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 32790c3..3a73bcd 100644
--- a/datapath/linux/compat/gso.c
+++ b/datapath/linux/compat/gso.c
@@ -186,6 +186,8 @@ static struct sk_buff *tnl_skb_gso_segment(struct sk_buff
*skb,
* make copy of it to restore it back. */
memcpy(cb, skb->cb, sizeof(cb));
+ skb->encapsulation = 0;
+
/* We are handling offloads by segmenting l3 packet, so
* no need to call OVS compat segmentation function. */
--
1.9.1
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