Message-ID: <211816ff03cf188d834a21b1fbc98b4f8c5b81f4.camel@sipsolutions.net>
Subject: Re: Flag for detecting 802.11r Fast BSS Transition support
From:   Johannes Berg <johannes@sipsolutions.net>
To:     Brian Norris <briannorris@chromium.org>,
        Matthew Wang <matthewmwang@google.com>
Cc:     linux-wireless@vger.kernel.org,
        Kirtika Ruchandani <kirtika@google.com>
Date:   Mon, 08 Apr 2019 21:52:30 +0200
In-Reply-To: <20190403210200.GA93453@google.com> (sfid-20190403_230207_629987_2069AD98)
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         <20190403210200.GA93453@google.com> (sfid-20190403_230207_629987_2069AD98)
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On Wed, 2019-04-03 at 14:02 -0700, Brian Norris wrote:
> + Johannes
> 
> On Thu, Oct 04, 2018 at 12:06:50PM -0700, Matthew Wang wrote:
> > Hi,
> > 
> > I'm wondering if there is a flag for detecting firmware/driver support
> > for FT. It seems like checking for SME support is a pretty good proxy
> > for this, but there is a non-mac80211 driver that can do FT as well
> > (ath/wil6210). It would be great if anyone knows of a feature flag
> > specifically for FT.
> 
> I chatted with Johannes, and he agreed that there was no such flag
> today. It also sounded like he was open to adding one, even if it's
> several years too late. I don't think there's any useful way people
> could (generically) use FT support today.

I guess I'm not really sure if the flag is needed, but I guess like the
original question says, it'd be more about non-mac80211 drivers.

So I guess you'd have to figure out what operations the drivers need to
support then? I'm not even sure how wpa_s would handle this for SME
offload devices.

johannes