drivers/scsi/qla2xxx/qla_init.c

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