Re: [PATCH net v4 3/4] netdevsim: support devmem RX and TX bindings

From: Mina Almasry

Date: Mon Nov 09 2026 - 15:21:37 EST


On Mon, Nov 9, 2026 at 10:50 AM Jakub Kicinski <kuba@xxxxxxxxxx> wrote:
>
> On Sat, 7 Nov 2026 22:21:48 -0800 Mina Almasry wrote:
> > So I started looking into whether we can improve test and fuzz
> > coverage with an improved netdevsim. My LLM prototyped full datapath
> > (with devmem) and offload support in netdevsim so the hardware
> > selftests and packetdrill run and pass in a plain VM without physical
> > NICs. I posted the branch at:
> >
> > https://github.com/mina/linux/tree/nsim-devmem-rx-tx
> >
> > The main problem is the total LLM generated diff to netdevsim: 62
> > files changed with 5,525 additions and 672 deletions :( So it's a big
> > change.
>
> Great! Please keep that slop to yourself, tho.
> Upstream isn't built to host people weekend slop.

Understood and sorry for the bad suggestion! I was indeed unsure how
you felt about including that kind of slop in test code. It was a bit
too tempting to suggest it to enable the extra test coverage.

--
Thanks,
Mina