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authorRussell King <rmk+kernel@armlinux.org.uk>2017-12-01 10:24:42 +0000
committerDavid S. Miller <davem@davemloft.net>2017-12-05 11:16:18 -0500
commit85b43945cf758704f5d97767ec70a317c6c8d8eb (patch)
tree26fedad58b0d6025243cd4dd62f692c1c47320ea /drivers/net/phy/phylink.c
parentphylink: remove phylink_init_eee() (diff)
downloadlinux-dev-85b43945cf758704f5d97767ec70a317c6c8d8eb.tar.xz
linux-dev-85b43945cf758704f5d97767ec70a317c6c8d8eb.zip
phylink: restart 802.3z negotiation when starting net device
Restart 802.3z negotiation when the net device is brought up to ensure that the link partner has our current link modes. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/phy/phylink.c')
-rw-r--r--drivers/net/phy/phylink.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c
index 560486463930..40563c8d7352 100644
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -751,6 +751,12 @@ void phylink_start(struct phylink *pl)
phylink_resolve_flow(pl, &pl->link_config);
phylink_mac_config(pl, &pl->link_config);
+ /* Restart autonegotiation if using 802.3z to ensure that the link
+ * parameters are properly negotiated. This is necessary for DSA
+ * switches using 802.3z negotiation to ensure they see our modes.
+ */
+ phylink_mac_an_restart(pl);
+
clear_bit(PHYLINK_DISABLE_STOPPED, &pl->phylink_disable_state);
phylink_run_resolve(pl);