Adding upstream version 6.1.76.upstream/6.1.76

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 2041 insertions, 0 deletions

diff --git a/drivers/net/ethernet/intel/igc/igc_ethtool.c b/drivers/net/ethernet/intel/igc/igc_ethtool.c
new file mode 100644
index 000000000..2bee9cace
--- /dev/null
+++ b/drivers/net/ethernet/intel/igc/igc_ethtool.c
@@ -0,0 +1,2041 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c)  2018 Intel Corporation */
+
+/* ethtool support for igc */
+#include <linux/if_vlan.h>
+#include <linux/pm_runtime.h>
+#include <linux/mdio.h>
+
+#include "igc.h"
+#include "igc_diag.h"
+
+/* forward declaration */
+struct igc_stats {
+	char stat_string[ETH_GSTRING_LEN];
+	int sizeof_stat;
+	int stat_offset;
+};
+
+#define IGC_STAT(_name, _stat) { \
+	.stat_string = _name, \
+	.sizeof_stat = sizeof_field(struct igc_adapter, _stat), \
+	.stat_offset = offsetof(struct igc_adapter, _stat) \
+}
+
+static const struct igc_stats igc_gstrings_stats[] = {
+	IGC_STAT("rx_packets", stats.gprc),
+	IGC_STAT("tx_packets", stats.gptc),
+	IGC_STAT("rx_bytes", stats.gorc),
+	IGC_STAT("tx_bytes", stats.gotc),
+	IGC_STAT("rx_broadcast", stats.bprc),
+	IGC_STAT("tx_broadcast", stats.bptc),
+	IGC_STAT("rx_multicast", stats.mprc),
+	IGC_STAT("tx_multicast", stats.mptc),
+	IGC_STAT("multicast", stats.mprc),
+	IGC_STAT("collisions", stats.colc),
+	IGC_STAT("rx_crc_errors", stats.crcerrs),
+	IGC_STAT("rx_no_buffer_count", stats.rnbc),
+	IGC_STAT("rx_missed_errors", stats.mpc),
+	IGC_STAT("tx_aborted_errors", stats.ecol),
+	IGC_STAT("tx_carrier_errors", stats.tncrs),
+	IGC_STAT("tx_window_errors", stats.latecol),
+	IGC_STAT("tx_abort_late_coll", stats.latecol),
+	IGC_STAT("tx_deferred_ok", stats.dc),
+	IGC_STAT("tx_single_coll_ok", stats.scc),
+	IGC_STAT("tx_multi_coll_ok", stats.mcc),
+	IGC_STAT("tx_timeout_count", tx_timeout_count),
+	IGC_STAT("rx_long_length_errors", stats.roc),
+	IGC_STAT("rx_short_length_errors", stats.ruc),
+	IGC_STAT("rx_align_errors", stats.algnerrc),
+	IGC_STAT("tx_tcp_seg_good", stats.tsctc),
+	IGC_STAT("tx_tcp_seg_failed", stats.tsctfc),
+	IGC_STAT("rx_flow_control_xon", stats.xonrxc),
+	IGC_STAT("rx_flow_control_xoff", stats.xoffrxc),
+	IGC_STAT("tx_flow_control_xon", stats.xontxc),
+	IGC_STAT("tx_flow_control_xoff", stats.xofftxc),
+	IGC_STAT("rx_long_byte_count", stats.gorc),
+	IGC_STAT("tx_dma_out_of_sync", stats.doosync),
+	IGC_STAT("tx_smbus", stats.mgptc),
+	IGC_STAT("rx_smbus", stats.mgprc),
+	IGC_STAT("dropped_smbus", stats.mgpdc),
+	IGC_STAT("os2bmc_rx_by_bmc", stats.o2bgptc),
+	IGC_STAT("os2bmc_tx_by_bmc", stats.b2ospc),
+	IGC_STAT("os2bmc_tx_by_host", stats.o2bspc),
+	IGC_STAT("os2bmc_rx_by_host", stats.b2ogprc),
+	IGC_STAT("tx_hwtstamp_timeouts", tx_hwtstamp_timeouts),
+	IGC_STAT("tx_hwtstamp_skipped", tx_hwtstamp_skipped),
+	IGC_STAT("rx_hwtstamp_cleared", rx_hwtstamp_cleared),
+	IGC_STAT("tx_lpi_counter", stats.tlpic),
+	IGC_STAT("rx_lpi_counter", stats.rlpic),
+	IGC_STAT("qbv_config_change_errors", qbv_config_change_errors),
+};
+
+#define IGC_NETDEV_STAT(_net_stat) { \
+	.stat_string = __stringify(_net_stat), \
+	.sizeof_stat = sizeof_field(struct rtnl_link_stats64, _net_stat), \
+	.stat_offset = offsetof(struct rtnl_link_stats64, _net_stat) \
+}
+
+static const struct igc_stats igc_gstrings_net_stats[] = {
+	IGC_NETDEV_STAT(rx_errors),
+	IGC_NETDEV_STAT(tx_errors),
+	IGC_NETDEV_STAT(tx_dropped),
+	IGC_NETDEV_STAT(rx_length_errors),
+	IGC_NETDEV_STAT(rx_over_errors),
+	IGC_NETDEV_STAT(rx_frame_errors),
+	IGC_NETDEV_STAT(rx_fifo_errors),
+	IGC_NETDEV_STAT(tx_fifo_errors),
+	IGC_NETDEV_STAT(tx_heartbeat_errors)
+};
+
+enum igc_diagnostics_results {
+	TEST_REG = 0,
+	TEST_EEP,
+	TEST_IRQ,
+	TEST_LOOP,
+	TEST_LINK
+};
+
+static const char igc_gstrings_test[][ETH_GSTRING_LEN] = {
+	[TEST_REG]  = "Register test  (offline)",
+	[TEST_EEP]  = "Eeprom test    (offline)",
+	[TEST_IRQ]  = "Interrupt test (offline)",
+	[TEST_LOOP] = "Loopback test  (offline)",
+	[TEST_LINK] = "Link test   (on/offline)"
+};
+
+#define IGC_TEST_LEN (sizeof(igc_gstrings_test) / ETH_GSTRING_LEN)
+
+#define IGC_GLOBAL_STATS_LEN	\
+	(sizeof(igc_gstrings_stats) / sizeof(struct igc_stats))
+#define IGC_NETDEV_STATS_LEN	\
+	(sizeof(igc_gstrings_net_stats) / sizeof(struct igc_stats))
+#define IGC_RX_QUEUE_STATS_LEN \
+	(sizeof(struct igc_rx_queue_stats) / sizeof(u64))
+#define IGC_TX_QUEUE_STATS_LEN 3 /* packets, bytes, restart_queue */
+#define IGC_QUEUE_STATS_LEN \
+	((((struct igc_adapter *)netdev_priv(netdev))->num_rx_queues * \
+	  IGC_RX_QUEUE_STATS_LEN) + \
+	 (((struct igc_adapter *)netdev_priv(netdev))->num_tx_queues * \
+	  IGC_TX_QUEUE_STATS_LEN))
+#define IGC_STATS_LEN \
+	(IGC_GLOBAL_STATS_LEN + IGC_NETDEV_STATS_LEN + IGC_QUEUE_STATS_LEN)
+
+static const char igc_priv_flags_strings[][ETH_GSTRING_LEN] = {
+#define IGC_PRIV_FLAGS_LEGACY_RX	BIT(0)
+	"legacy-rx",
+};
+
+#define IGC_PRIV_FLAGS_STR_LEN ARRAY_SIZE(igc_priv_flags_strings)
+
+static void igc_ethtool_get_drvinfo(struct net_device *netdev,
+				    struct ethtool_drvinfo *drvinfo)
+{
+	struct igc_adapter *adapter = netdev_priv(netdev);
+	struct igc_hw *hw = &adapter->hw;
+	u16 nvm_version = 0;
+	u16 gphy_version;
+
+	strscpy(drvinfo->driver, igc_driver_name, sizeof(drvinfo->driver));
+
+	/* NVM image version is reported as firmware version for i225 device */
+	hw->nvm.ops.read(hw, IGC_NVM_DEV_STARTER, 1, &nvm_version);
+
+	/* gPHY firmware version is reported as PHY FW version */
+	gphy_version = igc_read_phy_fw_version(hw);
+
+	scnprintf(adapter->fw_version,
+		  sizeof(adapter->fw_version),
+		  "%x:%x",
+		  nvm_version,
+		  gphy_version);
+
+	strscpy(drvinfo->fw_version, adapter->fw_version,
+		sizeof(drvinfo->fw_version));
+
+	strscpy(drvinfo->bus_info, pci_name(adapter->pdev),
+		sizeof(drvinfo->bus_info));
+
+	drvinfo->n_priv_flags = IGC_PRIV_FLAGS_STR_LEN;
+}
+
+static int igc_ethtool_get_regs_len(struct net_device *netdev)
+{
+	return IGC_REGS_LEN * sizeof(u32);
+}
+
+static void igc_ethtool_get_regs(struct net_device *netdev,
+				 struct ethtool_regs *regs, void *p)
+{
+	struct igc_adapter *adapter = netdev_priv(netdev);
+	struct igc_hw *hw = &adapter->hw;
+	u32 *regs_buff = p;
+	u8 i;
+
+	memset(p, 0, IGC_REGS_LEN * sizeof(u32));
+
+	regs->version = (2u << 24) | (hw->revision_id << 16) | hw->device_id;
+
+	/* General Registers */
+	regs_buff[0] = rd32(IGC_CTRL);
+	regs_buff[1] = rd32(IGC_STATUS);
+	regs_buff[2] = rd32(IGC_CTRL_EXT);
+	regs_buff[3] = rd32(IGC_MDIC);
+	regs_buff[4] = rd32(IGC_CONNSW);
+
+	/* NVM Register */
+	regs_buff[5] = rd32(IGC_EECD);
+
+	/* Interrupt */
+	/* Reading EICS for EICR because they read the
+	 * same but EICS does not clear on read
+	 */
+	regs_buff[6] = rd32(IGC_EICS);
+	regs_buff[7] = rd32(IGC_EICS);
+	regs_buff[8] = rd32(IGC_EIMS);
+	regs_buff[9] = rd32(IGC_EIMC);
+	regs_buff[10] = rd32(IGC_EIAC);
+	regs_buff[11] = rd32(IGC_EIAM);
+	/* Reading ICS for ICR because they read the
+	 * same but ICS does not clear on read
+	 */
+	regs_buff[12] = rd32(IGC_ICS);
+	regs_buff[13] = rd32(IGC_ICS);
+	regs_buff[14] = rd32(IGC_IMS);
+	regs_buff[15] = rd32(IGC_IMC);
+	regs_buff[16] = rd32(IGC_IAC);
+	regs_buff[17] = rd32(IGC_IAM);
+
+	/* Flow Control */
+	regs_buff[18] = rd32(IGC_FCAL);
+	regs_buff[19] = rd32(IGC_FCAH);
+	regs_buff[20] = rd32(IGC_FCTTV);
+	regs_buff[21] = rd32(IGC_FCRTL);
+	regs_buff[22] = rd32(IGC_FCRTH);
+	regs_buff[23] = rd32(IGC_FCRTV);
+
+	/* Receive */
+	regs_buff[24] = rd32(IGC_RCTL);
+	regs_buff[25] = rd32(IGC_RXCSUM);
+	regs_buff[26] = rd32(IGC_RLPML);
+	regs_buff[27] = rd32(IGC_RFCTL);
+
+	/* Transmit */
+	regs_buff[28] = rd32(IGC_TCTL);
+	regs_buff[29] = rd32(IGC_TIPG);
+
+	/* Wake Up */
+
+	/* MAC */
+
+	/* Statistics */
+	regs_buff[30] = adapter->stats.crcerrs;
+	regs_buff[31] = adapter->stats.algnerrc;
+	regs_buff[32] = adapter->stats.symerrs;
+	regs_buff[33] = adapter->stats.rxerrc;
+	regs_buff[34] = adapter->stats.mpc;
+	regs_buff[35] = adapter->stats.scc;
+	regs_buff[36] = adapter->stats.ecol;
+	regs_buff[37] = adapter->stats.mcc;
+	regs_buff[38] = adapter->stats.latecol;
+	regs_buff[39] = adapter->stats.colc;
+	regs_buff[40] = adapter->stats.dc;
+	regs_buff[41] = adapter->stats.tncrs;
+	regs_buff[42] = adapter->stats.sec;
+	regs_buff[43] = adapter->stats.htdpmc;
+	regs_buff[44] = adapter->stats.rlec;
+	regs_buff[45] = adapter->stats.xonrxc;
+	regs_buff[46] = adapter->stats.xontxc;
+	regs_buff[47] = adapter->stats.xoffrxc;
+	regs_buff[48] = adapter->stats.xofftxc;
+	regs_buff[49] = adapter->stats.fcruc;
+	regs_buff[50] = adapter->stats.prc64;
+	regs_buff[51] = adapter->stats.prc127;
+	regs_buff[52] = adapter->stats.prc255;
+	regs_buff[53] = adapter->stats.prc511;
+	regs_buff[54] = adapter->stats.prc1023;
+	regs_buff[55] = adapter->stats.prc1522;
+	regs_buff[56] = adapter->stats.gprc;
+	regs_buff[57] = adapter->stats.bprc;
+	regs_buff[58] = adapter->stats.mprc;
+	regs_buff[59] = adapter->stats.gptc;
+	regs_buff[60] = adapter->stats.gorc;
+	regs_buff[61] = adapter->stats.gotc;
+	regs_buff[62] = adapter->stats.rnbc;
+	regs_buff[63] = adapter->stats.ruc;
+	regs_buff[64] = adapter->stats.rfc;
+	regs_buff[65] = adapter->stats.roc;
+	regs_buff[66] = adapter->stats.rjc;
+	regs_buff[67] = adapter->stats.mgprc;
+	regs_buff[68] = adapter->stats.mgpdc;
+	regs_buff[69] = adapter->stats.mgptc;
+	regs_buff[70] = adapter->stats.tor;
+	regs_buff[71] = adapter->stats.tot;
+	regs_buff[72] = adapter->stats.tpr;
+	regs_buff[73] = adapter->stats.tpt;
+	regs_buff[74] = adapter->stats.ptc64;
+	regs_buff[75] = adapter->stats.ptc127;
+	regs_buff[76] = adapter->stats.ptc255;
+	regs_buff[77] = adapter->stats.ptc511;
+	regs_buff[78] = adapter->stats.ptc1023;
+	regs_buff[79] = adapter->stats.ptc1522;
+	regs_buff[80] = adapter->stats.mptc;
+	regs_buff[81] = adapter->stats.bptc;
+	regs_buff[82] = adapter->stats.tsctc;
+	regs_buff[83] = adapter->stats.iac;
+	regs_buff[84] = adapter->stats.rpthc;
+	regs_buff[85] = adapter->stats.hgptc;
+	regs_buff[86] = adapter->stats.hgorc;
+	regs_buff[87] = adapter->stats.hgotc;
+	regs_buff[88] = adapter->stats.lenerrs;
+	regs_buff[89] = adapter->stats.scvpc;
+	regs_buff[90] = adapter->stats.hrmpc;
+
+	for (i = 0; i < 4; i++)
+		regs_buff[91 + i] = rd32(IGC_SRRCTL(i));
+	for (i = 0; i < 4; i++)
+		regs_buff[95 + i] = rd32(IGC_PSRTYPE(i));
+	for (i = 0; i < 4; i++)
+		regs_buff[99 + i] = rd32(IGC_RDBAL(i));
+	for (i = 0; i < 4; i++)
+		regs_buff[103 + i] = rd32(IGC_RDBAH(i));
+	for (i = 0; i < 4; i++)
+		regs_buff[107 + i] = rd32(IGC_RDLEN(i));
+	for (i = 0; i < 4; i++)
+		regs_buff[111 + i] = rd32(IGC_RDH(i));
+	for (i = 0; i < 4; i++)
+		regs_buff[115 + i] = rd32(IGC_RDT(i));
+	for (i = 0; i < 4; i++)
+		regs_buff[119 + i] = rd32(IGC_RXDCTL(i));
+
+	for (i = 0; i < 10; i++)
+		regs_buff[123 + i] = rd32(IGC_EITR(i));
+	for (i = 0; i < 16; i++)
+		regs_buff[139 + i] = rd32(IGC_RAL(i));
+	for (i = 0; i < 16; i++)
+		regs_buff[145 + i] = rd32(IGC_RAH(i));
+
+	for (i = 0; i < 4; i++)
+		regs_buff[149 + i] = rd32(IGC_TDBAL(i));
+	for (i = 0; i < 4; i++)
+		regs_buff[152 + i] = rd32(IGC_TDBAH(i));
+	for (i = 0; i < 4; i++)
+		regs_buff[156 + i] = rd32(IGC_TDLEN(i));
+	for (i = 0; i < 4; i++)
+		regs_buff[160 + i] = rd32(IGC_TDH(i));
+	for (i = 0; i < 4; i++)
+		regs_buff[164 + i] = rd32(IGC_TDT(i));
+	for (i = 0; i < 4; i++)
+		regs_buff[168 + i] = rd32(IGC_TXDCTL(i));
+
+	/* XXX: Due to a bug few lines above, RAL and RAH registers are
+	 * overwritten. To preserve the ABI, we write these registers again in
+	 * regs_buff.
+	 */
+	for (i = 0; i < 16; i++)
+		regs_buff[172 + i] = rd32(IGC_RAL(i));
+	for (i = 0; i < 16; i++)
+		regs_buff[188 + i] = rd32(IGC_RAH(i));
+
+	regs_buff[204] = rd32(IGC_VLANPQF);
+
+	for (i = 0; i < 8; i++)
+		regs_buff[205 + i] = rd32(IGC_ETQF(i));
+
+	regs_buff[213] = adapter->stats.tlpic;
+	regs_buff[214] = adapter->stats.rlpic;
+}
+
+static void igc_ethtool_get_wol(struct net_device *netdev,
+				struct ethtool_wolinfo *wol)
+{
+	struct igc_adapter *adapter = netdev_priv(netdev);
+
+	wol->wolopts = 0;
+
+	if (!(adapter->flags & IGC_FLAG_WOL_SUPPORTED))
+		return;
+
+	wol->supported = WAKE_UCAST | WAKE_MCAST |
+			 WAKE_BCAST | WAKE_MAGIC |
+			 WAKE_PHY;
+
+	/* apply any specific unsupported masks here */
+	switch (adapter->hw.device_id) {
+	default:
+		break;
+	}
+
+	if (adapter->wol & IGC_WUFC_EX)
+		wol->wolopts |= WAKE_UCAST;
+	if (adapter->wol & IGC_WUFC_MC)
+		wol->wolopts |= WAKE_MCAST;
+	if (adapter->wol & IGC_WUFC_BC)
+		wol->wolopts |= WAKE_BCAST;
+	if (adapter->wol & IGC_WUFC_MAG)
+		wol->wolopts |= WAKE_MAGIC;
+	if (adapter->wol & IGC_WUFC_LNKC)
+		wol->wolopts |= WAKE_PHY;
+}
+
+static int igc_ethtool_set_wol(struct net_device *netdev,
+			       struct ethtool_wolinfo *wol)
+{
+	struct igc_adapter *adapter = netdev_priv(netdev);
+
+	if (wol->wolopts & (WAKE_ARP | WAKE_MAGICSECURE | WAKE_FILTER))
+		return -EOPNOTSUPP;
+
+	if (!(adapter->flags & IGC_FLAG_WOL_SUPPORTED))
+		return wol->wolopts ? -EOPNOTSUPP : 0;
+
+	/* these settings will always override what we currently have */
+	adapter->wol = 0;
+
+	if (wol->wolopts & WAKE_UCAST)
+		adapter->wol |= IGC_WUFC_EX;
+	if (wol->wolopts & WAKE_MCAST)
+		adapter->wol |= IGC_WUFC_MC;
+	if (wol->wolopts & WAKE_BCAST)
+		adapter->wol |= IGC_WUFC_BC;
+	if (wol->wolopts & WAKE_MAGIC)
+		adapter->wol |= IGC_WUFC_MAG;
+	if (wol->wolopts & WAKE_PHY)
+		adapter->wol |= IGC_WUFC_LNKC;
+	device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
+
+	return 0;
+}
+
+static u32 igc_ethtool_get_msglevel(struct net_device *netdev)
+{
+	struct igc_adapter *adapter = netdev_priv(netdev);
+
+	return adapter->msg_enable;
+}
+
+static void igc_ethtool_set_msglevel(struct net_device *netdev, u32 data)
+{
+	struct igc_adapter *adapter = netdev_priv(netdev);
+
+	adapter->msg_enable = data;
+}
+
+static int igc_ethtool_nway_reset(struct net_device *netdev)
+{
+	struct igc_adapter *adapter = netdev_priv(netdev);
+
+	if (netif_running(netdev))
+		igc_reinit_locked(adapter);
+	return 0;
+}
+
+static u32 igc_ethtool_get_link(struct net_device *netdev)
+{
+	struct igc_adapter *adapter = netdev_priv(netdev);
+	struct igc_mac_info *mac = &adapter->hw.mac;
+
+	/* If the link is not reported up to netdev, interrupts are disabled,
+	 * and so the physical link state may have changed since we last
+	 * looked. Set get_link_status to make sure that the true link
+	 * state is interrogated, rather than pulling a cached and possibly
+	 * stale link state from the driver.
+	 */
+	if (!netif_carrier_ok(netdev))
+		mac->get_link_status = 1;
+
+	return igc_has_link(adapter);
+}
+
+static int igc_ethtool_get_eeprom_len(struct net_device *netdev)
+{
+	struct igc_adapter *adapter = netdev_priv(netdev);
+
+	return adapter->hw.nvm.word_size * 2;
+}
+
+static int igc_ethtool_get_eeprom(struct net_device *netdev,
+				  struct ethtool_eeprom *eeprom, u8 *bytes)
+{
+	struct igc_adapter *adapter = netdev_priv(netdev);
+	struct igc_hw *hw = &adapter->hw;
+	int first_word, last_word;
+	u16 *eeprom_buff;
+	int ret_val = 0;
+	u16 i;
+
+	if (eeprom->len == 0)
+		return -EINVAL;
+
+	eeprom->magic = hw->vendor_id | (hw->device_id << 16);
+
+	first_word = eeprom->offset >> 1;
+	last_word = (eeprom->offset + eeprom->len - 1) >> 1;
+
+	eeprom_buff = kmalloc_array(last_word - first_word + 1, sizeof(u16),
+				    GFP_KERNEL);
+	if (!eeprom_buff)
+		return -ENOMEM;
+
+	if (hw->nvm.type == igc_nvm_eeprom_spi) {
+		ret_val = hw->nvm.ops.read(hw, first_word,
+					   last_word - first_word + 1,
+					   eeprom_buff);
+	} else {
+		for (i = 0; i < last_word - first_word + 1; i++) {
+			ret_val = hw->nvm.ops.read(hw, first_word + i, 1,
+						   &eeprom_buff[i]);
+			if (ret_val)
+				break;
+		}
+	}
+
+	/* Device's eeprom is always little-endian, word addressable */
+	for (i = 0; i < last_word - first_word + 1; i++)
+		le16_to_cpus(&eeprom_buff[i]);
+
+	memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1),
+	       eeprom->len);
+	kfree(eeprom_buff);
+
+	return ret_val;
+}
+
+static int igc_ethtool_set_eeprom(struct net_device *netdev,
+				  struct ethtool_eeprom *eeprom, u8 *bytes)
+{
+	struct igc_adapter *adapter = netdev_priv(netdev);
+	struct igc_hw *hw = &adapter->hw;
+	int max_len, first_word, last_word, ret_val = 0;
+	u16 *eeprom_buff;
+	void *ptr;
+	u16 i;
+
+	if (eeprom->len == 0)
+		return -EOPNOTSUPP;
+
+	if (hw->mac.type >= igc_i225 &&
+	    !igc_get_flash_presence_i225(hw)) {
+		return -EOPNOTSUPP;
+	}
+
+	if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16)))
+		return -EFAULT;
+
+	max_len = hw->nvm.word_size * 2;
+
+	first_word = eeprom->offset >> 1;
+	last_word = (eeprom->offset + eeprom->len - 1) >> 1;
+	eeprom_buff = kmalloc(max_len, GFP_KERNEL);
+	if (!eeprom_buff)
+		return -ENOMEM;
+
+	ptr = (void *)eeprom_buff;
+
+	if (eeprom->offset & 1) {
+		/* need read/modify/write of first changed EEPROM word
+		 * only the second byte of the word is being modified
+		 */
+		ret_val = hw->nvm.ops.read(hw, first_word, 1,
+					    &eeprom_buff[0]);
+		ptr++;
+	}
+	if (((eeprom->offset + eeprom->len) & 1) && ret_val == 0) {
+		/* need read/modify/write of last changed EEPROM word
+		 * only the first byte of the word is being modified
+		 */
+		ret_val = hw->nvm.ops.read(hw, last_word, 1,
+				   &eeprom_buff[last_word - first_word]);
+	}
+
+	/* Device's eeprom is always little-endian, word addressable */
+	for (i = 0; i < last_word - first_word + 1; i++)
+		le16_to_cpus(&eeprom_buff[i]);
+
+	memcpy(ptr, bytes, eeprom->len);
+
+	for (i = 0; i < last_word - first_word + 1; i++)
+		cpu_to_le16s(&eeprom_buff[i]);
+
+	ret_val = hw->nvm.ops.write(hw, first_word,
+				    last_word - first_word + 1, eeprom_buff);
+
+	/* Update the checksum if nvm write succeeded */
+	if (ret_val == 0)
+		hw->nvm.ops.update(hw);
+
+	kfree(eeprom_buff);
+	return ret_val;
+}
+
+static void
+igc_ethtool_get_ringparam(struct net_device *netdev,
+			  struct ethtool_ringparam *ring,
+			  struct kernel_ethtool_ringparam *kernel_ering,
+			  struct netlink_ext_ack *extack)
+{
+	struct igc_adapter *adapter = netdev_priv(netdev);
+
+	ring->rx_max_pending = IGC_MAX_RXD;
+	ring->tx_max_pending = IGC_MAX_TXD;
+	ring->rx_pending = adapter->rx_ring_count;
+	ring->tx_pending = adapter->tx_ring_count;
+}
+
+static int
+igc_ethtool_set_ringparam(struct net_device *netdev,
+			  struct ethtool_ringparam *ring,
+			  struct kernel_ethtool_ringparam *kernel_ering,
+			  struct netlink_ext_ack *extack)
+{
+	struct igc_adapter *adapter = netdev_priv(netdev);
+	struct igc_ring *temp_ring;
+	u16 new_rx_count, new_tx_count;
+	int i, err = 0;
+
+	if (ring->rx_mini_pending || ring->rx_jumbo_pending)
+		return -EINVAL;
+
+	new_rx_count = min_t(u32, ring->rx_pending, IGC_MAX_RXD);
+	new_rx_count = max_t(u16, new_rx_count, IGC_MIN_RXD);
+	new_rx_count = ALIGN(new_rx_count, REQ_RX_DESCRIPTOR_MULTIPLE);
+
+	new_tx_count = min_t(u32, ring->tx_pending, IGC_MAX_TXD);
+	new_tx_count = max_t(u16, new_tx_count, IGC_MIN_TXD);
+	new_tx_count = ALIGN(new_tx_count, REQ_TX_DESCRIPTOR_MULTIPLE);
+
+	if (new_tx_count == adapter->tx_ring_count &&
+	    new_rx_count == adapter->rx_ring_count) {
+		/* nothing to do */
+		return 0;
+	}
+
+	while (test_and_set_bit(__IGC_RESETTING, &adapter->state))
+		usleep_range(1000, 2000);
+
+	if (!netif_running(adapter->netdev)) {
+		for (i = 0; i < adapter->num_tx_queues; i++)
+			adapter->tx_ring[i]->count = new_tx_count;
+		for (i = 0; i < adapter->num_rx_queues; i++)
+			adapter->rx_ring[i]->count = new_rx_count;
+		adapter->tx_ring_count = new_tx_count;
+		adapter->rx_ring_count = new_rx_count;
+		goto clear_reset;
+	}
+
+	if (adapter->num_tx_queues > adapter->num_rx_queues)
+		temp_ring = vmalloc(array_size(sizeof(struct igc_ring),
+					       adapter->num_tx_queues));
+	else
+		temp_ring = vmalloc(array_size(sizeof(struct igc_ring),
+					       adapter->num_rx_queues));
+
+	if (!temp_ring) {
+		err = -ENOMEM;
+		goto clear_reset;
+	}
+
+	igc_down(adapter);
+
+	/* We can't just free everything and then setup again,
+	 * because the ISRs in MSI-X mode get passed pointers
+	 * to the Tx and Rx ring structs.
+	 */
+	if (new_tx_count != adapter->tx_ring_count) {
+		for (i = 0; i < adapter->num_tx_queues; i++) {
+			memcpy(&temp_ring[i], adapter->tx_ring[i],
+			       sizeof(struct igc_ring));
+
+			temp_ring[i].count = new_tx_count;
+			err = igc_setup_tx_resources(&temp_ring[i]);
+			if (err) {
+				while (i) {
+					i--;
+					igc_free_tx_resources(&temp_ring[i]);
+				}
+				goto err_setup;
+			}
+		}
+
+		for (i = 0; i < adapter->num_tx_queues; i++) {
+			igc_free_tx_resources(adapter->tx_ring[i]);
+
+			memcpy(adapter->tx_ring[i], &temp_ring[i],
+			       sizeof(struct igc_ring));
+		}
+
+		adapter->tx_ring_count = new_tx_count;
+	}
+
+	if (new_rx_count != adapter->rx_ring_count) {
+		for (i = 0; i < adapter->num_rx_queues; i++) {
+			memcpy(&temp_ring[i], adapter->rx_ring[i],
+			       sizeof(struct igc_ring));
+
+			temp_ring[i].count = new_rx_count;
+			err = igc_setup_rx_resources(&temp_ring[i]);
+			if (err) {
+				while (i) {
+					i--;
+					igc_free_rx_resources(&temp_ring[i]);
+				}
+				goto err_setup;
+			}
+		}
+
+		for (i = 0; i < adapter->num_rx_queues; i++) {
+			igc_free_rx_resources(adapter->rx_ring[i]);
+
+			memcpy(adapter->rx_ring[i], &temp_ring[i],
+			       sizeof(struct igc_ring));
+		}
+
+		adapter->rx_ring_count = new_rx_count;
+	}
+err_setup:
+	igc_up(adapter);
+	vfree(temp_ring);
+clear_reset:
+	clear_bit(__IGC_RESETTING, &adapter->state);
+	return err;
+}
+
+static void igc_ethtool_get_pauseparam(struct net_device *netdev,
+				       struct ethtool_pauseparam *pause)
+{
+	struct igc_adapter *adapter = netdev_priv(netdev);
+	struct igc_hw *hw = &adapter->hw;
+
+	pause->autoneg =
+		(adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE);
+
+	if (hw->fc.current_mode == igc_fc_rx_pause) {
+		pause->rx_pause = 1;
+	} else if (hw->fc.current_mode == igc_fc_tx_pause) {
+		pause->tx_pause = 1;
+	} else if (hw->fc.current_mode == igc_fc_full) {
+		pause->rx_pause = 1;
+		pause->tx_pause = 1;
+	}
+}
+
+static int igc_ethtool_set_pauseparam(struct net_device *netdev,
+				      struct ethtool_pauseparam *pause)
+{
+	struct igc_adapter *adapter = netdev_priv(netdev);
+	struct igc_hw *hw = &adapter->hw;
+	int retval = 0;
+
+	adapter->fc_autoneg = pause->autoneg;
+
+	while (test_and_set_bit(__IGC_RESETTING, &adapter->state))
+		usleep_range(1000, 2000);
+
+	if (adapter->fc_autoneg == AUTONEG_ENABLE) {
+		hw->fc.requested_mode = igc_fc_default;
+		if (netif_running(adapter->netdev)) {
+			igc_down(adapter);
+			igc_up(adapter);
+		} else {
+			igc_reset(adapter);
+		}
+	} else {
+		if (pause->rx_pause && pause->tx_pause)
+			hw->fc.requested_mode = igc_fc_full;
+		else if (pause->rx_pause && !pause->tx_pause)
+			hw->fc.requested_mode = igc_fc_rx_pause;
+		else if (!pause->rx_pause && pause->tx_pause)
+			hw->fc.requested_mode = igc_fc_tx_pause;
+		else if (!pause->rx_pause && !pause->tx_pause)
+			hw->fc.requested_mode = igc_fc_none;
+
+		hw->fc.current_mode = hw->fc.requested_mode;
+
+		retval = ((hw->phy.media_type == igc_media_type_copper) ?
+			  igc_force_mac_fc(hw) : igc_setup_link(hw));
+	}
+
+	clear_bit(__IGC_RESETTING, &adapter->state);
+	return retval;
+}
+
+static void igc_ethtool_get_strings(struct net_device *netdev, u32 stringset,
+				    u8 *data)
+{
+	struct igc_adapter *adapter = netdev_priv(netdev);
+	u8 *p = data;
+	int i;
+
+	switch (stringset) {
+	case ETH_SS_TEST:
+		memcpy(data, *igc_gstrings_test,
+		       IGC_TEST_LEN * ETH_GSTRING_LEN);
+		break;
+	case ETH_SS_STATS:
+		for (i = 0; i < IGC_GLOBAL_STATS_LEN; i++)
+			ethtool_sprintf(&p, igc_gstrings_stats[i].stat_string);
+		for (i = 0; i < IGC_NETDEV_STATS_LEN; i++)
+			ethtool_sprintf(&p,
+					igc_gstrings_net_stats[i].stat_string);
+		for (i = 0; i < adapter->num_tx_queues; i++) {
+			ethtool_sprintf(&p, "tx_queue_%u_packets", i);
+			ethtool_sprintf(&p, "tx_queue_%u_bytes", i);
+			ethtool_sprintf(&p, "tx_queue_%u_restart", i);
+		}
+		for (i = 0; i < adapter->num_rx_queues; i++) {
+			ethtool_sprintf(&p, "rx_queue_%u_packets", i);
+			ethtool_sprintf(&p, "rx_queue_%u_bytes", i);
+			ethtool_sprintf(&p, "rx_queue_%u_drops", i);
+			ethtool_sprintf(&p, "rx_queue_%u_csum_err", i);
+			ethtool_sprintf(&p, "rx_queue_%u_alloc_failed", i);
+		}
+		/* BUG_ON(p - data != IGC_STATS_LEN * ETH_GSTRING_LEN); */
+		break;
+	case ETH_SS_PRIV_FLAGS:
+		memcpy(data, igc_priv_flags_strings,
+		       IGC_PRIV_FLAGS_STR_LEN * ETH_GSTRING_LEN);
+		break;
+	}
+}
+
+static int igc_ethtool_get_sset_count(struct net_device *netdev, int sset)
+{
+	switch (sset) {
+	case ETH_SS_STATS:
+		return IGC_STATS_LEN;
+	case ETH_SS_TEST:
+		return IGC_TEST_LEN;
+	case ETH_SS_PRIV_FLAGS:
+		return IGC_PRIV_FLAGS_STR_LEN;
+	default:
+		return -ENOTSUPP;
+	}
+}
+
+static void igc_ethtool_get_stats(struct net_device *netdev,
+				  struct ethtool_stats *stats, u64 *data)
+{
+	struct igc_adapter *adapter = netdev_priv(netdev);
+	struct rtnl_link_stats64 *net_stats = &adapter->stats64;
+	unsigned int start;
+	struct igc_ring *ring;
+	int i, j;
+	char *p;
+
+	spin_lock(&adapter->stats64_lock);
+	igc_update_stats(adapter);
+
+	for (i = 0; i < IGC_GLOBAL_STATS_LEN; i++) {
+		p = (char *)adapter + igc_gstrings_stats[i].stat_offset;
+		data[i] = (igc_gstrings_stats[i].sizeof_stat ==
+			sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
+	}
+	for (j = 0; j < IGC_NETDEV_STATS_LEN; j++, i++) {
+		p = (char *)net_stats + igc_gstrings_net_stats[j].stat_offset;
+		data[i] = (igc_gstrings_net_stats[j].sizeof_stat ==
+			sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
+	}
+	for (j = 0; j < adapter->num_tx_queues; j++) {
+		u64	restart2;
+
+		ring = adapter->tx_ring[j];
+		do {
+			start = u64_stats_fetch_begin_irq(&ring->tx_syncp);
+			data[i]   = ring->tx_stats.packets;
+			data[i + 1] = ring->tx_stats.bytes;
+			data[i + 2] = ring->tx_stats.restart_queue;
+		} while (u64_stats_fetch_retry_irq(&ring->tx_syncp, start));
+		do {
+			start = u64_stats_fetch_begin_irq(&ring->tx_syncp2);
+			restart2  = ring->tx_stats.restart_queue2;
+		} while (u64_stats_fetch_retry_irq(&ring->tx_syncp2, start));
+		data[i + 2] += restart2;
+
+		i += IGC_TX_QUEUE_STATS_LEN;
+	}
+	for (j = 0; j < adapter->num_rx_queues; j++) {
+		ring = adapter->rx_ring[j];
+		do {
+			start = u64_stats_fetch_begin_irq(&ring->rx_syncp);
+			data[i]   = ring->rx_stats.packets;
+			data[i + 1] = ring->rx_stats.bytes;
+			data[i + 2] = ring->rx_stats.drops;
+			data[i + 3] = ring->rx_stats.csum_err;
+			data[i + 4] = ring->rx_stats.alloc_failed;
+		} while (u64_stats_fetch_retry_irq(&ring->rx_syncp, start));
+		i += IGC_RX_QUEUE_STATS_LEN;
+	}
+	spin_unlock(&adapter->stats64_lock);
+}
+
+static int igc_ethtool_get_previous_rx_coalesce(struct igc_adapter *adapter)
+{
+	return (adapter->rx_itr_setting <= 3) ?
+		adapter->rx_itr_setting : adapter->rx_itr_setting >> 2;
+}
+
+static int igc_ethtool_get_previous_tx_coalesce(struct igc_adapter *adapter)
+{
+	return (adapter->tx_itr_setting <= 3) ?
+		adapter->tx_itr_setting : adapter->tx_itr_setting >> 2;
+}
+
+static int igc_ethtool_get_coalesce(struct net_device *netdev,
+				    struct ethtool_coalesce *ec,
+				    struct kernel_ethtool_coalesce *kernel_coal,
+				    struct netlink_ext_ack *extack)
+{
+	struct igc_adapter *adapter = netdev_priv(netdev);
+
+	ec->rx_coalesce_usecs = igc_ethtool_get_previous_rx_coalesce(adapter);
+	ec->tx_coalesce_usecs = igc_ethtool_get_previous_tx_coalesce(adapter);
+
+	return 0;
+}
+
+static int igc_ethtool_set_coalesce(struct net_device *netdev,
+				    struct ethtool_coalesce *ec,
+				    struct kernel_ethtool_coalesce *kernel_coal,
+				    struct netlink_ext_ack *extack)
+{
+	struct igc_adapter *adapter = netdev_priv(netdev);
+	int i;
+
+	if (ec->rx_coalesce_usecs > IGC_MAX_ITR_USECS ||
+	    (ec->rx_coalesce_usecs > 3 &&
+	     ec->rx_coalesce_usecs < IGC_MIN_ITR_USECS) ||
+	    ec->rx_coalesce_usecs == 2)
+		return -EINVAL;
+
+	if (ec->tx_coalesce_usecs > IGC_MAX_ITR_USECS ||
+	    (ec->tx_coalesce_usecs > 3 &&
+	     ec->tx_coalesce_usecs < IGC_MIN_ITR_USECS) ||
+	    ec->tx_coalesce_usecs == 2)
+		return -EINVAL;
+
+	if ((adapter->flags & IGC_FLAG_QUEUE_PAIRS) &&
+	    ec->tx_coalesce_usecs != igc_ethtool_get_previous_tx_coalesce(adapter)) {
+		NL_SET_ERR_MSG_MOD(extack,
+				   "Queue Pair mode enabled, both Rx and Tx coalescing controlled by rx-usecs");
+		return -EINVAL;
+	}
+
+	/* If ITR is disabled, disable DMAC */
+	if (ec->rx_coalesce_usecs == 0) {
+		if (adapter->flags & IGC_FLAG_DMAC)
+			adapter->flags &= ~IGC_FLAG_DMAC;
+	}
+
+	/* convert to rate of irq's per second */
+	if (ec->rx_coalesce_usecs && ec->rx_coalesce_usecs <= 3)
+		adapter->rx_itr_setting = ec->rx_coalesce_usecs;
+	else
+		adapter->rx_itr_setting = ec->rx_coalesce_usecs << 2;
+
+	/* convert to rate of irq's per second */
+	if (adapter->flags & IGC_FLAG_QUEUE_PAIRS)
+		adapter->tx_itr_setting = adapter->rx_itr_setting;
+	else if (ec->tx_coalesce_usecs && ec->tx_coalesce_usecs <= 3)
+		adapter->tx_itr_setting = ec->tx_coalesce_usecs;
+	else
+		adapter->tx_itr_setting = ec->tx_coalesce_usecs << 2;
+
+	for (i = 0; i < adapter->num_q_vectors; i++) {
+		struct igc_q_vector *q_vector = adapter->q_vector[i];
+
+		q_vector->tx.work_limit = adapter->tx_work_limit;
+		if (q_vector->rx.ring)
+			q_vector->itr_val = adapter->rx_itr_setting;
+		else
+			q_vector->itr_val = adapter->tx_itr_setting;
+		if (q_vector->itr_val && q_vector->itr_val <= 3)
+			q_vector->itr_val = IGC_START_ITR;
+		q_vector->set_itr = 1;
+	}
+
+	return 0;
+}
+
+#define ETHER_TYPE_FULL_MASK ((__force __be16)~0)
+#define VLAN_TCI_FULL_MASK ((__force __be16)~0)
+static int igc_ethtool_get_nfc_rule(struct igc_adapter *adapter,
+				    struct ethtool_rxnfc *cmd)
+{
+	struct ethtool_rx_flow_spec *fsp = &cmd->fs;
+	struct igc_nfc_rule *rule = NULL;
+
+	cmd->data = IGC_MAX_RXNFC_RULES;
+
+	mutex_lock(&adapter->nfc_rule_lock);
+
+	rule = igc_get_nfc_rule(adapter, fsp->location);
+	if (!rule)
+		goto out;
+
+	fsp->flow_type = ETHER_FLOW;
+	fsp->ring_cookie = rule->action;
+
+	if (rule->filter.match_flags & IGC_FILTER_FLAG_ETHER_TYPE) {
+		fsp->h_u.ether_spec.h_proto = htons(rule->filter.etype);
+		fsp->m_u.ether_spec.h_proto = ETHER_TYPE_FULL_MASK;
+	}
+
+	if (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_ETYPE) {
+		fsp->flow_type |= FLOW_EXT;
+		fsp->h_ext.vlan_etype = rule->filter.vlan_etype;
+		fsp->m_ext.vlan_etype = ETHER_TYPE_FULL_MASK;
+	}
+
+	if (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_TCI) {
+		fsp->flow_type |= FLOW_EXT;
+		fsp->h_ext.vlan_tci = htons(rule->filter.vlan_tci);
+		fsp->m_ext.vlan_tci = htons(rule->filter.vlan_tci_mask);
+	}
+
+	if (rule->filter.match_flags & IGC_FILTER_FLAG_DST_MAC_ADDR) {
+		ether_addr_copy(fsp->h_u.ether_spec.h_dest,
+				rule->filter.dst_addr);
+		eth_broadcast_addr(fsp->m_u.ether_spec.h_dest);
+	}
+
+	if (rule->filter.match_flags & IGC_FILTER_FLAG_SRC_MAC_ADDR) {
+		ether_addr_copy(fsp->h_u.ether_spec.h_source,
+				rule->filter.src_addr);
+		eth_broadcast_addr(fsp->m_u.ether_spec.h_source);
+	}
+
+	if (rule->filter.match_flags & IGC_FILTER_FLAG_USER_DATA) {
+		fsp->flow_type |= FLOW_EXT;
+		memcpy(fsp->h_ext.data, rule->filter.user_data, sizeof(fsp->h_ext.data));
+		memcpy(fsp->m_ext.data, rule->filter.user_mask, sizeof(fsp->m_ext.data));
+	}
+
+	mutex_unlock(&adapter->nfc_rule_lock);
+	return 0;
+
+out:
+	mutex_unlock(&adapter->nfc_rule_lock);
+	return -EINVAL;
+}
+
+static int igc_ethtool_get_nfc_rules(struct igc_adapter *adapter,
+				     struct ethtool_rxnfc *cmd,
+				     u32 *rule_locs)
+{
+	struct igc_nfc_rule *rule;
+	int cnt = 0;
+
+	cmd->data = IGC_MAX_RXNFC_RULES;
+
+	mutex_lock(&adapter->nfc_rule_lock);
+
+	list_for_each_entry(rule, &adapter->nfc_rule_list, list) {
+		if (cnt == cmd->rule_cnt) {
+			mutex_unlock(&adapter->nfc_rule_lock);
+			return -EMSGSIZE;
+		}
+		rule_locs[cnt] = rule->location;
+		cnt++;
+	}
+
+	mutex_unlock(&adapter->nfc_rule_lock);
+
+	cmd->rule_cnt = cnt;
+
+	return 0;
+}
+
+static int igc_ethtool_get_rss_hash_opts(struct igc_adapter *adapter,
+					 struct ethtool_rxnfc *cmd)
+{
+	cmd->data = 0;
+
+	/* Report default options for RSS on igc */
+	switch (cmd->flow_type) {
+	case TCP_V4_FLOW:
+		cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
+		fallthrough;
+	case UDP_V4_FLOW:
+		if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV4_UDP)
+			cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
+		fallthrough;
+	case SCTP_V4_FLOW:
+	case AH_ESP_V4_FLOW:
+	case AH_V4_FLOW:
+	case ESP_V4_FLOW:
+	case IPV4_FLOW:
+		cmd->data |= RXH_IP_SRC | RXH_IP_DST;
+		break;
+	case TCP_V6_FLOW:
+		cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
+		fallthrough;
+	case UDP_V6_FLOW:
+		if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV6_UDP)
+			cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
+		fallthrough;
+	case SCTP_V6_FLOW:
+	case AH_ESP_V6_FLOW:
+	case AH_V6_FLOW:
+	case ESP_V6_FLOW:
+	case IPV6_FLOW:
+		cmd->data |= RXH_IP_SRC | RXH_IP_DST;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int igc_ethtool_get_rxnfc(struct net_device *dev,
+				 struct ethtool_rxnfc *cmd, u32 *rule_locs)
+{
+	struct igc_adapter *adapter = netdev_priv(dev);
+
+	switch (cmd->cmd) {
+	case ETHTOOL_GRXRINGS:
+		cmd->data = adapter->num_rx_queues;
+		return 0;
+	case ETHTOOL_GRXCLSRLCNT:
+		cmd->rule_cnt = adapter->nfc_rule_count;
+		return 0;
+	case ETHTOOL_GRXCLSRULE:
+		return igc_ethtool_get_nfc_rule(adapter, cmd);
+	case ETHTOOL_GRXCLSRLALL:
+		return igc_ethtool_get_nfc_rules(adapter, cmd, rule_locs);
+	case ETHTOOL_GRXFH:
+		return igc_ethtool_get_rss_hash_opts(adapter, cmd);
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
+#define UDP_RSS_FLAGS (IGC_FLAG_RSS_FIELD_IPV4_UDP | \
+		       IGC_FLAG_RSS_FIELD_IPV6_UDP)
+static int igc_ethtool_set_rss_hash_opt(struct igc_adapter *adapter,
+					struct ethtool_rxnfc *nfc)
+{
+	u32 flags = adapter->flags;
+
+	/* RSS does not support anything other than hashing
+	 * to queues on src and dst IPs and ports
+	 */
+	if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
+			  RXH_L4_B_0_1 | RXH_L4_B_2_3))
+		return -EINVAL;
+
+	switch (nfc->flow_type) {
+	case TCP_V4_FLOW:
+	case TCP_V6_FLOW:
+		if (!(nfc->data & RXH_IP_SRC) ||
+		    !(nfc->data & RXH_IP_DST) ||
+		    !(nfc->data & RXH_L4_B_0_1) ||
+		    !(nfc->data & RXH_L4_B_2_3))
+			return -EINVAL;
+		break;
+	case UDP_V4_FLOW:
+		if (!(nfc->data & RXH_IP_SRC) ||
+		    !(nfc->data & RXH_IP_DST))
+			return -EINVAL;
+		switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
+		case 0:
+			flags &= ~IGC_FLAG_RSS_FIELD_IPV4_UDP;
+			break;
+		case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
+			flags |= IGC_FLAG_RSS_FIELD_IPV4_UDP;
+			break;
+		default:
+			return -EINVAL;
+		}
+		break;
+	case UDP_V6_FLOW:
+		if (!(nfc->data & RXH_IP_SRC) ||
+		    !(nfc->data & RXH_IP_DST))
+			return -EINVAL;
+		switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
+		case 0:
+			flags &= ~IGC_FLAG_RSS_FIELD_IPV6_UDP;
+			break;
+		case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
+			flags |= IGC_FLAG_RSS_FIELD_IPV6_UDP;
+			break;
+		default:
+			return -EINVAL;
+		}
+		break;
+	case AH_ESP_V4_FLOW:
+	case AH_V4_FLOW:
+	case ESP_V4_FLOW:
+	case SCTP_V4_FLOW:
+	case AH_ESP_V6_FLOW:
+	case AH_V6_FLOW:
+	case ESP_V6_FLOW:
+	case SCTP_V6_FLOW:
+		if (!(nfc->data & RXH_IP_SRC) ||
+		    !(nfc->data & RXH_IP_DST) ||
+		    (nfc->data & RXH_L4_B_0_1) ||
+		    (nfc->data & RXH_L4_B_2_3))
+			return -EINVAL;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	/* if we changed something we need to update flags */
+	if (flags != adapter->flags) {
+		struct igc_hw *hw = &adapter->hw;
+		u32 mrqc = rd32(IGC_MRQC);
+
+		if ((flags & UDP_RSS_FLAGS) &&
+		    !(adapter->flags & UDP_RSS_FLAGS))
+			netdev_err(adapter->netdev,
+				   "Enabling UDP RSS: fragmented packets may arrive out of order to the stack above\n");
+
+		adapter->flags = flags;
+
+		/* Perform hash on these packet types */
+		mrqc |= IGC_MRQC_RSS_FIELD_IPV4 |
+			IGC_MRQC_RSS_FIELD_IPV4_TCP |
+			IGC_MRQC_RSS_FIELD_IPV6 |
+			IGC_MRQC_RSS_FIELD_IPV6_TCP;
+
+		mrqc &= ~(IGC_MRQC_RSS_FIELD_IPV4_UDP |
+			  IGC_MRQC_RSS_FIELD_IPV6_UDP);
+
+		if (flags & IGC_FLAG_RSS_FIELD_IPV4_UDP)
+			mrqc |= IGC_MRQC_RSS_FIELD_IPV4_UDP;
+
+		if (flags & IGC_FLAG_RSS_FIELD_IPV6_UDP)
+			mrqc |= IGC_MRQC_RSS_FIELD_IPV6_UDP;
+
+		wr32(IGC_MRQC, mrqc);
+	}
+
+	return 0;
+}
+
+static void igc_ethtool_init_nfc_rule(struct igc_nfc_rule *rule,
+				      const struct ethtool_rx_flow_spec *fsp)
+{
+	INIT_LIST_HEAD(&rule->list);
+
+	rule->action = fsp->ring_cookie;
+	rule->location = fsp->location;
+
+	if ((fsp->flow_type & FLOW_EXT) && fsp->m_ext.vlan_tci) {
+		rule->filter.vlan_tci = ntohs(fsp->h_ext.vlan_tci);
+		rule->filter.vlan_tci_mask = ntohs(fsp->m_ext.vlan_tci);
+		rule->filter.match_flags |= IGC_FILTER_FLAG_VLAN_TCI;
+	}
+
+	if (fsp->m_u.ether_spec.h_proto == ETHER_TYPE_FULL_MASK) {
+		rule->filter.etype = ntohs(fsp->h_u.ether_spec.h_proto);
+		rule->filter.match_flags = IGC_FILTER_FLAG_ETHER_TYPE;
+	}
+
+	/* Both source and destination address filters only support the full
+	 * mask.
+	 */
+	if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_source)) {
+		rule->filter.match_flags |= IGC_FILTER_FLAG_SRC_MAC_ADDR;
+		ether_addr_copy(rule->filter.src_addr,
+				fsp->h_u.ether_spec.h_source);
+	}
+
+	if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_dest)) {
+		rule->filter.match_flags |= IGC_FILTER_FLAG_DST_MAC_ADDR;
+		ether_addr_copy(rule->filter.dst_addr,
+				fsp->h_u.ether_spec.h_dest);
+	}
+
+	/* VLAN etype matching */
+	if ((fsp->flow_type & FLOW_EXT) && fsp->h_ext.vlan_etype) {
+		rule->filter.vlan_etype = fsp->h_ext.vlan_etype;
+		rule->filter.match_flags |= IGC_FILTER_FLAG_VLAN_ETYPE;
+	}
+
+	/* Check for user defined data */
+	if ((fsp->flow_type & FLOW_EXT) &&
+	    (fsp->h_ext.data[0] || fsp->h_ext.data[1])) {
+		rule->filter.match_flags |= IGC_FILTER_FLAG_USER_DATA;
+		memcpy(rule->filter.user_data, fsp->h_ext.data, sizeof(fsp->h_ext.data));
+		memcpy(rule->filter.user_mask, fsp->m_ext.data, sizeof(fsp->m_ext.data));
+	}
+
+	/* The i225/i226 has various different filters. Flex filters provide a
+	 * way to match up to the first 128 bytes of a packet. Use them for:
+	 *   a) For specific user data
+	 *   b) For VLAN EtherType
+	 *   c) For full TCI match
+	 *   d) Or in case multiple filter criteria are set
+	 *
+	 * Otherwise, use the simple MAC, VLAN PRIO or EtherType filters.
+	 */
+	if ((rule->filter.match_flags & IGC_FILTER_FLAG_USER_DATA) ||
+	    (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_ETYPE) ||
+	    ((rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_TCI) &&
+	     rule->filter.vlan_tci_mask == ntohs(VLAN_TCI_FULL_MASK)) ||
+	    (rule->filter.match_flags & (rule->filter.match_flags - 1)))
+		rule->flex = true;
+	else
+		rule->flex = false;
+}
+
+/**
+ * igc_ethtool_check_nfc_rule() - Check if NFC rule is valid
+ * @adapter: Pointer to adapter
+ * @rule: Rule under evaluation
+ *
+ * The driver doesn't support rules with multiple matches so if more than
+ * one bit in filter flags is set, @rule is considered invalid.
+ *
+ * Also, if there is already another rule with the same filter in a different
+ * location, @rule is considered invalid.
+ *
+ * Context: Expects adapter->nfc_rule_lock to be held by caller.
+ *
+ * Return: 0 in case of success, negative errno code otherwise.
+ */
+static int igc_ethtool_check_nfc_rule(struct igc_adapter *adapter,
+				      struct igc_nfc_rule *rule)
+{
+	struct net_device *dev = adapter->netdev;
+	u8 flags = rule->filter.match_flags;
+	struct igc_nfc_rule *tmp;
+
+	if (!flags) {
+		netdev_dbg(dev, "Rule with no match\n");
+		return -EINVAL;
+	}
+
+	list_for_each_entry(tmp, &adapter->nfc_rule_list, list) {
+		if (!memcmp(&rule->filter, &tmp->filter,
+			    sizeof(rule->filter)) &&
+		    tmp->location != rule->location) {
+			netdev_dbg(dev, "Rule already exists\n");
+			return -EEXIST;
+		}
+	}
+
+	return 0;
+}
+
+static int igc_ethtool_add_nfc_rule(struct igc_adapter *adapter,
+				    struct ethtool_rxnfc *cmd)
+{
+	struct net_device *netdev = adapter->netdev;
+	struct ethtool_rx_flow_spec *fsp =
+		(struct ethtool_rx_flow_spec *)&cmd->fs;
+	struct igc_nfc_rule *rule, *old_rule;
+	int err;
+
+	if (!(netdev->hw_features & NETIF_F_NTUPLE)) {
+		netdev_dbg(netdev, "N-tuple filters disabled\n");
+		return -EOPNOTSUPP;
+	}
+
+	if ((fsp->flow_type & ~FLOW_EXT) != ETHER_FLOW) {
+		netdev_dbg(netdev, "Only ethernet flow type is supported\n");
+		return -EOPNOTSUPP;
+	}
+
+	if (fsp->ring_cookie >= adapter->num_rx_queues) {
+		netdev_dbg(netdev, "Invalid action\n");
+		return -EINVAL;
+	}
+
+	/* There are two ways to match the VLAN TCI:
+	 *  1. Match on PCP field and use vlan prio filter for it
+	 *  2. Match on complete TCI field and use flex filter for it
+	 */
+	if ((fsp->flow_type & FLOW_EXT) &&
+	    fsp->m_ext.vlan_tci &&
+	    fsp->m_ext.vlan_tci != htons(VLAN_PRIO_MASK) &&
+	    fsp->m_ext.vlan_tci != VLAN_TCI_FULL_MASK) {
+		netdev_dbg(netdev, "VLAN mask not supported\n");
+		return -EOPNOTSUPP;
+	}
+
+	/* VLAN EtherType can only be matched by full mask. */
+	if ((fsp->flow_type & FLOW_EXT) &&
+	    fsp->m_ext.vlan_etype &&
+	    fsp->m_ext.vlan_etype != ETHER_TYPE_FULL_MASK) {
+		netdev_dbg(netdev, "VLAN EtherType mask not supported\n");
+		return -EOPNOTSUPP;
+	}
+
+	if (fsp->location >= IGC_MAX_RXNFC_RULES) {
+		netdev_dbg(netdev, "Invalid location\n");
+		return -EINVAL;
+	}
+
+	rule = kzalloc(sizeof(*rule), GFP_KERNEL);
+	if (!rule)
+		return -ENOMEM;
+
+	igc_ethtool_init_nfc_rule(rule, fsp);
+
+	mutex_lock(&adapter->nfc_rule_lock);
+
+	err = igc_ethtool_check_nfc_rule(adapter, rule);
+	if (err)
+		goto err;
+
+	old_rule = igc_get_nfc_rule(adapter, fsp->location);
+	if (old_rule)
+		igc_del_nfc_rule(adapter, old_rule);
+
+	err = igc_add_nfc_rule(adapter, rule);
+	if (err)
+		goto err;
+
+	mutex_unlock(&adapter->nfc_rule_lock);
+	return 0;
+
+err:
+	mutex_unlock(&adapter->nfc_rule_lock);
+	kfree(rule);
+	return err;
+}
+
+static int igc_ethtool_del_nfc_rule(struct igc_adapter *adapter,
+				    struct ethtool_rxnfc *cmd)
+{
+	struct ethtool_rx_flow_spec *fsp =
+		(struct ethtool_rx_flow_spec *)&cmd->fs;
+	struct igc_nfc_rule *rule;
+
+	mutex_lock(&adapter->nfc_rule_lock);
+
+	rule = igc_get_nfc_rule(adapter, fsp->location);
+	if (!rule) {
+		mutex_unlock(&adapter->nfc_rule_lock);
+		return -EINVAL;
+	}
+
+	igc_del_nfc_rule(adapter, rule);
+
+	mutex_unlock(&adapter->nfc_rule_lock);
+	return 0;
+}
+
+static int igc_ethtool_set_rxnfc(struct net_device *dev,
+				 struct ethtool_rxnfc *cmd)
+{
+	struct igc_adapter *adapter = netdev_priv(dev);
+
+	switch (cmd->cmd) {
+	case ETHTOOL_SRXFH:
+		return igc_ethtool_set_rss_hash_opt(adapter, cmd);
+	case ETHTOOL_SRXCLSRLINS:
+		return igc_ethtool_add_nfc_rule(adapter, cmd);
+	case ETHTOOL_SRXCLSRLDEL:
+		return igc_ethtool_del_nfc_rule(adapter, cmd);
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
+void igc_write_rss_indir_tbl(struct igc_adapter *adapter)
+{
+	struct igc_hw *hw = &adapter->hw;
+	u32 reg = IGC_RETA(0);
+	u32 shift = 0;
+	int i = 0;
+
+	while (i < IGC_RETA_SIZE) {
+		u32 val = 0;
+		int j;
+
+		for (j = 3; j >= 0; j--) {
+			val <<= 8;
+			val |= adapter->rss_indir_tbl[i + j];
+		}
+
+		wr32(reg, val << shift);
+		reg += 4;
+		i += 4;
+	}
+}
+
+static u32 igc_ethtool_get_rxfh_indir_size(struct net_device *netdev)
+{
+	return IGC_RETA_SIZE;
+}
+
+static int igc_ethtool_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
+				u8 *hfunc)
+{
+	struct igc_adapter *adapter = netdev_priv(netdev);
+	int i;
+
+	if (hfunc)
+		*hfunc = ETH_RSS_HASH_TOP;
+	if (!indir)
+		return 0;
+	for (i = 0; i < IGC_RETA_SIZE; i++)
+		indir[i] = adapter->rss_indir_tbl[i];
+
+	return 0;
+}
+
+static int igc_ethtool_set_rxfh(struct net_device *netdev, const u32 *indir,
+				const u8 *key, const u8 hfunc)
+{
+	struct igc_adapter *adapter = netdev_priv(netdev);
+	u32 num_queues;
+	int i;
+
+	/* We do not allow change in unsupported parameters */
+	if (key ||
+	    (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP))
+		return -EOPNOTSUPP;
+	if (!indir)
+		return 0;
+
+	num_queues = adapter->rss_queues;
+
+	/* Verify user input. */
+	for (i = 0; i < IGC_RETA_SIZE; i++)
+		if (indir[i] >= num_queues)
+			return -EINVAL;
+
+	for (i = 0; i < IGC_RETA_SIZE; i++)
+		adapter->rss_indir_tbl[i] = indir[i];
+
+	igc_write_rss_indir_tbl(adapter);
+
+	return 0;
+}
+
+static void igc_ethtool_get_channels(struct net_device *netdev,
+				     struct ethtool_channels *ch)
+{
+	struct igc_adapter *adapter = netdev_priv(netdev);
+
+	/* Report maximum channels */
+	ch->max_combined = igc_get_max_rss_queues(adapter);
+
+	/* Report info for other vector */
+	if (adapter->flags & IGC_FLAG_HAS_MSIX) {
+		ch->max_other = NON_Q_VECTORS;
+		ch->other_count = NON_Q_VECTORS;
+	}
+
+	ch->combined_count = adapter->rss_queues;
+}
+
+static int igc_ethtool_set_channels(struct net_device *netdev,
+				    struct ethtool_channels *ch)
+{
+	struct igc_adapter *adapter = netdev_priv(netdev);
+	unsigned int count = ch->combined_count;
+	unsigned int max_combined = 0;
+
+	/* Verify they are not requesting separate vectors */
+	if (!count || ch->rx_count || ch->tx_count)
+		return -EINVAL;
+
+	/* Verify other_count is valid and has not been changed */
+	if (ch->other_count != NON_Q_VECTORS)
+		return -EINVAL;
+
+	/* Verify the number of channels doesn't exceed hw limits */
+	max_combined = igc_get_max_rss_queues(adapter);
+	if (count > max_combined)
+		return -EINVAL;
+
+	if (count != adapter->rss_queues) {
+		adapter->rss_queues = count;
+		igc_set_flag_queue_pairs(adapter, max_combined);
+
+		/* Hardware has to reinitialize queues and interrupts to
+		 * match the new configuration.
+		 */
+		return igc_reinit_queues(adapter);
+	}
+
+	return 0;
+}
+
+static int igc_ethtool_get_ts_info(struct net_device *dev,
+				   struct ethtool_ts_info *info)
+{
+	struct igc_adapter *adapter = netdev_priv(dev);
+
+	if (adapter->ptp_clock)
+		info->phc_index = ptp_clock_index(adapter->ptp_clock);
+	else
+		info->phc_index = -1;
+
+	switch (adapter->hw.mac.type) {
+	case igc_i225:
+		info->so_timestamping =
+			SOF_TIMESTAMPING_TX_SOFTWARE |
+			SOF_TIMESTAMPING_RX_SOFTWARE |
+			SOF_TIMESTAMPING_SOFTWARE |
+			SOF_TIMESTAMPING_TX_HARDWARE |
+			SOF_TIMESTAMPING_RX_HARDWARE |
+			SOF_TIMESTAMPING_RAW_HARDWARE;
+
+		info->tx_types =
+			BIT(HWTSTAMP_TX_OFF) |
+			BIT(HWTSTAMP_TX_ON);
+
+		info->rx_filters = BIT(HWTSTAMP_FILTER_NONE);
+		info->rx_filters |= BIT(HWTSTAMP_FILTER_ALL);
+
+		return 0;
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
+static u32 igc_ethtool_get_priv_flags(struct net_device *netdev)
+{
+	struct igc_adapter *adapter = netdev_priv(netdev);
+	u32 priv_flags = 0;
+
+	if (adapter->flags & IGC_FLAG_RX_LEGACY)
+		priv_flags |= IGC_PRIV_FLAGS_LEGACY_RX;
+
+	return priv_flags;
+}
+
+static int igc_ethtool_set_priv_flags(struct net_device *netdev, u32 priv_flags)
+{
+	struct igc_adapter *adapter = netdev_priv(netdev);
+	unsigned int flags = adapter->flags;
+
+	flags &= ~IGC_FLAG_RX_LEGACY;
+	if (priv_flags & IGC_PRIV_FLAGS_LEGACY_RX)
+		flags |= IGC_FLAG_RX_LEGACY;
+
+	if (flags != adapter->flags) {
+		adapter->flags = flags;
+
+		/* reset interface to repopulate queues */
+		if (netif_running(netdev))
+			igc_reinit_locked(adapter);
+	}
+
+	return 0;
+}
+
+static int igc_ethtool_get_eee(struct net_device *netdev,
+			       struct ethtool_eee *edata)
+{
+	struct igc_adapter *adapter = netdev_priv(netdev);
+	struct igc_hw *hw = &adapter->hw;
+	u32 eeer;
+
+	if (hw->dev_spec._base.eee_enable)
+		edata->advertised =
+			mmd_eee_adv_to_ethtool_adv_t(adapter->eee_advert);
+
+	*edata = adapter->eee;
+	edata->supported = SUPPORTED_Autoneg;
+
+	eeer = rd32(IGC_EEER);
+
+	/* EEE status on negotiated link */
+	if (eeer & IGC_EEER_EEE_NEG)
+		edata->eee_active = true;
+
+	if (eeer & IGC_EEER_TX_LPI_EN)
+		edata->tx_lpi_enabled = true;
+
+	edata->eee_enabled = hw->dev_spec._base.eee_enable;
+
+	edata->advertised = SUPPORTED_Autoneg;
+	edata->lp_advertised = SUPPORTED_Autoneg;
+
+	/* Report correct negotiated EEE status for devices that
+	 * wrongly report EEE at half-duplex
+	 */
+	if (adapter->link_duplex == HALF_DUPLEX) {
+		edata->eee_enabled = false;
+		edata->eee_active = false;
+		edata->tx_lpi_enabled = false;
+		edata->advertised &= ~edata->advertised;
+	}
+
+	return 0;
+}
+
+static int igc_ethtool_set_eee(struct net_device *netdev,
+			       struct ethtool_eee *edata)
+{
+	struct igc_adapter *adapter = netdev_priv(netdev);
+	struct igc_hw *hw = &adapter->hw;
+	struct ethtool_eee eee_curr;
+	s32 ret_val;
+
+	memset(&eee_curr, 0, sizeof(struct ethtool_eee));
+
+	ret_val = igc_ethtool_get_eee(netdev, &eee_curr);
+	if (ret_val) {
+		netdev_err(netdev,
+			   "Problem setting EEE advertisement options\n");
+		return -EINVAL;
+	}
+
+	if (eee_curr.eee_enabled) {
+		if (eee_curr.tx_lpi_enabled != edata->tx_lpi_enabled) {
+			netdev_err(netdev,
+				   "Setting EEE tx-lpi is not supported\n");
+			return -EINVAL;
+		}
+
+		/* Tx LPI timer is not implemented currently */
+		if (edata->tx_lpi_timer) {
+			netdev_err(netdev,
+				   "Setting EEE Tx LPI timer is not supported\n");
+			return -EINVAL;
+		}
+	} else if (!edata->eee_enabled) {
+		netdev_err(netdev,
+			   "Setting EEE options are not supported with EEE disabled\n");
+		return -EINVAL;
+	}
+
+	adapter->eee_advert = ethtool_adv_to_mmd_eee_adv_t(edata->advertised);
+	if (hw->dev_spec._base.eee_enable != edata->eee_enabled) {
+		hw->dev_spec._base.eee_enable = edata->eee_enabled;
+		adapter->flags |= IGC_FLAG_EEE;
+
+		/* reset link */
+		if (netif_running(netdev))
+			igc_reinit_locked(adapter);
+		else
+			igc_reset(adapter);
+	}
+
+	return 0;
+}
+
+static int igc_ethtool_begin(struct net_device *netdev)
+{
+	struct igc_adapter *adapter = netdev_priv(netdev);
+
+	pm_runtime_get_sync(&adapter->pdev->dev);
+	return 0;
+}
+
+static void igc_ethtool_complete(struct net_device *netdev)
+{
+	struct igc_adapter *adapter = netdev_priv(netdev);
+
+	pm_runtime_put(&adapter->pdev->dev);
+}
+
+static int igc_ethtool_get_link_ksettings(struct net_device *netdev,
+					  struct ethtool_link_ksettings *cmd)
+{
+	struct igc_adapter *adapter = netdev_priv(netdev);
+	struct igc_hw *hw = &adapter->hw;
+	u32 status;
+	u32 speed;
+
+	ethtool_link_ksettings_zero_link_mode(cmd, supported);
+	ethtool_link_ksettings_zero_link_mode(cmd, advertising);
+
+	/* supported link modes */
+	ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Half);
+	ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Full);
+	ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Half);
+	ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Full);
+	ethtool_link_ksettings_add_link_mode(cmd, supported, 1000baseT_Full);
+	ethtool_link_ksettings_add_link_mode(cmd, supported, 2500baseT_Full);
+
+	/* twisted pair */
+	cmd->base.port = PORT_TP;
+	cmd->base.phy_address = hw->phy.addr;
+	ethtool_link_ksettings_add_link_mode(cmd, supported, TP);
+	ethtool_link_ksettings_add_link_mode(cmd, advertising, TP);
+
+	/* advertising link modes */
+	if (hw->phy.autoneg_advertised & ADVERTISE_10_HALF)
+		ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Half);
+	if (hw->phy.autoneg_advertised & ADVERTISE_10_FULL)
+		ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Full);
+	if (hw->phy.autoneg_advertised & ADVERTISE_100_HALF)
+		ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Half);
+	if (hw->phy.autoneg_advertised & ADVERTISE_100_FULL)
+		ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Full);
+	if (hw->phy.autoneg_advertised & ADVERTISE_1000_FULL)
+		ethtool_link_ksettings_add_link_mode(cmd, advertising, 1000baseT_Full);
+	if (hw->phy.autoneg_advertised & ADVERTISE_2500_FULL)
+		ethtool_link_ksettings_add_link_mode(cmd, advertising, 2500baseT_Full);
+
+	/* set autoneg settings */
+	if (hw->mac.autoneg == 1) {
+		ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg);
+		ethtool_link_ksettings_add_link_mode(cmd, advertising,
+						     Autoneg);
+	}
+
+	/* Set pause flow control settings */
+	ethtool_link_ksettings_add_link_mode(cmd, supported, Pause);
+
+	switch (hw->fc.requested_mode) {
+	case igc_fc_full:
+		ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause);
+		break;
+	case igc_fc_rx_pause:
+		ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause);
+		ethtool_link_ksettings_add_link_mode(cmd, advertising,
+						     Asym_Pause);
+		break;
+	case igc_fc_tx_pause:
+		ethtool_link_ksettings_add_link_mode(cmd, advertising,
+						     Asym_Pause);
+		break;
+	default:
+		break;
+	}
+
+	status = pm_runtime_suspended(&adapter->pdev->dev) ?
+		 0 : rd32(IGC_STATUS);
+
+	if (status & IGC_STATUS_LU) {
+		if (status & IGC_STATUS_SPEED_1000) {
+			/* For I225, STATUS will indicate 1G speed in both
+			 * 1 Gbps and 2.5 Gbps link modes.
+			 * An additional bit is used
+			 * to differentiate between 1 Gbps and 2.5 Gbps.
+			 */
+			if (hw->mac.type == igc_i225 &&
+			    (status & IGC_STATUS_SPEED_2500)) {
+				speed = SPEED_2500;
+			} else {
+				speed = SPEED_1000;
+			}
+		} else if (status & IGC_STATUS_SPEED_100) {
+			speed = SPEED_100;
+		} else {
+			speed = SPEED_10;
+		}
+		if ((status & IGC_STATUS_FD) ||
+		    hw->phy.media_type != igc_media_type_copper)
+			cmd->base.duplex = DUPLEX_FULL;
+		else
+			cmd->base.duplex = DUPLEX_HALF;
+	} else {
+		speed = SPEED_UNKNOWN;
+		cmd->base.duplex = DUPLEX_UNKNOWN;
+	}
+	cmd->base.speed = speed;
+	if (hw->mac.autoneg)
+		cmd->base.autoneg = AUTONEG_ENABLE;
+	else
+		cmd->base.autoneg = AUTONEG_DISABLE;
+
+	/* MDI-X => 2; MDI =>1; Invalid =>0 */
+	if (hw->phy.media_type == igc_media_type_copper)
+		cmd->base.eth_tp_mdix = hw->phy.is_mdix ? ETH_TP_MDI_X :
+						      ETH_TP_MDI;
+	else
+		cmd->base.eth_tp_mdix = ETH_TP_MDI_INVALID;
+
+	if (hw->phy.mdix == AUTO_ALL_MODES)
+		cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO;
+	else
+		cmd->base.eth_tp_mdix_ctrl = hw->phy.mdix;
+
+	return 0;
+}
+
+static int
+igc_ethtool_set_link_ksettings(struct net_device *netdev,
+			       const struct ethtool_link_ksettings *cmd)
+{
+	struct igc_adapter *adapter = netdev_priv(netdev);
+	struct net_device *dev = adapter->netdev;
+	struct igc_hw *hw = &adapter->hw;
+	u16 advertised = 0;
+
+	/* When adapter in resetting mode, autoneg/speed/duplex
+	 * cannot be changed
+	 */
+	if (igc_check_reset_block(hw)) {
+		netdev_err(dev, "Cannot change link characteristics when reset is active\n");
+		return -EINVAL;
+	}
+
+	/* MDI setting is only allowed when autoneg enabled because
+	 * some hardware doesn't allow MDI setting when speed or
+	 * duplex is forced.
+	 */
+	if (cmd->base.eth_tp_mdix_ctrl) {
+		if (cmd->base.eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO &&
+		    cmd->base.autoneg != AUTONEG_ENABLE) {
+			netdev_err(dev, "Forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n");
+			return -EINVAL;
+		}
+	}
+
+	while (test_and_set_bit(__IGC_RESETTING, &adapter->state))
+		usleep_range(1000, 2000);
+
+	if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
+						  2500baseT_Full))
+		advertised |= ADVERTISE_2500_FULL;
+
+	if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
+						  1000baseT_Full))
+		advertised |= ADVERTISE_1000_FULL;
+
+	if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
+						  100baseT_Full))
+		advertised |= ADVERTISE_100_FULL;
+
+	if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
+						  100baseT_Half))
+		advertised |= ADVERTISE_100_HALF;
+
+	if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
+						  10baseT_Full))
+		advertised |= ADVERTISE_10_FULL;
+
+	if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
+						  10baseT_Half))
+		advertised |= ADVERTISE_10_HALF;
+
+	if (cmd->base.autoneg == AUTONEG_ENABLE) {
+		hw->mac.autoneg = 1;
+		hw->phy.autoneg_advertised = advertised;
+		if (adapter->fc_autoneg)
+			hw->fc.requested_mode = igc_fc_default;
+	} else {
+		netdev_info(dev, "Force mode currently not supported\n");
+	}
+
+	/* MDI-X => 2; MDI => 1; Auto => 3 */
+	if (cmd->base.eth_tp_mdix_ctrl) {
+		/* fix up the value for auto (3 => 0) as zero is mapped
+		 * internally to auto
+		 */
+		if (cmd->base.eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO)
+			hw->phy.mdix = AUTO_ALL_MODES;
+		else
+			hw->phy.mdix = cmd->base.eth_tp_mdix_ctrl;
+	}
+
+	/* reset the link */
+	if (netif_running(adapter->netdev)) {
+		igc_down(adapter);
+		igc_up(adapter);
+	} else {
+		igc_reset(adapter);
+	}
+
+	clear_bit(__IGC_RESETTING, &adapter->state);
+
+	return 0;
+}
+
+static void igc_ethtool_diag_test(struct net_device *netdev,
+				  struct ethtool_test *eth_test, u64 *data)
+{
+	struct igc_adapter *adapter = netdev_priv(netdev);
+	bool if_running = netif_running(netdev);
+
+	if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
+		netdev_info(adapter->netdev, "Offline testing starting");
+		set_bit(__IGC_TESTING, &adapter->state);
+
+		/* Link test performed before hardware reset so autoneg doesn't
+		 * interfere with test result
+		 */
+		if (!igc_link_test(adapter, &data[TEST_LINK]))
+			eth_test->flags |= ETH_TEST_FL_FAILED;
+
+		if (if_running)
+			igc_close(netdev);
+		else
+			igc_reset(adapter);
+
+		netdev_info(adapter->netdev, "Register testing starting");
+		if (!igc_reg_test(adapter, &data[TEST_REG]))
+			eth_test->flags |= ETH_TEST_FL_FAILED;
+
+		igc_reset(adapter);
+
+		netdev_info(adapter->netdev, "EEPROM testing starting");
+		if (!igc_eeprom_test(adapter, &data[TEST_EEP]))
+			eth_test->flags |= ETH_TEST_FL_FAILED;
+
+		igc_reset(adapter);
+
+		/* loopback and interrupt tests
+		 * will be implemented in the future
+		 */
+		data[TEST_LOOP] = 0;
+		data[TEST_IRQ] = 0;
+
+		clear_bit(__IGC_TESTING, &adapter->state);
+		if (if_running)
+			igc_open(netdev);
+	} else {
+		netdev_info(adapter->netdev, "Online testing starting");
+
+		/* register, eeprom, intr and loopback tests not run online */
+		data[TEST_REG] = 0;
+		data[TEST_EEP] = 0;
+		data[TEST_IRQ] = 0;
+		data[TEST_LOOP] = 0;
+
+		if (!igc_link_test(adapter, &data[TEST_LINK]))
+			eth_test->flags |= ETH_TEST_FL_FAILED;
+	}
+
+	msleep_interruptible(4 * 1000);
+}
+
+static const struct ethtool_ops igc_ethtool_ops = {
+	.supported_coalesce_params = ETHTOOL_COALESCE_USECS,
+	.get_drvinfo		= igc_ethtool_get_drvinfo,
+	.get_regs_len		= igc_ethtool_get_regs_len,
+	.get_regs		= igc_ethtool_get_regs,
+	.get_wol		= igc_ethtool_get_wol,
+	.set_wol		= igc_ethtool_set_wol,
+	.get_msglevel		= igc_ethtool_get_msglevel,
+	.set_msglevel		= igc_ethtool_set_msglevel,
+	.nway_reset		= igc_ethtool_nway_reset,
+	.get_link		= igc_ethtool_get_link,
+	.get_eeprom_len		= igc_ethtool_get_eeprom_len,
+	.get_eeprom		= igc_ethtool_get_eeprom,
+	.set_eeprom		= igc_ethtool_set_eeprom,
+	.get_ringparam		= igc_ethtool_get_ringparam,
+	.set_ringparam		= igc_ethtool_set_ringparam,
+	.get_pauseparam		= igc_ethtool_get_pauseparam,
+	.set_pauseparam		= igc_ethtool_set_pauseparam,
+	.get_strings		= igc_ethtool_get_strings,
+	.get_sset_count		= igc_ethtool_get_sset_count,
+	.get_ethtool_stats	= igc_ethtool_get_stats,
+	.get_coalesce		= igc_ethtool_get_coalesce,
+	.set_coalesce		= igc_ethtool_set_coalesce,
+	.get_rxnfc		= igc_ethtool_get_rxnfc,
+	.set_rxnfc		= igc_ethtool_set_rxnfc,
+	.get_rxfh_indir_size	= igc_ethtool_get_rxfh_indir_size,
+	.get_rxfh		= igc_ethtool_get_rxfh,
+	.set_rxfh		= igc_ethtool_set_rxfh,
+	.get_ts_info		= igc_ethtool_get_ts_info,
+	.get_channels		= igc_ethtool_get_channels,
+	.set_channels		= igc_ethtool_set_channels,
+	.get_priv_flags		= igc_ethtool_get_priv_flags,
+	.set_priv_flags		= igc_ethtool_set_priv_flags,
+	.get_eee		= igc_ethtool_get_eee,
+	.set_eee		= igc_ethtool_set_eee,
+	.begin			= igc_ethtool_begin,
+	.complete		= igc_ethtool_complete,
+	.get_link_ksettings	= igc_ethtool_get_link_ksettings,
+	.set_link_ksettings	= igc_ethtool_set_link_ksettings,
+	.self_test		= igc_ethtool_diag_test,
+};
+
+void igc_ethtool_set_ops(struct net_device *netdev)
+{
+	netdev->ethtool_ops = &igc_ethtool_ops;
+}