diff options
Diffstat (limited to 'drivers/net/ethernet/wangxun/libwx/wx_lib.c')
| -rw-r--r-- | drivers/net/ethernet/wangxun/libwx/wx_lib.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/net/ethernet/wangxun/libwx/wx_lib.c b/drivers/net/ethernet/wangxun/libwx/wx_lib.c index 18422b940dbe..2a808afeb414 100644 --- a/drivers/net/ethernet/wangxun/libwx/wx_lib.c +++ b/drivers/net/ethernet/wangxun/libwx/wx_lib.c @@ -3000,6 +3000,33 @@ netdev_features_t wx_fix_features(struct net_device *netdev, } EXPORT_SYMBOL(wx_fix_features); +#define WX_MAX_TUNNEL_HDR_LEN 80 +netdev_features_t wx_features_check(struct sk_buff *skb, + struct net_device *netdev, + netdev_features_t features) +{ + struct wx *wx = netdev_priv(netdev); + + if (!skb->encapsulation) + return features; + + if (wx->mac.type == wx_mac_em) + return features & ~NETIF_F_CSUM_MASK; + + if (unlikely(skb_inner_mac_header(skb) - skb_transport_header(skb) > + WX_MAX_TUNNEL_HDR_LEN)) + return features & ~NETIF_F_CSUM_MASK; + + if (skb->inner_protocol_type == ENCAP_TYPE_ETHER && + skb->inner_protocol != htons(ETH_P_IP) && + skb->inner_protocol != htons(ETH_P_IPV6) && + skb->inner_protocol != htons(ETH_P_TEB)) + return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK); + + return features; +} +EXPORT_SYMBOL(wx_features_check); + void wx_set_ring(struct wx *wx, u32 new_tx_count, u32 new_rx_count, struct wx_ring *temp_ring) { |