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authorHerbert Xu <herbert@gondor.apana.org.au>2009-01-06 10:50:09 -0800
committerDavid S. Miller <davem@davemloft.net>2009-01-06 10:50:09 -0800
commite1c096e251e52773afeffbbcb74d0a072be47ea3 (patch)
treef49f4a34015ba7a4bee16c15942b8f1d47f8c20a /include
parent96e93eab20337d063c70d537bd7bc70d90e04fa3 (diff)
downloadop-kernel-dev-e1c096e251e52773afeffbbcb74d0a072be47ea3.zip
op-kernel-dev-e1c096e251e52773afeffbbcb74d0a072be47ea3.tar.gz
vlan: Add GRO interfaces
This patch adds GRO interfaces for hardware-assisted VLAN reception. With this in place we're now at parity with LRO as far as the interface is concerned. That is, you can now take any LRO driver and convert it over to GRO. As the CB memory clashes with GRO's use of CB, I've removed it entirely by storing dev in skb->dev. This is OK because VLAN gets called first thing in netif_receive_skb and skb->dev is not used in between us calling netif_rx and netif_receive_skb getting called. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r--include/linux/if_vlan.h19
1 files changed, 19 insertions, 0 deletions
diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h
index a5cb0c3..f8ff918 100644
--- a/include/linux/if_vlan.h
+++ b/include/linux/if_vlan.h
@@ -115,6 +115,11 @@ extern u16 vlan_dev_vlan_id(const struct net_device *dev);
extern int __vlan_hwaccel_rx(struct sk_buff *skb, struct vlan_group *grp,
u16 vlan_tci, int polling);
extern int vlan_hwaccel_do_receive(struct sk_buff *skb);
+extern int vlan_gro_receive(struct napi_struct *napi, struct vlan_group *grp,
+ unsigned int vlan_tci, struct sk_buff *skb);
+extern int vlan_gro_frags(struct napi_struct *napi, struct vlan_group *grp,
+ unsigned int vlan_tci,
+ struct napi_gro_fraginfo *info);
#else
static inline struct net_device *vlan_dev_real_dev(const struct net_device *dev)
@@ -140,6 +145,20 @@ static inline int vlan_hwaccel_do_receive(struct sk_buff *skb)
{
return 0;
}
+
+static inline int vlan_gro_receive(struct napi_struct *napi,
+ struct vlan_group *grp,
+ unsigned int vlan_tci, struct sk_buff *skb)
+{
+ return NET_RX_DROP;
+}
+
+static inline int vlan_gro_frags(struct napi_struct *napi,
+ struct vlan_group *grp, unsigned int vlan_tci,
+ struct napi_gro_fraginfo *info)
+{
+ return NET_RX_DROP;
+}
#endif
/**
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