Subject: Re: [PATCH net-next RFC 00/20] Introducing P4TC

From: Jakub Kicinski <[email-masked]>
Date: Tue, 31 Jan 2023 11:10:20 -0800

On Tue, 31 Jan 2023 05:30:10 -0500 Jamal Hadi Salim wrote:
> > Note, there are two paths in P4TC:
> > DDP loading via devlink is equivalent to loading the P4 binary for the hardware.
> > That is one of the 3 (and currently most popular) driver interfaces
> > suggested. Some of that drew  
> 
> Sorry didnt finish my thought here, wanted to say: The loading of the
> P4 binary over devlink drew (to some people) suspicion it is going to
> be used for loading kernel bypass.

The only practical use case I heard was the IPU. Worrying about devlink
programming being a bypass on an IPU is like rearranging chairs on the
Titanic.