From 4cea386c796896b75a66fa705644a4cf3fba1ac7 Mon Sep 17 00:00:00 2001 From: Russell King Date: Thu, 1 Oct 2015 20:27:19 +0100 Subject: 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(+) diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c index 91d1a3da8648..5f416314a76c 100644 --- a/drivers/net/phy/phylink.c +++ b/drivers/net/phy/phylink.c @@ -783,6 +783,20 @@ int phylink_ethtool_ksettings_set(struct phylink *pl, } EXPORT_SYMBOL_GPL(phylink_ethtool_ksettings_set); +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. * diff --git a/include/linux/phylink.h b/include/linux/phylink.h index 2c3facb91a65..0490e20ece7a 100644 --- a/include/linux/phylink.h +++ b/include/linux/phylink.h @@ -113,6 +113,7 @@ int phylink_ethtool_ksettings_get(struct phylink *, struct ethtool_link_ksettings *); int phylink_ethtool_ksettings_set(struct phylink *, const struct ethtool_link_ksettings *); +int phylink_ethtool_nway_reset(struct phylink *); int phylink_mii_ioctl(struct phylink *, struct ifreq *, int); int phylink_set_link(struct phylink *pl, unsigned int mode, u8 port, -- cgit