[ovs-dev] [PATCH V2 10/14] netdev-offload-dpdk: Support tunnel pop action

Eli Britstein elibr at nvidia.com
Tue Mar 2 09:30:51 UTC 2021

On 3/2/2021 11:22 AM, Ivan Malov wrote:
> External email: Use caution opening links or attachments
> Hi Eli,
> From what has been discussed so far it follows that JUMP from group 0
> to the very same group 0 is intentional and corresponds to
> dp_netdev_recirculate. But could you please clarify, is OvS supposed to
> always use the group value of 0 with the tunnel offload model? In other
> words, can PMD expect the OvS to always insert "tunnel set" and "tunnel
> match" rules at group 0?
> Can the PMD always expect OvS to use priority level of 0, too?
Hi Ivan,

Thanks for your comments.

In the proposed series, yes. OVS will always insert tunnel-set and 
tunnel-match rules in group 0, and in priority 0.

However, the PMD and DPDK in general are not OVS specific, and other 
applications may choose to use in other ways, so the PMD must not assume 
such assumptions.

> A brief comment in the code would be useful, too.
Yes, I will add it in v3 to be sent soon.
> -- 
> Ivan M

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