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net: mvpp2: fix phylink handling of invalid PHY modes 

The .validate phylink callback should empty the supported bitmap when
the interface mode is invalid.

Cc: Maxime Chevallier <maxime.chevallier@bootlin.com>
Cc: Antoine Tenart <antoine.tenart@bootlin.com>
Reported-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
Baruch Siach 2018-12-04 16:03:53 +02:00 committed by David S. Miller
parent 01b3fd5ac9
commit 0fb628f0f2
1 changed files with 32 additions and 1 deletions
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33
drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
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@ -4375,8 +4375,27 @@ static void mvpp2_phylink_validate(struct net_device *dev,
unsigned long *supported,
struct phylink_link_state *state)
{
struct mvpp2_port *port = netdev_priv(dev);
__ETHTOOL_DECLARE_LINK_MODE_MASK(mask) = { 0, };
/* Invalid combinations */
switch (state->interface) {
case PHY_INTERFACE_MODE_10GKR:
case PHY_INTERFACE_MODE_XAUI:
if (port->gop_id != 0)
goto empty_set;
break;
case PHY_INTERFACE_MODE_RGMII:
case PHY_INTERFACE_MODE_RGMII_ID:
case PHY_INTERFACE_MODE_RGMII_RXID:
case PHY_INTERFACE_MODE_RGMII_TXID:
if (port->gop_id == 0)
goto empty_set;
break;
default:
break;
}
phylink_set(mask, Autoneg);
phylink_set_port_modes(mask);
phylink_set(mask, Pause);
@ -4384,6 +4403,7 @@ static void mvpp2_phylink_validate(struct net_device *dev,
switch (state->interface) {
case PHY_INTERFACE_MODE_10GKR:
case PHY_INTERFACE_MODE_XAUI:
case PHY_INTERFACE_MODE_NA:
phylink_set(mask, 10000baseCR_Full);
phylink_set(mask, 10000baseSR_Full);
@ -4392,7 +4412,11 @@ static void mvpp2_phylink_validate(struct net_device *dev,
phylink_set(mask, 10000baseER_Full);
phylink_set(mask, 10000baseKR_Full);
/* Fall-through */
default:
case PHY_INTERFACE_MODE_RGMII:
case PHY_INTERFACE_MODE_RGMII_ID:
case PHY_INTERFACE_MODE_RGMII_RXID:
case PHY_INTERFACE_MODE_RGMII_TXID:
case PHY_INTERFACE_MODE_SGMII:
phylink_set(mask, 10baseT_Half);
phylink_set(mask, 10baseT_Full);
phylink_set(mask, 100baseT_Half);
@ -4404,11 +4428,18 @@ static void mvpp2_phylink_validate(struct net_device *dev,
phylink_set(mask, 1000baseT_Full);
phylink_set(mask, 1000baseX_Full);
phylink_set(mask, 2500baseX_Full);
break;
default:
goto empty_set;
}
bitmap_and(supported, supported, mask, __ETHTOOL_LINK_MODE_MASK_NBITS);
bitmap_and(state->advertising, state->advertising, mask,
__ETHTOOL_LINK_MODE_MASK_NBITS);
return;
empty_set:
bitmap_zero(supported, __ETHTOOL_LINK_MODE_MASK_NBITS);
}
static void mvpp22_xlg_link_state(struct mvpp2_port *port,