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 22char 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 */ 29static 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 **/ 50static 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 **/ 88static 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 **/ 108static 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 **/ 160static 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 **/ 186static 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 219static 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 **/ 237static 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 272free_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 **/ 289static 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 310static 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 335static void ngbe_down(struct wx *wx) 336{ 337 phy_stop(wx->phydev); 338 ngbe_disable_device(wx); 339 wx_clean_all_tx_rings(wx); 340 wx_clean_all_rx_rings(wx); 341} 342 343static void ngbe_up(struct wx *wx) 344{ 345 wx_configure_vectors(wx); 346 347 /* make sure to complete pre-operations */ 348 smp_mb__before_atomic(); 349 wx_napi_enable_all(wx); 350 /* enable transmits */ 351 netif_tx_start_all_queues(wx->netdev); 352 353 /* clear any pending interrupts, may auto mask */ 354 rd32(wx, WX_PX_IC(0)); 355 rd32(wx, WX_PX_MISC_IC); 356 ngbe_irq_enable(wx, true); 357 if (wx->gpio_ctrl) 358 ngbe_sfp_modules_txrx_powerctl(wx, true); 359 360 phy_start(wx->phydev); 361} 362 363/** 364 * ngbe_open - Called when a network interface is made active 365 * @netdev: network interface device structure 366 * 367 * Returns 0 on success, negative value on failure 368 * 369 * The open entry point is called when a network interface is made 370 * active by the system (IFF_UP). 371 **/ 372static int ngbe_open(struct net_device *netdev) 373{ 374 struct wx *wx = netdev_priv(netdev); 375 int err; 376 377 wx_control_hw(wx, true); 378 379 err = wx_setup_resources(wx); 380 if (err) 381 return err; 382 383 wx_configure(wx); 384 385 err = ngbe_request_irq(wx); 386 if (err) 387 goto err_free_resources; 388 389 err = ngbe_phy_connect(wx); 390 if (err) 391 goto err_free_irq; 392 393 err = netif_set_real_num_tx_queues(netdev, wx->num_tx_queues); 394 if (err) 395 goto err_dis_phy; 396 397 err = netif_set_real_num_rx_queues(netdev, wx->num_rx_queues); 398 if (err) 399 goto err_dis_phy; 400 401 ngbe_up(wx); 402 403 return 0; 404err_dis_phy: 405 phy_disconnect(wx->phydev); 406err_free_irq: 407 wx_free_irq(wx); 408err_free_resources: 409 wx_free_resources(wx); 410 return err; 411} 412 413/** 414 * ngbe_close - Disables a network interface 415 * @netdev: network interface device structure 416 * 417 * Returns 0, this is not allowed to fail 418 * 419 * The close entry point is called when an interface is de-activated 420 * by the OS. The hardware is still under the drivers control, but 421 * needs to be disabled. A global MAC reset is issued to stop the 422 * hardware, and all transmit and receive resources are freed. 423 **/ 424static int ngbe_close(struct net_device *netdev) 425{ 426 struct wx *wx = netdev_priv(netdev); 427 428 ngbe_down(wx); 429 wx_free_irq(wx); 430 wx_free_resources(wx); 431 phy_disconnect(wx->phydev); 432 wx_control_hw(wx, false); 433 434 return 0; 435} 436 437static void ngbe_dev_shutdown(struct pci_dev *pdev, bool *enable_wake) 438{ 439 struct wx *wx = pci_get_drvdata(pdev); 440 struct net_device *netdev; 441 u32 wufc = wx->wol; 442 443 netdev = wx->netdev; 444 rtnl_lock(); 445 netif_device_detach(netdev); 446 447 if (netif_running(netdev)) 448 ngbe_close(netdev); 449 wx_clear_interrupt_scheme(wx); 450 rtnl_unlock(); 451 452 if (wufc) { 453 wx_set_rx_mode(netdev); 454 wx_configure_rx(wx); 455 wr32(wx, NGBE_PSR_WKUP_CTL, wufc); 456 } else { 457 wr32(wx, NGBE_PSR_WKUP_CTL, 0); 458 } 459 pci_wake_from_d3(pdev, !!wufc); 460 *enable_wake = !!wufc; 461 wx_control_hw(wx, false); 462 463 pci_disable_device(pdev); 464} 465 466static void ngbe_shutdown(struct pci_dev *pdev) 467{ 468 struct wx *wx = pci_get_drvdata(pdev); 469 bool wake; 470 471 wake = !!wx->wol; 472 473 ngbe_dev_shutdown(pdev, &wake); 474 475 if (system_state == SYSTEM_POWER_OFF) { 476 pci_wake_from_d3(pdev, wake); 477 pci_set_power_state(pdev, PCI_D3hot); 478 } 479} 480 481static const struct net_device_ops ngbe_netdev_ops = { 482 .ndo_open = ngbe_open, 483 .ndo_stop = ngbe_close, 484 .ndo_change_mtu = wx_change_mtu, 485 .ndo_start_xmit = wx_xmit_frame, 486 .ndo_set_rx_mode = wx_set_rx_mode, 487 .ndo_set_features = wx_set_features, 488 .ndo_validate_addr = eth_validate_addr, 489 .ndo_set_mac_address = wx_set_mac, 490 .ndo_get_stats64 = wx_get_stats64, 491 .ndo_vlan_rx_add_vid = wx_vlan_rx_add_vid, 492 .ndo_vlan_rx_kill_vid = wx_vlan_rx_kill_vid, 493}; 494 495/** 496 * ngbe_probe - Device Initialization Routine 497 * @pdev: PCI device information struct 498 * @ent: entry in ngbe_pci_tbl 499 * 500 * Returns 0 on success, negative on failure 501 * 502 * ngbe_probe initializes an wx identified by a pci_dev structure. 503 * The OS initialization, configuring of the wx private structure, 504 * and a hardware reset occur. 505 **/ 506static int ngbe_probe(struct pci_dev *pdev, 507 const struct pci_device_id __always_unused *ent) 508{ 509 struct net_device *netdev; 510 u32 e2rom_cksum_cap = 0; 511 struct wx *wx = NULL; 512 static int func_nums; 513 u16 e2rom_ver = 0; 514 u32 etrack_id = 0; 515 u32 saved_ver = 0; 516 int err; 517 518 err = pci_enable_device_mem(pdev); 519 if (err) 520 return err; 521 522 err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); 523 if (err) { 524 dev_err(&pdev->dev, 525 "No usable DMA configuration, aborting\n"); 526 goto err_pci_disable_dev; 527 } 528 529 err = pci_request_selected_regions(pdev, 530 pci_select_bars(pdev, IORESOURCE_MEM), 531 ngbe_driver_name); 532 if (err) { 533 dev_err(&pdev->dev, 534 "pci_request_selected_regions failed %d\n", err); 535 goto err_pci_disable_dev; 536 } 537 538 pci_set_master(pdev); 539 540 netdev = devm_alloc_etherdev_mqs(&pdev->dev, 541 sizeof(struct wx), 542 NGBE_MAX_TX_QUEUES, 543 NGBE_MAX_RX_QUEUES); 544 if (!netdev) { 545 err = -ENOMEM; 546 goto err_pci_release_regions; 547 } 548 549 SET_NETDEV_DEV(netdev, &pdev->dev); 550 551 wx = netdev_priv(netdev); 552 wx->netdev = netdev; 553 wx->pdev = pdev; 554 wx->msg_enable = BIT(3) - 1; 555 556 wx->hw_addr = devm_ioremap(&pdev->dev, 557 pci_resource_start(pdev, 0), 558 pci_resource_len(pdev, 0)); 559 if (!wx->hw_addr) { 560 err = -EIO; 561 goto err_pci_release_regions; 562 } 563 564 wx->driver_name = ngbe_driver_name; 565 ngbe_set_ethtool_ops(netdev); 566 netdev->netdev_ops = &ngbe_netdev_ops; 567 568 netdev->features = NETIF_F_SG | NETIF_F_IP_CSUM | 569 NETIF_F_TSO | NETIF_F_TSO6 | 570 NETIF_F_RXHASH | NETIF_F_RXCSUM; 571 netdev->features |= NETIF_F_SCTP_CRC | NETIF_F_TSO_MANGLEID; 572 netdev->vlan_features |= netdev->features; 573 netdev->features |= NETIF_F_IPV6_CSUM | NETIF_F_VLAN_FEATURES; 574 /* copy netdev features into list of user selectable features */ 575 netdev->hw_features |= netdev->features | NETIF_F_RXALL; 576 netdev->hw_features |= NETIF_F_NTUPLE | NETIF_F_HW_TC; 577 netdev->features |= NETIF_F_HIGHDMA; 578 netdev->hw_features |= NETIF_F_GRO; 579 netdev->features |= NETIF_F_GRO; 580 581 netdev->priv_flags |= IFF_UNICAST_FLT; 582 netdev->priv_flags |= IFF_SUPP_NOFCS; 583 584 netdev->min_mtu = ETH_MIN_MTU; 585 netdev->max_mtu = WX_MAX_JUMBO_FRAME_SIZE - 586 (ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN); 587 588 wx->bd_number = func_nums; 589 /* setup the private structure */ 590 err = ngbe_sw_init(wx); 591 if (err) 592 goto err_free_mac_table; 593 594 /* check if flash load is done after hw power up */ 595 err = wx_check_flash_load(wx, NGBE_SPI_ILDR_STATUS_PERST); 596 if (err) 597 goto err_free_mac_table; 598 err = wx_check_flash_load(wx, NGBE_SPI_ILDR_STATUS_PWRRST); 599 if (err) 600 goto err_free_mac_table; 601 602 err = wx_mng_present(wx); 603 if (err) { 604 dev_err(&pdev->dev, "Management capability is not present\n"); 605 goto err_free_mac_table; 606 } 607 608 err = ngbe_reset_hw(wx); 609 if (err) { 610 dev_err(&pdev->dev, "HW Init failed: %d\n", err); 611 goto err_free_mac_table; 612 } 613 614 if (wx->bus.func == 0) { 615 wr32(wx, NGBE_CALSUM_CAP_STATUS, 0x0); 616 wr32(wx, NGBE_EEPROM_VERSION_STORE_REG, 0x0); 617 } else { 618 e2rom_cksum_cap = rd32(wx, NGBE_CALSUM_CAP_STATUS); 619 saved_ver = rd32(wx, NGBE_EEPROM_VERSION_STORE_REG); 620 } 621 622 wx_init_eeprom_params(wx); 623 if (wx->bus.func == 0 || e2rom_cksum_cap == 0) { 624 /* make sure the EEPROM is ready */ 625 err = ngbe_eeprom_chksum_hostif(wx); 626 if (err) { 627 dev_err(&pdev->dev, "The EEPROM Checksum Is Not Valid\n"); 628 err = -EIO; 629 goto err_free_mac_table; 630 } 631 } 632 633 wx->wol = 0; 634 if (wx->wol_hw_supported) 635 wx->wol = NGBE_PSR_WKUP_CTL_MAG; 636 637 netdev->wol_enabled = !!(wx->wol); 638 wr32(wx, NGBE_PSR_WKUP_CTL, wx->wol); 639 device_set_wakeup_enable(&pdev->dev, wx->wol); 640 641 /* Save off EEPROM version number and Option Rom version which 642 * together make a unique identify for the eeprom 643 */ 644 if (saved_ver) { 645 etrack_id = saved_ver; 646 } else { 647 wx_read_ee_hostif(wx, 648 wx->eeprom.sw_region_offset + NGBE_EEPROM_VERSION_H, 649 &e2rom_ver); 650 etrack_id = e2rom_ver << 16; 651 wx_read_ee_hostif(wx, 652 wx->eeprom.sw_region_offset + NGBE_EEPROM_VERSION_L, 653 &e2rom_ver); 654 etrack_id |= e2rom_ver; 655 wr32(wx, NGBE_EEPROM_VERSION_STORE_REG, etrack_id); 656 } 657 snprintf(wx->eeprom_id, sizeof(wx->eeprom_id), 658 "0x%08x", etrack_id); 659 660 eth_hw_addr_set(netdev, wx->mac.perm_addr); 661 wx_mac_set_default_filter(wx, wx->mac.perm_addr); 662 663 err = wx_init_interrupt_scheme(wx); 664 if (err) 665 goto err_free_mac_table; 666 667 /* phy Interface Configuration */ 668 err = ngbe_mdio_init(wx); 669 if (err) 670 goto err_clear_interrupt_scheme; 671 672 err = register_netdev(netdev); 673 if (err) 674 goto err_register; 675 676 pci_set_drvdata(pdev, wx); 677 678 netif_info(wx, probe, netdev, 679 "PHY: %s, PBA No: Wang Xun GbE Family Controller\n", 680 wx->mac_type == em_mac_type_mdi ? "Internal" : "External"); 681 netif_info(wx, probe, netdev, "%pM\n", netdev->dev_addr); 682 683 return 0; 684 685err_register: 686 wx_control_hw(wx, false); 687err_clear_interrupt_scheme: 688 wx_clear_interrupt_scheme(wx); 689err_free_mac_table: 690 kfree(wx->mac_table); 691err_pci_release_regions: 692 pci_release_selected_regions(pdev, 693 pci_select_bars(pdev, IORESOURCE_MEM)); 694err_pci_disable_dev: 695 pci_disable_device(pdev); 696 return err; 697} 698 699/** 700 * ngbe_remove - Device Removal Routine 701 * @pdev: PCI device information struct 702 * 703 * ngbe_remove is called by the PCI subsystem to alert the driver 704 * that it should release a PCI device. The could be caused by a 705 * Hot-Plug event, or because the driver is going to be removed from 706 * memory. 707 **/ 708static void ngbe_remove(struct pci_dev *pdev) 709{ 710 struct wx *wx = pci_get_drvdata(pdev); 711 struct net_device *netdev; 712 713 netdev = wx->netdev; 714 unregister_netdev(netdev); 715 pci_release_selected_regions(pdev, 716 pci_select_bars(pdev, IORESOURCE_MEM)); 717 718 kfree(wx->mac_table); 719 wx_clear_interrupt_scheme(wx); 720 721 pci_disable_device(pdev); 722} 723 724static int ngbe_suspend(struct pci_dev *pdev, pm_message_t state) 725{ 726 bool wake; 727 728 ngbe_dev_shutdown(pdev, &wake); 729 device_set_wakeup_enable(&pdev->dev, wake); 730 731 return 0; 732} 733 734static int ngbe_resume(struct pci_dev *pdev) 735{ 736 struct net_device *netdev; 737 struct wx *wx; 738 u32 err; 739 740 wx = pci_get_drvdata(pdev); 741 netdev = wx->netdev; 742 743 err = pci_enable_device_mem(pdev); 744 if (err) { 745 wx_err(wx, "Cannot enable PCI device from suspend\n"); 746 return err; 747 } 748 pci_set_master(pdev); 749 device_wakeup_disable(&pdev->dev); 750 751 ngbe_reset_hw(wx); 752 rtnl_lock(); 753 err = wx_init_interrupt_scheme(wx); 754 if (!err && netif_running(netdev)) 755 err = ngbe_open(netdev); 756 if (!err) 757 netif_device_attach(netdev); 758 rtnl_unlock(); 759 760 return 0; 761} 762 763static struct pci_driver ngbe_driver = { 764 .name = ngbe_driver_name, 765 .id_table = ngbe_pci_tbl, 766 .probe = ngbe_probe, 767 .remove = ngbe_remove, 768 .suspend = ngbe_suspend, 769 .resume = ngbe_resume, 770 .shutdown = ngbe_shutdown, 771}; 772 773module_pci_driver(ngbe_driver); 774 775MODULE_DEVICE_TABLE(pci, ngbe_pci_tbl); 776MODULE_AUTHOR("Beijing WangXun Technology Co., Ltd, <software@net-swift.com>"); 777MODULE_DESCRIPTION("WangXun(R) Gigabit PCI Express Network Driver"); 778MODULE_LICENSE("GPL"); 779