Add ethtool nway_reset support to phylink, to allow userspace to
request a re-negotiation of the link.
Signed-off-by: Russell King <rmk+ker...@arm.linux.org.uk>
---
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 7d56e5895087..908235fb16c1 100644
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -659,6 +659,20 @@ int phylink_ethtool_set_settings(struct phylink *pl,
struct ethtool_cmd *cmd)
}
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);
+ pl->ops->mac_an_restart(pl->netdev, pl->link_an_mode);
+ 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 c7a665a538c1..ad3c85508d19 100644
--- 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);
--
2.1.0
--
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