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From: fankaixi.li@bytedance.com
To: dev@openvswitch.org, netdev@vger.kernel.org
Cc: "kaixi . fan" <fankaixi.li@bytedance.com>,
	xiexiaohui <xiexiaohui.xxh@bytedance.com>,
	Cong Wang <cong.wang@bytedance.com>
Subject: [PATCH] ovs: clear skb->tstamp in forwarding path
Date: Wed, 18 Aug 2021 10:22:15 +0800	[thread overview]
Message-ID: <20210818022215.5979-1-fankaixi.li@bytedance.com> (raw)

From: kaixi.fan <fankaixi.li@bytedance.com>

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.

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>
---
 net/openvswitch/vport.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/openvswitch/vport.c b/net/openvswitch/vport.c
index 88deb5b41429..cf2ce5812489 100644
--- a/net/openvswitch/vport.c
+++ b/net/openvswitch/vport.c
@@ -507,6 +507,7 @@ 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;
 
-- 
2.20.1


             reply	other threads:[~2021-08-18  2:22 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-18  2:22 fankaixi.li [this message]
2021-08-18  9:32 ` [PATCH] ovs: clear skb->tstamp in forwarding path Eric Dumazet
2021-08-19  2:06   ` [External] " 范开喜
2021-08-18 10:40 ` patchwork-bot+netdevbpf

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