netdev - [PATCH 1/3 net-next] bcm63xx_enet: implement reset autoneg ethtool callback

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Date:	Tue,  4 Jun 2013 22:53:33 +0100
From:	Florian Fainelli <florian@...nwrt.org>
To:	davem@...emloft.net
Cc:	ralf@...ux-mips.org, blogic@...nwrt.org, linux-mips@...ux-mips.org,
	cernekee@...il.com, mbizon@...ebox.fr, jogo@...nwrt.org,
	netdev@...r.kernel.org
Subject: [PATCH 1/3 net-next] bcm63xx_enet: implement reset autoneg ethtool callback

From: Maxime Bizon <mbizon@...ebox.fr>

Implement the rset_nway ethtool callback which uses libphy generic
autonegotiation restart function.

Signed-off-by: Maxime Bizon <mbizon@...ebox.fr>
---
 drivers/net/ethernet/broadcom/bcm63xx_enet.c |   15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/drivers/net/ethernet/broadcom/bcm63xx_enet.c b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
index e46466c..bc1a994 100644
--- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c
+++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
@@ -1328,6 +1328,20 @@ static void bcm_enet_get_ethtool_stats(struct net_device *netdev,
 	mutex_unlock(&priv->mib_update_lock);
 }
 
+static int bcm_enet_nway_reset(struct net_device *dev)
+{
+	struct bcm_enet_priv *priv;
+
+	priv = netdev_priv(dev);
+	if (priv->has_phy) {
+		if (!priv->phydev)
+			return -ENODEV;
+		return genphy_restart_aneg(priv->phydev);
+	}
+
+	return -EOPNOTSUPP;
+}
+
 static int bcm_enet_get_settings(struct net_device *dev,
 				 struct ethtool_cmd *cmd)
 {
@@ -1470,6 +1484,7 @@ static const struct ethtool_ops bcm_enet_ethtool_ops = {
 	.get_strings		= bcm_enet_get_strings,
 	.get_sset_count		= bcm_enet_get_sset_count,
 	.get_ethtool_stats      = bcm_enet_get_ethtool_stats,
+	.nway_reset		= bcm_enet_nway_reset,
 	.get_settings		= bcm_enet_get_settings,
 	.set_settings		= bcm_enet_set_settings,
 	.get_drvinfo		= bcm_enet_get_drvinfo,
-- 
1.7.10.4

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