Re: [PATCH 01/13] wifi: cfg80211: Add provision to advertise multiple radio in one wiphy

Johannes Berg
2024-03-29T14:30:56Z

On Fri, 2024-03-29 at 19:41 +0530, Vasanthakumar Thiagarajan wrote:
> >
> > > + * @hw_chans: list of the channels supported by every constituent underlying
> > > + * hardware. Drivers abstracting multiple discrete hardware (radio) under
> > > + * one wiphy can advertise the list of channels supported by each physical
> > > + * hardware in this list. Underlying hardware specific channel list can be
> > > + * used while describing interface combination for each of them.
> >
> > I'd expect there to be a limit on channels being within a single band on
> > a single "hardware"?
> >
>
> There are ath12k hardware supporting multiple band which need to be
> registered under one mac80211_hw/wiphy. This design is to support such
> hardware.

Oh OK, that was something that I didn't have in mind any more, or never
knew or paid attention to.

> I agree, it is adding complexities. I was thinking if this can
> be done in steps , first limiting to single band for a single hardware
> then extending it with multiple bands later but that may bring in
> different set of challenges...

Probably not point, yeah.

johannes