After inserting the VLAN tag with __vlan_put_tag(), we should
re-calculate the skb checksum if it is done.
Cc: Jesse Gross <je...@nicira.com>
Signed-off-by: Cong Wang <amw...@redhat.com>
---
diff --git a/datapath/vport-netdev.c b/datapath/vport-netdev.c
index 727194e..99a6eca 100644
--- a/datapath/vport-netdev.c
+++ b/datapath/vport-netdev.c
@@ -313,6 +313,10 @@ static int netdev_send(struct vport *vport, struct sk_buff
*skb)
skb = __vlan_put_tag(skb, vlan_tx_tag_get(skb));
if (likely(skb)) {
+ if (skb->ip_summed == CHECKSUM_COMPLETE)
+ skb->csum = csum_add(skb->csum,
csum_partial(skb->data
+ + (2 *
ETH_ALEN), VLAN_HLEN, 0));
+
len += skb->len;
vlan_set_tci(skb, 0);
dev_queue_xmit(skb);
@@ -328,6 +332,9 @@ tag:
skb = __vlan_put_tag(skb, vlan_tx_tag_get(skb));
if (unlikely(!skb))
return 0;
+ if (skb->ip_summed == CHECKSUM_COMPLETE)
+ skb->csum = csum_add(skb->csum, csum_partial(skb->data
+ + (2 * ETH_ALEN), VLAN_HLEN, 0));
vlan_set_tci(skb, 0);
}
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