Re: [PATCH rtw-next v8 3/3] wifi: rtw88: time the countdown downloads from the TBTT

["Luka Gejak" <luka.gejak@linux.dev>]

October 21, 2026 at 1:45 PM, "Mehmet Fide" <mehmet.fide@gmail.com> wrote:


> 
> From: Mehmet Fide <mehmet.fide@screeningeagle.com>
> 
> The countdown downloads are queued one beacon interval apart, with no
> relation to the TBTT. A download that runs late past the next TBTT
> leaves a count out of the air.
> 
> Queue each download 10 ms after the next TBTT, read from the TSF, so it
> may run late by almost a beacon interval; a later one is followed by
> the next at once. A TSF jump, an IBSS merge or a reset, restarts the
> schedule from the next TBTT.
> 
> A TBTT just before the start may already have sent the first count; it
> is taken as the one that did, so no count is sent twice.
> 
> The USB chips raise no TBTT interrupt, so the TSF register is read. The
> beaconing interface is always on port 0: rtw_core_port_switch() moves
> an AP there, an IBSS runs alone.
> 
> Signed-off-by: Mehmet Fide <mehmet.fide@screeningeagle.com>

Looking good to me.

Reviewed-by: Luka Gejak <luka.gejak@linux.dev>

Best regards,
Luka Gejak