dpaa_eth: add ethtool functionality
Add support for basic ethtool operations. Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Madalin Bucur
David S. Miller
parent
9ad1a37493
commit
b0cdb1682b
@ -8,4 +8,4 @@ ccflags-y += -I$(FMAN)
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obj-$(CONFIG_FSL_DPAA_ETH) += fsl_dpa.o
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fsl_dpa-objs += dpaa_eth.o
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fsl_dpa-objs += dpaa_eth.o dpaa_ethtool.o
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@ -240,6 +240,8 @@ static int dpaa_netdev_init(struct net_device *net_dev,
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memcpy(net_dev->perm_addr, mac_addr, net_dev->addr_len);
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memcpy(net_dev->dev_addr, mac_addr, net_dev->addr_len);
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net_dev->ethtool_ops = &dpaa_ethtool_ops;
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net_dev->needed_headroom = priv->tx_headroom;
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net_dev->watchdog_timeo = msecs_to_jiffies(tx_timeout);
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@ -141,4 +141,7 @@ struct dpaa_priv {
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struct dpaa_buffer_layout buf_layout[2];
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u16 rx_headroom;
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};
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/* from dpaa_ethtool.c */
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extern const struct ethtool_ops dpaa_ethtool_ops;
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#endif /* __DPAA_H */
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218
drivers/net/ethernet/freescale/dpaa/dpaa_ethtool.c
Normal file
218
drivers/net/ethernet/freescale/dpaa/dpaa_ethtool.c
Normal file
@ -0,0 +1,218 @@
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/* Copyright 2008-2016 Freescale Semiconductor, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of Freescale Semiconductor nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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*
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* ALTERNATIVELY, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") as published by the Free Software
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* Foundation, either version 2 of that License or (at your option) any
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* later version.
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*
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* THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include <linux/string.h>
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#include "dpaa_eth.h"
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#include "mac.h"
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static int dpaa_get_settings(struct net_device *net_dev,
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struct ethtool_cmd *et_cmd)
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{
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int err;
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if (!net_dev->phydev) {
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netdev_dbg(net_dev, "phy device not initialized\n");
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return 0;
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}
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err = phy_ethtool_gset(net_dev->phydev, et_cmd);
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return err;
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}
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static int dpaa_set_settings(struct net_device *net_dev,
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struct ethtool_cmd *et_cmd)
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{
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int err;
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if (!net_dev->phydev) {
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netdev_err(net_dev, "phy device not initialized\n");
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return -ENODEV;
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}
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err = phy_ethtool_sset(net_dev->phydev, et_cmd);
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if (err < 0)
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netdev_err(net_dev, "phy_ethtool_sset() = %d\n", err);
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return err;
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}
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static void dpaa_get_drvinfo(struct net_device *net_dev,
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struct ethtool_drvinfo *drvinfo)
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{
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int len;
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strlcpy(drvinfo->driver, KBUILD_MODNAME,
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sizeof(drvinfo->driver));
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len = snprintf(drvinfo->version, sizeof(drvinfo->version),
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"%X", 0);
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len = snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
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"%X", 0);
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if (len >= sizeof(drvinfo->fw_version)) {
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/* Truncated output */
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netdev_notice(net_dev, "snprintf() = %d\n", len);
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}
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strlcpy(drvinfo->bus_info, dev_name(net_dev->dev.parent->parent),
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sizeof(drvinfo->bus_info));
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}
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static u32 dpaa_get_msglevel(struct net_device *net_dev)
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{
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return ((struct dpaa_priv *)netdev_priv(net_dev))->msg_enable;
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}
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static void dpaa_set_msglevel(struct net_device *net_dev,
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u32 msg_enable)
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{
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((struct dpaa_priv *)netdev_priv(net_dev))->msg_enable = msg_enable;
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}
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static int dpaa_nway_reset(struct net_device *net_dev)
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{
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int err;
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if (!net_dev->phydev) {
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netdev_err(net_dev, "phy device not initialized\n");
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return -ENODEV;
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}
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err = 0;
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if (net_dev->phydev->autoneg) {
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err = phy_start_aneg(net_dev->phydev);
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if (err < 0)
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netdev_err(net_dev, "phy_start_aneg() = %d\n",
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err);
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}
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return err;
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}
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static void dpaa_get_pauseparam(struct net_device *net_dev,
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struct ethtool_pauseparam *epause)
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{
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struct mac_device *mac_dev;
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struct dpaa_priv *priv;
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priv = netdev_priv(net_dev);
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mac_dev = priv->mac_dev;
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if (!net_dev->phydev) {
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netdev_err(net_dev, "phy device not initialized\n");
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return;
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}
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epause->autoneg = mac_dev->autoneg_pause;
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epause->rx_pause = mac_dev->rx_pause_active;
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epause->tx_pause = mac_dev->tx_pause_active;
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}
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static int dpaa_set_pauseparam(struct net_device *net_dev,
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struct ethtool_pauseparam *epause)
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{
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struct mac_device *mac_dev;
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struct phy_device *phydev;
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bool rx_pause, tx_pause;
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struct dpaa_priv *priv;
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u32 newadv, oldadv;
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int err;
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priv = netdev_priv(net_dev);
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mac_dev = priv->mac_dev;
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phydev = net_dev->phydev;
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if (!phydev) {
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netdev_err(net_dev, "phy device not initialized\n");
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return -ENODEV;
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}
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if (!(phydev->supported & SUPPORTED_Pause) ||
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(!(phydev->supported & SUPPORTED_Asym_Pause) &&
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(epause->rx_pause != epause->tx_pause)))
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return -EINVAL;
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/* The MAC should know how to handle PAUSE frame autonegotiation before
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* adjust_link is triggered by a forced renegotiation of sym/asym PAUSE
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* settings.
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*/
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mac_dev->autoneg_pause = !!epause->autoneg;
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mac_dev->rx_pause_req = !!epause->rx_pause;
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mac_dev->tx_pause_req = !!epause->tx_pause;
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/* Determine the sym/asym advertised PAUSE capabilities from the desired
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* rx/tx pause settings.
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*/
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newadv = 0;
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if (epause->rx_pause)
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newadv = ADVERTISED_Pause | ADVERTISED_Asym_Pause;
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if (epause->tx_pause)
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newadv |= ADVERTISED_Asym_Pause;
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oldadv = phydev->advertising &
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(ADVERTISED_Pause | ADVERTISED_Asym_Pause);
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/* If there are differences between the old and the new advertised
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* values, restart PHY autonegotiation and advertise the new values.
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*/
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if (oldadv != newadv) {
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phydev->advertising &= ~(ADVERTISED_Pause
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| ADVERTISED_Asym_Pause);
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phydev->advertising |= newadv;
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if (phydev->autoneg) {
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err = phy_start_aneg(phydev);
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if (err < 0)
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netdev_err(net_dev, "phy_start_aneg() = %d\n",
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err);
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}
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}
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fman_get_pause_cfg(mac_dev, &rx_pause, &tx_pause);
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err = fman_set_mac_active_pause(mac_dev, rx_pause, tx_pause);
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if (err < 0)
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netdev_err(net_dev, "set_mac_active_pause() = %d\n", err);
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return err;
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}
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const struct ethtool_ops dpaa_ethtool_ops = {
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.get_settings = dpaa_get_settings,
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.set_settings = dpaa_set_settings,
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.get_drvinfo = dpaa_get_drvinfo,
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.get_msglevel = dpaa_get_msglevel,
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.set_msglevel = dpaa_set_msglevel,
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.nway_reset = dpaa_nway_reset,
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.get_pauseparam = dpaa_get_pauseparam,
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.set_pauseparam = dpaa_set_pauseparam,
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.get_link = ethtool_op_get_link,
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};
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