drivers/net/mlx4/en_params.c - kernel/msm-5.4 - Gitiles

 /*
  * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
  *
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed under the terms of the GNU
  * General Public License (GPL) Version 2, available from the file
  * COPYING in the main directory of this source tree, or the
  * OpenIB.org BSD license below:
  *
  *     Redistribution and use in source and binary forms, with or
  *     without modification, are permitted provided that the following
  *     conditions are met:
  *
  *      - Redistributions of source code must retain the above
  *        copyright notice, this list of conditions and the following
  *        disclaimer.
  *
  *      - Redistributions in binary form must reproduce the above
  *        copyright notice, this list of conditions and the following
  *        disclaimer in the documentation and/or other materials
  *        provided with the distribution.
  *
  * 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/kernel.h>
 #include <linux/ethtool.h>
 #include <linux/netdevice.h>

 #include "mlx4_en.h"
 #include "en_port.h"

 #define MLX4_EN_PARM_INT(X, def_val, desc) \
 	static unsigned int X = def_val;\
 	module_param(X , uint, 0444); \
 	MODULE_PARM_DESC(X, desc);


 /*
  * Device scope module parameters
  */


 /* Use a XOR rathern than Toeplitz hash function for RSS */
 MLX4_EN_PARM_INT(rss_xor, 0, "Use XOR hash function for RSS");

 /* RSS hash type mask - default to <saddr, daddr, sport, dport> */
 MLX4_EN_PARM_INT(rss_mask, 0xf, "RSS hash type bitmask");

 /* Number of LRO sessions per Rx ring (rounded up to a power of two) */
 MLX4_EN_PARM_INT(num_lro, MLX4_EN_MAX_LRO_DESCRIPTORS,
 		 "Number of LRO sessions per ring or disabled (0)");

 /* Priority pausing */
 MLX4_EN_PARM_INT(pfctx, 0, "Priority based Flow Control policy on TX[7:0]."
 			   " Per priority bit mask");
 MLX4_EN_PARM_INT(pfcrx, 0, "Priority based Flow Control policy on RX[7:0]."
 			   " Per priority bit mask");

 int mlx4_en_get_profile(struct mlx4_en_dev *mdev)
 {
 	struct mlx4_en_profile *params = &mdev->profile;
 	int i;

 	params->rss_xor = (rss_xor != 0);
 	params->rss_mask = rss_mask & 0x1f;
 	params->num_lro = min_t(int, num_lro , MLX4_EN_MAX_LRO_DESCRIPTORS);
 	for (i = 1; i <= MLX4_MAX_PORTS; i++) {
 		params->prof[i].rx_pause = 1;
 		params->prof[i].rx_ppp = pfcrx;
 		params->prof[i].tx_pause = 1;
 		params->prof[i].tx_ppp = pfctx;
 		params->prof[i].tx_ring_size = MLX4_EN_DEF_TX_RING_SIZE;
 		params->prof[i].rx_ring_size = MLX4_EN_DEF_RX_RING_SIZE;
 	}
 	if (pfcrx || pfctx) {
 		params->prof[1].tx_ring_num = MLX4_EN_TX_RING_NUM;
 		params->prof[2].tx_ring_num = MLX4_EN_TX_RING_NUM;
 	} else {
 		params->prof[1].tx_ring_num = 1;
 		params->prof[2].tx_ring_num = 1;
 	}

 	return 0;
 }


 /*
  * Ethtool support
  */

 static void mlx4_en_update_lro_stats(struct mlx4_en_priv *priv)
 {
 	int i;

 	priv->port_stats.lro_aggregated = 0;
 	priv->port_stats.lro_flushed = 0;
 	priv->port_stats.lro_no_desc = 0;

 	for (i = 0; i < priv->rx_ring_num; i++) {
 		priv->port_stats.lro_aggregated += priv->rx_ring[i].lro.stats.aggregated;
 		priv->port_stats.lro_flushed += priv->rx_ring[i].lro.stats.flushed;
 		priv->port_stats.lro_no_desc += priv->rx_ring[i].lro.stats.no_desc;
 	}
 }

 static void
 mlx4_en_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo)
 {
 	struct mlx4_en_priv *priv = netdev_priv(dev);
 	struct mlx4_en_dev *mdev = priv->mdev;

 	sprintf(drvinfo->driver, DRV_NAME " (%s)", mdev->dev->board_id);
 	strncpy(drvinfo->version, DRV_VERSION " (" DRV_RELDATE ")", 32);
 	sprintf(drvinfo->fw_version, "%d.%d.%d",
 		(u16) (mdev->dev->caps.fw_ver >> 32),
 		(u16) ((mdev->dev->caps.fw_ver >> 16) & 0xffff),
 		(u16) (mdev->dev->caps.fw_ver & 0xffff));
 	strncpy(drvinfo->bus_info, pci_name(mdev->dev->pdev), 32);
 	drvinfo->n_stats = 0;
 	drvinfo->regdump_len = 0;
 	drvinfo->eedump_len = 0;
 }

 static u32 mlx4_en_get_tso(struct net_device *dev)
 {
 	return (dev->features & NETIF_F_TSO) != 0;
 }

 static int mlx4_en_set_tso(struct net_device *dev, u32 data)
 {
 	struct mlx4_en_priv *priv = netdev_priv(dev);

 	if (data) {
 		if (!priv->mdev->LSO_support)
 			return -EPERM;
 		dev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
 	} else
 		dev->features &= ~(NETIF_F_TSO | NETIF_F_TSO6);
 	return 0;
 }

 static u32 mlx4_en_get_rx_csum(struct net_device *dev)
 {
 	struct mlx4_en_priv *priv = netdev_priv(dev);
 	return priv->rx_csum;
 }

 static int mlx4_en_set_rx_csum(struct net_device *dev, u32 data)
 {
 	struct mlx4_en_priv *priv = netdev_priv(dev);
 	priv->rx_csum = (data != 0);
 	return 0;
 }

 static const char main_strings[][ETH_GSTRING_LEN] = {
 	"rx_packets", "tx_packets", "rx_bytes", "tx_bytes", "rx_errors",
 	"tx_errors", "rx_dropped", "tx_dropped", "multicast", "collisions",
 	"rx_length_errors", "rx_over_errors", "rx_crc_errors",
 	"rx_frame_errors", "rx_fifo_errors", "rx_missed_errors",
 	"tx_aborted_errors", "tx_carrier_errors", "tx_fifo_errors",
 	"tx_heartbeat_errors", "tx_window_errors",

 	/* port statistics */
 	"lro_aggregated", "lro_flushed", "lro_no_desc", "tso_packets",
 	"queue_stopped", "wake_queue", "tx_timeout", "rx_alloc_failed",
 	"rx_csum_good", "rx_csum_none", "tx_chksum_offload",

 	/* packet statistics */
 	"broadcast", "rx_prio_0", "rx_prio_1", "rx_prio_2", "rx_prio_3",
 	"rx_prio_4", "rx_prio_5", "rx_prio_6", "rx_prio_7", "tx_prio_0",
 	"tx_prio_1", "tx_prio_2", "tx_prio_3", "tx_prio_4", "tx_prio_5",
 	"tx_prio_6", "tx_prio_7",
 };
 #define NUM_MAIN_STATS	21
 #define NUM_ALL_STATS	(NUM_MAIN_STATS + NUM_PORT_STATS + NUM_PKT_STATS + NUM_PERF_STATS)

 static u32 mlx4_en_get_msglevel(struct net_device *dev)
 {
 	return ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable;
 }

 static void mlx4_en_set_msglevel(struct net_device *dev, u32 val)
 {
 	((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable = val;
 }

 static void mlx4_en_get_wol(struct net_device *netdev,
 			    struct ethtool_wolinfo *wol)
 {
 	wol->supported = 0;
 	wol->wolopts = 0;

 	return;
 }

 static int mlx4_en_get_sset_count(struct net_device *dev, int sset)
 {
 	struct mlx4_en_priv *priv = netdev_priv(dev);

 	if (sset != ETH_SS_STATS)
 		return -EOPNOTSUPP;

 	return NUM_ALL_STATS + (priv->tx_ring_num + priv->rx_ring_num) * 2;
 }

 static void mlx4_en_get_ethtool_stats(struct net_device *dev,
 		struct ethtool_stats *stats, uint64_t *data)
 {
 	struct mlx4_en_priv *priv = netdev_priv(dev);
 	int index = 0;
 	int i;

 	spin_lock_bh(&priv->stats_lock);

 	mlx4_en_update_lro_stats(priv);

 	for (i = 0; i < NUM_MAIN_STATS; i++)
 		data[index++] = ((unsigned long *) &priv->stats)[i];
 	for (i = 0; i < NUM_PORT_STATS; i++)
 		data[index++] = ((unsigned long *) &priv->port_stats)[i];
 	for (i = 0; i < priv->tx_ring_num; i++) {
 		data[index++] = priv->tx_ring[i].packets;
 		data[index++] = priv->tx_ring[i].bytes;
 	}
 	for (i = 0; i < priv->rx_ring_num; i++) {
 		data[index++] = priv->rx_ring[i].packets;
 		data[index++] = priv->rx_ring[i].bytes;
 	}
 	for (i = 0; i < NUM_PKT_STATS; i++)
 		data[index++] = ((unsigned long *) &priv->pkstats)[i];
 	spin_unlock_bh(&priv->stats_lock);

 }

 static void mlx4_en_get_strings(struct net_device *dev,
 				uint32_t stringset, uint8_t *data)
 {
 	struct mlx4_en_priv *priv = netdev_priv(dev);
 	int index = 0;
 	int i;

 	if (stringset != ETH_SS_STATS)
 		return;

 	/* Add main counters */
 	for (i = 0; i < NUM_MAIN_STATS; i++)
 		strcpy(data + (index++) * ETH_GSTRING_LEN, main_strings[i]);
 	for (i = 0; i < NUM_PORT_STATS; i++)
 		strcpy(data + (index++) * ETH_GSTRING_LEN,
 			main_strings[i + NUM_MAIN_STATS]);
 	for (i = 0; i < priv->tx_ring_num; i++) {
 		sprintf(data + (index++) * ETH_GSTRING_LEN,
 			"tx%d_packets", i);
 		sprintf(data + (index++) * ETH_GSTRING_LEN,
 			"tx%d_bytes", i);
 	}
 	for (i = 0; i < priv->rx_ring_num; i++) {
 		sprintf(data + (index++) * ETH_GSTRING_LEN,
 			"rx%d_packets", i);
 		sprintf(data + (index++) * ETH_GSTRING_LEN,
 			"rx%d_bytes", i);
 	}
 	for (i = 0; i < NUM_PKT_STATS; i++)
 		strcpy(data + (index++) * ETH_GSTRING_LEN,
 			main_strings[i + NUM_MAIN_STATS + NUM_PORT_STATS]);
 }

 static int mlx4_en_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 {
 	cmd->autoneg = AUTONEG_DISABLE;
 	cmd->supported = SUPPORTED_10000baseT_Full;
 	cmd->advertising = SUPPORTED_10000baseT_Full;
 	if (netif_carrier_ok(dev)) {
 		cmd->speed = SPEED_10000;
 		cmd->duplex = DUPLEX_FULL;
 	} else {
 		cmd->speed = -1;
 		cmd->duplex = -1;
 	}
 	return 0;
 }

 static int mlx4_en_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 {
 	if ((cmd->autoneg == AUTONEG_ENABLE) ||
 	    (cmd->speed != SPEED_10000) || (cmd->duplex != DUPLEX_FULL))
 		return -EINVAL;

 	/* Nothing to change */
 	return 0;
 }

 static int mlx4_en_get_coalesce(struct net_device *dev,
 			      struct ethtool_coalesce *coal)
 {
 	struct mlx4_en_priv *priv = netdev_priv(dev);

 	coal->tx_coalesce_usecs = 0;
 	coal->tx_max_coalesced_frames = 0;
 	coal->rx_coalesce_usecs = priv->rx_usecs;
 	coal->rx_max_coalesced_frames = priv->rx_frames;

 	coal->pkt_rate_low = priv->pkt_rate_low;
 	coal->rx_coalesce_usecs_low = priv->rx_usecs_low;
 	coal->pkt_rate_high = priv->pkt_rate_high;
 	coal->rx_coalesce_usecs_high = priv->rx_usecs_high;
 	coal->rate_sample_interval = priv->sample_interval;
 	coal->use_adaptive_rx_coalesce = priv->adaptive_rx_coal;
 	return 0;
 }

 static int mlx4_en_set_coalesce(struct net_device *dev,
 			      struct ethtool_coalesce *coal)
 {
 	struct mlx4_en_priv *priv = netdev_priv(dev);
 	int err, i;

 	priv->rx_frames = (coal->rx_max_coalesced_frames ==
 			   MLX4_EN_AUTO_CONF) ?
 				MLX4_EN_RX_COAL_TARGET /
 				priv->dev->mtu + 1 :
 				coal->rx_max_coalesced_frames;
 	priv->rx_usecs = (coal->rx_coalesce_usecs ==
 			  MLX4_EN_AUTO_CONF) ?
 				MLX4_EN_RX_COAL_TIME :
 				coal->rx_coalesce_usecs;

 	/* Set adaptive coalescing params */
 	priv->pkt_rate_low = coal->pkt_rate_low;
 	priv->rx_usecs_low = coal->rx_coalesce_usecs_low;
 	priv->pkt_rate_high = coal->pkt_rate_high;
 	priv->rx_usecs_high = coal->rx_coalesce_usecs_high;
 	priv->sample_interval = coal->rate_sample_interval;
 	priv->adaptive_rx_coal = coal->use_adaptive_rx_coalesce;
 	priv->last_moder_time = MLX4_EN_AUTO_CONF;
 	if (priv->adaptive_rx_coal)
 		return 0;

 	for (i = 0; i < priv->rx_ring_num; i++) {
 		priv->rx_cq[i].moder_cnt = priv->rx_frames;
 		priv->rx_cq[i].moder_time = priv->rx_usecs;
 		err = mlx4_en_set_cq_moder(priv, &priv->rx_cq[i]);
 		if (err)
 			return err;
 	}
 	return 0;
 }

 static int mlx4_en_set_pauseparam(struct net_device *dev,
 				struct ethtool_pauseparam *pause)
 {
 	struct mlx4_en_priv *priv = netdev_priv(dev);
 	struct mlx4_en_dev *mdev = priv->mdev;
 	int err;

 	priv->prof->tx_pause = pause->tx_pause != 0;
 	priv->prof->rx_pause = pause->rx_pause != 0;
 	err = mlx4_SET_PORT_general(mdev->dev, priv->port,
 				    priv->rx_skb_size + ETH_FCS_LEN,
 				    priv->prof->tx_pause,
 				    priv->prof->tx_ppp,
 				    priv->prof->rx_pause,
 				    priv->prof->rx_ppp);
 	if (err)
 		mlx4_err(mdev, "Failed setting pause params to\n");

 	return err;
 }

 static void mlx4_en_get_pauseparam(struct net_device *dev,
 				 struct ethtool_pauseparam *pause)
 {
 	struct mlx4_en_priv *priv = netdev_priv(dev);

 	pause->tx_pause = priv->prof->tx_pause;
 	pause->rx_pause = priv->prof->rx_pause;
 }

 static int mlx4_en_set_ringparam(struct net_device *dev,
 				 struct ethtool_ringparam *param)
 {
 	struct mlx4_en_priv *priv = netdev_priv(dev);
 	struct mlx4_en_dev *mdev = priv->mdev;
 	u32 rx_size, tx_size;
 	int port_up = 0;
 	int err = 0;

 	if (param->rx_jumbo_pending || param->rx_mini_pending)
 		return -EINVAL;

 	rx_size = roundup_pow_of_two(param->rx_pending);
 	rx_size = max_t(u32, rx_size, MLX4_EN_MIN_RX_SIZE);
 	tx_size = roundup_pow_of_two(param->tx_pending);
 	tx_size = max_t(u32, tx_size, MLX4_EN_MIN_TX_SIZE);

 	if (rx_size == priv->prof->rx_ring_size &&
 	    tx_size == priv->prof->tx_ring_size)
 		return 0;

 	mutex_lock(&mdev->state_lock);
 	if (priv->port_up) {
 		port_up = 1;
 		mlx4_en_stop_port(dev);
 	}

 	mlx4_en_free_resources(priv);

 	priv->prof->tx_ring_size = tx_size;
 	priv->prof->rx_ring_size = rx_size;

 	err = mlx4_en_alloc_resources(priv);
 	if (err) {
 		mlx4_err(mdev, "Failed reallocating port resources\n");
 		goto out;
 	}
 	if (port_up) {
 		err = mlx4_en_start_port(dev);
 		if (err)
 			mlx4_err(mdev, "Failed starting port\n");
 	}

 out:
 	mutex_unlock(&mdev->state_lock);
 	return err;
 }

 static void mlx4_en_get_ringparam(struct net_device *dev,
 				  struct ethtool_ringparam *param)
 {
 	struct mlx4_en_priv *priv = netdev_priv(dev);
 	struct mlx4_en_dev *mdev = priv->mdev;

 	memset(param, 0, sizeof(*param));
 	param->rx_max_pending = mdev->dev->caps.max_rq_sg;
 	param->tx_max_pending = mdev->dev->caps.max_sq_sg;
 	param->rx_pending = mdev->profile.prof[priv->port].rx_ring_size;
 	param->tx_pending = mdev->profile.prof[priv->port].tx_ring_size;
 }

 const struct ethtool_ops mlx4_en_ethtool_ops = {
 	.get_drvinfo = mlx4_en_get_drvinfo,
 	.get_settings = mlx4_en_get_settings,
 	.set_settings = mlx4_en_set_settings,
 #ifdef NETIF_F_TSO
 	.get_tso = mlx4_en_get_tso,
 	.set_tso = mlx4_en_set_tso,
 #endif
 	.get_sg = ethtool_op_get_sg,
 	.set_sg = ethtool_op_set_sg,
 	.get_link = ethtool_op_get_link,
 	.get_rx_csum = mlx4_en_get_rx_csum,
 	.set_rx_csum = mlx4_en_set_rx_csum,
 	.get_tx_csum = ethtool_op_get_tx_csum,
 	.set_tx_csum = ethtool_op_set_tx_ipv6_csum,
 	.get_strings = mlx4_en_get_strings,
 	.get_sset_count = mlx4_en_get_sset_count,
 	.get_ethtool_stats = mlx4_en_get_ethtool_stats,
 	.get_wol = mlx4_en_get_wol,
 	.get_msglevel = mlx4_en_get_msglevel,
 	.set_msglevel = mlx4_en_set_msglevel,
 	.get_coalesce = mlx4_en_get_coalesce,
 	.set_coalesce = mlx4_en_set_coalesce,
 	.get_pauseparam = mlx4_en_get_pauseparam,
 	.set_pauseparam = mlx4_en_set_pauseparam,
 	.get_ringparam = mlx4_en_get_ringparam,
 	.set_ringparam = mlx4_en_set_ringparam,
 	.get_flags = ethtool_op_get_flags,
 	.set_flags = ethtool_op_set_flags,
 };
	/*
	* Copyright (c) 2007 Mellanox Technologies. All rights reserved.
	*
	* This software is available to you under a choice of one of two
	* licenses. You may choose to be licensed under the terms of the GNU
	* General Public License (GPL) Version 2, available from the file
	* COPYING in the main directory of this source tree, or the
	* OpenIB.org BSD license below:
	*
	* Redistribution and use in source and binary forms, with or
	* without modification, are permitted provided that the following
	* conditions are met:
	*
	* - Redistributions of source code must retain the above
	* copyright notice, this list of conditions and the following
	* disclaimer.
	*
	* - Redistributions in binary form must reproduce the above
	* copyright notice, this list of conditions and the following
	* disclaimer in the documentation and/or other materials
	* provided with the distribution.
	*
	* 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/kernel.h>
	#include <linux/ethtool.h>
	#include <linux/netdevice.h>

	#include "mlx4_en.h"
	#include "en_port.h"

	#define MLX4_EN_PARM_INT(X, def_val, desc) \
	static unsigned int X = def_val;\
	module_param(X , uint, 0444); \
	MODULE_PARM_DESC(X, desc);


	/*
	* Device scope module parameters
	*/


	/* Use a XOR rathern than Toeplitz hash function for RSS */
	MLX4_EN_PARM_INT(rss_xor, 0, "Use XOR hash function for RSS");

	/* RSS hash type mask - default to <saddr, daddr, sport, dport> */
	MLX4_EN_PARM_INT(rss_mask, 0xf, "RSS hash type bitmask");

	/* Number of LRO sessions per Rx ring (rounded up to a power of two) */
	MLX4_EN_PARM_INT(num_lro, MLX4_EN_MAX_LRO_DESCRIPTORS,
	"Number of LRO sessions per ring or disabled (0)");

	/* Priority pausing */
	MLX4_EN_PARM_INT(pfctx, 0, "Priority based Flow Control policy on TX[7:0]."
	" Per priority bit mask");
	MLX4_EN_PARM_INT(pfcrx, 0, "Priority based Flow Control policy on RX[7:0]."
	" Per priority bit mask");

	int mlx4_en_get_profile(struct mlx4_en_dev *mdev)
	{
	struct mlx4_en_profile *params = &mdev->profile;
	int i;

	params->rss_xor = (rss_xor != 0);
	params->rss_mask = rss_mask & 0x1f;
	params->num_lro = min_t(int, num_lro , MLX4_EN_MAX_LRO_DESCRIPTORS);
	for (i = 1; i <= MLX4_MAX_PORTS; i++) {
	params->prof[i].rx_pause = 1;
	params->prof[i].rx_ppp = pfcrx;
	params->prof[i].tx_pause = 1;
	params->prof[i].tx_ppp = pfctx;
	params->prof[i].tx_ring_size = MLX4_EN_DEF_TX_RING_SIZE;
	params->prof[i].rx_ring_size = MLX4_EN_DEF_RX_RING_SIZE;
	}
	if (pfcrx \|\| pfctx) {
	params->prof[1].tx_ring_num = MLX4_EN_TX_RING_NUM;
	params->prof[2].tx_ring_num = MLX4_EN_TX_RING_NUM;
	} else {
	params->prof[1].tx_ring_num = 1;
	params->prof[2].tx_ring_num = 1;
	}

	return 0;
	}


	/*
	* Ethtool support
	*/

	static void mlx4_en_update_lro_stats(struct mlx4_en_priv *priv)
	{
	int i;

	priv->port_stats.lro_aggregated = 0;
	priv->port_stats.lro_flushed = 0;
	priv->port_stats.lro_no_desc = 0;

	for (i = 0; i < priv->rx_ring_num; i++) {
	priv->port_stats.lro_aggregated += priv->rx_ring[i].lro.stats.aggregated;
	priv->port_stats.lro_flushed += priv->rx_ring[i].lro.stats.flushed;
	priv->port_stats.lro_no_desc += priv->rx_ring[i].lro.stats.no_desc;
	}
	}

	static void
	mlx4_en_get_drvinfo(struct net_device dev, struct ethtool_drvinfo drvinfo)
	{
	struct mlx4_en_priv *priv = netdev_priv(dev);
	struct mlx4_en_dev *mdev = priv->mdev;

	sprintf(drvinfo->driver, DRV_NAME " (%s)", mdev->dev->board_id);
	strncpy(drvinfo->version, DRV_VERSION " (" DRV_RELDATE ")", 32);
	sprintf(drvinfo->fw_version, "%d.%d.%d",
	(u16) (mdev->dev->caps.fw_ver >> 32),
	(u16) ((mdev->dev->caps.fw_ver >> 16) & 0xffff),
	(u16) (mdev->dev->caps.fw_ver & 0xffff));
	strncpy(drvinfo->bus_info, pci_name(mdev->dev->pdev), 32);
	drvinfo->n_stats = 0;
	drvinfo->regdump_len = 0;
	drvinfo->eedump_len = 0;
	}

	static u32 mlx4_en_get_tso(struct net_device *dev)
	{
	return (dev->features & NETIF_F_TSO) != 0;
	}

	static int mlx4_en_set_tso(struct net_device *dev, u32 data)
	{
	struct mlx4_en_priv *priv = netdev_priv(dev);

	if (data) {
	if (!priv->mdev->LSO_support)
	return -EPERM;
	dev->features \|= (NETIF_F_TSO \| NETIF_F_TSO6);
	} else
	dev->features &= ~(NETIF_F_TSO \| NETIF_F_TSO6);
	return 0;
	}

	static u32 mlx4_en_get_rx_csum(struct net_device *dev)
	{
	struct mlx4_en_priv *priv = netdev_priv(dev);
	return priv->rx_csum;
	}

	static int mlx4_en_set_rx_csum(struct net_device *dev, u32 data)
	{
	struct mlx4_en_priv *priv = netdev_priv(dev);
	priv->rx_csum = (data != 0);
	return 0;
	}

	static const char main_strings[][ETH_GSTRING_LEN] = {
	"rx_packets", "tx_packets", "rx_bytes", "tx_bytes", "rx_errors",
	"tx_errors", "rx_dropped", "tx_dropped", "multicast", "collisions",
	"rx_length_errors", "rx_over_errors", "rx_crc_errors",
	"rx_frame_errors", "rx_fifo_errors", "rx_missed_errors",
	"tx_aborted_errors", "tx_carrier_errors", "tx_fifo_errors",
	"tx_heartbeat_errors", "tx_window_errors",

	/* port statistics */
	"lro_aggregated", "lro_flushed", "lro_no_desc", "tso_packets",
	"queue_stopped", "wake_queue", "tx_timeout", "rx_alloc_failed",
	"rx_csum_good", "rx_csum_none", "tx_chksum_offload",

	/* packet statistics */
	"broadcast", "rx_prio_0", "rx_prio_1", "rx_prio_2", "rx_prio_3",
	"rx_prio_4", "rx_prio_5", "rx_prio_6", "rx_prio_7", "tx_prio_0",
	"tx_prio_1", "tx_prio_2", "tx_prio_3", "tx_prio_4", "tx_prio_5",
	"tx_prio_6", "tx_prio_7",
	};
	#define NUM_MAIN_STATS 21
	#define NUM_ALL_STATS (NUM_MAIN_STATS + NUM_PORT_STATS + NUM_PKT_STATS + NUM_PERF_STATS)

	static u32 mlx4_en_get_msglevel(struct net_device *dev)
	{
	return ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable;
	}

	static void mlx4_en_set_msglevel(struct net_device *dev, u32 val)
	{
	((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable = val;
	}

	static void mlx4_en_get_wol(struct net_device *netdev,
	struct ethtool_wolinfo *wol)
	{
	wol->supported = 0;
	wol->wolopts = 0;

	return;
	}

	static int mlx4_en_get_sset_count(struct net_device *dev, int sset)
	{
	struct mlx4_en_priv *priv = netdev_priv(dev);

	if (sset != ETH_SS_STATS)
	return -EOPNOTSUPP;

	return NUM_ALL_STATS + (priv->tx_ring_num + priv->rx_ring_num) * 2;
	}

	static void mlx4_en_get_ethtool_stats(struct net_device *dev,
	struct ethtool_stats stats, uint64_t data)
	{
	struct mlx4_en_priv *priv = netdev_priv(dev);
	int index = 0;
	int i;

	spin_lock_bh(&priv->stats_lock);

	mlx4_en_update_lro_stats(priv);

	for (i = 0; i < NUM_MAIN_STATS; i++)
	data[index++] = ((unsigned long *) &priv->stats)[i];
	for (i = 0; i < NUM_PORT_STATS; i++)
	data[index++] = ((unsigned long *) &priv->port_stats)[i];
	for (i = 0; i < priv->tx_ring_num; i++) {
	data[index++] = priv->tx_ring[i].packets;
	data[index++] = priv->tx_ring[i].bytes;
	}
	for (i = 0; i < priv->rx_ring_num; i++) {
	data[index++] = priv->rx_ring[i].packets;
	data[index++] = priv->rx_ring[i].bytes;
	}
	for (i = 0; i < NUM_PKT_STATS; i++)
	data[index++] = ((unsigned long *) &priv->pkstats)[i];
	spin_unlock_bh(&priv->stats_lock);

	}

	static void mlx4_en_get_strings(struct net_device *dev,
	uint32_t stringset, uint8_t *data)
	{
	struct mlx4_en_priv *priv = netdev_priv(dev);
	int index = 0;
	int i;

	if (stringset != ETH_SS_STATS)
	return;

	/* Add main counters */
	for (i = 0; i < NUM_MAIN_STATS; i++)
	strcpy(data + (index++) * ETH_GSTRING_LEN, main_strings[i]);
	for (i = 0; i < NUM_PORT_STATS; i++)
	strcpy(data + (index++) * ETH_GSTRING_LEN,
	main_strings[i + NUM_MAIN_STATS]);
	for (i = 0; i < priv->tx_ring_num; i++) {
	sprintf(data + (index++) * ETH_GSTRING_LEN,
	"tx%d_packets", i);
	sprintf(data + (index++) * ETH_GSTRING_LEN,
	"tx%d_bytes", i);
	}
	for (i = 0; i < priv->rx_ring_num; i++) {
	sprintf(data + (index++) * ETH_GSTRING_LEN,
	"rx%d_packets", i);
	sprintf(data + (index++) * ETH_GSTRING_LEN,
	"rx%d_bytes", i);
	}
	for (i = 0; i < NUM_PKT_STATS; i++)
	strcpy(data + (index++) * ETH_GSTRING_LEN,
	main_strings[i + NUM_MAIN_STATS + NUM_PORT_STATS]);
	}

	static int mlx4_en_get_settings(struct net_device dev, struct ethtool_cmd cmd)
	{
	cmd->autoneg = AUTONEG_DISABLE;
	cmd->supported = SUPPORTED_10000baseT_Full;
	cmd->advertising = SUPPORTED_10000baseT_Full;
	if (netif_carrier_ok(dev)) {
	cmd->speed = SPEED_10000;
	cmd->duplex = DUPLEX_FULL;
	} else {
	cmd->speed = -1;
	cmd->duplex = -1;
	}
	return 0;
	}

	static int mlx4_en_set_settings(struct net_device dev, struct ethtool_cmd cmd)
	{
	if ((cmd->autoneg == AUTONEG_ENABLE) \|\|
	(cmd->speed != SPEED_10000) \|\| (cmd->duplex != DUPLEX_FULL))
	return -EINVAL;

	/* Nothing to change */
	return 0;
	}

	static int mlx4_en_get_coalesce(struct net_device *dev,
	struct ethtool_coalesce *coal)
	{
	struct mlx4_en_priv *priv = netdev_priv(dev);

	coal->tx_coalesce_usecs = 0;
	coal->tx_max_coalesced_frames = 0;
	coal->rx_coalesce_usecs = priv->rx_usecs;
	coal->rx_max_coalesced_frames = priv->rx_frames;

	coal->pkt_rate_low = priv->pkt_rate_low;
	coal->rx_coalesce_usecs_low = priv->rx_usecs_low;
	coal->pkt_rate_high = priv->pkt_rate_high;
	coal->rx_coalesce_usecs_high = priv->rx_usecs_high;
	coal->rate_sample_interval = priv->sample_interval;
	coal->use_adaptive_rx_coalesce = priv->adaptive_rx_coal;
	return 0;
	}

	static int mlx4_en_set_coalesce(struct net_device *dev,
	struct ethtool_coalesce *coal)
	{
	struct mlx4_en_priv *priv = netdev_priv(dev);
	int err, i;

	priv->rx_frames = (coal->rx_max_coalesced_frames ==
	MLX4_EN_AUTO_CONF) ?
	MLX4_EN_RX_COAL_TARGET /
	priv->dev->mtu + 1 :
	coal->rx_max_coalesced_frames;
	priv->rx_usecs = (coal->rx_coalesce_usecs ==
	MLX4_EN_AUTO_CONF) ?
	MLX4_EN_RX_COAL_TIME :
	coal->rx_coalesce_usecs;

	/* Set adaptive coalescing params */
	priv->pkt_rate_low = coal->pkt_rate_low;
	priv->rx_usecs_low = coal->rx_coalesce_usecs_low;
	priv->pkt_rate_high = coal->pkt_rate_high;
	priv->rx_usecs_high = coal->rx_coalesce_usecs_high;
	priv->sample_interval = coal->rate_sample_interval;
	priv->adaptive_rx_coal = coal->use_adaptive_rx_coalesce;
	priv->last_moder_time = MLX4_EN_AUTO_CONF;
	if (priv->adaptive_rx_coal)
	return 0;

	for (i = 0; i < priv->rx_ring_num; i++) {
	priv->rx_cq[i].moder_cnt = priv->rx_frames;
	priv->rx_cq[i].moder_time = priv->rx_usecs;
	err = mlx4_en_set_cq_moder(priv, &priv->rx_cq[i]);
	if (err)
	return err;
	}
	return 0;
	}

	static int mlx4_en_set_pauseparam(struct net_device *dev,
	struct ethtool_pauseparam *pause)
	{
	struct mlx4_en_priv *priv = netdev_priv(dev);
	struct mlx4_en_dev *mdev = priv->mdev;
	int err;

	priv->prof->tx_pause = pause->tx_pause != 0;
	priv->prof->rx_pause = pause->rx_pause != 0;
	err = mlx4_SET_PORT_general(mdev->dev, priv->port,
	priv->rx_skb_size + ETH_FCS_LEN,
	priv->prof->tx_pause,
	priv->prof->tx_ppp,
	priv->prof->rx_pause,
	priv->prof->rx_ppp);
	if (err)
	mlx4_err(mdev, "Failed setting pause params to\n");

	return err;
	}

	static void mlx4_en_get_pauseparam(struct net_device *dev,
	struct ethtool_pauseparam *pause)
	{
	struct mlx4_en_priv *priv = netdev_priv(dev);

	pause->tx_pause = priv->prof->tx_pause;
	pause->rx_pause = priv->prof->rx_pause;
	}

	static int mlx4_en_set_ringparam(struct net_device *dev,
	struct ethtool_ringparam *param)
	{
	struct mlx4_en_priv *priv = netdev_priv(dev);
	struct mlx4_en_dev *mdev = priv->mdev;
	u32 rx_size, tx_size;
	int port_up = 0;
	int err = 0;

	if (param->rx_jumbo_pending \|\| param->rx_mini_pending)
	return -EINVAL;

	rx_size = roundup_pow_of_two(param->rx_pending);
	rx_size = max_t(u32, rx_size, MLX4_EN_MIN_RX_SIZE);
	tx_size = roundup_pow_of_two(param->tx_pending);
	tx_size = max_t(u32, tx_size, MLX4_EN_MIN_TX_SIZE);

	if (rx_size == priv->prof->rx_ring_size &&
	tx_size == priv->prof->tx_ring_size)
	return 0;

	mutex_lock(&mdev->state_lock);
	if (priv->port_up) {
	port_up = 1;
	mlx4_en_stop_port(dev);
	}

	mlx4_en_free_resources(priv);

	priv->prof->tx_ring_size = tx_size;
	priv->prof->rx_ring_size = rx_size;

	err = mlx4_en_alloc_resources(priv);
	if (err) {
	mlx4_err(mdev, "Failed reallocating port resources\n");
	goto out;
	}
	if (port_up) {
	err = mlx4_en_start_port(dev);
	if (err)
	mlx4_err(mdev, "Failed starting port\n");
	}

	out:
	mutex_unlock(&mdev->state_lock);
	return err;
	}

	static void mlx4_en_get_ringparam(struct net_device *dev,
	struct ethtool_ringparam *param)
	{
	struct mlx4_en_priv *priv = netdev_priv(dev);
	struct mlx4_en_dev *mdev = priv->mdev;

	memset(param, 0, sizeof(*param));
	param->rx_max_pending = mdev->dev->caps.max_rq_sg;
	param->tx_max_pending = mdev->dev->caps.max_sq_sg;
	param->rx_pending = mdev->profile.prof[priv->port].rx_ring_size;
	param->tx_pending = mdev->profile.prof[priv->port].tx_ring_size;
	}

	const struct ethtool_ops mlx4_en_ethtool_ops = {
	.get_drvinfo = mlx4_en_get_drvinfo,
	.get_settings = mlx4_en_get_settings,
	.set_settings = mlx4_en_set_settings,
	#ifdef NETIF_F_TSO
	.get_tso = mlx4_en_get_tso,
	.set_tso = mlx4_en_set_tso,
	#endif
	.get_sg = ethtool_op_get_sg,
	.set_sg = ethtool_op_set_sg,
	.get_link = ethtool_op_get_link,
	.get_rx_csum = mlx4_en_get_rx_csum,
	.set_rx_csum = mlx4_en_set_rx_csum,
	.get_tx_csum = ethtool_op_get_tx_csum,
	.set_tx_csum = ethtool_op_set_tx_ipv6_csum,
	.get_strings = mlx4_en_get_strings,
	.get_sset_count = mlx4_en_get_sset_count,
	.get_ethtool_stats = mlx4_en_get_ethtool_stats,
	.get_wol = mlx4_en_get_wol,
	.get_msglevel = mlx4_en_get_msglevel,
	.set_msglevel = mlx4_en_set_msglevel,
	.get_coalesce = mlx4_en_get_coalesce,
	.set_coalesce = mlx4_en_set_coalesce,
	.get_pauseparam = mlx4_en_get_pauseparam,
	.set_pauseparam = mlx4_en_set_pauseparam,
	.get_ringparam = mlx4_en_get_ringparam,
	.set_ringparam = mlx4_en_set_ringparam,
	.get_flags = ethtool_op_get_flags,
	.set_flags = ethtool_op_set_flags,
	};