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Commit 6bb10c2b authored by Yegor Yefremov's avatar Yegor Yefremov Committed by David S. Miller
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cpsw: ethtool: add support for nway reset 



This patch adds support for ethtool's '-r' command. Restarting
N-WAY negotiation can be useful to activate newly changed EEE
settings etc.

Signed-off-by: default avatarYegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 6d5274eb

drivers/net/ethernet/ti/cpsw.c

+13 −0
Original line number Diff line number Diff line
@@ -2261,6 +2261,18 @@ static int cpsw_set_eee(struct net_device *ndev, struct ethtool_eee *edata) 
		return -EOPNOTSUPP;

}



static int cpsw_nway_reset(struct net_device *ndev)

{

	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 genphy_restart_aneg(cpsw->slaves[slave_no].phy);

	else

		return -EOPNOTSUPP;

}



static const struct ethtool_ops cpsw_ethtool_ops = {

	.get_drvinfo	= cpsw_get_drvinfo,

	.get_msglevel	= cpsw_get_msglevel,
@@ -2286,6 +2298,7 @@ static const struct ethtool_ops cpsw_ethtool_ops = { 
	.set_link_ksettings	= cpsw_set_link_ksettings,

	.get_eee	= cpsw_get_eee,

	.set_eee	= cpsw_set_eee,

	.nway_reset	= cpsw_nway_reset,

};



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