1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright (c) 2015 - 2022 Beijing WangXun Technology Co., Ltd. */ 3 4 #include <linux/types.h> 5 #include <linux/module.h> 6 #include <linux/pci.h> 7 #include <linux/netdevice.h> 8 #include <linux/string.h> 9 #include <linux/etherdevice.h> 10 #include <linux/phylink.h> 11 #include <net/ip.h> 12 #include <linux/if_vlan.h> 13 14 #include "../libwx/wx_type.h" 15 #include "../libwx/wx_lib.h" 16 #include "../libwx/wx_hw.h" 17 #include "txgbe_type.h" 18 #include "txgbe_hw.h" 19 #include "txgbe_phy.h" 20 #include "txgbe_irq.h" 21 #include "txgbe_ethtool.h" 22 23 char txgbe_driver_name[] = "txgbe"; 24 25 /* txgbe_pci_tbl - PCI Device ID Table 26 * 27 * Wildcard entries (PCI_ANY_ID) should come last 28 * Last entry must be all 0s 29 * 30 * { Vendor ID, Device ID, SubVendor ID, SubDevice ID, 31 * Class, Class Mask, private data (not used) } 32 */ 33 static const struct pci_device_id txgbe_pci_tbl[] = { 34 { PCI_VDEVICE(WANGXUN, TXGBE_DEV_ID_SP1000), 0}, 35 { PCI_VDEVICE(WANGXUN, TXGBE_DEV_ID_WX1820), 0}, 36 /* required last entry */ 37 { .device = 0 } 38 }; 39 40 #define DEFAULT_DEBUG_LEVEL_SHIFT 3 41 42 static void txgbe_check_minimum_link(struct wx *wx) 43 { 44 struct pci_dev *pdev; 45 46 pdev = wx->pdev; 47 pcie_print_link_status(pdev); 48 } 49 50 /** 51 * txgbe_enumerate_functions - Get the number of ports this device has 52 * @wx: wx structure 53 * 54 * This function enumerates the phsyical functions co-located on a single slot, 55 * in order to determine how many ports a device has. This is most useful in 56 * determining the required GT/s of PCIe bandwidth necessary for optimal 57 * performance. 58 **/ 59 static int txgbe_enumerate_functions(struct wx *wx) 60 { 61 struct pci_dev *entry, *pdev = wx->pdev; 62 int physfns = 0; 63 64 list_for_each_entry(entry, &pdev->bus->devices, bus_list) { 65 /* When the devices on the bus don't all match our device ID, 66 * we can't reliably determine the correct number of 67 * functions. This can occur if a function has been direct 68 * attached to a virtual machine using VT-d. 69 */ 70 if (entry->vendor != pdev->vendor || 71 entry->device != pdev->device) 72 return -EINVAL; 73 74 physfns++; 75 } 76 77 return physfns; 78 } 79 80 static void txgbe_up_complete(struct wx *wx) 81 { 82 struct net_device *netdev = wx->netdev; 83 84 txgbe_reinit_gpio_intr(wx); 85 wx_control_hw(wx, true); 86 wx_configure_vectors(wx); 87 88 /* make sure to complete pre-operations */ 89 smp_mb__before_atomic(); 90 wx_napi_enable_all(wx); 91 92 phylink_start(wx->phylink); 93 94 /* clear any pending interrupts, may auto mask */ 95 rd32(wx, WX_PX_IC(0)); 96 rd32(wx, WX_PX_IC(1)); 97 rd32(wx, WX_PX_MISC_IC); 98 txgbe_irq_enable(wx, true); 99 100 /* enable transmits */ 101 netif_tx_start_all_queues(netdev); 102 } 103 104 static void txgbe_reset(struct wx *wx) 105 { 106 struct net_device *netdev = wx->netdev; 107 u8 old_addr[ETH_ALEN]; 108 int err; 109 110 err = txgbe_reset_hw(wx); 111 if (err != 0) 112 wx_err(wx, "Hardware Error: %d\n", err); 113 114 wx_start_hw(wx); 115 /* do not flush user set addresses */ 116 memcpy(old_addr, &wx->mac_table[0].addr, netdev->addr_len); 117 wx_flush_sw_mac_table(wx); 118 wx_mac_set_default_filter(wx, old_addr); 119 } 120 121 static void txgbe_disable_device(struct wx *wx) 122 { 123 struct net_device *netdev = wx->netdev; 124 u32 i; 125 126 wx_disable_pcie_master(wx); 127 /* disable receives */ 128 wx_disable_rx(wx); 129 130 /* disable all enabled rx queues */ 131 for (i = 0; i < wx->num_rx_queues; i++) 132 /* this call also flushes the previous write */ 133 wx_disable_rx_queue(wx, wx->rx_ring[i]); 134 135 netif_tx_stop_all_queues(netdev); 136 netif_tx_disable(netdev); 137 138 wx_irq_disable(wx); 139 wx_napi_disable_all(wx); 140 141 if (wx->bus.func < 2) 142 wr32m(wx, TXGBE_MIS_PRB_CTL, TXGBE_MIS_PRB_CTL_LAN_UP(wx->bus.func), 0); 143 else 144 wx_err(wx, "%s: invalid bus lan id %d\n", 145 __func__, wx->bus.func); 146 147 if (!(((wx->subsystem_device_id & WX_NCSI_MASK) == WX_NCSI_SUP) || 148 ((wx->subsystem_device_id & WX_WOL_MASK) == WX_WOL_SUP))) { 149 /* disable mac transmiter */ 150 wr32m(wx, WX_MAC_TX_CFG, WX_MAC_TX_CFG_TE, 0); 151 } 152 153 /* disable transmits in the hardware now that interrupts are off */ 154 for (i = 0; i < wx->num_tx_queues; i++) { 155 u8 reg_idx = wx->tx_ring[i]->reg_idx; 156 157 wr32(wx, WX_PX_TR_CFG(reg_idx), WX_PX_TR_CFG_SWFLSH); 158 } 159 160 /* Disable the Tx DMA engine */ 161 wr32m(wx, WX_TDM_CTL, WX_TDM_CTL_TE, 0); 162 163 wx_update_stats(wx); 164 } 165 166 void txgbe_down(struct wx *wx) 167 { 168 txgbe_disable_device(wx); 169 txgbe_reset(wx); 170 phylink_stop(wx->phylink); 171 172 wx_clean_all_tx_rings(wx); 173 wx_clean_all_rx_rings(wx); 174 } 175 176 void txgbe_up(struct wx *wx) 177 { 178 wx_configure(wx); 179 txgbe_up_complete(wx); 180 } 181 182 /** 183 * txgbe_init_type_code - Initialize the shared code 184 * @wx: pointer to hardware structure 185 **/ 186 static void txgbe_init_type_code(struct wx *wx) 187 { 188 u8 device_type = wx->subsystem_device_id & 0xF0; 189 190 switch (wx->device_id) { 191 case TXGBE_DEV_ID_SP1000: 192 case TXGBE_DEV_ID_WX1820: 193 wx->mac.type = wx_mac_sp; 194 break; 195 default: 196 wx->mac.type = wx_mac_unknown; 197 break; 198 } 199 200 switch (device_type) { 201 case TXGBE_ID_SFP: 202 wx->media_type = sp_media_fiber; 203 break; 204 case TXGBE_ID_XAUI: 205 case TXGBE_ID_SGMII: 206 wx->media_type = sp_media_copper; 207 break; 208 case TXGBE_ID_KR_KX_KX4: 209 case TXGBE_ID_MAC_XAUI: 210 case TXGBE_ID_MAC_SGMII: 211 wx->media_type = sp_media_backplane; 212 break; 213 case TXGBE_ID_SFI_XAUI: 214 if (wx->bus.func == 0) 215 wx->media_type = sp_media_fiber; 216 else 217 wx->media_type = sp_media_copper; 218 break; 219 default: 220 wx->media_type = sp_media_unknown; 221 break; 222 } 223 } 224 225 /** 226 * txgbe_sw_init - Initialize general software structures (struct wx) 227 * @wx: board private structure to initialize 228 **/ 229 static int txgbe_sw_init(struct wx *wx) 230 { 231 u16 msix_count = 0; 232 int err; 233 234 wx->mac.num_rar_entries = TXGBE_SP_RAR_ENTRIES; 235 wx->mac.max_tx_queues = TXGBE_SP_MAX_TX_QUEUES; 236 wx->mac.max_rx_queues = TXGBE_SP_MAX_RX_QUEUES; 237 wx->mac.mcft_size = TXGBE_SP_MC_TBL_SIZE; 238 wx->mac.vft_size = TXGBE_SP_VFT_TBL_SIZE; 239 wx->mac.rx_pb_size = TXGBE_SP_RX_PB_SIZE; 240 wx->mac.tx_pb_size = TXGBE_SP_TDB_PB_SZ; 241 242 /* PCI config space info */ 243 err = wx_sw_init(wx); 244 if (err < 0) 245 return err; 246 247 txgbe_init_type_code(wx); 248 249 /* Set common capability flags and settings */ 250 wx->max_q_vectors = TXGBE_MAX_MSIX_VECTORS; 251 err = wx_get_pcie_msix_counts(wx, &msix_count, TXGBE_MAX_MSIX_VECTORS); 252 if (err) 253 wx_err(wx, "Do not support MSI-X\n"); 254 wx->mac.max_msix_vectors = msix_count; 255 256 wx->ring_feature[RING_F_RSS].limit = min_t(int, TXGBE_MAX_RSS_INDICES, 257 num_online_cpus()); 258 wx->rss_enabled = true; 259 260 /* enable itr by default in dynamic mode */ 261 wx->rx_itr_setting = 1; 262 wx->tx_itr_setting = 1; 263 264 /* set default ring sizes */ 265 wx->tx_ring_count = TXGBE_DEFAULT_TXD; 266 wx->rx_ring_count = TXGBE_DEFAULT_RXD; 267 268 /* set default work limits */ 269 wx->tx_work_limit = TXGBE_DEFAULT_TX_WORK; 270 wx->rx_work_limit = TXGBE_DEFAULT_RX_WORK; 271 272 return 0; 273 } 274 275 /** 276 * txgbe_open - Called when a network interface is made active 277 * @netdev: network interface device structure 278 * 279 * Returns 0 on success, negative value on failure 280 * 281 * The open entry point is called when a network interface is made 282 * active by the system (IFF_UP). 283 **/ 284 static int txgbe_open(struct net_device *netdev) 285 { 286 struct wx *wx = netdev_priv(netdev); 287 int err; 288 289 err = wx_setup_resources(wx); 290 if (err) 291 goto err_reset; 292 293 wx_configure(wx); 294 295 err = txgbe_request_irq(wx); 296 if (err) 297 goto err_free_isb; 298 299 /* Notify the stack of the actual queue counts. */ 300 err = netif_set_real_num_tx_queues(netdev, wx->num_tx_queues); 301 if (err) 302 goto err_free_irq; 303 304 err = netif_set_real_num_rx_queues(netdev, wx->num_rx_queues); 305 if (err) 306 goto err_free_irq; 307 308 txgbe_up_complete(wx); 309 310 return 0; 311 312 err_free_irq: 313 wx_free_irq(wx); 314 err_free_isb: 315 wx_free_isb_resources(wx); 316 err_reset: 317 txgbe_reset(wx); 318 319 return err; 320 } 321 322 /** 323 * txgbe_close_suspend - actions necessary to both suspend and close flows 324 * @wx: the private wx struct 325 * 326 * This function should contain the necessary work common to both suspending 327 * and closing of the device. 328 */ 329 static void txgbe_close_suspend(struct wx *wx) 330 { 331 txgbe_disable_device(wx); 332 wx_free_resources(wx); 333 } 334 335 /** 336 * txgbe_close - Disables a network interface 337 * @netdev: network interface device structure 338 * 339 * Returns 0, this is not allowed to fail 340 * 341 * The close entry point is called when an interface is de-activated 342 * by the OS. The hardware is still under the drivers control, but 343 * needs to be disabled. A global MAC reset is issued to stop the 344 * hardware, and all transmit and receive resources are freed. 345 **/ 346 static int txgbe_close(struct net_device *netdev) 347 { 348 struct wx *wx = netdev_priv(netdev); 349 350 txgbe_down(wx); 351 wx_free_irq(wx); 352 wx_free_resources(wx); 353 wx_control_hw(wx, false); 354 355 return 0; 356 } 357 358 static void txgbe_dev_shutdown(struct pci_dev *pdev) 359 { 360 struct wx *wx = pci_get_drvdata(pdev); 361 struct net_device *netdev; 362 363 netdev = wx->netdev; 364 netif_device_detach(netdev); 365 366 rtnl_lock(); 367 if (netif_running(netdev)) 368 txgbe_close_suspend(wx); 369 rtnl_unlock(); 370 371 wx_control_hw(wx, false); 372 373 pci_disable_device(pdev); 374 } 375 376 static void txgbe_shutdown(struct pci_dev *pdev) 377 { 378 txgbe_dev_shutdown(pdev); 379 380 if (system_state == SYSTEM_POWER_OFF) { 381 pci_wake_from_d3(pdev, false); 382 pci_set_power_state(pdev, PCI_D3hot); 383 } 384 } 385 386 /** 387 * txgbe_setup_tc - routine to configure net_device for multiple traffic 388 * classes. 389 * 390 * @dev: net device to configure 391 * @tc: number of traffic classes to enable 392 */ 393 int txgbe_setup_tc(struct net_device *dev, u8 tc) 394 { 395 struct wx *wx = netdev_priv(dev); 396 struct txgbe *txgbe = wx->priv; 397 398 /* Hardware has to reinitialize queues and interrupts to 399 * match packet buffer alignment. Unfortunately, the 400 * hardware is not flexible enough to do this dynamically. 401 */ 402 if (netif_running(dev)) 403 txgbe_close(dev); 404 else 405 txgbe_reset(wx); 406 407 txgbe_free_misc_irq(txgbe); 408 wx_clear_interrupt_scheme(wx); 409 410 if (tc) 411 netdev_set_num_tc(dev, tc); 412 else 413 netdev_reset_tc(dev); 414 415 wx_init_interrupt_scheme(wx); 416 txgbe_setup_misc_irq(txgbe); 417 418 if (netif_running(dev)) 419 txgbe_open(dev); 420 421 return 0; 422 } 423 424 static const struct net_device_ops txgbe_netdev_ops = { 425 .ndo_open = txgbe_open, 426 .ndo_stop = txgbe_close, 427 .ndo_change_mtu = wx_change_mtu, 428 .ndo_start_xmit = wx_xmit_frame, 429 .ndo_set_rx_mode = wx_set_rx_mode, 430 .ndo_set_features = wx_set_features, 431 .ndo_validate_addr = eth_validate_addr, 432 .ndo_set_mac_address = wx_set_mac, 433 .ndo_get_stats64 = wx_get_stats64, 434 .ndo_vlan_rx_add_vid = wx_vlan_rx_add_vid, 435 .ndo_vlan_rx_kill_vid = wx_vlan_rx_kill_vid, 436 }; 437 438 /** 439 * txgbe_probe - Device Initialization Routine 440 * @pdev: PCI device information struct 441 * @ent: entry in txgbe_pci_tbl 442 * 443 * Returns 0 on success, negative on failure 444 * 445 * txgbe_probe initializes an adapter identified by a pci_dev structure. 446 * The OS initialization, configuring of the wx private structure, 447 * and a hardware reset occur. 448 **/ 449 static int txgbe_probe(struct pci_dev *pdev, 450 const struct pci_device_id __always_unused *ent) 451 { 452 struct net_device *netdev; 453 int err, expected_gts; 454 struct wx *wx = NULL; 455 struct txgbe *txgbe; 456 457 u16 eeprom_verh = 0, eeprom_verl = 0, offset = 0; 458 u16 eeprom_cfg_blkh = 0, eeprom_cfg_blkl = 0; 459 u16 build = 0, major = 0, patch = 0; 460 u32 etrack_id = 0; 461 462 err = pci_enable_device_mem(pdev); 463 if (err) 464 return err; 465 466 err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); 467 if (err) { 468 dev_err(&pdev->dev, 469 "No usable DMA configuration, aborting\n"); 470 goto err_pci_disable_dev; 471 } 472 473 err = pci_request_selected_regions(pdev, 474 pci_select_bars(pdev, IORESOURCE_MEM), 475 txgbe_driver_name); 476 if (err) { 477 dev_err(&pdev->dev, 478 "pci_request_selected_regions failed 0x%x\n", err); 479 goto err_pci_disable_dev; 480 } 481 482 pci_set_master(pdev); 483 484 netdev = devm_alloc_etherdev_mqs(&pdev->dev, 485 sizeof(struct wx), 486 TXGBE_MAX_TX_QUEUES, 487 TXGBE_MAX_RX_QUEUES); 488 if (!netdev) { 489 err = -ENOMEM; 490 goto err_pci_release_regions; 491 } 492 493 SET_NETDEV_DEV(netdev, &pdev->dev); 494 495 wx = netdev_priv(netdev); 496 wx->netdev = netdev; 497 wx->pdev = pdev; 498 499 wx->msg_enable = (1 << DEFAULT_DEBUG_LEVEL_SHIFT) - 1; 500 501 wx->hw_addr = devm_ioremap(&pdev->dev, 502 pci_resource_start(pdev, 0), 503 pci_resource_len(pdev, 0)); 504 if (!wx->hw_addr) { 505 err = -EIO; 506 goto err_pci_release_regions; 507 } 508 509 wx->driver_name = txgbe_driver_name; 510 txgbe_set_ethtool_ops(netdev); 511 netdev->netdev_ops = &txgbe_netdev_ops; 512 513 /* setup the private structure */ 514 err = txgbe_sw_init(wx); 515 if (err) 516 goto err_free_mac_table; 517 518 /* check if flash load is done after hw power up */ 519 err = wx_check_flash_load(wx, TXGBE_SPI_ILDR_STATUS_PERST); 520 if (err) 521 goto err_free_mac_table; 522 err = wx_check_flash_load(wx, TXGBE_SPI_ILDR_STATUS_PWRRST); 523 if (err) 524 goto err_free_mac_table; 525 526 err = wx_mng_present(wx); 527 if (err) { 528 dev_err(&pdev->dev, "Management capability is not present\n"); 529 goto err_free_mac_table; 530 } 531 532 err = txgbe_reset_hw(wx); 533 if (err) { 534 dev_err(&pdev->dev, "HW Init failed: %d\n", err); 535 goto err_free_mac_table; 536 } 537 538 netdev->features = NETIF_F_SG | 539 NETIF_F_TSO | 540 NETIF_F_TSO6 | 541 NETIF_F_RXHASH | 542 NETIF_F_RXCSUM | 543 NETIF_F_HW_CSUM; 544 545 netdev->gso_partial_features = NETIF_F_GSO_ENCAP_ALL; 546 netdev->features |= netdev->gso_partial_features; 547 netdev->features |= NETIF_F_SCTP_CRC; 548 netdev->vlan_features |= netdev->features | NETIF_F_TSO_MANGLEID; 549 netdev->hw_enc_features |= netdev->vlan_features; 550 netdev->features |= NETIF_F_VLAN_FEATURES; 551 /* copy netdev features into list of user selectable features */ 552 netdev->hw_features |= netdev->features | NETIF_F_RXALL; 553 netdev->hw_features |= NETIF_F_NTUPLE | NETIF_F_HW_TC; 554 netdev->features |= NETIF_F_HIGHDMA; 555 netdev->hw_features |= NETIF_F_GRO; 556 netdev->features |= NETIF_F_GRO; 557 558 netdev->priv_flags |= IFF_UNICAST_FLT; 559 netdev->priv_flags |= IFF_SUPP_NOFCS; 560 netdev->priv_flags |= IFF_LIVE_ADDR_CHANGE; 561 562 netdev->min_mtu = ETH_MIN_MTU; 563 netdev->max_mtu = WX_MAX_JUMBO_FRAME_SIZE - 564 (ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN); 565 566 /* make sure the EEPROM is good */ 567 err = txgbe_validate_eeprom_checksum(wx, NULL); 568 if (err != 0) { 569 dev_err(&pdev->dev, "The EEPROM Checksum Is Not Valid\n"); 570 wr32(wx, WX_MIS_RST, WX_MIS_RST_SW_RST); 571 err = -EIO; 572 goto err_free_mac_table; 573 } 574 575 eth_hw_addr_set(netdev, wx->mac.perm_addr); 576 wx_mac_set_default_filter(wx, wx->mac.perm_addr); 577 578 err = wx_init_interrupt_scheme(wx); 579 if (err) 580 goto err_free_mac_table; 581 582 /* Save off EEPROM version number and Option Rom version which 583 * together make a unique identify for the eeprom 584 */ 585 wx_read_ee_hostif(wx, 586 wx->eeprom.sw_region_offset + TXGBE_EEPROM_VERSION_H, 587 &eeprom_verh); 588 wx_read_ee_hostif(wx, 589 wx->eeprom.sw_region_offset + TXGBE_EEPROM_VERSION_L, 590 &eeprom_verl); 591 etrack_id = (eeprom_verh << 16) | eeprom_verl; 592 593 wx_read_ee_hostif(wx, 594 wx->eeprom.sw_region_offset + TXGBE_ISCSI_BOOT_CONFIG, 595 &offset); 596 597 /* Make sure offset to SCSI block is valid */ 598 if (!(offset == 0x0) && !(offset == 0xffff)) { 599 wx_read_ee_hostif(wx, offset + 0x84, &eeprom_cfg_blkh); 600 wx_read_ee_hostif(wx, offset + 0x83, &eeprom_cfg_blkl); 601 602 /* Only display Option Rom if exist */ 603 if (eeprom_cfg_blkl && eeprom_cfg_blkh) { 604 major = eeprom_cfg_blkl >> 8; 605 build = (eeprom_cfg_blkl << 8) | (eeprom_cfg_blkh >> 8); 606 patch = eeprom_cfg_blkh & 0x00ff; 607 608 snprintf(wx->eeprom_id, sizeof(wx->eeprom_id), 609 "0x%08x, %d.%d.%d", etrack_id, major, build, 610 patch); 611 } else { 612 snprintf(wx->eeprom_id, sizeof(wx->eeprom_id), 613 "0x%08x", etrack_id); 614 } 615 } else { 616 snprintf(wx->eeprom_id, sizeof(wx->eeprom_id), 617 "0x%08x", etrack_id); 618 } 619 620 if (etrack_id < 0x20010) 621 dev_warn(&pdev->dev, "Please upgrade the firmware to 0x20010 or above.\n"); 622 623 txgbe = devm_kzalloc(&pdev->dev, sizeof(*txgbe), GFP_KERNEL); 624 if (!txgbe) { 625 err = -ENOMEM; 626 goto err_release_hw; 627 } 628 629 txgbe->wx = wx; 630 wx->priv = txgbe; 631 632 err = txgbe_setup_misc_irq(txgbe); 633 if (err) 634 goto err_release_hw; 635 636 err = txgbe_init_phy(txgbe); 637 if (err) 638 goto err_free_misc_irq; 639 640 err = register_netdev(netdev); 641 if (err) 642 goto err_remove_phy; 643 644 pci_set_drvdata(pdev, wx); 645 646 netif_tx_stop_all_queues(netdev); 647 648 /* calculate the expected PCIe bandwidth required for optimal 649 * performance. Note that some older parts will never have enough 650 * bandwidth due to being older generation PCIe parts. We clamp these 651 * parts to ensure that no warning is displayed, as this could confuse 652 * users otherwise. 653 */ 654 expected_gts = txgbe_enumerate_functions(wx) * 10; 655 656 /* don't check link if we failed to enumerate functions */ 657 if (expected_gts > 0) 658 txgbe_check_minimum_link(wx); 659 else 660 dev_warn(&pdev->dev, "Failed to enumerate PF devices.\n"); 661 662 return 0; 663 664 err_remove_phy: 665 txgbe_remove_phy(txgbe); 666 err_free_misc_irq: 667 txgbe_free_misc_irq(txgbe); 668 err_release_hw: 669 wx_clear_interrupt_scheme(wx); 670 wx_control_hw(wx, false); 671 err_free_mac_table: 672 kfree(wx->mac_table); 673 err_pci_release_regions: 674 pci_release_selected_regions(pdev, 675 pci_select_bars(pdev, IORESOURCE_MEM)); 676 err_pci_disable_dev: 677 pci_disable_device(pdev); 678 return err; 679 } 680 681 /** 682 * txgbe_remove - Device Removal Routine 683 * @pdev: PCI device information struct 684 * 685 * txgbe_remove is called by the PCI subsystem to alert the driver 686 * that it should release a PCI device. The could be caused by a 687 * Hot-Plug event, or because the driver is going to be removed from 688 * memory. 689 **/ 690 static void txgbe_remove(struct pci_dev *pdev) 691 { 692 struct wx *wx = pci_get_drvdata(pdev); 693 struct txgbe *txgbe = wx->priv; 694 struct net_device *netdev; 695 696 netdev = wx->netdev; 697 unregister_netdev(netdev); 698 699 txgbe_remove_phy(txgbe); 700 txgbe_free_misc_irq(txgbe); 701 702 pci_release_selected_regions(pdev, 703 pci_select_bars(pdev, IORESOURCE_MEM)); 704 705 kfree(wx->rss_key); 706 kfree(wx->mac_table); 707 wx_clear_interrupt_scheme(wx); 708 709 pci_disable_device(pdev); 710 } 711 712 static struct pci_driver txgbe_driver = { 713 .name = txgbe_driver_name, 714 .id_table = txgbe_pci_tbl, 715 .probe = txgbe_probe, 716 .remove = txgbe_remove, 717 .shutdown = txgbe_shutdown, 718 }; 719 720 module_pci_driver(txgbe_driver); 721 722 MODULE_DEVICE_TABLE(pci, txgbe_pci_tbl); 723 MODULE_AUTHOR("Beijing WangXun Technology Co., Ltd, <software@trustnetic.com>"); 724 MODULE_DESCRIPTION("WangXun(R) 10 Gigabit PCI Express Network Driver"); 725 MODULE_LICENSE("GPL"); 726