[PATCH v3 3/4] vxlan: capture inner headers during encapsulation
From: Joseph Gasparakis <hidden>
Date: 2012-12-07 01:48:53
Also in:
lkml
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Allow VXLAN to make use of Tx checksum offloading and Tx scatter-gather. The advantage to these two changes is that it also allows the VXLAN to make use of GSO. Signed-off-by: Joseph Gasparakis <redacted> Signed-off-by: Peter P Waskiewicz Jr <redacted> Signed-off-by: Alexander Duyck <redacted> --- drivers/net/vxlan.c | 10 +++++++++- 1 files changed, 9 insertions(+), 1 deletions(-)
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index ce77b8b..88b31f2 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c@@ -876,6 +876,11 @@ static netdev_tx_t vxlan_xmit(struct sk_buff *skb, struct net_device *dev) goto drop; } + if (!skb->encapsulation) { + skb_reset_inner_headers(skb); + skb->encapsulation = 1; + } + /* Need space for new headers (invalidates iph ptr) */ if (skb_cow_head(skb, VXLAN_HEADROOM)) goto drop;
@@ -947,7 +952,8 @@ static netdev_tx_t vxlan_xmit(struct sk_buff *skb, struct net_device *dev) vxlan_set_owner(dev, skb); /* See iptunnel_xmit() */ - skb->ip_summed = CHECKSUM_NONE; + if (skb->ip_summed != CHECKSUM_PARTIAL) + skb->ip_summed = CHECKSUM_NONE; ip_select_ident(iph, &rt->dst, NULL); err = ip_local_out(skb);
@@ -1168,6 +1174,8 @@ static void vxlan_setup(struct net_device *dev) dev->tx_queue_len = 0; dev->features |= NETIF_F_LLTX; dev->features |= NETIF_F_NETNS_LOCAL; + dev->features |= NETIF_F_SG | NETIF_F_HW_CSUM; + dev->hw_features |= NETIF_F_SG | NETIF_F_HW_CSUM; dev->priv_flags &= ~IFF_XMIT_DST_RELEASE; spin_lock_init(&vxlan->hash_lock);
--
1.7.6.4