vlan: Enable software emulation for vlan accleration.

[net-next-2.6.git] / include / linux / netdevice.h

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 880d56565828df5d48b1ba5c98aa3b984be00451..2861565a27d9ba3fc40f43f8c4de2b35d495d303 100644 (file)
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -2248,9 +2248,17 @@ static inline int skb_gso_ok(struct sk_buff *skb, int features)
 
 static inline int netif_needs_gso(struct net_device *dev, struct sk_buff *skb)
 {
-       return skb_is_gso(skb) &&
-              (!skb_gso_ok(skb, dev->features) ||
-               unlikely(skb->ip_summed != CHECKSUM_PARTIAL));
+       if (skb_is_gso(skb)) {
+               int features = dev->features;
+
+               if (skb->protocol == htons(ETH_P_8021Q) || skb->vlan_tci)
+                       features &= dev->vlan_features;
+
+               return (!skb_gso_ok(skb, features) ||
+                       unlikely(skb->ip_summed != CHECKSUM_PARTIAL));
+       }
+
+       return 0;
 }
 
 static inline void netif_set_gso_max_size(struct net_device *dev,