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 #include "qla_gbl.h"
   9
  10 #include <linux/delay.h>
  11 #include <linux/vmalloc.h>
  12
  13 #include "qla_devtbl.h"
  14
  15 #ifdef CONFIG_SPARC
  16 #include <asm/prom.h>
  17 #endif
  18
  19 /*
  20 *  QLogic ISP2x00 Hardware Support Function Prototypes.
  21 */
  22 static int qla2x00_isp_firmware(scsi_qla_host_t *);
  23 static int qla2x00_setup_chip(scsi_qla_host_t *);
  24 static int qla2x00_init_rings(scsi_qla_host_t *);
  25 static int qla2x00_fw_ready(scsi_qla_host_t *);
  26 static int qla2x00_configure_hba(scsi_qla_host_t *);
  27 static int qla2x00_configure_loop(scsi_qla_host_t *);
  28 static int qla2x00_configure_local_loop(scsi_qla_host_t *);
  29 static int qla2x00_configure_fabric(scsi_qla_host_t *);
  30 static int qla2x00_find_all_fabric_devs(scsi_qla_host_t *, struct list_head *);
  31 static int qla2x00_device_resync(scsi_qla_host_t *);
  32 static int qla2x00_fabric_dev_login(scsi_qla_host_t *, fc_port_t *,
  33     uint16_t *);
  34
  35 static int qla2x00_restart_isp(scsi_qla_host_t *);
  36
  37 static int qla2x00_find_new_loop_id(scsi_qla_host_t *, fc_port_t *);
  38
  39 static struct qla_chip_state_84xx *qla84xx_get_chip(struct scsi_qla_host *);
  40 static int qla84xx_init_chip(scsi_qla_host_t *);
  41 static int qla25xx_init_queues(struct qla_hw_data *);
  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 *vha)
  59 {
  60         int     rval;
  61         struct qla_hw_data *ha = vha->hw;
  62         struct req_que *req = ha->req_q_map[0];
  63
  64         /* Clear adapter flags. */
  65         vha->flags.online = 0;
  66         ha->flags.chip_reset_done = 0;
  67         vha->flags.reset_active = 0;
  68         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
  69         atomic_set(&vha->loop_state, LOOP_DOWN);
  70         vha->device_flags = DFLG_NO_CABLE;
  71         vha->dpc_flags = 0;
  72         vha->flags.management_server_logged_in = 0;
  73         vha->marker_needed = 0;
  74         ha->isp_abort_cnt = 0;
  75         ha->beacon_blink_led = 0;
  76         set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
  77
  78         set_bit(0, ha->req_qid_map);
  79         set_bit(0, ha->rsp_qid_map);
  80
  81         qla_printk(KERN_INFO, ha, "Configuring PCI space...\n");
  82         rval = ha->isp_ops->pci_config(vha);
  83         if (rval) {
  84                 DEBUG2(printk("scsi(%ld): Unable to configure PCI space.\n",
  85                     vha->host_no));
  86                 return (rval);
  87         }
  88
  89         ha->isp_ops->reset_chip(vha);
  90
  91         rval = qla2xxx_get_flash_info(vha);
  92         if (rval) {
  93                 DEBUG2(printk("scsi(%ld): Unable to validate FLASH data.\n",
  94                     vha->host_no));
  95                 return (rval);
  96         }
  97
  98         ha->isp_ops->get_flash_version(vha, req->ring);
  99
 100         qla_printk(KERN_INFO, ha, "Configure NVRAM parameters...\n");
 101
 102         ha->isp_ops->nvram_config(vha);
 103
 104         if (ha->flags.disable_serdes) {
 105                 /* Mask HBA via NVRAM settings? */
 106                 qla_printk(KERN_INFO, ha, "Masking HBA WWPN "
 107                     "%02x%02x%02x%02x%02x%02x%02x%02x (via NVRAM).\n",
 108                     vha->port_name[0], vha->port_name[1],
 109                     vha->port_name[2], vha->port_name[3],
 110                     vha->port_name[4], vha->port_name[5],
 111                     vha->port_name[6], vha->port_name[7]);
 112                 return QLA_FUNCTION_FAILED;
 113         }
 114
 115         qla_printk(KERN_INFO, ha, "Verifying loaded RISC code...\n");
 116
 117         if (qla2x00_isp_firmware(vha) != QLA_SUCCESS) {
 118                 rval = ha->isp_ops->chip_diag(vha);
 119                 if (rval)
 120                         return (rval);
 121                 rval = qla2x00_setup_chip(vha);
 122                 if (rval)
 123                         return (rval);
 124         }
 125         if (IS_QLA84XX(ha)) {
 126                 ha->cs84xx = qla84xx_get_chip(vha);
 127                 if (!ha->cs84xx) {
 128                         qla_printk(KERN_ERR, ha,
 129                             "Unable to configure ISP84XX.\n");
 130                         return QLA_FUNCTION_FAILED;
 131                 }
 132         }
 133         rval = qla2x00_init_rings(vha);
 134         ha->flags.chip_reset_done = 1;
 135
 136         return (rval);
 137 }
 138
 139 /**
 140  * qla2100_pci_config() - Setup ISP21xx PCI configuration registers.
 141  * @ha: HA context
 142  *
 143  * Returns 0 on success.
 144  */
 145 int
 146 qla2100_pci_config(scsi_qla_host_t *vha)
 147 {
 148         uint16_t w;
 149         unsigned long flags;
 150         struct qla_hw_data *ha = vha->hw;
 151         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 152
 153         pci_set_master(ha->pdev);
 154         pci_try_set_mwi(ha->pdev);
 155
 156         pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
 157         w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
 158         pci_write_config_word(ha->pdev, PCI_COMMAND, w);
 159
 160         pci_disable_rom(ha->pdev);
 161
 162         /* Get PCI bus information. */
 163         spin_lock_irqsave(&ha->hardware_lock, flags);
 164         ha->pci_attr = RD_REG_WORD(&reg->ctrl_status);
 165         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 166
 167         return QLA_SUCCESS;
 168 }
 169
 170 /**
 171  * qla2300_pci_config() - Setup ISP23xx PCI configuration registers.
 172  * @ha: HA context
 173  *
 174  * Returns 0 on success.
 175  */
 176 int
 177 qla2300_pci_config(scsi_qla_host_t *vha)
 178 {
 179         uint16_t        w;
 180         unsigned long   flags = 0;
 181         uint32_t        cnt;
 182         struct qla_hw_data *ha = vha->hw;
 183         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 184
 185         pci_set_master(ha->pdev);
 186         pci_try_set_mwi(ha->pdev);
 187
 188         pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
 189         w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
 190
 191         if (IS_QLA2322(ha) || IS_QLA6322(ha))
 192                 w &= ~PCI_COMMAND_INTX_DISABLE;
 193         pci_write_config_word(ha->pdev, PCI_COMMAND, w);
 194
 195         /*
 196          * If this is a 2300 card and not 2312, reset the
 197          * COMMAND_INVALIDATE due to a bug in the 2300. Unfortunately,
 198          * the 2310 also reports itself as a 2300 so we need to get the
 199          * fb revision level -- a 6 indicates it really is a 2300 and
 200          * not a 2310.
 201          */
 202         if (IS_QLA2300(ha)) {
 203                 spin_lock_irqsave(&ha->hardware_lock, flags);
 204
 205                 /* Pause RISC. */
 206                 WRT_REG_WORD(&reg->hccr, HCCR_PAUSE_RISC);
 207                 for (cnt = 0; cnt < 30000; cnt++) {
 208                         if ((RD_REG_WORD(&reg->hccr) & HCCR_RISC_PAUSE) != 0)
 209                                 break;
 210
 211                         udelay(10);
 212                 }
 213
 214                 /* Select FPM registers. */
 215                 WRT_REG_WORD(&reg->ctrl_status, 0x20);
 216                 RD_REG_WORD(&reg->ctrl_status);
 217
 218                 /* Get the fb rev level */
 219                 ha->fb_rev = RD_FB_CMD_REG(ha, reg);
 220
 221                 if (ha->fb_rev == FPM_2300)
 222                         pci_clear_mwi(ha->pdev);
 223
 224                 /* Deselect FPM registers. */
 225                 WRT_REG_WORD(&reg->ctrl_status, 0x0);
 226                 RD_REG_WORD(&reg->ctrl_status);
 227
 228                 /* Release RISC module. */
 229                 WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
 230                 for (cnt = 0; cnt < 30000; cnt++) {
 231                         if ((RD_REG_WORD(&reg->hccr) & HCCR_RISC_PAUSE) == 0)
 232                                 break;
 233
 234                         udelay(10);
 235                 }
 236
 237                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 238         }
 239
 240         pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);
 241
 242         pci_disable_rom(ha->pdev);
 243
 244         /* Get PCI bus information. */
 245         spin_lock_irqsave(&ha->hardware_lock, flags);
 246         ha->pci_attr = RD_REG_WORD(&reg->ctrl_status);
 247         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 248
 249         return QLA_SUCCESS;
 250 }
 251
 252 /**
 253  * qla24xx_pci_config() - Setup ISP24xx PCI configuration registers.
 254  * @ha: HA context
 255  *
 256  * Returns 0 on success.
 257  */
 258 int
 259 qla24xx_pci_config(scsi_qla_host_t *vha)
 260 {
 261         uint16_t w;
 262         unsigned long flags = 0;
 263         struct qla_hw_data *ha = vha->hw;
 264         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
 265
 266         pci_set_master(ha->pdev);
 267         pci_try_set_mwi(ha->pdev);
 268
 269         pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
 270         w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
 271         w &= ~PCI_COMMAND_INTX_DISABLE;
 272         pci_write_config_word(ha->pdev, PCI_COMMAND, w);
 273
 274         pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);
 275
 276         /* PCI-X -- adjust Maximum Memory Read Byte Count (2048). */
 277         if (pci_find_capability(ha->pdev, PCI_CAP_ID_PCIX))
 278                 pcix_set_mmrbc(ha->pdev, 2048);
 279
 280         /* PCIe -- adjust Maximum Read Request Size (2048). */
 281         if (pci_find_capability(ha->pdev, PCI_CAP_ID_EXP))
 282                 pcie_set_readrq(ha->pdev, 2048);
 283
 284         pci_disable_rom(ha->pdev);
 285
 286         ha->chip_revision = ha->pdev->revision;
 287
 288         /* Get PCI bus information. */
 289         spin_lock_irqsave(&ha->hardware_lock, flags);
 290         ha->pci_attr = RD_REG_DWORD(&reg->ctrl_status);
 291         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 292
 293         return QLA_SUCCESS;
 294 }
 295
 296 /**
 297  * qla25xx_pci_config() - Setup ISP25xx PCI configuration registers.
 298  * @ha: HA context
 299  *
 300  * Returns 0 on success.
 301  */
 302 int
 303 qla25xx_pci_config(scsi_qla_host_t *vha)
 304 {
 305         uint16_t w;
 306         struct qla_hw_data *ha = vha->hw;
 307
 308         pci_set_master(ha->pdev);
 309         pci_try_set_mwi(ha->pdev);
 310
 311         pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
 312         w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
 313         w &= ~PCI_COMMAND_INTX_DISABLE;
 314         pci_write_config_word(ha->pdev, PCI_COMMAND, w);
 315
 316         /* PCIe -- adjust Maximum Read Request Size (2048). */
 317         if (pci_find_capability(ha->pdev, PCI_CAP_ID_EXP))
 318                 pcie_set_readrq(ha->pdev, 2048);
 319
 320         pci_disable_rom(ha->pdev);
 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 *vha)
 335 {
 336         int  rval;
 337         uint16_t loop_id, topo, sw_cap;
 338         uint8_t domain, area, al_pa;
 339         struct qla_hw_data *ha = vha->hw;
 340
 341         /* Assume loading risc code */
 342         rval = QLA_FUNCTION_FAILED;
 343
 344         if (ha->flags.disable_risc_code_load) {
 345                 DEBUG2(printk("scsi(%ld): RISC CODE NOT loaded\n",
 346                     vha->host_no));
 347                 qla_printk(KERN_INFO, ha, "RISC CODE NOT loaded\n");
 348
 349                 /* Verify checksum of loaded RISC code. */
 350                 rval = qla2x00_verify_checksum(vha, ha->fw_srisc_address);
 351                 if (rval == QLA_SUCCESS) {
 352                         /* And, verify we are not in ROM code. */
 353                         rval = qla2x00_get_adapter_id(vha, &loop_id, &al_pa,
 354                             &area, &domain, &topo, &sw_cap);
 355                 }
 356         }
 357
 358         if (rval) {
 359                 DEBUG2_3(printk("scsi(%ld): **** Load RISC code ****\n",
 360                     vha->host_no));
 361         }
 362
 363         return (rval);
 364 }
 365
 366 /**
 367  * qla2x00_reset_chip() - Reset ISP chip.
 368  * @ha: HA context
 369  *
 370  * Returns 0 on success.
 371  */
 372 void
 373 qla2x00_reset_chip(scsi_qla_host_t *vha)
 374 {
 375         unsigned long   flags = 0;
 376         struct qla_hw_data *ha = vha->hw;
 377         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 378         uint32_t        cnt;
 379         uint16_t        cmd;
 380
 381         ha->isp_ops->disable_intrs(ha);
 382
 383         spin_lock_irqsave(&ha->hardware_lock, flags);
 384
 385         /* Turn off master enable */
 386         cmd = 0;
 387         pci_read_config_word(ha->pdev, PCI_COMMAND, &cmd);
 388         cmd &= ~PCI_COMMAND_MASTER;
 389         pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
 390
 391         if (!IS_QLA2100(ha)) {
 392                 /* Pause RISC. */
 393                 WRT_REG_WORD(&reg->hccr, HCCR_PAUSE_RISC);
 394                 if (IS_QLA2200(ha) || IS_QLA2300(ha)) {
 395                         for (cnt = 0; cnt < 30000; cnt++) {
 396                                 if ((RD_REG_WORD(&reg->hccr) &
 397                                     HCCR_RISC_PAUSE) != 0)
 398                                         break;
 399                                 udelay(100);
 400                         }
 401                 } else {
 402                         RD_REG_WORD(&reg->hccr);        /* PCI Posting. */
 403                         udelay(10);
 404                 }
 405
 406                 /* Select FPM registers. */
 407                 WRT_REG_WORD(&reg->ctrl_status, 0x20);
 408                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
 409
 410                 /* FPM Soft Reset. */
 411                 WRT_REG_WORD(&reg->fpm_diag_config, 0x100);
 412                 RD_REG_WORD(&reg->fpm_diag_config);     /* PCI Posting. */
 413
 414                 /* Toggle Fpm Reset. */
 415                 if (!IS_QLA2200(ha)) {
 416                         WRT_REG_WORD(&reg->fpm_diag_config, 0x0);
 417                         RD_REG_WORD(&reg->fpm_diag_config); /* PCI Posting. */
 418                 }
 419
 420                 /* Select frame buffer registers. */
 421                 WRT_REG_WORD(&reg->ctrl_status, 0x10);
 422                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
 423
 424                 /* Reset frame buffer FIFOs. */
 425                 if (IS_QLA2200(ha)) {
 426                         WRT_FB_CMD_REG(ha, reg, 0xa000);
 427                         RD_FB_CMD_REG(ha, reg);         /* PCI Posting. */
 428                 } else {
 429                         WRT_FB_CMD_REG(ha, reg, 0x00fc);
 430
 431                         /* Read back fb_cmd until zero or 3 seconds max */
 432                         for (cnt = 0; cnt < 3000; cnt++) {
 433                                 if ((RD_FB_CMD_REG(ha, reg) & 0xff) == 0)
 434                                         break;
 435                                 udelay(100);
 436                         }
 437                 }
 438
 439                 /* Select RISC module registers. */
 440                 WRT_REG_WORD(&reg->ctrl_status, 0);
 441                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
 442
 443                 /* Reset RISC processor. */
 444                 WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
 445                 RD_REG_WORD(&reg->hccr);                /* PCI Posting. */
 446
 447                 /* Release RISC processor. */
 448                 WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
 449                 RD_REG_WORD(&reg->hccr);                /* PCI Posting. */
 450         }
 451
 452         WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
 453         WRT_REG_WORD(&reg->hccr, HCCR_CLR_HOST_INT);
 454
 455         /* Reset ISP chip. */
 456         WRT_REG_WORD(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
 457
 458         /* Wait for RISC to recover from reset. */
 459         if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
 460                 /*
 461                  * It is necessary to for a delay here since the card doesn't
 462                  * respond to PCI reads during a reset. On some architectures
 463                  * this will result in an MCA.
 464                  */
 465                 udelay(20);
 466                 for (cnt = 30000; cnt; cnt--) {
 467                         if ((RD_REG_WORD(&reg->ctrl_status) &
 468                             CSR_ISP_SOFT_RESET) == 0)
 469                                 break;
 470                         udelay(100);
 471                 }
 472         } else
 473                 udelay(10);
 474
 475         /* Reset RISC processor. */
 476         WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
 477
 478         WRT_REG_WORD(&reg->semaphore, 0);
 479
 480         /* Release RISC processor. */
 481         WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
 482         RD_REG_WORD(&reg->hccr);                        /* PCI Posting. */
 483
 484         if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
 485                 for (cnt = 0; cnt < 30000; cnt++) {
 486                         if (RD_MAILBOX_REG(ha, reg, 0) != MBS_BUSY)
 487                                 break;
 488
 489                         udelay(100);
 490                 }
 491         } else
 492                 udelay(100);
 493
 494         /* Turn on master enable */
 495         cmd |= PCI_COMMAND_MASTER;
 496         pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
 497
 498         /* Disable RISC pause on FPM parity error. */
 499         if (!IS_QLA2100(ha)) {
 500                 WRT_REG_WORD(&reg->hccr, HCCR_DISABLE_PARITY_PAUSE);
 501                 RD_REG_WORD(&reg->hccr);                /* PCI Posting. */
 502         }
 503
 504         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 505 }
 506
 507 /**
 508  * qla24xx_reset_risc() - Perform full reset of ISP24xx RISC.
 509  * @ha: HA context
 510  *
 511  * Returns 0 on success.
 512  */
 513 static inline void
 514 qla24xx_reset_risc(scsi_qla_host_t *vha)
 515 {
 516         unsigned long flags = 0;
 517         struct qla_hw_data *ha = vha->hw;
 518         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
 519         uint32_t cnt, d2;
 520         uint16_t wd;
 521
 522         spin_lock_irqsave(&ha->hardware_lock, flags);
 523
 524         /* Reset RISC. */
 525         WRT_REG_DWORD(&reg->ctrl_status, CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
 526         for (cnt = 0; cnt < 30000; cnt++) {
 527                 if ((RD_REG_DWORD(&reg->ctrl_status) & CSRX_DMA_ACTIVE) == 0)
 528                         break;
 529
 530                 udelay(10);
 531         }
 532
 533         WRT_REG_DWORD(&reg->ctrl_status,
 534             CSRX_ISP_SOFT_RESET|CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
 535         pci_read_config_word(ha->pdev, PCI_COMMAND, &wd);
 536
 537         udelay(100);
 538         /* Wait for firmware to complete NVRAM accesses. */
 539         d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
 540         for (cnt = 10000 ; cnt && d2; cnt--) {
 541                 udelay(5);
 542                 d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
 543                 barrier();
 544         }
 545
 546         /* Wait for soft-reset to complete. */
 547         d2 = RD_REG_DWORD(&reg->ctrl_status);
 548         for (cnt = 6000000 ; cnt && (d2 & CSRX_ISP_SOFT_RESET); cnt--) {
 549                 udelay(5);
 550                 d2 = RD_REG_DWORD(&reg->ctrl_status);
 551                 barrier();
 552         }
 553
 554         WRT_REG_DWORD(&reg->hccr, HCCRX_SET_RISC_RESET);
 555         RD_REG_DWORD(&reg->hccr);
 556
 557         WRT_REG_DWORD(&reg->hccr, HCCRX_REL_RISC_PAUSE);
 558         RD_REG_DWORD(&reg->hccr);
 559
 560         WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_RESET);
 561         RD_REG_DWORD(&reg->hccr);
 562
 563         d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
 564         for (cnt = 6000000 ; cnt && d2; cnt--) {
 565                 udelay(5);
 566                 d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
 567                 barrier();
 568         }
 569
 570         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 571
 572         if (IS_NOPOLLING_TYPE(ha))
 573                 ha->isp_ops->enable_intrs(ha);
 574 }
 575
 576 /**
 577  * qla24xx_reset_chip() - Reset ISP24xx chip.
 578  * @ha: HA context
 579  *
 580  * Returns 0 on success.
 581  */
 582 void
 583 qla24xx_reset_chip(scsi_qla_host_t *vha)
 584 {
 585         struct qla_hw_data *ha = vha->hw;
 586         ha->isp_ops->disable_intrs(ha);
 587
 588         /* Perform RISC reset. */
 589         qla24xx_reset_risc(vha);
 590 }
 591
 592 /**
 593  * qla2x00_chip_diag() - Test chip for proper operation.
 594  * @ha: HA context
 595  *
 596  * Returns 0 on success.
 597  */
 598 int
 599 qla2x00_chip_diag(scsi_qla_host_t *vha)
 600 {
 601         int             rval;
 602         struct qla_hw_data *ha = vha->hw;
 603         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 604         unsigned long   flags = 0;
 605         uint16_t        data;
 606         uint32_t        cnt;
 607         uint16_t        mb[5];
 608         struct req_que *req = ha->req_q_map[0];
 609
 610         /* Assume a failed state */
 611         rval = QLA_FUNCTION_FAILED;
 612
 613         DEBUG3(printk("scsi(%ld): Testing device at %lx.\n",
 614             vha->host_no, (u_long)&reg->flash_address));
 615
 616         spin_lock_irqsave(&ha->hardware_lock, flags);
 617
 618         /* Reset ISP chip. */
 619         WRT_REG_WORD(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
 620
 621         /*
 622          * We need to have a delay here since the card will not respond while
 623          * in reset causing an MCA on some architectures.
 624          */
 625         udelay(20);
 626         data = qla2x00_debounce_register(&reg->ctrl_status);
 627         for (cnt = 6000000 ; cnt && (data & CSR_ISP_SOFT_RESET); cnt--) {
 628                 udelay(5);
 629                 data = RD_REG_WORD(&reg->ctrl_status);
 630                 barrier();
 631         }
 632
 633         if (!cnt)
 634                 goto chip_diag_failed;
 635
 636         DEBUG3(printk("scsi(%ld): Reset register cleared by chip reset\n",
 637             ha->host_no));
 638
 639         /* Reset RISC processor. */
 640         WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
 641         WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
 642
 643         /* Workaround for QLA2312 PCI parity error */
 644         if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
 645                 data = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 0));
 646                 for (cnt = 6000000; cnt && (data == MBS_BUSY); cnt--) {
 647                         udelay(5);
 648                         data = RD_MAILBOX_REG(ha, reg, 0);
 649                         barrier();
 650                 }
 651         } else
 652                 udelay(10);
 653
 654         if (!cnt)
 655                 goto chip_diag_failed;
 656
 657         /* Check product ID of chip */
 658         DEBUG3(printk("scsi(%ld): Checking product ID of chip\n", ha->host_no));
 659
 660         mb[1] = RD_MAILBOX_REG(ha, reg, 1);
 661         mb[2] = RD_MAILBOX_REG(ha, reg, 2);
 662         mb[3] = RD_MAILBOX_REG(ha, reg, 3);
 663         mb[4] = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 4));
 664         if (mb[1] != PROD_ID_1 || (mb[2] != PROD_ID_2 && mb[2] != PROD_ID_2a) ||
 665             mb[3] != PROD_ID_3) {
 666                 qla_printk(KERN_WARNING, ha,
 667                     "Wrong product ID = 0x%x,0x%x,0x%x\n", mb[1], mb[2], mb[3]);
 668
 669                 goto chip_diag_failed;
 670         }
 671         ha->product_id[0] = mb[1];
 672         ha->product_id[1] = mb[2];
 673         ha->product_id[2] = mb[3];
 674         ha->product_id[3] = mb[4];
 675
 676         /* Adjust fw RISC transfer size */
 677         if (req->length > 1024)
 678                 ha->fw_transfer_size = REQUEST_ENTRY_SIZE * 1024;
 679         else
 680                 ha->fw_transfer_size = REQUEST_ENTRY_SIZE *
 681                     req->length;
 682
 683         if (IS_QLA2200(ha) &&
 684             RD_MAILBOX_REG(ha, reg, 7) == QLA2200A_RISC_ROM_VER) {
 685                 /* Limit firmware transfer size with a 2200A */
 686                 DEBUG3(printk("scsi(%ld): Found QLA2200A chip.\n",
 687                     vha->host_no));
 688
 689                 ha->device_type |= DT_ISP2200A;
 690                 ha->fw_transfer_size = 128;
 691         }
 692
 693         /* Wrap Incoming Mailboxes Test. */
 694         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 695
 696         DEBUG3(printk("scsi(%ld): Checking mailboxes.\n", vha->host_no));
 697         rval = qla2x00_mbx_reg_test(vha);
 698         if (rval) {
 699                 DEBUG(printk("scsi(%ld): Failed mailbox send register test\n",
 700                     vha->host_no));
 701                 qla_printk(KERN_WARNING, ha,
 702                     "Failed mailbox send register test\n");
 703         }
 704         else {
 705                 /* Flag a successful rval */
 706                 rval = QLA_SUCCESS;
 707         }
 708         spin_lock_irqsave(&ha->hardware_lock, flags);
 709
 710 chip_diag_failed:
 711         if (rval)
 712                 DEBUG2_3(printk("scsi(%ld): Chip diagnostics **** FAILED "
 713                     "****\n", vha->host_no));
 714
 715         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 716
 717         return (rval);
 718 }
 719
 720 /**
 721  * qla24xx_chip_diag() - Test ISP24xx for proper operation.
 722  * @ha: HA context
 723  *
 724  * Returns 0 on success.
 725  */
 726 int
 727 qla24xx_chip_diag(scsi_qla_host_t *vha)
 728 {
 729         int rval;
 730         struct qla_hw_data *ha = vha->hw;
 731         struct req_que *req = ha->req_q_map[0];
 732
 733         /* Perform RISC reset. */
 734         qla24xx_reset_risc(vha);
 735
 736         ha->fw_transfer_size = REQUEST_ENTRY_SIZE * req->length;
 737
 738         rval = qla2x00_mbx_reg_test(vha);
 739         if (rval) {
 740                 DEBUG(printk("scsi(%ld): Failed mailbox send register test\n",
 741                     vha->host_no));
 742                 qla_printk(KERN_WARNING, ha,
 743                     "Failed mailbox send register test\n");
 744         } else {
 745                 /* Flag a successful rval */
 746                 rval = QLA_SUCCESS;
 747         }
 748
 749         return rval;
 750 }
 751
 752 void
 753 qla2x00_alloc_fw_dump(scsi_qla_host_t *vha)
 754 {
 755         int rval;
 756         uint32_t dump_size, fixed_size, mem_size, req_q_size, rsp_q_size,
 757             eft_size, fce_size, mq_size;
 758         dma_addr_t tc_dma;
 759         void *tc;
 760         struct qla_hw_data *ha = vha->hw;
 761         struct req_que *req = ha->req_q_map[0];
 762         struct rsp_que *rsp = ha->rsp_q_map[0];
 763
 764         if (ha->fw_dump) {
 765                 qla_printk(KERN_WARNING, ha,
 766                     "Firmware dump previously allocated.\n");
 767                 return;
 768         }
 769
 770         ha->fw_dumped = 0;
 771         fixed_size = mem_size = eft_size = fce_size = mq_size = 0;
 772         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
 773                 fixed_size = sizeof(struct qla2100_fw_dump);
 774         } else if (IS_QLA23XX(ha)) {
 775                 fixed_size = offsetof(struct qla2300_fw_dump, data_ram);
 776                 mem_size = (ha->fw_memory_size - 0x11000 + 1) *
 777                     sizeof(uint16_t);
 778         } else if (IS_FWI2_CAPABLE(ha)) {
 779                 if (IS_QLA81XX(ha))
 780                         fixed_size = offsetof(struct qla81xx_fw_dump, ext_mem);
 781                 else if (IS_QLA25XX(ha))
 782                         fixed_size = offsetof(struct qla25xx_fw_dump, ext_mem);
 783                 else
 784                         fixed_size = offsetof(struct qla24xx_fw_dump, ext_mem);
 785                 mem_size = (ha->fw_memory_size - 0x100000 + 1) *
 786                     sizeof(uint32_t);
 787                 if (ha->mqenable)
 788                         mq_size = sizeof(struct qla2xxx_mq_chain);
 789
 790                 /* Allocate memory for Fibre Channel Event Buffer. */
 791                 if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha))
 792                         goto try_eft;
 793
 794                 tc = dma_alloc_coherent(&ha->pdev->dev, FCE_SIZE, &tc_dma,
 795                     GFP_KERNEL);
 796                 if (!tc) {
 797                         qla_printk(KERN_WARNING, ha, "Unable to allocate "
 798                             "(%d KB) for FCE.\n", FCE_SIZE / 1024);
 799                         goto try_eft;
 800                 }
 801
 802                 memset(tc, 0, FCE_SIZE);
 803                 rval = qla2x00_enable_fce_trace(vha, tc_dma, FCE_NUM_BUFFERS,
 804                     ha->fce_mb, &ha->fce_bufs);
 805                 if (rval) {
 806                         qla_printk(KERN_WARNING, ha, "Unable to initialize "
 807                             "FCE (%d).\n", rval);
 808                         dma_free_coherent(&ha->pdev->dev, FCE_SIZE, tc,
 809                             tc_dma);
 810                         ha->flags.fce_enabled = 0;
 811                         goto try_eft;
 812                 }
 813
 814                 qla_printk(KERN_INFO, ha, "Allocated (%d KB) for FCE...\n",
 815                     FCE_SIZE / 1024);
 816
 817                 fce_size = sizeof(struct qla2xxx_fce_chain) + FCE_SIZE;
 818                 ha->flags.fce_enabled = 1;
 819                 ha->fce_dma = tc_dma;
 820                 ha->fce = tc;
 821 try_eft:
 822                 /* Allocate memory for Extended Trace Buffer. */
 823                 tc = dma_alloc_coherent(&ha->pdev->dev, EFT_SIZE, &tc_dma,
 824                     GFP_KERNEL);
 825                 if (!tc) {
 826                         qla_printk(KERN_WARNING, ha, "Unable to allocate "
 827                             "(%d KB) for EFT.\n", EFT_SIZE / 1024);
 828                         goto cont_alloc;
 829                 }
 830
 831                 memset(tc, 0, EFT_SIZE);
 832                 rval = qla2x00_enable_eft_trace(vha, tc_dma, EFT_NUM_BUFFERS);
 833                 if (rval) {
 834                         qla_printk(KERN_WARNING, ha, "Unable to initialize "
 835                             "EFT (%d).\n", rval);
 836                         dma_free_coherent(&ha->pdev->dev, EFT_SIZE, tc,
 837                             tc_dma);
 838                         goto cont_alloc;
 839                 }
 840
 841                 qla_printk(KERN_INFO, ha, "Allocated (%d KB) for EFT...\n",
 842                     EFT_SIZE / 1024);
 843
 844                 eft_size = EFT_SIZE;
 845                 ha->eft_dma = tc_dma;
 846                 ha->eft = tc;
 847         }
 848 cont_alloc:
 849         req_q_size = req->length * sizeof(request_t);
 850         rsp_q_size = rsp->length * sizeof(response_t);
 851
 852         dump_size = offsetof(struct qla2xxx_fw_dump, isp);
 853         dump_size += fixed_size + mem_size + req_q_size + rsp_q_size +
 854             eft_size;
 855         ha->chain_offset = dump_size;
 856         dump_size += mq_size + fce_size;
 857
 858         ha->fw_dump = vmalloc(dump_size);
 859         if (!ha->fw_dump) {
 860                 qla_printk(KERN_WARNING, ha, "Unable to allocate (%d KB) for "
 861                     "firmware dump!!!\n", dump_size / 1024);
 862
 863                 if (ha->eft) {
 864                         dma_free_coherent(&ha->pdev->dev, eft_size, ha->eft,
 865                             ha->eft_dma);
 866                         ha->eft = NULL;
 867                         ha->eft_dma = 0;
 868                 }
 869                 return;
 870         }
 871         qla_printk(KERN_INFO, ha, "Allocated (%d KB) for firmware dump...\n",
 872             dump_size / 1024);
 873
 874         ha->fw_dump_len = dump_size;
 875         ha->fw_dump->signature[0] = 'Q';
 876         ha->fw_dump->signature[1] = 'L';
 877         ha->fw_dump->signature[2] = 'G';
 878         ha->fw_dump->signature[3] = 'C';
 879         ha->fw_dump->version = __constant_htonl(1);
 880
 881         ha->fw_dump->fixed_size = htonl(fixed_size);
 882         ha->fw_dump->mem_size = htonl(mem_size);
 883         ha->fw_dump->req_q_size = htonl(req_q_size);
 884         ha->fw_dump->rsp_q_size = htonl(rsp_q_size);
 885
 886         ha->fw_dump->eft_size = htonl(eft_size);
 887         ha->fw_dump->eft_addr_l = htonl(LSD(ha->eft_dma));
 888         ha->fw_dump->eft_addr_h = htonl(MSD(ha->eft_dma));
 889
 890         ha->fw_dump->header_size =
 891             htonl(offsetof(struct qla2xxx_fw_dump, isp));
 892 }
 893
 894 /**
 895  * qla2x00_setup_chip() - Load and start RISC firmware.
 896  * @ha: HA context
 897  *
 898  * Returns 0 on success.
 899  */
 900 static int
 901 qla2x00_setup_chip(scsi_qla_host_t *vha)
 902 {
 903         int rval;
 904         uint32_t srisc_address = 0;
 905         struct qla_hw_data *ha = vha->hw;
 906         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 907         unsigned long flags;
 908         uint16_t fw_major_version;
 909
 910         if (!IS_FWI2_CAPABLE(ha) && !IS_QLA2100(ha) && !IS_QLA2200(ha)) {
 911                 /* Disable SRAM, Instruction RAM and GP RAM parity.  */
 912                 spin_lock_irqsave(&ha->hardware_lock, flags);
 913                 WRT_REG_WORD(&reg->hccr, (HCCR_ENABLE_PARITY + 0x0));
 914                 RD_REG_WORD(&reg->hccr);
 915                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 916         }
 917
 918         /* Load firmware sequences */
 919         rval = ha->isp_ops->load_risc(vha, &srisc_address);
 920         if (rval == QLA_SUCCESS) {
 921                 DEBUG(printk("scsi(%ld): Verifying Checksum of loaded RISC "
 922                     "code.\n", vha->host_no));
 923
 924                 rval = qla2x00_verify_checksum(vha, srisc_address);
 925                 if (rval == QLA_SUCCESS) {
 926                         /* Start firmware execution. */
 927                         DEBUG(printk("scsi(%ld): Checksum OK, start "
 928                             "firmware.\n", vha->host_no));
 929
 930                         rval = qla2x00_execute_fw(vha, srisc_address);
 931                         /* Retrieve firmware information. */
 932                         if (rval == QLA_SUCCESS) {
 933                                 fw_major_version = ha->fw_major_version;
 934                                 qla2x00_get_fw_version(vha,
 935                                     &ha->fw_major_version,
 936                                     &ha->fw_minor_version,
 937                                     &ha->fw_subminor_version,
 938                                     &ha->fw_attributes, &ha->fw_memory_size,
 939                                     ha->mpi_version, &ha->mpi_capabilities,
 940                                     ha->phy_version);
 941                                 ha->flags.npiv_supported = 0;
 942                                 if (IS_QLA2XXX_MIDTYPE(ha) &&
 943                                          (ha->fw_attributes & BIT_2)) {
 944                                         ha->flags.npiv_supported = 1;
 945                                         if ((!ha->max_npiv_vports) ||
 946                                             ((ha->max_npiv_vports + 1) %
 947                                             MIN_MULTI_ID_FABRIC))
 948                                                 ha->max_npiv_vports =
 949                                                     MIN_MULTI_ID_FABRIC - 1;
 950                                 }
 951                                 qla2x00_get_resource_cnts(vha, NULL,
 952                                     &ha->fw_xcb_count, NULL, NULL,
 953                                     &ha->max_npiv_vports);
 954
 955                                 if (!fw_major_version && ql2xallocfwdump)
 956                                         qla2x00_alloc_fw_dump(vha);
 957                         }
 958                 } else {
 959                         DEBUG2(printk(KERN_INFO
 960                             "scsi(%ld): ISP Firmware failed checksum.\n",
 961                             vha->host_no));
 962                 }
 963         }
 964
 965         if (!IS_FWI2_CAPABLE(ha) && !IS_QLA2100(ha) && !IS_QLA2200(ha)) {
 966                 /* Enable proper parity. */
 967                 spin_lock_irqsave(&ha->hardware_lock, flags);
 968                 if (IS_QLA2300(ha))
 969                         /* SRAM parity */
 970                         WRT_REG_WORD(&reg->hccr, HCCR_ENABLE_PARITY + 0x1);
 971                 else
 972                         /* SRAM, Instruction RAM and GP RAM parity */
 973                         WRT_REG_WORD(&reg->hccr, HCCR_ENABLE_PARITY + 0x7);
 974                 RD_REG_WORD(&reg->hccr);
 975                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 976         }
 977
 978         if (rval == QLA_SUCCESS && IS_FAC_REQUIRED(ha)) {
 979                 uint32_t size;
 980
 981                 rval = qla81xx_fac_get_sector_size(vha, &size);
 982                 if (rval == QLA_SUCCESS) {
 983                         ha->flags.fac_supported = 1;
 984                         ha->fdt_block_size = size << 2;
 985                 } else {
 986                         qla_printk(KERN_ERR, ha,
 987                             "Unsupported FAC firmware (%d.%02d.%02d).\n",
 988                             ha->fw_major_version, ha->fw_minor_version,
 989                             ha->fw_subminor_version);
 990                 }
 991         }
 992
 993         if (rval) {
 994                 DEBUG2_3(printk("scsi(%ld): Setup chip **** FAILED ****.\n",
 995                     vha->host_no));
 996         }
 997
 998         return (rval);
 999 }
1000
1001 /**
1002  * qla2x00_init_response_q_entries() - Initializes response queue entries.
1003  * @ha: HA context
1004  *
1005  * Beginning of request ring has initialization control block already built
1006  * by nvram config routine.
1007  *
1008  * Returns 0 on success.
1009  */
1010 void
1011 qla2x00_init_response_q_entries(struct rsp_que *rsp)
1012 {
1013         uint16_t cnt;
1014         response_t *pkt;
1015
1016         pkt = rsp->ring_ptr;
1017         for (cnt = 0; cnt < rsp->length; cnt++) {
1018                 pkt->signature = RESPONSE_PROCESSED;
1019                 pkt++;
1020         }
1021
1022 }
1023
1024 /**
1025  * qla2x00_update_fw_options() - Read and process firmware options.
1026  * @ha: HA context
1027  *
1028  * Returns 0 on success.
1029  */
1030 void
1031 qla2x00_update_fw_options(scsi_qla_host_t *vha)
1032 {
1033         uint16_t swing, emphasis, tx_sens, rx_sens;
1034         struct qla_hw_data *ha = vha->hw;
1035
1036         memset(ha->fw_options, 0, sizeof(ha->fw_options));
1037         qla2x00_get_fw_options(vha, ha->fw_options);
1038
1039         if (IS_QLA2100(ha) || IS_QLA2200(ha))
1040                 return;
1041
1042         /* Serial Link options. */
1043         DEBUG3(printk("scsi(%ld): Serial link options:\n",
1044             vha->host_no));
1045         DEBUG3(qla2x00_dump_buffer((uint8_t *)&ha->fw_seriallink_options,
1046             sizeof(ha->fw_seriallink_options)));
1047
1048         ha->fw_options[1] &= ~FO1_SET_EMPHASIS_SWING;
1049         if (ha->fw_seriallink_options[3] & BIT_2) {
1050                 ha->fw_options[1] |= FO1_SET_EMPHASIS_SWING;
1051
1052                 /*  1G settings */
1053                 swing = ha->fw_seriallink_options[2] & (BIT_2 | BIT_1 | BIT_0);
1054                 emphasis = (ha->fw_seriallink_options[2] &
1055                     (BIT_4 | BIT_3)) >> 3;
1056                 tx_sens = ha->fw_seriallink_options[0] &
1057                     (BIT_3 | BIT_2 | BIT_1 | BIT_0);
1058                 rx_sens = (ha->fw_seriallink_options[0] &
1059                     (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
1060                 ha->fw_options[10] = (emphasis << 14) | (swing << 8);
1061                 if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
1062                         if (rx_sens == 0x0)
1063                                 rx_sens = 0x3;
1064                         ha->fw_options[10] |= (tx_sens << 4) | rx_sens;
1065                 } else if (IS_QLA2322(ha) || IS_QLA6322(ha))
1066                         ha->fw_options[10] |= BIT_5 |
1067                             ((rx_sens & (BIT_1 | BIT_0)) << 2) |
1068                             (tx_sens & (BIT_1 | BIT_0));
1069
1070                 /*  2G settings */
1071                 swing = (ha->fw_seriallink_options[2] &
1072                     (BIT_7 | BIT_6 | BIT_5)) >> 5;
1073                 emphasis = ha->fw_seriallink_options[3] & (BIT_1 | BIT_0);
1074                 tx_sens = ha->fw_seriallink_options[1] &
1075                     (BIT_3 | BIT_2 | BIT_1 | BIT_0);
1076                 rx_sens = (ha->fw_seriallink_options[1] &
1077                     (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
1078                 ha->fw_options[11] = (emphasis << 14) | (swing << 8);
1079                 if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
1080                         if (rx_sens == 0x0)
1081                                 rx_sens = 0x3;
1082                         ha->fw_options[11] |= (tx_sens << 4) | rx_sens;
1083                 } else if (IS_QLA2322(ha) || IS_QLA6322(ha))
1084                         ha->fw_options[11] |= BIT_5 |
1085                             ((rx_sens & (BIT_1 | BIT_0)) << 2) |
1086                             (tx_sens & (BIT_1 | BIT_0));
1087         }
1088
1089         /* FCP2 options. */
1090         /*  Return command IOCBs without waiting for an ABTS to complete. */
1091         ha->fw_options[3] |= BIT_13;
1092
1093         /* LED scheme. */
1094         if (ha->flags.enable_led_scheme)
1095                 ha->fw_options[2] |= BIT_12;
1096
1097         /* Detect ISP6312. */
1098         if (IS_QLA6312(ha))
1099                 ha->fw_options[2] |= BIT_13;
1100
1101         /* Update firmware options. */
1102         qla2x00_set_fw_options(vha, ha->fw_options);
1103 }
1104
1105 void
1106 qla24xx_update_fw_options(scsi_qla_host_t *vha)
1107 {
1108         int rval;
1109         struct qla_hw_data *ha = vha->hw;
1110
1111         /* Update Serial Link options. */
1112         if ((le16_to_cpu(ha->fw_seriallink_options24[0]) & BIT_0) == 0)
1113                 return;
1114
1115         rval = qla2x00_set_serdes_params(vha,
1116             le16_to_cpu(ha->fw_seriallink_options24[1]),
1117             le16_to_cpu(ha->fw_seriallink_options24[2]),
1118             le16_to_cpu(ha->fw_seriallink_options24[3]));
1119         if (rval != QLA_SUCCESS) {
1120                 qla_printk(KERN_WARNING, ha,
1121                     "Unable to update Serial Link options (%x).\n", rval);
1122         }
1123 }
1124
1125 void
1126 qla2x00_config_rings(struct scsi_qla_host *vha)
1127 {
1128         struct qla_hw_data *ha = vha->hw;
1129         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1130         struct req_que *req = ha->req_q_map[0];
1131         struct rsp_que *rsp = ha->rsp_q_map[0];
1132
1133         /* Setup ring parameters in initialization control block. */
1134         ha->init_cb->request_q_outpointer = __constant_cpu_to_le16(0);
1135         ha->init_cb->response_q_inpointer = __constant_cpu_to_le16(0);
1136         ha->init_cb->request_q_length = cpu_to_le16(req->length);
1137         ha->init_cb->response_q_length = cpu_to_le16(rsp->length);
1138         ha->init_cb->request_q_address[0] = cpu_to_le32(LSD(req->dma));
1139         ha->init_cb->request_q_address[1] = cpu_to_le32(MSD(req->dma));
1140         ha->init_cb->response_q_address[0] = cpu_to_le32(LSD(rsp->dma));
1141         ha->init_cb->response_q_address[1] = cpu_to_le32(MSD(rsp->dma));
1142
1143         WRT_REG_WORD(ISP_REQ_Q_IN(ha, reg), 0);
1144         WRT_REG_WORD(ISP_REQ_Q_OUT(ha, reg), 0);
1145         WRT_REG_WORD(ISP_RSP_Q_IN(ha, reg), 0);
1146         WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), 0);
1147         RD_REG_WORD(ISP_RSP_Q_OUT(ha, reg));            /* PCI Posting. */
1148 }
1149
1150 void
1151 qla24xx_config_rings(struct scsi_qla_host *vha)
1152 {
1153         struct qla_hw_data *ha = vha->hw;
1154         device_reg_t __iomem *reg = ISP_QUE_REG(ha, 0);
1155         struct device_reg_2xxx __iomem *ioreg = &ha->iobase->isp;
1156         struct qla_msix_entry *msix;
1157         struct init_cb_24xx *icb;
1158         uint16_t rid = 0;
1159         struct req_que *req = ha->req_q_map[0];
1160         struct rsp_que *rsp = ha->rsp_q_map[0];
1161
1162 /* Setup ring parameters in initialization control block. */
1163         icb = (struct init_cb_24xx *)ha->init_cb;
1164         icb->request_q_outpointer = __constant_cpu_to_le16(0);
1165         icb->response_q_inpointer = __constant_cpu_to_le16(0);
1166         icb->request_q_length = cpu_to_le16(req->length);
1167         icb->response_q_length = cpu_to_le16(rsp->length);
1168         icb->request_q_address[0] = cpu_to_le32(LSD(req->dma));
1169         icb->request_q_address[1] = cpu_to_le32(MSD(req->dma));
1170         icb->response_q_address[0] = cpu_to_le32(LSD(rsp->dma));
1171         icb->response_q_address[1] = cpu_to_le32(MSD(rsp->dma));
1172
1173         if (ha->mqenable) {
1174                 icb->qos = __constant_cpu_to_le16(QLA_DEFAULT_QUE_QOS);
1175                 icb->rid = __constant_cpu_to_le16(rid);
1176                 if (ha->flags.msix_enabled) {
1177                         msix = &ha->msix_entries[1];
1178                         DEBUG2_17(printk(KERN_INFO
1179                         "Reistering vector 0x%x for base que\n", msix->entry));
1180                         icb->msix = cpu_to_le16(msix->entry);
1181                 }
1182                 /* Use alternate PCI bus number */
1183                 if (MSB(rid))
1184                         icb->firmware_options_2 |=
1185                                 __constant_cpu_to_le32(BIT_19);
1186                 /* Use alternate PCI devfn */
1187                 if (LSB(rid))
1188                         icb->firmware_options_2 |=
1189                                 __constant_cpu_to_le32(BIT_18);
1190
1191                 icb->firmware_options_2 &= __constant_cpu_to_le32(~BIT_22);
1192                 icb->firmware_options_2 |= __constant_cpu_to_le32(BIT_23);
1193
1194                 WRT_REG_DWORD(&reg->isp25mq.req_q_in, 0);
1195                 WRT_REG_DWORD(&reg->isp25mq.req_q_out, 0);
1196                 WRT_REG_DWORD(&reg->isp25mq.rsp_q_in, 0);
1197                 WRT_REG_DWORD(&reg->isp25mq.rsp_q_out, 0);
1198         } else {
1199                 WRT_REG_DWORD(&reg->isp24.req_q_in, 0);
1200                 WRT_REG_DWORD(&reg->isp24.req_q_out, 0);
1201                 WRT_REG_DWORD(&reg->isp24.rsp_q_in, 0);
1202                 WRT_REG_DWORD(&reg->isp24.rsp_q_out, 0);
1203         }
1204         /* PCI posting */
1205         RD_REG_DWORD(&ioreg->hccr);
1206 }
1207
1208 /**
1209  * qla2x00_init_rings() - Initializes firmware.
1210  * @ha: HA context
1211  *
1212  * Beginning of request ring has initialization control block already built
1213  * by nvram config routine.
1214  *
1215  * Returns 0 on success.
1216  */
1217 static int
1218 qla2x00_init_rings(scsi_qla_host_t *vha)
1219 {
1220         int     rval;
1221         unsigned long flags = 0;
1222         int cnt, que;
1223         struct qla_hw_data *ha = vha->hw;
1224         struct req_que *req;
1225         struct rsp_que *rsp;
1226         struct scsi_qla_host *vp;
1227         struct mid_init_cb_24xx *mid_init_cb =
1228             (struct mid_init_cb_24xx *) ha->init_cb;
1229
1230         spin_lock_irqsave(&ha->hardware_lock, flags);
1231
1232         /* Clear outstanding commands array. */
1233         for (que = 0; que < ha->max_queues; que++) {
1234                 req = ha->req_q_map[que];
1235                 if (!req)
1236                         continue;
1237                 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++)
1238                         req->outstanding_cmds[cnt] = NULL;
1239
1240                 req->current_outstanding_cmd = 0;
1241
1242                 /* Initialize firmware. */
1243                 req->ring_ptr  = req->ring;
1244                 req->ring_index    = 0;
1245                 req->cnt      = req->length;
1246         }
1247
1248         for (que = 0; que < ha->max_queues; que++) {
1249                 rsp = ha->rsp_q_map[que];
1250                 if (!rsp)
1251                         continue;
1252                 rsp->ring_ptr = rsp->ring;
1253                 rsp->ring_index    = 0;
1254
1255                 /* Initialize response queue entries */
1256                 qla2x00_init_response_q_entries(rsp);
1257         }
1258
1259         /* Clear RSCN queue. */
1260         list_for_each_entry(vp, &ha->vp_list, list) {
1261                 vp->rscn_in_ptr = 0;
1262                 vp->rscn_out_ptr = 0;
1263         }
1264         ha->isp_ops->config_rings(vha);
1265
1266         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1267
1268         /* Update any ISP specific firmware options before initialization. */
1269         ha->isp_ops->update_fw_options(vha);
1270
1271         DEBUG(printk("scsi(%ld): Issue init firmware.\n", vha->host_no));
1272
1273         if (ha->flags.npiv_supported) {
1274                 if (ha->operating_mode == LOOP)
1275                         ha->max_npiv_vports = MIN_MULTI_ID_FABRIC - 1;
1276                 mid_init_cb->count = cpu_to_le16(ha->max_npiv_vports);
1277         }
1278
1279         if (IS_FWI2_CAPABLE(ha)) {
1280                 mid_init_cb->options = __constant_cpu_to_le16(BIT_1);
1281                 mid_init_cb->init_cb.execution_throttle =
1282                     cpu_to_le16(ha->fw_xcb_count);
1283         }
1284
1285         rval = qla2x00_init_firmware(vha, ha->init_cb_size);
1286         if (rval) {
1287                 DEBUG2_3(printk("scsi(%ld): Init firmware **** FAILED ****.\n",
1288                     vha->host_no));
1289         } else {
1290                 DEBUG3(printk("scsi(%ld): Init firmware -- success.\n",
1291                     vha->host_no));
1292         }
1293
1294         return (rval);
1295 }
1296
1297 /**
1298  * qla2x00_fw_ready() - Waits for firmware ready.
1299  * @ha: HA context
1300  *
1301  * Returns 0 on success.
1302  */
1303 static int
1304 qla2x00_fw_ready(scsi_qla_host_t *vha)
1305 {
1306         int             rval;
1307         unsigned long   wtime, mtime, cs84xx_time;
1308         uint16_t        min_wait;       /* Minimum wait time if loop is down */
1309         uint16_t        wait_time;      /* Wait time if loop is coming ready */
1310         uint16_t        state[3];
1311         struct qla_hw_data *ha = vha->hw;
1312
1313         rval = QLA_SUCCESS;
1314
1315         /* 20 seconds for loop down. */
1316         min_wait = 20;
1317
1318         /*
1319          * Firmware should take at most one RATOV to login, plus 5 seconds for
1320          * our own processing.
1321          */
1322         if ((wait_time = (ha->retry_count*ha->login_timeout) + 5) < min_wait) {
1323                 wait_time = min_wait;
1324         }
1325
1326         /* Min wait time if loop down */
1327         mtime = jiffies + (min_wait * HZ);
1328
1329         /* wait time before firmware ready */
1330         wtime = jiffies + (wait_time * HZ);
1331
1332         /* Wait for ISP to finish LIP */
1333         if (!vha->flags.init_done)
1334                 qla_printk(KERN_INFO, ha, "Waiting for LIP to complete...\n");
1335
1336         DEBUG3(printk("scsi(%ld): Waiting for LIP to complete...\n",
1337             vha->host_no));
1338
1339         do {
1340                 rval = qla2x00_get_firmware_state(vha, state);
1341                 if (rval == QLA_SUCCESS) {
1342                         if (state[0] < FSTATE_LOSS_OF_SYNC) {
1343                                 vha->device_flags &= ~DFLG_NO_CABLE;
1344                         }
1345                         if (IS_QLA84XX(ha) && state[0] != FSTATE_READY) {
1346                                 DEBUG16(printk("scsi(%ld): fw_state=%x "
1347                                     "84xx=%x.\n", vha->host_no, state[0],
1348                                     state[2]));
1349                                 if ((state[2] & FSTATE_LOGGED_IN) &&
1350                                      (state[2] & FSTATE_WAITING_FOR_VERIFY)) {
1351                                         DEBUG16(printk("scsi(%ld): Sending "
1352                                             "verify iocb.\n", vha->host_no));
1353
1354                                         cs84xx_time = jiffies;
1355                                         rval = qla84xx_init_chip(vha);
1356                                         if (rval != QLA_SUCCESS)
1357                                                 break;
1358
1359                                         /* Add time taken to initialize. */
1360                                         cs84xx_time = jiffies - cs84xx_time;
1361                                         wtime += cs84xx_time;
1362                                         mtime += cs84xx_time;
1363                                         DEBUG16(printk("scsi(%ld): Increasing "
1364                                             "wait time by %ld. New time %ld\n",
1365                                             vha->host_no, cs84xx_time, wtime));
1366                                 }
1367                         } else if (state[0] == FSTATE_READY) {
1368                                 DEBUG(printk("scsi(%ld): F/W Ready - OK \n",
1369                                     vha->host_no));
1370
1371                                 qla2x00_get_retry_cnt(vha, &ha->retry_count,
1372                                     &ha->login_timeout, &ha->r_a_tov);
1373
1374                                 rval = QLA_SUCCESS;
1375                                 break;
1376                         }
1377
1378                         rval = QLA_FUNCTION_FAILED;
1379
1380                         if (atomic_read(&vha->loop_down_timer) &&
1381                             state[0] != FSTATE_READY) {
1382                                 /* Loop down. Timeout on min_wait for states
1383                                  * other than Wait for Login.
1384                                  */
1385                                 if (time_after_eq(jiffies, mtime)) {
1386                                         qla_printk(KERN_INFO, ha,
1387                                             "Cable is unplugged...\n");
1388
1389                                         vha->device_flags |= DFLG_NO_CABLE;
1390                                         break;
1391                                 }
1392                         }
1393                 } else {
1394                         /* Mailbox cmd failed. Timeout on min_wait. */
1395                         if (time_after_eq(jiffies, mtime))
1396                                 break;
1397                 }
1398
1399                 if (time_after_eq(jiffies, wtime))
1400                         break;
1401
1402                 /* Delay for a while */
1403                 msleep(500);
1404
1405                 DEBUG3(printk("scsi(%ld): fw_state=%x curr time=%lx.\n",
1406                     vha->host_no, state[0], jiffies));
1407         } while (1);
1408
1409         DEBUG(printk("scsi(%ld): fw_state=%x curr time=%lx.\n",
1410             vha->host_no, state[0], jiffies));
1411
1412         if (rval) {
1413                 DEBUG2_3(printk("scsi(%ld): Firmware ready **** FAILED ****.\n",
1414                     vha->host_no));
1415         }
1416
1417         return (rval);
1418 }
1419
1420 /*
1421 *  qla2x00_configure_hba
1422 *      Setup adapter context.
1423 *
1424 * Input:
1425 *      ha = adapter state pointer.
1426 *
1427 * Returns:
1428 *      0 = success
1429 *
1430 * Context:
1431 *      Kernel context.
1432 */
1433 static int
1434 qla2x00_configure_hba(scsi_qla_host_t *vha)
1435 {
1436         int       rval;
1437         uint16_t      loop_id;
1438         uint16_t      topo;
1439         uint16_t      sw_cap;
1440         uint8_t       al_pa;
1441         uint8_t       area;
1442         uint8_t       domain;
1443         char            connect_type[22];
1444         struct qla_hw_data *ha = vha->hw;
1445
1446         /* Get host addresses. */
1447         rval = qla2x00_get_adapter_id(vha,
1448             &loop_id, &al_pa, &area, &domain, &topo, &sw_cap);
1449         if (rval != QLA_SUCCESS) {
1450                 if (LOOP_TRANSITION(vha) || atomic_read(&ha->loop_down_timer) ||
1451                     (rval == QLA_COMMAND_ERROR && loop_id == 0x7)) {
1452                         DEBUG2(printk("%s(%ld) Loop is in a transition state\n",
1453                             __func__, vha->host_no));
1454                 } else {
1455                         qla_printk(KERN_WARNING, ha,
1456                             "ERROR -- Unable to get host loop ID.\n");
1457                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1458                 }
1459                 return (rval);
1460         }
1461
1462         if (topo == 4) {
1463                 qla_printk(KERN_INFO, ha,
1464                         "Cannot get topology - retrying.\n");
1465                 return (QLA_FUNCTION_FAILED);
1466         }
1467
1468         vha->loop_id = loop_id;
1469
1470         /* initialize */
1471         ha->min_external_loopid = SNS_FIRST_LOOP_ID;
1472         ha->operating_mode = LOOP;
1473         ha->switch_cap = 0;
1474
1475         switch (topo) {
1476         case 0:
1477                 DEBUG3(printk("scsi(%ld): HBA in NL topology.\n",
1478                     vha->host_no));
1479                 ha->current_topology = ISP_CFG_NL;
1480                 strcpy(connect_type, "(Loop)");
1481                 break;
1482
1483         case 1:
1484                 DEBUG3(printk("scsi(%ld): HBA in FL topology.\n",
1485                     vha->host_no));
1486                 ha->switch_cap = sw_cap;
1487                 ha->current_topology = ISP_CFG_FL;
1488                 strcpy(connect_type, "(FL_Port)");
1489                 break;
1490
1491         case 2:
1492                 DEBUG3(printk("scsi(%ld): HBA in N P2P topology.\n",
1493                     vha->host_no));
1494                 ha->operating_mode = P2P;
1495                 ha->current_topology = ISP_CFG_N;
1496                 strcpy(connect_type, "(N_Port-to-N_Port)");
1497                 break;
1498
1499         case 3:
1500                 DEBUG3(printk("scsi(%ld): HBA in F P2P topology.\n",
1501                     vha->host_no));
1502                 ha->switch_cap = sw_cap;
1503                 ha->operating_mode = P2P;
1504                 ha->current_topology = ISP_CFG_F;
1505                 strcpy(connect_type, "(F_Port)");
1506                 break;
1507
1508         default:
1509                 DEBUG3(printk("scsi(%ld): HBA in unknown topology %x. "
1510                     "Using NL.\n",
1511                     vha->host_no, topo));
1512                 ha->current_topology = ISP_CFG_NL;
1513                 strcpy(connect_type, "(Loop)");
1514                 break;
1515         }
1516
1517         /* Save Host port and loop ID. */
1518         /* byte order - Big Endian */
1519         vha->d_id.b.domain = domain;
1520         vha->d_id.b.area = area;
1521         vha->d_id.b.al_pa = al_pa;
1522
1523         if (!vha->flags.init_done)
1524                 qla_printk(KERN_INFO, ha,
1525                     "Topology - %s, Host Loop address 0x%x\n",
1526                     connect_type, vha->loop_id);
1527
1528         if (rval) {
1529                 DEBUG2_3(printk("scsi(%ld): FAILED.\n", vha->host_no));
1530         } else {
1531                 DEBUG3(printk("scsi(%ld): exiting normally.\n", vha->host_no));
1532         }
1533
1534         return(rval);
1535 }
1536
1537 static inline void
1538 qla2x00_set_model_info(scsi_qla_host_t *vha, uint8_t *model, size_t len,
1539         char *def)
1540 {
1541         char *st, *en;
1542         uint16_t index;
1543         struct qla_hw_data *ha = vha->hw;
1544
1545         if (memcmp(model, BINZERO, len) != 0) {
1546                 strncpy(ha->model_number, model, len);
1547                 st = en = ha->model_number;
1548                 en += len - 1;
1549                 while (en > st) {
1550                         if (*en != 0x20 && *en != 0x00)
1551                                 break;
1552                         *en-- = '\0';
1553                 }
1554
1555                 index = (ha->pdev->subsystem_device & 0xff);
1556                 if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_QLOGIC &&
1557                     index < QLA_MODEL_NAMES)
1558                         strncpy(ha->model_desc,
1559                             qla2x00_model_name[index * 2 + 1],
1560                             sizeof(ha->model_desc) - 1);
1561         } else {
1562                 index = (ha->pdev->subsystem_device & 0xff);
1563                 if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_QLOGIC &&
1564                     index < QLA_MODEL_NAMES) {
1565                         strcpy(ha->model_number,
1566                             qla2x00_model_name[index * 2]);
1567                         strncpy(ha->model_desc,
1568                             qla2x00_model_name[index * 2 + 1],
1569                             sizeof(ha->model_desc) - 1);
1570                 } else {
1571                         strcpy(ha->model_number, def);
1572                 }
1573         }
1574         if (IS_FWI2_CAPABLE(ha))
1575                 qla2xxx_get_vpd_field(vha, "\x82", ha->model_desc,
1576                     sizeof(ha->model_desc));
1577 }
1578
1579 /* On sparc systems, obtain port and node WWN from firmware
1580  * properties.
1581  */
1582 static void qla2xxx_nvram_wwn_from_ofw(scsi_qla_host_t *vha, nvram_t *nv)
1583 {
1584 #ifdef CONFIG_SPARC
1585         struct qla_hw_data *ha = vha->hw;
1586         struct pci_dev *pdev = ha->pdev;
1587         struct device_node *dp = pci_device_to_OF_node(pdev);
1588         const u8 *val;
1589         int len;
1590
1591         val = of_get_property(dp, "port-wwn", &len);
1592         if (val && len >= WWN_SIZE)
1593                 memcpy(nv->port_name, val, WWN_SIZE);
1594
1595         val = of_get_property(dp, "node-wwn", &len);
1596         if (val && len >= WWN_SIZE)
1597                 memcpy(nv->node_name, val, WWN_SIZE);
1598 #endif
1599 }
1600
1601 /*
1602 * NVRAM configuration for ISP 2xxx
1603 *
1604 * Input:
1605 *      ha                = adapter block pointer.
1606 *
1607 * Output:
1608 *      initialization control block in response_ring
1609 *      host adapters parameters in host adapter block
1610 *
1611 * Returns:
1612 *      0 = success.
1613 */
1614 int
1615 qla2x00_nvram_config(scsi_qla_host_t *vha)
1616 {
1617         int             rval;
1618         uint8_t         chksum = 0;
1619         uint16_t        cnt;
1620         uint8_t         *dptr1, *dptr2;
1621         struct qla_hw_data *ha = vha->hw;
1622         init_cb_t       *icb = ha->init_cb;
1623         nvram_t         *nv = ha->nvram;
1624         uint8_t         *ptr = ha->nvram;
1625         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1626
1627         rval = QLA_SUCCESS;
1628
1629         /* Determine NVRAM starting address. */
1630         ha->nvram_size = sizeof(nvram_t);
1631         ha->nvram_base = 0;
1632         if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA2300(ha))
1633                 if ((RD_REG_WORD(&reg->ctrl_status) >> 14) == 1)
1634                         ha->nvram_base = 0x80;
1635
1636         /* Get NVRAM data and calculate checksum. */
1637         ha->isp_ops->read_nvram(vha, ptr, ha->nvram_base, ha->nvram_size);
1638         for (cnt = 0, chksum = 0; cnt < ha->nvram_size; cnt++)
1639                 chksum += *ptr++;
1640
1641         DEBUG5(printk("scsi(%ld): Contents of NVRAM\n", vha->host_no));
1642         DEBUG5(qla2x00_dump_buffer((uint8_t *)nv, ha->nvram_size));
1643
1644         /* Bad NVRAM data, set defaults parameters. */
1645         if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' ||
1646             nv->id[2] != 'P' || nv->id[3] != ' ' || nv->nvram_version < 1) {
1647                 /* Reset NVRAM data. */
1648                 qla_printk(KERN_WARNING, ha, "Inconsistent NVRAM detected: "
1649                     "checksum=0x%x id=%c version=0x%x.\n", chksum, nv->id[0],
1650                     nv->nvram_version);
1651                 qla_printk(KERN_WARNING, ha, "Falling back to functioning (yet "
1652                     "invalid -- WWPN) defaults.\n");
1653
1654                 /*
1655                  * Set default initialization control block.
1656                  */
1657                 memset(nv, 0, ha->nvram_size);
1658                 nv->parameter_block_version = ICB_VERSION;
1659
1660                 if (IS_QLA23XX(ha)) {
1661                         nv->firmware_options[0] = BIT_2 | BIT_1;
1662                         nv->firmware_options[1] = BIT_7 | BIT_5;
1663                         nv->add_firmware_options[0] = BIT_5;
1664                         nv->add_firmware_options[1] = BIT_5 | BIT_4;
1665                         nv->frame_payload_size = __constant_cpu_to_le16(2048);
1666                         nv->special_options[1] = BIT_7;
1667                 } else if (IS_QLA2200(ha)) {
1668                         nv->firmware_options[0] = BIT_2 | BIT_1;
1669                         nv->firmware_options[1] = BIT_7 | BIT_5;
1670                         nv->add_firmware_options[0] = BIT_5;
1671                         nv->add_firmware_options[1] = BIT_5 | BIT_4;
1672                         nv->frame_payload_size = __constant_cpu_to_le16(1024);
1673                 } else if (IS_QLA2100(ha)) {
1674                         nv->firmware_options[0] = BIT_3 | BIT_1;
1675                         nv->firmware_options[1] = BIT_5;
1676                         nv->frame_payload_size = __constant_cpu_to_le16(1024);
1677                 }
1678
1679                 nv->max_iocb_allocation = __constant_cpu_to_le16(256);
1680                 nv->execution_throttle = __constant_cpu_to_le16(16);
1681                 nv->retry_count = 8;
1682                 nv->retry_delay = 1;
1683
1684                 nv->port_name[0] = 33;
1685                 nv->port_name[3] = 224;
1686                 nv->port_name[4] = 139;
1687
1688                 qla2xxx_nvram_wwn_from_ofw(vha, nv);
1689
1690                 nv->login_timeout = 4;
1691
1692                 /*
1693                  * Set default host adapter parameters
1694                  */
1695                 nv->host_p[1] = BIT_2;
1696                 nv->reset_delay = 5;
1697                 nv->port_down_retry_count = 8;
1698                 nv->max_luns_per_target = __constant_cpu_to_le16(8);
1699                 nv->link_down_timeout = 60;
1700
1701                 rval = 1;
1702         }
1703
1704 #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
1705         /*
1706          * The SN2 does not provide BIOS emulation which means you can't change
1707          * potentially bogus BIOS settings. Force the use of default settings
1708          * for link rate and frame size.  Hope that the rest of the settings
1709          * are valid.
1710          */
1711         if (ia64_platform_is("sn2")) {
1712                 nv->frame_payload_size = __constant_cpu_to_le16(2048);
1713                 if (IS_QLA23XX(ha))
1714                         nv->special_options[1] = BIT_7;
1715         }
1716 #endif
1717
1718         /* Reset Initialization control block */
1719         memset(icb, 0, ha->init_cb_size);
1720
1721         /*
1722          * Setup driver NVRAM options.
1723          */
1724         nv->firmware_options[0] |= (BIT_6 | BIT_1);
1725         nv->firmware_options[0] &= ~(BIT_5 | BIT_4);
1726         nv->firmware_options[1] |= (BIT_5 | BIT_0);
1727         nv->firmware_options[1] &= ~BIT_4;
1728
1729         if (IS_QLA23XX(ha)) {
1730                 nv->firmware_options[0] |= BIT_2;
1731                 nv->firmware_options[0] &= ~BIT_3;
1732                 nv->add_firmware_options[1] |= BIT_5 | BIT_4;
1733
1734                 if (IS_QLA2300(ha)) {
1735                         if (ha->fb_rev == FPM_2310) {
1736                                 strcpy(ha->model_number, "QLA2310");
1737                         } else {
1738                                 strcpy(ha->model_number, "QLA2300");
1739                         }
1740                 } else {
1741                         qla2x00_set_model_info(vha, nv->model_number,
1742                             sizeof(nv->model_number), "QLA23xx");
1743                 }
1744         } else if (IS_QLA2200(ha)) {
1745                 nv->firmware_options[0] |= BIT_2;
1746                 /*
1747                  * 'Point-to-point preferred, else loop' is not a safe
1748                  * connection mode setting.
1749                  */
1750                 if ((nv->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) ==
1751                     (BIT_5 | BIT_4)) {
1752                         /* Force 'loop preferred, else point-to-point'. */
1753                         nv->add_firmware_options[0] &= ~(BIT_6 | BIT_5 | BIT_4);
1754                         nv->add_firmware_options[0] |= BIT_5;
1755                 }
1756                 strcpy(ha->model_number, "QLA22xx");
1757         } else /*if (IS_QLA2100(ha))*/ {
1758                 strcpy(ha->model_number, "QLA2100");
1759         }
1760
1761         /*
1762          * Copy over NVRAM RISC parameter block to initialization control block.
1763          */
1764         dptr1 = (uint8_t *)icb;
1765         dptr2 = (uint8_t *)&nv->parameter_block_version;
1766         cnt = (uint8_t *)&icb->request_q_outpointer - (uint8_t *)&icb->version;
1767         while (cnt--)
1768                 *dptr1++ = *dptr2++;
1769
1770         /* Copy 2nd half. */
1771         dptr1 = (uint8_t *)icb->add_firmware_options;
1772         cnt = (uint8_t *)icb->reserved_3 - (uint8_t *)icb->add_firmware_options;
1773         while (cnt--)
1774                 *dptr1++ = *dptr2++;
1775
1776         /* Use alternate WWN? */
1777         if (nv->host_p[1] & BIT_7) {
1778                 memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
1779                 memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
1780         }
1781
1782         /* Prepare nodename */
1783         if ((icb->firmware_options[1] & BIT_6) == 0) {
1784                 /*
1785                  * Firmware will apply the following mask if the nodename was
1786                  * not provided.
1787                  */
1788                 memcpy(icb->node_name, icb->port_name, WWN_SIZE);
1789                 icb->node_name[0] &= 0xF0;
1790         }
1791
1792         /*
1793          * Set host adapter parameters.
1794          */
1795         if (nv->host_p[0] & BIT_7)
1796                 ql2xextended_error_logging = 1;
1797         ha->flags.disable_risc_code_load = ((nv->host_p[0] & BIT_4) ? 1 : 0);
1798         /* Always load RISC code on non ISP2[12]00 chips. */
1799         if (!IS_QLA2100(ha) && !IS_QLA2200(ha))
1800                 ha->flags.disable_risc_code_load = 0;
1801         ha->flags.enable_lip_reset = ((nv->host_p[1] & BIT_1) ? 1 : 0);
1802         ha->flags.enable_lip_full_login = ((nv->host_p[1] & BIT_2) ? 1 : 0);
1803         ha->flags.enable_target_reset = ((nv->host_p[1] & BIT_3) ? 1 : 0);
1804         ha->flags.enable_led_scheme = (nv->special_options[1] & BIT_4) ? 1 : 0;
1805         ha->flags.disable_serdes = 0;
1806
1807         ha->operating_mode =
1808             (icb->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) >> 4;
1809
1810         memcpy(ha->fw_seriallink_options, nv->seriallink_options,
1811             sizeof(ha->fw_seriallink_options));
1812
1813         /* save HBA serial number */
1814         ha->serial0 = icb->port_name[5];
1815         ha->serial1 = icb->port_name[6];
1816         ha->serial2 = icb->port_name[7];
1817         memcpy(vha->node_name, icb->node_name, WWN_SIZE);
1818         memcpy(vha->port_name, icb->port_name, WWN_SIZE);
1819
1820         icb->execution_throttle = __constant_cpu_to_le16(0xFFFF);
1821
1822         ha->retry_count = nv->retry_count;
1823
1824         /* Set minimum login_timeout to 4 seconds. */
1825         if (nv->login_timeout < ql2xlogintimeout)
1826                 nv->login_timeout = ql2xlogintimeout;
1827         if (nv->login_timeout < 4)
1828                 nv->login_timeout = 4;
1829         ha->login_timeout = nv->login_timeout;
1830         icb->login_timeout = nv->login_timeout;
1831
1832         /* Set minimum RATOV to 100 tenths of a second. */
1833         ha->r_a_tov = 100;
1834
1835         ha->loop_reset_delay = nv->reset_delay;
1836
1837         /* Link Down Timeout = 0:
1838          *
1839          *      When Port Down timer expires we will start returning
1840          *      I/O's to OS with "DID_NO_CONNECT".
1841          *
1842          * Link Down Timeout != 0:
1843          *
1844          *       The driver waits for the link to come up after link down
1845          *       before returning I/Os to OS with "DID_NO_CONNECT".
1846          */
1847         if (nv->link_down_timeout == 0) {
1848                 ha->loop_down_abort_time =
1849                     (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
1850         } else {
1851                 ha->link_down_timeout =  nv->link_down_timeout;
1852                 ha->loop_down_abort_time =
1853                     (LOOP_DOWN_TIME - ha->link_down_timeout);
1854         }
1855
1856         /*
1857          * Need enough time to try and get the port back.
1858          */
1859         ha->port_down_retry_count = nv->port_down_retry_count;
1860         if (qlport_down_retry)
1861                 ha->port_down_retry_count = qlport_down_retry;
1862         /* Set login_retry_count */
1863         ha->login_retry_count  = nv->retry_count;
1864         if (ha->port_down_retry_count == nv->port_down_retry_count &&
1865             ha->port_down_retry_count > 3)
1866                 ha->login_retry_count = ha->port_down_retry_count;
1867         else if (ha->port_down_retry_count > (int)ha->login_retry_count)
1868                 ha->login_retry_count = ha->port_down_retry_count;
1869         if (ql2xloginretrycount)
1870                 ha->login_retry_count = ql2xloginretrycount;
1871
1872         icb->lun_enables = __constant_cpu_to_le16(0);
1873         icb->command_resource_count = 0;
1874         icb->immediate_notify_resource_count = 0;
1875         icb->timeout = __constant_cpu_to_le16(0);
1876
1877         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
1878                 /* Enable RIO */
1879                 icb->firmware_options[0] &= ~BIT_3;
1880                 icb->add_firmware_options[0] &=
1881                     ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
1882                 icb->add_firmware_options[0] |= BIT_2;
1883                 icb->response_accumulation_timer = 3;
1884                 icb->interrupt_delay_timer = 5;
1885
1886                 vha->flags.process_response_queue = 1;
1887         } else {
1888                 /* Enable ZIO. */
1889                 if (!vha->flags.init_done) {
1890                         ha->zio_mode = icb->add_firmware_options[0] &
1891                             (BIT_3 | BIT_2 | BIT_1 | BIT_0);
1892                         ha->zio_timer = icb->interrupt_delay_timer ?
1893                             icb->interrupt_delay_timer: 2;
1894                 }
1895                 icb->add_firmware_options[0] &=
1896                     ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
1897                 vha->flags.process_response_queue = 0;
1898                 if (ha->zio_mode != QLA_ZIO_DISABLED) {
1899                         ha->zio_mode = QLA_ZIO_MODE_6;
1900
1901                         DEBUG2(printk("scsi(%ld): ZIO mode %d enabled; timer "
1902                             "delay (%d us).\n", vha->host_no, ha->zio_mode,
1903                             ha->zio_timer * 100));
1904                         qla_printk(KERN_INFO, ha,
1905                             "ZIO mode %d enabled; timer delay (%d us).\n",
1906                             ha->zio_mode, ha->zio_timer * 100);
1907
1908                         icb->add_firmware_options[0] |= (uint8_t)ha->zio_mode;
1909                         icb->interrupt_delay_timer = (uint8_t)ha->zio_timer;
1910                         vha->flags.process_response_queue = 1;
1911                 }
1912         }
1913
1914         if (rval) {
1915                 DEBUG2_3(printk(KERN_WARNING
1916                     "scsi(%ld): NVRAM configuration failed!\n", vha->host_no));
1917         }
1918         return (rval);
1919 }
1920
1921 static void
1922 qla2x00_rport_del(void *data)
1923 {
1924         fc_port_t *fcport = data;
1925         struct fc_rport *rport;
1926
1927         spin_lock_irq(fcport->vha->host->host_lock);
1928         rport = fcport->drport;
1929         fcport->drport = NULL;
1930         spin_unlock_irq(fcport->vha->host->host_lock);
1931         if (rport)
1932                 fc_remote_port_delete(rport);
1933 }
1934
1935 /**
1936  * qla2x00_alloc_fcport() - Allocate a generic fcport.
1937  * @ha: HA context
1938  * @flags: allocation flags
1939  *
1940  * Returns a pointer to the allocated fcport, or NULL, if none available.
1941  */
1942 static fc_port_t *
1943 qla2x00_alloc_fcport(scsi_qla_host_t *vha, gfp_t flags)
1944 {
1945         fc_port_t *fcport;
1946
1947         fcport = kzalloc(sizeof(fc_port_t), flags);
1948         if (!fcport)
1949                 return NULL;
1950
1951         /* Setup fcport template structure. */
1952         fcport->vha = vha;
1953         fcport->vp_idx = vha->vp_idx;
1954         fcport->port_type = FCT_UNKNOWN;
1955         fcport->loop_id = FC_NO_LOOP_ID;
1956         atomic_set(&fcport->state, FCS_UNCONFIGURED);
1957         fcport->supported_classes = FC_COS_UNSPECIFIED;
1958
1959         return fcport;
1960 }
1961
1962 /*
1963  * qla2x00_configure_loop
1964  *      Updates Fibre Channel Device Database with what is actually on loop.
1965  *
1966  * Input:
1967  *      ha                = adapter block pointer.
1968  *
1969  * Returns:
1970  *      0 = success.
1971  *      1 = error.
1972  *      2 = database was full and device was not configured.
1973  */
1974 static int
1975 qla2x00_configure_loop(scsi_qla_host_t *vha)
1976 {
1977         int  rval;
1978         unsigned long flags, save_flags;
1979         struct qla_hw_data *ha = vha->hw;
1980         rval = QLA_SUCCESS;
1981
1982         /* Get Initiator ID */
1983         if (test_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags)) {
1984                 rval = qla2x00_configure_hba(vha);
1985                 if (rval != QLA_SUCCESS) {
1986                         DEBUG(printk("scsi(%ld): Unable to configure HBA.\n",
1987                             vha->host_no));
1988                         return (rval);
1989                 }
1990         }
1991
1992         save_flags = flags = vha->dpc_flags;
1993         DEBUG(printk("scsi(%ld): Configure loop -- dpc flags =0x%lx\n",
1994             vha->host_no, flags));
1995
1996         /*
1997          * If we have both an RSCN and PORT UPDATE pending then handle them
1998          * both at the same time.
1999          */
2000         clear_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
2001         clear_bit(RSCN_UPDATE, &vha->dpc_flags);
2002
2003         /* Determine what we need to do */
2004         if (ha->current_topology == ISP_CFG_FL &&
2005             (test_bit(LOCAL_LOOP_UPDATE, &flags))) {
2006
2007                 vha->flags.rscn_queue_overflow = 1;
2008                 set_bit(RSCN_UPDATE, &flags);
2009
2010         } else if (ha->current_topology == ISP_CFG_F &&
2011             (test_bit(LOCAL_LOOP_UPDATE, &flags))) {
2012
2013                 vha->flags.rscn_queue_overflow = 1;
2014                 set_bit(RSCN_UPDATE, &flags);
2015                 clear_bit(LOCAL_LOOP_UPDATE, &flags);
2016
2017         } else if (ha->current_topology == ISP_CFG_N) {
2018                 clear_bit(RSCN_UPDATE, &flags);
2019
2020         } else if (!vha->flags.online ||
2021             (test_bit(ABORT_ISP_ACTIVE, &flags))) {
2022
2023                 vha->flags.rscn_queue_overflow = 1;
2024                 set_bit(RSCN_UPDATE, &flags);
2025                 set_bit(LOCAL_LOOP_UPDATE, &flags);
2026         }
2027
2028         if (test_bit(LOCAL_LOOP_UPDATE, &flags)) {
2029                 if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
2030                         rval = QLA_FUNCTION_FAILED;
2031                 else
2032                         rval = qla2x00_configure_local_loop(vha);
2033         }
2034
2035         if (rval == QLA_SUCCESS && test_bit(RSCN_UPDATE, &flags)) {
2036                 if (LOOP_TRANSITION(vha))
2037                         rval = QLA_FUNCTION_FAILED;
2038                 else
2039                         rval = qla2x00_configure_fabric(vha);
2040         }
2041
2042         if (rval == QLA_SUCCESS) {
2043                 if (atomic_read(&vha->loop_down_timer) ||
2044                     test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
2045                         rval = QLA_FUNCTION_FAILED;
2046                 } else {
2047                         atomic_set(&vha->loop_state, LOOP_READY);
2048
2049                         DEBUG(printk("scsi(%ld): LOOP READY\n", vha->host_no));
2050                 }
2051         }
2052
2053         if (rval) {
2054                 DEBUG2_3(printk("%s(%ld): *** FAILED ***\n",
2055                     __func__, vha->host_no));
2056         } else {
2057                 DEBUG3(printk("%s: exiting normally\n", __func__));
2058         }
2059
2060         /* Restore state if a resync event occurred during processing */
2061         if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
2062                 if (test_bit(LOCAL_LOOP_UPDATE, &save_flags))
2063                         set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
2064                 if (test_bit(RSCN_UPDATE, &save_flags))
2065                         set_bit(RSCN_UPDATE, &vha->dpc_flags);
2066         }
2067
2068         return (rval);
2069 }
2070
2071
2072
2073 /*
2074  * qla2x00_configure_local_loop
2075  *      Updates Fibre Channel Device Database with local loop devices.
2076  *
2077  * Input:
2078  *      ha = adapter block pointer.
2079  *
2080  * Returns:
2081  *      0 = success.
2082  */
2083 static int
2084 qla2x00_configure_local_loop(scsi_qla_host_t *vha)
2085 {
2086         int             rval, rval2;
2087         int             found_devs;
2088         int             found;
2089         fc_port_t       *fcport, *new_fcport;
2090
2091         uint16_t        index;
2092         uint16_t        entries;
2093         char            *id_iter;
2094         uint16_t        loop_id;
2095         uint8_t         domain, area, al_pa;
2096         struct qla_hw_data *ha = vha->hw;
2097
2098         found_devs = 0;
2099         new_fcport = NULL;
2100         entries = MAX_FIBRE_DEVICES;
2101
2102         DEBUG3(printk("scsi(%ld): Getting FCAL position map\n", vha->host_no));
2103         DEBUG3(qla2x00_get_fcal_position_map(vha, NULL));
2104
2105         /* Get list of logged in devices. */
2106         memset(ha->gid_list, 0, GID_LIST_SIZE);
2107         rval = qla2x00_get_id_list(vha, ha->gid_list, ha->gid_list_dma,
2108             &entries);
2109         if (rval != QLA_SUCCESS)
2110                 goto cleanup_allocation;
2111
2112         DEBUG3(printk("scsi(%ld): Entries in ID list (%d)\n",
2113             ha->host_no, entries));
2114         DEBUG3(qla2x00_dump_buffer((uint8_t *)ha->gid_list,
2115             entries * sizeof(struct gid_list_info)));
2116
2117         /* Allocate temporary fcport for any new fcports discovered. */
2118         new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
2119         if (new_fcport == NULL) {
2120                 rval = QLA_MEMORY_ALLOC_FAILED;
2121                 goto cleanup_allocation;
2122         }
2123         new_fcport->flags &= ~FCF_FABRIC_DEVICE;
2124
2125         /*
2126          * Mark local devices that were present with FCF_DEVICE_LOST for now.
2127          */
2128         list_for_each_entry(fcport, &vha->vp_fcports, list) {
2129                 if (atomic_read(&fcport->state) == FCS_ONLINE &&
2130                     fcport->port_type != FCT_BROADCAST &&
2131                     (fcport->flags & FCF_FABRIC_DEVICE) == 0) {
2132
2133                         DEBUG(printk("scsi(%ld): Marking port lost, "
2134                             "loop_id=0x%04x\n",
2135                             vha->host_no, fcport->loop_id));
2136
2137                         atomic_set(&fcport->state, FCS_DEVICE_LOST);
2138                 }
2139         }
2140
2141         /* Add devices to port list. */
2142         id_iter = (char *)ha->gid_list;
2143         for (index = 0; index < entries; index++) {
2144                 domain = ((struct gid_list_info *)id_iter)->domain;
2145                 area = ((struct gid_list_info *)id_iter)->area;
2146                 al_pa = ((struct gid_list_info *)id_iter)->al_pa;
2147                 if (IS_QLA2100(ha) || IS_QLA2200(ha))
2148                         loop_id = (uint16_t)
2149                             ((struct gid_list_info *)id_iter)->loop_id_2100;
2150                 else
2151                         loop_id = le16_to_cpu(
2152                             ((struct gid_list_info *)id_iter)->loop_id);
2153                 id_iter += ha->gid_list_info_size;
2154
2155                 /* Bypass reserved domain fields. */
2156                 if ((domain & 0xf0) == 0xf0)
2157                         continue;
2158
2159                 /* Bypass if not same domain and area of adapter. */
2160                 if (area && domain &&
2161                     (area != vha->d_id.b.area || domain != vha->d_id.b.domain))
2162                         continue;
2163
2164                 /* Bypass invalid local loop ID. */
2165                 if (loop_id > LAST_LOCAL_LOOP_ID)
2166                         continue;
2167
2168                 /* Fill in member data. */
2169                 new_fcport->d_id.b.domain = domain;
2170                 new_fcport->d_id.b.area = area;
2171                 new_fcport->d_id.b.al_pa = al_pa;
2172                 new_fcport->loop_id = loop_id;
2173                 new_fcport->vp_idx = vha->vp_idx;
2174                 rval2 = qla2x00_get_port_database(vha, new_fcport, 0);
2175                 if (rval2 != QLA_SUCCESS) {
2176                         DEBUG2(printk("scsi(%ld): Failed to retrieve fcport "
2177                             "information -- get_port_database=%x, "
2178                             "loop_id=0x%04x\n",
2179                             vha->host_no, rval2, new_fcport->loop_id));
2180                         DEBUG2(printk("scsi(%ld): Scheduling resync...\n",
2181                             vha->host_no));
2182                         set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
2183                         continue;
2184                 }
2185
2186                 /* Check for matching device in port list. */
2187                 found = 0;
2188                 fcport = NULL;
2189                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
2190                         if (memcmp(new_fcport->port_name, fcport->port_name,
2191                             WWN_SIZE))
2192                                 continue;
2193
2194                         fcport->flags &= ~FCF_FABRIC_DEVICE;
2195                         fcport->loop_id = new_fcport->loop_id;
2196                         fcport->port_type = new_fcport->port_type;
2197                         fcport->d_id.b24 = new_fcport->d_id.b24;
2198                         memcpy(fcport->node_name, new_fcport->node_name,
2199                             WWN_SIZE);
2200
2201                         found++;
2202                         break;
2203                 }
2204
2205                 if (!found) {
2206                         /* New device, add to fcports list. */
2207                         if (vha->vp_idx) {
2208                                 new_fcport->vha = vha;
2209                                 new_fcport->vp_idx = vha->vp_idx;
2210                         }
2211                         list_add_tail(&new_fcport->list, &vha->vp_fcports);
2212
2213                         /* Allocate a new replacement fcport. */
2214                         fcport = new_fcport;
2215                         new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
2216                         if (new_fcport == NULL) {
2217                                 rval = QLA_MEMORY_ALLOC_FAILED;
2218                                 goto cleanup_allocation;
2219                         }
2220                         new_fcport->flags &= ~FCF_FABRIC_DEVICE;
2221                 }
2222
2223                 /* Base iIDMA settings on HBA port speed. */
2224                 fcport->fp_speed = ha->link_data_rate;
2225
2226                 qla2x00_update_fcport(vha, fcport);
2227
2228                 found_devs++;
2229         }
2230
2231 cleanup_allocation:
2232         kfree(new_fcport);
2233
2234         if (rval != QLA_SUCCESS) {
2235                 DEBUG2(printk("scsi(%ld): Configure local loop error exit: "
2236                     "rval=%x\n", vha->host_no, rval));
2237         }
2238
2239         return (rval);
2240 }
2241
2242 static void
2243 qla2x00_iidma_fcport(scsi_qla_host_t *vha, fc_port_t *fcport)
2244 {
2245 #define LS_UNKNOWN      2
2246         static char *link_speeds[5] = { "1", "2", "?", "4", "8" };
2247         int rval;
2248         uint16_t mb[6];
2249         struct qla_hw_data *ha = vha->hw;
2250
2251         if (!IS_IIDMA_CAPABLE(ha))
2252                 return;
2253
2254         if (fcport->fp_speed == PORT_SPEED_UNKNOWN ||
2255             fcport->fp_speed > ha->link_data_rate)
2256                 return;
2257
2258         rval = qla2x00_set_idma_speed(vha, fcport->loop_id, fcport->fp_speed,
2259             mb);
2260         if (rval != QLA_SUCCESS) {
2261                 DEBUG2(printk("scsi(%ld): Unable to adjust iIDMA "
2262                     "%02x%02x%02x%02x%02x%02x%02x%02x -- %04x %x %04x %04x.\n",
2263                     vha->host_no, fcport->port_name[0], fcport->port_name[1],
2264                     fcport->port_name[2], fcport->port_name[3],
2265                     fcport->port_name[4], fcport->port_name[5],
2266                     fcport->port_name[6], fcport->port_name[7], rval,
2267                     fcport->fp_speed, mb[0], mb[1]));
2268         } else {
2269                 DEBUG2(qla_printk(KERN_INFO, ha,
2270                     "iIDMA adjusted to %s GB/s on "
2271                     "%02x%02x%02x%02x%02x%02x%02x%02x.\n",
2272                     link_speeds[fcport->fp_speed], fcport->port_name[0],
2273                     fcport->port_name[1], fcport->port_name[2],
2274                     fcport->port_name[3], fcport->port_name[4],
2275                     fcport->port_name[5], fcport->port_name[6],
2276                     fcport->port_name[7]));
2277         }
2278 }
2279
2280 static void
2281 qla2x00_reg_remote_port(scsi_qla_host_t *vha, fc_port_t *fcport)
2282 {
2283         struct fc_rport_identifiers rport_ids;
2284         struct fc_rport *rport;
2285         struct qla_hw_data *ha = vha->hw;
2286
2287         if (fcport->drport)
2288                 qla2x00_rport_del(fcport);
2289
2290         rport_ids.node_name = wwn_to_u64(fcport->node_name);
2291         rport_ids.port_name = wwn_to_u64(fcport->port_name);
2292         rport_ids.port_id = fcport->d_id.b.domain << 16 |
2293             fcport->d_id.b.area << 8 | fcport->d_id.b.al_pa;
2294         rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
2295         fcport->rport = rport = fc_remote_port_add(vha->host, 0, &rport_ids);
2296         if (!rport) {
2297                 qla_printk(KERN_WARNING, ha,
2298                     "Unable to allocate fc remote port!\n");
2299                 return;
2300         }
2301         spin_lock_irq(fcport->vha->host->host_lock);
2302         *((fc_port_t **)rport->dd_data) = fcport;
2303         spin_unlock_irq(fcport->vha->host->host_lock);
2304
2305         rport->supported_classes = fcport->supported_classes;
2306
2307         rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
2308         if (fcport->port_type == FCT_INITIATOR)
2309                 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
2310         if (fcport->port_type == FCT_TARGET)
2311                 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
2312         fc_remote_port_rolechg(rport, rport_ids.roles);
2313 }
2314
2315 /*
2316  * qla2x00_update_fcport
2317  *      Updates device on list.
2318  *
2319  * Input:
2320  *      ha = adapter block pointer.
2321  *      fcport = port structure pointer.
2322  *
2323  * Return:
2324  *      0  - Success
2325  *  BIT_0 - error
2326  *
2327  * Context:
2328  *      Kernel context.
2329  */
2330 void
2331 qla2x00_update_fcport(scsi_qla_host_t *vha, fc_port_t *fcport)
2332 {
2333         struct qla_hw_data *ha = vha->hw;
2334
2335         fcport->vha = vha;
2336         fcport->login_retry = 0;
2337         fcport->port_login_retry_count = ha->port_down_retry_count *
2338             PORT_RETRY_TIME;
2339         atomic_set(&fcport->port_down_timer, ha->port_down_retry_count *
2340             PORT_RETRY_TIME);
2341         fcport->flags &= ~FCF_LOGIN_NEEDED;
2342
2343         qla2x00_iidma_fcport(vha, fcport);
2344
2345         atomic_set(&fcport->state, FCS_ONLINE);
2346
2347         qla2x00_reg_remote_port(vha, fcport);
2348 }
2349
2350 /*
2351  * qla2x00_configure_fabric
2352  *      Setup SNS devices with loop ID's.
2353  *
2354  * Input:
2355  *      ha = adapter block pointer.
2356  *
2357  * Returns:
2358  *      0 = success.
2359  *      BIT_0 = error
2360  */
2361 static int
2362 qla2x00_configure_fabric(scsi_qla_host_t *vha)
2363 {
2364         int     rval, rval2;
2365         fc_port_t       *fcport, *fcptemp;
2366         uint16_t        next_loopid;
2367         uint16_t        mb[MAILBOX_REGISTER_COUNT];
2368         uint16_t        loop_id;
2369         LIST_HEAD(new_fcports);
2370         struct qla_hw_data *ha = vha->hw;
2371         struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
2372
2373         /* If FL port exists, then SNS is present */
2374         if (IS_FWI2_CAPABLE(ha))
2375                 loop_id = NPH_F_PORT;
2376         else
2377                 loop_id = SNS_FL_PORT;
2378         rval = qla2x00_get_port_name(vha, loop_id, vha->fabric_node_name, 1);
2379         if (rval != QLA_SUCCESS) {
2380                 DEBUG2(printk("scsi(%ld): MBC_GET_PORT_NAME Failed, No FL "
2381                     "Port\n", vha->host_no));
2382
2383                 vha->device_flags &= ~SWITCH_FOUND;
2384                 return (QLA_SUCCESS);
2385         }
2386         vha->device_flags |= SWITCH_FOUND;
2387
2388         /* Mark devices that need re-synchronization. */
2389         rval2 = qla2x00_device_resync(vha);
2390         if (rval2 == QLA_RSCNS_HANDLED) {
2391                 /* No point doing the scan, just continue. */
2392                 return (QLA_SUCCESS);
2393         }
2394         do {
2395                 /* FDMI support. */
2396                 if (ql2xfdmienable &&
2397                     test_and_clear_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags))
2398                         qla2x00_fdmi_register(vha);
2399
2400                 /* Ensure we are logged into the SNS. */
2401                 if (IS_FWI2_CAPABLE(ha))
2402                         loop_id = NPH_SNS;
2403                 else
2404                         loop_id = SIMPLE_NAME_SERVER;
2405                 ha->isp_ops->fabric_login(vha, loop_id, 0xff, 0xff,
2406                     0xfc, mb, BIT_1 | BIT_0);
2407                 if (mb[0] != MBS_COMMAND_COMPLETE) {
2408                         DEBUG2(qla_printk(KERN_INFO, ha,
2409                             "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x "
2410                             "mb[2]=%x mb[6]=%x mb[7]=%x\n", loop_id,
2411                             mb[0], mb[1], mb[2], mb[6], mb[7]));
2412                         return (QLA_SUCCESS);
2413                 }
2414
2415                 if (test_and_clear_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags)) {
2416                         if (qla2x00_rft_id(vha)) {
2417                                 /* EMPTY */
2418                                 DEBUG2(printk("scsi(%ld): Register FC-4 "
2419                                     "TYPE failed.\n", vha->host_no));
2420                         }
2421                         if (qla2x00_rff_id(vha)) {
2422                                 /* EMPTY */
2423                                 DEBUG2(printk("scsi(%ld): Register FC-4 "
2424                                     "Features failed.\n", vha->host_no));
2425                         }
2426                         if (qla2x00_rnn_id(vha)) {
2427                                 /* EMPTY */
2428                                 DEBUG2(printk("scsi(%ld): Register Node Name "
2429                                     "failed.\n", vha->host_no));
2430                         } else if (qla2x00_rsnn_nn(vha)) {
2431                                 /* EMPTY */
2432                                 DEBUG2(printk("scsi(%ld): Register Symbolic "
2433                                     "Node Name failed.\n", vha->host_no));
2434                         }
2435                 }
2436
2437                 rval = qla2x00_find_all_fabric_devs(vha, &new_fcports);
2438                 if (rval != QLA_SUCCESS)
2439                         break;
2440
2441                 /*
2442                  * Logout all previous fabric devices marked lost, except
2443                  * tape devices.
2444                  */
2445                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
2446                         if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
2447                                 break;
2448
2449                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0)
2450                                 continue;
2451
2452                         if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2453                                 qla2x00_mark_device_lost(vha, fcport,
2454                                     ql2xplogiabsentdevice, 0);
2455                                 if (fcport->loop_id != FC_NO_LOOP_ID &&
2456                                     (fcport->flags & FCF_TAPE_PRESENT) == 0 &&
2457                                     fcport->port_type != FCT_INITIATOR &&
2458                                     fcport->port_type != FCT_BROADCAST) {
2459                                         ha->isp_ops->fabric_logout(vha,
2460                                             fcport->loop_id,
2461                                             fcport->d_id.b.domain,
2462                                             fcport->d_id.b.area,
2463                                             fcport->d_id.b.al_pa);
2464                                         fcport->loop_id = FC_NO_LOOP_ID;
2465                                 }
2466                         }
2467                 }
2468
2469                 /* Starting free loop ID. */
2470                 next_loopid = ha->min_external_loopid;
2471
2472                 /*
2473                  * Scan through our port list and login entries that need to be
2474                  * logged in.
2475                  */
2476                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
2477                         if (atomic_read(&vha->loop_down_timer) ||
2478                             test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
2479                                 break;
2480
2481                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 ||
2482                             (fcport->flags & FCF_LOGIN_NEEDED) == 0)
2483                                 continue;
2484
2485                         if (fcport->loop_id == FC_NO_LOOP_ID) {
2486                                 fcport->loop_id = next_loopid;
2487                                 rval = qla2x00_find_new_loop_id(
2488                                     base_vha, fcport);
2489                                 if (rval != QLA_SUCCESS) {
2490                                         /* Ran out of IDs to use */
2491                                         break;
2492                                 }
2493                         }
2494                         /* Login and update database */
2495                         qla2x00_fabric_dev_login(vha, fcport, &next_loopid);
2496                 }
2497
2498                 /* Exit if out of loop IDs. */
2499                 if (rval != QLA_SUCCESS) {
2500                         break;
2501                 }
2502
2503                 /*
2504                  * Login and add the new devices to our port list.
2505                  */
2506                 list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) {
2507                         if (atomic_read(&vha->loop_down_timer) ||
2508                             test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
2509                                 break;
2510
2511                         /* Find a new loop ID to use. */
2512                         fcport->loop_id = next_loopid;
2513                         rval = qla2x00_find_new_loop_id(base_vha, fcport);
2514                         if (rval != QLA_SUCCESS) {
2515                                 /* Ran out of IDs to use */
2516                                 break;
2517                         }
2518
2519                         /* Login and update database */
2520                         qla2x00_fabric_dev_login(vha, fcport, &next_loopid);
2521
2522                         if (vha->vp_idx) {
2523                                 fcport->vha = vha;
2524                                 fcport->vp_idx = vha->vp_idx;
2525                         }
2526                         list_move_tail(&fcport->list, &vha->vp_fcports);
2527                 }
2528         } while (0);
2529
2530         /* Free all new device structures not processed. */
2531         list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) {
2532                 list_del(&fcport->list);
2533                 kfree(fcport);
2534         }
2535
2536         if (rval) {
2537                 DEBUG2(printk("scsi(%ld): Configure fabric error exit: "
2538                     "rval=%d\n", vha->host_no, rval));
2539         }
2540
2541         return (rval);
2542 }
2543
2544
2545 /*
2546  * qla2x00_find_all_fabric_devs
2547  *
2548  * Input:
2549  *      ha = adapter block pointer.
2550  *      dev = database device entry pointer.
2551  *
2552  * Returns:
2553  *      0 = success.
2554  *
2555  * Context:
2556  *      Kernel context.
2557  */
2558 static int
2559 qla2x00_find_all_fabric_devs(scsi_qla_host_t *vha,
2560         struct list_head *new_fcports)
2561 {
2562         int             rval;
2563         uint16_t        loop_id;
2564         fc_port_t       *fcport, *new_fcport, *fcptemp;
2565         int             found;
2566
2567         sw_info_t       *swl;
2568         int             swl_idx;
2569         int             first_dev, last_dev;
2570         port_id_t       wrap, nxt_d_id;
2571         struct qla_hw_data *ha = vha->hw;
2572         struct scsi_qla_host *vp, *base_vha = pci_get_drvdata(ha->pdev);
2573         struct scsi_qla_host *tvp;
2574
2575         rval = QLA_SUCCESS;
2576
2577         /* Try GID_PT to get device list, else GAN. */
2578         swl = kcalloc(MAX_FIBRE_DEVICES, sizeof(sw_info_t), GFP_KERNEL);
2579         if (!swl) {
2580                 /*EMPTY*/
2581                 DEBUG2(printk("scsi(%ld): GID_PT allocations failed, fallback "
2582                     "on GA_NXT\n", vha->host_no));
2583         } else {
2584                 if (qla2x00_gid_pt(vha, swl) != QLA_SUCCESS) {
2585                         kfree(swl);
2586                         swl = NULL;
2587                 } else if (qla2x00_gpn_id(vha, swl) != QLA_SUCCESS) {
2588                         kfree(swl);
2589                         swl = NULL;
2590                 } else if (qla2x00_gnn_id(vha, swl) != QLA_SUCCESS) {
2591                         kfree(swl);
2592                         swl = NULL;
2593                 } else if (ql2xiidmaenable &&
2594                     qla2x00_gfpn_id(vha, swl) == QLA_SUCCESS) {
2595                         qla2x00_gpsc(vha, swl);
2596                 }
2597         }
2598         swl_idx = 0;
2599
2600         /* Allocate temporary fcport for any new fcports discovered. */
2601         new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
2602         if (new_fcport == NULL) {
2603                 kfree(swl);
2604                 return (QLA_MEMORY_ALLOC_FAILED);
2605         }
2606         new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
2607         /* Set start port ID scan at adapter ID. */
2608         first_dev = 1;
2609         last_dev = 0;
2610
2611         /* Starting free loop ID. */
2612         loop_id = ha->min_external_loopid;
2613         for (; loop_id <= ha->max_loop_id; loop_id++) {
2614                 if (qla2x00_is_reserved_id(vha, loop_id))
2615                         continue;
2616
2617                 if (atomic_read(&vha->loop_down_timer) || LOOP_TRANSITION(vha))
2618                         break;
2619
2620                 if (swl != NULL) {
2621                         if (last_dev) {
2622                                 wrap.b24 = new_fcport->d_id.b24;
2623                         } else {
2624                                 new_fcport->d_id.b24 = swl[swl_idx].d_id.b24;
2625                                 memcpy(new_fcport->node_name,
2626                                     swl[swl_idx].node_name, WWN_SIZE);
2627                                 memcpy(new_fcport->port_name,
2628                                     swl[swl_idx].port_name, WWN_SIZE);
2629                                 memcpy(new_fcport->fabric_port_name,
2630                                     swl[swl_idx].fabric_port_name, WWN_SIZE);
2631                                 new_fcport->fp_speed = swl[swl_idx].fp_speed;
2632
2633                                 if (swl[swl_idx].d_id.b.rsvd_1 != 0) {
2634                                         last_dev = 1;
2635                                 }
2636                                 swl_idx++;
2637                         }
2638                 } else {
2639                         /* Send GA_NXT to the switch */
2640                         rval = qla2x00_ga_nxt(vha, new_fcport);
2641                         if (rval != QLA_SUCCESS) {
2642                                 qla_printk(KERN_WARNING, ha,
2643                                     "SNS scan failed -- assuming zero-entry "
2644                                     "result...\n");
2645                                 list_for_each_entry_safe(fcport, fcptemp,
2646                                     new_fcports, list) {
2647                                         list_del(&fcport->list);
2648                                         kfree(fcport);
2649                                 }
2650                                 rval = QLA_SUCCESS;
2651                                 break;
2652                         }
2653                 }
2654
2655                 /* If wrap on switch device list, exit. */
2656                 if (first_dev) {
2657                         wrap.b24 = new_fcport->d_id.b24;
2658                         first_dev = 0;
2659                 } else if (new_fcport->d_id.b24 == wrap.b24) {
2660                         DEBUG2(printk("scsi(%ld): device wrap (%02x%02x%02x)\n",
2661                             vha->host_no, new_fcport->d_id.b.domain,
2662                             new_fcport->d_id.b.area, new_fcport->d_id.b.al_pa));
2663                         break;
2664                 }
2665
2666                 /* Bypass if same physical adapter. */
2667                 if (new_fcport->d_id.b24 == base_vha->d_id.b24)
2668                         continue;
2669
2670                 /* Bypass virtual ports of the same host. */
2671                 found = 0;
2672                 if (ha->num_vhosts) {
2673                         list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) {
2674                                 if (new_fcport->d_id.b24 == vp->d_id.b24) {
2675                                         found = 1;
2676                                         break;
2677                                 }
2678                         }
2679                         if (found)
2680                                 continue;
2681                 }
2682
2683                 /* Bypass if same domain and area of adapter. */
2684                 if (((new_fcport->d_id.b24 & 0xffff00) ==
2685                     (vha->d_id.b24 & 0xffff00)) && ha->current_topology ==
2686                         ISP_CFG_FL)
2687                             continue;
2688
2689                 /* Bypass reserved domain fields. */
2690                 if ((new_fcport->d_id.b.domain & 0xf0) == 0xf0)
2691                         continue;
2692
2693                 /* Locate matching device in database. */
2694                 found = 0;
2695                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
2696                         if (memcmp(new_fcport->port_name, fcport->port_name,
2697                             WWN_SIZE))
2698                                 continue;
2699
2700                         found++;
2701
2702                         /* Update port state. */
2703                         memcpy(fcport->fabric_port_name,
2704                             new_fcport->fabric_port_name, WWN_SIZE);
2705                         fcport->fp_speed = new_fcport->fp_speed;
2706
2707                         /*
2708                          * If address the same and state FCS_ONLINE, nothing
2709                          * changed.
2710                          */
2711                         if (fcport->d_id.b24 == new_fcport->d_id.b24 &&
2712                             atomic_read(&fcport->state) == FCS_ONLINE) {
2713                                 break;
2714                         }
2715
2716                         /*
2717                          * If device was not a fabric device before.
2718                          */
2719                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) {
2720                                 fcport->d_id.b24 = new_fcport->d_id.b24;
2721                                 fcport->loop_id = FC_NO_LOOP_ID;
2722                                 fcport->flags |= (FCF_FABRIC_DEVICE |
2723                                     FCF_LOGIN_NEEDED);
2724                                 break;
2725                         }
2726
2727                         /*
2728                          * Port ID changed or device was marked to be updated;
2729                          * Log it out if still logged in and mark it for
2730                          * relogin later.
2731                          */
2732                         fcport->d_id.b24 = new_fcport->d_id.b24;
2733                         fcport->flags |= FCF_LOGIN_NEEDED;
2734                         if (fcport->loop_id != FC_NO_LOOP_ID &&
2735                             (fcport->flags & FCF_TAPE_PRESENT) == 0 &&
2736                             fcport->port_type != FCT_INITIATOR &&
2737                             fcport->port_type != FCT_BROADCAST) {
2738                                 ha->isp_ops->fabric_logout(vha, fcport->loop_id,
2739                                     fcport->d_id.b.domain, fcport->d_id.b.area,
2740                                     fcport->d_id.b.al_pa);
2741                                 fcport->loop_id = FC_NO_LOOP_ID;
2742                         }
2743
2744                         break;
2745                 }
2746
2747                 if (found)
2748                         continue;
2749                 /* If device was not in our fcports list, then add it. */
2750                 list_add_tail(&new_fcport->list, new_fcports);
2751
2752                 /* Allocate a new replacement fcport. */
2753                 nxt_d_id.b24 = new_fcport->d_id.b24;
2754                 new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
2755                 if (new_fcport == NULL) {
2756                         kfree(swl);
2757                         return (QLA_MEMORY_ALLOC_FAILED);
2758                 }
2759                 new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
2760                 new_fcport->d_id.b24 = nxt_d_id.b24;
2761         }
2762
2763         kfree(swl);
2764         kfree(new_fcport);
2765
2766         return (rval);
2767 }
2768
2769 /*
2770  * qla2x00_find_new_loop_id
2771  *      Scan through our port list and find a new usable loop ID.
2772  *
2773  * Input:
2774  *      ha:     adapter state pointer.
2775  *      dev:    port structure pointer.
2776  *
2777  * Returns:
2778  *      qla2x00 local function return status code.
2779  *
2780  * Context:
2781  *      Kernel context.
2782  */
2783 static int
2784 qla2x00_find_new_loop_id(scsi_qla_host_t *vha, fc_port_t *dev)
2785 {
2786         int     rval;
2787         int     found;
2788         fc_port_t *fcport;
2789         uint16_t first_loop_id;
2790         struct qla_hw_data *ha = vha->hw;
2791         struct scsi_qla_host *vp;
2792         struct scsi_qla_host *tvp;
2793
2794         rval = QLA_SUCCESS;
2795
2796         /* Save starting loop ID. */
2797         first_loop_id = dev->loop_id;
2798
2799         for (;;) {
2800                 /* Skip loop ID if already used by adapter. */
2801                 if (dev->loop_id == vha->loop_id)
2802                         dev->loop_id++;
2803
2804                 /* Skip reserved loop IDs. */
2805                 while (qla2x00_is_reserved_id(vha, dev->loop_id))
2806                         dev->loop_id++;
2807
2808                 /* Reset loop ID if passed the end. */
2809                 if (dev->loop_id > ha->max_loop_id) {
2810                         /* first loop ID. */
2811                         dev->loop_id = ha->min_external_loopid;
2812                 }
2813
2814                 /* Check for loop ID being already in use. */
2815                 found = 0;
2816                 fcport = NULL;
2817                 list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) {
2818                         list_for_each_entry(fcport, &vp->vp_fcports, list) {
2819                                 if (fcport->loop_id == dev->loop_id &&
2820                                                                 fcport != dev) {
2821                                         /* ID possibly in use */
2822                                         found++;
2823                                         break;
2824                                 }
2825                         }
2826                         if (found)
2827                                 break;
2828                 }
2829
2830                 /* If not in use then it is free to use. */
2831                 if (!found) {
2832                         break;
2833                 }
2834
2835                 /* ID in use. Try next value. */
2836                 dev->loop_id++;
2837
2838                 /* If wrap around. No free ID to use. */
2839                 if (dev->loop_id == first_loop_id) {
2840                         dev->loop_id = FC_NO_LOOP_ID;
2841                         rval = QLA_FUNCTION_FAILED;
2842                         break;
2843                 }
2844         }
2845
2846         return (rval);
2847 }
2848
2849 /*
2850  * qla2x00_device_resync
2851  *      Marks devices in the database that needs resynchronization.
2852  *
2853  * Input:
2854  *      ha = adapter block pointer.
2855  *
2856  * Context:
2857  *      Kernel context.
2858  */
2859 static int
2860 qla2x00_device_resync(scsi_qla_host_t *vha)
2861 {
2862         int     rval;
2863         uint32_t mask;
2864         fc_port_t *fcport;
2865         uint32_t rscn_entry;
2866         uint8_t rscn_out_iter;
2867         uint8_t format;
2868         port_id_t d_id;
2869
2870         rval = QLA_RSCNS_HANDLED;
2871
2872         while (vha->rscn_out_ptr != vha->rscn_in_ptr ||
2873             vha->flags.rscn_queue_overflow) {
2874
2875                 rscn_entry = vha->rscn_queue[vha->rscn_out_ptr];
2876                 format = MSB(MSW(rscn_entry));
2877                 d_id.b.domain = LSB(MSW(rscn_entry));
2878                 d_id.b.area = MSB(LSW(rscn_entry));
2879                 d_id.b.al_pa = LSB(LSW(rscn_entry));
2880
2881                 DEBUG(printk("scsi(%ld): RSCN queue entry[%d] = "
2882                     "[%02x/%02x%02x%02x].\n",
2883                     vha->host_no, vha->rscn_out_ptr, format, d_id.b.domain,
2884                     d_id.b.area, d_id.b.al_pa));
2885
2886                 vha->rscn_out_ptr++;
2887                 if (vha->rscn_out_ptr == MAX_RSCN_COUNT)
2888                         vha->rscn_out_ptr = 0;
2889
2890                 /* Skip duplicate entries. */
2891                 for (rscn_out_iter = vha->rscn_out_ptr;
2892                     !vha->flags.rscn_queue_overflow &&
2893                     rscn_out_iter != vha->rscn_in_ptr;
2894                     rscn_out_iter = (rscn_out_iter ==
2895                         (MAX_RSCN_COUNT - 1)) ? 0: rscn_out_iter + 1) {
2896
2897                         if (rscn_entry != vha->rscn_queue[rscn_out_iter])
2898                                 break;
2899
2900                         DEBUG(printk("scsi(%ld): Skipping duplicate RSCN queue "
2901                             "entry found at [%d].\n", vha->host_no,
2902                             rscn_out_iter));
2903
2904                         vha->rscn_out_ptr = rscn_out_iter;
2905                 }
2906
2907                 /* Queue overflow, set switch default case. */
2908                 if (vha->flags.rscn_queue_overflow) {
2909                         DEBUG(printk("scsi(%ld): device_resync: rscn "
2910                             "overflow.\n", vha->host_no));
2911
2912                         format = 3;
2913                         vha->flags.rscn_queue_overflow = 0;
2914                 }
2915
2916                 switch (format) {
2917                 case 0:
2918                         mask = 0xffffff;
2919                         break;
2920                 case 1:
2921                         mask = 0xffff00;
2922                         break;
2923                 case 2:
2924                         mask = 0xff0000;
2925                         break;
2926                 default:
2927                         mask = 0x0;
2928                         d_id.b24 = 0;
2929                         vha->rscn_out_ptr = vha->rscn_in_ptr;
2930                         break;
2931                 }
2932
2933                 rval = QLA_SUCCESS;
2934
2935                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
2936                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 ||
2937                             (fcport->d_id.b24 & mask) != d_id.b24 ||
2938                             fcport->port_type == FCT_BROADCAST)
2939                                 continue;
2940
2941                         if (atomic_read(&fcport->state) == FCS_ONLINE) {
2942                                 if (format != 3 ||
2943                                     fcport->port_type != FCT_INITIATOR) {
2944                                         qla2x00_mark_device_lost(vha, fcport,
2945                                             0, 0);
2946                                 }
2947                         }
2948                 }
2949         }
2950         return (rval);
2951 }
2952
2953 /*
2954  * qla2x00_fabric_dev_login
2955  *      Login fabric target device and update FC port database.
2956  *
2957  * Input:
2958  *      ha:             adapter state pointer.
2959  *      fcport:         port structure list pointer.
2960  *      next_loopid:    contains value of a new loop ID that can be used
2961  *                      by the next login attempt.
2962  *
2963  * Returns:
2964  *      qla2x00 local function return status code.
2965  *
2966  * Context:
2967  *      Kernel context.
2968  */
2969 static int
2970 qla2x00_fabric_dev_login(scsi_qla_host_t *vha, fc_port_t *fcport,
2971     uint16_t *next_loopid)
2972 {
2973         int     rval;
2974         int     retry;
2975         uint8_t opts;
2976         struct qla_hw_data *ha = vha->hw;
2977
2978         rval = QLA_SUCCESS;
2979         retry = 0;
2980
2981         rval = qla2x00_fabric_login(vha, fcport, next_loopid);
2982         if (rval == QLA_SUCCESS) {
2983                 /* Send an ADISC to tape devices.*/
2984                 opts = 0;
2985                 if (fcport->flags & FCF_TAPE_PRESENT)
2986                         opts |= BIT_1;
2987                 rval = qla2x00_get_port_database(vha, fcport, opts);
2988                 if (rval != QLA_SUCCESS) {
2989                         ha->isp_ops->fabric_logout(vha, fcport->loop_id,
2990                             fcport->d_id.b.domain, fcport->d_id.b.area,
2991                             fcport->d_id.b.al_pa);
2992                         qla2x00_mark_device_lost(vha, fcport, 1, 0);
2993                 } else {
2994                         qla2x00_update_fcport(vha, fcport);
2995                 }
2996         }
2997
2998         return (rval);
2999 }
3000
3001 /*
3002  * qla2x00_fabric_login
3003  *      Issue fabric login command.
3004  *
3005  * Input:
3006  *      ha = adapter block pointer.
3007  *      device = pointer to FC device type structure.
3008  *
3009  * Returns:
3010  *      0 - Login successfully
3011  *      1 - Login failed
3012  *      2 - Initiator device
3013  *      3 - Fatal error
3014  */
3015 int
3016 qla2x00_fabric_login(scsi_qla_host_t *vha, fc_port_t *fcport,
3017     uint16_t *next_loopid)
3018 {
3019         int     rval;
3020         int     retry;
3021         uint16_t tmp_loopid;
3022         uint16_t mb[MAILBOX_REGISTER_COUNT];
3023         struct qla_hw_data *ha = vha->hw;
3024
3025         retry = 0;
3026         tmp_loopid = 0;
3027
3028         for (;;) {
3029                 DEBUG(printk("scsi(%ld): Trying Fabric Login w/loop id 0x%04x "
3030                     "for port %02x%02x%02x.\n",
3031                     vha->host_no, fcport->loop_id, fcport->d_id.b.domain,
3032                     fcport->d_id.b.area, fcport->d_id.b.al_pa));
3033
3034                 /* Login fcport on switch. */
3035                 ha->isp_ops->fabric_login(vha, fcport->loop_id,
3036                     fcport->d_id.b.domain, fcport->d_id.b.area,
3037                     fcport->d_id.b.al_pa, mb, BIT_0);
3038                 if (mb[0] == MBS_PORT_ID_USED) {
3039                         /*
3040                          * Device has another loop ID.  The firmware team
3041                          * recommends the driver perform an implicit login with
3042                          * the specified ID again. The ID we just used is save
3043                          * here so we return with an ID that can be tried by
3044                          * the next login.
3045                          */
3046                         retry++;
3047                         tmp_loopid = fcport->loop_id;
3048                         fcport->loop_id = mb[1];
3049
3050                         DEBUG(printk("Fabric Login: port in use - next "
3051                             "loop id=0x%04x, port Id=%02x%02x%02x.\n",
3052                             fcport->loop_id, fcport->d_id.b.domain,
3053                             fcport->d_id.b.area, fcport->d_id.b.al_pa));
3054
3055                 } else if (mb[0] == MBS_COMMAND_COMPLETE) {
3056                         /*
3057                          * Login succeeded.
3058                          */
3059                         if (retry) {
3060                                 /* A retry occurred before. */
3061                                 *next_loopid = tmp_loopid;
3062                         } else {
3063                                 /*
3064                                  * No retry occurred before. Just increment the
3065                                  * ID value for next login.
3066                                  */
3067                                 *next_loopid = (fcport->loop_id + 1);
3068                         }
3069
3070                         if (mb[1] & BIT_0) {
3071                                 fcport->port_type = FCT_INITIATOR;
3072                         } else {
3073                                 fcport->port_type = FCT_TARGET;
3074                                 if (mb[1] & BIT_1) {
3075                                         fcport->flags |= FCF_TAPE_PRESENT;
3076                                 }
3077                         }
3078
3079                         if (mb[10] & BIT_0)
3080                                 fcport->supported_classes |= FC_COS_CLASS2;
3081                         if (mb[10] & BIT_1)
3082                                 fcport->supported_classes |= FC_COS_CLASS3;
3083
3084                         rval = QLA_SUCCESS;
3085                         break;
3086                 } else if (mb[0] == MBS_LOOP_ID_USED) {
3087                         /*
3088                          * Loop ID already used, try next loop ID.
3089                          */
3090                         fcport->loop_id++;
3091                         rval = qla2x00_find_new_loop_id(vha, fcport);
3092                         if (rval != QLA_SUCCESS) {
3093                                 /* Ran out of loop IDs to use */
3094                                 break;
3095                         }
3096                 } else if (mb[0] == MBS_COMMAND_ERROR) {
3097                         /*
3098                          * Firmware possibly timed out during login. If NO
3099                          * retries are left to do then the device is declared
3100                          * dead.
3101                          */
3102                         *next_loopid = fcport->loop_id;
3103                         ha->isp_ops->fabric_logout(vha, fcport->loop_id,
3104                             fcport->d_id.b.domain, fcport->d_id.b.area,
3105                             fcport->d_id.b.al_pa);
3106                         qla2x00_mark_device_lost(vha, fcport, 1, 0);
3107
3108                         rval = 1;
3109                         break;
3110                 } else {
3111                         /*
3112                          * unrecoverable / not handled error
3113                          */
3114                         DEBUG2(printk("%s(%ld): failed=%x port_id=%02x%02x%02x "
3115                             "loop_id=%x jiffies=%lx.\n",
3116                             __func__, vha->host_no, mb[0],
3117                             fcport->d_id.b.domain, fcport->d_id.b.area,
3118                             fcport->d_id.b.al_pa, fcport->loop_id, jiffies));
3119
3120                         *next_loopid = fcport->loop_id;
3121                         ha->isp_ops->fabric_logout(vha, fcport->loop_id,
3122                             fcport->d_id.b.domain, fcport->d_id.b.area,
3123                             fcport->d_id.b.al_pa);
3124                         fcport->loop_id = FC_NO_LOOP_ID;
3125                         fcport->login_retry = 0;
3126
3127                         rval = 3;
3128                         break;
3129                 }
3130         }
3131
3132         return (rval);
3133 }
3134
3135 /*
3136  * qla2x00_local_device_login
3137  *      Issue local device login command.
3138  *
3139  * Input:
3140  *      ha = adapter block pointer.
3141  *      loop_id = loop id of device to login to.
3142  *
3143  * Returns (Where's the #define!!!!):
3144  *      0 - Login successfully
3145  *      1 - Login failed
3146  *      3 - Fatal error
3147  */
3148 int
3149 qla2x00_local_device_login(scsi_qla_host_t *vha, fc_port_t *fcport)
3150 {
3151         int             rval;
3152         uint16_t        mb[MAILBOX_REGISTER_COUNT];
3153
3154         memset(mb, 0, sizeof(mb));
3155         rval = qla2x00_login_local_device(vha, fcport, mb, BIT_0);
3156         if (rval == QLA_SUCCESS) {
3157                 /* Interrogate mailbox registers for any errors */
3158                 if (mb[0] == MBS_COMMAND_ERROR)
3159                         rval = 1;
3160                 else if (mb[0] == MBS_COMMAND_PARAMETER_ERROR)
3161                         /* device not in PCB table */
3162                         rval = 3;
3163         }
3164
3165         return (rval);
3166 }
3167
3168 /*
3169  *  qla2x00_loop_resync
3170  *      Resync with fibre channel devices.
3171  *
3172  * Input:
3173  *      ha = adapter block pointer.
3174  *
3175  * Returns:
3176  *      0 = success
3177  */
3178 int
3179 qla2x00_loop_resync(scsi_qla_host_t *vha)
3180 {
3181         int rval = QLA_SUCCESS;
3182         uint32_t wait_time;
3183         struct qla_hw_data *ha = vha->hw;
3184         struct req_que *req = ha->req_q_map[vha->req_ques[0]];
3185         struct rsp_que *rsp = req->rsp;
3186
3187         atomic_set(&vha->loop_state, LOOP_UPDATE);
3188         clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
3189         if (vha->flags.online) {
3190                 if (!(rval = qla2x00_fw_ready(vha))) {
3191                         /* Wait at most MAX_TARGET RSCNs for a stable link. */
3192                         wait_time = 256;
3193                         do {
3194                                 atomic_set(&vha->loop_state, LOOP_UPDATE);
3195
3196                                 /* Issue a marker after FW becomes ready. */
3197                                 qla2x00_marker(vha, req, rsp, 0, 0,
3198                                         MK_SYNC_ALL);
3199                                 vha->marker_needed = 0;
3200
3201                                 /* Remap devices on Loop. */
3202                                 clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
3203
3204                                 qla2x00_configure_loop(vha);
3205                                 wait_time--;
3206                         } while (!atomic_read(&vha->loop_down_timer) &&
3207                                 !(test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags))
3208                                 && wait_time && (test_bit(LOOP_RESYNC_NEEDED,
3209                                 &vha->dpc_flags)));
3210                 }
3211         }
3212
3213         if (test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags))
3214                 return (QLA_FUNCTION_FAILED);
3215
3216         if (rval)
3217                 DEBUG2_3(printk("%s(): **** FAILED ****\n", __func__));
3218
3219         return (rval);
3220 }
3221
3222 void
3223 qla2x00_update_fcports(scsi_qla_host_t *vha)
3224 {
3225         fc_port_t *fcport;
3226
3227         /* Go with deferred removal of rport references. */
3228         list_for_each_entry(fcport, &vha->vp_fcports, list)
3229                 if (fcport && fcport->drport &&
3230                     atomic_read(&fcport->state) != FCS_UNCONFIGURED)
3231                         qla2x00_rport_del(fcport);
3232 }
3233
3234 /*
3235 *  qla2x00_abort_isp
3236 *      Resets ISP and aborts all outstanding commands.
3237 *
3238 * Input:
3239 *      ha           = adapter block pointer.
3240 *
3241 * Returns:
3242 *      0 = success
3243 */
3244 int
3245 qla2x00_abort_isp(scsi_qla_host_t *vha)
3246 {
3247         int rval;
3248         uint8_t        status = 0;
3249         struct qla_hw_data *ha = vha->hw;
3250         struct scsi_qla_host *vp;
3251         struct scsi_qla_host *tvp;
3252         struct req_que *req = ha->req_q_map[0];
3253
3254         if (vha->flags.online) {
3255                 vha->flags.online = 0;
3256                 ha->flags.chip_reset_done = 0;
3257                 clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3258                 ha->qla_stats.total_isp_aborts++;
3259
3260                 qla_printk(KERN_INFO, ha,
3261                     "Performing ISP error recovery - ha= %p.\n", ha);
3262                 ha->isp_ops->reset_chip(vha);
3263
3264                 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
3265                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
3266                         atomic_set(&vha->loop_state, LOOP_DOWN);
3267                         qla2x00_mark_all_devices_lost(vha, 0);
3268                         list_for_each_entry_safe(vp, tvp, &ha->vp_list, list)
3269                                qla2x00_mark_all_devices_lost(vp, 0);
3270                 } else {
3271                         if (!atomic_read(&vha->loop_down_timer))
3272                                 atomic_set(&vha->loop_down_timer,
3273                                     LOOP_DOWN_TIME);
3274                 }
3275
3276                 /* Requeue all commands in outstanding command list. */
3277                 qla2x00_abort_all_cmds(vha, DID_RESET << 16);
3278
3279                 ha->isp_ops->get_flash_version(vha, req->ring);
3280
3281                 ha->isp_ops->nvram_config(vha);
3282
3283                 if (!qla2x00_restart_isp(vha)) {
3284                         clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
3285
3286                         if (!atomic_read(&vha->loop_down_timer)) {
3287                                 /*
3288                                  * Issue marker command only when we are going
3289                                  * to start the I/O .
3290                                  */
3291                                 vha->marker_needed = 1;
3292                         }
3293
3294                         vha->flags.online = 1;
3295
3296                         ha->isp_ops->enable_intrs(ha);
3297
3298                         ha->isp_abort_cnt = 0;
3299                         clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
3300
3301                         if (ha->fce) {
3302                                 ha->flags.fce_enabled = 1;
3303                                 memset(ha->fce, 0,
3304                                     fce_calc_size(ha->fce_bufs));
3305                                 rval = qla2x00_enable_fce_trace(vha,
3306                                     ha->fce_dma, ha->fce_bufs, ha->fce_mb,
3307                                     &ha->fce_bufs);
3308                                 if (rval) {
3309                                         qla_printk(KERN_WARNING, ha,
3310                                             "Unable to reinitialize FCE "
3311                                             "(%d).\n", rval);
3312                                         ha->flags.fce_enabled = 0;
3313                                 }
3314                         }
3315
3316                         if (ha->eft) {
3317                                 memset(ha->eft, 0, EFT_SIZE);
3318                                 rval = qla2x00_enable_eft_trace(vha,
3319                                     ha->eft_dma, EFT_NUM_BUFFERS);
3320                                 if (rval) {
3321                                         qla_printk(KERN_WARNING, ha,
3322                                             "Unable to reinitialize EFT "
3323                                             "(%d).\n", rval);
3324                                 }
3325                         }
3326                 } else {        /* failed the ISP abort */
3327                         vha->flags.online = 1;
3328                         if (test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
3329                                 if (ha->isp_abort_cnt == 0) {
3330                                         qla_printk(KERN_WARNING, ha,
3331                                             "ISP error recovery failed - "
3332                                             "board disabled\n");
3333                                         /*
3334                                          * The next call disables the board
3335                                          * completely.
3336                                          */
3337                                         ha->isp_ops->reset_adapter(vha);
3338                                         vha->flags.online = 0;
3339                                         clear_bit(ISP_ABORT_RETRY,
3340                                             &vha->dpc_flags);
3341                                         status = 0;
3342                                 } else { /* schedule another ISP abort */
3343                                         ha->isp_abort_cnt--;
3344                                         DEBUG(printk("qla%ld: ISP abort - "
3345                                             "retry remaining %d\n",
3346                                             vha->host_no, ha->isp_abort_cnt));
3347                                         status = 1;
3348                                 }
3349                         } else {
3350                                 ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT;
3351                                 DEBUG(printk("qla2x00(%ld): ISP error recovery "
3352                                     "- retrying (%d) more times\n",
3353                                     vha->host_no, ha->isp_abort_cnt));
3354                                 set_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
3355                                 status = 1;
3356                         }
3357                 }
3358
3359         }
3360
3361         if (!status) {
3362                 DEBUG(printk(KERN_INFO
3363                                 "qla2x00_abort_isp(%ld): succeeded.\n",
3364                                 vha->host_no));
3365                 list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) {
3366                         if (vp->vp_idx)
3367                                 qla2x00_vp_abort_isp(vp);
3368                 }
3369         } else {
3370                 qla_printk(KERN_INFO, ha,
3371                         "qla2x00_abort_isp: **** FAILED ****\n");
3372         }
3373
3374         return(status);
3375 }
3376
3377 /*
3378 *  qla2x00_restart_isp
3379 *      restarts the ISP after a reset
3380 *
3381 * Input:
3382 *      ha = adapter block pointer.
3383 *
3384 * Returns:
3385 *      0 = success
3386 */
3387 static int
3388 qla2x00_restart_isp(scsi_qla_host_t *vha)
3389 {
3390         int status = 0;
3391         uint32_t wait_time;
3392         struct qla_hw_data *ha = vha->hw;
3393         struct req_que *req = ha->req_q_map[0];
3394         struct rsp_que *rsp = ha->rsp_q_map[0];
3395
3396         /* If firmware needs to be loaded */
3397         if (qla2x00_isp_firmware(vha)) {
3398                 vha->flags.online = 0;
3399                 status = ha->isp_ops->chip_diag(vha);
3400                 if (!status)
3401                         status = qla2x00_setup_chip(vha);
3402         }
3403
3404         if (!status && !(status = qla2x00_init_rings(vha))) {
3405                 clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
3406                 ha->flags.chip_reset_done = 1;
3407                 /* Initialize the queues in use */
3408                 qla25xx_init_queues(ha);
3409
3410                 status = qla2x00_fw_ready(vha);
3411                 if (!status) {
3412                         DEBUG(printk("%s(): Start configure loop, "
3413                             "status = %d\n", __func__, status));
3414
3415                         /* Issue a marker after FW becomes ready. */
3416                         qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL);
3417
3418                         vha->flags.online = 1;
3419                         /* Wait at most MAX_TARGET RSCNs for a stable link. */
3420                         wait_time = 256;
3421                         do {
3422                                 clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
3423                                 qla2x00_configure_loop(vha);
3424                                 wait_time--;
3425                         } while (!atomic_read(&vha->loop_down_timer) &&
3426                                 !(test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags))
3427                                 && wait_time && (test_bit(LOOP_RESYNC_NEEDED,
3428                                 &vha->dpc_flags)));
3429                 }
3430
3431                 /* if no cable then assume it's good */
3432                 if ((vha->device_flags & DFLG_NO_CABLE))
3433                         status = 0;
3434
3435                 DEBUG(printk("%s(): Configure loop done, status = 0x%x\n",
3436                                 __func__,
3437                                 status));
3438         }
3439         return (status);
3440 }
3441
3442 static int
3443 qla25xx_init_queues(struct qla_hw_data *ha)
3444 {
3445         struct rsp_que *rsp = NULL;
3446         struct req_que *req = NULL;
3447         struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
3448         int ret = -1;
3449         int i;
3450
3451         for (i = 1; i < ha->max_queues; i++) {
3452                 rsp = ha->rsp_q_map[i];
3453                 if (rsp) {
3454                         rsp->options &= ~BIT_0;
3455                         ret = qla25xx_init_rsp_que(base_vha, rsp);
3456                         if (ret != QLA_SUCCESS)
3457                                 DEBUG2_17(printk(KERN_WARNING
3458                                         "%s Rsp que:%d init failed\n", __func__,
3459                                                 rsp->id));
3460                         else
3461                                 DEBUG2_17(printk(KERN_INFO
3462                                         "%s Rsp que:%d inited\n", __func__,
3463                                                 rsp->id));
3464                 }
3465                 req = ha->req_q_map[i];
3466                 if (req) {
3467                 /* Clear outstanding commands array. */
3468                         req->options &= ~BIT_0;
3469                         ret = qla25xx_init_req_que(base_vha, req);
3470                         if (ret != QLA_SUCCESS)
3471                                 DEBUG2_17(printk(KERN_WARNING
3472                                         "%s Req que:%d init failed\n", __func__,
3473                                                 req->id));
3474                         else
3475                                 DEBUG2_17(printk(KERN_WARNING
3476                                         "%s Req que:%d inited\n", __func__,
3477                                                 req->id));
3478                 }
3479         }
3480         return ret;
3481 }
3482
3483 /*
3484 * qla2x00_reset_adapter
3485 *      Reset adapter.
3486 *
3487 * Input:
3488 *      ha = adapter block pointer.
3489 */
3490 void
3491 qla2x00_reset_adapter(scsi_qla_host_t *vha)
3492 {
3493         unsigned long flags = 0;
3494         struct qla_hw_data *ha = vha->hw;
3495         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3496
3497         vha->flags.online = 0;
3498         ha->isp_ops->disable_intrs(ha);
3499
3500         spin_lock_irqsave(&ha->hardware_lock, flags);
3501         WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
3502         RD_REG_WORD(&reg->hccr);                        /* PCI Posting. */
3503         WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
3504         RD_REG_WORD(&reg->hccr);                        /* PCI Posting. */
3505         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3506 }
3507
3508 void
3509 qla24xx_reset_adapter(scsi_qla_host_t *vha)
3510 {
3511         unsigned long flags = 0;
3512         struct qla_hw_data *ha = vha->hw;
3513         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
3514
3515         vha->flags.online = 0;
3516         ha->isp_ops->disable_intrs(ha);
3517
3518         spin_lock_irqsave(&ha->hardware_lock, flags);
3519         WRT_REG_DWORD(&reg->hccr, HCCRX_SET_RISC_RESET);
3520         RD_REG_DWORD(&reg->hccr);
3521         WRT_REG_DWORD(&reg->hccr, HCCRX_REL_RISC_PAUSE);
3522         RD_REG_DWORD(&reg->hccr);
3523         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3524
3525         if (IS_NOPOLLING_TYPE(ha))
3526                 ha->isp_ops->enable_intrs(ha);
3527 }
3528
3529 /* On sparc systems, obtain port and node WWN from firmware
3530  * properties.
3531  */
3532 static void qla24xx_nvram_wwn_from_ofw(scsi_qla_host_t *vha,
3533         struct nvram_24xx *nv)
3534 {
3535 #ifdef CONFIG_SPARC
3536         struct qla_hw_data *ha = vha->hw;
3537         struct pci_dev *pdev = ha->pdev;
3538         struct device_node *dp = pci_device_to_OF_node(pdev);
3539         const u8 *val;
3540         int len;
3541
3542         val = of_get_property(dp, "port-wwn", &len);
3543         if (val && len >= WWN_SIZE)
3544                 memcpy(nv->port_name, val, WWN_SIZE);
3545
3546         val = of_get_property(dp, "node-wwn", &len);
3547         if (val && len >= WWN_SIZE)
3548                 memcpy(nv->node_name, val, WWN_SIZE);
3549 #endif
3550 }
3551
3552 int
3553 qla24xx_nvram_config(scsi_qla_host_t *vha)
3554 {
3555         int   rval;
3556         struct init_cb_24xx *icb;
3557         struct nvram_24xx *nv;
3558         uint32_t *dptr;
3559         uint8_t  *dptr1, *dptr2;
3560         uint32_t chksum;
3561         uint16_t cnt;
3562         struct qla_hw_data *ha = vha->hw;
3563
3564         rval = QLA_SUCCESS;
3565         icb = (struct init_cb_24xx *)ha->init_cb;
3566         nv = ha->nvram;
3567
3568         /* Determine NVRAM starting address. */
3569         ha->nvram_size = sizeof(struct nvram_24xx);
3570         ha->nvram_base = FA_NVRAM_FUNC0_ADDR;
3571         ha->vpd_size = FA_NVRAM_VPD_SIZE;
3572         ha->vpd_base = FA_NVRAM_VPD0_ADDR;
3573         if (PCI_FUNC(ha->pdev->devfn)) {
3574                 ha->nvram_base = FA_NVRAM_FUNC1_ADDR;
3575                 ha->vpd_base = FA_NVRAM_VPD1_ADDR;
3576         }
3577
3578         /* Get VPD data into cache */
3579         ha->vpd = ha->nvram + VPD_OFFSET;
3580         ha->isp_ops->read_nvram(vha, (uint8_t *)ha->vpd,
3581             ha->nvram_base - FA_NVRAM_FUNC0_ADDR, FA_NVRAM_VPD_SIZE * 4);
3582
3583         /* Get NVRAM data into cache and calculate checksum. */
3584         dptr = (uint32_t *)nv;
3585         ha->isp_ops->read_nvram(vha, (uint8_t *)dptr, ha->nvram_base,
3586             ha->nvram_size);
3587         for (cnt = 0, chksum = 0; cnt < ha->nvram_size >> 2; cnt++)
3588                 chksum += le32_to_cpu(*dptr++);
3589
3590         DEBUG5(printk("scsi(%ld): Contents of NVRAM\n", ha->host_no));
3591         DEBUG5(qla2x00_dump_buffer((uint8_t *)nv, ha->nvram_size));
3592
3593         /* Bad NVRAM data, set defaults parameters. */
3594         if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' || nv->id[2] != 'P'
3595             || nv->id[3] != ' ' ||
3596             nv->nvram_version < __constant_cpu_to_le16(ICB_VERSION)) {
3597                 /* Reset NVRAM data. */
3598                 qla_printk(KERN_WARNING, ha, "Inconsistent NVRAM detected: "
3599                     "checksum=0x%x id=%c version=0x%x.\n", chksum, nv->id[0],
3600                     le16_to_cpu(nv->nvram_version));
3601                 qla_printk(KERN_WARNING, ha, "Falling back to functioning (yet "
3602                     "invalid -- WWPN) defaults.\n");
3603
3604                 /*
3605                  * Set default initialization control block.
3606                  */
3607                 memset(nv, 0, ha->nvram_size);
3608                 nv->nvram_version = __constant_cpu_to_le16(ICB_VERSION);
3609                 nv->version = __constant_cpu_to_le16(ICB_VERSION);
3610                 nv->frame_payload_size = __constant_cpu_to_le16(2048);
3611                 nv->execution_throttle = __constant_cpu_to_le16(0xFFFF);
3612                 nv->exchange_count = __constant_cpu_to_le16(0);
3613                 nv->hard_address = __constant_cpu_to_le16(124);
3614                 nv->port_name[0] = 0x21;
3615                 nv->port_name[1] = 0x00 + PCI_FUNC(ha->pdev->devfn);
3616                 nv->port_name[2] = 0x00;
3617                 nv->port_name[3] = 0xe0;
3618                 nv->port_name[4] = 0x8b;
3619                 nv->port_name[5] = 0x1c;
3620                 nv->port_name[6] = 0x55;
3621                 nv->port_name[7] = 0x86;
3622                 nv->node_name[0] = 0x20;
3623                 nv->node_name[1] = 0x00;
3624                 nv->node_name[2] = 0x00;
3625                 nv->node_name[3] = 0xe0;
3626                 nv->node_name[4] = 0x8b;
3627                 nv->node_name[5] = 0x1c;
3628                 nv->node_name[6] = 0x55;
3629                 nv->node_name[7] = 0x86;
3630                 qla24xx_nvram_wwn_from_ofw(vha, nv);
3631                 nv->login_retry_count = __constant_cpu_to_le16(8);
3632                 nv->interrupt_delay_timer = __constant_cpu_to_le16(0);
3633                 nv->login_timeout = __constant_cpu_to_le16(0);
3634                 nv->firmware_options_1 =
3635                     __constant_cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1);
3636                 nv->firmware_options_2 = __constant_cpu_to_le32(2 << 4);
3637                 nv->firmware_options_2 |= __constant_cpu_to_le32(BIT_12);
3638                 nv->firmware_options_3 = __constant_cpu_to_le32(2 << 13);
3639                 nv->host_p = __constant_cpu_to_le32(BIT_11|BIT_10);
3640                 nv->efi_parameters = __constant_cpu_to_le32(0);
3641                 nv->reset_delay = 5;
3642                 nv->max_luns_per_target = __constant_cpu_to_le16(128);
3643                 nv->port_down_retry_count = __constant_cpu_to_le16(30);
3644                 nv->link_down_timeout = __constant_cpu_to_le16(30);
3645
3646                 rval = 1;
3647         }
3648
3649         /* Reset Initialization control block */
3650         memset(icb, 0, ha->init_cb_size);
3651
3652         /* Copy 1st segment. */
3653         dptr1 = (uint8_t *)icb;
3654         dptr2 = (uint8_t *)&nv->version;
3655         cnt = (uint8_t *)&icb->response_q_inpointer - (uint8_t *)&icb->version;
3656         while (cnt--)
3657                 *dptr1++ = *dptr2++;
3658
3659         icb->login_retry_count = nv->login_retry_count;
3660         icb->link_down_on_nos = nv->link_down_on_nos;
3661
3662         /* Copy 2nd segment. */
3663         dptr1 = (uint8_t *)&icb->interrupt_delay_timer;
3664         dptr2 = (uint8_t *)&nv->interrupt_delay_timer;
3665         cnt = (uint8_t *)&icb->reserved_3 -
3666             (uint8_t *)&icb->interrupt_delay_timer;
3667         while (cnt--)
3668                 *dptr1++ = *dptr2++;
3669
3670         /*
3671          * Setup driver NVRAM options.
3672          */
3673         qla2x00_set_model_info(vha, nv->model_name, sizeof(nv->model_name),
3674             "QLA2462");
3675
3676         /* Use alternate WWN? */
3677         if (nv->host_p & __constant_cpu_to_le32(BIT_15)) {
3678                 memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
3679                 memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
3680         }
3681
3682         /* Prepare nodename */
3683         if ((icb->firmware_options_1 & __constant_cpu_to_le32(BIT_14)) == 0) {
3684                 /*
3685                  * Firmware will apply the following mask if the nodename was
3686                  * not provided.
3687                  */
3688                 memcpy(icb->node_name, icb->port_name, WWN_SIZE);
3689                 icb->node_name[0] &= 0xF0;
3690         }
3691
3692         /* Set host adapter parameters. */
3693         ha->flags.disable_risc_code_load = 0;
3694         ha->flags.enable_lip_reset = 0;
3695         ha->flags.enable_lip_full_login =
3696             le32_to_cpu(nv->host_p) & BIT_10 ? 1: 0;
3697         ha->flags.enable_target_reset =
3698             le32_to_cpu(nv->host_p) & BIT_11 ? 1: 0;
3699         ha->flags.enable_led_scheme = 0;
3700         ha->flags.disable_serdes = le32_to_cpu(nv->host_p) & BIT_5 ? 1: 0;
3701
3702         ha->operating_mode = (le32_to_cpu(icb->firmware_options_2) &
3703             (BIT_6 | BIT_5 | BIT_4)) >> 4;
3704
3705         memcpy(ha->fw_seriallink_options24, nv->seriallink_options,
3706             sizeof(ha->fw_seriallink_options24));
3707
3708         /* save HBA serial number */
3709         ha->serial0 = icb->port_name[5];
3710         ha->serial1 = icb->port_name[6];
3711         ha->serial2 = icb->port_name[7];
3712         memcpy(vha->node_name, icb->node_name, WWN_SIZE);
3713         memcpy(vha->port_name, icb->port_name, WWN_SIZE);
3714
3715         icb->execution_throttle = __constant_cpu_to_le16(0xFFFF);
3716
3717         ha->retry_count = le16_to_cpu(nv->login_retry_count);
3718
3719         /* Set minimum login_timeout to 4 seconds. */
3720         if (le16_to_cpu(nv->login_timeout) < ql2xlogintimeout)
3721                 nv->login_timeout = cpu_to_le16(ql2xlogintimeout);
3722         if (le16_to_cpu(nv->login_timeout) < 4)
3723                 nv->login_timeout = __constant_cpu_to_le16(4);
3724         ha->login_timeout = le16_to_cpu(nv->login_timeout);
3725         icb->login_timeout = nv->login_timeout;
3726
3727         /* Set minimum RATOV to 100 tenths of a second. */
3728         ha->r_a_tov = 100;
3729
3730         ha->loop_reset_delay = nv->reset_delay;
3731
3732         /* Link Down Timeout = 0:
3733          *
3734          *      When Port Down timer expires we will start returning
3735          *      I/O's to OS with "DID_NO_CONNECT".
3736          *
3737          * Link Down Timeout != 0:
3738          *
3739          *       The driver waits for the link to come up after link down
3740          *       before returning I/Os to OS with "DID_NO_CONNECT".
3741          */
3742         if (le16_to_cpu(nv->link_down_timeout) == 0) {
3743                 ha->loop_down_abort_time =
3744                     (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
3745         } else {
3746                 ha->link_down_timeout = le16_to_cpu(nv->link_down_timeout);
3747                 ha->loop_down_abort_time =
3748                     (LOOP_DOWN_TIME - ha->link_down_timeout);
3749         }
3750
3751         /* Need enough time to try and get the port back. */
3752         ha->port_down_retry_count = le16_to_cpu(nv->port_down_retry_count);
3753         if (qlport_down_retry)
3754                 ha->port_down_retry_count = qlport_down_retry;
3755
3756         /* Set login_retry_count */
3757         ha->login_retry_count  = le16_to_cpu(nv->login_retry_count);
3758         if (ha->port_down_retry_count ==
3759             le16_to_cpu(nv->port_down_retry_count) &&
3760             ha->port_down_retry_count > 3)
3761                 ha->login_retry_count = ha->port_down_retry_count;
3762         else if (ha->port_down_retry_count > (int)ha->login_retry_count)
3763                 ha->login_retry_count = ha->port_down_retry_count;
3764         if (ql2xloginretrycount)
3765                 ha->login_retry_count = ql2xloginretrycount;
3766
3767         /* Enable ZIO. */
3768         if (!vha->flags.init_done) {
3769                 ha->zio_mode = le32_to_cpu(icb->firmware_options_2) &
3770                     (BIT_3 | BIT_2 | BIT_1 | BIT_0);
3771                 ha->zio_timer = le16_to_cpu(icb->interrupt_delay_timer) ?
3772                     le16_to_cpu(icb->interrupt_delay_timer): 2;
3773         }
3774         icb->firmware_options_2 &= __constant_cpu_to_le32(
3775             ~(BIT_3 | BIT_2 | BIT_1 | BIT_0));
3776         vha->flags.process_response_queue = 0;
3777         if (ha->zio_mode != QLA_ZIO_DISABLED) {
3778                 ha->zio_mode = QLA_ZIO_MODE_6;
3779
3780                 DEBUG2(printk("scsi(%ld): ZIO mode %d enabled; timer delay "
3781                     "(%d us).\n", vha->host_no, ha->zio_mode,
3782                     ha->zio_timer * 100));
3783                 qla_printk(KERN_INFO, ha,
3784                     "ZIO mode %d enabled; timer delay (%d us).\n",
3785                     ha->zio_mode, ha->zio_timer * 100);
3786
3787                 icb->firmware_options_2 |= cpu_to_le32(
3788                     (uint32_t)ha->zio_mode);
3789                 icb->interrupt_delay_timer = cpu_to_le16(ha->zio_timer);
3790                 vha->flags.process_response_queue = 1;
3791         }
3792
3793         if (rval) {
3794                 DEBUG2_3(printk(KERN_WARNING
3795                     "scsi(%ld): NVRAM configuration failed!\n", vha->host_no));
3796         }
3797         return (rval);
3798 }
3799
3800 static int
3801 qla24xx_load_risc_flash(scsi_qla_host_t *vha, uint32_t *srisc_addr)
3802 {
3803         int     rval = QLA_SUCCESS;
3804         int     segments, fragment;
3805         uint32_t faddr;
3806         uint32_t *dcode, dlen;
3807         uint32_t risc_addr;
3808         uint32_t risc_size;
3809         uint32_t i;
3810         struct qla_hw_data *ha = vha->hw;
3811         struct req_que *req = ha->req_q_map[0];
3812
3813         qla_printk(KERN_INFO, ha,
3814             "FW: Loading from flash (%x)...\n", ha->flt_region_fw);
3815
3816         rval = QLA_SUCCESS;
3817
3818         segments = FA_RISC_CODE_SEGMENTS;
3819         faddr = ha->flt_region_fw;
3820         dcode = (uint32_t *)req->ring;
3821         *srisc_addr = 0;
3822
3823         /* Validate firmware image by checking version. */
3824         qla24xx_read_flash_data(vha, dcode, faddr + 4, 4);
3825         for (i = 0; i < 4; i++)
3826                 dcode[i] = be32_to_cpu(dcode[i]);
3827         if ((dcode[0] == 0xffffffff && dcode[1] == 0xffffffff &&
3828             dcode[2] == 0xffffffff && dcode[3] == 0xffffffff) ||
3829             (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
3830                 dcode[3] == 0)) {
3831                 qla_printk(KERN_WARNING, ha,
3832                     "Unable to verify integrity of flash firmware image!\n");
3833                 qla_printk(KERN_WARNING, ha,
3834                     "Firmware data: %08x %08x %08x %08x!\n", dcode[0],
3835                     dcode[1], dcode[2], dcode[3]);
3836
3837                 return QLA_FUNCTION_FAILED;
3838         }
3839
3840         while (segments && rval == QLA_SUCCESS) {
3841                 /* Read segment's load information. */
3842                 qla24xx_read_flash_data(vha, dcode, faddr, 4);
3843
3844                 risc_addr = be32_to_cpu(dcode[2]);
3845                 *srisc_addr = *srisc_addr == 0 ? risc_addr : *srisc_addr;
3846                 risc_size = be32_to_cpu(dcode[3]);
3847
3848                 fragment = 0;
3849                 while (risc_size > 0 && rval == QLA_SUCCESS) {
3850                         dlen = (uint32_t)(ha->fw_transfer_size >> 2);
3851                         if (dlen > risc_size)
3852                                 dlen = risc_size;
3853
3854                         DEBUG7(printk("scsi(%ld): Loading risc segment@ risc "
3855                             "addr %x, number of dwords 0x%x, offset 0x%x.\n",
3856                             vha->host_no, risc_addr, dlen, faddr));
3857
3858                         qla24xx_read_flash_data(vha, dcode, faddr, dlen);
3859                         for (i = 0; i < dlen; i++)
3860                                 dcode[i] = swab32(dcode[i]);
3861
3862                         rval = qla2x00_load_ram(vha, req->dma, risc_addr,
3863                             dlen);
3864                         if (rval) {
3865                                 DEBUG(printk("scsi(%ld):[ERROR] Failed to load "
3866                                     "segment %d of firmware\n", vha->host_no,
3867                                     fragment));
3868                                 qla_printk(KERN_WARNING, ha,
3869                                     "[ERROR] Failed to load segment %d of "
3870                                     "firmware\n", fragment);
3871                                 break;
3872                         }
3873
3874                         faddr += dlen;
3875                         risc_addr += dlen;
3876                         risc_size -= dlen;
3877                         fragment++;
3878                 }
3879
3880                 /* Next segment. */
3881                 segments--;
3882         }
3883
3884         return rval;
3885 }
3886
3887 #define QLA_FW_URL "ftp://ftp.qlogic.com/outgoing/linux/firmware/"
3888
3889 int
3890 qla2x00_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
3891 {
3892         int     rval;
3893         int     i, fragment;
3894         uint16_t *wcode, *fwcode;
3895         uint32_t risc_addr, risc_size, fwclen, wlen, *seg;
3896         struct fw_blob *blob;
3897         struct qla_hw_data *ha = vha->hw;
3898         struct req_que *req = ha->req_q_map[0];
3899
3900         /* Load firmware blob. */
3901         blob = qla2x00_request_firmware(vha);
3902         if (!blob) {
3903                 qla_printk(KERN_ERR, ha, "Firmware image unavailable.\n");
3904                 qla_printk(KERN_ERR, ha, "Firmware images can be retrieved "
3905                     "from: " QLA_FW_URL ".\n");
3906                 return QLA_FUNCTION_FAILED;
3907         }
3908
3909         rval = QLA_SUCCESS;
3910
3911         wcode = (uint16_t *)req->ring;
3912         *srisc_addr = 0;
3913         fwcode = (uint16_t *)blob->fw->data;
3914         fwclen = 0;
3915
3916         /* Validate firmware image by checking version. */
3917         if (blob->fw->size < 8 * sizeof(uint16_t)) {
3918                 qla_printk(KERN_WARNING, ha,
3919                     "Unable to verify integrity of firmware image (%Zd)!\n",
3920                     blob->fw->size);
3921                 goto fail_fw_integrity;
3922         }
3923         for (i = 0; i < 4; i++)
3924                 wcode[i] = be16_to_cpu(fwcode[i + 4]);
3925         if ((wcode[0] == 0xffff && wcode[1] == 0xffff && wcode[2] == 0xffff &&
3926             wcode[3] == 0xffff) || (wcode[0] == 0 && wcode[1] == 0 &&
3927                 wcode[2] == 0 && wcode[3] == 0)) {
3928                 qla_printk(KERN_WARNING, ha,
3929                     "Unable to verify integrity of firmware image!\n");
3930                 qla_printk(KERN_WARNING, ha,
3931                     "Firmware data: %04x %04x %04x %04x!\n", wcode[0],
3932                     wcode[1], wcode[2], wcode[3]);
3933                 goto fail_fw_integrity;
3934         }
3935
3936         seg = blob->segs;
3937         while (*seg && rval == QLA_SUCCESS) {
3938                 risc_addr = *seg;
3939                 *srisc_addr = *srisc_addr == 0 ? *seg : *srisc_addr;
3940                 risc_size = be16_to_cpu(fwcode[3]);
3941
3942                 /* Validate firmware image size. */
3943                 fwclen += risc_size * sizeof(uint16_t);
3944                 if (blob->fw->size < fwclen) {
3945                         qla_printk(KERN_WARNING, ha,
3946                             "Unable to verify integrity of firmware image "
3947                             "(%Zd)!\n", blob->fw->size);
3948                         goto fail_fw_integrity;
3949                 }
3950
3951                 fragment = 0;
3952                 while (risc_size > 0 && rval == QLA_SUCCESS) {
3953                         wlen = (uint16_t)(ha->fw_transfer_size >> 1);
3954                         if (wlen > risc_size)
3955                                 wlen = risc_size;
3956
3957                         DEBUG7(printk("scsi(%ld): Loading risc segment@ risc "
3958                             "addr %x, number of words 0x%x.\n", vha->host_no,
3959                             risc_addr, wlen));
3960
3961                         for (i = 0; i < wlen; i++)
3962                                 wcode[i] = swab16(fwcode[i]);
3963
3964                         rval = qla2x00_load_ram(vha, req->dma, risc_addr,
3965                             wlen);
3966                         if (rval) {
3967                                 DEBUG(printk("scsi(%ld):[ERROR] Failed to load "
3968                                     "segment %d of firmware\n", vha->host_no,
3969                                     fragment));
3970                                 qla_printk(KERN_WARNING, ha,
3971                                     "[ERROR] Failed to load segment %d of "
3972                                     "firmware\n", fragment);
3973                                 break;
3974                         }
3975
3976                         fwcode += wlen;
3977                         risc_addr += wlen;
3978                         risc_size -= wlen;
3979                         fragment++;
3980                 }
3981
3982                 /* Next segment. */
3983                 seg++;
3984         }
3985         return rval;
3986
3987 fail_fw_integrity:
3988         return QLA_FUNCTION_FAILED;
3989 }
3990
3991 static int
3992 qla24xx_load_risc_blob(scsi_qla_host_t *vha, uint32_t *srisc_addr)
3993 {
3994         int     rval;
3995         int     segments, fragment;
3996         uint32_t *dcode, dlen;
3997         uint32_t risc_addr;
3998         uint32_t risc_size;
3999         uint32_t i;
4000         struct fw_blob *blob;
4001         uint32_t *fwcode, fwclen;
4002         struct qla_hw_data *ha = vha->hw;
4003         struct req_que *req = ha->req_q_map[0];
4004
4005         /* Load firmware blob. */
4006         blob = qla2x00_request_firmware(vha);
4007         if (!blob) {
4008                 qla_printk(KERN_ERR, ha, "Firmware image unavailable.\n");
4009                 qla_printk(KERN_ERR, ha, "Firmware images can be retrieved "
4010                     "from: " QLA_FW_URL ".\n");
4011
4012                 return QLA_FUNCTION_FAILED;
4013         }
4014
4015         qla_printk(KERN_INFO, ha,
4016             "FW: Loading via request-firmware...\n");
4017
4018         rval = QLA_SUCCESS;
4019
4020         segments = FA_RISC_CODE_SEGMENTS;
4021         dcode = (uint32_t *)req->ring;
4022         *srisc_addr = 0;
4023         fwcode = (uint32_t *)blob->fw->data;
4024         fwclen = 0;
4025
4026         /* Validate firmware image by checking version. */
4027         if (blob->fw->size < 8 * sizeof(uint32_t)) {
4028                 qla_printk(KERN_WARNING, ha,
4029                     "Unable to verify integrity of firmware image (%Zd)!\n",
4030                     blob->fw->size);
4031                 goto fail_fw_integrity;
4032         }
4033         for (i = 0; i < 4; i++)
4034                 dcode[i] = be32_to_cpu(fwcode[i + 4]);
4035         if ((dcode[0] == 0xffffffff && dcode[1] == 0xffffffff &&
4036             dcode[2] == 0xffffffff && dcode[3] == 0xffffffff) ||
4037             (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
4038                 dcode[3] == 0)) {
4039                 qla_printk(KERN_WARNING, ha,
4040                     "Unable to verify integrity of firmware image!\n");
4041                 qla_printk(KERN_WARNING, ha,
4042                     "Firmware data: %08x %08x %08x %08x!\n", dcode[0],
4043                     dcode[1], dcode[2], dcode[3]);
4044                 goto fail_fw_integrity;
4045         }
4046
4047         while (segments && rval == QLA_SUCCESS) {
4048                 risc_addr = be32_to_cpu(fwcode[2]);
4049                 *srisc_addr = *srisc_addr == 0 ? risc_addr : *srisc_addr;
4050                 risc_size = be32_to_cpu(fwcode[3]);
4051
4052                 /* Validate firmware image size. */
4053                 fwclen += risc_size * sizeof(uint32_t);
4054                 if (blob->fw->size < fwclen) {
4055                         qla_printk(KERN_WARNING, ha,
4056                             "Unable to verify integrity of firmware image "
4057                             "(%Zd)!\n", blob->fw->size);
4058
4059                         goto fail_fw_integrity;
4060                 }
4061
4062                 fragment = 0;
4063                 while (risc_size > 0 && rval == QLA_SUCCESS) {
4064                         dlen = (uint32_t)(ha->fw_transfer_size >> 2);
4065                         if (dlen > risc_size)
4066                                 dlen = risc_size;
4067
4068                         DEBUG7(printk("scsi(%ld): Loading risc segment@ risc "
4069                             "addr %x, number of dwords 0x%x.\n", vha->host_no,
4070                             risc_addr, dlen));
4071
4072                         for (i = 0; i < dlen; i++)
4073                                 dcode[i] = swab32(fwcode[i]);
4074
4075                         rval = qla2x00_load_ram(vha, req->dma, risc_addr,
4076                             dlen);
4077                         if (rval) {
4078                                 DEBUG(printk("scsi(%ld):[ERROR] Failed to load "
4079                                     "segment %d of firmware\n", vha->host_no,
4080                                     fragment));
4081                                 qla_printk(KERN_WARNING, ha,
4082                                     "[ERROR] Failed to load segment %d of "
4083                                     "firmware\n", fragment);
4084                                 break;
4085                         }
4086
4087                         fwcode += dlen;
4088                         risc_addr += dlen;
4089                         risc_size -= dlen;
4090                         fragment++;
4091                 }
4092
4093                 /* Next segment. */
4094                 segments--;
4095         }
4096         return rval;
4097
4098 fail_fw_integrity:
4099         return QLA_FUNCTION_FAILED;
4100 }
4101
4102 int
4103 qla24xx_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
4104 {
4105         int rval;
4106
4107         /*
4108          * FW Load priority:
4109          * 1) Firmware via request-firmware interface (.bin file).
4110          * 2) Firmware residing in flash.
4111          */
4112         rval = qla24xx_load_risc_blob(vha, srisc_addr);
4113         if (rval == QLA_SUCCESS)
4114                 return rval;
4115
4116         return qla24xx_load_risc_flash(vha, srisc_addr);
4117 }
4118
4119 int
4120 qla81xx_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
4121 {
4122         int rval;
4123
4124         /*
4125          * FW Load priority:
4126          * 1) Firmware residing in flash.
4127          * 2) Firmware via request-firmware interface (.bin file).
4128          */
4129         rval = qla24xx_load_risc_flash(vha, srisc_addr);
4130         if (rval == QLA_SUCCESS)
4131                 return rval;
4132
4133         return qla24xx_load_risc_blob(vha, srisc_addr);
4134 }
4135
4136 void
4137 qla2x00_try_to_stop_firmware(scsi_qla_host_t *vha)
4138 {
4139         int ret, retries;
4140         struct qla_hw_data *ha = vha->hw;
4141
4142         if (!IS_FWI2_CAPABLE(ha))
4143                 return;
4144         if (!ha->fw_major_version)
4145                 return;
4146
4147         ret = qla2x00_stop_firmware(vha);
4148         for (retries = 5; ret != QLA_SUCCESS && ret != QLA_FUNCTION_TIMEOUT &&
4149             retries ; retries--) {
4150                 ha->isp_ops->reset_chip(vha);
4151                 if (ha->isp_ops->chip_diag(vha) != QLA_SUCCESS)
4152                         continue;
4153                 if (qla2x00_setup_chip(vha) != QLA_SUCCESS)
4154                         continue;
4155                 qla_printk(KERN_INFO, ha,
4156                     "Attempting retry of stop-firmware command...\n");
4157                 ret = qla2x00_stop_firmware(vha);
4158         }
4159 }
4160
4161 int
4162 qla24xx_configure_vhba(scsi_qla_host_t *vha)
4163 {
4164         int rval = QLA_SUCCESS;
4165         uint16_t mb[MAILBOX_REGISTER_COUNT];
4166         struct qla_hw_data *ha = vha->hw;
4167         struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
4168         struct req_que *req = ha->req_q_map[vha->req_ques[0]];
4169         struct rsp_que *rsp = req->rsp;
4170
4171         if (!vha->vp_idx)
4172                 return -EINVAL;
4173
4174         rval = qla2x00_fw_ready(base_vha);
4175         if (rval == QLA_SUCCESS) {
4176                 clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
4177                 qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL);
4178         }
4179
4180         vha->flags.management_server_logged_in = 0;
4181
4182         /* Login to SNS first */
4183         ha->isp_ops->fabric_login(vha, NPH_SNS, 0xff, 0xff, 0xfc, mb, BIT_1);
4184         if (mb[0] != MBS_COMMAND_COMPLETE) {
4185                 DEBUG15(qla_printk(KERN_INFO, ha,
4186                     "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x "
4187                     "mb[2]=%x mb[6]=%x mb[7]=%x\n", NPH_SNS,
4188                     mb[0], mb[1], mb[2], mb[6], mb[7]));
4189                 return (QLA_FUNCTION_FAILED);
4190         }
4191
4192         atomic_set(&vha->loop_down_timer, 0);
4193         atomic_set(&vha->loop_state, LOOP_UP);
4194         set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
4195         set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
4196         rval = qla2x00_loop_resync(base_vha);
4197
4198         return rval;
4199 }
4200
4201 /* 84XX Support **************************************************************/
4202
4203 static LIST_HEAD(qla_cs84xx_list);
4204 static DEFINE_MUTEX(qla_cs84xx_mutex);
4205
4206 static struct qla_chip_state_84xx *
4207 qla84xx_get_chip(struct scsi_qla_host *vha)
4208 {
4209         struct qla_chip_state_84xx *cs84xx;
4210         struct qla_hw_data *ha = vha->hw;
4211
4212         mutex_lock(&qla_cs84xx_mutex);
4213
4214         /* Find any shared 84xx chip. */
4215         list_for_each_entry(cs84xx, &qla_cs84xx_list, list) {
4216                 if (cs84xx->bus == ha->pdev->bus) {
4217                         kref_get(&cs84xx->kref);
4218                         goto done;
4219                 }
4220         }
4221
4222         cs84xx = kzalloc(sizeof(*cs84xx), GFP_KERNEL);
4223         if (!cs84xx)
4224                 goto done;
4225
4226         kref_init(&cs84xx->kref);
4227         spin_lock_init(&cs84xx->access_lock);
4228         mutex_init(&cs84xx->fw_update_mutex);
4229         cs84xx->bus = ha->pdev->bus;
4230
4231         list_add_tail(&cs84xx->list, &qla_cs84xx_list);
4232 done:
4233         mutex_unlock(&qla_cs84xx_mutex);
4234         return cs84xx;
4235 }
4236
4237 static void
4238 __qla84xx_chip_release(struct kref *kref)
4239 {
4240         struct qla_chip_state_84xx *cs84xx =
4241             container_of(kref, struct qla_chip_state_84xx, kref);
4242
4243         mutex_lock(&qla_cs84xx_mutex);
4244         list_del(&cs84xx->list);
4245         mutex_unlock(&qla_cs84xx_mutex);
4246         kfree(cs84xx);
4247 }
4248
4249 void
4250 qla84xx_put_chip(struct scsi_qla_host *vha)
4251 {
4252         struct qla_hw_data *ha = vha->hw;
4253         if (ha->cs84xx)
4254                 kref_put(&ha->cs84xx->kref, __qla84xx_chip_release);
4255 }
4256
4257 static int
4258 qla84xx_init_chip(scsi_qla_host_t *vha)
4259 {
4260         int rval;
4261         uint16_t status[2];
4262         struct qla_hw_data *ha = vha->hw;
4263
4264         mutex_lock(&ha->cs84xx->fw_update_mutex);
4265
4266         rval = qla84xx_verify_chip(vha, status);
4267
4268         mutex_unlock(&ha->cs84xx->fw_update_mutex);
4269
4270         return rval != QLA_SUCCESS || status[0] ? QLA_FUNCTION_FAILED:
4271             QLA_SUCCESS;
4272 }
4273
4274 /* 81XX Support **************************************************************/
4275
4276 int
4277 qla81xx_nvram_config(scsi_qla_host_t *vha)
4278 {
4279         int   rval;
4280         struct init_cb_81xx *icb;
4281         struct nvram_81xx *nv;
4282         uint32_t *dptr;
4283         uint8_t  *dptr1, *dptr2;
4284         uint32_t chksum;
4285         uint16_t cnt;
4286         struct qla_hw_data *ha = vha->hw;
4287
4288         rval = QLA_SUCCESS;
4289         icb = (struct init_cb_81xx *)ha->init_cb;
4290         nv = ha->nvram;
4291
4292         /* Determine NVRAM starting address. */
4293         ha->nvram_size = sizeof(struct nvram_81xx);
4294         ha->vpd_size = FA_NVRAM_VPD_SIZE;
4295
4296         /* Get VPD data into cache */
4297         ha->vpd = ha->nvram + VPD_OFFSET;
4298         ha->isp_ops->read_optrom(vha, ha->vpd, ha->flt_region_vpd << 2,
4299             ha->vpd_size);
4300
4301         /* Get NVRAM data into cache and calculate checksum. */
4302         ha->isp_ops->read_optrom(vha, ha->nvram, ha->flt_region_nvram << 2,
4303             ha->nvram_size);
4304         dptr = (uint32_t *)nv;
4305         for (cnt = 0, chksum = 0; cnt < ha->nvram_size >> 2; cnt++)
4306                 chksum += le32_to_cpu(*dptr++);
4307
4308         DEBUG5(printk("scsi(%ld): Contents of NVRAM\n", ha->host_no));
4309         DEBUG5(qla2x00_dump_buffer((uint8_t *)nv, ha->nvram_size));
4310
4311         /* Bad NVRAM data, set defaults parameters. */
4312         if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' || nv->id[2] != 'P'
4313             || nv->id[3] != ' ' ||
4314             nv->nvram_version < __constant_cpu_to_le16(ICB_VERSION)) {
4315                 /* Reset NVRAM data. */
4316                 qla_printk(KERN_WARNING, ha, "Inconsistent NVRAM detected: "
4317                     "checksum=0x%x id=%c version=0x%x.\n", chksum, nv->id[0],
4318                     le16_to_cpu(nv->nvram_version));
4319                 qla_printk(KERN_WARNING, ha, "Falling back to functioning (yet "
4320                     "invalid -- WWPN) defaults.\n");
4321
4322                 /*
4323                  * Set default initialization control block.
4324                  */
4325                 memset(nv, 0, ha->nvram_size);
4326                 nv->nvram_version = __constant_cpu_to_le16(ICB_VERSION);
4327                 nv->version = __constant_cpu_to_le16(ICB_VERSION);
4328                 nv->frame_payload_size = __constant_cpu_to_le16(2048);
4329                 nv->execution_throttle = __constant_cpu_to_le16(0xFFFF);
4330                 nv->exchange_count = __constant_cpu_to_le16(0);
4331                 nv->port_name[0] = 0x21;
4332                 nv->port_name[1] = 0x00 + PCI_FUNC(ha->pdev->devfn);
4333                 nv->port_name[2] = 0x00;
4334                 nv->port_name[3] = 0xe0;
4335                 nv->port_name[4] = 0x8b;
4336                 nv->port_name[5] = 0x1c;
4337                 nv->port_name[6] = 0x55;
4338                 nv->port_name[7] = 0x86;
4339                 nv->node_name[0] = 0x20;
4340                 nv->node_name[1] = 0x00;
4341                 nv->node_name[2] = 0x00;
4342                 nv->node_name[3] = 0xe0;
4343                 nv->node_name[4] = 0x8b;
4344                 nv->node_name[5] = 0x1c;
4345                 nv->node_name[6] = 0x55;
4346                 nv->node_name[7] = 0x86;
4347                 nv->login_retry_count = __constant_cpu_to_le16(8);
4348                 nv->interrupt_delay_timer = __constant_cpu_to_le16(0);
4349                 nv->login_timeout = __constant_cpu_to_le16(0);
4350                 nv->firmware_options_1 =
4351                     __constant_cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1);
4352                 nv->firmware_options_2 = __constant_cpu_to_le32(2 << 4);
4353                 nv->firmware_options_2 |= __constant_cpu_to_le32(BIT_12);
4354                 nv->firmware_options_3 = __constant_cpu_to_le32(2 << 13);
4355                 nv->host_p = __constant_cpu_to_le32(BIT_11|BIT_10);
4356                 nv->efi_parameters = __constant_cpu_to_le32(0);
4357                 nv->reset_delay = 5;
4358                 nv->max_luns_per_target = __constant_cpu_to_le16(128);
4359                 nv->port_down_retry_count = __constant_cpu_to_le16(30);
4360                 nv->link_down_timeout = __constant_cpu_to_le16(30);
4361                 nv->enode_mac[0] = 0x01;
4362                 nv->enode_mac[1] = 0x02;
4363                 nv->enode_mac[2] = 0x03;
4364                 nv->enode_mac[3] = 0x04;
4365                 nv->enode_mac[4] = 0x05;
4366                 nv->enode_mac[5] = 0x06 + PCI_FUNC(ha->pdev->devfn);
4367
4368                 rval = 1;
4369         }
4370
4371         /* Reset Initialization control block */
4372         memset(icb, 0, sizeof(struct init_cb_81xx));
4373
4374         /* Copy 1st segment. */
4375         dptr1 = (uint8_t *)icb;
4376         dptr2 = (uint8_t *)&nv->version;
4377         cnt = (uint8_t *)&icb->response_q_inpointer - (uint8_t *)&icb->version;
4378         while (cnt--)
4379                 *dptr1++ = *dptr2++;
4380
4381         icb->login_retry_count = nv->login_retry_count;
4382
4383         /* Copy 2nd segment. */
4384         dptr1 = (uint8_t *)&icb->interrupt_delay_timer;
4385         dptr2 = (uint8_t *)&nv->interrupt_delay_timer;
4386         cnt = (uint8_t *)&icb->reserved_5 -
4387             (uint8_t *)&icb->interrupt_delay_timer;
4388         while (cnt--)
4389                 *dptr1++ = *dptr2++;
4390
4391         memcpy(icb->enode_mac, nv->enode_mac, sizeof(icb->enode_mac));
4392         /* Some boards (with valid NVRAMs) still have NULL enode_mac!! */
4393         if (!memcmp(icb->enode_mac, "\0\0\0\0\0\0", sizeof(icb->enode_mac))) {
4394                 icb->enode_mac[0] = 0x01;
4395                 icb->enode_mac[1] = 0x02;
4396                 icb->enode_mac[2] = 0x03;
4397                 icb->enode_mac[3] = 0x04;
4398                 icb->enode_mac[4] = 0x05;
4399                 icb->enode_mac[5] = 0x06 + PCI_FUNC(ha->pdev->devfn);
4400         }
4401
4402         /* Use extended-initialization control block. */
4403         memcpy(ha->ex_init_cb, &nv->ex_version, sizeof(*ha->ex_init_cb));
4404
4405         /*
4406          * Setup driver NVRAM options.
4407          */
4408         qla2x00_set_model_info(vha, nv->model_name, sizeof(nv->model_name),
4409             "QLE81XX");
4410
4411         /* Use alternate WWN? */
4412         if (nv->host_p & __constant_cpu_to_le32(BIT_15)) {
4413                 memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
4414                 memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
4415         }
4416
4417         /* Prepare nodename */
4418         if ((icb->firmware_options_1 & __constant_cpu_to_le32(BIT_14)) == 0) {
4419                 /*
4420                  * Firmware will apply the following mask if the nodename was
4421                  * not provided.
4422                  */
4423                 memcpy(icb->node_name, icb->port_name, WWN_SIZE);
4424                 icb->node_name[0] &= 0xF0;
4425         }
4426
4427         /* Set host adapter parameters. */
4428         ha->flags.disable_risc_code_load = 0;
4429         ha->flags.enable_lip_reset = 0;
4430         ha->flags.enable_lip_full_login =
4431             le32_to_cpu(nv->host_p) & BIT_10 ? 1: 0;
4432         ha->flags.enable_target_reset =
4433             le32_to_cpu(nv->host_p) & BIT_11 ? 1: 0;
4434         ha->flags.enable_led_scheme = 0;
4435         ha->flags.disable_serdes = le32_to_cpu(nv->host_p) & BIT_5 ? 1: 0;
4436
4437         ha->operating_mode = (le32_to_cpu(icb->firmware_options_2) &
4438             (BIT_6 | BIT_5 | BIT_4)) >> 4;
4439
4440         /* save HBA serial number */
4441         ha->serial0 = icb->port_name[5];
4442         ha->serial1 = icb->port_name[6];
4443         ha->serial2 = icb->port_name[7];
4444         memcpy(vha->node_name, icb->node_name, WWN_SIZE);
4445         memcpy(vha->port_name, icb->port_name, WWN_SIZE);
4446
4447         icb->execution_throttle = __constant_cpu_to_le16(0xFFFF);
4448
4449         ha->retry_count = le16_to_cpu(nv->login_retry_count);
4450
4451         /* Set minimum login_timeout to 4 seconds. */
4452         if (le16_to_cpu(nv->login_timeout) < ql2xlogintimeout)
4453                 nv->login_timeout = cpu_to_le16(ql2xlogintimeout);
4454         if (le16_to_cpu(nv->login_timeout) < 4)
4455                 nv->login_timeout = __constant_cpu_to_le16(4);
4456         ha->login_timeout = le16_to_cpu(nv->login_timeout);
4457         icb->login_timeout = nv->login_timeout;
4458
4459         /* Set minimum RATOV to 100 tenths of a second. */
4460         ha->r_a_tov = 100;
4461
4462         ha->loop_reset_delay = nv->reset_delay;
4463
4464         /* Link Down Timeout = 0:
4465          *
4466          *      When Port Down timer expires we will start returning
4467          *      I/O's to OS with "DID_NO_CONNECT".
4468          *
4469          * Link Down Timeout != 0:
4470          *
4471          *       The driver waits for the link to come up after link down
4472          *       before returning I/Os to OS with "DID_NO_CONNECT".
4473          */
4474         if (le16_to_cpu(nv->link_down_timeout) == 0) {
4475                 ha->loop_down_abort_time =
4476                     (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
4477         } else {
4478                 ha->link_down_timeout = le16_to_cpu(nv->link_down_timeout);
4479                 ha->loop_down_abort_time =
4480                     (LOOP_DOWN_TIME - ha->link_down_timeout);
4481         }
4482
4483         /* Need enough time to try and get the port back. */
4484         ha->port_down_retry_count = le16_to_cpu(nv->port_down_retry_count);
4485         if (qlport_down_retry)
4486                 ha->port_down_retry_count = qlport_down_retry;
4487
4488         /* Set login_retry_count */
4489         ha->login_retry_count  = le16_to_cpu(nv->login_retry_count);
4490         if (ha->port_down_retry_count ==
4491             le16_to_cpu(nv->port_down_retry_count) &&
4492             ha->port_down_retry_count > 3)
4493                 ha->login_retry_count = ha->port_down_retry_count;
4494         else if (ha->port_down_retry_count > (int)ha->login_retry_count)
4495                 ha->login_retry_count = ha->port_down_retry_count;
4496         if (ql2xloginretrycount)
4497                 ha->login_retry_count = ql2xloginretrycount;
4498
4499         /* Enable ZIO. */
4500         if (!vha->flags.init_done) {
4501                 ha->zio_mode = le32_to_cpu(icb->firmware_options_2) &
4502                     (BIT_3 | BIT_2 | BIT_1 | BIT_0);
4503                 ha->zio_timer = le16_to_cpu(icb->interrupt_delay_timer) ?
4504                     le16_to_cpu(icb->interrupt_delay_timer): 2;
4505         }
4506         icb->firmware_options_2 &= __constant_cpu_to_le32(
4507             ~(BIT_3 | BIT_2 | BIT_1 | BIT_0));
4508         vha->flags.process_response_queue = 0;
4509         if (ha->zio_mode != QLA_ZIO_DISABLED) {
4510                 ha->zio_mode = QLA_ZIO_MODE_6;
4511
4512                 DEBUG2(printk("scsi(%ld): ZIO mode %d enabled; timer delay "
4513                     "(%d us).\n", vha->host_no, ha->zio_mode,
4514                     ha->zio_timer * 100));
4515                 qla_printk(KERN_INFO, ha,
4516                     "ZIO mode %d enabled; timer delay (%d us).\n",
4517                     ha->zio_mode, ha->zio_timer * 100);
4518
4519                 icb->firmware_options_2 |= cpu_to_le32(
4520                     (uint32_t)ha->zio_mode);
4521                 icb->interrupt_delay_timer = cpu_to_le16(ha->zio_timer);
4522                 vha->flags.process_response_queue = 1;
4523         }
4524
4525         if (rval) {
4526                 DEBUG2_3(printk(KERN_WARNING
4527                     "scsi(%ld): NVRAM configuration failed!\n", vha->host_no));
4528         }
4529         return (rval);
4530 }
4531
4532 void
4533 qla81xx_update_fw_options(scsi_qla_host_t *ha)
4534 {
4535 }