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 #include <linux/firmware.h>
  12 #include <scsi/scsi_transport_fc.h>
  13
  14 #include "qla_devtbl.h"
  15
  16 /* XXX(hch): this is ugly, but we don't want to pull in exioctl.h */
  17 #ifndef EXT_IS_LUN_BIT_SET
  18 #define EXT_IS_LUN_BIT_SET(P,L) \
  19     (((P)->mask[L/8] & (0x80 >> (L%8)))?1:0)
  20 #define EXT_SET_LUN_BIT(P,L) \
  21     ((P)->mask[L/8] |= (0x80 >> (L%8)))
  22 #endif
  23
  24 /*
  25 *  QLogic ISP2x00 Hardware Support Function Prototypes.
  26 */
  27 static int qla2x00_isp_firmware(scsi_qla_host_t *);
  28 static void qla2x00_resize_request_q(scsi_qla_host_t *);
  29 static int qla2x00_setup_chip(scsi_qla_host_t *);
  30 static void qla2x00_init_response_q_entries(scsi_qla_host_t *);
  31 static int qla2x00_init_rings(scsi_qla_host_t *);
  32 static int qla2x00_fw_ready(scsi_qla_host_t *);
  33 static int qla2x00_configure_hba(scsi_qla_host_t *);
  34 static int qla2x00_configure_loop(scsi_qla_host_t *);
  35 static int qla2x00_configure_local_loop(scsi_qla_host_t *);
  36 static void qla2x00_update_fcport(scsi_qla_host_t *, fc_port_t *);
  37 static int qla2x00_configure_fabric(scsi_qla_host_t *);
  38 static int qla2x00_find_all_fabric_devs(scsi_qla_host_t *, struct list_head *);
  39 static int qla2x00_device_resync(scsi_qla_host_t *);
  40 static int qla2x00_fabric_dev_login(scsi_qla_host_t *, fc_port_t *,
  41     uint16_t *);
  42
  43 static int qla2x00_restart_isp(scsi_qla_host_t *);
  44
  45 /****************************************************************************/
  46 /*                QLogic ISP2x00 Hardware Support Functions.                */
  47 /****************************************************************************/
  48
  49 /*
  50 * qla2x00_initialize_adapter
  51 *      Initialize board.
  52 *
  53 * Input:
  54 *      ha = adapter block pointer.
  55 *
  56 * Returns:
  57 *      0 = success
  58 */
  59 int
  60 qla2x00_initialize_adapter(scsi_qla_host_t *ha)
  61 {
  62         int     rval;
  63         uint8_t restart_risc = 0;
  64         uint8_t retry;
  65         uint32_t wait_time;
  66
  67         /* Clear adapter flags. */
  68         ha->flags.online = 0;
  69         ha->flags.reset_active = 0;
  70         atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
  71         atomic_set(&ha->loop_state, LOOP_DOWN);
  72         ha->device_flags = 0;
  73         ha->dpc_flags = 0;
  74         ha->flags.management_server_logged_in = 0;
  75         ha->marker_needed = 0;
  76         ha->mbx_flags = 0;
  77         ha->isp_abort_cnt = 0;
  78         ha->beacon_blink_led = 0;
  79         set_bit(REGISTER_FDMI_NEEDED, &ha->dpc_flags);
  80
  81         qla_printk(KERN_INFO, ha, "Configuring PCI space...\n");
  82         rval = ha->isp_ops.pci_config(ha);
  83         if (rval) {
  84                 DEBUG2(printk("scsi(%ld): Unable to configure PCI space=n",
  85                     ha->host_no));
  86                 return (rval);
  87         }
  88
  89         ha->isp_ops.reset_chip(ha);
  90
  91         qla_printk(KERN_INFO, ha, "Configure NVRAM parameters...\n");
  92
  93         ha->isp_ops.nvram_config(ha);
  94
  95         qla_printk(KERN_INFO, ha, "Verifying loaded RISC code...\n");
  96
  97         retry = 10;
  98         /*
  99          * Try to configure the loop.
 100          */
 101         do {
 102                 restart_risc = 0;
 103
 104                 /* If firmware needs to be loaded */
 105                 if (qla2x00_isp_firmware(ha) != QLA_SUCCESS) {
 106                         if ((rval = ha->isp_ops.chip_diag(ha)) == QLA_SUCCESS) {
 107                                 rval = qla2x00_setup_chip(ha);
 108                         }
 109                 }
 110
 111                 if (rval == QLA_SUCCESS &&
 112                     (rval = qla2x00_init_rings(ha)) == QLA_SUCCESS) {
 113 check_fw_ready_again:
 114                         /*
 115                          * Wait for a successful LIP up to a maximum
 116                          * of (in seconds): RISC login timeout value,
 117                          * RISC retry count value, and port down retry
 118                          * value OR a minimum of 4 seconds OR If no
 119                          * cable, only 5 seconds.
 120                          */
 121                         rval = qla2x00_fw_ready(ha);
 122                         if (rval == QLA_SUCCESS) {
 123                                 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
 124
 125                                 /* Issue a marker after FW becomes ready. */
 126                                 qla2x00_marker(ha, 0, 0, MK_SYNC_ALL);
 127
 128                                 /*
 129                                  * Wait at most MAX_TARGET RSCNs for a stable
 130                                  * link.
 131                                  */
 132                                 wait_time = 256;
 133                                 do {
 134                                         clear_bit(LOOP_RESYNC_NEEDED,
 135                                             &ha->dpc_flags);
 136                                         rval = qla2x00_configure_loop(ha);
 137
 138                                         if (test_and_clear_bit(ISP_ABORT_NEEDED,
 139                                             &ha->dpc_flags)) {
 140                                                 restart_risc = 1;
 141                                                 break;
 142                                         }
 143
 144                                         /*
 145                                          * If loop state change while we were
 146                                          * discoverying devices then wait for
 147                                          * LIP to complete
 148                                          */
 149
 150                                         if (atomic_read(&ha->loop_state) ==
 151                                             LOOP_DOWN && retry--) {
 152                                                 goto check_fw_ready_again;
 153                                         }
 154                                         wait_time--;
 155                                 } while (!atomic_read(&ha->loop_down_timer) &&
 156                                     retry &&
 157                                     wait_time &&
 158                                     (test_bit(LOOP_RESYNC_NEEDED,
 159                                         &ha->dpc_flags)));
 160
 161                                 if (wait_time == 0)
 162                                         rval = QLA_FUNCTION_FAILED;
 163                         } else if (ha->device_flags & DFLG_NO_CABLE)
 164                                 /* If no cable, then all is good. */
 165                                 rval = QLA_SUCCESS;
 166                 }
 167         } while (restart_risc && retry--);
 168
 169         if (rval == QLA_SUCCESS) {
 170                 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
 171                 qla2x00_marker(ha, 0, 0, MK_SYNC_ALL);
 172                 ha->marker_needed = 0;
 173
 174                 ha->flags.online = 1;
 175         } else {
 176                 DEBUG2_3(printk("%s(): **** FAILED ****\n", __func__));
 177         }
 178
 179         return (rval);
 180 }
 181
 182 /**
 183  * qla2100_pci_config() - Setup ISP21xx PCI configuration registers.
 184  * @ha: HA context
 185  *
 186  * Returns 0 on success.
 187  */
 188 int
 189 qla2100_pci_config(scsi_qla_host_t *ha)
 190 {
 191         uint16_t w, mwi;
 192         uint32_t d;
 193         unsigned long flags;
 194         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 195
 196         pci_set_master(ha->pdev);
 197         mwi = 0;
 198         if (pci_set_mwi(ha->pdev))
 199                 mwi = PCI_COMMAND_INVALIDATE;
 200         pci_read_config_word(ha->pdev, PCI_REVISION_ID, &ha->revision);
 201
 202         pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
 203         w |= mwi | (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
 204         pci_write_config_word(ha->pdev, PCI_COMMAND, w);
 205
 206         /* Reset expansion ROM address decode enable */
 207         pci_read_config_dword(ha->pdev, PCI_ROM_ADDRESS, &d);
 208         d &= ~PCI_ROM_ADDRESS_ENABLE;
 209         pci_write_config_dword(ha->pdev, PCI_ROM_ADDRESS, d);
 210
 211         /* Get PCI bus information. */
 212         spin_lock_irqsave(&ha->hardware_lock, flags);
 213         ha->pci_attr = RD_REG_WORD(&reg->ctrl_status);
 214         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 215
 216         return QLA_SUCCESS;
 217 }
 218
 219 /**
 220  * qla2300_pci_config() - Setup ISP23xx PCI configuration registers.
 221  * @ha: HA context
 222  *
 223  * Returns 0 on success.
 224  */
 225 int
 226 qla2300_pci_config(scsi_qla_host_t *ha)
 227 {
 228         uint16_t        w, mwi;
 229         uint32_t        d;
 230         unsigned long   flags = 0;
 231         uint32_t        cnt;
 232         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 233
 234         pci_set_master(ha->pdev);
 235         mwi = 0;
 236         if (pci_set_mwi(ha->pdev))
 237                 mwi = PCI_COMMAND_INVALIDATE;
 238         pci_read_config_word(ha->pdev, PCI_REVISION_ID, &ha->revision);
 239
 240         pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
 241         w |= mwi | (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
 242
 243         if (IS_QLA2322(ha) || IS_QLA6322(ha))
 244                 w &= ~PCI_COMMAND_INTX_DISABLE;
 245
 246         /*
 247          * If this is a 2300 card and not 2312, reset the
 248          * COMMAND_INVALIDATE due to a bug in the 2300. Unfortunately,
 249          * the 2310 also reports itself as a 2300 so we need to get the
 250          * fb revision level -- a 6 indicates it really is a 2300 and
 251          * not a 2310.
 252          */
 253         if (IS_QLA2300(ha)) {
 254                 spin_lock_irqsave(&ha->hardware_lock, flags);
 255
 256                 /* Pause RISC. */
 257                 WRT_REG_WORD(&reg->hccr, HCCR_PAUSE_RISC);
 258                 for (cnt = 0; cnt < 30000; cnt++) {
 259                         if ((RD_REG_WORD(&reg->hccr) & HCCR_RISC_PAUSE) != 0)
 260                                 break;
 261
 262                         udelay(10);
 263                 }
 264
 265                 /* Select FPM registers. */
 266                 WRT_REG_WORD(&reg->ctrl_status, 0x20);
 267                 RD_REG_WORD(&reg->ctrl_status);
 268
 269                 /* Get the fb rev level */
 270                 ha->fb_rev = RD_FB_CMD_REG(ha, reg);
 271
 272                 if (ha->fb_rev == FPM_2300)
 273                         w &= ~PCI_COMMAND_INVALIDATE;
 274
 275                 /* Deselect FPM registers. */
 276                 WRT_REG_WORD(&reg->ctrl_status, 0x0);
 277                 RD_REG_WORD(&reg->ctrl_status);
 278
 279                 /* Release RISC module. */
 280                 WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
 281                 for (cnt = 0; cnt < 30000; cnt++) {
 282                         if ((RD_REG_WORD(&reg->hccr) & HCCR_RISC_PAUSE) == 0)
 283                                 break;
 284
 285                         udelay(10);
 286                 }
 287
 288                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 289         }
 290         pci_write_config_word(ha->pdev, PCI_COMMAND, w);
 291
 292         pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);
 293
 294         /* Reset expansion ROM address decode enable */
 295         pci_read_config_dword(ha->pdev, PCI_ROM_ADDRESS, &d);
 296         d &= ~PCI_ROM_ADDRESS_ENABLE;
 297         pci_write_config_dword(ha->pdev, PCI_ROM_ADDRESS, d);
 298
 299         /* Get PCI bus information. */
 300         spin_lock_irqsave(&ha->hardware_lock, flags);
 301         ha->pci_attr = RD_REG_WORD(&reg->ctrl_status);
 302         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 303
 304         return QLA_SUCCESS;
 305 }
 306
 307 /**
 308  * qla24xx_pci_config() - Setup ISP24xx PCI configuration registers.
 309  * @ha: HA context
 310  *
 311  * Returns 0 on success.
 312  */
 313 int
 314 qla24xx_pci_config(scsi_qla_host_t *ha)
 315 {
 316         uint16_t w, mwi;
 317         uint32_t d;
 318         unsigned long flags = 0;
 319         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
 320         int pcix_cmd_reg, pcie_dctl_reg;
 321
 322         pci_set_master(ha->pdev);
 323         mwi = 0;
 324         if (pci_set_mwi(ha->pdev))
 325                 mwi = PCI_COMMAND_INVALIDATE;
 326         pci_read_config_word(ha->pdev, PCI_REVISION_ID, &ha->revision);
 327
 328         pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
 329         w |= mwi | (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
 330         w &= ~PCI_COMMAND_INTX_DISABLE;
 331         pci_write_config_word(ha->pdev, PCI_COMMAND, w);
 332
 333         pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);
 334
 335         /* PCI-X -- adjust Maximum Memory Read Byte Count (2048). */
 336         pcix_cmd_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_PCIX);
 337         if (pcix_cmd_reg) {
 338                 uint16_t pcix_cmd;
 339
 340                 pcix_cmd_reg += PCI_X_CMD;
 341                 pci_read_config_word(ha->pdev, pcix_cmd_reg, &pcix_cmd);
 342                 pcix_cmd &= ~PCI_X_CMD_MAX_READ;
 343                 pcix_cmd |= 0x0008;
 344                 pci_write_config_word(ha->pdev, pcix_cmd_reg, pcix_cmd);
 345         }
 346
 347         /* PCIe -- adjust Maximum Read Request Size (2048). */
 348         pcie_dctl_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
 349         if (pcie_dctl_reg) {
 350                 uint16_t pcie_dctl;
 351
 352                 pcie_dctl_reg += PCI_EXP_DEVCTL;
 353                 pci_read_config_word(ha->pdev, pcie_dctl_reg, &pcie_dctl);
 354                 pcie_dctl &= ~PCI_EXP_DEVCTL_READRQ;
 355                 pcie_dctl |= 0x4000;
 356                 pci_write_config_word(ha->pdev, pcie_dctl_reg, pcie_dctl);
 357         }
 358
 359         /* Reset expansion ROM address decode enable */
 360         pci_read_config_dword(ha->pdev, PCI_ROM_ADDRESS, &d);
 361         d &= ~PCI_ROM_ADDRESS_ENABLE;
 362         pci_write_config_dword(ha->pdev, PCI_ROM_ADDRESS, d);
 363
 364         /* Get PCI bus information. */
 365         spin_lock_irqsave(&ha->hardware_lock, flags);
 366         ha->pci_attr = RD_REG_DWORD(&reg->ctrl_status);
 367         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 368
 369         return QLA_SUCCESS;
 370 }
 371
 372 /**
 373  * qla2x00_isp_firmware() - Choose firmware image.
 374  * @ha: HA context
 375  *
 376  * Returns 0 on success.
 377  */
 378 static int
 379 qla2x00_isp_firmware(scsi_qla_host_t *ha)
 380 {
 381         int  rval;
 382
 383         /* Assume loading risc code */
 384         rval = QLA_FUNCTION_FAILED;
 385
 386         if (ha->flags.disable_risc_code_load) {
 387                 DEBUG2(printk("scsi(%ld): RISC CODE NOT loaded\n",
 388                     ha->host_no));
 389                 qla_printk(KERN_INFO, ha, "RISC CODE NOT loaded\n");
 390
 391                 /* Verify checksum of loaded RISC code. */
 392                 rval = qla2x00_verify_checksum(ha,
 393                     IS_QLA24XX(ha) || IS_QLA25XX(ha) ? RISC_SADDRESS :
 394                     *ha->brd_info->fw_info[0].fwstart);
 395         }
 396
 397         if (rval) {
 398                 DEBUG2_3(printk("scsi(%ld): **** Load RISC code ****\n",
 399                     ha->host_no));
 400         }
 401
 402         return (rval);
 403 }
 404
 405 /**
 406  * qla2x00_reset_chip() - Reset ISP chip.
 407  * @ha: HA context
 408  *
 409  * Returns 0 on success.
 410  */
 411 void
 412 qla2x00_reset_chip(scsi_qla_host_t *ha)
 413 {
 414         unsigned long   flags = 0;
 415         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 416         uint32_t        cnt;
 417         unsigned long   mbx_flags = 0;
 418         uint16_t        cmd;
 419
 420         ha->isp_ops.disable_intrs(ha);
 421
 422         spin_lock_irqsave(&ha->hardware_lock, flags);
 423
 424         /* Turn off master enable */
 425         cmd = 0;
 426         pci_read_config_word(ha->pdev, PCI_COMMAND, &cmd);
 427         cmd &= ~PCI_COMMAND_MASTER;
 428         pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
 429
 430         if (!IS_QLA2100(ha)) {
 431                 /* Pause RISC. */
 432                 WRT_REG_WORD(&reg->hccr, HCCR_PAUSE_RISC);
 433                 if (IS_QLA2200(ha) || IS_QLA2300(ha)) {
 434                         for (cnt = 0; cnt < 30000; cnt++) {
 435                                 if ((RD_REG_WORD(&reg->hccr) &
 436                                     HCCR_RISC_PAUSE) != 0)
 437                                         break;
 438                                 udelay(100);
 439                         }
 440                 } else {
 441                         RD_REG_WORD(&reg->hccr);        /* PCI Posting. */
 442                         udelay(10);
 443                 }
 444
 445                 /* Select FPM registers. */
 446                 WRT_REG_WORD(&reg->ctrl_status, 0x20);
 447                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
 448
 449                 /* FPM Soft Reset. */
 450                 WRT_REG_WORD(&reg->fpm_diag_config, 0x100);
 451                 RD_REG_WORD(&reg->fpm_diag_config);     /* PCI Posting. */
 452
 453                 /* Toggle Fpm Reset. */
 454                 if (!IS_QLA2200(ha)) {
 455                         WRT_REG_WORD(&reg->fpm_diag_config, 0x0);
 456                         RD_REG_WORD(&reg->fpm_diag_config); /* PCI Posting. */
 457                 }
 458
 459                 /* Select frame buffer registers. */
 460                 WRT_REG_WORD(&reg->ctrl_status, 0x10);
 461                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
 462
 463                 /* Reset frame buffer FIFOs. */
 464                 if (IS_QLA2200(ha)) {
 465                         WRT_FB_CMD_REG(ha, reg, 0xa000);
 466                         RD_FB_CMD_REG(ha, reg);         /* PCI Posting. */
 467                 } else {
 468                         WRT_FB_CMD_REG(ha, reg, 0x00fc);
 469
 470                         /* Read back fb_cmd until zero or 3 seconds max */
 471                         for (cnt = 0; cnt < 3000; cnt++) {
 472                                 if ((RD_FB_CMD_REG(ha, reg) & 0xff) == 0)
 473                                         break;
 474                                 udelay(100);
 475                         }
 476                 }
 477
 478                 /* Select RISC module registers. */
 479                 WRT_REG_WORD(&reg->ctrl_status, 0);
 480                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
 481
 482                 /* Reset RISC processor. */
 483                 WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
 484                 RD_REG_WORD(&reg->hccr);                /* PCI Posting. */
 485
 486                 /* Release RISC processor. */
 487                 WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
 488                 RD_REG_WORD(&reg->hccr);                /* PCI Posting. */
 489         }
 490
 491         WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
 492         WRT_REG_WORD(&reg->hccr, HCCR_CLR_HOST_INT);
 493
 494         /* Reset ISP chip. */
 495         WRT_REG_WORD(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
 496
 497         /* Wait for RISC to recover from reset. */
 498         if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
 499                 /*
 500                  * It is necessary to for a delay here since the card doesn't
 501                  * respond to PCI reads during a reset. On some architectures
 502                  * this will result in an MCA.
 503                  */
 504                 udelay(20);
 505                 for (cnt = 30000; cnt; cnt--) {
 506                         if ((RD_REG_WORD(&reg->ctrl_status) &
 507                             CSR_ISP_SOFT_RESET) == 0)
 508                                 break;
 509                         udelay(100);
 510                 }
 511         } else
 512                 udelay(10);
 513
 514         /* Reset RISC processor. */
 515         WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
 516
 517         WRT_REG_WORD(&reg->semaphore, 0);
 518
 519         /* Release RISC processor. */
 520         WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
 521         RD_REG_WORD(&reg->hccr);                        /* PCI Posting. */
 522
 523         if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
 524                 for (cnt = 0; cnt < 30000; cnt++) {
 525                         if (!(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)))
 526                                 spin_lock_irqsave(&ha->mbx_reg_lock, mbx_flags);
 527
 528                         if (RD_MAILBOX_REG(ha, reg, 0) != MBS_BUSY) {
 529                                 if (!(test_bit(ABORT_ISP_ACTIVE,
 530                                     &ha->dpc_flags)))
 531                                         spin_unlock_irqrestore(
 532                                             &ha->mbx_reg_lock, mbx_flags);
 533                                 break;
 534                         }
 535
 536                         if (!(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)))
 537                                 spin_unlock_irqrestore(&ha->mbx_reg_lock,
 538                                     mbx_flags);
 539
 540                         udelay(100);
 541                 }
 542         } else
 543                 udelay(100);
 544
 545         /* Turn on master enable */
 546         cmd |= PCI_COMMAND_MASTER;
 547         pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
 548
 549         /* Disable RISC pause on FPM parity error. */
 550         if (!IS_QLA2100(ha)) {
 551                 WRT_REG_WORD(&reg->hccr, HCCR_DISABLE_PARITY_PAUSE);
 552                 RD_REG_WORD(&reg->hccr);                /* PCI Posting. */
 553         }
 554
 555         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 556 }
 557
 558 /**
 559  * qla24xx_reset_risc() - Perform full reset of ISP24xx RISC.
 560  * @ha: HA context
 561  *
 562  * Returns 0 on success.
 563  */
 564 static inline void
 565 qla24xx_reset_risc(scsi_qla_host_t *ha)
 566 {
 567         unsigned long flags = 0;
 568         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
 569         uint32_t cnt, d2;
 570
 571         spin_lock_irqsave(&ha->hardware_lock, flags);
 572
 573         /* Reset RISC. */
 574         WRT_REG_DWORD(&reg->ctrl_status, CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
 575         for (cnt = 0; cnt < 30000; cnt++) {
 576                 if ((RD_REG_DWORD(&reg->ctrl_status) & CSRX_DMA_ACTIVE) == 0)
 577                         break;
 578
 579                 udelay(10);
 580         }
 581
 582         WRT_REG_DWORD(&reg->ctrl_status,
 583             CSRX_ISP_SOFT_RESET|CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
 584         RD_REG_DWORD(&reg->ctrl_status);
 585
 586         /* Wait for firmware to complete NVRAM accesses. */
 587         udelay(5);
 588         d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
 589         for (cnt = 10000 ; cnt && d2; cnt--) {
 590                 udelay(5);
 591                 d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
 592                 barrier();
 593         }
 594
 595         udelay(20);
 596         d2 = RD_REG_DWORD(&reg->ctrl_status);
 597         for (cnt = 6000000 ; cnt && (d2 & CSRX_ISP_SOFT_RESET); cnt--) {
 598                 udelay(5);
 599                 d2 = RD_REG_DWORD(&reg->ctrl_status);
 600                 barrier();
 601         }
 602
 603         WRT_REG_DWORD(&reg->hccr, HCCRX_SET_RISC_RESET);
 604         RD_REG_DWORD(&reg->hccr);
 605
 606         WRT_REG_DWORD(&reg->hccr, HCCRX_REL_RISC_PAUSE);
 607         RD_REG_DWORD(&reg->hccr);
 608
 609         WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_RESET);
 610         RD_REG_DWORD(&reg->hccr);
 611
 612         d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
 613         for (cnt = 6000000 ; cnt && d2; cnt--) {
 614                 udelay(5);
 615                 d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
 616                 barrier();
 617         }
 618
 619         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 620 }
 621
 622 /**
 623  * qla24xx_reset_chip() - Reset ISP24xx chip.
 624  * @ha: HA context
 625  *
 626  * Returns 0 on success.
 627  */
 628 void
 629 qla24xx_reset_chip(scsi_qla_host_t *ha)
 630 {
 631         ha->isp_ops.disable_intrs(ha);
 632
 633         /* Perform RISC reset. */
 634         qla24xx_reset_risc(ha);
 635 }
 636
 637 /**
 638  * qla2x00_chip_diag() - Test chip for proper operation.
 639  * @ha: HA context
 640  *
 641  * Returns 0 on success.
 642  */
 643 int
 644 qla2x00_chip_diag(scsi_qla_host_t *ha)
 645 {
 646         int             rval;
 647         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 648         unsigned long   flags = 0;
 649         uint16_t        data;
 650         uint32_t        cnt;
 651         uint16_t        mb[5];
 652
 653         /* Assume a failed state */
 654         rval = QLA_FUNCTION_FAILED;
 655
 656         DEBUG3(printk("scsi(%ld): Testing device at %lx.\n",
 657             ha->host_no, (u_long)&reg->flash_address));
 658
 659         spin_lock_irqsave(&ha->hardware_lock, flags);
 660
 661         /* Reset ISP chip. */
 662         WRT_REG_WORD(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
 663
 664         /*
 665          * We need to have a delay here since the card will not respond while
 666          * in reset causing an MCA on some architectures.
 667          */
 668         udelay(20);
 669         data = qla2x00_debounce_register(&reg->ctrl_status);
 670         for (cnt = 6000000 ; cnt && (data & CSR_ISP_SOFT_RESET); cnt--) {
 671                 udelay(5);
 672                 data = RD_REG_WORD(&reg->ctrl_status);
 673                 barrier();
 674         }
 675
 676         if (!cnt)
 677                 goto chip_diag_failed;
 678
 679         DEBUG3(printk("scsi(%ld): Reset register cleared by chip reset\n",
 680             ha->host_no));
 681
 682         /* Reset RISC processor. */
 683         WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
 684         WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
 685
 686         /* Workaround for QLA2312 PCI parity error */
 687         if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
 688                 data = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 0));
 689                 for (cnt = 6000000; cnt && (data == MBS_BUSY); cnt--) {
 690                         udelay(5);
 691                         data = RD_MAILBOX_REG(ha, reg, 0);
 692                         barrier();
 693                 }
 694         } else
 695                 udelay(10);
 696
 697         if (!cnt)
 698                 goto chip_diag_failed;
 699
 700         /* Check product ID of chip */
 701         DEBUG3(printk("scsi(%ld): Checking product ID of chip\n", ha->host_no));
 702
 703         mb[1] = RD_MAILBOX_REG(ha, reg, 1);
 704         mb[2] = RD_MAILBOX_REG(ha, reg, 2);
 705         mb[3] = RD_MAILBOX_REG(ha, reg, 3);
 706         mb[4] = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 4));
 707         if (mb[1] != PROD_ID_1 || (mb[2] != PROD_ID_2 && mb[2] != PROD_ID_2a) ||
 708             mb[3] != PROD_ID_3) {
 709                 qla_printk(KERN_WARNING, ha,
 710                     "Wrong product ID = 0x%x,0x%x,0x%x\n", mb[1], mb[2], mb[3]);
 711
 712                 goto chip_diag_failed;
 713         }
 714         ha->product_id[0] = mb[1];
 715         ha->product_id[1] = mb[2];
 716         ha->product_id[2] = mb[3];
 717         ha->product_id[3] = mb[4];
 718
 719         /* Adjust fw RISC transfer size */
 720         if (ha->request_q_length > 1024)
 721                 ha->fw_transfer_size = REQUEST_ENTRY_SIZE * 1024;
 722         else
 723                 ha->fw_transfer_size = REQUEST_ENTRY_SIZE *
 724                     ha->request_q_length;
 725
 726         if (IS_QLA2200(ha) &&
 727             RD_MAILBOX_REG(ha, reg, 7) == QLA2200A_RISC_ROM_VER) {
 728                 /* Limit firmware transfer size with a 2200A */
 729                 DEBUG3(printk("scsi(%ld): Found QLA2200A chip.\n",
 730                     ha->host_no));
 731
 732                 ha->fw_transfer_size = 128;
 733         }
 734
 735         /* Wrap Incoming Mailboxes Test. */
 736         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 737
 738         DEBUG3(printk("scsi(%ld): Checking mailboxes.\n", ha->host_no));
 739         rval = qla2x00_mbx_reg_test(ha);
 740         if (rval) {
 741                 DEBUG(printk("scsi(%ld): Failed mailbox send register test\n",
 742                     ha->host_no));
 743                 qla_printk(KERN_WARNING, ha,
 744                     "Failed mailbox send register test\n");
 745         }
 746         else {
 747                 /* Flag a successful rval */
 748                 rval = QLA_SUCCESS;
 749         }
 750         spin_lock_irqsave(&ha->hardware_lock, flags);
 751
 752 chip_diag_failed:
 753         if (rval)
 754                 DEBUG2_3(printk("scsi(%ld): Chip diagnostics **** FAILED "
 755                     "****\n", ha->host_no));
 756
 757         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 758
 759         return (rval);
 760 }
 761
 762 /**
 763  * qla24xx_chip_diag() - Test ISP24xx for proper operation.
 764  * @ha: HA context
 765  *
 766  * Returns 0 on success.
 767  */
 768 int
 769 qla24xx_chip_diag(scsi_qla_host_t *ha)
 770 {
 771         int rval;
 772
 773         /* Perform RISC reset. */
 774         qla24xx_reset_risc(ha);
 775
 776         ha->fw_transfer_size = REQUEST_ENTRY_SIZE * 1024;
 777
 778         rval = qla2x00_mbx_reg_test(ha);
 779         if (rval) {
 780                 DEBUG(printk("scsi(%ld): Failed mailbox send register test\n",
 781                     ha->host_no));
 782                 qla_printk(KERN_WARNING, ha,
 783                     "Failed mailbox send register test\n");
 784         } else {
 785                 /* Flag a successful rval */
 786                 rval = QLA_SUCCESS;
 787         }
 788
 789         return rval;
 790 }
 791
 792 static void
 793 qla2x00_alloc_fw_dump(scsi_qla_host_t *ha)
 794 {
 795         ha->fw_dumped = 0;
 796         ha->fw_dump24_len = sizeof(struct qla24xx_fw_dump);
 797         ha->fw_dump24_len += (ha->fw_memory_size - 0x100000) * sizeof(uint32_t);
 798         ha->fw_dump24 = vmalloc(ha->fw_dump24_len);
 799         if (ha->fw_dump24)
 800                 qla_printk(KERN_INFO, ha, "Allocated (%d KB) for firmware "
 801                     "dump...\n", ha->fw_dump24_len / 1024);
 802         else
 803                 qla_printk(KERN_WARNING, ha, "Unable to allocate (%d KB) for "
 804                     "firmware dump!!!\n", ha->fw_dump24_len / 1024);
 805 }
 806
 807 /**
 808  * qla2x00_resize_request_q() - Resize request queue given available ISP memory.
 809  * @ha: HA context
 810  *
 811  * Returns 0 on success.
 812  */
 813 static void
 814 qla2x00_resize_request_q(scsi_qla_host_t *ha)
 815 {
 816         int rval;
 817         uint16_t fw_iocb_cnt = 0;
 818         uint16_t request_q_length = REQUEST_ENTRY_CNT_2XXX_EXT_MEM;
 819         dma_addr_t request_dma;
 820         request_t *request_ring;
 821
 822         /* Valid only on recent ISPs. */
 823         if (IS_QLA2100(ha) || IS_QLA2200(ha))
 824                 return;
 825
 826         if (IS_QLA24XX(ha) || IS_QLA25XX(ha))
 827                 qla2x00_alloc_fw_dump(ha);
 828
 829         /* Retrieve IOCB counts available to the firmware. */
 830         rval = qla2x00_get_resource_cnts(ha, NULL, NULL, NULL, &fw_iocb_cnt);
 831         if (rval)
 832                 return;
 833         /* No point in continuing if current settings are sufficient. */
 834         if (fw_iocb_cnt < 1024)
 835                 return;
 836         if (ha->request_q_length >= request_q_length)
 837                 return;
 838
 839         /* Attempt to claim larger area for request queue. */
 840         request_ring = dma_alloc_coherent(&ha->pdev->dev,
 841             (request_q_length + 1) * sizeof(request_t), &request_dma,
 842             GFP_KERNEL);
 843         if (request_ring == NULL)
 844                 return;
 845
 846         /* Resize successful, report extensions. */
 847         qla_printk(KERN_INFO, ha, "Extended memory detected (%d KB)...\n",
 848             (ha->fw_memory_size + 1) / 1024);
 849         qla_printk(KERN_INFO, ha, "Resizing request queue depth "
 850             "(%d -> %d)...\n", ha->request_q_length, request_q_length);
 851
 852         /* Clear old allocations. */
 853         dma_free_coherent(&ha->pdev->dev,
 854             (ha->request_q_length + 1) * sizeof(request_t), ha->request_ring,
 855             ha->request_dma);
 856
 857         /* Begin using larger queue. */
 858         ha->request_q_length = request_q_length;
 859         ha->request_ring = request_ring;
 860         ha->request_dma = request_dma;
 861 }
 862
 863 /**
 864  * qla2x00_setup_chip() - Load and start RISC firmware.
 865  * @ha: HA context
 866  *
 867  * Returns 0 on success.
 868  */
 869 static int
 870 qla2x00_setup_chip(scsi_qla_host_t *ha)
 871 {
 872         int rval;
 873         uint32_t srisc_address = 0;
 874
 875         /* Load firmware sequences */
 876         rval = ha->isp_ops.load_risc(ha, &srisc_address);
 877         if (rval == QLA_SUCCESS) {
 878                 DEBUG(printk("scsi(%ld): Verifying Checksum of loaded RISC "
 879                     "code.\n", ha->host_no));
 880
 881                 rval = qla2x00_verify_checksum(ha, srisc_address);
 882                 if (rval == QLA_SUCCESS) {
 883                         /* Start firmware execution. */
 884                         DEBUG(printk("scsi(%ld): Checksum OK, start "
 885                             "firmware.\n", ha->host_no));
 886
 887                         rval = qla2x00_execute_fw(ha, srisc_address);
 888                         /* Retrieve firmware information. */
 889                         if (rval == QLA_SUCCESS && ha->fw_major_version == 0) {
 890                                 qla2x00_get_fw_version(ha,
 891                                     &ha->fw_major_version,
 892                                     &ha->fw_minor_version,
 893                                     &ha->fw_subminor_version,
 894                                     &ha->fw_attributes, &ha->fw_memory_size);
 895                                 qla2x00_resize_request_q(ha);
 896                         }
 897                 } else {
 898                         DEBUG2(printk(KERN_INFO
 899                             "scsi(%ld): ISP Firmware failed checksum.\n",
 900                             ha->host_no));
 901                 }
 902         }
 903
 904         if (rval) {
 905                 DEBUG2_3(printk("scsi(%ld): Setup chip **** FAILED ****.\n",
 906                     ha->host_no));
 907         }
 908
 909         return (rval);
 910 }
 911
 912 /**
 913  * qla2x00_init_response_q_entries() - Initializes response queue entries.
 914  * @ha: HA context
 915  *
 916  * Beginning of request ring has initialization control block already built
 917  * by nvram config routine.
 918  *
 919  * Returns 0 on success.
 920  */
 921 static void
 922 qla2x00_init_response_q_entries(scsi_qla_host_t *ha)
 923 {
 924         uint16_t cnt;
 925         response_t *pkt;
 926
 927         pkt = ha->response_ring_ptr;
 928         for (cnt = 0; cnt < ha->response_q_length; cnt++) {
 929                 pkt->signature = RESPONSE_PROCESSED;
 930                 pkt++;
 931         }
 932
 933 }
 934
 935 /**
 936  * qla2x00_update_fw_options() - Read and process firmware options.
 937  * @ha: HA context
 938  *
 939  * Returns 0 on success.
 940  */
 941 void
 942 qla2x00_update_fw_options(scsi_qla_host_t *ha)
 943 {
 944         uint16_t swing, emphasis, tx_sens, rx_sens;
 945
 946         memset(ha->fw_options, 0, sizeof(ha->fw_options));
 947         qla2x00_get_fw_options(ha, ha->fw_options);
 948
 949         if (IS_QLA2100(ha) || IS_QLA2200(ha))
 950                 return;
 951
 952         /* Serial Link options. */
 953         DEBUG3(printk("scsi(%ld): Serial link options:\n",
 954             ha->host_no));
 955         DEBUG3(qla2x00_dump_buffer((uint8_t *)&ha->fw_seriallink_options,
 956             sizeof(ha->fw_seriallink_options)));
 957
 958         ha->fw_options[1] &= ~FO1_SET_EMPHASIS_SWING;
 959         if (ha->fw_seriallink_options[3] & BIT_2) {
 960                 ha->fw_options[1] |= FO1_SET_EMPHASIS_SWING;
 961
 962                 /*  1G settings */
 963                 swing = ha->fw_seriallink_options[2] & (BIT_2 | BIT_1 | BIT_0);
 964                 emphasis = (ha->fw_seriallink_options[2] &
 965                     (BIT_4 | BIT_3)) >> 3;
 966                 tx_sens = ha->fw_seriallink_options[0] &
 967                     (BIT_3 | BIT_2 | BIT_1 | BIT_0);
 968                 rx_sens = (ha->fw_seriallink_options[0] &
 969                     (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
 970                 ha->fw_options[10] = (emphasis << 14) | (swing << 8);
 971                 if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
 972                         if (rx_sens == 0x0)
 973                                 rx_sens = 0x3;
 974                         ha->fw_options[10] |= (tx_sens << 4) | rx_sens;
 975                 } else if (IS_QLA2322(ha) || IS_QLA6322(ha))
 976                         ha->fw_options[10] |= BIT_5 |
 977                             ((rx_sens & (BIT_1 | BIT_0)) << 2) |
 978                             (tx_sens & (BIT_1 | BIT_0));
 979
 980                 /*  2G settings */
 981                 swing = (ha->fw_seriallink_options[2] &
 982                     (BIT_7 | BIT_6 | BIT_5)) >> 5;
 983                 emphasis = ha->fw_seriallink_options[3] & (BIT_1 | BIT_0);
 984                 tx_sens = ha->fw_seriallink_options[1] &
 985                     (BIT_3 | BIT_2 | BIT_1 | BIT_0);
 986                 rx_sens = (ha->fw_seriallink_options[1] &
 987                     (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
 988                 ha->fw_options[11] = (emphasis << 14) | (swing << 8);
 989                 if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
 990                         if (rx_sens == 0x0)
 991                                 rx_sens = 0x3;
 992                         ha->fw_options[11] |= (tx_sens << 4) | rx_sens;
 993                 } else if (IS_QLA2322(ha) || IS_QLA6322(ha))
 994                         ha->fw_options[11] |= BIT_5 |
 995                             ((rx_sens & (BIT_1 | BIT_0)) << 2) |
 996                             (tx_sens & (BIT_1 | BIT_0));
 997         }
 998
 999         /* FCP2 options. */
1000         /*  Return command IOCBs without waiting for an ABTS to complete. */
1001         ha->fw_options[3] |= BIT_13;
1002
1003         /* LED scheme. */
1004         if (ha->flags.enable_led_scheme)
1005                 ha->fw_options[2] |= BIT_12;
1006
1007         /* Update firmware options. */
1008         qla2x00_set_fw_options(ha, ha->fw_options);
1009 }
1010
1011 void
1012 qla24xx_update_fw_options(scsi_qla_host_t *ha)
1013 {
1014         int rval;
1015
1016         /* Update Serial Link options. */
1017         if ((ha->fw_seriallink_options24[0] & BIT_0) == 0)
1018                 return;
1019
1020         rval = qla2x00_set_serdes_params(ha, ha->fw_seriallink_options24[1],
1021             ha->fw_seriallink_options24[2], ha->fw_seriallink_options24[3]);
1022         if (rval != QLA_SUCCESS) {
1023                 qla_printk(KERN_WARNING, ha,
1024                     "Unable to update Serial Link options (%x).\n", rval);
1025         }
1026 }
1027
1028 void
1029 qla2x00_config_rings(struct scsi_qla_host *ha)
1030 {
1031         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1032
1033         /* Setup ring parameters in initialization control block. */
1034         ha->init_cb->request_q_outpointer = __constant_cpu_to_le16(0);
1035         ha->init_cb->response_q_inpointer = __constant_cpu_to_le16(0);
1036         ha->init_cb->request_q_length = cpu_to_le16(ha->request_q_length);
1037         ha->init_cb->response_q_length = cpu_to_le16(ha->response_q_length);
1038         ha->init_cb->request_q_address[0] = cpu_to_le32(LSD(ha->request_dma));
1039         ha->init_cb->request_q_address[1] = cpu_to_le32(MSD(ha->request_dma));
1040         ha->init_cb->response_q_address[0] = cpu_to_le32(LSD(ha->response_dma));
1041         ha->init_cb->response_q_address[1] = cpu_to_le32(MSD(ha->response_dma));
1042
1043         WRT_REG_WORD(ISP_REQ_Q_IN(ha, reg), 0);
1044         WRT_REG_WORD(ISP_REQ_Q_OUT(ha, reg), 0);
1045         WRT_REG_WORD(ISP_RSP_Q_IN(ha, reg), 0);
1046         WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), 0);
1047         RD_REG_WORD(ISP_RSP_Q_OUT(ha, reg));            /* PCI Posting. */
1048 }
1049
1050 void
1051 qla24xx_config_rings(struct scsi_qla_host *ha)
1052 {
1053         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1054         struct init_cb_24xx *icb;
1055
1056         /* Setup ring parameters in initialization control block. */
1057         icb = (struct init_cb_24xx *)ha->init_cb;
1058         icb->request_q_outpointer = __constant_cpu_to_le16(0);
1059         icb->response_q_inpointer = __constant_cpu_to_le16(0);
1060         icb->request_q_length = cpu_to_le16(ha->request_q_length);
1061         icb->response_q_length = cpu_to_le16(ha->response_q_length);
1062         icb->request_q_address[0] = cpu_to_le32(LSD(ha->request_dma));
1063         icb->request_q_address[1] = cpu_to_le32(MSD(ha->request_dma));
1064         icb->response_q_address[0] = cpu_to_le32(LSD(ha->response_dma));
1065         icb->response_q_address[1] = cpu_to_le32(MSD(ha->response_dma));
1066
1067         WRT_REG_DWORD(&reg->req_q_in, 0);
1068         WRT_REG_DWORD(&reg->req_q_out, 0);
1069         WRT_REG_DWORD(&reg->rsp_q_in, 0);
1070         WRT_REG_DWORD(&reg->rsp_q_out, 0);
1071         RD_REG_DWORD(&reg->rsp_q_out);
1072 }
1073
1074 /**
1075  * qla2x00_init_rings() - Initializes firmware.
1076  * @ha: HA context
1077  *
1078  * Beginning of request ring has initialization control block already built
1079  * by nvram config routine.
1080  *
1081  * Returns 0 on success.
1082  */
1083 static int
1084 qla2x00_init_rings(scsi_qla_host_t *ha)
1085 {
1086         int     rval;
1087         unsigned long flags = 0;
1088         int cnt;
1089
1090         spin_lock_irqsave(&ha->hardware_lock, flags);
1091
1092         /* Clear outstanding commands array. */
1093         for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++)
1094                 ha->outstanding_cmds[cnt] = NULL;
1095
1096         ha->current_outstanding_cmd = 0;
1097
1098         /* Clear RSCN queue. */
1099         ha->rscn_in_ptr = 0;
1100         ha->rscn_out_ptr = 0;
1101
1102         /* Initialize firmware. */
1103         ha->request_ring_ptr  = ha->request_ring;
1104         ha->req_ring_index    = 0;
1105         ha->req_q_cnt         = ha->request_q_length;
1106         ha->response_ring_ptr = ha->response_ring;
1107         ha->rsp_ring_index    = 0;
1108
1109         /* Initialize response queue entries */
1110         qla2x00_init_response_q_entries(ha);
1111
1112         ha->isp_ops.config_rings(ha);
1113
1114         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1115
1116         /* Update any ISP specific firmware options before initialization. */
1117         ha->isp_ops.update_fw_options(ha);
1118
1119         DEBUG(printk("scsi(%ld): Issue init firmware.\n", ha->host_no));
1120         rval = qla2x00_init_firmware(ha, ha->init_cb_size);
1121         if (rval) {
1122                 DEBUG2_3(printk("scsi(%ld): Init firmware **** FAILED ****.\n",
1123                     ha->host_no));
1124         } else {
1125                 DEBUG3(printk("scsi(%ld): Init firmware -- success.\n",
1126                     ha->host_no));
1127         }
1128
1129         return (rval);
1130 }
1131
1132 /**
1133  * qla2x00_fw_ready() - Waits for firmware ready.
1134  * @ha: HA context
1135  *
1136  * Returns 0 on success.
1137  */
1138 static int
1139 qla2x00_fw_ready(scsi_qla_host_t *ha)
1140 {
1141         int             rval;
1142         unsigned long   wtime, mtime;
1143         uint16_t        min_wait;       /* Minimum wait time if loop is down */
1144         uint16_t        wait_time;      /* Wait time if loop is coming ready */
1145         uint16_t        fw_state;
1146
1147         rval = QLA_SUCCESS;
1148
1149         /* 20 seconds for loop down. */
1150         min_wait = 20;
1151
1152         /*
1153          * Firmware should take at most one RATOV to login, plus 5 seconds for
1154          * our own processing.
1155          */
1156         if ((wait_time = (ha->retry_count*ha->login_timeout) + 5) < min_wait) {
1157                 wait_time = min_wait;
1158         }
1159
1160         /* Min wait time if loop down */
1161         mtime = jiffies + (min_wait * HZ);
1162
1163         /* wait time before firmware ready */
1164         wtime = jiffies + (wait_time * HZ);
1165
1166         /* Wait for ISP to finish LIP */
1167         if (!ha->flags.init_done)
1168                 qla_printk(KERN_INFO, ha, "Waiting for LIP to complete...\n");
1169
1170         DEBUG3(printk("scsi(%ld): Waiting for LIP to complete...\n",
1171             ha->host_no));
1172
1173         do {
1174                 rval = qla2x00_get_firmware_state(ha, &fw_state);
1175                 if (rval == QLA_SUCCESS) {
1176                         if (fw_state < FSTATE_LOSS_OF_SYNC) {
1177                                 ha->device_flags &= ~DFLG_NO_CABLE;
1178                         }
1179                         if (fw_state == FSTATE_READY) {
1180                                 DEBUG(printk("scsi(%ld): F/W Ready - OK \n",
1181                                     ha->host_no));
1182
1183                                 qla2x00_get_retry_cnt(ha, &ha->retry_count,
1184                                     &ha->login_timeout, &ha->r_a_tov);
1185
1186                                 rval = QLA_SUCCESS;
1187                                 break;
1188                         }
1189
1190                         rval = QLA_FUNCTION_FAILED;
1191
1192                         if (atomic_read(&ha->loop_down_timer) &&
1193                             (fw_state >= FSTATE_LOSS_OF_SYNC ||
1194                                 fw_state == FSTATE_WAIT_AL_PA)) {
1195                                 /* Loop down. Timeout on min_wait for states
1196                                  * other than Wait for Login.
1197                                  */
1198                                 if (time_after_eq(jiffies, mtime)) {
1199                                         qla_printk(KERN_INFO, ha,
1200                                             "Cable is unplugged...\n");
1201
1202                                         ha->device_flags |= DFLG_NO_CABLE;
1203                                         break;
1204                                 }
1205                         }
1206                 } else {
1207                         /* Mailbox cmd failed. Timeout on min_wait. */
1208                         if (time_after_eq(jiffies, mtime))
1209                                 break;
1210                 }
1211
1212                 if (time_after_eq(jiffies, wtime))
1213                         break;
1214
1215                 /* Delay for a while */
1216                 msleep(500);
1217
1218                 DEBUG3(printk("scsi(%ld): fw_state=%x curr time=%lx.\n",
1219                     ha->host_no, fw_state, jiffies));
1220         } while (1);
1221
1222         DEBUG(printk("scsi(%ld): fw_state=%x curr time=%lx.\n",
1223             ha->host_no, fw_state, jiffies));
1224
1225         if (rval) {
1226                 DEBUG2_3(printk("scsi(%ld): Firmware ready **** FAILED ****.\n",
1227                     ha->host_no));
1228         }
1229
1230         return (rval);
1231 }
1232
1233 /*
1234 *  qla2x00_configure_hba
1235 *      Setup adapter context.
1236 *
1237 * Input:
1238 *      ha = adapter state pointer.
1239 *
1240 * Returns:
1241 *      0 = success
1242 *
1243 * Context:
1244 *      Kernel context.
1245 */
1246 static int
1247 qla2x00_configure_hba(scsi_qla_host_t *ha)
1248 {
1249         int       rval;
1250         uint16_t      loop_id;
1251         uint16_t      topo;
1252         uint8_t       al_pa;
1253         uint8_t       area;
1254         uint8_t       domain;
1255         char            connect_type[22];
1256
1257         /* Get host addresses. */
1258         rval = qla2x00_get_adapter_id(ha,
1259             &loop_id, &al_pa, &area, &domain, &topo);
1260         if (rval != QLA_SUCCESS) {
1261                 qla_printk(KERN_WARNING, ha,
1262                     "ERROR -- Unable to get host loop ID.\n");
1263                 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
1264                 return (rval);
1265         }
1266
1267         if (topo == 4) {
1268                 qla_printk(KERN_INFO, ha,
1269                         "Cannot get topology - retrying.\n");
1270                 return (QLA_FUNCTION_FAILED);
1271         }
1272
1273         ha->loop_id = loop_id;
1274
1275         /* initialize */
1276         ha->min_external_loopid = SNS_FIRST_LOOP_ID;
1277         ha->operating_mode = LOOP;
1278
1279         switch (topo) {
1280         case 0:
1281                 DEBUG3(printk("scsi(%ld): HBA in NL topology.\n",
1282                     ha->host_no));
1283                 ha->current_topology = ISP_CFG_NL;
1284                 strcpy(connect_type, "(Loop)");
1285                 break;
1286
1287         case 1:
1288                 DEBUG3(printk("scsi(%ld): HBA in FL topology.\n",
1289                     ha->host_no));
1290                 ha->current_topology = ISP_CFG_FL;
1291                 strcpy(connect_type, "(FL_Port)");
1292                 break;
1293
1294         case 2:
1295                 DEBUG3(printk("scsi(%ld): HBA in N P2P topology.\n",
1296                     ha->host_no));
1297                 ha->operating_mode = P2P;
1298                 ha->current_topology = ISP_CFG_N;
1299                 strcpy(connect_type, "(N_Port-to-N_Port)");
1300                 break;
1301
1302         case 3:
1303                 DEBUG3(printk("scsi(%ld): HBA in F P2P topology.\n",
1304                     ha->host_no));
1305                 ha->operating_mode = P2P;
1306                 ha->current_topology = ISP_CFG_F;
1307                 strcpy(connect_type, "(F_Port)");
1308                 break;
1309
1310         default:
1311                 DEBUG3(printk("scsi(%ld): HBA in unknown topology %x. "
1312                     "Using NL.\n",
1313                     ha->host_no, topo));
1314                 ha->current_topology = ISP_CFG_NL;
1315                 strcpy(connect_type, "(Loop)");
1316                 break;
1317         }
1318
1319         /* Save Host port and loop ID. */
1320         /* byte order - Big Endian */
1321         ha->d_id.b.domain = domain;
1322         ha->d_id.b.area = area;
1323         ha->d_id.b.al_pa = al_pa;
1324
1325         if (!ha->flags.init_done)
1326                 qla_printk(KERN_INFO, ha,
1327                     "Topology - %s, Host Loop address 0x%x\n",
1328                     connect_type, ha->loop_id);
1329
1330         if (rval) {
1331                 DEBUG2_3(printk("scsi(%ld): FAILED.\n", ha->host_no));
1332         } else {
1333                 DEBUG3(printk("scsi(%ld): exiting normally.\n", ha->host_no));
1334         }
1335
1336         return(rval);
1337 }
1338
1339 /*
1340 * NVRAM configuration for ISP 2xxx
1341 *
1342 * Input:
1343 *      ha                = adapter block pointer.
1344 *
1345 * Output:
1346 *      initialization control block in response_ring
1347 *      host adapters parameters in host adapter block
1348 *
1349 * Returns:
1350 *      0 = success.
1351 */
1352 int
1353 qla2x00_nvram_config(scsi_qla_host_t *ha)
1354 {
1355         int             rval;
1356         uint8_t         chksum = 0;
1357         uint16_t        cnt;
1358         uint8_t         *dptr1, *dptr2;
1359         init_cb_t       *icb = ha->init_cb;
1360         nvram_t         *nv = (nvram_t *)ha->request_ring;
1361         uint8_t         *ptr = (uint8_t *)ha->request_ring;
1362         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1363
1364         rval = QLA_SUCCESS;
1365
1366         /* Determine NVRAM starting address. */
1367         ha->nvram_size = sizeof(nvram_t);
1368         ha->nvram_base = 0;
1369         if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA2300(ha))
1370                 if ((RD_REG_WORD(&reg->ctrl_status) >> 14) == 1)
1371                         ha->nvram_base = 0x80;
1372
1373         /* Get NVRAM data and calculate checksum. */
1374         ha->isp_ops.read_nvram(ha, ptr, ha->nvram_base, ha->nvram_size);
1375         for (cnt = 0, chksum = 0; cnt < ha->nvram_size; cnt++)
1376                 chksum += *ptr++;
1377
1378         DEBUG5(printk("scsi(%ld): Contents of NVRAM\n", ha->host_no));
1379         DEBUG5(qla2x00_dump_buffer((uint8_t *)ha->request_ring,
1380             ha->nvram_size));
1381
1382         /* Bad NVRAM data, set defaults parameters. */
1383         if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' ||
1384             nv->id[2] != 'P' || nv->id[3] != ' ' || nv->nvram_version < 1) {
1385                 /* Reset NVRAM data. */
1386                 qla_printk(KERN_WARNING, ha, "Inconsistent NVRAM detected: "
1387                     "checksum=0x%x id=%c version=0x%x.\n", chksum, nv->id[0],
1388                     nv->nvram_version);
1389                 qla_printk(KERN_WARNING, ha, "Falling back to functioning (yet "
1390                     "invalid -- WWPN) defaults.\n");
1391
1392                 /*
1393                  * Set default initialization control block.
1394                  */
1395                 memset(nv, 0, ha->nvram_size);
1396                 nv->parameter_block_version = ICB_VERSION;
1397
1398                 if (IS_QLA23XX(ha)) {
1399                         nv->firmware_options[0] = BIT_2 | BIT_1;
1400                         nv->firmware_options[1] = BIT_7 | BIT_5;
1401                         nv->add_firmware_options[0] = BIT_5;
1402                         nv->add_firmware_options[1] = BIT_5 | BIT_4;
1403                         nv->frame_payload_size = __constant_cpu_to_le16(2048);
1404                         nv->special_options[1] = BIT_7;
1405                 } else if (IS_QLA2200(ha)) {
1406                         nv->firmware_options[0] = BIT_2 | BIT_1;
1407                         nv->firmware_options[1] = BIT_7 | BIT_5;
1408                         nv->add_firmware_options[0] = BIT_5;
1409                         nv->add_firmware_options[1] = BIT_5 | BIT_4;
1410                         nv->frame_payload_size = __constant_cpu_to_le16(1024);
1411                 } else if (IS_QLA2100(ha)) {
1412                         nv->firmware_options[0] = BIT_3 | BIT_1;
1413                         nv->firmware_options[1] = BIT_5;
1414                         nv->frame_payload_size = __constant_cpu_to_le16(1024);
1415                 }
1416
1417                 nv->max_iocb_allocation = __constant_cpu_to_le16(256);
1418                 nv->execution_throttle = __constant_cpu_to_le16(16);
1419                 nv->retry_count = 8;
1420                 nv->retry_delay = 1;
1421
1422                 nv->port_name[0] = 33;
1423                 nv->port_name[3] = 224;
1424                 nv->port_name[4] = 139;
1425
1426                 nv->login_timeout = 4;
1427
1428                 /*
1429                  * Set default host adapter parameters
1430                  */
1431                 nv->host_p[1] = BIT_2;
1432                 nv->reset_delay = 5;
1433                 nv->port_down_retry_count = 8;
1434                 nv->max_luns_per_target = __constant_cpu_to_le16(8);
1435                 nv->link_down_timeout = 60;
1436
1437                 rval = 1;
1438         }
1439
1440 #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
1441         /*
1442          * The SN2 does not provide BIOS emulation which means you can't change
1443          * potentially bogus BIOS settings. Force the use of default settings
1444          * for link rate and frame size.  Hope that the rest of the settings
1445          * are valid.
1446          */
1447         if (ia64_platform_is("sn2")) {
1448                 nv->frame_payload_size = __constant_cpu_to_le16(2048);
1449                 if (IS_QLA23XX(ha))
1450                         nv->special_options[1] = BIT_7;
1451         }
1452 #endif
1453
1454         /* Reset Initialization control block */
1455         memset(icb, 0, ha->init_cb_size);
1456
1457         /*
1458          * Setup driver NVRAM options.
1459          */
1460         nv->firmware_options[0] |= (BIT_6 | BIT_1);
1461         nv->firmware_options[0] &= ~(BIT_5 | BIT_4);
1462         nv->firmware_options[1] |= (BIT_5 | BIT_0);
1463         nv->firmware_options[1] &= ~BIT_4;
1464
1465         if (IS_QLA23XX(ha)) {
1466                 nv->firmware_options[0] |= BIT_2;
1467                 nv->firmware_options[0] &= ~BIT_3;
1468                 nv->add_firmware_options[1] |= BIT_5 | BIT_4;
1469
1470                 if (IS_QLA2300(ha)) {
1471                         if (ha->fb_rev == FPM_2310) {
1472                                 strcpy(ha->model_number, "QLA2310");
1473                         } else {
1474                                 strcpy(ha->model_number, "QLA2300");
1475                         }
1476                 } else {
1477                         if (rval == 0 &&
1478                             memcmp(nv->model_number, BINZERO,
1479                                     sizeof(nv->model_number)) != 0) {
1480                                 char *st, *en;
1481
1482                                 strncpy(ha->model_number, nv->model_number,
1483                                     sizeof(nv->model_number));
1484                                 st = en = ha->model_number;
1485                                 en += sizeof(nv->model_number) - 1;
1486                                 while (en > st) {
1487                                         if (*en != 0x20 && *en != 0x00)
1488                                                 break;
1489                                         *en-- = '\0';
1490                                 }
1491                         } else {
1492                                 uint16_t        index;
1493
1494                                 index = (ha->pdev->subsystem_device & 0xff);
1495                                 if (index < QLA_MODEL_NAMES) {
1496                                         strcpy(ha->model_number,
1497                                             qla2x00_model_name[index]);
1498                                         ha->model_desc =
1499                                             qla2x00_model_desc[index];
1500                                 } else {
1501                                         strcpy(ha->model_number, "QLA23xx");
1502                                 }
1503                         }
1504                 }
1505         } else if (IS_QLA2200(ha)) {
1506                 nv->firmware_options[0] |= BIT_2;
1507                 /*
1508                  * 'Point-to-point preferred, else loop' is not a safe
1509                  * connection mode setting.
1510                  */
1511                 if ((nv->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) ==
1512                     (BIT_5 | BIT_4)) {
1513                         /* Force 'loop preferred, else point-to-point'. */
1514                         nv->add_firmware_options[0] &= ~(BIT_6 | BIT_5 | BIT_4);
1515                         nv->add_firmware_options[0] |= BIT_5;
1516                 }
1517                 strcpy(ha->model_number, "QLA22xx");
1518         } else /*if (IS_QLA2100(ha))*/ {
1519                 strcpy(ha->model_number, "QLA2100");
1520         }
1521
1522         /*
1523          * Copy over NVRAM RISC parameter block to initialization control block.
1524          */
1525         dptr1 = (uint8_t *)icb;
1526         dptr2 = (uint8_t *)&nv->parameter_block_version;
1527         cnt = (uint8_t *)&icb->request_q_outpointer - (uint8_t *)&icb->version;
1528         while (cnt--)
1529                 *dptr1++ = *dptr2++;
1530
1531         /* Copy 2nd half. */
1532         dptr1 = (uint8_t *)icb->add_firmware_options;
1533         cnt = (uint8_t *)icb->reserved_3 - (uint8_t *)icb->add_firmware_options;
1534         while (cnt--)
1535                 *dptr1++ = *dptr2++;
1536
1537         /* Prepare nodename */
1538         if ((icb->firmware_options[1] & BIT_6) == 0) {
1539                 /*
1540                  * Firmware will apply the following mask if the nodename was
1541                  * not provided.
1542                  */
1543                 memcpy(icb->node_name, icb->port_name, WWN_SIZE);
1544                 icb->node_name[0] &= 0xF0;
1545         }
1546
1547         /*
1548          * Set host adapter parameters.
1549          */
1550         ha->flags.disable_risc_code_load = ((nv->host_p[0] & BIT_4) ? 1 : 0);
1551         /* Always load RISC code on non ISP2[12]00 chips. */
1552         if (!IS_QLA2100(ha) && !IS_QLA2200(ha))
1553                 ha->flags.disable_risc_code_load = 0;
1554         ha->flags.enable_lip_reset = ((nv->host_p[1] & BIT_1) ? 1 : 0);
1555         ha->flags.enable_lip_full_login = ((nv->host_p[1] & BIT_2) ? 1 : 0);
1556         ha->flags.enable_target_reset = ((nv->host_p[1] & BIT_3) ? 1 : 0);
1557         ha->flags.enable_led_scheme = (nv->special_options[1] & BIT_4) ? 1 : 0;
1558
1559         ha->operating_mode =
1560             (icb->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) >> 4;
1561
1562         memcpy(ha->fw_seriallink_options, nv->seriallink_options,
1563             sizeof(ha->fw_seriallink_options));
1564
1565         /* save HBA serial number */
1566         ha->serial0 = icb->port_name[5];
1567         ha->serial1 = icb->port_name[6];
1568         ha->serial2 = icb->port_name[7];
1569         ha->node_name = icb->node_name;
1570         ha->port_name = icb->port_name;
1571
1572         icb->execution_throttle = __constant_cpu_to_le16(0xFFFF);
1573
1574         ha->retry_count = nv->retry_count;
1575
1576         /* Set minimum login_timeout to 4 seconds. */
1577         if (nv->login_timeout < ql2xlogintimeout)
1578                 nv->login_timeout = ql2xlogintimeout;
1579         if (nv->login_timeout < 4)
1580                 nv->login_timeout = 4;
1581         ha->login_timeout = nv->login_timeout;
1582         icb->login_timeout = nv->login_timeout;
1583
1584         /* Set minimum RATOV to 200 tenths of a second. */
1585         ha->r_a_tov = 200;
1586
1587         ha->loop_reset_delay = nv->reset_delay;
1588
1589         /* Link Down Timeout = 0:
1590          *
1591          *      When Port Down timer expires we will start returning
1592          *      I/O's to OS with "DID_NO_CONNECT".
1593          *
1594          * Link Down Timeout != 0:
1595          *
1596          *       The driver waits for the link to come up after link down
1597          *       before returning I/Os to OS with "DID_NO_CONNECT".
1598          */
1599         if (nv->link_down_timeout == 0) {
1600                 ha->loop_down_abort_time =
1601                     (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
1602         } else {
1603                 ha->link_down_timeout =  nv->link_down_timeout;
1604                 ha->loop_down_abort_time =
1605                     (LOOP_DOWN_TIME - ha->link_down_timeout);
1606         }
1607
1608         /*
1609          * Need enough time to try and get the port back.
1610          */
1611         ha->port_down_retry_count = nv->port_down_retry_count;
1612         if (qlport_down_retry)
1613                 ha->port_down_retry_count = qlport_down_retry;
1614         /* Set login_retry_count */
1615         ha->login_retry_count  = nv->retry_count;
1616         if (ha->port_down_retry_count == nv->port_down_retry_count &&
1617             ha->port_down_retry_count > 3)
1618                 ha->login_retry_count = ha->port_down_retry_count;
1619         else if (ha->port_down_retry_count > (int)ha->login_retry_count)
1620                 ha->login_retry_count = ha->port_down_retry_count;
1621         if (ql2xloginretrycount)
1622                 ha->login_retry_count = ql2xloginretrycount;
1623
1624         icb->lun_enables = __constant_cpu_to_le16(0);
1625         icb->command_resource_count = 0;
1626         icb->immediate_notify_resource_count = 0;
1627         icb->timeout = __constant_cpu_to_le16(0);
1628
1629         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
1630                 /* Enable RIO */
1631                 icb->firmware_options[0] &= ~BIT_3;
1632                 icb->add_firmware_options[0] &=
1633                     ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
1634                 icb->add_firmware_options[0] |= BIT_2;
1635                 icb->response_accumulation_timer = 3;
1636                 icb->interrupt_delay_timer = 5;
1637
1638                 ha->flags.process_response_queue = 1;
1639         } else {
1640                 /* Enable ZIO. */
1641                 if (!ha->flags.init_done) {
1642                         ha->zio_mode = icb->add_firmware_options[0] &
1643                             (BIT_3 | BIT_2 | BIT_1 | BIT_0);
1644                         ha->zio_timer = icb->interrupt_delay_timer ?
1645                             icb->interrupt_delay_timer: 2;
1646                 }
1647                 icb->add_firmware_options[0] &=
1648                     ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
1649                 ha->flags.process_response_queue = 0;
1650                 if (ha->zio_mode != QLA_ZIO_DISABLED) {
1651                         DEBUG2(printk("scsi(%ld): ZIO mode %d enabled; timer "
1652                             "delay (%d us).\n", ha->host_no, ha->zio_mode,
1653                             ha->zio_timer * 100));
1654                         qla_printk(KERN_INFO, ha,
1655                             "ZIO mode %d enabled; timer delay (%d us).\n",
1656                             ha->zio_mode, ha->zio_timer * 100);
1657
1658                         icb->add_firmware_options[0] |= (uint8_t)ha->zio_mode;
1659                         icb->interrupt_delay_timer = (uint8_t)ha->zio_timer;
1660                         ha->flags.process_response_queue = 1;
1661                 }
1662         }
1663
1664         if (rval) {
1665                 DEBUG2_3(printk(KERN_WARNING
1666                     "scsi(%ld): NVRAM configuration failed!\n", ha->host_no));
1667         }
1668         return (rval);
1669 }
1670
1671 static void
1672 qla2x00_rport_add(void *data)
1673 {
1674         fc_port_t *fcport = data;
1675
1676         qla2x00_reg_remote_port(fcport->ha, fcport);
1677 }
1678
1679 static void
1680 qla2x00_rport_del(void *data)
1681 {
1682         fc_port_t *fcport = data;
1683
1684         if (fcport->rport)
1685                 fc_remote_port_delete(fcport->rport);
1686         fcport->rport = NULL;
1687 }
1688
1689 /**
1690  * qla2x00_alloc_fcport() - Allocate a generic fcport.
1691  * @ha: HA context
1692  * @flags: allocation flags
1693  *
1694  * Returns a pointer to the allocated fcport, or NULL, if none available.
1695  */
1696 fc_port_t *
1697 qla2x00_alloc_fcport(scsi_qla_host_t *ha, gfp_t flags)
1698 {
1699         fc_port_t *fcport;
1700
1701         fcport = kmalloc(sizeof(fc_port_t), flags);
1702         if (fcport == NULL)
1703                 return (fcport);
1704
1705         /* Setup fcport template structure. */
1706         memset(fcport, 0, sizeof (fc_port_t));
1707         fcport->ha = ha;
1708         fcport->port_type = FCT_UNKNOWN;
1709         fcport->loop_id = FC_NO_LOOP_ID;
1710         fcport->iodesc_idx_sent = IODESC_INVALID_INDEX;
1711         atomic_set(&fcport->state, FCS_UNCONFIGURED);
1712         fcport->flags = FCF_RLC_SUPPORT;
1713         fcport->supported_classes = FC_COS_UNSPECIFIED;
1714         INIT_WORK(&fcport->rport_add_work, qla2x00_rport_add, fcport);
1715         INIT_WORK(&fcport->rport_del_work, qla2x00_rport_del, fcport);
1716
1717         return (fcport);
1718 }
1719
1720 /*
1721  * qla2x00_configure_loop
1722  *      Updates Fibre Channel Device Database with what is actually on loop.
1723  *
1724  * Input:
1725  *      ha                = adapter block pointer.
1726  *
1727  * Returns:
1728  *      0 = success.
1729  *      1 = error.
1730  *      2 = database was full and device was not configured.
1731  */
1732 static int
1733 qla2x00_configure_loop(scsi_qla_host_t *ha)
1734 {
1735         int  rval;
1736         unsigned long flags, save_flags;
1737
1738         rval = QLA_SUCCESS;
1739
1740         /* Get Initiator ID */
1741         if (test_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags)) {
1742                 rval = qla2x00_configure_hba(ha);
1743                 if (rval != QLA_SUCCESS) {
1744                         DEBUG(printk("scsi(%ld): Unable to configure HBA.\n",
1745                             ha->host_no));
1746                         return (rval);
1747                 }
1748         }
1749
1750         save_flags = flags = ha->dpc_flags;
1751         DEBUG(printk("scsi(%ld): Configure loop -- dpc flags =0x%lx\n",
1752             ha->host_no, flags));
1753
1754         /*
1755          * If we have both an RSCN and PORT UPDATE pending then handle them
1756          * both at the same time.
1757          */
1758         clear_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1759         clear_bit(RSCN_UPDATE, &ha->dpc_flags);
1760
1761         /* Determine what we need to do */
1762         if (ha->current_topology == ISP_CFG_FL &&
1763             (test_bit(LOCAL_LOOP_UPDATE, &flags))) {
1764
1765                 ha->flags.rscn_queue_overflow = 1;
1766                 set_bit(RSCN_UPDATE, &flags);
1767
1768         } else if (ha->current_topology == ISP_CFG_F &&
1769             (test_bit(LOCAL_LOOP_UPDATE, &flags))) {
1770
1771                 ha->flags.rscn_queue_overflow = 1;
1772                 set_bit(RSCN_UPDATE, &flags);
1773                 clear_bit(LOCAL_LOOP_UPDATE, &flags);
1774
1775         } else if (!ha->flags.online ||
1776             (test_bit(ABORT_ISP_ACTIVE, &flags))) {
1777
1778                 ha->flags.rscn_queue_overflow = 1;
1779                 set_bit(RSCN_UPDATE, &flags);
1780                 set_bit(LOCAL_LOOP_UPDATE, &flags);
1781         }
1782
1783         if (test_bit(LOCAL_LOOP_UPDATE, &flags)) {
1784                 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
1785                         rval = QLA_FUNCTION_FAILED;
1786                 } else {
1787                         rval = qla2x00_configure_local_loop(ha);
1788                 }
1789         }
1790
1791         if (rval == QLA_SUCCESS && test_bit(RSCN_UPDATE, &flags)) {
1792                 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
1793                         rval = QLA_FUNCTION_FAILED;
1794                 } else {
1795                         rval = qla2x00_configure_fabric(ha);
1796                 }
1797         }
1798
1799         if (rval == QLA_SUCCESS) {
1800                 if (atomic_read(&ha->loop_down_timer) ||
1801                     test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
1802                         rval = QLA_FUNCTION_FAILED;
1803                 } else {
1804                         atomic_set(&ha->loop_state, LOOP_READY);
1805
1806                         DEBUG(printk("scsi(%ld): LOOP READY\n", ha->host_no));
1807                 }
1808         }
1809
1810         if (rval) {
1811                 DEBUG2_3(printk("%s(%ld): *** FAILED ***\n",
1812                     __func__, ha->host_no));
1813         } else {
1814                 DEBUG3(printk("%s: exiting normally\n", __func__));
1815         }
1816
1817         /* Restore state if a resync event occured during processing */
1818         if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
1819                 if (test_bit(LOCAL_LOOP_UPDATE, &save_flags))
1820                         set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1821                 if (test_bit(RSCN_UPDATE, &save_flags))
1822                         set_bit(RSCN_UPDATE, &ha->dpc_flags);
1823         }
1824
1825         return (rval);
1826 }
1827
1828
1829
1830 /*
1831  * qla2x00_configure_local_loop
1832  *      Updates Fibre Channel Device Database with local loop devices.
1833  *
1834  * Input:
1835  *      ha = adapter block pointer.
1836  *
1837  * Returns:
1838  *      0 = success.
1839  */
1840 static int
1841 qla2x00_configure_local_loop(scsi_qla_host_t *ha)
1842 {
1843         int             rval, rval2;
1844         int             found_devs;
1845         int             found;
1846         fc_port_t       *fcport, *new_fcport;
1847
1848         uint16_t        index;
1849         uint16_t        entries;
1850         char            *id_iter;
1851         uint16_t        loop_id;
1852         uint8_t         domain, area, al_pa;
1853
1854         found_devs = 0;
1855         new_fcport = NULL;
1856         entries = MAX_FIBRE_DEVICES;
1857
1858         DEBUG3(printk("scsi(%ld): Getting FCAL position map\n", ha->host_no));
1859         DEBUG3(qla2x00_get_fcal_position_map(ha, NULL));
1860
1861         /* Get list of logged in devices. */
1862         memset(ha->gid_list, 0, GID_LIST_SIZE);
1863         rval = qla2x00_get_id_list(ha, ha->gid_list, ha->gid_list_dma,
1864             &entries);
1865         if (rval != QLA_SUCCESS)
1866                 goto cleanup_allocation;
1867
1868         DEBUG3(printk("scsi(%ld): Entries in ID list (%d)\n",
1869             ha->host_no, entries));
1870         DEBUG3(qla2x00_dump_buffer((uint8_t *)ha->gid_list,
1871             entries * sizeof(struct gid_list_info)));
1872
1873         /* Allocate temporary fcport for any new fcports discovered. */
1874         new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
1875         if (new_fcport == NULL) {
1876                 rval = QLA_MEMORY_ALLOC_FAILED;
1877                 goto cleanup_allocation;
1878         }
1879         new_fcport->flags &= ~FCF_FABRIC_DEVICE;
1880
1881         /*
1882          * Mark local devices that were present with FCF_DEVICE_LOST for now.
1883          */
1884         list_for_each_entry(fcport, &ha->fcports, list) {
1885                 if (atomic_read(&fcport->state) == FCS_ONLINE &&
1886                     fcport->port_type != FCT_BROADCAST &&
1887                     (fcport->flags & FCF_FABRIC_DEVICE) == 0) {
1888
1889                         DEBUG(printk("scsi(%ld): Marking port lost, "
1890                             "loop_id=0x%04x\n",
1891                             ha->host_no, fcport->loop_id));
1892
1893                         atomic_set(&fcport->state, FCS_DEVICE_LOST);
1894                         fcport->flags &= ~FCF_FARP_DONE;
1895                 }
1896         }
1897
1898         /* Add devices to port list. */
1899         id_iter = (char *)ha->gid_list;
1900         for (index = 0; index < entries; index++) {
1901                 domain = ((struct gid_list_info *)id_iter)->domain;
1902                 area = ((struct gid_list_info *)id_iter)->area;
1903                 al_pa = ((struct gid_list_info *)id_iter)->al_pa;
1904                 if (IS_QLA2100(ha) || IS_QLA2200(ha))
1905                         loop_id = (uint16_t)
1906                             ((struct gid_list_info *)id_iter)->loop_id_2100;
1907                 else
1908                         loop_id = le16_to_cpu(
1909                             ((struct gid_list_info *)id_iter)->loop_id);
1910                 id_iter += ha->gid_list_info_size;
1911
1912                 /* Bypass reserved domain fields. */
1913                 if ((domain & 0xf0) == 0xf0)
1914                         continue;
1915
1916                 /* Bypass if not same domain and area of adapter. */
1917                 if (area && domain &&
1918                     (area != ha->d_id.b.area || domain != ha->d_id.b.domain))
1919                         continue;
1920
1921                 /* Bypass invalid local loop ID. */
1922                 if (loop_id > LAST_LOCAL_LOOP_ID)
1923                         continue;
1924
1925                 /* Fill in member data. */
1926                 new_fcport->d_id.b.domain = domain;
1927                 new_fcport->d_id.b.area = area;
1928                 new_fcport->d_id.b.al_pa = al_pa;
1929                 new_fcport->loop_id = loop_id;
1930                 rval2 = qla2x00_get_port_database(ha, new_fcport, 0);
1931                 if (rval2 != QLA_SUCCESS) {
1932                         DEBUG2(printk("scsi(%ld): Failed to retrieve fcport "
1933                             "information -- get_port_database=%x, "
1934                             "loop_id=0x%04x\n",
1935                             ha->host_no, rval2, new_fcport->loop_id));
1936                         continue;
1937                 }
1938
1939                 /* Check for matching device in port list. */
1940                 found = 0;
1941                 fcport = NULL;
1942                 list_for_each_entry(fcport, &ha->fcports, list) {
1943                         if (memcmp(new_fcport->port_name, fcport->port_name,
1944                             WWN_SIZE))
1945                                 continue;
1946
1947                         fcport->flags &= ~(FCF_FABRIC_DEVICE |
1948                             FCF_PERSISTENT_BOUND);
1949                         fcport->loop_id = new_fcport->loop_id;
1950                         fcport->port_type = new_fcport->port_type;
1951                         fcport->d_id.b24 = new_fcport->d_id.b24;
1952                         memcpy(fcport->node_name, new_fcport->node_name,
1953                             WWN_SIZE);
1954
1955                         found++;
1956                         break;
1957                 }
1958
1959                 if (!found) {
1960                         /* New device, add to fcports list. */
1961                         new_fcport->flags &= ~FCF_PERSISTENT_BOUND;
1962                         list_add_tail(&new_fcport->list, &ha->fcports);
1963
1964                         /* Allocate a new replacement fcport. */
1965                         fcport = new_fcport;
1966                         new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
1967                         if (new_fcport == NULL) {
1968                                 rval = QLA_MEMORY_ALLOC_FAILED;
1969                                 goto cleanup_allocation;
1970                         }
1971                         new_fcport->flags &= ~FCF_FABRIC_DEVICE;
1972                 }
1973
1974                 qla2x00_update_fcport(ha, fcport);
1975
1976                 found_devs++;
1977         }
1978
1979 cleanup_allocation:
1980         if (new_fcport)
1981                 kfree(new_fcport);
1982
1983         if (rval != QLA_SUCCESS) {
1984                 DEBUG2(printk("scsi(%ld): Configure local loop error exit: "
1985                     "rval=%x\n", ha->host_no, rval));
1986         }
1987
1988         if (found_devs) {
1989                 ha->device_flags |= DFLG_LOCAL_DEVICES;
1990                 ha->device_flags &= ~DFLG_RETRY_LOCAL_DEVICES;
1991         }
1992
1993         return (rval);
1994 }
1995
1996 static void
1997 qla2x00_probe_for_all_luns(scsi_qla_host_t *ha)
1998 {
1999         fc_port_t       *fcport;
2000
2001         qla2x00_mark_all_devices_lost(ha);
2002         list_for_each_entry(fcport, &ha->fcports, list) {
2003                 if (fcport->port_type != FCT_TARGET)
2004                         continue;
2005
2006                 qla2x00_update_fcport(ha, fcport);
2007         }
2008 }
2009
2010 /*
2011  * qla2x00_update_fcport
2012  *      Updates device on list.
2013  *
2014  * Input:
2015  *      ha = adapter block pointer.
2016  *      fcport = port structure pointer.
2017  *
2018  * Return:
2019  *      0  - Success
2020  *  BIT_0 - error
2021  *
2022  * Context:
2023  *      Kernel context.
2024  */
2025 static void
2026 qla2x00_update_fcport(scsi_qla_host_t *ha, fc_port_t *fcport)
2027 {
2028         uint16_t        index;
2029         unsigned long flags;
2030         srb_t *sp;
2031
2032         fcport->ha = ha;
2033         fcport->login_retry = 0;
2034         fcport->port_login_retry_count = ha->port_down_retry_count *
2035             PORT_RETRY_TIME;
2036         atomic_set(&fcport->port_down_timer, ha->port_down_retry_count *
2037             PORT_RETRY_TIME);
2038         fcport->flags &= ~FCF_LOGIN_NEEDED;
2039
2040         /*
2041          * Check for outstanding cmd on tape Bypass LUN discovery if active
2042          * command on tape.
2043          */
2044         if (fcport->flags & FCF_TAPE_PRESENT) {
2045                 spin_lock_irqsave(&ha->hardware_lock, flags);
2046                 for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) {
2047                         fc_port_t *sfcp;
2048
2049                         if ((sp = ha->outstanding_cmds[index]) != 0) {
2050                                 sfcp = sp->fcport;
2051                                 if (sfcp == fcport) {
2052                                         atomic_set(&fcport->state, FCS_ONLINE);
2053                                         spin_unlock_irqrestore(
2054                                             &ha->hardware_lock, flags);
2055                                         return;
2056                                 }
2057                         }
2058                 }
2059                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2060         }
2061
2062         if (fcport->port_type == FCT_INITIATOR ||
2063             fcport->port_type == FCT_BROADCAST)
2064                 fcport->device_type = TYPE_PROCESSOR;
2065
2066         atomic_set(&fcport->state, FCS_ONLINE);
2067
2068         if (ha->flags.init_done)
2069                 qla2x00_reg_remote_port(ha, fcport);
2070 }
2071
2072 void
2073 qla2x00_reg_remote_port(scsi_qla_host_t *ha, fc_port_t *fcport)
2074 {
2075         struct fc_rport_identifiers rport_ids;
2076         struct fc_rport *rport;
2077
2078         if (fcport->rport) {
2079                 fc_remote_port_delete(fcport->rport);
2080                 fcport->rport = NULL;
2081         }
2082
2083         rport_ids.node_name = wwn_to_u64(fcport->node_name);
2084         rport_ids.port_name = wwn_to_u64(fcport->port_name);
2085         rport_ids.port_id = fcport->d_id.b.domain << 16 |
2086             fcport->d_id.b.area << 8 | fcport->d_id.b.al_pa;
2087         rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
2088         fcport->rport = rport = fc_remote_port_add(ha->host, 0, &rport_ids);
2089         if (!rport) {
2090                 qla_printk(KERN_WARNING, ha,
2091                     "Unable to allocate fc remote port!\n");
2092                 return;
2093         }
2094         *((fc_port_t **)rport->dd_data) = fcport;
2095         rport->supported_classes = fcport->supported_classes;
2096
2097         rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
2098         if (fcport->port_type == FCT_INITIATOR)
2099                 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
2100         if (fcport->port_type == FCT_TARGET)
2101                 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
2102         fc_remote_port_rolechg(rport, rport_ids.roles);
2103
2104         if (rport->scsi_target_id != -1 &&
2105             rport->scsi_target_id < ha->host->max_id)
2106                 fcport->os_target_id = rport->scsi_target_id;
2107 }
2108
2109 /*
2110  * qla2x00_configure_fabric
2111  *      Setup SNS devices with loop ID's.
2112  *
2113  * Input:
2114  *      ha = adapter block pointer.
2115  *
2116  * Returns:
2117  *      0 = success.
2118  *      BIT_0 = error
2119  */
2120 static int
2121 qla2x00_configure_fabric(scsi_qla_host_t *ha)
2122 {
2123         int     rval, rval2;
2124         fc_port_t       *fcport, *fcptemp;
2125         uint16_t        next_loopid;
2126         uint16_t        mb[MAILBOX_REGISTER_COUNT];
2127         uint16_t        loop_id;
2128         LIST_HEAD(new_fcports);
2129
2130         /* If FL port exists, then SNS is present */
2131         if (IS_QLA24XX(ha) || IS_QLA25XX(ha))
2132                 loop_id = NPH_F_PORT;
2133         else
2134                 loop_id = SNS_FL_PORT;
2135         rval = qla2x00_get_port_name(ha, loop_id, NULL, 0);
2136         if (rval != QLA_SUCCESS) {
2137                 DEBUG2(printk("scsi(%ld): MBC_GET_PORT_NAME Failed, No FL "
2138                     "Port\n", ha->host_no));
2139
2140                 ha->device_flags &= ~SWITCH_FOUND;
2141                 return (QLA_SUCCESS);
2142         }
2143
2144         /* Mark devices that need re-synchronization. */
2145         rval2 = qla2x00_device_resync(ha);
2146         if (rval2 == QLA_RSCNS_HANDLED) {
2147                 /* No point doing the scan, just continue. */
2148                 return (QLA_SUCCESS);
2149         }
2150         do {
2151                 /* FDMI support. */
2152                 if (ql2xfdmienable &&
2153                     test_and_clear_bit(REGISTER_FDMI_NEEDED, &ha->dpc_flags))
2154                         qla2x00_fdmi_register(ha);
2155
2156                 /* Ensure we are logged into the SNS. */
2157                 if (IS_QLA24XX(ha) || IS_QLA25XX(ha))
2158                         loop_id = NPH_SNS;
2159                 else
2160                         loop_id = SIMPLE_NAME_SERVER;
2161                 ha->isp_ops.fabric_login(ha, loop_id, 0xff, 0xff,
2162                     0xfc, mb, BIT_1 | BIT_0);
2163                 if (mb[0] != MBS_COMMAND_COMPLETE) {
2164                         DEBUG2(qla_printk(KERN_INFO, ha,
2165                             "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x "
2166                             "mb[2]=%x mb[6]=%x mb[7]=%x\n", loop_id,
2167                             mb[0], mb[1], mb[2], mb[6], mb[7]));
2168                         return (QLA_SUCCESS);
2169                 }
2170
2171                 if (test_and_clear_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags)) {
2172                         if (qla2x00_rft_id(ha)) {
2173                                 /* EMPTY */
2174                                 DEBUG2(printk("scsi(%ld): Register FC-4 "
2175                                     "TYPE failed.\n", ha->host_no));
2176                         }
2177                         if (qla2x00_rff_id(ha)) {
2178                                 /* EMPTY */
2179                                 DEBUG2(printk("scsi(%ld): Register FC-4 "
2180                                     "Features failed.\n", ha->host_no));
2181                         }
2182                         if (qla2x00_rnn_id(ha)) {
2183                                 /* EMPTY */
2184                                 DEBUG2(printk("scsi(%ld): Register Node Name "
2185                                     "failed.\n", ha->host_no));
2186                         } else if (qla2x00_rsnn_nn(ha)) {
2187                                 /* EMPTY */
2188                                 DEBUG2(printk("scsi(%ld): Register Symbolic "
2189                                     "Node Name failed.\n", ha->host_no));
2190                         }
2191                 }
2192
2193                 rval = qla2x00_find_all_fabric_devs(ha, &new_fcports);
2194                 if (rval != QLA_SUCCESS)
2195                         break;
2196
2197                 /*
2198                  * Logout all previous fabric devices marked lost, except
2199                  * tape devices.
2200                  */
2201                 list_for_each_entry(fcport, &ha->fcports, list) {
2202                         if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2203                                 break;
2204
2205                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0)
2206                                 continue;
2207
2208                         if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2209                                 qla2x00_mark_device_lost(ha, fcport,
2210                                     ql2xplogiabsentdevice);
2211                                 if (fcport->loop_id != FC_NO_LOOP_ID &&
2212                                     (fcport->flags & FCF_TAPE_PRESENT) == 0 &&
2213                                     fcport->port_type != FCT_INITIATOR &&
2214                                     fcport->port_type != FCT_BROADCAST) {
2215
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                 if (swl)
2352                         kfree(swl);
2353                 return (QLA_MEMORY_ALLOC_FAILED);
2354         }
2355         new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
2356
2357         /* Set start port ID scan at adapter ID. */
2358         first_dev = 1;
2359         last_dev = 0;
2360
2361         /* Starting free loop ID. */
2362         loop_id = ha->min_external_loopid;
2363         for (; loop_id <= ha->last_loop_id; loop_id++) {
2364                 if (qla2x00_is_reserved_id(ha, loop_id))
2365                         continue;
2366
2367                 if (atomic_read(&ha->loop_down_timer) ||
2368                     test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2369                         break;
2370
2371                 if (swl != NULL) {
2372                         if (last_dev) {
2373                                 wrap.b24 = new_fcport->d_id.b24;
2374                         } else {
2375                                 new_fcport->d_id.b24 = swl[swl_idx].d_id.b24;
2376                                 memcpy(new_fcport->node_name,
2377                                     swl[swl_idx].node_name, WWN_SIZE);
2378                                 memcpy(new_fcport->port_name,
2379                                     swl[swl_idx].port_name, WWN_SIZE);
2380
2381                                 if (swl[swl_idx].d_id.b.rsvd_1 != 0) {
2382                                         last_dev = 1;
2383                                 }
2384                                 swl_idx++;
2385                         }
2386                 } else {
2387                         /* Send GA_NXT to the switch */
2388                         rval = qla2x00_ga_nxt(ha, new_fcport);
2389                         if (rval != QLA_SUCCESS) {
2390                                 qla_printk(KERN_WARNING, ha,
2391                                     "SNS scan failed -- assuming zero-entry "
2392                                     "result...\n");
2393                                 list_for_each_entry_safe(fcport, fcptemp,
2394                                     new_fcports, list) {
2395                                         list_del(&fcport->list);
2396                                         kfree(fcport);
2397                                 }
2398                                 rval = QLA_SUCCESS;
2399                                 break;
2400                         }
2401                 }
2402
2403                 /* If wrap on switch device list, exit. */
2404                 if (first_dev) {
2405                         wrap.b24 = new_fcport->d_id.b24;
2406                         first_dev = 0;
2407                 } else if (new_fcport->d_id.b24 == wrap.b24) {
2408                         DEBUG2(printk("scsi(%ld): device wrap (%02x%02x%02x)\n",
2409                             ha->host_no, new_fcport->d_id.b.domain,
2410                             new_fcport->d_id.b.area, new_fcport->d_id.b.al_pa));
2411                         break;
2412                 }
2413
2414                 /* Bypass if host adapter. */
2415                 if (new_fcport->d_id.b24 == ha->d_id.b24)
2416                         continue;
2417
2418                 /* Bypass if same domain and area of adapter. */
2419                 if (((new_fcport->d_id.b24 & 0xffff00) ==
2420                     (ha->d_id.b24 & 0xffff00)) && ha->current_topology ==
2421                         ISP_CFG_FL)
2422                             continue;
2423
2424                 /* Bypass reserved domain fields. */
2425                 if ((new_fcport->d_id.b.domain & 0xf0) == 0xf0)
2426                         continue;
2427
2428                 /* Locate matching device in database. */
2429                 found = 0;
2430                 list_for_each_entry(fcport, &ha->fcports, list) {
2431                         if (memcmp(new_fcport->port_name, fcport->port_name,
2432                             WWN_SIZE))
2433                                 continue;
2434
2435                         found++;
2436
2437                         /*
2438                          * If address the same and state FCS_ONLINE, nothing
2439                          * changed.
2440                          */
2441                         if (fcport->d_id.b24 == new_fcport->d_id.b24 &&
2442                             atomic_read(&fcport->state) == FCS_ONLINE) {
2443                                 break;
2444                         }
2445
2446                         /*
2447                          * If device was not a fabric device before.
2448                          */
2449                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) {
2450                                 fcport->d_id.b24 = new_fcport->d_id.b24;
2451                                 fcport->loop_id = FC_NO_LOOP_ID;
2452                                 fcport->flags |= (FCF_FABRIC_DEVICE |
2453                                     FCF_LOGIN_NEEDED);
2454                                 fcport->flags &= ~FCF_PERSISTENT_BOUND;
2455                                 break;
2456                         }
2457
2458                         /*
2459                          * Port ID changed or device was marked to be updated;
2460                          * Log it out if still logged in and mark it for
2461                          * relogin later.
2462                          */
2463                         fcport->d_id.b24 = new_fcport->d_id.b24;
2464                         fcport->flags |= FCF_LOGIN_NEEDED;
2465                         if (fcport->loop_id != FC_NO_LOOP_ID &&
2466                             (fcport->flags & FCF_TAPE_PRESENT) == 0 &&
2467                             fcport->port_type != FCT_INITIATOR &&
2468                             fcport->port_type != FCT_BROADCAST) {
2469                                 ha->isp_ops.fabric_logout(ha, fcport->loop_id,
2470                                     fcport->d_id.b.domain, fcport->d_id.b.area,
2471                                     fcport->d_id.b.al_pa);
2472                                 fcport->loop_id = FC_NO_LOOP_ID;
2473                         }
2474
2475                         break;
2476                 }
2477
2478                 if (found)
2479                         continue;
2480
2481                 /* If device was not in our fcports list, then add it. */
2482                 list_add_tail(&new_fcport->list, new_fcports);
2483
2484                 /* Allocate a new replacement fcport. */
2485                 nxt_d_id.b24 = new_fcport->d_id.b24;
2486                 new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
2487                 if (new_fcport == NULL) {
2488                         if (swl)
2489                                 kfree(swl);
2490                         return (QLA_MEMORY_ALLOC_FAILED);
2491                 }
2492                 new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
2493                 new_fcport->d_id.b24 = nxt_d_id.b24;
2494         }
2495
2496         if (swl)
2497                 kfree(swl);
2498
2499         if (new_fcport)
2500                 kfree(new_fcport);
2501
2502         if (!list_empty(new_fcports))
2503                 ha->device_flags |= DFLG_FABRIC_DEVICES;
2504
2505         return (rval);
2506 }
2507
2508 /*
2509  * qla2x00_find_new_loop_id
2510  *      Scan through our port list and find a new usable loop ID.
2511  *
2512  * Input:
2513  *      ha:     adapter state pointer.
2514  *      dev:    port structure pointer.
2515  *
2516  * Returns:
2517  *      qla2x00 local function return status code.
2518  *
2519  * Context:
2520  *      Kernel context.
2521  */
2522 int
2523 qla2x00_find_new_loop_id(scsi_qla_host_t *ha, fc_port_t *dev)
2524 {
2525         int     rval;
2526         int     found;
2527         fc_port_t *fcport;
2528         uint16_t first_loop_id;
2529
2530         rval = QLA_SUCCESS;
2531
2532         /* Save starting loop ID. */
2533         first_loop_id = dev->loop_id;
2534
2535         for (;;) {
2536                 /* Skip loop ID if already used by adapter. */
2537                 if (dev->loop_id == ha->loop_id) {
2538                         dev->loop_id++;
2539                 }
2540
2541                 /* Skip reserved loop IDs. */
2542                 while (qla2x00_is_reserved_id(ha, dev->loop_id)) {
2543                         dev->loop_id++;
2544                 }
2545
2546                 /* Reset loop ID if passed the end. */
2547                 if (dev->loop_id > ha->last_loop_id) {
2548                         /* first loop ID. */
2549                         dev->loop_id = ha->min_external_loopid;
2550                 }
2551
2552                 /* Check for loop ID being already in use. */
2553                 found = 0;
2554                 fcport = NULL;
2555                 list_for_each_entry(fcport, &ha->fcports, list) {
2556                         if (fcport->loop_id == dev->loop_id && fcport != dev) {
2557                                 /* ID possibly in use */
2558                                 found++;
2559                                 break;
2560                         }
2561                 }
2562
2563                 /* If not in use then it is free to use. */
2564                 if (!found) {
2565                         break;
2566                 }
2567
2568                 /* ID in use. Try next value. */
2569                 dev->loop_id++;
2570
2571                 /* If wrap around. No free ID to use. */
2572                 if (dev->loop_id == first_loop_id) {
2573                         dev->loop_id = FC_NO_LOOP_ID;
2574                         rval = QLA_FUNCTION_FAILED;
2575                         break;
2576                 }
2577         }
2578
2579         return (rval);
2580 }
2581
2582 /*
2583  * qla2x00_device_resync
2584  *      Marks devices in the database that needs resynchronization.
2585  *
2586  * Input:
2587  *      ha = adapter block pointer.
2588  *
2589  * Context:
2590  *      Kernel context.
2591  */
2592 static int
2593 qla2x00_device_resync(scsi_qla_host_t *ha)
2594 {
2595         int     rval;
2596         int     rval2;
2597         uint32_t mask;
2598         fc_port_t *fcport;
2599         uint32_t rscn_entry;
2600         uint8_t rscn_out_iter;
2601         uint8_t format;
2602         port_id_t d_id;
2603
2604         rval = QLA_RSCNS_HANDLED;
2605
2606         while (ha->rscn_out_ptr != ha->rscn_in_ptr ||
2607             ha->flags.rscn_queue_overflow) {
2608
2609                 rscn_entry = ha->rscn_queue[ha->rscn_out_ptr];
2610                 format = MSB(MSW(rscn_entry));
2611                 d_id.b.domain = LSB(MSW(rscn_entry));
2612                 d_id.b.area = MSB(LSW(rscn_entry));
2613                 d_id.b.al_pa = LSB(LSW(rscn_entry));
2614
2615                 DEBUG(printk("scsi(%ld): RSCN queue entry[%d] = "
2616                     "[%02x/%02x%02x%02x].\n",
2617                     ha->host_no, ha->rscn_out_ptr, format, d_id.b.domain,
2618                     d_id.b.area, d_id.b.al_pa));
2619
2620                 ha->rscn_out_ptr++;
2621                 if (ha->rscn_out_ptr == MAX_RSCN_COUNT)
2622                         ha->rscn_out_ptr = 0;
2623
2624                 /* Skip duplicate entries. */
2625                 for (rscn_out_iter = ha->rscn_out_ptr;
2626                     !ha->flags.rscn_queue_overflow &&
2627                     rscn_out_iter != ha->rscn_in_ptr;
2628                     rscn_out_iter = (rscn_out_iter ==
2629                         (MAX_RSCN_COUNT - 1)) ? 0: rscn_out_iter + 1) {
2630
2631                         if (rscn_entry != ha->rscn_queue[rscn_out_iter])
2632                                 break;
2633
2634                         DEBUG(printk("scsi(%ld): Skipping duplicate RSCN queue "
2635                             "entry found at [%d].\n", ha->host_no,
2636                             rscn_out_iter));
2637
2638                         ha->rscn_out_ptr = rscn_out_iter;
2639                 }
2640
2641                 /* Queue overflow, set switch default case. */
2642                 if (ha->flags.rscn_queue_overflow) {
2643                         DEBUG(printk("scsi(%ld): device_resync: rscn "
2644                             "overflow.\n", ha->host_no));
2645
2646                         format = 3;
2647                         ha->flags.rscn_queue_overflow = 0;
2648                 }
2649
2650                 switch (format) {
2651                 case 0:
2652                         if (!IS_QLA2100(ha) && !IS_QLA2200(ha) &&
2653                             !IS_QLA6312(ha) && !IS_QLA6322(ha) &&
2654                             !IS_QLA24XX(ha) && !IS_QLA25XX(ha) &&
2655                             ha->flags.init_done) {
2656                                 /* Handle port RSCN via asyncronous IOCBs */
2657                                 rval2 = qla2x00_handle_port_rscn(ha, rscn_entry,
2658                                     NULL, 0);
2659                                 if (rval2 == QLA_SUCCESS)
2660                                         continue;
2661                         }
2662                         mask = 0xffffff;
2663                         break;
2664                 case 1:
2665                         mask = 0xffff00;
2666                         break;
2667                 case 2:
2668                         mask = 0xff0000;
2669                         break;
2670                 default:
2671                         mask = 0x0;
2672                         d_id.b24 = 0;
2673                         ha->rscn_out_ptr = ha->rscn_in_ptr;
2674                         break;
2675                 }
2676
2677                 rval = QLA_SUCCESS;
2678
2679                 /* Abort any outstanding IO descriptors. */
2680                 if (!IS_QLA2100(ha) && !IS_QLA2200(ha))
2681                         qla2x00_cancel_io_descriptors(ha);
2682
2683                 list_for_each_entry(fcport, &ha->fcports, list) {
2684                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 ||
2685                             (fcport->d_id.b24 & mask) != d_id.b24 ||
2686                             fcport->port_type == FCT_BROADCAST)
2687                                 continue;
2688
2689                         if (atomic_read(&fcport->state) == FCS_ONLINE) {
2690                                 if (format != 3 ||
2691                                     fcport->port_type != FCT_INITIATOR) {
2692                                         qla2x00_mark_device_lost(ha, fcport, 0);
2693                                 }
2694                         }
2695                         fcport->flags &= ~FCF_FARP_DONE;
2696                 }
2697         }
2698         return (rval);
2699 }
2700
2701 /*
2702  * qla2x00_fabric_dev_login
2703  *      Login fabric target device and update FC port database.
2704  *
2705  * Input:
2706  *      ha:             adapter state pointer.
2707  *      fcport:         port structure list pointer.
2708  *      next_loopid:    contains value of a new loop ID that can be used
2709  *                      by the next login attempt.
2710  *
2711  * Returns:
2712  *      qla2x00 local function return status code.
2713  *
2714  * Context:
2715  *      Kernel context.
2716  */
2717 static int
2718 qla2x00_fabric_dev_login(scsi_qla_host_t *ha, fc_port_t *fcport,
2719     uint16_t *next_loopid)
2720 {
2721         int     rval;
2722         int     retry;
2723         uint8_t opts;
2724
2725         rval = QLA_SUCCESS;
2726         retry = 0;
2727
2728         rval = qla2x00_fabric_login(ha, fcport, next_loopid);
2729         if (rval == QLA_SUCCESS) {
2730                 /* Send an ADISC to tape devices.*/
2731                 opts = 0;
2732                 if (fcport->flags & FCF_TAPE_PRESENT)
2733                         opts |= BIT_1;
2734                 rval = qla2x00_get_port_database(ha, fcport, opts);
2735                 if (rval != QLA_SUCCESS) {
2736                         ha->isp_ops.fabric_logout(ha, fcport->loop_id,
2737                             fcport->d_id.b.domain, fcport->d_id.b.area,
2738                             fcport->d_id.b.al_pa);
2739                         qla2x00_mark_device_lost(ha, fcport, 1);
2740
2741                 } else {
2742                         qla2x00_update_fcport(ha, fcport);
2743                 }
2744         }
2745
2746         return (rval);
2747 }
2748
2749 /*
2750  * qla2x00_fabric_login
2751  *      Issue fabric login command.
2752  *
2753  * Input:
2754  *      ha = adapter block pointer.
2755  *      device = pointer to FC device type structure.
2756  *
2757  * Returns:
2758  *      0 - Login successfully
2759  *      1 - Login failed
2760  *      2 - Initiator device
2761  *      3 - Fatal error
2762  */
2763 int
2764 qla2x00_fabric_login(scsi_qla_host_t *ha, fc_port_t *fcport,
2765     uint16_t *next_loopid)
2766 {
2767         int     rval;
2768         int     retry;
2769         uint16_t tmp_loopid;
2770         uint16_t mb[MAILBOX_REGISTER_COUNT];
2771
2772         retry = 0;
2773         tmp_loopid = 0;
2774
2775         for (;;) {
2776                 DEBUG(printk("scsi(%ld): Trying Fabric Login w/loop id 0x%04x "
2777                     "for port %02x%02x%02x.\n",
2778                     ha->host_no, fcport->loop_id, fcport->d_id.b.domain,
2779                     fcport->d_id.b.area, fcport->d_id.b.al_pa));
2780
2781                 /* Login fcport on switch. */
2782                 ha->isp_ops.fabric_login(ha, fcport->loop_id,
2783                     fcport->d_id.b.domain, fcport->d_id.b.area,
2784                     fcport->d_id.b.al_pa, mb, BIT_0);
2785                 if (mb[0] == MBS_PORT_ID_USED) {
2786                         /*
2787                          * Device has another loop ID.  The firmware team
2788                          * recommends the driver perform an implicit login with
2789                          * the specified ID again. The ID we just used is save
2790                          * here so we return with an ID that can be tried by
2791                          * the next login.
2792                          */
2793                         retry++;
2794                         tmp_loopid = fcport->loop_id;
2795                         fcport->loop_id = mb[1];
2796
2797                         DEBUG(printk("Fabric Login: port in use - next "
2798                             "loop id=0x%04x, port Id=%02x%02x%02x.\n",
2799                             fcport->loop_id, fcport->d_id.b.domain,
2800                             fcport->d_id.b.area, fcport->d_id.b.al_pa));
2801
2802                 } else if (mb[0] == MBS_COMMAND_COMPLETE) {
2803                         /*
2804                          * Login succeeded.
2805                          */
2806                         if (retry) {
2807                                 /* A retry occurred before. */
2808                                 *next_loopid = tmp_loopid;
2809                         } else {
2810                                 /*
2811                                  * No retry occurred before. Just increment the
2812                                  * ID value for next login.
2813                                  */
2814                                 *next_loopid = (fcport->loop_id + 1);
2815                         }
2816
2817                         if (mb[1] & BIT_0) {
2818                                 fcport->port_type = FCT_INITIATOR;
2819                         } else {
2820                                 fcport->port_type = FCT_TARGET;
2821                                 if (mb[1] & BIT_1) {
2822                                         fcport->flags |= FCF_TAPE_PRESENT;
2823                                 }
2824                         }
2825
2826                         if (mb[10] & BIT_0)
2827                                 fcport->supported_classes |= FC_COS_CLASS2;
2828                         if (mb[10] & BIT_1)
2829                                 fcport->supported_classes |= FC_COS_CLASS3;
2830
2831                         rval = QLA_SUCCESS;
2832                         break;
2833                 } else if (mb[0] == MBS_LOOP_ID_USED) {
2834                         /*
2835                          * Loop ID already used, try next loop ID.
2836                          */
2837                         fcport->loop_id++;
2838                         rval = qla2x00_find_new_loop_id(ha, fcport);
2839                         if (rval != QLA_SUCCESS) {
2840                                 /* Ran out of loop IDs to use */
2841                                 break;
2842                         }
2843                 } else if (mb[0] == MBS_COMMAND_ERROR) {
2844                         /*
2845                          * Firmware possibly timed out during login. If NO
2846                          * retries are left to do then the device is declared
2847                          * dead.
2848                          */
2849                         *next_loopid = fcport->loop_id;
2850                         ha->isp_ops.fabric_logout(ha, fcport->loop_id,
2851                             fcport->d_id.b.domain, fcport->d_id.b.area,
2852                             fcport->d_id.b.al_pa);
2853                         qla2x00_mark_device_lost(ha, fcport, 1);
2854
2855                         rval = 1;
2856                         break;
2857                 } else {
2858                         /*
2859                          * unrecoverable / not handled error
2860                          */
2861                         DEBUG2(printk("%s(%ld): failed=%x port_id=%02x%02x%02x "
2862                             "loop_id=%x jiffies=%lx.\n",
2863                             __func__, ha->host_no, mb[0],
2864                             fcport->d_id.b.domain, fcport->d_id.b.area,
2865                             fcport->d_id.b.al_pa, fcport->loop_id, jiffies));
2866
2867                         *next_loopid = fcport->loop_id;
2868                         ha->isp_ops.fabric_logout(ha, fcport->loop_id,
2869                             fcport->d_id.b.domain, fcport->d_id.b.area,
2870                             fcport->d_id.b.al_pa);
2871                         fcport->loop_id = FC_NO_LOOP_ID;
2872                         fcport->login_retry = 0;
2873
2874                         rval = 3;
2875                         break;
2876                 }
2877         }
2878
2879         return (rval);
2880 }
2881
2882 /*
2883  * qla2x00_local_device_login
2884  *      Issue local device login command.
2885  *
2886  * Input:
2887  *      ha = adapter block pointer.
2888  *      loop_id = loop id of device to login to.
2889  *
2890  * Returns (Where's the #define!!!!):
2891  *      0 - Login successfully
2892  *      1 - Login failed
2893  *      3 - Fatal error
2894  */
2895 int
2896 qla2x00_local_device_login(scsi_qla_host_t *ha, uint16_t loop_id)
2897 {
2898         int             rval;
2899         uint16_t        mb[MAILBOX_REGISTER_COUNT];
2900
2901         memset(mb, 0, sizeof(mb));
2902         rval = qla2x00_login_local_device(ha, loop_id, mb, BIT_0);
2903         if (rval == QLA_SUCCESS) {
2904                 /* Interrogate mailbox registers for any errors */
2905                 if (mb[0] == MBS_COMMAND_ERROR)
2906                         rval = 1;
2907                 else if (mb[0] == MBS_COMMAND_PARAMETER_ERROR)
2908                         /* device not in PCB table */
2909                         rval = 3;
2910         }
2911
2912         return (rval);
2913 }
2914
2915 /*
2916  *  qla2x00_loop_resync
2917  *      Resync with fibre channel devices.
2918  *
2919  * Input:
2920  *      ha = adapter block pointer.
2921  *
2922  * Returns:
2923  *      0 = success
2924  */
2925 int
2926 qla2x00_loop_resync(scsi_qla_host_t *ha)
2927 {
2928         int   rval;
2929         uint32_t wait_time;
2930
2931         rval = QLA_SUCCESS;
2932
2933         atomic_set(&ha->loop_state, LOOP_UPDATE);
2934         clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
2935         if (ha->flags.online) {
2936                 if (!(rval = qla2x00_fw_ready(ha))) {
2937                         /* Wait at most MAX_TARGET RSCNs for a stable link. */
2938                         wait_time = 256;
2939                         do {
2940                                 atomic_set(&ha->loop_state, LOOP_UPDATE);
2941
2942                                 /* Issue a marker after FW becomes ready. */
2943                                 qla2x00_marker(ha, 0, 0, MK_SYNC_ALL);
2944                                 ha->marker_needed = 0;
2945
2946                                 /* Remap devices on Loop. */
2947                                 clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2948
2949                                 qla2x00_configure_loop(ha);
2950                                 wait_time--;
2951                         } while (!atomic_read(&ha->loop_down_timer) &&
2952                                 !(test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) &&
2953                                 wait_time &&
2954                                 (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)));
2955                 }
2956         }
2957
2958         if (test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2959                 return (QLA_FUNCTION_FAILED);
2960         }
2961
2962         if (rval) {
2963                 DEBUG2_3(printk("%s(): **** FAILED ****\n", __func__));
2964         }
2965
2966         return (rval);
2967 }
2968
2969 void
2970 qla2x00_rescan_fcports(scsi_qla_host_t *ha)
2971 {
2972         int rescan_done;
2973         fc_port_t *fcport;
2974
2975         rescan_done = 0;
2976         list_for_each_entry(fcport, &ha->fcports, list) {
2977                 if ((fcport->flags & FCF_RESCAN_NEEDED) == 0)
2978                         continue;
2979
2980                 qla2x00_update_fcport(ha, fcport);
2981                 fcport->flags &= ~FCF_RESCAN_NEEDED;
2982
2983                 rescan_done = 1;
2984         }
2985         qla2x00_probe_for_all_luns(ha);
2986 }
2987
2988 /*
2989 *  qla2x00_abort_isp
2990 *      Resets ISP and aborts all outstanding commands.
2991 *
2992 * Input:
2993 *      ha           = adapter block pointer.
2994 *
2995 * Returns:
2996 *      0 = success
2997 */
2998 int
2999 qla2x00_abort_isp(scsi_qla_host_t *ha)
3000 {
3001         unsigned long flags = 0;
3002         uint16_t       cnt;
3003         srb_t          *sp;
3004         uint8_t        status = 0;
3005
3006         if (ha->flags.online) {
3007                 ha->flags.online = 0;
3008                 clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
3009
3010                 qla_printk(KERN_INFO, ha,
3011                     "Performing ISP error recovery - ha= %p.\n", ha);
3012                 ha->isp_ops.reset_chip(ha);
3013
3014                 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
3015                 if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
3016                         atomic_set(&ha->loop_state, LOOP_DOWN);
3017                         qla2x00_mark_all_devices_lost(ha);
3018                 } else {
3019                         if (!atomic_read(&ha->loop_down_timer))
3020                                 atomic_set(&ha->loop_down_timer,
3021                                     LOOP_DOWN_TIME);
3022                 }
3023
3024                 spin_lock_irqsave(&ha->hardware_lock, flags);
3025                 /* Requeue all commands in outstanding command list. */
3026                 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
3027                         sp = ha->outstanding_cmds[cnt];
3028                         if (sp) {
3029                                 ha->outstanding_cmds[cnt] = NULL;
3030                                 sp->flags = 0;
3031                                 sp->cmd->result = DID_RESET << 16;
3032                                 sp->cmd->host_scribble = (unsigned char *)NULL;
3033                                 qla2x00_sp_compl(ha, sp);
3034                         }
3035                 }
3036                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3037
3038                 ha->isp_ops.nvram_config(ha);
3039
3040                 if (!qla2x00_restart_isp(ha)) {
3041                         clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
3042
3043                         if (!atomic_read(&ha->loop_down_timer)) {
3044                                 /*
3045                                  * Issue marker command only when we are going
3046                                  * to start the I/O .
3047                                  */
3048                                 ha->marker_needed = 1;
3049                         }
3050
3051                         ha->flags.online = 1;
3052
3053                         ha->isp_ops.enable_intrs(ha);
3054
3055                         ha->isp_abort_cnt = 0;
3056                         clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
3057                 } else {        /* failed the ISP abort */
3058                         ha->flags.online = 1;
3059                         if (test_bit(ISP_ABORT_RETRY, &ha->dpc_flags)) {
3060                                 if (ha->isp_abort_cnt == 0) {
3061                                         qla_printk(KERN_WARNING, ha,
3062                                             "ISP error recovery failed - "
3063                                             "board disabled\n");
3064                                         /*
3065                                          * The next call disables the board
3066                                          * completely.
3067                                          */
3068                                         ha->isp_ops.reset_adapter(ha);
3069                                         ha->flags.online = 0;
3070                                         clear_bit(ISP_ABORT_RETRY,
3071                                             &ha->dpc_flags);
3072                                         status = 0;
3073                                 } else { /* schedule another ISP abort */
3074                                         ha->isp_abort_cnt--;
3075                                         DEBUG(printk("qla%ld: ISP abort - "
3076                                             "retry remaining %d\n",
3077                                             ha->host_no, ha->isp_abort_cnt);)
3078                                         status = 1;
3079                                 }
3080                         } else {
3081                                 ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT;
3082                                 DEBUG(printk("qla2x00(%ld): ISP error recovery "
3083                                     "- retrying (%d) more times\n",
3084                                     ha->host_no, ha->isp_abort_cnt);)
3085                                 set_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
3086                                 status = 1;
3087                         }
3088                 }
3089
3090         }
3091
3092         if (status) {
3093                 qla_printk(KERN_INFO, ha,
3094                         "qla2x00_abort_isp: **** FAILED ****\n");
3095         } else {
3096                 DEBUG(printk(KERN_INFO
3097                                 "qla2x00_abort_isp(%ld): exiting.\n",
3098                                 ha->host_no);)
3099         }
3100
3101         return(status);
3102 }
3103
3104 /*
3105 *  qla2x00_restart_isp
3106 *      restarts the ISP after a reset
3107 *
3108 * Input:
3109 *      ha = adapter block pointer.
3110 *
3111 * Returns:
3112 *      0 = success
3113 */
3114 static int
3115 qla2x00_restart_isp(scsi_qla_host_t *ha)
3116 {
3117         uint8_t         status = 0;
3118         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3119         unsigned long   flags = 0;
3120         uint32_t wait_time;
3121
3122         /* If firmware needs to be loaded */
3123         if (qla2x00_isp_firmware(ha)) {
3124                 ha->flags.online = 0;
3125                 if (!(status = ha->isp_ops.chip_diag(ha))) {
3126                         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
3127                                 status = qla2x00_setup_chip(ha);
3128                                 goto done;
3129                         }
3130
3131                         spin_lock_irqsave(&ha->hardware_lock, flags);
3132
3133                         if (!IS_QLA24XX(ha) && !IS_QLA25XX(ha)) {
3134                                 /*
3135                                  * Disable SRAM, Instruction RAM and GP RAM
3136                                  * parity.
3137                                  */
3138                                 WRT_REG_WORD(&reg->hccr,
3139                                     (HCCR_ENABLE_PARITY + 0x0));
3140                                 RD_REG_WORD(&reg->hccr);
3141                         }
3142
3143                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3144
3145                         status = qla2x00_setup_chip(ha);
3146
3147                         spin_lock_irqsave(&ha->hardware_lock, flags);
3148
3149                         if (!IS_QLA24XX(ha) && !IS_QLA25XX(ha)) {
3150                                 /* Enable proper parity */
3151                                 if (IS_QLA2300(ha))
3152                                         /* SRAM parity */
3153                                         WRT_REG_WORD(&reg->hccr,
3154                                             (HCCR_ENABLE_PARITY + 0x1));
3155                                 else
3156                                         /*
3157                                          * SRAM, Instruction RAM and GP RAM
3158                                          * parity.
3159                                          */
3160                                         WRT_REG_WORD(&reg->hccr,
3161                                             (HCCR_ENABLE_PARITY + 0x7));
3162                                 RD_REG_WORD(&reg->hccr);
3163                         }
3164
3165                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3166                 }
3167         }
3168
3169  done:
3170         if (!status && !(status = qla2x00_init_rings(ha))) {
3171                 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
3172                 if (!(status = qla2x00_fw_ready(ha))) {
3173                         DEBUG(printk("%s(): Start configure loop, "
3174                             "status = %d\n", __func__, status);)
3175
3176                         /* Issue a marker after FW becomes ready. */
3177                         qla2x00_marker(ha, 0, 0, MK_SYNC_ALL);
3178
3179                         ha->flags.online = 1;
3180                         /* Wait at most MAX_TARGET RSCNs for a stable link. */
3181                         wait_time = 256;
3182                         do {
3183                                 clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
3184                                 qla2x00_configure_loop(ha);
3185                                 wait_time--;
3186                         } while (!atomic_read(&ha->loop_down_timer) &&
3187                                 !(test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) &&
3188                                 wait_time &&
3189                                 (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)));
3190                 }
3191
3192                 /* if no cable then assume it's good */
3193                 if ((ha->device_flags & DFLG_NO_CABLE))
3194                         status = 0;
3195
3196                 DEBUG(printk("%s(): Configure loop done, status = 0x%x\n",
3197                                 __func__,
3198                                 status);)
3199         }
3200         return (status);
3201 }
3202
3203 /*
3204 * qla2x00_reset_adapter
3205 *      Reset adapter.
3206 *
3207 * Input:
3208 *      ha = adapter block pointer.
3209 */
3210 void
3211 qla2x00_reset_adapter(scsi_qla_host_t *ha)
3212 {
3213         unsigned long flags = 0;
3214         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3215
3216         ha->flags.online = 0;
3217         ha->isp_ops.disable_intrs(ha);
3218
3219         spin_lock_irqsave(&ha->hardware_lock, flags);
3220         WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
3221         RD_REG_WORD(&reg->hccr);                        /* PCI Posting. */
3222         WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
3223         RD_REG_WORD(&reg->hccr);                        /* PCI Posting. */
3224         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3225 }
3226
3227 void
3228 qla24xx_reset_adapter(scsi_qla_host_t *ha)
3229 {
3230         unsigned long flags = 0;
3231         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
3232
3233         ha->flags.online = 0;
3234         ha->isp_ops.disable_intrs(ha);
3235
3236         spin_lock_irqsave(&ha->hardware_lock, flags);
3237         WRT_REG_DWORD(&reg->hccr, HCCRX_SET_RISC_RESET);
3238         RD_REG_DWORD(&reg->hccr);
3239         WRT_REG_DWORD(&reg->hccr, HCCRX_REL_RISC_PAUSE);
3240         RD_REG_DWORD(&reg->hccr);
3241         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3242 }
3243
3244 int
3245 qla24xx_nvram_config(scsi_qla_host_t *ha)
3246 {
3247         int   rval;
3248         struct init_cb_24xx *icb;
3249         struct nvram_24xx *nv;
3250         uint32_t *dptr;
3251         uint8_t  *dptr1, *dptr2;
3252         uint32_t chksum;
3253         uint16_t cnt;
3254
3255         rval = QLA_SUCCESS;
3256         icb = (struct init_cb_24xx *)ha->init_cb;
3257         nv = (struct nvram_24xx *)ha->request_ring;
3258
3259         /* Determine NVRAM starting address. */
3260         ha->nvram_size = sizeof(struct nvram_24xx);
3261         ha->nvram_base = FA_NVRAM_FUNC0_ADDR;
3262         if (PCI_FUNC(ha->pdev->devfn))
3263                 ha->nvram_base = FA_NVRAM_FUNC1_ADDR;
3264
3265         /* Get NVRAM data and calculate checksum. */
3266         dptr = (uint32_t *)nv;
3267         ha->isp_ops.read_nvram(ha, (uint8_t *)dptr, ha->nvram_base,
3268             ha->nvram_size);
3269         for (cnt = 0, chksum = 0; cnt < ha->nvram_size >> 2; cnt++)
3270                 chksum += le32_to_cpu(*dptr++);
3271
3272         DEBUG5(printk("scsi(%ld): Contents of NVRAM\n", ha->host_no));
3273         DEBUG5(qla2x00_dump_buffer((uint8_t *)ha->request_ring,
3274             ha->nvram_size));
3275
3276         /* Bad NVRAM data, set defaults parameters. */
3277         if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' || nv->id[2] != 'P'
3278             || nv->id[3] != ' ' ||
3279             nv->nvram_version < __constant_cpu_to_le16(ICB_VERSION)) {
3280                 /* Reset NVRAM data. */
3281                 qla_printk(KERN_WARNING, ha, "Inconsistent NVRAM detected: "
3282                     "checksum=0x%x id=%c version=0x%x.\n", chksum, nv->id[0],
3283                     le16_to_cpu(nv->nvram_version));
3284                 qla_printk(KERN_WARNING, ha, "Falling back to functioning (yet "
3285                     "invalid -- WWPN) defaults.\n");
3286
3287                 /*
3288                  * Set default initialization control block.
3289                  */
3290                 memset(nv, 0, ha->nvram_size);
3291                 nv->nvram_version = __constant_cpu_to_le16(ICB_VERSION);
3292                 nv->version = __constant_cpu_to_le16(ICB_VERSION);
3293                 nv->frame_payload_size = __constant_cpu_to_le16(2048);
3294                 nv->execution_throttle = __constant_cpu_to_le16(0xFFFF);
3295                 nv->exchange_count = __constant_cpu_to_le16(0);
3296                 nv->hard_address = __constant_cpu_to_le16(124);
3297                 nv->port_name[0] = 0x21;
3298                 nv->port_name[1] = 0x00 + PCI_FUNC(ha->pdev->devfn);
3299                 nv->port_name[2] = 0x00;
3300                 nv->port_name[3] = 0xe0;
3301                 nv->port_name[4] = 0x8b;
3302                 nv->port_name[5] = 0x1c;
3303                 nv->port_name[6] = 0x55;
3304                 nv->port_name[7] = 0x86;
3305                 nv->node_name[0] = 0x20;
3306                 nv->node_name[1] = 0x00;
3307                 nv->node_name[2] = 0x00;
3308                 nv->node_name[3] = 0xe0;
3309                 nv->node_name[4] = 0x8b;
3310                 nv->node_name[5] = 0x1c;
3311                 nv->node_name[6] = 0x55;
3312                 nv->node_name[7] = 0x86;
3313                 nv->login_retry_count = __constant_cpu_to_le16(8);
3314                 nv->link_down_timeout = __constant_cpu_to_le16(200);
3315                 nv->interrupt_delay_timer = __constant_cpu_to_le16(0);
3316                 nv->login_timeout = __constant_cpu_to_le16(0);
3317                 nv->firmware_options_1 =
3318                     __constant_cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1);
3319                 nv->firmware_options_2 = __constant_cpu_to_le32(2 << 4);
3320                 nv->firmware_options_2 |= __constant_cpu_to_le32(BIT_12);
3321                 nv->firmware_options_3 = __constant_cpu_to_le32(2 << 13);
3322                 nv->host_p = __constant_cpu_to_le32(BIT_11|BIT_10);
3323                 nv->efi_parameters = __constant_cpu_to_le32(0);
3324                 nv->reset_delay = 5;
3325                 nv->max_luns_per_target = __constant_cpu_to_le16(128);
3326                 nv->port_down_retry_count = __constant_cpu_to_le16(30);
3327                 nv->link_down_timeout = __constant_cpu_to_le16(30);
3328
3329                 rval = 1;
3330         }
3331
3332         /* Reset Initialization control block */
3333         memset(icb, 0, sizeof(struct init_cb_24xx));
3334
3335         /* Copy 1st segment. */
3336         dptr1 = (uint8_t *)icb;
3337         dptr2 = (uint8_t *)&nv->version;
3338         cnt = (uint8_t *)&icb->response_q_inpointer - (uint8_t *)&icb->version;
3339         while (cnt--)
3340                 *dptr1++ = *dptr2++;
3341
3342         icb->login_retry_count = nv->login_retry_count;
3343         icb->link_down_timeout = nv->link_down_timeout;
3344
3345         /* Copy 2nd segment. */
3346         dptr1 = (uint8_t *)&icb->interrupt_delay_timer;
3347         dptr2 = (uint8_t *)&nv->interrupt_delay_timer;
3348         cnt = (uint8_t *)&icb->reserved_3 -
3349             (uint8_t *)&icb->interrupt_delay_timer;
3350         while (cnt--)
3351                 *dptr1++ = *dptr2++;
3352
3353         /*
3354          * Setup driver NVRAM options.
3355          */
3356         if (memcmp(nv->model_name, BINZERO, sizeof(nv->model_name)) != 0) {
3357                 char *st, *en;
3358                 uint16_t index;
3359
3360                 strncpy(ha->model_number, nv->model_name,
3361                     sizeof(nv->model_name));
3362                 st = en = ha->model_number;
3363                 en += sizeof(nv->model_name) - 1;
3364                 while (en > st) {
3365                         if (*en != 0x20 && *en != 0x00)
3366                                 break;
3367                         *en-- = '\0';
3368                 }
3369
3370                 index = (ha->pdev->subsystem_device & 0xff);
3371                 if (index < QLA_MODEL_NAMES)
3372                         ha->model_desc = qla2x00_model_desc[index];
3373         } else
3374                 strcpy(ha->model_number, "QLA2462");
3375
3376         /* Prepare nodename */
3377         if ((icb->firmware_options_1 & BIT_14) == 0) {
3378                 /*
3379                  * Firmware will apply the following mask if the nodename was
3380                  * not provided.
3381                  */
3382                 memcpy(icb->node_name, icb->port_name, WWN_SIZE);
3383                 icb->node_name[0] &= 0xF0;
3384         }
3385
3386         /* Set host adapter parameters. */
3387         ha->flags.disable_risc_code_load = 0;
3388         ha->flags.enable_lip_reset = 1;
3389         ha->flags.enable_lip_full_login = 1;
3390         ha->flags.enable_target_reset = 1;
3391         ha->flags.enable_led_scheme = 0;
3392
3393         ha->operating_mode =
3394             (icb->firmware_options_2 & (BIT_6 | BIT_5 | BIT_4)) >> 4;
3395
3396         memcpy(ha->fw_seriallink_options24, nv->seriallink_options,
3397             sizeof(ha->fw_seriallink_options24));
3398
3399         /* save HBA serial number */
3400         ha->serial0 = icb->port_name[5];
3401         ha->serial1 = icb->port_name[6];
3402         ha->serial2 = icb->port_name[7];
3403         ha->node_name = icb->node_name;
3404         ha->port_name = icb->port_name;
3405
3406         ha->retry_count = le16_to_cpu(nv->login_retry_count);
3407
3408         /* Set minimum login_timeout to 4 seconds. */
3409         if (le16_to_cpu(nv->login_timeout) < ql2xlogintimeout)
3410                 nv->login_timeout = cpu_to_le16(ql2xlogintimeout);
3411         if (le16_to_cpu(nv->login_timeout) < 4)
3412                 nv->login_timeout = __constant_cpu_to_le16(4);
3413         ha->login_timeout = le16_to_cpu(nv->login_timeout);
3414         icb->login_timeout = cpu_to_le16(nv->login_timeout);
3415
3416         /* Set minimum RATOV to 200 tenths of a second. */
3417         ha->r_a_tov = 200;
3418
3419         ha->loop_reset_delay = nv->reset_delay;
3420
3421         /* Link Down Timeout = 0:
3422          *
3423          *      When Port Down timer expires we will start returning
3424          *      I/O's to OS with "DID_NO_CONNECT".
3425          *
3426          * Link Down Timeout != 0:
3427          *
3428          *       The driver waits for the link to come up after link down
3429          *       before returning I/Os to OS with "DID_NO_CONNECT".
3430          */
3431         if (le16_to_cpu(nv->link_down_timeout) == 0) {
3432                 ha->loop_down_abort_time =
3433                     (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
3434         } else {
3435                 ha->link_down_timeout = le16_to_cpu(nv->link_down_timeout);
3436                 ha->loop_down_abort_time =
3437                     (LOOP_DOWN_TIME - ha->link_down_timeout);
3438         }
3439
3440         /* Need enough time to try and get the port back. */
3441         ha->port_down_retry_count = le16_to_cpu(nv->port_down_retry_count);
3442         if (qlport_down_retry)
3443                 ha->port_down_retry_count = qlport_down_retry;
3444
3445         /* Set login_retry_count */
3446         ha->login_retry_count  = le16_to_cpu(nv->login_retry_count);
3447         if (ha->port_down_retry_count ==
3448             le16_to_cpu(nv->port_down_retry_count) &&
3449             ha->port_down_retry_count > 3)
3450                 ha->login_retry_count = ha->port_down_retry_count;
3451         else if (ha->port_down_retry_count > (int)ha->login_retry_count)
3452                 ha->login_retry_count = ha->port_down_retry_count;
3453         if (ql2xloginretrycount)
3454                 ha->login_retry_count = ql2xloginretrycount;
3455
3456         /* Enable ZIO. */
3457         if (!ha->flags.init_done) {
3458                 ha->zio_mode = le32_to_cpu(icb->firmware_options_2) &
3459                     (BIT_3 | BIT_2 | BIT_1 | BIT_0);
3460                 ha->zio_timer = le16_to_cpu(icb->interrupt_delay_timer) ?
3461                     le16_to_cpu(icb->interrupt_delay_timer): 2;
3462         }
3463         icb->firmware_options_2 &= __constant_cpu_to_le32(
3464             ~(BIT_3 | BIT_2 | BIT_1 | BIT_0));
3465         ha->flags.process_response_queue = 0;
3466         if (ha->zio_mode != QLA_ZIO_DISABLED) {
3467                 DEBUG2(printk("scsi(%ld): ZIO mode %d enabled; timer delay "
3468                     "(%d us).\n", ha->host_no, ha->zio_mode,
3469                     ha->zio_timer * 100));
3470                 qla_printk(KERN_INFO, ha,
3471                     "ZIO mode %d enabled; timer delay (%d us).\n",
3472                     ha->zio_mode, ha->zio_timer * 100);
3473
3474                 icb->firmware_options_2 |= cpu_to_le32(
3475                     (uint32_t)ha->zio_mode);
3476                 icb->interrupt_delay_timer = cpu_to_le16(ha->zio_timer);
3477                 ha->flags.process_response_queue = 1;
3478         }
3479
3480         if (rval) {
3481                 DEBUG2_3(printk(KERN_WARNING
3482                     "scsi(%ld): NVRAM configuration failed!\n", ha->host_no));
3483         }
3484         return (rval);
3485 }
3486
3487 int
3488 qla2x00_load_risc(scsi_qla_host_t *ha, uint32_t *srisc_addr)
3489 {
3490         int             rval;
3491         uint16_t        cnt;
3492         uint16_t        *risc_code;
3493         unsigned long   risc_address;
3494         unsigned long   risc_code_size;
3495         int             num;
3496         int             i;
3497         uint16_t        *req_ring;
3498         struct qla_fw_info *fw_iter;
3499
3500         rval = QLA_SUCCESS;
3501
3502         /* Load firmware sequences */
3503         fw_iter = ha->brd_info->fw_info;
3504         *srisc_addr = *ha->brd_info->fw_info->fwstart;
3505         while (fw_iter->addressing != FW_INFO_ADDR_NOMORE) {
3506                 risc_code = fw_iter->fwcode;
3507                 risc_code_size = *fw_iter->fwlen;
3508
3509                 if (fw_iter->addressing == FW_INFO_ADDR_NORMAL) {
3510                         risc_address = *fw_iter->fwstart;
3511                 } else {
3512                         /* Extended address */
3513                         risc_address = *fw_iter->lfwstart;
3514                 }
3515
3516                 num = 0;
3517                 rval = 0;
3518                 while (risc_code_size > 0 && !rval) {
3519                         cnt = (uint16_t)(ha->fw_transfer_size >> 1);
3520                         if (cnt > risc_code_size)
3521                                 cnt = risc_code_size;
3522
3523                         DEBUG7(printk("scsi(%ld): Loading risc segment@ "
3524                             "addr %p, number of bytes 0x%x, offset 0x%lx.\n",
3525                             ha->host_no, risc_code, cnt, risc_address));
3526
3527                         req_ring = (uint16_t *)ha->request_ring;
3528                         for (i = 0; i < cnt; i++)
3529                                 req_ring[i] = cpu_to_le16(risc_code[i]);
3530
3531                         if (fw_iter->addressing == FW_INFO_ADDR_NORMAL) {
3532                                 rval = qla2x00_load_ram(ha, ha->request_dma,
3533                                     risc_address, cnt);
3534                         } else {
3535                                 rval = qla2x00_load_ram_ext(ha,
3536                                     ha->request_dma, risc_address, cnt);
3537                         }
3538                         if (rval) {
3539                                 DEBUG(printk("scsi(%ld): [ERROR] Failed to "
3540                                     "load segment %d of firmware\n",
3541                                     ha->host_no, num));
3542                                 qla_printk(KERN_WARNING, ha,
3543                                     "[ERROR] Failed to load segment %d of "
3544                                     "firmware\n", num);
3545
3546                                 qla2x00_dump_regs(ha);
3547                                 break;
3548                         }
3549
3550                         risc_code += cnt;
3551                         risc_address += cnt;
3552                         risc_code_size -= cnt;
3553                         num++;
3554                 }
3555
3556                 /* Next firmware sequence */
3557                 fw_iter++;
3558         }
3559
3560         return (rval);
3561 }
3562
3563 int
3564 qla24xx_load_risc_flash(scsi_qla_host_t *ha, uint32_t *srisc_addr)
3565 {
3566         int     rval;
3567         int     segments, fragment;
3568         uint32_t faddr;
3569         uint32_t *dcode, dlen;
3570         uint32_t risc_addr;
3571         uint32_t risc_size;
3572         uint32_t i;
3573
3574         rval = QLA_SUCCESS;
3575
3576         segments = FA_RISC_CODE_SEGMENTS;
3577         faddr = FA_RISC_CODE_ADDR;
3578         dcode = (uint32_t *)ha->request_ring;
3579         *srisc_addr = 0;
3580
3581         /* Validate firmware image by checking version. */
3582         qla24xx_read_flash_data(ha, dcode, faddr + 4, 4);
3583         for (i = 0; i < 4; i++)
3584                 dcode[i] = be32_to_cpu(dcode[i]);
3585         if ((dcode[0] == 0xffffffff && dcode[1] == 0xffffffff &&
3586             dcode[2] == 0xffffffff && dcode[3] == 0xffffffff) ||
3587             (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
3588                 dcode[3] == 0)) {
3589                 qla_printk(KERN_WARNING, ha,
3590                     "Unable to verify integrity of flash firmware image!\n");
3591                 qla_printk(KERN_WARNING, ha,
3592                     "Firmware data: %08x %08x %08x %08x!\n", dcode[0],
3593                     dcode[1], dcode[2], dcode[3]);
3594
3595                 return QLA_FUNCTION_FAILED;
3596         }
3597
3598         while (segments && rval == QLA_SUCCESS) {
3599                 /* Read segment's load information. */
3600                 qla24xx_read_flash_data(ha, dcode, faddr, 4);
3601
3602                 risc_addr = be32_to_cpu(dcode[2]);
3603                 *srisc_addr = *srisc_addr == 0 ? risc_addr : *srisc_addr;
3604                 risc_size = be32_to_cpu(dcode[3]);
3605
3606                 fragment = 0;
3607                 while (risc_size > 0 && rval == QLA_SUCCESS) {
3608                         dlen = (uint32_t)(ha->fw_transfer_size >> 2);
3609                         if (dlen > risc_size)
3610                                 dlen = risc_size;
3611
3612                         DEBUG7(printk("scsi(%ld): Loading risc segment@ risc "
3613                             "addr %x, number of dwords 0x%x, offset 0x%x.\n",
3614                             ha->host_no, risc_addr, dlen, faddr));
3615
3616                         qla24xx_read_flash_data(ha, dcode, faddr, dlen);
3617                         for (i = 0; i < dlen; i++)
3618                                 dcode[i] = swab32(dcode[i]);
3619
3620                         rval = qla2x00_load_ram_ext(ha, ha->request_dma,
3621                             risc_addr, dlen);
3622                         if (rval) {
3623                                 DEBUG(printk("scsi(%ld):[ERROR] Failed to load "
3624                                     "segment %d of firmware\n", ha->host_no,
3625                                     fragment));
3626                                 qla_printk(KERN_WARNING, ha,
3627                                     "[ERROR] Failed to load segment %d of "
3628                                     "firmware\n", fragment);
3629                                 break;
3630                         }
3631
3632                         faddr += dlen;
3633                         risc_addr += dlen;
3634                         risc_size -= dlen;
3635                         fragment++;
3636                 }
3637
3638                 /* Next segment. */
3639                 segments--;
3640         }
3641
3642         return rval;
3643 }
3644
3645 int
3646 qla24xx_load_risc_hotplug(scsi_qla_host_t *ha, uint32_t *srisc_addr)
3647 {
3648         int     rval;
3649         int     segments, fragment;
3650         uint32_t *dcode, dlen;
3651         uint32_t risc_addr;
3652         uint32_t risc_size;
3653         uint32_t i;
3654         const struct firmware *fw_entry;
3655         uint32_t *fwcode, fwclen;
3656
3657         if (request_firmware(&fw_entry, ha->brd_info->fw_fname,
3658             &ha->pdev->dev)) {
3659                 qla_printk(KERN_ERR, ha,
3660                     "Firmware image file not available: '%s'\n",
3661                     ha->brd_info->fw_fname);
3662                 return QLA_FUNCTION_FAILED;
3663         }
3664
3665         rval = QLA_SUCCESS;
3666
3667         segments = FA_RISC_CODE_SEGMENTS;
3668         dcode = (uint32_t *)ha->request_ring;
3669         *srisc_addr = 0;
3670         fwcode = (uint32_t *)fw_entry->data;
3671         fwclen = 0;
3672
3673         /* Validate firmware image by checking version. */
3674         if (fw_entry->size < 8 * sizeof(uint32_t)) {
3675                 qla_printk(KERN_WARNING, ha,
3676                     "Unable to verify integrity of flash firmware image "
3677                     "(%Zd)!\n", fw_entry->size);
3678                 goto fail_fw_integrity;
3679         }
3680         for (i = 0; i < 4; i++)
3681                 dcode[i] = be32_to_cpu(fwcode[i + 4]);
3682         if ((dcode[0] == 0xffffffff && dcode[1] == 0xffffffff &&
3683             dcode[2] == 0xffffffff && dcode[3] == 0xffffffff) ||
3684             (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
3685                 dcode[3] == 0)) {
3686                 qla_printk(KERN_WARNING, ha,
3687                     "Unable to verify integrity of flash firmware image!\n");
3688                 qla_printk(KERN_WARNING, ha,
3689                     "Firmware data: %08x %08x %08x %08x!\n", dcode[0],
3690                     dcode[1], dcode[2], dcode[3]);
3691                 goto fail_fw_integrity;
3692         }
3693
3694         while (segments && rval == QLA_SUCCESS) {
3695                 risc_addr = be32_to_cpu(fwcode[2]);
3696                 *srisc_addr = *srisc_addr == 0 ? risc_addr : *srisc_addr;
3697                 risc_size = be32_to_cpu(fwcode[3]);
3698
3699                 /* Validate firmware image size. */
3700                 fwclen += risc_size * sizeof(uint32_t);
3701                 if (fw_entry->size < fwclen) {
3702                         qla_printk(KERN_WARNING, ha,
3703                             "Unable to verify integrity of flash firmware "
3704                             "image (%Zd)!\n", fw_entry->size);
3705                         goto fail_fw_integrity;
3706                 }
3707
3708                 fragment = 0;
3709                 while (risc_size > 0 && rval == QLA_SUCCESS) {
3710                         dlen = (uint32_t)(ha->fw_transfer_size >> 2);
3711                         if (dlen > risc_size)
3712                                 dlen = risc_size;
3713
3714                         DEBUG7(printk("scsi(%ld): Loading risc segment@ risc "
3715                             "addr %x, number of dwords 0x%x.\n", ha->host_no,
3716                             risc_addr, dlen));
3717
3718                         for (i = 0; i < dlen; i++)
3719                                 dcode[i] = swab32(fwcode[i]);
3720
3721                         rval = qla2x00_load_ram_ext(ha, ha->request_dma,
3722                             risc_addr, dlen);
3723                         if (rval) {
3724                                 DEBUG(printk("scsi(%ld):[ERROR] Failed to load "
3725                                     "segment %d of firmware\n", ha->host_no,
3726                                     fragment));
3727                                 qla_printk(KERN_WARNING, ha,
3728                                     "[ERROR] Failed to load segment %d of "
3729                                     "firmware\n", fragment);
3730                                 break;
3731                         }
3732
3733                         fwcode += dlen;
3734                         risc_addr += dlen;
3735                         risc_size -= dlen;
3736                         fragment++;
3737                 }
3738
3739                 /* Next segment. */
3740                 segments--;
3741         }
3742
3743         release_firmware(fw_entry);
3744         return rval;
3745
3746 fail_fw_integrity:
3747
3748         release_firmware(fw_entry);
3749         return QLA_FUNCTION_FAILED;
3750
3751 }