[dpdk-dev] [PATCH v3 6/8] driver/virtio:enqueue vhost TX offload

Xu, Qian Q qian.q.xu at intel.com
Thu Nov 5 11:44:45 CET 2015


OK, I will check it tomorrow. 
Another comment is that "Legacy vhost + virtio-pmd" is not the common use case. Firstly, in this case, virtio-pmd has no TCP/IP stack, TSO is not very meaningful; secondly, we can't get performance benefit from this case compared to "Legacy vhost+ legacy virtio". So I'm afraid no customer would like to try this case since the fake TSO and poor performance. 


Thanks
Qian


-----Original Message-----
From: Thomas Monjalon [mailto:thomas.monjalon at 6wind.com] 
Sent: Thursday, November 05, 2015 5:02 PM
To: Xu, Qian Q
Cc: Liu, Jijiang; dev at dpdk.org; Michael S. Tsirkin
Subject: Re: [dpdk-dev] [PATCH v3 6/8] driver/virtio:enqueue vhost TX offload

2015-11-05 08:49, Xu, Qian Q:
> Test Case 1:  test_dpdk vhost+ virtio-pmd tso 
[...]
> Test Case 2:  test_dpdk vhost+legacy virtio iperf tso
[...]
> Yes please, I'd like to see a test report showing this virtio running with Linux vhost and without vhost.
> We must check that the checksum is well offloaded and sent packets are valids.
> Thanks

Thanks for doing some tests.
I had no doubt it works with DPDK vhost.
Please could you do some tests without vhost and with kernel vhost?
We need to check that the checksum is not missing in such cases.


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