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_hw_supported = (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 return err; 126 127 /* mac type, phy type , oem type */ 128 ngbe_init_type_code(wx); 129 130 /* Set common capability flags and settings */ 131 wx->max_q_vectors = NGBE_MAX_MSIX_VECTORS; 132 err = wx_get_pcie_msix_counts(wx, &msix_count, NGBE_MAX_MSIX_VECTORS); 133 if (err) 134 dev_err(&pdev->dev, "Do not support MSI-X\n"); 135 wx->mac.max_msix_vectors = msix_count; 136 137 if (ngbe_init_rss_key(wx)) 138 return -ENOMEM; 139 140 /* enable itr by default in dynamic mode */ 141 wx->rx_itr_setting = 1; 142 wx->tx_itr_setting = 1; 143 144 /* set default ring sizes */ 145 wx->tx_ring_count = NGBE_DEFAULT_TXD; 146 wx->rx_ring_count = NGBE_DEFAULT_RXD; 147 148 /* set default work limits */ 149 wx->tx_work_limit = NGBE_DEFAULT_TX_WORK; 150 wx->rx_work_limit = NGBE_DEFAULT_RX_WORK; 151 152 return 0; 153 } 154 155 /** 156 * ngbe_irq_enable - Enable default interrupt generation settings 157 * @wx: board private structure 158 * @queues: enable all queues interrupts 159 **/ 160 static void ngbe_irq_enable(struct wx *wx, bool queues) 161 { 162 u32 mask; 163 164 /* enable misc interrupt */ 165 mask = NGBE_PX_MISC_IEN_MASK; 166 167 wr32(wx, WX_GPIO_DDR, WX_GPIO_DDR_0); 168 wr32(wx, WX_GPIO_INTEN, WX_GPIO_INTEN_0 | WX_GPIO_INTEN_1); 169 wr32(wx, WX_GPIO_INTTYPE_LEVEL, 0x0); 170 wr32(wx, WX_GPIO_POLARITY, wx->gpio_ctrl ? 0 : 0x3); 171 172 wr32(wx, WX_PX_MISC_IEN, mask); 173 174 /* mask interrupt */ 175 if (queues) 176 wx_intr_enable(wx, NGBE_INTR_ALL); 177 else 178 wx_intr_enable(wx, NGBE_INTR_MISC(wx)); 179 } 180 181 /** 182 * ngbe_intr - msi/legacy mode Interrupt Handler 183 * @irq: interrupt number 184 * @data: pointer to a network interface device structure 185 **/ 186 static irqreturn_t ngbe_intr(int __always_unused irq, void *data) 187 { 188 struct wx_q_vector *q_vector; 189 struct wx *wx = data; 190 struct pci_dev *pdev; 191 u32 eicr; 192 193 q_vector = wx->q_vector[0]; 194 pdev = wx->pdev; 195 196 eicr = wx_misc_isb(wx, WX_ISB_VEC0); 197 if (!eicr) { 198 /* shared interrupt alert! 199 * the interrupt that we masked before the EICR read. 200 */ 201 if (netif_running(wx->netdev)) 202 ngbe_irq_enable(wx, true); 203 return IRQ_NONE; /* Not our interrupt */ 204 } 205 wx->isb_mem[WX_ISB_VEC0] = 0; 206 if (!(pdev->msi_enabled)) 207 wr32(wx, WX_PX_INTA, 1); 208 209 wx->isb_mem[WX_ISB_MISC] = 0; 210 /* would disable interrupts here but it is auto disabled */ 211 napi_schedule_irqoff(&q_vector->napi); 212 213 if (netif_running(wx->netdev)) 214 ngbe_irq_enable(wx, false); 215 216 return IRQ_HANDLED; 217 } 218 219 static irqreturn_t ngbe_msix_other(int __always_unused irq, void *data) 220 { 221 struct wx *wx = data; 222 223 /* re-enable the original interrupt state, no lsc, no queues */ 224 if (netif_running(wx->netdev)) 225 ngbe_irq_enable(wx, false); 226 227 return IRQ_HANDLED; 228 } 229 230 /** 231 * ngbe_request_msix_irqs - Initialize MSI-X interrupts 232 * @wx: board private structure 233 * 234 * ngbe_request_msix_irqs allocates MSI-X vectors and requests 235 * interrupts from the kernel. 236 **/ 237 static int ngbe_request_msix_irqs(struct wx *wx) 238 { 239 struct net_device *netdev = wx->netdev; 240 int vector, err; 241 242 for (vector = 0; vector < wx->num_q_vectors; vector++) { 243 struct wx_q_vector *q_vector = wx->q_vector[vector]; 244 struct msix_entry *entry = &wx->msix_entries[vector]; 245 246 if (q_vector->tx.ring && q_vector->rx.ring) 247 snprintf(q_vector->name, sizeof(q_vector->name) - 1, 248 "%s-TxRx-%d", netdev->name, entry->entry); 249 else 250 /* skip this unused q_vector */ 251 continue; 252 253 err = request_irq(entry->vector, wx_msix_clean_rings, 0, 254 q_vector->name, q_vector); 255 if (err) { 256 wx_err(wx, "request_irq failed for MSIX interrupt %s Error: %d\n", 257 q_vector->name, err); 258 goto free_queue_irqs; 259 } 260 } 261 262 err = request_irq(wx->msix_entries[vector].vector, 263 ngbe_msix_other, 0, netdev->name, wx); 264 265 if (err) { 266 wx_err(wx, "request_irq for msix_other failed: %d\n", err); 267 goto free_queue_irqs; 268 } 269 270 return 0; 271 272 free_queue_irqs: 273 while (vector) { 274 vector--; 275 free_irq(wx->msix_entries[vector].vector, 276 wx->q_vector[vector]); 277 } 278 wx_reset_interrupt_capability(wx); 279 return err; 280 } 281 282 /** 283 * ngbe_request_irq - initialize interrupts 284 * @wx: board private structure 285 * 286 * Attempts to configure interrupts using the best available 287 * capabilities of the hardware and kernel. 288 **/ 289 static int ngbe_request_irq(struct wx *wx) 290 { 291 struct net_device *netdev = wx->netdev; 292 struct pci_dev *pdev = wx->pdev; 293 int err; 294 295 if (pdev->msix_enabled) 296 err = ngbe_request_msix_irqs(wx); 297 else if (pdev->msi_enabled) 298 err = request_irq(pdev->irq, ngbe_intr, 0, 299 netdev->name, wx); 300 else 301 err = request_irq(pdev->irq, ngbe_intr, IRQF_SHARED, 302 netdev->name, wx); 303 304 if (err) 305 wx_err(wx, "request_irq failed, Error %d\n", err); 306 307 return err; 308 } 309 310 static void ngbe_disable_device(struct wx *wx) 311 { 312 struct net_device *netdev = wx->netdev; 313 u32 i; 314 315 /* disable all enabled rx queues */ 316 for (i = 0; i < wx->num_rx_queues; i++) 317 /* this call also flushes the previous write */ 318 wx_disable_rx_queue(wx, wx->rx_ring[i]); 319 /* disable receives */ 320 wx_disable_rx(wx); 321 wx_napi_disable_all(wx); 322 netif_tx_stop_all_queues(netdev); 323 netif_tx_disable(netdev); 324 if (wx->gpio_ctrl) 325 ngbe_sfp_modules_txrx_powerctl(wx, false); 326 wx_irq_disable(wx); 327 /* disable transmits in the hardware now that interrupts are off */ 328 for (i = 0; i < wx->num_tx_queues; i++) { 329 u8 reg_idx = wx->tx_ring[i]->reg_idx; 330 331 wr32(wx, WX_PX_TR_CFG(reg_idx), WX_PX_TR_CFG_SWFLSH); 332 } 333 334 wx_update_stats(wx); 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 u32 wufc = wx->wol; 444 445 netdev = wx->netdev; 446 rtnl_lock(); 447 netif_device_detach(netdev); 448 449 if (netif_running(netdev)) 450 ngbe_close(netdev); 451 wx_clear_interrupt_scheme(wx); 452 rtnl_unlock(); 453 454 if (wufc) { 455 wx_set_rx_mode(netdev); 456 wx_configure_rx(wx); 457 wr32(wx, NGBE_PSR_WKUP_CTL, wufc); 458 } else { 459 wr32(wx, NGBE_PSR_WKUP_CTL, 0); 460 } 461 pci_wake_from_d3(pdev, !!wufc); 462 *enable_wake = !!wufc; 463 wx_control_hw(wx, false); 464 465 pci_disable_device(pdev); 466 } 467 468 static void ngbe_shutdown(struct pci_dev *pdev) 469 { 470 struct wx *wx = pci_get_drvdata(pdev); 471 bool wake; 472 473 wake = !!wx->wol; 474 475 ngbe_dev_shutdown(pdev, &wake); 476 477 if (system_state == SYSTEM_POWER_OFF) { 478 pci_wake_from_d3(pdev, wake); 479 pci_set_power_state(pdev, PCI_D3hot); 480 } 481 } 482 483 static const struct net_device_ops ngbe_netdev_ops = { 484 .ndo_open = ngbe_open, 485 .ndo_stop = ngbe_close, 486 .ndo_change_mtu = wx_change_mtu, 487 .ndo_start_xmit = wx_xmit_frame, 488 .ndo_set_rx_mode = wx_set_rx_mode, 489 .ndo_set_features = wx_set_features, 490 .ndo_validate_addr = eth_validate_addr, 491 .ndo_set_mac_address = wx_set_mac, 492 .ndo_get_stats64 = wx_get_stats64, 493 .ndo_vlan_rx_add_vid = wx_vlan_rx_add_vid, 494 .ndo_vlan_rx_kill_vid = wx_vlan_rx_kill_vid, 495 }; 496 497 /** 498 * ngbe_probe - Device Initialization Routine 499 * @pdev: PCI device information struct 500 * @ent: entry in ngbe_pci_tbl 501 * 502 * Returns 0 on success, negative on failure 503 * 504 * ngbe_probe initializes an wx identified by a pci_dev structure. 505 * The OS initialization, configuring of the wx private structure, 506 * and a hardware reset occur. 507 **/ 508 static int ngbe_probe(struct pci_dev *pdev, 509 const struct pci_device_id __always_unused *ent) 510 { 511 struct net_device *netdev; 512 u32 e2rom_cksum_cap = 0; 513 struct wx *wx = NULL; 514 static int func_nums; 515 u16 e2rom_ver = 0; 516 u32 etrack_id = 0; 517 u32 saved_ver = 0; 518 int err; 519 520 err = pci_enable_device_mem(pdev); 521 if (err) 522 return err; 523 524 err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); 525 if (err) { 526 dev_err(&pdev->dev, 527 "No usable DMA configuration, aborting\n"); 528 goto err_pci_disable_dev; 529 } 530 531 err = pci_request_selected_regions(pdev, 532 pci_select_bars(pdev, IORESOURCE_MEM), 533 ngbe_driver_name); 534 if (err) { 535 dev_err(&pdev->dev, 536 "pci_request_selected_regions failed %d\n", err); 537 goto err_pci_disable_dev; 538 } 539 540 pci_set_master(pdev); 541 542 netdev = devm_alloc_etherdev_mqs(&pdev->dev, 543 sizeof(struct wx), 544 NGBE_MAX_TX_QUEUES, 545 NGBE_MAX_RX_QUEUES); 546 if (!netdev) { 547 err = -ENOMEM; 548 goto err_pci_release_regions; 549 } 550 551 SET_NETDEV_DEV(netdev, &pdev->dev); 552 553 wx = netdev_priv(netdev); 554 wx->netdev = netdev; 555 wx->pdev = pdev; 556 wx->msg_enable = BIT(3) - 1; 557 558 wx->hw_addr = devm_ioremap(&pdev->dev, 559 pci_resource_start(pdev, 0), 560 pci_resource_len(pdev, 0)); 561 if (!wx->hw_addr) { 562 err = -EIO; 563 goto err_pci_release_regions; 564 } 565 566 wx->driver_name = ngbe_driver_name; 567 ngbe_set_ethtool_ops(netdev); 568 netdev->netdev_ops = &ngbe_netdev_ops; 569 570 netdev->features = NETIF_F_SG | NETIF_F_IP_CSUM | 571 NETIF_F_TSO | NETIF_F_TSO6 | 572 NETIF_F_RXHASH | NETIF_F_RXCSUM; 573 netdev->features |= NETIF_F_SCTP_CRC | NETIF_F_TSO_MANGLEID; 574 netdev->vlan_features |= netdev->features; 575 netdev->features |= NETIF_F_IPV6_CSUM | NETIF_F_VLAN_FEATURES; 576 /* copy netdev features into list of user selectable features */ 577 netdev->hw_features |= netdev->features | NETIF_F_RXALL; 578 netdev->hw_features |= NETIF_F_NTUPLE | NETIF_F_HW_TC; 579 netdev->features |= NETIF_F_HIGHDMA; 580 netdev->hw_features |= NETIF_F_GRO; 581 netdev->features |= NETIF_F_GRO; 582 583 netdev->priv_flags |= IFF_UNICAST_FLT; 584 netdev->priv_flags |= IFF_SUPP_NOFCS; 585 586 netdev->min_mtu = ETH_MIN_MTU; 587 netdev->max_mtu = WX_MAX_JUMBO_FRAME_SIZE - 588 (ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN); 589 590 wx->bd_number = func_nums; 591 /* setup the private structure */ 592 err = ngbe_sw_init(wx); 593 if (err) 594 goto err_free_mac_table; 595 596 /* check if flash load is done after hw power up */ 597 err = wx_check_flash_load(wx, NGBE_SPI_ILDR_STATUS_PERST); 598 if (err) 599 goto err_free_mac_table; 600 err = wx_check_flash_load(wx, NGBE_SPI_ILDR_STATUS_PWRRST); 601 if (err) 602 goto err_free_mac_table; 603 604 err = wx_mng_present(wx); 605 if (err) { 606 dev_err(&pdev->dev, "Management capability is not present\n"); 607 goto err_free_mac_table; 608 } 609 610 err = ngbe_reset_hw(wx); 611 if (err) { 612 dev_err(&pdev->dev, "HW Init failed: %d\n", err); 613 goto err_free_mac_table; 614 } 615 616 if (wx->bus.func == 0) { 617 wr32(wx, NGBE_CALSUM_CAP_STATUS, 0x0); 618 wr32(wx, NGBE_EEPROM_VERSION_STORE_REG, 0x0); 619 } else { 620 e2rom_cksum_cap = rd32(wx, NGBE_CALSUM_CAP_STATUS); 621 saved_ver = rd32(wx, NGBE_EEPROM_VERSION_STORE_REG); 622 } 623 624 wx_init_eeprom_params(wx); 625 if (wx->bus.func == 0 || e2rom_cksum_cap == 0) { 626 /* make sure the EEPROM is ready */ 627 err = ngbe_eeprom_chksum_hostif(wx); 628 if (err) { 629 dev_err(&pdev->dev, "The EEPROM Checksum Is Not Valid\n"); 630 err = -EIO; 631 goto err_free_mac_table; 632 } 633 } 634 635 wx->wol = 0; 636 if (wx->wol_hw_supported) 637 wx->wol = NGBE_PSR_WKUP_CTL_MAG; 638 639 netdev->wol_enabled = !!(wx->wol); 640 wr32(wx, NGBE_PSR_WKUP_CTL, wx->wol); 641 device_set_wakeup_enable(&pdev->dev, wx->wol); 642 643 /* Save off EEPROM version number and Option Rom version which 644 * together make a unique identify for the eeprom 645 */ 646 if (saved_ver) { 647 etrack_id = saved_ver; 648 } else { 649 wx_read_ee_hostif(wx, 650 wx->eeprom.sw_region_offset + NGBE_EEPROM_VERSION_H, 651 &e2rom_ver); 652 etrack_id = e2rom_ver << 16; 653 wx_read_ee_hostif(wx, 654 wx->eeprom.sw_region_offset + NGBE_EEPROM_VERSION_L, 655 &e2rom_ver); 656 etrack_id |= e2rom_ver; 657 wr32(wx, NGBE_EEPROM_VERSION_STORE_REG, etrack_id); 658 } 659 snprintf(wx->eeprom_id, sizeof(wx->eeprom_id), 660 "0x%08x", etrack_id); 661 662 eth_hw_addr_set(netdev, wx->mac.perm_addr); 663 wx_mac_set_default_filter(wx, wx->mac.perm_addr); 664 665 err = wx_init_interrupt_scheme(wx); 666 if (err) 667 goto err_free_mac_table; 668 669 /* phy Interface Configuration */ 670 err = ngbe_mdio_init(wx); 671 if (err) 672 goto err_clear_interrupt_scheme; 673 674 err = register_netdev(netdev); 675 if (err) 676 goto err_register; 677 678 pci_set_drvdata(pdev, wx); 679 680 return 0; 681 682 err_register: 683 wx_control_hw(wx, false); 684 err_clear_interrupt_scheme: 685 wx_clear_interrupt_scheme(wx); 686 err_free_mac_table: 687 kfree(wx->mac_table); 688 err_pci_release_regions: 689 pci_release_selected_regions(pdev, 690 pci_select_bars(pdev, IORESOURCE_MEM)); 691 err_pci_disable_dev: 692 pci_disable_device(pdev); 693 return err; 694 } 695 696 /** 697 * ngbe_remove - Device Removal Routine 698 * @pdev: PCI device information struct 699 * 700 * ngbe_remove is called by the PCI subsystem to alert the driver 701 * that it should release a PCI device. The could be caused by a 702 * Hot-Plug event, or because the driver is going to be removed from 703 * memory. 704 **/ 705 static void ngbe_remove(struct pci_dev *pdev) 706 { 707 struct wx *wx = pci_get_drvdata(pdev); 708 struct net_device *netdev; 709 710 netdev = wx->netdev; 711 unregister_netdev(netdev); 712 pci_release_selected_regions(pdev, 713 pci_select_bars(pdev, IORESOURCE_MEM)); 714 715 kfree(wx->mac_table); 716 wx_clear_interrupt_scheme(wx); 717 718 pci_disable_device(pdev); 719 } 720 721 static int ngbe_suspend(struct pci_dev *pdev, pm_message_t state) 722 { 723 bool wake; 724 725 ngbe_dev_shutdown(pdev, &wake); 726 device_set_wakeup_enable(&pdev->dev, wake); 727 728 return 0; 729 } 730 731 static int ngbe_resume(struct pci_dev *pdev) 732 { 733 struct net_device *netdev; 734 struct wx *wx; 735 u32 err; 736 737 wx = pci_get_drvdata(pdev); 738 netdev = wx->netdev; 739 740 err = pci_enable_device_mem(pdev); 741 if (err) { 742 wx_err(wx, "Cannot enable PCI device from suspend\n"); 743 return err; 744 } 745 pci_set_master(pdev); 746 device_wakeup_disable(&pdev->dev); 747 748 ngbe_reset_hw(wx); 749 rtnl_lock(); 750 err = wx_init_interrupt_scheme(wx); 751 if (!err && netif_running(netdev)) 752 err = ngbe_open(netdev); 753 if (!err) 754 netif_device_attach(netdev); 755 rtnl_unlock(); 756 757 return 0; 758 } 759 760 static struct pci_driver ngbe_driver = { 761 .name = ngbe_driver_name, 762 .id_table = ngbe_pci_tbl, 763 .probe = ngbe_probe, 764 .remove = ngbe_remove, 765 .suspend = ngbe_suspend, 766 .resume = ngbe_resume, 767 .shutdown = ngbe_shutdown, 768 }; 769 770 module_pci_driver(ngbe_driver); 771 772 MODULE_DEVICE_TABLE(pci, ngbe_pci_tbl); 773 MODULE_AUTHOR("Beijing WangXun Technology Co., Ltd, <software@net-swift.com>"); 774 MODULE_DESCRIPTION("WangXun(R) Gigabit PCI Express Network Driver"); 775 MODULE_LICENSE("GPL"); 776