drivers/net/ethernet/cisco/enic/enic_ethtool.c - arm/linux-arm64-legacy - Git at Google

 /**
  * Copyright 2013 Cisco Systems, Inc.  All rights reserved.
  *
  * This program is free software; you may redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; version 2 of the License.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
  *
  */

 #include <linux/netdevice.h>
 #include <linux/ethtool.h>

 #include "enic_res.h"
 #include "enic.h"
 #include "enic_dev.h"

 struct enic_stat {
 	char name[ETH_GSTRING_LEN];
 	unsigned int index;
 };

 #define ENIC_TX_STAT(stat) { \
 	.name = #stat, \
 	.index = offsetof(struct vnic_tx_stats, stat) / sizeof(u64) \
 }

 #define ENIC_RX_STAT(stat) { \
 	.name = #stat, \
 	.index = offsetof(struct vnic_rx_stats, stat) / sizeof(u64) \
 }

 static const struct enic_stat enic_tx_stats[] = {
 	ENIC_TX_STAT(tx_frames_ok),
 	ENIC_TX_STAT(tx_unicast_frames_ok),
 	ENIC_TX_STAT(tx_multicast_frames_ok),
 	ENIC_TX_STAT(tx_broadcast_frames_ok),
 	ENIC_TX_STAT(tx_bytes_ok),
 	ENIC_TX_STAT(tx_unicast_bytes_ok),
 	ENIC_TX_STAT(tx_multicast_bytes_ok),
 	ENIC_TX_STAT(tx_broadcast_bytes_ok),
 	ENIC_TX_STAT(tx_drops),
 	ENIC_TX_STAT(tx_errors),
 	ENIC_TX_STAT(tx_tso),
 };

 static const struct enic_stat enic_rx_stats[] = {
 	ENIC_RX_STAT(rx_frames_ok),
 	ENIC_RX_STAT(rx_frames_total),
 	ENIC_RX_STAT(rx_unicast_frames_ok),
 	ENIC_RX_STAT(rx_multicast_frames_ok),
 	ENIC_RX_STAT(rx_broadcast_frames_ok),
 	ENIC_RX_STAT(rx_bytes_ok),
 	ENIC_RX_STAT(rx_unicast_bytes_ok),
 	ENIC_RX_STAT(rx_multicast_bytes_ok),
 	ENIC_RX_STAT(rx_broadcast_bytes_ok),
 	ENIC_RX_STAT(rx_drop),
 	ENIC_RX_STAT(rx_no_bufs),
 	ENIC_RX_STAT(rx_errors),
 	ENIC_RX_STAT(rx_rss),
 	ENIC_RX_STAT(rx_crc_errors),
 	ENIC_RX_STAT(rx_frames_64),
 	ENIC_RX_STAT(rx_frames_127),
 	ENIC_RX_STAT(rx_frames_255),
 	ENIC_RX_STAT(rx_frames_511),
 	ENIC_RX_STAT(rx_frames_1023),
 	ENIC_RX_STAT(rx_frames_1518),
 	ENIC_RX_STAT(rx_frames_to_max),
 };

 static const unsigned int enic_n_tx_stats = ARRAY_SIZE(enic_tx_stats);
 static const unsigned int enic_n_rx_stats = ARRAY_SIZE(enic_rx_stats);

 void enic_intr_coal_set_rx(struct enic *enic, u32 timer)
 {
 	int i;
 	int intr;

 	for (i = 0; i < enic->rq_count; i++) {
 		intr = enic_msix_rq_intr(enic, i);
 		vnic_intr_coalescing_timer_set(&enic->intr[intr], timer);
 	}
 }

 static int enic_get_settings(struct net_device *netdev,
 	struct ethtool_cmd *ecmd)
 {
 	struct enic *enic = netdev_priv(netdev);

 	ecmd->supported = (SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE);
 	ecmd->advertising = (ADVERTISED_10000baseT_Full | ADVERTISED_FIBRE);
 	ecmd->port = PORT_FIBRE;
 	ecmd->transceiver = XCVR_EXTERNAL;

 	if (netif_carrier_ok(netdev)) {
 		ethtool_cmd_speed_set(ecmd, vnic_dev_port_speed(enic->vdev));
 		ecmd->duplex = DUPLEX_FULL;
 	} else {
 		ethtool_cmd_speed_set(ecmd, SPEED_UNKNOWN);
 		ecmd->duplex = DUPLEX_UNKNOWN;
 	}

 	ecmd->autoneg = AUTONEG_DISABLE;

 	return 0;
 }

 static void enic_get_drvinfo(struct net_device *netdev,
 	struct ethtool_drvinfo *drvinfo)
 {
 	struct enic *enic = netdev_priv(netdev);
 	struct vnic_devcmd_fw_info *fw_info;

 	enic_dev_fw_info(enic, &fw_info);

 	strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver));
 	strlcpy(drvinfo->version, DRV_VERSION, sizeof(drvinfo->version));
 	strlcpy(drvinfo->fw_version, fw_info->fw_version,
 		sizeof(drvinfo->fw_version));
 	strlcpy(drvinfo->bus_info, pci_name(enic->pdev),
 		sizeof(drvinfo->bus_info));
 }

 static void enic_get_strings(struct net_device *netdev, u32 stringset,
 	u8 *data)
 {
 	unsigned int i;

 	switch (stringset) {
 	case ETH_SS_STATS:
 		for (i = 0; i < enic_n_tx_stats; i++) {
 			memcpy(data, enic_tx_stats[i].name, ETH_GSTRING_LEN);
 			data += ETH_GSTRING_LEN;
 		}
 		for (i = 0; i < enic_n_rx_stats; i++) {
 			memcpy(data, enic_rx_stats[i].name, ETH_GSTRING_LEN);
 			data += ETH_GSTRING_LEN;
 		}
 		break;
 	}
 }

 static int enic_get_sset_count(struct net_device *netdev, int sset)
 {
 	switch (sset) {
 	case ETH_SS_STATS:
 		return enic_n_tx_stats + enic_n_rx_stats;
 	default:
 		return -EOPNOTSUPP;
 	}
 }

 static void enic_get_ethtool_stats(struct net_device *netdev,
 	struct ethtool_stats *stats, u64 *data)
 {
 	struct enic *enic = netdev_priv(netdev);
 	struct vnic_stats *vstats;
 	unsigned int i;

 	enic_dev_stats_dump(enic, &vstats);

 	for (i = 0; i < enic_n_tx_stats; i++)
 		*(data++) = ((u64 *)&vstats->tx)[enic_tx_stats[i].index];
 	for (i = 0; i < enic_n_rx_stats; i++)
 		*(data++) = ((u64 *)&vstats->rx)[enic_rx_stats[i].index];
 }

 static u32 enic_get_msglevel(struct net_device *netdev)
 {
 	struct enic *enic = netdev_priv(netdev);
 	return enic->msg_enable;
 }

 static void enic_set_msglevel(struct net_device *netdev, u32 value)
 {
 	struct enic *enic = netdev_priv(netdev);
 	enic->msg_enable = value;
 }

 static int enic_get_coalesce(struct net_device *netdev,
 	struct ethtool_coalesce *ecmd)
 {
 	struct enic *enic = netdev_priv(netdev);
 	struct enic_rx_coal *rxcoal = &enic->rx_coalesce_setting;

 	ecmd->tx_coalesce_usecs = enic->tx_coalesce_usecs;
 	ecmd->rx_coalesce_usecs = enic->rx_coalesce_usecs;
 	if (rxcoal->use_adaptive_rx_coalesce)
 		ecmd->use_adaptive_rx_coalesce = 1;
 	ecmd->rx_coalesce_usecs_low = rxcoal->small_pkt_range_start;
 	ecmd->rx_coalesce_usecs_high = rxcoal->range_end;

 	return 0;
 }

 static int enic_set_coalesce(struct net_device *netdev,
 	struct ethtool_coalesce *ecmd)
 {
 	struct enic *enic = netdev_priv(netdev);
 	u32 tx_coalesce_usecs;
 	u32 rx_coalesce_usecs;
 	u32 rx_coalesce_usecs_low;
 	u32 rx_coalesce_usecs_high;
 	u32 coalesce_usecs_max;
 	unsigned int i, intr;
 	struct enic_rx_coal *rxcoal = &enic->rx_coalesce_setting;

 	coalesce_usecs_max = vnic_dev_get_intr_coal_timer_max(enic->vdev);
 	tx_coalesce_usecs = min_t(u32, ecmd->tx_coalesce_usecs,
 				  coalesce_usecs_max);
 	rx_coalesce_usecs = min_t(u32, ecmd->rx_coalesce_usecs,
 				  coalesce_usecs_max);

 	rx_coalesce_usecs_low = min_t(u32, ecmd->rx_coalesce_usecs_low,
 				      coalesce_usecs_max);
 	rx_coalesce_usecs_high = min_t(u32, ecmd->rx_coalesce_usecs_high,
 				       coalesce_usecs_max);

 	switch (vnic_dev_get_intr_mode(enic->vdev)) {
 	case VNIC_DEV_INTR_MODE_INTX:
 		if (tx_coalesce_usecs != rx_coalesce_usecs)
 			return -EINVAL;
 		if (ecmd->use_adaptive_rx_coalesce	||
 		    ecmd->rx_coalesce_usecs_low		||
 		    ecmd->rx_coalesce_usecs_high)
 			return -EOPNOTSUPP;

 		intr = enic_legacy_io_intr();
 		vnic_intr_coalescing_timer_set(&enic->intr[intr],
 			tx_coalesce_usecs);
 		break;
 	case VNIC_DEV_INTR_MODE_MSI:
 		if (tx_coalesce_usecs != rx_coalesce_usecs)
 			return -EINVAL;
 		if (ecmd->use_adaptive_rx_coalesce	||
 		    ecmd->rx_coalesce_usecs_low		||
 		    ecmd->rx_coalesce_usecs_high)
 			return -EOPNOTSUPP;

 		vnic_intr_coalescing_timer_set(&enic->intr[0],
 			tx_coalesce_usecs);
 		break;
 	case VNIC_DEV_INTR_MODE_MSIX:
 		for (i = 0; i < enic->wq_count; i++) {
 			intr = enic_msix_wq_intr(enic, i);
 			vnic_intr_coalescing_timer_set(&enic->intr[intr],
 				tx_coalesce_usecs);
 		}

 		if (rxcoal->use_adaptive_rx_coalesce) {
 			if (!ecmd->use_adaptive_rx_coalesce) {
 				rxcoal->use_adaptive_rx_coalesce = 0;
 				enic_intr_coal_set_rx(enic, rx_coalesce_usecs);
 			}
 		} else {
 			if (ecmd->use_adaptive_rx_coalesce)
 				rxcoal->use_adaptive_rx_coalesce = 1;
 			else
 				enic_intr_coal_set_rx(enic, rx_coalesce_usecs);
 		}

 		if (ecmd->rx_coalesce_usecs_high) {
 			if (rx_coalesce_usecs_high <
 			    (rx_coalesce_usecs_low + ENIC_AIC_LARGE_PKT_DIFF))
 				return -EINVAL;
 			rxcoal->range_end = rx_coalesce_usecs_high;
 			rxcoal->small_pkt_range_start = rx_coalesce_usecs_low;
 			rxcoal->large_pkt_range_start = rx_coalesce_usecs_low +
 							ENIC_AIC_LARGE_PKT_DIFF;
 		}
 		break;
 	default:
 		break;
 	}

 	enic->tx_coalesce_usecs = tx_coalesce_usecs;
 	enic->rx_coalesce_usecs = rx_coalesce_usecs;

 	return 0;
 }

 static const struct ethtool_ops enic_ethtool_ops = {
 	.get_settings = enic_get_settings,
 	.get_drvinfo = enic_get_drvinfo,
 	.get_msglevel = enic_get_msglevel,
 	.set_msglevel = enic_set_msglevel,
 	.get_link = ethtool_op_get_link,
 	.get_strings = enic_get_strings,
 	.get_sset_count = enic_get_sset_count,
 	.get_ethtool_stats = enic_get_ethtool_stats,
 	.get_coalesce = enic_get_coalesce,
 	.set_coalesce = enic_set_coalesce,
 };

 void enic_set_ethtool_ops(struct net_device *netdev)
 {
 	netdev->ethtool_ops = &enic_ethtool_ops;
 }
	/**
	* Copyright 2013 Cisco Systems, Inc. All rights reserved.
	*
	* This program is free software; you may redistribute it and/or modify
	* it under the terms of the GNU General Public License as published by
	* the Free Software Foundation; version 2 of the License.
	*
	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
	* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
	* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
	* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
	* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
	* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	* SOFTWARE.
	*
	*/

	#include <linux/netdevice.h>
	#include <linux/ethtool.h>

	#include "enic_res.h"
	#include "enic.h"
	#include "enic_dev.h"

	struct enic_stat {
	char name[ETH_GSTRING_LEN];
	unsigned int index;
	};

	#define ENIC_TX_STAT(stat) { \
	.name = #stat, \
	.index = offsetof(struct vnic_tx_stats, stat) / sizeof(u64) \
	}

	#define ENIC_RX_STAT(stat) { \
	.name = #stat, \
	.index = offsetof(struct vnic_rx_stats, stat) / sizeof(u64) \
	}

	static const struct enic_stat enic_tx_stats[] = {
	ENIC_TX_STAT(tx_frames_ok),
	ENIC_TX_STAT(tx_unicast_frames_ok),
	ENIC_TX_STAT(tx_multicast_frames_ok),
	ENIC_TX_STAT(tx_broadcast_frames_ok),
	ENIC_TX_STAT(tx_bytes_ok),
	ENIC_TX_STAT(tx_unicast_bytes_ok),
	ENIC_TX_STAT(tx_multicast_bytes_ok),
	ENIC_TX_STAT(tx_broadcast_bytes_ok),
	ENIC_TX_STAT(tx_drops),
	ENIC_TX_STAT(tx_errors),
	ENIC_TX_STAT(tx_tso),
	};

	static const struct enic_stat enic_rx_stats[] = {
	ENIC_RX_STAT(rx_frames_ok),
	ENIC_RX_STAT(rx_frames_total),
	ENIC_RX_STAT(rx_unicast_frames_ok),
	ENIC_RX_STAT(rx_multicast_frames_ok),
	ENIC_RX_STAT(rx_broadcast_frames_ok),
	ENIC_RX_STAT(rx_bytes_ok),
	ENIC_RX_STAT(rx_unicast_bytes_ok),
	ENIC_RX_STAT(rx_multicast_bytes_ok),
	ENIC_RX_STAT(rx_broadcast_bytes_ok),
	ENIC_RX_STAT(rx_drop),
	ENIC_RX_STAT(rx_no_bufs),
	ENIC_RX_STAT(rx_errors),
	ENIC_RX_STAT(rx_rss),
	ENIC_RX_STAT(rx_crc_errors),
	ENIC_RX_STAT(rx_frames_64),
	ENIC_RX_STAT(rx_frames_127),
	ENIC_RX_STAT(rx_frames_255),
	ENIC_RX_STAT(rx_frames_511),
	ENIC_RX_STAT(rx_frames_1023),
	ENIC_RX_STAT(rx_frames_1518),
	ENIC_RX_STAT(rx_frames_to_max),
	};

	static const unsigned int enic_n_tx_stats = ARRAY_SIZE(enic_tx_stats);
	static const unsigned int enic_n_rx_stats = ARRAY_SIZE(enic_rx_stats);

	void enic_intr_coal_set_rx(struct enic *enic, u32 timer)
	{
	int i;
	int intr;

	for (i = 0; i < enic->rq_count; i++) {
	intr = enic_msix_rq_intr(enic, i);
	vnic_intr_coalescing_timer_set(&enic->intr[intr], timer);
	}
	}

	static int enic_get_settings(struct net_device *netdev,
	struct ethtool_cmd *ecmd)
	{
	struct enic *enic = netdev_priv(netdev);

	ecmd->supported = (SUPPORTED_10000baseT_Full \| SUPPORTED_FIBRE);
	ecmd->advertising = (ADVERTISED_10000baseT_Full \| ADVERTISED_FIBRE);
	ecmd->port = PORT_FIBRE;
	ecmd->transceiver = XCVR_EXTERNAL;

	if (netif_carrier_ok(netdev)) {
	ethtool_cmd_speed_set(ecmd, vnic_dev_port_speed(enic->vdev));
	ecmd->duplex = DUPLEX_FULL;
	} else {
	ethtool_cmd_speed_set(ecmd, SPEED_UNKNOWN);
	ecmd->duplex = DUPLEX_UNKNOWN;
	}

	ecmd->autoneg = AUTONEG_DISABLE;

	return 0;
	}

	static void enic_get_drvinfo(struct net_device *netdev,
	struct ethtool_drvinfo *drvinfo)
	{
	struct enic *enic = netdev_priv(netdev);
	struct vnic_devcmd_fw_info *fw_info;

	enic_dev_fw_info(enic, &fw_info);

	strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver));
	strlcpy(drvinfo->version, DRV_VERSION, sizeof(drvinfo->version));
	strlcpy(drvinfo->fw_version, fw_info->fw_version,
	sizeof(drvinfo->fw_version));
	strlcpy(drvinfo->bus_info, pci_name(enic->pdev),
	sizeof(drvinfo->bus_info));
	}

	static void enic_get_strings(struct net_device *netdev, u32 stringset,
	u8 *data)
	{
	unsigned int i;

	switch (stringset) {
	case ETH_SS_STATS:
	for (i = 0; i < enic_n_tx_stats; i++) {
	memcpy(data, enic_tx_stats[i].name, ETH_GSTRING_LEN);
	data += ETH_GSTRING_LEN;
	}
	for (i = 0; i < enic_n_rx_stats; i++) {
	memcpy(data, enic_rx_stats[i].name, ETH_GSTRING_LEN);
	data += ETH_GSTRING_LEN;
	}
	break;
	}
	}

	static int enic_get_sset_count(struct net_device *netdev, int sset)
	{
	switch (sset) {
	case ETH_SS_STATS:
	return enic_n_tx_stats + enic_n_rx_stats;
	default:
	return -EOPNOTSUPP;
	}
	}

	static void enic_get_ethtool_stats(struct net_device *netdev,
	struct ethtool_stats stats, u64 data)
	{
	struct enic *enic = netdev_priv(netdev);
	struct vnic_stats *vstats;
	unsigned int i;

	enic_dev_stats_dump(enic, &vstats);

	for (i = 0; i < enic_n_tx_stats; i++)
	(data++) = ((u64 )&vstats->tx)[enic_tx_stats[i].index];
	for (i = 0; i < enic_n_rx_stats; i++)
	(data++) = ((u64 )&vstats->rx)[enic_rx_stats[i].index];
	}

	static u32 enic_get_msglevel(struct net_device *netdev)
	{
	struct enic *enic = netdev_priv(netdev);
	return enic->msg_enable;
	}

	static void enic_set_msglevel(struct net_device *netdev, u32 value)
	{
	struct enic *enic = netdev_priv(netdev);
	enic->msg_enable = value;
	}

	static int enic_get_coalesce(struct net_device *netdev,
	struct ethtool_coalesce *ecmd)
	{
	struct enic *enic = netdev_priv(netdev);
	struct enic_rx_coal *rxcoal = &enic->rx_coalesce_setting;

	ecmd->tx_coalesce_usecs = enic->tx_coalesce_usecs;
	ecmd->rx_coalesce_usecs = enic->rx_coalesce_usecs;
	if (rxcoal->use_adaptive_rx_coalesce)
	ecmd->use_adaptive_rx_coalesce = 1;
	ecmd->rx_coalesce_usecs_low = rxcoal->small_pkt_range_start;
	ecmd->rx_coalesce_usecs_high = rxcoal->range_end;

	return 0;
	}

	static int enic_set_coalesce(struct net_device *netdev,
	struct ethtool_coalesce *ecmd)
	{
	struct enic *enic = netdev_priv(netdev);
	u32 tx_coalesce_usecs;
	u32 rx_coalesce_usecs;
	u32 rx_coalesce_usecs_low;
	u32 rx_coalesce_usecs_high;
	u32 coalesce_usecs_max;
	unsigned int i, intr;
	struct enic_rx_coal *rxcoal = &enic->rx_coalesce_setting;

	coalesce_usecs_max = vnic_dev_get_intr_coal_timer_max(enic->vdev);
	tx_coalesce_usecs = min_t(u32, ecmd->tx_coalesce_usecs,
	coalesce_usecs_max);
	rx_coalesce_usecs = min_t(u32, ecmd->rx_coalesce_usecs,
	coalesce_usecs_max);

	rx_coalesce_usecs_low = min_t(u32, ecmd->rx_coalesce_usecs_low,
	coalesce_usecs_max);
	rx_coalesce_usecs_high = min_t(u32, ecmd->rx_coalesce_usecs_high,
	coalesce_usecs_max);

	switch (vnic_dev_get_intr_mode(enic->vdev)) {
	case VNIC_DEV_INTR_MODE_INTX:
	if (tx_coalesce_usecs != rx_coalesce_usecs)
	return -EINVAL;
	if (ecmd->use_adaptive_rx_coalesce \|\|
	ecmd->rx_coalesce_usecs_low \|\|
	ecmd->rx_coalesce_usecs_high)
	return -EOPNOTSUPP;

	intr = enic_legacy_io_intr();
	vnic_intr_coalescing_timer_set(&enic->intr[intr],
	tx_coalesce_usecs);
	break;
	case VNIC_DEV_INTR_MODE_MSI:
	if (tx_coalesce_usecs != rx_coalesce_usecs)
	return -EINVAL;
	if (ecmd->use_adaptive_rx_coalesce \|\|
	ecmd->rx_coalesce_usecs_low \|\|
	ecmd->rx_coalesce_usecs_high)
	return -EOPNOTSUPP;

	vnic_intr_coalescing_timer_set(&enic->intr[0],
	tx_coalesce_usecs);
	break;
	case VNIC_DEV_INTR_MODE_MSIX:
	for (i = 0; i < enic->wq_count; i++) {
	intr = enic_msix_wq_intr(enic, i);
	vnic_intr_coalescing_timer_set(&enic->intr[intr],
	tx_coalesce_usecs);
	}

	if (rxcoal->use_adaptive_rx_coalesce) {
	if (!ecmd->use_adaptive_rx_coalesce) {
	rxcoal->use_adaptive_rx_coalesce = 0;
	enic_intr_coal_set_rx(enic, rx_coalesce_usecs);
	}
	} else {
	if (ecmd->use_adaptive_rx_coalesce)
	rxcoal->use_adaptive_rx_coalesce = 1;
	else
	enic_intr_coal_set_rx(enic, rx_coalesce_usecs);
	}

	if (ecmd->rx_coalesce_usecs_high) {
	if (rx_coalesce_usecs_high <
	(rx_coalesce_usecs_low + ENIC_AIC_LARGE_PKT_DIFF))
	return -EINVAL;
	rxcoal->range_end = rx_coalesce_usecs_high;
	rxcoal->small_pkt_range_start = rx_coalesce_usecs_low;
	rxcoal->large_pkt_range_start = rx_coalesce_usecs_low +
	ENIC_AIC_LARGE_PKT_DIFF;
	}
	break;
	default:
	break;
	}

	enic->tx_coalesce_usecs = tx_coalesce_usecs;
	enic->rx_coalesce_usecs = rx_coalesce_usecs;

	return 0;
	}

	static const struct ethtool_ops enic_ethtool_ops = {
	.get_settings = enic_get_settings,
	.get_drvinfo = enic_get_drvinfo,
	.get_msglevel = enic_get_msglevel,
	.set_msglevel = enic_set_msglevel,
	.get_link = ethtool_op_get_link,
	.get_strings = enic_get_strings,
	.get_sset_count = enic_get_sset_count,
	.get_ethtool_stats = enic_get_ethtool_stats,
	.get_coalesce = enic_get_coalesce,
	.set_coalesce = enic_set_coalesce,
	};

	void enic_set_ethtool_ops(struct net_device *netdev)
	{
	netdev->ethtool_ops = &enic_ethtool_ops;
	}