From: Yegor Yefremov <yegorslists@xxxxxxxxxxxxxx>
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: Yegor Yefremov <yegorslists@xxxxxxxxxxxxxx>
---
drivers/net/ethernet/ti/cpsw.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index df87bff..caec6ac 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -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,
--
2.1.4
--
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