1 /* 2 * QLogic qlcnic NIC Driver 3 * Copyright (c) 2009-2013 QLogic Corporation 4 * 5 * See LICENSE.qlcnic for copyright and licensing details. 6 */ 7 8 #include "qlcnic_sriov.h" 9 #include "qlcnic.h" 10 #include "qlcnic_hw.h" 11 12 /* Reset template definitions */ 13 #define QLC_83XX_RESTART_TEMPLATE_SIZE 0x2000 14 #define QLC_83XX_RESET_TEMPLATE_ADDR 0x4F0000 15 #define QLC_83XX_RESET_SEQ_VERSION 0x0101 16 17 #define QLC_83XX_OPCODE_NOP 0x0000 18 #define QLC_83XX_OPCODE_WRITE_LIST 0x0001 19 #define QLC_83XX_OPCODE_READ_WRITE_LIST 0x0002 20 #define QLC_83XX_OPCODE_POLL_LIST 0x0004 21 #define QLC_83XX_OPCODE_POLL_WRITE_LIST 0x0008 22 #define QLC_83XX_OPCODE_READ_MODIFY_WRITE 0x0010 23 #define QLC_83XX_OPCODE_SEQ_PAUSE 0x0020 24 #define QLC_83XX_OPCODE_SEQ_END 0x0040 25 #define QLC_83XX_OPCODE_TMPL_END 0x0080 26 #define QLC_83XX_OPCODE_POLL_READ_LIST 0x0100 27 28 /* EPORT control registers */ 29 #define QLC_83XX_RESET_CONTROL 0x28084E50 30 #define QLC_83XX_RESET_REG 0x28084E60 31 #define QLC_83XX_RESET_PORT0 0x28084E70 32 #define QLC_83XX_RESET_PORT1 0x28084E80 33 #define QLC_83XX_RESET_PORT2 0x28084E90 34 #define QLC_83XX_RESET_PORT3 0x28084EA0 35 #define QLC_83XX_RESET_SRESHIM 0x28084EB0 36 #define QLC_83XX_RESET_EPGSHIM 0x28084EC0 37 #define QLC_83XX_RESET_ETHERPCS 0x28084ED0 38 39 static int qlcnic_83xx_init_default_driver(struct qlcnic_adapter *adapter); 40 static int qlcnic_83xx_check_heartbeat(struct qlcnic_adapter *p_dev); 41 static int qlcnic_83xx_restart_hw(struct qlcnic_adapter *adapter); 42 static int qlcnic_83xx_check_hw_status(struct qlcnic_adapter *p_dev); 43 static int qlcnic_83xx_get_reset_instruction_template(struct qlcnic_adapter *); 44 static void qlcnic_83xx_stop_hw(struct qlcnic_adapter *); 45 46 /* Template header */ 47 struct qlc_83xx_reset_hdr { 48 #if defined(__LITTLE_ENDIAN) 49 u16 version; 50 u16 signature; 51 u16 size; 52 u16 entries; 53 u16 hdr_size; 54 u16 checksum; 55 u16 init_offset; 56 u16 start_offset; 57 #elif defined(__BIG_ENDIAN) 58 u16 signature; 59 u16 version; 60 u16 entries; 61 u16 size; 62 u16 checksum; 63 u16 hdr_size; 64 u16 start_offset; 65 u16 init_offset; 66 #endif 67 } __packed; 68 69 /* Command entry header. */ 70 struct qlc_83xx_entry_hdr { 71 #if defined(__LITTLE_ENDIAN) 72 u16 cmd; 73 u16 size; 74 u16 count; 75 u16 delay; 76 #elif defined(__BIG_ENDIAN) 77 u16 size; 78 u16 cmd; 79 u16 delay; 80 u16 count; 81 #endif 82 } __packed; 83 84 /* Generic poll command */ 85 struct qlc_83xx_poll { 86 u32 mask; 87 u32 status; 88 } __packed; 89 90 /* Read modify write command */ 91 struct qlc_83xx_rmw { 92 u32 mask; 93 u32 xor_value; 94 u32 or_value; 95 #if defined(__LITTLE_ENDIAN) 96 u8 shl; 97 u8 shr; 98 u8 index_a; 99 u8 rsvd; 100 #elif defined(__BIG_ENDIAN) 101 u8 rsvd; 102 u8 index_a; 103 u8 shr; 104 u8 shl; 105 #endif 106 } __packed; 107 108 /* Generic command with 2 DWORD */ 109 struct qlc_83xx_entry { 110 u32 arg1; 111 u32 arg2; 112 } __packed; 113 114 /* Generic command with 4 DWORD */ 115 struct qlc_83xx_quad_entry { 116 u32 dr_addr; 117 u32 dr_value; 118 u32 ar_addr; 119 u32 ar_value; 120 } __packed; 121 static const char *const qlc_83xx_idc_states[] = { 122 "Unknown", 123 "Cold", 124 "Init", 125 "Ready", 126 "Need Reset", 127 "Need Quiesce", 128 "Failed", 129 "Quiesce" 130 }; 131 132 static int 133 qlcnic_83xx_idc_check_driver_presence_reg(struct qlcnic_adapter *adapter) 134 { 135 u32 val; 136 137 val = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE); 138 if ((val & 0xFFFF)) 139 return 1; 140 else 141 return 0; 142 } 143 144 static void qlcnic_83xx_idc_log_state_history(struct qlcnic_adapter *adapter) 145 { 146 u32 cur, prev; 147 cur = adapter->ahw->idc.curr_state; 148 prev = adapter->ahw->idc.prev_state; 149 150 dev_info(&adapter->pdev->dev, 151 "current state = %s, prev state = %s\n", 152 adapter->ahw->idc.name[cur], 153 adapter->ahw->idc.name[prev]); 154 } 155 156 static int qlcnic_83xx_idc_update_audit_reg(struct qlcnic_adapter *adapter, 157 u8 mode, int lock) 158 { 159 u32 val; 160 int seconds; 161 162 if (lock) { 163 if (qlcnic_83xx_lock_driver(adapter)) 164 return -EBUSY; 165 } 166 167 val = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_AUDIT); 168 val |= (adapter->portnum & 0xf); 169 val |= mode << 7; 170 if (mode) 171 seconds = jiffies / HZ - adapter->ahw->idc.sec_counter; 172 else 173 seconds = jiffies / HZ; 174 175 val |= seconds << 8; 176 QLCWRX(adapter->ahw, QLC_83XX_IDC_DRV_AUDIT, val); 177 adapter->ahw->idc.sec_counter = jiffies / HZ; 178 179 if (lock) 180 qlcnic_83xx_unlock_driver(adapter); 181 182 return 0; 183 } 184 185 static void qlcnic_83xx_idc_update_minor_version(struct qlcnic_adapter *adapter) 186 { 187 u32 val; 188 189 val = QLCRDX(adapter->ahw, QLC_83XX_IDC_MIN_VERSION); 190 val = val & ~(0x3 << (adapter->portnum * 2)); 191 val = val | (QLC_83XX_IDC_MINOR_VERSION << (adapter->portnum * 2)); 192 QLCWRX(adapter->ahw, QLC_83XX_IDC_MIN_VERSION, val); 193 } 194 195 static int qlcnic_83xx_idc_update_major_version(struct qlcnic_adapter *adapter, 196 int lock) 197 { 198 u32 val; 199 200 if (lock) { 201 if (qlcnic_83xx_lock_driver(adapter)) 202 return -EBUSY; 203 } 204 205 val = QLCRDX(adapter->ahw, QLC_83XX_IDC_MAJ_VERSION); 206 val = val & ~0xFF; 207 val = val | QLC_83XX_IDC_MAJOR_VERSION; 208 QLCWRX(adapter->ahw, QLC_83XX_IDC_MAJ_VERSION, val); 209 210 if (lock) 211 qlcnic_83xx_unlock_driver(adapter); 212 213 return 0; 214 } 215 216 static int 217 qlcnic_83xx_idc_update_drv_presence_reg(struct qlcnic_adapter *adapter, 218 int status, int lock) 219 { 220 u32 val; 221 222 if (lock) { 223 if (qlcnic_83xx_lock_driver(adapter)) 224 return -EBUSY; 225 } 226 227 val = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE); 228 229 if (status) 230 val = val | (1 << adapter->portnum); 231 else 232 val = val & ~(1 << adapter->portnum); 233 234 QLCWRX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE, val); 235 qlcnic_83xx_idc_update_minor_version(adapter); 236 237 if (lock) 238 qlcnic_83xx_unlock_driver(adapter); 239 240 return 0; 241 } 242 243 static int qlcnic_83xx_idc_check_major_version(struct qlcnic_adapter *adapter) 244 { 245 u32 val; 246 u8 version; 247 248 val = QLCRDX(adapter->ahw, QLC_83XX_IDC_MAJ_VERSION); 249 version = val & 0xFF; 250 251 if (version != QLC_83XX_IDC_MAJOR_VERSION) { 252 dev_info(&adapter->pdev->dev, 253 "%s:mismatch. version 0x%x, expected version 0x%x\n", 254 __func__, version, QLC_83XX_IDC_MAJOR_VERSION); 255 return -EIO; 256 } 257 258 return 0; 259 } 260 261 static int qlcnic_83xx_idc_clear_registers(struct qlcnic_adapter *adapter, 262 int lock) 263 { 264 u32 val; 265 266 if (lock) { 267 if (qlcnic_83xx_lock_driver(adapter)) 268 return -EBUSY; 269 } 270 271 QLCWRX(adapter->ahw, QLC_83XX_IDC_DRV_ACK, 0); 272 /* Clear gracefull reset bit */ 273 val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL); 274 val &= ~QLC_83XX_IDC_GRACEFULL_RESET; 275 QLCWRX(adapter->ahw, QLC_83XX_IDC_CTRL, val); 276 277 if (lock) 278 qlcnic_83xx_unlock_driver(adapter); 279 280 return 0; 281 } 282 283 static int qlcnic_83xx_idc_update_drv_ack_reg(struct qlcnic_adapter *adapter, 284 int flag, int lock) 285 { 286 u32 val; 287 288 if (lock) { 289 if (qlcnic_83xx_lock_driver(adapter)) 290 return -EBUSY; 291 } 292 293 val = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_ACK); 294 if (flag) 295 val = val | (1 << adapter->portnum); 296 else 297 val = val & ~(1 << adapter->portnum); 298 QLCWRX(adapter->ahw, QLC_83XX_IDC_DRV_ACK, val); 299 300 if (lock) 301 qlcnic_83xx_unlock_driver(adapter); 302 303 return 0; 304 } 305 306 static int qlcnic_83xx_idc_check_timeout(struct qlcnic_adapter *adapter, 307 int time_limit) 308 { 309 u64 seconds; 310 311 seconds = jiffies / HZ - adapter->ahw->idc.sec_counter; 312 if (seconds <= time_limit) 313 return 0; 314 else 315 return -EBUSY; 316 } 317 318 /** 319 * qlcnic_83xx_idc_check_reset_ack_reg 320 * 321 * @adapter: adapter structure 322 * 323 * Check ACK wait limit and clear the functions which failed to ACK 324 * 325 * Return 0 if all functions have acknowledged the reset request. 326 **/ 327 static int qlcnic_83xx_idc_check_reset_ack_reg(struct qlcnic_adapter *adapter) 328 { 329 int timeout; 330 u32 ack, presence, val; 331 332 timeout = QLC_83XX_IDC_RESET_TIMEOUT_SECS; 333 ack = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_ACK); 334 presence = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE); 335 dev_info(&adapter->pdev->dev, 336 "%s: ack = 0x%x, presence = 0x%x\n", __func__, ack, presence); 337 if (!((ack & presence) == presence)) { 338 if (qlcnic_83xx_idc_check_timeout(adapter, timeout)) { 339 /* Clear functions which failed to ACK */ 340 dev_info(&adapter->pdev->dev, 341 "%s: ACK wait exceeds time limit\n", __func__); 342 val = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE); 343 val = val & ~(ack ^ presence); 344 if (qlcnic_83xx_lock_driver(adapter)) 345 return -EBUSY; 346 QLCWRX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE, val); 347 dev_info(&adapter->pdev->dev, 348 "%s: updated drv presence reg = 0x%x\n", 349 __func__, val); 350 qlcnic_83xx_unlock_driver(adapter); 351 return 0; 352 353 } else { 354 return 1; 355 } 356 } else { 357 dev_info(&adapter->pdev->dev, 358 "%s: Reset ACK received from all functions\n", 359 __func__); 360 return 0; 361 } 362 } 363 364 /** 365 * qlcnic_83xx_idc_tx_soft_reset 366 * 367 * @adapter: adapter structure 368 * 369 * Handle context deletion and recreation request from transmit routine 370 * 371 * Returns -EBUSY or Success (0) 372 * 373 **/ 374 static int qlcnic_83xx_idc_tx_soft_reset(struct qlcnic_adapter *adapter) 375 { 376 struct net_device *netdev = adapter->netdev; 377 378 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) 379 return -EBUSY; 380 381 netif_device_detach(netdev); 382 qlcnic_down(adapter, netdev); 383 qlcnic_up(adapter, netdev); 384 netif_device_attach(netdev); 385 clear_bit(__QLCNIC_RESETTING, &adapter->state); 386 netdev_info(adapter->netdev, "%s: soft reset complete.\n", __func__); 387 388 return 0; 389 } 390 391 /** 392 * qlcnic_83xx_idc_detach_driver 393 * 394 * @adapter: adapter structure 395 * Detach net interface, stop TX and cleanup resources before the HW reset. 396 * Returns: None 397 * 398 **/ 399 static void qlcnic_83xx_idc_detach_driver(struct qlcnic_adapter *adapter) 400 { 401 int i; 402 struct net_device *netdev = adapter->netdev; 403 404 netif_device_detach(netdev); 405 qlcnic_83xx_detach_mailbox_work(adapter); 406 407 /* Disable mailbox interrupt */ 408 qlcnic_83xx_disable_mbx_intr(adapter); 409 qlcnic_down(adapter, netdev); 410 for (i = 0; i < adapter->ahw->num_msix; i++) { 411 adapter->ahw->intr_tbl[i].id = i; 412 adapter->ahw->intr_tbl[i].enabled = 0; 413 adapter->ahw->intr_tbl[i].src = 0; 414 } 415 416 if (qlcnic_sriov_pf_check(adapter)) 417 qlcnic_sriov_pf_reset(adapter); 418 } 419 420 /** 421 * qlcnic_83xx_idc_attach_driver 422 * 423 * @adapter: adapter structure 424 * 425 * Re-attach and re-enable net interface 426 * Returns: None 427 * 428 **/ 429 static void qlcnic_83xx_idc_attach_driver(struct qlcnic_adapter *adapter) 430 { 431 struct net_device *netdev = adapter->netdev; 432 433 if (netif_running(netdev)) { 434 if (qlcnic_up(adapter, netdev)) 435 goto done; 436 qlcnic_restore_indev_addr(netdev, NETDEV_UP); 437 } 438 done: 439 netif_device_attach(netdev); 440 } 441 442 static int qlcnic_83xx_idc_enter_failed_state(struct qlcnic_adapter *adapter, 443 int lock) 444 { 445 if (lock) { 446 if (qlcnic_83xx_lock_driver(adapter)) 447 return -EBUSY; 448 } 449 450 qlcnic_83xx_idc_clear_registers(adapter, 0); 451 QLCWRX(adapter->ahw, QLC_83XX_IDC_DEV_STATE, QLC_83XX_IDC_DEV_FAILED); 452 if (lock) 453 qlcnic_83xx_unlock_driver(adapter); 454 455 qlcnic_83xx_idc_log_state_history(adapter); 456 dev_info(&adapter->pdev->dev, "Device will enter failed state\n"); 457 458 return 0; 459 } 460 461 static int qlcnic_83xx_idc_enter_init_state(struct qlcnic_adapter *adapter, 462 int lock) 463 { 464 if (lock) { 465 if (qlcnic_83xx_lock_driver(adapter)) 466 return -EBUSY; 467 } 468 469 QLCWRX(adapter->ahw, QLC_83XX_IDC_DEV_STATE, QLC_83XX_IDC_DEV_INIT); 470 471 if (lock) 472 qlcnic_83xx_unlock_driver(adapter); 473 474 return 0; 475 } 476 477 static int qlcnic_83xx_idc_enter_need_quiesce(struct qlcnic_adapter *adapter, 478 int lock) 479 { 480 if (lock) { 481 if (qlcnic_83xx_lock_driver(adapter)) 482 return -EBUSY; 483 } 484 485 QLCWRX(adapter->ahw, QLC_83XX_IDC_DEV_STATE, 486 QLC_83XX_IDC_DEV_NEED_QUISCENT); 487 488 if (lock) 489 qlcnic_83xx_unlock_driver(adapter); 490 491 return 0; 492 } 493 494 static int 495 qlcnic_83xx_idc_enter_need_reset_state(struct qlcnic_adapter *adapter, int lock) 496 { 497 if (lock) { 498 if (qlcnic_83xx_lock_driver(adapter)) 499 return -EBUSY; 500 } 501 502 QLCWRX(adapter->ahw, QLC_83XX_IDC_DEV_STATE, 503 QLC_83XX_IDC_DEV_NEED_RESET); 504 505 if (lock) 506 qlcnic_83xx_unlock_driver(adapter); 507 508 return 0; 509 } 510 511 static int qlcnic_83xx_idc_enter_ready_state(struct qlcnic_adapter *adapter, 512 int lock) 513 { 514 if (lock) { 515 if (qlcnic_83xx_lock_driver(adapter)) 516 return -EBUSY; 517 } 518 519 QLCWRX(adapter->ahw, QLC_83XX_IDC_DEV_STATE, QLC_83XX_IDC_DEV_READY); 520 if (lock) 521 qlcnic_83xx_unlock_driver(adapter); 522 523 return 0; 524 } 525 526 /** 527 * qlcnic_83xx_idc_find_reset_owner_id 528 * 529 * @adapter: adapter structure 530 * 531 * NIC gets precedence over ISCSI and ISCSI has precedence over FCOE. 532 * Within the same class, function with lowest PCI ID assumes ownership 533 * 534 * Returns: reset owner id or failure indication (-EIO) 535 * 536 **/ 537 static int qlcnic_83xx_idc_find_reset_owner_id(struct qlcnic_adapter *adapter) 538 { 539 u32 reg, reg1, reg2, i, j, owner, class; 540 541 reg1 = QLCRDX(adapter->ahw, QLC_83XX_IDC_DEV_PARTITION_INFO_1); 542 reg2 = QLCRDX(adapter->ahw, QLC_83XX_IDC_DEV_PARTITION_INFO_2); 543 owner = QLCNIC_TYPE_NIC; 544 i = 0; 545 j = 0; 546 reg = reg1; 547 548 do { 549 class = (((reg & (0xF << j * 4)) >> j * 4) & 0x3); 550 if (class == owner) 551 break; 552 if (i == (QLC_83XX_IDC_MAX_FUNC_PER_PARTITION_INFO - 1)) { 553 reg = reg2; 554 j = 0; 555 } else { 556 j++; 557 } 558 559 if (i == (QLC_83XX_IDC_MAX_CNA_FUNCTIONS - 1)) { 560 if (owner == QLCNIC_TYPE_NIC) 561 owner = QLCNIC_TYPE_ISCSI; 562 else if (owner == QLCNIC_TYPE_ISCSI) 563 owner = QLCNIC_TYPE_FCOE; 564 else if (owner == QLCNIC_TYPE_FCOE) 565 return -EIO; 566 reg = reg1; 567 j = 0; 568 i = 0; 569 } 570 } while (i++ < QLC_83XX_IDC_MAX_CNA_FUNCTIONS); 571 572 return i; 573 } 574 575 static int qlcnic_83xx_idc_restart_hw(struct qlcnic_adapter *adapter, int lock) 576 { 577 int ret = 0; 578 579 ret = qlcnic_83xx_restart_hw(adapter); 580 581 if (ret) { 582 qlcnic_83xx_idc_enter_failed_state(adapter, lock); 583 } else { 584 qlcnic_83xx_idc_clear_registers(adapter, lock); 585 ret = qlcnic_83xx_idc_enter_ready_state(adapter, lock); 586 } 587 588 return ret; 589 } 590 591 static int qlcnic_83xx_idc_check_fan_failure(struct qlcnic_adapter *adapter) 592 { 593 u32 status; 594 595 status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1); 596 597 if (status & QLCNIC_RCODE_FATAL_ERROR) { 598 dev_err(&adapter->pdev->dev, 599 "peg halt status1=0x%x\n", status); 600 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) { 601 dev_err(&adapter->pdev->dev, 602 "On board active cooling fan failed. " 603 "Device has been halted.\n"); 604 dev_err(&adapter->pdev->dev, 605 "Replace the adapter.\n"); 606 return -EIO; 607 } 608 } 609 610 return 0; 611 } 612 613 int qlcnic_83xx_idc_reattach_driver(struct qlcnic_adapter *adapter) 614 { 615 int err; 616 617 qlcnic_83xx_reinit_mbx_work(adapter->ahw->mailbox); 618 qlcnic_83xx_enable_mbx_interrupt(adapter); 619 620 qlcnic_83xx_initialize_nic(adapter, 1); 621 622 err = qlcnic_sriov_pf_reinit(adapter); 623 if (err) 624 return err; 625 626 qlcnic_83xx_enable_mbx_interrupt(adapter); 627 628 if (qlcnic_83xx_configure_opmode(adapter)) { 629 qlcnic_83xx_idc_enter_failed_state(adapter, 1); 630 return -EIO; 631 } 632 633 if (adapter->nic_ops->init_driver(adapter)) { 634 qlcnic_83xx_idc_enter_failed_state(adapter, 1); 635 return -EIO; 636 } 637 638 if (adapter->portnum == 0) 639 qlcnic_set_drv_version(adapter); 640 641 qlcnic_dcb_get_info(adapter->dcb); 642 qlcnic_83xx_idc_attach_driver(adapter); 643 644 return 0; 645 } 646 647 static void qlcnic_83xx_idc_update_idc_params(struct qlcnic_adapter *adapter) 648 { 649 struct qlcnic_hardware_context *ahw = adapter->ahw; 650 651 qlcnic_83xx_idc_update_drv_presence_reg(adapter, 1, 1); 652 qlcnic_83xx_idc_update_audit_reg(adapter, 0, 1); 653 set_bit(QLC_83XX_MODULE_LOADED, &adapter->ahw->idc.status); 654 655 ahw->idc.quiesce_req = 0; 656 ahw->idc.delay = QLC_83XX_IDC_FW_POLL_DELAY; 657 ahw->idc.err_code = 0; 658 ahw->idc.collect_dump = 0; 659 ahw->reset_context = 0; 660 adapter->tx_timeo_cnt = 0; 661 ahw->idc.delay_reset = 0; 662 663 clear_bit(__QLCNIC_RESETTING, &adapter->state); 664 } 665 666 /** 667 * qlcnic_83xx_idc_ready_state_entry 668 * 669 * @adapter: adapter structure 670 * 671 * Perform ready state initialization, this routine will get invoked only 672 * once from READY state. 673 * 674 * Returns: Error code or Success(0) 675 * 676 **/ 677 int qlcnic_83xx_idc_ready_state_entry(struct qlcnic_adapter *adapter) 678 { 679 struct qlcnic_hardware_context *ahw = adapter->ahw; 680 681 if (ahw->idc.prev_state != QLC_83XX_IDC_DEV_READY) { 682 qlcnic_83xx_idc_update_idc_params(adapter); 683 /* Re-attach the device if required */ 684 if ((ahw->idc.prev_state == QLC_83XX_IDC_DEV_NEED_RESET) || 685 (ahw->idc.prev_state == QLC_83XX_IDC_DEV_INIT)) { 686 if (qlcnic_83xx_idc_reattach_driver(adapter)) 687 return -EIO; 688 } 689 } 690 691 return 0; 692 } 693 694 /** 695 * qlcnic_83xx_idc_vnic_pf_entry 696 * 697 * @adapter: adapter structure 698 * 699 * Ensure vNIC mode privileged function starts only after vNIC mode is 700 * enabled by management function. 701 * If vNIC mode is ready, start initialization. 702 * 703 * Returns: -EIO or 0 704 * 705 **/ 706 int qlcnic_83xx_idc_vnic_pf_entry(struct qlcnic_adapter *adapter) 707 { 708 u32 state; 709 struct qlcnic_hardware_context *ahw = adapter->ahw; 710 711 /* Privileged function waits till mgmt function enables VNIC mode */ 712 state = QLCRDX(adapter->ahw, QLC_83XX_VNIC_STATE); 713 if (state != QLCNIC_DEV_NPAR_OPER) { 714 if (!ahw->idc.vnic_wait_limit--) { 715 qlcnic_83xx_idc_enter_failed_state(adapter, 1); 716 return -EIO; 717 } 718 dev_info(&adapter->pdev->dev, "vNIC mode disabled\n"); 719 return -EIO; 720 721 } else { 722 /* Perform one time initialization from ready state */ 723 if (ahw->idc.vnic_state != QLCNIC_DEV_NPAR_OPER) { 724 qlcnic_83xx_idc_update_idc_params(adapter); 725 726 /* If the previous state is UNKNOWN, device will be 727 already attached properly by Init routine*/ 728 if (ahw->idc.prev_state != QLC_83XX_IDC_DEV_UNKNOWN) { 729 if (qlcnic_83xx_idc_reattach_driver(adapter)) 730 return -EIO; 731 } 732 adapter->ahw->idc.vnic_state = QLCNIC_DEV_NPAR_OPER; 733 dev_info(&adapter->pdev->dev, "vNIC mode enabled\n"); 734 } 735 } 736 737 return 0; 738 } 739 740 static int qlcnic_83xx_idc_unknown_state(struct qlcnic_adapter *adapter) 741 { 742 adapter->ahw->idc.err_code = -EIO; 743 dev_err(&adapter->pdev->dev, 744 "%s: Device in unknown state\n", __func__); 745 clear_bit(__QLCNIC_RESETTING, &adapter->state); 746 return 0; 747 } 748 749 /** 750 * qlcnic_83xx_idc_cold_state 751 * 752 * @adapter: adapter structure 753 * 754 * If HW is up and running device will enter READY state. 755 * If firmware image from host needs to be loaded, device is 756 * forced to start with the file firmware image. 757 * 758 * Returns: Error code or Success(0) 759 * 760 **/ 761 static int qlcnic_83xx_idc_cold_state_handler(struct qlcnic_adapter *adapter) 762 { 763 qlcnic_83xx_idc_update_drv_presence_reg(adapter, 1, 0); 764 qlcnic_83xx_idc_update_audit_reg(adapter, 1, 0); 765 766 if (qlcnic_load_fw_file) { 767 qlcnic_83xx_idc_restart_hw(adapter, 0); 768 } else { 769 if (qlcnic_83xx_check_hw_status(adapter)) { 770 qlcnic_83xx_idc_enter_failed_state(adapter, 0); 771 return -EIO; 772 } else { 773 qlcnic_83xx_idc_enter_ready_state(adapter, 0); 774 } 775 } 776 return 0; 777 } 778 779 /** 780 * qlcnic_83xx_idc_init_state 781 * 782 * @adapter: adapter structure 783 * 784 * Reset owner will restart the device from this state. 785 * Device will enter failed state if it remains 786 * in this state for more than DEV_INIT time limit. 787 * 788 * Returns: Error code or Success(0) 789 * 790 **/ 791 static int qlcnic_83xx_idc_init_state(struct qlcnic_adapter *adapter) 792 { 793 int timeout, ret = 0; 794 u32 owner; 795 796 timeout = QLC_83XX_IDC_INIT_TIMEOUT_SECS; 797 if (adapter->ahw->idc.prev_state == QLC_83XX_IDC_DEV_NEED_RESET) { 798 owner = qlcnic_83xx_idc_find_reset_owner_id(adapter); 799 if (adapter->ahw->pci_func == owner) 800 ret = qlcnic_83xx_idc_restart_hw(adapter, 1); 801 } else { 802 ret = qlcnic_83xx_idc_check_timeout(adapter, timeout); 803 } 804 805 return ret; 806 } 807 808 /** 809 * qlcnic_83xx_idc_ready_state 810 * 811 * @adapter: adapter structure 812 * 813 * Perform IDC protocol specicifed actions after monitoring device state and 814 * events. 815 * 816 * Returns: Error code or Success(0) 817 * 818 **/ 819 static int qlcnic_83xx_idc_ready_state(struct qlcnic_adapter *adapter) 820 { 821 struct qlcnic_hardware_context *ahw = adapter->ahw; 822 struct qlcnic_mailbox *mbx = ahw->mailbox; 823 int ret = 0; 824 u32 val; 825 826 /* Perform NIC configuration based ready state entry actions */ 827 if (ahw->idc.state_entry(adapter)) 828 return -EIO; 829 830 if (qlcnic_check_temp(adapter)) { 831 if (ahw->temp == QLCNIC_TEMP_PANIC) { 832 qlcnic_83xx_idc_check_fan_failure(adapter); 833 dev_err(&adapter->pdev->dev, 834 "Error: device temperature %d above limits\n", 835 adapter->ahw->temp); 836 clear_bit(QLC_83XX_MBX_READY, &mbx->status); 837 set_bit(__QLCNIC_RESETTING, &adapter->state); 838 qlcnic_83xx_idc_detach_driver(adapter); 839 qlcnic_83xx_idc_enter_failed_state(adapter, 1); 840 return -EIO; 841 } 842 } 843 844 val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL); 845 ret = qlcnic_83xx_check_heartbeat(adapter); 846 if (ret) { 847 adapter->flags |= QLCNIC_FW_HANG; 848 if (!(val & QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY)) { 849 clear_bit(QLC_83XX_MBX_READY, &mbx->status); 850 set_bit(__QLCNIC_RESETTING, &adapter->state); 851 qlcnic_83xx_idc_enter_need_reset_state(adapter, 1); 852 } else { 853 netdev_info(adapter->netdev, "%s: Auto firmware recovery is disabled\n", 854 __func__); 855 qlcnic_83xx_idc_enter_failed_state(adapter, 1); 856 } 857 return -EIO; 858 } 859 860 if ((val & QLC_83XX_IDC_GRACEFULL_RESET) || ahw->idc.collect_dump) { 861 clear_bit(QLC_83XX_MBX_READY, &mbx->status); 862 863 /* Move to need reset state and prepare for reset */ 864 qlcnic_83xx_idc_enter_need_reset_state(adapter, 1); 865 return ret; 866 } 867 868 /* Check for soft reset request */ 869 if (ahw->reset_context && 870 !(val & QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY)) { 871 adapter->ahw->reset_context = 0; 872 qlcnic_83xx_idc_tx_soft_reset(adapter); 873 return ret; 874 } 875 876 /* Move to need quiesce state if requested */ 877 if (adapter->ahw->idc.quiesce_req) { 878 qlcnic_83xx_idc_enter_need_quiesce(adapter, 1); 879 qlcnic_83xx_idc_update_audit_reg(adapter, 0, 1); 880 return ret; 881 } 882 883 return ret; 884 } 885 886 /** 887 * qlcnic_83xx_idc_need_reset_state 888 * 889 * @adapter: adapter structure 890 * 891 * Device will remain in this state until: 892 * Reset request ACK's are recieved from all the functions 893 * Wait time exceeds max time limit 894 * 895 * Returns: Error code or Success(0) 896 * 897 **/ 898 static int qlcnic_83xx_idc_need_reset_state(struct qlcnic_adapter *adapter) 899 { 900 struct qlcnic_mailbox *mbx = adapter->ahw->mailbox; 901 int ret = 0; 902 903 if (adapter->ahw->idc.prev_state != QLC_83XX_IDC_DEV_NEED_RESET) { 904 qlcnic_83xx_idc_update_audit_reg(adapter, 0, 1); 905 set_bit(__QLCNIC_RESETTING, &adapter->state); 906 clear_bit(QLC_83XX_MBX_READY, &mbx->status); 907 if (adapter->ahw->nic_mode == QLCNIC_VNIC_MODE) 908 qlcnic_83xx_disable_vnic_mode(adapter, 1); 909 910 if (qlcnic_check_diag_status(adapter)) { 911 dev_info(&adapter->pdev->dev, 912 "%s: Wait for diag completion\n", __func__); 913 adapter->ahw->idc.delay_reset = 1; 914 return 0; 915 } else { 916 qlcnic_83xx_idc_update_drv_ack_reg(adapter, 1, 1); 917 qlcnic_83xx_idc_detach_driver(adapter); 918 } 919 } 920 921 if (qlcnic_check_diag_status(adapter)) { 922 dev_info(&adapter->pdev->dev, 923 "%s: Wait for diag completion\n", __func__); 924 return -1; 925 } else { 926 if (adapter->ahw->idc.delay_reset) { 927 qlcnic_83xx_idc_update_drv_ack_reg(adapter, 1, 1); 928 qlcnic_83xx_idc_detach_driver(adapter); 929 adapter->ahw->idc.delay_reset = 0; 930 } 931 932 /* Check for ACK from other functions */ 933 ret = qlcnic_83xx_idc_check_reset_ack_reg(adapter); 934 if (ret) { 935 dev_info(&adapter->pdev->dev, 936 "%s: Waiting for reset ACK\n", __func__); 937 return -1; 938 } 939 } 940 941 /* Transit to INIT state and restart the HW */ 942 qlcnic_83xx_idc_enter_init_state(adapter, 1); 943 944 return ret; 945 } 946 947 static int qlcnic_83xx_idc_need_quiesce_state(struct qlcnic_adapter *adapter) 948 { 949 dev_err(&adapter->pdev->dev, "%s: TBD\n", __func__); 950 return 0; 951 } 952 953 static void qlcnic_83xx_idc_failed_state(struct qlcnic_adapter *adapter) 954 { 955 struct qlcnic_hardware_context *ahw = adapter->ahw; 956 u32 val, owner; 957 958 val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL); 959 if (val & QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY) { 960 owner = qlcnic_83xx_idc_find_reset_owner_id(adapter); 961 if (ahw->pci_func == owner) { 962 qlcnic_83xx_stop_hw(adapter); 963 qlcnic_dump_fw(adapter); 964 } 965 } 966 967 netdev_warn(adapter->netdev, "%s: Reboot will be required to recover the adapter!!\n", 968 __func__); 969 clear_bit(__QLCNIC_RESETTING, &adapter->state); 970 ahw->idc.err_code = -EIO; 971 972 return; 973 } 974 975 static int qlcnic_83xx_idc_quiesce_state(struct qlcnic_adapter *adapter) 976 { 977 dev_info(&adapter->pdev->dev, "%s: TBD\n", __func__); 978 return 0; 979 } 980 981 static int qlcnic_83xx_idc_check_state_validity(struct qlcnic_adapter *adapter, 982 u32 state) 983 { 984 u32 cur, prev, next; 985 986 cur = adapter->ahw->idc.curr_state; 987 prev = adapter->ahw->idc.prev_state; 988 next = state; 989 990 if ((next < QLC_83XX_IDC_DEV_COLD) || 991 (next > QLC_83XX_IDC_DEV_QUISCENT)) { 992 dev_err(&adapter->pdev->dev, 993 "%s: curr %d, prev %d, next state %d is invalid\n", 994 __func__, cur, prev, state); 995 return 1; 996 } 997 998 if ((cur == QLC_83XX_IDC_DEV_UNKNOWN) && 999 (prev == QLC_83XX_IDC_DEV_UNKNOWN)) { 1000 if ((next != QLC_83XX_IDC_DEV_COLD) && 1001 (next != QLC_83XX_IDC_DEV_READY)) { 1002 dev_err(&adapter->pdev->dev, 1003 "%s: failed, cur %d prev %d next %d\n", 1004 __func__, cur, prev, next); 1005 return 1; 1006 } 1007 } 1008 1009 if (next == QLC_83XX_IDC_DEV_INIT) { 1010 if ((prev != QLC_83XX_IDC_DEV_INIT) && 1011 (prev != QLC_83XX_IDC_DEV_COLD) && 1012 (prev != QLC_83XX_IDC_DEV_NEED_RESET)) { 1013 dev_err(&adapter->pdev->dev, 1014 "%s: failed, cur %d prev %d next %d\n", 1015 __func__, cur, prev, next); 1016 return 1; 1017 } 1018 } 1019 1020 return 0; 1021 } 1022 1023 #ifdef CONFIG_QLCNIC_VXLAN 1024 #define QLC_83XX_ENCAP_TYPE_VXLAN BIT_1 1025 #define QLC_83XX_MATCH_ENCAP_ID BIT_2 1026 #define QLC_83XX_SET_VXLAN_UDP_DPORT BIT_3 1027 #define QLC_83XX_VXLAN_UDP_DPORT(PORT) ((PORT & 0xffff) << 16) 1028 1029 #define QLCNIC_ENABLE_INGRESS_ENCAP_PARSING 1 1030 #define QLCNIC_DISABLE_INGRESS_ENCAP_PARSING 0 1031 1032 static int qlcnic_set_vxlan_port(struct qlcnic_adapter *adapter) 1033 { 1034 u16 port = adapter->ahw->vxlan_port; 1035 struct qlcnic_cmd_args cmd; 1036 int ret = 0; 1037 1038 memset(&cmd, 0, sizeof(cmd)); 1039 1040 ret = qlcnic_alloc_mbx_args(&cmd, adapter, 1041 QLCNIC_CMD_INIT_NIC_FUNC); 1042 if (ret) 1043 return ret; 1044 1045 cmd.req.arg[1] = QLC_83XX_MULTI_TENANCY_INFO; 1046 cmd.req.arg[2] = QLC_83XX_ENCAP_TYPE_VXLAN | 1047 QLC_83XX_SET_VXLAN_UDP_DPORT | 1048 QLC_83XX_VXLAN_UDP_DPORT(port); 1049 1050 ret = qlcnic_issue_cmd(adapter, &cmd); 1051 if (ret) 1052 netdev_err(adapter->netdev, 1053 "Failed to set VXLAN port %d in adapter\n", 1054 port); 1055 1056 qlcnic_free_mbx_args(&cmd); 1057 1058 return ret; 1059 } 1060 1061 static int qlcnic_set_vxlan_parsing(struct qlcnic_adapter *adapter, 1062 bool state) 1063 { 1064 u16 vxlan_port = adapter->ahw->vxlan_port; 1065 struct qlcnic_cmd_args cmd; 1066 int ret = 0; 1067 1068 memset(&cmd, 0, sizeof(cmd)); 1069 1070 ret = qlcnic_alloc_mbx_args(&cmd, adapter, 1071 QLCNIC_CMD_SET_INGRESS_ENCAP); 1072 if (ret) 1073 return ret; 1074 1075 cmd.req.arg[1] = state ? QLCNIC_ENABLE_INGRESS_ENCAP_PARSING : 1076 QLCNIC_DISABLE_INGRESS_ENCAP_PARSING; 1077 1078 ret = qlcnic_issue_cmd(adapter, &cmd); 1079 if (ret) 1080 netdev_err(adapter->netdev, 1081 "Failed to %s VXLAN parsing for port %d\n", 1082 state ? "enable" : "disable", vxlan_port); 1083 else 1084 netdev_info(adapter->netdev, 1085 "%s VXLAN parsing for port %d\n", 1086 state ? "Enabled" : "Disabled", vxlan_port); 1087 1088 qlcnic_free_mbx_args(&cmd); 1089 1090 return ret; 1091 } 1092 #endif 1093 1094 static void qlcnic_83xx_periodic_tasks(struct qlcnic_adapter *adapter) 1095 { 1096 if (adapter->fhash.fnum) 1097 qlcnic_prune_lb_filters(adapter); 1098 1099 #ifdef CONFIG_QLCNIC_VXLAN 1100 if (adapter->flags & QLCNIC_ADD_VXLAN_PORT) { 1101 if (qlcnic_set_vxlan_port(adapter)) 1102 return; 1103 1104 if (qlcnic_set_vxlan_parsing(adapter, true)) 1105 return; 1106 1107 adapter->flags &= ~QLCNIC_ADD_VXLAN_PORT; 1108 } else if (adapter->flags & QLCNIC_DEL_VXLAN_PORT) { 1109 if (qlcnic_set_vxlan_parsing(adapter, false)) 1110 return; 1111 1112 adapter->ahw->vxlan_port = 0; 1113 adapter->flags &= ~QLCNIC_DEL_VXLAN_PORT; 1114 } 1115 #endif 1116 } 1117 1118 /** 1119 * qlcnic_83xx_idc_poll_dev_state 1120 * 1121 * @work: kernel work queue structure used to schedule the function 1122 * 1123 * Poll device state periodically and perform state specific 1124 * actions defined by Inter Driver Communication (IDC) protocol. 1125 * 1126 * Returns: None 1127 * 1128 **/ 1129 void qlcnic_83xx_idc_poll_dev_state(struct work_struct *work) 1130 { 1131 struct qlcnic_adapter *adapter; 1132 u32 state; 1133 1134 adapter = container_of(work, struct qlcnic_adapter, fw_work.work); 1135 state = QLCRDX(adapter->ahw, QLC_83XX_IDC_DEV_STATE); 1136 1137 if (qlcnic_83xx_idc_check_state_validity(adapter, state)) { 1138 qlcnic_83xx_idc_log_state_history(adapter); 1139 adapter->ahw->idc.curr_state = QLC_83XX_IDC_DEV_UNKNOWN; 1140 } else { 1141 adapter->ahw->idc.curr_state = state; 1142 } 1143 1144 switch (adapter->ahw->idc.curr_state) { 1145 case QLC_83XX_IDC_DEV_READY: 1146 qlcnic_83xx_idc_ready_state(adapter); 1147 break; 1148 case QLC_83XX_IDC_DEV_NEED_RESET: 1149 qlcnic_83xx_idc_need_reset_state(adapter); 1150 break; 1151 case QLC_83XX_IDC_DEV_NEED_QUISCENT: 1152 qlcnic_83xx_idc_need_quiesce_state(adapter); 1153 break; 1154 case QLC_83XX_IDC_DEV_FAILED: 1155 qlcnic_83xx_idc_failed_state(adapter); 1156 return; 1157 case QLC_83XX_IDC_DEV_INIT: 1158 qlcnic_83xx_idc_init_state(adapter); 1159 break; 1160 case QLC_83XX_IDC_DEV_QUISCENT: 1161 qlcnic_83xx_idc_quiesce_state(adapter); 1162 break; 1163 default: 1164 qlcnic_83xx_idc_unknown_state(adapter); 1165 return; 1166 } 1167 adapter->ahw->idc.prev_state = adapter->ahw->idc.curr_state; 1168 qlcnic_83xx_periodic_tasks(adapter); 1169 1170 /* Re-schedule the function */ 1171 if (test_bit(QLC_83XX_MODULE_LOADED, &adapter->ahw->idc.status)) 1172 qlcnic_schedule_work(adapter, qlcnic_83xx_idc_poll_dev_state, 1173 adapter->ahw->idc.delay); 1174 } 1175 1176 static void qlcnic_83xx_setup_idc_parameters(struct qlcnic_adapter *adapter) 1177 { 1178 u32 idc_params, val; 1179 1180 if (qlcnic_83xx_lockless_flash_read32(adapter, 1181 QLC_83XX_IDC_FLASH_PARAM_ADDR, 1182 (u8 *)&idc_params, 1)) { 1183 dev_info(&adapter->pdev->dev, 1184 "%s:failed to get IDC params from flash\n", __func__); 1185 adapter->dev_init_timeo = QLC_83XX_IDC_INIT_TIMEOUT_SECS; 1186 adapter->reset_ack_timeo = QLC_83XX_IDC_RESET_TIMEOUT_SECS; 1187 } else { 1188 adapter->dev_init_timeo = idc_params & 0xFFFF; 1189 adapter->reset_ack_timeo = ((idc_params >> 16) & 0xFFFF); 1190 } 1191 1192 adapter->ahw->idc.curr_state = QLC_83XX_IDC_DEV_UNKNOWN; 1193 adapter->ahw->idc.prev_state = QLC_83XX_IDC_DEV_UNKNOWN; 1194 adapter->ahw->idc.delay = QLC_83XX_IDC_FW_POLL_DELAY; 1195 adapter->ahw->idc.err_code = 0; 1196 adapter->ahw->idc.collect_dump = 0; 1197 adapter->ahw->idc.name = (char **)qlc_83xx_idc_states; 1198 1199 clear_bit(__QLCNIC_RESETTING, &adapter->state); 1200 set_bit(QLC_83XX_MODULE_LOADED, &adapter->ahw->idc.status); 1201 1202 /* Check if reset recovery is disabled */ 1203 if (!qlcnic_auto_fw_reset) { 1204 /* Propagate do not reset request to other functions */ 1205 val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL); 1206 val = val | QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY; 1207 QLCWRX(adapter->ahw, QLC_83XX_IDC_CTRL, val); 1208 } 1209 } 1210 1211 static int 1212 qlcnic_83xx_idc_first_to_load_function_handler(struct qlcnic_adapter *adapter) 1213 { 1214 u32 state, val; 1215 1216 if (qlcnic_83xx_lock_driver(adapter)) 1217 return -EIO; 1218 1219 /* Clear driver lock register */ 1220 QLCWRX(adapter->ahw, QLC_83XX_RECOVER_DRV_LOCK, 0); 1221 if (qlcnic_83xx_idc_update_major_version(adapter, 0)) { 1222 qlcnic_83xx_unlock_driver(adapter); 1223 return -EIO; 1224 } 1225 1226 state = QLCRDX(adapter->ahw, QLC_83XX_IDC_DEV_STATE); 1227 if (qlcnic_83xx_idc_check_state_validity(adapter, state)) { 1228 qlcnic_83xx_unlock_driver(adapter); 1229 return -EIO; 1230 } 1231 1232 if (state != QLC_83XX_IDC_DEV_COLD && qlcnic_load_fw_file) { 1233 QLCWRX(adapter->ahw, QLC_83XX_IDC_DEV_STATE, 1234 QLC_83XX_IDC_DEV_COLD); 1235 state = QLC_83XX_IDC_DEV_COLD; 1236 } 1237 1238 adapter->ahw->idc.curr_state = state; 1239 /* First to load function should cold boot the device */ 1240 if (state == QLC_83XX_IDC_DEV_COLD) 1241 qlcnic_83xx_idc_cold_state_handler(adapter); 1242 1243 /* Check if reset recovery is enabled */ 1244 if (qlcnic_auto_fw_reset) { 1245 val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL); 1246 val = val & ~QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY; 1247 QLCWRX(adapter->ahw, QLC_83XX_IDC_CTRL, val); 1248 } 1249 1250 qlcnic_83xx_unlock_driver(adapter); 1251 1252 return 0; 1253 } 1254 1255 int qlcnic_83xx_idc_init(struct qlcnic_adapter *adapter) 1256 { 1257 int ret = -EIO; 1258 1259 qlcnic_83xx_setup_idc_parameters(adapter); 1260 1261 if (qlcnic_83xx_get_reset_instruction_template(adapter)) 1262 return ret; 1263 1264 if (!qlcnic_83xx_idc_check_driver_presence_reg(adapter)) { 1265 if (qlcnic_83xx_idc_first_to_load_function_handler(adapter)) 1266 return -EIO; 1267 } else { 1268 if (qlcnic_83xx_idc_check_major_version(adapter)) 1269 return -EIO; 1270 } 1271 1272 qlcnic_83xx_idc_update_audit_reg(adapter, 0, 1); 1273 1274 return 0; 1275 } 1276 1277 void qlcnic_83xx_idc_exit(struct qlcnic_adapter *adapter) 1278 { 1279 int id; 1280 u32 val; 1281 1282 while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) 1283 usleep_range(10000, 11000); 1284 1285 id = QLCRDX(adapter->ahw, QLC_83XX_DRV_LOCK_ID); 1286 id = id & 0xFF; 1287 1288 if (id == adapter->portnum) { 1289 dev_err(&adapter->pdev->dev, 1290 "%s: wait for lock recovery.. %d\n", __func__, id); 1291 msleep(20); 1292 id = QLCRDX(adapter->ahw, QLC_83XX_DRV_LOCK_ID); 1293 id = id & 0xFF; 1294 } 1295 1296 /* Clear driver presence bit */ 1297 val = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE); 1298 val = val & ~(1 << adapter->portnum); 1299 QLCWRX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE, val); 1300 clear_bit(QLC_83XX_MODULE_LOADED, &adapter->ahw->idc.status); 1301 clear_bit(__QLCNIC_RESETTING, &adapter->state); 1302 1303 cancel_delayed_work_sync(&adapter->fw_work); 1304 } 1305 1306 void qlcnic_83xx_idc_request_reset(struct qlcnic_adapter *adapter, u32 key) 1307 { 1308 u32 val; 1309 1310 if (qlcnic_sriov_vf_check(adapter)) 1311 return; 1312 1313 if (qlcnic_83xx_lock_driver(adapter)) { 1314 dev_err(&adapter->pdev->dev, 1315 "%s:failed, please retry\n", __func__); 1316 return; 1317 } 1318 1319 val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL); 1320 if (val & QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY) { 1321 netdev_info(adapter->netdev, "%s: Auto firmware recovery is disabled\n", 1322 __func__); 1323 qlcnic_83xx_idc_enter_failed_state(adapter, 0); 1324 qlcnic_83xx_unlock_driver(adapter); 1325 return; 1326 } 1327 1328 if (key == QLCNIC_FORCE_FW_RESET) { 1329 val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL); 1330 val = val | QLC_83XX_IDC_GRACEFULL_RESET; 1331 QLCWRX(adapter->ahw, QLC_83XX_IDC_CTRL, val); 1332 } else if (key == QLCNIC_FORCE_FW_DUMP_KEY) { 1333 adapter->ahw->idc.collect_dump = 1; 1334 } 1335 1336 qlcnic_83xx_unlock_driver(adapter); 1337 return; 1338 } 1339 1340 static int qlcnic_83xx_copy_bootloader(struct qlcnic_adapter *adapter) 1341 { 1342 u8 *p_cache; 1343 u32 src, size; 1344 u64 dest; 1345 int ret = -EIO; 1346 1347 src = QLC_83XX_BOOTLOADER_FLASH_ADDR; 1348 dest = QLCRDX(adapter->ahw, QLCNIC_BOOTLOADER_ADDR); 1349 size = QLCRDX(adapter->ahw, QLCNIC_BOOTLOADER_SIZE); 1350 1351 /* alignment check */ 1352 if (size & 0xF) 1353 size = (size + 16) & ~0xF; 1354 1355 p_cache = vzalloc(size); 1356 if (p_cache == NULL) 1357 return -ENOMEM; 1358 1359 ret = qlcnic_83xx_lockless_flash_read32(adapter, src, p_cache, 1360 size / sizeof(u32)); 1361 if (ret) { 1362 vfree(p_cache); 1363 return ret; 1364 } 1365 /* 16 byte write to MS memory */ 1366 ret = qlcnic_ms_mem_write128(adapter, dest, (u32 *)p_cache, 1367 size / 16); 1368 if (ret) { 1369 vfree(p_cache); 1370 return ret; 1371 } 1372 vfree(p_cache); 1373 1374 return ret; 1375 } 1376 1377 static int qlcnic_83xx_copy_fw_file(struct qlcnic_adapter *adapter) 1378 { 1379 struct qlc_83xx_fw_info *fw_info = adapter->ahw->fw_info; 1380 const struct firmware *fw = fw_info->fw; 1381 u32 dest, *p_cache, *temp; 1382 int i, ret = -EIO; 1383 __le32 *temp_le; 1384 u8 data[16]; 1385 size_t size; 1386 u64 addr; 1387 1388 temp = kzalloc(fw->size, GFP_KERNEL); 1389 if (!temp) { 1390 release_firmware(fw); 1391 fw_info->fw = NULL; 1392 return -ENOMEM; 1393 } 1394 1395 temp_le = (__le32 *)fw->data; 1396 1397 /* FW image in file is in little endian, swap the data to nullify 1398 * the effect of writel() operation on big endian platform. 1399 */ 1400 for (i = 0; i < fw->size / sizeof(u32); i++) 1401 temp[i] = __le32_to_cpu(temp_le[i]); 1402 1403 dest = QLCRDX(adapter->ahw, QLCNIC_FW_IMAGE_ADDR); 1404 size = (fw->size & ~0xF); 1405 p_cache = temp; 1406 addr = (u64)dest; 1407 1408 ret = qlcnic_ms_mem_write128(adapter, addr, 1409 p_cache, size / 16); 1410 if (ret) { 1411 dev_err(&adapter->pdev->dev, "MS memory write failed\n"); 1412 goto exit; 1413 } 1414 1415 /* alignment check */ 1416 if (fw->size & 0xF) { 1417 addr = dest + size; 1418 for (i = 0; i < (fw->size & 0xF); i++) 1419 data[i] = temp[size + i]; 1420 for (; i < 16; i++) 1421 data[i] = 0; 1422 ret = qlcnic_ms_mem_write128(adapter, addr, 1423 (u32 *)data, 1); 1424 if (ret) { 1425 dev_err(&adapter->pdev->dev, 1426 "MS memory write failed\n"); 1427 goto exit; 1428 } 1429 } 1430 1431 exit: 1432 release_firmware(fw); 1433 fw_info->fw = NULL; 1434 kfree(temp); 1435 1436 return ret; 1437 } 1438 1439 static void qlcnic_83xx_dump_pause_control_regs(struct qlcnic_adapter *adapter) 1440 { 1441 int i, j; 1442 u32 val = 0, val1 = 0, reg = 0; 1443 int err = 0; 1444 1445 val = QLCRD32(adapter, QLC_83XX_SRE_SHIM_REG, &err); 1446 if (err == -EIO) 1447 return; 1448 dev_info(&adapter->pdev->dev, "SRE-Shim Ctrl:0x%x\n", val); 1449 1450 for (j = 0; j < 2; j++) { 1451 if (j == 0) { 1452 dev_info(&adapter->pdev->dev, 1453 "Port 0 RxB Pause Threshold Regs[TC7..TC0]:"); 1454 reg = QLC_83XX_PORT0_THRESHOLD; 1455 } else if (j == 1) { 1456 dev_info(&adapter->pdev->dev, 1457 "Port 1 RxB Pause Threshold Regs[TC7..TC0]:"); 1458 reg = QLC_83XX_PORT1_THRESHOLD; 1459 } 1460 for (i = 0; i < 8; i++) { 1461 val = QLCRD32(adapter, reg + (i * 0x4), &err); 1462 if (err == -EIO) 1463 return; 1464 dev_info(&adapter->pdev->dev, "0x%x ", val); 1465 } 1466 dev_info(&adapter->pdev->dev, "\n"); 1467 } 1468 1469 for (j = 0; j < 2; j++) { 1470 if (j == 0) { 1471 dev_info(&adapter->pdev->dev, 1472 "Port 0 RxB TC Max Cell Registers[4..1]:"); 1473 reg = QLC_83XX_PORT0_TC_MC_REG; 1474 } else if (j == 1) { 1475 dev_info(&adapter->pdev->dev, 1476 "Port 1 RxB TC Max Cell Registers[4..1]:"); 1477 reg = QLC_83XX_PORT1_TC_MC_REG; 1478 } 1479 for (i = 0; i < 4; i++) { 1480 val = QLCRD32(adapter, reg + (i * 0x4), &err); 1481 if (err == -EIO) 1482 return; 1483 dev_info(&adapter->pdev->dev, "0x%x ", val); 1484 } 1485 dev_info(&adapter->pdev->dev, "\n"); 1486 } 1487 1488 for (j = 0; j < 2; j++) { 1489 if (j == 0) { 1490 dev_info(&adapter->pdev->dev, 1491 "Port 0 RxB Rx TC Stats[TC7..TC0]:"); 1492 reg = QLC_83XX_PORT0_TC_STATS; 1493 } else if (j == 1) { 1494 dev_info(&adapter->pdev->dev, 1495 "Port 1 RxB Rx TC Stats[TC7..TC0]:"); 1496 reg = QLC_83XX_PORT1_TC_STATS; 1497 } 1498 for (i = 7; i >= 0; i--) { 1499 val = QLCRD32(adapter, reg, &err); 1500 if (err == -EIO) 1501 return; 1502 val &= ~(0x7 << 29); /* Reset bits 29 to 31 */ 1503 QLCWR32(adapter, reg, (val | (i << 29))); 1504 val = QLCRD32(adapter, reg, &err); 1505 if (err == -EIO) 1506 return; 1507 dev_info(&adapter->pdev->dev, "0x%x ", val); 1508 } 1509 dev_info(&adapter->pdev->dev, "\n"); 1510 } 1511 1512 val = QLCRD32(adapter, QLC_83XX_PORT2_IFB_THRESHOLD, &err); 1513 if (err == -EIO) 1514 return; 1515 val1 = QLCRD32(adapter, QLC_83XX_PORT3_IFB_THRESHOLD, &err); 1516 if (err == -EIO) 1517 return; 1518 dev_info(&adapter->pdev->dev, 1519 "IFB-Pause Thresholds: Port 2:0x%x, Port 3:0x%x\n", 1520 val, val1); 1521 } 1522 1523 1524 static void qlcnic_83xx_disable_pause_frames(struct qlcnic_adapter *adapter) 1525 { 1526 u32 reg = 0, i, j; 1527 1528 if (qlcnic_83xx_lock_driver(adapter)) { 1529 dev_err(&adapter->pdev->dev, 1530 "%s:failed to acquire driver lock\n", __func__); 1531 return; 1532 } 1533 1534 qlcnic_83xx_dump_pause_control_regs(adapter); 1535 QLCWR32(adapter, QLC_83XX_SRE_SHIM_REG, 0x0); 1536 1537 for (j = 0; j < 2; j++) { 1538 if (j == 0) 1539 reg = QLC_83XX_PORT0_THRESHOLD; 1540 else if (j == 1) 1541 reg = QLC_83XX_PORT1_THRESHOLD; 1542 1543 for (i = 0; i < 8; i++) 1544 QLCWR32(adapter, reg + (i * 0x4), 0x0); 1545 } 1546 1547 for (j = 0; j < 2; j++) { 1548 if (j == 0) 1549 reg = QLC_83XX_PORT0_TC_MC_REG; 1550 else if (j == 1) 1551 reg = QLC_83XX_PORT1_TC_MC_REG; 1552 1553 for (i = 0; i < 4; i++) 1554 QLCWR32(adapter, reg + (i * 0x4), 0x03FF03FF); 1555 } 1556 1557 QLCWR32(adapter, QLC_83XX_PORT2_IFB_THRESHOLD, 0); 1558 QLCWR32(adapter, QLC_83XX_PORT3_IFB_THRESHOLD, 0); 1559 dev_info(&adapter->pdev->dev, 1560 "Disabled pause frames successfully on all ports\n"); 1561 qlcnic_83xx_unlock_driver(adapter); 1562 } 1563 1564 static void qlcnic_83xx_take_eport_out_of_reset(struct qlcnic_adapter *adapter) 1565 { 1566 QLCWR32(adapter, QLC_83XX_RESET_REG, 0); 1567 QLCWR32(adapter, QLC_83XX_RESET_PORT0, 0); 1568 QLCWR32(adapter, QLC_83XX_RESET_PORT1, 0); 1569 QLCWR32(adapter, QLC_83XX_RESET_PORT2, 0); 1570 QLCWR32(adapter, QLC_83XX_RESET_PORT3, 0); 1571 QLCWR32(adapter, QLC_83XX_RESET_SRESHIM, 0); 1572 QLCWR32(adapter, QLC_83XX_RESET_EPGSHIM, 0); 1573 QLCWR32(adapter, QLC_83XX_RESET_ETHERPCS, 0); 1574 QLCWR32(adapter, QLC_83XX_RESET_CONTROL, 1); 1575 } 1576 1577 static int qlcnic_83xx_check_heartbeat(struct qlcnic_adapter *p_dev) 1578 { 1579 u32 heartbeat, peg_status; 1580 int retries, ret = -EIO, err = 0; 1581 1582 retries = QLCNIC_HEARTBEAT_CHECK_RETRY_COUNT; 1583 p_dev->heartbeat = QLC_SHARED_REG_RD32(p_dev, 1584 QLCNIC_PEG_ALIVE_COUNTER); 1585 1586 do { 1587 msleep(QLCNIC_HEARTBEAT_PERIOD_MSECS); 1588 heartbeat = QLC_SHARED_REG_RD32(p_dev, 1589 QLCNIC_PEG_ALIVE_COUNTER); 1590 if (heartbeat != p_dev->heartbeat) { 1591 ret = QLCNIC_RCODE_SUCCESS; 1592 break; 1593 } 1594 } while (--retries); 1595 1596 if (ret) { 1597 dev_err(&p_dev->pdev->dev, "firmware hang detected\n"); 1598 qlcnic_83xx_take_eport_out_of_reset(p_dev); 1599 qlcnic_83xx_disable_pause_frames(p_dev); 1600 peg_status = QLC_SHARED_REG_RD32(p_dev, 1601 QLCNIC_PEG_HALT_STATUS1); 1602 dev_info(&p_dev->pdev->dev, "Dumping HW/FW registers\n" 1603 "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n" 1604 "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n" 1605 "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n" 1606 "PEG_NET_4_PC: 0x%x\n", peg_status, 1607 QLC_SHARED_REG_RD32(p_dev, QLCNIC_PEG_HALT_STATUS2), 1608 QLCRD32(p_dev, QLC_83XX_CRB_PEG_NET_0, &err), 1609 QLCRD32(p_dev, QLC_83XX_CRB_PEG_NET_1, &err), 1610 QLCRD32(p_dev, QLC_83XX_CRB_PEG_NET_2, &err), 1611 QLCRD32(p_dev, QLC_83XX_CRB_PEG_NET_3, &err), 1612 QLCRD32(p_dev, QLC_83XX_CRB_PEG_NET_4, &err)); 1613 1614 if (QLCNIC_FWERROR_CODE(peg_status) == 0x67) 1615 dev_err(&p_dev->pdev->dev, 1616 "Device is being reset err code 0x00006700.\n"); 1617 } 1618 1619 return ret; 1620 } 1621 1622 static int qlcnic_83xx_check_cmd_peg_status(struct qlcnic_adapter *p_dev) 1623 { 1624 int retries = QLCNIC_CMDPEG_CHECK_RETRY_COUNT; 1625 u32 val; 1626 1627 do { 1628 val = QLC_SHARED_REG_RD32(p_dev, QLCNIC_CMDPEG_STATE); 1629 if (val == QLC_83XX_CMDPEG_COMPLETE) 1630 return 0; 1631 msleep(QLCNIC_CMDPEG_CHECK_DELAY); 1632 } while (--retries); 1633 1634 dev_err(&p_dev->pdev->dev, "%s: failed, state = 0x%x\n", __func__, val); 1635 return -EIO; 1636 } 1637 1638 static int qlcnic_83xx_check_hw_status(struct qlcnic_adapter *p_dev) 1639 { 1640 int err; 1641 1642 err = qlcnic_83xx_check_cmd_peg_status(p_dev); 1643 if (err) 1644 return err; 1645 1646 err = qlcnic_83xx_check_heartbeat(p_dev); 1647 if (err) 1648 return err; 1649 1650 return err; 1651 } 1652 1653 static int qlcnic_83xx_poll_reg(struct qlcnic_adapter *p_dev, u32 addr, 1654 int duration, u32 mask, u32 status) 1655 { 1656 int timeout_error, err = 0; 1657 u32 value; 1658 u8 retries; 1659 1660 value = QLCRD32(p_dev, addr, &err); 1661 if (err == -EIO) 1662 return err; 1663 retries = duration / 10; 1664 1665 do { 1666 if ((value & mask) != status) { 1667 timeout_error = 1; 1668 msleep(duration / 10); 1669 value = QLCRD32(p_dev, addr, &err); 1670 if (err == -EIO) 1671 return err; 1672 } else { 1673 timeout_error = 0; 1674 break; 1675 } 1676 } while (retries--); 1677 1678 if (timeout_error) { 1679 p_dev->ahw->reset.seq_error++; 1680 dev_err(&p_dev->pdev->dev, 1681 "%s: Timeout Err, entry_num = %d\n", 1682 __func__, p_dev->ahw->reset.seq_index); 1683 dev_err(&p_dev->pdev->dev, 1684 "0x%08x 0x%08x 0x%08x\n", 1685 value, mask, status); 1686 } 1687 1688 return timeout_error; 1689 } 1690 1691 static int qlcnic_83xx_reset_template_checksum(struct qlcnic_adapter *p_dev) 1692 { 1693 u32 sum = 0; 1694 u16 *buff = (u16 *)p_dev->ahw->reset.buff; 1695 int count = p_dev->ahw->reset.hdr->size / sizeof(u16); 1696 1697 while (count-- > 0) 1698 sum += *buff++; 1699 1700 while (sum >> 16) 1701 sum = (sum & 0xFFFF) + (sum >> 16); 1702 1703 if (~sum) { 1704 return 0; 1705 } else { 1706 dev_err(&p_dev->pdev->dev, "%s: failed\n", __func__); 1707 return -1; 1708 } 1709 } 1710 1711 static int qlcnic_83xx_get_reset_instruction_template(struct qlcnic_adapter *p_dev) 1712 { 1713 struct qlcnic_hardware_context *ahw = p_dev->ahw; 1714 u32 addr, count, prev_ver, curr_ver; 1715 u8 *p_buff; 1716 1717 if (ahw->reset.buff != NULL) { 1718 prev_ver = p_dev->fw_version; 1719 curr_ver = qlcnic_83xx_get_fw_version(p_dev); 1720 if (curr_ver > prev_ver) 1721 kfree(ahw->reset.buff); 1722 else 1723 return 0; 1724 } 1725 1726 ahw->reset.seq_error = 0; 1727 ahw->reset.buff = kzalloc(QLC_83XX_RESTART_TEMPLATE_SIZE, GFP_KERNEL); 1728 if (p_dev->ahw->reset.buff == NULL) 1729 return -ENOMEM; 1730 1731 p_buff = p_dev->ahw->reset.buff; 1732 addr = QLC_83XX_RESET_TEMPLATE_ADDR; 1733 count = sizeof(struct qlc_83xx_reset_hdr) / sizeof(u32); 1734 1735 /* Copy template header from flash */ 1736 if (qlcnic_83xx_flash_read32(p_dev, addr, p_buff, count)) { 1737 dev_err(&p_dev->pdev->dev, "%s: flash read failed\n", __func__); 1738 return -EIO; 1739 } 1740 ahw->reset.hdr = (struct qlc_83xx_reset_hdr *)ahw->reset.buff; 1741 addr = QLC_83XX_RESET_TEMPLATE_ADDR + ahw->reset.hdr->hdr_size; 1742 p_buff = ahw->reset.buff + ahw->reset.hdr->hdr_size; 1743 count = (ahw->reset.hdr->size - ahw->reset.hdr->hdr_size) / sizeof(u32); 1744 1745 /* Copy rest of the template */ 1746 if (qlcnic_83xx_flash_read32(p_dev, addr, p_buff, count)) { 1747 dev_err(&p_dev->pdev->dev, "%s: flash read failed\n", __func__); 1748 return -EIO; 1749 } 1750 1751 if (qlcnic_83xx_reset_template_checksum(p_dev)) 1752 return -EIO; 1753 /* Get Stop, Start and Init command offsets */ 1754 ahw->reset.init_offset = ahw->reset.buff + ahw->reset.hdr->init_offset; 1755 ahw->reset.start_offset = ahw->reset.buff + 1756 ahw->reset.hdr->start_offset; 1757 ahw->reset.stop_offset = ahw->reset.buff + ahw->reset.hdr->hdr_size; 1758 return 0; 1759 } 1760 1761 /* Read Write HW register command */ 1762 static void qlcnic_83xx_read_write_crb_reg(struct qlcnic_adapter *p_dev, 1763 u32 raddr, u32 waddr) 1764 { 1765 int err = 0; 1766 u32 value; 1767 1768 value = QLCRD32(p_dev, raddr, &err); 1769 if (err == -EIO) 1770 return; 1771 qlcnic_83xx_wrt_reg_indirect(p_dev, waddr, value); 1772 } 1773 1774 /* Read Modify Write HW register command */ 1775 static void qlcnic_83xx_rmw_crb_reg(struct qlcnic_adapter *p_dev, 1776 u32 raddr, u32 waddr, 1777 struct qlc_83xx_rmw *p_rmw_hdr) 1778 { 1779 int err = 0; 1780 u32 value; 1781 1782 if (p_rmw_hdr->index_a) { 1783 value = p_dev->ahw->reset.array[p_rmw_hdr->index_a]; 1784 } else { 1785 value = QLCRD32(p_dev, raddr, &err); 1786 if (err == -EIO) 1787 return; 1788 } 1789 1790 value &= p_rmw_hdr->mask; 1791 value <<= p_rmw_hdr->shl; 1792 value >>= p_rmw_hdr->shr; 1793 value |= p_rmw_hdr->or_value; 1794 value ^= p_rmw_hdr->xor_value; 1795 qlcnic_83xx_wrt_reg_indirect(p_dev, waddr, value); 1796 } 1797 1798 /* Write HW register command */ 1799 static void qlcnic_83xx_write_list(struct qlcnic_adapter *p_dev, 1800 struct qlc_83xx_entry_hdr *p_hdr) 1801 { 1802 int i; 1803 struct qlc_83xx_entry *entry; 1804 1805 entry = (struct qlc_83xx_entry *)((char *)p_hdr + 1806 sizeof(struct qlc_83xx_entry_hdr)); 1807 1808 for (i = 0; i < p_hdr->count; i++, entry++) { 1809 qlcnic_83xx_wrt_reg_indirect(p_dev, entry->arg1, 1810 entry->arg2); 1811 if (p_hdr->delay) 1812 udelay((u32)(p_hdr->delay)); 1813 } 1814 } 1815 1816 /* Read and Write instruction */ 1817 static void qlcnic_83xx_read_write_list(struct qlcnic_adapter *p_dev, 1818 struct qlc_83xx_entry_hdr *p_hdr) 1819 { 1820 int i; 1821 struct qlc_83xx_entry *entry; 1822 1823 entry = (struct qlc_83xx_entry *)((char *)p_hdr + 1824 sizeof(struct qlc_83xx_entry_hdr)); 1825 1826 for (i = 0; i < p_hdr->count; i++, entry++) { 1827 qlcnic_83xx_read_write_crb_reg(p_dev, entry->arg1, 1828 entry->arg2); 1829 if (p_hdr->delay) 1830 udelay((u32)(p_hdr->delay)); 1831 } 1832 } 1833 1834 /* Poll HW register command */ 1835 static void qlcnic_83xx_poll_list(struct qlcnic_adapter *p_dev, 1836 struct qlc_83xx_entry_hdr *p_hdr) 1837 { 1838 long delay; 1839 struct qlc_83xx_entry *entry; 1840 struct qlc_83xx_poll *poll; 1841 int i, err = 0; 1842 unsigned long arg1, arg2; 1843 1844 poll = (struct qlc_83xx_poll *)((char *)p_hdr + 1845 sizeof(struct qlc_83xx_entry_hdr)); 1846 1847 entry = (struct qlc_83xx_entry *)((char *)poll + 1848 sizeof(struct qlc_83xx_poll)); 1849 delay = (long)p_hdr->delay; 1850 1851 if (!delay) { 1852 for (i = 0; i < p_hdr->count; i++, entry++) 1853 qlcnic_83xx_poll_reg(p_dev, entry->arg1, 1854 delay, poll->mask, 1855 poll->status); 1856 } else { 1857 for (i = 0; i < p_hdr->count; i++, entry++) { 1858 arg1 = entry->arg1; 1859 arg2 = entry->arg2; 1860 if (delay) { 1861 if (qlcnic_83xx_poll_reg(p_dev, 1862 arg1, delay, 1863 poll->mask, 1864 poll->status)){ 1865 QLCRD32(p_dev, arg1, &err); 1866 if (err == -EIO) 1867 return; 1868 QLCRD32(p_dev, arg2, &err); 1869 if (err == -EIO) 1870 return; 1871 } 1872 } 1873 } 1874 } 1875 } 1876 1877 /* Poll and write HW register command */ 1878 static void qlcnic_83xx_poll_write_list(struct qlcnic_adapter *p_dev, 1879 struct qlc_83xx_entry_hdr *p_hdr) 1880 { 1881 int i; 1882 long delay; 1883 struct qlc_83xx_quad_entry *entry; 1884 struct qlc_83xx_poll *poll; 1885 1886 poll = (struct qlc_83xx_poll *)((char *)p_hdr + 1887 sizeof(struct qlc_83xx_entry_hdr)); 1888 entry = (struct qlc_83xx_quad_entry *)((char *)poll + 1889 sizeof(struct qlc_83xx_poll)); 1890 delay = (long)p_hdr->delay; 1891 1892 for (i = 0; i < p_hdr->count; i++, entry++) { 1893 qlcnic_83xx_wrt_reg_indirect(p_dev, entry->dr_addr, 1894 entry->dr_value); 1895 qlcnic_83xx_wrt_reg_indirect(p_dev, entry->ar_addr, 1896 entry->ar_value); 1897 if (delay) 1898 qlcnic_83xx_poll_reg(p_dev, entry->ar_addr, delay, 1899 poll->mask, poll->status); 1900 } 1901 } 1902 1903 /* Read Modify Write register command */ 1904 static void qlcnic_83xx_read_modify_write(struct qlcnic_adapter *p_dev, 1905 struct qlc_83xx_entry_hdr *p_hdr) 1906 { 1907 int i; 1908 struct qlc_83xx_entry *entry; 1909 struct qlc_83xx_rmw *rmw_hdr; 1910 1911 rmw_hdr = (struct qlc_83xx_rmw *)((char *)p_hdr + 1912 sizeof(struct qlc_83xx_entry_hdr)); 1913 1914 entry = (struct qlc_83xx_entry *)((char *)rmw_hdr + 1915 sizeof(struct qlc_83xx_rmw)); 1916 1917 for (i = 0; i < p_hdr->count; i++, entry++) { 1918 qlcnic_83xx_rmw_crb_reg(p_dev, entry->arg1, 1919 entry->arg2, rmw_hdr); 1920 if (p_hdr->delay) 1921 udelay((u32)(p_hdr->delay)); 1922 } 1923 } 1924 1925 static void qlcnic_83xx_pause(struct qlc_83xx_entry_hdr *p_hdr) 1926 { 1927 if (p_hdr->delay) 1928 mdelay((u32)((long)p_hdr->delay)); 1929 } 1930 1931 /* Read and poll register command */ 1932 static void qlcnic_83xx_poll_read_list(struct qlcnic_adapter *p_dev, 1933 struct qlc_83xx_entry_hdr *p_hdr) 1934 { 1935 long delay; 1936 int index, i, j, err; 1937 struct qlc_83xx_quad_entry *entry; 1938 struct qlc_83xx_poll *poll; 1939 unsigned long addr; 1940 1941 poll = (struct qlc_83xx_poll *)((char *)p_hdr + 1942 sizeof(struct qlc_83xx_entry_hdr)); 1943 1944 entry = (struct qlc_83xx_quad_entry *)((char *)poll + 1945 sizeof(struct qlc_83xx_poll)); 1946 delay = (long)p_hdr->delay; 1947 1948 for (i = 0; i < p_hdr->count; i++, entry++) { 1949 qlcnic_83xx_wrt_reg_indirect(p_dev, entry->ar_addr, 1950 entry->ar_value); 1951 if (delay) { 1952 if (!qlcnic_83xx_poll_reg(p_dev, entry->ar_addr, delay, 1953 poll->mask, poll->status)){ 1954 index = p_dev->ahw->reset.array_index; 1955 addr = entry->dr_addr; 1956 j = QLCRD32(p_dev, addr, &err); 1957 if (err == -EIO) 1958 return; 1959 1960 p_dev->ahw->reset.array[index++] = j; 1961 1962 if (index == QLC_83XX_MAX_RESET_SEQ_ENTRIES) 1963 p_dev->ahw->reset.array_index = 1; 1964 } 1965 } 1966 } 1967 } 1968 1969 static inline void qlcnic_83xx_seq_end(struct qlcnic_adapter *p_dev) 1970 { 1971 p_dev->ahw->reset.seq_end = 1; 1972 } 1973 1974 static void qlcnic_83xx_template_end(struct qlcnic_adapter *p_dev) 1975 { 1976 p_dev->ahw->reset.template_end = 1; 1977 if (p_dev->ahw->reset.seq_error == 0) 1978 dev_err(&p_dev->pdev->dev, 1979 "HW restart process completed successfully.\n"); 1980 else 1981 dev_err(&p_dev->pdev->dev, 1982 "HW restart completed with timeout errors.\n"); 1983 } 1984 1985 /** 1986 * qlcnic_83xx_exec_template_cmd 1987 * 1988 * @p_dev: adapter structure 1989 * @p_buff: Poiter to instruction template 1990 * 1991 * Template provides instructions to stop, restart and initalize firmware. 1992 * These instructions are abstracted as a series of read, write and 1993 * poll operations on hardware registers. Register information and operation 1994 * specifics are not exposed to the driver. Driver reads the template from 1995 * flash and executes the instructions located at pre-defined offsets. 1996 * 1997 * Returns: None 1998 * */ 1999 static void qlcnic_83xx_exec_template_cmd(struct qlcnic_adapter *p_dev, 2000 char *p_buff) 2001 { 2002 int index, entries; 2003 struct qlc_83xx_entry_hdr *p_hdr; 2004 char *entry = p_buff; 2005 2006 p_dev->ahw->reset.seq_end = 0; 2007 p_dev->ahw->reset.template_end = 0; 2008 entries = p_dev->ahw->reset.hdr->entries; 2009 index = p_dev->ahw->reset.seq_index; 2010 2011 for (; (!p_dev->ahw->reset.seq_end) && (index < entries); index++) { 2012 p_hdr = (struct qlc_83xx_entry_hdr *)entry; 2013 2014 switch (p_hdr->cmd) { 2015 case QLC_83XX_OPCODE_NOP: 2016 break; 2017 case QLC_83XX_OPCODE_WRITE_LIST: 2018 qlcnic_83xx_write_list(p_dev, p_hdr); 2019 break; 2020 case QLC_83XX_OPCODE_READ_WRITE_LIST: 2021 qlcnic_83xx_read_write_list(p_dev, p_hdr); 2022 break; 2023 case QLC_83XX_OPCODE_POLL_LIST: 2024 qlcnic_83xx_poll_list(p_dev, p_hdr); 2025 break; 2026 case QLC_83XX_OPCODE_POLL_WRITE_LIST: 2027 qlcnic_83xx_poll_write_list(p_dev, p_hdr); 2028 break; 2029 case QLC_83XX_OPCODE_READ_MODIFY_WRITE: 2030 qlcnic_83xx_read_modify_write(p_dev, p_hdr); 2031 break; 2032 case QLC_83XX_OPCODE_SEQ_PAUSE: 2033 qlcnic_83xx_pause(p_hdr); 2034 break; 2035 case QLC_83XX_OPCODE_SEQ_END: 2036 qlcnic_83xx_seq_end(p_dev); 2037 break; 2038 case QLC_83XX_OPCODE_TMPL_END: 2039 qlcnic_83xx_template_end(p_dev); 2040 break; 2041 case QLC_83XX_OPCODE_POLL_READ_LIST: 2042 qlcnic_83xx_poll_read_list(p_dev, p_hdr); 2043 break; 2044 default: 2045 dev_err(&p_dev->pdev->dev, 2046 "%s: Unknown opcode 0x%04x in template %d\n", 2047 __func__, p_hdr->cmd, index); 2048 break; 2049 } 2050 entry += p_hdr->size; 2051 } 2052 p_dev->ahw->reset.seq_index = index; 2053 } 2054 2055 static void qlcnic_83xx_stop_hw(struct qlcnic_adapter *p_dev) 2056 { 2057 p_dev->ahw->reset.seq_index = 0; 2058 2059 qlcnic_83xx_exec_template_cmd(p_dev, p_dev->ahw->reset.stop_offset); 2060 if (p_dev->ahw->reset.seq_end != 1) 2061 dev_err(&p_dev->pdev->dev, "%s: failed\n", __func__); 2062 } 2063 2064 static void qlcnic_83xx_start_hw(struct qlcnic_adapter *p_dev) 2065 { 2066 qlcnic_83xx_exec_template_cmd(p_dev, p_dev->ahw->reset.start_offset); 2067 if (p_dev->ahw->reset.template_end != 1) 2068 dev_err(&p_dev->pdev->dev, "%s: failed\n", __func__); 2069 } 2070 2071 static void qlcnic_83xx_init_hw(struct qlcnic_adapter *p_dev) 2072 { 2073 qlcnic_83xx_exec_template_cmd(p_dev, p_dev->ahw->reset.init_offset); 2074 if (p_dev->ahw->reset.seq_end != 1) 2075 dev_err(&p_dev->pdev->dev, "%s: failed\n", __func__); 2076 } 2077 2078 static int qlcnic_83xx_load_fw_image_from_host(struct qlcnic_adapter *adapter) 2079 { 2080 struct qlc_83xx_fw_info *fw_info = adapter->ahw->fw_info; 2081 int err = -EIO; 2082 2083 if (request_firmware(&fw_info->fw, fw_info->fw_file_name, 2084 &(adapter->pdev->dev))) { 2085 dev_err(&adapter->pdev->dev, 2086 "No file FW image, loading flash FW image.\n"); 2087 QLC_SHARED_REG_WR32(adapter, QLCNIC_FW_IMG_VALID, 2088 QLC_83XX_BOOT_FROM_FLASH); 2089 } else { 2090 if (qlcnic_83xx_copy_fw_file(adapter)) 2091 return err; 2092 QLC_SHARED_REG_WR32(adapter, QLCNIC_FW_IMG_VALID, 2093 QLC_83XX_BOOT_FROM_FILE); 2094 } 2095 2096 return 0; 2097 } 2098 2099 static int qlcnic_83xx_restart_hw(struct qlcnic_adapter *adapter) 2100 { 2101 u32 val; 2102 int err = -EIO; 2103 2104 qlcnic_83xx_stop_hw(adapter); 2105 2106 /* Collect FW register dump if required */ 2107 val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL); 2108 if (!(val & QLC_83XX_IDC_GRACEFULL_RESET)) 2109 qlcnic_dump_fw(adapter); 2110 2111 if (val & QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY) { 2112 netdev_info(adapter->netdev, "%s: Auto firmware recovery is disabled\n", 2113 __func__); 2114 qlcnic_83xx_idc_enter_failed_state(adapter, 1); 2115 return err; 2116 } 2117 2118 qlcnic_83xx_init_hw(adapter); 2119 2120 if (qlcnic_83xx_copy_bootloader(adapter)) 2121 return err; 2122 /* Boot either flash image or firmware image from host file system */ 2123 if (qlcnic_load_fw_file) { 2124 if (qlcnic_83xx_load_fw_image_from_host(adapter)) 2125 return err; 2126 } else { 2127 QLC_SHARED_REG_WR32(adapter, QLCNIC_FW_IMG_VALID, 2128 QLC_83XX_BOOT_FROM_FLASH); 2129 } 2130 2131 qlcnic_83xx_start_hw(adapter); 2132 if (qlcnic_83xx_check_hw_status(adapter)) 2133 return -EIO; 2134 2135 return 0; 2136 } 2137 2138 static int qlcnic_83xx_get_nic_configuration(struct qlcnic_adapter *adapter) 2139 { 2140 int err; 2141 struct qlcnic_info nic_info; 2142 struct qlcnic_hardware_context *ahw = adapter->ahw; 2143 2144 memset(&nic_info, 0, sizeof(struct qlcnic_info)); 2145 err = qlcnic_get_nic_info(adapter, &nic_info, ahw->pci_func); 2146 if (err) 2147 return -EIO; 2148 2149 ahw->physical_port = (u8) nic_info.phys_port; 2150 ahw->switch_mode = nic_info.switch_mode; 2151 ahw->max_tx_ques = nic_info.max_tx_ques; 2152 ahw->max_rx_ques = nic_info.max_rx_ques; 2153 ahw->capabilities = nic_info.capabilities; 2154 ahw->max_mac_filters = nic_info.max_mac_filters; 2155 ahw->max_mtu = nic_info.max_mtu; 2156 2157 /* eSwitch capability indicates vNIC mode. 2158 * vNIC and SRIOV are mutually exclusive operational modes. 2159 * If SR-IOV capability is detected, SR-IOV physical function 2160 * will get initialized in default mode. 2161 * SR-IOV virtual function initialization follows a 2162 * different code path and opmode. 2163 * SRIOV mode has precedence over vNIC mode. 2164 */ 2165 if (test_bit(__QLCNIC_SRIOV_CAPABLE, &adapter->state)) 2166 return QLC_83XX_DEFAULT_OPMODE; 2167 2168 if (ahw->capabilities & QLC_83XX_ESWITCH_CAPABILITY) 2169 return QLCNIC_VNIC_MODE; 2170 2171 return QLC_83XX_DEFAULT_OPMODE; 2172 } 2173 2174 int qlcnic_83xx_configure_opmode(struct qlcnic_adapter *adapter) 2175 { 2176 struct qlcnic_hardware_context *ahw = adapter->ahw; 2177 u16 max_sds_rings, max_tx_rings; 2178 int ret; 2179 2180 ret = qlcnic_83xx_get_nic_configuration(adapter); 2181 if (ret == -EIO) 2182 return -EIO; 2183 2184 if (ret == QLCNIC_VNIC_MODE) { 2185 ahw->nic_mode = QLCNIC_VNIC_MODE; 2186 2187 if (qlcnic_83xx_config_vnic_opmode(adapter)) 2188 return -EIO; 2189 2190 max_sds_rings = QLCNIC_MAX_VNIC_SDS_RINGS; 2191 max_tx_rings = QLCNIC_MAX_VNIC_TX_RINGS; 2192 } else if (ret == QLC_83XX_DEFAULT_OPMODE) { 2193 ahw->nic_mode = QLCNIC_DEFAULT_MODE; 2194 adapter->nic_ops->init_driver = qlcnic_83xx_init_default_driver; 2195 ahw->idc.state_entry = qlcnic_83xx_idc_ready_state_entry; 2196 max_sds_rings = QLCNIC_MAX_SDS_RINGS; 2197 max_tx_rings = QLCNIC_MAX_TX_RINGS; 2198 } else { 2199 dev_err(&adapter->pdev->dev, "%s: Invalid opmode %d\n", 2200 __func__, ret); 2201 return -EIO; 2202 } 2203 2204 adapter->max_sds_rings = min(ahw->max_rx_ques, max_sds_rings); 2205 adapter->max_tx_rings = min(ahw->max_tx_ques, max_tx_rings); 2206 2207 return 0; 2208 } 2209 2210 static void qlcnic_83xx_config_buff_descriptors(struct qlcnic_adapter *adapter) 2211 { 2212 struct qlcnic_hardware_context *ahw = adapter->ahw; 2213 2214 if (ahw->port_type == QLCNIC_XGBE) { 2215 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G; 2216 adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G; 2217 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G; 2218 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G; 2219 2220 } else if (ahw->port_type == QLCNIC_GBE) { 2221 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G; 2222 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G; 2223 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G; 2224 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G; 2225 } 2226 adapter->num_txd = MAX_CMD_DESCRIPTORS; 2227 adapter->max_rds_rings = MAX_RDS_RINGS; 2228 } 2229 2230 static int qlcnic_83xx_init_default_driver(struct qlcnic_adapter *adapter) 2231 { 2232 int err = -EIO; 2233 2234 qlcnic_83xx_get_minidump_template(adapter); 2235 if (qlcnic_83xx_get_port_info(adapter)) 2236 return err; 2237 2238 qlcnic_83xx_config_buff_descriptors(adapter); 2239 adapter->ahw->msix_supported = !!qlcnic_use_msi_x; 2240 adapter->flags |= QLCNIC_ADAPTER_INITIALIZED; 2241 2242 dev_info(&adapter->pdev->dev, "HAL Version: %d\n", 2243 adapter->ahw->fw_hal_version); 2244 2245 return 0; 2246 } 2247 2248 #define IS_QLC_83XX_USED(a, b, c) (((1 << a->portnum) & b) || ((c >> 6) & 0x1)) 2249 static void qlcnic_83xx_clear_function_resources(struct qlcnic_adapter *adapter) 2250 { 2251 struct qlcnic_cmd_args cmd; 2252 u32 presence_mask, audit_mask; 2253 int status; 2254 2255 presence_mask = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE); 2256 audit_mask = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_AUDIT); 2257 2258 if (IS_QLC_83XX_USED(adapter, presence_mask, audit_mask)) { 2259 status = qlcnic_alloc_mbx_args(&cmd, adapter, 2260 QLCNIC_CMD_STOP_NIC_FUNC); 2261 if (status) 2262 return; 2263 2264 cmd.req.arg[1] = BIT_31; 2265 status = qlcnic_issue_cmd(adapter, &cmd); 2266 if (status) 2267 dev_err(&adapter->pdev->dev, 2268 "Failed to clean up the function resources\n"); 2269 qlcnic_free_mbx_args(&cmd); 2270 } 2271 } 2272 2273 static int qlcnic_83xx_get_fw_info(struct qlcnic_adapter *adapter) 2274 { 2275 struct qlcnic_hardware_context *ahw = adapter->ahw; 2276 struct pci_dev *pdev = adapter->pdev; 2277 struct qlc_83xx_fw_info *fw_info; 2278 int err = 0; 2279 2280 ahw->fw_info = kzalloc(sizeof(*fw_info), GFP_KERNEL); 2281 if (!ahw->fw_info) { 2282 err = -ENOMEM; 2283 } else { 2284 fw_info = ahw->fw_info; 2285 switch (pdev->device) { 2286 case PCI_DEVICE_ID_QLOGIC_QLE834X: 2287 strncpy(fw_info->fw_file_name, QLC_83XX_FW_FILE_NAME, 2288 QLC_FW_FILE_NAME_LEN); 2289 break; 2290 case PCI_DEVICE_ID_QLOGIC_QLE844X: 2291 strncpy(fw_info->fw_file_name, QLC_84XX_FW_FILE_NAME, 2292 QLC_FW_FILE_NAME_LEN); 2293 break; 2294 default: 2295 dev_err(&pdev->dev, "%s: Invalid device id\n", 2296 __func__); 2297 err = -EINVAL; 2298 break; 2299 } 2300 } 2301 2302 return err; 2303 } 2304 2305 static void qlcnic_83xx_init_rings(struct qlcnic_adapter *adapter) 2306 { 2307 u8 rx_cnt = QLCNIC_DEF_SDS_RINGS; 2308 u8 tx_cnt = QLCNIC_DEF_TX_RINGS; 2309 2310 adapter->max_tx_rings = QLCNIC_MAX_TX_RINGS; 2311 adapter->max_sds_rings = QLCNIC_MAX_SDS_RINGS; 2312 2313 if (!adapter->ahw->msix_supported) { 2314 rx_cnt = QLCNIC_SINGLE_RING; 2315 tx_cnt = QLCNIC_SINGLE_RING; 2316 } 2317 2318 /* compute and set drv sds rings */ 2319 qlcnic_set_tx_ring_count(adapter, tx_cnt); 2320 qlcnic_set_sds_ring_count(adapter, rx_cnt); 2321 } 2322 2323 int qlcnic_83xx_init(struct qlcnic_adapter *adapter, int pci_using_dac) 2324 { 2325 struct qlcnic_hardware_context *ahw = adapter->ahw; 2326 int err = 0; 2327 2328 adapter->rx_mac_learn = false; 2329 ahw->msix_supported = !!qlcnic_use_msi_x; 2330 2331 qlcnic_83xx_init_rings(adapter); 2332 2333 err = qlcnic_83xx_init_mailbox_work(adapter); 2334 if (err) 2335 goto exit; 2336 2337 if (qlcnic_sriov_vf_check(adapter)) { 2338 err = qlcnic_sriov_vf_init(adapter, pci_using_dac); 2339 if (err) 2340 goto detach_mbx; 2341 else 2342 return err; 2343 } 2344 2345 if (qlcnic_83xx_read_flash_descriptor_table(adapter) || 2346 qlcnic_83xx_read_flash_mfg_id(adapter)) { 2347 dev_err(&adapter->pdev->dev, "Failed reading flash mfg id\n"); 2348 err = -ENOTRECOVERABLE; 2349 goto detach_mbx; 2350 } 2351 2352 err = qlcnic_83xx_check_hw_status(adapter); 2353 if (err) 2354 goto detach_mbx; 2355 2356 err = qlcnic_83xx_get_fw_info(adapter); 2357 if (err) 2358 goto detach_mbx; 2359 2360 err = qlcnic_83xx_idc_init(adapter); 2361 if (err) 2362 goto detach_mbx; 2363 2364 err = qlcnic_setup_intr(adapter); 2365 if (err) { 2366 dev_err(&adapter->pdev->dev, "Failed to setup interrupt\n"); 2367 goto disable_intr; 2368 } 2369 2370 INIT_DELAYED_WORK(&adapter->idc_aen_work, qlcnic_83xx_idc_aen_work); 2371 2372 err = qlcnic_83xx_setup_mbx_intr(adapter); 2373 if (err) 2374 goto disable_mbx_intr; 2375 2376 qlcnic_83xx_clear_function_resources(adapter); 2377 qlcnic_dcb_enable(adapter->dcb); 2378 qlcnic_83xx_initialize_nic(adapter, 1); 2379 qlcnic_dcb_get_info(adapter->dcb); 2380 2381 /* Configure default, SR-IOV or Virtual NIC mode of operation */ 2382 err = qlcnic_83xx_configure_opmode(adapter); 2383 if (err) 2384 goto disable_mbx_intr; 2385 2386 2387 /* Perform operating mode specific initialization */ 2388 err = adapter->nic_ops->init_driver(adapter); 2389 if (err) 2390 goto disable_mbx_intr; 2391 2392 /* Periodically monitor device status */ 2393 qlcnic_83xx_idc_poll_dev_state(&adapter->fw_work.work); 2394 return 0; 2395 2396 disable_mbx_intr: 2397 qlcnic_83xx_free_mbx_intr(adapter); 2398 2399 disable_intr: 2400 qlcnic_teardown_intr(adapter); 2401 2402 detach_mbx: 2403 qlcnic_83xx_detach_mailbox_work(adapter); 2404 qlcnic_83xx_free_mailbox(ahw->mailbox); 2405 ahw->mailbox = NULL; 2406 exit: 2407 return err; 2408 } 2409 2410 void qlcnic_83xx_aer_stop_poll_work(struct qlcnic_adapter *adapter) 2411 { 2412 struct qlcnic_hardware_context *ahw = adapter->ahw; 2413 struct qlc_83xx_idc *idc = &ahw->idc; 2414 2415 clear_bit(QLC_83XX_MBX_READY, &idc->status); 2416 cancel_delayed_work_sync(&adapter->fw_work); 2417 2418 if (ahw->nic_mode == QLCNIC_VNIC_MODE) 2419 qlcnic_83xx_disable_vnic_mode(adapter, 1); 2420 2421 qlcnic_83xx_idc_detach_driver(adapter); 2422 qlcnic_83xx_initialize_nic(adapter, 0); 2423 2424 cancel_delayed_work_sync(&adapter->idc_aen_work); 2425 } 2426 2427 int qlcnic_83xx_aer_reset(struct qlcnic_adapter *adapter) 2428 { 2429 struct qlcnic_hardware_context *ahw = adapter->ahw; 2430 struct qlc_83xx_idc *idc = &ahw->idc; 2431 int ret = 0; 2432 u32 owner; 2433 2434 /* Mark the previous IDC state as NEED_RESET so 2435 * that state_entry() will perform the reattachment 2436 * and bringup the device 2437 */ 2438 idc->prev_state = QLC_83XX_IDC_DEV_NEED_RESET; 2439 owner = qlcnic_83xx_idc_find_reset_owner_id(adapter); 2440 if (ahw->pci_func == owner) { 2441 ret = qlcnic_83xx_restart_hw(adapter); 2442 if (ret < 0) 2443 return ret; 2444 qlcnic_83xx_idc_clear_registers(adapter, 0); 2445 } 2446 2447 ret = idc->state_entry(adapter); 2448 return ret; 2449 } 2450 2451 void qlcnic_83xx_aer_start_poll_work(struct qlcnic_adapter *adapter) 2452 { 2453 struct qlcnic_hardware_context *ahw = adapter->ahw; 2454 struct qlc_83xx_idc *idc = &ahw->idc; 2455 u32 owner; 2456 2457 idc->prev_state = QLC_83XX_IDC_DEV_READY; 2458 owner = qlcnic_83xx_idc_find_reset_owner_id(adapter); 2459 if (ahw->pci_func == owner) 2460 qlcnic_83xx_idc_enter_ready_state(adapter, 0); 2461 2462 qlcnic_schedule_work(adapter, qlcnic_83xx_idc_poll_dev_state, 0); 2463 } 2464