[ovs-discuss] Please tell me how to enable the TCP checksumHWof flo ad function of outgoing packets on the NIC in the OVS + DPDKen vironment.

"h-nakase.wm@docomo.ne.jp" h-nakase.wm at docomo.ne.jp
Mon Jul 26 03:01:57 UTC 2021


H i  Ilya Maxmets.
Thank ynu very much.
I was able to solve it with the command taught me.
it was very helpful.

Best regards.


iPhoneから送信

> 2021/07/24 1:51、Ilya Maximets <i.maximets at ovn.org>のメール:
> 
> 
>> 
>> Hello everyone.
>> 
>> Regarding the subject, I would like to enable the HW offload function of TCP checksum on the NIC in the following server configuration.
>> If you know how to set it, it would be greatly appreciated if you could teach it
>> 
>> The server configuration is a configuration in which the host OS is CentoOS and the container and NIC are connected to the OVS + DPDK bridge.
>> 
>> With this configuration, I would like to know how to perform the TCP checksum HW offload function of packets sent from the container to the NIC on the NIC.
>> 
>> Thank you very much.
> 
> Hi.  I don't think it's possible to enable just checksum
> offloading, but you can enable it as part of segmentation
> offloading support:
>  https://docs.openvswitch.org/en/latest/topics/userspace-tso/
> 
> Though, you need to be careful with it.  See the limitations
> in the doc.
> 
> Best regards, Ilya Maximets.


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