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 ((ha->fw_seriallink_options24[0] & BIT_0) == 0)
1018                 return;
1019
1020         rval = qla2x00_set_serdes_params(ha, ha->fw_seriallink_options24[1],
1021             ha->fw_seriallink_options24[2], ha->fw_seriallink_options24[3]);
1022         if (rval != QLA_SUCCESS) {
1023                 qla_printk(KERN_WARNING, ha,
1024                     "Unable to update Serial Link options (%x).\n", rval);
1025         }
1026 }
1027
1028 void
1029 qla2x00_config_rings(struct scsi_qla_host *ha)
1030 {
1031         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1032
1033         /* Setup ring parameters in initialization control block. */
1034         ha->init_cb->request_q_outpointer = __constant_cpu_to_le16(0);
1035         ha->init_cb->response_q_inpointer = __constant_cpu_to_le16(0);
1036         ha->init_cb->request_q_length = cpu_to_le16(ha->request_q_length);
1037         ha->init_cb->response_q_length = cpu_to_le16(ha->response_q_length);
1038         ha->init_cb->request_q_address[0] = cpu_to_le32(LSD(ha->request_dma));
1039         ha->init_cb->request_q_address[1] = cpu_to_le32(MSD(ha->request_dma));
1040         ha->init_cb->response_q_address[0] = cpu_to_le32(LSD(ha->response_dma));
1041         ha->init_cb->response_q_address[1] = cpu_to_le32(MSD(ha->response_dma));
1042
1043         WRT_REG_WORD(ISP_REQ_Q_IN(ha, reg), 0);
1044         WRT_REG_WORD(ISP_REQ_Q_OUT(ha, reg), 0);
1045         WRT_REG_WORD(ISP_RSP_Q_IN(ha, reg), 0);
1046         WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), 0);
1047         RD_REG_WORD(ISP_RSP_Q_OUT(ha, reg));            /* PCI Posting. */
1048 }
1049
1050 void
1051 qla24xx_config_rings(struct scsi_qla_host *ha)
1052 {
1053         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1054         struct init_cb_24xx *icb;
1055
1056         /* Setup ring parameters in initialization control block. */
1057         icb = (struct init_cb_24xx *)ha->init_cb;
1058         icb->request_q_outpointer = __constant_cpu_to_le16(0);
1059         icb->response_q_inpointer = __constant_cpu_to_le16(0);
1060         icb->request_q_length = cpu_to_le16(ha->request_q_length);
1061         icb->response_q_length = cpu_to_le16(ha->response_q_length);
1062         icb->request_q_address[0] = cpu_to_le32(LSD(ha->request_dma));
1063         icb->request_q_address[1] = cpu_to_le32(MSD(ha->request_dma));
1064         icb->response_q_address[0] = cpu_to_le32(LSD(ha->response_dma));
1065         icb->response_q_address[1] = cpu_to_le32(MSD(ha->response_dma));
1066
1067         WRT_REG_DWORD(&reg->req_q_in, 0);
1068         WRT_REG_DWORD(&reg->req_q_out, 0);
1069         WRT_REG_DWORD(&reg->rsp_q_in, 0);
1070         WRT_REG_DWORD(&reg->rsp_q_out, 0);
1071         RD_REG_DWORD(&reg->rsp_q_out);
1072 }
1073
1074 /**
1075  * qla2x00_init_rings() - Initializes firmware.
1076  * @ha: HA context
1077  *
1078  * Beginning of request ring has initialization control block already built
1079  * by nvram config routine.
1080  *
1081  * Returns 0 on success.
1082  */
1083 static int
1084 qla2x00_init_rings(scsi_qla_host_t *ha)
1085 {
1086         int     rval;
1087         unsigned long flags = 0;
1088         int cnt;
1089
1090         spin_lock_irqsave(&ha->hardware_lock, flags);
1091
1092         /* Clear outstanding commands array. */
1093         for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++)
1094                 ha->outstanding_cmds[cnt] = NULL;
1095
1096         ha->current_outstanding_cmd = 0;
1097
1098         /* Clear RSCN queue. */
1099         ha->rscn_in_ptr = 0;
1100         ha->rscn_out_ptr = 0;
1101
1102         /* Initialize firmware. */
1103         ha->request_ring_ptr  = ha->request_ring;
1104         ha->req_ring_index    = 0;
1105         ha->req_q_cnt         = ha->request_q_length;
1106         ha->response_ring_ptr = ha->response_ring;
1107         ha->rsp_ring_index    = 0;
1108
1109         /* Initialize response queue entries */
1110         qla2x00_init_response_q_entries(ha);
1111
1112         ha->isp_ops.config_rings(ha);
1113
1114         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1115
1116         /* Update any ISP specific firmware options before initialization. */
1117         ha->isp_ops.update_fw_options(ha);
1118
1119         DEBUG(printk("scsi(%ld): Issue init firmware.\n", ha->host_no));
1120         rval = qla2x00_init_firmware(ha, ha->init_cb_size);
1121         if (rval) {
1122                 DEBUG2_3(printk("scsi(%ld): Init firmware **** FAILED ****.\n",
1123                     ha->host_no));
1124         } else {
1125                 DEBUG3(printk("scsi(%ld): Init firmware -- success.\n",
1126                     ha->host_no));
1127         }
1128
1129         return (rval);
1130 }
1131
1132 /**
1133  * qla2x00_fw_ready() - Waits for firmware ready.
1134  * @ha: HA context
1135  *
1136  * Returns 0 on success.
1137  */
1138 static int
1139 qla2x00_fw_ready(scsi_qla_host_t *ha)
1140 {
1141         int             rval;
1142         unsigned long   wtime, mtime;
1143         uint16_t        min_wait;       /* Minimum wait time if loop is down */
1144         uint16_t        wait_time;      /* Wait time if loop is coming ready */
1145         uint16_t        fw_state;
1146
1147         rval = QLA_SUCCESS;
1148
1149         /* 20 seconds for loop down. */
1150         min_wait = 20;
1151
1152         /*
1153          * Firmware should take at most one RATOV to login, plus 5 seconds for
1154          * our own processing.
1155          */
1156         if ((wait_time = (ha->retry_count*ha->login_timeout) + 5) < min_wait) {
1157                 wait_time = min_wait;
1158         }
1159
1160         /* Min wait time if loop down */
1161         mtime = jiffies + (min_wait * HZ);
1162
1163         /* wait time before firmware ready */
1164         wtime = jiffies + (wait_time * HZ);
1165
1166         /* Wait for ISP to finish LIP */
1167         if (!ha->flags.init_done)
1168                 qla_printk(KERN_INFO, ha, "Waiting for LIP to complete...\n");
1169
1170         DEBUG3(printk("scsi(%ld): Waiting for LIP to complete...\n",
1171             ha->host_no));
1172
1173         do {
1174                 rval = qla2x00_get_firmware_state(ha, &fw_state);
1175                 if (rval == QLA_SUCCESS) {
1176                         if (fw_state < FSTATE_LOSS_OF_SYNC) {
1177                                 ha->device_flags &= ~DFLG_NO_CABLE;
1178                         }
1179                         if (fw_state == FSTATE_READY) {
1180                                 DEBUG(printk("scsi(%ld): F/W Ready - OK \n",
1181                                     ha->host_no));
1182
1183                                 qla2x00_get_retry_cnt(ha, &ha->retry_count,
1184                                     &ha->login_timeout, &ha->r_a_tov);
1185
1186                                 rval = QLA_SUCCESS;
1187                                 break;
1188                         }
1189
1190                         rval = QLA_FUNCTION_FAILED;
1191
1192                         if (atomic_read(&ha->loop_down_timer) &&
1193                             (fw_state >= FSTATE_LOSS_OF_SYNC ||
1194                                 fw_state == FSTATE_WAIT_AL_PA)) {
1195                                 /* Loop down. Timeout on min_wait for states
1196                                  * other than Wait for Login.
1197                                  */
1198                                 if (time_after_eq(jiffies, mtime)) {
1199                                         qla_printk(KERN_INFO, ha,
1200                                             "Cable is unplugged...\n");
1201
1202                                         ha->device_flags |= DFLG_NO_CABLE;
1203                                         break;
1204                                 }
1205                         }
1206                 } else {
1207                         /* Mailbox cmd failed. Timeout on min_wait. */
1208                         if (time_after_eq(jiffies, mtime))
1209                                 break;
1210                 }
1211
1212                 if (time_after_eq(jiffies, wtime))
1213                         break;
1214
1215                 /* Delay for a while */
1216                 msleep(500);
1217
1218                 DEBUG3(printk("scsi(%ld): fw_state=%x curr time=%lx.\n",
1219                     ha->host_no, fw_state, jiffies));
1220         } while (1);
1221
1222         DEBUG(printk("scsi(%ld): fw_state=%x curr time=%lx.\n",
1223             ha->host_no, fw_state, jiffies));
1224
1225         if (rval) {
1226                 DEBUG2_3(printk("scsi(%ld): Firmware ready **** FAILED ****.\n",
1227                     ha->host_no));
1228         }
1229
1230         return (rval);
1231 }
1232
1233 /*
1234 *  qla2x00_configure_hba
1235 *      Setup adapter context.
1236 *
1237 * Input:
1238 *      ha = adapter state pointer.
1239 *
1240 * Returns:
1241 *      0 = success
1242 *
1243 * Context:
1244 *      Kernel context.
1245 */
1246 static int
1247 qla2x00_configure_hba(scsi_qla_host_t *ha)
1248 {
1249         int       rval;
1250         uint16_t      loop_id;
1251         uint16_t      topo;
1252         uint8_t       al_pa;
1253         uint8_t       area;
1254         uint8_t       domain;
1255         char            connect_type[22];
1256
1257         /* Get host addresses. */
1258         rval = qla2x00_get_adapter_id(ha,
1259             &loop_id, &al_pa, &area, &domain, &topo);
1260         if (rval != QLA_SUCCESS) {
1261                 if (LOOP_TRANSITION(ha) || atomic_read(&ha->loop_down_timer) ||
1262                     (rval == QLA_COMMAND_ERROR && loop_id == 0x7)) {
1263                         DEBUG2(printk("%s(%ld) Loop is in a transition state\n",
1264                             __func__, ha->host_no));
1265                 } else {
1266                         qla_printk(KERN_WARNING, ha,
1267                             "ERROR -- Unable to get host loop ID.\n");
1268                         set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
1269                 }
1270                 return (rval);
1271         }
1272
1273         if (topo == 4) {
1274                 qla_printk(KERN_INFO, ha,
1275                         "Cannot get topology - retrying.\n");
1276                 return (QLA_FUNCTION_FAILED);
1277         }
1278
1279         ha->loop_id = loop_id;
1280
1281         /* initialize */
1282         ha->min_external_loopid = SNS_FIRST_LOOP_ID;
1283         ha->operating_mode = LOOP;
1284
1285         switch (topo) {
1286         case 0:
1287                 DEBUG3(printk("scsi(%ld): HBA in NL topology.\n",
1288                     ha->host_no));
1289                 ha->current_topology = ISP_CFG_NL;
1290                 strcpy(connect_type, "(Loop)");
1291                 break;
1292
1293         case 1:
1294                 DEBUG3(printk("scsi(%ld): HBA in FL topology.\n",
1295                     ha->host_no));
1296                 ha->current_topology = ISP_CFG_FL;
1297                 strcpy(connect_type, "(FL_Port)");
1298                 break;
1299
1300         case 2:
1301                 DEBUG3(printk("scsi(%ld): HBA in N P2P topology.\n",
1302                     ha->host_no));
1303                 ha->operating_mode = P2P;
1304                 ha->current_topology = ISP_CFG_N;
1305                 strcpy(connect_type, "(N_Port-to-N_Port)");
1306                 break;
1307
1308         case 3:
1309                 DEBUG3(printk("scsi(%ld): HBA in F P2P topology.\n",
1310                     ha->host_no));
1311                 ha->operating_mode = P2P;
1312                 ha->current_topology = ISP_CFG_F;
1313                 strcpy(connect_type, "(F_Port)");
1314                 break;
1315
1316         default:
1317                 DEBUG3(printk("scsi(%ld): HBA in unknown topology %x. "
1318                     "Using NL.\n",
1319                     ha->host_no, topo));
1320                 ha->current_topology = ISP_CFG_NL;
1321                 strcpy(connect_type, "(Loop)");
1322                 break;
1323         }
1324
1325         /* Save Host port and loop ID. */
1326         /* byte order - Big Endian */
1327         ha->d_id.b.domain = domain;
1328         ha->d_id.b.area = area;
1329         ha->d_id.b.al_pa = al_pa;
1330
1331         if (!ha->flags.init_done)
1332                 qla_printk(KERN_INFO, ha,
1333                     "Topology - %s, Host Loop address 0x%x\n",
1334                     connect_type, ha->loop_id);
1335
1336         if (rval) {
1337                 DEBUG2_3(printk("scsi(%ld): FAILED.\n", ha->host_no));
1338         } else {
1339                 DEBUG3(printk("scsi(%ld): exiting normally.\n", ha->host_no));
1340         }
1341
1342         return(rval);
1343 }
1344
1345 /*
1346 * NVRAM configuration for ISP 2xxx
1347 *
1348 * Input:
1349 *      ha                = adapter block pointer.
1350 *
1351 * Output:
1352 *      initialization control block in response_ring
1353 *      host adapters parameters in host adapter block
1354 *
1355 * Returns:
1356 *      0 = success.
1357 */
1358 int
1359 qla2x00_nvram_config(scsi_qla_host_t *ha)
1360 {
1361         int             rval;
1362         uint8_t         chksum = 0;
1363         uint16_t        cnt;
1364         uint8_t         *dptr1, *dptr2;
1365         init_cb_t       *icb = ha->init_cb;
1366         nvram_t         *nv = (nvram_t *)ha->request_ring;
1367         uint8_t         *ptr = (uint8_t *)ha->request_ring;
1368         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1369
1370         rval = QLA_SUCCESS;
1371
1372         /* Determine NVRAM starting address. */
1373         ha->nvram_size = sizeof(nvram_t);
1374         ha->nvram_base = 0;
1375         if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA2300(ha))
1376                 if ((RD_REG_WORD(&reg->ctrl_status) >> 14) == 1)
1377                         ha->nvram_base = 0x80;
1378
1379         /* Get NVRAM data and calculate checksum. */
1380         ha->isp_ops.read_nvram(ha, ptr, ha->nvram_base, ha->nvram_size);
1381         for (cnt = 0, chksum = 0; cnt < ha->nvram_size; cnt++)
1382                 chksum += *ptr++;
1383
1384         DEBUG5(printk("scsi(%ld): Contents of NVRAM\n", ha->host_no));
1385         DEBUG5(qla2x00_dump_buffer((uint8_t *)ha->request_ring,
1386             ha->nvram_size));
1387
1388         /* Bad NVRAM data, set defaults parameters. */
1389         if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' ||
1390             nv->id[2] != 'P' || nv->id[3] != ' ' || nv->nvram_version < 1) {
1391                 /* Reset NVRAM data. */
1392                 qla_printk(KERN_WARNING, ha, "Inconsistent NVRAM detected: "
1393                     "checksum=0x%x id=%c version=0x%x.\n", chksum, nv->id[0],
1394                     nv->nvram_version);
1395                 qla_printk(KERN_WARNING, ha, "Falling back to functioning (yet "
1396                     "invalid -- WWPN) defaults.\n");
1397
1398                 /*
1399                  * Set default initialization control block.
1400                  */
1401                 memset(nv, 0, ha->nvram_size);
1402                 nv->parameter_block_version = ICB_VERSION;
1403
1404                 if (IS_QLA23XX(ha)) {
1405                         nv->firmware_options[0] = BIT_2 | BIT_1;
1406                         nv->firmware_options[1] = BIT_7 | BIT_5;
1407                         nv->add_firmware_options[0] = BIT_5;
1408                         nv->add_firmware_options[1] = BIT_5 | BIT_4;
1409                         nv->frame_payload_size = __constant_cpu_to_le16(2048);
1410                         nv->special_options[1] = BIT_7;
1411                 } else if (IS_QLA2200(ha)) {
1412                         nv->firmware_options[0] = BIT_2 | BIT_1;
1413                         nv->firmware_options[1] = BIT_7 | BIT_5;
1414                         nv->add_firmware_options[0] = BIT_5;
1415                         nv->add_firmware_options[1] = BIT_5 | BIT_4;
1416                         nv->frame_payload_size = __constant_cpu_to_le16(1024);
1417                 } else if (IS_QLA2100(ha)) {
1418                         nv->firmware_options[0] = BIT_3 | BIT_1;
1419                         nv->firmware_options[1] = BIT_5;
1420                         nv->frame_payload_size = __constant_cpu_to_le16(1024);
1421                 }
1422
1423                 nv->max_iocb_allocation = __constant_cpu_to_le16(256);
1424                 nv->execution_throttle = __constant_cpu_to_le16(16);
1425                 nv->retry_count = 8;
1426                 nv->retry_delay = 1;
1427
1428                 nv->port_name[0] = 33;
1429                 nv->port_name[3] = 224;
1430                 nv->port_name[4] = 139;
1431
1432                 nv->login_timeout = 4;
1433
1434                 /*
1435                  * Set default host adapter parameters
1436                  */
1437                 nv->host_p[1] = BIT_2;
1438                 nv->reset_delay = 5;
1439                 nv->port_down_retry_count = 8;
1440                 nv->max_luns_per_target = __constant_cpu_to_le16(8);
1441                 nv->link_down_timeout = 60;
1442
1443                 rval = 1;
1444         }
1445
1446 #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
1447         /*
1448          * The SN2 does not provide BIOS emulation which means you can't change
1449          * potentially bogus BIOS settings. Force the use of default settings
1450          * for link rate and frame size.  Hope that the rest of the settings
1451          * are valid.
1452          */
1453         if (ia64_platform_is("sn2")) {
1454                 nv->frame_payload_size = __constant_cpu_to_le16(2048);
1455                 if (IS_QLA23XX(ha))
1456                         nv->special_options[1] = BIT_7;
1457         }
1458 #endif
1459
1460         /* Reset Initialization control block */
1461         memset(icb, 0, ha->init_cb_size);
1462
1463         /*
1464          * Setup driver NVRAM options.
1465          */
1466         nv->firmware_options[0] |= (BIT_6 | BIT_1);
1467         nv->firmware_options[0] &= ~(BIT_5 | BIT_4);
1468         nv->firmware_options[1] |= (BIT_5 | BIT_0);
1469         nv->firmware_options[1] &= ~BIT_4;
1470
1471         if (IS_QLA23XX(ha)) {
1472                 nv->firmware_options[0] |= BIT_2;
1473                 nv->firmware_options[0] &= ~BIT_3;
1474                 nv->add_firmware_options[1] |= BIT_5 | BIT_4;
1475
1476                 if (IS_QLA2300(ha)) {
1477                         if (ha->fb_rev == FPM_2310) {
1478                                 strcpy(ha->model_number, "QLA2310");
1479                         } else {
1480                                 strcpy(ha->model_number, "QLA2300");
1481                         }
1482                 } else {
1483                         if (rval == 0 &&
1484                             memcmp(nv->model_number, BINZERO,
1485                                     sizeof(nv->model_number)) != 0) {
1486                                 char *st, *en;
1487
1488                                 strncpy(ha->model_number, nv->model_number,
1489                                     sizeof(nv->model_number));
1490                                 st = en = ha->model_number;
1491                                 en += sizeof(nv->model_number) - 1;
1492                                 while (en > st) {
1493                                         if (*en != 0x20 && *en != 0x00)
1494                                                 break;
1495                                         *en-- = '\0';
1496                                 }
1497                         } else {
1498                                 uint16_t        index;
1499
1500                                 index = (ha->pdev->subsystem_device & 0xff);
1501                                 if (index < QLA_MODEL_NAMES) {
1502                                         strcpy(ha->model_number,
1503                                             qla2x00_model_name[index]);
1504                                         ha->model_desc =
1505                                             qla2x00_model_desc[index];
1506                                 } else {
1507                                         strcpy(ha->model_number, "QLA23xx");
1508                                 }
1509                         }
1510                 }
1511         } else if (IS_QLA2200(ha)) {
1512                 nv->firmware_options[0] |= BIT_2;
1513                 /*
1514                  * 'Point-to-point preferred, else loop' is not a safe
1515                  * connection mode setting.
1516                  */
1517                 if ((nv->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) ==
1518                     (BIT_5 | BIT_4)) {
1519                         /* Force 'loop preferred, else point-to-point'. */
1520                         nv->add_firmware_options[0] &= ~(BIT_6 | BIT_5 | BIT_4);
1521                         nv->add_firmware_options[0] |= BIT_5;
1522                 }
1523                 strcpy(ha->model_number, "QLA22xx");
1524         } else /*if (IS_QLA2100(ha))*/ {
1525                 strcpy(ha->model_number, "QLA2100");
1526         }
1527
1528         /*
1529          * Copy over NVRAM RISC parameter block to initialization control block.
1530          */
1531         dptr1 = (uint8_t *)icb;
1532         dptr2 = (uint8_t *)&nv->parameter_block_version;
1533         cnt = (uint8_t *)&icb->request_q_outpointer - (uint8_t *)&icb->version;
1534         while (cnt--)
1535                 *dptr1++ = *dptr2++;
1536
1537         /* Copy 2nd half. */
1538         dptr1 = (uint8_t *)icb->add_firmware_options;
1539         cnt = (uint8_t *)icb->reserved_3 - (uint8_t *)icb->add_firmware_options;
1540         while (cnt--)
1541                 *dptr1++ = *dptr2++;
1542
1543         /* Prepare nodename */
1544         if ((icb->firmware_options[1] & BIT_6) == 0) {
1545                 /*
1546                  * Firmware will apply the following mask if the nodename was
1547                  * not provided.
1548                  */
1549                 memcpy(icb->node_name, icb->port_name, WWN_SIZE);
1550                 icb->node_name[0] &= 0xF0;
1551         }
1552
1553         /*
1554          * Set host adapter parameters.
1555          */
1556         ha->flags.disable_risc_code_load = ((nv->host_p[0] & BIT_4) ? 1 : 0);
1557         /* Always load RISC code on non ISP2[12]00 chips. */
1558         if (!IS_QLA2100(ha) && !IS_QLA2200(ha))
1559                 ha->flags.disable_risc_code_load = 0;
1560         ha->flags.enable_lip_reset = ((nv->host_p[1] & BIT_1) ? 1 : 0);
1561         ha->flags.enable_lip_full_login = ((nv->host_p[1] & BIT_2) ? 1 : 0);
1562         ha->flags.enable_target_reset = ((nv->host_p[1] & BIT_3) ? 1 : 0);
1563         ha->flags.enable_led_scheme = (nv->special_options[1] & BIT_4) ? 1 : 0;
1564
1565         ha->operating_mode =
1566             (icb->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) >> 4;
1567
1568         memcpy(ha->fw_seriallink_options, nv->seriallink_options,
1569             sizeof(ha->fw_seriallink_options));
1570
1571         /* save HBA serial number */
1572         ha->serial0 = icb->port_name[5];
1573         ha->serial1 = icb->port_name[6];
1574         ha->serial2 = icb->port_name[7];
1575         ha->node_name = icb->node_name;
1576         ha->port_name = icb->port_name;
1577
1578         icb->execution_throttle = __constant_cpu_to_le16(0xFFFF);
1579
1580         ha->retry_count = nv->retry_count;
1581
1582         /* Set minimum login_timeout to 4 seconds. */
1583         if (nv->login_timeout < ql2xlogintimeout)
1584                 nv->login_timeout = ql2xlogintimeout;
1585         if (nv->login_timeout < 4)
1586                 nv->login_timeout = 4;
1587         ha->login_timeout = nv->login_timeout;
1588         icb->login_timeout = nv->login_timeout;
1589
1590         /* Set minimum RATOV to 200 tenths of a second. */
1591         ha->r_a_tov = 200;
1592
1593         ha->loop_reset_delay = nv->reset_delay;
1594
1595         /* Link Down Timeout = 0:
1596          *
1597          *      When Port Down timer expires we will start returning
1598          *      I/O's to OS with "DID_NO_CONNECT".
1599          *
1600          * Link Down Timeout != 0:
1601          *
1602          *       The driver waits for the link to come up after link down
1603          *       before returning I/Os to OS with "DID_NO_CONNECT".
1604          */
1605         if (nv->link_down_timeout == 0) {
1606                 ha->loop_down_abort_time =
1607                     (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
1608         } else {
1609                 ha->link_down_timeout =  nv->link_down_timeout;
1610                 ha->loop_down_abort_time =
1611                     (LOOP_DOWN_TIME - ha->link_down_timeout);
1612         }
1613
1614         /*
1615          * Need enough time to try and get the port back.
1616          */
1617         ha->port_down_retry_count = nv->port_down_retry_count;
1618         if (qlport_down_retry)
1619                 ha->port_down_retry_count = qlport_down_retry;
1620         /* Set login_retry_count */
1621         ha->login_retry_count  = nv->retry_count;
1622         if (ha->port_down_retry_count == nv->port_down_retry_count &&
1623             ha->port_down_retry_count > 3)
1624                 ha->login_retry_count = ha->port_down_retry_count;
1625         else if (ha->port_down_retry_count > (int)ha->login_retry_count)
1626                 ha->login_retry_count = ha->port_down_retry_count;
1627         if (ql2xloginretrycount)
1628                 ha->login_retry_count = ql2xloginretrycount;
1629
1630         icb->lun_enables = __constant_cpu_to_le16(0);
1631         icb->command_resource_count = 0;
1632         icb->immediate_notify_resource_count = 0;
1633         icb->timeout = __constant_cpu_to_le16(0);
1634
1635         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
1636                 /* Enable RIO */
1637                 icb->firmware_options[0] &= ~BIT_3;
1638                 icb->add_firmware_options[0] &=
1639                     ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
1640                 icb->add_firmware_options[0] |= BIT_2;
1641                 icb->response_accumulation_timer = 3;
1642                 icb->interrupt_delay_timer = 5;
1643
1644                 ha->flags.process_response_queue = 1;
1645         } else {
1646                 /* Enable ZIO. */
1647                 if (!ha->flags.init_done) {
1648                         ha->zio_mode = icb->add_firmware_options[0] &
1649                             (BIT_3 | BIT_2 | BIT_1 | BIT_0);
1650                         ha->zio_timer = icb->interrupt_delay_timer ?
1651                             icb->interrupt_delay_timer: 2;
1652                 }
1653                 icb->add_firmware_options[0] &=
1654                     ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
1655                 ha->flags.process_response_queue = 0;
1656                 if (ha->zio_mode != QLA_ZIO_DISABLED) {
1657                         DEBUG2(printk("scsi(%ld): ZIO mode %d enabled; timer "
1658                             "delay (%d us).\n", ha->host_no, ha->zio_mode,
1659                             ha->zio_timer * 100));
1660                         qla_printk(KERN_INFO, ha,
1661                             "ZIO mode %d enabled; timer delay (%d us).\n",
1662                             ha->zio_mode, ha->zio_timer * 100);
1663
1664                         icb->add_firmware_options[0] |= (uint8_t)ha->zio_mode;
1665                         icb->interrupt_delay_timer = (uint8_t)ha->zio_timer;
1666                         ha->flags.process_response_queue = 1;
1667                 }
1668         }
1669
1670         if (rval) {
1671                 DEBUG2_3(printk(KERN_WARNING
1672                     "scsi(%ld): NVRAM configuration failed!\n", ha->host_no));
1673         }
1674         return (rval);
1675 }
1676
1677 static void
1678 qla2x00_rport_add(void *data)
1679 {
1680         fc_port_t *fcport = data;
1681
1682         qla2x00_reg_remote_port(fcport->ha, fcport);
1683 }
1684
1685 static void
1686 qla2x00_rport_del(void *data)
1687 {
1688         fc_port_t *fcport = data;
1689
1690         if (fcport->rport)
1691                 fc_remote_port_delete(fcport->rport);
1692         fcport->rport = NULL;
1693 }
1694
1695 /**
1696  * qla2x00_alloc_fcport() - Allocate a generic fcport.
1697  * @ha: HA context
1698  * @flags: allocation flags
1699  *
1700  * Returns a pointer to the allocated fcport, or NULL, if none available.
1701  */
1702 fc_port_t *
1703 qla2x00_alloc_fcport(scsi_qla_host_t *ha, gfp_t flags)
1704 {
1705         fc_port_t *fcport;
1706
1707         fcport = kmalloc(sizeof(fc_port_t), flags);
1708         if (fcport == NULL)
1709                 return (fcport);
1710
1711         /* Setup fcport template structure. */
1712         memset(fcport, 0, sizeof (fc_port_t));
1713         fcport->ha = ha;
1714         fcport->port_type = FCT_UNKNOWN;
1715         fcport->loop_id = FC_NO_LOOP_ID;
1716         fcport->iodesc_idx_sent = IODESC_INVALID_INDEX;
1717         atomic_set(&fcport->state, FCS_UNCONFIGURED);
1718         fcport->flags = FCF_RLC_SUPPORT;
1719         fcport->supported_classes = FC_COS_UNSPECIFIED;
1720         INIT_WORK(&fcport->rport_add_work, qla2x00_rport_add, fcport);
1721         INIT_WORK(&fcport->rport_del_work, qla2x00_rport_del, fcport);
1722
1723         return (fcport);
1724 }
1725
1726 /*
1727  * qla2x00_configure_loop
1728  *      Updates Fibre Channel Device Database with what is actually on loop.
1729  *
1730  * Input:
1731  *      ha                = adapter block pointer.
1732  *
1733  * Returns:
1734  *      0 = success.
1735  *      1 = error.
1736  *      2 = database was full and device was not configured.
1737  */
1738 static int
1739 qla2x00_configure_loop(scsi_qla_host_t *ha)
1740 {
1741         int  rval;
1742         unsigned long flags, save_flags;
1743
1744         rval = QLA_SUCCESS;
1745
1746         /* Get Initiator ID */
1747         if (test_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags)) {
1748                 rval = qla2x00_configure_hba(ha);
1749                 if (rval != QLA_SUCCESS) {
1750                         DEBUG(printk("scsi(%ld): Unable to configure HBA.\n",
1751                             ha->host_no));
1752                         return (rval);
1753                 }
1754         }
1755
1756         save_flags = flags = ha->dpc_flags;
1757         DEBUG(printk("scsi(%ld): Configure loop -- dpc flags =0x%lx\n",
1758             ha->host_no, flags));
1759
1760         /*
1761          * If we have both an RSCN and PORT UPDATE pending then handle them
1762          * both at the same time.
1763          */
1764         clear_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1765         clear_bit(RSCN_UPDATE, &ha->dpc_flags);
1766
1767         /* Determine what we need to do */
1768         if (ha->current_topology == ISP_CFG_FL &&
1769             (test_bit(LOCAL_LOOP_UPDATE, &flags))) {
1770
1771                 ha->flags.rscn_queue_overflow = 1;
1772                 set_bit(RSCN_UPDATE, &flags);
1773
1774         } else if (ha->current_topology == ISP_CFG_F &&
1775             (test_bit(LOCAL_LOOP_UPDATE, &flags))) {
1776
1777                 ha->flags.rscn_queue_overflow = 1;
1778                 set_bit(RSCN_UPDATE, &flags);
1779                 clear_bit(LOCAL_LOOP_UPDATE, &flags);
1780
1781         } else if (!ha->flags.online ||
1782             (test_bit(ABORT_ISP_ACTIVE, &flags))) {
1783
1784                 ha->flags.rscn_queue_overflow = 1;
1785                 set_bit(RSCN_UPDATE, &flags);
1786                 set_bit(LOCAL_LOOP_UPDATE, &flags);
1787         }
1788
1789         if (test_bit(LOCAL_LOOP_UPDATE, &flags)) {
1790                 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
1791                         rval = QLA_FUNCTION_FAILED;
1792                 } else {
1793                         rval = qla2x00_configure_local_loop(ha);
1794                 }
1795         }
1796
1797         if (rval == QLA_SUCCESS && test_bit(RSCN_UPDATE, &flags)) {
1798                 if (LOOP_TRANSITION(ha)) {
1799                         rval = QLA_FUNCTION_FAILED;
1800                 } else {
1801                         rval = qla2x00_configure_fabric(ha);
1802                 }
1803         }
1804
1805         if (rval == QLA_SUCCESS) {
1806                 if (atomic_read(&ha->loop_down_timer) ||
1807                     test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
1808                         rval = QLA_FUNCTION_FAILED;
1809                 } else {
1810                         atomic_set(&ha->loop_state, LOOP_READY);
1811
1812                         DEBUG(printk("scsi(%ld): LOOP READY\n", ha->host_no));
1813                 }
1814         }
1815
1816         if (rval) {
1817                 DEBUG2_3(printk("%s(%ld): *** FAILED ***\n",
1818                     __func__, ha->host_no));
1819         } else {
1820                 DEBUG3(printk("%s: exiting normally\n", __func__));
1821         }
1822
1823         /* Restore state if a resync event occured during processing */
1824         if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
1825                 if (test_bit(LOCAL_LOOP_UPDATE, &save_flags))
1826                         set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1827                 if (test_bit(RSCN_UPDATE, &save_flags))
1828                         set_bit(RSCN_UPDATE, &ha->dpc_flags);
1829         }
1830
1831         return (rval);
1832 }
1833
1834
1835
1836 /*
1837  * qla2x00_configure_local_loop
1838  *      Updates Fibre Channel Device Database with local loop devices.
1839  *
1840  * Input:
1841  *      ha = adapter block pointer.
1842  *
1843  * Returns:
1844  *      0 = success.
1845  */
1846 static int
1847 qla2x00_configure_local_loop(scsi_qla_host_t *ha)
1848 {
1849         int             rval, rval2;
1850         int             found_devs;
1851         int             found;
1852         fc_port_t       *fcport, *new_fcport;
1853
1854         uint16_t        index;
1855         uint16_t        entries;
1856         char            *id_iter;
1857         uint16_t        loop_id;
1858         uint8_t         domain, area, al_pa;
1859
1860         found_devs = 0;
1861         new_fcport = NULL;
1862         entries = MAX_FIBRE_DEVICES;
1863
1864         DEBUG3(printk("scsi(%ld): Getting FCAL position map\n", ha->host_no));
1865         DEBUG3(qla2x00_get_fcal_position_map(ha, NULL));
1866
1867         /* Get list of logged in devices. */
1868         memset(ha->gid_list, 0, GID_LIST_SIZE);
1869         rval = qla2x00_get_id_list(ha, ha->gid_list, ha->gid_list_dma,
1870             &entries);
1871         if (rval != QLA_SUCCESS)
1872                 goto cleanup_allocation;
1873
1874         DEBUG3(printk("scsi(%ld): Entries in ID list (%d)\n",
1875             ha->host_no, entries));
1876         DEBUG3(qla2x00_dump_buffer((uint8_t *)ha->gid_list,
1877             entries * sizeof(struct gid_list_info)));
1878
1879         /* Allocate temporary fcport for any new fcports discovered. */
1880         new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
1881         if (new_fcport == NULL) {
1882                 rval = QLA_MEMORY_ALLOC_FAILED;
1883                 goto cleanup_allocation;
1884         }
1885         new_fcport->flags &= ~FCF_FABRIC_DEVICE;
1886
1887         /*
1888          * Mark local devices that were present with FCF_DEVICE_LOST for now.
1889          */
1890         list_for_each_entry(fcport, &ha->fcports, list) {
1891                 if (atomic_read(&fcport->state) == FCS_ONLINE &&
1892                     fcport->port_type != FCT_BROADCAST &&
1893                     (fcport->flags & FCF_FABRIC_DEVICE) == 0) {
1894
1895                         DEBUG(printk("scsi(%ld): Marking port lost, "
1896                             "loop_id=0x%04x\n",
1897                             ha->host_no, fcport->loop_id));
1898
1899                         atomic_set(&fcport->state, FCS_DEVICE_LOST);
1900                         fcport->flags &= ~FCF_FARP_DONE;
1901                 }
1902         }
1903
1904         /* Add devices to port list. */
1905         id_iter = (char *)ha->gid_list;
1906         for (index = 0; index < entries; index++) {
1907                 domain = ((struct gid_list_info *)id_iter)->domain;
1908                 area = ((struct gid_list_info *)id_iter)->area;
1909                 al_pa = ((struct gid_list_info *)id_iter)->al_pa;
1910                 if (IS_QLA2100(ha) || IS_QLA2200(ha))
1911                         loop_id = (uint16_t)
1912                             ((struct gid_list_info *)id_iter)->loop_id_2100;
1913                 else
1914                         loop_id = le16_to_cpu(
1915                             ((struct gid_list_info *)id_iter)->loop_id);
1916                 id_iter += ha->gid_list_info_size;
1917
1918                 /* Bypass reserved domain fields. */
1919                 if ((domain & 0xf0) == 0xf0)
1920                         continue;
1921
1922                 /* Bypass if not same domain and area of adapter. */
1923                 if (area && domain &&
1924                     (area != ha->d_id.b.area || domain != ha->d_id.b.domain))
1925                         continue;
1926
1927                 /* Bypass invalid local loop ID. */
1928                 if (loop_id > LAST_LOCAL_LOOP_ID)
1929                         continue;
1930
1931                 /* Fill in member data. */
1932                 new_fcport->d_id.b.domain = domain;
1933                 new_fcport->d_id.b.area = area;
1934                 new_fcport->d_id.b.al_pa = al_pa;
1935                 new_fcport->loop_id = loop_id;
1936                 rval2 = qla2x00_get_port_database(ha, new_fcport, 0);
1937                 if (rval2 != QLA_SUCCESS) {
1938                         DEBUG2(printk("scsi(%ld): Failed to retrieve fcport "
1939                             "information -- get_port_database=%x, "
1940                             "loop_id=0x%04x\n",
1941                             ha->host_no, rval2, new_fcport->loop_id));
1942                         continue;
1943                 }
1944
1945                 /* Check for matching device in port list. */
1946                 found = 0;
1947                 fcport = NULL;
1948                 list_for_each_entry(fcport, &ha->fcports, list) {
1949                         if (memcmp(new_fcport->port_name, fcport->port_name,
1950                             WWN_SIZE))
1951                                 continue;
1952
1953                         fcport->flags &= ~(FCF_FABRIC_DEVICE |
1954                             FCF_PERSISTENT_BOUND);
1955                         fcport->loop_id = new_fcport->loop_id;
1956                         fcport->port_type = new_fcport->port_type;
1957                         fcport->d_id.b24 = new_fcport->d_id.b24;
1958                         memcpy(fcport->node_name, new_fcport->node_name,
1959                             WWN_SIZE);
1960
1961                         found++;
1962                         break;
1963                 }
1964
1965                 if (!found) {
1966                         /* New device, add to fcports list. */
1967                         new_fcport->flags &= ~FCF_PERSISTENT_BOUND;
1968                         list_add_tail(&new_fcport->list, &ha->fcports);
1969
1970                         /* Allocate a new replacement fcport. */
1971                         fcport = new_fcport;
1972                         new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
1973                         if (new_fcport == NULL) {
1974                                 rval = QLA_MEMORY_ALLOC_FAILED;
1975                                 goto cleanup_allocation;
1976                         }
1977                         new_fcport->flags &= ~FCF_FABRIC_DEVICE;
1978                 }
1979
1980                 qla2x00_update_fcport(ha, fcport);
1981
1982                 found_devs++;
1983         }
1984
1985 cleanup_allocation:
1986         kfree(new_fcport);
1987
1988         if (rval != QLA_SUCCESS) {
1989                 DEBUG2(printk("scsi(%ld): Configure local loop error exit: "
1990                     "rval=%x\n", ha->host_no, rval));
1991         }
1992
1993         if (found_devs) {
1994                 ha->device_flags |= DFLG_LOCAL_DEVICES;
1995                 ha->device_flags &= ~DFLG_RETRY_LOCAL_DEVICES;
1996         }
1997
1998         return (rval);
1999 }
2000
2001 static void
2002 qla2x00_probe_for_all_luns(scsi_qla_host_t *ha)
2003 {
2004         fc_port_t       *fcport;
2005
2006         qla2x00_mark_all_devices_lost(ha);
2007         list_for_each_entry(fcport, &ha->fcports, list) {
2008                 if (fcport->port_type != FCT_TARGET)
2009                         continue;
2010
2011                 qla2x00_update_fcport(ha, fcport);
2012         }
2013 }
2014
2015 /*
2016  * qla2x00_update_fcport
2017  *      Updates device on list.
2018  *
2019  * Input:
2020  *      ha = adapter block pointer.
2021  *      fcport = port structure pointer.
2022  *
2023  * Return:
2024  *      0  - Success
2025  *  BIT_0 - error
2026  *
2027  * Context:
2028  *      Kernel context.
2029  */
2030 static void
2031 qla2x00_update_fcport(scsi_qla_host_t *ha, fc_port_t *fcport)
2032 {
2033         uint16_t        index;
2034         unsigned long flags;
2035         srb_t *sp;
2036
2037         fcport->ha = ha;
2038         fcport->login_retry = 0;
2039         fcport->port_login_retry_count = ha->port_down_retry_count *
2040             PORT_RETRY_TIME;
2041         atomic_set(&fcport->port_down_timer, ha->port_down_retry_count *
2042             PORT_RETRY_TIME);
2043         fcport->flags &= ~FCF_LOGIN_NEEDED;
2044
2045         /*
2046          * Check for outstanding cmd on tape Bypass LUN discovery if active
2047          * command on tape.
2048          */
2049         if (fcport->flags & FCF_TAPE_PRESENT) {
2050                 spin_lock_irqsave(&ha->hardware_lock, flags);
2051                 for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) {
2052                         fc_port_t *sfcp;
2053
2054                         if ((sp = ha->outstanding_cmds[index]) != 0) {
2055                                 sfcp = sp->fcport;
2056                                 if (sfcp == fcport) {
2057                                         atomic_set(&fcport->state, FCS_ONLINE);
2058                                         spin_unlock_irqrestore(
2059                                             &ha->hardware_lock, flags);
2060                                         return;
2061                                 }
2062                         }
2063                 }
2064                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2065         }
2066
2067         if (fcport->port_type == FCT_INITIATOR ||
2068             fcport->port_type == FCT_BROADCAST)
2069                 fcport->device_type = TYPE_PROCESSOR;
2070
2071         atomic_set(&fcport->state, FCS_ONLINE);
2072
2073         if (ha->flags.init_done)
2074                 qla2x00_reg_remote_port(ha, fcport);
2075 }
2076
2077 void
2078 qla2x00_reg_remote_port(scsi_qla_host_t *ha, fc_port_t *fcport)
2079 {
2080         struct fc_rport_identifiers rport_ids;
2081         struct fc_rport *rport;
2082
2083         if (fcport->rport) {
2084                 fc_remote_port_delete(fcport->rport);
2085                 fcport->rport = NULL;
2086         }
2087
2088         rport_ids.node_name = wwn_to_u64(fcport->node_name);
2089         rport_ids.port_name = wwn_to_u64(fcport->port_name);
2090         rport_ids.port_id = fcport->d_id.b.domain << 16 |
2091             fcport->d_id.b.area << 8 | fcport->d_id.b.al_pa;
2092         rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
2093         fcport->rport = rport = fc_remote_port_add(ha->host, 0, &rport_ids);
2094         if (!rport) {
2095                 qla_printk(KERN_WARNING, ha,
2096                     "Unable to allocate fc remote port!\n");
2097                 return;
2098         }
2099         *((fc_port_t **)rport->dd_data) = fcport;
2100         rport->supported_classes = fcport->supported_classes;
2101
2102         rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
2103         if (fcport->port_type == FCT_INITIATOR)
2104                 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
2105         if (fcport->port_type == FCT_TARGET)
2106                 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
2107         fc_remote_port_rolechg(rport, rport_ids.roles);
2108
2109         if (rport->scsi_target_id != -1 &&
2110             rport->scsi_target_id < ha->host->max_id)
2111                 fcport->os_target_id = rport->scsi_target_id;
2112 }
2113
2114 /*
2115  * qla2x00_configure_fabric
2116  *      Setup SNS devices with loop ID's.
2117  *
2118  * Input:
2119  *      ha = adapter block pointer.
2120  *
2121  * Returns:
2122  *      0 = success.
2123  *      BIT_0 = error
2124  */
2125 static int
2126 qla2x00_configure_fabric(scsi_qla_host_t *ha)
2127 {
2128         int     rval, rval2;
2129         fc_port_t       *fcport, *fcptemp;
2130         uint16_t        next_loopid;
2131         uint16_t        mb[MAILBOX_REGISTER_COUNT];
2132         uint16_t        loop_id;
2133         LIST_HEAD(new_fcports);
2134
2135         /* If FL port exists, then SNS is present */
2136         if (IS_QLA24XX(ha) || IS_QLA25XX(ha))
2137                 loop_id = NPH_F_PORT;
2138         else
2139                 loop_id = SNS_FL_PORT;
2140         rval = qla2x00_get_port_name(ha, loop_id, NULL, 0);
2141         if (rval != QLA_SUCCESS) {
2142                 DEBUG2(printk("scsi(%ld): MBC_GET_PORT_NAME Failed, No FL "
2143                     "Port\n", ha->host_no));
2144
2145                 ha->device_flags &= ~SWITCH_FOUND;
2146                 return (QLA_SUCCESS);
2147         }
2148
2149         /* Mark devices that need re-synchronization. */
2150         rval2 = qla2x00_device_resync(ha);
2151         if (rval2 == QLA_RSCNS_HANDLED) {
2152                 /* No point doing the scan, just continue. */
2153                 return (QLA_SUCCESS);
2154         }
2155         do {
2156                 /* FDMI support. */
2157                 if (ql2xfdmienable &&
2158                     test_and_clear_bit(REGISTER_FDMI_NEEDED, &ha->dpc_flags))
2159                         qla2x00_fdmi_register(ha);
2160
2161                 /* Ensure we are logged into the SNS. */
2162                 if (IS_QLA24XX(ha) || IS_QLA25XX(ha))
2163                         loop_id = NPH_SNS;
2164                 else
2165                         loop_id = SIMPLE_NAME_SERVER;
2166                 ha->isp_ops.fabric_login(ha, loop_id, 0xff, 0xff,
2167                     0xfc, mb, BIT_1 | BIT_0);
2168                 if (mb[0] != MBS_COMMAND_COMPLETE) {
2169                         DEBUG2(qla_printk(KERN_INFO, ha,
2170                             "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x "
2171                             "mb[2]=%x mb[6]=%x mb[7]=%x\n", loop_id,
2172                             mb[0], mb[1], mb[2], mb[6], mb[7]));
2173                         return (QLA_SUCCESS);
2174                 }
2175
2176                 if (test_and_clear_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags)) {
2177                         if (qla2x00_rft_id(ha)) {
2178                                 /* EMPTY */
2179                                 DEBUG2(printk("scsi(%ld): Register FC-4 "
2180                                     "TYPE failed.\n", ha->host_no));
2181                         }
2182                         if (qla2x00_rff_id(ha)) {
2183                                 /* EMPTY */
2184                                 DEBUG2(printk("scsi(%ld): Register FC-4 "
2185                                     "Features failed.\n", ha->host_no));
2186                         }
2187                         if (qla2x00_rnn_id(ha)) {
2188                                 /* EMPTY */
2189                                 DEBUG2(printk("scsi(%ld): Register Node Name "
2190                                     "failed.\n", ha->host_no));
2191                         } else if (qla2x00_rsnn_nn(ha)) {
2192                                 /* EMPTY */
2193                                 DEBUG2(printk("scsi(%ld): Register Symbolic "
2194                                     "Node Name failed.\n", ha->host_no));
2195                         }
2196                 }
2197
2198                 rval = qla2x00_find_all_fabric_devs(ha, &new_fcports);
2199                 if (rval != QLA_SUCCESS)
2200                         break;
2201
2202                 /*
2203                  * Logout all previous fabric devices marked lost, except
2204                  * tape devices.
2205                  */
2206                 list_for_each_entry(fcport, &ha->fcports, list) {
2207                         if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2208                                 break;
2209
2210                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0)
2211                                 continue;
2212
2213                         if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2214                                 qla2x00_mark_device_lost(ha, fcport,
2215                                     ql2xplogiabsentdevice);
2216                                 if (fcport->loop_id != FC_NO_LOOP_ID &&
2217                                     (fcport->flags & FCF_TAPE_PRESENT) == 0 &&
2218                                     fcport->port_type != FCT_INITIATOR &&
2219                                     fcport->port_type != FCT_BROADCAST) {
2220
2221                                         ha->isp_ops.fabric_logout(ha,
2222                                             fcport->loop_id,
2223                                             fcport->d_id.b.domain,
2224                                             fcport->d_id.b.area,
2225                                             fcport->d_id.b.al_pa);
2226                                         fcport->loop_id = FC_NO_LOOP_ID;
2227                                 }
2228                         }
2229                 }
2230
2231                 /* Starting free loop ID. */
2232                 next_loopid = ha->min_external_loopid;
2233
2234                 /*
2235                  * Scan through our port list and login entries that need to be
2236                  * logged in.
2237                  */
2238                 list_for_each_entry(fcport, &ha->fcports, list) {
2239                         if (atomic_read(&ha->loop_down_timer) ||
2240                             test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2241                                 break;
2242
2243                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 ||
2244                             (fcport->flags & FCF_LOGIN_NEEDED) == 0)
2245                                 continue;
2246
2247                         if (fcport->loop_id == FC_NO_LOOP_ID) {
2248                                 fcport->loop_id = next_loopid;
2249                                 rval = qla2x00_find_new_loop_id(ha, fcport);
2250                                 if (rval != QLA_SUCCESS) {
2251                                         /* Ran out of IDs to use */
2252                                         break;
2253                                 }
2254                         }
2255                         /* Login and update database */
2256                         qla2x00_fabric_dev_login(ha, fcport, &next_loopid);
2257                 }
2258
2259                 /* Exit if out of loop IDs. */
2260                 if (rval != QLA_SUCCESS) {
2261                         break;
2262                 }
2263
2264                 /*
2265                  * Login and add the new devices to our port list.
2266                  */
2267                 list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) {
2268                         if (atomic_read(&ha->loop_down_timer) ||
2269                             test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2270                                 break;
2271
2272                         /* Find a new loop ID to use. */
2273                         fcport->loop_id = next_loopid;
2274                         rval = qla2x00_find_new_loop_id(ha, fcport);
2275                         if (rval != QLA_SUCCESS) {
2276                                 /* Ran out of IDs to use */
2277                                 break;
2278                         }
2279
2280                         /* Remove device from the new list and add it to DB */
2281                         list_del(&fcport->list);
2282                         list_add_tail(&fcport->list, &ha->fcports);
2283
2284                         /* Login and update database */
2285                         qla2x00_fabric_dev_login(ha, fcport, &next_loopid);
2286                 }
2287         } while (0);
2288
2289         /* Free all new device structures not processed. */
2290         list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) {
2291                 list_del(&fcport->list);
2292                 kfree(fcport);
2293         }
2294
2295         if (rval) {
2296                 DEBUG2(printk("scsi(%ld): Configure fabric error exit: "
2297                     "rval=%d\n", ha->host_no, rval));
2298         }
2299
2300         return (rval);
2301 }
2302
2303
2304 /*
2305  * qla2x00_find_all_fabric_devs
2306  *
2307  * Input:
2308  *      ha = adapter block pointer.
2309  *      dev = database device entry pointer.
2310  *
2311  * Returns:
2312  *      0 = success.
2313  *
2314  * Context:
2315  *      Kernel context.
2316  */
2317 static int
2318 qla2x00_find_all_fabric_devs(scsi_qla_host_t *ha, struct list_head *new_fcports)
2319 {
2320         int             rval;
2321         uint16_t        loop_id;
2322         fc_port_t       *fcport, *new_fcport, *fcptemp;
2323         int             found;
2324
2325         sw_info_t       *swl;
2326         int             swl_idx;
2327         int             first_dev, last_dev;
2328         port_id_t       wrap, nxt_d_id;
2329
2330         rval = QLA_SUCCESS;
2331
2332         /* Try GID_PT to get device list, else GAN. */
2333         swl = kmalloc(sizeof(sw_info_t) * MAX_FIBRE_DEVICES, GFP_ATOMIC);
2334         if (swl == NULL) {
2335                 /*EMPTY*/
2336                 DEBUG2(printk("scsi(%ld): GID_PT allocations failed, fallback "
2337                     "on GA_NXT\n", ha->host_no));
2338         } else {
2339                 memset(swl, 0, sizeof(sw_info_t) * MAX_FIBRE_DEVICES);
2340                 if (qla2x00_gid_pt(ha, swl) != QLA_SUCCESS) {
2341                         kfree(swl);
2342                         swl = NULL;
2343                 } else if (qla2x00_gpn_id(ha, swl) != QLA_SUCCESS) {
2344                         kfree(swl);
2345                         swl = NULL;
2346                 } else if (qla2x00_gnn_id(ha, swl) != QLA_SUCCESS) {
2347                         kfree(swl);
2348                         swl = NULL;
2349                 }
2350         }
2351         swl_idx = 0;
2352
2353         /* Allocate temporary fcport for any new fcports discovered. */
2354         new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
2355         if (new_fcport == NULL) {
2356                 kfree(swl);
2357                 return (QLA_MEMORY_ALLOC_FAILED);
2358         }
2359         new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
2360
2361         /* Set start port ID scan at adapter ID. */
2362         first_dev = 1;
2363         last_dev = 0;
2364
2365         /* Starting free loop ID. */
2366         loop_id = ha->min_external_loopid;
2367         for (; loop_id <= ha->last_loop_id; loop_id++) {
2368                 if (qla2x00_is_reserved_id(ha, loop_id))
2369                         continue;
2370
2371                 if (atomic_read(&ha->loop_down_timer) || LOOP_TRANSITION(ha))
2372                         break;
2373
2374                 if (swl != NULL) {
2375                         if (last_dev) {
2376                                 wrap.b24 = new_fcport->d_id.b24;
2377                         } else {
2378                                 new_fcport->d_id.b24 = swl[swl_idx].d_id.b24;
2379                                 memcpy(new_fcport->node_name,
2380                                     swl[swl_idx].node_name, WWN_SIZE);
2381                                 memcpy(new_fcport->port_name,
2382                                     swl[swl_idx].port_name, WWN_SIZE);
2383
2384                                 if (swl[swl_idx].d_id.b.rsvd_1 != 0) {
2385                                         last_dev = 1;
2386                                 }
2387                                 swl_idx++;
2388                         }
2389                 } else {
2390                         /* Send GA_NXT to the switch */
2391                         rval = qla2x00_ga_nxt(ha, new_fcport);
2392                         if (rval != QLA_SUCCESS) {
2393                                 qla_printk(KERN_WARNING, ha,
2394                                     "SNS scan failed -- assuming zero-entry "
2395                                     "result...\n");
2396                                 list_for_each_entry_safe(fcport, fcptemp,
2397                                     new_fcports, list) {
2398                                         list_del(&fcport->list);
2399                                         kfree(fcport);
2400                                 }
2401                                 rval = QLA_SUCCESS;
2402                                 break;
2403                         }
2404                 }
2405
2406                 /* If wrap on switch device list, exit. */
2407                 if (first_dev) {
2408                         wrap.b24 = new_fcport->d_id.b24;
2409                         first_dev = 0;
2410                 } else if (new_fcport->d_id.b24 == wrap.b24) {
2411                         DEBUG2(printk("scsi(%ld): device wrap (%02x%02x%02x)\n",
2412                             ha->host_no, new_fcport->d_id.b.domain,
2413                             new_fcport->d_id.b.area, new_fcport->d_id.b.al_pa));
2414                         break;
2415                 }
2416
2417                 /* Bypass if host adapter. */
2418                 if (new_fcport->d_id.b24 == ha->d_id.b24)
2419                         continue;
2420
2421                 /* Bypass if same domain and area of adapter. */
2422                 if (((new_fcport->d_id.b24 & 0xffff00) ==
2423                     (ha->d_id.b24 & 0xffff00)) && ha->current_topology ==
2424                         ISP_CFG_FL)
2425                             continue;
2426
2427                 /* Bypass reserved domain fields. */
2428                 if ((new_fcport->d_id.b.domain & 0xf0) == 0xf0)
2429                         continue;
2430
2431                 /* Locate matching device in database. */
2432                 found = 0;
2433                 list_for_each_entry(fcport, &ha->fcports, list) {
2434                         if (memcmp(new_fcport->port_name, fcport->port_name,
2435                             WWN_SIZE))
2436                                 continue;
2437
2438                         found++;
2439
2440                         /*
2441                          * If address the same and state FCS_ONLINE, nothing
2442                          * changed.
2443                          */
2444                         if (fcport->d_id.b24 == new_fcport->d_id.b24 &&
2445                             atomic_read(&fcport->state) == FCS_ONLINE) {
2446                                 break;
2447                         }
2448
2449                         /*
2450                          * If device was not a fabric device before.
2451                          */
2452                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) {
2453                                 fcport->d_id.b24 = new_fcport->d_id.b24;
2454                                 fcport->loop_id = FC_NO_LOOP_ID;
2455                                 fcport->flags |= (FCF_FABRIC_DEVICE |
2456                                     FCF_LOGIN_NEEDED);
2457                                 fcport->flags &= ~FCF_PERSISTENT_BOUND;
2458                                 break;
2459                         }
2460
2461                         /*
2462                          * Port ID changed or device was marked to be updated;
2463                          * Log it out if still logged in and mark it for
2464                          * relogin later.
2465                          */
2466                         fcport->d_id.b24 = new_fcport->d_id.b24;
2467                         fcport->flags |= FCF_LOGIN_NEEDED;
2468                         if (fcport->loop_id != FC_NO_LOOP_ID &&
2469                             (fcport->flags & FCF_TAPE_PRESENT) == 0 &&
2470                             fcport->port_type != FCT_INITIATOR &&
2471                             fcport->port_type != FCT_BROADCAST) {
2472                                 ha->isp_ops.fabric_logout(ha, fcport->loop_id,
2473                                     fcport->d_id.b.domain, fcport->d_id.b.area,
2474                                     fcport->d_id.b.al_pa);
2475                                 fcport->loop_id = FC_NO_LOOP_ID;
2476                         }
2477
2478                         break;
2479                 }
2480
2481                 if (found)
2482                         continue;
2483
2484                 /* If device was not in our fcports list, then add it. */
2485                 list_add_tail(&new_fcport->list, new_fcports);
2486
2487                 /* Allocate a new replacement fcport. */
2488                 nxt_d_id.b24 = new_fcport->d_id.b24;
2489                 new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
2490                 if (new_fcport == NULL) {
2491                         kfree(swl);
2492                         return (QLA_MEMORY_ALLOC_FAILED);
2493                 }
2494                 new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
2495                 new_fcport->d_id.b24 = nxt_d_id.b24;
2496         }
2497
2498         kfree(swl);
2499         kfree(new_fcport);
2500
2501         if (!list_empty(new_fcports))
2502                 ha->device_flags |= DFLG_FABRIC_DEVICES;
2503
2504         return (rval);
2505 }
2506
2507 /*
2508  * qla2x00_find_new_loop_id
2509  *      Scan through our port list and find a new usable loop ID.
2510  *
2511  * Input:
2512  *      ha:     adapter state pointer.
2513  *      dev:    port structure pointer.
2514  *
2515  * Returns:
2516  *      qla2x00 local function return status code.
2517  *
2518  * Context:
2519  *      Kernel context.
2520  */
2521 int
2522 qla2x00_find_new_loop_id(scsi_qla_host_t *ha, fc_port_t *dev)
2523 {
2524         int     rval;
2525         int     found;
2526         fc_port_t *fcport;
2527         uint16_t first_loop_id;
2528
2529         rval = QLA_SUCCESS;
2530
2531         /* Save starting loop ID. */
2532         first_loop_id = dev->loop_id;
2533
2534         for (;;) {
2535                 /* Skip loop ID if already used by adapter. */
2536                 if (dev->loop_id == ha->loop_id) {
2537                         dev->loop_id++;
2538                 }
2539
2540                 /* Skip reserved loop IDs. */
2541                 while (qla2x00_is_reserved_id(ha, dev->loop_id)) {
2542                         dev->loop_id++;
2543                 }
2544
2545                 /* Reset loop ID if passed the end. */
2546                 if (dev->loop_id > ha->last_loop_id) {
2547                         /* first loop ID. */
2548                         dev->loop_id = ha->min_external_loopid;
2549                 }
2550
2551                 /* Check for loop ID being already in use. */
2552                 found = 0;
2553                 fcport = NULL;
2554                 list_for_each_entry(fcport, &ha->fcports, list) {
2555                         if (fcport->loop_id == dev->loop_id && fcport != dev) {
2556                                 /* ID possibly in use */
2557                                 found++;
2558                                 break;
2559                         }
2560                 }
2561
2562                 /* If not in use then it is free to use. */
2563                 if (!found) {
2564                         break;
2565                 }
2566
2567                 /* ID in use. Try next value. */
2568                 dev->loop_id++;
2569
2570                 /* If wrap around. No free ID to use. */
2571                 if (dev->loop_id == first_loop_id) {
2572                         dev->loop_id = FC_NO_LOOP_ID;
2573                         rval = QLA_FUNCTION_FAILED;
2574                         break;
2575                 }
2576         }
2577
2578         return (rval);
2579 }
2580
2581 /*
2582  * qla2x00_device_resync
2583  *      Marks devices in the database that needs resynchronization.
2584  *
2585  * Input:
2586  *      ha = adapter block pointer.
2587  *
2588  * Context:
2589  *      Kernel context.
2590  */
2591 static int
2592 qla2x00_device_resync(scsi_qla_host_t *ha)
2593 {
2594         int     rval;
2595         int     rval2;
2596         uint32_t mask;
2597         fc_port_t *fcport;
2598         uint32_t rscn_entry;
2599         uint8_t rscn_out_iter;
2600         uint8_t format;
2601         port_id_t d_id;
2602
2603         rval = QLA_RSCNS_HANDLED;
2604
2605         while (ha->rscn_out_ptr != ha->rscn_in_ptr ||
2606             ha->flags.rscn_queue_overflow) {
2607
2608                 rscn_entry = ha->rscn_queue[ha->rscn_out_ptr];
2609                 format = MSB(MSW(rscn_entry));
2610                 d_id.b.domain = LSB(MSW(rscn_entry));
2611                 d_id.b.area = MSB(LSW(rscn_entry));
2612                 d_id.b.al_pa = LSB(LSW(rscn_entry));
2613
2614                 DEBUG(printk("scsi(%ld): RSCN queue entry[%d] = "
2615                     "[%02x/%02x%02x%02x].\n",
2616                     ha->host_no, ha->rscn_out_ptr, format, d_id.b.domain,
2617                     d_id.b.area, d_id.b.al_pa));
2618
2619                 ha->rscn_out_ptr++;
2620                 if (ha->rscn_out_ptr == MAX_RSCN_COUNT)
2621                         ha->rscn_out_ptr = 0;
2622
2623                 /* Skip duplicate entries. */
2624                 for (rscn_out_iter = ha->rscn_out_ptr;
2625                     !ha->flags.rscn_queue_overflow &&
2626                     rscn_out_iter != ha->rscn_in_ptr;
2627                     rscn_out_iter = (rscn_out_iter ==
2628                         (MAX_RSCN_COUNT - 1)) ? 0: rscn_out_iter + 1) {
2629
2630                         if (rscn_entry != ha->rscn_queue[rscn_out_iter])
2631                                 break;
2632
2633                         DEBUG(printk("scsi(%ld): Skipping duplicate RSCN queue "
2634                             "entry found at [%d].\n", ha->host_no,
2635                             rscn_out_iter));
2636
2637                         ha->rscn_out_ptr = rscn_out_iter;
2638                 }
2639
2640                 /* Queue overflow, set switch default case. */
2641                 if (ha->flags.rscn_queue_overflow) {
2642                         DEBUG(printk("scsi(%ld): device_resync: rscn "
2643                             "overflow.\n", ha->host_no));
2644
2645                         format = 3;
2646                         ha->flags.rscn_queue_overflow = 0;
2647                 }
2648
2649                 switch (format) {
2650                 case 0:
2651                         if (!IS_QLA2100(ha) && !IS_QLA2200(ha) &&
2652                             !IS_QLA6312(ha) && !IS_QLA6322(ha) &&
2653                             !IS_QLA24XX(ha) && !IS_QLA25XX(ha) &&
2654                             ha->flags.init_done) {
2655                                 /* Handle port RSCN via asyncronous IOCBs */
2656                                 rval2 = qla2x00_handle_port_rscn(ha, rscn_entry,
2657                                     NULL, 0);
2658                                 if (rval2 == QLA_SUCCESS)
2659                                         continue;
2660                         }
2661                         mask = 0xffffff;
2662                         break;
2663                 case 1:
2664                         mask = 0xffff00;
2665                         break;
2666                 case 2:
2667                         mask = 0xff0000;
2668                         break;
2669                 default:
2670                         mask = 0x0;
2671                         d_id.b24 = 0;
2672                         ha->rscn_out_ptr = ha->rscn_in_ptr;
2673                         break;
2674                 }
2675
2676                 rval = QLA_SUCCESS;
2677
2678                 /* Abort any outstanding IO descriptors. */
2679                 if (!IS_QLA2100(ha) && !IS_QLA2200(ha))
2680                         qla2x00_cancel_io_descriptors(ha);
2681
2682                 list_for_each_entry(fcport, &ha->fcports, list) {
2683                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 ||
2684                             (fcport->d_id.b24 & mask) != d_id.b24 ||
2685                             fcport->port_type == FCT_BROADCAST)
2686                                 continue;
2687
2688                         if (atomic_read(&fcport->state) == FCS_ONLINE) {
2689                                 if (format != 3 ||
2690                                     fcport->port_type != FCT_INITIATOR) {
2691                                         qla2x00_mark_device_lost(ha, fcport, 0);
2692                                 }
2693                         }
2694                         fcport->flags &= ~FCF_FARP_DONE;
2695                 }
2696         }
2697         return (rval);
2698 }
2699
2700 /*
2701  * qla2x00_fabric_dev_login
2702  *      Login fabric target device and update FC port database.
2703  *
2704  * Input:
2705  *      ha:             adapter state pointer.
2706  *      fcport:         port structure list pointer.
2707  *      next_loopid:    contains value of a new loop ID that can be used
2708  *                      by the next login attempt.
2709  *
2710  * Returns:
2711  *      qla2x00 local function return status code.
2712  *
2713  * Context:
2714  *      Kernel context.
2715  */
2716 static int
2717 qla2x00_fabric_dev_login(scsi_qla_host_t *ha, fc_port_t *fcport,
2718     uint16_t *next_loopid)
2719 {
2720         int     rval;
2721         int     retry;
2722         uint8_t opts;
2723
2724         rval = QLA_SUCCESS;
2725         retry = 0;
2726
2727         rval = qla2x00_fabric_login(ha, fcport, next_loopid);
2728         if (rval == QLA_SUCCESS) {
2729                 /* Send an ADISC to tape devices.*/
2730                 opts = 0;
2731                 if (fcport->flags & FCF_TAPE_PRESENT)
2732                         opts |= BIT_1;
2733                 rval = qla2x00_get_port_database(ha, fcport, opts);
2734                 if (rval != QLA_SUCCESS) {
2735                         ha->isp_ops.fabric_logout(ha, fcport->loop_id,
2736                             fcport->d_id.b.domain, fcport->d_id.b.area,
2737                             fcport->d_id.b.al_pa);
2738                         qla2x00_mark_device_lost(ha, fcport, 1);
2739
2740                 } else {
2741                         qla2x00_update_fcport(ha, fcport);
2742                 }
2743         }
2744
2745         return (rval);
2746 }
2747
2748 /*
2749  * qla2x00_fabric_login
2750  *      Issue fabric login command.
2751  *
2752  * Input:
2753  *      ha = adapter block pointer.
2754  *      device = pointer to FC device type structure.
2755  *
2756  * Returns:
2757  *      0 - Login successfully
2758  *      1 - Login failed
2759  *      2 - Initiator device
2760  *      3 - Fatal error
2761  */
2762 int
2763 qla2x00_fabric_login(scsi_qla_host_t *ha, fc_port_t *fcport,
2764     uint16_t *next_loopid)
2765 {
2766         int     rval;
2767         int     retry;
2768         uint16_t tmp_loopid;
2769         uint16_t mb[MAILBOX_REGISTER_COUNT];
2770
2771         retry = 0;
2772         tmp_loopid = 0;
2773
2774         for (;;) {
2775                 DEBUG(printk("scsi(%ld): Trying Fabric Login w/loop id 0x%04x "
2776                     "for port %02x%02x%02x.\n",
2777                     ha->host_no, fcport->loop_id, fcport->d_id.b.domain,
2778                     fcport->d_id.b.area, fcport->d_id.b.al_pa));
2779
2780                 /* Login fcport on switch. */
2781                 ha->isp_ops.fabric_login(ha, fcport->loop_id,
2782                     fcport->d_id.b.domain, fcport->d_id.b.area,
2783                     fcport->d_id.b.al_pa, mb, BIT_0);
2784                 if (mb[0] == MBS_PORT_ID_USED) {
2785                         /*
2786                          * Device has another loop ID.  The firmware team
2787                          * recommends the driver perform an implicit login with
2788                          * the specified ID again. The ID we just used is save
2789                          * here so we return with an ID that can be tried by
2790                          * the next login.
2791                          */
2792                         retry++;
2793                         tmp_loopid = fcport->loop_id;
2794                         fcport->loop_id = mb[1];
2795
2796                         DEBUG(printk("Fabric Login: port in use - next "
2797                             "loop id=0x%04x, port Id=%02x%02x%02x.\n",
2798                             fcport->loop_id, fcport->d_id.b.domain,
2799                             fcport->d_id.b.area, fcport->d_id.b.al_pa));
2800
2801                 } else if (mb[0] == MBS_COMMAND_COMPLETE) {
2802                         /*
2803                          * Login succeeded.
2804                          */
2805                         if (retry) {
2806                                 /* A retry occurred before. */
2807                                 *next_loopid = tmp_loopid;
2808                         } else {
2809                                 /*
2810                                  * No retry occurred before. Just increment the
2811                                  * ID value for next login.
2812                                  */
2813                                 *next_loopid = (fcport->loop_id + 1);
2814                         }
2815
2816                         if (mb[1] & BIT_0) {
2817                                 fcport->port_type = FCT_INITIATOR;
2818                         } else {
2819                                 fcport->port_type = FCT_TARGET;
2820                                 if (mb[1] & BIT_1) {
2821                                         fcport->flags |= FCF_TAPE_PRESENT;
2822                                 }
2823                         }
2824
2825                         if (mb[10] & BIT_0)
2826                                 fcport->supported_classes |= FC_COS_CLASS2;
2827                         if (mb[10] & BIT_1)
2828                                 fcport->supported_classes |= FC_COS_CLASS3;
2829
2830                         rval = QLA_SUCCESS;
2831                         break;
2832                 } else if (mb[0] == MBS_LOOP_ID_USED) {
2833                         /*
2834                          * Loop ID already used, try next loop ID.
2835                          */
2836                         fcport->loop_id++;
2837                         rval = qla2x00_find_new_loop_id(ha, fcport);
2838                         if (rval != QLA_SUCCESS) {
2839                                 /* Ran out of loop IDs to use */
2840                                 break;
2841                         }
2842                 } else if (mb[0] == MBS_COMMAND_ERROR) {
2843                         /*
2844                          * Firmware possibly timed out during login. If NO
2845                          * retries are left to do then the device is declared
2846                          * dead.
2847                          */
2848                         *next_loopid = fcport->loop_id;
2849                         ha->isp_ops.fabric_logout(ha, fcport->loop_id,
2850                             fcport->d_id.b.domain, fcport->d_id.b.area,
2851                             fcport->d_id.b.al_pa);
2852                         qla2x00_mark_device_lost(ha, fcport, 1);
2853
2854                         rval = 1;
2855                         break;
2856                 } else {
2857                         /*
2858                          * unrecoverable / not handled error
2859                          */
2860                         DEBUG2(printk("%s(%ld): failed=%x port_id=%02x%02x%02x "
2861                             "loop_id=%x jiffies=%lx.\n",
2862                             __func__, ha->host_no, mb[0],
2863                             fcport->d_id.b.domain, fcport->d_id.b.area,
2864                             fcport->d_id.b.al_pa, fcport->loop_id, jiffies));
2865
2866                         *next_loopid = fcport->loop_id;
2867                         ha->isp_ops.fabric_logout(ha, fcport->loop_id,
2868                             fcport->d_id.b.domain, fcport->d_id.b.area,
2869                             fcport->d_id.b.al_pa);
2870                         fcport->loop_id = FC_NO_LOOP_ID;
2871                         fcport->login_retry = 0;
2872
2873                         rval = 3;
2874                         break;
2875                 }
2876         }
2877
2878         return (rval);
2879 }
2880
2881 /*
2882  * qla2x00_local_device_login
2883  *      Issue local device login command.
2884  *
2885  * Input:
2886  *      ha = adapter block pointer.
2887  *      loop_id = loop id of device to login to.
2888  *
2889  * Returns (Where's the #define!!!!):
2890  *      0 - Login successfully
2891  *      1 - Login failed
2892  *      3 - Fatal error
2893  */
2894 int
2895 qla2x00_local_device_login(scsi_qla_host_t *ha, uint16_t loop_id)
2896 {
2897         int             rval;
2898         uint16_t        mb[MAILBOX_REGISTER_COUNT];
2899
2900         memset(mb, 0, sizeof(mb));
2901         rval = qla2x00_login_local_device(ha, loop_id, mb, BIT_0);
2902         if (rval == QLA_SUCCESS) {
2903                 /* Interrogate mailbox registers for any errors */
2904                 if (mb[0] == MBS_COMMAND_ERROR)
2905                         rval = 1;
2906                 else if (mb[0] == MBS_COMMAND_PARAMETER_ERROR)
2907                         /* device not in PCB table */
2908                         rval = 3;
2909         }
2910
2911         return (rval);
2912 }
2913
2914 /*
2915  *  qla2x00_loop_resync
2916  *      Resync with fibre channel devices.
2917  *
2918  * Input:
2919  *      ha = adapter block pointer.
2920  *
2921  * Returns:
2922  *      0 = success
2923  */
2924 int
2925 qla2x00_loop_resync(scsi_qla_host_t *ha)
2926 {
2927         int   rval;
2928         uint32_t wait_time;
2929
2930         rval = QLA_SUCCESS;
2931
2932         atomic_set(&ha->loop_state, LOOP_UPDATE);
2933         clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
2934         if (ha->flags.online) {
2935                 if (!(rval = qla2x00_fw_ready(ha))) {
2936                         /* Wait at most MAX_TARGET RSCNs for a stable link. */
2937                         wait_time = 256;
2938                         do {
2939                                 atomic_set(&ha->loop_state, LOOP_UPDATE);
2940
2941                                 /* Issue a marker after FW becomes ready. */
2942                                 qla2x00_marker(ha, 0, 0, MK_SYNC_ALL);
2943                                 ha->marker_needed = 0;
2944
2945                                 /* Remap devices on Loop. */
2946                                 clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2947
2948                                 qla2x00_configure_loop(ha);
2949                                 wait_time--;
2950                         } while (!atomic_read(&ha->loop_down_timer) &&
2951                                 !(test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) &&
2952                                 wait_time &&
2953                                 (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)));
2954                 }
2955         }
2956
2957         if (test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2958                 return (QLA_FUNCTION_FAILED);
2959         }
2960
2961         if (rval) {
2962                 DEBUG2_3(printk("%s(): **** FAILED ****\n", __func__));
2963         }
2964
2965         return (rval);
2966 }
2967
2968 void
2969 qla2x00_rescan_fcports(scsi_qla_host_t *ha)
2970 {
2971         int rescan_done;
2972         fc_port_t *fcport;
2973
2974         rescan_done = 0;
2975         list_for_each_entry(fcport, &ha->fcports, list) {
2976                 if ((fcport->flags & FCF_RESCAN_NEEDED) == 0)
2977                         continue;
2978
2979                 qla2x00_update_fcport(ha, fcport);
2980                 fcport->flags &= ~FCF_RESCAN_NEEDED;
2981
2982                 rescan_done = 1;
2983         }
2984         qla2x00_probe_for_all_luns(ha);
2985 }
2986
2987 /*
2988 *  qla2x00_abort_isp
2989 *      Resets ISP and aborts all outstanding commands.
2990 *
2991 * Input:
2992 *      ha           = adapter block pointer.
2993 *
2994 * Returns:
2995 *      0 = success
2996 */
2997 int
2998 qla2x00_abort_isp(scsi_qla_host_t *ha)
2999 {
3000         unsigned long flags = 0;
3001         uint16_t       cnt;
3002         srb_t          *sp;
3003         uint8_t        status = 0;
3004
3005         if (ha->flags.online) {
3006                 ha->flags.online = 0;
3007                 clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
3008
3009                 qla_printk(KERN_INFO, ha,
3010                     "Performing ISP error recovery - ha= %p.\n", ha);
3011                 ha->isp_ops.reset_chip(ha);
3012
3013                 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
3014                 if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
3015                         atomic_set(&ha->loop_state, LOOP_DOWN);
3016                         qla2x00_mark_all_devices_lost(ha);
3017                 } else {
3018                         if (!atomic_read(&ha->loop_down_timer))
3019                                 atomic_set(&ha->loop_down_timer,
3020                                     LOOP_DOWN_TIME);
3021                 }
3022
3023                 spin_lock_irqsave(&ha->hardware_lock, flags);
3024                 /* Requeue all commands in outstanding command list. */
3025                 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
3026                         sp = ha->outstanding_cmds[cnt];
3027                         if (sp) {
3028                                 ha->outstanding_cmds[cnt] = NULL;
3029                                 sp->flags = 0;
3030                                 sp->cmd->result = DID_RESET << 16;
3031                                 sp->cmd->host_scribble = (unsigned char *)NULL;
3032                                 qla2x00_sp_compl(ha, sp);
3033                         }
3034                 }
3035                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3036
3037                 ha->isp_ops.nvram_config(ha);
3038
3039                 if (!qla2x00_restart_isp(ha)) {
3040                         clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
3041
3042                         if (!atomic_read(&ha->loop_down_timer)) {
3043                                 /*
3044                                  * Issue marker command only when we are going
3045                                  * to start the I/O .
3046                                  */
3047                                 ha->marker_needed = 1;
3048                         }
3049
3050                         ha->flags.online = 1;
3051
3052                         ha->isp_ops.enable_intrs(ha);
3053
3054                         ha->isp_abort_cnt = 0;
3055                         clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
3056                 } else {        /* failed the ISP abort */
3057                         ha->flags.online = 1;
3058                         if (test_bit(ISP_ABORT_RETRY, &ha->dpc_flags)) {
3059                                 if (ha->isp_abort_cnt == 0) {
3060                                         qla_printk(KERN_WARNING, ha,
3061                                             "ISP error recovery failed - "
3062                                             "board disabled\n");
3063                                         /*
3064                                          * The next call disables the board
3065                                          * completely.
3066                                          */
3067                                         ha->isp_ops.reset_adapter(ha);
3068                                         ha->flags.online = 0;
3069                                         clear_bit(ISP_ABORT_RETRY,
3070                                             &ha->dpc_flags);
3071                                         status = 0;
3072                                 } else { /* schedule another ISP abort */
3073                                         ha->isp_abort_cnt--;
3074                                         DEBUG(printk("qla%ld: ISP abort - "
3075                                             "retry remaining %d\n",
3076                                             ha->host_no, ha->isp_abort_cnt);)
3077                                         status = 1;
3078                                 }
3079                         } else {
3080                                 ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT;
3081                                 DEBUG(printk("qla2x00(%ld): ISP error recovery "
3082                                     "- retrying (%d) more times\n",
3083                                     ha->host_no, ha->isp_abort_cnt);)
3084                                 set_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
3085                                 status = 1;
3086                         }
3087                 }
3088
3089         }
3090
3091         if (status) {
3092                 qla_printk(KERN_INFO, ha,
3093                         "qla2x00_abort_isp: **** FAILED ****\n");
3094         } else {
3095                 DEBUG(printk(KERN_INFO
3096                                 "qla2x00_abort_isp(%ld): exiting.\n",
3097                                 ha->host_no);)
3098         }
3099
3100         return(status);
3101 }
3102
3103 /*
3104 *  qla2x00_restart_isp
3105 *      restarts the ISP after a reset
3106 *
3107 * Input:
3108 *      ha = adapter block pointer.
3109 *
3110 * Returns:
3111 *      0 = success
3112 */
3113 static int
3114 qla2x00_restart_isp(scsi_qla_host_t *ha)
3115 {
3116         uint8_t         status = 0;
3117         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3118         unsigned long   flags = 0;
3119         uint32_t wait_time;
3120
3121         /* If firmware needs to be loaded */
3122         if (qla2x00_isp_firmware(ha)) {
3123                 ha->flags.online = 0;
3124                 if (!(status = ha->isp_ops.chip_diag(ha))) {
3125                         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
3126                                 status = qla2x00_setup_chip(ha);
3127                                 goto done;
3128                         }
3129
3130                         spin_lock_irqsave(&ha->hardware_lock, flags);
3131
3132                         if (!IS_QLA24XX(ha) && !IS_QLA25XX(ha)) {
3133                                 /*
3134                                  * Disable SRAM, Instruction RAM and GP RAM
3135                                  * parity.
3136                                  */
3137                                 WRT_REG_WORD(&reg->hccr,
3138                                     (HCCR_ENABLE_PARITY + 0x0));
3139                                 RD_REG_WORD(&reg->hccr);
3140                         }
3141
3142                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3143
3144                         status = qla2x00_setup_chip(ha);
3145
3146                         spin_lock_irqsave(&ha->hardware_lock, flags);
3147
3148                         if (!IS_QLA24XX(ha) && !IS_QLA25XX(ha)) {
3149                                 /* Enable proper parity */
3150                                 if (IS_QLA2300(ha))
3151                                         /* SRAM parity */
3152                                         WRT_REG_WORD(&reg->hccr,
3153                                             (HCCR_ENABLE_PARITY + 0x1));
3154                                 else
3155                                         /*
3156                                          * SRAM, Instruction RAM and GP RAM
3157                                          * parity.
3158                                          */
3159                                         WRT_REG_WORD(&reg->hccr,
3160                                             (HCCR_ENABLE_PARITY + 0x7));
3161                                 RD_REG_WORD(&reg->hccr);
3162                         }
3163
3164                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3165                 }
3166         }
3167
3168  done:
3169         if (!status && !(status = qla2x00_init_rings(ha))) {
3170                 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
3171                 if (!(status = qla2x00_fw_ready(ha))) {
3172                         DEBUG(printk("%s(): Start configure loop, "
3173                             "status = %d\n", __func__, status);)
3174
3175                         /* Issue a marker after FW becomes ready. */
3176                         qla2x00_marker(ha, 0, 0, MK_SYNC_ALL);
3177
3178                         ha->flags.online = 1;
3179                         /* Wait at most MAX_TARGET RSCNs for a stable link. */
3180                         wait_time = 256;
3181                         do {
3182                                 clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
3183                                 qla2x00_configure_loop(ha);
3184                                 wait_time--;
3185                         } while (!atomic_read(&ha->loop_down_timer) &&
3186                                 !(test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) &&
3187                                 wait_time &&
3188                                 (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)));
3189                 }
3190
3191                 /* if no cable then assume it's good */
3192                 if ((ha->device_flags & DFLG_NO_CABLE))
3193                         status = 0;
3194
3195                 DEBUG(printk("%s(): Configure loop done, status = 0x%x\n",
3196                                 __func__,
3197                                 status);)
3198         }
3199         return (status);
3200 }
3201
3202 /*
3203 * qla2x00_reset_adapter
3204 *      Reset adapter.
3205 *
3206 * Input:
3207 *      ha = adapter block pointer.
3208 */
3209 void
3210 qla2x00_reset_adapter(scsi_qla_host_t *ha)
3211 {
3212         unsigned long flags = 0;
3213         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3214
3215         ha->flags.online = 0;
3216         ha->isp_ops.disable_intrs(ha);
3217
3218         spin_lock_irqsave(&ha->hardware_lock, flags);
3219         WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
3220         RD_REG_WORD(&reg->hccr);                        /* PCI Posting. */
3221         WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
3222         RD_REG_WORD(&reg->hccr);                        /* PCI Posting. */
3223         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3224 }
3225
3226 void
3227 qla24xx_reset_adapter(scsi_qla_host_t *ha)
3228 {
3229         unsigned long flags = 0;
3230         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
3231
3232         ha->flags.online = 0;
3233         ha->isp_ops.disable_intrs(ha);
3234
3235         spin_lock_irqsave(&ha->hardware_lock, flags);
3236         WRT_REG_DWORD(&reg->hccr, HCCRX_SET_RISC_RESET);
3237         RD_REG_DWORD(&reg->hccr);
3238         WRT_REG_DWORD(&reg->hccr, HCCRX_REL_RISC_PAUSE);
3239         RD_REG_DWORD(&reg->hccr);
3240         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3241 }
3242
3243 int
3244 qla24xx_nvram_config(scsi_qla_host_t *ha)
3245 {
3246         int   rval;
3247         struct init_cb_24xx *icb;
3248         struct nvram_24xx *nv;
3249         uint32_t *dptr;
3250         uint8_t  *dptr1, *dptr2;
3251         uint32_t chksum;
3252         uint16_t cnt;
3253
3254         rval = QLA_SUCCESS;
3255         icb = (struct init_cb_24xx *)ha->init_cb;
3256         nv = (struct nvram_24xx *)ha->request_ring;
3257
3258         /* Determine NVRAM starting address. */
3259         ha->nvram_size = sizeof(struct nvram_24xx);
3260         ha->nvram_base = FA_NVRAM_FUNC0_ADDR;
3261         if (PCI_FUNC(ha->pdev->devfn))
3262                 ha->nvram_base = FA_NVRAM_FUNC1_ADDR;
3263
3264         /* Get NVRAM data and calculate checksum. */
3265         dptr = (uint32_t *)nv;
3266         ha->isp_ops.read_nvram(ha, (uint8_t *)dptr, ha->nvram_base,
3267             ha->nvram_size);
3268         for (cnt = 0, chksum = 0; cnt < ha->nvram_size >> 2; cnt++)
3269                 chksum += le32_to_cpu(*dptr++);
3270
3271         DEBUG5(printk("scsi(%ld): Contents of NVRAM\n", ha->host_no));
3272         DEBUG5(qla2x00_dump_buffer((uint8_t *)ha->request_ring,
3273             ha->nvram_size));
3274
3275         /* Bad NVRAM data, set defaults parameters. */
3276         if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' || nv->id[2] != 'P'
3277             || nv->id[3] != ' ' ||
3278             nv->nvram_version < __constant_cpu_to_le16(ICB_VERSION)) {
3279                 /* Reset NVRAM data. */
3280                 qla_printk(KERN_WARNING, ha, "Inconsistent NVRAM detected: "
3281                     "checksum=0x%x id=%c version=0x%x.\n", chksum, nv->id[0],
3282                     le16_to_cpu(nv->nvram_version));
3283                 qla_printk(KERN_WARNING, ha, "Falling back to functioning (yet "
3284                     "invalid -- WWPN) defaults.\n");
3285
3286                 /*
3287                  * Set default initialization control block.
3288                  */
3289                 memset(nv, 0, ha->nvram_size);
3290                 nv->nvram_version = __constant_cpu_to_le16(ICB_VERSION);
3291                 nv->version = __constant_cpu_to_le16(ICB_VERSION);
3292                 nv->frame_payload_size = __constant_cpu_to_le16(2048);
3293                 nv->execution_throttle = __constant_cpu_to_le16(0xFFFF);
3294                 nv->exchange_count = __constant_cpu_to_le16(0);
3295                 nv->hard_address = __constant_cpu_to_le16(124);
3296                 nv->port_name[0] = 0x21;
3297                 nv->port_name[1] = 0x00 + PCI_FUNC(ha->pdev->devfn);
3298                 nv->port_name[2] = 0x00;
3299                 nv->port_name[3] = 0xe0;
3300                 nv->port_name[4] = 0x8b;
3301                 nv->port_name[5] = 0x1c;
3302                 nv->port_name[6] = 0x55;
3303                 nv->port_name[7] = 0x86;
3304                 nv->node_name[0] = 0x20;
3305                 nv->node_name[1] = 0x00;
3306                 nv->node_name[2] = 0x00;
3307                 nv->node_name[3] = 0xe0;
3308                 nv->node_name[4] = 0x8b;
3309                 nv->node_name[5] = 0x1c;
3310                 nv->node_name[6] = 0x55;
3311                 nv->node_name[7] = 0x86;
3312                 nv->login_retry_count = __constant_cpu_to_le16(8);
3313                 nv->link_down_timeout = __constant_cpu_to_le16(200);
3314                 nv->interrupt_delay_timer = __constant_cpu_to_le16(0);
3315                 nv->login_timeout = __constant_cpu_to_le16(0);
3316                 nv->firmware_options_1 =
3317                     __constant_cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1);
3318                 nv->firmware_options_2 = __constant_cpu_to_le32(2 << 4);
3319                 nv->firmware_options_2 |= __constant_cpu_to_le32(BIT_12);
3320                 nv->firmware_options_3 = __constant_cpu_to_le32(2 << 13);
3321                 nv->host_p = __constant_cpu_to_le32(BIT_11|BIT_10);
3322                 nv->efi_parameters = __constant_cpu_to_le32(0);
3323                 nv->reset_delay = 5;
3324                 nv->max_luns_per_target = __constant_cpu_to_le16(128);
3325                 nv->port_down_retry_count = __constant_cpu_to_le16(30);
3326                 nv->link_down_timeout = __constant_cpu_to_le16(30);
3327
3328                 rval = 1;
3329         }
3330
3331         /* Reset Initialization control block */
3332         memset(icb, 0, sizeof(struct init_cb_24xx));
3333
3334         /* Copy 1st segment. */
3335         dptr1 = (uint8_t *)icb;
3336         dptr2 = (uint8_t *)&nv->version;
3337         cnt = (uint8_t *)&icb->response_q_inpointer - (uint8_t *)&icb->version;
3338         while (cnt--)
3339                 *dptr1++ = *dptr2++;
3340
3341         icb->login_retry_count = nv->login_retry_count;
3342         icb->link_down_timeout = nv->link_down_timeout;
3343
3344         /* Copy 2nd segment. */
3345         dptr1 = (uint8_t *)&icb->interrupt_delay_timer;
3346         dptr2 = (uint8_t *)&nv->interrupt_delay_timer;
3347         cnt = (uint8_t *)&icb->reserved_3 -
3348             (uint8_t *)&icb->interrupt_delay_timer;
3349         while (cnt--)
3350                 *dptr1++ = *dptr2++;
3351
3352         /*
3353          * Setup driver NVRAM options.
3354          */
3355         if (memcmp(nv->model_name, BINZERO, sizeof(nv->model_name)) != 0) {
3356                 char *st, *en;
3357                 uint16_t index;
3358
3359                 strncpy(ha->model_number, nv->model_name,
3360                     sizeof(nv->model_name));
3361                 st = en = ha->model_number;
3362                 en += sizeof(nv->model_name) - 1;
3363                 while (en > st) {
3364                         if (*en != 0x20 && *en != 0x00)
3365                                 break;
3366                         *en-- = '\0';
3367                 }
3368
3369                 index = (ha->pdev->subsystem_device & 0xff);
3370                 if (index < QLA_MODEL_NAMES)
3371                         ha->model_desc = qla2x00_model_desc[index];
3372         } else
3373                 strcpy(ha->model_number, "QLA2462");
3374
3375         /* Prepare nodename */
3376         if ((icb->firmware_options_1 & BIT_14) == 0) {
3377                 /*
3378                  * Firmware will apply the following mask if the nodename was
3379                  * not provided.
3380                  */
3381                 memcpy(icb->node_name, icb->port_name, WWN_SIZE);
3382                 icb->node_name[0] &= 0xF0;
3383         }
3384
3385         /* Set host adapter parameters. */
3386         ha->flags.disable_risc_code_load = 0;
3387         ha->flags.enable_lip_reset = 1;
3388         ha->flags.enable_lip_full_login = 1;
3389         ha->flags.enable_target_reset = 1;
3390         ha->flags.enable_led_scheme = 0;
3391
3392         ha->operating_mode =
3393             (icb->firmware_options_2 & (BIT_6 | BIT_5 | BIT_4)) >> 4;
3394
3395         memcpy(ha->fw_seriallink_options24, nv->seriallink_options,
3396             sizeof(ha->fw_seriallink_options24));
3397
3398         /* save HBA serial number */
3399         ha->serial0 = icb->port_name[5];
3400         ha->serial1 = icb->port_name[6];
3401         ha->serial2 = icb->port_name[7];
3402         ha->node_name = icb->node_name;
3403         ha->port_name = icb->port_name;
3404
3405         ha->retry_count = le16_to_cpu(nv->login_retry_count);
3406
3407         /* Set minimum login_timeout to 4 seconds. */
3408         if (le16_to_cpu(nv->login_timeout) < ql2xlogintimeout)
3409                 nv->login_timeout = cpu_to_le16(ql2xlogintimeout);
3410         if (le16_to_cpu(nv->login_timeout) < 4)
3411                 nv->login_timeout = __constant_cpu_to_le16(4);
3412         ha->login_timeout = le16_to_cpu(nv->login_timeout);
3413         icb->login_timeout = cpu_to_le16(nv->login_timeout);
3414
3415         /* Set minimum RATOV to 200 tenths of a second. */
3416         ha->r_a_tov = 200;
3417
3418         ha->loop_reset_delay = nv->reset_delay;
3419
3420         /* Link Down Timeout = 0:
3421          *
3422          *      When Port Down timer expires we will start returning
3423          *      I/O's to OS with "DID_NO_CONNECT".
3424          *
3425          * Link Down Timeout != 0:
3426          *
3427          *       The driver waits for the link to come up after link down
3428          *       before returning I/Os to OS with "DID_NO_CONNECT".
3429          */
3430         if (le16_to_cpu(nv->link_down_timeout) == 0) {
3431                 ha->loop_down_abort_time =
3432                     (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
3433         } else {
3434                 ha->link_down_timeout = le16_to_cpu(nv->link_down_timeout);
3435                 ha->loop_down_abort_time =
3436                     (LOOP_DOWN_TIME - ha->link_down_timeout);
3437         }
3438
3439         /* Need enough time to try and get the port back. */
3440         ha->port_down_retry_count = le16_to_cpu(nv->port_down_retry_count);
3441         if (qlport_down_retry)
3442                 ha->port_down_retry_count = qlport_down_retry;
3443
3444         /* Set login_retry_count */
3445         ha->login_retry_count  = le16_to_cpu(nv->login_retry_count);
3446         if (ha->port_down_retry_count ==
3447             le16_to_cpu(nv->port_down_retry_count) &&
3448             ha->port_down_retry_count > 3)
3449                 ha->login_retry_count = ha->port_down_retry_count;
3450         else if (ha->port_down_retry_count > (int)ha->login_retry_count)
3451                 ha->login_retry_count = ha->port_down_retry_count;
3452         if (ql2xloginretrycount)
3453                 ha->login_retry_count = ql2xloginretrycount;
3454
3455         /* Enable ZIO. */
3456         if (!ha->flags.init_done) {
3457                 ha->zio_mode = le32_to_cpu(icb->firmware_options_2) &
3458                     (BIT_3 | BIT_2 | BIT_1 | BIT_0);
3459                 ha->zio_timer = le16_to_cpu(icb->interrupt_delay_timer) ?
3460                     le16_to_cpu(icb->interrupt_delay_timer): 2;
3461         }
3462         icb->firmware_options_2 &= __constant_cpu_to_le32(
3463             ~(BIT_3 | BIT_2 | BIT_1 | BIT_0));
3464         ha->flags.process_response_queue = 0;
3465         if (ha->zio_mode != QLA_ZIO_DISABLED) {
3466                 DEBUG2(printk("scsi(%ld): ZIO mode %d enabled; timer delay "
3467                     "(%d us).\n", ha->host_no, ha->zio_mode,
3468                     ha->zio_timer * 100));
3469                 qla_printk(KERN_INFO, ha,
3470                     "ZIO mode %d enabled; timer delay (%d us).\n",
3471                     ha->zio_mode, ha->zio_timer * 100);
3472
3473                 icb->firmware_options_2 |= cpu_to_le32(
3474                     (uint32_t)ha->zio_mode);
3475                 icb->interrupt_delay_timer = cpu_to_le16(ha->zio_timer);
3476                 ha->flags.process_response_queue = 1;
3477         }
3478
3479         if (rval) {
3480                 DEBUG2_3(printk(KERN_WARNING
3481                     "scsi(%ld): NVRAM configuration failed!\n", ha->host_no));
3482         }
3483         return (rval);
3484 }
3485
3486 #if defined(CONFIG_SCSI_QLA2XXX_EMBEDDED_FIRMWARE)
3487
3488 int
3489 qla2x00_load_risc(scsi_qla_host_t *ha, uint32_t *srisc_addr)
3490 {
3491         int     rval, num, i;
3492         uint32_t cnt;
3493         uint16_t *risc_code;
3494         uint32_t risc_addr, risc_size;
3495         uint16_t *req_ring;
3496         struct qla_fw_info *fw_iter;
3497
3498         rval = QLA_SUCCESS;
3499
3500         /* Load firmware sequences */
3501         fw_iter = ha->brd_info->fw_info;
3502         *srisc_addr = *ha->brd_info->fw_info->fwstart;
3503         while (fw_iter->addressing != FW_INFO_ADDR_NOMORE) {
3504                 risc_code = fw_iter->fwcode;
3505                 risc_size = *fw_iter->fwlen;
3506                 if (fw_iter->addressing == FW_INFO_ADDR_NORMAL)
3507                         risc_addr = *fw_iter->fwstart;
3508                 else
3509                         risc_addr = *fw_iter->lfwstart;
3510
3511                 num = 0;
3512                 rval = 0;
3513                 while (risc_size > 0 && !rval) {
3514                         cnt = (uint16_t)(ha->fw_transfer_size >> 1);
3515                         if (cnt > risc_size)
3516                                 cnt = risc_size;
3517
3518                         DEBUG7(printk("scsi(%ld): Loading risc segment@ "
3519                             "addr %p, number of bytes 0x%x, offset 0x%lx.\n",
3520                             ha->host_no, risc_code, cnt, risc_addr));
3521
3522                         req_ring = (uint16_t *)ha->request_ring;
3523                         for (i = 0; i < cnt; i++)
3524                                 req_ring[i] = cpu_to_le16(risc_code[i]);
3525
3526                         rval = qla2x00_load_ram(ha, ha->request_dma, risc_addr,
3527                             cnt);
3528                         if (rval) {
3529                                 DEBUG(printk("scsi(%ld): [ERROR] Failed to "
3530                                     "load segment %d of firmware\n",
3531                                     ha->host_no, num));
3532                                 qla_printk(KERN_WARNING, ha,
3533                                     "[ERROR] Failed to load segment %d of "
3534                                     "firmware\n", num);
3535
3536                                 qla2x00_dump_regs(ha);
3537                                 break;
3538                         }
3539
3540                         risc_code += cnt;
3541                         risc_addr += cnt;
3542                         risc_size -= cnt;
3543                         num++;
3544                 }
3545
3546                 /* Next firmware sequence */
3547                 fw_iter++;
3548         }
3549         return rval;
3550 }
3551
3552 int
3553 qla24xx_load_risc(scsi_qla_host_t *ha, uint32_t *srisc_addr)
3554 {
3555         int     rval, num, i;
3556         uint32_t cnt;
3557         uint32_t *risc_code;
3558         uint32_t risc_addr, risc_size;
3559         uint32_t *req_ring;
3560         struct qla_fw_info *fw_iter;
3561
3562         rval = QLA_SUCCESS;
3563
3564         /* Load firmware sequences */
3565         fw_iter = ha->brd_info->fw_info;
3566         *srisc_addr = *((uint32_t *)fw_iter->lfwstart);
3567         while (fw_iter->addressing != FW_INFO_ADDR_NOMORE) {
3568                 risc_code = (uint32_t *)fw_iter->fwcode;
3569                 risc_size = *((uint32_t *)fw_iter->fwlen);
3570                 risc_addr = *((uint32_t *)fw_iter->lfwstart);
3571
3572                 num = 0;
3573                 rval = 0;
3574                 while (risc_size > 0 && !rval) {
3575                         cnt = (uint32_t)(ha->fw_transfer_size >> 2);
3576                         if (cnt > risc_size)
3577                                 cnt = risc_size;
3578
3579                         DEBUG7(printk("scsi(%ld): Loading risc segment@ "
3580                             "addr %p, number of bytes 0x%x, offset 0x%lx.\n",
3581                             ha->host_no, risc_code, cnt, risc_addr));
3582
3583                         req_ring = (uint32_t *)ha->request_ring;
3584                         for (i = 0; i < cnt; i++)
3585                                 req_ring[i] = cpu_to_le32(risc_code[i]);
3586
3587                         rval = qla2x00_load_ram(ha, ha->request_dma, risc_addr,
3588                             cnt);
3589                         if (rval) {
3590                                 DEBUG(printk("scsi(%ld): [ERROR] Failed to "
3591                                     "load segment %d of firmware\n",
3592                                     ha->host_no, num));
3593                                 qla_printk(KERN_WARNING, ha,
3594                                     "[ERROR] Failed to load segment %d of "
3595                                     "firmware\n", num);
3596
3597                                 qla2x00_dump_regs(ha);
3598                                 break;
3599                         }
3600
3601                         risc_code += cnt;
3602                         risc_addr += cnt;
3603                         risc_size -= cnt;
3604                         num++;
3605                 }
3606
3607                 /* Next firmware sequence */
3608                 fw_iter++;
3609         }
3610         return rval;
3611 }
3612
3613 int
3614 qla24xx_load_risc_flash(scsi_qla_host_t *ha, uint32_t *srisc_addr)
3615 {
3616         int     rval;
3617         int     segments, fragment;
3618         uint32_t faddr;
3619         uint32_t *dcode, dlen;
3620         uint32_t risc_addr;
3621         uint32_t risc_size;
3622         uint32_t i;
3623
3624         rval = QLA_SUCCESS;
3625
3626         segments = FA_RISC_CODE_SEGMENTS;
3627         faddr = FA_RISC_CODE_ADDR;
3628         dcode = (uint32_t *)ha->request_ring;
3629         *srisc_addr = 0;
3630
3631         /* Validate firmware image by checking version. */
3632         qla24xx_read_flash_data(ha, dcode, faddr + 4, 4);
3633         for (i = 0; i < 4; i++)
3634                 dcode[i] = be32_to_cpu(dcode[i]);
3635         if ((dcode[0] == 0xffffffff && dcode[1] == 0xffffffff &&
3636             dcode[2] == 0xffffffff && dcode[3] == 0xffffffff) ||
3637             (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
3638                 dcode[3] == 0)) {
3639                 qla_printk(KERN_WARNING, ha,
3640                     "Unable to verify integrity of flash firmware image!\n");
3641                 qla_printk(KERN_WARNING, ha,
3642                     "Firmware data: %08x %08x %08x %08x!\n", dcode[0],
3643                     dcode[1], dcode[2], dcode[3]);
3644
3645                 return QLA_FUNCTION_FAILED;
3646         }
3647
3648         while (segments && rval == QLA_SUCCESS) {
3649                 /* Read segment's load information. */
3650                 qla24xx_read_flash_data(ha, dcode, faddr, 4);
3651
3652                 risc_addr = be32_to_cpu(dcode[2]);
3653                 *srisc_addr = *srisc_addr == 0 ? risc_addr : *srisc_addr;
3654                 risc_size = be32_to_cpu(dcode[3]);
3655
3656                 fragment = 0;
3657                 while (risc_size > 0 && rval == QLA_SUCCESS) {
3658                         dlen = (uint32_t)(ha->fw_transfer_size >> 2);
3659                         if (dlen > risc_size)
3660                                 dlen = risc_size;
3661
3662                         DEBUG7(printk("scsi(%ld): Loading risc segment@ risc "
3663                             "addr %x, number of dwords 0x%x, offset 0x%x.\n",
3664                             ha->host_no, risc_addr, dlen, faddr));
3665
3666                         qla24xx_read_flash_data(ha, dcode, faddr, dlen);
3667                         for (i = 0; i < dlen; i++)
3668                                 dcode[i] = swab32(dcode[i]);
3669
3670                         rval = qla2x00_load_ram_ext(ha, ha->request_dma,
3671                             risc_addr, dlen);
3672                         if (rval) {
3673                                 DEBUG(printk("scsi(%ld):[ERROR] Failed to load "
3674                                     "segment %d of firmware\n", ha->host_no,
3675                                     fragment));
3676                                 qla_printk(KERN_WARNING, ha,
3677                                     "[ERROR] Failed to load segment %d of "
3678                                     "firmware\n", fragment);
3679                                 break;
3680                         }
3681
3682                         faddr += dlen;
3683                         risc_addr += dlen;
3684                         risc_size -= dlen;
3685                         fragment++;
3686                 }
3687
3688                 /* Next segment. */
3689                 segments--;
3690         }
3691
3692         return rval;
3693 }
3694
3695 #else   /* !defined(CONFIG_SCSI_QLA2XXX_EMBEDDED_FIRMWARE) */
3696
3697 int
3698 qla2x00_load_risc(scsi_qla_host_t *ha, uint32_t *srisc_addr)
3699 {
3700         int     rval;
3701         int     i, fragment;
3702         uint16_t *wcode, *fwcode;
3703         uint32_t risc_addr, risc_size, fwclen, wlen, *seg;
3704         struct fw_blob *blob;
3705
3706         /* Load firmware blob. */
3707         blob = qla2x00_request_firmware(ha);
3708         if (!blob) {
3709                 qla_printk(KERN_ERR, ha, "Firmware image unavailable.\n");
3710                 return QLA_FUNCTION_FAILED;
3711         }
3712
3713         rval = QLA_SUCCESS;
3714
3715         wcode = (uint16_t *)ha->request_ring;
3716         *srisc_addr = 0;
3717         fwcode = (uint16_t *)blob->fw->data;
3718         fwclen = 0;
3719
3720         /* Validate firmware image by checking version. */
3721         if (blob->fw->size < 8 * sizeof(uint16_t)) {
3722                 qla_printk(KERN_WARNING, ha,
3723                     "Unable to verify integrity of firmware image (%Zd)!\n",
3724                     blob->fw->size);
3725                 goto fail_fw_integrity;
3726         }
3727         for (i = 0; i < 4; i++)
3728                 wcode[i] = be16_to_cpu(fwcode[i + 4]);
3729         if ((wcode[0] == 0xffff && wcode[1] == 0xffff && wcode[2] == 0xffff &&
3730             wcode[3] == 0xffff) || (wcode[0] == 0 && wcode[1] == 0 &&
3731                 wcode[2] == 0 && wcode[3] == 0)) {
3732                 qla_printk(KERN_WARNING, ha,
3733                     "Unable to verify integrity of firmware image!\n");
3734                 qla_printk(KERN_WARNING, ha,
3735                     "Firmware data: %04x %04x %04x %04x!\n", wcode[0],
3736                     wcode[1], wcode[2], wcode[3]);
3737                 goto fail_fw_integrity;
3738         }
3739
3740         seg = blob->segs;
3741         while (*seg && rval == QLA_SUCCESS) {
3742                 risc_addr = *seg;
3743                 *srisc_addr = *srisc_addr == 0 ? *seg : *srisc_addr;
3744                 risc_size = be16_to_cpu(fwcode[3]);
3745
3746                 /* Validate firmware image size. */
3747                 fwclen += risc_size * sizeof(uint16_t);
3748                 if (blob->fw->size < fwclen) {
3749                         qla_printk(KERN_WARNING, ha,
3750                             "Unable to verify integrity of firmware image "
3751                             "(%Zd)!\n", blob->fw->size);
3752                         goto fail_fw_integrity;
3753                 }
3754
3755                 fragment = 0;
3756                 while (risc_size > 0 && rval == QLA_SUCCESS) {
3757                         wlen = (uint16_t)(ha->fw_transfer_size >> 1);
3758                         if (wlen > risc_size)
3759                                 wlen = risc_size;
3760
3761                         DEBUG7(printk("scsi(%ld): Loading risc segment@ risc "
3762                             "addr %x, number of words 0x%x.\n", ha->host_no,
3763                             risc_addr, wlen));
3764
3765                         for (i = 0; i < wlen; i++)
3766                                 wcode[i] = swab16(fwcode[i]);
3767
3768                         rval = qla2x00_load_ram(ha, ha->request_dma, risc_addr,
3769                             wlen);
3770                         if (rval) {
3771                                 DEBUG(printk("scsi(%ld):[ERROR] Failed to load "
3772                                     "segment %d of firmware\n", ha->host_no,
3773                                     fragment));
3774                                 qla_printk(KERN_WARNING, ha,
3775                                     "[ERROR] Failed to load segment %d of "
3776                                     "firmware\n", fragment);
3777                                 break;
3778                         }
3779
3780                         fwcode += wlen;
3781                         risc_addr += wlen;
3782                         risc_size -= wlen;
3783                         fragment++;
3784                 }
3785
3786                 /* Next segment. */
3787                 seg++;
3788         }
3789         return rval;
3790
3791 fail_fw_integrity:
3792         return QLA_FUNCTION_FAILED;
3793 }
3794
3795 int
3796 qla24xx_load_risc(scsi_qla_host_t *ha, uint32_t *srisc_addr)
3797 {
3798         int     rval;
3799         int     segments, fragment;
3800         uint32_t *dcode, dlen;
3801         uint32_t risc_addr;
3802         uint32_t risc_size;
3803         uint32_t i;
3804         struct fw_blob *blob;
3805         uint32_t *fwcode, fwclen;
3806
3807         /* Load firmware blob. */
3808         blob = qla2x00_request_firmware(ha);
3809         if (!blob) {
3810                 qla_printk(KERN_ERR, ha, "Firmware image unavailable.\n");
3811                 return QLA_FUNCTION_FAILED;
3812         }
3813
3814         rval = QLA_SUCCESS;
3815
3816         segments = FA_RISC_CODE_SEGMENTS;
3817         dcode = (uint32_t *)ha->request_ring;
3818         *srisc_addr = 0;
3819         fwcode = (uint32_t *)blob->fw->data;
3820         fwclen = 0;
3821
3822         /* Validate firmware image by checking version. */
3823         if (blob->fw->size < 8 * sizeof(uint32_t)) {
3824                 qla_printk(KERN_WARNING, ha,
3825                     "Unable to verify integrity of firmware image (%Zd)!\n",
3826                     blob->fw->size);
3827                 goto fail_fw_integrity;
3828         }
3829         for (i = 0; i < 4; i++)
3830                 dcode[i] = be32_to_cpu(fwcode[i + 4]);
3831         if ((dcode[0] == 0xffffffff && dcode[1] == 0xffffffff &&
3832             dcode[2] == 0xffffffff && dcode[3] == 0xffffffff) ||
3833             (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
3834                 dcode[3] == 0)) {
3835                 qla_printk(KERN_WARNING, ha,
3836                     "Unable to verify integrity of firmware image!\n");
3837                 qla_printk(KERN_WARNING, ha,
3838                     "Firmware data: %08x %08x %08x %08x!\n", dcode[0],
3839                     dcode[1], dcode[2], dcode[3]);
3840                 goto fail_fw_integrity;
3841         }
3842
3843         while (segments && rval == QLA_SUCCESS) {
3844                 risc_addr = be32_to_cpu(fwcode[2]);
3845                 *srisc_addr = *srisc_addr == 0 ? risc_addr : *srisc_addr;
3846                 risc_size = be32_to_cpu(fwcode[3]);
3847
3848                 /* Validate firmware image size. */
3849                 fwclen += risc_size * sizeof(uint32_t);
3850                 if (blob->fw->size < fwclen) {
3851                         qla_printk(KERN_WARNING, ha,
3852                             "Unable to verify integrity of firmware image "
3853                             "(%Zd)!\n", blob->fw->size);
3854
3855                         goto fail_fw_integrity;
3856                 }
3857
3858                 fragment = 0;
3859                 while (risc_size > 0 && rval == QLA_SUCCESS) {
3860                         dlen = (uint32_t)(ha->fw_transfer_size >> 2);
3861                         if (dlen > risc_size)
3862                                 dlen = risc_size;
3863
3864                         DEBUG7(printk("scsi(%ld): Loading risc segment@ risc "
3865                             "addr %x, number of dwords 0x%x.\n", ha->host_no,
3866                             risc_addr, dlen));
3867
3868                         for (i = 0; i < dlen; i++)
3869                                 dcode[i] = swab32(fwcode[i]);
3870
3871                         rval = qla2x00_load_ram_ext(ha, ha->request_dma,
3872                             risc_addr, dlen);
3873                         if (rval) {
3874                                 DEBUG(printk("scsi(%ld):[ERROR] Failed to load "
3875                                     "segment %d of firmware\n", ha->host_no,
3876                                     fragment));
3877                                 qla_printk(KERN_WARNING, ha,
3878                                     "[ERROR] Failed to load segment %d of "
3879                                     "firmware\n", fragment);
3880                                 break;
3881                         }
3882
3883                         fwcode += dlen;
3884                         risc_addr += dlen;
3885                         risc_size -= dlen;
3886                         fragment++;
3887                 }
3888
3889                 /* Next segment. */
3890                 segments--;
3891         }
3892         return rval;
3893
3894 fail_fw_integrity:
3895         return QLA_FUNCTION_FAILED;
3896 }
3897 #endif