openwrtv3/target/linux/brcm63xx/patches-3.9/045-bcm63xx_enet-implement-reset-autoneg-ethtool-callbac.patch

From a15c33450df64f183c8ab5de8ef113091081679d Mon Sep 17 00:00:00 2001
From: Maxime Bizon <mbizon@freebox.fr>
Date: Tue, 4 Jun 2013 20:53:33 +0000
Subject: [PATCH 1/3] bcm63xx_enet: implement reset autoneg ethtool callback

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

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

--- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c
+++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
@@ -1330,6 +1330,20 @@ static void bcm_enet_get_ethtool_stats(s
 	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)
 {
@@ -1472,6 +1486,7 @@ static const struct ethtool_ops bcm_enet
 	.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,