From d6bd25b692378ec17bdb1023d398c03c45829947 Mon Sep 17 00:00:00 2001 From: Russell King Date: Thu, 1 Oct 2015 20:27:19 +0100 Subject: [PATCH 724/744] phylink: add ethtool nway_reset support Add ethtool nway_reset support to phylink, to allow userspace to request a re-negotiation of the link. Reviewed-by: Florian Fainelli Signed-off-by: Russell King --- drivers/net/phy/phylink.c | 14 ++++++++++++++ include/linux/phylink.h | 1 + 2 files changed, 15 insertions(+) --- a/drivers/net/phy/phylink.c +++ b/drivers/net/phy/phylink.c @@ -687,6 +687,20 @@ int phylink_ethtool_set_settings(struct } EXPORT_SYMBOL_GPL(phylink_ethtool_set_settings); +int phylink_ethtool_nway_reset(struct phylink *pl) +{ + int ret = 0; + + mutex_lock(&pl->config_mutex); + if (pl->phydev) + ret = genphy_restart_aneg(pl->phydev); + phylink_mac_an_restart(pl); + mutex_unlock(&pl->config_mutex); + + return ret; +} +EXPORT_SYMBOL_GPL(phylink_ethtool_nway_reset); + /* This emulates MII registers for a fixed-mode phy operating as per the * passed in state. "aneg" defines if we report negotiation is possible. * --- a/include/linux/phylink.h +++ b/include/linux/phylink.h @@ -65,6 +65,7 @@ void phylink_stop(struct phylink *); int phylink_ethtool_get_settings(struct phylink *, struct ethtool_cmd *); int phylink_ethtool_set_settings(struct phylink *, struct ethtool_cmd *); +int phylink_ethtool_nway_reset(struct phylink *); int phylink_mii_ioctl(struct phylink *, struct ifreq *, int); void phylink_set_link_port(struct phylink *pl, u32 support, u8 port);