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From: "Avi Cohen (A)" <avi.cohen@huawei.com>
To: "users@dpdk.org" <users@dpdk.org>, "ovs-discuss@openvswitch.org"
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Thread-Topic: wrong  TCP checksum on a vdev device
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Date: Mon, 26 Jun 2017 08:37:14 +0000
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Subject: [dpdk-users] wrong  TCP checksum on a vdev device
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Hi,
Setup :
Namespace (no DPDK)  <--> veth1  --- veth0  type dpdk-af-packet <--> ovs-dp=
dk.

TCP packets generated at the namespace have wrong TCP checksum (probably no=
t calculated ).  ICMP/UDP is OK.

If I disable the tx-hw-offload - TCP is running but performance is degraded=
 (probably huge degradation)=20
In native OVS (i.e. no DPDK)  - there is no problem.
Is this a bug ?=20
Best Regards
avi