
 731         spin_lock_irqsave(shost->host_lock, flags);
 732         while (rport->port_state == FC_PORTSTATE_BLOCKED) {
 733                 spin_unlock_irqrestore(shost->host_lock, flags);
 734                 msleep(1000);
 735                 spin_lock_irqsave(shost->host_lock, flags);
 736         }
 737         spin_unlock_irqrestore(shost->host_lock, flags);
 738         return;
 739 }
 740
 741 /**************************************************************************
 742 * qla2xxx_eh_abort
 743 *
 744 * Description:
 745 *    The abort function will abort the specified command.
 746 *
 747 * Input:
 748 *    cmd = Linux SCSI command packet to be aborted.
 749 *
 750 * Returns:
 751 *    Either SUCCESS or FAILED.
 752 *
 753 * Note:
 754 *    Only return FAILED if command not returned by firmware.
 755 **************************************************************************/
 756 static int
 757 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
 758 {
 759         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 760         srb_t *sp;
 761         int ret, i;
 762         unsigned int id, lun;
 763         unsigned long serial;
 764         unsigned long flags;
 765         int wait = 0;
 766         struct qla_hw_data *ha = vha->hw;
 767         struct req_que *req;
 768         srb_t *spt;
 769
 770         qla2x00_block_error_handler(cmd);
 771
 772         if (!CMD_SP(cmd))
 773                 return SUCCESS;
 774
 775         ret = SUCCESS;
 776
 777         id = cmd->device->id;
 778         lun = cmd->device->lun;
 779         serial = cmd->serial_number;
 780         spt = (srb_t *) CMD_SP(cmd);
 781         if (!spt)
 782                 return SUCCESS;
 783         req = spt->que;
 784
 785         /* Check active list for command command. */
 786         spin_lock_irqsave(&ha->hardware_lock, flags);
 787         for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
 788                 sp = req->outstanding_cmds[i];
 789
 790                 if (sp == NULL)
 791                         continue;
 792
 793                 if (sp->cmd != cmd)
 794                         continue;
 795
 796                 DEBUG2(printk("%s(%ld): aborting sp %p from RISC."
 797                 " pid=%ld.\n", __func__, vha->host_no, sp, serial));
 798
 799                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 800                 if (ha->isp_ops->abort_command(vha, sp, req)) {
 801                         DEBUG2(printk("%s(%ld): abort_command "
 802                         "mbx failed.\n", __func__, vha->host_no));
 803                 } else {
 804                         DEBUG3(printk("%s(%ld): abort_command "
 805                         "mbx success.\n", __func__, vha->host_no));
 806                         wait = 1;
 807                 }
 808                 spin_lock_irqsave(&ha->hardware_lock, flags);
 809                 break;
 810         }
 811         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 812
 813         /* Wait for the command to be returned. */
 814         if (wait) {
 815                 if (qla2x00_eh_wait_on_command(cmd) != QLA_SUCCESS) {
 816                         qla_printk(KERN_ERR, ha,
 817                             "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
 818                             "%x.\n", vha->host_no, id, lun, serial, ret);
 819                         ret = FAILED;
 820                 }
 821         }
 822
 823         qla_printk(KERN_INFO, ha,
 824             "scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n",
 825             vha->host_no, id, lun, wait, serial, ret);
 826
 827         return ret;
 828 }
 829
 830 enum nexus_wait_type {
 831         WAIT_HOST = 0,
 832         WAIT_TARGET,
 833         WAIT_LUN,
 834 };
 835
 836 static int
 837 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *vha, unsigned int t,
 838         unsigned int l, srb_t *sp, enum nexus_wait_type type)
 839 {
 840         int cnt, match, status;
 841         unsigned long flags;
 842         struct qla_hw_data *ha = vha->hw;
 843         struct req_que *req;
 844
 845         status = QLA_SUCCESS;
 846         if (!sp)
 847                 return status;
 848
 849         spin_lock_irqsave(&ha->hardware_lock, flags);
 850         req = sp->que;
 851         for (cnt = 1; status == QLA_SUCCESS &&
 852                 cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
 853                 sp = req->outstanding_cmds[cnt];
 854                 if (!sp)
 855                         continue;
 856
 857                 if (vha->vp_idx != sp->fcport->vha->vp_idx)
 858                         continue;
 859                 match = 0;
 860                 switch (type) {
 861                 case WAIT_HOST:
 862                         match = 1;
 863                         break;
 864                 case WAIT_TARGET:
 865                         match = sp->cmd->device->id == t;
 866                         break;
 867                 case WAIT_LUN:
 868                         match = (sp->cmd->device->id == t &&
 869                                 sp->cmd->device->lun == l);
 870                         break;
 871                 }
 872                 if (!match)
 873                         continue;
 874
 875                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 876                 status = qla2x00_eh_wait_on_command(sp->cmd);
 877                 spin_lock_irqsave(&ha->hardware_lock, flags);
 878         }
 879         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 880
 881         return status;
 882 }
 883
 884 static char *reset_errors[] = {
 885         "HBA not online",
 886         "HBA not ready",
 887         "Task management failed",
 888         "Waiting for command completions",
 889 };
 890
 891 static int
 892 __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
 893     struct scsi_cmnd *cmd, int (*do_reset)(struct fc_port *, unsigned int))
 894 {
 895         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 896         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 897         int err;
 898
 899         qla2x00_block_error_handler(cmd);
 900
 901         if (!fcport)
 902                 return FAILED;
 903
 904         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET ISSUED.\n",
 905             vha->host_no, cmd->device->id, cmd->device->lun, name);
 906
 907         err = 0;
 908         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
 909                 goto eh_reset_failed;
 910         err = 1;
 911         if (qla2x00_wait_for_loop_ready(vha) != QLA_SUCCESS)
 912                 goto eh_reset_failed;
 913         err = 2;
 914         if (do_reset(fcport, cmd->device->lun) != QLA_SUCCESS)
 915                 goto eh_reset_failed;
 916         err = 3;
 917         if (qla2x00_eh_wait_for_pending_commands(vha, cmd->device->id,
 918             cmd->device->lun, (srb_t *) CMD_SP(cmd), type) != QLA_SUCCESS)
 919                 goto eh_reset_failed;
 920
 921         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET SUCCEEDED.\n",
 922             vha->host_no, cmd->device->id, cmd->device->lun, name);
 923
 924         return SUCCESS;
 925
 926  eh_reset_failed:
 927         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET FAILED: %s.\n"
 928             , vha->host_no, cmd->device->id, cmd->device->lun, name,
 929             reset_errors[err]);
 930         return FAILED;
 931 }
 932
 933 static int
 934 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
 935 {
 936         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 937         struct qla_hw_data *ha = vha->hw;
 938
 939         return __qla2xxx_eh_generic_reset("DEVICE", WAIT_LUN, cmd,
 940             ha->isp_ops->lun_reset);
 941 }
 942
 943 static int
 944 qla2xxx_eh_target_reset(struct scsi_cmnd *cmd)
 945 {
 946         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 947         struct qla_hw_data *ha = vha->hw;
 948
 949         return __qla2xxx_eh_generic_reset("TARGET", WAIT_TARGET, cmd,
 950             ha->isp_ops->target_reset);
 951 }
 952
 953 /**************************************************************************
 954 * qla2xxx_eh_bus_reset
 955 *
 956 * Description:
 957 *    The bus reset function will reset the bus and abort any executing
 958 *    commands.
 959 *
 960 * Input:
 961 *    cmd = Linux SCSI command packet of the command that cause the
 962 *          bus reset.
 963 *
 964 * Returns:
 965 *    SUCCESS/FAILURE (defined as macro in scsi.h).
 966 *
 967 **************************************************************************/
 968 static int
 969 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
 970 {
 971         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 972         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 973         int ret = FAILED;
 974         unsigned int id, lun;
 975         unsigned long serial;
 976         srb_t *sp = (srb_t *) CMD_SP(cmd);
 977
 978         qla2x00_block_error_handler(cmd);
 979
 980         id = cmd->device->id;
 981         lun = cmd->device->lun;
 982         serial = cmd->serial_number;
 983
 984         if (!fcport)
 985                 return ret;
 986
 987         qla_printk(KERN_INFO, vha->hw,
 988             "scsi(%ld:%d:%d): BUS RESET ISSUED.\n", vha->host_no, id, lun);
 989
 990         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
 991                 DEBUG2(printk("%s failed:board disabled\n",__func__));
 992                 goto eh_bus_reset_done;
 993         }
 994
 995         if (qla2x00_wait_for_loop_ready(vha) == QLA_SUCCESS) {
 996                 if (qla2x00_loop_reset(vha) == QLA_SUCCESS)
 997                         ret = SUCCESS;
 998         }
 999         if (ret == FAILED)
1000                 goto eh_bus_reset_done;
1001
1002         /* Flush outstanding commands. */
1003         if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, sp, WAIT_HOST) !=
1004             QLA_SUCCESS)
1005                 ret = FAILED;
1006
1007 eh_bus_reset_done:
1008         qla_printk(KERN_INFO, vha->hw, "%s: reset %s\n", __func__,
1009             (ret == FAILED) ? "failed" : "succeded");
1010
1011         return ret;
1012 }
1013
1014 /**************************************************************************
1015 * qla2xxx_eh_host_reset
1016 *
1017 * Description:
1018 *    The reset function will reset the Adapter.
1019 *
1020 * Input:
1021 *      cmd = Linux SCSI command packet of the command that cause the
1022 *            adapter reset.
1023 *
1024 * Returns:
1025 *      Either SUCCESS or FAILED.
1026 *
1027 * Note:
1028 **************************************************************************/
1029 static int
1030 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
1031 {
1032         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1033         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1034         struct qla_hw_data *ha = vha->hw;
1035         int ret = FAILED;
1036         unsigned int id, lun;
1037         unsigned long serial;
1038         srb_t *sp = (srb_t *) CMD_SP(cmd);
1039         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1040
1041         qla2x00_block_error_handler(cmd);
1042
1043         id = cmd->device->id;
1044         lun = cmd->device->lun;
1045         serial = cmd->serial_number;
1046
1047         if (!fcport)
1048                 return ret;
1049
1050         qla_printk(KERN_INFO, ha,
1051             "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", vha->host_no, id, lun);
1052
1053         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
1054                 goto eh_host_reset_lock;
1055
1056         /*
1057          * Fixme-may be dpc thread is active and processing
1058          * loop_resync,so wait a while for it to
1059          * be completed and then issue big hammer.Otherwise
1060          * it may cause I/O failure as big hammer marks the
1061          * devices as lost kicking of the port_down_timer
1062          * while dpc is stuck for the mailbox to complete.
1063          */
1064         qla2x00_wait_for_loop_ready(vha);
1065         if (vha != base_vha) {
1066                 if (qla2x00_vp_abort_isp(vha))
1067                         goto eh_host_reset_lock;
1068         } else {
1069                 set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1070                 if (qla2x00_abort_isp(base_vha)) {
1071                         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1072                         /* failed. schedule dpc to try */
1073                         set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags);
1074
1075                         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
1076                                 goto eh_host_reset_lock;
1077                 }
1078                 clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1079         }
1080
1081         /* Waiting for command to be returned to OS.*/
1082         if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, sp, WAIT_HOST) ==
1083                 QLA_SUCCESS)
1084                 ret = SUCCESS;
1085
1086 eh_host_reset_lock:
1087         qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
1088             (ret == FAILED) ? "failed" : "succeded");
1089
1090         return ret;
1091 }
1092
1093 /*
1094 * qla2x00_loop_reset
1095 *      Issue loop reset.
1096 *
1097 * Input:
1098 *      ha = adapter block pointer.
1099 *
1100 * Returns:
1101 *      0 = success
1102 */
1103 int
1104 qla2x00_loop_reset(scsi_qla_host_t *vha)
1105 {
1106         int ret;
1107         struct fc_port *fcport;
1108         struct qla_hw_data *ha = vha->hw;
1109
1110         if (ha->flags.enable_lip_full_login && !vha->vp_idx) {
1111                 ret = qla2x00_full_login_lip(vha);
1112                 if (ret != QLA_SUCCESS) {
1113                         DEBUG2_3(printk("%s(%ld): failed: "
1114                             "full_login_lip=%d.\n", __func__, vha->host_no,
1115                             ret));
1116                 }
1117                 atomic_set(&vha->loop_state, LOOP_DOWN);
1118                 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1119                 qla2x00_mark_all_devices_lost(vha, 0);
1120                 qla2x00_wait_for_loop_ready(vha);
1121         }
1122
1123         if (ha->flags.enable_lip_reset && !vha->vp_idx) {
1124                 ret = qla2x00_lip_reset(vha);
1125                 if (ret != QLA_SUCCESS) {
1126                         DEBUG2_3(printk("%s(%ld): failed: "
1127                             "lip_reset=%d.\n", __func__, vha->host_no, ret));
1128                 } else
1129                         qla2x00_wait_for_loop_ready(vha);
1130         }
1131
1132         if (ha->flags.enable_target_reset) {
1133                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
1134                         if (fcport->port_type != FCT_TARGET)
1135                                 continue;
1136
1137                         ret = ha->isp_ops->target_reset(fcport, 0);
1138                         if (ret != QLA_SUCCESS) {
1139                                 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1140                                     "target_reset=%d d_id=%x.\n", __func__,
1141                                     vha->host_no, ret, fcport->d_id.b24));
1142                         }
1143                 }
1144         }
1145         /* Issue marker command only when we are going to start the I/O */
1146         vha->marker_needed = 1;
1147
1148         return QLA_SUCCESS;
1149 }
1150
1151 void
1152 qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res)
1153 {
1154         int que, cnt;
1155         unsigned long flags;
1156         srb_t *sp;
1157         struct qla_hw_data *ha = vha->hw;
1158         struct req_que *req;
1159
1160         spin_lock_irqsave(&ha->hardware_lock, flags);
1161         for (que = 0; que < ha->max_queues; que++) {
1162                 req = ha->req_q_map[que];
1163                 if (!req)
1164                         continue;
1165                 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
1166                         sp = req->outstanding_cmds[cnt];
1167                         if (sp && sp->fcport->vha == vha) {
1168                                 req->outstanding_cmds[cnt] = NULL;
1169                                 sp->cmd->result = res;
1170                                 qla2x00_sp_compl(ha, sp);
1171                         }
1172                 }
1173         }
1174         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1175 }
1176
1177 static int
1178 qla2xxx_slave_alloc(struct scsi_device *sdev)
1179 {
1180         struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1181
1182         if (!rport || fc_remote_port_chkready(rport))
1183                 return -ENXIO;
1184
1185         sdev->hostdata = *(fc_port_t **)rport->dd_data;
1186
1187         return 0;
1188 }
1189
1190 static int
1191 qla2xxx_slave_configure(struct scsi_device *sdev)
1192 {
1193         scsi_qla_host_t *vha = shost_priv(sdev->host);
1194         struct qla_hw_data *ha = vha->hw;
1195         struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1196         struct req_que *req = ha->req_q_map[vha->req_ques[0]];
1197
1198         if (sdev->tagged_supported)
1199                 scsi_activate_tcq(sdev, req->max_q_depth);
1200         else
1201                 scsi_deactivate_tcq(sdev, req->max_q_depth);
1202
1203         rport->dev_loss_tmo = ha->port_down_retry_count;
1204
1205         return 0;
1206 }
1207
1208 static void
1209 qla2xxx_slave_destroy(struct scsi_device *sdev)
1210 {
1211         sdev->hostdata = NULL;
1212 }
1213
1214 static int
1215 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1216 {
1217         scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1218         return sdev->queue_depth;
1219 }
1220
1221 static int
1222 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1223 {
1224         if (sdev->tagged_supported) {
1225                 scsi_set_tag_type(sdev, tag_type);
1226                 if (tag_type)
1227                         scsi_activate_tcq(sdev, sdev->queue_depth);
1228                 else
1229                         scsi_deactivate_tcq(sdev, sdev->queue_depth);
1230         } else
1231                 tag_type = 0;
1232
1233         return tag_type;
1234 }
1235
1236 /**
1237  * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1238  * @ha: HA context
1239  *
1240  * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1241  * supported addressing method.
1242  */
1243 static void
1244 qla2x00_config_dma_addressing(scsi_qla_host_t *vha)
1245 {
1246         struct qla_hw_data *ha = vha->hw;
1247         /* Assume a 32bit DMA mask. */
1248         ha->flags.enable_64bit_addressing = 0;
1249
1250         if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1251                 /* Any upper-dword bits set? */
1252                 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1253                     !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1254                         /* Ok, a 64bit DMA mask is applicable. */
1255                         ha->flags.enable_64bit_addressing = 1;
1256                         ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1257                         ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1258                         return;
1259                 }
1260         }
1261
1262         dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1263         pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
1264 }
1265
1266 static void
1267 qla2x00_enable_intrs(struct qla_hw_data *ha)
1268 {
1269         unsigned long flags = 0;
1270         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1271
1272         spin_lock_irqsave(&ha->hardware_lock, flags);
1273         ha->interrupts_on = 1;
1274         /* enable risc and host interrupts */
1275         WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1276         RD_REG_WORD(&reg->ictrl);
1277         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1278
1279 }
1280
1281 static void
1282 qla2x00_disable_intrs(struct qla_hw_data *ha)
1283 {
1284         unsigned long flags = 0;
1285         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1286
1287         spin_lock_irqsave(&ha->hardware_lock, flags);
1288         ha->interrupts_on = 0;
1289         /* disable risc and host interrupts */
1290         WRT_REG_WORD(&reg->ictrl, 0);
1291         RD_REG_WORD(&reg->ictrl);
1292         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1293 }
1294
1295 static void
1296 qla24xx_enable_intrs(struct qla_hw_data *ha)
1297 {
1298         unsigned long flags = 0;
1299         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1300
1301         spin_lock_irqsave(&ha->hardware_lock, flags);
1302         ha->interrupts_on = 1;
1303         WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1304         RD_REG_DWORD(&reg->ictrl);
1305         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1306 }
1307
1308 static void
1309 qla24xx_disable_intrs(struct qla_hw_data *ha)
1310 {
1311         unsigned long flags = 0;
1312         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1313
1314         if (IS_NOPOLLING_TYPE(ha))
1315                 return;
1316         spin_lock_irqsave(&ha->hardware_lock, flags);
1317         ha->interrupts_on = 0;
1318         WRT_REG_DWORD(&reg->ictrl, 0);
1319         RD_REG_DWORD(&reg->ictrl);
1320         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1321 }
1322
1323 static struct isp_operations qla2100_isp_ops = {
1324         .pci_config             = qla2100_pci_config,
1325         .reset_chip             = qla2x00_reset_chip,
1326         .chip_diag              = qla2x00_chip_diag,
1327         .config_rings           = qla2x00_config_rings,
1328         .reset_adapter          = qla2x00_reset_adapter,
1329         .nvram_config           = qla2x00_nvram_config,
1330         .update_fw_options      = qla2x00_update_fw_options,
1331         .load_risc              = qla2x00_load_risc,
1332         .pci_info_str           = qla2x00_pci_info_str,
1333         .fw_version_str         = qla2x00_fw_version_str,
1334         .intr_handler           = qla2100_intr_handler,
1335         .enable_intrs           = qla2x00_enable_intrs,
1336         .disable_intrs          = qla2x00_disable_intrs,
1337         .abort_command          = qla2x00_abort_command,
1338         .target_reset           = qla2x00_abort_target,
1339         .lun_reset              = qla2x00_lun_reset,
1340         .fabric_login           = qla2x00_login_fabric,
1341         .fabric_logout          = qla2x00_fabric_logout,
1342         .calc_req_entries       = qla2x00_calc_iocbs_32,
1343         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1344         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1345         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1346         .read_nvram             = qla2x00_read_nvram_data,
1347         .write_nvram            = qla2x00_write_nvram_data,
1348         .fw_dump                = qla2100_fw_dump,
1349         .beacon_on              = NULL,
1350         .beacon_off             = NULL,
1351         .beacon_blink           = NULL,
1352         .read_optrom            = qla2x00_read_optrom_data,
1353         .write_optrom           = qla2x00_write_optrom_data,
1354         .get_flash_version      = qla2x00_get_flash_version,
1355         .start_scsi             = qla2x00_start_scsi,
1356         .wrt_req_reg            = NULL,
1357         .wrt_rsp_reg            = NULL,
1358         .rd_req_reg             = NULL,
1359 };
1360
1361 static struct isp_operations qla2300_isp_ops = {
1362         .pci_config             = qla2300_pci_config,
1363         .reset_chip             = qla2x00_reset_chip,
1364         .chip_diag              = qla2x00_chip_diag,
1365         .config_rings           = qla2x00_config_rings,
1366         .reset_adapter          = qla2x00_reset_adapter,
1367         .nvram_config           = qla2x00_nvram_config,
1368         .update_fw_options      = qla2x00_update_fw_options,
1369         .load_risc              = qla2x00_load_risc,
1370         .pci_info_str           = qla2x00_pci_info_str,
1371         .fw_version_str         = qla2x00_fw_version_str,
1372         .intr_handler           = qla2300_intr_handler,
1373         .enable_intrs           = qla2x00_enable_intrs,
1374         .disable_intrs          = qla2x00_disable_intrs,
1375         .abort_command          = qla2x00_abort_command,
1376         .target_reset           = qla2x00_abort_target,
1377         .lun_reset              = qla2x00_lun_reset,
1378         .fabric_login           = qla2x00_login_fabric,
1379         .fabric_logout          = qla2x00_fabric_logout,
1380         .calc_req_entries       = qla2x00_calc_iocbs_32,
1381         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1382         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1383         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1384         .read_nvram             = qla2x00_read_nvram_data,
1385         .write_nvram            = qla2x00_write_nvram_data,
1386         .fw_dump                = qla2300_fw_dump,
1387         .beacon_on              = qla2x00_beacon_on,
1388         .beacon_off             = qla2x00_beacon_off,
1389         .beacon_blink           = qla2x00_beacon_blink,
1390         .read_optrom            = qla2x00_read_optrom_data,
1391         .write_optrom           = qla2x00_write_optrom_data,
1392         .get_flash_version      = qla2x00_get_flash_version,
1393         .start_scsi             = qla2x00_start_scsi,
1394         .wrt_req_reg            = NULL,
1395         .wrt_rsp_reg            = NULL,
1396         .rd_req_reg             = NULL,
1397 };
1398
1399 static struct isp_operations qla24xx_isp_ops = {
1400         .pci_config             = qla24xx_pci_config,
1401         .reset_chip             = qla24xx_reset_chip,
1402         .chip_diag              = qla24xx_chip_diag,
1403         .config_rings           = qla24xx_config_rings,
1404         .reset_adapter          = qla24xx_reset_adapter,
1405         .nvram_config           = qla24xx_nvram_config,
1406         .update_fw_options      = qla24xx_update_fw_options,
1407         .load_risc              = qla24xx_load_risc,
1408         .pci_info_str           = qla24xx_pci_info_str,
1409         .fw_version_str         = qla24xx_fw_version_str,
1410         .intr_handler           = qla24xx_intr_handler,
1411         .enable_intrs           = qla24xx_enable_intrs,
1412         .disable_intrs          = qla24xx_disable_intrs,
1413         .abort_command          = qla24xx_abort_command,
1414         .target_reset           = qla24xx_abort_target,
1415         .lun_reset              = qla24xx_lun_reset,
1416         .fabric_login           = qla24xx_login_fabric,
1417         .fabric_logout          = qla24xx_fabric_logout,
1418         .calc_req_entries       = NULL,
1419         .build_iocbs            = NULL,
1420         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1421         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1422         .read_nvram             = qla24xx_read_nvram_data,
1423         .write_nvram            = qla24xx_write_nvram_data,
1424         .fw_dump                = qla24xx_fw_dump,
1425         .beacon_on              = qla24xx_beacon_on,
1426         .beacon_off             = qla24xx_beacon_off,
1427         .beacon_blink           = qla24xx_beacon_blink,
1428         .read_optrom            = qla24xx_read_optrom_data,
1429         .write_optrom           = qla24xx_write_optrom_data,
1430         .get_flash_version      = qla24xx_get_flash_version,
1431         .start_scsi             = qla24xx_start_scsi,
1432         .wrt_req_reg            = qla24xx_wrt_req_reg,
1433         .wrt_rsp_reg            = qla24xx_wrt_rsp_reg,
1434         .rd_req_reg             = qla24xx_rd_req_reg,
1435 };
1436
1437 static struct isp_operations qla25xx_isp_ops = {
1438         .pci_config             = qla25xx_pci_config,
1439         .reset_chip             = qla24xx_reset_chip,
1440         .chip_diag              = qla24xx_chip_diag,
1441         .config_rings           = qla24xx_config_rings,
1442         .reset_adapter          = qla24xx_reset_adapter,
1443         .nvram_config           = qla24xx_nvram_config,
1444         .update_fw_options      = qla24xx_update_fw_options,
1445         .load_risc              = qla24xx_load_risc,
1446         .pci_info_str           = qla24xx_pci_info_str,
1447         .fw_version_str         = qla24xx_fw_version_str,
1448         .intr_handler           = qla24xx_intr_handler,
1449         .enable_intrs           = qla24xx_enable_intrs,
1450         .disable_intrs          = qla24xx_disable_intrs,
1451         .abort_command          = qla24xx_abort_command,
1452         .target_reset           = qla24xx_abort_target,
1453         .lun_reset              = qla24xx_lun_reset,
1454         .fabric_login           = qla24xx_login_fabric,
1455         .fabric_logout          = qla24xx_fabric_logout,
1456         .calc_req_entries       = NULL,
1457         .build_iocbs            = NULL,
1458         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1459         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1460         .read_nvram             = qla25xx_read_nvram_data,
1461         .write_nvram            = qla25xx_write_nvram_data,
1462         .fw_dump                = qla25xx_fw_dump,
1463         .beacon_on              = qla24xx_beacon_on,
1464         .beacon_off             = qla24xx_beacon_off,
1465         .beacon_blink           = qla24xx_beacon_blink,
1466         .read_optrom            = qla25xx_read_optrom_data,
1467         .write_optrom           = qla24xx_write_optrom_data,
1468         .get_flash_version      = qla24xx_get_flash_version,
1469         .start_scsi             = qla24xx_start_scsi,
1470         .wrt_req_reg            = qla24xx_wrt_req_reg,
1471         .wrt_rsp_reg            = qla24xx_wrt_rsp_reg,
1472         .rd_req_reg             = qla24xx_rd_req_reg,
1473 };
1474
1475 static struct isp_operations qla81xx_isp_ops = {
1476         .pci_config             = qla25xx_pci_config,
1477         .reset_chip             = qla24xx_reset_chip,
1478         .chip_diag              = qla24xx_chip_diag,
1479         .config_rings           = qla24xx_config_rings,
1480         .reset_adapter          = qla24xx_reset_adapter,
1481         .nvram_config           = qla81xx_nvram_config,
1482         .update_fw_options      = qla81xx_update_fw_options,
1483         .load_risc              = qla24xx_load_risc,
1484         .pci_info_str           = qla24xx_pci_info_str,
1485         .fw_version_str         = qla24xx_fw_version_str,
1486         .intr_handler           = qla24xx_intr_handler,
1487         .enable_intrs           = qla24xx_enable_intrs,
1488         .disable_intrs          = qla24xx_disable_intrs,
1489         .abort_command          = qla24xx_abort_command,
1490         .target_reset           = qla24xx_abort_target,
1491         .lun_reset              = qla24xx_lun_reset,
1492         .fabric_login           = qla24xx_login_fabric,
1493         .fabric_logout          = qla24xx_fabric_logout,
1494         .calc_req_entries       = NULL,
1495         .build_iocbs            = NULL,
1496         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1497         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1498         .read_nvram             = qla25xx_read_nvram_data,
1499         .write_nvram            = qla25xx_write_nvram_data,
1500         .fw_dump                = qla81xx_fw_dump,
1501         .beacon_on              = qla24xx_beacon_on,
1502         .beacon_off             = qla24xx_beacon_off,
1503         .beacon_blink           = qla24xx_beacon_blink,
1504         .read_optrom            = qla25xx_read_optrom_data,
1505         .write_optrom           = qla24xx_write_optrom_data,
1506         .get_flash_version      = qla24xx_get_flash_version,
1507         .start_scsi             = qla24xx_start_scsi,
1508         .wrt_req_reg            = qla24xx_wrt_req_reg,
1509         .wrt_rsp_reg            = qla24xx_wrt_rsp_reg,
1510         .rd_req_reg             = qla24xx_rd_req_reg,
1511 };
1512
1513 static inline void
1514 qla2x00_set_isp_flags(struct qla_hw_data *ha)
1515 {
1516         ha->device_type = DT_EXTENDED_IDS;
1517         switch (ha->pdev->device) {
1518         case PCI_DEVICE_ID_QLOGIC_ISP2100:
1519                 ha->device_type |= DT_ISP2100;
1520                 ha->device_type &= ~DT_EXTENDED_IDS;
1521                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1522                 break;
1523         case PCI_DEVICE_ID_QLOGIC_ISP2200:
1524                 ha->device_type |= DT_ISP2200;
1525                 ha->device_type &= ~DT_EXTENDED_IDS;
1526                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1527                 break;
1528         case PCI_DEVICE_ID_QLOGIC_ISP2300:
1529                 ha->device_type |= DT_ISP2300;
1530                 ha->device_type |= DT_ZIO_SUPPORTED;
1531                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1532                 break;
1533         case PCI_DEVICE_ID_QLOGIC_ISP2312:
1534                 ha->device_type |= DT_ISP2312;
1535                 ha->device_type |= DT_ZIO_SUPPORTED;
1536                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1537                 break;
1538         case PCI_DEVICE_ID_QLOGIC_ISP2322:
1539                 ha->device_type |= DT_ISP2322;
1540                 ha->device_type |= DT_ZIO_SUPPORTED;
1541                 if (ha->pdev->subsystem_vendor == 0x1028 &&
1542                     ha->pdev->subsystem_device == 0x0170)
1543                         ha->device_type |= DT_OEM_001;
1544                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1545                 break;
1546         case PCI_DEVICE_ID_QLOGIC_ISP6312:
1547                 ha->device_type |= DT_ISP6312;
1548                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1549                 break;
1550         case PCI_DEVICE_ID_QLOGIC_ISP6322:
1551                 ha->device_type |= DT_ISP6322;
1552                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1553                 break;
1554         case PCI_DEVICE_ID_QLOGIC_ISP2422:
1555                 ha->device_type |= DT_ISP2422;
1556                 ha->device_type |= DT_ZIO_SUPPORTED;
1557                 ha->device_type |= DT_FWI2;
1558                 ha->device_type |= DT_IIDMA;
1559                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1560                 break;
1561         case PCI_DEVICE_ID_QLOGIC_ISP2432:
1562                 ha->device_type |= DT_ISP2432;
1563                 ha->device_type |= DT_ZIO_SUPPORTED;
1564                 ha->device_type |= DT_FWI2;
1565                 ha->device_type |= DT_IIDMA;
1566                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1567                 break;
1568         case PCI_DEVICE_ID_QLOGIC_ISP8432:
1569                 ha->device_type |= DT_ISP8432;
1570                 ha->device_type |= DT_ZIO_SUPPORTED;
1571                 ha->device_type |= DT_FWI2;
1572                 ha->device_type |= DT_IIDMA;
1573                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1574                 break;
1575         case PCI_DEVICE_ID_QLOGIC_ISP5422:
1576                 ha->device_type |= DT_ISP5422;
1577                 ha->device_type |= DT_FWI2;
1578                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1579                 break;
1580         case PCI_DEVICE_ID_QLOGIC_ISP5432:
1581                 ha->device_type |= DT_ISP5432;
1582                 ha->device_type |= DT_FWI2;
1583                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1584                 break;
1585         case PCI_DEVICE_ID_QLOGIC_ISP2532:
1586                 ha->device_type |= DT_ISP2532;
1587                 ha->device_type |= DT_ZIO_SUPPORTED;
1588                 ha->device_type |= DT_FWI2;
1589                 ha->device_type |= DT_IIDMA;
1590                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1591                 break;
1592         case PCI_DEVICE_ID_QLOGIC_ISP8001:
1593                 ha->device_type |= DT_ISP8001;
1594                 ha->device_type |= DT_ZIO_SUPPORTED;
1595                 ha->device_type |= DT_FWI2;
1596                 ha->device_type |= DT_IIDMA;
1597                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1598                 break;
1599         }
1600 }
1601
1602 static int
1603 qla2x00_iospace_config(struct qla_hw_data *ha)
1604 {
1605         resource_size_t pio;
1606         uint16_t msix;
1607
1608         if (pci_request_selected_regions(ha->pdev, ha->bars,
1609             QLA2XXX_DRIVER_NAME)) {
1610                 qla_printk(KERN_WARNING, ha,
1611                     "Failed to reserve PIO/MMIO regions (%s)\n",
1612                     pci_name(ha->pdev));
1613
1614                 goto iospace_error_exit;
1615         }
1616         if (!(ha->bars & 1))
1617                 goto skip_pio;
1618
1619         /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1620         pio = pci_resource_start(ha->pdev, 0);
1621         if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
1622                 if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1623                         qla_printk(KERN_WARNING, ha,
1624                             "Invalid PCI I/O region size (%s)...\n",
1625                                 pci_name(ha->pdev));
1626                         pio = 0;
1627                 }
1628         } else {
1629                 qla_printk(KERN_WARNING, ha,
1630                     "region #0 not a PIO resource (%s)...\n",
1631                     pci_name(ha->pdev));
1632                 pio = 0;
1633         }
1634         ha->pio_address = pio;
1635
1636 skip_pio:
1637         /* Use MMIO operations for all accesses. */
1638         if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
1639                 qla_printk(KERN_ERR, ha,
1640                     "region #1 not an MMIO resource (%s), aborting\n",
1641                     pci_name(ha->pdev));
1642                 goto iospace_error_exit;
1643         }
1644         if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
1645                 qla_printk(KERN_ERR, ha,
1646                     "Invalid PCI mem region size (%s), aborting\n",
1647                         pci_name(ha->pdev));
1648                 goto iospace_error_exit;
1649         }
1650
1651         ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
1652         if (!ha->iobase) {
1653                 qla_printk(KERN_ERR, ha,
1654                     "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1655
1656                 goto iospace_error_exit;
1657         }
1658
1659         /* Determine queue resources */
1660         ha->max_queues = 1;
1661         if (ql2xmaxqueues <= 1 || (!IS_QLA25XX(ha) && !IS_QLA81XX(ha)))
1662                 goto mqiobase_exit;
1663         ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 3),
1664                         pci_resource_len(ha->pdev, 3));
1665         if (ha->mqiobase) {
1666                 /* Read MSIX vector size of the board */
1667                 pci_read_config_word(ha->pdev, QLA_PCI_MSIX_CONTROL, &msix);
1668                 ha->msix_count = msix;
1669                 /* Max queues are bounded by available msix vectors */
1670                 /* queue 0 uses two msix vectors */
1671                 if (ha->msix_count - 1 < ql2xmaxqueues)
1672                         ha->max_queues = ha->msix_count - 1;
1673                 else if (ql2xmaxqueues > QLA_MQ_SIZE)
1674                         ha->max_queues = QLA_MQ_SIZE;
1675                 else
1676                         ha->max_queues = ql2xmaxqueues;
1677                 qla_printk(KERN_INFO, ha,
1678                         "MSI-X vector count: %d\n", msix);
1679         }
1680
1681 mqiobase_exit:
1682         ha->msix_count = ha->max_queues + 1;
1683         return (0);
1684
1685 iospace_error_exit:
1686         return (-ENOMEM);
1687 }
1688
1689 static void
1690 qla2xxx_scan_start(struct Scsi_Host *shost)
1691 {
1692         scsi_qla_host_t *vha = shost_priv(shost);
1693
1694         set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1695         set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1696         set_bit(RSCN_UPDATE, &vha->dpc_flags);
1697         set_bit(NPIV_CONFIG_NEEDED, &vha->dpc_flags);
1698 }
1699
1700 static int
1701 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1702 {
1703         scsi_qla_host_t *vha = shost_priv(shost);
1704
1705         if (!vha->host)
1706                 return 1;
1707         if (time > vha->hw->loop_reset_delay * HZ)
1708                 return 1;
1709
1710         return atomic_read(&vha->loop_state) == LOOP_READY;
1711 }
1712
1713 /*
1714  * PCI driver interface
1715  */
1716 static int __devinit
1717 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1718 {
1719         int     ret = -ENODEV;
1720         struct Scsi_Host *host;
1721         scsi_qla_host_t *base_vha = NULL;
1722         struct qla_hw_data *ha;
1723         char pci_info[30];
1724         char fw_str[30];
1725         struct scsi_host_template *sht;
1726         int bars, max_id, mem_only = 0;
1727         uint16_t req_length = 0, rsp_length = 0;
1728         struct req_que *req = NULL;
1729         struct rsp_que *rsp = NULL;
1730
1731         bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
1732         sht = &qla2x00_driver_template;
1733         if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1734             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1735             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8432 ||
1736             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1737             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
1738             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532 ||
1739             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8001) {
1740                 bars = pci_select_bars(pdev, IORESOURCE_MEM);
1741                 sht = &qla24xx_driver_template;
1742                 mem_only = 1;
1743         }
1744
1745         if (mem_only) {
1746                 if (pci_enable_device_mem(pdev))
1747                         goto probe_out;
1748         } else {
1749                 if (pci_enable_device(pdev))
1750                         goto probe_out;
1751         }
1752
1753         /* This may fail but that's ok */
1754         pci_enable_pcie_error_reporting(pdev);
1755
1756         ha = kzalloc(sizeof(struct qla_hw_data), GFP_KERNEL);
1757         if (!ha) {
1758                 DEBUG(printk("Unable to allocate memory for ha\n"));
1759                 goto probe_out;
1760         }
1761         ha->pdev = pdev;
1762
1763         /* Clear our data area */
1764         ha->bars = bars;
1765         ha->mem_only = mem_only;
1766         spin_lock_init(&ha->hardware_lock);
1767
1768         /* Set ISP-type information. */
1769         qla2x00_set_isp_flags(ha);
1770         /* Configure PCI I/O space */
1771         ret = qla2x00_iospace_config(ha);
1772         if (ret)
1773                 goto probe_hw_failed;
1774
1775         qla_printk(KERN_INFO, ha,
1776             "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1777             ha->iobase);
1778
1779         ha->prev_topology = 0;
1780         ha->init_cb_size = sizeof(init_cb_t);
1781         ha->link_data_rate = PORT_SPEED_UNKNOWN;
1782         ha->optrom_size = OPTROM_SIZE_2300;
1783
1784         /* Assign ISP specific operations. */
1785         max_id = MAX_TARGETS_2200;
1786         if (IS_QLA2100(ha)) {
1787                 max_id = MAX_TARGETS_2100;
1788                 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1789                 req_length = REQUEST_ENTRY_CNT_2100;
1790                 rsp_length = RESPONSE_ENTRY_CNT_2100;
1791                 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
1792                 ha->gid_list_info_size = 4;
1793                 ha->flash_conf_off = ~0;
1794                 ha->flash_data_off = ~0;
1795                 ha->nvram_conf_off = ~0;
1796                 ha->nvram_data_off = ~0;
1797                 ha->isp_ops = &qla2100_isp_ops;
1798         } else if (IS_QLA2200(ha)) {
1799                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1800                 req_length = REQUEST_ENTRY_CNT_2200;
1801                 rsp_length = RESPONSE_ENTRY_CNT_2100;
1802                 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
1803                 ha->gid_list_info_size = 4;
1804                 ha->flash_conf_off = ~0;
1805                 ha->flash_data_off = ~0;
1806                 ha->nvram_conf_off = ~0;
1807                 ha->nvram_data_off = ~0;
1808                 ha->isp_ops = &qla2100_isp_ops;
1809         } else if (IS_QLA23XX(ha)) {
1810                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1811                 req_length = REQUEST_ENTRY_CNT_2200;
1812                 rsp_length = RESPONSE_ENTRY_CNT_2300;
1813                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
1814                 ha->gid_list_info_size = 6;
1815                 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1816                         ha->optrom_size = OPTROM_SIZE_2322;
1817                 ha->flash_conf_off = ~0;
1818                 ha->flash_data_off = ~0;
1819                 ha->nvram_conf_off = ~0;
1820                 ha->nvram_data_off = ~0;
1821                 ha->isp_ops = &qla2300_isp_ops;
1822         } else if (IS_QLA24XX_TYPE(ha)) {
1823                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1824                 req_length = REQUEST_ENTRY_CNT_24XX;
1825                 rsp_length = RESPONSE_ENTRY_CNT_2300;
1826                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
1827                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1828                 ha->gid_list_info_size = 8;
1829                 ha->optrom_size = OPTROM_SIZE_24XX;
1830                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA24XX;
1831                 ha->isp_ops = &qla24xx_isp_ops;
1832                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
1833                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
1834                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
1835                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
1836         } else if (IS_QLA25XX(ha)) {
1837                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1838                 req_length = REQUEST_ENTRY_CNT_24XX;
1839                 rsp_length = RESPONSE_ENTRY_CNT_2300;
1840                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
1841                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1842                 ha->gid_list_info_size = 8;
1843                 ha->optrom_size = OPTROM_SIZE_25XX;
1844                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
1845                 ha->isp_ops = &qla25xx_isp_ops;
1846                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
1847                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
1848                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
1849                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
1850         } else if (IS_QLA81XX(ha)) {
1851                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1852                 req_length = REQUEST_ENTRY_CNT_24XX;
1853                 rsp_length = RESPONSE_ENTRY_CNT_2300;
1854                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
1855                 ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
1856                 ha->gid_list_info_size = 8;
1857                 ha->optrom_size = OPTROM_SIZE_81XX;
1858                 ha->isp_ops = &qla81xx_isp_ops;
1859                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
1860                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
1861                 ha->nvram_conf_off = ~0;
1862                 ha->nvram_data_off = ~0;
1863         }
1864
1865         mutex_init(&ha->vport_lock);
1866         init_completion(&ha->mbx_cmd_comp);
1867         complete(&ha->mbx_cmd_comp);
1868         init_completion(&ha->mbx_intr_comp);
1869
1870         set_bit(0, (unsigned long *) ha->vp_idx_map);
1871
1872         ret = qla2x00_mem_alloc(ha, req_length, rsp_length, &req, &rsp);
1873         if (!ret) {
1874                 qla_printk(KERN_WARNING, ha,
1875                     "[ERROR] Failed to allocate memory for adapter\n");
1876
1877                 goto probe_hw_failed;
1878         }
1879
1880         req->max_q_depth = MAX_Q_DEPTH;
1881         if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
1882                 req->max_q_depth = ql2xmaxqdepth;
1883
1884
1885         base_vha = qla2x00_create_host(sht, ha);
1886         if (!base_vha) {
1887                 qla_printk(KERN_WARNING, ha,
1888                     "[ERROR] Failed to allocate memory for scsi_host\n");
1889
1890                 ret = -ENOMEM;
1891                 goto probe_hw_failed;
1892         }
1893
1894         pci_set_drvdata(pdev, base_vha);
1895
1896         qla2x00_config_dma_addressing(base_vha);
1897
1898         host = base_vha->host;
1899         base_vha->req_ques[0] = req->id;
1900         host->can_queue = req->length + 128;
1901         if (IS_QLA2XXX_MIDTYPE(ha))
1902                 base_vha->mgmt_svr_loop_id = 10 + base_vha->vp_idx;
1903         else
1904                 base_vha->mgmt_svr_loop_id = MANAGEMENT_SERVER +
1905                                                 base_vha->vp_idx;
1906         if (IS_QLA2100(ha))
1907                 host->sg_tablesize = 32;
1908         host->max_id = max_id;
1909         host->this_id = 255;
1910         host->cmd_per_lun = 3;
1911         host->unique_id = host->host_no;
1912         host->max_cmd_len = MAX_CMDSZ;
1913         host->max_channel = MAX_BUSES - 1;
1914         host->max_lun = MAX_LUNS;
1915         host->transportt = qla2xxx_transport_template;
1916
1917         /* Set up the irqs */
1918         ret = qla2x00_request_irqs(ha, rsp);
1919         if (ret)
1920                 goto probe_failed;
1921
1922         /* Alloc arrays of request and response ring ptrs */
1923         if (!qla2x00_alloc_queues(ha)) {
1924                 qla_printk(KERN_WARNING, ha,
1925                 "[ERROR] Failed to allocate memory for queue"
1926                 " pointers\n");
1927                 goto probe_failed;
1928         }
1929         ha->rsp_q_map[0] = rsp;
1930         ha->req_q_map[0] = req;
1931
1932         if (ha->mqenable) {
1933                 ha->isp_ops->wrt_req_reg = qla25xx_wrt_req_reg;
1934                 ha->isp_ops->wrt_rsp_reg = qla25xx_wrt_rsp_reg;
1935                 ha->isp_ops->rd_req_reg = qla25xx_rd_req_reg;
1936         }
1937
1938         if (qla2x00_initialize_adapter(base_vha)) {
1939                 qla_printk(KERN_WARNING, ha,
1940                     "Failed to initialize adapter\n");
1941
1942                 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1943                     "Adapter flags %x.\n",
1944                     base_vha->host_no, base_vha->device_flags));
1945
1946                 ret = -ENODEV;
1947                 goto probe_failed;
1948         }
1949
1950         /*
1951          * Startup the kernel thread for this host adapter
1952          */
1953         ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
1954                         "%s_dpc", base_vha->host_str);
1955         if (IS_ERR(ha->dpc_thread)) {
1956                 qla_printk(KERN_WARNING, ha,
1957                     "Unable to start DPC thread!\n");
1958                 ret = PTR_ERR(ha->dpc_thread);
1959                 goto probe_failed;
1960         }
1961
1962         list_add_tail(&base_vha->list, &ha->vp_list);
1963         base_vha->host->irq = ha->pdev->irq;
1964
1965         /* Initialized the timer */
1966         qla2x00_start_timer(base_vha, qla2x00_timer, WATCH_INTERVAL);
1967
1968         DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1969             base_vha->host_no, ha));
1970
1971         base_vha->flags.init_done = 1;
1972         base_vha->flags.online = 1;
1973
1974         ret = scsi_add_host(host, &pdev->dev);
1975         if (ret)
1976                 goto probe_failed;
1977
1978         ha->isp_ops->enable_intrs(ha);
1979
1980         scsi_scan_host(host);
1981
1982         qla2x00_alloc_sysfs_attr(base_vha);
1983
1984         qla2x00_init_host_attr(base_vha);
1985
1986         qla2x00_dfs_setup(base_vha);
1987
1988         qla_printk(KERN_INFO, ha, "\n"
1989             " QLogic Fibre Channel HBA Driver: %s\n"
1990             "  QLogic %s - %s\n"
1991             "  ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1992             qla2x00_version_str, ha->model_number,
1993             ha->model_desc ? ha->model_desc : "", pdev->device,
1994             ha->isp_ops->pci_info_str(base_vha, pci_info), pci_name(pdev),
1995             ha->flags.enable_64bit_addressing ? '+' : '-', base_vha->host_no,
1996             ha->isp_ops->fw_version_str(base_vha, fw_str));
1997
1998         return 0;
1999
2000 probe_failed:
2001         qla2x00_free_device(base_vha);
2002
2003         scsi_host_put(base_vha->host);
2004
2005 probe_hw_failed:
2006         if (ha->iobase)
2007                 iounmap(ha->iobase);
2008
2009         pci_release_selected_regions(ha->pdev, ha->bars);
2010         kfree(ha);
2011         ha = NULL;
2012
2013 probe_out:
2014         pci_disable_device(pdev);
2015         return ret;
2016 }
2017
2018 static void
2019 qla2x00_remove_one(struct pci_dev *pdev)
2020 {
2021         scsi_qla_host_t *base_vha, *vha, *temp;
2022         struct qla_hw_data  *ha;
2023
2024         base_vha = pci_get_drvdata(pdev);
2025         ha = base_vha->hw;
2026
2027         list_for_each_entry_safe(vha, temp, &ha->vp_list, list) {
2028                 if (vha && vha->fc_vport)
2029                         fc_vport_terminate(vha->fc_vport);
2030         }
2031
2032         set_bit(UNLOADING, &base_vha->dpc_flags);
2033
2034         qla2x00_dfs_remove(base_vha);
2035
2036         qla84xx_put_chip(base_vha);
2037
2038         qla2x00_free_sysfs_attr(base_vha);
2039
2040         fc_remove_host(base_vha->host);
2041
2042         scsi_remove_host(base_vha->host);
2043
2044         qla2x00_free_device(base_vha);
2045
2046         scsi_host_put(base_vha->host);
2047
2048         if (ha->iobase)
2049                 iounmap(ha->iobase);
2050
2051         if (ha->mqiobase)
2052                 iounmap(ha->mqiobase);
2053
2054         pci_release_selected_regions(ha->pdev, ha->bars);
2055         kfree(ha);
2056         ha = NULL;
2057
2058         pci_disable_device(pdev);
2059         pci_set_drvdata(pdev, NULL);
2060 }
2061
2062 static void
2063 qla2x00_free_device(scsi_qla_host_t *vha)
2064 {
2065         struct qla_hw_data *ha = vha->hw;
2066         qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
2067
2068         /* Disable timer */
2069         if (vha->timer_active)
2070                 qla2x00_stop_timer(vha);
2071
2072         vha->flags.online = 0;
2073
2074         /* Kill the kernel thread for this host */
2075         if (ha->dpc_thread) {
2076                 struct task_struct *t = ha->dpc_thread;
2077
2078                 /*
2079                  * qla2xxx_wake_dpc checks for ->dpc_thread
2080                  * so we need to zero it out.
2081                  */
2082                 ha->dpc_thread = NULL;
2083                 kthread_stop(t);
2084         }
2085
2086         if (ha->flags.fce_enabled)
2087                 qla2x00_disable_fce_trace(vha, NULL, NULL);
2088
2089         if (ha->eft)
2090                 qla2x00_disable_eft_trace(vha);
2091
2092         /* Stop currently executing firmware. */
2093         qla2x00_try_to_stop_firmware(vha);
2094
2095         /* turn-off interrupts on the card */
2096         if (ha->interrupts_on)
2097                 ha->isp_ops->disable_intrs(ha);
2098
2099         qla2x00_free_irqs(vha);
2100
2101         qla2x00_mem_free(ha);
2102
2103         qla2x00_free_queues(ha);
2104 }
2105
2106 static inline void
2107 qla2x00_schedule_rport_del(struct scsi_qla_host *vha, fc_port_t *fcport,
2108     int defer)
2109 {
2110         struct fc_rport *rport;
2111
2112         if (!fcport->rport)
2113                 return;
2114
2115         rport = fcport->rport;
2116         if (defer) {
2117                 spin_lock_irq(vha->host->host_lock);
2118                 fcport->drport = rport;
2119                 spin_unlock_irq(vha->host->host_lock);
2120                 set_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags);
2121                 qla2xxx_wake_dpc(vha);
2122         } else
2123                 fc_remote_port_delete(rport);
2124 }
2125
2126 /*
2127  * qla2x00_mark_device_lost Updates fcport state when device goes offline.
2128  *
2129  * Input: ha = adapter block pointer.  fcport = port structure pointer.
2130  *
2131  * Return: None.
2132  *
2133  * Context:
2134  */
2135 void qla2x00_mark_device_lost(scsi_qla_host_t *vha, fc_port_t *fcport,
2136     int do_login, int defer)
2137 {
2138         if (atomic_read(&fcport->state) == FCS_ONLINE &&
2139             vha->vp_idx == fcport->vp_idx) {
2140                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2141                 qla2x00_schedule_rport_del(vha, fcport, defer);
2142         }
2143         /*
2144          * We may need to retry the login, so don't change the state of the
2145          * port but do the retries.
2146          */
2147         if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
2148                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2149
2150         if (!do_login)
2151                 return;
2152
2153         if (fcport->login_retry == 0) {
2154                 fcport->login_retry = vha->hw->login_retry_count;
2155                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2156
2157                 DEBUG(printk("scsi(%ld): Port login retry: "
2158                     "%02x%02x%02x%02x%02x%02x%02x%02x, "
2159                     "id = 0x%04x retry cnt=%d\n",
2160                     vha->host_no,
2161                     fcport->port_name[0],
2162                     fcport->port_name[1],
2163                     fcport->port_name[2],
2164                     fcport->port_name[3],
2165                     fcport->port_name[4],
2166                     fcport->port_name[5],
2167                     fcport->port_name[6],
2168                     fcport->port_name[7],
2169                     fcport->loop_id,
2170                     fcport->login_retry));
2171         }
2172 }
2173
2174 /*
2175  * qla2x00_mark_all_devices_lost
2176  *      Updates fcport state when device goes offline.
2177  *
2178  * Input:
2179  *      ha = adapter block pointer.
2180  *      fcport = port structure pointer.
2181  *
2182  * Return:
2183  *      None.
2184  *
2185  * Context:
2186  */
2187 void
2188 qla2x00_mark_all_devices_lost(scsi_qla_host_t *vha, int defer)
2189 {
2190         fc_port_t *fcport;
2191
2192         list_for_each_entry(fcport, &vha->vp_fcports, list) {
2193                 if (vha->vp_idx != fcport->vp_idx)
2194                         continue;
2195                 /*
2196                  * No point in marking the device as lost, if the device is
2197                  * already DEAD.
2198                  */
2199                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
2200                         continue;
2201                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
2202                         atomic_set(&fcport->state, FCS_DEVICE_LOST);
2203                         qla2x00_schedule_rport_del(vha, fcport, defer);
2204                 } else
2205                         atomic_set(&fcport->state, FCS_DEVICE_LOST);
2206         }
2207 }
2208
2209 /*
2210 * qla2x00_mem_alloc
2211 *      Allocates adapter memory.
2212 *
2213 * Returns:
2214 *      0  = success.
2215 *      !0  = failure.
2216 */
2217 static int
2218 qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
2219         struct req_que **req, struct rsp_que **rsp)
2220 {
2221         char    name[16];
2222
2223         ha->init_cb_size = sizeof(init_cb_t);
2224         if (IS_QLA2XXX_MIDTYPE(ha))
2225                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
2226
2227         ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
2228                 &ha->init_cb_dma, GFP_KERNEL);
2229         if (!ha->init_cb)
2230                 goto fail;
2231
2232         ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
2233                 &ha->gid_list_dma, GFP_KERNEL);
2234         if (!ha->gid_list)
2235                 goto fail_free_init_cb;
2236
2237         ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
2238         if (!ha->srb_mempool)
2239                 goto fail_free_gid_list;
2240
2241         /* Get memory for cached NVRAM */
2242         ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
2243         if (!ha->nvram)
2244                 goto fail_free_srb_mempool;
2245
2246         snprintf(name, sizeof(name), "%s_%d", QLA2XXX_DRIVER_NAME,
2247                 ha->pdev->device);
2248         ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2249                 DMA_POOL_SIZE, 8, 0);
2250         if (!ha->s_dma_pool)
2251                 goto fail_free_nvram;
2252
2253         /* Allocate memory for SNS commands */
2254         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2255         /* Get consistent memory allocated for SNS commands */
2256                 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
2257                 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
2258                 if (!ha->sns_cmd)
2259                         goto fail_dma_pool;
2260         } else {
2261         /* Get consistent memory allocated for MS IOCB */
2262                 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2263                         &ha->ms_iocb_dma);
2264                 if (!ha->ms_iocb)
2265                         goto fail_dma_pool;
2266         /* Get consistent memory allocated for CT SNS commands */
2267                 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2268                         sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
2269                 if (!ha->ct_sns)
2270                         goto fail_free_ms_iocb;
2271         }
2272
2273         /* Allocate memory for request ring */
2274         *req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
2275         if (!*req) {
2276                 DEBUG(printk("Unable to allocate memory for req\n"));
2277                 goto fail_req;
2278         }
2279         (*req)->length = req_len;
2280         (*req)->ring = dma_alloc_coherent(&ha->pdev->dev,
2281                 ((*req)->length + 1) * sizeof(request_t),
2282                 &(*req)->dma, GFP_KERNEL);
2283         if (!(*req)->ring) {
2284                 DEBUG(printk("Unable to allocate memory for req_ring\n"));
2285                 goto fail_req_ring;
2286         }
2287         /* Allocate memory for response ring */
2288         *rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
2289         if (!*rsp) {
2290                 qla_printk(KERN_WARNING, ha,
2291                         "Unable to allocate memory for rsp\n");
2292                 goto fail_rsp;
2293         }
2294         (*rsp)->hw = ha;
2295         (*rsp)->length = rsp_len;
2296         (*rsp)->ring = dma_alloc_coherent(&ha->pdev->dev,
2297                 ((*rsp)->length + 1) * sizeof(response_t),
2298                 &(*rsp)->dma, GFP_KERNEL);
2299         if (!(*rsp)->ring) {
2300                 qla_printk(KERN_WARNING, ha,
2301                         "Unable to allocate memory for rsp_ring\n");
2302                 goto fail_rsp_ring;
2303         }
2304         (*req)->rsp = *rsp;
2305         (*rsp)->req = *req;
2306         /* Allocate memory for NVRAM data for vports */
2307         if (ha->nvram_npiv_size) {
2308                 ha->npiv_info = kzalloc(sizeof(struct qla_npiv_entry) *
2309                                         ha->nvram_npiv_size, GFP_KERNEL);
2310                 if (!ha->npiv_info) {
2311                         qla_printk(KERN_WARNING, ha,
2312                                 "Unable to allocate memory for npiv info\n");
2313                         goto fail_npiv_info;
2314                 }
2315         } else
2316                 ha->npiv_info = NULL;
2317
2318         INIT_LIST_HEAD(&ha->vp_list);
2319         return 1;
2320
2321 fail_npiv_info:
2322         dma_free_coherent(&ha->pdev->dev, ((*rsp)->length + 1) *
2323                 sizeof(response_t), (*rsp)->ring, (*rsp)->dma);
2324         (*rsp)->ring = NULL;
2325         (*rsp)->dma = 0;
2326 fail_rsp_ring:
2327         kfree(*rsp);
2328 fail_rsp:
2329         dma_free_coherent(&ha->pdev->dev, ((*req)->length + 1) *
2330                 sizeof(request_t), (*req)->ring, (*req)->dma);
2331         (*req)->ring = NULL;
2332         (*req)->dma = 0;
2333 fail_req_ring:
2334         kfree(*req);
2335 fail_req:
2336         dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2337                 ha->ct_sns, ha->ct_sns_dma);
2338         ha->ct_sns = NULL;
2339         ha->ct_sns_dma = 0;
2340 fail_free_ms_iocb:
2341         dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2342         ha->ms_iocb = NULL;
2343         ha->ms_iocb_dma = 0;
2344 fail_dma_pool:
2345         dma_pool_destroy(ha->s_dma_pool);
2346         ha->s_dma_pool = NULL;
2347 fail_free_nvram:
2348         kfree(ha->nvram);
2349         ha->nvram = NULL;
2350 fail_free_srb_mempool:
2351         mempool_destroy(ha->srb_mempool);
2352         ha->srb_mempool = NULL;
2353 fail_free_gid_list:
2354         dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2355         ha->gid_list_dma);
2356         ha->gid_list = NULL;
2357         ha->gid_list_dma = 0;
2358 fail_free_init_cb:
2359         dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
2360         ha->init_cb_dma);
2361         ha->init_cb = NULL;
2362         ha->init_cb_dma = 0;
2363 fail:
2364         DEBUG(printk("%s: Memory allocation failure\n", __func__));
2365         return -ENOMEM;
2366 }
2367
2368 /*
2369 * qla2x00_mem_free
2370 *      Frees all adapter allocated memory.
2371 *
2372 * Input:
2373 *      ha = adapter block pointer.
2374 */
2375 static void
2376 qla2x00_mem_free(struct qla_hw_data *ha)
2377 {
2378         if (ha->srb_mempool)
2379                 mempool_destroy(ha->srb_mempool);
2380
2381         if (ha->fce)
2382                 dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
2383                 ha->fce_dma);
2384
2385         if (ha->fw_dump) {
2386                 if (ha->eft)
2387                         dma_free_coherent(&ha->pdev->dev,
2388                         ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2389                 vfree(ha->fw_dump);
2390         }
2391
2392         if (ha->sns_cmd)
2393                 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2394                 ha->sns_cmd, ha->sns_cmd_dma);
2395
2396         if (ha->ct_sns)
2397                 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2398                 ha->ct_sns, ha->ct_sns_dma);
2399
2400         if (ha->sfp_data)
2401                 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2402
2403         if (ha->ms_iocb)
2404                 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2405
2406         if (ha->s_dma_pool)
2407                 dma_pool_destroy(ha->s_dma_pool);
2408
2409
2410         if (ha->gid_list)
2411                 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2412                 ha->gid_list_dma);
2413
2414
2415         if (ha->init_cb)
2416                 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
2417                 ha->init_cb, ha->init_cb_dma);
2418         vfree(ha->optrom_buffer);
2419         kfree(ha->nvram);
2420         kfree(ha->npiv_info);
2421
2422         ha->srb_mempool = NULL;
2423         ha->eft = NULL;
2424         ha->eft_dma = 0;
2425         ha->sns_cmd = NULL;
2426         ha->sns_cmd_dma = 0;
2427         ha->ct_sns = NULL;
2428         ha->ct_sns_dma = 0;
2429         ha->ms_iocb = NULL;
2430         ha->ms_iocb_dma = 0;
2431         ha->init_cb = NULL;
2432         ha->init_cb_dma = 0;
2433
2434         ha->s_dma_pool = NULL;
2435
2436         ha->gid_list = NULL;
2437         ha->gid_list_dma = 0;
2438
2439         ha->fw_dump = NULL;
2440         ha->fw_dumped = 0;
2441         ha->fw_dump_reading = 0;
2442 }
2443
2444 struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht,
2445                                                 struct qla_hw_data *ha)
2446 {
2447         struct Scsi_Host *host;
2448         struct scsi_qla_host *vha = NULL;
2449
2450         host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
2451         if (host == NULL) {
2452                 printk(KERN_WARNING
2453                 "qla2xxx: Couldn't allocate host from scsi layer!\n");
2454                 goto fail;
2455         }
2456
2457         /* Clear our data area */
2458         vha = shost_priv(host);
2459         memset(vha, 0, sizeof(scsi_qla_host_t));
2460
2461         vha->host = host;
2462         vha->host_no = host->host_no;
2463         vha->hw = ha;
2464
2465         INIT_LIST_HEAD(&vha->vp_fcports);
2466         INIT_LIST_HEAD(&vha->work_list);
2467         INIT_LIST_HEAD(&vha->list);
2468
2469         sprintf(vha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, vha->host_no);
2470         return vha;
2471
2472 fail:
2473         return vha;
2474 }
2475
2476 static struct qla_work_evt *
2477 qla2x00_alloc_work(struct scsi_qla_host *vha, enum qla_work_type type,
2478     int locked)
2479 {
2480         struct qla_work_evt *e;
2481
2482         e = kzalloc(sizeof(struct qla_work_evt), locked ? GFP_ATOMIC:
2483             GFP_KERNEL);
2484         if (!e)
2485                 return NULL;
2486
2487         INIT_LIST_HEAD(&e->list);
2488         e->type = type;
2489         e->flags = QLA_EVT_FLAG_FREE;
2490         return e;
2491 }
2492
2493 static int
2494 qla2x00_post_work(struct scsi_qla_host *vha, struct qla_work_evt *e, int locked)
2495 {
2496         unsigned long uninitialized_var(flags);
2497         struct qla_hw_data *ha = vha->hw;
2498
2499         if (!locked)
2500                 spin_lock_irqsave(&ha->hardware_lock, flags);
2501         list_add_tail(&e->list, &vha->work_list);
2502         qla2xxx_wake_dpc(vha);
2503         if (!locked)
2504                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2505         return QLA_SUCCESS;
2506 }
2507
2508 int
2509 qla2x00_post_aen_work(struct scsi_qla_host *vha, enum fc_host_event_code code,
2510     u32 data)
2511 {
2512         struct qla_work_evt *e;
2513
2514         e = qla2x00_alloc_work(vha, QLA_EVT_AEN, 1);
2515         if (!e)
2516                 return QLA_FUNCTION_FAILED;
2517
2518         e->u.aen.code = code;
2519         e->u.aen.data = data;
2520         return qla2x00_post_work(vha, e, 1);
2521 }
2522
2523 static void
2524 qla2x00_do_work(struct scsi_qla_host *vha)
2525 {
2526         struct qla_work_evt *e;
2527         struct qla_hw_data *ha = vha->hw;
2528
2529         spin_lock_irq(&ha->hardware_lock);
2530         while (!list_empty(&vha->work_list)) {
2531                 e = list_entry(vha->work_list.next, struct qla_work_evt, list);
2532                 list_del_init(&e->list);
2533                 spin_unlock_irq(&ha->hardware_lock);
2534
2535                 switch (e->type) {
2536                 case QLA_EVT_AEN:
2537                         fc_host_post_event(vha->host, fc_get_event_number(),
2538                             e->u.aen.code, e->u.aen.data);
2539                         break;
2540                 }
2541                 if (e->flags & QLA_EVT_FLAG_FREE)
2542                         kfree(e);
2543                 spin_lock_irq(&ha->hardware_lock);
2544         }
2545         spin_unlock_irq(&ha->hardware_lock);
2546 }
2547 /* Relogins all the fcports of a vport
2548  * Context: dpc thread
2549  */
2550 void qla2x00_relogin(struct scsi_qla_host *vha)
2551 {
2552         fc_port_t       *fcport;
2553         uint8_t         status;
2554         uint16_t        next_loopid = 0;
2555         struct qla_hw_data *ha = vha->hw;
2556
2557         list_for_each_entry(fcport, &vha->vp_fcports, list) {
2558         /*
2559          * If the port is not ONLINE then try to login
2560          * to it if we haven't run out of retries.
2561          */
2562                 if (atomic_read(&fcport->state) !=
2563                         FCS_ONLINE && fcport->login_retry) {
2564
2565                         if (fcport->flags & FCF_FABRIC_DEVICE) {
2566                                 if (fcport->flags & FCF_TAPE_PRESENT)
2567                                         ha->isp_ops->fabric_logout(vha,
2568                                                         fcport->loop_id,
2569                                                         fcport->d_id.b.domain,
2570                                                         fcport->d_id.b.area,
2571                                                         fcport->d_id.b.al_pa);
2572
2573                                 status = qla2x00_fabric_login(vha, fcport,
2574                                                         &next_loopid);
2575                         } else
2576                                 status = qla2x00_local_device_login(vha,
2577                                                                 fcport);
2578
2579                         fcport->login_retry--;
2580                         if (status == QLA_SUCCESS) {
2581                                 fcport->old_loop_id = fcport->loop_id;
2582
2583                                 DEBUG(printk("scsi(%ld): port login OK: logged "
2584                                 "in ID 0x%x\n", vha->host_no, fcport->loop_id));
2585
2586                                 qla2x00_update_fcport(vha, fcport);
2587
2588                         } else if (status == 1) {
2589                                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2590                                 /* retry the login again */
2591                                 DEBUG(printk("scsi(%ld): Retrying"
2592                                 " %d login again loop_id 0x%x\n",
2593                                 vha->host_no, fcport->login_retry,
2594                                                 fcport->loop_id));
2595                         } else {
2596                                 fcport->login_retry = 0;
2597                         }
2598
2599                         if (fcport->login_retry == 0 && status != QLA_SUCCESS)
2600                                 fcport->loop_id = FC_NO_LOOP_ID;
2601                 }
2602                 if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
2603                         break;
2604         }
2605 }
2606
2607 /**************************************************************************
2608 * qla2x00_do_dpc
2609 *   This kernel thread is a task that is schedule by the interrupt handler
2610 *   to perform the background processing for interrupts.
2611 *
2612 * Notes:
2613 * This task always run in the context of a kernel thread.  It
2614 * is kick-off by the driver's detect code and starts up
2615 * up one per adapter. It immediately goes to sleep and waits for
2616 * some fibre event.  When either the interrupt handler or
2617 * the timer routine detects a event it will one of the task
2618 * bits then wake us up.
2619 **************************************************************************/
2620 static int
2621 qla2x00_do_dpc(void *data)
2622 {
2623         int             rval;
2624         scsi_qla_host_t *base_vha;
2625         struct qla_hw_data *ha;
2626
2627         ha = (struct qla_hw_data *)data;
2628         base_vha = pci_get_drvdata(ha->pdev);
2629
2630         set_user_nice(current, -20);
2631
2632         while (!kthread_should_stop()) {
2633                 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2634
2635                 set_current_state(TASK_INTERRUPTIBLE);
2636                 schedule();
2637                 __set_current_state(TASK_RUNNING);
2638
2639                 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2640
2641                 /* Initialization not yet finished. Don't do anything yet. */
2642                 if (!base_vha->flags.init_done)
2643                         continue;
2644
2645                 DEBUG3(printk("scsi(%ld): DPC handler\n", base_vha->host_no));
2646
2647                 ha->dpc_active = 1;
2648
2649                 if (ha->flags.mbox_busy) {
2650                         ha->dpc_active = 0;
2651                         continue;
2652                 }
2653
2654                 qla2x00_do_work(base_vha);
2655
2656                 if (test_and_clear_bit(ISP_ABORT_NEEDED,
2657                                                 &base_vha->dpc_flags)) {
2658
2659                         DEBUG(printk("scsi(%ld): dpc: sched "
2660                             "qla2x00_abort_isp ha = %p\n",
2661                             base_vha->host_no, ha));
2662                         if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2663                             &base_vha->dpc_flags))) {
2664
2665                                 if (qla2x00_abort_isp(base_vha)) {
2666                                         /* failed. retry later */
2667                                         set_bit(ISP_ABORT_NEEDED,
2668                                             &base_vha->dpc_flags);
2669                                 }
2670                                 clear_bit(ABORT_ISP_ACTIVE,
2671                                                 &base_vha->dpc_flags);
2672                         }
2673
2674                         DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2675                             base_vha->host_no));
2676                 }
2677
2678                 if (test_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags)) {
2679                         qla2x00_update_fcports(base_vha);
2680                         clear_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
2681                 }
2682
2683                 if (test_and_clear_bit(RESET_MARKER_NEEDED,
2684                                                         &base_vha->dpc_flags) &&
2685                     (!(test_and_set_bit(RESET_ACTIVE, &base_vha->dpc_flags)))) {
2686
2687                         DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2688                             base_vha->host_no));
2689
2690                         qla2x00_rst_aen(base_vha);
2691                         clear_bit(RESET_ACTIVE, &base_vha->dpc_flags);
2692                 }
2693
2694                 /* Retry each device up to login retry count */
2695                 if ((test_and_clear_bit(RELOGIN_NEEDED,
2696                                                 &base_vha->dpc_flags)) &&
2697                     !test_bit(LOOP_RESYNC_NEEDED, &base_vha->dpc_flags) &&
2698                     atomic_read(&base_vha->loop_state) != LOOP_DOWN) {
2699
2700                         DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2701                                         base_vha->host_no));
2702                         qla2x00_relogin(base_vha);
2703
2704                         DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2705                             base_vha->host_no));
2706                 }
2707
2708                 if (test_and_clear_bit(LOOP_RESYNC_NEEDED,
2709                                                         &base_vha->dpc_flags)) {
2710
2711                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2712                                 base_vha->host_no));
2713
2714                         if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2715                             &base_vha->dpc_flags))) {
2716
2717                                 rval = qla2x00_loop_resync(base_vha);
2718
2719                                 clear_bit(LOOP_RESYNC_ACTIVE,
2720                                                 &base_vha->dpc_flags);
2721                         }
2722
2723                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2724                             base_vha->host_no));
2725                 }
2726
2727                 if (test_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags) &&
2728                     atomic_read(&base_vha->loop_state) == LOOP_READY) {
2729                         clear_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags);
2730                         qla2xxx_flash_npiv_conf(base_vha);
2731                 }
2732
2733                 if (!ha->interrupts_on)
2734                         ha->isp_ops->enable_intrs(ha);
2735
2736                 if (test_and_clear_bit(BEACON_BLINK_NEEDED,
2737                                         &base_vha->dpc_flags))
2738                         ha->isp_ops->beacon_blink(base_vha);
2739
2740                 qla2x00_do_dpc_all_vps(base_vha);
2741
2742                 ha->dpc_active = 0;
2743         } /* End of while(1) */
2744
2745         DEBUG(printk("scsi(%ld): DPC handler exiting\n", base_vha->host_no));
2746
2747         /*
2748          * Make sure that nobody tries to wake us up again.
2749          */
2750         ha->dpc_active = 0;
2751
2752         return 0;
2753 }
2754
2755 void
2756 qla2xxx_wake_dpc(struct scsi_qla_host *vha)
2757 {
2758         struct qla_hw_data *ha = vha->hw;
2759         struct task_struct *t = ha->dpc_thread;
2760
2761         if (!test_bit(UNLOADING, &vha->dpc_flags) && t)
2762                 wake_up_process(t);
2763 }
2764
2765 /*
2766 *  qla2x00_rst_aen
2767 *      Processes asynchronous reset.
2768 *
2769 * Input:
2770 *      ha  = adapter block pointer.
2771 */
2772 static void
2773 qla2x00_rst_aen(scsi_qla_host_t *vha)
2774 {
2775         if (vha->flags.online && !vha->flags.reset_active &&
2776             !atomic_read(&vha->loop_down_timer) &&
2777             !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) {
2778                 do {
2779                         clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
2780
2781                         /*
2782                          * Issue marker command only when we are going to start
2783                          * the I/O.
2784                          */
2785                         vha->marker_needed = 1;
2786                 } while (!atomic_read(&vha->loop_down_timer) &&
2787                     (test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags)));
2788         }
2789 }
2790
2791 static void
2792 qla2x00_sp_free_dma(srb_t *sp)
2793 {
2794         struct scsi_cmnd *cmd = sp->cmd;
2795
2796         if (sp->flags & SRB_DMA_VALID) {
2797                 scsi_dma_unmap(cmd);
2798                 sp->flags &= ~SRB_DMA_VALID;
2799         }
2800         CMD_SP(cmd) = NULL;
2801 }
2802
2803 void
2804 qla2x00_sp_compl(struct qla_hw_data *ha, srb_t *sp)
2805 {
2806         struct scsi_cmnd *cmd = sp->cmd;
2807
2808         qla2x00_sp_free_dma(sp);
2809
2810         mempool_free(sp, ha->srb_mempool);
2811
2812         cmd->scsi_done(cmd);
2813 }
2814
2815 /**************************************************************************
2816 *   qla2x00_timer
2817 *
2818 * Description:
2819 *   One second timer
2820 *
2821 * Context: Interrupt
2822 ***************************************************************************/
2823 void
2824 qla2x00_timer(scsi_qla_host_t *vha)
2825 {
2826         unsigned long   cpu_flags = 0;
2827         fc_port_t       *fcport;
2828         int             start_dpc = 0;
2829         int             index;
2830         srb_t           *sp;
2831         int             t;
2832         struct qla_hw_data *ha = vha->hw;
2833         struct req_que *req;
2834         /*
2835          * Ports - Port down timer.
2836          *
2837          * Whenever, a port is in the LOST state we start decrementing its port
2838          * down timer every second until it reaches zero. Once  it reaches zero
2839          * the port it marked DEAD.
2840          */
2841         t = 0;
2842         list_for_each_entry(fcport, &vha->vp_fcports, list) {
2843                 if (fcport->port_type != FCT_TARGET)
2844                         continue;
2845
2846                 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2847
2848                         if (atomic_read(&fcport->port_down_timer) == 0)
2849                                 continue;
2850
2851                         if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
2852                                 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
2853
2854                         DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
2855                             "%d remaining\n",
2856                             vha->host_no,
2857                             t, atomic_read(&fcport->port_down_timer)));
2858                 }
2859                 t++;
2860         } /* End of for fcport  */
2861
2862
2863         /* Loop down handler. */
2864         if (atomic_read(&vha->loop_down_timer) > 0 &&
2865             !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
2866                 && vha->flags.online) {
2867
2868                 if (atomic_read(&vha->loop_down_timer) ==
2869                     vha->loop_down_abort_time) {
2870
2871                         DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2872                             "queues before time expire\n",
2873                             vha->host_no));
2874
2875                         if (!IS_QLA2100(ha) && vha->link_down_timeout)
2876                                 atomic_set(&vha->loop_state, LOOP_DEAD);
2877
2878                         /* Schedule an ISP abort to return any tape commands. */
2879                         /* NPIV - scan physical port only */
2880                         if (!vha->vp_idx) {
2881                                 spin_lock_irqsave(&ha->hardware_lock,
2882                                     cpu_flags);
2883                                 req = ha->req_q_map[0];
2884                                 for (index = 1;
2885                                     index < MAX_OUTSTANDING_COMMANDS;
2886                                     index++) {
2887                                         fc_port_t *sfcp;
2888
2889                                         sp = req->outstanding_cmds[index];
2890                                         if (!sp)
2891                                                 continue;
2892                                         sfcp = sp->fcport;
2893                                         if (!(sfcp->flags & FCF_TAPE_PRESENT))
2894                                                 continue;
2895
2896                                         set_bit(ISP_ABORT_NEEDED,
2897                                                         &vha->dpc_flags);
2898                                         break;
2899                                 }
2900                                 spin_unlock_irqrestore(&ha->hardware_lock,
2901                                                                 cpu_flags);
2902                         }
2903                         set_bit(ABORT_QUEUES_NEEDED, &vha->dpc_flags);
2904                         start_dpc++;
2905                 }
2906
2907                 /* if the loop has been down for 4 minutes, reinit adapter */
2908                 if (atomic_dec_and_test(&vha->loop_down_timer) != 0) {
2909                         DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2910                             "restarting queues.\n",
2911                             vha->host_no));
2912
2913                         set_bit(RESTART_QUEUES_NEEDED, &vha->dpc_flags);
2914                         start_dpc++;
2915
2916                         if (!(vha->device_flags & DFLG_NO_CABLE) &&
2917                             !vha->vp_idx) {
2918                                 DEBUG(printk("scsi(%ld): Loop down - "
2919                                     "aborting ISP.\n",
2920                                     vha->host_no));
2921                                 qla_printk(KERN_WARNING, ha,
2922                                     "Loop down - aborting ISP.\n");
2923
2924                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2925                         }
2926                 }
2927                 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
2928                     vha->host_no,
2929                     atomic_read(&vha->loop_down_timer)));
2930         }
2931
2932         /* Check if beacon LED needs to be blinked */
2933         if (ha->beacon_blink_led == 1) {
2934                 set_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags);
2935                 start_dpc++;
2936         }
2937
2938         /* Process any deferred work. */
2939         if (!list_empty(&vha->work_list))
2940                 start_dpc++;
2941
2942         /* Schedule the DPC routine if needed */
2943         if ((test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
2944             test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) ||
2945             test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags) ||
2946             start_dpc ||
2947             test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) ||
2948             test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags) ||
2949             test_bit(VP_DPC_NEEDED, &vha->dpc_flags) ||
2950             test_bit(RELOGIN_NEEDED, &vha->dpc_flags)))
2951                 qla2xxx_wake_dpc(vha);
2952
2953         qla2x00_restart_timer(vha, WATCH_INTERVAL);
2954 }
2955
2956 /* Firmware interface routines. */
2957
2958 #define FW_BLOBS        7
2959 #define FW_ISP21XX      0
2960 #define FW_ISP22XX      1
2961 #define FW_ISP2300      2
2962 #define FW_ISP2322      3
2963 #define FW_ISP24XX      4
2964 #define FW_ISP25XX      5
2965 #define FW_ISP81XX      6
2966
2967 #define FW_FILE_ISP21XX "ql2100_fw.bin"
2968 #define FW_FILE_ISP22XX "ql2200_fw.bin"
2969 #define FW_FILE_ISP2300 "ql2300_fw.bin"
2970 #define FW_FILE_ISP2322 "ql2322_fw.bin"
2971 #define FW_FILE_ISP24XX "ql2400_fw.bin"
2972 #define FW_FILE_ISP25XX "ql2500_fw.bin"
2973 #define FW_FILE_ISP81XX "ql8100_fw.bin"
2974
2975 static DEFINE_MUTEX(qla_fw_lock);
2976
2977 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
2978         { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
2979         { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
2980         { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
2981         { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
2982         { .name = FW_FILE_ISP24XX, },
2983         { .name = FW_FILE_ISP25XX, },
2984         { .name = FW_FILE_ISP81XX, },
2985 };
2986
2987 struct fw_blob *
2988 qla2x00_request_firmware(scsi_qla_host_t *vha)
2989 {
2990         struct qla_hw_data *ha = vha->hw;
2991         struct fw_blob *blob;
2992
2993         blob = NULL;
2994         if (IS_QLA2100(ha)) {
2995                 blob = &qla_fw_blobs[FW_ISP21XX];
2996         } else if (IS_QLA2200(ha)) {
2997                 blob = &qla_fw_blobs[FW_ISP22XX];
2998         } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
2999                 blob = &qla_fw_blobs[FW_ISP2300];
3000         } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
3001                 blob = &qla_fw_blobs[FW_ISP2322];
3002         } else if (IS_QLA24XX_TYPE(ha)) {
3003                 blob = &qla_fw_blobs[FW_ISP24XX];
3004         } else if (IS_QLA25XX(ha)) {
3005                 blob = &qla_fw_blobs[FW_ISP25XX];
3006         } else if (IS_QLA81XX(ha)) {
3007                 blob = &qla_fw_blobs[FW_ISP81XX];
3008         }
3009
3010         mutex_lock(&qla_fw_lock);
3011         if (blob->fw)
3012                 goto out;
3013
3014         if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
3015                 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
3016                     "(%s).\n", vha->host_no, blob->name));
3017                 blob->fw = NULL;
3018                 blob = NULL;
3019                 goto out;
3020         }
3021
3022 out:
3023         mutex_unlock(&qla_fw_lock);
3024         return blob;
3025 }
3026
3027 static void
3028 qla2x00_release_firmware(void)
3029 {
3030         int idx;
3031
3032         mutex_lock(&qla_fw_lock);
3033         for (idx = 0; idx < FW_BLOBS; idx++)
3034                 if (qla_fw_blobs[idx].fw)
3035                         release_firmware(qla_fw_blobs[idx].fw);
3036         mutex_unlock(&qla_fw_lock);
3037 }
3038
3039 static pci_ers_result_t
3040 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
3041 {
3042         switch (state) {
3043         case pci_channel_io_normal:
3044                 return PCI_ERS_RESULT_CAN_RECOVER;
3045         case pci_channel_io_frozen:
3046                 pci_disable_device(pdev);
3047                 return PCI_ERS_RESULT_NEED_RESET;
3048         case pci_channel_io_perm_failure:
3049                 qla2x00_remove_one(pdev);
3050                 return PCI_ERS_RESULT_DISCONNECT;
3051         }
3052         return PCI_ERS_RESULT_NEED_RESET;
3053 }
3054
3055 static pci_ers_result_t
3056 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
3057 {
3058         int risc_paused = 0;
3059         uint32_t stat;
3060         unsigned long flags;
3061         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3062         struct qla_hw_data *ha = base_vha->hw;
3063         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3064         struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
3065
3066         spin_lock_irqsave(&ha->hardware_lock, flags);
3067         if (IS_QLA2100(ha) || IS_QLA2200(ha)){
3068                 stat = RD_REG_DWORD(&reg->hccr);
3069                 if (stat & HCCR_RISC_PAUSE)
3070                         risc_paused = 1;
3071         } else if (IS_QLA23XX(ha)) {
3072                 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
3073                 if (stat & HSR_RISC_PAUSED)
3074                         risc_paused = 1;
3075         } else if (IS_FWI2_CAPABLE(ha)) {
3076                 stat = RD_REG_DWORD(&reg24->host_status);
3077                 if (stat & HSRX_RISC_PAUSED)
3078                         risc_paused = 1;
3079         }
3080         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3081
3082         if (risc_paused) {
3083                 qla_printk(KERN_INFO, ha, "RISC paused -- mmio_enabled, "
3084                     "Dumping firmware!\n");
3085                 ha->isp_ops->fw_dump(base_vha, 0);
3086
3087                 return PCI_ERS_RESULT_NEED_RESET;
3088         } else
3089                 return PCI_ERS_RESULT_RECOVERED;
3090 }
3091
3092 static pci_ers_result_t
3093 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
3094 {
3095         pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
3096         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3097         struct qla_hw_data *ha = base_vha->hw;
3098         int rc;
3099
3100         if (ha->mem_only)
3101                 rc = pci_enable_device_mem(pdev);
3102         else
3103                 rc = pci_enable_device(pdev);
3104
3105         if (rc) {
3106                 qla_printk(KERN_WARNING, ha,
3107                     "Can't re-enable PCI device after reset.\n");
3108
3109                 return ret;
3110         }
3111         pci_set_master(pdev);
3112
3113         if (ha->isp_ops->pci_config(base_vha))
3114                 return ret;
3115
3116         set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
3117         if (qla2x00_abort_isp(base_vha) == QLA_SUCCESS)
3118                 ret =  PCI_ERS_RESULT_RECOVERED;
3119         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
3120
3121         return ret;
3122 }
3123
3124 static void
3125 qla2xxx_pci_resume(struct pci_dev *pdev)
3126 {
3127         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3128         struct qla_hw_data *ha = base_vha->hw;
3129         int ret;
3130
3131         ret = qla2x00_wait_for_hba_online(base_vha);
3132         if (ret != QLA_SUCCESS) {
3133                 qla_printk(KERN_ERR, ha,
3134                     "the device failed to resume I/O "
3135                     "from slot/link_reset");
3136         }
3137         pci_cleanup_aer_uncorrect_error_status(pdev);
3138 }
3139
3140 static struct pci_error_handlers qla2xxx_err_handler = {
3141         .error_detected = qla2xxx_pci_error_detected,
3142         .mmio_enabled = qla2xxx_pci_mmio_enabled,
3143         .slot_reset = qla2xxx_pci_slot_reset,
3144         .resume = qla2xxx_pci_resume,
3145 };
3146
3147 static struct pci_device_id qla2xxx_pci_tbl[] = {
3148         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
3149         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
3150         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
3151         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
3152         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
3153         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
3154         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
3155         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
3156         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
3157         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) },
3158         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
3159         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
3160         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
3161         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8001) },
3162         { 0 },
3163 };
3164 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
3165
3166 static struct pci_driver qla2xxx_pci_driver = {
3167         .name           = QLA2XXX_DRIVER_NAME,
3168         .driver         = {
3169                 .owner          = THIS_MODULE,
3170         },
3171         .id_table       = qla2xxx_pci_tbl,
3172         .probe          = qla2x00_probe_one,
3173         .remove         = qla2x00_remove_one,
3174         .err_handler    = &qla2xxx_err_handler,
3175 };
3176
3177 /**
3178  * qla2x00_module_init - Module initialization.
3179  **/
3180 static int __init
3181 qla2x00_module_init(void)
3182 {
3183         int ret = 0;
3184
3185         /* Allocate cache for SRBs. */
3186         srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
3187             SLAB_HWCACHE_ALIGN, NULL);
3188         if (srb_cachep == NULL) {
3189                 printk(KERN_ERR
3190                     "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
3191                 return -ENOMEM;
3192         }
3193
3194         /* Derive version string. */
3195         strcpy(qla2x00_version_str, QLA2XXX_VERSION);
3196         if (ql2xextended_error_logging)
3197                 strcat(qla2x00_version_str, "-debug");
3198
3199         qla2xxx_transport_template =
3200             fc_attach_transport(&qla2xxx_transport_functions);
3201         if (!qla2xxx_transport_template) {
3202                 kmem_cache_destroy(srb_cachep);
3203                 return -ENODEV;
3204         }
3205         qla2xxx_transport_vport_template =
3206             fc_attach_transport(&qla2xxx_transport_vport_functions);
3207         if (!qla2xxx_transport_vport_template) {
3208                 kmem_cache_destroy(srb_cachep);
3209                 fc_release_transport(qla2xxx_transport_template);
3210                 return -ENODEV;
3211         }
3212
3213         printk(KERN_INFO "QLogic Fibre Channel HBA Driver: %s\n",
3214             qla2x00_version_str);
3215         ret = pci_register_driver(&qla2xxx_pci_driver);
3216         if (ret) {
3217                 kmem_cache_destroy(srb_cachep);
3218                 fc_release_transport(qla2xxx_transport_template);
3219                 fc_release_transport(qla2xxx_transport_vport_template);
3220         }
3221         return ret;
3222 }
3223
3224 /**
3225  * qla2x00_module_exit - Module cleanup.
3226  **/
3227 static void __exit
3228 qla2x00_module_exit(void)
3229 {
3230         pci_unregister_driver(&qla2xxx_pci_driver);
3231         qla2x00_release_firmware();
3232         kmem_cache_destroy(srb_cachep);
3233         fc_release_transport(qla2xxx_transport_template);
3234         fc_release_transport(qla2xxx_transport_vport_template);
3235 }
3236
3237 module_init(qla2x00_module_init);
3238 module_exit(qla2x00_module_exit);
3239
3240 MODULE_AUTHOR("QLogic Corporation");
3241 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
3242 MODULE_LICENSE("GPL");
3243 MODULE_VERSION(QLA2XXX_VERSION);
3244 MODULE_FIRMWARE(FW_FILE_ISP21XX);
3245 MODULE_FIRMWARE(FW_FILE_ISP22XX);
3246 MODULE_FIRMWARE(FW_FILE_ISP2300);
3247 MODULE_FIRMWARE(FW_FILE_ISP2322);
3248 MODULE_FIRMWARE(FW_FILE_ISP24XX);
3249 MODULE_FIRMWARE(FW_FILE_ISP25XX);
3250 MODULE_FIRMWARE(FW_FILE_ISP81XX);