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* Copyright (c) 2007 Mellanox Technologies. All rights reserved.
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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#include <linux/kernel.h>
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#include <linux/ethtool.h>
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#include <linux/netdevice.h>
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mlx4_en_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo)
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struct mlx4_en_priv *priv = netdev_priv(dev);
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struct mlx4_en_dev *mdev = priv->mdev;
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strncpy(drvinfo->driver, DRV_NAME, 32);
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strncpy(drvinfo->version, DRV_VERSION " (" DRV_RELDATE ")", 32);
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sprintf(drvinfo->fw_version, "%d.%d.%d",
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(u16) (mdev->dev->caps.fw_ver >> 32),
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(u16) ((mdev->dev->caps.fw_ver >> 16) & 0xffff),
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(u16) (mdev->dev->caps.fw_ver & 0xffff));
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strncpy(drvinfo->bus_info, pci_name(mdev->dev->pdev), 32);
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drvinfo->regdump_len = 0;
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drvinfo->eedump_len = 0;
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static const char main_strings[][ETH_GSTRING_LEN] = {
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"rx_packets", "tx_packets", "rx_bytes", "tx_bytes", "rx_errors",
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"tx_errors", "rx_dropped", "tx_dropped", "multicast", "collisions",
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"rx_length_errors", "rx_over_errors", "rx_crc_errors",
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"rx_frame_errors", "rx_fifo_errors", "rx_missed_errors",
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"tx_aborted_errors", "tx_carrier_errors", "tx_fifo_errors",
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"tx_heartbeat_errors", "tx_window_errors",
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"queue_stopped", "wake_queue", "tx_timeout", "rx_alloc_failed",
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"rx_csum_good", "rx_csum_none", "tx_chksum_offload",
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/* packet statistics */
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"broadcast", "rx_prio_0", "rx_prio_1", "rx_prio_2", "rx_prio_3",
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"rx_prio_4", "rx_prio_5", "rx_prio_6", "rx_prio_7", "tx_prio_0",
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"tx_prio_1", "tx_prio_2", "tx_prio_3", "tx_prio_4", "tx_prio_5",
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"tx_prio_6", "tx_prio_7",
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#define NUM_MAIN_STATS 21
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#define NUM_ALL_STATS (NUM_MAIN_STATS + NUM_PORT_STATS + NUM_PKT_STATS + NUM_PERF_STATS)
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static const char mlx4_en_test_names[][ETH_GSTRING_LEN]= {
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static u32 mlx4_en_get_msglevel(struct net_device *dev)
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return ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable;
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static void mlx4_en_set_msglevel(struct net_device *dev, u32 val)
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((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable = val;
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static void mlx4_en_get_wol(struct net_device *netdev,
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struct ethtool_wolinfo *wol)
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struct mlx4_en_priv *priv = netdev_priv(netdev);
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if (!priv->mdev->dev->caps.wol) {
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err = mlx4_wol_read(priv->mdev->dev, &config, priv->port);
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en_err(priv, "Failed to get WoL information\n");
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if (config & MLX4_EN_WOL_MAGIC)
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wol->supported = WAKE_MAGIC;
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if (config & MLX4_EN_WOL_ENABLED)
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wol->wolopts = WAKE_MAGIC;
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static int mlx4_en_set_wol(struct net_device *netdev,
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struct ethtool_wolinfo *wol)
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struct mlx4_en_priv *priv = netdev_priv(netdev);
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if (!priv->mdev->dev->caps.wol)
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if (wol->supported & ~WAKE_MAGIC)
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err = mlx4_wol_read(priv->mdev->dev, &config, priv->port);
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en_err(priv, "Failed to get WoL info, unable to modify\n");
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if (wol->wolopts & WAKE_MAGIC) {
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config |= MLX4_EN_WOL_DO_MODIFY | MLX4_EN_WOL_ENABLED |
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config &= ~(MLX4_EN_WOL_ENABLED | MLX4_EN_WOL_MAGIC);
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config |= MLX4_EN_WOL_DO_MODIFY;
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err = mlx4_wol_write(priv->mdev->dev, config, priv->port);
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en_err(priv, "Failed to set WoL information\n");
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static int mlx4_en_get_sset_count(struct net_device *dev, int sset)
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struct mlx4_en_priv *priv = netdev_priv(dev);
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return NUM_ALL_STATS +
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(priv->tx_ring_num + priv->rx_ring_num) * 2;
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return MLX4_EN_NUM_SELF_TEST - !(priv->mdev->dev->caps.loopback_support) * 2;
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static void mlx4_en_get_ethtool_stats(struct net_device *dev,
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struct ethtool_stats *stats, uint64_t *data)
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struct mlx4_en_priv *priv = netdev_priv(dev);
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spin_lock_bh(&priv->stats_lock);
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for (i = 0; i < NUM_MAIN_STATS; i++)
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data[index++] = ((unsigned long *) &priv->stats)[i];
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for (i = 0; i < NUM_PORT_STATS; i++)
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data[index++] = ((unsigned long *) &priv->port_stats)[i];
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for (i = 0; i < priv->tx_ring_num; i++) {
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data[index++] = priv->tx_ring[i].packets;
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data[index++] = priv->tx_ring[i].bytes;
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for (i = 0; i < priv->rx_ring_num; i++) {
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data[index++] = priv->rx_ring[i].packets;
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data[index++] = priv->rx_ring[i].bytes;
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for (i = 0; i < NUM_PKT_STATS; i++)
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data[index++] = ((unsigned long *) &priv->pkstats)[i];
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spin_unlock_bh(&priv->stats_lock);
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static void mlx4_en_self_test(struct net_device *dev,
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struct ethtool_test *etest, u64 *buf)
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mlx4_en_ex_selftest(dev, &etest->flags, buf);
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static void mlx4_en_get_strings(struct net_device *dev,
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uint32_t stringset, uint8_t *data)
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struct mlx4_en_priv *priv = netdev_priv(dev);
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for (i = 0; i < MLX4_EN_NUM_SELF_TEST - 2; i++)
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strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]);
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if (priv->mdev->dev->caps.loopback_support)
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for (; i < MLX4_EN_NUM_SELF_TEST; i++)
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strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]);
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/* Add main counters */
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for (i = 0; i < NUM_MAIN_STATS; i++)
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strcpy(data + (index++) * ETH_GSTRING_LEN, main_strings[i]);
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for (i = 0; i< NUM_PORT_STATS; i++)
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strcpy(data + (index++) * ETH_GSTRING_LEN,
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main_strings[i + NUM_MAIN_STATS]);
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for (i = 0; i < priv->tx_ring_num; i++) {
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sprintf(data + (index++) * ETH_GSTRING_LEN,
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sprintf(data + (index++) * ETH_GSTRING_LEN,
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for (i = 0; i < priv->rx_ring_num; i++) {
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sprintf(data + (index++) * ETH_GSTRING_LEN,
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sprintf(data + (index++) * ETH_GSTRING_LEN,
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for (i = 0; i< NUM_PKT_STATS; i++)
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strcpy(data + (index++) * ETH_GSTRING_LEN,
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main_strings[i + NUM_MAIN_STATS + NUM_PORT_STATS]);
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static int mlx4_en_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
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struct mlx4_en_priv *priv = netdev_priv(dev);
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cmd->autoneg = AUTONEG_DISABLE;
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cmd->supported = SUPPORTED_10000baseT_Full;
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cmd->advertising = ADVERTISED_10000baseT_Full;
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if (mlx4_en_QUERY_PORT(priv->mdev, priv->port))
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trans_type = priv->port_state.transciver;
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if (netif_carrier_ok(dev)) {
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ethtool_cmd_speed_set(cmd, priv->port_state.link_speed);
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cmd->duplex = DUPLEX_FULL;
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ethtool_cmd_speed_set(cmd, -1);
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if (trans_type > 0 && trans_type <= 0xC) {
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cmd->port = PORT_FIBRE;
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cmd->transceiver = XCVR_EXTERNAL;
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cmd->supported |= SUPPORTED_FIBRE;
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cmd->advertising |= ADVERTISED_FIBRE;
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} else if (trans_type == 0x80 || trans_type == 0) {
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cmd->transceiver = XCVR_INTERNAL;
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cmd->supported |= SUPPORTED_TP;
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cmd->advertising |= ADVERTISED_TP;
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cmd->transceiver = -1;
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static int mlx4_en_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
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if ((cmd->autoneg == AUTONEG_ENABLE) ||
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(ethtool_cmd_speed(cmd) != SPEED_10000) ||
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(cmd->duplex != DUPLEX_FULL))
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/* Nothing to change */
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static int mlx4_en_get_coalesce(struct net_device *dev,
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struct ethtool_coalesce *coal)
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struct mlx4_en_priv *priv = netdev_priv(dev);
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coal->tx_coalesce_usecs = 0;
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coal->tx_max_coalesced_frames = 0;
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coal->rx_coalesce_usecs = priv->rx_usecs;
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coal->rx_max_coalesced_frames = priv->rx_frames;
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coal->pkt_rate_low = priv->pkt_rate_low;
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coal->rx_coalesce_usecs_low = priv->rx_usecs_low;
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coal->pkt_rate_high = priv->pkt_rate_high;
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coal->rx_coalesce_usecs_high = priv->rx_usecs_high;
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coal->rate_sample_interval = priv->sample_interval;
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coal->use_adaptive_rx_coalesce = priv->adaptive_rx_coal;
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static int mlx4_en_set_coalesce(struct net_device *dev,
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struct ethtool_coalesce *coal)
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struct mlx4_en_priv *priv = netdev_priv(dev);
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priv->rx_frames = (coal->rx_max_coalesced_frames ==
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MLX4_EN_RX_COAL_TARGET :
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coal->rx_max_coalesced_frames;
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priv->rx_usecs = (coal->rx_coalesce_usecs ==
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MLX4_EN_RX_COAL_TIME :
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coal->rx_coalesce_usecs;
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/* Set adaptive coalescing params */
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priv->pkt_rate_low = coal->pkt_rate_low;
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priv->rx_usecs_low = coal->rx_coalesce_usecs_low;
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priv->pkt_rate_high = coal->pkt_rate_high;
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priv->rx_usecs_high = coal->rx_coalesce_usecs_high;
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priv->sample_interval = coal->rate_sample_interval;
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priv->adaptive_rx_coal = coal->use_adaptive_rx_coalesce;
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priv->last_moder_time = MLX4_EN_AUTO_CONF;
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if (priv->adaptive_rx_coal)
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for (i = 0; i < priv->rx_ring_num; i++) {
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priv->rx_cq[i].moder_cnt = priv->rx_frames;
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priv->rx_cq[i].moder_time = priv->rx_usecs;
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err = mlx4_en_set_cq_moder(priv, &priv->rx_cq[i]);
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static int mlx4_en_set_pauseparam(struct net_device *dev,
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struct ethtool_pauseparam *pause)
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struct mlx4_en_priv *priv = netdev_priv(dev);
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struct mlx4_en_dev *mdev = priv->mdev;
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priv->prof->tx_pause = pause->tx_pause != 0;
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priv->prof->rx_pause = pause->rx_pause != 0;
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err = mlx4_SET_PORT_general(mdev->dev, priv->port,
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priv->rx_skb_size + ETH_FCS_LEN,
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priv->prof->tx_pause,
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priv->prof->rx_pause,
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en_err(priv, "Failed setting pause params\n");
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static void mlx4_en_get_pauseparam(struct net_device *dev,
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struct ethtool_pauseparam *pause)
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struct mlx4_en_priv *priv = netdev_priv(dev);
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pause->tx_pause = priv->prof->tx_pause;
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pause->rx_pause = priv->prof->rx_pause;
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static int mlx4_en_set_ringparam(struct net_device *dev,
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struct ethtool_ringparam *param)
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struct mlx4_en_priv *priv = netdev_priv(dev);
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struct mlx4_en_dev *mdev = priv->mdev;
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u32 rx_size, tx_size;
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if (param->rx_jumbo_pending || param->rx_mini_pending)
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rx_size = roundup_pow_of_two(param->rx_pending);
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rx_size = max_t(u32, rx_size, MLX4_EN_MIN_RX_SIZE);
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rx_size = min_t(u32, rx_size, MLX4_EN_MAX_RX_SIZE);
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tx_size = roundup_pow_of_two(param->tx_pending);
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tx_size = max_t(u32, tx_size, MLX4_EN_MIN_TX_SIZE);
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tx_size = min_t(u32, tx_size, MLX4_EN_MAX_TX_SIZE);
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if (rx_size == (priv->port_up ? priv->rx_ring[0].actual_size :
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priv->rx_ring[0].size) &&
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tx_size == priv->tx_ring[0].size)
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mutex_lock(&mdev->state_lock);
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mlx4_en_stop_port(dev);
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mlx4_en_free_resources(priv, true);
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priv->prof->tx_ring_size = tx_size;
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priv->prof->rx_ring_size = rx_size;
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err = mlx4_en_alloc_resources(priv);
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en_err(priv, "Failed reallocating port resources\n");
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err = mlx4_en_start_port(dev);
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en_err(priv, "Failed starting port\n");
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mutex_unlock(&mdev->state_lock);
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static void mlx4_en_get_ringparam(struct net_device *dev,
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struct ethtool_ringparam *param)
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struct mlx4_en_priv *priv = netdev_priv(dev);
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memset(param, 0, sizeof(*param));
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param->rx_max_pending = MLX4_EN_MAX_RX_SIZE;
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param->tx_max_pending = MLX4_EN_MAX_TX_SIZE;
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param->rx_pending = priv->port_up ?
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priv->rx_ring[0].actual_size : priv->rx_ring[0].size;
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param->tx_pending = priv->tx_ring[0].size;
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const struct ethtool_ops mlx4_en_ethtool_ops = {
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.get_drvinfo = mlx4_en_get_drvinfo,
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.get_settings = mlx4_en_get_settings,
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.set_settings = mlx4_en_set_settings,
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.get_link = ethtool_op_get_link,
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.get_strings = mlx4_en_get_strings,
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.get_sset_count = mlx4_en_get_sset_count,
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.get_ethtool_stats = mlx4_en_get_ethtool_stats,
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.self_test = mlx4_en_self_test,
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.get_wol = mlx4_en_get_wol,
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.set_wol = mlx4_en_set_wol,
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.get_msglevel = mlx4_en_get_msglevel,
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.set_msglevel = mlx4_en_set_msglevel,
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.get_coalesce = mlx4_en_get_coalesce,
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.set_coalesce = mlx4_en_set_coalesce,
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.get_pauseparam = mlx4_en_get_pauseparam,
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.set_pauseparam = mlx4_en_set_pauseparam,
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.get_ringparam = mlx4_en_get_ringparam,
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.set_ringparam = mlx4_en_set_ringparam,