Re: [PATCH net-next v2 0/2] flow_offload: add tc police parameters

Roi Dayan
2022-02-17T11:53:10Z

On 2022-02-17 1:34 PM, Simon Horman wrote:
> On Thu, Feb 17, 2022 at 08:28:01AM +0000, Jianbo Liu wrote:
>> As a preparation for more advanced police offload in mlx5 (e.g.,
>> jumping to another chain when bandwidth is not exceeded), extend the
>> flow offload API with more tc-police parameters. Adjust existing
>> drivers to reject unsupported configurations.
>
> Hi,
>
> I have a concern that
> a) patch 1 introduces a facility that may break existing drivers; and
> b) patch 2 then fixes this
>
> I'd slightly prefer if the series was rearranged to avoid this problem.
>
> ...

Hi Simon,

It can't be rearranged as patch 2 can't compile without patch 1.
Patch 1 only adds more information passing to the driver.

The drivers functionality doesn't change. drivers today ignore
police information, like actions, and still being ignored after patch 1.

patch 2 updates the drivers to use that information instead of
ignoring it. so it fixes the drivers that without patch 1 can't be
fixed.

Thanks,
Roi