drivers/scsi/qla2xxx/qla_init.c

   1 /*
   2  * QLogic Fibre Channel HBA Driver
   3  * Copyright (c)  2003-2005 QLogic Corporation
   4  *
   5  * See LICENSE.qla2xxx for copyright and licensing details.
   6  */
   7 #include "qla_def.h"
   8
   9 #include <linux/delay.h>
  10 #include <linux/vmalloc.h>
  11
  12 #include "qla_devtbl.h"
  13
  14 #ifdef CONFIG_SPARC
  15 #include <asm/prom.h>
  16 #endif
  17
  18 /* XXX(hch): this is ugly, but we don't want to pull in exioctl.h */
  19 #ifndef EXT_IS_LUN_BIT_SET
  20 #define EXT_IS_LUN_BIT_SET(P,L) \
  21     (((P)->mask[L/8] & (0x80 >> (L%8)))?1:0)
  22 #define EXT_SET_LUN_BIT(P,L) \
  23     ((P)->mask[L/8] |= (0x80 >> (L%8)))
  24 #endif
  25
  26 /*
  27 *  QLogic ISP2x00 Hardware Support Function Prototypes.
  28 */
  29 static int qla2x00_isp_firmware(scsi_qla_host_t *);
  30 static void qla2x00_resize_request_q(scsi_qla_host_t *);
  31 static int qla2x00_setup_chip(scsi_qla_host_t *);
  32 static void qla2x00_init_response_q_entries(scsi_qla_host_t *);
  33 static int qla2x00_init_rings(scsi_qla_host_t *);
  34 static int qla2x00_fw_ready(scsi_qla_host_t *);
  35 static int qla2x00_configure_hba(scsi_qla_host_t *);
  36 static int qla2x00_configure_loop(scsi_qla_host_t *);
  37 static int qla2x00_configure_local_loop(scsi_qla_host_t *);
  38 static int qla2x00_configure_fabric(scsi_qla_host_t *);
  39 static int qla2x00_find_all_fabric_devs(scsi_qla_host_t *, struct list_head *);
  40 static int qla2x00_device_resync(scsi_qla_host_t *);
  41 static int qla2x00_fabric_dev_login(scsi_qla_host_t *, fc_port_t *,
  42     uint16_t *);
  43
  44 static int qla2x00_restart_isp(scsi_qla_host_t *);
  45
  46 static int qla2x00_find_new_loop_id(scsi_qla_host_t *ha, fc_port_t *dev);
  47
  48 /****************************************************************************/
  49 /*                QLogic ISP2x00 Hardware Support Functions.                */
  50 /****************************************************************************/
  51
  52 /*
  53 * qla2x00_initialize_adapter
  54 *      Initialize board.
  55 *
  56 * Input:
  57 *      ha = adapter block pointer.
  58 *
  59 * Returns:
  60 *      0 = success
  61 */
  62 int
  63 qla2x00_initialize_adapter(scsi_qla_host_t *ha)
  64 {
  65         int     rval;
  66
  67         /* Clear adapter flags. */
  68         ha->flags.online = 0;
  69         ha->flags.reset_active = 0;
  70         atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
  71         atomic_set(&ha->loop_state, LOOP_DOWN);
  72         ha->device_flags = DFLG_NO_CABLE;
  73         ha->dpc_flags = 0;
  74         ha->flags.management_server_logged_in = 0;
  75         ha->marker_needed = 0;
  76         ha->mbx_flags = 0;
  77         ha->isp_abort_cnt = 0;
  78         ha->beacon_blink_led = 0;
  79         set_bit(REGISTER_FDMI_NEEDED, &ha->dpc_flags);
  80
  81         qla_printk(KERN_INFO, ha, "Configuring PCI space...\n");
  82         rval = ha->isp_ops->pci_config(ha);
  83         if (rval) {
  84                 DEBUG2(printk("scsi(%ld): Unable to configure PCI space.\n",
  85                     ha->host_no));
  86                 return (rval);
  87         }
  88
  89         ha->isp_ops->reset_chip(ha);
  90
  91         ha->isp_ops->get_flash_version(ha, ha->request_ring);
  92
  93         qla_printk(KERN_INFO, ha, "Configure NVRAM parameters...\n");
  94
  95         ha->isp_ops->nvram_config(ha);
  96
  97         if (ha->flags.disable_serdes) {
  98                 /* Mask HBA via NVRAM settings? */
  99                 qla_printk(KERN_INFO, ha, "Masking HBA WWPN "
 100                     "%02x%02x%02x%02x%02x%02x%02x%02x (via NVRAM).\n",
 101                     ha->port_name[0], ha->port_name[1],
 102                     ha->port_name[2], ha->port_name[3],
 103                     ha->port_name[4], ha->port_name[5],
 104                     ha->port_name[6], ha->port_name[7]);
 105                 return QLA_FUNCTION_FAILED;
 106         }
 107
 108         qla_printk(KERN_INFO, ha, "Verifying loaded RISC code...\n");
 109
 110         if (qla2x00_isp_firmware(ha) != QLA_SUCCESS) {
 111                 rval = ha->isp_ops->chip_diag(ha);
 112                 if (rval)
 113                         return (rval);
 114                 rval = qla2x00_setup_chip(ha);
 115                 if (rval)
 116                         return (rval);
 117         }
 118         rval = qla2x00_init_rings(ha);
 119
 120         return (rval);
 121 }
 122
 123 /**
 124  * qla2100_pci_config() - Setup ISP21xx PCI configuration registers.
 125  * @ha: HA context
 126  *
 127  * Returns 0 on success.
 128  */
 129 int
 130 qla2100_pci_config(scsi_qla_host_t *ha)
 131 {
 132         uint16_t w;
 133         uint32_t d;
 134         unsigned long flags;
 135         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 136
 137         pci_set_master(ha->pdev);
 138         pci_try_set_mwi(ha->pdev);
 139
 140         pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
 141         w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
 142         pci_write_config_word(ha->pdev, PCI_COMMAND, w);
 143
 144         /* Reset expansion ROM address decode enable */
 145         pci_read_config_dword(ha->pdev, PCI_ROM_ADDRESS, &d);
 146         d &= ~PCI_ROM_ADDRESS_ENABLE;
 147         pci_write_config_dword(ha->pdev, PCI_ROM_ADDRESS, d);
 148
 149         /* Get PCI bus information. */
 150         spin_lock_irqsave(&ha->hardware_lock, flags);
 151         ha->pci_attr = RD_REG_WORD(&reg->ctrl_status);
 152         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 153
 154         return QLA_SUCCESS;
 155 }
 156
 157 /**
 158  * qla2300_pci_config() - Setup ISP23xx PCI configuration registers.
 159  * @ha: HA context
 160  *
 161  * Returns 0 on success.
 162  */
 163 int
 164 qla2300_pci_config(scsi_qla_host_t *ha)
 165 {
 166         uint16_t        w;
 167         uint32_t        d;
 168         unsigned long   flags = 0;
 169         uint32_t        cnt;
 170         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 171
 172         pci_set_master(ha->pdev);
 173         pci_try_set_mwi(ha->pdev);
 174
 175         pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
 176         w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
 177
 178         if (IS_QLA2322(ha) || IS_QLA6322(ha))
 179                 w &= ~PCI_COMMAND_INTX_DISABLE;
 180         pci_write_config_word(ha->pdev, PCI_COMMAND, w);
 181
 182         /*
 183          * If this is a 2300 card and not 2312, reset the
 184          * COMMAND_INVALIDATE due to a bug in the 2300. Unfortunately,
 185          * the 2310 also reports itself as a 2300 so we need to get the
 186          * fb revision level -- a 6 indicates it really is a 2300 and
 187          * not a 2310.
 188          */
 189         if (IS_QLA2300(ha)) {
 190                 spin_lock_irqsave(&ha->hardware_lock, flags);
 191
 192                 /* Pause RISC. */
 193                 WRT_REG_WORD(&reg->hccr, HCCR_PAUSE_RISC);
 194                 for (cnt = 0; cnt < 30000; cnt++) {
 195                         if ((RD_REG_WORD(&reg->hccr) & HCCR_RISC_PAUSE) != 0)
 196                                 break;
 197
 198                         udelay(10);
 199                 }
 200
 201                 /* Select FPM registers. */
 202                 WRT_REG_WORD(&reg->ctrl_status, 0x20);
 203                 RD_REG_WORD(&reg->ctrl_status);
 204
 205                 /* Get the fb rev level */
 206                 ha->fb_rev = RD_FB_CMD_REG(ha, reg);
 207
 208                 if (ha->fb_rev == FPM_2300)
 209                         pci_clear_mwi(ha->pdev);
 210
 211                 /* Deselect FPM registers. */
 212                 WRT_REG_WORD(&reg->ctrl_status, 0x0);
 213                 RD_REG_WORD(&reg->ctrl_status);
 214
 215                 /* Release RISC module. */
 216                 WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
 217                 for (cnt = 0; cnt < 30000; cnt++) {
 218                         if ((RD_REG_WORD(&reg->hccr) & HCCR_RISC_PAUSE) == 0)
 219                                 break;
 220
 221                         udelay(10);
 222                 }
 223
 224                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 225         }
 226
 227         pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);
 228
 229         /* Reset expansion ROM address decode enable */
 230         pci_read_config_dword(ha->pdev, PCI_ROM_ADDRESS, &d);
 231         d &= ~PCI_ROM_ADDRESS_ENABLE;
 232         pci_write_config_dword(ha->pdev, PCI_ROM_ADDRESS, d);
 233
 234         /* Get PCI bus information. */
 235         spin_lock_irqsave(&ha->hardware_lock, flags);
 236         ha->pci_attr = RD_REG_WORD(&reg->ctrl_status);
 237         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 238
 239         return QLA_SUCCESS;
 240 }
 241
 242 /**
 243  * qla24xx_pci_config() - Setup ISP24xx PCI configuration registers.
 244  * @ha: HA context
 245  *
 246  * Returns 0 on success.
 247  */
 248 int
 249 qla24xx_pci_config(scsi_qla_host_t *ha)
 250 {
 251         uint16_t w;
 252         uint32_t d;
 253         unsigned long flags = 0;
 254         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
 255
 256         pci_set_master(ha->pdev);
 257         pci_try_set_mwi(ha->pdev);
 258
 259         pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
 260         w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
 261         w &= ~PCI_COMMAND_INTX_DISABLE;
 262         pci_write_config_word(ha->pdev, PCI_COMMAND, w);
 263
 264         pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);
 265
 266         /* PCI-X -- adjust Maximum Memory Read Byte Count (2048). */
 267         if (pci_find_capability(ha->pdev, PCI_CAP_ID_PCIX))
 268                 pcix_set_mmrbc(ha->pdev, 2048);
 269
 270         /* PCIe -- adjust Maximum Read Request Size (2048). */
 271         if (pci_find_capability(ha->pdev, PCI_CAP_ID_EXP))
 272                 pcie_set_readrq(ha->pdev, 2048);
 273
 274         /* Reset expansion ROM address decode enable */
 275         pci_read_config_dword(ha->pdev, PCI_ROM_ADDRESS, &d);
 276         d &= ~PCI_ROM_ADDRESS_ENABLE;
 277         pci_write_config_dword(ha->pdev, PCI_ROM_ADDRESS, d);
 278
 279         ha->chip_revision = ha->pdev->revision;
 280
 281         /* Get PCI bus information. */
 282         spin_lock_irqsave(&ha->hardware_lock, flags);
 283         ha->pci_attr = RD_REG_DWORD(&reg->ctrl_status);
 284         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 285
 286         return QLA_SUCCESS;
 287 }
 288
 289 /**
 290  * qla25xx_pci_config() - Setup ISP25xx PCI configuration registers.
 291  * @ha: HA context
 292  *
 293  * Returns 0 on success.
 294  */
 295 int
 296 qla25xx_pci_config(scsi_qla_host_t *ha)
 297 {
 298         uint16_t w;
 299         uint32_t d;
 300
 301         pci_set_master(ha->pdev);
 302         pci_try_set_mwi(ha->pdev);
 303
 304         pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
 305         w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
 306         w &= ~PCI_COMMAND_INTX_DISABLE;
 307         pci_write_config_word(ha->pdev, PCI_COMMAND, w);
 308
 309         /* PCIe -- adjust Maximum Read Request Size (2048). */
 310         if (pci_find_capability(ha->pdev, PCI_CAP_ID_EXP))
 311                 pcie_set_readrq(ha->pdev, 2048);
 312
 313         /* Reset expansion ROM address decode enable */
 314         pci_read_config_dword(ha->pdev, PCI_ROM_ADDRESS, &d);
 315         d &= ~PCI_ROM_ADDRESS_ENABLE;
 316         pci_write_config_dword(ha->pdev, PCI_ROM_ADDRESS, d);
 317
 318         ha->chip_revision = ha->pdev->revision;
 319
 320         return QLA_SUCCESS;
 321 }
 322
 323 /**
 324  * qla2x00_isp_firmware() - Choose firmware image.
 325  * @ha: HA context
 326  *
 327  * Returns 0 on success.
 328  */
 329 static int
 330 qla2x00_isp_firmware(scsi_qla_host_t *ha)
 331 {
 332         int  rval;
 333
 334         /* Assume loading risc code */
 335         rval = QLA_FUNCTION_FAILED;
 336
 337         if (ha->flags.disable_risc_code_load) {
 338                 DEBUG2(printk("scsi(%ld): RISC CODE NOT loaded\n",
 339                     ha->host_no));
 340                 qla_printk(KERN_INFO, ha, "RISC CODE NOT loaded\n");
 341
 342                 /* Verify checksum of loaded RISC code. */
 343                 rval = qla2x00_verify_checksum(ha, ha->fw_srisc_address);
 344         }
 345
 346         if (rval) {
 347                 DEBUG2_3(printk("scsi(%ld): **** Load RISC code ****\n",
 348                     ha->host_no));
 349         }
 350
 351         return (rval);
 352 }
 353
 354 /**
 355  * qla2x00_reset_chip() - Reset ISP chip.
 356  * @ha: HA context
 357  *
 358  * Returns 0 on success.
 359  */
 360 void
 361 qla2x00_reset_chip(scsi_qla_host_t *ha)
 362 {
 363         unsigned long   flags = 0;
 364         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 365         uint32_t        cnt;
 366         uint16_t        cmd;
 367
 368         ha->isp_ops->disable_intrs(ha);
 369
 370         spin_lock_irqsave(&ha->hardware_lock, flags);
 371
 372         /* Turn off master enable */
 373         cmd = 0;
 374         pci_read_config_word(ha->pdev, PCI_COMMAND, &cmd);
 375         cmd &= ~PCI_COMMAND_MASTER;
 376         pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
 377
 378         if (!IS_QLA2100(ha)) {
 379                 /* Pause RISC. */
 380                 WRT_REG_WORD(&reg->hccr, HCCR_PAUSE_RISC);
 381                 if (IS_QLA2200(ha) || IS_QLA2300(ha)) {
 382                         for (cnt = 0; cnt < 30000; cnt++) {
 383                                 if ((RD_REG_WORD(&reg->hccr) &
 384                                     HCCR_RISC_PAUSE) != 0)
 385                                         break;
 386                                 udelay(100);
 387                         }
 388                 } else {
 389                         RD_REG_WORD(&reg->hccr);        /* PCI Posting. */
 390                         udelay(10);
 391                 }
 392
 393                 /* Select FPM registers. */
 394                 WRT_REG_WORD(&reg->ctrl_status, 0x20);
 395                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
 396
 397                 /* FPM Soft Reset. */
 398                 WRT_REG_WORD(&reg->fpm_diag_config, 0x100);
 399                 RD_REG_WORD(&reg->fpm_diag_config);     /* PCI Posting. */
 400
 401                 /* Toggle Fpm Reset. */
 402                 if (!IS_QLA2200(ha)) {
 403                         WRT_REG_WORD(&reg->fpm_diag_config, 0x0);
 404                         RD_REG_WORD(&reg->fpm_diag_config); /* PCI Posting. */
 405                 }
 406
 407                 /* Select frame buffer registers. */
 408                 WRT_REG_WORD(&reg->ctrl_status, 0x10);
 409                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
 410
 411                 /* Reset frame buffer FIFOs. */
 412                 if (IS_QLA2200(ha)) {
 413                         WRT_FB_CMD_REG(ha, reg, 0xa000);
 414                         RD_FB_CMD_REG(ha, reg);         /* PCI Posting. */
 415                 } else {
 416                         WRT_FB_CMD_REG(ha, reg, 0x00fc);
 417
 418                         /* Read back fb_cmd until zero or 3 seconds max */
 419                         for (cnt = 0; cnt < 3000; cnt++) {
 420                                 if ((RD_FB_CMD_REG(ha, reg) & 0xff) == 0)
 421                                         break;
 422                                 udelay(100);
 423                         }
 424                 }
 425
 426                 /* Select RISC module registers. */
 427                 WRT_REG_WORD(&reg->ctrl_status, 0);
 428                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
 429
 430                 /* Reset RISC processor. */
 431                 WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
 432                 RD_REG_WORD(&reg->hccr);                /* PCI Posting. */
 433
 434                 /* Release RISC processor. */
 435                 WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
 436                 RD_REG_WORD(&reg->hccr);                /* PCI Posting. */
 437         }
 438
 439         WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
 440         WRT_REG_WORD(&reg->hccr, HCCR_CLR_HOST_INT);
 441
 442         /* Reset ISP chip. */
 443         WRT_REG_WORD(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
 444
 445         /* Wait for RISC to recover from reset. */
 446         if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
 447                 /*
 448                  * It is necessary to for a delay here since the card doesn't
 449                  * respond to PCI reads during a reset. On some architectures
 450                  * this will result in an MCA.
 451                  */
 452                 udelay(20);
 453                 for (cnt = 30000; cnt; cnt--) {
 454                         if ((RD_REG_WORD(&reg->ctrl_status) &
 455                             CSR_ISP_SOFT_RESET) == 0)
 456                                 break;
 457                         udelay(100);
 458                 }
 459         } else
 460                 udelay(10);
 461
 462         /* Reset RISC processor. */
 463         WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
 464
 465         WRT_REG_WORD(&reg->semaphore, 0);
 466
 467         /* Release RISC processor. */
 468         WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
 469         RD_REG_WORD(&reg->hccr);                        /* PCI Posting. */
 470
 471         if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
 472                 for (cnt = 0; cnt < 30000; cnt++) {
 473                         if (RD_MAILBOX_REG(ha, reg, 0) != MBS_BUSY)
 474                                 break;
 475
 476                         udelay(100);
 477                 }
 478         } else
 479                 udelay(100);
 480
 481         /* Turn on master enable */
 482         cmd |= PCI_COMMAND_MASTER;
 483         pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
 484
 485         /* Disable RISC pause on FPM parity error. */
 486         if (!IS_QLA2100(ha)) {
 487                 WRT_REG_WORD(&reg->hccr, HCCR_DISABLE_PARITY_PAUSE);
 488                 RD_REG_WORD(&reg->hccr);                /* PCI Posting. */
 489         }
 490
 491         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 492 }
 493
 494 /**
 495  * qla24xx_reset_risc() - Perform full reset of ISP24xx RISC.
 496  * @ha: HA context
 497  *
 498  * Returns 0 on success.
 499  */
 500 static inline void
 501 qla24xx_reset_risc(scsi_qla_host_t *ha)
 502 {
 503         unsigned long flags = 0;
 504         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
 505         uint32_t cnt, d2;
 506         uint16_t wd;
 507
 508         spin_lock_irqsave(&ha->hardware_lock, flags);
 509
 510         /* Reset RISC. */
 511         WRT_REG_DWORD(&reg->ctrl_status, CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
 512         for (cnt = 0; cnt < 30000; cnt++) {
 513                 if ((RD_REG_DWORD(&reg->ctrl_status) & CSRX_DMA_ACTIVE) == 0)
 514                         break;
 515
 516                 udelay(10);
 517         }
 518
 519         WRT_REG_DWORD(&reg->ctrl_status,
 520             CSRX_ISP_SOFT_RESET|CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
 521         pci_read_config_word(ha->pdev, PCI_COMMAND, &wd);
 522
 523         udelay(100);
 524         /* Wait for firmware to complete NVRAM accesses. */
 525         d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
 526         for (cnt = 10000 ; cnt && d2; cnt--) {
 527                 udelay(5);
 528                 d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
 529                 barrier();
 530         }
 531
 532         /* Wait for soft-reset to complete. */
 533         d2 = RD_REG_DWORD(&reg->ctrl_status);
 534         for (cnt = 6000000 ; cnt && (d2 & CSRX_ISP_SOFT_RESET); cnt--) {
 535                 udelay(5);
 536                 d2 = RD_REG_DWORD(&reg->ctrl_status);
 537                 barrier();
 538         }
 539
 540         WRT_REG_DWORD(&reg->hccr, HCCRX_SET_RISC_RESET);
 541         RD_REG_DWORD(&reg->hccr);
 542
 543         WRT_REG_DWORD(&reg->hccr, HCCRX_REL_RISC_PAUSE);
 544         RD_REG_DWORD(&reg->hccr);
 545
 546         WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_RESET);
 547         RD_REG_DWORD(&reg->hccr);
 548
 549         d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
 550         for (cnt = 6000000 ; cnt && d2; cnt--) {
 551                 udelay(5);
 552                 d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
 553                 barrier();
 554         }
 555
 556         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 557 }
 558
 559 /**
 560  * qla24xx_reset_chip() - Reset ISP24xx chip.
 561  * @ha: HA context
 562  *
 563  * Returns 0 on success.
 564  */
 565 void
 566 qla24xx_reset_chip(scsi_qla_host_t *ha)
 567 {
 568         ha->isp_ops->disable_intrs(ha);
 569
 570         /* Perform RISC reset. */
 571         qla24xx_reset_risc(ha);
 572 }
 573
 574 /**
 575  * qla2x00_chip_diag() - Test chip for proper operation.
 576  * @ha: HA context
 577  *
 578  * Returns 0 on success.
 579  */
 580 int
 581 qla2x00_chip_diag(scsi_qla_host_t *ha)
 582 {
 583         int             rval;
 584         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 585         unsigned long   flags = 0;
 586         uint16_t        data;
 587         uint32_t        cnt;
 588         uint16_t        mb[5];
 589
 590         /* Assume a failed state */
 591         rval = QLA_FUNCTION_FAILED;
 592
 593         DEBUG3(printk("scsi(%ld): Testing device at %lx.\n",
 594             ha->host_no, (u_long)&reg->flash_address));
 595
 596         spin_lock_irqsave(&ha->hardware_lock, flags);
 597
 598         /* Reset ISP chip. */
 599         WRT_REG_WORD(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
 600
 601         /*
 602          * We need to have a delay here since the card will not respond while
 603          * in reset causing an MCA on some architectures.
 604          */
 605         udelay(20);
 606         data = qla2x00_debounce_register(&reg->ctrl_status);
 607         for (cnt = 6000000 ; cnt && (data & CSR_ISP_SOFT_RESET); cnt--) {
 608                 udelay(5);
 609                 data = RD_REG_WORD(&reg->ctrl_status);
 610                 barrier();
 611         }
 612
 613         if (!cnt)
 614                 goto chip_diag_failed;
 615
 616         DEBUG3(printk("scsi(%ld): Reset register cleared by chip reset\n",
 617             ha->host_no));
 618
 619         /* Reset RISC processor. */
 620         WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
 621         WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
 622
 623         /* Workaround for QLA2312 PCI parity error */
 624         if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
 625                 data = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 0));
 626                 for (cnt = 6000000; cnt && (data == MBS_BUSY); cnt--) {
 627                         udelay(5);
 628                         data = RD_MAILBOX_REG(ha, reg, 0);
 629                         barrier();
 630                 }
 631         } else
 632                 udelay(10);
 633
 634         if (!cnt)
 635                 goto chip_diag_failed;
 636
 637         /* Check product ID of chip */
 638         DEBUG3(printk("scsi(%ld): Checking product ID of chip\n", ha->host_no));
 639
 640         mb[1] = RD_MAILBOX_REG(ha, reg, 1);
 641         mb[2] = RD_MAILBOX_REG(ha, reg, 2);
 642         mb[3] = RD_MAILBOX_REG(ha, reg, 3);
 643         mb[4] = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 4));
 644         if (mb[1] != PROD_ID_1 || (mb[2] != PROD_ID_2 && mb[2] != PROD_ID_2a) ||
 645             mb[3] != PROD_ID_3) {
 646                 qla_printk(KERN_WARNING, ha,
 647                     "Wrong product ID = 0x%x,0x%x,0x%x\n", mb[1], mb[2], mb[3]);
 648
 649                 goto chip_diag_failed;
 650         }
 651         ha->product_id[0] = mb[1];
 652         ha->product_id[1] = mb[2];
 653         ha->product_id[2] = mb[3];
 654         ha->product_id[3] = mb[4];
 655
 656         /* Adjust fw RISC transfer size */
 657         if (ha->request_q_length > 1024)
 658                 ha->fw_transfer_size = REQUEST_ENTRY_SIZE * 1024;
 659         else
 660                 ha->fw_transfer_size = REQUEST_ENTRY_SIZE *
 661                     ha->request_q_length;
 662
 663         if (IS_QLA2200(ha) &&
 664             RD_MAILBOX_REG(ha, reg, 7) == QLA2200A_RISC_ROM_VER) {
 665                 /* Limit firmware transfer size with a 2200A */
 666                 DEBUG3(printk("scsi(%ld): Found QLA2200A chip.\n",
 667                     ha->host_no));
 668
 669                 ha->device_type |= DT_ISP2200A;
 670                 ha->fw_transfer_size = 128;
 671         }
 672
 673         /* Wrap Incoming Mailboxes Test. */
 674         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 675
 676         DEBUG3(printk("scsi(%ld): Checking mailboxes.\n", ha->host_no));
 677         rval = qla2x00_mbx_reg_test(ha);
 678         if (rval) {
 679                 DEBUG(printk("scsi(%ld): Failed mailbox send register test\n",
 680                     ha->host_no));
 681                 qla_printk(KERN_WARNING, ha,
 682                     "Failed mailbox send register test\n");
 683         }
 684         else {
 685                 /* Flag a successful rval */
 686                 rval = QLA_SUCCESS;
 687         }
 688         spin_lock_irqsave(&ha->hardware_lock, flags);
 689
 690 chip_diag_failed:
 691         if (rval)
 692                 DEBUG2_3(printk("scsi(%ld): Chip diagnostics **** FAILED "
 693                     "****\n", ha->host_no));
 694
 695         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 696
 697         return (rval);
 698 }
 699
 700 /**
 701  * qla24xx_chip_diag() - Test ISP24xx for proper operation.
 702  * @ha: HA context
 703  *
 704  * Returns 0 on success.
 705  */
 706 int
 707 qla24xx_chip_diag(scsi_qla_host_t *ha)
 708 {
 709         int rval;
 710
 711         /* Perform RISC reset. */
 712         qla24xx_reset_risc(ha);
 713
 714         ha->fw_transfer_size = REQUEST_ENTRY_SIZE * 1024;
 715
 716         rval = qla2x00_mbx_reg_test(ha);
 717         if (rval) {
 718                 DEBUG(printk("scsi(%ld): Failed mailbox send register test\n",
 719                     ha->host_no));
 720                 qla_printk(KERN_WARNING, ha,
 721                     "Failed mailbox send register test\n");
 722         } else {
 723                 /* Flag a successful rval */
 724                 rval = QLA_SUCCESS;
 725         }
 726
 727         return rval;
 728 }
 729
 730 void
 731 qla2x00_alloc_fw_dump(scsi_qla_host_t *ha)
 732 {
 733         int rval;
 734         uint32_t dump_size, fixed_size, mem_size, req_q_size, rsp_q_size,
 735             eft_size;
 736         dma_addr_t eft_dma;
 737         void *eft;
 738
 739         if (ha->fw_dump) {
 740                 qla_printk(KERN_WARNING, ha,
 741                     "Firmware dump previously allocated.\n");
 742                 return;
 743         }
 744
 745         ha->fw_dumped = 0;
 746         fixed_size = mem_size = eft_size = 0;
 747         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
 748                 fixed_size = sizeof(struct qla2100_fw_dump);
 749         } else if (IS_QLA23XX(ha)) {
 750                 fixed_size = offsetof(struct qla2300_fw_dump, data_ram);
 751                 mem_size = (ha->fw_memory_size - 0x11000 + 1) *
 752                     sizeof(uint16_t);
 753         } else if (IS_FWI2_CAPABLE(ha)) {
 754                 fixed_size = IS_QLA25XX(ha) ?
 755                     offsetof(struct qla25xx_fw_dump, ext_mem):
 756                     offsetof(struct qla24xx_fw_dump, ext_mem);
 757                 mem_size = (ha->fw_memory_size - 0x100000 + 1) *
 758                     sizeof(uint32_t);
 759
 760                 /* Allocate memory for Extended Trace Buffer. */
 761                 eft = dma_alloc_coherent(&ha->pdev->dev, EFT_SIZE, &eft_dma,
 762                     GFP_KERNEL);
 763                 if (!eft) {
 764                         qla_printk(KERN_WARNING, ha, "Unable to allocate "
 765                             "(%d KB) for EFT.\n", EFT_SIZE / 1024);
 766                         goto cont_alloc;
 767                 }
 768
 769                 rval = qla2x00_trace_control(ha, TC_ENABLE, eft_dma,
 770                     EFT_NUM_BUFFERS);
 771                 if (rval) {
 772                         qla_printk(KERN_WARNING, ha, "Unable to initialize "
 773                             "EFT (%d).\n", rval);
 774                         dma_free_coherent(&ha->pdev->dev, EFT_SIZE, eft,
 775                             eft_dma);
 776                         goto cont_alloc;
 777                 }
 778
 779                 qla_printk(KERN_INFO, ha, "Allocated (%d KB) for EFT...\n",
 780                     EFT_SIZE / 1024);
 781
 782                 eft_size = EFT_SIZE;
 783                 memset(eft, 0, eft_size);
 784                 ha->eft_dma = eft_dma;
 785                 ha->eft = eft;
 786         }
 787 cont_alloc:
 788         req_q_size = ha->request_q_length * sizeof(request_t);
 789         rsp_q_size = ha->response_q_length * sizeof(response_t);
 790
 791         dump_size = offsetof(struct qla2xxx_fw_dump, isp);
 792         dump_size += fixed_size + mem_size + req_q_size + rsp_q_size +
 793             eft_size;
 794
 795         ha->fw_dump = vmalloc(dump_size);
 796         if (!ha->fw_dump) {
 797                 qla_printk(KERN_WARNING, ha, "Unable to allocate (%d KB) for "
 798                     "firmware dump!!!\n", dump_size / 1024);
 799
 800                 if (ha->eft) {
 801                         dma_free_coherent(&ha->pdev->dev, eft_size, ha->eft,
 802                             ha->eft_dma);
 803                         ha->eft = NULL;
 804                         ha->eft_dma = 0;
 805                 }
 806                 return;
 807         }
 808
 809         qla_printk(KERN_INFO, ha, "Allocated (%d KB) for firmware dump...\n",
 810             dump_size / 1024);
 811
 812         ha->fw_dump_len = dump_size;
 813         ha->fw_dump->signature[0] = 'Q';
 814         ha->fw_dump->signature[1] = 'L';
 815         ha->fw_dump->signature[2] = 'G';
 816         ha->fw_dump->signature[3] = 'C';
 817         ha->fw_dump->version = __constant_htonl(1);
 818
 819         ha->fw_dump->fixed_size = htonl(fixed_size);
 820         ha->fw_dump->mem_size = htonl(mem_size);
 821         ha->fw_dump->req_q_size = htonl(req_q_size);
 822         ha->fw_dump->rsp_q_size = htonl(rsp_q_size);
 823
 824         ha->fw_dump->eft_size = htonl(eft_size);
 825         ha->fw_dump->eft_addr_l = htonl(LSD(ha->eft_dma));
 826         ha->fw_dump->eft_addr_h = htonl(MSD(ha->eft_dma));
 827
 828         ha->fw_dump->header_size =
 829             htonl(offsetof(struct qla2xxx_fw_dump, isp));
 830 }
 831
 832 /**
 833  * qla2x00_resize_request_q() - Resize request queue given available ISP memory.
 834  * @ha: HA context
 835  *
 836  * Returns 0 on success.
 837  */
 838 static void
 839 qla2x00_resize_request_q(scsi_qla_host_t *ha)
 840 {
 841         int rval;
 842         uint16_t fw_iocb_cnt = 0;
 843         uint16_t request_q_length = REQUEST_ENTRY_CNT_2XXX_EXT_MEM;
 844         dma_addr_t request_dma;
 845         request_t *request_ring;
 846
 847         /* Valid only on recent ISPs. */
 848         if (IS_QLA2100(ha) || IS_QLA2200(ha))
 849                 return;
 850
 851         /* Retrieve IOCB counts available to the firmware. */
 852         rval = qla2x00_get_resource_cnts(ha, NULL, NULL, NULL, &fw_iocb_cnt);
 853         if (rval)
 854                 return;
 855         /* No point in continuing if current settings are sufficient. */
 856         if (fw_iocb_cnt < 1024)
 857                 return;
 858         if (ha->request_q_length >= request_q_length)
 859                 return;
 860
 861         /* Attempt to claim larger area for request queue. */
 862         request_ring = dma_alloc_coherent(&ha->pdev->dev,
 863             (request_q_length + 1) * sizeof(request_t), &request_dma,
 864             GFP_KERNEL);
 865         if (request_ring == NULL)
 866                 return;
 867
 868         /* Resize successful, report extensions. */
 869         qla_printk(KERN_INFO, ha, "Extended memory detected (%d KB)...\n",
 870             (ha->fw_memory_size + 1) / 1024);
 871         qla_printk(KERN_INFO, ha, "Resizing request queue depth "
 872             "(%d -> %d)...\n", ha->request_q_length, request_q_length);
 873
 874         /* Clear old allocations. */
 875         dma_free_coherent(&ha->pdev->dev,
 876             (ha->request_q_length + 1) * sizeof(request_t), ha->request_ring,
 877             ha->request_dma);
 878
 879         /* Begin using larger queue. */
 880         ha->request_q_length = request_q_length;
 881         ha->request_ring = request_ring;
 882         ha->request_dma = request_dma;
 883 }
 884
 885 /**
 886  * qla2x00_setup_chip() - Load and start RISC firmware.
 887  * @ha: HA context
 888  *
 889  * Returns 0 on success.
 890  */
 891 static int
 892 qla2x00_setup_chip(scsi_qla_host_t *ha)
 893 {
 894         int rval;
 895         uint32_t srisc_address = 0;
 896
 897         /* Load firmware sequences */
 898         rval = ha->isp_ops->load_risc(ha, &srisc_address);
 899         if (rval == QLA_SUCCESS) {
 900                 DEBUG(printk("scsi(%ld): Verifying Checksum of loaded RISC "
 901                     "code.\n", ha->host_no));
 902
 903                 rval = qla2x00_verify_checksum(ha, srisc_address);
 904                 if (rval == QLA_SUCCESS) {
 905                         /* Start firmware execution. */
 906                         DEBUG(printk("scsi(%ld): Checksum OK, start "
 907                             "firmware.\n", ha->host_no));
 908
 909                         rval = qla2x00_execute_fw(ha, srisc_address);
 910                         /* Retrieve firmware information. */
 911                         if (rval == QLA_SUCCESS && ha->fw_major_version == 0) {
 912                                 qla2x00_get_fw_version(ha,
 913                                     &ha->fw_major_version,
 914                                     &ha->fw_minor_version,
 915                                     &ha->fw_subminor_version,
 916                                     &ha->fw_attributes, &ha->fw_memory_size);
 917                                 qla2x00_resize_request_q(ha);
 918                                 ha->flags.npiv_supported = 0;
 919                                 if (IS_QLA24XX(ha) &&
 920                                     (ha->fw_attributes & BIT_2))
 921                                         ha->flags.npiv_supported = 1;
 922
 923                                 if (ql2xallocfwdump)
 924                                         qla2x00_alloc_fw_dump(ha);
 925                         }
 926                 } else {
 927                         DEBUG2(printk(KERN_INFO
 928                             "scsi(%ld): ISP Firmware failed checksum.\n",
 929                             ha->host_no));
 930                 }
 931         }
 932
 933         if (rval) {
 934                 DEBUG2_3(printk("scsi(%ld): Setup chip **** FAILED ****.\n",
 935                     ha->host_no));
 936         }
 937
 938         return (rval);
 939 }
 940
 941 /**
 942  * qla2x00_init_response_q_entries() - Initializes response queue entries.
 943  * @ha: HA context
 944  *
 945  * Beginning of request ring has initialization control block already built
 946  * by nvram config routine.
 947  *
 948  * Returns 0 on success.
 949  */
 950 static void
 951 qla2x00_init_response_q_entries(scsi_qla_host_t *ha)
 952 {
 953         uint16_t cnt;
 954         response_t *pkt;
 955
 956         pkt = ha->response_ring_ptr;
 957         for (cnt = 0; cnt < ha->response_q_length; cnt++) {
 958                 pkt->signature = RESPONSE_PROCESSED;
 959                 pkt++;
 960         }
 961
 962 }
 963
 964 /**
 965  * qla2x00_update_fw_options() - Read and process firmware options.
 966  * @ha: HA context
 967  *
 968  * Returns 0 on success.
 969  */
 970 void
 971 qla2x00_update_fw_options(scsi_qla_host_t *ha)
 972 {
 973         uint16_t swing, emphasis, tx_sens, rx_sens;
 974
 975         memset(ha->fw_options, 0, sizeof(ha->fw_options));
 976         qla2x00_get_fw_options(ha, ha->fw_options);
 977
 978         if (IS_QLA2100(ha) || IS_QLA2200(ha))
 979                 return;
 980
 981         /* Serial Link options. */
 982         DEBUG3(printk("scsi(%ld): Serial link options:\n",
 983             ha->host_no));
 984         DEBUG3(qla2x00_dump_buffer((uint8_t *)&ha->fw_seriallink_options,
 985             sizeof(ha->fw_seriallink_options)));
 986
 987         ha->fw_options[1] &= ~FO1_SET_EMPHASIS_SWING;
 988         if (ha->fw_seriallink_options[3] & BIT_2) {
 989                 ha->fw_options[1] |= FO1_SET_EMPHASIS_SWING;
 990
 991                 /*  1G settings */
 992                 swing = ha->fw_seriallink_options[2] & (BIT_2 | BIT_1 | BIT_0);
 993                 emphasis = (ha->fw_seriallink_options[2] &
 994                     (BIT_4 | BIT_3)) >> 3;
 995                 tx_sens = ha->fw_seriallink_options[0] &
 996                     (BIT_3 | BIT_2 | BIT_1 | BIT_0);
 997                 rx_sens = (ha->fw_seriallink_options[0] &
 998                     (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
 999                 ha->fw_options[10] = (emphasis << 14) | (swing << 8);
1000                 if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
1001                         if (rx_sens == 0x0)
1002                                 rx_sens = 0x3;
1003                         ha->fw_options[10] |= (tx_sens << 4) | rx_sens;
1004                 } else if (IS_QLA2322(ha) || IS_QLA6322(ha))
1005                         ha->fw_options[10] |= BIT_5 |
1006                             ((rx_sens & (BIT_1 | BIT_0)) << 2) |
1007                             (tx_sens & (BIT_1 | BIT_0));
1008
1009                 /*  2G settings */
1010                 swing = (ha->fw_seriallink_options[2] &
1011                     (BIT_7 | BIT_6 | BIT_5)) >> 5;
1012                 emphasis = ha->fw_seriallink_options[3] & (BIT_1 | BIT_0);
1013                 tx_sens = ha->fw_seriallink_options[1] &
1014                     (BIT_3 | BIT_2 | BIT_1 | BIT_0);
1015                 rx_sens = (ha->fw_seriallink_options[1] &
1016                     (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
1017                 ha->fw_options[11] = (emphasis << 14) | (swing << 8);
1018                 if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
1019                         if (rx_sens == 0x0)
1020                                 rx_sens = 0x3;
1021                         ha->fw_options[11] |= (tx_sens << 4) | rx_sens;
1022                 } else if (IS_QLA2322(ha) || IS_QLA6322(ha))
1023                         ha->fw_options[11] |= BIT_5 |
1024                             ((rx_sens & (BIT_1 | BIT_0)) << 2) |
1025                             (tx_sens & (BIT_1 | BIT_0));
1026         }
1027
1028         /* FCP2 options. */
1029         /*  Return command IOCBs without waiting for an ABTS to complete. */
1030         ha->fw_options[3] |= BIT_13;
1031
1032         /* LED scheme. */
1033         if (ha->flags.enable_led_scheme)
1034                 ha->fw_options[2] |= BIT_12;
1035
1036         /* Detect ISP6312. */
1037         if (IS_QLA6312(ha))
1038                 ha->fw_options[2] |= BIT_13;
1039
1040         /* Update firmware options. */
1041         qla2x00_set_fw_options(ha, ha->fw_options);
1042 }
1043
1044 void
1045 qla24xx_update_fw_options(scsi_qla_host_t *ha)
1046 {
1047         int rval;
1048
1049         /* Update Serial Link options. */
1050         if ((le16_to_cpu(ha->fw_seriallink_options24[0]) & BIT_0) == 0)
1051                 return;
1052
1053         rval = qla2x00_set_serdes_params(ha,
1054             le16_to_cpu(ha->fw_seriallink_options24[1]),
1055             le16_to_cpu(ha->fw_seriallink_options24[2]),
1056             le16_to_cpu(ha->fw_seriallink_options24[3]));
1057         if (rval != QLA_SUCCESS) {
1058                 qla_printk(KERN_WARNING, ha,
1059                     "Unable to update Serial Link options (%x).\n", rval);
1060         }
1061 }
1062
1063 void
1064 qla2x00_config_rings(struct scsi_qla_host *ha)
1065 {
1066         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1067
1068         /* Setup ring parameters in initialization control block. */
1069         ha->init_cb->request_q_outpointer = __constant_cpu_to_le16(0);
1070         ha->init_cb->response_q_inpointer = __constant_cpu_to_le16(0);
1071         ha->init_cb->request_q_length = cpu_to_le16(ha->request_q_length);
1072         ha->init_cb->response_q_length = cpu_to_le16(ha->response_q_length);
1073         ha->init_cb->request_q_address[0] = cpu_to_le32(LSD(ha->request_dma));
1074         ha->init_cb->request_q_address[1] = cpu_to_le32(MSD(ha->request_dma));
1075         ha->init_cb->response_q_address[0] = cpu_to_le32(LSD(ha->response_dma));
1076         ha->init_cb->response_q_address[1] = cpu_to_le32(MSD(ha->response_dma));
1077
1078         WRT_REG_WORD(ISP_REQ_Q_IN(ha, reg), 0);
1079         WRT_REG_WORD(ISP_REQ_Q_OUT(ha, reg), 0);
1080         WRT_REG_WORD(ISP_RSP_Q_IN(ha, reg), 0);
1081         WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), 0);
1082         RD_REG_WORD(ISP_RSP_Q_OUT(ha, reg));            /* PCI Posting. */
1083 }
1084
1085 void
1086 qla24xx_config_rings(struct scsi_qla_host *ha)
1087 {
1088         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1089         struct init_cb_24xx *icb;
1090
1091         /* Setup ring parameters in initialization control block. */
1092         icb = (struct init_cb_24xx *)ha->init_cb;
1093         icb->request_q_outpointer = __constant_cpu_to_le16(0);
1094         icb->response_q_inpointer = __constant_cpu_to_le16(0);
1095         icb->request_q_length = cpu_to_le16(ha->request_q_length);
1096         icb->response_q_length = cpu_to_le16(ha->response_q_length);
1097         icb->request_q_address[0] = cpu_to_le32(LSD(ha->request_dma));
1098         icb->request_q_address[1] = cpu_to_le32(MSD(ha->request_dma));
1099         icb->response_q_address[0] = cpu_to_le32(LSD(ha->response_dma));
1100         icb->response_q_address[1] = cpu_to_le32(MSD(ha->response_dma));
1101
1102         WRT_REG_DWORD(&reg->req_q_in, 0);
1103         WRT_REG_DWORD(&reg->req_q_out, 0);
1104         WRT_REG_DWORD(&reg->rsp_q_in, 0);
1105         WRT_REG_DWORD(&reg->rsp_q_out, 0);
1106         RD_REG_DWORD(&reg->rsp_q_out);
1107 }
1108
1109 /**
1110  * qla2x00_init_rings() - Initializes firmware.
1111  * @ha: HA context
1112  *
1113  * Beginning of request ring has initialization control block already built
1114  * by nvram config routine.
1115  *
1116  * Returns 0 on success.
1117  */
1118 static int
1119 qla2x00_init_rings(scsi_qla_host_t *ha)
1120 {
1121         int     rval;
1122         unsigned long flags = 0;
1123         int cnt;
1124         struct mid_init_cb_24xx *mid_init_cb =
1125             (struct mid_init_cb_24xx *) ha->init_cb;
1126
1127         spin_lock_irqsave(&ha->hardware_lock, flags);
1128
1129         /* Clear outstanding commands array. */
1130         for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++)
1131                 ha->outstanding_cmds[cnt] = NULL;
1132
1133         ha->current_outstanding_cmd = 0;
1134
1135         /* Clear RSCN queue. */
1136         ha->rscn_in_ptr = 0;
1137         ha->rscn_out_ptr = 0;
1138
1139         /* Initialize firmware. */
1140         ha->request_ring_ptr  = ha->request_ring;
1141         ha->req_ring_index    = 0;
1142         ha->req_q_cnt         = ha->request_q_length;
1143         ha->response_ring_ptr = ha->response_ring;
1144         ha->rsp_ring_index    = 0;
1145
1146         /* Initialize response queue entries */
1147         qla2x00_init_response_q_entries(ha);
1148
1149         ha->isp_ops->config_rings(ha);
1150
1151         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1152
1153         /* Update any ISP specific firmware options before initialization. */
1154         ha->isp_ops->update_fw_options(ha);
1155
1156         DEBUG(printk("scsi(%ld): Issue init firmware.\n", ha->host_no));
1157
1158         mid_init_cb->count = MAX_NUM_VPORT_FABRIC;
1159         ha->max_npiv_vports = MAX_NUM_VPORT_FABRIC;
1160
1161         rval = qla2x00_init_firmware(ha, ha->init_cb_size);
1162         if (rval) {
1163                 DEBUG2_3(printk("scsi(%ld): Init firmware **** FAILED ****.\n",
1164                     ha->host_no));
1165         } else {
1166                 DEBUG3(printk("scsi(%ld): Init firmware -- success.\n",
1167                     ha->host_no));
1168         }
1169
1170         return (rval);
1171 }
1172
1173 /**
1174  * qla2x00_fw_ready() - Waits for firmware ready.
1175  * @ha: HA context
1176  *
1177  * Returns 0 on success.
1178  */
1179 static int
1180 qla2x00_fw_ready(scsi_qla_host_t *ha)
1181 {
1182         int             rval;
1183         unsigned long   wtime, mtime;
1184         uint16_t        min_wait;       /* Minimum wait time if loop is down */
1185         uint16_t        wait_time;      /* Wait time if loop is coming ready */
1186         uint16_t        fw_state;
1187
1188         rval = QLA_SUCCESS;
1189
1190         /* 20 seconds for loop down. */
1191         min_wait = 20;
1192
1193         /*
1194          * Firmware should take at most one RATOV to login, plus 5 seconds for
1195          * our own processing.
1196          */
1197         if ((wait_time = (ha->retry_count*ha->login_timeout) + 5) < min_wait) {
1198                 wait_time = min_wait;
1199         }
1200
1201         /* Min wait time if loop down */
1202         mtime = jiffies + (min_wait * HZ);
1203
1204         /* wait time before firmware ready */
1205         wtime = jiffies + (wait_time * HZ);
1206
1207         /* Wait for ISP to finish LIP */
1208         if (!ha->flags.init_done)
1209                 qla_printk(KERN_INFO, ha, "Waiting for LIP to complete...\n");
1210
1211         DEBUG3(printk("scsi(%ld): Waiting for LIP to complete...\n",
1212             ha->host_no));
1213
1214         do {
1215                 rval = qla2x00_get_firmware_state(ha, &fw_state);
1216                 if (rval == QLA_SUCCESS) {
1217                         if (fw_state < FSTATE_LOSS_OF_SYNC) {
1218                                 ha->device_flags &= ~DFLG_NO_CABLE;
1219                         }
1220                         if (fw_state == FSTATE_READY) {
1221                                 DEBUG(printk("scsi(%ld): F/W Ready - OK \n",
1222                                     ha->host_no));
1223
1224                                 qla2x00_get_retry_cnt(ha, &ha->retry_count,
1225                                     &ha->login_timeout, &ha->r_a_tov);
1226
1227                                 rval = QLA_SUCCESS;
1228                                 break;
1229                         }
1230
1231                         rval = QLA_FUNCTION_FAILED;
1232
1233                         if (atomic_read(&ha->loop_down_timer) &&
1234                             fw_state != FSTATE_READY) {
1235                                 /* Loop down. Timeout on min_wait for states
1236                                  * other than Wait for Login.
1237                                  */
1238                                 if (time_after_eq(jiffies, mtime)) {
1239                                         qla_printk(KERN_INFO, ha,
1240                                             "Cable is unplugged...\n");
1241
1242                                         ha->device_flags |= DFLG_NO_CABLE;
1243                                         break;
1244                                 }
1245                         }
1246                 } else {
1247                         /* Mailbox cmd failed. Timeout on min_wait. */
1248                         if (time_after_eq(jiffies, mtime))
1249                                 break;
1250                 }
1251
1252                 if (time_after_eq(jiffies, wtime))
1253                         break;
1254
1255                 /* Delay for a while */
1256                 msleep(500);
1257
1258                 DEBUG3(printk("scsi(%ld): fw_state=%x curr time=%lx.\n",
1259                     ha->host_no, fw_state, jiffies));
1260         } while (1);
1261
1262         DEBUG(printk("scsi(%ld): fw_state=%x curr time=%lx.\n",
1263             ha->host_no, fw_state, jiffies));
1264
1265         if (rval) {
1266                 DEBUG2_3(printk("scsi(%ld): Firmware ready **** FAILED ****.\n",
1267                     ha->host_no));
1268         }
1269
1270         return (rval);
1271 }
1272
1273 /*
1274 *  qla2x00_configure_hba
1275 *      Setup adapter context.
1276 *
1277 * Input:
1278 *      ha = adapter state pointer.
1279 *
1280 * Returns:
1281 *      0 = success
1282 *
1283 * Context:
1284 *      Kernel context.
1285 */
1286 static int
1287 qla2x00_configure_hba(scsi_qla_host_t *ha)
1288 {
1289         int       rval;
1290         uint16_t      loop_id;
1291         uint16_t      topo;
1292         uint16_t      sw_cap;
1293         uint8_t       al_pa;
1294         uint8_t       area;
1295         uint8_t       domain;
1296         char            connect_type[22];
1297
1298         /* Get host addresses. */
1299         rval = qla2x00_get_adapter_id(ha,
1300             &loop_id, &al_pa, &area, &domain, &topo, &sw_cap);
1301         if (rval != QLA_SUCCESS) {
1302                 if (LOOP_TRANSITION(ha) || atomic_read(&ha->loop_down_timer) ||
1303                     (rval == QLA_COMMAND_ERROR && loop_id == 0x7)) {
1304                         DEBUG2(printk("%s(%ld) Loop is in a transition state\n",
1305                             __func__, ha->host_no));
1306                 } else {
1307                         qla_printk(KERN_WARNING, ha,
1308                             "ERROR -- Unable to get host loop ID.\n");
1309                         set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
1310                 }
1311                 return (rval);
1312         }
1313
1314         if (topo == 4) {
1315                 qla_printk(KERN_INFO, ha,
1316                         "Cannot get topology - retrying.\n");
1317                 return (QLA_FUNCTION_FAILED);
1318         }
1319
1320         ha->loop_id = loop_id;
1321
1322         /* initialize */
1323         ha->min_external_loopid = SNS_FIRST_LOOP_ID;
1324         ha->operating_mode = LOOP;
1325         ha->switch_cap = 0;
1326
1327         switch (topo) {
1328         case 0:
1329                 DEBUG3(printk("scsi(%ld): HBA in NL topology.\n",
1330                     ha->host_no));
1331                 ha->current_topology = ISP_CFG_NL;
1332                 strcpy(connect_type, "(Loop)");
1333                 break;
1334
1335         case 1:
1336                 DEBUG3(printk("scsi(%ld): HBA in FL topology.\n",
1337                     ha->host_no));
1338                 ha->switch_cap = sw_cap;
1339                 ha->current_topology = ISP_CFG_FL;
1340                 strcpy(connect_type, "(FL_Port)");
1341                 break;
1342
1343         case 2:
1344                 DEBUG3(printk("scsi(%ld): HBA in N P2P topology.\n",
1345                     ha->host_no));
1346                 ha->operating_mode = P2P;
1347                 ha->current_topology = ISP_CFG_N;
1348                 strcpy(connect_type, "(N_Port-to-N_Port)");
1349                 break;
1350
1351         case 3:
1352                 DEBUG3(printk("scsi(%ld): HBA in F P2P topology.\n",
1353                     ha->host_no));
1354                 ha->switch_cap = sw_cap;
1355                 ha->operating_mode = P2P;
1356                 ha->current_topology = ISP_CFG_F;
1357                 strcpy(connect_type, "(F_Port)");
1358                 break;
1359
1360         default:
1361                 DEBUG3(printk("scsi(%ld): HBA in unknown topology %x. "
1362                     "Using NL.\n",
1363                     ha->host_no, topo));
1364                 ha->current_topology = ISP_CFG_NL;
1365                 strcpy(connect_type, "(Loop)");
1366                 break;
1367         }
1368
1369         /* Save Host port and loop ID. */
1370         /* byte order - Big Endian */
1371         ha->d_id.b.domain = domain;
1372         ha->d_id.b.area = area;
1373         ha->d_id.b.al_pa = al_pa;
1374
1375         if (!ha->flags.init_done)
1376                 qla_printk(KERN_INFO, ha,
1377                     "Topology - %s, Host Loop address 0x%x\n",
1378                     connect_type, ha->loop_id);
1379
1380         if (rval) {
1381                 DEBUG2_3(printk("scsi(%ld): FAILED.\n", ha->host_no));
1382         } else {
1383                 DEBUG3(printk("scsi(%ld): exiting normally.\n", ha->host_no));
1384         }
1385
1386         return(rval);
1387 }
1388
1389 static inline void
1390 qla2x00_set_model_info(scsi_qla_host_t *ha, uint8_t *model, size_t len, char *def)
1391 {
1392         char *st, *en;
1393         uint16_t index;
1394
1395         if (memcmp(model, BINZERO, len) != 0) {
1396                 strncpy(ha->model_number, model, len);
1397                 st = en = ha->model_number;
1398                 en += len - 1;
1399                 while (en > st) {
1400                         if (*en != 0x20 && *en != 0x00)
1401                                 break;
1402                         *en-- = '\0';
1403                 }
1404
1405                 index = (ha->pdev->subsystem_device & 0xff);
1406                 if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_QLOGIC &&
1407                     index < QLA_MODEL_NAMES)
1408                         ha->model_desc = qla2x00_model_name[index * 2 + 1];
1409         } else {
1410                 index = (ha->pdev->subsystem_device & 0xff);
1411                 if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_QLOGIC &&
1412                     index < QLA_MODEL_NAMES) {
1413                         strcpy(ha->model_number,
1414                             qla2x00_model_name[index * 2]);
1415                         ha->model_desc = qla2x00_model_name[index * 2 + 1];
1416                 } else {
1417                         strcpy(ha->model_number, def);
1418                 }
1419         }
1420 }
1421
1422 /* On sparc systems, obtain port and node WWN from firmware
1423  * properties.
1424  */
1425 static void qla2xxx_nvram_wwn_from_ofw(scsi_qla_host_t *ha, nvram_t *nv)
1426 {
1427 #ifdef CONFIG_SPARC
1428         struct pci_dev *pdev = ha->pdev;
1429         struct device_node *dp = pci_device_to_OF_node(pdev);
1430         const u8 *val;
1431         int len;
1432
1433         val = of_get_property(dp, "port-wwn", &len);
1434         if (val && len >= WWN_SIZE)
1435                 memcpy(nv->port_name, val, WWN_SIZE);
1436
1437         val = of_get_property(dp, "node-wwn", &len);
1438         if (val && len >= WWN_SIZE)
1439                 memcpy(nv->node_name, val, WWN_SIZE);
1440 #endif
1441 }
1442
1443 /*
1444 * NVRAM configuration for ISP 2xxx
1445 *
1446 * Input:
1447 *      ha                = adapter block pointer.
1448 *
1449 * Output:
1450 *      initialization control block in response_ring
1451 *      host adapters parameters in host adapter block
1452 *
1453 * Returns:
1454 *      0 = success.
1455 */
1456 int
1457 qla2x00_nvram_config(scsi_qla_host_t *ha)
1458 {
1459         int             rval;
1460         uint8_t         chksum = 0;
1461         uint16_t        cnt;
1462         uint8_t         *dptr1, *dptr2;
1463         init_cb_t       *icb = ha->init_cb;
1464         nvram_t         *nv = ha->nvram;
1465         uint8_t         *ptr = ha->nvram;
1466         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1467
1468         rval = QLA_SUCCESS;
1469
1470         /* Determine NVRAM starting address. */
1471         ha->nvram_size = sizeof(nvram_t);
1472         ha->nvram_base = 0;
1473         if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA2300(ha))
1474                 if ((RD_REG_WORD(&reg->ctrl_status) >> 14) == 1)
1475                         ha->nvram_base = 0x80;
1476
1477         /* Get NVRAM data and calculate checksum. */
1478         ha->isp_ops->read_nvram(ha, ptr, ha->nvram_base, ha->nvram_size);
1479         for (cnt = 0, chksum = 0; cnt < ha->nvram_size; cnt++)
1480                 chksum += *ptr++;
1481
1482         DEBUG5(printk("scsi(%ld): Contents of NVRAM\n", ha->host_no));
1483         DEBUG5(qla2x00_dump_buffer((uint8_t *)nv, ha->nvram_size));
1484
1485         /* Bad NVRAM data, set defaults parameters. */
1486         if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' ||
1487             nv->id[2] != 'P' || nv->id[3] != ' ' || nv->nvram_version < 1) {
1488                 /* Reset NVRAM data. */
1489                 qla_printk(KERN_WARNING, ha, "Inconsistent NVRAM detected: "
1490                     "checksum=0x%x id=%c version=0x%x.\n", chksum, nv->id[0],
1491                     nv->nvram_version);
1492                 qla_printk(KERN_WARNING, ha, "Falling back to functioning (yet "
1493                     "invalid -- WWPN) defaults.\n");
1494
1495                 /*
1496                  * Set default initialization control block.
1497                  */
1498                 memset(nv, 0, ha->nvram_size);
1499                 nv->parameter_block_version = ICB_VERSION;
1500
1501                 if (IS_QLA23XX(ha)) {
1502                         nv->firmware_options[0] = BIT_2 | BIT_1;
1503                         nv->firmware_options[1] = BIT_7 | BIT_5;
1504                         nv->add_firmware_options[0] = BIT_5;
1505                         nv->add_firmware_options[1] = BIT_5 | BIT_4;
1506                         nv->frame_payload_size = __constant_cpu_to_le16(2048);
1507                         nv->special_options[1] = BIT_7;
1508                 } else if (IS_QLA2200(ha)) {
1509                         nv->firmware_options[0] = BIT_2 | BIT_1;
1510                         nv->firmware_options[1] = BIT_7 | BIT_5;
1511                         nv->add_firmware_options[0] = BIT_5;
1512                         nv->add_firmware_options[1] = BIT_5 | BIT_4;
1513                         nv->frame_payload_size = __constant_cpu_to_le16(1024);
1514                 } else if (IS_QLA2100(ha)) {
1515                         nv->firmware_options[0] = BIT_3 | BIT_1;
1516                         nv->firmware_options[1] = BIT_5;
1517                         nv->frame_payload_size = __constant_cpu_to_le16(1024);
1518                 }
1519
1520                 nv->max_iocb_allocation = __constant_cpu_to_le16(256);
1521                 nv->execution_throttle = __constant_cpu_to_le16(16);
1522                 nv->retry_count = 8;
1523                 nv->retry_delay = 1;
1524
1525                 nv->port_name[0] = 33;
1526                 nv->port_name[3] = 224;
1527                 nv->port_name[4] = 139;
1528
1529                 qla2xxx_nvram_wwn_from_ofw(ha, nv);
1530
1531                 nv->login_timeout = 4;
1532
1533                 /*
1534                  * Set default host adapter parameters
1535                  */
1536                 nv->host_p[1] = BIT_2;
1537                 nv->reset_delay = 5;
1538                 nv->port_down_retry_count = 8;
1539                 nv->max_luns_per_target = __constant_cpu_to_le16(8);
1540                 nv->link_down_timeout = 60;
1541
1542                 rval = 1;
1543         }
1544
1545 #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
1546         /*
1547          * The SN2 does not provide BIOS emulation which means you can't change
1548          * potentially bogus BIOS settings. Force the use of default settings
1549          * for link rate and frame size.  Hope that the rest of the settings
1550          * are valid.
1551          */
1552         if (ia64_platform_is("sn2")) {
1553                 nv->frame_payload_size = __constant_cpu_to_le16(2048);
1554                 if (IS_QLA23XX(ha))
1555                         nv->special_options[1] = BIT_7;
1556         }
1557 #endif
1558
1559         /* Reset Initialization control block */
1560         memset(icb, 0, ha->init_cb_size);
1561
1562         /*
1563          * Setup driver NVRAM options.
1564          */
1565         nv->firmware_options[0] |= (BIT_6 | BIT_1);
1566         nv->firmware_options[0] &= ~(BIT_5 | BIT_4);
1567         nv->firmware_options[1] |= (BIT_5 | BIT_0);
1568         nv->firmware_options[1] &= ~BIT_4;
1569
1570         if (IS_QLA23XX(ha)) {
1571                 nv->firmware_options[0] |= BIT_2;
1572                 nv->firmware_options[0] &= ~BIT_3;
1573                 nv->add_firmware_options[1] |= BIT_5 | BIT_4;
1574
1575                 if (IS_QLA2300(ha)) {
1576                         if (ha->fb_rev == FPM_2310) {
1577                                 strcpy(ha->model_number, "QLA2310");
1578                         } else {
1579                                 strcpy(ha->model_number, "QLA2300");
1580                         }
1581                 } else {
1582                         qla2x00_set_model_info(ha, nv->model_number,
1583                             sizeof(nv->model_number), "QLA23xx");
1584                 }
1585         } else if (IS_QLA2200(ha)) {
1586                 nv->firmware_options[0] |= BIT_2;
1587                 /*
1588                  * 'Point-to-point preferred, else loop' is not a safe
1589                  * connection mode setting.
1590                  */
1591                 if ((nv->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) ==
1592                     (BIT_5 | BIT_4)) {
1593                         /* Force 'loop preferred, else point-to-point'. */
1594                         nv->add_firmware_options[0] &= ~(BIT_6 | BIT_5 | BIT_4);
1595                         nv->add_firmware_options[0] |= BIT_5;
1596                 }
1597                 strcpy(ha->model_number, "QLA22xx");
1598         } else /*if (IS_QLA2100(ha))*/ {
1599                 strcpy(ha->model_number, "QLA2100");
1600         }
1601
1602         /*
1603          * Copy over NVRAM RISC parameter block to initialization control block.
1604          */
1605         dptr1 = (uint8_t *)icb;
1606         dptr2 = (uint8_t *)&nv->parameter_block_version;
1607         cnt = (uint8_t *)&icb->request_q_outpointer - (uint8_t *)&icb->version;
1608         while (cnt--)
1609                 *dptr1++ = *dptr2++;
1610
1611         /* Copy 2nd half. */
1612         dptr1 = (uint8_t *)icb->add_firmware_options;
1613         cnt = (uint8_t *)icb->reserved_3 - (uint8_t *)icb->add_firmware_options;
1614         while (cnt--)
1615                 *dptr1++ = *dptr2++;
1616
1617         /* Use alternate WWN? */
1618         if (nv->host_p[1] & BIT_7) {
1619                 memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
1620                 memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
1621         }
1622
1623         /* Prepare nodename */
1624         if ((icb->firmware_options[1] & BIT_6) == 0) {
1625                 /*
1626                  * Firmware will apply the following mask if the nodename was
1627                  * not provided.
1628                  */
1629                 memcpy(icb->node_name, icb->port_name, WWN_SIZE);
1630                 icb->node_name[0] &= 0xF0;
1631         }
1632
1633         /*
1634          * Set host adapter parameters.
1635          */
1636         if (nv->host_p[0] & BIT_7)
1637                 ql2xextended_error_logging = 1;
1638         ha->flags.disable_risc_code_load = ((nv->host_p[0] & BIT_4) ? 1 : 0);
1639         /* Always load RISC code on non ISP2[12]00 chips. */
1640         if (!IS_QLA2100(ha) && !IS_QLA2200(ha))
1641                 ha->flags.disable_risc_code_load = 0;
1642         ha->flags.enable_lip_reset = ((nv->host_p[1] & BIT_1) ? 1 : 0);
1643         ha->flags.enable_lip_full_login = ((nv->host_p[1] & BIT_2) ? 1 : 0);
1644         ha->flags.enable_target_reset = ((nv->host_p[1] & BIT_3) ? 1 : 0);
1645         ha->flags.enable_led_scheme = (nv->special_options[1] & BIT_4) ? 1 : 0;
1646         ha->flags.disable_serdes = 0;
1647
1648         ha->operating_mode =
1649             (icb->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) >> 4;
1650
1651         memcpy(ha->fw_seriallink_options, nv->seriallink_options,
1652             sizeof(ha->fw_seriallink_options));
1653
1654         /* save HBA serial number */
1655         ha->serial0 = icb->port_name[5];
1656         ha->serial1 = icb->port_name[6];
1657         ha->serial2 = icb->port_name[7];
1658         ha->node_name = icb->node_name;
1659         ha->port_name = icb->port_name;
1660
1661         icb->execution_throttle = __constant_cpu_to_le16(0xFFFF);
1662
1663         ha->retry_count = nv->retry_count;
1664
1665         /* Set minimum login_timeout to 4 seconds. */
1666         if (nv->login_timeout < ql2xlogintimeout)
1667                 nv->login_timeout = ql2xlogintimeout;
1668         if (nv->login_timeout < 4)
1669                 nv->login_timeout = 4;
1670         ha->login_timeout = nv->login_timeout;
1671         icb->login_timeout = nv->login_timeout;
1672
1673         /* Set minimum RATOV to 200 tenths of a second. */
1674         ha->r_a_tov = 200;
1675
1676         ha->loop_reset_delay = nv->reset_delay;
1677
1678         /* Link Down Timeout = 0:
1679          *
1680          *      When Port Down timer expires we will start returning
1681          *      I/O's to OS with "DID_NO_CONNECT".
1682          *
1683          * Link Down Timeout != 0:
1684          *
1685          *       The driver waits for the link to come up after link down
1686          *       before returning I/Os to OS with "DID_NO_CONNECT".
1687          */
1688         if (nv->link_down_timeout == 0) {
1689                 ha->loop_down_abort_time =
1690                     (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
1691         } else {
1692                 ha->link_down_timeout =  nv->link_down_timeout;
1693                 ha->loop_down_abort_time =
1694                     (LOOP_DOWN_TIME - ha->link_down_timeout);
1695         }
1696
1697         /*
1698          * Need enough time to try and get the port back.
1699          */
1700         ha->port_down_retry_count = nv->port_down_retry_count;
1701         if (qlport_down_retry)
1702                 ha->port_down_retry_count = qlport_down_retry;
1703         /* Set login_retry_count */
1704         ha->login_retry_count  = nv->retry_count;
1705         if (ha->port_down_retry_count == nv->port_down_retry_count &&
1706             ha->port_down_retry_count > 3)
1707                 ha->login_retry_count = ha->port_down_retry_count;
1708         else if (ha->port_down_retry_count > (int)ha->login_retry_count)
1709                 ha->login_retry_count = ha->port_down_retry_count;
1710         if (ql2xloginretrycount)
1711                 ha->login_retry_count = ql2xloginretrycount;
1712
1713         icb->lun_enables = __constant_cpu_to_le16(0);
1714         icb->command_resource_count = 0;
1715         icb->immediate_notify_resource_count = 0;
1716         icb->timeout = __constant_cpu_to_le16(0);
1717
1718         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
1719                 /* Enable RIO */
1720                 icb->firmware_options[0] &= ~BIT_3;
1721                 icb->add_firmware_options[0] &=
1722                     ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
1723                 icb->add_firmware_options[0] |= BIT_2;
1724                 icb->response_accumulation_timer = 3;
1725                 icb->interrupt_delay_timer = 5;
1726
1727                 ha->flags.process_response_queue = 1;
1728         } else {
1729                 /* Enable ZIO. */
1730                 if (!ha->flags.init_done) {
1731                         ha->zio_mode = icb->add_firmware_options[0] &
1732                             (BIT_3 | BIT_2 | BIT_1 | BIT_0);
1733                         ha->zio_timer = icb->interrupt_delay_timer ?
1734                             icb->interrupt_delay_timer: 2;
1735                 }
1736                 icb->add_firmware_options[0] &=
1737                     ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
1738                 ha->flags.process_response_queue = 0;
1739                 if (ha->zio_mode != QLA_ZIO_DISABLED) {
1740                         ha->zio_mode = QLA_ZIO_MODE_6;
1741
1742                         DEBUG2(printk("scsi(%ld): ZIO mode %d enabled; timer "
1743                             "delay (%d us).\n", ha->host_no, ha->zio_mode,
1744                             ha->zio_timer * 100));
1745                         qla_printk(KERN_INFO, ha,
1746                             "ZIO mode %d enabled; timer delay (%d us).\n",
1747                             ha->zio_mode, ha->zio_timer * 100);
1748
1749                         icb->add_firmware_options[0] |= (uint8_t)ha->zio_mode;
1750                         icb->interrupt_delay_timer = (uint8_t)ha->zio_timer;
1751                         ha->flags.process_response_queue = 1;
1752                 }
1753         }
1754
1755         if (rval) {
1756                 DEBUG2_3(printk(KERN_WARNING
1757                     "scsi(%ld): NVRAM configuration failed!\n", ha->host_no));
1758         }
1759         return (rval);
1760 }
1761
1762 static void
1763 qla2x00_rport_del(void *data)
1764 {
1765         fc_port_t *fcport = data;
1766         struct fc_rport *rport;
1767         unsigned long flags;
1768
1769         spin_lock_irqsave(&fcport->rport_lock, flags);
1770         rport = fcport->drport;
1771         fcport->drport = NULL;
1772         spin_unlock_irqrestore(&fcport->rport_lock, flags);
1773         if (rport)
1774                 fc_remote_port_delete(rport);
1775 }
1776
1777 /**
1778  * qla2x00_alloc_fcport() - Allocate a generic fcport.
1779  * @ha: HA context
1780  * @flags: allocation flags
1781  *
1782  * Returns a pointer to the allocated fcport, or NULL, if none available.
1783  */
1784 static fc_port_t *
1785 qla2x00_alloc_fcport(scsi_qla_host_t *ha, gfp_t flags)
1786 {
1787         fc_port_t *fcport;
1788
1789         fcport = kmalloc(sizeof(fc_port_t), flags);
1790         if (fcport == NULL)
1791                 return (fcport);
1792
1793         /* Setup fcport template structure. */
1794         memset(fcport, 0, sizeof (fc_port_t));
1795         fcport->ha = ha;
1796         fcport->vp_idx = ha->vp_idx;
1797         fcport->port_type = FCT_UNKNOWN;
1798         fcport->loop_id = FC_NO_LOOP_ID;
1799         atomic_set(&fcport->state, FCS_UNCONFIGURED);
1800         fcport->flags = FCF_RLC_SUPPORT;
1801         fcport->supported_classes = FC_COS_UNSPECIFIED;
1802         spin_lock_init(&fcport->rport_lock);
1803
1804         return (fcport);
1805 }
1806
1807 /*
1808  * qla2x00_configure_loop
1809  *      Updates Fibre Channel Device Database with what is actually on loop.
1810  *
1811  * Input:
1812  *      ha                = adapter block pointer.
1813  *
1814  * Returns:
1815  *      0 = success.
1816  *      1 = error.
1817  *      2 = database was full and device was not configured.
1818  */
1819 static int
1820 qla2x00_configure_loop(scsi_qla_host_t *ha)
1821 {
1822         int  rval;
1823         unsigned long flags, save_flags;
1824
1825         rval = QLA_SUCCESS;
1826
1827         /* Get Initiator ID */
1828         if (test_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags)) {
1829                 rval = qla2x00_configure_hba(ha);
1830                 if (rval != QLA_SUCCESS) {
1831                         DEBUG(printk("scsi(%ld): Unable to configure HBA.\n",
1832                             ha->host_no));
1833                         return (rval);
1834                 }
1835         }
1836
1837         save_flags = flags = ha->dpc_flags;
1838         DEBUG(printk("scsi(%ld): Configure loop -- dpc flags =0x%lx\n",
1839             ha->host_no, flags));
1840
1841         /*
1842          * If we have both an RSCN and PORT UPDATE pending then handle them
1843          * both at the same time.
1844          */
1845         clear_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1846         clear_bit(RSCN_UPDATE, &ha->dpc_flags);
1847
1848         /* Determine what we need to do */
1849         if (ha->current_topology == ISP_CFG_FL &&
1850             (test_bit(LOCAL_LOOP_UPDATE, &flags))) {
1851
1852                 ha->flags.rscn_queue_overflow = 1;
1853                 set_bit(RSCN_UPDATE, &flags);
1854
1855         } else if (ha->current_topology == ISP_CFG_F &&
1856             (test_bit(LOCAL_LOOP_UPDATE, &flags))) {
1857
1858                 ha->flags.rscn_queue_overflow = 1;
1859                 set_bit(RSCN_UPDATE, &flags);
1860                 clear_bit(LOCAL_LOOP_UPDATE, &flags);
1861
1862         } else if (ha->current_topology == ISP_CFG_N) {
1863                 clear_bit(RSCN_UPDATE, &flags);
1864
1865         } else if (!ha->flags.online ||
1866             (test_bit(ABORT_ISP_ACTIVE, &flags))) {
1867
1868                 ha->flags.rscn_queue_overflow = 1;
1869                 set_bit(RSCN_UPDATE, &flags);
1870                 set_bit(LOCAL_LOOP_UPDATE, &flags);
1871         }
1872
1873         if (test_bit(LOCAL_LOOP_UPDATE, &flags)) {
1874                 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
1875                         rval = QLA_FUNCTION_FAILED;
1876                 } else {
1877                         rval = qla2x00_configure_local_loop(ha);
1878                 }
1879         }
1880
1881         if (rval == QLA_SUCCESS && test_bit(RSCN_UPDATE, &flags)) {
1882                 if (LOOP_TRANSITION(ha)) {
1883                         rval = QLA_FUNCTION_FAILED;
1884                 } else {
1885                         rval = qla2x00_configure_fabric(ha);
1886                 }
1887         }
1888
1889         if (rval == QLA_SUCCESS) {
1890                 if (atomic_read(&ha->loop_down_timer) ||
1891                     test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
1892                         rval = QLA_FUNCTION_FAILED;
1893                 } else {
1894                         atomic_set(&ha->loop_state, LOOP_READY);
1895
1896                         DEBUG(printk("scsi(%ld): LOOP READY\n", ha->host_no));
1897                 }
1898         }
1899
1900         if (rval) {
1901                 DEBUG2_3(printk("%s(%ld): *** FAILED ***\n",
1902                     __func__, ha->host_no));
1903         } else {
1904                 DEBUG3(printk("%s: exiting normally\n", __func__));
1905         }
1906
1907         /* Restore state if a resync event occured during processing */
1908         if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
1909                 if (test_bit(LOCAL_LOOP_UPDATE, &save_flags))
1910                         set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1911                 if (test_bit(RSCN_UPDATE, &save_flags))
1912                         set_bit(RSCN_UPDATE, &ha->dpc_flags);
1913         }
1914
1915         return (rval);
1916 }
1917
1918
1919
1920 /*
1921  * qla2x00_configure_local_loop
1922  *      Updates Fibre Channel Device Database with local loop devices.
1923  *
1924  * Input:
1925  *      ha = adapter block pointer.
1926  *
1927  * Returns:
1928  *      0 = success.
1929  */
1930 static int
1931 qla2x00_configure_local_loop(scsi_qla_host_t *ha)
1932 {
1933         int             rval, rval2;
1934         int             found_devs;
1935         int             found;
1936         fc_port_t       *fcport, *new_fcport;
1937
1938         uint16_t        index;
1939         uint16_t        entries;
1940         char            *id_iter;
1941         uint16_t        loop_id;
1942         uint8_t         domain, area, al_pa;
1943         scsi_qla_host_t *pha = to_qla_parent(ha);
1944
1945         found_devs = 0;
1946         new_fcport = NULL;
1947         entries = MAX_FIBRE_DEVICES;
1948
1949         DEBUG3(printk("scsi(%ld): Getting FCAL position map\n", ha->host_no));
1950         DEBUG3(qla2x00_get_fcal_position_map(ha, NULL));
1951
1952         /* Get list of logged in devices. */
1953         memset(ha->gid_list, 0, GID_LIST_SIZE);
1954         rval = qla2x00_get_id_list(ha, ha->gid_list, ha->gid_list_dma,
1955             &entries);
1956         if (rval != QLA_SUCCESS)
1957                 goto cleanup_allocation;
1958
1959         DEBUG3(printk("scsi(%ld): Entries in ID list (%d)\n",
1960             ha->host_no, entries));
1961         DEBUG3(qla2x00_dump_buffer((uint8_t *)ha->gid_list,
1962             entries * sizeof(struct gid_list_info)));
1963
1964         /* Allocate temporary fcport for any new fcports discovered. */
1965         new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
1966         if (new_fcport == NULL) {
1967                 rval = QLA_MEMORY_ALLOC_FAILED;
1968                 goto cleanup_allocation;
1969         }
1970         new_fcport->flags &= ~FCF_FABRIC_DEVICE;
1971
1972         /*
1973          * Mark local devices that were present with FCF_DEVICE_LOST for now.
1974          */
1975         list_for_each_entry(fcport, &pha->fcports, list) {
1976                 if (fcport->vp_idx != ha->vp_idx)
1977                         continue;
1978
1979                 if (atomic_read(&fcport->state) == FCS_ONLINE &&
1980                     fcport->port_type != FCT_BROADCAST &&
1981                     (fcport->flags & FCF_FABRIC_DEVICE) == 0) {
1982
1983                         DEBUG(printk("scsi(%ld): Marking port lost, "
1984                             "loop_id=0x%04x\n",
1985                             ha->host_no, fcport->loop_id));
1986
1987                         atomic_set(&fcport->state, FCS_DEVICE_LOST);
1988                         fcport->flags &= ~FCF_FARP_DONE;
1989                 }
1990         }
1991
1992         /* Add devices to port list. */
1993         id_iter = (char *)ha->gid_list;
1994         for (index = 0; index < entries; index++) {
1995                 domain = ((struct gid_list_info *)id_iter)->domain;
1996                 area = ((struct gid_list_info *)id_iter)->area;
1997                 al_pa = ((struct gid_list_info *)id_iter)->al_pa;
1998                 if (IS_QLA2100(ha) || IS_QLA2200(ha))
1999                         loop_id = (uint16_t)
2000                             ((struct gid_list_info *)id_iter)->loop_id_2100;
2001                 else
2002                         loop_id = le16_to_cpu(
2003                             ((struct gid_list_info *)id_iter)->loop_id);
2004                 id_iter += ha->gid_list_info_size;
2005
2006                 /* Bypass reserved domain fields. */
2007                 if ((domain & 0xf0) == 0xf0)
2008                         continue;
2009
2010                 /* Bypass if not same domain and area of adapter. */
2011                 if (area && domain &&
2012                     (area != ha->d_id.b.area || domain != ha->d_id.b.domain))
2013                         continue;
2014
2015                 /* Bypass invalid local loop ID. */
2016                 if (loop_id > LAST_LOCAL_LOOP_ID)
2017                         continue;
2018
2019                 /* Fill in member data. */
2020                 new_fcport->d_id.b.domain = domain;
2021                 new_fcport->d_id.b.area = area;
2022                 new_fcport->d_id.b.al_pa = al_pa;
2023                 new_fcport->loop_id = loop_id;
2024                 new_fcport->vp_idx = ha->vp_idx;
2025                 rval2 = qla2x00_get_port_database(ha, new_fcport, 0);
2026                 if (rval2 != QLA_SUCCESS) {
2027                         DEBUG2(printk("scsi(%ld): Failed to retrieve fcport "
2028                             "information -- get_port_database=%x, "
2029                             "loop_id=0x%04x\n",
2030                             ha->host_no, rval2, new_fcport->loop_id));
2031                         DEBUG2(printk("scsi(%ld): Scheduling resync...\n",
2032                             ha->host_no));
2033                         set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2034                         continue;
2035                 }
2036
2037                 /* Check for matching device in port list. */
2038                 found = 0;
2039                 fcport = NULL;
2040                 list_for_each_entry(fcport, &pha->fcports, list) {
2041                         if (fcport->vp_idx != ha->vp_idx)
2042                                 continue;
2043
2044                         if (memcmp(new_fcport->port_name, fcport->port_name,
2045                             WWN_SIZE))
2046                                 continue;
2047
2048                         fcport->flags &= ~(FCF_FABRIC_DEVICE |
2049                             FCF_PERSISTENT_BOUND);
2050                         fcport->loop_id = new_fcport->loop_id;
2051                         fcport->port_type = new_fcport->port_type;
2052                         fcport->d_id.b24 = new_fcport->d_id.b24;
2053                         memcpy(fcport->node_name, new_fcport->node_name,
2054                             WWN_SIZE);
2055
2056                         found++;
2057                         break;
2058                 }
2059
2060                 if (!found) {
2061                         /* New device, add to fcports list. */
2062                         new_fcport->flags &= ~FCF_PERSISTENT_BOUND;
2063                         if (ha->parent) {
2064                                 new_fcport->ha = ha;
2065                                 new_fcport->vp_idx = ha->vp_idx;
2066                                 list_add_tail(&new_fcport->vp_fcport,
2067                                     &ha->vp_fcports);
2068                         }
2069                         list_add_tail(&new_fcport->list, &pha->fcports);
2070
2071                         /* Allocate a new replacement fcport. */
2072                         fcport = new_fcport;
2073                         new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
2074                         if (new_fcport == NULL) {
2075                                 rval = QLA_MEMORY_ALLOC_FAILED;
2076                                 goto cleanup_allocation;
2077                         }
2078                         new_fcport->flags &= ~FCF_FABRIC_DEVICE;
2079                 }
2080
2081                 /* Base iIDMA settings on HBA port speed. */
2082                 fcport->fp_speed = ha->link_data_rate;
2083
2084                 qla2x00_update_fcport(ha, fcport);
2085
2086                 found_devs++;
2087         }
2088
2089 cleanup_allocation:
2090         kfree(new_fcport);
2091
2092         if (rval != QLA_SUCCESS) {
2093                 DEBUG2(printk("scsi(%ld): Configure local loop error exit: "
2094                     "rval=%x\n", ha->host_no, rval));
2095         }
2096
2097         if (found_devs) {
2098                 ha->device_flags |= DFLG_LOCAL_DEVICES;
2099                 ha->device_flags &= ~DFLG_RETRY_LOCAL_DEVICES;
2100         }
2101
2102         return (rval);
2103 }
2104
2105 static void
2106 qla2x00_probe_for_all_luns(scsi_qla_host_t *ha)
2107 {
2108         fc_port_t       *fcport;
2109
2110         qla2x00_mark_all_devices_lost(ha, 0);
2111         list_for_each_entry(fcport, &ha->fcports, list) {
2112                 if (fcport->port_type != FCT_TARGET)
2113                         continue;
2114
2115                 qla2x00_update_fcport(ha, fcport);
2116         }
2117 }
2118
2119 static void
2120 qla2x00_iidma_fcport(scsi_qla_host_t *ha, fc_port_t *fcport)
2121 {
2122 #define LS_UNKNOWN      2
2123         static char *link_speeds[5] = { "1", "2", "?", "4", "8" };
2124         int rval;
2125         uint16_t mb[6];
2126
2127         if (!IS_IIDMA_CAPABLE(ha))
2128                 return;
2129
2130         if (fcport->fp_speed == PORT_SPEED_UNKNOWN) {
2131                 DEBUG2(printk("scsi(%ld): %02x%02x%02x%02x%02x%02x%02x%02x -- "
2132                     "unsupported FM port operating speed.\n",
2133                     ha->host_no, fcport->port_name[0], fcport->port_name[1],
2134                     fcport->port_name[2], fcport->port_name[3],
2135                     fcport->port_name[4], fcport->port_name[5],
2136                     fcport->port_name[6], fcport->port_name[7]));
2137                 return;
2138         }
2139
2140         rval = qla2x00_set_idma_speed(ha, fcport->loop_id, fcport->fp_speed,
2141             mb);
2142         if (rval != QLA_SUCCESS) {
2143                 DEBUG2(printk("scsi(%ld): Unable to adjust iIDMA "
2144                     "%02x%02x%02x%02x%02x%02x%02x%02x -- %04x %x %04x %04x.\n",
2145                     ha->host_no, fcport->port_name[0], fcport->port_name[1],
2146                     fcport->port_name[2], fcport->port_name[3],
2147                     fcport->port_name[4], fcport->port_name[5],
2148                     fcport->port_name[6], fcport->port_name[7], rval,
2149                     fcport->fp_speed, mb[0], mb[1]));
2150         } else {
2151                 DEBUG2(qla_printk(KERN_INFO, ha,
2152                     "iIDMA adjusted to %s GB/s on "
2153                     "%02x%02x%02x%02x%02x%02x%02x%02x.\n",
2154                     link_speeds[fcport->fp_speed], fcport->port_name[0],
2155                     fcport->port_name[1], fcport->port_name[2],
2156                     fcport->port_name[3], fcport->port_name[4],
2157                     fcport->port_name[5], fcport->port_name[6],
2158                     fcport->port_name[7]));
2159         }
2160 }
2161
2162 static void
2163 qla2x00_reg_remote_port(scsi_qla_host_t *ha, fc_port_t *fcport)
2164 {
2165         struct fc_rport_identifiers rport_ids;
2166         struct fc_rport *rport;
2167         unsigned long flags;
2168
2169         if (fcport->drport)
2170                 qla2x00_rport_del(fcport);
2171         if (fcport->rport)
2172                 return;
2173
2174         rport_ids.node_name = wwn_to_u64(fcport->node_name);
2175         rport_ids.port_name = wwn_to_u64(fcport->port_name);
2176         rport_ids.port_id = fcport->d_id.b.domain << 16 |
2177             fcport->d_id.b.area << 8 | fcport->d_id.b.al_pa;
2178         rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
2179         rport = fc_remote_port_add(ha->host, 0, &rport_ids);
2180         if (!rport) {
2181                 qla_printk(KERN_WARNING, ha,
2182                     "Unable to allocate fc remote port!\n");
2183                 return;
2184         }
2185         spin_lock_irqsave(&fcport->rport_lock, flags);
2186         fcport->rport = rport;
2187         *((fc_port_t **)rport->dd_data) = fcport;
2188         spin_unlock_irqrestore(&fcport->rport_lock, flags);
2189
2190         rport->supported_classes = fcport->supported_classes;
2191
2192         rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
2193         if (fcport->port_type == FCT_INITIATOR)
2194                 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
2195         if (fcport->port_type == FCT_TARGET)
2196                 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
2197         fc_remote_port_rolechg(rport, rport_ids.roles);
2198
2199         if (rport->scsi_target_id != -1 &&
2200             rport->scsi_target_id < ha->host->max_id)
2201                 fcport->os_target_id = rport->scsi_target_id;
2202 }
2203
2204 /*
2205  * qla2x00_update_fcport
2206  *      Updates device on list.
2207  *
2208  * Input:
2209  *      ha = adapter block pointer.
2210  *      fcport = port structure pointer.
2211  *
2212  * Return:
2213  *      0  - Success
2214  *  BIT_0 - error
2215  *
2216  * Context:
2217  *      Kernel context.
2218  */
2219 void
2220 qla2x00_update_fcport(scsi_qla_host_t *ha, fc_port_t *fcport)
2221 {
2222         scsi_qla_host_t *pha = to_qla_parent(ha);
2223
2224         fcport->ha = ha;
2225         fcport->login_retry = 0;
2226         fcport->port_login_retry_count = pha->port_down_retry_count *
2227             PORT_RETRY_TIME;
2228         atomic_set(&fcport->port_down_timer, pha->port_down_retry_count *
2229             PORT_RETRY_TIME);
2230         fcport->flags &= ~FCF_LOGIN_NEEDED;
2231
2232         qla2x00_iidma_fcport(ha, fcport);
2233
2234         atomic_set(&fcport->state, FCS_ONLINE);
2235
2236         qla2x00_reg_remote_port(ha, fcport);
2237 }
2238
2239 /*
2240  * qla2x00_configure_fabric
2241  *      Setup SNS devices with loop ID's.
2242  *
2243  * Input:
2244  *      ha = adapter block pointer.
2245  *
2246  * Returns:
2247  *      0 = success.
2248  *      BIT_0 = error
2249  */
2250 static int
2251 qla2x00_configure_fabric(scsi_qla_host_t *ha)
2252 {
2253         int     rval, rval2;
2254         fc_port_t       *fcport, *fcptemp;
2255         uint16_t        next_loopid;
2256         uint16_t        mb[MAILBOX_REGISTER_COUNT];
2257         uint16_t        loop_id;
2258         LIST_HEAD(new_fcports);
2259         scsi_qla_host_t *pha = to_qla_parent(ha);
2260
2261         /* If FL port exists, then SNS is present */
2262         if (IS_FWI2_CAPABLE(ha))
2263                 loop_id = NPH_F_PORT;
2264         else
2265                 loop_id = SNS_FL_PORT;
2266         rval = qla2x00_get_port_name(ha, loop_id, ha->fabric_node_name, 1);
2267         if (rval != QLA_SUCCESS) {
2268                 DEBUG2(printk("scsi(%ld): MBC_GET_PORT_NAME Failed, No FL "
2269                     "Port\n", ha->host_no));
2270
2271                 ha->device_flags &= ~SWITCH_FOUND;
2272                 return (QLA_SUCCESS);
2273         }
2274         ha->device_flags |= SWITCH_FOUND;
2275
2276         /* Mark devices that need re-synchronization. */
2277         rval2 = qla2x00_device_resync(ha);
2278         if (rval2 == QLA_RSCNS_HANDLED) {
2279                 /* No point doing the scan, just continue. */
2280                 return (QLA_SUCCESS);
2281         }
2282         do {
2283                 /* FDMI support. */
2284                 if (ql2xfdmienable &&
2285                     test_and_clear_bit(REGISTER_FDMI_NEEDED, &ha->dpc_flags))
2286                         qla2x00_fdmi_register(ha);
2287
2288                 /* Ensure we are logged into the SNS. */
2289                 if (IS_FWI2_CAPABLE(ha))
2290                         loop_id = NPH_SNS;
2291                 else
2292                         loop_id = SIMPLE_NAME_SERVER;
2293                 ha->isp_ops->fabric_login(ha, loop_id, 0xff, 0xff,
2294                     0xfc, mb, BIT_1 | BIT_0);
2295                 if (mb[0] != MBS_COMMAND_COMPLETE) {
2296                         DEBUG2(qla_printk(KERN_INFO, ha,
2297                             "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x "
2298                             "mb[2]=%x mb[6]=%x mb[7]=%x\n", loop_id,
2299                             mb[0], mb[1], mb[2], mb[6], mb[7]));
2300                         return (QLA_SUCCESS);
2301                 }
2302
2303                 if (test_and_clear_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags)) {
2304                         if (qla2x00_rft_id(ha)) {
2305                                 /* EMPTY */
2306                                 DEBUG2(printk("scsi(%ld): Register FC-4 "
2307                                     "TYPE failed.\n", ha->host_no));
2308                         }
2309                         if (qla2x00_rff_id(ha)) {
2310                                 /* EMPTY */
2311                                 DEBUG2(printk("scsi(%ld): Register FC-4 "
2312                                     "Features failed.\n", ha->host_no));
2313                         }
2314                         if (qla2x00_rnn_id(ha)) {
2315                                 /* EMPTY */
2316                                 DEBUG2(printk("scsi(%ld): Register Node Name "
2317                                     "failed.\n", ha->host_no));
2318                         } else if (qla2x00_rsnn_nn(ha)) {
2319                                 /* EMPTY */
2320                                 DEBUG2(printk("scsi(%ld): Register Symbolic "
2321                                     "Node Name failed.\n", ha->host_no));
2322                         }
2323                 }
2324
2325                 rval = qla2x00_find_all_fabric_devs(ha, &new_fcports);
2326                 if (rval != QLA_SUCCESS)
2327                         break;
2328
2329                 /*
2330                  * Logout all previous fabric devices marked lost, except
2331                  * tape devices.
2332                  */
2333                 list_for_each_entry(fcport, &pha->fcports, list) {
2334                         if (fcport->vp_idx !=ha->vp_idx)
2335                                 continue;
2336
2337                         if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2338                                 break;
2339
2340                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0)
2341                                 continue;
2342
2343                         if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2344                                 qla2x00_mark_device_lost(ha, fcport,
2345                                     ql2xplogiabsentdevice, 0);
2346                                 if (fcport->loop_id != FC_NO_LOOP_ID &&
2347                                     (fcport->flags & FCF_TAPE_PRESENT) == 0 &&
2348                                     fcport->port_type != FCT_INITIATOR &&
2349                                     fcport->port_type != FCT_BROADCAST) {
2350                                         ha->isp_ops->fabric_logout(ha,
2351                                             fcport->loop_id,
2352                                             fcport->d_id.b.domain,
2353                                             fcport->d_id.b.area,
2354                                             fcport->d_id.b.al_pa);
2355                                         fcport->loop_id = FC_NO_LOOP_ID;
2356                                 }
2357                         }
2358                 }
2359
2360                 /* Starting free loop ID. */
2361                 next_loopid = pha->min_external_loopid;
2362
2363                 /*
2364                  * Scan through our port list and login entries that need to be
2365                  * logged in.
2366                  */
2367                 list_for_each_entry(fcport, &pha->fcports, list) {
2368                         if (fcport->vp_idx != ha->vp_idx)
2369                                 continue;
2370
2371                         if (atomic_read(&ha->loop_down_timer) ||
2372                             test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2373                                 break;
2374
2375                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 ||
2376                             (fcport->flags & FCF_LOGIN_NEEDED) == 0)
2377                                 continue;
2378
2379                         if (fcport->loop_id == FC_NO_LOOP_ID) {
2380                                 fcport->loop_id = next_loopid;
2381                                 rval = qla2x00_find_new_loop_id(ha, fcport);
2382                                 if (rval != QLA_SUCCESS) {
2383                                         /* Ran out of IDs to use */
2384                                         break;
2385                                 }
2386                         }
2387                         /* Login and update database */
2388                         qla2x00_fabric_dev_login(ha, fcport, &next_loopid);
2389                 }
2390
2391                 /* Exit if out of loop IDs. */
2392                 if (rval != QLA_SUCCESS) {
2393                         break;
2394                 }
2395
2396                 /*
2397                  * Login and add the new devices to our port list.
2398                  */
2399                 list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) {
2400                         if (atomic_read(&ha->loop_down_timer) ||
2401                             test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2402                                 break;
2403
2404                         /* Find a new loop ID to use. */
2405                         fcport->loop_id = next_loopid;
2406                         rval = qla2x00_find_new_loop_id(ha, fcport);
2407                         if (rval != QLA_SUCCESS) {
2408                                 /* Ran out of IDs to use */
2409                                 break;
2410                         }
2411
2412                         /* Login and update database */
2413                         qla2x00_fabric_dev_login(ha, fcport, &next_loopid);
2414
2415                         if (ha->parent) {
2416                                 fcport->ha = ha;
2417                                 fcport->vp_idx = ha->vp_idx;
2418                                 list_add_tail(&fcport->vp_fcport,
2419                                     &ha->vp_fcports);
2420                                 list_move_tail(&fcport->list,
2421                                     &ha->parent->fcports);
2422                         } else
2423                                 list_move_tail(&fcport->list, &ha->fcports);
2424                 }
2425         } while (0);
2426
2427         /* Free all new device structures not processed. */
2428         list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) {
2429                 list_del(&fcport->list);
2430                 kfree(fcport);
2431         }
2432
2433         if (rval) {
2434                 DEBUG2(printk("scsi(%ld): Configure fabric error exit: "
2435                     "rval=%d\n", ha->host_no, rval));
2436         }
2437
2438         return (rval);
2439 }
2440
2441
2442 /*
2443  * qla2x00_find_all_fabric_devs
2444  *
2445  * Input:
2446  *      ha = adapter block pointer.
2447  *      dev = database device entry pointer.
2448  *
2449  * Returns:
2450  *      0 = success.
2451  *
2452  * Context:
2453  *      Kernel context.
2454  */
2455 static int
2456 qla2x00_find_all_fabric_devs(scsi_qla_host_t *ha, struct list_head *new_fcports)
2457 {
2458         int             rval;
2459         uint16_t        loop_id;
2460         fc_port_t       *fcport, *new_fcport, *fcptemp;
2461         int             found;
2462
2463         sw_info_t       *swl;
2464         int             swl_idx;
2465         int             first_dev, last_dev;
2466         port_id_t       wrap, nxt_d_id;
2467         int             vp_index;
2468         int             empty_vp_index;
2469         int             found_vp;
2470         scsi_qla_host_t *vha;
2471         scsi_qla_host_t *pha = to_qla_parent(ha);
2472
2473         rval = QLA_SUCCESS;
2474
2475         /* Try GID_PT to get device list, else GAN. */
2476         swl = kmalloc(sizeof(sw_info_t) * MAX_FIBRE_DEVICES, GFP_ATOMIC);
2477         if (swl == NULL) {
2478                 /*EMPTY*/
2479                 DEBUG2(printk("scsi(%ld): GID_PT allocations failed, fallback "
2480                     "on GA_NXT\n", ha->host_no));
2481         } else {
2482                 memset(swl, 0, sizeof(sw_info_t) * MAX_FIBRE_DEVICES);
2483                 if (qla2x00_gid_pt(ha, swl) != QLA_SUCCESS) {
2484                         kfree(swl);
2485                         swl = NULL;
2486                 } else if (qla2x00_gpn_id(ha, swl) != QLA_SUCCESS) {
2487                         kfree(swl);
2488                         swl = NULL;
2489                 } else if (qla2x00_gnn_id(ha, swl) != QLA_SUCCESS) {
2490                         kfree(swl);
2491                         swl = NULL;
2492                 } else if (qla2x00_gfpn_id(ha, swl) == QLA_SUCCESS) {
2493                         qla2x00_gpsc(ha, swl);
2494                 }
2495         }
2496         swl_idx = 0;
2497
2498         /* Allocate temporary fcport for any new fcports discovered. */
2499         new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
2500         if (new_fcport == NULL) {
2501                 kfree(swl);
2502                 return (QLA_MEMORY_ALLOC_FAILED);
2503         }
2504         new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
2505         new_fcport->vp_idx = ha->vp_idx;
2506         /* Set start port ID scan at adapter ID. */
2507         first_dev = 1;
2508         last_dev = 0;
2509
2510         /* Starting free loop ID. */
2511         loop_id = pha->min_external_loopid;
2512         for (; loop_id <= ha->last_loop_id; loop_id++) {
2513                 if (qla2x00_is_reserved_id(ha, loop_id))
2514                         continue;
2515
2516                 if (atomic_read(&ha->loop_down_timer) || LOOP_TRANSITION(ha))
2517                         break;
2518
2519                 if (swl != NULL) {
2520                         if (last_dev) {
2521                                 wrap.b24 = new_fcport->d_id.b24;
2522                         } else {
2523                                 new_fcport->d_id.b24 = swl[swl_idx].d_id.b24;
2524                                 memcpy(new_fcport->node_name,
2525                                     swl[swl_idx].node_name, WWN_SIZE);
2526                                 memcpy(new_fcport->port_name,
2527                                     swl[swl_idx].port_name, WWN_SIZE);
2528                                 memcpy(new_fcport->fabric_port_name,
2529                                     swl[swl_idx].fabric_port_name, WWN_SIZE);
2530                                 new_fcport->fp_speed = swl[swl_idx].fp_speed;
2531
2532                                 if (swl[swl_idx].d_id.b.rsvd_1 != 0) {
2533                                         last_dev = 1;
2534                                 }
2535                                 swl_idx++;
2536                         }
2537                 } else {
2538                         /* Send GA_NXT to the switch */
2539                         rval = qla2x00_ga_nxt(ha, new_fcport);
2540                         if (rval != QLA_SUCCESS) {
2541                                 qla_printk(KERN_WARNING, ha,
2542                                     "SNS scan failed -- assuming zero-entry "
2543                                     "result...\n");
2544                                 list_for_each_entry_safe(fcport, fcptemp,
2545                                     new_fcports, list) {
2546                                         list_del(&fcport->list);
2547                                         kfree(fcport);
2548                                 }
2549                                 rval = QLA_SUCCESS;
2550                                 break;
2551                         }
2552                 }
2553
2554                 /* If wrap on switch device list, exit. */
2555                 if (first_dev) {
2556                         wrap.b24 = new_fcport->d_id.b24;
2557                         first_dev = 0;
2558                 } else if (new_fcport->d_id.b24 == wrap.b24) {
2559                         DEBUG2(printk("scsi(%ld): device wrap (%02x%02x%02x)\n",
2560                             ha->host_no, new_fcport->d_id.b.domain,
2561                             new_fcport->d_id.b.area, new_fcport->d_id.b.al_pa));
2562                         break;
2563                 }
2564
2565                 /* Bypass if same physical adapter. */
2566                 if (new_fcport->d_id.b24 == pha->d_id.b24)
2567                         continue;
2568
2569                 /* Bypass virtual ports of the same host. */
2570                 if (pha->num_vhosts) {
2571                         vp_index = find_next_bit(
2572                             (unsigned long *)pha->vp_idx_map,
2573                             MAX_MULTI_ID_FABRIC + 1, 1);
2574
2575                         for (;vp_index <= MAX_MULTI_ID_FABRIC;
2576                             vp_index = find_next_bit(
2577                             (unsigned long *)pha->vp_idx_map,
2578                             MAX_MULTI_ID_FABRIC + 1, vp_index + 1)) {
2579                                 empty_vp_index = 1;
2580                                 found_vp = 0;
2581                                 list_for_each_entry(vha, &pha->vp_list,
2582                                     vp_list) {
2583                                         if (vp_index == vha->vp_idx) {
2584                                                 empty_vp_index = 0;
2585                                                 found_vp = 1;
2586                                                 break;
2587                                         }
2588                                 }
2589
2590                                 if (empty_vp_index)
2591                                         continue;
2592
2593                                 if (found_vp &&
2594                                     new_fcport->d_id.b24 == vha->d_id.b24)
2595                                         break;
2596                         }
2597                         if (vp_index <= MAX_MULTI_ID_FABRIC)
2598                                 continue;
2599                 }
2600
2601                 /* Bypass if same domain and area of adapter. */
2602                 if (((new_fcport->d_id.b24 & 0xffff00) ==
2603                     (ha->d_id.b24 & 0xffff00)) && ha->current_topology ==
2604                         ISP_CFG_FL)
2605                             continue;
2606
2607                 /* Bypass reserved domain fields. */
2608                 if ((new_fcport->d_id.b.domain & 0xf0) == 0xf0)
2609                         continue;
2610
2611                 /* Locate matching device in database. */
2612                 found = 0;
2613                 list_for_each_entry(fcport, &pha->fcports, list) {
2614                         if (new_fcport->vp_idx != fcport->vp_idx)
2615                                 continue;
2616                         if (memcmp(new_fcport->port_name, fcport->port_name,
2617                             WWN_SIZE))
2618                                 continue;
2619
2620                         found++;
2621
2622                         /* Update port state. */
2623                         memcpy(fcport->fabric_port_name,
2624                             new_fcport->fabric_port_name, WWN_SIZE);
2625                         fcport->fp_speed = new_fcport->fp_speed;
2626
2627                         /*
2628                          * If address the same and state FCS_ONLINE, nothing
2629                          * changed.
2630                          */
2631                         if (fcport->d_id.b24 == new_fcport->d_id.b24 &&
2632                             atomic_read(&fcport->state) == FCS_ONLINE) {
2633                                 break;
2634                         }
2635
2636                         /*
2637                          * If device was not a fabric device before.
2638                          */
2639                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) {
2640                                 fcport->d_id.b24 = new_fcport->d_id.b24;
2641                                 fcport->loop_id = FC_NO_LOOP_ID;
2642                                 fcport->flags |= (FCF_FABRIC_DEVICE |
2643                                     FCF_LOGIN_NEEDED);
2644                                 fcport->flags &= ~FCF_PERSISTENT_BOUND;
2645                                 break;
2646                         }
2647
2648                         /*
2649                          * Port ID changed or device was marked to be updated;
2650                          * Log it out if still logged in and mark it for
2651                          * relogin later.
2652                          */
2653                         fcport->d_id.b24 = new_fcport->d_id.b24;
2654                         fcport->flags |= FCF_LOGIN_NEEDED;
2655                         if (fcport->loop_id != FC_NO_LOOP_ID &&
2656                             (fcport->flags & FCF_TAPE_PRESENT) == 0 &&
2657                             fcport->port_type != FCT_INITIATOR &&
2658                             fcport->port_type != FCT_BROADCAST) {
2659                                 ha->isp_ops->fabric_logout(ha, fcport->loop_id,
2660                                     fcport->d_id.b.domain, fcport->d_id.b.area,
2661                                     fcport->d_id.b.al_pa);
2662                                 fcport->loop_id = FC_NO_LOOP_ID;
2663                         }
2664
2665                         break;
2666                 }
2667
2668                 if (found)
2669                         continue;
2670
2671                 /* If device was not in our fcports list, then add it. */
2672                 list_add_tail(&new_fcport->list, new_fcports);
2673
2674                 /* Allocate a new replacement fcport. */
2675                 nxt_d_id.b24 = new_fcport->d_id.b24;
2676                 new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
2677                 if (new_fcport == NULL) {
2678                         kfree(swl);
2679                         return (QLA_MEMORY_ALLOC_FAILED);
2680                 }
2681                 new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
2682                 new_fcport->d_id.b24 = nxt_d_id.b24;
2683                 new_fcport->vp_idx = ha->vp_idx;
2684         }
2685
2686         kfree(swl);
2687         kfree(new_fcport);
2688
2689         if (!list_empty(new_fcports))
2690                 ha->device_flags |= DFLG_FABRIC_DEVICES;
2691
2692         return (rval);
2693 }
2694
2695 /*
2696  * qla2x00_find_new_loop_id
2697  *      Scan through our port list and find a new usable loop ID.
2698  *
2699  * Input:
2700  *      ha:     adapter state pointer.
2701  *      dev:    port structure pointer.
2702  *
2703  * Returns:
2704  *      qla2x00 local function return status code.
2705  *
2706  * Context:
2707  *      Kernel context.
2708  */
2709 static int
2710 qla2x00_find_new_loop_id(scsi_qla_host_t *ha, fc_port_t *dev)
2711 {
2712         int     rval;
2713         int     found;
2714         fc_port_t *fcport;
2715         uint16_t first_loop_id;
2716         scsi_qla_host_t *pha = to_qla_parent(ha);
2717
2718         rval = QLA_SUCCESS;
2719
2720         /* Save starting loop ID. */
2721         first_loop_id = dev->loop_id;
2722
2723         for (;;) {
2724                 /* Skip loop ID if already used by adapter. */
2725                 if (dev->loop_id == ha->loop_id) {
2726                         dev->loop_id++;
2727                 }
2728
2729                 /* Skip reserved loop IDs. */
2730                 while (qla2x00_is_reserved_id(ha, dev->loop_id)) {
2731                         dev->loop_id++;
2732                 }
2733
2734                 /* Reset loop ID if passed the end. */
2735                 if (dev->loop_id > ha->last_loop_id) {
2736                         /* first loop ID. */
2737                         dev->loop_id = ha->min_external_loopid;
2738                 }
2739
2740                 /* Check for loop ID being already in use. */
2741                 found = 0;
2742                 fcport = NULL;
2743                 list_for_each_entry(fcport, &pha->fcports, list) {
2744                         if (fcport->loop_id == dev->loop_id && fcport != dev) {
2745                                 /* ID possibly in use */
2746                                 found++;
2747                                 break;
2748                         }
2749                 }
2750
2751                 /* If not in use then it is free to use. */
2752                 if (!found) {
2753                         break;
2754                 }
2755
2756                 /* ID in use. Try next value. */
2757                 dev->loop_id++;
2758
2759                 /* If wrap around. No free ID to use. */
2760                 if (dev->loop_id == first_loop_id) {
2761                         dev->loop_id = FC_NO_LOOP_ID;
2762                         rval = QLA_FUNCTION_FAILED;
2763                         break;
2764                 }
2765         }
2766
2767         return (rval);
2768 }
2769
2770 /*
2771  * qla2x00_device_resync
2772  *      Marks devices in the database that needs resynchronization.
2773  *
2774  * Input:
2775  *      ha = adapter block pointer.
2776  *
2777  * Context:
2778  *      Kernel context.
2779  */
2780 static int
2781 qla2x00_device_resync(scsi_qla_host_t *ha)
2782 {
2783         int     rval;
2784         uint32_t mask;
2785         fc_port_t *fcport;
2786         uint32_t rscn_entry;
2787         uint8_t rscn_out_iter;
2788         uint8_t format;
2789         port_id_t d_id;
2790         scsi_qla_host_t *pha = to_qla_parent(ha);
2791
2792         rval = QLA_RSCNS_HANDLED;
2793
2794         while (ha->rscn_out_ptr != ha->rscn_in_ptr ||
2795             ha->flags.rscn_queue_overflow) {
2796
2797                 rscn_entry = ha->rscn_queue[ha->rscn_out_ptr];
2798                 format = MSB(MSW(rscn_entry));
2799                 d_id.b.domain = LSB(MSW(rscn_entry));
2800                 d_id.b.area = MSB(LSW(rscn_entry));
2801                 d_id.b.al_pa = LSB(LSW(rscn_entry));
2802
2803                 DEBUG(printk("scsi(%ld): RSCN queue entry[%d] = "
2804                     "[%02x/%02x%02x%02x].\n",
2805                     ha->host_no, ha->rscn_out_ptr, format, d_id.b.domain,
2806                     d_id.b.area, d_id.b.al_pa));
2807
2808                 ha->rscn_out_ptr++;
2809                 if (ha->rscn_out_ptr == MAX_RSCN_COUNT)
2810                         ha->rscn_out_ptr = 0;
2811
2812                 /* Skip duplicate entries. */
2813                 for (rscn_out_iter = ha->rscn_out_ptr;
2814                     !ha->flags.rscn_queue_overflow &&
2815                     rscn_out_iter != ha->rscn_in_ptr;
2816                     rscn_out_iter = (rscn_out_iter ==
2817                         (MAX_RSCN_COUNT - 1)) ? 0: rscn_out_iter + 1) {
2818
2819                         if (rscn_entry != ha->rscn_queue[rscn_out_iter])
2820                                 break;
2821
2822                         DEBUG(printk("scsi(%ld): Skipping duplicate RSCN queue "
2823                             "entry found at [%d].\n", ha->host_no,
2824                             rscn_out_iter));
2825
2826                         ha->rscn_out_ptr = rscn_out_iter;
2827                 }
2828
2829                 /* Queue overflow, set switch default case. */
2830                 if (ha->flags.rscn_queue_overflow) {
2831                         DEBUG(printk("scsi(%ld): device_resync: rscn "
2832                             "overflow.\n", ha->host_no));
2833
2834                         format = 3;
2835                         ha->flags.rscn_queue_overflow = 0;
2836                 }
2837
2838                 switch (format) {
2839                 case 0:
2840                         mask = 0xffffff;
2841                         break;
2842                 case 1:
2843                         mask = 0xffff00;
2844                         break;
2845                 case 2:
2846                         mask = 0xff0000;
2847                         break;
2848                 default:
2849                         mask = 0x0;
2850                         d_id.b24 = 0;
2851                         ha->rscn_out_ptr = ha->rscn_in_ptr;
2852                         break;
2853                 }
2854
2855                 rval = QLA_SUCCESS;
2856
2857                 list_for_each_entry(fcport, &pha->fcports, list) {
2858                         if (fcport->vp_idx != ha->vp_idx)
2859                                 continue;
2860
2861                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 ||
2862                             (fcport->d_id.b24 & mask) != d_id.b24 ||
2863                             fcport->port_type == FCT_BROADCAST)
2864                                 continue;
2865
2866                         if (atomic_read(&fcport->state) == FCS_ONLINE) {
2867                                 if (format != 3 ||
2868                                     fcport->port_type != FCT_INITIATOR) {
2869                                         qla2x00_mark_device_lost(ha, fcport,
2870                                             0, 0);
2871                                 }
2872                         }
2873                         fcport->flags &= ~FCF_FARP_DONE;
2874                 }
2875         }
2876         return (rval);
2877 }
2878
2879 /*
2880  * qla2x00_fabric_dev_login
2881  *      Login fabric target device and update FC port database.
2882  *
2883  * Input:
2884  *      ha:             adapter state pointer.
2885  *      fcport:         port structure list pointer.
2886  *      next_loopid:    contains value of a new loop ID that can be used
2887  *                      by the next login attempt.
2888  *
2889  * Returns:
2890  *      qla2x00 local function return status code.
2891  *
2892  * Context:
2893  *      Kernel context.
2894  */
2895 static int
2896 qla2x00_fabric_dev_login(scsi_qla_host_t *ha, fc_port_t *fcport,
2897     uint16_t *next_loopid)
2898 {
2899         int     rval;
2900         int     retry;
2901         uint8_t opts;
2902
2903         rval = QLA_SUCCESS;
2904         retry = 0;
2905
2906         rval = qla2x00_fabric_login(ha, fcport, next_loopid);
2907         if (rval == QLA_SUCCESS) {
2908                 /* Send an ADISC to tape devices.*/
2909                 opts = 0;
2910                 if (fcport->flags & FCF_TAPE_PRESENT)
2911                         opts |= BIT_1;
2912                 rval = qla2x00_get_port_database(ha, fcport, opts);
2913                 if (rval != QLA_SUCCESS) {
2914                         ha->isp_ops->fabric_logout(ha, fcport->loop_id,
2915                             fcport->d_id.b.domain, fcport->d_id.b.area,
2916                             fcport->d_id.b.al_pa);
2917                         qla2x00_mark_device_lost(ha, fcport, 1, 0);
2918                 } else {
2919                         qla2x00_update_fcport(ha, fcport);
2920                 }
2921         }
2922
2923         return (rval);
2924 }
2925
2926 /*
2927  * qla2x00_fabric_login
2928  *      Issue fabric login command.
2929  *
2930  * Input:
2931  *      ha = adapter block pointer.
2932  *      device = pointer to FC device type structure.
2933  *
2934  * Returns:
2935  *      0 - Login successfully
2936  *      1 - Login failed
2937  *      2 - Initiator device
2938  *      3 - Fatal error
2939  */
2940 int
2941 qla2x00_fabric_login(scsi_qla_host_t *ha, fc_port_t *fcport,
2942     uint16_t *next_loopid)
2943 {
2944         int     rval;
2945         int     retry;
2946         uint16_t tmp_loopid;
2947         uint16_t mb[MAILBOX_REGISTER_COUNT];
2948
2949         retry = 0;
2950         tmp_loopid = 0;
2951
2952         for (;;) {
2953                 DEBUG(printk("scsi(%ld): Trying Fabric Login w/loop id 0x%04x "
2954                     "for port %02x%02x%02x.\n",
2955                     ha->host_no, fcport->loop_id, fcport->d_id.b.domain,
2956                     fcport->d_id.b.area, fcport->d_id.b.al_pa));
2957
2958                 /* Login fcport on switch. */
2959                 ha->isp_ops->fabric_login(ha, fcport->loop_id,
2960                     fcport->d_id.b.domain, fcport->d_id.b.area,
2961                     fcport->d_id.b.al_pa, mb, BIT_0);
2962                 if (mb[0] == MBS_PORT_ID_USED) {
2963                         /*
2964                          * Device has another loop ID.  The firmware team
2965                          * recommends the driver perform an implicit login with
2966                          * the specified ID again. The ID we just used is save
2967                          * here so we return with an ID that can be tried by
2968                          * the next login.
2969                          */
2970                         retry++;
2971                         tmp_loopid = fcport->loop_id;
2972                         fcport->loop_id = mb[1];
2973
2974                         DEBUG(printk("Fabric Login: port in use - next "
2975                             "loop id=0x%04x, port Id=%02x%02x%02x.\n",
2976                             fcport->loop_id, fcport->d_id.b.domain,
2977                             fcport->d_id.b.area, fcport->d_id.b.al_pa));
2978
2979                 } else if (mb[0] == MBS_COMMAND_COMPLETE) {
2980                         /*
2981                          * Login succeeded.
2982                          */
2983                         if (retry) {
2984                                 /* A retry occurred before. */
2985                                 *next_loopid = tmp_loopid;
2986                         } else {
2987                                 /*
2988                                  * No retry occurred before. Just increment the
2989                                  * ID value for next login.
2990                                  */
2991                                 *next_loopid = (fcport->loop_id + 1);
2992                         }
2993
2994                         if (mb[1] & BIT_0) {
2995                                 fcport->port_type = FCT_INITIATOR;
2996                         } else {
2997                                 fcport->port_type = FCT_TARGET;
2998                                 if (mb[1] & BIT_1) {
2999                                         fcport->flags |= FCF_TAPE_PRESENT;
3000                                 }
3001                         }
3002
3003                         if (mb[10] & BIT_0)
3004                                 fcport->supported_classes |= FC_COS_CLASS2;
3005                         if (mb[10] & BIT_1)
3006                                 fcport->supported_classes |= FC_COS_CLASS3;
3007
3008                         rval = QLA_SUCCESS;
3009                         break;
3010                 } else if (mb[0] == MBS_LOOP_ID_USED) {
3011                         /*
3012                          * Loop ID already used, try next loop ID.
3013                          */
3014                         fcport->loop_id++;
3015                         rval = qla2x00_find_new_loop_id(ha, fcport);
3016                         if (rval != QLA_SUCCESS) {
3017                                 /* Ran out of loop IDs to use */
3018                                 break;
3019                         }
3020                 } else if (mb[0] == MBS_COMMAND_ERROR) {
3021                         /*
3022                          * Firmware possibly timed out during login. If NO
3023                          * retries are left to do then the device is declared
3024                          * dead.
3025                          */
3026                         *next_loopid = fcport->loop_id;
3027                         ha->isp_ops->fabric_logout(ha, fcport->loop_id,
3028                             fcport->d_id.b.domain, fcport->d_id.b.area,
3029                             fcport->d_id.b.al_pa);
3030                         qla2x00_mark_device_lost(ha, fcport, 1, 0);
3031
3032                         rval = 1;
3033                         break;
3034                 } else {
3035                         /*
3036                          * unrecoverable / not handled error
3037                          */
3038                         DEBUG2(printk("%s(%ld): failed=%x port_id=%02x%02x%02x "
3039                             "loop_id=%x jiffies=%lx.\n",
3040                             __func__, ha->host_no, mb[0],
3041                             fcport->d_id.b.domain, fcport->d_id.b.area,
3042                             fcport->d_id.b.al_pa, fcport->loop_id, jiffies));
3043
3044                         *next_loopid = fcport->loop_id;
3045                         ha->isp_ops->fabric_logout(ha, fcport->loop_id,
3046                             fcport->d_id.b.domain, fcport->d_id.b.area,
3047                             fcport->d_id.b.al_pa);
3048                         fcport->loop_id = FC_NO_LOOP_ID;
3049                         fcport->login_retry = 0;
3050
3051                         rval = 3;
3052                         break;
3053                 }
3054         }
3055
3056         return (rval);
3057 }
3058
3059 /*
3060  * qla2x00_local_device_login
3061  *      Issue local device login command.
3062  *
3063  * Input:
3064  *      ha = adapter block pointer.
3065  *      loop_id = loop id of device to login to.
3066  *
3067  * Returns (Where's the #define!!!!):
3068  *      0 - Login successfully
3069  *      1 - Login failed
3070  *      3 - Fatal error
3071  */
3072 int
3073 qla2x00_local_device_login(scsi_qla_host_t *ha, fc_port_t *fcport)
3074 {
3075         int             rval;
3076         uint16_t        mb[MAILBOX_REGISTER_COUNT];
3077
3078         memset(mb, 0, sizeof(mb));
3079         rval = qla2x00_login_local_device(ha, fcport, mb, BIT_0);
3080         if (rval == QLA_SUCCESS) {
3081                 /* Interrogate mailbox registers for any errors */
3082                 if (mb[0] == MBS_COMMAND_ERROR)
3083                         rval = 1;
3084                 else if (mb[0] == MBS_COMMAND_PARAMETER_ERROR)
3085                         /* device not in PCB table */
3086                         rval = 3;
3087         }
3088
3089         return (rval);
3090 }
3091
3092 /*
3093  *  qla2x00_loop_resync
3094  *      Resync with fibre channel devices.
3095  *
3096  * Input:
3097  *      ha = adapter block pointer.
3098  *
3099  * Returns:
3100  *      0 = success
3101  */
3102 int
3103 qla2x00_loop_resync(scsi_qla_host_t *ha)
3104 {
3105         int   rval;
3106         uint32_t wait_time;
3107
3108         rval = QLA_SUCCESS;
3109
3110         atomic_set(&ha->loop_state, LOOP_UPDATE);
3111         clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
3112         if (ha->flags.online) {
3113                 if (!(rval = qla2x00_fw_ready(ha))) {
3114                         /* Wait at most MAX_TARGET RSCNs for a stable link. */
3115                         wait_time = 256;
3116                         do {
3117                                 atomic_set(&ha->loop_state, LOOP_UPDATE);
3118
3119                                 /* Issue a marker after FW becomes ready. */
3120                                 qla2x00_marker(ha, 0, 0, MK_SYNC_ALL);
3121                                 ha->marker_needed = 0;
3122
3123                                 /* Remap devices on Loop. */
3124                                 clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
3125
3126                                 qla2x00_configure_loop(ha);
3127                                 wait_time--;
3128                         } while (!atomic_read(&ha->loop_down_timer) &&
3129                                 !(test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) &&
3130                                 wait_time &&
3131                                 (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)));
3132                 }
3133         }
3134
3135         if (test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
3136                 return (QLA_FUNCTION_FAILED);
3137         }
3138
3139         if (rval) {
3140                 DEBUG2_3(printk("%s(): **** FAILED ****\n", __func__));
3141         }
3142
3143         return (rval);
3144 }
3145
3146 void
3147 qla2x00_rescan_fcports(scsi_qla_host_t *ha)
3148 {
3149         int rescan_done;
3150         fc_port_t *fcport;
3151
3152         rescan_done = 0;
3153         list_for_each_entry(fcport, &ha->fcports, list) {
3154                 if ((fcport->flags & FCF_RESCAN_NEEDED) == 0)
3155                         continue;
3156
3157                 qla2x00_update_fcport(ha, fcport);
3158                 fcport->flags &= ~FCF_RESCAN_NEEDED;
3159
3160                 rescan_done = 1;
3161         }
3162         qla2x00_probe_for_all_luns(ha);
3163 }
3164
3165 void
3166 qla2x00_update_fcports(scsi_qla_host_t *ha)
3167 {
3168         fc_port_t *fcport;
3169
3170         /* Go with deferred removal of rport references. */
3171         list_for_each_entry(fcport, &ha->fcports, list)
3172                 if (fcport->drport)
3173                         qla2x00_rport_del(fcport);
3174 }
3175
3176 /*
3177 *  qla2x00_abort_isp
3178 *      Resets ISP and aborts all outstanding commands.
3179 *
3180 * Input:
3181 *      ha           = adapter block pointer.
3182 *
3183 * Returns:
3184 *      0 = success
3185 */
3186 int
3187 qla2x00_abort_isp(scsi_qla_host_t *ha)
3188 {
3189         int rval;
3190         unsigned long flags = 0;
3191         uint16_t       cnt;
3192         srb_t          *sp;
3193         uint8_t        status = 0;
3194
3195         if (ha->flags.online) {
3196                 ha->flags.online = 0;
3197                 clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
3198
3199                 qla_printk(KERN_INFO, ha,
3200                     "Performing ISP error recovery - ha= %p.\n", ha);
3201                 ha->isp_ops->reset_chip(ha);
3202
3203                 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
3204                 if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
3205                         atomic_set(&ha->loop_state, LOOP_DOWN);
3206                         qla2x00_mark_all_devices_lost(ha, 0);
3207                 } else {
3208                         if (!atomic_read(&ha->loop_down_timer))
3209                                 atomic_set(&ha->loop_down_timer,
3210                                     LOOP_DOWN_TIME);
3211                 }
3212
3213                 spin_lock_irqsave(&ha->hardware_lock, flags);
3214                 /* Requeue all commands in outstanding command list. */
3215                 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
3216                         sp = ha->outstanding_cmds[cnt];
3217                         if (sp) {
3218                                 ha->outstanding_cmds[cnt] = NULL;
3219                                 sp->flags = 0;
3220                                 sp->cmd->result = DID_RESET << 16;
3221                                 sp->cmd->host_scribble = (unsigned char *)NULL;
3222                                 qla2x00_sp_compl(ha, sp);
3223                         }
3224                 }
3225                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3226
3227                 ha->isp_ops->get_flash_version(ha, ha->request_ring);
3228
3229                 ha->isp_ops->nvram_config(ha);
3230
3231                 if (!qla2x00_restart_isp(ha)) {
3232                         clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
3233
3234                         if (!atomic_read(&ha->loop_down_timer)) {
3235                                 /*
3236                                  * Issue marker command only when we are going
3237                                  * to start the I/O .
3238                                  */
3239                                 ha->marker_needed = 1;
3240                         }
3241
3242                         ha->flags.online = 1;
3243
3244                         ha->isp_ops->enable_intrs(ha);
3245
3246                         ha->isp_abort_cnt = 0;
3247                         clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
3248
3249                         if (ha->eft) {
3250                                 rval = qla2x00_trace_control(ha, TC_ENABLE,
3251                                     ha->eft_dma, EFT_NUM_BUFFERS);
3252                                 if (rval) {
3253                                         qla_printk(KERN_WARNING, ha,
3254                                             "Unable to reinitialize EFT "
3255                                             "(%d).\n", rval);
3256                                 }
3257                         }
3258                 } else {        /* failed the ISP abort */
3259                         ha->flags.online = 1;
3260                         if (test_bit(ISP_ABORT_RETRY, &ha->dpc_flags)) {
3261                                 if (ha->isp_abort_cnt == 0) {
3262                                         qla_printk(KERN_WARNING, ha,
3263                                             "ISP error recovery failed - "
3264                                             "board disabled\n");
3265                                         /*
3266                                          * The next call disables the board
3267                                          * completely.
3268                                          */
3269                                         ha->isp_ops->reset_adapter(ha);
3270                                         ha->flags.online = 0;
3271                                         clear_bit(ISP_ABORT_RETRY,
3272                                             &ha->dpc_flags);
3273                                         status = 0;
3274                                 } else { /* schedule another ISP abort */
3275                                         ha->isp_abort_cnt--;
3276                                         DEBUG(printk("qla%ld: ISP abort - "
3277                                             "retry remaining %d\n",
3278                                             ha->host_no, ha->isp_abort_cnt));
3279                                         status = 1;
3280                                 }
3281                         } else {
3282                                 ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT;
3283                                 DEBUG(printk("qla2x00(%ld): ISP error recovery "
3284                                     "- retrying (%d) more times\n",
3285                                     ha->host_no, ha->isp_abort_cnt));
3286                                 set_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
3287                                 status = 1;
3288                         }
3289                 }
3290
3291         }
3292
3293         if (status) {
3294                 qla_printk(KERN_INFO, ha,
3295                         "qla2x00_abort_isp: **** FAILED ****\n");
3296         } else {
3297                 DEBUG(printk(KERN_INFO
3298                                 "qla2x00_abort_isp(%ld): exiting.\n",
3299                                 ha->host_no));
3300         }
3301
3302         return(status);
3303 }
3304
3305 /*
3306 *  qla2x00_restart_isp
3307 *      restarts the ISP after a reset
3308 *
3309 * Input:
3310 *      ha = adapter block pointer.
3311 *
3312 * Returns:
3313 *      0 = success
3314 */
3315 static int
3316 qla2x00_restart_isp(scsi_qla_host_t *ha)
3317 {
3318         uint8_t         status = 0;
3319         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3320         unsigned long   flags = 0;
3321         uint32_t wait_time;
3322
3323         /* If firmware needs to be loaded */
3324         if (qla2x00_isp_firmware(ha)) {
3325                 ha->flags.online = 0;
3326                 if (!(status = ha->isp_ops->chip_diag(ha))) {
3327                         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
3328                                 status = qla2x00_setup_chip(ha);
3329                                 goto done;
3330                         }
3331
3332                         spin_lock_irqsave(&ha->hardware_lock, flags);
3333
3334                         if (!IS_QLA24XX(ha) && !IS_QLA54XX(ha) &&
3335                             !IS_QLA25XX(ha)) {
3336                                 /*
3337                                  * Disable SRAM, Instruction RAM and GP RAM
3338                                  * parity.
3339                                  */
3340                                 WRT_REG_WORD(&reg->hccr,
3341                                     (HCCR_ENABLE_PARITY + 0x0));
3342                                 RD_REG_WORD(&reg->hccr);
3343                         }
3344
3345                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3346
3347                         status = qla2x00_setup_chip(ha);
3348
3349                         spin_lock_irqsave(&ha->hardware_lock, flags);
3350
3351                         if (!IS_QLA24XX(ha) && !IS_QLA54XX(ha) &&
3352                             !IS_QLA25XX(ha)) {
3353                                 /* Enable proper parity */
3354                                 if (IS_QLA2300(ha))
3355                                         /* SRAM parity */
3356                                         WRT_REG_WORD(&reg->hccr,
3357                                             (HCCR_ENABLE_PARITY + 0x1));
3358                                 else
3359                                         /*
3360                                          * SRAM, Instruction RAM and GP RAM
3361                                          * parity.
3362                                          */
3363                                         WRT_REG_WORD(&reg->hccr,
3364                                             (HCCR_ENABLE_PARITY + 0x7));
3365                                 RD_REG_WORD(&reg->hccr);
3366                         }
3367
3368                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3369                 }
3370         }
3371
3372  done:
3373         if (!status && !(status = qla2x00_init_rings(ha))) {
3374                 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
3375                 if (!(status = qla2x00_fw_ready(ha))) {
3376                         DEBUG(printk("%s(): Start configure loop, "
3377                             "status = %d\n", __func__, status));
3378
3379                         /* Issue a marker after FW becomes ready. */
3380                         qla2x00_marker(ha, 0, 0, MK_SYNC_ALL);
3381
3382                         ha->flags.online = 1;
3383                         /* Wait at most MAX_TARGET RSCNs for a stable link. */
3384                         wait_time = 256;
3385                         do {
3386                                 clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
3387                                 qla2x00_configure_loop(ha);
3388                                 wait_time--;
3389                         } while (!atomic_read(&ha->loop_down_timer) &&
3390                                 !(test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) &&
3391                                 wait_time &&
3392                                 (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)));
3393                 }
3394
3395                 /* if no cable then assume it's good */
3396                 if ((ha->device_flags & DFLG_NO_CABLE))
3397                         status = 0;
3398
3399                 DEBUG(printk("%s(): Configure loop done, status = 0x%x\n",
3400                                 __func__,
3401                                 status));
3402         }
3403         return (status);
3404 }
3405
3406 /*
3407 * qla2x00_reset_adapter
3408 *      Reset adapter.
3409 *
3410 * Input:
3411 *      ha = adapter block pointer.
3412 */
3413 void
3414 qla2x00_reset_adapter(scsi_qla_host_t *ha)
3415 {
3416         unsigned long flags = 0;
3417         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3418
3419         ha->flags.online = 0;
3420         ha->isp_ops->disable_intrs(ha);
3421
3422         spin_lock_irqsave(&ha->hardware_lock, flags);
3423         WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
3424         RD_REG_WORD(&reg->hccr);                        /* PCI Posting. */
3425         WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
3426         RD_REG_WORD(&reg->hccr);                        /* PCI Posting. */
3427         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3428 }
3429
3430 void
3431 qla24xx_reset_adapter(scsi_qla_host_t *ha)
3432 {
3433         unsigned long flags = 0;
3434         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
3435
3436         ha->flags.online = 0;
3437         ha->isp_ops->disable_intrs(ha);
3438
3439         spin_lock_irqsave(&ha->hardware_lock, flags);
3440         WRT_REG_DWORD(&reg->hccr, HCCRX_SET_RISC_RESET);
3441         RD_REG_DWORD(&reg->hccr);
3442         WRT_REG_DWORD(&reg->hccr, HCCRX_REL_RISC_PAUSE);
3443         RD_REG_DWORD(&reg->hccr);
3444         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3445 }
3446
3447 /* On sparc systems, obtain port and node WWN from firmware
3448  * properties.
3449  */
3450 static void qla24xx_nvram_wwn_from_ofw(scsi_qla_host_t *ha, struct nvram_24xx *nv)
3451 {
3452 #ifdef CONFIG_SPARC
3453         struct pci_dev *pdev = ha->pdev;
3454         struct device_node *dp = pci_device_to_OF_node(pdev);
3455         const u8 *val;
3456         int len;
3457
3458         val = of_get_property(dp, "port-wwn", &len);
3459         if (val && len >= WWN_SIZE)
3460                 memcpy(nv->port_name, val, WWN_SIZE);
3461
3462         val = of_get_property(dp, "node-wwn", &len);
3463         if (val && len >= WWN_SIZE)
3464                 memcpy(nv->node_name, val, WWN_SIZE);
3465 #endif
3466 }
3467
3468 int
3469 qla24xx_nvram_config(scsi_qla_host_t *ha)
3470 {
3471         int   rval;
3472         struct init_cb_24xx *icb;
3473         struct nvram_24xx *nv;
3474         uint32_t *dptr;
3475         uint8_t  *dptr1, *dptr2;
3476         uint32_t chksum;
3477         uint16_t cnt;
3478
3479         rval = QLA_SUCCESS;
3480         icb = (struct init_cb_24xx *)ha->init_cb;
3481         nv = ha->nvram;
3482
3483         /* Determine NVRAM starting address. */
3484         ha->nvram_size = sizeof(struct nvram_24xx);
3485         ha->nvram_base = FA_NVRAM_FUNC0_ADDR;
3486         ha->vpd_size = FA_NVRAM_VPD_SIZE;
3487         ha->vpd_base = FA_NVRAM_VPD0_ADDR;
3488         if (PCI_FUNC(ha->pdev->devfn)) {
3489                 ha->nvram_base = FA_NVRAM_FUNC1_ADDR;
3490                 ha->vpd_base = FA_NVRAM_VPD1_ADDR;
3491         }
3492
3493         /* Get VPD data into cache */
3494         ha->vpd = ha->nvram + VPD_OFFSET;
3495         ha->isp_ops->read_nvram(ha, (uint8_t *)ha->vpd,
3496             ha->nvram_base - FA_NVRAM_FUNC0_ADDR, FA_NVRAM_VPD_SIZE * 4);
3497
3498         /* Get NVRAM data into cache and calculate checksum. */
3499         dptr = (uint32_t *)nv;
3500         ha->isp_ops->read_nvram(ha, (uint8_t *)dptr, ha->nvram_base,
3501             ha->nvram_size);
3502         for (cnt = 0, chksum = 0; cnt < ha->nvram_size >> 2; cnt++)
3503                 chksum += le32_to_cpu(*dptr++);
3504
3505         DEBUG5(printk("scsi(%ld): Contents of NVRAM\n", ha->host_no));
3506         DEBUG5(qla2x00_dump_buffer((uint8_t *)nv, ha->nvram_size));
3507
3508         /* Bad NVRAM data, set defaults parameters. */
3509         if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' || nv->id[2] != 'P'
3510             || nv->id[3] != ' ' ||
3511             nv->nvram_version < __constant_cpu_to_le16(ICB_VERSION)) {
3512                 /* Reset NVRAM data. */
3513                 qla_printk(KERN_WARNING, ha, "Inconsistent NVRAM detected: "
3514                     "checksum=0x%x id=%c version=0x%x.\n", chksum, nv->id[0],
3515                     le16_to_cpu(nv->nvram_version));
3516                 qla_printk(KERN_WARNING, ha, "Falling back to functioning (yet "
3517                     "invalid -- WWPN) defaults.\n");
3518
3519                 /*
3520                  * Set default initialization control block.
3521                  */
3522                 memset(nv, 0, ha->nvram_size);
3523                 nv->nvram_version = __constant_cpu_to_le16(ICB_VERSION);
3524                 nv->version = __constant_cpu_to_le16(ICB_VERSION);
3525                 nv->frame_payload_size = __constant_cpu_to_le16(2048);
3526                 nv->execution_throttle = __constant_cpu_to_le16(0xFFFF);
3527                 nv->exchange_count = __constant_cpu_to_le16(0);
3528                 nv->hard_address = __constant_cpu_to_le16(124);
3529                 nv->port_name[0] = 0x21;
3530                 nv->port_name[1] = 0x00 + PCI_FUNC(ha->pdev->devfn);
3531                 nv->port_name[2] = 0x00;
3532                 nv->port_name[3] = 0xe0;
3533                 nv->port_name[4] = 0x8b;
3534                 nv->port_name[5] = 0x1c;
3535                 nv->port_name[6] = 0x55;
3536                 nv->port_name[7] = 0x86;
3537                 nv->node_name[0] = 0x20;
3538                 nv->node_name[1] = 0x00;
3539                 nv->node_name[2] = 0x00;
3540                 nv->node_name[3] = 0xe0;
3541                 nv->node_name[4] = 0x8b;
3542                 nv->node_name[5] = 0x1c;
3543                 nv->node_name[6] = 0x55;
3544                 nv->node_name[7] = 0x86;
3545                 qla24xx_nvram_wwn_from_ofw(ha, nv);
3546                 nv->login_retry_count = __constant_cpu_to_le16(8);
3547                 nv->interrupt_delay_timer = __constant_cpu_to_le16(0);
3548                 nv->login_timeout = __constant_cpu_to_le16(0);
3549                 nv->firmware_options_1 =
3550                     __constant_cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1);
3551                 nv->firmware_options_2 = __constant_cpu_to_le32(2 << 4);
3552                 nv->firmware_options_2 |= __constant_cpu_to_le32(BIT_12);
3553                 nv->firmware_options_3 = __constant_cpu_to_le32(2 << 13);
3554                 nv->host_p = __constant_cpu_to_le32(BIT_11|BIT_10);
3555                 nv->efi_parameters = __constant_cpu_to_le32(0);
3556                 nv->reset_delay = 5;
3557                 nv->max_luns_per_target = __constant_cpu_to_le16(128);
3558                 nv->port_down_retry_count = __constant_cpu_to_le16(30);
3559                 nv->link_down_timeout = __constant_cpu_to_le16(30);
3560
3561                 rval = 1;
3562         }
3563
3564         /* Reset Initialization control block */
3565         memset(icb, 0, sizeof(struct init_cb_24xx));
3566
3567         /* Copy 1st segment. */
3568         dptr1 = (uint8_t *)icb;
3569         dptr2 = (uint8_t *)&nv->version;
3570         cnt = (uint8_t *)&icb->response_q_inpointer - (uint8_t *)&icb->version;
3571         while (cnt--)
3572                 *dptr1++ = *dptr2++;
3573
3574         icb->login_retry_count = nv->login_retry_count;
3575         icb->link_down_on_nos = nv->link_down_on_nos;
3576
3577         /* Copy 2nd segment. */
3578         dptr1 = (uint8_t *)&icb->interrupt_delay_timer;
3579         dptr2 = (uint8_t *)&nv->interrupt_delay_timer;
3580         cnt = (uint8_t *)&icb->reserved_3 -
3581             (uint8_t *)&icb->interrupt_delay_timer;
3582         while (cnt--)
3583                 *dptr1++ = *dptr2++;
3584
3585         /*
3586          * Setup driver NVRAM options.
3587          */
3588         qla2x00_set_model_info(ha, nv->model_name, sizeof(nv->model_name),
3589             "QLA2462");
3590
3591         /* Use alternate WWN? */
3592         if (nv->host_p & __constant_cpu_to_le32(BIT_15)) {
3593                 memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
3594                 memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
3595         }
3596
3597         /* Prepare nodename */
3598         if ((icb->firmware_options_1 & __constant_cpu_to_le32(BIT_14)) == 0) {
3599                 /*
3600                  * Firmware will apply the following mask if the nodename was
3601                  * not provided.
3602                  */
3603                 memcpy(icb->node_name, icb->port_name, WWN_SIZE);
3604                 icb->node_name[0] &= 0xF0;
3605         }
3606
3607         /* Set host adapter parameters. */
3608         ha->flags.disable_risc_code_load = 0;
3609         ha->flags.enable_lip_reset = 0;
3610         ha->flags.enable_lip_full_login =
3611             le32_to_cpu(nv->host_p) & BIT_10 ? 1: 0;
3612         ha->flags.enable_target_reset =
3613             le32_to_cpu(nv->host_p) & BIT_11 ? 1: 0;
3614         ha->flags.enable_led_scheme = 0;
3615         ha->flags.disable_serdes = le32_to_cpu(nv->host_p) & BIT_5 ? 1: 0;
3616
3617         ha->operating_mode = (le32_to_cpu(icb->firmware_options_2) &
3618             (BIT_6 | BIT_5 | BIT_4)) >> 4;
3619
3620         memcpy(ha->fw_seriallink_options24, nv->seriallink_options,
3621             sizeof(ha->fw_seriallink_options24));
3622
3623         /* save HBA serial number */
3624         ha->serial0 = icb->port_name[5];
3625         ha->serial1 = icb->port_name[6];
3626         ha->serial2 = icb->port_name[7];
3627         ha->node_name = icb->node_name;
3628         ha->port_name = icb->port_name;
3629
3630         icb->execution_throttle = __constant_cpu_to_le16(0xFFFF);
3631
3632         ha->retry_count = le16_to_cpu(nv->login_retry_count);
3633
3634         /* Set minimum login_timeout to 4 seconds. */
3635         if (le16_to_cpu(nv->login_timeout) < ql2xlogintimeout)
3636                 nv->login_timeout = cpu_to_le16(ql2xlogintimeout);
3637         if (le16_to_cpu(nv->login_timeout) < 4)
3638                 nv->login_timeout = __constant_cpu_to_le16(4);
3639         ha->login_timeout = le16_to_cpu(nv->login_timeout);
3640         icb->login_timeout = cpu_to_le16(nv->login_timeout);
3641
3642         /* Set minimum RATOV to 200 tenths of a second. */
3643         ha->r_a_tov = 200;
3644
3645         ha->loop_reset_delay = nv->reset_delay;
3646
3647         /* Link Down Timeout = 0:
3648          *
3649          *      When Port Down timer expires we will start returning
3650          *      I/O's to OS with "DID_NO_CONNECT".
3651          *
3652          * Link Down Timeout != 0:
3653          *
3654          *       The driver waits for the link to come up after link down
3655          *       before returning I/Os to OS with "DID_NO_CONNECT".
3656          */
3657         if (le16_to_cpu(nv->link_down_timeout) == 0) {
3658                 ha->loop_down_abort_time =
3659                     (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
3660         } else {
3661                 ha->link_down_timeout = le16_to_cpu(nv->link_down_timeout);
3662                 ha->loop_down_abort_time =
3663                     (LOOP_DOWN_TIME - ha->link_down_timeout);
3664         }
3665
3666         /* Need enough time to try and get the port back. */
3667         ha->port_down_retry_count = le16_to_cpu(nv->port_down_retry_count);
3668         if (qlport_down_retry)
3669                 ha->port_down_retry_count = qlport_down_retry;
3670
3671         /* Set login_retry_count */
3672         ha->login_retry_count  = le16_to_cpu(nv->login_retry_count);
3673         if (ha->port_down_retry_count ==
3674             le16_to_cpu(nv->port_down_retry_count) &&
3675             ha->port_down_retry_count > 3)
3676                 ha->login_retry_count = ha->port_down_retry_count;
3677         else if (ha->port_down_retry_count > (int)ha->login_retry_count)
3678                 ha->login_retry_count = ha->port_down_retry_count;
3679         if (ql2xloginretrycount)
3680                 ha->login_retry_count = ql2xloginretrycount;
3681
3682         /* Enable ZIO. */
3683         if (!ha->flags.init_done) {
3684                 ha->zio_mode = le32_to_cpu(icb->firmware_options_2) &
3685                     (BIT_3 | BIT_2 | BIT_1 | BIT_0);
3686                 ha->zio_timer = le16_to_cpu(icb->interrupt_delay_timer) ?
3687                     le16_to_cpu(icb->interrupt_delay_timer): 2;
3688         }
3689         icb->firmware_options_2 &= __constant_cpu_to_le32(
3690             ~(BIT_3 | BIT_2 | BIT_1 | BIT_0));
3691         ha->flags.process_response_queue = 0;
3692         if (ha->zio_mode != QLA_ZIO_DISABLED) {
3693                 ha->zio_mode = QLA_ZIO_MODE_6;
3694
3695                 DEBUG2(printk("scsi(%ld): ZIO mode %d enabled; timer delay "
3696                     "(%d us).\n", ha->host_no, ha->zio_mode,
3697                     ha->zio_timer * 100));
3698                 qla_printk(KERN_INFO, ha,
3699                     "ZIO mode %d enabled; timer delay (%d us).\n",
3700                     ha->zio_mode, ha->zio_timer * 100);
3701
3702                 icb->firmware_options_2 |= cpu_to_le32(
3703                     (uint32_t)ha->zio_mode);
3704                 icb->interrupt_delay_timer = cpu_to_le16(ha->zio_timer);
3705                 ha->flags.process_response_queue = 1;
3706         }
3707
3708         if (rval) {
3709                 DEBUG2_3(printk(KERN_WARNING
3710                     "scsi(%ld): NVRAM configuration failed!\n", ha->host_no));
3711         }
3712         return (rval);
3713 }
3714
3715 static int
3716 qla24xx_load_risc_flash(scsi_qla_host_t *ha, uint32_t *srisc_addr)
3717 {
3718         int     rval;
3719         int     segments, fragment;
3720         uint32_t faddr;
3721         uint32_t *dcode, dlen;
3722         uint32_t risc_addr;
3723         uint32_t risc_size;
3724         uint32_t i;
3725
3726         rval = QLA_SUCCESS;
3727
3728         segments = FA_RISC_CODE_SEGMENTS;
3729         faddr = FA_RISC_CODE_ADDR;
3730         dcode = (uint32_t *)ha->request_ring;
3731         *srisc_addr = 0;
3732
3733         /* Validate firmware image by checking version. */
3734         qla24xx_read_flash_data(ha, dcode, faddr + 4, 4);
3735         for (i = 0; i < 4; i++)
3736                 dcode[i] = be32_to_cpu(dcode[i]);
3737         if ((dcode[0] == 0xffffffff && dcode[1] == 0xffffffff &&
3738             dcode[2] == 0xffffffff && dcode[3] == 0xffffffff) ||
3739             (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
3740                 dcode[3] == 0)) {
3741                 qla_printk(KERN_WARNING, ha,
3742                     "Unable to verify integrity of flash firmware image!\n");
3743                 qla_printk(KERN_WARNING, ha,
3744                     "Firmware data: %08x %08x %08x %08x!\n", dcode[0],
3745                     dcode[1], dcode[2], dcode[3]);
3746
3747                 return QLA_FUNCTION_FAILED;
3748         }
3749
3750         while (segments && rval == QLA_SUCCESS) {
3751                 /* Read segment's load information. */
3752                 qla24xx_read_flash_data(ha, dcode, faddr, 4);
3753
3754                 risc_addr = be32_to_cpu(dcode[2]);
3755                 *srisc_addr = *srisc_addr == 0 ? risc_addr : *srisc_addr;
3756                 risc_size = be32_to_cpu(dcode[3]);
3757
3758                 fragment = 0;
3759                 while (risc_size > 0 && rval == QLA_SUCCESS) {
3760                         dlen = (uint32_t)(ha->fw_transfer_size >> 2);
3761                         if (dlen > risc_size)
3762                                 dlen = risc_size;
3763
3764                         DEBUG7(printk("scsi(%ld): Loading risc segment@ risc "
3765                             "addr %x, number of dwords 0x%x, offset 0x%x.\n",
3766                             ha->host_no, risc_addr, dlen, faddr));
3767
3768                         qla24xx_read_flash_data(ha, dcode, faddr, dlen);
3769                         for (i = 0; i < dlen; i++)
3770                                 dcode[i] = swab32(dcode[i]);
3771
3772                         rval = qla2x00_load_ram(ha, ha->request_dma, risc_addr,
3773                             dlen);
3774                         if (rval) {
3775                                 DEBUG(printk("scsi(%ld):[ERROR] Failed to load "
3776                                     "segment %d of firmware\n", ha->host_no,
3777                                     fragment));
3778                                 qla_printk(KERN_WARNING, ha,
3779                                     "[ERROR] Failed to load segment %d of "
3780                                     "firmware\n", fragment);
3781                                 break;
3782                         }
3783
3784                         faddr += dlen;
3785                         risc_addr += dlen;
3786                         risc_size -= dlen;
3787                         fragment++;
3788                 }
3789
3790                 /* Next segment. */
3791                 segments--;
3792         }
3793
3794         return rval;
3795 }
3796
3797 #define QLA_FW_URL "ftp://ftp.qlogic.com/outgoing/linux/firmware/"
3798
3799 int
3800 qla2x00_load_risc(scsi_qla_host_t *ha, uint32_t *srisc_addr)
3801 {
3802         int     rval;
3803         int     i, fragment;
3804         uint16_t *wcode, *fwcode;
3805         uint32_t risc_addr, risc_size, fwclen, wlen, *seg;
3806         struct fw_blob *blob;
3807
3808         /* Load firmware blob. */
3809         blob = qla2x00_request_firmware(ha);
3810         if (!blob) {
3811                 qla_printk(KERN_ERR, ha, "Firmware image unavailable.\n");
3812                 qla_printk(KERN_ERR, ha, "Firmware images can be retrieved "
3813                     "from: " QLA_FW_URL ".\n");
3814                 return QLA_FUNCTION_FAILED;
3815         }
3816
3817         rval = QLA_SUCCESS;
3818
3819         wcode = (uint16_t *)ha->request_ring;
3820         *srisc_addr = 0;
3821         fwcode = (uint16_t *)blob->fw->data;
3822         fwclen = 0;
3823
3824         /* Validate firmware image by checking version. */
3825         if (blob->fw->size < 8 * sizeof(uint16_t)) {
3826                 qla_printk(KERN_WARNING, ha,
3827                     "Unable to verify integrity of firmware image (%Zd)!\n",
3828                     blob->fw->size);
3829                 goto fail_fw_integrity;
3830         }
3831         for (i = 0; i < 4; i++)
3832                 wcode[i] = be16_to_cpu(fwcode[i + 4]);
3833         if ((wcode[0] == 0xffff && wcode[1] == 0xffff && wcode[2] == 0xffff &&
3834             wcode[3] == 0xffff) || (wcode[0] == 0 && wcode[1] == 0 &&
3835                 wcode[2] == 0 && wcode[3] == 0)) {
3836                 qla_printk(KERN_WARNING, ha,
3837                     "Unable to verify integrity of firmware image!\n");
3838                 qla_printk(KERN_WARNING, ha,
3839                     "Firmware data: %04x %04x %04x %04x!\n", wcode[0],
3840                     wcode[1], wcode[2], wcode[3]);
3841                 goto fail_fw_integrity;
3842         }
3843
3844         seg = blob->segs;
3845         while (*seg && rval == QLA_SUCCESS) {
3846                 risc_addr = *seg;
3847                 *srisc_addr = *srisc_addr == 0 ? *seg : *srisc_addr;
3848                 risc_size = be16_to_cpu(fwcode[3]);
3849
3850                 /* Validate firmware image size. */
3851                 fwclen += risc_size * sizeof(uint16_t);
3852                 if (blob->fw->size < fwclen) {
3853                         qla_printk(KERN_WARNING, ha,
3854                             "Unable to verify integrity of firmware image "
3855                             "(%Zd)!\n", blob->fw->size);
3856                         goto fail_fw_integrity;
3857                 }
3858
3859                 fragment = 0;
3860                 while (risc_size > 0 && rval == QLA_SUCCESS) {
3861                         wlen = (uint16_t)(ha->fw_transfer_size >> 1);
3862                         if (wlen > risc_size)
3863                                 wlen = risc_size;
3864
3865                         DEBUG7(printk("scsi(%ld): Loading risc segment@ risc "
3866                             "addr %x, number of words 0x%x.\n", ha->host_no,
3867                             risc_addr, wlen));
3868
3869                         for (i = 0; i < wlen; i++)
3870                                 wcode[i] = swab16(fwcode[i]);
3871
3872                         rval = qla2x00_load_ram(ha, ha->request_dma, risc_addr,
3873                             wlen);
3874                         if (rval) {
3875                                 DEBUG(printk("scsi(%ld):[ERROR] Failed to load "
3876                                     "segment %d of firmware\n", ha->host_no,
3877                                     fragment));
3878                                 qla_printk(KERN_WARNING, ha,
3879                                     "[ERROR] Failed to load segment %d of "
3880                                     "firmware\n", fragment);
3881                                 break;
3882                         }
3883
3884                         fwcode += wlen;
3885                         risc_addr += wlen;
3886                         risc_size -= wlen;
3887                         fragment++;
3888                 }
3889
3890                 /* Next segment. */
3891                 seg++;
3892         }
3893         return rval;
3894
3895 fail_fw_integrity:
3896         return QLA_FUNCTION_FAILED;
3897 }
3898
3899 int
3900 qla24xx_load_risc(scsi_qla_host_t *ha, uint32_t *srisc_addr)
3901 {
3902         int     rval;
3903         int     segments, fragment;
3904         uint32_t *dcode, dlen;
3905         uint32_t risc_addr;
3906         uint32_t risc_size;
3907         uint32_t i;
3908         struct fw_blob *blob;
3909         uint32_t *fwcode, fwclen;
3910
3911         /* Load firmware blob. */
3912         blob = qla2x00_request_firmware(ha);
3913         if (!blob) {
3914                 qla_printk(KERN_ERR, ha, "Firmware image unavailable.\n");
3915                 qla_printk(KERN_ERR, ha, "Firmware images can be retrieved "
3916                     "from: " QLA_FW_URL ".\n");
3917
3918                 /* Try to load RISC code from flash. */
3919                 qla_printk(KERN_ERR, ha, "Attempting to load (potentially "
3920                     "outdated) firmware from flash.\n");
3921                 return qla24xx_load_risc_flash(ha, srisc_addr);
3922         }
3923
3924         rval = QLA_SUCCESS;
3925
3926         segments = FA_RISC_CODE_SEGMENTS;
3927         dcode = (uint32_t *)ha->request_ring;
3928         *srisc_addr = 0;
3929         fwcode = (uint32_t *)blob->fw->data;
3930         fwclen = 0;
3931
3932         /* Validate firmware image by checking version. */
3933         if (blob->fw->size < 8 * sizeof(uint32_t)) {
3934                 qla_printk(KERN_WARNING, ha,
3935                     "Unable to verify integrity of firmware image (%Zd)!\n",
3936                     blob->fw->size);
3937                 goto fail_fw_integrity;
3938         }
3939         for (i = 0; i < 4; i++)
3940                 dcode[i] = be32_to_cpu(fwcode[i + 4]);
3941         if ((dcode[0] == 0xffffffff && dcode[1] == 0xffffffff &&
3942             dcode[2] == 0xffffffff && dcode[3] == 0xffffffff) ||
3943             (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
3944                 dcode[3] == 0)) {
3945                 qla_printk(KERN_WARNING, ha,
3946                     "Unable to verify integrity of firmware image!\n");
3947                 qla_printk(KERN_WARNING, ha,
3948                     "Firmware data: %08x %08x %08x %08x!\n", dcode[0],
3949                     dcode[1], dcode[2], dcode[3]);
3950                 goto fail_fw_integrity;
3951         }
3952
3953         while (segments && rval == QLA_SUCCESS) {
3954                 risc_addr = be32_to_cpu(fwcode[2]);
3955                 *srisc_addr = *srisc_addr == 0 ? risc_addr : *srisc_addr;
3956                 risc_size = be32_to_cpu(fwcode[3]);
3957
3958                 /* Validate firmware image size. */
3959                 fwclen += risc_size * sizeof(uint32_t);
3960                 if (blob->fw->size < fwclen) {
3961                         qla_printk(KERN_WARNING, ha,
3962                             "Unable to verify integrity of firmware image "
3963                             "(%Zd)!\n", blob->fw->size);
3964
3965                         goto fail_fw_integrity;
3966                 }
3967
3968                 fragment = 0;
3969                 while (risc_size > 0 && rval == QLA_SUCCESS) {
3970                         dlen = (uint32_t)(ha->fw_transfer_size >> 2);
3971                         if (dlen > risc_size)
3972                                 dlen = risc_size;
3973
3974                         DEBUG7(printk("scsi(%ld): Loading risc segment@ risc "
3975                             "addr %x, number of dwords 0x%x.\n", ha->host_no,
3976                             risc_addr, dlen));
3977
3978                         for (i = 0; i < dlen; i++)
3979                                 dcode[i] = swab32(fwcode[i]);
3980
3981                         rval = qla2x00_load_ram(ha, ha->request_dma, risc_addr,
3982                             dlen);
3983                         if (rval) {
3984                                 DEBUG(printk("scsi(%ld):[ERROR] Failed to load "
3985                                     "segment %d of firmware\n", ha->host_no,
3986                                     fragment));
3987                                 qla_printk(KERN_WARNING, ha,
3988                                     "[ERROR] Failed to load segment %d of "
3989                                     "firmware\n", fragment);
3990                                 break;
3991                         }
3992
3993                         fwcode += dlen;
3994                         risc_addr += dlen;
3995                         risc_size -= dlen;
3996                         fragment++;
3997                 }
3998
3999                 /* Next segment. */
4000                 segments--;
4001         }
4002         return rval;
4003
4004 fail_fw_integrity:
4005         return QLA_FUNCTION_FAILED;
4006 }
4007
4008 void
4009 qla2x00_try_to_stop_firmware(scsi_qla_host_t *ha)
4010 {
4011         int ret, retries;
4012
4013         if (!IS_FWI2_CAPABLE(ha))
4014                 return;
4015         if (!ha->fw_major_version)
4016                 return;
4017
4018         ret = qla2x00_stop_firmware(ha);
4019         for (retries = 5; ret != QLA_SUCCESS && retries ; retries--) {
4020                 qla2x00_reset_chip(ha);
4021                 if (qla2x00_chip_diag(ha) != QLA_SUCCESS)
4022                         continue;
4023                 if (qla2x00_setup_chip(ha) != QLA_SUCCESS)
4024                         continue;
4025                 qla_printk(KERN_INFO, ha,
4026                     "Attempting retry of stop-firmware command...\n");
4027                 ret = qla2x00_stop_firmware(ha);
4028         }
4029 }
4030
4031 int
4032 qla24xx_configure_vhba(scsi_qla_host_t *ha)
4033 {
4034         int rval = QLA_SUCCESS;
4035         uint16_t mb[MAILBOX_REGISTER_COUNT];
4036
4037         if (!ha->parent)
4038                 return -EINVAL;
4039
4040         rval = qla2x00_fw_ready(ha);
4041         if (rval == QLA_SUCCESS) {
4042                 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
4043                 qla2x00_marker(ha, 0, 0, MK_SYNC_ALL);
4044         }
4045
4046         ha->flags.management_server_logged_in = 0;
4047
4048         /* Login to SNS first */
4049         qla24xx_login_fabric(ha, NPH_SNS, 0xff, 0xff, 0xfc,
4050             mb, BIT_1);
4051         if (mb[0] != MBS_COMMAND_COMPLETE) {
4052                 DEBUG15(qla_printk(KERN_INFO, ha,
4053                     "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x "
4054                     "mb[2]=%x mb[6]=%x mb[7]=%x\n", NPH_SNS,
4055                     mb[0], mb[1], mb[2], mb[6], mb[7]));
4056                 return (QLA_FUNCTION_FAILED);
4057         }
4058
4059         atomic_set(&ha->loop_down_timer, 0);
4060         atomic_set(&ha->loop_state, LOOP_UP);
4061         set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
4062         set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
4063         rval = qla2x00_loop_resync(ha);
4064
4065         return rval;
4066 }