• Pravin B Shelar's avatar
    v4 GRE: Add TCP segmentation offload for GRE · 68c33163
    Pravin B Shelar authored
    
    
    Following patch adds GRE protocol offload handler so that
    skb_gso_segment() can segment GRE packets.
    SKB GSO CB is added to keep track of total header length so that
    skb_segment can push entire header. e.g. in case of GRE, skb_segment
    need to push inner and outer headers to every segment.
    New NETIF_F_GRE_GSO feature is added for devices which support HW
    GRE TSO offload. Currently none of devices support it therefore GRE GSO
    always fall backs to software GSO.
    
    [ Compute pkt_len before ip_local_out() invocation. -DaveM ]
    Signed-off-by: default avatarPravin B Shelar <pshelar@nicira.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    68c33163
netdev_features.h 5.85 KB