[ovs-dev] The Patch netdev-dpdk: add TSO support for vhost-user ports

Kavanagh, Mark B mark.b.kavanagh at intel.com
Fri Oct 14 09:15:05 UTC 2016


>
>
>Hi, Mark
>
>
>OK, once it's ready, pls let me know and I'm glade to help to test it.
>
>
>BTW, you mentioned the gap, is that the TSO and CSUM of tunnel offload?
>I'm familiar with it, and I hope I could do something on it if possible.

Yes, that's what it was. 

Commits have recently been introduced to DPDK that introduce additional flags for tunnel offloading, but I haven't had a chance to test them with in my TSO+VxLAN codebase.

Thanks,
Mark

>
>
>2016/10/11 22:34, Kavanagh, Mark B :
>>> Hi,  all
>>>
>>>
>>> This patch is very important for users want to improve the performance
>>> of the large packets.
>>>
>>>
>>> But you know, in data center, lots of networks using vxlan, so if it
>>> supports vxlan, then it will be very useful.
>>>
>>>
>>> Would you guys has a plan to support it? I would like to help test it,
>>> or work together on it?
>> Hi Michael,
>>
>> Some work has already been done to enable TSO over VxLAN, but it was blocked until
>recently, on account of gaps in the DPKD i40e PMD's support for tunnel offload.
>>
>> We believe that those gaps have now been addressed; our current focus is on ironing out the
>issues in TSO support over flat and VLAN networks - once that's done, we plan to resume work
>on VxLAN support (and GRE, IPinIP).
>>
>> Hope this helps,
>> Mark
>>
>>>
>>> --
>>> Thanks,
>>> Michael
>>>
>
>--
>Thanks,
>Michael
>



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