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