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   1 /*
   2  * QLogic Fibre Channel HBA Driver
   3  * Copyright (c)  2003-2008 QLogic Corporation
   4  *
   5  * See LICENSE.qla2xxx for copyright and licensing details.
   6  */
   7 #include "qla_def.h"
   8 #include "qla_gbl.h"
   9
  10 #include <linux/delay.h>
  11 #include <linux/vmalloc.h>
  12
  13 #include "qla_devtbl.h"
  14
  15 #ifdef CONFIG_SPARC
  16 #include <asm/prom.h>
  17 #endif
  18
  19 /*
  20 *  QLogic ISP2x00 Hardware Support Function Prototypes.
  21 */
  22 static int qla2x00_isp_firmware(scsi_qla_host_t *);
  23 static int qla2x00_setup_chip(scsi_qla_host_t *);
  24 static int qla2x00_init_rings(scsi_qla_host_t *);
  25 static int qla2x00_fw_ready(scsi_qla_host_t *);
  26 static int qla2x00_configure_hba(scsi_qla_host_t *);
  27 static int qla2x00_configure_loop(scsi_qla_host_t *);
  28 static int qla2x00_configure_local_loop(scsi_qla_host_t *);
  29 static int qla2x00_configure_fabric(scsi_qla_host_t *);
  30 static int qla2x00_find_all_fabric_devs(scsi_qla_host_t *, struct list_head *);
  31 static int qla2x00_device_resync(scsi_qla_host_t *);
  32 static int qla2x00_fabric_dev_login(scsi_qla_host_t *, fc_port_t *,
  33     uint16_t *);
  34
  35 static int qla2x00_restart_isp(scsi_qla_host_t *);
  36
  37 static int qla2x00_find_new_loop_id(scsi_qla_host_t *, fc_port_t *);
  38
  39 static struct qla_chip_state_84xx *qla84xx_get_chip(struct scsi_qla_host *);
  40 static int qla84xx_init_chip(scsi_qla_host_t *);
  41 static int qla25xx_init_queues(struct qla_hw_data *);
  42
  43 /* SRB Extensions ---------------------------------------------------------- */
  44
  45 static void
  46 qla2x00_ctx_sp_timeout(unsigned long __data)
  47 {
  48         srb_t *sp = (srb_t *)__data;
  49         struct srb_ctx *ctx;
  50         fc_port_t *fcport = sp->fcport;
  51         struct qla_hw_data *ha = fcport->vha->hw;
  52         struct req_que *req;
  53         unsigned long flags;
  54
  55         spin_lock_irqsave(&ha->hardware_lock, flags);
  56         req = ha->req_q_map[0];
  57         req->outstanding_cmds[sp->handle] = NULL;
  58         ctx = sp->ctx;
  59         ctx->timeout(sp);
  60         spin_unlock_irqrestore(&ha->hardware_lock, flags);
  61
  62         ctx->free(sp);
  63 }
  64
  65 void
  66 qla2x00_ctx_sp_free(srb_t *sp)
  67 {
  68         struct srb_ctx *ctx = sp->ctx;
  69
  70         kfree(ctx);
  71         mempool_free(sp, sp->fcport->vha->hw->srb_mempool);
  72 }
  73
  74 inline srb_t *
  75 qla2x00_get_ctx_sp(scsi_qla_host_t *vha, fc_port_t *fcport, size_t size,
  76     unsigned long tmo)
  77 {
  78         srb_t *sp;
  79         struct qla_hw_data *ha = vha->hw;
  80         struct srb_ctx *ctx;
  81
  82         sp = mempool_alloc(ha->srb_mempool, GFP_KERNEL);
  83         if (!sp)
  84                 goto done;
  85         ctx = kzalloc(size, GFP_KERNEL);
  86         if (!ctx) {
  87                 mempool_free(sp, ha->srb_mempool);
  88                 goto done;
  89         }
  90
  91         memset(sp, 0, sizeof(*sp));
  92         sp->fcport = fcport;
  93         sp->ctx = ctx;
  94         ctx->free = qla2x00_ctx_sp_free;
  95
  96         init_timer(&ctx->timer);
  97         if (!tmo)
  98                 goto done;
  99         ctx->timer.expires = jiffies + tmo * HZ;
 100         ctx->timer.data = (unsigned long)sp;
 101         ctx->timer.function = qla2x00_ctx_sp_timeout;
 102         add_timer(&ctx->timer);
 103 done:
 104         return sp;
 105 }
 106
 107 /* Asynchronous Login/Logout Routines -------------------------------------- */
 108
 109 #define ELS_TMO_2_RATOV(ha) ((ha)->r_a_tov / 10 * 2)
 110
 111 static void
 112 qla2x00_async_logio_timeout(srb_t *sp)
 113 {
 114         fc_port_t *fcport = sp->fcport;
 115         struct srb_logio *lio = sp->ctx;
 116
 117         DEBUG2(printk(KERN_WARNING
 118             "scsi(%ld:%x): Async-%s timeout.\n",
 119             fcport->vha->host_no, sp->handle,
 120             lio->ctx.type == SRB_LOGIN_CMD ? "login": "logout"));
 121
 122         if (lio->ctx.type == SRB_LOGIN_CMD)
 123                 qla2x00_post_async_logout_work(fcport->vha, fcport, NULL);
 124 }
 125
 126 int
 127 qla2x00_async_login(struct scsi_qla_host *vha, fc_port_t *fcport,
 128     uint16_t *data)
 129 {
 130         struct qla_hw_data *ha = vha->hw;
 131         srb_t *sp;
 132         struct srb_logio *lio;
 133         int rval;
 134
 135         rval = QLA_FUNCTION_FAILED;
 136         sp = qla2x00_get_ctx_sp(vha, fcport, sizeof(struct srb_logio),
 137             ELS_TMO_2_RATOV(ha) + 2);
 138         if (!sp)
 139                 goto done;
 140
 141         lio = sp->ctx;
 142         lio->ctx.type = SRB_LOGIN_CMD;
 143         lio->ctx.timeout = qla2x00_async_logio_timeout;
 144         lio->flags |= SRB_LOGIN_COND_PLOGI;
 145         if (data[1] & QLA_LOGIO_LOGIN_RETRIED)
 146                 lio->flags |= SRB_LOGIN_RETRIED;
 147         rval = qla2x00_start_sp(sp);
 148         if (rval != QLA_SUCCESS)
 149                 goto done_free_sp;
 150
 151         DEBUG2(printk(KERN_DEBUG
 152             "scsi(%ld:%x): Async-login - loop-id=%x portid=%02x%02x%02x "
 153             "retries=%d.\n", fcport->vha->host_no, sp->handle, fcport->loop_id,
 154             fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa,
 155             fcport->login_retry));
 156         return rval;
 157
 158 done_free_sp:
 159         del_timer_sync(&lio->ctx.timer);
 160         lio->ctx.free(sp);
 161 done:
 162         return rval;
 163 }
 164
 165 int
 166 qla2x00_async_logout(struct scsi_qla_host *vha, fc_port_t *fcport)
 167 {
 168         struct qla_hw_data *ha = vha->hw;
 169         srb_t *sp;
 170         struct srb_logio *lio;
 171         int rval;
 172
 173         rval = QLA_FUNCTION_FAILED;
 174         sp = qla2x00_get_ctx_sp(vha, fcport, sizeof(struct srb_logio),
 175             ELS_TMO_2_RATOV(ha) + 2);
 176         if (!sp)
 177                 goto done;
 178
 179         lio = sp->ctx;
 180         lio->ctx.type = SRB_LOGOUT_CMD;
 181         lio->ctx.timeout = qla2x00_async_logio_timeout;
 182         rval = qla2x00_start_sp(sp);
 183         if (rval != QLA_SUCCESS)
 184                 goto done_free_sp;
 185
 186         DEBUG2(printk(KERN_DEBUG
 187             "scsi(%ld:%x): Async-logout - loop-id=%x portid=%02x%02x%02x.\n",
 188             fcport->vha->host_no, sp->handle, fcport->loop_id,
 189             fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa));
 190         return rval;
 191
 192 done_free_sp:
 193         del_timer_sync(&lio->ctx.timer);
 194         lio->ctx.free(sp);
 195 done:
 196         return rval;
 197 }
 198
 199 int
 200 qla2x00_async_login_done(struct scsi_qla_host *vha, fc_port_t *fcport,
 201     uint16_t *data)
 202 {
 203         int rval;
 204         uint8_t opts = 0;
 205
 206         switch (data[0]) {
 207         case MBS_COMMAND_COMPLETE:
 208                 if (fcport->flags & FCF_FCP2_DEVICE)
 209                         opts |= BIT_1;
 210                 rval = qla2x00_get_port_database(vha, fcport, opts);
 211                 if (rval != QLA_SUCCESS)
 212                         qla2x00_mark_device_lost(vha, fcport, 1, 0);
 213                 else
 214                         qla2x00_update_fcport(vha, fcport);
 215                 break;
 216         case MBS_COMMAND_ERROR:
 217                 if (data[1] & QLA_LOGIO_LOGIN_RETRIED)
 218                         set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
 219                 else
 220                         qla2x00_mark_device_lost(vha, fcport, 1, 0);
 221                 break;
 222         case MBS_PORT_ID_USED:
 223                 fcport->loop_id = data[1];
 224                 qla2x00_post_async_login_work(vha, fcport, NULL);
 225                 break;
 226         case MBS_LOOP_ID_USED:
 227                 fcport->loop_id++;
 228                 rval = qla2x00_find_new_loop_id(vha, fcport);
 229                 if (rval != QLA_SUCCESS) {
 230                         qla2x00_mark_device_lost(vha, fcport, 1, 0);
 231                         break;
 232                 }
 233                 qla2x00_post_async_login_work(vha, fcport, NULL);
 234                 break;
 235         }
 236         return QLA_SUCCESS;
 237 }
 238
 239 int
 240 qla2x00_async_logout_done(struct scsi_qla_host *vha, fc_port_t *fcport,
 241     uint16_t *data)
 242 {
 243         qla2x00_mark_device_lost(vha, fcport, 1, 0);
 244         return QLA_SUCCESS;
 245 }
 246
 247 /****************************************************************************/
 248 /*                QLogic ISP2x00 Hardware Support Functions.                */
 249 /****************************************************************************/
 250
 251 /*
 252 * qla2x00_initialize_adapter
 253 *      Initialize board.
 254 *
 255 * Input:
 256 *      ha = adapter block pointer.
 257 *
 258 * Returns:
 259 *      0 = success
 260 */
 261 int
 262 qla2x00_initialize_adapter(scsi_qla_host_t *vha)
 263 {
 264         int     rval;
 265         struct qla_hw_data *ha = vha->hw;
 266         struct req_que *req = ha->req_q_map[0];
 267
 268         /* Clear adapter flags. */
 269         vha->flags.online = 0;
 270         ha->flags.chip_reset_done = 0;
 271         vha->flags.reset_active = 0;
 272         ha->flags.pci_channel_io_perm_failure = 0;
 273         ha->flags.eeh_busy = 0;
 274         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
 275         atomic_set(&vha->loop_state, LOOP_DOWN);
 276         vha->device_flags = DFLG_NO_CABLE;
 277         vha->dpc_flags = 0;
 278         vha->flags.management_server_logged_in = 0;
 279         vha->marker_needed = 0;
 280         ha->isp_abort_cnt = 0;
 281         ha->beacon_blink_led = 0;
 282
 283         set_bit(0, ha->req_qid_map);
 284         set_bit(0, ha->rsp_qid_map);
 285
 286         qla_printk(KERN_INFO, ha, "Configuring PCI space...\n");
 287         rval = ha->isp_ops->pci_config(vha);
 288         if (rval) {
 289                 DEBUG2(printk("scsi(%ld): Unable to configure PCI space.\n",
 290                     vha->host_no));
 291                 return (rval);
 292         }
 293
 294         ha->isp_ops->reset_chip(vha);
 295
 296         rval = qla2xxx_get_flash_info(vha);
 297         if (rval) {
 298                 DEBUG2(printk("scsi(%ld): Unable to validate FLASH data.\n",
 299                     vha->host_no));
 300                 return (rval);
 301         }
 302
 303         ha->isp_ops->get_flash_version(vha, req->ring);
 304
 305         qla_printk(KERN_INFO, ha, "Configure NVRAM parameters...\n");
 306
 307         ha->isp_ops->nvram_config(vha);
 308
 309         if (ha->flags.disable_serdes) {
 310                 /* Mask HBA via NVRAM settings? */
 311                 qla_printk(KERN_INFO, ha, "Masking HBA WWPN "
 312                     "%02x%02x%02x%02x%02x%02x%02x%02x (via NVRAM).\n",
 313                     vha->port_name[0], vha->port_name[1],
 314                     vha->port_name[2], vha->port_name[3],
 315                     vha->port_name[4], vha->port_name[5],
 316                     vha->port_name[6], vha->port_name[7]);
 317                 return QLA_FUNCTION_FAILED;
 318         }
 319
 320         qla_printk(KERN_INFO, ha, "Verifying loaded RISC code...\n");
 321
 322         if (qla2x00_isp_firmware(vha) != QLA_SUCCESS) {
 323                 rval = ha->isp_ops->chip_diag(vha);
 324                 if (rval)
 325                         return (rval);
 326                 rval = qla2x00_setup_chip(vha);
 327                 if (rval)
 328                         return (rval);
 329         }
 330         if (IS_QLA84XX(ha)) {
 331                 ha->cs84xx = qla84xx_get_chip(vha);
 332                 if (!ha->cs84xx) {
 333                         qla_printk(KERN_ERR, ha,
 334                             "Unable to configure ISP84XX.\n");
 335                         return QLA_FUNCTION_FAILED;
 336                 }
 337         }
 338         rval = qla2x00_init_rings(vha);
 339         ha->flags.chip_reset_done = 1;
 340
 341         if (rval == QLA_SUCCESS && IS_QLA84XX(ha)) {
 342         /* Issue verify 84xx FW IOCB to complete 84xx initialization */
 343                 rval = qla84xx_init_chip(vha);
 344                 if (rval != QLA_SUCCESS) {
 345                         qla_printk(KERN_ERR, ha,
 346                                 "Unable to initialize ISP84XX.\n");
 347                 qla84xx_put_chip(vha);
 348                 }
 349         }
 350
 351         return (rval);
 352 }
 353
 354 /**
 355  * qla2100_pci_config() - Setup ISP21xx PCI configuration registers.
 356  * @ha: HA context
 357  *
 358  * Returns 0 on success.
 359  */
 360 int
 361 qla2100_pci_config(scsi_qla_host_t *vha)
 362 {
 363         uint16_t w;
 364         unsigned long flags;
 365         struct qla_hw_data *ha = vha->hw;
 366         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 367
 368         pci_set_master(ha->pdev);
 369         pci_try_set_mwi(ha->pdev);
 370
 371         pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
 372         w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
 373         pci_write_config_word(ha->pdev, PCI_COMMAND, w);
 374
 375         pci_disable_rom(ha->pdev);
 376
 377         /* Get PCI bus information. */
 378         spin_lock_irqsave(&ha->hardware_lock, flags);
 379         ha->pci_attr = RD_REG_WORD(&reg->ctrl_status);
 380         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 381
 382         return QLA_SUCCESS;
 383 }
 384
 385 /**
 386  * qla2300_pci_config() - Setup ISP23xx PCI configuration registers.
 387  * @ha: HA context
 388  *
 389  * Returns 0 on success.
 390  */
 391 int
 392 qla2300_pci_config(scsi_qla_host_t *vha)
 393 {
 394         uint16_t        w;
 395         unsigned long   flags = 0;
 396         uint32_t        cnt;
 397         struct qla_hw_data *ha = vha->hw;
 398         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 399
 400         pci_set_master(ha->pdev);
 401         pci_try_set_mwi(ha->pdev);
 402
 403         pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
 404         w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
 405
 406         if (IS_QLA2322(ha) || IS_QLA6322(ha))
 407                 w &= ~PCI_COMMAND_INTX_DISABLE;
 408         pci_write_config_word(ha->pdev, PCI_COMMAND, w);
 409
 410         /*
 411          * If this is a 2300 card and not 2312, reset the
 412          * COMMAND_INVALIDATE due to a bug in the 2300. Unfortunately,
 413          * the 2310 also reports itself as a 2300 so we need to get the
 414          * fb revision level -- a 6 indicates it really is a 2300 and
 415          * not a 2310.
 416          */
 417         if (IS_QLA2300(ha)) {
 418                 spin_lock_irqsave(&ha->hardware_lock, flags);
 419
 420                 /* Pause RISC. */
 421                 WRT_REG_WORD(&reg->hccr, HCCR_PAUSE_RISC);
 422                 for (cnt = 0; cnt < 30000; cnt++) {
 423                         if ((RD_REG_WORD(&reg->hccr) & HCCR_RISC_PAUSE) != 0)
 424                                 break;
 425
 426                         udelay(10);
 427                 }
 428
 429                 /* Select FPM registers. */
 430                 WRT_REG_WORD(&reg->ctrl_status, 0x20);
 431                 RD_REG_WORD(&reg->ctrl_status);
 432
 433                 /* Get the fb rev level */
 434                 ha->fb_rev = RD_FB_CMD_REG(ha, reg);
 435
 436                 if (ha->fb_rev == FPM_2300)
 437                         pci_clear_mwi(ha->pdev);
 438
 439                 /* Deselect FPM registers. */
 440                 WRT_REG_WORD(&reg->ctrl_status, 0x0);
 441                 RD_REG_WORD(&reg->ctrl_status);
 442
 443                 /* Release RISC module. */
 444                 WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
 445                 for (cnt = 0; cnt < 30000; cnt++) {
 446                         if ((RD_REG_WORD(&reg->hccr) & HCCR_RISC_PAUSE) == 0)
 447                                 break;
 448
 449                         udelay(10);
 450                 }
 451
 452                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 453         }
 454
 455         pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);
 456
 457         pci_disable_rom(ha->pdev);
 458
 459         /* Get PCI bus information. */
 460         spin_lock_irqsave(&ha->hardware_lock, flags);
 461         ha->pci_attr = RD_REG_WORD(&reg->ctrl_status);
 462         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 463
 464         return QLA_SUCCESS;
 465 }
 466
 467 /**
 468  * qla24xx_pci_config() - Setup ISP24xx PCI configuration registers.
 469  * @ha: HA context
 470  *
 471  * Returns 0 on success.
 472  */
 473 int
 474 qla24xx_pci_config(scsi_qla_host_t *vha)
 475 {
 476         uint16_t w;
 477         unsigned long flags = 0;
 478         struct qla_hw_data *ha = vha->hw;
 479         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
 480
 481         pci_set_master(ha->pdev);
 482         pci_try_set_mwi(ha->pdev);
 483
 484         pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
 485         w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
 486         w &= ~PCI_COMMAND_INTX_DISABLE;
 487         pci_write_config_word(ha->pdev, PCI_COMMAND, w);
 488
 489         pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);
 490
 491         /* PCI-X -- adjust Maximum Memory Read Byte Count (2048). */
 492         if (pci_find_capability(ha->pdev, PCI_CAP_ID_PCIX))
 493                 pcix_set_mmrbc(ha->pdev, 2048);
 494
 495         /* PCIe -- adjust Maximum Read Request Size (2048). */
 496         if (pci_find_capability(ha->pdev, PCI_CAP_ID_EXP))
 497                 pcie_set_readrq(ha->pdev, 2048);
 498
 499         pci_disable_rom(ha->pdev);
 500
 501         ha->chip_revision = ha->pdev->revision;
 502
 503         /* Get PCI bus information. */
 504         spin_lock_irqsave(&ha->hardware_lock, flags);
 505         ha->pci_attr = RD_REG_DWORD(&reg->ctrl_status);
 506         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 507
 508         return QLA_SUCCESS;
 509 }
 510
 511 /**
 512  * qla25xx_pci_config() - Setup ISP25xx PCI configuration registers.
 513  * @ha: HA context
 514  *
 515  * Returns 0 on success.
 516  */
 517 int
 518 qla25xx_pci_config(scsi_qla_host_t *vha)
 519 {
 520         uint16_t w;
 521         struct qla_hw_data *ha = vha->hw;
 522
 523         pci_set_master(ha->pdev);
 524         pci_try_set_mwi(ha->pdev);
 525
 526         pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
 527         w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
 528         w &= ~PCI_COMMAND_INTX_DISABLE;
 529         pci_write_config_word(ha->pdev, PCI_COMMAND, w);
 530
 531         /* PCIe -- adjust Maximum Read Request Size (2048). */
 532         if (pci_find_capability(ha->pdev, PCI_CAP_ID_EXP))
 533                 pcie_set_readrq(ha->pdev, 2048);
 534
 535         pci_disable_rom(ha->pdev);
 536
 537         ha->chip_revision = ha->pdev->revision;
 538
 539         return QLA_SUCCESS;
 540 }
 541
 542 /**
 543  * qla2x00_isp_firmware() - Choose firmware image.
 544  * @ha: HA context
 545  *
 546  * Returns 0 on success.
 547  */
 548 static int
 549 qla2x00_isp_firmware(scsi_qla_host_t *vha)
 550 {
 551         int  rval;
 552         uint16_t loop_id, topo, sw_cap;
 553         uint8_t domain, area, al_pa;
 554         struct qla_hw_data *ha = vha->hw;
 555
 556         /* Assume loading risc code */
 557         rval = QLA_FUNCTION_FAILED;
 558
 559         if (ha->flags.disable_risc_code_load) {
 560                 DEBUG2(printk("scsi(%ld): RISC CODE NOT loaded\n",
 561                     vha->host_no));
 562                 qla_printk(KERN_INFO, ha, "RISC CODE NOT loaded\n");
 563
 564                 /* Verify checksum of loaded RISC code. */
 565                 rval = qla2x00_verify_checksum(vha, ha->fw_srisc_address);
 566                 if (rval == QLA_SUCCESS) {
 567                         /* And, verify we are not in ROM code. */
 568                         rval = qla2x00_get_adapter_id(vha, &loop_id, &al_pa,
 569                             &area, &domain, &topo, &sw_cap);
 570                 }
 571         }
 572
 573         if (rval) {
 574                 DEBUG2_3(printk("scsi(%ld): **** Load RISC code ****\n",
 575                     vha->host_no));
 576         }
 577
 578         return (rval);
 579 }
 580
 581 /**
 582  * qla2x00_reset_chip() - Reset ISP chip.
 583  * @ha: HA context
 584  *
 585  * Returns 0 on success.
 586  */
 587 void
 588 qla2x00_reset_chip(scsi_qla_host_t *vha)
 589 {
 590         unsigned long   flags = 0;
 591         struct qla_hw_data *ha = vha->hw;
 592         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 593         uint32_t        cnt;
 594         uint16_t        cmd;
 595
 596         if (unlikely(pci_channel_offline(ha->pdev)))
 597                 return;
 598
 599         ha->isp_ops->disable_intrs(ha);
 600
 601         spin_lock_irqsave(&ha->hardware_lock, flags);
 602
 603         /* Turn off master enable */
 604         cmd = 0;
 605         pci_read_config_word(ha->pdev, PCI_COMMAND, &cmd);
 606         cmd &= ~PCI_COMMAND_MASTER;
 607         pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
 608
 609         if (!IS_QLA2100(ha)) {
 610                 /* Pause RISC. */
 611                 WRT_REG_WORD(&reg->hccr, HCCR_PAUSE_RISC);
 612                 if (IS_QLA2200(ha) || IS_QLA2300(ha)) {
 613                         for (cnt = 0; cnt < 30000; cnt++) {
 614                                 if ((RD_REG_WORD(&reg->hccr) &
 615                                     HCCR_RISC_PAUSE) != 0)
 616                                         break;
 617                                 udelay(100);
 618                         }
 619                 } else {
 620                         RD_REG_WORD(&reg->hccr);        /* PCI Posting. */
 621                         udelay(10);
 622                 }
 623
 624                 /* Select FPM registers. */
 625                 WRT_REG_WORD(&reg->ctrl_status, 0x20);
 626                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
 627
 628                 /* FPM Soft Reset. */
 629                 WRT_REG_WORD(&reg->fpm_diag_config, 0x100);
 630                 RD_REG_WORD(&reg->fpm_diag_config);     /* PCI Posting. */
 631
 632                 /* Toggle Fpm Reset. */
 633                 if (!IS_QLA2200(ha)) {
 634                         WRT_REG_WORD(&reg->fpm_diag_config, 0x0);
 635                         RD_REG_WORD(&reg->fpm_diag_config); /* PCI Posting. */
 636                 }
 637
 638                 /* Select frame buffer registers. */
 639                 WRT_REG_WORD(&reg->ctrl_status, 0x10);
 640                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
 641
 642                 /* Reset frame buffer FIFOs. */
 643                 if (IS_QLA2200(ha)) {
 644                         WRT_FB_CMD_REG(ha, reg, 0xa000);
 645                         RD_FB_CMD_REG(ha, reg);         /* PCI Posting. */
 646                 } else {
 647                         WRT_FB_CMD_REG(ha, reg, 0x00fc);
 648
 649                         /* Read back fb_cmd until zero or 3 seconds max */
 650                         for (cnt = 0; cnt < 3000; cnt++) {
 651                                 if ((RD_FB_CMD_REG(ha, reg) & 0xff) == 0)
 652                                         break;
 653                                 udelay(100);
 654                         }
 655                 }
 656
 657                 /* Select RISC module registers. */
 658                 WRT_REG_WORD(&reg->ctrl_status, 0);
 659                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
 660
 661                 /* Reset RISC processor. */
 662                 WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
 663                 RD_REG_WORD(&reg->hccr);                /* PCI Posting. */
 664
 665                 /* Release RISC processor. */
 666                 WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
 667                 RD_REG_WORD(&reg->hccr);                /* PCI Posting. */
 668         }
 669
 670         WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
 671         WRT_REG_WORD(&reg->hccr, HCCR_CLR_HOST_INT);
 672
 673         /* Reset ISP chip. */
 674         WRT_REG_WORD(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
 675
 676         /* Wait for RISC to recover from reset. */
 677         if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
 678                 /*
 679                  * It is necessary to for a delay here since the card doesn't
 680                  * respond to PCI reads during a reset. On some architectures
 681                  * this will result in an MCA.
 682                  */
 683                 udelay(20);
 684                 for (cnt = 30000; cnt; cnt--) {
 685                         if ((RD_REG_WORD(&reg->ctrl_status) &
 686                             CSR_ISP_SOFT_RESET) == 0)
 687                                 break;
 688                         udelay(100);
 689                 }
 690         } else
 691                 udelay(10);
 692
 693         /* Reset RISC processor. */
 694         WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
 695
 696         WRT_REG_WORD(&reg->semaphore, 0);
 697
 698         /* Release RISC processor. */
 699         WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
 700         RD_REG_WORD(&reg->hccr);                        /* PCI Posting. */
 701
 702         if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
 703                 for (cnt = 0; cnt < 30000; cnt++) {
 704                         if (RD_MAILBOX_REG(ha, reg, 0) != MBS_BUSY)
 705                                 break;
 706
 707                         udelay(100);
 708                 }
 709         } else
 710                 udelay(100);
 711
 712         /* Turn on master enable */
 713         cmd |= PCI_COMMAND_MASTER;
 714         pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
 715
 716         /* Disable RISC pause on FPM parity error. */
 717         if (!IS_QLA2100(ha)) {
 718                 WRT_REG_WORD(&reg->hccr, HCCR_DISABLE_PARITY_PAUSE);
 719                 RD_REG_WORD(&reg->hccr);                /* PCI Posting. */
 720         }
 721
 722         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 723 }
 724
 725 /**
 726  * qla24xx_reset_risc() - Perform full reset of ISP24xx RISC.
 727  * @ha: HA context
 728  *
 729  * Returns 0 on success.
 730  */
 731 static inline void
 732 qla24xx_reset_risc(scsi_qla_host_t *vha)
 733 {
 734         unsigned long flags = 0;
 735         struct qla_hw_data *ha = vha->hw;
 736         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
 737         uint32_t cnt, d2;
 738         uint16_t wd;
 739
 740         spin_lock_irqsave(&ha->hardware_lock, flags);
 741
 742         /* Reset RISC. */
 743         WRT_REG_DWORD(&reg->ctrl_status, CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
 744         for (cnt = 0; cnt < 30000; cnt++) {
 745                 if ((RD_REG_DWORD(&reg->ctrl_status) & CSRX_DMA_ACTIVE) == 0)
 746                         break;
 747
 748                 udelay(10);
 749         }
 750
 751         WRT_REG_DWORD(&reg->ctrl_status,
 752             CSRX_ISP_SOFT_RESET|CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
 753         pci_read_config_word(ha->pdev, PCI_COMMAND, &wd);
 754
 755         udelay(100);
 756         /* Wait for firmware to complete NVRAM accesses. */
 757         d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
 758         for (cnt = 10000 ; cnt && d2; cnt--) {
 759                 udelay(5);
 760                 d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
 761                 barrier();
 762         }
 763
 764         /* Wait for soft-reset to complete. */
 765         d2 = RD_REG_DWORD(&reg->ctrl_status);
 766         for (cnt = 6000000 ; cnt && (d2 & CSRX_ISP_SOFT_RESET); cnt--) {
 767                 udelay(5);
 768                 d2 = RD_REG_DWORD(&reg->ctrl_status);
 769                 barrier();
 770         }
 771
 772         WRT_REG_DWORD(&reg->hccr, HCCRX_SET_RISC_RESET);
 773         RD_REG_DWORD(&reg->hccr);
 774
 775         WRT_REG_DWORD(&reg->hccr, HCCRX_REL_RISC_PAUSE);
 776         RD_REG_DWORD(&reg->hccr);
 777
 778         WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_RESET);
 779         RD_REG_DWORD(&reg->hccr);
 780
 781         d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
 782         for (cnt = 6000000 ; cnt && d2; cnt--) {
 783                 udelay(5);
 784                 d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
 785                 barrier();
 786         }
 787
 788         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 789
 790         if (IS_NOPOLLING_TYPE(ha))
 791                 ha->isp_ops->enable_intrs(ha);
 792 }
 793
 794 /**
 795  * qla24xx_reset_chip() - Reset ISP24xx chip.
 796  * @ha: HA context
 797  *
 798  * Returns 0 on success.
 799  */
 800 void
 801 qla24xx_reset_chip(scsi_qla_host_t *vha)
 802 {
 803         struct qla_hw_data *ha = vha->hw;
 804
 805         if (pci_channel_offline(ha->pdev) &&
 806             ha->flags.pci_channel_io_perm_failure) {
 807                 return;
 808         }
 809
 810         ha->isp_ops->disable_intrs(ha);
 811
 812         /* Perform RISC reset. */
 813         qla24xx_reset_risc(vha);
 814 }
 815
 816 /**
 817  * qla2x00_chip_diag() - Test chip for proper operation.
 818  * @ha: HA context
 819  *
 820  * Returns 0 on success.
 821  */
 822 int
 823 qla2x00_chip_diag(scsi_qla_host_t *vha)
 824 {
 825         int             rval;
 826         struct qla_hw_data *ha = vha->hw;
 827         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 828         unsigned long   flags = 0;
 829         uint16_t        data;
 830         uint32_t        cnt;
 831         uint16_t        mb[5];
 832         struct req_que *req = ha->req_q_map[0];
 833
 834         /* Assume a failed state */
 835         rval = QLA_FUNCTION_FAILED;
 836
 837         DEBUG3(printk("scsi(%ld): Testing device at %lx.\n",
 838             vha->host_no, (u_long)&reg->flash_address));
 839
 840         spin_lock_irqsave(&ha->hardware_lock, flags);
 841
 842         /* Reset ISP chip. */
 843         WRT_REG_WORD(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
 844
 845         /*
 846          * We need to have a delay here since the card will not respond while
 847          * in reset causing an MCA on some architectures.
 848          */
 849         udelay(20);
 850         data = qla2x00_debounce_register(&reg->ctrl_status);
 851         for (cnt = 6000000 ; cnt && (data & CSR_ISP_SOFT_RESET); cnt--) {
 852                 udelay(5);
 853                 data = RD_REG_WORD(&reg->ctrl_status);
 854                 barrier();
 855         }
 856
 857         if (!cnt)
 858                 goto chip_diag_failed;
 859
 860         DEBUG3(printk("scsi(%ld): Reset register cleared by chip reset\n",
 861             vha->host_no));
 862
 863         /* Reset RISC processor. */
 864         WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
 865         WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
 866
 867         /* Workaround for QLA2312 PCI parity error */
 868         if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
 869                 data = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 0));
 870                 for (cnt = 6000000; cnt && (data == MBS_BUSY); cnt--) {
 871                         udelay(5);
 872                         data = RD_MAILBOX_REG(ha, reg, 0);
 873                         barrier();
 874                 }
 875         } else
 876                 udelay(10);
 877
 878         if (!cnt)
 879                 goto chip_diag_failed;
 880
 881         /* Check product ID of chip */
 882         DEBUG3(printk("scsi(%ld): Checking product ID of chip\n", vha->host_no));
 883
 884         mb[1] = RD_MAILBOX_REG(ha, reg, 1);
 885         mb[2] = RD_MAILBOX_REG(ha, reg, 2);
 886         mb[3] = RD_MAILBOX_REG(ha, reg, 3);
 887         mb[4] = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 4));
 888         if (mb[1] != PROD_ID_1 || (mb[2] != PROD_ID_2 && mb[2] != PROD_ID_2a) ||
 889             mb[3] != PROD_ID_3) {
 890                 qla_printk(KERN_WARNING, ha,
 891                     "Wrong product ID = 0x%x,0x%x,0x%x\n", mb[1], mb[2], mb[3]);
 892
 893                 goto chip_diag_failed;
 894         }
 895         ha->product_id[0] = mb[1];
 896         ha->product_id[1] = mb[2];
 897         ha->product_id[2] = mb[3];
 898         ha->product_id[3] = mb[4];
 899
 900         /* Adjust fw RISC transfer size */
 901         if (req->length > 1024)
 902                 ha->fw_transfer_size = REQUEST_ENTRY_SIZE * 1024;
 903         else
 904                 ha->fw_transfer_size = REQUEST_ENTRY_SIZE *
 905                     req->length;
 906
 907         if (IS_QLA2200(ha) &&
 908             RD_MAILBOX_REG(ha, reg, 7) == QLA2200A_RISC_ROM_VER) {
 909                 /* Limit firmware transfer size with a 2200A */
 910                 DEBUG3(printk("scsi(%ld): Found QLA2200A chip.\n",
 911                     vha->host_no));
 912
 913                 ha->device_type |= DT_ISP2200A;
 914                 ha->fw_transfer_size = 128;
 915         }
 916
 917         /* Wrap Incoming Mailboxes Test. */
 918         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 919
 920         DEBUG3(printk("scsi(%ld): Checking mailboxes.\n", vha->host_no));
 921         rval = qla2x00_mbx_reg_test(vha);
 922         if (rval) {
 923                 DEBUG(printk("scsi(%ld): Failed mailbox send register test\n",
 924                     vha->host_no));
 925                 qla_printk(KERN_WARNING, ha,
 926                     "Failed mailbox send register test\n");
 927         }
 928         else {
 929                 /* Flag a successful rval */
 930                 rval = QLA_SUCCESS;
 931         }
 932         spin_lock_irqsave(&ha->hardware_lock, flags);
 933
 934 chip_diag_failed:
 935         if (rval)
 936                 DEBUG2_3(printk("scsi(%ld): Chip diagnostics **** FAILED "
 937                     "****\n", vha->host_no));
 938
 939         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 940
 941         return (rval);
 942 }
 943
 944 /**
 945  * qla24xx_chip_diag() - Test ISP24xx for proper operation.
 946  * @ha: HA context
 947  *
 948  * Returns 0 on success.
 949  */
 950 int
 951 qla24xx_chip_diag(scsi_qla_host_t *vha)
 952 {
 953         int rval;
 954         struct qla_hw_data *ha = vha->hw;
 955         struct req_que *req = ha->req_q_map[0];
 956
 957         ha->fw_transfer_size = REQUEST_ENTRY_SIZE * req->length;
 958
 959         rval = qla2x00_mbx_reg_test(vha);
 960         if (rval) {
 961                 DEBUG(printk("scsi(%ld): Failed mailbox send register test\n",
 962                     vha->host_no));
 963                 qla_printk(KERN_WARNING, ha,
 964                     "Failed mailbox send register test\n");
 965         } else {
 966                 /* Flag a successful rval */
 967                 rval = QLA_SUCCESS;
 968         }
 969
 970         return rval;
 971 }
 972
 973 void
 974 qla2x00_alloc_fw_dump(scsi_qla_host_t *vha)
 975 {
 976         int rval;
 977         uint32_t dump_size, fixed_size, mem_size, req_q_size, rsp_q_size,
 978             eft_size, fce_size, mq_size;
 979         dma_addr_t tc_dma;
 980         void *tc;
 981         struct qla_hw_data *ha = vha->hw;
 982         struct req_que *req = ha->req_q_map[0];
 983         struct rsp_que *rsp = ha->rsp_q_map[0];
 984
 985         if (ha->fw_dump) {
 986                 qla_printk(KERN_WARNING, ha,
 987                     "Firmware dump previously allocated.\n");
 988                 return;
 989         }
 990
 991         ha->fw_dumped = 0;
 992         fixed_size = mem_size = eft_size = fce_size = mq_size = 0;
 993         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
 994                 fixed_size = sizeof(struct qla2100_fw_dump);
 995         } else if (IS_QLA23XX(ha)) {
 996                 fixed_size = offsetof(struct qla2300_fw_dump, data_ram);
 997                 mem_size = (ha->fw_memory_size - 0x11000 + 1) *
 998                     sizeof(uint16_t);
 999         } else if (IS_FWI2_CAPABLE(ha)) {
1000                 if (IS_QLA81XX(ha))
1001                         fixed_size = offsetof(struct qla81xx_fw_dump, ext_mem);
1002                 else if (IS_QLA25XX(ha))
1003                         fixed_size = offsetof(struct qla25xx_fw_dump, ext_mem);
1004                 else
1005                         fixed_size = offsetof(struct qla24xx_fw_dump, ext_mem);
1006                 mem_size = (ha->fw_memory_size - 0x100000 + 1) *
1007                     sizeof(uint32_t);
1008                 if (ha->mqenable)
1009                         mq_size = sizeof(struct qla2xxx_mq_chain);
1010                 /* Allocate memory for Fibre Channel Event Buffer. */
1011                 if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha))
1012                         goto try_eft;
1013
1014                 tc = dma_alloc_coherent(&ha->pdev->dev, FCE_SIZE, &tc_dma,
1015                     GFP_KERNEL);
1016                 if (!tc) {
1017                         qla_printk(KERN_WARNING, ha, "Unable to allocate "
1018                             "(%d KB) for FCE.\n", FCE_SIZE / 1024);
1019                         goto try_eft;
1020                 }
1021
1022                 memset(tc, 0, FCE_SIZE);
1023                 rval = qla2x00_enable_fce_trace(vha, tc_dma, FCE_NUM_BUFFERS,
1024                     ha->fce_mb, &ha->fce_bufs);
1025                 if (rval) {
1026                         qla_printk(KERN_WARNING, ha, "Unable to initialize "
1027                             "FCE (%d).\n", rval);
1028                         dma_free_coherent(&ha->pdev->dev, FCE_SIZE, tc,
1029                             tc_dma);
1030                         ha->flags.fce_enabled = 0;
1031                         goto try_eft;
1032                 }
1033
1034                 qla_printk(KERN_INFO, ha, "Allocated (%d KB) for FCE...\n",
1035                     FCE_SIZE / 1024);
1036
1037                 fce_size = sizeof(struct qla2xxx_fce_chain) + FCE_SIZE;
1038                 ha->flags.fce_enabled = 1;
1039                 ha->fce_dma = tc_dma;
1040                 ha->fce = tc;
1041 try_eft:
1042                 /* Allocate memory for Extended Trace Buffer. */
1043                 tc = dma_alloc_coherent(&ha->pdev->dev, EFT_SIZE, &tc_dma,
1044                     GFP_KERNEL);
1045                 if (!tc) {
1046                         qla_printk(KERN_WARNING, ha, "Unable to allocate "
1047                             "(%d KB) for EFT.\n", EFT_SIZE / 1024);
1048                         goto cont_alloc;
1049                 }
1050
1051                 memset(tc, 0, EFT_SIZE);
1052                 rval = qla2x00_enable_eft_trace(vha, tc_dma, EFT_NUM_BUFFERS);
1053                 if (rval) {
1054                         qla_printk(KERN_WARNING, ha, "Unable to initialize "
1055                             "EFT (%d).\n", rval);
1056                         dma_free_coherent(&ha->pdev->dev, EFT_SIZE, tc,
1057                             tc_dma);
1058                         goto cont_alloc;
1059                 }
1060
1061                 qla_printk(KERN_INFO, ha, "Allocated (%d KB) for EFT...\n",
1062                     EFT_SIZE / 1024);
1063
1064                 eft_size = EFT_SIZE;
1065                 ha->eft_dma = tc_dma;
1066                 ha->eft = tc;
1067         }
1068 cont_alloc:
1069         req_q_size = req->length * sizeof(request_t);
1070         rsp_q_size = rsp->length * sizeof(response_t);
1071
1072         dump_size = offsetof(struct qla2xxx_fw_dump, isp);
1073         dump_size += fixed_size + mem_size + req_q_size + rsp_q_size + eft_size;
1074         ha->chain_offset = dump_size;
1075         dump_size += mq_size + fce_size;
1076
1077         ha->fw_dump = vmalloc(dump_size);
1078         if (!ha->fw_dump) {
1079                 qla_printk(KERN_WARNING, ha, "Unable to allocate (%d KB) for "
1080                     "firmware dump!!!\n", dump_size / 1024);
1081
1082                 if (ha->eft) {
1083                         dma_free_coherent(&ha->pdev->dev, eft_size, ha->eft,
1084                             ha->eft_dma);
1085                         ha->eft = NULL;
1086                         ha->eft_dma = 0;
1087                 }
1088                 return;
1089         }
1090         qla_printk(KERN_INFO, ha, "Allocated (%d KB) for firmware dump...\n",
1091             dump_size / 1024);
1092
1093         ha->fw_dump_len = dump_size;
1094         ha->fw_dump->signature[0] = 'Q';
1095         ha->fw_dump->signature[1] = 'L';
1096         ha->fw_dump->signature[2] = 'G';
1097         ha->fw_dump->signature[3] = 'C';
1098         ha->fw_dump->version = __constant_htonl(1);
1099
1100         ha->fw_dump->fixed_size = htonl(fixed_size);
1101         ha->fw_dump->mem_size = htonl(mem_size);
1102         ha->fw_dump->req_q_size = htonl(req_q_size);
1103         ha->fw_dump->rsp_q_size = htonl(rsp_q_size);
1104
1105         ha->fw_dump->eft_size = htonl(eft_size);
1106         ha->fw_dump->eft_addr_l = htonl(LSD(ha->eft_dma));
1107         ha->fw_dump->eft_addr_h = htonl(MSD(ha->eft_dma));
1108
1109         ha->fw_dump->header_size =
1110             htonl(offsetof(struct qla2xxx_fw_dump, isp));
1111 }
1112
1113 static int
1114 qla81xx_mpi_sync(scsi_qla_host_t *vha)
1115 {
1116 #define MPS_MASK        0xe0
1117         int rval;
1118         uint16_t dc;
1119         uint32_t dw;
1120         struct qla_hw_data *ha = vha->hw;
1121
1122         if (!IS_QLA81XX(vha->hw))
1123                 return QLA_SUCCESS;
1124
1125         rval = qla2x00_write_ram_word(vha, 0x7c00, 1);
1126         if (rval != QLA_SUCCESS) {
1127                 DEBUG2(qla_printk(KERN_WARNING, ha,
1128                     "Sync-MPI: Unable to acquire semaphore.\n"));
1129                 goto done;
1130         }
1131
1132         pci_read_config_word(vha->hw->pdev, 0x54, &dc);
1133         rval = qla2x00_read_ram_word(vha, 0x7a15, &dw);
1134         if (rval != QLA_SUCCESS) {
1135                 DEBUG2(qla_printk(KERN_WARNING, ha,
1136                     "Sync-MPI: Unable to read sync.\n"));
1137                 goto done_release;
1138         }
1139
1140         dc &= MPS_MASK;
1141         if (dc == (dw & MPS_MASK))
1142                 goto done_release;
1143
1144         dw &= ~MPS_MASK;
1145         dw |= dc;
1146         rval = qla2x00_write_ram_word(vha, 0x7a15, dw);
1147         if (rval != QLA_SUCCESS) {
1148                 DEBUG2(qla_printk(KERN_WARNING, ha,
1149                     "Sync-MPI: Unable to gain sync.\n"));
1150         }
1151
1152 done_release:
1153         rval = qla2x00_write_ram_word(vha, 0x7c00, 0);
1154         if (rval != QLA_SUCCESS) {
1155                 DEBUG2(qla_printk(KERN_WARNING, ha,
1156                     "Sync-MPI: Unable to release semaphore.\n"));
1157         }
1158
1159 done:
1160         return rval;
1161 }
1162
1163 /**
1164  * qla2x00_setup_chip() - Load and start RISC firmware.
1165  * @ha: HA context
1166  *
1167  * Returns 0 on success.
1168  */
1169 static int
1170 qla2x00_setup_chip(scsi_qla_host_t *vha)
1171 {
1172         int rval;
1173         uint32_t srisc_address = 0;
1174         struct qla_hw_data *ha = vha->hw;
1175         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1176         unsigned long flags;
1177         uint16_t fw_major_version;
1178
1179         if (!IS_FWI2_CAPABLE(ha) && !IS_QLA2100(ha) && !IS_QLA2200(ha)) {
1180                 /* Disable SRAM, Instruction RAM and GP RAM parity.  */
1181                 spin_lock_irqsave(&ha->hardware_lock, flags);
1182                 WRT_REG_WORD(&reg->hccr, (HCCR_ENABLE_PARITY + 0x0));
1183                 RD_REG_WORD(&reg->hccr);
1184                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1185         }
1186
1187         qla81xx_mpi_sync(vha);
1188
1189         /* Load firmware sequences */
1190         rval = ha->isp_ops->load_risc(vha, &srisc_address);
1191         if (rval == QLA_SUCCESS) {
1192                 DEBUG(printk("scsi(%ld): Verifying Checksum of loaded RISC "
1193                     "code.\n", vha->host_no));
1194
1195                 rval = qla2x00_verify_checksum(vha, srisc_address);
1196                 if (rval == QLA_SUCCESS) {
1197                         /* Start firmware execution. */
1198                         DEBUG(printk("scsi(%ld): Checksum OK, start "
1199                             "firmware.\n", vha->host_no));
1200
1201                         rval = qla2x00_execute_fw(vha, srisc_address);
1202                         /* Retrieve firmware information. */
1203                         if (rval == QLA_SUCCESS) {
1204                                 fw_major_version = ha->fw_major_version;
1205                                 rval = qla2x00_get_fw_version(vha,
1206                                     &ha->fw_major_version,
1207                                     &ha->fw_minor_version,
1208                                     &ha->fw_subminor_version,
1209                                     &ha->fw_attributes, &ha->fw_memory_size,
1210                                     ha->mpi_version, &ha->mpi_capabilities,
1211                                     ha->phy_version);
1212                                 if (rval != QLA_SUCCESS)
1213                                         goto failed;
1214                                 ha->flags.npiv_supported = 0;
1215                                 if (IS_QLA2XXX_MIDTYPE(ha) &&
1216                                          (ha->fw_attributes & BIT_2)) {
1217                                         ha->flags.npiv_supported = 1;
1218                                         if ((!ha->max_npiv_vports) ||
1219                                             ((ha->max_npiv_vports + 1) %
1220                                             MIN_MULTI_ID_FABRIC))
1221                                                 ha->max_npiv_vports =
1222                                                     MIN_MULTI_ID_FABRIC - 1;
1223                                 }
1224                                 qla2x00_get_resource_cnts(vha, NULL,
1225                                     &ha->fw_xcb_count, NULL, NULL,
1226                                     &ha->max_npiv_vports, NULL);
1227
1228                                 if (!fw_major_version && ql2xallocfwdump)
1229                                         qla2x00_alloc_fw_dump(vha);
1230                         }
1231                 } else {
1232                         DEBUG2(printk(KERN_INFO
1233                             "scsi(%ld): ISP Firmware failed checksum.\n",
1234                             vha->host_no));
1235                 }
1236         }
1237
1238         if (!IS_FWI2_CAPABLE(ha) && !IS_QLA2100(ha) && !IS_QLA2200(ha)) {
1239                 /* Enable proper parity. */
1240                 spin_lock_irqsave(&ha->hardware_lock, flags);
1241                 if (IS_QLA2300(ha))
1242                         /* SRAM parity */
1243                         WRT_REG_WORD(&reg->hccr, HCCR_ENABLE_PARITY + 0x1);
1244                 else
1245                         /* SRAM, Instruction RAM and GP RAM parity */
1246                         WRT_REG_WORD(&reg->hccr, HCCR_ENABLE_PARITY + 0x7);
1247                 RD_REG_WORD(&reg->hccr);
1248                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1249         }
1250
1251         if (rval == QLA_SUCCESS && IS_FAC_REQUIRED(ha)) {
1252                 uint32_t size;
1253
1254                 rval = qla81xx_fac_get_sector_size(vha, &size);
1255                 if (rval == QLA_SUCCESS) {
1256                         ha->flags.fac_supported = 1;
1257                         ha->fdt_block_size = size << 2;
1258                 } else {
1259                         qla_printk(KERN_ERR, ha,
1260                             "Unsupported FAC firmware (%d.%02d.%02d).\n",
1261                             ha->fw_major_version, ha->fw_minor_version,
1262                             ha->fw_subminor_version);
1263                 }
1264         }
1265 failed:
1266         if (rval) {
1267                 DEBUG2_3(printk("scsi(%ld): Setup chip **** FAILED ****.\n",
1268                     vha->host_no));
1269         }
1270
1271         return (rval);
1272 }
1273
1274 /**
1275  * qla2x00_init_response_q_entries() - Initializes response queue entries.
1276  * @ha: HA context
1277  *
1278  * Beginning of request ring has initialization control block already built
1279  * by nvram config routine.
1280  *
1281  * Returns 0 on success.
1282  */
1283 void
1284 qla2x00_init_response_q_entries(struct rsp_que *rsp)
1285 {
1286         uint16_t cnt;
1287         response_t *pkt;
1288
1289         rsp->ring_ptr = rsp->ring;
1290         rsp->ring_index    = 0;
1291         rsp->status_srb = NULL;
1292         pkt = rsp->ring_ptr;
1293         for (cnt = 0; cnt < rsp->length; cnt++) {
1294                 pkt->signature = RESPONSE_PROCESSED;
1295                 pkt++;
1296         }
1297 }
1298
1299 /**
1300  * qla2x00_update_fw_options() - Read and process firmware options.
1301  * @ha: HA context
1302  *
1303  * Returns 0 on success.
1304  */
1305 void
1306 qla2x00_update_fw_options(scsi_qla_host_t *vha)
1307 {
1308         uint16_t swing, emphasis, tx_sens, rx_sens;
1309         struct qla_hw_data *ha = vha->hw;
1310
1311         memset(ha->fw_options, 0, sizeof(ha->fw_options));
1312         qla2x00_get_fw_options(vha, ha->fw_options);
1313
1314         if (IS_QLA2100(ha) || IS_QLA2200(ha))
1315                 return;
1316
1317         /* Serial Link options. */
1318         DEBUG3(printk("scsi(%ld): Serial link options:\n",
1319             vha->host_no));
1320         DEBUG3(qla2x00_dump_buffer((uint8_t *)&ha->fw_seriallink_options,
1321             sizeof(ha->fw_seriallink_options)));
1322
1323         ha->fw_options[1] &= ~FO1_SET_EMPHASIS_SWING;
1324         if (ha->fw_seriallink_options[3] & BIT_2) {
1325                 ha->fw_options[1] |= FO1_SET_EMPHASIS_SWING;
1326
1327                 /*  1G settings */
1328                 swing = ha->fw_seriallink_options[2] & (BIT_2 | BIT_1 | BIT_0);
1329                 emphasis = (ha->fw_seriallink_options[2] &
1330                     (BIT_4 | BIT_3)) >> 3;
1331                 tx_sens = ha->fw_seriallink_options[0] &
1332                     (BIT_3 | BIT_2 | BIT_1 | BIT_0);
1333                 rx_sens = (ha->fw_seriallink_options[0] &
1334                     (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
1335                 ha->fw_options[10] = (emphasis << 14) | (swing << 8);
1336                 if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
1337                         if (rx_sens == 0x0)
1338                                 rx_sens = 0x3;
1339                         ha->fw_options[10] |= (tx_sens << 4) | rx_sens;
1340                 } else if (IS_QLA2322(ha) || IS_QLA6322(ha))
1341                         ha->fw_options[10] |= BIT_5 |
1342                             ((rx_sens & (BIT_1 | BIT_0)) << 2) |
1343                             (tx_sens & (BIT_1 | BIT_0));
1344
1345                 /*  2G settings */
1346                 swing = (ha->fw_seriallink_options[2] &
1347                     (BIT_7 | BIT_6 | BIT_5)) >> 5;
1348                 emphasis = ha->fw_seriallink_options[3] & (BIT_1 | BIT_0);
1349                 tx_sens = ha->fw_seriallink_options[1] &
1350                     (BIT_3 | BIT_2 | BIT_1 | BIT_0);
1351                 rx_sens = (ha->fw_seriallink_options[1] &
1352                     (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
1353                 ha->fw_options[11] = (emphasis << 14) | (swing << 8);
1354                 if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
1355                         if (rx_sens == 0x0)
1356                                 rx_sens = 0x3;
1357                         ha->fw_options[11] |= (tx_sens << 4) | rx_sens;
1358                 } else if (IS_QLA2322(ha) || IS_QLA6322(ha))
1359                         ha->fw_options[11] |= BIT_5 |
1360                             ((rx_sens & (BIT_1 | BIT_0)) << 2) |
1361                             (tx_sens & (BIT_1 | BIT_0));
1362         }
1363
1364         /* FCP2 options. */
1365         /*  Return command IOCBs without waiting for an ABTS to complete. */
1366         ha->fw_options[3] |= BIT_13;
1367
1368         /* LED scheme. */
1369         if (ha->flags.enable_led_scheme)
1370                 ha->fw_options[2] |= BIT_12;
1371
1372         /* Detect ISP6312. */
1373         if (IS_QLA6312(ha))
1374                 ha->fw_options[2] |= BIT_13;
1375
1376         /* Update firmware options. */
1377         qla2x00_set_fw_options(vha, ha->fw_options);
1378 }
1379
1380 void
1381 qla24xx_update_fw_options(scsi_qla_host_t *vha)
1382 {
1383         int rval;
1384         struct qla_hw_data *ha = vha->hw;
1385
1386         /* Update Serial Link options. */
1387         if ((le16_to_cpu(ha->fw_seriallink_options24[0]) & BIT_0) == 0)
1388                 return;
1389
1390         rval = qla2x00_set_serdes_params(vha,
1391             le16_to_cpu(ha->fw_seriallink_options24[1]),
1392             le16_to_cpu(ha->fw_seriallink_options24[2]),
1393             le16_to_cpu(ha->fw_seriallink_options24[3]));
1394         if (rval != QLA_SUCCESS) {
1395                 qla_printk(KERN_WARNING, ha,
1396                     "Unable to update Serial Link options (%x).\n", rval);
1397         }
1398 }
1399
1400 void
1401 qla2x00_config_rings(struct scsi_qla_host *vha)
1402 {
1403         struct qla_hw_data *ha = vha->hw;
1404         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1405         struct req_que *req = ha->req_q_map[0];
1406         struct rsp_que *rsp = ha->rsp_q_map[0];
1407
1408         /* Setup ring parameters in initialization control block. */
1409         ha->init_cb->request_q_outpointer = __constant_cpu_to_le16(0);
1410         ha->init_cb->response_q_inpointer = __constant_cpu_to_le16(0);
1411         ha->init_cb->request_q_length = cpu_to_le16(req->length);
1412         ha->init_cb->response_q_length = cpu_to_le16(rsp->length);
1413         ha->init_cb->request_q_address[0] = cpu_to_le32(LSD(req->dma));
1414         ha->init_cb->request_q_address[1] = cpu_to_le32(MSD(req->dma));
1415         ha->init_cb->response_q_address[0] = cpu_to_le32(LSD(rsp->dma));
1416         ha->init_cb->response_q_address[1] = cpu_to_le32(MSD(rsp->dma));
1417
1418         WRT_REG_WORD(ISP_REQ_Q_IN(ha, reg), 0);
1419         WRT_REG_WORD(ISP_REQ_Q_OUT(ha, reg), 0);
1420         WRT_REG_WORD(ISP_RSP_Q_IN(ha, reg), 0);
1421         WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), 0);
1422         RD_REG_WORD(ISP_RSP_Q_OUT(ha, reg));            /* PCI Posting. */
1423 }
1424
1425 void
1426 qla24xx_config_rings(struct scsi_qla_host *vha)
1427 {
1428         struct qla_hw_data *ha = vha->hw;
1429         device_reg_t __iomem *reg = ISP_QUE_REG(ha, 0);
1430         struct device_reg_2xxx __iomem *ioreg = &ha->iobase->isp;
1431         struct qla_msix_entry *msix;
1432         struct init_cb_24xx *icb;
1433         uint16_t rid = 0;
1434         struct req_que *req = ha->req_q_map[0];
1435         struct rsp_que *rsp = ha->rsp_q_map[0];
1436
1437 /* Setup ring parameters in initialization control block. */
1438         icb = (struct init_cb_24xx *)ha->init_cb;
1439         icb->request_q_outpointer = __constant_cpu_to_le16(0);
1440         icb->response_q_inpointer = __constant_cpu_to_le16(0);
1441         icb->request_q_length = cpu_to_le16(req->length);
1442         icb->response_q_length = cpu_to_le16(rsp->length);
1443         icb->request_q_address[0] = cpu_to_le32(LSD(req->dma));
1444         icb->request_q_address[1] = cpu_to_le32(MSD(req->dma));
1445         icb->response_q_address[0] = cpu_to_le32(LSD(rsp->dma));
1446         icb->response_q_address[1] = cpu_to_le32(MSD(rsp->dma));
1447
1448         if (ha->mqenable) {
1449                 icb->qos = __constant_cpu_to_le16(QLA_DEFAULT_QUE_QOS);
1450                 icb->rid = __constant_cpu_to_le16(rid);
1451                 if (ha->flags.msix_enabled) {
1452                         msix = &ha->msix_entries[1];
1453                         DEBUG2_17(printk(KERN_INFO
1454                         "Registering vector 0x%x for base que\n", msix->entry));
1455                         icb->msix = cpu_to_le16(msix->entry);
1456                 }
1457                 /* Use alternate PCI bus number */
1458                 if (MSB(rid))
1459                         icb->firmware_options_2 |=
1460                                 __constant_cpu_to_le32(BIT_19);
1461                 /* Use alternate PCI devfn */
1462                 if (LSB(rid))
1463                         icb->firmware_options_2 |=
1464                                 __constant_cpu_to_le32(BIT_18);
1465
1466                 /* Use Disable MSIX Handshake mode for capable adapters */
1467                 if (IS_MSIX_NACK_CAPABLE(ha)) {
1468                         icb->firmware_options_2 &=
1469                                 __constant_cpu_to_le32(~BIT_22);
1470                         ha->flags.disable_msix_handshake = 1;
1471                         qla_printk(KERN_INFO, ha,
1472                                 "MSIX Handshake Disable Mode turned on\n");
1473                 } else {
1474                         icb->firmware_options_2 |=
1475                                 __constant_cpu_to_le32(BIT_22);
1476                 }
1477                 icb->firmware_options_2 |= __constant_cpu_to_le32(BIT_23);
1478
1479                 WRT_REG_DWORD(&reg->isp25mq.req_q_in, 0);
1480                 WRT_REG_DWORD(&reg->isp25mq.req_q_out, 0);
1481                 WRT_REG_DWORD(&reg->isp25mq.rsp_q_in, 0);
1482                 WRT_REG_DWORD(&reg->isp25mq.rsp_q_out, 0);
1483         } else {
1484                 WRT_REG_DWORD(&reg->isp24.req_q_in, 0);
1485                 WRT_REG_DWORD(&reg->isp24.req_q_out, 0);
1486                 WRT_REG_DWORD(&reg->isp24.rsp_q_in, 0);
1487                 WRT_REG_DWORD(&reg->isp24.rsp_q_out, 0);
1488         }
1489         /* PCI posting */
1490         RD_REG_DWORD(&ioreg->hccr);
1491 }
1492
1493 /**
1494  * qla2x00_init_rings() - Initializes firmware.
1495  * @ha: HA context
1496  *
1497  * Beginning of request ring has initialization control block already built
1498  * by nvram config routine.
1499  *
1500  * Returns 0 on success.
1501  */
1502 static int
1503 qla2x00_init_rings(scsi_qla_host_t *vha)
1504 {
1505         int     rval;
1506         unsigned long flags = 0;
1507         int cnt, que;
1508         struct qla_hw_data *ha = vha->hw;
1509         struct req_que *req;
1510         struct rsp_que *rsp;
1511         struct scsi_qla_host *vp;
1512         struct mid_init_cb_24xx *mid_init_cb =
1513             (struct mid_init_cb_24xx *) ha->init_cb;
1514
1515         spin_lock_irqsave(&ha->hardware_lock, flags);
1516
1517         /* Clear outstanding commands array. */
1518         for (que = 0; que < ha->max_req_queues; que++) {
1519                 req = ha->req_q_map[que];
1520                 if (!req)
1521                         continue;
1522                 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++)
1523                         req->outstanding_cmds[cnt] = NULL;
1524
1525                 req->current_outstanding_cmd = 1;
1526
1527                 /* Initialize firmware. */
1528                 req->ring_ptr  = req->ring;
1529                 req->ring_index    = 0;
1530                 req->cnt      = req->length;
1531         }
1532
1533         for (que = 0; que < ha->max_rsp_queues; que++) {
1534                 rsp = ha->rsp_q_map[que];
1535                 if (!rsp)
1536                         continue;
1537                 /* Initialize response queue entries */
1538                 qla2x00_init_response_q_entries(rsp);
1539         }
1540
1541         /* Clear RSCN queue. */
1542         list_for_each_entry(vp, &ha->vp_list, list) {
1543                 vp->rscn_in_ptr = 0;
1544                 vp->rscn_out_ptr = 0;
1545         }
1546         ha->isp_ops->config_rings(vha);
1547
1548         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1549
1550         /* Update any ISP specific firmware options before initialization. */
1551         ha->isp_ops->update_fw_options(vha);
1552
1553         DEBUG(printk("scsi(%ld): Issue init firmware.\n", vha->host_no));
1554
1555         if (ha->flags.npiv_supported) {
1556                 if (ha->operating_mode == LOOP)
1557                         ha->max_npiv_vports = MIN_MULTI_ID_FABRIC - 1;
1558                 mid_init_cb->count = cpu_to_le16(ha->max_npiv_vports);
1559         }
1560
1561         if (IS_FWI2_CAPABLE(ha)) {
1562                 mid_init_cb->options = __constant_cpu_to_le16(BIT_1);
1563                 mid_init_cb->init_cb.execution_throttle =
1564                     cpu_to_le16(ha->fw_xcb_count);
1565         }
1566
1567         rval = qla2x00_init_firmware(vha, ha->init_cb_size);
1568         if (rval) {
1569                 DEBUG2_3(printk("scsi(%ld): Init firmware **** FAILED ****.\n",
1570                     vha->host_no));
1571         } else {
1572                 DEBUG3(printk("scsi(%ld): Init firmware -- success.\n",
1573                     vha->host_no));
1574         }
1575
1576         return (rval);
1577 }
1578
1579 /**
1580  * qla2x00_fw_ready() - Waits for firmware ready.
1581  * @ha: HA context
1582  *
1583  * Returns 0 on success.
1584  */
1585 static int
1586 qla2x00_fw_ready(scsi_qla_host_t *vha)
1587 {
1588         int             rval;
1589         unsigned long   wtime, mtime, cs84xx_time;
1590         uint16_t        min_wait;       /* Minimum wait time if loop is down */
1591         uint16_t        wait_time;      /* Wait time if loop is coming ready */
1592         uint16_t        state[5];
1593         struct qla_hw_data *ha = vha->hw;
1594
1595         rval = QLA_SUCCESS;
1596
1597         /* 20 seconds for loop down. */
1598         min_wait = 20;
1599
1600         /*
1601          * Firmware should take at most one RATOV to login, plus 5 seconds for
1602          * our own processing.
1603          */
1604         if ((wait_time = (ha->retry_count*ha->login_timeout) + 5) < min_wait) {
1605                 wait_time = min_wait;
1606         }
1607
1608         /* Min wait time if loop down */
1609         mtime = jiffies + (min_wait * HZ);
1610
1611         /* wait time before firmware ready */
1612         wtime = jiffies + (wait_time * HZ);
1613
1614         /* Wait for ISP to finish LIP */
1615         if (!vha->flags.init_done)
1616                 qla_printk(KERN_INFO, ha, "Waiting for LIP to complete...\n");
1617
1618         DEBUG3(printk("scsi(%ld): Waiting for LIP to complete...\n",
1619             vha->host_no));
1620
1621         do {
1622                 rval = qla2x00_get_firmware_state(vha, state);
1623                 if (rval == QLA_SUCCESS) {
1624                         if (state[0] < FSTATE_LOSS_OF_SYNC) {
1625                                 vha->device_flags &= ~DFLG_NO_CABLE;
1626                         }
1627                         if (IS_QLA84XX(ha) && state[0] != FSTATE_READY) {
1628                                 DEBUG16(printk("scsi(%ld): fw_state=%x "
1629                                     "84xx=%x.\n", vha->host_no, state[0],
1630                                     state[2]));
1631                                 if ((state[2] & FSTATE_LOGGED_IN) &&
1632                                      (state[2] & FSTATE_WAITING_FOR_VERIFY)) {
1633                                         DEBUG16(printk("scsi(%ld): Sending "
1634                                             "verify iocb.\n", vha->host_no));
1635
1636                                         cs84xx_time = jiffies;
1637                                         rval = qla84xx_init_chip(vha);
1638                                         if (rval != QLA_SUCCESS)
1639                                                 break;
1640
1641                                         /* Add time taken to initialize. */
1642                                         cs84xx_time = jiffies - cs84xx_time;
1643                                         wtime += cs84xx_time;
1644                                         mtime += cs84xx_time;
1645                                         DEBUG16(printk("scsi(%ld): Increasing "
1646                                             "wait time by %ld. New time %ld\n",
1647                                             vha->host_no, cs84xx_time, wtime));
1648                                 }
1649                         } else if (state[0] == FSTATE_READY) {
1650                                 DEBUG(printk("scsi(%ld): F/W Ready - OK \n",
1651                                     vha->host_no));
1652
1653                                 qla2x00_get_retry_cnt(vha, &ha->retry_count,
1654                                     &ha->login_timeout, &ha->r_a_tov);
1655
1656                                 rval = QLA_SUCCESS;
1657                                 break;
1658                         }
1659
1660                         rval = QLA_FUNCTION_FAILED;
1661
1662                         if (atomic_read(&vha->loop_down_timer) &&
1663                             state[0] != FSTATE_READY) {
1664                                 /* Loop down. Timeout on min_wait for states
1665                                  * other than Wait for Login.
1666                                  */
1667                                 if (time_after_eq(jiffies, mtime)) {
1668                                         qla_printk(KERN_INFO, ha,
1669                                             "Cable is unplugged...\n");
1670
1671                                         vha->device_flags |= DFLG_NO_CABLE;
1672                                         break;
1673                                 }
1674                         }
1675                 } else {
1676                         /* Mailbox cmd failed. Timeout on min_wait. */
1677                         if (time_after_eq(jiffies, mtime))
1678                                 break;
1679                 }
1680
1681                 if (time_after_eq(jiffies, wtime))
1682                         break;
1683
1684                 /* Delay for a while */
1685                 msleep(500);
1686
1687                 DEBUG3(printk("scsi(%ld): fw_state=%x curr time=%lx.\n",
1688                     vha->host_no, state[0], jiffies));
1689         } while (1);
1690
1691         DEBUG(printk("scsi(%ld): fw_state=%x (%x, %x, %x, %x) curr time=%lx.\n",
1692             vha->host_no, state[0], state[1], state[2], state[3], state[4],
1693             jiffies));
1694
1695         if (rval) {
1696                 DEBUG2_3(printk("scsi(%ld): Firmware ready **** FAILED ****.\n",
1697                     vha->host_no));
1698         }
1699
1700         return (rval);
1701 }
1702
1703 /*
1704 *  qla2x00_configure_hba
1705 *      Setup adapter context.
1706 *
1707 * Input:
1708 *      ha = adapter state pointer.
1709 *
1710 * Returns:
1711 *      0 = success
1712 *
1713 * Context:
1714 *      Kernel context.
1715 */
1716 static int
1717 qla2x00_configure_hba(scsi_qla_host_t *vha)
1718 {
1719         int       rval;
1720         uint16_t      loop_id;
1721         uint16_t      topo;
1722         uint16_t      sw_cap;
1723         uint8_t       al_pa;
1724         uint8_t       area;
1725         uint8_t       domain;
1726         char            connect_type[22];
1727         struct qla_hw_data *ha = vha->hw;
1728
1729         /* Get host addresses. */
1730         rval = qla2x00_get_adapter_id(vha,
1731             &loop_id, &al_pa, &area, &domain, &topo, &sw_cap);
1732         if (rval != QLA_SUCCESS) {
1733                 if (LOOP_TRANSITION(vha) || atomic_read(&ha->loop_down_timer) ||
1734                     (rval == QLA_COMMAND_ERROR && loop_id == 0x7)) {
1735                         DEBUG2(printk("%s(%ld) Loop is in a transition state\n",
1736                             __func__, vha->host_no));
1737                 } else {
1738                         qla_printk(KERN_WARNING, ha,
1739                             "ERROR -- Unable to get host loop ID.\n");
1740                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1741                 }
1742                 return (rval);
1743         }
1744
1745         if (topo == 4) {
1746                 qla_printk(KERN_INFO, ha,
1747                         "Cannot get topology - retrying.\n");
1748                 return (QLA_FUNCTION_FAILED);
1749         }
1750
1751         vha->loop_id = loop_id;
1752
1753         /* initialize */
1754         ha->min_external_loopid = SNS_FIRST_LOOP_ID;
1755         ha->operating_mode = LOOP;
1756         ha->switch_cap = 0;
1757
1758         switch (topo) {
1759         case 0:
1760                 DEBUG3(printk("scsi(%ld): HBA in NL topology.\n",
1761                     vha->host_no));
1762                 ha->current_topology = ISP_CFG_NL;
1763                 strcpy(connect_type, "(Loop)");
1764                 break;
1765
1766         case 1:
1767                 DEBUG3(printk("scsi(%ld): HBA in FL topology.\n",
1768                     vha->host_no));
1769                 ha->switch_cap = sw_cap;
1770                 ha->current_topology = ISP_CFG_FL;
1771                 strcpy(connect_type, "(FL_Port)");
1772                 break;
1773
1774         case 2:
1775                 DEBUG3(printk("scsi(%ld): HBA in N P2P topology.\n",
1776                     vha->host_no));
1777                 ha->operating_mode = P2P;
1778                 ha->current_topology = ISP_CFG_N;
1779                 strcpy(connect_type, "(N_Port-to-N_Port)");
1780                 break;
1781
1782         case 3:
1783                 DEBUG3(printk("scsi(%ld): HBA in F P2P topology.\n",
1784                     vha->host_no));
1785                 ha->switch_cap = sw_cap;
1786                 ha->operating_mode = P2P;
1787                 ha->current_topology = ISP_CFG_F;
1788                 strcpy(connect_type, "(F_Port)");
1789                 break;
1790
1791         default:
1792                 DEBUG3(printk("scsi(%ld): HBA in unknown topology %x. "
1793                     "Using NL.\n",
1794                     vha->host_no, topo));
1795                 ha->current_topology = ISP_CFG_NL;
1796                 strcpy(connect_type, "(Loop)");
1797                 break;
1798         }
1799
1800         /* Save Host port and loop ID. */
1801         /* byte order - Big Endian */
1802         vha->d_id.b.domain = domain;
1803         vha->d_id.b.area = area;
1804         vha->d_id.b.al_pa = al_pa;
1805
1806         if (!vha->flags.init_done)
1807                 qla_printk(KERN_INFO, ha,
1808                     "Topology - %s, Host Loop address 0x%x\n",
1809                     connect_type, vha->loop_id);
1810
1811         if (rval) {
1812                 DEBUG2_3(printk("scsi(%ld): FAILED.\n", vha->host_no));
1813         } else {
1814                 DEBUG3(printk("scsi(%ld): exiting normally.\n", vha->host_no));
1815         }
1816
1817         return(rval);
1818 }
1819
1820 static inline void
1821 qla2x00_set_model_info(scsi_qla_host_t *vha, uint8_t *model, size_t len,
1822         char *def)
1823 {
1824         char *st, *en;
1825         uint16_t index;
1826         struct qla_hw_data *ha = vha->hw;
1827         int use_tbl = !IS_QLA24XX_TYPE(ha) && !IS_QLA25XX(ha) &&
1828             !IS_QLA81XX(ha);
1829
1830         if (memcmp(model, BINZERO, len) != 0) {
1831                 strncpy(ha->model_number, model, len);
1832                 st = en = ha->model_number;
1833                 en += len - 1;
1834                 while (en > st) {
1835                         if (*en != 0x20 && *en != 0x00)
1836                                 break;
1837                         *en-- = '\0';
1838                 }
1839
1840                 index = (ha->pdev->subsystem_device & 0xff);
1841                 if (use_tbl &&
1842                     ha->pdev->subsystem_vendor == PCI_VENDOR_ID_QLOGIC &&
1843                     index < QLA_MODEL_NAMES)
1844                         strncpy(ha->model_desc,
1845                             qla2x00_model_name[index * 2 + 1],
1846                             sizeof(ha->model_desc) - 1);
1847         } else {
1848                 index = (ha->pdev->subsystem_device & 0xff);
1849                 if (use_tbl &&
1850                     ha->pdev->subsystem_vendor == PCI_VENDOR_ID_QLOGIC &&
1851                     index < QLA_MODEL_NAMES) {
1852                         strcpy(ha->model_number,
1853                             qla2x00_model_name[index * 2]);
1854                         strncpy(ha->model_desc,
1855                             qla2x00_model_name[index * 2 + 1],
1856                             sizeof(ha->model_desc) - 1);
1857                 } else {
1858                         strcpy(ha->model_number, def);
1859                 }
1860         }
1861         if (IS_FWI2_CAPABLE(ha))
1862                 qla2xxx_get_vpd_field(vha, "\x82", ha->model_desc,
1863                     sizeof(ha->model_desc));
1864 }
1865
1866 /* On sparc systems, obtain port and node WWN from firmware
1867  * properties.
1868  */
1869 static void qla2xxx_nvram_wwn_from_ofw(scsi_qla_host_t *vha, nvram_t *nv)
1870 {
1871 #ifdef CONFIG_SPARC
1872         struct qla_hw_data *ha = vha->hw;
1873         struct pci_dev *pdev = ha->pdev;
1874         struct device_node *dp = pci_device_to_OF_node(pdev);
1875         const u8 *val;
1876         int len;
1877
1878         val = of_get_property(dp, "port-wwn", &len);
1879         if (val && len >= WWN_SIZE)
1880                 memcpy(nv->port_name, val, WWN_SIZE);
1881
1882         val = of_get_property(dp, "node-wwn", &len);
1883         if (val && len >= WWN_SIZE)
1884                 memcpy(nv->node_name, val, WWN_SIZE);
1885 #endif
1886 }
1887
1888 /*
1889 * NVRAM configuration for ISP 2xxx
1890 *
1891 * Input:
1892 *      ha                = adapter block pointer.
1893 *
1894 * Output:
1895 *      initialization control block in response_ring
1896 *      host adapters parameters in host adapter block
1897 *
1898 * Returns:
1899 *      0 = success.
1900 */
1901 int
1902 qla2x00_nvram_config(scsi_qla_host_t *vha)
1903 {
1904         int             rval;
1905         uint8_t         chksum = 0;
1906         uint16_t        cnt;
1907         uint8_t         *dptr1, *dptr2;
1908         struct qla_hw_data *ha = vha->hw;
1909         init_cb_t       *icb = ha->init_cb;
1910         nvram_t         *nv = ha->nvram;
1911         uint8_t         *ptr = ha->nvram;
1912         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1913
1914         rval = QLA_SUCCESS;
1915
1916         /* Determine NVRAM starting address. */
1917         ha->nvram_size = sizeof(nvram_t);
1918         ha->nvram_base = 0;
1919         if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA2300(ha))
1920                 if ((RD_REG_WORD(&reg->ctrl_status) >> 14) == 1)
1921                         ha->nvram_base = 0x80;
1922
1923         /* Get NVRAM data and calculate checksum. */
1924         ha->isp_ops->read_nvram(vha, ptr, ha->nvram_base, ha->nvram_size);
1925         for (cnt = 0, chksum = 0; cnt < ha->nvram_size; cnt++)
1926                 chksum += *ptr++;
1927
1928         DEBUG5(printk("scsi(%ld): Contents of NVRAM\n", vha->host_no));
1929         DEBUG5(qla2x00_dump_buffer((uint8_t *)nv, ha->nvram_size));
1930
1931         /* Bad NVRAM data, set defaults parameters. */
1932         if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' ||
1933             nv->id[2] != 'P' || nv->id[3] != ' ' || nv->nvram_version < 1) {
1934                 /* Reset NVRAM data. */
1935                 qla_printk(KERN_WARNING, ha, "Inconsistent NVRAM detected: "
1936                     "checksum=0x%x id=%c version=0x%x.\n", chksum, nv->id[0],
1937                     nv->nvram_version);
1938                 qla_printk(KERN_WARNING, ha, "Falling back to functioning (yet "
1939                     "invalid -- WWPN) defaults.\n");
1940
1941                 /*
1942                  * Set default initialization control block.
1943                  */
1944                 memset(nv, 0, ha->nvram_size);
1945                 nv->parameter_block_version = ICB_VERSION;
1946
1947                 if (IS_QLA23XX(ha)) {
1948                         nv->firmware_options[0] = BIT_2 | BIT_1;
1949                         nv->firmware_options[1] = BIT_7 | BIT_5;
1950                         nv->add_firmware_options[0] = BIT_5;
1951                         nv->add_firmware_options[1] = BIT_5 | BIT_4;
1952                         nv->frame_payload_size = __constant_cpu_to_le16(2048);
1953                         nv->special_options[1] = BIT_7;
1954                 } else if (IS_QLA2200(ha)) {
1955                         nv->firmware_options[0] = BIT_2 | BIT_1;
1956                         nv->firmware_options[1] = BIT_7 | BIT_5;
1957                         nv->add_firmware_options[0] = BIT_5;
1958                         nv->add_firmware_options[1] = BIT_5 | BIT_4;
1959                         nv->frame_payload_size = __constant_cpu_to_le16(1024);
1960                 } else if (IS_QLA2100(ha)) {
1961                         nv->firmware_options[0] = BIT_3 | BIT_1;
1962                         nv->firmware_options[1] = BIT_5;
1963                         nv->frame_payload_size = __constant_cpu_to_le16(1024);
1964                 }
1965
1966                 nv->max_iocb_allocation = __constant_cpu_to_le16(256);
1967                 nv->execution_throttle = __constant_cpu_to_le16(16);
1968                 nv->retry_count = 8;
1969                 nv->retry_delay = 1;
1970
1971                 nv->port_name[0] = 33;
1972                 nv->port_name[3] = 224;
1973                 nv->port_name[4] = 139;
1974
1975                 qla2xxx_nvram_wwn_from_ofw(vha, nv);
1976
1977                 nv->login_timeout = 4;
1978
1979                 /*
1980                  * Set default host adapter parameters
1981                  */
1982                 nv->host_p[1] = BIT_2;
1983                 nv->reset_delay = 5;
1984                 nv->port_down_retry_count = 8;
1985                 nv->max_luns_per_target = __constant_cpu_to_le16(8);
1986                 nv->link_down_timeout = 60;
1987
1988                 rval = 1;
1989         }
1990
1991 #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
1992         /*
1993          * The SN2 does not provide BIOS emulation which means you can't change
1994          * potentially bogus BIOS settings. Force the use of default settings
1995          * for link rate and frame size.  Hope that the rest of the settings
1996          * are valid.
1997          */
1998         if (ia64_platform_is("sn2")) {
1999                 nv->frame_payload_size = __constant_cpu_to_le16(2048);
2000                 if (IS_QLA23XX(ha))
2001                         nv->special_options[1] = BIT_7;
2002         }
2003 #endif
2004
2005         /* Reset Initialization control block */
2006         memset(icb, 0, ha->init_cb_size);
2007
2008         /*
2009          * Setup driver NVRAM options.
2010          */
2011         nv->firmware_options[0] |= (BIT_6 | BIT_1);
2012         nv->firmware_options[0] &= ~(BIT_5 | BIT_4);
2013         nv->firmware_options[1] |= (BIT_5 | BIT_0);
2014         nv->firmware_options[1] &= ~BIT_4;
2015
2016         if (IS_QLA23XX(ha)) {
2017                 nv->firmware_options[0] |= BIT_2;
2018                 nv->firmware_options[0] &= ~BIT_3;
2019                 nv->add_firmware_options[1] |= BIT_5 | BIT_4;
2020
2021                 if (IS_QLA2300(ha)) {
2022                         if (ha->fb_rev == FPM_2310) {
2023                                 strcpy(ha->model_number, "QLA2310");
2024                         } else {
2025                                 strcpy(ha->model_number, "QLA2300");
2026                         }
2027                 } else {
2028                         qla2x00_set_model_info(vha, nv->model_number,
2029                             sizeof(nv->model_number), "QLA23xx");
2030                 }
2031         } else if (IS_QLA2200(ha)) {
2032                 nv->firmware_options[0] |= BIT_2;
2033                 /*
2034                  * 'Point-to-point preferred, else loop' is not a safe
2035                  * connection mode setting.
2036                  */
2037                 if ((nv->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) ==
2038                     (BIT_5 | BIT_4)) {
2039                         /* Force 'loop preferred, else point-to-point'. */
2040                         nv->add_firmware_options[0] &= ~(BIT_6 | BIT_5 | BIT_4);
2041                         nv->add_firmware_options[0] |= BIT_5;
2042                 }
2043                 strcpy(ha->model_number, "QLA22xx");
2044         } else /*if (IS_QLA2100(ha))*/ {
2045                 strcpy(ha->model_number, "QLA2100");
2046         }
2047
2048         /*
2049          * Copy over NVRAM RISC parameter block to initialization control block.
2050          */
2051         dptr1 = (uint8_t *)icb;
2052         dptr2 = (uint8_t *)&nv->parameter_block_version;
2053         cnt = (uint8_t *)&icb->request_q_outpointer - (uint8_t *)&icb->version;
2054         while (cnt--)
2055                 *dptr1++ = *dptr2++;
2056
2057         /* Copy 2nd half. */
2058         dptr1 = (uint8_t *)icb->add_firmware_options;
2059         cnt = (uint8_t *)icb->reserved_3 - (uint8_t *)icb->add_firmware_options;
2060         while (cnt--)
2061                 *dptr1++ = *dptr2++;
2062
2063         /* Use alternate WWN? */
2064         if (nv->host_p[1] & BIT_7) {
2065                 memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
2066                 memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
2067         }
2068
2069         /* Prepare nodename */
2070         if ((icb->firmware_options[1] & BIT_6) == 0) {
2071                 /*
2072                  * Firmware will apply the following mask if the nodename was
2073                  * not provided.
2074                  */
2075                 memcpy(icb->node_name, icb->port_name, WWN_SIZE);
2076                 icb->node_name[0] &= 0xF0;
2077         }
2078
2079         /*
2080          * Set host adapter parameters.
2081          */
2082         if (nv->host_p[0] & BIT_7)
2083                 ql2xextended_error_logging = 1;
2084         ha->flags.disable_risc_code_load = ((nv->host_p[0] & BIT_4) ? 1 : 0);
2085         /* Always load RISC code on non ISP2[12]00 chips. */
2086         if (!IS_QLA2100(ha) && !IS_QLA2200(ha))
2087                 ha->flags.disable_risc_code_load = 0;
2088         ha->flags.enable_lip_reset = ((nv->host_p[1] & BIT_1) ? 1 : 0);
2089         ha->flags.enable_lip_full_login = ((nv->host_p[1] & BIT_2) ? 1 : 0);
2090         ha->flags.enable_target_reset = ((nv->host_p[1] & BIT_3) ? 1 : 0);
2091         ha->flags.enable_led_scheme = (nv->special_options[1] & BIT_4) ? 1 : 0;
2092         ha->flags.disable_serdes = 0;
2093
2094         ha->operating_mode =
2095             (icb->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) >> 4;
2096
2097         memcpy(ha->fw_seriallink_options, nv->seriallink_options,
2098             sizeof(ha->fw_seriallink_options));
2099
2100         /* save HBA serial number */
2101         ha->serial0 = icb->port_name[5];
2102         ha->serial1 = icb->port_name[6];
2103         ha->serial2 = icb->port_name[7];
2104         memcpy(vha->node_name, icb->node_name, WWN_SIZE);
2105         memcpy(vha->port_name, icb->port_name, WWN_SIZE);
2106
2107         icb->execution_throttle = __constant_cpu_to_le16(0xFFFF);
2108
2109         ha->retry_count = nv->retry_count;
2110
2111         /* Set minimum login_timeout to 4 seconds. */
2112         if (nv->login_timeout < ql2xlogintimeout)
2113                 nv->login_timeout = ql2xlogintimeout;
2114         if (nv->login_timeout < 4)
2115                 nv->login_timeout = 4;
2116         ha->login_timeout = nv->login_timeout;
2117         icb->login_timeout = nv->login_timeout;
2118
2119         /* Set minimum RATOV to 100 tenths of a second. */
2120         ha->r_a_tov = 100;
2121
2122         ha->loop_reset_delay = nv->reset_delay;
2123
2124         /* Link Down Timeout = 0:
2125          *
2126          *      When Port Down timer expires we will start returning
2127          *      I/O's to OS with "DID_NO_CONNECT".
2128          *
2129          * Link Down Timeout != 0:
2130          *
2131          *       The driver waits for the link to come up after link down
2132          *       before returning I/Os to OS with "DID_NO_CONNECT".
2133          */
2134         if (nv->link_down_timeout == 0) {
2135                 ha->loop_down_abort_time =
2136                     (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
2137         } else {
2138                 ha->link_down_timeout =  nv->link_down_timeout;
2139                 ha->loop_down_abort_time =
2140                     (LOOP_DOWN_TIME - ha->link_down_timeout);
2141         }
2142
2143         /*
2144          * Need enough time to try and get the port back.
2145          */
2146         ha->port_down_retry_count = nv->port_down_retry_count;
2147         if (qlport_down_retry)
2148                 ha->port_down_retry_count = qlport_down_retry;
2149         /* Set login_retry_count */
2150         ha->login_retry_count  = nv->retry_count;
2151         if (ha->port_down_retry_count == nv->port_down_retry_count &&
2152             ha->port_down_retry_count > 3)
2153                 ha->login_retry_count = ha->port_down_retry_count;
2154         else if (ha->port_down_retry_count > (int)ha->login_retry_count)
2155                 ha->login_retry_count = ha->port_down_retry_count;
2156         if (ql2xloginretrycount)
2157                 ha->login_retry_count = ql2xloginretrycount;
2158
2159         icb->lun_enables = __constant_cpu_to_le16(0);
2160         icb->command_resource_count = 0;
2161         icb->immediate_notify_resource_count = 0;
2162         icb->timeout = __constant_cpu_to_le16(0);
2163
2164         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2165                 /* Enable RIO */
2166                 icb->firmware_options[0] &= ~BIT_3;
2167                 icb->add_firmware_options[0] &=
2168                     ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
2169                 icb->add_firmware_options[0] |= BIT_2;
2170                 icb->response_accumulation_timer = 3;
2171                 icb->interrupt_delay_timer = 5;
2172
2173                 vha->flags.process_response_queue = 1;
2174         } else {
2175                 /* Enable ZIO. */
2176                 if (!vha->flags.init_done) {
2177                         ha->zio_mode = icb->add_firmware_options[0] &
2178                             (BIT_3 | BIT_2 | BIT_1 | BIT_0);
2179                         ha->zio_timer = icb->interrupt_delay_timer ?
2180                             icb->interrupt_delay_timer: 2;
2181                 }
2182                 icb->add_firmware_options[0] &=
2183                     ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
2184                 vha->flags.process_response_queue = 0;
2185                 if (ha->zio_mode != QLA_ZIO_DISABLED) {
2186                         ha->zio_mode = QLA_ZIO_MODE_6;
2187
2188                         DEBUG2(printk("scsi(%ld): ZIO mode %d enabled; timer "
2189                             "delay (%d us).\n", vha->host_no, ha->zio_mode,
2190                             ha->zio_timer * 100));
2191                         qla_printk(KERN_INFO, ha,
2192                             "ZIO mode %d enabled; timer delay (%d us).\n",
2193                             ha->zio_mode, ha->zio_timer * 100);
2194
2195                         icb->add_firmware_options[0] |= (uint8_t)ha->zio_mode;
2196                         icb->interrupt_delay_timer = (uint8_t)ha->zio_timer;
2197                         vha->flags.process_response_queue = 1;
2198                 }
2199         }
2200
2201         if (rval) {
2202                 DEBUG2_3(printk(KERN_WARNING
2203                     "scsi(%ld): NVRAM configuration failed!\n", vha->host_no));
2204         }
2205         return (rval);
2206 }
2207
2208 static void
2209 qla2x00_rport_del(void *data)
2210 {
2211         fc_port_t *fcport = data;
2212         struct fc_rport *rport;
2213
2214         spin_lock_irq(fcport->vha->host->host_lock);
2215         rport = fcport->drport ? fcport->drport: fcport->rport;
2216         fcport->drport = NULL;
2217         spin_unlock_irq(fcport->vha->host->host_lock);
2218         if (rport)
2219                 fc_remote_port_delete(rport);
2220 }
2221
2222 /**
2223  * qla2x00_alloc_fcport() - Allocate a generic fcport.
2224  * @ha: HA context
2225  * @flags: allocation flags
2226  *
2227  * Returns a pointer to the allocated fcport, or NULL, if none available.
2228  */
2229 fc_port_t *
2230 qla2x00_alloc_fcport(scsi_qla_host_t *vha, gfp_t flags)
2231 {
2232         fc_port_t *fcport;
2233
2234         fcport = kzalloc(sizeof(fc_port_t), flags);
2235         if (!fcport)
2236                 return NULL;
2237
2238         /* Setup fcport template structure. */
2239         fcport->vha = vha;
2240         fcport->vp_idx = vha->vp_idx;
2241         fcport->port_type = FCT_UNKNOWN;
2242         fcport->loop_id = FC_NO_LOOP_ID;
2243         atomic_set(&fcport->state, FCS_UNCONFIGURED);
2244         fcport->supported_classes = FC_COS_UNSPECIFIED;
2245
2246         return fcport;
2247 }
2248
2249 /*
2250  * qla2x00_configure_loop
2251  *      Updates Fibre Channel Device Database with what is actually on loop.
2252  *
2253  * Input:
2254  *      ha                = adapter block pointer.
2255  *
2256  * Returns:
2257  *      0 = success.
2258  *      1 = error.
2259  *      2 = database was full and device was not configured.
2260  */
2261 static int
2262 qla2x00_configure_loop(scsi_qla_host_t *vha)
2263 {
2264         int  rval;
2265         unsigned long flags, save_flags;
2266         struct qla_hw_data *ha = vha->hw;
2267         rval = QLA_SUCCESS;
2268
2269         /* Get Initiator ID */
2270         if (test_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags)) {
2271                 rval = qla2x00_configure_hba(vha);
2272                 if (rval != QLA_SUCCESS) {
2273                         DEBUG(printk("scsi(%ld): Unable to configure HBA.\n",
2274                             vha->host_no));
2275                         return (rval);
2276                 }
2277         }
2278
2279         save_flags = flags = vha->dpc_flags;
2280         DEBUG(printk("scsi(%ld): Configure loop -- dpc flags =0x%lx\n",
2281             vha->host_no, flags));
2282
2283         /*
2284          * If we have both an RSCN and PORT UPDATE pending then handle them
2285          * both at the same time.
2286          */
2287         clear_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
2288         clear_bit(RSCN_UPDATE, &vha->dpc_flags);
2289
2290         qla2x00_get_data_rate(vha);
2291
2292         /* Determine what we need to do */
2293         if (ha->current_topology == ISP_CFG_FL &&
2294             (test_bit(LOCAL_LOOP_UPDATE, &flags))) {
2295
2296                 vha->flags.rscn_queue_overflow = 1;
2297                 set_bit(RSCN_UPDATE, &flags);
2298
2299         } else if (ha->current_topology == ISP_CFG_F &&
2300             (test_bit(LOCAL_LOOP_UPDATE, &flags))) {
2301
2302                 vha->flags.rscn_queue_overflow = 1;
2303                 set_bit(RSCN_UPDATE, &flags);
2304                 clear_bit(LOCAL_LOOP_UPDATE, &flags);
2305
2306         } else if (ha->current_topology == ISP_CFG_N) {
2307                 clear_bit(RSCN_UPDATE, &flags);
2308
2309         } else if (!vha->flags.online ||
2310             (test_bit(ABORT_ISP_ACTIVE, &flags))) {
2311
2312                 vha->flags.rscn_queue_overflow = 1;
2313                 set_bit(RSCN_UPDATE, &flags);
2314                 set_bit(LOCAL_LOOP_UPDATE, &flags);
2315         }
2316
2317         if (test_bit(LOCAL_LOOP_UPDATE, &flags)) {
2318                 if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
2319                         rval = QLA_FUNCTION_FAILED;
2320                 else
2321                         rval = qla2x00_configure_local_loop(vha);
2322         }
2323
2324         if (rval == QLA_SUCCESS && test_bit(RSCN_UPDATE, &flags)) {
2325                 if (LOOP_TRANSITION(vha))
2326                         rval = QLA_FUNCTION_FAILED;
2327                 else
2328                         rval = qla2x00_configure_fabric(vha);
2329         }
2330
2331         if (rval == QLA_SUCCESS) {
2332                 if (atomic_read(&vha->loop_down_timer) ||
2333                     test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
2334                         rval = QLA_FUNCTION_FAILED;
2335                 } else {
2336                         atomic_set(&vha->loop_state, LOOP_READY);
2337
2338                         DEBUG(printk("scsi(%ld): LOOP READY\n", vha->host_no));
2339                 }
2340         }
2341
2342         if (rval) {
2343                 DEBUG2_3(printk("%s(%ld): *** FAILED ***\n",
2344                     __func__, vha->host_no));
2345         } else {
2346                 DEBUG3(printk("%s: exiting normally\n", __func__));
2347         }
2348
2349         /* Restore state if a resync event occurred during processing */
2350         if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
2351                 if (test_bit(LOCAL_LOOP_UPDATE, &save_flags))
2352                         set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
2353                 if (test_bit(RSCN_UPDATE, &save_flags)) {
2354                         set_bit(RSCN_UPDATE, &vha->dpc_flags);
2355                         vha->flags.rscn_queue_overflow = 1;
2356                 }
2357         }
2358
2359         return (rval);
2360 }
2361
2362
2363
2364 /*
2365  * qla2x00_configure_local_loop
2366  *      Updates Fibre Channel Device Database with local loop devices.
2367  *
2368  * Input:
2369  *      ha = adapter block pointer.
2370  *
2371  * Returns:
2372  *      0 = success.
2373  */
2374 static int
2375 qla2x00_configure_local_loop(scsi_qla_host_t *vha)
2376 {
2377         int             rval, rval2;
2378         int             found_devs;
2379         int             found;
2380         fc_port_t       *fcport, *new_fcport;
2381
2382         uint16_t        index;
2383         uint16_t        entries;
2384         char            *id_iter;
2385         uint16_t        loop_id;
2386         uint8_t         domain, area, al_pa;
2387         struct qla_hw_data *ha = vha->hw;
2388
2389         found_devs = 0;
2390         new_fcport = NULL;
2391         entries = MAX_FIBRE_DEVICES;
2392
2393         DEBUG3(printk("scsi(%ld): Getting FCAL position map\n", vha->host_no));
2394         DEBUG3(qla2x00_get_fcal_position_map(vha, NULL));
2395
2396         /* Get list of logged in devices. */
2397         memset(ha->gid_list, 0, GID_LIST_SIZE);
2398         rval = qla2x00_get_id_list(vha, ha->gid_list, ha->gid_list_dma,
2399             &entries);
2400         if (rval != QLA_SUCCESS)
2401                 goto cleanup_allocation;
2402
2403         DEBUG3(printk("scsi(%ld): Entries in ID list (%d)\n",
2404             vha->host_no, entries));
2405         DEBUG3(qla2x00_dump_buffer((uint8_t *)ha->gid_list,
2406             entries * sizeof(struct gid_list_info)));
2407
2408         /* Allocate temporary fcport for any new fcports discovered. */
2409         new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
2410         if (new_fcport == NULL) {
2411                 rval = QLA_MEMORY_ALLOC_FAILED;
2412                 goto cleanup_allocation;
2413         }
2414         new_fcport->flags &= ~FCF_FABRIC_DEVICE;
2415
2416         /*
2417          * Mark local devices that were present with FCF_DEVICE_LOST for now.
2418          */
2419         list_for_each_entry(fcport, &vha->vp_fcports, list) {
2420                 if (atomic_read(&fcport->state) == FCS_ONLINE &&
2421                     fcport->port_type != FCT_BROADCAST &&
2422                     (fcport->flags & FCF_FABRIC_DEVICE) == 0) {
2423
2424                         DEBUG(printk("scsi(%ld): Marking port lost, "
2425                             "loop_id=0x%04x\n",
2426                             vha->host_no, fcport->loop_id));
2427
2428                         atomic_set(&fcport->state, FCS_DEVICE_LOST);
2429                 }
2430         }
2431
2432         /* Add devices to port list. */
2433         id_iter = (char *)ha->gid_list;
2434         for (index = 0; index < entries; index++) {
2435                 domain = ((struct gid_list_info *)id_iter)->domain;
2436                 area = ((struct gid_list_info *)id_iter)->area;
2437                 al_pa = ((struct gid_list_info *)id_iter)->al_pa;
2438                 if (IS_QLA2100(ha) || IS_QLA2200(ha))
2439                         loop_id = (uint16_t)
2440                             ((struct gid_list_info *)id_iter)->loop_id_2100;
2441                 else
2442                         loop_id = le16_to_cpu(
2443                             ((struct gid_list_info *)id_iter)->loop_id);
2444                 id_iter += ha->gid_list_info_size;
2445
2446                 /* Bypass reserved domain fields. */
2447                 if ((domain & 0xf0) == 0xf0)
2448                         continue;
2449
2450                 /* Bypass if not same domain and area of adapter. */
2451                 if (area && domain &&
2452                     (area != vha->d_id.b.area || domain != vha->d_id.b.domain))
2453                         continue;
2454
2455                 /* Bypass invalid local loop ID. */
2456                 if (loop_id > LAST_LOCAL_LOOP_ID)
2457                         continue;
2458
2459                 /* Fill in member data. */
2460                 new_fcport->d_id.b.domain = domain;
2461                 new_fcport->d_id.b.area = area;
2462                 new_fcport->d_id.b.al_pa = al_pa;
2463                 new_fcport->loop_id = loop_id;
2464                 new_fcport->vp_idx = vha->vp_idx;
2465                 rval2 = qla2x00_get_port_database(vha, new_fcport, 0);
2466                 if (rval2 != QLA_SUCCESS) {
2467                         DEBUG2(printk("scsi(%ld): Failed to retrieve fcport "
2468                             "information -- get_port_database=%x, "
2469                             "loop_id=0x%04x\n",
2470                             vha->host_no, rval2, new_fcport->loop_id));
2471                         DEBUG2(printk("scsi(%ld): Scheduling resync...\n",
2472                             vha->host_no));
2473                         set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
2474                         continue;
2475                 }
2476
2477                 /* Check for matching device in port list. */
2478                 found = 0;
2479                 fcport = NULL;
2480                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
2481                         if (memcmp(new_fcport->port_name, fcport->port_name,
2482                             WWN_SIZE))
2483                                 continue;
2484
2485                         fcport->flags &= ~FCF_FABRIC_DEVICE;
2486                         fcport->loop_id = new_fcport->loop_id;
2487                         fcport->port_type = new_fcport->port_type;
2488                         fcport->d_id.b24 = new_fcport->d_id.b24;
2489                         memcpy(fcport->node_name, new_fcport->node_name,
2490                             WWN_SIZE);
2491
2492                         found++;
2493                         break;
2494                 }
2495
2496                 if (!found) {
2497                         /* New device, add to fcports list. */
2498                         if (vha->vp_idx) {
2499                                 new_fcport->vha = vha;
2500                                 new_fcport->vp_idx = vha->vp_idx;
2501                         }
2502                         list_add_tail(&new_fcport->list, &vha->vp_fcports);
2503
2504                         /* Allocate a new replacement fcport. */
2505                         fcport = new_fcport;
2506                         new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
2507                         if (new_fcport == NULL) {
2508                                 rval = QLA_MEMORY_ALLOC_FAILED;
2509                                 goto cleanup_allocation;
2510                         }
2511                         new_fcport->flags &= ~FCF_FABRIC_DEVICE;
2512                 }
2513
2514                 /* Base iIDMA settings on HBA port speed. */
2515                 fcport->fp_speed = ha->link_data_rate;
2516
2517                 qla2x00_update_fcport(vha, fcport);
2518
2519                 found_devs++;
2520         }
2521
2522 cleanup_allocation:
2523         kfree(new_fcport);
2524
2525         if (rval != QLA_SUCCESS) {
2526                 DEBUG2(printk("scsi(%ld): Configure local loop error exit: "
2527                     "rval=%x\n", vha->host_no, rval));
2528         }
2529
2530         return (rval);
2531 }
2532
2533 static void
2534 qla2x00_iidma_fcport(scsi_qla_host_t *vha, fc_port_t *fcport)
2535 {
2536 #define LS_UNKNOWN      2
2537         static char *link_speeds[] = { "1", "2", "?", "4", "8", "10" };
2538         char *link_speed;
2539         int rval;
2540         uint16_t mb[4];
2541         struct qla_hw_data *ha = vha->hw;
2542
2543         if (!IS_IIDMA_CAPABLE(ha))
2544                 return;
2545
2546         if (fcport->fp_speed == PORT_SPEED_UNKNOWN ||
2547             fcport->fp_speed > ha->link_data_rate)
2548                 return;
2549
2550         rval = qla2x00_set_idma_speed(vha, fcport->loop_id, fcport->fp_speed,
2551             mb);
2552         if (rval != QLA_SUCCESS) {
2553                 DEBUG2(printk("scsi(%ld): Unable to adjust iIDMA "
2554                     "%02x%02x%02x%02x%02x%02x%02x%02x -- %04x %x %04x %04x.\n",
2555                     vha->host_no, fcport->port_name[0], fcport->port_name[1],
2556                     fcport->port_name[2], fcport->port_name[3],
2557                     fcport->port_name[4], fcport->port_name[5],
2558                     fcport->port_name[6], fcport->port_name[7], rval,
2559                     fcport->fp_speed, mb[0], mb[1]));
2560         } else {
2561                 link_speed = link_speeds[LS_UNKNOWN];
2562                 if (fcport->fp_speed < 5)
2563                         link_speed = link_speeds[fcport->fp_speed];
2564                 else if (fcport->fp_speed == 0x13)
2565                         link_speed = link_speeds[5];
2566                 DEBUG2(qla_printk(KERN_INFO, ha,
2567                     "iIDMA adjusted to %s GB/s on "
2568                     "%02x%02x%02x%02x%02x%02x%02x%02x.\n",
2569                     link_speed, fcport->port_name[0],
2570                     fcport->port_name[1], fcport->port_name[2],
2571                     fcport->port_name[3], fcport->port_name[4],
2572                     fcport->port_name[5], fcport->port_name[6],
2573                     fcport->port_name[7]));
2574         }
2575 }
2576
2577 static void
2578 qla2x00_reg_remote_port(scsi_qla_host_t *vha, fc_port_t *fcport)
2579 {
2580         struct fc_rport_identifiers rport_ids;
2581         struct fc_rport *rport;
2582         struct qla_hw_data *ha = vha->hw;
2583
2584         qla2x00_rport_del(fcport);
2585
2586         rport_ids.node_name = wwn_to_u64(fcport->node_name);
2587         rport_ids.port_name = wwn_to_u64(fcport->port_name);
2588         rport_ids.port_id = fcport->d_id.b.domain << 16 |
2589             fcport->d_id.b.area << 8 | fcport->d_id.b.al_pa;
2590         rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
2591         fcport->rport = rport = fc_remote_port_add(vha->host, 0, &rport_ids);
2592         if (!rport) {
2593                 qla_printk(KERN_WARNING, ha,
2594                     "Unable to allocate fc remote port!\n");
2595                 return;
2596         }
2597         spin_lock_irq(fcport->vha->host->host_lock);
2598         *((fc_port_t **)rport->dd_data) = fcport;
2599         spin_unlock_irq(fcport->vha->host->host_lock);
2600
2601         rport->supported_classes = fcport->supported_classes;
2602
2603         rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
2604         if (fcport->port_type == FCT_INITIATOR)
2605                 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
2606         if (fcport->port_type == FCT_TARGET)
2607                 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
2608         fc_remote_port_rolechg(rport, rport_ids.roles);
2609 }
2610
2611 /*
2612  * qla2x00_update_fcport
2613  *      Updates device on list.
2614  *
2615  * Input:
2616  *      ha = adapter block pointer.
2617  *      fcport = port structure pointer.
2618  *
2619  * Return:
2620  *      0  - Success
2621  *  BIT_0 - error
2622  *
2623  * Context:
2624  *      Kernel context.
2625  */
2626 void
2627 qla2x00_update_fcport(scsi_qla_host_t *vha, fc_port_t *fcport)
2628 {
2629         struct qla_hw_data *ha = vha->hw;
2630
2631         fcport->vha = vha;
2632         fcport->login_retry = 0;
2633         fcport->port_login_retry_count = ha->port_down_retry_count *
2634             PORT_RETRY_TIME;
2635         atomic_set(&fcport->port_down_timer, ha->port_down_retry_count *
2636             PORT_RETRY_TIME);
2637         fcport->flags &= ~FCF_LOGIN_NEEDED;
2638
2639         qla2x00_iidma_fcport(vha, fcport);
2640
2641         atomic_set(&fcport->state, FCS_ONLINE);
2642
2643         qla2x00_reg_remote_port(vha, fcport);
2644 }
2645
2646 /*
2647  * qla2x00_configure_fabric
2648  *      Setup SNS devices with loop ID's.
2649  *
2650  * Input:
2651  *      ha = adapter block pointer.
2652  *
2653  * Returns:
2654  *      0 = success.
2655  *      BIT_0 = error
2656  */
2657 static int
2658 qla2x00_configure_fabric(scsi_qla_host_t *vha)
2659 {
2660         int     rval, rval2;
2661         fc_port_t       *fcport, *fcptemp;
2662         uint16_t        next_loopid;
2663         uint16_t        mb[MAILBOX_REGISTER_COUNT];
2664         uint16_t        loop_id;
2665         LIST_HEAD(new_fcports);
2666         struct qla_hw_data *ha = vha->hw;
2667         struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
2668
2669         /* If FL port exists, then SNS is present */
2670         if (IS_FWI2_CAPABLE(ha))
2671                 loop_id = NPH_F_PORT;
2672         else
2673                 loop_id = SNS_FL_PORT;
2674         rval = qla2x00_get_port_name(vha, loop_id, vha->fabric_node_name, 1);
2675         if (rval != QLA_SUCCESS) {
2676                 DEBUG2(printk("scsi(%ld): MBC_GET_PORT_NAME Failed, No FL "
2677                     "Port\n", vha->host_no));
2678
2679                 vha->device_flags &= ~SWITCH_FOUND;
2680                 return (QLA_SUCCESS);
2681         }
2682         vha->device_flags |= SWITCH_FOUND;
2683
2684         /* Mark devices that need re-synchronization. */
2685         rval2 = qla2x00_device_resync(vha);
2686         if (rval2 == QLA_RSCNS_HANDLED) {
2687                 /* No point doing the scan, just continue. */
2688                 return (QLA_SUCCESS);
2689         }
2690         do {
2691                 /* FDMI support. */
2692                 if (ql2xfdmienable &&
2693                     test_and_clear_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags))
2694                         qla2x00_fdmi_register(vha);
2695
2696                 /* Ensure we are logged into the SNS. */
2697                 if (IS_FWI2_CAPABLE(ha))
2698                         loop_id = NPH_SNS;
2699                 else
2700                         loop_id = SIMPLE_NAME_SERVER;
2701                 ha->isp_ops->fabric_login(vha, loop_id, 0xff, 0xff,
2702                     0xfc, mb, BIT_1 | BIT_0);
2703                 if (mb[0] != MBS_COMMAND_COMPLETE) {
2704                         DEBUG2(qla_printk(KERN_INFO, ha,
2705                             "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x "
2706                             "mb[2]=%x mb[6]=%x mb[7]=%x\n", loop_id,
2707                             mb[0], mb[1], mb[2], mb[6], mb[7]));
2708                         return (QLA_SUCCESS);
2709                 }
2710
2711                 if (test_and_clear_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags)) {
2712                         if (qla2x00_rft_id(vha)) {
2713                                 /* EMPTY */
2714                                 DEBUG2(printk("scsi(%ld): Register FC-4 "
2715                                     "TYPE failed.\n", vha->host_no));
2716                         }
2717                         if (qla2x00_rff_id(vha)) {
2718                                 /* EMPTY */
2719                                 DEBUG2(printk("scsi(%ld): Register FC-4 "
2720                                     "Features failed.\n", vha->host_no));
2721                         }
2722                         if (qla2x00_rnn_id(vha)) {
2723                                 /* EMPTY */
2724                                 DEBUG2(printk("scsi(%ld): Register Node Name "
2725                                     "failed.\n", vha->host_no));
2726                         } else if (qla2x00_rsnn_nn(vha)) {
2727                                 /* EMPTY */
2728                                 DEBUG2(printk("scsi(%ld): Register Symbolic "
2729                                     "Node Name failed.\n", vha->host_no));
2730                         }
2731                 }
2732
2733                 rval = qla2x00_find_all_fabric_devs(vha, &new_fcports);
2734                 if (rval != QLA_SUCCESS)
2735                         break;
2736
2737                 /*
2738                  * Logout all previous fabric devices marked lost, except
2739                  * FCP2 devices.
2740                  */
2741                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
2742                         if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
2743                                 break;
2744
2745                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0)
2746                                 continue;
2747
2748                         if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2749                                 qla2x00_mark_device_lost(vha, fcport,
2750                                     ql2xplogiabsentdevice, 0);
2751                                 if (fcport->loop_id != FC_NO_LOOP_ID &&
2752                                     (fcport->flags & FCF_FCP2_DEVICE) == 0 &&
2753                                     fcport->port_type != FCT_INITIATOR &&
2754                                     fcport->port_type != FCT_BROADCAST) {
2755                                         ha->isp_ops->fabric_logout(vha,
2756                                             fcport->loop_id,
2757                                             fcport->d_id.b.domain,
2758                                             fcport->d_id.b.area,
2759                                             fcport->d_id.b.al_pa);
2760                                         fcport->loop_id = FC_NO_LOOP_ID;
2761                                 }
2762                         }
2763                 }
2764
2765                 /* Starting free loop ID. */
2766                 next_loopid = ha->min_external_loopid;
2767
2768                 /*
2769                  * Scan through our port list and login entries that need to be
2770                  * logged in.
2771                  */
2772                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
2773                         if (atomic_read(&vha->loop_down_timer) ||
2774                             test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
2775                                 break;
2776
2777                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 ||
2778                             (fcport->flags & FCF_LOGIN_NEEDED) == 0)
2779                                 continue;
2780
2781                         if (fcport->loop_id == FC_NO_LOOP_ID) {
2782                                 fcport->loop_id = next_loopid;
2783                                 rval = qla2x00_find_new_loop_id(
2784                                     base_vha, fcport);
2785                                 if (rval != QLA_SUCCESS) {
2786                                         /* Ran out of IDs to use */
2787                                         break;
2788                                 }
2789                         }
2790                         /* Login and update database */
2791                         qla2x00_fabric_dev_login(vha, fcport, &next_loopid);
2792                 }
2793
2794                 /* Exit if out of loop IDs. */
2795                 if (rval != QLA_SUCCESS) {
2796                         break;
2797                 }
2798
2799                 /*
2800                  * Login and add the new devices to our port list.
2801                  */
2802                 list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) {
2803                         if (atomic_read(&vha->loop_down_timer) ||
2804                             test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
2805                                 break;
2806
2807                         /* Find a new loop ID to use. */
2808                         fcport->loop_id = next_loopid;
2809                         rval = qla2x00_find_new_loop_id(base_vha, fcport);
2810                         if (rval != QLA_SUCCESS) {
2811                                 /* Ran out of IDs to use */
2812                                 break;
2813                         }
2814
2815                         /* Login and update database */
2816                         qla2x00_fabric_dev_login(vha, fcport, &next_loopid);
2817
2818                         if (vha->vp_idx) {
2819                                 fcport->vha = vha;
2820                                 fcport->vp_idx = vha->vp_idx;
2821                         }
2822                         list_move_tail(&fcport->list, &vha->vp_fcports);
2823                 }
2824         } while (0);
2825
2826         /* Free all new device structures not processed. */
2827         list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) {
2828                 list_del(&fcport->list);
2829                 kfree(fcport);
2830         }
2831
2832         if (rval) {
2833                 DEBUG2(printk("scsi(%ld): Configure fabric error exit: "
2834                     "rval=%d\n", vha->host_no, rval));
2835         }
2836
2837         return (rval);
2838 }
2839
2840
2841 /*
2842  * qla2x00_find_all_fabric_devs
2843  *
2844  * Input:
2845  *      ha = adapter block pointer.
2846  *      dev = database device entry pointer.
2847  *
2848  * Returns:
2849  *      0 = success.
2850  *
2851  * Context:
2852  *      Kernel context.
2853  */
2854 static int
2855 qla2x00_find_all_fabric_devs(scsi_qla_host_t *vha,
2856         struct list_head *new_fcports)
2857 {
2858         int             rval;
2859         uint16_t        loop_id;
2860         fc_port_t       *fcport, *new_fcport, *fcptemp;
2861         int             found;
2862
2863         sw_info_t       *swl;
2864         int             swl_idx;
2865         int             first_dev, last_dev;
2866         port_id_t       wrap, nxt_d_id;
2867         struct qla_hw_data *ha = vha->hw;
2868         struct scsi_qla_host *vp, *base_vha = pci_get_drvdata(ha->pdev);
2869         struct scsi_qla_host *tvp;
2870
2871         rval = QLA_SUCCESS;
2872
2873         /* Try GID_PT to get device list, else GAN. */
2874         swl = kcalloc(MAX_FIBRE_DEVICES, sizeof(sw_info_t), GFP_KERNEL);
2875         if (!swl) {
2876                 /*EMPTY*/
2877                 DEBUG2(printk("scsi(%ld): GID_PT allocations failed, fallback "
2878                     "on GA_NXT\n", vha->host_no));
2879         } else {
2880                 if (qla2x00_gid_pt(vha, swl) != QLA_SUCCESS) {
2881                         kfree(swl);
2882                         swl = NULL;
2883                 } else if (qla2x00_gpn_id(vha, swl) != QLA_SUCCESS) {
2884                         kfree(swl);
2885                         swl = NULL;
2886                 } else if (qla2x00_gnn_id(vha, swl) != QLA_SUCCESS) {
2887                         kfree(swl);
2888                         swl = NULL;
2889                 } else if (ql2xiidmaenable &&
2890                     qla2x00_gfpn_id(vha, swl) == QLA_SUCCESS) {
2891                         qla2x00_gpsc(vha, swl);
2892                 }
2893         }
2894         swl_idx = 0;
2895
2896         /* Allocate temporary fcport for any new fcports discovered. */
2897         new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
2898         if (new_fcport == NULL) {
2899                 kfree(swl);
2900                 return (QLA_MEMORY_ALLOC_FAILED);
2901         }
2902         new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
2903         /* Set start port ID scan at adapter ID. */
2904         first_dev = 1;
2905         last_dev = 0;
2906
2907         /* Starting free loop ID. */
2908         loop_id = ha->min_external_loopid;
2909         for (; loop_id <= ha->max_loop_id; loop_id++) {
2910                 if (qla2x00_is_reserved_id(vha, loop_id))
2911                         continue;
2912
2913                 if (atomic_read(&vha->loop_down_timer) ||
2914                     LOOP_TRANSITION(vha)) {
2915                         atomic_set(&vha->loop_down_timer, 0);
2916                         set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
2917                         set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
2918                         break;
2919                 }
2920
2921                 if (swl != NULL) {
2922                         if (last_dev) {
2923                                 wrap.b24 = new_fcport->d_id.b24;
2924                         } else {
2925                                 new_fcport->d_id.b24 = swl[swl_idx].d_id.b24;
2926                                 memcpy(new_fcport->node_name,
2927                                     swl[swl_idx].node_name, WWN_SIZE);
2928                                 memcpy(new_fcport->port_name,
2929                                     swl[swl_idx].port_name, WWN_SIZE);
2930                                 memcpy(new_fcport->fabric_port_name,
2931                                     swl[swl_idx].fabric_port_name, WWN_SIZE);
2932                                 new_fcport->fp_speed = swl[swl_idx].fp_speed;
2933
2934                                 if (swl[swl_idx].d_id.b.rsvd_1 != 0) {
2935                                         last_dev = 1;
2936                                 }
2937                                 swl_idx++;
2938                         }
2939                 } else {
2940                         /* Send GA_NXT to the switch */
2941                         rval = qla2x00_ga_nxt(vha, new_fcport);
2942                         if (rval != QLA_SUCCESS) {
2943                                 qla_printk(KERN_WARNING, ha,
2944                                     "SNS scan failed -- assuming zero-entry "
2945                                     "result...\n");
2946                                 list_for_each_entry_safe(fcport, fcptemp,
2947                                     new_fcports, list) {
2948                                         list_del(&fcport->list);
2949                                         kfree(fcport);
2950                                 }
2951                                 rval = QLA_SUCCESS;
2952                                 break;
2953                         }
2954                 }
2955
2956                 /* If wrap on switch device list, exit. */
2957                 if (first_dev) {
2958                         wrap.b24 = new_fcport->d_id.b24;
2959                         first_dev = 0;
2960                 } else if (new_fcport->d_id.b24 == wrap.b24) {
2961                         DEBUG2(printk("scsi(%ld): device wrap (%02x%02x%02x)\n",
2962                             vha->host_no, new_fcport->d_id.b.domain,
2963                             new_fcport->d_id.b.area, new_fcport->d_id.b.al_pa));
2964                         break;
2965                 }
2966
2967                 /* Bypass if same physical adapter. */
2968                 if (new_fcport->d_id.b24 == base_vha->d_id.b24)
2969                         continue;
2970
2971                 /* Bypass virtual ports of the same host. */
2972                 found = 0;
2973                 if (ha->num_vhosts) {
2974                         list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) {
2975                                 if (new_fcport->d_id.b24 == vp->d_id.b24) {
2976                                         found = 1;
2977                                         break;
2978                                 }
2979                         }
2980                         if (found)
2981                                 continue;
2982                 }
2983
2984                 /* Bypass if same domain and area of adapter. */
2985                 if (((new_fcport->d_id.b24 & 0xffff00) ==
2986                     (vha->d_id.b24 & 0xffff00)) && ha->current_topology ==
2987                         ISP_CFG_FL)
2988                             continue;
2989
2990                 /* Bypass reserved domain fields. */
2991                 if ((new_fcport->d_id.b.domain & 0xf0) == 0xf0)
2992                         continue;
2993
2994                 /* Locate matching device in database. */
2995                 found = 0;
2996                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
2997                         if (memcmp(new_fcport->port_name, fcport->port_name,
2998                             WWN_SIZE))
2999                                 continue;
3000
3001                         found++;
3002
3003                         /* Update port state. */
3004                         memcpy(fcport->fabric_port_name,
3005                             new_fcport->fabric_port_name, WWN_SIZE);
3006                         fcport->fp_speed = new_fcport->fp_speed;
3007
3008                         /*
3009                          * If address the same and state FCS_ONLINE, nothing
3010                          * changed.
3011                          */
3012                         if (fcport->d_id.b24 == new_fcport->d_id.b24 &&
3013                             atomic_read(&fcport->state) == FCS_ONLINE) {
3014                                 break;
3015                         }
3016
3017                         /*
3018                          * If device was not a fabric device before.
3019                          */
3020                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) {
3021                                 fcport->d_id.b24 = new_fcport->d_id.b24;
3022                                 fcport->loop_id = FC_NO_LOOP_ID;
3023                                 fcport->flags |= (FCF_FABRIC_DEVICE |
3024                                     FCF_LOGIN_NEEDED);
3025                                 break;
3026                         }
3027
3028                         /*
3029                          * Port ID changed or device was marked to be updated;
3030                          * Log it out if still logged in and mark it for
3031                          * relogin later.
3032                          */
3033                         fcport->d_id.b24 = new_fcport->d_id.b24;
3034                         fcport->flags |= FCF_LOGIN_NEEDED;
3035                         if (fcport->loop_id != FC_NO_LOOP_ID &&
3036                             (fcport->flags & FCF_FCP2_DEVICE) == 0 &&
3037                             fcport->port_type != FCT_INITIATOR &&
3038                             fcport->port_type != FCT_BROADCAST) {
3039                                 ha->isp_ops->fabric_logout(vha, fcport->loop_id,
3040                                     fcport->d_id.b.domain, fcport->d_id.b.area,
3041                                     fcport->d_id.b.al_pa);
3042                                 fcport->loop_id = FC_NO_LOOP_ID;
3043                         }
3044
3045                         break;
3046                 }
3047
3048                 if (found)
3049                         continue;
3050                 /* If device was not in our fcports list, then add it. */
3051                 list_add_tail(&new_fcport->list, new_fcports);
3052
3053                 /* Allocate a new replacement fcport. */
3054                 nxt_d_id.b24 = new_fcport->d_id.b24;
3055                 new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
3056                 if (new_fcport == NULL) {
3057                         kfree(swl);
3058                         return (QLA_MEMORY_ALLOC_FAILED);
3059                 }
3060                 new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
3061                 new_fcport->d_id.b24 = nxt_d_id.b24;
3062         }
3063
3064         kfree(swl);
3065         kfree(new_fcport);
3066
3067         return (rval);
3068 }
3069
3070 /*
3071  * qla2x00_find_new_loop_id
3072  *      Scan through our port list and find a new usable loop ID.
3073  *
3074  * Input:
3075  *      ha:     adapter state pointer.
3076  *      dev:    port structure pointer.
3077  *
3078  * Returns:
3079  *      qla2x00 local function return status code.
3080  *
3081  * Context:
3082  *      Kernel context.
3083  */
3084 static int
3085 qla2x00_find_new_loop_id(scsi_qla_host_t *vha, fc_port_t *dev)
3086 {
3087         int     rval;
3088         int     found;
3089         fc_port_t *fcport;
3090         uint16_t first_loop_id;
3091         struct qla_hw_data *ha = vha->hw;
3092         struct scsi_qla_host *vp;
3093         struct scsi_qla_host *tvp;
3094
3095         rval = QLA_SUCCESS;
3096
3097         /* Save starting loop ID. */
3098         first_loop_id = dev->loop_id;
3099
3100         for (;;) {
3101                 /* Skip loop ID if already used by adapter. */
3102                 if (dev->loop_id == vha->loop_id)
3103                         dev->loop_id++;
3104
3105                 /* Skip reserved loop IDs. */
3106                 while (qla2x00_is_reserved_id(vha, dev->loop_id))
3107                         dev->loop_id++;
3108
3109                 /* Reset loop ID if passed the end. */
3110                 if (dev->loop_id > ha->max_loop_id) {
3111                         /* first loop ID. */
3112                         dev->loop_id = ha->min_external_loopid;
3113                 }
3114
3115                 /* Check for loop ID being already in use. */
3116                 found = 0;
3117                 fcport = NULL;
3118                 list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) {
3119                         list_for_each_entry(fcport, &vp->vp_fcports, list) {
3120                                 if (fcport->loop_id == dev->loop_id &&
3121                                                                 fcport != dev) {
3122                                         /* ID possibly in use */
3123                                         found++;
3124                                         break;
3125                                 }
3126                         }
3127                         if (found)
3128                                 break;
3129                 }
3130
3131                 /* If not in use then it is free to use. */
3132                 if (!found) {
3133                         break;
3134                 }
3135
3136                 /* ID in use. Try next value. */
3137                 dev->loop_id++;
3138
3139                 /* If wrap around. No free ID to use. */
3140                 if (dev->loop_id == first_loop_id) {
3141                         dev->loop_id = FC_NO_LOOP_ID;
3142                         rval = QLA_FUNCTION_FAILED;
3143                         break;
3144                 }
3145         }
3146
3147         return (rval);
3148 }
3149
3150 /*
3151  * qla2x00_device_resync
3152  *      Marks devices in the database that needs resynchronization.
3153  *
3154  * Input:
3155  *      ha = adapter block pointer.
3156  *
3157  * Context:
3158  *      Kernel context.
3159  */
3160 static int
3161 qla2x00_device_resync(scsi_qla_host_t *vha)
3162 {
3163         int     rval;
3164         uint32_t mask;
3165         fc_port_t *fcport;
3166         uint32_t rscn_entry;
3167         uint8_t rscn_out_iter;
3168         uint8_t format;
3169         port_id_t d_id;
3170
3171         rval = QLA_RSCNS_HANDLED;
3172
3173         while (vha->rscn_out_ptr != vha->rscn_in_ptr ||
3174             vha->flags.rscn_queue_overflow) {
3175
3176                 rscn_entry = vha->rscn_queue[vha->rscn_out_ptr];
3177                 format = MSB(MSW(rscn_entry));
3178                 d_id.b.domain = LSB(MSW(rscn_entry));
3179                 d_id.b.area = MSB(LSW(rscn_entry));
3180                 d_id.b.al_pa = LSB(LSW(rscn_entry));
3181
3182                 DEBUG(printk("scsi(%ld): RSCN queue entry[%d] = "
3183                     "[%02x/%02x%02x%02x].\n",
3184                     vha->host_no, vha->rscn_out_ptr, format, d_id.b.domain,
3185                     d_id.b.area, d_id.b.al_pa));
3186
3187                 vha->rscn_out_ptr++;
3188                 if (vha->rscn_out_ptr == MAX_RSCN_COUNT)
3189                         vha->rscn_out_ptr = 0;
3190
3191                 /* Skip duplicate entries. */
3192                 for (rscn_out_iter = vha->rscn_out_ptr;
3193                     !vha->flags.rscn_queue_overflow &&
3194                     rscn_out_iter != vha->rscn_in_ptr;
3195                     rscn_out_iter = (rscn_out_iter ==
3196                         (MAX_RSCN_COUNT - 1)) ? 0: rscn_out_iter + 1) {
3197
3198                         if (rscn_entry != vha->rscn_queue[rscn_out_iter])
3199                                 break;
3200
3201                         DEBUG(printk("scsi(%ld): Skipping duplicate RSCN queue "
3202                             "entry found at [%d].\n", vha->host_no,
3203                             rscn_out_iter));
3204
3205                         vha->rscn_out_ptr = rscn_out_iter;
3206                 }
3207
3208                 /* Queue overflow, set switch default case. */
3209                 if (vha->flags.rscn_queue_overflow) {
3210                         DEBUG(printk("scsi(%ld): device_resync: rscn "
3211                             "overflow.\n", vha->host_no));
3212
3213                         format = 3;
3214                         vha->flags.rscn_queue_overflow = 0;
3215                 }
3216
3217                 switch (format) {
3218                 case 0:
3219                         mask = 0xffffff;
3220                         break;
3221                 case 1:
3222                         mask = 0xffff00;
3223                         break;
3224                 case 2:
3225                         mask = 0xff0000;
3226                         break;
3227                 default:
3228                         mask = 0x0;
3229                         d_id.b24 = 0;
3230                         vha->rscn_out_ptr = vha->rscn_in_ptr;
3231                         break;
3232                 }
3233
3234                 rval = QLA_SUCCESS;
3235
3236                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
3237                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 ||
3238                             (fcport->d_id.b24 & mask) != d_id.b24 ||
3239                             fcport->port_type == FCT_BROADCAST)
3240                                 continue;
3241
3242                         if (atomic_read(&fcport->state) == FCS_ONLINE) {
3243                                 if (format != 3 ||
3244                                     fcport->port_type != FCT_INITIATOR) {
3245                                         qla2x00_mark_device_lost(vha, fcport,
3246                                             0, 0);
3247                                 }
3248                         }
3249                 }
3250         }
3251         return (rval);
3252 }
3253
3254 /*
3255  * qla2x00_fabric_dev_login
3256  *      Login fabric target device and update FC port database.
3257  *
3258  * Input:
3259  *      ha:             adapter state pointer.
3260  *      fcport:         port structure list pointer.
3261  *      next_loopid:    contains value of a new loop ID that can be used
3262  *                      by the next login attempt.
3263  *
3264  * Returns:
3265  *      qla2x00 local function return status code.
3266  *
3267  * Context:
3268  *      Kernel context.
3269  */
3270 static int
3271 qla2x00_fabric_dev_login(scsi_qla_host_t *vha, fc_port_t *fcport,
3272     uint16_t *next_loopid)
3273 {
3274         int     rval;
3275         int     retry;
3276         uint8_t opts;
3277         struct qla_hw_data *ha = vha->hw;
3278
3279         rval = QLA_SUCCESS;
3280         retry = 0;
3281
3282         if (IS_ALOGIO_CAPABLE(ha)) {
3283                 rval = qla2x00_post_async_login_work(vha, fcport, NULL);
3284                 if (!rval)
3285                         return rval;
3286         }
3287
3288         rval = qla2x00_fabric_login(vha, fcport, next_loopid);
3289         if (rval == QLA_SUCCESS) {
3290                 /* Send an ADISC to FCP2 devices.*/
3291                 opts = 0;
3292                 if (fcport->flags & FCF_FCP2_DEVICE)
3293                         opts |= BIT_1;
3294                 rval = qla2x00_get_port_database(vha, fcport, opts);
3295                 if (rval != QLA_SUCCESS) {
3296                         ha->isp_ops->fabric_logout(vha, fcport->loop_id,
3297                             fcport->d_id.b.domain, fcport->d_id.b.area,
3298                             fcport->d_id.b.al_pa);
3299                         qla2x00_mark_device_lost(vha, fcport, 1, 0);
3300                 } else {
3301                         qla2x00_update_fcport(vha, fcport);
3302                 }
3303         }
3304
3305         return (rval);
3306 }
3307
3308 /*
3309  * qla2x00_fabric_login
3310  *      Issue fabric login command.
3311  *
3312  * Input:
3313  *      ha = adapter block pointer.
3314  *      device = pointer to FC device type structure.
3315  *
3316  * Returns:
3317  *      0 - Login successfully
3318  *      1 - Login failed
3319  *      2 - Initiator device
3320  *      3 - Fatal error
3321  */
3322 int
3323 qla2x00_fabric_login(scsi_qla_host_t *vha, fc_port_t *fcport,
3324     uint16_t *next_loopid)
3325 {
3326         int     rval;
3327         int     retry;
3328         uint16_t tmp_loopid;
3329         uint16_t mb[MAILBOX_REGISTER_COUNT];
3330         struct qla_hw_data *ha = vha->hw;
3331
3332         retry = 0;
3333         tmp_loopid = 0;
3334
3335         for (;;) {
3336                 DEBUG(printk("scsi(%ld): Trying Fabric Login w/loop id 0x%04x "
3337                     "for port %02x%02x%02x.\n",
3338                     vha->host_no, fcport->loop_id, fcport->d_id.b.domain,
3339                     fcport->d_id.b.area, fcport->d_id.b.al_pa));
3340
3341                 /* Login fcport on switch. */
3342                 ha->isp_ops->fabric_login(vha, fcport->loop_id,
3343                     fcport->d_id.b.domain, fcport->d_id.b.area,
3344                     fcport->d_id.b.al_pa, mb, BIT_0);
3345                 if (mb[0] == MBS_PORT_ID_USED) {
3346                         /*
3347                          * Device has another loop ID.  The firmware team
3348                          * recommends the driver perform an implicit login with
3349                          * the specified ID again. The ID we just used is save
3350                          * here so we return with an ID that can be tried by
3351                          * the next login.
3352                          */
3353                         retry++;
3354                         tmp_loopid = fcport->loop_id;
3355                         fcport->loop_id = mb[1];
3356
3357                         DEBUG(printk("Fabric Login: port in use - next "
3358                             "loop id=0x%04x, port Id=%02x%02x%02x.\n",
3359                             fcport->loop_id, fcport->d_id.b.domain,
3360                             fcport->d_id.b.area, fcport->d_id.b.al_pa));
3361
3362                 } else if (mb[0] == MBS_COMMAND_COMPLETE) {
3363                         /*
3364                          * Login succeeded.
3365                          */
3366                         if (retry) {
3367                                 /* A retry occurred before. */
3368                                 *next_loopid = tmp_loopid;
3369                         } else {
3370                                 /*
3371                                  * No retry occurred before. Just increment the
3372                                  * ID value for next login.
3373                                  */
3374                                 *next_loopid = (fcport->loop_id + 1);
3375                         }
3376
3377                         if (mb[1] & BIT_0) {
3378                                 fcport->port_type = FCT_INITIATOR;
3379                         } else {
3380                                 fcport->port_type = FCT_TARGET;
3381                                 if (mb[1] & BIT_1) {
3382                                         fcport->flags |= FCF_FCP2_DEVICE;
3383                                 }
3384                         }
3385
3386                         if (mb[10] & BIT_0)
3387                                 fcport->supported_classes |= FC_COS_CLASS2;
3388                         if (mb[10] & BIT_1)
3389                                 fcport->supported_classes |= FC_COS_CLASS3;
3390
3391                         rval = QLA_SUCCESS;
3392                         break;
3393                 } else if (mb[0] == MBS_LOOP_ID_USED) {
3394                         /*
3395                          * Loop ID already used, try next loop ID.
3396                          */
3397                         fcport->loop_id++;
3398                         rval = qla2x00_find_new_loop_id(vha, fcport);
3399                         if (rval != QLA_SUCCESS) {
3400                                 /* Ran out of loop IDs to use */
3401                                 break;
3402                         }
3403                 } else if (mb[0] == MBS_COMMAND_ERROR) {
3404                         /*
3405                          * Firmware possibly timed out during login. If NO
3406                          * retries are left to do then the device is declared
3407                          * dead.
3408                          */
3409                         *next_loopid = fcport->loop_id;
3410                         ha->isp_ops->fabric_logout(vha, fcport->loop_id,
3411                             fcport->d_id.b.domain, fcport->d_id.b.area,
3412                             fcport->d_id.b.al_pa);
3413                         qla2x00_mark_device_lost(vha, fcport, 1, 0);
3414
3415                         rval = 1;
3416                         break;
3417                 } else {
3418                         /*
3419                          * unrecoverable / not handled error
3420                          */
3421                         DEBUG2(printk("%s(%ld): failed=%x port_id=%02x%02x%02x "
3422                             "loop_id=%x jiffies=%lx.\n",
3423                             __func__, vha->host_no, mb[0],
3424                             fcport->d_id.b.domain, fcport->d_id.b.area,
3425                             fcport->d_id.b.al_pa, fcport->loop_id, jiffies));
3426
3427                         *next_loopid = fcport->loop_id;
3428                         ha->isp_ops->fabric_logout(vha, fcport->loop_id,
3429                             fcport->d_id.b.domain, fcport->d_id.b.area,
3430                             fcport->d_id.b.al_pa);
3431                         fcport->loop_id = FC_NO_LOOP_ID;
3432                         fcport->login_retry = 0;
3433
3434                         rval = 3;
3435                         break;
3436                 }
3437         }
3438
3439         return (rval);
3440 }
3441
3442 /*
3443  * qla2x00_local_device_login
3444  *      Issue local device login command.
3445  *
3446  * Input:
3447  *      ha = adapter block pointer.
3448  *      loop_id = loop id of device to login to.
3449  *
3450  * Returns (Where's the #define!!!!):
3451  *      0 - Login successfully
3452  *      1 - Login failed
3453  *      3 - Fatal error
3454  */
3455 int
3456 qla2x00_local_device_login(scsi_qla_host_t *vha, fc_port_t *fcport)
3457 {
3458         int             rval;
3459         uint16_t        mb[MAILBOX_REGISTER_COUNT];
3460
3461         memset(mb, 0, sizeof(mb));
3462         rval = qla2x00_login_local_device(vha, fcport, mb, BIT_0);
3463         if (rval == QLA_SUCCESS) {
3464                 /* Interrogate mailbox registers for any errors */
3465                 if (mb[0] == MBS_COMMAND_ERROR)
3466                         rval = 1;
3467                 else if (mb[0] == MBS_COMMAND_PARAMETER_ERROR)
3468                         /* device not in PCB table */
3469                         rval = 3;
3470         }
3471
3472         return (rval);
3473 }
3474
3475 /*
3476  *  qla2x00_loop_resync
3477  *      Resync with fibre channel devices.
3478  *
3479  * Input:
3480  *      ha = adapter block pointer.
3481  *
3482  * Returns:
3483  *      0 = success
3484  */
3485 int
3486 qla2x00_loop_resync(scsi_qla_host_t *vha)
3487 {
3488         int rval = QLA_SUCCESS;
3489         uint32_t wait_time;
3490         struct req_que *req;
3491         struct rsp_que *rsp;
3492
3493         if (vha->hw->flags.cpu_affinity_enabled)
3494                 req = vha->hw->req_q_map[0];
3495         else
3496                 req = vha->req;
3497         rsp = req->rsp;
3498
3499         atomic_set(&vha->loop_state, LOOP_UPDATE);
3500         clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
3501         if (vha->flags.online) {
3502                 if (!(rval = qla2x00_fw_ready(vha))) {
3503                         /* Wait at most MAX_TARGET RSCNs for a stable link. */
3504                         wait_time = 256;
3505                         do {
3506                                 atomic_set(&vha->loop_state, LOOP_UPDATE);
3507
3508                                 /* Issue a marker after FW becomes ready. */
3509                                 qla2x00_marker(vha, req, rsp, 0, 0,
3510                                         MK_SYNC_ALL);
3511                                 vha->marker_needed = 0;
3512
3513                                 /* Remap devices on Loop. */
3514                                 clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
3515
3516                                 qla2x00_configure_loop(vha);
3517                                 wait_time--;
3518                         } while (!atomic_read(&vha->loop_down_timer) &&
3519                                 !(test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags))
3520                                 && wait_time && (test_bit(LOOP_RESYNC_NEEDED,
3521                                 &vha->dpc_flags)));
3522                 }
3523         }
3524
3525         if (test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags))
3526                 return (QLA_FUNCTION_FAILED);
3527
3528         if (rval)
3529                 DEBUG2_3(printk("%s(): **** FAILED ****\n", __func__));
3530
3531         return (rval);
3532 }
3533
3534 void
3535 qla2x00_update_fcports(scsi_qla_host_t *base_vha)
3536 {
3537         fc_port_t *fcport;
3538         struct scsi_qla_host *tvp, *vha;
3539
3540         /* Go with deferred removal of rport references. */
3541         list_for_each_entry_safe(vha, tvp, &base_vha->hw->vp_list, list)
3542                 list_for_each_entry(fcport, &vha->vp_fcports, list)
3543                         if (fcport && fcport->drport &&
3544                             atomic_read(&fcport->state) != FCS_UNCONFIGURED)
3545                                 qla2x00_rport_del(fcport);
3546 }
3547
3548 /*
3549 *  qla2x00_abort_isp
3550 *      Resets ISP and aborts all outstanding commands.
3551 *
3552 * Input:
3553 *      ha           = adapter block pointer.
3554 *
3555 * Returns:
3556 *      0 = success
3557 */
3558 int
3559 qla2x00_abort_isp(scsi_qla_host_t *vha)
3560 {
3561         int rval;
3562         uint8_t        status = 0;
3563         struct qla_hw_data *ha = vha->hw;
3564         struct scsi_qla_host *vp;
3565         struct scsi_qla_host *tvp;
3566         struct req_que *req = ha->req_q_map[0];
3567
3568         if (vha->flags.online) {
3569                 vha->flags.online = 0;
3570                 ha->flags.chip_reset_done = 0;
3571                 clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3572                 ha->qla_stats.total_isp_aborts++;
3573
3574                 qla_printk(KERN_INFO, ha,
3575                     "Performing ISP error recovery - ha= %p.\n", ha);
3576                 ha->isp_ops->reset_chip(vha);
3577
3578                 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
3579                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
3580                         atomic_set(&vha->loop_state, LOOP_DOWN);
3581                         qla2x00_mark_all_devices_lost(vha, 0);
3582                 } else {
3583                         if (!atomic_read(&vha->loop_down_timer))
3584                                 atomic_set(&vha->loop_down_timer,
3585                                     LOOP_DOWN_TIME);
3586                 }
3587
3588                 /* Requeue all commands in outstanding command list. */
3589                 qla2x00_abort_all_cmds(vha, DID_RESET << 16);
3590
3591                 if (unlikely(pci_channel_offline(ha->pdev) &&
3592                     ha->flags.pci_channel_io_perm_failure)) {
3593                         clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
3594                         status = 0;
3595                         return status;
3596                 }
3597
3598                 ha->isp_ops->get_flash_version(vha, req->ring);
3599
3600                 ha->isp_ops->nvram_config(vha);
3601
3602                 if (!qla2x00_restart_isp(vha)) {
3603                         clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
3604
3605                         if (!atomic_read(&vha->loop_down_timer)) {
3606                                 /*
3607                                  * Issue marker command only when we are going
3608                                  * to start the I/O .
3609                                  */
3610                                 vha->marker_needed = 1;
3611                         }
3612
3613                         vha->flags.online = 1;
3614
3615                         ha->isp_ops->enable_intrs(ha);
3616
3617                         ha->isp_abort_cnt = 0;
3618                         clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
3619
3620                         if (IS_QLA81XX(ha))
3621                                 qla2x00_get_fw_version(vha,
3622                                     &ha->fw_major_version,
3623                                     &ha->fw_minor_version,
3624                                     &ha->fw_subminor_version,
3625                                     &ha->fw_attributes, &ha->fw_memory_size,
3626                                     ha->mpi_version, &ha->mpi_capabilities,
3627                                     ha->phy_version);
3628
3629                         if (ha->fce) {
3630                                 ha->flags.fce_enabled = 1;
3631                                 memset(ha->fce, 0,
3632                                     fce_calc_size(ha->fce_bufs));
3633                                 rval = qla2x00_enable_fce_trace(vha,
3634                                     ha->fce_dma, ha->fce_bufs, ha->fce_mb,
3635                                     &ha->fce_bufs);
3636                                 if (rval) {
3637                                         qla_printk(KERN_WARNING, ha,
3638                                             "Unable to reinitialize FCE "
3639                                             "(%d).\n", rval);
3640                                         ha->flags.fce_enabled = 0;
3641                                 }
3642                         }
3643
3644                         if (ha->eft) {
3645                                 memset(ha->eft, 0, EFT_SIZE);
3646                                 rval = qla2x00_enable_eft_trace(vha,
3647                                     ha->eft_dma, EFT_NUM_BUFFERS);
3648                                 if (rval) {
3649                                         qla_printk(KERN_WARNING, ha,
3650                                             "Unable to reinitialize EFT "
3651                                             "(%d).\n", rval);
3652                                 }
3653                         }
3654                 } else {        /* failed the ISP abort */
3655                         vha->flags.online = 1;
3656                         if (test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
3657                                 if (ha->isp_abort_cnt == 0) {
3658                                         qla_printk(KERN_WARNING, ha,
3659                                             "ISP error recovery failed - "
3660                                             "board disabled\n");
3661                                         /*
3662                                          * The next call disables the board
3663                                          * completely.
3664                                          */
3665                                         ha->isp_ops->reset_adapter(vha);
3666                                         vha->flags.online = 0;
3667                                         clear_bit(ISP_ABORT_RETRY,
3668                                             &vha->dpc_flags);
3669                                         status = 0;
3670                                 } else { /* schedule another ISP abort */
3671                                         ha->isp_abort_cnt--;
3672                                         DEBUG(printk("qla%ld: ISP abort - "
3673                                             "retry remaining %d\n",
3674                                             vha->host_no, ha->isp_abort_cnt));
3675                                         status = 1;
3676                                 }
3677                         } else {
3678                                 ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT;
3679                                 DEBUG(printk("qla2x00(%ld): ISP error recovery "
3680                                     "- retrying (%d) more times\n",
3681                                     vha->host_no, ha->isp_abort_cnt));
3682                                 set_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
3683                                 status = 1;
3684                         }
3685                 }
3686
3687         }
3688
3689         if (!status) {
3690                 DEBUG(printk(KERN_INFO
3691                                 "qla2x00_abort_isp(%ld): succeeded.\n",
3692                                 vha->host_no));
3693                 list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) {
3694                         if (vp->vp_idx)
3695                                 qla2x00_vp_abort_isp(vp);
3696                 }
3697         } else {
3698                 qla_printk(KERN_INFO, ha,
3699                         "qla2x00_abort_isp: **** FAILED ****\n");
3700         }
3701
3702         return(status);
3703 }
3704
3705 /*
3706 *  qla2x00_restart_isp
3707 *      restarts the ISP after a reset
3708 *
3709 * Input:
3710 *      ha = adapter block pointer.
3711 *
3712 * Returns:
3713 *      0 = success
3714 */
3715 static int
3716 qla2x00_restart_isp(scsi_qla_host_t *vha)
3717 {
3718         int status = 0;
3719         uint32_t wait_time;
3720         struct qla_hw_data *ha = vha->hw;
3721         struct req_que *req = ha->req_q_map[0];
3722         struct rsp_que *rsp = ha->rsp_q_map[0];
3723
3724         /* If firmware needs to be loaded */
3725         if (qla2x00_isp_firmware(vha)) {
3726                 vha->flags.online = 0;
3727                 status = ha->isp_ops->chip_diag(vha);
3728                 if (!status)
3729                         status = qla2x00_setup_chip(vha);
3730         }
3731
3732         if (!status && !(status = qla2x00_init_rings(vha))) {
3733                 clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
3734                 ha->flags.chip_reset_done = 1;
3735                 /* Initialize the queues in use */
3736                 qla25xx_init_queues(ha);
3737
3738                 status = qla2x00_fw_ready(vha);
3739                 if (!status) {
3740                         DEBUG(printk("%s(): Start configure loop, "
3741                             "status = %d\n", __func__, status));
3742
3743                         /* Issue a marker after FW becomes ready. */
3744                         qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL);
3745
3746                         vha->flags.online = 1;
3747                         /* Wait at most MAX_TARGET RSCNs for a stable link. */
3748                         wait_time = 256;
3749                         do {
3750                                 clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
3751                                 qla2x00_configure_loop(vha);
3752                                 wait_time--;
3753                         } while (!atomic_read(&vha->loop_down_timer) &&
3754                                 !(test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags))
3755                                 && wait_time && (test_bit(LOOP_RESYNC_NEEDED,
3756                                 &vha->dpc_flags)));
3757                 }
3758
3759                 /* if no cable then assume it's good */
3760                 if ((vha->device_flags & DFLG_NO_CABLE))
3761                         status = 0;
3762
3763                 DEBUG(printk("%s(): Configure loop done, status = 0x%x\n",
3764                                 __func__,
3765                                 status));
3766         }
3767         return (status);
3768 }
3769
3770 static int
3771 qla25xx_init_queues(struct qla_hw_data *ha)
3772 {
3773         struct rsp_que *rsp = NULL;
3774         struct req_que *req = NULL;
3775         struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
3776         int ret = -1;
3777         int i;
3778
3779         for (i = 1; i < ha->max_rsp_queues; i++) {
3780                 rsp = ha->rsp_q_map[i];
3781                 if (rsp) {
3782                         rsp->options &= ~BIT_0;
3783                         ret = qla25xx_init_rsp_que(base_vha, rsp);
3784                         if (ret != QLA_SUCCESS)
3785                                 DEBUG2_17(printk(KERN_WARNING
3786                                         "%s Rsp que:%d init failed\n", __func__,
3787                                                 rsp->id));
3788                         else
3789                                 DEBUG2_17(printk(KERN_INFO
3790                                         "%s Rsp que:%d inited\n", __func__,
3791                                                 rsp->id));
3792                 }
3793         }
3794         for (i = 1; i < ha->max_req_queues; i++) {
3795                 req = ha->req_q_map[i];
3796                 if (req) {
3797                 /* Clear outstanding commands array. */
3798                         req->options &= ~BIT_0;
3799                         ret = qla25xx_init_req_que(base_vha, req);
3800                         if (ret != QLA_SUCCESS)
3801                                 DEBUG2_17(printk(KERN_WARNING
3802                                         "%s Req que:%d init failed\n", __func__,
3803                                                 req->id));
3804                         else
3805                                 DEBUG2_17(printk(KERN_WARNING
3806                                         "%s Req que:%d inited\n", __func__,
3807                                                 req->id));
3808                 }
3809         }
3810         return ret;
3811 }
3812
3813 /*
3814 * qla2x00_reset_adapter
3815 *      Reset adapter.
3816 *
3817 * Input:
3818 *      ha = adapter block pointer.
3819 */
3820 void
3821 qla2x00_reset_adapter(scsi_qla_host_t *vha)
3822 {
3823         unsigned long flags = 0;
3824         struct qla_hw_data *ha = vha->hw;
3825         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3826
3827         vha->flags.online = 0;
3828         ha->isp_ops->disable_intrs(ha);
3829
3830         spin_lock_irqsave(&ha->hardware_lock, flags);
3831         WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
3832         RD_REG_WORD(&reg->hccr);                        /* PCI Posting. */
3833         WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
3834         RD_REG_WORD(&reg->hccr);                        /* PCI Posting. */
3835         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3836 }
3837
3838 void
3839 qla24xx_reset_adapter(scsi_qla_host_t *vha)
3840 {
3841         unsigned long flags = 0;
3842         struct qla_hw_data *ha = vha->hw;
3843         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
3844
3845         vha->flags.online = 0;
3846         ha->isp_ops->disable_intrs(ha);
3847
3848         spin_lock_irqsave(&ha->hardware_lock, flags);
3849         WRT_REG_DWORD(&reg->hccr, HCCRX_SET_RISC_RESET);
3850         RD_REG_DWORD(&reg->hccr);
3851         WRT_REG_DWORD(&reg->hccr, HCCRX_REL_RISC_PAUSE);
3852         RD_REG_DWORD(&reg->hccr);
3853         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3854
3855         if (IS_NOPOLLING_TYPE(ha))
3856                 ha->isp_ops->enable_intrs(ha);
3857 }
3858
3859 /* On sparc systems, obtain port and node WWN from firmware
3860  * properties.
3861  */
3862 static void qla24xx_nvram_wwn_from_ofw(scsi_qla_host_t *vha,
3863         struct nvram_24xx *nv)
3864 {
3865 #ifdef CONFIG_SPARC
3866         struct qla_hw_data *ha = vha->hw;
3867         struct pci_dev *pdev = ha->pdev;
3868         struct device_node *dp = pci_device_to_OF_node(pdev);
3869         const u8 *val;
3870         int len;
3871
3872         val = of_get_property(dp, "port-wwn", &len);
3873         if (val && len >= WWN_SIZE)
3874                 memcpy(nv->port_name, val, WWN_SIZE);
3875
3876         val = of_get_property(dp, "node-wwn", &len);
3877         if (val && len >= WWN_SIZE)
3878                 memcpy(nv->node_name, val, WWN_SIZE);
3879 #endif
3880 }
3881
3882 int
3883 qla24xx_nvram_config(scsi_qla_host_t *vha)
3884 {
3885         int   rval;
3886         struct init_cb_24xx *icb;
3887         struct nvram_24xx *nv;
3888         uint32_t *dptr;
3889         uint8_t  *dptr1, *dptr2;
3890         uint32_t chksum;
3891         uint16_t cnt;
3892         struct qla_hw_data *ha = vha->hw;
3893
3894         rval = QLA_SUCCESS;
3895         icb = (struct init_cb_24xx *)ha->init_cb;
3896         nv = ha->nvram;
3897
3898         /* Determine NVRAM starting address. */
3899         if (ha->flags.port0) {
3900                 ha->nvram_base = FA_NVRAM_FUNC0_ADDR;
3901                 ha->vpd_base = FA_NVRAM_VPD0_ADDR;
3902         } else {
3903                 ha->nvram_base = FA_NVRAM_FUNC1_ADDR;
3904                 ha->vpd_base = FA_NVRAM_VPD1_ADDR;
3905         }
3906         ha->nvram_size = sizeof(struct nvram_24xx);
3907         ha->vpd_size = FA_NVRAM_VPD_SIZE;
3908
3909         /* Get VPD data into cache */
3910         ha->vpd = ha->nvram + VPD_OFFSET;
3911         ha->isp_ops->read_nvram(vha, (uint8_t *)ha->vpd,
3912             ha->nvram_base - FA_NVRAM_FUNC0_ADDR, FA_NVRAM_VPD_SIZE * 4);
3913
3914         /* Get NVRAM data into cache and calculate checksum. */
3915         dptr = (uint32_t *)nv;
3916         ha->isp_ops->read_nvram(vha, (uint8_t *)dptr, ha->nvram_base,
3917             ha->nvram_size);
3918         for (cnt = 0, chksum = 0; cnt < ha->nvram_size >> 2; cnt++)
3919                 chksum += le32_to_cpu(*dptr++);
3920
3921         DEBUG5(printk("scsi(%ld): Contents of NVRAM\n", vha->host_no));
3922         DEBUG5(qla2x00_dump_buffer((uint8_t *)nv, ha->nvram_size));
3923
3924         /* Bad NVRAM data, set defaults parameters. */
3925         if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' || nv->id[2] != 'P'
3926             || nv->id[3] != ' ' ||
3927             nv->nvram_version < __constant_cpu_to_le16(ICB_VERSION)) {
3928                 /* Reset NVRAM data. */
3929                 qla_printk(KERN_WARNING, ha, "Inconsistent NVRAM detected: "
3930                     "checksum=0x%x id=%c version=0x%x.\n", chksum, nv->id[0],
3931                     le16_to_cpu(nv->nvram_version));
3932                 qla_printk(KERN_WARNING, ha, "Falling back to functioning (yet "
3933                     "invalid -- WWPN) defaults.\n");
3934
3935                 /*
3936                  * Set default initialization control block.
3937                  */
3938                 memset(nv, 0, ha->nvram_size);
3939                 nv->nvram_version = __constant_cpu_to_le16(ICB_VERSION);
3940                 nv->version = __constant_cpu_to_le16(ICB_VERSION);
3941                 nv->frame_payload_size = __constant_cpu_to_le16(2048);
3942                 nv->execution_throttle = __constant_cpu_to_le16(0xFFFF);
3943                 nv->exchange_count = __constant_cpu_to_le16(0);
3944                 nv->hard_address = __constant_cpu_to_le16(124);
3945                 nv->port_name[0] = 0x21;
3946                 nv->port_name[1] = 0x00 + ha->port_no;
3947                 nv->port_name[2] = 0x00;
3948                 nv->port_name[3] = 0xe0;
3949                 nv->port_name[4] = 0x8b;
3950                 nv->port_name[5] = 0x1c;
3951                 nv->port_name[6] = 0x55;
3952                 nv->port_name[7] = 0x86;
3953                 nv->node_name[0] = 0x20;
3954                 nv->node_name[1] = 0x00;
3955                 nv->node_name[2] = 0x00;
3956                 nv->node_name[3] = 0xe0;
3957                 nv->node_name[4] = 0x8b;
3958                 nv->node_name[5] = 0x1c;
3959                 nv->node_name[6] = 0x55;
3960                 nv->node_name[7] = 0x86;
3961                 qla24xx_nvram_wwn_from_ofw(vha, nv);
3962                 nv->login_retry_count = __constant_cpu_to_le16(8);
3963                 nv->interrupt_delay_timer = __constant_cpu_to_le16(0);
3964                 nv->login_timeout = __constant_cpu_to_le16(0);
3965                 nv->firmware_options_1 =
3966                     __constant_cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1);
3967                 nv->firmware_options_2 = __constant_cpu_to_le32(2 << 4);
3968                 nv->firmware_options_2 |= __constant_cpu_to_le32(BIT_12);
3969                 nv->firmware_options_3 = __constant_cpu_to_le32(2 << 13);
3970                 nv->host_p = __constant_cpu_to_le32(BIT_11|BIT_10);
3971                 nv->efi_parameters = __constant_cpu_to_le32(0);
3972                 nv->reset_delay = 5;
3973                 nv->max_luns_per_target = __constant_cpu_to_le16(128);
3974                 nv->port_down_retry_count = __constant_cpu_to_le16(30);
3975                 nv->link_down_timeout = __constant_cpu_to_le16(30);
3976
3977                 rval = 1;
3978         }
3979
3980         /* Reset Initialization control block */
3981         memset(icb, 0, ha->init_cb_size);
3982
3983         /* Copy 1st segment. */
3984         dptr1 = (uint8_t *)icb;
3985         dptr2 = (uint8_t *)&nv->version;
3986         cnt = (uint8_t *)&icb->response_q_inpointer - (uint8_t *)&icb->version;
3987         while (cnt--)
3988                 *dptr1++ = *dptr2++;
3989
3990         icb->login_retry_count = nv->login_retry_count;
3991         icb->link_down_on_nos = nv->link_down_on_nos;
3992
3993         /* Copy 2nd segment. */
3994         dptr1 = (uint8_t *)&icb->interrupt_delay_timer;
3995         dptr2 = (uint8_t *)&nv->interrupt_delay_timer;
3996         cnt = (uint8_t *)&icb->reserved_3 -
3997             (uint8_t *)&icb->interrupt_delay_timer;
3998         while (cnt--)
3999                 *dptr1++ = *dptr2++;
4000
4001         /*
4002          * Setup driver NVRAM options.
4003          */
4004         qla2x00_set_model_info(vha, nv->model_name, sizeof(nv->model_name),
4005             "QLA2462");
4006
4007         /* Use alternate WWN? */
4008         if (nv->host_p & __constant_cpu_to_le32(BIT_15)) {
4009                 memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
4010                 memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
4011         }
4012
4013         /* Prepare nodename */
4014         if ((icb->firmware_options_1 & __constant_cpu_to_le32(BIT_14)) == 0) {
4015                 /*
4016                  * Firmware will apply the following mask if the nodename was
4017                  * not provided.
4018                  */
4019                 memcpy(icb->node_name, icb->port_name, WWN_SIZE);
4020                 icb->node_name[0] &= 0xF0;
4021         }
4022
4023         /* Set host adapter parameters. */
4024         ha->flags.disable_risc_code_load = 0;
4025         ha->flags.enable_lip_reset = 0;
4026         ha->flags.enable_lip_full_login =
4027             le32_to_cpu(nv->host_p) & BIT_10 ? 1: 0;
4028         ha->flags.enable_target_reset =
4029             le32_to_cpu(nv->host_p) & BIT_11 ? 1: 0;
4030         ha->flags.enable_led_scheme = 0;
4031         ha->flags.disable_serdes = le32_to_cpu(nv->host_p) & BIT_5 ? 1: 0;
4032
4033         ha->operating_mode = (le32_to_cpu(icb->firmware_options_2) &
4034             (BIT_6 | BIT_5 | BIT_4)) >> 4;
4035
4036         memcpy(ha->fw_seriallink_options24, nv->seriallink_options,
4037             sizeof(ha->fw_seriallink_options24));
4038
4039         /* save HBA serial number */
4040         ha->serial0 = icb->port_name[5];
4041         ha->serial1 = icb->port_name[6];
4042         ha->serial2 = icb->port_name[7];
4043         memcpy(vha->node_name, icb->node_name, WWN_SIZE);
4044         memcpy(vha->port_name, icb->port_name, WWN_SIZE);
4045
4046         icb->execution_throttle = __constant_cpu_to_le16(0xFFFF);
4047
4048         ha->retry_count = le16_to_cpu(nv->login_retry_count);
4049
4050         /* Set minimum login_timeout to 4 seconds. */
4051         if (le16_to_cpu(nv->login_timeout) < ql2xlogintimeout)
4052                 nv->login_timeout = cpu_to_le16(ql2xlogintimeout);
4053         if (le16_to_cpu(nv->login_timeout) < 4)
4054                 nv->login_timeout = __constant_cpu_to_le16(4);
4055         ha->login_timeout = le16_to_cpu(nv->login_timeout);
4056         icb->login_timeout = nv->login_timeout;
4057
4058         /* Set minimum RATOV to 100 tenths of a second. */
4059         ha->r_a_tov = 100;
4060
4061         ha->loop_reset_delay = nv->reset_delay;
4062
4063         /* Link Down Timeout = 0:
4064          *
4065          *      When Port Down timer expires we will start returning
4066          *      I/O's to OS with "DID_NO_CONNECT".
4067          *
4068          * Link Down Timeout != 0:
4069          *
4070          *       The driver waits for the link to come up after link down
4071          *       before returning I/Os to OS with "DID_NO_CONNECT".
4072          */
4073         if (le16_to_cpu(nv->link_down_timeout) == 0) {
4074                 ha->loop_down_abort_time =
4075                     (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
4076         } else {
4077                 ha->link_down_timeout = le16_to_cpu(nv->link_down_timeout);
4078                 ha->loop_down_abort_time =
4079                     (LOOP_DOWN_TIME - ha->link_down_timeout);
4080         }
4081
4082         /* Need enough time to try and get the port back. */
4083         ha->port_down_retry_count = le16_to_cpu(nv->port_down_retry_count);
4084         if (qlport_down_retry)
4085                 ha->port_down_retry_count = qlport_down_retry;
4086
4087         /* Set login_retry_count */
4088         ha->login_retry_count  = le16_to_cpu(nv->login_retry_count);
4089         if (ha->port_down_retry_count ==
4090             le16_to_cpu(nv->port_down_retry_count) &&
4091             ha->port_down_retry_count > 3)
4092                 ha->login_retry_count = ha->port_down_retry_count;
4093         else if (ha->port_down_retry_count > (int)ha->login_retry_count)
4094                 ha->login_retry_count = ha->port_down_retry_count;
4095         if (ql2xloginretrycount)
4096                 ha->login_retry_count = ql2xloginretrycount;
4097
4098         /* Enable ZIO. */
4099         if (!vha->flags.init_done) {
4100                 ha->zio_mode = le32_to_cpu(icb->firmware_options_2) &
4101                     (BIT_3 | BIT_2 | BIT_1 | BIT_0);
4102                 ha->zio_timer = le16_to_cpu(icb->interrupt_delay_timer) ?
4103                     le16_to_cpu(icb->interrupt_delay_timer): 2;
4104         }
4105         icb->firmware_options_2 &= __constant_cpu_to_le32(
4106             ~(BIT_3 | BIT_2 | BIT_1 | BIT_0));
4107         vha->flags.process_response_queue = 0;
4108         if (ha->zio_mode != QLA_ZIO_DISABLED) {
4109                 ha->zio_mode = QLA_ZIO_MODE_6;
4110
4111                 DEBUG2(printk("scsi(%ld): ZIO mode %d enabled; timer delay "
4112                     "(%d us).\n", vha->host_no, ha->zio_mode,
4113                     ha->zio_timer * 100));
4114                 qla_printk(KERN_INFO, ha,
4115                     "ZIO mode %d enabled; timer delay (%d us).\n",
4116                     ha->zio_mode, ha->zio_timer * 100);
4117
4118                 icb->firmware_options_2 |= cpu_to_le32(
4119                     (uint32_t)ha->zio_mode);
4120                 icb->interrupt_delay_timer = cpu_to_le16(ha->zio_timer);
4121                 vha->flags.process_response_queue = 1;
4122         }
4123
4124         if (rval) {
4125                 DEBUG2_3(printk(KERN_WARNING
4126                     "scsi(%ld): NVRAM configuration failed!\n", vha->host_no));
4127         }
4128         return (rval);
4129 }
4130
4131 static int
4132 qla24xx_load_risc_flash(scsi_qla_host_t *vha, uint32_t *srisc_addr,
4133     uint32_t faddr)
4134 {
4135         int     rval = QLA_SUCCESS;
4136         int     segments, fragment;
4137         uint32_t *dcode, dlen;
4138         uint32_t risc_addr;
4139         uint32_t risc_size;
4140         uint32_t i;
4141         struct qla_hw_data *ha = vha->hw;
4142         struct req_que *req = ha->req_q_map[0];
4143
4144         qla_printk(KERN_INFO, ha,
4145             "FW: Loading from flash (%x)...\n", faddr);
4146
4147         rval = QLA_SUCCESS;
4148
4149         segments = FA_RISC_CODE_SEGMENTS;
4150         dcode = (uint32_t *)req->ring;
4151         *srisc_addr = 0;
4152
4153         /* Validate firmware image by checking version. */
4154         qla24xx_read_flash_data(vha, dcode, faddr + 4, 4);
4155         for (i = 0; i < 4; i++)
4156                 dcode[i] = be32_to_cpu(dcode[i]);
4157         if ((dcode[0] == 0xffffffff && dcode[1] == 0xffffffff &&
4158             dcode[2] == 0xffffffff && dcode[3] == 0xffffffff) ||
4159             (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
4160                 dcode[3] == 0)) {
4161                 qla_printk(KERN_WARNING, ha,
4162                     "Unable to verify integrity of flash firmware image!\n");
4163                 qla_printk(KERN_WARNING, ha,
4164                     "Firmware data: %08x %08x %08x %08x!\n", dcode[0],
4165                     dcode[1], dcode[2], dcode[3]);
4166
4167                 return QLA_FUNCTION_FAILED;
4168         }
4169
4170         while (segments && rval == QLA_SUCCESS) {
4171                 /* Read segment's load information. */
4172                 qla24xx_read_flash_data(vha, dcode, faddr, 4);
4173
4174                 risc_addr = be32_to_cpu(dcode[2]);
4175                 *srisc_addr = *srisc_addr == 0 ? risc_addr : *srisc_addr;
4176                 risc_size = be32_to_cpu(dcode[3]);
4177
4178                 fragment = 0;
4179                 while (risc_size > 0 && rval == QLA_SUCCESS) {
4180                         dlen = (uint32_t)(ha->fw_transfer_size >> 2);
4181                         if (dlen > risc_size)
4182                                 dlen = risc_size;
4183
4184                         DEBUG7(printk("scsi(%ld): Loading risc segment@ risc "
4185                             "addr %x, number of dwords 0x%x, offset 0x%x.\n",
4186                             vha->host_no, risc_addr, dlen, faddr));
4187
4188                         qla24xx_read_flash_data(vha, dcode, faddr, dlen);
4189                         for (i = 0; i < dlen; i++)
4190                                 dcode[i] = swab32(dcode[i]);
4191
4192                         rval = qla2x00_load_ram(vha, req->dma, risc_addr,
4193                             dlen);
4194                         if (rval) {
4195                                 DEBUG(printk("scsi(%ld):[ERROR] Failed to load "
4196                                     "segment %d of firmware\n", vha->host_no,
4197                                     fragment));
4198                                 qla_printk(KERN_WARNING, ha,
4199                                     "[ERROR] Failed to load segment %d of "
4200                                     "firmware\n", fragment);
4201                                 break;
4202                         }
4203
4204                         faddr += dlen;
4205                         risc_addr += dlen;
4206                         risc_size -= dlen;
4207                         fragment++;
4208                 }
4209
4210                 /* Next segment. */
4211                 segments--;
4212         }
4213
4214         return rval;
4215 }
4216
4217 #define QLA_FW_URL "ftp://ftp.qlogic.com/outgoing/linux/firmware/"
4218
4219 int
4220 qla2x00_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
4221 {
4222         int     rval;
4223         int     i, fragment;
4224         uint16_t *wcode, *fwcode;
4225         uint32_t risc_addr, risc_size, fwclen, wlen, *seg;
4226         struct fw_blob *blob;
4227         struct qla_hw_data *ha = vha->hw;
4228         struct req_que *req = ha->req_q_map[0];
4229
4230         /* Load firmware blob. */
4231         blob = qla2x00_request_firmware(vha);
4232         if (!blob) {
4233                 qla_printk(KERN_ERR, ha, "Firmware image unavailable.\n");
4234                 qla_printk(KERN_ERR, ha, "Firmware images can be retrieved "
4235                     "from: " QLA_FW_URL ".\n");
4236                 return QLA_FUNCTION_FAILED;
4237         }
4238
4239         rval = QLA_SUCCESS;
4240
4241         wcode = (uint16_t *)req->ring;
4242         *srisc_addr = 0;
4243         fwcode = (uint16_t *)blob->fw->data;
4244         fwclen = 0;
4245
4246         /* Validate firmware image by checking version. */
4247         if (blob->fw->size < 8 * sizeof(uint16_t)) {
4248                 qla_printk(KERN_WARNING, ha,
4249                     "Unable to verify integrity of firmware image (%Zd)!\n",
4250                     blob->fw->size);
4251                 goto fail_fw_integrity;
4252         }
4253         for (i = 0; i < 4; i++)
4254                 wcode[i] = be16_to_cpu(fwcode[i + 4]);
4255         if ((wcode[0] == 0xffff && wcode[1] == 0xffff && wcode[2] == 0xffff &&
4256             wcode[3] == 0xffff) || (wcode[0] == 0 && wcode[1] == 0 &&
4257                 wcode[2] == 0 && wcode[3] == 0)) {
4258                 qla_printk(KERN_WARNING, ha,
4259                     "Unable to verify integrity of firmware image!\n");
4260                 qla_printk(KERN_WARNING, ha,
4261                     "Firmware data: %04x %04x %04x %04x!\n", wcode[0],
4262                     wcode[1], wcode[2], wcode[3]);
4263                 goto fail_fw_integrity;
4264         }
4265
4266         seg = blob->segs;
4267         while (*seg && rval == QLA_SUCCESS) {
4268                 risc_addr = *seg;
4269                 *srisc_addr = *srisc_addr == 0 ? *seg : *srisc_addr;
4270                 risc_size = be16_to_cpu(fwcode[3]);
4271
4272                 /* Validate firmware image size. */
4273                 fwclen += risc_size * sizeof(uint16_t);
4274                 if (blob->fw->size < fwclen) {
4275                         qla_printk(KERN_WARNING, ha,
4276                             "Unable to verify integrity of firmware image "
4277                             "(%Zd)!\n", blob->fw->size);
4278                         goto fail_fw_integrity;
4279                 }
4280
4281                 fragment = 0;
4282                 while (risc_size > 0 && rval == QLA_SUCCESS) {
4283                         wlen = (uint16_t)(ha->fw_transfer_size >> 1);
4284                         if (wlen > risc_size)
4285                                 wlen = risc_size;
4286
4287                         DEBUG7(printk("scsi(%ld): Loading risc segment@ risc "
4288                             "addr %x, number of words 0x%x.\n", vha->host_no,
4289                             risc_addr, wlen));
4290
4291                         for (i = 0; i < wlen; i++)
4292                                 wcode[i] = swab16(fwcode[i]);
4293
4294                         rval = qla2x00_load_ram(vha, req->dma, risc_addr,
4295                             wlen);
4296                         if (rval) {
4297                                 DEBUG(printk("scsi(%ld):[ERROR] Failed to load "
4298                                     "segment %d of firmware\n", vha->host_no,
4299                                     fragment));
4300                                 qla_printk(KERN_WARNING, ha,
4301                                     "[ERROR] Failed to load segment %d of "
4302                                     "firmware\n", fragment);
4303                                 break;
4304                         }
4305
4306                         fwcode += wlen;
4307                         risc_addr += wlen;
4308                         risc_size -= wlen;
4309                         fragment++;
4310                 }
4311
4312                 /* Next segment. */
4313                 seg++;
4314         }
4315         return rval;
4316
4317 fail_fw_integrity:
4318         return QLA_FUNCTION_FAILED;
4319 }
4320
4321 static int
4322 qla24xx_load_risc_blob(scsi_qla_host_t *vha, uint32_t *srisc_addr)
4323 {
4324         int     rval;
4325         int     segments, fragment;
4326         uint32_t *dcode, dlen;
4327         uint32_t risc_addr;
4328         uint32_t risc_size;
4329         uint32_t i;
4330         struct fw_blob *blob;
4331         uint32_t *fwcode, fwclen;
4332         struct qla_hw_data *ha = vha->hw;
4333         struct req_que *req = ha->req_q_map[0];
4334
4335         /* Load firmware blob. */
4336         blob = qla2x00_request_firmware(vha);
4337         if (!blob) {
4338                 qla_printk(KERN_ERR, ha, "Firmware image unavailable.\n");
4339                 qla_printk(KERN_ERR, ha, "Firmware images can be retrieved "
4340                     "from: " QLA_FW_URL ".\n");
4341
4342                 return QLA_FUNCTION_FAILED;
4343         }
4344
4345         qla_printk(KERN_INFO, ha,
4346             "FW: Loading via request-firmware...\n");
4347
4348         rval = QLA_SUCCESS;
4349
4350         segments = FA_RISC_CODE_SEGMENTS;
4351         dcode = (uint32_t *)req->ring;
4352         *srisc_addr = 0;
4353         fwcode = (uint32_t *)blob->fw->data;
4354         fwclen = 0;
4355
4356         /* Validate firmware image by checking version. */
4357         if (blob->fw->size < 8 * sizeof(uint32_t)) {
4358                 qla_printk(KERN_WARNING, ha,
4359                     "Unable to verify integrity of firmware image (%Zd)!\n",
4360                     blob->fw->size);
4361                 goto fail_fw_integrity;
4362         }
4363         for (i = 0; i < 4; i++)
4364                 dcode[i] = be32_to_cpu(fwcode[i + 4]);
4365         if ((dcode[0] == 0xffffffff && dcode[1] == 0xffffffff &&
4366             dcode[2] == 0xffffffff && dcode[3] == 0xffffffff) ||
4367             (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
4368                 dcode[3] == 0)) {
4369                 qla_printk(KERN_WARNING, ha,
4370                     "Unable to verify integrity of firmware image!\n");
4371                 qla_printk(KERN_WARNING, ha,
4372                     "Firmware data: %08x %08x %08x %08x!\n", dcode[0],
4373                     dcode[1], dcode[2], dcode[3]);
4374                 goto fail_fw_integrity;
4375         }
4376
4377         while (segments && rval == QLA_SUCCESS) {
4378                 risc_addr = be32_to_cpu(fwcode[2]);
4379                 *srisc_addr = *srisc_addr == 0 ? risc_addr : *srisc_addr;
4380                 risc_size = be32_to_cpu(fwcode[3]);
4381
4382                 /* Validate firmware image size. */
4383                 fwclen += risc_size * sizeof(uint32_t);
4384                 if (blob->fw->size < fwclen) {
4385                         qla_printk(KERN_WARNING, ha,
4386                             "Unable to verify integrity of firmware image "
4387                             "(%Zd)!\n", blob->fw->size);
4388
4389                         goto fail_fw_integrity;
4390                 }
4391
4392                 fragment = 0;
4393                 while (risc_size > 0 && rval == QLA_SUCCESS) {
4394                         dlen = (uint32_t)(ha->fw_transfer_size >> 2);
4395                         if (dlen > risc_size)
4396                                 dlen = risc_size;
4397
4398                         DEBUG7(printk("scsi(%ld): Loading risc segment@ risc "
4399                             "addr %x, number of dwords 0x%x.\n", vha->host_no,
4400                             risc_addr, dlen));
4401
4402                         for (i = 0; i < dlen; i++)
4403                                 dcode[i] = swab32(fwcode[i]);
4404
4405                         rval = qla2x00_load_ram(vha, req->dma, risc_addr,
4406                             dlen);
4407                         if (rval) {
4408                                 DEBUG(printk("scsi(%ld):[ERROR] Failed to load "
4409                                     "segment %d of firmware\n", vha->host_no,
4410                                     fragment));
4411                                 qla_printk(KERN_WARNING, ha,
4412                                     "[ERROR] Failed to load segment %d of "
4413                                     "firmware\n", fragment);
4414                                 break;
4415                         }
4416
4417                         fwcode += dlen;
4418                         risc_addr += dlen;
4419                         risc_size -= dlen;
4420                         fragment++;
4421                 }
4422
4423                 /* Next segment. */
4424                 segments--;
4425         }
4426         return rval;
4427
4428 fail_fw_integrity:
4429         return QLA_FUNCTION_FAILED;
4430 }
4431
4432 int
4433 qla24xx_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
4434 {
4435         int rval;
4436
4437         if (ql2xfwloadbin == 1)
4438                 return qla81xx_load_risc(vha, srisc_addr);
4439
4440         /*
4441          * FW Load priority:
4442          * 1) Firmware via request-firmware interface (.bin file).
4443          * 2) Firmware residing in flash.
4444          */
4445         rval = qla24xx_load_risc_blob(vha, srisc_addr);
4446         if (rval == QLA_SUCCESS)
4447                 return rval;
4448
4449         return qla24xx_load_risc_flash(vha, srisc_addr,
4450             vha->hw->flt_region_fw);
4451 }
4452
4453 int
4454 qla81xx_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
4455 {
4456         int rval;
4457         struct qla_hw_data *ha = vha->hw;
4458
4459         if (ql2xfwloadbin == 2)
4460                 goto try_blob_fw;
4461
4462         /*
4463          * FW Load priority:
4464          * 1) Firmware residing in flash.
4465          * 2) Firmware via request-firmware interface (.bin file).
4466          * 3) Golden-Firmware residing in flash -- limited operation.
4467          */
4468         rval = qla24xx_load_risc_flash(vha, srisc_addr, ha->flt_region_fw);
4469         if (rval == QLA_SUCCESS)
4470                 return rval;
4471
4472 try_blob_fw:
4473         rval = qla24xx_load_risc_blob(vha, srisc_addr);
4474         if (rval == QLA_SUCCESS || !ha->flt_region_gold_fw)
4475                 return rval;
4476
4477         qla_printk(KERN_ERR, ha,
4478             "FW: Attempting to fallback to golden firmware...\n");
4479         rval = qla24xx_load_risc_flash(vha, srisc_addr, ha->flt_region_gold_fw);
4480         if (rval != QLA_SUCCESS)
4481                 return rval;
4482
4483         qla_printk(KERN_ERR, ha,
4484             "FW: Please update operational firmware...\n");
4485         ha->flags.running_gold_fw = 1;
4486
4487         return rval;
4488 }
4489
4490 void
4491 qla2x00_try_to_stop_firmware(scsi_qla_host_t *vha)
4492 {
4493         int ret, retries;
4494         struct qla_hw_data *ha = vha->hw;
4495
4496         if (ha->flags.pci_channel_io_perm_failure)
4497                 return;
4498         if (!IS_FWI2_CAPABLE(ha))
4499                 return;
4500         if (!ha->fw_major_version)
4501                 return;
4502
4503         ret = qla2x00_stop_firmware(vha);
4504         for (retries = 5; ret != QLA_SUCCESS && ret != QLA_FUNCTION_TIMEOUT &&
4505             ret != QLA_INVALID_COMMAND && retries ; retries--) {
4506                 ha->isp_ops->reset_chip(vha);
4507                 if (ha->isp_ops->chip_diag(vha) != QLA_SUCCESS)
4508                         continue;
4509                 if (qla2x00_setup_chip(vha) != QLA_SUCCESS)
4510                         continue;
4511                 qla_printk(KERN_INFO, ha,
4512                     "Attempting retry of stop-firmware command...\n");
4513                 ret = qla2x00_stop_firmware(vha);
4514         }
4515 }
4516
4517 int
4518 qla24xx_configure_vhba(scsi_qla_host_t *vha)
4519 {
4520         int rval = QLA_SUCCESS;
4521         uint16_t mb[MAILBOX_REGISTER_COUNT];
4522         struct qla_hw_data *ha = vha->hw;
4523         struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
4524         struct req_que *req;
4525         struct rsp_que *rsp;
4526
4527         if (!vha->vp_idx)
4528                 return -EINVAL;
4529
4530         rval = qla2x00_fw_ready(base_vha);
4531         if (ha->flags.cpu_affinity_enabled)
4532                 req = ha->req_q_map[0];
4533         else
4534                 req = vha->req;
4535         rsp = req->rsp;
4536
4537         if (rval == QLA_SUCCESS) {
4538                 clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
4539                 qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL);
4540         }
4541
4542         vha->flags.management_server_logged_in = 0;
4543
4544         /* Login to SNS first */
4545         ha->isp_ops->fabric_login(vha, NPH_SNS, 0xff, 0xff, 0xfc, mb, BIT_1);
4546         if (mb[0] != MBS_COMMAND_COMPLETE) {
4547                 DEBUG15(qla_printk(KERN_INFO, ha,
4548                     "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x "
4549                     "mb[2]=%x mb[6]=%x mb[7]=%x\n", NPH_SNS,
4550                     mb[0], mb[1], mb[2], mb[6], mb[7]));
4551                 return (QLA_FUNCTION_FAILED);
4552         }
4553
4554         atomic_set(&vha->loop_down_timer, 0);
4555         atomic_set(&vha->loop_state, LOOP_UP);
4556         set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
4557         set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
4558         rval = qla2x00_loop_resync(base_vha);
4559
4560         return rval;
4561 }
4562
4563 /* 84XX Support **************************************************************/
4564
4565 static LIST_HEAD(qla_cs84xx_list);
4566 static DEFINE_MUTEX(qla_cs84xx_mutex);
4567
4568 static struct qla_chip_state_84xx *
4569 qla84xx_get_chip(struct scsi_qla_host *vha)
4570 {
4571         struct qla_chip_state_84xx *cs84xx;
4572         struct qla_hw_data *ha = vha->hw;
4573
4574         mutex_lock(&qla_cs84xx_mutex);
4575
4576         /* Find any shared 84xx chip. */
4577         list_for_each_entry(cs84xx, &qla_cs84xx_list, list) {
4578                 if (cs84xx->bus == ha->pdev->bus) {
4579                         kref_get(&cs84xx->kref);
4580                         goto done;
4581                 }
4582         }
4583
4584         cs84xx = kzalloc(sizeof(*cs84xx), GFP_KERNEL);
4585         if (!cs84xx)
4586                 goto done;
4587
4588         kref_init(&cs84xx->kref);
4589         spin_lock_init(&cs84xx->access_lock);
4590         mutex_init(&cs84xx->fw_update_mutex);
4591         cs84xx->bus = ha->pdev->bus;
4592
4593         list_add_tail(&cs84xx->list, &qla_cs84xx_list);
4594 done:
4595         mutex_unlock(&qla_cs84xx_mutex);
4596         return cs84xx;
4597 }
4598
4599 static void
4600 __qla84xx_chip_release(struct kref *kref)
4601 {
4602         struct qla_chip_state_84xx *cs84xx =
4603             container_of(kref, struct qla_chip_state_84xx, kref);
4604
4605         mutex_lock(&qla_cs84xx_mutex);
4606         list_del(&cs84xx->list);
4607         mutex_unlock(&qla_cs84xx_mutex);
4608         kfree(cs84xx);
4609 }
4610
4611 void
4612 qla84xx_put_chip(struct scsi_qla_host *vha)
4613 {
4614         struct qla_hw_data *ha = vha->hw;
4615         if (ha->cs84xx)
4616                 kref_put(&ha->cs84xx->kref, __qla84xx_chip_release);
4617 }
4618
4619 static int
4620 qla84xx_init_chip(scsi_qla_host_t *vha)
4621 {
4622         int rval;
4623         uint16_t status[2];
4624         struct qla_hw_data *ha = vha->hw;
4625
4626         mutex_lock(&ha->cs84xx->fw_update_mutex);
4627
4628         rval = qla84xx_verify_chip(vha, status);
4629
4630         mutex_unlock(&ha->cs84xx->fw_update_mutex);
4631
4632         return rval != QLA_SUCCESS || status[0] ? QLA_FUNCTION_FAILED:
4633             QLA_SUCCESS;
4634 }
4635
4636 /* 81XX Support **************************************************************/
4637
4638 int
4639 qla81xx_nvram_config(scsi_qla_host_t *vha)
4640 {
4641         int   rval;
4642         struct init_cb_81xx *icb;
4643         struct nvram_81xx *nv;
4644         uint32_t *dptr;
4645         uint8_t  *dptr1, *dptr2;
4646         uint32_t chksum;
4647         uint16_t cnt;
4648         struct qla_hw_data *ha = vha->hw;
4649
4650         rval = QLA_SUCCESS;
4651         icb = (struct init_cb_81xx *)ha->init_cb;
4652         nv = ha->nvram;
4653
4654         /* Determine NVRAM starting address. */
4655         ha->nvram_size = sizeof(struct nvram_81xx);
4656         ha->vpd_size = FA_NVRAM_VPD_SIZE;
4657
4658         /* Get VPD data into cache */
4659         ha->vpd = ha->nvram + VPD_OFFSET;
4660         ha->isp_ops->read_optrom(vha, ha->vpd, ha->flt_region_vpd << 2,
4661             ha->vpd_size);
4662
4663         /* Get NVRAM data into cache and calculate checksum. */
4664         ha->isp_ops->read_optrom(vha, ha->nvram, ha->flt_region_nvram << 2,
4665             ha->nvram_size);
4666         dptr = (uint32_t *)nv;
4667         for (cnt = 0, chksum = 0; cnt < ha->nvram_size >> 2; cnt++)
4668                 chksum += le32_to_cpu(*dptr++);
4669
4670         DEBUG5(printk("scsi(%ld): Contents of NVRAM\n", vha->host_no));
4671         DEBUG5(qla2x00_dump_buffer((uint8_t *)nv, ha->nvram_size));
4672
4673         /* Bad NVRAM data, set defaults parameters. */
4674         if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' || nv->id[2] != 'P'
4675             || nv->id[3] != ' ' ||
4676             nv->nvram_version < __constant_cpu_to_le16(ICB_VERSION)) {
4677                 /* Reset NVRAM data. */
4678                 qla_printk(KERN_WARNING, ha, "Inconsistent NVRAM detected: "
4679                     "checksum=0x%x id=%c version=0x%x.\n", chksum, nv->id[0],
4680                     le16_to_cpu(nv->nvram_version));
4681                 qla_printk(KERN_WARNING, ha, "Falling back to functioning (yet "
4682                     "invalid -- WWPN) defaults.\n");
4683
4684                 /*
4685                  * Set default initialization control block.
4686                  */
4687                 memset(nv, 0, ha->nvram_size);
4688                 nv->nvram_version = __constant_cpu_to_le16(ICB_VERSION);
4689                 nv->version = __constant_cpu_to_le16(ICB_VERSION);
4690                 nv->frame_payload_size = __constant_cpu_to_le16(2048);
4691                 nv->execution_throttle = __constant_cpu_to_le16(0xFFFF);
4692                 nv->exchange_count = __constant_cpu_to_le16(0);
4693                 nv->port_name[0] = 0x21;
4694                 nv->port_name[1] = 0x00 + ha->port_no;
4695                 nv->port_name[2] = 0x00;
4696                 nv->port_name[3] = 0xe0;
4697                 nv->port_name[4] = 0x8b;
4698                 nv->port_name[5] = 0x1c;
4699                 nv->port_name[6] = 0x55;
4700                 nv->port_name[7] = 0x86;
4701                 nv->node_name[0] = 0x20;
4702                 nv->node_name[1] = 0x00;
4703                 nv->node_name[2] = 0x00;
4704                 nv->node_name[3] = 0xe0;
4705                 nv->node_name[4] = 0x8b;
4706                 nv->node_name[5] = 0x1c;
4707                 nv->node_name[6] = 0x55;
4708                 nv->node_name[7] = 0x86;
4709                 nv->login_retry_count = __constant_cpu_to_le16(8);
4710                 nv->interrupt_delay_timer = __constant_cpu_to_le16(0);
4711                 nv->login_timeout = __constant_cpu_to_le16(0);
4712                 nv->firmware_options_1 =
4713                     __constant_cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1);
4714                 nv->firmware_options_2 = __constant_cpu_to_le32(2 << 4);
4715                 nv->firmware_options_2 |= __constant_cpu_to_le32(BIT_12);
4716                 nv->firmware_options_3 = __constant_cpu_to_le32(2 << 13);
4717                 nv->host_p = __constant_cpu_to_le32(BIT_11|BIT_10);
4718                 nv->efi_parameters = __constant_cpu_to_le32(0);
4719                 nv->reset_delay = 5;
4720                 nv->max_luns_per_target = __constant_cpu_to_le16(128);
4721                 nv->port_down_retry_count = __constant_cpu_to_le16(30);
4722                 nv->link_down_timeout = __constant_cpu_to_le16(30);
4723                 nv->enode_mac[0] = 0x00;
4724                 nv->enode_mac[1] = 0x02;
4725                 nv->enode_mac[2] = 0x03;
4726                 nv->enode_mac[3] = 0x04;
4727                 nv->enode_mac[4] = 0x05;
4728                 nv->enode_mac[5] = 0x06 + ha->port_no;
4729
4730                 rval = 1;
4731         }
4732
4733         /* Reset Initialization control block */
4734         memset(icb, 0, sizeof(struct init_cb_81xx));
4735
4736         /* Copy 1st segment. */
4737         dptr1 = (uint8_t *)icb;
4738         dptr2 = (uint8_t *)&nv->version;
4739         cnt = (uint8_t *)&icb->response_q_inpointer - (uint8_t *)&icb->version;
4740         while (cnt--)
4741                 *dptr1++ = *dptr2++;
4742
4743         icb->login_retry_count = nv->login_retry_count;
4744
4745         /* Copy 2nd segment. */
4746         dptr1 = (uint8_t *)&icb->interrupt_delay_timer;
4747         dptr2 = (uint8_t *)&nv->interrupt_delay_timer;
4748         cnt = (uint8_t *)&icb->reserved_5 -
4749             (uint8_t *)&icb->interrupt_delay_timer;
4750         while (cnt--)
4751                 *dptr1++ = *dptr2++;
4752
4753         memcpy(icb->enode_mac, nv->enode_mac, sizeof(icb->enode_mac));
4754         /* Some boards (with valid NVRAMs) still have NULL enode_mac!! */
4755         if (!memcmp(icb->enode_mac, "\0\0\0\0\0\0", sizeof(icb->enode_mac))) {
4756                 icb->enode_mac[0] = 0x01;
4757                 icb->enode_mac[1] = 0x02;
4758                 icb->enode_mac[2] = 0x03;
4759                 icb->enode_mac[3] = 0x04;
4760                 icb->enode_mac[4] = 0x05;
4761                 icb->enode_mac[5] = 0x06 + ha->port_no;
4762         }
4763
4764         /* Use extended-initialization control block. */
4765         memcpy(ha->ex_init_cb, &nv->ex_version, sizeof(*ha->ex_init_cb));
4766
4767         /*
4768          * Setup driver NVRAM options.
4769          */
4770         qla2x00_set_model_info(vha, nv->model_name, sizeof(nv->model_name),
4771             "QLE81XX");
4772
4773         /* Use alternate WWN? */
4774         if (nv->host_p & __constant_cpu_to_le32(BIT_15)) {
4775                 memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
4776                 memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
4777         }
4778
4779         /* Prepare nodename */
4780         if ((icb->firmware_options_1 & __constant_cpu_to_le32(BIT_14)) == 0) {
4781                 /*
4782                  * Firmware will apply the following mask if the nodename was
4783                  * not provided.
4784                  */
4785                 memcpy(icb->node_name, icb->port_name, WWN_SIZE);
4786                 icb->node_name[0] &= 0xF0;
4787         }
4788
4789         /* Set host adapter parameters. */
4790         ha->flags.disable_risc_code_load = 0;
4791         ha->flags.enable_lip_reset = 0;
4792         ha->flags.enable_lip_full_login =
4793             le32_to_cpu(nv->host_p) & BIT_10 ? 1: 0;
4794         ha->flags.enable_target_reset =
4795             le32_to_cpu(nv->host_p) & BIT_11 ? 1: 0;
4796         ha->flags.enable_led_scheme = 0;
4797         ha->flags.disable_serdes = le32_to_cpu(nv->host_p) & BIT_5 ? 1: 0;
4798
4799         ha->operating_mode = (le32_to_cpu(icb->firmware_options_2) &
4800             (BIT_6 | BIT_5 | BIT_4)) >> 4;
4801
4802         /* save HBA serial number */
4803         ha->serial0 = icb->port_name[5];
4804         ha->serial1 = icb->port_name[6];
4805         ha->serial2 = icb->port_name[7];
4806         memcpy(vha->node_name, icb->node_name, WWN_SIZE);
4807         memcpy(vha->port_name, icb->port_name, WWN_SIZE);
4808
4809         icb->execution_throttle = __constant_cpu_to_le16(0xFFFF);
4810
4811         ha->retry_count = le16_to_cpu(nv->login_retry_count);
4812
4813         /* Set minimum login_timeout to 4 seconds. */
4814         if (le16_to_cpu(nv->login_timeout) < ql2xlogintimeout)
4815                 nv->login_timeout = cpu_to_le16(ql2xlogintimeout);
4816         if (le16_to_cpu(nv->login_timeout) < 4)
4817                 nv->login_timeout = __constant_cpu_to_le16(4);
4818         ha->login_timeout = le16_to_cpu(nv->login_timeout);
4819         icb->login_timeout = nv->login_timeout;
4820
4821         /* Set minimum RATOV to 100 tenths of a second. */
4822         ha->r_a_tov = 100;
4823
4824         ha->loop_reset_delay = nv->reset_delay;
4825
4826         /* Link Down Timeout = 0:
4827          *
4828          *      When Port Down timer expires we will start returning
4829          *      I/O's to OS with "DID_NO_CONNECT".
4830          *
4831          * Link Down Timeout != 0:
4832          *
4833          *       The driver waits for the link to come up after link down
4834          *       before returning I/Os to OS with "DID_NO_CONNECT".
4835          */
4836         if (le16_to_cpu(nv->link_down_timeout) == 0) {
4837                 ha->loop_down_abort_time =
4838                     (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
4839         } else {
4840                 ha->link_down_timeout = le16_to_cpu(nv->link_down_timeout);
4841                 ha->loop_down_abort_time =
4842                     (LOOP_DOWN_TIME - ha->link_down_timeout);
4843         }
4844
4845         /* Need enough time to try and get the port back. */
4846         ha->port_down_retry_count = le16_to_cpu(nv->port_down_retry_count);
4847         if (qlport_down_retry)
4848                 ha->port_down_retry_count = qlport_down_retry;
4849
4850         /* Set login_retry_count */
4851         ha->login_retry_count  = le16_to_cpu(nv->login_retry_count);
4852         if (ha->port_down_retry_count ==
4853             le16_to_cpu(nv->port_down_retry_count) &&
4854             ha->port_down_retry_count > 3)
4855                 ha->login_retry_count = ha->port_down_retry_count;
4856         else if (ha->port_down_retry_count > (int)ha->login_retry_count)
4857                 ha->login_retry_count = ha->port_down_retry_count;
4858         if (ql2xloginretrycount)
4859                 ha->login_retry_count = ql2xloginretrycount;
4860
4861         /* Enable ZIO. */
4862         if (!vha->flags.init_done) {
4863                 ha->zio_mode = le32_to_cpu(icb->firmware_options_2) &
4864                     (BIT_3 | BIT_2 | BIT_1 | BIT_0);
4865                 ha->zio_timer = le16_to_cpu(icb->interrupt_delay_timer) ?
4866                     le16_to_cpu(icb->interrupt_delay_timer): 2;
4867         }
4868         icb->firmware_options_2 &= __constant_cpu_to_le32(
4869             ~(BIT_3 | BIT_2 | BIT_1 | BIT_0));
4870         vha->flags.process_response_queue = 0;
4871         if (ha->zio_mode != QLA_ZIO_DISABLED) {
4872                 ha->zio_mode = QLA_ZIO_MODE_6;
4873
4874                 DEBUG2(printk("scsi(%ld): ZIO mode %d enabled; timer delay "
4875                     "(%d us).\n", vha->host_no, ha->zio_mode,
4876                     ha->zio_timer * 100));
4877                 qla_printk(KERN_INFO, ha,
4878                     "ZIO mode %d enabled; timer delay (%d us).\n",
4879                     ha->zio_mode, ha->zio_timer * 100);
4880
4881                 icb->firmware_options_2 |= cpu_to_le32(
4882                     (uint32_t)ha->zio_mode);
4883                 icb->interrupt_delay_timer = cpu_to_le16(ha->zio_timer);
4884                 vha->flags.process_response_queue = 1;
4885         }
4886
4887         if (rval) {
4888                 DEBUG2_3(printk(KERN_WARNING
4889                     "scsi(%ld): NVRAM configuration failed!\n", vha->host_no));
4890         }
4891         return (rval);
4892 }
4893
4894 void
4895 qla81xx_update_fw_options(scsi_qla_host_t *ha)
4896 {
4897 }