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Commit 6b78f16e authored by Eric Dumazet's avatar Eric Dumazet Committed by David S. Miller
Browse files

gre: add GSO support 



Add GSO support to GRE tunnels.

Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
Cc: Maciej Żenczykowski <maze@google.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 2c60db03

net/ipv4/ip_gre.c

+12 −0
Original line number Diff line number Diff line
@@ -745,6 +745,10 @@ static netdev_tx_t ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev 
	__be32 dst;

	int    mtu;



	if (skb->ip_summed == CHECKSUM_PARTIAL &&

	    skb_checksum_help(skb))

		goto tx_error;



	if (dev->type == ARPHRD_ETHER)

		IPCB(skb)->flags = 0;
@@ -1296,6 +1300,11 @@ static void ipgre_dev_free(struct net_device *dev) 
	free_netdev(dev);

}



#define GRE_FEATURES (NETIF_F_SG |		\

		      NETIF_F_FRAGLIST |	\

		      NETIF_F_HIGHDMA |		\

		      NETIF_F_HW_CSUM)



static void ipgre_tunnel_setup(struct net_device *dev)

{

	dev->netdev_ops		= &ipgre_netdev_ops;
@@ -1309,6 +1318,9 @@ static void ipgre_tunnel_setup(struct net_device *dev) 
	dev->addr_len		= 4;

	dev->features		|= NETIF_F_NETNS_LOCAL;

	dev->priv_flags		&= ~IFF_XMIT_DST_RELEASE;



	dev->features		|= GRE_FEATURES;

	dev->hw_features	|= GRE_FEATURES;

}



static int ipgre_tunnel_init(struct net_device *dev)