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Commit a0909949 authored by Yegor Yefremov's avatar Yegor Yefremov Committed by David S. Miller
Browse files

cpsw: ethtool: add support for getting/setting EEE registers 



Add the ability to query and set Energy Efficient Ethernet parameters
via ethtool for applicable devices.

This patch doesn't activate full EEE support in cpsw driver, but it
enables reading and writing EEE advertising settings. This way one
can disable advertising EEE for certain speeds.

Signed-off-by: default avatarYegor Yefremov <yegorslists@googlemail.com>
Acked-by: default avatarRami Rosen <roszenrami@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 93ba2222

drivers/net/ethernet/ti/cpsw.c

+26 −0
Original line number Diff line number Diff line
@@ -2237,6 +2237,30 @@ static int cpsw_set_channels(struct net_device *ndev, 
	return ret;

}



static int cpsw_get_eee(struct net_device *ndev, struct ethtool_eee *edata)

{

	struct cpsw_priv *priv = netdev_priv(ndev);

	struct cpsw_common *cpsw = priv->cpsw;

	int slave_no = cpsw_slave_index(cpsw, priv);



	if (cpsw->slaves[slave_no].phy)

		return phy_ethtool_get_eee(cpsw->slaves[slave_no].phy, edata);

	else

		return -EOPNOTSUPP;

}



static int cpsw_set_eee(struct net_device *ndev, struct ethtool_eee *edata)

{

	struct cpsw_priv *priv = netdev_priv(ndev);

	struct cpsw_common *cpsw = priv->cpsw;

	int slave_no = cpsw_slave_index(cpsw, priv);



	if (cpsw->slaves[slave_no].phy)

		return phy_ethtool_set_eee(cpsw->slaves[slave_no].phy, edata);

	else

		return -EOPNOTSUPP;

}



static const struct ethtool_ops cpsw_ethtool_ops = {

	.get_drvinfo	= cpsw_get_drvinfo,

	.get_msglevel	= cpsw_get_msglevel,
@@ -2260,6 +2284,8 @@ static const struct ethtool_ops cpsw_ethtool_ops = { 
	.set_channels	= cpsw_set_channels,

	.get_link_ksettings	= cpsw_get_link_ksettings,

	.set_link_ksettings	= cpsw_set_link_ksettings,

	.get_eee	= cpsw_get_eee,

	.set_eee	= cpsw_set_eee,

};



static void cpsw_slave_init(struct cpsw_slave *slave, struct cpsw_common *cpsw,