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1// SPDX-License-Identifier: GPL-2.02/* Copyright(c) 1999 - 2006 Intel Corporation. */3 4/* ethtool support for e1000 */5 6#include "e1000.h"7#include <linux/jiffies.h>8#include <linux/uaccess.h>9 10enum {NETDEV_STATS, E1000_STATS};11 12struct e1000_stats {13 char stat_string[ETH_GSTRING_LEN];14 int type;15 int sizeof_stat;16 int stat_offset;17};18 19#define E1000_STAT(m) E1000_STATS, \20 sizeof(((struct e1000_adapter *)0)->m), \21 offsetof(struct e1000_adapter, m)22#define E1000_NETDEV_STAT(m) NETDEV_STATS, \23 sizeof(((struct net_device *)0)->m), \24 offsetof(struct net_device, m)25 26static const struct e1000_stats e1000_gstrings_stats[] = {27 { "rx_packets", E1000_STAT(stats.gprc) },28 { "tx_packets", E1000_STAT(stats.gptc) },29 { "rx_bytes", E1000_STAT(stats.gorcl) },30 { "tx_bytes", E1000_STAT(stats.gotcl) },31 { "rx_broadcast", E1000_STAT(stats.bprc) },32 { "tx_broadcast", E1000_STAT(stats.bptc) },33 { "rx_multicast", E1000_STAT(stats.mprc) },34 { "tx_multicast", E1000_STAT(stats.mptc) },35 { "rx_errors", E1000_STAT(stats.rxerrc) },36 { "tx_errors", E1000_STAT(stats.txerrc) },37 { "tx_dropped", E1000_NETDEV_STAT(stats.tx_dropped) },38 { "multicast", E1000_STAT(stats.mprc) },39 { "collisions", E1000_STAT(stats.colc) },40 { "rx_length_errors", E1000_STAT(stats.rlerrc) },41 { "rx_over_errors", E1000_NETDEV_STAT(stats.rx_over_errors) },42 { "rx_crc_errors", E1000_STAT(stats.crcerrs) },43 { "rx_frame_errors", E1000_NETDEV_STAT(stats.rx_frame_errors) },44 { "rx_no_buffer_count", E1000_STAT(stats.rnbc) },45 { "rx_missed_errors", E1000_STAT(stats.mpc) },46 { "tx_aborted_errors", E1000_STAT(stats.ecol) },47 { "tx_carrier_errors", E1000_STAT(stats.tncrs) },48 { "tx_fifo_errors", E1000_NETDEV_STAT(stats.tx_fifo_errors) },49 { "tx_heartbeat_errors", E1000_NETDEV_STAT(stats.tx_heartbeat_errors) },50 { "tx_window_errors", E1000_STAT(stats.latecol) },51 { "tx_abort_late_coll", E1000_STAT(stats.latecol) },52 { "tx_deferred_ok", E1000_STAT(stats.dc) },53 { "tx_single_coll_ok", E1000_STAT(stats.scc) },54 { "tx_multi_coll_ok", E1000_STAT(stats.mcc) },55 { "tx_timeout_count", E1000_STAT(tx_timeout_count) },56 { "tx_restart_queue", E1000_STAT(restart_queue) },57 { "rx_long_length_errors", E1000_STAT(stats.roc) },58 { "rx_short_length_errors", E1000_STAT(stats.ruc) },59 { "rx_align_errors", E1000_STAT(stats.algnerrc) },60 { "tx_tcp_seg_good", E1000_STAT(stats.tsctc) },61 { "tx_tcp_seg_failed", E1000_STAT(stats.tsctfc) },62 { "rx_flow_control_xon", E1000_STAT(stats.xonrxc) },63 { "rx_flow_control_xoff", E1000_STAT(stats.xoffrxc) },64 { "tx_flow_control_xon", E1000_STAT(stats.xontxc) },65 { "tx_flow_control_xoff", E1000_STAT(stats.xofftxc) },66 { "rx_long_byte_count", E1000_STAT(stats.gorcl) },67 { "rx_csum_offload_good", E1000_STAT(hw_csum_good) },68 { "rx_csum_offload_errors", E1000_STAT(hw_csum_err) },69 { "alloc_rx_buff_failed", E1000_STAT(alloc_rx_buff_failed) },70 { "tx_smbus", E1000_STAT(stats.mgptc) },71 { "rx_smbus", E1000_STAT(stats.mgprc) },72 { "dropped_smbus", E1000_STAT(stats.mgpdc) },73};74 75#define E1000_QUEUE_STATS_LEN 076#define E1000_GLOBAL_STATS_LEN ARRAY_SIZE(e1000_gstrings_stats)77#define E1000_STATS_LEN (E1000_GLOBAL_STATS_LEN + E1000_QUEUE_STATS_LEN)78static const char e1000_gstrings_test[][ETH_GSTRING_LEN] = {79 "Register test (offline)", "Eeprom test (offline)",80 "Interrupt test (offline)", "Loopback test (offline)",81 "Link test (on/offline)"82};83 84#define E1000_TEST_LEN ARRAY_SIZE(e1000_gstrings_test)85 86static int e1000_get_link_ksettings(struct net_device *netdev,87 struct ethtool_link_ksettings *cmd)88{89 struct e1000_adapter *adapter = netdev_priv(netdev);90 struct e1000_hw *hw = &adapter->hw;91 u32 supported, advertising;92 93 if (hw->media_type == e1000_media_type_copper) {94 supported = (SUPPORTED_10baseT_Half |95 SUPPORTED_10baseT_Full |96 SUPPORTED_100baseT_Half |97 SUPPORTED_100baseT_Full |98 SUPPORTED_1000baseT_Full|99 SUPPORTED_Autoneg |100 SUPPORTED_TP);101 advertising = ADVERTISED_TP;102 103 if (hw->autoneg == 1) {104 advertising |= ADVERTISED_Autoneg;105 /* the e1000 autoneg seems to match ethtool nicely */106 advertising |= hw->autoneg_advertised;107 }108 109 cmd->base.port = PORT_TP;110 cmd->base.phy_address = hw->phy_addr;111 } else {112 supported = (SUPPORTED_1000baseT_Full |113 SUPPORTED_FIBRE |114 SUPPORTED_Autoneg);115 116 advertising = (ADVERTISED_1000baseT_Full |117 ADVERTISED_FIBRE |118 ADVERTISED_Autoneg);119 120 cmd->base.port = PORT_FIBRE;121 }122 123 if (er32(STATUS) & E1000_STATUS_LU) {124 e1000_get_speed_and_duplex(hw, &adapter->link_speed,125 &adapter->link_duplex);126 cmd->base.speed = adapter->link_speed;127 128 /* unfortunately FULL_DUPLEX != DUPLEX_FULL129 * and HALF_DUPLEX != DUPLEX_HALF130 */131 if (adapter->link_duplex == FULL_DUPLEX)132 cmd->base.duplex = DUPLEX_FULL;133 else134 cmd->base.duplex = DUPLEX_HALF;135 } else {136 cmd->base.speed = SPEED_UNKNOWN;137 cmd->base.duplex = DUPLEX_UNKNOWN;138 }139 140 cmd->base.autoneg = ((hw->media_type == e1000_media_type_fiber) ||141 hw->autoneg) ? AUTONEG_ENABLE : AUTONEG_DISABLE;142 143 /* MDI-X => 1; MDI => 0 */144 if ((hw->media_type == e1000_media_type_copper) &&145 netif_carrier_ok(netdev))146 cmd->base.eth_tp_mdix = (!!adapter->phy_info.mdix_mode ?147 ETH_TP_MDI_X : ETH_TP_MDI);148 else149 cmd->base.eth_tp_mdix = ETH_TP_MDI_INVALID;150 151 if (hw->mdix == AUTO_ALL_MODES)152 cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO;153 else154 cmd->base.eth_tp_mdix_ctrl = hw->mdix;155 156 ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,157 supported);158 ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising,159 advertising);160 161 return 0;162}163 164static int e1000_set_link_ksettings(struct net_device *netdev,165 const struct ethtool_link_ksettings *cmd)166{167 struct e1000_adapter *adapter = netdev_priv(netdev);168 struct e1000_hw *hw = &adapter->hw;169 u32 advertising;170 171 ethtool_convert_link_mode_to_legacy_u32(&advertising,172 cmd->link_modes.advertising);173 174 /* MDI setting is only allowed when autoneg enabled because175 * some hardware doesn't allow MDI setting when speed or176 * duplex is forced.177 */178 if (cmd->base.eth_tp_mdix_ctrl) {179 if (hw->media_type != e1000_media_type_copper)180 return -EOPNOTSUPP;181 182 if ((cmd->base.eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO) &&183 (cmd->base.autoneg != AUTONEG_ENABLE)) {184 e_err(drv, "forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n");185 return -EINVAL;186 }187 }188 189 while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))190 msleep(1);191 192 if (cmd->base.autoneg == AUTONEG_ENABLE) {193 hw->autoneg = 1;194 if (hw->media_type == e1000_media_type_fiber)195 hw->autoneg_advertised = ADVERTISED_1000baseT_Full |196 ADVERTISED_FIBRE |197 ADVERTISED_Autoneg;198 else199 hw->autoneg_advertised = advertising |200 ADVERTISED_TP |201 ADVERTISED_Autoneg;202 } else {203 u32 speed = cmd->base.speed;204 /* calling this overrides forced MDI setting */205 if (e1000_set_spd_dplx(adapter, speed, cmd->base.duplex)) {206 clear_bit(__E1000_RESETTING, &adapter->flags);207 return -EINVAL;208 }209 }210 211 /* MDI-X => 2; MDI => 1; Auto => 3 */212 if (cmd->base.eth_tp_mdix_ctrl) {213 if (cmd->base.eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO)214 hw->mdix = AUTO_ALL_MODES;215 else216 hw->mdix = cmd->base.eth_tp_mdix_ctrl;217 }218 219 /* reset the link */220 221 if (netif_running(adapter->netdev)) {222 e1000_down(adapter);223 e1000_up(adapter);224 } else {225 e1000_reset(adapter);226 }227 clear_bit(__E1000_RESETTING, &adapter->flags);228 return 0;229}230 231static u32 e1000_get_link(struct net_device *netdev)232{233 struct e1000_adapter *adapter = netdev_priv(netdev);234 235 /* If the link is not reported up to netdev, interrupts are disabled,236 * and so the physical link state may have changed since we last237 * looked. Set get_link_status to make sure that the true link238 * state is interrogated, rather than pulling a cached and possibly239 * stale link state from the driver.240 */241 if (!netif_carrier_ok(netdev))242 adapter->hw.get_link_status = 1;243 244 return e1000_has_link(adapter);245}246 247static void e1000_get_pauseparam(struct net_device *netdev,248 struct ethtool_pauseparam *pause)249{250 struct e1000_adapter *adapter = netdev_priv(netdev);251 struct e1000_hw *hw = &adapter->hw;252 253 pause->autoneg =254 (adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE);255 256 if (hw->fc == E1000_FC_RX_PAUSE) {257 pause->rx_pause = 1;258 } else if (hw->fc == E1000_FC_TX_PAUSE) {259 pause->tx_pause = 1;260 } else if (hw->fc == E1000_FC_FULL) {261 pause->rx_pause = 1;262 pause->tx_pause = 1;263 }264}265 266static int e1000_set_pauseparam(struct net_device *netdev,267 struct ethtool_pauseparam *pause)268{269 struct e1000_adapter *adapter = netdev_priv(netdev);270 struct e1000_hw *hw = &adapter->hw;271 int retval = 0;272 273 adapter->fc_autoneg = pause->autoneg;274 275 while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))276 msleep(1);277 278 if (pause->rx_pause && pause->tx_pause)279 hw->fc = E1000_FC_FULL;280 else if (pause->rx_pause && !pause->tx_pause)281 hw->fc = E1000_FC_RX_PAUSE;282 else if (!pause->rx_pause && pause->tx_pause)283 hw->fc = E1000_FC_TX_PAUSE;284 else if (!pause->rx_pause && !pause->tx_pause)285 hw->fc = E1000_FC_NONE;286 287 hw->original_fc = hw->fc;288 289 if (adapter->fc_autoneg == AUTONEG_ENABLE) {290 if (netif_running(adapter->netdev)) {291 e1000_down(adapter);292 e1000_up(adapter);293 } else {294 e1000_reset(adapter);295 }296 } else297 retval = ((hw->media_type == e1000_media_type_fiber) ?298 e1000_setup_link(hw) : e1000_force_mac_fc(hw));299 300 clear_bit(__E1000_RESETTING, &adapter->flags);301 return retval;302}303 304static u32 e1000_get_msglevel(struct net_device *netdev)305{306 struct e1000_adapter *adapter = netdev_priv(netdev);307 308 return adapter->msg_enable;309}310 311static void e1000_set_msglevel(struct net_device *netdev, u32 data)312{313 struct e1000_adapter *adapter = netdev_priv(netdev);314 315 adapter->msg_enable = data;316}317 318static int e1000_get_regs_len(struct net_device *netdev)319{320#define E1000_REGS_LEN 32321 return E1000_REGS_LEN * sizeof(u32);322}323 324static void e1000_get_regs(struct net_device *netdev, struct ethtool_regs *regs,325 void *p)326{327 struct e1000_adapter *adapter = netdev_priv(netdev);328 struct e1000_hw *hw = &adapter->hw;329 u32 *regs_buff = p;330 u16 phy_data;331 332 memset(p, 0, E1000_REGS_LEN * sizeof(u32));333 334 regs->version = (1 << 24) | (hw->revision_id << 16) | hw->device_id;335 336 regs_buff[0] = er32(CTRL);337 regs_buff[1] = er32(STATUS);338 339 regs_buff[2] = er32(RCTL);340 regs_buff[3] = er32(RDLEN);341 regs_buff[4] = er32(RDH);342 regs_buff[5] = er32(RDT);343 regs_buff[6] = er32(RDTR);344 345 regs_buff[7] = er32(TCTL);346 regs_buff[8] = er32(TDLEN);347 regs_buff[9] = er32(TDH);348 regs_buff[10] = er32(TDT);349 regs_buff[11] = er32(TIDV);350 351 regs_buff[12] = hw->phy_type; /* PHY type (IGP=1, M88=0) */352 if (hw->phy_type == e1000_phy_igp) {353 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,354 IGP01E1000_PHY_AGC_A);355 e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_A &356 IGP01E1000_PHY_PAGE_SELECT, &phy_data);357 regs_buff[13] = (u32)phy_data; /* cable length */358 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,359 IGP01E1000_PHY_AGC_B);360 e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_B &361 IGP01E1000_PHY_PAGE_SELECT, &phy_data);362 regs_buff[14] = (u32)phy_data; /* cable length */363 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,364 IGP01E1000_PHY_AGC_C);365 e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_C &366 IGP01E1000_PHY_PAGE_SELECT, &phy_data);367 regs_buff[15] = (u32)phy_data; /* cable length */368 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,369 IGP01E1000_PHY_AGC_D);370 e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_D &371 IGP01E1000_PHY_PAGE_SELECT, &phy_data);372 regs_buff[16] = (u32)phy_data; /* cable length */373 regs_buff[17] = 0; /* extended 10bt distance (not needed) */374 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, 0x0);375 e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_STATUS &376 IGP01E1000_PHY_PAGE_SELECT, &phy_data);377 regs_buff[18] = (u32)phy_data; /* cable polarity */378 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,379 IGP01E1000_PHY_PCS_INIT_REG);380 e1000_read_phy_reg(hw, IGP01E1000_PHY_PCS_INIT_REG &381 IGP01E1000_PHY_PAGE_SELECT, &phy_data);382 regs_buff[19] = (u32)phy_data; /* cable polarity */383 regs_buff[20] = 0; /* polarity correction enabled (always) */384 regs_buff[22] = 0; /* phy receive errors (unavailable) */385 regs_buff[23] = regs_buff[18]; /* mdix mode */386 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, 0x0);387 } else {388 e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, &phy_data);389 regs_buff[13] = (u32)phy_data; /* cable length */390 regs_buff[14] = 0; /* Dummy (to align w/ IGP phy reg dump) */391 regs_buff[15] = 0; /* Dummy (to align w/ IGP phy reg dump) */392 regs_buff[16] = 0; /* Dummy (to align w/ IGP phy reg dump) */393 e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);394 regs_buff[17] = (u32)phy_data; /* extended 10bt distance */395 regs_buff[18] = regs_buff[13]; /* cable polarity */396 regs_buff[19] = 0; /* Dummy (to align w/ IGP phy reg dump) */397 regs_buff[20] = regs_buff[17]; /* polarity correction */398 /* phy receive errors */399 regs_buff[22] = adapter->phy_stats.receive_errors;400 regs_buff[23] = regs_buff[13]; /* mdix mode */401 }402 regs_buff[21] = adapter->phy_stats.idle_errors; /* phy idle errors */403 e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_data);404 regs_buff[24] = (u32)phy_data; /* phy local receiver status */405 regs_buff[25] = regs_buff[24]; /* phy remote receiver status */406 if (hw->mac_type >= e1000_82540 &&407 hw->media_type == e1000_media_type_copper) {408 regs_buff[26] = er32(MANC);409 }410}411 412static int e1000_get_eeprom_len(struct net_device *netdev)413{414 struct e1000_adapter *adapter = netdev_priv(netdev);415 struct e1000_hw *hw = &adapter->hw;416 417 return hw->eeprom.word_size * 2;418}419 420static int e1000_get_eeprom(struct net_device *netdev,421 struct ethtool_eeprom *eeprom, u8 *bytes)422{423 struct e1000_adapter *adapter = netdev_priv(netdev);424 struct e1000_hw *hw = &adapter->hw;425 u16 *eeprom_buff;426 int first_word, last_word;427 int ret_val = 0;428 u16 i;429 430 if (eeprom->len == 0)431 return -EINVAL;432 433 eeprom->magic = hw->vendor_id | (hw->device_id << 16);434 435 first_word = eeprom->offset >> 1;436 last_word = (eeprom->offset + eeprom->len - 1) >> 1;437 438 eeprom_buff = kmalloc_array(last_word - first_word + 1, sizeof(u16),439 GFP_KERNEL);440 if (!eeprom_buff)441 return -ENOMEM;442 443 if (hw->eeprom.type == e1000_eeprom_spi)444 ret_val = e1000_read_eeprom(hw, first_word,445 last_word - first_word + 1,446 eeprom_buff);447 else {448 for (i = 0; i < last_word - first_word + 1; i++) {449 ret_val = e1000_read_eeprom(hw, first_word + i, 1,450 &eeprom_buff[i]);451 if (ret_val)452 break;453 }454 }455 456 /* Device's eeprom is always little-endian, word addressable */457 for (i = 0; i < last_word - first_word + 1; i++)458 le16_to_cpus(&eeprom_buff[i]);459 460 memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1),461 eeprom->len);462 kfree(eeprom_buff);463 464 return ret_val;465}466 467static int e1000_set_eeprom(struct net_device *netdev,468 struct ethtool_eeprom *eeprom, u8 *bytes)469{470 struct e1000_adapter *adapter = netdev_priv(netdev);471 struct e1000_hw *hw = &adapter->hw;472 u16 *eeprom_buff;473 void *ptr;474 int max_len, first_word, last_word, ret_val = 0;475 u16 i;476 477 if (eeprom->len == 0)478 return -EOPNOTSUPP;479 480 if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16)))481 return -EFAULT;482 483 max_len = hw->eeprom.word_size * 2;484 485 first_word = eeprom->offset >> 1;486 last_word = (eeprom->offset + eeprom->len - 1) >> 1;487 eeprom_buff = kmalloc(max_len, GFP_KERNEL);488 if (!eeprom_buff)489 return -ENOMEM;490 491 ptr = (void *)eeprom_buff;492 493 if (eeprom->offset & 1) {494 /* need read/modify/write of first changed EEPROM word495 * only the second byte of the word is being modified496 */497 ret_val = e1000_read_eeprom(hw, first_word, 1,498 &eeprom_buff[0]);499 ptr++;500 }501 if (((eeprom->offset + eeprom->len) & 1) && (ret_val == 0)) {502 /* need read/modify/write of last changed EEPROM word503 * only the first byte of the word is being modified504 */505 ret_val = e1000_read_eeprom(hw, last_word, 1,506 &eeprom_buff[last_word - first_word]);507 }508 509 /* Device's eeprom is always little-endian, word addressable */510 for (i = 0; i < last_word - first_word + 1; i++)511 le16_to_cpus(&eeprom_buff[i]);512 513 memcpy(ptr, bytes, eeprom->len);514 515 for (i = 0; i < last_word - first_word + 1; i++)516 cpu_to_le16s(&eeprom_buff[i]);517 518 ret_val = e1000_write_eeprom(hw, first_word,519 last_word - first_word + 1, eeprom_buff);520 521 /* Update the checksum over the first part of the EEPROM if needed */522 if ((ret_val == 0) && (first_word <= EEPROM_CHECKSUM_REG))523 e1000_update_eeprom_checksum(hw);524 525 kfree(eeprom_buff);526 return ret_val;527}528 529static void e1000_get_drvinfo(struct net_device *netdev,530 struct ethtool_drvinfo *drvinfo)531{532 struct e1000_adapter *adapter = netdev_priv(netdev);533 534 strscpy(drvinfo->driver, e1000_driver_name,535 sizeof(drvinfo->driver));536 537 strscpy(drvinfo->bus_info, pci_name(adapter->pdev),538 sizeof(drvinfo->bus_info));539}540 541static void e1000_get_ringparam(struct net_device *netdev,542 struct ethtool_ringparam *ring,543 struct kernel_ethtool_ringparam *kernel_ring,544 struct netlink_ext_ack *extack)545{546 struct e1000_adapter *adapter = netdev_priv(netdev);547 struct e1000_hw *hw = &adapter->hw;548 e1000_mac_type mac_type = hw->mac_type;549 struct e1000_tx_ring *txdr = adapter->tx_ring;550 struct e1000_rx_ring *rxdr = adapter->rx_ring;551 552 ring->rx_max_pending = (mac_type < e1000_82544) ? E1000_MAX_RXD :553 E1000_MAX_82544_RXD;554 ring->tx_max_pending = (mac_type < e1000_82544) ? E1000_MAX_TXD :555 E1000_MAX_82544_TXD;556 ring->rx_pending = rxdr->count;557 ring->tx_pending = txdr->count;558}559 560static int e1000_set_ringparam(struct net_device *netdev,561 struct ethtool_ringparam *ring,562 struct kernel_ethtool_ringparam *kernel_ring,563 struct netlink_ext_ack *extack)564{565 struct e1000_adapter *adapter = netdev_priv(netdev);566 struct e1000_hw *hw = &adapter->hw;567 e1000_mac_type mac_type = hw->mac_type;568 struct e1000_tx_ring *txdr, *tx_old;569 struct e1000_rx_ring *rxdr, *rx_old;570 int i, err;571 572 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))573 return -EINVAL;574 575 while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))576 msleep(1);577 578 if (netif_running(adapter->netdev))579 e1000_down(adapter);580 581 tx_old = adapter->tx_ring;582 rx_old = adapter->rx_ring;583 584 err = -ENOMEM;585 txdr = kcalloc(adapter->num_tx_queues, sizeof(struct e1000_tx_ring),586 GFP_KERNEL);587 if (!txdr)588 goto err_alloc_tx;589 590 rxdr = kcalloc(adapter->num_rx_queues, sizeof(struct e1000_rx_ring),591 GFP_KERNEL);592 if (!rxdr)593 goto err_alloc_rx;594 595 adapter->tx_ring = txdr;596 adapter->rx_ring = rxdr;597 598 rxdr->count = max(ring->rx_pending, (u32)E1000_MIN_RXD);599 rxdr->count = min(rxdr->count, (u32)(mac_type < e1000_82544 ?600 E1000_MAX_RXD : E1000_MAX_82544_RXD));601 rxdr->count = ALIGN(rxdr->count, REQ_RX_DESCRIPTOR_MULTIPLE);602 txdr->count = max(ring->tx_pending, (u32)E1000_MIN_TXD);603 txdr->count = min(txdr->count, (u32)(mac_type < e1000_82544 ?604 E1000_MAX_TXD : E1000_MAX_82544_TXD));605 txdr->count = ALIGN(txdr->count, REQ_TX_DESCRIPTOR_MULTIPLE);606 607 for (i = 0; i < adapter->num_tx_queues; i++)608 txdr[i].count = txdr->count;609 for (i = 0; i < adapter->num_rx_queues; i++)610 rxdr[i].count = rxdr->count;611 612 err = 0;613 if (netif_running(adapter->netdev)) {614 /* Try to get new resources before deleting old */615 err = e1000_setup_all_rx_resources(adapter);616 if (err)617 goto err_setup_rx;618 err = e1000_setup_all_tx_resources(adapter);619 if (err)620 goto err_setup_tx;621 622 /* save the new, restore the old in order to free it,623 * then restore the new back again624 */625 626 adapter->rx_ring = rx_old;627 adapter->tx_ring = tx_old;628 e1000_free_all_rx_resources(adapter);629 e1000_free_all_tx_resources(adapter);630 adapter->rx_ring = rxdr;631 adapter->tx_ring = txdr;632 err = e1000_up(adapter);633 }634 kfree(tx_old);635 kfree(rx_old);636 637 clear_bit(__E1000_RESETTING, &adapter->flags);638 return err;639 640err_setup_tx:641 e1000_free_all_rx_resources(adapter);642err_setup_rx:643 adapter->rx_ring = rx_old;644 adapter->tx_ring = tx_old;645 kfree(rxdr);646err_alloc_rx:647 kfree(txdr);648err_alloc_tx:649 if (netif_running(adapter->netdev))650 e1000_up(adapter);651 clear_bit(__E1000_RESETTING, &adapter->flags);652 return err;653}654 655static bool reg_pattern_test(struct e1000_adapter *adapter, u64 *data, int reg,656 u32 mask, u32 write)657{658 struct e1000_hw *hw = &adapter->hw;659 static const u32 test[] = {660 0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF661 };662 u8 __iomem *address = hw->hw_addr + reg;663 u32 read;664 int i;665 666 for (i = 0; i < ARRAY_SIZE(test); i++) {667 writel(write & test[i], address);668 read = readl(address);669 if (read != (write & test[i] & mask)) {670 e_err(drv, "pattern test reg %04X failed: "671 "got 0x%08X expected 0x%08X\n",672 reg, read, (write & test[i] & mask));673 *data = reg;674 return true;675 }676 }677 return false;678}679 680static bool reg_set_and_check(struct e1000_adapter *adapter, u64 *data, int reg,681 u32 mask, u32 write)682{683 struct e1000_hw *hw = &adapter->hw;684 u8 __iomem *address = hw->hw_addr + reg;685 u32 read;686 687 writel(write & mask, address);688 read = readl(address);689 if ((read & mask) != (write & mask)) {690 e_err(drv, "set/check reg %04X test failed: "691 "got 0x%08X expected 0x%08X\n",692 reg, (read & mask), (write & mask));693 *data = reg;694 return true;695 }696 return false;697}698 699#define REG_PATTERN_TEST(reg, mask, write) \700 do { \701 if (reg_pattern_test(adapter, data, \702 (hw->mac_type >= e1000_82543) \703 ? E1000_##reg : E1000_82542_##reg, \704 mask, write)) \705 return 1; \706 } while (0)707 708#define REG_SET_AND_CHECK(reg, mask, write) \709 do { \710 if (reg_set_and_check(adapter, data, \711 (hw->mac_type >= e1000_82543) \712 ? E1000_##reg : E1000_82542_##reg, \713 mask, write)) \714 return 1; \715 } while (0)716 717static int e1000_reg_test(struct e1000_adapter *adapter, u64 *data)718{719 u32 value, before, after;720 u32 i, toggle;721 struct e1000_hw *hw = &adapter->hw;722 723 /* The status register is Read Only, so a write should fail.724 * Some bits that get toggled are ignored.725 */726 727 /* there are several bits on newer hardware that are r/w */728 toggle = 0xFFFFF833;729 730 before = er32(STATUS);731 value = (er32(STATUS) & toggle);732 ew32(STATUS, toggle);733 after = er32(STATUS) & toggle;734 if (value != after) {735 e_err(drv, "failed STATUS register test got: "736 "0x%08X expected: 0x%08X\n", after, value);737 *data = 1;738 return 1;739 }740 /* restore previous status */741 ew32(STATUS, before);742 743 REG_PATTERN_TEST(FCAL, 0xFFFFFFFF, 0xFFFFFFFF);744 REG_PATTERN_TEST(FCAH, 0x0000FFFF, 0xFFFFFFFF);745 REG_PATTERN_TEST(FCT, 0x0000FFFF, 0xFFFFFFFF);746 REG_PATTERN_TEST(VET, 0x0000FFFF, 0xFFFFFFFF);747 748 REG_PATTERN_TEST(RDTR, 0x0000FFFF, 0xFFFFFFFF);749 REG_PATTERN_TEST(RDBAH, 0xFFFFFFFF, 0xFFFFFFFF);750 REG_PATTERN_TEST(RDLEN, 0x000FFF80, 0x000FFFFF);751 REG_PATTERN_TEST(RDH, 0x0000FFFF, 0x0000FFFF);752 REG_PATTERN_TEST(RDT, 0x0000FFFF, 0x0000FFFF);753 REG_PATTERN_TEST(FCRTH, 0x0000FFF8, 0x0000FFF8);754 REG_PATTERN_TEST(FCTTV, 0x0000FFFF, 0x0000FFFF);755 REG_PATTERN_TEST(TIPG, 0x3FFFFFFF, 0x3FFFFFFF);756 REG_PATTERN_TEST(TDBAH, 0xFFFFFFFF, 0xFFFFFFFF);757 REG_PATTERN_TEST(TDLEN, 0x000FFF80, 0x000FFFFF);758 759 REG_SET_AND_CHECK(RCTL, 0xFFFFFFFF, 0x00000000);760 761 before = 0x06DFB3FE;762 REG_SET_AND_CHECK(RCTL, before, 0x003FFFFB);763 REG_SET_AND_CHECK(TCTL, 0xFFFFFFFF, 0x00000000);764 765 if (hw->mac_type >= e1000_82543) {766 REG_SET_AND_CHECK(RCTL, before, 0xFFFFFFFF);767 REG_PATTERN_TEST(RDBAL, 0xFFFFFFF0, 0xFFFFFFFF);768 REG_PATTERN_TEST(TXCW, 0xC000FFFF, 0x0000FFFF);769 REG_PATTERN_TEST(TDBAL, 0xFFFFFFF0, 0xFFFFFFFF);770 REG_PATTERN_TEST(TIDV, 0x0000FFFF, 0x0000FFFF);771 value = E1000_RAR_ENTRIES;772 for (i = 0; i < value; i++) {773 REG_PATTERN_TEST(RA + (((i << 1) + 1) << 2),774 0x8003FFFF, 0xFFFFFFFF);775 }776 } else {777 REG_SET_AND_CHECK(RCTL, 0xFFFFFFFF, 0x01FFFFFF);778 REG_PATTERN_TEST(RDBAL, 0xFFFFF000, 0xFFFFFFFF);779 REG_PATTERN_TEST(TXCW, 0x0000FFFF, 0x0000FFFF);780 REG_PATTERN_TEST(TDBAL, 0xFFFFF000, 0xFFFFFFFF);781 }782 783 value = E1000_MC_TBL_SIZE;784 for (i = 0; i < value; i++)785 REG_PATTERN_TEST(MTA + (i << 2), 0xFFFFFFFF, 0xFFFFFFFF);786 787 *data = 0;788 return 0;789}790 791static int e1000_eeprom_test(struct e1000_adapter *adapter, u64 *data)792{793 struct e1000_hw *hw = &adapter->hw;794 u16 temp;795 u16 checksum = 0;796 u16 i;797 798 *data = 0;799 /* Read and add up the contents of the EEPROM */800 for (i = 0; i < (EEPROM_CHECKSUM_REG + 1); i++) {801 if ((e1000_read_eeprom(hw, i, 1, &temp)) < 0) {802 *data = 1;803 break;804 }805 checksum += temp;806 }807 808 /* If Checksum is not Correct return error else test passed */809 if ((checksum != (u16)EEPROM_SUM) && !(*data))810 *data = 2;811 812 return *data;813}814 815static irqreturn_t e1000_test_intr(int irq, void *data)816{817 struct net_device *netdev = (struct net_device *)data;818 struct e1000_adapter *adapter = netdev_priv(netdev);819 struct e1000_hw *hw = &adapter->hw;820 821 adapter->test_icr |= er32(ICR);822 823 return IRQ_HANDLED;824}825 826static int e1000_intr_test(struct e1000_adapter *adapter, u64 *data)827{828 struct net_device *netdev = adapter->netdev;829 u32 mask, i = 0;830 bool shared_int = true;831 u32 irq = adapter->pdev->irq;832 struct e1000_hw *hw = &adapter->hw;833 834 *data = 0;835 836 /* NOTE: we don't test MSI interrupts here, yet837 * Hook up test interrupt handler just for this test838 */839 if (!request_irq(irq, e1000_test_intr, IRQF_PROBE_SHARED, netdev->name,840 netdev))841 shared_int = false;842 else if (request_irq(irq, e1000_test_intr, IRQF_SHARED,843 netdev->name, netdev)) {844 *data = 1;845 return -1;846 }847 e_info(hw, "testing %s interrupt\n", (shared_int ?848 "shared" : "unshared"));849 850 /* Disable all the interrupts */851 ew32(IMC, 0xFFFFFFFF);852 E1000_WRITE_FLUSH();853 msleep(10);854 855 /* Test each interrupt */856 for (; i < 10; i++) {857 /* Interrupt to test */858 mask = 1 << i;859 860 if (!shared_int) {861 /* Disable the interrupt to be reported in862 * the cause register and then force the same863 * interrupt and see if one gets posted. If864 * an interrupt was posted to the bus, the865 * test failed.866 */867 adapter->test_icr = 0;868 ew32(IMC, mask);869 ew32(ICS, mask);870 E1000_WRITE_FLUSH();871 msleep(10);872 873 if (adapter->test_icr & mask) {874 *data = 3;875 break;876 }877 }878 879 /* Enable the interrupt to be reported in880 * the cause register and then force the same881 * interrupt and see if one gets posted. If882 * an interrupt was not posted to the bus, the883 * test failed.884 */885 adapter->test_icr = 0;886 ew32(IMS, mask);887 ew32(ICS, mask);888 E1000_WRITE_FLUSH();889 msleep(10);890 891 if (!(adapter->test_icr & mask)) {892 *data = 4;893 break;894 }895 896 if (!shared_int) {897 /* Disable the other interrupts to be reported in898 * the cause register and then force the other899 * interrupts and see if any get posted. If900 * an interrupt was posted to the bus, the901 * test failed.902 */903 adapter->test_icr = 0;904 ew32(IMC, ~mask & 0x00007FFF);905 ew32(ICS, ~mask & 0x00007FFF);906 E1000_WRITE_FLUSH();907 msleep(10);908 909 if (adapter->test_icr) {910 *data = 5;911 break;912 }913 }914 }915 916 /* Disable all the interrupts */917 ew32(IMC, 0xFFFFFFFF);918 E1000_WRITE_FLUSH();919 msleep(10);920 921 /* Unhook test interrupt handler */922 free_irq(irq, netdev);923 924 return *data;925}926 927static void e1000_free_desc_rings(struct e1000_adapter *adapter)928{929 struct e1000_tx_ring *txdr = &adapter->test_tx_ring;930 struct e1000_rx_ring *rxdr = &adapter->test_rx_ring;931 struct pci_dev *pdev = adapter->pdev;932 int i;933 934 if (txdr->desc && txdr->buffer_info) {935 for (i = 0; i < txdr->count; i++) {936 if (txdr->buffer_info[i].dma)937 dma_unmap_single(&pdev->dev,938 txdr->buffer_info[i].dma,939 txdr->buffer_info[i].length,940 DMA_TO_DEVICE);941 dev_kfree_skb(txdr->buffer_info[i].skb);942 }943 }944 945 if (rxdr->desc && rxdr->buffer_info) {946 for (i = 0; i < rxdr->count; i++) {947 if (rxdr->buffer_info[i].dma)948 dma_unmap_single(&pdev->dev,949 rxdr->buffer_info[i].dma,950 E1000_RXBUFFER_2048,951 DMA_FROM_DEVICE);952 kfree(rxdr->buffer_info[i].rxbuf.data);953 }954 }955 956 if (txdr->desc) {957 dma_free_coherent(&pdev->dev, txdr->size, txdr->desc,958 txdr->dma);959 txdr->desc = NULL;960 }961 if (rxdr->desc) {962 dma_free_coherent(&pdev->dev, rxdr->size, rxdr->desc,963 rxdr->dma);964 rxdr->desc = NULL;965 }966 967 kfree(txdr->buffer_info);968 txdr->buffer_info = NULL;969 kfree(rxdr->buffer_info);970 rxdr->buffer_info = NULL;971}972 973static int e1000_setup_desc_rings(struct e1000_adapter *adapter)974{975 struct e1000_hw *hw = &adapter->hw;976 struct e1000_tx_ring *txdr = &adapter->test_tx_ring;977 struct e1000_rx_ring *rxdr = &adapter->test_rx_ring;978 struct pci_dev *pdev = adapter->pdev;979 u32 rctl;980 int i, ret_val;981 982 /* Setup Tx descriptor ring and Tx buffers */983 984 if (!txdr->count)985 txdr->count = E1000_DEFAULT_TXD;986 987 txdr->buffer_info = kcalloc(txdr->count, sizeof(struct e1000_tx_buffer),988 GFP_KERNEL);989 if (!txdr->buffer_info) {990 ret_val = 1;991 goto err_nomem;992 }993 994 txdr->size = txdr->count * sizeof(struct e1000_tx_desc);995 txdr->size = ALIGN(txdr->size, 4096);996 txdr->desc = dma_alloc_coherent(&pdev->dev, txdr->size, &txdr->dma,997 GFP_KERNEL);998 if (!txdr->desc) {999 ret_val = 2;1000 goto err_nomem;1001 }1002 txdr->next_to_use = txdr->next_to_clean = 0;1003 1004 ew32(TDBAL, ((u64)txdr->dma & 0x00000000FFFFFFFF));1005 ew32(TDBAH, ((u64)txdr->dma >> 32));1006 ew32(TDLEN, txdr->count * sizeof(struct e1000_tx_desc));1007 ew32(TDH, 0);1008 ew32(TDT, 0);1009 ew32(TCTL, E1000_TCTL_PSP | E1000_TCTL_EN |1010 E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT |1011 E1000_FDX_COLLISION_DISTANCE << E1000_COLD_SHIFT);1012 1013 for (i = 0; i < txdr->count; i++) {1014 struct e1000_tx_desc *tx_desc = E1000_TX_DESC(*txdr, i);1015 struct sk_buff *skb;1016 unsigned int size = 1024;1017 1018 skb = alloc_skb(size, GFP_KERNEL);1019 if (!skb) {1020 ret_val = 3;1021 goto err_nomem;1022 }1023 skb_put(skb, size);1024 txdr->buffer_info[i].skb = skb;1025 txdr->buffer_info[i].length = skb->len;1026 txdr->buffer_info[i].dma =1027 dma_map_single(&pdev->dev, skb->data, skb->len,1028 DMA_TO_DEVICE);1029 if (dma_mapping_error(&pdev->dev, txdr->buffer_info[i].dma)) {1030 ret_val = 4;1031 goto err_nomem;1032 }1033 tx_desc->buffer_addr = cpu_to_le64(txdr->buffer_info[i].dma);1034 tx_desc->lower.data = cpu_to_le32(skb->len);1035 tx_desc->lower.data |= cpu_to_le32(E1000_TXD_CMD_EOP |1036 E1000_TXD_CMD_IFCS |1037 E1000_TXD_CMD_RPS);1038 tx_desc->upper.data = 0;1039 }1040 1041 /* Setup Rx descriptor ring and Rx buffers */1042 1043 if (!rxdr->count)1044 rxdr->count = E1000_DEFAULT_RXD;1045 1046 rxdr->buffer_info = kcalloc(rxdr->count, sizeof(struct e1000_rx_buffer),1047 GFP_KERNEL);1048 if (!rxdr->buffer_info) {1049 ret_val = 5;1050 goto err_nomem;1051 }1052 1053 rxdr->size = rxdr->count * sizeof(struct e1000_rx_desc);1054 rxdr->desc = dma_alloc_coherent(&pdev->dev, rxdr->size, &rxdr->dma,1055 GFP_KERNEL);1056 if (!rxdr->desc) {1057 ret_val = 6;1058 goto err_nomem;1059 }1060 rxdr->next_to_use = rxdr->next_to_clean = 0;1061 1062 rctl = er32(RCTL);1063 ew32(RCTL, rctl & ~E1000_RCTL_EN);1064 ew32(RDBAL, ((u64)rxdr->dma & 0xFFFFFFFF));1065 ew32(RDBAH, ((u64)rxdr->dma >> 32));1066 ew32(RDLEN, rxdr->size);1067 ew32(RDH, 0);1068 ew32(RDT, 0);1069 rctl = E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_SZ_2048 |1070 E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF |1071 (hw->mc_filter_type << E1000_RCTL_MO_SHIFT);1072 ew32(RCTL, rctl);1073 1074 for (i = 0; i < rxdr->count; i++) {1075 struct e1000_rx_desc *rx_desc = E1000_RX_DESC(*rxdr, i);1076 u8 *buf;1077 1078 buf = kzalloc(E1000_RXBUFFER_2048 + NET_SKB_PAD + NET_IP_ALIGN,1079 GFP_KERNEL);1080 if (!buf) {1081 ret_val = 7;1082 goto err_nomem;1083 }1084 rxdr->buffer_info[i].rxbuf.data = buf;1085 1086 rxdr->buffer_info[i].dma =1087 dma_map_single(&pdev->dev,1088 buf + NET_SKB_PAD + NET_IP_ALIGN,1089 E1000_RXBUFFER_2048, DMA_FROM_DEVICE);1090 if (dma_mapping_error(&pdev->dev, rxdr->buffer_info[i].dma)) {1091 ret_val = 8;1092 goto err_nomem;1093 }1094 rx_desc->buffer_addr = cpu_to_le64(rxdr->buffer_info[i].dma);1095 }1096 1097 return 0;1098 1099err_nomem:1100 e1000_free_desc_rings(adapter);1101 return ret_val;1102}1103 1104static void e1000_phy_disable_receiver(struct e1000_adapter *adapter)1105{1106 struct e1000_hw *hw = &adapter->hw;1107 1108 /* Write out to PHY registers 29 and 30 to disable the Receiver. */1109 e1000_write_phy_reg(hw, 29, 0x001F);1110 e1000_write_phy_reg(hw, 30, 0x8FFC);1111 e1000_write_phy_reg(hw, 29, 0x001A);1112 e1000_write_phy_reg(hw, 30, 0x8FF0);1113}1114 1115static void e1000_phy_reset_clk_and_crs(struct e1000_adapter *adapter)1116{1117 struct e1000_hw *hw = &adapter->hw;1118 u16 phy_reg;1119 1120 /* Because we reset the PHY above, we need to re-force TX_CLK in the1121 * Extended PHY Specific Control Register to 25MHz clock. This1122 * value defaults back to a 2.5MHz clock when the PHY is reset.1123 */1124 e1000_read_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_reg);1125 phy_reg |= M88E1000_EPSCR_TX_CLK_25;1126 e1000_write_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, phy_reg);1127 1128 /* In addition, because of the s/w reset above, we need to enable1129 * CRS on TX. This must be set for both full and half duplex1130 * operation.1131 */1132 e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_reg);1133 phy_reg |= M88E1000_PSCR_ASSERT_CRS_ON_TX;1134 e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_reg);1135}1136 1137static int e1000_nonintegrated_phy_loopback(struct e1000_adapter *adapter)1138{1139 struct e1000_hw *hw = &adapter->hw;1140 u32 ctrl_reg;1141 u16 phy_reg;1142 1143 /* Setup the Device Control Register for PHY loopback test. */1144 1145 ctrl_reg = er32(CTRL);1146 ctrl_reg |= (E1000_CTRL_ILOS | /* Invert Loss-Of-Signal */1147 E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */1148 E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */1149 E1000_CTRL_SPD_1000 | /* Force Speed to 1000 */1150 E1000_CTRL_FD); /* Force Duplex to FULL */1151 1152 ew32(CTRL, ctrl_reg);1153 1154 /* Read the PHY Specific Control Register (0x10) */1155 e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_reg);1156 1157 /* Clear Auto-Crossover bits in PHY Specific Control Register1158 * (bits 6:5).1159 */1160 phy_reg &= ~M88E1000_PSCR_AUTO_X_MODE;1161 e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_reg);1162 1163 /* Perform software reset on the PHY */1164 e1000_phy_reset(hw);1165 1166 /* Have to setup TX_CLK and TX_CRS after software reset */1167 e1000_phy_reset_clk_and_crs(adapter);1168 1169 e1000_write_phy_reg(hw, PHY_CTRL, 0x8100);1170 1171 /* Wait for reset to complete. */1172 udelay(500);1173 1174 /* Have to setup TX_CLK and TX_CRS after software reset */1175 e1000_phy_reset_clk_and_crs(adapter);1176 1177 /* Write out to PHY registers 29 and 30 to disable the Receiver. */1178 e1000_phy_disable_receiver(adapter);1179 1180 /* Set the loopback bit in the PHY control register. */1181 e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg);1182 phy_reg |= MII_CR_LOOPBACK;1183 e1000_write_phy_reg(hw, PHY_CTRL, phy_reg);1184 1185 /* Setup TX_CLK and TX_CRS one more time. */1186 e1000_phy_reset_clk_and_crs(adapter);1187 1188 /* Check Phy Configuration */1189 e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg);1190 if (phy_reg != 0x4100)1191 return 9;1192 1193 e1000_read_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_reg);1194 if (phy_reg != 0x0070)1195 return 10;1196 1197 e1000_read_phy_reg(hw, 29, &phy_reg);1198 if (phy_reg != 0x001A)1199 return 11;1200 1201 return 0;1202}1203 1204static int e1000_integrated_phy_loopback(struct e1000_adapter *adapter)1205{1206 struct e1000_hw *hw = &adapter->hw;1207 u32 ctrl_reg = 0;1208 u32 stat_reg = 0;1209 1210 hw->autoneg = false;1211 1212 if (hw->phy_type == e1000_phy_m88) {1213 /* Auto-MDI/MDIX Off */1214 e1000_write_phy_reg(hw,1215 M88E1000_PHY_SPEC_CTRL, 0x0808);1216 /* reset to update Auto-MDI/MDIX */1217 e1000_write_phy_reg(hw, PHY_CTRL, 0x9140);1218 /* autoneg off */1219 e1000_write_phy_reg(hw, PHY_CTRL, 0x8140);1220 }1221 1222 ctrl_reg = er32(CTRL);1223 1224 /* force 1000, set loopback */1225 e1000_write_phy_reg(hw, PHY_CTRL, 0x4140);1226 1227 /* Now set up the MAC to the same speed/duplex as the PHY. */1228 ctrl_reg = er32(CTRL);1229 ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */1230 ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */1231 E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */1232 E1000_CTRL_SPD_1000 |/* Force Speed to 1000 */1233 E1000_CTRL_FD); /* Force Duplex to FULL */1234 1235 if (hw->media_type == e1000_media_type_copper &&1236 hw->phy_type == e1000_phy_m88)1237 ctrl_reg |= E1000_CTRL_ILOS; /* Invert Loss of Signal */1238 else {1239 /* Set the ILOS bit on the fiber Nic is half1240 * duplex link is detected.1241 */1242 stat_reg = er32(STATUS);1243 if ((stat_reg & E1000_STATUS_FD) == 0)1244 ctrl_reg |= (E1000_CTRL_ILOS | E1000_CTRL_SLU);1245 }1246 1247 ew32(CTRL, ctrl_reg);1248 1249 /* Disable the receiver on the PHY so when a cable is plugged in, the1250 * PHY does not begin to autoneg when a cable is reconnected to the NIC.1251 */1252 if (hw->phy_type == e1000_phy_m88)1253 e1000_phy_disable_receiver(adapter);1254 1255 udelay(500);1256 1257 return 0;1258}1259 1260static int e1000_set_phy_loopback(struct e1000_adapter *adapter)1261{1262 struct e1000_hw *hw = &adapter->hw;1263 u16 phy_reg = 0;1264 u16 count = 0;1265 1266 switch (hw->mac_type) {1267 case e1000_82543:1268 if (hw->media_type == e1000_media_type_copper) {1269 /* Attempt to setup Loopback mode on Non-integrated PHY.1270 * Some PHY registers get corrupted at random, so1271 * attempt this 10 times.1272 */1273 while (e1000_nonintegrated_phy_loopback(adapter) &&1274 count++ < 10);1275 if (count < 11)1276 return 0;1277 }1278 break;1279 1280 case e1000_82544:1281 case e1000_82540:1282 case e1000_82545:1283 case e1000_82545_rev_3:1284 case e1000_82546:1285 case e1000_82546_rev_3:1286 case e1000_82541:1287 case e1000_82541_rev_2:1288 case e1000_82547:1289 case e1000_82547_rev_2:1290 return e1000_integrated_phy_loopback(adapter);1291 default:1292 /* Default PHY loopback work is to read the MII1293 * control register and assert bit 14 (loopback mode).1294 */1295 e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg);1296 phy_reg |= MII_CR_LOOPBACK;1297 e1000_write_phy_reg(hw, PHY_CTRL, phy_reg);1298 return 0;1299 }1300 1301 return 8;1302}1303 1304static int e1000_setup_loopback_test(struct e1000_adapter *adapter)1305{1306 struct e1000_hw *hw = &adapter->hw;1307 u32 rctl;1308 1309 if (hw->media_type == e1000_media_type_fiber ||1310 hw->media_type == e1000_media_type_internal_serdes) {1311 switch (hw->mac_type) {1312 case e1000_82545:1313 case e1000_82546:1314 case e1000_82545_rev_3:1315 case e1000_82546_rev_3:1316 return e1000_set_phy_loopback(adapter);1317 default:1318 rctl = er32(RCTL);1319 rctl |= E1000_RCTL_LBM_TCVR;1320 ew32(RCTL, rctl);1321 return 0;1322 }1323 } else if (hw->media_type == e1000_media_type_copper) {1324 return e1000_set_phy_loopback(adapter);1325 }1326 1327 return 7;1328}1329 1330static void e1000_loopback_cleanup(struct e1000_adapter *adapter)1331{1332 struct e1000_hw *hw = &adapter->hw;1333 u32 rctl;1334 u16 phy_reg;1335 1336 rctl = er32(RCTL);1337 rctl &= ~(E1000_RCTL_LBM_TCVR | E1000_RCTL_LBM_MAC);1338 ew32(RCTL, rctl);1339 1340 switch (hw->mac_type) {1341 case e1000_82545:1342 case e1000_82546:1343 case e1000_82545_rev_3:1344 case e1000_82546_rev_3:1345 default:1346 hw->autoneg = true;1347 e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg);1348 if (phy_reg & MII_CR_LOOPBACK) {1349 phy_reg &= ~MII_CR_LOOPBACK;1350 e1000_write_phy_reg(hw, PHY_CTRL, phy_reg);1351 e1000_phy_reset(hw);1352 }1353 break;1354 }1355}1356 1357static void e1000_create_lbtest_frame(struct sk_buff *skb,1358 unsigned int frame_size)1359{1360 memset(skb->data, 0xFF, frame_size);1361 frame_size &= ~1;1362 memset(&skb->data[frame_size / 2], 0xAA, frame_size / 2 - 1);1363 skb->data[frame_size / 2 + 10] = 0xBE;1364 skb->data[frame_size / 2 + 12] = 0xAF;1365}1366 1367static int e1000_check_lbtest_frame(const unsigned char *data,1368 unsigned int frame_size)1369{1370 frame_size &= ~1;1371 if (*(data + 3) == 0xFF) {1372 if ((*(data + frame_size / 2 + 10) == 0xBE) &&1373 (*(data + frame_size / 2 + 12) == 0xAF)) {1374 return 0;1375 }1376 }1377 return 13;1378}1379 1380static int e1000_run_loopback_test(struct e1000_adapter *adapter)1381{1382 struct e1000_hw *hw = &adapter->hw;1383 struct e1000_tx_ring *txdr = &adapter->test_tx_ring;1384 struct e1000_rx_ring *rxdr = &adapter->test_rx_ring;1385 struct pci_dev *pdev = adapter->pdev;1386 int i, j, k, l, lc, good_cnt, ret_val = 0;1387 unsigned long time;1388 1389 ew32(RDT, rxdr->count - 1);1390 1391 /* Calculate the loop count based on the largest descriptor ring1392 * The idea is to wrap the largest ring a number of times using 641393 * send/receive pairs during each loop1394 */1395 1396 if (rxdr->count <= txdr->count)1397 lc = ((txdr->count / 64) * 2) + 1;1398 else1399 lc = ((rxdr->count / 64) * 2) + 1;1400 1401 k = l = 0;1402 for (j = 0; j <= lc; j++) { /* loop count loop */1403 for (i = 0; i < 64; i++) { /* send the packets */1404 e1000_create_lbtest_frame(txdr->buffer_info[i].skb,1405 1024);1406 dma_sync_single_for_device(&pdev->dev,1407 txdr->buffer_info[k].dma,1408 txdr->buffer_info[k].length,1409 DMA_TO_DEVICE);1410 if (unlikely(++k == txdr->count))1411 k = 0;1412 }1413 ew32(TDT, k);1414 E1000_WRITE_FLUSH();1415 msleep(200);1416 time = jiffies; /* set the start time for the receive */1417 good_cnt = 0;1418 do { /* receive the sent packets */1419 dma_sync_single_for_cpu(&pdev->dev,1420 rxdr->buffer_info[l].dma,1421 E1000_RXBUFFER_2048,1422 DMA_FROM_DEVICE);1423 1424 ret_val = e1000_check_lbtest_frame(1425 rxdr->buffer_info[l].rxbuf.data +1426 NET_SKB_PAD + NET_IP_ALIGN,1427 1024);1428 if (!ret_val)1429 good_cnt++;1430 if (unlikely(++l == rxdr->count))1431 l = 0;1432 /* time + 20 msecs (200 msecs on 2.4) is more than1433 * enough time to complete the receives, if it's1434 * exceeded, break and error off1435 */1436 } while (good_cnt < 64 && time_after(time + 20, jiffies));1437 1438 if (good_cnt != 64) {1439 ret_val = 13; /* ret_val is the same as mis-compare */1440 break;1441 }1442 if (time_after_eq(jiffies, time + 2)) {1443 ret_val = 14; /* error code for time out error */1444 break;1445 }1446 } /* end loop count loop */1447 return ret_val;1448}1449 1450static int e1000_loopback_test(struct e1000_adapter *adapter, u64 *data)1451{1452 *data = e1000_setup_desc_rings(adapter);1453 if (*data)1454 goto out;1455 *data = e1000_setup_loopback_test(adapter);1456 if (*data)1457 goto err_loopback;1458 *data = e1000_run_loopback_test(adapter);1459 e1000_loopback_cleanup(adapter);1460 1461err_loopback:1462 e1000_free_desc_rings(adapter);1463out:1464 return *data;1465}1466 1467static int e1000_link_test(struct e1000_adapter *adapter, u64 *data)1468{1469 struct e1000_hw *hw = &adapter->hw;1470 *data = 0;1471 if (hw->media_type == e1000_media_type_internal_serdes) {1472 int i = 0;1473 1474 hw->serdes_has_link = false;1475 1476 /* On some blade server designs, link establishment1477 * could take as long as 2-3 minutes1478 */1479 do {1480 e1000_check_for_link(hw);1481 if (hw->serdes_has_link)1482 return *data;1483 msleep(20);1484 } while (i++ < 3750);1485 1486 *data = 1;1487 } else {1488 e1000_check_for_link(hw);1489 if (hw->autoneg) /* if auto_neg is set wait for it */1490 msleep(4000);1491 1492 if (!(er32(STATUS) & E1000_STATUS_LU))1493 *data = 1;1494 }1495 return *data;1496}1497 1498static int e1000_get_sset_count(struct net_device *netdev, int sset)1499{1500 switch (sset) {1501 case ETH_SS_TEST:1502 return E1000_TEST_LEN;1503 case ETH_SS_STATS:1504 return E1000_STATS_LEN;1505 default:1506 return -EOPNOTSUPP;1507 }1508}1509 1510static void e1000_diag_test(struct net_device *netdev,1511 struct ethtool_test *eth_test, u64 *data)1512{1513 struct e1000_adapter *adapter = netdev_priv(netdev);1514 struct e1000_hw *hw = &adapter->hw;1515 bool if_running = netif_running(netdev);1516 1517 set_bit(__E1000_TESTING, &adapter->flags);1518 if (eth_test->flags == ETH_TEST_FL_OFFLINE) {1519 /* Offline tests */1520 1521 /* save speed, duplex, autoneg settings */1522 u16 autoneg_advertised = hw->autoneg_advertised;1523 u8 forced_speed_duplex = hw->forced_speed_duplex;1524 u8 autoneg = hw->autoneg;1525 1526 e_info(hw, "offline testing starting\n");1527 1528 /* Link test performed before hardware reset so autoneg doesn't1529 * interfere with test result1530 */1531 if (e1000_link_test(adapter, &data[4]))1532 eth_test->flags |= ETH_TEST_FL_FAILED;1533 1534 if (if_running)1535 /* indicate we're in test mode */1536 e1000_close(netdev);1537 else1538 e1000_reset(adapter);1539 1540 if (e1000_reg_test(adapter, &data[0]))1541 eth_test->flags |= ETH_TEST_FL_FAILED;1542 1543 e1000_reset(adapter);1544 if (e1000_eeprom_test(adapter, &data[1]))1545 eth_test->flags |= ETH_TEST_FL_FAILED;1546 1547 e1000_reset(adapter);1548 if (e1000_intr_test(adapter, &data[2]))1549 eth_test->flags |= ETH_TEST_FL_FAILED;1550 1551 e1000_reset(adapter);1552 /* make sure the phy is powered up */1553 e1000_power_up_phy(adapter);1554 if (e1000_loopback_test(adapter, &data[3]))1555 eth_test->flags |= ETH_TEST_FL_FAILED;1556 1557 /* restore speed, duplex, autoneg settings */1558 hw->autoneg_advertised = autoneg_advertised;1559 hw->forced_speed_duplex = forced_speed_duplex;1560 hw->autoneg = autoneg;1561 1562 e1000_reset(adapter);1563 clear_bit(__E1000_TESTING, &adapter->flags);1564 if (if_running)1565 e1000_open(netdev);1566 } else {1567 e_info(hw, "online testing starting\n");1568 /* Online tests */1569 if (e1000_link_test(adapter, &data[4]))1570 eth_test->flags |= ETH_TEST_FL_FAILED;1571 1572 /* Online tests aren't run; pass by default */1573 data[0] = 0;1574 data[1] = 0;1575 data[2] = 0;1576 data[3] = 0;1577 1578 clear_bit(__E1000_TESTING, &adapter->flags);1579 }1580 msleep_interruptible(4 * 1000);1581}1582 1583static int e1000_wol_exclusion(struct e1000_adapter *adapter,1584 struct ethtool_wolinfo *wol)1585{1586 struct e1000_hw *hw = &adapter->hw;1587 int retval = 1; /* fail by default */1588 1589 switch (hw->device_id) {1590 case E1000_DEV_ID_82542:1591 case E1000_DEV_ID_82543GC_FIBER:1592 case E1000_DEV_ID_82543GC_COPPER:1593 case E1000_DEV_ID_82544EI_FIBER:1594 case E1000_DEV_ID_82546EB_QUAD_COPPER:1595 case E1000_DEV_ID_82545EM_FIBER:1596 case E1000_DEV_ID_82545EM_COPPER:1597 case E1000_DEV_ID_82546GB_QUAD_COPPER:1598 case E1000_DEV_ID_82546GB_PCIE:1599 /* these don't support WoL at all */1600 wol->supported = 0;1601 break;1602 case E1000_DEV_ID_82546EB_FIBER:1603 case E1000_DEV_ID_82546GB_FIBER:1604 /* Wake events not supported on port B */1605 if (er32(STATUS) & E1000_STATUS_FUNC_1) {1606 wol->supported = 0;1607 break;1608 }1609 /* return success for non excluded adapter ports */1610 retval = 0;1611 break;1612 case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3:1613 /* quad port adapters only support WoL on port A */1614 if (!adapter->quad_port_a) {1615 wol->supported = 0;1616 break;1617 }1618 /* return success for non excluded adapter ports */1619 retval = 0;1620 break;1621 default:1622 /* dual port cards only support WoL on port A from now on1623 * unless it was enabled in the eeprom for port B1624 * so exclude FUNC_1 ports from having WoL enabled1625 */1626 if (er32(STATUS) & E1000_STATUS_FUNC_1 &&1627 !adapter->eeprom_wol) {1628 wol->supported = 0;1629 break;1630 }1631 1632 retval = 0;1633 }1634 1635 return retval;1636}1637 1638static void e1000_get_wol(struct net_device *netdev,1639 struct ethtool_wolinfo *wol)1640{1641 struct e1000_adapter *adapter = netdev_priv(netdev);1642 struct e1000_hw *hw = &adapter->hw;1643 1644 wol->supported = WAKE_UCAST | WAKE_MCAST | WAKE_BCAST | WAKE_MAGIC;1645 wol->wolopts = 0;1646 1647 /* this function will set ->supported = 0 and return 1 if wol is not1648 * supported by this hardware1649 */1650 if (e1000_wol_exclusion(adapter, wol) ||1651 !device_can_wakeup(&adapter->pdev->dev))1652 return;1653 1654 /* apply any specific unsupported masks here */1655 switch (hw->device_id) {1656 case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3:1657 /* KSP3 does not support UCAST wake-ups */1658 wol->supported &= ~WAKE_UCAST;1659 1660 if (adapter->wol & E1000_WUFC_EX)1661 e_err(drv, "Interface does not support directed "1662 "(unicast) frame wake-up packets\n");1663 break;1664 default:1665 break;1666 }1667 1668 if (adapter->wol & E1000_WUFC_EX)1669 wol->wolopts |= WAKE_UCAST;1670 if (adapter->wol & E1000_WUFC_MC)1671 wol->wolopts |= WAKE_MCAST;1672 if (adapter->wol & E1000_WUFC_BC)1673 wol->wolopts |= WAKE_BCAST;1674 if (adapter->wol & E1000_WUFC_MAG)1675 wol->wolopts |= WAKE_MAGIC;1676}1677 1678static int e1000_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)1679{1680 struct e1000_adapter *adapter = netdev_priv(netdev);1681 struct e1000_hw *hw = &adapter->hw;1682 1683 if (wol->wolopts & (WAKE_PHY | WAKE_ARP | WAKE_MAGICSECURE))1684 return -EOPNOTSUPP;1685 1686 if (e1000_wol_exclusion(adapter, wol) ||1687 !device_can_wakeup(&adapter->pdev->dev))1688 return wol->wolopts ? -EOPNOTSUPP : 0;1689 1690 switch (hw->device_id) {1691 case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3:1692 if (wol->wolopts & WAKE_UCAST) {1693 e_err(drv, "Interface does not support directed "1694 "(unicast) frame wake-up packets\n");1695 return -EOPNOTSUPP;1696 }1697 break;1698 default:1699 break;1700 }1701 1702 /* these settings will always override what we currently have */1703 adapter->wol = 0;1704 1705 if (wol->wolopts & WAKE_UCAST)1706 adapter->wol |= E1000_WUFC_EX;1707 if (wol->wolopts & WAKE_MCAST)1708 adapter->wol |= E1000_WUFC_MC;1709 if (wol->wolopts & WAKE_BCAST)1710 adapter->wol |= E1000_WUFC_BC;1711 if (wol->wolopts & WAKE_MAGIC)1712 adapter->wol |= E1000_WUFC_MAG;1713 1714 device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);1715 1716 return 0;1717}1718 1719static int e1000_set_phys_id(struct net_device *netdev,1720 enum ethtool_phys_id_state state)1721{1722 struct e1000_adapter *adapter = netdev_priv(netdev);1723 struct e1000_hw *hw = &adapter->hw;1724 1725 switch (state) {1726 case ETHTOOL_ID_ACTIVE:1727 e1000_setup_led(hw);1728 return 2;1729 1730 case ETHTOOL_ID_ON:1731 e1000_led_on(hw);1732 break;1733 1734 case ETHTOOL_ID_OFF:1735 e1000_led_off(hw);1736 break;1737 1738 case ETHTOOL_ID_INACTIVE:1739 e1000_cleanup_led(hw);1740 }1741 1742 return 0;1743}1744 1745static int e1000_get_coalesce(struct net_device *netdev,1746 struct ethtool_coalesce *ec,1747 struct kernel_ethtool_coalesce *kernel_coal,1748 struct netlink_ext_ack *extack)1749{1750 struct e1000_adapter *adapter = netdev_priv(netdev);1751 1752 if (adapter->hw.mac_type < e1000_82545)1753 return -EOPNOTSUPP;1754 1755 if (adapter->itr_setting <= 4)1756 ec->rx_coalesce_usecs = adapter->itr_setting;1757 else1758 ec->rx_coalesce_usecs = 1000000 / adapter->itr_setting;1759 1760 return 0;1761}1762 1763static int e1000_set_coalesce(struct net_device *netdev,1764 struct ethtool_coalesce *ec,1765 struct kernel_ethtool_coalesce *kernel_coal,1766 struct netlink_ext_ack *extack)1767{1768 struct e1000_adapter *adapter = netdev_priv(netdev);1769 struct e1000_hw *hw = &adapter->hw;1770 1771 if (hw->mac_type < e1000_82545)1772 return -EOPNOTSUPP;1773 1774 if ((ec->rx_coalesce_usecs > E1000_MAX_ITR_USECS) ||1775 ((ec->rx_coalesce_usecs > 4) &&1776 (ec->rx_coalesce_usecs < E1000_MIN_ITR_USECS)) ||1777 (ec->rx_coalesce_usecs == 2))1778 return -EINVAL;1779 1780 if (ec->rx_coalesce_usecs == 4) {1781 adapter->itr = adapter->itr_setting = 4;1782 } else if (ec->rx_coalesce_usecs <= 3) {1783 adapter->itr = 20000;1784 adapter->itr_setting = ec->rx_coalesce_usecs;1785 } else {1786 adapter->itr = (1000000 / ec->rx_coalesce_usecs);1787 adapter->itr_setting = adapter->itr & ~3;1788 }1789 1790 if (adapter->itr_setting != 0)1791 ew32(ITR, 1000000000 / (adapter->itr * 256));1792 else1793 ew32(ITR, 0);1794 1795 return 0;1796}1797 1798static int e1000_nway_reset(struct net_device *netdev)1799{1800 struct e1000_adapter *adapter = netdev_priv(netdev);1801 1802 if (netif_running(netdev))1803 e1000_reinit_locked(adapter);1804 return 0;1805}1806 1807static void e1000_get_ethtool_stats(struct net_device *netdev,1808 struct ethtool_stats *stats, u64 *data)1809{1810 struct e1000_adapter *adapter = netdev_priv(netdev);1811 int i;1812 const struct e1000_stats *stat = e1000_gstrings_stats;1813 1814 e1000_update_stats(adapter);1815 for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++, stat++) {1816 char *p;1817 1818 switch (stat->type) {1819 case NETDEV_STATS:1820 p = (char *)netdev + stat->stat_offset;1821 break;1822 case E1000_STATS:1823 p = (char *)adapter + stat->stat_offset;1824 break;1825 default:1826 netdev_WARN_ONCE(netdev, "Invalid E1000 stat type: %u index %d\n",1827 stat->type, i);1828 continue;1829 }1830 1831 if (stat->sizeof_stat == sizeof(u64))1832 data[i] = *(u64 *)p;1833 else1834 data[i] = *(u32 *)p;1835 }1836/* BUG_ON(i != E1000_STATS_LEN); */1837}1838 1839static void e1000_get_strings(struct net_device *netdev, u32 stringset,1840 u8 *data)1841{1842 u8 *p = data;1843 int i;1844 1845 switch (stringset) {1846 case ETH_SS_TEST:1847 memcpy(data, e1000_gstrings_test, sizeof(e1000_gstrings_test));1848 break;1849 case ETH_SS_STATS:1850 for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {1851 memcpy(p, e1000_gstrings_stats[i].stat_string,1852 ETH_GSTRING_LEN);1853 p += ETH_GSTRING_LEN;1854 }1855 /* BUG_ON(p - data != E1000_STATS_LEN * ETH_GSTRING_LEN); */1856 break;1857 }1858}1859 1860static const struct ethtool_ops e1000_ethtool_ops = {1861 .supported_coalesce_params = ETHTOOL_COALESCE_RX_USECS,1862 .get_drvinfo = e1000_get_drvinfo,1863 .get_regs_len = e1000_get_regs_len,1864 .get_regs = e1000_get_regs,1865 .get_wol = e1000_get_wol,1866 .set_wol = e1000_set_wol,1867 .get_msglevel = e1000_get_msglevel,1868 .set_msglevel = e1000_set_msglevel,1869 .nway_reset = e1000_nway_reset,1870 .get_link = e1000_get_link,1871 .get_eeprom_len = e1000_get_eeprom_len,1872 .get_eeprom = e1000_get_eeprom,1873 .set_eeprom = e1000_set_eeprom,1874 .get_ringparam = e1000_get_ringparam,1875 .set_ringparam = e1000_set_ringparam,1876 .get_pauseparam = e1000_get_pauseparam,1877 .set_pauseparam = e1000_set_pauseparam,1878 .self_test = e1000_diag_test,1879 .get_strings = e1000_get_strings,1880 .set_phys_id = e1000_set_phys_id,1881 .get_ethtool_stats = e1000_get_ethtool_stats,1882 .get_sset_count = e1000_get_sset_count,1883 .get_coalesce = e1000_get_coalesce,1884 .set_coalesce = e1000_set_coalesce,1885 .get_ts_info = ethtool_op_get_ts_info,1886 .get_link_ksettings = e1000_get_link_ksettings,1887 .set_link_ksettings = e1000_set_link_ksettings,1888};1889 1890void e1000_set_ethtool_ops(struct net_device *netdev)1891{1892 netdev->ethtool_ops = &e1000_ethtool_ops;1893}1894