err.no Git - linux-2.6/blob - drivers/scsi/qla2xxx/qla_init.c

   1 /*
   2  * QLogic Fibre Channel HBA Driver
   3  * Copyright (c)  2003-2005 QLogic Corporation
   4  *
   5  * See LICENSE.qla2xxx for copyright and licensing details.
   6  */
   7 #include "qla_def.h"
   8
   9 #include <linux/delay.h>
  10 #include <linux/vmalloc.h>
  11 #include <scsi/scsi_transport_fc.h>
  12
  13 #include "qla_devtbl.h"
  14
  15 /* XXX(hch): this is ugly, but we don't want to pull in exioctl.h */
  16 #ifndef EXT_IS_LUN_BIT_SET
  17 #define EXT_IS_LUN_BIT_SET(P,L) \
  18     (((P)->mask[L/8] & (0x80 >> (L%8)))?1:0)
  19 #define EXT_SET_LUN_BIT(P,L) \
  20     ((P)->mask[L/8] |= (0x80 >> (L%8)))
  21 #endif
  22
  23 /*
  24 *  QLogic ISP2x00 Hardware Support Function Prototypes.
  25 */
  26 static int qla2x00_isp_firmware(scsi_qla_host_t *);
  27 static void qla2x00_resize_request_q(scsi_qla_host_t *);
  28 static int qla2x00_setup_chip(scsi_qla_host_t *);
  29 static void qla2x00_init_response_q_entries(scsi_qla_host_t *);
  30 static int qla2x00_init_rings(scsi_qla_host_t *);
  31 static int qla2x00_fw_ready(scsi_qla_host_t *);
  32 static int qla2x00_configure_hba(scsi_qla_host_t *);
  33 static int qla2x00_configure_loop(scsi_qla_host_t *);
  34 static int qla2x00_configure_local_loop(scsi_qla_host_t *);
  35 static void qla2x00_update_fcport(scsi_qla_host_t *, fc_port_t *);
  36 static int qla2x00_configure_fabric(scsi_qla_host_t *);
  37 static int qla2x00_find_all_fabric_devs(scsi_qla_host_t *, struct list_head *);
  38 static int qla2x00_device_resync(scsi_qla_host_t *);
  39 static int qla2x00_fabric_dev_login(scsi_qla_host_t *, fc_port_t *,
  40     uint16_t *);
  41
  42 static int qla2x00_restart_isp(scsi_qla_host_t *);
  43
  44 /****************************************************************************/
  45 /*                QLogic ISP2x00 Hardware Support Functions.                */
  46 /****************************************************************************/
  47
  48 /*
  49 * qla2x00_initialize_adapter
  50 *      Initialize board.
  51 *
  52 * Input:
  53 *      ha = adapter block pointer.
  54 *
  55 * Returns:
  56 *      0 = success
  57 */
  58 int
  59 qla2x00_initialize_adapter(scsi_qla_host_t *ha)
  60 {
  61         int     rval;
  62         uint8_t restart_risc = 0;
  63         uint8_t retry;
  64         uint32_t wait_time;
  65
  66         /* Clear adapter flags. */
  67         ha->flags.online = 0;
  68         ha->flags.reset_active = 0;
  69         atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
  70         atomic_set(&ha->loop_state, LOOP_DOWN);
  71         ha->device_flags = 0;
  72         ha->dpc_flags = 0;
  73         ha->flags.management_server_logged_in = 0;
  74         ha->marker_needed = 0;
  75         ha->mbx_flags = 0;
  76         ha->isp_abort_cnt = 0;
  77         ha->beacon_blink_led = 0;
  78         set_bit(REGISTER_FDMI_NEEDED, &ha->dpc_flags);
  79
  80         qla_printk(KERN_INFO, ha, "Configuring PCI space...\n");
  81         rval = ha->isp_ops.pci_config(ha);
  82         if (rval) {
  83                 DEBUG2(printk("scsi(%ld): Unable to configure PCI space=n",
  84                     ha->host_no));
  85                 return (rval);
  86         }
  87
  88         ha->isp_ops.reset_chip(ha);
  89
  90         qla_printk(KERN_INFO, ha, "Configure NVRAM parameters...\n");
  91
  92         ha->isp_ops.nvram_config(ha);
  93
  94         qla_printk(KERN_INFO, ha, "Verifying loaded RISC code...\n");
  95
  96         retry = 10;
  97         /*
  98          * Try to configure the loop.
  99          */
 100         do {
 101                 restart_risc = 0;
 102
 103                 /* If firmware needs to be loaded */
 104                 if (qla2x00_isp_firmware(ha) != QLA_SUCCESS) {
 105                         if ((rval = ha->isp_ops.chip_diag(ha)) == QLA_SUCCESS) {
 106                                 rval = qla2x00_setup_chip(ha);
 107                         }
 108                 }
 109
 110                 if (rval == QLA_SUCCESS &&
 111                     (rval = qla2x00_init_rings(ha)) == QLA_SUCCESS) {
 112 check_fw_ready_again:
 113                         /*
 114                          * Wait for a successful LIP up to a maximum
 115                          * of (in seconds): RISC login timeout value,
 116                          * RISC retry count value, and port down retry
 117                          * value OR a minimum of 4 seconds OR If no
 118                          * cable, only 5 seconds.
 119                          */
 120                         rval = qla2x00_fw_ready(ha);
 121                         if (rval == QLA_SUCCESS) {
 122                                 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
 123
 124                                 /* Issue a marker after FW becomes ready. */
 125                                 qla2x00_marker(ha, 0, 0, MK_SYNC_ALL);
 126
 127                                 /*
 128                                  * Wait at most MAX_TARGET RSCNs for a stable
 129                                  * link.
 130                                  */
 131                                 wait_time = 256;
 132                                 do {
 133                                         clear_bit(LOOP_RESYNC_NEEDED,
 134                                             &ha->dpc_flags);
 135                                         rval = qla2x00_configure_loop(ha);
 136
 137                                         if (test_and_clear_bit(ISP_ABORT_NEEDED,
 138                                             &ha->dpc_flags)) {
 139                                                 restart_risc = 1;
 140                                                 break;
 141                                         }
 142
 143                                         /*
 144                                          * If loop state change while we were
 145                                          * discoverying devices then wait for
 146                                          * LIP to complete
 147                                          */
 148
 149                                         if (atomic_read(&ha->loop_state) !=
 150                                             LOOP_READY && retry--) {
 151                                                 goto check_fw_ready_again;
 152                                         }
 153                                         wait_time--;
 154                                 } while (!atomic_read(&ha->loop_down_timer) &&
 155                                     retry &&
 156                                     wait_time &&
 157                                     (test_bit(LOOP_RESYNC_NEEDED,
 158                                         &ha->dpc_flags)));
 159
 160                                 if (wait_time == 0)
 161                                         rval = QLA_FUNCTION_FAILED;
 162                         } else if (ha->device_flags & DFLG_NO_CABLE)
 163                                 /* If no cable, then all is good. */
 164                                 rval = QLA_SUCCESS;
 165                 }
 166         } while (restart_risc && retry--);
 167
 168         if (rval == QLA_SUCCESS) {
 169                 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
 170                 qla2x00_marker(ha, 0, 0, MK_SYNC_ALL);
 171                 ha->marker_needed = 0;
 172
 173                 ha->flags.online = 1;
 174         } else {
 175                 DEBUG2_3(printk("%s(): **** FAILED ****\n", __func__));
 176         }
 177
 178         return (rval);
 179 }
 180
 181 /**
 182  * qla2100_pci_config() - Setup ISP21xx PCI configuration registers.
 183  * @ha: HA context
 184  *
 185  * Returns 0 on success.
 186  */
 187 int
 188 qla2100_pci_config(scsi_qla_host_t *ha)
 189 {
 190         uint16_t w, mwi;
 191         uint32_t d;
 192         unsigned long flags;
 193         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 194
 195         pci_set_master(ha->pdev);
 196         mwi = 0;
 197         if (pci_set_mwi(ha->pdev))
 198                 mwi = PCI_COMMAND_INVALIDATE;
 199         pci_read_config_word(ha->pdev, PCI_REVISION_ID, &ha->revision);
 200
 201         pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
 202         w |= mwi | (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
 203         pci_write_config_word(ha->pdev, PCI_COMMAND, w);
 204
 205         /* Reset expansion ROM address decode enable */
 206         pci_read_config_dword(ha->pdev, PCI_ROM_ADDRESS, &d);
 207         d &= ~PCI_ROM_ADDRESS_ENABLE;
 208         pci_write_config_dword(ha->pdev, PCI_ROM_ADDRESS, d);
 209
 210         /* Get PCI bus information. */
 211         spin_lock_irqsave(&ha->hardware_lock, flags);
 212         ha->pci_attr = RD_REG_WORD(&reg->ctrl_status);
 213         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 214
 215         return QLA_SUCCESS;
 216 }
 217
 218 /**
 219  * qla2300_pci_config() - Setup ISP23xx PCI configuration registers.
 220  * @ha: HA context
 221  *
 222  * Returns 0 on success.
 223  */
 224 int
 225 qla2300_pci_config(scsi_qla_host_t *ha)
 226 {
 227         uint16_t        w, mwi;
 228         uint32_t        d;
 229         unsigned long   flags = 0;
 230         uint32_t        cnt;
 231         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 232
 233         pci_set_master(ha->pdev);
 234         mwi = 0;
 235         if (pci_set_mwi(ha->pdev))
 236                 mwi = PCI_COMMAND_INVALIDATE;
 237         pci_read_config_word(ha->pdev, PCI_REVISION_ID, &ha->revision);
 238
 239         pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
 240         w |= mwi | (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
 241
 242         if (IS_QLA2322(ha) || IS_QLA6322(ha))
 243                 w &= ~PCI_COMMAND_INTX_DISABLE;
 244
 245         /*
 246          * If this is a 2300 card and not 2312, reset the
 247          * COMMAND_INVALIDATE due to a bug in the 2300. Unfortunately,
 248          * the 2310 also reports itself as a 2300 so we need to get the
 249          * fb revision level -- a 6 indicates it really is a 2300 and
 250          * not a 2310.
 251          */
 252         if (IS_QLA2300(ha)) {
 253                 spin_lock_irqsave(&ha->hardware_lock, flags);
 254
 255                 /* Pause RISC. */
 256                 WRT_REG_WORD(&reg->hccr, HCCR_PAUSE_RISC);
 257                 for (cnt = 0; cnt < 30000; cnt++) {
 258                         if ((RD_REG_WORD(&reg->hccr) & HCCR_RISC_PAUSE) != 0)
 259                                 break;
 260
 261                         udelay(10);
 262                 }
 263
 264                 /* Select FPM registers. */
 265                 WRT_REG_WORD(&reg->ctrl_status, 0x20);
 266                 RD_REG_WORD(&reg->ctrl_status);
 267
 268                 /* Get the fb rev level */
 269                 ha->fb_rev = RD_FB_CMD_REG(ha, reg);
 270
 271                 if (ha->fb_rev == FPM_2300)
 272                         w &= ~PCI_COMMAND_INVALIDATE;
 273
 274                 /* Deselect FPM registers. */
 275                 WRT_REG_WORD(&reg->ctrl_status, 0x0);
 276                 RD_REG_WORD(&reg->ctrl_status);
 277
 278                 /* Release RISC module. */
 279                 WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
 280                 for (cnt = 0; cnt < 30000; cnt++) {
 281                         if ((RD_REG_WORD(&reg->hccr) & HCCR_RISC_PAUSE) == 0)
 282                                 break;
 283
 284                         udelay(10);
 285                 }
 286
 287                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 288         }
 289         pci_write_config_word(ha->pdev, PCI_COMMAND, w);
 290
 291         pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);
 292
 293         /* Reset expansion ROM address decode enable */
 294         pci_read_config_dword(ha->pdev, PCI_ROM_ADDRESS, &d);
 295         d &= ~PCI_ROM_ADDRESS_ENABLE;
 296         pci_write_config_dword(ha->pdev, PCI_ROM_ADDRESS, d);
 297
 298         /* Get PCI bus information. */
 299         spin_lock_irqsave(&ha->hardware_lock, flags);
 300         ha->pci_attr = RD_REG_WORD(&reg->ctrl_status);
 301         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 302
 303         return QLA_SUCCESS;
 304 }
 305
 306 /**
 307  * qla24xx_pci_config() - Setup ISP24xx PCI configuration registers.
 308  * @ha: HA context
 309  *
 310  * Returns 0 on success.
 311  */
 312 int
 313 qla24xx_pci_config(scsi_qla_host_t *ha)
 314 {
 315         uint16_t w, mwi;
 316         uint32_t d;
 317         unsigned long flags = 0;
 318         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
 319         int pcix_cmd_reg, pcie_dctl_reg;
 320
 321         pci_set_master(ha->pdev);
 322         mwi = 0;
 323         if (pci_set_mwi(ha->pdev))
 324                 mwi = PCI_COMMAND_INVALIDATE;
 325         pci_read_config_word(ha->pdev, PCI_REVISION_ID, &ha->revision);
 326
 327         pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
 328         w |= mwi | (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
 329         w &= ~PCI_COMMAND_INTX_DISABLE;
 330         pci_write_config_word(ha->pdev, PCI_COMMAND, w);
 331
 332         pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);
 333
 334         /* PCI-X -- adjust Maximum Memory Read Byte Count (2048). */
 335         pcix_cmd_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_PCIX);
 336         if (pcix_cmd_reg) {
 337                 uint16_t pcix_cmd;
 338
 339                 pcix_cmd_reg += PCI_X_CMD;
 340                 pci_read_config_word(ha->pdev, pcix_cmd_reg, &pcix_cmd);
 341                 pcix_cmd &= ~PCI_X_CMD_MAX_READ;
 342                 pcix_cmd |= 0x0008;
 343                 pci_write_config_word(ha->pdev, pcix_cmd_reg, pcix_cmd);
 344         }
 345
 346         /* PCIe -- adjust Maximum Read Request Size (2048). */
 347         pcie_dctl_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
 348         if (pcie_dctl_reg) {
 349                 uint16_t pcie_dctl;
 350
 351                 pcie_dctl_reg += PCI_EXP_DEVCTL;
 352                 pci_read_config_word(ha->pdev, pcie_dctl_reg, &pcie_dctl);
 353                 pcie_dctl &= ~PCI_EXP_DEVCTL_READRQ;
 354                 pcie_dctl |= 0x4000;
 355                 pci_write_config_word(ha->pdev, pcie_dctl_reg, pcie_dctl);
 356         }
 357
 358         /* Reset expansion ROM address decode enable */
 359         pci_read_config_dword(ha->pdev, PCI_ROM_ADDRESS, &d);
 360         d &= ~PCI_ROM_ADDRESS_ENABLE;
 361         pci_write_config_dword(ha->pdev, PCI_ROM_ADDRESS, d);
 362
 363         /* Get PCI bus information. */
 364         spin_lock_irqsave(&ha->hardware_lock, flags);
 365         ha->pci_attr = RD_REG_DWORD(&reg->ctrl_status);
 366         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 367
 368         return QLA_SUCCESS;
 369 }
 370
 371 /**
 372  * qla2x00_isp_firmware() - Choose firmware image.
 373  * @ha: HA context
 374  *
 375  * Returns 0 on success.
 376  */
 377 static int
 378 qla2x00_isp_firmware(scsi_qla_host_t *ha)
 379 {
 380         int  rval;
 381
 382         /* Assume loading risc code */
 383         rval = QLA_FUNCTION_FAILED;
 384
 385         if (ha->flags.disable_risc_code_load) {
 386                 DEBUG2(printk("scsi(%ld): RISC CODE NOT loaded\n",
 387                     ha->host_no));
 388                 qla_printk(KERN_INFO, ha, "RISC CODE NOT loaded\n");
 389
 390                 /* Verify checksum of loaded RISC code. */
 391                 rval = qla2x00_verify_checksum(ha,
 392                     IS_QLA24XX(ha) || IS_QLA25XX(ha) ? RISC_SADDRESS :
 393                     *ha->brd_info->fw_info[0].fwstart);
 394         }
 395
 396         if (rval) {
 397                 DEBUG2_3(printk("scsi(%ld): **** Load RISC code ****\n",
 398                     ha->host_no));
 399         }
 400
 401         return (rval);
 402 }
 403
 404 /**
 405  * qla2x00_reset_chip() - Reset ISP chip.
 406  * @ha: HA context
 407  *
 408  * Returns 0 on success.
 409  */
 410 void
 411 qla2x00_reset_chip(scsi_qla_host_t *ha)
 412 {
 413         unsigned long   flags = 0;
 414         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 415         uint32_t        cnt;
 416         unsigned long   mbx_flags = 0;
 417         uint16_t        cmd;
 418
 419         ha->isp_ops.disable_intrs(ha);
 420
 421         spin_lock_irqsave(&ha->hardware_lock, flags);
 422
 423         /* Turn off master enable */
 424         cmd = 0;
 425         pci_read_config_word(ha->pdev, PCI_COMMAND, &cmd);
 426         cmd &= ~PCI_COMMAND_MASTER;
 427         pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
 428
 429         if (!IS_QLA2100(ha)) {
 430                 /* Pause RISC. */
 431                 WRT_REG_WORD(&reg->hccr, HCCR_PAUSE_RISC);
 432                 if (IS_QLA2200(ha) || IS_QLA2300(ha)) {
 433                         for (cnt = 0; cnt < 30000; cnt++) {
 434                                 if ((RD_REG_WORD(&reg->hccr) &
 435                                     HCCR_RISC_PAUSE) != 0)
 436                                         break;
 437                                 udelay(100);
 438                         }
 439                 } else {
 440                         RD_REG_WORD(&reg->hccr);        /* PCI Posting. */
 441                         udelay(10);
 442                 }
 443
 444                 /* Select FPM registers. */
 445                 WRT_REG_WORD(&reg->ctrl_status, 0x20);
 446                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
 447
 448                 /* FPM Soft Reset. */
 449                 WRT_REG_WORD(&reg->fpm_diag_config, 0x100);
 450                 RD_REG_WORD(&reg->fpm_diag_config);     /* PCI Posting. */
 451
 452                 /* Toggle Fpm Reset. */
 453                 if (!IS_QLA2200(ha)) {
 454                         WRT_REG_WORD(&reg->fpm_diag_config, 0x0);
 455                         RD_REG_WORD(&reg->fpm_diag_config); /* PCI Posting. */
 456                 }
 457
 458                 /* Select frame buffer registers. */
 459                 WRT_REG_WORD(&reg->ctrl_status, 0x10);
 460                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
 461
 462                 /* Reset frame buffer FIFOs. */
 463                 if (IS_QLA2200(ha)) {
 464                         WRT_FB_CMD_REG(ha, reg, 0xa000);
 465                         RD_FB_CMD_REG(ha, reg);         /* PCI Posting. */
 466                 } else {
 467                         WRT_FB_CMD_REG(ha, reg, 0x00fc);
 468
 469                         /* Read back fb_cmd until zero or 3 seconds max */
 470                         for (cnt = 0; cnt < 3000; cnt++) {
 471                                 if ((RD_FB_CMD_REG(ha, reg) & 0xff) == 0)
 472                                         break;
 473                                 udelay(100);
 474                         }
 475                 }
 476
 477                 /* Select RISC module registers. */
 478                 WRT_REG_WORD(&reg->ctrl_status, 0);
 479                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
 480
 481                 /* Reset RISC processor. */
 482                 WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
 483                 RD_REG_WORD(&reg->hccr);                /* PCI Posting. */
 484
 485                 /* Release RISC processor. */
 486                 WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
 487                 RD_REG_WORD(&reg->hccr);                /* PCI Posting. */
 488         }
 489
 490         WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
 491         WRT_REG_WORD(&reg->hccr, HCCR_CLR_HOST_INT);
 492
 493         /* Reset ISP chip. */
 494         WRT_REG_WORD(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
 495
 496         /* Wait for RISC to recover from reset. */
 497         if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
 498                 /*
 499                  * It is necessary to for a delay here since the card doesn't
 500                  * respond to PCI reads during a reset. On some architectures
 501                  * this will result in an MCA.
 502                  */
 503                 udelay(20);
 504                 for (cnt = 30000; cnt; cnt--) {
 505                         if ((RD_REG_WORD(&reg->ctrl_status) &
 506                             CSR_ISP_SOFT_RESET) == 0)
 507                                 break;
 508                         udelay(100);
 509                 }
 510         } else
 511                 udelay(10);
 512
 513         /* Reset RISC processor. */
 514         WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
 515
 516         WRT_REG_WORD(&reg->semaphore, 0);
 517
 518         /* Release RISC processor. */
 519         WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
 520         RD_REG_WORD(&reg->hccr);                        /* PCI Posting. */
 521
 522         if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
 523                 for (cnt = 0; cnt < 30000; cnt++) {
 524                         if (!(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)))
 525                                 spin_lock_irqsave(&ha->mbx_reg_lock, mbx_flags);
 526
 527                         if (RD_MAILBOX_REG(ha, reg, 0) != MBS_BUSY) {
 528                                 if (!(test_bit(ABORT_ISP_ACTIVE,
 529                                     &ha->dpc_flags)))
 530                                         spin_unlock_irqrestore(
 531                                             &ha->mbx_reg_lock, mbx_flags);
 532                                 break;
 533                         }
 534
 535                         if (!(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)))
 536                                 spin_unlock_irqrestore(&ha->mbx_reg_lock,
 537                                     mbx_flags);
 538
 539                         udelay(100);
 540                 }
 541         } else
 542                 udelay(100);
 543
 544         /* Turn on master enable */
 545         cmd |= PCI_COMMAND_MASTER;
 546         pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
 547
 548         /* Disable RISC pause on FPM parity error. */
 549         if (!IS_QLA2100(ha)) {
 550                 WRT_REG_WORD(&reg->hccr, HCCR_DISABLE_PARITY_PAUSE);
 551                 RD_REG_WORD(&reg->hccr);                /* PCI Posting. */
 552         }
 553
 554         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 555 }
 556
 557 /**
 558  * qla24xx_reset_risc() - Perform full reset of ISP24xx RISC.
 559  * @ha: HA context
 560  *
 561  * Returns 0 on success.
 562  */
 563 static inline void
 564 qla24xx_reset_risc(scsi_qla_host_t *ha)
 565 {
 566         unsigned long flags = 0;
 567         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
 568         uint32_t cnt, d2;
 569         uint16_t wd;
 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         pci_read_config_word(ha->pdev, PCI_COMMAND, &wd);
 585
 586         udelay(100);
 587         /* Wait for firmware to complete NVRAM accesses. */
 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         /* Wait for soft-reset to complete. */
 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 ((le16_to_cpu(ha->fw_seriallink_options24[0]) & BIT_0) == 0)
1018                 return;
1019
1020         rval = qla2x00_set_serdes_params(ha,
1021             le16_to_cpu(ha->fw_seriallink_options24[1]),
1022             le16_to_cpu(ha->fw_seriallink_options24[2]),
1023             le16_to_cpu(ha->fw_seriallink_options24[3]));
1024         if (rval != QLA_SUCCESS) {
1025                 qla_printk(KERN_WARNING, ha,
1026                     "Unable to update Serial Link options (%x).\n", rval);
1027         }
1028 }
1029
1030 void
1031 qla2x00_config_rings(struct scsi_qla_host *ha)
1032 {
1033         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1034
1035         /* Setup ring parameters in initialization control block. */
1036         ha->init_cb->request_q_outpointer = __constant_cpu_to_le16(0);
1037         ha->init_cb->response_q_inpointer = __constant_cpu_to_le16(0);
1038         ha->init_cb->request_q_length = cpu_to_le16(ha->request_q_length);
1039         ha->init_cb->response_q_length = cpu_to_le16(ha->response_q_length);
1040         ha->init_cb->request_q_address[0] = cpu_to_le32(LSD(ha->request_dma));
1041         ha->init_cb->request_q_address[1] = cpu_to_le32(MSD(ha->request_dma));
1042         ha->init_cb->response_q_address[0] = cpu_to_le32(LSD(ha->response_dma));
1043         ha->init_cb->response_q_address[1] = cpu_to_le32(MSD(ha->response_dma));
1044
1045         WRT_REG_WORD(ISP_REQ_Q_IN(ha, reg), 0);
1046         WRT_REG_WORD(ISP_REQ_Q_OUT(ha, reg), 0);
1047         WRT_REG_WORD(ISP_RSP_Q_IN(ha, reg), 0);
1048         WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), 0);
1049         RD_REG_WORD(ISP_RSP_Q_OUT(ha, reg));            /* PCI Posting. */
1050 }
1051
1052 void
1053 qla24xx_config_rings(struct scsi_qla_host *ha)
1054 {
1055         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1056         struct init_cb_24xx *icb;
1057
1058         /* Setup ring parameters in initialization control block. */
1059         icb = (struct init_cb_24xx *)ha->init_cb;
1060         icb->request_q_outpointer = __constant_cpu_to_le16(0);
1061         icb->response_q_inpointer = __constant_cpu_to_le16(0);
1062         icb->request_q_length = cpu_to_le16(ha->request_q_length);
1063         icb->response_q_length = cpu_to_le16(ha->response_q_length);
1064         icb->request_q_address[0] = cpu_to_le32(LSD(ha->request_dma));
1065         icb->request_q_address[1] = cpu_to_le32(MSD(ha->request_dma));
1066         icb->response_q_address[0] = cpu_to_le32(LSD(ha->response_dma));
1067         icb->response_q_address[1] = cpu_to_le32(MSD(ha->response_dma));
1068
1069         WRT_REG_DWORD(&reg->req_q_in, 0);
1070         WRT_REG_DWORD(&reg->req_q_out, 0);
1071         WRT_REG_DWORD(&reg->rsp_q_in, 0);
1072         WRT_REG_DWORD(&reg->rsp_q_out, 0);
1073         RD_REG_DWORD(&reg->rsp_q_out);
1074 }
1075
1076 /**
1077  * qla2x00_init_rings() - Initializes firmware.
1078  * @ha: HA context
1079  *
1080  * Beginning of request ring has initialization control block already built
1081  * by nvram config routine.
1082  *
1083  * Returns 0 on success.
1084  */
1085 static int
1086 qla2x00_init_rings(scsi_qla_host_t *ha)
1087 {
1088         int     rval;
1089         unsigned long flags = 0;
1090         int cnt;
1091
1092         spin_lock_irqsave(&ha->hardware_lock, flags);
1093
1094         /* Clear outstanding commands array. */
1095         for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++)
1096                 ha->outstanding_cmds[cnt] = NULL;
1097
1098         ha->current_outstanding_cmd = 0;
1099
1100         /* Clear RSCN queue. */
1101         ha->rscn_in_ptr = 0;
1102         ha->rscn_out_ptr = 0;
1103
1104         /* Initialize firmware. */
1105         ha->request_ring_ptr  = ha->request_ring;
1106         ha->req_ring_index    = 0;
1107         ha->req_q_cnt         = ha->request_q_length;
1108         ha->response_ring_ptr = ha->response_ring;
1109         ha->rsp_ring_index    = 0;
1110
1111         /* Initialize response queue entries */
1112         qla2x00_init_response_q_entries(ha);
1113
1114         ha->isp_ops.config_rings(ha);
1115
1116         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1117
1118         /* Update any ISP specific firmware options before initialization. */
1119         ha->isp_ops.update_fw_options(ha);
1120
1121         DEBUG(printk("scsi(%ld): Issue init firmware.\n", ha->host_no));
1122         rval = qla2x00_init_firmware(ha, ha->init_cb_size);
1123         if (rval) {
1124                 DEBUG2_3(printk("scsi(%ld): Init firmware **** FAILED ****.\n",
1125                     ha->host_no));
1126         } else {
1127                 DEBUG3(printk("scsi(%ld): Init firmware -- success.\n",
1128                     ha->host_no));
1129         }
1130
1131         return (rval);
1132 }
1133
1134 /**
1135  * qla2x00_fw_ready() - Waits for firmware ready.
1136  * @ha: HA context
1137  *
1138  * Returns 0 on success.
1139  */
1140 static int
1141 qla2x00_fw_ready(scsi_qla_host_t *ha)
1142 {
1143         int             rval;
1144         unsigned long   wtime, mtime;
1145         uint16_t        min_wait;       /* Minimum wait time if loop is down */
1146         uint16_t        wait_time;      /* Wait time if loop is coming ready */
1147         uint16_t        fw_state;
1148
1149         rval = QLA_SUCCESS;
1150
1151         /* 20 seconds for loop down. */
1152         min_wait = 20;
1153
1154         /*
1155          * Firmware should take at most one RATOV to login, plus 5 seconds for
1156          * our own processing.
1157          */
1158         if ((wait_time = (ha->retry_count*ha->login_timeout) + 5) < min_wait) {
1159                 wait_time = min_wait;
1160         }
1161
1162         /* Min wait time if loop down */
1163         mtime = jiffies + (min_wait * HZ);
1164
1165         /* wait time before firmware ready */
1166         wtime = jiffies + (wait_time * HZ);
1167
1168         /* Wait for ISP to finish LIP */
1169         if (!ha->flags.init_done)
1170                 qla_printk(KERN_INFO, ha, "Waiting for LIP to complete...\n");
1171
1172         DEBUG3(printk("scsi(%ld): Waiting for LIP to complete...\n",
1173             ha->host_no));
1174
1175         do {
1176                 rval = qla2x00_get_firmware_state(ha, &fw_state);
1177                 if (rval == QLA_SUCCESS) {
1178                         if (fw_state < FSTATE_LOSS_OF_SYNC) {
1179                                 ha->device_flags &= ~DFLG_NO_CABLE;
1180                         }
1181                         if (fw_state == FSTATE_READY) {
1182                                 DEBUG(printk("scsi(%ld): F/W Ready - OK \n",
1183                                     ha->host_no));
1184
1185                                 qla2x00_get_retry_cnt(ha, &ha->retry_count,
1186                                     &ha->login_timeout, &ha->r_a_tov);
1187
1188                                 rval = QLA_SUCCESS;
1189                                 break;
1190                         }
1191
1192                         rval = QLA_FUNCTION_FAILED;
1193
1194                         if (atomic_read(&ha->loop_down_timer) &&
1195                             (fw_state >= FSTATE_LOSS_OF_SYNC ||
1196                                 fw_state == FSTATE_WAIT_AL_PA)) {
1197                                 /* Loop down. Timeout on min_wait for states
1198                                  * other than Wait for Login.
1199                                  */
1200                                 if (time_after_eq(jiffies, mtime)) {
1201                                         qla_printk(KERN_INFO, ha,
1202                                             "Cable is unplugged...\n");
1203
1204                                         ha->device_flags |= DFLG_NO_CABLE;
1205                                         break;
1206                                 }
1207                         }
1208                 } else {
1209                         /* Mailbox cmd failed. Timeout on min_wait. */
1210                         if (time_after_eq(jiffies, mtime))
1211                                 break;
1212                 }
1213
1214                 if (time_after_eq(jiffies, wtime))
1215                         break;
1216
1217                 /* Delay for a while */
1218                 msleep(500);
1219
1220                 DEBUG3(printk("scsi(%ld): fw_state=%x curr time=%lx.\n",
1221                     ha->host_no, fw_state, jiffies));
1222         } while (1);
1223
1224         DEBUG(printk("scsi(%ld): fw_state=%x curr time=%lx.\n",
1225             ha->host_no, fw_state, jiffies));
1226
1227         if (rval) {
1228                 DEBUG2_3(printk("scsi(%ld): Firmware ready **** FAILED ****.\n",
1229                     ha->host_no));
1230         }
1231
1232         return (rval);
1233 }
1234
1235 /*
1236 *  qla2x00_configure_hba
1237 *      Setup adapter context.
1238 *
1239 * Input:
1240 *      ha = adapter state pointer.
1241 *
1242 * Returns:
1243 *      0 = success
1244 *
1245 * Context:
1246 *      Kernel context.
1247 */
1248 static int
1249 qla2x00_configure_hba(scsi_qla_host_t *ha)
1250 {
1251         int       rval;
1252         uint16_t      loop_id;
1253         uint16_t      topo;
1254         uint8_t       al_pa;
1255         uint8_t       area;
1256         uint8_t       domain;
1257         char            connect_type[22];
1258
1259         /* Get host addresses. */
1260         rval = qla2x00_get_adapter_id(ha,
1261             &loop_id, &al_pa, &area, &domain, &topo);
1262         if (rval != QLA_SUCCESS) {
1263                 if (LOOP_TRANSITION(ha) || atomic_read(&ha->loop_down_timer) ||
1264                     (rval == QLA_COMMAND_ERROR && loop_id == 0x7)) {
1265                         DEBUG2(printk("%s(%ld) Loop is in a transition state\n",
1266                             __func__, ha->host_no));
1267                 } else {
1268                         qla_printk(KERN_WARNING, ha,
1269                             "ERROR -- Unable to get host loop ID.\n");
1270                         set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
1271                 }
1272                 return (rval);
1273         }
1274
1275         if (topo == 4) {
1276                 qla_printk(KERN_INFO, ha,
1277                         "Cannot get topology - retrying.\n");
1278                 return (QLA_FUNCTION_FAILED);
1279         }
1280
1281         ha->loop_id = loop_id;
1282
1283         /* initialize */
1284         ha->min_external_loopid = SNS_FIRST_LOOP_ID;
1285         ha->operating_mode = LOOP;
1286
1287         switch (topo) {
1288         case 0:
1289                 DEBUG3(printk("scsi(%ld): HBA in NL topology.\n",
1290                     ha->host_no));
1291                 ha->current_topology = ISP_CFG_NL;
1292                 strcpy(connect_type, "(Loop)");
1293                 break;
1294
1295         case 1:
1296                 DEBUG3(printk("scsi(%ld): HBA in FL topology.\n",
1297                     ha->host_no));
1298                 ha->current_topology = ISP_CFG_FL;
1299                 strcpy(connect_type, "(FL_Port)");
1300                 break;
1301
1302         case 2:
1303                 DEBUG3(printk("scsi(%ld): HBA in N P2P topology.\n",
1304                     ha->host_no));
1305                 ha->operating_mode = P2P;
1306                 ha->current_topology = ISP_CFG_N;
1307                 strcpy(connect_type, "(N_Port-to-N_Port)");
1308                 break;
1309
1310         case 3:
1311                 DEBUG3(printk("scsi(%ld): HBA in F P2P topology.\n",
1312                     ha->host_no));
1313                 ha->operating_mode = P2P;
1314                 ha->current_topology = ISP_CFG_F;
1315                 strcpy(connect_type, "(F_Port)");
1316                 break;
1317
1318         default:
1319                 DEBUG3(printk("scsi(%ld): HBA in unknown topology %x. "
1320                     "Using NL.\n",
1321                     ha->host_no, topo));
1322                 ha->current_topology = ISP_CFG_NL;
1323                 strcpy(connect_type, "(Loop)");
1324                 break;
1325         }
1326
1327         /* Save Host port and loop ID. */
1328         /* byte order - Big Endian */
1329         ha->d_id.b.domain = domain;
1330         ha->d_id.b.area = area;
1331         ha->d_id.b.al_pa = al_pa;
1332
1333         if (!ha->flags.init_done)
1334                 qla_printk(KERN_INFO, ha,
1335                     "Topology - %s, Host Loop address 0x%x\n",
1336                     connect_type, ha->loop_id);
1337
1338         if (rval) {
1339                 DEBUG2_3(printk("scsi(%ld): FAILED.\n", ha->host_no));
1340         } else {
1341                 DEBUG3(printk("scsi(%ld): exiting normally.\n", ha->host_no));
1342         }
1343
1344         return(rval);
1345 }
1346
1347 /*
1348 * NVRAM configuration for ISP 2xxx
1349 *
1350 * Input:
1351 *      ha                = adapter block pointer.
1352 *
1353 * Output:
1354 *      initialization control block in response_ring
1355 *      host adapters parameters in host adapter block
1356 *
1357 * Returns:
1358 *      0 = success.
1359 */
1360 int
1361 qla2x00_nvram_config(scsi_qla_host_t *ha)
1362 {
1363         int             rval;
1364         uint8_t         chksum = 0;
1365         uint16_t        cnt;
1366         uint8_t         *dptr1, *dptr2;
1367         init_cb_t       *icb = ha->init_cb;
1368         nvram_t         *nv = (nvram_t *)ha->request_ring;
1369         uint8_t         *ptr = (uint8_t *)ha->request_ring;
1370         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1371
1372         rval = QLA_SUCCESS;
1373
1374         /* Determine NVRAM starting address. */
1375         ha->nvram_size = sizeof(nvram_t);
1376         ha->nvram_base = 0;
1377         if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA2300(ha))
1378                 if ((RD_REG_WORD(&reg->ctrl_status) >> 14) == 1)
1379                         ha->nvram_base = 0x80;
1380
1381         /* Get NVRAM data and calculate checksum. */
1382         ha->isp_ops.read_nvram(ha, ptr, ha->nvram_base, ha->nvram_size);
1383         for (cnt = 0, chksum = 0; cnt < ha->nvram_size; cnt++)
1384                 chksum += *ptr++;
1385
1386         DEBUG5(printk("scsi(%ld): Contents of NVRAM\n", ha->host_no));
1387         DEBUG5(qla2x00_dump_buffer((uint8_t *)ha->request_ring,
1388             ha->nvram_size));
1389
1390         /* Bad NVRAM data, set defaults parameters. */
1391         if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' ||
1392             nv->id[2] != 'P' || nv->id[3] != ' ' || nv->nvram_version < 1) {
1393                 /* Reset NVRAM data. */
1394                 qla_printk(KERN_WARNING, ha, "Inconsistent NVRAM detected: "
1395                     "checksum=0x%x id=%c version=0x%x.\n", chksum, nv->id[0],
1396                     nv->nvram_version);
1397                 qla_printk(KERN_WARNING, ha, "Falling back to functioning (yet "
1398                     "invalid -- WWPN) defaults.\n");
1399
1400                 /*
1401                  * Set default initialization control block.
1402                  */
1403                 memset(nv, 0, ha->nvram_size);
1404                 nv->parameter_block_version = ICB_VERSION;
1405
1406                 if (IS_QLA23XX(ha)) {
1407                         nv->firmware_options[0] = BIT_2 | BIT_1;
1408                         nv->firmware_options[1] = BIT_7 | BIT_5;
1409                         nv->add_firmware_options[0] = BIT_5;
1410                         nv->add_firmware_options[1] = BIT_5 | BIT_4;
1411                         nv->frame_payload_size = __constant_cpu_to_le16(2048);
1412                         nv->special_options[1] = BIT_7;
1413                 } else if (IS_QLA2200(ha)) {
1414                         nv->firmware_options[0] = BIT_2 | BIT_1;
1415                         nv->firmware_options[1] = BIT_7 | BIT_5;
1416                         nv->add_firmware_options[0] = BIT_5;
1417                         nv->add_firmware_options[1] = BIT_5 | BIT_4;
1418                         nv->frame_payload_size = __constant_cpu_to_le16(1024);
1419                 } else if (IS_QLA2100(ha)) {
1420                         nv->firmware_options[0] = BIT_3 | BIT_1;
1421                         nv->firmware_options[1] = BIT_5;
1422                         nv->frame_payload_size = __constant_cpu_to_le16(1024);
1423                 }
1424
1425                 nv->max_iocb_allocation = __constant_cpu_to_le16(256);
1426                 nv->execution_throttle = __constant_cpu_to_le16(16);
1427                 nv->retry_count = 8;
1428                 nv->retry_delay = 1;
1429
1430                 nv->port_name[0] = 33;
1431                 nv->port_name[3] = 224;
1432                 nv->port_name[4] = 139;
1433
1434                 nv->login_timeout = 4;
1435
1436                 /*
1437                  * Set default host adapter parameters
1438                  */
1439                 nv->host_p[1] = BIT_2;
1440                 nv->reset_delay = 5;
1441                 nv->port_down_retry_count = 8;
1442                 nv->max_luns_per_target = __constant_cpu_to_le16(8);
1443                 nv->link_down_timeout = 60;
1444
1445                 rval = 1;
1446         }
1447
1448 #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
1449         /*
1450          * The SN2 does not provide BIOS emulation which means you can't change
1451          * potentially bogus BIOS settings. Force the use of default settings
1452          * for link rate and frame size.  Hope that the rest of the settings
1453          * are valid.
1454          */
1455         if (ia64_platform_is("sn2")) {
1456                 nv->frame_payload_size = __constant_cpu_to_le16(2048);
1457                 if (IS_QLA23XX(ha))
1458                         nv->special_options[1] = BIT_7;
1459         }
1460 #endif
1461
1462         /* Reset Initialization control block */
1463         memset(icb, 0, ha->init_cb_size);
1464
1465         /*
1466          * Setup driver NVRAM options.
1467          */
1468         nv->firmware_options[0] |= (BIT_6 | BIT_1);
1469         nv->firmware_options[0] &= ~(BIT_5 | BIT_4);
1470         nv->firmware_options[1] |= (BIT_5 | BIT_0);
1471         nv->firmware_options[1] &= ~BIT_4;
1472
1473         if (IS_QLA23XX(ha)) {
1474                 nv->firmware_options[0] |= BIT_2;
1475                 nv->firmware_options[0] &= ~BIT_3;
1476                 nv->add_firmware_options[1] |= BIT_5 | BIT_4;
1477
1478                 if (IS_QLA2300(ha)) {
1479                         if (ha->fb_rev == FPM_2310) {
1480                                 strcpy(ha->model_number, "QLA2310");
1481                         } else {
1482                                 strcpy(ha->model_number, "QLA2300");
1483                         }
1484                 } else {
1485                         if (rval == 0 &&
1486                             memcmp(nv->model_number, BINZERO,
1487                                     sizeof(nv->model_number)) != 0) {
1488                                 char *st, *en;
1489
1490                                 strncpy(ha->model_number, nv->model_number,
1491                                     sizeof(nv->model_number));
1492                                 st = en = ha->model_number;
1493                                 en += sizeof(nv->model_number) - 1;
1494                                 while (en > st) {
1495                                         if (*en != 0x20 && *en != 0x00)
1496                                                 break;
1497                                         *en-- = '\0';
1498                                 }
1499                         } else {
1500                                 uint16_t        index;
1501
1502                                 index = (ha->pdev->subsystem_device & 0xff);
1503                                 if (index < QLA_MODEL_NAMES) {
1504                                         strcpy(ha->model_number,
1505                                             qla2x00_model_name[index]);
1506                                         ha->model_desc =
1507                                             qla2x00_model_desc[index];
1508                                 } else {
1509                                         strcpy(ha->model_number, "QLA23xx");
1510                                 }
1511                         }
1512                 }
1513         } else if (IS_QLA2200(ha)) {
1514                 nv->firmware_options[0] |= BIT_2;
1515                 /*
1516                  * 'Point-to-point preferred, else loop' is not a safe
1517                  * connection mode setting.
1518                  */
1519                 if ((nv->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) ==
1520                     (BIT_5 | BIT_4)) {
1521                         /* Force 'loop preferred, else point-to-point'. */
1522                         nv->add_firmware_options[0] &= ~(BIT_6 | BIT_5 | BIT_4);
1523                         nv->add_firmware_options[0] |= BIT_5;
1524                 }
1525                 strcpy(ha->model_number, "QLA22xx");
1526         } else /*if (IS_QLA2100(ha))*/ {
1527                 strcpy(ha->model_number, "QLA2100");
1528         }
1529
1530         /*
1531          * Copy over NVRAM RISC parameter block to initialization control block.
1532          */
1533         dptr1 = (uint8_t *)icb;
1534         dptr2 = (uint8_t *)&nv->parameter_block_version;
1535         cnt = (uint8_t *)&icb->request_q_outpointer - (uint8_t *)&icb->version;
1536         while (cnt--)
1537                 *dptr1++ = *dptr2++;
1538
1539         /* Copy 2nd half. */
1540         dptr1 = (uint8_t *)icb->add_firmware_options;
1541         cnt = (uint8_t *)icb->reserved_3 - (uint8_t *)icb->add_firmware_options;
1542         while (cnt--)
1543                 *dptr1++ = *dptr2++;
1544
1545         /* Prepare nodename */
1546         if ((icb->firmware_options[1] & BIT_6) == 0) {
1547                 /*
1548                  * Firmware will apply the following mask if the nodename was
1549                  * not provided.
1550                  */
1551                 memcpy(icb->node_name, icb->port_name, WWN_SIZE);
1552                 icb->node_name[0] &= 0xF0;
1553         }
1554
1555         /*
1556          * Set host adapter parameters.
1557          */
1558         ha->flags.disable_risc_code_load = ((nv->host_p[0] & BIT_4) ? 1 : 0);
1559         /* Always load RISC code on non ISP2[12]00 chips. */
1560         if (!IS_QLA2100(ha) && !IS_QLA2200(ha))
1561                 ha->flags.disable_risc_code_load = 0;
1562         ha->flags.enable_lip_reset = ((nv->host_p[1] & BIT_1) ? 1 : 0);
1563         ha->flags.enable_lip_full_login = ((nv->host_p[1] & BIT_2) ? 1 : 0);
1564         ha->flags.enable_target_reset = ((nv->host_p[1] & BIT_3) ? 1 : 0);
1565         ha->flags.enable_led_scheme = (nv->special_options[1] & BIT_4) ? 1 : 0;
1566
1567         ha->operating_mode =
1568             (icb->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) >> 4;
1569
1570         memcpy(ha->fw_seriallink_options, nv->seriallink_options,
1571             sizeof(ha->fw_seriallink_options));
1572
1573         /* save HBA serial number */
1574         ha->serial0 = icb->port_name[5];
1575         ha->serial1 = icb->port_name[6];
1576         ha->serial2 = icb->port_name[7];
1577         ha->node_name = icb->node_name;
1578         ha->port_name = icb->port_name;
1579
1580         icb->execution_throttle = __constant_cpu_to_le16(0xFFFF);
1581
1582         ha->retry_count = nv->retry_count;
1583
1584         /* Set minimum login_timeout to 4 seconds. */
1585         if (nv->login_timeout < ql2xlogintimeout)
1586                 nv->login_timeout = ql2xlogintimeout;
1587         if (nv->login_timeout < 4)
1588                 nv->login_timeout = 4;
1589         ha->login_timeout = nv->login_timeout;
1590         icb->login_timeout = nv->login_timeout;
1591
1592         /* Set minimum RATOV to 200 tenths of a second. */
1593         ha->r_a_tov = 200;
1594
1595         ha->loop_reset_delay = nv->reset_delay;
1596
1597         /* Link Down Timeout = 0:
1598          *
1599          *      When Port Down timer expires we will start returning
1600          *      I/O's to OS with "DID_NO_CONNECT".
1601          *
1602          * Link Down Timeout != 0:
1603          *
1604          *       The driver waits for the link to come up after link down
1605          *       before returning I/Os to OS with "DID_NO_CONNECT".
1606          */
1607         if (nv->link_down_timeout == 0) {
1608                 ha->loop_down_abort_time =
1609                     (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
1610         } else {
1611                 ha->link_down_timeout =  nv->link_down_timeout;
1612                 ha->loop_down_abort_time =
1613                     (LOOP_DOWN_TIME - ha->link_down_timeout);
1614         }
1615
1616         /*
1617          * Need enough time to try and get the port back.
1618          */
1619         ha->port_down_retry_count = nv->port_down_retry_count;
1620         if (qlport_down_retry)
1621                 ha->port_down_retry_count = qlport_down_retry;
1622         /* Set login_retry_count */
1623         ha->login_retry_count  = nv->retry_count;
1624         if (ha->port_down_retry_count == nv->port_down_retry_count &&
1625             ha->port_down_retry_count > 3)
1626                 ha->login_retry_count = ha->port_down_retry_count;
1627         else if (ha->port_down_retry_count > (int)ha->login_retry_count)
1628                 ha->login_retry_count = ha->port_down_retry_count;
1629         if (ql2xloginretrycount)
1630                 ha->login_retry_count = ql2xloginretrycount;
1631
1632         icb->lun_enables = __constant_cpu_to_le16(0);
1633         icb->command_resource_count = 0;
1634         icb->immediate_notify_resource_count = 0;
1635         icb->timeout = __constant_cpu_to_le16(0);
1636
1637         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
1638                 /* Enable RIO */
1639                 icb->firmware_options[0] &= ~BIT_3;
1640                 icb->add_firmware_options[0] &=
1641                     ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
1642                 icb->add_firmware_options[0] |= BIT_2;
1643                 icb->response_accumulation_timer = 3;
1644                 icb->interrupt_delay_timer = 5;
1645
1646                 ha->flags.process_response_queue = 1;
1647         } else {
1648                 /* Enable ZIO. */
1649                 if (!ha->flags.init_done) {
1650                         ha->zio_mode = icb->add_firmware_options[0] &
1651                             (BIT_3 | BIT_2 | BIT_1 | BIT_0);
1652                         ha->zio_timer = icb->interrupt_delay_timer ?
1653                             icb->interrupt_delay_timer: 2;
1654                 }
1655                 icb->add_firmware_options[0] &=
1656                     ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
1657                 ha->flags.process_response_queue = 0;
1658                 if (ha->zio_mode != QLA_ZIO_DISABLED) {
1659                         DEBUG2(printk("scsi(%ld): ZIO mode %d enabled; timer "
1660                             "delay (%d us).\n", ha->host_no, ha->zio_mode,
1661                             ha->zio_timer * 100));
1662                         qla_printk(KERN_INFO, ha,
1663                             "ZIO mode %d enabled; timer delay (%d us).\n",
1664                             ha->zio_mode, ha->zio_timer * 100);
1665
1666                         icb->add_firmware_options[0] |= (uint8_t)ha->zio_mode;
1667                         icb->interrupt_delay_timer = (uint8_t)ha->zio_timer;
1668                         ha->flags.process_response_queue = 1;
1669                 }
1670         }
1671
1672         if (rval) {
1673                 DEBUG2_3(printk(KERN_WARNING
1674                     "scsi(%ld): NVRAM configuration failed!\n", ha->host_no));
1675         }
1676         return (rval);
1677 }
1678
1679 static void
1680 qla2x00_rport_add(void *data)
1681 {
1682         fc_port_t *fcport = data;
1683
1684         qla2x00_reg_remote_port(fcport->ha, fcport);
1685 }
1686
1687 static void
1688 qla2x00_rport_del(void *data)
1689 {
1690         fc_port_t *fcport = data;
1691
1692         if (fcport->rport)
1693                 fc_remote_port_delete(fcport->rport);
1694         fcport->rport = NULL;
1695 }
1696
1697 /**
1698  * qla2x00_alloc_fcport() - Allocate a generic fcport.
1699  * @ha: HA context
1700  * @flags: allocation flags
1701  *
1702  * Returns a pointer to the allocated fcport, or NULL, if none available.
1703  */
1704 fc_port_t *
1705 qla2x00_alloc_fcport(scsi_qla_host_t *ha, gfp_t flags)
1706 {
1707         fc_port_t *fcport;
1708
1709         fcport = kmalloc(sizeof(fc_port_t), flags);
1710         if (fcport == NULL)
1711                 return (fcport);
1712
1713         /* Setup fcport template structure. */
1714         memset(fcport, 0, sizeof (fc_port_t));
1715         fcport->ha = ha;
1716         fcport->port_type = FCT_UNKNOWN;
1717         fcport->loop_id = FC_NO_LOOP_ID;
1718         fcport->iodesc_idx_sent = IODESC_INVALID_INDEX;
1719         atomic_set(&fcport->state, FCS_UNCONFIGURED);
1720         fcport->flags = FCF_RLC_SUPPORT;
1721         fcport->supported_classes = FC_COS_UNSPECIFIED;
1722         INIT_WORK(&fcport->rport_add_work, qla2x00_rport_add, fcport);
1723         INIT_WORK(&fcport->rport_del_work, qla2x00_rport_del, fcport);
1724
1725         return (fcport);
1726 }
1727
1728 /*
1729  * qla2x00_configure_loop
1730  *      Updates Fibre Channel Device Database with what is actually on loop.
1731  *
1732  * Input:
1733  *      ha                = adapter block pointer.
1734  *
1735  * Returns:
1736  *      0 = success.
1737  *      1 = error.
1738  *      2 = database was full and device was not configured.
1739  */
1740 static int
1741 qla2x00_configure_loop(scsi_qla_host_t *ha)
1742 {
1743         int  rval;
1744         unsigned long flags, save_flags;
1745
1746         rval = QLA_SUCCESS;
1747
1748         /* Get Initiator ID */
1749         if (test_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags)) {
1750                 rval = qla2x00_configure_hba(ha);
1751                 if (rval != QLA_SUCCESS) {
1752                         DEBUG(printk("scsi(%ld): Unable to configure HBA.\n",
1753                             ha->host_no));
1754                         return (rval);
1755                 }
1756         }
1757
1758         save_flags = flags = ha->dpc_flags;
1759         DEBUG(printk("scsi(%ld): Configure loop -- dpc flags =0x%lx\n",
1760             ha->host_no, flags));
1761
1762         /*
1763          * If we have both an RSCN and PORT UPDATE pending then handle them
1764          * both at the same time.
1765          */
1766         clear_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1767         clear_bit(RSCN_UPDATE, &ha->dpc_flags);
1768
1769         /* Determine what we need to do */
1770         if (ha->current_topology == ISP_CFG_FL &&
1771             (test_bit(LOCAL_LOOP_UPDATE, &flags))) {
1772
1773                 ha->flags.rscn_queue_overflow = 1;
1774                 set_bit(RSCN_UPDATE, &flags);
1775
1776         } else if (ha->current_topology == ISP_CFG_F &&
1777             (test_bit(LOCAL_LOOP_UPDATE, &flags))) {
1778
1779                 ha->flags.rscn_queue_overflow = 1;
1780                 set_bit(RSCN_UPDATE, &flags);
1781                 clear_bit(LOCAL_LOOP_UPDATE, &flags);
1782
1783         } else if (!ha->flags.online ||
1784             (test_bit(ABORT_ISP_ACTIVE, &flags))) {
1785
1786                 ha->flags.rscn_queue_overflow = 1;
1787                 set_bit(RSCN_UPDATE, &flags);
1788                 set_bit(LOCAL_LOOP_UPDATE, &flags);
1789         }
1790
1791         if (test_bit(LOCAL_LOOP_UPDATE, &flags)) {
1792                 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
1793                         rval = QLA_FUNCTION_FAILED;
1794                 } else {
1795                         rval = qla2x00_configure_local_loop(ha);
1796                 }
1797         }
1798
1799         if (rval == QLA_SUCCESS && test_bit(RSCN_UPDATE, &flags)) {
1800                 if (LOOP_TRANSITION(ha)) {
1801                         rval = QLA_FUNCTION_FAILED;
1802                 } else {
1803                         rval = qla2x00_configure_fabric(ha);
1804                 }
1805         }
1806
1807         if (rval == QLA_SUCCESS) {
1808                 if (atomic_read(&ha->loop_down_timer) ||
1809                     test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
1810                         rval = QLA_FUNCTION_FAILED;
1811                 } else {
1812                         atomic_set(&ha->loop_state, LOOP_READY);
1813
1814                         DEBUG(printk("scsi(%ld): LOOP READY\n", ha->host_no));
1815                 }
1816         }
1817
1818         if (rval) {
1819                 DEBUG2_3(printk("%s(%ld): *** FAILED ***\n",
1820                     __func__, ha->host_no));
1821         } else {
1822                 DEBUG3(printk("%s: exiting normally\n", __func__));
1823         }
1824
1825         /* Restore state if a resync event occured during processing */
1826         if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
1827                 if (test_bit(LOCAL_LOOP_UPDATE, &save_flags))
1828                         set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1829                 if (test_bit(RSCN_UPDATE, &save_flags))
1830                         set_bit(RSCN_UPDATE, &ha->dpc_flags);
1831         }
1832
1833         return (rval);
1834 }
1835
1836
1837
1838 /*
1839  * qla2x00_configure_local_loop
1840  *      Updates Fibre Channel Device Database with local loop devices.
1841  *
1842  * Input:
1843  *      ha = adapter block pointer.
1844  *
1845  * Returns:
1846  *      0 = success.
1847  */
1848 static int
1849 qla2x00_configure_local_loop(scsi_qla_host_t *ha)
1850 {
1851         int             rval, rval2;
1852         int             found_devs;
1853         int             found;
1854         fc_port_t       *fcport, *new_fcport;
1855
1856         uint16_t        index;
1857         uint16_t        entries;
1858         char            *id_iter;
1859         uint16_t        loop_id;
1860         uint8_t         domain, area, al_pa;
1861
1862         found_devs = 0;
1863         new_fcport = NULL;
1864         entries = MAX_FIBRE_DEVICES;
1865
1866         DEBUG3(printk("scsi(%ld): Getting FCAL position map\n", ha->host_no));
1867         DEBUG3(qla2x00_get_fcal_position_map(ha, NULL));
1868
1869         /* Get list of logged in devices. */
1870         memset(ha->gid_list, 0, GID_LIST_SIZE);
1871         rval = qla2x00_get_id_list(ha, ha->gid_list, ha->gid_list_dma,
1872             &entries);
1873         if (rval != QLA_SUCCESS)
1874                 goto cleanup_allocation;
1875
1876         DEBUG3(printk("scsi(%ld): Entries in ID list (%d)\n",
1877             ha->host_no, entries));
1878         DEBUG3(qla2x00_dump_buffer((uint8_t *)ha->gid_list,
1879             entries * sizeof(struct gid_list_info)));
1880
1881         /* Allocate temporary fcport for any new fcports discovered. */
1882         new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
1883         if (new_fcport == NULL) {
1884                 rval = QLA_MEMORY_ALLOC_FAILED;
1885                 goto cleanup_allocation;
1886         }
1887         new_fcport->flags &= ~FCF_FABRIC_DEVICE;
1888
1889         /*
1890          * Mark local devices that were present with FCF_DEVICE_LOST for now.
1891          */
1892         list_for_each_entry(fcport, &ha->fcports, list) {
1893                 if (atomic_read(&fcport->state) == FCS_ONLINE &&
1894                     fcport->port_type != FCT_BROADCAST &&
1895                     (fcport->flags & FCF_FABRIC_DEVICE) == 0) {
1896
1897                         DEBUG(printk("scsi(%ld): Marking port lost, "
1898                             "loop_id=0x%04x\n",
1899                             ha->host_no, fcport->loop_id));
1900
1901                         atomic_set(&fcport->state, FCS_DEVICE_LOST);
1902                         fcport->flags &= ~FCF_FARP_DONE;
1903                 }
1904         }
1905
1906         /* Add devices to port list. */
1907         id_iter = (char *)ha->gid_list;
1908         for (index = 0; index < entries; index++) {
1909                 domain = ((struct gid_list_info *)id_iter)->domain;
1910                 area = ((struct gid_list_info *)id_iter)->area;
1911                 al_pa = ((struct gid_list_info *)id_iter)->al_pa;
1912                 if (IS_QLA2100(ha) || IS_QLA2200(ha))
1913                         loop_id = (uint16_t)
1914                             ((struct gid_list_info *)id_iter)->loop_id_2100;
1915                 else
1916                         loop_id = le16_to_cpu(
1917                             ((struct gid_list_info *)id_iter)->loop_id);
1918                 id_iter += ha->gid_list_info_size;
1919
1920                 /* Bypass reserved domain fields. */
1921                 if ((domain & 0xf0) == 0xf0)
1922                         continue;
1923
1924                 /* Bypass if not same domain and area of adapter. */
1925                 if (area && domain &&
1926                     (area != ha->d_id.b.area || domain != ha->d_id.b.domain))
1927                         continue;
1928
1929                 /* Bypass invalid local loop ID. */
1930                 if (loop_id > LAST_LOCAL_LOOP_ID)
1931                         continue;
1932
1933                 /* Fill in member data. */
1934                 new_fcport->d_id.b.domain = domain;
1935                 new_fcport->d_id.b.area = area;
1936                 new_fcport->d_id.b.al_pa = al_pa;
1937                 new_fcport->loop_id = loop_id;
1938                 rval2 = qla2x00_get_port_database(ha, new_fcport, 0);
1939                 if (rval2 != QLA_SUCCESS) {
1940                         DEBUG2(printk("scsi(%ld): Failed to retrieve fcport "
1941                             "information -- get_port_database=%x, "
1942                             "loop_id=0x%04x\n",
1943                             ha->host_no, rval2, new_fcport->loop_id));
1944                         DEBUG2(printk("scsi(%ld): Scheduling resync...\n",
1945                             ha->host_no));
1946                         set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
1947                         continue;
1948                 }
1949
1950                 /* Check for matching device in port list. */
1951                 found = 0;
1952                 fcport = NULL;
1953                 list_for_each_entry(fcport, &ha->fcports, list) {
1954                         if (memcmp(new_fcport->port_name, fcport->port_name,
1955                             WWN_SIZE))
1956                                 continue;
1957
1958                         fcport->flags &= ~(FCF_FABRIC_DEVICE |
1959                             FCF_PERSISTENT_BOUND);
1960                         fcport->loop_id = new_fcport->loop_id;
1961                         fcport->port_type = new_fcport->port_type;
1962                         fcport->d_id.b24 = new_fcport->d_id.b24;
1963                         memcpy(fcport->node_name, new_fcport->node_name,
1964                             WWN_SIZE);
1965
1966                         found++;
1967                         break;
1968                 }
1969
1970                 if (!found) {
1971                         /* New device, add to fcports list. */
1972                         new_fcport->flags &= ~FCF_PERSISTENT_BOUND;
1973                         list_add_tail(&new_fcport->list, &ha->fcports);
1974
1975                         /* Allocate a new replacement fcport. */
1976                         fcport = new_fcport;
1977                         new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
1978                         if (new_fcport == NULL) {
1979                                 rval = QLA_MEMORY_ALLOC_FAILED;
1980                                 goto cleanup_allocation;
1981                         }
1982                         new_fcport->flags &= ~FCF_FABRIC_DEVICE;
1983                 }
1984
1985                 qla2x00_update_fcport(ha, fcport);
1986
1987                 found_devs++;
1988         }
1989
1990 cleanup_allocation:
1991         kfree(new_fcport);
1992
1993         if (rval != QLA_SUCCESS) {
1994                 DEBUG2(printk("scsi(%ld): Configure local loop error exit: "
1995                     "rval=%x\n", ha->host_no, rval));
1996         }
1997
1998         if (found_devs) {
1999                 ha->device_flags |= DFLG_LOCAL_DEVICES;
2000                 ha->device_flags &= ~DFLG_RETRY_LOCAL_DEVICES;
2001         }
2002
2003         return (rval);
2004 }
2005
2006 static void
2007 qla2x00_probe_for_all_luns(scsi_qla_host_t *ha)
2008 {
2009         fc_port_t       *fcport;
2010
2011         qla2x00_mark_all_devices_lost(ha);
2012         list_for_each_entry(fcport, &ha->fcports, list) {
2013                 if (fcport->port_type != FCT_TARGET)
2014                         continue;
2015
2016                 qla2x00_update_fcport(ha, fcport);
2017         }
2018 }
2019
2020 /*
2021  * qla2x00_update_fcport
2022  *      Updates device on list.
2023  *
2024  * Input:
2025  *      ha = adapter block pointer.
2026  *      fcport = port structure pointer.
2027  *
2028  * Return:
2029  *      0  - Success
2030  *  BIT_0 - error
2031  *
2032  * Context:
2033  *      Kernel context.
2034  */
2035 static void
2036 qla2x00_update_fcport(scsi_qla_host_t *ha, fc_port_t *fcport)
2037 {
2038         uint16_t        index;
2039         unsigned long flags;
2040         srb_t *sp;
2041
2042         fcport->ha = ha;
2043         fcport->login_retry = 0;
2044         fcport->port_login_retry_count = ha->port_down_retry_count *
2045             PORT_RETRY_TIME;
2046         atomic_set(&fcport->port_down_timer, ha->port_down_retry_count *
2047             PORT_RETRY_TIME);
2048         fcport->flags &= ~FCF_LOGIN_NEEDED;
2049
2050         /*
2051          * Check for outstanding cmd on tape Bypass LUN discovery if active
2052          * command on tape.
2053          */
2054         if (fcport->flags & FCF_TAPE_PRESENT) {
2055                 spin_lock_irqsave(&ha->hardware_lock, flags);
2056                 for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) {
2057                         fc_port_t *sfcp;
2058
2059                         if ((sp = ha->outstanding_cmds[index]) != 0) {
2060                                 sfcp = sp->fcport;
2061                                 if (sfcp == fcport) {
2062                                         atomic_set(&fcport->state, FCS_ONLINE);
2063                                         spin_unlock_irqrestore(
2064                                             &ha->hardware_lock, flags);
2065                                         return;
2066                                 }
2067                         }
2068                 }
2069                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2070         }
2071
2072         if (fcport->port_type == FCT_INITIATOR ||
2073             fcport->port_type == FCT_BROADCAST)
2074                 fcport->device_type = TYPE_PROCESSOR;
2075
2076         atomic_set(&fcport->state, FCS_ONLINE);
2077
2078         if (ha->flags.init_done)
2079                 qla2x00_reg_remote_port(ha, fcport);
2080 }
2081
2082 void
2083 qla2x00_reg_remote_port(scsi_qla_host_t *ha, fc_port_t *fcport)
2084 {
2085         struct fc_rport_identifiers rport_ids;
2086         struct fc_rport *rport;
2087
2088         if (fcport->rport) {
2089                 fc_remote_port_delete(fcport->rport);
2090                 fcport->rport = NULL;
2091         }
2092
2093         rport_ids.node_name = wwn_to_u64(fcport->node_name);
2094         rport_ids.port_name = wwn_to_u64(fcport->port_name);
2095         rport_ids.port_id = fcport->d_id.b.domain << 16 |
2096             fcport->d_id.b.area << 8 | fcport->d_id.b.al_pa;
2097         rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
2098         fcport->rport = rport = fc_remote_port_add(ha->host, 0, &rport_ids);
2099         if (!rport) {
2100                 qla_printk(KERN_WARNING, ha,
2101                     "Unable to allocate fc remote port!\n");
2102                 return;
2103         }
2104         *((fc_port_t **)rport->dd_data) = fcport;
2105         rport->supported_classes = fcport->supported_classes;
2106
2107         rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
2108         if (fcport->port_type == FCT_INITIATOR)
2109                 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
2110         if (fcport->port_type == FCT_TARGET)
2111                 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
2112         fc_remote_port_rolechg(rport, rport_ids.roles);
2113
2114         if (rport->scsi_target_id != -1 &&
2115             rport->scsi_target_id < ha->host->max_id)
2116                 fcport->os_target_id = rport->scsi_target_id;
2117 }
2118
2119 /*
2120  * qla2x00_configure_fabric
2121  *      Setup SNS devices with loop ID's.
2122  *
2123  * Input:
2124  *      ha = adapter block pointer.
2125  *
2126  * Returns:
2127  *      0 = success.
2128  *      BIT_0 = error
2129  */
2130 static int
2131 qla2x00_configure_fabric(scsi_qla_host_t *ha)
2132 {
2133         int     rval, rval2;
2134         fc_port_t       *fcport, *fcptemp;
2135         uint16_t        next_loopid;
2136         uint16_t        mb[MAILBOX_REGISTER_COUNT];
2137         uint16_t        loop_id;
2138         LIST_HEAD(new_fcports);
2139
2140         /* If FL port exists, then SNS is present */
2141         if (IS_QLA24XX(ha) || IS_QLA25XX(ha))
2142                 loop_id = NPH_F_PORT;
2143         else
2144                 loop_id = SNS_FL_PORT;
2145         rval = qla2x00_get_port_name(ha, loop_id, NULL, 0);
2146         if (rval != QLA_SUCCESS) {
2147                 DEBUG2(printk("scsi(%ld): MBC_GET_PORT_NAME Failed, No FL "
2148                     "Port\n", ha->host_no));
2149
2150                 ha->device_flags &= ~SWITCH_FOUND;
2151                 return (QLA_SUCCESS);
2152         }
2153
2154         /* Mark devices that need re-synchronization. */
2155         rval2 = qla2x00_device_resync(ha);
2156         if (rval2 == QLA_RSCNS_HANDLED) {
2157                 /* No point doing the scan, just continue. */
2158                 return (QLA_SUCCESS);
2159         }
2160         do {
2161                 /* FDMI support. */
2162                 if (ql2xfdmienable &&
2163                     test_and_clear_bit(REGISTER_FDMI_NEEDED, &ha->dpc_flags))
2164                         qla2x00_fdmi_register(ha);
2165
2166                 /* Ensure we are logged into the SNS. */
2167                 if (IS_QLA24XX(ha) || IS_QLA25XX(ha))
2168                         loop_id = NPH_SNS;
2169                 else
2170                         loop_id = SIMPLE_NAME_SERVER;
2171                 ha->isp_ops.fabric_login(ha, loop_id, 0xff, 0xff,
2172                     0xfc, mb, BIT_1 | BIT_0);
2173                 if (mb[0] != MBS_COMMAND_COMPLETE) {
2174                         DEBUG2(qla_printk(KERN_INFO, ha,
2175                             "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x "
2176                             "mb[2]=%x mb[6]=%x mb[7]=%x\n", loop_id,
2177                             mb[0], mb[1], mb[2], mb[6], mb[7]));
2178                         return (QLA_SUCCESS);
2179                 }
2180
2181                 if (test_and_clear_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags)) {
2182                         if (qla2x00_rft_id(ha)) {
2183                                 /* EMPTY */
2184                                 DEBUG2(printk("scsi(%ld): Register FC-4 "
2185                                     "TYPE failed.\n", ha->host_no));
2186                         }
2187                         if (qla2x00_rff_id(ha)) {
2188                                 /* EMPTY */
2189                                 DEBUG2(printk("scsi(%ld): Register FC-4 "
2190                                     "Features failed.\n", ha->host_no));
2191                         }
2192                         if (qla2x00_rnn_id(ha)) {
2193                                 /* EMPTY */
2194                                 DEBUG2(printk("scsi(%ld): Register Node Name "
2195                                     "failed.\n", ha->host_no));
2196                         } else if (qla2x00_rsnn_nn(ha)) {
2197                                 /* EMPTY */
2198                                 DEBUG2(printk("scsi(%ld): Register Symbolic "
2199                                     "Node Name failed.\n", ha->host_no));
2200                         }
2201                 }
2202
2203                 rval = qla2x00_find_all_fabric_devs(ha, &new_fcports);
2204                 if (rval != QLA_SUCCESS)
2205                         break;
2206
2207                 /*
2208                  * Logout all previous fabric devices marked lost, except
2209                  * tape devices.
2210                  */
2211                 list_for_each_entry(fcport, &ha->fcports, list) {
2212                         if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2213                                 break;
2214
2215                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0)
2216                                 continue;
2217
2218                         if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2219                                 qla2x00_mark_device_lost(ha, fcport,
2220                                     ql2xplogiabsentdevice);
2221                                 if (fcport->loop_id != FC_NO_LOOP_ID &&
2222                                     (fcport->flags & FCF_TAPE_PRESENT) == 0 &&
2223                                     fcport->port_type != FCT_INITIATOR &&
2224                                     fcport->port_type != FCT_BROADCAST) {
2225
2226                                         ha->isp_ops.fabric_logout(ha,
2227                                             fcport->loop_id,
2228                                             fcport->d_id.b.domain,
2229                                             fcport->d_id.b.area,
2230                                             fcport->d_id.b.al_pa);
2231                                         fcport->loop_id = FC_NO_LOOP_ID;
2232                                 }
2233                         }
2234                 }
2235
2236                 /* Starting free loop ID. */
2237                 next_loopid = ha->min_external_loopid;
2238
2239                 /*
2240                  * Scan through our port list and login entries that need to be
2241                  * logged in.
2242                  */
2243                 list_for_each_entry(fcport, &ha->fcports, list) {
2244                         if (atomic_read(&ha->loop_down_timer) ||
2245                             test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2246                                 break;
2247
2248                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 ||
2249                             (fcport->flags & FCF_LOGIN_NEEDED) == 0)
2250                                 continue;
2251
2252                         if (fcport->loop_id == FC_NO_LOOP_ID) {
2253                                 fcport->loop_id = next_loopid;
2254                                 rval = qla2x00_find_new_loop_id(ha, fcport);
2255                                 if (rval != QLA_SUCCESS) {
2256                                         /* Ran out of IDs to use */
2257                                         break;
2258                                 }
2259                         }
2260                         /* Login and update database */
2261                         qla2x00_fabric_dev_login(ha, fcport, &next_loopid);
2262                 }
2263
2264                 /* Exit if out of loop IDs. */
2265                 if (rval != QLA_SUCCESS) {
2266                         break;
2267                 }
2268
2269                 /*
2270                  * Login and add the new devices to our port list.
2271                  */
2272                 list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) {
2273                         if (atomic_read(&ha->loop_down_timer) ||
2274                             test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2275                                 break;
2276
2277                         /* Find a new loop ID to use. */
2278                         fcport->loop_id = next_loopid;
2279                         rval = qla2x00_find_new_loop_id(ha, fcport);
2280                         if (rval != QLA_SUCCESS) {
2281                                 /* Ran out of IDs to use */
2282                                 break;
2283                         }
2284
2285                         /* Remove device from the new list and add it to DB */
2286                         list_del(&fcport->list);
2287                         list_add_tail(&fcport->list, &ha->fcports);
2288
2289                         /* Login and update database */
2290                         qla2x00_fabric_dev_login(ha, fcport, &next_loopid);
2291                 }
2292         } while (0);
2293
2294         /* Free all new device structures not processed. */
2295         list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) {
2296                 list_del(&fcport->list);
2297                 kfree(fcport);
2298         }
2299
2300         if (rval) {
2301                 DEBUG2(printk("scsi(%ld): Configure fabric error exit: "
2302                     "rval=%d\n", ha->host_no, rval));
2303         }
2304
2305         return (rval);
2306 }
2307
2308
2309 /*
2310  * qla2x00_find_all_fabric_devs
2311  *
2312  * Input:
2313  *      ha = adapter block pointer.
2314  *      dev = database device entry pointer.
2315  *
2316  * Returns:
2317  *      0 = success.
2318  *
2319  * Context:
2320  *      Kernel context.
2321  */
2322 static int
2323 qla2x00_find_all_fabric_devs(scsi_qla_host_t *ha, struct list_head *new_fcports)
2324 {
2325         int             rval;
2326         uint16_t        loop_id;
2327         fc_port_t       *fcport, *new_fcport, *fcptemp;
2328         int             found;
2329
2330         sw_info_t       *swl;
2331         int             swl_idx;
2332         int             first_dev, last_dev;
2333         port_id_t       wrap, nxt_d_id;
2334
2335         rval = QLA_SUCCESS;
2336
2337         /* Try GID_PT to get device list, else GAN. */
2338         swl = kmalloc(sizeof(sw_info_t) * MAX_FIBRE_DEVICES, GFP_ATOMIC);
2339         if (swl == NULL) {
2340                 /*EMPTY*/
2341                 DEBUG2(printk("scsi(%ld): GID_PT allocations failed, fallback "
2342                     "on GA_NXT\n", ha->host_no));
2343         } else {
2344                 memset(swl, 0, sizeof(sw_info_t) * MAX_FIBRE_DEVICES);
2345                 if (qla2x00_gid_pt(ha, swl) != QLA_SUCCESS) {
2346                         kfree(swl);
2347                         swl = NULL;
2348                 } else if (qla2x00_gpn_id(ha, swl) != QLA_SUCCESS) {
2349                         kfree(swl);
2350                         swl = NULL;
2351                 } else if (qla2x00_gnn_id(ha, swl) != QLA_SUCCESS) {
2352                         kfree(swl);
2353                         swl = NULL;
2354                 }
2355         }
2356         swl_idx = 0;
2357
2358         /* Allocate temporary fcport for any new fcports discovered. */
2359         new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
2360         if (new_fcport == NULL) {
2361                 kfree(swl);
2362                 return (QLA_MEMORY_ALLOC_FAILED);
2363         }
2364         new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
2365
2366         /* Set start port ID scan at adapter ID. */
2367         first_dev = 1;
2368         last_dev = 0;
2369
2370         /* Starting free loop ID. */
2371         loop_id = ha->min_external_loopid;
2372         for (; loop_id <= ha->last_loop_id; loop_id++) {
2373                 if (qla2x00_is_reserved_id(ha, loop_id))
2374                         continue;
2375
2376                 if (atomic_read(&ha->loop_down_timer) || LOOP_TRANSITION(ha))
2377                         break;
2378
2379                 if (swl != NULL) {
2380                         if (last_dev) {
2381                                 wrap.b24 = new_fcport->d_id.b24;
2382                         } else {
2383                                 new_fcport->d_id.b24 = swl[swl_idx].d_id.b24;
2384                                 memcpy(new_fcport->node_name,
2385                                     swl[swl_idx].node_name, WWN_SIZE);
2386                                 memcpy(new_fcport->port_name,
2387                                     swl[swl_idx].port_name, WWN_SIZE);
2388
2389                                 if (swl[swl_idx].d_id.b.rsvd_1 != 0) {
2390                                         last_dev = 1;
2391                                 }
2392                                 swl_idx++;
2393                         }
2394                 } else {
2395                         /* Send GA_NXT to the switch */
2396                         rval = qla2x00_ga_nxt(ha, new_fcport);
2397                         if (rval != QLA_SUCCESS) {
2398                                 qla_printk(KERN_WARNING, ha,
2399                                     "SNS scan failed -- assuming zero-entry "
2400                                     "result...\n");
2401                                 list_for_each_entry_safe(fcport, fcptemp,
2402                                     new_fcports, list) {
2403                                         list_del(&fcport->list);
2404                                         kfree(fcport);
2405                                 }
2406                                 rval = QLA_SUCCESS;
2407                                 break;
2408                         }
2409                 }
2410
2411                 /* If wrap on switch device list, exit. */
2412                 if (first_dev) {
2413                         wrap.b24 = new_fcport->d_id.b24;
2414                         first_dev = 0;
2415                 } else if (new_fcport->d_id.b24 == wrap.b24) {
2416                         DEBUG2(printk("scsi(%ld): device wrap (%02x%02x%02x)\n",
2417                             ha->host_no, new_fcport->d_id.b.domain,
2418                             new_fcport->d_id.b.area, new_fcport->d_id.b.al_pa));
2419                         break;
2420                 }
2421
2422                 /* Bypass if host adapter. */
2423                 if (new_fcport->d_id.b24 == ha->d_id.b24)
2424                         continue;
2425
2426                 /* Bypass if same domain and area of adapter. */
2427                 if (((new_fcport->d_id.b24 & 0xffff00) ==
2428                     (ha->d_id.b24 & 0xffff00)) && ha->current_topology ==
2429                         ISP_CFG_FL)
2430                             continue;
2431
2432                 /* Bypass reserved domain fields. */
2433                 if ((new_fcport->d_id.b.domain & 0xf0) == 0xf0)
2434                         continue;
2435
2436                 /* Locate matching device in database. */
2437                 found = 0;
2438                 list_for_each_entry(fcport, &ha->fcports, list) {
2439                         if (memcmp(new_fcport->port_name, fcport->port_name,
2440                             WWN_SIZE))
2441                                 continue;
2442
2443                         found++;
2444
2445                         /*
2446                          * If address the same and state FCS_ONLINE, nothing
2447                          * changed.
2448                          */
2449                         if (fcport->d_id.b24 == new_fcport->d_id.b24 &&
2450                             atomic_read(&fcport->state) == FCS_ONLINE) {
2451                                 break;
2452                         }
2453
2454                         /*
2455                          * If device was not a fabric device before.
2456                          */
2457                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) {
2458                                 fcport->d_id.b24 = new_fcport->d_id.b24;
2459                                 fcport->loop_id = FC_NO_LOOP_ID;
2460                                 fcport->flags |= (FCF_FABRIC_DEVICE |
2461                                     FCF_LOGIN_NEEDED);
2462                                 fcport->flags &= ~FCF_PERSISTENT_BOUND;
2463                                 break;
2464                         }
2465
2466                         /*
2467                          * Port ID changed or device was marked to be updated;
2468                          * Log it out if still logged in and mark it for
2469                          * relogin later.
2470                          */
2471                         fcport->d_id.b24 = new_fcport->d_id.b24;
2472                         fcport->flags |= FCF_LOGIN_NEEDED;
2473                         if (fcport->loop_id != FC_NO_LOOP_ID &&
2474                             (fcport->flags & FCF_TAPE_PRESENT) == 0 &&
2475                             fcport->port_type != FCT_INITIATOR &&
2476                             fcport->port_type != FCT_BROADCAST) {
2477                                 ha->isp_ops.fabric_logout(ha, fcport->loop_id,
2478                                     fcport->d_id.b.domain, fcport->d_id.b.area,
2479                                     fcport->d_id.b.al_pa);
2480                                 fcport->loop_id = FC_NO_LOOP_ID;
2481                         }
2482
2483                         break;
2484                 }
2485
2486                 if (found)
2487                         continue;
2488
2489                 /* If device was not in our fcports list, then add it. */
2490                 list_add_tail(&new_fcport->list, new_fcports);
2491
2492                 /* Allocate a new replacement fcport. */
2493                 nxt_d_id.b24 = new_fcport->d_id.b24;
2494                 new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
2495                 if (new_fcport == NULL) {
2496                         kfree(swl);
2497                         return (QLA_MEMORY_ALLOC_FAILED);
2498                 }
2499                 new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
2500                 new_fcport->d_id.b24 = nxt_d_id.b24;
2501         }
2502
2503         kfree(swl);
2504         kfree(new_fcport);
2505
2506         if (!list_empty(new_fcports))
2507                 ha->device_flags |= DFLG_FABRIC_DEVICES;
2508
2509         return (rval);
2510 }
2511
2512 /*
2513  * qla2x00_find_new_loop_id
2514  *      Scan through our port list and find a new usable loop ID.
2515  *
2516  * Input:
2517  *      ha:     adapter state pointer.
2518  *      dev:    port structure pointer.
2519  *
2520  * Returns:
2521  *      qla2x00 local function return status code.
2522  *
2523  * Context:
2524  *      Kernel context.
2525  */
2526 int
2527 qla2x00_find_new_loop_id(scsi_qla_host_t *ha, fc_port_t *dev)
2528 {
2529         int     rval;
2530         int     found;
2531         fc_port_t *fcport;
2532         uint16_t first_loop_id;
2533
2534         rval = QLA_SUCCESS;
2535
2536         /* Save starting loop ID. */
2537         first_loop_id = dev->loop_id;
2538
2539         for (;;) {
2540                 /* Skip loop ID if already used by adapter. */
2541                 if (dev->loop_id == ha->loop_id) {
2542                         dev->loop_id++;
2543                 }
2544
2545                 /* Skip reserved loop IDs. */
2546                 while (qla2x00_is_reserved_id(ha, dev->loop_id)) {
2547                         dev->loop_id++;
2548                 }
2549
2550                 /* Reset loop ID if passed the end. */
2551                 if (dev->loop_id > ha->last_loop_id) {
2552                         /* first loop ID. */
2553                         dev->loop_id = ha->min_external_loopid;
2554                 }
2555
2556                 /* Check for loop ID being already in use. */
2557                 found = 0;
2558                 fcport = NULL;
2559                 list_for_each_entry(fcport, &ha->fcports, list) {
2560                         if (fcport->loop_id == dev->loop_id && fcport != dev) {
2561                                 /* ID possibly in use */
2562                                 found++;
2563                                 break;
2564                         }
2565                 }
2566
2567                 /* If not in use then it is free to use. */
2568                 if (!found) {
2569                         break;
2570                 }
2571
2572                 /* ID in use. Try next value. */
2573                 dev->loop_id++;
2574
2575                 /* If wrap around. No free ID to use. */
2576                 if (dev->loop_id == first_loop_id) {
2577                         dev->loop_id = FC_NO_LOOP_ID;
2578                         rval = QLA_FUNCTION_FAILED;
2579                         break;
2580                 }
2581         }
2582
2583         return (rval);
2584 }
2585
2586 /*
2587  * qla2x00_device_resync
2588  *      Marks devices in the database that needs resynchronization.
2589  *
2590  * Input:
2591  *      ha = adapter block pointer.
2592  *
2593  * Context:
2594  *      Kernel context.
2595  */
2596 static int
2597 qla2x00_device_resync(scsi_qla_host_t *ha)
2598 {
2599         int     rval;
2600         int     rval2;
2601         uint32_t mask;
2602         fc_port_t *fcport;
2603         uint32_t rscn_entry;
2604         uint8_t rscn_out_iter;
2605         uint8_t format;
2606         port_id_t d_id;
2607
2608         rval = QLA_RSCNS_HANDLED;
2609
2610         while (ha->rscn_out_ptr != ha->rscn_in_ptr ||
2611             ha->flags.rscn_queue_overflow) {
2612
2613                 rscn_entry = ha->rscn_queue[ha->rscn_out_ptr];
2614                 format = MSB(MSW(rscn_entry));
2615                 d_id.b.domain = LSB(MSW(rscn_entry));
2616                 d_id.b.area = MSB(LSW(rscn_entry));
2617                 d_id.b.al_pa = LSB(LSW(rscn_entry));
2618
2619                 DEBUG(printk("scsi(%ld): RSCN queue entry[%d] = "
2620                     "[%02x/%02x%02x%02x].\n",
2621                     ha->host_no, ha->rscn_out_ptr, format, d_id.b.domain,
2622                     d_id.b.area, d_id.b.al_pa));
2623
2624                 ha->rscn_out_ptr++;
2625                 if (ha->rscn_out_ptr == MAX_RSCN_COUNT)
2626                         ha->rscn_out_ptr = 0;
2627
2628                 /* Skip duplicate entries. */
2629                 for (rscn_out_iter = ha->rscn_out_ptr;
2630                     !ha->flags.rscn_queue_overflow &&
2631                     rscn_out_iter != ha->rscn_in_ptr;
2632                     rscn_out_iter = (rscn_out_iter ==
2633                         (MAX_RSCN_COUNT - 1)) ? 0: rscn_out_iter + 1) {
2634
2635                         if (rscn_entry != ha->rscn_queue[rscn_out_iter])
2636                                 break;
2637
2638                         DEBUG(printk("scsi(%ld): Skipping duplicate RSCN queue "
2639                             "entry found at [%d].\n", ha->host_no,
2640                             rscn_out_iter));
2641
2642                         ha->rscn_out_ptr = rscn_out_iter;
2643                 }
2644
2645                 /* Queue overflow, set switch default case. */
2646                 if (ha->flags.rscn_queue_overflow) {
2647                         DEBUG(printk("scsi(%ld): device_resync: rscn "
2648                             "overflow.\n", ha->host_no));
2649
2650                         format = 3;
2651                         ha->flags.rscn_queue_overflow = 0;
2652                 }
2653
2654                 switch (format) {
2655                 case 0:
2656                         if (!IS_QLA2100(ha) && !IS_QLA2200(ha) &&
2657                             !IS_QLA6312(ha) && !IS_QLA6322(ha) &&
2658                             !IS_QLA24XX(ha) && !IS_QLA25XX(ha) &&
2659                             ha->flags.init_done) {
2660                                 /* Handle port RSCN via asyncronous IOCBs */
2661                                 rval2 = qla2x00_handle_port_rscn(ha, rscn_entry,
2662                                     NULL, 0);
2663                                 if (rval2 == QLA_SUCCESS)
2664                                         continue;
2665                         }
2666                         mask = 0xffffff;
2667                         break;
2668                 case 1:
2669                         mask = 0xffff00;
2670                         break;
2671                 case 2:
2672                         mask = 0xff0000;
2673                         break;
2674                 default:
2675                         mask = 0x0;
2676                         d_id.b24 = 0;
2677                         ha->rscn_out_ptr = ha->rscn_in_ptr;
2678                         break;
2679                 }
2680
2681                 rval = QLA_SUCCESS;
2682
2683                 /* Abort any outstanding IO descriptors. */
2684                 if (!IS_QLA2100(ha) && !IS_QLA2200(ha))
2685                         qla2x00_cancel_io_descriptors(ha);
2686
2687                 list_for_each_entry(fcport, &ha->fcports, list) {
2688                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 ||
2689                             (fcport->d_id.b24 & mask) != d_id.b24 ||
2690                             fcport->port_type == FCT_BROADCAST)
2691                                 continue;
2692
2693                         if (atomic_read(&fcport->state) == FCS_ONLINE) {
2694                                 if (format != 3 ||
2695                                     fcport->port_type != FCT_INITIATOR) {
2696                                         qla2x00_mark_device_lost(ha, fcport, 0);
2697                                 }
2698                         }
2699                         fcport->flags &= ~FCF_FARP_DONE;
2700                 }
2701         }
2702         return (rval);
2703 }
2704
2705 /*
2706  * qla2x00_fabric_dev_login
2707  *      Login fabric target device and update FC port database.
2708  *
2709  * Input:
2710  *      ha:             adapter state pointer.
2711  *      fcport:         port structure list pointer.
2712  *      next_loopid:    contains value of a new loop ID that can be used
2713  *                      by the next login attempt.
2714  *
2715  * Returns:
2716  *      qla2x00 local function return status code.
2717  *
2718  * Context:
2719  *      Kernel context.
2720  */
2721 static int
2722 qla2x00_fabric_dev_login(scsi_qla_host_t *ha, fc_port_t *fcport,
2723     uint16_t *next_loopid)
2724 {
2725         int     rval;
2726         int     retry;
2727         uint8_t opts;
2728
2729         rval = QLA_SUCCESS;
2730         retry = 0;
2731
2732         rval = qla2x00_fabric_login(ha, fcport, next_loopid);
2733         if (rval == QLA_SUCCESS) {
2734                 /* Send an ADISC to tape devices.*/
2735                 opts = 0;
2736                 if (fcport->flags & FCF_TAPE_PRESENT)
2737                         opts |= BIT_1;
2738                 rval = qla2x00_get_port_database(ha, fcport, opts);
2739                 if (rval != QLA_SUCCESS) {
2740                         ha->isp_ops.fabric_logout(ha, fcport->loop_id,
2741                             fcport->d_id.b.domain, fcport->d_id.b.area,
2742                             fcport->d_id.b.al_pa);
2743                         qla2x00_mark_device_lost(ha, fcport, 1);
2744
2745                 } else {
2746                         qla2x00_update_fcport(ha, fcport);
2747                 }
2748         }
2749
2750         return (rval);
2751 }
2752
2753 /*
2754  * qla2x00_fabric_login
2755  *      Issue fabric login command.
2756  *
2757  * Input:
2758  *      ha = adapter block pointer.
2759  *      device = pointer to FC device type structure.
2760  *
2761  * Returns:
2762  *      0 - Login successfully
2763  *      1 - Login failed
2764  *      2 - Initiator device
2765  *      3 - Fatal error
2766  */
2767 int
2768 qla2x00_fabric_login(scsi_qla_host_t *ha, fc_port_t *fcport,
2769     uint16_t *next_loopid)
2770 {
2771         int     rval;
2772         int     retry;
2773         uint16_t tmp_loopid;
2774         uint16_t mb[MAILBOX_REGISTER_COUNT];
2775
2776         retry = 0;
2777         tmp_loopid = 0;
2778
2779         for (;;) {
2780                 DEBUG(printk("scsi(%ld): Trying Fabric Login w/loop id 0x%04x "
2781                     "for port %02x%02x%02x.\n",
2782                     ha->host_no, fcport->loop_id, fcport->d_id.b.domain,
2783                     fcport->d_id.b.area, fcport->d_id.b.al_pa));
2784
2785                 /* Login fcport on switch. */
2786                 ha->isp_ops.fabric_login(ha, fcport->loop_id,
2787                     fcport->d_id.b.domain, fcport->d_id.b.area,
2788                     fcport->d_id.b.al_pa, mb, BIT_0);
2789                 if (mb[0] == MBS_PORT_ID_USED) {
2790                         /*
2791                          * Device has another loop ID.  The firmware team
2792                          * recommends the driver perform an implicit login with
2793                          * the specified ID again. The ID we just used is save
2794                          * here so we return with an ID that can be tried by
2795                          * the next login.
2796                          */
2797                         retry++;
2798                         tmp_loopid = fcport->loop_id;
2799                         fcport->loop_id = mb[1];
2800
2801                         DEBUG(printk("Fabric Login: port in use - next "
2802                             "loop id=0x%04x, port Id=%02x%02x%02x.\n",
2803                             fcport->loop_id, fcport->d_id.b.domain,
2804                             fcport->d_id.b.area, fcport->d_id.b.al_pa));
2805
2806                 } else if (mb[0] == MBS_COMMAND_COMPLETE) {
2807                         /*
2808                          * Login succeeded.
2809                          */
2810                         if (retry) {
2811                                 /* A retry occurred before. */
2812                                 *next_loopid = tmp_loopid;
2813                         } else {
2814                                 /*
2815                                  * No retry occurred before. Just increment the
2816                                  * ID value for next login.
2817                                  */
2818                                 *next_loopid = (fcport->loop_id + 1);
2819                         }
2820
2821                         if (mb[1] & BIT_0) {
2822                                 fcport->port_type = FCT_INITIATOR;
2823                         } else {
2824                                 fcport->port_type = FCT_TARGET;
2825                                 if (mb[1] & BIT_1) {
2826                                         fcport->flags |= FCF_TAPE_PRESENT;
2827                                 }
2828                         }
2829
2830                         if (mb[10] & BIT_0)
2831                                 fcport->supported_classes |= FC_COS_CLASS2;
2832                         if (mb[10] & BIT_1)
2833                                 fcport->supported_classes |= FC_COS_CLASS3;
2834
2835                         rval = QLA_SUCCESS;
2836                         break;
2837                 } else if (mb[0] == MBS_LOOP_ID_USED) {
2838                         /*
2839                          * Loop ID already used, try next loop ID.
2840                          */
2841                         fcport->loop_id++;
2842                         rval = qla2x00_find_new_loop_id(ha, fcport);
2843                         if (rval != QLA_SUCCESS) {
2844                                 /* Ran out of loop IDs to use */
2845                                 break;
2846                         }
2847                 } else if (mb[0] == MBS_COMMAND_ERROR) {
2848                         /*
2849                          * Firmware possibly timed out during login. If NO
2850                          * retries are left to do then the device is declared
2851                          * dead.
2852                          */
2853                         *next_loopid = fcport->loop_id;
2854                         ha->isp_ops.fabric_logout(ha, fcport->loop_id,
2855                             fcport->d_id.b.domain, fcport->d_id.b.area,
2856                             fcport->d_id.b.al_pa);
2857                         qla2x00_mark_device_lost(ha, fcport, 1);
2858
2859                         rval = 1;
2860                         break;
2861                 } else {
2862                         /*
2863                          * unrecoverable / not handled error
2864                          */
2865                         DEBUG2(printk("%s(%ld): failed=%x port_id=%02x%02x%02x "
2866                             "loop_id=%x jiffies=%lx.\n",
2867                             __func__, ha->host_no, mb[0],
2868                             fcport->d_id.b.domain, fcport->d_id.b.area,
2869                             fcport->d_id.b.al_pa, fcport->loop_id, jiffies));
2870
2871                         *next_loopid = fcport->loop_id;
2872                         ha->isp_ops.fabric_logout(ha, fcport->loop_id,
2873                             fcport->d_id.b.domain, fcport->d_id.b.area,
2874                             fcport->d_id.b.al_pa);
2875                         fcport->loop_id = FC_NO_LOOP_ID;
2876                         fcport->login_retry = 0;
2877
2878                         rval = 3;
2879                         break;
2880                 }
2881         }
2882
2883         return (rval);
2884 }
2885
2886 /*
2887  * qla2x00_local_device_login
2888  *      Issue local device login command.
2889  *
2890  * Input:
2891  *      ha = adapter block pointer.
2892  *      loop_id = loop id of device to login to.
2893  *
2894  * Returns (Where's the #define!!!!):
2895  *      0 - Login successfully
2896  *      1 - Login failed
2897  *      3 - Fatal error
2898  */
2899 int
2900 qla2x00_local_device_login(scsi_qla_host_t *ha, uint16_t loop_id)
2901 {
2902         int             rval;
2903         uint16_t        mb[MAILBOX_REGISTER_COUNT];
2904
2905         memset(mb, 0, sizeof(mb));
2906         rval = qla2x00_login_local_device(ha, loop_id, mb, BIT_0);
2907         if (rval == QLA_SUCCESS) {
2908                 /* Interrogate mailbox registers for any errors */
2909                 if (mb[0] == MBS_COMMAND_ERROR)
2910                         rval = 1;
2911                 else if (mb[0] == MBS_COMMAND_PARAMETER_ERROR)
2912                         /* device not in PCB table */
2913                         rval = 3;
2914         }
2915
2916         return (rval);
2917 }
2918
2919 /*
2920  *  qla2x00_loop_resync
2921  *      Resync with fibre channel devices.
2922  *
2923  * Input:
2924  *      ha = adapter block pointer.
2925  *
2926  * Returns:
2927  *      0 = success
2928  */
2929 int
2930 qla2x00_loop_resync(scsi_qla_host_t *ha)
2931 {
2932         int   rval;
2933         uint32_t wait_time;
2934
2935         rval = QLA_SUCCESS;
2936
2937         atomic_set(&ha->loop_state, LOOP_UPDATE);
2938         clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
2939         if (ha->flags.online) {
2940                 if (!(rval = qla2x00_fw_ready(ha))) {
2941                         /* Wait at most MAX_TARGET RSCNs for a stable link. */
2942                         wait_time = 256;
2943                         do {
2944                                 atomic_set(&ha->loop_state, LOOP_UPDATE);
2945
2946                                 /* Issue a marker after FW becomes ready. */
2947                                 qla2x00_marker(ha, 0, 0, MK_SYNC_ALL);
2948                                 ha->marker_needed = 0;
2949
2950                                 /* Remap devices on Loop. */
2951                                 clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2952
2953                                 qla2x00_configure_loop(ha);
2954                                 wait_time--;
2955                         } while (!atomic_read(&ha->loop_down_timer) &&
2956                                 !(test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) &&
2957                                 wait_time &&
2958                                 (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)));
2959                 }
2960         }
2961
2962         if (test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2963                 return (QLA_FUNCTION_FAILED);
2964         }
2965
2966         if (rval) {
2967                 DEBUG2_3(printk("%s(): **** FAILED ****\n", __func__));
2968         }
2969
2970         return (rval);
2971 }
2972
2973 void
2974 qla2x00_rescan_fcports(scsi_qla_host_t *ha)
2975 {
2976         int rescan_done;
2977         fc_port_t *fcport;
2978
2979         rescan_done = 0;
2980         list_for_each_entry(fcport, &ha->fcports, list) {
2981                 if ((fcport->flags & FCF_RESCAN_NEEDED) == 0)
2982                         continue;
2983
2984                 qla2x00_update_fcport(ha, fcport);
2985                 fcport->flags &= ~FCF_RESCAN_NEEDED;
2986
2987                 rescan_done = 1;
2988         }
2989         qla2x00_probe_for_all_luns(ha);
2990 }
2991
2992 /*
2993 *  qla2x00_abort_isp
2994 *      Resets ISP and aborts all outstanding commands.
2995 *
2996 * Input:
2997 *      ha           = adapter block pointer.
2998 *
2999 * Returns:
3000 *      0 = success
3001 */
3002 int
3003 qla2x00_abort_isp(scsi_qla_host_t *ha)
3004 {
3005         unsigned long flags = 0;
3006         uint16_t       cnt;
3007         srb_t          *sp;
3008         uint8_t        status = 0;
3009
3010         if (ha->flags.online) {
3011                 ha->flags.online = 0;
3012                 clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
3013
3014                 qla_printk(KERN_INFO, ha,
3015                     "Performing ISP error recovery - ha= %p.\n", ha);
3016                 ha->isp_ops.reset_chip(ha);
3017
3018                 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
3019                 if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
3020                         atomic_set(&ha->loop_state, LOOP_DOWN);
3021                         qla2x00_mark_all_devices_lost(ha);
3022                 } else {
3023                         if (!atomic_read(&ha->loop_down_timer))
3024                                 atomic_set(&ha->loop_down_timer,
3025                                     LOOP_DOWN_TIME);
3026                 }
3027
3028                 spin_lock_irqsave(&ha->hardware_lock, flags);
3029                 /* Requeue all commands in outstanding command list. */
3030                 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
3031                         sp = ha->outstanding_cmds[cnt];
3032                         if (sp) {
3033                                 ha->outstanding_cmds[cnt] = NULL;
3034                                 sp->flags = 0;
3035                                 sp->cmd->result = DID_RESET << 16;
3036                                 sp->cmd->host_scribble = (unsigned char *)NULL;
3037                                 qla2x00_sp_compl(ha, sp);
3038                         }
3039                 }
3040                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3041
3042                 ha->isp_ops.nvram_config(ha);
3043
3044                 if (!qla2x00_restart_isp(ha)) {
3045                         clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
3046
3047                         if (!atomic_read(&ha->loop_down_timer)) {
3048                                 /*
3049                                  * Issue marker command only when we are going
3050                                  * to start the I/O .
3051                                  */
3052                                 ha->marker_needed = 1;
3053                         }
3054
3055                         ha->flags.online = 1;
3056
3057                         ha->isp_ops.enable_intrs(ha);
3058
3059                         ha->isp_abort_cnt = 0;
3060                         clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
3061                 } else {        /* failed the ISP abort */
3062                         ha->flags.online = 1;
3063                         if (test_bit(ISP_ABORT_RETRY, &ha->dpc_flags)) {
3064                                 if (ha->isp_abort_cnt == 0) {
3065                                         qla_printk(KERN_WARNING, ha,
3066                                             "ISP error recovery failed - "
3067                                             "board disabled\n");
3068                                         /*
3069                                          * The next call disables the board
3070                                          * completely.
3071                                          */
3072                                         ha->isp_ops.reset_adapter(ha);
3073                                         ha->flags.online = 0;
3074                                         clear_bit(ISP_ABORT_RETRY,
3075                                             &ha->dpc_flags);
3076                                         status = 0;
3077                                 } else { /* schedule another ISP abort */
3078                                         ha->isp_abort_cnt--;
3079                                         DEBUG(printk("qla%ld: ISP abort - "
3080                                             "retry remaining %d\n",
3081                                             ha->host_no, ha->isp_abort_cnt);)
3082                                         status = 1;
3083                                 }
3084                         } else {
3085                                 ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT;
3086                                 DEBUG(printk("qla2x00(%ld): ISP error recovery "
3087                                     "- retrying (%d) more times\n",
3088                                     ha->host_no, ha->isp_abort_cnt);)
3089                                 set_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
3090                                 status = 1;
3091                         }
3092                 }
3093
3094         }
3095
3096         if (status) {
3097                 qla_printk(KERN_INFO, ha,
3098                         "qla2x00_abort_isp: **** FAILED ****\n");
3099         } else {
3100                 DEBUG(printk(KERN_INFO
3101                                 "qla2x00_abort_isp(%ld): exiting.\n",
3102                                 ha->host_no);)
3103         }
3104
3105         return(status);
3106 }
3107
3108 /*
3109 *  qla2x00_restart_isp
3110 *      restarts the ISP after a reset
3111 *
3112 * Input:
3113 *      ha = adapter block pointer.
3114 *
3115 * Returns:
3116 *      0 = success
3117 */
3118 static int
3119 qla2x00_restart_isp(scsi_qla_host_t *ha)
3120 {
3121         uint8_t         status = 0;
3122         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3123         unsigned long   flags = 0;
3124         uint32_t wait_time;
3125
3126         /* If firmware needs to be loaded */
3127         if (qla2x00_isp_firmware(ha)) {
3128                 ha->flags.online = 0;
3129                 if (!(status = ha->isp_ops.chip_diag(ha))) {
3130                         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
3131                                 status = qla2x00_setup_chip(ha);
3132                                 goto done;
3133                         }
3134
3135                         spin_lock_irqsave(&ha->hardware_lock, flags);
3136
3137                         if (!IS_QLA24XX(ha) && !IS_QLA25XX(ha)) {
3138                                 /*
3139                                  * Disable SRAM, Instruction RAM and GP RAM
3140                                  * parity.
3141                                  */
3142                                 WRT_REG_WORD(&reg->hccr,
3143                                     (HCCR_ENABLE_PARITY + 0x0));
3144                                 RD_REG_WORD(&reg->hccr);
3145                         }
3146
3147                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3148
3149                         status = qla2x00_setup_chip(ha);
3150
3151                         spin_lock_irqsave(&ha->hardware_lock, flags);
3152
3153                         if (!IS_QLA24XX(ha) && !IS_QLA25XX(ha)) {
3154                                 /* Enable proper parity */
3155                                 if (IS_QLA2300(ha))
3156                                         /* SRAM parity */
3157                                         WRT_REG_WORD(&reg->hccr,
3158                                             (HCCR_ENABLE_PARITY + 0x1));
3159                                 else
3160                                         /*
3161                                          * SRAM, Instruction RAM and GP RAM
3162                                          * parity.
3163                                          */
3164                                         WRT_REG_WORD(&reg->hccr,
3165                                             (HCCR_ENABLE_PARITY + 0x7));
3166                                 RD_REG_WORD(&reg->hccr);
3167                         }
3168
3169                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3170                 }
3171         }
3172
3173  done:
3174         if (!status && !(status = qla2x00_init_rings(ha))) {
3175                 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
3176                 if (!(status = qla2x00_fw_ready(ha))) {
3177                         DEBUG(printk("%s(): Start configure loop, "
3178                             "status = %d\n", __func__, status);)
3179
3180                         /* Issue a marker after FW becomes ready. */
3181                         qla2x00_marker(ha, 0, 0, MK_SYNC_ALL);
3182
3183                         ha->flags.online = 1;
3184                         /* Wait at most MAX_TARGET RSCNs for a stable link. */
3185                         wait_time = 256;
3186                         do {
3187                                 clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
3188                                 qla2x00_configure_loop(ha);
3189                                 wait_time--;
3190                         } while (!atomic_read(&ha->loop_down_timer) &&
3191                                 !(test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) &&
3192                                 wait_time &&
3193                                 (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)));
3194                 }
3195
3196                 /* if no cable then assume it's good */
3197                 if ((ha->device_flags & DFLG_NO_CABLE))
3198                         status = 0;
3199
3200                 DEBUG(printk("%s(): Configure loop done, status = 0x%x\n",
3201                                 __func__,
3202                                 status);)
3203         }
3204         return (status);
3205 }
3206
3207 /*
3208 * qla2x00_reset_adapter
3209 *      Reset adapter.
3210 *
3211 * Input:
3212 *      ha = adapter block pointer.
3213 */
3214 void
3215 qla2x00_reset_adapter(scsi_qla_host_t *ha)
3216 {
3217         unsigned long flags = 0;
3218         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3219
3220         ha->flags.online = 0;
3221         ha->isp_ops.disable_intrs(ha);
3222
3223         spin_lock_irqsave(&ha->hardware_lock, flags);
3224         WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
3225         RD_REG_WORD(&reg->hccr);                        /* PCI Posting. */
3226         WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
3227         RD_REG_WORD(&reg->hccr);                        /* PCI Posting. */
3228         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3229 }
3230
3231 void
3232 qla24xx_reset_adapter(scsi_qla_host_t *ha)
3233 {
3234         unsigned long flags = 0;
3235         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
3236
3237         ha->flags.online = 0;
3238         ha->isp_ops.disable_intrs(ha);
3239
3240         spin_lock_irqsave(&ha->hardware_lock, flags);
3241         WRT_REG_DWORD(&reg->hccr, HCCRX_SET_RISC_RESET);
3242         RD_REG_DWORD(&reg->hccr);
3243         WRT_REG_DWORD(&reg->hccr, HCCRX_REL_RISC_PAUSE);
3244         RD_REG_DWORD(&reg->hccr);
3245         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3246 }
3247
3248 int
3249 qla24xx_nvram_config(scsi_qla_host_t *ha)
3250 {
3251         int   rval;
3252         struct init_cb_24xx *icb;
3253         struct nvram_24xx *nv;
3254         uint32_t *dptr;
3255         uint8_t  *dptr1, *dptr2;
3256         uint32_t chksum;
3257         uint16_t cnt;
3258
3259         rval = QLA_SUCCESS;
3260         icb = (struct init_cb_24xx *)ha->init_cb;
3261         nv = (struct nvram_24xx *)ha->request_ring;
3262
3263         /* Determine NVRAM starting address. */
3264         ha->nvram_size = sizeof(struct nvram_24xx);
3265         ha->nvram_base = FA_NVRAM_FUNC0_ADDR;
3266         if (PCI_FUNC(ha->pdev->devfn))
3267                 ha->nvram_base = FA_NVRAM_FUNC1_ADDR;
3268
3269         /* Get NVRAM data and calculate checksum. */
3270         dptr = (uint32_t *)nv;
3271         ha->isp_ops.read_nvram(ha, (uint8_t *)dptr, ha->nvram_base,
3272             ha->nvram_size);
3273         for (cnt = 0, chksum = 0; cnt < ha->nvram_size >> 2; cnt++)
3274                 chksum += le32_to_cpu(*dptr++);
3275
3276         DEBUG5(printk("scsi(%ld): Contents of NVRAM\n", ha->host_no));
3277         DEBUG5(qla2x00_dump_buffer((uint8_t *)ha->request_ring,
3278             ha->nvram_size));
3279
3280         /* Bad NVRAM data, set defaults parameters. */
3281         if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' || nv->id[2] != 'P'
3282             || nv->id[3] != ' ' ||
3283             nv->nvram_version < __constant_cpu_to_le16(ICB_VERSION)) {
3284                 /* Reset NVRAM data. */
3285                 qla_printk(KERN_WARNING, ha, "Inconsistent NVRAM detected: "
3286                     "checksum=0x%x id=%c version=0x%x.\n", chksum, nv->id[0],
3287                     le16_to_cpu(nv->nvram_version));
3288                 qla_printk(KERN_WARNING, ha, "Falling back to functioning (yet "
3289                     "invalid -- WWPN) defaults.\n");
3290
3291                 /*
3292                  * Set default initialization control block.
3293                  */
3294                 memset(nv, 0, ha->nvram_size);
3295                 nv->nvram_version = __constant_cpu_to_le16(ICB_VERSION);
3296                 nv->version = __constant_cpu_to_le16(ICB_VERSION);
3297                 nv->frame_payload_size = __constant_cpu_to_le16(2048);
3298                 nv->execution_throttle = __constant_cpu_to_le16(0xFFFF);
3299                 nv->exchange_count = __constant_cpu_to_le16(0);
3300                 nv->hard_address = __constant_cpu_to_le16(124);
3301                 nv->port_name[0] = 0x21;
3302                 nv->port_name[1] = 0x00 + PCI_FUNC(ha->pdev->devfn);
3303                 nv->port_name[2] = 0x00;
3304                 nv->port_name[3] = 0xe0;
3305                 nv->port_name[4] = 0x8b;
3306                 nv->port_name[5] = 0x1c;
3307                 nv->port_name[6] = 0x55;
3308                 nv->port_name[7] = 0x86;
3309                 nv->node_name[0] = 0x20;
3310                 nv->node_name[1] = 0x00;
3311                 nv->node_name[2] = 0x00;
3312                 nv->node_name[3] = 0xe0;
3313                 nv->node_name[4] = 0x8b;
3314                 nv->node_name[5] = 0x1c;
3315                 nv->node_name[6] = 0x55;
3316                 nv->node_name[7] = 0x86;
3317                 nv->login_retry_count = __constant_cpu_to_le16(8);
3318                 nv->link_down_timeout = __constant_cpu_to_le16(200);
3319                 nv->interrupt_delay_timer = __constant_cpu_to_le16(0);
3320                 nv->login_timeout = __constant_cpu_to_le16(0);
3321                 nv->firmware_options_1 =
3322                     __constant_cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1);
3323                 nv->firmware_options_2 = __constant_cpu_to_le32(2 << 4);
3324                 nv->firmware_options_2 |= __constant_cpu_to_le32(BIT_12);
3325                 nv->firmware_options_3 = __constant_cpu_to_le32(2 << 13);
3326                 nv->host_p = __constant_cpu_to_le32(BIT_11|BIT_10);
3327                 nv->efi_parameters = __constant_cpu_to_le32(0);
3328                 nv->reset_delay = 5;
3329                 nv->max_luns_per_target = __constant_cpu_to_le16(128);
3330                 nv->port_down_retry_count = __constant_cpu_to_le16(30);
3331                 nv->link_down_timeout = __constant_cpu_to_le16(30);
3332
3333                 rval = 1;
3334         }
3335
3336         /* Reset Initialization control block */
3337         memset(icb, 0, sizeof(struct init_cb_24xx));
3338
3339         /* Copy 1st segment. */
3340         dptr1 = (uint8_t *)icb;
3341         dptr2 = (uint8_t *)&nv->version;
3342         cnt = (uint8_t *)&icb->response_q_inpointer - (uint8_t *)&icb->version;
3343         while (cnt--)
3344                 *dptr1++ = *dptr2++;
3345
3346         icb->login_retry_count = nv->login_retry_count;
3347         icb->link_down_timeout = nv->link_down_timeout;
3348
3349         /* Copy 2nd segment. */
3350         dptr1 = (uint8_t *)&icb->interrupt_delay_timer;
3351         dptr2 = (uint8_t *)&nv->interrupt_delay_timer;
3352         cnt = (uint8_t *)&icb->reserved_3 -
3353             (uint8_t *)&icb->interrupt_delay_timer;
3354         while (cnt--)
3355                 *dptr1++ = *dptr2++;
3356
3357         /*
3358          * Setup driver NVRAM options.
3359          */
3360         if (memcmp(nv->model_name, BINZERO, sizeof(nv->model_name)) != 0) {
3361                 char *st, *en;
3362                 uint16_t index;
3363
3364                 strncpy(ha->model_number, nv->model_name,
3365                     sizeof(nv->model_name));
3366                 st = en = ha->model_number;
3367                 en += sizeof(nv->model_name) - 1;
3368                 while (en > st) {
3369                         if (*en != 0x20 && *en != 0x00)
3370                                 break;
3371                         *en-- = '\0';
3372                 }
3373
3374                 index = (ha->pdev->subsystem_device & 0xff);
3375                 if (index < QLA_MODEL_NAMES)
3376                         ha->model_desc = qla2x00_model_desc[index];
3377         } else
3378                 strcpy(ha->model_number, "QLA2462");
3379
3380         /* Prepare nodename */
3381         if ((icb->firmware_options_1 & BIT_14) == 0) {
3382                 /*
3383                  * Firmware will apply the following mask if the nodename was
3384                  * not provided.
3385                  */
3386                 memcpy(icb->node_name, icb->port_name, WWN_SIZE);
3387                 icb->node_name[0] &= 0xF0;
3388         }
3389
3390         /* Set host adapter parameters. */
3391         ha->flags.disable_risc_code_load = 0;
3392         ha->flags.enable_lip_reset = 1;
3393         ha->flags.enable_lip_full_login = 1;
3394         ha->flags.enable_target_reset = 1;
3395         ha->flags.enable_led_scheme = 0;
3396
3397         ha->operating_mode =
3398             (icb->firmware_options_2 & (BIT_6 | BIT_5 | BIT_4)) >> 4;
3399
3400         memcpy(ha->fw_seriallink_options24, nv->seriallink_options,
3401             sizeof(ha->fw_seriallink_options24));
3402
3403         /* save HBA serial number */
3404         ha->serial0 = icb->port_name[5];
3405         ha->serial1 = icb->port_name[6];
3406         ha->serial2 = icb->port_name[7];
3407         ha->node_name = icb->node_name;
3408         ha->port_name = icb->port_name;
3409
3410         icb->execution_throttle = __constant_cpu_to_le16(0xFFFF);
3411
3412         ha->retry_count = le16_to_cpu(nv->login_retry_count);
3413
3414         /* Set minimum login_timeout to 4 seconds. */
3415         if (le16_to_cpu(nv->login_timeout) < ql2xlogintimeout)
3416                 nv->login_timeout = cpu_to_le16(ql2xlogintimeout);
3417         if (le16_to_cpu(nv->login_timeout) < 4)
3418                 nv->login_timeout = __constant_cpu_to_le16(4);
3419         ha->login_timeout = le16_to_cpu(nv->login_timeout);
3420         icb->login_timeout = cpu_to_le16(nv->login_timeout);
3421
3422         /* Set minimum RATOV to 200 tenths of a second. */
3423         ha->r_a_tov = 200;
3424
3425         ha->loop_reset_delay = nv->reset_delay;
3426
3427         /* Link Down Timeout = 0:
3428          *
3429          *      When Port Down timer expires we will start returning
3430          *      I/O's to OS with "DID_NO_CONNECT".
3431          *
3432          * Link Down Timeout != 0:
3433          *
3434          *       The driver waits for the link to come up after link down
3435          *       before returning I/Os to OS with "DID_NO_CONNECT".
3436          */
3437         if (le16_to_cpu(nv->link_down_timeout) == 0) {
3438                 ha->loop_down_abort_time =
3439                     (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
3440         } else {
3441                 ha->link_down_timeout = le16_to_cpu(nv->link_down_timeout);
3442                 ha->loop_down_abort_time =
3443                     (LOOP_DOWN_TIME - ha->link_down_timeout);
3444         }
3445
3446         /* Need enough time to try and get the port back. */
3447         ha->port_down_retry_count = le16_to_cpu(nv->port_down_retry_count);
3448         if (qlport_down_retry)
3449                 ha->port_down_retry_count = qlport_down_retry;
3450
3451         /* Set login_retry_count */
3452         ha->login_retry_count  = le16_to_cpu(nv->login_retry_count);
3453         if (ha->port_down_retry_count ==
3454             le16_to_cpu(nv->port_down_retry_count) &&
3455             ha->port_down_retry_count > 3)
3456                 ha->login_retry_count = ha->port_down_retry_count;
3457         else if (ha->port_down_retry_count > (int)ha->login_retry_count)
3458                 ha->login_retry_count = ha->port_down_retry_count;
3459         if (ql2xloginretrycount)
3460                 ha->login_retry_count = ql2xloginretrycount;
3461
3462         /* Enable ZIO. */
3463         if (!ha->flags.init_done) {
3464                 ha->zio_mode = le32_to_cpu(icb->firmware_options_2) &
3465                     (BIT_3 | BIT_2 | BIT_1 | BIT_0);
3466                 ha->zio_timer = le16_to_cpu(icb->interrupt_delay_timer) ?
3467                     le16_to_cpu(icb->interrupt_delay_timer): 2;
3468         }
3469         icb->firmware_options_2 &= __constant_cpu_to_le32(
3470             ~(BIT_3 | BIT_2 | BIT_1 | BIT_0));
3471         ha->flags.process_response_queue = 0;
3472         if (ha->zio_mode != QLA_ZIO_DISABLED) {
3473                 DEBUG2(printk("scsi(%ld): ZIO mode %d enabled; timer delay "
3474                     "(%d us).\n", ha->host_no, ha->zio_mode,
3475                     ha->zio_timer * 100));
3476                 qla_printk(KERN_INFO, ha,
3477                     "ZIO mode %d enabled; timer delay (%d us).\n",
3478                     ha->zio_mode, ha->zio_timer * 100);
3479
3480                 icb->firmware_options_2 |= cpu_to_le32(
3481                     (uint32_t)ha->zio_mode);
3482                 icb->interrupt_delay_timer = cpu_to_le16(ha->zio_timer);
3483                 ha->flags.process_response_queue = 1;
3484         }
3485
3486         if (rval) {
3487                 DEBUG2_3(printk(KERN_WARNING
3488                     "scsi(%ld): NVRAM configuration failed!\n", ha->host_no));
3489         }
3490         return (rval);
3491 }
3492
3493 #if defined(CONFIG_SCSI_QLA2XXX_EMBEDDED_FIRMWARE)
3494
3495 int
3496 qla2x00_load_risc(scsi_qla_host_t *ha, uint32_t *srisc_addr)
3497 {
3498         int     rval, num, i;
3499         uint32_t cnt;
3500         uint16_t *risc_code;
3501         uint32_t risc_addr, risc_size;
3502         uint16_t *req_ring;
3503         struct qla_fw_info *fw_iter;
3504
3505         rval = QLA_SUCCESS;
3506
3507         /* Load firmware sequences */
3508         fw_iter = ha->brd_info->fw_info;
3509         *srisc_addr = *ha->brd_info->fw_info->fwstart;
3510         while (fw_iter->addressing != FW_INFO_ADDR_NOMORE) {
3511                 risc_code = fw_iter->fwcode;
3512                 risc_size = *fw_iter->fwlen;
3513                 if (fw_iter->addressing == FW_INFO_ADDR_NORMAL)
3514                         risc_addr = *fw_iter->fwstart;
3515                 else
3516                         risc_addr = *fw_iter->lfwstart;
3517
3518                 num = 0;
3519                 rval = 0;
3520                 while (risc_size > 0 && !rval) {
3521                         cnt = (uint16_t)(ha->fw_transfer_size >> 1);
3522                         if (cnt > risc_size)
3523                                 cnt = risc_size;
3524
3525                         DEBUG7(printk("scsi(%ld): Loading risc segment@ "
3526                             "addr %p, number of bytes 0x%x, offset 0x%lx.\n",
3527                             ha->host_no, risc_code, cnt, risc_addr));
3528
3529                         req_ring = (uint16_t *)ha->request_ring;
3530                         for (i = 0; i < cnt; i++)
3531                                 req_ring[i] = cpu_to_le16(risc_code[i]);
3532
3533                         rval = qla2x00_load_ram(ha, ha->request_dma, risc_addr,
3534                             cnt);
3535                         if (rval) {
3536                                 DEBUG(printk("scsi(%ld): [ERROR] Failed to "
3537                                     "load segment %d of firmware\n",
3538                                     ha->host_no, num));
3539                                 qla_printk(KERN_WARNING, ha,
3540                                     "[ERROR] Failed to load segment %d of "
3541                                     "firmware\n", num);
3542
3543                                 qla2x00_dump_regs(ha);
3544                                 break;
3545                         }
3546
3547                         risc_code += cnt;
3548                         risc_addr += cnt;
3549                         risc_size -= cnt;
3550                         num++;
3551                 }
3552
3553                 /* Next firmware sequence */
3554                 fw_iter++;
3555         }
3556         return rval;
3557 }
3558
3559 int
3560 qla24xx_load_risc(scsi_qla_host_t *ha, uint32_t *srisc_addr)
3561 {
3562         int     rval, num, i;
3563         uint32_t cnt;
3564         uint32_t *risc_code;
3565         uint32_t risc_addr, risc_size;
3566         uint32_t *req_ring;
3567         struct qla_fw_info *fw_iter;
3568
3569         rval = QLA_SUCCESS;
3570
3571         /* Load firmware sequences */
3572         fw_iter = ha->brd_info->fw_info;
3573         *srisc_addr = *((uint32_t *)fw_iter->lfwstart);
3574         while (fw_iter->addressing != FW_INFO_ADDR_NOMORE) {
3575                 risc_code = (uint32_t *)fw_iter->fwcode;
3576                 risc_size = *((uint32_t *)fw_iter->fwlen);
3577                 risc_addr = *((uint32_t *)fw_iter->lfwstart);
3578
3579                 num = 0;
3580                 rval = 0;
3581                 while (risc_size > 0 && !rval) {
3582                         cnt = (uint32_t)(ha->fw_transfer_size >> 2);
3583                         if (cnt > risc_size)
3584                                 cnt = risc_size;
3585
3586                         DEBUG7(printk("scsi(%ld): Loading risc segment@ "
3587                             "addr %p, number of bytes 0x%x, offset 0x%lx.\n",
3588                             ha->host_no, risc_code, cnt, risc_addr));
3589
3590                         req_ring = (uint32_t *)ha->request_ring;
3591                         for (i = 0; i < cnt; i++)
3592                                 req_ring[i] = cpu_to_le32(risc_code[i]);
3593
3594                         rval = qla2x00_load_ram(ha, ha->request_dma, risc_addr,
3595                             cnt);
3596                         if (rval) {
3597                                 DEBUG(printk("scsi(%ld): [ERROR] Failed to "
3598                                     "load segment %d of firmware\n",
3599                                     ha->host_no, num));
3600                                 qla_printk(KERN_WARNING, ha,
3601                                     "[ERROR] Failed to load segment %d of "
3602                                     "firmware\n", num);
3603
3604                                 qla2x00_dump_regs(ha);
3605                                 break;
3606                         }
3607
3608                         risc_code += cnt;
3609                         risc_addr += cnt;
3610                         risc_size -= cnt;
3611                         num++;
3612                 }
3613
3614                 /* Next firmware sequence */
3615                 fw_iter++;
3616         }
3617         return rval;
3618 }
3619
3620 int
3621 qla24xx_load_risc_flash(scsi_qla_host_t *ha, uint32_t *srisc_addr)
3622 {
3623         int     rval;
3624         int     segments, fragment;
3625         uint32_t faddr;
3626         uint32_t *dcode, dlen;
3627         uint32_t risc_addr;
3628         uint32_t risc_size;
3629         uint32_t i;
3630
3631         rval = QLA_SUCCESS;
3632
3633         segments = FA_RISC_CODE_SEGMENTS;
3634         faddr = FA_RISC_CODE_ADDR;
3635         dcode = (uint32_t *)ha->request_ring;
3636         *srisc_addr = 0;
3637
3638         /* Validate firmware image by checking version. */
3639         qla24xx_read_flash_data(ha, dcode, faddr + 4, 4);
3640         for (i = 0; i < 4; i++)
3641                 dcode[i] = be32_to_cpu(dcode[i]);
3642         if ((dcode[0] == 0xffffffff && dcode[1] == 0xffffffff &&
3643             dcode[2] == 0xffffffff && dcode[3] == 0xffffffff) ||
3644             (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
3645                 dcode[3] == 0)) {
3646                 qla_printk(KERN_WARNING, ha,
3647                     "Unable to verify integrity of flash firmware image!\n");
3648                 qla_printk(KERN_WARNING, ha,
3649                     "Firmware data: %08x %08x %08x %08x!\n", dcode[0],
3650                     dcode[1], dcode[2], dcode[3]);
3651
3652                 return QLA_FUNCTION_FAILED;
3653         }
3654
3655         while (segments && rval == QLA_SUCCESS) {
3656                 /* Read segment's load information. */
3657                 qla24xx_read_flash_data(ha, dcode, faddr, 4);
3658
3659                 risc_addr = be32_to_cpu(dcode[2]);
3660                 *srisc_addr = *srisc_addr == 0 ? risc_addr : *srisc_addr;
3661                 risc_size = be32_to_cpu(dcode[3]);
3662
3663                 fragment = 0;
3664                 while (risc_size > 0 && rval == QLA_SUCCESS) {
3665                         dlen = (uint32_t)(ha->fw_transfer_size >> 2);
3666                         if (dlen > risc_size)
3667                                 dlen = risc_size;
3668
3669                         DEBUG7(printk("scsi(%ld): Loading risc segment@ risc "
3670                             "addr %x, number of dwords 0x%x, offset 0x%x.\n",
3671                             ha->host_no, risc_addr, dlen, faddr));
3672
3673                         qla24xx_read_flash_data(ha, dcode, faddr, dlen);
3674                         for (i = 0; i < dlen; i++)
3675                                 dcode[i] = swab32(dcode[i]);
3676
3677                         rval = qla2x00_load_ram(ha, ha->request_dma, risc_addr,
3678                             dlen);
3679                         if (rval) {
3680                                 DEBUG(printk("scsi(%ld):[ERROR] Failed to load "
3681                                     "segment %d of firmware\n", ha->host_no,
3682                                     fragment));
3683                                 qla_printk(KERN_WARNING, ha,
3684                                     "[ERROR] Failed to load segment %d of "
3685                                     "firmware\n", fragment);
3686                                 break;
3687                         }
3688
3689                         faddr += dlen;
3690                         risc_addr += dlen;
3691                         risc_size -= dlen;
3692                         fragment++;
3693                 }
3694
3695                 /* Next segment. */
3696                 segments--;
3697         }
3698
3699         return rval;
3700 }
3701
3702 #else   /* !defined(CONFIG_SCSI_QLA2XXX_EMBEDDED_FIRMWARE) */
3703
3704 int
3705 qla2x00_load_risc(scsi_qla_host_t *ha, uint32_t *srisc_addr)
3706 {
3707         int     rval;
3708         int     i, fragment;
3709         uint16_t *wcode, *fwcode;
3710         uint32_t risc_addr, risc_size, fwclen, wlen, *seg;
3711         struct fw_blob *blob;
3712
3713         /* Load firmware blob. */
3714         blob = qla2x00_request_firmware(ha);
3715         if (!blob) {
3716                 qla_printk(KERN_ERR, ha, "Firmware image unavailable.\n");
3717                 return QLA_FUNCTION_FAILED;
3718         }
3719
3720         rval = QLA_SUCCESS;
3721
3722         wcode = (uint16_t *)ha->request_ring;
3723         *srisc_addr = 0;
3724         fwcode = (uint16_t *)blob->fw->data;
3725         fwclen = 0;
3726
3727         /* Validate firmware image by checking version. */
3728         if (blob->fw->size < 8 * sizeof(uint16_t)) {
3729                 qla_printk(KERN_WARNING, ha,
3730                     "Unable to verify integrity of firmware image (%Zd)!\n",
3731                     blob->fw->size);
3732                 goto fail_fw_integrity;
3733         }
3734         for (i = 0; i < 4; i++)
3735                 wcode[i] = be16_to_cpu(fwcode[i + 4]);
3736         if ((wcode[0] == 0xffff && wcode[1] == 0xffff && wcode[2] == 0xffff &&
3737             wcode[3] == 0xffff) || (wcode[0] == 0 && wcode[1] == 0 &&
3738                 wcode[2] == 0 && wcode[3] == 0)) {
3739                 qla_printk(KERN_WARNING, ha,
3740                     "Unable to verify integrity of firmware image!\n");
3741                 qla_printk(KERN_WARNING, ha,
3742                     "Firmware data: %04x %04x %04x %04x!\n", wcode[0],
3743                     wcode[1], wcode[2], wcode[3]);
3744                 goto fail_fw_integrity;
3745         }
3746
3747         seg = blob->segs;
3748         while (*seg && rval == QLA_SUCCESS) {
3749                 risc_addr = *seg;
3750                 *srisc_addr = *srisc_addr == 0 ? *seg : *srisc_addr;
3751                 risc_size = be16_to_cpu(fwcode[3]);
3752
3753                 /* Validate firmware image size. */
3754                 fwclen += risc_size * sizeof(uint16_t);
3755                 if (blob->fw->size < fwclen) {
3756                         qla_printk(KERN_WARNING, ha,
3757                             "Unable to verify integrity of firmware image "
3758                             "(%Zd)!\n", blob->fw->size);
3759                         goto fail_fw_integrity;
3760                 }
3761
3762                 fragment = 0;
3763                 while (risc_size > 0 && rval == QLA_SUCCESS) {
3764                         wlen = (uint16_t)(ha->fw_transfer_size >> 1);
3765                         if (wlen > risc_size)
3766                                 wlen = risc_size;
3767
3768                         DEBUG7(printk("scsi(%ld): Loading risc segment@ risc "
3769                             "addr %x, number of words 0x%x.\n", ha->host_no,
3770                             risc_addr, wlen));
3771
3772                         for (i = 0; i < wlen; i++)
3773                                 wcode[i] = swab16(fwcode[i]);
3774
3775                         rval = qla2x00_load_ram(ha, ha->request_dma, risc_addr,
3776                             wlen);
3777                         if (rval) {
3778                                 DEBUG(printk("scsi(%ld):[ERROR] Failed to load "
3779                                     "segment %d of firmware\n", ha->host_no,
3780                                     fragment));
3781                                 qla_printk(KERN_WARNING, ha,
3782                                     "[ERROR] Failed to load segment %d of "
3783                                     "firmware\n", fragment);
3784                                 break;
3785                         }
3786
3787                         fwcode += wlen;
3788                         risc_addr += wlen;
3789                         risc_size -= wlen;
3790                         fragment++;
3791                 }
3792
3793                 /* Next segment. */
3794                 seg++;
3795         }
3796         return rval;
3797
3798 fail_fw_integrity:
3799         return QLA_FUNCTION_FAILED;
3800 }
3801
3802 int
3803 qla24xx_load_risc(scsi_qla_host_t *ha, uint32_t *srisc_addr)
3804 {
3805         int     rval;
3806         int     segments, fragment;
3807         uint32_t *dcode, dlen;
3808         uint32_t risc_addr;
3809         uint32_t risc_size;
3810         uint32_t i;
3811         struct fw_blob *blob;
3812         uint32_t *fwcode, fwclen;
3813
3814         /* Load firmware blob. */
3815         blob = qla2x00_request_firmware(ha);
3816         if (!blob) {
3817                 qla_printk(KERN_ERR, ha, "Firmware image unavailable.\n");
3818                 return QLA_FUNCTION_FAILED;
3819         }
3820
3821         rval = QLA_SUCCESS;
3822
3823         segments = FA_RISC_CODE_SEGMENTS;
3824         dcode = (uint32_t *)ha->request_ring;
3825         *srisc_addr = 0;
3826         fwcode = (uint32_t *)blob->fw->data;
3827         fwclen = 0;
3828
3829         /* Validate firmware image by checking version. */
3830         if (blob->fw->size < 8 * sizeof(uint32_t)) {
3831                 qla_printk(KERN_WARNING, ha,
3832                     "Unable to verify integrity of firmware image (%Zd)!\n",
3833                     blob->fw->size);
3834                 goto fail_fw_integrity;
3835         }
3836         for (i = 0; i < 4; i++)
3837                 dcode[i] = be32_to_cpu(fwcode[i + 4]);
3838         if ((dcode[0] == 0xffffffff && dcode[1] == 0xffffffff &&
3839             dcode[2] == 0xffffffff && dcode[3] == 0xffffffff) ||
3840             (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
3841                 dcode[3] == 0)) {
3842                 qla_printk(KERN_WARNING, ha,
3843                     "Unable to verify integrity of firmware image!\n");
3844                 qla_printk(KERN_WARNING, ha,
3845                     "Firmware data: %08x %08x %08x %08x!\n", dcode[0],
3846                     dcode[1], dcode[2], dcode[3]);
3847                 goto fail_fw_integrity;
3848         }
3849
3850         while (segments && rval == QLA_SUCCESS) {
3851                 risc_addr = be32_to_cpu(fwcode[2]);
3852                 *srisc_addr = *srisc_addr == 0 ? risc_addr : *srisc_addr;
3853                 risc_size = be32_to_cpu(fwcode[3]);
3854
3855                 /* Validate firmware image size. */
3856                 fwclen += risc_size * sizeof(uint32_t);
3857                 if (blob->fw->size < fwclen) {
3858                         qla_printk(KERN_WARNING, ha,
3859                             "Unable to verify integrity of firmware image "
3860                             "(%Zd)!\n", blob->fw->size);
3861
3862                         goto fail_fw_integrity;
3863                 }
3864
3865                 fragment = 0;
3866                 while (risc_size > 0 && rval == QLA_SUCCESS) {
3867                         dlen = (uint32_t)(ha->fw_transfer_size >> 2);
3868                         if (dlen > risc_size)
3869                                 dlen = risc_size;
3870
3871                         DEBUG7(printk("scsi(%ld): Loading risc segment@ risc "
3872                             "addr %x, number of dwords 0x%x.\n", ha->host_no,
3873                             risc_addr, dlen));
3874
3875                         for (i = 0; i < dlen; i++)
3876                                 dcode[i] = swab32(fwcode[i]);
3877
3878                         rval = qla2x00_load_ram(ha, ha->request_dma, risc_addr,
3879                             dlen);
3880                         if (rval) {
3881                                 DEBUG(printk("scsi(%ld):[ERROR] Failed to load "
3882                                     "segment %d of firmware\n", ha->host_no,
3883                                     fragment));
3884                                 qla_printk(KERN_WARNING, ha,
3885                                     "[ERROR] Failed to load segment %d of "
3886                                     "firmware\n", fragment);
3887                                 break;
3888                         }
3889
3890                         fwcode += dlen;
3891                         risc_addr += dlen;
3892                         risc_size -= dlen;
3893                         fragment++;
3894                 }
3895
3896                 /* Next segment. */
3897                 segments--;
3898         }
3899         return rval;
3900
3901 fail_fw_integrity:
3902         return QLA_FUNCTION_FAILED;
3903 }
3904 #endif