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_enable_eft_trace(ha, eft_dma, EFT_NUM_BUFFERS);
 770                 if (rval) {
 771                         qla_printk(KERN_WARNING, ha, "Unable to initialize "
 772                             "EFT (%d).\n", rval);
 773                         dma_free_coherent(&ha->pdev->dev, EFT_SIZE, eft,
 774                             eft_dma);
 775                         goto cont_alloc;
 776                 }
 777
 778                 qla_printk(KERN_INFO, ha, "Allocated (%d KB) for EFT...\n",
 779                     EFT_SIZE / 1024);
 780
 781                 eft_size = EFT_SIZE;
 782                 memset(eft, 0, eft_size);
 783                 ha->eft_dma = eft_dma;
 784                 ha->eft = eft;
 785         }
 786 cont_alloc:
 787         req_q_size = ha->request_q_length * sizeof(request_t);
 788         rsp_q_size = ha->response_q_length * sizeof(response_t);
 789
 790         dump_size = offsetof(struct qla2xxx_fw_dump, isp);
 791         dump_size += fixed_size + mem_size + req_q_size + rsp_q_size +
 792             eft_size;
 793
 794         ha->fw_dump = vmalloc(dump_size);
 795         if (!ha->fw_dump) {
 796                 qla_printk(KERN_WARNING, ha, "Unable to allocate (%d KB) for "
 797                     "firmware dump!!!\n", dump_size / 1024);
 798
 799                 if (ha->eft) {
 800                         dma_free_coherent(&ha->pdev->dev, eft_size, ha->eft,
 801                             ha->eft_dma);
 802                         ha->eft = NULL;
 803                         ha->eft_dma = 0;
 804                 }
 805                 return;
 806         }
 807
 808         qla_printk(KERN_INFO, ha, "Allocated (%d KB) for firmware dump...\n",
 809             dump_size / 1024);
 810
 811         ha->fw_dump_len = dump_size;
 812         ha->fw_dump->signature[0] = 'Q';
 813         ha->fw_dump->signature[1] = 'L';
 814         ha->fw_dump->signature[2] = 'G';
 815         ha->fw_dump->signature[3] = 'C';
 816         ha->fw_dump->version = __constant_htonl(1);
 817
 818         ha->fw_dump->fixed_size = htonl(fixed_size);
 819         ha->fw_dump->mem_size = htonl(mem_size);
 820         ha->fw_dump->req_q_size = htonl(req_q_size);
 821         ha->fw_dump->rsp_q_size = htonl(rsp_q_size);
 822
 823         ha->fw_dump->eft_size = htonl(eft_size);
 824         ha->fw_dump->eft_addr_l = htonl(LSD(ha->eft_dma));
 825         ha->fw_dump->eft_addr_h = htonl(MSD(ha->eft_dma));
 826
 827         ha->fw_dump->header_size =
 828             htonl(offsetof(struct qla2xxx_fw_dump, isp));
 829 }
 830
 831 /**
 832  * qla2x00_resize_request_q() - Resize request queue given available ISP memory.
 833  * @ha: HA context
 834  *
 835  * Returns 0 on success.
 836  */
 837 static void
 838 qla2x00_resize_request_q(scsi_qla_host_t *ha)
 839 {
 840         int rval;
 841         uint16_t fw_iocb_cnt = 0;
 842         uint16_t request_q_length = REQUEST_ENTRY_CNT_2XXX_EXT_MEM;
 843         dma_addr_t request_dma;
 844         request_t *request_ring;
 845
 846         /* Valid only on recent ISPs. */
 847         if (IS_QLA2100(ha) || IS_QLA2200(ha))
 848                 return;
 849
 850         /* Retrieve IOCB counts available to the firmware. */
 851         rval = qla2x00_get_resource_cnts(ha, NULL, NULL, NULL, &fw_iocb_cnt,
 852             &ha->max_npiv_vports);
 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) || IS_QLA25XX(ha)) &&
 920                                     (ha->fw_attributes & BIT_2)) {
 921                                         ha->flags.npiv_supported = 1;
 922                                         if ((!ha->max_npiv_vports) ||
 923                                             ((ha->max_npiv_vports + 1) %
 924                                             MIN_MULTI_ID_FABRIC))
 925                                                 ha->max_npiv_vports =
 926                                                     MIN_MULTI_ID_FABRIC - 1;
 927                                 }
 928
 929                                 if (ql2xallocfwdump)
 930                                         qla2x00_alloc_fw_dump(ha);
 931                         }
 932                 } else {
 933                         DEBUG2(printk(KERN_INFO
 934                             "scsi(%ld): ISP Firmware failed checksum.\n",
 935                             ha->host_no));
 936                 }
 937         }
 938
 939         if (rval) {
 940                 DEBUG2_3(printk("scsi(%ld): Setup chip **** FAILED ****.\n",
 941                     ha->host_no));
 942         }
 943
 944         return (rval);
 945 }
 946
 947 /**
 948  * qla2x00_init_response_q_entries() - Initializes response queue entries.
 949  * @ha: HA context
 950  *
 951  * Beginning of request ring has initialization control block already built
 952  * by nvram config routine.
 953  *
 954  * Returns 0 on success.
 955  */
 956 static void
 957 qla2x00_init_response_q_entries(scsi_qla_host_t *ha)
 958 {
 959         uint16_t cnt;
 960         response_t *pkt;
 961
 962         pkt = ha->response_ring_ptr;
 963         for (cnt = 0; cnt < ha->response_q_length; cnt++) {
 964                 pkt->signature = RESPONSE_PROCESSED;
 965                 pkt++;
 966         }
 967
 968 }
 969
 970 /**
 971  * qla2x00_update_fw_options() - Read and process firmware options.
 972  * @ha: HA context
 973  *
 974  * Returns 0 on success.
 975  */
 976 void
 977 qla2x00_update_fw_options(scsi_qla_host_t *ha)
 978 {
 979         uint16_t swing, emphasis, tx_sens, rx_sens;
 980
 981         memset(ha->fw_options, 0, sizeof(ha->fw_options));
 982         qla2x00_get_fw_options(ha, ha->fw_options);
 983
 984         if (IS_QLA2100(ha) || IS_QLA2200(ha))
 985                 return;
 986
 987         /* Serial Link options. */
 988         DEBUG3(printk("scsi(%ld): Serial link options:\n",
 989             ha->host_no));
 990         DEBUG3(qla2x00_dump_buffer((uint8_t *)&ha->fw_seriallink_options,
 991             sizeof(ha->fw_seriallink_options)));
 992
 993         ha->fw_options[1] &= ~FO1_SET_EMPHASIS_SWING;
 994         if (ha->fw_seriallink_options[3] & BIT_2) {
 995                 ha->fw_options[1] |= FO1_SET_EMPHASIS_SWING;
 996
 997                 /*  1G settings */
 998                 swing = ha->fw_seriallink_options[2] & (BIT_2 | BIT_1 | BIT_0);
 999                 emphasis = (ha->fw_seriallink_options[2] &
1000                     (BIT_4 | BIT_3)) >> 3;
1001                 tx_sens = ha->fw_seriallink_options[0] &
1002                     (BIT_3 | BIT_2 | BIT_1 | BIT_0);
1003                 rx_sens = (ha->fw_seriallink_options[0] &
1004                     (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
1005                 ha->fw_options[10] = (emphasis << 14) | (swing << 8);
1006                 if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
1007                         if (rx_sens == 0x0)
1008                                 rx_sens = 0x3;
1009                         ha->fw_options[10] |= (tx_sens << 4) | rx_sens;
1010                 } else if (IS_QLA2322(ha) || IS_QLA6322(ha))
1011                         ha->fw_options[10] |= BIT_5 |
1012                             ((rx_sens & (BIT_1 | BIT_0)) << 2) |
1013                             (tx_sens & (BIT_1 | BIT_0));
1014
1015                 /*  2G settings */
1016                 swing = (ha->fw_seriallink_options[2] &
1017                     (BIT_7 | BIT_6 | BIT_5)) >> 5;
1018                 emphasis = ha->fw_seriallink_options[3] & (BIT_1 | BIT_0);
1019                 tx_sens = ha->fw_seriallink_options[1] &
1020                     (BIT_3 | BIT_2 | BIT_1 | BIT_0);
1021                 rx_sens = (ha->fw_seriallink_options[1] &
1022                     (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
1023                 ha->fw_options[11] = (emphasis << 14) | (swing << 8);
1024                 if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
1025                         if (rx_sens == 0x0)
1026                                 rx_sens = 0x3;
1027                         ha->fw_options[11] |= (tx_sens << 4) | rx_sens;
1028                 } else if (IS_QLA2322(ha) || IS_QLA6322(ha))
1029                         ha->fw_options[11] |= BIT_5 |
1030                             ((rx_sens & (BIT_1 | BIT_0)) << 2) |
1031                             (tx_sens & (BIT_1 | BIT_0));
1032         }
1033
1034         /* FCP2 options. */
1035         /*  Return command IOCBs without waiting for an ABTS to complete. */
1036         ha->fw_options[3] |= BIT_13;
1037
1038         /* LED scheme. */
1039         if (ha->flags.enable_led_scheme)
1040                 ha->fw_options[2] |= BIT_12;
1041
1042         /* Detect ISP6312. */
1043         if (IS_QLA6312(ha))
1044                 ha->fw_options[2] |= BIT_13;
1045
1046         /* Update firmware options. */
1047         qla2x00_set_fw_options(ha, ha->fw_options);
1048 }
1049
1050 void
1051 qla24xx_update_fw_options(scsi_qla_host_t *ha)
1052 {
1053         int rval;
1054
1055         /* Update Serial Link options. */
1056         if ((le16_to_cpu(ha->fw_seriallink_options24[0]) & BIT_0) == 0)
1057                 return;
1058
1059         rval = qla2x00_set_serdes_params(ha,
1060             le16_to_cpu(ha->fw_seriallink_options24[1]),
1061             le16_to_cpu(ha->fw_seriallink_options24[2]),
1062             le16_to_cpu(ha->fw_seriallink_options24[3]));
1063         if (rval != QLA_SUCCESS) {
1064                 qla_printk(KERN_WARNING, ha,
1065                     "Unable to update Serial Link options (%x).\n", rval);
1066         }
1067 }
1068
1069 void
1070 qla2x00_config_rings(struct scsi_qla_host *ha)
1071 {
1072         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1073
1074         /* Setup ring parameters in initialization control block. */
1075         ha->init_cb->request_q_outpointer = __constant_cpu_to_le16(0);
1076         ha->init_cb->response_q_inpointer = __constant_cpu_to_le16(0);
1077         ha->init_cb->request_q_length = cpu_to_le16(ha->request_q_length);
1078         ha->init_cb->response_q_length = cpu_to_le16(ha->response_q_length);
1079         ha->init_cb->request_q_address[0] = cpu_to_le32(LSD(ha->request_dma));
1080         ha->init_cb->request_q_address[1] = cpu_to_le32(MSD(ha->request_dma));
1081         ha->init_cb->response_q_address[0] = cpu_to_le32(LSD(ha->response_dma));
1082         ha->init_cb->response_q_address[1] = cpu_to_le32(MSD(ha->response_dma));
1083
1084         WRT_REG_WORD(ISP_REQ_Q_IN(ha, reg), 0);
1085         WRT_REG_WORD(ISP_REQ_Q_OUT(ha, reg), 0);
1086         WRT_REG_WORD(ISP_RSP_Q_IN(ha, reg), 0);
1087         WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), 0);
1088         RD_REG_WORD(ISP_RSP_Q_OUT(ha, reg));            /* PCI Posting. */
1089 }
1090
1091 void
1092 qla24xx_config_rings(struct scsi_qla_host *ha)
1093 {
1094         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1095         struct init_cb_24xx *icb;
1096
1097         /* Setup ring parameters in initialization control block. */
1098         icb = (struct init_cb_24xx *)ha->init_cb;
1099         icb->request_q_outpointer = __constant_cpu_to_le16(0);
1100         icb->response_q_inpointer = __constant_cpu_to_le16(0);
1101         icb->request_q_length = cpu_to_le16(ha->request_q_length);
1102         icb->response_q_length = cpu_to_le16(ha->response_q_length);
1103         icb->request_q_address[0] = cpu_to_le32(LSD(ha->request_dma));
1104         icb->request_q_address[1] = cpu_to_le32(MSD(ha->request_dma));
1105         icb->response_q_address[0] = cpu_to_le32(LSD(ha->response_dma));
1106         icb->response_q_address[1] = cpu_to_le32(MSD(ha->response_dma));
1107
1108         WRT_REG_DWORD(&reg->req_q_in, 0);
1109         WRT_REG_DWORD(&reg->req_q_out, 0);
1110         WRT_REG_DWORD(&reg->rsp_q_in, 0);
1111         WRT_REG_DWORD(&reg->rsp_q_out, 0);
1112         RD_REG_DWORD(&reg->rsp_q_out);
1113 }
1114
1115 /**
1116  * qla2x00_init_rings() - Initializes firmware.
1117  * @ha: HA context
1118  *
1119  * Beginning of request ring has initialization control block already built
1120  * by nvram config routine.
1121  *
1122  * Returns 0 on success.
1123  */
1124 static int
1125 qla2x00_init_rings(scsi_qla_host_t *ha)
1126 {
1127         int     rval;
1128         unsigned long flags = 0;
1129         int cnt;
1130         struct mid_init_cb_24xx *mid_init_cb =
1131             (struct mid_init_cb_24xx *) ha->init_cb;
1132
1133         spin_lock_irqsave(&ha->hardware_lock, flags);
1134
1135         /* Clear outstanding commands array. */
1136         for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++)
1137                 ha->outstanding_cmds[cnt] = NULL;
1138
1139         ha->current_outstanding_cmd = 0;
1140
1141         /* Clear RSCN queue. */
1142         ha->rscn_in_ptr = 0;
1143         ha->rscn_out_ptr = 0;
1144
1145         /* Initialize firmware. */
1146         ha->request_ring_ptr  = ha->request_ring;
1147         ha->req_ring_index    = 0;
1148         ha->req_q_cnt         = ha->request_q_length;
1149         ha->response_ring_ptr = ha->response_ring;
1150         ha->rsp_ring_index    = 0;
1151
1152         /* Initialize response queue entries */
1153         qla2x00_init_response_q_entries(ha);
1154
1155         ha->isp_ops->config_rings(ha);
1156
1157         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1158
1159         /* Update any ISP specific firmware options before initialization. */
1160         ha->isp_ops->update_fw_options(ha);
1161
1162         DEBUG(printk("scsi(%ld): Issue init firmware.\n", ha->host_no));
1163
1164         mid_init_cb->count = cpu_to_le16(ha->max_npiv_vports);
1165         mid_init_cb->options = __constant_cpu_to_le16(BIT_1);
1166
1167         rval = qla2x00_init_firmware(ha, ha->init_cb_size);
1168         if (rval) {
1169                 DEBUG2_3(printk("scsi(%ld): Init firmware **** FAILED ****.\n",
1170                     ha->host_no));
1171         } else {
1172                 DEBUG3(printk("scsi(%ld): Init firmware -- success.\n",
1173                     ha->host_no));
1174         }
1175
1176         return (rval);
1177 }
1178
1179 /**
1180  * qla2x00_fw_ready() - Waits for firmware ready.
1181  * @ha: HA context
1182  *
1183  * Returns 0 on success.
1184  */
1185 static int
1186 qla2x00_fw_ready(scsi_qla_host_t *ha)
1187 {
1188         int             rval;
1189         unsigned long   wtime, mtime;
1190         uint16_t        min_wait;       /* Minimum wait time if loop is down */
1191         uint16_t        wait_time;      /* Wait time if loop is coming ready */
1192         uint16_t        fw_state;
1193
1194         rval = QLA_SUCCESS;
1195
1196         /* 20 seconds for loop down. */
1197         min_wait = 20;
1198
1199         /*
1200          * Firmware should take at most one RATOV to login, plus 5 seconds for
1201          * our own processing.
1202          */
1203         if ((wait_time = (ha->retry_count*ha->login_timeout) + 5) < min_wait) {
1204                 wait_time = min_wait;
1205         }
1206
1207         /* Min wait time if loop down */
1208         mtime = jiffies + (min_wait * HZ);
1209
1210         /* wait time before firmware ready */
1211         wtime = jiffies + (wait_time * HZ);
1212
1213         /* Wait for ISP to finish LIP */
1214         if (!ha->flags.init_done)
1215                 qla_printk(KERN_INFO, ha, "Waiting for LIP to complete...\n");
1216
1217         DEBUG3(printk("scsi(%ld): Waiting for LIP to complete...\n",
1218             ha->host_no));
1219
1220         do {
1221                 rval = qla2x00_get_firmware_state(ha, &fw_state);
1222                 if (rval == QLA_SUCCESS) {
1223                         if (fw_state < FSTATE_LOSS_OF_SYNC) {
1224                                 ha->device_flags &= ~DFLG_NO_CABLE;
1225                         }
1226                         if (fw_state == FSTATE_READY) {
1227                                 DEBUG(printk("scsi(%ld): F/W Ready - OK \n",
1228                                     ha->host_no));
1229
1230                                 qla2x00_get_retry_cnt(ha, &ha->retry_count,
1231                                     &ha->login_timeout, &ha->r_a_tov);
1232
1233                                 rval = QLA_SUCCESS;
1234                                 break;
1235                         }
1236
1237                         rval = QLA_FUNCTION_FAILED;
1238
1239                         if (atomic_read(&ha->loop_down_timer) &&
1240                             fw_state != FSTATE_READY) {
1241                                 /* Loop down. Timeout on min_wait for states
1242                                  * other than Wait for Login.
1243                                  */
1244                                 if (time_after_eq(jiffies, mtime)) {
1245                                         qla_printk(KERN_INFO, ha,
1246                                             "Cable is unplugged...\n");
1247
1248                                         ha->device_flags |= DFLG_NO_CABLE;
1249                                         break;
1250                                 }
1251                         }
1252                 } else {
1253                         /* Mailbox cmd failed. Timeout on min_wait. */
1254                         if (time_after_eq(jiffies, mtime))
1255                                 break;
1256                 }
1257
1258                 if (time_after_eq(jiffies, wtime))
1259                         break;
1260
1261                 /* Delay for a while */
1262                 msleep(500);
1263
1264                 DEBUG3(printk("scsi(%ld): fw_state=%x curr time=%lx.\n",
1265                     ha->host_no, fw_state, jiffies));
1266         } while (1);
1267
1268         DEBUG(printk("scsi(%ld): fw_state=%x curr time=%lx.\n",
1269             ha->host_no, fw_state, jiffies));
1270
1271         if (rval) {
1272                 DEBUG2_3(printk("scsi(%ld): Firmware ready **** FAILED ****.\n",
1273                     ha->host_no));
1274         }
1275
1276         return (rval);
1277 }
1278
1279 /*
1280 *  qla2x00_configure_hba
1281 *      Setup adapter context.
1282 *
1283 * Input:
1284 *      ha = adapter state pointer.
1285 *
1286 * Returns:
1287 *      0 = success
1288 *
1289 * Context:
1290 *      Kernel context.
1291 */
1292 static int
1293 qla2x00_configure_hba(scsi_qla_host_t *ha)
1294 {
1295         int       rval;
1296         uint16_t      loop_id;
1297         uint16_t      topo;
1298         uint16_t      sw_cap;
1299         uint8_t       al_pa;
1300         uint8_t       area;
1301         uint8_t       domain;
1302         char            connect_type[22];
1303
1304         /* Get host addresses. */
1305         rval = qla2x00_get_adapter_id(ha,
1306             &loop_id, &al_pa, &area, &domain, &topo, &sw_cap);
1307         if (rval != QLA_SUCCESS) {
1308                 if (LOOP_TRANSITION(ha) || atomic_read(&ha->loop_down_timer) ||
1309                     (rval == QLA_COMMAND_ERROR && loop_id == 0x7)) {
1310                         DEBUG2(printk("%s(%ld) Loop is in a transition state\n",
1311                             __func__, ha->host_no));
1312                 } else {
1313                         qla_printk(KERN_WARNING, ha,
1314                             "ERROR -- Unable to get host loop ID.\n");
1315                         set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
1316                 }
1317                 return (rval);
1318         }
1319
1320         if (topo == 4) {
1321                 qla_printk(KERN_INFO, ha,
1322                         "Cannot get topology - retrying.\n");
1323                 return (QLA_FUNCTION_FAILED);
1324         }
1325
1326         ha->loop_id = loop_id;
1327
1328         /* initialize */
1329         ha->min_external_loopid = SNS_FIRST_LOOP_ID;
1330         ha->operating_mode = LOOP;
1331         ha->switch_cap = 0;
1332
1333         switch (topo) {
1334         case 0:
1335                 DEBUG3(printk("scsi(%ld): HBA in NL topology.\n",
1336                     ha->host_no));
1337                 ha->current_topology = ISP_CFG_NL;
1338                 strcpy(connect_type, "(Loop)");
1339                 break;
1340
1341         case 1:
1342                 DEBUG3(printk("scsi(%ld): HBA in FL topology.\n",
1343                     ha->host_no));
1344                 ha->switch_cap = sw_cap;
1345                 ha->current_topology = ISP_CFG_FL;
1346                 strcpy(connect_type, "(FL_Port)");
1347                 break;
1348
1349         case 2:
1350                 DEBUG3(printk("scsi(%ld): HBA in N P2P topology.\n",
1351                     ha->host_no));
1352                 ha->operating_mode = P2P;
1353                 ha->current_topology = ISP_CFG_N;
1354                 strcpy(connect_type, "(N_Port-to-N_Port)");
1355                 break;
1356
1357         case 3:
1358                 DEBUG3(printk("scsi(%ld): HBA in F P2P topology.\n",
1359                     ha->host_no));
1360                 ha->switch_cap = sw_cap;
1361                 ha->operating_mode = P2P;
1362                 ha->current_topology = ISP_CFG_F;
1363                 strcpy(connect_type, "(F_Port)");
1364                 break;
1365
1366         default:
1367                 DEBUG3(printk("scsi(%ld): HBA in unknown topology %x. "
1368                     "Using NL.\n",
1369                     ha->host_no, topo));
1370                 ha->current_topology = ISP_CFG_NL;
1371                 strcpy(connect_type, "(Loop)");
1372                 break;
1373         }
1374
1375         /* Save Host port and loop ID. */
1376         /* byte order - Big Endian */
1377         ha->d_id.b.domain = domain;
1378         ha->d_id.b.area = area;
1379         ha->d_id.b.al_pa = al_pa;
1380
1381         if (!ha->flags.init_done)
1382                 qla_printk(KERN_INFO, ha,
1383                     "Topology - %s, Host Loop address 0x%x\n",
1384                     connect_type, ha->loop_id);
1385
1386         if (rval) {
1387                 DEBUG2_3(printk("scsi(%ld): FAILED.\n", ha->host_no));
1388         } else {
1389                 DEBUG3(printk("scsi(%ld): exiting normally.\n", ha->host_no));
1390         }
1391
1392         return(rval);
1393 }
1394
1395 static inline void
1396 qla2x00_set_model_info(scsi_qla_host_t *ha, uint8_t *model, size_t len, char *def)
1397 {
1398         char *st, *en;
1399         uint16_t index;
1400
1401         if (memcmp(model, BINZERO, len) != 0) {
1402                 strncpy(ha->model_number, model, len);
1403                 st = en = ha->model_number;
1404                 en += len - 1;
1405                 while (en > st) {
1406                         if (*en != 0x20 && *en != 0x00)
1407                                 break;
1408                         *en-- = '\0';
1409                 }
1410
1411                 index = (ha->pdev->subsystem_device & 0xff);
1412                 if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_QLOGIC &&
1413                     index < QLA_MODEL_NAMES)
1414                         ha->model_desc = qla2x00_model_name[index * 2 + 1];
1415         } else {
1416                 index = (ha->pdev->subsystem_device & 0xff);
1417                 if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_QLOGIC &&
1418                     index < QLA_MODEL_NAMES) {
1419                         strcpy(ha->model_number,
1420                             qla2x00_model_name[index * 2]);
1421                         ha->model_desc = qla2x00_model_name[index * 2 + 1];
1422                 } else {
1423                         strcpy(ha->model_number, def);
1424                 }
1425         }
1426 }
1427
1428 /* On sparc systems, obtain port and node WWN from firmware
1429  * properties.
1430  */
1431 static void qla2xxx_nvram_wwn_from_ofw(scsi_qla_host_t *ha, nvram_t *nv)
1432 {
1433 #ifdef CONFIG_SPARC
1434         struct pci_dev *pdev = ha->pdev;
1435         struct device_node *dp = pci_device_to_OF_node(pdev);
1436         const u8 *val;
1437         int len;
1438
1439         val = of_get_property(dp, "port-wwn", &len);
1440         if (val && len >= WWN_SIZE)
1441                 memcpy(nv->port_name, val, WWN_SIZE);
1442
1443         val = of_get_property(dp, "node-wwn", &len);
1444         if (val && len >= WWN_SIZE)
1445                 memcpy(nv->node_name, val, WWN_SIZE);
1446 #endif
1447 }
1448
1449 /*
1450 * NVRAM configuration for ISP 2xxx
1451 *
1452 * Input:
1453 *      ha                = adapter block pointer.
1454 *
1455 * Output:
1456 *      initialization control block in response_ring
1457 *      host adapters parameters in host adapter block
1458 *
1459 * Returns:
1460 *      0 = success.
1461 */
1462 int
1463 qla2x00_nvram_config(scsi_qla_host_t *ha)
1464 {
1465         int             rval;
1466         uint8_t         chksum = 0;
1467         uint16_t        cnt;
1468         uint8_t         *dptr1, *dptr2;
1469         init_cb_t       *icb = ha->init_cb;
1470         nvram_t         *nv = ha->nvram;
1471         uint8_t         *ptr = ha->nvram;
1472         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1473
1474         rval = QLA_SUCCESS;
1475
1476         /* Determine NVRAM starting address. */
1477         ha->nvram_size = sizeof(nvram_t);
1478         ha->nvram_base = 0;
1479         if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA2300(ha))
1480                 if ((RD_REG_WORD(&reg->ctrl_status) >> 14) == 1)
1481                         ha->nvram_base = 0x80;
1482
1483         /* Get NVRAM data and calculate checksum. */
1484         ha->isp_ops->read_nvram(ha, ptr, ha->nvram_base, ha->nvram_size);
1485         for (cnt = 0, chksum = 0; cnt < ha->nvram_size; cnt++)
1486                 chksum += *ptr++;
1487
1488         DEBUG5(printk("scsi(%ld): Contents of NVRAM\n", ha->host_no));
1489         DEBUG5(qla2x00_dump_buffer((uint8_t *)nv, ha->nvram_size));
1490
1491         /* Bad NVRAM data, set defaults parameters. */
1492         if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' ||
1493             nv->id[2] != 'P' || nv->id[3] != ' ' || nv->nvram_version < 1) {
1494                 /* Reset NVRAM data. */
1495                 qla_printk(KERN_WARNING, ha, "Inconsistent NVRAM detected: "
1496                     "checksum=0x%x id=%c version=0x%x.\n", chksum, nv->id[0],
1497                     nv->nvram_version);
1498                 qla_printk(KERN_WARNING, ha, "Falling back to functioning (yet "
1499                     "invalid -- WWPN) defaults.\n");
1500
1501                 /*
1502                  * Set default initialization control block.
1503                  */
1504                 memset(nv, 0, ha->nvram_size);
1505                 nv->parameter_block_version = ICB_VERSION;
1506
1507                 if (IS_QLA23XX(ha)) {
1508                         nv->firmware_options[0] = BIT_2 | BIT_1;
1509                         nv->firmware_options[1] = BIT_7 | BIT_5;
1510                         nv->add_firmware_options[0] = BIT_5;
1511                         nv->add_firmware_options[1] = BIT_5 | BIT_4;
1512                         nv->frame_payload_size = __constant_cpu_to_le16(2048);
1513                         nv->special_options[1] = BIT_7;
1514                 } else if (IS_QLA2200(ha)) {
1515                         nv->firmware_options[0] = BIT_2 | BIT_1;
1516                         nv->firmware_options[1] = BIT_7 | BIT_5;
1517                         nv->add_firmware_options[0] = BIT_5;
1518                         nv->add_firmware_options[1] = BIT_5 | BIT_4;
1519                         nv->frame_payload_size = __constant_cpu_to_le16(1024);
1520                 } else if (IS_QLA2100(ha)) {
1521                         nv->firmware_options[0] = BIT_3 | BIT_1;
1522                         nv->firmware_options[1] = BIT_5;
1523                         nv->frame_payload_size = __constant_cpu_to_le16(1024);
1524                 }
1525
1526                 nv->max_iocb_allocation = __constant_cpu_to_le16(256);
1527                 nv->execution_throttle = __constant_cpu_to_le16(16);
1528                 nv->retry_count = 8;
1529                 nv->retry_delay = 1;
1530
1531                 nv->port_name[0] = 33;
1532                 nv->port_name[3] = 224;
1533                 nv->port_name[4] = 139;
1534
1535                 qla2xxx_nvram_wwn_from_ofw(ha, nv);
1536
1537                 nv->login_timeout = 4;
1538
1539                 /*
1540                  * Set default host adapter parameters
1541                  */
1542                 nv->host_p[1] = BIT_2;
1543                 nv->reset_delay = 5;
1544                 nv->port_down_retry_count = 8;
1545                 nv->max_luns_per_target = __constant_cpu_to_le16(8);
1546                 nv->link_down_timeout = 60;
1547
1548                 rval = 1;
1549         }
1550
1551 #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
1552         /*
1553          * The SN2 does not provide BIOS emulation which means you can't change
1554          * potentially bogus BIOS settings. Force the use of default settings
1555          * for link rate and frame size.  Hope that the rest of the settings
1556          * are valid.
1557          */
1558         if (ia64_platform_is("sn2")) {
1559                 nv->frame_payload_size = __constant_cpu_to_le16(2048);
1560                 if (IS_QLA23XX(ha))
1561                         nv->special_options[1] = BIT_7;
1562         }
1563 #endif
1564
1565         /* Reset Initialization control block */
1566         memset(icb, 0, ha->init_cb_size);
1567
1568         /*
1569          * Setup driver NVRAM options.
1570          */
1571         nv->firmware_options[0] |= (BIT_6 | BIT_1);
1572         nv->firmware_options[0] &= ~(BIT_5 | BIT_4);
1573         nv->firmware_options[1] |= (BIT_5 | BIT_0);
1574         nv->firmware_options[1] &= ~BIT_4;
1575
1576         if (IS_QLA23XX(ha)) {
1577                 nv->firmware_options[0] |= BIT_2;
1578                 nv->firmware_options[0] &= ~BIT_3;
1579                 nv->add_firmware_options[1] |= BIT_5 | BIT_4;
1580
1581                 if (IS_QLA2300(ha)) {
1582                         if (ha->fb_rev == FPM_2310) {
1583                                 strcpy(ha->model_number, "QLA2310");
1584                         } else {
1585                                 strcpy(ha->model_number, "QLA2300");
1586                         }
1587                 } else {
1588                         qla2x00_set_model_info(ha, nv->model_number,
1589                             sizeof(nv->model_number), "QLA23xx");
1590                 }
1591         } else if (IS_QLA2200(ha)) {
1592                 nv->firmware_options[0] |= BIT_2;
1593                 /*
1594                  * 'Point-to-point preferred, else loop' is not a safe
1595                  * connection mode setting.
1596                  */
1597                 if ((nv->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) ==
1598                     (BIT_5 | BIT_4)) {
1599                         /* Force 'loop preferred, else point-to-point'. */
1600                         nv->add_firmware_options[0] &= ~(BIT_6 | BIT_5 | BIT_4);
1601                         nv->add_firmware_options[0] |= BIT_5;
1602                 }
1603                 strcpy(ha->model_number, "QLA22xx");
1604         } else /*if (IS_QLA2100(ha))*/ {
1605                 strcpy(ha->model_number, "QLA2100");
1606         }
1607
1608         /*
1609          * Copy over NVRAM RISC parameter block to initialization control block.
1610          */
1611         dptr1 = (uint8_t *)icb;
1612         dptr2 = (uint8_t *)&nv->parameter_block_version;
1613         cnt = (uint8_t *)&icb->request_q_outpointer - (uint8_t *)&icb->version;
1614         while (cnt--)
1615                 *dptr1++ = *dptr2++;
1616
1617         /* Copy 2nd half. */
1618         dptr1 = (uint8_t *)icb->add_firmware_options;
1619         cnt = (uint8_t *)icb->reserved_3 - (uint8_t *)icb->add_firmware_options;
1620         while (cnt--)
1621                 *dptr1++ = *dptr2++;
1622
1623         /* Use alternate WWN? */
1624         if (nv->host_p[1] & BIT_7) {
1625                 memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
1626                 memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
1627         }
1628
1629         /* Prepare nodename */
1630         if ((icb->firmware_options[1] & BIT_6) == 0) {
1631                 /*
1632                  * Firmware will apply the following mask if the nodename was
1633                  * not provided.
1634                  */
1635                 memcpy(icb->node_name, icb->port_name, WWN_SIZE);
1636                 icb->node_name[0] &= 0xF0;
1637         }
1638
1639         /*
1640          * Set host adapter parameters.
1641          */
1642         if (nv->host_p[0] & BIT_7)
1643                 ql2xextended_error_logging = 1;
1644         ha->flags.disable_risc_code_load = ((nv->host_p[0] & BIT_4) ? 1 : 0);
1645         /* Always load RISC code on non ISP2[12]00 chips. */
1646         if (!IS_QLA2100(ha) && !IS_QLA2200(ha))
1647                 ha->flags.disable_risc_code_load = 0;
1648         ha->flags.enable_lip_reset = ((nv->host_p[1] & BIT_1) ? 1 : 0);
1649         ha->flags.enable_lip_full_login = ((nv->host_p[1] & BIT_2) ? 1 : 0);
1650         ha->flags.enable_target_reset = ((nv->host_p[1] & BIT_3) ? 1 : 0);
1651         ha->flags.enable_led_scheme = (nv->special_options[1] & BIT_4) ? 1 : 0;
1652         ha->flags.disable_serdes = 0;
1653
1654         ha->operating_mode =
1655             (icb->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) >> 4;
1656
1657         memcpy(ha->fw_seriallink_options, nv->seriallink_options,
1658             sizeof(ha->fw_seriallink_options));
1659
1660         /* save HBA serial number */
1661         ha->serial0 = icb->port_name[5];
1662         ha->serial1 = icb->port_name[6];
1663         ha->serial2 = icb->port_name[7];
1664         ha->node_name = icb->node_name;
1665         ha->port_name = icb->port_name;
1666
1667         icb->execution_throttle = __constant_cpu_to_le16(0xFFFF);
1668
1669         ha->retry_count = nv->retry_count;
1670
1671         /* Set minimum login_timeout to 4 seconds. */
1672         if (nv->login_timeout < ql2xlogintimeout)
1673                 nv->login_timeout = ql2xlogintimeout;
1674         if (nv->login_timeout < 4)
1675                 nv->login_timeout = 4;
1676         ha->login_timeout = nv->login_timeout;
1677         icb->login_timeout = nv->login_timeout;
1678
1679         /* Set minimum RATOV to 200 tenths of a second. */
1680         ha->r_a_tov = 200;
1681
1682         ha->loop_reset_delay = nv->reset_delay;
1683
1684         /* Link Down Timeout = 0:
1685          *
1686          *      When Port Down timer expires we will start returning
1687          *      I/O's to OS with "DID_NO_CONNECT".
1688          *
1689          * Link Down Timeout != 0:
1690          *
1691          *       The driver waits for the link to come up after link down
1692          *       before returning I/Os to OS with "DID_NO_CONNECT".
1693          */
1694         if (nv->link_down_timeout == 0) {
1695                 ha->loop_down_abort_time =
1696                     (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
1697         } else {
1698                 ha->link_down_timeout =  nv->link_down_timeout;
1699                 ha->loop_down_abort_time =
1700                     (LOOP_DOWN_TIME - ha->link_down_timeout);
1701         }
1702
1703         /*
1704          * Need enough time to try and get the port back.
1705          */
1706         ha->port_down_retry_count = nv->port_down_retry_count;
1707         if (qlport_down_retry)
1708                 ha->port_down_retry_count = qlport_down_retry;
1709         /* Set login_retry_count */
1710         ha->login_retry_count  = nv->retry_count;
1711         if (ha->port_down_retry_count == nv->port_down_retry_count &&
1712             ha->port_down_retry_count > 3)
1713                 ha->login_retry_count = ha->port_down_retry_count;
1714         else if (ha->port_down_retry_count > (int)ha->login_retry_count)
1715                 ha->login_retry_count = ha->port_down_retry_count;
1716         if (ql2xloginretrycount)
1717                 ha->login_retry_count = ql2xloginretrycount;
1718
1719         icb->lun_enables = __constant_cpu_to_le16(0);
1720         icb->command_resource_count = 0;
1721         icb->immediate_notify_resource_count = 0;
1722         icb->timeout = __constant_cpu_to_le16(0);
1723
1724         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
1725                 /* Enable RIO */
1726                 icb->firmware_options[0] &= ~BIT_3;
1727                 icb->add_firmware_options[0] &=
1728                     ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
1729                 icb->add_firmware_options[0] |= BIT_2;
1730                 icb->response_accumulation_timer = 3;
1731                 icb->interrupt_delay_timer = 5;
1732
1733                 ha->flags.process_response_queue = 1;
1734         } else {
1735                 /* Enable ZIO. */
1736                 if (!ha->flags.init_done) {
1737                         ha->zio_mode = icb->add_firmware_options[0] &
1738                             (BIT_3 | BIT_2 | BIT_1 | BIT_0);
1739                         ha->zio_timer = icb->interrupt_delay_timer ?
1740                             icb->interrupt_delay_timer: 2;
1741                 }
1742                 icb->add_firmware_options[0] &=
1743                     ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
1744                 ha->flags.process_response_queue = 0;
1745                 if (ha->zio_mode != QLA_ZIO_DISABLED) {
1746                         ha->zio_mode = QLA_ZIO_MODE_6;
1747
1748                         DEBUG2(printk("scsi(%ld): ZIO mode %d enabled; timer "
1749                             "delay (%d us).\n", ha->host_no, ha->zio_mode,
1750                             ha->zio_timer * 100));
1751                         qla_printk(KERN_INFO, ha,
1752                             "ZIO mode %d enabled; timer delay (%d us).\n",
1753                             ha->zio_mode, ha->zio_timer * 100);
1754
1755                         icb->add_firmware_options[0] |= (uint8_t)ha->zio_mode;
1756                         icb->interrupt_delay_timer = (uint8_t)ha->zio_timer;
1757                         ha->flags.process_response_queue = 1;
1758                 }
1759         }
1760
1761         if (rval) {
1762                 DEBUG2_3(printk(KERN_WARNING
1763                     "scsi(%ld): NVRAM configuration failed!\n", ha->host_no));
1764         }
1765         return (rval);
1766 }
1767
1768 static void
1769 qla2x00_rport_del(void *data)
1770 {
1771         fc_port_t *fcport = data;
1772         struct fc_rport *rport;
1773         unsigned long flags;
1774
1775         spin_lock_irqsave(&fcport->rport_lock, flags);
1776         rport = fcport->drport;
1777         fcport->drport = NULL;
1778         spin_unlock_irqrestore(&fcport->rport_lock, flags);
1779         if (rport)
1780                 fc_remote_port_delete(rport);
1781 }
1782
1783 /**
1784  * qla2x00_alloc_fcport() - Allocate a generic fcport.
1785  * @ha: HA context
1786  * @flags: allocation flags
1787  *
1788  * Returns a pointer to the allocated fcport, or NULL, if none available.
1789  */
1790 static fc_port_t *
1791 qla2x00_alloc_fcport(scsi_qla_host_t *ha, gfp_t flags)
1792 {
1793         fc_port_t *fcport;
1794
1795         fcport = kzalloc(sizeof(fc_port_t), flags);
1796         if (!fcport)
1797                 return NULL;
1798
1799         /* Setup fcport template structure. */
1800         fcport->ha = ha;
1801         fcport->vp_idx = ha->vp_idx;
1802         fcport->port_type = FCT_UNKNOWN;
1803         fcport->loop_id = FC_NO_LOOP_ID;
1804         atomic_set(&fcport->state, FCS_UNCONFIGURED);
1805         fcport->flags = FCF_RLC_SUPPORT;
1806         fcport->supported_classes = FC_COS_UNSPECIFIED;
1807         spin_lock_init(&fcport->rport_lock);
1808
1809         return fcport;
1810 }
1811
1812 /*
1813  * qla2x00_configure_loop
1814  *      Updates Fibre Channel Device Database with what is actually on loop.
1815  *
1816  * Input:
1817  *      ha                = adapter block pointer.
1818  *
1819  * Returns:
1820  *      0 = success.
1821  *      1 = error.
1822  *      2 = database was full and device was not configured.
1823  */
1824 static int
1825 qla2x00_configure_loop(scsi_qla_host_t *ha)
1826 {
1827         int  rval;
1828         unsigned long flags, save_flags;
1829
1830         rval = QLA_SUCCESS;
1831
1832         /* Get Initiator ID */
1833         if (test_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags)) {
1834                 rval = qla2x00_configure_hba(ha);
1835                 if (rval != QLA_SUCCESS) {
1836                         DEBUG(printk("scsi(%ld): Unable to configure HBA.\n",
1837                             ha->host_no));
1838                         return (rval);
1839                 }
1840         }
1841
1842         save_flags = flags = ha->dpc_flags;
1843         DEBUG(printk("scsi(%ld): Configure loop -- dpc flags =0x%lx\n",
1844             ha->host_no, flags));
1845
1846         /*
1847          * If we have both an RSCN and PORT UPDATE pending then handle them
1848          * both at the same time.
1849          */
1850         clear_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1851         clear_bit(RSCN_UPDATE, &ha->dpc_flags);
1852
1853         /* Determine what we need to do */
1854         if (ha->current_topology == ISP_CFG_FL &&
1855             (test_bit(LOCAL_LOOP_UPDATE, &flags))) {
1856
1857                 ha->flags.rscn_queue_overflow = 1;
1858                 set_bit(RSCN_UPDATE, &flags);
1859
1860         } else if (ha->current_topology == ISP_CFG_F &&
1861             (test_bit(LOCAL_LOOP_UPDATE, &flags))) {
1862
1863                 ha->flags.rscn_queue_overflow = 1;
1864                 set_bit(RSCN_UPDATE, &flags);
1865                 clear_bit(LOCAL_LOOP_UPDATE, &flags);
1866
1867         } else if (ha->current_topology == ISP_CFG_N) {
1868                 clear_bit(RSCN_UPDATE, &flags);
1869
1870         } else if (!ha->flags.online ||
1871             (test_bit(ABORT_ISP_ACTIVE, &flags))) {
1872
1873                 ha->flags.rscn_queue_overflow = 1;
1874                 set_bit(RSCN_UPDATE, &flags);
1875                 set_bit(LOCAL_LOOP_UPDATE, &flags);
1876         }
1877
1878         if (test_bit(LOCAL_LOOP_UPDATE, &flags)) {
1879                 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
1880                         rval = QLA_FUNCTION_FAILED;
1881                 } else {
1882                         rval = qla2x00_configure_local_loop(ha);
1883                 }
1884         }
1885
1886         if (rval == QLA_SUCCESS && test_bit(RSCN_UPDATE, &flags)) {
1887                 if (LOOP_TRANSITION(ha)) {
1888                         rval = QLA_FUNCTION_FAILED;
1889                 } else {
1890                         rval = qla2x00_configure_fabric(ha);
1891                 }
1892         }
1893
1894         if (rval == QLA_SUCCESS) {
1895                 if (atomic_read(&ha->loop_down_timer) ||
1896                     test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
1897                         rval = QLA_FUNCTION_FAILED;
1898                 } else {
1899                         atomic_set(&ha->loop_state, LOOP_READY);
1900
1901                         DEBUG(printk("scsi(%ld): LOOP READY\n", ha->host_no));
1902                 }
1903         }
1904
1905         if (rval) {
1906                 DEBUG2_3(printk("%s(%ld): *** FAILED ***\n",
1907                     __func__, ha->host_no));
1908         } else {
1909                 DEBUG3(printk("%s: exiting normally\n", __func__));
1910         }
1911
1912         /* Restore state if a resync event occured during processing */
1913         if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
1914                 if (test_bit(LOCAL_LOOP_UPDATE, &save_flags))
1915                         set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1916                 if (test_bit(RSCN_UPDATE, &save_flags))
1917                         set_bit(RSCN_UPDATE, &ha->dpc_flags);
1918         }
1919
1920         return (rval);
1921 }
1922
1923
1924
1925 /*
1926  * qla2x00_configure_local_loop
1927  *      Updates Fibre Channel Device Database with local loop devices.
1928  *
1929  * Input:
1930  *      ha = adapter block pointer.
1931  *
1932  * Returns:
1933  *      0 = success.
1934  */
1935 static int
1936 qla2x00_configure_local_loop(scsi_qla_host_t *ha)
1937 {
1938         int             rval, rval2;
1939         int             found_devs;
1940         int             found;
1941         fc_port_t       *fcport, *new_fcport;
1942
1943         uint16_t        index;
1944         uint16_t        entries;
1945         char            *id_iter;
1946         uint16_t        loop_id;
1947         uint8_t         domain, area, al_pa;
1948         scsi_qla_host_t *pha = to_qla_parent(ha);
1949
1950         found_devs = 0;
1951         new_fcport = NULL;
1952         entries = MAX_FIBRE_DEVICES;
1953
1954         DEBUG3(printk("scsi(%ld): Getting FCAL position map\n", ha->host_no));
1955         DEBUG3(qla2x00_get_fcal_position_map(ha, NULL));
1956
1957         /* Get list of logged in devices. */
1958         memset(ha->gid_list, 0, GID_LIST_SIZE);
1959         rval = qla2x00_get_id_list(ha, ha->gid_list, ha->gid_list_dma,
1960             &entries);
1961         if (rval != QLA_SUCCESS)
1962                 goto cleanup_allocation;
1963
1964         DEBUG3(printk("scsi(%ld): Entries in ID list (%d)\n",
1965             ha->host_no, entries));
1966         DEBUG3(qla2x00_dump_buffer((uint8_t *)ha->gid_list,
1967             entries * sizeof(struct gid_list_info)));
1968
1969         /* Allocate temporary fcport for any new fcports discovered. */
1970         new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
1971         if (new_fcport == NULL) {
1972                 rval = QLA_MEMORY_ALLOC_FAILED;
1973                 goto cleanup_allocation;
1974         }
1975         new_fcport->flags &= ~FCF_FABRIC_DEVICE;
1976
1977         /*
1978          * Mark local devices that were present with FCF_DEVICE_LOST for now.
1979          */
1980         list_for_each_entry(fcport, &pha->fcports, list) {
1981                 if (fcport->vp_idx != ha->vp_idx)
1982                         continue;
1983
1984                 if (atomic_read(&fcport->state) == FCS_ONLINE &&
1985                     fcport->port_type != FCT_BROADCAST &&
1986                     (fcport->flags & FCF_FABRIC_DEVICE) == 0) {
1987
1988                         DEBUG(printk("scsi(%ld): Marking port lost, "
1989                             "loop_id=0x%04x\n",
1990                             ha->host_no, fcport->loop_id));
1991
1992                         atomic_set(&fcport->state, FCS_DEVICE_LOST);
1993                         fcport->flags &= ~FCF_FARP_DONE;
1994                 }
1995         }
1996
1997         /* Add devices to port list. */
1998         id_iter = (char *)ha->gid_list;
1999         for (index = 0; index < entries; index++) {
2000                 domain = ((struct gid_list_info *)id_iter)->domain;
2001                 area = ((struct gid_list_info *)id_iter)->area;
2002                 al_pa = ((struct gid_list_info *)id_iter)->al_pa;
2003                 if (IS_QLA2100(ha) || IS_QLA2200(ha))
2004                         loop_id = (uint16_t)
2005                             ((struct gid_list_info *)id_iter)->loop_id_2100;
2006                 else
2007                         loop_id = le16_to_cpu(
2008                             ((struct gid_list_info *)id_iter)->loop_id);
2009                 id_iter += ha->gid_list_info_size;
2010
2011                 /* Bypass reserved domain fields. */
2012                 if ((domain & 0xf0) == 0xf0)
2013                         continue;
2014
2015                 /* Bypass if not same domain and area of adapter. */
2016                 if (area && domain &&
2017                     (area != ha->d_id.b.area || domain != ha->d_id.b.domain))
2018                         continue;
2019
2020                 /* Bypass invalid local loop ID. */
2021                 if (loop_id > LAST_LOCAL_LOOP_ID)
2022                         continue;
2023
2024                 /* Fill in member data. */
2025                 new_fcport->d_id.b.domain = domain;
2026                 new_fcport->d_id.b.area = area;
2027                 new_fcport->d_id.b.al_pa = al_pa;
2028                 new_fcport->loop_id = loop_id;
2029                 new_fcport->vp_idx = ha->vp_idx;
2030                 rval2 = qla2x00_get_port_database(ha, new_fcport, 0);
2031                 if (rval2 != QLA_SUCCESS) {
2032                         DEBUG2(printk("scsi(%ld): Failed to retrieve fcport "
2033                             "information -- get_port_database=%x, "
2034                             "loop_id=0x%04x\n",
2035                             ha->host_no, rval2, new_fcport->loop_id));
2036                         DEBUG2(printk("scsi(%ld): Scheduling resync...\n",
2037                             ha->host_no));
2038                         set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2039                         continue;
2040                 }
2041
2042                 /* Check for matching device in port list. */
2043                 found = 0;
2044                 fcport = NULL;
2045                 list_for_each_entry(fcport, &pha->fcports, list) {
2046                         if (fcport->vp_idx != ha->vp_idx)
2047                                 continue;
2048
2049                         if (memcmp(new_fcport->port_name, fcport->port_name,
2050                             WWN_SIZE))
2051                                 continue;
2052
2053                         fcport->flags &= ~(FCF_FABRIC_DEVICE |
2054                             FCF_PERSISTENT_BOUND);
2055                         fcport->loop_id = new_fcport->loop_id;
2056                         fcport->port_type = new_fcport->port_type;
2057                         fcport->d_id.b24 = new_fcport->d_id.b24;
2058                         memcpy(fcport->node_name, new_fcport->node_name,
2059                             WWN_SIZE);
2060
2061                         found++;
2062                         break;
2063                 }
2064
2065                 if (!found) {
2066                         /* New device, add to fcports list. */
2067                         new_fcport->flags &= ~FCF_PERSISTENT_BOUND;
2068                         if (ha->parent) {
2069                                 new_fcport->ha = ha;
2070                                 new_fcport->vp_idx = ha->vp_idx;
2071                                 list_add_tail(&new_fcport->vp_fcport,
2072                                     &ha->vp_fcports);
2073                         }
2074                         list_add_tail(&new_fcport->list, &pha->fcports);
2075
2076                         /* Allocate a new replacement fcport. */
2077                         fcport = new_fcport;
2078                         new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
2079                         if (new_fcport == NULL) {
2080                                 rval = QLA_MEMORY_ALLOC_FAILED;
2081                                 goto cleanup_allocation;
2082                         }
2083                         new_fcport->flags &= ~FCF_FABRIC_DEVICE;
2084                 }
2085
2086                 /* Base iIDMA settings on HBA port speed. */
2087                 fcport->fp_speed = ha->link_data_rate;
2088
2089                 qla2x00_update_fcport(ha, fcport);
2090
2091                 found_devs++;
2092         }
2093
2094 cleanup_allocation:
2095         kfree(new_fcport);
2096
2097         if (rval != QLA_SUCCESS) {
2098                 DEBUG2(printk("scsi(%ld): Configure local loop error exit: "
2099                     "rval=%x\n", ha->host_no, rval));
2100         }
2101
2102         if (found_devs) {
2103                 ha->device_flags |= DFLG_LOCAL_DEVICES;
2104                 ha->device_flags &= ~DFLG_RETRY_LOCAL_DEVICES;
2105         }
2106
2107         return (rval);
2108 }
2109
2110 static void
2111 qla2x00_probe_for_all_luns(scsi_qla_host_t *ha)
2112 {
2113         fc_port_t       *fcport;
2114
2115         qla2x00_mark_all_devices_lost(ha, 0);
2116         list_for_each_entry(fcport, &ha->fcports, list) {
2117                 if (fcport->port_type != FCT_TARGET)
2118                         continue;
2119
2120                 qla2x00_update_fcport(ha, fcport);
2121         }
2122 }
2123
2124 static void
2125 qla2x00_iidma_fcport(scsi_qla_host_t *ha, fc_port_t *fcport)
2126 {
2127 #define LS_UNKNOWN      2
2128         static char *link_speeds[5] = { "1", "2", "?", "4", "8" };
2129         int rval;
2130         uint16_t mb[6];
2131
2132         if (!IS_IIDMA_CAPABLE(ha))
2133                 return;
2134
2135         if (fcport->fp_speed == PORT_SPEED_UNKNOWN ||
2136             fcport->fp_speed > ha->link_data_rate)
2137                 return;
2138
2139         rval = qla2x00_set_idma_speed(ha, fcport->loop_id, fcport->fp_speed,
2140             mb);
2141         if (rval != QLA_SUCCESS) {
2142                 DEBUG2(printk("scsi(%ld): Unable to adjust iIDMA "
2143                     "%02x%02x%02x%02x%02x%02x%02x%02x -- %04x %x %04x %04x.\n",
2144                     ha->host_no, fcport->port_name[0], fcport->port_name[1],
2145                     fcport->port_name[2], fcport->port_name[3],
2146                     fcport->port_name[4], fcport->port_name[5],
2147                     fcport->port_name[6], fcport->port_name[7], rval,
2148                     fcport->fp_speed, mb[0], mb[1]));
2149         } else {
2150                 DEBUG2(qla_printk(KERN_INFO, ha,
2151                     "iIDMA adjusted to %s GB/s on "
2152                     "%02x%02x%02x%02x%02x%02x%02x%02x.\n",
2153                     link_speeds[fcport->fp_speed], fcport->port_name[0],
2154                     fcport->port_name[1], fcport->port_name[2],
2155                     fcport->port_name[3], fcport->port_name[4],
2156                     fcport->port_name[5], fcport->port_name[6],
2157                     fcport->port_name[7]));
2158         }
2159 }
2160
2161 static void
2162 qla2x00_reg_remote_port(scsi_qla_host_t *ha, fc_port_t *fcport)
2163 {
2164         struct fc_rport_identifiers rport_ids;
2165         struct fc_rport *rport;
2166         unsigned long flags;
2167
2168         if (fcport->drport)
2169                 qla2x00_rport_del(fcport);
2170         if (fcport->rport)
2171                 return;
2172
2173         rport_ids.node_name = wwn_to_u64(fcport->node_name);
2174         rport_ids.port_name = wwn_to_u64(fcport->port_name);
2175         rport_ids.port_id = fcport->d_id.b.domain << 16 |
2176             fcport->d_id.b.area << 8 | fcport->d_id.b.al_pa;
2177         rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
2178         rport = fc_remote_port_add(ha->host, 0, &rport_ids);
2179         if (!rport) {
2180                 qla_printk(KERN_WARNING, ha,
2181                     "Unable to allocate fc remote port!\n");
2182                 return;
2183         }
2184         spin_lock_irqsave(&fcport->rport_lock, flags);
2185         fcport->rport = rport;
2186         *((fc_port_t **)rport->dd_data) = fcport;
2187         spin_unlock_irqrestore(&fcport->rport_lock, flags);
2188
2189         rport->supported_classes = fcport->supported_classes;
2190
2191         rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
2192         if (fcport->port_type == FCT_INITIATOR)
2193                 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
2194         if (fcport->port_type == FCT_TARGET)
2195                 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
2196         fc_remote_port_rolechg(rport, rport_ids.roles);
2197
2198         if (rport->scsi_target_id != -1 &&
2199             rport->scsi_target_id < ha->host->max_id)
2200                 fcport->os_target_id = rport->scsi_target_id;
2201 }
2202
2203 /*
2204  * qla2x00_update_fcport
2205  *      Updates device on list.
2206  *
2207  * Input:
2208  *      ha = adapter block pointer.
2209  *      fcport = port structure pointer.
2210  *
2211  * Return:
2212  *      0  - Success
2213  *  BIT_0 - error
2214  *
2215  * Context:
2216  *      Kernel context.
2217  */
2218 void
2219 qla2x00_update_fcport(scsi_qla_host_t *ha, fc_port_t *fcport)
2220 {
2221         scsi_qla_host_t *pha = to_qla_parent(ha);
2222
2223         fcport->ha = ha;
2224         fcport->login_retry = 0;
2225         fcport->port_login_retry_count = pha->port_down_retry_count *
2226             PORT_RETRY_TIME;
2227         atomic_set(&fcport->port_down_timer, pha->port_down_retry_count *
2228             PORT_RETRY_TIME);
2229         fcport->flags &= ~FCF_LOGIN_NEEDED;
2230
2231         qla2x00_iidma_fcport(ha, fcport);
2232
2233         atomic_set(&fcport->state, FCS_ONLINE);
2234
2235         qla2x00_reg_remote_port(ha, fcport);
2236 }
2237
2238 /*
2239  * qla2x00_configure_fabric
2240  *      Setup SNS devices with loop ID's.
2241  *
2242  * Input:
2243  *      ha = adapter block pointer.
2244  *
2245  * Returns:
2246  *      0 = success.
2247  *      BIT_0 = error
2248  */
2249 static int
2250 qla2x00_configure_fabric(scsi_qla_host_t *ha)
2251 {
2252         int     rval, rval2;
2253         fc_port_t       *fcport, *fcptemp;
2254         uint16_t        next_loopid;
2255         uint16_t        mb[MAILBOX_REGISTER_COUNT];
2256         uint16_t        loop_id;
2257         LIST_HEAD(new_fcports);
2258         scsi_qla_host_t *pha = to_qla_parent(ha);
2259
2260         /* If FL port exists, then SNS is present */
2261         if (IS_FWI2_CAPABLE(ha))
2262                 loop_id = NPH_F_PORT;
2263         else
2264                 loop_id = SNS_FL_PORT;
2265         rval = qla2x00_get_port_name(ha, loop_id, ha->fabric_node_name, 1);
2266         if (rval != QLA_SUCCESS) {
2267                 DEBUG2(printk("scsi(%ld): MBC_GET_PORT_NAME Failed, No FL "
2268                     "Port\n", ha->host_no));
2269
2270                 ha->device_flags &= ~SWITCH_FOUND;
2271                 return (QLA_SUCCESS);
2272         }
2273         ha->device_flags |= SWITCH_FOUND;
2274
2275         /* Mark devices that need re-synchronization. */
2276         rval2 = qla2x00_device_resync(ha);
2277         if (rval2 == QLA_RSCNS_HANDLED) {
2278                 /* No point doing the scan, just continue. */
2279                 return (QLA_SUCCESS);
2280         }
2281         do {
2282                 /* FDMI support. */
2283                 if (ql2xfdmienable &&
2284                     test_and_clear_bit(REGISTER_FDMI_NEEDED, &ha->dpc_flags))
2285                         qla2x00_fdmi_register(ha);
2286
2287                 /* Ensure we are logged into the SNS. */
2288                 if (IS_FWI2_CAPABLE(ha))
2289                         loop_id = NPH_SNS;
2290                 else
2291                         loop_id = SIMPLE_NAME_SERVER;
2292                 ha->isp_ops->fabric_login(ha, loop_id, 0xff, 0xff,
2293                     0xfc, mb, BIT_1 | BIT_0);
2294                 if (mb[0] != MBS_COMMAND_COMPLETE) {
2295                         DEBUG2(qla_printk(KERN_INFO, ha,
2296                             "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x "
2297                             "mb[2]=%x mb[6]=%x mb[7]=%x\n", loop_id,
2298                             mb[0], mb[1], mb[2], mb[6], mb[7]));
2299                         return (QLA_SUCCESS);
2300                 }
2301
2302                 if (test_and_clear_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags)) {
2303                         if (qla2x00_rft_id(ha)) {
2304                                 /* EMPTY */
2305                                 DEBUG2(printk("scsi(%ld): Register FC-4 "
2306                                     "TYPE failed.\n", ha->host_no));
2307                         }
2308                         if (qla2x00_rff_id(ha)) {
2309                                 /* EMPTY */
2310                                 DEBUG2(printk("scsi(%ld): Register FC-4 "
2311                                     "Features failed.\n", ha->host_no));
2312                         }
2313                         if (qla2x00_rnn_id(ha)) {
2314                                 /* EMPTY */
2315                                 DEBUG2(printk("scsi(%ld): Register Node Name "
2316                                     "failed.\n", ha->host_no));
2317                         } else if (qla2x00_rsnn_nn(ha)) {
2318                                 /* EMPTY */
2319                                 DEBUG2(printk("scsi(%ld): Register Symbolic "
2320                                     "Node Name failed.\n", ha->host_no));
2321                         }
2322                 }
2323
2324                 rval = qla2x00_find_all_fabric_devs(ha, &new_fcports);
2325                 if (rval != QLA_SUCCESS)
2326                         break;
2327
2328                 /*
2329                  * Logout all previous fabric devices marked lost, except
2330                  * tape devices.
2331                  */
2332                 list_for_each_entry(fcport, &pha->fcports, list) {
2333                         if (fcport->vp_idx !=ha->vp_idx)
2334                                 continue;
2335
2336                         if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2337                                 break;
2338
2339                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0)
2340                                 continue;
2341
2342                         if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2343                                 qla2x00_mark_device_lost(ha, fcport,
2344                                     ql2xplogiabsentdevice, 0);
2345                                 if (fcport->loop_id != FC_NO_LOOP_ID &&
2346                                     (fcport->flags & FCF_TAPE_PRESENT) == 0 &&
2347                                     fcport->port_type != FCT_INITIATOR &&
2348                                     fcport->port_type != FCT_BROADCAST) {
2349                                         ha->isp_ops->fabric_logout(ha,
2350                                             fcport->loop_id,
2351                                             fcport->d_id.b.domain,
2352                                             fcport->d_id.b.area,
2353                                             fcport->d_id.b.al_pa);
2354                                         fcport->loop_id = FC_NO_LOOP_ID;
2355                                 }
2356                         }
2357                 }
2358
2359                 /* Starting free loop ID. */
2360                 next_loopid = pha->min_external_loopid;
2361
2362                 /*
2363                  * Scan through our port list and login entries that need to be
2364                  * logged in.
2365                  */
2366                 list_for_each_entry(fcport, &pha->fcports, list) {
2367                         if (fcport->vp_idx != ha->vp_idx)
2368                                 continue;
2369
2370                         if (atomic_read(&ha->loop_down_timer) ||
2371                             test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2372                                 break;
2373
2374                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 ||
2375                             (fcport->flags & FCF_LOGIN_NEEDED) == 0)
2376                                 continue;
2377
2378                         if (fcport->loop_id == FC_NO_LOOP_ID) {
2379                                 fcport->loop_id = next_loopid;
2380                                 rval = qla2x00_find_new_loop_id(ha, fcport);
2381                                 if (rval != QLA_SUCCESS) {
2382                                         /* Ran out of IDs to use */
2383                                         break;
2384                                 }
2385                         }
2386                         /* Login and update database */
2387                         qla2x00_fabric_dev_login(ha, fcport, &next_loopid);
2388                 }
2389
2390                 /* Exit if out of loop IDs. */
2391                 if (rval != QLA_SUCCESS) {
2392                         break;
2393                 }
2394
2395                 /*
2396                  * Login and add the new devices to our port list.
2397                  */
2398                 list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) {
2399                         if (atomic_read(&ha->loop_down_timer) ||
2400                             test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2401                                 break;
2402
2403                         /* Find a new loop ID to use. */
2404                         fcport->loop_id = next_loopid;
2405                         rval = qla2x00_find_new_loop_id(ha, fcport);
2406                         if (rval != QLA_SUCCESS) {
2407                                 /* Ran out of IDs to use */
2408                                 break;
2409                         }
2410
2411                         /* Login and update database */
2412                         qla2x00_fabric_dev_login(ha, fcport, &next_loopid);
2413
2414                         if (ha->parent) {
2415                                 fcport->ha = ha;
2416                                 fcport->vp_idx = ha->vp_idx;
2417                                 list_add_tail(&fcport->vp_fcport,
2418                                     &ha->vp_fcports);
2419                                 list_move_tail(&fcport->list,
2420                                     &ha->parent->fcports);
2421                         } else
2422                                 list_move_tail(&fcport->list, &ha->fcports);
2423                 }
2424         } while (0);
2425
2426         /* Free all new device structures not processed. */
2427         list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) {
2428                 list_del(&fcport->list);
2429                 kfree(fcport);
2430         }
2431
2432         if (rval) {
2433                 DEBUG2(printk("scsi(%ld): Configure fabric error exit: "
2434                     "rval=%d\n", ha->host_no, rval));
2435         }
2436
2437         return (rval);
2438 }
2439
2440
2441 /*
2442  * qla2x00_find_all_fabric_devs
2443  *
2444  * Input:
2445  *      ha = adapter block pointer.
2446  *      dev = database device entry pointer.
2447  *
2448  * Returns:
2449  *      0 = success.
2450  *
2451  * Context:
2452  *      Kernel context.
2453  */
2454 static int
2455 qla2x00_find_all_fabric_devs(scsi_qla_host_t *ha, struct list_head *new_fcports)
2456 {
2457         int             rval;
2458         uint16_t        loop_id;
2459         fc_port_t       *fcport, *new_fcport, *fcptemp;
2460         int             found;
2461
2462         sw_info_t       *swl;
2463         int             swl_idx;
2464         int             first_dev, last_dev;
2465         port_id_t       wrap, nxt_d_id;
2466         int             vp_index;
2467         int             empty_vp_index;
2468         int             found_vp;
2469         scsi_qla_host_t *vha;
2470         scsi_qla_host_t *pha = to_qla_parent(ha);
2471
2472         rval = QLA_SUCCESS;
2473
2474         /* Try GID_PT to get device list, else GAN. */
2475         swl = kcalloc(MAX_FIBRE_DEVICES, sizeof(sw_info_t), GFP_ATOMIC);
2476         if (!swl) {
2477                 /*EMPTY*/
2478                 DEBUG2(printk("scsi(%ld): GID_PT allocations failed, fallback "
2479                     "on GA_NXT\n", ha->host_no));
2480         } else {
2481                 if (qla2x00_gid_pt(ha, swl) != QLA_SUCCESS) {
2482                         kfree(swl);
2483                         swl = NULL;
2484                 } else if (qla2x00_gpn_id(ha, swl) != QLA_SUCCESS) {
2485                         kfree(swl);
2486                         swl = NULL;
2487                 } else if (qla2x00_gnn_id(ha, swl) != QLA_SUCCESS) {
2488                         kfree(swl);
2489                         swl = NULL;
2490                 } else if (qla2x00_gfpn_id(ha, swl) == QLA_SUCCESS) {
2491                         qla2x00_gpsc(ha, swl);
2492                 }
2493         }
2494         swl_idx = 0;
2495
2496         /* Allocate temporary fcport for any new fcports discovered. */
2497         new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
2498         if (new_fcport == NULL) {
2499                 kfree(swl);
2500                 return (QLA_MEMORY_ALLOC_FAILED);
2501         }
2502         new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
2503         new_fcport->vp_idx = ha->vp_idx;
2504         /* Set start port ID scan at adapter ID. */
2505         first_dev = 1;
2506         last_dev = 0;
2507
2508         /* Starting free loop ID. */
2509         loop_id = pha->min_external_loopid;
2510         for (; loop_id <= ha->last_loop_id; loop_id++) {
2511                 if (qla2x00_is_reserved_id(ha, loop_id))
2512                         continue;
2513
2514                 if (atomic_read(&ha->loop_down_timer) || LOOP_TRANSITION(ha))
2515                         break;
2516
2517                 if (swl != NULL) {
2518                         if (last_dev) {
2519                                 wrap.b24 = new_fcport->d_id.b24;
2520                         } else {
2521                                 new_fcport->d_id.b24 = swl[swl_idx].d_id.b24;
2522                                 memcpy(new_fcport->node_name,
2523                                     swl[swl_idx].node_name, WWN_SIZE);
2524                                 memcpy(new_fcport->port_name,
2525                                     swl[swl_idx].port_name, WWN_SIZE);
2526                                 memcpy(new_fcport->fabric_port_name,
2527                                     swl[swl_idx].fabric_port_name, WWN_SIZE);
2528                                 new_fcport->fp_speed = swl[swl_idx].fp_speed;
2529
2530                                 if (swl[swl_idx].d_id.b.rsvd_1 != 0) {
2531                                         last_dev = 1;
2532                                 }
2533                                 swl_idx++;
2534                         }
2535                 } else {
2536                         /* Send GA_NXT to the switch */
2537                         rval = qla2x00_ga_nxt(ha, new_fcport);
2538                         if (rval != QLA_SUCCESS) {
2539                                 qla_printk(KERN_WARNING, ha,
2540                                     "SNS scan failed -- assuming zero-entry "
2541                                     "result...\n");
2542                                 list_for_each_entry_safe(fcport, fcptemp,
2543                                     new_fcports, list) {
2544                                         list_del(&fcport->list);
2545                                         kfree(fcport);
2546                                 }
2547                                 rval = QLA_SUCCESS;
2548                                 break;
2549                         }
2550                 }
2551
2552                 /* If wrap on switch device list, exit. */
2553                 if (first_dev) {
2554                         wrap.b24 = new_fcport->d_id.b24;
2555                         first_dev = 0;
2556                 } else if (new_fcport->d_id.b24 == wrap.b24) {
2557                         DEBUG2(printk("scsi(%ld): device wrap (%02x%02x%02x)\n",
2558                             ha->host_no, new_fcport->d_id.b.domain,
2559                             new_fcport->d_id.b.area, new_fcport->d_id.b.al_pa));
2560                         break;
2561                 }
2562
2563                 /* Bypass if same physical adapter. */
2564                 if (new_fcport->d_id.b24 == pha->d_id.b24)
2565                         continue;
2566
2567                 /* Bypass virtual ports of the same host. */
2568                 if (pha->num_vhosts) {
2569                         for_each_mapped_vp_idx(pha, vp_index) {
2570                                 empty_vp_index = 1;
2571                                 found_vp = 0;
2572                                 list_for_each_entry(vha, &pha->vp_list,
2573                                     vp_list) {
2574                                         if (vp_index == vha->vp_idx) {
2575                                                 empty_vp_index = 0;
2576                                                 found_vp = 1;
2577                                                 break;
2578                                         }
2579                                 }
2580
2581                                 if (empty_vp_index)
2582                                         continue;
2583
2584                                 if (found_vp &&
2585                                     new_fcport->d_id.b24 == vha->d_id.b24)
2586                                         break;
2587                         }
2588
2589                         if (vp_index <= pha->max_npiv_vports)
2590                                 continue;
2591                 }
2592
2593                 /* Bypass if same domain and area of adapter. */
2594                 if (((new_fcport->d_id.b24 & 0xffff00) ==
2595                     (ha->d_id.b24 & 0xffff00)) && ha->current_topology ==
2596                         ISP_CFG_FL)
2597                             continue;
2598
2599                 /* Bypass reserved domain fields. */
2600                 if ((new_fcport->d_id.b.domain & 0xf0) == 0xf0)
2601                         continue;
2602
2603                 /* Locate matching device in database. */
2604                 found = 0;
2605                 list_for_each_entry(fcport, &pha->fcports, list) {
2606                         if (new_fcport->vp_idx != fcport->vp_idx)
2607                                 continue;
2608                         if (memcmp(new_fcport->port_name, fcport->port_name,
2609                             WWN_SIZE))
2610                                 continue;
2611
2612                         found++;
2613
2614                         /* Update port state. */
2615                         memcpy(fcport->fabric_port_name,
2616                             new_fcport->fabric_port_name, WWN_SIZE);
2617                         fcport->fp_speed = new_fcport->fp_speed;
2618
2619                         /*
2620                          * If address the same and state FCS_ONLINE, nothing
2621                          * changed.
2622                          */
2623                         if (fcport->d_id.b24 == new_fcport->d_id.b24 &&
2624                             atomic_read(&fcport->state) == FCS_ONLINE) {
2625                                 break;
2626                         }
2627
2628                         /*
2629                          * If device was not a fabric device before.
2630                          */
2631                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) {
2632                                 fcport->d_id.b24 = new_fcport->d_id.b24;
2633                                 fcport->loop_id = FC_NO_LOOP_ID;
2634                                 fcport->flags |= (FCF_FABRIC_DEVICE |
2635                                     FCF_LOGIN_NEEDED);
2636                                 fcport->flags &= ~FCF_PERSISTENT_BOUND;
2637                                 break;
2638                         }
2639
2640                         /*
2641                          * Port ID changed or device was marked to be updated;
2642                          * Log it out if still logged in and mark it for
2643                          * relogin later.
2644                          */
2645                         fcport->d_id.b24 = new_fcport->d_id.b24;
2646                         fcport->flags |= FCF_LOGIN_NEEDED;
2647                         if (fcport->loop_id != FC_NO_LOOP_ID &&
2648                             (fcport->flags & FCF_TAPE_PRESENT) == 0 &&
2649                             fcport->port_type != FCT_INITIATOR &&
2650                             fcport->port_type != FCT_BROADCAST) {
2651                                 ha->isp_ops->fabric_logout(ha, fcport->loop_id,
2652                                     fcport->d_id.b.domain, fcport->d_id.b.area,
2653                                     fcport->d_id.b.al_pa);
2654                                 fcport->loop_id = FC_NO_LOOP_ID;
2655                         }
2656
2657                         break;
2658                 }
2659
2660                 if (found)
2661                         continue;
2662
2663                 /* If device was not in our fcports list, then add it. */
2664                 list_add_tail(&new_fcport->list, new_fcports);
2665
2666                 /* Allocate a new replacement fcport. */
2667                 nxt_d_id.b24 = new_fcport->d_id.b24;
2668                 new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
2669                 if (new_fcport == NULL) {
2670                         kfree(swl);
2671                         return (QLA_MEMORY_ALLOC_FAILED);
2672                 }
2673                 new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
2674                 new_fcport->d_id.b24 = nxt_d_id.b24;
2675                 new_fcport->vp_idx = ha->vp_idx;
2676         }
2677
2678         kfree(swl);
2679         kfree(new_fcport);
2680
2681         if (!list_empty(new_fcports))
2682                 ha->device_flags |= DFLG_FABRIC_DEVICES;
2683
2684         return (rval);
2685 }
2686
2687 /*
2688  * qla2x00_find_new_loop_id
2689  *      Scan through our port list and find a new usable loop ID.
2690  *
2691  * Input:
2692  *      ha:     adapter state pointer.
2693  *      dev:    port structure pointer.
2694  *
2695  * Returns:
2696  *      qla2x00 local function return status code.
2697  *
2698  * Context:
2699  *      Kernel context.
2700  */
2701 static int
2702 qla2x00_find_new_loop_id(scsi_qla_host_t *ha, fc_port_t *dev)
2703 {
2704         int     rval;
2705         int     found;
2706         fc_port_t *fcport;
2707         uint16_t first_loop_id;
2708         scsi_qla_host_t *pha = to_qla_parent(ha);
2709
2710         rval = QLA_SUCCESS;
2711
2712         /* Save starting loop ID. */
2713         first_loop_id = dev->loop_id;
2714
2715         for (;;) {
2716                 /* Skip loop ID if already used by adapter. */
2717                 if (dev->loop_id == ha->loop_id) {
2718                         dev->loop_id++;
2719                 }
2720
2721                 /* Skip reserved loop IDs. */
2722                 while (qla2x00_is_reserved_id(ha, dev->loop_id)) {
2723                         dev->loop_id++;
2724                 }
2725
2726                 /* Reset loop ID if passed the end. */
2727                 if (dev->loop_id > ha->last_loop_id) {
2728                         /* first loop ID. */
2729                         dev->loop_id = ha->min_external_loopid;
2730                 }
2731
2732                 /* Check for loop ID being already in use. */
2733                 found = 0;
2734                 fcport = NULL;
2735                 list_for_each_entry(fcport, &pha->fcports, list) {
2736                         if (fcport->loop_id == dev->loop_id && fcport != dev) {
2737                                 /* ID possibly in use */
2738                                 found++;
2739                                 break;
2740                         }
2741                 }
2742
2743                 /* If not in use then it is free to use. */
2744                 if (!found) {
2745                         break;
2746                 }
2747
2748                 /* ID in use. Try next value. */
2749                 dev->loop_id++;
2750
2751                 /* If wrap around. No free ID to use. */
2752                 if (dev->loop_id == first_loop_id) {
2753                         dev->loop_id = FC_NO_LOOP_ID;
2754                         rval = QLA_FUNCTION_FAILED;
2755                         break;
2756                 }
2757         }
2758
2759         return (rval);
2760 }
2761
2762 /*
2763  * qla2x00_device_resync
2764  *      Marks devices in the database that needs resynchronization.
2765  *
2766  * Input:
2767  *      ha = adapter block pointer.
2768  *
2769  * Context:
2770  *      Kernel context.
2771  */
2772 static int
2773 qla2x00_device_resync(scsi_qla_host_t *ha)
2774 {
2775         int     rval;
2776         uint32_t mask;
2777         fc_port_t *fcport;
2778         uint32_t rscn_entry;
2779         uint8_t rscn_out_iter;
2780         uint8_t format;
2781         port_id_t d_id;
2782         scsi_qla_host_t *pha = to_qla_parent(ha);
2783
2784         rval = QLA_RSCNS_HANDLED;
2785
2786         while (ha->rscn_out_ptr != ha->rscn_in_ptr ||
2787             ha->flags.rscn_queue_overflow) {
2788
2789                 rscn_entry = ha->rscn_queue[ha->rscn_out_ptr];
2790                 format = MSB(MSW(rscn_entry));
2791                 d_id.b.domain = LSB(MSW(rscn_entry));
2792                 d_id.b.area = MSB(LSW(rscn_entry));
2793                 d_id.b.al_pa = LSB(LSW(rscn_entry));
2794
2795                 DEBUG(printk("scsi(%ld): RSCN queue entry[%d] = "
2796                     "[%02x/%02x%02x%02x].\n",
2797                     ha->host_no, ha->rscn_out_ptr, format, d_id.b.domain,
2798                     d_id.b.area, d_id.b.al_pa));
2799
2800                 ha->rscn_out_ptr++;
2801                 if (ha->rscn_out_ptr == MAX_RSCN_COUNT)
2802                         ha->rscn_out_ptr = 0;
2803
2804                 /* Skip duplicate entries. */
2805                 for (rscn_out_iter = ha->rscn_out_ptr;
2806                     !ha->flags.rscn_queue_overflow &&
2807                     rscn_out_iter != ha->rscn_in_ptr;
2808                     rscn_out_iter = (rscn_out_iter ==
2809                         (MAX_RSCN_COUNT - 1)) ? 0: rscn_out_iter + 1) {
2810
2811                         if (rscn_entry != ha->rscn_queue[rscn_out_iter])
2812                                 break;
2813
2814                         DEBUG(printk("scsi(%ld): Skipping duplicate RSCN queue "
2815                             "entry found at [%d].\n", ha->host_no,
2816                             rscn_out_iter));
2817
2818                         ha->rscn_out_ptr = rscn_out_iter;
2819                 }
2820
2821                 /* Queue overflow, set switch default case. */
2822                 if (ha->flags.rscn_queue_overflow) {
2823                         DEBUG(printk("scsi(%ld): device_resync: rscn "
2824                             "overflow.\n", ha->host_no));
2825
2826                         format = 3;
2827                         ha->flags.rscn_queue_overflow = 0;
2828                 }
2829
2830                 switch (format) {
2831                 case 0:
2832                         mask = 0xffffff;
2833                         break;
2834                 case 1:
2835                         mask = 0xffff00;
2836                         break;
2837                 case 2:
2838                         mask = 0xff0000;
2839                         break;
2840                 default:
2841                         mask = 0x0;
2842                         d_id.b24 = 0;
2843                         ha->rscn_out_ptr = ha->rscn_in_ptr;
2844                         break;
2845                 }
2846
2847                 rval = QLA_SUCCESS;
2848
2849                 list_for_each_entry(fcport, &pha->fcports, list) {
2850                         if (fcport->vp_idx != ha->vp_idx)
2851                                 continue;
2852
2853                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 ||
2854                             (fcport->d_id.b24 & mask) != d_id.b24 ||
2855                             fcport->port_type == FCT_BROADCAST)
2856                                 continue;
2857
2858                         if (atomic_read(&fcport->state) == FCS_ONLINE) {
2859                                 if (format != 3 ||
2860                                     fcport->port_type != FCT_INITIATOR) {
2861                                         qla2x00_mark_device_lost(ha, fcport,
2862                                             0, 0);
2863                                 }
2864                         }
2865                         fcport->flags &= ~FCF_FARP_DONE;
2866                 }
2867         }
2868         return (rval);
2869 }
2870
2871 /*
2872  * qla2x00_fabric_dev_login
2873  *      Login fabric target device and update FC port database.
2874  *
2875  * Input:
2876  *      ha:             adapter state pointer.
2877  *      fcport:         port structure list pointer.
2878  *      next_loopid:    contains value of a new loop ID that can be used
2879  *                      by the next login attempt.
2880  *
2881  * Returns:
2882  *      qla2x00 local function return status code.
2883  *
2884  * Context:
2885  *      Kernel context.
2886  */
2887 static int
2888 qla2x00_fabric_dev_login(scsi_qla_host_t *ha, fc_port_t *fcport,
2889     uint16_t *next_loopid)
2890 {
2891         int     rval;
2892         int     retry;
2893         uint8_t opts;
2894
2895         rval = QLA_SUCCESS;
2896         retry = 0;
2897
2898         rval = qla2x00_fabric_login(ha, fcport, next_loopid);
2899         if (rval == QLA_SUCCESS) {
2900                 /* Send an ADISC to tape devices.*/
2901                 opts = 0;
2902                 if (fcport->flags & FCF_TAPE_PRESENT)
2903                         opts |= BIT_1;
2904                 rval = qla2x00_get_port_database(ha, fcport, opts);
2905                 if (rval != QLA_SUCCESS) {
2906                         ha->isp_ops->fabric_logout(ha, fcport->loop_id,
2907                             fcport->d_id.b.domain, fcport->d_id.b.area,
2908                             fcport->d_id.b.al_pa);
2909                         qla2x00_mark_device_lost(ha, fcport, 1, 0);
2910                 } else {
2911                         qla2x00_update_fcport(ha, fcport);
2912                 }
2913         }
2914
2915         return (rval);
2916 }
2917
2918 /*
2919  * qla2x00_fabric_login
2920  *      Issue fabric login command.
2921  *
2922  * Input:
2923  *      ha = adapter block pointer.
2924  *      device = pointer to FC device type structure.
2925  *
2926  * Returns:
2927  *      0 - Login successfully
2928  *      1 - Login failed
2929  *      2 - Initiator device
2930  *      3 - Fatal error
2931  */
2932 int
2933 qla2x00_fabric_login(scsi_qla_host_t *ha, fc_port_t *fcport,
2934     uint16_t *next_loopid)
2935 {
2936         int     rval;
2937         int     retry;
2938         uint16_t tmp_loopid;
2939         uint16_t mb[MAILBOX_REGISTER_COUNT];
2940
2941         retry = 0;
2942         tmp_loopid = 0;
2943
2944         for (;;) {
2945                 DEBUG(printk("scsi(%ld): Trying Fabric Login w/loop id 0x%04x "
2946                     "for port %02x%02x%02x.\n",
2947                     ha->host_no, fcport->loop_id, fcport->d_id.b.domain,
2948                     fcport->d_id.b.area, fcport->d_id.b.al_pa));
2949
2950                 /* Login fcport on switch. */
2951                 ha->isp_ops->fabric_login(ha, fcport->loop_id,
2952                     fcport->d_id.b.domain, fcport->d_id.b.area,
2953                     fcport->d_id.b.al_pa, mb, BIT_0);
2954                 if (mb[0] == MBS_PORT_ID_USED) {
2955                         /*
2956                          * Device has another loop ID.  The firmware team
2957                          * recommends the driver perform an implicit login with
2958                          * the specified ID again. The ID we just used is save
2959                          * here so we return with an ID that can be tried by
2960                          * the next login.
2961                          */
2962                         retry++;
2963                         tmp_loopid = fcport->loop_id;
2964                         fcport->loop_id = mb[1];
2965
2966                         DEBUG(printk("Fabric Login: port in use - next "
2967                             "loop id=0x%04x, port Id=%02x%02x%02x.\n",
2968                             fcport->loop_id, fcport->d_id.b.domain,
2969                             fcport->d_id.b.area, fcport->d_id.b.al_pa));
2970
2971                 } else if (mb[0] == MBS_COMMAND_COMPLETE) {
2972                         /*
2973                          * Login succeeded.
2974                          */
2975                         if (retry) {
2976                                 /* A retry occurred before. */
2977                                 *next_loopid = tmp_loopid;
2978                         } else {
2979                                 /*
2980                                  * No retry occurred before. Just increment the
2981                                  * ID value for next login.
2982                                  */
2983                                 *next_loopid = (fcport->loop_id + 1);
2984                         }
2985
2986                         if (mb[1] & BIT_0) {
2987                                 fcport->port_type = FCT_INITIATOR;
2988                         } else {
2989                                 fcport->port_type = FCT_TARGET;
2990                                 if (mb[1] & BIT_1) {
2991                                         fcport->flags |= FCF_TAPE_PRESENT;
2992                                 }
2993                         }
2994
2995                         if (mb[10] & BIT_0)
2996                                 fcport->supported_classes |= FC_COS_CLASS2;
2997                         if (mb[10] & BIT_1)
2998                                 fcport->supported_classes |= FC_COS_CLASS3;
2999
3000                         rval = QLA_SUCCESS;
3001                         break;
3002                 } else if (mb[0] == MBS_LOOP_ID_USED) {
3003                         /*
3004                          * Loop ID already used, try next loop ID.
3005                          */
3006                         fcport->loop_id++;
3007                         rval = qla2x00_find_new_loop_id(ha, fcport);
3008                         if (rval != QLA_SUCCESS) {
3009                                 /* Ran out of loop IDs to use */
3010                                 break;
3011                         }
3012                 } else if (mb[0] == MBS_COMMAND_ERROR) {
3013                         /*
3014                          * Firmware possibly timed out during login. If NO
3015                          * retries are left to do then the device is declared
3016                          * dead.
3017                          */
3018                         *next_loopid = fcport->loop_id;
3019                         ha->isp_ops->fabric_logout(ha, fcport->loop_id,
3020                             fcport->d_id.b.domain, fcport->d_id.b.area,
3021                             fcport->d_id.b.al_pa);
3022                         qla2x00_mark_device_lost(ha, fcport, 1, 0);
3023
3024                         rval = 1;
3025                         break;
3026                 } else {
3027                         /*
3028                          * unrecoverable / not handled error
3029                          */
3030                         DEBUG2(printk("%s(%ld): failed=%x port_id=%02x%02x%02x "
3031                             "loop_id=%x jiffies=%lx.\n",
3032                             __func__, ha->host_no, mb[0],
3033                             fcport->d_id.b.domain, fcport->d_id.b.area,
3034                             fcport->d_id.b.al_pa, fcport->loop_id, jiffies));
3035
3036                         *next_loopid = fcport->loop_id;
3037                         ha->isp_ops->fabric_logout(ha, fcport->loop_id,
3038                             fcport->d_id.b.domain, fcport->d_id.b.area,
3039                             fcport->d_id.b.al_pa);
3040                         fcport->loop_id = FC_NO_LOOP_ID;
3041                         fcport->login_retry = 0;
3042
3043                         rval = 3;
3044                         break;
3045                 }
3046         }
3047
3048         return (rval);
3049 }
3050
3051 /*
3052  * qla2x00_local_device_login
3053  *      Issue local device login command.
3054  *
3055  * Input:
3056  *      ha = adapter block pointer.
3057  *      loop_id = loop id of device to login to.
3058  *
3059  * Returns (Where's the #define!!!!):
3060  *      0 - Login successfully
3061  *      1 - Login failed
3062  *      3 - Fatal error
3063  */
3064 int
3065 qla2x00_local_device_login(scsi_qla_host_t *ha, fc_port_t *fcport)
3066 {
3067         int             rval;
3068         uint16_t        mb[MAILBOX_REGISTER_COUNT];
3069
3070         memset(mb, 0, sizeof(mb));
3071         rval = qla2x00_login_local_device(ha, fcport, mb, BIT_0);
3072         if (rval == QLA_SUCCESS) {
3073                 /* Interrogate mailbox registers for any errors */
3074                 if (mb[0] == MBS_COMMAND_ERROR)
3075                         rval = 1;
3076                 else if (mb[0] == MBS_COMMAND_PARAMETER_ERROR)
3077                         /* device not in PCB table */
3078                         rval = 3;
3079         }
3080
3081         return (rval);
3082 }
3083
3084 /*
3085  *  qla2x00_loop_resync
3086  *      Resync with fibre channel devices.
3087  *
3088  * Input:
3089  *      ha = adapter block pointer.
3090  *
3091  * Returns:
3092  *      0 = success
3093  */
3094 int
3095 qla2x00_loop_resync(scsi_qla_host_t *ha)
3096 {
3097         int   rval;
3098         uint32_t wait_time;
3099
3100         rval = QLA_SUCCESS;
3101
3102         atomic_set(&ha->loop_state, LOOP_UPDATE);
3103         clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
3104         if (ha->flags.online) {
3105                 if (!(rval = qla2x00_fw_ready(ha))) {
3106                         /* Wait at most MAX_TARGET RSCNs for a stable link. */
3107                         wait_time = 256;
3108                         do {
3109                                 atomic_set(&ha->loop_state, LOOP_UPDATE);
3110
3111                                 /* Issue a marker after FW becomes ready. */
3112                                 qla2x00_marker(ha, 0, 0, MK_SYNC_ALL);
3113                                 ha->marker_needed = 0;
3114
3115                                 /* Remap devices on Loop. */
3116                                 clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
3117
3118                                 qla2x00_configure_loop(ha);
3119                                 wait_time--;
3120                         } while (!atomic_read(&ha->loop_down_timer) &&
3121                                 !(test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) &&
3122                                 wait_time &&
3123                                 (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)));
3124                 }
3125         }
3126
3127         if (test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
3128                 return (QLA_FUNCTION_FAILED);
3129         }
3130
3131         if (rval) {
3132                 DEBUG2_3(printk("%s(): **** FAILED ****\n", __func__));
3133         }
3134
3135         return (rval);
3136 }
3137
3138 void
3139 qla2x00_rescan_fcports(scsi_qla_host_t *ha)
3140 {
3141         int rescan_done;
3142         fc_port_t *fcport;
3143
3144         rescan_done = 0;
3145         list_for_each_entry(fcport, &ha->fcports, list) {
3146                 if ((fcport->flags & FCF_RESCAN_NEEDED) == 0)
3147                         continue;
3148
3149                 qla2x00_update_fcport(ha, fcport);
3150                 fcport->flags &= ~FCF_RESCAN_NEEDED;
3151
3152                 rescan_done = 1;
3153         }
3154         qla2x00_probe_for_all_luns(ha);
3155 }
3156
3157 void
3158 qla2x00_update_fcports(scsi_qla_host_t *ha)
3159 {
3160         fc_port_t *fcport;
3161
3162         /* Go with deferred removal of rport references. */
3163         list_for_each_entry(fcport, &ha->fcports, list)
3164                 if (fcport->drport)
3165                         qla2x00_rport_del(fcport);
3166 }
3167
3168 /*
3169 *  qla2x00_abort_isp
3170 *      Resets ISP and aborts all outstanding commands.
3171 *
3172 * Input:
3173 *      ha           = adapter block pointer.
3174 *
3175 * Returns:
3176 *      0 = success
3177 */
3178 int
3179 qla2x00_abort_isp(scsi_qla_host_t *ha)
3180 {
3181         int rval;
3182         unsigned long flags = 0;
3183         uint16_t       cnt;
3184         srb_t          *sp;
3185         uint8_t        status = 0;
3186
3187         if (ha->flags.online) {
3188                 ha->flags.online = 0;
3189                 clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
3190
3191                 qla_printk(KERN_INFO, ha,
3192                     "Performing ISP error recovery - ha= %p.\n", ha);
3193                 ha->isp_ops->reset_chip(ha);
3194
3195                 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
3196                 if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
3197                         atomic_set(&ha->loop_state, LOOP_DOWN);
3198                         qla2x00_mark_all_devices_lost(ha, 0);
3199                 } else {
3200                         if (!atomic_read(&ha->loop_down_timer))
3201                                 atomic_set(&ha->loop_down_timer,
3202                                     LOOP_DOWN_TIME);
3203                 }
3204
3205                 spin_lock_irqsave(&ha->hardware_lock, flags);
3206                 /* Requeue all commands in outstanding command list. */
3207                 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
3208                         sp = ha->outstanding_cmds[cnt];
3209                         if (sp) {
3210                                 ha->outstanding_cmds[cnt] = NULL;
3211                                 sp->flags = 0;
3212                                 sp->cmd->result = DID_RESET << 16;
3213                                 sp->cmd->host_scribble = (unsigned char *)NULL;
3214                                 qla2x00_sp_compl(ha, sp);
3215                         }
3216                 }
3217                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3218
3219                 ha->isp_ops->get_flash_version(ha, ha->request_ring);
3220
3221                 ha->isp_ops->nvram_config(ha);
3222
3223                 if (!qla2x00_restart_isp(ha)) {
3224                         clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
3225
3226                         if (!atomic_read(&ha->loop_down_timer)) {
3227                                 /*
3228                                  * Issue marker command only when we are going
3229                                  * to start the I/O .
3230                                  */
3231                                 ha->marker_needed = 1;
3232                         }
3233
3234                         ha->flags.online = 1;
3235
3236                         ha->isp_ops->enable_intrs(ha);
3237
3238                         ha->isp_abort_cnt = 0;
3239                         clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
3240
3241                         if (ha->eft) {
3242                                 rval = qla2x00_enable_eft_trace(ha,
3243                                     ha->eft_dma, EFT_NUM_BUFFERS);
3244                                 if (rval) {
3245                                         qla_printk(KERN_WARNING, ha,
3246                                             "Unable to reinitialize EFT "
3247                                             "(%d).\n", rval);
3248                                 }
3249                         }
3250                 } else {        /* failed the ISP abort */
3251                         ha->flags.online = 1;
3252                         if (test_bit(ISP_ABORT_RETRY, &ha->dpc_flags)) {
3253                                 if (ha->isp_abort_cnt == 0) {
3254                                         qla_printk(KERN_WARNING, ha,
3255                                             "ISP error recovery failed - "
3256                                             "board disabled\n");
3257                                         /*
3258                                          * The next call disables the board
3259                                          * completely.
3260                                          */
3261                                         ha->isp_ops->reset_adapter(ha);
3262                                         ha->flags.online = 0;
3263                                         clear_bit(ISP_ABORT_RETRY,
3264                                             &ha->dpc_flags);
3265                                         status = 0;
3266                                 } else { /* schedule another ISP abort */
3267                                         ha->isp_abort_cnt--;
3268                                         DEBUG(printk("qla%ld: ISP abort - "
3269                                             "retry remaining %d\n",
3270                                             ha->host_no, ha->isp_abort_cnt));
3271                                         status = 1;
3272                                 }
3273                         } else {
3274                                 ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT;
3275                                 DEBUG(printk("qla2x00(%ld): ISP error recovery "
3276                                     "- retrying (%d) more times\n",
3277                                     ha->host_no, ha->isp_abort_cnt));
3278                                 set_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
3279                                 status = 1;
3280                         }
3281                 }
3282
3283         }
3284
3285         if (status) {
3286                 qla_printk(KERN_INFO, ha,
3287                         "qla2x00_abort_isp: **** FAILED ****\n");
3288         } else {
3289                 DEBUG(printk(KERN_INFO
3290                                 "qla2x00_abort_isp(%ld): exiting.\n",
3291                                 ha->host_no));
3292         }
3293
3294         return(status);
3295 }
3296
3297 /*
3298 *  qla2x00_restart_isp
3299 *      restarts the ISP after a reset
3300 *
3301 * Input:
3302 *      ha = adapter block pointer.
3303 *
3304 * Returns:
3305 *      0 = success
3306 */
3307 static int
3308 qla2x00_restart_isp(scsi_qla_host_t *ha)
3309 {
3310         uint8_t         status = 0;
3311         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3312         unsigned long   flags = 0;
3313         uint32_t wait_time;
3314
3315         /* If firmware needs to be loaded */
3316         if (qla2x00_isp_firmware(ha)) {
3317                 ha->flags.online = 0;
3318                 if (!(status = ha->isp_ops->chip_diag(ha))) {
3319                         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
3320                                 status = qla2x00_setup_chip(ha);
3321                                 goto done;
3322                         }
3323
3324                         spin_lock_irqsave(&ha->hardware_lock, flags);
3325
3326                         if (!IS_QLA24XX(ha) && !IS_QLA54XX(ha) &&
3327                             !IS_QLA25XX(ha)) {
3328                                 /*
3329                                  * Disable SRAM, Instruction RAM and GP RAM
3330                                  * parity.
3331                                  */
3332                                 WRT_REG_WORD(&reg->hccr,
3333                                     (HCCR_ENABLE_PARITY + 0x0));
3334                                 RD_REG_WORD(&reg->hccr);
3335                         }
3336
3337                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3338
3339                         status = qla2x00_setup_chip(ha);
3340
3341                         spin_lock_irqsave(&ha->hardware_lock, flags);
3342
3343                         if (!IS_QLA24XX(ha) && !IS_QLA54XX(ha) &&
3344                             !IS_QLA25XX(ha)) {
3345                                 /* Enable proper parity */
3346                                 if (IS_QLA2300(ha))
3347                                         /* SRAM parity */
3348                                         WRT_REG_WORD(&reg->hccr,
3349                                             (HCCR_ENABLE_PARITY + 0x1));
3350                                 else
3351                                         /*
3352                                          * SRAM, Instruction RAM and GP RAM
3353                                          * parity.
3354                                          */
3355                                         WRT_REG_WORD(&reg->hccr,
3356                                             (HCCR_ENABLE_PARITY + 0x7));
3357                                 RD_REG_WORD(&reg->hccr);
3358                         }
3359
3360                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3361                 }
3362         }
3363
3364  done:
3365         if (!status && !(status = qla2x00_init_rings(ha))) {
3366                 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
3367                 if (!(status = qla2x00_fw_ready(ha))) {
3368                         DEBUG(printk("%s(): Start configure loop, "
3369                             "status = %d\n", __func__, status));
3370
3371                         /* Issue a marker after FW becomes ready. */
3372                         qla2x00_marker(ha, 0, 0, MK_SYNC_ALL);
3373
3374                         ha->flags.online = 1;
3375                         /* Wait at most MAX_TARGET RSCNs for a stable link. */
3376                         wait_time = 256;
3377                         do {
3378                                 clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
3379                                 qla2x00_configure_loop(ha);
3380                                 wait_time--;
3381                         } while (!atomic_read(&ha->loop_down_timer) &&
3382                                 !(test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) &&
3383                                 wait_time &&
3384                                 (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)));
3385                 }
3386
3387                 /* if no cable then assume it's good */
3388                 if ((ha->device_flags & DFLG_NO_CABLE))
3389                         status = 0;
3390
3391                 DEBUG(printk("%s(): Configure loop done, status = 0x%x\n",
3392                                 __func__,
3393                                 status));
3394         }
3395         return (status);
3396 }
3397
3398 /*
3399 * qla2x00_reset_adapter
3400 *      Reset adapter.
3401 *
3402 * Input:
3403 *      ha = adapter block pointer.
3404 */
3405 void
3406 qla2x00_reset_adapter(scsi_qla_host_t *ha)
3407 {
3408         unsigned long flags = 0;
3409         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3410
3411         ha->flags.online = 0;
3412         ha->isp_ops->disable_intrs(ha);
3413
3414         spin_lock_irqsave(&ha->hardware_lock, flags);
3415         WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
3416         RD_REG_WORD(&reg->hccr);                        /* PCI Posting. */
3417         WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
3418         RD_REG_WORD(&reg->hccr);                        /* PCI Posting. */
3419         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3420 }
3421
3422 void
3423 qla24xx_reset_adapter(scsi_qla_host_t *ha)
3424 {
3425         unsigned long flags = 0;
3426         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
3427
3428         ha->flags.online = 0;
3429         ha->isp_ops->disable_intrs(ha);
3430
3431         spin_lock_irqsave(&ha->hardware_lock, flags);
3432         WRT_REG_DWORD(&reg->hccr, HCCRX_SET_RISC_RESET);
3433         RD_REG_DWORD(&reg->hccr);
3434         WRT_REG_DWORD(&reg->hccr, HCCRX_REL_RISC_PAUSE);
3435         RD_REG_DWORD(&reg->hccr);
3436         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3437 }
3438
3439 /* On sparc systems, obtain port and node WWN from firmware
3440  * properties.
3441  */
3442 static void qla24xx_nvram_wwn_from_ofw(scsi_qla_host_t *ha, struct nvram_24xx *nv)
3443 {
3444 #ifdef CONFIG_SPARC
3445         struct pci_dev *pdev = ha->pdev;
3446         struct device_node *dp = pci_device_to_OF_node(pdev);
3447         const u8 *val;
3448         int len;
3449
3450         val = of_get_property(dp, "port-wwn", &len);
3451         if (val && len >= WWN_SIZE)
3452                 memcpy(nv->port_name, val, WWN_SIZE);
3453
3454         val = of_get_property(dp, "node-wwn", &len);
3455         if (val && len >= WWN_SIZE)
3456                 memcpy(nv->node_name, val, WWN_SIZE);
3457 #endif
3458 }
3459
3460 int
3461 qla24xx_nvram_config(scsi_qla_host_t *ha)
3462 {
3463         int   rval;
3464         struct init_cb_24xx *icb;
3465         struct nvram_24xx *nv;
3466         uint32_t *dptr;
3467         uint8_t  *dptr1, *dptr2;
3468         uint32_t chksum;
3469         uint16_t cnt;
3470
3471         rval = QLA_SUCCESS;
3472         icb = (struct init_cb_24xx *)ha->init_cb;
3473         nv = ha->nvram;
3474
3475         /* Determine NVRAM starting address. */
3476         ha->nvram_size = sizeof(struct nvram_24xx);
3477         ha->nvram_base = FA_NVRAM_FUNC0_ADDR;
3478         ha->vpd_size = FA_NVRAM_VPD_SIZE;
3479         ha->vpd_base = FA_NVRAM_VPD0_ADDR;
3480         if (PCI_FUNC(ha->pdev->devfn)) {
3481                 ha->nvram_base = FA_NVRAM_FUNC1_ADDR;
3482                 ha->vpd_base = FA_NVRAM_VPD1_ADDR;
3483         }
3484
3485         /* Get VPD data into cache */
3486         ha->vpd = ha->nvram + VPD_OFFSET;
3487         ha->isp_ops->read_nvram(ha, (uint8_t *)ha->vpd,
3488             ha->nvram_base - FA_NVRAM_FUNC0_ADDR, FA_NVRAM_VPD_SIZE * 4);
3489
3490         /* Get NVRAM data into cache and calculate checksum. */
3491         dptr = (uint32_t *)nv;
3492         ha->isp_ops->read_nvram(ha, (uint8_t *)dptr, ha->nvram_base,
3493             ha->nvram_size);
3494         for (cnt = 0, chksum = 0; cnt < ha->nvram_size >> 2; cnt++)
3495                 chksum += le32_to_cpu(*dptr++);
3496
3497         DEBUG5(printk("scsi(%ld): Contents of NVRAM\n", ha->host_no));
3498         DEBUG5(qla2x00_dump_buffer((uint8_t *)nv, ha->nvram_size));
3499
3500         /* Bad NVRAM data, set defaults parameters. */
3501         if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' || nv->id[2] != 'P'
3502             || nv->id[3] != ' ' ||
3503             nv->nvram_version < __constant_cpu_to_le16(ICB_VERSION)) {
3504                 /* Reset NVRAM data. */
3505                 qla_printk(KERN_WARNING, ha, "Inconsistent NVRAM detected: "
3506                     "checksum=0x%x id=%c version=0x%x.\n", chksum, nv->id[0],
3507                     le16_to_cpu(nv->nvram_version));
3508                 qla_printk(KERN_WARNING, ha, "Falling back to functioning (yet "
3509                     "invalid -- WWPN) defaults.\n");
3510
3511                 /*
3512                  * Set default initialization control block.
3513                  */
3514                 memset(nv, 0, ha->nvram_size);
3515                 nv->nvram_version = __constant_cpu_to_le16(ICB_VERSION);
3516                 nv->version = __constant_cpu_to_le16(ICB_VERSION);
3517                 nv->frame_payload_size = __constant_cpu_to_le16(2048);
3518                 nv->execution_throttle = __constant_cpu_to_le16(0xFFFF);
3519                 nv->exchange_count = __constant_cpu_to_le16(0);
3520                 nv->hard_address = __constant_cpu_to_le16(124);
3521                 nv->port_name[0] = 0x21;
3522                 nv->port_name[1] = 0x00 + PCI_FUNC(ha->pdev->devfn);
3523                 nv->port_name[2] = 0x00;
3524                 nv->port_name[3] = 0xe0;
3525                 nv->port_name[4] = 0x8b;
3526                 nv->port_name[5] = 0x1c;
3527                 nv->port_name[6] = 0x55;
3528                 nv->port_name[7] = 0x86;
3529                 nv->node_name[0] = 0x20;
3530                 nv->node_name[1] = 0x00;
3531                 nv->node_name[2] = 0x00;
3532                 nv->node_name[3] = 0xe0;
3533                 nv->node_name[4] = 0x8b;
3534                 nv->node_name[5] = 0x1c;
3535                 nv->node_name[6] = 0x55;
3536                 nv->node_name[7] = 0x86;
3537                 qla24xx_nvram_wwn_from_ofw(ha, nv);
3538                 nv->login_retry_count = __constant_cpu_to_le16(8);
3539                 nv->interrupt_delay_timer = __constant_cpu_to_le16(0);
3540                 nv->login_timeout = __constant_cpu_to_le16(0);
3541                 nv->firmware_options_1 =
3542                     __constant_cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1);
3543                 nv->firmware_options_2 = __constant_cpu_to_le32(2 << 4);
3544                 nv->firmware_options_2 |= __constant_cpu_to_le32(BIT_12);
3545                 nv->firmware_options_3 = __constant_cpu_to_le32(2 << 13);
3546                 nv->host_p = __constant_cpu_to_le32(BIT_11|BIT_10);
3547                 nv->efi_parameters = __constant_cpu_to_le32(0);
3548                 nv->reset_delay = 5;
3549                 nv->max_luns_per_target = __constant_cpu_to_le16(128);
3550                 nv->port_down_retry_count = __constant_cpu_to_le16(30);
3551                 nv->link_down_timeout = __constant_cpu_to_le16(30);
3552
3553                 rval = 1;
3554         }
3555
3556         /* Reset Initialization control block */
3557         memset(icb, 0, sizeof(struct init_cb_24xx));
3558
3559         /* Copy 1st segment. */
3560         dptr1 = (uint8_t *)icb;
3561         dptr2 = (uint8_t *)&nv->version;
3562         cnt = (uint8_t *)&icb->response_q_inpointer - (uint8_t *)&icb->version;
3563         while (cnt--)
3564                 *dptr1++ = *dptr2++;
3565
3566         icb->login_retry_count = nv->login_retry_count;
3567         icb->link_down_on_nos = nv->link_down_on_nos;
3568
3569         /* Copy 2nd segment. */
3570         dptr1 = (uint8_t *)&icb->interrupt_delay_timer;
3571         dptr2 = (uint8_t *)&nv->interrupt_delay_timer;
3572         cnt = (uint8_t *)&icb->reserved_3 -
3573             (uint8_t *)&icb->interrupt_delay_timer;
3574         while (cnt--)
3575                 *dptr1++ = *dptr2++;
3576
3577         /*
3578          * Setup driver NVRAM options.
3579          */
3580         qla2x00_set_model_info(ha, nv->model_name, sizeof(nv->model_name),
3581             "QLA2462");
3582
3583         /* Use alternate WWN? */
3584         if (nv->host_p & __constant_cpu_to_le32(BIT_15)) {
3585                 memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
3586                 memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
3587         }
3588
3589         /* Prepare nodename */
3590         if ((icb->firmware_options_1 & __constant_cpu_to_le32(BIT_14)) == 0) {
3591                 /*
3592                  * Firmware will apply the following mask if the nodename was
3593                  * not provided.
3594                  */
3595                 memcpy(icb->node_name, icb->port_name, WWN_SIZE);
3596                 icb->node_name[0] &= 0xF0;
3597         }
3598
3599         /* Set host adapter parameters. */
3600         ha->flags.disable_risc_code_load = 0;
3601         ha->flags.enable_lip_reset = 0;
3602         ha->flags.enable_lip_full_login =
3603             le32_to_cpu(nv->host_p) & BIT_10 ? 1: 0;
3604         ha->flags.enable_target_reset =
3605             le32_to_cpu(nv->host_p) & BIT_11 ? 1: 0;
3606         ha->flags.enable_led_scheme = 0;
3607         ha->flags.disable_serdes = le32_to_cpu(nv->host_p) & BIT_5 ? 1: 0;
3608
3609         ha->operating_mode = (le32_to_cpu(icb->firmware_options_2) &
3610             (BIT_6 | BIT_5 | BIT_4)) >> 4;
3611
3612         memcpy(ha->fw_seriallink_options24, nv->seriallink_options,
3613             sizeof(ha->fw_seriallink_options24));
3614
3615         /* save HBA serial number */
3616         ha->serial0 = icb->port_name[5];
3617         ha->serial1 = icb->port_name[6];
3618         ha->serial2 = icb->port_name[7];
3619         ha->node_name = icb->node_name;
3620         ha->port_name = icb->port_name;
3621
3622         icb->execution_throttle = __constant_cpu_to_le16(0xFFFF);
3623
3624         ha->retry_count = le16_to_cpu(nv->login_retry_count);
3625
3626         /* Set minimum login_timeout to 4 seconds. */
3627         if (le16_to_cpu(nv->login_timeout) < ql2xlogintimeout)
3628                 nv->login_timeout = cpu_to_le16(ql2xlogintimeout);
3629         if (le16_to_cpu(nv->login_timeout) < 4)
3630                 nv->login_timeout = __constant_cpu_to_le16(4);
3631         ha->login_timeout = le16_to_cpu(nv->login_timeout);
3632         icb->login_timeout = cpu_to_le16(nv->login_timeout);
3633
3634         /* Set minimum RATOV to 200 tenths of a second. */
3635         ha->r_a_tov = 200;
3636
3637         ha->loop_reset_delay = nv->reset_delay;
3638
3639         /* Link Down Timeout = 0:
3640          *
3641          *      When Port Down timer expires we will start returning
3642          *      I/O's to OS with "DID_NO_CONNECT".
3643          *
3644          * Link Down Timeout != 0:
3645          *
3646          *       The driver waits for the link to come up after link down
3647          *       before returning I/Os to OS with "DID_NO_CONNECT".
3648          */
3649         if (le16_to_cpu(nv->link_down_timeout) == 0) {
3650                 ha->loop_down_abort_time =
3651                     (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
3652         } else {
3653                 ha->link_down_timeout = le16_to_cpu(nv->link_down_timeout);
3654                 ha->loop_down_abort_time =
3655                     (LOOP_DOWN_TIME - ha->link_down_timeout);
3656         }
3657
3658         /* Need enough time to try and get the port back. */
3659         ha->port_down_retry_count = le16_to_cpu(nv->port_down_retry_count);
3660         if (qlport_down_retry)
3661                 ha->port_down_retry_count = qlport_down_retry;
3662
3663         /* Set login_retry_count */
3664         ha->login_retry_count  = le16_to_cpu(nv->login_retry_count);
3665         if (ha->port_down_retry_count ==
3666             le16_to_cpu(nv->port_down_retry_count) &&
3667             ha->port_down_retry_count > 3)
3668                 ha->login_retry_count = ha->port_down_retry_count;
3669         else if (ha->port_down_retry_count > (int)ha->login_retry_count)
3670                 ha->login_retry_count = ha->port_down_retry_count;
3671         if (ql2xloginretrycount)
3672                 ha->login_retry_count = ql2xloginretrycount;
3673
3674         /* Enable ZIO. */
3675         if (!ha->flags.init_done) {
3676                 ha->zio_mode = le32_to_cpu(icb->firmware_options_2) &
3677                     (BIT_3 | BIT_2 | BIT_1 | BIT_0);
3678                 ha->zio_timer = le16_to_cpu(icb->interrupt_delay_timer) ?
3679                     le16_to_cpu(icb->interrupt_delay_timer): 2;
3680         }
3681         icb->firmware_options_2 &= __constant_cpu_to_le32(
3682             ~(BIT_3 | BIT_2 | BIT_1 | BIT_0));
3683         ha->flags.process_response_queue = 0;
3684         if (ha->zio_mode != QLA_ZIO_DISABLED) {
3685                 ha->zio_mode = QLA_ZIO_MODE_6;
3686
3687                 DEBUG2(printk("scsi(%ld): ZIO mode %d enabled; timer delay "
3688                     "(%d us).\n", ha->host_no, ha->zio_mode,
3689                     ha->zio_timer * 100));
3690                 qla_printk(KERN_INFO, ha,
3691                     "ZIO mode %d enabled; timer delay (%d us).\n",
3692                     ha->zio_mode, ha->zio_timer * 100);
3693
3694                 icb->firmware_options_2 |= cpu_to_le32(
3695                     (uint32_t)ha->zio_mode);
3696                 icb->interrupt_delay_timer = cpu_to_le16(ha->zio_timer);
3697                 ha->flags.process_response_queue = 1;
3698         }
3699
3700         if (rval) {
3701                 DEBUG2_3(printk(KERN_WARNING
3702                     "scsi(%ld): NVRAM configuration failed!\n", ha->host_no));
3703         }
3704         return (rval);
3705 }
3706
3707 static int
3708 qla24xx_load_risc_flash(scsi_qla_host_t *ha, uint32_t *srisc_addr)
3709 {
3710         int     rval;
3711         int     segments, fragment;
3712         uint32_t faddr;
3713         uint32_t *dcode, dlen;
3714         uint32_t risc_addr;
3715         uint32_t risc_size;
3716         uint32_t i;
3717
3718         rval = QLA_SUCCESS;
3719
3720         segments = FA_RISC_CODE_SEGMENTS;
3721         faddr = FA_RISC_CODE_ADDR;
3722         dcode = (uint32_t *)ha->request_ring;
3723         *srisc_addr = 0;
3724
3725         /* Validate firmware image by checking version. */
3726         qla24xx_read_flash_data(ha, dcode, faddr + 4, 4);
3727         for (i = 0; i < 4; i++)
3728                 dcode[i] = be32_to_cpu(dcode[i]);
3729         if ((dcode[0] == 0xffffffff && dcode[1] == 0xffffffff &&
3730             dcode[2] == 0xffffffff && dcode[3] == 0xffffffff) ||
3731             (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
3732                 dcode[3] == 0)) {
3733                 qla_printk(KERN_WARNING, ha,
3734                     "Unable to verify integrity of flash firmware image!\n");
3735                 qla_printk(KERN_WARNING, ha,
3736                     "Firmware data: %08x %08x %08x %08x!\n", dcode[0],
3737                     dcode[1], dcode[2], dcode[3]);
3738
3739                 return QLA_FUNCTION_FAILED;
3740         }
3741
3742         while (segments && rval == QLA_SUCCESS) {
3743                 /* Read segment's load information. */
3744                 qla24xx_read_flash_data(ha, dcode, faddr, 4);
3745
3746                 risc_addr = be32_to_cpu(dcode[2]);
3747                 *srisc_addr = *srisc_addr == 0 ? risc_addr : *srisc_addr;
3748                 risc_size = be32_to_cpu(dcode[3]);
3749
3750                 fragment = 0;
3751                 while (risc_size > 0 && rval == QLA_SUCCESS) {
3752                         dlen = (uint32_t)(ha->fw_transfer_size >> 2);
3753                         if (dlen > risc_size)
3754                                 dlen = risc_size;
3755
3756                         DEBUG7(printk("scsi(%ld): Loading risc segment@ risc "
3757                             "addr %x, number of dwords 0x%x, offset 0x%x.\n",
3758                             ha->host_no, risc_addr, dlen, faddr));
3759
3760                         qla24xx_read_flash_data(ha, dcode, faddr, dlen);
3761                         for (i = 0; i < dlen; i++)
3762                                 dcode[i] = swab32(dcode[i]);
3763
3764                         rval = qla2x00_load_ram(ha, ha->request_dma, risc_addr,
3765                             dlen);
3766                         if (rval) {
3767                                 DEBUG(printk("scsi(%ld):[ERROR] Failed to load "
3768                                     "segment %d of firmware\n", ha->host_no,
3769                                     fragment));
3770                                 qla_printk(KERN_WARNING, ha,
3771                                     "[ERROR] Failed to load segment %d of "
3772                                     "firmware\n", fragment);
3773                                 break;
3774                         }
3775
3776                         faddr += dlen;
3777                         risc_addr += dlen;
3778                         risc_size -= dlen;
3779                         fragment++;
3780                 }
3781
3782                 /* Next segment. */
3783                 segments--;
3784         }
3785
3786         return rval;
3787 }
3788
3789 #define QLA_FW_URL "ftp://ftp.qlogic.com/outgoing/linux/firmware/"
3790
3791 int
3792 qla2x00_load_risc(scsi_qla_host_t *ha, uint32_t *srisc_addr)
3793 {
3794         int     rval;
3795         int     i, fragment;
3796         uint16_t *wcode, *fwcode;
3797         uint32_t risc_addr, risc_size, fwclen, wlen, *seg;
3798         struct fw_blob *blob;
3799
3800         /* Load firmware blob. */
3801         blob = qla2x00_request_firmware(ha);
3802         if (!blob) {
3803                 qla_printk(KERN_ERR, ha, "Firmware image unavailable.\n");
3804                 qla_printk(KERN_ERR, ha, "Firmware images can be retrieved "
3805                     "from: " QLA_FW_URL ".\n");
3806                 return QLA_FUNCTION_FAILED;
3807         }
3808
3809         rval = QLA_SUCCESS;
3810
3811         wcode = (uint16_t *)ha->request_ring;
3812         *srisc_addr = 0;
3813         fwcode = (uint16_t *)blob->fw->data;
3814         fwclen = 0;
3815
3816         /* Validate firmware image by checking version. */
3817         if (blob->fw->size < 8 * sizeof(uint16_t)) {
3818                 qla_printk(KERN_WARNING, ha,
3819                     "Unable to verify integrity of firmware image (%Zd)!\n",
3820                     blob->fw->size);
3821                 goto fail_fw_integrity;
3822         }
3823         for (i = 0; i < 4; i++)
3824                 wcode[i] = be16_to_cpu(fwcode[i + 4]);
3825         if ((wcode[0] == 0xffff && wcode[1] == 0xffff && wcode[2] == 0xffff &&
3826             wcode[3] == 0xffff) || (wcode[0] == 0 && wcode[1] == 0 &&
3827                 wcode[2] == 0 && wcode[3] == 0)) {
3828                 qla_printk(KERN_WARNING, ha,
3829                     "Unable to verify integrity of firmware image!\n");
3830                 qla_printk(KERN_WARNING, ha,
3831                     "Firmware data: %04x %04x %04x %04x!\n", wcode[0],
3832                     wcode[1], wcode[2], wcode[3]);
3833                 goto fail_fw_integrity;
3834         }
3835
3836         seg = blob->segs;
3837         while (*seg && rval == QLA_SUCCESS) {
3838                 risc_addr = *seg;
3839                 *srisc_addr = *srisc_addr == 0 ? *seg : *srisc_addr;
3840                 risc_size = be16_to_cpu(fwcode[3]);
3841
3842                 /* Validate firmware image size. */
3843                 fwclen += risc_size * sizeof(uint16_t);
3844                 if (blob->fw->size < fwclen) {
3845                         qla_printk(KERN_WARNING, ha,
3846                             "Unable to verify integrity of firmware image "
3847                             "(%Zd)!\n", blob->fw->size);
3848                         goto fail_fw_integrity;
3849                 }
3850
3851                 fragment = 0;
3852                 while (risc_size > 0 && rval == QLA_SUCCESS) {
3853                         wlen = (uint16_t)(ha->fw_transfer_size >> 1);
3854                         if (wlen > risc_size)
3855                                 wlen = risc_size;
3856
3857                         DEBUG7(printk("scsi(%ld): Loading risc segment@ risc "
3858                             "addr %x, number of words 0x%x.\n", ha->host_no,
3859                             risc_addr, wlen));
3860
3861                         for (i = 0; i < wlen; i++)
3862                                 wcode[i] = swab16(fwcode[i]);
3863
3864                         rval = qla2x00_load_ram(ha, ha->request_dma, risc_addr,
3865                             wlen);
3866                         if (rval) {
3867                                 DEBUG(printk("scsi(%ld):[ERROR] Failed to load "
3868                                     "segment %d of firmware\n", ha->host_no,
3869                                     fragment));
3870                                 qla_printk(KERN_WARNING, ha,
3871                                     "[ERROR] Failed to load segment %d of "
3872                                     "firmware\n", fragment);
3873                                 break;
3874                         }
3875
3876                         fwcode += wlen;
3877                         risc_addr += wlen;
3878                         risc_size -= wlen;
3879                         fragment++;
3880                 }
3881
3882                 /* Next segment. */
3883                 seg++;
3884         }
3885         return rval;
3886
3887 fail_fw_integrity:
3888         return QLA_FUNCTION_FAILED;
3889 }
3890
3891 int
3892 qla24xx_load_risc(scsi_qla_host_t *ha, uint32_t *srisc_addr)
3893 {
3894         int     rval;
3895         int     segments, fragment;
3896         uint32_t *dcode, dlen;
3897         uint32_t risc_addr;
3898         uint32_t risc_size;
3899         uint32_t i;
3900         struct fw_blob *blob;
3901         uint32_t *fwcode, fwclen;
3902
3903         /* Load firmware blob. */
3904         blob = qla2x00_request_firmware(ha);
3905         if (!blob) {
3906                 qla_printk(KERN_ERR, ha, "Firmware image unavailable.\n");
3907                 qla_printk(KERN_ERR, ha, "Firmware images can be retrieved "
3908                     "from: " QLA_FW_URL ".\n");
3909
3910                 /* Try to load RISC code from flash. */
3911                 qla_printk(KERN_ERR, ha, "Attempting to load (potentially "
3912                     "outdated) firmware from flash.\n");
3913                 return qla24xx_load_risc_flash(ha, srisc_addr);
3914         }
3915
3916         rval = QLA_SUCCESS;
3917
3918         segments = FA_RISC_CODE_SEGMENTS;
3919         dcode = (uint32_t *)ha->request_ring;
3920         *srisc_addr = 0;
3921         fwcode = (uint32_t *)blob->fw->data;
3922         fwclen = 0;
3923
3924         /* Validate firmware image by checking version. */
3925         if (blob->fw->size < 8 * sizeof(uint32_t)) {
3926                 qla_printk(KERN_WARNING, ha,
3927                     "Unable to verify integrity of firmware image (%Zd)!\n",
3928                     blob->fw->size);
3929                 goto fail_fw_integrity;
3930         }
3931         for (i = 0; i < 4; i++)
3932                 dcode[i] = be32_to_cpu(fwcode[i + 4]);
3933         if ((dcode[0] == 0xffffffff && dcode[1] == 0xffffffff &&
3934             dcode[2] == 0xffffffff && dcode[3] == 0xffffffff) ||
3935             (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
3936                 dcode[3] == 0)) {
3937                 qla_printk(KERN_WARNING, ha,
3938                     "Unable to verify integrity of firmware image!\n");
3939                 qla_printk(KERN_WARNING, ha,
3940                     "Firmware data: %08x %08x %08x %08x!\n", dcode[0],
3941                     dcode[1], dcode[2], dcode[3]);
3942                 goto fail_fw_integrity;
3943         }
3944
3945         while (segments && rval == QLA_SUCCESS) {
3946                 risc_addr = be32_to_cpu(fwcode[2]);
3947                 *srisc_addr = *srisc_addr == 0 ? risc_addr : *srisc_addr;
3948                 risc_size = be32_to_cpu(fwcode[3]);
3949
3950                 /* Validate firmware image size. */
3951                 fwclen += risc_size * sizeof(uint32_t);
3952                 if (blob->fw->size < fwclen) {
3953                         qla_printk(KERN_WARNING, ha,
3954                             "Unable to verify integrity of firmware image "
3955                             "(%Zd)!\n", blob->fw->size);
3956
3957                         goto fail_fw_integrity;
3958                 }
3959
3960                 fragment = 0;
3961                 while (risc_size > 0 && rval == QLA_SUCCESS) {
3962                         dlen = (uint32_t)(ha->fw_transfer_size >> 2);
3963                         if (dlen > risc_size)
3964                                 dlen = risc_size;
3965
3966                         DEBUG7(printk("scsi(%ld): Loading risc segment@ risc "
3967                             "addr %x, number of dwords 0x%x.\n", ha->host_no,
3968                             risc_addr, dlen));
3969
3970                         for (i = 0; i < dlen; i++)
3971                                 dcode[i] = swab32(fwcode[i]);
3972
3973                         rval = qla2x00_load_ram(ha, ha->request_dma, risc_addr,
3974                             dlen);
3975                         if (rval) {
3976                                 DEBUG(printk("scsi(%ld):[ERROR] Failed to load "
3977                                     "segment %d of firmware\n", ha->host_no,
3978                                     fragment));
3979                                 qla_printk(KERN_WARNING, ha,
3980                                     "[ERROR] Failed to load segment %d of "
3981                                     "firmware\n", fragment);
3982                                 break;
3983                         }
3984
3985                         fwcode += dlen;
3986                         risc_addr += dlen;
3987                         risc_size -= dlen;
3988                         fragment++;
3989                 }
3990
3991                 /* Next segment. */
3992                 segments--;
3993         }
3994         return rval;
3995
3996 fail_fw_integrity:
3997         return QLA_FUNCTION_FAILED;
3998 }
3999
4000 void
4001 qla2x00_try_to_stop_firmware(scsi_qla_host_t *ha)
4002 {
4003         int ret, retries;
4004
4005         if (!IS_FWI2_CAPABLE(ha))
4006                 return;
4007         if (!ha->fw_major_version)
4008                 return;
4009
4010         ret = qla2x00_stop_firmware(ha);
4011         for (retries = 5; ret != QLA_SUCCESS && retries ; retries--) {
4012                 qla2x00_reset_chip(ha);
4013                 if (qla2x00_chip_diag(ha) != QLA_SUCCESS)
4014                         continue;
4015                 if (qla2x00_setup_chip(ha) != QLA_SUCCESS)
4016                         continue;
4017                 qla_printk(KERN_INFO, ha,
4018                     "Attempting retry of stop-firmware command...\n");
4019                 ret = qla2x00_stop_firmware(ha);
4020         }
4021 }
4022
4023 int
4024 qla24xx_configure_vhba(scsi_qla_host_t *ha)
4025 {
4026         int rval = QLA_SUCCESS;
4027         uint16_t mb[MAILBOX_REGISTER_COUNT];
4028
4029         if (!ha->parent)
4030                 return -EINVAL;
4031
4032         rval = qla2x00_fw_ready(ha);
4033         if (rval == QLA_SUCCESS) {
4034                 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
4035                 qla2x00_marker(ha, 0, 0, MK_SYNC_ALL);
4036         }
4037
4038         ha->flags.management_server_logged_in = 0;
4039
4040         /* Login to SNS first */
4041         qla24xx_login_fabric(ha, NPH_SNS, 0xff, 0xff, 0xfc,
4042             mb, BIT_1);
4043         if (mb[0] != MBS_COMMAND_COMPLETE) {
4044                 DEBUG15(qla_printk(KERN_INFO, ha,
4045                     "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x "
4046                     "mb[2]=%x mb[6]=%x mb[7]=%x\n", NPH_SNS,
4047                     mb[0], mb[1], mb[2], mb[6], mb[7]));
4048                 return (QLA_FUNCTION_FAILED);
4049         }
4050
4051         atomic_set(&ha->loop_down_timer, 0);
4052         atomic_set(&ha->loop_state, LOOP_UP);
4053         set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
4054         set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
4055         rval = qla2x00_loop_resync(ha);
4056
4057         return rval;
4058 }