drivers/scsi/qla2xxx/qla_init.c

   1 /*
   2  * QLogic Fibre Channel HBA Driver
   3  * Copyright (c)  2003-2010 QLogic Corporation
   4  *
   5  * See LICENSE.qla2xxx for copyright and licensing details.
   6  */
   7 #include "qla_def.h"
   8 #include "qla_gbl.h"
   9
  10 #include <linux/delay.h>
  11 #include <linux/slab.h>
  12 #include <linux/vmalloc.h>
  13
  14 #include "qla_devtbl.h"
  15
  16 #ifdef CONFIG_SPARC
  17 #include <asm/prom.h>
  18 #endif
  19
  20 /*
  21 *  QLogic ISP2x00 Hardware Support Function Prototypes.
  22 */
  23 static int qla2x00_isp_firmware(scsi_qla_host_t *);
  24 static int qla2x00_setup_chip(scsi_qla_host_t *);
  25 static int qla2x00_init_rings(scsi_qla_host_t *);
  26 static int qla2x00_fw_ready(scsi_qla_host_t *);
  27 static int qla2x00_configure_hba(scsi_qla_host_t *);
  28 static int qla2x00_configure_loop(scsi_qla_host_t *);
  29 static int qla2x00_configure_local_loop(scsi_qla_host_t *);
  30 static int qla2x00_configure_fabric(scsi_qla_host_t *);
  31 static int qla2x00_find_all_fabric_devs(scsi_qla_host_t *, struct list_head *);
  32 static int qla2x00_device_resync(scsi_qla_host_t *);
  33 static int qla2x00_fabric_dev_login(scsi_qla_host_t *, fc_port_t *,
  34     uint16_t *);
  35
  36 static int qla2x00_restart_isp(scsi_qla_host_t *);
  37
  38 static int qla2x00_find_new_loop_id(scsi_qla_host_t *, fc_port_t *);
  39
  40 static struct qla_chip_state_84xx *qla84xx_get_chip(struct scsi_qla_host *);
  41 static int qla84xx_init_chip(scsi_qla_host_t *);
  42 static int qla25xx_init_queues(struct qla_hw_data *);
  43
  44 /* SRB Extensions ---------------------------------------------------------- */
  45
  46 static void
  47 qla2x00_ctx_sp_timeout(unsigned long __data)
  48 {
  49         srb_t *sp = (srb_t *)__data;
  50         struct srb_ctx *ctx;
  51         struct srb_iocb *iocb;
  52         fc_port_t *fcport = sp->fcport;
  53         struct qla_hw_data *ha = fcport->vha->hw;
  54         struct req_que *req;
  55         unsigned long flags;
  56
  57         spin_lock_irqsave(&ha->hardware_lock, flags);
  58         req = ha->req_q_map[0];
  59         req->outstanding_cmds[sp->handle] = NULL;
  60         ctx = sp->ctx;
  61         iocb = ctx->u.iocb_cmd;
  62         iocb->timeout(sp);
  63         iocb->free(sp);
  64         spin_unlock_irqrestore(&ha->hardware_lock, flags);
  65 }
  66
  67 static void
  68 qla2x00_ctx_sp_free(srb_t *sp)
  69 {
  70         struct srb_ctx *ctx = sp->ctx;
  71         struct srb_iocb *iocb = ctx->u.iocb_cmd;
  72         struct scsi_qla_host *vha = sp->fcport->vha;
  73
  74         del_timer_sync(&iocb->timer);
  75         kfree(iocb);
  76         kfree(ctx);
  77         mempool_free(sp, sp->fcport->vha->hw->srb_mempool);
  78
  79         QLA_VHA_MARK_NOT_BUSY(vha);
  80 }
  81
  82 inline srb_t *
  83 qla2x00_get_ctx_sp(scsi_qla_host_t *vha, fc_port_t *fcport, size_t size,
  84     unsigned long tmo)
  85 {
  86         srb_t *sp = NULL;
  87         struct qla_hw_data *ha = vha->hw;
  88         struct srb_ctx *ctx;
  89         struct srb_iocb *iocb;
  90         uint8_t bail;
  91
  92         QLA_VHA_MARK_BUSY(vha, bail);
  93         if (bail)
  94                 return NULL;
  95
  96         sp = mempool_alloc(ha->srb_mempool, GFP_KERNEL);
  97         if (!sp)
  98                 goto done;
  99         ctx = kzalloc(size, GFP_KERNEL);
 100         if (!ctx) {
 101                 mempool_free(sp, ha->srb_mempool);
 102                 sp = NULL;
 103                 goto done;
 104         }
 105         iocb = kzalloc(sizeof(struct srb_iocb), GFP_KERNEL);
 106         if (!iocb) {
 107                 mempool_free(sp, ha->srb_mempool);
 108                 sp = NULL;
 109                 kfree(ctx);
 110                 goto done;
 111         }
 112
 113         memset(sp, 0, sizeof(*sp));
 114         sp->fcport = fcport;
 115         sp->ctx = ctx;
 116         ctx->u.iocb_cmd = iocb;
 117         iocb->free = qla2x00_ctx_sp_free;
 118
 119         init_timer(&iocb->timer);
 120         if (!tmo)
 121                 goto done;
 122         iocb->timer.expires = jiffies + tmo * HZ;
 123         iocb->timer.data = (unsigned long)sp;
 124         iocb->timer.function = qla2x00_ctx_sp_timeout;
 125         add_timer(&iocb->timer);
 126 done:
 127         if (!sp)
 128                 QLA_VHA_MARK_NOT_BUSY(vha);
 129         return sp;
 130 }
 131
 132 /* Asynchronous Login/Logout Routines -------------------------------------- */
 133
 134 static inline unsigned long
 135 qla2x00_get_async_timeout(struct scsi_qla_host *vha)
 136 {
 137         unsigned long tmo;
 138         struct qla_hw_data *ha = vha->hw;
 139
 140         /* Firmware should use switch negotiated r_a_tov for timeout. */
 141         tmo = ha->r_a_tov / 10 * 2;
 142         if (!IS_FWI2_CAPABLE(ha)) {
 143                 /*
 144                  * Except for earlier ISPs where the timeout is seeded from the
 145                  * initialization control block.
 146                  */
 147                 tmo = ha->login_timeout;
 148         }
 149         return tmo;
 150 }
 151
 152 static void
 153 qla2x00_async_iocb_timeout(srb_t *sp)
 154 {
 155         fc_port_t *fcport = sp->fcport;
 156         struct srb_ctx *ctx = sp->ctx;
 157
 158         DEBUG2(printk(KERN_WARNING
 159                 "scsi(%ld:%x): Async-%s timeout - portid=%02x%02x%02x.\n",
 160                 fcport->vha->host_no, sp->handle,
 161                 ctx->name, fcport->d_id.b.domain,
 162                 fcport->d_id.b.area, fcport->d_id.b.al_pa));
 163
 164         fcport->flags &= ~FCF_ASYNC_SENT;
 165         if (ctx->type == SRB_LOGIN_CMD) {
 166                 struct srb_iocb *lio = ctx->u.iocb_cmd;
 167                 qla2x00_post_async_logout_work(fcport->vha, fcport, NULL);
 168                 /* Retry as needed. */
 169                 lio->u.logio.data[0] = MBS_COMMAND_ERROR;
 170                 lio->u.logio.data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
 171                         QLA_LOGIO_LOGIN_RETRIED : 0;
 172                 qla2x00_post_async_login_done_work(fcport->vha, fcport,
 173                         lio->u.logio.data);
 174         }
 175 }
 176
 177 static void
 178 qla2x00_async_login_ctx_done(srb_t *sp)
 179 {
 180         struct srb_ctx *ctx = sp->ctx;
 181         struct srb_iocb *lio = ctx->u.iocb_cmd;
 182
 183         qla2x00_post_async_login_done_work(sp->fcport->vha, sp->fcport,
 184                 lio->u.logio.data);
 185         lio->free(sp);
 186 }
 187
 188 int
 189 qla2x00_async_login(struct scsi_qla_host *vha, fc_port_t *fcport,
 190     uint16_t *data)
 191 {
 192         srb_t *sp;
 193         struct srb_ctx *ctx;
 194         struct srb_iocb *lio;
 195         int rval;
 196
 197         rval = QLA_FUNCTION_FAILED;
 198         sp = qla2x00_get_ctx_sp(vha, fcport, sizeof(struct srb_ctx),
 199             qla2x00_get_async_timeout(vha) + 2);
 200         if (!sp)
 201                 goto done;
 202
 203         ctx = sp->ctx;
 204         ctx->type = SRB_LOGIN_CMD;
 205         ctx->name = "login";
 206         lio = ctx->u.iocb_cmd;
 207         lio->timeout = qla2x00_async_iocb_timeout;
 208         lio->done = qla2x00_async_login_ctx_done;
 209         lio->u.logio.flags |= SRB_LOGIN_COND_PLOGI;
 210         if (data[1] & QLA_LOGIO_LOGIN_RETRIED)
 211                 lio->u.logio.flags |= SRB_LOGIN_RETRIED;
 212         rval = qla2x00_start_sp(sp);
 213         if (rval != QLA_SUCCESS)
 214                 goto done_free_sp;
 215
 216         DEBUG2(printk(KERN_DEBUG
 217             "scsi(%ld:%x): Async-login - loop-id=%x portid=%02x%02x%02x "
 218             "retries=%d.\n", fcport->vha->host_no, sp->handle, fcport->loop_id,
 219             fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa,
 220             fcport->login_retry));
 221         return rval;
 222
 223 done_free_sp:
 224         lio->free(sp);
 225 done:
 226         return rval;
 227 }
 228
 229 static void
 230 qla2x00_async_logout_ctx_done(srb_t *sp)
 231 {
 232         struct srb_ctx *ctx = sp->ctx;
 233         struct srb_iocb *lio = ctx->u.iocb_cmd;
 234
 235         qla2x00_post_async_logout_done_work(sp->fcport->vha, sp->fcport,
 236             lio->u.logio.data);
 237         lio->free(sp);
 238 }
 239
 240 int
 241 qla2x00_async_logout(struct scsi_qla_host *vha, fc_port_t *fcport)
 242 {
 243         srb_t *sp;
 244         struct srb_ctx *ctx;
 245         struct srb_iocb *lio;
 246         int rval;
 247
 248         rval = QLA_FUNCTION_FAILED;
 249         sp = qla2x00_get_ctx_sp(vha, fcport, sizeof(struct srb_ctx),
 250             qla2x00_get_async_timeout(vha) + 2);
 251         if (!sp)
 252                 goto done;
 253
 254         ctx = sp->ctx;
 255         ctx->type = SRB_LOGOUT_CMD;
 256         ctx->name = "logout";
 257         lio = ctx->u.iocb_cmd;
 258         lio->timeout = qla2x00_async_iocb_timeout;
 259         lio->done = qla2x00_async_logout_ctx_done;
 260         rval = qla2x00_start_sp(sp);
 261         if (rval != QLA_SUCCESS)
 262                 goto done_free_sp;
 263
 264         DEBUG2(printk(KERN_DEBUG
 265             "scsi(%ld:%x): Async-logout - loop-id=%x portid=%02x%02x%02x.\n",
 266             fcport->vha->host_no, sp->handle, fcport->loop_id,
 267             fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa));
 268         return rval;
 269
 270 done_free_sp:
 271         lio->free(sp);
 272 done:
 273         return rval;
 274 }
 275
 276 static void
 277 qla2x00_async_adisc_ctx_done(srb_t *sp)
 278 {
 279         struct srb_ctx *ctx = sp->ctx;
 280         struct srb_iocb *lio = ctx->u.iocb_cmd;
 281
 282         qla2x00_post_async_adisc_done_work(sp->fcport->vha, sp->fcport,
 283             lio->u.logio.data);
 284         lio->free(sp);
 285 }
 286
 287 int
 288 qla2x00_async_adisc(struct scsi_qla_host *vha, fc_port_t *fcport,
 289     uint16_t *data)
 290 {
 291         srb_t *sp;
 292         struct srb_ctx *ctx;
 293         struct srb_iocb *lio;
 294         int rval;
 295
 296         rval = QLA_FUNCTION_FAILED;
 297         sp = qla2x00_get_ctx_sp(vha, fcport, sizeof(struct srb_ctx),
 298             qla2x00_get_async_timeout(vha) + 2);
 299         if (!sp)
 300                 goto done;
 301
 302         ctx = sp->ctx;
 303         ctx->type = SRB_ADISC_CMD;
 304         ctx->name = "adisc";
 305         lio = ctx->u.iocb_cmd;
 306         lio->timeout = qla2x00_async_iocb_timeout;
 307         lio->done = qla2x00_async_adisc_ctx_done;
 308         if (data[1] & QLA_LOGIO_LOGIN_RETRIED)
 309                 lio->u.logio.flags |= SRB_LOGIN_RETRIED;
 310         rval = qla2x00_start_sp(sp);
 311         if (rval != QLA_SUCCESS)
 312                 goto done_free_sp;
 313
 314         DEBUG2(printk(KERN_DEBUG
 315             "scsi(%ld:%x): Async-adisc - loop-id=%x portid=%02x%02x%02x.\n",
 316             fcport->vha->host_no, sp->handle, fcport->loop_id,
 317             fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa));
 318
 319         return rval;
 320
 321 done_free_sp:
 322         lio->free(sp);
 323 done:
 324         return rval;
 325 }
 326
 327 static void
 328 qla2x00_async_tm_cmd_ctx_done(srb_t *sp)
 329 {
 330         struct srb_ctx *ctx = sp->ctx;
 331         struct srb_iocb *iocb = (struct srb_iocb *)ctx->u.iocb_cmd;
 332
 333         qla2x00_async_tm_cmd_done(sp->fcport->vha, sp->fcport, iocb);
 334         iocb->free(sp);
 335 }
 336
 337 int
 338 qla2x00_async_tm_cmd(fc_port_t *fcport, uint32_t flags, uint32_t lun,
 339         uint32_t tag)
 340 {
 341         struct scsi_qla_host *vha = fcport->vha;
 342         srb_t *sp;
 343         struct srb_ctx *ctx;
 344         struct srb_iocb *tcf;
 345         int rval;
 346
 347         rval = QLA_FUNCTION_FAILED;
 348         sp = qla2x00_get_ctx_sp(vha, fcport, sizeof(struct srb_ctx),
 349             qla2x00_get_async_timeout(vha) + 2);
 350         if (!sp)
 351                 goto done;
 352
 353         ctx = sp->ctx;
 354         ctx->type = SRB_TM_CMD;
 355         ctx->name = "tmf";
 356         tcf = ctx->u.iocb_cmd;
 357         tcf->u.tmf.flags = flags;
 358         tcf->u.tmf.lun = lun;
 359         tcf->u.tmf.data = tag;
 360         tcf->timeout = qla2x00_async_iocb_timeout;
 361         tcf->done = qla2x00_async_tm_cmd_ctx_done;
 362
 363         rval = qla2x00_start_sp(sp);
 364         if (rval != QLA_SUCCESS)
 365                 goto done_free_sp;
 366
 367         DEBUG2(printk(KERN_DEBUG
 368             "scsi(%ld:%x): Async-tmf - loop-id=%x portid=%02x%02x%02x.\n",
 369             fcport->vha->host_no, sp->handle, fcport->loop_id,
 370             fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa));
 371
 372         return rval;
 373
 374 done_free_sp:
 375         tcf->free(sp);
 376 done:
 377         return rval;
 378 }
 379
 380 void
 381 qla2x00_async_login_done(struct scsi_qla_host *vha, fc_port_t *fcport,
 382     uint16_t *data)
 383 {
 384         int rval;
 385
 386         switch (data[0]) {
 387         case MBS_COMMAND_COMPLETE:
 388                 if (fcport->flags & FCF_FCP2_DEVICE) {
 389                         fcport->flags |= FCF_ASYNC_SENT;
 390                         qla2x00_post_async_adisc_work(vha, fcport, data);
 391                         break;
 392                 }
 393                 qla2x00_update_fcport(vha, fcport);
 394                 break;
 395         case MBS_COMMAND_ERROR:
 396                 fcport->flags &= ~FCF_ASYNC_SENT;
 397                 if (data[1] & QLA_LOGIO_LOGIN_RETRIED)
 398                         set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
 399                 else
 400                         qla2x00_mark_device_lost(vha, fcport, 1, 1);
 401                 break;
 402         case MBS_PORT_ID_USED:
 403                 fcport->loop_id = data[1];
 404                 qla2x00_post_async_logout_work(vha, fcport, NULL);
 405                 qla2x00_post_async_login_work(vha, fcport, NULL);
 406                 break;
 407         case MBS_LOOP_ID_USED:
 408                 fcport->loop_id++;
 409                 rval = qla2x00_find_new_loop_id(vha, fcport);
 410                 if (rval != QLA_SUCCESS) {
 411                         fcport->flags &= ~FCF_ASYNC_SENT;
 412                         qla2x00_mark_device_lost(vha, fcport, 1, 1);
 413                         break;
 414                 }
 415                 qla2x00_post_async_login_work(vha, fcport, NULL);
 416                 break;
 417         }
 418         return;
 419 }
 420
 421 void
 422 qla2x00_async_logout_done(struct scsi_qla_host *vha, fc_port_t *fcport,
 423     uint16_t *data)
 424 {
 425         qla2x00_mark_device_lost(vha, fcport, 1, 0);
 426         return;
 427 }
 428
 429 void
 430 qla2x00_async_adisc_done(struct scsi_qla_host *vha, fc_port_t *fcport,
 431     uint16_t *data)
 432 {
 433         if (data[0] == MBS_COMMAND_COMPLETE) {
 434                 qla2x00_update_fcport(vha, fcport);
 435
 436                 return;
 437         }
 438
 439         /* Retry login. */
 440         fcport->flags &= ~FCF_ASYNC_SENT;
 441         if (data[1] & QLA_LOGIO_LOGIN_RETRIED)
 442                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
 443         else
 444                 qla2x00_mark_device_lost(vha, fcport, 1, 1);
 445
 446         return;
 447 }
 448
 449 void
 450 qla2x00_async_tm_cmd_done(struct scsi_qla_host *vha, fc_port_t *fcport,
 451     struct srb_iocb *iocb)
 452 {
 453         int rval;
 454         uint32_t flags;
 455         uint16_t lun;
 456
 457         flags = iocb->u.tmf.flags;
 458         lun = (uint16_t)iocb->u.tmf.lun;
 459
 460         /* Issue Marker IOCB */
 461         rval = qla2x00_marker(vha, vha->hw->req_q_map[0],
 462                 vha->hw->rsp_q_map[0], fcport->loop_id, lun,
 463                 flags == TCF_LUN_RESET ? MK_SYNC_ID_LUN : MK_SYNC_ID);
 464
 465         if ((rval != QLA_SUCCESS) || iocb->u.tmf.data) {
 466                 DEBUG2_3_11(printk(KERN_WARNING
 467                         "%s(%ld): TM IOCB failed (%x).\n",
 468                         __func__, vha->host_no, rval));
 469         }
 470
 471         return;
 472 }
 473
 474 /****************************************************************************/
 475 /*                QLogic ISP2x00 Hardware Support Functions.                */
 476 /****************************************************************************/
 477
 478 /*
 479 * qla2x00_initialize_adapter
 480 *      Initialize board.
 481 *
 482 * Input:
 483 *      ha = adapter block pointer.
 484 *
 485 * Returns:
 486 *      0 = success
 487 */
 488 int
 489 qla2x00_initialize_adapter(scsi_qla_host_t *vha)
 490 {
 491         int     rval;
 492         struct qla_hw_data *ha = vha->hw;
 493         struct req_que *req = ha->req_q_map[0];
 494
 495         /* Clear adapter flags. */
 496         vha->flags.online = 0;
 497         ha->flags.chip_reset_done = 0;
 498         vha->flags.reset_active = 0;
 499         ha->flags.pci_channel_io_perm_failure = 0;
 500         ha->flags.eeh_busy = 0;
 501         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
 502         atomic_set(&vha->loop_state, LOOP_DOWN);
 503         vha->device_flags = DFLG_NO_CABLE;
 504         vha->dpc_flags = 0;
 505         vha->flags.management_server_logged_in = 0;
 506         vha->marker_needed = 0;
 507         ha->isp_abort_cnt = 0;
 508         ha->beacon_blink_led = 0;
 509
 510         set_bit(0, ha->req_qid_map);
 511         set_bit(0, ha->rsp_qid_map);
 512
 513         qla_printk(KERN_INFO, ha, "Configuring PCI space...\n");
 514         rval = ha->isp_ops->pci_config(vha);
 515         if (rval) {
 516                 DEBUG2(printk("scsi(%ld): Unable to configure PCI space.\n",
 517                     vha->host_no));
 518                 return (rval);
 519         }
 520
 521         ha->isp_ops->reset_chip(vha);
 522
 523         rval = qla2xxx_get_flash_info(vha);
 524         if (rval) {
 525                 DEBUG2(printk("scsi(%ld): Unable to validate FLASH data.\n",
 526                     vha->host_no));
 527                 return (rval);
 528         }
 529
 530         ha->isp_ops->get_flash_version(vha, req->ring);
 531
 532         qla_printk(KERN_INFO, ha, "Configure NVRAM parameters...\n");
 533
 534         ha->isp_ops->nvram_config(vha);
 535
 536         if (ha->flags.disable_serdes) {
 537                 /* Mask HBA via NVRAM settings? */
 538                 qla_printk(KERN_INFO, ha, "Masking HBA WWPN "
 539                     "%02x%02x%02x%02x%02x%02x%02x%02x (via NVRAM).\n",
 540                     vha->port_name[0], vha->port_name[1],
 541                     vha->port_name[2], vha->port_name[3],
 542                     vha->port_name[4], vha->port_name[5],
 543                     vha->port_name[6], vha->port_name[7]);
 544                 return QLA_FUNCTION_FAILED;
 545         }
 546
 547         qla_printk(KERN_INFO, ha, "Verifying loaded RISC code...\n");
 548
 549         if (qla2x00_isp_firmware(vha) != QLA_SUCCESS) {
 550                 rval = ha->isp_ops->chip_diag(vha);
 551                 if (rval)
 552                         return (rval);
 553                 rval = qla2x00_setup_chip(vha);
 554                 if (rval)
 555                         return (rval);
 556         }
 557
 558         if (IS_QLA84XX(ha)) {
 559                 ha->cs84xx = qla84xx_get_chip(vha);
 560                 if (!ha->cs84xx) {
 561                         qla_printk(KERN_ERR, ha,
 562                             "Unable to configure ISP84XX.\n");
 563                         return QLA_FUNCTION_FAILED;
 564                 }
 565         }
 566         rval = qla2x00_init_rings(vha);
 567         ha->flags.chip_reset_done = 1;
 568
 569         if (rval == QLA_SUCCESS && IS_QLA84XX(ha)) {
 570                 /* Issue verify 84xx FW IOCB to complete 84xx initialization */
 571                 rval = qla84xx_init_chip(vha);
 572                 if (rval != QLA_SUCCESS) {
 573                         qla_printk(KERN_ERR, ha,
 574                                 "Unable to initialize ISP84XX.\n");
 575                 qla84xx_put_chip(vha);
 576                 }
 577         }
 578
 579         if (IS_QLA24XX_TYPE(ha) || IS_QLA25XX(ha))
 580                 qla24xx_read_fcp_prio_cfg(vha);
 581
 582         return (rval);
 583 }
 584
 585 /**
 586  * qla2100_pci_config() - Setup ISP21xx PCI configuration registers.
 587  * @ha: HA context
 588  *
 589  * Returns 0 on success.
 590  */
 591 int
 592 qla2100_pci_config(scsi_qla_host_t *vha)
 593 {
 594         uint16_t w;
 595         unsigned long flags;
 596         struct qla_hw_data *ha = vha->hw;
 597         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 598
 599         pci_set_master(ha->pdev);
 600         pci_try_set_mwi(ha->pdev);
 601
 602         pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
 603         w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
 604         pci_write_config_word(ha->pdev, PCI_COMMAND, w);
 605
 606         pci_disable_rom(ha->pdev);
 607
 608         /* Get PCI bus information. */
 609         spin_lock_irqsave(&ha->hardware_lock, flags);
 610         ha->pci_attr = RD_REG_WORD(&reg->ctrl_status);
 611         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 612
 613         return QLA_SUCCESS;
 614 }
 615
 616 /**
 617  * qla2300_pci_config() - Setup ISP23xx PCI configuration registers.
 618  * @ha: HA context
 619  *
 620  * Returns 0 on success.
 621  */
 622 int
 623 qla2300_pci_config(scsi_qla_host_t *vha)
 624 {
 625         uint16_t        w;
 626         unsigned long   flags = 0;
 627         uint32_t        cnt;
 628         struct qla_hw_data *ha = vha->hw;
 629         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 630
 631         pci_set_master(ha->pdev);
 632         pci_try_set_mwi(ha->pdev);
 633
 634         pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
 635         w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
 636
 637         if (IS_QLA2322(ha) || IS_QLA6322(ha))
 638                 w &= ~PCI_COMMAND_INTX_DISABLE;
 639         pci_write_config_word(ha->pdev, PCI_COMMAND, w);
 640
 641         /*
 642          * If this is a 2300 card and not 2312, reset the
 643          * COMMAND_INVALIDATE due to a bug in the 2300. Unfortunately,
 644          * the 2310 also reports itself as a 2300 so we need to get the
 645          * fb revision level -- a 6 indicates it really is a 2300 and
 646          * not a 2310.
 647          */
 648         if (IS_QLA2300(ha)) {
 649                 spin_lock_irqsave(&ha->hardware_lock, flags);
 650
 651                 /* Pause RISC. */
 652                 WRT_REG_WORD(&reg->hccr, HCCR_PAUSE_RISC);
 653                 for (cnt = 0; cnt < 30000; cnt++) {
 654                         if ((RD_REG_WORD(&reg->hccr) & HCCR_RISC_PAUSE) != 0)
 655                                 break;
 656
 657                         udelay(10);
 658                 }
 659
 660                 /* Select FPM registers. */
 661                 WRT_REG_WORD(&reg->ctrl_status, 0x20);
 662                 RD_REG_WORD(&reg->ctrl_status);
 663
 664                 /* Get the fb rev level */
 665                 ha->fb_rev = RD_FB_CMD_REG(ha, reg);
 666
 667                 if (ha->fb_rev == FPM_2300)
 668                         pci_clear_mwi(ha->pdev);
 669
 670                 /* Deselect FPM registers. */
 671                 WRT_REG_WORD(&reg->ctrl_status, 0x0);
 672                 RD_REG_WORD(&reg->ctrl_status);
 673
 674                 /* Release RISC module. */
 675                 WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
 676                 for (cnt = 0; cnt < 30000; cnt++) {
 677                         if ((RD_REG_WORD(&reg->hccr) & HCCR_RISC_PAUSE) == 0)
 678                                 break;
 679
 680                         udelay(10);
 681                 }
 682
 683                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 684         }
 685
 686         pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);
 687
 688         pci_disable_rom(ha->pdev);
 689
 690         /* Get PCI bus information. */
 691         spin_lock_irqsave(&ha->hardware_lock, flags);
 692         ha->pci_attr = RD_REG_WORD(&reg->ctrl_status);
 693         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 694
 695         return QLA_SUCCESS;
 696 }
 697
 698 /**
 699  * qla24xx_pci_config() - Setup ISP24xx PCI configuration registers.
 700  * @ha: HA context
 701  *
 702  * Returns 0 on success.
 703  */
 704 int
 705 qla24xx_pci_config(scsi_qla_host_t *vha)
 706 {
 707         uint16_t w;
 708         unsigned long flags = 0;
 709         struct qla_hw_data *ha = vha->hw;
 710         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
 711
 712         pci_set_master(ha->pdev);
 713         pci_try_set_mwi(ha->pdev);
 714
 715         pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
 716         w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
 717         w &= ~PCI_COMMAND_INTX_DISABLE;
 718         pci_write_config_word(ha->pdev, PCI_COMMAND, w);
 719
 720         pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);
 721
 722         /* PCI-X -- adjust Maximum Memory Read Byte Count (2048). */
 723         if (pci_find_capability(ha->pdev, PCI_CAP_ID_PCIX))
 724                 pcix_set_mmrbc(ha->pdev, 2048);
 725
 726         /* PCIe -- adjust Maximum Read Request Size (2048). */
 727         if (pci_find_capability(ha->pdev, PCI_CAP_ID_EXP))
 728                 pcie_set_readrq(ha->pdev, 2048);
 729
 730         pci_disable_rom(ha->pdev);
 731
 732         ha->chip_revision = ha->pdev->revision;
 733
 734         /* Get PCI bus information. */
 735         spin_lock_irqsave(&ha->hardware_lock, flags);
 736         ha->pci_attr = RD_REG_DWORD(&reg->ctrl_status);
 737         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 738
 739         return QLA_SUCCESS;
 740 }
 741
 742 /**
 743  * qla25xx_pci_config() - Setup ISP25xx PCI configuration registers.
 744  * @ha: HA context
 745  *
 746  * Returns 0 on success.
 747  */
 748 int
 749 qla25xx_pci_config(scsi_qla_host_t *vha)
 750 {
 751         uint16_t w;
 752         struct qla_hw_data *ha = vha->hw;
 753
 754         pci_set_master(ha->pdev);
 755         pci_try_set_mwi(ha->pdev);
 756
 757         pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
 758         w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
 759         w &= ~PCI_COMMAND_INTX_DISABLE;
 760         pci_write_config_word(ha->pdev, PCI_COMMAND, w);
 761
 762         /* PCIe -- adjust Maximum Read Request Size (2048). */
 763         if (pci_find_capability(ha->pdev, PCI_CAP_ID_EXP))
 764                 pcie_set_readrq(ha->pdev, 2048);
 765
 766         pci_disable_rom(ha->pdev);
 767
 768         ha->chip_revision = ha->pdev->revision;
 769
 770         return QLA_SUCCESS;
 771 }
 772
 773 /**
 774  * qla2x00_isp_firmware() - Choose firmware image.
 775  * @ha: HA context
 776  *
 777  * Returns 0 on success.
 778  */
 779 static int
 780 qla2x00_isp_firmware(scsi_qla_host_t *vha)
 781 {
 782         int  rval;
 783         uint16_t loop_id, topo, sw_cap;
 784         uint8_t domain, area, al_pa;
 785         struct qla_hw_data *ha = vha->hw;
 786
 787         /* Assume loading risc code */
 788         rval = QLA_FUNCTION_FAILED;
 789
 790         if (ha->flags.disable_risc_code_load) {
 791                 DEBUG2(printk("scsi(%ld): RISC CODE NOT loaded\n",
 792                     vha->host_no));
 793                 qla_printk(KERN_INFO, ha, "RISC CODE NOT loaded\n");
 794
 795                 /* Verify checksum of loaded RISC code. */
 796                 rval = qla2x00_verify_checksum(vha, ha->fw_srisc_address);
 797                 if (rval == QLA_SUCCESS) {
 798                         /* And, verify we are not in ROM code. */
 799                         rval = qla2x00_get_adapter_id(vha, &loop_id, &al_pa,
 800                             &area, &domain, &topo, &sw_cap);
 801                 }
 802         }
 803
 804         if (rval) {
 805                 DEBUG2_3(printk("scsi(%ld): **** Load RISC code ****\n",
 806                     vha->host_no));
 807         }
 808
 809         return (rval);
 810 }
 811
 812 /**
 813  * qla2x00_reset_chip() - Reset ISP chip.
 814  * @ha: HA context
 815  *
 816  * Returns 0 on success.
 817  */
 818 void
 819 qla2x00_reset_chip(scsi_qla_host_t *vha)
 820 {
 821         unsigned long   flags = 0;
 822         struct qla_hw_data *ha = vha->hw;
 823         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 824         uint32_t        cnt;
 825         uint16_t        cmd;
 826
 827         if (unlikely(pci_channel_offline(ha->pdev)))
 828                 return;
 829
 830         ha->isp_ops->disable_intrs(ha);
 831
 832         spin_lock_irqsave(&ha->hardware_lock, flags);
 833
 834         /* Turn off master enable */
 835         cmd = 0;
 836         pci_read_config_word(ha->pdev, PCI_COMMAND, &cmd);
 837         cmd &= ~PCI_COMMAND_MASTER;
 838         pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
 839
 840         if (!IS_QLA2100(ha)) {
 841                 /* Pause RISC. */
 842                 WRT_REG_WORD(&reg->hccr, HCCR_PAUSE_RISC);
 843                 if (IS_QLA2200(ha) || IS_QLA2300(ha)) {
 844                         for (cnt = 0; cnt < 30000; cnt++) {
 845                                 if ((RD_REG_WORD(&reg->hccr) &
 846                                     HCCR_RISC_PAUSE) != 0)
 847                                         break;
 848                                 udelay(100);
 849                         }
 850                 } else {
 851                         RD_REG_WORD(&reg->hccr);        /* PCI Posting. */
 852                         udelay(10);
 853                 }
 854
 855                 /* Select FPM registers. */
 856                 WRT_REG_WORD(&reg->ctrl_status, 0x20);
 857                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
 858
 859                 /* FPM Soft Reset. */
 860                 WRT_REG_WORD(&reg->fpm_diag_config, 0x100);
 861                 RD_REG_WORD(&reg->fpm_diag_config);     /* PCI Posting. */
 862
 863                 /* Toggle Fpm Reset. */
 864                 if (!IS_QLA2200(ha)) {
 865                         WRT_REG_WORD(&reg->fpm_diag_config, 0x0);
 866                         RD_REG_WORD(&reg->fpm_diag_config); /* PCI Posting. */
 867                 }
 868
 869                 /* Select frame buffer registers. */
 870                 WRT_REG_WORD(&reg->ctrl_status, 0x10);
 871                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
 872
 873                 /* Reset frame buffer FIFOs. */
 874                 if (IS_QLA2200(ha)) {
 875                         WRT_FB_CMD_REG(ha, reg, 0xa000);
 876                         RD_FB_CMD_REG(ha, reg);         /* PCI Posting. */
 877                 } else {
 878                         WRT_FB_CMD_REG(ha, reg, 0x00fc);
 879
 880                         /* Read back fb_cmd until zero or 3 seconds max */
 881                         for (cnt = 0; cnt < 3000; cnt++) {
 882                                 if ((RD_FB_CMD_REG(ha, reg) & 0xff) == 0)
 883                                         break;
 884                                 udelay(100);
 885                         }
 886                 }
 887
 888                 /* Select RISC module registers. */
 889                 WRT_REG_WORD(&reg->ctrl_status, 0);
 890                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
 891
 892                 /* Reset RISC processor. */
 893                 WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
 894                 RD_REG_WORD(&reg->hccr);                /* PCI Posting. */
 895
 896                 /* Release RISC processor. */
 897                 WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
 898                 RD_REG_WORD(&reg->hccr);                /* PCI Posting. */
 899         }
 900
 901         WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
 902         WRT_REG_WORD(&reg->hccr, HCCR_CLR_HOST_INT);
 903
 904         /* Reset ISP chip. */
 905         WRT_REG_WORD(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
 906
 907         /* Wait for RISC to recover from reset. */
 908         if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
 909                 /*
 910                  * It is necessary to for a delay here since the card doesn't
 911                  * respond to PCI reads during a reset. On some architectures
 912                  * this will result in an MCA.
 913                  */
 914                 udelay(20);
 915                 for (cnt = 30000; cnt; cnt--) {
 916                         if ((RD_REG_WORD(&reg->ctrl_status) &
 917                             CSR_ISP_SOFT_RESET) == 0)
 918                                 break;
 919                         udelay(100);
 920                 }
 921         } else
 922                 udelay(10);
 923
 924         /* Reset RISC processor. */
 925         WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
 926
 927         WRT_REG_WORD(&reg->semaphore, 0);
 928
 929         /* Release RISC processor. */
 930         WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
 931         RD_REG_WORD(&reg->hccr);                        /* PCI Posting. */
 932
 933         if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
 934                 for (cnt = 0; cnt < 30000; cnt++) {
 935                         if (RD_MAILBOX_REG(ha, reg, 0) != MBS_BUSY)
 936                                 break;
 937
 938                         udelay(100);
 939                 }
 940         } else
 941                 udelay(100);
 942
 943         /* Turn on master enable */
 944         cmd |= PCI_COMMAND_MASTER;
 945         pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
 946
 947         /* Disable RISC pause on FPM parity error. */
 948         if (!IS_QLA2100(ha)) {
 949                 WRT_REG_WORD(&reg->hccr, HCCR_DISABLE_PARITY_PAUSE);
 950                 RD_REG_WORD(&reg->hccr);                /* PCI Posting. */
 951         }
 952
 953         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 954 }
 955
 956 /**
 957  * qla81xx_reset_mpi() - Reset's MPI FW via Write MPI Register MBC.
 958  *
 959  * Returns 0 on success.
 960  */
 961 int
 962 qla81xx_reset_mpi(scsi_qla_host_t *vha)
 963 {
 964         uint16_t mb[4] = {0x1010, 0, 1, 0};
 965
 966         return qla81xx_write_mpi_register(vha, mb);
 967 }
 968
 969 /**
 970  * qla24xx_reset_risc() - Perform full reset of ISP24xx RISC.
 971  * @ha: HA context
 972  *
 973  * Returns 0 on success.
 974  */
 975 static inline void
 976 qla24xx_reset_risc(scsi_qla_host_t *vha)
 977 {
 978         unsigned long flags = 0;
 979         struct qla_hw_data *ha = vha->hw;
 980         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
 981         uint32_t cnt, d2;
 982         uint16_t wd;
 983         static int abts_cnt; /* ISP abort retry counts */
 984
 985         spin_lock_irqsave(&ha->hardware_lock, flags);
 986
 987         /* Reset RISC. */
 988         WRT_REG_DWORD(&reg->ctrl_status, CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
 989         for (cnt = 0; cnt < 30000; cnt++) {
 990                 if ((RD_REG_DWORD(&reg->ctrl_status) & CSRX_DMA_ACTIVE) == 0)
 991                         break;
 992
 993                 udelay(10);
 994         }
 995
 996         WRT_REG_DWORD(&reg->ctrl_status,
 997             CSRX_ISP_SOFT_RESET|CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
 998         pci_read_config_word(ha->pdev, PCI_COMMAND, &wd);
 999
1000         udelay(100);
1001         /* Wait for firmware to complete NVRAM accesses. */
1002         d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
1003         for (cnt = 10000 ; cnt && d2; cnt--) {
1004                 udelay(5);
1005                 d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
1006                 barrier();
1007         }
1008
1009         /* Wait for soft-reset to complete. */
1010         d2 = RD_REG_DWORD(&reg->ctrl_status);
1011         for (cnt = 6000000 ; cnt && (d2 & CSRX_ISP_SOFT_RESET); cnt--) {
1012                 udelay(5);
1013                 d2 = RD_REG_DWORD(&reg->ctrl_status);
1014                 barrier();
1015         }
1016
1017         /* If required, do an MPI FW reset now */
1018         if (test_and_clear_bit(MPI_RESET_NEEDED, &vha->dpc_flags)) {
1019                 if (qla81xx_reset_mpi(vha) != QLA_SUCCESS) {
1020                         if (++abts_cnt < 5) {
1021                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1022                                 set_bit(MPI_RESET_NEEDED, &vha->dpc_flags);
1023                         } else {
1024                                 /*
1025                                  * We exhausted the ISP abort retries. We have to
1026                                  * set the board offline.
1027                                  */
1028                                 abts_cnt = 0;
1029                                 vha->flags.online = 0;
1030                         }
1031                 }
1032         }
1033
1034         WRT_REG_DWORD(&reg->hccr, HCCRX_SET_RISC_RESET);
1035         RD_REG_DWORD(&reg->hccr);
1036
1037         WRT_REG_DWORD(&reg->hccr, HCCRX_REL_RISC_PAUSE);
1038         RD_REG_DWORD(&reg->hccr);
1039
1040         WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_RESET);
1041         RD_REG_DWORD(&reg->hccr);
1042
1043         d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
1044         for (cnt = 6000000 ; cnt && d2; cnt--) {
1045                 udelay(5);
1046                 d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
1047                 barrier();
1048         }
1049
1050         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1051
1052         if (IS_NOPOLLING_TYPE(ha))
1053                 ha->isp_ops->enable_intrs(ha);
1054 }
1055
1056 /**
1057  * qla24xx_reset_chip() - Reset ISP24xx chip.
1058  * @ha: HA context
1059  *
1060  * Returns 0 on success.
1061  */
1062 void
1063 qla24xx_reset_chip(scsi_qla_host_t *vha)
1064 {
1065         struct qla_hw_data *ha = vha->hw;
1066
1067         if (pci_channel_offline(ha->pdev) &&
1068             ha->flags.pci_channel_io_perm_failure) {
1069                 return;
1070         }
1071
1072         ha->isp_ops->disable_intrs(ha);
1073
1074         /* Perform RISC reset. */
1075         qla24xx_reset_risc(vha);
1076 }
1077
1078 /**
1079  * qla2x00_chip_diag() - Test chip for proper operation.
1080  * @ha: HA context
1081  *
1082  * Returns 0 on success.
1083  */
1084 int
1085 qla2x00_chip_diag(scsi_qla_host_t *vha)
1086 {
1087         int             rval;
1088         struct qla_hw_data *ha = vha->hw;
1089         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1090         unsigned long   flags = 0;
1091         uint16_t        data;
1092         uint32_t        cnt;
1093         uint16_t        mb[5];
1094         struct req_que *req = ha->req_q_map[0];
1095
1096         /* Assume a failed state */
1097         rval = QLA_FUNCTION_FAILED;
1098
1099         DEBUG3(printk("scsi(%ld): Testing device at %lx.\n",
1100             vha->host_no, (u_long)&reg->flash_address));
1101
1102         spin_lock_irqsave(&ha->hardware_lock, flags);
1103
1104         /* Reset ISP chip. */
1105         WRT_REG_WORD(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
1106
1107         /*
1108          * We need to have a delay here since the card will not respond while
1109          * in reset causing an MCA on some architectures.
1110          */
1111         udelay(20);
1112         data = qla2x00_debounce_register(&reg->ctrl_status);
1113         for (cnt = 6000000 ; cnt && (data & CSR_ISP_SOFT_RESET); cnt--) {
1114                 udelay(5);
1115                 data = RD_REG_WORD(&reg->ctrl_status);
1116                 barrier();
1117         }
1118
1119         if (!cnt)
1120                 goto chip_diag_failed;
1121
1122         DEBUG3(printk("scsi(%ld): Reset register cleared by chip reset\n",
1123             vha->host_no));
1124
1125         /* Reset RISC processor. */
1126         WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
1127         WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
1128
1129         /* Workaround for QLA2312 PCI parity error */
1130         if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
1131                 data = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 0));
1132                 for (cnt = 6000000; cnt && (data == MBS_BUSY); cnt--) {
1133                         udelay(5);
1134                         data = RD_MAILBOX_REG(ha, reg, 0);
1135                         barrier();
1136                 }
1137         } else
1138                 udelay(10);
1139
1140         if (!cnt)
1141                 goto chip_diag_failed;
1142
1143         /* Check product ID of chip */
1144         DEBUG3(printk("scsi(%ld): Checking product ID of chip\n", vha->host_no));
1145
1146         mb[1] = RD_MAILBOX_REG(ha, reg, 1);
1147         mb[2] = RD_MAILBOX_REG(ha, reg, 2);
1148         mb[3] = RD_MAILBOX_REG(ha, reg, 3);
1149         mb[4] = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 4));
1150         if (mb[1] != PROD_ID_1 || (mb[2] != PROD_ID_2 && mb[2] != PROD_ID_2a) ||
1151             mb[3] != PROD_ID_3) {
1152                 qla_printk(KERN_WARNING, ha,
1153                     "Wrong product ID = 0x%x,0x%x,0x%x\n", mb[1], mb[2], mb[3]);
1154
1155                 goto chip_diag_failed;
1156         }
1157         ha->product_id[0] = mb[1];
1158         ha->product_id[1] = mb[2];
1159         ha->product_id[2] = mb[3];
1160         ha->product_id[3] = mb[4];
1161
1162         /* Adjust fw RISC transfer size */
1163         if (req->length > 1024)
1164                 ha->fw_transfer_size = REQUEST_ENTRY_SIZE * 1024;
1165         else
1166                 ha->fw_transfer_size = REQUEST_ENTRY_SIZE *
1167                     req->length;
1168
1169         if (IS_QLA2200(ha) &&
1170             RD_MAILBOX_REG(ha, reg, 7) == QLA2200A_RISC_ROM_VER) {
1171                 /* Limit firmware transfer size with a 2200A */
1172                 DEBUG3(printk("scsi(%ld): Found QLA2200A chip.\n",
1173                     vha->host_no));
1174
1175                 ha->device_type |= DT_ISP2200A;
1176                 ha->fw_transfer_size = 128;
1177         }
1178
1179         /* Wrap Incoming Mailboxes Test. */
1180         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1181
1182         DEBUG3(printk("scsi(%ld): Checking mailboxes.\n", vha->host_no));
1183         rval = qla2x00_mbx_reg_test(vha);
1184         if (rval) {
1185                 DEBUG(printk("scsi(%ld): Failed mailbox send register test\n",
1186                     vha->host_no));
1187                 qla_printk(KERN_WARNING, ha,
1188                     "Failed mailbox send register test\n");
1189         }
1190         else {
1191                 /* Flag a successful rval */
1192                 rval = QLA_SUCCESS;
1193         }
1194         spin_lock_irqsave(&ha->hardware_lock, flags);
1195
1196 chip_diag_failed:
1197         if (rval)
1198                 DEBUG2_3(printk("scsi(%ld): Chip diagnostics **** FAILED "
1199                     "****\n", vha->host_no));
1200
1201         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1202
1203         return (rval);
1204 }
1205
1206 /**
1207  * qla24xx_chip_diag() - Test ISP24xx for proper operation.
1208  * @ha: HA context
1209  *
1210  * Returns 0 on success.
1211  */
1212 int
1213 qla24xx_chip_diag(scsi_qla_host_t *vha)
1214 {
1215         int rval;
1216         struct qla_hw_data *ha = vha->hw;
1217         struct req_que *req = ha->req_q_map[0];
1218
1219         if (IS_QLA82XX(ha))
1220                 return QLA_SUCCESS;
1221
1222         ha->fw_transfer_size = REQUEST_ENTRY_SIZE * req->length;
1223
1224         rval = qla2x00_mbx_reg_test(vha);
1225         if (rval) {
1226                 DEBUG(printk("scsi(%ld): Failed mailbox send register test\n",
1227                     vha->host_no));
1228                 qla_printk(KERN_WARNING, ha,
1229                     "Failed mailbox send register test\n");
1230         } else {
1231                 /* Flag a successful rval */
1232                 rval = QLA_SUCCESS;
1233         }
1234
1235         return rval;
1236 }
1237
1238 void
1239 qla2x00_alloc_fw_dump(scsi_qla_host_t *vha)
1240 {
1241         int rval;
1242         uint32_t dump_size, fixed_size, mem_size, req_q_size, rsp_q_size,
1243             eft_size, fce_size, mq_size;
1244         dma_addr_t tc_dma;
1245         void *tc;
1246         struct qla_hw_data *ha = vha->hw;
1247         struct req_que *req = ha->req_q_map[0];
1248         struct rsp_que *rsp = ha->rsp_q_map[0];
1249
1250         if (ha->fw_dump) {
1251                 qla_printk(KERN_WARNING, ha,
1252                     "Firmware dump previously allocated.\n");
1253                 return;
1254         }
1255
1256         ha->fw_dumped = 0;
1257         fixed_size = mem_size = eft_size = fce_size = mq_size = 0;
1258         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
1259                 fixed_size = sizeof(struct qla2100_fw_dump);
1260         } else if (IS_QLA23XX(ha)) {
1261                 fixed_size = offsetof(struct qla2300_fw_dump, data_ram);
1262                 mem_size = (ha->fw_memory_size - 0x11000 + 1) *
1263                     sizeof(uint16_t);
1264         } else if (IS_FWI2_CAPABLE(ha)) {
1265                 if (IS_QLA81XX(ha))
1266                         fixed_size = offsetof(struct qla81xx_fw_dump, ext_mem);
1267                 else if (IS_QLA25XX(ha))
1268                         fixed_size = offsetof(struct qla25xx_fw_dump, ext_mem);
1269                 else
1270                         fixed_size = offsetof(struct qla24xx_fw_dump, ext_mem);
1271                 mem_size = (ha->fw_memory_size - 0x100000 + 1) *
1272                     sizeof(uint32_t);
1273                 if (ha->mqenable)
1274                         mq_size = sizeof(struct qla2xxx_mq_chain);
1275                 /* Allocate memory for Fibre Channel Event Buffer. */
1276                 if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha))
1277                         goto try_eft;
1278
1279                 tc = dma_alloc_coherent(&ha->pdev->dev, FCE_SIZE, &tc_dma,
1280                     GFP_KERNEL);
1281                 if (!tc) {
1282                         qla_printk(KERN_WARNING, ha, "Unable to allocate "
1283                             "(%d KB) for FCE.\n", FCE_SIZE / 1024);
1284                         goto try_eft;
1285                 }
1286
1287                 memset(tc, 0, FCE_SIZE);
1288                 rval = qla2x00_enable_fce_trace(vha, tc_dma, FCE_NUM_BUFFERS,
1289                     ha->fce_mb, &ha->fce_bufs);
1290                 if (rval) {
1291                         qla_printk(KERN_WARNING, ha, "Unable to initialize "
1292                             "FCE (%d).\n", rval);
1293                         dma_free_coherent(&ha->pdev->dev, FCE_SIZE, tc,
1294                             tc_dma);
1295                         ha->flags.fce_enabled = 0;
1296                         goto try_eft;
1297                 }
1298
1299                 qla_printk(KERN_INFO, ha, "Allocated (%d KB) for FCE...\n",
1300                     FCE_SIZE / 1024);
1301
1302                 fce_size = sizeof(struct qla2xxx_fce_chain) + FCE_SIZE;
1303                 ha->flags.fce_enabled = 1;
1304                 ha->fce_dma = tc_dma;
1305                 ha->fce = tc;
1306 try_eft:
1307                 /* Allocate memory for Extended Trace Buffer. */
1308                 tc = dma_alloc_coherent(&ha->pdev->dev, EFT_SIZE, &tc_dma,
1309                     GFP_KERNEL);
1310                 if (!tc) {
1311                         qla_printk(KERN_WARNING, ha, "Unable to allocate "
1312                             "(%d KB) for EFT.\n", EFT_SIZE / 1024);
1313                         goto cont_alloc;
1314                 }
1315
1316                 memset(tc, 0, EFT_SIZE);
1317                 rval = qla2x00_enable_eft_trace(vha, tc_dma, EFT_NUM_BUFFERS);
1318                 if (rval) {
1319                         qla_printk(KERN_WARNING, ha, "Unable to initialize "
1320                             "EFT (%d).\n", rval);
1321                         dma_free_coherent(&ha->pdev->dev, EFT_SIZE, tc,
1322                             tc_dma);
1323                         goto cont_alloc;
1324                 }
1325
1326                 qla_printk(KERN_INFO, ha, "Allocated (%d KB) for EFT...\n",
1327                     EFT_SIZE / 1024);
1328
1329                 eft_size = EFT_SIZE;
1330                 ha->eft_dma = tc_dma;
1331                 ha->eft = tc;
1332         }
1333 cont_alloc:
1334         req_q_size = req->length * sizeof(request_t);
1335         rsp_q_size = rsp->length * sizeof(response_t);
1336
1337         dump_size = offsetof(struct qla2xxx_fw_dump, isp);
1338         dump_size += fixed_size + mem_size + req_q_size + rsp_q_size + eft_size;
1339         ha->chain_offset = dump_size;
1340         dump_size += mq_size + fce_size;
1341
1342         ha->fw_dump = vmalloc(dump_size);
1343         if (!ha->fw_dump) {
1344                 qla_printk(KERN_WARNING, ha, "Unable to allocate (%d KB) for "
1345                     "firmware dump!!!\n", dump_size / 1024);
1346
1347                 if (ha->eft) {
1348                         dma_free_coherent(&ha->pdev->dev, eft_size, ha->eft,
1349                             ha->eft_dma);
1350                         ha->eft = NULL;
1351                         ha->eft_dma = 0;
1352                 }
1353                 return;
1354         }
1355         qla_printk(KERN_INFO, ha, "Allocated (%d KB) for firmware dump...\n",
1356             dump_size / 1024);
1357
1358         ha->fw_dump_len = dump_size;
1359         ha->fw_dump->signature[0] = 'Q';
1360         ha->fw_dump->signature[1] = 'L';
1361         ha->fw_dump->signature[2] = 'G';
1362         ha->fw_dump->signature[3] = 'C';
1363         ha->fw_dump->version = __constant_htonl(1);
1364
1365         ha->fw_dump->fixed_size = htonl(fixed_size);
1366         ha->fw_dump->mem_size = htonl(mem_size);
1367         ha->fw_dump->req_q_size = htonl(req_q_size);
1368         ha->fw_dump->rsp_q_size = htonl(rsp_q_size);
1369
1370         ha->fw_dump->eft_size = htonl(eft_size);
1371         ha->fw_dump->eft_addr_l = htonl(LSD(ha->eft_dma));
1372         ha->fw_dump->eft_addr_h = htonl(MSD(ha->eft_dma));
1373
1374         ha->fw_dump->header_size =
1375             htonl(offsetof(struct qla2xxx_fw_dump, isp));
1376 }
1377
1378 static int
1379 qla81xx_mpi_sync(scsi_qla_host_t *vha)
1380 {
1381 #define MPS_MASK        0xe0
1382         int rval;
1383         uint16_t dc;
1384         uint32_t dw;
1385         struct qla_hw_data *ha = vha->hw;
1386
1387         if (!IS_QLA81XX(vha->hw))
1388                 return QLA_SUCCESS;
1389
1390         rval = qla2x00_write_ram_word(vha, 0x7c00, 1);
1391         if (rval != QLA_SUCCESS) {
1392                 DEBUG2(qla_printk(KERN_WARNING, ha,
1393                     "Sync-MPI: Unable to acquire semaphore.\n"));
1394                 goto done;
1395         }
1396
1397         pci_read_config_word(vha->hw->pdev, 0x54, &dc);
1398         rval = qla2x00_read_ram_word(vha, 0x7a15, &dw);
1399         if (rval != QLA_SUCCESS) {
1400                 DEBUG2(qla_printk(KERN_WARNING, ha,
1401                     "Sync-MPI: Unable to read sync.\n"));
1402                 goto done_release;
1403         }
1404
1405         dc &= MPS_MASK;
1406         if (dc == (dw & MPS_MASK))
1407                 goto done_release;
1408
1409         dw &= ~MPS_MASK;
1410         dw |= dc;
1411         rval = qla2x00_write_ram_word(vha, 0x7a15, dw);
1412         if (rval != QLA_SUCCESS) {
1413                 DEBUG2(qla_printk(KERN_WARNING, ha,
1414                     "Sync-MPI: Unable to gain sync.\n"));
1415         }
1416
1417 done_release:
1418         rval = qla2x00_write_ram_word(vha, 0x7c00, 0);
1419         if (rval != QLA_SUCCESS) {
1420                 DEBUG2(qla_printk(KERN_WARNING, ha,
1421                     "Sync-MPI: Unable to release semaphore.\n"));
1422         }
1423
1424 done:
1425         return rval;
1426 }
1427
1428 /**
1429  * qla2x00_setup_chip() - Load and start RISC firmware.
1430  * @ha: HA context
1431  *
1432  * Returns 0 on success.
1433  */
1434 static int
1435 qla2x00_setup_chip(scsi_qla_host_t *vha)
1436 {
1437         int rval;
1438         uint32_t srisc_address = 0;
1439         struct qla_hw_data *ha = vha->hw;
1440         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1441         unsigned long flags;
1442         uint16_t fw_major_version;
1443
1444         if (IS_QLA82XX(ha)) {
1445                 rval = ha->isp_ops->load_risc(vha, &srisc_address);
1446                 if (rval == QLA_SUCCESS) {
1447                         qla2x00_stop_firmware(vha);
1448                         goto enable_82xx_npiv;
1449                 } else
1450                         goto failed;
1451         }
1452
1453         if (!IS_FWI2_CAPABLE(ha) && !IS_QLA2100(ha) && !IS_QLA2200(ha)) {
1454                 /* Disable SRAM, Instruction RAM and GP RAM parity.  */
1455                 spin_lock_irqsave(&ha->hardware_lock, flags);
1456                 WRT_REG_WORD(&reg->hccr, (HCCR_ENABLE_PARITY + 0x0));
1457                 RD_REG_WORD(&reg->hccr);
1458                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1459         }
1460
1461         qla81xx_mpi_sync(vha);
1462
1463         /* Load firmware sequences */
1464         rval = ha->isp_ops->load_risc(vha, &srisc_address);
1465         if (rval == QLA_SUCCESS) {
1466                 DEBUG(printk("scsi(%ld): Verifying Checksum of loaded RISC "
1467                     "code.\n", vha->host_no));
1468
1469                 rval = qla2x00_verify_checksum(vha, srisc_address);
1470                 if (rval == QLA_SUCCESS) {
1471                         /* Start firmware execution. */
1472                         DEBUG(printk("scsi(%ld): Checksum OK, start "
1473                             "firmware.\n", vha->host_no));
1474
1475                         rval = qla2x00_execute_fw(vha, srisc_address);
1476                         /* Retrieve firmware information. */
1477                         if (rval == QLA_SUCCESS) {
1478 enable_82xx_npiv:
1479                                 fw_major_version = ha->fw_major_version;
1480                                 rval = qla2x00_get_fw_version(vha,
1481                                     &ha->fw_major_version,
1482                                     &ha->fw_minor_version,
1483                                     &ha->fw_subminor_version,
1484                                     &ha->fw_attributes, &ha->fw_memory_size,
1485                                     ha->mpi_version, &ha->mpi_capabilities,
1486                                     ha->phy_version);
1487                                 if (rval != QLA_SUCCESS)
1488                                         goto failed;
1489                                 ha->flags.npiv_supported = 0;
1490                                 if (IS_QLA2XXX_MIDTYPE(ha) &&
1491                                          (ha->fw_attributes & BIT_2)) {
1492                                         ha->flags.npiv_supported = 1;
1493                                         if ((!ha->max_npiv_vports) ||
1494                                             ((ha->max_npiv_vports + 1) %
1495                                             MIN_MULTI_ID_FABRIC))
1496                                                 ha->max_npiv_vports =
1497                                                     MIN_MULTI_ID_FABRIC - 1;
1498                                 }
1499                                 qla2x00_get_resource_cnts(vha, NULL,
1500                                     &ha->fw_xcb_count, NULL, NULL,
1501                                     &ha->max_npiv_vports, NULL);
1502
1503                                 if (!fw_major_version && ql2xallocfwdump) {
1504                                         if (!IS_QLA82XX(ha))
1505                                                 qla2x00_alloc_fw_dump(vha);
1506                                 }
1507                         }
1508                 } else {
1509                         DEBUG2(printk(KERN_INFO
1510                             "scsi(%ld): ISP Firmware failed checksum.\n",
1511                             vha->host_no));
1512                 }
1513         }
1514
1515         if (!IS_FWI2_CAPABLE(ha) && !IS_QLA2100(ha) && !IS_QLA2200(ha)) {
1516                 /* Enable proper parity. */
1517                 spin_lock_irqsave(&ha->hardware_lock, flags);
1518                 if (IS_QLA2300(ha))
1519                         /* SRAM parity */
1520                         WRT_REG_WORD(&reg->hccr, HCCR_ENABLE_PARITY + 0x1);
1521                 else
1522                         /* SRAM, Instruction RAM and GP RAM parity */
1523                         WRT_REG_WORD(&reg->hccr, HCCR_ENABLE_PARITY + 0x7);
1524                 RD_REG_WORD(&reg->hccr);
1525                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1526         }
1527
1528         if (rval == QLA_SUCCESS && IS_FAC_REQUIRED(ha)) {
1529                 uint32_t size;
1530
1531                 rval = qla81xx_fac_get_sector_size(vha, &size);
1532                 if (rval == QLA_SUCCESS) {
1533                         ha->flags.fac_supported = 1;
1534                         ha->fdt_block_size = size << 2;
1535                 } else {
1536                         qla_printk(KERN_ERR, ha,
1537                             "Unsupported FAC firmware (%d.%02d.%02d).\n",
1538                             ha->fw_major_version, ha->fw_minor_version,
1539                             ha->fw_subminor_version);
1540                 }
1541         }
1542 failed:
1543         if (rval) {
1544                 DEBUG2_3(printk("scsi(%ld): Setup chip **** FAILED ****.\n",
1545                     vha->host_no));
1546         }
1547
1548         return (rval);
1549 }
1550
1551 /**
1552  * qla2x00_init_response_q_entries() - Initializes response queue entries.
1553  * @ha: HA context
1554  *
1555  * Beginning of request ring has initialization control block already built
1556  * by nvram config routine.
1557  *
1558  * Returns 0 on success.
1559  */
1560 void
1561 qla2x00_init_response_q_entries(struct rsp_que *rsp)
1562 {
1563         uint16_t cnt;
1564         response_t *pkt;
1565
1566         rsp->ring_ptr = rsp->ring;
1567         rsp->ring_index    = 0;
1568         rsp->status_srb = NULL;
1569         pkt = rsp->ring_ptr;
1570         for (cnt = 0; cnt < rsp->length; cnt++) {
1571                 pkt->signature = RESPONSE_PROCESSED;
1572                 pkt++;
1573         }
1574 }
1575
1576 /**
1577  * qla2x00_update_fw_options() - Read and process firmware options.
1578  * @ha: HA context
1579  *
1580  * Returns 0 on success.
1581  */
1582 void
1583 qla2x00_update_fw_options(scsi_qla_host_t *vha)
1584 {
1585         uint16_t swing, emphasis, tx_sens, rx_sens;
1586         struct qla_hw_data *ha = vha->hw;
1587
1588         memset(ha->fw_options, 0, sizeof(ha->fw_options));
1589         qla2x00_get_fw_options(vha, ha->fw_options);
1590
1591         if (IS_QLA2100(ha) || IS_QLA2200(ha))
1592                 return;
1593
1594         /* Serial Link options. */
1595         DEBUG3(printk("scsi(%ld): Serial link options:\n",
1596             vha->host_no));
1597         DEBUG3(qla2x00_dump_buffer((uint8_t *)&ha->fw_seriallink_options,
1598             sizeof(ha->fw_seriallink_options)));
1599
1600         ha->fw_options[1] &= ~FO1_SET_EMPHASIS_SWING;
1601         if (ha->fw_seriallink_options[3] & BIT_2) {
1602                 ha->fw_options[1] |= FO1_SET_EMPHASIS_SWING;
1603
1604                 /*  1G settings */
1605                 swing = ha->fw_seriallink_options[2] & (BIT_2 | BIT_1 | BIT_0);
1606                 emphasis = (ha->fw_seriallink_options[2] &
1607                     (BIT_4 | BIT_3)) >> 3;
1608                 tx_sens = ha->fw_seriallink_options[0] &
1609                     (BIT_3 | BIT_2 | BIT_1 | BIT_0);
1610                 rx_sens = (ha->fw_seriallink_options[0] &
1611                     (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
1612                 ha->fw_options[10] = (emphasis << 14) | (swing << 8);
1613                 if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
1614                         if (rx_sens == 0x0)
1615                                 rx_sens = 0x3;
1616                         ha->fw_options[10] |= (tx_sens << 4) | rx_sens;
1617                 } else if (IS_QLA2322(ha) || IS_QLA6322(ha))
1618                         ha->fw_options[10] |= BIT_5 |
1619                             ((rx_sens & (BIT_1 | BIT_0)) << 2) |
1620                             (tx_sens & (BIT_1 | BIT_0));
1621
1622                 /*  2G settings */
1623                 swing = (ha->fw_seriallink_options[2] &
1624                     (BIT_7 | BIT_6 | BIT_5)) >> 5;
1625                 emphasis = ha->fw_seriallink_options[3] & (BIT_1 | BIT_0);
1626                 tx_sens = ha->fw_seriallink_options[1] &
1627                     (BIT_3 | BIT_2 | BIT_1 | BIT_0);
1628                 rx_sens = (ha->fw_seriallink_options[1] &
1629                     (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
1630                 ha->fw_options[11] = (emphasis << 14) | (swing << 8);
1631                 if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
1632                         if (rx_sens == 0x0)
1633                                 rx_sens = 0x3;
1634                         ha->fw_options[11] |= (tx_sens << 4) | rx_sens;
1635                 } else if (IS_QLA2322(ha) || IS_QLA6322(ha))
1636                         ha->fw_options[11] |= BIT_5 |
1637                             ((rx_sens & (BIT_1 | BIT_0)) << 2) |
1638                             (tx_sens & (BIT_1 | BIT_0));
1639         }
1640
1641         /* FCP2 options. */
1642         /*  Return command IOCBs without waiting for an ABTS to complete. */
1643         ha->fw_options[3] |= BIT_13;
1644
1645         /* LED scheme. */
1646         if (ha->flags.enable_led_scheme)
1647                 ha->fw_options[2] |= BIT_12;
1648
1649         /* Detect ISP6312. */
1650         if (IS_QLA6312(ha))
1651                 ha->fw_options[2] |= BIT_13;
1652
1653         /* Update firmware options. */
1654         qla2x00_set_fw_options(vha, ha->fw_options);
1655 }
1656
1657 void
1658 qla24xx_update_fw_options(scsi_qla_host_t *vha)
1659 {
1660         int rval;
1661         struct qla_hw_data *ha = vha->hw;
1662
1663         if (IS_QLA82XX(ha))
1664                 return;
1665
1666         /* Update Serial Link options. */
1667         if ((le16_to_cpu(ha->fw_seriallink_options24[0]) & BIT_0) == 0)
1668                 return;
1669
1670         rval = qla2x00_set_serdes_params(vha,
1671             le16_to_cpu(ha->fw_seriallink_options24[1]),
1672             le16_to_cpu(ha->fw_seriallink_options24[2]),
1673             le16_to_cpu(ha->fw_seriallink_options24[3]));
1674         if (rval != QLA_SUCCESS) {
1675                 qla_printk(KERN_WARNING, ha,
1676                     "Unable to update Serial Link options (%x).\n", rval);
1677         }
1678 }
1679
1680 void
1681 qla2x00_config_rings(struct scsi_qla_host *vha)
1682 {
1683         struct qla_hw_data *ha = vha->hw;
1684         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1685         struct req_que *req = ha->req_q_map[0];
1686         struct rsp_que *rsp = ha->rsp_q_map[0];
1687
1688         /* Setup ring parameters in initialization control block. */
1689         ha->init_cb->request_q_outpointer = __constant_cpu_to_le16(0);
1690         ha->init_cb->response_q_inpointer = __constant_cpu_to_le16(0);
1691         ha->init_cb->request_q_length = cpu_to_le16(req->length);
1692         ha->init_cb->response_q_length = cpu_to_le16(rsp->length);
1693         ha->init_cb->request_q_address[0] = cpu_to_le32(LSD(req->dma));
1694         ha->init_cb->request_q_address[1] = cpu_to_le32(MSD(req->dma));
1695         ha->init_cb->response_q_address[0] = cpu_to_le32(LSD(rsp->dma));
1696         ha->init_cb->response_q_address[1] = cpu_to_le32(MSD(rsp->dma));
1697
1698         WRT_REG_WORD(ISP_REQ_Q_IN(ha, reg), 0);
1699         WRT_REG_WORD(ISP_REQ_Q_OUT(ha, reg), 0);
1700         WRT_REG_WORD(ISP_RSP_Q_IN(ha, reg), 0);
1701         WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), 0);
1702         RD_REG_WORD(ISP_RSP_Q_OUT(ha, reg));            /* PCI Posting. */
1703 }
1704
1705 void
1706 qla24xx_config_rings(struct scsi_qla_host *vha)
1707 {
1708         struct qla_hw_data *ha = vha->hw;
1709         device_reg_t __iomem *reg = ISP_QUE_REG(ha, 0);
1710         struct device_reg_2xxx __iomem *ioreg = &ha->iobase->isp;
1711         struct qla_msix_entry *msix;
1712         struct init_cb_24xx *icb;
1713         uint16_t rid = 0;
1714         struct req_que *req = ha->req_q_map[0];
1715         struct rsp_que *rsp = ha->rsp_q_map[0];
1716
1717 /* Setup ring parameters in initialization control block. */
1718         icb = (struct init_cb_24xx *)ha->init_cb;
1719         icb->request_q_outpointer = __constant_cpu_to_le16(0);
1720         icb->response_q_inpointer = __constant_cpu_to_le16(0);
1721         icb->request_q_length = cpu_to_le16(req->length);
1722         icb->response_q_length = cpu_to_le16(rsp->length);
1723         icb->request_q_address[0] = cpu_to_le32(LSD(req->dma));
1724         icb->request_q_address[1] = cpu_to_le32(MSD(req->dma));
1725         icb->response_q_address[0] = cpu_to_le32(LSD(rsp->dma));
1726         icb->response_q_address[1] = cpu_to_le32(MSD(rsp->dma));
1727
1728         if (ha->mqenable) {
1729                 icb->qos = __constant_cpu_to_le16(QLA_DEFAULT_QUE_QOS);
1730                 icb->rid = __constant_cpu_to_le16(rid);
1731                 if (ha->flags.msix_enabled) {
1732                         msix = &ha->msix_entries[1];
1733                         DEBUG2_17(printk(KERN_INFO
1734                         "Registering vector 0x%x for base que\n", msix->entry));
1735                         icb->msix = cpu_to_le16(msix->entry);
1736                 }
1737                 /* Use alternate PCI bus number */
1738                 if (MSB(rid))
1739                         icb->firmware_options_2 |=
1740                                 __constant_cpu_to_le32(BIT_19);
1741                 /* Use alternate PCI devfn */
1742                 if (LSB(rid))
1743                         icb->firmware_options_2 |=
1744                                 __constant_cpu_to_le32(BIT_18);
1745
1746                 /* Use Disable MSIX Handshake mode for capable adapters */
1747                 if (IS_MSIX_NACK_CAPABLE(ha)) {
1748                         icb->firmware_options_2 &=
1749                                 __constant_cpu_to_le32(~BIT_22);
1750                         ha->flags.disable_msix_handshake = 1;
1751                         qla_printk(KERN_INFO, ha,
1752                                 "MSIX Handshake Disable Mode turned on\n");
1753                 } else {
1754                         icb->firmware_options_2 |=
1755                                 __constant_cpu_to_le32(BIT_22);
1756                 }
1757                 icb->firmware_options_2 |= __constant_cpu_to_le32(BIT_23);
1758
1759                 WRT_REG_DWORD(&reg->isp25mq.req_q_in, 0);
1760                 WRT_REG_DWORD(&reg->isp25mq.req_q_out, 0);
1761                 WRT_REG_DWORD(&reg->isp25mq.rsp_q_in, 0);
1762                 WRT_REG_DWORD(&reg->isp25mq.rsp_q_out, 0);
1763         } else {
1764                 WRT_REG_DWORD(&reg->isp24.req_q_in, 0);
1765                 WRT_REG_DWORD(&reg->isp24.req_q_out, 0);
1766                 WRT_REG_DWORD(&reg->isp24.rsp_q_in, 0);
1767                 WRT_REG_DWORD(&reg->isp24.rsp_q_out, 0);
1768         }
1769         /* PCI posting */
1770         RD_REG_DWORD(&ioreg->hccr);
1771 }
1772
1773 /**
1774  * qla2x00_init_rings() - Initializes firmware.
1775  * @ha: HA context
1776  *
1777  * Beginning of request ring has initialization control block already built
1778  * by nvram config routine.
1779  *
1780  * Returns 0 on success.
1781  */
1782 static int
1783 qla2x00_init_rings(scsi_qla_host_t *vha)
1784 {
1785         int     rval;
1786         unsigned long flags = 0;
1787         int cnt, que;
1788         struct qla_hw_data *ha = vha->hw;
1789         struct req_que *req;
1790         struct rsp_que *rsp;
1791         struct scsi_qla_host *vp;
1792         struct mid_init_cb_24xx *mid_init_cb =
1793             (struct mid_init_cb_24xx *) ha->init_cb;
1794
1795         spin_lock_irqsave(&ha->hardware_lock, flags);
1796
1797         /* Clear outstanding commands array. */
1798         for (que = 0; que < ha->max_req_queues; que++) {
1799                 req = ha->req_q_map[que];
1800                 if (!req)
1801                         continue;
1802                 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++)
1803                         req->outstanding_cmds[cnt] = NULL;
1804
1805                 req->current_outstanding_cmd = 1;
1806
1807                 /* Initialize firmware. */
1808                 req->ring_ptr  = req->ring;
1809                 req->ring_index    = 0;
1810                 req->cnt      = req->length;
1811         }
1812
1813         for (que = 0; que < ha->max_rsp_queues; que++) {
1814                 rsp = ha->rsp_q_map[que];
1815                 if (!rsp)
1816                         continue;
1817                 /* Initialize response queue entries */
1818                 qla2x00_init_response_q_entries(rsp);
1819         }
1820
1821         spin_lock(&ha->vport_slock);
1822         /* Clear RSCN queue. */
1823         list_for_each_entry(vp, &ha->vp_list, list) {
1824                 vp->rscn_in_ptr = 0;
1825                 vp->rscn_out_ptr = 0;
1826         }
1827
1828         spin_unlock(&ha->vport_slock);
1829
1830         ha->isp_ops->config_rings(vha);
1831
1832         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1833
1834         /* Update any ISP specific firmware options before initialization. */
1835         ha->isp_ops->update_fw_options(vha);
1836
1837         DEBUG(printk("scsi(%ld): Issue init firmware.\n", vha->host_no));
1838
1839         if (ha->flags.npiv_supported) {
1840                 if (ha->operating_mode == LOOP)
1841                         ha->max_npiv_vports = MIN_MULTI_ID_FABRIC - 1;
1842                 mid_init_cb->count = cpu_to_le16(ha->max_npiv_vports);
1843         }
1844
1845         if (IS_FWI2_CAPABLE(ha)) {
1846                 mid_init_cb->options = __constant_cpu_to_le16(BIT_1);
1847                 mid_init_cb->init_cb.execution_throttle =
1848                     cpu_to_le16(ha->fw_xcb_count);
1849         }
1850
1851         rval = qla2x00_init_firmware(vha, ha->init_cb_size);
1852         if (rval) {
1853                 DEBUG2_3(printk("scsi(%ld): Init firmware **** FAILED ****.\n",
1854                     vha->host_no));
1855         } else {
1856                 DEBUG3(printk("scsi(%ld): Init firmware -- success.\n",
1857                     vha->host_no));
1858         }
1859
1860         return (rval);
1861 }
1862
1863 /**
1864  * qla2x00_fw_ready() - Waits for firmware ready.
1865  * @ha: HA context
1866  *
1867  * Returns 0 on success.
1868  */
1869 static int
1870 qla2x00_fw_ready(scsi_qla_host_t *vha)
1871 {
1872         int             rval;
1873         unsigned long   wtime, mtime, cs84xx_time;
1874         uint16_t        min_wait;       /* Minimum wait time if loop is down */
1875         uint16_t        wait_time;      /* Wait time if loop is coming ready */
1876         uint16_t        state[5];
1877         struct qla_hw_data *ha = vha->hw;
1878
1879         rval = QLA_SUCCESS;
1880
1881         /* 20 seconds for loop down. */
1882         min_wait = 20;
1883
1884         /*
1885          * Firmware should take at most one RATOV to login, plus 5 seconds for
1886          * our own processing.
1887          */
1888         if ((wait_time = (ha->retry_count*ha->login_timeout) + 5) < min_wait) {
1889                 wait_time = min_wait;
1890         }
1891
1892         /* Min wait time if loop down */
1893         mtime = jiffies + (min_wait * HZ);
1894
1895         /* wait time before firmware ready */
1896         wtime = jiffies + (wait_time * HZ);
1897
1898         /* Wait for ISP to finish LIP */
1899         if (!vha->flags.init_done)
1900                 qla_printk(KERN_INFO, ha, "Waiting for LIP to complete...\n");
1901
1902         DEBUG3(printk("scsi(%ld): Waiting for LIP to complete...\n",
1903             vha->host_no));
1904
1905         do {
1906                 rval = qla2x00_get_firmware_state(vha, state);
1907                 if (rval == QLA_SUCCESS) {
1908                         if (state[0] < FSTATE_LOSS_OF_SYNC) {
1909                                 vha->device_flags &= ~DFLG_NO_CABLE;
1910                         }
1911                         if (IS_QLA84XX(ha) && state[0] != FSTATE_READY) {
1912                                 DEBUG16(printk("scsi(%ld): fw_state=%x "
1913                                     "84xx=%x.\n", vha->host_no, state[0],
1914                                     state[2]));
1915                                 if ((state[2] & FSTATE_LOGGED_IN) &&
1916                                      (state[2] & FSTATE_WAITING_FOR_VERIFY)) {
1917                                         DEBUG16(printk("scsi(%ld): Sending "
1918                                             "verify iocb.\n", vha->host_no));
1919
1920                                         cs84xx_time = jiffies;
1921                                         rval = qla84xx_init_chip(vha);
1922                                         if (rval != QLA_SUCCESS)
1923                                                 break;
1924
1925                                         /* Add time taken to initialize. */
1926                                         cs84xx_time = jiffies - cs84xx_time;
1927                                         wtime += cs84xx_time;
1928                                         mtime += cs84xx_time;
1929                                         DEBUG16(printk("scsi(%ld): Increasing "
1930                                             "wait time by %ld. New time %ld\n",
1931                                             vha->host_no, cs84xx_time, wtime));
1932                                 }
1933                         } else if (state[0] == FSTATE_READY) {
1934                                 DEBUG(printk("scsi(%ld): F/W Ready - OK \n",
1935                                     vha->host_no));
1936
1937                                 qla2x00_get_retry_cnt(vha, &ha->retry_count,
1938                                     &ha->login_timeout, &ha->r_a_tov);
1939
1940                                 rval = QLA_SUCCESS;
1941                                 break;
1942                         }
1943
1944                         rval = QLA_FUNCTION_FAILED;
1945
1946                         if (atomic_read(&vha->loop_down_timer) &&
1947                             state[0] != FSTATE_READY) {
1948                                 /* Loop down. Timeout on min_wait for states
1949                                  * other than Wait for Login.
1950                                  */
1951                                 if (time_after_eq(jiffies, mtime)) {
1952                                         qla_printk(KERN_INFO, ha,
1953                                             "Cable is unplugged...\n");
1954
1955                                         vha->device_flags |= DFLG_NO_CABLE;
1956                                         break;
1957                                 }
1958                         }
1959                 } else {
1960                         /* Mailbox cmd failed. Timeout on min_wait. */
1961                         if (time_after_eq(jiffies, mtime) ||
1962                             (IS_QLA82XX(ha) && ha->flags.fw_hung))
1963                                 break;
1964                 }
1965
1966                 if (time_after_eq(jiffies, wtime))
1967                         break;
1968
1969                 /* Delay for a while */
1970                 msleep(500);
1971
1972                 DEBUG3(printk("scsi(%ld): fw_state=%x curr time=%lx.\n",
1973                     vha->host_no, state[0], jiffies));
1974         } while (1);
1975
1976         DEBUG(printk("scsi(%ld): fw_state=%x (%x, %x, %x, %x) curr time=%lx.\n",
1977             vha->host_no, state[0], state[1], state[2], state[3], state[4],
1978             jiffies));
1979
1980         if (rval) {
1981                 DEBUG2_3(printk("scsi(%ld): Firmware ready **** FAILED ****.\n",
1982                     vha->host_no));
1983         }
1984
1985         return (rval);
1986 }
1987
1988 /*
1989 *  qla2x00_configure_hba
1990 *      Setup adapter context.
1991 *
1992 * Input:
1993 *      ha = adapter state pointer.
1994 *
1995 * Returns:
1996 *      0 = success
1997 *
1998 * Context:
1999 *      Kernel context.
2000 */
2001 static int
2002 qla2x00_configure_hba(scsi_qla_host_t *vha)
2003 {
2004         int       rval;
2005         uint16_t      loop_id;
2006         uint16_t      topo;
2007         uint16_t      sw_cap;
2008         uint8_t       al_pa;
2009         uint8_t       area;
2010         uint8_t       domain;
2011         char            connect_type[22];
2012         struct qla_hw_data *ha = vha->hw;
2013
2014         /* Get host addresses. */
2015         rval = qla2x00_get_adapter_id(vha,
2016             &loop_id, &al_pa, &area, &domain, &topo, &sw_cap);
2017         if (rval != QLA_SUCCESS) {
2018                 if (LOOP_TRANSITION(vha) || atomic_read(&ha->loop_down_timer) ||
2019                     (rval == QLA_COMMAND_ERROR && loop_id == 0x7)) {
2020                         DEBUG2(printk("%s(%ld) Loop is in a transition state\n",
2021                             __func__, vha->host_no));
2022                 } else {
2023                         qla_printk(KERN_WARNING, ha,
2024                             "ERROR -- Unable to get host loop ID.\n");
2025                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2026                 }
2027                 return (rval);
2028         }
2029
2030         if (topo == 4) {
2031                 qla_printk(KERN_INFO, ha,
2032                         "Cannot get topology - retrying.\n");
2033                 return (QLA_FUNCTION_FAILED);
2034         }
2035
2036         vha->loop_id = loop_id;
2037
2038         /* initialize */
2039         ha->min_external_loopid = SNS_FIRST_LOOP_ID;
2040         ha->operating_mode = LOOP;
2041         ha->switch_cap = 0;
2042
2043         switch (topo) {
2044         case 0:
2045                 DEBUG3(printk("scsi(%ld): HBA in NL topology.\n",
2046                     vha->host_no));
2047                 ha->current_topology = ISP_CFG_NL;
2048                 strcpy(connect_type, "(Loop)");
2049                 break;
2050
2051         case 1:
2052                 DEBUG3(printk("scsi(%ld): HBA in FL topology.\n",
2053                     vha->host_no));
2054                 ha->switch_cap = sw_cap;
2055                 ha->current_topology = ISP_CFG_FL;
2056                 strcpy(connect_type, "(FL_Port)");
2057                 break;
2058
2059         case 2:
2060                 DEBUG3(printk("scsi(%ld): HBA in N P2P topology.\n",
2061                     vha->host_no));
2062                 ha->operating_mode = P2P;
2063                 ha->current_topology = ISP_CFG_N;
2064                 strcpy(connect_type, "(N_Port-to-N_Port)");
2065                 break;
2066
2067         case 3:
2068                 DEBUG3(printk("scsi(%ld): HBA in F P2P topology.\n",
2069                     vha->host_no));
2070                 ha->switch_cap = sw_cap;
2071                 ha->operating_mode = P2P;
2072                 ha->current_topology = ISP_CFG_F;
2073                 strcpy(connect_type, "(F_Port)");
2074                 break;
2075
2076         default:
2077                 DEBUG3(printk("scsi(%ld): HBA in unknown topology %x. "
2078                     "Using NL.\n",
2079                     vha->host_no, topo));
2080                 ha->current_topology = ISP_CFG_NL;
2081                 strcpy(connect_type, "(Loop)");
2082                 break;
2083         }
2084
2085         /* Save Host port and loop ID. */
2086         /* byte order - Big Endian */
2087         vha->d_id.b.domain = domain;
2088         vha->d_id.b.area = area;
2089         vha->d_id.b.al_pa = al_pa;
2090
2091         if (!vha->flags.init_done)
2092                 qla_printk(KERN_INFO, ha,
2093                     "Topology - %s, Host Loop address 0x%x\n",
2094                     connect_type, vha->loop_id);
2095
2096         if (rval) {
2097                 DEBUG2_3(printk("scsi(%ld): FAILED.\n", vha->host_no));
2098         } else {
2099                 DEBUG3(printk("scsi(%ld): exiting normally.\n", vha->host_no));
2100         }
2101
2102         return(rval);
2103 }
2104
2105 inline void
2106 qla2x00_set_model_info(scsi_qla_host_t *vha, uint8_t *model, size_t len,
2107         char *def)
2108 {
2109         char *st, *en;
2110         uint16_t index;
2111         struct qla_hw_data *ha = vha->hw;
2112         int use_tbl = !IS_QLA24XX_TYPE(ha) && !IS_QLA25XX(ha) &&
2113             !IS_QLA8XXX_TYPE(ha);
2114
2115         if (memcmp(model, BINZERO, len) != 0) {
2116                 strncpy(ha->model_number, model, len);
2117                 st = en = ha->model_number;
2118                 en += len - 1;
2119                 while (en > st) {
2120                         if (*en != 0x20 && *en != 0x00)
2121                                 break;
2122                         *en-- = '\0';
2123                 }
2124
2125                 index = (ha->pdev->subsystem_device & 0xff);
2126                 if (use_tbl &&
2127                     ha->pdev->subsystem_vendor == PCI_VENDOR_ID_QLOGIC &&
2128                     index < QLA_MODEL_NAMES)
2129                         strncpy(ha->model_desc,
2130                             qla2x00_model_name[index * 2 + 1],
2131                             sizeof(ha->model_desc) - 1);
2132         } else {
2133                 index = (ha->pdev->subsystem_device & 0xff);
2134                 if (use_tbl &&
2135                     ha->pdev->subsystem_vendor == PCI_VENDOR_ID_QLOGIC &&
2136                     index < QLA_MODEL_NAMES) {
2137                         strcpy(ha->model_number,
2138                             qla2x00_model_name[index * 2]);
2139                         strncpy(ha->model_desc,
2140                             qla2x00_model_name[index * 2 + 1],
2141                             sizeof(ha->model_desc) - 1);
2142                 } else {
2143                         strcpy(ha->model_number, def);
2144                 }
2145         }
2146         if (IS_FWI2_CAPABLE(ha))
2147                 qla2xxx_get_vpd_field(vha, "\x82", ha->model_desc,
2148                     sizeof(ha->model_desc));
2149 }
2150
2151 /* On sparc systems, obtain port and node WWN from firmware
2152  * properties.
2153  */
2154 static void qla2xxx_nvram_wwn_from_ofw(scsi_qla_host_t *vha, nvram_t *nv)
2155 {
2156 #ifdef CONFIG_SPARC
2157         struct qla_hw_data *ha = vha->hw;
2158         struct pci_dev *pdev = ha->pdev;
2159         struct device_node *dp = pci_device_to_OF_node(pdev);
2160         const u8 *val;
2161         int len;
2162
2163         val = of_get_property(dp, "port-wwn", &len);
2164         if (val && len >= WWN_SIZE)
2165                 memcpy(nv->port_name, val, WWN_SIZE);
2166
2167         val = of_get_property(dp, "node-wwn", &len);
2168         if (val && len >= WWN_SIZE)
2169                 memcpy(nv->node_name, val, WWN_SIZE);
2170 #endif
2171 }
2172
2173 /*
2174 * NVRAM configuration for ISP 2xxx
2175 *
2176 * Input:
2177 *      ha                = adapter block pointer.
2178 *
2179 * Output:
2180 *      initialization control block in response_ring
2181 *      host adapters parameters in host adapter block
2182 *
2183 * Returns:
2184 *      0 = success.
2185 */
2186 int
2187 qla2x00_nvram_config(scsi_qla_host_t *vha)
2188 {
2189         int             rval;
2190         uint8_t         chksum = 0;
2191         uint16_t        cnt;
2192         uint8_t         *dptr1, *dptr2;
2193         struct qla_hw_data *ha = vha->hw;
2194         init_cb_t       *icb = ha->init_cb;
2195         nvram_t         *nv = ha->nvram;
2196         uint8_t         *ptr = ha->nvram;
2197         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2198
2199         rval = QLA_SUCCESS;
2200
2201         /* Determine NVRAM starting address. */
2202         ha->nvram_size = sizeof(nvram_t);
2203         ha->nvram_base = 0;
2204         if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA2300(ha))
2205                 if ((RD_REG_WORD(&reg->ctrl_status) >> 14) == 1)
2206                         ha->nvram_base = 0x80;
2207
2208         /* Get NVRAM data and calculate checksum. */
2209         ha->isp_ops->read_nvram(vha, ptr, ha->nvram_base, ha->nvram_size);
2210         for (cnt = 0, chksum = 0; cnt < ha->nvram_size; cnt++)
2211                 chksum += *ptr++;
2212
2213         DEBUG5(printk("scsi(%ld): Contents of NVRAM\n", vha->host_no));
2214         DEBUG5(qla2x00_dump_buffer((uint8_t *)nv, ha->nvram_size));
2215
2216         /* Bad NVRAM data, set defaults parameters. */
2217         if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' ||
2218             nv->id[2] != 'P' || nv->id[3] != ' ' || nv->nvram_version < 1) {
2219                 /* Reset NVRAM data. */
2220                 qla_printk(KERN_WARNING, ha, "Inconsistent NVRAM detected: "
2221                     "checksum=0x%x id=%c version=0x%x.\n", chksum, nv->id[0],
2222                     nv->nvram_version);
2223                 qla_printk(KERN_WARNING, ha, "Falling back to functioning (yet "
2224                     "invalid -- WWPN) defaults.\n");
2225
2226                 /*
2227                  * Set default initialization control block.
2228                  */
2229                 memset(nv, 0, ha->nvram_size);
2230                 nv->parameter_block_version = ICB_VERSION;
2231
2232                 if (IS_QLA23XX(ha)) {
2233                         nv->firmware_options[0] = BIT_2 | BIT_1;
2234                         nv->firmware_options[1] = BIT_7 | BIT_5;
2235                         nv->add_firmware_options[0] = BIT_5;
2236                         nv->add_firmware_options[1] = BIT_5 | BIT_4;
2237                         nv->frame_payload_size = __constant_cpu_to_le16(2048);
2238                         nv->special_options[1] = BIT_7;
2239                 } else if (IS_QLA2200(ha)) {
2240                         nv->firmware_options[0] = BIT_2 | BIT_1;
2241                         nv->firmware_options[1] = BIT_7 | BIT_5;
2242                         nv->add_firmware_options[0] = BIT_5;
2243                         nv->add_firmware_options[1] = BIT_5 | BIT_4;
2244                         nv->frame_payload_size = __constant_cpu_to_le16(1024);
2245                 } else if (IS_QLA2100(ha)) {
2246                         nv->firmware_options[0] = BIT_3 | BIT_1;
2247                         nv->firmware_options[1] = BIT_5;
2248                         nv->frame_payload_size = __constant_cpu_to_le16(1024);
2249                 }
2250
2251                 nv->max_iocb_allocation = __constant_cpu_to_le16(256);
2252                 nv->execution_throttle = __constant_cpu_to_le16(16);
2253                 nv->retry_count = 8;
2254                 nv->retry_delay = 1;
2255
2256                 nv->port_name[0] = 33;
2257                 nv->port_name[3] = 224;
2258                 nv->port_name[4] = 139;
2259
2260                 qla2xxx_nvram_wwn_from_ofw(vha, nv);
2261
2262                 nv->login_timeout = 4;
2263
2264                 /*
2265                  * Set default host adapter parameters
2266                  */
2267                 nv->host_p[1] = BIT_2;
2268                 nv->reset_delay = 5;
2269                 nv->port_down_retry_count = 8;
2270                 nv->max_luns_per_target = __constant_cpu_to_le16(8);
2271                 nv->link_down_timeout = 60;
2272
2273                 rval = 1;
2274         }
2275
2276 #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
2277         /*
2278          * The SN2 does not provide BIOS emulation which means you can't change
2279          * potentially bogus BIOS settings. Force the use of default settings
2280          * for link rate and frame size.  Hope that the rest of the settings
2281          * are valid.
2282          */
2283         if (ia64_platform_is("sn2")) {
2284                 nv->frame_payload_size = __constant_cpu_to_le16(2048);
2285                 if (IS_QLA23XX(ha))
2286                         nv->special_options[1] = BIT_7;
2287         }
2288 #endif
2289
2290         /* Reset Initialization control block */
2291         memset(icb, 0, ha->init_cb_size);
2292
2293         /*
2294          * Setup driver NVRAM options.
2295          */
2296         nv->firmware_options[0] |= (BIT_6 | BIT_1);
2297         nv->firmware_options[0] &= ~(BIT_5 | BIT_4);
2298         nv->firmware_options[1] |= (BIT_5 | BIT_0);
2299         nv->firmware_options[1] &= ~BIT_4;
2300
2301         if (IS_QLA23XX(ha)) {
2302                 nv->firmware_options[0] |= BIT_2;
2303                 nv->firmware_options[0] &= ~BIT_3;
2304                 nv->firmware_options[0] &= ~BIT_6;
2305                 nv->add_firmware_options[1] |= BIT_5 | BIT_4;
2306
2307                 if (IS_QLA2300(ha)) {
2308                         if (ha->fb_rev == FPM_2310) {
2309                                 strcpy(ha->model_number, "QLA2310");
2310                         } else {
2311                                 strcpy(ha->model_number, "QLA2300");
2312                         }
2313                 } else {
2314                         qla2x00_set_model_info(vha, nv->model_number,
2315                             sizeof(nv->model_number), "QLA23xx");
2316                 }
2317         } else if (IS_QLA2200(ha)) {
2318                 nv->firmware_options[0] |= BIT_2;
2319                 /*
2320                  * 'Point-to-point preferred, else loop' is not a safe
2321                  * connection mode setting.
2322                  */
2323                 if ((nv->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) ==
2324                     (BIT_5 | BIT_4)) {
2325                         /* Force 'loop preferred, else point-to-point'. */
2326                         nv->add_firmware_options[0] &= ~(BIT_6 | BIT_5 | BIT_4);
2327                         nv->add_firmware_options[0] |= BIT_5;
2328                 }
2329                 strcpy(ha->model_number, "QLA22xx");
2330         } else /*if (IS_QLA2100(ha))*/ {
2331                 strcpy(ha->model_number, "QLA2100");
2332         }
2333
2334         /*
2335          * Copy over NVRAM RISC parameter block to initialization control block.
2336          */
2337         dptr1 = (uint8_t *)icb;
2338         dptr2 = (uint8_t *)&nv->parameter_block_version;
2339         cnt = (uint8_t *)&icb->request_q_outpointer - (uint8_t *)&icb->version;
2340         while (cnt--)
2341                 *dptr1++ = *dptr2++;
2342
2343         /* Copy 2nd half. */
2344         dptr1 = (uint8_t *)icb->add_firmware_options;
2345         cnt = (uint8_t *)icb->reserved_3 - (uint8_t *)icb->add_firmware_options;
2346         while (cnt--)
2347                 *dptr1++ = *dptr2++;
2348
2349         /* Use alternate WWN? */
2350         if (nv->host_p[1] & BIT_7) {
2351                 memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
2352                 memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
2353         }
2354
2355         /* Prepare nodename */
2356         if ((icb->firmware_options[1] & BIT_6) == 0) {
2357                 /*
2358                  * Firmware will apply the following mask if the nodename was
2359                  * not provided.
2360                  */
2361                 memcpy(icb->node_name, icb->port_name, WWN_SIZE);
2362                 icb->node_name[0] &= 0xF0;
2363         }
2364
2365         /*
2366          * Set host adapter parameters.
2367          */
2368         if (nv->host_p[0] & BIT_7)
2369                 ql2xextended_error_logging = 1;
2370         ha->flags.disable_risc_code_load = ((nv->host_p[0] & BIT_4) ? 1 : 0);
2371         /* Always load RISC code on non ISP2[12]00 chips. */
2372         if (!IS_QLA2100(ha) && !IS_QLA2200(ha))
2373                 ha->flags.disable_risc_code_load = 0;
2374         ha->flags.enable_lip_reset = ((nv->host_p[1] & BIT_1) ? 1 : 0);
2375         ha->flags.enable_lip_full_login = ((nv->host_p[1] & BIT_2) ? 1 : 0);
2376         ha->flags.enable_target_reset = ((nv->host_p[1] & BIT_3) ? 1 : 0);
2377         ha->flags.enable_led_scheme = (nv->special_options[1] & BIT_4) ? 1 : 0;
2378         ha->flags.disable_serdes = 0;
2379
2380         ha->operating_mode =
2381             (icb->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) >> 4;
2382
2383         memcpy(ha->fw_seriallink_options, nv->seriallink_options,
2384             sizeof(ha->fw_seriallink_options));
2385
2386         /* save HBA serial number */
2387         ha->serial0 = icb->port_name[5];
2388         ha->serial1 = icb->port_name[6];
2389         ha->serial2 = icb->port_name[7];
2390         memcpy(vha->node_name, icb->node_name, WWN_SIZE);
2391         memcpy(vha->port_name, icb->port_name, WWN_SIZE);
2392
2393         icb->execution_throttle = __constant_cpu_to_le16(0xFFFF);
2394
2395         ha->retry_count = nv->retry_count;
2396
2397         /* Set minimum login_timeout to 4 seconds. */
2398         if (nv->login_timeout != ql2xlogintimeout)
2399                 nv->login_timeout = ql2xlogintimeout;
2400         if (nv->login_timeout < 4)
2401                 nv->login_timeout = 4;
2402         ha->login_timeout = nv->login_timeout;
2403         icb->login_timeout = nv->login_timeout;
2404
2405         /* Set minimum RATOV to 100 tenths of a second. */
2406         ha->r_a_tov = 100;
2407
2408         ha->loop_reset_delay = nv->reset_delay;
2409
2410         /* Link Down Timeout = 0:
2411          *
2412          *      When Port Down timer expires we will start returning
2413          *      I/O's to OS with "DID_NO_CONNECT".
2414          *
2415          * Link Down Timeout != 0:
2416          *
2417          *       The driver waits for the link to come up after link down
2418          *       before returning I/Os to OS with "DID_NO_CONNECT".
2419          */
2420         if (nv->link_down_timeout == 0) {
2421                 ha->loop_down_abort_time =
2422                     (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
2423         } else {
2424                 ha->link_down_timeout =  nv->link_down_timeout;
2425                 ha->loop_down_abort_time =
2426                     (LOOP_DOWN_TIME - ha->link_down_timeout);
2427         }
2428
2429         /*
2430          * Need enough time to try and get the port back.
2431          */
2432         ha->port_down_retry_count = nv->port_down_retry_count;
2433         if (qlport_down_retry)
2434                 ha->port_down_retry_count = qlport_down_retry;
2435         /* Set login_retry_count */
2436         ha->login_retry_count  = nv->retry_count;
2437         if (ha->port_down_retry_count == nv->port_down_retry_count &&
2438             ha->port_down_retry_count > 3)
2439                 ha->login_retry_count = ha->port_down_retry_count;
2440         else if (ha->port_down_retry_count > (int)ha->login_retry_count)
2441                 ha->login_retry_count = ha->port_down_retry_count;
2442         if (ql2xloginretrycount)
2443                 ha->login_retry_count = ql2xloginretrycount;
2444
2445         icb->lun_enables = __constant_cpu_to_le16(0);
2446         icb->command_resource_count = 0;
2447         icb->immediate_notify_resource_count = 0;
2448         icb->timeout = __constant_cpu_to_le16(0);
2449
2450         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2451                 /* Enable RIO */
2452                 icb->firmware_options[0] &= ~BIT_3;
2453                 icb->add_firmware_options[0] &=
2454                     ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
2455                 icb->add_firmware_options[0] |= BIT_2;
2456                 icb->response_accumulation_timer = 3;
2457                 icb->interrupt_delay_timer = 5;
2458
2459                 vha->flags.process_response_queue = 1;
2460         } else {
2461                 /* Enable ZIO. */
2462                 if (!vha->flags.init_done) {
2463                         ha->zio_mode = icb->add_firmware_options[0] &
2464                             (BIT_3 | BIT_2 | BIT_1 | BIT_0);
2465                         ha->zio_timer = icb->interrupt_delay_timer ?
2466                             icb->interrupt_delay_timer: 2;
2467                 }
2468                 icb->add_firmware_options[0] &=
2469                     ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
2470                 vha->flags.process_response_queue = 0;
2471                 if (ha->zio_mode != QLA_ZIO_DISABLED) {
2472                         ha->zio_mode = QLA_ZIO_MODE_6;
2473
2474                         DEBUG2(printk("scsi(%ld): ZIO mode %d enabled; timer "
2475                             "delay (%d us).\n", vha->host_no, ha->zio_mode,
2476                             ha->zio_timer * 100));
2477                         qla_printk(KERN_INFO, ha,
2478                             "ZIO mode %d enabled; timer delay (%d us).\n",
2479                             ha->zio_mode, ha->zio_timer * 100);
2480
2481                         icb->add_firmware_options[0] |= (uint8_t)ha->zio_mode;
2482                         icb->interrupt_delay_timer = (uint8_t)ha->zio_timer;
2483                         vha->flags.process_response_queue = 1;
2484                 }
2485         }
2486
2487         if (rval) {
2488                 DEBUG2_3(printk(KERN_WARNING
2489                     "scsi(%ld): NVRAM configuration failed!\n", vha->host_no));
2490         }
2491         return (rval);
2492 }
2493
2494 static void
2495 qla2x00_rport_del(void *data)
2496 {
2497         fc_port_t *fcport = data;
2498         struct fc_rport *rport;
2499
2500         spin_lock_irq(fcport->vha->host->host_lock);
2501         rport = fcport->drport ? fcport->drport: fcport->rport;
2502         fcport->drport = NULL;
2503         spin_unlock_irq(fcport->vha->host->host_lock);
2504         if (rport)
2505                 fc_remote_port_delete(rport);
2506 }
2507
2508 /**
2509  * qla2x00_alloc_fcport() - Allocate a generic fcport.
2510  * @ha: HA context
2511  * @flags: allocation flags
2512  *
2513  * Returns a pointer to the allocated fcport, or NULL, if none available.
2514  */
2515 fc_port_t *
2516 qla2x00_alloc_fcport(scsi_qla_host_t *vha, gfp_t flags)
2517 {
2518         fc_port_t *fcport;
2519
2520         fcport = kzalloc(sizeof(fc_port_t), flags);
2521         if (!fcport)
2522                 return NULL;
2523
2524         /* Setup fcport template structure. */
2525         fcport->vha = vha;
2526         fcport->vp_idx = vha->vp_idx;
2527         fcport->port_type = FCT_UNKNOWN;
2528         fcport->loop_id = FC_NO_LOOP_ID;
2529         atomic_set(&fcport->state, FCS_UNCONFIGURED);
2530         fcport->supported_classes = FC_COS_UNSPECIFIED;
2531
2532         return fcport;
2533 }
2534
2535 /*
2536  * qla2x00_configure_loop
2537  *      Updates Fibre Channel Device Database with what is actually on loop.
2538  *
2539  * Input:
2540  *      ha                = adapter block pointer.
2541  *
2542  * Returns:
2543  *      0 = success.
2544  *      1 = error.
2545  *      2 = database was full and device was not configured.
2546  */
2547 static int
2548 qla2x00_configure_loop(scsi_qla_host_t *vha)
2549 {
2550         int  rval;
2551         unsigned long flags, save_flags;
2552         struct qla_hw_data *ha = vha->hw;
2553         rval = QLA_SUCCESS;
2554
2555         /* Get Initiator ID */
2556         if (test_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags)) {
2557                 rval = qla2x00_configure_hba(vha);
2558                 if (rval != QLA_SUCCESS) {
2559                         DEBUG(printk("scsi(%ld): Unable to configure HBA.\n",
2560                             vha->host_no));
2561                         return (rval);
2562                 }
2563         }
2564
2565         save_flags = flags = vha->dpc_flags;
2566         DEBUG(printk("scsi(%ld): Configure loop -- dpc flags =0x%lx\n",
2567             vha->host_no, flags));
2568
2569         /*
2570          * If we have both an RSCN and PORT UPDATE pending then handle them
2571          * both at the same time.
2572          */
2573         clear_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
2574         clear_bit(RSCN_UPDATE, &vha->dpc_flags);
2575
2576         qla2x00_get_data_rate(vha);
2577
2578         /* Determine what we need to do */
2579         if (ha->current_topology == ISP_CFG_FL &&
2580             (test_bit(LOCAL_LOOP_UPDATE, &flags))) {
2581
2582                 vha->flags.rscn_queue_overflow = 1;
2583                 set_bit(RSCN_UPDATE, &flags);
2584
2585         } else if (ha->current_topology == ISP_CFG_F &&
2586             (test_bit(LOCAL_LOOP_UPDATE, &flags))) {
2587
2588                 vha->flags.rscn_queue_overflow = 1;
2589                 set_bit(RSCN_UPDATE, &flags);
2590                 clear_bit(LOCAL_LOOP_UPDATE, &flags);
2591
2592         } else if (ha->current_topology == ISP_CFG_N) {
2593                 clear_bit(RSCN_UPDATE, &flags);
2594
2595         } else if (!vha->flags.online ||
2596             (test_bit(ABORT_ISP_ACTIVE, &flags))) {
2597
2598                 vha->flags.rscn_queue_overflow = 1;
2599                 set_bit(RSCN_UPDATE, &flags);
2600                 set_bit(LOCAL_LOOP_UPDATE, &flags);
2601         }
2602
2603         if (test_bit(LOCAL_LOOP_UPDATE, &flags)) {
2604                 if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
2605                         rval = QLA_FUNCTION_FAILED;
2606                 else
2607                         rval = qla2x00_configure_local_loop(vha);
2608         }
2609
2610         if (rval == QLA_SUCCESS && test_bit(RSCN_UPDATE, &flags)) {
2611                 if (LOOP_TRANSITION(vha))
2612                         rval = QLA_FUNCTION_FAILED;
2613                 else
2614                         rval = qla2x00_configure_fabric(vha);
2615         }
2616
2617         if (rval == QLA_SUCCESS) {
2618                 if (atomic_read(&vha->loop_down_timer) ||
2619                     test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
2620                         rval = QLA_FUNCTION_FAILED;
2621                 } else {
2622                         atomic_set(&vha->loop_state, LOOP_READY);
2623
2624                         DEBUG(printk("scsi(%ld): LOOP READY\n", vha->host_no));
2625                 }
2626         }
2627
2628         if (rval) {
2629                 DEBUG2_3(printk("%s(%ld): *** FAILED ***\n",
2630                     __func__, vha->host_no));
2631         } else {
2632                 DEBUG3(printk("%s: exiting normally\n", __func__));
2633         }
2634
2635         /* Restore state if a resync event occurred during processing */
2636         if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
2637                 if (test_bit(LOCAL_LOOP_UPDATE, &save_flags))
2638                         set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
2639                 if (test_bit(RSCN_UPDATE, &save_flags)) {
2640                         set_bit(RSCN_UPDATE, &vha->dpc_flags);
2641                         if (!IS_ALOGIO_CAPABLE(ha))
2642                                 vha->flags.rscn_queue_overflow = 1;
2643                 }
2644         }
2645
2646         return (rval);
2647 }
2648
2649
2650
2651 /*
2652  * qla2x00_configure_local_loop
2653  *      Updates Fibre Channel Device Database with local loop devices.
2654  *
2655  * Input:
2656  *      ha = adapter block pointer.
2657  *
2658  * Returns:
2659  *      0 = success.
2660  */
2661 static int
2662 qla2x00_configure_local_loop(scsi_qla_host_t *vha)
2663 {
2664         int             rval, rval2;
2665         int             found_devs;
2666         int             found;
2667         fc_port_t       *fcport, *new_fcport;
2668
2669         uint16_t        index;
2670         uint16_t        entries;
2671         char            *id_iter;
2672         uint16_t        loop_id;
2673         uint8_t         domain, area, al_pa;
2674         struct qla_hw_data *ha = vha->hw;
2675
2676         found_devs = 0;
2677         new_fcport = NULL;
2678         entries = MAX_FIBRE_DEVICES;
2679
2680         DEBUG3(printk("scsi(%ld): Getting FCAL position map\n", vha->host_no));
2681         DEBUG3(qla2x00_get_fcal_position_map(vha, NULL));
2682
2683         /* Get list of logged in devices. */
2684         memset(ha->gid_list, 0, GID_LIST_SIZE);
2685         rval = qla2x00_get_id_list(vha, ha->gid_list, ha->gid_list_dma,
2686             &entries);
2687         if (rval != QLA_SUCCESS)
2688                 goto cleanup_allocation;
2689
2690         DEBUG3(printk("scsi(%ld): Entries in ID list (%d)\n",
2691             vha->host_no, entries));
2692         DEBUG3(qla2x00_dump_buffer((uint8_t *)ha->gid_list,
2693             entries * sizeof(struct gid_list_info)));
2694
2695         /* Allocate temporary fcport for any new fcports discovered. */
2696         new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
2697         if (new_fcport == NULL) {
2698                 rval = QLA_MEMORY_ALLOC_FAILED;
2699                 goto cleanup_allocation;
2700         }
2701         new_fcport->flags &= ~FCF_FABRIC_DEVICE;
2702
2703         /*
2704          * Mark local devices that were present with FCF_DEVICE_LOST for now.
2705          */
2706         list_for_each_entry(fcport, &vha->vp_fcports, list) {
2707                 if (atomic_read(&fcport->state) == FCS_ONLINE &&
2708                     fcport->port_type != FCT_BROADCAST &&
2709                     (fcport->flags & FCF_FABRIC_DEVICE) == 0) {
2710
2711                         DEBUG(printk("scsi(%ld): Marking port lost, "
2712                             "loop_id=0x%04x\n",
2713                             vha->host_no, fcport->loop_id));
2714
2715                         atomic_set(&fcport->state, FCS_DEVICE_LOST);
2716                 }
2717         }
2718
2719         /* Add devices to port list. */
2720         id_iter = (char *)ha->gid_list;
2721         for (index = 0; index < entries; index++) {
2722                 domain = ((struct gid_list_info *)id_iter)->domain;
2723                 area = ((struct gid_list_info *)id_iter)->area;
2724                 al_pa = ((struct gid_list_info *)id_iter)->al_pa;
2725                 if (IS_QLA2100(ha) || IS_QLA2200(ha))
2726                         loop_id = (uint16_t)
2727                             ((struct gid_list_info *)id_iter)->loop_id_2100;
2728                 else
2729                         loop_id = le16_to_cpu(
2730                             ((struct gid_list_info *)id_iter)->loop_id);
2731                 id_iter += ha->gid_list_info_size;
2732
2733                 /* Bypass reserved domain fields. */
2734                 if ((domain & 0xf0) == 0xf0)
2735                         continue;
2736
2737                 /* Bypass if not same domain and area of adapter. */
2738                 if (area && domain &&
2739                     (area != vha->d_id.b.area || domain != vha->d_id.b.domain))
2740                         continue;
2741
2742                 /* Bypass invalid local loop ID. */
2743                 if (loop_id > LAST_LOCAL_LOOP_ID)
2744                         continue;
2745
2746                 /* Fill in member data. */
2747                 new_fcport->d_id.b.domain = domain;
2748                 new_fcport->d_id.b.area = area;
2749                 new_fcport->d_id.b.al_pa = al_pa;
2750                 new_fcport->loop_id = loop_id;
2751                 new_fcport->vp_idx = vha->vp_idx;
2752                 rval2 = qla2x00_get_port_database(vha, new_fcport, 0);
2753                 if (rval2 != QLA_SUCCESS) {
2754                         DEBUG2(printk("scsi(%ld): Failed to retrieve fcport "
2755                             "information -- get_port_database=%x, "
2756                             "loop_id=0x%04x\n",
2757                             vha->host_no, rval2, new_fcport->loop_id));
2758                         DEBUG2(printk("scsi(%ld): Scheduling resync...\n",
2759                             vha->host_no));
2760                         set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
2761                         continue;
2762                 }
2763
2764                 /* Check for matching device in port list. */
2765                 found = 0;
2766                 fcport = NULL;
2767                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
2768                         if (memcmp(new_fcport->port_name, fcport->port_name,
2769                             WWN_SIZE))
2770                                 continue;
2771
2772                         fcport->flags &= ~FCF_FABRIC_DEVICE;
2773                         fcport->loop_id = new_fcport->loop_id;
2774                         fcport->port_type = new_fcport->port_type;
2775                         fcport->d_id.b24 = new_fcport->d_id.b24;
2776                         memcpy(fcport->node_name, new_fcport->node_name,
2777                             WWN_SIZE);
2778
2779                         found++;
2780                         break;
2781                 }
2782
2783                 if (!found) {
2784                         /* New device, add to fcports list. */
2785                         if (vha->vp_idx) {
2786                                 new_fcport->vha = vha;
2787                                 new_fcport->vp_idx = vha->vp_idx;
2788                         }
2789                         list_add_tail(&new_fcport->list, &vha->vp_fcports);
2790
2791                         /* Allocate a new replacement fcport. */
2792                         fcport = new_fcport;
2793                         new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
2794                         if (new_fcport == NULL) {
2795                                 rval = QLA_MEMORY_ALLOC_FAILED;
2796                                 goto cleanup_allocation;
2797                         }
2798                         new_fcport->flags &= ~FCF_FABRIC_DEVICE;
2799                 }
2800
2801                 /* Base iIDMA settings on HBA port speed. */
2802                 fcport->fp_speed = ha->link_data_rate;
2803
2804                 qla2x00_update_fcport(vha, fcport);
2805
2806                 found_devs++;
2807         }
2808
2809 cleanup_allocation:
2810         kfree(new_fcport);
2811
2812         if (rval != QLA_SUCCESS) {
2813                 DEBUG2(printk("scsi(%ld): Configure local loop error exit: "
2814                     "rval=%x\n", vha->host_no, rval));
2815         }
2816
2817         return (rval);
2818 }
2819
2820 static void
2821 qla2x00_iidma_fcport(scsi_qla_host_t *vha, fc_port_t *fcport)
2822 {
2823 #define LS_UNKNOWN      2
2824         static char *link_speeds[] = { "1", "2", "?", "4", "8", "10" };
2825         char *link_speed;
2826         int rval;
2827         uint16_t mb[4];
2828         struct qla_hw_data *ha = vha->hw;
2829
2830         if (!IS_IIDMA_CAPABLE(ha))
2831                 return;
2832
2833         if (atomic_read(&fcport->state) != FCS_ONLINE)
2834                 return;
2835
2836         if (fcport->fp_speed == PORT_SPEED_UNKNOWN ||
2837             fcport->fp_speed > ha->link_data_rate)
2838                 return;
2839
2840         rval = qla2x00_set_idma_speed(vha, fcport->loop_id, fcport->fp_speed,
2841             mb);
2842         if (rval != QLA_SUCCESS) {
2843                 DEBUG2(printk("scsi(%ld): Unable to adjust iIDMA "
2844                     "%02x%02x%02x%02x%02x%02x%02x%02x -- %04x %x %04x %04x.\n",
2845                     vha->host_no, fcport->port_name[0], fcport->port_name[1],
2846                     fcport->port_name[2], fcport->port_name[3],
2847                     fcport->port_name[4], fcport->port_name[5],
2848                     fcport->port_name[6], fcport->port_name[7], rval,
2849                     fcport->fp_speed, mb[0], mb[1]));
2850         } else {
2851                 link_speed = link_speeds[LS_UNKNOWN];
2852                 if (fcport->fp_speed < 5)
2853                         link_speed = link_speeds[fcport->fp_speed];
2854                 else if (fcport->fp_speed == 0x13)
2855                         link_speed = link_speeds[5];
2856                 DEBUG2(qla_printk(KERN_INFO, ha,
2857                     "iIDMA adjusted to %s GB/s on "
2858                     "%02x%02x%02x%02x%02x%02x%02x%02x.\n",
2859                     link_speed, fcport->port_name[0],
2860                     fcport->port_name[1], fcport->port_name[2],
2861                     fcport->port_name[3], fcport->port_name[4],
2862                     fcport->port_name[5], fcport->port_name[6],
2863                     fcport->port_name[7]));
2864         }
2865 }
2866
2867 static void
2868 qla2x00_reg_remote_port(scsi_qla_host_t *vha, fc_port_t *fcport)
2869 {
2870         struct fc_rport_identifiers rport_ids;
2871         struct fc_rport *rport;
2872         struct qla_hw_data *ha = vha->hw;
2873
2874         qla2x00_rport_del(fcport);
2875
2876         rport_ids.node_name = wwn_to_u64(fcport->node_name);
2877         rport_ids.port_name = wwn_to_u64(fcport->port_name);
2878         rport_ids.port_id = fcport->d_id.b.domain << 16 |
2879             fcport->d_id.b.area << 8 | fcport->d_id.b.al_pa;
2880         rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
2881         fcport->rport = rport = fc_remote_port_add(vha->host, 0, &rport_ids);
2882         if (!rport) {
2883                 qla_printk(KERN_WARNING, ha,
2884                     "Unable to allocate fc remote port!\n");
2885                 return;
2886         }
2887         spin_lock_irq(fcport->vha->host->host_lock);
2888         *((fc_port_t **)rport->dd_data) = fcport;
2889         spin_unlock_irq(fcport->vha->host->host_lock);
2890
2891         rport->supported_classes = fcport->supported_classes;
2892
2893         rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
2894         if (fcport->port_type == FCT_INITIATOR)
2895                 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
2896         if (fcport->port_type == FCT_TARGET)
2897                 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
2898         fc_remote_port_rolechg(rport, rport_ids.roles);
2899 }
2900
2901 /*
2902  * qla2x00_update_fcport
2903  *      Updates device on list.
2904  *
2905  * Input:
2906  *      ha = adapter block pointer.
2907  *      fcport = port structure pointer.
2908  *
2909  * Return:
2910  *      0  - Success
2911  *  BIT_0 - error
2912  *
2913  * Context:
2914  *      Kernel context.
2915  */
2916 void
2917 qla2x00_update_fcport(scsi_qla_host_t *vha, fc_port_t *fcport)
2918 {
2919         fcport->vha = vha;
2920         fcport->login_retry = 0;
2921         fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
2922
2923         qla2x00_iidma_fcport(vha, fcport);
2924         atomic_set(&fcport->state, FCS_ONLINE);
2925         qla2x00_reg_remote_port(vha, fcport);
2926 }
2927
2928 /*
2929  * qla2x00_configure_fabric
2930  *      Setup SNS devices with loop ID's.
2931  *
2932  * Input:
2933  *      ha = adapter block pointer.
2934  *
2935  * Returns:
2936  *      0 = success.
2937  *      BIT_0 = error
2938  */
2939 static int
2940 qla2x00_configure_fabric(scsi_qla_host_t *vha)
2941 {
2942         int     rval, rval2;
2943         fc_port_t       *fcport, *fcptemp;
2944         uint16_t        next_loopid;
2945         uint16_t        mb[MAILBOX_REGISTER_COUNT];
2946         uint16_t        loop_id;
2947         LIST_HEAD(new_fcports);
2948         struct qla_hw_data *ha = vha->hw;
2949         struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
2950
2951         /* If FL port exists, then SNS is present */
2952         if (IS_FWI2_CAPABLE(ha))
2953                 loop_id = NPH_F_PORT;
2954         else
2955                 loop_id = SNS_FL_PORT;
2956         rval = qla2x00_get_port_name(vha, loop_id, vha->fabric_node_name, 1);
2957         if (rval != QLA_SUCCESS) {
2958                 DEBUG2(printk("scsi(%ld): MBC_GET_PORT_NAME Failed, No FL "
2959                     "Port\n", vha->host_no));
2960
2961                 vha->device_flags &= ~SWITCH_FOUND;
2962                 return (QLA_SUCCESS);
2963         }
2964         vha->device_flags |= SWITCH_FOUND;
2965
2966         /* Mark devices that need re-synchronization. */
2967         rval2 = qla2x00_device_resync(vha);
2968         if (rval2 == QLA_RSCNS_HANDLED) {
2969                 /* No point doing the scan, just continue. */
2970                 return (QLA_SUCCESS);
2971         }
2972         do {
2973                 /* FDMI support. */
2974                 if (ql2xfdmienable &&
2975                     test_and_clear_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags))
2976                         qla2x00_fdmi_register(vha);
2977
2978                 /* Ensure we are logged into the SNS. */
2979                 if (IS_FWI2_CAPABLE(ha))
2980                         loop_id = NPH_SNS;
2981                 else
2982                         loop_id = SIMPLE_NAME_SERVER;
2983                 ha->isp_ops->fabric_login(vha, loop_id, 0xff, 0xff,
2984                     0xfc, mb, BIT_1 | BIT_0);
2985                 if (mb[0] != MBS_COMMAND_COMPLETE) {
2986                         DEBUG2(qla_printk(KERN_INFO, ha,
2987                             "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x "
2988                             "mb[2]=%x mb[6]=%x mb[7]=%x\n", loop_id,
2989                             mb[0], mb[1], mb[2], mb[6], mb[7]));
2990                         return (QLA_SUCCESS);
2991                 }
2992
2993                 if (test_and_clear_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags)) {
2994                         if (qla2x00_rft_id(vha)) {
2995                                 /* EMPTY */
2996                                 DEBUG2(printk("scsi(%ld): Register FC-4 "
2997                                     "TYPE failed.\n", vha->host_no));
2998                         }
2999                         if (qla2x00_rff_id(vha)) {
3000                                 /* EMPTY */
3001                                 DEBUG2(printk("scsi(%ld): Register FC-4 "
3002                                     "Features failed.\n", vha->host_no));
3003                         }
3004                         if (qla2x00_rnn_id(vha)) {
3005                                 /* EMPTY */
3006                                 DEBUG2(printk("scsi(%ld): Register Node Name "
3007                                     "failed.\n", vha->host_no));
3008                         } else if (qla2x00_rsnn_nn(vha)) {
3009                                 /* EMPTY */
3010                                 DEBUG2(printk("scsi(%ld): Register Symbolic "
3011                                     "Node Name failed.\n", vha->host_no));
3012                         }
3013                 }
3014
3015                 rval = qla2x00_find_all_fabric_devs(vha, &new_fcports);
3016                 if (rval != QLA_SUCCESS)
3017                         break;
3018
3019                 /*
3020                  * Logout all previous fabric devices marked lost, except
3021                  * FCP2 devices.
3022                  */
3023                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
3024                         if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
3025                                 break;
3026
3027                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0)
3028                                 continue;
3029
3030                         if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
3031                                 qla2x00_mark_device_lost(vha, fcport,
3032                                     ql2xplogiabsentdevice, 0);
3033                                 if (fcport->loop_id != FC_NO_LOOP_ID &&
3034                                     (fcport->flags & FCF_FCP2_DEVICE) == 0 &&
3035                                     fcport->port_type != FCT_INITIATOR &&
3036                                     fcport->port_type != FCT_BROADCAST) {
3037                                         ha->isp_ops->fabric_logout(vha,
3038                                             fcport->loop_id,
3039                                             fcport->d_id.b.domain,
3040                                             fcport->d_id.b.area,
3041                                             fcport->d_id.b.al_pa);
3042                                         fcport->loop_id = FC_NO_LOOP_ID;
3043                                 }
3044                         }
3045                 }
3046
3047                 /* Starting free loop ID. */
3048                 next_loopid = ha->min_external_loopid;
3049
3050                 /*
3051                  * Scan through our port list and login entries that need to be
3052                  * logged in.
3053                  */
3054                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
3055                         if (atomic_read(&vha->loop_down_timer) ||
3056                             test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
3057                                 break;
3058
3059                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 ||
3060                             (fcport->flags & FCF_LOGIN_NEEDED) == 0)
3061                                 continue;
3062
3063                         if (fcport->loop_id == FC_NO_LOOP_ID) {
3064                                 fcport->loop_id = next_loopid;
3065                                 rval = qla2x00_find_new_loop_id(
3066                                     base_vha, fcport);
3067                                 if (rval != QLA_SUCCESS) {
3068                                         /* Ran out of IDs to use */
3069                                         break;
3070                                 }
3071                         }
3072                         /* Login and update database */
3073                         qla2x00_fabric_dev_login(vha, fcport, &next_loopid);
3074                 }
3075
3076                 /* Exit if out of loop IDs. */
3077                 if (rval != QLA_SUCCESS) {
3078                         break;
3079                 }
3080
3081                 /*
3082                  * Login and add the new devices to our port list.
3083                  */
3084                 list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) {
3085                         if (atomic_read(&vha->loop_down_timer) ||
3086                             test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
3087                                 break;
3088
3089                         /* Find a new loop ID to use. */
3090                         fcport->loop_id = next_loopid;
3091                         rval = qla2x00_find_new_loop_id(base_vha, fcport);
3092                         if (rval != QLA_SUCCESS) {
3093                                 /* Ran out of IDs to use */
3094                                 break;
3095                         }
3096
3097                         /* Login and update database */
3098                         qla2x00_fabric_dev_login(vha, fcport, &next_loopid);
3099
3100                         if (vha->vp_idx) {
3101                                 fcport->vha = vha;
3102                                 fcport->vp_idx = vha->vp_idx;
3103                         }
3104                         list_move_tail(&fcport->list, &vha->vp_fcports);
3105                 }
3106         } while (0);
3107
3108         /* Free all new device structures not processed. */
3109         list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) {
3110                 list_del(&fcport->list);
3111                 kfree(fcport);
3112         }
3113
3114         if (rval) {
3115                 DEBUG2(printk("scsi(%ld): Configure fabric error exit: "
3116                     "rval=%d\n", vha->host_no, rval));
3117         }
3118
3119         return (rval);
3120 }
3121
3122 /*
3123  * qla2x00_find_all_fabric_devs
3124  *
3125  * Input:
3126  *      ha = adapter block pointer.
3127  *      dev = database device entry pointer.
3128  *
3129  * Returns:
3130  *      0 = success.
3131  *
3132  * Context:
3133  *      Kernel context.
3134  */
3135 static int
3136 qla2x00_find_all_fabric_devs(scsi_qla_host_t *vha,
3137         struct list_head *new_fcports)
3138 {
3139         int             rval;
3140         uint16_t        loop_id;
3141         fc_port_t       *fcport, *new_fcport, *fcptemp;
3142         int             found;
3143
3144         sw_info_t       *swl;
3145         int             swl_idx;
3146         int             first_dev, last_dev;
3147         port_id_t       wrap = {}, nxt_d_id;
3148         struct qla_hw_data *ha = vha->hw;
3149         struct scsi_qla_host *vp, *base_vha = pci_get_drvdata(ha->pdev);
3150         struct scsi_qla_host *tvp;
3151
3152         rval = QLA_SUCCESS;
3153
3154         /* Try GID_PT to get device list, else GAN. */
3155         swl = kcalloc(MAX_FIBRE_DEVICES, sizeof(sw_info_t), GFP_KERNEL);
3156         if (!swl) {
3157                 /*EMPTY*/
3158                 DEBUG2(printk("scsi(%ld): GID_PT allocations failed, fallback "
3159                     "on GA_NXT\n", vha->host_no));
3160         } else {
3161                 if (qla2x00_gid_pt(vha, swl) != QLA_SUCCESS) {
3162                         kfree(swl);
3163                         swl = NULL;
3164                 } else if (qla2x00_gpn_id(vha, swl) != QLA_SUCCESS) {
3165                         kfree(swl);
3166                         swl = NULL;
3167                 } else if (qla2x00_gnn_id(vha, swl) != QLA_SUCCESS) {
3168                         kfree(swl);
3169                         swl = NULL;
3170                 } else if (ql2xiidmaenable &&
3171                     qla2x00_gfpn_id(vha, swl) == QLA_SUCCESS) {
3172                         qla2x00_gpsc(vha, swl);
3173                 }
3174
3175                 /* If other queries succeeded probe for FC-4 type */
3176                 if (swl)
3177                         qla2x00_gff_id(vha, swl);
3178         }
3179         swl_idx = 0;
3180
3181         /* Allocate temporary fcport for any new fcports discovered. */
3182         new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
3183         if (new_fcport == NULL) {
3184                 kfree(swl);
3185                 return (QLA_MEMORY_ALLOC_FAILED);
3186         }
3187         new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
3188         /* Set start port ID scan at adapter ID. */
3189         first_dev = 1;
3190         last_dev = 0;
3191
3192         /* Starting free loop ID. */
3193         loop_id = ha->min_external_loopid;
3194         for (; loop_id <= ha->max_loop_id; loop_id++) {
3195                 if (qla2x00_is_reserved_id(vha, loop_id))
3196                         continue;
3197
3198                 if (ha->current_topology == ISP_CFG_FL &&
3199                     (atomic_read(&vha->loop_down_timer) ||
3200                      LOOP_TRANSITION(vha))) {
3201                         atomic_set(&vha->loop_down_timer, 0);
3202                         set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
3203                         set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
3204                         break;
3205                 }
3206
3207                 if (swl != NULL) {
3208                         if (last_dev) {
3209                                 wrap.b24 = new_fcport->d_id.b24;
3210                         } else {
3211                                 new_fcport->d_id.b24 = swl[swl_idx].d_id.b24;
3212                                 memcpy(new_fcport->node_name,
3213                                     swl[swl_idx].node_name, WWN_SIZE);
3214                                 memcpy(new_fcport->port_name,
3215                                     swl[swl_idx].port_name, WWN_SIZE);
3216                                 memcpy(new_fcport->fabric_port_name,
3217                                     swl[swl_idx].fabric_port_name, WWN_SIZE);
3218                                 new_fcport->fp_speed = swl[swl_idx].fp_speed;
3219                                 new_fcport->fc4_type = swl[swl_idx].fc4_type;
3220
3221                                 if (swl[swl_idx].d_id.b.rsvd_1 != 0) {
3222                                         last_dev = 1;
3223                                 }
3224                                 swl_idx++;
3225                         }
3226                 } else {
3227                         /* Send GA_NXT to the switch */
3228                         rval = qla2x00_ga_nxt(vha, new_fcport);
3229                         if (rval != QLA_SUCCESS) {
3230                                 qla_printk(KERN_WARNING, ha,
3231                                     "SNS scan failed -- assuming zero-entry "
3232                                     "result...\n");
3233                                 list_for_each_entry_safe(fcport, fcptemp,
3234                                     new_fcports, list) {
3235                                         list_del(&fcport->list);
3236                                         kfree(fcport);
3237                                 }
3238                                 rval = QLA_SUCCESS;
3239                                 break;
3240                         }
3241                 }
3242
3243                 /* If wrap on switch device list, exit. */
3244                 if (first_dev) {
3245                         wrap.b24 = new_fcport->d_id.b24;
3246                         first_dev = 0;
3247                 } else if (new_fcport->d_id.b24 == wrap.b24) {
3248                         DEBUG2(printk("scsi(%ld): device wrap (%02x%02x%02x)\n",
3249                             vha->host_no, new_fcport->d_id.b.domain,
3250                             new_fcport->d_id.b.area, new_fcport->d_id.b.al_pa));
3251                         break;
3252                 }
3253
3254                 /* Bypass if same physical adapter. */
3255                 if (new_fcport->d_id.b24 == base_vha->d_id.b24)
3256                         continue;
3257
3258                 /* Bypass virtual ports of the same host. */
3259                 found = 0;
3260                 if (ha->num_vhosts) {
3261                         unsigned long flags;
3262
3263                         spin_lock_irqsave(&ha->vport_slock, flags);
3264                         list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) {
3265                                 if (new_fcport->d_id.b24 == vp->d_id.b24) {
3266                                         found = 1;
3267                                         break;
3268                                 }
3269                         }
3270                         spin_unlock_irqrestore(&ha->vport_slock, flags);
3271
3272                         if (found)
3273                                 continue;
3274                 }
3275
3276                 /* Bypass if same domain and area of adapter. */
3277                 if (((new_fcport->d_id.b24 & 0xffff00) ==
3278                     (vha->d_id.b24 & 0xffff00)) && ha->current_topology ==
3279                         ISP_CFG_FL)
3280                             continue;
3281
3282                 /* Bypass reserved domain fields. */
3283                 if ((new_fcport->d_id.b.domain & 0xf0) == 0xf0)
3284                         continue;
3285
3286                 /* Bypass ports whose FCP-4 type is not FCP_SCSI */
3287                 if (new_fcport->fc4_type != FC4_TYPE_FCP_SCSI &&
3288                     new_fcport->fc4_type != FC4_TYPE_UNKNOWN)
3289                         continue;
3290
3291                 /* Locate matching device in database. */
3292                 found = 0;
3293                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
3294                         if (memcmp(new_fcport->port_name, fcport->port_name,
3295                             WWN_SIZE))
3296                                 continue;
3297
3298                         found++;
3299
3300                         /* Update port state. */
3301                         memcpy(fcport->fabric_port_name,
3302                             new_fcport->fabric_port_name, WWN_SIZE);
3303                         fcport->fp_speed = new_fcport->fp_speed;
3304
3305                         /*
3306                          * If address the same and state FCS_ONLINE, nothing
3307                          * changed.
3308                          */
3309                         if (fcport->d_id.b24 == new_fcport->d_id.b24 &&
3310                             atomic_read(&fcport->state) == FCS_ONLINE) {
3311                                 break;
3312                         }
3313
3314                         /*
3315                          * If device was not a fabric device before.
3316                          */
3317                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) {
3318                                 fcport->d_id.b24 = new_fcport->d_id.b24;
3319                                 fcport->loop_id = FC_NO_LOOP_ID;
3320                                 fcport->flags |= (FCF_FABRIC_DEVICE |
3321                                     FCF_LOGIN_NEEDED);
3322                                 break;
3323                         }
3324
3325                         /*
3326                          * Port ID changed or device was marked to be updated;
3327                          * Log it out if still logged in and mark it for
3328                          * relogin later.
3329                          */
3330                         fcport->d_id.b24 = new_fcport->d_id.b24;
3331                         fcport->flags |= FCF_LOGIN_NEEDED;
3332                         if (fcport->loop_id != FC_NO_LOOP_ID &&
3333                             (fcport->flags & FCF_FCP2_DEVICE) == 0 &&
3334                             fcport->port_type != FCT_INITIATOR &&
3335                             fcport->port_type != FCT_BROADCAST) {
3336                                 ha->isp_ops->fabric_logout(vha, fcport->loop_id,
3337                                     fcport->d_id.b.domain, fcport->d_id.b.area,
3338                                     fcport->d_id.b.al_pa);
3339                                 fcport->loop_id = FC_NO_LOOP_ID;
3340                         }
3341
3342                         break;
3343                 }
3344
3345                 if (found)
3346                         continue;
3347                 /* If device was not in our fcports list, then add it. */
3348                 list_add_tail(&new_fcport->list, new_fcports);
3349
3350                 /* Allocate a new replacement fcport. */
3351                 nxt_d_id.b24 = new_fcport->d_id.b24;
3352                 new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
3353                 if (new_fcport == NULL) {
3354                         kfree(swl);
3355                         return (QLA_MEMORY_ALLOC_FAILED);
3356                 }
3357                 new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
3358                 new_fcport->d_id.b24 = nxt_d_id.b24;
3359         }
3360
3361         kfree(swl);
3362         kfree(new_fcport);
3363
3364         return (rval);
3365 }
3366
3367 /*
3368  * qla2x00_find_new_loop_id
3369  *      Scan through our port list and find a new usable loop ID.
3370  *
3371  * Input:
3372  *      ha:     adapter state pointer.
3373  *      dev:    port structure pointer.
3374  *
3375  * Returns:
3376  *      qla2x00 local function return status code.
3377  *
3378  * Context:
3379  *      Kernel context.
3380  */
3381 static int
3382 qla2x00_find_new_loop_id(scsi_qla_host_t *vha, fc_port_t *dev)
3383 {
3384         int     rval;
3385         int     found;
3386         fc_port_t *fcport;
3387         uint16_t first_loop_id;
3388         struct qla_hw_data *ha = vha->hw;
3389         struct scsi_qla_host *vp;
3390         struct scsi_qla_host *tvp;
3391         unsigned long flags = 0;
3392
3393         rval = QLA_SUCCESS;
3394
3395         /* Save starting loop ID. */
3396         first_loop_id = dev->loop_id;
3397
3398         for (;;) {
3399                 /* Skip loop ID if already used by adapter. */
3400                 if (dev->loop_id == vha->loop_id)
3401                         dev->loop_id++;
3402
3403                 /* Skip reserved loop IDs. */
3404                 while (qla2x00_is_reserved_id(vha, dev->loop_id))
3405                         dev->loop_id++;
3406
3407                 /* Reset loop ID if passed the end. */
3408                 if (dev->loop_id > ha->max_loop_id) {
3409                         /* first loop ID. */
3410                         dev->loop_id = ha->min_external_loopid;
3411                 }
3412
3413                 /* Check for loop ID being already in use. */
3414                 found = 0;
3415                 fcport = NULL;
3416
3417                 spin_lock_irqsave(&ha->vport_slock, flags);
3418                 list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) {
3419                         list_for_each_entry(fcport, &vp->vp_fcports, list) {
3420                                 if (fcport->loop_id == dev->loop_id &&
3421                                                                 fcport != dev) {
3422                                         /* ID possibly in use */
3423                                         found++;
3424                                         break;
3425                                 }
3426                         }
3427                         if (found)
3428                                 break;
3429                 }
3430                 spin_unlock_irqrestore(&ha->vport_slock, flags);
3431
3432                 /* If not in use then it is free to use. */
3433                 if (!found) {
3434                         break;
3435                 }
3436
3437                 /* ID in use. Try next value. */
3438                 dev->loop_id++;
3439
3440                 /* If wrap around. No free ID to use. */
3441                 if (dev->loop_id == first_loop_id) {
3442                         dev->loop_id = FC_NO_LOOP_ID;
3443                         rval = QLA_FUNCTION_FAILED;
3444                         break;
3445                 }
3446         }
3447
3448         return (rval);
3449 }
3450
3451 /*
3452  * qla2x00_device_resync
3453  *      Marks devices in the database that needs resynchronization.
3454  *
3455  * Input:
3456  *      ha = adapter block pointer.
3457  *
3458  * Context:
3459  *      Kernel context.
3460  */
3461 static int
3462 qla2x00_device_resync(scsi_qla_host_t *vha)
3463 {
3464         int     rval;
3465         uint32_t mask;
3466         fc_port_t *fcport;
3467         uint32_t rscn_entry;
3468         uint8_t rscn_out_iter;
3469         uint8_t format;
3470         port_id_t d_id = {};
3471
3472         rval = QLA_RSCNS_HANDLED;
3473
3474         while (vha->rscn_out_ptr != vha->rscn_in_ptr ||
3475             vha->flags.rscn_queue_overflow) {
3476
3477                 rscn_entry = vha->rscn_queue[vha->rscn_out_ptr];
3478                 format = MSB(MSW(rscn_entry));
3479                 d_id.b.domain = LSB(MSW(rscn_entry));
3480                 d_id.b.area = MSB(LSW(rscn_entry));
3481                 d_id.b.al_pa = LSB(LSW(rscn_entry));
3482
3483                 DEBUG(printk("scsi(%ld): RSCN queue entry[%d] = "
3484                     "[%02x/%02x%02x%02x].\n",
3485                     vha->host_no, vha->rscn_out_ptr, format, d_id.b.domain,
3486                     d_id.b.area, d_id.b.al_pa));
3487
3488                 vha->rscn_out_ptr++;
3489                 if (vha->rscn_out_ptr == MAX_RSCN_COUNT)
3490                         vha->rscn_out_ptr = 0;
3491
3492                 /* Skip duplicate entries. */
3493                 for (rscn_out_iter = vha->rscn_out_ptr;
3494                     !vha->flags.rscn_queue_overflow &&
3495                     rscn_out_iter != vha->rscn_in_ptr;
3496                     rscn_out_iter = (rscn_out_iter ==
3497                         (MAX_RSCN_COUNT - 1)) ? 0: rscn_out_iter + 1) {
3498
3499                         if (rscn_entry != vha->rscn_queue[rscn_out_iter])
3500                                 break;
3501
3502                         DEBUG(printk("scsi(%ld): Skipping duplicate RSCN queue "
3503                             "entry found at [%d].\n", vha->host_no,
3504                             rscn_out_iter));
3505
3506                         vha->rscn_out_ptr = rscn_out_iter;
3507                 }
3508
3509                 /* Queue overflow, set switch default case. */
3510                 if (vha->flags.rscn_queue_overflow) {
3511                         DEBUG(printk("scsi(%ld): device_resync: rscn "
3512                             "overflow.\n", vha->host_no));
3513
3514                         format = 3;
3515                         vha->flags.rscn_queue_overflow = 0;
3516                 }
3517
3518                 switch (format) {
3519                 case 0:
3520                         mask = 0xffffff;
3521                         break;
3522                 case 1:
3523                         mask = 0xffff00;
3524                         break;
3525                 case 2:
3526                         mask = 0xff0000;
3527                         break;
3528                 default:
3529                         mask = 0x0;
3530                         d_id.b24 = 0;
3531                         vha->rscn_out_ptr = vha->rscn_in_ptr;
3532                         break;
3533                 }
3534
3535                 rval = QLA_SUCCESS;
3536
3537                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
3538                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 ||
3539                             (fcport->d_id.b24 & mask) != d_id.b24 ||
3540                             fcport->port_type == FCT_BROADCAST)
3541                                 continue;
3542
3543                         if (atomic_read(&fcport->state) == FCS_ONLINE) {
3544                                 if (format != 3 ||
3545                                     fcport->port_type != FCT_INITIATOR) {
3546                                         qla2x00_mark_device_lost(vha, fcport,
3547                                             0, 0);
3548                                 }
3549                         }
3550                 }
3551         }
3552         return (rval);
3553 }
3554
3555 /*
3556  * qla2x00_fabric_dev_login
3557  *      Login fabric target device and update FC port database.
3558  *
3559  * Input:
3560  *      ha:             adapter state pointer.
3561  *      fcport:         port structure list pointer.
3562  *      next_loopid:    contains value of a new loop ID that can be used
3563  *                      by the next login attempt.
3564  *
3565  * Returns:
3566  *      qla2x00 local function return status code.
3567  *
3568  * Context:
3569  *      Kernel context.
3570  */
3571 static int
3572 qla2x00_fabric_dev_login(scsi_qla_host_t *vha, fc_port_t *fcport,
3573     uint16_t *next_loopid)
3574 {
3575         int     rval;
3576         int     retry;
3577         uint8_t opts;
3578         struct qla_hw_data *ha = vha->hw;
3579
3580         rval = QLA_SUCCESS;
3581         retry = 0;
3582
3583         if (IS_ALOGIO_CAPABLE(ha)) {
3584                 if (fcport->flags & FCF_ASYNC_SENT)
3585                         return rval;
3586                 fcport->flags |= FCF_ASYNC_SENT;
3587                 rval = qla2x00_post_async_login_work(vha, fcport, NULL);
3588                 if (!rval)
3589                         return rval;
3590         }
3591
3592         fcport->flags &= ~FCF_ASYNC_SENT;
3593         rval = qla2x00_fabric_login(vha, fcport, next_loopid);
3594         if (rval == QLA_SUCCESS) {
3595                 /* Send an ADISC to FCP2 devices.*/
3596                 opts = 0;
3597                 if (fcport->flags & FCF_FCP2_DEVICE)
3598                         opts |= BIT_1;
3599                 rval = qla2x00_get_port_database(vha, fcport, opts);
3600                 if (rval != QLA_SUCCESS) {
3601                         ha->isp_ops->fabric_logout(vha, fcport->loop_id,
3602                             fcport->d_id.b.domain, fcport->d_id.b.area,
3603                             fcport->d_id.b.al_pa);
3604                         qla2x00_mark_device_lost(vha, fcport, 1, 0);
3605                 } else {
3606                         qla2x00_update_fcport(vha, fcport);
3607                 }
3608         }
3609
3610         return (rval);
3611 }
3612
3613 /*
3614  * qla2x00_fabric_login
3615  *      Issue fabric login command.
3616  *
3617  * Input:
3618  *      ha = adapter block pointer.
3619  *      device = pointer to FC device type structure.
3620  *
3621  * Returns:
3622  *      0 - Login successfully
3623  *      1 - Login failed
3624  *      2 - Initiator device
3625  *      3 - Fatal error
3626  */
3627 int
3628 qla2x00_fabric_login(scsi_qla_host_t *vha, fc_port_t *fcport,
3629     uint16_t *next_loopid)
3630 {
3631         int     rval;
3632         int     retry;
3633         uint16_t tmp_loopid;
3634         uint16_t mb[MAILBOX_REGISTER_COUNT];
3635         struct qla_hw_data *ha = vha->hw;
3636
3637         retry = 0;
3638         tmp_loopid = 0;
3639
3640         for (;;) {
3641                 DEBUG(printk("scsi(%ld): Trying Fabric Login w/loop id 0x%04x "
3642                     "for port %02x%02x%02x.\n",
3643                     vha->host_no, fcport->loop_id, fcport->d_id.b.domain,
3644                     fcport->d_id.b.area, fcport->d_id.b.al_pa));
3645
3646                 /* Login fcport on switch. */
3647                 ha->isp_ops->fabric_login(vha, fcport->loop_id,
3648                     fcport->d_id.b.domain, fcport->d_id.b.area,
3649                     fcport->d_id.b.al_pa, mb, BIT_0);
3650                 if (mb[0] == MBS_PORT_ID_USED) {
3651                         /*
3652                          * Device has another loop ID.  The firmware team
3653                          * recommends the driver perform an implicit login with
3654                          * the specified ID again. The ID we just used is save
3655                          * here so we return with an ID that can be tried by
3656                          * the next login.
3657                          */
3658                         retry++;
3659                         tmp_loopid = fcport->loop_id;
3660                         fcport->loop_id = mb[1];
3661
3662                         DEBUG(printk("Fabric Login: port in use - next "
3663                             "loop id=0x%04x, port Id=%02x%02x%02x.\n",
3664                             fcport->loop_id, fcport->d_id.b.domain,
3665                             fcport->d_id.b.area, fcport->d_id.b.al_pa));
3666
3667                 } else if (mb[0] == MBS_COMMAND_COMPLETE) {
3668                         /*
3669                          * Login succeeded.
3670                          */
3671                         if (retry) {
3672                                 /* A retry occurred before. */
3673                                 *next_loopid = tmp_loopid;
3674                         } else {
3675                                 /*
3676                                  * No retry occurred before. Just increment the
3677                                  * ID value for next login.
3678                                  */
3679                                 *next_loopid = (fcport->loop_id + 1);
3680                         }
3681
3682                         if (mb[1] & BIT_0) {
3683                                 fcport->port_type = FCT_INITIATOR;
3684                         } else {
3685                                 fcport->port_type = FCT_TARGET;
3686                                 if (mb[1] & BIT_1) {
3687                                         fcport->flags |= FCF_FCP2_DEVICE;
3688                                 }
3689                         }
3690
3691                         if (mb[10] & BIT_0)
3692                                 fcport->supported_classes |= FC_COS_CLASS2;
3693                         if (mb[10] & BIT_1)
3694                                 fcport->supported_classes |= FC_COS_CLASS3;
3695
3696                         rval = QLA_SUCCESS;
3697                         break;
3698                 } else if (mb[0] == MBS_LOOP_ID_USED) {
3699                         /*
3700                          * Loop ID already used, try next loop ID.
3701                          */
3702                         fcport->loop_id++;
3703                         rval = qla2x00_find_new_loop_id(vha, fcport);
3704                         if (rval != QLA_SUCCESS) {
3705                                 /* Ran out of loop IDs to use */
3706                                 break;
3707                         }
3708                 } else if (mb[0] == MBS_COMMAND_ERROR) {
3709                         /*
3710                          * Firmware possibly timed out during login. If NO
3711                          * retries are left to do then the device is declared
3712                          * dead.
3713                          */
3714                         *next_loopid = fcport->loop_id;
3715                         ha->isp_ops->fabric_logout(vha, fcport->loop_id,
3716                             fcport->d_id.b.domain, fcport->d_id.b.area,
3717                             fcport->d_id.b.al_pa);
3718                         qla2x00_mark_device_lost(vha, fcport, 1, 0);
3719
3720                         rval = 1;
3721                         break;
3722                 } else {
3723                         /*
3724                          * unrecoverable / not handled error
3725                          */
3726                         DEBUG2(printk("%s(%ld): failed=%x port_id=%02x%02x%02x "
3727                             "loop_id=%x jiffies=%lx.\n",
3728                             __func__, vha->host_no, mb[0],
3729                             fcport->d_id.b.domain, fcport->d_id.b.area,
3730                             fcport->d_id.b.al_pa, fcport->loop_id, jiffies));
3731
3732                         *next_loopid = fcport->loop_id;
3733                         ha->isp_ops->fabric_logout(vha, fcport->loop_id,
3734                             fcport->d_id.b.domain, fcport->d_id.b.area,
3735                             fcport->d_id.b.al_pa);
3736                         fcport->loop_id = FC_NO_LOOP_ID;
3737                         fcport->login_retry = 0;
3738
3739                         rval = 3;
3740                         break;
3741                 }
3742         }
3743
3744         return (rval);
3745 }
3746
3747 /*
3748  * qla2x00_local_device_login
3749  *      Issue local device login command.
3750  *
3751  * Input:
3752  *      ha = adapter block pointer.
3753  *      loop_id = loop id of device to login to.
3754  *
3755  * Returns (Where's the #define!!!!):
3756  *      0 - Login successfully
3757  *      1 - Login failed
3758  *      3 - Fatal error
3759  */
3760 int
3761 qla2x00_local_device_login(scsi_qla_host_t *vha, fc_port_t *fcport)
3762 {
3763         int             rval;
3764         uint16_t        mb[MAILBOX_REGISTER_COUNT];
3765
3766         memset(mb, 0, sizeof(mb));
3767         rval = qla2x00_login_local_device(vha, fcport, mb, BIT_0);
3768         if (rval == QLA_SUCCESS) {
3769                 /* Interrogate mailbox registers for any errors */
3770                 if (mb[0] == MBS_COMMAND_ERROR)
3771                         rval = 1;
3772                 else if (mb[0] == MBS_COMMAND_PARAMETER_ERROR)
3773                         /* device not in PCB table */
3774                         rval = 3;
3775         }
3776
3777         return (rval);
3778 }
3779
3780 /*
3781  *  qla2x00_loop_resync
3782  *      Resync with fibre channel devices.
3783  *
3784  * Input:
3785  *      ha = adapter block pointer.
3786  *
3787  * Returns:
3788  *      0 = success
3789  */
3790 int
3791 qla2x00_loop_resync(scsi_qla_host_t *vha)
3792 {
3793         int rval = QLA_SUCCESS;
3794         uint32_t wait_time;
3795         struct req_que *req;
3796         struct rsp_que *rsp;
3797
3798         if (vha->hw->flags.cpu_affinity_enabled)
3799                 req = vha->hw->req_q_map[0];
3800         else
3801                 req = vha->req;
3802         rsp = req->rsp;
3803
3804         atomic_set(&vha->loop_state, LOOP_UPDATE);
3805         clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
3806         if (vha->flags.online) {
3807                 if (!(rval = qla2x00_fw_ready(vha))) {
3808                         /* Wait at most MAX_TARGET RSCNs for a stable link. */
3809                         wait_time = 256;
3810                         do {
3811                                 atomic_set(&vha->loop_state, LOOP_UPDATE);
3812
3813                                 /* Issue a marker after FW becomes ready. */
3814                                 qla2x00_marker(vha, req, rsp, 0, 0,
3815                                         MK_SYNC_ALL);
3816                                 vha->marker_needed = 0;
3817
3818                                 /* Remap devices on Loop. */
3819                                 clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
3820
3821                                 qla2x00_configure_loop(vha);
3822                                 wait_time--;
3823                         } while (!atomic_read(&vha->loop_down_timer) &&
3824                                 !(test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags))
3825                                 && wait_time && (test_bit(LOOP_RESYNC_NEEDED,
3826                                 &vha->dpc_flags)));
3827                 }
3828         }
3829
3830         if (test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags))
3831                 return (QLA_FUNCTION_FAILED);
3832
3833         if (rval)
3834                 DEBUG2_3(printk("%s(): **** FAILED ****\n", __func__));
3835
3836         return (rval);
3837 }
3838
3839 void
3840 qla2x00_update_fcports(scsi_qla_host_t *base_vha)
3841 {
3842         fc_port_t *fcport;
3843         struct scsi_qla_host *vha;
3844         struct qla_hw_data *ha = base_vha->hw;
3845         unsigned long flags;
3846
3847         spin_lock_irqsave(&ha->vport_slock, flags);
3848         /* Go with deferred removal of rport references. */
3849         list_for_each_entry(vha, &base_vha->hw->vp_list, list) {
3850                 atomic_inc(&vha->vref_count);
3851                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
3852                         if (fcport && fcport->drport &&
3853                             atomic_read(&fcport->state) != FCS_UNCONFIGURED) {
3854                                 spin_unlock_irqrestore(&ha->vport_slock, flags);
3855
3856                                 qla2x00_rport_del(fcport);
3857
3858                                 spin_lock_irqsave(&ha->vport_slock, flags);
3859                         }
3860                 }
3861                 atomic_dec(&vha->vref_count);
3862         }
3863         spin_unlock_irqrestore(&ha->vport_slock, flags);
3864 }
3865
3866 void
3867 qla2x00_abort_isp_cleanup(scsi_qla_host_t *vha)
3868 {
3869         struct qla_hw_data *ha = vha->hw;
3870         struct scsi_qla_host *vp, *base_vha = pci_get_drvdata(ha->pdev);
3871         unsigned long flags;
3872
3873         vha->flags.online = 0;
3874         ha->flags.chip_reset_done = 0;
3875         clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3876         ha->qla_stats.total_isp_aborts++;
3877
3878         qla_printk(KERN_INFO, ha,
3879             "Performing ISP error recovery - ha= %p.\n", ha);
3880
3881         /* Chip reset does not apply to 82XX */
3882         if (!IS_QLA82XX(ha))
3883                 ha->isp_ops->reset_chip(vha);
3884
3885         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
3886         if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
3887                 atomic_set(&vha->loop_state, LOOP_DOWN);
3888                 qla2x00_mark_all_devices_lost(vha, 0);
3889
3890                 spin_lock_irqsave(&ha->vport_slock, flags);
3891                 list_for_each_entry(vp, &base_vha->hw->vp_list, list) {
3892                         atomic_inc(&vp->vref_count);
3893                         spin_unlock_irqrestore(&ha->vport_slock, flags);
3894
3895                         qla2x00_mark_all_devices_lost(vp, 0);
3896
3897                         spin_lock_irqsave(&ha->vport_slock, flags);
3898                         atomic_dec(&vp->vref_count);
3899                 }
3900                 spin_unlock_irqrestore(&ha->vport_slock, flags);
3901         } else {
3902                 if (!atomic_read(&vha->loop_down_timer))
3903                         atomic_set(&vha->loop_down_timer,
3904                             LOOP_DOWN_TIME);
3905         }
3906
3907         if (!ha->flags.eeh_busy) {
3908                 /* Make sure for ISP 82XX IO DMA is complete */
3909                 if (IS_QLA82XX(ha)) {
3910                         if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0,
3911                                 WAIT_HOST) == QLA_SUCCESS) {
3912                                 DEBUG2(qla_printk(KERN_INFO, ha,
3913                                 "Done wait for pending commands\n"));
3914                         }
3915                 }
3916
3917                 /* Requeue all commands in outstanding command list. */
3918                 qla2x00_abort_all_cmds(vha, DID_RESET << 16);
3919         }
3920 }
3921
3922 /*
3923 *  qla2x00_abort_isp
3924 *      Resets ISP and aborts all outstanding commands.
3925 *
3926 * Input:
3927 *      ha           = adapter block pointer.
3928 *
3929 * Returns:
3930 *      0 = success
3931 */
3932 int
3933 qla2x00_abort_isp(scsi_qla_host_t *vha)
3934 {
3935         int rval;
3936         uint8_t        status = 0;
3937         struct qla_hw_data *ha = vha->hw;
3938         struct scsi_qla_host *vp;
3939         struct req_que *req = ha->req_q_map[0];
3940         unsigned long flags;
3941
3942         if (vha->flags.online) {
3943                 qla2x00_abort_isp_cleanup(vha);
3944
3945                 if (unlikely(pci_channel_offline(ha->pdev) &&
3946                     ha->flags.pci_channel_io_perm_failure)) {
3947                         clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
3948                         status = 0;
3949                         return status;
3950                 }
3951
3952                 ha->isp_ops->get_flash_version(vha, req->ring);
3953
3954                 ha->isp_ops->nvram_config(vha);
3955
3956                 if (!qla2x00_restart_isp(vha)) {
3957                         clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
3958
3959                         if (!atomic_read(&vha->loop_down_timer)) {
3960                                 /*
3961                                  * Issue marker command only when we are going
3962                                  * to start the I/O .
3963                                  */
3964                                 vha->marker_needed = 1;
3965                         }
3966
3967                         vha->flags.online = 1;
3968
3969                         ha->isp_ops->enable_intrs(ha);
3970
3971                         ha->isp_abort_cnt = 0;
3972                         clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
3973
3974                         if (IS_QLA81XX(ha))
3975                                 qla2x00_get_fw_version(vha,
3976                                     &ha->fw_major_version,
3977                                     &ha->fw_minor_version,
3978                                     &ha->fw_subminor_version,
3979                                     &ha->fw_attributes, &ha->fw_memory_size,
3980                                     ha->mpi_version, &ha->mpi_capabilities,
3981                                     ha->phy_version);
3982
3983                         if (ha->fce) {
3984                                 ha->flags.fce_enabled = 1;
3985                                 memset(ha->fce, 0,
3986                                     fce_calc_size(ha->fce_bufs));
3987                                 rval = qla2x00_enable_fce_trace(vha,
3988                                     ha->fce_dma, ha->fce_bufs, ha->fce_mb,
3989                                     &ha->fce_bufs);
3990                                 if (rval) {
3991                                         qla_printk(KERN_WARNING, ha,
3992                                             "Unable to reinitialize FCE "
3993                                             "(%d).\n", rval);
3994                                         ha->flags.fce_enabled = 0;
3995                                 }
3996                         }
3997
3998                         if (ha->eft) {
3999                                 memset(ha->eft, 0, EFT_SIZE);
4000                                 rval = qla2x00_enable_eft_trace(vha,
4001                                     ha->eft_dma, EFT_NUM_BUFFERS);
4002                                 if (rval) {
4003                                         qla_printk(KERN_WARNING, ha,
4004                                             "Unable to reinitialize EFT "
4005                                             "(%d).\n", rval);
4006                                 }
4007                         }
4008                 } else {        /* failed the ISP abort */
4009                         vha->flags.online = 1;
4010                         if (test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
4011                                 if (ha->isp_abort_cnt == 0) {
4012                                         qla_printk(KERN_WARNING, ha,
4013                                             "ISP error recovery failed - "
4014                                             "board disabled\n");
4015                                         /*
4016                                          * The next call disables the board
4017                                          * completely.
4018                                          */
4019                                         ha->isp_ops->reset_adapter(vha);
4020                                         vha->flags.online = 0;
4021                                         clear_bit(ISP_ABORT_RETRY,
4022                                             &vha->dpc_flags);
4023                                         status = 0;
4024                                 } else { /* schedule another ISP abort */
4025                                         ha->isp_abort_cnt--;
4026                                         DEBUG(printk("qla%ld: ISP abort - "
4027                                             "retry remaining %d\n",
4028                                             vha->host_no, ha->isp_abort_cnt));
4029                                         status = 1;
4030                                 }
4031                         } else {
4032                                 ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT;
4033                                 DEBUG(printk("qla2x00(%ld): ISP error recovery "
4034                                     "- retrying (%d) more times\n",
4035                                     vha->host_no, ha->isp_abort_cnt));
4036                                 set_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
4037                                 status = 1;
4038                         }
4039                 }
4040
4041         }
4042
4043         if (!status) {
4044                 DEBUG(printk(KERN_INFO
4045                                 "qla2x00_abort_isp(%ld): succeeded.\n",
4046                                 vha->host_no));
4047
4048                 spin_lock_irqsave(&ha->vport_slock, flags);
4049                 list_for_each_entry(vp, &ha->vp_list, list) {
4050                         if (vp->vp_idx) {
4051                                 atomic_inc(&vp->vref_count);
4052                                 spin_unlock_irqrestore(&ha->vport_slock, flags);
4053
4054                                 qla2x00_vp_abort_isp(vp);
4055
4056                                 spin_lock_irqsave(&ha->vport_slock, flags);
4057                                 atomic_dec(&vp->vref_count);
4058                         }
4059                 }
4060                 spin_unlock_irqrestore(&ha->vport_slock, flags);
4061
4062         } else {
4063                 qla_printk(KERN_INFO, ha,
4064                         "qla2x00_abort_isp: **** FAILED ****\n");
4065         }
4066
4067         return(status);
4068 }
4069
4070 /*
4071 *  qla2x00_restart_isp
4072 *      restarts the ISP after a reset
4073 *
4074 * Input:
4075 *      ha = adapter block pointer.
4076 *
4077 * Returns:
4078 *      0 = success
4079 */
4080 static int
4081 qla2x00_restart_isp(scsi_qla_host_t *vha)
4082 {
4083         int status = 0;
4084         uint32_t wait_time;
4085         struct qla_hw_data *ha = vha->hw;
4086         struct req_que *req = ha->req_q_map[0];
4087         struct rsp_que *rsp = ha->rsp_q_map[0];
4088
4089         /* If firmware needs to be loaded */
4090         if (qla2x00_isp_firmware(vha)) {
4091                 vha->flags.online = 0;
4092                 status = ha->isp_ops->chip_diag(vha);
4093                 if (!status)
4094                         status = qla2x00_setup_chip(vha);
4095         }
4096
4097         if (!status && !(status = qla2x00_init_rings(vha))) {
4098                 clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
4099                 ha->flags.chip_reset_done = 1;
4100                 /* Initialize the queues in use */
4101                 qla25xx_init_queues(ha);
4102
4103                 status = qla2x00_fw_ready(vha);
4104                 if (!status) {
4105                         DEBUG(printk("%s(): Start configure loop, "
4106                             "status = %d\n", __func__, status));
4107
4108                         /* Issue a marker after FW becomes ready. */
4109                         qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL);
4110
4111                         vha->flags.online = 1;
4112                         /* Wait at most MAX_TARGET RSCNs for a stable link. */
4113                         wait_time = 256;
4114                         do {
4115                                 clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
4116                                 qla2x00_configure_loop(vha);
4117                                 wait_time--;
4118                         } while (!atomic_read(&vha->loop_down_timer) &&
4119                                 !(test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags))
4120                                 && wait_time && (test_bit(LOOP_RESYNC_NEEDED,
4121                                 &vha->dpc_flags)));
4122                 }
4123
4124                 /* if no cable then assume it's good */
4125                 if ((vha->device_flags & DFLG_NO_CABLE))
4126                         status = 0;
4127
4128                 DEBUG(printk("%s(): Configure loop done, status = 0x%x\n",
4129                                 __func__,
4130                                 status));
4131         }
4132         return (status);
4133 }
4134
4135 static int
4136 qla25xx_init_queues(struct qla_hw_data *ha)
4137 {
4138         struct rsp_que *rsp = NULL;
4139         struct req_que *req = NULL;
4140         struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
4141         int ret = -1;
4142         int i;
4143
4144         for (i = 1; i < ha->max_rsp_queues; i++) {
4145                 rsp = ha->rsp_q_map[i];
4146                 if (rsp) {
4147                         rsp->options &= ~BIT_0;
4148                         ret = qla25xx_init_rsp_que(base_vha, rsp);
4149                         if (ret != QLA_SUCCESS)
4150                                 DEBUG2_17(printk(KERN_WARNING
4151                                         "%s Rsp que:%d init failed\n", __func__,
4152                                                 rsp->id));
4153                         else
4154                                 DEBUG2_17(printk(KERN_INFO
4155                                         "%s Rsp que:%d inited\n", __func__,
4156                                                 rsp->id));
4157                 }
4158         }
4159         for (i = 1; i < ha->max_req_queues; i++) {
4160                 req = ha->req_q_map[i];
4161                 if (req) {
4162                 /* Clear outstanding commands array. */
4163                         req->options &= ~BIT_0;
4164                         ret = qla25xx_init_req_que(base_vha, req);
4165                         if (ret != QLA_SUCCESS)
4166                                 DEBUG2_17(printk(KERN_WARNING
4167                                         "%s Req que:%d init failed\n", __func__,
4168                                                 req->id));
4169                         else
4170                                 DEBUG2_17(printk(KERN_WARNING
4171                                         "%s Req que:%d inited\n", __func__,
4172                                                 req->id));
4173                 }
4174         }
4175         return ret;
4176 }
4177
4178 /*
4179 * qla2x00_reset_adapter
4180 *      Reset adapter.
4181 *
4182 * Input:
4183 *      ha = adapter block pointer.
4184 */
4185 void
4186 qla2x00_reset_adapter(scsi_qla_host_t *vha)
4187 {
4188         unsigned long flags = 0;
4189         struct qla_hw_data *ha = vha->hw;
4190         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
4191
4192         vha->flags.online = 0;
4193         ha->isp_ops->disable_intrs(ha);
4194
4195         spin_lock_irqsave(&ha->hardware_lock, flags);
4196         WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
4197         RD_REG_WORD(&reg->hccr);                        /* PCI Posting. */
4198         WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
4199         RD_REG_WORD(&reg->hccr);                        /* PCI Posting. */
4200         spin_unlock_irqrestore(&ha->hardware_lock, flags);
4201 }
4202
4203 void
4204 qla24xx_reset_adapter(scsi_qla_host_t *vha)
4205 {
4206         unsigned long flags = 0;
4207         struct qla_hw_data *ha = vha->hw;
4208         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
4209
4210         if (IS_QLA82XX(ha))
4211                 return;
4212
4213         vha->flags.online = 0;
4214         ha->isp_ops->disable_intrs(ha);
4215
4216         spin_lock_irqsave(&ha->hardware_lock, flags);
4217         WRT_REG_DWORD(&reg->hccr, HCCRX_SET_RISC_RESET);
4218         RD_REG_DWORD(&reg->hccr);
4219         WRT_REG_DWORD(&reg->hccr, HCCRX_REL_RISC_PAUSE);
4220         RD_REG_DWORD(&reg->hccr);
4221         spin_unlock_irqrestore(&ha->hardware_lock, flags);
4222
4223         if (IS_NOPOLLING_TYPE(ha))
4224                 ha->isp_ops->enable_intrs(ha);
4225 }
4226
4227 /* On sparc systems, obtain port and node WWN from firmware
4228  * properties.
4229  */
4230 static void qla24xx_nvram_wwn_from_ofw(scsi_qla_host_t *vha,
4231         struct nvram_24xx *nv)
4232 {
4233 #ifdef CONFIG_SPARC
4234         struct qla_hw_data *ha = vha->hw;
4235         struct pci_dev *pdev = ha->pdev;
4236         struct device_node *dp = pci_device_to_OF_node(pdev);
4237         const u8 *val;
4238         int len;
4239
4240         val = of_get_property(dp, "port-wwn", &len);
4241         if (val && len >= WWN_SIZE)
4242                 memcpy(nv->port_name, val, WWN_SIZE);
4243
4244         val = of_get_property(dp, "node-wwn", &len);
4245         if (val && len >= WWN_SIZE)
4246                 memcpy(nv->node_name, val, WWN_SIZE);
4247 #endif
4248 }
4249
4250 int
4251 qla24xx_nvram_config(scsi_qla_host_t *vha)
4252 {
4253         int   rval;
4254         struct init_cb_24xx *icb;
4255         struct nvram_24xx *nv;
4256         uint32_t *dptr;
4257         uint8_t  *dptr1, *dptr2;
4258         uint32_t chksum;
4259         uint16_t cnt;
4260         struct qla_hw_data *ha = vha->hw;
4261
4262         rval = QLA_SUCCESS;
4263         icb = (struct init_cb_24xx *)ha->init_cb;
4264         nv = ha->nvram;
4265
4266         /* Determine NVRAM starting address. */
4267         if (ha->flags.port0) {
4268                 ha->nvram_base = FA_NVRAM_FUNC0_ADDR;
4269                 ha->vpd_base = FA_NVRAM_VPD0_ADDR;
4270         } else {
4271                 ha->nvram_base = FA_NVRAM_FUNC1_ADDR;
4272                 ha->vpd_base = FA_NVRAM_VPD1_ADDR;
4273         }
4274         ha->nvram_size = sizeof(struct nvram_24xx);
4275         ha->vpd_size = FA_NVRAM_VPD_SIZE;
4276         if (IS_QLA82XX(ha))
4277                 ha->vpd_size = FA_VPD_SIZE_82XX;
4278
4279         /* Get VPD data into cache */
4280         ha->vpd = ha->nvram + VPD_OFFSET;
4281         ha->isp_ops->read_nvram(vha, (uint8_t *)ha->vpd,
4282             ha->nvram_base - FA_NVRAM_FUNC0_ADDR, FA_NVRAM_VPD_SIZE * 4);
4283
4284         /* Get NVRAM data into cache and calculate checksum. */
4285         dptr = (uint32_t *)nv;
4286         ha->isp_ops->read_nvram(vha, (uint8_t *)dptr, ha->nvram_base,
4287             ha->nvram_size);
4288         for (cnt = 0, chksum = 0; cnt < ha->nvram_size >> 2; cnt++)
4289                 chksum += le32_to_cpu(*dptr++);
4290
4291         DEBUG5(printk("scsi(%ld): Contents of NVRAM\n", vha->host_no));
4292         DEBUG5(qla2x00_dump_buffer((uint8_t *)nv, ha->nvram_size));
4293
4294         /* Bad NVRAM data, set defaults parameters. */
4295         if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' || nv->id[2] != 'P'
4296             || nv->id[3] != ' ' ||
4297             nv->nvram_version < __constant_cpu_to_le16(ICB_VERSION)) {
4298                 /* Reset NVRAM data. */
4299                 qla_printk(KERN_WARNING, ha, "Inconsistent NVRAM detected: "
4300                     "checksum=0x%x id=%c version=0x%x.\n", chksum, nv->id[0],
4301                     le16_to_cpu(nv->nvram_version));
4302                 qla_printk(KERN_WARNING, ha, "Falling back to functioning (yet "
4303                     "invalid -- WWPN) defaults.\n");
4304
4305                 /*
4306                  * Set default initialization control block.
4307                  */
4308                 memset(nv, 0, ha->nvram_size);
4309                 nv->nvram_version = __constant_cpu_to_le16(ICB_VERSION);
4310                 nv->version = __constant_cpu_to_le16(ICB_VERSION);
4311                 nv->frame_payload_size = __constant_cpu_to_le16(2048);
4312                 nv->execution_throttle = __constant_cpu_to_le16(0xFFFF);
4313                 nv->exchange_count = __constant_cpu_to_le16(0);
4314                 nv->hard_address = __constant_cpu_to_le16(124);
4315                 nv->port_name[0] = 0x21;
4316                 nv->port_name[1] = 0x00 + ha->port_no;
4317                 nv->port_name[2] = 0x00;
4318                 nv->port_name[3] = 0xe0;
4319                 nv->port_name[4] = 0x8b;
4320                 nv->port_name[5] = 0x1c;
4321                 nv->port_name[6] = 0x55;
4322                 nv->port_name[7] = 0x86;
4323                 nv->node_name[0] = 0x20;
4324                 nv->node_name[1] = 0x00;
4325                 nv->node_name[2] = 0x00;
4326                 nv->node_name[3] = 0xe0;
4327                 nv->node_name[4] = 0x8b;
4328                 nv->node_name[5] = 0x1c;
4329                 nv->node_name[6] = 0x55;
4330                 nv->node_name[7] = 0x86;
4331                 qla24xx_nvram_wwn_from_ofw(vha, nv);
4332                 nv->login_retry_count = __constant_cpu_to_le16(8);
4333                 nv->interrupt_delay_timer = __constant_cpu_to_le16(0);
4334                 nv->login_timeout = __constant_cpu_to_le16(0);
4335                 nv->firmware_options_1 =
4336                     __constant_cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1);
4337                 nv->firmware_options_2 = __constant_cpu_to_le32(2 << 4);
4338                 nv->firmware_options_2 |= __constant_cpu_to_le32(BIT_12);
4339                 nv->firmware_options_3 = __constant_cpu_to_le32(2 << 13);
4340                 nv->host_p = __constant_cpu_to_le32(BIT_11|BIT_10);
4341                 nv->efi_parameters = __constant_cpu_to_le32(0);
4342                 nv->reset_delay = 5;
4343                 nv->max_luns_per_target = __constant_cpu_to_le16(128);
4344                 nv->port_down_retry_count = __constant_cpu_to_le16(30);
4345                 nv->link_down_timeout = __constant_cpu_to_le16(30);
4346
4347                 rval = 1;
4348         }
4349
4350         /* Reset Initialization control block */
4351         memset(icb, 0, ha->init_cb_size);
4352
4353         /* Copy 1st segment. */
4354         dptr1 = (uint8_t *)icb;
4355         dptr2 = (uint8_t *)&nv->version;
4356         cnt = (uint8_t *)&icb->response_q_inpointer - (uint8_t *)&icb->version;
4357         while (cnt--)
4358                 *dptr1++ = *dptr2++;
4359
4360         icb->login_retry_count = nv->login_retry_count;
4361         icb->link_down_on_nos = nv->link_down_on_nos;
4362
4363         /* Copy 2nd segment. */
4364         dptr1 = (uint8_t *)&icb->interrupt_delay_timer;
4365         dptr2 = (uint8_t *)&nv->interrupt_delay_timer;
4366         cnt = (uint8_t *)&icb->reserved_3 -
4367             (uint8_t *)&icb->interrupt_delay_timer;
4368         while (cnt--)
4369                 *dptr1++ = *dptr2++;
4370
4371         /*
4372          * Setup driver NVRAM options.
4373          */
4374         qla2x00_set_model_info(vha, nv->model_name, sizeof(nv->model_name),
4375             "QLA2462");
4376
4377         /* Use alternate WWN? */
4378         if (nv->host_p & __constant_cpu_to_le32(BIT_15)) {
4379                 memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
4380                 memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
4381         }
4382
4383         /* Prepare nodename */
4384         if ((icb->firmware_options_1 & __constant_cpu_to_le32(BIT_14)) == 0) {
4385                 /*
4386                  * Firmware will apply the following mask if the nodename was
4387                  * not provided.
4388                  */
4389                 memcpy(icb->node_name, icb->port_name, WWN_SIZE);
4390                 icb->node_name[0] &= 0xF0;
4391         }
4392
4393         /* Set host adapter parameters. */
4394         ha->flags.disable_risc_code_load = 0;
4395         ha->flags.enable_lip_reset = 0;
4396         ha->flags.enable_lip_full_login =
4397             le32_to_cpu(nv->host_p) & BIT_10 ? 1: 0;
4398         ha->flags.enable_target_reset =
4399             le32_to_cpu(nv->host_p) & BIT_11 ? 1: 0;
4400         ha->flags.enable_led_scheme = 0;
4401         ha->flags.disable_serdes = le32_to_cpu(nv->host_p) & BIT_5 ? 1: 0;
4402
4403         ha->operating_mode = (le32_to_cpu(icb->firmware_options_2) &
4404             (BIT_6 | BIT_5 | BIT_4)) >> 4;
4405
4406         memcpy(ha->fw_seriallink_options24, nv->seriallink_options,
4407             sizeof(ha->fw_seriallink_options24));
4408
4409         /* save HBA serial number */
4410         ha->serial0 = icb->port_name[5];
4411         ha->serial1 = icb->port_name[6];
4412         ha->serial2 = icb->port_name[7];
4413         memcpy(vha->node_name, icb->node_name, WWN_SIZE);
4414         memcpy(vha->port_name, icb->port_name, WWN_SIZE);
4415
4416         icb->execution_throttle = __constant_cpu_to_le16(0xFFFF);
4417
4418         ha->retry_count = le16_to_cpu(nv->login_retry_count);
4419
4420         /* Set minimum login_timeout to 4 seconds. */
4421         if (le16_to_cpu(nv->login_timeout) < ql2xlogintimeout)
4422                 nv->login_timeout = cpu_to_le16(ql2xlogintimeout);
4423         if (le16_to_cpu(nv->login_timeout) < 4)
4424                 nv->login_timeout = __constant_cpu_to_le16(4);
4425         ha->login_timeout = le16_to_cpu(nv->login_timeout);
4426         icb->login_timeout = nv->login_timeout;
4427
4428         /* Set minimum RATOV to 100 tenths of a second. */
4429         ha->r_a_tov = 100;
4430
4431         ha->loop_reset_delay = nv->reset_delay;
4432
4433         /* Link Down Timeout = 0:
4434          *
4435          *      When Port Down timer expires we will start returning
4436          *      I/O's to OS with "DID_NO_CONNECT".
4437          *
4438          * Link Down Timeout != 0:
4439          *
4440          *       The driver waits for the link to come up after link down
4441          *       before returning I/Os to OS with "DID_NO_CONNECT".
4442          */
4443         if (le16_to_cpu(nv->link_down_timeout) == 0) {
4444                 ha->loop_down_abort_time =
4445                     (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
4446         } else {
4447                 ha->link_down_timeout = le16_to_cpu(nv->link_down_timeout);
4448                 ha->loop_down_abort_time =
4449                     (LOOP_DOWN_TIME - ha->link_down_timeout);
4450         }
4451
4452         /* Need enough time to try and get the port back. */
4453         ha->port_down_retry_count = le16_to_cpu(nv->port_down_retry_count);
4454         if (qlport_down_retry)
4455                 ha->port_down_retry_count = qlport_down_retry;
4456
4457         /* Set login_retry_count */
4458         ha->login_retry_count  = le16_to_cpu(nv->login_retry_count);
4459         if (ha->port_down_retry_count ==
4460             le16_to_cpu(nv->port_down_retry_count) &&
4461             ha->port_down_retry_count > 3)
4462                 ha->login_retry_count = ha->port_down_retry_count;
4463         else if (ha->port_down_retry_count > (int)ha->login_retry_count)
4464                 ha->login_retry_count = ha->port_down_retry_count;
4465         if (ql2xloginretrycount)
4466                 ha->login_retry_count = ql2xloginretrycount;
4467
4468         /* Enable ZIO. */
4469         if (!vha->flags.init_done) {
4470                 ha->zio_mode = le32_to_cpu(icb->firmware_options_2) &
4471                     (BIT_3 | BIT_2 | BIT_1 | BIT_0);
4472                 ha->zio_timer = le16_to_cpu(icb->interrupt_delay_timer) ?
4473                     le16_to_cpu(icb->interrupt_delay_timer): 2;
4474         }
4475         icb->firmware_options_2 &= __constant_cpu_to_le32(
4476             ~(BIT_3 | BIT_2 | BIT_1 | BIT_0));
4477         vha->flags.process_response_queue = 0;
4478         if (ha->zio_mode != QLA_ZIO_DISABLED) {
4479                 ha->zio_mode = QLA_ZIO_MODE_6;
4480
4481                 DEBUG2(printk("scsi(%ld): ZIO mode %d enabled; timer delay "
4482                     "(%d us).\n", vha->host_no, ha->zio_mode,
4483                     ha->zio_timer * 100));
4484                 qla_printk(KERN_INFO, ha,
4485                     "ZIO mode %d enabled; timer delay (%d us).\n",
4486                     ha->zio_mode, ha->zio_timer * 100);
4487
4488                 icb->firmware_options_2 |= cpu_to_le32(
4489                     (uint32_t)ha->zio_mode);
4490                 icb->interrupt_delay_timer = cpu_to_le16(ha->zio_timer);
4491                 vha->flags.process_response_queue = 1;
4492         }
4493
4494         if (rval) {
4495                 DEBUG2_3(printk(KERN_WARNING
4496                     "scsi(%ld): NVRAM configuration failed!\n", vha->host_no));
4497         }
4498         return (rval);
4499 }
4500
4501 static int
4502 qla24xx_load_risc_flash(scsi_qla_host_t *vha, uint32_t *srisc_addr,
4503     uint32_t faddr)
4504 {
4505         int     rval = QLA_SUCCESS;
4506         int     segments, fragment;
4507         uint32_t *dcode, dlen;
4508         uint32_t risc_addr;
4509         uint32_t risc_size;
4510         uint32_t i;
4511         struct qla_hw_data *ha = vha->hw;
4512         struct req_que *req = ha->req_q_map[0];
4513
4514         qla_printk(KERN_INFO, ha,
4515             "FW: Loading from flash (%x)...\n", faddr);
4516
4517         rval = QLA_SUCCESS;
4518
4519         segments = FA_RISC_CODE_SEGMENTS;
4520         dcode = (uint32_t *)req->ring;
4521         *srisc_addr = 0;
4522
4523         /* Validate firmware image by checking version. */
4524         qla24xx_read_flash_data(vha, dcode, faddr + 4, 4);
4525         for (i = 0; i < 4; i++)
4526                 dcode[i] = be32_to_cpu(dcode[i]);
4527         if ((dcode[0] == 0xffffffff && dcode[1] == 0xffffffff &&
4528             dcode[2] == 0xffffffff && dcode[3] == 0xffffffff) ||
4529             (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
4530                 dcode[3] == 0)) {
4531                 qla_printk(KERN_WARNING, ha,
4532                     "Unable to verify integrity of flash firmware image!\n");
4533                 qla_printk(KERN_WARNING, ha,
4534                     "Firmware data: %08x %08x %08x %08x!\n", dcode[0],
4535                     dcode[1], dcode[2], dcode[3]);
4536
4537                 return QLA_FUNCTION_FAILED;
4538         }
4539
4540         while (segments && rval == QLA_SUCCESS) {
4541                 /* Read segment's load information. */
4542                 qla24xx_read_flash_data(vha, dcode, faddr, 4);
4543
4544                 risc_addr = be32_to_cpu(dcode[2]);
4545                 *srisc_addr = *srisc_addr == 0 ? risc_addr : *srisc_addr;
4546                 risc_size = be32_to_cpu(dcode[3]);
4547
4548                 fragment = 0;
4549                 while (risc_size > 0 && rval == QLA_SUCCESS) {
4550                         dlen = (uint32_t)(ha->fw_transfer_size >> 2);
4551                         if (dlen > risc_size)
4552                                 dlen = risc_size;
4553
4554                         DEBUG7(printk("scsi(%ld): Loading risc segment@ risc "
4555                             "addr %x, number of dwords 0x%x, offset 0x%x.\n",
4556                             vha->host_no, risc_addr, dlen, faddr));
4557
4558                         qla24xx_read_flash_data(vha, dcode, faddr, dlen);
4559                         for (i = 0; i < dlen; i++)
4560                                 dcode[i] = swab32(dcode[i]);
4561
4562                         rval = qla2x00_load_ram(vha, req->dma, risc_addr,
4563                             dlen);
4564                         if (rval) {
4565                                 DEBUG(printk("scsi(%ld):[ERROR] Failed to load "
4566                                     "segment %d of firmware\n", vha->host_no,
4567                                     fragment));
4568                                 qla_printk(KERN_WARNING, ha,
4569                                     "[ERROR] Failed to load segment %d of "
4570                                     "firmware\n", fragment);
4571                                 break;
4572                         }
4573
4574                         faddr += dlen;
4575                         risc_addr += dlen;
4576                         risc_size -= dlen;
4577                         fragment++;
4578                 }
4579
4580                 /* Next segment. */
4581                 segments--;
4582         }
4583
4584         return rval;
4585 }
4586
4587 #define QLA_FW_URL "ftp://ftp.qlogic.com/outgoing/linux/firmware/"
4588
4589 int
4590 qla2x00_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
4591 {
4592         int     rval;
4593         int     i, fragment;
4594         uint16_t *wcode, *fwcode;
4595         uint32_t risc_addr, risc_size, fwclen, wlen, *seg;
4596         struct fw_blob *blob;
4597         struct qla_hw_data *ha = vha->hw;
4598         struct req_que *req = ha->req_q_map[0];
4599
4600         /* Load firmware blob. */
4601         blob = qla2x00_request_firmware(vha);
4602         if (!blob) {
4603                 qla_printk(KERN_ERR, ha, "Firmware image unavailable.\n");
4604                 qla_printk(KERN_ERR, ha, "Firmware images can be retrieved "
4605                     "from: " QLA_FW_URL ".\n");
4606                 return QLA_FUNCTION_FAILED;
4607         }
4608
4609         rval = QLA_SUCCESS;
4610
4611         wcode = (uint16_t *)req->ring;
4612         *srisc_addr = 0;
4613         fwcode = (uint16_t *)blob->fw->data;
4614         fwclen = 0;
4615
4616         /* Validate firmware image by checking version. */
4617         if (blob->fw->size < 8 * sizeof(uint16_t)) {
4618                 qla_printk(KERN_WARNING, ha,
4619                     "Unable to verify integrity of firmware image (%Zd)!\n",
4620                     blob->fw->size);
4621                 goto fail_fw_integrity;
4622         }
4623         for (i = 0; i < 4; i++)
4624                 wcode[i] = be16_to_cpu(fwcode[i + 4]);
4625         if ((wcode[0] == 0xffff && wcode[1] == 0xffff && wcode[2] == 0xffff &&
4626             wcode[3] == 0xffff) || (wcode[0] == 0 && wcode[1] == 0 &&
4627                 wcode[2] == 0 && wcode[3] == 0)) {
4628                 qla_printk(KERN_WARNING, ha,
4629                     "Unable to verify integrity of firmware image!\n");
4630                 qla_printk(KERN_WARNING, ha,
4631                     "Firmware data: %04x %04x %04x %04x!\n", wcode[0],
4632                     wcode[1], wcode[2], wcode[3]);
4633                 goto fail_fw_integrity;
4634         }
4635
4636         seg = blob->segs;
4637         while (*seg && rval == QLA_SUCCESS) {
4638                 risc_addr = *seg;
4639                 *srisc_addr = *srisc_addr == 0 ? *seg : *srisc_addr;
4640                 risc_size = be16_to_cpu(fwcode[3]);
4641
4642                 /* Validate firmware image size. */
4643                 fwclen += risc_size * sizeof(uint16_t);
4644                 if (blob->fw->size < fwclen) {
4645                         qla_printk(KERN_WARNING, ha,
4646                             "Unable to verify integrity of firmware image "
4647                             "(%Zd)!\n", blob->fw->size);
4648                         goto fail_fw_integrity;
4649                 }
4650
4651                 fragment = 0;
4652                 while (risc_size > 0 && rval == QLA_SUCCESS) {
4653                         wlen = (uint16_t)(ha->fw_transfer_size >> 1);
4654                         if (wlen > risc_size)
4655                                 wlen = risc_size;
4656
4657                         DEBUG7(printk("scsi(%ld): Loading risc segment@ risc "
4658                             "addr %x, number of words 0x%x.\n", vha->host_no,
4659                             risc_addr, wlen));
4660
4661                         for (i = 0; i < wlen; i++)
4662                                 wcode[i] = swab16(fwcode[i]);
4663
4664                         rval = qla2x00_load_ram(vha, req->dma, risc_addr,
4665                             wlen);
4666                         if (rval) {
4667                                 DEBUG(printk("scsi(%ld):[ERROR] Failed to load "
4668                                     "segment %d of firmware\n", vha->host_no,
4669                                     fragment));
4670                                 qla_printk(KERN_WARNING, ha,
4671                                     "[ERROR] Failed to load segment %d of "
4672                                     "firmware\n", fragment);
4673                                 break;
4674                         }
4675
4676                         fwcode += wlen;
4677                         risc_addr += wlen;
4678                         risc_size -= wlen;
4679                         fragment++;
4680                 }
4681
4682                 /* Next segment. */
4683                 seg++;
4684         }
4685         return rval;
4686
4687 fail_fw_integrity:
4688         return QLA_FUNCTION_FAILED;
4689 }
4690
4691 static int
4692 qla24xx_load_risc_blob(scsi_qla_host_t *vha, uint32_t *srisc_addr)
4693 {
4694         int     rval;
4695         int     segments, fragment;
4696         uint32_t *dcode, dlen;
4697         uint32_t risc_addr;
4698         uint32_t risc_size;
4699         uint32_t i;
4700         struct fw_blob *blob;
4701         uint32_t *fwcode, fwclen;
4702         struct qla_hw_data *ha = vha->hw;
4703         struct req_que *req = ha->req_q_map[0];
4704
4705         /* Load firmware blob. */
4706         blob = qla2x00_request_firmware(vha);
4707         if (!blob) {
4708                 qla_printk(KERN_ERR, ha, "Firmware image unavailable.\n");
4709                 qla_printk(KERN_ERR, ha, "Firmware images can be retrieved "
4710                     "from: " QLA_FW_URL ".\n");
4711
4712                 return QLA_FUNCTION_FAILED;
4713         }
4714
4715         qla_printk(KERN_INFO, ha,
4716             "FW: Loading via request-firmware...\n");
4717
4718         rval = QLA_SUCCESS;
4719
4720         segments = FA_RISC_CODE_SEGMENTS;
4721         dcode = (uint32_t *)req->ring;
4722         *srisc_addr = 0;
4723         fwcode = (uint32_t *)blob->fw->data;
4724         fwclen = 0;
4725
4726         /* Validate firmware image by checking version. */
4727         if (blob->fw->size < 8 * sizeof(uint32_t)) {
4728                 qla_printk(KERN_WARNING, ha,
4729                     "Unable to verify integrity of firmware image (%Zd)!\n",
4730                     blob->fw->size);
4731                 goto fail_fw_integrity;
4732         }
4733         for (i = 0; i < 4; i++)
4734                 dcode[i] = be32_to_cpu(fwcode[i + 4]);
4735         if ((dcode[0] == 0xffffffff && dcode[1] == 0xffffffff &&
4736             dcode[2] == 0xffffffff && dcode[3] == 0xffffffff) ||
4737             (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
4738                 dcode[3] == 0)) {
4739                 qla_printk(KERN_WARNING, ha,
4740                     "Unable to verify integrity of firmware image!\n");
4741                 qla_printk(KERN_WARNING, ha,
4742                     "Firmware data: %08x %08x %08x %08x!\n", dcode[0],
4743                     dcode[1], dcode[2], dcode[3]);
4744                 goto fail_fw_integrity;
4745         }
4746
4747         while (segments && rval == QLA_SUCCESS) {
4748                 risc_addr = be32_to_cpu(fwcode[2]);
4749                 *srisc_addr = *srisc_addr == 0 ? risc_addr : *srisc_addr;
4750                 risc_size = be32_to_cpu(fwcode[3]);
4751
4752                 /* Validate firmware image size. */
4753                 fwclen += risc_size * sizeof(uint32_t);
4754                 if (blob->fw->size < fwclen) {
4755                         qla_printk(KERN_WARNING, ha,
4756                             "Unable to verify integrity of firmware image "
4757                             "(%Zd)!\n", blob->fw->size);
4758
4759                         goto fail_fw_integrity;
4760                 }
4761
4762                 fragment = 0;
4763                 while (risc_size > 0 && rval == QLA_SUCCESS) {
4764                         dlen = (uint32_t)(ha->fw_transfer_size >> 2);
4765                         if (dlen > risc_size)
4766                                 dlen = risc_size;
4767
4768                         DEBUG7(printk("scsi(%ld): Loading risc segment@ risc "
4769                             "addr %x, number of dwords 0x%x.\n", vha->host_no,
4770                             risc_addr, dlen));
4771
4772                         for (i = 0; i < dlen; i++)
4773                                 dcode[i] = swab32(fwcode[i]);
4774
4775                         rval = qla2x00_load_ram(vha, req->dma, risc_addr,
4776                             dlen);
4777                         if (rval) {
4778                                 DEBUG(printk("scsi(%ld):[ERROR] Failed to load "
4779                                     "segment %d of firmware\n", vha->host_no,
4780                                     fragment));
4781                                 qla_printk(KERN_WARNING, ha,
4782                                     "[ERROR] Failed to load segment %d of "
4783                                     "firmware\n", fragment);
4784                                 break;
4785                         }
4786
4787                         fwcode += dlen;
4788                         risc_addr += dlen;
4789                         risc_size -= dlen;
4790                         fragment++;
4791                 }
4792
4793                 /* Next segment. */
4794                 segments--;
4795         }
4796         return rval;
4797
4798 fail_fw_integrity:
4799         return QLA_FUNCTION_FAILED;
4800 }
4801
4802 int
4803 qla24xx_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
4804 {
4805         int rval;
4806
4807         if (ql2xfwloadbin == 1)
4808                 return qla81xx_load_risc(vha, srisc_addr);
4809
4810         /*
4811          * FW Load priority:
4812          * 1) Firmware via request-firmware interface (.bin file).
4813          * 2) Firmware residing in flash.
4814          */
4815         rval = qla24xx_load_risc_blob(vha, srisc_addr);
4816         if (rval == QLA_SUCCESS)
4817                 return rval;
4818
4819         return qla24xx_load_risc_flash(vha, srisc_addr,
4820             vha->hw->flt_region_fw);
4821 }
4822
4823 int
4824 qla81xx_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
4825 {
4826         int rval;
4827         struct qla_hw_data *ha = vha->hw;
4828
4829         if (ql2xfwloadbin == 2)
4830                 goto try_blob_fw;
4831
4832         /*
4833          * FW Load priority:
4834          * 1) Firmware residing in flash.
4835          * 2) Firmware via request-firmware interface (.bin file).
4836          * 3) Golden-Firmware residing in flash -- limited operation.
4837          */
4838         rval = qla24xx_load_risc_flash(vha, srisc_addr, ha->flt_region_fw);
4839         if (rval == QLA_SUCCESS)
4840                 return rval;
4841
4842 try_blob_fw:
4843         rval = qla24xx_load_risc_blob(vha, srisc_addr);
4844         if (rval == QLA_SUCCESS || !ha->flt_region_gold_fw)
4845                 return rval;
4846
4847         qla_printk(KERN_ERR, ha,
4848             "FW: Attempting to fallback to golden firmware...\n");
4849         rval = qla24xx_load_risc_flash(vha, srisc_addr, ha->flt_region_gold_fw);
4850         if (rval != QLA_SUCCESS)
4851                 return rval;
4852
4853         qla_printk(KERN_ERR, ha,
4854             "FW: Please update operational firmware...\n");
4855         ha->flags.running_gold_fw = 1;
4856
4857         return rval;
4858 }
4859
4860 void
4861 qla2x00_try_to_stop_firmware(scsi_qla_host_t *vha)
4862 {
4863         int ret, retries;
4864         struct qla_hw_data *ha = vha->hw;
4865
4866         if (ha->flags.pci_channel_io_perm_failure)
4867                 return;
4868         if (!IS_FWI2_CAPABLE(ha))
4869                 return;
4870         if (!ha->fw_major_version)
4871                 return;
4872
4873         ret = qla2x00_stop_firmware(vha);
4874         for (retries = 5; ret != QLA_SUCCESS && ret != QLA_FUNCTION_TIMEOUT &&
4875             ret != QLA_INVALID_COMMAND && retries ; retries--) {
4876                 ha->isp_ops->reset_chip(vha);
4877                 if (ha->isp_ops->chip_diag(vha) != QLA_SUCCESS)
4878                         continue;
4879                 if (qla2x00_setup_chip(vha) != QLA_SUCCESS)
4880                         continue;
4881                 qla_printk(KERN_INFO, ha,
4882                     "Attempting retry of stop-firmware command...\n");
4883                 ret = qla2x00_stop_firmware(vha);
4884         }
4885 }
4886
4887 int
4888 qla24xx_configure_vhba(scsi_qla_host_t *vha)
4889 {
4890         int rval = QLA_SUCCESS;
4891         uint16_t mb[MAILBOX_REGISTER_COUNT];
4892         struct qla_hw_data *ha = vha->hw;
4893         struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
4894         struct req_que *req;
4895         struct rsp_que *rsp;
4896
4897         if (!vha->vp_idx)
4898                 return -EINVAL;
4899
4900         rval = qla2x00_fw_ready(base_vha);
4901         if (ha->flags.cpu_affinity_enabled)
4902                 req = ha->req_q_map[0];
4903         else
4904                 req = vha->req;
4905         rsp = req->rsp;
4906
4907         if (rval == QLA_SUCCESS) {
4908                 clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
4909                 qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL);
4910         }
4911
4912         vha->flags.management_server_logged_in = 0;
4913
4914         /* Login to SNS first */
4915         ha->isp_ops->fabric_login(vha, NPH_SNS, 0xff, 0xff, 0xfc, mb, BIT_1);
4916         if (mb[0] != MBS_COMMAND_COMPLETE) {
4917                 DEBUG15(qla_printk(KERN_INFO, ha,
4918                     "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x "
4919                     "mb[2]=%x mb[6]=%x mb[7]=%x\n", NPH_SNS,
4920                     mb[0], mb[1], mb[2], mb[6], mb[7]));
4921                 return (QLA_FUNCTION_FAILED);
4922         }
4923
4924         atomic_set(&vha->loop_down_timer, 0);
4925         atomic_set(&vha->loop_state, LOOP_UP);
4926         set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
4927         set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
4928         rval = qla2x00_loop_resync(base_vha);
4929
4930         return rval;
4931 }
4932
4933 /* 84XX Support **************************************************************/
4934
4935 static LIST_HEAD(qla_cs84xx_list);
4936 static DEFINE_MUTEX(qla_cs84xx_mutex);
4937
4938 static struct qla_chip_state_84xx *
4939 qla84xx_get_chip(struct scsi_qla_host *vha)
4940 {
4941         struct qla_chip_state_84xx *cs84xx;
4942         struct qla_hw_data *ha = vha->hw;
4943
4944         mutex_lock(&qla_cs84xx_mutex);
4945
4946         /* Find any shared 84xx chip. */
4947         list_for_each_entry(cs84xx, &qla_cs84xx_list, list) {
4948                 if (cs84xx->bus == ha->pdev->bus) {
4949                         kref_get(&cs84xx->kref);
4950                         goto done;
4951                 }
4952         }
4953
4954         cs84xx = kzalloc(sizeof(*cs84xx), GFP_KERNEL);
4955         if (!cs84xx)
4956                 goto done;
4957
4958         kref_init(&cs84xx->kref);
4959         spin_lock_init(&cs84xx->access_lock);
4960         mutex_init(&cs84xx->fw_update_mutex);
4961         cs84xx->bus = ha->pdev->bus;
4962
4963         list_add_tail(&cs84xx->list, &qla_cs84xx_list);
4964 done:
4965         mutex_unlock(&qla_cs84xx_mutex);
4966         return cs84xx;
4967 }
4968
4969 static void
4970 __qla84xx_chip_release(struct kref *kref)
4971 {
4972         struct qla_chip_state_84xx *cs84xx =
4973             container_of(kref, struct qla_chip_state_84xx, kref);
4974
4975         mutex_lock(&qla_cs84xx_mutex);
4976         list_del(&cs84xx->list);
4977         mutex_unlock(&qla_cs84xx_mutex);
4978         kfree(cs84xx);
4979 }
4980
4981 void
4982 qla84xx_put_chip(struct scsi_qla_host *vha)
4983 {
4984         struct qla_hw_data *ha = vha->hw;
4985         if (ha->cs84xx)
4986                 kref_put(&ha->cs84xx->kref, __qla84xx_chip_release);
4987 }
4988
4989 static int
4990 qla84xx_init_chip(scsi_qla_host_t *vha)
4991 {
4992         int rval;
4993         uint16_t status[2];
4994         struct qla_hw_data *ha = vha->hw;
4995
4996         mutex_lock(&ha->cs84xx->fw_update_mutex);
4997
4998         rval = qla84xx_verify_chip(vha, status);
4999
5000         mutex_unlock(&ha->cs84xx->fw_update_mutex);
5001
5002         return rval != QLA_SUCCESS || status[0] ? QLA_FUNCTION_FAILED:
5003             QLA_SUCCESS;
5004 }
5005
5006 /* 81XX Support **************************************************************/
5007
5008 int
5009 qla81xx_nvram_config(scsi_qla_host_t *vha)
5010 {
5011         int   rval;
5012         struct init_cb_81xx *icb;
5013         struct nvram_81xx *nv;
5014         uint32_t *dptr;
5015         uint8_t  *dptr1, *dptr2;
5016         uint32_t chksum;
5017         uint16_t cnt;
5018         struct qla_hw_data *ha = vha->hw;
5019
5020         rval = QLA_SUCCESS;
5021         icb = (struct init_cb_81xx *)ha->init_cb;
5022         nv = ha->nvram;
5023
5024         /* Determine NVRAM starting address. */
5025         ha->nvram_size = sizeof(struct nvram_81xx);
5026         ha->vpd_size = FA_NVRAM_VPD_SIZE;
5027
5028         /* Get VPD data into cache */
5029         ha->vpd = ha->nvram + VPD_OFFSET;
5030         ha->isp_ops->read_optrom(vha, ha->vpd, ha->flt_region_vpd << 2,
5031             ha->vpd_size);
5032
5033         /* Get NVRAM data into cache and calculate checksum. */
5034         ha->isp_ops->read_optrom(vha, ha->nvram, ha->flt_region_nvram << 2,
5035             ha->nvram_size);
5036         dptr = (uint32_t *)nv;
5037         for (cnt = 0, chksum = 0; cnt < ha->nvram_size >> 2; cnt++)
5038                 chksum += le32_to_cpu(*dptr++);
5039
5040         DEBUG5(printk("scsi(%ld): Contents of NVRAM\n", vha->host_no));
5041         DEBUG5(qla2x00_dump_buffer((uint8_t *)nv, ha->nvram_size));
5042
5043         /* Bad NVRAM data, set defaults parameters. */
5044         if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' || nv->id[2] != 'P'
5045             || nv->id[3] != ' ' ||
5046             nv->nvram_version < __constant_cpu_to_le16(ICB_VERSION)) {
5047                 /* Reset NVRAM data. */
5048                 qla_printk(KERN_WARNING, ha, "Inconsistent NVRAM detected: "
5049                     "checksum=0x%x id=%c version=0x%x.\n", chksum, nv->id[0],
5050                     le16_to_cpu(nv->nvram_version));
5051                 qla_printk(KERN_WARNING, ha, "Falling back to functioning (yet "
5052                     "invalid -- WWPN) defaults.\n");
5053
5054                 /*
5055                  * Set default initialization control block.
5056                  */
5057                 memset(nv, 0, ha->nvram_size);
5058                 nv->nvram_version = __constant_cpu_to_le16(ICB_VERSION);
5059                 nv->version = __constant_cpu_to_le16(ICB_VERSION);
5060                 nv->frame_payload_size = __constant_cpu_to_le16(2048);
5061                 nv->execution_throttle = __constant_cpu_to_le16(0xFFFF);
5062                 nv->exchange_count = __constant_cpu_to_le16(0);
5063                 nv->port_name[0] = 0x21;
5064                 nv->port_name[1] = 0x00 + ha->port_no;
5065                 nv->port_name[2] = 0x00;
5066                 nv->port_name[3] = 0xe0;
5067                 nv->port_name[4] = 0x8b;
5068                 nv->port_name[5] = 0x1c;
5069                 nv->port_name[6] = 0x55;
5070                 nv->port_name[7] = 0x86;
5071                 nv->node_name[0] = 0x20;
5072                 nv->node_name[1] = 0x00;
5073                 nv->node_name[2] = 0x00;
5074                 nv->node_name[3] = 0xe0;
5075                 nv->node_name[4] = 0x8b;
5076                 nv->node_name[5] = 0x1c;
5077                 nv->node_name[6] = 0x55;
5078                 nv->node_name[7] = 0x86;
5079                 nv->login_retry_count = __constant_cpu_to_le16(8);
5080                 nv->interrupt_delay_timer = __constant_cpu_to_le16(0);
5081                 nv->login_timeout = __constant_cpu_to_le16(0);
5082                 nv->firmware_options_1 =
5083                     __constant_cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1);
5084                 nv->firmware_options_2 = __constant_cpu_to_le32(2 << 4);
5085                 nv->firmware_options_2 |= __constant_cpu_to_le32(BIT_12);
5086                 nv->firmware_options_3 = __constant_cpu_to_le32(2 << 13);
5087                 nv->host_p = __constant_cpu_to_le32(BIT_11|BIT_10);
5088                 nv->efi_parameters = __constant_cpu_to_le32(0);
5089                 nv->reset_delay = 5;
5090                 nv->max_luns_per_target = __constant_cpu_to_le16(128);
5091                 nv->port_down_retry_count = __constant_cpu_to_le16(30);
5092                 nv->link_down_timeout = __constant_cpu_to_le16(30);
5093                 nv->enode_mac[0] = 0x00;
5094                 nv->enode_mac[1] = 0x02;
5095                 nv->enode_mac[2] = 0x03;
5096                 nv->enode_mac[3] = 0x04;
5097                 nv->enode_mac[4] = 0x05;
5098                 nv->enode_mac[5] = 0x06 + ha->port_no;
5099
5100                 rval = 1;
5101         }
5102
5103         /* Reset Initialization control block */
5104         memset(icb, 0, sizeof(struct init_cb_81xx));
5105
5106         /* Copy 1st segment. */
5107         dptr1 = (uint8_t *)icb;
5108         dptr2 = (uint8_t *)&nv->version;
5109         cnt = (uint8_t *)&icb->response_q_inpointer - (uint8_t *)&icb->version;
5110         while (cnt--)
5111                 *dptr1++ = *dptr2++;
5112
5113         icb->login_retry_count = nv->login_retry_count;
5114
5115         /* Copy 2nd segment. */
5116         dptr1 = (uint8_t *)&icb->interrupt_delay_timer;
5117         dptr2 = (uint8_t *)&nv->interrupt_delay_timer;
5118         cnt = (uint8_t *)&icb->reserved_5 -
5119             (uint8_t *)&icb->interrupt_delay_timer;
5120         while (cnt--)
5121                 *dptr1++ = *dptr2++;
5122
5123         memcpy(icb->enode_mac, nv->enode_mac, sizeof(icb->enode_mac));
5124         /* Some boards (with valid NVRAMs) still have NULL enode_mac!! */
5125         if (!memcmp(icb->enode_mac, "\0\0\0\0\0\0", sizeof(icb->enode_mac))) {
5126                 icb->enode_mac[0] = 0x01;
5127                 icb->enode_mac[1] = 0x02;
5128                 icb->enode_mac[2] = 0x03;
5129                 icb->enode_mac[3] = 0x04;
5130                 icb->enode_mac[4] = 0x05;
5131                 icb->enode_mac[5] = 0x06 + ha->port_no;
5132         }
5133
5134         /* Use extended-initialization control block. */
5135         memcpy(ha->ex_init_cb, &nv->ex_version, sizeof(*ha->ex_init_cb));
5136
5137         /*
5138          * Setup driver NVRAM options.
5139          */
5140         qla2x00_set_model_info(vha, nv->model_name, sizeof(nv->model_name),
5141             "QLE8XXX");
5142
5143         /* Use alternate WWN? */
5144         if (nv->host_p & __constant_cpu_to_le32(BIT_15)) {
5145                 memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
5146                 memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
5147         }
5148
5149         /* Prepare nodename */
5150         if ((icb->firmware_options_1 & __constant_cpu_to_le32(BIT_14)) == 0) {
5151                 /*
5152                  * Firmware will apply the following mask if the nodename was
5153                  * not provided.
5154                  */
5155                 memcpy(icb->node_name, icb->port_name, WWN_SIZE);
5156                 icb->node_name[0] &= 0xF0;
5157         }
5158
5159         /* Set host adapter parameters. */
5160         ha->flags.disable_risc_code_load = 0;
5161         ha->flags.enable_lip_reset = 0;
5162         ha->flags.enable_lip_full_login =
5163             le32_to_cpu(nv->host_p) & BIT_10 ? 1: 0;
5164         ha->flags.enable_target_reset =
5165             le32_to_cpu(nv->host_p) & BIT_11 ? 1: 0;
5166         ha->flags.enable_led_scheme = 0;
5167         ha->flags.disable_serdes = le32_to_cpu(nv->host_p) & BIT_5 ? 1: 0;
5168
5169         ha->operating_mode = (le32_to_cpu(icb->firmware_options_2) &
5170             (BIT_6 | BIT_5 | BIT_4)) >> 4;
5171
5172         /* save HBA serial number */
5173         ha->serial0 = icb->port_name[5];
5174         ha->serial1 = icb->port_name[6];
5175         ha->serial2 = icb->port_name[7];
5176         memcpy(vha->node_name, icb->node_name, WWN_SIZE);
5177         memcpy(vha->port_name, icb->port_name, WWN_SIZE);
5178
5179         icb->execution_throttle = __constant_cpu_to_le16(0xFFFF);
5180
5181         ha->retry_count = le16_to_cpu(nv->login_retry_count);
5182
5183         /* Set minimum login_timeout to 4 seconds. */
5184         if (le16_to_cpu(nv->login_timeout) < ql2xlogintimeout)
5185                 nv->login_timeout = cpu_to_le16(ql2xlogintimeout);
5186         if (le16_to_cpu(nv->login_timeout) < 4)
5187                 nv->login_timeout = __constant_cpu_to_le16(4);
5188         ha->login_timeout = le16_to_cpu(nv->login_timeout);
5189         icb->login_timeout = nv->login_timeout;
5190
5191         /* Set minimum RATOV to 100 tenths of a second. */
5192         ha->r_a_tov = 100;
5193
5194         ha->loop_reset_delay = nv->reset_delay;
5195
5196         /* Link Down Timeout = 0:
5197          *
5198          *      When Port Down timer expires we will start returning
5199          *      I/O's to OS with "DID_NO_CONNECT".
5200          *
5201          * Link Down Timeout != 0:
5202          *
5203          *       The driver waits for the link to come up after link down
5204          *       before returning I/Os to OS with "DID_NO_CONNECT".
5205          */
5206         if (le16_to_cpu(nv->link_down_timeout) == 0) {
5207                 ha->loop_down_abort_time =
5208                     (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
5209         } else {
5210                 ha->link_down_timeout = le16_to_cpu(nv->link_down_timeout);
5211                 ha->loop_down_abort_time =
5212                     (LOOP_DOWN_TIME - ha->link_down_timeout);
5213         }
5214
5215         /* Need enough time to try and get the port back. */
5216         ha->port_down_retry_count = le16_to_cpu(nv->port_down_retry_count);
5217         if (qlport_down_retry)
5218                 ha->port_down_retry_count = qlport_down_retry;
5219
5220         /* Set login_retry_count */
5221         ha->login_retry_count  = le16_to_cpu(nv->login_retry_count);
5222         if (ha->port_down_retry_count ==
5223             le16_to_cpu(nv->port_down_retry_count) &&
5224             ha->port_down_retry_count > 3)
5225                 ha->login_retry_count = ha->port_down_retry_count;
5226         else if (ha->port_down_retry_count > (int)ha->login_retry_count)
5227                 ha->login_retry_count = ha->port_down_retry_count;
5228         if (ql2xloginretrycount)
5229                 ha->login_retry_count = ql2xloginretrycount;
5230
5231         /* Enable ZIO. */
5232         if (!vha->flags.init_done) {
5233                 ha->zio_mode = le32_to_cpu(icb->firmware_options_2) &
5234                     (BIT_3 | BIT_2 | BIT_1 | BIT_0);
5235                 ha->zio_timer = le16_to_cpu(icb->interrupt_delay_timer) ?
5236                     le16_to_cpu(icb->interrupt_delay_timer): 2;
5237         }
5238         icb->firmware_options_2 &= __constant_cpu_to_le32(
5239             ~(BIT_3 | BIT_2 | BIT_1 | BIT_0));
5240         vha->flags.process_response_queue = 0;
5241         if (ha->zio_mode != QLA_ZIO_DISABLED) {
5242                 ha->zio_mode = QLA_ZIO_MODE_6;
5243
5244                 DEBUG2(printk("scsi(%ld): ZIO mode %d enabled; timer delay "
5245                     "(%d us).\n", vha->host_no, ha->zio_mode,
5246                     ha->zio_timer * 100));
5247                 qla_printk(KERN_INFO, ha,
5248                     "ZIO mode %d enabled; timer delay (%d us).\n",
5249                     ha->zio_mode, ha->zio_timer * 100);
5250
5251                 icb->firmware_options_2 |= cpu_to_le32(
5252                     (uint32_t)ha->zio_mode);
5253                 icb->interrupt_delay_timer = cpu_to_le16(ha->zio_timer);
5254                 vha->flags.process_response_queue = 1;
5255         }
5256
5257         if (rval) {
5258                 DEBUG2_3(printk(KERN_WARNING
5259                     "scsi(%ld): NVRAM configuration failed!\n", vha->host_no));
5260         }
5261         return (rval);
5262 }
5263
5264 int
5265 qla82xx_restart_isp(scsi_qla_host_t *vha)
5266 {
5267         int status, rval;
5268         uint32_t wait_time;
5269         struct qla_hw_data *ha = vha->hw;
5270         struct req_que *req = ha->req_q_map[0];
5271         struct rsp_que *rsp = ha->rsp_q_map[0];
5272         struct scsi_qla_host *vp;
5273         unsigned long flags;
5274
5275         status = qla2x00_init_rings(vha);
5276         if (!status) {
5277                 clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
5278                 ha->flags.chip_reset_done = 1;
5279
5280                 status = qla2x00_fw_ready(vha);
5281                 if (!status) {
5282                         qla_printk(KERN_INFO, ha,
5283                         "%s(): Start configure loop, "
5284                         "status = %d\n", __func__, status);
5285
5286                         /* Issue a marker after FW becomes ready. */
5287                         qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL);
5288
5289                         vha->flags.online = 1;
5290                         /* Wait at most MAX_TARGET RSCNs for a stable link. */
5291                         wait_time = 256;
5292                         do {
5293                                 clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
5294                                 qla2x00_configure_loop(vha);
5295                                 wait_time--;
5296                         } while (!atomic_read(&vha->loop_down_timer) &&
5297                             !(test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags)) &&
5298                             wait_time &&
5299                             (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)));
5300                 }
5301
5302                 /* if no cable then assume it's good */
5303                 if ((vha->device_flags & DFLG_NO_CABLE))
5304                         status = 0;
5305
5306                 qla_printk(KERN_INFO, ha,
5307                         "%s(): Configure loop done, status = 0x%x\n",
5308                         __func__, status);
5309         }
5310
5311         if (!status) {
5312                 clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
5313
5314                 if (!atomic_read(&vha->loop_down_timer)) {
5315                         /*
5316                          * Issue marker command only when we are going
5317                          * to start the I/O .
5318                          */
5319                         vha->marker_needed = 1;
5320                 }
5321
5322                 vha->flags.online = 1;
5323
5324                 ha->isp_ops->enable_intrs(ha);
5325
5326                 ha->isp_abort_cnt = 0;
5327                 clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
5328
5329                 if (ha->fce) {
5330                         ha->flags.fce_enabled = 1;
5331                         memset(ha->fce, 0,
5332                             fce_calc_size(ha->fce_bufs));
5333                         rval = qla2x00_enable_fce_trace(vha,
5334                             ha->fce_dma, ha->fce_bufs, ha->fce_mb,
5335                             &ha->fce_bufs);
5336                         if (rval) {
5337                                 qla_printk(KERN_WARNING, ha,
5338                                     "Unable to reinitialize FCE "
5339                                     "(%d).\n", rval);
5340                                 ha->flags.fce_enabled = 0;
5341                         }
5342                 }
5343
5344                 if (ha->eft) {
5345                         memset(ha->eft, 0, EFT_SIZE);
5346                         rval = qla2x00_enable_eft_trace(vha,
5347                             ha->eft_dma, EFT_NUM_BUFFERS);
5348                         if (rval) {
5349                                 qla_printk(KERN_WARNING, ha,
5350                                     "Unable to reinitialize EFT "
5351                                     "(%d).\n", rval);
5352                         }
5353                 }
5354         }
5355
5356         if (!status) {
5357                 DEBUG(printk(KERN_INFO
5358                         "qla82xx_restart_isp(%ld): succeeded.\n",
5359                         vha->host_no));
5360
5361                 spin_lock_irqsave(&ha->vport_slock, flags);
5362                 list_for_each_entry(vp, &ha->vp_list, list) {
5363                         if (vp->vp_idx) {
5364                                 atomic_inc(&vp->vref_count);
5365                                 spin_unlock_irqrestore(&ha->vport_slock, flags);
5366
5367                                 qla2x00_vp_abort_isp(vp);
5368
5369                                 spin_lock_irqsave(&ha->vport_slock, flags);
5370                                 atomic_dec(&vp->vref_count);
5371                         }
5372                 }
5373                 spin_unlock_irqrestore(&ha->vport_slock, flags);
5374
5375         } else {
5376                 qla_printk(KERN_INFO, ha,
5377                         "qla82xx_restart_isp: **** FAILED ****\n");
5378         }
5379
5380         return status;
5381 }
5382
5383 void
5384 qla81xx_update_fw_options(scsi_qla_host_t *vha)
5385 {
5386         struct qla_hw_data *ha = vha->hw;
5387
5388         if (!ql2xetsenable)
5389                 return;
5390
5391         /* Enable ETS Burst. */
5392         memset(ha->fw_options, 0, sizeof(ha->fw_options));
5393         ha->fw_options[2] |= BIT_9;
5394         qla2x00_set_fw_options(vha, ha->fw_options);
5395 }
5396
5397 /*
5398  * qla24xx_get_fcp_prio
5399  *      Gets the fcp cmd priority value for the logged in port.
5400  *      Looks for a match of the port descriptors within
5401  *      each of the fcp prio config entries. If a match is found,
5402  *      the tag (priority) value is returned.
5403  *
5404  * Input:
5405  *      ha = adapter block po
5406  *      fcport = port structure pointer.
5407  *
5408  * Return:
5409  *      non-zero (if found)
5410  *      0 (if not found)
5411  *
5412  * Context:
5413  *      Kernel context
5414  */
5415 uint8_t
5416 qla24xx_get_fcp_prio(scsi_qla_host_t *vha, fc_port_t *fcport)
5417 {
5418         int i, entries;
5419         uint8_t pid_match, wwn_match;
5420         uint8_t priority;
5421         uint32_t pid1, pid2;
5422         uint64_t wwn1, wwn2;
5423         struct qla_fcp_prio_entry *pri_entry;
5424         struct qla_hw_data *ha = vha->hw;
5425
5426         if (!ha->fcp_prio_cfg || !ha->flags.fcp_prio_enabled)
5427                 return 0;
5428
5429         priority = 0;
5430         entries = ha->fcp_prio_cfg->num_entries;
5431         pri_entry = &ha->fcp_prio_cfg->entry[0];
5432
5433         for (i = 0; i < entries; i++) {
5434                 pid_match = wwn_match = 0;
5435
5436                 if (!(pri_entry->flags & FCP_PRIO_ENTRY_VALID)) {
5437                         pri_entry++;
5438                         continue;
5439                 }
5440
5441                 /* check source pid for a match */
5442                 if (pri_entry->flags & FCP_PRIO_ENTRY_SPID_VALID) {
5443                         pid1 = pri_entry->src_pid & INVALID_PORT_ID;
5444                         pid2 = vha->d_id.b24 & INVALID_PORT_ID;
5445                         if (pid1 == INVALID_PORT_ID)
5446                                 pid_match++;
5447                         else if (pid1 == pid2)
5448                                 pid_match++;
5449                 }
5450
5451                 /* check destination pid for a match */
5452                 if (pri_entry->flags & FCP_PRIO_ENTRY_DPID_VALID) {
5453                         pid1 = pri_entry->dst_pid & INVALID_PORT_ID;
5454                         pid2 = fcport->d_id.b24 & INVALID_PORT_ID;
5455                         if (pid1 == INVALID_PORT_ID)
5456                                 pid_match++;
5457                         else if (pid1 == pid2)
5458                                 pid_match++;
5459                 }
5460
5461                 /* check source WWN for a match */
5462                 if (pri_entry->flags & FCP_PRIO_ENTRY_SWWN_VALID) {
5463                         wwn1 = wwn_to_u64(vha->port_name);
5464                         wwn2 = wwn_to_u64(pri_entry->src_wwpn);
5465                         if (wwn2 == (uint64_t)-1)
5466                                 wwn_match++;
5467                         else if (wwn1 == wwn2)
5468                                 wwn_match++;
5469                 }
5470
5471                 /* check destination WWN for a match */
5472                 if (pri_entry->flags & FCP_PRIO_ENTRY_DWWN_VALID) {
5473                         wwn1 = wwn_to_u64(fcport->port_name);
5474                         wwn2 = wwn_to_u64(pri_entry->dst_wwpn);
5475                         if (wwn2 == (uint64_t)-1)
5476                                 wwn_match++;
5477                         else if (wwn1 == wwn2)
5478                                 wwn_match++;
5479                 }
5480
5481                 if (pid_match == 2 || wwn_match == 2) {
5482                         /* Found a matching entry */
5483                         if (pri_entry->flags & FCP_PRIO_ENTRY_TAG_VALID)
5484                                 priority = pri_entry->tag;
5485                         break;
5486                 }
5487
5488                 pri_entry++;
5489         }
5490
5491         return priority;
5492 }
5493
5494 /*
5495  * qla24xx_update_fcport_fcp_prio
5496  *      Activates fcp priority for the logged in fc port
5497  *
5498  * Input:
5499  *      ha = adapter block pointer.
5500  *      fcp = port structure pointer.
5501  *
5502  * Return:
5503  *      QLA_SUCCESS or QLA_FUNCTION_FAILED
5504  *
5505  * Context:
5506  *      Kernel context.
5507  */
5508 int
5509 qla24xx_update_fcport_fcp_prio(scsi_qla_host_t *ha, fc_port_t *fcport)
5510 {
5511         int ret;
5512         uint8_t priority;
5513         uint16_t mb[5];
5514
5515         if (atomic_read(&fcport->state) == FCS_UNCONFIGURED ||
5516                 fcport->port_type != FCT_TARGET ||
5517                 fcport->loop_id == FC_NO_LOOP_ID)
5518                 return QLA_FUNCTION_FAILED;
5519
5520         priority = qla24xx_get_fcp_prio(ha, fcport);
5521         ret = qla24xx_set_fcp_prio(ha, fcport->loop_id, priority, mb);
5522         if (ret == QLA_SUCCESS)
5523                 fcport->fcp_prio = priority;
5524         else
5525                 DEBUG2(printk(KERN_WARNING
5526                         "scsi(%ld): Unable to activate fcp priority, "
5527                         " ret=0x%x\n", ha->host_no, ret));
5528
5529         return  ret;
5530 }
5531
5532 /*
5533  * qla24xx_update_all_fcp_prio
5534  *      Activates fcp priority for all the logged in ports
5535  *
5536  * Input:
5537  *      ha = adapter block pointer.
5538  *
5539  * Return:
5540  *      QLA_SUCCESS or QLA_FUNCTION_FAILED
5541  *
5542  * Context:
5543  *      Kernel context.
5544  */
5545 int
5546 qla24xx_update_all_fcp_prio(scsi_qla_host_t *vha)
5547 {
5548         int ret;
5549         fc_port_t *fcport;
5550
5551         ret = QLA_FUNCTION_FAILED;
5552         /* We need to set priority for all logged in ports */
5553         list_for_each_entry(fcport, &vha->vp_fcports, list)
5554                 ret = qla24xx_update_fcport_fcp_prio(vha, fcport);
5555
5556         return ret;
5557 }