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+ker...@armlinux.org.uk>
---
drivers/net/phy/phylink.c | 6 ++++++
1 file changed, 6 insertions(+)
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);
--
2.7.4
