From: Bob Copeland <me@bobcopeland.com>
To: Michal Kazior <michal.kazior@tieto.com>
Cc: Dave Taht <dave.taht@gmail.com>,
linux-wireless <linux-wireless@vger.kernel.org>,
Johannes Berg <johannes@sipsolutions.net>,
"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
Eric Dumazet <eric.dumazet@gmail.com>,
Emmanuel Grumbach <emmanuel.grumbach@intel.com>,
Felix Fietkau <nbd@openwrt.org>, Tim Shepard <shep@alum.mit.edu>
Subject: Re: [RFC/RFT] mac80211: implement fq_codel for software queuing
Date: Tue, 8 Mar 2016 08:14:09 -0500 [thread overview]
Message-ID: <20160308131409.GD5026@localhost> (raw)
In-Reply-To: <CA+BoTQk+3jhwK57_fDw0scNCGzu_Edqp9-Beeppz8xj9kSQcoQ@mail.gmail.com>
On Tue, Mar 08, 2016 at 08:12:21AM +0100, Michal Kazior wrote:
> However other drivers (e.g. ath10k) have offloaded rate control on
> device. There's currently no way of doing this calculation. I was
> thinking of drivers exporting tx_rate to mac80211 in some way - either
> via a simple sta->tx_rate scalar that the driver is responsible for
> updating, or a EWMA that driver updates (hopefully) periodically and
> often enough. This should in theory at least allow an estimate how
> much data on average you can fit into given time frame (e.g. txop, or
> hardcoded 1ms).
What about implementing ops->get_expected_throughput? This would be
useful for mesh (both 11s and batman) as well since they need to
estimate link quality to pick a path.
--
Bob Copeland %% http://bobcopeland.com/
next prev parent reply other threads:[~2016-03-08 13:14 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-26 13:09 [RFC/RFT] mac80211: implement fq_codel for software queuing Michal Kazior
2016-03-01 14:02 ` Johannes Berg
2016-03-02 7:38 ` Michal Kazior
[not found] ` <CA+BoTQkritHYYWA53zb_AcGT4sc92fytQo3CGP6GQouWRift1w-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-03-03 17:00 ` Dave Taht
2016-03-04 2:48 ` Tim Shepard
2016-03-04 6:32 ` Michal Kazior
[not found] ` <CA+BoTQk6J7kgdie9aX24MB+8PxN3oFUh0eVdmVrdyptW5RxQXg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-03-07 14:05 ` Avery Pennarun
[not found] ` <CAPp0ZBYP9UzUTtPz=vivUQkE2FiGSsJjDaecQtPuK8y_d3ccqA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-03-07 15:09 ` Felix Fietkau
[not found] ` <56DD99AA.8050403-p3rKhJxN3npAfugRpC6u6w@public.gmane.org>
2016-03-07 16:25 ` Avery Pennarun
[not found] ` <CAHqTa-2-uZ0PUdwp33E588EU2a7T6KnTYs8RWfNDEzgOLseG9g-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-03-07 16:54 ` Dave Taht
[not found] ` <CAA93jw4JG_uEZaxk1JDKndq9K0+QPwKaAmK6=gZ8e-7qNmc=Cw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-03-07 17:14 ` Avery Pennarun
2016-03-07 17:22 ` Grumbach, Emmanuel
2016-03-07 18:28 ` Dave Taht
[not found] ` <CAA93jw5fvGQ5L7dQupFX4ymhxquswSit1ZiATKmLp4+O4Mwbrw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-03-08 7:41 ` Michal Kazior
[not found] ` <1456492163-11437-1-git-send-email-michal.kazior-++hxYGjEMp0AvxtiuMwx3w@public.gmane.org>
2016-02-26 16:48 ` Felix Fietkau
2016-02-26 18:54 ` Michal Kazior
2016-03-07 23:06 ` Dave Taht
2016-03-08 7:12 ` Michal Kazior
2016-03-08 10:19 ` Toke Høiland-Jørgensen
2016-03-08 13:14 ` Bob Copeland [this message]
2016-03-08 13:27 ` Michal Kazior
[not found] ` <CA+BoTQk+3jhwK57_fDw0scNCGzu_Edqp9-Beeppz8xj9kSQcoQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-03-10 18:57 ` Dave Taht
2016-03-11 8:32 ` Michal Kazior
[not found] ` <CAA93jw4XsEnp3jTgPL7OKWTJP-83VwRaCdb+foc8nCuqxk3WZA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-03-08 10:57 ` Michal Kazior
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