1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright (c) 2019 - 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 <net/ip.h> 11 #include <linux/phy.h> 12 #include <linux/if_vlan.h> 13 14 #include "../libwx/wx_type.h" 15 #include "../libwx/wx_hw.h" 16 #include "../libwx/wx_lib.h" 17 #include "ngbe_type.h" 18 #include "ngbe_mdio.h" 19 #include "ngbe_hw.h" 20 #include "ngbe_ethtool.h" 21 22 char ngbe_driver_name[] = "ngbe"; 23 24 /* ngbe_pci_tbl - PCI Device ID Table 25 * 26 * { Vendor ID, Device ID, SubVendor ID, SubDevice ID, 27 * Class, Class Mask, private data (not used) } 28 */ 29 static const struct pci_device_id ngbe_pci_tbl[] = { 30 { PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860AL_W), 0}, 31 { PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860A2), 0}, 32 { PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860A2S), 0}, 33 { PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860A4), 0}, 34 { PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860A4S), 0}, 35 { PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860AL2), 0}, 36 { PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860AL2S), 0}, 37 { PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860AL4), 0}, 38 { PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860AL4S), 0}, 39 { PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860LC), 0}, 40 { PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860A1), 0}, 41 { PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860A1L), 0}, 42 /* required last entry */ 43 { .device = 0 } 44 }; 45 46 /** 47 * ngbe_init_type_code - Initialize the shared code 48 * @wx: pointer to hardware structure 49 **/ 50 static void ngbe_init_type_code(struct wx *wx) 51 { 52 int wol_mask = 0, ncsi_mask = 0; 53 u16 type_mask = 0, val; 54 55 wx->mac.type = wx_mac_em; 56 type_mask = (u16)(wx->subsystem_device_id & NGBE_OEM_MASK); 57 ncsi_mask = wx->subsystem_device_id & NGBE_NCSI_MASK; 58 wol_mask = wx->subsystem_device_id & NGBE_WOL_MASK; 59 60 val = rd32(wx, WX_CFG_PORT_ST); 61 wx->mac_type = (val & BIT(7)) >> 7 ? 62 em_mac_type_rgmii : 63 em_mac_type_mdi; 64 65 wx->wol_enabled = (wol_mask == NGBE_WOL_SUP) ? 1 : 0; 66 wx->ncsi_enabled = (ncsi_mask == NGBE_NCSI_MASK || 67 type_mask == NGBE_SUBID_OCP_CARD) ? 1 : 0; 68 69 switch (type_mask) { 70 case NGBE_SUBID_LY_YT8521S_SFP: 71 case NGBE_SUBID_LY_M88E1512_SFP: 72 case NGBE_SUBID_YT8521S_SFP_GPIO: 73 case NGBE_SUBID_INTERNAL_YT8521S_SFP_GPIO: 74 wx->gpio_ctrl = 1; 75 break; 76 default: 77 wx->gpio_ctrl = 0; 78 break; 79 } 80 } 81 82 /** 83 * ngbe_init_rss_key - Initialize wx RSS key 84 * @wx: device handle 85 * 86 * Allocates and initializes the RSS key if it is not allocated. 87 **/ 88 static inline int ngbe_init_rss_key(struct wx *wx) 89 { 90 u32 *rss_key; 91 92 if (!wx->rss_key) { 93 rss_key = kzalloc(WX_RSS_KEY_SIZE, GFP_KERNEL); 94 if (unlikely(!rss_key)) 95 return -ENOMEM; 96 97 netdev_rss_key_fill(rss_key, WX_RSS_KEY_SIZE); 98 wx->rss_key = rss_key; 99 } 100 101 return 0; 102 } 103 104 /** 105 * ngbe_sw_init - Initialize general software structures 106 * @wx: board private structure to initialize 107 **/ 108 static int ngbe_sw_init(struct wx *wx) 109 { 110 struct pci_dev *pdev = wx->pdev; 111 u16 msix_count = 0; 112 int err = 0; 113 114 wx->mac.num_rar_entries = NGBE_RAR_ENTRIES; 115 wx->mac.max_rx_queues = NGBE_MAX_RX_QUEUES; 116 wx->mac.max_tx_queues = NGBE_MAX_TX_QUEUES; 117 wx->mac.mcft_size = NGBE_MC_TBL_SIZE; 118 wx->mac.vft_size = NGBE_SP_VFT_TBL_SIZE; 119 wx->mac.rx_pb_size = NGBE_RX_PB_SIZE; 120 wx->mac.tx_pb_size = NGBE_TDB_PB_SZ; 121 122 /* PCI config space info */ 123 err = wx_sw_init(wx); 124 if (err < 0) { 125 wx_err(wx, "read of internal subsystem device id failed\n"); 126 return err; 127 } 128 129 /* mac type, phy type , oem type */ 130 ngbe_init_type_code(wx); 131 132 /* Set common capability flags and settings */ 133 wx->max_q_vectors = NGBE_MAX_MSIX_VECTORS; 134 err = wx_get_pcie_msix_counts(wx, &msix_count, NGBE_MAX_MSIX_VECTORS); 135 if (err) 136 dev_err(&pdev->dev, "Do not support MSI-X\n"); 137 wx->mac.max_msix_vectors = msix_count; 138 139 if (ngbe_init_rss_key(wx)) 140 return -ENOMEM; 141 142 /* enable itr by default in dynamic mode */ 143 wx->rx_itr_setting = 1; 144 wx->tx_itr_setting = 1; 145 146 /* set default ring sizes */ 147 wx->tx_ring_count = NGBE_DEFAULT_TXD; 148 wx->rx_ring_count = NGBE_DEFAULT_RXD; 149 150 /* set default work limits */ 151 wx->tx_work_limit = NGBE_DEFAULT_TX_WORK; 152 wx->rx_work_limit = NGBE_DEFAULT_RX_WORK; 153 154 return 0; 155 } 156 157 /** 158 * ngbe_irq_enable - Enable default interrupt generation settings 159 * @wx: board private structure 160 * @queues: enable all queues interrupts 161 **/ 162 static void ngbe_irq_enable(struct wx *wx, bool queues) 163 { 164 u32 mask; 165 166 /* enable misc interrupt */ 167 mask = NGBE_PX_MISC_IEN_MASK; 168 169 wr32(wx, WX_GPIO_DDR, WX_GPIO_DDR_0); 170 wr32(wx, WX_GPIO_INTEN, WX_GPIO_INTEN_0 | WX_GPIO_INTEN_1); 171 wr32(wx, WX_GPIO_INTTYPE_LEVEL, 0x0); 172 wr32(wx, WX_GPIO_POLARITY, wx->gpio_ctrl ? 0 : 0x3); 173 174 wr32(wx, WX_PX_MISC_IEN, mask); 175 176 /* mask interrupt */ 177 if (queues) 178 wx_intr_enable(wx, NGBE_INTR_ALL); 179 else 180 wx_intr_enable(wx, NGBE_INTR_MISC(wx)); 181 } 182 183 /** 184 * ngbe_intr - msi/legacy mode Interrupt Handler 185 * @irq: interrupt number 186 * @data: pointer to a network interface device structure 187 **/ 188 static irqreturn_t ngbe_intr(int __always_unused irq, void *data) 189 { 190 struct wx_q_vector *q_vector; 191 struct wx *wx = data; 192 struct pci_dev *pdev; 193 u32 eicr; 194 195 q_vector = wx->q_vector[0]; 196 pdev = wx->pdev; 197 198 eicr = wx_misc_isb(wx, WX_ISB_VEC0); 199 if (!eicr) { 200 /* shared interrupt alert! 201 * the interrupt that we masked before the EICR read. 202 */ 203 if (netif_running(wx->netdev)) 204 ngbe_irq_enable(wx, true); 205 return IRQ_NONE; /* Not our interrupt */ 206 } 207 wx->isb_mem[WX_ISB_VEC0] = 0; 208 if (!(pdev->msi_enabled)) 209 wr32(wx, WX_PX_INTA, 1); 210 211 wx->isb_mem[WX_ISB_MISC] = 0; 212 /* would disable interrupts here but it is auto disabled */ 213 napi_schedule_irqoff(&q_vector->napi); 214 215 if (netif_running(wx->netdev)) 216 ngbe_irq_enable(wx, false); 217 218 return IRQ_HANDLED; 219 } 220 221 static irqreturn_t ngbe_msix_other(int __always_unused irq, void *data) 222 { 223 struct wx *wx = data; 224 225 /* re-enable the original interrupt state, no lsc, no queues */ 226 if (netif_running(wx->netdev)) 227 ngbe_irq_enable(wx, false); 228 229 return IRQ_HANDLED; 230 } 231 232 /** 233 * ngbe_request_msix_irqs - Initialize MSI-X interrupts 234 * @wx: board private structure 235 * 236 * ngbe_request_msix_irqs allocates MSI-X vectors and requests 237 * interrupts from the kernel. 238 **/ 239 static int ngbe_request_msix_irqs(struct wx *wx) 240 { 241 struct net_device *netdev = wx->netdev; 242 int vector, err; 243 244 for (vector = 0; vector < wx->num_q_vectors; vector++) { 245 struct wx_q_vector *q_vector = wx->q_vector[vector]; 246 struct msix_entry *entry = &wx->msix_entries[vector]; 247 248 if (q_vector->tx.ring && q_vector->rx.ring) 249 snprintf(q_vector->name, sizeof(q_vector->name) - 1, 250 "%s-TxRx-%d", netdev->name, entry->entry); 251 else 252 /* skip this unused q_vector */ 253 continue; 254 255 err = request_irq(entry->vector, wx_msix_clean_rings, 0, 256 q_vector->name, q_vector); 257 if (err) { 258 wx_err(wx, "request_irq failed for MSIX interrupt %s Error: %d\n", 259 q_vector->name, err); 260 goto free_queue_irqs; 261 } 262 } 263 264 err = request_irq(wx->msix_entries[vector].vector, 265 ngbe_msix_other, 0, netdev->name, wx); 266 267 if (err) { 268 wx_err(wx, "request_irq for msix_other failed: %d\n", err); 269 goto free_queue_irqs; 270 } 271 272 return 0; 273 274 free_queue_irqs: 275 while (vector) { 276 vector--; 277 free_irq(wx->msix_entries[vector].vector, 278 wx->q_vector[vector]); 279 } 280 wx_reset_interrupt_capability(wx); 281 return err; 282 } 283 284 /** 285 * ngbe_request_irq - initialize interrupts 286 * @wx: board private structure 287 * 288 * Attempts to configure interrupts using the best available 289 * capabilities of the hardware and kernel. 290 **/ 291 static int ngbe_request_irq(struct wx *wx) 292 { 293 struct net_device *netdev = wx->netdev; 294 struct pci_dev *pdev = wx->pdev; 295 int err; 296 297 if (pdev->msix_enabled) 298 err = ngbe_request_msix_irqs(wx); 299 else if (pdev->msi_enabled) 300 err = request_irq(pdev->irq, ngbe_intr, 0, 301 netdev->name, wx); 302 else 303 err = request_irq(pdev->irq, ngbe_intr, IRQF_SHARED, 304 netdev->name, wx); 305 306 if (err) 307 wx_err(wx, "request_irq failed, Error %d\n", err); 308 309 return err; 310 } 311 312 static void ngbe_disable_device(struct wx *wx) 313 { 314 struct net_device *netdev = wx->netdev; 315 u32 i; 316 317 /* disable all enabled rx queues */ 318 for (i = 0; i < wx->num_rx_queues; i++) 319 /* this call also flushes the previous write */ 320 wx_disable_rx_queue(wx, wx->rx_ring[i]); 321 /* disable receives */ 322 wx_disable_rx(wx); 323 wx_napi_disable_all(wx); 324 netif_tx_stop_all_queues(netdev); 325 netif_tx_disable(netdev); 326 if (wx->gpio_ctrl) 327 ngbe_sfp_modules_txrx_powerctl(wx, false); 328 wx_irq_disable(wx); 329 /* disable transmits in the hardware now that interrupts are off */ 330 for (i = 0; i < wx->num_tx_queues; i++) { 331 u8 reg_idx = wx->tx_ring[i]->reg_idx; 332 333 wr32(wx, WX_PX_TR_CFG(reg_idx), WX_PX_TR_CFG_SWFLSH); 334 } 335 } 336 337 static void ngbe_down(struct wx *wx) 338 { 339 phy_stop(wx->phydev); 340 ngbe_disable_device(wx); 341 wx_clean_all_tx_rings(wx); 342 wx_clean_all_rx_rings(wx); 343 } 344 345 static void ngbe_up(struct wx *wx) 346 { 347 wx_configure_vectors(wx); 348 349 /* make sure to complete pre-operations */ 350 smp_mb__before_atomic(); 351 wx_napi_enable_all(wx); 352 /* enable transmits */ 353 netif_tx_start_all_queues(wx->netdev); 354 355 /* clear any pending interrupts, may auto mask */ 356 rd32(wx, WX_PX_IC(0)); 357 rd32(wx, WX_PX_MISC_IC); 358 ngbe_irq_enable(wx, true); 359 if (wx->gpio_ctrl) 360 ngbe_sfp_modules_txrx_powerctl(wx, true); 361 362 phy_start(wx->phydev); 363 } 364 365 /** 366 * ngbe_open - Called when a network interface is made active 367 * @netdev: network interface device structure 368 * 369 * Returns 0 on success, negative value on failure 370 * 371 * The open entry point is called when a network interface is made 372 * active by the system (IFF_UP). 373 **/ 374 static int ngbe_open(struct net_device *netdev) 375 { 376 struct wx *wx = netdev_priv(netdev); 377 int err; 378 379 wx_control_hw(wx, true); 380 381 err = wx_setup_resources(wx); 382 if (err) 383 return err; 384 385 wx_configure(wx); 386 387 err = ngbe_request_irq(wx); 388 if (err) 389 goto err_free_resources; 390 391 err = ngbe_phy_connect(wx); 392 if (err) 393 goto err_free_irq; 394 395 err = netif_set_real_num_tx_queues(netdev, wx->num_tx_queues); 396 if (err) 397 goto err_dis_phy; 398 399 err = netif_set_real_num_rx_queues(netdev, wx->num_rx_queues); 400 if (err) 401 goto err_dis_phy; 402 403 ngbe_up(wx); 404 405 return 0; 406 err_dis_phy: 407 phy_disconnect(wx->phydev); 408 err_free_irq: 409 wx_free_irq(wx); 410 err_free_resources: 411 wx_free_resources(wx); 412 return err; 413 } 414 415 /** 416 * ngbe_close - Disables a network interface 417 * @netdev: network interface device structure 418 * 419 * Returns 0, this is not allowed to fail 420 * 421 * The close entry point is called when an interface is de-activated 422 * by the OS. The hardware is still under the drivers control, but 423 * needs to be disabled. A global MAC reset is issued to stop the 424 * hardware, and all transmit and receive resources are freed. 425 **/ 426 static int ngbe_close(struct net_device *netdev) 427 { 428 struct wx *wx = netdev_priv(netdev); 429 430 ngbe_down(wx); 431 wx_free_irq(wx); 432 wx_free_resources(wx); 433 phy_disconnect(wx->phydev); 434 wx_control_hw(wx, false); 435 436 return 0; 437 } 438 439 static void ngbe_dev_shutdown(struct pci_dev *pdev, bool *enable_wake) 440 { 441 struct wx *wx = pci_get_drvdata(pdev); 442 struct net_device *netdev; 443 444 netdev = wx->netdev; 445 netif_device_detach(netdev); 446 447 rtnl_lock(); 448 if (netif_running(netdev)) 449 ngbe_down(wx); 450 rtnl_unlock(); 451 wx_control_hw(wx, false); 452 453 pci_disable_device(pdev); 454 } 455 456 static void ngbe_shutdown(struct pci_dev *pdev) 457 { 458 struct wx *wx = pci_get_drvdata(pdev); 459 bool wake; 460 461 wake = !!wx->wol; 462 463 ngbe_dev_shutdown(pdev, &wake); 464 465 if (system_state == SYSTEM_POWER_OFF) { 466 pci_wake_from_d3(pdev, wake); 467 pci_set_power_state(pdev, PCI_D3hot); 468 } 469 } 470 471 static const struct net_device_ops ngbe_netdev_ops = { 472 .ndo_open = ngbe_open, 473 .ndo_stop = ngbe_close, 474 .ndo_change_mtu = wx_change_mtu, 475 .ndo_start_xmit = wx_xmit_frame, 476 .ndo_set_rx_mode = wx_set_rx_mode, 477 .ndo_set_features = wx_set_features, 478 .ndo_validate_addr = eth_validate_addr, 479 .ndo_set_mac_address = wx_set_mac, 480 .ndo_get_stats64 = wx_get_stats64, 481 .ndo_vlan_rx_add_vid = wx_vlan_rx_add_vid, 482 .ndo_vlan_rx_kill_vid = wx_vlan_rx_kill_vid, 483 }; 484 485 /** 486 * ngbe_probe - Device Initialization Routine 487 * @pdev: PCI device information struct 488 * @ent: entry in ngbe_pci_tbl 489 * 490 * Returns 0 on success, negative on failure 491 * 492 * ngbe_probe initializes an wx identified by a pci_dev structure. 493 * The OS initialization, configuring of the wx private structure, 494 * and a hardware reset occur. 495 **/ 496 static int ngbe_probe(struct pci_dev *pdev, 497 const struct pci_device_id __always_unused *ent) 498 { 499 struct net_device *netdev; 500 u32 e2rom_cksum_cap = 0; 501 struct wx *wx = NULL; 502 static int func_nums; 503 u16 e2rom_ver = 0; 504 u32 etrack_id = 0; 505 u32 saved_ver = 0; 506 int err; 507 508 err = pci_enable_device_mem(pdev); 509 if (err) 510 return err; 511 512 err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); 513 if (err) { 514 dev_err(&pdev->dev, 515 "No usable DMA configuration, aborting\n"); 516 goto err_pci_disable_dev; 517 } 518 519 err = pci_request_selected_regions(pdev, 520 pci_select_bars(pdev, IORESOURCE_MEM), 521 ngbe_driver_name); 522 if (err) { 523 dev_err(&pdev->dev, 524 "pci_request_selected_regions failed %d\n", err); 525 goto err_pci_disable_dev; 526 } 527 528 pci_set_master(pdev); 529 530 netdev = devm_alloc_etherdev_mqs(&pdev->dev, 531 sizeof(struct wx), 532 NGBE_MAX_TX_QUEUES, 533 NGBE_MAX_RX_QUEUES); 534 if (!netdev) { 535 err = -ENOMEM; 536 goto err_pci_release_regions; 537 } 538 539 SET_NETDEV_DEV(netdev, &pdev->dev); 540 541 wx = netdev_priv(netdev); 542 wx->netdev = netdev; 543 wx->pdev = pdev; 544 wx->msg_enable = BIT(3) - 1; 545 546 wx->hw_addr = devm_ioremap(&pdev->dev, 547 pci_resource_start(pdev, 0), 548 pci_resource_len(pdev, 0)); 549 if (!wx->hw_addr) { 550 err = -EIO; 551 goto err_pci_release_regions; 552 } 553 554 wx->driver_name = ngbe_driver_name; 555 ngbe_set_ethtool_ops(netdev); 556 netdev->netdev_ops = &ngbe_netdev_ops; 557 558 netdev->features = NETIF_F_SG | NETIF_F_IP_CSUM | 559 NETIF_F_TSO | NETIF_F_TSO6 | 560 NETIF_F_RXHASH | NETIF_F_RXCSUM; 561 netdev->features |= NETIF_F_SCTP_CRC | NETIF_F_TSO_MANGLEID; 562 netdev->vlan_features |= netdev->features; 563 netdev->features |= NETIF_F_IPV6_CSUM | NETIF_F_VLAN_FEATURES; 564 /* copy netdev features into list of user selectable features */ 565 netdev->hw_features |= netdev->features | NETIF_F_RXALL; 566 netdev->hw_features |= NETIF_F_NTUPLE | NETIF_F_HW_TC; 567 netdev->features |= NETIF_F_HIGHDMA; 568 netdev->hw_features |= NETIF_F_GRO; 569 netdev->features |= NETIF_F_GRO; 570 571 netdev->priv_flags |= IFF_UNICAST_FLT; 572 netdev->priv_flags |= IFF_SUPP_NOFCS; 573 574 netdev->min_mtu = ETH_MIN_MTU; 575 netdev->max_mtu = WX_MAX_JUMBO_FRAME_SIZE - 576 (ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN); 577 578 wx->bd_number = func_nums; 579 /* setup the private structure */ 580 err = ngbe_sw_init(wx); 581 if (err) 582 goto err_free_mac_table; 583 584 /* check if flash load is done after hw power up */ 585 err = wx_check_flash_load(wx, NGBE_SPI_ILDR_STATUS_PERST); 586 if (err) 587 goto err_free_mac_table; 588 err = wx_check_flash_load(wx, NGBE_SPI_ILDR_STATUS_PWRRST); 589 if (err) 590 goto err_free_mac_table; 591 592 err = wx_mng_present(wx); 593 if (err) { 594 dev_err(&pdev->dev, "Management capability is not present\n"); 595 goto err_free_mac_table; 596 } 597 598 err = ngbe_reset_hw(wx); 599 if (err) { 600 dev_err(&pdev->dev, "HW Init failed: %d\n", err); 601 goto err_free_mac_table; 602 } 603 604 if (wx->bus.func == 0) { 605 wr32(wx, NGBE_CALSUM_CAP_STATUS, 0x0); 606 wr32(wx, NGBE_EEPROM_VERSION_STORE_REG, 0x0); 607 } else { 608 e2rom_cksum_cap = rd32(wx, NGBE_CALSUM_CAP_STATUS); 609 saved_ver = rd32(wx, NGBE_EEPROM_VERSION_STORE_REG); 610 } 611 612 wx_init_eeprom_params(wx); 613 if (wx->bus.func == 0 || e2rom_cksum_cap == 0) { 614 /* make sure the EEPROM is ready */ 615 err = ngbe_eeprom_chksum_hostif(wx); 616 if (err) { 617 dev_err(&pdev->dev, "The EEPROM Checksum Is Not Valid\n"); 618 err = -EIO; 619 goto err_free_mac_table; 620 } 621 } 622 623 wx->wol = 0; 624 if (wx->wol_enabled) 625 wx->wol = NGBE_PSR_WKUP_CTL_MAG; 626 627 wx->wol_enabled = !!(wx->wol); 628 wr32(wx, NGBE_PSR_WKUP_CTL, wx->wol); 629 630 device_set_wakeup_enable(&pdev->dev, wx->wol); 631 632 /* Save off EEPROM version number and Option Rom version which 633 * together make a unique identify for the eeprom 634 */ 635 if (saved_ver) { 636 etrack_id = saved_ver; 637 } else { 638 wx_read_ee_hostif(wx, 639 wx->eeprom.sw_region_offset + NGBE_EEPROM_VERSION_H, 640 &e2rom_ver); 641 etrack_id = e2rom_ver << 16; 642 wx_read_ee_hostif(wx, 643 wx->eeprom.sw_region_offset + NGBE_EEPROM_VERSION_L, 644 &e2rom_ver); 645 etrack_id |= e2rom_ver; 646 wr32(wx, NGBE_EEPROM_VERSION_STORE_REG, etrack_id); 647 } 648 snprintf(wx->eeprom_id, sizeof(wx->eeprom_id), 649 "0x%08x", etrack_id); 650 651 eth_hw_addr_set(netdev, wx->mac.perm_addr); 652 wx_mac_set_default_filter(wx, wx->mac.perm_addr); 653 654 err = wx_init_interrupt_scheme(wx); 655 if (err) 656 goto err_free_mac_table; 657 658 /* phy Interface Configuration */ 659 err = ngbe_mdio_init(wx); 660 if (err) 661 goto err_clear_interrupt_scheme; 662 663 err = register_netdev(netdev); 664 if (err) 665 goto err_register; 666 667 pci_set_drvdata(pdev, wx); 668 669 netif_info(wx, probe, netdev, 670 "PHY: %s, PBA No: Wang Xun GbE Family Controller\n", 671 wx->mac_type == em_mac_type_mdi ? "Internal" : "External"); 672 netif_info(wx, probe, netdev, "%pM\n", netdev->dev_addr); 673 674 return 0; 675 676 err_register: 677 wx_control_hw(wx, false); 678 err_clear_interrupt_scheme: 679 wx_clear_interrupt_scheme(wx); 680 err_free_mac_table: 681 kfree(wx->mac_table); 682 err_pci_release_regions: 683 pci_release_selected_regions(pdev, 684 pci_select_bars(pdev, IORESOURCE_MEM)); 685 err_pci_disable_dev: 686 pci_disable_device(pdev); 687 return err; 688 } 689 690 /** 691 * ngbe_remove - Device Removal Routine 692 * @pdev: PCI device information struct 693 * 694 * ngbe_remove is called by the PCI subsystem to alert the driver 695 * that it should release a PCI device. The could be caused by a 696 * Hot-Plug event, or because the driver is going to be removed from 697 * memory. 698 **/ 699 static void ngbe_remove(struct pci_dev *pdev) 700 { 701 struct wx *wx = pci_get_drvdata(pdev); 702 struct net_device *netdev; 703 704 netdev = wx->netdev; 705 unregister_netdev(netdev); 706 pci_release_selected_regions(pdev, 707 pci_select_bars(pdev, IORESOURCE_MEM)); 708 709 kfree(wx->mac_table); 710 wx_clear_interrupt_scheme(wx); 711 712 pci_disable_device(pdev); 713 } 714 715 static struct pci_driver ngbe_driver = { 716 .name = ngbe_driver_name, 717 .id_table = ngbe_pci_tbl, 718 .probe = ngbe_probe, 719 .remove = ngbe_remove, 720 .shutdown = ngbe_shutdown, 721 }; 722 723 module_pci_driver(ngbe_driver); 724 725 MODULE_DEVICE_TABLE(pci, ngbe_pci_tbl); 726 MODULE_AUTHOR("Beijing WangXun Technology Co., Ltd, <software@net-swift.com>"); 727 MODULE_DESCRIPTION("WangXun(R) Gigabit PCI Express Network Driver"); 728 MODULE_LICENSE("GPL"); 729