drivers/net/ethernet/huawei/hinic/hinic_ethtool.c - platform/external/linux-kselftest - Git at Google

 // SPDX-License-Identifier: GPL-2.0
 /* Huawei HiNIC PCI Express Linux driver
  * Copyright(c) 2017 Huawei Technologies Co., Ltd
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms and conditions of the GNU General Public License,
  * version 2, as published by the Free Software Foundation.
  *
  * This program is distributed in the hope 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.
  *
  */

 #include <linux/kernel.h>
 #include <linux/pci.h>
 #include <linux/device.h>
 #include <linux/module.h>
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/interrupt.h>
 #include <linux/etherdevice.h>
 #include <linux/netdevice.h>
 #include <linux/if_vlan.h>
 #include <linux/ethtool.h>
 #include <linux/vmalloc.h>

 #include "hinic_hw_qp.h"
 #include "hinic_hw_dev.h"
 #include "hinic_port.h"
 #include "hinic_tx.h"
 #include "hinic_rx.h"
 #include "hinic_dev.h"

 static void set_link_speed(struct ethtool_link_ksettings *link_ksettings,
 			   enum hinic_speed speed)
 {
 	switch (speed) {
 	case HINIC_SPEED_10MB_LINK:
 		link_ksettings->base.speed = SPEED_10;
 		break;

 	case HINIC_SPEED_100MB_LINK:
 		link_ksettings->base.speed = SPEED_100;
 		break;

 	case HINIC_SPEED_1000MB_LINK:
 		link_ksettings->base.speed = SPEED_1000;
 		break;

 	case HINIC_SPEED_10GB_LINK:
 		link_ksettings->base.speed = SPEED_10000;
 		break;

 	case HINIC_SPEED_25GB_LINK:
 		link_ksettings->base.speed = SPEED_25000;
 		break;

 	case HINIC_SPEED_40GB_LINK:
 		link_ksettings->base.speed = SPEED_40000;
 		break;

 	case HINIC_SPEED_100GB_LINK:
 		link_ksettings->base.speed = SPEED_100000;
 		break;

 	default:
 		link_ksettings->base.speed = SPEED_UNKNOWN;
 		break;
 	}
 }

 static int hinic_get_link_ksettings(struct net_device *netdev,
 				    struct ethtool_link_ksettings
 				    *link_ksettings)
 {
 	struct hinic_dev *nic_dev = netdev_priv(netdev);
 	enum hinic_port_link_state link_state;
 	struct hinic_port_cap port_cap;
 	int err;

 	ethtool_link_ksettings_zero_link_mode(link_ksettings, advertising);
 	ethtool_link_ksettings_add_link_mode(link_ksettings, supported,
 					     Autoneg);

 	link_ksettings->base.speed = SPEED_UNKNOWN;
 	link_ksettings->base.autoneg = AUTONEG_DISABLE;
 	link_ksettings->base.duplex = DUPLEX_UNKNOWN;

 	err = hinic_port_get_cap(nic_dev, &port_cap);
 	if (err)
 		return err;

 	err = hinic_port_link_state(nic_dev, &link_state);
 	if (err)
 		return err;

 	if (link_state != HINIC_LINK_STATE_UP)
 		return err;

 	set_link_speed(link_ksettings, port_cap.speed);

 	if (!!(port_cap.autoneg_cap & HINIC_AUTONEG_SUPPORTED))
 		ethtool_link_ksettings_add_link_mode(link_ksettings,
 						     advertising, Autoneg);

 	if (port_cap.autoneg_state == HINIC_AUTONEG_ACTIVE)
 		link_ksettings->base.autoneg = AUTONEG_ENABLE;

 	link_ksettings->base.duplex = (port_cap.duplex == HINIC_DUPLEX_FULL) ?
 					   DUPLEX_FULL : DUPLEX_HALF;
 	return 0;
 }

 static void hinic_get_drvinfo(struct net_device *netdev,
 			      struct ethtool_drvinfo *info)
 {
 	struct hinic_dev *nic_dev = netdev_priv(netdev);
 	struct hinic_hwdev *hwdev = nic_dev->hwdev;
 	struct hinic_hwif *hwif = hwdev->hwif;

 	strlcpy(info->driver, HINIC_DRV_NAME, sizeof(info->driver));
 	strlcpy(info->bus_info, pci_name(hwif->pdev), sizeof(info->bus_info));
 }

 static void hinic_get_ringparam(struct net_device *netdev,
 				struct ethtool_ringparam *ring)
 {
 	ring->rx_max_pending = HINIC_RQ_DEPTH;
 	ring->tx_max_pending = HINIC_SQ_DEPTH;
 	ring->rx_pending = HINIC_RQ_DEPTH;
 	ring->tx_pending = HINIC_SQ_DEPTH;
 }

 static void hinic_get_channels(struct net_device *netdev,
 			       struct ethtool_channels *channels)
 {
 	struct hinic_dev *nic_dev = netdev_priv(netdev);
 	struct hinic_hwdev *hwdev = nic_dev->hwdev;

 	channels->max_rx = hwdev->nic_cap.max_qps;
 	channels->max_tx = hwdev->nic_cap.max_qps;
 	channels->max_other = 0;
 	channels->max_combined = 0;
 	channels->rx_count = hinic_hwdev_num_qps(hwdev);
 	channels->tx_count = hinic_hwdev_num_qps(hwdev);
 	channels->other_count = 0;
 	channels->combined_count = 0;
 }

 static int hinic_get_rss_hash_opts(struct hinic_dev *nic_dev,
 				   struct ethtool_rxnfc *cmd)
 {
 	struct hinic_rss_type rss_type = { 0 };
 	int err;

 	cmd->data = 0;

 	if (!(nic_dev->flags & HINIC_RSS_ENABLE))
 		return 0;

 	err = hinic_get_rss_type(nic_dev, nic_dev->rss_tmpl_idx,
 				 &rss_type);
 	if (err)
 		return err;

 	cmd->data = RXH_IP_SRC | RXH_IP_DST;
 	switch (cmd->flow_type) {
 	case TCP_V4_FLOW:
 		if (rss_type.tcp_ipv4)
 			cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
 		break;
 	case TCP_V6_FLOW:
 		if (rss_type.tcp_ipv6)
 			cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
 		break;
 	case UDP_V4_FLOW:
 		if (rss_type.udp_ipv4)
 			cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
 		break;
 	case UDP_V6_FLOW:
 		if (rss_type.udp_ipv6)
 			cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
 		break;
 	case IPV4_FLOW:
 	case IPV6_FLOW:
 		break;
 	default:
 		cmd->data = 0;
 		return -EINVAL;
 	}

 	return 0;
 }

 static int set_l4_rss_hash_ops(struct ethtool_rxnfc *cmd,
 			       struct hinic_rss_type *rss_type)
 {
 	u8 rss_l4_en = 0;

 	switch (cmd->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
 	case 0:
 		rss_l4_en = 0;
 		break;
 	case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
 		rss_l4_en = 1;
 		break;
 	default:
 		return -EINVAL;
 	}

 	switch (cmd->flow_type) {
 	case TCP_V4_FLOW:
 		rss_type->tcp_ipv4 = rss_l4_en;
 		break;
 	case TCP_V6_FLOW:
 		rss_type->tcp_ipv6 = rss_l4_en;
 		break;
 	case UDP_V4_FLOW:
 		rss_type->udp_ipv4 = rss_l4_en;
 		break;
 	case UDP_V6_FLOW:
 		rss_type->udp_ipv6 = rss_l4_en;
 		break;
 	default:
 		return -EINVAL;
 	}

 	return 0;
 }

 static int hinic_set_rss_hash_opts(struct hinic_dev *nic_dev,
 				   struct ethtool_rxnfc *cmd)
 {
 	struct hinic_rss_type *rss_type = &nic_dev->rss_type;
 	int err;

 	if (!(nic_dev->flags & HINIC_RSS_ENABLE)) {
 		cmd->data = 0;
 		return -EOPNOTSUPP;
 	}

 	/* RSS does not support anything other than hashing
 	 * to queues on src and dst IPs and ports
 	 */
 	if (cmd->data & ~(RXH_IP_SRC | RXH_IP_DST | RXH_L4_B_0_1 |
 		RXH_L4_B_2_3))
 		return -EINVAL;

 	/* We need at least the IP SRC and DEST fields for hashing */
 	if (!(cmd->data & RXH_IP_SRC) || !(cmd->data & RXH_IP_DST))
 		return -EINVAL;

 	err = hinic_get_rss_type(nic_dev,
 				 nic_dev->rss_tmpl_idx, rss_type);
 	if (err)
 		return -EFAULT;

 	switch (cmd->flow_type) {
 	case TCP_V4_FLOW:
 	case TCP_V6_FLOW:
 	case UDP_V4_FLOW:
 	case UDP_V6_FLOW:
 		err = set_l4_rss_hash_ops(cmd, rss_type);
 		if (err)
 			return err;
 		break;
 	case IPV4_FLOW:
 		rss_type->ipv4 = 1;
 		break;
 	case IPV6_FLOW:
 		rss_type->ipv6 = 1;
 		break;
 	default:
 		return -EINVAL;
 	}

 	err = hinic_set_rss_type(nic_dev, nic_dev->rss_tmpl_idx,
 				 *rss_type);
 	if (err)
 		return -EFAULT;

 	return 0;
 }

 static int __set_rss_rxfh(struct net_device *netdev,
 			  const u32 *indir, const u8 *key)
 {
 	struct hinic_dev *nic_dev = netdev_priv(netdev);
 	int err;

 	if (indir) {
 		if (!nic_dev->rss_indir_user) {
 			nic_dev->rss_indir_user =
 				kzalloc(sizeof(u32) * HINIC_RSS_INDIR_SIZE,
 					GFP_KERNEL);
 			if (!nic_dev->rss_indir_user)
 				return -ENOMEM;
 		}

 		memcpy(nic_dev->rss_indir_user, indir,
 		       sizeof(u32) * HINIC_RSS_INDIR_SIZE);

 		err = hinic_rss_set_indir_tbl(nic_dev,
 					      nic_dev->rss_tmpl_idx, indir);
 		if (err)
 			return -EFAULT;
 	}

 	if (key) {
 		if (!nic_dev->rss_hkey_user) {
 			nic_dev->rss_hkey_user =
 				kzalloc(HINIC_RSS_KEY_SIZE * 2, GFP_KERNEL);

 			if (!nic_dev->rss_hkey_user)
 				return -ENOMEM;
 		}

 		memcpy(nic_dev->rss_hkey_user, key, HINIC_RSS_KEY_SIZE);

 		err = hinic_rss_set_template_tbl(nic_dev,
 						 nic_dev->rss_tmpl_idx, key);
 		if (err)
 			return -EFAULT;
 	}

 	return 0;
 }

 static int hinic_get_rxnfc(struct net_device *netdev,
 			   struct ethtool_rxnfc *cmd, u32 *rule_locs)
 {
 	struct hinic_dev *nic_dev = netdev_priv(netdev);
 	int err = 0;

 	switch (cmd->cmd) {
 	case ETHTOOL_GRXRINGS:
 		cmd->data = nic_dev->num_qps;
 		break;
 	case ETHTOOL_GRXFH:
 		err = hinic_get_rss_hash_opts(nic_dev, cmd);
 		break;
 	default:
 		err = -EOPNOTSUPP;
 		break;
 	}

 	return err;
 }

 static int hinic_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd)
 {
 	struct hinic_dev *nic_dev = netdev_priv(netdev);
 	int err = 0;

 	switch (cmd->cmd) {
 	case ETHTOOL_SRXFH:
 		err = hinic_set_rss_hash_opts(nic_dev, cmd);
 		break;
 	default:
 		err = -EOPNOTSUPP;
 		break;
 	}

 	return err;
 }

 static int hinic_get_rxfh(struct net_device *netdev,
 			  u32 *indir, u8 *key, u8 *hfunc)
 {
 	struct hinic_dev *nic_dev = netdev_priv(netdev);
 	u8 hash_engine_type = 0;
 	int err = 0;

 	if (!(nic_dev->flags & HINIC_RSS_ENABLE))
 		return -EOPNOTSUPP;

 	if (hfunc) {
 		err = hinic_rss_get_hash_engine(nic_dev,
 						nic_dev->rss_tmpl_idx,
 						&hash_engine_type);
 		if (err)
 			return -EFAULT;

 		*hfunc = hash_engine_type ? ETH_RSS_HASH_TOP : ETH_RSS_HASH_XOR;
 	}

 	if (indir) {
 		err = hinic_rss_get_indir_tbl(nic_dev,
 					      nic_dev->rss_tmpl_idx, indir);
 		if (err)
 			return -EFAULT;
 	}

 	if (key)
 		err = hinic_rss_get_template_tbl(nic_dev,
 						 nic_dev->rss_tmpl_idx, key);

 	return err;
 }

 static int hinic_set_rxfh(struct net_device *netdev, const u32 *indir,
 			  const u8 *key, const u8 hfunc)
 {
 	struct hinic_dev *nic_dev = netdev_priv(netdev);
 	int err = 0;

 	if (!(nic_dev->flags & HINIC_RSS_ENABLE))
 		return -EOPNOTSUPP;

 	if (hfunc != ETH_RSS_HASH_NO_CHANGE) {
 		if (hfunc != ETH_RSS_HASH_TOP && hfunc != ETH_RSS_HASH_XOR)
 			return -EOPNOTSUPP;

 		nic_dev->rss_hash_engine = (hfunc == ETH_RSS_HASH_XOR) ?
 			HINIC_RSS_HASH_ENGINE_TYPE_XOR :
 			HINIC_RSS_HASH_ENGINE_TYPE_TOEP;
 		err = hinic_rss_set_hash_engine
 			(nic_dev, nic_dev->rss_tmpl_idx,
 			nic_dev->rss_hash_engine);
 		if (err)
 			return -EFAULT;
 	}

 	err = __set_rss_rxfh(netdev, indir, key);

 	return err;
 }

 static u32 hinic_get_rxfh_key_size(struct net_device *netdev)
 {
 	return HINIC_RSS_KEY_SIZE;
 }

 static u32 hinic_get_rxfh_indir_size(struct net_device *netdev)
 {
 	return HINIC_RSS_INDIR_SIZE;
 }

 static const struct ethtool_ops hinic_ethtool_ops = {
 	.get_link_ksettings = hinic_get_link_ksettings,
 	.get_drvinfo = hinic_get_drvinfo,
 	.get_link = ethtool_op_get_link,
 	.get_ringparam = hinic_get_ringparam,
 	.get_channels = hinic_get_channels,
 	.get_rxnfc = hinic_get_rxnfc,
 	.set_rxnfc = hinic_set_rxnfc,
 	.get_rxfh_key_size = hinic_get_rxfh_key_size,
 	.get_rxfh_indir_size = hinic_get_rxfh_indir_size,
 	.get_rxfh = hinic_get_rxfh,
 	.set_rxfh = hinic_set_rxfh,
 };

 void hinic_set_ethtool_ops(struct net_device *netdev)
 {
 	netdev->ethtool_ops = &hinic_ethtool_ops;
 }
	// SPDX-License-Identifier: GPL-2.0
	/* Huawei HiNIC PCI Express Linux driver
	* Copyright(c) 2017 Huawei Technologies Co., Ltd
	*
	* This program is free software; you can redistribute it and/or modify it
	* under the terms and conditions of the GNU General Public License,
	* version 2, as published by the Free Software Foundation.
	*
	* This program is distributed in the hope 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.
	*
	*/

	#include <linux/kernel.h>
	#include <linux/pci.h>
	#include <linux/device.h>
	#include <linux/module.h>
	#include <linux/types.h>
	#include <linux/errno.h>
	#include <linux/interrupt.h>
	#include <linux/etherdevice.h>
	#include <linux/netdevice.h>
	#include <linux/if_vlan.h>
	#include <linux/ethtool.h>
	#include <linux/vmalloc.h>

	#include "hinic_hw_qp.h"
	#include "hinic_hw_dev.h"
	#include "hinic_port.h"
	#include "hinic_tx.h"
	#include "hinic_rx.h"
	#include "hinic_dev.h"

	static void set_link_speed(struct ethtool_link_ksettings *link_ksettings,
	enum hinic_speed speed)
	{
	switch (speed) {
	case HINIC_SPEED_10MB_LINK:
	link_ksettings->base.speed = SPEED_10;
	break;

	case HINIC_SPEED_100MB_LINK:
	link_ksettings->base.speed = SPEED_100;
	break;

	case HINIC_SPEED_1000MB_LINK:
	link_ksettings->base.speed = SPEED_1000;
	break;

	case HINIC_SPEED_10GB_LINK:
	link_ksettings->base.speed = SPEED_10000;
	break;

	case HINIC_SPEED_25GB_LINK:
	link_ksettings->base.speed = SPEED_25000;
	break;

	case HINIC_SPEED_40GB_LINK:
	link_ksettings->base.speed = SPEED_40000;
	break;

	case HINIC_SPEED_100GB_LINK:
	link_ksettings->base.speed = SPEED_100000;
	break;

	default:
	link_ksettings->base.speed = SPEED_UNKNOWN;
	break;
	}
	}

	static int hinic_get_link_ksettings(struct net_device *netdev,
	struct ethtool_link_ksettings
	*link_ksettings)
	{
	struct hinic_dev *nic_dev = netdev_priv(netdev);
	enum hinic_port_link_state link_state;
	struct hinic_port_cap port_cap;
	int err;

	ethtool_link_ksettings_zero_link_mode(link_ksettings, advertising);
	ethtool_link_ksettings_add_link_mode(link_ksettings, supported,
	Autoneg);

	link_ksettings->base.speed = SPEED_UNKNOWN;
	link_ksettings->base.autoneg = AUTONEG_DISABLE;
	link_ksettings->base.duplex = DUPLEX_UNKNOWN;

	err = hinic_port_get_cap(nic_dev, &port_cap);
	if (err)
	return err;

	err = hinic_port_link_state(nic_dev, &link_state);
	if (err)
	return err;

	if (link_state != HINIC_LINK_STATE_UP)
	return err;

	set_link_speed(link_ksettings, port_cap.speed);

	if (!!(port_cap.autoneg_cap & HINIC_AUTONEG_SUPPORTED))
	ethtool_link_ksettings_add_link_mode(link_ksettings,
	advertising, Autoneg);

	if (port_cap.autoneg_state == HINIC_AUTONEG_ACTIVE)
	link_ksettings->base.autoneg = AUTONEG_ENABLE;

	link_ksettings->base.duplex = (port_cap.duplex == HINIC_DUPLEX_FULL) ?
	DUPLEX_FULL : DUPLEX_HALF;
	return 0;
	}

	static void hinic_get_drvinfo(struct net_device *netdev,
	struct ethtool_drvinfo *info)
	{
	struct hinic_dev *nic_dev = netdev_priv(netdev);
	struct hinic_hwdev *hwdev = nic_dev->hwdev;
	struct hinic_hwif *hwif = hwdev->hwif;

	strlcpy(info->driver, HINIC_DRV_NAME, sizeof(info->driver));
	strlcpy(info->bus_info, pci_name(hwif->pdev), sizeof(info->bus_info));
	}

	static void hinic_get_ringparam(struct net_device *netdev,
	struct ethtool_ringparam *ring)
	{
	ring->rx_max_pending = HINIC_RQ_DEPTH;
	ring->tx_max_pending = HINIC_SQ_DEPTH;
	ring->rx_pending = HINIC_RQ_DEPTH;
	ring->tx_pending = HINIC_SQ_DEPTH;
	}

	static void hinic_get_channels(struct net_device *netdev,
	struct ethtool_channels *channels)
	{
	struct hinic_dev *nic_dev = netdev_priv(netdev);
	struct hinic_hwdev *hwdev = nic_dev->hwdev;

	channels->max_rx = hwdev->nic_cap.max_qps;
	channels->max_tx = hwdev->nic_cap.max_qps;
	channels->max_other = 0;
	channels->max_combined = 0;
	channels->rx_count = hinic_hwdev_num_qps(hwdev);
	channels->tx_count = hinic_hwdev_num_qps(hwdev);
	channels->other_count = 0;
	channels->combined_count = 0;
	}

	static int hinic_get_rss_hash_opts(struct hinic_dev *nic_dev,
	struct ethtool_rxnfc *cmd)
	{
	struct hinic_rss_type rss_type = { 0 };
	int err;

	cmd->data = 0;

	if (!(nic_dev->flags & HINIC_RSS_ENABLE))
	return 0;

	err = hinic_get_rss_type(nic_dev, nic_dev->rss_tmpl_idx,
	&rss_type);
	if (err)
	return err;

	cmd->data = RXH_IP_SRC \| RXH_IP_DST;
	switch (cmd->flow_type) {
	case TCP_V4_FLOW:
	if (rss_type.tcp_ipv4)
	cmd->data \|= RXH_L4_B_0_1 \| RXH_L4_B_2_3;
	break;
	case TCP_V6_FLOW:
	if (rss_type.tcp_ipv6)
	cmd->data \|= RXH_L4_B_0_1 \| RXH_L4_B_2_3;
	break;
	case UDP_V4_FLOW:
	if (rss_type.udp_ipv4)
	cmd->data \|= RXH_L4_B_0_1 \| RXH_L4_B_2_3;
	break;
	case UDP_V6_FLOW:
	if (rss_type.udp_ipv6)
	cmd->data \|= RXH_L4_B_0_1 \| RXH_L4_B_2_3;
	break;
	case IPV4_FLOW:
	case IPV6_FLOW:
	break;
	default:
	cmd->data = 0;
	return -EINVAL;
	}

	return 0;
	}

	static int set_l4_rss_hash_ops(struct ethtool_rxnfc *cmd,
	struct hinic_rss_type *rss_type)
	{
	u8 rss_l4_en = 0;

	switch (cmd->data & (RXH_L4_B_0_1 \| RXH_L4_B_2_3)) {
	case 0:
	rss_l4_en = 0;
	break;
	case (RXH_L4_B_0_1 \| RXH_L4_B_2_3):
	rss_l4_en = 1;
	break;
	default:
	return -EINVAL;
	}

	switch (cmd->flow_type) {
	case TCP_V4_FLOW:
	rss_type->tcp_ipv4 = rss_l4_en;
	break;
	case TCP_V6_FLOW:
	rss_type->tcp_ipv6 = rss_l4_en;
	break;
	case UDP_V4_FLOW:
	rss_type->udp_ipv4 = rss_l4_en;
	break;
	case UDP_V6_FLOW:
	rss_type->udp_ipv6 = rss_l4_en;
	break;
	default:
	return -EINVAL;
	}

	return 0;
	}

	static int hinic_set_rss_hash_opts(struct hinic_dev *nic_dev,
	struct ethtool_rxnfc *cmd)
	{
	struct hinic_rss_type *rss_type = &nic_dev->rss_type;
	int err;

	if (!(nic_dev->flags & HINIC_RSS_ENABLE)) {
	cmd->data = 0;
	return -EOPNOTSUPP;
	}

	/* RSS does not support anything other than hashing
	* to queues on src and dst IPs and ports
	*/
	if (cmd->data & ~(RXH_IP_SRC \| RXH_IP_DST \| RXH_L4_B_0_1 \|
	RXH_L4_B_2_3))
	return -EINVAL;

	/* We need at least the IP SRC and DEST fields for hashing */
	if (!(cmd->data & RXH_IP_SRC) \|\| !(cmd->data & RXH_IP_DST))
	return -EINVAL;

	err = hinic_get_rss_type(nic_dev,
	nic_dev->rss_tmpl_idx, rss_type);
	if (err)
	return -EFAULT;

	switch (cmd->flow_type) {
	case TCP_V4_FLOW:
	case TCP_V6_FLOW:
	case UDP_V4_FLOW:
	case UDP_V6_FLOW:
	err = set_l4_rss_hash_ops(cmd, rss_type);
	if (err)
	return err;
	break;
	case IPV4_FLOW:
	rss_type->ipv4 = 1;
	break;
	case IPV6_FLOW:
	rss_type->ipv6 = 1;
	break;
	default:
	return -EINVAL;
	}

	err = hinic_set_rss_type(nic_dev, nic_dev->rss_tmpl_idx,
	*rss_type);
	if (err)
	return -EFAULT;

	return 0;
	}

	static int __set_rss_rxfh(struct net_device *netdev,
	const u32 indir, const u8 key)
	{
	struct hinic_dev *nic_dev = netdev_priv(netdev);
	int err;

	if (indir) {
	if (!nic_dev->rss_indir_user) {
	nic_dev->rss_indir_user =
	kzalloc(sizeof(u32) * HINIC_RSS_INDIR_SIZE,
	GFP_KERNEL);
	if (!nic_dev->rss_indir_user)
	return -ENOMEM;
	}

	memcpy(nic_dev->rss_indir_user, indir,
	sizeof(u32) * HINIC_RSS_INDIR_SIZE);

	err = hinic_rss_set_indir_tbl(nic_dev,
	nic_dev->rss_tmpl_idx, indir);
	if (err)
	return -EFAULT;
	}

	if (key) {
	if (!nic_dev->rss_hkey_user) {
	nic_dev->rss_hkey_user =
	kzalloc(HINIC_RSS_KEY_SIZE * 2, GFP_KERNEL);

	if (!nic_dev->rss_hkey_user)
	return -ENOMEM;
	}

	memcpy(nic_dev->rss_hkey_user, key, HINIC_RSS_KEY_SIZE);

	err = hinic_rss_set_template_tbl(nic_dev,
	nic_dev->rss_tmpl_idx, key);
	if (err)
	return -EFAULT;
	}

	return 0;
	}

	static int hinic_get_rxnfc(struct net_device *netdev,
	struct ethtool_rxnfc cmd, u32 rule_locs)
	{
	struct hinic_dev *nic_dev = netdev_priv(netdev);
	int err = 0;

	switch (cmd->cmd) {
	case ETHTOOL_GRXRINGS:
	cmd->data = nic_dev->num_qps;
	break;
	case ETHTOOL_GRXFH:
	err = hinic_get_rss_hash_opts(nic_dev, cmd);
	break;
	default:
	err = -EOPNOTSUPP;
	break;
	}

	return err;
	}

	static int hinic_set_rxnfc(struct net_device netdev, struct ethtool_rxnfc cmd)
	{
	struct hinic_dev *nic_dev = netdev_priv(netdev);
	int err = 0;

	switch (cmd->cmd) {
	case ETHTOOL_SRXFH:
	err = hinic_set_rss_hash_opts(nic_dev, cmd);
	break;
	default:
	err = -EOPNOTSUPP;
	break;
	}

	return err;
	}

	static int hinic_get_rxfh(struct net_device *netdev,
	u32 indir, u8 key, u8 *hfunc)
	{
	struct hinic_dev *nic_dev = netdev_priv(netdev);
	u8 hash_engine_type = 0;
	int err = 0;

	if (!(nic_dev->flags & HINIC_RSS_ENABLE))
	return -EOPNOTSUPP;

	if (hfunc) {
	err = hinic_rss_get_hash_engine(nic_dev,
	nic_dev->rss_tmpl_idx,
	&hash_engine_type);
	if (err)
	return -EFAULT;

	*hfunc = hash_engine_type ? ETH_RSS_HASH_TOP : ETH_RSS_HASH_XOR;
	}

	if (indir) {
	err = hinic_rss_get_indir_tbl(nic_dev,
	nic_dev->rss_tmpl_idx, indir);
	if (err)
	return -EFAULT;
	}

	if (key)
	err = hinic_rss_get_template_tbl(nic_dev,
	nic_dev->rss_tmpl_idx, key);

	return err;
	}

	static int hinic_set_rxfh(struct net_device netdev, const u32 indir,
	const u8 *key, const u8 hfunc)
	{
	struct hinic_dev *nic_dev = netdev_priv(netdev);
	int err = 0;

	if (!(nic_dev->flags & HINIC_RSS_ENABLE))
	return -EOPNOTSUPP;

	if (hfunc != ETH_RSS_HASH_NO_CHANGE) {
	if (hfunc != ETH_RSS_HASH_TOP && hfunc != ETH_RSS_HASH_XOR)
	return -EOPNOTSUPP;

	nic_dev->rss_hash_engine = (hfunc == ETH_RSS_HASH_XOR) ?
	HINIC_RSS_HASH_ENGINE_TYPE_XOR :
	HINIC_RSS_HASH_ENGINE_TYPE_TOEP;
	err = hinic_rss_set_hash_engine
	(nic_dev, nic_dev->rss_tmpl_idx,
	nic_dev->rss_hash_engine);
	if (err)
	return -EFAULT;
	}

	err = __set_rss_rxfh(netdev, indir, key);

	return err;
	}

	static u32 hinic_get_rxfh_key_size(struct net_device *netdev)
	{
	return HINIC_RSS_KEY_SIZE;
	}

	static u32 hinic_get_rxfh_indir_size(struct net_device *netdev)
	{
	return HINIC_RSS_INDIR_SIZE;
	}

	static const struct ethtool_ops hinic_ethtool_ops = {
	.get_link_ksettings = hinic_get_link_ksettings,
	.get_drvinfo = hinic_get_drvinfo,
	.get_link = ethtool_op_get_link,
	.get_ringparam = hinic_get_ringparam,
	.get_channels = hinic_get_channels,
	.get_rxnfc = hinic_get_rxnfc,
	.set_rxnfc = hinic_set_rxnfc,
	.get_rxfh_key_size = hinic_get_rxfh_key_size,
	.get_rxfh_indir_size = hinic_get_rxfh_indir_size,
	.get_rxfh = hinic_get_rxfh,
	.set_rxfh = hinic_set_rxfh,
	};

	void hinic_set_ethtool_ops(struct net_device *netdev)
	{
	netdev->ethtool_ops = &hinic_ethtool_ops;
	}