Re: [PATCH] netdevsim: update rxq->napi pointer during queue reset

On Wed, Aug 12, 2026 at 7:32 PM <[email protected]> wrote:
> Earlier in this function (nsim_queue_start), there is an early return
> for rq_reset_mode == 1 that bypasses the new restoration code:
>
> drivers/net/netdevsim/netdev.c:nsim_queue_start() {
>         ...
>         if (ns->rq_reset_mode == 1) {
>                 ns->rq[idx]->page_pool = qmem->pp;
>                 napi_enable_locked(&ns->rq[idx]->napi);
>                 return 0;
>         }
>         ...
> }
>
> Does this skip restoring rxq->napi, leaving it NULL and preventing XSK busy
> polling from working after a reset in mode 1?

Yes, I missed to handle the case when reset mode is 1. Sent a v2 patch fixing
this - https://lore.kernel.org/netdev/[email protected]/