1/* Intel PRO/1000 Linux driver
   2 * Copyright(c) 1999 - 2015 Intel Corporation.
   3 *
   4 * This program is free software; you can redistribute it and/or modify it
   5 * under the terms and conditions of the GNU General Public License,
   6 * version 2, as published by the Free Software Foundation.
   7 *
   8 * This program is distributed in the hope it will be useful, but WITHOUT
   9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  10 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  11 * more details.
  12 *
  13 * The full GNU General Public License is included in this distribution in
  14 * the file called "COPYING".
  15 *
  16 * Contact Information:
  17 * Linux NICS <linux.nics@intel.com>
  18 * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  19 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  20 */
  21
  22/* ethtool support for e1000 */
  23
  24#include <linux/netdevice.h>
  25#include <linux/interrupt.h>
  26#include <linux/ethtool.h>
  27#include <linux/pci.h>
  28#include <linux/slab.h>
  29#include <linux/delay.h>
  30#include <linux/vmalloc.h>
  31#include <linux/pm_runtime.h>
  32
  33#include "e1000.h"
  34
  35enum { NETDEV_STATS, E1000_STATS };
  36
  37struct e1000_stats {
  38	char stat_string[ETH_GSTRING_LEN];
  39	int type;
  40	int sizeof_stat;
  41	int stat_offset;
  42};
  43
  44#define E1000_STAT(str, m) { \
  45		.stat_string = str, \
  46		.type = E1000_STATS, \
  47		.sizeof_stat = sizeof(((struct e1000_adapter *)0)->m), \
  48		.stat_offset = offsetof(struct e1000_adapter, m) }
  49#define E1000_NETDEV_STAT(str, m) { \
  50		.stat_string = str, \
  51		.type = NETDEV_STATS, \
  52		.sizeof_stat = sizeof(((struct rtnl_link_stats64 *)0)->m), \
  53		.stat_offset = offsetof(struct rtnl_link_stats64, m) }
  54
  55static const struct e1000_stats e1000_gstrings_stats[] = {
  56	E1000_STAT("rx_packets", stats.gprc),
  57	E1000_STAT("tx_packets", stats.gptc),
  58	E1000_STAT("rx_bytes", stats.gorc),
  59	E1000_STAT("tx_bytes", stats.gotc),
  60	E1000_STAT("rx_broadcast", stats.bprc),
  61	E1000_STAT("tx_broadcast", stats.bptc),
  62	E1000_STAT("rx_multicast", stats.mprc),
  63	E1000_STAT("tx_multicast", stats.mptc),
  64	E1000_NETDEV_STAT("rx_errors", rx_errors),
  65	E1000_NETDEV_STAT("tx_errors", tx_errors),
  66	E1000_NETDEV_STAT("tx_dropped", tx_dropped),
  67	E1000_STAT("multicast", stats.mprc),
  68	E1000_STAT("collisions", stats.colc),
  69	E1000_NETDEV_STAT("rx_length_errors", rx_length_errors),
  70	E1000_NETDEV_STAT("rx_over_errors", rx_over_errors),
  71	E1000_STAT("rx_crc_errors", stats.crcerrs),
  72	E1000_NETDEV_STAT("rx_frame_errors", rx_frame_errors),
  73	E1000_STAT("rx_no_buffer_count", stats.rnbc),
  74	E1000_STAT("rx_missed_errors", stats.mpc),
  75	E1000_STAT("tx_aborted_errors", stats.ecol),
  76	E1000_STAT("tx_carrier_errors", stats.tncrs),
  77	E1000_NETDEV_STAT("tx_fifo_errors", tx_fifo_errors),
  78	E1000_NETDEV_STAT("tx_heartbeat_errors", tx_heartbeat_errors),
  79	E1000_STAT("tx_window_errors", stats.latecol),
  80	E1000_STAT("tx_abort_late_coll", stats.latecol),
  81	E1000_STAT("tx_deferred_ok", stats.dc),
  82	E1000_STAT("tx_single_coll_ok", stats.scc),
  83	E1000_STAT("tx_multi_coll_ok", stats.mcc),
  84	E1000_STAT("tx_timeout_count", tx_timeout_count),
  85	E1000_STAT("tx_restart_queue", restart_queue),
  86	E1000_STAT("rx_long_length_errors", stats.roc),
  87	E1000_STAT("rx_short_length_errors", stats.ruc),
  88	E1000_STAT("rx_align_errors", stats.algnerrc),
  89	E1000_STAT("tx_tcp_seg_good", stats.tsctc),
  90	E1000_STAT("tx_tcp_seg_failed", stats.tsctfc),
  91	E1000_STAT("rx_flow_control_xon", stats.xonrxc),
  92	E1000_STAT("rx_flow_control_xoff", stats.xoffrxc),
  93	E1000_STAT("tx_flow_control_xon", stats.xontxc),
  94	E1000_STAT("tx_flow_control_xoff", stats.xofftxc),
  95	E1000_STAT("rx_csum_offload_good", hw_csum_good),
  96	E1000_STAT("rx_csum_offload_errors", hw_csum_err),
  97	E1000_STAT("rx_header_split", rx_hdr_split),
  98	E1000_STAT("alloc_rx_buff_failed", alloc_rx_buff_failed),
  99	E1000_STAT("tx_smbus", stats.mgptc),
 100	E1000_STAT("rx_smbus", stats.mgprc),
 101	E1000_STAT("dropped_smbus", stats.mgpdc),
 102	E1000_STAT("rx_dma_failed", rx_dma_failed),
 103	E1000_STAT("tx_dma_failed", tx_dma_failed),
 104	E1000_STAT("rx_hwtstamp_cleared", rx_hwtstamp_cleared),
 105	E1000_STAT("uncorr_ecc_errors", uncorr_errors),
 106	E1000_STAT("corr_ecc_errors", corr_errors),
 107	E1000_STAT("tx_hwtstamp_timeouts", tx_hwtstamp_timeouts),
 
 108};
 109
 110#define E1000_GLOBAL_STATS_LEN	ARRAY_SIZE(e1000_gstrings_stats)
 111#define E1000_STATS_LEN (E1000_GLOBAL_STATS_LEN)
 112static const char e1000_gstrings_test[][ETH_GSTRING_LEN] = {
 113	"Register test  (offline)", "Eeprom test    (offline)",
 114	"Interrupt test (offline)", "Loopback test  (offline)",
 115	"Link test   (on/offline)"
 116};
 117
 118#define E1000_TEST_LEN ARRAY_SIZE(e1000_gstrings_test)
 119
 120static int e1000_get_settings(struct net_device *netdev,
 121			      struct ethtool_cmd *ecmd)
 122{
 123	struct e1000_adapter *adapter = netdev_priv(netdev);
 124	struct e1000_hw *hw = &adapter->hw;
 125	u32 speed;
 126
 127	if (hw->phy.media_type == e1000_media_type_copper) {
 128		ecmd->supported = (SUPPORTED_10baseT_Half |
 129				   SUPPORTED_10baseT_Full |
 130				   SUPPORTED_100baseT_Half |
 131				   SUPPORTED_100baseT_Full |
 132				   SUPPORTED_1000baseT_Full |
 133				   SUPPORTED_Autoneg |
 134				   SUPPORTED_TP);
 135		if (hw->phy.type == e1000_phy_ife)
 136			ecmd->supported &= ~SUPPORTED_1000baseT_Full;
 137		ecmd->advertising = ADVERTISED_TP;
 138
 139		if (hw->mac.autoneg == 1) {
 140			ecmd->advertising |= ADVERTISED_Autoneg;
 141			/* the e1000 autoneg seems to match ethtool nicely */
 142			ecmd->advertising |= hw->phy.autoneg_advertised;
 143		}
 144
 145		ecmd->port = PORT_TP;
 146		ecmd->phy_address = hw->phy.addr;
 147		ecmd->transceiver = XCVR_INTERNAL;
 148
 149	} else {
 150		ecmd->supported   = (SUPPORTED_1000baseT_Full |
 151				     SUPPORTED_FIBRE |
 152				     SUPPORTED_Autoneg);
 153
 154		ecmd->advertising = (ADVERTISED_1000baseT_Full |
 155				     ADVERTISED_FIBRE |
 156				     ADVERTISED_Autoneg);
 157
 158		ecmd->port = PORT_FIBRE;
 159		ecmd->transceiver = XCVR_EXTERNAL;
 160	}
 161
 162	speed = SPEED_UNKNOWN;
 163	ecmd->duplex = DUPLEX_UNKNOWN;
 164
 165	if (netif_running(netdev)) {
 166		if (netif_carrier_ok(netdev)) {
 167			speed = adapter->link_speed;
 168			ecmd->duplex = adapter->link_duplex - 1;
 169		}
 170	} else if (!pm_runtime_suspended(netdev->dev.parent)) {
 171		u32 status = er32(STATUS);
 172
 173		if (status & E1000_STATUS_LU) {
 174			if (status & E1000_STATUS_SPEED_1000)
 175				speed = SPEED_1000;
 176			else if (status & E1000_STATUS_SPEED_100)
 177				speed = SPEED_100;
 178			else
 179				speed = SPEED_10;
 180
 181			if (status & E1000_STATUS_FD)
 182				ecmd->duplex = DUPLEX_FULL;
 183			else
 184				ecmd->duplex = DUPLEX_HALF;
 185		}
 186	}
 187
 188	ethtool_cmd_speed_set(ecmd, speed);
 189	ecmd->autoneg = ((hw->phy.media_type == e1000_media_type_fiber) ||
 190			 hw->mac.autoneg) ? AUTONEG_ENABLE : AUTONEG_DISABLE;
 191
 192	/* MDI-X => 2; MDI =>1; Invalid =>0 */
 193	if ((hw->phy.media_type == e1000_media_type_copper) &&
 194	    netif_carrier_ok(netdev))
 195		ecmd->eth_tp_mdix = hw->phy.is_mdix ? ETH_TP_MDI_X : ETH_TP_MDI;
 
 196	else
 197		ecmd->eth_tp_mdix = ETH_TP_MDI_INVALID;
 198
 199	if (hw->phy.mdix == AUTO_ALL_MODES)
 200		ecmd->eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO;
 201	else
 202		ecmd->eth_tp_mdix_ctrl = hw->phy.mdix;
 
 
 
 
 
 
 
 
 203
 204	return 0;
 205}
 206
 207static int e1000_set_spd_dplx(struct e1000_adapter *adapter, u32 spd, u8 dplx)
 208{
 209	struct e1000_mac_info *mac = &adapter->hw.mac;
 210
 211	mac->autoneg = 0;
 212
 213	/* Make sure dplx is at most 1 bit and lsb of speed is not set
 214	 * for the switch() below to work
 215	 */
 216	if ((spd & 1) || (dplx & ~1))
 217		goto err_inval;
 218
 219	/* Fiber NICs only allow 1000 gbps Full duplex */
 220	if ((adapter->hw.phy.media_type == e1000_media_type_fiber) &&
 221	    (spd != SPEED_1000) && (dplx != DUPLEX_FULL)) {
 222		goto err_inval;
 223	}
 224
 225	switch (spd + dplx) {
 226	case SPEED_10 + DUPLEX_HALF:
 227		mac->forced_speed_duplex = ADVERTISE_10_HALF;
 228		break;
 229	case SPEED_10 + DUPLEX_FULL:
 230		mac->forced_speed_duplex = ADVERTISE_10_FULL;
 231		break;
 232	case SPEED_100 + DUPLEX_HALF:
 233		mac->forced_speed_duplex = ADVERTISE_100_HALF;
 234		break;
 235	case SPEED_100 + DUPLEX_FULL:
 236		mac->forced_speed_duplex = ADVERTISE_100_FULL;
 237		break;
 238	case SPEED_1000 + DUPLEX_FULL:
 239		mac->autoneg = 1;
 240		adapter->hw.phy.autoneg_advertised = ADVERTISE_1000_FULL;
 
 
 
 
 
 241		break;
 242	case SPEED_1000 + DUPLEX_HALF:	/* not supported */
 243	default:
 244		goto err_inval;
 245	}
 246
 247	/* clear MDI, MDI(-X) override is only allowed when autoneg enabled */
 248	adapter->hw.phy.mdix = AUTO_ALL_MODES;
 249
 250	return 0;
 251
 252err_inval:
 253	e_err("Unsupported Speed/Duplex configuration\n");
 254	return -EINVAL;
 255}
 256
 257static int e1000_set_settings(struct net_device *netdev,
 258			      struct ethtool_cmd *ecmd)
 259{
 260	struct e1000_adapter *adapter = netdev_priv(netdev);
 261	struct e1000_hw *hw = &adapter->hw;
 262	int ret_val = 0;
 
 
 
 
 263
 264	pm_runtime_get_sync(netdev->dev.parent);
 265
 266	/* When SoL/IDER sessions are active, autoneg/speed/duplex
 267	 * cannot be changed
 268	 */
 269	if (hw->phy.ops.check_reset_block &&
 270	    hw->phy.ops.check_reset_block(hw)) {
 271		e_err("Cannot change link characteristics when SoL/IDER is active.\n");
 272		ret_val = -EINVAL;
 273		goto out;
 274	}
 275
 276	/* MDI setting is only allowed when autoneg enabled because
 277	 * some hardware doesn't allow MDI setting when speed or
 278	 * duplex is forced.
 279	 */
 280	if (ecmd->eth_tp_mdix_ctrl) {
 281		if (hw->phy.media_type != e1000_media_type_copper) {
 282			ret_val = -EOPNOTSUPP;
 283			goto out;
 284		}
 285
 286		if ((ecmd->eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO) &&
 287		    (ecmd->autoneg != AUTONEG_ENABLE)) {
 288			e_err("forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n");
 289			ret_val = -EINVAL;
 290			goto out;
 291		}
 292	}
 293
 294	while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
 295		usleep_range(1000, 2000);
 296
 297	if (ecmd->autoneg == AUTONEG_ENABLE) {
 298		hw->mac.autoneg = 1;
 299		if (hw->phy.media_type == e1000_media_type_fiber)
 300			hw->phy.autoneg_advertised = ADVERTISED_1000baseT_Full |
 301			    ADVERTISED_FIBRE | ADVERTISED_Autoneg;
 302		else
 303			hw->phy.autoneg_advertised = ecmd->advertising |
 304			    ADVERTISED_TP | ADVERTISED_Autoneg;
 305		ecmd->advertising = hw->phy.autoneg_advertised;
 306		if (adapter->fc_autoneg)
 307			hw->fc.requested_mode = e1000_fc_default;
 308	} else {
 309		u32 speed = ethtool_cmd_speed(ecmd);
 310		/* calling this overrides forced MDI setting */
 311		if (e1000_set_spd_dplx(adapter, speed, ecmd->duplex)) {
 312			ret_val = -EINVAL;
 313			goto out;
 314		}
 315	}
 316
 317	/* MDI-X => 2; MDI => 1; Auto => 3 */
 318	if (ecmd->eth_tp_mdix_ctrl) {
 319		/* fix up the value for auto (3 => 0) as zero is mapped
 320		 * internally to auto
 321		 */
 322		if (ecmd->eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO)
 323			hw->phy.mdix = AUTO_ALL_MODES;
 324		else
 325			hw->phy.mdix = ecmd->eth_tp_mdix_ctrl;
 326	}
 327
 328	/* reset the link */
 329	if (netif_running(adapter->netdev)) {
 330		e1000e_down(adapter, true);
 331		e1000e_up(adapter);
 332	} else {
 333		e1000e_reset(adapter);
 334	}
 335
 336out:
 337	pm_runtime_put_sync(netdev->dev.parent);
 338	clear_bit(__E1000_RESETTING, &adapter->state);
 339	return ret_val;
 340}
 341
 342static void e1000_get_pauseparam(struct net_device *netdev,
 343				 struct ethtool_pauseparam *pause)
 344{
 345	struct e1000_adapter *adapter = netdev_priv(netdev);
 346	struct e1000_hw *hw = &adapter->hw;
 347
 348	pause->autoneg =
 349	    (adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE);
 350
 351	if (hw->fc.current_mode == e1000_fc_rx_pause) {
 352		pause->rx_pause = 1;
 353	} else if (hw->fc.current_mode == e1000_fc_tx_pause) {
 354		pause->tx_pause = 1;
 355	} else if (hw->fc.current_mode == e1000_fc_full) {
 356		pause->rx_pause = 1;
 357		pause->tx_pause = 1;
 358	}
 359}
 360
 361static int e1000_set_pauseparam(struct net_device *netdev,
 362				struct ethtool_pauseparam *pause)
 363{
 364	struct e1000_adapter *adapter = netdev_priv(netdev);
 365	struct e1000_hw *hw = &adapter->hw;
 366	int retval = 0;
 367
 368	adapter->fc_autoneg = pause->autoneg;
 369
 370	while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
 371		usleep_range(1000, 2000);
 372
 373	pm_runtime_get_sync(netdev->dev.parent);
 374
 375	if (adapter->fc_autoneg == AUTONEG_ENABLE) {
 376		hw->fc.requested_mode = e1000_fc_default;
 377		if (netif_running(adapter->netdev)) {
 378			e1000e_down(adapter, true);
 379			e1000e_up(adapter);
 380		} else {
 381			e1000e_reset(adapter);
 382		}
 383	} else {
 384		if (pause->rx_pause && pause->tx_pause)
 385			hw->fc.requested_mode = e1000_fc_full;
 386		else if (pause->rx_pause && !pause->tx_pause)
 387			hw->fc.requested_mode = e1000_fc_rx_pause;
 388		else if (!pause->rx_pause && pause->tx_pause)
 389			hw->fc.requested_mode = e1000_fc_tx_pause;
 390		else if (!pause->rx_pause && !pause->tx_pause)
 391			hw->fc.requested_mode = e1000_fc_none;
 392
 393		hw->fc.current_mode = hw->fc.requested_mode;
 394
 395		if (hw->phy.media_type == e1000_media_type_fiber) {
 396			retval = hw->mac.ops.setup_link(hw);
 397			/* implicit goto out */
 398		} else {
 399			retval = e1000e_force_mac_fc(hw);
 400			if (retval)
 401				goto out;
 402			e1000e_set_fc_watermarks(hw);
 403		}
 404	}
 405
 406out:
 407	pm_runtime_put_sync(netdev->dev.parent);
 408	clear_bit(__E1000_RESETTING, &adapter->state);
 409	return retval;
 410}
 411
 412static u32 e1000_get_msglevel(struct net_device *netdev)
 413{
 414	struct e1000_adapter *adapter = netdev_priv(netdev);
 415	return adapter->msg_enable;
 416}
 417
 418static void e1000_set_msglevel(struct net_device *netdev, u32 data)
 419{
 420	struct e1000_adapter *adapter = netdev_priv(netdev);
 421	adapter->msg_enable = data;
 422}
 423
 424static int e1000_get_regs_len(struct net_device __always_unused *netdev)
 425{
 426#define E1000_REGS_LEN 32	/* overestimate */
 427	return E1000_REGS_LEN * sizeof(u32);
 428}
 429
 430static void e1000_get_regs(struct net_device *netdev,
 431			   struct ethtool_regs *regs, void *p)
 432{
 433	struct e1000_adapter *adapter = netdev_priv(netdev);
 434	struct e1000_hw *hw = &adapter->hw;
 435	u32 *regs_buff = p;
 436	u16 phy_data;
 437
 438	pm_runtime_get_sync(netdev->dev.parent);
 439
 440	memset(p, 0, E1000_REGS_LEN * sizeof(u32));
 441
 442	regs->version = (1 << 24) | (adapter->pdev->revision << 16) |
 443	    adapter->pdev->device;
 
 444
 445	regs_buff[0] = er32(CTRL);
 446	regs_buff[1] = er32(STATUS);
 447
 448	regs_buff[2] = er32(RCTL);
 449	regs_buff[3] = er32(RDLEN(0));
 450	regs_buff[4] = er32(RDH(0));
 451	regs_buff[5] = er32(RDT(0));
 452	regs_buff[6] = er32(RDTR);
 453
 454	regs_buff[7] = er32(TCTL);
 455	regs_buff[8] = er32(TDLEN(0));
 456	regs_buff[9] = er32(TDH(0));
 457	regs_buff[10] = er32(TDT(0));
 458	regs_buff[11] = er32(TIDV);
 459
 460	regs_buff[12] = adapter->hw.phy.type;	/* PHY type (IGP=1, M88=0) */
 461
 462	/* ethtool doesn't use anything past this point, so all this
 463	 * code is likely legacy junk for apps that may or may not exist
 464	 */
 465	if (hw->phy.type == e1000_phy_m88) {
 466		e1e_rphy(hw, M88E1000_PHY_SPEC_STATUS, &phy_data);
 467		regs_buff[13] = (u32)phy_data; /* cable length */
 468		regs_buff[14] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 469		regs_buff[15] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 470		regs_buff[16] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 471		e1e_rphy(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);
 472		regs_buff[17] = (u32)phy_data; /* extended 10bt distance */
 473		regs_buff[18] = regs_buff[13]; /* cable polarity */
 474		regs_buff[19] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 475		regs_buff[20] = regs_buff[17]; /* polarity correction */
 476		/* phy receive errors */
 477		regs_buff[22] = adapter->phy_stats.receive_errors;
 478		regs_buff[23] = regs_buff[13]; /* mdix mode */
 479	}
 480	regs_buff[21] = 0;	/* was idle_errors */
 481	e1e_rphy(hw, MII_STAT1000, &phy_data);
 482	regs_buff[24] = (u32)phy_data;	/* phy local receiver status */
 483	regs_buff[25] = regs_buff[24];	/* phy remote receiver status */
 484
 485	pm_runtime_put_sync(netdev->dev.parent);
 486}
 487
 488static int e1000_get_eeprom_len(struct net_device *netdev)
 489{
 490	struct e1000_adapter *adapter = netdev_priv(netdev);
 491	return adapter->hw.nvm.word_size * 2;
 492}
 493
 494static int e1000_get_eeprom(struct net_device *netdev,
 495			    struct ethtool_eeprom *eeprom, u8 *bytes)
 496{
 497	struct e1000_adapter *adapter = netdev_priv(netdev);
 498	struct e1000_hw *hw = &adapter->hw;
 499	u16 *eeprom_buff;
 500	int first_word;
 501	int last_word;
 502	int ret_val = 0;
 503	u16 i;
 504
 505	if (eeprom->len == 0)
 506		return -EINVAL;
 507
 508	eeprom->magic = adapter->pdev->vendor | (adapter->pdev->device << 16);
 509
 510	first_word = eeprom->offset >> 1;
 511	last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 512
 513	eeprom_buff = kmalloc(sizeof(u16) * (last_word - first_word + 1),
 514			      GFP_KERNEL);
 515	if (!eeprom_buff)
 516		return -ENOMEM;
 517
 518	pm_runtime_get_sync(netdev->dev.parent);
 519
 520	if (hw->nvm.type == e1000_nvm_eeprom_spi) {
 521		ret_val = e1000_read_nvm(hw, first_word,
 522					 last_word - first_word + 1,
 523					 eeprom_buff);
 524	} else {
 525		for (i = 0; i < last_word - first_word + 1; i++) {
 526			ret_val = e1000_read_nvm(hw, first_word + i, 1,
 527						 &eeprom_buff[i]);
 528			if (ret_val)
 529				break;
 530		}
 531	}
 532
 533	pm_runtime_put_sync(netdev->dev.parent);
 534
 535	if (ret_val) {
 536		/* a read error occurred, throw away the result */
 537		memset(eeprom_buff, 0xff, sizeof(u16) *
 538		       (last_word - first_word + 1));
 539	} else {
 540		/* Device's eeprom is always little-endian, word addressable */
 541		for (i = 0; i < last_word - first_word + 1; i++)
 542			le16_to_cpus(&eeprom_buff[i]);
 543	}
 544
 545	memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1), eeprom->len);
 546	kfree(eeprom_buff);
 547
 548	return ret_val;
 549}
 550
 551static int e1000_set_eeprom(struct net_device *netdev,
 552			    struct ethtool_eeprom *eeprom, u8 *bytes)
 553{
 554	struct e1000_adapter *adapter = netdev_priv(netdev);
 555	struct e1000_hw *hw = &adapter->hw;
 556	u16 *eeprom_buff;
 557	void *ptr;
 558	int max_len;
 559	int first_word;
 560	int last_word;
 561	int ret_val = 0;
 562	u16 i;
 563
 564	if (eeprom->len == 0)
 565		return -EOPNOTSUPP;
 566
 567	if (eeprom->magic !=
 568	    (adapter->pdev->vendor | (adapter->pdev->device << 16)))
 569		return -EFAULT;
 570
 571	if (adapter->flags & FLAG_READ_ONLY_NVM)
 572		return -EINVAL;
 573
 574	max_len = hw->nvm.word_size * 2;
 575
 576	first_word = eeprom->offset >> 1;
 577	last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 578	eeprom_buff = kmalloc(max_len, GFP_KERNEL);
 579	if (!eeprom_buff)
 580		return -ENOMEM;
 581
 582	ptr = (void *)eeprom_buff;
 583
 584	pm_runtime_get_sync(netdev->dev.parent);
 585
 586	if (eeprom->offset & 1) {
 587		/* need read/modify/write of first changed EEPROM word */
 588		/* only the second byte of the word is being modified */
 589		ret_val = e1000_read_nvm(hw, first_word, 1, &eeprom_buff[0]);
 590		ptr++;
 591	}
 592	if (((eeprom->offset + eeprom->len) & 1) && (!ret_val))
 593		/* need read/modify/write of last changed EEPROM word */
 594		/* only the first byte of the word is being modified */
 595		ret_val = e1000_read_nvm(hw, last_word, 1,
 596					 &eeprom_buff[last_word - first_word]);
 597
 598	if (ret_val)
 599		goto out;
 600
 601	/* Device's eeprom is always little-endian, word addressable */
 602	for (i = 0; i < last_word - first_word + 1; i++)
 603		le16_to_cpus(&eeprom_buff[i]);
 604
 605	memcpy(ptr, bytes, eeprom->len);
 606
 607	for (i = 0; i < last_word - first_word + 1; i++)
 608		cpu_to_le16s(&eeprom_buff[i]);
 609
 610	ret_val = e1000_write_nvm(hw, first_word,
 611				  last_word - first_word + 1, eeprom_buff);
 612
 613	if (ret_val)
 614		goto out;
 615
 616	/* Update the checksum over the first part of the EEPROM if needed
 617	 * and flush shadow RAM for applicable controllers
 618	 */
 619	if ((first_word <= NVM_CHECKSUM_REG) ||
 620	    (hw->mac.type == e1000_82583) ||
 621	    (hw->mac.type == e1000_82574) ||
 622	    (hw->mac.type == e1000_82573))
 623		ret_val = e1000e_update_nvm_checksum(hw);
 624
 625out:
 626	pm_runtime_put_sync(netdev->dev.parent);
 627	kfree(eeprom_buff);
 628	return ret_val;
 629}
 630
 631static void e1000_get_drvinfo(struct net_device *netdev,
 632			      struct ethtool_drvinfo *drvinfo)
 633{
 634	struct e1000_adapter *adapter = netdev_priv(netdev);
 635
 636	strlcpy(drvinfo->driver, e1000e_driver_name, sizeof(drvinfo->driver));
 637	strlcpy(drvinfo->version, e1000e_driver_version,
 638		sizeof(drvinfo->version));
 639
 640	/* EEPROM image version # is reported as firmware version # for
 641	 * PCI-E controllers
 642	 */
 643	snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
 644		 "%d.%d-%d",
 645		 (adapter->eeprom_vers & 0xF000) >> 12,
 646		 (adapter->eeprom_vers & 0x0FF0) >> 4,
 647		 (adapter->eeprom_vers & 0x000F));
 648
 649	strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
 650		sizeof(drvinfo->bus_info));
 651}
 652
 653static void e1000_get_ringparam(struct net_device *netdev,
 654				struct ethtool_ringparam *ring)
 655{
 656	struct e1000_adapter *adapter = netdev_priv(netdev);
 657
 658	ring->rx_max_pending = E1000_MAX_RXD;
 659	ring->tx_max_pending = E1000_MAX_TXD;
 660	ring->rx_pending = adapter->rx_ring_count;
 661	ring->tx_pending = adapter->tx_ring_count;
 662}
 663
 664static int e1000_set_ringparam(struct net_device *netdev,
 665			       struct ethtool_ringparam *ring)
 666{
 667	struct e1000_adapter *adapter = netdev_priv(netdev);
 668	struct e1000_ring *temp_tx = NULL, *temp_rx = NULL;
 669	int err = 0, size = sizeof(struct e1000_ring);
 670	bool set_tx = false, set_rx = false;
 671	u16 new_rx_count, new_tx_count;
 672
 673	if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
 674		return -EINVAL;
 675
 676	new_rx_count = clamp_t(u32, ring->rx_pending, E1000_MIN_RXD,
 677			       E1000_MAX_RXD);
 678	new_rx_count = ALIGN(new_rx_count, REQ_RX_DESCRIPTOR_MULTIPLE);
 679
 680	new_tx_count = clamp_t(u32, ring->tx_pending, E1000_MIN_TXD,
 681			       E1000_MAX_TXD);
 682	new_tx_count = ALIGN(new_tx_count, REQ_TX_DESCRIPTOR_MULTIPLE);
 683
 684	if ((new_tx_count == adapter->tx_ring_count) &&
 685	    (new_rx_count == adapter->rx_ring_count))
 686		/* nothing to do */
 687		return 0;
 688
 689	while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
 690		usleep_range(1000, 2000);
 691
 692	if (!netif_running(adapter->netdev)) {
 693		/* Set counts now and allocate resources during open() */
 694		adapter->tx_ring->count = new_tx_count;
 695		adapter->rx_ring->count = new_rx_count;
 696		adapter->tx_ring_count = new_tx_count;
 697		adapter->rx_ring_count = new_rx_count;
 698		goto clear_reset;
 699	}
 700
 701	set_tx = (new_tx_count != adapter->tx_ring_count);
 702	set_rx = (new_rx_count != adapter->rx_ring_count);
 703
 704	/* Allocate temporary storage for ring updates */
 705	if (set_tx) {
 706		temp_tx = vmalloc(size);
 707		if (!temp_tx) {
 708			err = -ENOMEM;
 709			goto free_temp;
 710		}
 711	}
 712	if (set_rx) {
 713		temp_rx = vmalloc(size);
 714		if (!temp_rx) {
 715			err = -ENOMEM;
 716			goto free_temp;
 717		}
 718	}
 719
 720	pm_runtime_get_sync(netdev->dev.parent);
 721
 722	e1000e_down(adapter, true);
 723
 724	/* We can't just free everything and then setup again, because the
 725	 * ISRs in MSI-X mode get passed pointers to the Tx and Rx ring
 726	 * structs.  First, attempt to allocate new resources...
 727	 */
 728	if (set_tx) {
 729		memcpy(temp_tx, adapter->tx_ring, size);
 730		temp_tx->count = new_tx_count;
 731		err = e1000e_setup_tx_resources(temp_tx);
 732		if (err)
 733			goto err_setup;
 734	}
 735	if (set_rx) {
 736		memcpy(temp_rx, adapter->rx_ring, size);
 737		temp_rx->count = new_rx_count;
 738		err = e1000e_setup_rx_resources(temp_rx);
 739		if (err)
 740			goto err_setup_rx;
 741	}
 742
 743	/* ...then free the old resources and copy back any new ring data */
 744	if (set_tx) {
 745		e1000e_free_tx_resources(adapter->tx_ring);
 746		memcpy(adapter->tx_ring, temp_tx, size);
 747		adapter->tx_ring_count = new_tx_count;
 748	}
 749	if (set_rx) {
 750		e1000e_free_rx_resources(adapter->rx_ring);
 751		memcpy(adapter->rx_ring, temp_rx, size);
 752		adapter->rx_ring_count = new_rx_count;
 753	}
 754
 755err_setup_rx:
 756	if (err && set_tx)
 757		e1000e_free_tx_resources(temp_tx);
 758err_setup:
 759	e1000e_up(adapter);
 760	pm_runtime_put_sync(netdev->dev.parent);
 761free_temp:
 762	vfree(temp_tx);
 763	vfree(temp_rx);
 764clear_reset:
 765	clear_bit(__E1000_RESETTING, &adapter->state);
 766	return err;
 767}
 768
 769static bool reg_pattern_test(struct e1000_adapter *adapter, u64 *data,
 770			     int reg, int offset, u32 mask, u32 write)
 771{
 772	u32 pat, val;
 773	static const u32 test[] = {
 774		0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF
 775	};
 776	for (pat = 0; pat < ARRAY_SIZE(test); pat++) {
 777		E1000_WRITE_REG_ARRAY(&adapter->hw, reg, offset,
 778				      (test[pat] & write));
 779		val = E1000_READ_REG_ARRAY(&adapter->hw, reg, offset);
 780		if (val != (test[pat] & write & mask)) {
 781			e_err("pattern test failed (reg 0x%05X): got 0x%08X expected 0x%08X\n",
 782			      reg + (offset << 2), val,
 783			      (test[pat] & write & mask));
 784			*data = reg;
 785			return true;
 786		}
 787	}
 788	return false;
 789}
 790
 791static bool reg_set_and_check(struct e1000_adapter *adapter, u64 *data,
 792			      int reg, u32 mask, u32 write)
 793{
 794	u32 val;
 795
 796	__ew32(&adapter->hw, reg, write & mask);
 797	val = __er32(&adapter->hw, reg);
 798	if ((write & mask) != (val & mask)) {
 799		e_err("set/check test failed (reg 0x%05X): got 0x%08X expected 0x%08X\n",
 800		      reg, (val & mask), (write & mask));
 801		*data = reg;
 802		return true;
 803	}
 804	return false;
 805}
 806
 807#define REG_PATTERN_TEST_ARRAY(reg, offset, mask, write)                       \
 808	do {                                                                   \
 809		if (reg_pattern_test(adapter, data, reg, offset, mask, write)) \
 810			return 1;                                              \
 811	} while (0)
 812#define REG_PATTERN_TEST(reg, mask, write)                                     \
 813	REG_PATTERN_TEST_ARRAY(reg, 0, mask, write)
 814
 815#define REG_SET_AND_CHECK(reg, mask, write)                                    \
 816	do {                                                                   \
 817		if (reg_set_and_check(adapter, data, reg, mask, write))        \
 818			return 1;                                              \
 819	} while (0)
 820
 821static int e1000_reg_test(struct e1000_adapter *adapter, u64 *data)
 822{
 823	struct e1000_hw *hw = &adapter->hw;
 824	struct e1000_mac_info *mac = &adapter->hw.mac;
 825	u32 value;
 826	u32 before;
 827	u32 after;
 828	u32 i;
 829	u32 toggle;
 830	u32 mask;
 831	u32 wlock_mac = 0;
 832
 833	/* The status register is Read Only, so a write should fail.
 834	 * Some bits that get toggled are ignored.  There are several bits
 835	 * on newer hardware that are r/w.
 836	 */
 837	switch (mac->type) {
 838	case e1000_82571:
 839	case e1000_82572:
 840	case e1000_80003es2lan:
 841		toggle = 0x7FFFF3FF;
 842		break;
 843	default:
 844		toggle = 0x7FFFF033;
 845		break;
 846	}
 847
 848	before = er32(STATUS);
 849	value = (er32(STATUS) & toggle);
 850	ew32(STATUS, toggle);
 851	after = er32(STATUS) & toggle;
 852	if (value != after) {
 853		e_err("failed STATUS register test got: 0x%08X expected: 0x%08X\n",
 854		      after, value);
 855		*data = 1;
 856		return 1;
 857	}
 858	/* restore previous status */
 859	ew32(STATUS, before);
 860
 861	if (!(adapter->flags & FLAG_IS_ICH)) {
 862		REG_PATTERN_TEST(E1000_FCAL, 0xFFFFFFFF, 0xFFFFFFFF);
 863		REG_PATTERN_TEST(E1000_FCAH, 0x0000FFFF, 0xFFFFFFFF);
 864		REG_PATTERN_TEST(E1000_FCT, 0x0000FFFF, 0xFFFFFFFF);
 865		REG_PATTERN_TEST(E1000_VET, 0x0000FFFF, 0xFFFFFFFF);
 866	}
 867
 868	REG_PATTERN_TEST(E1000_RDTR, 0x0000FFFF, 0xFFFFFFFF);
 869	REG_PATTERN_TEST(E1000_RDBAH(0), 0xFFFFFFFF, 0xFFFFFFFF);
 870	REG_PATTERN_TEST(E1000_RDLEN(0), 0x000FFF80, 0x000FFFFF);
 871	REG_PATTERN_TEST(E1000_RDH(0), 0x0000FFFF, 0x0000FFFF);
 872	REG_PATTERN_TEST(E1000_RDT(0), 0x0000FFFF, 0x0000FFFF);
 873	REG_PATTERN_TEST(E1000_FCRTH, 0x0000FFF8, 0x0000FFF8);
 874	REG_PATTERN_TEST(E1000_FCTTV, 0x0000FFFF, 0x0000FFFF);
 875	REG_PATTERN_TEST(E1000_TIPG, 0x3FFFFFFF, 0x3FFFFFFF);
 876	REG_PATTERN_TEST(E1000_TDBAH(0), 0xFFFFFFFF, 0xFFFFFFFF);
 877	REG_PATTERN_TEST(E1000_TDLEN(0), 0x000FFF80, 0x000FFFFF);
 878
 879	REG_SET_AND_CHECK(E1000_RCTL, 0xFFFFFFFF, 0x00000000);
 880
 881	before = ((adapter->flags & FLAG_IS_ICH) ? 0x06C3B33E : 0x06DFB3FE);
 882	REG_SET_AND_CHECK(E1000_RCTL, before, 0x003FFFFB);
 883	REG_SET_AND_CHECK(E1000_TCTL, 0xFFFFFFFF, 0x00000000);
 884
 885	REG_SET_AND_CHECK(E1000_RCTL, before, 0xFFFFFFFF);
 886	REG_PATTERN_TEST(E1000_RDBAL(0), 0xFFFFFFF0, 0xFFFFFFFF);
 887	if (!(adapter->flags & FLAG_IS_ICH))
 888		REG_PATTERN_TEST(E1000_TXCW, 0xC000FFFF, 0x0000FFFF);
 889	REG_PATTERN_TEST(E1000_TDBAL(0), 0xFFFFFFF0, 0xFFFFFFFF);
 890	REG_PATTERN_TEST(E1000_TIDV, 0x0000FFFF, 0x0000FFFF);
 891	mask = 0x8003FFFF;
 892	switch (mac->type) {
 893	case e1000_ich10lan:
 894	case e1000_pchlan:
 895	case e1000_pch2lan:
 896	case e1000_pch_lpt:
 897	case e1000_pch_spt:
 898		mask |= (1 << 18);
 
 
 899		break;
 900	default:
 901		break;
 902	}
 903
 904	if ((mac->type == e1000_pch_lpt) || (mac->type == e1000_pch_spt))
 905		wlock_mac = (er32(FWSM) & E1000_FWSM_WLOCK_MAC_MASK) >>
 906		    E1000_FWSM_WLOCK_MAC_SHIFT;
 907
 908	for (i = 0; i < mac->rar_entry_count; i++) {
 909		if ((mac->type == e1000_pch_lpt) ||
 910		    (mac->type == e1000_pch_spt)) {
 911			/* Cannot test write-protected SHRAL[n] registers */
 912			if ((wlock_mac == 1) || (wlock_mac && (i > wlock_mac)))
 913				continue;
 914
 915			/* SHRAH[9] different than the others */
 916			if (i == 10)
 917				mask |= (1 << 30);
 918			else
 919				mask &= ~(1 << 30);
 920		}
 921		if (mac->type == e1000_pch2lan) {
 922			/* SHRAH[0,1,2] different than previous */
 923			if (i == 1)
 924				mask &= 0xFFF4FFFF;
 925			/* SHRAH[3] different than SHRAH[0,1,2] */
 926			if (i == 4)
 927				mask |= (1 << 30);
 928			/* RAR[1-6] owned by management engine - skipping */
 929			if (i > 0)
 930				i += 6;
 931		}
 932
 933		REG_PATTERN_TEST_ARRAY(E1000_RA, ((i << 1) + 1), mask,
 934				       0xFFFFFFFF);
 935		/* reset index to actual value */
 936		if ((mac->type == e1000_pch2lan) && (i > 6))
 937			i -= 6;
 938	}
 939
 940	for (i = 0; i < mac->mta_reg_count; i++)
 941		REG_PATTERN_TEST_ARRAY(E1000_MTA, i, 0xFFFFFFFF, 0xFFFFFFFF);
 942
 943	*data = 0;
 944
 945	return 0;
 946}
 947
 948static int e1000_eeprom_test(struct e1000_adapter *adapter, u64 *data)
 949{
 950	u16 temp;
 951	u16 checksum = 0;
 952	u16 i;
 953
 954	*data = 0;
 955	/* Read and add up the contents of the EEPROM */
 956	for (i = 0; i < (NVM_CHECKSUM_REG + 1); i++) {
 957		if ((e1000_read_nvm(&adapter->hw, i, 1, &temp)) < 0) {
 958			*data = 1;
 959			return *data;
 960		}
 961		checksum += temp;
 962	}
 963
 964	/* If Checksum is not Correct return error else test passed */
 965	if ((checksum != (u16)NVM_SUM) && !(*data))
 966		*data = 2;
 967
 968	return *data;
 969}
 970
 971static irqreturn_t e1000_test_intr(int __always_unused irq, void *data)
 972{
 973	struct net_device *netdev = (struct net_device *)data;
 974	struct e1000_adapter *adapter = netdev_priv(netdev);
 975	struct e1000_hw *hw = &adapter->hw;
 976
 977	adapter->test_icr |= er32(ICR);
 978
 979	return IRQ_HANDLED;
 980}
 981
 982static int e1000_intr_test(struct e1000_adapter *adapter, u64 *data)
 983{
 984	struct net_device *netdev = adapter->netdev;
 985	struct e1000_hw *hw = &adapter->hw;
 986	u32 mask;
 987	u32 shared_int = 1;
 988	u32 irq = adapter->pdev->irq;
 989	int i;
 990	int ret_val = 0;
 991	int int_mode = E1000E_INT_MODE_LEGACY;
 992
 993	*data = 0;
 994
 995	/* NOTE: we don't test MSI/MSI-X interrupts here, yet */
 996	if (adapter->int_mode == E1000E_INT_MODE_MSIX) {
 997		int_mode = adapter->int_mode;
 998		e1000e_reset_interrupt_capability(adapter);
 999		adapter->int_mode = E1000E_INT_MODE_LEGACY;
1000		e1000e_set_interrupt_capability(adapter);
1001	}
1002	/* Hook up test interrupt handler just for this test */
1003	if (!request_irq(irq, e1000_test_intr, IRQF_PROBE_SHARED, netdev->name,
1004			 netdev)) {
1005		shared_int = 0;
1006	} else if (request_irq(irq, e1000_test_intr, IRQF_SHARED, netdev->name,
1007			       netdev)) {
1008		*data = 1;
1009		ret_val = -1;
1010		goto out;
1011	}
1012	e_info("testing %s interrupt\n", (shared_int ? "shared" : "unshared"));
1013
1014	/* Disable all the interrupts */
1015	ew32(IMC, 0xFFFFFFFF);
1016	e1e_flush();
1017	usleep_range(10000, 20000);
1018
1019	/* Test each interrupt */
1020	for (i = 0; i < 10; i++) {
1021		/* Interrupt to test */
1022		mask = 1 << i;
1023
1024		if (adapter->flags & FLAG_IS_ICH) {
1025			switch (mask) {
1026			case E1000_ICR_RXSEQ:
1027				continue;
1028			case 0x00000100:
1029				if (adapter->hw.mac.type == e1000_ich8lan ||
1030				    adapter->hw.mac.type == e1000_ich9lan)
1031					continue;
1032				break;
1033			default:
1034				break;
1035			}
1036		}
1037
1038		if (!shared_int) {
1039			/* Disable the interrupt to be reported in
1040			 * the cause register and then force the same
1041			 * interrupt and see if one gets posted.  If
1042			 * an interrupt was posted to the bus, the
1043			 * test failed.
1044			 */
1045			adapter->test_icr = 0;
1046			ew32(IMC, mask);
1047			ew32(ICS, mask);
1048			e1e_flush();
1049			usleep_range(10000, 20000);
1050
1051			if (adapter->test_icr & mask) {
1052				*data = 3;
1053				break;
1054			}
1055		}
1056
1057		/* Enable the interrupt to be reported in
1058		 * the cause register and then force the same
1059		 * interrupt and see if one gets posted.  If
1060		 * an interrupt was not posted to the bus, the
1061		 * test failed.
1062		 */
1063		adapter->test_icr = 0;
1064		ew32(IMS, mask);
1065		ew32(ICS, mask);
1066		e1e_flush();
1067		usleep_range(10000, 20000);
1068
1069		if (!(adapter->test_icr & mask)) {
1070			*data = 4;
1071			break;
1072		}
1073
1074		if (!shared_int) {
1075			/* Disable the other interrupts to be reported in
1076			 * the cause register and then force the other
1077			 * interrupts and see if any get posted.  If
1078			 * an interrupt was posted to the bus, the
1079			 * test failed.
1080			 */
1081			adapter->test_icr = 0;
1082			ew32(IMC, ~mask & 0x00007FFF);
1083			ew32(ICS, ~mask & 0x00007FFF);
1084			e1e_flush();
1085			usleep_range(10000, 20000);
1086
1087			if (adapter->test_icr) {
1088				*data = 5;
1089				break;
1090			}
1091		}
1092	}
1093
1094	/* Disable all the interrupts */
1095	ew32(IMC, 0xFFFFFFFF);
1096	e1e_flush();
1097	usleep_range(10000, 20000);
1098
1099	/* Unhook test interrupt handler */
1100	free_irq(irq, netdev);
1101
1102out:
1103	if (int_mode == E1000E_INT_MODE_MSIX) {
1104		e1000e_reset_interrupt_capability(adapter);
1105		adapter->int_mode = int_mode;
1106		e1000e_set_interrupt_capability(adapter);
1107	}
1108
1109	return ret_val;
1110}
1111
1112static void e1000_free_desc_rings(struct e1000_adapter *adapter)
1113{
1114	struct e1000_ring *tx_ring = &adapter->test_tx_ring;
1115	struct e1000_ring *rx_ring = &adapter->test_rx_ring;
1116	struct pci_dev *pdev = adapter->pdev;
1117	struct e1000_buffer *buffer_info;
1118	int i;
1119
1120	if (tx_ring->desc && tx_ring->buffer_info) {
1121		for (i = 0; i < tx_ring->count; i++) {
1122			buffer_info = &tx_ring->buffer_info[i];
1123
1124			if (buffer_info->dma)
1125				dma_unmap_single(&pdev->dev,
1126						 buffer_info->dma,
1127						 buffer_info->length,
1128						 DMA_TO_DEVICE);
1129			if (buffer_info->skb)
1130				dev_kfree_skb(buffer_info->skb);
1131		}
1132	}
1133
1134	if (rx_ring->desc && rx_ring->buffer_info) {
1135		for (i = 0; i < rx_ring->count; i++) {
1136			buffer_info = &rx_ring->buffer_info[i];
1137
1138			if (buffer_info->dma)
1139				dma_unmap_single(&pdev->dev,
1140						 buffer_info->dma,
1141						 2048, DMA_FROM_DEVICE);
1142			if (buffer_info->skb)
1143				dev_kfree_skb(buffer_info->skb);
1144		}
1145	}
1146
1147	if (tx_ring->desc) {
1148		dma_free_coherent(&pdev->dev, tx_ring->size, tx_ring->desc,
1149				  tx_ring->dma);
1150		tx_ring->desc = NULL;
1151	}
1152	if (rx_ring->desc) {
1153		dma_free_coherent(&pdev->dev, rx_ring->size, rx_ring->desc,
1154				  rx_ring->dma);
1155		rx_ring->desc = NULL;
1156	}
1157
1158	kfree(tx_ring->buffer_info);
1159	tx_ring->buffer_info = NULL;
1160	kfree(rx_ring->buffer_info);
1161	rx_ring->buffer_info = NULL;
1162}
1163
1164static int e1000_setup_desc_rings(struct e1000_adapter *adapter)
1165{
1166	struct e1000_ring *tx_ring = &adapter->test_tx_ring;
1167	struct e1000_ring *rx_ring = &adapter->test_rx_ring;
1168	struct pci_dev *pdev = adapter->pdev;
1169	struct e1000_hw *hw = &adapter->hw;
1170	u32 rctl;
1171	int i;
1172	int ret_val;
1173
1174	/* Setup Tx descriptor ring and Tx buffers */
1175
1176	if (!tx_ring->count)
1177		tx_ring->count = E1000_DEFAULT_TXD;
1178
1179	tx_ring->buffer_info = kcalloc(tx_ring->count,
1180				       sizeof(struct e1000_buffer), GFP_KERNEL);
1181	if (!tx_ring->buffer_info) {
1182		ret_val = 1;
1183		goto err_nomem;
1184	}
1185
1186	tx_ring->size = tx_ring->count * sizeof(struct e1000_tx_desc);
1187	tx_ring->size = ALIGN(tx_ring->size, 4096);
1188	tx_ring->desc = dma_alloc_coherent(&pdev->dev, tx_ring->size,
1189					   &tx_ring->dma, GFP_KERNEL);
1190	if (!tx_ring->desc) {
1191		ret_val = 2;
1192		goto err_nomem;
1193	}
1194	tx_ring->next_to_use = 0;
1195	tx_ring->next_to_clean = 0;
1196
1197	ew32(TDBAL(0), ((u64)tx_ring->dma & 0x00000000FFFFFFFF));
1198	ew32(TDBAH(0), ((u64)tx_ring->dma >> 32));
1199	ew32(TDLEN(0), tx_ring->count * sizeof(struct e1000_tx_desc));
1200	ew32(TDH(0), 0);
1201	ew32(TDT(0), 0);
1202	ew32(TCTL, E1000_TCTL_PSP | E1000_TCTL_EN | E1000_TCTL_MULR |
1203	     E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT |
1204	     E1000_COLLISION_DISTANCE << E1000_COLD_SHIFT);
1205
1206	for (i = 0; i < tx_ring->count; i++) {
1207		struct e1000_tx_desc *tx_desc = E1000_TX_DESC(*tx_ring, i);
1208		struct sk_buff *skb;
1209		unsigned int skb_size = 1024;
1210
1211		skb = alloc_skb(skb_size, GFP_KERNEL);
1212		if (!skb) {
1213			ret_val = 3;
1214			goto err_nomem;
1215		}
1216		skb_put(skb, skb_size);
1217		tx_ring->buffer_info[i].skb = skb;
1218		tx_ring->buffer_info[i].length = skb->len;
1219		tx_ring->buffer_info[i].dma =
1220		    dma_map_single(&pdev->dev, skb->data, skb->len,
1221				   DMA_TO_DEVICE);
1222		if (dma_mapping_error(&pdev->dev,
1223				      tx_ring->buffer_info[i].dma)) {
1224			ret_val = 4;
1225			goto err_nomem;
1226		}
1227		tx_desc->buffer_addr = cpu_to_le64(tx_ring->buffer_info[i].dma);
1228		tx_desc->lower.data = cpu_to_le32(skb->len);
1229		tx_desc->lower.data |= cpu_to_le32(E1000_TXD_CMD_EOP |
1230						   E1000_TXD_CMD_IFCS |
1231						   E1000_TXD_CMD_RS);
1232		tx_desc->upper.data = 0;
1233	}
1234
1235	/* Setup Rx descriptor ring and Rx buffers */
1236
1237	if (!rx_ring->count)
1238		rx_ring->count = E1000_DEFAULT_RXD;
1239
1240	rx_ring->buffer_info = kcalloc(rx_ring->count,
1241				       sizeof(struct e1000_buffer), GFP_KERNEL);
1242	if (!rx_ring->buffer_info) {
1243		ret_val = 5;
1244		goto err_nomem;
1245	}
1246
1247	rx_ring->size = rx_ring->count * sizeof(union e1000_rx_desc_extended);
1248	rx_ring->desc = dma_alloc_coherent(&pdev->dev, rx_ring->size,
1249					   &rx_ring->dma, GFP_KERNEL);
1250	if (!rx_ring->desc) {
1251		ret_val = 6;
1252		goto err_nomem;
1253	}
1254	rx_ring->next_to_use = 0;
1255	rx_ring->next_to_clean = 0;
1256
1257	rctl = er32(RCTL);
1258	if (!(adapter->flags2 & FLAG2_NO_DISABLE_RX))
1259		ew32(RCTL, rctl & ~E1000_RCTL_EN);
1260	ew32(RDBAL(0), ((u64)rx_ring->dma & 0xFFFFFFFF));
1261	ew32(RDBAH(0), ((u64)rx_ring->dma >> 32));
1262	ew32(RDLEN(0), rx_ring->size);
1263	ew32(RDH(0), 0);
1264	ew32(RDT(0), 0);
1265	rctl = E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_SZ_2048 |
1266	    E1000_RCTL_UPE | E1000_RCTL_MPE | E1000_RCTL_LPE |
1267	    E1000_RCTL_SBP | E1000_RCTL_SECRC |
1268	    E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF |
1269	    (adapter->hw.mac.mc_filter_type << E1000_RCTL_MO_SHIFT);
1270	ew32(RCTL, rctl);
1271
1272	for (i = 0; i < rx_ring->count; i++) {
1273		union e1000_rx_desc_extended *rx_desc;
1274		struct sk_buff *skb;
1275
1276		skb = alloc_skb(2048 + NET_IP_ALIGN, GFP_KERNEL);
1277		if (!skb) {
1278			ret_val = 7;
1279			goto err_nomem;
1280		}
1281		skb_reserve(skb, NET_IP_ALIGN);
1282		rx_ring->buffer_info[i].skb = skb;
1283		rx_ring->buffer_info[i].dma =
1284		    dma_map_single(&pdev->dev, skb->data, 2048,
1285				   DMA_FROM_DEVICE);
1286		if (dma_mapping_error(&pdev->dev,
1287				      rx_ring->buffer_info[i].dma)) {
1288			ret_val = 8;
1289			goto err_nomem;
1290		}
1291		rx_desc = E1000_RX_DESC_EXT(*rx_ring, i);
1292		rx_desc->read.buffer_addr =
1293		    cpu_to_le64(rx_ring->buffer_info[i].dma);
1294		memset(skb->data, 0x00, skb->len);
1295	}
1296
1297	return 0;
1298
1299err_nomem:
1300	e1000_free_desc_rings(adapter);
1301	return ret_val;
1302}
1303
1304static void e1000_phy_disable_receiver(struct e1000_adapter *adapter)
1305{
1306	/* Write out to PHY registers 29 and 30 to disable the Receiver. */
1307	e1e_wphy(&adapter->hw, 29, 0x001F);
1308	e1e_wphy(&adapter->hw, 30, 0x8FFC);
1309	e1e_wphy(&adapter->hw, 29, 0x001A);
1310	e1e_wphy(&adapter->hw, 30, 0x8FF0);
1311}
1312
1313static int e1000_integrated_phy_loopback(struct e1000_adapter *adapter)
1314{
1315	struct e1000_hw *hw = &adapter->hw;
1316	u32 ctrl_reg = 0;
1317	u16 phy_reg = 0;
1318	s32 ret_val = 0;
1319
1320	hw->mac.autoneg = 0;
1321
1322	if (hw->phy.type == e1000_phy_ife) {
1323		/* force 100, set loopback */
1324		e1e_wphy(hw, MII_BMCR, 0x6100);
1325
1326		/* Now set up the MAC to the same speed/duplex as the PHY. */
1327		ctrl_reg = er32(CTRL);
1328		ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
1329		ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
1330			     E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
1331			     E1000_CTRL_SPD_100 |/* Force Speed to 100 */
1332			     E1000_CTRL_FD);	 /* Force Duplex to FULL */
1333
1334		ew32(CTRL, ctrl_reg);
1335		e1e_flush();
1336		usleep_range(500, 1000);
1337
1338		return 0;
1339	}
1340
1341	/* Specific PHY configuration for loopback */
1342	switch (hw->phy.type) {
1343	case e1000_phy_m88:
1344		/* Auto-MDI/MDIX Off */
1345		e1e_wphy(hw, M88E1000_PHY_SPEC_CTRL, 0x0808);
1346		/* reset to update Auto-MDI/MDIX */
1347		e1e_wphy(hw, MII_BMCR, 0x9140);
1348		/* autoneg off */
1349		e1e_wphy(hw, MII_BMCR, 0x8140);
1350		break;
1351	case e1000_phy_gg82563:
1352		e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, 0x1CC);
1353		break;
1354	case e1000_phy_bm:
1355		/* Set Default MAC Interface speed to 1GB */
1356		e1e_rphy(hw, PHY_REG(2, 21), &phy_reg);
1357		phy_reg &= ~0x0007;
1358		phy_reg |= 0x006;
1359		e1e_wphy(hw, PHY_REG(2, 21), phy_reg);
1360		/* Assert SW reset for above settings to take effect */
1361		hw->phy.ops.commit(hw);
1362		usleep_range(1000, 2000);
1363		/* Force Full Duplex */
1364		e1e_rphy(hw, PHY_REG(769, 16), &phy_reg);
1365		e1e_wphy(hw, PHY_REG(769, 16), phy_reg | 0x000C);
1366		/* Set Link Up (in force link) */
1367		e1e_rphy(hw, PHY_REG(776, 16), &phy_reg);
1368		e1e_wphy(hw, PHY_REG(776, 16), phy_reg | 0x0040);
1369		/* Force Link */
1370		e1e_rphy(hw, PHY_REG(769, 16), &phy_reg);
1371		e1e_wphy(hw, PHY_REG(769, 16), phy_reg | 0x0040);
1372		/* Set Early Link Enable */
1373		e1e_rphy(hw, PHY_REG(769, 20), &phy_reg);
1374		e1e_wphy(hw, PHY_REG(769, 20), phy_reg | 0x0400);
1375		break;
1376	case e1000_phy_82577:
1377	case e1000_phy_82578:
1378		/* Workaround: K1 must be disabled for stable 1Gbps operation */
1379		ret_val = hw->phy.ops.acquire(hw);
1380		if (ret_val) {
1381			e_err("Cannot setup 1Gbps loopback.\n");
1382			return ret_val;
1383		}
1384		e1000_configure_k1_ich8lan(hw, false);
1385		hw->phy.ops.release(hw);
1386		break;
1387	case e1000_phy_82579:
1388		/* Disable PHY energy detect power down */
1389		e1e_rphy(hw, PHY_REG(0, 21), &phy_reg);
1390		e1e_wphy(hw, PHY_REG(0, 21), phy_reg & ~(1 << 3));
1391		/* Disable full chip energy detect */
1392		e1e_rphy(hw, PHY_REG(776, 18), &phy_reg);
1393		e1e_wphy(hw, PHY_REG(776, 18), phy_reg | 1);
1394		/* Enable loopback on the PHY */
1395		e1e_wphy(hw, I82577_PHY_LBK_CTRL, 0x8001);
1396		break;
1397	default:
1398		break;
1399	}
1400
1401	/* force 1000, set loopback */
1402	e1e_wphy(hw, MII_BMCR, 0x4140);
1403	msleep(250);
1404
1405	/* Now set up the MAC to the same speed/duplex as the PHY. */
1406	ctrl_reg = er32(CTRL);
1407	ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
1408	ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
1409		     E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
1410		     E1000_CTRL_SPD_1000 |/* Force Speed to 1000 */
1411		     E1000_CTRL_FD);	 /* Force Duplex to FULL */
1412
1413	if (adapter->flags & FLAG_IS_ICH)
1414		ctrl_reg |= E1000_CTRL_SLU;	/* Set Link Up */
1415
1416	if (hw->phy.media_type == e1000_media_type_copper &&
1417	    hw->phy.type == e1000_phy_m88) {
1418		ctrl_reg |= E1000_CTRL_ILOS;	/* Invert Loss of Signal */
1419	} else {
1420		/* Set the ILOS bit on the fiber Nic if half duplex link is
1421		 * detected.
1422		 */
1423		if ((er32(STATUS) & E1000_STATUS_FD) == 0)
1424			ctrl_reg |= (E1000_CTRL_ILOS | E1000_CTRL_SLU);
1425	}
1426
1427	ew32(CTRL, ctrl_reg);
1428
1429	/* Disable the receiver on the PHY so when a cable is plugged in, the
1430	 * PHY does not begin to autoneg when a cable is reconnected to the NIC.
1431	 */
1432	if (hw->phy.type == e1000_phy_m88)
1433		e1000_phy_disable_receiver(adapter);
1434
1435	usleep_range(500, 1000);
1436
1437	return 0;
1438}
1439
1440static int e1000_set_82571_fiber_loopback(struct e1000_adapter *adapter)
1441{
1442	struct e1000_hw *hw = &adapter->hw;
1443	u32 ctrl = er32(CTRL);
1444	int link;
1445
1446	/* special requirements for 82571/82572 fiber adapters */
1447
1448	/* jump through hoops to make sure link is up because serdes
1449	 * link is hardwired up
1450	 */
1451	ctrl |= E1000_CTRL_SLU;
1452	ew32(CTRL, ctrl);
1453
1454	/* disable autoneg */
1455	ctrl = er32(TXCW);
1456	ctrl &= ~(1 << 31);
1457	ew32(TXCW, ctrl);
1458
1459	link = (er32(STATUS) & E1000_STATUS_LU);
1460
1461	if (!link) {
1462		/* set invert loss of signal */
1463		ctrl = er32(CTRL);
1464		ctrl |= E1000_CTRL_ILOS;
1465		ew32(CTRL, ctrl);
1466	}
1467
1468	/* special write to serdes control register to enable SerDes analog
1469	 * loopback
1470	 */
1471	ew32(SCTL, E1000_SCTL_ENABLE_SERDES_LOOPBACK);
1472	e1e_flush();
1473	usleep_range(10000, 20000);
1474
1475	return 0;
1476}
1477
1478/* only call this for fiber/serdes connections to es2lan */
1479static int e1000_set_es2lan_mac_loopback(struct e1000_adapter *adapter)
1480{
1481	struct e1000_hw *hw = &adapter->hw;
1482	u32 ctrlext = er32(CTRL_EXT);
1483	u32 ctrl = er32(CTRL);
1484
1485	/* save CTRL_EXT to restore later, reuse an empty variable (unused
1486	 * on mac_type 80003es2lan)
1487	 */
1488	adapter->tx_fifo_head = ctrlext;
1489
1490	/* clear the serdes mode bits, putting the device into mac loopback */
1491	ctrlext &= ~E1000_CTRL_EXT_LINK_MODE_PCIE_SERDES;
1492	ew32(CTRL_EXT, ctrlext);
1493
1494	/* force speed to 1000/FD, link up */
1495	ctrl &= ~(E1000_CTRL_SPD_1000 | E1000_CTRL_SPD_100);
1496	ctrl |= (E1000_CTRL_SLU | E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX |
1497		 E1000_CTRL_SPD_1000 | E1000_CTRL_FD);
1498	ew32(CTRL, ctrl);
1499
1500	/* set mac loopback */
1501	ctrl = er32(RCTL);
1502	ctrl |= E1000_RCTL_LBM_MAC;
1503	ew32(RCTL, ctrl);
1504
1505	/* set testing mode parameters (no need to reset later) */
1506#define KMRNCTRLSTA_OPMODE (0x1F << 16)
1507#define KMRNCTRLSTA_OPMODE_1GB_FD_GMII 0x0582
1508	ew32(KMRNCTRLSTA,
1509	     (KMRNCTRLSTA_OPMODE | KMRNCTRLSTA_OPMODE_1GB_FD_GMII));
1510
1511	return 0;
1512}
1513
1514static int e1000_setup_loopback_test(struct e1000_adapter *adapter)
1515{
1516	struct e1000_hw *hw = &adapter->hw;
1517	u32 rctl, fext_nvm11, tarc0;
1518
1519	if (hw->mac.type == e1000_pch_spt) {
1520		fext_nvm11 = er32(FEXTNVM11);
1521		fext_nvm11 |= E1000_FEXTNVM11_DISABLE_MULR_FIX;
1522		ew32(FEXTNVM11, fext_nvm11);
1523		tarc0 = er32(TARC(0));
1524		/* clear bits 28 & 29 (control of MULR concurrent requests) */
1525		tarc0 &= 0xcfffffff;
1526		/* set bit 29 (value of MULR requests is now 2) */
1527		tarc0 |= 0x20000000;
1528		ew32(TARC(0), tarc0);
1529	}
1530	if (hw->phy.media_type == e1000_media_type_fiber ||
1531	    hw->phy.media_type == e1000_media_type_internal_serdes) {
1532		switch (hw->mac.type) {
1533		case e1000_80003es2lan:
1534			return e1000_set_es2lan_mac_loopback(adapter);
1535		case e1000_82571:
1536		case e1000_82572:
1537			return e1000_set_82571_fiber_loopback(adapter);
1538		default:
1539			rctl = er32(RCTL);
1540			rctl |= E1000_RCTL_LBM_TCVR;
1541			ew32(RCTL, rctl);
1542			return 0;
1543		}
1544	} else if (hw->phy.media_type == e1000_media_type_copper) {
1545		return e1000_integrated_phy_loopback(adapter);
1546	}
1547
1548	return 7;
1549}
1550
1551static void e1000_loopback_cleanup(struct e1000_adapter *adapter)
1552{
1553	struct e1000_hw *hw = &adapter->hw;
1554	u32 rctl, fext_nvm11, tarc0;
1555	u16 phy_reg;
1556
1557	rctl = er32(RCTL);
1558	rctl &= ~(E1000_RCTL_LBM_TCVR | E1000_RCTL_LBM_MAC);
1559	ew32(RCTL, rctl);
1560
1561	switch (hw->mac.type) {
1562	case e1000_pch_spt:
 
1563		fext_nvm11 = er32(FEXTNVM11);
1564		fext_nvm11 &= ~E1000_FEXTNVM11_DISABLE_MULR_FIX;
1565		ew32(FEXTNVM11, fext_nvm11);
1566		tarc0 = er32(TARC(0));
1567		/* clear bits 28 & 29 (control of MULR concurrent requests) */
1568		/* set bit 29 (value of MULR requests is now 0) */
1569		tarc0 &= 0xcfffffff;
1570		ew32(TARC(0), tarc0);
1571		/* fall through */
1572	case e1000_80003es2lan:
1573		if (hw->phy.media_type == e1000_media_type_fiber ||
1574		    hw->phy.media_type == e1000_media_type_internal_serdes) {
1575			/* restore CTRL_EXT, stealing space from tx_fifo_head */
1576			ew32(CTRL_EXT, adapter->tx_fifo_head);
1577			adapter->tx_fifo_head = 0;
1578		}
1579		/* fall through */
1580	case e1000_82571:
1581	case e1000_82572:
1582		if (hw->phy.media_type == e1000_media_type_fiber ||
1583		    hw->phy.media_type == e1000_media_type_internal_serdes) {
1584			ew32(SCTL, E1000_SCTL_DISABLE_SERDES_LOOPBACK);
1585			e1e_flush();
1586			usleep_range(10000, 20000);
1587			break;
1588		}
1589		/* Fall Through */
1590	default:
1591		hw->mac.autoneg = 1;
1592		if (hw->phy.type == e1000_phy_gg82563)
1593			e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, 0x180);
1594		e1e_rphy(hw, MII_BMCR, &phy_reg);
1595		if (phy_reg & BMCR_LOOPBACK) {
1596			phy_reg &= ~BMCR_LOOPBACK;
1597			e1e_wphy(hw, MII_BMCR, phy_reg);
1598			if (hw->phy.ops.commit)
1599				hw->phy.ops.commit(hw);
1600		}
1601		break;
1602	}
1603}
1604
1605static void e1000_create_lbtest_frame(struct sk_buff *skb,
1606				      unsigned int frame_size)
1607{
1608	memset(skb->data, 0xFF, frame_size);
1609	frame_size &= ~1;
1610	memset(&skb->data[frame_size / 2], 0xAA, frame_size / 2 - 1);
1611	memset(&skb->data[frame_size / 2 + 10], 0xBE, 1);
1612	memset(&skb->data[frame_size / 2 + 12], 0xAF, 1);
1613}
1614
1615static int e1000_check_lbtest_frame(struct sk_buff *skb,
1616				    unsigned int frame_size)
1617{
1618	frame_size &= ~1;
1619	if (*(skb->data + 3) == 0xFF)
1620		if ((*(skb->data + frame_size / 2 + 10) == 0xBE) &&
1621		    (*(skb->data + frame_size / 2 + 12) == 0xAF))
1622			return 0;
1623	return 13;
1624}
1625
1626static int e1000_run_loopback_test(struct e1000_adapter *adapter)
1627{
1628	struct e1000_ring *tx_ring = &adapter->test_tx_ring;
1629	struct e1000_ring *rx_ring = &adapter->test_rx_ring;
1630	struct pci_dev *pdev = adapter->pdev;
1631	struct e1000_hw *hw = &adapter->hw;
1632	struct e1000_buffer *buffer_info;
1633	int i, j, k, l;
1634	int lc;
1635	int good_cnt;
1636	int ret_val = 0;
1637	unsigned long time;
1638
1639	ew32(RDT(0), rx_ring->count - 1);
1640
1641	/* Calculate the loop count based on the largest descriptor ring
1642	 * The idea is to wrap the largest ring a number of times using 64
1643	 * send/receive pairs during each loop
1644	 */
1645
1646	if (rx_ring->count <= tx_ring->count)
1647		lc = ((tx_ring->count / 64) * 2) + 1;
1648	else
1649		lc = ((rx_ring->count / 64) * 2) + 1;
1650
1651	k = 0;
1652	l = 0;
1653	/* loop count loop */
1654	for (j = 0; j <= lc; j++) {
1655		/* send the packets */
1656		for (i = 0; i < 64; i++) {
1657			buffer_info = &tx_ring->buffer_info[k];
1658
1659			e1000_create_lbtest_frame(buffer_info->skb, 1024);
1660			dma_sync_single_for_device(&pdev->dev,
1661						   buffer_info->dma,
1662						   buffer_info->length,
1663						   DMA_TO_DEVICE);
1664			k++;
1665			if (k == tx_ring->count)
1666				k = 0;
1667		}
1668		ew32(TDT(0), k);
1669		e1e_flush();
1670		msleep(200);
1671		time = jiffies;	/* set the start time for the receive */
1672		good_cnt = 0;
1673		/* receive the sent packets */
1674		do {
1675			buffer_info = &rx_ring->buffer_info[l];
1676
1677			dma_sync_single_for_cpu(&pdev->dev,
1678						buffer_info->dma, 2048,
1679						DMA_FROM_DEVICE);
1680
1681			ret_val = e1000_check_lbtest_frame(buffer_info->skb,
1682							   1024);
1683			if (!ret_val)
1684				good_cnt++;
1685			l++;
1686			if (l == rx_ring->count)
1687				l = 0;
1688			/* time + 20 msecs (200 msecs on 2.4) is more than
1689			 * enough time to complete the receives, if it's
1690			 * exceeded, break and error off
1691			 */
1692		} while ((good_cnt < 64) && !time_after(jiffies, time + 20));
1693		if (good_cnt != 64) {
1694			ret_val = 13;	/* ret_val is the same as mis-compare */
1695			break;
1696		}
1697		if (time_after(jiffies, time + 20)) {
1698			ret_val = 14;	/* error code for time out error */
1699			break;
1700		}
1701	}
1702	return ret_val;
1703}
1704
1705static int e1000_loopback_test(struct e1000_adapter *adapter, u64 *data)
1706{
1707	struct e1000_hw *hw = &adapter->hw;
1708
1709	/* PHY loopback cannot be performed if SoL/IDER sessions are active */
1710	if (hw->phy.ops.check_reset_block &&
1711	    hw->phy.ops.check_reset_block(hw)) {
1712		e_err("Cannot do PHY loopback test when SoL/IDER is active.\n");
1713		*data = 0;
1714		goto out;
1715	}
1716
1717	*data = e1000_setup_desc_rings(adapter);
1718	if (*data)
1719		goto out;
1720
1721	*data = e1000_setup_loopback_test(adapter);
1722	if (*data)
1723		goto err_loopback;
1724
1725	*data = e1000_run_loopback_test(adapter);
1726	e1000_loopback_cleanup(adapter);
1727
1728err_loopback:
1729	e1000_free_desc_rings(adapter);
1730out:
1731	return *data;
1732}
1733
1734static int e1000_link_test(struct e1000_adapter *adapter, u64 *data)
1735{
1736	struct e1000_hw *hw = &adapter->hw;
1737
1738	*data = 0;
1739	if (hw->phy.media_type == e1000_media_type_internal_serdes) {
1740		int i = 0;
1741
1742		hw->mac.serdes_has_link = false;
1743
1744		/* On some blade server designs, link establishment
1745		 * could take as long as 2-3 minutes
1746		 */
1747		do {
1748			hw->mac.ops.check_for_link(hw);
1749			if (hw->mac.serdes_has_link)
1750				return *data;
1751			msleep(20);
1752		} while (i++ < 3750);
1753
1754		*data = 1;
1755	} else {
1756		hw->mac.ops.check_for_link(hw);
1757		if (hw->mac.autoneg)
1758			/* On some Phy/switch combinations, link establishment
1759			 * can take a few seconds more than expected.
1760			 */
1761			msleep_interruptible(5000);
1762
1763		if (!(er32(STATUS) & E1000_STATUS_LU))
1764			*data = 1;
1765	}
1766	return *data;
1767}
1768
1769static int e1000e_get_sset_count(struct net_device __always_unused *netdev,
1770				 int sset)
1771{
1772	switch (sset) {
1773	case ETH_SS_TEST:
1774		return E1000_TEST_LEN;
1775	case ETH_SS_STATS:
1776		return E1000_STATS_LEN;
1777	default:
1778		return -EOPNOTSUPP;
1779	}
1780}
1781
1782static void e1000_diag_test(struct net_device *netdev,
1783			    struct ethtool_test *eth_test, u64 *data)
1784{
1785	struct e1000_adapter *adapter = netdev_priv(netdev);
1786	u16 autoneg_advertised;
1787	u8 forced_speed_duplex;
1788	u8 autoneg;
1789	bool if_running = netif_running(netdev);
1790
1791	pm_runtime_get_sync(netdev->dev.parent);
1792
1793	set_bit(__E1000_TESTING, &adapter->state);
1794
1795	if (!if_running) {
1796		/* Get control of and reset hardware */
1797		if (adapter->flags & FLAG_HAS_AMT)
1798			e1000e_get_hw_control(adapter);
1799
1800		e1000e_power_up_phy(adapter);
1801
1802		adapter->hw.phy.autoneg_wait_to_complete = 1;
1803		e1000e_reset(adapter);
1804		adapter->hw.phy.autoneg_wait_to_complete = 0;
1805	}
1806
1807	if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
1808		/* Offline tests */
1809
1810		/* save speed, duplex, autoneg settings */
1811		autoneg_advertised = adapter->hw.phy.autoneg_advertised;
1812		forced_speed_duplex = adapter->hw.mac.forced_speed_duplex;
1813		autoneg = adapter->hw.mac.autoneg;
1814
1815		e_info("offline testing starting\n");
1816
1817		if (if_running)
1818			/* indicate we're in test mode */
1819			dev_close(netdev);
1820
1821		if (e1000_reg_test(adapter, &data[0]))
1822			eth_test->flags |= ETH_TEST_FL_FAILED;
1823
1824		e1000e_reset(adapter);
1825		if (e1000_eeprom_test(adapter, &data[1]))
1826			eth_test->flags |= ETH_TEST_FL_FAILED;
1827
1828		e1000e_reset(adapter);
1829		if (e1000_intr_test(adapter, &data[2]))
1830			eth_test->flags |= ETH_TEST_FL_FAILED;
1831
1832		e1000e_reset(adapter);
1833		if (e1000_loopback_test(adapter, &data[3]))
1834			eth_test->flags |= ETH_TEST_FL_FAILED;
1835
1836		/* force this routine to wait until autoneg complete/timeout */
1837		adapter->hw.phy.autoneg_wait_to_complete = 1;
1838		e1000e_reset(adapter);
1839		adapter->hw.phy.autoneg_wait_to_complete = 0;
1840
1841		if (e1000_link_test(adapter, &data[4]))
1842			eth_test->flags |= ETH_TEST_FL_FAILED;
1843
1844		/* restore speed, duplex, autoneg settings */
1845		adapter->hw.phy.autoneg_advertised = autoneg_advertised;
1846		adapter->hw.mac.forced_speed_duplex = forced_speed_duplex;
1847		adapter->hw.mac.autoneg = autoneg;
1848		e1000e_reset(adapter);
1849
1850		clear_bit(__E1000_TESTING, &adapter->state);
1851		if (if_running)
1852			dev_open(netdev);
1853	} else {
1854		/* Online tests */
1855
1856		e_info("online testing starting\n");
1857
1858		/* register, eeprom, intr and loopback tests not run online */
1859		data[0] = 0;
1860		data[1] = 0;
1861		data[2] = 0;
1862		data[3] = 0;
1863
1864		if (e1000_link_test(adapter, &data[4]))
1865			eth_test->flags |= ETH_TEST_FL_FAILED;
1866
1867		clear_bit(__E1000_TESTING, &adapter->state);
1868	}
1869
1870	if (!if_running) {
1871		e1000e_reset(adapter);
1872
1873		if (adapter->flags & FLAG_HAS_AMT)
1874			e1000e_release_hw_control(adapter);
1875	}
1876
1877	msleep_interruptible(4 * 1000);
1878
1879	pm_runtime_put_sync(netdev->dev.parent);
1880}
1881
1882static void e1000_get_wol(struct net_device *netdev,
1883			  struct ethtool_wolinfo *wol)
1884{
1885	struct e1000_adapter *adapter = netdev_priv(netdev);
1886
1887	wol->supported = 0;
1888	wol->wolopts = 0;
1889
1890	if (!(adapter->flags & FLAG_HAS_WOL) ||
1891	    !device_can_wakeup(&adapter->pdev->dev))
1892		return;
1893
1894	wol->supported = WAKE_UCAST | WAKE_MCAST |
1895	    WAKE_BCAST | WAKE_MAGIC | WAKE_PHY;
1896
1897	/* apply any specific unsupported masks here */
1898	if (adapter->flags & FLAG_NO_WAKE_UCAST) {
1899		wol->supported &= ~WAKE_UCAST;
1900
1901		if (adapter->wol & E1000_WUFC_EX)
1902			e_err("Interface does not support directed (unicast) frame wake-up packets\n");
1903	}
1904
1905	if (adapter->wol & E1000_WUFC_EX)
1906		wol->wolopts |= WAKE_UCAST;
1907	if (adapter->wol & E1000_WUFC_MC)
1908		wol->wolopts |= WAKE_MCAST;
1909	if (adapter->wol & E1000_WUFC_BC)
1910		wol->wolopts |= WAKE_BCAST;
1911	if (adapter->wol & E1000_WUFC_MAG)
1912		wol->wolopts |= WAKE_MAGIC;
1913	if (adapter->wol & E1000_WUFC_LNKC)
1914		wol->wolopts |= WAKE_PHY;
1915}
1916
1917static int e1000_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
1918{
1919	struct e1000_adapter *adapter = netdev_priv(netdev);
1920
1921	if (!(adapter->flags & FLAG_HAS_WOL) ||
1922	    !device_can_wakeup(&adapter->pdev->dev) ||
1923	    (wol->wolopts & ~(WAKE_UCAST | WAKE_MCAST | WAKE_BCAST |
1924			      WAKE_MAGIC | WAKE_PHY)))
1925		return -EOPNOTSUPP;
1926
1927	/* these settings will always override what we currently have */
1928	adapter->wol = 0;
1929
1930	if (wol->wolopts & WAKE_UCAST)
1931		adapter->wol |= E1000_WUFC_EX;
1932	if (wol->wolopts & WAKE_MCAST)
1933		adapter->wol |= E1000_WUFC_MC;
1934	if (wol->wolopts & WAKE_BCAST)
1935		adapter->wol |= E1000_WUFC_BC;
1936	if (wol->wolopts & WAKE_MAGIC)
1937		adapter->wol |= E1000_WUFC_MAG;
1938	if (wol->wolopts & WAKE_PHY)
1939		adapter->wol |= E1000_WUFC_LNKC;
1940
1941	device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
1942
1943	return 0;
1944}
1945
1946static int e1000_set_phys_id(struct net_device *netdev,
1947			     enum ethtool_phys_id_state state)
1948{
1949	struct e1000_adapter *adapter = netdev_priv(netdev);
1950	struct e1000_hw *hw = &adapter->hw;
1951
1952	switch (state) {
1953	case ETHTOOL_ID_ACTIVE:
1954		pm_runtime_get_sync(netdev->dev.parent);
1955
1956		if (!hw->mac.ops.blink_led)
1957			return 2;	/* cycle on/off twice per second */
1958
1959		hw->mac.ops.blink_led(hw);
1960		break;
1961
1962	case ETHTOOL_ID_INACTIVE:
1963		if (hw->phy.type == e1000_phy_ife)
1964			e1e_wphy(hw, IFE_PHY_SPECIAL_CONTROL_LED, 0);
1965		hw->mac.ops.led_off(hw);
1966		hw->mac.ops.cleanup_led(hw);
1967		pm_runtime_put_sync(netdev->dev.parent);
1968		break;
1969
1970	case ETHTOOL_ID_ON:
1971		hw->mac.ops.led_on(hw);
1972		break;
1973
1974	case ETHTOOL_ID_OFF:
1975		hw->mac.ops.led_off(hw);
1976		break;
1977	}
1978
1979	return 0;
1980}
1981
1982static int e1000_get_coalesce(struct net_device *netdev,
1983			      struct ethtool_coalesce *ec)
1984{
1985	struct e1000_adapter *adapter = netdev_priv(netdev);
1986
1987	if (adapter->itr_setting <= 4)
1988		ec->rx_coalesce_usecs = adapter->itr_setting;
1989	else
1990		ec->rx_coalesce_usecs = 1000000 / adapter->itr_setting;
1991
1992	return 0;
1993}
1994
1995static int e1000_set_coalesce(struct net_device *netdev,
1996			      struct ethtool_coalesce *ec)
1997{
1998	struct e1000_adapter *adapter = netdev_priv(netdev);
1999
2000	if ((ec->rx_coalesce_usecs > E1000_MAX_ITR_USECS) ||
2001	    ((ec->rx_coalesce_usecs > 4) &&
2002	     (ec->rx_coalesce_usecs < E1000_MIN_ITR_USECS)) ||
2003	    (ec->rx_coalesce_usecs == 2))
2004		return -EINVAL;
2005
2006	if (ec->rx_coalesce_usecs == 4) {
2007		adapter->itr_setting = 4;
2008		adapter->itr = adapter->itr_setting;
2009	} else if (ec->rx_coalesce_usecs <= 3) {
2010		adapter->itr = 20000;
2011		adapter->itr_setting = ec->rx_coalesce_usecs;
2012	} else {
2013		adapter->itr = (1000000 / ec->rx_coalesce_usecs);
2014		adapter->itr_setting = adapter->itr & ~3;
2015	}
2016
2017	pm_runtime_get_sync(netdev->dev.parent);
2018
2019	if (adapter->itr_setting != 0)
2020		e1000e_write_itr(adapter, adapter->itr);
2021	else
2022		e1000e_write_itr(adapter, 0);
2023
2024	pm_runtime_put_sync(netdev->dev.parent);
2025
2026	return 0;
2027}
2028
2029static int e1000_nway_reset(struct net_device *netdev)
2030{
2031	struct e1000_adapter *adapter = netdev_priv(netdev);
2032
2033	if (!netif_running(netdev))
2034		return -EAGAIN;
2035
2036	if (!adapter->hw.mac.autoneg)
2037		return -EINVAL;
2038
2039	pm_runtime_get_sync(netdev->dev.parent);
2040	e1000e_reinit_locked(adapter);
2041	pm_runtime_put_sync(netdev->dev.parent);
2042
2043	return 0;
2044}
2045
2046static void e1000_get_ethtool_stats(struct net_device *netdev,
2047				    struct ethtool_stats __always_unused *stats,
2048				    u64 *data)
2049{
2050	struct e1000_adapter *adapter = netdev_priv(netdev);
2051	struct rtnl_link_stats64 net_stats;
2052	int i;
2053	char *p = NULL;
2054
2055	pm_runtime_get_sync(netdev->dev.parent);
2056
2057	e1000e_get_stats64(netdev, &net_stats);
2058
2059	pm_runtime_put_sync(netdev->dev.parent);
2060
2061	for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
2062		switch (e1000_gstrings_stats[i].type) {
2063		case NETDEV_STATS:
2064			p = (char *)&net_stats +
2065			    e1000_gstrings_stats[i].stat_offset;
2066			break;
2067		case E1000_STATS:
2068			p = (char *)adapter +
2069			    e1000_gstrings_stats[i].stat_offset;
2070			break;
2071		default:
2072			data[i] = 0;
2073			continue;
2074		}
2075
2076		data[i] = (e1000_gstrings_stats[i].sizeof_stat ==
2077			   sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
2078	}
2079}
2080
2081static void e1000_get_strings(struct net_device __always_unused *netdev,
2082			      u32 stringset, u8 *data)
2083{
2084	u8 *p = data;
2085	int i;
2086
2087	switch (stringset) {
2088	case ETH_SS_TEST:
2089		memcpy(data, e1000_gstrings_test, sizeof(e1000_gstrings_test));
2090		break;
2091	case ETH_SS_STATS:
2092		for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
2093			memcpy(p, e1000_gstrings_stats[i].stat_string,
2094			       ETH_GSTRING_LEN);
2095			p += ETH_GSTRING_LEN;
2096		}
2097		break;
2098	}
2099}
2100
2101static int e1000_get_rxnfc(struct net_device *netdev,
2102			   struct ethtool_rxnfc *info,
2103			   u32 __always_unused *rule_locs)
2104{
2105	info->data = 0;
2106
2107	switch (info->cmd) {
2108	case ETHTOOL_GRXFH: {
2109		struct e1000_adapter *adapter = netdev_priv(netdev);
2110		struct e1000_hw *hw = &adapter->hw;
2111		u32 mrqc;
2112
2113		pm_runtime_get_sync(netdev->dev.parent);
2114		mrqc = er32(MRQC);
2115		pm_runtime_put_sync(netdev->dev.parent);
2116
2117		if (!(mrqc & E1000_MRQC_RSS_FIELD_MASK))
2118			return 0;
2119
2120		switch (info->flow_type) {
2121		case TCP_V4_FLOW:
2122			if (mrqc & E1000_MRQC_RSS_FIELD_IPV4_TCP)
2123				info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
2124			/* fall through */
2125		case UDP_V4_FLOW:
2126		case SCTP_V4_FLOW:
2127		case AH_ESP_V4_FLOW:
2128		case IPV4_FLOW:
2129			if (mrqc & E1000_MRQC_RSS_FIELD_IPV4)
2130				info->data |= RXH_IP_SRC | RXH_IP_DST;
2131			break;
2132		case TCP_V6_FLOW:
2133			if (mrqc & E1000_MRQC_RSS_FIELD_IPV6_TCP)
2134				info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
2135			/* fall through */
2136		case UDP_V6_FLOW:
2137		case SCTP_V6_FLOW:
2138		case AH_ESP_V6_FLOW:
2139		case IPV6_FLOW:
2140			if (mrqc & E1000_MRQC_RSS_FIELD_IPV6)
2141				info->data |= RXH_IP_SRC | RXH_IP_DST;
2142			break;
2143		default:
2144			break;
2145		}
2146		return 0;
2147	}
2148	default:
2149		return -EOPNOTSUPP;
2150	}
2151}
2152
2153static int e1000e_get_eee(struct net_device *netdev, struct ethtool_eee *edata)
2154{
2155	struct e1000_adapter *adapter = netdev_priv(netdev);
2156	struct e1000_hw *hw = &adapter->hw;
2157	u16 cap_addr, lpa_addr, pcs_stat_addr, phy_data;
2158	u32 ret_val;
2159
2160	if (!(adapter->flags2 & FLAG2_HAS_EEE))
2161		return -EOPNOTSUPP;
2162
2163	switch (hw->phy.type) {
2164	case e1000_phy_82579:
2165		cap_addr = I82579_EEE_CAPABILITY;
2166		lpa_addr = I82579_EEE_LP_ABILITY;
2167		pcs_stat_addr = I82579_EEE_PCS_STATUS;
2168		break;
2169	case e1000_phy_i217:
2170		cap_addr = I217_EEE_CAPABILITY;
2171		lpa_addr = I217_EEE_LP_ABILITY;
2172		pcs_stat_addr = I217_EEE_PCS_STATUS;
2173		break;
2174	default:
2175		return -EOPNOTSUPP;
2176	}
2177
2178	pm_runtime_get_sync(netdev->dev.parent);
2179
2180	ret_val = hw->phy.ops.acquire(hw);
2181	if (ret_val) {
2182		pm_runtime_put_sync(netdev->dev.parent);
2183		return -EBUSY;
2184	}
2185
2186	/* EEE Capability */
2187	ret_val = e1000_read_emi_reg_locked(hw, cap_addr, &phy_data);
2188	if (ret_val)
2189		goto release;
2190	edata->supported = mmd_eee_cap_to_ethtool_sup_t(phy_data);
2191
2192	/* EEE Advertised */
2193	edata->advertised = mmd_eee_adv_to_ethtool_adv_t(adapter->eee_advert);
2194
2195	/* EEE Link Partner Advertised */
2196	ret_val = e1000_read_emi_reg_locked(hw, lpa_addr, &phy_data);
2197	if (ret_val)
2198		goto release;
2199	edata->lp_advertised = mmd_eee_adv_to_ethtool_adv_t(phy_data);
2200
2201	/* EEE PCS Status */
2202	ret_val = e1000_read_emi_reg_locked(hw, pcs_stat_addr, &phy_data);
2203	if (ret_val)
2204		goto release;
2205	if (hw->phy.type == e1000_phy_82579)
2206		phy_data <<= 8;
2207
2208	/* Result of the EEE auto negotiation - there is no register that
2209	 * has the status of the EEE negotiation so do a best-guess based
2210	 * on whether Tx or Rx LPI indications have been received.
2211	 */
2212	if (phy_data & (E1000_EEE_TX_LPI_RCVD | E1000_EEE_RX_LPI_RCVD))
2213		edata->eee_active = true;
2214
2215	edata->eee_enabled = !hw->dev_spec.ich8lan.eee_disable;
2216	edata->tx_lpi_enabled = true;
2217	edata->tx_lpi_timer = er32(LPIC) >> E1000_LPIC_LPIET_SHIFT;
2218
2219release:
2220	hw->phy.ops.release(hw);
2221	if (ret_val)
2222		ret_val = -ENODATA;
2223
2224	pm_runtime_put_sync(netdev->dev.parent);
2225
2226	return ret_val;
2227}
2228
2229static int e1000e_set_eee(struct net_device *netdev, struct ethtool_eee *edata)
2230{
2231	struct e1000_adapter *adapter = netdev_priv(netdev);
2232	struct e1000_hw *hw = &adapter->hw;
2233	struct ethtool_eee eee_curr;
2234	s32 ret_val;
2235
2236	ret_val = e1000e_get_eee(netdev, &eee_curr);
2237	if (ret_val)
2238		return ret_val;
2239
2240	if (eee_curr.tx_lpi_enabled != edata->tx_lpi_enabled) {
2241		e_err("Setting EEE tx-lpi is not supported\n");
2242		return -EINVAL;
2243	}
2244
2245	if (eee_curr.tx_lpi_timer != edata->tx_lpi_timer) {
2246		e_err("Setting EEE Tx LPI timer is not supported\n");
2247		return -EINVAL;
2248	}
2249
2250	if (edata->advertised & ~(ADVERTISE_100_FULL | ADVERTISE_1000_FULL)) {
2251		e_err("EEE advertisement supports only 100TX and/or 1000T full-duplex\n");
2252		return -EINVAL;
2253	}
2254
2255	adapter->eee_advert = ethtool_adv_to_mmd_eee_adv_t(edata->advertised);
2256
2257	hw->dev_spec.ich8lan.eee_disable = !edata->eee_enabled;
2258
2259	pm_runtime_get_sync(netdev->dev.parent);
2260
2261	/* reset the link */
2262	if (netif_running(netdev))
2263		e1000e_reinit_locked(adapter);
2264	else
2265		e1000e_reset(adapter);
2266
2267	pm_runtime_put_sync(netdev->dev.parent);
2268
2269	return 0;
2270}
2271
2272static int e1000e_get_ts_info(struct net_device *netdev,
2273			      struct ethtool_ts_info *info)
2274{
2275	struct e1000_adapter *adapter = netdev_priv(netdev);
2276
2277	ethtool_op_get_ts_info(netdev, info);
2278
2279	if (!(adapter->flags & FLAG_HAS_HW_TIMESTAMP))
2280		return 0;
2281
2282	info->so_timestamping |= (SOF_TIMESTAMPING_TX_HARDWARE |
2283				  SOF_TIMESTAMPING_RX_HARDWARE |
2284				  SOF_TIMESTAMPING_RAW_HARDWARE);
2285
2286	info->tx_types = (1 << HWTSTAMP_TX_OFF) | (1 << HWTSTAMP_TX_ON);
2287
2288	info->rx_filters = ((1 << HWTSTAMP_FILTER_NONE) |
2289			    (1 << HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
2290			    (1 << HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
2291			    (1 << HWTSTAMP_FILTER_PTP_V2_L4_SYNC) |
2292			    (1 << HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ) |
2293			    (1 << HWTSTAMP_FILTER_PTP_V2_L2_SYNC) |
2294			    (1 << HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ) |
2295			    (1 << HWTSTAMP_FILTER_PTP_V2_EVENT) |
2296			    (1 << HWTSTAMP_FILTER_PTP_V2_SYNC) |
2297			    (1 << HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) |
2298			    (1 << HWTSTAMP_FILTER_ALL));
2299
2300	if (adapter->ptp_clock)
2301		info->phc_index = ptp_clock_index(adapter->ptp_clock);
2302
2303	return 0;
2304}
2305
2306static const struct ethtool_ops e1000_ethtool_ops = {
2307	.get_settings		= e1000_get_settings,
2308	.set_settings		= e1000_set_settings,
2309	.get_drvinfo		= e1000_get_drvinfo,
2310	.get_regs_len		= e1000_get_regs_len,
2311	.get_regs		= e1000_get_regs,
2312	.get_wol		= e1000_get_wol,
2313	.set_wol		= e1000_set_wol,
2314	.get_msglevel		= e1000_get_msglevel,
2315	.set_msglevel		= e1000_set_msglevel,
2316	.nway_reset		= e1000_nway_reset,
2317	.get_link		= ethtool_op_get_link,
2318	.get_eeprom_len		= e1000_get_eeprom_len,
2319	.get_eeprom		= e1000_get_eeprom,
2320	.set_eeprom		= e1000_set_eeprom,
2321	.get_ringparam		= e1000_get_ringparam,
2322	.set_ringparam		= e1000_set_ringparam,
2323	.get_pauseparam		= e1000_get_pauseparam,
2324	.set_pauseparam		= e1000_set_pauseparam,
2325	.self_test		= e1000_diag_test,
2326	.get_strings		= e1000_get_strings,
2327	.set_phys_id		= e1000_set_phys_id,
2328	.get_ethtool_stats	= e1000_get_ethtool_stats,
2329	.get_sset_count		= e1000e_get_sset_count,
2330	.get_coalesce		= e1000_get_coalesce,
2331	.set_coalesce		= e1000_set_coalesce,
2332	.get_rxnfc		= e1000_get_rxnfc,
2333	.get_ts_info		= e1000e_get_ts_info,
2334	.get_eee		= e1000e_get_eee,
2335	.set_eee		= e1000e_set_eee,
 
 
2336};
2337
2338void e1000e_set_ethtool_ops(struct net_device *netdev)
2339{
2340	netdev->ethtool_ops = &e1000_ethtool_ops;
2341}