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 /* XXX(hch): this is ugly, but we don't want to pull in exioctl.h */
  15 #ifndef EXT_IS_LUN_BIT_SET
  16 #define EXT_IS_LUN_BIT_SET(P,L) \
  17     (((P)->mask[L/8] & (0x80 >> (L%8)))?1:0)
  18 #define EXT_SET_LUN_BIT(P,L) \
  19     ((P)->mask[L/8] |= (0x80 >> (L%8)))
  20 #endif
  21
  22 /*
  23 *  QLogic ISP2x00 Hardware Support Function Prototypes.
  24 */
  25 static int qla2x00_isp_firmware(scsi_qla_host_t *);
  26 static void qla2x00_resize_request_q(scsi_qla_host_t *);
  27 static int qla2x00_setup_chip(scsi_qla_host_t *);
  28 static void qla2x00_init_response_q_entries(scsi_qla_host_t *);
  29 static int qla2x00_init_rings(scsi_qla_host_t *);
  30 static int qla2x00_fw_ready(scsi_qla_host_t *);
  31 static int qla2x00_configure_hba(scsi_qla_host_t *);
  32 static int qla2x00_configure_loop(scsi_qla_host_t *);
  33 static int qla2x00_configure_local_loop(scsi_qla_host_t *);
  34 static int qla2x00_configure_fabric(scsi_qla_host_t *);
  35 static int qla2x00_find_all_fabric_devs(scsi_qla_host_t *, struct list_head *);
  36 static int qla2x00_device_resync(scsi_qla_host_t *);
  37 static int qla2x00_fabric_dev_login(scsi_qla_host_t *, fc_port_t *,
  38     uint16_t *);
  39
  40 static int qla2x00_restart_isp(scsi_qla_host_t *);
  41
  42 /****************************************************************************/
  43 /*                QLogic ISP2x00 Hardware Support Functions.                */
  44 /****************************************************************************/
  45
  46 /*
  47 * qla2x00_initialize_adapter
  48 *      Initialize board.
  49 *
  50 * Input:
  51 *      ha = adapter block pointer.
  52 *
  53 * Returns:
  54 *      0 = success
  55 */
  56 int
  57 qla2x00_initialize_adapter(scsi_qla_host_t *ha)
  58 {
  59         int     rval;
  60         uint8_t restart_risc = 0;
  61         uint8_t retry;
  62         uint32_t wait_time;
  63
  64         /* Clear adapter flags. */
  65         ha->flags.online = 0;
  66         ha->flags.reset_active = 0;
  67         atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
  68         atomic_set(&ha->loop_state, LOOP_DOWN);
  69         ha->device_flags = 0;
  70         ha->dpc_flags = 0;
  71         ha->flags.management_server_logged_in = 0;
  72         ha->marker_needed = 0;
  73         ha->mbx_flags = 0;
  74         ha->isp_abort_cnt = 0;
  75         ha->beacon_blink_led = 0;
  76         set_bit(REGISTER_FDMI_NEEDED, &ha->dpc_flags);
  77
  78         qla_printk(KERN_INFO, ha, "Configuring PCI space...\n");
  79         rval = ha->isp_ops.pci_config(ha);
  80         if (rval) {
  81                 DEBUG2(printk("scsi(%ld): Unable to configure PCI space=n",
  82                     ha->host_no));
  83                 return (rval);
  84         }
  85
  86         ha->isp_ops.reset_chip(ha);
  87
  88         qla_printk(KERN_INFO, ha, "Configure NVRAM parameters...\n");
  89
  90         ha->isp_ops.nvram_config(ha);
  91
  92         qla_printk(KERN_INFO, ha, "Verifying loaded RISC code...\n");
  93
  94         retry = 10;
  95         /*
  96          * Try to configure the loop.
  97          */
  98         do {
  99                 restart_risc = 0;
 100
 101                 /* If firmware needs to be loaded */
 102                 if (qla2x00_isp_firmware(ha) != QLA_SUCCESS) {
 103                         if ((rval = ha->isp_ops.chip_diag(ha)) == QLA_SUCCESS) {
 104                                 rval = qla2x00_setup_chip(ha);
 105                         }
 106                 }
 107
 108                 if (rval == QLA_SUCCESS &&
 109                     (rval = qla2x00_init_rings(ha)) == QLA_SUCCESS) {
 110 check_fw_ready_again:
 111                         /*
 112                          * Wait for a successful LIP up to a maximum
 113                          * of (in seconds): RISC login timeout value,
 114                          * RISC retry count value, and port down retry
 115                          * value OR a minimum of 4 seconds OR If no
 116                          * cable, only 5 seconds.
 117                          */
 118                         rval = qla2x00_fw_ready(ha);
 119                         if (rval == QLA_SUCCESS) {
 120                                 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
 121
 122                                 /* Issue a marker after FW becomes ready. */
 123                                 qla2x00_marker(ha, 0, 0, MK_SYNC_ALL);
 124
 125                                 /*
 126                                  * Wait at most MAX_TARGET RSCNs for a stable
 127                                  * link.
 128                                  */
 129                                 wait_time = 256;
 130                                 do {
 131                                         clear_bit(LOOP_RESYNC_NEEDED,
 132                                             &ha->dpc_flags);
 133                                         rval = qla2x00_configure_loop(ha);
 134
 135                                         if (test_and_clear_bit(ISP_ABORT_NEEDED,
 136                                             &ha->dpc_flags)) {
 137                                                 restart_risc = 1;
 138                                                 break;
 139                                         }
 140
 141                                         /*
 142                                          * If loop state change while we were
 143                                          * discoverying devices then wait for
 144                                          * LIP to complete
 145                                          */
 146
 147                                         if (atomic_read(&ha->loop_state) !=
 148                                             LOOP_READY && retry--) {
 149                                                 goto check_fw_ready_again;
 150                                         }
 151                                         wait_time--;
 152                                 } while (!atomic_read(&ha->loop_down_timer) &&
 153                                     retry &&
 154                                     wait_time &&
 155                                     (test_bit(LOOP_RESYNC_NEEDED,
 156                                         &ha->dpc_flags)));
 157
 158                                 if (wait_time == 0)
 159                                         rval = QLA_FUNCTION_FAILED;
 160                         } else if (ha->device_flags & DFLG_NO_CABLE)
 161                                 /* If no cable, then all is good. */
 162                                 rval = QLA_SUCCESS;
 163                 }
 164         } while (restart_risc && retry--);
 165
 166         if (rval == QLA_SUCCESS) {
 167                 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
 168                 qla2x00_marker(ha, 0, 0, MK_SYNC_ALL);
 169                 ha->marker_needed = 0;
 170
 171                 ha->flags.online = 1;
 172         } else {
 173                 DEBUG2_3(printk("%s(): **** FAILED ****\n", __func__));
 174         }
 175
 176         return (rval);
 177 }
 178
 179 /**
 180  * qla2100_pci_config() - Setup ISP21xx PCI configuration registers.
 181  * @ha: HA context
 182  *
 183  * Returns 0 on success.
 184  */
 185 int
 186 qla2100_pci_config(scsi_qla_host_t *ha)
 187 {
 188         uint16_t w, mwi;
 189         uint32_t d;
 190         unsigned long flags;
 191         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 192
 193         pci_set_master(ha->pdev);
 194         mwi = 0;
 195         if (pci_set_mwi(ha->pdev))
 196                 mwi = PCI_COMMAND_INVALIDATE;
 197         pci_read_config_word(ha->pdev, PCI_REVISION_ID, &ha->revision);
 198
 199         pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
 200         w |= mwi | (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
 201         pci_write_config_word(ha->pdev, PCI_COMMAND, w);
 202
 203         /* Reset expansion ROM address decode enable */
 204         pci_read_config_dword(ha->pdev, PCI_ROM_ADDRESS, &d);
 205         d &= ~PCI_ROM_ADDRESS_ENABLE;
 206         pci_write_config_dword(ha->pdev, PCI_ROM_ADDRESS, d);
 207
 208         /* Get PCI bus information. */
 209         spin_lock_irqsave(&ha->hardware_lock, flags);
 210         ha->pci_attr = RD_REG_WORD(&reg->ctrl_status);
 211         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 212
 213         return QLA_SUCCESS;
 214 }
 215
 216 /**
 217  * qla2300_pci_config() - Setup ISP23xx PCI configuration registers.
 218  * @ha: HA context
 219  *
 220  * Returns 0 on success.
 221  */
 222 int
 223 qla2300_pci_config(scsi_qla_host_t *ha)
 224 {
 225         uint16_t        w, mwi;
 226         uint32_t        d;
 227         unsigned long   flags = 0;
 228         uint32_t        cnt;
 229         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 230
 231         pci_set_master(ha->pdev);
 232         mwi = 0;
 233         if (pci_set_mwi(ha->pdev))
 234                 mwi = PCI_COMMAND_INVALIDATE;
 235         pci_read_config_word(ha->pdev, PCI_REVISION_ID, &ha->revision);
 236
 237         pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
 238         w |= mwi | (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
 239
 240         if (IS_QLA2322(ha) || IS_QLA6322(ha))
 241                 w &= ~PCI_COMMAND_INTX_DISABLE;
 242
 243         /*
 244          * If this is a 2300 card and not 2312, reset the
 245          * COMMAND_INVALIDATE due to a bug in the 2300. Unfortunately,
 246          * the 2310 also reports itself as a 2300 so we need to get the
 247          * fb revision level -- a 6 indicates it really is a 2300 and
 248          * not a 2310.
 249          */
 250         if (IS_QLA2300(ha)) {
 251                 spin_lock_irqsave(&ha->hardware_lock, flags);
 252
 253                 /* Pause RISC. */
 254                 WRT_REG_WORD(&reg->hccr, HCCR_PAUSE_RISC);
 255                 for (cnt = 0; cnt < 30000; cnt++) {
 256                         if ((RD_REG_WORD(&reg->hccr) & HCCR_RISC_PAUSE) != 0)
 257                                 break;
 258
 259                         udelay(10);
 260                 }
 261
 262                 /* Select FPM registers. */
 263                 WRT_REG_WORD(&reg->ctrl_status, 0x20);
 264                 RD_REG_WORD(&reg->ctrl_status);
 265
 266                 /* Get the fb rev level */
 267                 ha->fb_rev = RD_FB_CMD_REG(ha, reg);
 268
 269                 if (ha->fb_rev == FPM_2300)
 270                         w &= ~PCI_COMMAND_INVALIDATE;
 271
 272                 /* Deselect FPM registers. */
 273                 WRT_REG_WORD(&reg->ctrl_status, 0x0);
 274                 RD_REG_WORD(&reg->ctrl_status);
 275
 276                 /* Release RISC module. */
 277                 WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
 278                 for (cnt = 0; cnt < 30000; cnt++) {
 279                         if ((RD_REG_WORD(&reg->hccr) & HCCR_RISC_PAUSE) == 0)
 280                                 break;
 281
 282                         udelay(10);
 283                 }
 284
 285                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 286         }
 287         pci_write_config_word(ha->pdev, PCI_COMMAND, w);
 288
 289         pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);
 290
 291         /* Reset expansion ROM address decode enable */
 292         pci_read_config_dword(ha->pdev, PCI_ROM_ADDRESS, &d);
 293         d &= ~PCI_ROM_ADDRESS_ENABLE;
 294         pci_write_config_dword(ha->pdev, PCI_ROM_ADDRESS, d);
 295
 296         /* Get PCI bus information. */
 297         spin_lock_irqsave(&ha->hardware_lock, flags);
 298         ha->pci_attr = RD_REG_WORD(&reg->ctrl_status);
 299         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 300
 301         return QLA_SUCCESS;
 302 }
 303
 304 /**
 305  * qla24xx_pci_config() - Setup ISP24xx PCI configuration registers.
 306  * @ha: HA context
 307  *
 308  * Returns 0 on success.
 309  */
 310 int
 311 qla24xx_pci_config(scsi_qla_host_t *ha)
 312 {
 313         uint16_t w, mwi;
 314         uint32_t d;
 315         unsigned long flags = 0;
 316         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
 317         int pcix_cmd_reg, pcie_dctl_reg;
 318
 319         pci_set_master(ha->pdev);
 320         mwi = 0;
 321         if (pci_set_mwi(ha->pdev))
 322                 mwi = PCI_COMMAND_INVALIDATE;
 323         pci_read_config_word(ha->pdev, PCI_REVISION_ID, &ha->revision);
 324
 325         pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
 326         w |= mwi | (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
 327         w &= ~PCI_COMMAND_INTX_DISABLE;
 328         pci_write_config_word(ha->pdev, PCI_COMMAND, w);
 329
 330         pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);
 331
 332         /* PCI-X -- adjust Maximum Memory Read Byte Count (2048). */
 333         pcix_cmd_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_PCIX);
 334         if (pcix_cmd_reg) {
 335                 uint16_t pcix_cmd;
 336
 337                 pcix_cmd_reg += PCI_X_CMD;
 338                 pci_read_config_word(ha->pdev, pcix_cmd_reg, &pcix_cmd);
 339                 pcix_cmd &= ~PCI_X_CMD_MAX_READ;
 340                 pcix_cmd |= 0x0008;
 341                 pci_write_config_word(ha->pdev, pcix_cmd_reg, pcix_cmd);
 342         }
 343
 344         /* PCIe -- adjust Maximum Read Request Size (2048). */
 345         pcie_dctl_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
 346         if (pcie_dctl_reg) {
 347                 uint16_t pcie_dctl;
 348
 349                 pcie_dctl_reg += PCI_EXP_DEVCTL;
 350                 pci_read_config_word(ha->pdev, pcie_dctl_reg, &pcie_dctl);
 351                 pcie_dctl &= ~PCI_EXP_DEVCTL_READRQ;
 352                 pcie_dctl |= 0x4000;
 353                 pci_write_config_word(ha->pdev, pcie_dctl_reg, pcie_dctl);
 354         }
 355
 356         /* Reset expansion ROM address decode enable */
 357         pci_read_config_dword(ha->pdev, PCI_ROM_ADDRESS, &d);
 358         d &= ~PCI_ROM_ADDRESS_ENABLE;
 359         pci_write_config_dword(ha->pdev, PCI_ROM_ADDRESS, d);
 360
 361         /* Get PCI bus information. */
 362         spin_lock_irqsave(&ha->hardware_lock, flags);
 363         ha->pci_attr = RD_REG_DWORD(&reg->ctrl_status);
 364         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 365
 366         return QLA_SUCCESS;
 367 }
 368
 369 /**
 370  * qla2x00_isp_firmware() - Choose firmware image.
 371  * @ha: HA context
 372  *
 373  * Returns 0 on success.
 374  */
 375 static int
 376 qla2x00_isp_firmware(scsi_qla_host_t *ha)
 377 {
 378         int  rval;
 379
 380         /* Assume loading risc code */
 381         rval = QLA_FUNCTION_FAILED;
 382
 383         if (ha->flags.disable_risc_code_load) {
 384                 DEBUG2(printk("scsi(%ld): RISC CODE NOT loaded\n",
 385                     ha->host_no));
 386                 qla_printk(KERN_INFO, ha, "RISC CODE NOT loaded\n");
 387
 388                 /* Verify checksum of loaded RISC code. */
 389                 rval = qla2x00_verify_checksum(ha,
 390                     IS_QLA24XX(ha) || IS_QLA54XX(ha) ? RISC_SADDRESS :
 391                     *ha->brd_info->fw_info[0].fwstart);
 392         }
 393
 394         if (rval) {
 395                 DEBUG2_3(printk("scsi(%ld): **** Load RISC code ****\n",
 396                     ha->host_no));
 397         }
 398
 399         return (rval);
 400 }
 401
 402 /**
 403  * qla2x00_reset_chip() - Reset ISP chip.
 404  * @ha: HA context
 405  *
 406  * Returns 0 on success.
 407  */
 408 void
 409 qla2x00_reset_chip(scsi_qla_host_t *ha)
 410 {
 411         unsigned long   flags = 0;
 412         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 413         uint32_t        cnt;
 414         unsigned long   mbx_flags = 0;
 415         uint16_t        cmd;
 416
 417         ha->isp_ops.disable_intrs(ha);
 418
 419         spin_lock_irqsave(&ha->hardware_lock, flags);
 420
 421         /* Turn off master enable */
 422         cmd = 0;
 423         pci_read_config_word(ha->pdev, PCI_COMMAND, &cmd);
 424         cmd &= ~PCI_COMMAND_MASTER;
 425         pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
 426
 427         if (!IS_QLA2100(ha)) {
 428                 /* Pause RISC. */
 429                 WRT_REG_WORD(&reg->hccr, HCCR_PAUSE_RISC);
 430                 if (IS_QLA2200(ha) || IS_QLA2300(ha)) {
 431                         for (cnt = 0; cnt < 30000; cnt++) {
 432                                 if ((RD_REG_WORD(&reg->hccr) &
 433                                     HCCR_RISC_PAUSE) != 0)
 434                                         break;
 435                                 udelay(100);
 436                         }
 437                 } else {
 438                         RD_REG_WORD(&reg->hccr);        /* PCI Posting. */
 439                         udelay(10);
 440                 }
 441
 442                 /* Select FPM registers. */
 443                 WRT_REG_WORD(&reg->ctrl_status, 0x20);
 444                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
 445
 446                 /* FPM Soft Reset. */
 447                 WRT_REG_WORD(&reg->fpm_diag_config, 0x100);
 448                 RD_REG_WORD(&reg->fpm_diag_config);     /* PCI Posting. */
 449
 450                 /* Toggle Fpm Reset. */
 451                 if (!IS_QLA2200(ha)) {
 452                         WRT_REG_WORD(&reg->fpm_diag_config, 0x0);
 453                         RD_REG_WORD(&reg->fpm_diag_config); /* PCI Posting. */
 454                 }
 455
 456                 /* Select frame buffer registers. */
 457                 WRT_REG_WORD(&reg->ctrl_status, 0x10);
 458                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
 459
 460                 /* Reset frame buffer FIFOs. */
 461                 if (IS_QLA2200(ha)) {
 462                         WRT_FB_CMD_REG(ha, reg, 0xa000);
 463                         RD_FB_CMD_REG(ha, reg);         /* PCI Posting. */
 464                 } else {
 465                         WRT_FB_CMD_REG(ha, reg, 0x00fc);
 466
 467                         /* Read back fb_cmd until zero or 3 seconds max */
 468                         for (cnt = 0; cnt < 3000; cnt++) {
 469                                 if ((RD_FB_CMD_REG(ha, reg) & 0xff) == 0)
 470                                         break;
 471                                 udelay(100);
 472                         }
 473                 }
 474
 475                 /* Select RISC module registers. */
 476                 WRT_REG_WORD(&reg->ctrl_status, 0);
 477                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
 478
 479                 /* Reset RISC processor. */
 480                 WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
 481                 RD_REG_WORD(&reg->hccr);                /* PCI Posting. */
 482
 483                 /* Release RISC processor. */
 484                 WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
 485                 RD_REG_WORD(&reg->hccr);                /* PCI Posting. */
 486         }
 487
 488         WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
 489         WRT_REG_WORD(&reg->hccr, HCCR_CLR_HOST_INT);
 490
 491         /* Reset ISP chip. */
 492         WRT_REG_WORD(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
 493
 494         /* Wait for RISC to recover from reset. */
 495         if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
 496                 /*
 497                  * It is necessary to for a delay here since the card doesn't
 498                  * respond to PCI reads during a reset. On some architectures
 499                  * this will result in an MCA.
 500                  */
 501                 udelay(20);
 502                 for (cnt = 30000; cnt; cnt--) {
 503                         if ((RD_REG_WORD(&reg->ctrl_status) &
 504                             CSR_ISP_SOFT_RESET) == 0)
 505                                 break;
 506                         udelay(100);
 507                 }
 508         } else
 509                 udelay(10);
 510
 511         /* Reset RISC processor. */
 512         WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
 513
 514         WRT_REG_WORD(&reg->semaphore, 0);
 515
 516         /* Release RISC processor. */
 517         WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
 518         RD_REG_WORD(&reg->hccr);                        /* PCI Posting. */
 519
 520         if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
 521                 for (cnt = 0; cnt < 30000; cnt++) {
 522                         if (!(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)))
 523                                 spin_lock_irqsave(&ha->mbx_reg_lock, mbx_flags);
 524
 525                         if (RD_MAILBOX_REG(ha, reg, 0) != MBS_BUSY) {
 526                                 if (!(test_bit(ABORT_ISP_ACTIVE,
 527                                     &ha->dpc_flags)))
 528                                         spin_unlock_irqrestore(
 529                                             &ha->mbx_reg_lock, mbx_flags);
 530                                 break;
 531                         }
 532
 533                         if (!(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)))
 534                                 spin_unlock_irqrestore(&ha->mbx_reg_lock,
 535                                     mbx_flags);
 536
 537                         udelay(100);
 538                 }
 539         } else
 540                 udelay(100);
 541
 542         /* Turn on master enable */
 543         cmd |= PCI_COMMAND_MASTER;
 544         pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
 545
 546         /* Disable RISC pause on FPM parity error. */
 547         if (!IS_QLA2100(ha)) {
 548                 WRT_REG_WORD(&reg->hccr, HCCR_DISABLE_PARITY_PAUSE);
 549                 RD_REG_WORD(&reg->hccr);                /* PCI Posting. */
 550         }
 551
 552         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 553 }
 554
 555 /**
 556  * qla24xx_reset_risc() - Perform full reset of ISP24xx RISC.
 557  * @ha: HA context
 558  *
 559  * Returns 0 on success.
 560  */
 561 static inline void
 562 qla24xx_reset_risc(scsi_qla_host_t *ha)
 563 {
 564         unsigned long flags = 0;
 565         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
 566         uint32_t cnt, d2;
 567         uint16_t wd;
 568
 569         spin_lock_irqsave(&ha->hardware_lock, flags);
 570
 571         /* Reset RISC. */
 572         WRT_REG_DWORD(&reg->ctrl_status, CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
 573         for (cnt = 0; cnt < 30000; cnt++) {
 574                 if ((RD_REG_DWORD(&reg->ctrl_status) & CSRX_DMA_ACTIVE) == 0)
 575                         break;
 576
 577                 udelay(10);
 578         }
 579
 580         WRT_REG_DWORD(&reg->ctrl_status,
 581             CSRX_ISP_SOFT_RESET|CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
 582         pci_read_config_word(ha->pdev, PCI_COMMAND, &wd);
 583
 584         udelay(100);
 585         /* Wait for firmware to complete NVRAM accesses. */
 586         d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
 587         for (cnt = 10000 ; cnt && d2; cnt--) {
 588                 udelay(5);
 589                 d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
 590                 barrier();
 591         }
 592
 593         /* Wait for soft-reset to complete. */
 594         d2 = RD_REG_DWORD(&reg->ctrl_status);
 595         for (cnt = 6000000 ; cnt && (d2 & CSRX_ISP_SOFT_RESET); cnt--) {
 596                 udelay(5);
 597                 d2 = RD_REG_DWORD(&reg->ctrl_status);
 598                 barrier();
 599         }
 600
 601         WRT_REG_DWORD(&reg->hccr, HCCRX_SET_RISC_RESET);
 602         RD_REG_DWORD(&reg->hccr);
 603
 604         WRT_REG_DWORD(&reg->hccr, HCCRX_REL_RISC_PAUSE);
 605         RD_REG_DWORD(&reg->hccr);
 606
 607         WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_RESET);
 608         RD_REG_DWORD(&reg->hccr);
 609
 610         d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
 611         for (cnt = 6000000 ; cnt && d2; cnt--) {
 612                 udelay(5);
 613                 d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
 614                 barrier();
 615         }
 616
 617         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 618 }
 619
 620 /**
 621  * qla24xx_reset_chip() - Reset ISP24xx chip.
 622  * @ha: HA context
 623  *
 624  * Returns 0 on success.
 625  */
 626 void
 627 qla24xx_reset_chip(scsi_qla_host_t *ha)
 628 {
 629         ha->isp_ops.disable_intrs(ha);
 630
 631         /* Perform RISC reset. */
 632         qla24xx_reset_risc(ha);
 633 }
 634
 635 /**
 636  * qla2x00_chip_diag() - Test chip for proper operation.
 637  * @ha: HA context
 638  *
 639  * Returns 0 on success.
 640  */
 641 int
 642 qla2x00_chip_diag(scsi_qla_host_t *ha)
 643 {
 644         int             rval;
 645         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 646         unsigned long   flags = 0;
 647         uint16_t        data;
 648         uint32_t        cnt;
 649         uint16_t        mb[5];
 650
 651         /* Assume a failed state */
 652         rval = QLA_FUNCTION_FAILED;
 653
 654         DEBUG3(printk("scsi(%ld): Testing device at %lx.\n",
 655             ha->host_no, (u_long)&reg->flash_address));
 656
 657         spin_lock_irqsave(&ha->hardware_lock, flags);
 658
 659         /* Reset ISP chip. */
 660         WRT_REG_WORD(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
 661
 662         /*
 663          * We need to have a delay here since the card will not respond while
 664          * in reset causing an MCA on some architectures.
 665          */
 666         udelay(20);
 667         data = qla2x00_debounce_register(&reg->ctrl_status);
 668         for (cnt = 6000000 ; cnt && (data & CSR_ISP_SOFT_RESET); cnt--) {
 669                 udelay(5);
 670                 data = RD_REG_WORD(&reg->ctrl_status);
 671                 barrier();
 672         }
 673
 674         if (!cnt)
 675                 goto chip_diag_failed;
 676
 677         DEBUG3(printk("scsi(%ld): Reset register cleared by chip reset\n",
 678             ha->host_no));
 679
 680         /* Reset RISC processor. */
 681         WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
 682         WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
 683
 684         /* Workaround for QLA2312 PCI parity error */
 685         if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
 686                 data = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 0));
 687                 for (cnt = 6000000; cnt && (data == MBS_BUSY); cnt--) {
 688                         udelay(5);
 689                         data = RD_MAILBOX_REG(ha, reg, 0);
 690                         barrier();
 691                 }
 692         } else
 693                 udelay(10);
 694
 695         if (!cnt)
 696                 goto chip_diag_failed;
 697
 698         /* Check product ID of chip */
 699         DEBUG3(printk("scsi(%ld): Checking product ID of chip\n", ha->host_no));
 700
 701         mb[1] = RD_MAILBOX_REG(ha, reg, 1);
 702         mb[2] = RD_MAILBOX_REG(ha, reg, 2);
 703         mb[3] = RD_MAILBOX_REG(ha, reg, 3);
 704         mb[4] = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 4));
 705         if (mb[1] != PROD_ID_1 || (mb[2] != PROD_ID_2 && mb[2] != PROD_ID_2a) ||
 706             mb[3] != PROD_ID_3) {
 707                 qla_printk(KERN_WARNING, ha,
 708                     "Wrong product ID = 0x%x,0x%x,0x%x\n", mb[1], mb[2], mb[3]);
 709
 710                 goto chip_diag_failed;
 711         }
 712         ha->product_id[0] = mb[1];
 713         ha->product_id[1] = mb[2];
 714         ha->product_id[2] = mb[3];
 715         ha->product_id[3] = mb[4];
 716
 717         /* Adjust fw RISC transfer size */
 718         if (ha->request_q_length > 1024)
 719                 ha->fw_transfer_size = REQUEST_ENTRY_SIZE * 1024;
 720         else
 721                 ha->fw_transfer_size = REQUEST_ENTRY_SIZE *
 722                     ha->request_q_length;
 723
 724         if (IS_QLA2200(ha) &&
 725             RD_MAILBOX_REG(ha, reg, 7) == QLA2200A_RISC_ROM_VER) {
 726                 /* Limit firmware transfer size with a 2200A */
 727                 DEBUG3(printk("scsi(%ld): Found QLA2200A chip.\n",
 728                     ha->host_no));
 729
 730                 ha->device_type |= DT_ISP2200A;
 731                 ha->fw_transfer_size = 128;
 732         }
 733
 734         /* Wrap Incoming Mailboxes Test. */
 735         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 736
 737         DEBUG3(printk("scsi(%ld): Checking mailboxes.\n", ha->host_no));
 738         rval = qla2x00_mbx_reg_test(ha);
 739         if (rval) {
 740                 DEBUG(printk("scsi(%ld): Failed mailbox send register test\n",
 741                     ha->host_no));
 742                 qla_printk(KERN_WARNING, ha,
 743                     "Failed mailbox send register test\n");
 744         }
 745         else {
 746                 /* Flag a successful rval */
 747                 rval = QLA_SUCCESS;
 748         }
 749         spin_lock_irqsave(&ha->hardware_lock, flags);
 750
 751 chip_diag_failed:
 752         if (rval)
 753                 DEBUG2_3(printk("scsi(%ld): Chip diagnostics **** FAILED "
 754                     "****\n", ha->host_no));
 755
 756         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 757
 758         return (rval);
 759 }
 760
 761 /**
 762  * qla24xx_chip_diag() - Test ISP24xx for proper operation.
 763  * @ha: HA context
 764  *
 765  * Returns 0 on success.
 766  */
 767 int
 768 qla24xx_chip_diag(scsi_qla_host_t *ha)
 769 {
 770         int rval;
 771
 772         /* Perform RISC reset. */
 773         qla24xx_reset_risc(ha);
 774
 775         ha->fw_transfer_size = REQUEST_ENTRY_SIZE * 1024;
 776
 777         rval = qla2x00_mbx_reg_test(ha);
 778         if (rval) {
 779                 DEBUG(printk("scsi(%ld): Failed mailbox send register test\n",
 780                     ha->host_no));
 781                 qla_printk(KERN_WARNING, ha,
 782                     "Failed mailbox send register test\n");
 783         } else {
 784                 /* Flag a successful rval */
 785                 rval = QLA_SUCCESS;
 786         }
 787
 788         return rval;
 789 }
 790
 791 static void
 792 qla2x00_alloc_fw_dump(scsi_qla_host_t *ha)
 793 {
 794         ha->fw_dumped = 0;
 795         ha->fw_dump24_len = sizeof(struct qla24xx_fw_dump);
 796         ha->fw_dump24_len += (ha->fw_memory_size - 0x100000) * sizeof(uint32_t);
 797         ha->fw_dump24 = vmalloc(ha->fw_dump24_len);
 798         if (ha->fw_dump24)
 799                 qla_printk(KERN_INFO, ha, "Allocated (%d KB) for firmware "
 800                     "dump...\n", ha->fw_dump24_len / 1024);
 801         else
 802                 qla_printk(KERN_WARNING, ha, "Unable to allocate (%d KB) for "
 803                     "firmware dump!!!\n", ha->fw_dump24_len / 1024);
 804 }
 805
 806 /**
 807  * qla2x00_resize_request_q() - Resize request queue given available ISP memory.
 808  * @ha: HA context
 809  *
 810  * Returns 0 on success.
 811  */
 812 static void
 813 qla2x00_resize_request_q(scsi_qla_host_t *ha)
 814 {
 815         int rval;
 816         uint16_t fw_iocb_cnt = 0;
 817         uint16_t request_q_length = REQUEST_ENTRY_CNT_2XXX_EXT_MEM;
 818         dma_addr_t request_dma;
 819         request_t *request_ring;
 820
 821         /* Valid only on recent ISPs. */
 822         if (IS_QLA2100(ha) || IS_QLA2200(ha))
 823                 return;
 824
 825         if (IS_QLA24XX(ha) || IS_QLA54XX(ha))
 826                 qla2x00_alloc_fw_dump(ha);
 827
 828         /* Retrieve IOCB counts available to the firmware. */
 829         rval = qla2x00_get_resource_cnts(ha, NULL, NULL, NULL, &fw_iocb_cnt);
 830         if (rval)
 831                 return;
 832         /* No point in continuing if current settings are sufficient. */
 833         if (fw_iocb_cnt < 1024)
 834                 return;
 835         if (ha->request_q_length >= request_q_length)
 836                 return;
 837
 838         /* Attempt to claim larger area for request queue. */
 839         request_ring = dma_alloc_coherent(&ha->pdev->dev,
 840             (request_q_length + 1) * sizeof(request_t), &request_dma,
 841             GFP_KERNEL);
 842         if (request_ring == NULL)
 843                 return;
 844
 845         /* Resize successful, report extensions. */
 846         qla_printk(KERN_INFO, ha, "Extended memory detected (%d KB)...\n",
 847             (ha->fw_memory_size + 1) / 1024);
 848         qla_printk(KERN_INFO, ha, "Resizing request queue depth "
 849             "(%d -> %d)...\n", ha->request_q_length, request_q_length);
 850
 851         /* Clear old allocations. */
 852         dma_free_coherent(&ha->pdev->dev,
 853             (ha->request_q_length + 1) * sizeof(request_t), ha->request_ring,
 854             ha->request_dma);
 855
 856         /* Begin using larger queue. */
 857         ha->request_q_length = request_q_length;
 858         ha->request_ring = request_ring;
 859         ha->request_dma = request_dma;
 860 }
 861
 862 /**
 863  * qla2x00_setup_chip() - Load and start RISC firmware.
 864  * @ha: HA context
 865  *
 866  * Returns 0 on success.
 867  */
 868 static int
 869 qla2x00_setup_chip(scsi_qla_host_t *ha)
 870 {
 871         int rval;
 872         uint32_t srisc_address = 0;
 873
 874         /* Load firmware sequences */
 875         rval = ha->isp_ops.load_risc(ha, &srisc_address);
 876         if (rval == QLA_SUCCESS) {
 877                 DEBUG(printk("scsi(%ld): Verifying Checksum of loaded RISC "
 878                     "code.\n", ha->host_no));
 879
 880                 rval = qla2x00_verify_checksum(ha, srisc_address);
 881                 if (rval == QLA_SUCCESS) {
 882                         /* Start firmware execution. */
 883                         DEBUG(printk("scsi(%ld): Checksum OK, start "
 884                             "firmware.\n", ha->host_no));
 885
 886                         rval = qla2x00_execute_fw(ha, srisc_address);
 887                         /* Retrieve firmware information. */
 888                         if (rval == QLA_SUCCESS && ha->fw_major_version == 0) {
 889                                 qla2x00_get_fw_version(ha,
 890                                     &ha->fw_major_version,
 891                                     &ha->fw_minor_version,
 892                                     &ha->fw_subminor_version,
 893                                     &ha->fw_attributes, &ha->fw_memory_size);
 894                                 qla2x00_resize_request_q(ha);
 895                         }
 896                 } else {
 897                         DEBUG2(printk(KERN_INFO
 898                             "scsi(%ld): ISP Firmware failed checksum.\n",
 899                             ha->host_no));
 900                 }
 901         }
 902
 903         if (rval) {
 904                 DEBUG2_3(printk("scsi(%ld): Setup chip **** FAILED ****.\n",
 905                     ha->host_no));
 906         }
 907
 908         return (rval);
 909 }
 910
 911 /**
 912  * qla2x00_init_response_q_entries() - Initializes response queue entries.
 913  * @ha: HA context
 914  *
 915  * Beginning of request ring has initialization control block already built
 916  * by nvram config routine.
 917  *
 918  * Returns 0 on success.
 919  */
 920 static void
 921 qla2x00_init_response_q_entries(scsi_qla_host_t *ha)
 922 {
 923         uint16_t cnt;
 924         response_t *pkt;
 925
 926         pkt = ha->response_ring_ptr;
 927         for (cnt = 0; cnt < ha->response_q_length; cnt++) {
 928                 pkt->signature = RESPONSE_PROCESSED;
 929                 pkt++;
 930         }
 931
 932 }
 933
 934 /**
 935  * qla2x00_update_fw_options() - Read and process firmware options.
 936  * @ha: HA context
 937  *
 938  * Returns 0 on success.
 939  */
 940 void
 941 qla2x00_update_fw_options(scsi_qla_host_t *ha)
 942 {
 943         uint16_t swing, emphasis, tx_sens, rx_sens;
 944
 945         memset(ha->fw_options, 0, sizeof(ha->fw_options));
 946         qla2x00_get_fw_options(ha, ha->fw_options);
 947
 948         if (IS_QLA2100(ha) || IS_QLA2200(ha))
 949                 return;
 950
 951         /* Serial Link options. */
 952         DEBUG3(printk("scsi(%ld): Serial link options:\n",
 953             ha->host_no));
 954         DEBUG3(qla2x00_dump_buffer((uint8_t *)&ha->fw_seriallink_options,
 955             sizeof(ha->fw_seriallink_options)));
 956
 957         ha->fw_options[1] &= ~FO1_SET_EMPHASIS_SWING;
 958         if (ha->fw_seriallink_options[3] & BIT_2) {
 959                 ha->fw_options[1] |= FO1_SET_EMPHASIS_SWING;
 960
 961                 /*  1G settings */
 962                 swing = ha->fw_seriallink_options[2] & (BIT_2 | BIT_1 | BIT_0);
 963                 emphasis = (ha->fw_seriallink_options[2] &
 964                     (BIT_4 | BIT_3)) >> 3;
 965                 tx_sens = ha->fw_seriallink_options[0] &
 966                     (BIT_3 | BIT_2 | BIT_1 | BIT_0);
 967                 rx_sens = (ha->fw_seriallink_options[0] &
 968                     (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
 969                 ha->fw_options[10] = (emphasis << 14) | (swing << 8);
 970                 if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
 971                         if (rx_sens == 0x0)
 972                                 rx_sens = 0x3;
 973                         ha->fw_options[10] |= (tx_sens << 4) | rx_sens;
 974                 } else if (IS_QLA2322(ha) || IS_QLA6322(ha))
 975                         ha->fw_options[10] |= BIT_5 |
 976                             ((rx_sens & (BIT_1 | BIT_0)) << 2) |
 977                             (tx_sens & (BIT_1 | BIT_0));
 978
 979                 /*  2G settings */
 980                 swing = (ha->fw_seriallink_options[2] &
 981                     (BIT_7 | BIT_6 | BIT_5)) >> 5;
 982                 emphasis = ha->fw_seriallink_options[3] & (BIT_1 | BIT_0);
 983                 tx_sens = ha->fw_seriallink_options[1] &
 984                     (BIT_3 | BIT_2 | BIT_1 | BIT_0);
 985                 rx_sens = (ha->fw_seriallink_options[1] &
 986                     (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
 987                 ha->fw_options[11] = (emphasis << 14) | (swing << 8);
 988                 if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
 989                         if (rx_sens == 0x0)
 990                                 rx_sens = 0x3;
 991                         ha->fw_options[11] |= (tx_sens << 4) | rx_sens;
 992                 } else if (IS_QLA2322(ha) || IS_QLA6322(ha))
 993                         ha->fw_options[11] |= BIT_5 |
 994                             ((rx_sens & (BIT_1 | BIT_0)) << 2) |
 995                             (tx_sens & (BIT_1 | BIT_0));
 996         }
 997
 998         /* FCP2 options. */
 999         /*  Return command IOCBs without waiting for an ABTS to complete. */
1000         ha->fw_options[3] |= BIT_13;
1001
1002         /* LED scheme. */
1003         if (ha->flags.enable_led_scheme)
1004                 ha->fw_options[2] |= BIT_12;
1005
1006         /* Detect ISP6312. */
1007         if (IS_QLA6312(ha))
1008                 ha->fw_options[2] |= BIT_13;
1009
1010         /* Update firmware options. */
1011         qla2x00_set_fw_options(ha, ha->fw_options);
1012 }
1013
1014 void
1015 qla24xx_update_fw_options(scsi_qla_host_t *ha)
1016 {
1017         int rval;
1018
1019         /* Update Serial Link options. */
1020         if ((le16_to_cpu(ha->fw_seriallink_options24[0]) & BIT_0) == 0)
1021                 return;
1022
1023         rval = qla2x00_set_serdes_params(ha,
1024             le16_to_cpu(ha->fw_seriallink_options24[1]),
1025             le16_to_cpu(ha->fw_seriallink_options24[2]),
1026             le16_to_cpu(ha->fw_seriallink_options24[3]));
1027         if (rval != QLA_SUCCESS) {
1028                 qla_printk(KERN_WARNING, ha,
1029                     "Unable to update Serial Link options (%x).\n", rval);
1030         }
1031 }
1032
1033 void
1034 qla2x00_config_rings(struct scsi_qla_host *ha)
1035 {
1036         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1037
1038         /* Setup ring parameters in initialization control block. */
1039         ha->init_cb->request_q_outpointer = __constant_cpu_to_le16(0);
1040         ha->init_cb->response_q_inpointer = __constant_cpu_to_le16(0);
1041         ha->init_cb->request_q_length = cpu_to_le16(ha->request_q_length);
1042         ha->init_cb->response_q_length = cpu_to_le16(ha->response_q_length);
1043         ha->init_cb->request_q_address[0] = cpu_to_le32(LSD(ha->request_dma));
1044         ha->init_cb->request_q_address[1] = cpu_to_le32(MSD(ha->request_dma));
1045         ha->init_cb->response_q_address[0] = cpu_to_le32(LSD(ha->response_dma));
1046         ha->init_cb->response_q_address[1] = cpu_to_le32(MSD(ha->response_dma));
1047
1048         WRT_REG_WORD(ISP_REQ_Q_IN(ha, reg), 0);
1049         WRT_REG_WORD(ISP_REQ_Q_OUT(ha, reg), 0);
1050         WRT_REG_WORD(ISP_RSP_Q_IN(ha, reg), 0);
1051         WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), 0);
1052         RD_REG_WORD(ISP_RSP_Q_OUT(ha, reg));            /* PCI Posting. */
1053 }
1054
1055 void
1056 qla24xx_config_rings(struct scsi_qla_host *ha)
1057 {
1058         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1059         struct init_cb_24xx *icb;
1060
1061         /* Setup ring parameters in initialization control block. */
1062         icb = (struct init_cb_24xx *)ha->init_cb;
1063         icb->request_q_outpointer = __constant_cpu_to_le16(0);
1064         icb->response_q_inpointer = __constant_cpu_to_le16(0);
1065         icb->request_q_length = cpu_to_le16(ha->request_q_length);
1066         icb->response_q_length = cpu_to_le16(ha->response_q_length);
1067         icb->request_q_address[0] = cpu_to_le32(LSD(ha->request_dma));
1068         icb->request_q_address[1] = cpu_to_le32(MSD(ha->request_dma));
1069         icb->response_q_address[0] = cpu_to_le32(LSD(ha->response_dma));
1070         icb->response_q_address[1] = cpu_to_le32(MSD(ha->response_dma));
1071
1072         WRT_REG_DWORD(&reg->req_q_in, 0);
1073         WRT_REG_DWORD(&reg->req_q_out, 0);
1074         WRT_REG_DWORD(&reg->rsp_q_in, 0);
1075         WRT_REG_DWORD(&reg->rsp_q_out, 0);
1076         RD_REG_DWORD(&reg->rsp_q_out);
1077 }
1078
1079 /**
1080  * qla2x00_init_rings() - Initializes firmware.
1081  * @ha: HA context
1082  *
1083  * Beginning of request ring has initialization control block already built
1084  * by nvram config routine.
1085  *
1086  * Returns 0 on success.
1087  */
1088 static int
1089 qla2x00_init_rings(scsi_qla_host_t *ha)
1090 {
1091         int     rval;
1092         unsigned long flags = 0;
1093         int cnt;
1094
1095         spin_lock_irqsave(&ha->hardware_lock, flags);
1096
1097         /* Clear outstanding commands array. */
1098         for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++)
1099                 ha->outstanding_cmds[cnt] = NULL;
1100
1101         ha->current_outstanding_cmd = 0;
1102
1103         /* Clear RSCN queue. */
1104         ha->rscn_in_ptr = 0;
1105         ha->rscn_out_ptr = 0;
1106
1107         /* Initialize firmware. */
1108         ha->request_ring_ptr  = ha->request_ring;
1109         ha->req_ring_index    = 0;
1110         ha->req_q_cnt         = ha->request_q_length;
1111         ha->response_ring_ptr = ha->response_ring;
1112         ha->rsp_ring_index    = 0;
1113
1114         /* Initialize response queue entries */
1115         qla2x00_init_response_q_entries(ha);
1116
1117         ha->isp_ops.config_rings(ha);
1118
1119         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1120
1121         /* Update any ISP specific firmware options before initialization. */
1122         ha->isp_ops.update_fw_options(ha);
1123
1124         DEBUG(printk("scsi(%ld): Issue init firmware.\n", ha->host_no));
1125         rval = qla2x00_init_firmware(ha, ha->init_cb_size);
1126         if (rval) {
1127                 DEBUG2_3(printk("scsi(%ld): Init firmware **** FAILED ****.\n",
1128                     ha->host_no));
1129         } else {
1130                 DEBUG3(printk("scsi(%ld): Init firmware -- success.\n",
1131                     ha->host_no));
1132         }
1133
1134         return (rval);
1135 }
1136
1137 /**
1138  * qla2x00_fw_ready() - Waits for firmware ready.
1139  * @ha: HA context
1140  *
1141  * Returns 0 on success.
1142  */
1143 static int
1144 qla2x00_fw_ready(scsi_qla_host_t *ha)
1145 {
1146         int             rval;
1147         unsigned long   wtime, mtime;
1148         uint16_t        min_wait;       /* Minimum wait time if loop is down */
1149         uint16_t        wait_time;      /* Wait time if loop is coming ready */
1150         uint16_t        fw_state;
1151
1152         rval = QLA_SUCCESS;
1153
1154         /* 20 seconds for loop down. */
1155         min_wait = 20;
1156
1157         /*
1158          * Firmware should take at most one RATOV to login, plus 5 seconds for
1159          * our own processing.
1160          */
1161         if ((wait_time = (ha->retry_count*ha->login_timeout) + 5) < min_wait) {
1162                 wait_time = min_wait;
1163         }
1164
1165         /* Min wait time if loop down */
1166         mtime = jiffies + (min_wait * HZ);
1167
1168         /* wait time before firmware ready */
1169         wtime = jiffies + (wait_time * HZ);
1170
1171         /* Wait for ISP to finish LIP */
1172         if (!ha->flags.init_done)
1173                 qla_printk(KERN_INFO, ha, "Waiting for LIP to complete...\n");
1174
1175         DEBUG3(printk("scsi(%ld): Waiting for LIP to complete...\n",
1176             ha->host_no));
1177
1178         do {
1179                 rval = qla2x00_get_firmware_state(ha, &fw_state);
1180                 if (rval == QLA_SUCCESS) {
1181                         if (fw_state < FSTATE_LOSS_OF_SYNC) {
1182                                 ha->device_flags &= ~DFLG_NO_CABLE;
1183                         }
1184                         if (fw_state == FSTATE_READY) {
1185                                 DEBUG(printk("scsi(%ld): F/W Ready - OK \n",
1186                                     ha->host_no));
1187
1188                                 qla2x00_get_retry_cnt(ha, &ha->retry_count,
1189                                     &ha->login_timeout, &ha->r_a_tov);
1190
1191                                 rval = QLA_SUCCESS;
1192                                 break;
1193                         }
1194
1195                         rval = QLA_FUNCTION_FAILED;
1196
1197                         if (atomic_read(&ha->loop_down_timer) &&
1198                             (fw_state >= FSTATE_LOSS_OF_SYNC ||
1199                                 fw_state == FSTATE_WAIT_AL_PA)) {
1200                                 /* Loop down. Timeout on min_wait for states
1201                                  * other than Wait for Login.
1202                                  */
1203                                 if (time_after_eq(jiffies, mtime)) {
1204                                         qla_printk(KERN_INFO, ha,
1205                                             "Cable is unplugged...\n");
1206
1207                                         ha->device_flags |= DFLG_NO_CABLE;
1208                                         break;
1209                                 }
1210                         }
1211                 } else {
1212                         /* Mailbox cmd failed. Timeout on min_wait. */
1213                         if (time_after_eq(jiffies, mtime))
1214                                 break;
1215                 }
1216
1217                 if (time_after_eq(jiffies, wtime))
1218                         break;
1219
1220                 /* Delay for a while */
1221                 msleep(500);
1222
1223                 DEBUG3(printk("scsi(%ld): fw_state=%x curr time=%lx.\n",
1224                     ha->host_no, fw_state, jiffies));
1225         } while (1);
1226
1227         DEBUG(printk("scsi(%ld): fw_state=%x curr time=%lx.\n",
1228             ha->host_no, fw_state, jiffies));
1229
1230         if (rval) {
1231                 DEBUG2_3(printk("scsi(%ld): Firmware ready **** FAILED ****.\n",
1232                     ha->host_no));
1233         }
1234
1235         return (rval);
1236 }
1237
1238 /*
1239 *  qla2x00_configure_hba
1240 *      Setup adapter context.
1241 *
1242 * Input:
1243 *      ha = adapter state pointer.
1244 *
1245 * Returns:
1246 *      0 = success
1247 *
1248 * Context:
1249 *      Kernel context.
1250 */
1251 static int
1252 qla2x00_configure_hba(scsi_qla_host_t *ha)
1253 {
1254         int       rval;
1255         uint16_t      loop_id;
1256         uint16_t      topo;
1257         uint8_t       al_pa;
1258         uint8_t       area;
1259         uint8_t       domain;
1260         char            connect_type[22];
1261
1262         /* Get host addresses. */
1263         rval = qla2x00_get_adapter_id(ha,
1264             &loop_id, &al_pa, &area, &domain, &topo);
1265         if (rval != QLA_SUCCESS) {
1266                 if (LOOP_TRANSITION(ha) || atomic_read(&ha->loop_down_timer) ||
1267                     (rval == QLA_COMMAND_ERROR && loop_id == 0x7)) {
1268                         DEBUG2(printk("%s(%ld) Loop is in a transition state\n",
1269                             __func__, ha->host_no));
1270                 } else {
1271                         qla_printk(KERN_WARNING, ha,
1272                             "ERROR -- Unable to get host loop ID.\n");
1273                         set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
1274                 }
1275                 return (rval);
1276         }
1277
1278         if (topo == 4) {
1279                 qla_printk(KERN_INFO, ha,
1280                         "Cannot get topology - retrying.\n");
1281                 return (QLA_FUNCTION_FAILED);
1282         }
1283
1284         ha->loop_id = loop_id;
1285
1286         /* initialize */
1287         ha->min_external_loopid = SNS_FIRST_LOOP_ID;
1288         ha->operating_mode = LOOP;
1289
1290         switch (topo) {
1291         case 0:
1292                 DEBUG3(printk("scsi(%ld): HBA in NL topology.\n",
1293                     ha->host_no));
1294                 ha->current_topology = ISP_CFG_NL;
1295                 strcpy(connect_type, "(Loop)");
1296                 break;
1297
1298         case 1:
1299                 DEBUG3(printk("scsi(%ld): HBA in FL topology.\n",
1300                     ha->host_no));
1301                 ha->current_topology = ISP_CFG_FL;
1302                 strcpy(connect_type, "(FL_Port)");
1303                 break;
1304
1305         case 2:
1306                 DEBUG3(printk("scsi(%ld): HBA in N P2P topology.\n",
1307                     ha->host_no));
1308                 ha->operating_mode = P2P;
1309                 ha->current_topology = ISP_CFG_N;
1310                 strcpy(connect_type, "(N_Port-to-N_Port)");
1311                 break;
1312
1313         case 3:
1314                 DEBUG3(printk("scsi(%ld): HBA in F P2P topology.\n",
1315                     ha->host_no));
1316                 ha->operating_mode = P2P;
1317                 ha->current_topology = ISP_CFG_F;
1318                 strcpy(connect_type, "(F_Port)");
1319                 break;
1320
1321         default:
1322                 DEBUG3(printk("scsi(%ld): HBA in unknown topology %x. "
1323                     "Using NL.\n",
1324                     ha->host_no, topo));
1325                 ha->current_topology = ISP_CFG_NL;
1326                 strcpy(connect_type, "(Loop)");
1327                 break;
1328         }
1329
1330         /* Save Host port and loop ID. */
1331         /* byte order - Big Endian */
1332         ha->d_id.b.domain = domain;
1333         ha->d_id.b.area = area;
1334         ha->d_id.b.al_pa = al_pa;
1335
1336         if (!ha->flags.init_done)
1337                 qla_printk(KERN_INFO, ha,
1338                     "Topology - %s, Host Loop address 0x%x\n",
1339                     connect_type, ha->loop_id);
1340
1341         if (rval) {
1342                 DEBUG2_3(printk("scsi(%ld): FAILED.\n", ha->host_no));
1343         } else {
1344                 DEBUG3(printk("scsi(%ld): exiting normally.\n", ha->host_no));
1345         }
1346
1347         return(rval);
1348 }
1349
1350 /*
1351 * NVRAM configuration for ISP 2xxx
1352 *
1353 * Input:
1354 *      ha                = adapter block pointer.
1355 *
1356 * Output:
1357 *      initialization control block in response_ring
1358 *      host adapters parameters in host adapter block
1359 *
1360 * Returns:
1361 *      0 = success.
1362 */
1363 int
1364 qla2x00_nvram_config(scsi_qla_host_t *ha)
1365 {
1366         int             rval;
1367         uint8_t         chksum = 0;
1368         uint16_t        cnt;
1369         uint8_t         *dptr1, *dptr2;
1370         init_cb_t       *icb = ha->init_cb;
1371         nvram_t         *nv = (nvram_t *)ha->request_ring;
1372         uint8_t         *ptr = (uint8_t *)ha->request_ring;
1373         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1374
1375         rval = QLA_SUCCESS;
1376
1377         /* Determine NVRAM starting address. */
1378         ha->nvram_size = sizeof(nvram_t);
1379         ha->nvram_base = 0;
1380         if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA2300(ha))
1381                 if ((RD_REG_WORD(&reg->ctrl_status) >> 14) == 1)
1382                         ha->nvram_base = 0x80;
1383
1384         /* Get NVRAM data and calculate checksum. */
1385         ha->isp_ops.read_nvram(ha, ptr, ha->nvram_base, ha->nvram_size);
1386         for (cnt = 0, chksum = 0; cnt < ha->nvram_size; cnt++)
1387                 chksum += *ptr++;
1388
1389         DEBUG5(printk("scsi(%ld): Contents of NVRAM\n", ha->host_no));
1390         DEBUG5(qla2x00_dump_buffer((uint8_t *)ha->request_ring,
1391             ha->nvram_size));
1392
1393         /* Bad NVRAM data, set defaults parameters. */
1394         if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' ||
1395             nv->id[2] != 'P' || nv->id[3] != ' ' || nv->nvram_version < 1) {
1396                 /* Reset NVRAM data. */
1397                 qla_printk(KERN_WARNING, ha, "Inconsistent NVRAM detected: "
1398                     "checksum=0x%x id=%c version=0x%x.\n", chksum, nv->id[0],
1399                     nv->nvram_version);
1400                 qla_printk(KERN_WARNING, ha, "Falling back to functioning (yet "
1401                     "invalid -- WWPN) defaults.\n");
1402
1403                 /*
1404                  * Set default initialization control block.
1405                  */
1406                 memset(nv, 0, ha->nvram_size);
1407                 nv->parameter_block_version = ICB_VERSION;
1408
1409                 if (IS_QLA23XX(ha)) {
1410                         nv->firmware_options[0] = BIT_2 | BIT_1;
1411                         nv->firmware_options[1] = BIT_7 | BIT_5;
1412                         nv->add_firmware_options[0] = BIT_5;
1413                         nv->add_firmware_options[1] = BIT_5 | BIT_4;
1414                         nv->frame_payload_size = __constant_cpu_to_le16(2048);
1415                         nv->special_options[1] = BIT_7;
1416                 } else if (IS_QLA2200(ha)) {
1417                         nv->firmware_options[0] = BIT_2 | BIT_1;
1418                         nv->firmware_options[1] = BIT_7 | BIT_5;
1419                         nv->add_firmware_options[0] = BIT_5;
1420                         nv->add_firmware_options[1] = BIT_5 | BIT_4;
1421                         nv->frame_payload_size = __constant_cpu_to_le16(1024);
1422                 } else if (IS_QLA2100(ha)) {
1423                         nv->firmware_options[0] = BIT_3 | BIT_1;
1424                         nv->firmware_options[1] = BIT_5;
1425                         nv->frame_payload_size = __constant_cpu_to_le16(1024);
1426                 }
1427
1428                 nv->max_iocb_allocation = __constant_cpu_to_le16(256);
1429                 nv->execution_throttle = __constant_cpu_to_le16(16);
1430                 nv->retry_count = 8;
1431                 nv->retry_delay = 1;
1432
1433                 nv->port_name[0] = 33;
1434                 nv->port_name[3] = 224;
1435                 nv->port_name[4] = 139;
1436
1437                 nv->login_timeout = 4;
1438
1439                 /*
1440                  * Set default host adapter parameters
1441                  */
1442                 nv->host_p[1] = BIT_2;
1443                 nv->reset_delay = 5;
1444                 nv->port_down_retry_count = 8;
1445                 nv->max_luns_per_target = __constant_cpu_to_le16(8);
1446                 nv->link_down_timeout = 60;
1447
1448                 rval = 1;
1449         }
1450
1451 #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
1452         /*
1453          * The SN2 does not provide BIOS emulation which means you can't change
1454          * potentially bogus BIOS settings. Force the use of default settings
1455          * for link rate and frame size.  Hope that the rest of the settings
1456          * are valid.
1457          */
1458         if (ia64_platform_is("sn2")) {
1459                 nv->frame_payload_size = __constant_cpu_to_le16(2048);
1460                 if (IS_QLA23XX(ha))
1461                         nv->special_options[1] = BIT_7;
1462         }
1463 #endif
1464
1465         /* Reset Initialization control block */
1466         memset(icb, 0, ha->init_cb_size);
1467
1468         /*
1469          * Setup driver NVRAM options.
1470          */
1471         nv->firmware_options[0] |= (BIT_6 | BIT_1);
1472         nv->firmware_options[0] &= ~(BIT_5 | BIT_4);
1473         nv->firmware_options[1] |= (BIT_5 | BIT_0);
1474         nv->firmware_options[1] &= ~BIT_4;
1475
1476         if (IS_QLA23XX(ha)) {
1477                 nv->firmware_options[0] |= BIT_2;
1478                 nv->firmware_options[0] &= ~BIT_3;
1479                 nv->add_firmware_options[1] |= BIT_5 | BIT_4;
1480
1481                 if (IS_QLA2300(ha)) {
1482                         if (ha->fb_rev == FPM_2310) {
1483                                 strcpy(ha->model_number, "QLA2310");
1484                         } else {
1485                                 strcpy(ha->model_number, "QLA2300");
1486                         }
1487                 } else {
1488                         if (rval == 0 &&
1489                             memcmp(nv->model_number, BINZERO,
1490                                     sizeof(nv->model_number)) != 0) {
1491                                 char *st, *en;
1492
1493                                 strncpy(ha->model_number, nv->model_number,
1494                                     sizeof(nv->model_number));
1495                                 st = en = ha->model_number;
1496                                 en += sizeof(nv->model_number) - 1;
1497                                 while (en > st) {
1498                                         if (*en != 0x20 && *en != 0x00)
1499                                                 break;
1500                                         *en-- = '\0';
1501                                 }
1502                         } else {
1503                                 uint16_t        index;
1504
1505                                 index = (ha->pdev->subsystem_device & 0xff);
1506                                 if (index < QLA_MODEL_NAMES) {
1507                                         strcpy(ha->model_number,
1508                                             qla2x00_model_name[index * 2]);
1509                                         ha->model_desc =
1510                                             qla2x00_model_name[index * 2 + 1];
1511                                 } else {
1512                                         strcpy(ha->model_number, "QLA23xx");
1513                                 }
1514                         }
1515                 }
1516         } else if (IS_QLA2200(ha)) {
1517                 nv->firmware_options[0] |= BIT_2;
1518                 /*
1519                  * 'Point-to-point preferred, else loop' is not a safe
1520                  * connection mode setting.
1521                  */
1522                 if ((nv->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) ==
1523                     (BIT_5 | BIT_4)) {
1524                         /* Force 'loop preferred, else point-to-point'. */
1525                         nv->add_firmware_options[0] &= ~(BIT_6 | BIT_5 | BIT_4);
1526                         nv->add_firmware_options[0] |= BIT_5;
1527                 }
1528                 strcpy(ha->model_number, "QLA22xx");
1529         } else /*if (IS_QLA2100(ha))*/ {
1530                 strcpy(ha->model_number, "QLA2100");
1531         }
1532
1533         /*
1534          * Copy over NVRAM RISC parameter block to initialization control block.
1535          */
1536         dptr1 = (uint8_t *)icb;
1537         dptr2 = (uint8_t *)&nv->parameter_block_version;
1538         cnt = (uint8_t *)&icb->request_q_outpointer - (uint8_t *)&icb->version;
1539         while (cnt--)
1540                 *dptr1++ = *dptr2++;
1541
1542         /* Copy 2nd half. */
1543         dptr1 = (uint8_t *)icb->add_firmware_options;
1544         cnt = (uint8_t *)icb->reserved_3 - (uint8_t *)icb->add_firmware_options;
1545         while (cnt--)
1546                 *dptr1++ = *dptr2++;
1547
1548         /* Prepare nodename */
1549         if ((icb->firmware_options[1] & BIT_6) == 0) {
1550                 /*
1551                  * Firmware will apply the following mask if the nodename was
1552                  * not provided.
1553                  */
1554                 memcpy(icb->node_name, icb->port_name, WWN_SIZE);
1555                 icb->node_name[0] &= 0xF0;
1556         }
1557
1558         /*
1559          * Set host adapter parameters.
1560          */
1561         ha->flags.disable_risc_code_load = ((nv->host_p[0] & BIT_4) ? 1 : 0);
1562         /* Always load RISC code on non ISP2[12]00 chips. */
1563         if (!IS_QLA2100(ha) && !IS_QLA2200(ha))
1564                 ha->flags.disable_risc_code_load = 0;
1565         ha->flags.enable_lip_reset = ((nv->host_p[1] & BIT_1) ? 1 : 0);
1566         ha->flags.enable_lip_full_login = ((nv->host_p[1] & BIT_2) ? 1 : 0);
1567         ha->flags.enable_target_reset = ((nv->host_p[1] & BIT_3) ? 1 : 0);
1568         ha->flags.enable_led_scheme = (nv->special_options[1] & BIT_4) ? 1 : 0;
1569
1570         ha->operating_mode =
1571             (icb->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) >> 4;
1572
1573         memcpy(ha->fw_seriallink_options, nv->seriallink_options,
1574             sizeof(ha->fw_seriallink_options));
1575
1576         /* save HBA serial number */
1577         ha->serial0 = icb->port_name[5];
1578         ha->serial1 = icb->port_name[6];
1579         ha->serial2 = icb->port_name[7];
1580         ha->node_name = icb->node_name;
1581         ha->port_name = icb->port_name;
1582
1583         icb->execution_throttle = __constant_cpu_to_le16(0xFFFF);
1584
1585         ha->retry_count = nv->retry_count;
1586
1587         /* Set minimum login_timeout to 4 seconds. */
1588         if (nv->login_timeout < ql2xlogintimeout)
1589                 nv->login_timeout = ql2xlogintimeout;
1590         if (nv->login_timeout < 4)
1591                 nv->login_timeout = 4;
1592         ha->login_timeout = nv->login_timeout;
1593         icb->login_timeout = nv->login_timeout;
1594
1595         /* Set minimum RATOV to 200 tenths of a second. */
1596         ha->r_a_tov = 200;
1597
1598         ha->loop_reset_delay = nv->reset_delay;
1599
1600         /* Link Down Timeout = 0:
1601          *
1602          *      When Port Down timer expires we will start returning
1603          *      I/O's to OS with "DID_NO_CONNECT".
1604          *
1605          * Link Down Timeout != 0:
1606          *
1607          *       The driver waits for the link to come up after link down
1608          *       before returning I/Os to OS with "DID_NO_CONNECT".
1609          */
1610         if (nv->link_down_timeout == 0) {
1611                 ha->loop_down_abort_time =
1612                     (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
1613         } else {
1614                 ha->link_down_timeout =  nv->link_down_timeout;
1615                 ha->loop_down_abort_time =
1616                     (LOOP_DOWN_TIME - ha->link_down_timeout);
1617         }
1618
1619         /*
1620          * Need enough time to try and get the port back.
1621          */
1622         ha->port_down_retry_count = nv->port_down_retry_count;
1623         if (qlport_down_retry)
1624                 ha->port_down_retry_count = qlport_down_retry;
1625         /* Set login_retry_count */
1626         ha->login_retry_count  = nv->retry_count;
1627         if (ha->port_down_retry_count == nv->port_down_retry_count &&
1628             ha->port_down_retry_count > 3)
1629                 ha->login_retry_count = ha->port_down_retry_count;
1630         else if (ha->port_down_retry_count > (int)ha->login_retry_count)
1631                 ha->login_retry_count = ha->port_down_retry_count;
1632         if (ql2xloginretrycount)
1633                 ha->login_retry_count = ql2xloginretrycount;
1634
1635         icb->lun_enables = __constant_cpu_to_le16(0);
1636         icb->command_resource_count = 0;
1637         icb->immediate_notify_resource_count = 0;
1638         icb->timeout = __constant_cpu_to_le16(0);
1639
1640         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
1641                 /* Enable RIO */
1642                 icb->firmware_options[0] &= ~BIT_3;
1643                 icb->add_firmware_options[0] &=
1644                     ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
1645                 icb->add_firmware_options[0] |= BIT_2;
1646                 icb->response_accumulation_timer = 3;
1647                 icb->interrupt_delay_timer = 5;
1648
1649                 ha->flags.process_response_queue = 1;
1650         } else {
1651                 /* Enable ZIO. */
1652                 if (!ha->flags.init_done) {
1653                         ha->zio_mode = icb->add_firmware_options[0] &
1654                             (BIT_3 | BIT_2 | BIT_1 | BIT_0);
1655                         ha->zio_timer = icb->interrupt_delay_timer ?
1656                             icb->interrupt_delay_timer: 2;
1657                 }
1658                 icb->add_firmware_options[0] &=
1659                     ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
1660                 ha->flags.process_response_queue = 0;
1661                 if (ha->zio_mode != QLA_ZIO_DISABLED) {
1662                         ha->zio_mode = QLA_ZIO_MODE_6;
1663
1664                         DEBUG2(printk("scsi(%ld): ZIO mode %d enabled; timer "
1665                             "delay (%d us).\n", ha->host_no, ha->zio_mode,
1666                             ha->zio_timer * 100));
1667                         qla_printk(KERN_INFO, ha,
1668                             "ZIO mode %d enabled; timer delay (%d us).\n",
1669                             ha->zio_mode, ha->zio_timer * 100);
1670
1671                         icb->add_firmware_options[0] |= (uint8_t)ha->zio_mode;
1672                         icb->interrupt_delay_timer = (uint8_t)ha->zio_timer;
1673                         ha->flags.process_response_queue = 1;
1674                 }
1675         }
1676
1677         if (rval) {
1678                 DEBUG2_3(printk(KERN_WARNING
1679                     "scsi(%ld): NVRAM configuration failed!\n", ha->host_no));
1680         }
1681         return (rval);
1682 }
1683
1684 static void
1685 qla2x00_rport_add(void *data)
1686 {
1687         fc_port_t *fcport = data;
1688
1689         qla2x00_reg_remote_port(fcport->ha, fcport);
1690 }
1691
1692 static void
1693 qla2x00_rport_del(void *data)
1694 {
1695         fc_port_t *fcport = data;
1696         struct fc_rport *rport;
1697         unsigned long flags;
1698
1699         spin_lock_irqsave(&fcport->rport_lock, flags);
1700         rport = fcport->drport;
1701         fcport->drport = NULL;
1702         spin_unlock_irqrestore(&fcport->rport_lock, flags);
1703         if (rport)
1704                 fc_remote_port_delete(rport);
1705
1706 }
1707
1708 /**
1709  * qla2x00_alloc_fcport() - Allocate a generic fcport.
1710  * @ha: HA context
1711  * @flags: allocation flags
1712  *
1713  * Returns a pointer to the allocated fcport, or NULL, if none available.
1714  */
1715 fc_port_t *
1716 qla2x00_alloc_fcport(scsi_qla_host_t *ha, gfp_t flags)
1717 {
1718         fc_port_t *fcport;
1719
1720         fcport = kmalloc(sizeof(fc_port_t), flags);
1721         if (fcport == NULL)
1722                 return (fcport);
1723
1724         /* Setup fcport template structure. */
1725         memset(fcport, 0, sizeof (fc_port_t));
1726         fcport->ha = ha;
1727         fcport->port_type = FCT_UNKNOWN;
1728         fcport->loop_id = FC_NO_LOOP_ID;
1729         fcport->iodesc_idx_sent = IODESC_INVALID_INDEX;
1730         atomic_set(&fcport->state, FCS_UNCONFIGURED);
1731         fcport->flags = FCF_RLC_SUPPORT;
1732         fcport->supported_classes = FC_COS_UNSPECIFIED;
1733         spin_lock_init(&fcport->rport_lock);
1734         INIT_WORK(&fcport->rport_add_work, qla2x00_rport_add, fcport);
1735         INIT_WORK(&fcport->rport_del_work, qla2x00_rport_del, fcport);
1736
1737         return (fcport);
1738 }
1739
1740 /*
1741  * qla2x00_configure_loop
1742  *      Updates Fibre Channel Device Database with what is actually on loop.
1743  *
1744  * Input:
1745  *      ha                = adapter block pointer.
1746  *
1747  * Returns:
1748  *      0 = success.
1749  *      1 = error.
1750  *      2 = database was full and device was not configured.
1751  */
1752 static int
1753 qla2x00_configure_loop(scsi_qla_host_t *ha)
1754 {
1755         int  rval;
1756         unsigned long flags, save_flags;
1757
1758         rval = QLA_SUCCESS;
1759
1760         /* Get Initiator ID */
1761         if (test_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags)) {
1762                 rval = qla2x00_configure_hba(ha);
1763                 if (rval != QLA_SUCCESS) {
1764                         DEBUG(printk("scsi(%ld): Unable to configure HBA.\n",
1765                             ha->host_no));
1766                         return (rval);
1767                 }
1768         }
1769
1770         save_flags = flags = ha->dpc_flags;
1771         DEBUG(printk("scsi(%ld): Configure loop -- dpc flags =0x%lx\n",
1772             ha->host_no, flags));
1773
1774         /*
1775          * If we have both an RSCN and PORT UPDATE pending then handle them
1776          * both at the same time.
1777          */
1778         clear_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1779         clear_bit(RSCN_UPDATE, &ha->dpc_flags);
1780
1781         /* Determine what we need to do */
1782         if (ha->current_topology == ISP_CFG_FL &&
1783             (test_bit(LOCAL_LOOP_UPDATE, &flags))) {
1784
1785                 ha->flags.rscn_queue_overflow = 1;
1786                 set_bit(RSCN_UPDATE, &flags);
1787
1788         } else if (ha->current_topology == ISP_CFG_F &&
1789             (test_bit(LOCAL_LOOP_UPDATE, &flags))) {
1790
1791                 ha->flags.rscn_queue_overflow = 1;
1792                 set_bit(RSCN_UPDATE, &flags);
1793                 clear_bit(LOCAL_LOOP_UPDATE, &flags);
1794
1795         } else if (!ha->flags.online ||
1796             (test_bit(ABORT_ISP_ACTIVE, &flags))) {
1797
1798                 ha->flags.rscn_queue_overflow = 1;
1799                 set_bit(RSCN_UPDATE, &flags);
1800                 set_bit(LOCAL_LOOP_UPDATE, &flags);
1801         }
1802
1803         if (test_bit(LOCAL_LOOP_UPDATE, &flags)) {
1804                 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
1805                         rval = QLA_FUNCTION_FAILED;
1806                 } else {
1807                         rval = qla2x00_configure_local_loop(ha);
1808                 }
1809         }
1810
1811         if (rval == QLA_SUCCESS && test_bit(RSCN_UPDATE, &flags)) {
1812                 if (LOOP_TRANSITION(ha)) {
1813                         rval = QLA_FUNCTION_FAILED;
1814                 } else {
1815                         rval = qla2x00_configure_fabric(ha);
1816                 }
1817         }
1818
1819         if (rval == QLA_SUCCESS) {
1820                 if (atomic_read(&ha->loop_down_timer) ||
1821                     test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
1822                         rval = QLA_FUNCTION_FAILED;
1823                 } else {
1824                         atomic_set(&ha->loop_state, LOOP_READY);
1825
1826                         DEBUG(printk("scsi(%ld): LOOP READY\n", ha->host_no));
1827                 }
1828         }
1829
1830         if (rval) {
1831                 DEBUG2_3(printk("%s(%ld): *** FAILED ***\n",
1832                     __func__, ha->host_no));
1833         } else {
1834                 DEBUG3(printk("%s: exiting normally\n", __func__));
1835         }
1836
1837         /* Restore state if a resync event occured during processing */
1838         if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
1839                 if (test_bit(LOCAL_LOOP_UPDATE, &save_flags))
1840                         set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1841                 if (test_bit(RSCN_UPDATE, &save_flags))
1842                         set_bit(RSCN_UPDATE, &ha->dpc_flags);
1843         }
1844
1845         return (rval);
1846 }
1847
1848
1849
1850 /*
1851  * qla2x00_configure_local_loop
1852  *      Updates Fibre Channel Device Database with local loop devices.
1853  *
1854  * Input:
1855  *      ha = adapter block pointer.
1856  *
1857  * Returns:
1858  *      0 = success.
1859  */
1860 static int
1861 qla2x00_configure_local_loop(scsi_qla_host_t *ha)
1862 {
1863         int             rval, rval2;
1864         int             found_devs;
1865         int             found;
1866         fc_port_t       *fcport, *new_fcport;
1867
1868         uint16_t        index;
1869         uint16_t        entries;
1870         char            *id_iter;
1871         uint16_t        loop_id;
1872         uint8_t         domain, area, al_pa;
1873
1874         found_devs = 0;
1875         new_fcport = NULL;
1876         entries = MAX_FIBRE_DEVICES;
1877
1878         DEBUG3(printk("scsi(%ld): Getting FCAL position map\n", ha->host_no));
1879         DEBUG3(qla2x00_get_fcal_position_map(ha, NULL));
1880
1881         /* Get list of logged in devices. */
1882         memset(ha->gid_list, 0, GID_LIST_SIZE);
1883         rval = qla2x00_get_id_list(ha, ha->gid_list, ha->gid_list_dma,
1884             &entries);
1885         if (rval != QLA_SUCCESS)
1886                 goto cleanup_allocation;
1887
1888         DEBUG3(printk("scsi(%ld): Entries in ID list (%d)\n",
1889             ha->host_no, entries));
1890         DEBUG3(qla2x00_dump_buffer((uint8_t *)ha->gid_list,
1891             entries * sizeof(struct gid_list_info)));
1892
1893         /* Allocate temporary fcport for any new fcports discovered. */
1894         new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
1895         if (new_fcport == NULL) {
1896                 rval = QLA_MEMORY_ALLOC_FAILED;
1897                 goto cleanup_allocation;
1898         }
1899         new_fcport->flags &= ~FCF_FABRIC_DEVICE;
1900
1901         /*
1902          * Mark local devices that were present with FCF_DEVICE_LOST for now.
1903          */
1904         list_for_each_entry(fcport, &ha->fcports, list) {
1905                 if (atomic_read(&fcport->state) == FCS_ONLINE &&
1906                     fcport->port_type != FCT_BROADCAST &&
1907                     (fcport->flags & FCF_FABRIC_DEVICE) == 0) {
1908
1909                         DEBUG(printk("scsi(%ld): Marking port lost, "
1910                             "loop_id=0x%04x\n",
1911                             ha->host_no, fcport->loop_id));
1912
1913                         atomic_set(&fcport->state, FCS_DEVICE_LOST);
1914                         fcport->flags &= ~FCF_FARP_DONE;
1915                 }
1916         }
1917
1918         /* Add devices to port list. */
1919         id_iter = (char *)ha->gid_list;
1920         for (index = 0; index < entries; index++) {
1921                 domain = ((struct gid_list_info *)id_iter)->domain;
1922                 area = ((struct gid_list_info *)id_iter)->area;
1923                 al_pa = ((struct gid_list_info *)id_iter)->al_pa;
1924                 if (IS_QLA2100(ha) || IS_QLA2200(ha))
1925                         loop_id = (uint16_t)
1926                             ((struct gid_list_info *)id_iter)->loop_id_2100;
1927                 else
1928                         loop_id = le16_to_cpu(
1929                             ((struct gid_list_info *)id_iter)->loop_id);
1930                 id_iter += ha->gid_list_info_size;
1931
1932                 /* Bypass reserved domain fields. */
1933                 if ((domain & 0xf0) == 0xf0)
1934                         continue;
1935
1936                 /* Bypass if not same domain and area of adapter. */
1937                 if (area && domain &&
1938                     (area != ha->d_id.b.area || domain != ha->d_id.b.domain))
1939                         continue;
1940
1941                 /* Bypass invalid local loop ID. */
1942                 if (loop_id > LAST_LOCAL_LOOP_ID)
1943                         continue;
1944
1945                 /* Fill in member data. */
1946                 new_fcport->d_id.b.domain = domain;
1947                 new_fcport->d_id.b.area = area;
1948                 new_fcport->d_id.b.al_pa = al_pa;
1949                 new_fcport->loop_id = loop_id;
1950                 rval2 = qla2x00_get_port_database(ha, new_fcport, 0);
1951                 if (rval2 != QLA_SUCCESS) {
1952                         DEBUG2(printk("scsi(%ld): Failed to retrieve fcport "
1953                             "information -- get_port_database=%x, "
1954                             "loop_id=0x%04x\n",
1955                             ha->host_no, rval2, new_fcport->loop_id));
1956                         DEBUG2(printk("scsi(%ld): Scheduling resync...\n",
1957                             ha->host_no));
1958                         set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
1959                         continue;
1960                 }
1961
1962                 /* Check for matching device in port list. */
1963                 found = 0;
1964                 fcport = NULL;
1965                 list_for_each_entry(fcport, &ha->fcports, list) {
1966                         if (memcmp(new_fcport->port_name, fcport->port_name,
1967                             WWN_SIZE))
1968                                 continue;
1969
1970                         fcport->flags &= ~(FCF_FABRIC_DEVICE |
1971                             FCF_PERSISTENT_BOUND);
1972                         fcport->loop_id = new_fcport->loop_id;
1973                         fcport->port_type = new_fcport->port_type;
1974                         fcport->d_id.b24 = new_fcport->d_id.b24;
1975                         memcpy(fcport->node_name, new_fcport->node_name,
1976                             WWN_SIZE);
1977
1978                         found++;
1979                         break;
1980                 }
1981
1982                 if (!found) {
1983                         /* New device, add to fcports list. */
1984                         new_fcport->flags &= ~FCF_PERSISTENT_BOUND;
1985                         list_add_tail(&new_fcport->list, &ha->fcports);
1986
1987                         /* Allocate a new replacement fcport. */
1988                         fcport = new_fcport;
1989                         new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
1990                         if (new_fcport == NULL) {
1991                                 rval = QLA_MEMORY_ALLOC_FAILED;
1992                                 goto cleanup_allocation;
1993                         }
1994                         new_fcport->flags &= ~FCF_FABRIC_DEVICE;
1995                 }
1996
1997                 qla2x00_update_fcport(ha, fcport);
1998
1999                 found_devs++;
2000         }
2001
2002 cleanup_allocation:
2003         kfree(new_fcport);
2004
2005         if (rval != QLA_SUCCESS) {
2006                 DEBUG2(printk("scsi(%ld): Configure local loop error exit: "
2007                     "rval=%x\n", ha->host_no, rval));
2008         }
2009
2010         if (found_devs) {
2011                 ha->device_flags |= DFLG_LOCAL_DEVICES;
2012                 ha->device_flags &= ~DFLG_RETRY_LOCAL_DEVICES;
2013         }
2014
2015         return (rval);
2016 }
2017
2018 static void
2019 qla2x00_probe_for_all_luns(scsi_qla_host_t *ha)
2020 {
2021         fc_port_t       *fcport;
2022
2023         qla2x00_mark_all_devices_lost(ha, 0);
2024         list_for_each_entry(fcport, &ha->fcports, list) {
2025                 if (fcport->port_type != FCT_TARGET)
2026                         continue;
2027
2028                 qla2x00_update_fcport(ha, fcport);
2029         }
2030 }
2031
2032 /*
2033  * qla2x00_update_fcport
2034  *      Updates device on list.
2035  *
2036  * Input:
2037  *      ha = adapter block pointer.
2038  *      fcport = port structure pointer.
2039  *
2040  * Return:
2041  *      0  - Success
2042  *  BIT_0 - error
2043  *
2044  * Context:
2045  *      Kernel context.
2046  */
2047 void
2048 qla2x00_update_fcport(scsi_qla_host_t *ha, fc_port_t *fcport)
2049 {
2050         fcport->ha = ha;
2051         fcport->login_retry = 0;
2052         fcport->port_login_retry_count = ha->port_down_retry_count *
2053             PORT_RETRY_TIME;
2054         atomic_set(&fcport->port_down_timer, ha->port_down_retry_count *
2055             PORT_RETRY_TIME);
2056         fcport->flags &= ~FCF_LOGIN_NEEDED;
2057
2058         if (fcport->port_type == FCT_INITIATOR ||
2059             fcport->port_type == FCT_BROADCAST)
2060                 fcport->device_type = TYPE_PROCESSOR;
2061
2062         atomic_set(&fcport->state, FCS_ONLINE);
2063
2064         if (ha->flags.init_done)
2065                 qla2x00_reg_remote_port(ha, fcport);
2066 }
2067
2068 void
2069 qla2x00_reg_remote_port(scsi_qla_host_t *ha, fc_port_t *fcport)
2070 {
2071         struct fc_rport_identifiers rport_ids;
2072         struct fc_rport *rport;
2073         unsigned long flags;
2074
2075         if (fcport->drport)
2076                 qla2x00_rport_del(fcport);
2077         if (fcport->rport)
2078                 return;
2079
2080         rport_ids.node_name = wwn_to_u64(fcport->node_name);
2081         rport_ids.port_name = wwn_to_u64(fcport->port_name);
2082         rport_ids.port_id = fcport->d_id.b.domain << 16 |
2083             fcport->d_id.b.area << 8 | fcport->d_id.b.al_pa;
2084         rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
2085         rport = fc_remote_port_add(ha->host, 0, &rport_ids);
2086         if (!rport) {
2087                 qla_printk(KERN_WARNING, ha,
2088                     "Unable to allocate fc remote port!\n");
2089                 return;
2090         }
2091         spin_lock_irqsave(&fcport->rport_lock, flags);
2092         fcport->rport = rport;
2093         *((fc_port_t **)rport->dd_data) = fcport;
2094         spin_unlock_irqrestore(&fcport->rport_lock, flags);
2095
2096         rport->supported_classes = fcport->supported_classes;
2097
2098         rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
2099         if (fcport->port_type == FCT_INITIATOR)
2100                 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
2101         if (fcport->port_type == FCT_TARGET)
2102                 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
2103         fc_remote_port_rolechg(rport, rport_ids.roles);
2104
2105         if (rport->scsi_target_id != -1 &&
2106             rport->scsi_target_id < ha->host->max_id)
2107                 fcport->os_target_id = rport->scsi_target_id;
2108 }
2109
2110 /*
2111  * qla2x00_configure_fabric
2112  *      Setup SNS devices with loop ID's.
2113  *
2114  * Input:
2115  *      ha = adapter block pointer.
2116  *
2117  * Returns:
2118  *      0 = success.
2119  *      BIT_0 = error
2120  */
2121 static int
2122 qla2x00_configure_fabric(scsi_qla_host_t *ha)
2123 {
2124         int     rval, rval2;
2125         fc_port_t       *fcport, *fcptemp;
2126         uint16_t        next_loopid;
2127         uint16_t        mb[MAILBOX_REGISTER_COUNT];
2128         uint16_t        loop_id;
2129         LIST_HEAD(new_fcports);
2130
2131         /* If FL port exists, then SNS is present */
2132         if (IS_QLA24XX(ha) || IS_QLA54XX(ha))
2133                 loop_id = NPH_F_PORT;
2134         else
2135                 loop_id = SNS_FL_PORT;
2136         rval = qla2x00_get_port_name(ha, loop_id, NULL, 0);
2137         if (rval != QLA_SUCCESS) {
2138                 DEBUG2(printk("scsi(%ld): MBC_GET_PORT_NAME Failed, No FL "
2139                     "Port\n", ha->host_no));
2140
2141                 ha->device_flags &= ~SWITCH_FOUND;
2142                 return (QLA_SUCCESS);
2143         }
2144
2145         /* Mark devices that need re-synchronization. */
2146         rval2 = qla2x00_device_resync(ha);
2147         if (rval2 == QLA_RSCNS_HANDLED) {
2148                 /* No point doing the scan, just continue. */
2149                 return (QLA_SUCCESS);
2150         }
2151         do {
2152                 /* FDMI support. */
2153                 if (ql2xfdmienable &&
2154                     test_and_clear_bit(REGISTER_FDMI_NEEDED, &ha->dpc_flags))
2155                         qla2x00_fdmi_register(ha);
2156
2157                 /* Ensure we are logged into the SNS. */
2158                 if (IS_QLA24XX(ha) || IS_QLA54XX(ha))
2159                         loop_id = NPH_SNS;
2160                 else
2161                         loop_id = SIMPLE_NAME_SERVER;
2162                 ha->isp_ops.fabric_login(ha, loop_id, 0xff, 0xff,
2163                     0xfc, mb, BIT_1 | BIT_0);
2164                 if (mb[0] != MBS_COMMAND_COMPLETE) {
2165                         DEBUG2(qla_printk(KERN_INFO, ha,
2166                             "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x "
2167                             "mb[2]=%x mb[6]=%x mb[7]=%x\n", loop_id,
2168                             mb[0], mb[1], mb[2], mb[6], mb[7]));
2169                         return (QLA_SUCCESS);
2170                 }
2171
2172                 if (test_and_clear_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags)) {
2173                         if (qla2x00_rft_id(ha)) {
2174                                 /* EMPTY */
2175                                 DEBUG2(printk("scsi(%ld): Register FC-4 "
2176                                     "TYPE failed.\n", ha->host_no));
2177                         }
2178                         if (qla2x00_rff_id(ha)) {
2179                                 /* EMPTY */
2180                                 DEBUG2(printk("scsi(%ld): Register FC-4 "
2181                                     "Features failed.\n", ha->host_no));
2182                         }
2183                         if (qla2x00_rnn_id(ha)) {
2184                                 /* EMPTY */
2185                                 DEBUG2(printk("scsi(%ld): Register Node Name "
2186                                     "failed.\n", ha->host_no));
2187                         } else if (qla2x00_rsnn_nn(ha)) {
2188                                 /* EMPTY */
2189                                 DEBUG2(printk("scsi(%ld): Register Symbolic "
2190                                     "Node Name failed.\n", ha->host_no));
2191                         }
2192                 }
2193
2194                 rval = qla2x00_find_all_fabric_devs(ha, &new_fcports);
2195                 if (rval != QLA_SUCCESS)
2196                         break;
2197
2198                 /*
2199                  * Logout all previous fabric devices marked lost, except
2200                  * tape devices.
2201                  */
2202                 list_for_each_entry(fcport, &ha->fcports, list) {
2203                         if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2204                                 break;
2205
2206                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0)
2207                                 continue;
2208
2209                         if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2210                                 qla2x00_mark_device_lost(ha, fcport,
2211                                     ql2xplogiabsentdevice, 0);
2212                                 if (fcport->loop_id != FC_NO_LOOP_ID &&
2213                                     (fcport->flags & FCF_TAPE_PRESENT) == 0 &&
2214                                     fcport->port_type != FCT_INITIATOR &&
2215                                     fcport->port_type != FCT_BROADCAST) {
2216                                         ha->isp_ops.fabric_logout(ha,
2217                                             fcport->loop_id,
2218                                             fcport->d_id.b.domain,
2219                                             fcport->d_id.b.area,
2220                                             fcport->d_id.b.al_pa);
2221                                         fcport->loop_id = FC_NO_LOOP_ID;
2222                                 }
2223                         }
2224                 }
2225
2226                 /* Starting free loop ID. */
2227                 next_loopid = ha->min_external_loopid;
2228
2229                 /*
2230                  * Scan through our port list and login entries that need to be
2231                  * logged in.
2232                  */
2233                 list_for_each_entry(fcport, &ha->fcports, list) {
2234                         if (atomic_read(&ha->loop_down_timer) ||
2235                             test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2236                                 break;
2237
2238                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 ||
2239                             (fcport->flags & FCF_LOGIN_NEEDED) == 0)
2240                                 continue;
2241
2242                         if (fcport->loop_id == FC_NO_LOOP_ID) {
2243                                 fcport->loop_id = next_loopid;
2244                                 rval = qla2x00_find_new_loop_id(ha, fcport);
2245                                 if (rval != QLA_SUCCESS) {
2246                                         /* Ran out of IDs to use */
2247                                         break;
2248                                 }
2249                         }
2250                         /* Login and update database */
2251                         qla2x00_fabric_dev_login(ha, fcport, &next_loopid);
2252                 }
2253
2254                 /* Exit if out of loop IDs. */
2255                 if (rval != QLA_SUCCESS) {
2256                         break;
2257                 }
2258
2259                 /*
2260                  * Login and add the new devices to our port list.
2261                  */
2262                 list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) {
2263                         if (atomic_read(&ha->loop_down_timer) ||
2264                             test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2265                                 break;
2266
2267                         /* Find a new loop ID to use. */
2268                         fcport->loop_id = next_loopid;
2269                         rval = qla2x00_find_new_loop_id(ha, fcport);
2270                         if (rval != QLA_SUCCESS) {
2271                                 /* Ran out of IDs to use */
2272                                 break;
2273                         }
2274
2275                         /* Remove device from the new list and add it to DB */
2276                         list_del(&fcport->list);
2277                         list_add_tail(&fcport->list, &ha->fcports);
2278
2279                         /* Login and update database */
2280                         qla2x00_fabric_dev_login(ha, fcport, &next_loopid);
2281                 }
2282         } while (0);
2283
2284         /* Free all new device structures not processed. */
2285         list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) {
2286                 list_del(&fcport->list);
2287                 kfree(fcport);
2288         }
2289
2290         if (rval) {
2291                 DEBUG2(printk("scsi(%ld): Configure fabric error exit: "
2292                     "rval=%d\n", ha->host_no, rval));
2293         }
2294
2295         return (rval);
2296 }
2297
2298
2299 /*
2300  * qla2x00_find_all_fabric_devs
2301  *
2302  * Input:
2303  *      ha = adapter block pointer.
2304  *      dev = database device entry pointer.
2305  *
2306  * Returns:
2307  *      0 = success.
2308  *
2309  * Context:
2310  *      Kernel context.
2311  */
2312 static int
2313 qla2x00_find_all_fabric_devs(scsi_qla_host_t *ha, struct list_head *new_fcports)
2314 {
2315         int             rval;
2316         uint16_t        loop_id;
2317         fc_port_t       *fcport, *new_fcport, *fcptemp;
2318         int             found;
2319
2320         sw_info_t       *swl;
2321         int             swl_idx;
2322         int             first_dev, last_dev;
2323         port_id_t       wrap, nxt_d_id;
2324
2325         rval = QLA_SUCCESS;
2326
2327         /* Try GID_PT to get device list, else GAN. */
2328         swl = kmalloc(sizeof(sw_info_t) * MAX_FIBRE_DEVICES, GFP_ATOMIC);
2329         if (swl == NULL) {
2330                 /*EMPTY*/
2331                 DEBUG2(printk("scsi(%ld): GID_PT allocations failed, fallback "
2332                     "on GA_NXT\n", ha->host_no));
2333         } else {
2334                 memset(swl, 0, sizeof(sw_info_t) * MAX_FIBRE_DEVICES);
2335                 if (qla2x00_gid_pt(ha, swl) != QLA_SUCCESS) {
2336                         kfree(swl);
2337                         swl = NULL;
2338                 } else if (qla2x00_gpn_id(ha, swl) != QLA_SUCCESS) {
2339                         kfree(swl);
2340                         swl = NULL;
2341                 } else if (qla2x00_gnn_id(ha, swl) != QLA_SUCCESS) {
2342                         kfree(swl);
2343                         swl = NULL;
2344                 }
2345         }
2346         swl_idx = 0;
2347
2348         /* Allocate temporary fcport for any new fcports discovered. */
2349         new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
2350         if (new_fcport == NULL) {
2351                 kfree(swl);
2352                 return (QLA_MEMORY_ALLOC_FAILED);
2353         }
2354         new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
2355
2356         /* Set start port ID scan at adapter ID. */
2357         first_dev = 1;
2358         last_dev = 0;
2359
2360         /* Starting free loop ID. */
2361         loop_id = ha->min_external_loopid;
2362         for (; loop_id <= ha->last_loop_id; loop_id++) {
2363                 if (qla2x00_is_reserved_id(ha, loop_id))
2364                         continue;
2365
2366                 if (atomic_read(&ha->loop_down_timer) || LOOP_TRANSITION(ha))
2367                         break;
2368
2369                 if (swl != NULL) {
2370                         if (last_dev) {
2371                                 wrap.b24 = new_fcport->d_id.b24;
2372                         } else {
2373                                 new_fcport->d_id.b24 = swl[swl_idx].d_id.b24;
2374                                 memcpy(new_fcport->node_name,
2375                                     swl[swl_idx].node_name, WWN_SIZE);
2376                                 memcpy(new_fcport->port_name,
2377                                     swl[swl_idx].port_name, WWN_SIZE);
2378
2379                                 if (swl[swl_idx].d_id.b.rsvd_1 != 0) {
2380                                         last_dev = 1;
2381                                 }
2382                                 swl_idx++;
2383                         }
2384                 } else {
2385                         /* Send GA_NXT to the switch */
2386                         rval = qla2x00_ga_nxt(ha, new_fcport);
2387                         if (rval != QLA_SUCCESS) {
2388                                 qla_printk(KERN_WARNING, ha,
2389                                     "SNS scan failed -- assuming zero-entry "
2390                                     "result...\n");
2391                                 list_for_each_entry_safe(fcport, fcptemp,
2392                                     new_fcports, list) {
2393                                         list_del(&fcport->list);
2394                                         kfree(fcport);
2395                                 }
2396                                 rval = QLA_SUCCESS;
2397                                 break;
2398                         }
2399                 }
2400
2401                 /* If wrap on switch device list, exit. */
2402                 if (first_dev) {
2403                         wrap.b24 = new_fcport->d_id.b24;
2404                         first_dev = 0;
2405                 } else if (new_fcport->d_id.b24 == wrap.b24) {
2406                         DEBUG2(printk("scsi(%ld): device wrap (%02x%02x%02x)\n",
2407                             ha->host_no, new_fcport->d_id.b.domain,
2408                             new_fcport->d_id.b.area, new_fcport->d_id.b.al_pa));
2409                         break;
2410                 }
2411
2412                 /* Bypass if host adapter. */
2413                 if (new_fcport->d_id.b24 == ha->d_id.b24)
2414                         continue;
2415
2416                 /* Bypass if same domain and area of adapter. */
2417                 if (((new_fcport->d_id.b24 & 0xffff00) ==
2418                     (ha->d_id.b24 & 0xffff00)) && ha->current_topology ==
2419                         ISP_CFG_FL)
2420                             continue;
2421
2422                 /* Bypass reserved domain fields. */
2423                 if ((new_fcport->d_id.b.domain & 0xf0) == 0xf0)
2424                         continue;
2425
2426                 /* Locate matching device in database. */
2427                 found = 0;
2428                 list_for_each_entry(fcport, &ha->fcports, list) {
2429                         if (memcmp(new_fcport->port_name, fcport->port_name,
2430                             WWN_SIZE))
2431                                 continue;
2432
2433                         found++;
2434
2435                         /*
2436                          * If address the same and state FCS_ONLINE, nothing
2437                          * changed.
2438                          */
2439                         if (fcport->d_id.b24 == new_fcport->d_id.b24 &&
2440                             atomic_read(&fcport->state) == FCS_ONLINE) {
2441                                 break;
2442                         }
2443
2444                         /*
2445                          * If device was not a fabric device before.
2446                          */
2447                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) {
2448                                 fcport->d_id.b24 = new_fcport->d_id.b24;
2449                                 fcport->loop_id = FC_NO_LOOP_ID;
2450                                 fcport->flags |= (FCF_FABRIC_DEVICE |
2451                                     FCF_LOGIN_NEEDED);
2452                                 fcport->flags &= ~FCF_PERSISTENT_BOUND;
2453                                 break;
2454                         }
2455
2456                         /*
2457                          * Port ID changed or device was marked to be updated;
2458                          * Log it out if still logged in and mark it for
2459                          * relogin later.
2460                          */
2461                         fcport->d_id.b24 = new_fcport->d_id.b24;
2462                         fcport->flags |= FCF_LOGIN_NEEDED;
2463                         if (fcport->loop_id != FC_NO_LOOP_ID &&
2464                             (fcport->flags & FCF_TAPE_PRESENT) == 0 &&
2465                             fcport->port_type != FCT_INITIATOR &&
2466                             fcport->port_type != FCT_BROADCAST) {
2467                                 ha->isp_ops.fabric_logout(ha, fcport->loop_id,
2468                                     fcport->d_id.b.domain, fcport->d_id.b.area,
2469                                     fcport->d_id.b.al_pa);
2470                                 fcport->loop_id = FC_NO_LOOP_ID;
2471                         }
2472
2473                         break;
2474                 }
2475
2476                 if (found)
2477                         continue;
2478
2479                 /* If device was not in our fcports list, then add it. */
2480                 list_add_tail(&new_fcport->list, new_fcports);
2481
2482                 /* Allocate a new replacement fcport. */
2483                 nxt_d_id.b24 = new_fcport->d_id.b24;
2484                 new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
2485                 if (new_fcport == NULL) {
2486                         kfree(swl);
2487                         return (QLA_MEMORY_ALLOC_FAILED);
2488                 }
2489                 new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
2490                 new_fcport->d_id.b24 = nxt_d_id.b24;
2491         }
2492
2493         kfree(swl);
2494         kfree(new_fcport);
2495
2496         if (!list_empty(new_fcports))
2497                 ha->device_flags |= DFLG_FABRIC_DEVICES;
2498
2499         return (rval);
2500 }
2501
2502 /*
2503  * qla2x00_find_new_loop_id
2504  *      Scan through our port list and find a new usable loop ID.
2505  *
2506  * Input:
2507  *      ha:     adapter state pointer.
2508  *      dev:    port structure pointer.
2509  *
2510  * Returns:
2511  *      qla2x00 local function return status code.
2512  *
2513  * Context:
2514  *      Kernel context.
2515  */
2516 int
2517 qla2x00_find_new_loop_id(scsi_qla_host_t *ha, fc_port_t *dev)
2518 {
2519         int     rval;
2520         int     found;
2521         fc_port_t *fcport;
2522         uint16_t first_loop_id;
2523
2524         rval = QLA_SUCCESS;
2525
2526         /* Save starting loop ID. */
2527         first_loop_id = dev->loop_id;
2528
2529         for (;;) {
2530                 /* Skip loop ID if already used by adapter. */
2531                 if (dev->loop_id == ha->loop_id) {
2532                         dev->loop_id++;
2533                 }
2534
2535                 /* Skip reserved loop IDs. */
2536                 while (qla2x00_is_reserved_id(ha, dev->loop_id)) {
2537                         dev->loop_id++;
2538                 }
2539
2540                 /* Reset loop ID if passed the end. */
2541                 if (dev->loop_id > ha->last_loop_id) {
2542                         /* first loop ID. */
2543                         dev->loop_id = ha->min_external_loopid;
2544                 }
2545
2546                 /* Check for loop ID being already in use. */
2547                 found = 0;
2548                 fcport = NULL;
2549                 list_for_each_entry(fcport, &ha->fcports, list) {
2550                         if (fcport->loop_id == dev->loop_id && fcport != dev) {
2551                                 /* ID possibly in use */
2552                                 found++;
2553                                 break;
2554                         }
2555                 }
2556
2557                 /* If not in use then it is free to use. */
2558                 if (!found) {
2559                         break;
2560                 }
2561
2562                 /* ID in use. Try next value. */
2563                 dev->loop_id++;
2564
2565                 /* If wrap around. No free ID to use. */
2566                 if (dev->loop_id == first_loop_id) {
2567                         dev->loop_id = FC_NO_LOOP_ID;
2568                         rval = QLA_FUNCTION_FAILED;
2569                         break;
2570                 }
2571         }
2572
2573         return (rval);
2574 }
2575
2576 /*
2577  * qla2x00_device_resync
2578  *      Marks devices in the database that needs resynchronization.
2579  *
2580  * Input:
2581  *      ha = adapter block pointer.
2582  *
2583  * Context:
2584  *      Kernel context.
2585  */
2586 static int
2587 qla2x00_device_resync(scsi_qla_host_t *ha)
2588 {
2589         int     rval;
2590         int     rval2;
2591         uint32_t mask;
2592         fc_port_t *fcport;
2593         uint32_t rscn_entry;
2594         uint8_t rscn_out_iter;
2595         uint8_t format;
2596         port_id_t d_id;
2597
2598         rval = QLA_RSCNS_HANDLED;
2599
2600         while (ha->rscn_out_ptr != ha->rscn_in_ptr ||
2601             ha->flags.rscn_queue_overflow) {
2602
2603                 rscn_entry = ha->rscn_queue[ha->rscn_out_ptr];
2604                 format = MSB(MSW(rscn_entry));
2605                 d_id.b.domain = LSB(MSW(rscn_entry));
2606                 d_id.b.area = MSB(LSW(rscn_entry));
2607                 d_id.b.al_pa = LSB(LSW(rscn_entry));
2608
2609                 DEBUG(printk("scsi(%ld): RSCN queue entry[%d] = "
2610                     "[%02x/%02x%02x%02x].\n",
2611                     ha->host_no, ha->rscn_out_ptr, format, d_id.b.domain,
2612                     d_id.b.area, d_id.b.al_pa));
2613
2614                 ha->rscn_out_ptr++;
2615                 if (ha->rscn_out_ptr == MAX_RSCN_COUNT)
2616                         ha->rscn_out_ptr = 0;
2617
2618                 /* Skip duplicate entries. */
2619                 for (rscn_out_iter = ha->rscn_out_ptr;
2620                     !ha->flags.rscn_queue_overflow &&
2621                     rscn_out_iter != ha->rscn_in_ptr;
2622                     rscn_out_iter = (rscn_out_iter ==
2623                         (MAX_RSCN_COUNT - 1)) ? 0: rscn_out_iter + 1) {
2624
2625                         if (rscn_entry != ha->rscn_queue[rscn_out_iter])
2626                                 break;
2627
2628                         DEBUG(printk("scsi(%ld): Skipping duplicate RSCN queue "
2629                             "entry found at [%d].\n", ha->host_no,
2630                             rscn_out_iter));
2631
2632                         ha->rscn_out_ptr = rscn_out_iter;
2633                 }
2634
2635                 /* Queue overflow, set switch default case. */
2636                 if (ha->flags.rscn_queue_overflow) {
2637                         DEBUG(printk("scsi(%ld): device_resync: rscn "
2638                             "overflow.\n", ha->host_no));
2639
2640                         format = 3;
2641                         ha->flags.rscn_queue_overflow = 0;
2642                 }
2643
2644                 switch (format) {
2645                 case 0:
2646                         if (ql2xprocessrscn &&
2647                             !IS_QLA2100(ha) && !IS_QLA2200(ha) &&
2648                             !IS_QLA6312(ha) && !IS_QLA6322(ha) &&
2649                             !IS_QLA24XX(ha) && !IS_QLA54XX(ha) &&
2650                             ha->flags.init_done) {
2651                                 /* Handle port RSCN via asyncronous IOCBs */
2652                                 rval2 = qla2x00_handle_port_rscn(ha, rscn_entry,
2653                                     NULL, 0);
2654                                 if (rval2 == QLA_SUCCESS)
2655                                         continue;
2656                         }
2657                         mask = 0xffffff;
2658                         break;
2659                 case 1:
2660                         mask = 0xffff00;
2661                         break;
2662                 case 2:
2663                         mask = 0xff0000;
2664                         break;
2665                 default:
2666                         mask = 0x0;
2667                         d_id.b24 = 0;
2668                         ha->rscn_out_ptr = ha->rscn_in_ptr;
2669                         break;
2670                 }
2671
2672                 rval = QLA_SUCCESS;
2673
2674                 /* Abort any outstanding IO descriptors. */
2675                 if (!IS_QLA2100(ha) && !IS_QLA2200(ha))
2676                         qla2x00_cancel_io_descriptors(ha);
2677
2678                 list_for_each_entry(fcport, &ha->fcports, list) {
2679                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 ||
2680                             (fcport->d_id.b24 & mask) != d_id.b24 ||
2681                             fcport->port_type == FCT_BROADCAST)
2682                                 continue;
2683
2684                         if (atomic_read(&fcport->state) == FCS_ONLINE) {
2685                                 if (format != 3 ||
2686                                     fcport->port_type != FCT_INITIATOR) {
2687                                         qla2x00_mark_device_lost(ha, fcport,
2688                                             0, 0);
2689                                 }
2690                         }
2691                         fcport->flags &= ~FCF_FARP_DONE;
2692                 }
2693         }
2694         return (rval);
2695 }
2696
2697 /*
2698  * qla2x00_fabric_dev_login
2699  *      Login fabric target device and update FC port database.
2700  *
2701  * Input:
2702  *      ha:             adapter state pointer.
2703  *      fcport:         port structure list pointer.
2704  *      next_loopid:    contains value of a new loop ID that can be used
2705  *                      by the next login attempt.
2706  *
2707  * Returns:
2708  *      qla2x00 local function return status code.
2709  *
2710  * Context:
2711  *      Kernel context.
2712  */
2713 static int
2714 qla2x00_fabric_dev_login(scsi_qla_host_t *ha, fc_port_t *fcport,
2715     uint16_t *next_loopid)
2716 {
2717         int     rval;
2718         int     retry;
2719         uint8_t opts;
2720
2721         rval = QLA_SUCCESS;
2722         retry = 0;
2723
2724         rval = qla2x00_fabric_login(ha, fcport, next_loopid);
2725         if (rval == QLA_SUCCESS) {
2726                 /* Send an ADISC to tape devices.*/
2727                 opts = 0;
2728                 if (fcport->flags & FCF_TAPE_PRESENT)
2729                         opts |= BIT_1;
2730                 rval = qla2x00_get_port_database(ha, fcport, opts);
2731                 if (rval != QLA_SUCCESS) {
2732                         ha->isp_ops.fabric_logout(ha, fcport->loop_id,
2733                             fcport->d_id.b.domain, fcport->d_id.b.area,
2734                             fcport->d_id.b.al_pa);
2735                         qla2x00_mark_device_lost(ha, fcport, 1, 0);
2736                 } else {
2737                         qla2x00_update_fcport(ha, fcport);
2738                 }
2739         }
2740
2741         return (rval);
2742 }
2743
2744 /*
2745  * qla2x00_fabric_login
2746  *      Issue fabric login command.
2747  *
2748  * Input:
2749  *      ha = adapter block pointer.
2750  *      device = pointer to FC device type structure.
2751  *
2752  * Returns:
2753  *      0 - Login successfully
2754  *      1 - Login failed
2755  *      2 - Initiator device
2756  *      3 - Fatal error
2757  */
2758 int
2759 qla2x00_fabric_login(scsi_qla_host_t *ha, fc_port_t *fcport,
2760     uint16_t *next_loopid)
2761 {
2762         int     rval;
2763         int     retry;
2764         uint16_t tmp_loopid;
2765         uint16_t mb[MAILBOX_REGISTER_COUNT];
2766
2767         retry = 0;
2768         tmp_loopid = 0;
2769
2770         for (;;) {
2771                 DEBUG(printk("scsi(%ld): Trying Fabric Login w/loop id 0x%04x "
2772                     "for port %02x%02x%02x.\n",
2773                     ha->host_no, fcport->loop_id, fcport->d_id.b.domain,
2774                     fcport->d_id.b.area, fcport->d_id.b.al_pa));
2775
2776                 /* Login fcport on switch. */
2777                 ha->isp_ops.fabric_login(ha, fcport->loop_id,
2778                     fcport->d_id.b.domain, fcport->d_id.b.area,
2779                     fcport->d_id.b.al_pa, mb, BIT_0);
2780                 if (mb[0] == MBS_PORT_ID_USED) {
2781                         /*
2782                          * Device has another loop ID.  The firmware team
2783                          * recommends the driver perform an implicit login with
2784                          * the specified ID again. The ID we just used is save
2785                          * here so we return with an ID that can be tried by
2786                          * the next login.
2787                          */
2788                         retry++;
2789                         tmp_loopid = fcport->loop_id;
2790                         fcport->loop_id = mb[1];
2791
2792                         DEBUG(printk("Fabric Login: port in use - next "
2793                             "loop id=0x%04x, port Id=%02x%02x%02x.\n",
2794                             fcport->loop_id, fcport->d_id.b.domain,
2795                             fcport->d_id.b.area, fcport->d_id.b.al_pa));
2796
2797                 } else if (mb[0] == MBS_COMMAND_COMPLETE) {
2798                         /*
2799                          * Login succeeded.
2800                          */
2801                         if (retry) {
2802                                 /* A retry occurred before. */
2803                                 *next_loopid = tmp_loopid;
2804                         } else {
2805                                 /*
2806                                  * No retry occurred before. Just increment the
2807                                  * ID value for next login.
2808                                  */
2809                                 *next_loopid = (fcport->loop_id + 1);
2810                         }
2811
2812                         if (mb[1] & BIT_0) {
2813                                 fcport->port_type = FCT_INITIATOR;
2814                         } else {
2815                                 fcport->port_type = FCT_TARGET;
2816                                 if (mb[1] & BIT_1) {
2817                                         fcport->flags |= FCF_TAPE_PRESENT;
2818                                 }
2819                         }
2820
2821                         if (mb[10] & BIT_0)
2822                                 fcport->supported_classes |= FC_COS_CLASS2;
2823                         if (mb[10] & BIT_1)
2824                                 fcport->supported_classes |= FC_COS_CLASS3;
2825
2826                         rval = QLA_SUCCESS;
2827                         break;
2828                 } else if (mb[0] == MBS_LOOP_ID_USED) {
2829                         /*
2830                          * Loop ID already used, try next loop ID.
2831                          */
2832                         fcport->loop_id++;
2833                         rval = qla2x00_find_new_loop_id(ha, fcport);
2834                         if (rval != QLA_SUCCESS) {
2835                                 /* Ran out of loop IDs to use */
2836                                 break;
2837                         }
2838                 } else if (mb[0] == MBS_COMMAND_ERROR) {
2839                         /*
2840                          * Firmware possibly timed out during login. If NO
2841                          * retries are left to do then the device is declared
2842                          * dead.
2843                          */
2844                         *next_loopid = fcport->loop_id;
2845                         ha->isp_ops.fabric_logout(ha, fcport->loop_id,
2846                             fcport->d_id.b.domain, fcport->d_id.b.area,
2847                             fcport->d_id.b.al_pa);
2848                         qla2x00_mark_device_lost(ha, fcport, 1, 0);
2849
2850                         rval = 1;
2851                         break;
2852                 } else {
2853                         /*
2854                          * unrecoverable / not handled error
2855                          */
2856                         DEBUG2(printk("%s(%ld): failed=%x port_id=%02x%02x%02x "
2857                             "loop_id=%x jiffies=%lx.\n",
2858                             __func__, ha->host_no, mb[0],
2859                             fcport->d_id.b.domain, fcport->d_id.b.area,
2860                             fcport->d_id.b.al_pa, fcport->loop_id, jiffies));
2861
2862                         *next_loopid = fcport->loop_id;
2863                         ha->isp_ops.fabric_logout(ha, fcport->loop_id,
2864                             fcport->d_id.b.domain, fcport->d_id.b.area,
2865                             fcport->d_id.b.al_pa);
2866                         fcport->loop_id = FC_NO_LOOP_ID;
2867                         fcport->login_retry = 0;
2868
2869                         rval = 3;
2870                         break;
2871                 }
2872         }
2873
2874         return (rval);
2875 }
2876
2877 /*
2878  * qla2x00_local_device_login
2879  *      Issue local device login command.
2880  *
2881  * Input:
2882  *      ha = adapter block pointer.
2883  *      loop_id = loop id of device to login to.
2884  *
2885  * Returns (Where's the #define!!!!):
2886  *      0 - Login successfully
2887  *      1 - Login failed
2888  *      3 - Fatal error
2889  */
2890 int
2891 qla2x00_local_device_login(scsi_qla_host_t *ha, fc_port_t *fcport)
2892 {
2893         int             rval;
2894         uint16_t        mb[MAILBOX_REGISTER_COUNT];
2895
2896         memset(mb, 0, sizeof(mb));
2897         rval = qla2x00_login_local_device(ha, fcport, mb, BIT_0);
2898         if (rval == QLA_SUCCESS) {
2899                 /* Interrogate mailbox registers for any errors */
2900                 if (mb[0] == MBS_COMMAND_ERROR)
2901                         rval = 1;
2902                 else if (mb[0] == MBS_COMMAND_PARAMETER_ERROR)
2903                         /* device not in PCB table */
2904                         rval = 3;
2905         }
2906
2907         return (rval);
2908 }
2909
2910 /*
2911  *  qla2x00_loop_resync
2912  *      Resync with fibre channel devices.
2913  *
2914  * Input:
2915  *      ha = adapter block pointer.
2916  *
2917  * Returns:
2918  *      0 = success
2919  */
2920 int
2921 qla2x00_loop_resync(scsi_qla_host_t *ha)
2922 {
2923         int   rval;
2924         uint32_t wait_time;
2925
2926         rval = QLA_SUCCESS;
2927
2928         atomic_set(&ha->loop_state, LOOP_UPDATE);
2929         clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
2930         if (ha->flags.online) {
2931                 if (!(rval = qla2x00_fw_ready(ha))) {
2932                         /* Wait at most MAX_TARGET RSCNs for a stable link. */
2933                         wait_time = 256;
2934                         do {
2935                                 atomic_set(&ha->loop_state, LOOP_UPDATE);
2936
2937                                 /* Issue a marker after FW becomes ready. */
2938                                 qla2x00_marker(ha, 0, 0, MK_SYNC_ALL);
2939                                 ha->marker_needed = 0;
2940
2941                                 /* Remap devices on Loop. */
2942                                 clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2943
2944                                 qla2x00_configure_loop(ha);
2945                                 wait_time--;
2946                         } while (!atomic_read(&ha->loop_down_timer) &&
2947                                 !(test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) &&
2948                                 wait_time &&
2949                                 (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)));
2950                 }
2951         }
2952
2953         if (test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2954                 return (QLA_FUNCTION_FAILED);
2955         }
2956
2957         if (rval) {
2958                 DEBUG2_3(printk("%s(): **** FAILED ****\n", __func__));
2959         }
2960
2961         return (rval);
2962 }
2963
2964 void
2965 qla2x00_rescan_fcports(scsi_qla_host_t *ha)
2966 {
2967         int rescan_done;
2968         fc_port_t *fcport;
2969
2970         rescan_done = 0;
2971         list_for_each_entry(fcport, &ha->fcports, list) {
2972                 if ((fcport->flags & FCF_RESCAN_NEEDED) == 0)
2973                         continue;
2974
2975                 qla2x00_update_fcport(ha, fcport);
2976                 fcport->flags &= ~FCF_RESCAN_NEEDED;
2977
2978                 rescan_done = 1;
2979         }
2980         qla2x00_probe_for_all_luns(ha);
2981 }
2982
2983 void
2984 qla2x00_update_fcports(scsi_qla_host_t *ha)
2985 {
2986         fc_port_t *fcport;
2987
2988         /* Go with deferred removal of rport references. */
2989         list_for_each_entry(fcport, &ha->fcports, list)
2990                 if (fcport->drport)
2991                         qla2x00_rport_del(fcport);
2992 }
2993
2994 /*
2995 *  qla2x00_abort_isp
2996 *      Resets ISP and aborts all outstanding commands.
2997 *
2998 * Input:
2999 *      ha           = adapter block pointer.
3000 *
3001 * Returns:
3002 *      0 = success
3003 */
3004 int
3005 qla2x00_abort_isp(scsi_qla_host_t *ha)
3006 {
3007         unsigned long flags = 0;
3008         uint16_t       cnt;
3009         srb_t          *sp;
3010         uint8_t        status = 0;
3011
3012         if (ha->flags.online) {
3013                 ha->flags.online = 0;
3014                 clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
3015
3016                 qla_printk(KERN_INFO, ha,
3017                     "Performing ISP error recovery - ha= %p.\n", ha);
3018                 ha->isp_ops.reset_chip(ha);
3019
3020                 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
3021                 if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
3022                         atomic_set(&ha->loop_state, LOOP_DOWN);
3023                         qla2x00_mark_all_devices_lost(ha, 0);
3024                 } else {
3025                         if (!atomic_read(&ha->loop_down_timer))
3026                                 atomic_set(&ha->loop_down_timer,
3027                                     LOOP_DOWN_TIME);
3028                 }
3029
3030                 spin_lock_irqsave(&ha->hardware_lock, flags);
3031                 /* Requeue all commands in outstanding command list. */
3032                 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
3033                         sp = ha->outstanding_cmds[cnt];
3034                         if (sp) {
3035                                 ha->outstanding_cmds[cnt] = NULL;
3036                                 sp->flags = 0;
3037                                 sp->cmd->result = DID_RESET << 16;
3038                                 sp->cmd->host_scribble = (unsigned char *)NULL;
3039                                 qla2x00_sp_compl(ha, sp);
3040                         }
3041                 }
3042                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3043
3044                 ha->isp_ops.nvram_config(ha);
3045
3046                 if (!qla2x00_restart_isp(ha)) {
3047                         clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
3048
3049                         if (!atomic_read(&ha->loop_down_timer)) {
3050                                 /*
3051                                  * Issue marker command only when we are going
3052                                  * to start the I/O .
3053                                  */
3054                                 ha->marker_needed = 1;
3055                         }
3056
3057                         ha->flags.online = 1;
3058
3059                         ha->isp_ops.enable_intrs(ha);
3060
3061                         ha->isp_abort_cnt = 0;
3062                         clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
3063                 } else {        /* failed the ISP abort */
3064                         ha->flags.online = 1;
3065                         if (test_bit(ISP_ABORT_RETRY, &ha->dpc_flags)) {
3066                                 if (ha->isp_abort_cnt == 0) {
3067                                         qla_printk(KERN_WARNING, ha,
3068                                             "ISP error recovery failed - "
3069                                             "board disabled\n");
3070                                         /*
3071                                          * The next call disables the board
3072                                          * completely.
3073                                          */
3074                                         ha->isp_ops.reset_adapter(ha);
3075                                         ha->flags.online = 0;
3076                                         clear_bit(ISP_ABORT_RETRY,
3077                                             &ha->dpc_flags);
3078                                         status = 0;
3079                                 } else { /* schedule another ISP abort */
3080                                         ha->isp_abort_cnt--;
3081                                         DEBUG(printk("qla%ld: ISP abort - "
3082                                             "retry remaining %d\n",
3083                                             ha->host_no, ha->isp_abort_cnt);)
3084                                         status = 1;
3085                                 }
3086                         } else {
3087                                 ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT;
3088                                 DEBUG(printk("qla2x00(%ld): ISP error recovery "
3089                                     "- retrying (%d) more times\n",
3090                                     ha->host_no, ha->isp_abort_cnt);)
3091                                 set_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
3092                                 status = 1;
3093                         }
3094                 }
3095
3096         }
3097
3098         if (status) {
3099                 qla_printk(KERN_INFO, ha,
3100                         "qla2x00_abort_isp: **** FAILED ****\n");
3101         } else {
3102                 DEBUG(printk(KERN_INFO
3103                                 "qla2x00_abort_isp(%ld): exiting.\n",
3104                                 ha->host_no);)
3105         }
3106
3107         return(status);
3108 }
3109
3110 /*
3111 *  qla2x00_restart_isp
3112 *      restarts the ISP after a reset
3113 *
3114 * Input:
3115 *      ha = adapter block pointer.
3116 *
3117 * Returns:
3118 *      0 = success
3119 */
3120 static int
3121 qla2x00_restart_isp(scsi_qla_host_t *ha)
3122 {
3123         uint8_t         status = 0;
3124         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3125         unsigned long   flags = 0;
3126         uint32_t wait_time;
3127
3128         /* If firmware needs to be loaded */
3129         if (qla2x00_isp_firmware(ha)) {
3130                 ha->flags.online = 0;
3131                 if (!(status = ha->isp_ops.chip_diag(ha))) {
3132                         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
3133                                 status = qla2x00_setup_chip(ha);
3134                                 goto done;
3135                         }
3136
3137                         spin_lock_irqsave(&ha->hardware_lock, flags);
3138
3139                         if (!IS_QLA24XX(ha) && !IS_QLA54XX(ha)) {
3140                                 /*
3141                                  * Disable SRAM, Instruction RAM and GP RAM
3142                                  * parity.
3143                                  */
3144                                 WRT_REG_WORD(&reg->hccr,
3145                                     (HCCR_ENABLE_PARITY + 0x0));
3146                                 RD_REG_WORD(&reg->hccr);
3147                         }
3148
3149                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3150
3151                         status = qla2x00_setup_chip(ha);
3152
3153                         spin_lock_irqsave(&ha->hardware_lock, flags);
3154
3155                         if (!IS_QLA24XX(ha) && !IS_QLA54XX(ha)) {
3156                                 /* Enable proper parity */
3157                                 if (IS_QLA2300(ha))
3158                                         /* SRAM parity */
3159                                         WRT_REG_WORD(&reg->hccr,
3160                                             (HCCR_ENABLE_PARITY + 0x1));
3161                                 else
3162                                         /*
3163                                          * SRAM, Instruction RAM and GP RAM
3164                                          * parity.
3165                                          */
3166                                         WRT_REG_WORD(&reg->hccr,
3167                                             (HCCR_ENABLE_PARITY + 0x7));
3168                                 RD_REG_WORD(&reg->hccr);
3169                         }
3170
3171                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3172                 }
3173         }
3174
3175  done:
3176         if (!status && !(status = qla2x00_init_rings(ha))) {
3177                 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
3178                 if (!(status = qla2x00_fw_ready(ha))) {
3179                         DEBUG(printk("%s(): Start configure loop, "
3180                             "status = %d\n", __func__, status);)
3181
3182                         /* Issue a marker after FW becomes ready. */
3183                         qla2x00_marker(ha, 0, 0, MK_SYNC_ALL);
3184
3185                         ha->flags.online = 1;
3186                         /* Wait at most MAX_TARGET RSCNs for a stable link. */
3187                         wait_time = 256;
3188                         do {
3189                                 clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
3190                                 qla2x00_configure_loop(ha);
3191                                 wait_time--;
3192                         } while (!atomic_read(&ha->loop_down_timer) &&
3193                                 !(test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) &&
3194                                 wait_time &&
3195                                 (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)));
3196                 }
3197
3198                 /* if no cable then assume it's good */
3199                 if ((ha->device_flags & DFLG_NO_CABLE))
3200                         status = 0;
3201
3202                 DEBUG(printk("%s(): Configure loop done, status = 0x%x\n",
3203                                 __func__,
3204                                 status);)
3205         }
3206         return (status);
3207 }
3208
3209 /*
3210 * qla2x00_reset_adapter
3211 *      Reset adapter.
3212 *
3213 * Input:
3214 *      ha = adapter block pointer.
3215 */
3216 void
3217 qla2x00_reset_adapter(scsi_qla_host_t *ha)
3218 {
3219         unsigned long flags = 0;
3220         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3221
3222         ha->flags.online = 0;
3223         ha->isp_ops.disable_intrs(ha);
3224
3225         spin_lock_irqsave(&ha->hardware_lock, flags);
3226         WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
3227         RD_REG_WORD(&reg->hccr);                        /* PCI Posting. */
3228         WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
3229         RD_REG_WORD(&reg->hccr);                        /* PCI Posting. */
3230         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3231 }
3232
3233 void
3234 qla24xx_reset_adapter(scsi_qla_host_t *ha)
3235 {
3236         unsigned long flags = 0;
3237         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
3238
3239         ha->flags.online = 0;
3240         ha->isp_ops.disable_intrs(ha);
3241
3242         spin_lock_irqsave(&ha->hardware_lock, flags);
3243         WRT_REG_DWORD(&reg->hccr, HCCRX_SET_RISC_RESET);
3244         RD_REG_DWORD(&reg->hccr);
3245         WRT_REG_DWORD(&reg->hccr, HCCRX_REL_RISC_PAUSE);
3246         RD_REG_DWORD(&reg->hccr);
3247         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3248 }
3249
3250 int
3251 qla24xx_nvram_config(scsi_qla_host_t *ha)
3252 {
3253         int   rval;
3254         struct init_cb_24xx *icb;
3255         struct nvram_24xx *nv;
3256         uint32_t *dptr;
3257         uint8_t  *dptr1, *dptr2;
3258         uint32_t chksum;
3259         uint16_t cnt;
3260
3261         rval = QLA_SUCCESS;
3262         icb = (struct init_cb_24xx *)ha->init_cb;
3263         nv = (struct nvram_24xx *)ha->request_ring;
3264
3265         /* Determine NVRAM starting address. */
3266         ha->nvram_size = sizeof(struct nvram_24xx);
3267         ha->nvram_base = FA_NVRAM_FUNC0_ADDR;
3268         ha->vpd_size = FA_NVRAM_VPD_SIZE;
3269         ha->vpd_base = FA_NVRAM_VPD0_ADDR;
3270         if (PCI_FUNC(ha->pdev->devfn)) {
3271                 ha->nvram_base = FA_NVRAM_FUNC1_ADDR;
3272                 ha->vpd_base = FA_NVRAM_VPD1_ADDR;
3273         }
3274
3275         /* Get NVRAM data and calculate checksum. */
3276         dptr = (uint32_t *)nv;
3277         ha->isp_ops.read_nvram(ha, (uint8_t *)dptr, ha->nvram_base,
3278             ha->nvram_size);
3279         for (cnt = 0, chksum = 0; cnt < ha->nvram_size >> 2; cnt++)
3280                 chksum += le32_to_cpu(*dptr++);
3281
3282         DEBUG5(printk("scsi(%ld): Contents of NVRAM\n", ha->host_no));
3283         DEBUG5(qla2x00_dump_buffer((uint8_t *)ha->request_ring,
3284             ha->nvram_size));
3285
3286         /* Bad NVRAM data, set defaults parameters. */
3287         if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' || nv->id[2] != 'P'
3288             || nv->id[3] != ' ' ||
3289             nv->nvram_version < __constant_cpu_to_le16(ICB_VERSION)) {
3290                 /* Reset NVRAM data. */
3291                 qla_printk(KERN_WARNING, ha, "Inconsistent NVRAM detected: "
3292                     "checksum=0x%x id=%c version=0x%x.\n", chksum, nv->id[0],
3293                     le16_to_cpu(nv->nvram_version));
3294                 qla_printk(KERN_WARNING, ha, "Falling back to functioning (yet "
3295                     "invalid -- WWPN) defaults.\n");
3296
3297                 /*
3298                  * Set default initialization control block.
3299                  */
3300                 memset(nv, 0, ha->nvram_size);
3301                 nv->nvram_version = __constant_cpu_to_le16(ICB_VERSION);
3302                 nv->version = __constant_cpu_to_le16(ICB_VERSION);
3303                 nv->frame_payload_size = __constant_cpu_to_le16(2048);
3304                 nv->execution_throttle = __constant_cpu_to_le16(0xFFFF);
3305                 nv->exchange_count = __constant_cpu_to_le16(0);
3306                 nv->hard_address = __constant_cpu_to_le16(124);
3307                 nv->port_name[0] = 0x21;
3308                 nv->port_name[1] = 0x00 + PCI_FUNC(ha->pdev->devfn);
3309                 nv->port_name[2] = 0x00;
3310                 nv->port_name[3] = 0xe0;
3311                 nv->port_name[4] = 0x8b;
3312                 nv->port_name[5] = 0x1c;
3313                 nv->port_name[6] = 0x55;
3314                 nv->port_name[7] = 0x86;
3315                 nv->node_name[0] = 0x20;
3316                 nv->node_name[1] = 0x00;
3317                 nv->node_name[2] = 0x00;
3318                 nv->node_name[3] = 0xe0;
3319                 nv->node_name[4] = 0x8b;
3320                 nv->node_name[5] = 0x1c;
3321                 nv->node_name[6] = 0x55;
3322                 nv->node_name[7] = 0x86;
3323                 nv->login_retry_count = __constant_cpu_to_le16(8);
3324                 nv->link_down_timeout = __constant_cpu_to_le16(200);
3325                 nv->interrupt_delay_timer = __constant_cpu_to_le16(0);
3326                 nv->login_timeout = __constant_cpu_to_le16(0);
3327                 nv->firmware_options_1 =
3328                     __constant_cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1);
3329                 nv->firmware_options_2 = __constant_cpu_to_le32(2 << 4);
3330                 nv->firmware_options_2 |= __constant_cpu_to_le32(BIT_12);
3331                 nv->firmware_options_3 = __constant_cpu_to_le32(2 << 13);
3332                 nv->host_p = __constant_cpu_to_le32(BIT_11|BIT_10);
3333                 nv->efi_parameters = __constant_cpu_to_le32(0);
3334                 nv->reset_delay = 5;
3335                 nv->max_luns_per_target = __constant_cpu_to_le16(128);
3336                 nv->port_down_retry_count = __constant_cpu_to_le16(30);
3337                 nv->link_down_timeout = __constant_cpu_to_le16(30);
3338
3339                 rval = 1;
3340         }
3341
3342         /* Reset Initialization control block */
3343         memset(icb, 0, sizeof(struct init_cb_24xx));
3344
3345         /* Copy 1st segment. */
3346         dptr1 = (uint8_t *)icb;
3347         dptr2 = (uint8_t *)&nv->version;
3348         cnt = (uint8_t *)&icb->response_q_inpointer - (uint8_t *)&icb->version;
3349         while (cnt--)
3350                 *dptr1++ = *dptr2++;
3351
3352         icb->login_retry_count = nv->login_retry_count;
3353         icb->link_down_timeout = nv->link_down_timeout;
3354
3355         /* Copy 2nd segment. */
3356         dptr1 = (uint8_t *)&icb->interrupt_delay_timer;
3357         dptr2 = (uint8_t *)&nv->interrupt_delay_timer;
3358         cnt = (uint8_t *)&icb->reserved_3 -
3359             (uint8_t *)&icb->interrupt_delay_timer;
3360         while (cnt--)
3361                 *dptr1++ = *dptr2++;
3362
3363         /*
3364          * Setup driver NVRAM options.
3365          */
3366         if (memcmp(nv->model_name, BINZERO, sizeof(nv->model_name)) != 0) {
3367                 char *st, *en;
3368                 uint16_t index;
3369
3370                 strncpy(ha->model_number, nv->model_name,
3371                     sizeof(nv->model_name));
3372                 st = en = ha->model_number;
3373                 en += sizeof(nv->model_name) - 1;
3374                 while (en > st) {
3375                         if (*en != 0x20 && *en != 0x00)
3376                                 break;
3377                         *en-- = '\0';
3378                 }
3379
3380                 index = (ha->pdev->subsystem_device & 0xff);
3381                 if (index < QLA_MODEL_NAMES)
3382                         ha->model_desc = qla2x00_model_name[index * 2 + 1];
3383         } else
3384                 strcpy(ha->model_number, "QLA2462");
3385
3386         /* Prepare nodename */
3387         if ((icb->firmware_options_1 & BIT_14) == 0) {
3388                 /*
3389                  * Firmware will apply the following mask if the nodename was
3390                  * not provided.
3391                  */
3392                 memcpy(icb->node_name, icb->port_name, WWN_SIZE);
3393                 icb->node_name[0] &= 0xF0;
3394         }
3395
3396         /* Set host adapter parameters. */
3397         ha->flags.disable_risc_code_load = 0;
3398         ha->flags.enable_lip_reset = 1;
3399         ha->flags.enable_lip_full_login = 1;
3400         ha->flags.enable_target_reset = 1;
3401         ha->flags.enable_led_scheme = 0;
3402
3403         ha->operating_mode =
3404             (icb->firmware_options_2 & (BIT_6 | BIT_5 | BIT_4)) >> 4;
3405
3406         memcpy(ha->fw_seriallink_options24, nv->seriallink_options,
3407             sizeof(ha->fw_seriallink_options24));
3408
3409         /* save HBA serial number */
3410         ha->serial0 = icb->port_name[5];
3411         ha->serial1 = icb->port_name[6];
3412         ha->serial2 = icb->port_name[7];
3413         ha->node_name = icb->node_name;
3414         ha->port_name = icb->port_name;
3415
3416         icb->execution_throttle = __constant_cpu_to_le16(0xFFFF);
3417
3418         ha->retry_count = le16_to_cpu(nv->login_retry_count);
3419
3420         /* Set minimum login_timeout to 4 seconds. */
3421         if (le16_to_cpu(nv->login_timeout) < ql2xlogintimeout)
3422                 nv->login_timeout = cpu_to_le16(ql2xlogintimeout);
3423         if (le16_to_cpu(nv->login_timeout) < 4)
3424                 nv->login_timeout = __constant_cpu_to_le16(4);
3425         ha->login_timeout = le16_to_cpu(nv->login_timeout);
3426         icb->login_timeout = cpu_to_le16(nv->login_timeout);
3427
3428         /* Set minimum RATOV to 200 tenths of a second. */
3429         ha->r_a_tov = 200;
3430
3431         ha->loop_reset_delay = nv->reset_delay;
3432
3433         /* Link Down Timeout = 0:
3434          *
3435          *      When Port Down timer expires we will start returning
3436          *      I/O's to OS with "DID_NO_CONNECT".
3437          *
3438          * Link Down Timeout != 0:
3439          *
3440          *       The driver waits for the link to come up after link down
3441          *       before returning I/Os to OS with "DID_NO_CONNECT".
3442          */
3443         if (le16_to_cpu(nv->link_down_timeout) == 0) {
3444                 ha->loop_down_abort_time =
3445                     (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
3446         } else {
3447                 ha->link_down_timeout = le16_to_cpu(nv->link_down_timeout);
3448                 ha->loop_down_abort_time =
3449                     (LOOP_DOWN_TIME - ha->link_down_timeout);
3450         }
3451
3452         /* Need enough time to try and get the port back. */
3453         ha->port_down_retry_count = le16_to_cpu(nv->port_down_retry_count);
3454         if (qlport_down_retry)
3455                 ha->port_down_retry_count = qlport_down_retry;
3456
3457         /* Set login_retry_count */
3458         ha->login_retry_count  = le16_to_cpu(nv->login_retry_count);
3459         if (ha->port_down_retry_count ==
3460             le16_to_cpu(nv->port_down_retry_count) &&
3461             ha->port_down_retry_count > 3)
3462                 ha->login_retry_count = ha->port_down_retry_count;
3463         else if (ha->port_down_retry_count > (int)ha->login_retry_count)
3464                 ha->login_retry_count = ha->port_down_retry_count;
3465         if (ql2xloginretrycount)
3466                 ha->login_retry_count = ql2xloginretrycount;
3467
3468         /* Enable ZIO. */
3469         if (!ha->flags.init_done) {
3470                 ha->zio_mode = le32_to_cpu(icb->firmware_options_2) &
3471                     (BIT_3 | BIT_2 | BIT_1 | BIT_0);
3472                 ha->zio_timer = le16_to_cpu(icb->interrupt_delay_timer) ?
3473                     le16_to_cpu(icb->interrupt_delay_timer): 2;
3474         }
3475         icb->firmware_options_2 &= __constant_cpu_to_le32(
3476             ~(BIT_3 | BIT_2 | BIT_1 | BIT_0));
3477         ha->flags.process_response_queue = 0;
3478         if (ha->zio_mode != QLA_ZIO_DISABLED) {
3479                 ha->zio_mode = QLA_ZIO_MODE_6;
3480
3481                 DEBUG2(printk("scsi(%ld): ZIO mode %d enabled; timer delay "
3482                     "(%d us).\n", ha->host_no, ha->zio_mode,
3483                     ha->zio_timer * 100));
3484                 qla_printk(KERN_INFO, ha,
3485                     "ZIO mode %d enabled; timer delay (%d us).\n",
3486                     ha->zio_mode, ha->zio_timer * 100);
3487
3488                 icb->firmware_options_2 |= cpu_to_le32(
3489                     (uint32_t)ha->zio_mode);
3490                 icb->interrupt_delay_timer = cpu_to_le16(ha->zio_timer);
3491                 ha->flags.process_response_queue = 1;
3492         }
3493
3494         if (rval) {
3495                 DEBUG2_3(printk(KERN_WARNING
3496                     "scsi(%ld): NVRAM configuration failed!\n", ha->host_no));
3497         }
3498         return (rval);
3499 }
3500
3501 #if defined(CONFIG_SCSI_QLA2XXX_EMBEDDED_FIRMWARE)
3502
3503 int
3504 qla2x00_load_risc(scsi_qla_host_t *ha, uint32_t *srisc_addr)
3505 {
3506         int     rval, num, i;
3507         uint32_t cnt;
3508         uint16_t *risc_code;
3509         uint32_t risc_addr, risc_size;
3510         uint16_t *req_ring;
3511         struct qla_fw_info *fw_iter;
3512
3513         rval = QLA_SUCCESS;
3514
3515         /* Load firmware sequences */
3516         fw_iter = ha->brd_info->fw_info;
3517         *srisc_addr = *ha->brd_info->fw_info->fwstart;
3518         while (fw_iter->addressing != FW_INFO_ADDR_NOMORE) {
3519                 risc_code = fw_iter->fwcode;
3520                 risc_size = *fw_iter->fwlen;
3521                 if (fw_iter->addressing == FW_INFO_ADDR_NORMAL)
3522                         risc_addr = *fw_iter->fwstart;
3523                 else
3524                         risc_addr = *fw_iter->lfwstart;
3525
3526                 num = 0;
3527                 rval = 0;
3528                 while (risc_size > 0 && !rval) {
3529                         cnt = (uint16_t)(ha->fw_transfer_size >> 1);
3530                         if (cnt > risc_size)
3531                                 cnt = risc_size;
3532
3533                         DEBUG7(printk("scsi(%ld): Loading risc segment@ "
3534                             "addr %p, number of bytes 0x%x, offset 0x%lx.\n",
3535                             ha->host_no, risc_code, cnt, risc_addr));
3536
3537                         req_ring = (uint16_t *)ha->request_ring;
3538                         for (i = 0; i < cnt; i++)
3539                                 req_ring[i] = cpu_to_le16(risc_code[i]);
3540
3541                         rval = qla2x00_load_ram(ha, ha->request_dma, risc_addr,
3542                             cnt);
3543                         if (rval) {
3544                                 DEBUG(printk("scsi(%ld): [ERROR] Failed to "
3545                                     "load segment %d of firmware\n",
3546                                     ha->host_no, num));
3547                                 qla_printk(KERN_WARNING, ha,
3548                                     "[ERROR] Failed to load segment %d of "
3549                                     "firmware\n", num);
3550
3551                                 qla2x00_dump_regs(ha);
3552                                 break;
3553                         }
3554
3555                         risc_code += cnt;
3556                         risc_addr += cnt;
3557                         risc_size -= cnt;
3558                         num++;
3559                 }
3560
3561                 /* Next firmware sequence */
3562                 fw_iter++;
3563         }
3564         return rval;
3565 }
3566
3567 int
3568 qla24xx_load_risc(scsi_qla_host_t *ha, uint32_t *srisc_addr)
3569 {
3570         int     rval, num, i;
3571         uint32_t cnt;
3572         uint32_t *risc_code;
3573         uint32_t risc_addr, risc_size;
3574         uint32_t *req_ring;
3575         struct qla_fw_info *fw_iter;
3576
3577         rval = QLA_SUCCESS;
3578
3579         /* Load firmware sequences */
3580         fw_iter = ha->brd_info->fw_info;
3581         *srisc_addr = *((uint32_t *)fw_iter->lfwstart);
3582         while (fw_iter->addressing != FW_INFO_ADDR_NOMORE) {
3583                 risc_code = (uint32_t *)fw_iter->fwcode;
3584                 risc_size = *((uint32_t *)fw_iter->fwlen);
3585                 risc_addr = *((uint32_t *)fw_iter->lfwstart);
3586
3587                 num = 0;
3588                 rval = 0;
3589                 while (risc_size > 0 && !rval) {
3590                         cnt = (uint32_t)(ha->fw_transfer_size >> 2);
3591                         if (cnt > risc_size)
3592                                 cnt = risc_size;
3593
3594                         DEBUG7(printk("scsi(%ld): Loading risc segment@ "
3595                             "addr %p, number of bytes 0x%x, offset 0x%lx.\n",
3596                             ha->host_no, risc_code, cnt, risc_addr));
3597
3598                         req_ring = (uint32_t *)ha->request_ring;
3599                         for (i = 0; i < cnt; i++)
3600                                 req_ring[i] = cpu_to_le32(risc_code[i]);
3601
3602                         rval = qla2x00_load_ram(ha, ha->request_dma, risc_addr,
3603                             cnt);
3604                         if (rval) {
3605                                 DEBUG(printk("scsi(%ld): [ERROR] Failed to "
3606                                     "load segment %d of firmware\n",
3607                                     ha->host_no, num));
3608                                 qla_printk(KERN_WARNING, ha,
3609                                     "[ERROR] Failed to load segment %d of "
3610                                     "firmware\n", num);
3611
3612                                 qla2x00_dump_regs(ha);
3613                                 break;
3614                         }
3615
3616                         risc_code += cnt;
3617                         risc_addr += cnt;
3618                         risc_size -= cnt;
3619                         num++;
3620                 }
3621
3622                 /* Next firmware sequence */
3623                 fw_iter++;
3624         }
3625         return rval;
3626 }
3627
3628 int
3629 qla24xx_load_risc_flash(scsi_qla_host_t *ha, uint32_t *srisc_addr)
3630 {
3631         int     rval;
3632         int     segments, fragment;
3633         uint32_t faddr;
3634         uint32_t *dcode, dlen;
3635         uint32_t risc_addr;
3636         uint32_t risc_size;
3637         uint32_t i;
3638
3639         rval = QLA_SUCCESS;
3640
3641         segments = FA_RISC_CODE_SEGMENTS;
3642         faddr = FA_RISC_CODE_ADDR;
3643         dcode = (uint32_t *)ha->request_ring;
3644         *srisc_addr = 0;
3645
3646         /* Validate firmware image by checking version. */
3647         qla24xx_read_flash_data(ha, dcode, faddr + 4, 4);
3648         for (i = 0; i < 4; i++)
3649                 dcode[i] = be32_to_cpu(dcode[i]);
3650         if ((dcode[0] == 0xffffffff && dcode[1] == 0xffffffff &&
3651             dcode[2] == 0xffffffff && dcode[3] == 0xffffffff) ||
3652             (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
3653                 dcode[3] == 0)) {
3654                 qla_printk(KERN_WARNING, ha,
3655                     "Unable to verify integrity of flash firmware image!\n");
3656                 qla_printk(KERN_WARNING, ha,
3657                     "Firmware data: %08x %08x %08x %08x!\n", dcode[0],
3658                     dcode[1], dcode[2], dcode[3]);
3659
3660                 return QLA_FUNCTION_FAILED;
3661         }
3662
3663         while (segments && rval == QLA_SUCCESS) {
3664                 /* Read segment's load information. */
3665                 qla24xx_read_flash_data(ha, dcode, faddr, 4);
3666
3667                 risc_addr = be32_to_cpu(dcode[2]);
3668                 *srisc_addr = *srisc_addr == 0 ? risc_addr : *srisc_addr;
3669                 risc_size = be32_to_cpu(dcode[3]);
3670
3671                 fragment = 0;
3672                 while (risc_size > 0 && rval == QLA_SUCCESS) {
3673                         dlen = (uint32_t)(ha->fw_transfer_size >> 2);
3674                         if (dlen > risc_size)
3675                                 dlen = risc_size;
3676
3677                         DEBUG7(printk("scsi(%ld): Loading risc segment@ risc "
3678                             "addr %x, number of dwords 0x%x, offset 0x%x.\n",
3679                             ha->host_no, risc_addr, dlen, faddr));
3680
3681                         qla24xx_read_flash_data(ha, dcode, faddr, dlen);
3682                         for (i = 0; i < dlen; i++)
3683                                 dcode[i] = swab32(dcode[i]);
3684
3685                         rval = qla2x00_load_ram(ha, ha->request_dma, risc_addr,
3686                             dlen);
3687                         if (rval) {
3688                                 DEBUG(printk("scsi(%ld):[ERROR] Failed to load "
3689                                     "segment %d of firmware\n", ha->host_no,
3690                                     fragment));
3691                                 qla_printk(KERN_WARNING, ha,
3692                                     "[ERROR] Failed to load segment %d of "
3693                                     "firmware\n", fragment);
3694                                 break;
3695                         }
3696
3697                         faddr += dlen;
3698                         risc_addr += dlen;
3699                         risc_size -= dlen;
3700                         fragment++;
3701                 }
3702
3703                 /* Next segment. */
3704                 segments--;
3705         }
3706
3707         return rval;
3708 }
3709
3710 #else   /* !defined(CONFIG_SCSI_QLA2XXX_EMBEDDED_FIRMWARE) */
3711
3712 int
3713 qla2x00_load_risc(scsi_qla_host_t *ha, uint32_t *srisc_addr)
3714 {
3715         int     rval;
3716         int     i, fragment;
3717         uint16_t *wcode, *fwcode;
3718         uint32_t risc_addr, risc_size, fwclen, wlen, *seg;
3719         struct fw_blob *blob;
3720
3721         /* Load firmware blob. */
3722         blob = qla2x00_request_firmware(ha);
3723         if (!blob) {
3724                 qla_printk(KERN_ERR, ha, "Firmware image unavailable.\n");
3725                 return QLA_FUNCTION_FAILED;
3726         }
3727
3728         rval = QLA_SUCCESS;
3729
3730         wcode = (uint16_t *)ha->request_ring;
3731         *srisc_addr = 0;
3732         fwcode = (uint16_t *)blob->fw->data;
3733         fwclen = 0;
3734
3735         /* Validate firmware image by checking version. */
3736         if (blob->fw->size < 8 * sizeof(uint16_t)) {
3737                 qla_printk(KERN_WARNING, ha,
3738                     "Unable to verify integrity of firmware image (%Zd)!\n",
3739                     blob->fw->size);
3740                 goto fail_fw_integrity;
3741         }
3742         for (i = 0; i < 4; i++)
3743                 wcode[i] = be16_to_cpu(fwcode[i + 4]);
3744         if ((wcode[0] == 0xffff && wcode[1] == 0xffff && wcode[2] == 0xffff &&
3745             wcode[3] == 0xffff) || (wcode[0] == 0 && wcode[1] == 0 &&
3746                 wcode[2] == 0 && wcode[3] == 0)) {
3747                 qla_printk(KERN_WARNING, ha,
3748                     "Unable to verify integrity of firmware image!\n");
3749                 qla_printk(KERN_WARNING, ha,
3750                     "Firmware data: %04x %04x %04x %04x!\n", wcode[0],
3751                     wcode[1], wcode[2], wcode[3]);
3752                 goto fail_fw_integrity;
3753         }
3754
3755         seg = blob->segs;
3756         while (*seg && rval == QLA_SUCCESS) {
3757                 risc_addr = *seg;
3758                 *srisc_addr = *srisc_addr == 0 ? *seg : *srisc_addr;
3759                 risc_size = be16_to_cpu(fwcode[3]);
3760
3761                 /* Validate firmware image size. */
3762                 fwclen += risc_size * sizeof(uint16_t);
3763                 if (blob->fw->size < fwclen) {
3764                         qla_printk(KERN_WARNING, ha,
3765                             "Unable to verify integrity of firmware image "
3766                             "(%Zd)!\n", blob->fw->size);
3767                         goto fail_fw_integrity;
3768                 }
3769
3770                 fragment = 0;
3771                 while (risc_size > 0 && rval == QLA_SUCCESS) {
3772                         wlen = (uint16_t)(ha->fw_transfer_size >> 1);
3773                         if (wlen > risc_size)
3774                                 wlen = risc_size;
3775
3776                         DEBUG7(printk("scsi(%ld): Loading risc segment@ risc "
3777                             "addr %x, number of words 0x%x.\n", ha->host_no,
3778                             risc_addr, wlen));
3779
3780                         for (i = 0; i < wlen; i++)
3781                                 wcode[i] = swab16(fwcode[i]);
3782
3783                         rval = qla2x00_load_ram(ha, ha->request_dma, risc_addr,
3784                             wlen);
3785                         if (rval) {
3786                                 DEBUG(printk("scsi(%ld):[ERROR] Failed to load "
3787                                     "segment %d of firmware\n", ha->host_no,
3788                                     fragment));
3789                                 qla_printk(KERN_WARNING, ha,
3790                                     "[ERROR] Failed to load segment %d of "
3791                                     "firmware\n", fragment);
3792                                 break;
3793                         }
3794
3795                         fwcode += wlen;
3796                         risc_addr += wlen;
3797                         risc_size -= wlen;
3798                         fragment++;
3799                 }
3800
3801                 /* Next segment. */
3802                 seg++;
3803         }
3804         return rval;
3805
3806 fail_fw_integrity:
3807         return QLA_FUNCTION_FAILED;
3808 }
3809
3810 int
3811 qla24xx_load_risc(scsi_qla_host_t *ha, uint32_t *srisc_addr)
3812 {
3813         int     rval;
3814         int     segments, fragment;
3815         uint32_t *dcode, dlen;
3816         uint32_t risc_addr;
3817         uint32_t risc_size;
3818         uint32_t i;
3819         struct fw_blob *blob;
3820         uint32_t *fwcode, fwclen;
3821
3822         /* Load firmware blob. */
3823         blob = qla2x00_request_firmware(ha);
3824         if (!blob) {
3825                 qla_printk(KERN_ERR, ha, "Firmware image unavailable.\n");
3826                 return QLA_FUNCTION_FAILED;
3827         }
3828
3829         rval = QLA_SUCCESS;
3830
3831         segments = FA_RISC_CODE_SEGMENTS;
3832         dcode = (uint32_t *)ha->request_ring;
3833         *srisc_addr = 0;
3834         fwcode = (uint32_t *)blob->fw->data;
3835         fwclen = 0;
3836
3837         /* Validate firmware image by checking version. */
3838         if (blob->fw->size < 8 * sizeof(uint32_t)) {
3839                 qla_printk(KERN_WARNING, ha,
3840                     "Unable to verify integrity of firmware image (%Zd)!\n",
3841                     blob->fw->size);
3842                 goto fail_fw_integrity;
3843         }
3844         for (i = 0; i < 4; i++)
3845                 dcode[i] = be32_to_cpu(fwcode[i + 4]);
3846         if ((dcode[0] == 0xffffffff && dcode[1] == 0xffffffff &&
3847             dcode[2] == 0xffffffff && dcode[3] == 0xffffffff) ||
3848             (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
3849                 dcode[3] == 0)) {
3850                 qla_printk(KERN_WARNING, ha,
3851                     "Unable to verify integrity of firmware image!\n");
3852                 qla_printk(KERN_WARNING, ha,
3853                     "Firmware data: %08x %08x %08x %08x!\n", dcode[0],
3854                     dcode[1], dcode[2], dcode[3]);
3855                 goto fail_fw_integrity;
3856         }
3857
3858         while (segments && rval == QLA_SUCCESS) {
3859                 risc_addr = be32_to_cpu(fwcode[2]);
3860                 *srisc_addr = *srisc_addr == 0 ? risc_addr : *srisc_addr;
3861                 risc_size = be32_to_cpu(fwcode[3]);
3862
3863                 /* Validate firmware image size. */
3864                 fwclen += risc_size * sizeof(uint32_t);
3865                 if (blob->fw->size < fwclen) {
3866                         qla_printk(KERN_WARNING, ha,
3867                             "Unable to verify integrity of firmware image "
3868                             "(%Zd)!\n", blob->fw->size);
3869
3870                         goto fail_fw_integrity;
3871                 }
3872
3873                 fragment = 0;
3874                 while (risc_size > 0 && rval == QLA_SUCCESS) {
3875                         dlen = (uint32_t)(ha->fw_transfer_size >> 2);
3876                         if (dlen > risc_size)
3877                                 dlen = risc_size;
3878
3879                         DEBUG7(printk("scsi(%ld): Loading risc segment@ risc "
3880                             "addr %x, number of dwords 0x%x.\n", ha->host_no,
3881                             risc_addr, dlen));
3882
3883                         for (i = 0; i < dlen; i++)
3884                                 dcode[i] = swab32(fwcode[i]);
3885
3886                         rval = qla2x00_load_ram(ha, ha->request_dma, risc_addr,
3887                             dlen);
3888                         if (rval) {
3889                                 DEBUG(printk("scsi(%ld):[ERROR] Failed to load "
3890                                     "segment %d of firmware\n", ha->host_no,
3891                                     fragment));
3892                                 qla_printk(KERN_WARNING, ha,
3893                                     "[ERROR] Failed to load segment %d of "
3894                                     "firmware\n", fragment);
3895                                 break;
3896                         }
3897
3898                         fwcode += dlen;
3899                         risc_addr += dlen;
3900                         risc_size -= dlen;
3901                         fragment++;
3902                 }
3903
3904                 /* Next segment. */
3905                 segments--;
3906         }
3907         return rval;
3908
3909 fail_fw_integrity:
3910         return QLA_FUNCTION_FAILED;
3911 }
3912 #endif