On Thu, Sep 25, 2025 at 11:54 AM +01, Mehdi Ben Hadj Khelifa wrote:

On 9/25/25 10:43 AM, Jakub Sitnicki wrote:

quoted

On Tue, Sep 23, 2025 at 10:00 PM +01, Mehdi Ben Hadj Khelifa wrote:

quoted

  This patch series is intended to make a base for setting
  queue_index in the xdp_rxq_info struct in bpf/cpumap.c to
  the right index. Although that part I still didn't figure
  out yet,I m searching for my guidance to do that as well
  as for the correctness of the patches in this series.

What is the use case/movtivation behind this work?

The goal of the work is to have xdp programs have the correct packet RX queue
index after being redirected through cpumap because currently the queue_index
gets unset or more accurately set to 0 as a default in xdp_rxq_info. This is my
current understanding.I still have to know how I can propogate that HW hint from
the NICs to the function where I need it.

This explains what this series does, the desired end state of
information passing, but not why is does it - how that information is
going to be consumed? To what end?

I'd start by figuring that part out. Otherwise you're just proposing
adding code that serves no actual purpose.