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net: mvpp2: fix detection of 10G SFP modules

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The mvpp2_phylink_validate() relies on the interface field of
phylink_link_state to determine valid link modes. However, when called
from phylink_sfp_module_insert() this field in not initialized. The
default switch case then excludes 10G link modes. This allows 10G SFP
modules that are detected correctly to be configured at max rate of
2.5G.

Catch the uninitialized PHY mode case, and allow 10G rates.

Fixes: d97c9f4ab0 ("net: mvpp2: 1000baseX support")
Cc: Maxime Chevallier <[email protected]>
Cc: Antoine Tenart <[email protected]>
Acked-by: Russell King <[email protected]>
Signed-off-by: Baruch Siach <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Baruch Siach authored and David S. Miller committed 2018-12-04 21:17:15 -08:00
1 parent ecb239d96d
commit 01b3fd5ac9
1 file changed
+1
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drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
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@@ -4384,6 +4384,7 @@ static void mvpp2_phylink_validate(struct net_device *dev,
switch (state->interface) {
case PHY_INTERFACE_MODE_10GKR:
case PHY_INTERFACE_MODE_NA:
phylink_set(mask, 10000baseCR_Full);
phylink_set(mask, 10000baseSR_Full);
phylink_set(mask, 10000baseLR_Full);