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

   1 /*
   2  * QLogic Fibre Channel HBA Driver
   3  * Copyright (c)  2003-2008 QLogic Corporation
   4  *
   5  * See LICENSE.qla2xxx for copyright and licensing details.
   6  */
   7 #include "qla_def.h"
   8
   9 #include <linux/delay.h>
  10 #include <linux/vmalloc.h>
  11
  12 #include "qla_devtbl.h"
  13
  14 #ifdef CONFIG_SPARC
  15 #include <asm/prom.h>
  16 #endif
  17
  18 /*
  19 *  QLogic ISP2x00 Hardware Support Function Prototypes.
  20 */
  21 static int qla2x00_isp_firmware(scsi_qla_host_t *);
  22 static void qla2x00_resize_request_q(scsi_qla_host_t *);
  23 static int qla2x00_setup_chip(scsi_qla_host_t *);
  24 static void qla2x00_init_response_q_entries(scsi_qla_host_t *);
  25 static int qla2x00_init_rings(scsi_qla_host_t *);
  26 static int qla2x00_fw_ready(scsi_qla_host_t *);
  27 static int qla2x00_configure_hba(scsi_qla_host_t *);
  28 static int qla2x00_configure_loop(scsi_qla_host_t *);
  29 static int qla2x00_configure_local_loop(scsi_qla_host_t *);
  30 static int qla2x00_configure_fabric(scsi_qla_host_t *);
  31 static int qla2x00_find_all_fabric_devs(scsi_qla_host_t *, struct list_head *);
  32 static int qla2x00_device_resync(scsi_qla_host_t *);
  33 static int qla2x00_fabric_dev_login(scsi_qla_host_t *, fc_port_t *,
  34     uint16_t *);
  35
  36 static int qla2x00_restart_isp(scsi_qla_host_t *);
  37
  38 static int qla2x00_find_new_loop_id(scsi_qla_host_t *ha, fc_port_t *dev);
  39
  40 static struct qla_chip_state_84xx *qla84xx_get_chip(struct scsi_qla_host *);
  41 static int qla84xx_init_chip(scsi_qla_host_t *);
  42
  43 /****************************************************************************/
  44 /*                QLogic ISP2x00 Hardware Support Functions.                */
  45 /****************************************************************************/
  46
  47 /*
  48 * qla2x00_initialize_adapter
  49 *      Initialize board.
  50 *
  51 * Input:
  52 *      ha = adapter block pointer.
  53 *
  54 * Returns:
  55 *      0 = success
  56 */
  57 int
  58 qla2x00_initialize_adapter(scsi_qla_host_t *ha)
  59 {
  60         int     rval;
  61
  62         /* Clear adapter flags. */
  63         ha->flags.online = 0;
  64         ha->flags.reset_active = 0;
  65         atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
  66         atomic_set(&ha->loop_state, LOOP_DOWN);
  67         ha->device_flags = DFLG_NO_CABLE;
  68         ha->dpc_flags = 0;
  69         ha->flags.management_server_logged_in = 0;
  70         ha->marker_needed = 0;
  71         ha->mbx_flags = 0;
  72         ha->isp_abort_cnt = 0;
  73         ha->beacon_blink_led = 0;
  74         set_bit(REGISTER_FDMI_NEEDED, &ha->dpc_flags);
  75
  76         qla_printk(KERN_INFO, ha, "Configuring PCI space...\n");
  77         rval = ha->isp_ops->pci_config(ha);
  78         if (rval) {
  79                 DEBUG2(printk("scsi(%ld): Unable to configure PCI space.\n",
  80                     ha->host_no));
  81                 return (rval);
  82         }
  83
  84         ha->isp_ops->reset_chip(ha);
  85
  86         ha->isp_ops->get_flash_version(ha, ha->request_ring);
  87
  88         qla_printk(KERN_INFO, ha, "Configure NVRAM parameters...\n");
  89
  90         ha->isp_ops->nvram_config(ha);
  91
  92         if (ha->flags.disable_serdes) {
  93                 /* Mask HBA via NVRAM settings? */
  94                 qla_printk(KERN_INFO, ha, "Masking HBA WWPN "
  95                     "%02x%02x%02x%02x%02x%02x%02x%02x (via NVRAM).\n",
  96                     ha->port_name[0], ha->port_name[1],
  97                     ha->port_name[2], ha->port_name[3],
  98                     ha->port_name[4], ha->port_name[5],
  99                     ha->port_name[6], ha->port_name[7]);
 100                 return QLA_FUNCTION_FAILED;
 101         }
 102
 103         qla_printk(KERN_INFO, ha, "Verifying loaded RISC code...\n");
 104
 105         if (qla2x00_isp_firmware(ha) != QLA_SUCCESS) {
 106                 rval = ha->isp_ops->chip_diag(ha);
 107                 if (rval)
 108                         return (rval);
 109                 rval = qla2x00_setup_chip(ha);
 110                 if (rval)
 111                         return (rval);
 112                 qla2xxx_get_flash_info(ha);
 113         }
 114         if (IS_QLA84XX(ha)) {
 115                 ha->cs84xx = qla84xx_get_chip(ha);
 116                 if (!ha->cs84xx) {
 117                         qla_printk(KERN_ERR, ha,
 118                             "Unable to configure ISP84XX.\n");
 119                         return QLA_FUNCTION_FAILED;
 120                 }
 121         }
 122         rval = qla2x00_init_rings(ha);
 123
 124         return (rval);
 125 }
 126
 127 /**
 128  * qla2100_pci_config() - Setup ISP21xx PCI configuration registers.
 129  * @ha: HA context
 130  *
 131  * Returns 0 on success.
 132  */
 133 int
 134 qla2100_pci_config(scsi_qla_host_t *ha)
 135 {
 136         uint16_t w;
 137         uint32_t d;
 138         unsigned long flags;
 139         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 140
 141         pci_set_master(ha->pdev);
 142         pci_try_set_mwi(ha->pdev);
 143
 144         pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
 145         w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
 146         pci_write_config_word(ha->pdev, PCI_COMMAND, w);
 147
 148         /* Reset expansion ROM address decode enable */
 149         pci_read_config_dword(ha->pdev, PCI_ROM_ADDRESS, &d);
 150         d &= ~PCI_ROM_ADDRESS_ENABLE;
 151         pci_write_config_dword(ha->pdev, PCI_ROM_ADDRESS, d);
 152
 153         /* Get PCI bus information. */
 154         spin_lock_irqsave(&ha->hardware_lock, flags);
 155         ha->pci_attr = RD_REG_WORD(&reg->ctrl_status);
 156         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 157
 158         return QLA_SUCCESS;
 159 }
 160
 161 /**
 162  * qla2300_pci_config() - Setup ISP23xx PCI configuration registers.
 163  * @ha: HA context
 164  *
 165  * Returns 0 on success.
 166  */
 167 int
 168 qla2300_pci_config(scsi_qla_host_t *ha)
 169 {
 170         uint16_t        w;
 171         uint32_t        d;
 172         unsigned long   flags = 0;
 173         uint32_t        cnt;
 174         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 175
 176         pci_set_master(ha->pdev);
 177         pci_try_set_mwi(ha->pdev);
 178
 179         pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
 180         w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
 181
 182         if (IS_QLA2322(ha) || IS_QLA6322(ha))
 183                 w &= ~PCI_COMMAND_INTX_DISABLE;
 184         pci_write_config_word(ha->pdev, PCI_COMMAND, w);
 185
 186         /*
 187          * If this is a 2300 card and not 2312, reset the
 188          * COMMAND_INVALIDATE due to a bug in the 2300. Unfortunately,
 189          * the 2310 also reports itself as a 2300 so we need to get the
 190          * fb revision level -- a 6 indicates it really is a 2300 and
 191          * not a 2310.
 192          */
 193         if (IS_QLA2300(ha)) {
 194                 spin_lock_irqsave(&ha->hardware_lock, flags);
 195
 196                 /* Pause RISC. */
 197                 WRT_REG_WORD(&reg->hccr, HCCR_PAUSE_RISC);
 198                 for (cnt = 0; cnt < 30000; cnt++) {
 199                         if ((RD_REG_WORD(&reg->hccr) & HCCR_RISC_PAUSE) != 0)
 200                                 break;
 201
 202                         udelay(10);
 203                 }
 204
 205                 /* Select FPM registers. */
 206                 WRT_REG_WORD(&reg->ctrl_status, 0x20);
 207                 RD_REG_WORD(&reg->ctrl_status);
 208
 209                 /* Get the fb rev level */
 210                 ha->fb_rev = RD_FB_CMD_REG(ha, reg);
 211
 212                 if (ha->fb_rev == FPM_2300)
 213                         pci_clear_mwi(ha->pdev);
 214
 215                 /* Deselect FPM registers. */
 216                 WRT_REG_WORD(&reg->ctrl_status, 0x0);
 217                 RD_REG_WORD(&reg->ctrl_status);
 218
 219                 /* Release RISC module. */
 220                 WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
 221                 for (cnt = 0; cnt < 30000; cnt++) {
 222                         if ((RD_REG_WORD(&reg->hccr) & HCCR_RISC_PAUSE) == 0)
 223                                 break;
 224
 225                         udelay(10);
 226                 }
 227
 228                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 229         }
 230
 231         pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);
 232
 233         /* Reset expansion ROM address decode enable */
 234         pci_read_config_dword(ha->pdev, PCI_ROM_ADDRESS, &d);
 235         d &= ~PCI_ROM_ADDRESS_ENABLE;
 236         pci_write_config_dword(ha->pdev, PCI_ROM_ADDRESS, d);
 237
 238         /* Get PCI bus information. */
 239         spin_lock_irqsave(&ha->hardware_lock, flags);
 240         ha->pci_attr = RD_REG_WORD(&reg->ctrl_status);
 241         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 242
 243         return QLA_SUCCESS;
 244 }
 245
 246 /**
 247  * qla24xx_pci_config() - Setup ISP24xx PCI configuration registers.
 248  * @ha: HA context
 249  *
 250  * Returns 0 on success.
 251  */
 252 int
 253 qla24xx_pci_config(scsi_qla_host_t *ha)
 254 {
 255         uint16_t w;
 256         uint32_t d;
 257         unsigned long flags = 0;
 258         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
 259
 260         pci_set_master(ha->pdev);
 261         pci_try_set_mwi(ha->pdev);
 262
 263         pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
 264         w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
 265         w &= ~PCI_COMMAND_INTX_DISABLE;
 266         pci_write_config_word(ha->pdev, PCI_COMMAND, w);
 267
 268         pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);
 269
 270         /* PCI-X -- adjust Maximum Memory Read Byte Count (2048). */
 271         if (pci_find_capability(ha->pdev, PCI_CAP_ID_PCIX))
 272                 pcix_set_mmrbc(ha->pdev, 2048);
 273
 274         /* PCIe -- adjust Maximum Read Request Size (2048). */
 275         if (pci_find_capability(ha->pdev, PCI_CAP_ID_EXP))
 276                 pcie_set_readrq(ha->pdev, 2048);
 277
 278         /* Reset expansion ROM address decode enable */
 279         pci_read_config_dword(ha->pdev, PCI_ROM_ADDRESS, &d);
 280         d &= ~PCI_ROM_ADDRESS_ENABLE;
 281         pci_write_config_dword(ha->pdev, PCI_ROM_ADDRESS, d);
 282
 283         ha->chip_revision = ha->pdev->revision;
 284
 285         /* Get PCI bus information. */
 286         spin_lock_irqsave(&ha->hardware_lock, flags);
 287         ha->pci_attr = RD_REG_DWORD(&reg->ctrl_status);
 288         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 289
 290         return QLA_SUCCESS;
 291 }
 292
 293 /**
 294  * qla25xx_pci_config() - Setup ISP25xx PCI configuration registers.
 295  * @ha: HA context
 296  *
 297  * Returns 0 on success.
 298  */
 299 int
 300 qla25xx_pci_config(scsi_qla_host_t *ha)
 301 {
 302         uint16_t w;
 303         uint32_t d;
 304
 305         pci_set_master(ha->pdev);
 306         pci_try_set_mwi(ha->pdev);
 307
 308         pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
 309         w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
 310         w &= ~PCI_COMMAND_INTX_DISABLE;
 311         pci_write_config_word(ha->pdev, PCI_COMMAND, w);
 312
 313         /* PCIe -- adjust Maximum Read Request Size (2048). */
 314         if (pci_find_capability(ha->pdev, PCI_CAP_ID_EXP))
 315                 pcie_set_readrq(ha->pdev, 2048);
 316
 317         /* Reset expansion ROM address decode enable */
 318         pci_read_config_dword(ha->pdev, PCI_ROM_ADDRESS, &d);
 319         d &= ~PCI_ROM_ADDRESS_ENABLE;
 320         pci_write_config_dword(ha->pdev, PCI_ROM_ADDRESS, d);
 321
 322         ha->chip_revision = ha->pdev->revision;
 323
 324         return QLA_SUCCESS;
 325 }
 326
 327 /**
 328  * qla2x00_isp_firmware() - Choose firmware image.
 329  * @ha: HA context
 330  *
 331  * Returns 0 on success.
 332  */
 333 static int
 334 qla2x00_isp_firmware(scsi_qla_host_t *ha)
 335 {
 336         int  rval;
 337         uint16_t loop_id, topo, sw_cap;
 338         uint8_t domain, area, al_pa;
 339
 340         /* Assume loading risc code */
 341         rval = QLA_FUNCTION_FAILED;
 342
 343         if (ha->flags.disable_risc_code_load) {
 344                 DEBUG2(printk("scsi(%ld): RISC CODE NOT loaded\n",
 345                     ha->host_no));
 346                 qla_printk(KERN_INFO, ha, "RISC CODE NOT loaded\n");
 347
 348                 /* Verify checksum of loaded RISC code. */
 349                 rval = qla2x00_verify_checksum(ha, ha->fw_srisc_address);
 350                 if (rval == QLA_SUCCESS) {
 351                         /* And, verify we are not in ROM code. */
 352                         rval = qla2x00_get_adapter_id(ha, &loop_id, &al_pa,
 353                             &area, &domain, &topo, &sw_cap);
 354                 }
 355         }
 356
 357         if (rval) {
 358                 DEBUG2_3(printk("scsi(%ld): **** Load RISC code ****\n",
 359                     ha->host_no));
 360         }
 361
 362         return (rval);
 363 }
 364
 365 /**
 366  * qla2x00_reset_chip() - Reset ISP chip.
 367  * @ha: HA context
 368  *
 369  * Returns 0 on success.
 370  */
 371 void
 372 qla2x00_reset_chip(scsi_qla_host_t *ha)
 373 {
 374         unsigned long   flags = 0;
 375         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 376         uint32_t        cnt;
 377         uint16_t        cmd;
 378
 379         ha->isp_ops->disable_intrs(ha);
 380
 381         spin_lock_irqsave(&ha->hardware_lock, flags);
 382
 383         /* Turn off master enable */
 384         cmd = 0;
 385         pci_read_config_word(ha->pdev, PCI_COMMAND, &cmd);
 386         cmd &= ~PCI_COMMAND_MASTER;
 387         pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
 388
 389         if (!IS_QLA2100(ha)) {
 390                 /* Pause RISC. */
 391                 WRT_REG_WORD(&reg->hccr, HCCR_PAUSE_RISC);
 392                 if (IS_QLA2200(ha) || IS_QLA2300(ha)) {
 393                         for (cnt = 0; cnt < 30000; cnt++) {
 394                                 if ((RD_REG_WORD(&reg->hccr) &
 395                                     HCCR_RISC_PAUSE) != 0)
 396                                         break;
 397                                 udelay(100);
 398                         }
 399                 } else {
 400                         RD_REG_WORD(&reg->hccr);        /* PCI Posting. */
 401                         udelay(10);
 402                 }
 403
 404                 /* Select FPM registers. */
 405                 WRT_REG_WORD(&reg->ctrl_status, 0x20);
 406                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
 407
 408                 /* FPM Soft Reset. */
 409                 WRT_REG_WORD(&reg->fpm_diag_config, 0x100);
 410                 RD_REG_WORD(&reg->fpm_diag_config);     /* PCI Posting. */
 411
 412                 /* Toggle Fpm Reset. */
 413                 if (!IS_QLA2200(ha)) {
 414                         WRT_REG_WORD(&reg->fpm_diag_config, 0x0);
 415                         RD_REG_WORD(&reg->fpm_diag_config); /* PCI Posting. */
 416                 }
 417
 418                 /* Select frame buffer registers. */
 419                 WRT_REG_WORD(&reg->ctrl_status, 0x10);
 420                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
 421
 422                 /* Reset frame buffer FIFOs. */
 423                 if (IS_QLA2200(ha)) {
 424                         WRT_FB_CMD_REG(ha, reg, 0xa000);
 425                         RD_FB_CMD_REG(ha, reg);         /* PCI Posting. */
 426                 } else {
 427                         WRT_FB_CMD_REG(ha, reg, 0x00fc);
 428
 429                         /* Read back fb_cmd until zero or 3 seconds max */
 430                         for (cnt = 0; cnt < 3000; cnt++) {
 431                                 if ((RD_FB_CMD_REG(ha, reg) & 0xff) == 0)
 432                                         break;
 433                                 udelay(100);
 434                         }
 435                 }
 436
 437                 /* Select RISC module registers. */
 438                 WRT_REG_WORD(&reg->ctrl_status, 0);
 439                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
 440
 441                 /* Reset RISC processor. */
 442                 WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
 443                 RD_REG_WORD(&reg->hccr);                /* PCI Posting. */
 444
 445                 /* Release RISC processor. */
 446                 WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
 447                 RD_REG_WORD(&reg->hccr);                /* PCI Posting. */
 448         }
 449
 450         WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
 451         WRT_REG_WORD(&reg->hccr, HCCR_CLR_HOST_INT);
 452
 453         /* Reset ISP chip. */
 454         WRT_REG_WORD(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
 455
 456         /* Wait for RISC to recover from reset. */
 457         if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
 458                 /*
 459                  * It is necessary to for a delay here since the card doesn't
 460                  * respond to PCI reads during a reset. On some architectures
 461                  * this will result in an MCA.
 462                  */
 463                 udelay(20);
 464                 for (cnt = 30000; cnt; cnt--) {
 465                         if ((RD_REG_WORD(&reg->ctrl_status) &
 466                             CSR_ISP_SOFT_RESET) == 0)
 467                                 break;
 468                         udelay(100);
 469                 }
 470         } else
 471                 udelay(10);
 472
 473         /* Reset RISC processor. */
 474         WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
 475
 476         WRT_REG_WORD(&reg->semaphore, 0);
 477
 478         /* Release RISC processor. */
 479         WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
 480         RD_REG_WORD(&reg->hccr);                        /* PCI Posting. */
 481
 482         if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
 483                 for (cnt = 0; cnt < 30000; cnt++) {
 484                         if (RD_MAILBOX_REG(ha, reg, 0) != MBS_BUSY)
 485                                 break;
 486
 487                         udelay(100);
 488                 }
 489         } else
 490                 udelay(100);
 491
 492         /* Turn on master enable */
 493         cmd |= PCI_COMMAND_MASTER;
 494         pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
 495
 496         /* Disable RISC pause on FPM parity error. */
 497         if (!IS_QLA2100(ha)) {
 498                 WRT_REG_WORD(&reg->hccr, HCCR_DISABLE_PARITY_PAUSE);
 499                 RD_REG_WORD(&reg->hccr);                /* PCI Posting. */
 500         }
 501
 502         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 503 }
 504
 505 /**
 506  * qla24xx_reset_risc() - Perform full reset of ISP24xx RISC.
 507  * @ha: HA context
 508  *
 509  * Returns 0 on success.
 510  */
 511 static inline void
 512 qla24xx_reset_risc(scsi_qla_host_t *ha)
 513 {
 514         int hw_evt = 0;
 515         unsigned long flags = 0;
 516         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
 517         uint32_t cnt, d2;
 518         uint16_t wd;
 519
 520         spin_lock_irqsave(&ha->hardware_lock, flags);
 521
 522         /* Reset RISC. */
 523         WRT_REG_DWORD(&reg->ctrl_status, CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
 524         for (cnt = 0; cnt < 30000; cnt++) {
 525                 if ((RD_REG_DWORD(&reg->ctrl_status) & CSRX_DMA_ACTIVE) == 0)
 526                         break;
 527
 528                 udelay(10);
 529         }
 530
 531         WRT_REG_DWORD(&reg->ctrl_status,
 532             CSRX_ISP_SOFT_RESET|CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
 533         pci_read_config_word(ha->pdev, PCI_COMMAND, &wd);
 534
 535         udelay(100);
 536         /* Wait for firmware to complete NVRAM accesses. */
 537         d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
 538         for (cnt = 10000 ; cnt && d2; cnt--) {
 539                 udelay(5);
 540                 d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
 541                 barrier();
 542         }
 543         if (cnt == 0)
 544                 hw_evt = 1;
 545
 546         /* Wait for soft-reset to complete. */
 547         d2 = RD_REG_DWORD(&reg->ctrl_status);
 548         for (cnt = 6000000 ; cnt && (d2 & CSRX_ISP_SOFT_RESET); cnt--) {
 549                 udelay(5);
 550                 d2 = RD_REG_DWORD(&reg->ctrl_status);
 551                 barrier();
 552         }
 553         if (cnt == 0 || hw_evt)
 554                 qla2xxx_hw_event_log(ha, HW_EVENT_RESET_ERR,
 555                     RD_REG_WORD(&reg->mailbox1), RD_REG_WORD(&reg->mailbox2),
 556                     RD_REG_WORD(&reg->mailbox3));
 557
 558         WRT_REG_DWORD(&reg->hccr, HCCRX_SET_RISC_RESET);
 559         RD_REG_DWORD(&reg->hccr);
 560
 561         WRT_REG_DWORD(&reg->hccr, HCCRX_REL_RISC_PAUSE);
 562         RD_REG_DWORD(&reg->hccr);
 563
 564         WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_RESET);
 565         RD_REG_DWORD(&reg->hccr);
 566
 567         d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
 568         for (cnt = 6000000 ; cnt && d2; cnt--) {
 569                 udelay(5);
 570                 d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
 571                 barrier();
 572         }
 573
 574         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 575 }
 576
 577 /**
 578  * qla24xx_reset_chip() - Reset ISP24xx chip.
 579  * @ha: HA context
 580  *
 581  * Returns 0 on success.
 582  */
 583 void
 584 qla24xx_reset_chip(scsi_qla_host_t *ha)
 585 {
 586         ha->isp_ops->disable_intrs(ha);
 587
 588         /* Perform RISC reset. */
 589         qla24xx_reset_risc(ha);
 590 }
 591
 592 /**
 593  * qla2x00_chip_diag() - Test chip for proper operation.
 594  * @ha: HA context
 595  *
 596  * Returns 0 on success.
 597  */
 598 int
 599 qla2x00_chip_diag(scsi_qla_host_t *ha)
 600 {
 601         int             rval;
 602         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 603         unsigned long   flags = 0;
 604         uint16_t        data;
 605         uint32_t        cnt;
 606         uint16_t        mb[5];
 607
 608         /* Assume a failed state */
 609         rval = QLA_FUNCTION_FAILED;
 610
 611         DEBUG3(printk("scsi(%ld): Testing device at %lx.\n",
 612             ha->host_no, (u_long)&reg->flash_address));
 613
 614         spin_lock_irqsave(&ha->hardware_lock, flags);
 615
 616         /* Reset ISP chip. */
 617         WRT_REG_WORD(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
 618
 619         /*
 620          * We need to have a delay here since the card will not respond while
 621          * in reset causing an MCA on some architectures.
 622          */
 623         udelay(20);
 624         data = qla2x00_debounce_register(&reg->ctrl_status);
 625         for (cnt = 6000000 ; cnt && (data & CSR_ISP_SOFT_RESET); cnt--) {
 626                 udelay(5);
 627                 data = RD_REG_WORD(&reg->ctrl_status);
 628                 barrier();
 629         }
 630
 631         if (!cnt)
 632                 goto chip_diag_failed;
 633
 634         DEBUG3(printk("scsi(%ld): Reset register cleared by chip reset\n",
 635             ha->host_no));
 636
 637         /* Reset RISC processor. */
 638         WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
 639         WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
 640
 641         /* Workaround for QLA2312 PCI parity error */
 642         if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
 643                 data = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 0));
 644                 for (cnt = 6000000; cnt && (data == MBS_BUSY); cnt--) {
 645                         udelay(5);
 646                         data = RD_MAILBOX_REG(ha, reg, 0);
 647                         barrier();
 648                 }
 649         } else
 650                 udelay(10);
 651
 652         if (!cnt)
 653                 goto chip_diag_failed;
 654
 655         /* Check product ID of chip */
 656         DEBUG3(printk("scsi(%ld): Checking product ID of chip\n", ha->host_no));
 657
 658         mb[1] = RD_MAILBOX_REG(ha, reg, 1);
 659         mb[2] = RD_MAILBOX_REG(ha, reg, 2);
 660         mb[3] = RD_MAILBOX_REG(ha, reg, 3);
 661         mb[4] = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 4));
 662         if (mb[1] != PROD_ID_1 || (mb[2] != PROD_ID_2 && mb[2] != PROD_ID_2a) ||
 663             mb[3] != PROD_ID_3) {
 664                 qla_printk(KERN_WARNING, ha,
 665                     "Wrong product ID = 0x%x,0x%x,0x%x\n", mb[1], mb[2], mb[3]);
 666
 667                 goto chip_diag_failed;
 668         }
 669         ha->product_id[0] = mb[1];
 670         ha->product_id[1] = mb[2];
 671         ha->product_id[2] = mb[3];
 672         ha->product_id[3] = mb[4];
 673
 674         /* Adjust fw RISC transfer size */
 675         if (ha->request_q_length > 1024)
 676                 ha->fw_transfer_size = REQUEST_ENTRY_SIZE * 1024;
 677         else
 678                 ha->fw_transfer_size = REQUEST_ENTRY_SIZE *
 679                     ha->request_q_length;
 680
 681         if (IS_QLA2200(ha) &&
 682             RD_MAILBOX_REG(ha, reg, 7) == QLA2200A_RISC_ROM_VER) {
 683                 /* Limit firmware transfer size with a 2200A */
 684                 DEBUG3(printk("scsi(%ld): Found QLA2200A chip.\n",
 685                     ha->host_no));
 686
 687                 ha->device_type |= DT_ISP2200A;
 688                 ha->fw_transfer_size = 128;
 689         }
 690
 691         /* Wrap Incoming Mailboxes Test. */
 692         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 693
 694         DEBUG3(printk("scsi(%ld): Checking mailboxes.\n", ha->host_no));
 695         rval = qla2x00_mbx_reg_test(ha);
 696         if (rval) {
 697                 DEBUG(printk("scsi(%ld): Failed mailbox send register test\n",
 698                     ha->host_no));
 699                 qla_printk(KERN_WARNING, ha,
 700                     "Failed mailbox send register test\n");
 701         }
 702         else {
 703                 /* Flag a successful rval */
 704                 rval = QLA_SUCCESS;
 705         }
 706         spin_lock_irqsave(&ha->hardware_lock, flags);
 707
 708 chip_diag_failed:
 709         if (rval)
 710                 DEBUG2_3(printk("scsi(%ld): Chip diagnostics **** FAILED "
 711                     "****\n", ha->host_no));
 712
 713         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 714
 715         return (rval);
 716 }
 717
 718 /**
 719  * qla24xx_chip_diag() - Test ISP24xx for proper operation.
 720  * @ha: HA context
 721  *
 722  * Returns 0 on success.
 723  */
 724 int
 725 qla24xx_chip_diag(scsi_qla_host_t *ha)
 726 {
 727         int rval;
 728
 729         /* Perform RISC reset. */
 730         qla24xx_reset_risc(ha);
 731
 732         ha->fw_transfer_size = REQUEST_ENTRY_SIZE * ha->request_q_length;
 733
 734         rval = qla2x00_mbx_reg_test(ha);
 735         if (rval) {
 736                 DEBUG(printk("scsi(%ld): Failed mailbox send register test\n",
 737                     ha->host_no));
 738                 qla_printk(KERN_WARNING, ha,
 739                     "Failed mailbox send register test\n");
 740         } else {
 741                 /* Flag a successful rval */
 742                 rval = QLA_SUCCESS;
 743         }
 744
 745         return rval;
 746 }
 747
 748 void
 749 qla2x00_alloc_fw_dump(scsi_qla_host_t *ha)
 750 {
 751         int rval;
 752         uint32_t dump_size, fixed_size, mem_size, req_q_size, rsp_q_size,
 753             eft_size, fce_size;
 754         dma_addr_t tc_dma;
 755         void *tc;
 756
 757         if (ha->fw_dump) {
 758                 qla_printk(KERN_WARNING, ha,
 759                     "Firmware dump previously allocated.\n");
 760                 return;
 761         }
 762
 763         ha->fw_dumped = 0;
 764         fixed_size = mem_size = eft_size = fce_size = 0;
 765         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
 766                 fixed_size = sizeof(struct qla2100_fw_dump);
 767         } else if (IS_QLA23XX(ha)) {
 768                 fixed_size = offsetof(struct qla2300_fw_dump, data_ram);
 769                 mem_size = (ha->fw_memory_size - 0x11000 + 1) *
 770                     sizeof(uint16_t);
 771         } else if (IS_FWI2_CAPABLE(ha)) {
 772                 fixed_size = IS_QLA25XX(ha) ?
 773                     offsetof(struct qla25xx_fw_dump, ext_mem):
 774                     offsetof(struct qla24xx_fw_dump, ext_mem);
 775                 mem_size = (ha->fw_memory_size - 0x100000 + 1) *
 776                     sizeof(uint32_t);
 777
 778                 /* Allocate memory for Fibre Channel Event Buffer. */
 779                 if (!IS_QLA25XX(ha))
 780                         goto try_eft;
 781
 782                 tc = dma_alloc_coherent(&ha->pdev->dev, FCE_SIZE, &tc_dma,
 783                     GFP_KERNEL);
 784                 if (!tc) {
 785                         qla_printk(KERN_WARNING, ha, "Unable to allocate "
 786                             "(%d KB) for FCE.\n", FCE_SIZE / 1024);
 787                         goto try_eft;
 788                 }
 789
 790                 memset(tc, 0, FCE_SIZE);
 791                 rval = qla2x00_enable_fce_trace(ha, tc_dma, FCE_NUM_BUFFERS,
 792                     ha->fce_mb, &ha->fce_bufs);
 793                 if (rval) {
 794                         qla_printk(KERN_WARNING, ha, "Unable to initialize "
 795                             "FCE (%d).\n", rval);
 796                         dma_free_coherent(&ha->pdev->dev, FCE_SIZE, tc,
 797                             tc_dma);
 798                         ha->flags.fce_enabled = 0;
 799                         goto try_eft;
 800                 }
 801
 802                 qla_printk(KERN_INFO, ha, "Allocated (%d KB) for FCE...\n",
 803                     FCE_SIZE / 1024);
 804
 805                 fce_size = sizeof(struct qla2xxx_fce_chain) + EFT_SIZE;
 806                 ha->flags.fce_enabled = 1;
 807                 ha->fce_dma = tc_dma;
 808                 ha->fce = tc;
 809 try_eft:
 810                 /* Allocate memory for Extended Trace Buffer. */
 811                 tc = dma_alloc_coherent(&ha->pdev->dev, EFT_SIZE, &tc_dma,
 812                     GFP_KERNEL);
 813                 if (!tc) {
 814                         qla_printk(KERN_WARNING, ha, "Unable to allocate "
 815                             "(%d KB) for EFT.\n", EFT_SIZE / 1024);
 816                         goto cont_alloc;
 817                 }
 818
 819                 memset(tc, 0, EFT_SIZE);
 820                 rval = qla2x00_enable_eft_trace(ha, tc_dma, EFT_NUM_BUFFERS);
 821                 if (rval) {
 822                         qla_printk(KERN_WARNING, ha, "Unable to initialize "
 823                             "EFT (%d).\n", rval);
 824                         dma_free_coherent(&ha->pdev->dev, EFT_SIZE, tc,
 825                             tc_dma);
 826                         goto cont_alloc;
 827                 }
 828
 829                 qla_printk(KERN_INFO, ha, "Allocated (%d KB) for EFT...\n",
 830                     EFT_SIZE / 1024);
 831
 832                 eft_size = EFT_SIZE;
 833                 ha->eft_dma = tc_dma;
 834                 ha->eft = tc;
 835         }
 836 cont_alloc:
 837         req_q_size = ha->request_q_length * sizeof(request_t);
 838         rsp_q_size = ha->response_q_length * sizeof(response_t);
 839
 840         dump_size = offsetof(struct qla2xxx_fw_dump, isp);
 841         dump_size += fixed_size + mem_size + req_q_size + rsp_q_size +
 842             eft_size + fce_size;
 843
 844         ha->fw_dump = vmalloc(dump_size);
 845         if (!ha->fw_dump) {
 846                 qla_printk(KERN_WARNING, ha, "Unable to allocate (%d KB) for "
 847                     "firmware dump!!!\n", dump_size / 1024);
 848
 849                 if (ha->eft) {
 850                         dma_free_coherent(&ha->pdev->dev, eft_size, ha->eft,
 851                             ha->eft_dma);
 852                         ha->eft = NULL;
 853                         ha->eft_dma = 0;
 854                 }
 855                 return;
 856         }
 857
 858         qla_printk(KERN_INFO, ha, "Allocated (%d KB) for firmware dump...\n",
 859             dump_size / 1024);
 860
 861         ha->fw_dump_len = dump_size;
 862         ha->fw_dump->signature[0] = 'Q';
 863         ha->fw_dump->signature[1] = 'L';
 864         ha->fw_dump->signature[2] = 'G';
 865         ha->fw_dump->signature[3] = 'C';
 866         ha->fw_dump->version = __constant_htonl(1);
 867
 868         ha->fw_dump->fixed_size = htonl(fixed_size);
 869         ha->fw_dump->mem_size = htonl(mem_size);
 870         ha->fw_dump->req_q_size = htonl(req_q_size);
 871         ha->fw_dump->rsp_q_size = htonl(rsp_q_size);
 872
 873         ha->fw_dump->eft_size = htonl(eft_size);
 874         ha->fw_dump->eft_addr_l = htonl(LSD(ha->eft_dma));
 875         ha->fw_dump->eft_addr_h = htonl(MSD(ha->eft_dma));
 876
 877         ha->fw_dump->header_size =
 878             htonl(offsetof(struct qla2xxx_fw_dump, isp));
 879 }
 880
 881 /**
 882  * qla2x00_resize_request_q() - Resize request queue given available ISP memory.
 883  * @ha: HA context
 884  *
 885  * Returns 0 on success.
 886  */
 887 static void
 888 qla2x00_resize_request_q(scsi_qla_host_t *ha)
 889 {
 890         int rval;
 891         uint16_t fw_iocb_cnt = 0;
 892         uint16_t request_q_length = REQUEST_ENTRY_CNT_2XXX_EXT_MEM;
 893         dma_addr_t request_dma;
 894         request_t *request_ring;
 895
 896         /* Valid only on recent ISPs. */
 897         if (IS_QLA2100(ha) || IS_QLA2200(ha))
 898                 return;
 899
 900         /* Retrieve IOCB counts available to the firmware. */
 901         rval = qla2x00_get_resource_cnts(ha, NULL, NULL, NULL, &fw_iocb_cnt,
 902             &ha->max_npiv_vports);
 903         if (rval)
 904                 return;
 905         /* No point in continuing if current settings are sufficient. */
 906         if (fw_iocb_cnt < 1024)
 907                 return;
 908         if (ha->request_q_length >= request_q_length)
 909                 return;
 910
 911         /* Attempt to claim larger area for request queue. */
 912         request_ring = dma_alloc_coherent(&ha->pdev->dev,
 913             (request_q_length + 1) * sizeof(request_t), &request_dma,
 914             GFP_KERNEL);
 915         if (request_ring == NULL)
 916                 return;
 917
 918         /* Resize successful, report extensions. */
 919         qla_printk(KERN_INFO, ha, "Extended memory detected (%d KB)...\n",
 920             (ha->fw_memory_size + 1) / 1024);
 921         qla_printk(KERN_INFO, ha, "Resizing request queue depth "
 922             "(%d -> %d)...\n", ha->request_q_length, request_q_length);
 923
 924         /* Clear old allocations. */
 925         dma_free_coherent(&ha->pdev->dev,
 926             (ha->request_q_length + 1) * sizeof(request_t), ha->request_ring,
 927             ha->request_dma);
 928
 929         /* Begin using larger queue. */
 930         ha->request_q_length = request_q_length;
 931         ha->request_ring = request_ring;
 932         ha->request_dma = request_dma;
 933 }
 934
 935 /**
 936  * qla2x00_setup_chip() - Load and start RISC firmware.
 937  * @ha: HA context
 938  *
 939  * Returns 0 on success.
 940  */
 941 static int
 942 qla2x00_setup_chip(scsi_qla_host_t *ha)
 943 {
 944         int rval;
 945         uint32_t srisc_address = 0;
 946         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 947         unsigned long flags;
 948
 949         if (!IS_FWI2_CAPABLE(ha) && !IS_QLA2100(ha) && !IS_QLA2200(ha)) {
 950                 /* Disable SRAM, Instruction RAM and GP RAM parity.  */
 951                 spin_lock_irqsave(&ha->hardware_lock, flags);
 952                 WRT_REG_WORD(&reg->hccr, (HCCR_ENABLE_PARITY + 0x0));
 953                 RD_REG_WORD(&reg->hccr);
 954                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 955         }
 956
 957         /* Load firmware sequences */
 958         rval = ha->isp_ops->load_risc(ha, &srisc_address);
 959         if (rval == QLA_SUCCESS) {
 960                 DEBUG(printk("scsi(%ld): Verifying Checksum of loaded RISC "
 961                     "code.\n", ha->host_no));
 962
 963                 rval = qla2x00_verify_checksum(ha, srisc_address);
 964                 if (rval == QLA_SUCCESS) {
 965                         /* Start firmware execution. */
 966                         DEBUG(printk("scsi(%ld): Checksum OK, start "
 967                             "firmware.\n", ha->host_no));
 968
 969                         rval = qla2x00_execute_fw(ha, srisc_address);
 970                         /* Retrieve firmware information. */
 971                         if (rval == QLA_SUCCESS && ha->fw_major_version == 0) {
 972                                 qla2x00_get_fw_version(ha,
 973                                     &ha->fw_major_version,
 974                                     &ha->fw_minor_version,
 975                                     &ha->fw_subminor_version,
 976                                     &ha->fw_attributes, &ha->fw_memory_size);
 977                                 qla2x00_resize_request_q(ha);
 978                                 ha->flags.npiv_supported = 0;
 979                                 if ((IS_QLA24XX(ha) || IS_QLA25XX(ha) ||
 980                                      IS_QLA84XX(ha)) &&
 981                                          (ha->fw_attributes & BIT_2)) {
 982                                         ha->flags.npiv_supported = 1;
 983                                         if ((!ha->max_npiv_vports) ||
 984                                             ((ha->max_npiv_vports + 1) %
 985                                             MIN_MULTI_ID_FABRIC))
 986                                                 ha->max_npiv_vports =
 987                                                     MIN_MULTI_ID_FABRIC - 1;
 988                                 }
 989
 990                                 if (ql2xallocfwdump)
 991                                         qla2x00_alloc_fw_dump(ha);
 992                         }
 993                 } else {
 994                         DEBUG2(printk(KERN_INFO
 995                             "scsi(%ld): ISP Firmware failed checksum.\n",
 996                             ha->host_no));
 997                 }
 998         }
 999
1000         if (!IS_FWI2_CAPABLE(ha) && !IS_QLA2100(ha) && !IS_QLA2200(ha)) {
1001                 /* Enable proper parity. */
1002                 spin_lock_irqsave(&ha->hardware_lock, flags);
1003                 if (IS_QLA2300(ha))
1004                         /* SRAM parity */
1005                         WRT_REG_WORD(&reg->hccr, HCCR_ENABLE_PARITY + 0x1);
1006                 else
1007                         /* SRAM, Instruction RAM and GP RAM parity */
1008                         WRT_REG_WORD(&reg->hccr, HCCR_ENABLE_PARITY + 0x7);
1009                 RD_REG_WORD(&reg->hccr);
1010                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1011         }
1012
1013         if (rval) {
1014                 DEBUG2_3(printk("scsi(%ld): Setup chip **** FAILED ****.\n",
1015                     ha->host_no));
1016         }
1017
1018         return (rval);
1019 }
1020
1021 /**
1022  * qla2x00_init_response_q_entries() - Initializes response queue entries.
1023  * @ha: HA context
1024  *
1025  * Beginning of request ring has initialization control block already built
1026  * by nvram config routine.
1027  *
1028  * Returns 0 on success.
1029  */
1030 static void
1031 qla2x00_init_response_q_entries(scsi_qla_host_t *ha)
1032 {
1033         uint16_t cnt;
1034         response_t *pkt;
1035
1036         pkt = ha->response_ring_ptr;
1037         for (cnt = 0; cnt < ha->response_q_length; cnt++) {
1038                 pkt->signature = RESPONSE_PROCESSED;
1039                 pkt++;
1040         }
1041
1042 }
1043
1044 /**
1045  * qla2x00_update_fw_options() - Read and process firmware options.
1046  * @ha: HA context
1047  *
1048  * Returns 0 on success.
1049  */
1050 void
1051 qla2x00_update_fw_options(scsi_qla_host_t *ha)
1052 {
1053         uint16_t swing, emphasis, tx_sens, rx_sens;
1054
1055         memset(ha->fw_options, 0, sizeof(ha->fw_options));
1056         qla2x00_get_fw_options(ha, ha->fw_options);
1057
1058         if (IS_QLA2100(ha) || IS_QLA2200(ha))
1059                 return;
1060
1061         /* Serial Link options. */
1062         DEBUG3(printk("scsi(%ld): Serial link options:\n",
1063             ha->host_no));
1064         DEBUG3(qla2x00_dump_buffer((uint8_t *)&ha->fw_seriallink_options,
1065             sizeof(ha->fw_seriallink_options)));
1066
1067         ha->fw_options[1] &= ~FO1_SET_EMPHASIS_SWING;
1068         if (ha->fw_seriallink_options[3] & BIT_2) {
1069                 ha->fw_options[1] |= FO1_SET_EMPHASIS_SWING;
1070
1071                 /*  1G settings */
1072                 swing = ha->fw_seriallink_options[2] & (BIT_2 | BIT_1 | BIT_0);
1073                 emphasis = (ha->fw_seriallink_options[2] &
1074                     (BIT_4 | BIT_3)) >> 3;
1075                 tx_sens = ha->fw_seriallink_options[0] &
1076                     (BIT_3 | BIT_2 | BIT_1 | BIT_0);
1077                 rx_sens = (ha->fw_seriallink_options[0] &
1078                     (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
1079                 ha->fw_options[10] = (emphasis << 14) | (swing << 8);
1080                 if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
1081                         if (rx_sens == 0x0)
1082                                 rx_sens = 0x3;
1083                         ha->fw_options[10] |= (tx_sens << 4) | rx_sens;
1084                 } else if (IS_QLA2322(ha) || IS_QLA6322(ha))
1085                         ha->fw_options[10] |= BIT_5 |
1086                             ((rx_sens & (BIT_1 | BIT_0)) << 2) |
1087                             (tx_sens & (BIT_1 | BIT_0));
1088
1089                 /*  2G settings */
1090                 swing = (ha->fw_seriallink_options[2] &
1091                     (BIT_7 | BIT_6 | BIT_5)) >> 5;
1092                 emphasis = ha->fw_seriallink_options[3] & (BIT_1 | BIT_0);
1093                 tx_sens = ha->fw_seriallink_options[1] &
1094                     (BIT_3 | BIT_2 | BIT_1 | BIT_0);
1095                 rx_sens = (ha->fw_seriallink_options[1] &
1096                     (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
1097                 ha->fw_options[11] = (emphasis << 14) | (swing << 8);
1098                 if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
1099                         if (rx_sens == 0x0)
1100                                 rx_sens = 0x3;
1101                         ha->fw_options[11] |= (tx_sens << 4) | rx_sens;
1102                 } else if (IS_QLA2322(ha) || IS_QLA6322(ha))
1103                         ha->fw_options[11] |= BIT_5 |
1104                             ((rx_sens & (BIT_1 | BIT_0)) << 2) |
1105                             (tx_sens & (BIT_1 | BIT_0));
1106         }
1107
1108         /* FCP2 options. */
1109         /*  Return command IOCBs without waiting for an ABTS to complete. */
1110         ha->fw_options[3] |= BIT_13;
1111
1112         /* LED scheme. */
1113         if (ha->flags.enable_led_scheme)
1114                 ha->fw_options[2] |= BIT_12;
1115
1116         /* Detect ISP6312. */
1117         if (IS_QLA6312(ha))
1118                 ha->fw_options[2] |= BIT_13;
1119
1120         /* Update firmware options. */
1121         qla2x00_set_fw_options(ha, ha->fw_options);
1122 }
1123
1124 void
1125 qla24xx_update_fw_options(scsi_qla_host_t *ha)
1126 {
1127         int rval;
1128
1129         /* Update Serial Link options. */
1130         if ((le16_to_cpu(ha->fw_seriallink_options24[0]) & BIT_0) == 0)
1131                 return;
1132
1133         rval = qla2x00_set_serdes_params(ha,
1134             le16_to_cpu(ha->fw_seriallink_options24[1]),
1135             le16_to_cpu(ha->fw_seriallink_options24[2]),
1136             le16_to_cpu(ha->fw_seriallink_options24[3]));
1137         if (rval != QLA_SUCCESS) {
1138                 qla_printk(KERN_WARNING, ha,
1139                     "Unable to update Serial Link options (%x).\n", rval);
1140         }
1141 }
1142
1143 void
1144 qla2x00_config_rings(struct scsi_qla_host *ha)
1145 {
1146         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1147
1148         /* Setup ring parameters in initialization control block. */
1149         ha->init_cb->request_q_outpointer = __constant_cpu_to_le16(0);
1150         ha->init_cb->response_q_inpointer = __constant_cpu_to_le16(0);
1151         ha->init_cb->request_q_length = cpu_to_le16(ha->request_q_length);
1152         ha->init_cb->response_q_length = cpu_to_le16(ha->response_q_length);
1153         ha->init_cb->request_q_address[0] = cpu_to_le32(LSD(ha->request_dma));
1154         ha->init_cb->request_q_address[1] = cpu_to_le32(MSD(ha->request_dma));
1155         ha->init_cb->response_q_address[0] = cpu_to_le32(LSD(ha->response_dma));
1156         ha->init_cb->response_q_address[1] = cpu_to_le32(MSD(ha->response_dma));
1157
1158         WRT_REG_WORD(ISP_REQ_Q_IN(ha, reg), 0);
1159         WRT_REG_WORD(ISP_REQ_Q_OUT(ha, reg), 0);
1160         WRT_REG_WORD(ISP_RSP_Q_IN(ha, reg), 0);
1161         WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), 0);
1162         RD_REG_WORD(ISP_RSP_Q_OUT(ha, reg));            /* PCI Posting. */
1163 }
1164
1165 void
1166 qla24xx_config_rings(struct scsi_qla_host *ha)
1167 {
1168         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1169         struct init_cb_24xx *icb;
1170
1171         /* Setup ring parameters in initialization control block. */
1172         icb = (struct init_cb_24xx *)ha->init_cb;
1173         icb->request_q_outpointer = __constant_cpu_to_le16(0);
1174         icb->response_q_inpointer = __constant_cpu_to_le16(0);
1175         icb->request_q_length = cpu_to_le16(ha->request_q_length);
1176         icb->response_q_length = cpu_to_le16(ha->response_q_length);
1177         icb->request_q_address[0] = cpu_to_le32(LSD(ha->request_dma));
1178         icb->request_q_address[1] = cpu_to_le32(MSD(ha->request_dma));
1179         icb->response_q_address[0] = cpu_to_le32(LSD(ha->response_dma));
1180         icb->response_q_address[1] = cpu_to_le32(MSD(ha->response_dma));
1181
1182         WRT_REG_DWORD(&reg->req_q_in, 0);
1183         WRT_REG_DWORD(&reg->req_q_out, 0);
1184         WRT_REG_DWORD(&reg->rsp_q_in, 0);
1185         WRT_REG_DWORD(&reg->rsp_q_out, 0);
1186         RD_REG_DWORD(&reg->rsp_q_out);
1187 }
1188
1189 /**
1190  * qla2x00_init_rings() - Initializes firmware.
1191  * @ha: HA context
1192  *
1193  * Beginning of request ring has initialization control block already built
1194  * by nvram config routine.
1195  *
1196  * Returns 0 on success.
1197  */
1198 static int
1199 qla2x00_init_rings(scsi_qla_host_t *ha)
1200 {
1201         int     rval;
1202         unsigned long flags = 0;
1203         int cnt;
1204         struct mid_init_cb_24xx *mid_init_cb =
1205             (struct mid_init_cb_24xx *) ha->init_cb;
1206
1207         spin_lock_irqsave(&ha->hardware_lock, flags);
1208
1209         /* Clear outstanding commands array. */
1210         for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++)
1211                 ha->outstanding_cmds[cnt] = NULL;
1212
1213         ha->current_outstanding_cmd = 0;
1214
1215         /* Clear RSCN queue. */
1216         ha->rscn_in_ptr = 0;
1217         ha->rscn_out_ptr = 0;
1218
1219         /* Initialize firmware. */
1220         ha->request_ring_ptr  = ha->request_ring;
1221         ha->req_ring_index    = 0;
1222         ha->req_q_cnt         = ha->request_q_length;
1223         ha->response_ring_ptr = ha->response_ring;
1224         ha->rsp_ring_index    = 0;
1225
1226         /* Initialize response queue entries */
1227         qla2x00_init_response_q_entries(ha);
1228
1229         ha->isp_ops->config_rings(ha);
1230
1231         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1232
1233         /* Update any ISP specific firmware options before initialization. */
1234         ha->isp_ops->update_fw_options(ha);
1235
1236         DEBUG(printk("scsi(%ld): Issue init firmware.\n", ha->host_no));
1237
1238         if (ha->flags.npiv_supported)
1239                 mid_init_cb->count = cpu_to_le16(ha->max_npiv_vports);
1240
1241         mid_init_cb->options = __constant_cpu_to_le16(BIT_1);
1242
1243         rval = qla2x00_init_firmware(ha, ha->init_cb_size);
1244         if (rval) {
1245                 DEBUG2_3(printk("scsi(%ld): Init firmware **** FAILED ****.\n",
1246                     ha->host_no));
1247         } else {
1248                 DEBUG3(printk("scsi(%ld): Init firmware -- success.\n",
1249                     ha->host_no));
1250         }
1251
1252         return (rval);
1253 }
1254
1255 /**
1256  * qla2x00_fw_ready() - Waits for firmware ready.
1257  * @ha: HA context
1258  *
1259  * Returns 0 on success.
1260  */
1261 static int
1262 qla2x00_fw_ready(scsi_qla_host_t *ha)
1263 {
1264         int             rval;
1265         unsigned long   wtime, mtime, cs84xx_time;
1266         uint16_t        min_wait;       /* Minimum wait time if loop is down */
1267         uint16_t        wait_time;      /* Wait time if loop is coming ready */
1268         uint16_t        state[3];
1269
1270         rval = QLA_SUCCESS;
1271
1272         /* 20 seconds for loop down. */
1273         min_wait = 20;
1274
1275         /*
1276          * Firmware should take at most one RATOV to login, plus 5 seconds for
1277          * our own processing.
1278          */
1279         if ((wait_time = (ha->retry_count*ha->login_timeout) + 5) < min_wait) {
1280                 wait_time = min_wait;
1281         }
1282
1283         /* Min wait time if loop down */
1284         mtime = jiffies + (min_wait * HZ);
1285
1286         /* wait time before firmware ready */
1287         wtime = jiffies + (wait_time * HZ);
1288
1289         /* Wait for ISP to finish LIP */
1290         if (!ha->flags.init_done)
1291                 qla_printk(KERN_INFO, ha, "Waiting for LIP to complete...\n");
1292
1293         DEBUG3(printk("scsi(%ld): Waiting for LIP to complete...\n",
1294             ha->host_no));
1295
1296         do {
1297                 rval = qla2x00_get_firmware_state(ha, state);
1298                 if (rval == QLA_SUCCESS) {
1299                         if (state[0] < FSTATE_LOSS_OF_SYNC) {
1300                                 ha->device_flags &= ~DFLG_NO_CABLE;
1301                         }
1302                         if (IS_QLA84XX(ha) && state[0] != FSTATE_READY) {
1303                                 DEBUG16(printk("scsi(%ld): fw_state=%x "
1304                                     "84xx=%x.\n", ha->host_no, state[0],
1305                                     state[2]));
1306                                 if ((state[2] & FSTATE_LOGGED_IN) &&
1307                                      (state[2] & FSTATE_WAITING_FOR_VERIFY)) {
1308                                         DEBUG16(printk("scsi(%ld): Sending "
1309                                             "verify iocb.\n", ha->host_no));
1310
1311                                         cs84xx_time = jiffies;
1312                                         rval = qla84xx_init_chip(ha);
1313                                         if (rval != QLA_SUCCESS)
1314                                                 break;
1315
1316                                         /* Add time taken to initialize. */
1317                                         cs84xx_time = jiffies - cs84xx_time;
1318                                         wtime += cs84xx_time;
1319                                         mtime += cs84xx_time;
1320                                         DEBUG16(printk("scsi(%ld): Increasing "
1321                                             "wait time by %ld. New time %ld\n",
1322                                             ha->host_no, cs84xx_time, wtime));
1323                                 }
1324                         } else if (state[0] == FSTATE_READY) {
1325                                 DEBUG(printk("scsi(%ld): F/W Ready - OK \n",
1326                                     ha->host_no));
1327
1328                                 qla2x00_get_retry_cnt(ha, &ha->retry_count,
1329                                     &ha->login_timeout, &ha->r_a_tov);
1330
1331                                 rval = QLA_SUCCESS;
1332                                 break;
1333                         }
1334
1335                         rval = QLA_FUNCTION_FAILED;
1336
1337                         if (atomic_read(&ha->loop_down_timer) &&
1338                             state[0] != FSTATE_READY) {
1339                                 /* Loop down. Timeout on min_wait for states
1340                                  * other than Wait for Login.
1341                                  */
1342                                 if (time_after_eq(jiffies, mtime)) {
1343                                         qla_printk(KERN_INFO, ha,
1344                                             "Cable is unplugged...\n");
1345
1346                                         ha->device_flags |= DFLG_NO_CABLE;
1347                                         break;
1348                                 }
1349                         }
1350                 } else {
1351                         /* Mailbox cmd failed. Timeout on min_wait. */
1352                         if (time_after_eq(jiffies, mtime))
1353                                 break;
1354                 }
1355
1356                 if (time_after_eq(jiffies, wtime))
1357                         break;
1358
1359                 /* Delay for a while */
1360                 msleep(500);
1361
1362                 DEBUG3(printk("scsi(%ld): fw_state=%x curr time=%lx.\n",
1363                     ha->host_no, state[0], jiffies));
1364         } while (1);
1365
1366         DEBUG(printk("scsi(%ld): fw_state=%x curr time=%lx.\n",
1367             ha->host_no, state[0], jiffies));
1368
1369         if (rval) {
1370                 DEBUG2_3(printk("scsi(%ld): Firmware ready **** FAILED ****.\n",
1371                     ha->host_no));
1372         }
1373
1374         return (rval);
1375 }
1376
1377 /*
1378 *  qla2x00_configure_hba
1379 *      Setup adapter context.
1380 *
1381 * Input:
1382 *      ha = adapter state pointer.
1383 *
1384 * Returns:
1385 *      0 = success
1386 *
1387 * Context:
1388 *      Kernel context.
1389 */
1390 static int
1391 qla2x00_configure_hba(scsi_qla_host_t *ha)
1392 {
1393         int       rval;
1394         uint16_t      loop_id;
1395         uint16_t      topo;
1396         uint16_t      sw_cap;
1397         uint8_t       al_pa;
1398         uint8_t       area;
1399         uint8_t       domain;
1400         char            connect_type[22];
1401
1402         /* Get host addresses. */
1403         rval = qla2x00_get_adapter_id(ha,
1404             &loop_id, &al_pa, &area, &domain, &topo, &sw_cap);
1405         if (rval != QLA_SUCCESS) {
1406                 if (LOOP_TRANSITION(ha) || atomic_read(&ha->loop_down_timer) ||
1407                     (rval == QLA_COMMAND_ERROR && loop_id == 0x7)) {
1408                         DEBUG2(printk("%s(%ld) Loop is in a transition state\n",
1409                             __func__, ha->host_no));
1410                 } else {
1411                         qla_printk(KERN_WARNING, ha,
1412                             "ERROR -- Unable to get host loop ID.\n");
1413                         set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
1414                 }
1415                 return (rval);
1416         }
1417
1418         if (topo == 4) {
1419                 qla_printk(KERN_INFO, ha,
1420                         "Cannot get topology - retrying.\n");
1421                 return (QLA_FUNCTION_FAILED);
1422         }
1423
1424         ha->loop_id = loop_id;
1425
1426         /* initialize */
1427         ha->min_external_loopid = SNS_FIRST_LOOP_ID;
1428         ha->operating_mode = LOOP;
1429         ha->switch_cap = 0;
1430
1431         switch (topo) {
1432         case 0:
1433                 DEBUG3(printk("scsi(%ld): HBA in NL topology.\n",
1434                     ha->host_no));
1435                 ha->current_topology = ISP_CFG_NL;
1436                 strcpy(connect_type, "(Loop)");
1437                 break;
1438
1439         case 1:
1440                 DEBUG3(printk("scsi(%ld): HBA in FL topology.\n",
1441                     ha->host_no));
1442                 ha->switch_cap = sw_cap;
1443                 ha->current_topology = ISP_CFG_FL;
1444                 strcpy(connect_type, "(FL_Port)");
1445                 break;
1446
1447         case 2:
1448                 DEBUG3(printk("scsi(%ld): HBA in N P2P topology.\n",
1449                     ha->host_no));
1450                 ha->operating_mode = P2P;
1451                 ha->current_topology = ISP_CFG_N;
1452                 strcpy(connect_type, "(N_Port-to-N_Port)");
1453                 break;
1454
1455         case 3:
1456                 DEBUG3(printk("scsi(%ld): HBA in F P2P topology.\n",
1457                     ha->host_no));
1458                 ha->switch_cap = sw_cap;
1459                 ha->operating_mode = P2P;
1460                 ha->current_topology = ISP_CFG_F;
1461                 strcpy(connect_type, "(F_Port)");
1462                 break;
1463
1464         default:
1465                 DEBUG3(printk("scsi(%ld): HBA in unknown topology %x. "
1466                     "Using NL.\n",
1467                     ha->host_no, topo));
1468                 ha->current_topology = ISP_CFG_NL;
1469                 strcpy(connect_type, "(Loop)");
1470                 break;
1471         }
1472
1473         /* Save Host port and loop ID. */
1474         /* byte order - Big Endian */
1475         ha->d_id.b.domain = domain;
1476         ha->d_id.b.area = area;
1477         ha->d_id.b.al_pa = al_pa;
1478
1479         if (!ha->flags.init_done)
1480                 qla_printk(KERN_INFO, ha,
1481                     "Topology - %s, Host Loop address 0x%x\n",
1482                     connect_type, ha->loop_id);
1483
1484         if (rval) {
1485                 DEBUG2_3(printk("scsi(%ld): FAILED.\n", ha->host_no));
1486         } else {
1487                 DEBUG3(printk("scsi(%ld): exiting normally.\n", ha->host_no));
1488         }
1489
1490         return(rval);
1491 }
1492
1493 static inline void
1494 qla2x00_set_model_info(scsi_qla_host_t *ha, uint8_t *model, size_t len, char *def)
1495 {
1496         char *st, *en;
1497         uint16_t index;
1498
1499         if (memcmp(model, BINZERO, len) != 0) {
1500                 strncpy(ha->model_number, model, len);
1501                 st = en = ha->model_number;
1502                 en += len - 1;
1503                 while (en > st) {
1504                         if (*en != 0x20 && *en != 0x00)
1505                                 break;
1506                         *en-- = '\0';
1507                 }
1508
1509                 index = (ha->pdev->subsystem_device & 0xff);
1510                 if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_QLOGIC &&
1511                     index < QLA_MODEL_NAMES)
1512                         strncpy(ha->model_desc,
1513                             qla2x00_model_name[index * 2 + 1],
1514                             sizeof(ha->model_desc) - 1);
1515         } else {
1516                 index = (ha->pdev->subsystem_device & 0xff);
1517                 if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_QLOGIC &&
1518                     index < QLA_MODEL_NAMES) {
1519                         strcpy(ha->model_number,
1520                             qla2x00_model_name[index * 2]);
1521                         strncpy(ha->model_desc,
1522                             qla2x00_model_name[index * 2 + 1],
1523                             sizeof(ha->model_desc) - 1);
1524                 } else {
1525                         strcpy(ha->model_number, def);
1526                 }
1527         }
1528         if (IS_FWI2_CAPABLE(ha))
1529                 qla2xxx_get_vpd_field(ha, "\x82", ha->model_desc,
1530                     sizeof(ha->model_desc));
1531 }
1532
1533 /* On sparc systems, obtain port and node WWN from firmware
1534  * properties.
1535  */
1536 static void qla2xxx_nvram_wwn_from_ofw(scsi_qla_host_t *ha, nvram_t *nv)
1537 {
1538 #ifdef CONFIG_SPARC
1539         struct pci_dev *pdev = ha->pdev;
1540         struct device_node *dp = pci_device_to_OF_node(pdev);
1541         const u8 *val;
1542         int len;
1543
1544         val = of_get_property(dp, "port-wwn", &len);
1545         if (val && len >= WWN_SIZE)
1546                 memcpy(nv->port_name, val, WWN_SIZE);
1547
1548         val = of_get_property(dp, "node-wwn", &len);
1549         if (val && len >= WWN_SIZE)
1550                 memcpy(nv->node_name, val, WWN_SIZE);
1551 #endif
1552 }
1553
1554 /*
1555 * NVRAM configuration for ISP 2xxx
1556 *
1557 * Input:
1558 *      ha                = adapter block pointer.
1559 *
1560 * Output:
1561 *      initialization control block in response_ring
1562 *      host adapters parameters in host adapter block
1563 *
1564 * Returns:
1565 *      0 = success.
1566 */
1567 int
1568 qla2x00_nvram_config(scsi_qla_host_t *ha)
1569 {
1570         int             rval;
1571         uint8_t         chksum = 0;
1572         uint16_t        cnt;
1573         uint8_t         *dptr1, *dptr2;
1574         init_cb_t       *icb = ha->init_cb;
1575         nvram_t         *nv = ha->nvram;
1576         uint8_t         *ptr = ha->nvram;
1577         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1578
1579         rval = QLA_SUCCESS;
1580
1581         /* Determine NVRAM starting address. */
1582         ha->nvram_size = sizeof(nvram_t);
1583         ha->nvram_base = 0;
1584         if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA2300(ha))
1585                 if ((RD_REG_WORD(&reg->ctrl_status) >> 14) == 1)
1586                         ha->nvram_base = 0x80;
1587
1588         /* Get NVRAM data and calculate checksum. */
1589         ha->isp_ops->read_nvram(ha, ptr, ha->nvram_base, ha->nvram_size);
1590         for (cnt = 0, chksum = 0; cnt < ha->nvram_size; cnt++)
1591                 chksum += *ptr++;
1592
1593         DEBUG5(printk("scsi(%ld): Contents of NVRAM\n", ha->host_no));
1594         DEBUG5(qla2x00_dump_buffer((uint8_t *)nv, ha->nvram_size));
1595
1596         /* Bad NVRAM data, set defaults parameters. */
1597         if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' ||
1598             nv->id[2] != 'P' || nv->id[3] != ' ' || nv->nvram_version < 1) {
1599                 /* Reset NVRAM data. */
1600                 qla_printk(KERN_WARNING, ha, "Inconsistent NVRAM detected: "
1601                     "checksum=0x%x id=%c version=0x%x.\n", chksum, nv->id[0],
1602                     nv->nvram_version);
1603                 qla_printk(KERN_WARNING, ha, "Falling back to functioning (yet "
1604                     "invalid -- WWPN) defaults.\n");
1605
1606                 if (chksum)
1607                         qla2xxx_hw_event_log(ha, HW_EVENT_NVRAM_CHKSUM_ERR, 0,
1608                             MSW(chksum), LSW(chksum));
1609
1610                 /*
1611                  * Set default initialization control block.
1612                  */
1613                 memset(nv, 0, ha->nvram_size);
1614                 nv->parameter_block_version = ICB_VERSION;
1615
1616                 if (IS_QLA23XX(ha)) {
1617                         nv->firmware_options[0] = BIT_2 | BIT_1;
1618                         nv->firmware_options[1] = BIT_7 | BIT_5;
1619                         nv->add_firmware_options[0] = BIT_5;
1620                         nv->add_firmware_options[1] = BIT_5 | BIT_4;
1621                         nv->frame_payload_size = __constant_cpu_to_le16(2048);
1622                         nv->special_options[1] = BIT_7;
1623                 } else if (IS_QLA2200(ha)) {
1624                         nv->firmware_options[0] = BIT_2 | BIT_1;
1625                         nv->firmware_options[1] = BIT_7 | BIT_5;
1626                         nv->add_firmware_options[0] = BIT_5;
1627                         nv->add_firmware_options[1] = BIT_5 | BIT_4;
1628                         nv->frame_payload_size = __constant_cpu_to_le16(1024);
1629                 } else if (IS_QLA2100(ha)) {
1630                         nv->firmware_options[0] = BIT_3 | BIT_1;
1631                         nv->firmware_options[1] = BIT_5;
1632                         nv->frame_payload_size = __constant_cpu_to_le16(1024);
1633                 }
1634
1635                 nv->max_iocb_allocation = __constant_cpu_to_le16(256);
1636                 nv->execution_throttle = __constant_cpu_to_le16(16);
1637                 nv->retry_count = 8;
1638                 nv->retry_delay = 1;
1639
1640                 nv->port_name[0] = 33;
1641                 nv->port_name[3] = 224;
1642                 nv->port_name[4] = 139;
1643
1644                 qla2xxx_nvram_wwn_from_ofw(ha, nv);
1645
1646                 nv->login_timeout = 4;
1647
1648                 /*
1649                  * Set default host adapter parameters
1650                  */
1651                 nv->host_p[1] = BIT_2;
1652                 nv->reset_delay = 5;
1653                 nv->port_down_retry_count = 8;
1654                 nv->max_luns_per_target = __constant_cpu_to_le16(8);
1655                 nv->link_down_timeout = 60;
1656
1657                 rval = 1;
1658         }
1659
1660 #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
1661         /*
1662          * The SN2 does not provide BIOS emulation which means you can't change
1663          * potentially bogus BIOS settings. Force the use of default settings
1664          * for link rate and frame size.  Hope that the rest of the settings
1665          * are valid.
1666          */
1667         if (ia64_platform_is("sn2")) {
1668                 nv->frame_payload_size = __constant_cpu_to_le16(2048);
1669                 if (IS_QLA23XX(ha))
1670                         nv->special_options[1] = BIT_7;
1671         }
1672 #endif
1673
1674         /* Reset Initialization control block */
1675         memset(icb, 0, ha->init_cb_size);
1676
1677         /*
1678          * Setup driver NVRAM options.
1679          */
1680         nv->firmware_options[0] |= (BIT_6 | BIT_1);
1681         nv->firmware_options[0] &= ~(BIT_5 | BIT_4);
1682         nv->firmware_options[1] |= (BIT_5 | BIT_0);
1683         nv->firmware_options[1] &= ~BIT_4;
1684
1685         if (IS_QLA23XX(ha)) {
1686                 nv->firmware_options[0] |= BIT_2;
1687                 nv->firmware_options[0] &= ~BIT_3;
1688                 nv->add_firmware_options[1] |= BIT_5 | BIT_4;
1689
1690                 if (IS_QLA2300(ha)) {
1691                         if (ha->fb_rev == FPM_2310) {
1692                                 strcpy(ha->model_number, "QLA2310");
1693                         } else {
1694                                 strcpy(ha->model_number, "QLA2300");
1695                         }
1696                 } else {
1697                         qla2x00_set_model_info(ha, nv->model_number,
1698                             sizeof(nv->model_number), "QLA23xx");
1699                 }
1700         } else if (IS_QLA2200(ha)) {
1701                 nv->firmware_options[0] |= BIT_2;
1702                 /*
1703                  * 'Point-to-point preferred, else loop' is not a safe
1704                  * connection mode setting.
1705                  */
1706                 if ((nv->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) ==
1707                     (BIT_5 | BIT_4)) {
1708                         /* Force 'loop preferred, else point-to-point'. */
1709                         nv->add_firmware_options[0] &= ~(BIT_6 | BIT_5 | BIT_4);
1710                         nv->add_firmware_options[0] |= BIT_5;
1711                 }
1712                 strcpy(ha->model_number, "QLA22xx");
1713         } else /*if (IS_QLA2100(ha))*/ {
1714                 strcpy(ha->model_number, "QLA2100");
1715         }
1716
1717         /*
1718          * Copy over NVRAM RISC parameter block to initialization control block.
1719          */
1720         dptr1 = (uint8_t *)icb;
1721         dptr2 = (uint8_t *)&nv->parameter_block_version;
1722         cnt = (uint8_t *)&icb->request_q_outpointer - (uint8_t *)&icb->version;
1723         while (cnt--)
1724                 *dptr1++ = *dptr2++;
1725
1726         /* Copy 2nd half. */
1727         dptr1 = (uint8_t *)icb->add_firmware_options;
1728         cnt = (uint8_t *)icb->reserved_3 - (uint8_t *)icb->add_firmware_options;
1729         while (cnt--)
1730                 *dptr1++ = *dptr2++;
1731
1732         /* Use alternate WWN? */
1733         if (nv->host_p[1] & BIT_7) {
1734                 memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
1735                 memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
1736         }
1737
1738         /* Prepare nodename */
1739         if ((icb->firmware_options[1] & BIT_6) == 0) {
1740                 /*
1741                  * Firmware will apply the following mask if the nodename was
1742                  * not provided.
1743                  */
1744                 memcpy(icb->node_name, icb->port_name, WWN_SIZE);
1745                 icb->node_name[0] &= 0xF0;
1746         }
1747
1748         /*
1749          * Set host adapter parameters.
1750          */
1751         if (nv->host_p[0] & BIT_7)
1752                 ql2xextended_error_logging = 1;
1753         ha->flags.disable_risc_code_load = ((nv->host_p[0] & BIT_4) ? 1 : 0);
1754         /* Always load RISC code on non ISP2[12]00 chips. */
1755         if (!IS_QLA2100(ha) && !IS_QLA2200(ha))
1756                 ha->flags.disable_risc_code_load = 0;
1757         ha->flags.enable_lip_reset = ((nv->host_p[1] & BIT_1) ? 1 : 0);
1758         ha->flags.enable_lip_full_login = ((nv->host_p[1] & BIT_2) ? 1 : 0);
1759         ha->flags.enable_target_reset = ((nv->host_p[1] & BIT_3) ? 1 : 0);
1760         ha->flags.enable_led_scheme = (nv->special_options[1] & BIT_4) ? 1 : 0;
1761         ha->flags.disable_serdes = 0;
1762
1763         ha->operating_mode =
1764             (icb->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) >> 4;
1765
1766         memcpy(ha->fw_seriallink_options, nv->seriallink_options,
1767             sizeof(ha->fw_seriallink_options));
1768
1769         /* save HBA serial number */
1770         ha->serial0 = icb->port_name[5];
1771         ha->serial1 = icb->port_name[6];
1772         ha->serial2 = icb->port_name[7];
1773         ha->node_name = icb->node_name;
1774         ha->port_name = icb->port_name;
1775
1776         icb->execution_throttle = __constant_cpu_to_le16(0xFFFF);
1777
1778         ha->retry_count = nv->retry_count;
1779
1780         /* Set minimum login_timeout to 4 seconds. */
1781         if (nv->login_timeout < ql2xlogintimeout)
1782                 nv->login_timeout = ql2xlogintimeout;
1783         if (nv->login_timeout < 4)
1784                 nv->login_timeout = 4;
1785         ha->login_timeout = nv->login_timeout;
1786         icb->login_timeout = nv->login_timeout;
1787
1788         /* Set minimum RATOV to 100 tenths of a second. */
1789         ha->r_a_tov = 100;
1790
1791         ha->loop_reset_delay = nv->reset_delay;
1792
1793         /* Link Down Timeout = 0:
1794          *
1795          *      When Port Down timer expires we will start returning
1796          *      I/O's to OS with "DID_NO_CONNECT".
1797          *
1798          * Link Down Timeout != 0:
1799          *
1800          *       The driver waits for the link to come up after link down
1801          *       before returning I/Os to OS with "DID_NO_CONNECT".
1802          */
1803         if (nv->link_down_timeout == 0) {
1804                 ha->loop_down_abort_time =
1805                     (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
1806         } else {
1807                 ha->link_down_timeout =  nv->link_down_timeout;
1808                 ha->loop_down_abort_time =
1809                     (LOOP_DOWN_TIME - ha->link_down_timeout);
1810         }
1811
1812         /*
1813          * Need enough time to try and get the port back.
1814          */
1815         ha->port_down_retry_count = nv->port_down_retry_count;
1816         if (qlport_down_retry)
1817                 ha->port_down_retry_count = qlport_down_retry;
1818         /* Set login_retry_count */
1819         ha->login_retry_count  = nv->retry_count;
1820         if (ha->port_down_retry_count == nv->port_down_retry_count &&
1821             ha->port_down_retry_count > 3)
1822                 ha->login_retry_count = ha->port_down_retry_count;
1823         else if (ha->port_down_retry_count > (int)ha->login_retry_count)
1824                 ha->login_retry_count = ha->port_down_retry_count;
1825         if (ql2xloginretrycount)
1826                 ha->login_retry_count = ql2xloginretrycount;
1827
1828         icb->lun_enables = __constant_cpu_to_le16(0);
1829         icb->command_resource_count = 0;
1830         icb->immediate_notify_resource_count = 0;
1831         icb->timeout = __constant_cpu_to_le16(0);
1832
1833         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
1834                 /* Enable RIO */
1835                 icb->firmware_options[0] &= ~BIT_3;
1836                 icb->add_firmware_options[0] &=
1837                     ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
1838                 icb->add_firmware_options[0] |= BIT_2;
1839                 icb->response_accumulation_timer = 3;
1840                 icb->interrupt_delay_timer = 5;
1841
1842                 ha->flags.process_response_queue = 1;
1843         } else {
1844                 /* Enable ZIO. */
1845                 if (!ha->flags.init_done) {
1846                         ha->zio_mode = icb->add_firmware_options[0] &
1847                             (BIT_3 | BIT_2 | BIT_1 | BIT_0);
1848                         ha->zio_timer = icb->interrupt_delay_timer ?
1849                             icb->interrupt_delay_timer: 2;
1850                 }
1851                 icb->add_firmware_options[0] &=
1852                     ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
1853                 ha->flags.process_response_queue = 0;
1854                 if (ha->zio_mode != QLA_ZIO_DISABLED) {
1855                         ha->zio_mode = QLA_ZIO_MODE_6;
1856
1857                         DEBUG2(printk("scsi(%ld): ZIO mode %d enabled; timer "
1858                             "delay (%d us).\n", ha->host_no, ha->zio_mode,
1859                             ha->zio_timer * 100));
1860                         qla_printk(KERN_INFO, ha,
1861                             "ZIO mode %d enabled; timer delay (%d us).\n",
1862                             ha->zio_mode, ha->zio_timer * 100);
1863
1864                         icb->add_firmware_options[0] |= (uint8_t)ha->zio_mode;
1865                         icb->interrupt_delay_timer = (uint8_t)ha->zio_timer;
1866                         ha->flags.process_response_queue = 1;
1867                 }
1868         }
1869
1870         if (rval) {
1871                 DEBUG2_3(printk(KERN_WARNING
1872                     "scsi(%ld): NVRAM configuration failed!\n", ha->host_no));
1873         }
1874         return (rval);
1875 }
1876
1877 static void
1878 qla2x00_rport_del(void *data)
1879 {
1880         fc_port_t *fcport = data;
1881         struct fc_rport *rport;
1882
1883         spin_lock_irq(fcport->ha->host->host_lock);
1884         rport = fcport->drport;
1885         fcport->drport = NULL;
1886         spin_unlock_irq(fcport->ha->host->host_lock);
1887         if (rport)
1888                 fc_remote_port_delete(rport);
1889 }
1890
1891 /**
1892  * qla2x00_alloc_fcport() - Allocate a generic fcport.
1893  * @ha: HA context
1894  * @flags: allocation flags
1895  *
1896  * Returns a pointer to the allocated fcport, or NULL, if none available.
1897  */
1898 static fc_port_t *
1899 qla2x00_alloc_fcport(scsi_qla_host_t *ha, gfp_t flags)
1900 {
1901         fc_port_t *fcport;
1902
1903         fcport = kzalloc(sizeof(fc_port_t), flags);
1904         if (!fcport)
1905                 return NULL;
1906
1907         /* Setup fcport template structure. */
1908         fcport->ha = ha;
1909         fcport->vp_idx = ha->vp_idx;
1910         fcport->port_type = FCT_UNKNOWN;
1911         fcport->loop_id = FC_NO_LOOP_ID;
1912         atomic_set(&fcport->state, FCS_UNCONFIGURED);
1913         fcport->flags = FCF_RLC_SUPPORT;
1914         fcport->supported_classes = FC_COS_UNSPECIFIED;
1915
1916         return fcport;
1917 }
1918
1919 /*
1920  * qla2x00_configure_loop
1921  *      Updates Fibre Channel Device Database with what is actually on loop.
1922  *
1923  * Input:
1924  *      ha                = adapter block pointer.
1925  *
1926  * Returns:
1927  *      0 = success.
1928  *      1 = error.
1929  *      2 = database was full and device was not configured.
1930  */
1931 static int
1932 qla2x00_configure_loop(scsi_qla_host_t *ha)
1933 {
1934         int  rval;
1935         unsigned long flags, save_flags;
1936
1937         rval = QLA_SUCCESS;
1938
1939         /* Get Initiator ID */
1940         if (test_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags)) {
1941                 rval = qla2x00_configure_hba(ha);
1942                 if (rval != QLA_SUCCESS) {
1943                         DEBUG(printk("scsi(%ld): Unable to configure HBA.\n",
1944                             ha->host_no));
1945                         return (rval);
1946                 }
1947         }
1948
1949         save_flags = flags = ha->dpc_flags;
1950         DEBUG(printk("scsi(%ld): Configure loop -- dpc flags =0x%lx\n",
1951             ha->host_no, flags));
1952
1953         /*
1954          * If we have both an RSCN and PORT UPDATE pending then handle them
1955          * both at the same time.
1956          */
1957         clear_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1958         clear_bit(RSCN_UPDATE, &ha->dpc_flags);
1959
1960         /* Determine what we need to do */
1961         if (ha->current_topology == ISP_CFG_FL &&
1962             (test_bit(LOCAL_LOOP_UPDATE, &flags))) {
1963
1964                 ha->flags.rscn_queue_overflow = 1;
1965                 set_bit(RSCN_UPDATE, &flags);
1966
1967         } else if (ha->current_topology == ISP_CFG_F &&
1968             (test_bit(LOCAL_LOOP_UPDATE, &flags))) {
1969
1970                 ha->flags.rscn_queue_overflow = 1;
1971                 set_bit(RSCN_UPDATE, &flags);
1972                 clear_bit(LOCAL_LOOP_UPDATE, &flags);
1973
1974         } else if (ha->current_topology == ISP_CFG_N) {
1975                 clear_bit(RSCN_UPDATE, &flags);
1976
1977         } else if (!ha->flags.online ||
1978             (test_bit(ABORT_ISP_ACTIVE, &flags))) {
1979
1980                 ha->flags.rscn_queue_overflow = 1;
1981                 set_bit(RSCN_UPDATE, &flags);
1982                 set_bit(LOCAL_LOOP_UPDATE, &flags);
1983         }
1984
1985         if (test_bit(LOCAL_LOOP_UPDATE, &flags)) {
1986                 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
1987                         rval = QLA_FUNCTION_FAILED;
1988                 } else {
1989                         rval = qla2x00_configure_local_loop(ha);
1990                 }
1991         }
1992
1993         if (rval == QLA_SUCCESS && test_bit(RSCN_UPDATE, &flags)) {
1994                 if (LOOP_TRANSITION(ha)) {
1995                         rval = QLA_FUNCTION_FAILED;
1996                 } else {
1997                         rval = qla2x00_configure_fabric(ha);
1998                 }
1999         }
2000
2001         if (rval == QLA_SUCCESS) {
2002                 if (atomic_read(&ha->loop_down_timer) ||
2003                     test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2004                         rval = QLA_FUNCTION_FAILED;
2005                 } else {
2006                         atomic_set(&ha->loop_state, LOOP_READY);
2007
2008                         DEBUG(printk("scsi(%ld): LOOP READY\n", ha->host_no));
2009                 }
2010         }
2011
2012         if (rval) {
2013                 DEBUG2_3(printk("%s(%ld): *** FAILED ***\n",
2014                     __func__, ha->host_no));
2015         } else {
2016                 DEBUG3(printk("%s: exiting normally\n", __func__));
2017         }
2018
2019         /* Restore state if a resync event occured during processing */
2020         if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2021                 if (test_bit(LOCAL_LOOP_UPDATE, &save_flags))
2022                         set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
2023                 if (test_bit(RSCN_UPDATE, &save_flags)) {
2024                         ha->flags.rscn_queue_overflow = 1;
2025                         set_bit(RSCN_UPDATE, &ha->dpc_flags);
2026                 }
2027         }
2028
2029         return (rval);
2030 }
2031
2032
2033
2034 /*
2035  * qla2x00_configure_local_loop
2036  *      Updates Fibre Channel Device Database with local loop devices.
2037  *
2038  * Input:
2039  *      ha = adapter block pointer.
2040  *
2041  * Returns:
2042  *      0 = success.
2043  */
2044 static int
2045 qla2x00_configure_local_loop(scsi_qla_host_t *ha)
2046 {
2047         int             rval, rval2;
2048         int             found_devs;
2049         int             found;
2050         fc_port_t       *fcport, *new_fcport;
2051
2052         uint16_t        index;
2053         uint16_t        entries;
2054         char            *id_iter;
2055         uint16_t        loop_id;
2056         uint8_t         domain, area, al_pa;
2057         scsi_qla_host_t *pha = to_qla_parent(ha);
2058
2059         found_devs = 0;
2060         new_fcport = NULL;
2061         entries = MAX_FIBRE_DEVICES;
2062
2063         DEBUG3(printk("scsi(%ld): Getting FCAL position map\n", ha->host_no));
2064         DEBUG3(qla2x00_get_fcal_position_map(ha, NULL));
2065
2066         /* Get list of logged in devices. */
2067         memset(ha->gid_list, 0, GID_LIST_SIZE);
2068         rval = qla2x00_get_id_list(ha, ha->gid_list, ha->gid_list_dma,
2069             &entries);
2070         if (rval != QLA_SUCCESS)
2071                 goto cleanup_allocation;
2072
2073         DEBUG3(printk("scsi(%ld): Entries in ID list (%d)\n",
2074             ha->host_no, entries));
2075         DEBUG3(qla2x00_dump_buffer((uint8_t *)ha->gid_list,
2076             entries * sizeof(struct gid_list_info)));
2077
2078         /* Allocate temporary fcport for any new fcports discovered. */
2079         new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
2080         if (new_fcport == NULL) {
2081                 rval = QLA_MEMORY_ALLOC_FAILED;
2082                 goto cleanup_allocation;
2083         }
2084         new_fcport->flags &= ~FCF_FABRIC_DEVICE;
2085
2086         /*
2087          * Mark local devices that were present with FCF_DEVICE_LOST for now.
2088          */
2089         list_for_each_entry(fcport, &pha->fcports, list) {
2090                 if (fcport->vp_idx != ha->vp_idx)
2091                         continue;
2092
2093                 if (atomic_read(&fcport->state) == FCS_ONLINE &&
2094                     fcport->port_type != FCT_BROADCAST &&
2095                     (fcport->flags & FCF_FABRIC_DEVICE) == 0) {
2096
2097                         DEBUG(printk("scsi(%ld): Marking port lost, "
2098                             "loop_id=0x%04x\n",
2099                             ha->host_no, fcport->loop_id));
2100
2101                         atomic_set(&fcport->state, FCS_DEVICE_LOST);
2102                         fcport->flags &= ~FCF_FARP_DONE;
2103                 }
2104         }
2105
2106         /* Add devices to port list. */
2107         id_iter = (char *)ha->gid_list;
2108         for (index = 0; index < entries; index++) {
2109                 domain = ((struct gid_list_info *)id_iter)->domain;
2110                 area = ((struct gid_list_info *)id_iter)->area;
2111                 al_pa = ((struct gid_list_info *)id_iter)->al_pa;
2112                 if (IS_QLA2100(ha) || IS_QLA2200(ha))
2113                         loop_id = (uint16_t)
2114                             ((struct gid_list_info *)id_iter)->loop_id_2100;
2115                 else
2116                         loop_id = le16_to_cpu(
2117                             ((struct gid_list_info *)id_iter)->loop_id);
2118                 id_iter += ha->gid_list_info_size;
2119
2120                 /* Bypass reserved domain fields. */
2121                 if ((domain & 0xf0) == 0xf0)
2122                         continue;
2123
2124                 /* Bypass if not same domain and area of adapter. */
2125                 if (area && domain &&
2126                     (area != ha->d_id.b.area || domain != ha->d_id.b.domain))
2127                         continue;
2128
2129                 /* Bypass invalid local loop ID. */
2130                 if (loop_id > LAST_LOCAL_LOOP_ID)
2131                         continue;
2132
2133                 /* Fill in member data. */
2134                 new_fcport->d_id.b.domain = domain;
2135                 new_fcport->d_id.b.area = area;
2136                 new_fcport->d_id.b.al_pa = al_pa;
2137                 new_fcport->loop_id = loop_id;
2138                 new_fcport->vp_idx = ha->vp_idx;
2139                 rval2 = qla2x00_get_port_database(ha, new_fcport, 0);
2140                 if (rval2 != QLA_SUCCESS) {
2141                         DEBUG2(printk("scsi(%ld): Failed to retrieve fcport "
2142                             "information -- get_port_database=%x, "
2143                             "loop_id=0x%04x\n",
2144                             ha->host_no, rval2, new_fcport->loop_id));
2145                         DEBUG2(printk("scsi(%ld): Scheduling resync...\n",
2146                             ha->host_no));
2147                         set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2148                         continue;
2149                 }
2150
2151                 /* Check for matching device in port list. */
2152                 found = 0;
2153                 fcport = NULL;
2154                 list_for_each_entry(fcport, &pha->fcports, list) {
2155                         if (fcport->vp_idx != ha->vp_idx)
2156                                 continue;
2157
2158                         if (memcmp(new_fcport->port_name, fcport->port_name,
2159                             WWN_SIZE))
2160                                 continue;
2161
2162                         fcport->flags &= ~(FCF_FABRIC_DEVICE |
2163                             FCF_PERSISTENT_BOUND);
2164                         fcport->loop_id = new_fcport->loop_id;
2165                         fcport->port_type = new_fcport->port_type;
2166                         fcport->d_id.b24 = new_fcport->d_id.b24;
2167                         memcpy(fcport->node_name, new_fcport->node_name,
2168                             WWN_SIZE);
2169
2170                         found++;
2171                         break;
2172                 }
2173
2174                 if (!found) {
2175                         /* New device, add to fcports list. */
2176                         new_fcport->flags &= ~FCF_PERSISTENT_BOUND;
2177                         if (ha->parent) {
2178                                 new_fcport->ha = ha;
2179                                 new_fcport->vp_idx = ha->vp_idx;
2180                                 list_add_tail(&new_fcport->vp_fcport,
2181                                     &ha->vp_fcports);
2182                         }
2183                         list_add_tail(&new_fcport->list, &pha->fcports);
2184
2185                         /* Allocate a new replacement fcport. */
2186                         fcport = new_fcport;
2187                         new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
2188                         if (new_fcport == NULL) {
2189                                 rval = QLA_MEMORY_ALLOC_FAILED;
2190                                 goto cleanup_allocation;
2191                         }
2192                         new_fcport->flags &= ~FCF_FABRIC_DEVICE;
2193                 }
2194
2195                 /* Base iIDMA settings on HBA port speed. */
2196                 fcport->fp_speed = ha->link_data_rate;
2197
2198                 qla2x00_update_fcport(ha, fcport);
2199
2200                 found_devs++;
2201         }
2202
2203 cleanup_allocation:
2204         kfree(new_fcport);
2205
2206         if (rval != QLA_SUCCESS) {
2207                 DEBUG2(printk("scsi(%ld): Configure local loop error exit: "
2208                     "rval=%x\n", ha->host_no, rval));
2209         }
2210
2211         if (found_devs) {
2212                 ha->device_flags |= DFLG_LOCAL_DEVICES;
2213                 ha->device_flags &= ~DFLG_RETRY_LOCAL_DEVICES;
2214         }
2215
2216         return (rval);
2217 }
2218
2219 static void
2220 qla2x00_iidma_fcport(scsi_qla_host_t *ha, fc_port_t *fcport)
2221 {
2222 #define LS_UNKNOWN      2
2223         static char *link_speeds[5] = { "1", "2", "?", "4", "8" };
2224         int rval;
2225         uint16_t mb[6];
2226
2227         if (!IS_IIDMA_CAPABLE(ha))
2228                 return;
2229
2230         if (fcport->fp_speed == PORT_SPEED_UNKNOWN ||
2231             fcport->fp_speed > ha->link_data_rate)
2232                 return;
2233
2234         rval = qla2x00_set_idma_speed(ha, fcport->loop_id, fcport->fp_speed,
2235             mb);
2236         if (rval != QLA_SUCCESS) {
2237                 DEBUG2(printk("scsi(%ld): Unable to adjust iIDMA "
2238                     "%02x%02x%02x%02x%02x%02x%02x%02x -- %04x %x %04x %04x.\n",
2239                     ha->host_no, fcport->port_name[0], fcport->port_name[1],
2240                     fcport->port_name[2], fcport->port_name[3],
2241                     fcport->port_name[4], fcport->port_name[5],
2242                     fcport->port_name[6], fcport->port_name[7], rval,
2243                     fcport->fp_speed, mb[0], mb[1]));
2244         } else {
2245                 DEBUG2(qla_printk(KERN_INFO, ha,
2246                     "iIDMA adjusted to %s GB/s on "
2247                     "%02x%02x%02x%02x%02x%02x%02x%02x.\n",
2248                     link_speeds[fcport->fp_speed], fcport->port_name[0],
2249                     fcport->port_name[1], fcport->port_name[2],
2250                     fcport->port_name[3], fcport->port_name[4],
2251                     fcport->port_name[5], fcport->port_name[6],
2252                     fcport->port_name[7]));
2253         }
2254 }
2255
2256 static void
2257 qla2x00_reg_remote_port(scsi_qla_host_t *ha, fc_port_t *fcport)
2258 {
2259         struct fc_rport_identifiers rport_ids;
2260         struct fc_rport *rport;
2261
2262         if (fcport->drport)
2263                 qla2x00_rport_del(fcport);
2264
2265         rport_ids.node_name = wwn_to_u64(fcport->node_name);
2266         rport_ids.port_name = wwn_to_u64(fcport->port_name);
2267         rport_ids.port_id = fcport->d_id.b.domain << 16 |
2268             fcport->d_id.b.area << 8 | fcport->d_id.b.al_pa;
2269         rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
2270         fcport->rport = rport = fc_remote_port_add(ha->host, 0, &rport_ids);
2271         if (!rport) {
2272                 qla_printk(KERN_WARNING, ha,
2273                     "Unable to allocate fc remote port!\n");
2274                 return;
2275         }
2276         spin_lock_irq(fcport->ha->host->host_lock);
2277         *((fc_port_t **)rport->dd_data) = fcport;
2278         spin_unlock_irq(fcport->ha->host->host_lock);
2279
2280         rport->supported_classes = fcport->supported_classes;
2281
2282         rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
2283         if (fcport->port_type == FCT_INITIATOR)
2284                 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
2285         if (fcport->port_type == FCT_TARGET)
2286                 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
2287         fc_remote_port_rolechg(rport, rport_ids.roles);
2288 }
2289
2290 /*
2291  * qla2x00_update_fcport
2292  *      Updates device on list.
2293  *
2294  * Input:
2295  *      ha = adapter block pointer.
2296  *      fcport = port structure pointer.
2297  *
2298  * Return:
2299  *      0  - Success
2300  *  BIT_0 - error
2301  *
2302  * Context:
2303  *      Kernel context.
2304  */
2305 void
2306 qla2x00_update_fcport(scsi_qla_host_t *ha, fc_port_t *fcport)
2307 {
2308         scsi_qla_host_t *pha = to_qla_parent(ha);
2309
2310         fcport->ha = ha;
2311         fcport->login_retry = 0;
2312         fcport->port_login_retry_count = pha->port_down_retry_count *
2313             PORT_RETRY_TIME;
2314         atomic_set(&fcport->port_down_timer, pha->port_down_retry_count *
2315             PORT_RETRY_TIME);
2316         fcport->flags &= ~FCF_LOGIN_NEEDED;
2317
2318         qla2x00_iidma_fcport(ha, fcport);
2319
2320         atomic_set(&fcport->state, FCS_ONLINE);
2321
2322         qla2x00_reg_remote_port(ha, fcport);
2323 }
2324
2325 /*
2326  * qla2x00_configure_fabric
2327  *      Setup SNS devices with loop ID's.
2328  *
2329  * Input:
2330  *      ha = adapter block pointer.
2331  *
2332  * Returns:
2333  *      0 = success.
2334  *      BIT_0 = error
2335  */
2336 static int
2337 qla2x00_configure_fabric(scsi_qla_host_t *ha)
2338 {
2339         int     rval, rval2;
2340         fc_port_t       *fcport, *fcptemp;
2341         uint16_t        next_loopid;
2342         uint16_t        mb[MAILBOX_REGISTER_COUNT];
2343         uint16_t        loop_id;
2344         LIST_HEAD(new_fcports);
2345         scsi_qla_host_t *pha = to_qla_parent(ha);
2346
2347         /* If FL port exists, then SNS is present */
2348         if (IS_FWI2_CAPABLE(ha))
2349                 loop_id = NPH_F_PORT;
2350         else
2351                 loop_id = SNS_FL_PORT;
2352         rval = qla2x00_get_port_name(ha, loop_id, ha->fabric_node_name, 1);
2353         if (rval != QLA_SUCCESS) {
2354                 DEBUG2(printk("scsi(%ld): MBC_GET_PORT_NAME Failed, No FL "
2355                     "Port\n", ha->host_no));
2356
2357                 ha->device_flags &= ~SWITCH_FOUND;
2358                 return (QLA_SUCCESS);
2359         }
2360         ha->device_flags |= SWITCH_FOUND;
2361
2362         /* Mark devices that need re-synchronization. */
2363         rval2 = qla2x00_device_resync(ha);
2364         if (rval2 == QLA_RSCNS_HANDLED) {
2365                 /* No point doing the scan, just continue. */
2366                 return (QLA_SUCCESS);
2367         }
2368         do {
2369                 /* FDMI support. */
2370                 if (ql2xfdmienable &&
2371                     test_and_clear_bit(REGISTER_FDMI_NEEDED, &ha->dpc_flags))
2372                         qla2x00_fdmi_register(ha);
2373
2374                 /* Ensure we are logged into the SNS. */
2375                 if (IS_FWI2_CAPABLE(ha))
2376                         loop_id = NPH_SNS;
2377                 else
2378                         loop_id = SIMPLE_NAME_SERVER;
2379                 ha->isp_ops->fabric_login(ha, loop_id, 0xff, 0xff,
2380                     0xfc, mb, BIT_1 | BIT_0);
2381                 if (mb[0] != MBS_COMMAND_COMPLETE) {
2382                         DEBUG2(qla_printk(KERN_INFO, ha,
2383                             "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x "
2384                             "mb[2]=%x mb[6]=%x mb[7]=%x\n", loop_id,
2385                             mb[0], mb[1], mb[2], mb[6], mb[7]));
2386                         return (QLA_SUCCESS);
2387                 }
2388
2389                 if (test_and_clear_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags)) {
2390                         if (qla2x00_rft_id(ha)) {
2391                                 /* EMPTY */
2392                                 DEBUG2(printk("scsi(%ld): Register FC-4 "
2393                                     "TYPE failed.\n", ha->host_no));
2394                         }
2395                         if (qla2x00_rff_id(ha)) {
2396                                 /* EMPTY */
2397                                 DEBUG2(printk("scsi(%ld): Register FC-4 "
2398                                     "Features failed.\n", ha->host_no));
2399                         }
2400                         if (qla2x00_rnn_id(ha)) {
2401                                 /* EMPTY */
2402                                 DEBUG2(printk("scsi(%ld): Register Node Name "
2403                                     "failed.\n", ha->host_no));
2404                         } else if (qla2x00_rsnn_nn(ha)) {
2405                                 /* EMPTY */
2406                                 DEBUG2(printk("scsi(%ld): Register Symbolic "
2407                                     "Node Name failed.\n", ha->host_no));
2408                         }
2409                 }
2410
2411                 rval = qla2x00_find_all_fabric_devs(ha, &new_fcports);
2412                 if (rval != QLA_SUCCESS)
2413                         break;
2414
2415                 /*
2416                  * Logout all previous fabric devices marked lost, except
2417                  * tape devices.
2418                  */
2419                 list_for_each_entry(fcport, &pha->fcports, list) {
2420                         if (fcport->vp_idx !=ha->vp_idx)
2421                                 continue;
2422
2423                         if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2424                                 break;
2425
2426                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0)
2427                                 continue;
2428
2429                         if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2430                                 qla2x00_mark_device_lost(ha, fcport,
2431                                     ql2xplogiabsentdevice, 0);
2432                                 if (fcport->loop_id != FC_NO_LOOP_ID &&
2433                                     (fcport->flags & FCF_TAPE_PRESENT) == 0 &&
2434                                     fcport->port_type != FCT_INITIATOR &&
2435                                     fcport->port_type != FCT_BROADCAST) {
2436                                         ha->isp_ops->fabric_logout(ha,
2437                                             fcport->loop_id,
2438                                             fcport->d_id.b.domain,
2439                                             fcport->d_id.b.area,
2440                                             fcport->d_id.b.al_pa);
2441                                         fcport->loop_id = FC_NO_LOOP_ID;
2442                                 }
2443                         }
2444                 }
2445
2446                 /* Starting free loop ID. */
2447                 next_loopid = pha->min_external_loopid;
2448
2449                 /*
2450                  * Scan through our port list and login entries that need to be
2451                  * logged in.
2452                  */
2453                 list_for_each_entry(fcport, &pha->fcports, list) {
2454                         if (fcport->vp_idx != ha->vp_idx)
2455                                 continue;
2456
2457                         if (atomic_read(&ha->loop_down_timer) ||
2458                             test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2459                                 break;
2460
2461                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 ||
2462                             (fcport->flags & FCF_LOGIN_NEEDED) == 0)
2463                                 continue;
2464
2465                         if (fcport->loop_id == FC_NO_LOOP_ID) {
2466                                 fcport->loop_id = next_loopid;
2467                                 rval = qla2x00_find_new_loop_id(
2468                                     to_qla_parent(ha), fcport);
2469                                 if (rval != QLA_SUCCESS) {
2470                                         /* Ran out of IDs to use */
2471                                         break;
2472                                 }
2473                         }
2474                         /* Login and update database */
2475                         qla2x00_fabric_dev_login(ha, fcport, &next_loopid);
2476                 }
2477
2478                 /* Exit if out of loop IDs. */
2479                 if (rval != QLA_SUCCESS) {
2480                         break;
2481                 }
2482
2483                 /*
2484                  * Login and add the new devices to our port list.
2485                  */
2486                 list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) {
2487                         if (atomic_read(&ha->loop_down_timer) ||
2488                             test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2489                                 break;
2490
2491                         /* Find a new loop ID to use. */
2492                         fcport->loop_id = next_loopid;
2493                         rval = qla2x00_find_new_loop_id(to_qla_parent(ha),
2494                             fcport);
2495                         if (rval != QLA_SUCCESS) {
2496                                 /* Ran out of IDs to use */
2497                                 break;
2498                         }
2499
2500                         /* Login and update database */
2501                         qla2x00_fabric_dev_login(ha, fcport, &next_loopid);
2502
2503                         if (ha->parent) {
2504                                 fcport->ha = ha;
2505                                 fcport->vp_idx = ha->vp_idx;
2506                                 list_add_tail(&fcport->vp_fcport,
2507                                     &ha->vp_fcports);
2508                                 list_move_tail(&fcport->list,
2509                                     &ha->parent->fcports);
2510                         } else
2511                                 list_move_tail(&fcport->list, &ha->fcports);
2512                 }
2513         } while (0);
2514
2515         /* Free all new device structures not processed. */
2516         list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) {
2517                 list_del(&fcport->list);
2518                 kfree(fcport);
2519         }
2520
2521         if (rval) {
2522                 DEBUG2(printk("scsi(%ld): Configure fabric error exit: "
2523                     "rval=%d\n", ha->host_no, rval));
2524         }
2525
2526         return (rval);
2527 }
2528
2529
2530 /*
2531  * qla2x00_find_all_fabric_devs
2532  *
2533  * Input:
2534  *      ha = adapter block pointer.
2535  *      dev = database device entry pointer.
2536  *
2537  * Returns:
2538  *      0 = success.
2539  *
2540  * Context:
2541  *      Kernel context.
2542  */
2543 static int
2544 qla2x00_find_all_fabric_devs(scsi_qla_host_t *ha, struct list_head *new_fcports)
2545 {
2546         int             rval;
2547         uint16_t        loop_id;
2548         fc_port_t       *fcport, *new_fcport, *fcptemp;
2549         int             found;
2550
2551         sw_info_t       *swl;
2552         int             swl_idx;
2553         int             first_dev, last_dev;
2554         port_id_t       wrap, nxt_d_id;
2555         int             vp_index;
2556         int             empty_vp_index;
2557         int             found_vp;
2558         scsi_qla_host_t *vha;
2559         scsi_qla_host_t *pha = to_qla_parent(ha);
2560
2561         rval = QLA_SUCCESS;
2562
2563         /* Try GID_PT to get device list, else GAN. */
2564         swl = kcalloc(MAX_FIBRE_DEVICES, sizeof(sw_info_t), GFP_KERNEL);
2565         if (!swl) {
2566                 /*EMPTY*/
2567                 DEBUG2(printk("scsi(%ld): GID_PT allocations failed, fallback "
2568                     "on GA_NXT\n", ha->host_no));
2569         } else {
2570                 if (qla2x00_gid_pt(ha, swl) != QLA_SUCCESS) {
2571                         kfree(swl);
2572                         swl = NULL;
2573                 } else if (qla2x00_gpn_id(ha, swl) != QLA_SUCCESS) {
2574                         kfree(swl);
2575                         swl = NULL;
2576                 } else if (qla2x00_gnn_id(ha, swl) != QLA_SUCCESS) {
2577                         kfree(swl);
2578                         swl = NULL;
2579                 } else if (ql2xiidmaenable &&
2580                     qla2x00_gfpn_id(ha, swl) == QLA_SUCCESS) {
2581                         qla2x00_gpsc(ha, swl);
2582                 }
2583         }
2584         swl_idx = 0;
2585
2586         /* Allocate temporary fcport for any new fcports discovered. */
2587         new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
2588         if (new_fcport == NULL) {
2589                 kfree(swl);
2590                 return (QLA_MEMORY_ALLOC_FAILED);
2591         }
2592         new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
2593         new_fcport->vp_idx = ha->vp_idx;
2594         /* Set start port ID scan at adapter ID. */
2595         first_dev = 1;
2596         last_dev = 0;
2597
2598         /* Starting free loop ID. */
2599         loop_id = pha->min_external_loopid;
2600         for (; loop_id <= ha->last_loop_id; loop_id++) {
2601                 if (qla2x00_is_reserved_id(ha, loop_id))
2602                         continue;
2603
2604                 if (atomic_read(&ha->loop_down_timer) || LOOP_TRANSITION(ha))
2605                         break;
2606
2607                 if (swl != NULL) {
2608                         if (last_dev) {
2609                                 wrap.b24 = new_fcport->d_id.b24;
2610                         } else {
2611                                 new_fcport->d_id.b24 = swl[swl_idx].d_id.b24;
2612                                 memcpy(new_fcport->node_name,
2613                                     swl[swl_idx].node_name, WWN_SIZE);
2614                                 memcpy(new_fcport->port_name,
2615                                     swl[swl_idx].port_name, WWN_SIZE);
2616                                 memcpy(new_fcport->fabric_port_name,
2617                                     swl[swl_idx].fabric_port_name, WWN_SIZE);
2618                                 new_fcport->fp_speed = swl[swl_idx].fp_speed;
2619
2620                                 if (swl[swl_idx].d_id.b.rsvd_1 != 0) {
2621                                         last_dev = 1;
2622                                 }
2623                                 swl_idx++;
2624                         }
2625                 } else {
2626                         /* Send GA_NXT to the switch */
2627                         rval = qla2x00_ga_nxt(ha, new_fcport);
2628                         if (rval != QLA_SUCCESS) {
2629                                 qla_printk(KERN_WARNING, ha,
2630                                     "SNS scan failed -- assuming zero-entry "
2631                                     "result...\n");
2632                                 list_for_each_entry_safe(fcport, fcptemp,
2633                                     new_fcports, list) {
2634                                         list_del(&fcport->list);
2635                                         kfree(fcport);
2636                                 }
2637                                 rval = QLA_SUCCESS;
2638                                 break;
2639                         }
2640                 }
2641
2642                 /* If wrap on switch device list, exit. */
2643                 if (first_dev) {
2644                         wrap.b24 = new_fcport->d_id.b24;
2645                         first_dev = 0;
2646                 } else if (new_fcport->d_id.b24 == wrap.b24) {
2647                         DEBUG2(printk("scsi(%ld): device wrap (%02x%02x%02x)\n",
2648                             ha->host_no, new_fcport->d_id.b.domain,
2649                             new_fcport->d_id.b.area, new_fcport->d_id.b.al_pa));
2650                         break;
2651                 }
2652
2653                 /* Bypass if same physical adapter. */
2654                 if (new_fcport->d_id.b24 == pha->d_id.b24)
2655                         continue;
2656
2657                 /* Bypass virtual ports of the same host. */
2658                 if (pha->num_vhosts) {
2659                         for_each_mapped_vp_idx(pha, vp_index) {
2660                                 empty_vp_index = 1;
2661                                 found_vp = 0;
2662                                 list_for_each_entry(vha, &pha->vp_list,
2663                                     vp_list) {
2664                                         if (vp_index == vha->vp_idx) {
2665                                                 empty_vp_index = 0;
2666                                                 found_vp = 1;
2667                                                 break;
2668                                         }
2669                                 }
2670
2671                                 if (empty_vp_index)
2672                                         continue;
2673
2674                                 if (found_vp &&
2675                                     new_fcport->d_id.b24 == vha->d_id.b24)
2676                                         break;
2677                         }
2678
2679                         if (vp_index <= pha->max_npiv_vports)
2680                                 continue;
2681                 }
2682
2683                 /* Bypass if same domain and area of adapter. */
2684                 if (((new_fcport->d_id.b24 & 0xffff00) ==
2685                     (ha->d_id.b24 & 0xffff00)) && ha->current_topology ==
2686                         ISP_CFG_FL)
2687                             continue;
2688
2689                 /* Bypass reserved domain fields. */
2690                 if ((new_fcport->d_id.b.domain & 0xf0) == 0xf0)
2691                         continue;
2692
2693                 /* Locate matching device in database. */
2694                 found = 0;
2695                 list_for_each_entry(fcport, &pha->fcports, list) {
2696                         if (new_fcport->vp_idx != fcport->vp_idx)
2697                                 continue;
2698                         if (memcmp(new_fcport->port_name, fcport->port_name,
2699                             WWN_SIZE))
2700                                 continue;
2701
2702                         found++;
2703
2704                         /* Update port state. */
2705                         memcpy(fcport->fabric_port_name,
2706                             new_fcport->fabric_port_name, WWN_SIZE);
2707                         fcport->fp_speed = new_fcport->fp_speed;
2708
2709                         /*
2710                          * If address the same and state FCS_ONLINE, nothing
2711                          * changed.
2712                          */
2713                         if (fcport->d_id.b24 == new_fcport->d_id.b24 &&
2714                             atomic_read(&fcport->state) == FCS_ONLINE) {
2715                                 break;
2716                         }
2717
2718                         /*
2719                          * If device was not a fabric device before.
2720                          */
2721                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) {
2722                                 fcport->d_id.b24 = new_fcport->d_id.b24;
2723                                 fcport->loop_id = FC_NO_LOOP_ID;
2724                                 fcport->flags |= (FCF_FABRIC_DEVICE |
2725                                     FCF_LOGIN_NEEDED);
2726                                 fcport->flags &= ~FCF_PERSISTENT_BOUND;
2727                                 break;
2728                         }
2729
2730                         /*
2731                          * Port ID changed or device was marked to be updated;
2732                          * Log it out if still logged in and mark it for
2733                          * relogin later.
2734                          */
2735                         fcport->d_id.b24 = new_fcport->d_id.b24;
2736                         fcport->flags |= FCF_LOGIN_NEEDED;
2737                         if (fcport->loop_id != FC_NO_LOOP_ID &&
2738                             (fcport->flags & FCF_TAPE_PRESENT) == 0 &&
2739                             fcport->port_type != FCT_INITIATOR &&
2740                             fcport->port_type != FCT_BROADCAST) {
2741                                 ha->isp_ops->fabric_logout(ha, fcport->loop_id,
2742                                     fcport->d_id.b.domain, fcport->d_id.b.area,
2743                                     fcport->d_id.b.al_pa);
2744                                 fcport->loop_id = FC_NO_LOOP_ID;
2745                         }
2746
2747                         break;
2748                 }
2749
2750                 if (found)
2751                         continue;
2752
2753                 /* If device was not in our fcports list, then add it. */
2754                 list_add_tail(&new_fcport->list, new_fcports);
2755
2756                 /* Allocate a new replacement fcport. */
2757                 nxt_d_id.b24 = new_fcport->d_id.b24;
2758                 new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
2759                 if (new_fcport == NULL) {
2760                         kfree(swl);
2761                         return (QLA_MEMORY_ALLOC_FAILED);
2762                 }
2763                 new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
2764                 new_fcport->d_id.b24 = nxt_d_id.b24;
2765                 new_fcport->vp_idx = ha->vp_idx;
2766         }
2767
2768         kfree(swl);
2769         kfree(new_fcport);
2770
2771         if (!list_empty(new_fcports))
2772                 ha->device_flags |= DFLG_FABRIC_DEVICES;
2773
2774         return (rval);
2775 }
2776
2777 /*
2778  * qla2x00_find_new_loop_id
2779  *      Scan through our port list and find a new usable loop ID.
2780  *
2781  * Input:
2782  *      ha:     adapter state pointer.
2783  *      dev:    port structure pointer.
2784  *
2785  * Returns:
2786  *      qla2x00 local function return status code.
2787  *
2788  * Context:
2789  *      Kernel context.
2790  */
2791 static int
2792 qla2x00_find_new_loop_id(scsi_qla_host_t *ha, fc_port_t *dev)
2793 {
2794         int     rval;
2795         int     found;
2796         fc_port_t *fcport;
2797         uint16_t first_loop_id;
2798         scsi_qla_host_t *pha = to_qla_parent(ha);
2799
2800         rval = QLA_SUCCESS;
2801
2802         /* Save starting loop ID. */
2803         first_loop_id = dev->loop_id;
2804
2805         for (;;) {
2806                 /* Skip loop ID if already used by adapter. */
2807                 if (dev->loop_id == ha->loop_id) {
2808                         dev->loop_id++;
2809                 }
2810
2811                 /* Skip reserved loop IDs. */
2812                 while (qla2x00_is_reserved_id(ha, dev->loop_id)) {
2813                         dev->loop_id++;
2814                 }
2815
2816                 /* Reset loop ID if passed the end. */
2817                 if (dev->loop_id > ha->last_loop_id) {
2818                         /* first loop ID. */
2819                         dev->loop_id = ha->min_external_loopid;
2820                 }
2821
2822                 /* Check for loop ID being already in use. */
2823                 found = 0;
2824                 fcport = NULL;
2825                 list_for_each_entry(fcport, &pha->fcports, list) {
2826                         if (fcport->loop_id == dev->loop_id && fcport != dev) {
2827                                 /* ID possibly in use */
2828                                 found++;
2829                                 break;
2830                         }
2831                 }
2832
2833                 /* If not in use then it is free to use. */
2834                 if (!found) {
2835                         break;
2836                 }
2837
2838                 /* ID in use. Try next value. */
2839                 dev->loop_id++;
2840
2841                 /* If wrap around. No free ID to use. */
2842                 if (dev->loop_id == first_loop_id) {
2843                         dev->loop_id = FC_NO_LOOP_ID;
2844                         rval = QLA_FUNCTION_FAILED;
2845                         break;
2846                 }
2847         }
2848
2849         return (rval);
2850 }
2851
2852 /*
2853  * qla2x00_device_resync
2854  *      Marks devices in the database that needs resynchronization.
2855  *
2856  * Input:
2857  *      ha = adapter block pointer.
2858  *
2859  * Context:
2860  *      Kernel context.
2861  */
2862 static int
2863 qla2x00_device_resync(scsi_qla_host_t *ha)
2864 {
2865         int     rval;
2866         uint32_t mask;
2867         fc_port_t *fcport;
2868         uint32_t rscn_entry;
2869         uint8_t rscn_out_iter;
2870         uint8_t format;
2871         port_id_t d_id;
2872         scsi_qla_host_t *pha = to_qla_parent(ha);
2873
2874         rval = QLA_RSCNS_HANDLED;
2875
2876         while (ha->rscn_out_ptr != ha->rscn_in_ptr ||
2877             ha->flags.rscn_queue_overflow) {
2878
2879                 rscn_entry = ha->rscn_queue[ha->rscn_out_ptr];
2880                 format = MSB(MSW(rscn_entry));
2881                 d_id.b.domain = LSB(MSW(rscn_entry));
2882                 d_id.b.area = MSB(LSW(rscn_entry));
2883                 d_id.b.al_pa = LSB(LSW(rscn_entry));
2884
2885                 DEBUG(printk("scsi(%ld): RSCN queue entry[%d] = "
2886                     "[%02x/%02x%02x%02x].\n",
2887                     ha->host_no, ha->rscn_out_ptr, format, d_id.b.domain,
2888                     d_id.b.area, d_id.b.al_pa));
2889
2890                 ha->rscn_out_ptr++;
2891                 if (ha->rscn_out_ptr == MAX_RSCN_COUNT)
2892                         ha->rscn_out_ptr = 0;
2893
2894                 /* Skip duplicate entries. */
2895                 for (rscn_out_iter = ha->rscn_out_ptr;
2896                     !ha->flags.rscn_queue_overflow &&
2897                     rscn_out_iter != ha->rscn_in_ptr;
2898                     rscn_out_iter = (rscn_out_iter ==
2899                         (MAX_RSCN_COUNT - 1)) ? 0: rscn_out_iter + 1) {
2900
2901                         if (rscn_entry != ha->rscn_queue[rscn_out_iter])
2902                                 break;
2903
2904                         DEBUG(printk("scsi(%ld): Skipping duplicate RSCN queue "
2905                             "entry found at [%d].\n", ha->host_no,
2906                             rscn_out_iter));
2907
2908                         ha->rscn_out_ptr = rscn_out_iter;
2909                 }
2910
2911                 /* Queue overflow, set switch default case. */
2912                 if (ha->flags.rscn_queue_overflow) {
2913                         DEBUG(printk("scsi(%ld): device_resync: rscn "
2914                             "overflow.\n", ha->host_no));
2915
2916                         format = 3;
2917                         ha->flags.rscn_queue_overflow = 0;
2918                 }
2919
2920                 switch (format) {
2921                 case 0:
2922                         mask = 0xffffff;
2923                         break;
2924                 case 1:
2925                         mask = 0xffff00;
2926                         break;
2927                 case 2:
2928                         mask = 0xff0000;
2929                         break;
2930                 default:
2931                         mask = 0x0;
2932                         d_id.b24 = 0;
2933                         ha->rscn_out_ptr = ha->rscn_in_ptr;
2934                         break;
2935                 }
2936
2937                 rval = QLA_SUCCESS;
2938
2939                 list_for_each_entry(fcport, &pha->fcports, list) {
2940                         if (fcport->vp_idx != ha->vp_idx)
2941                                 continue;
2942
2943                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 ||
2944                             (fcport->d_id.b24 & mask) != d_id.b24 ||
2945                             fcport->port_type == FCT_BROADCAST)
2946                                 continue;
2947
2948                         if (atomic_read(&fcport->state) == FCS_ONLINE) {
2949                                 if (format != 3 ||
2950                                     fcport->port_type != FCT_INITIATOR) {
2951                                         qla2x00_mark_device_lost(ha, fcport,
2952                                             0, 0);
2953                                 }
2954                         }
2955                         fcport->flags &= ~FCF_FARP_DONE;
2956                 }
2957         }
2958         return (rval);
2959 }
2960
2961 /*
2962  * qla2x00_fabric_dev_login
2963  *      Login fabric target device and update FC port database.
2964  *
2965  * Input:
2966  *      ha:             adapter state pointer.
2967  *      fcport:         port structure list pointer.
2968  *      next_loopid:    contains value of a new loop ID that can be used
2969  *                      by the next login attempt.
2970  *
2971  * Returns:
2972  *      qla2x00 local function return status code.
2973  *
2974  * Context:
2975  *      Kernel context.
2976  */
2977 static int
2978 qla2x00_fabric_dev_login(scsi_qla_host_t *ha, fc_port_t *fcport,
2979     uint16_t *next_loopid)
2980 {
2981         int     rval;
2982         int     retry;
2983         uint8_t opts;
2984
2985         rval = QLA_SUCCESS;
2986         retry = 0;
2987
2988         rval = qla2x00_fabric_login(ha, fcport, next_loopid);
2989         if (rval == QLA_SUCCESS) {
2990                 /* Send an ADISC to tape devices.*/
2991                 opts = 0;
2992                 if (fcport->flags & FCF_TAPE_PRESENT)
2993                         opts |= BIT_1;
2994                 rval = qla2x00_get_port_database(ha, fcport, opts);
2995                 if (rval != QLA_SUCCESS) {
2996                         ha->isp_ops->fabric_logout(ha, fcport->loop_id,
2997                             fcport->d_id.b.domain, fcport->d_id.b.area,
2998                             fcport->d_id.b.al_pa);
2999                         qla2x00_mark_device_lost(ha, fcport, 1, 0);
3000                 } else {
3001                         qla2x00_update_fcport(ha, fcport);
3002                 }
3003         }
3004
3005         return (rval);
3006 }
3007
3008 /*
3009  * qla2x00_fabric_login
3010  *      Issue fabric login command.
3011  *
3012  * Input:
3013  *      ha = adapter block pointer.
3014  *      device = pointer to FC device type structure.
3015  *
3016  * Returns:
3017  *      0 - Login successfully
3018  *      1 - Login failed
3019  *      2 - Initiator device
3020  *      3 - Fatal error
3021  */
3022 int
3023 qla2x00_fabric_login(scsi_qla_host_t *ha, fc_port_t *fcport,
3024     uint16_t *next_loopid)
3025 {
3026         int     rval;
3027         int     retry;
3028         uint16_t tmp_loopid;
3029         uint16_t mb[MAILBOX_REGISTER_COUNT];
3030
3031         retry = 0;
3032         tmp_loopid = 0;
3033
3034         for (;;) {
3035                 DEBUG(printk("scsi(%ld): Trying Fabric Login w/loop id 0x%04x "
3036                     "for port %02x%02x%02x.\n",
3037                     ha->host_no, fcport->loop_id, fcport->d_id.b.domain,
3038                     fcport->d_id.b.area, fcport->d_id.b.al_pa));
3039
3040                 /* Login fcport on switch. */
3041                 ha->isp_ops->fabric_login(ha, fcport->loop_id,
3042                     fcport->d_id.b.domain, fcport->d_id.b.area,
3043                     fcport->d_id.b.al_pa, mb, BIT_0);
3044                 if (mb[0] == MBS_PORT_ID_USED) {
3045                         /*
3046                          * Device has another loop ID.  The firmware team
3047                          * recommends the driver perform an implicit login with
3048                          * the specified ID again. The ID we just used is save
3049                          * here so we return with an ID that can be tried by
3050                          * the next login.
3051                          */
3052                         retry++;
3053                         tmp_loopid = fcport->loop_id;
3054                         fcport->loop_id = mb[1];
3055
3056                         DEBUG(printk("Fabric Login: port in use - next "
3057                             "loop id=0x%04x, port Id=%02x%02x%02x.\n",
3058                             fcport->loop_id, fcport->d_id.b.domain,
3059                             fcport->d_id.b.area, fcport->d_id.b.al_pa));
3060
3061                 } else if (mb[0] == MBS_COMMAND_COMPLETE) {
3062                         /*
3063                          * Login succeeded.
3064                          */
3065                         if (retry) {
3066                                 /* A retry occurred before. */
3067                                 *next_loopid = tmp_loopid;
3068                         } else {
3069                                 /*
3070                                  * No retry occurred before. Just increment the
3071                                  * ID value for next login.
3072                                  */
3073                                 *next_loopid = (fcport->loop_id + 1);
3074                         }
3075
3076                         if (mb[1] & BIT_0) {
3077                                 fcport->port_type = FCT_INITIATOR;
3078                         } else {
3079                                 fcport->port_type = FCT_TARGET;
3080                                 if (mb[1] & BIT_1) {
3081                                         fcport->flags |= FCF_TAPE_PRESENT;
3082                                 }
3083                         }
3084
3085                         if (mb[10] & BIT_0)
3086                                 fcport->supported_classes |= FC_COS_CLASS2;
3087                         if (mb[10] & BIT_1)
3088                                 fcport->supported_classes |= FC_COS_CLASS3;
3089
3090                         rval = QLA_SUCCESS;
3091                         break;
3092                 } else if (mb[0] == MBS_LOOP_ID_USED) {
3093                         /*
3094                          * Loop ID already used, try next loop ID.
3095                          */
3096                         fcport->loop_id++;
3097                         rval = qla2x00_find_new_loop_id(ha, fcport);
3098                         if (rval != QLA_SUCCESS) {
3099                                 /* Ran out of loop IDs to use */
3100                                 break;
3101                         }
3102                 } else if (mb[0] == MBS_COMMAND_ERROR) {
3103                         /*
3104                          * Firmware possibly timed out during login. If NO
3105                          * retries are left to do then the device is declared
3106                          * dead.
3107                          */
3108                         *next_loopid = fcport->loop_id;
3109                         ha->isp_ops->fabric_logout(ha, fcport->loop_id,
3110                             fcport->d_id.b.domain, fcport->d_id.b.area,
3111                             fcport->d_id.b.al_pa);
3112                         qla2x00_mark_device_lost(ha, fcport, 1, 0);
3113
3114                         rval = 1;
3115                         break;
3116                 } else {
3117                         /*
3118                          * unrecoverable / not handled error
3119                          */
3120                         DEBUG2(printk("%s(%ld): failed=%x port_id=%02x%02x%02x "
3121                             "loop_id=%x jiffies=%lx.\n",
3122                             __func__, ha->host_no, mb[0],
3123                             fcport->d_id.b.domain, fcport->d_id.b.area,
3124                             fcport->d_id.b.al_pa, fcport->loop_id, jiffies));
3125
3126                         *next_loopid = fcport->loop_id;
3127                         ha->isp_ops->fabric_logout(ha, fcport->loop_id,
3128                             fcport->d_id.b.domain, fcport->d_id.b.area,
3129                             fcport->d_id.b.al_pa);
3130                         fcport->loop_id = FC_NO_LOOP_ID;
3131                         fcport->login_retry = 0;
3132
3133                         rval = 3;
3134                         break;
3135                 }
3136         }
3137
3138         return (rval);
3139 }
3140
3141 /*
3142  * qla2x00_local_device_login
3143  *      Issue local device login command.
3144  *
3145  * Input:
3146  *      ha = adapter block pointer.
3147  *      loop_id = loop id of device to login to.
3148  *
3149  * Returns (Where's the #define!!!!):
3150  *      0 - Login successfully
3151  *      1 - Login failed
3152  *      3 - Fatal error
3153  */
3154 int
3155 qla2x00_local_device_login(scsi_qla_host_t *ha, fc_port_t *fcport)
3156 {
3157         int             rval;
3158         uint16_t        mb[MAILBOX_REGISTER_COUNT];
3159
3160         memset(mb, 0, sizeof(mb));
3161         rval = qla2x00_login_local_device(ha, fcport, mb, BIT_0);
3162         if (rval == QLA_SUCCESS) {
3163                 /* Interrogate mailbox registers for any errors */
3164                 if (mb[0] == MBS_COMMAND_ERROR)
3165                         rval = 1;
3166                 else if (mb[0] == MBS_COMMAND_PARAMETER_ERROR)
3167                         /* device not in PCB table */
3168                         rval = 3;
3169         }
3170
3171         return (rval);
3172 }
3173
3174 /*
3175  *  qla2x00_loop_resync
3176  *      Resync with fibre channel devices.
3177  *
3178  * Input:
3179  *      ha = adapter block pointer.
3180  *
3181  * Returns:
3182  *      0 = success
3183  */
3184 int
3185 qla2x00_loop_resync(scsi_qla_host_t *ha)
3186 {
3187         int   rval;
3188         uint32_t wait_time;
3189
3190         rval = QLA_SUCCESS;
3191
3192         atomic_set(&ha->loop_state, LOOP_UPDATE);
3193         clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
3194         if (ha->flags.online) {
3195                 if (!(rval = qla2x00_fw_ready(ha))) {
3196                         /* Wait at most MAX_TARGET RSCNs for a stable link. */
3197                         wait_time = 256;
3198                         do {
3199                                 atomic_set(&ha->loop_state, LOOP_UPDATE);
3200
3201                                 /* Issue a marker after FW becomes ready. */
3202                                 qla2x00_marker(ha, 0, 0, MK_SYNC_ALL);
3203                                 ha->marker_needed = 0;
3204
3205                                 /* Remap devices on Loop. */
3206                                 clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
3207
3208                                 qla2x00_configure_loop(ha);
3209                                 wait_time--;
3210                         } while (!atomic_read(&ha->loop_down_timer) &&
3211                                 !(test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) &&
3212                                 wait_time &&
3213                                 (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)));
3214                 }
3215         }
3216
3217         if (test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
3218                 return (QLA_FUNCTION_FAILED);
3219         }
3220
3221         if (rval) {
3222                 DEBUG2_3(printk("%s(): **** FAILED ****\n", __func__));
3223         }
3224
3225         return (rval);
3226 }
3227
3228 void
3229 qla2x00_update_fcports(scsi_qla_host_t *ha)
3230 {
3231         fc_port_t *fcport;
3232
3233         /* Go with deferred removal of rport references. */
3234         list_for_each_entry(fcport, &ha->fcports, list)
3235                 if (fcport->drport &&
3236                     atomic_read(&fcport->state) != FCS_UNCONFIGURED)
3237                         qla2x00_rport_del(fcport);
3238 }
3239
3240 /*
3241 *  qla2x00_abort_isp
3242 *      Resets ISP and aborts all outstanding commands.
3243 *
3244 * Input:
3245 *      ha           = adapter block pointer.
3246 *
3247 * Returns:
3248 *      0 = success
3249 */
3250 int
3251 qla2x00_abort_isp(scsi_qla_host_t *ha)
3252 {
3253         int rval;
3254         uint8_t        status = 0;
3255         scsi_qla_host_t *vha;
3256
3257         if (ha->flags.online) {
3258                 ha->flags.online = 0;
3259                 clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
3260                 ha->qla_stats.total_isp_aborts++;
3261
3262                 qla_printk(KERN_INFO, ha,
3263                     "Performing ISP error recovery - ha= %p.\n", ha);
3264                 ha->isp_ops->reset_chip(ha);
3265
3266                 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
3267                 if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
3268                         atomic_set(&ha->loop_state, LOOP_DOWN);
3269                         qla2x00_mark_all_devices_lost(ha, 0);
3270                         list_for_each_entry(vha, &ha->vp_list, vp_list)
3271                                qla2x00_mark_all_devices_lost(vha, 0);
3272                 } else {
3273                         if (!atomic_read(&ha->loop_down_timer))
3274                                 atomic_set(&ha->loop_down_timer,
3275                                     LOOP_DOWN_TIME);
3276                 }
3277
3278                 /* Requeue all commands in outstanding command list. */
3279                 qla2x00_abort_all_cmds(ha, DID_RESET << 16);
3280
3281                 ha->isp_ops->get_flash_version(ha, ha->request_ring);
3282
3283                 ha->isp_ops->nvram_config(ha);
3284
3285                 if (!qla2x00_restart_isp(ha)) {
3286                         clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
3287
3288                         if (!atomic_read(&ha->loop_down_timer)) {
3289                                 /*
3290                                  * Issue marker command only when we are going
3291                                  * to start the I/O .
3292                                  */
3293                                 ha->marker_needed = 1;
3294                         }
3295
3296                         ha->flags.online = 1;
3297
3298                         ha->isp_ops->enable_intrs(ha);
3299
3300                         ha->isp_abort_cnt = 0;
3301                         clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
3302
3303                         if (ha->fce) {
3304                                 ha->flags.fce_enabled = 1;
3305                                 memset(ha->fce, 0,
3306                                     fce_calc_size(ha->fce_bufs));
3307                                 rval = qla2x00_enable_fce_trace(ha,
3308                                     ha->fce_dma, ha->fce_bufs, ha->fce_mb,
3309                                     &ha->fce_bufs);
3310                                 if (rval) {
3311                                         qla_printk(KERN_WARNING, ha,
3312                                             "Unable to reinitialize FCE "
3313                                             "(%d).\n", rval);
3314                                         ha->flags.fce_enabled = 0;
3315                                 }
3316                         }
3317
3318                         if (ha->eft) {
3319                                 memset(ha->eft, 0, EFT_SIZE);
3320                                 rval = qla2x00_enable_eft_trace(ha,
3321                                     ha->eft_dma, EFT_NUM_BUFFERS);
3322                                 if (rval) {
3323                                         qla_printk(KERN_WARNING, ha,
3324                                             "Unable to reinitialize EFT "
3325                                             "(%d).\n", rval);
3326                                 }
3327                         }
3328                 } else {        /* failed the ISP abort */
3329                         ha->flags.online = 1;
3330                         if (test_bit(ISP_ABORT_RETRY, &ha->dpc_flags)) {
3331                                 if (ha->isp_abort_cnt == 0) {
3332                                         qla_printk(KERN_WARNING, ha,
3333                                             "ISP error recovery failed - "
3334                                             "board disabled\n");
3335                                         /*
3336                                          * The next call disables the board
3337                                          * completely.
3338                                          */
3339                                         ha->isp_ops->reset_adapter(ha);
3340                                         ha->flags.online = 0;
3341                                         clear_bit(ISP_ABORT_RETRY,
3342                                             &ha->dpc_flags);
3343                                         status = 0;
3344                                 } else { /* schedule another ISP abort */
3345                                         ha->isp_abort_cnt--;
3346                                         DEBUG(printk("qla%ld: ISP abort - "
3347                                             "retry remaining %d\n",
3348                                             ha->host_no, ha->isp_abort_cnt));
3349                                         status = 1;
3350                                 }
3351                         } else {
3352                                 ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT;
3353                                 DEBUG(printk("qla2x00(%ld): ISP error recovery "
3354                                     "- retrying (%d) more times\n",
3355                                     ha->host_no, ha->isp_abort_cnt));
3356                                 set_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
3357                                 status = 1;
3358                         }
3359                 }
3360
3361         }
3362
3363         if (status) {
3364                 qla_printk(KERN_INFO, ha,
3365                         "qla2x00_abort_isp: **** FAILED ****\n");
3366         } else {
3367                 DEBUG(printk(KERN_INFO
3368                                 "qla2x00_abort_isp(%ld): exiting.\n",
3369                                 ha->host_no));
3370         }
3371
3372         return(status);
3373 }
3374
3375 /*
3376 *  qla2x00_restart_isp
3377 *      restarts the ISP after a reset
3378 *
3379 * Input:
3380 *      ha = adapter block pointer.
3381 *
3382 * Returns:
3383 *      0 = success
3384 */
3385 static int
3386 qla2x00_restart_isp(scsi_qla_host_t *ha)
3387 {
3388         uint8_t         status = 0;
3389         uint32_t wait_time;
3390
3391         /* If firmware needs to be loaded */
3392         if (qla2x00_isp_firmware(ha)) {
3393                 ha->flags.online = 0;
3394                 if (!(status = ha->isp_ops->chip_diag(ha)))
3395                         status = qla2x00_setup_chip(ha);
3396         }
3397
3398         if (!status && !(status = qla2x00_init_rings(ha))) {
3399                 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
3400                 if (!(status = qla2x00_fw_ready(ha))) {
3401                         DEBUG(printk("%s(): Start configure loop, "
3402                             "status = %d\n", __func__, status));
3403
3404                         /* Issue a marker after FW becomes ready. */
3405                         qla2x00_marker(ha, 0, 0, MK_SYNC_ALL);
3406
3407                         ha->flags.online = 1;
3408                         /* Wait at most MAX_TARGET RSCNs for a stable link. */
3409                         wait_time = 256;
3410                         do {
3411                                 clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
3412                                 qla2x00_configure_loop(ha);
3413                                 wait_time--;
3414                         } while (!atomic_read(&ha->loop_down_timer) &&
3415                                 !(test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) &&
3416                                 wait_time &&
3417                                 (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)));
3418                 }
3419
3420                 /* if no cable then assume it's good */
3421                 if ((ha->device_flags & DFLG_NO_CABLE))
3422                         status = 0;
3423
3424                 DEBUG(printk("%s(): Configure loop done, status = 0x%x\n",
3425                                 __func__,
3426                                 status));
3427         }
3428         return (status);
3429 }
3430
3431 /*
3432 * qla2x00_reset_adapter
3433 *      Reset adapter.
3434 *
3435 * Input:
3436 *      ha = adapter block pointer.
3437 */
3438 void
3439 qla2x00_reset_adapter(scsi_qla_host_t *ha)
3440 {
3441         unsigned long flags = 0;
3442         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3443
3444         ha->flags.online = 0;
3445         ha->isp_ops->disable_intrs(ha);
3446
3447         spin_lock_irqsave(&ha->hardware_lock, flags);
3448         WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
3449         RD_REG_WORD(&reg->hccr);                        /* PCI Posting. */
3450         WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
3451         RD_REG_WORD(&reg->hccr);                        /* PCI Posting. */
3452         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3453 }
3454
3455 void
3456 qla24xx_reset_adapter(scsi_qla_host_t *ha)
3457 {
3458         unsigned long flags = 0;
3459         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
3460
3461         ha->flags.online = 0;
3462         ha->isp_ops->disable_intrs(ha);
3463
3464         spin_lock_irqsave(&ha->hardware_lock, flags);
3465         WRT_REG_DWORD(&reg->hccr, HCCRX_SET_RISC_RESET);
3466         RD_REG_DWORD(&reg->hccr);
3467         WRT_REG_DWORD(&reg->hccr, HCCRX_REL_RISC_PAUSE);
3468         RD_REG_DWORD(&reg->hccr);
3469         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3470 }
3471
3472 /* On sparc systems, obtain port and node WWN from firmware
3473  * properties.
3474  */
3475 static void qla24xx_nvram_wwn_from_ofw(scsi_qla_host_t *ha, struct nvram_24xx *nv)
3476 {
3477 #ifdef CONFIG_SPARC
3478         struct pci_dev *pdev = ha->pdev;
3479         struct device_node *dp = pci_device_to_OF_node(pdev);
3480         const u8 *val;
3481         int len;
3482
3483         val = of_get_property(dp, "port-wwn", &len);
3484         if (val && len >= WWN_SIZE)
3485                 memcpy(nv->port_name, val, WWN_SIZE);
3486
3487         val = of_get_property(dp, "node-wwn", &len);
3488         if (val && len >= WWN_SIZE)
3489                 memcpy(nv->node_name, val, WWN_SIZE);
3490 #endif
3491 }
3492
3493 int
3494 qla24xx_nvram_config(scsi_qla_host_t *ha)
3495 {
3496         int   rval;
3497         struct init_cb_24xx *icb;
3498         struct nvram_24xx *nv;
3499         uint32_t *dptr;
3500         uint8_t  *dptr1, *dptr2;
3501         uint32_t chksum;
3502         uint16_t cnt;
3503
3504         rval = QLA_SUCCESS;
3505         icb = (struct init_cb_24xx *)ha->init_cb;
3506         nv = ha->nvram;
3507
3508         /* Determine NVRAM starting address. */
3509         ha->nvram_size = sizeof(struct nvram_24xx);
3510         ha->nvram_base = FA_NVRAM_FUNC0_ADDR;
3511         ha->vpd_size = FA_NVRAM_VPD_SIZE;
3512         ha->vpd_base = FA_NVRAM_VPD0_ADDR;
3513         if (PCI_FUNC(ha->pdev->devfn)) {
3514                 ha->nvram_base = FA_NVRAM_FUNC1_ADDR;
3515                 ha->vpd_base = FA_NVRAM_VPD1_ADDR;
3516         }
3517
3518         /* Get VPD data into cache */
3519         ha->vpd = ha->nvram + VPD_OFFSET;
3520         ha->isp_ops->read_nvram(ha, (uint8_t *)ha->vpd,
3521             ha->nvram_base - FA_NVRAM_FUNC0_ADDR, FA_NVRAM_VPD_SIZE * 4);
3522
3523         /* Get NVRAM data into cache and calculate checksum. */
3524         dptr = (uint32_t *)nv;
3525         ha->isp_ops->read_nvram(ha, (uint8_t *)dptr, ha->nvram_base,
3526             ha->nvram_size);
3527         for (cnt = 0, chksum = 0; cnt < ha->nvram_size >> 2; cnt++)
3528                 chksum += le32_to_cpu(*dptr++);
3529
3530         DEBUG5(printk("scsi(%ld): Contents of NVRAM\n", ha->host_no));
3531         DEBUG5(qla2x00_dump_buffer((uint8_t *)nv, ha->nvram_size));
3532
3533         /* Bad NVRAM data, set defaults parameters. */
3534         if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' || nv->id[2] != 'P'
3535             || nv->id[3] != ' ' ||
3536             nv->nvram_version < __constant_cpu_to_le16(ICB_VERSION)) {
3537                 /* Reset NVRAM data. */
3538                 qla_printk(KERN_WARNING, ha, "Inconsistent NVRAM detected: "
3539                     "checksum=0x%x id=%c version=0x%x.\n", chksum, nv->id[0],
3540                     le16_to_cpu(nv->nvram_version));
3541                 qla_printk(KERN_WARNING, ha, "Falling back to functioning (yet "
3542                     "invalid -- WWPN) defaults.\n");
3543
3544                 /*
3545                  * Set default initialization control block.
3546                  */
3547                 memset(nv, 0, ha->nvram_size);
3548                 nv->nvram_version = __constant_cpu_to_le16(ICB_VERSION);
3549                 nv->version = __constant_cpu_to_le16(ICB_VERSION);
3550                 nv->frame_payload_size = __constant_cpu_to_le16(2048);
3551                 nv->execution_throttle = __constant_cpu_to_le16(0xFFFF);
3552                 nv->exchange_count = __constant_cpu_to_le16(0);
3553                 nv->hard_address = __constant_cpu_to_le16(124);
3554                 nv->port_name[0] = 0x21;
3555                 nv->port_name[1] = 0x00 + PCI_FUNC(ha->pdev->devfn);
3556                 nv->port_name[2] = 0x00;
3557                 nv->port_name[3] = 0xe0;
3558                 nv->port_name[4] = 0x8b;
3559                 nv->port_name[5] = 0x1c;
3560                 nv->port_name[6] = 0x55;
3561                 nv->port_name[7] = 0x86;
3562                 nv->node_name[0] = 0x20;
3563                 nv->node_name[1] = 0x00;
3564                 nv->node_name[2] = 0x00;
3565                 nv->node_name[3] = 0xe0;
3566                 nv->node_name[4] = 0x8b;
3567                 nv->node_name[5] = 0x1c;
3568                 nv->node_name[6] = 0x55;
3569                 nv->node_name[7] = 0x86;
3570                 qla24xx_nvram_wwn_from_ofw(ha, nv);
3571                 nv->login_retry_count = __constant_cpu_to_le16(8);
3572                 nv->interrupt_delay_timer = __constant_cpu_to_le16(0);
3573                 nv->login_timeout = __constant_cpu_to_le16(0);
3574                 nv->firmware_options_1 =
3575                     __constant_cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1);
3576                 nv->firmware_options_2 = __constant_cpu_to_le32(2 << 4);
3577                 nv->firmware_options_2 |= __constant_cpu_to_le32(BIT_12);
3578                 nv->firmware_options_3 = __constant_cpu_to_le32(2 << 13);
3579                 nv->host_p = __constant_cpu_to_le32(BIT_11|BIT_10);
3580                 nv->efi_parameters = __constant_cpu_to_le32(0);
3581                 nv->reset_delay = 5;
3582                 nv->max_luns_per_target = __constant_cpu_to_le16(128);
3583                 nv->port_down_retry_count = __constant_cpu_to_le16(30);
3584                 nv->link_down_timeout = __constant_cpu_to_le16(30);
3585
3586                 rval = 1;
3587         }
3588
3589         /* Reset Initialization control block */
3590         memset(icb, 0, sizeof(struct init_cb_24xx));
3591
3592         /* Copy 1st segment. */
3593         dptr1 = (uint8_t *)icb;
3594         dptr2 = (uint8_t *)&nv->version;
3595         cnt = (uint8_t *)&icb->response_q_inpointer - (uint8_t *)&icb->version;
3596         while (cnt--)
3597                 *dptr1++ = *dptr2++;
3598
3599         icb->login_retry_count = nv->login_retry_count;
3600         icb->link_down_on_nos = nv->link_down_on_nos;
3601
3602         /* Copy 2nd segment. */
3603         dptr1 = (uint8_t *)&icb->interrupt_delay_timer;
3604         dptr2 = (uint8_t *)&nv->interrupt_delay_timer;
3605         cnt = (uint8_t *)&icb->reserved_3 -
3606             (uint8_t *)&icb->interrupt_delay_timer;
3607         while (cnt--)
3608                 *dptr1++ = *dptr2++;
3609
3610         /*
3611          * Setup driver NVRAM options.
3612          */
3613         qla2x00_set_model_info(ha, nv->model_name, sizeof(nv->model_name),
3614             "QLA2462");
3615
3616         /* Use alternate WWN? */
3617         if (nv->host_p & __constant_cpu_to_le32(BIT_15)) {
3618                 memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
3619                 memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
3620         }
3621
3622         /* Prepare nodename */
3623         if ((icb->firmware_options_1 & __constant_cpu_to_le32(BIT_14)) == 0) {
3624                 /*
3625                  * Firmware will apply the following mask if the nodename was
3626                  * not provided.
3627                  */
3628                 memcpy(icb->node_name, icb->port_name, WWN_SIZE);
3629                 icb->node_name[0] &= 0xF0;
3630         }
3631
3632         /* Set host adapter parameters. */
3633         ha->flags.disable_risc_code_load = 0;
3634         ha->flags.enable_lip_reset = 0;
3635         ha->flags.enable_lip_full_login =
3636             le32_to_cpu(nv->host_p) & BIT_10 ? 1: 0;
3637         ha->flags.enable_target_reset =
3638             le32_to_cpu(nv->host_p) & BIT_11 ? 1: 0;
3639         ha->flags.enable_led_scheme = 0;
3640         ha->flags.disable_serdes = le32_to_cpu(nv->host_p) & BIT_5 ? 1: 0;
3641
3642         ha->operating_mode = (le32_to_cpu(icb->firmware_options_2) &
3643             (BIT_6 | BIT_5 | BIT_4)) >> 4;
3644
3645         memcpy(ha->fw_seriallink_options24, nv->seriallink_options,
3646             sizeof(ha->fw_seriallink_options24));
3647
3648         /* save HBA serial number */
3649         ha->serial0 = icb->port_name[5];
3650         ha->serial1 = icb->port_name[6];
3651         ha->serial2 = icb->port_name[7];
3652         ha->node_name = icb->node_name;
3653         ha->port_name = icb->port_name;
3654
3655         icb->execution_throttle = __constant_cpu_to_le16(0xFFFF);
3656
3657         ha->retry_count = le16_to_cpu(nv->login_retry_count);
3658
3659         /* Set minimum login_timeout to 4 seconds. */
3660         if (le16_to_cpu(nv->login_timeout) < ql2xlogintimeout)
3661                 nv->login_timeout = cpu_to_le16(ql2xlogintimeout);
3662         if (le16_to_cpu(nv->login_timeout) < 4)
3663                 nv->login_timeout = __constant_cpu_to_le16(4);
3664         ha->login_timeout = le16_to_cpu(nv->login_timeout);
3665         icb->login_timeout = nv->login_timeout;
3666
3667         /* Set minimum RATOV to 100 tenths of a second. */
3668         ha->r_a_tov = 100;
3669
3670         ha->loop_reset_delay = nv->reset_delay;
3671
3672         /* Link Down Timeout = 0:
3673          *
3674          *      When Port Down timer expires we will start returning
3675          *      I/O's to OS with "DID_NO_CONNECT".
3676          *
3677          * Link Down Timeout != 0:
3678          *
3679          *       The driver waits for the link to come up after link down
3680          *       before returning I/Os to OS with "DID_NO_CONNECT".
3681          */
3682         if (le16_to_cpu(nv->link_down_timeout) == 0) {
3683                 ha->loop_down_abort_time =
3684                     (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
3685         } else {
3686                 ha->link_down_timeout = le16_to_cpu(nv->link_down_timeout);
3687                 ha->loop_down_abort_time =
3688                     (LOOP_DOWN_TIME - ha->link_down_timeout);
3689         }
3690
3691         /* Need enough time to try and get the port back. */
3692         ha->port_down_retry_count = le16_to_cpu(nv->port_down_retry_count);
3693         if (qlport_down_retry)
3694                 ha->port_down_retry_count = qlport_down_retry;
3695
3696         /* Set login_retry_count */
3697         ha->login_retry_count  = le16_to_cpu(nv->login_retry_count);
3698         if (ha->port_down_retry_count ==
3699             le16_to_cpu(nv->port_down_retry_count) &&
3700             ha->port_down_retry_count > 3)
3701                 ha->login_retry_count = ha->port_down_retry_count;
3702         else if (ha->port_down_retry_count > (int)ha->login_retry_count)
3703                 ha->login_retry_count = ha->port_down_retry_count;
3704         if (ql2xloginretrycount)
3705                 ha->login_retry_count = ql2xloginretrycount;
3706
3707         /* Enable ZIO. */
3708         if (!ha->flags.init_done) {
3709                 ha->zio_mode = le32_to_cpu(icb->firmware_options_2) &
3710                     (BIT_3 | BIT_2 | BIT_1 | BIT_0);
3711                 ha->zio_timer = le16_to_cpu(icb->interrupt_delay_timer) ?
3712                     le16_to_cpu(icb->interrupt_delay_timer): 2;
3713         }
3714         icb->firmware_options_2 &= __constant_cpu_to_le32(
3715             ~(BIT_3 | BIT_2 | BIT_1 | BIT_0));
3716         ha->flags.process_response_queue = 0;
3717         if (ha->zio_mode != QLA_ZIO_DISABLED) {
3718                 ha->zio_mode = QLA_ZIO_MODE_6;
3719
3720                 DEBUG2(printk("scsi(%ld): ZIO mode %d enabled; timer delay "
3721                     "(%d us).\n", ha->host_no, ha->zio_mode,
3722                     ha->zio_timer * 100));
3723                 qla_printk(KERN_INFO, ha,
3724                     "ZIO mode %d enabled; timer delay (%d us).\n",
3725                     ha->zio_mode, ha->zio_timer * 100);
3726
3727                 icb->firmware_options_2 |= cpu_to_le32(
3728                     (uint32_t)ha->zio_mode);
3729                 icb->interrupt_delay_timer = cpu_to_le16(ha->zio_timer);
3730                 ha->flags.process_response_queue = 1;
3731         }
3732
3733         if (rval) {
3734                 DEBUG2_3(printk(KERN_WARNING
3735                     "scsi(%ld): NVRAM configuration failed!\n", ha->host_no));
3736         }
3737         return (rval);
3738 }
3739
3740 static int
3741 qla24xx_load_risc_flash(scsi_qla_host_t *ha, uint32_t *srisc_addr)
3742 {
3743         int     rval;
3744         int     segments, fragment;
3745         uint32_t faddr;
3746         uint32_t *dcode, dlen;
3747         uint32_t risc_addr;
3748         uint32_t risc_size;
3749         uint32_t i;
3750
3751         rval = QLA_SUCCESS;
3752
3753         segments = FA_RISC_CODE_SEGMENTS;
3754         faddr = FA_RISC_CODE_ADDR;
3755         dcode = (uint32_t *)ha->request_ring;
3756         *srisc_addr = 0;
3757
3758         /* Validate firmware image by checking version. */
3759         qla24xx_read_flash_data(ha, dcode, faddr + 4, 4);
3760         for (i = 0; i < 4; i++)
3761                 dcode[i] = be32_to_cpu(dcode[i]);
3762         if ((dcode[0] == 0xffffffff && dcode[1] == 0xffffffff &&
3763             dcode[2] == 0xffffffff && dcode[3] == 0xffffffff) ||
3764             (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
3765                 dcode[3] == 0)) {
3766                 qla_printk(KERN_WARNING, ha,
3767                     "Unable to verify integrity of flash firmware image!\n");
3768                 qla_printk(KERN_WARNING, ha,
3769                     "Firmware data: %08x %08x %08x %08x!\n", dcode[0],
3770                     dcode[1], dcode[2], dcode[3]);
3771
3772                 return QLA_FUNCTION_FAILED;
3773         }
3774
3775         while (segments && rval == QLA_SUCCESS) {
3776                 /* Read segment's load information. */
3777                 qla24xx_read_flash_data(ha, dcode, faddr, 4);
3778
3779                 risc_addr = be32_to_cpu(dcode[2]);
3780                 *srisc_addr = *srisc_addr == 0 ? risc_addr : *srisc_addr;
3781                 risc_size = be32_to_cpu(dcode[3]);
3782
3783                 fragment = 0;
3784                 while (risc_size > 0 && rval == QLA_SUCCESS) {
3785                         dlen = (uint32_t)(ha->fw_transfer_size >> 2);
3786                         if (dlen > risc_size)
3787                                 dlen = risc_size;
3788
3789                         DEBUG7(printk("scsi(%ld): Loading risc segment@ risc "
3790                             "addr %x, number of dwords 0x%x, offset 0x%x.\n",
3791                             ha->host_no, risc_addr, dlen, faddr));
3792
3793                         qla24xx_read_flash_data(ha, dcode, faddr, dlen);
3794                         for (i = 0; i < dlen; i++)
3795                                 dcode[i] = swab32(dcode[i]);
3796
3797                         rval = qla2x00_load_ram(ha, ha->request_dma, risc_addr,
3798                             dlen);
3799                         if (rval) {
3800                                 DEBUG(printk("scsi(%ld):[ERROR] Failed to load "
3801                                     "segment %d of firmware\n", ha->host_no,
3802                                     fragment));
3803                                 qla_printk(KERN_WARNING, ha,
3804                                     "[ERROR] Failed to load segment %d of "
3805                                     "firmware\n", fragment);
3806                                 break;
3807                         }
3808
3809                         faddr += dlen;
3810                         risc_addr += dlen;
3811                         risc_size -= dlen;
3812                         fragment++;
3813                 }
3814
3815                 /* Next segment. */
3816                 segments--;
3817         }
3818
3819         return rval;
3820 }
3821
3822 #define QLA_FW_URL "ftp://ftp.qlogic.com/outgoing/linux/firmware/"
3823
3824 int
3825 qla2x00_load_risc(scsi_qla_host_t *ha, uint32_t *srisc_addr)
3826 {
3827         int     rval;
3828         int     i, fragment;
3829         uint16_t *wcode, *fwcode;
3830         uint32_t risc_addr, risc_size, fwclen, wlen, *seg;
3831         struct fw_blob *blob;
3832
3833         /* Load firmware blob. */
3834         blob = qla2x00_request_firmware(ha);
3835         if (!blob) {
3836                 qla_printk(KERN_ERR, ha, "Firmware image unavailable.\n");
3837                 qla_printk(KERN_ERR, ha, "Firmware images can be retrieved "
3838                     "from: " QLA_FW_URL ".\n");
3839                 return QLA_FUNCTION_FAILED;
3840         }
3841
3842         rval = QLA_SUCCESS;
3843
3844         wcode = (uint16_t *)ha->request_ring;
3845         *srisc_addr = 0;
3846         fwcode = (uint16_t *)blob->fw->data;
3847         fwclen = 0;
3848
3849         /* Validate firmware image by checking version. */
3850         if (blob->fw->size < 8 * sizeof(uint16_t)) {
3851                 qla_printk(KERN_WARNING, ha,
3852                     "Unable to verify integrity of firmware image (%Zd)!\n",
3853                     blob->fw->size);
3854                 goto fail_fw_integrity;
3855         }
3856         for (i = 0; i < 4; i++)
3857                 wcode[i] = be16_to_cpu(fwcode[i + 4]);
3858         if ((wcode[0] == 0xffff && wcode[1] == 0xffff && wcode[2] == 0xffff &&
3859             wcode[3] == 0xffff) || (wcode[0] == 0 && wcode[1] == 0 &&
3860                 wcode[2] == 0 && wcode[3] == 0)) {
3861                 qla_printk(KERN_WARNING, ha,
3862                     "Unable to verify integrity of firmware image!\n");
3863                 qla_printk(KERN_WARNING, ha,
3864                     "Firmware data: %04x %04x %04x %04x!\n", wcode[0],
3865                     wcode[1], wcode[2], wcode[3]);
3866                 goto fail_fw_integrity;
3867         }
3868
3869         seg = blob->segs;
3870         while (*seg && rval == QLA_SUCCESS) {
3871                 risc_addr = *seg;
3872                 *srisc_addr = *srisc_addr == 0 ? *seg : *srisc_addr;
3873                 risc_size = be16_to_cpu(fwcode[3]);
3874
3875                 /* Validate firmware image size. */
3876                 fwclen += risc_size * sizeof(uint16_t);
3877                 if (blob->fw->size < fwclen) {
3878                         qla_printk(KERN_WARNING, ha,
3879                             "Unable to verify integrity of firmware image "
3880                             "(%Zd)!\n", blob->fw->size);
3881                         goto fail_fw_integrity;
3882                 }
3883
3884                 fragment = 0;
3885                 while (risc_size > 0 && rval == QLA_SUCCESS) {
3886                         wlen = (uint16_t)(ha->fw_transfer_size >> 1);
3887                         if (wlen > risc_size)
3888                                 wlen = risc_size;
3889
3890                         DEBUG7(printk("scsi(%ld): Loading risc segment@ risc "
3891                             "addr %x, number of words 0x%x.\n", ha->host_no,
3892                             risc_addr, wlen));
3893
3894                         for (i = 0; i < wlen; i++)
3895                                 wcode[i] = swab16(fwcode[i]);
3896
3897                         rval = qla2x00_load_ram(ha, ha->request_dma, risc_addr,
3898                             wlen);
3899                         if (rval) {
3900                                 DEBUG(printk("scsi(%ld):[ERROR] Failed to load "
3901                                     "segment %d of firmware\n", ha->host_no,
3902                                     fragment));
3903                                 qla_printk(KERN_WARNING, ha,
3904                                     "[ERROR] Failed to load segment %d of "
3905                                     "firmware\n", fragment);
3906                                 break;
3907                         }
3908
3909                         fwcode += wlen;
3910                         risc_addr += wlen;
3911                         risc_size -= wlen;
3912                         fragment++;
3913                 }
3914
3915                 /* Next segment. */
3916                 seg++;
3917         }
3918         return rval;
3919
3920 fail_fw_integrity:
3921         return QLA_FUNCTION_FAILED;
3922 }
3923
3924 int
3925 qla24xx_load_risc(scsi_qla_host_t *ha, uint32_t *srisc_addr)
3926 {
3927         int     rval;
3928         int     segments, fragment;
3929         uint32_t *dcode, dlen;
3930         uint32_t risc_addr;
3931         uint32_t risc_size;
3932         uint32_t i;
3933         struct fw_blob *blob;
3934         uint32_t *fwcode, fwclen;
3935
3936         /* Load firmware blob. */
3937         blob = qla2x00_request_firmware(ha);
3938         if (!blob) {
3939                 qla_printk(KERN_ERR, ha, "Firmware image unavailable.\n");
3940                 qla_printk(KERN_ERR, ha, "Firmware images can be retrieved "
3941                     "from: " QLA_FW_URL ".\n");
3942
3943                 /* Try to load RISC code from flash. */
3944                 qla_printk(KERN_ERR, ha, "Attempting to load (potentially "
3945                     "outdated) firmware from flash.\n");
3946                 return qla24xx_load_risc_flash(ha, srisc_addr);
3947         }
3948
3949         rval = QLA_SUCCESS;
3950
3951         segments = FA_RISC_CODE_SEGMENTS;
3952         dcode = (uint32_t *)ha->request_ring;
3953         *srisc_addr = 0;
3954         fwcode = (uint32_t *)blob->fw->data;
3955         fwclen = 0;
3956
3957         /* Validate firmware image by checking version. */
3958         if (blob->fw->size < 8 * sizeof(uint32_t)) {
3959                 qla_printk(KERN_WARNING, ha,
3960                     "Unable to verify integrity of firmware image (%Zd)!\n",
3961                     blob->fw->size);
3962                 goto fail_fw_integrity;
3963         }
3964         for (i = 0; i < 4; i++)
3965                 dcode[i] = be32_to_cpu(fwcode[i + 4]);
3966         if ((dcode[0] == 0xffffffff && dcode[1] == 0xffffffff &&
3967             dcode[2] == 0xffffffff && dcode[3] == 0xffffffff) ||
3968             (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
3969                 dcode[3] == 0)) {
3970                 qla_printk(KERN_WARNING, ha,
3971                     "Unable to verify integrity of firmware image!\n");
3972                 qla_printk(KERN_WARNING, ha,
3973                     "Firmware data: %08x %08x %08x %08x!\n", dcode[0],
3974                     dcode[1], dcode[2], dcode[3]);
3975                 goto fail_fw_integrity;
3976         }
3977
3978         while (segments && rval == QLA_SUCCESS) {
3979                 risc_addr = be32_to_cpu(fwcode[2]);
3980                 *srisc_addr = *srisc_addr == 0 ? risc_addr : *srisc_addr;
3981                 risc_size = be32_to_cpu(fwcode[3]);
3982
3983                 /* Validate firmware image size. */
3984                 fwclen += risc_size * sizeof(uint32_t);
3985                 if (blob->fw->size < fwclen) {
3986                         qla_printk(KERN_WARNING, ha,
3987                             "Unable to verify integrity of firmware image "
3988                             "(%Zd)!\n", blob->fw->size);
3989
3990                         goto fail_fw_integrity;
3991                 }
3992
3993                 fragment = 0;
3994                 while (risc_size > 0 && rval == QLA_SUCCESS) {
3995                         dlen = (uint32_t)(ha->fw_transfer_size >> 2);
3996                         if (dlen > risc_size)
3997                                 dlen = risc_size;
3998
3999                         DEBUG7(printk("scsi(%ld): Loading risc segment@ risc "
4000                             "addr %x, number of dwords 0x%x.\n", ha->host_no,
4001                             risc_addr, dlen));
4002
4003                         for (i = 0; i < dlen; i++)
4004                                 dcode[i] = swab32(fwcode[i]);
4005
4006                         rval = qla2x00_load_ram(ha, ha->request_dma, risc_addr,
4007                             dlen);
4008                         if (rval) {
4009                                 DEBUG(printk("scsi(%ld):[ERROR] Failed to load "
4010                                     "segment %d of firmware\n", ha->host_no,
4011                                     fragment));
4012                                 qla_printk(KERN_WARNING, ha,
4013                                     "[ERROR] Failed to load segment %d of "
4014                                     "firmware\n", fragment);
4015                                 break;
4016                         }
4017
4018                         fwcode += dlen;
4019                         risc_addr += dlen;
4020                         risc_size -= dlen;
4021                         fragment++;
4022                 }
4023
4024                 /* Next segment. */
4025                 segments--;
4026         }
4027         return rval;
4028
4029 fail_fw_integrity:
4030         return QLA_FUNCTION_FAILED;
4031 }
4032
4033 void
4034 qla2x00_try_to_stop_firmware(scsi_qla_host_t *ha)
4035 {
4036         int ret, retries;
4037
4038         if (!IS_FWI2_CAPABLE(ha))
4039                 return;
4040         if (!ha->fw_major_version)
4041                 return;
4042
4043         ret = qla2x00_stop_firmware(ha);
4044         for (retries = 5; ret != QLA_SUCCESS && ret != QLA_FUNCTION_TIMEOUT &&
4045             retries ; retries--) {
4046                 ha->isp_ops->reset_chip(ha);
4047                 if (ha->isp_ops->chip_diag(ha) != QLA_SUCCESS)
4048                         continue;
4049                 if (qla2x00_setup_chip(ha) != QLA_SUCCESS)
4050                         continue;
4051                 qla_printk(KERN_INFO, ha,
4052                     "Attempting retry of stop-firmware command...\n");
4053                 ret = qla2x00_stop_firmware(ha);
4054         }
4055 }
4056
4057 int
4058 qla24xx_configure_vhba(scsi_qla_host_t *ha)
4059 {
4060         int rval = QLA_SUCCESS;
4061         uint16_t mb[MAILBOX_REGISTER_COUNT];
4062
4063         if (!ha->parent)
4064                 return -EINVAL;
4065
4066         rval = qla2x00_fw_ready(ha->parent);
4067         if (rval == QLA_SUCCESS) {
4068                 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
4069                 qla2x00_marker(ha, 0, 0, MK_SYNC_ALL);
4070         }
4071
4072         ha->flags.management_server_logged_in = 0;
4073
4074         /* Login to SNS first */
4075         qla24xx_login_fabric(ha->parent, NPH_SNS, 0xff, 0xff, 0xfc,
4076             mb, BIT_1);
4077         if (mb[0] != MBS_COMMAND_COMPLETE) {
4078                 DEBUG15(qla_printk(KERN_INFO, ha,
4079                     "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x "
4080                     "mb[2]=%x mb[6]=%x mb[7]=%x\n", NPH_SNS,
4081                     mb[0], mb[1], mb[2], mb[6], mb[7]));
4082                 return (QLA_FUNCTION_FAILED);
4083         }
4084
4085         atomic_set(&ha->loop_down_timer, 0);
4086         atomic_set(&ha->loop_state, LOOP_UP);
4087         set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
4088         set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
4089         rval = qla2x00_loop_resync(ha->parent);
4090
4091         return rval;
4092 }
4093
4094 /* 84XX Support **************************************************************/
4095
4096 static LIST_HEAD(qla_cs84xx_list);
4097 static DEFINE_MUTEX(qla_cs84xx_mutex);
4098
4099 static struct qla_chip_state_84xx *
4100 qla84xx_get_chip(struct scsi_qla_host *ha)
4101 {
4102         struct qla_chip_state_84xx *cs84xx;
4103
4104         mutex_lock(&qla_cs84xx_mutex);
4105
4106         /* Find any shared 84xx chip. */
4107         list_for_each_entry(cs84xx, &qla_cs84xx_list, list) {
4108                 if (cs84xx->bus == ha->pdev->bus) {
4109                         kref_get(&cs84xx->kref);
4110                         goto done;
4111                 }
4112         }
4113
4114         cs84xx = kzalloc(sizeof(*cs84xx), GFP_KERNEL);
4115         if (!cs84xx)
4116                 goto done;
4117
4118         kref_init(&cs84xx->kref);
4119         spin_lock_init(&cs84xx->access_lock);
4120         mutex_init(&cs84xx->fw_update_mutex);
4121         cs84xx->bus = ha->pdev->bus;
4122
4123         list_add_tail(&cs84xx->list, &qla_cs84xx_list);
4124 done:
4125         mutex_unlock(&qla_cs84xx_mutex);
4126         return cs84xx;
4127 }
4128
4129 static void
4130 __qla84xx_chip_release(struct kref *kref)
4131 {
4132         struct qla_chip_state_84xx *cs84xx =
4133             container_of(kref, struct qla_chip_state_84xx, kref);
4134
4135         mutex_lock(&qla_cs84xx_mutex);
4136         list_del(&cs84xx->list);
4137         mutex_unlock(&qla_cs84xx_mutex);
4138         kfree(cs84xx);
4139 }
4140
4141 void
4142 qla84xx_put_chip(struct scsi_qla_host *ha)
4143 {
4144         if (ha->cs84xx)
4145                 kref_put(&ha->cs84xx->kref, __qla84xx_chip_release);
4146 }
4147
4148 static int
4149 qla84xx_init_chip(scsi_qla_host_t *ha)
4150 {
4151         int rval;
4152         uint16_t status[2];
4153
4154         mutex_lock(&ha->cs84xx->fw_update_mutex);
4155
4156         rval = qla84xx_verify_chip(ha, status);
4157
4158         mutex_unlock(&ha->cs84xx->fw_update_mutex);
4159
4160         return rval != QLA_SUCCESS || status[0] ? QLA_FUNCTION_FAILED:
4161             QLA_SUCCESS;
4162 }