OVS compat layer can handle tunnel GSO packets. but it does
keep skb encapsulation on for packet handled in GSO. This can
confuse some NIC drivers. I have seen this issue on intel devices:
i40e 0000:42:00.0: TX driver issue detected, PF reset issued
Following patch resets this bit in case compat layer handles the packet.
VMware-BZ: 1698877
Signed-off-by: Pravin B Shelar <pshe...@ovn.org>
---
datapath/linux/compat/gso.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/datapath/linux/compat/gso.c b/datapath/linux/compat/gso.c
index 92f5441..8368c6a 100644
--- a/datapath/linux/compat/gso.c
+++ b/datapath/linux/compat/gso.c
@@ -271,6 +271,7 @@ int rpl_ip_local_out(struct net *net, struct sock *sk,
struct sk_buff *skb)
if (!OVS_GSO_CB(skb)->fix_segment)
return output_ip(skb);
+ skb->encapsulation = false;
if (skb_is_gso(skb)) {
struct iphdr *iph;
@@ -325,6 +326,7 @@ int rpl_ip6_local_out(struct net *net, struct sock *sk,
struct sk_buff *skb)
if (!OVS_GSO_CB(skb)->fix_segment)
return output_ipv6(skb);
+ skb->encapsulation = false;
if (skb_is_gso(skb)) {
skb = tnl_skb_gso_segment(skb, 0, false, AF_INET6);
if (!skb || IS_ERR(skb))
--
1.9.1
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