err.no Git - linux-2.6/blob - 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 #include <asm/pbm.h>
  17 #endif
  18
  19 /* XXX(hch): this is ugly, but we don't want to pull in exioctl.h */
  20 #ifndef EXT_IS_LUN_BIT_SET
  21 #define EXT_IS_LUN_BIT_SET(P,L) \
  22     (((P)->mask[L/8] & (0x80 >> (L%8)))?1:0)
  23 #define EXT_SET_LUN_BIT(P,L) \
  24     ((P)->mask[L/8] |= (0x80 >> (L%8)))
  25 #endif
  26
  27 /*
  28 *  QLogic ISP2x00 Hardware Support Function Prototypes.
  29 */
  30 static int qla2x00_isp_firmware(scsi_qla_host_t *);
  31 static void qla2x00_resize_request_q(scsi_qla_host_t *);
  32 static int qla2x00_setup_chip(scsi_qla_host_t *);
  33 static void qla2x00_init_response_q_entries(scsi_qla_host_t *);
  34 static int qla2x00_init_rings(scsi_qla_host_t *);
  35 static int qla2x00_fw_ready(scsi_qla_host_t *);
  36 static int qla2x00_configure_hba(scsi_qla_host_t *);
  37 static int qla2x00_configure_loop(scsi_qla_host_t *);
  38 static int qla2x00_configure_local_loop(scsi_qla_host_t *);
  39 static int qla2x00_configure_fabric(scsi_qla_host_t *);
  40 static int qla2x00_find_all_fabric_devs(scsi_qla_host_t *, struct list_head *);
  41 static int qla2x00_device_resync(scsi_qla_host_t *);
  42 static int qla2x00_fabric_dev_login(scsi_qla_host_t *, fc_port_t *,
  43     uint16_t *);
  44
  45 static int qla2x00_restart_isp(scsi_qla_host_t *);
  46
  47 static int qla2x00_find_new_loop_id(scsi_qla_host_t *ha, fc_port_t *dev);
  48
  49 /****************************************************************************/
  50 /*                QLogic ISP2x00 Hardware Support Functions.                */
  51 /****************************************************************************/
  52
  53 /*
  54 * qla2x00_initialize_adapter
  55 *      Initialize board.
  56 *
  57 * Input:
  58 *      ha = adapter block pointer.
  59 *
  60 * Returns:
  61 *      0 = success
  62 */
  63 int
  64 qla2x00_initialize_adapter(scsi_qla_host_t *ha)
  65 {
  66         int     rval;
  67
  68         /* Clear adapter flags. */
  69         ha->flags.online = 0;
  70         ha->flags.reset_active = 0;
  71         atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
  72         atomic_set(&ha->loop_state, LOOP_DOWN);
  73         ha->device_flags = DFLG_NO_CABLE;
  74         ha->dpc_flags = 0;
  75         ha->flags.management_server_logged_in = 0;
  76         ha->marker_needed = 0;
  77         ha->mbx_flags = 0;
  78         ha->isp_abort_cnt = 0;
  79         ha->beacon_blink_led = 0;
  80         set_bit(REGISTER_FDMI_NEEDED, &ha->dpc_flags);
  81
  82         qla_printk(KERN_INFO, ha, "Configuring PCI space...\n");
  83         rval = ha->isp_ops.pci_config(ha);
  84         if (rval) {
  85                 DEBUG2(printk("scsi(%ld): Unable to configure PCI space.\n",
  86                     ha->host_no));
  87                 return (rval);
  88         }
  89
  90         ha->isp_ops.reset_chip(ha);
  91
  92         ha->isp_ops.get_flash_version(ha, ha->request_ring);
  93
  94         qla_printk(KERN_INFO, ha, "Configure NVRAM parameters...\n");
  95
  96         ha->isp_ops.nvram_config(ha);
  97
  98         if (ha->flags.disable_serdes) {
  99                 /* Mask HBA via NVRAM settings? */
 100                 qla_printk(KERN_INFO, ha, "Masking HBA WWPN "
 101                     "%02x%02x%02x%02x%02x%02x%02x%02x (via NVRAM).\n",
 102                     ha->port_name[0], ha->port_name[1],
 103                     ha->port_name[2], ha->port_name[3],
 104                     ha->port_name[4], ha->port_name[5],
 105                     ha->port_name[6], ha->port_name[7]);
 106                 return QLA_FUNCTION_FAILED;
 107         }
 108
 109         qla_printk(KERN_INFO, ha, "Verifying loaded RISC code...\n");
 110
 111         if (qla2x00_isp_firmware(ha) != QLA_SUCCESS) {
 112                 rval = ha->isp_ops.chip_diag(ha);
 113                 if (rval)
 114                         return (rval);
 115                 rval = qla2x00_setup_chip(ha);
 116                 if (rval)
 117                         return (rval);
 118         }
 119         rval = qla2x00_init_rings(ha);
 120
 121         return (rval);
 122 }
 123
 124 /**
 125  * qla2100_pci_config() - Setup ISP21xx PCI configuration registers.
 126  * @ha: HA context
 127  *
 128  * Returns 0 on success.
 129  */
 130 int
 131 qla2100_pci_config(scsi_qla_host_t *ha)
 132 {
 133         int ret;
 134         uint16_t w;
 135         uint32_t d;
 136         unsigned long flags;
 137         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 138
 139         pci_set_master(ha->pdev);
 140         ret = pci_set_mwi(ha->pdev);
 141
 142         pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
 143         w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
 144         pci_write_config_word(ha->pdev, PCI_COMMAND, w);
 145
 146         /* Reset expansion ROM address decode enable */
 147         pci_read_config_dword(ha->pdev, PCI_ROM_ADDRESS, &d);
 148         d &= ~PCI_ROM_ADDRESS_ENABLE;
 149         pci_write_config_dword(ha->pdev, PCI_ROM_ADDRESS, d);
 150
 151         /* Get PCI bus information. */
 152         spin_lock_irqsave(&ha->hardware_lock, flags);
 153         ha->pci_attr = RD_REG_WORD(&reg->ctrl_status);
 154         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 155
 156         return QLA_SUCCESS;
 157 }
 158
 159 /**
 160  * qla2300_pci_config() - Setup ISP23xx PCI configuration registers.
 161  * @ha: HA context
 162  *
 163  * Returns 0 on success.
 164  */
 165 int
 166 qla2300_pci_config(scsi_qla_host_t *ha)
 167 {
 168         int             ret;
 169         uint16_t        w;
 170         uint32_t        d;
 171         unsigned long   flags = 0;
 172         uint32_t        cnt;
 173         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 174
 175         pci_set_master(ha->pdev);
 176         ret = pci_set_mwi(ha->pdev);
 177
 178         pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
 179         w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
 180
 181         if (IS_QLA2322(ha) || IS_QLA6322(ha))
 182                 w &= ~PCI_COMMAND_INTX_DISABLE;
 183         pci_write_config_word(ha->pdev, PCI_COMMAND, w);
 184
 185         /*
 186          * If this is a 2300 card and not 2312, reset the
 187          * COMMAND_INVALIDATE due to a bug in the 2300. Unfortunately,
 188          * the 2310 also reports itself as a 2300 so we need to get the
 189          * fb revision level -- a 6 indicates it really is a 2300 and
 190          * not a 2310.
 191          */
 192         if (IS_QLA2300(ha)) {
 193                 spin_lock_irqsave(&ha->hardware_lock, flags);
 194
 195                 /* Pause RISC. */
 196                 WRT_REG_WORD(&reg->hccr, HCCR_PAUSE_RISC);
 197                 for (cnt = 0; cnt < 30000; cnt++) {
 198                         if ((RD_REG_WORD(&reg->hccr) & HCCR_RISC_PAUSE) != 0)
 199                                 break;
 200
 201                         udelay(10);
 202                 }
 203
 204                 /* Select FPM registers. */
 205                 WRT_REG_WORD(&reg->ctrl_status, 0x20);
 206                 RD_REG_WORD(&reg->ctrl_status);
 207
 208                 /* Get the fb rev level */
 209                 ha->fb_rev = RD_FB_CMD_REG(ha, reg);
 210
 211                 if (ha->fb_rev == FPM_2300)
 212                         pci_clear_mwi(ha->pdev);
 213
 214                 /* Deselect FPM registers. */
 215                 WRT_REG_WORD(&reg->ctrl_status, 0x0);
 216                 RD_REG_WORD(&reg->ctrl_status);
 217
 218                 /* Release RISC module. */
 219                 WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
 220                 for (cnt = 0; cnt < 30000; cnt++) {
 221                         if ((RD_REG_WORD(&reg->hccr) & HCCR_RISC_PAUSE) == 0)
 222                                 break;
 223
 224                         udelay(10);
 225                 }
 226
 227                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 228         }
 229
 230         pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);
 231
 232         /* Reset expansion ROM address decode enable */
 233         pci_read_config_dword(ha->pdev, PCI_ROM_ADDRESS, &d);
 234         d &= ~PCI_ROM_ADDRESS_ENABLE;
 235         pci_write_config_dword(ha->pdev, PCI_ROM_ADDRESS, d);
 236
 237         /* Get PCI bus information. */
 238         spin_lock_irqsave(&ha->hardware_lock, flags);
 239         ha->pci_attr = RD_REG_WORD(&reg->ctrl_status);
 240         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 241
 242         return QLA_SUCCESS;
 243 }
 244
 245 /**
 246  * qla24xx_pci_config() - Setup ISP24xx PCI configuration registers.
 247  * @ha: HA context
 248  *
 249  * Returns 0 on success.
 250  */
 251 int
 252 qla24xx_pci_config(scsi_qla_host_t *ha)
 253 {
 254         int ret;
 255         uint16_t w;
 256         uint32_t d;
 257         unsigned long flags = 0;
 258         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
 259         int pcix_cmd_reg, pcie_dctl_reg;
 260
 261         pci_set_master(ha->pdev);
 262         ret = pci_set_mwi(ha->pdev);
 263
 264         pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
 265         w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
 266         w &= ~PCI_COMMAND_INTX_DISABLE;
 267         pci_write_config_word(ha->pdev, PCI_COMMAND, w);
 268
 269         pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);
 270
 271         /* PCI-X -- adjust Maximum Memory Read Byte Count (2048). */
 272         pcix_cmd_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_PCIX);
 273         if (pcix_cmd_reg) {
 274                 uint16_t pcix_cmd;
 275
 276                 pcix_cmd_reg += PCI_X_CMD;
 277                 pci_read_config_word(ha->pdev, pcix_cmd_reg, &pcix_cmd);
 278                 pcix_cmd &= ~PCI_X_CMD_MAX_READ;
 279                 pcix_cmd |= 0x0008;
 280                 pci_write_config_word(ha->pdev, pcix_cmd_reg, pcix_cmd);
 281         }
 282
 283         /* PCIe -- adjust Maximum Read Request Size (2048). */
 284         pcie_dctl_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
 285         if (pcie_dctl_reg) {
 286                 uint16_t pcie_dctl;
 287
 288                 pcie_dctl_reg += PCI_EXP_DEVCTL;
 289                 pci_read_config_word(ha->pdev, pcie_dctl_reg, &pcie_dctl);
 290                 pcie_dctl &= ~PCI_EXP_DEVCTL_READRQ;
 291                 pcie_dctl |= 0x4000;
 292                 pci_write_config_word(ha->pdev, pcie_dctl_reg, pcie_dctl);
 293         }
 294
 295         /* Reset expansion ROM address decode enable */
 296         pci_read_config_dword(ha->pdev, PCI_ROM_ADDRESS, &d);
 297         d &= ~PCI_ROM_ADDRESS_ENABLE;
 298         pci_write_config_dword(ha->pdev, PCI_ROM_ADDRESS, d);
 299
 300         pci_read_config_word(ha->pdev, PCI_REVISION_ID, &ha->chip_revision);
 301
 302         /* Get PCI bus information. */
 303         spin_lock_irqsave(&ha->hardware_lock, flags);
 304         ha->pci_attr = RD_REG_DWORD(&reg->ctrl_status);
 305         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 306
 307         return QLA_SUCCESS;
 308 }
 309
 310 /**
 311  * qla2x00_isp_firmware() - Choose firmware image.
 312  * @ha: HA context
 313  *
 314  * Returns 0 on success.
 315  */
 316 static int
 317 qla2x00_isp_firmware(scsi_qla_host_t *ha)
 318 {
 319         int  rval;
 320
 321         /* Assume loading risc code */
 322         rval = QLA_FUNCTION_FAILED;
 323
 324         if (ha->flags.disable_risc_code_load) {
 325                 DEBUG2(printk("scsi(%ld): RISC CODE NOT loaded\n",
 326                     ha->host_no));
 327                 qla_printk(KERN_INFO, ha, "RISC CODE NOT loaded\n");
 328
 329                 /* Verify checksum of loaded RISC code. */
 330                 rval = qla2x00_verify_checksum(ha, ha->fw_srisc_address);
 331         }
 332
 333         if (rval) {
 334                 DEBUG2_3(printk("scsi(%ld): **** Load RISC code ****\n",
 335                     ha->host_no));
 336         }
 337
 338         return (rval);
 339 }
 340
 341 /**
 342  * qla2x00_reset_chip() - Reset ISP chip.
 343  * @ha: HA context
 344  *
 345  * Returns 0 on success.
 346  */
 347 void
 348 qla2x00_reset_chip(scsi_qla_host_t *ha)
 349 {
 350         unsigned long   flags = 0;
 351         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 352         uint32_t        cnt;
 353         uint16_t        cmd;
 354
 355         ha->isp_ops.disable_intrs(ha);
 356
 357         spin_lock_irqsave(&ha->hardware_lock, flags);
 358
 359         /* Turn off master enable */
 360         cmd = 0;
 361         pci_read_config_word(ha->pdev, PCI_COMMAND, &cmd);
 362         cmd &= ~PCI_COMMAND_MASTER;
 363         pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
 364
 365         if (!IS_QLA2100(ha)) {
 366                 /* Pause RISC. */
 367                 WRT_REG_WORD(&reg->hccr, HCCR_PAUSE_RISC);
 368                 if (IS_QLA2200(ha) || IS_QLA2300(ha)) {
 369                         for (cnt = 0; cnt < 30000; cnt++) {
 370                                 if ((RD_REG_WORD(&reg->hccr) &
 371                                     HCCR_RISC_PAUSE) != 0)
 372                                         break;
 373                                 udelay(100);
 374                         }
 375                 } else {
 376                         RD_REG_WORD(&reg->hccr);        /* PCI Posting. */
 377                         udelay(10);
 378                 }
 379
 380                 /* Select FPM registers. */
 381                 WRT_REG_WORD(&reg->ctrl_status, 0x20);
 382                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
 383
 384                 /* FPM Soft Reset. */
 385                 WRT_REG_WORD(&reg->fpm_diag_config, 0x100);
 386                 RD_REG_WORD(&reg->fpm_diag_config);     /* PCI Posting. */
 387
 388                 /* Toggle Fpm Reset. */
 389                 if (!IS_QLA2200(ha)) {
 390                         WRT_REG_WORD(&reg->fpm_diag_config, 0x0);
 391                         RD_REG_WORD(&reg->fpm_diag_config); /* PCI Posting. */
 392                 }
 393
 394                 /* Select frame buffer registers. */
 395                 WRT_REG_WORD(&reg->ctrl_status, 0x10);
 396                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
 397
 398                 /* Reset frame buffer FIFOs. */
 399                 if (IS_QLA2200(ha)) {
 400                         WRT_FB_CMD_REG(ha, reg, 0xa000);
 401                         RD_FB_CMD_REG(ha, reg);         /* PCI Posting. */
 402                 } else {
 403                         WRT_FB_CMD_REG(ha, reg, 0x00fc);
 404
 405                         /* Read back fb_cmd until zero or 3 seconds max */
 406                         for (cnt = 0; cnt < 3000; cnt++) {
 407                                 if ((RD_FB_CMD_REG(ha, reg) & 0xff) == 0)
 408                                         break;
 409                                 udelay(100);
 410                         }
 411                 }
 412
 413                 /* Select RISC module registers. */
 414                 WRT_REG_WORD(&reg->ctrl_status, 0);
 415                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
 416
 417                 /* Reset RISC processor. */
 418                 WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
 419                 RD_REG_WORD(&reg->hccr);                /* PCI Posting. */
 420
 421                 /* Release RISC processor. */
 422                 WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
 423                 RD_REG_WORD(&reg->hccr);                /* PCI Posting. */
 424         }
 425
 426         WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
 427         WRT_REG_WORD(&reg->hccr, HCCR_CLR_HOST_INT);
 428
 429         /* Reset ISP chip. */
 430         WRT_REG_WORD(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
 431
 432         /* Wait for RISC to recover from reset. */
 433         if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
 434                 /*
 435                  * It is necessary to for a delay here since the card doesn't
 436                  * respond to PCI reads during a reset. On some architectures
 437                  * this will result in an MCA.
 438                  */
 439                 udelay(20);
 440                 for (cnt = 30000; cnt; cnt--) {
 441                         if ((RD_REG_WORD(&reg->ctrl_status) &
 442                             CSR_ISP_SOFT_RESET) == 0)
 443                                 break;
 444                         udelay(100);
 445                 }
 446         } else
 447                 udelay(10);
 448
 449         /* Reset RISC processor. */
 450         WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
 451
 452         WRT_REG_WORD(&reg->semaphore, 0);
 453
 454         /* Release RISC processor. */
 455         WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
 456         RD_REG_WORD(&reg->hccr);                        /* PCI Posting. */
 457
 458         if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
 459                 for (cnt = 0; cnt < 30000; cnt++) {
 460                         if (RD_MAILBOX_REG(ha, reg, 0) != MBS_BUSY)
 461                                 break;
 462
 463                         udelay(100);
 464                 }
 465         } else
 466                 udelay(100);
 467
 468         /* Turn on master enable */
 469         cmd |= PCI_COMMAND_MASTER;
 470         pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
 471
 472         /* Disable RISC pause on FPM parity error. */
 473         if (!IS_QLA2100(ha)) {
 474                 WRT_REG_WORD(&reg->hccr, HCCR_DISABLE_PARITY_PAUSE);
 475                 RD_REG_WORD(&reg->hccr);                /* PCI Posting. */
 476         }
 477
 478         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 479 }
 480
 481 /**
 482  * qla24xx_reset_risc() - Perform full reset of ISP24xx RISC.
 483  * @ha: HA context
 484  *
 485  * Returns 0 on success.
 486  */
 487 static inline void
 488 qla24xx_reset_risc(scsi_qla_host_t *ha)
 489 {
 490         unsigned long flags = 0;
 491         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
 492         uint32_t cnt, d2;
 493         uint16_t wd;
 494
 495         spin_lock_irqsave(&ha->hardware_lock, flags);
 496
 497         /* Reset RISC. */
 498         WRT_REG_DWORD(&reg->ctrl_status, CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
 499         for (cnt = 0; cnt < 30000; cnt++) {
 500                 if ((RD_REG_DWORD(&reg->ctrl_status) & CSRX_DMA_ACTIVE) == 0)
 501                         break;
 502
 503                 udelay(10);
 504         }
 505
 506         WRT_REG_DWORD(&reg->ctrl_status,
 507             CSRX_ISP_SOFT_RESET|CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
 508         pci_read_config_word(ha->pdev, PCI_COMMAND, &wd);
 509
 510         udelay(100);
 511         /* Wait for firmware to complete NVRAM accesses. */
 512         d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
 513         for (cnt = 10000 ; cnt && d2; cnt--) {
 514                 udelay(5);
 515                 d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
 516                 barrier();
 517         }
 518
 519         /* Wait for soft-reset to complete. */
 520         d2 = RD_REG_DWORD(&reg->ctrl_status);
 521         for (cnt = 6000000 ; cnt && (d2 & CSRX_ISP_SOFT_RESET); cnt--) {
 522                 udelay(5);
 523                 d2 = RD_REG_DWORD(&reg->ctrl_status);
 524                 barrier();
 525         }
 526
 527         WRT_REG_DWORD(&reg->hccr, HCCRX_SET_RISC_RESET);
 528         RD_REG_DWORD(&reg->hccr);
 529
 530         WRT_REG_DWORD(&reg->hccr, HCCRX_REL_RISC_PAUSE);
 531         RD_REG_DWORD(&reg->hccr);
 532
 533         WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_RESET);
 534         RD_REG_DWORD(&reg->hccr);
 535
 536         d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
 537         for (cnt = 6000000 ; cnt && d2; cnt--) {
 538                 udelay(5);
 539                 d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
 540                 barrier();
 541         }
 542
 543         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 544 }
 545
 546 /**
 547  * qla24xx_reset_chip() - Reset ISP24xx chip.
 548  * @ha: HA context
 549  *
 550  * Returns 0 on success.
 551  */
 552 void
 553 qla24xx_reset_chip(scsi_qla_host_t *ha)
 554 {
 555         ha->isp_ops.disable_intrs(ha);
 556
 557         /* Perform RISC reset. */
 558         qla24xx_reset_risc(ha);
 559 }
 560
 561 /**
 562  * qla2x00_chip_diag() - Test chip for proper operation.
 563  * @ha: HA context
 564  *
 565  * Returns 0 on success.
 566  */
 567 int
 568 qla2x00_chip_diag(scsi_qla_host_t *ha)
 569 {
 570         int             rval;
 571         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 572         unsigned long   flags = 0;
 573         uint16_t        data;
 574         uint32_t        cnt;
 575         uint16_t        mb[5];
 576
 577         /* Assume a failed state */
 578         rval = QLA_FUNCTION_FAILED;
 579
 580         DEBUG3(printk("scsi(%ld): Testing device at %lx.\n",
 581             ha->host_no, (u_long)&reg->flash_address));
 582
 583         spin_lock_irqsave(&ha->hardware_lock, flags);
 584
 585         /* Reset ISP chip. */
 586         WRT_REG_WORD(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
 587
 588         /*
 589          * We need to have a delay here since the card will not respond while
 590          * in reset causing an MCA on some architectures.
 591          */
 592         udelay(20);
 593         data = qla2x00_debounce_register(&reg->ctrl_status);
 594         for (cnt = 6000000 ; cnt && (data & CSR_ISP_SOFT_RESET); cnt--) {
 595                 udelay(5);
 596                 data = RD_REG_WORD(&reg->ctrl_status);
 597                 barrier();
 598         }
 599
 600         if (!cnt)
 601                 goto chip_diag_failed;
 602
 603         DEBUG3(printk("scsi(%ld): Reset register cleared by chip reset\n",
 604             ha->host_no));
 605
 606         /* Reset RISC processor. */
 607         WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
 608         WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
 609
 610         /* Workaround for QLA2312 PCI parity error */
 611         if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
 612                 data = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 0));
 613                 for (cnt = 6000000; cnt && (data == MBS_BUSY); cnt--) {
 614                         udelay(5);
 615                         data = RD_MAILBOX_REG(ha, reg, 0);
 616                         barrier();
 617                 }
 618         } else
 619                 udelay(10);
 620
 621         if (!cnt)
 622                 goto chip_diag_failed;
 623
 624         /* Check product ID of chip */
 625         DEBUG3(printk("scsi(%ld): Checking product ID of chip\n", ha->host_no));
 626
 627         mb[1] = RD_MAILBOX_REG(ha, reg, 1);
 628         mb[2] = RD_MAILBOX_REG(ha, reg, 2);
 629         mb[3] = RD_MAILBOX_REG(ha, reg, 3);
 630         mb[4] = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 4));
 631         if (mb[1] != PROD_ID_1 || (mb[2] != PROD_ID_2 && mb[2] != PROD_ID_2a) ||
 632             mb[3] != PROD_ID_3) {
 633                 qla_printk(KERN_WARNING, ha,
 634                     "Wrong product ID = 0x%x,0x%x,0x%x\n", mb[1], mb[2], mb[3]);
 635
 636                 goto chip_diag_failed;
 637         }
 638         ha->product_id[0] = mb[1];
 639         ha->product_id[1] = mb[2];
 640         ha->product_id[2] = mb[3];
 641         ha->product_id[3] = mb[4];
 642
 643         /* Adjust fw RISC transfer size */
 644         if (ha->request_q_length > 1024)
 645                 ha->fw_transfer_size = REQUEST_ENTRY_SIZE * 1024;
 646         else
 647                 ha->fw_transfer_size = REQUEST_ENTRY_SIZE *
 648                     ha->request_q_length;
 649
 650         if (IS_QLA2200(ha) &&
 651             RD_MAILBOX_REG(ha, reg, 7) == QLA2200A_RISC_ROM_VER) {
 652                 /* Limit firmware transfer size with a 2200A */
 653                 DEBUG3(printk("scsi(%ld): Found QLA2200A chip.\n",
 654                     ha->host_no));
 655
 656                 ha->device_type |= DT_ISP2200A;
 657                 ha->fw_transfer_size = 128;
 658         }
 659
 660         /* Wrap Incoming Mailboxes Test. */
 661         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 662
 663         DEBUG3(printk("scsi(%ld): Checking mailboxes.\n", ha->host_no));
 664         rval = qla2x00_mbx_reg_test(ha);
 665         if (rval) {
 666                 DEBUG(printk("scsi(%ld): Failed mailbox send register test\n",
 667                     ha->host_no));
 668                 qla_printk(KERN_WARNING, ha,
 669                     "Failed mailbox send register test\n");
 670         }
 671         else {
 672                 /* Flag a successful rval */
 673                 rval = QLA_SUCCESS;
 674         }
 675         spin_lock_irqsave(&ha->hardware_lock, flags);
 676
 677 chip_diag_failed:
 678         if (rval)
 679                 DEBUG2_3(printk("scsi(%ld): Chip diagnostics **** FAILED "
 680                     "****\n", ha->host_no));
 681
 682         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 683
 684         return (rval);
 685 }
 686
 687 /**
 688  * qla24xx_chip_diag() - Test ISP24xx for proper operation.
 689  * @ha: HA context
 690  *
 691  * Returns 0 on success.
 692  */
 693 int
 694 qla24xx_chip_diag(scsi_qla_host_t *ha)
 695 {
 696         int rval;
 697
 698         /* Perform RISC reset. */
 699         qla24xx_reset_risc(ha);
 700
 701         ha->fw_transfer_size = REQUEST_ENTRY_SIZE * 1024;
 702
 703         rval = qla2x00_mbx_reg_test(ha);
 704         if (rval) {
 705                 DEBUG(printk("scsi(%ld): Failed mailbox send register test\n",
 706                     ha->host_no));
 707                 qla_printk(KERN_WARNING, ha,
 708                     "Failed mailbox send register test\n");
 709         } else {
 710                 /* Flag a successful rval */
 711                 rval = QLA_SUCCESS;
 712         }
 713
 714         return rval;
 715 }
 716
 717 void
 718 qla2x00_alloc_fw_dump(scsi_qla_host_t *ha)
 719 {
 720         int rval;
 721         uint32_t dump_size, fixed_size, mem_size, req_q_size, rsp_q_size,
 722             eft_size;
 723         dma_addr_t eft_dma;
 724         void *eft;
 725
 726         if (ha->fw_dump) {
 727                 qla_printk(KERN_WARNING, ha,
 728                     "Firmware dump previously allocated.\n");
 729                 return;
 730         }
 731
 732         ha->fw_dumped = 0;
 733         fixed_size = mem_size = eft_size = 0;
 734         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
 735                 fixed_size = sizeof(struct qla2100_fw_dump);
 736         } else if (IS_QLA23XX(ha)) {
 737                 fixed_size = offsetof(struct qla2300_fw_dump, data_ram);
 738                 mem_size = (ha->fw_memory_size - 0x11000 + 1) *
 739                     sizeof(uint16_t);
 740         } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
 741                 fixed_size = offsetof(struct qla24xx_fw_dump, ext_mem);
 742                 mem_size = (ha->fw_memory_size - 0x100000 + 1) *
 743                     sizeof(uint32_t);
 744
 745                 /* Allocate memory for Extended Trace Buffer. */
 746                 eft = dma_alloc_coherent(&ha->pdev->dev, EFT_SIZE, &eft_dma,
 747                     GFP_KERNEL);
 748                 if (!eft) {
 749                         qla_printk(KERN_WARNING, ha, "Unable to allocate "
 750                             "(%d KB) for EFT.\n", EFT_SIZE / 1024);
 751                         goto cont_alloc;
 752                 }
 753
 754                 rval = qla2x00_trace_control(ha, TC_ENABLE, eft_dma,
 755                     EFT_NUM_BUFFERS);
 756                 if (rval) {
 757                         qla_printk(KERN_WARNING, ha, "Unable to initialize "
 758                             "EFT (%d).\n", rval);
 759                         dma_free_coherent(&ha->pdev->dev, EFT_SIZE, eft,
 760                             eft_dma);
 761                         goto cont_alloc;
 762                 }
 763
 764                 qla_printk(KERN_INFO, ha, "Allocated (%d KB) for EFT...\n",
 765                     EFT_SIZE / 1024);
 766
 767                 eft_size = EFT_SIZE;
 768                 memset(eft, 0, eft_size);
 769                 ha->eft_dma = eft_dma;
 770                 ha->eft = eft;
 771         }
 772 cont_alloc:
 773         req_q_size = ha->request_q_length * sizeof(request_t);
 774         rsp_q_size = ha->response_q_length * sizeof(response_t);
 775
 776         dump_size = offsetof(struct qla2xxx_fw_dump, isp);
 777         dump_size += fixed_size + mem_size + req_q_size + rsp_q_size +
 778             eft_size;
 779
 780         ha->fw_dump = vmalloc(dump_size);
 781         if (!ha->fw_dump) {
 782                 qla_printk(KERN_WARNING, ha, "Unable to allocate (%d KB) for "
 783                     "firmware dump!!!\n", dump_size / 1024);
 784
 785                 if (ha->eft) {
 786                         dma_free_coherent(&ha->pdev->dev, eft_size, ha->eft,
 787                             ha->eft_dma);
 788                         ha->eft = NULL;
 789                         ha->eft_dma = 0;
 790                 }
 791                 return;
 792         }
 793
 794         qla_printk(KERN_INFO, ha, "Allocated (%d KB) for firmware dump...\n",
 795             dump_size / 1024);
 796
 797         ha->fw_dump_len = dump_size;
 798         ha->fw_dump->signature[0] = 'Q';
 799         ha->fw_dump->signature[1] = 'L';
 800         ha->fw_dump->signature[2] = 'G';
 801         ha->fw_dump->signature[3] = 'C';
 802         ha->fw_dump->version = __constant_htonl(1);
 803
 804         ha->fw_dump->fixed_size = htonl(fixed_size);
 805         ha->fw_dump->mem_size = htonl(mem_size);
 806         ha->fw_dump->req_q_size = htonl(req_q_size);
 807         ha->fw_dump->rsp_q_size = htonl(rsp_q_size);
 808
 809         ha->fw_dump->eft_size = htonl(eft_size);
 810         ha->fw_dump->eft_addr_l = htonl(LSD(ha->eft_dma));
 811         ha->fw_dump->eft_addr_h = htonl(MSD(ha->eft_dma));
 812
 813         ha->fw_dump->header_size =
 814             htonl(offsetof(struct qla2xxx_fw_dump, isp));
 815 }
 816
 817 /**
 818  * qla2x00_resize_request_q() - Resize request queue given available ISP memory.
 819  * @ha: HA context
 820  *
 821  * Returns 0 on success.
 822  */
 823 static void
 824 qla2x00_resize_request_q(scsi_qla_host_t *ha)
 825 {
 826         int rval;
 827         uint16_t fw_iocb_cnt = 0;
 828         uint16_t request_q_length = REQUEST_ENTRY_CNT_2XXX_EXT_MEM;
 829         dma_addr_t request_dma;
 830         request_t *request_ring;
 831
 832         /* Valid only on recent ISPs. */
 833         if (IS_QLA2100(ha) || IS_QLA2200(ha))
 834                 return;
 835
 836         /* Retrieve IOCB counts available to the firmware. */
 837         rval = qla2x00_get_resource_cnts(ha, NULL, NULL, NULL, &fw_iocb_cnt);
 838         if (rval)
 839                 return;
 840         /* No point in continuing if current settings are sufficient. */
 841         if (fw_iocb_cnt < 1024)
 842                 return;
 843         if (ha->request_q_length >= request_q_length)
 844                 return;
 845
 846         /* Attempt to claim larger area for request queue. */
 847         request_ring = dma_alloc_coherent(&ha->pdev->dev,
 848             (request_q_length + 1) * sizeof(request_t), &request_dma,
 849             GFP_KERNEL);
 850         if (request_ring == NULL)
 851                 return;
 852
 853         /* Resize successful, report extensions. */
 854         qla_printk(KERN_INFO, ha, "Extended memory detected (%d KB)...\n",
 855             (ha->fw_memory_size + 1) / 1024);
 856         qla_printk(KERN_INFO, ha, "Resizing request queue depth "
 857             "(%d -> %d)...\n", ha->request_q_length, request_q_length);
 858
 859         /* Clear old allocations. */
 860         dma_free_coherent(&ha->pdev->dev,
 861             (ha->request_q_length + 1) * sizeof(request_t), ha->request_ring,
 862             ha->request_dma);
 863
 864         /* Begin using larger queue. */
 865         ha->request_q_length = request_q_length;
 866         ha->request_ring = request_ring;
 867         ha->request_dma = request_dma;
 868 }
 869
 870 /**
 871  * qla2x00_setup_chip() - Load and start RISC firmware.
 872  * @ha: HA context
 873  *
 874  * Returns 0 on success.
 875  */
 876 static int
 877 qla2x00_setup_chip(scsi_qla_host_t *ha)
 878 {
 879         int rval;
 880         uint32_t srisc_address = 0;
 881
 882         /* Load firmware sequences */
 883         rval = ha->isp_ops.load_risc(ha, &srisc_address);
 884         if (rval == QLA_SUCCESS) {
 885                 DEBUG(printk("scsi(%ld): Verifying Checksum of loaded RISC "
 886                     "code.\n", ha->host_no));
 887
 888                 rval = qla2x00_verify_checksum(ha, srisc_address);
 889                 if (rval == QLA_SUCCESS) {
 890                         /* Start firmware execution. */
 891                         DEBUG(printk("scsi(%ld): Checksum OK, start "
 892                             "firmware.\n", ha->host_no));
 893
 894                         rval = qla2x00_execute_fw(ha, srisc_address);
 895                         /* Retrieve firmware information. */
 896                         if (rval == QLA_SUCCESS && ha->fw_major_version == 0) {
 897                                 qla2x00_get_fw_version(ha,
 898                                     &ha->fw_major_version,
 899                                     &ha->fw_minor_version,
 900                                     &ha->fw_subminor_version,
 901                                     &ha->fw_attributes, &ha->fw_memory_size);
 902                                 qla2x00_resize_request_q(ha);
 903
 904                                 if (ql2xallocfwdump)
 905                                         qla2x00_alloc_fw_dump(ha);
 906                         }
 907                 } else {
 908                         DEBUG2(printk(KERN_INFO
 909                             "scsi(%ld): ISP Firmware failed checksum.\n",
 910                             ha->host_no));
 911                 }
 912         }
 913
 914         if (rval) {
 915                 DEBUG2_3(printk("scsi(%ld): Setup chip **** FAILED ****.\n",
 916                     ha->host_no));
 917         }
 918
 919         return (rval);
 920 }
 921
 922 /**
 923  * qla2x00_init_response_q_entries() - Initializes response queue entries.
 924  * @ha: HA context
 925  *
 926  * Beginning of request ring has initialization control block already built
 927  * by nvram config routine.
 928  *
 929  * Returns 0 on success.
 930  */
 931 static void
 932 qla2x00_init_response_q_entries(scsi_qla_host_t *ha)
 933 {
 934         uint16_t cnt;
 935         response_t *pkt;
 936
 937         pkt = ha->response_ring_ptr;
 938         for (cnt = 0; cnt < ha->response_q_length; cnt++) {
 939                 pkt->signature = RESPONSE_PROCESSED;
 940                 pkt++;
 941         }
 942
 943 }
 944
 945 /**
 946  * qla2x00_update_fw_options() - Read and process firmware options.
 947  * @ha: HA context
 948  *
 949  * Returns 0 on success.
 950  */
 951 void
 952 qla2x00_update_fw_options(scsi_qla_host_t *ha)
 953 {
 954         uint16_t swing, emphasis, tx_sens, rx_sens;
 955
 956         memset(ha->fw_options, 0, sizeof(ha->fw_options));
 957         qla2x00_get_fw_options(ha, ha->fw_options);
 958
 959         if (IS_QLA2100(ha) || IS_QLA2200(ha))
 960                 return;
 961
 962         /* Serial Link options. */
 963         DEBUG3(printk("scsi(%ld): Serial link options:\n",
 964             ha->host_no));
 965         DEBUG3(qla2x00_dump_buffer((uint8_t *)&ha->fw_seriallink_options,
 966             sizeof(ha->fw_seriallink_options)));
 967
 968         ha->fw_options[1] &= ~FO1_SET_EMPHASIS_SWING;
 969         if (ha->fw_seriallink_options[3] & BIT_2) {
 970                 ha->fw_options[1] |= FO1_SET_EMPHASIS_SWING;
 971
 972                 /*  1G settings */
 973                 swing = ha->fw_seriallink_options[2] & (BIT_2 | BIT_1 | BIT_0);
 974                 emphasis = (ha->fw_seriallink_options[2] &
 975                     (BIT_4 | BIT_3)) >> 3;
 976                 tx_sens = ha->fw_seriallink_options[0] &
 977                     (BIT_3 | BIT_2 | BIT_1 | BIT_0);
 978                 rx_sens = (ha->fw_seriallink_options[0] &
 979                     (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
 980                 ha->fw_options[10] = (emphasis << 14) | (swing << 8);
 981                 if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
 982                         if (rx_sens == 0x0)
 983                                 rx_sens = 0x3;
 984                         ha->fw_options[10] |= (tx_sens << 4) | rx_sens;
 985                 } else if (IS_QLA2322(ha) || IS_QLA6322(ha))
 986                         ha->fw_options[10] |= BIT_5 |
 987                             ((rx_sens & (BIT_1 | BIT_0)) << 2) |
 988                             (tx_sens & (BIT_1 | BIT_0));
 989
 990                 /*  2G settings */
 991                 swing = (ha->fw_seriallink_options[2] &
 992                     (BIT_7 | BIT_6 | BIT_5)) >> 5;
 993                 emphasis = ha->fw_seriallink_options[3] & (BIT_1 | BIT_0);
 994                 tx_sens = ha->fw_seriallink_options[1] &
 995                     (BIT_3 | BIT_2 | BIT_1 | BIT_0);
 996                 rx_sens = (ha->fw_seriallink_options[1] &
 997                     (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
 998                 ha->fw_options[11] = (emphasis << 14) | (swing << 8);
 999                 if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
1000                         if (rx_sens == 0x0)
1001                                 rx_sens = 0x3;
1002                         ha->fw_options[11] |= (tx_sens << 4) | rx_sens;
1003                 } else if (IS_QLA2322(ha) || IS_QLA6322(ha))
1004                         ha->fw_options[11] |= BIT_5 |
1005                             ((rx_sens & (BIT_1 | BIT_0)) << 2) |
1006                             (tx_sens & (BIT_1 | BIT_0));
1007         }
1008
1009         /* FCP2 options. */
1010         /*  Return command IOCBs without waiting for an ABTS to complete. */
1011         ha->fw_options[3] |= BIT_13;
1012
1013         /* LED scheme. */
1014         if (ha->flags.enable_led_scheme)
1015                 ha->fw_options[2] |= BIT_12;
1016
1017         /* Detect ISP6312. */
1018         if (IS_QLA6312(ha))
1019                 ha->fw_options[2] |= BIT_13;
1020
1021         /* Update firmware options. */
1022         qla2x00_set_fw_options(ha, ha->fw_options);
1023 }
1024
1025 void
1026 qla24xx_update_fw_options(scsi_qla_host_t *ha)
1027 {
1028         int rval;
1029
1030         /* Update Serial Link options. */
1031         if ((le16_to_cpu(ha->fw_seriallink_options24[0]) & BIT_0) == 0)
1032                 return;
1033
1034         rval = qla2x00_set_serdes_params(ha,
1035             le16_to_cpu(ha->fw_seriallink_options24[1]),
1036             le16_to_cpu(ha->fw_seriallink_options24[2]),
1037             le16_to_cpu(ha->fw_seriallink_options24[3]));
1038         if (rval != QLA_SUCCESS) {
1039                 qla_printk(KERN_WARNING, ha,
1040                     "Unable to update Serial Link options (%x).\n", rval);
1041         }
1042 }
1043
1044 void
1045 qla2x00_config_rings(struct scsi_qla_host *ha)
1046 {
1047         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1048
1049         /* Setup ring parameters in initialization control block. */
1050         ha->init_cb->request_q_outpointer = __constant_cpu_to_le16(0);
1051         ha->init_cb->response_q_inpointer = __constant_cpu_to_le16(0);
1052         ha->init_cb->request_q_length = cpu_to_le16(ha->request_q_length);
1053         ha->init_cb->response_q_length = cpu_to_le16(ha->response_q_length);
1054         ha->init_cb->request_q_address[0] = cpu_to_le32(LSD(ha->request_dma));
1055         ha->init_cb->request_q_address[1] = cpu_to_le32(MSD(ha->request_dma));
1056         ha->init_cb->response_q_address[0] = cpu_to_le32(LSD(ha->response_dma));
1057         ha->init_cb->response_q_address[1] = cpu_to_le32(MSD(ha->response_dma));
1058
1059         WRT_REG_WORD(ISP_REQ_Q_IN(ha, reg), 0);
1060         WRT_REG_WORD(ISP_REQ_Q_OUT(ha, reg), 0);
1061         WRT_REG_WORD(ISP_RSP_Q_IN(ha, reg), 0);
1062         WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), 0);
1063         RD_REG_WORD(ISP_RSP_Q_OUT(ha, reg));            /* PCI Posting. */
1064 }
1065
1066 void
1067 qla24xx_config_rings(struct scsi_qla_host *ha)
1068 {
1069         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1070         struct init_cb_24xx *icb;
1071
1072         /* Setup ring parameters in initialization control block. */
1073         icb = (struct init_cb_24xx *)ha->init_cb;
1074         icb->request_q_outpointer = __constant_cpu_to_le16(0);
1075         icb->response_q_inpointer = __constant_cpu_to_le16(0);
1076         icb->request_q_length = cpu_to_le16(ha->request_q_length);
1077         icb->response_q_length = cpu_to_le16(ha->response_q_length);
1078         icb->request_q_address[0] = cpu_to_le32(LSD(ha->request_dma));
1079         icb->request_q_address[1] = cpu_to_le32(MSD(ha->request_dma));
1080         icb->response_q_address[0] = cpu_to_le32(LSD(ha->response_dma));
1081         icb->response_q_address[1] = cpu_to_le32(MSD(ha->response_dma));
1082
1083         WRT_REG_DWORD(&reg->req_q_in, 0);
1084         WRT_REG_DWORD(&reg->req_q_out, 0);
1085         WRT_REG_DWORD(&reg->rsp_q_in, 0);
1086         WRT_REG_DWORD(&reg->rsp_q_out, 0);
1087         RD_REG_DWORD(&reg->rsp_q_out);
1088 }
1089
1090 /**
1091  * qla2x00_init_rings() - Initializes firmware.
1092  * @ha: HA context
1093  *
1094  * Beginning of request ring has initialization control block already built
1095  * by nvram config routine.
1096  *
1097  * Returns 0 on success.
1098  */
1099 static int
1100 qla2x00_init_rings(scsi_qla_host_t *ha)
1101 {
1102         int     rval;
1103         unsigned long flags = 0;
1104         int cnt;
1105
1106         spin_lock_irqsave(&ha->hardware_lock, flags);
1107
1108         /* Clear outstanding commands array. */
1109         for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++)
1110                 ha->outstanding_cmds[cnt] = NULL;
1111
1112         ha->current_outstanding_cmd = 0;
1113
1114         /* Clear RSCN queue. */
1115         ha->rscn_in_ptr = 0;
1116         ha->rscn_out_ptr = 0;
1117
1118         /* Initialize firmware. */
1119         ha->request_ring_ptr  = ha->request_ring;
1120         ha->req_ring_index    = 0;
1121         ha->req_q_cnt         = ha->request_q_length;
1122         ha->response_ring_ptr = ha->response_ring;
1123         ha->rsp_ring_index    = 0;
1124
1125         /* Initialize response queue entries */
1126         qla2x00_init_response_q_entries(ha);
1127
1128         ha->isp_ops.config_rings(ha);
1129
1130         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1131
1132         /* Update any ISP specific firmware options before initialization. */
1133         ha->isp_ops.update_fw_options(ha);
1134
1135         DEBUG(printk("scsi(%ld): Issue init firmware.\n", ha->host_no));
1136         rval = qla2x00_init_firmware(ha, ha->init_cb_size);
1137         if (rval) {
1138                 DEBUG2_3(printk("scsi(%ld): Init firmware **** FAILED ****.\n",
1139                     ha->host_no));
1140         } else {
1141                 DEBUG3(printk("scsi(%ld): Init firmware -- success.\n",
1142                     ha->host_no));
1143         }
1144
1145         return (rval);
1146 }
1147
1148 /**
1149  * qla2x00_fw_ready() - Waits for firmware ready.
1150  * @ha: HA context
1151  *
1152  * Returns 0 on success.
1153  */
1154 static int
1155 qla2x00_fw_ready(scsi_qla_host_t *ha)
1156 {
1157         int             rval;
1158         unsigned long   wtime, mtime;
1159         uint16_t        min_wait;       /* Minimum wait time if loop is down */
1160         uint16_t        wait_time;      /* Wait time if loop is coming ready */
1161         uint16_t        fw_state;
1162
1163         rval = QLA_SUCCESS;
1164
1165         /* 20 seconds for loop down. */
1166         min_wait = 20;
1167
1168         /*
1169          * Firmware should take at most one RATOV to login, plus 5 seconds for
1170          * our own processing.
1171          */
1172         if ((wait_time = (ha->retry_count*ha->login_timeout) + 5) < min_wait) {
1173                 wait_time = min_wait;
1174         }
1175
1176         /* Min wait time if loop down */
1177         mtime = jiffies + (min_wait * HZ);
1178
1179         /* wait time before firmware ready */
1180         wtime = jiffies + (wait_time * HZ);
1181
1182         /* Wait for ISP to finish LIP */
1183         if (!ha->flags.init_done)
1184                 qla_printk(KERN_INFO, ha, "Waiting for LIP to complete...\n");
1185
1186         DEBUG3(printk("scsi(%ld): Waiting for LIP to complete...\n",
1187             ha->host_no));
1188
1189         do {
1190                 rval = qla2x00_get_firmware_state(ha, &fw_state);
1191                 if (rval == QLA_SUCCESS) {
1192                         if (fw_state < FSTATE_LOSS_OF_SYNC) {
1193                                 ha->device_flags &= ~DFLG_NO_CABLE;
1194                         }
1195                         if (fw_state == FSTATE_READY) {
1196                                 DEBUG(printk("scsi(%ld): F/W Ready - OK \n",
1197                                     ha->host_no));
1198
1199                                 qla2x00_get_retry_cnt(ha, &ha->retry_count,
1200                                     &ha->login_timeout, &ha->r_a_tov);
1201
1202                                 rval = QLA_SUCCESS;
1203                                 break;
1204                         }
1205
1206                         rval = QLA_FUNCTION_FAILED;
1207
1208                         if (atomic_read(&ha->loop_down_timer) &&
1209                             fw_state != FSTATE_READY) {
1210                                 /* Loop down. Timeout on min_wait for states
1211                                  * other than Wait for Login.
1212                                  */
1213                                 if (time_after_eq(jiffies, mtime)) {
1214                                         qla_printk(KERN_INFO, ha,
1215                                             "Cable is unplugged...\n");
1216
1217                                         ha->device_flags |= DFLG_NO_CABLE;
1218                                         break;
1219                                 }
1220                         }
1221                 } else {
1222                         /* Mailbox cmd failed. Timeout on min_wait. */
1223                         if (time_after_eq(jiffies, mtime))
1224                                 break;
1225                 }
1226
1227                 if (time_after_eq(jiffies, wtime))
1228                         break;
1229
1230                 /* Delay for a while */
1231                 msleep(500);
1232
1233                 DEBUG3(printk("scsi(%ld): fw_state=%x curr time=%lx.\n",
1234                     ha->host_no, fw_state, jiffies));
1235         } while (1);
1236
1237         DEBUG(printk("scsi(%ld): fw_state=%x curr time=%lx.\n",
1238             ha->host_no, fw_state, jiffies));
1239
1240         if (rval) {
1241                 DEBUG2_3(printk("scsi(%ld): Firmware ready **** FAILED ****.\n",
1242                     ha->host_no));
1243         }
1244
1245         return (rval);
1246 }
1247
1248 /*
1249 *  qla2x00_configure_hba
1250 *      Setup adapter context.
1251 *
1252 * Input:
1253 *      ha = adapter state pointer.
1254 *
1255 * Returns:
1256 *      0 = success
1257 *
1258 * Context:
1259 *      Kernel context.
1260 */
1261 static int
1262 qla2x00_configure_hba(scsi_qla_host_t *ha)
1263 {
1264         int       rval;
1265         uint16_t      loop_id;
1266         uint16_t      topo;
1267         uint8_t       al_pa;
1268         uint8_t       area;
1269         uint8_t       domain;
1270         char            connect_type[22];
1271
1272         /* Get host addresses. */
1273         rval = qla2x00_get_adapter_id(ha,
1274             &loop_id, &al_pa, &area, &domain, &topo);
1275         if (rval != QLA_SUCCESS) {
1276                 if (LOOP_TRANSITION(ha) || atomic_read(&ha->loop_down_timer) ||
1277                     (rval == QLA_COMMAND_ERROR && loop_id == 0x7)) {
1278                         DEBUG2(printk("%s(%ld) Loop is in a transition state\n",
1279                             __func__, ha->host_no));
1280                 } else {
1281                         qla_printk(KERN_WARNING, ha,
1282                             "ERROR -- Unable to get host loop ID.\n");
1283                         set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
1284                 }
1285                 return (rval);
1286         }
1287
1288         if (topo == 4) {
1289                 qla_printk(KERN_INFO, ha,
1290                         "Cannot get topology - retrying.\n");
1291                 return (QLA_FUNCTION_FAILED);
1292         }
1293
1294         ha->loop_id = loop_id;
1295
1296         /* initialize */
1297         ha->min_external_loopid = SNS_FIRST_LOOP_ID;
1298         ha->operating_mode = LOOP;
1299
1300         switch (topo) {
1301         case 0:
1302                 DEBUG3(printk("scsi(%ld): HBA in NL topology.\n",
1303                     ha->host_no));
1304                 ha->current_topology = ISP_CFG_NL;
1305                 strcpy(connect_type, "(Loop)");
1306                 break;
1307
1308         case 1:
1309                 DEBUG3(printk("scsi(%ld): HBA in FL topology.\n",
1310                     ha->host_no));
1311                 ha->current_topology = ISP_CFG_FL;
1312                 strcpy(connect_type, "(FL_Port)");
1313                 break;
1314
1315         case 2:
1316                 DEBUG3(printk("scsi(%ld): HBA in N P2P topology.\n",
1317                     ha->host_no));
1318                 ha->operating_mode = P2P;
1319                 ha->current_topology = ISP_CFG_N;
1320                 strcpy(connect_type, "(N_Port-to-N_Port)");
1321                 break;
1322
1323         case 3:
1324                 DEBUG3(printk("scsi(%ld): HBA in F P2P topology.\n",
1325                     ha->host_no));
1326                 ha->operating_mode = P2P;
1327                 ha->current_topology = ISP_CFG_F;
1328                 strcpy(connect_type, "(F_Port)");
1329                 break;
1330
1331         default:
1332                 DEBUG3(printk("scsi(%ld): HBA in unknown topology %x. "
1333                     "Using NL.\n",
1334                     ha->host_no, topo));
1335                 ha->current_topology = ISP_CFG_NL;
1336                 strcpy(connect_type, "(Loop)");
1337                 break;
1338         }
1339
1340         /* Save Host port and loop ID. */
1341         /* byte order - Big Endian */
1342         ha->d_id.b.domain = domain;
1343         ha->d_id.b.area = area;
1344         ha->d_id.b.al_pa = al_pa;
1345
1346         if (!ha->flags.init_done)
1347                 qla_printk(KERN_INFO, ha,
1348                     "Topology - %s, Host Loop address 0x%x\n",
1349                     connect_type, ha->loop_id);
1350
1351         if (rval) {
1352                 DEBUG2_3(printk("scsi(%ld): FAILED.\n", ha->host_no));
1353         } else {
1354                 DEBUG3(printk("scsi(%ld): exiting normally.\n", ha->host_no));
1355         }
1356
1357         return(rval);
1358 }
1359
1360 static inline void
1361 qla2x00_set_model_info(scsi_qla_host_t *ha, uint8_t *model, size_t len, char *def)
1362 {
1363         char *st, *en;
1364         uint16_t index;
1365
1366         if (memcmp(model, BINZERO, len) != 0) {
1367                 strncpy(ha->model_number, model, len);
1368                 st = en = ha->model_number;
1369                 en += len - 1;
1370                 while (en > st) {
1371                         if (*en != 0x20 && *en != 0x00)
1372                                 break;
1373                         *en-- = '\0';
1374                 }
1375
1376                 index = (ha->pdev->subsystem_device & 0xff);
1377                 if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_QLOGIC &&
1378                     index < QLA_MODEL_NAMES)
1379                         ha->model_desc = qla2x00_model_name[index * 2 + 1];
1380         } else {
1381                 index = (ha->pdev->subsystem_device & 0xff);
1382                 if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_QLOGIC &&
1383                     index < QLA_MODEL_NAMES) {
1384                         strcpy(ha->model_number,
1385                             qla2x00_model_name[index * 2]);
1386                         ha->model_desc = qla2x00_model_name[index * 2 + 1];
1387                 } else {
1388                         strcpy(ha->model_number, def);
1389                 }
1390         }
1391 }
1392
1393 /* On sparc systems, obtain port and node WWN from firmware
1394  * properties.
1395  */
1396 static void qla2xxx_nvram_wwn_from_ofw(scsi_qla_host_t *ha, nvram_t *nv)
1397 {
1398 #ifdef CONFIG_SPARC
1399         struct pci_dev *pdev = ha->pdev;
1400         struct pcidev_cookie *pcp = pdev->sysdata;
1401         struct device_node *dp = pcp->prom_node;
1402         u8 *val;
1403         int len;
1404
1405         val = of_get_property(dp, "port-wwn", &len);
1406         if (val && len >= WWN_SIZE)
1407                 memcpy(nv->port_name, val, WWN_SIZE);
1408
1409         val = of_get_property(dp, "node-wwn", &len);
1410         if (val && len >= WWN_SIZE)
1411                 memcpy(nv->node_name, val, WWN_SIZE);
1412 #endif
1413 }
1414
1415 /*
1416 * NVRAM configuration for ISP 2xxx
1417 *
1418 * Input:
1419 *      ha                = adapter block pointer.
1420 *
1421 * Output:
1422 *      initialization control block in response_ring
1423 *      host adapters parameters in host adapter block
1424 *
1425 * Returns:
1426 *      0 = success.
1427 */
1428 int
1429 qla2x00_nvram_config(scsi_qla_host_t *ha)
1430 {
1431         int             rval;
1432         uint8_t         chksum = 0;
1433         uint16_t        cnt;
1434         uint8_t         *dptr1, *dptr2;
1435         init_cb_t       *icb = ha->init_cb;
1436         nvram_t         *nv = (nvram_t *)ha->request_ring;
1437         uint8_t         *ptr = (uint8_t *)ha->request_ring;
1438         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1439
1440         rval = QLA_SUCCESS;
1441
1442         /* Determine NVRAM starting address. */
1443         ha->nvram_size = sizeof(nvram_t);
1444         ha->nvram_base = 0;
1445         if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA2300(ha))
1446                 if ((RD_REG_WORD(&reg->ctrl_status) >> 14) == 1)
1447                         ha->nvram_base = 0x80;
1448
1449         /* Get NVRAM data and calculate checksum. */
1450         ha->isp_ops.read_nvram(ha, ptr, ha->nvram_base, ha->nvram_size);
1451         for (cnt = 0, chksum = 0; cnt < ha->nvram_size; cnt++)
1452                 chksum += *ptr++;
1453
1454         DEBUG5(printk("scsi(%ld): Contents of NVRAM\n", ha->host_no));
1455         DEBUG5(qla2x00_dump_buffer((uint8_t *)ha->request_ring,
1456             ha->nvram_size));
1457
1458         /* Bad NVRAM data, set defaults parameters. */
1459         if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' ||
1460             nv->id[2] != 'P' || nv->id[3] != ' ' || nv->nvram_version < 1) {
1461                 /* Reset NVRAM data. */
1462                 qla_printk(KERN_WARNING, ha, "Inconsistent NVRAM detected: "
1463                     "checksum=0x%x id=%c version=0x%x.\n", chksum, nv->id[0],
1464                     nv->nvram_version);
1465                 qla_printk(KERN_WARNING, ha, "Falling back to functioning (yet "
1466                     "invalid -- WWPN) defaults.\n");
1467
1468                 /*
1469                  * Set default initialization control block.
1470                  */
1471                 memset(nv, 0, ha->nvram_size);
1472                 nv->parameter_block_version = ICB_VERSION;
1473
1474                 if (IS_QLA23XX(ha)) {
1475                         nv->firmware_options[0] = BIT_2 | BIT_1;
1476                         nv->firmware_options[1] = BIT_7 | BIT_5;
1477                         nv->add_firmware_options[0] = BIT_5;
1478                         nv->add_firmware_options[1] = BIT_5 | BIT_4;
1479                         nv->frame_payload_size = __constant_cpu_to_le16(2048);
1480                         nv->special_options[1] = BIT_7;
1481                 } else if (IS_QLA2200(ha)) {
1482                         nv->firmware_options[0] = BIT_2 | BIT_1;
1483                         nv->firmware_options[1] = BIT_7 | BIT_5;
1484                         nv->add_firmware_options[0] = BIT_5;
1485                         nv->add_firmware_options[1] = BIT_5 | BIT_4;
1486                         nv->frame_payload_size = __constant_cpu_to_le16(1024);
1487                 } else if (IS_QLA2100(ha)) {
1488                         nv->firmware_options[0] = BIT_3 | BIT_1;
1489                         nv->firmware_options[1] = BIT_5;
1490                         nv->frame_payload_size = __constant_cpu_to_le16(1024);
1491                 }
1492
1493                 nv->max_iocb_allocation = __constant_cpu_to_le16(256);
1494                 nv->execution_throttle = __constant_cpu_to_le16(16);
1495                 nv->retry_count = 8;
1496                 nv->retry_delay = 1;
1497
1498                 nv->port_name[0] = 33;
1499                 nv->port_name[3] = 224;
1500                 nv->port_name[4] = 139;
1501
1502                 qla2xxx_nvram_wwn_from_ofw(ha, nv);
1503
1504                 nv->login_timeout = 4;
1505
1506                 /*
1507                  * Set default host adapter parameters
1508                  */
1509                 nv->host_p[1] = BIT_2;
1510                 nv->reset_delay = 5;
1511                 nv->port_down_retry_count = 8;
1512                 nv->max_luns_per_target = __constant_cpu_to_le16(8);
1513                 nv->link_down_timeout = 60;
1514
1515                 rval = 1;
1516         }
1517
1518 #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
1519         /*
1520          * The SN2 does not provide BIOS emulation which means you can't change
1521          * potentially bogus BIOS settings. Force the use of default settings
1522          * for link rate and frame size.  Hope that the rest of the settings
1523          * are valid.
1524          */
1525         if (ia64_platform_is("sn2")) {
1526                 nv->frame_payload_size = __constant_cpu_to_le16(2048);
1527                 if (IS_QLA23XX(ha))
1528                         nv->special_options[1] = BIT_7;
1529         }
1530 #endif
1531
1532         /* Reset Initialization control block */
1533         memset(icb, 0, ha->init_cb_size);
1534
1535         /*
1536          * Setup driver NVRAM options.
1537          */
1538         nv->firmware_options[0] |= (BIT_6 | BIT_1);
1539         nv->firmware_options[0] &= ~(BIT_5 | BIT_4);
1540         nv->firmware_options[1] |= (BIT_5 | BIT_0);
1541         nv->firmware_options[1] &= ~BIT_4;
1542
1543         if (IS_QLA23XX(ha)) {
1544                 nv->firmware_options[0] |= BIT_2;
1545                 nv->firmware_options[0] &= ~BIT_3;
1546                 nv->add_firmware_options[1] |= BIT_5 | BIT_4;
1547
1548                 if (IS_QLA2300(ha)) {
1549                         if (ha->fb_rev == FPM_2310) {
1550                                 strcpy(ha->model_number, "QLA2310");
1551                         } else {
1552                                 strcpy(ha->model_number, "QLA2300");
1553                         }
1554                 } else {
1555                         qla2x00_set_model_info(ha, nv->model_number,
1556                             sizeof(nv->model_number), "QLA23xx");
1557                 }
1558         } else if (IS_QLA2200(ha)) {
1559                 nv->firmware_options[0] |= BIT_2;
1560                 /*
1561                  * 'Point-to-point preferred, else loop' is not a safe
1562                  * connection mode setting.
1563                  */
1564                 if ((nv->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) ==
1565                     (BIT_5 | BIT_4)) {
1566                         /* Force 'loop preferred, else point-to-point'. */
1567                         nv->add_firmware_options[0] &= ~(BIT_6 | BIT_5 | BIT_4);
1568                         nv->add_firmware_options[0] |= BIT_5;
1569                 }
1570                 strcpy(ha->model_number, "QLA22xx");
1571         } else /*if (IS_QLA2100(ha))*/ {
1572                 strcpy(ha->model_number, "QLA2100");
1573         }
1574
1575         /*
1576          * Copy over NVRAM RISC parameter block to initialization control block.
1577          */
1578         dptr1 = (uint8_t *)icb;
1579         dptr2 = (uint8_t *)&nv->parameter_block_version;
1580         cnt = (uint8_t *)&icb->request_q_outpointer - (uint8_t *)&icb->version;
1581         while (cnt--)
1582                 *dptr1++ = *dptr2++;
1583
1584         /* Copy 2nd half. */
1585         dptr1 = (uint8_t *)icb->add_firmware_options;
1586         cnt = (uint8_t *)icb->reserved_3 - (uint8_t *)icb->add_firmware_options;
1587         while (cnt--)
1588                 *dptr1++ = *dptr2++;
1589
1590         /* Use alternate WWN? */
1591         if (nv->host_p[1] & BIT_7) {
1592                 memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
1593                 memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
1594         }
1595
1596         /* Prepare nodename */
1597         if ((icb->firmware_options[1] & BIT_6) == 0) {
1598                 /*
1599                  * Firmware will apply the following mask if the nodename was
1600                  * not provided.
1601                  */
1602                 memcpy(icb->node_name, icb->port_name, WWN_SIZE);
1603                 icb->node_name[0] &= 0xF0;
1604         }
1605
1606         /*
1607          * Set host adapter parameters.
1608          */
1609         if (nv->host_p[0] & BIT_7)
1610                 ql2xextended_error_logging = 1;
1611         ha->flags.disable_risc_code_load = ((nv->host_p[0] & BIT_4) ? 1 : 0);
1612         /* Always load RISC code on non ISP2[12]00 chips. */
1613         if (!IS_QLA2100(ha) && !IS_QLA2200(ha))
1614                 ha->flags.disable_risc_code_load = 0;
1615         ha->flags.enable_lip_reset = ((nv->host_p[1] & BIT_1) ? 1 : 0);
1616         ha->flags.enable_lip_full_login = ((nv->host_p[1] & BIT_2) ? 1 : 0);
1617         ha->flags.enable_target_reset = ((nv->host_p[1] & BIT_3) ? 1 : 0);
1618         ha->flags.enable_led_scheme = (nv->special_options[1] & BIT_4) ? 1 : 0;
1619         ha->flags.disable_serdes = 0;
1620
1621         ha->operating_mode =
1622             (icb->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) >> 4;
1623
1624         memcpy(ha->fw_seriallink_options, nv->seriallink_options,
1625             sizeof(ha->fw_seriallink_options));
1626
1627         /* save HBA serial number */
1628         ha->serial0 = icb->port_name[5];
1629         ha->serial1 = icb->port_name[6];
1630         ha->serial2 = icb->port_name[7];
1631         ha->node_name = icb->node_name;
1632         ha->port_name = icb->port_name;
1633
1634         icb->execution_throttle = __constant_cpu_to_le16(0xFFFF);
1635
1636         ha->retry_count = nv->retry_count;
1637
1638         /* Set minimum login_timeout to 4 seconds. */
1639         if (nv->login_timeout < ql2xlogintimeout)
1640                 nv->login_timeout = ql2xlogintimeout;
1641         if (nv->login_timeout < 4)
1642                 nv->login_timeout = 4;
1643         ha->login_timeout = nv->login_timeout;
1644         icb->login_timeout = nv->login_timeout;
1645
1646         /* Set minimum RATOV to 200 tenths of a second. */
1647         ha->r_a_tov = 200;
1648
1649         ha->loop_reset_delay = nv->reset_delay;
1650
1651         /* Link Down Timeout = 0:
1652          *
1653          *      When Port Down timer expires we will start returning
1654          *      I/O's to OS with "DID_NO_CONNECT".
1655          *
1656          * Link Down Timeout != 0:
1657          *
1658          *       The driver waits for the link to come up after link down
1659          *       before returning I/Os to OS with "DID_NO_CONNECT".
1660          */
1661         if (nv->link_down_timeout == 0) {
1662                 ha->loop_down_abort_time =
1663                     (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
1664         } else {
1665                 ha->link_down_timeout =  nv->link_down_timeout;
1666                 ha->loop_down_abort_time =
1667                     (LOOP_DOWN_TIME - ha->link_down_timeout);
1668         }
1669
1670         /*
1671          * Need enough time to try and get the port back.
1672          */
1673         ha->port_down_retry_count = nv->port_down_retry_count;
1674         if (qlport_down_retry)
1675                 ha->port_down_retry_count = qlport_down_retry;
1676         /* Set login_retry_count */
1677         ha->login_retry_count  = nv->retry_count;
1678         if (ha->port_down_retry_count == nv->port_down_retry_count &&
1679             ha->port_down_retry_count > 3)
1680                 ha->login_retry_count = ha->port_down_retry_count;
1681         else if (ha->port_down_retry_count > (int)ha->login_retry_count)
1682                 ha->login_retry_count = ha->port_down_retry_count;
1683         if (ql2xloginretrycount)
1684                 ha->login_retry_count = ql2xloginretrycount;
1685
1686         icb->lun_enables = __constant_cpu_to_le16(0);
1687         icb->command_resource_count = 0;
1688         icb->immediate_notify_resource_count = 0;
1689         icb->timeout = __constant_cpu_to_le16(0);
1690
1691         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
1692                 /* Enable RIO */
1693                 icb->firmware_options[0] &= ~BIT_3;
1694                 icb->add_firmware_options[0] &=
1695                     ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
1696                 icb->add_firmware_options[0] |= BIT_2;
1697                 icb->response_accumulation_timer = 3;
1698                 icb->interrupt_delay_timer = 5;
1699
1700                 ha->flags.process_response_queue = 1;
1701         } else {
1702                 /* Enable ZIO. */
1703                 if (!ha->flags.init_done) {
1704                         ha->zio_mode = icb->add_firmware_options[0] &
1705                             (BIT_3 | BIT_2 | BIT_1 | BIT_0);
1706                         ha->zio_timer = icb->interrupt_delay_timer ?
1707                             icb->interrupt_delay_timer: 2;
1708                 }
1709                 icb->add_firmware_options[0] &=
1710                     ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
1711                 ha->flags.process_response_queue = 0;
1712                 if (ha->zio_mode != QLA_ZIO_DISABLED) {
1713                         ha->zio_mode = QLA_ZIO_MODE_6;
1714
1715                         DEBUG2(printk("scsi(%ld): ZIO mode %d enabled; timer "
1716                             "delay (%d us).\n", ha->host_no, ha->zio_mode,
1717                             ha->zio_timer * 100));
1718                         qla_printk(KERN_INFO, ha,
1719                             "ZIO mode %d enabled; timer delay (%d us).\n",
1720                             ha->zio_mode, ha->zio_timer * 100);
1721
1722                         icb->add_firmware_options[0] |= (uint8_t)ha->zio_mode;
1723                         icb->interrupt_delay_timer = (uint8_t)ha->zio_timer;
1724                         ha->flags.process_response_queue = 1;
1725                 }
1726         }
1727
1728         if (rval) {
1729                 DEBUG2_3(printk(KERN_WARNING
1730                     "scsi(%ld): NVRAM configuration failed!\n", ha->host_no));
1731         }
1732         return (rval);
1733 }
1734
1735 static void
1736 qla2x00_rport_del(void *data)
1737 {
1738         fc_port_t *fcport = data;
1739         struct fc_rport *rport;
1740         unsigned long flags;
1741
1742         spin_lock_irqsave(&fcport->rport_lock, flags);
1743         rport = fcport->drport;
1744         fcport->drport = NULL;
1745         spin_unlock_irqrestore(&fcport->rport_lock, flags);
1746         if (rport)
1747                 fc_remote_port_delete(rport);
1748
1749 }
1750
1751 /**
1752  * qla2x00_alloc_fcport() - Allocate a generic fcport.
1753  * @ha: HA context
1754  * @flags: allocation flags
1755  *
1756  * Returns a pointer to the allocated fcport, or NULL, if none available.
1757  */
1758 static fc_port_t *
1759 qla2x00_alloc_fcport(scsi_qla_host_t *ha, gfp_t flags)
1760 {
1761         fc_port_t *fcport;
1762
1763         fcport = kmalloc(sizeof(fc_port_t), flags);
1764         if (fcport == NULL)
1765                 return (fcport);
1766
1767         /* Setup fcport template structure. */
1768         memset(fcport, 0, sizeof (fc_port_t));
1769         fcport->ha = ha;
1770         fcport->port_type = FCT_UNKNOWN;
1771         fcport->loop_id = FC_NO_LOOP_ID;
1772         atomic_set(&fcport->state, FCS_UNCONFIGURED);
1773         fcport->flags = FCF_RLC_SUPPORT;
1774         fcport->supported_classes = FC_COS_UNSPECIFIED;
1775         spin_lock_init(&fcport->rport_lock);
1776
1777         return (fcport);
1778 }
1779
1780 /*
1781  * qla2x00_configure_loop
1782  *      Updates Fibre Channel Device Database with what is actually on loop.
1783  *
1784  * Input:
1785  *      ha                = adapter block pointer.
1786  *
1787  * Returns:
1788  *      0 = success.
1789  *      1 = error.
1790  *      2 = database was full and device was not configured.
1791  */
1792 static int
1793 qla2x00_configure_loop(scsi_qla_host_t *ha)
1794 {
1795         int  rval;
1796         unsigned long flags, save_flags;
1797
1798         rval = QLA_SUCCESS;
1799
1800         /* Get Initiator ID */
1801         if (test_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags)) {
1802                 rval = qla2x00_configure_hba(ha);
1803                 if (rval != QLA_SUCCESS) {
1804                         DEBUG(printk("scsi(%ld): Unable to configure HBA.\n",
1805                             ha->host_no));
1806                         return (rval);
1807                 }
1808         }
1809
1810         save_flags = flags = ha->dpc_flags;
1811         DEBUG(printk("scsi(%ld): Configure loop -- dpc flags =0x%lx\n",
1812             ha->host_no, flags));
1813
1814         /*
1815          * If we have both an RSCN and PORT UPDATE pending then handle them
1816          * both at the same time.
1817          */
1818         clear_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1819         clear_bit(RSCN_UPDATE, &ha->dpc_flags);
1820
1821         /* Determine what we need to do */
1822         if (ha->current_topology == ISP_CFG_FL &&
1823             (test_bit(LOCAL_LOOP_UPDATE, &flags))) {
1824
1825                 ha->flags.rscn_queue_overflow = 1;
1826                 set_bit(RSCN_UPDATE, &flags);
1827
1828         } else if (ha->current_topology == ISP_CFG_F &&
1829             (test_bit(LOCAL_LOOP_UPDATE, &flags))) {
1830
1831                 ha->flags.rscn_queue_overflow = 1;
1832                 set_bit(RSCN_UPDATE, &flags);
1833                 clear_bit(LOCAL_LOOP_UPDATE, &flags);
1834
1835         } else if (ha->current_topology == ISP_CFG_N) {
1836                 clear_bit(RSCN_UPDATE, &flags);
1837
1838         } else if (!ha->flags.online ||
1839             (test_bit(ABORT_ISP_ACTIVE, &flags))) {
1840
1841                 ha->flags.rscn_queue_overflow = 1;
1842                 set_bit(RSCN_UPDATE, &flags);
1843                 set_bit(LOCAL_LOOP_UPDATE, &flags);
1844         }
1845
1846         if (test_bit(LOCAL_LOOP_UPDATE, &flags)) {
1847                 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
1848                         rval = QLA_FUNCTION_FAILED;
1849                 } else {
1850                         rval = qla2x00_configure_local_loop(ha);
1851                 }
1852         }
1853
1854         if (rval == QLA_SUCCESS && test_bit(RSCN_UPDATE, &flags)) {
1855                 if (LOOP_TRANSITION(ha)) {
1856                         rval = QLA_FUNCTION_FAILED;
1857                 } else {
1858                         rval = qla2x00_configure_fabric(ha);
1859                 }
1860         }
1861
1862         if (rval == QLA_SUCCESS) {
1863                 if (atomic_read(&ha->loop_down_timer) ||
1864                     test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
1865                         rval = QLA_FUNCTION_FAILED;
1866                 } else {
1867                         atomic_set(&ha->loop_state, LOOP_READY);
1868
1869                         DEBUG(printk("scsi(%ld): LOOP READY\n", ha->host_no));
1870                 }
1871         }
1872
1873         if (rval) {
1874                 DEBUG2_3(printk("%s(%ld): *** FAILED ***\n",
1875                     __func__, ha->host_no));
1876         } else {
1877                 DEBUG3(printk("%s: exiting normally\n", __func__));
1878         }
1879
1880         /* Restore state if a resync event occured during processing */
1881         if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
1882                 if (test_bit(LOCAL_LOOP_UPDATE, &save_flags))
1883                         set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1884                 if (test_bit(RSCN_UPDATE, &save_flags))
1885                         set_bit(RSCN_UPDATE, &ha->dpc_flags);
1886         }
1887
1888         return (rval);
1889 }
1890
1891
1892
1893 /*
1894  * qla2x00_configure_local_loop
1895  *      Updates Fibre Channel Device Database with local loop devices.
1896  *
1897  * Input:
1898  *      ha = adapter block pointer.
1899  *
1900  * Returns:
1901  *      0 = success.
1902  */
1903 static int
1904 qla2x00_configure_local_loop(scsi_qla_host_t *ha)
1905 {
1906         int             rval, rval2;
1907         int             found_devs;
1908         int             found;
1909         fc_port_t       *fcport, *new_fcport;
1910
1911         uint16_t        index;
1912         uint16_t        entries;
1913         char            *id_iter;
1914         uint16_t        loop_id;
1915         uint8_t         domain, area, al_pa;
1916
1917         found_devs = 0;
1918         new_fcport = NULL;
1919         entries = MAX_FIBRE_DEVICES;
1920
1921         DEBUG3(printk("scsi(%ld): Getting FCAL position map\n", ha->host_no));
1922         DEBUG3(qla2x00_get_fcal_position_map(ha, NULL));
1923
1924         /* Get list of logged in devices. */
1925         memset(ha->gid_list, 0, GID_LIST_SIZE);
1926         rval = qla2x00_get_id_list(ha, ha->gid_list, ha->gid_list_dma,
1927             &entries);
1928         if (rval != QLA_SUCCESS)
1929                 goto cleanup_allocation;
1930
1931         DEBUG3(printk("scsi(%ld): Entries in ID list (%d)\n",
1932             ha->host_no, entries));
1933         DEBUG3(qla2x00_dump_buffer((uint8_t *)ha->gid_list,
1934             entries * sizeof(struct gid_list_info)));
1935
1936         /* Allocate temporary fcport for any new fcports discovered. */
1937         new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
1938         if (new_fcport == NULL) {
1939                 rval = QLA_MEMORY_ALLOC_FAILED;
1940                 goto cleanup_allocation;
1941         }
1942         new_fcport->flags &= ~FCF_FABRIC_DEVICE;
1943
1944         /*
1945          * Mark local devices that were present with FCF_DEVICE_LOST for now.
1946          */
1947         list_for_each_entry(fcport, &ha->fcports, list) {
1948                 if (atomic_read(&fcport->state) == FCS_ONLINE &&
1949                     fcport->port_type != FCT_BROADCAST &&
1950                     (fcport->flags & FCF_FABRIC_DEVICE) == 0) {
1951
1952                         DEBUG(printk("scsi(%ld): Marking port lost, "
1953                             "loop_id=0x%04x\n",
1954                             ha->host_no, fcport->loop_id));
1955
1956                         atomic_set(&fcport->state, FCS_DEVICE_LOST);
1957                         fcport->flags &= ~FCF_FARP_DONE;
1958                 }
1959         }
1960
1961         /* Add devices to port list. */
1962         id_iter = (char *)ha->gid_list;
1963         for (index = 0; index < entries; index++) {
1964                 domain = ((struct gid_list_info *)id_iter)->domain;
1965                 area = ((struct gid_list_info *)id_iter)->area;
1966                 al_pa = ((struct gid_list_info *)id_iter)->al_pa;
1967                 if (IS_QLA2100(ha) || IS_QLA2200(ha))
1968                         loop_id = (uint16_t)
1969                             ((struct gid_list_info *)id_iter)->loop_id_2100;
1970                 else
1971                         loop_id = le16_to_cpu(
1972                             ((struct gid_list_info *)id_iter)->loop_id);
1973                 id_iter += ha->gid_list_info_size;
1974
1975                 /* Bypass reserved domain fields. */
1976                 if ((domain & 0xf0) == 0xf0)
1977                         continue;
1978
1979                 /* Bypass if not same domain and area of adapter. */
1980                 if (area && domain &&
1981                     (area != ha->d_id.b.area || domain != ha->d_id.b.domain))
1982                         continue;
1983
1984                 /* Bypass invalid local loop ID. */
1985                 if (loop_id > LAST_LOCAL_LOOP_ID)
1986                         continue;
1987
1988                 /* Fill in member data. */
1989                 new_fcport->d_id.b.domain = domain;
1990                 new_fcport->d_id.b.area = area;
1991                 new_fcport->d_id.b.al_pa = al_pa;
1992                 new_fcport->loop_id = loop_id;
1993                 rval2 = qla2x00_get_port_database(ha, new_fcport, 0);
1994                 if (rval2 != QLA_SUCCESS) {
1995                         DEBUG2(printk("scsi(%ld): Failed to retrieve fcport "
1996                             "information -- get_port_database=%x, "
1997                             "loop_id=0x%04x\n",
1998                             ha->host_no, rval2, new_fcport->loop_id));
1999                         DEBUG2(printk("scsi(%ld): Scheduling resync...\n",
2000                             ha->host_no));
2001                         set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2002                         continue;
2003                 }
2004
2005                 /* Check for matching device in port list. */
2006                 found = 0;
2007                 fcport = NULL;
2008                 list_for_each_entry(fcport, &ha->fcports, list) {
2009                         if (memcmp(new_fcport->port_name, fcport->port_name,
2010                             WWN_SIZE))
2011                                 continue;
2012
2013                         fcport->flags &= ~(FCF_FABRIC_DEVICE |
2014                             FCF_PERSISTENT_BOUND);
2015                         fcport->loop_id = new_fcport->loop_id;
2016                         fcport->port_type = new_fcport->port_type;
2017                         fcport->d_id.b24 = new_fcport->d_id.b24;
2018                         memcpy(fcport->node_name, new_fcport->node_name,
2019                             WWN_SIZE);
2020
2021                         found++;
2022                         break;
2023                 }
2024
2025                 if (!found) {
2026                         /* New device, add to fcports list. */
2027                         new_fcport->flags &= ~FCF_PERSISTENT_BOUND;
2028                         list_add_tail(&new_fcport->list, &ha->fcports);
2029
2030                         /* Allocate a new replacement fcport. */
2031                         fcport = new_fcport;
2032                         new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
2033                         if (new_fcport == NULL) {
2034                                 rval = QLA_MEMORY_ALLOC_FAILED;
2035                                 goto cleanup_allocation;
2036                         }
2037                         new_fcport->flags &= ~FCF_FABRIC_DEVICE;
2038                 }
2039
2040                 /* Base iIDMA settings on HBA port speed. */
2041                 switch (ha->link_data_rate) {
2042                 case PORT_SPEED_1GB:
2043                         fcport->fp_speed = cpu_to_be16(BIT_15);
2044                         break;
2045                 case PORT_SPEED_2GB:
2046                         fcport->fp_speed = cpu_to_be16(BIT_14);
2047                         break;
2048                 case PORT_SPEED_4GB:
2049                         fcport->fp_speed = cpu_to_be16(BIT_13);
2050                         break;
2051                 }
2052
2053                 qla2x00_update_fcport(ha, fcport);
2054
2055                 found_devs++;
2056         }
2057
2058 cleanup_allocation:
2059         kfree(new_fcport);
2060
2061         if (rval != QLA_SUCCESS) {
2062                 DEBUG2(printk("scsi(%ld): Configure local loop error exit: "
2063                     "rval=%x\n", ha->host_no, rval));
2064         }
2065
2066         if (found_devs) {
2067                 ha->device_flags |= DFLG_LOCAL_DEVICES;
2068                 ha->device_flags &= ~DFLG_RETRY_LOCAL_DEVICES;
2069         }
2070
2071         return (rval);
2072 }
2073
2074 static void
2075 qla2x00_probe_for_all_luns(scsi_qla_host_t *ha)
2076 {
2077         fc_port_t       *fcport;
2078
2079         qla2x00_mark_all_devices_lost(ha, 0);
2080         list_for_each_entry(fcport, &ha->fcports, list) {
2081                 if (fcport->port_type != FCT_TARGET)
2082                         continue;
2083
2084                 qla2x00_update_fcport(ha, fcport);
2085         }
2086 }
2087
2088 static void
2089 qla2x00_iidma_fcport(scsi_qla_host_t *ha, fc_port_t *fcport)
2090 {
2091 #define LS_UNKNOWN      2
2092         static char *link_speeds[5] = { "1", "2", "?", "4" };
2093         int rval;
2094         uint16_t port_speed, mb[6];
2095
2096         if (!IS_QLA24XX(ha))
2097                 return;
2098
2099         switch (be16_to_cpu(fcport->fp_speed)) {
2100         case BIT_15:
2101                 port_speed = PORT_SPEED_1GB;
2102                 break;
2103         case BIT_14:
2104                 port_speed = PORT_SPEED_2GB;
2105                 break;
2106         case BIT_13:
2107                 port_speed = PORT_SPEED_4GB;
2108                 break;
2109         default:
2110                 DEBUG2(printk("scsi(%ld): %02x%02x%02x%02x%02x%02x%02x%02x -- "
2111                     "unsupported FM port operating speed (%04x).\n",
2112                     ha->host_no, fcport->port_name[0], fcport->port_name[1],
2113                     fcport->port_name[2], fcport->port_name[3],
2114                     fcport->port_name[4], fcport->port_name[5],
2115                     fcport->port_name[6], fcport->port_name[7],
2116                     be16_to_cpu(fcport->fp_speed)));
2117                 port_speed = PORT_SPEED_UNKNOWN;
2118                 break;
2119         }
2120         if (port_speed == PORT_SPEED_UNKNOWN)
2121                 return;
2122
2123         rval = qla2x00_set_idma_speed(ha, fcport->loop_id, port_speed, mb);
2124         if (rval != QLA_SUCCESS) {
2125                 DEBUG2(printk("scsi(%ld): Unable to adjust iIDMA "
2126                     "%02x%02x%02x%02x%02x%02x%02x%02x -- %04x %x %04x %04x.\n",
2127                     ha->host_no, fcport->port_name[0], fcport->port_name[1],
2128                     fcport->port_name[2], fcport->port_name[3],
2129                     fcport->port_name[4], fcport->port_name[5],
2130                     fcport->port_name[6], fcport->port_name[7], rval,
2131                     port_speed, mb[0], mb[1]));
2132         } else {
2133                 DEBUG2(qla_printk(KERN_INFO, ha,
2134                     "iIDMA adjusted to %s GB/s on "
2135                     "%02x%02x%02x%02x%02x%02x%02x%02x.\n",
2136                     link_speeds[port_speed], fcport->port_name[0],
2137                     fcport->port_name[1], fcport->port_name[2],
2138                     fcport->port_name[3], fcport->port_name[4],
2139                     fcport->port_name[5], fcport->port_name[6],
2140                     fcport->port_name[7]));
2141         }
2142 }
2143
2144 static void
2145 qla2x00_reg_remote_port(scsi_qla_host_t *ha, fc_port_t *fcport)
2146 {
2147         struct fc_rport_identifiers rport_ids;
2148         struct fc_rport *rport;
2149         unsigned long flags;
2150
2151         if (fcport->drport)
2152                 qla2x00_rport_del(fcport);
2153         if (fcport->rport)
2154                 return;
2155
2156         rport_ids.node_name = wwn_to_u64(fcport->node_name);
2157         rport_ids.port_name = wwn_to_u64(fcport->port_name);
2158         rport_ids.port_id = fcport->d_id.b.domain << 16 |
2159             fcport->d_id.b.area << 8 | fcport->d_id.b.al_pa;
2160         rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
2161         rport = fc_remote_port_add(ha->host, 0, &rport_ids);
2162         if (!rport) {
2163                 qla_printk(KERN_WARNING, ha,
2164                     "Unable to allocate fc remote port!\n");
2165                 return;
2166         }
2167         spin_lock_irqsave(&fcport->rport_lock, flags);
2168         fcport->rport = rport;
2169         *((fc_port_t **)rport->dd_data) = fcport;
2170         spin_unlock_irqrestore(&fcport->rport_lock, flags);
2171
2172         rport->supported_classes = fcport->supported_classes;
2173
2174         rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
2175         if (fcport->port_type == FCT_INITIATOR)
2176                 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
2177         if (fcport->port_type == FCT_TARGET)
2178                 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
2179         fc_remote_port_rolechg(rport, rport_ids.roles);
2180
2181         if (rport->scsi_target_id != -1 &&
2182             rport->scsi_target_id < ha->host->max_id)
2183                 fcport->os_target_id = rport->scsi_target_id;
2184 }
2185
2186 /*
2187  * qla2x00_update_fcport
2188  *      Updates device on list.
2189  *
2190  * Input:
2191  *      ha = adapter block pointer.
2192  *      fcport = port structure pointer.
2193  *
2194  * Return:
2195  *      0  - Success
2196  *  BIT_0 - error
2197  *
2198  * Context:
2199  *      Kernel context.
2200  */
2201 void
2202 qla2x00_update_fcport(scsi_qla_host_t *ha, fc_port_t *fcport)
2203 {
2204         fcport->ha = ha;
2205         fcport->login_retry = 0;
2206         fcport->port_login_retry_count = ha->port_down_retry_count *
2207             PORT_RETRY_TIME;
2208         atomic_set(&fcport->port_down_timer, ha->port_down_retry_count *
2209             PORT_RETRY_TIME);
2210         fcport->flags &= ~FCF_LOGIN_NEEDED;
2211
2212         qla2x00_iidma_fcport(ha, fcport);
2213
2214         atomic_set(&fcport->state, FCS_ONLINE);
2215
2216         qla2x00_reg_remote_port(ha, fcport);
2217 }
2218
2219 /*
2220  * qla2x00_configure_fabric
2221  *      Setup SNS devices with loop ID's.
2222  *
2223  * Input:
2224  *      ha = adapter block pointer.
2225  *
2226  * Returns:
2227  *      0 = success.
2228  *      BIT_0 = error
2229  */
2230 static int
2231 qla2x00_configure_fabric(scsi_qla_host_t *ha)
2232 {
2233         int     rval, rval2;
2234         fc_port_t       *fcport, *fcptemp;
2235         uint16_t        next_loopid;
2236         uint16_t        mb[MAILBOX_REGISTER_COUNT];
2237         uint16_t        loop_id;
2238         LIST_HEAD(new_fcports);
2239
2240         /* If FL port exists, then SNS is present */
2241         if (IS_QLA24XX(ha) || IS_QLA54XX(ha))
2242                 loop_id = NPH_F_PORT;
2243         else
2244                 loop_id = SNS_FL_PORT;
2245         rval = qla2x00_get_port_name(ha, loop_id, ha->fabric_node_name, 1);
2246         if (rval != QLA_SUCCESS) {
2247                 DEBUG2(printk("scsi(%ld): MBC_GET_PORT_NAME Failed, No FL "
2248                     "Port\n", ha->host_no));
2249
2250                 ha->device_flags &= ~SWITCH_FOUND;
2251                 return (QLA_SUCCESS);
2252         }
2253         ha->device_flags |= SWITCH_FOUND;
2254
2255         /* Mark devices that need re-synchronization. */
2256         rval2 = qla2x00_device_resync(ha);
2257         if (rval2 == QLA_RSCNS_HANDLED) {
2258                 /* No point doing the scan, just continue. */
2259                 return (QLA_SUCCESS);
2260         }
2261         do {
2262                 /* FDMI support. */
2263                 if (ql2xfdmienable &&
2264                     test_and_clear_bit(REGISTER_FDMI_NEEDED, &ha->dpc_flags))
2265                         qla2x00_fdmi_register(ha);
2266
2267                 /* Ensure we are logged into the SNS. */
2268                 if (IS_QLA24XX(ha) || IS_QLA54XX(ha))
2269                         loop_id = NPH_SNS;
2270                 else
2271                         loop_id = SIMPLE_NAME_SERVER;
2272                 ha->isp_ops.fabric_login(ha, loop_id, 0xff, 0xff,
2273                     0xfc, mb, BIT_1 | BIT_0);
2274                 if (mb[0] != MBS_COMMAND_COMPLETE) {
2275                         DEBUG2(qla_printk(KERN_INFO, ha,
2276                             "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x "
2277                             "mb[2]=%x mb[6]=%x mb[7]=%x\n", loop_id,
2278                             mb[0], mb[1], mb[2], mb[6], mb[7]));
2279                         return (QLA_SUCCESS);
2280                 }
2281
2282                 if (test_and_clear_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags)) {
2283                         if (qla2x00_rft_id(ha)) {
2284                                 /* EMPTY */
2285                                 DEBUG2(printk("scsi(%ld): Register FC-4 "
2286                                     "TYPE failed.\n", ha->host_no));
2287                         }
2288                         if (qla2x00_rff_id(ha)) {
2289                                 /* EMPTY */
2290                                 DEBUG2(printk("scsi(%ld): Register FC-4 "
2291                                     "Features failed.\n", ha->host_no));
2292                         }
2293                         if (qla2x00_rnn_id(ha)) {
2294                                 /* EMPTY */
2295                                 DEBUG2(printk("scsi(%ld): Register Node Name "
2296                                     "failed.\n", ha->host_no));
2297                         } else if (qla2x00_rsnn_nn(ha)) {
2298                                 /* EMPTY */
2299                                 DEBUG2(printk("scsi(%ld): Register Symbolic "
2300                                     "Node Name failed.\n", ha->host_no));
2301                         }
2302                 }
2303
2304                 rval = qla2x00_find_all_fabric_devs(ha, &new_fcports);
2305                 if (rval != QLA_SUCCESS)
2306                         break;
2307
2308                 /*
2309                  * Logout all previous fabric devices marked lost, except
2310                  * tape devices.
2311                  */
2312                 list_for_each_entry(fcport, &ha->fcports, list) {
2313                         if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2314                                 break;
2315
2316                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0)
2317                                 continue;
2318
2319                         if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2320                                 qla2x00_mark_device_lost(ha, fcport,
2321                                     ql2xplogiabsentdevice, 0);
2322                                 if (fcport->loop_id != FC_NO_LOOP_ID &&
2323                                     (fcport->flags & FCF_TAPE_PRESENT) == 0 &&
2324                                     fcport->port_type != FCT_INITIATOR &&
2325                                     fcport->port_type != FCT_BROADCAST) {
2326                                         ha->isp_ops.fabric_logout(ha,
2327                                             fcport->loop_id,
2328                                             fcport->d_id.b.domain,
2329                                             fcport->d_id.b.area,
2330                                             fcport->d_id.b.al_pa);
2331                                         fcport->loop_id = FC_NO_LOOP_ID;
2332                                 }
2333                         }
2334                 }
2335
2336                 /* Starting free loop ID. */
2337                 next_loopid = ha->min_external_loopid;
2338
2339                 /*
2340                  * Scan through our port list and login entries that need to be
2341                  * logged in.
2342                  */
2343                 list_for_each_entry(fcport, &ha->fcports, list) {
2344                         if (atomic_read(&ha->loop_down_timer) ||
2345                             test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2346                                 break;
2347
2348                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 ||
2349                             (fcport->flags & FCF_LOGIN_NEEDED) == 0)
2350                                 continue;
2351
2352                         if (fcport->loop_id == FC_NO_LOOP_ID) {
2353                                 fcport->loop_id = next_loopid;
2354                                 rval = qla2x00_find_new_loop_id(ha, fcport);
2355                                 if (rval != QLA_SUCCESS) {
2356                                         /* Ran out of IDs to use */
2357                                         break;
2358                                 }
2359                         }
2360                         /* Login and update database */
2361                         qla2x00_fabric_dev_login(ha, fcport, &next_loopid);
2362                 }
2363
2364                 /* Exit if out of loop IDs. */
2365                 if (rval != QLA_SUCCESS) {
2366                         break;
2367                 }
2368
2369                 /*
2370                  * Login and add the new devices to our port list.
2371                  */
2372                 list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) {
2373                         if (atomic_read(&ha->loop_down_timer) ||
2374                             test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2375                                 break;
2376
2377                         /* Find a new loop ID to use. */
2378                         fcport->loop_id = next_loopid;
2379                         rval = qla2x00_find_new_loop_id(ha, fcport);
2380                         if (rval != QLA_SUCCESS) {
2381                                 /* Ran out of IDs to use */
2382                                 break;
2383                         }
2384
2385                         /* Remove device from the new list and add it to DB */
2386                         list_move_tail(&fcport->list, &ha->fcports);
2387
2388                         /* Login and update database */
2389                         qla2x00_fabric_dev_login(ha, fcport, &next_loopid);
2390                 }
2391         } while (0);
2392
2393         /* Free all new device structures not processed. */
2394         list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) {
2395                 list_del(&fcport->list);
2396                 kfree(fcport);
2397         }
2398
2399         if (rval) {
2400                 DEBUG2(printk("scsi(%ld): Configure fabric error exit: "
2401                     "rval=%d\n", ha->host_no, rval));
2402         }
2403
2404         return (rval);
2405 }
2406
2407
2408 /*
2409  * qla2x00_find_all_fabric_devs
2410  *
2411  * Input:
2412  *      ha = adapter block pointer.
2413  *      dev = database device entry pointer.
2414  *
2415  * Returns:
2416  *      0 = success.
2417  *
2418  * Context:
2419  *      Kernel context.
2420  */
2421 static int
2422 qla2x00_find_all_fabric_devs(scsi_qla_host_t *ha, struct list_head *new_fcports)
2423 {
2424         int             rval;
2425         uint16_t        loop_id;
2426         fc_port_t       *fcport, *new_fcport, *fcptemp;
2427         int             found;
2428
2429         sw_info_t       *swl;
2430         int             swl_idx;
2431         int             first_dev, last_dev;
2432         port_id_t       wrap, nxt_d_id;
2433
2434         rval = QLA_SUCCESS;
2435
2436         /* Try GID_PT to get device list, else GAN. */
2437         swl = kmalloc(sizeof(sw_info_t) * MAX_FIBRE_DEVICES, GFP_ATOMIC);
2438         if (swl == NULL) {
2439                 /*EMPTY*/
2440                 DEBUG2(printk("scsi(%ld): GID_PT allocations failed, fallback "
2441                     "on GA_NXT\n", ha->host_no));
2442         } else {
2443                 memset(swl, 0, sizeof(sw_info_t) * MAX_FIBRE_DEVICES);
2444                 if (qla2x00_gid_pt(ha, swl) != QLA_SUCCESS) {
2445                         kfree(swl);
2446                         swl = NULL;
2447                 } else if (qla2x00_gpn_id(ha, swl) != QLA_SUCCESS) {
2448                         kfree(swl);
2449                         swl = NULL;
2450                 } else if (qla2x00_gnn_id(ha, swl) != QLA_SUCCESS) {
2451                         kfree(swl);
2452                         swl = NULL;
2453                 } else if (qla2x00_gfpn_id(ha, swl) == QLA_SUCCESS) {
2454                         qla2x00_gpsc(ha, swl);
2455                 }
2456         }
2457         swl_idx = 0;
2458
2459         /* Allocate temporary fcport for any new fcports discovered. */
2460         new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
2461         if (new_fcport == NULL) {
2462                 kfree(swl);
2463                 return (QLA_MEMORY_ALLOC_FAILED);
2464         }
2465         new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
2466
2467         /* Set start port ID scan at adapter ID. */
2468         first_dev = 1;
2469         last_dev = 0;
2470
2471         /* Starting free loop ID. */
2472         loop_id = ha->min_external_loopid;
2473         for (; loop_id <= ha->last_loop_id; loop_id++) {
2474                 if (qla2x00_is_reserved_id(ha, loop_id))
2475                         continue;
2476
2477                 if (atomic_read(&ha->loop_down_timer) || LOOP_TRANSITION(ha))
2478                         break;
2479
2480                 if (swl != NULL) {
2481                         if (last_dev) {
2482                                 wrap.b24 = new_fcport->d_id.b24;
2483                         } else {
2484                                 new_fcport->d_id.b24 = swl[swl_idx].d_id.b24;
2485                                 memcpy(new_fcport->node_name,
2486                                     swl[swl_idx].node_name, WWN_SIZE);
2487                                 memcpy(new_fcport->port_name,
2488                                     swl[swl_idx].port_name, WWN_SIZE);
2489                                 memcpy(new_fcport->fabric_port_name,
2490                                     swl[swl_idx].fabric_port_name, WWN_SIZE);
2491                                 new_fcport->fp_speed = swl[swl_idx].fp_speed;
2492
2493                                 if (swl[swl_idx].d_id.b.rsvd_1 != 0) {
2494                                         last_dev = 1;
2495                                 }
2496                                 swl_idx++;
2497                         }
2498                 } else {
2499                         /* Send GA_NXT to the switch */
2500                         rval = qla2x00_ga_nxt(ha, new_fcport);
2501                         if (rval != QLA_SUCCESS) {
2502                                 qla_printk(KERN_WARNING, ha,
2503                                     "SNS scan failed -- assuming zero-entry "
2504                                     "result...\n");
2505                                 list_for_each_entry_safe(fcport, fcptemp,
2506                                     new_fcports, list) {
2507                                         list_del(&fcport->list);
2508                                         kfree(fcport);
2509                                 }
2510                                 rval = QLA_SUCCESS;
2511                                 break;
2512                         }
2513                 }
2514
2515                 /* If wrap on switch device list, exit. */
2516                 if (first_dev) {
2517                         wrap.b24 = new_fcport->d_id.b24;
2518                         first_dev = 0;
2519                 } else if (new_fcport->d_id.b24 == wrap.b24) {
2520                         DEBUG2(printk("scsi(%ld): device wrap (%02x%02x%02x)\n",
2521                             ha->host_no, new_fcport->d_id.b.domain,
2522                             new_fcport->d_id.b.area, new_fcport->d_id.b.al_pa));
2523                         break;
2524                 }
2525
2526                 /* Bypass if host adapter. */
2527                 if (new_fcport->d_id.b24 == ha->d_id.b24)
2528                         continue;
2529
2530                 /* Bypass if same domain and area of adapter. */
2531                 if (((new_fcport->d_id.b24 & 0xffff00) ==
2532                     (ha->d_id.b24 & 0xffff00)) && ha->current_topology ==
2533                         ISP_CFG_FL)
2534                             continue;
2535
2536                 /* Bypass reserved domain fields. */
2537                 if ((new_fcport->d_id.b.domain & 0xf0) == 0xf0)
2538                         continue;
2539
2540                 /* Locate matching device in database. */
2541                 found = 0;
2542                 list_for_each_entry(fcport, &ha->fcports, list) {
2543                         if (memcmp(new_fcport->port_name, fcport->port_name,
2544                             WWN_SIZE))
2545                                 continue;
2546
2547                         found++;
2548
2549                         /* Update port state. */
2550                         memcpy(fcport->fabric_port_name,
2551                             new_fcport->fabric_port_name, WWN_SIZE);
2552                         fcport->fp_speed = new_fcport->fp_speed;
2553
2554                         /*
2555                          * If address the same and state FCS_ONLINE, nothing
2556                          * changed.
2557                          */
2558                         if (fcport->d_id.b24 == new_fcport->d_id.b24 &&
2559                             atomic_read(&fcport->state) == FCS_ONLINE) {
2560                                 break;
2561                         }
2562
2563                         /*
2564                          * If device was not a fabric device before.
2565                          */
2566                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) {
2567                                 fcport->d_id.b24 = new_fcport->d_id.b24;
2568                                 fcport->loop_id = FC_NO_LOOP_ID;
2569                                 fcport->flags |= (FCF_FABRIC_DEVICE |
2570                                     FCF_LOGIN_NEEDED);
2571                                 fcport->flags &= ~FCF_PERSISTENT_BOUND;
2572                                 break;
2573                         }
2574
2575                         /*
2576                          * Port ID changed or device was marked to be updated;
2577                          * Log it out if still logged in and mark it for
2578                          * relogin later.
2579                          */
2580                         fcport->d_id.b24 = new_fcport->d_id.b24;
2581                         fcport->flags |= FCF_LOGIN_NEEDED;
2582                         if (fcport->loop_id != FC_NO_LOOP_ID &&
2583                             (fcport->flags & FCF_TAPE_PRESENT) == 0 &&
2584                             fcport->port_type != FCT_INITIATOR &&
2585                             fcport->port_type != FCT_BROADCAST) {
2586                                 ha->isp_ops.fabric_logout(ha, fcport->loop_id,
2587                                     fcport->d_id.b.domain, fcport->d_id.b.area,
2588                                     fcport->d_id.b.al_pa);
2589                                 fcport->loop_id = FC_NO_LOOP_ID;
2590                         }
2591
2592                         break;
2593                 }
2594
2595                 if (found)
2596                         continue;
2597
2598                 /* If device was not in our fcports list, then add it. */
2599                 list_add_tail(&new_fcport->list, new_fcports);
2600
2601                 /* Allocate a new replacement fcport. */
2602                 nxt_d_id.b24 = new_fcport->d_id.b24;
2603                 new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
2604                 if (new_fcport == NULL) {
2605                         kfree(swl);
2606                         return (QLA_MEMORY_ALLOC_FAILED);
2607                 }
2608                 new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
2609                 new_fcport->d_id.b24 = nxt_d_id.b24;
2610         }
2611
2612         kfree(swl);
2613         kfree(new_fcport);
2614
2615         if (!list_empty(new_fcports))
2616                 ha->device_flags |= DFLG_FABRIC_DEVICES;
2617
2618         return (rval);
2619 }
2620
2621 /*
2622  * qla2x00_find_new_loop_id
2623  *      Scan through our port list and find a new usable loop ID.
2624  *
2625  * Input:
2626  *      ha:     adapter state pointer.
2627  *      dev:    port structure pointer.
2628  *
2629  * Returns:
2630  *      qla2x00 local function return status code.
2631  *
2632  * Context:
2633  *      Kernel context.
2634  */
2635 static int
2636 qla2x00_find_new_loop_id(scsi_qla_host_t *ha, fc_port_t *dev)
2637 {
2638         int     rval;
2639         int     found;
2640         fc_port_t *fcport;
2641         uint16_t first_loop_id;
2642
2643         rval = QLA_SUCCESS;
2644
2645         /* Save starting loop ID. */
2646         first_loop_id = dev->loop_id;
2647
2648         for (;;) {
2649                 /* Skip loop ID if already used by adapter. */
2650                 if (dev->loop_id == ha->loop_id) {
2651                         dev->loop_id++;
2652                 }
2653
2654                 /* Skip reserved loop IDs. */
2655                 while (qla2x00_is_reserved_id(ha, dev->loop_id)) {
2656                         dev->loop_id++;
2657                 }
2658
2659                 /* Reset loop ID if passed the end. */
2660                 if (dev->loop_id > ha->last_loop_id) {
2661                         /* first loop ID. */
2662                         dev->loop_id = ha->min_external_loopid;
2663                 }
2664
2665                 /* Check for loop ID being already in use. */
2666                 found = 0;
2667                 fcport = NULL;
2668                 list_for_each_entry(fcport, &ha->fcports, list) {
2669                         if (fcport->loop_id == dev->loop_id && fcport != dev) {
2670                                 /* ID possibly in use */
2671                                 found++;
2672                                 break;
2673                         }
2674                 }
2675
2676                 /* If not in use then it is free to use. */
2677                 if (!found) {
2678                         break;
2679                 }
2680
2681                 /* ID in use. Try next value. */
2682                 dev->loop_id++;
2683
2684                 /* If wrap around. No free ID to use. */
2685                 if (dev->loop_id == first_loop_id) {
2686                         dev->loop_id = FC_NO_LOOP_ID;
2687                         rval = QLA_FUNCTION_FAILED;
2688                         break;
2689                 }
2690         }
2691
2692         return (rval);
2693 }
2694
2695 /*
2696  * qla2x00_device_resync
2697  *      Marks devices in the database that needs resynchronization.
2698  *
2699  * Input:
2700  *      ha = adapter block pointer.
2701  *
2702  * Context:
2703  *      Kernel context.
2704  */
2705 static int
2706 qla2x00_device_resync(scsi_qla_host_t *ha)
2707 {
2708         int     rval;
2709         uint32_t mask;
2710         fc_port_t *fcport;
2711         uint32_t rscn_entry;
2712         uint8_t rscn_out_iter;
2713         uint8_t format;
2714         port_id_t d_id;
2715
2716         rval = QLA_RSCNS_HANDLED;
2717
2718         while (ha->rscn_out_ptr != ha->rscn_in_ptr ||
2719             ha->flags.rscn_queue_overflow) {
2720
2721                 rscn_entry = ha->rscn_queue[ha->rscn_out_ptr];
2722                 format = MSB(MSW(rscn_entry));
2723                 d_id.b.domain = LSB(MSW(rscn_entry));
2724                 d_id.b.area = MSB(LSW(rscn_entry));
2725                 d_id.b.al_pa = LSB(LSW(rscn_entry));
2726
2727                 DEBUG(printk("scsi(%ld): RSCN queue entry[%d] = "
2728                     "[%02x/%02x%02x%02x].\n",
2729                     ha->host_no, ha->rscn_out_ptr, format, d_id.b.domain,
2730                     d_id.b.area, d_id.b.al_pa));
2731
2732                 ha->rscn_out_ptr++;
2733                 if (ha->rscn_out_ptr == MAX_RSCN_COUNT)
2734                         ha->rscn_out_ptr = 0;
2735
2736                 /* Skip duplicate entries. */
2737                 for (rscn_out_iter = ha->rscn_out_ptr;
2738                     !ha->flags.rscn_queue_overflow &&
2739                     rscn_out_iter != ha->rscn_in_ptr;
2740                     rscn_out_iter = (rscn_out_iter ==
2741                         (MAX_RSCN_COUNT - 1)) ? 0: rscn_out_iter + 1) {
2742
2743                         if (rscn_entry != ha->rscn_queue[rscn_out_iter])
2744                                 break;
2745
2746                         DEBUG(printk("scsi(%ld): Skipping duplicate RSCN queue "
2747                             "entry found at [%d].\n", ha->host_no,
2748                             rscn_out_iter));
2749
2750                         ha->rscn_out_ptr = rscn_out_iter;
2751                 }
2752
2753                 /* Queue overflow, set switch default case. */
2754                 if (ha->flags.rscn_queue_overflow) {
2755                         DEBUG(printk("scsi(%ld): device_resync: rscn "
2756                             "overflow.\n", ha->host_no));
2757
2758                         format = 3;
2759                         ha->flags.rscn_queue_overflow = 0;
2760                 }
2761
2762                 switch (format) {
2763                 case 0:
2764                         mask = 0xffffff;
2765                         break;
2766                 case 1:
2767                         mask = 0xffff00;
2768                         break;
2769                 case 2:
2770                         mask = 0xff0000;
2771                         break;
2772                 default:
2773                         mask = 0x0;
2774                         d_id.b24 = 0;
2775                         ha->rscn_out_ptr = ha->rscn_in_ptr;
2776                         break;
2777                 }
2778
2779                 rval = QLA_SUCCESS;
2780
2781                 list_for_each_entry(fcport, &ha->fcports, list) {
2782                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 ||
2783                             (fcport->d_id.b24 & mask) != d_id.b24 ||
2784                             fcport->port_type == FCT_BROADCAST)
2785                                 continue;
2786
2787                         if (atomic_read(&fcport->state) == FCS_ONLINE) {
2788                                 if (format != 3 ||
2789                                     fcport->port_type != FCT_INITIATOR) {
2790                                         qla2x00_mark_device_lost(ha, fcport,
2791                                             0, 0);
2792                                 }
2793                         }
2794                         fcport->flags &= ~FCF_FARP_DONE;
2795                 }
2796         }
2797         return (rval);
2798 }
2799
2800 /*
2801  * qla2x00_fabric_dev_login
2802  *      Login fabric target device and update FC port database.
2803  *
2804  * Input:
2805  *      ha:             adapter state pointer.
2806  *      fcport:         port structure list pointer.
2807  *      next_loopid:    contains value of a new loop ID that can be used
2808  *                      by the next login attempt.
2809  *
2810  * Returns:
2811  *      qla2x00 local function return status code.
2812  *
2813  * Context:
2814  *      Kernel context.
2815  */
2816 static int
2817 qla2x00_fabric_dev_login(scsi_qla_host_t *ha, fc_port_t *fcport,
2818     uint16_t *next_loopid)
2819 {
2820         int     rval;
2821         int     retry;
2822         uint8_t opts;
2823
2824         rval = QLA_SUCCESS;
2825         retry = 0;
2826
2827         rval = qla2x00_fabric_login(ha, fcport, next_loopid);
2828         if (rval == QLA_SUCCESS) {
2829                 /* Send an ADISC to tape devices.*/
2830                 opts = 0;
2831                 if (fcport->flags & FCF_TAPE_PRESENT)
2832                         opts |= BIT_1;
2833                 rval = qla2x00_get_port_database(ha, fcport, opts);
2834                 if (rval != QLA_SUCCESS) {
2835                         ha->isp_ops.fabric_logout(ha, fcport->loop_id,
2836                             fcport->d_id.b.domain, fcport->d_id.b.area,
2837                             fcport->d_id.b.al_pa);
2838                         qla2x00_mark_device_lost(ha, fcport, 1, 0);
2839                 } else {
2840                         qla2x00_update_fcport(ha, fcport);
2841                 }
2842         }
2843
2844         return (rval);
2845 }
2846
2847 /*
2848  * qla2x00_fabric_login
2849  *      Issue fabric login command.
2850  *
2851  * Input:
2852  *      ha = adapter block pointer.
2853  *      device = pointer to FC device type structure.
2854  *
2855  * Returns:
2856  *      0 - Login successfully
2857  *      1 - Login failed
2858  *      2 - Initiator device
2859  *      3 - Fatal error
2860  */
2861 int
2862 qla2x00_fabric_login(scsi_qla_host_t *ha, fc_port_t *fcport,
2863     uint16_t *next_loopid)
2864 {
2865         int     rval;
2866         int     retry;
2867         uint16_t tmp_loopid;
2868         uint16_t mb[MAILBOX_REGISTER_COUNT];
2869
2870         retry = 0;
2871         tmp_loopid = 0;
2872
2873         for (;;) {
2874                 DEBUG(printk("scsi(%ld): Trying Fabric Login w/loop id 0x%04x "
2875                     "for port %02x%02x%02x.\n",
2876                     ha->host_no, fcport->loop_id, fcport->d_id.b.domain,
2877                     fcport->d_id.b.area, fcport->d_id.b.al_pa));
2878
2879                 /* Login fcport on switch. */
2880                 ha->isp_ops.fabric_login(ha, fcport->loop_id,
2881                     fcport->d_id.b.domain, fcport->d_id.b.area,
2882                     fcport->d_id.b.al_pa, mb, BIT_0);
2883                 if (mb[0] == MBS_PORT_ID_USED) {
2884                         /*
2885                          * Device has another loop ID.  The firmware team
2886                          * recommends the driver perform an implicit login with
2887                          * the specified ID again. The ID we just used is save
2888                          * here so we return with an ID that can be tried by
2889                          * the next login.
2890                          */
2891                         retry++;
2892                         tmp_loopid = fcport->loop_id;
2893                         fcport->loop_id = mb[1];
2894
2895                         DEBUG(printk("Fabric Login: port in use - next "
2896                             "loop id=0x%04x, port Id=%02x%02x%02x.\n",
2897                             fcport->loop_id, fcport->d_id.b.domain,
2898                             fcport->d_id.b.area, fcport->d_id.b.al_pa));
2899
2900                 } else if (mb[0] == MBS_COMMAND_COMPLETE) {
2901                         /*
2902                          * Login succeeded.
2903                          */
2904                         if (retry) {
2905                                 /* A retry occurred before. */
2906                                 *next_loopid = tmp_loopid;
2907                         } else {
2908                                 /*
2909                                  * No retry occurred before. Just increment the
2910                                  * ID value for next login.
2911                                  */
2912                                 *next_loopid = (fcport->loop_id + 1);
2913                         }
2914
2915                         if (mb[1] & BIT_0) {
2916                                 fcport->port_type = FCT_INITIATOR;
2917                         } else {
2918                                 fcport->port_type = FCT_TARGET;
2919                                 if (mb[1] & BIT_1) {
2920                                         fcport->flags |= FCF_TAPE_PRESENT;
2921                                 }
2922                         }
2923
2924                         if (mb[10] & BIT_0)
2925                                 fcport->supported_classes |= FC_COS_CLASS2;
2926                         if (mb[10] & BIT_1)
2927                                 fcport->supported_classes |= FC_COS_CLASS3;
2928
2929                         rval = QLA_SUCCESS;
2930                         break;
2931                 } else if (mb[0] == MBS_LOOP_ID_USED) {
2932                         /*
2933                          * Loop ID already used, try next loop ID.
2934                          */
2935                         fcport->loop_id++;
2936                         rval = qla2x00_find_new_loop_id(ha, fcport);
2937                         if (rval != QLA_SUCCESS) {
2938                                 /* Ran out of loop IDs to use */
2939                                 break;
2940                         }
2941                 } else if (mb[0] == MBS_COMMAND_ERROR) {
2942                         /*
2943                          * Firmware possibly timed out during login. If NO
2944                          * retries are left to do then the device is declared
2945                          * dead.
2946                          */
2947                         *next_loopid = fcport->loop_id;
2948                         ha->isp_ops.fabric_logout(ha, fcport->loop_id,
2949                             fcport->d_id.b.domain, fcport->d_id.b.area,
2950                             fcport->d_id.b.al_pa);
2951                         qla2x00_mark_device_lost(ha, fcport, 1, 0);
2952
2953                         rval = 1;
2954                         break;
2955                 } else {
2956                         /*
2957                          * unrecoverable / not handled error
2958                          */
2959                         DEBUG2(printk("%s(%ld): failed=%x port_id=%02x%02x%02x "
2960                             "loop_id=%x jiffies=%lx.\n",
2961                             __func__, ha->host_no, mb[0],
2962                             fcport->d_id.b.domain, fcport->d_id.b.area,
2963                             fcport->d_id.b.al_pa, fcport->loop_id, jiffies));
2964
2965                         *next_loopid = fcport->loop_id;
2966                         ha->isp_ops.fabric_logout(ha, fcport->loop_id,
2967                             fcport->d_id.b.domain, fcport->d_id.b.area,
2968                             fcport->d_id.b.al_pa);
2969                         fcport->loop_id = FC_NO_LOOP_ID;
2970                         fcport->login_retry = 0;
2971
2972                         rval = 3;
2973                         break;
2974                 }
2975         }
2976
2977         return (rval);
2978 }
2979
2980 /*
2981  * qla2x00_local_device_login
2982  *      Issue local device login command.
2983  *
2984  * Input:
2985  *      ha = adapter block pointer.
2986  *      loop_id = loop id of device to login to.
2987  *
2988  * Returns (Where's the #define!!!!):
2989  *      0 - Login successfully
2990  *      1 - Login failed
2991  *      3 - Fatal error
2992  */
2993 int
2994 qla2x00_local_device_login(scsi_qla_host_t *ha, fc_port_t *fcport)
2995 {
2996         int             rval;
2997         uint16_t        mb[MAILBOX_REGISTER_COUNT];
2998
2999         memset(mb, 0, sizeof(mb));
3000         rval = qla2x00_login_local_device(ha, fcport, mb, BIT_0);
3001         if (rval == QLA_SUCCESS) {
3002                 /* Interrogate mailbox registers for any errors */
3003                 if (mb[0] == MBS_COMMAND_ERROR)
3004                         rval = 1;
3005                 else if (mb[0] == MBS_COMMAND_PARAMETER_ERROR)
3006                         /* device not in PCB table */
3007                         rval = 3;
3008         }
3009
3010         return (rval);
3011 }
3012
3013 /*
3014  *  qla2x00_loop_resync
3015  *      Resync with fibre channel devices.
3016  *
3017  * Input:
3018  *      ha = adapter block pointer.
3019  *
3020  * Returns:
3021  *      0 = success
3022  */
3023 int
3024 qla2x00_loop_resync(scsi_qla_host_t *ha)
3025 {
3026         int   rval;
3027         uint32_t wait_time;
3028
3029         rval = QLA_SUCCESS;
3030
3031         atomic_set(&ha->loop_state, LOOP_UPDATE);
3032         clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
3033         if (ha->flags.online) {
3034                 if (!(rval = qla2x00_fw_ready(ha))) {
3035                         /* Wait at most MAX_TARGET RSCNs for a stable link. */
3036                         wait_time = 256;
3037                         do {
3038                                 atomic_set(&ha->loop_state, LOOP_UPDATE);
3039
3040                                 /* Issue a marker after FW becomes ready. */
3041                                 qla2x00_marker(ha, 0, 0, MK_SYNC_ALL);
3042                                 ha->marker_needed = 0;
3043
3044                                 /* Remap devices on Loop. */
3045                                 clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
3046
3047                                 qla2x00_configure_loop(ha);
3048                                 wait_time--;
3049                         } while (!atomic_read(&ha->loop_down_timer) &&
3050                                 !(test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) &&
3051                                 wait_time &&
3052                                 (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)));
3053                 }
3054         }
3055
3056         if (test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
3057                 return (QLA_FUNCTION_FAILED);
3058         }
3059
3060         if (rval) {
3061                 DEBUG2_3(printk("%s(): **** FAILED ****\n", __func__));
3062         }
3063
3064         return (rval);
3065 }
3066
3067 void
3068 qla2x00_rescan_fcports(scsi_qla_host_t *ha)
3069 {
3070         int rescan_done;
3071         fc_port_t *fcport;
3072
3073         rescan_done = 0;
3074         list_for_each_entry(fcport, &ha->fcports, list) {
3075                 if ((fcport->flags & FCF_RESCAN_NEEDED) == 0)
3076                         continue;
3077
3078                 qla2x00_update_fcport(ha, fcport);
3079                 fcport->flags &= ~FCF_RESCAN_NEEDED;
3080
3081                 rescan_done = 1;
3082         }
3083         qla2x00_probe_for_all_luns(ha);
3084 }
3085
3086 void
3087 qla2x00_update_fcports(scsi_qla_host_t *ha)
3088 {
3089         fc_port_t *fcport;
3090
3091         /* Go with deferred removal of rport references. */
3092         list_for_each_entry(fcport, &ha->fcports, list)
3093                 if (fcport->drport)
3094                         qla2x00_rport_del(fcport);
3095 }
3096
3097 /*
3098 *  qla2x00_abort_isp
3099 *      Resets ISP and aborts all outstanding commands.
3100 *
3101 * Input:
3102 *      ha           = adapter block pointer.
3103 *
3104 * Returns:
3105 *      0 = success
3106 */
3107 int
3108 qla2x00_abort_isp(scsi_qla_host_t *ha)
3109 {
3110         int rval;
3111         unsigned long flags = 0;
3112         uint16_t       cnt;
3113         srb_t          *sp;
3114         uint8_t        status = 0;
3115
3116         if (ha->flags.online) {
3117                 ha->flags.online = 0;
3118                 clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
3119
3120                 qla_printk(KERN_INFO, ha,
3121                     "Performing ISP error recovery - ha= %p.\n", ha);
3122                 ha->isp_ops.reset_chip(ha);
3123
3124                 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
3125                 if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
3126                         atomic_set(&ha->loop_state, LOOP_DOWN);
3127                         qla2x00_mark_all_devices_lost(ha, 0);
3128                 } else {
3129                         if (!atomic_read(&ha->loop_down_timer))
3130                                 atomic_set(&ha->loop_down_timer,
3131                                     LOOP_DOWN_TIME);
3132                 }
3133
3134                 spin_lock_irqsave(&ha->hardware_lock, flags);
3135                 /* Requeue all commands in outstanding command list. */
3136                 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
3137                         sp = ha->outstanding_cmds[cnt];
3138                         if (sp) {
3139                                 ha->outstanding_cmds[cnt] = NULL;
3140                                 sp->flags = 0;
3141                                 sp->cmd->result = DID_RESET << 16;
3142                                 sp->cmd->host_scribble = (unsigned char *)NULL;
3143                                 qla2x00_sp_compl(ha, sp);
3144                         }
3145                 }
3146                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3147
3148                 ha->isp_ops.get_flash_version(ha, ha->request_ring);
3149
3150                 ha->isp_ops.nvram_config(ha);
3151
3152                 if (!qla2x00_restart_isp(ha)) {
3153                         clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
3154
3155                         if (!atomic_read(&ha->loop_down_timer)) {
3156                                 /*
3157                                  * Issue marker command only when we are going
3158                                  * to start the I/O .
3159                                  */
3160                                 ha->marker_needed = 1;
3161                         }
3162
3163                         ha->flags.online = 1;
3164
3165                         ha->isp_ops.enable_intrs(ha);
3166
3167                         ha->isp_abort_cnt = 0;
3168                         clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
3169
3170                         if (ha->eft) {
3171                                 rval = qla2x00_trace_control(ha, TC_ENABLE,
3172                                     ha->eft_dma, EFT_NUM_BUFFERS);
3173                                 if (rval) {
3174                                         qla_printk(KERN_WARNING, ha,
3175                                             "Unable to reinitialize EFT "
3176                                             "(%d).\n", rval);
3177                                 }
3178                         }
3179                 } else {        /* failed the ISP abort */
3180                         ha->flags.online = 1;
3181                         if (test_bit(ISP_ABORT_RETRY, &ha->dpc_flags)) {
3182                                 if (ha->isp_abort_cnt == 0) {
3183                                         qla_printk(KERN_WARNING, ha,
3184                                             "ISP error recovery failed - "
3185                                             "board disabled\n");
3186                                         /*
3187                                          * The next call disables the board
3188                                          * completely.
3189                                          */
3190                                         ha->isp_ops.reset_adapter(ha);
3191                                         ha->flags.online = 0;
3192                                         clear_bit(ISP_ABORT_RETRY,
3193                                             &ha->dpc_flags);
3194                                         status = 0;
3195                                 } else { /* schedule another ISP abort */
3196                                         ha->isp_abort_cnt--;
3197                                         DEBUG(printk("qla%ld: ISP abort - "
3198                                             "retry remaining %d\n",
3199                                             ha->host_no, ha->isp_abort_cnt));
3200                                         status = 1;
3201                                 }
3202                         } else {
3203                                 ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT;
3204                                 DEBUG(printk("qla2x00(%ld): ISP error recovery "
3205                                     "- retrying (%d) more times\n",
3206                                     ha->host_no, ha->isp_abort_cnt));
3207                                 set_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
3208                                 status = 1;
3209                         }
3210                 }
3211
3212         }
3213
3214         if (status) {
3215                 qla_printk(KERN_INFO, ha,
3216                         "qla2x00_abort_isp: **** FAILED ****\n");
3217         } else {
3218                 DEBUG(printk(KERN_INFO
3219                                 "qla2x00_abort_isp(%ld): exiting.\n",
3220                                 ha->host_no));
3221         }
3222
3223         return(status);
3224 }
3225
3226 /*
3227 *  qla2x00_restart_isp
3228 *      restarts the ISP after a reset
3229 *
3230 * Input:
3231 *      ha = adapter block pointer.
3232 *
3233 * Returns:
3234 *      0 = success
3235 */
3236 static int
3237 qla2x00_restart_isp(scsi_qla_host_t *ha)
3238 {
3239         uint8_t         status = 0;
3240         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3241         unsigned long   flags = 0;
3242         uint32_t wait_time;
3243
3244         /* If firmware needs to be loaded */
3245         if (qla2x00_isp_firmware(ha)) {
3246                 ha->flags.online = 0;
3247                 if (!(status = ha->isp_ops.chip_diag(ha))) {
3248                         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
3249                                 status = qla2x00_setup_chip(ha);
3250                                 goto done;
3251                         }
3252
3253                         spin_lock_irqsave(&ha->hardware_lock, flags);
3254
3255                         if (!IS_QLA24XX(ha) && !IS_QLA54XX(ha)) {
3256                                 /*
3257                                  * Disable SRAM, Instruction RAM and GP RAM
3258                                  * parity.
3259                                  */
3260                                 WRT_REG_WORD(&reg->hccr,
3261                                     (HCCR_ENABLE_PARITY + 0x0));
3262                                 RD_REG_WORD(&reg->hccr);
3263                         }
3264
3265                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3266
3267                         status = qla2x00_setup_chip(ha);
3268
3269                         spin_lock_irqsave(&ha->hardware_lock, flags);
3270
3271                         if (!IS_QLA24XX(ha) && !IS_QLA54XX(ha)) {
3272                                 /* Enable proper parity */
3273                                 if (IS_QLA2300(ha))
3274                                         /* SRAM parity */
3275                                         WRT_REG_WORD(&reg->hccr,
3276                                             (HCCR_ENABLE_PARITY + 0x1));
3277                                 else
3278                                         /*
3279                                          * SRAM, Instruction RAM and GP RAM
3280                                          * parity.
3281                                          */
3282                                         WRT_REG_WORD(&reg->hccr,
3283                                             (HCCR_ENABLE_PARITY + 0x7));
3284                                 RD_REG_WORD(&reg->hccr);
3285                         }
3286
3287                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3288                 }
3289         }
3290
3291  done:
3292         if (!status && !(status = qla2x00_init_rings(ha))) {
3293                 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
3294                 if (!(status = qla2x00_fw_ready(ha))) {
3295                         DEBUG(printk("%s(): Start configure loop, "
3296                             "status = %d\n", __func__, status));
3297
3298                         /* Issue a marker after FW becomes ready. */
3299                         qla2x00_marker(ha, 0, 0, MK_SYNC_ALL);
3300
3301                         ha->flags.online = 1;
3302                         /* Wait at most MAX_TARGET RSCNs for a stable link. */
3303                         wait_time = 256;
3304                         do {
3305                                 clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
3306                                 qla2x00_configure_loop(ha);
3307                                 wait_time--;
3308                         } while (!atomic_read(&ha->loop_down_timer) &&
3309                                 !(test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) &&
3310                                 wait_time &&
3311                                 (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)));
3312                 }
3313
3314                 /* if no cable then assume it's good */
3315                 if ((ha->device_flags & DFLG_NO_CABLE))
3316                         status = 0;
3317
3318                 DEBUG(printk("%s(): Configure loop done, status = 0x%x\n",
3319                                 __func__,
3320                                 status));
3321         }
3322         return (status);
3323 }
3324
3325 /*
3326 * qla2x00_reset_adapter
3327 *      Reset adapter.
3328 *
3329 * Input:
3330 *      ha = adapter block pointer.
3331 */
3332 void
3333 qla2x00_reset_adapter(scsi_qla_host_t *ha)
3334 {
3335         unsigned long flags = 0;
3336         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3337
3338         ha->flags.online = 0;
3339         ha->isp_ops.disable_intrs(ha);
3340
3341         spin_lock_irqsave(&ha->hardware_lock, flags);
3342         WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
3343         RD_REG_WORD(&reg->hccr);                        /* PCI Posting. */
3344         WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
3345         RD_REG_WORD(&reg->hccr);                        /* PCI Posting. */
3346         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3347 }
3348
3349 void
3350 qla24xx_reset_adapter(scsi_qla_host_t *ha)
3351 {
3352         unsigned long flags = 0;
3353         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
3354
3355         ha->flags.online = 0;
3356         ha->isp_ops.disable_intrs(ha);
3357
3358         spin_lock_irqsave(&ha->hardware_lock, flags);
3359         WRT_REG_DWORD(&reg->hccr, HCCRX_SET_RISC_RESET);
3360         RD_REG_DWORD(&reg->hccr);
3361         WRT_REG_DWORD(&reg->hccr, HCCRX_REL_RISC_PAUSE);
3362         RD_REG_DWORD(&reg->hccr);
3363         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3364 }
3365
3366 /* On sparc systems, obtain port and node WWN from firmware
3367  * properties.
3368  */
3369 static void qla24xx_nvram_wwn_from_ofw(scsi_qla_host_t *ha, struct nvram_24xx *nv)
3370 {
3371 #ifdef CONFIG_SPARC
3372         struct pci_dev *pdev = ha->pdev;
3373         struct pcidev_cookie *pcp = pdev->sysdata;
3374         struct device_node *dp = pcp->prom_node;
3375         u8 *val;
3376         int len;
3377
3378         val = of_get_property(dp, "port-wwn", &len);
3379         if (val && len >= WWN_SIZE)
3380                 memcpy(nv->port_name, val, WWN_SIZE);
3381
3382         val = of_get_property(dp, "node-wwn", &len);
3383         if (val && len >= WWN_SIZE)
3384                 memcpy(nv->node_name, val, WWN_SIZE);
3385 #endif
3386 }
3387
3388 int
3389 qla24xx_nvram_config(scsi_qla_host_t *ha)
3390 {
3391         int   rval;
3392         struct init_cb_24xx *icb;
3393         struct nvram_24xx *nv;
3394         uint32_t *dptr;
3395         uint8_t  *dptr1, *dptr2;
3396         uint32_t chksum;
3397         uint16_t cnt;
3398
3399         rval = QLA_SUCCESS;
3400         icb = (struct init_cb_24xx *)ha->init_cb;
3401         nv = (struct nvram_24xx *)ha->request_ring;
3402
3403         /* Determine NVRAM starting address. */
3404         ha->nvram_size = sizeof(struct nvram_24xx);
3405         ha->nvram_base = FA_NVRAM_FUNC0_ADDR;
3406         ha->vpd_size = FA_NVRAM_VPD_SIZE;
3407         ha->vpd_base = FA_NVRAM_VPD0_ADDR;
3408         if (PCI_FUNC(ha->pdev->devfn)) {
3409                 ha->nvram_base = FA_NVRAM_FUNC1_ADDR;
3410                 ha->vpd_base = FA_NVRAM_VPD1_ADDR;
3411         }
3412
3413         /* Get NVRAM data and calculate checksum. */
3414         dptr = (uint32_t *)nv;
3415         ha->isp_ops.read_nvram(ha, (uint8_t *)dptr, ha->nvram_base,
3416             ha->nvram_size);
3417         for (cnt = 0, chksum = 0; cnt < ha->nvram_size >> 2; cnt++)
3418                 chksum += le32_to_cpu(*dptr++);
3419
3420         DEBUG5(printk("scsi(%ld): Contents of NVRAM\n", ha->host_no));
3421         DEBUG5(qla2x00_dump_buffer((uint8_t *)ha->request_ring,
3422             ha->nvram_size));
3423
3424         /* Bad NVRAM data, set defaults parameters. */
3425         if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' || nv->id[2] != 'P'
3426             || nv->id[3] != ' ' ||
3427             nv->nvram_version < __constant_cpu_to_le16(ICB_VERSION)) {
3428                 /* Reset NVRAM data. */
3429                 qla_printk(KERN_WARNING, ha, "Inconsistent NVRAM detected: "
3430                     "checksum=0x%x id=%c version=0x%x.\n", chksum, nv->id[0],
3431                     le16_to_cpu(nv->nvram_version));
3432                 qla_printk(KERN_WARNING, ha, "Falling back to functioning (yet "
3433                     "invalid -- WWPN) defaults.\n");
3434
3435                 /*
3436                  * Set default initialization control block.
3437                  */
3438                 memset(nv, 0, ha->nvram_size);
3439                 nv->nvram_version = __constant_cpu_to_le16(ICB_VERSION);
3440                 nv->version = __constant_cpu_to_le16(ICB_VERSION);
3441                 nv->frame_payload_size = __constant_cpu_to_le16(2048);
3442                 nv->execution_throttle = __constant_cpu_to_le16(0xFFFF);
3443                 nv->exchange_count = __constant_cpu_to_le16(0);
3444                 nv->hard_address = __constant_cpu_to_le16(124);
3445                 nv->port_name[0] = 0x21;
3446                 nv->port_name[1] = 0x00 + PCI_FUNC(ha->pdev->devfn);
3447                 nv->port_name[2] = 0x00;
3448                 nv->port_name[3] = 0xe0;
3449                 nv->port_name[4] = 0x8b;
3450                 nv->port_name[5] = 0x1c;
3451                 nv->port_name[6] = 0x55;
3452                 nv->port_name[7] = 0x86;
3453                 nv->node_name[0] = 0x20;
3454                 nv->node_name[1] = 0x00;
3455                 nv->node_name[2] = 0x00;
3456                 nv->node_name[3] = 0xe0;
3457                 nv->node_name[4] = 0x8b;
3458                 nv->node_name[5] = 0x1c;
3459                 nv->node_name[6] = 0x55;
3460                 nv->node_name[7] = 0x86;
3461                 qla24xx_nvram_wwn_from_ofw(ha, nv);
3462                 nv->login_retry_count = __constant_cpu_to_le16(8);
3463                 nv->interrupt_delay_timer = __constant_cpu_to_le16(0);
3464                 nv->login_timeout = __constant_cpu_to_le16(0);
3465                 nv->firmware_options_1 =
3466                     __constant_cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1);
3467                 nv->firmware_options_2 = __constant_cpu_to_le32(2 << 4);
3468                 nv->firmware_options_2 |= __constant_cpu_to_le32(BIT_12);
3469                 nv->firmware_options_3 = __constant_cpu_to_le32(2 << 13);
3470                 nv->host_p = __constant_cpu_to_le32(BIT_11|BIT_10);
3471                 nv->efi_parameters = __constant_cpu_to_le32(0);
3472                 nv->reset_delay = 5;
3473                 nv->max_luns_per_target = __constant_cpu_to_le16(128);
3474                 nv->port_down_retry_count = __constant_cpu_to_le16(30);
3475                 nv->link_down_timeout = __constant_cpu_to_le16(30);
3476
3477                 rval = 1;
3478         }
3479
3480         /* Reset Initialization control block */
3481         memset(icb, 0, sizeof(struct init_cb_24xx));
3482
3483         /* Copy 1st segment. */
3484         dptr1 = (uint8_t *)icb;
3485         dptr2 = (uint8_t *)&nv->version;
3486         cnt = (uint8_t *)&icb->response_q_inpointer - (uint8_t *)&icb->version;
3487         while (cnt--)
3488                 *dptr1++ = *dptr2++;
3489
3490         icb->login_retry_count = nv->login_retry_count;
3491         icb->link_down_on_nos = nv->link_down_on_nos;
3492
3493         /* Copy 2nd segment. */
3494         dptr1 = (uint8_t *)&icb->interrupt_delay_timer;
3495         dptr2 = (uint8_t *)&nv->interrupt_delay_timer;
3496         cnt = (uint8_t *)&icb->reserved_3 -
3497             (uint8_t *)&icb->interrupt_delay_timer;
3498         while (cnt--)
3499                 *dptr1++ = *dptr2++;
3500
3501         /*
3502          * Setup driver NVRAM options.
3503          */
3504         qla2x00_set_model_info(ha, nv->model_name, sizeof(nv->model_name),
3505             "QLA2462");
3506
3507         /* Use alternate WWN? */
3508         if (nv->host_p & __constant_cpu_to_le32(BIT_15)) {
3509                 memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
3510                 memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
3511         }
3512
3513         /* Prepare nodename */
3514         if ((icb->firmware_options_1 & __constant_cpu_to_le32(BIT_14)) == 0) {
3515                 /*
3516                  * Firmware will apply the following mask if the nodename was
3517                  * not provided.
3518                  */
3519                 memcpy(icb->node_name, icb->port_name, WWN_SIZE);
3520                 icb->node_name[0] &= 0xF0;
3521         }
3522
3523         /* Set host adapter parameters. */
3524         ha->flags.disable_risc_code_load = 0;
3525         ha->flags.enable_lip_reset = 0;
3526         ha->flags.enable_lip_full_login =
3527             le32_to_cpu(nv->host_p) & BIT_10 ? 1: 0;
3528         ha->flags.enable_target_reset =
3529             le32_to_cpu(nv->host_p) & BIT_11 ? 1: 0;
3530         ha->flags.enable_led_scheme = 0;
3531         ha->flags.disable_serdes = le32_to_cpu(nv->host_p) & BIT_5 ? 1: 0;
3532
3533         ha->operating_mode = (le32_to_cpu(icb->firmware_options_2) &
3534             (BIT_6 | BIT_5 | BIT_4)) >> 4;
3535
3536         memcpy(ha->fw_seriallink_options24, nv->seriallink_options,
3537             sizeof(ha->fw_seriallink_options24));
3538
3539         /* save HBA serial number */
3540         ha->serial0 = icb->port_name[5];
3541         ha->serial1 = icb->port_name[6];
3542         ha->serial2 = icb->port_name[7];
3543         ha->node_name = icb->node_name;
3544         ha->port_name = icb->port_name;
3545
3546         icb->execution_throttle = __constant_cpu_to_le16(0xFFFF);
3547
3548         ha->retry_count = le16_to_cpu(nv->login_retry_count);
3549
3550         /* Set minimum login_timeout to 4 seconds. */
3551         if (le16_to_cpu(nv->login_timeout) < ql2xlogintimeout)
3552                 nv->login_timeout = cpu_to_le16(ql2xlogintimeout);
3553         if (le16_to_cpu(nv->login_timeout) < 4)
3554                 nv->login_timeout = __constant_cpu_to_le16(4);
3555         ha->login_timeout = le16_to_cpu(nv->login_timeout);
3556         icb->login_timeout = cpu_to_le16(nv->login_timeout);
3557
3558         /* Set minimum RATOV to 200 tenths of a second. */
3559         ha->r_a_tov = 200;
3560
3561         ha->loop_reset_delay = nv->reset_delay;
3562
3563         /* Link Down Timeout = 0:
3564          *
3565          *      When Port Down timer expires we will start returning
3566          *      I/O's to OS with "DID_NO_CONNECT".
3567          *
3568          * Link Down Timeout != 0:
3569          *
3570          *       The driver waits for the link to come up after link down
3571          *       before returning I/Os to OS with "DID_NO_CONNECT".
3572          */
3573         if (le16_to_cpu(nv->link_down_timeout) == 0) {
3574                 ha->loop_down_abort_time =
3575                     (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
3576         } else {
3577                 ha->link_down_timeout = le16_to_cpu(nv->link_down_timeout);
3578                 ha->loop_down_abort_time =
3579                     (LOOP_DOWN_TIME - ha->link_down_timeout);
3580         }
3581
3582         /* Need enough time to try and get the port back. */
3583         ha->port_down_retry_count = le16_to_cpu(nv->port_down_retry_count);
3584         if (qlport_down_retry)
3585                 ha->port_down_retry_count = qlport_down_retry;
3586
3587         /* Set login_retry_count */
3588         ha->login_retry_count  = le16_to_cpu(nv->login_retry_count);
3589         if (ha->port_down_retry_count ==
3590             le16_to_cpu(nv->port_down_retry_count) &&
3591             ha->port_down_retry_count > 3)
3592                 ha->login_retry_count = ha->port_down_retry_count;
3593         else if (ha->port_down_retry_count > (int)ha->login_retry_count)
3594                 ha->login_retry_count = ha->port_down_retry_count;
3595         if (ql2xloginretrycount)
3596                 ha->login_retry_count = ql2xloginretrycount;
3597
3598         /* Enable ZIO. */
3599         if (!ha->flags.init_done) {
3600                 ha->zio_mode = le32_to_cpu(icb->firmware_options_2) &
3601                     (BIT_3 | BIT_2 | BIT_1 | BIT_0);
3602                 ha->zio_timer = le16_to_cpu(icb->interrupt_delay_timer) ?
3603                     le16_to_cpu(icb->interrupt_delay_timer): 2;
3604         }
3605         icb->firmware_options_2 &= __constant_cpu_to_le32(
3606             ~(BIT_3 | BIT_2 | BIT_1 | BIT_0));
3607         ha->flags.process_response_queue = 0;
3608         if (ha->zio_mode != QLA_ZIO_DISABLED) {
3609                 ha->zio_mode = QLA_ZIO_MODE_6;
3610
3611                 DEBUG2(printk("scsi(%ld): ZIO mode %d enabled; timer delay "
3612                     "(%d us).\n", ha->host_no, ha->zio_mode,
3613                     ha->zio_timer * 100));
3614                 qla_printk(KERN_INFO, ha,
3615                     "ZIO mode %d enabled; timer delay (%d us).\n",
3616                     ha->zio_mode, ha->zio_timer * 100);
3617
3618                 icb->firmware_options_2 |= cpu_to_le32(
3619                     (uint32_t)ha->zio_mode);
3620                 icb->interrupt_delay_timer = cpu_to_le16(ha->zio_timer);
3621                 ha->flags.process_response_queue = 1;
3622         }
3623
3624         if (rval) {
3625                 DEBUG2_3(printk(KERN_WARNING
3626                     "scsi(%ld): NVRAM configuration failed!\n", ha->host_no));
3627         }
3628         return (rval);
3629 }
3630
3631 static int
3632 qla24xx_load_risc_flash(scsi_qla_host_t *ha, uint32_t *srisc_addr)
3633 {
3634         int     rval;
3635         int     segments, fragment;
3636         uint32_t faddr;
3637         uint32_t *dcode, dlen;
3638         uint32_t risc_addr;
3639         uint32_t risc_size;
3640         uint32_t i;
3641
3642         rval = QLA_SUCCESS;
3643
3644         segments = FA_RISC_CODE_SEGMENTS;
3645         faddr = FA_RISC_CODE_ADDR;
3646         dcode = (uint32_t *)ha->request_ring;
3647         *srisc_addr = 0;
3648
3649         /* Validate firmware image by checking version. */
3650         qla24xx_read_flash_data(ha, dcode, faddr + 4, 4);
3651         for (i = 0; i < 4; i++)
3652                 dcode[i] = be32_to_cpu(dcode[i]);
3653         if ((dcode[0] == 0xffffffff && dcode[1] == 0xffffffff &&
3654             dcode[2] == 0xffffffff && dcode[3] == 0xffffffff) ||
3655             (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
3656                 dcode[3] == 0)) {
3657                 qla_printk(KERN_WARNING, ha,
3658                     "Unable to verify integrity of flash firmware image!\n");
3659                 qla_printk(KERN_WARNING, ha,
3660                     "Firmware data: %08x %08x %08x %08x!\n", dcode[0],
3661                     dcode[1], dcode[2], dcode[3]);
3662
3663                 return QLA_FUNCTION_FAILED;
3664         }
3665
3666         while (segments && rval == QLA_SUCCESS) {
3667                 /* Read segment's load information. */
3668                 qla24xx_read_flash_data(ha, dcode, faddr, 4);
3669
3670                 risc_addr = be32_to_cpu(dcode[2]);
3671                 *srisc_addr = *srisc_addr == 0 ? risc_addr : *srisc_addr;
3672                 risc_size = be32_to_cpu(dcode[3]);
3673
3674                 fragment = 0;
3675                 while (risc_size > 0 && rval == QLA_SUCCESS) {
3676                         dlen = (uint32_t)(ha->fw_transfer_size >> 2);
3677                         if (dlen > risc_size)
3678                                 dlen = risc_size;
3679
3680                         DEBUG7(printk("scsi(%ld): Loading risc segment@ risc "
3681                             "addr %x, number of dwords 0x%x, offset 0x%x.\n",
3682                             ha->host_no, risc_addr, dlen, faddr));
3683
3684                         qla24xx_read_flash_data(ha, dcode, faddr, dlen);
3685                         for (i = 0; i < dlen; i++)
3686                                 dcode[i] = swab32(dcode[i]);
3687
3688                         rval = qla2x00_load_ram(ha, ha->request_dma, risc_addr,
3689                             dlen);
3690                         if (rval) {
3691                                 DEBUG(printk("scsi(%ld):[ERROR] Failed to load "
3692                                     "segment %d of firmware\n", ha->host_no,
3693                                     fragment));
3694                                 qla_printk(KERN_WARNING, ha,
3695                                     "[ERROR] Failed to load segment %d of "
3696                                     "firmware\n", fragment);
3697                                 break;
3698                         }
3699
3700                         faddr += dlen;
3701                         risc_addr += dlen;
3702                         risc_size -= dlen;
3703                         fragment++;
3704                 }
3705
3706                 /* Next segment. */
3707                 segments--;
3708         }
3709
3710         return rval;
3711 }
3712
3713 #define QLA_FW_URL "ftp://ftp.qlogic.com/outgoing/linux/firmware/"
3714
3715 int
3716 qla2x00_load_risc(scsi_qla_host_t *ha, uint32_t *srisc_addr)
3717 {
3718         int     rval;
3719         int     i, fragment;
3720         uint16_t *wcode, *fwcode;
3721         uint32_t risc_addr, risc_size, fwclen, wlen, *seg;
3722         struct fw_blob *blob;
3723
3724         /* Load firmware blob. */
3725         blob = qla2x00_request_firmware(ha);
3726         if (!blob) {
3727                 qla_printk(KERN_ERR, ha, "Firmware image unavailable.\n");
3728                 qla_printk(KERN_ERR, ha, "Firmware images can be retrieved "
3729                     "from: " QLA_FW_URL ".\n");
3730                 return QLA_FUNCTION_FAILED;
3731         }
3732
3733         rval = QLA_SUCCESS;
3734
3735         wcode = (uint16_t *)ha->request_ring;
3736         *srisc_addr = 0;
3737         fwcode = (uint16_t *)blob->fw->data;
3738         fwclen = 0;
3739
3740         /* Validate firmware image by checking version. */
3741         if (blob->fw->size < 8 * sizeof(uint16_t)) {
3742                 qla_printk(KERN_WARNING, ha,
3743                     "Unable to verify integrity of firmware image (%Zd)!\n",
3744                     blob->fw->size);
3745                 goto fail_fw_integrity;
3746         }
3747         for (i = 0; i < 4; i++)
3748                 wcode[i] = be16_to_cpu(fwcode[i + 4]);
3749         if ((wcode[0] == 0xffff && wcode[1] == 0xffff && wcode[2] == 0xffff &&
3750             wcode[3] == 0xffff) || (wcode[0] == 0 && wcode[1] == 0 &&
3751                 wcode[2] == 0 && wcode[3] == 0)) {
3752                 qla_printk(KERN_WARNING, ha,
3753                     "Unable to verify integrity of firmware image!\n");
3754                 qla_printk(KERN_WARNING, ha,
3755                     "Firmware data: %04x %04x %04x %04x!\n", wcode[0],
3756                     wcode[1], wcode[2], wcode[3]);
3757                 goto fail_fw_integrity;
3758         }
3759
3760         seg = blob->segs;
3761         while (*seg && rval == QLA_SUCCESS) {
3762                 risc_addr = *seg;
3763                 *srisc_addr = *srisc_addr == 0 ? *seg : *srisc_addr;
3764                 risc_size = be16_to_cpu(fwcode[3]);
3765
3766                 /* Validate firmware image size. */
3767                 fwclen += risc_size * sizeof(uint16_t);
3768                 if (blob->fw->size < fwclen) {
3769                         qla_printk(KERN_WARNING, ha,
3770                             "Unable to verify integrity of firmware image "
3771                             "(%Zd)!\n", blob->fw->size);
3772                         goto fail_fw_integrity;
3773                 }
3774
3775                 fragment = 0;
3776                 while (risc_size > 0 && rval == QLA_SUCCESS) {
3777                         wlen = (uint16_t)(ha->fw_transfer_size >> 1);
3778                         if (wlen > risc_size)
3779                                 wlen = risc_size;
3780
3781                         DEBUG7(printk("scsi(%ld): Loading risc segment@ risc "
3782                             "addr %x, number of words 0x%x.\n", ha->host_no,
3783                             risc_addr, wlen));
3784
3785                         for (i = 0; i < wlen; i++)
3786                                 wcode[i] = swab16(fwcode[i]);
3787
3788                         rval = qla2x00_load_ram(ha, ha->request_dma, risc_addr,
3789                             wlen);
3790                         if (rval) {
3791                                 DEBUG(printk("scsi(%ld):[ERROR] Failed to load "
3792                                     "segment %d of firmware\n", ha->host_no,
3793                                     fragment));
3794                                 qla_printk(KERN_WARNING, ha,
3795                                     "[ERROR] Failed to load segment %d of "
3796                                     "firmware\n", fragment);
3797                                 break;
3798                         }
3799
3800                         fwcode += wlen;
3801                         risc_addr += wlen;
3802                         risc_size -= wlen;
3803                         fragment++;
3804                 }
3805
3806                 /* Next segment. */
3807                 seg++;
3808         }
3809         return rval;
3810
3811 fail_fw_integrity:
3812         return QLA_FUNCTION_FAILED;
3813 }
3814
3815 int
3816 qla24xx_load_risc(scsi_qla_host_t *ha, uint32_t *srisc_addr)
3817 {
3818         int     rval;
3819         int     segments, fragment;
3820         uint32_t *dcode, dlen;
3821         uint32_t risc_addr;
3822         uint32_t risc_size;
3823         uint32_t i;
3824         struct fw_blob *blob;
3825         uint32_t *fwcode, fwclen;
3826
3827         /* Load firmware blob. */
3828         blob = qla2x00_request_firmware(ha);
3829         if (!blob) {
3830                 qla_printk(KERN_ERR, ha, "Firmware image unavailable.\n");
3831                 qla_printk(KERN_ERR, ha, "Firmware images can be retrieved "
3832                     "from: " QLA_FW_URL ".\n");
3833
3834                 /* Try to load RISC code from flash. */
3835                 qla_printk(KERN_ERR, ha, "Attempting to load (potentially "
3836                     "outdated) firmware from flash.\n");
3837                 return qla24xx_load_risc_flash(ha, srisc_addr);
3838         }
3839
3840         rval = QLA_SUCCESS;
3841
3842         segments = FA_RISC_CODE_SEGMENTS;
3843         dcode = (uint32_t *)ha->request_ring;
3844         *srisc_addr = 0;
3845         fwcode = (uint32_t *)blob->fw->data;
3846         fwclen = 0;
3847
3848         /* Validate firmware image by checking version. */
3849         if (blob->fw->size < 8 * sizeof(uint32_t)) {
3850                 qla_printk(KERN_WARNING, ha,
3851                     "Unable to verify integrity of firmware image (%Zd)!\n",
3852                     blob->fw->size);
3853                 goto fail_fw_integrity;
3854         }
3855         for (i = 0; i < 4; i++)
3856                 dcode[i] = be32_to_cpu(fwcode[i + 4]);
3857         if ((dcode[0] == 0xffffffff && dcode[1] == 0xffffffff &&
3858             dcode[2] == 0xffffffff && dcode[3] == 0xffffffff) ||
3859             (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
3860                 dcode[3] == 0)) {
3861                 qla_printk(KERN_WARNING, ha,
3862                     "Unable to verify integrity of firmware image!\n");
3863                 qla_printk(KERN_WARNING, ha,
3864                     "Firmware data: %08x %08x %08x %08x!\n", dcode[0],
3865                     dcode[1], dcode[2], dcode[3]);
3866                 goto fail_fw_integrity;
3867         }
3868
3869         while (segments && rval == QLA_SUCCESS) {
3870                 risc_addr = be32_to_cpu(fwcode[2]);
3871                 *srisc_addr = *srisc_addr == 0 ? risc_addr : *srisc_addr;
3872                 risc_size = be32_to_cpu(fwcode[3]);
3873
3874                 /* Validate firmware image size. */
3875                 fwclen += risc_size * sizeof(uint32_t);
3876                 if (blob->fw->size < fwclen) {
3877                         qla_printk(KERN_WARNING, ha,
3878                             "Unable to verify integrity of firmware image "
3879                             "(%Zd)!\n", blob->fw->size);
3880
3881                         goto fail_fw_integrity;
3882                 }
3883
3884                 fragment = 0;
3885                 while (risc_size > 0 && rval == QLA_SUCCESS) {
3886                         dlen = (uint32_t)(ha->fw_transfer_size >> 2);
3887                         if (dlen > risc_size)
3888                                 dlen = risc_size;
3889
3890                         DEBUG7(printk("scsi(%ld): Loading risc segment@ risc "
3891                             "addr %x, number of dwords 0x%x.\n", ha->host_no,
3892                             risc_addr, dlen));
3893
3894                         for (i = 0; i < dlen; i++)
3895                                 dcode[i] = swab32(fwcode[i]);
3896
3897                         rval = qla2x00_load_ram(ha, ha->request_dma, risc_addr,
3898                             dlen);
3899                         if (rval) {
3900                                 DEBUG(printk("scsi(%ld):[ERROR] Failed to load "
3901                                     "segment %d of firmware\n", ha->host_no,
3902                                     fragment));
3903                                 qla_printk(KERN_WARNING, ha,
3904                                     "[ERROR] Failed to load segment %d of "
3905                                     "firmware\n", fragment);
3906                                 break;
3907                         }
3908
3909                         fwcode += dlen;
3910                         risc_addr += dlen;
3911                         risc_size -= dlen;
3912                         fragment++;
3913                 }
3914
3915                 /* Next segment. */
3916                 segments--;
3917         }
3918         return rval;
3919
3920 fail_fw_integrity:
3921         return QLA_FUNCTION_FAILED;
3922 }
3923
3924 void
3925 qla2x00_try_to_stop_firmware(scsi_qla_host_t *ha)
3926 {
3927         int ret, retries;
3928
3929         if (!IS_QLA24XX(ha) && !IS_QLA54XX(ha))
3930                 return;
3931         if (!ha->fw_major_version)
3932                 return;
3933
3934         ret = qla2x00_stop_firmware(ha);
3935         for (retries = 5; ret != QLA_SUCCESS && retries ; retries--) {
3936                 qla2x00_reset_chip(ha);
3937                 if (qla2x00_chip_diag(ha) != QLA_SUCCESS)
3938                         continue;
3939                 if (qla2x00_setup_chip(ha) != QLA_SUCCESS)
3940                         continue;
3941                 qla_printk(KERN_INFO, ha,
3942                     "Attempting retry of stop-firmware command...\n");
3943                 ret = qla2x00_stop_firmware(ha);
3944         }
3945 }