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net: ethernet: mtk_eth_soc: add support for configuring vlan rx offload

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Keep the vlan rx offload feature in sync across all netdevs belonging to the
device, since the feature is global and can't be turned off per MAC

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Felix Fietkau 2022-11-14 13:42:13 +01:00 committed by Jakub Kicinski
parent 1904870315
commit 08666cbb7d
1 changed files with 21 additions and 6 deletions
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27
drivers/net/ethernet/mediatek/mtk_eth_soc.c
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@ -2724,15 +2724,30 @@ static netdev_features_t mtk_fix_features(struct net_device *dev,
static int mtk_set_features(struct net_device *dev, netdev_features_t features)
{
int err = 0;
struct mtk_mac *mac = netdev_priv(dev);
struct mtk_eth *eth = mac->hw;
netdev_features_t diff = dev->features ^ features;
int i;
if (!((dev->features ^ features) & NETIF_F_LRO))
return 0;
if (!(features & NETIF_F_LRO))
if ((diff & NETIF_F_LRO) && !(features & NETIF_F_LRO))
mtk_hwlro_netdev_disable(dev);
return err;
/* Set RX VLAN offloading */
if (!(diff & NETIF_F_HW_VLAN_CTAG_RX))
return 0;
mtk_w32(eth, !!(features & NETIF_F_HW_VLAN_CTAG_RX),
MTK_CDMP_EG_CTRL);
/* sync features with other MAC */
for (i = 0; i < MTK_MAC_COUNT; i++) {
if (!eth->netdev[i] || eth->netdev[i] == dev)
continue;
eth->netdev[i]->features &= ~NETIF_F_HW_VLAN_CTAG_RX;
eth->netdev[i]->features |= features & NETIF_F_HW_VLAN_CTAG_RX;
}
return 0;
}
/* wait for DMA to finish whatever it is doing before we start using it again */