Commit 1b8a8fba authored Aug 18, 2021 by kaixi.fan Committed by Sasha Levin Aug 26, 2021

ovs: clear skb->tstamp in forwarding path



[ Upstream commit 01634047bf0d5c2d9b7d8095bb4de1663dbeedeb ]

fq qdisc requires tstamp to be cleared in the forwarding path. Now ovs
doesn't clear skb->tstamp. We encountered a problem with linux
version 5.4.56 and ovs version 2.14.1, and packets failed to
dequeue from qdisc when fq qdisc was attached to ovs port.

Fixes: fb420d5d ("tcp/fq: move back to CLOCK_MONOTONIC")
Signed-off-by: kaixi.fan <fankaixi.li@bytedance.com>
Signed-off-by: xiexiaohui <xiexiaohui.xxh@bytedance.com>
Reviewed-by: Cong Wang <cong.wang@bytedance.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

parent 84dbbf54

net/openvswitch/vport.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -499,6 +499,7 @@ void ovs_vport_send(struct vport vport, struct sk_buff skb, u8 mac_proto)
		}

		skb->dev = vport->dev;
		skb->tstamp = 0;
		vport->ops->send(skb);
		return;