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From: Arik Nemtsov <arik@wizery.com>
Date: Thu, 24 May 2012 08:32:14 +0300
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Subject: Re: [PATCH] mac80211: allow setting default U-APSD queues/max_sp_len
 for STA
To: Kalle Valo <kvalo@adurom.com>
Cc: linux-wireless@vger.kernel.org,
	Johannes Berg <johannes@sipsolutions.net>
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Sender: linux-wireless-owner@vger.kernel.org

On Thu, May 24, 2012 at 8:12 AM, Kalle Valo <kvalo@adurom.com> wrote:
> But this was a workaround for an IOP problem with certain APs, right?
> How is firmware going to be smart in that case?
>
> It would help to see what you are exactly planning to do on wl12xx with
> this interface. Currently I'm just guessing what your plans really are.

The plan is to enable only VO as U-APSD (as I wrote in a previous
email). We've had problems with some APs (can't remember the models)
that assume non-VO ACs always use legacy PS. This would lead to
problems - our driver would never wake up. In that sense the problem
is general.

But in wl12xx the FW handles network PS on its own (PS-poll etc.), so
it may just be a bug with our FW. So hard-coding this into mac80211
seems a bit of an overkill.

Maybe you can offer a better solution?

Arik