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