[PATCH 1/2] nl80211: add support to enable/disable bss color collision detection

[Rameshkumar Sundaram (QUIC)]

> -----Original Message-----
> From: Johannes Berg <johannes at sipsolutions.net>
> Sent: Thursday, January 19, 2023 7:32 PM
> To: Rameshkumar Sundaram (QUIC) <quic_ramess at quicinc.com>;
> ath11k at lists.infradead.org
> Cc: linux-wireless at vger.kernel.org
> Subject: Re: [PATCH 1/2] nl80211: add support to enable/disable bss color
> collision detection
> 
> On Mon, 2022-12-26 at 14:03 +0530, Rameshkumar Sundaram wrote:
> > As per 802.11ax-2021, STAs shall process BSS Color Change Announcement
> > (BCCA) from AP and switch to new color, but some STAs aren't
> > processing BCCA from AP and not doing color switch, causing them to
> > drop data frames from AP post color change.
> >
> > Provide an option to disable color collision detection and therefore
> > not to do BCCA to mitigate the same from AP. If it's required in case
> > where STA supports BCCA handling, then it can enabled in AP using this
> > option.
> >
> 
> You should probably split this into cfg80211 and mac80211.
Sure I will do it.
> 
> Also, this doesn't really seem to make a lot of _sense_ since nothing in the
> kernel actually acts on detection of a color collision - hostapd is acting on
> that.
> 
> So since you can easily make hostapd ignore the event, why do you even
> need this?
> 
Kernel will keep sending collision events until we switch color/disable BSS color
Hence wanted to avoid the detection itself.

> johannes