Commit b0cdb168 authored by Madalin Bucur's avatar Madalin Bucur Committed by David S. Miller
Browse files

dpaa_eth: add ethtool functionality



Add support for basic ethtool operations.
Signed-off-by: default avatarMadalin Bucur <madalin.bucur@nxp.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 9ad1a374
......@@ -8,4 +8,4 @@ ccflags-y += -I$(FMAN)
obj-$(CONFIG_FSL_DPAA_ETH) += fsl_dpa.o
fsl_dpa-objs += dpaa_eth.o
fsl_dpa-objs += dpaa_eth.o dpaa_ethtool.o
......@@ -240,6 +240,8 @@ static int dpaa_netdev_init(struct net_device *net_dev,
memcpy(net_dev->perm_addr, mac_addr, net_dev->addr_len);
memcpy(net_dev->dev_addr, mac_addr, net_dev->addr_len);
net_dev->ethtool_ops = &dpaa_ethtool_ops;
net_dev->needed_headroom = priv->tx_headroom;
net_dev->watchdog_timeo = msecs_to_jiffies(tx_timeout);
......
......@@ -141,4 +141,7 @@ struct dpaa_priv {
struct dpaa_buffer_layout buf_layout[2];
u16 rx_headroom;
};
/* from dpaa_ethtool.c */
extern const struct ethtool_ops dpaa_ethtool_ops;
#endif /* __DPAA_H */
/* Copyright 2008-2016 Freescale Semiconductor, Inc.
*
* 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.
* * Neither the name of Freescale Semiconductor nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
*
* ALTERNATIVELY, this software may be distributed under the terms of the
* GNU General Public License ("GPL") as published by the Free Software
* Foundation, either version 2 of that License or (at your option) any
* later version.
*
* THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/string.h>
#include "dpaa_eth.h"
#include "mac.h"
static int dpaa_get_settings(struct net_device *net_dev,
struct ethtool_cmd *et_cmd)
{
int err;
if (!net_dev->phydev) {
netdev_dbg(net_dev, "phy device not initialized\n");
return 0;
}
err = phy_ethtool_gset(net_dev->phydev, et_cmd);
return err;
}
static int dpaa_set_settings(struct net_device *net_dev,
struct ethtool_cmd *et_cmd)
{
int err;
if (!net_dev->phydev) {
netdev_err(net_dev, "phy device not initialized\n");
return -ENODEV;
}
err = phy_ethtool_sset(net_dev->phydev, et_cmd);
if (err < 0)
netdev_err(net_dev, "phy_ethtool_sset() = %d\n", err);
return err;
}
static void dpaa_get_drvinfo(struct net_device *net_dev,
struct ethtool_drvinfo *drvinfo)
{
int len;
strlcpy(drvinfo->driver, KBUILD_MODNAME,
sizeof(drvinfo->driver));
len = snprintf(drvinfo->version, sizeof(drvinfo->version),
"%X", 0);
len = snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
"%X", 0);
if (len >= sizeof(drvinfo->fw_version)) {
/* Truncated output */
netdev_notice(net_dev, "snprintf() = %d\n", len);
}
strlcpy(drvinfo->bus_info, dev_name(net_dev->dev.parent->parent),
sizeof(drvinfo->bus_info));
}
static u32 dpaa_get_msglevel(struct net_device *net_dev)
{
return ((struct dpaa_priv *)netdev_priv(net_dev))->msg_enable;
}
static void dpaa_set_msglevel(struct net_device *net_dev,
u32 msg_enable)
{
((struct dpaa_priv *)netdev_priv(net_dev))->msg_enable = msg_enable;
}
static int dpaa_nway_reset(struct net_device *net_dev)
{
int err;
if (!net_dev->phydev) {
netdev_err(net_dev, "phy device not initialized\n");
return -ENODEV;
}
err = 0;
if (net_dev->phydev->autoneg) {
err = phy_start_aneg(net_dev->phydev);
if (err < 0)
netdev_err(net_dev, "phy_start_aneg() = %d\n",
err);
}
return err;
}
static void dpaa_get_pauseparam(struct net_device *net_dev,
struct ethtool_pauseparam *epause)
{
struct mac_device *mac_dev;
struct dpaa_priv *priv;
priv = netdev_priv(net_dev);
mac_dev = priv->mac_dev;
if (!net_dev->phydev) {
netdev_err(net_dev, "phy device not initialized\n");
return;
}
epause->autoneg = mac_dev->autoneg_pause;
epause->rx_pause = mac_dev->rx_pause_active;
epause->tx_pause = mac_dev->tx_pause_active;
}
static int dpaa_set_pauseparam(struct net_device *net_dev,
struct ethtool_pauseparam *epause)
{
struct mac_device *mac_dev;
struct phy_device *phydev;
bool rx_pause, tx_pause;
struct dpaa_priv *priv;
u32 newadv, oldadv;
int err;
priv = netdev_priv(net_dev);
mac_dev = priv->mac_dev;
phydev = net_dev->phydev;
if (!phydev) {
netdev_err(net_dev, "phy device not initialized\n");
return -ENODEV;
}
if (!(phydev->supported & SUPPORTED_Pause) ||
(!(phydev->supported & SUPPORTED_Asym_Pause) &&
(epause->rx_pause != epause->tx_pause)))
return -EINVAL;
/* The MAC should know how to handle PAUSE frame autonegotiation before
* adjust_link is triggered by a forced renegotiation of sym/asym PAUSE
* settings.
*/
mac_dev->autoneg_pause = !!epause->autoneg;
mac_dev->rx_pause_req = !!epause->rx_pause;
mac_dev->tx_pause_req = !!epause->tx_pause;
/* Determine the sym/asym advertised PAUSE capabilities from the desired
* rx/tx pause settings.
*/
newadv = 0;
if (epause->rx_pause)
newadv = ADVERTISED_Pause | ADVERTISED_Asym_Pause;
if (epause->tx_pause)
newadv |= ADVERTISED_Asym_Pause;
oldadv = phydev->advertising &
(ADVERTISED_Pause | ADVERTISED_Asym_Pause);
/* If there are differences between the old and the new advertised
* values, restart PHY autonegotiation and advertise the new values.
*/
if (oldadv != newadv) {
phydev->advertising &= ~(ADVERTISED_Pause
| ADVERTISED_Asym_Pause);
phydev->advertising |= newadv;
if (phydev->autoneg) {
err = phy_start_aneg(phydev);
if (err < 0)
netdev_err(net_dev, "phy_start_aneg() = %d\n",
err);
}
}
fman_get_pause_cfg(mac_dev, &rx_pause, &tx_pause);
err = fman_set_mac_active_pause(mac_dev, rx_pause, tx_pause);
if (err < 0)
netdev_err(net_dev, "set_mac_active_pause() = %d\n", err);
return err;
}
const struct ethtool_ops dpaa_ethtool_ops = {
.get_settings = dpaa_get_settings,
.set_settings = dpaa_set_settings,
.get_drvinfo = dpaa_get_drvinfo,
.get_msglevel = dpaa_get_msglevel,
.set_msglevel = dpaa_set_msglevel,
.nway_reset = dpaa_nway_reset,
.get_pauseparam = dpaa_get_pauseparam,
.set_pauseparam = dpaa_set_pauseparam,
.get_link = ethtool_op_get_link,
};
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