drivers/net/ethernet/apm/xgene/xgene_enet_ethtool.c - hafnium/third_party/linux - Git at Google

 /* Applied Micro X-Gene SoC Ethernet Driver
  *
  * Copyright (c) 2014, Applied Micro Circuits Corporation
  * Authors: Iyappan Subramanian <isubramanian@apm.com>
  *
  * This program is free software; you can redistribute  it and/or modify it
  * under  the terms of  the GNU General  Public License as published by the
  * Free Software Foundation;  either version 2 of the  License, or (at your
  * option) any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */

 #include <linux/ethtool.h>
 #include "xgene_enet_main.h"

 struct xgene_gstrings_stats {
 	char name[ETH_GSTRING_LEN];
 	int offset;
 	u32 addr;
 	u32 mask;
 };

 #define XGENE_STAT(m) { #m, offsetof(struct rtnl_link_stats64, m) }
 #define XGENE_EXTD_STAT(s, a, m)		\
 		{			\
 		.name = #s,		\
 		.addr = a ## _ADDR,	\
 		.mask = m		\
 		}

 static const struct xgene_gstrings_stats gstrings_stats[] = {
 	XGENE_STAT(rx_packets),
 	XGENE_STAT(tx_packets),
 	XGENE_STAT(rx_bytes),
 	XGENE_STAT(tx_bytes),
 	XGENE_STAT(rx_errors),
 	XGENE_STAT(tx_errors),
 	XGENE_STAT(rx_length_errors),
 	XGENE_STAT(rx_crc_errors),
 	XGENE_STAT(rx_frame_errors),
 	XGENE_STAT(rx_fifo_errors)
 };

 static const struct xgene_gstrings_stats gstrings_extd_stats[] = {
 	XGENE_EXTD_STAT(tx_rx_64b_frame_cntr, TR64, 31),
 	XGENE_EXTD_STAT(tx_rx_127b_frame_cntr, TR127, 31),
 	XGENE_EXTD_STAT(tx_rx_255b_frame_cntr, TR255, 31),
 	XGENE_EXTD_STAT(tx_rx_511b_frame_cntr, TR511, 31),
 	XGENE_EXTD_STAT(tx_rx_1023b_frame_cntr, TR1K, 31),
 	XGENE_EXTD_STAT(tx_rx_1518b_frame_cntr, TRMAX, 31),
 	XGENE_EXTD_STAT(tx_rx_1522b_frame_cntr, TRMGV, 31),
 	XGENE_EXTD_STAT(rx_fcs_error_cntr, RFCS, 16),
 	XGENE_EXTD_STAT(rx_multicast_pkt_cntr, RMCA, 31),
 	XGENE_EXTD_STAT(rx_broadcast_pkt_cntr, RBCA, 31),
 	XGENE_EXTD_STAT(rx_ctrl_frame_pkt_cntr, RXCF, 16),
 	XGENE_EXTD_STAT(rx_pause_frame_pkt_cntr, RXPF, 16),
 	XGENE_EXTD_STAT(rx_unk_opcode_cntr, RXUO, 16),
 	XGENE_EXTD_STAT(rx_align_err_cntr, RALN, 16),
 	XGENE_EXTD_STAT(rx_frame_len_err_cntr, RFLR, 16),
 	XGENE_EXTD_STAT(rx_frame_len_err_recov_cntr, DUMP, 0),
 	XGENE_EXTD_STAT(rx_code_err_cntr, RCDE, 16),
 	XGENE_EXTD_STAT(rx_carrier_sense_err_cntr, RCSE, 16),
 	XGENE_EXTD_STAT(rx_undersize_pkt_cntr, RUND, 16),
 	XGENE_EXTD_STAT(rx_oversize_pkt_cntr, ROVR, 16),
 	XGENE_EXTD_STAT(rx_fragments_cntr, RFRG, 16),
 	XGENE_EXTD_STAT(rx_jabber_cntr, RJBR, 16),
 	XGENE_EXTD_STAT(rx_jabber_recov_cntr, DUMP, 0),
 	XGENE_EXTD_STAT(rx_dropped_pkt_cntr, RDRP, 16),
 	XGENE_EXTD_STAT(rx_overrun_cntr, DUMP, 0),
 	XGENE_EXTD_STAT(tx_multicast_pkt_cntr, TMCA, 31),
 	XGENE_EXTD_STAT(tx_broadcast_pkt_cntr, TBCA, 31),
 	XGENE_EXTD_STAT(tx_pause_ctrl_frame_cntr, TXPF, 16),
 	XGENE_EXTD_STAT(tx_defer_pkt_cntr, TDFR, 31),
 	XGENE_EXTD_STAT(tx_excv_defer_pkt_cntr, TEDF, 31),
 	XGENE_EXTD_STAT(tx_single_col_pkt_cntr, TSCL, 31),
 	XGENE_EXTD_STAT(tx_multi_col_pkt_cntr, TMCL, 31),
 	XGENE_EXTD_STAT(tx_late_col_pkt_cntr, TLCL, 31),
 	XGENE_EXTD_STAT(tx_excv_col_pkt_cntr, TXCL, 31),
 	XGENE_EXTD_STAT(tx_total_col_cntr, TNCL, 31),
 	XGENE_EXTD_STAT(tx_pause_frames_hnrd_cntr, TPFH, 16),
 	XGENE_EXTD_STAT(tx_drop_frame_cntr, TDRP, 16),
 	XGENE_EXTD_STAT(tx_jabber_frame_cntr, TJBR, 12),
 	XGENE_EXTD_STAT(tx_fcs_error_cntr, TFCS, 12),
 	XGENE_EXTD_STAT(tx_ctrl_frame_cntr, TXCF, 12),
 	XGENE_EXTD_STAT(tx_oversize_frame_cntr, TOVR, 12),
 	XGENE_EXTD_STAT(tx_undersize_frame_cntr, TUND, 12),
 	XGENE_EXTD_STAT(tx_fragments_cntr, TFRG, 12),
 	XGENE_EXTD_STAT(tx_underrun_cntr, DUMP, 0)
 };

 #define XGENE_STATS_LEN		ARRAY_SIZE(gstrings_stats)
 #define XGENE_EXTD_STATS_LEN	ARRAY_SIZE(gstrings_extd_stats)
 #define RFCS_IDX		7
 #define RALN_IDX		13
 #define RFLR_IDX		14
 #define FALSE_RFLR_IDX		15
 #define RUND_IDX		18
 #define FALSE_RJBR_IDX		22
 #define RX_OVERRUN_IDX		24
 #define TFCS_IDX		38
 #define TFRG_IDX		42
 #define TX_UNDERRUN_IDX		43

 static void xgene_get_drvinfo(struct net_device *ndev,
 			      struct ethtool_drvinfo *info)
 {
 	struct xgene_enet_pdata *pdata = netdev_priv(ndev);
 	struct platform_device *pdev = pdata->pdev;

 	strcpy(info->driver, "xgene_enet");
 	strcpy(info->version, XGENE_DRV_VERSION);
 	snprintf(info->fw_version, ETHTOOL_FWVERS_LEN, "N/A");
 	sprintf(info->bus_info, "%s", pdev->name);
 }

 static int xgene_get_link_ksettings(struct net_device *ndev,
 				    struct ethtool_link_ksettings *cmd)
 {
 	struct xgene_enet_pdata *pdata = netdev_priv(ndev);
 	struct phy_device *phydev = ndev->phydev;
 	u32 supported;

 	if (phy_interface_mode_is_rgmii(pdata->phy_mode)) {
 		if (phydev == NULL)
 			return -ENODEV;

 		phy_ethtool_ksettings_get(phydev, cmd);

 		return 0;
 	} else if (pdata->phy_mode == PHY_INTERFACE_MODE_SGMII) {
 		if (pdata->mdio_driver) {
 			if (!phydev)
 				return -ENODEV;

 			phy_ethtool_ksettings_get(phydev, cmd);

 			return 0;
 		}

 		supported = SUPPORTED_1000baseT_Full | SUPPORTED_Autoneg |
 			SUPPORTED_MII;
 		ethtool_convert_legacy_u32_to_link_mode(
 			cmd->link_modes.supported,
 			supported);
 		ethtool_convert_legacy_u32_to_link_mode(
 			cmd->link_modes.advertising,
 			supported);

 		cmd->base.speed = SPEED_1000;
 		cmd->base.duplex = DUPLEX_FULL;
 		cmd->base.port = PORT_MII;
 		cmd->base.autoneg = AUTONEG_ENABLE;
 	} else {
 		supported = SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE;
 		ethtool_convert_legacy_u32_to_link_mode(
 			cmd->link_modes.supported,
 			supported);
 		ethtool_convert_legacy_u32_to_link_mode(
 			cmd->link_modes.advertising,
 			supported);

 		cmd->base.speed = SPEED_10000;
 		cmd->base.duplex = DUPLEX_FULL;
 		cmd->base.port = PORT_FIBRE;
 		cmd->base.autoneg = AUTONEG_DISABLE;
 	}

 	return 0;
 }

 static int xgene_set_link_ksettings(struct net_device *ndev,
 				    const struct ethtool_link_ksettings *cmd)
 {
 	struct xgene_enet_pdata *pdata = netdev_priv(ndev);
 	struct phy_device *phydev = ndev->phydev;

 	if (phy_interface_mode_is_rgmii(pdata->phy_mode)) {
 		if (!phydev)
 			return -ENODEV;

 		return phy_ethtool_ksettings_set(phydev, cmd);
 	}

 	if (pdata->phy_mode == PHY_INTERFACE_MODE_SGMII) {
 		if (pdata->mdio_driver) {
 			if (!phydev)
 				return -ENODEV;

 			return phy_ethtool_ksettings_set(phydev, cmd);
 		}
 	}

 	return -EINVAL;
 }

 static void xgene_get_strings(struct net_device *ndev, u32 stringset, u8 *data)
 {
 	int i;
 	u8 *p = data;

 	if (stringset != ETH_SS_STATS)
 		return;

 	for (i = 0; i < XGENE_STATS_LEN; i++) {
 		memcpy(p, gstrings_stats[i].name, ETH_GSTRING_LEN);
 		p += ETH_GSTRING_LEN;
 	}

 	for (i = 0; i < XGENE_EXTD_STATS_LEN; i++) {
 		memcpy(p, gstrings_extd_stats[i].name, ETH_GSTRING_LEN);
 		p += ETH_GSTRING_LEN;
 	}
 }

 static int xgene_get_sset_count(struct net_device *ndev, int sset)
 {
 	if (sset != ETH_SS_STATS)
 		return -EINVAL;

 	return XGENE_STATS_LEN + XGENE_EXTD_STATS_LEN;
 }

 static void xgene_get_extd_stats(struct xgene_enet_pdata *pdata)
 {
 	u32 rx_drop, tx_drop;
 	u32 mask, tmp;
 	int i;

 	for (i = 0; i < XGENE_EXTD_STATS_LEN; i++) {
 		tmp = xgene_enet_rd_stat(pdata, gstrings_extd_stats[i].addr);
 		if (gstrings_extd_stats[i].mask) {
 			mask = GENMASK(gstrings_extd_stats[i].mask - 1, 0);
 			pdata->extd_stats[i] += (tmp & mask);
 		}
 	}

 	if (pdata->phy_mode == PHY_INTERFACE_MODE_XGMII) {
 		/* Errata 10GE_10 - SW should intepret RALN as 0 */
 		pdata->extd_stats[RALN_IDX] = 0;
 	} else {
 		/* Errata ENET_15 - Fixes RFCS, RFLR, TFCS counter */
 		pdata->extd_stats[RFCS_IDX] -= pdata->extd_stats[RALN_IDX];
 		pdata->extd_stats[RFLR_IDX] -= pdata->extd_stats[RUND_IDX];
 		pdata->extd_stats[TFCS_IDX] -= pdata->extd_stats[TFRG_IDX];
 	}

 	pdata->mac_ops->get_drop_cnt(pdata, &rx_drop, &tx_drop);
 	pdata->extd_stats[RX_OVERRUN_IDX] += rx_drop;
 	pdata->extd_stats[TX_UNDERRUN_IDX] += tx_drop;

 	/* Errata 10GE_8 -  Update Frame recovered from Errata 10GE_8/ENET_11 */
 	pdata->extd_stats[FALSE_RFLR_IDX] = pdata->false_rflr;
 	/* Errata ENET_15 - Jabber Frame recov'ed from Errata 10GE_10/ENET_15 */
 	pdata->extd_stats[FALSE_RJBR_IDX] = pdata->vlan_rjbr;
 }

 int xgene_extd_stats_init(struct xgene_enet_pdata *pdata)
 {
 	pdata->extd_stats = devm_kmalloc_array(&pdata->pdev->dev,
 			XGENE_EXTD_STATS_LEN, sizeof(u64), GFP_KERNEL);
 	if (!pdata->extd_stats)
 		return -ENOMEM;

 	xgene_get_extd_stats(pdata);
 	memset(pdata->extd_stats, 0, XGENE_EXTD_STATS_LEN * sizeof(u64));

 	return 0;
 }

 static void xgene_get_ethtool_stats(struct net_device *ndev,
 				    struct ethtool_stats *dummy,
 				    u64 *data)
 {
 	struct xgene_enet_pdata *pdata = netdev_priv(ndev);
 	struct rtnl_link_stats64 stats;
 	int i;

 	dev_get_stats(ndev, &stats);
 	for (i = 0; i < XGENE_STATS_LEN; i++)
 		data[i] = *(u64 *)((char *)&stats + gstrings_stats[i].offset);

 	xgene_get_extd_stats(pdata);
 	for (i = 0; i < XGENE_EXTD_STATS_LEN; i++)
 		data[i + XGENE_STATS_LEN] = pdata->extd_stats[i];
 }

 static void xgene_get_pauseparam(struct net_device *ndev,
 				 struct ethtool_pauseparam *pp)
 {
 	struct xgene_enet_pdata *pdata = netdev_priv(ndev);

 	pp->autoneg = pdata->pause_autoneg;
 	pp->tx_pause = pdata->tx_pause;
 	pp->rx_pause = pdata->rx_pause;
 }

 static int xgene_set_pauseparam(struct net_device *ndev,
 				struct ethtool_pauseparam *pp)
 {
 	struct xgene_enet_pdata *pdata = netdev_priv(ndev);
 	struct phy_device *phydev = ndev->phydev;
 	u32 oldadv, newadv;

 	if (phy_interface_mode_is_rgmii(pdata->phy_mode) ||
 	    pdata->phy_mode == PHY_INTERFACE_MODE_SGMII) {
 		if (!phydev)
 			return -EINVAL;

 		if (!(phydev->supported & SUPPORTED_Pause) ||
 		    (!(phydev->supported & SUPPORTED_Asym_Pause) &&
 		     pp->rx_pause != pp->tx_pause))
 			return -EINVAL;

 		pdata->pause_autoneg = pp->autoneg;
 		pdata->tx_pause = pp->tx_pause;
 		pdata->rx_pause = pp->rx_pause;

 		oldadv = phydev->advertising;
 		newadv = oldadv & ~(ADVERTISED_Pause | ADVERTISED_Asym_Pause);

 		if (pp->rx_pause)
 			newadv |= ADVERTISED_Pause | ADVERTISED_Asym_Pause;

 		if (pp->tx_pause)
 			newadv ^= ADVERTISED_Asym_Pause;

 		if (oldadv ^ newadv) {
 			phydev->advertising = newadv;

 			if (phydev->autoneg)
 				return phy_start_aneg(phydev);

 			if (!pp->autoneg) {
 				pdata->mac_ops->flowctl_tx(pdata,
 							   pdata->tx_pause);
 				pdata->mac_ops->flowctl_rx(pdata,
 							   pdata->rx_pause);
 			}
 		}

 	} else {
 		if (pp->autoneg)
 			return -EINVAL;

 		pdata->tx_pause = pp->tx_pause;
 		pdata->rx_pause = pp->rx_pause;

 		pdata->mac_ops->flowctl_tx(pdata, pdata->tx_pause);
 		pdata->mac_ops->flowctl_rx(pdata, pdata->rx_pause);
 	}

 	return 0;
 }

 static const struct ethtool_ops xgene_ethtool_ops = {
 	.get_drvinfo = xgene_get_drvinfo,
 	.get_link = ethtool_op_get_link,
 	.get_strings = xgene_get_strings,
 	.get_sset_count = xgene_get_sset_count,
 	.get_ethtool_stats = xgene_get_ethtool_stats,
 	.get_link_ksettings = xgene_get_link_ksettings,
 	.set_link_ksettings = xgene_set_link_ksettings,
 	.get_pauseparam = xgene_get_pauseparam,
 	.set_pauseparam = xgene_set_pauseparam
 };

 void xgene_enet_set_ethtool_ops(struct net_device *ndev)
 {
 	ndev->ethtool_ops = &xgene_ethtool_ops;
 }
	/* Applied Micro X-Gene SoC Ethernet Driver
	*
	* Copyright (c) 2014, Applied Micro Circuits Corporation
	* Authors: Iyappan Subramanian <isubramanian@apm.com>
	*
	* This program is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License as published by the
	* Free Software Foundation; either version 2 of the License, or (at your
	* option) any later version.
	*
	* This program is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	* GNU General Public License for more details.
	*
	* You should have received a copy of the GNU General Public License
	* along with this program. If not, see <http://www.gnu.org/licenses/>.
	*/

	#include <linux/ethtool.h>
	#include "xgene_enet_main.h"

	struct xgene_gstrings_stats {
	char name[ETH_GSTRING_LEN];
	int offset;
	u32 addr;
	u32 mask;
	};

	#define XGENE_STAT(m) { #m, offsetof(struct rtnl_link_stats64, m) }
	#define XGENE_EXTD_STAT(s, a, m) \
	{ \
	.name = #s, \
	.addr = a ## _ADDR, \
	.mask = m \
	}

	static const struct xgene_gstrings_stats gstrings_stats[] = {
	XGENE_STAT(rx_packets),
	XGENE_STAT(tx_packets),
	XGENE_STAT(rx_bytes),
	XGENE_STAT(tx_bytes),
	XGENE_STAT(rx_errors),
	XGENE_STAT(tx_errors),
	XGENE_STAT(rx_length_errors),
	XGENE_STAT(rx_crc_errors),
	XGENE_STAT(rx_frame_errors),
	XGENE_STAT(rx_fifo_errors)
	};

	static const struct xgene_gstrings_stats gstrings_extd_stats[] = {
	XGENE_EXTD_STAT(tx_rx_64b_frame_cntr, TR64, 31),
	XGENE_EXTD_STAT(tx_rx_127b_frame_cntr, TR127, 31),
	XGENE_EXTD_STAT(tx_rx_255b_frame_cntr, TR255, 31),
	XGENE_EXTD_STAT(tx_rx_511b_frame_cntr, TR511, 31),
	XGENE_EXTD_STAT(tx_rx_1023b_frame_cntr, TR1K, 31),
	XGENE_EXTD_STAT(tx_rx_1518b_frame_cntr, TRMAX, 31),
	XGENE_EXTD_STAT(tx_rx_1522b_frame_cntr, TRMGV, 31),
	XGENE_EXTD_STAT(rx_fcs_error_cntr, RFCS, 16),
	XGENE_EXTD_STAT(rx_multicast_pkt_cntr, RMCA, 31),
	XGENE_EXTD_STAT(rx_broadcast_pkt_cntr, RBCA, 31),
	XGENE_EXTD_STAT(rx_ctrl_frame_pkt_cntr, RXCF, 16),
	XGENE_EXTD_STAT(rx_pause_frame_pkt_cntr, RXPF, 16),
	XGENE_EXTD_STAT(rx_unk_opcode_cntr, RXUO, 16),
	XGENE_EXTD_STAT(rx_align_err_cntr, RALN, 16),
	XGENE_EXTD_STAT(rx_frame_len_err_cntr, RFLR, 16),
	XGENE_EXTD_STAT(rx_frame_len_err_recov_cntr, DUMP, 0),
	XGENE_EXTD_STAT(rx_code_err_cntr, RCDE, 16),
	XGENE_EXTD_STAT(rx_carrier_sense_err_cntr, RCSE, 16),
	XGENE_EXTD_STAT(rx_undersize_pkt_cntr, RUND, 16),
	XGENE_EXTD_STAT(rx_oversize_pkt_cntr, ROVR, 16),
	XGENE_EXTD_STAT(rx_fragments_cntr, RFRG, 16),
	XGENE_EXTD_STAT(rx_jabber_cntr, RJBR, 16),
	XGENE_EXTD_STAT(rx_jabber_recov_cntr, DUMP, 0),
	XGENE_EXTD_STAT(rx_dropped_pkt_cntr, RDRP, 16),
	XGENE_EXTD_STAT(rx_overrun_cntr, DUMP, 0),
	XGENE_EXTD_STAT(tx_multicast_pkt_cntr, TMCA, 31),
	XGENE_EXTD_STAT(tx_broadcast_pkt_cntr, TBCA, 31),
	XGENE_EXTD_STAT(tx_pause_ctrl_frame_cntr, TXPF, 16),
	XGENE_EXTD_STAT(tx_defer_pkt_cntr, TDFR, 31),
	XGENE_EXTD_STAT(tx_excv_defer_pkt_cntr, TEDF, 31),
	XGENE_EXTD_STAT(tx_single_col_pkt_cntr, TSCL, 31),
	XGENE_EXTD_STAT(tx_multi_col_pkt_cntr, TMCL, 31),
	XGENE_EXTD_STAT(tx_late_col_pkt_cntr, TLCL, 31),
	XGENE_EXTD_STAT(tx_excv_col_pkt_cntr, TXCL, 31),
	XGENE_EXTD_STAT(tx_total_col_cntr, TNCL, 31),
	XGENE_EXTD_STAT(tx_pause_frames_hnrd_cntr, TPFH, 16),
	XGENE_EXTD_STAT(tx_drop_frame_cntr, TDRP, 16),
	XGENE_EXTD_STAT(tx_jabber_frame_cntr, TJBR, 12),
	XGENE_EXTD_STAT(tx_fcs_error_cntr, TFCS, 12),
	XGENE_EXTD_STAT(tx_ctrl_frame_cntr, TXCF, 12),
	XGENE_EXTD_STAT(tx_oversize_frame_cntr, TOVR, 12),
	XGENE_EXTD_STAT(tx_undersize_frame_cntr, TUND, 12),
	XGENE_EXTD_STAT(tx_fragments_cntr, TFRG, 12),
	XGENE_EXTD_STAT(tx_underrun_cntr, DUMP, 0)
	};

	#define XGENE_STATS_LEN ARRAY_SIZE(gstrings_stats)
	#define XGENE_EXTD_STATS_LEN ARRAY_SIZE(gstrings_extd_stats)
	#define RFCS_IDX 7
	#define RALN_IDX 13
	#define RFLR_IDX 14
	#define FALSE_RFLR_IDX 15
	#define RUND_IDX 18
	#define FALSE_RJBR_IDX 22
	#define RX_OVERRUN_IDX 24
	#define TFCS_IDX 38
	#define TFRG_IDX 42
	#define TX_UNDERRUN_IDX 43

	static void xgene_get_drvinfo(struct net_device *ndev,
	struct ethtool_drvinfo *info)
	{
	struct xgene_enet_pdata *pdata = netdev_priv(ndev);
	struct platform_device *pdev = pdata->pdev;

	strcpy(info->driver, "xgene_enet");
	strcpy(info->version, XGENE_DRV_VERSION);
	snprintf(info->fw_version, ETHTOOL_FWVERS_LEN, "N/A");
	sprintf(info->bus_info, "%s", pdev->name);
	}

	static int xgene_get_link_ksettings(struct net_device *ndev,
	struct ethtool_link_ksettings *cmd)
	{
	struct xgene_enet_pdata *pdata = netdev_priv(ndev);
	struct phy_device *phydev = ndev->phydev;
	u32 supported;

	if (phy_interface_mode_is_rgmii(pdata->phy_mode)) {
	if (phydev == NULL)
	return -ENODEV;

	phy_ethtool_ksettings_get(phydev, cmd);

	return 0;
	} else if (pdata->phy_mode == PHY_INTERFACE_MODE_SGMII) {
	if (pdata->mdio_driver) {
	if (!phydev)
	return -ENODEV;

	phy_ethtool_ksettings_get(phydev, cmd);

	return 0;
	}

	supported = SUPPORTED_1000baseT_Full \| SUPPORTED_Autoneg \|
	SUPPORTED_MII;
	ethtool_convert_legacy_u32_to_link_mode(
	cmd->link_modes.supported,
	supported);
	ethtool_convert_legacy_u32_to_link_mode(
	cmd->link_modes.advertising,
	supported);

	cmd->base.speed = SPEED_1000;
	cmd->base.duplex = DUPLEX_FULL;
	cmd->base.port = PORT_MII;
	cmd->base.autoneg = AUTONEG_ENABLE;
	} else {
	supported = SUPPORTED_10000baseT_Full \| SUPPORTED_FIBRE;
	ethtool_convert_legacy_u32_to_link_mode(
	cmd->link_modes.supported,
	supported);
	ethtool_convert_legacy_u32_to_link_mode(
	cmd->link_modes.advertising,
	supported);

	cmd->base.speed = SPEED_10000;
	cmd->base.duplex = DUPLEX_FULL;
	cmd->base.port = PORT_FIBRE;
	cmd->base.autoneg = AUTONEG_DISABLE;
	}

	return 0;
	}

	static int xgene_set_link_ksettings(struct net_device *ndev,
	const struct ethtool_link_ksettings *cmd)
	{
	struct xgene_enet_pdata *pdata = netdev_priv(ndev);
	struct phy_device *phydev = ndev->phydev;

	if (phy_interface_mode_is_rgmii(pdata->phy_mode)) {
	if (!phydev)
	return -ENODEV;

	return phy_ethtool_ksettings_set(phydev, cmd);
	}

	if (pdata->phy_mode == PHY_INTERFACE_MODE_SGMII) {
	if (pdata->mdio_driver) {
	if (!phydev)
	return -ENODEV;

	return phy_ethtool_ksettings_set(phydev, cmd);
	}
	}

	return -EINVAL;
	}

	static void xgene_get_strings(struct net_device ndev, u32 stringset, u8 data)
	{
	int i;
	u8 *p = data;

	if (stringset != ETH_SS_STATS)
	return;

	for (i = 0; i < XGENE_STATS_LEN; i++) {
	memcpy(p, gstrings_stats[i].name, ETH_GSTRING_LEN);
	p += ETH_GSTRING_LEN;
	}

	for (i = 0; i < XGENE_EXTD_STATS_LEN; i++) {
	memcpy(p, gstrings_extd_stats[i].name, ETH_GSTRING_LEN);
	p += ETH_GSTRING_LEN;
	}
	}

	static int xgene_get_sset_count(struct net_device *ndev, int sset)
	{
	if (sset != ETH_SS_STATS)
	return -EINVAL;

	return XGENE_STATS_LEN + XGENE_EXTD_STATS_LEN;
	}

	static void xgene_get_extd_stats(struct xgene_enet_pdata *pdata)
	{
	u32 rx_drop, tx_drop;
	u32 mask, tmp;
	int i;

	for (i = 0; i < XGENE_EXTD_STATS_LEN; i++) {
	tmp = xgene_enet_rd_stat(pdata, gstrings_extd_stats[i].addr);
	if (gstrings_extd_stats[i].mask) {
	mask = GENMASK(gstrings_extd_stats[i].mask - 1, 0);
	pdata->extd_stats[i] += (tmp & mask);
	}
	}

	if (pdata->phy_mode == PHY_INTERFACE_MODE_XGMII) {
	/* Errata 10GE_10 - SW should intepret RALN as 0 */
	pdata->extd_stats[RALN_IDX] = 0;
	} else {
	/* Errata ENET_15 - Fixes RFCS, RFLR, TFCS counter */
	pdata->extd_stats[RFCS_IDX] -= pdata->extd_stats[RALN_IDX];
	pdata->extd_stats[RFLR_IDX] -= pdata->extd_stats[RUND_IDX];
	pdata->extd_stats[TFCS_IDX] -= pdata->extd_stats[TFRG_IDX];
	}

	pdata->mac_ops->get_drop_cnt(pdata, &rx_drop, &tx_drop);
	pdata->extd_stats[RX_OVERRUN_IDX] += rx_drop;
	pdata->extd_stats[TX_UNDERRUN_IDX] += tx_drop;

	/* Errata 10GE_8 - Update Frame recovered from Errata 10GE_8/ENET_11 */
	pdata->extd_stats[FALSE_RFLR_IDX] = pdata->false_rflr;
	/* Errata ENET_15 - Jabber Frame recov'ed from Errata 10GE_10/ENET_15 */
	pdata->extd_stats[FALSE_RJBR_IDX] = pdata->vlan_rjbr;
	}

	int xgene_extd_stats_init(struct xgene_enet_pdata *pdata)
	{
	pdata->extd_stats = devm_kmalloc_array(&pdata->pdev->dev,
	XGENE_EXTD_STATS_LEN, sizeof(u64), GFP_KERNEL);
	if (!pdata->extd_stats)
	return -ENOMEM;

	xgene_get_extd_stats(pdata);
	memset(pdata->extd_stats, 0, XGENE_EXTD_STATS_LEN * sizeof(u64));

	return 0;
	}

	static void xgene_get_ethtool_stats(struct net_device *ndev,
	struct ethtool_stats *dummy,
	u64 *data)
	{
	struct xgene_enet_pdata *pdata = netdev_priv(ndev);
	struct rtnl_link_stats64 stats;
	int i;

	dev_get_stats(ndev, &stats);
	for (i = 0; i < XGENE_STATS_LEN; i++)
	data[i] = (u64 )((char *)&stats + gstrings_stats[i].offset);

	xgene_get_extd_stats(pdata);
	for (i = 0; i < XGENE_EXTD_STATS_LEN; i++)
	data[i + XGENE_STATS_LEN] = pdata->extd_stats[i];
	}

	static void xgene_get_pauseparam(struct net_device *ndev,
	struct ethtool_pauseparam *pp)
	{
	struct xgene_enet_pdata *pdata = netdev_priv(ndev);

	pp->autoneg = pdata->pause_autoneg;
	pp->tx_pause = pdata->tx_pause;
	pp->rx_pause = pdata->rx_pause;
	}

	static int xgene_set_pauseparam(struct net_device *ndev,
	struct ethtool_pauseparam *pp)
	{
	struct xgene_enet_pdata *pdata = netdev_priv(ndev);
	struct phy_device *phydev = ndev->phydev;
	u32 oldadv, newadv;

	if (phy_interface_mode_is_rgmii(pdata->phy_mode) \|\|
	pdata->phy_mode == PHY_INTERFACE_MODE_SGMII) {
	if (!phydev)
	return -EINVAL;

	if (!(phydev->supported & SUPPORTED_Pause) \|\|
	(!(phydev->supported & SUPPORTED_Asym_Pause) &&
	pp->rx_pause != pp->tx_pause))
	return -EINVAL;

	pdata->pause_autoneg = pp->autoneg;
	pdata->tx_pause = pp->tx_pause;
	pdata->rx_pause = pp->rx_pause;

	oldadv = phydev->advertising;
	newadv = oldadv & ~(ADVERTISED_Pause \| ADVERTISED_Asym_Pause);

	if (pp->rx_pause)
	newadv \|= ADVERTISED_Pause \| ADVERTISED_Asym_Pause;

	if (pp->tx_pause)
	newadv ^= ADVERTISED_Asym_Pause;

	if (oldadv ^ newadv) {
	phydev->advertising = newadv;

	if (phydev->autoneg)
	return phy_start_aneg(phydev);

	if (!pp->autoneg) {
	pdata->mac_ops->flowctl_tx(pdata,
	pdata->tx_pause);
	pdata->mac_ops->flowctl_rx(pdata,
	pdata->rx_pause);
	}
	}

	} else {
	if (pp->autoneg)
	return -EINVAL;

	pdata->tx_pause = pp->tx_pause;
	pdata->rx_pause = pp->rx_pause;

	pdata->mac_ops->flowctl_tx(pdata, pdata->tx_pause);
	pdata->mac_ops->flowctl_rx(pdata, pdata->rx_pause);
	}

	return 0;
	}

	static const struct ethtool_ops xgene_ethtool_ops = {
	.get_drvinfo = xgene_get_drvinfo,
	.get_link = ethtool_op_get_link,
	.get_strings = xgene_get_strings,
	.get_sset_count = xgene_get_sset_count,
	.get_ethtool_stats = xgene_get_ethtool_stats,
	.get_link_ksettings = xgene_get_link_ksettings,
	.set_link_ksettings = xgene_set_link_ksettings,
	.get_pauseparam = xgene_get_pauseparam,
	.set_pauseparam = xgene_set_pauseparam
	};

	void xgene_enet_set_ethtool_ops(struct net_device *ndev)
	{
	ndev->ethtool_ops = &xgene_ethtool_ops;
	}