err.no 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                         set_bit(RSCN_UPDATE, &ha->dpc_flags);
2017         }
2018
2019         return (rval);
2020 }
2021
2022
2023
2024 /*
2025  * qla2x00_configure_local_loop
2026  *      Updates Fibre Channel Device Database with local loop devices.
2027  *
2028  * Input:
2029  *      ha = adapter block pointer.
2030  *
2031  * Returns:
2032  *      0 = success.
2033  */
2034 static int
2035 qla2x00_configure_local_loop(scsi_qla_host_t *ha)
2036 {
2037         int             rval, rval2;
2038         int             found_devs;
2039         int             found;
2040         fc_port_t       *fcport, *new_fcport;
2041
2042         uint16_t        index;
2043         uint16_t        entries;
2044         char            *id_iter;
2045         uint16_t        loop_id;
2046         uint8_t         domain, area, al_pa;
2047         scsi_qla_host_t *pha = to_qla_parent(ha);
2048
2049         found_devs = 0;
2050         new_fcport = NULL;
2051         entries = MAX_FIBRE_DEVICES;
2052
2053         DEBUG3(printk("scsi(%ld): Getting FCAL position map\n", ha->host_no));
2054         DEBUG3(qla2x00_get_fcal_position_map(ha, NULL));
2055
2056         /* Get list of logged in devices. */
2057         memset(ha->gid_list, 0, GID_LIST_SIZE);
2058         rval = qla2x00_get_id_list(ha, ha->gid_list, ha->gid_list_dma,
2059             &entries);
2060         if (rval != QLA_SUCCESS)
2061                 goto cleanup_allocation;
2062
2063         DEBUG3(printk("scsi(%ld): Entries in ID list (%d)\n",
2064             ha->host_no, entries));
2065         DEBUG3(qla2x00_dump_buffer((uint8_t *)ha->gid_list,
2066             entries * sizeof(struct gid_list_info)));
2067
2068         /* Allocate temporary fcport for any new fcports discovered. */
2069         new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
2070         if (new_fcport == NULL) {
2071                 rval = QLA_MEMORY_ALLOC_FAILED;
2072                 goto cleanup_allocation;
2073         }
2074         new_fcport->flags &= ~FCF_FABRIC_DEVICE;
2075
2076         /*
2077          * Mark local devices that were present with FCF_DEVICE_LOST for now.
2078          */
2079         list_for_each_entry(fcport, &pha->fcports, list) {
2080                 if (fcport->vp_idx != ha->vp_idx)
2081                         continue;
2082
2083                 if (atomic_read(&fcport->state) == FCS_ONLINE &&
2084                     fcport->port_type != FCT_BROADCAST &&
2085                     (fcport->flags & FCF_FABRIC_DEVICE) == 0) {
2086
2087                         DEBUG(printk("scsi(%ld): Marking port lost, "
2088                             "loop_id=0x%04x\n",
2089                             ha->host_no, fcport->loop_id));
2090
2091                         atomic_set(&fcport->state, FCS_DEVICE_LOST);
2092                         fcport->flags &= ~FCF_FARP_DONE;
2093                 }
2094         }
2095
2096         /* Add devices to port list. */
2097         id_iter = (char *)ha->gid_list;
2098         for (index = 0; index < entries; index++) {
2099                 domain = ((struct gid_list_info *)id_iter)->domain;
2100                 area = ((struct gid_list_info *)id_iter)->area;
2101                 al_pa = ((struct gid_list_info *)id_iter)->al_pa;
2102                 if (IS_QLA2100(ha) || IS_QLA2200(ha))
2103                         loop_id = (uint16_t)
2104                             ((struct gid_list_info *)id_iter)->loop_id_2100;
2105                 else
2106                         loop_id = le16_to_cpu(
2107                             ((struct gid_list_info *)id_iter)->loop_id);
2108                 id_iter += ha->gid_list_info_size;
2109
2110                 /* Bypass reserved domain fields. */
2111                 if ((domain & 0xf0) == 0xf0)
2112                         continue;
2113
2114                 /* Bypass if not same domain and area of adapter. */
2115                 if (area && domain &&
2116                     (area != ha->d_id.b.area || domain != ha->d_id.b.domain))
2117                         continue;
2118
2119                 /* Bypass invalid local loop ID. */
2120                 if (loop_id > LAST_LOCAL_LOOP_ID)
2121                         continue;
2122
2123                 /* Fill in member data. */
2124                 new_fcport->d_id.b.domain = domain;
2125                 new_fcport->d_id.b.area = area;
2126                 new_fcport->d_id.b.al_pa = al_pa;
2127                 new_fcport->loop_id = loop_id;
2128                 new_fcport->vp_idx = ha->vp_idx;
2129                 rval2 = qla2x00_get_port_database(ha, new_fcport, 0);
2130                 if (rval2 != QLA_SUCCESS) {
2131                         DEBUG2(printk("scsi(%ld): Failed to retrieve fcport "
2132                             "information -- get_port_database=%x, "
2133                             "loop_id=0x%04x\n",
2134                             ha->host_no, rval2, new_fcport->loop_id));
2135                         DEBUG2(printk("scsi(%ld): Scheduling resync...\n",
2136                             ha->host_no));
2137                         set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2138                         continue;
2139                 }
2140
2141                 /* Check for matching device in port list. */
2142                 found = 0;
2143                 fcport = NULL;
2144                 list_for_each_entry(fcport, &pha->fcports, list) {
2145                         if (fcport->vp_idx != ha->vp_idx)
2146                                 continue;
2147
2148                         if (memcmp(new_fcport->port_name, fcport->port_name,
2149                             WWN_SIZE))
2150                                 continue;
2151
2152                         fcport->flags &= ~(FCF_FABRIC_DEVICE |
2153                             FCF_PERSISTENT_BOUND);
2154                         fcport->loop_id = new_fcport->loop_id;
2155                         fcport->port_type = new_fcport->port_type;
2156                         fcport->d_id.b24 = new_fcport->d_id.b24;
2157                         memcpy(fcport->node_name, new_fcport->node_name,
2158                             WWN_SIZE);
2159
2160                         found++;
2161                         break;
2162                 }
2163
2164                 if (!found) {
2165                         /* New device, add to fcports list. */
2166                         new_fcport->flags &= ~FCF_PERSISTENT_BOUND;
2167                         if (ha->parent) {
2168                                 new_fcport->ha = ha;
2169                                 new_fcport->vp_idx = ha->vp_idx;
2170                                 list_add_tail(&new_fcport->vp_fcport,
2171                                     &ha->vp_fcports);
2172                         }
2173                         list_add_tail(&new_fcport->list, &pha->fcports);
2174
2175                         /* Allocate a new replacement fcport. */
2176                         fcport = new_fcport;
2177                         new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
2178                         if (new_fcport == NULL) {
2179                                 rval = QLA_MEMORY_ALLOC_FAILED;
2180                                 goto cleanup_allocation;
2181                         }
2182                         new_fcport->flags &= ~FCF_FABRIC_DEVICE;
2183                 }
2184
2185                 /* Base iIDMA settings on HBA port speed. */
2186                 fcport->fp_speed = ha->link_data_rate;
2187
2188                 qla2x00_update_fcport(ha, fcport);
2189
2190                 found_devs++;
2191         }
2192
2193 cleanup_allocation:
2194         kfree(new_fcport);
2195
2196         if (rval != QLA_SUCCESS) {
2197                 DEBUG2(printk("scsi(%ld): Configure local loop error exit: "
2198                     "rval=%x\n", ha->host_no, rval));
2199         }
2200
2201         if (found_devs) {
2202                 ha->device_flags |= DFLG_LOCAL_DEVICES;
2203                 ha->device_flags &= ~DFLG_RETRY_LOCAL_DEVICES;
2204         }
2205
2206         return (rval);
2207 }
2208
2209 static void
2210 qla2x00_iidma_fcport(scsi_qla_host_t *ha, fc_port_t *fcport)
2211 {
2212 #define LS_UNKNOWN      2
2213         static char *link_speeds[5] = { "1", "2", "?", "4", "8" };
2214         int rval;
2215         uint16_t mb[6];
2216
2217         if (!IS_IIDMA_CAPABLE(ha))
2218                 return;
2219
2220         if (fcport->fp_speed == PORT_SPEED_UNKNOWN ||
2221             fcport->fp_speed > ha->link_data_rate)
2222                 return;
2223
2224         rval = qla2x00_set_idma_speed(ha, fcport->loop_id, fcport->fp_speed,
2225             mb);
2226         if (rval != QLA_SUCCESS) {
2227                 DEBUG2(printk("scsi(%ld): Unable to adjust iIDMA "
2228                     "%02x%02x%02x%02x%02x%02x%02x%02x -- %04x %x %04x %04x.\n",
2229                     ha->host_no, fcport->port_name[0], fcport->port_name[1],
2230                     fcport->port_name[2], fcport->port_name[3],
2231                     fcport->port_name[4], fcport->port_name[5],
2232                     fcport->port_name[6], fcport->port_name[7], rval,
2233                     fcport->fp_speed, mb[0], mb[1]));
2234         } else {
2235                 DEBUG2(qla_printk(KERN_INFO, ha,
2236                     "iIDMA adjusted to %s GB/s on "
2237                     "%02x%02x%02x%02x%02x%02x%02x%02x.\n",
2238                     link_speeds[fcport->fp_speed], fcport->port_name[0],
2239                     fcport->port_name[1], fcport->port_name[2],
2240                     fcport->port_name[3], fcport->port_name[4],
2241                     fcport->port_name[5], fcport->port_name[6],
2242                     fcport->port_name[7]));
2243         }
2244 }
2245
2246 static void
2247 qla2x00_reg_remote_port(scsi_qla_host_t *ha, fc_port_t *fcport)
2248 {
2249         struct fc_rport_identifiers rport_ids;
2250         struct fc_rport *rport;
2251
2252         if (fcport->drport)
2253                 qla2x00_rport_del(fcport);
2254
2255         rport_ids.node_name = wwn_to_u64(fcport->node_name);
2256         rport_ids.port_name = wwn_to_u64(fcport->port_name);
2257         rport_ids.port_id = fcport->d_id.b.domain << 16 |
2258             fcport->d_id.b.area << 8 | fcport->d_id.b.al_pa;
2259         rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
2260         fcport->rport = rport = fc_remote_port_add(ha->host, 0, &rport_ids);
2261         if (!rport) {
2262                 qla_printk(KERN_WARNING, ha,
2263                     "Unable to allocate fc remote port!\n");
2264                 return;
2265         }
2266         spin_lock_irq(fcport->ha->host->host_lock);
2267         *((fc_port_t **)rport->dd_data) = fcport;
2268         spin_unlock_irq(fcport->ha->host->host_lock);
2269
2270         rport->supported_classes = fcport->supported_classes;
2271
2272         rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
2273         if (fcport->port_type == FCT_INITIATOR)
2274                 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
2275         if (fcport->port_type == FCT_TARGET)
2276                 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
2277         fc_remote_port_rolechg(rport, rport_ids.roles);
2278 }
2279
2280 /*
2281  * qla2x00_update_fcport
2282  *      Updates device on list.
2283  *
2284  * Input:
2285  *      ha = adapter block pointer.
2286  *      fcport = port structure pointer.
2287  *
2288  * Return:
2289  *      0  - Success
2290  *  BIT_0 - error
2291  *
2292  * Context:
2293  *      Kernel context.
2294  */
2295 void
2296 qla2x00_update_fcport(scsi_qla_host_t *ha, fc_port_t *fcport)
2297 {
2298         scsi_qla_host_t *pha = to_qla_parent(ha);
2299
2300         fcport->ha = ha;
2301         fcport->login_retry = 0;
2302         fcport->port_login_retry_count = pha->port_down_retry_count *
2303             PORT_RETRY_TIME;
2304         atomic_set(&fcport->port_down_timer, pha->port_down_retry_count *
2305             PORT_RETRY_TIME);
2306         fcport->flags &= ~FCF_LOGIN_NEEDED;
2307
2308         qla2x00_iidma_fcport(ha, fcport);
2309
2310         atomic_set(&fcport->state, FCS_ONLINE);
2311
2312         qla2x00_reg_remote_port(ha, fcport);
2313 }
2314
2315 /*
2316  * qla2x00_configure_fabric
2317  *      Setup SNS devices with loop ID's.
2318  *
2319  * Input:
2320  *      ha = adapter block pointer.
2321  *
2322  * Returns:
2323  *      0 = success.
2324  *      BIT_0 = error
2325  */
2326 static int
2327 qla2x00_configure_fabric(scsi_qla_host_t *ha)
2328 {
2329         int     rval, rval2;
2330         fc_port_t       *fcport, *fcptemp;
2331         uint16_t        next_loopid;
2332         uint16_t        mb[MAILBOX_REGISTER_COUNT];
2333         uint16_t        loop_id;
2334         LIST_HEAD(new_fcports);
2335         scsi_qla_host_t *pha = to_qla_parent(ha);
2336
2337         /* If FL port exists, then SNS is present */
2338         if (IS_FWI2_CAPABLE(ha))
2339                 loop_id = NPH_F_PORT;
2340         else
2341                 loop_id = SNS_FL_PORT;
2342         rval = qla2x00_get_port_name(ha, loop_id, ha->fabric_node_name, 1);
2343         if (rval != QLA_SUCCESS) {
2344                 DEBUG2(printk("scsi(%ld): MBC_GET_PORT_NAME Failed, No FL "
2345                     "Port\n", ha->host_no));
2346
2347                 ha->device_flags &= ~SWITCH_FOUND;
2348                 return (QLA_SUCCESS);
2349         }
2350         ha->device_flags |= SWITCH_FOUND;
2351
2352         /* Mark devices that need re-synchronization. */
2353         rval2 = qla2x00_device_resync(ha);
2354         if (rval2 == QLA_RSCNS_HANDLED) {
2355                 /* No point doing the scan, just continue. */
2356                 return (QLA_SUCCESS);
2357         }
2358         do {
2359                 /* FDMI support. */
2360                 if (ql2xfdmienable &&
2361                     test_and_clear_bit(REGISTER_FDMI_NEEDED, &ha->dpc_flags))
2362                         qla2x00_fdmi_register(ha);
2363
2364                 /* Ensure we are logged into the SNS. */
2365                 if (IS_FWI2_CAPABLE(ha))
2366                         loop_id = NPH_SNS;
2367                 else
2368                         loop_id = SIMPLE_NAME_SERVER;
2369                 ha->isp_ops->fabric_login(ha, loop_id, 0xff, 0xff,
2370                     0xfc, mb, BIT_1 | BIT_0);
2371                 if (mb[0] != MBS_COMMAND_COMPLETE) {
2372                         DEBUG2(qla_printk(KERN_INFO, ha,
2373                             "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x "
2374                             "mb[2]=%x mb[6]=%x mb[7]=%x\n", loop_id,
2375                             mb[0], mb[1], mb[2], mb[6], mb[7]));
2376                         return (QLA_SUCCESS);
2377                 }
2378
2379                 if (test_and_clear_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags)) {
2380                         if (qla2x00_rft_id(ha)) {
2381                                 /* EMPTY */
2382                                 DEBUG2(printk("scsi(%ld): Register FC-4 "
2383                                     "TYPE failed.\n", ha->host_no));
2384                         }
2385                         if (qla2x00_rff_id(ha)) {
2386                                 /* EMPTY */
2387                                 DEBUG2(printk("scsi(%ld): Register FC-4 "
2388                                     "Features failed.\n", ha->host_no));
2389                         }
2390                         if (qla2x00_rnn_id(ha)) {
2391                                 /* EMPTY */
2392                                 DEBUG2(printk("scsi(%ld): Register Node Name "
2393                                     "failed.\n", ha->host_no));
2394                         } else if (qla2x00_rsnn_nn(ha)) {
2395                                 /* EMPTY */
2396                                 DEBUG2(printk("scsi(%ld): Register Symbolic "
2397                                     "Node Name failed.\n", ha->host_no));
2398                         }
2399                 }
2400
2401                 rval = qla2x00_find_all_fabric_devs(ha, &new_fcports);
2402                 if (rval != QLA_SUCCESS)
2403                         break;
2404
2405                 /*
2406                  * Logout all previous fabric devices marked lost, except
2407                  * tape devices.
2408                  */
2409                 list_for_each_entry(fcport, &pha->fcports, list) {
2410                         if (fcport->vp_idx !=ha->vp_idx)
2411                                 continue;
2412
2413                         if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2414                                 break;
2415
2416                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0)
2417                                 continue;
2418
2419                         if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2420                                 qla2x00_mark_device_lost(ha, fcport,
2421                                     ql2xplogiabsentdevice, 0);
2422                                 if (fcport->loop_id != FC_NO_LOOP_ID &&
2423                                     (fcport->flags & FCF_TAPE_PRESENT) == 0 &&
2424                                     fcport->port_type != FCT_INITIATOR &&
2425                                     fcport->port_type != FCT_BROADCAST) {
2426                                         ha->isp_ops->fabric_logout(ha,
2427                                             fcport->loop_id,
2428                                             fcport->d_id.b.domain,
2429                                             fcport->d_id.b.area,
2430                                             fcport->d_id.b.al_pa);
2431                                         fcport->loop_id = FC_NO_LOOP_ID;
2432                                 }
2433                         }
2434                 }
2435
2436                 /* Starting free loop ID. */
2437                 next_loopid = pha->min_external_loopid;
2438
2439                 /*
2440                  * Scan through our port list and login entries that need to be
2441                  * logged in.
2442                  */
2443                 list_for_each_entry(fcport, &pha->fcports, list) {
2444                         if (fcport->vp_idx != ha->vp_idx)
2445                                 continue;
2446
2447                         if (atomic_read(&ha->loop_down_timer) ||
2448                             test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2449                                 break;
2450
2451                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 ||
2452                             (fcport->flags & FCF_LOGIN_NEEDED) == 0)
2453                                 continue;
2454
2455                         if (fcport->loop_id == FC_NO_LOOP_ID) {
2456                                 fcport->loop_id = next_loopid;
2457                                 rval = qla2x00_find_new_loop_id(
2458                                     to_qla_parent(ha), fcport);
2459                                 if (rval != QLA_SUCCESS) {
2460                                         /* Ran out of IDs to use */
2461                                         break;
2462                                 }
2463                         }
2464                         /* Login and update database */
2465                         qla2x00_fabric_dev_login(ha, fcport, &next_loopid);
2466                 }
2467
2468                 /* Exit if out of loop IDs. */
2469                 if (rval != QLA_SUCCESS) {
2470                         break;
2471                 }
2472
2473                 /*
2474                  * Login and add the new devices to our port list.
2475                  */
2476                 list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) {
2477                         if (atomic_read(&ha->loop_down_timer) ||
2478                             test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2479                                 break;
2480
2481                         /* Find a new loop ID to use. */
2482                         fcport->loop_id = next_loopid;
2483                         rval = qla2x00_find_new_loop_id(to_qla_parent(ha),
2484                             fcport);
2485                         if (rval != QLA_SUCCESS) {
2486                                 /* Ran out of IDs to use */
2487                                 break;
2488                         }
2489
2490                         /* Login and update database */
2491                         qla2x00_fabric_dev_login(ha, fcport, &next_loopid);
2492
2493                         if (ha->parent) {
2494                                 fcport->ha = ha;
2495                                 fcport->vp_idx = ha->vp_idx;
2496                                 list_add_tail(&fcport->vp_fcport,
2497                                     &ha->vp_fcports);
2498                                 list_move_tail(&fcport->list,
2499                                     &ha->parent->fcports);
2500                         } else
2501                                 list_move_tail(&fcport->list, &ha->fcports);
2502                 }
2503         } while (0);
2504
2505         /* Free all new device structures not processed. */
2506         list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) {
2507                 list_del(&fcport->list);
2508                 kfree(fcport);
2509         }
2510
2511         if (rval) {
2512                 DEBUG2(printk("scsi(%ld): Configure fabric error exit: "
2513                     "rval=%d\n", ha->host_no, rval));
2514         }
2515
2516         return (rval);
2517 }
2518
2519
2520 /*
2521  * qla2x00_find_all_fabric_devs
2522  *
2523  * Input:
2524  *      ha = adapter block pointer.
2525  *      dev = database device entry pointer.
2526  *
2527  * Returns:
2528  *      0 = success.
2529  *
2530  * Context:
2531  *      Kernel context.
2532  */
2533 static int
2534 qla2x00_find_all_fabric_devs(scsi_qla_host_t *ha, struct list_head *new_fcports)
2535 {
2536         int             rval;
2537         uint16_t        loop_id;
2538         fc_port_t       *fcport, *new_fcport, *fcptemp;
2539         int             found;
2540
2541         sw_info_t       *swl;
2542         int             swl_idx;
2543         int             first_dev, last_dev;
2544         port_id_t       wrap, nxt_d_id;
2545         int             vp_index;
2546         int             empty_vp_index;
2547         int             found_vp;
2548         scsi_qla_host_t *vha;
2549         scsi_qla_host_t *pha = to_qla_parent(ha);
2550
2551         rval = QLA_SUCCESS;
2552
2553         /* Try GID_PT to get device list, else GAN. */
2554         swl = kcalloc(MAX_FIBRE_DEVICES, sizeof(sw_info_t), GFP_ATOMIC);
2555         if (!swl) {
2556                 /*EMPTY*/
2557                 DEBUG2(printk("scsi(%ld): GID_PT allocations failed, fallback "
2558                     "on GA_NXT\n", ha->host_no));
2559         } else {
2560                 if (qla2x00_gid_pt(ha, swl) != QLA_SUCCESS) {
2561                         kfree(swl);
2562                         swl = NULL;
2563                 } else if (qla2x00_gpn_id(ha, swl) != QLA_SUCCESS) {
2564                         kfree(swl);
2565                         swl = NULL;
2566                 } else if (qla2x00_gnn_id(ha, swl) != QLA_SUCCESS) {
2567                         kfree(swl);
2568                         swl = NULL;
2569                 } else if (ql2xiidmaenable &&
2570                     qla2x00_gfpn_id(ha, swl) == QLA_SUCCESS) {
2571                         qla2x00_gpsc(ha, swl);
2572                 }
2573         }
2574         swl_idx = 0;
2575
2576         /* Allocate temporary fcport for any new fcports discovered. */
2577         new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
2578         if (new_fcport == NULL) {
2579                 kfree(swl);
2580                 return (QLA_MEMORY_ALLOC_FAILED);
2581         }
2582         new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
2583         new_fcport->vp_idx = ha->vp_idx;
2584         /* Set start port ID scan at adapter ID. */
2585         first_dev = 1;
2586         last_dev = 0;
2587
2588         /* Starting free loop ID. */
2589         loop_id = pha->min_external_loopid;
2590         for (; loop_id <= ha->last_loop_id; loop_id++) {
2591                 if (qla2x00_is_reserved_id(ha, loop_id))
2592                         continue;
2593
2594                 if (atomic_read(&ha->loop_down_timer) || LOOP_TRANSITION(ha))
2595                         break;
2596
2597                 if (swl != NULL) {
2598                         if (last_dev) {
2599                                 wrap.b24 = new_fcport->d_id.b24;
2600                         } else {
2601                                 new_fcport->d_id.b24 = swl[swl_idx].d_id.b24;
2602                                 memcpy(new_fcport->node_name,
2603                                     swl[swl_idx].node_name, WWN_SIZE);
2604                                 memcpy(new_fcport->port_name,
2605                                     swl[swl_idx].port_name, WWN_SIZE);
2606                                 memcpy(new_fcport->fabric_port_name,
2607                                     swl[swl_idx].fabric_port_name, WWN_SIZE);
2608                                 new_fcport->fp_speed = swl[swl_idx].fp_speed;
2609
2610                                 if (swl[swl_idx].d_id.b.rsvd_1 != 0) {
2611                                         last_dev = 1;
2612                                 }
2613                                 swl_idx++;
2614                         }
2615                 } else {
2616                         /* Send GA_NXT to the switch */
2617                         rval = qla2x00_ga_nxt(ha, new_fcport);
2618                         if (rval != QLA_SUCCESS) {
2619                                 qla_printk(KERN_WARNING, ha,
2620                                     "SNS scan failed -- assuming zero-entry "
2621                                     "result...\n");
2622                                 list_for_each_entry_safe(fcport, fcptemp,
2623                                     new_fcports, list) {
2624                                         list_del(&fcport->list);
2625                                         kfree(fcport);
2626                                 }
2627                                 rval = QLA_SUCCESS;
2628                                 break;
2629                         }
2630                 }
2631
2632                 /* If wrap on switch device list, exit. */
2633                 if (first_dev) {
2634                         wrap.b24 = new_fcport->d_id.b24;
2635                         first_dev = 0;
2636                 } else if (new_fcport->d_id.b24 == wrap.b24) {
2637                         DEBUG2(printk("scsi(%ld): device wrap (%02x%02x%02x)\n",
2638                             ha->host_no, new_fcport->d_id.b.domain,
2639                             new_fcport->d_id.b.area, new_fcport->d_id.b.al_pa));
2640                         break;
2641                 }
2642
2643                 /* Bypass if same physical adapter. */
2644                 if (new_fcport->d_id.b24 == pha->d_id.b24)
2645                         continue;
2646
2647                 /* Bypass virtual ports of the same host. */
2648                 if (pha->num_vhosts) {
2649                         for_each_mapped_vp_idx(pha, vp_index) {
2650                                 empty_vp_index = 1;
2651                                 found_vp = 0;
2652                                 list_for_each_entry(vha, &pha->vp_list,
2653                                     vp_list) {
2654                                         if (vp_index == vha->vp_idx) {
2655                                                 empty_vp_index = 0;
2656                                                 found_vp = 1;
2657                                                 break;
2658                                         }
2659                                 }
2660
2661                                 if (empty_vp_index)
2662                                         continue;
2663
2664                                 if (found_vp &&
2665                                     new_fcport->d_id.b24 == vha->d_id.b24)
2666                                         break;
2667                         }
2668
2669                         if (vp_index <= pha->max_npiv_vports)
2670                                 continue;
2671                 }
2672
2673                 /* Bypass if same domain and area of adapter. */
2674                 if (((new_fcport->d_id.b24 & 0xffff00) ==
2675                     (ha->d_id.b24 & 0xffff00)) && ha->current_topology ==
2676                         ISP_CFG_FL)
2677                             continue;
2678
2679                 /* Bypass reserved domain fields. */
2680                 if ((new_fcport->d_id.b.domain & 0xf0) == 0xf0)
2681                         continue;
2682
2683                 /* Locate matching device in database. */
2684                 found = 0;
2685                 list_for_each_entry(fcport, &pha->fcports, list) {
2686                         if (new_fcport->vp_idx != fcport->vp_idx)
2687                                 continue;
2688                         if (memcmp(new_fcport->port_name, fcport->port_name,
2689                             WWN_SIZE))
2690                                 continue;
2691
2692                         found++;
2693
2694                         /* Update port state. */
2695                         memcpy(fcport->fabric_port_name,
2696                             new_fcport->fabric_port_name, WWN_SIZE);
2697                         fcport->fp_speed = new_fcport->fp_speed;
2698
2699                         /*
2700                          * If address the same and state FCS_ONLINE, nothing
2701                          * changed.
2702                          */
2703                         if (fcport->d_id.b24 == new_fcport->d_id.b24 &&
2704                             atomic_read(&fcport->state) == FCS_ONLINE) {
2705                                 break;
2706                         }
2707
2708                         /*
2709                          * If device was not a fabric device before.
2710                          */
2711                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) {
2712                                 fcport->d_id.b24 = new_fcport->d_id.b24;
2713                                 fcport->loop_id = FC_NO_LOOP_ID;
2714                                 fcport->flags |= (FCF_FABRIC_DEVICE |
2715                                     FCF_LOGIN_NEEDED);
2716                                 fcport->flags &= ~FCF_PERSISTENT_BOUND;
2717                                 break;
2718                         }
2719
2720                         /*
2721                          * Port ID changed or device was marked to be updated;
2722                          * Log it out if still logged in and mark it for
2723                          * relogin later.
2724                          */
2725                         fcport->d_id.b24 = new_fcport->d_id.b24;
2726                         fcport->flags |= FCF_LOGIN_NEEDED;
2727                         if (fcport->loop_id != FC_NO_LOOP_ID &&
2728                             (fcport->flags & FCF_TAPE_PRESENT) == 0 &&
2729                             fcport->port_type != FCT_INITIATOR &&
2730                             fcport->port_type != FCT_BROADCAST) {
2731                                 ha->isp_ops->fabric_logout(ha, fcport->loop_id,
2732                                     fcport->d_id.b.domain, fcport->d_id.b.area,
2733                                     fcport->d_id.b.al_pa);
2734                                 fcport->loop_id = FC_NO_LOOP_ID;
2735                         }
2736
2737                         break;
2738                 }
2739
2740                 if (found)
2741                         continue;
2742
2743                 /* If device was not in our fcports list, then add it. */
2744                 list_add_tail(&new_fcport->list, new_fcports);
2745
2746                 /* Allocate a new replacement fcport. */
2747                 nxt_d_id.b24 = new_fcport->d_id.b24;
2748                 new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
2749                 if (new_fcport == NULL) {
2750                         kfree(swl);
2751                         return (QLA_MEMORY_ALLOC_FAILED);
2752                 }
2753                 new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
2754                 new_fcport->d_id.b24 = nxt_d_id.b24;
2755                 new_fcport->vp_idx = ha->vp_idx;
2756         }
2757
2758         kfree(swl);
2759         kfree(new_fcport);
2760
2761         if (!list_empty(new_fcports))
2762                 ha->device_flags |= DFLG_FABRIC_DEVICES;
2763
2764         return (rval);
2765 }
2766
2767 /*
2768  * qla2x00_find_new_loop_id
2769  *      Scan through our port list and find a new usable loop ID.
2770  *
2771  * Input:
2772  *      ha:     adapter state pointer.
2773  *      dev:    port structure pointer.
2774  *
2775  * Returns:
2776  *      qla2x00 local function return status code.
2777  *
2778  * Context:
2779  *      Kernel context.
2780  */
2781 static int
2782 qla2x00_find_new_loop_id(scsi_qla_host_t *ha, fc_port_t *dev)
2783 {
2784         int     rval;
2785         int     found;
2786         fc_port_t *fcport;
2787         uint16_t first_loop_id;
2788         scsi_qla_host_t *pha = to_qla_parent(ha);
2789
2790         rval = QLA_SUCCESS;
2791
2792         /* Save starting loop ID. */
2793         first_loop_id = dev->loop_id;
2794
2795         for (;;) {
2796                 /* Skip loop ID if already used by adapter. */
2797                 if (dev->loop_id == ha->loop_id) {
2798                         dev->loop_id++;
2799                 }
2800
2801                 /* Skip reserved loop IDs. */
2802                 while (qla2x00_is_reserved_id(ha, dev->loop_id)) {
2803                         dev->loop_id++;
2804                 }
2805
2806                 /* Reset loop ID if passed the end. */
2807                 if (dev->loop_id > ha->last_loop_id) {
2808                         /* first loop ID. */
2809                         dev->loop_id = ha->min_external_loopid;
2810                 }
2811
2812                 /* Check for loop ID being already in use. */
2813                 found = 0;
2814                 fcport = NULL;
2815                 list_for_each_entry(fcport, &pha->fcports, list) {
2816                         if (fcport->loop_id == dev->loop_id && fcport != dev) {
2817                                 /* ID possibly in use */
2818                                 found++;
2819                                 break;
2820                         }
2821                 }
2822
2823                 /* If not in use then it is free to use. */
2824                 if (!found) {
2825                         break;
2826                 }
2827
2828                 /* ID in use. Try next value. */
2829                 dev->loop_id++;
2830
2831                 /* If wrap around. No free ID to use. */
2832                 if (dev->loop_id == first_loop_id) {
2833                         dev->loop_id = FC_NO_LOOP_ID;
2834                         rval = QLA_FUNCTION_FAILED;
2835                         break;
2836                 }
2837         }
2838
2839         return (rval);
2840 }
2841
2842 /*
2843  * qla2x00_device_resync
2844  *      Marks devices in the database that needs resynchronization.
2845  *
2846  * Input:
2847  *      ha = adapter block pointer.
2848  *
2849  * Context:
2850  *      Kernel context.
2851  */
2852 static int
2853 qla2x00_device_resync(scsi_qla_host_t *ha)
2854 {
2855         int     rval;
2856         uint32_t mask;
2857         fc_port_t *fcport;
2858         uint32_t rscn_entry;
2859         uint8_t rscn_out_iter;
2860         uint8_t format;
2861         port_id_t d_id;
2862         scsi_qla_host_t *pha = to_qla_parent(ha);
2863
2864         rval = QLA_RSCNS_HANDLED;
2865
2866         while (ha->rscn_out_ptr != ha->rscn_in_ptr ||
2867             ha->flags.rscn_queue_overflow) {
2868
2869                 rscn_entry = ha->rscn_queue[ha->rscn_out_ptr];
2870                 format = MSB(MSW(rscn_entry));
2871                 d_id.b.domain = LSB(MSW(rscn_entry));
2872                 d_id.b.area = MSB(LSW(rscn_entry));
2873                 d_id.b.al_pa = LSB(LSW(rscn_entry));
2874
2875                 DEBUG(printk("scsi(%ld): RSCN queue entry[%d] = "
2876                     "[%02x/%02x%02x%02x].\n",
2877                     ha->host_no, ha->rscn_out_ptr, format, d_id.b.domain,
2878                     d_id.b.area, d_id.b.al_pa));
2879
2880                 ha->rscn_out_ptr++;
2881                 if (ha->rscn_out_ptr == MAX_RSCN_COUNT)
2882                         ha->rscn_out_ptr = 0;
2883
2884                 /* Skip duplicate entries. */
2885                 for (rscn_out_iter = ha->rscn_out_ptr;
2886                     !ha->flags.rscn_queue_overflow &&
2887                     rscn_out_iter != ha->rscn_in_ptr;
2888                     rscn_out_iter = (rscn_out_iter ==
2889                         (MAX_RSCN_COUNT - 1)) ? 0: rscn_out_iter + 1) {
2890
2891                         if (rscn_entry != ha->rscn_queue[rscn_out_iter])
2892                                 break;
2893
2894                         DEBUG(printk("scsi(%ld): Skipping duplicate RSCN queue "
2895                             "entry found at [%d].\n", ha->host_no,
2896                             rscn_out_iter));
2897
2898                         ha->rscn_out_ptr = rscn_out_iter;
2899                 }
2900
2901                 /* Queue overflow, set switch default case. */
2902                 if (ha->flags.rscn_queue_overflow) {
2903                         DEBUG(printk("scsi(%ld): device_resync: rscn "
2904                             "overflow.\n", ha->host_no));
2905
2906                         format = 3;
2907                         ha->flags.rscn_queue_overflow = 0;
2908                 }
2909
2910                 switch (format) {
2911                 case 0:
2912                         mask = 0xffffff;
2913                         break;
2914                 case 1:
2915                         mask = 0xffff00;
2916                         break;
2917                 case 2:
2918                         mask = 0xff0000;
2919                         break;
2920                 default:
2921                         mask = 0x0;
2922                         d_id.b24 = 0;
2923                         ha->rscn_out_ptr = ha->rscn_in_ptr;
2924                         break;
2925                 }
2926
2927                 rval = QLA_SUCCESS;
2928
2929                 list_for_each_entry(fcport, &pha->fcports, list) {
2930                         if (fcport->vp_idx != ha->vp_idx)
2931                                 continue;
2932
2933                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 ||
2934                             (fcport->d_id.b24 & mask) != d_id.b24 ||
2935                             fcport->port_type == FCT_BROADCAST)
2936                                 continue;
2937
2938                         if (atomic_read(&fcport->state) == FCS_ONLINE) {
2939                                 if (format != 3 ||
2940                                     fcport->port_type != FCT_INITIATOR) {
2941                                         qla2x00_mark_device_lost(ha, fcport,
2942                                             0, 0);
2943                                 }
2944                         }
2945                         fcport->flags &= ~FCF_FARP_DONE;
2946                 }
2947         }
2948         return (rval);
2949 }
2950
2951 /*
2952  * qla2x00_fabric_dev_login
2953  *      Login fabric target device and update FC port database.
2954  *
2955  * Input:
2956  *      ha:             adapter state pointer.
2957  *      fcport:         port structure list pointer.
2958  *      next_loopid:    contains value of a new loop ID that can be used
2959  *                      by the next login attempt.
2960  *
2961  * Returns:
2962  *      qla2x00 local function return status code.
2963  *
2964  * Context:
2965  *      Kernel context.
2966  */
2967 static int
2968 qla2x00_fabric_dev_login(scsi_qla_host_t *ha, fc_port_t *fcport,
2969     uint16_t *next_loopid)
2970 {
2971         int     rval;
2972         int     retry;
2973         uint8_t opts;
2974
2975         rval = QLA_SUCCESS;
2976         retry = 0;
2977
2978         rval = qla2x00_fabric_login(ha, fcport, next_loopid);
2979         if (rval == QLA_SUCCESS) {
2980                 /* Send an ADISC to tape devices.*/
2981                 opts = 0;
2982                 if (fcport->flags & FCF_TAPE_PRESENT)
2983                         opts |= BIT_1;
2984                 rval = qla2x00_get_port_database(ha, fcport, opts);
2985                 if (rval != QLA_SUCCESS) {
2986                         ha->isp_ops->fabric_logout(ha, fcport->loop_id,
2987                             fcport->d_id.b.domain, fcport->d_id.b.area,
2988                             fcport->d_id.b.al_pa);
2989                         qla2x00_mark_device_lost(ha, fcport, 1, 0);
2990                 } else {
2991                         qla2x00_update_fcport(ha, fcport);
2992                 }
2993         }
2994
2995         return (rval);
2996 }
2997
2998 /*
2999  * qla2x00_fabric_login
3000  *      Issue fabric login command.
3001  *
3002  * Input:
3003  *      ha = adapter block pointer.
3004  *      device = pointer to FC device type structure.
3005  *
3006  * Returns:
3007  *      0 - Login successfully
3008  *      1 - Login failed
3009  *      2 - Initiator device
3010  *      3 - Fatal error
3011  */
3012 int
3013 qla2x00_fabric_login(scsi_qla_host_t *ha, fc_port_t *fcport,
3014     uint16_t *next_loopid)
3015 {
3016         int     rval;
3017         int     retry;
3018         uint16_t tmp_loopid;
3019         uint16_t mb[MAILBOX_REGISTER_COUNT];
3020
3021         retry = 0;
3022         tmp_loopid = 0;
3023
3024         for (;;) {
3025                 DEBUG(printk("scsi(%ld): Trying Fabric Login w/loop id 0x%04x "
3026                     "for port %02x%02x%02x.\n",
3027                     ha->host_no, fcport->loop_id, fcport->d_id.b.domain,
3028                     fcport->d_id.b.area, fcport->d_id.b.al_pa));
3029
3030                 /* Login fcport on switch. */
3031                 ha->isp_ops->fabric_login(ha, fcport->loop_id,
3032                     fcport->d_id.b.domain, fcport->d_id.b.area,
3033                     fcport->d_id.b.al_pa, mb, BIT_0);
3034                 if (mb[0] == MBS_PORT_ID_USED) {
3035                         /*
3036                          * Device has another loop ID.  The firmware team
3037                          * recommends the driver perform an implicit login with
3038                          * the specified ID again. The ID we just used is save
3039                          * here so we return with an ID that can be tried by
3040                          * the next login.
3041                          */
3042                         retry++;
3043                         tmp_loopid = fcport->loop_id;
3044                         fcport->loop_id = mb[1];
3045
3046                         DEBUG(printk("Fabric Login: port in use - next "
3047                             "loop id=0x%04x, port Id=%02x%02x%02x.\n",
3048                             fcport->loop_id, fcport->d_id.b.domain,
3049                             fcport->d_id.b.area, fcport->d_id.b.al_pa));
3050
3051                 } else if (mb[0] == MBS_COMMAND_COMPLETE) {
3052                         /*
3053                          * Login succeeded.
3054                          */
3055                         if (retry) {
3056                                 /* A retry occurred before. */
3057                                 *next_loopid = tmp_loopid;
3058                         } else {
3059                                 /*
3060                                  * No retry occurred before. Just increment the
3061                                  * ID value for next login.
3062                                  */
3063                                 *next_loopid = (fcport->loop_id + 1);
3064                         }
3065
3066                         if (mb[1] & BIT_0) {
3067                                 fcport->port_type = FCT_INITIATOR;
3068                         } else {
3069                                 fcport->port_type = FCT_TARGET;
3070                                 if (mb[1] & BIT_1) {
3071                                         fcport->flags |= FCF_TAPE_PRESENT;
3072                                 }
3073                         }
3074
3075                         if (mb[10] & BIT_0)
3076                                 fcport->supported_classes |= FC_COS_CLASS2;
3077                         if (mb[10] & BIT_1)
3078                                 fcport->supported_classes |= FC_COS_CLASS3;
3079
3080                         rval = QLA_SUCCESS;
3081                         break;
3082                 } else if (mb[0] == MBS_LOOP_ID_USED) {
3083                         /*
3084                          * Loop ID already used, try next loop ID.
3085                          */
3086                         fcport->loop_id++;
3087                         rval = qla2x00_find_new_loop_id(ha, fcport);
3088                         if (rval != QLA_SUCCESS) {
3089                                 /* Ran out of loop IDs to use */
3090                                 break;
3091                         }
3092                 } else if (mb[0] == MBS_COMMAND_ERROR) {
3093                         /*
3094                          * Firmware possibly timed out during login. If NO
3095                          * retries are left to do then the device is declared
3096                          * dead.
3097                          */
3098                         *next_loopid = fcport->loop_id;
3099                         ha->isp_ops->fabric_logout(ha, fcport->loop_id,
3100                             fcport->d_id.b.domain, fcport->d_id.b.area,
3101                             fcport->d_id.b.al_pa);
3102                         qla2x00_mark_device_lost(ha, fcport, 1, 0);
3103
3104                         rval = 1;
3105                         break;
3106                 } else {
3107                         /*
3108                          * unrecoverable / not handled error
3109                          */
3110                         DEBUG2(printk("%s(%ld): failed=%x port_id=%02x%02x%02x "
3111                             "loop_id=%x jiffies=%lx.\n",
3112                             __func__, ha->host_no, mb[0],
3113                             fcport->d_id.b.domain, fcport->d_id.b.area,
3114                             fcport->d_id.b.al_pa, fcport->loop_id, jiffies));
3115
3116                         *next_loopid = fcport->loop_id;
3117                         ha->isp_ops->fabric_logout(ha, fcport->loop_id,
3118                             fcport->d_id.b.domain, fcport->d_id.b.area,
3119                             fcport->d_id.b.al_pa);
3120                         fcport->loop_id = FC_NO_LOOP_ID;
3121                         fcport->login_retry = 0;
3122
3123                         rval = 3;
3124                         break;
3125                 }
3126         }
3127
3128         return (rval);
3129 }
3130
3131 /*
3132  * qla2x00_local_device_login
3133  *      Issue local device login command.
3134  *
3135  * Input:
3136  *      ha = adapter block pointer.
3137  *      loop_id = loop id of device to login to.
3138  *
3139  * Returns (Where's the #define!!!!):
3140  *      0 - Login successfully
3141  *      1 - Login failed
3142  *      3 - Fatal error
3143  */
3144 int
3145 qla2x00_local_device_login(scsi_qla_host_t *ha, fc_port_t *fcport)
3146 {
3147         int             rval;
3148         uint16_t        mb[MAILBOX_REGISTER_COUNT];
3149
3150         memset(mb, 0, sizeof(mb));
3151         rval = qla2x00_login_local_device(ha, fcport, mb, BIT_0);
3152         if (rval == QLA_SUCCESS) {
3153                 /* Interrogate mailbox registers for any errors */
3154                 if (mb[0] == MBS_COMMAND_ERROR)
3155                         rval = 1;
3156                 else if (mb[0] == MBS_COMMAND_PARAMETER_ERROR)
3157                         /* device not in PCB table */
3158                         rval = 3;
3159         }
3160
3161         return (rval);
3162 }
3163
3164 /*
3165  *  qla2x00_loop_resync
3166  *      Resync with fibre channel devices.
3167  *
3168  * Input:
3169  *      ha = adapter block pointer.
3170  *
3171  * Returns:
3172  *      0 = success
3173  */
3174 int
3175 qla2x00_loop_resync(scsi_qla_host_t *ha)
3176 {
3177         int   rval;
3178         uint32_t wait_time;
3179
3180         rval = QLA_SUCCESS;
3181
3182         atomic_set(&ha->loop_state, LOOP_UPDATE);
3183         clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
3184         if (ha->flags.online) {
3185                 if (!(rval = qla2x00_fw_ready(ha))) {
3186                         /* Wait at most MAX_TARGET RSCNs for a stable link. */
3187                         wait_time = 256;
3188                         do {
3189                                 atomic_set(&ha->loop_state, LOOP_UPDATE);
3190
3191                                 /* Issue a marker after FW becomes ready. */
3192                                 qla2x00_marker(ha, 0, 0, MK_SYNC_ALL);
3193                                 ha->marker_needed = 0;
3194
3195                                 /* Remap devices on Loop. */
3196                                 clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
3197
3198                                 qla2x00_configure_loop(ha);
3199                                 wait_time--;
3200                         } while (!atomic_read(&ha->loop_down_timer) &&
3201                                 !(test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) &&
3202                                 wait_time &&
3203                                 (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)));
3204                 }
3205         }
3206
3207         if (test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
3208                 return (QLA_FUNCTION_FAILED);
3209         }
3210
3211         if (rval) {
3212                 DEBUG2_3(printk("%s(): **** FAILED ****\n", __func__));
3213         }
3214
3215         return (rval);
3216 }
3217
3218 void
3219 qla2x00_update_fcports(scsi_qla_host_t *ha)
3220 {
3221         fc_port_t *fcport;
3222
3223         /* Go with deferred removal of rport references. */
3224         list_for_each_entry(fcport, &ha->fcports, list)
3225                 if (fcport->drport)
3226                         qla2x00_rport_del(fcport);
3227 }
3228
3229 /*
3230 *  qla2x00_abort_isp
3231 *      Resets ISP and aborts all outstanding commands.
3232 *
3233 * Input:
3234 *      ha           = adapter block pointer.
3235 *
3236 * Returns:
3237 *      0 = success
3238 */
3239 int
3240 qla2x00_abort_isp(scsi_qla_host_t *ha)
3241 {
3242         int rval;
3243         uint8_t        status = 0;
3244
3245         if (ha->flags.online) {
3246                 ha->flags.online = 0;
3247                 clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
3248                 ha->qla_stats.total_isp_aborts++;
3249
3250                 qla_printk(KERN_INFO, ha,
3251                     "Performing ISP error recovery - ha= %p.\n", ha);
3252                 ha->isp_ops->reset_chip(ha);
3253
3254                 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
3255                 if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
3256                         atomic_set(&ha->loop_state, LOOP_DOWN);
3257                         qla2x00_mark_all_devices_lost(ha, 0);
3258                 } else {
3259                         if (!atomic_read(&ha->loop_down_timer))
3260                                 atomic_set(&ha->loop_down_timer,
3261                                     LOOP_DOWN_TIME);
3262                 }
3263
3264                 /* Requeue all commands in outstanding command list. */
3265                 qla2x00_abort_all_cmds(ha, DID_RESET << 16);
3266
3267                 ha->isp_ops->get_flash_version(ha, ha->request_ring);
3268
3269                 ha->isp_ops->nvram_config(ha);
3270
3271                 if (!qla2x00_restart_isp(ha)) {
3272                         clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
3273
3274                         if (!atomic_read(&ha->loop_down_timer)) {
3275                                 /*
3276                                  * Issue marker command only when we are going
3277                                  * to start the I/O .
3278                                  */
3279                                 ha->marker_needed = 1;
3280                         }
3281
3282                         ha->flags.online = 1;
3283
3284                         ha->isp_ops->enable_intrs(ha);
3285
3286                         ha->isp_abort_cnt = 0;
3287                         clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
3288
3289                         if (ha->fce) {
3290                                 ha->flags.fce_enabled = 1;
3291                                 memset(ha->fce, 0,
3292                                     fce_calc_size(ha->fce_bufs));
3293                                 rval = qla2x00_enable_fce_trace(ha,
3294                                     ha->fce_dma, ha->fce_bufs, ha->fce_mb,
3295                                     &ha->fce_bufs);
3296                                 if (rval) {
3297                                         qla_printk(KERN_WARNING, ha,
3298                                             "Unable to reinitialize FCE "
3299                                             "(%d).\n", rval);
3300                                         ha->flags.fce_enabled = 0;
3301                                 }
3302                         }
3303
3304                         if (ha->eft) {
3305                                 memset(ha->eft, 0, EFT_SIZE);
3306                                 rval = qla2x00_enable_eft_trace(ha,
3307                                     ha->eft_dma, EFT_NUM_BUFFERS);
3308                                 if (rval) {
3309                                         qla_printk(KERN_WARNING, ha,
3310                                             "Unable to reinitialize EFT "
3311                                             "(%d).\n", rval);
3312                                 }
3313                         }
3314                 } else {        /* failed the ISP abort */
3315                         ha->flags.online = 1;
3316                         if (test_bit(ISP_ABORT_RETRY, &ha->dpc_flags)) {
3317                                 if (ha->isp_abort_cnt == 0) {
3318                                         qla_printk(KERN_WARNING, ha,
3319                                             "ISP error recovery failed - "
3320                                             "board disabled\n");
3321                                         /*
3322                                          * The next call disables the board
3323                                          * completely.
3324                                          */
3325                                         ha->isp_ops->reset_adapter(ha);
3326                                         ha->flags.online = 0;
3327                                         clear_bit(ISP_ABORT_RETRY,
3328                                             &ha->dpc_flags);
3329                                         status = 0;
3330                                 } else { /* schedule another ISP abort */
3331                                         ha->isp_abort_cnt--;
3332                                         DEBUG(printk("qla%ld: ISP abort - "
3333                                             "retry remaining %d\n",
3334                                             ha->host_no, ha->isp_abort_cnt));
3335                                         status = 1;
3336                                 }
3337                         } else {
3338                                 ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT;
3339                                 DEBUG(printk("qla2x00(%ld): ISP error recovery "
3340                                     "- retrying (%d) more times\n",
3341                                     ha->host_no, ha->isp_abort_cnt));
3342                                 set_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
3343                                 status = 1;
3344                         }
3345                 }
3346
3347         }
3348
3349         if (status) {
3350                 qla_printk(KERN_INFO, ha,
3351                         "qla2x00_abort_isp: **** FAILED ****\n");
3352         } else {
3353                 DEBUG(printk(KERN_INFO
3354                                 "qla2x00_abort_isp(%ld): exiting.\n",
3355                                 ha->host_no));
3356         }
3357
3358         return(status);
3359 }
3360
3361 /*
3362 *  qla2x00_restart_isp
3363 *      restarts the ISP after a reset
3364 *
3365 * Input:
3366 *      ha = adapter block pointer.
3367 *
3368 * Returns:
3369 *      0 = success
3370 */
3371 static int
3372 qla2x00_restart_isp(scsi_qla_host_t *ha)
3373 {
3374         uint8_t         status = 0;
3375         uint32_t wait_time;
3376
3377         /* If firmware needs to be loaded */
3378         if (qla2x00_isp_firmware(ha)) {
3379                 ha->flags.online = 0;
3380                 if (!(status = ha->isp_ops->chip_diag(ha)))
3381                         status = qla2x00_setup_chip(ha);
3382         }
3383
3384         if (!status && !(status = qla2x00_init_rings(ha))) {
3385                 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
3386                 if (!(status = qla2x00_fw_ready(ha))) {
3387                         DEBUG(printk("%s(): Start configure loop, "
3388                             "status = %d\n", __func__, status));
3389
3390                         /* Issue a marker after FW becomes ready. */
3391                         qla2x00_marker(ha, 0, 0, MK_SYNC_ALL);
3392
3393                         ha->flags.online = 1;
3394                         /* Wait at most MAX_TARGET RSCNs for a stable link. */
3395                         wait_time = 256;
3396                         do {
3397                                 clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
3398                                 qla2x00_configure_loop(ha);
3399                                 wait_time--;
3400                         } while (!atomic_read(&ha->loop_down_timer) &&
3401                                 !(test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) &&
3402                                 wait_time &&
3403                                 (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)));
3404                 }
3405
3406                 /* if no cable then assume it's good */
3407                 if ((ha->device_flags & DFLG_NO_CABLE))
3408                         status = 0;
3409
3410                 DEBUG(printk("%s(): Configure loop done, status = 0x%x\n",
3411                                 __func__,
3412                                 status));
3413         }
3414         return (status);
3415 }
3416
3417 /*
3418 * qla2x00_reset_adapter
3419 *      Reset adapter.
3420 *
3421 * Input:
3422 *      ha = adapter block pointer.
3423 */
3424 void
3425 qla2x00_reset_adapter(scsi_qla_host_t *ha)
3426 {
3427         unsigned long flags = 0;
3428         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3429
3430         ha->flags.online = 0;
3431         ha->isp_ops->disable_intrs(ha);
3432
3433         spin_lock_irqsave(&ha->hardware_lock, flags);
3434         WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
3435         RD_REG_WORD(&reg->hccr);                        /* PCI Posting. */
3436         WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
3437         RD_REG_WORD(&reg->hccr);                        /* PCI Posting. */
3438         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3439 }
3440
3441 void
3442 qla24xx_reset_adapter(scsi_qla_host_t *ha)
3443 {
3444         unsigned long flags = 0;
3445         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
3446
3447         ha->flags.online = 0;
3448         ha->isp_ops->disable_intrs(ha);
3449
3450         spin_lock_irqsave(&ha->hardware_lock, flags);
3451         WRT_REG_DWORD(&reg->hccr, HCCRX_SET_RISC_RESET);
3452         RD_REG_DWORD(&reg->hccr);
3453         WRT_REG_DWORD(&reg->hccr, HCCRX_REL_RISC_PAUSE);
3454         RD_REG_DWORD(&reg->hccr);
3455         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3456 }
3457
3458 /* On sparc systems, obtain port and node WWN from firmware
3459  * properties.
3460  */
3461 static void qla24xx_nvram_wwn_from_ofw(scsi_qla_host_t *ha, struct nvram_24xx *nv)
3462 {
3463 #ifdef CONFIG_SPARC
3464         struct pci_dev *pdev = ha->pdev;
3465         struct device_node *dp = pci_device_to_OF_node(pdev);
3466         const u8 *val;
3467         int len;
3468
3469         val = of_get_property(dp, "port-wwn", &len);
3470         if (val && len >= WWN_SIZE)
3471                 memcpy(nv->port_name, val, WWN_SIZE);
3472
3473         val = of_get_property(dp, "node-wwn", &len);
3474         if (val && len >= WWN_SIZE)
3475                 memcpy(nv->node_name, val, WWN_SIZE);
3476 #endif
3477 }
3478
3479 int
3480 qla24xx_nvram_config(scsi_qla_host_t *ha)
3481 {
3482         int   rval;
3483         struct init_cb_24xx *icb;
3484         struct nvram_24xx *nv;
3485         uint32_t *dptr;
3486         uint8_t  *dptr1, *dptr2;
3487         uint32_t chksum;
3488         uint16_t cnt;
3489
3490         rval = QLA_SUCCESS;
3491         icb = (struct init_cb_24xx *)ha->init_cb;
3492         nv = ha->nvram;
3493
3494         /* Determine NVRAM starting address. */
3495         ha->nvram_size = sizeof(struct nvram_24xx);
3496         ha->nvram_base = FA_NVRAM_FUNC0_ADDR;
3497         ha->vpd_size = FA_NVRAM_VPD_SIZE;
3498         ha->vpd_base = FA_NVRAM_VPD0_ADDR;
3499         if (PCI_FUNC(ha->pdev->devfn)) {
3500                 ha->nvram_base = FA_NVRAM_FUNC1_ADDR;
3501                 ha->vpd_base = FA_NVRAM_VPD1_ADDR;
3502         }
3503
3504         /* Get VPD data into cache */
3505         ha->vpd = ha->nvram + VPD_OFFSET;
3506         ha->isp_ops->read_nvram(ha, (uint8_t *)ha->vpd,
3507             ha->nvram_base - FA_NVRAM_FUNC0_ADDR, FA_NVRAM_VPD_SIZE * 4);
3508
3509         /* Get NVRAM data into cache and calculate checksum. */
3510         dptr = (uint32_t *)nv;
3511         ha->isp_ops->read_nvram(ha, (uint8_t *)dptr, ha->nvram_base,
3512             ha->nvram_size);
3513         for (cnt = 0, chksum = 0; cnt < ha->nvram_size >> 2; cnt++)
3514                 chksum += le32_to_cpu(*dptr++);
3515
3516         DEBUG5(printk("scsi(%ld): Contents of NVRAM\n", ha->host_no));
3517         DEBUG5(qla2x00_dump_buffer((uint8_t *)nv, ha->nvram_size));
3518
3519         /* Bad NVRAM data, set defaults parameters. */
3520         if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' || nv->id[2] != 'P'
3521             || nv->id[3] != ' ' ||
3522             nv->nvram_version < __constant_cpu_to_le16(ICB_VERSION)) {
3523                 /* Reset NVRAM data. */
3524                 qla_printk(KERN_WARNING, ha, "Inconsistent NVRAM detected: "
3525                     "checksum=0x%x id=%c version=0x%x.\n", chksum, nv->id[0],
3526                     le16_to_cpu(nv->nvram_version));
3527                 qla_printk(KERN_WARNING, ha, "Falling back to functioning (yet "
3528                     "invalid -- WWPN) defaults.\n");
3529
3530                 /*
3531                  * Set default initialization control block.
3532                  */
3533                 memset(nv, 0, ha->nvram_size);
3534                 nv->nvram_version = __constant_cpu_to_le16(ICB_VERSION);
3535                 nv->version = __constant_cpu_to_le16(ICB_VERSION);
3536                 nv->frame_payload_size = __constant_cpu_to_le16(2048);
3537                 nv->execution_throttle = __constant_cpu_to_le16(0xFFFF);
3538                 nv->exchange_count = __constant_cpu_to_le16(0);
3539                 nv->hard_address = __constant_cpu_to_le16(124);
3540                 nv->port_name[0] = 0x21;
3541                 nv->port_name[1] = 0x00 + PCI_FUNC(ha->pdev->devfn);
3542                 nv->port_name[2] = 0x00;
3543                 nv->port_name[3] = 0xe0;
3544                 nv->port_name[4] = 0x8b;
3545                 nv->port_name[5] = 0x1c;
3546                 nv->port_name[6] = 0x55;
3547                 nv->port_name[7] = 0x86;
3548                 nv->node_name[0] = 0x20;
3549                 nv->node_name[1] = 0x00;
3550                 nv->node_name[2] = 0x00;
3551                 nv->node_name[3] = 0xe0;
3552                 nv->node_name[4] = 0x8b;
3553                 nv->node_name[5] = 0x1c;
3554                 nv->node_name[6] = 0x55;
3555                 nv->node_name[7] = 0x86;
3556                 qla24xx_nvram_wwn_from_ofw(ha, nv);
3557                 nv->login_retry_count = __constant_cpu_to_le16(8);
3558                 nv->interrupt_delay_timer = __constant_cpu_to_le16(0);
3559                 nv->login_timeout = __constant_cpu_to_le16(0);
3560                 nv->firmware_options_1 =
3561                     __constant_cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1);
3562                 nv->firmware_options_2 = __constant_cpu_to_le32(2 << 4);
3563                 nv->firmware_options_2 |= __constant_cpu_to_le32(BIT_12);
3564                 nv->firmware_options_3 = __constant_cpu_to_le32(2 << 13);
3565                 nv->host_p = __constant_cpu_to_le32(BIT_11|BIT_10);
3566                 nv->efi_parameters = __constant_cpu_to_le32(0);
3567                 nv->reset_delay = 5;
3568                 nv->max_luns_per_target = __constant_cpu_to_le16(128);
3569                 nv->port_down_retry_count = __constant_cpu_to_le16(30);
3570                 nv->link_down_timeout = __constant_cpu_to_le16(30);
3571
3572                 rval = 1;
3573         }
3574
3575         /* Reset Initialization control block */
3576         memset(icb, 0, sizeof(struct init_cb_24xx));
3577
3578         /* Copy 1st segment. */
3579         dptr1 = (uint8_t *)icb;
3580         dptr2 = (uint8_t *)&nv->version;
3581         cnt = (uint8_t *)&icb->response_q_inpointer - (uint8_t *)&icb->version;
3582         while (cnt--)
3583                 *dptr1++ = *dptr2++;
3584
3585         icb->login_retry_count = nv->login_retry_count;
3586         icb->link_down_on_nos = nv->link_down_on_nos;
3587
3588         /* Copy 2nd segment. */
3589         dptr1 = (uint8_t *)&icb->interrupt_delay_timer;
3590         dptr2 = (uint8_t *)&nv->interrupt_delay_timer;
3591         cnt = (uint8_t *)&icb->reserved_3 -
3592             (uint8_t *)&icb->interrupt_delay_timer;
3593         while (cnt--)
3594                 *dptr1++ = *dptr2++;
3595
3596         /*
3597          * Setup driver NVRAM options.
3598          */
3599         qla2x00_set_model_info(ha, nv->model_name, sizeof(nv->model_name),
3600             "QLA2462");
3601
3602         /* Use alternate WWN? */
3603         if (nv->host_p & __constant_cpu_to_le32(BIT_15)) {
3604                 memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
3605                 memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
3606         }
3607
3608         /* Prepare nodename */
3609         if ((icb->firmware_options_1 & __constant_cpu_to_le32(BIT_14)) == 0) {
3610                 /*
3611                  * Firmware will apply the following mask if the nodename was
3612                  * not provided.
3613                  */
3614                 memcpy(icb->node_name, icb->port_name, WWN_SIZE);
3615                 icb->node_name[0] &= 0xF0;
3616         }
3617
3618         /* Set host adapter parameters. */
3619         ha->flags.disable_risc_code_load = 0;
3620         ha->flags.enable_lip_reset = 0;
3621         ha->flags.enable_lip_full_login =
3622             le32_to_cpu(nv->host_p) & BIT_10 ? 1: 0;
3623         ha->flags.enable_target_reset =
3624             le32_to_cpu(nv->host_p) & BIT_11 ? 1: 0;
3625         ha->flags.enable_led_scheme = 0;
3626         ha->flags.disable_serdes = le32_to_cpu(nv->host_p) & BIT_5 ? 1: 0;
3627
3628         ha->operating_mode = (le32_to_cpu(icb->firmware_options_2) &
3629             (BIT_6 | BIT_5 | BIT_4)) >> 4;
3630
3631         memcpy(ha->fw_seriallink_options24, nv->seriallink_options,
3632             sizeof(ha->fw_seriallink_options24));
3633
3634         /* save HBA serial number */
3635         ha->serial0 = icb->port_name[5];
3636         ha->serial1 = icb->port_name[6];
3637         ha->serial2 = icb->port_name[7];
3638         ha->node_name = icb->node_name;
3639         ha->port_name = icb->port_name;
3640
3641         icb->execution_throttle = __constant_cpu_to_le16(0xFFFF);
3642
3643         ha->retry_count = le16_to_cpu(nv->login_retry_count);
3644
3645         /* Set minimum login_timeout to 4 seconds. */
3646         if (le16_to_cpu(nv->login_timeout) < ql2xlogintimeout)
3647                 nv->login_timeout = cpu_to_le16(ql2xlogintimeout);
3648         if (le16_to_cpu(nv->login_timeout) < 4)
3649                 nv->login_timeout = __constant_cpu_to_le16(4);
3650         ha->login_timeout = le16_to_cpu(nv->login_timeout);
3651         icb->login_timeout = nv->login_timeout;
3652
3653         /* Set minimum RATOV to 100 tenths of a second. */
3654         ha->r_a_tov = 100;
3655
3656         ha->loop_reset_delay = nv->reset_delay;
3657
3658         /* Link Down Timeout = 0:
3659          *
3660          *      When Port Down timer expires we will start returning
3661          *      I/O's to OS with "DID_NO_CONNECT".
3662          *
3663          * Link Down Timeout != 0:
3664          *
3665          *       The driver waits for the link to come up after link down
3666          *       before returning I/Os to OS with "DID_NO_CONNECT".
3667          */
3668         if (le16_to_cpu(nv->link_down_timeout) == 0) {
3669                 ha->loop_down_abort_time =
3670                     (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
3671         } else {
3672                 ha->link_down_timeout = le16_to_cpu(nv->link_down_timeout);
3673                 ha->loop_down_abort_time =
3674                     (LOOP_DOWN_TIME - ha->link_down_timeout);
3675         }
3676
3677         /* Need enough time to try and get the port back. */
3678         ha->port_down_retry_count = le16_to_cpu(nv->port_down_retry_count);
3679         if (qlport_down_retry)
3680                 ha->port_down_retry_count = qlport_down_retry;
3681
3682         /* Set login_retry_count */
3683         ha->login_retry_count  = le16_to_cpu(nv->login_retry_count);
3684         if (ha->port_down_retry_count ==
3685             le16_to_cpu(nv->port_down_retry_count) &&
3686             ha->port_down_retry_count > 3)
3687                 ha->login_retry_count = ha->port_down_retry_count;
3688         else if (ha->port_down_retry_count > (int)ha->login_retry_count)
3689                 ha->login_retry_count = ha->port_down_retry_count;
3690         if (ql2xloginretrycount)
3691                 ha->login_retry_count = ql2xloginretrycount;
3692
3693         /* Enable ZIO. */
3694         if (!ha->flags.init_done) {
3695                 ha->zio_mode = le32_to_cpu(icb->firmware_options_2) &
3696                     (BIT_3 | BIT_2 | BIT_1 | BIT_0);
3697                 ha->zio_timer = le16_to_cpu(icb->interrupt_delay_timer) ?
3698                     le16_to_cpu(icb->interrupt_delay_timer): 2;
3699         }
3700         icb->firmware_options_2 &= __constant_cpu_to_le32(
3701             ~(BIT_3 | BIT_2 | BIT_1 | BIT_0));
3702         ha->flags.process_response_queue = 0;
3703         if (ha->zio_mode != QLA_ZIO_DISABLED) {
3704                 ha->zio_mode = QLA_ZIO_MODE_6;
3705
3706                 DEBUG2(printk("scsi(%ld): ZIO mode %d enabled; timer delay "
3707                     "(%d us).\n", ha->host_no, ha->zio_mode,
3708                     ha->zio_timer * 100));
3709                 qla_printk(KERN_INFO, ha,
3710                     "ZIO mode %d enabled; timer delay (%d us).\n",
3711                     ha->zio_mode, ha->zio_timer * 100);
3712
3713                 icb->firmware_options_2 |= cpu_to_le32(
3714                     (uint32_t)ha->zio_mode);
3715                 icb->interrupt_delay_timer = cpu_to_le16(ha->zio_timer);
3716                 ha->flags.process_response_queue = 1;
3717         }
3718
3719         if (rval) {
3720                 DEBUG2_3(printk(KERN_WARNING
3721                     "scsi(%ld): NVRAM configuration failed!\n", ha->host_no));
3722         }
3723         return (rval);
3724 }
3725
3726 static int
3727 qla24xx_load_risc_flash(scsi_qla_host_t *ha, uint32_t *srisc_addr)
3728 {
3729         int     rval;
3730         int     segments, fragment;
3731         uint32_t faddr;
3732         uint32_t *dcode, dlen;
3733         uint32_t risc_addr;
3734         uint32_t risc_size;
3735         uint32_t i;
3736
3737         rval = QLA_SUCCESS;
3738
3739         segments = FA_RISC_CODE_SEGMENTS;
3740         faddr = FA_RISC_CODE_ADDR;
3741         dcode = (uint32_t *)ha->request_ring;
3742         *srisc_addr = 0;
3743
3744         /* Validate firmware image by checking version. */
3745         qla24xx_read_flash_data(ha, dcode, faddr + 4, 4);
3746         for (i = 0; i < 4; i++)
3747                 dcode[i] = be32_to_cpu(dcode[i]);
3748         if ((dcode[0] == 0xffffffff && dcode[1] == 0xffffffff &&
3749             dcode[2] == 0xffffffff && dcode[3] == 0xffffffff) ||
3750             (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
3751                 dcode[3] == 0)) {
3752                 qla_printk(KERN_WARNING, ha,
3753                     "Unable to verify integrity of flash firmware image!\n");
3754                 qla_printk(KERN_WARNING, ha,
3755                     "Firmware data: %08x %08x %08x %08x!\n", dcode[0],
3756                     dcode[1], dcode[2], dcode[3]);
3757
3758                 return QLA_FUNCTION_FAILED;
3759         }
3760
3761         while (segments && rval == QLA_SUCCESS) {
3762                 /* Read segment's load information. */
3763                 qla24xx_read_flash_data(ha, dcode, faddr, 4);
3764
3765                 risc_addr = be32_to_cpu(dcode[2]);
3766                 *srisc_addr = *srisc_addr == 0 ? risc_addr : *srisc_addr;
3767                 risc_size = be32_to_cpu(dcode[3]);
3768
3769                 fragment = 0;
3770                 while (risc_size > 0 && rval == QLA_SUCCESS) {
3771                         dlen = (uint32_t)(ha->fw_transfer_size >> 2);
3772                         if (dlen > risc_size)
3773                                 dlen = risc_size;
3774
3775                         DEBUG7(printk("scsi(%ld): Loading risc segment@ risc "
3776                             "addr %x, number of dwords 0x%x, offset 0x%x.\n",
3777                             ha->host_no, risc_addr, dlen, faddr));
3778
3779                         qla24xx_read_flash_data(ha, dcode, faddr, dlen);
3780                         for (i = 0; i < dlen; i++)
3781                                 dcode[i] = swab32(dcode[i]);
3782
3783                         rval = qla2x00_load_ram(ha, ha->request_dma, risc_addr,
3784                             dlen);
3785                         if (rval) {
3786                                 DEBUG(printk("scsi(%ld):[ERROR] Failed to load "
3787                                     "segment %d of firmware\n", ha->host_no,
3788                                     fragment));
3789                                 qla_printk(KERN_WARNING, ha,
3790                                     "[ERROR] Failed to load segment %d of "
3791                                     "firmware\n", fragment);
3792                                 break;
3793                         }
3794
3795                         faddr += dlen;
3796                         risc_addr += dlen;
3797                         risc_size -= dlen;
3798                         fragment++;
3799                 }
3800
3801                 /* Next segment. */
3802                 segments--;
3803         }
3804
3805         return rval;
3806 }
3807
3808 #define QLA_FW_URL "ftp://ftp.qlogic.com/outgoing/linux/firmware/"
3809
3810 int
3811 qla2x00_load_risc(scsi_qla_host_t *ha, uint32_t *srisc_addr)
3812 {
3813         int     rval;
3814         int     i, fragment;
3815         uint16_t *wcode, *fwcode;
3816         uint32_t risc_addr, risc_size, fwclen, wlen, *seg;
3817         struct fw_blob *blob;
3818
3819         /* Load firmware blob. */
3820         blob = qla2x00_request_firmware(ha);
3821         if (!blob) {
3822                 qla_printk(KERN_ERR, ha, "Firmware image unavailable.\n");
3823                 qla_printk(KERN_ERR, ha, "Firmware images can be retrieved "
3824                     "from: " QLA_FW_URL ".\n");
3825                 return QLA_FUNCTION_FAILED;
3826         }
3827
3828         rval = QLA_SUCCESS;
3829
3830         wcode = (uint16_t *)ha->request_ring;
3831         *srisc_addr = 0;
3832         fwcode = (uint16_t *)blob->fw->data;
3833         fwclen = 0;
3834
3835         /* Validate firmware image by checking version. */
3836         if (blob->fw->size < 8 * sizeof(uint16_t)) {
3837                 qla_printk(KERN_WARNING, ha,
3838                     "Unable to verify integrity of firmware image (%Zd)!\n",
3839                     blob->fw->size);
3840                 goto fail_fw_integrity;
3841         }
3842         for (i = 0; i < 4; i++)
3843                 wcode[i] = be16_to_cpu(fwcode[i + 4]);
3844         if ((wcode[0] == 0xffff && wcode[1] == 0xffff && wcode[2] == 0xffff &&
3845             wcode[3] == 0xffff) || (wcode[0] == 0 && wcode[1] == 0 &&
3846                 wcode[2] == 0 && wcode[3] == 0)) {
3847                 qla_printk(KERN_WARNING, ha,
3848                     "Unable to verify integrity of firmware image!\n");
3849                 qla_printk(KERN_WARNING, ha,
3850                     "Firmware data: %04x %04x %04x %04x!\n", wcode[0],
3851                     wcode[1], wcode[2], wcode[3]);
3852                 goto fail_fw_integrity;
3853         }
3854
3855         seg = blob->segs;
3856         while (*seg && rval == QLA_SUCCESS) {
3857                 risc_addr = *seg;
3858                 *srisc_addr = *srisc_addr == 0 ? *seg : *srisc_addr;
3859                 risc_size = be16_to_cpu(fwcode[3]);
3860
3861                 /* Validate firmware image size. */
3862                 fwclen += risc_size * sizeof(uint16_t);
3863                 if (blob->fw->size < fwclen) {
3864                         qla_printk(KERN_WARNING, ha,
3865                             "Unable to verify integrity of firmware image "
3866                             "(%Zd)!\n", blob->fw->size);
3867                         goto fail_fw_integrity;
3868                 }
3869
3870                 fragment = 0;
3871                 while (risc_size > 0 && rval == QLA_SUCCESS) {
3872                         wlen = (uint16_t)(ha->fw_transfer_size >> 1);
3873                         if (wlen > risc_size)
3874                                 wlen = risc_size;
3875
3876                         DEBUG7(printk("scsi(%ld): Loading risc segment@ risc "
3877                             "addr %x, number of words 0x%x.\n", ha->host_no,
3878                             risc_addr, wlen));
3879
3880                         for (i = 0; i < wlen; i++)
3881                                 wcode[i] = swab16(fwcode[i]);
3882
3883                         rval = qla2x00_load_ram(ha, ha->request_dma, risc_addr,
3884                             wlen);
3885                         if (rval) {
3886                                 DEBUG(printk("scsi(%ld):[ERROR] Failed to load "
3887                                     "segment %d of firmware\n", ha->host_no,
3888                                     fragment));
3889                                 qla_printk(KERN_WARNING, ha,
3890                                     "[ERROR] Failed to load segment %d of "
3891                                     "firmware\n", fragment);
3892                                 break;
3893                         }
3894
3895                         fwcode += wlen;
3896                         risc_addr += wlen;
3897                         risc_size -= wlen;
3898                         fragment++;
3899                 }
3900
3901                 /* Next segment. */
3902                 seg++;
3903         }
3904         return rval;
3905
3906 fail_fw_integrity:
3907         return QLA_FUNCTION_FAILED;
3908 }
3909
3910 int
3911 qla24xx_load_risc(scsi_qla_host_t *ha, uint32_t *srisc_addr)
3912 {
3913         int     rval;
3914         int     segments, fragment;
3915         uint32_t *dcode, dlen;
3916         uint32_t risc_addr;
3917         uint32_t risc_size;
3918         uint32_t i;
3919         struct fw_blob *blob;
3920         uint32_t *fwcode, fwclen;
3921
3922         /* Load firmware blob. */
3923         blob = qla2x00_request_firmware(ha);
3924         if (!blob) {
3925                 qla_printk(KERN_ERR, ha, "Firmware image unavailable.\n");
3926                 qla_printk(KERN_ERR, ha, "Firmware images can be retrieved "
3927                     "from: " QLA_FW_URL ".\n");
3928
3929                 /* Try to load RISC code from flash. */
3930                 qla_printk(KERN_ERR, ha, "Attempting to load (potentially "
3931                     "outdated) firmware from flash.\n");
3932                 return qla24xx_load_risc_flash(ha, srisc_addr);
3933         }
3934
3935         rval = QLA_SUCCESS;
3936
3937         segments = FA_RISC_CODE_SEGMENTS;
3938         dcode = (uint32_t *)ha->request_ring;
3939         *srisc_addr = 0;
3940         fwcode = (uint32_t *)blob->fw->data;
3941         fwclen = 0;
3942
3943         /* Validate firmware image by checking version. */
3944         if (blob->fw->size < 8 * sizeof(uint32_t)) {
3945                 qla_printk(KERN_WARNING, ha,
3946                     "Unable to verify integrity of firmware image (%Zd)!\n",
3947                     blob->fw->size);
3948                 goto fail_fw_integrity;
3949         }
3950         for (i = 0; i < 4; i++)
3951                 dcode[i] = be32_to_cpu(fwcode[i + 4]);
3952         if ((dcode[0] == 0xffffffff && dcode[1] == 0xffffffff &&
3953             dcode[2] == 0xffffffff && dcode[3] == 0xffffffff) ||
3954             (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
3955                 dcode[3] == 0)) {
3956                 qla_printk(KERN_WARNING, ha,
3957                     "Unable to verify integrity of firmware image!\n");
3958                 qla_printk(KERN_WARNING, ha,
3959                     "Firmware data: %08x %08x %08x %08x!\n", dcode[0],
3960                     dcode[1], dcode[2], dcode[3]);
3961                 goto fail_fw_integrity;
3962         }
3963
3964         while (segments && rval == QLA_SUCCESS) {
3965                 risc_addr = be32_to_cpu(fwcode[2]);
3966                 *srisc_addr = *srisc_addr == 0 ? risc_addr : *srisc_addr;
3967                 risc_size = be32_to_cpu(fwcode[3]);
3968
3969                 /* Validate firmware image size. */
3970                 fwclen += risc_size * sizeof(uint32_t);
3971                 if (blob->fw->size < fwclen) {
3972                         qla_printk(KERN_WARNING, ha,
3973                             "Unable to verify integrity of firmware image "
3974                             "(%Zd)!\n", blob->fw->size);
3975
3976                         goto fail_fw_integrity;
3977                 }
3978
3979                 fragment = 0;
3980                 while (risc_size > 0 && rval == QLA_SUCCESS) {
3981                         dlen = (uint32_t)(ha->fw_transfer_size >> 2);
3982                         if (dlen > risc_size)
3983                                 dlen = risc_size;
3984
3985                         DEBUG7(printk("scsi(%ld): Loading risc segment@ risc "
3986                             "addr %x, number of dwords 0x%x.\n", ha->host_no,
3987                             risc_addr, dlen));
3988
3989                         for (i = 0; i < dlen; i++)
3990                                 dcode[i] = swab32(fwcode[i]);
3991
3992                         rval = qla2x00_load_ram(ha, ha->request_dma, risc_addr,
3993                             dlen);
3994                         if (rval) {
3995                                 DEBUG(printk("scsi(%ld):[ERROR] Failed to load "
3996                                     "segment %d of firmware\n", ha->host_no,
3997                                     fragment));
3998                                 qla_printk(KERN_WARNING, ha,
3999                                     "[ERROR] Failed to load segment %d of "
4000                                     "firmware\n", fragment);
4001                                 break;
4002                         }
4003
4004                         fwcode += dlen;
4005                         risc_addr += dlen;
4006                         risc_size -= dlen;
4007                         fragment++;
4008                 }
4009
4010                 /* Next segment. */
4011                 segments--;
4012         }
4013         return rval;
4014
4015 fail_fw_integrity:
4016         return QLA_FUNCTION_FAILED;
4017 }
4018
4019 void
4020 qla2x00_try_to_stop_firmware(scsi_qla_host_t *ha)
4021 {
4022         int ret, retries;
4023
4024         if (!IS_FWI2_CAPABLE(ha))
4025                 return;
4026         if (!ha->fw_major_version)
4027                 return;
4028
4029         ret = qla2x00_stop_firmware(ha);
4030         for (retries = 5; ret != QLA_SUCCESS && ret != QLA_FUNCTION_TIMEOUT &&
4031             retries ; retries--) {
4032                 qla2x00_reset_chip(ha);
4033                 if (qla2x00_chip_diag(ha) != QLA_SUCCESS)
4034                         continue;
4035                 if (qla2x00_setup_chip(ha) != QLA_SUCCESS)
4036                         continue;
4037                 qla_printk(KERN_INFO, ha,
4038                     "Attempting retry of stop-firmware command...\n");
4039                 ret = qla2x00_stop_firmware(ha);
4040         }
4041 }
4042
4043 int
4044 qla24xx_configure_vhba(scsi_qla_host_t *ha)
4045 {
4046         int rval = QLA_SUCCESS;
4047         uint16_t mb[MAILBOX_REGISTER_COUNT];
4048
4049         if (!ha->parent)
4050                 return -EINVAL;
4051
4052         rval = qla2x00_fw_ready(ha->parent);
4053         if (rval == QLA_SUCCESS) {
4054                 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
4055                 qla2x00_marker(ha->parent, 0, 0, MK_SYNC_ALL);
4056         }
4057
4058         ha->flags.management_server_logged_in = 0;
4059
4060         /* Login to SNS first */
4061         qla24xx_login_fabric(ha->parent, NPH_SNS, 0xff, 0xff, 0xfc,
4062             mb, BIT_1);
4063         if (mb[0] != MBS_COMMAND_COMPLETE) {
4064                 DEBUG15(qla_printk(KERN_INFO, ha,
4065                     "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x "
4066                     "mb[2]=%x mb[6]=%x mb[7]=%x\n", NPH_SNS,
4067                     mb[0], mb[1], mb[2], mb[6], mb[7]));
4068                 return (QLA_FUNCTION_FAILED);
4069         }
4070
4071         atomic_set(&ha->loop_down_timer, 0);
4072         atomic_set(&ha->loop_state, LOOP_UP);
4073         set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
4074         set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
4075         rval = qla2x00_loop_resync(ha->parent);
4076
4077         return rval;
4078 }
4079
4080 /* 84XX Support **************************************************************/
4081
4082 static LIST_HEAD(qla_cs84xx_list);
4083 static DEFINE_MUTEX(qla_cs84xx_mutex);
4084
4085 static struct qla_chip_state_84xx *
4086 qla84xx_get_chip(struct scsi_qla_host *ha)
4087 {
4088         struct qla_chip_state_84xx *cs84xx;
4089
4090         mutex_lock(&qla_cs84xx_mutex);
4091
4092         /* Find any shared 84xx chip. */
4093         list_for_each_entry(cs84xx, &qla_cs84xx_list, list) {
4094                 if (cs84xx->bus == ha->pdev->bus) {
4095                         kref_get(&cs84xx->kref);
4096                         goto done;
4097                 }
4098         }
4099
4100         cs84xx = kzalloc(sizeof(*cs84xx), GFP_KERNEL);
4101         if (!cs84xx)
4102                 goto done;
4103
4104         kref_init(&cs84xx->kref);
4105         spin_lock_init(&cs84xx->access_lock);
4106         mutex_init(&cs84xx->fw_update_mutex);
4107         cs84xx->bus = ha->pdev->bus;
4108
4109         list_add_tail(&cs84xx->list, &qla_cs84xx_list);
4110 done:
4111         mutex_unlock(&qla_cs84xx_mutex);
4112         return cs84xx;
4113 }
4114
4115 static void
4116 __qla84xx_chip_release(struct kref *kref)
4117 {
4118         struct qla_chip_state_84xx *cs84xx =
4119             container_of(kref, struct qla_chip_state_84xx, kref);
4120
4121         mutex_lock(&qla_cs84xx_mutex);
4122         list_del(&cs84xx->list);
4123         mutex_unlock(&qla_cs84xx_mutex);
4124         kfree(cs84xx);
4125 }
4126
4127 void
4128 qla84xx_put_chip(struct scsi_qla_host *ha)
4129 {
4130         if (ha->cs84xx)
4131                 kref_put(&ha->cs84xx->kref, __qla84xx_chip_release);
4132 }
4133
4134 static int
4135 qla84xx_init_chip(scsi_qla_host_t *ha)
4136 {
4137         int rval;
4138         uint16_t status[2];
4139
4140         mutex_lock(&ha->cs84xx->fw_update_mutex);
4141
4142         rval = qla84xx_verify_chip(ha, status);
4143
4144         mutex_unlock(&ha->cs84xx->fw_update_mutex);
4145
4146         return rval != QLA_SUCCESS || status[0] ? QLA_FUNCTION_FAILED:
4147             QLA_SUCCESS;
4148 }