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

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