[ovs-discuss] Please tell me how to enable the TCP checksum HWofflo ad function of outgoing packets on the NIC in the OVS + DPDKenviro nment.

Ilya Maximets i.maximets at ovn.org
Fri Jul 23 16:51:10 UTC 2021

> 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:

Though, you need to be careful with it.  See the limitations
in the doc.

Best regards, Ilya Maximets.

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