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

On 2022-02-17 1:34 PM, Simon Horman wrote:

On Thu, Feb 17, 2022 at 08:28:01AM +0000, Jianbo Liu wrote:

quoted

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