From: Pravin Shelar <[email protected]>
Signed-off-by: Pravin B Shelar <[email protected]>
---
drivers/net/vxlan.c | 22 ++++++++++++++++++++++
1 files changed, 22 insertions(+), 0 deletions(-)
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 1977da5..8effb54 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -779,6 +779,21 @@ static netdev_tx_t vxlan_xmit(struct sk_buff *skb, struct
net_device *dev)
bool did_rsc = false;
const struct vxlan_fdb *f;
+ if (skb->ip_summed == CHECKSUM_PARTIAL) {
+ /* Pages aren't locked and could change at any time.
+ * If this happens after we compute the checksum, the
+ * checksum will be wrong. We linearize now to avoid
+ * this problem.
+ */
+ err = __skb_linearize(skb);
+ if (unlikely(err))
+ goto drop;
+
+ err = skb_checksum_help(skb);
+ if (unlikely(err))
+ goto drop;
+ }
+
skb_reset_mac_header(skb);
eth = eth_hdr(skb);
@@ -1047,6 +1062,11 @@ static void vxlan_free(struct net_device *dev)
free_netdev(dev);
}
+#define VXLAN_FEATURES (NETIF_F_SG | \
+ NETIF_F_FRAGLIST | \
+ NETIF_F_HIGHDMA | \
+ NETIF_F_HW_CSUM)
+
/* Initialize the device structure. */
static void vxlan_setup(struct net_device *dev)
{
@@ -1066,6 +1086,8 @@ static void vxlan_setup(struct net_device *dev)
dev->features |= NETIF_F_LLTX;
dev->features |= NETIF_F_NETNS_LOCAL;
dev->priv_flags &= ~IFF_XMIT_DST_RELEASE;
+ dev->features |= VXLAN_FEATURES;
+ dev->hw_features |= VXLAN_FEATURES;
spin_lock_init(&vxlan->hash_lock);
--
1.7.1
_______________________________________________
dev mailing list
[email protected]
http://openvswitch.org/mailman/listinfo/dev
