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
1868         spin_lock_irq(fcport->ha->host->host_lock);
1869         rport = fcport->drport;
1870         fcport->drport = NULL;
1871         spin_unlock_irq(fcport->ha->host->host_lock);
1872         if (rport)
1873                 fc_remote_port_delete(rport);
1874 }
1875
1876 /**
1877  * qla2x00_alloc_fcport() - Allocate a generic fcport.
1878  * @ha: HA context
1879  * @flags: allocation flags
1880  *
1881  * Returns a pointer to the allocated fcport, or NULL, if none available.
1882  */
1883 static fc_port_t *
1884 qla2x00_alloc_fcport(scsi_qla_host_t *ha, gfp_t flags)
1885 {
1886         fc_port_t *fcport;
1887
1888         fcport = kzalloc(sizeof(fc_port_t), flags);
1889         if (!fcport)
1890                 return NULL;
1891
1892         /* Setup fcport template structure. */
1893         fcport->ha = ha;
1894         fcport->vp_idx = ha->vp_idx;
1895         fcport->port_type = FCT_UNKNOWN;
1896         fcport->loop_id = FC_NO_LOOP_ID;
1897         atomic_set(&fcport->state, FCS_UNCONFIGURED);
1898         fcport->flags = FCF_RLC_SUPPORT;
1899         fcport->supported_classes = FC_COS_UNSPECIFIED;
1900
1901         return fcport;
1902 }
1903
1904 /*
1905  * qla2x00_configure_loop
1906  *      Updates Fibre Channel Device Database with what is actually on loop.
1907  *
1908  * Input:
1909  *      ha                = adapter block pointer.
1910  *
1911  * Returns:
1912  *      0 = success.
1913  *      1 = error.
1914  *      2 = database was full and device was not configured.
1915  */
1916 static int
1917 qla2x00_configure_loop(scsi_qla_host_t *ha)
1918 {
1919         int  rval;
1920         unsigned long flags, save_flags;
1921
1922         rval = QLA_SUCCESS;
1923
1924         /* Get Initiator ID */
1925         if (test_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags)) {
1926                 rval = qla2x00_configure_hba(ha);
1927                 if (rval != QLA_SUCCESS) {
1928                         DEBUG(printk("scsi(%ld): Unable to configure HBA.\n",
1929                             ha->host_no));
1930                         return (rval);
1931                 }
1932         }
1933
1934         save_flags = flags = ha->dpc_flags;
1935         DEBUG(printk("scsi(%ld): Configure loop -- dpc flags =0x%lx\n",
1936             ha->host_no, flags));
1937
1938         /*
1939          * If we have both an RSCN and PORT UPDATE pending then handle them
1940          * both at the same time.
1941          */
1942         clear_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1943         clear_bit(RSCN_UPDATE, &ha->dpc_flags);
1944
1945         /* Determine what we need to do */
1946         if (ha->current_topology == ISP_CFG_FL &&
1947             (test_bit(LOCAL_LOOP_UPDATE, &flags))) {
1948
1949                 ha->flags.rscn_queue_overflow = 1;
1950                 set_bit(RSCN_UPDATE, &flags);
1951
1952         } else if (ha->current_topology == ISP_CFG_F &&
1953             (test_bit(LOCAL_LOOP_UPDATE, &flags))) {
1954
1955                 ha->flags.rscn_queue_overflow = 1;
1956                 set_bit(RSCN_UPDATE, &flags);
1957                 clear_bit(LOCAL_LOOP_UPDATE, &flags);
1958
1959         } else if (ha->current_topology == ISP_CFG_N) {
1960                 clear_bit(RSCN_UPDATE, &flags);
1961
1962         } else if (!ha->flags.online ||
1963             (test_bit(ABORT_ISP_ACTIVE, &flags))) {
1964
1965                 ha->flags.rscn_queue_overflow = 1;
1966                 set_bit(RSCN_UPDATE, &flags);
1967                 set_bit(LOCAL_LOOP_UPDATE, &flags);
1968         }
1969
1970         if (test_bit(LOCAL_LOOP_UPDATE, &flags)) {
1971                 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
1972                         rval = QLA_FUNCTION_FAILED;
1973                 } else {
1974                         rval = qla2x00_configure_local_loop(ha);
1975                 }
1976         }
1977
1978         if (rval == QLA_SUCCESS && test_bit(RSCN_UPDATE, &flags)) {
1979                 if (LOOP_TRANSITION(ha)) {
1980                         rval = QLA_FUNCTION_FAILED;
1981                 } else {
1982                         rval = qla2x00_configure_fabric(ha);
1983                 }
1984         }
1985
1986         if (rval == QLA_SUCCESS) {
1987                 if (atomic_read(&ha->loop_down_timer) ||
1988                     test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
1989                         rval = QLA_FUNCTION_FAILED;
1990                 } else {
1991                         atomic_set(&ha->loop_state, LOOP_READY);
1992
1993                         DEBUG(printk("scsi(%ld): LOOP READY\n", ha->host_no));
1994                 }
1995         }
1996
1997         if (rval) {
1998                 DEBUG2_3(printk("%s(%ld): *** FAILED ***\n",
1999                     __func__, ha->host_no));
2000         } else {
2001                 DEBUG3(printk("%s: exiting normally\n", __func__));
2002         }
2003
2004         /* Restore state if a resync event occured during processing */
2005         if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2006                 if (test_bit(LOCAL_LOOP_UPDATE, &save_flags))
2007                         set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
2008                 if (test_bit(RSCN_UPDATE, &save_flags))
2009                         set_bit(RSCN_UPDATE, &ha->dpc_flags);
2010         }
2011
2012         return (rval);
2013 }
2014
2015
2016
2017 /*
2018  * qla2x00_configure_local_loop
2019  *      Updates Fibre Channel Device Database with local loop devices.
2020  *
2021  * Input:
2022  *      ha = adapter block pointer.
2023  *
2024  * Returns:
2025  *      0 = success.
2026  */
2027 static int
2028 qla2x00_configure_local_loop(scsi_qla_host_t *ha)
2029 {
2030         int             rval, rval2;
2031         int             found_devs;
2032         int             found;
2033         fc_port_t       *fcport, *new_fcport;
2034
2035         uint16_t        index;
2036         uint16_t        entries;
2037         char            *id_iter;
2038         uint16_t        loop_id;
2039         uint8_t         domain, area, al_pa;
2040         scsi_qla_host_t *pha = to_qla_parent(ha);
2041
2042         found_devs = 0;
2043         new_fcport = NULL;
2044         entries = MAX_FIBRE_DEVICES;
2045
2046         DEBUG3(printk("scsi(%ld): Getting FCAL position map\n", ha->host_no));
2047         DEBUG3(qla2x00_get_fcal_position_map(ha, NULL));
2048
2049         /* Get list of logged in devices. */
2050         memset(ha->gid_list, 0, GID_LIST_SIZE);
2051         rval = qla2x00_get_id_list(ha, ha->gid_list, ha->gid_list_dma,
2052             &entries);
2053         if (rval != QLA_SUCCESS)
2054                 goto cleanup_allocation;
2055
2056         DEBUG3(printk("scsi(%ld): Entries in ID list (%d)\n",
2057             ha->host_no, entries));
2058         DEBUG3(qla2x00_dump_buffer((uint8_t *)ha->gid_list,
2059             entries * sizeof(struct gid_list_info)));
2060
2061         /* Allocate temporary fcport for any new fcports discovered. */
2062         new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
2063         if (new_fcport == NULL) {
2064                 rval = QLA_MEMORY_ALLOC_FAILED;
2065                 goto cleanup_allocation;
2066         }
2067         new_fcport->flags &= ~FCF_FABRIC_DEVICE;
2068
2069         /*
2070          * Mark local devices that were present with FCF_DEVICE_LOST for now.
2071          */
2072         list_for_each_entry(fcport, &pha->fcports, list) {
2073                 if (fcport->vp_idx != ha->vp_idx)
2074                         continue;
2075
2076                 if (atomic_read(&fcport->state) == FCS_ONLINE &&
2077                     fcport->port_type != FCT_BROADCAST &&
2078                     (fcport->flags & FCF_FABRIC_DEVICE) == 0) {
2079
2080                         DEBUG(printk("scsi(%ld): Marking port lost, "
2081                             "loop_id=0x%04x\n",
2082                             ha->host_no, fcport->loop_id));
2083
2084                         atomic_set(&fcport->state, FCS_DEVICE_LOST);
2085                         fcport->flags &= ~FCF_FARP_DONE;
2086                 }
2087         }
2088
2089         /* Add devices to port list. */
2090         id_iter = (char *)ha->gid_list;
2091         for (index = 0; index < entries; index++) {
2092                 domain = ((struct gid_list_info *)id_iter)->domain;
2093                 area = ((struct gid_list_info *)id_iter)->area;
2094                 al_pa = ((struct gid_list_info *)id_iter)->al_pa;
2095                 if (IS_QLA2100(ha) || IS_QLA2200(ha))
2096                         loop_id = (uint16_t)
2097                             ((struct gid_list_info *)id_iter)->loop_id_2100;
2098                 else
2099                         loop_id = le16_to_cpu(
2100                             ((struct gid_list_info *)id_iter)->loop_id);
2101                 id_iter += ha->gid_list_info_size;
2102
2103                 /* Bypass reserved domain fields. */
2104                 if ((domain & 0xf0) == 0xf0)
2105                         continue;
2106
2107                 /* Bypass if not same domain and area of adapter. */
2108                 if (area && domain &&
2109                     (area != ha->d_id.b.area || domain != ha->d_id.b.domain))
2110                         continue;
2111
2112                 /* Bypass invalid local loop ID. */
2113                 if (loop_id > LAST_LOCAL_LOOP_ID)
2114                         continue;
2115
2116                 /* Fill in member data. */
2117                 new_fcport->d_id.b.domain = domain;
2118                 new_fcport->d_id.b.area = area;
2119                 new_fcport->d_id.b.al_pa = al_pa;
2120                 new_fcport->loop_id = loop_id;
2121                 new_fcport->vp_idx = ha->vp_idx;
2122                 rval2 = qla2x00_get_port_database(ha, new_fcport, 0);
2123                 if (rval2 != QLA_SUCCESS) {
2124                         DEBUG2(printk("scsi(%ld): Failed to retrieve fcport "
2125                             "information -- get_port_database=%x, "
2126                             "loop_id=0x%04x\n",
2127                             ha->host_no, rval2, new_fcport->loop_id));
2128                         DEBUG2(printk("scsi(%ld): Scheduling resync...\n",
2129                             ha->host_no));
2130                         set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2131                         continue;
2132                 }
2133
2134                 /* Check for matching device in port list. */
2135                 found = 0;
2136                 fcport = NULL;
2137                 list_for_each_entry(fcport, &pha->fcports, list) {
2138                         if (fcport->vp_idx != ha->vp_idx)
2139                                 continue;
2140
2141                         if (memcmp(new_fcport->port_name, fcport->port_name,
2142                             WWN_SIZE))
2143                                 continue;
2144
2145                         fcport->flags &= ~(FCF_FABRIC_DEVICE |
2146                             FCF_PERSISTENT_BOUND);
2147                         fcport->loop_id = new_fcport->loop_id;
2148                         fcport->port_type = new_fcport->port_type;
2149                         fcport->d_id.b24 = new_fcport->d_id.b24;
2150                         memcpy(fcport->node_name, new_fcport->node_name,
2151                             WWN_SIZE);
2152
2153                         found++;
2154                         break;
2155                 }
2156
2157                 if (!found) {
2158                         /* New device, add to fcports list. */
2159                         new_fcport->flags &= ~FCF_PERSISTENT_BOUND;
2160                         if (ha->parent) {
2161                                 new_fcport->ha = ha;
2162                                 new_fcport->vp_idx = ha->vp_idx;
2163                                 list_add_tail(&new_fcport->vp_fcport,
2164                                     &ha->vp_fcports);
2165                         }
2166                         list_add_tail(&new_fcport->list, &pha->fcports);
2167
2168                         /* Allocate a new replacement fcport. */
2169                         fcport = new_fcport;
2170                         new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
2171                         if (new_fcport == NULL) {
2172                                 rval = QLA_MEMORY_ALLOC_FAILED;
2173                                 goto cleanup_allocation;
2174                         }
2175                         new_fcport->flags &= ~FCF_FABRIC_DEVICE;
2176                 }
2177
2178                 /* Base iIDMA settings on HBA port speed. */
2179                 fcport->fp_speed = ha->link_data_rate;
2180
2181                 qla2x00_update_fcport(ha, fcport);
2182
2183                 found_devs++;
2184         }
2185
2186 cleanup_allocation:
2187         kfree(new_fcport);
2188
2189         if (rval != QLA_SUCCESS) {
2190                 DEBUG2(printk("scsi(%ld): Configure local loop error exit: "
2191                     "rval=%x\n", ha->host_no, rval));
2192         }
2193
2194         if (found_devs) {
2195                 ha->device_flags |= DFLG_LOCAL_DEVICES;
2196                 ha->device_flags &= ~DFLG_RETRY_LOCAL_DEVICES;
2197         }
2198
2199         return (rval);
2200 }
2201
2202 static void
2203 qla2x00_iidma_fcport(scsi_qla_host_t *ha, fc_port_t *fcport)
2204 {
2205 #define LS_UNKNOWN      2
2206         static char *link_speeds[5] = { "1", "2", "?", "4", "8" };
2207         int rval;
2208         uint16_t mb[6];
2209
2210         if (!IS_IIDMA_CAPABLE(ha))
2211                 return;
2212
2213         if (fcport->fp_speed == PORT_SPEED_UNKNOWN ||
2214             fcport->fp_speed > ha->link_data_rate)
2215                 return;
2216
2217         rval = qla2x00_set_idma_speed(ha, fcport->loop_id, fcport->fp_speed,
2218             mb);
2219         if (rval != QLA_SUCCESS) {
2220                 DEBUG2(printk("scsi(%ld): Unable to adjust iIDMA "
2221                     "%02x%02x%02x%02x%02x%02x%02x%02x -- %04x %x %04x %04x.\n",
2222                     ha->host_no, fcport->port_name[0], fcport->port_name[1],
2223                     fcport->port_name[2], fcport->port_name[3],
2224                     fcport->port_name[4], fcport->port_name[5],
2225                     fcport->port_name[6], fcport->port_name[7], rval,
2226                     fcport->fp_speed, mb[0], mb[1]));
2227         } else {
2228                 DEBUG2(qla_printk(KERN_INFO, ha,
2229                     "iIDMA adjusted to %s GB/s on "
2230                     "%02x%02x%02x%02x%02x%02x%02x%02x.\n",
2231                     link_speeds[fcport->fp_speed], fcport->port_name[0],
2232                     fcport->port_name[1], fcport->port_name[2],
2233                     fcport->port_name[3], fcport->port_name[4],
2234                     fcport->port_name[5], fcport->port_name[6],
2235                     fcport->port_name[7]));
2236         }
2237 }
2238
2239 static void
2240 qla2x00_reg_remote_port(scsi_qla_host_t *ha, fc_port_t *fcport)
2241 {
2242         struct fc_rport_identifiers rport_ids;
2243         struct fc_rport *rport;
2244
2245         if (fcport->drport)
2246                 qla2x00_rport_del(fcport);
2247
2248         rport_ids.node_name = wwn_to_u64(fcport->node_name);
2249         rport_ids.port_name = wwn_to_u64(fcport->port_name);
2250         rport_ids.port_id = fcport->d_id.b.domain << 16 |
2251             fcport->d_id.b.area << 8 | fcport->d_id.b.al_pa;
2252         rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
2253         fcport->rport = rport = fc_remote_port_add(ha->host, 0, &rport_ids);
2254         if (!rport) {
2255                 qla_printk(KERN_WARNING, ha,
2256                     "Unable to allocate fc remote port!\n");
2257                 return;
2258         }
2259         spin_lock_irq(fcport->ha->host->host_lock);
2260         *((fc_port_t **)rport->dd_data) = fcport;
2261         spin_unlock_irq(fcport->ha->host->host_lock);
2262
2263         rport->supported_classes = fcport->supported_classes;
2264
2265         rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
2266         if (fcport->port_type == FCT_INITIATOR)
2267                 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
2268         if (fcport->port_type == FCT_TARGET)
2269                 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
2270         fc_remote_port_rolechg(rport, rport_ids.roles);
2271 }
2272
2273 /*
2274  * qla2x00_update_fcport
2275  *      Updates device on list.
2276  *
2277  * Input:
2278  *      ha = adapter block pointer.
2279  *      fcport = port structure pointer.
2280  *
2281  * Return:
2282  *      0  - Success
2283  *  BIT_0 - error
2284  *
2285  * Context:
2286  *      Kernel context.
2287  */
2288 void
2289 qla2x00_update_fcport(scsi_qla_host_t *ha, fc_port_t *fcport)
2290 {
2291         scsi_qla_host_t *pha = to_qla_parent(ha);
2292
2293         fcport->ha = ha;
2294         fcport->login_retry = 0;
2295         fcport->port_login_retry_count = pha->port_down_retry_count *
2296             PORT_RETRY_TIME;
2297         atomic_set(&fcport->port_down_timer, pha->port_down_retry_count *
2298             PORT_RETRY_TIME);
2299         fcport->flags &= ~FCF_LOGIN_NEEDED;
2300
2301         qla2x00_iidma_fcport(ha, fcport);
2302
2303         atomic_set(&fcport->state, FCS_ONLINE);
2304
2305         qla2x00_reg_remote_port(ha, fcport);
2306 }
2307
2308 /*
2309  * qla2x00_configure_fabric
2310  *      Setup SNS devices with loop ID's.
2311  *
2312  * Input:
2313  *      ha = adapter block pointer.
2314  *
2315  * Returns:
2316  *      0 = success.
2317  *      BIT_0 = error
2318  */
2319 static int
2320 qla2x00_configure_fabric(scsi_qla_host_t *ha)
2321 {
2322         int     rval, rval2;
2323         fc_port_t       *fcport, *fcptemp;
2324         uint16_t        next_loopid;
2325         uint16_t        mb[MAILBOX_REGISTER_COUNT];
2326         uint16_t        loop_id;
2327         LIST_HEAD(new_fcports);
2328         scsi_qla_host_t *pha = to_qla_parent(ha);
2329
2330         /* If FL port exists, then SNS is present */
2331         if (IS_FWI2_CAPABLE(ha))
2332                 loop_id = NPH_F_PORT;
2333         else
2334                 loop_id = SNS_FL_PORT;
2335         rval = qla2x00_get_port_name(ha, loop_id, ha->fabric_node_name, 1);
2336         if (rval != QLA_SUCCESS) {
2337                 DEBUG2(printk("scsi(%ld): MBC_GET_PORT_NAME Failed, No FL "
2338                     "Port\n", ha->host_no));
2339
2340                 ha->device_flags &= ~SWITCH_FOUND;
2341                 return (QLA_SUCCESS);
2342         }
2343         ha->device_flags |= SWITCH_FOUND;
2344
2345         /* Mark devices that need re-synchronization. */
2346         rval2 = qla2x00_device_resync(ha);
2347         if (rval2 == QLA_RSCNS_HANDLED) {
2348                 /* No point doing the scan, just continue. */
2349                 return (QLA_SUCCESS);
2350         }
2351         do {
2352                 /* FDMI support. */
2353                 if (ql2xfdmienable &&
2354                     test_and_clear_bit(REGISTER_FDMI_NEEDED, &ha->dpc_flags))
2355                         qla2x00_fdmi_register(ha);
2356
2357                 /* Ensure we are logged into the SNS. */
2358                 if (IS_FWI2_CAPABLE(ha))
2359                         loop_id = NPH_SNS;
2360                 else
2361                         loop_id = SIMPLE_NAME_SERVER;
2362                 ha->isp_ops->fabric_login(ha, loop_id, 0xff, 0xff,
2363                     0xfc, mb, BIT_1 | BIT_0);
2364                 if (mb[0] != MBS_COMMAND_COMPLETE) {
2365                         DEBUG2(qla_printk(KERN_INFO, ha,
2366                             "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x "
2367                             "mb[2]=%x mb[6]=%x mb[7]=%x\n", loop_id,
2368                             mb[0], mb[1], mb[2], mb[6], mb[7]));
2369                         return (QLA_SUCCESS);
2370                 }
2371
2372                 if (test_and_clear_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags)) {
2373                         if (qla2x00_rft_id(ha)) {
2374                                 /* EMPTY */
2375                                 DEBUG2(printk("scsi(%ld): Register FC-4 "
2376                                     "TYPE failed.\n", ha->host_no));
2377                         }
2378                         if (qla2x00_rff_id(ha)) {
2379                                 /* EMPTY */
2380                                 DEBUG2(printk("scsi(%ld): Register FC-4 "
2381                                     "Features failed.\n", ha->host_no));
2382                         }
2383                         if (qla2x00_rnn_id(ha)) {
2384                                 /* EMPTY */
2385                                 DEBUG2(printk("scsi(%ld): Register Node Name "
2386                                     "failed.\n", ha->host_no));
2387                         } else if (qla2x00_rsnn_nn(ha)) {
2388                                 /* EMPTY */
2389                                 DEBUG2(printk("scsi(%ld): Register Symbolic "
2390                                     "Node Name failed.\n", ha->host_no));
2391                         }
2392                 }
2393
2394                 rval = qla2x00_find_all_fabric_devs(ha, &new_fcports);
2395                 if (rval != QLA_SUCCESS)
2396                         break;
2397
2398                 /*
2399                  * Logout all previous fabric devices marked lost, except
2400                  * tape devices.
2401                  */
2402                 list_for_each_entry(fcport, &pha->fcports, list) {
2403                         if (fcport->vp_idx !=ha->vp_idx)
2404                                 continue;
2405
2406                         if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2407                                 break;
2408
2409                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0)
2410                                 continue;
2411
2412                         if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2413                                 qla2x00_mark_device_lost(ha, fcport,
2414                                     ql2xplogiabsentdevice, 0);
2415                                 if (fcport->loop_id != FC_NO_LOOP_ID &&
2416                                     (fcport->flags & FCF_TAPE_PRESENT) == 0 &&
2417                                     fcport->port_type != FCT_INITIATOR &&
2418                                     fcport->port_type != FCT_BROADCAST) {
2419                                         ha->isp_ops->fabric_logout(ha,
2420                                             fcport->loop_id,
2421                                             fcport->d_id.b.domain,
2422                                             fcport->d_id.b.area,
2423                                             fcport->d_id.b.al_pa);
2424                                         fcport->loop_id = FC_NO_LOOP_ID;
2425                                 }
2426                         }
2427                 }
2428
2429                 /* Starting free loop ID. */
2430                 next_loopid = pha->min_external_loopid;
2431
2432                 /*
2433                  * Scan through our port list and login entries that need to be
2434                  * logged in.
2435                  */
2436                 list_for_each_entry(fcport, &pha->fcports, list) {
2437                         if (fcport->vp_idx != ha->vp_idx)
2438                                 continue;
2439
2440                         if (atomic_read(&ha->loop_down_timer) ||
2441                             test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2442                                 break;
2443
2444                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 ||
2445                             (fcport->flags & FCF_LOGIN_NEEDED) == 0)
2446                                 continue;
2447
2448                         if (fcport->loop_id == FC_NO_LOOP_ID) {
2449                                 fcport->loop_id = next_loopid;
2450                                 rval = qla2x00_find_new_loop_id(
2451                                     to_qla_parent(ha), fcport);
2452                                 if (rval != QLA_SUCCESS) {
2453                                         /* Ran out of IDs to use */
2454                                         break;
2455                                 }
2456                         }
2457                         /* Login and update database */
2458                         qla2x00_fabric_dev_login(ha, fcport, &next_loopid);
2459                 }
2460
2461                 /* Exit if out of loop IDs. */
2462                 if (rval != QLA_SUCCESS) {
2463                         break;
2464                 }
2465
2466                 /*
2467                  * Login and add the new devices to our port list.
2468                  */
2469                 list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) {
2470                         if (atomic_read(&ha->loop_down_timer) ||
2471                             test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2472                                 break;
2473
2474                         /* Find a new loop ID to use. */
2475                         fcport->loop_id = next_loopid;
2476                         rval = qla2x00_find_new_loop_id(to_qla_parent(ha),
2477                             fcport);
2478                         if (rval != QLA_SUCCESS) {
2479                                 /* Ran out of IDs to use */
2480                                 break;
2481                         }
2482
2483                         /* Login and update database */
2484                         qla2x00_fabric_dev_login(ha, fcport, &next_loopid);
2485
2486                         if (ha->parent) {
2487                                 fcport->ha = ha;
2488                                 fcport->vp_idx = ha->vp_idx;
2489                                 list_add_tail(&fcport->vp_fcport,
2490                                     &ha->vp_fcports);
2491                                 list_move_tail(&fcport->list,
2492                                     &ha->parent->fcports);
2493                         } else
2494                                 list_move_tail(&fcport->list, &ha->fcports);
2495                 }
2496         } while (0);
2497
2498         /* Free all new device structures not processed. */
2499         list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) {
2500                 list_del(&fcport->list);
2501                 kfree(fcport);
2502         }
2503
2504         if (rval) {
2505                 DEBUG2(printk("scsi(%ld): Configure fabric error exit: "
2506                     "rval=%d\n", ha->host_no, rval));
2507         }
2508
2509         return (rval);
2510 }
2511
2512
2513 /*
2514  * qla2x00_find_all_fabric_devs
2515  *
2516  * Input:
2517  *      ha = adapter block pointer.
2518  *      dev = database device entry pointer.
2519  *
2520  * Returns:
2521  *      0 = success.
2522  *
2523  * Context:
2524  *      Kernel context.
2525  */
2526 static int
2527 qla2x00_find_all_fabric_devs(scsi_qla_host_t *ha, struct list_head *new_fcports)
2528 {
2529         int             rval;
2530         uint16_t        loop_id;
2531         fc_port_t       *fcport, *new_fcport, *fcptemp;
2532         int             found;
2533
2534         sw_info_t       *swl;
2535         int             swl_idx;
2536         int             first_dev, last_dev;
2537         port_id_t       wrap, nxt_d_id;
2538         int             vp_index;
2539         int             empty_vp_index;
2540         int             found_vp;
2541         scsi_qla_host_t *vha;
2542         scsi_qla_host_t *pha = to_qla_parent(ha);
2543
2544         rval = QLA_SUCCESS;
2545
2546         /* Try GID_PT to get device list, else GAN. */
2547         swl = kcalloc(MAX_FIBRE_DEVICES, sizeof(sw_info_t), GFP_ATOMIC);
2548         if (!swl) {
2549                 /*EMPTY*/
2550                 DEBUG2(printk("scsi(%ld): GID_PT allocations failed, fallback "
2551                     "on GA_NXT\n", ha->host_no));
2552         } else {
2553                 if (qla2x00_gid_pt(ha, swl) != QLA_SUCCESS) {
2554                         kfree(swl);
2555                         swl = NULL;
2556                 } else if (qla2x00_gpn_id(ha, swl) != QLA_SUCCESS) {
2557                         kfree(swl);
2558                         swl = NULL;
2559                 } else if (qla2x00_gnn_id(ha, swl) != QLA_SUCCESS) {
2560                         kfree(swl);
2561                         swl = NULL;
2562                 } else if (qla2x00_gfpn_id(ha, swl) == QLA_SUCCESS) {
2563                         qla2x00_gpsc(ha, swl);
2564                 }
2565         }
2566         swl_idx = 0;
2567
2568         /* Allocate temporary fcport for any new fcports discovered. */
2569         new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
2570         if (new_fcport == NULL) {
2571                 kfree(swl);
2572                 return (QLA_MEMORY_ALLOC_FAILED);
2573         }
2574         new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
2575         new_fcport->vp_idx = ha->vp_idx;
2576         /* Set start port ID scan at adapter ID. */
2577         first_dev = 1;
2578         last_dev = 0;
2579
2580         /* Starting free loop ID. */
2581         loop_id = pha->min_external_loopid;
2582         for (; loop_id <= ha->last_loop_id; loop_id++) {
2583                 if (qla2x00_is_reserved_id(ha, loop_id))
2584                         continue;
2585
2586                 if (atomic_read(&ha->loop_down_timer) || LOOP_TRANSITION(ha))
2587                         break;
2588
2589                 if (swl != NULL) {
2590                         if (last_dev) {
2591                                 wrap.b24 = new_fcport->d_id.b24;
2592                         } else {
2593                                 new_fcport->d_id.b24 = swl[swl_idx].d_id.b24;
2594                                 memcpy(new_fcport->node_name,
2595                                     swl[swl_idx].node_name, WWN_SIZE);
2596                                 memcpy(new_fcport->port_name,
2597                                     swl[swl_idx].port_name, WWN_SIZE);
2598                                 memcpy(new_fcport->fabric_port_name,
2599                                     swl[swl_idx].fabric_port_name, WWN_SIZE);
2600                                 new_fcport->fp_speed = swl[swl_idx].fp_speed;
2601
2602                                 if (swl[swl_idx].d_id.b.rsvd_1 != 0) {
2603                                         last_dev = 1;
2604                                 }
2605                                 swl_idx++;
2606                         }
2607                 } else {
2608                         /* Send GA_NXT to the switch */
2609                         rval = qla2x00_ga_nxt(ha, new_fcport);
2610                         if (rval != QLA_SUCCESS) {
2611                                 qla_printk(KERN_WARNING, ha,
2612                                     "SNS scan failed -- assuming zero-entry "
2613                                     "result...\n");
2614                                 list_for_each_entry_safe(fcport, fcptemp,
2615                                     new_fcports, list) {
2616                                         list_del(&fcport->list);
2617                                         kfree(fcport);
2618                                 }
2619                                 rval = QLA_SUCCESS;
2620                                 break;
2621                         }
2622                 }
2623
2624                 /* If wrap on switch device list, exit. */
2625                 if (first_dev) {
2626                         wrap.b24 = new_fcport->d_id.b24;
2627                         first_dev = 0;
2628                 } else if (new_fcport->d_id.b24 == wrap.b24) {
2629                         DEBUG2(printk("scsi(%ld): device wrap (%02x%02x%02x)\n",
2630                             ha->host_no, new_fcport->d_id.b.domain,
2631                             new_fcport->d_id.b.area, new_fcport->d_id.b.al_pa));
2632                         break;
2633                 }
2634
2635                 /* Bypass if same physical adapter. */
2636                 if (new_fcport->d_id.b24 == pha->d_id.b24)
2637                         continue;
2638
2639                 /* Bypass virtual ports of the same host. */
2640                 if (pha->num_vhosts) {
2641                         for_each_mapped_vp_idx(pha, vp_index) {
2642                                 empty_vp_index = 1;
2643                                 found_vp = 0;
2644                                 list_for_each_entry(vha, &pha->vp_list,
2645                                     vp_list) {
2646                                         if (vp_index == vha->vp_idx) {
2647                                                 empty_vp_index = 0;
2648                                                 found_vp = 1;
2649                                                 break;
2650                                         }
2651                                 }
2652
2653                                 if (empty_vp_index)
2654                                         continue;
2655
2656                                 if (found_vp &&
2657                                     new_fcport->d_id.b24 == vha->d_id.b24)
2658                                         break;
2659                         }
2660
2661                         if (vp_index <= pha->max_npiv_vports)
2662                                 continue;
2663                 }
2664
2665                 /* Bypass if same domain and area of adapter. */
2666                 if (((new_fcport->d_id.b24 & 0xffff00) ==
2667                     (ha->d_id.b24 & 0xffff00)) && ha->current_topology ==
2668                         ISP_CFG_FL)
2669                             continue;
2670
2671                 /* Bypass reserved domain fields. */
2672                 if ((new_fcport->d_id.b.domain & 0xf0) == 0xf0)
2673                         continue;
2674
2675                 /* Locate matching device in database. */
2676                 found = 0;
2677                 list_for_each_entry(fcport, &pha->fcports, list) {
2678                         if (new_fcport->vp_idx != fcport->vp_idx)
2679                                 continue;
2680                         if (memcmp(new_fcport->port_name, fcport->port_name,
2681                             WWN_SIZE))
2682                                 continue;
2683
2684                         found++;
2685
2686                         /* Update port state. */
2687                         memcpy(fcport->fabric_port_name,
2688                             new_fcport->fabric_port_name, WWN_SIZE);
2689                         fcport->fp_speed = new_fcport->fp_speed;
2690
2691                         /*
2692                          * If address the same and state FCS_ONLINE, nothing
2693                          * changed.
2694                          */
2695                         if (fcport->d_id.b24 == new_fcport->d_id.b24 &&
2696                             atomic_read(&fcport->state) == FCS_ONLINE) {
2697                                 break;
2698                         }
2699
2700                         /*
2701                          * If device was not a fabric device before.
2702                          */
2703                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) {
2704                                 fcport->d_id.b24 = new_fcport->d_id.b24;
2705                                 fcport->loop_id = FC_NO_LOOP_ID;
2706                                 fcport->flags |= (FCF_FABRIC_DEVICE |
2707                                     FCF_LOGIN_NEEDED);
2708                                 fcport->flags &= ~FCF_PERSISTENT_BOUND;
2709                                 break;
2710                         }
2711
2712                         /*
2713                          * Port ID changed or device was marked to be updated;
2714                          * Log it out if still logged in and mark it for
2715                          * relogin later.
2716                          */
2717                         fcport->d_id.b24 = new_fcport->d_id.b24;
2718                         fcport->flags |= FCF_LOGIN_NEEDED;
2719                         if (fcport->loop_id != FC_NO_LOOP_ID &&
2720                             (fcport->flags & FCF_TAPE_PRESENT) == 0 &&
2721                             fcport->port_type != FCT_INITIATOR &&
2722                             fcport->port_type != FCT_BROADCAST) {
2723                                 ha->isp_ops->fabric_logout(ha, fcport->loop_id,
2724                                     fcport->d_id.b.domain, fcport->d_id.b.area,
2725                                     fcport->d_id.b.al_pa);
2726                                 fcport->loop_id = FC_NO_LOOP_ID;
2727                         }
2728
2729                         break;
2730                 }
2731
2732                 if (found)
2733                         continue;
2734
2735                 /* If device was not in our fcports list, then add it. */
2736                 list_add_tail(&new_fcport->list, new_fcports);
2737
2738                 /* Allocate a new replacement fcport. */
2739                 nxt_d_id.b24 = new_fcport->d_id.b24;
2740                 new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
2741                 if (new_fcport == NULL) {
2742                         kfree(swl);
2743                         return (QLA_MEMORY_ALLOC_FAILED);
2744                 }
2745                 new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
2746                 new_fcport->d_id.b24 = nxt_d_id.b24;
2747                 new_fcport->vp_idx = ha->vp_idx;
2748         }
2749
2750         kfree(swl);
2751         kfree(new_fcport);
2752
2753         if (!list_empty(new_fcports))
2754                 ha->device_flags |= DFLG_FABRIC_DEVICES;
2755
2756         return (rval);
2757 }
2758
2759 /*
2760  * qla2x00_find_new_loop_id
2761  *      Scan through our port list and find a new usable loop ID.
2762  *
2763  * Input:
2764  *      ha:     adapter state pointer.
2765  *      dev:    port structure pointer.
2766  *
2767  * Returns:
2768  *      qla2x00 local function return status code.
2769  *
2770  * Context:
2771  *      Kernel context.
2772  */
2773 static int
2774 qla2x00_find_new_loop_id(scsi_qla_host_t *ha, fc_port_t *dev)
2775 {
2776         int     rval;
2777         int     found;
2778         fc_port_t *fcport;
2779         uint16_t first_loop_id;
2780         scsi_qla_host_t *pha = to_qla_parent(ha);
2781
2782         rval = QLA_SUCCESS;
2783
2784         /* Save starting loop ID. */
2785         first_loop_id = dev->loop_id;
2786
2787         for (;;) {
2788                 /* Skip loop ID if already used by adapter. */
2789                 if (dev->loop_id == ha->loop_id) {
2790                         dev->loop_id++;
2791                 }
2792
2793                 /* Skip reserved loop IDs. */
2794                 while (qla2x00_is_reserved_id(ha, dev->loop_id)) {
2795                         dev->loop_id++;
2796                 }
2797
2798                 /* Reset loop ID if passed the end. */
2799                 if (dev->loop_id > ha->last_loop_id) {
2800                         /* first loop ID. */
2801                         dev->loop_id = ha->min_external_loopid;
2802                 }
2803
2804                 /* Check for loop ID being already in use. */
2805                 found = 0;
2806                 fcport = NULL;
2807                 list_for_each_entry(fcport, &pha->fcports, list) {
2808                         if (fcport->loop_id == dev->loop_id && fcport != dev) {
2809                                 /* ID possibly in use */
2810                                 found++;
2811                                 break;
2812                         }
2813                 }
2814
2815                 /* If not in use then it is free to use. */
2816                 if (!found) {
2817                         break;
2818                 }
2819
2820                 /* ID in use. Try next value. */
2821                 dev->loop_id++;
2822
2823                 /* If wrap around. No free ID to use. */
2824                 if (dev->loop_id == first_loop_id) {
2825                         dev->loop_id = FC_NO_LOOP_ID;
2826                         rval = QLA_FUNCTION_FAILED;
2827                         break;
2828                 }
2829         }
2830
2831         return (rval);
2832 }
2833
2834 /*
2835  * qla2x00_device_resync
2836  *      Marks devices in the database that needs resynchronization.
2837  *
2838  * Input:
2839  *      ha = adapter block pointer.
2840  *
2841  * Context:
2842  *      Kernel context.
2843  */
2844 static int
2845 qla2x00_device_resync(scsi_qla_host_t *ha)
2846 {
2847         int     rval;
2848         uint32_t mask;
2849         fc_port_t *fcport;
2850         uint32_t rscn_entry;
2851         uint8_t rscn_out_iter;
2852         uint8_t format;
2853         port_id_t d_id;
2854         scsi_qla_host_t *pha = to_qla_parent(ha);
2855
2856         rval = QLA_RSCNS_HANDLED;
2857
2858         while (ha->rscn_out_ptr != ha->rscn_in_ptr ||
2859             ha->flags.rscn_queue_overflow) {
2860
2861                 rscn_entry = ha->rscn_queue[ha->rscn_out_ptr];
2862                 format = MSB(MSW(rscn_entry));
2863                 d_id.b.domain = LSB(MSW(rscn_entry));
2864                 d_id.b.area = MSB(LSW(rscn_entry));
2865                 d_id.b.al_pa = LSB(LSW(rscn_entry));
2866
2867                 DEBUG(printk("scsi(%ld): RSCN queue entry[%d] = "
2868                     "[%02x/%02x%02x%02x].\n",
2869                     ha->host_no, ha->rscn_out_ptr, format, d_id.b.domain,
2870                     d_id.b.area, d_id.b.al_pa));
2871
2872                 ha->rscn_out_ptr++;
2873                 if (ha->rscn_out_ptr == MAX_RSCN_COUNT)
2874                         ha->rscn_out_ptr = 0;
2875
2876                 /* Skip duplicate entries. */
2877                 for (rscn_out_iter = ha->rscn_out_ptr;
2878                     !ha->flags.rscn_queue_overflow &&
2879                     rscn_out_iter != ha->rscn_in_ptr;
2880                     rscn_out_iter = (rscn_out_iter ==
2881                         (MAX_RSCN_COUNT - 1)) ? 0: rscn_out_iter + 1) {
2882
2883                         if (rscn_entry != ha->rscn_queue[rscn_out_iter])
2884                                 break;
2885
2886                         DEBUG(printk("scsi(%ld): Skipping duplicate RSCN queue "
2887                             "entry found at [%d].\n", ha->host_no,
2888                             rscn_out_iter));
2889
2890                         ha->rscn_out_ptr = rscn_out_iter;
2891                 }
2892
2893                 /* Queue overflow, set switch default case. */
2894                 if (ha->flags.rscn_queue_overflow) {
2895                         DEBUG(printk("scsi(%ld): device_resync: rscn "
2896                             "overflow.\n", ha->host_no));
2897
2898                         format = 3;
2899                         ha->flags.rscn_queue_overflow = 0;
2900                 }
2901
2902                 switch (format) {
2903                 case 0:
2904                         mask = 0xffffff;
2905                         break;
2906                 case 1:
2907                         mask = 0xffff00;
2908                         break;
2909                 case 2:
2910                         mask = 0xff0000;
2911                         break;
2912                 default:
2913                         mask = 0x0;
2914                         d_id.b24 = 0;
2915                         ha->rscn_out_ptr = ha->rscn_in_ptr;
2916                         break;
2917                 }
2918
2919                 rval = QLA_SUCCESS;
2920
2921                 list_for_each_entry(fcport, &pha->fcports, list) {
2922                         if (fcport->vp_idx != ha->vp_idx)
2923                                 continue;
2924
2925                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 ||
2926                             (fcport->d_id.b24 & mask) != d_id.b24 ||
2927                             fcport->port_type == FCT_BROADCAST)
2928                                 continue;
2929
2930                         if (atomic_read(&fcport->state) == FCS_ONLINE) {
2931                                 if (format != 3 ||
2932                                     fcport->port_type != FCT_INITIATOR) {
2933                                         qla2x00_mark_device_lost(ha, fcport,
2934                                             0, 0);
2935                                 }
2936                         }
2937                         fcport->flags &= ~FCF_FARP_DONE;
2938                 }
2939         }
2940         return (rval);
2941 }
2942
2943 /*
2944  * qla2x00_fabric_dev_login
2945  *      Login fabric target device and update FC port database.
2946  *
2947  * Input:
2948  *      ha:             adapter state pointer.
2949  *      fcport:         port structure list pointer.
2950  *      next_loopid:    contains value of a new loop ID that can be used
2951  *                      by the next login attempt.
2952  *
2953  * Returns:
2954  *      qla2x00 local function return status code.
2955  *
2956  * Context:
2957  *      Kernel context.
2958  */
2959 static int
2960 qla2x00_fabric_dev_login(scsi_qla_host_t *ha, fc_port_t *fcport,
2961     uint16_t *next_loopid)
2962 {
2963         int     rval;
2964         int     retry;
2965         uint8_t opts;
2966
2967         rval = QLA_SUCCESS;
2968         retry = 0;
2969
2970         rval = qla2x00_fabric_login(ha, fcport, next_loopid);
2971         if (rval == QLA_SUCCESS) {
2972                 /* Send an ADISC to tape devices.*/
2973                 opts = 0;
2974                 if (fcport->flags & FCF_TAPE_PRESENT)
2975                         opts |= BIT_1;
2976                 rval = qla2x00_get_port_database(ha, fcport, opts);
2977                 if (rval != QLA_SUCCESS) {
2978                         ha->isp_ops->fabric_logout(ha, fcport->loop_id,
2979                             fcport->d_id.b.domain, fcport->d_id.b.area,
2980                             fcport->d_id.b.al_pa);
2981                         qla2x00_mark_device_lost(ha, fcport, 1, 0);
2982                 } else {
2983                         qla2x00_update_fcport(ha, fcport);
2984                 }
2985         }
2986
2987         return (rval);
2988 }
2989
2990 /*
2991  * qla2x00_fabric_login
2992  *      Issue fabric login command.
2993  *
2994  * Input:
2995  *      ha = adapter block pointer.
2996  *      device = pointer to FC device type structure.
2997  *
2998  * Returns:
2999  *      0 - Login successfully
3000  *      1 - Login failed
3001  *      2 - Initiator device
3002  *      3 - Fatal error
3003  */
3004 int
3005 qla2x00_fabric_login(scsi_qla_host_t *ha, fc_port_t *fcport,
3006     uint16_t *next_loopid)
3007 {
3008         int     rval;
3009         int     retry;
3010         uint16_t tmp_loopid;
3011         uint16_t mb[MAILBOX_REGISTER_COUNT];
3012
3013         retry = 0;
3014         tmp_loopid = 0;
3015
3016         for (;;) {
3017                 DEBUG(printk("scsi(%ld): Trying Fabric Login w/loop id 0x%04x "
3018                     "for port %02x%02x%02x.\n",
3019                     ha->host_no, fcport->loop_id, fcport->d_id.b.domain,
3020                     fcport->d_id.b.area, fcport->d_id.b.al_pa));
3021
3022                 /* Login fcport on switch. */
3023                 ha->isp_ops->fabric_login(ha, fcport->loop_id,
3024                     fcport->d_id.b.domain, fcport->d_id.b.area,
3025                     fcport->d_id.b.al_pa, mb, BIT_0);
3026                 if (mb[0] == MBS_PORT_ID_USED) {
3027                         /*
3028                          * Device has another loop ID.  The firmware team
3029                          * recommends the driver perform an implicit login with
3030                          * the specified ID again. The ID we just used is save
3031                          * here so we return with an ID that can be tried by
3032                          * the next login.
3033                          */
3034                         retry++;
3035                         tmp_loopid = fcport->loop_id;
3036                         fcport->loop_id = mb[1];
3037
3038                         DEBUG(printk("Fabric Login: port in use - next "
3039                             "loop id=0x%04x, port Id=%02x%02x%02x.\n",
3040                             fcport->loop_id, fcport->d_id.b.domain,
3041                             fcport->d_id.b.area, fcport->d_id.b.al_pa));
3042
3043                 } else if (mb[0] == MBS_COMMAND_COMPLETE) {
3044                         /*
3045                          * Login succeeded.
3046                          */
3047                         if (retry) {
3048                                 /* A retry occurred before. */
3049                                 *next_loopid = tmp_loopid;
3050                         } else {
3051                                 /*
3052                                  * No retry occurred before. Just increment the
3053                                  * ID value for next login.
3054                                  */
3055                                 *next_loopid = (fcport->loop_id + 1);
3056                         }
3057
3058                         if (mb[1] & BIT_0) {
3059                                 fcport->port_type = FCT_INITIATOR;
3060                         } else {
3061                                 fcport->port_type = FCT_TARGET;
3062                                 if (mb[1] & BIT_1) {
3063                                         fcport->flags |= FCF_TAPE_PRESENT;
3064                                 }
3065                         }
3066
3067                         if (mb[10] & BIT_0)
3068                                 fcport->supported_classes |= FC_COS_CLASS2;
3069                         if (mb[10] & BIT_1)
3070                                 fcport->supported_classes |= FC_COS_CLASS3;
3071
3072                         rval = QLA_SUCCESS;
3073                         break;
3074                 } else if (mb[0] == MBS_LOOP_ID_USED) {
3075                         /*
3076                          * Loop ID already used, try next loop ID.
3077                          */
3078                         fcport->loop_id++;
3079                         rval = qla2x00_find_new_loop_id(ha, fcport);
3080                         if (rval != QLA_SUCCESS) {
3081                                 /* Ran out of loop IDs to use */
3082                                 break;
3083                         }
3084                 } else if (mb[0] == MBS_COMMAND_ERROR) {
3085                         /*
3086                          * Firmware possibly timed out during login. If NO
3087                          * retries are left to do then the device is declared
3088                          * dead.
3089                          */
3090                         *next_loopid = fcport->loop_id;
3091                         ha->isp_ops->fabric_logout(ha, fcport->loop_id,
3092                             fcport->d_id.b.domain, fcport->d_id.b.area,
3093                             fcport->d_id.b.al_pa);
3094                         qla2x00_mark_device_lost(ha, fcport, 1, 0);
3095
3096                         rval = 1;
3097                         break;
3098                 } else {
3099                         /*
3100                          * unrecoverable / not handled error
3101                          */
3102                         DEBUG2(printk("%s(%ld): failed=%x port_id=%02x%02x%02x "
3103                             "loop_id=%x jiffies=%lx.\n",
3104                             __func__, ha->host_no, mb[0],
3105                             fcport->d_id.b.domain, fcport->d_id.b.area,
3106                             fcport->d_id.b.al_pa, fcport->loop_id, jiffies));
3107
3108                         *next_loopid = fcport->loop_id;
3109                         ha->isp_ops->fabric_logout(ha, fcport->loop_id,
3110                             fcport->d_id.b.domain, fcport->d_id.b.area,
3111                             fcport->d_id.b.al_pa);
3112                         fcport->loop_id = FC_NO_LOOP_ID;
3113                         fcport->login_retry = 0;
3114
3115                         rval = 3;
3116                         break;
3117                 }
3118         }
3119
3120         return (rval);
3121 }
3122
3123 /*
3124  * qla2x00_local_device_login
3125  *      Issue local device login command.
3126  *
3127  * Input:
3128  *      ha = adapter block pointer.
3129  *      loop_id = loop id of device to login to.
3130  *
3131  * Returns (Where's the #define!!!!):
3132  *      0 - Login successfully
3133  *      1 - Login failed
3134  *      3 - Fatal error
3135  */
3136 int
3137 qla2x00_local_device_login(scsi_qla_host_t *ha, fc_port_t *fcport)
3138 {
3139         int             rval;
3140         uint16_t        mb[MAILBOX_REGISTER_COUNT];
3141
3142         memset(mb, 0, sizeof(mb));
3143         rval = qla2x00_login_local_device(ha, fcport, mb, BIT_0);
3144         if (rval == QLA_SUCCESS) {
3145                 /* Interrogate mailbox registers for any errors */
3146                 if (mb[0] == MBS_COMMAND_ERROR)
3147                         rval = 1;
3148                 else if (mb[0] == MBS_COMMAND_PARAMETER_ERROR)
3149                         /* device not in PCB table */
3150                         rval = 3;
3151         }
3152
3153         return (rval);
3154 }
3155
3156 /*
3157  *  qla2x00_loop_resync
3158  *      Resync with fibre channel devices.
3159  *
3160  * Input:
3161  *      ha = adapter block pointer.
3162  *
3163  * Returns:
3164  *      0 = success
3165  */
3166 int
3167 qla2x00_loop_resync(scsi_qla_host_t *ha)
3168 {
3169         int   rval;
3170         uint32_t wait_time;
3171
3172         rval = QLA_SUCCESS;
3173
3174         atomic_set(&ha->loop_state, LOOP_UPDATE);
3175         clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
3176         if (ha->flags.online) {
3177                 if (!(rval = qla2x00_fw_ready(ha))) {
3178                         /* Wait at most MAX_TARGET RSCNs for a stable link. */
3179                         wait_time = 256;
3180                         do {
3181                                 atomic_set(&ha->loop_state, LOOP_UPDATE);
3182
3183                                 /* Issue a marker after FW becomes ready. */
3184                                 qla2x00_marker(ha, 0, 0, MK_SYNC_ALL);
3185                                 ha->marker_needed = 0;
3186
3187                                 /* Remap devices on Loop. */
3188                                 clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
3189
3190                                 qla2x00_configure_loop(ha);
3191                                 wait_time--;
3192                         } while (!atomic_read(&ha->loop_down_timer) &&
3193                                 !(test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) &&
3194                                 wait_time &&
3195                                 (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)));
3196                 }
3197         }
3198
3199         if (test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
3200                 return (QLA_FUNCTION_FAILED);
3201         }
3202
3203         if (rval) {
3204                 DEBUG2_3(printk("%s(): **** FAILED ****\n", __func__));
3205         }
3206
3207         return (rval);
3208 }
3209
3210 void
3211 qla2x00_update_fcports(scsi_qla_host_t *ha)
3212 {
3213         fc_port_t *fcport;
3214
3215         /* Go with deferred removal of rport references. */
3216         list_for_each_entry(fcport, &ha->fcports, list)
3217                 if (fcport->drport)
3218                         qla2x00_rport_del(fcport);
3219 }
3220
3221 /*
3222 *  qla2x00_abort_isp
3223 *      Resets ISP and aborts all outstanding commands.
3224 *
3225 * Input:
3226 *      ha           = adapter block pointer.
3227 *
3228 * Returns:
3229 *      0 = success
3230 */
3231 int
3232 qla2x00_abort_isp(scsi_qla_host_t *ha)
3233 {
3234         int rval;
3235         uint8_t        status = 0;
3236
3237         if (ha->flags.online) {
3238                 ha->flags.online = 0;
3239                 clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
3240
3241                 qla_printk(KERN_INFO, ha,
3242                     "Performing ISP error recovery - ha= %p.\n", ha);
3243                 ha->isp_ops->reset_chip(ha);
3244
3245                 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
3246                 if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
3247                         atomic_set(&ha->loop_state, LOOP_DOWN);
3248                         qla2x00_mark_all_devices_lost(ha, 0);
3249                 } else {
3250                         if (!atomic_read(&ha->loop_down_timer))
3251                                 atomic_set(&ha->loop_down_timer,
3252                                     LOOP_DOWN_TIME);
3253                 }
3254
3255                 /* Requeue all commands in outstanding command list. */
3256                 qla2x00_abort_all_cmds(ha, DID_RESET << 16);
3257
3258                 ha->isp_ops->get_flash_version(ha, ha->request_ring);
3259
3260                 ha->isp_ops->nvram_config(ha);
3261
3262                 if (!qla2x00_restart_isp(ha)) {
3263                         clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
3264
3265                         if (!atomic_read(&ha->loop_down_timer)) {
3266                                 /*
3267                                  * Issue marker command only when we are going
3268                                  * to start the I/O .
3269                                  */
3270                                 ha->marker_needed = 1;
3271                         }
3272
3273                         ha->flags.online = 1;
3274
3275                         ha->isp_ops->enable_intrs(ha);
3276
3277                         ha->isp_abort_cnt = 0;
3278                         clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
3279
3280                         if (ha->eft) {
3281                                 memset(ha->eft, 0, EFT_SIZE);
3282                                 rval = qla2x00_enable_eft_trace(ha,
3283                                     ha->eft_dma, EFT_NUM_BUFFERS);
3284                                 if (rval) {
3285                                         qla_printk(KERN_WARNING, ha,
3286                                             "Unable to reinitialize EFT "
3287                                             "(%d).\n", rval);
3288                                 }
3289                         }
3290
3291                         if (ha->fce) {
3292                                 ha->flags.fce_enabled = 1;
3293                                 memset(ha->fce, 0,
3294                                     fce_calc_size(ha->fce_bufs));
3295                                 rval = qla2x00_enable_fce_trace(ha,
3296                                     ha->fce_dma, ha->fce_bufs, ha->fce_mb,
3297                                     &ha->fce_bufs);
3298                                 if (rval) {
3299                                         qla_printk(KERN_WARNING, ha,
3300                                             "Unable to reinitialize FCE "
3301                                             "(%d).\n", rval);
3302                                         ha->flags.fce_enabled = 0;
3303                                 }
3304                         }
3305                 } else {        /* failed the ISP abort */
3306                         ha->flags.online = 1;
3307                         if (test_bit(ISP_ABORT_RETRY, &ha->dpc_flags)) {
3308                                 if (ha->isp_abort_cnt == 0) {
3309                                         qla_printk(KERN_WARNING, ha,
3310                                             "ISP error recovery failed - "
3311                                             "board disabled\n");
3312                                         /*
3313                                          * The next call disables the board
3314                                          * completely.
3315                                          */
3316                                         ha->isp_ops->reset_adapter(ha);
3317                                         ha->flags.online = 0;
3318                                         clear_bit(ISP_ABORT_RETRY,
3319                                             &ha->dpc_flags);
3320                                         status = 0;
3321                                 } else { /* schedule another ISP abort */
3322                                         ha->isp_abort_cnt--;
3323                                         DEBUG(printk("qla%ld: ISP abort - "
3324                                             "retry remaining %d\n",
3325                                             ha->host_no, ha->isp_abort_cnt));
3326                                         status = 1;
3327                                 }
3328                         } else {
3329                                 ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT;
3330                                 DEBUG(printk("qla2x00(%ld): ISP error recovery "
3331                                     "- retrying (%d) more times\n",
3332                                     ha->host_no, ha->isp_abort_cnt));
3333                                 set_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
3334                                 status = 1;
3335                         }
3336                 }
3337
3338         }
3339
3340         if (status) {
3341                 qla_printk(KERN_INFO, ha,
3342                         "qla2x00_abort_isp: **** FAILED ****\n");
3343         } else {
3344                 DEBUG(printk(KERN_INFO
3345                                 "qla2x00_abort_isp(%ld): exiting.\n",
3346                                 ha->host_no));
3347         }
3348
3349         return(status);
3350 }
3351
3352 /*
3353 *  qla2x00_restart_isp
3354 *      restarts the ISP after a reset
3355 *
3356 * Input:
3357 *      ha = adapter block pointer.
3358 *
3359 * Returns:
3360 *      0 = success
3361 */
3362 static int
3363 qla2x00_restart_isp(scsi_qla_host_t *ha)
3364 {
3365         uint8_t         status = 0;
3366         uint32_t wait_time;
3367
3368         /* If firmware needs to be loaded */
3369         if (qla2x00_isp_firmware(ha)) {
3370                 ha->flags.online = 0;
3371                 if (!(status = ha->isp_ops->chip_diag(ha)))
3372                         status = qla2x00_setup_chip(ha);
3373         }
3374
3375         if (!status && !(status = qla2x00_init_rings(ha))) {
3376                 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
3377                 if (!(status = qla2x00_fw_ready(ha))) {
3378                         DEBUG(printk("%s(): Start configure loop, "
3379                             "status = %d\n", __func__, status));
3380
3381                         /* Issue a marker after FW becomes ready. */
3382                         qla2x00_marker(ha, 0, 0, MK_SYNC_ALL);
3383
3384                         ha->flags.online = 1;
3385                         /* Wait at most MAX_TARGET RSCNs for a stable link. */
3386                         wait_time = 256;
3387                         do {
3388                                 clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
3389                                 qla2x00_configure_loop(ha);
3390                                 wait_time--;
3391                         } while (!atomic_read(&ha->loop_down_timer) &&
3392                                 !(test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) &&
3393                                 wait_time &&
3394                                 (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)));
3395                 }
3396
3397                 /* if no cable then assume it's good */
3398                 if ((ha->device_flags & DFLG_NO_CABLE))
3399                         status = 0;
3400
3401                 DEBUG(printk("%s(): Configure loop done, status = 0x%x\n",
3402                                 __func__,
3403                                 status));
3404         }
3405         return (status);
3406 }
3407
3408 /*
3409 * qla2x00_reset_adapter
3410 *      Reset adapter.
3411 *
3412 * Input:
3413 *      ha = adapter block pointer.
3414 */
3415 void
3416 qla2x00_reset_adapter(scsi_qla_host_t *ha)
3417 {
3418         unsigned long flags = 0;
3419         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3420
3421         ha->flags.online = 0;
3422         ha->isp_ops->disable_intrs(ha);
3423
3424         spin_lock_irqsave(&ha->hardware_lock, flags);
3425         WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
3426         RD_REG_WORD(&reg->hccr);                        /* PCI Posting. */
3427         WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
3428         RD_REG_WORD(&reg->hccr);                        /* PCI Posting. */
3429         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3430 }
3431
3432 void
3433 qla24xx_reset_adapter(scsi_qla_host_t *ha)
3434 {
3435         unsigned long flags = 0;
3436         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
3437
3438         ha->flags.online = 0;
3439         ha->isp_ops->disable_intrs(ha);
3440
3441         spin_lock_irqsave(&ha->hardware_lock, flags);
3442         WRT_REG_DWORD(&reg->hccr, HCCRX_SET_RISC_RESET);
3443         RD_REG_DWORD(&reg->hccr);
3444         WRT_REG_DWORD(&reg->hccr, HCCRX_REL_RISC_PAUSE);
3445         RD_REG_DWORD(&reg->hccr);
3446         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3447 }
3448
3449 /* On sparc systems, obtain port and node WWN from firmware
3450  * properties.
3451  */
3452 static void qla24xx_nvram_wwn_from_ofw(scsi_qla_host_t *ha, struct nvram_24xx *nv)
3453 {
3454 #ifdef CONFIG_SPARC
3455         struct pci_dev *pdev = ha->pdev;
3456         struct device_node *dp = pci_device_to_OF_node(pdev);
3457         const u8 *val;
3458         int len;
3459
3460         val = of_get_property(dp, "port-wwn", &len);
3461         if (val && len >= WWN_SIZE)
3462                 memcpy(nv->port_name, val, WWN_SIZE);
3463
3464         val = of_get_property(dp, "node-wwn", &len);
3465         if (val && len >= WWN_SIZE)
3466                 memcpy(nv->node_name, val, WWN_SIZE);
3467 #endif
3468 }
3469
3470 int
3471 qla24xx_nvram_config(scsi_qla_host_t *ha)
3472 {
3473         int   rval;
3474         struct init_cb_24xx *icb;
3475         struct nvram_24xx *nv;
3476         uint32_t *dptr;
3477         uint8_t  *dptr1, *dptr2;
3478         uint32_t chksum;
3479         uint16_t cnt;
3480
3481         rval = QLA_SUCCESS;
3482         icb = (struct init_cb_24xx *)ha->init_cb;
3483         nv = ha->nvram;
3484
3485         /* Determine NVRAM starting address. */
3486         ha->nvram_size = sizeof(struct nvram_24xx);
3487         ha->nvram_base = FA_NVRAM_FUNC0_ADDR;
3488         ha->vpd_size = FA_NVRAM_VPD_SIZE;
3489         ha->vpd_base = FA_NVRAM_VPD0_ADDR;
3490         if (PCI_FUNC(ha->pdev->devfn)) {
3491                 ha->nvram_base = FA_NVRAM_FUNC1_ADDR;
3492                 ha->vpd_base = FA_NVRAM_VPD1_ADDR;
3493         }
3494
3495         /* Get VPD data into cache */
3496         ha->vpd = ha->nvram + VPD_OFFSET;
3497         ha->isp_ops->read_nvram(ha, (uint8_t *)ha->vpd,
3498             ha->nvram_base - FA_NVRAM_FUNC0_ADDR, FA_NVRAM_VPD_SIZE * 4);
3499
3500         /* Get NVRAM data into cache and calculate checksum. */
3501         dptr = (uint32_t *)nv;
3502         ha->isp_ops->read_nvram(ha, (uint8_t *)dptr, ha->nvram_base,
3503             ha->nvram_size);
3504         for (cnt = 0, chksum = 0; cnt < ha->nvram_size >> 2; cnt++)
3505                 chksum += le32_to_cpu(*dptr++);
3506
3507         DEBUG5(printk("scsi(%ld): Contents of NVRAM\n", ha->host_no));
3508         DEBUG5(qla2x00_dump_buffer((uint8_t *)nv, ha->nvram_size));
3509
3510         /* Bad NVRAM data, set defaults parameters. */
3511         if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' || nv->id[2] != 'P'
3512             || nv->id[3] != ' ' ||
3513             nv->nvram_version < __constant_cpu_to_le16(ICB_VERSION)) {
3514                 /* Reset NVRAM data. */
3515                 qla_printk(KERN_WARNING, ha, "Inconsistent NVRAM detected: "
3516                     "checksum=0x%x id=%c version=0x%x.\n", chksum, nv->id[0],
3517                     le16_to_cpu(nv->nvram_version));
3518                 qla_printk(KERN_WARNING, ha, "Falling back to functioning (yet "
3519                     "invalid -- WWPN) defaults.\n");
3520
3521                 /*
3522                  * Set default initialization control block.
3523                  */
3524                 memset(nv, 0, ha->nvram_size);
3525                 nv->nvram_version = __constant_cpu_to_le16(ICB_VERSION);
3526                 nv->version = __constant_cpu_to_le16(ICB_VERSION);
3527                 nv->frame_payload_size = __constant_cpu_to_le16(2048);
3528                 nv->execution_throttle = __constant_cpu_to_le16(0xFFFF);
3529                 nv->exchange_count = __constant_cpu_to_le16(0);
3530                 nv->hard_address = __constant_cpu_to_le16(124);
3531                 nv->port_name[0] = 0x21;
3532                 nv->port_name[1] = 0x00 + PCI_FUNC(ha->pdev->devfn);
3533                 nv->port_name[2] = 0x00;
3534                 nv->port_name[3] = 0xe0;
3535                 nv->port_name[4] = 0x8b;
3536                 nv->port_name[5] = 0x1c;
3537                 nv->port_name[6] = 0x55;
3538                 nv->port_name[7] = 0x86;
3539                 nv->node_name[0] = 0x20;
3540                 nv->node_name[1] = 0x00;
3541                 nv->node_name[2] = 0x00;
3542                 nv->node_name[3] = 0xe0;
3543                 nv->node_name[4] = 0x8b;
3544                 nv->node_name[5] = 0x1c;
3545                 nv->node_name[6] = 0x55;
3546                 nv->node_name[7] = 0x86;
3547                 qla24xx_nvram_wwn_from_ofw(ha, nv);
3548                 nv->login_retry_count = __constant_cpu_to_le16(8);
3549                 nv->interrupt_delay_timer = __constant_cpu_to_le16(0);
3550                 nv->login_timeout = __constant_cpu_to_le16(0);
3551                 nv->firmware_options_1 =
3552                     __constant_cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1);
3553                 nv->firmware_options_2 = __constant_cpu_to_le32(2 << 4);
3554                 nv->firmware_options_2 |= __constant_cpu_to_le32(BIT_12);
3555                 nv->firmware_options_3 = __constant_cpu_to_le32(2 << 13);
3556                 nv->host_p = __constant_cpu_to_le32(BIT_11|BIT_10);
3557                 nv->efi_parameters = __constant_cpu_to_le32(0);
3558                 nv->reset_delay = 5;
3559                 nv->max_luns_per_target = __constant_cpu_to_le16(128);
3560                 nv->port_down_retry_count = __constant_cpu_to_le16(30);
3561                 nv->link_down_timeout = __constant_cpu_to_le16(30);
3562
3563                 rval = 1;
3564         }
3565
3566         /* Reset Initialization control block */
3567         memset(icb, 0, sizeof(struct init_cb_24xx));
3568
3569         /* Copy 1st segment. */
3570         dptr1 = (uint8_t *)icb;
3571         dptr2 = (uint8_t *)&nv->version;
3572         cnt = (uint8_t *)&icb->response_q_inpointer - (uint8_t *)&icb->version;
3573         while (cnt--)
3574                 *dptr1++ = *dptr2++;
3575
3576         icb->login_retry_count = nv->login_retry_count;
3577         icb->link_down_on_nos = nv->link_down_on_nos;
3578
3579         /* Copy 2nd segment. */
3580         dptr1 = (uint8_t *)&icb->interrupt_delay_timer;
3581         dptr2 = (uint8_t *)&nv->interrupt_delay_timer;
3582         cnt = (uint8_t *)&icb->reserved_3 -
3583             (uint8_t *)&icb->interrupt_delay_timer;
3584         while (cnt--)
3585                 *dptr1++ = *dptr2++;
3586
3587         /*
3588          * Setup driver NVRAM options.
3589          */
3590         qla2x00_set_model_info(ha, nv->model_name, sizeof(nv->model_name),
3591             "QLA2462");
3592
3593         /* Use alternate WWN? */
3594         if (nv->host_p & __constant_cpu_to_le32(BIT_15)) {
3595                 memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
3596                 memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
3597         }
3598
3599         /* Prepare nodename */
3600         if ((icb->firmware_options_1 & __constant_cpu_to_le32(BIT_14)) == 0) {
3601                 /*
3602                  * Firmware will apply the following mask if the nodename was
3603                  * not provided.
3604                  */
3605                 memcpy(icb->node_name, icb->port_name, WWN_SIZE);
3606                 icb->node_name[0] &= 0xF0;
3607         }
3608
3609         /* Set host adapter parameters. */
3610         ha->flags.disable_risc_code_load = 0;
3611         ha->flags.enable_lip_reset = 0;
3612         ha->flags.enable_lip_full_login =
3613             le32_to_cpu(nv->host_p) & BIT_10 ? 1: 0;
3614         ha->flags.enable_target_reset =
3615             le32_to_cpu(nv->host_p) & BIT_11 ? 1: 0;
3616         ha->flags.enable_led_scheme = 0;
3617         ha->flags.disable_serdes = le32_to_cpu(nv->host_p) & BIT_5 ? 1: 0;
3618
3619         ha->operating_mode = (le32_to_cpu(icb->firmware_options_2) &
3620             (BIT_6 | BIT_5 | BIT_4)) >> 4;
3621
3622         memcpy(ha->fw_seriallink_options24, nv->seriallink_options,
3623             sizeof(ha->fw_seriallink_options24));
3624
3625         /* save HBA serial number */
3626         ha->serial0 = icb->port_name[5];
3627         ha->serial1 = icb->port_name[6];
3628         ha->serial2 = icb->port_name[7];
3629         ha->node_name = icb->node_name;
3630         ha->port_name = icb->port_name;
3631
3632         icb->execution_throttle = __constant_cpu_to_le16(0xFFFF);
3633
3634         ha->retry_count = le16_to_cpu(nv->login_retry_count);
3635
3636         /* Set minimum login_timeout to 4 seconds. */
3637         if (le16_to_cpu(nv->login_timeout) < ql2xlogintimeout)
3638                 nv->login_timeout = cpu_to_le16(ql2xlogintimeout);
3639         if (le16_to_cpu(nv->login_timeout) < 4)
3640                 nv->login_timeout = __constant_cpu_to_le16(4);
3641         ha->login_timeout = le16_to_cpu(nv->login_timeout);
3642         icb->login_timeout = nv->login_timeout;
3643
3644         /* Set minimum RATOV to 100 tenths of a second. */
3645         ha->r_a_tov = 100;
3646
3647         ha->loop_reset_delay = nv->reset_delay;
3648
3649         /* Link Down Timeout = 0:
3650          *
3651          *      When Port Down timer expires we will start returning
3652          *      I/O's to OS with "DID_NO_CONNECT".
3653          *
3654          * Link Down Timeout != 0:
3655          *
3656          *       The driver waits for the link to come up after link down
3657          *       before returning I/Os to OS with "DID_NO_CONNECT".
3658          */
3659         if (le16_to_cpu(nv->link_down_timeout) == 0) {
3660                 ha->loop_down_abort_time =
3661                     (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
3662         } else {
3663                 ha->link_down_timeout = le16_to_cpu(nv->link_down_timeout);
3664                 ha->loop_down_abort_time =
3665                     (LOOP_DOWN_TIME - ha->link_down_timeout);
3666         }
3667
3668         /* Need enough time to try and get the port back. */
3669         ha->port_down_retry_count = le16_to_cpu(nv->port_down_retry_count);
3670         if (qlport_down_retry)
3671                 ha->port_down_retry_count = qlport_down_retry;
3672
3673         /* Set login_retry_count */
3674         ha->login_retry_count  = le16_to_cpu(nv->login_retry_count);
3675         if (ha->port_down_retry_count ==
3676             le16_to_cpu(nv->port_down_retry_count) &&
3677             ha->port_down_retry_count > 3)
3678                 ha->login_retry_count = ha->port_down_retry_count;
3679         else if (ha->port_down_retry_count > (int)ha->login_retry_count)
3680                 ha->login_retry_count = ha->port_down_retry_count;
3681         if (ql2xloginretrycount)
3682                 ha->login_retry_count = ql2xloginretrycount;
3683
3684         /* Enable ZIO. */
3685         if (!ha->flags.init_done) {
3686                 ha->zio_mode = le32_to_cpu(icb->firmware_options_2) &
3687                     (BIT_3 | BIT_2 | BIT_1 | BIT_0);
3688                 ha->zio_timer = le16_to_cpu(icb->interrupt_delay_timer) ?
3689                     le16_to_cpu(icb->interrupt_delay_timer): 2;
3690         }
3691         icb->firmware_options_2 &= __constant_cpu_to_le32(
3692             ~(BIT_3 | BIT_2 | BIT_1 | BIT_0));
3693         ha->flags.process_response_queue = 0;
3694         if (ha->zio_mode != QLA_ZIO_DISABLED) {
3695                 ha->zio_mode = QLA_ZIO_MODE_6;
3696
3697                 DEBUG2(printk("scsi(%ld): ZIO mode %d enabled; timer delay "
3698                     "(%d us).\n", ha->host_no, ha->zio_mode,
3699                     ha->zio_timer * 100));
3700                 qla_printk(KERN_INFO, ha,
3701                     "ZIO mode %d enabled; timer delay (%d us).\n",
3702                     ha->zio_mode, ha->zio_timer * 100);
3703
3704                 icb->firmware_options_2 |= cpu_to_le32(
3705                     (uint32_t)ha->zio_mode);
3706                 icb->interrupt_delay_timer = cpu_to_le16(ha->zio_timer);
3707                 ha->flags.process_response_queue = 1;
3708         }
3709
3710         if (rval) {
3711                 DEBUG2_3(printk(KERN_WARNING
3712                     "scsi(%ld): NVRAM configuration failed!\n", ha->host_no));
3713         }
3714         return (rval);
3715 }
3716
3717 static int
3718 qla24xx_load_risc_flash(scsi_qla_host_t *ha, uint32_t *srisc_addr)
3719 {
3720         int     rval;
3721         int     segments, fragment;
3722         uint32_t faddr;
3723         uint32_t *dcode, dlen;
3724         uint32_t risc_addr;
3725         uint32_t risc_size;
3726         uint32_t i;
3727
3728         rval = QLA_SUCCESS;
3729
3730         segments = FA_RISC_CODE_SEGMENTS;
3731         faddr = FA_RISC_CODE_ADDR;
3732         dcode = (uint32_t *)ha->request_ring;
3733         *srisc_addr = 0;
3734
3735         /* Validate firmware image by checking version. */
3736         qla24xx_read_flash_data(ha, dcode, faddr + 4, 4);
3737         for (i = 0; i < 4; i++)
3738                 dcode[i] = be32_to_cpu(dcode[i]);
3739         if ((dcode[0] == 0xffffffff && dcode[1] == 0xffffffff &&
3740             dcode[2] == 0xffffffff && dcode[3] == 0xffffffff) ||
3741             (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
3742                 dcode[3] == 0)) {
3743                 qla_printk(KERN_WARNING, ha,
3744                     "Unable to verify integrity of flash firmware image!\n");
3745                 qla_printk(KERN_WARNING, ha,
3746                     "Firmware data: %08x %08x %08x %08x!\n", dcode[0],
3747                     dcode[1], dcode[2], dcode[3]);
3748
3749                 return QLA_FUNCTION_FAILED;
3750         }
3751
3752         while (segments && rval == QLA_SUCCESS) {
3753                 /* Read segment's load information. */
3754                 qla24xx_read_flash_data(ha, dcode, faddr, 4);
3755
3756                 risc_addr = be32_to_cpu(dcode[2]);
3757                 *srisc_addr = *srisc_addr == 0 ? risc_addr : *srisc_addr;
3758                 risc_size = be32_to_cpu(dcode[3]);
3759
3760                 fragment = 0;
3761                 while (risc_size > 0 && rval == QLA_SUCCESS) {
3762                         dlen = (uint32_t)(ha->fw_transfer_size >> 2);
3763                         if (dlen > risc_size)
3764                                 dlen = risc_size;
3765
3766                         DEBUG7(printk("scsi(%ld): Loading risc segment@ risc "
3767                             "addr %x, number of dwords 0x%x, offset 0x%x.\n",
3768                             ha->host_no, risc_addr, dlen, faddr));
3769
3770                         qla24xx_read_flash_data(ha, dcode, faddr, dlen);
3771                         for (i = 0; i < dlen; i++)
3772                                 dcode[i] = swab32(dcode[i]);
3773
3774                         rval = qla2x00_load_ram(ha, ha->request_dma, risc_addr,
3775                             dlen);
3776                         if (rval) {
3777                                 DEBUG(printk("scsi(%ld):[ERROR] Failed to load "
3778                                     "segment %d of firmware\n", ha->host_no,
3779                                     fragment));
3780                                 qla_printk(KERN_WARNING, ha,
3781                                     "[ERROR] Failed to load segment %d of "
3782                                     "firmware\n", fragment);
3783                                 break;
3784                         }
3785
3786                         faddr += dlen;
3787                         risc_addr += dlen;
3788                         risc_size -= dlen;
3789                         fragment++;
3790                 }
3791
3792                 /* Next segment. */
3793                 segments--;
3794         }
3795
3796         return rval;
3797 }
3798
3799 #define QLA_FW_URL "ftp://ftp.qlogic.com/outgoing/linux/firmware/"
3800
3801 int
3802 qla2x00_load_risc(scsi_qla_host_t *ha, uint32_t *srisc_addr)
3803 {
3804         int     rval;
3805         int     i, fragment;
3806         uint16_t *wcode, *fwcode;
3807         uint32_t risc_addr, risc_size, fwclen, wlen, *seg;
3808         struct fw_blob *blob;
3809
3810         /* Load firmware blob. */
3811         blob = qla2x00_request_firmware(ha);
3812         if (!blob) {
3813                 qla_printk(KERN_ERR, ha, "Firmware image unavailable.\n");
3814                 qla_printk(KERN_ERR, ha, "Firmware images can be retrieved "
3815                     "from: " QLA_FW_URL ".\n");
3816                 return QLA_FUNCTION_FAILED;
3817         }
3818
3819         rval = QLA_SUCCESS;
3820
3821         wcode = (uint16_t *)ha->request_ring;
3822         *srisc_addr = 0;
3823         fwcode = (uint16_t *)blob->fw->data;
3824         fwclen = 0;
3825
3826         /* Validate firmware image by checking version. */
3827         if (blob->fw->size < 8 * sizeof(uint16_t)) {
3828                 qla_printk(KERN_WARNING, ha,
3829                     "Unable to verify integrity of firmware image (%Zd)!\n",
3830                     blob->fw->size);
3831                 goto fail_fw_integrity;
3832         }
3833         for (i = 0; i < 4; i++)
3834                 wcode[i] = be16_to_cpu(fwcode[i + 4]);
3835         if ((wcode[0] == 0xffff && wcode[1] == 0xffff && wcode[2] == 0xffff &&
3836             wcode[3] == 0xffff) || (wcode[0] == 0 && wcode[1] == 0 &&
3837                 wcode[2] == 0 && wcode[3] == 0)) {
3838                 qla_printk(KERN_WARNING, ha,
3839                     "Unable to verify integrity of firmware image!\n");
3840                 qla_printk(KERN_WARNING, ha,
3841                     "Firmware data: %04x %04x %04x %04x!\n", wcode[0],
3842                     wcode[1], wcode[2], wcode[3]);
3843                 goto fail_fw_integrity;
3844         }
3845
3846         seg = blob->segs;
3847         while (*seg && rval == QLA_SUCCESS) {
3848                 risc_addr = *seg;
3849                 *srisc_addr = *srisc_addr == 0 ? *seg : *srisc_addr;
3850                 risc_size = be16_to_cpu(fwcode[3]);
3851
3852                 /* Validate firmware image size. */
3853                 fwclen += risc_size * sizeof(uint16_t);
3854                 if (blob->fw->size < fwclen) {
3855                         qla_printk(KERN_WARNING, ha,
3856                             "Unable to verify integrity of firmware image "
3857                             "(%Zd)!\n", blob->fw->size);
3858                         goto fail_fw_integrity;
3859                 }
3860
3861                 fragment = 0;
3862                 while (risc_size > 0 && rval == QLA_SUCCESS) {
3863                         wlen = (uint16_t)(ha->fw_transfer_size >> 1);
3864                         if (wlen > risc_size)
3865                                 wlen = risc_size;
3866
3867                         DEBUG7(printk("scsi(%ld): Loading risc segment@ risc "
3868                             "addr %x, number of words 0x%x.\n", ha->host_no,
3869                             risc_addr, wlen));
3870
3871                         for (i = 0; i < wlen; i++)
3872                                 wcode[i] = swab16(fwcode[i]);
3873
3874                         rval = qla2x00_load_ram(ha, ha->request_dma, risc_addr,
3875                             wlen);
3876                         if (rval) {
3877                                 DEBUG(printk("scsi(%ld):[ERROR] Failed to load "
3878                                     "segment %d of firmware\n", ha->host_no,
3879                                     fragment));
3880                                 qla_printk(KERN_WARNING, ha,
3881                                     "[ERROR] Failed to load segment %d of "
3882                                     "firmware\n", fragment);
3883                                 break;
3884                         }
3885
3886                         fwcode += wlen;
3887                         risc_addr += wlen;
3888                         risc_size -= wlen;
3889                         fragment++;
3890                 }
3891
3892                 /* Next segment. */
3893                 seg++;
3894         }
3895         return rval;
3896
3897 fail_fw_integrity:
3898         return QLA_FUNCTION_FAILED;
3899 }
3900
3901 int
3902 qla24xx_load_risc(scsi_qla_host_t *ha, uint32_t *srisc_addr)
3903 {
3904         int     rval;
3905         int     segments, fragment;
3906         uint32_t *dcode, dlen;
3907         uint32_t risc_addr;
3908         uint32_t risc_size;
3909         uint32_t i;
3910         struct fw_blob *blob;
3911         uint32_t *fwcode, fwclen;
3912
3913         /* Load firmware blob. */
3914         blob = qla2x00_request_firmware(ha);
3915         if (!blob) {
3916                 qla_printk(KERN_ERR, ha, "Firmware image unavailable.\n");
3917                 qla_printk(KERN_ERR, ha, "Firmware images can be retrieved "
3918                     "from: " QLA_FW_URL ".\n");
3919
3920                 /* Try to load RISC code from flash. */
3921                 qla_printk(KERN_ERR, ha, "Attempting to load (potentially "
3922                     "outdated) firmware from flash.\n");
3923                 return qla24xx_load_risc_flash(ha, srisc_addr);
3924         }
3925
3926         rval = QLA_SUCCESS;
3927
3928         segments = FA_RISC_CODE_SEGMENTS;
3929         dcode = (uint32_t *)ha->request_ring;
3930         *srisc_addr = 0;
3931         fwcode = (uint32_t *)blob->fw->data;
3932         fwclen = 0;
3933
3934         /* Validate firmware image by checking version. */
3935         if (blob->fw->size < 8 * sizeof(uint32_t)) {
3936                 qla_printk(KERN_WARNING, ha,
3937                     "Unable to verify integrity of firmware image (%Zd)!\n",
3938                     blob->fw->size);
3939                 goto fail_fw_integrity;
3940         }
3941         for (i = 0; i < 4; i++)
3942                 dcode[i] = be32_to_cpu(fwcode[i + 4]);
3943         if ((dcode[0] == 0xffffffff && dcode[1] == 0xffffffff &&
3944             dcode[2] == 0xffffffff && dcode[3] == 0xffffffff) ||
3945             (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
3946                 dcode[3] == 0)) {
3947                 qla_printk(KERN_WARNING, ha,
3948                     "Unable to verify integrity of firmware image!\n");
3949                 qla_printk(KERN_WARNING, ha,
3950                     "Firmware data: %08x %08x %08x %08x!\n", dcode[0],
3951                     dcode[1], dcode[2], dcode[3]);
3952                 goto fail_fw_integrity;
3953         }
3954
3955         while (segments && rval == QLA_SUCCESS) {
3956                 risc_addr = be32_to_cpu(fwcode[2]);
3957                 *srisc_addr = *srisc_addr == 0 ? risc_addr : *srisc_addr;
3958                 risc_size = be32_to_cpu(fwcode[3]);
3959
3960                 /* Validate firmware image size. */
3961                 fwclen += risc_size * sizeof(uint32_t);
3962                 if (blob->fw->size < fwclen) {
3963                         qla_printk(KERN_WARNING, ha,
3964                             "Unable to verify integrity of firmware image "
3965                             "(%Zd)!\n", blob->fw->size);
3966
3967                         goto fail_fw_integrity;
3968                 }
3969
3970                 fragment = 0;
3971                 while (risc_size > 0 && rval == QLA_SUCCESS) {
3972                         dlen = (uint32_t)(ha->fw_transfer_size >> 2);
3973                         if (dlen > risc_size)
3974                                 dlen = risc_size;
3975
3976                         DEBUG7(printk("scsi(%ld): Loading risc segment@ risc "
3977                             "addr %x, number of dwords 0x%x.\n", ha->host_no,
3978                             risc_addr, dlen));
3979
3980                         for (i = 0; i < dlen; i++)
3981                                 dcode[i] = swab32(fwcode[i]);
3982
3983                         rval = qla2x00_load_ram(ha, ha->request_dma, risc_addr,
3984                             dlen);
3985                         if (rval) {
3986                                 DEBUG(printk("scsi(%ld):[ERROR] Failed to load "
3987                                     "segment %d of firmware\n", ha->host_no,
3988                                     fragment));
3989                                 qla_printk(KERN_WARNING, ha,
3990                                     "[ERROR] Failed to load segment %d of "
3991                                     "firmware\n", fragment);
3992                                 break;
3993                         }
3994
3995                         fwcode += dlen;
3996                         risc_addr += dlen;
3997                         risc_size -= dlen;
3998                         fragment++;
3999                 }
4000
4001                 /* Next segment. */
4002                 segments--;
4003         }
4004         return rval;
4005
4006 fail_fw_integrity:
4007         return QLA_FUNCTION_FAILED;
4008 }
4009
4010 void
4011 qla2x00_try_to_stop_firmware(scsi_qla_host_t *ha)
4012 {
4013         int ret, retries;
4014
4015         if (!IS_FWI2_CAPABLE(ha))
4016                 return;
4017         if (!ha->fw_major_version)
4018                 return;
4019
4020         ret = qla2x00_stop_firmware(ha);
4021         for (retries = 5; ret != QLA_SUCCESS && ret != QLA_FUNCTION_TIMEOUT &&
4022             retries ; retries--) {
4023                 qla2x00_reset_chip(ha);
4024                 if (qla2x00_chip_diag(ha) != QLA_SUCCESS)
4025                         continue;
4026                 if (qla2x00_setup_chip(ha) != QLA_SUCCESS)
4027                         continue;
4028                 qla_printk(KERN_INFO, ha,
4029                     "Attempting retry of stop-firmware command...\n");
4030                 ret = qla2x00_stop_firmware(ha);
4031         }
4032 }
4033
4034 int
4035 qla24xx_configure_vhba(scsi_qla_host_t *ha)
4036 {
4037         int rval = QLA_SUCCESS;
4038         uint16_t mb[MAILBOX_REGISTER_COUNT];
4039
4040         if (!ha->parent)
4041                 return -EINVAL;
4042
4043         rval = qla2x00_fw_ready(ha->parent);
4044         if (rval == QLA_SUCCESS) {
4045                 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
4046                 qla2x00_marker(ha->parent, 0, 0, MK_SYNC_ALL);
4047         }
4048
4049         ha->flags.management_server_logged_in = 0;
4050
4051         /* Login to SNS first */
4052         qla24xx_login_fabric(ha->parent, NPH_SNS, 0xff, 0xff, 0xfc,
4053             mb, BIT_1);
4054         if (mb[0] != MBS_COMMAND_COMPLETE) {
4055                 DEBUG15(qla_printk(KERN_INFO, ha,
4056                     "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x "
4057                     "mb[2]=%x mb[6]=%x mb[7]=%x\n", NPH_SNS,
4058                     mb[0], mb[1], mb[2], mb[6], mb[7]));
4059                 return (QLA_FUNCTION_FAILED);
4060         }
4061
4062         atomic_set(&ha->loop_down_timer, 0);
4063         atomic_set(&ha->loop_state, LOOP_UP);
4064         set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
4065         set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
4066         rval = qla2x00_loop_resync(ha->parent);
4067
4068         return rval;
4069 }
4070
4071 /* 84XX Support **************************************************************/
4072
4073 static LIST_HEAD(qla_cs84xx_list);
4074 static DEFINE_MUTEX(qla_cs84xx_mutex);
4075
4076 static struct qla_chip_state_84xx *
4077 qla84xx_get_chip(struct scsi_qla_host *ha)
4078 {
4079         struct qla_chip_state_84xx *cs84xx;
4080
4081         mutex_lock(&qla_cs84xx_mutex);
4082
4083         /* Find any shared 84xx chip. */
4084         list_for_each_entry(cs84xx, &qla_cs84xx_list, list) {
4085                 if (cs84xx->bus == ha->pdev->bus) {
4086                         kref_get(&cs84xx->kref);
4087                         goto done;
4088                 }
4089         }
4090
4091         cs84xx = kzalloc(sizeof(*cs84xx), GFP_KERNEL);
4092         if (!cs84xx)
4093                 goto done;
4094
4095         kref_init(&cs84xx->kref);
4096         spin_lock_init(&cs84xx->access_lock);
4097         mutex_init(&cs84xx->fw_update_mutex);
4098         cs84xx->bus = ha->pdev->bus;
4099
4100         list_add_tail(&cs84xx->list, &qla_cs84xx_list);
4101 done:
4102         mutex_unlock(&qla_cs84xx_mutex);
4103         return cs84xx;
4104 }
4105
4106 static void
4107 __qla84xx_chip_release(struct kref *kref)
4108 {
4109         struct qla_chip_state_84xx *cs84xx =
4110             container_of(kref, struct qla_chip_state_84xx, kref);
4111
4112         mutex_lock(&qla_cs84xx_mutex);
4113         list_del(&cs84xx->list);
4114         mutex_unlock(&qla_cs84xx_mutex);
4115         kfree(cs84xx);
4116 }
4117
4118 void
4119 qla84xx_put_chip(struct scsi_qla_host *ha)
4120 {
4121         if (ha->cs84xx)
4122                 kref_put(&ha->cs84xx->kref, __qla84xx_chip_release);
4123 }
4124
4125 static int
4126 qla84xx_init_chip(scsi_qla_host_t *ha)
4127 {
4128         int rval;
4129         uint16_t status[2];
4130
4131         mutex_lock(&ha->cs84xx->fw_update_mutex);
4132
4133         rval = qla84xx_verify_chip(ha, status);
4134
4135         mutex_unlock(&ha->cs84xx->fw_update_mutex);
4136
4137         return rval != QLA_SUCCESS || status[0] ? QLA_FUNCTION_FAILED:
4138             QLA_SUCCESS;
4139 }