From: Johannes Berg <johannes@sipsolutions.net>
To: Karl Beldan <karl.beldan@gmail.com>
Cc: Felix Fietkau <nbd@openwrt.org>, linux-wireless@vger.kernel.org
Subject: Re: [PATCH v4] mac80211/minstrel_ht: add support for using CCK rates
Date: Fri, 15 Mar 2013 16:36:58 +0100 [thread overview]
Message-ID: <1363361818.8656.20.camel@jlt4.sipsolutions.net> (raw)
In-Reply-To: <20130312094119.GA23062@magnum.frso.rivierawaves.com> (sfid-20130312_104432_201994_A9C4F916)
On Tue, 2013-03-12 at 10:41 +0100, Karl Beldan wrote:
> On Wed, Feb 13, 2013 at 10:51:08AM +0100, Felix Fietkau wrote:
> > When MCS rates start to get bad in 2.4 GHz because of long range or
> > strong interference, CCK rates can be a lot more robust.
> >
> > This patch adds a pseudo MCS group containing CCK rates (long preamble
> > in the lower 4 slots, short preamble in the upper slots).
> >
> With this, mac80211 might send CCK rates with IEEE80211_TX_CTL_AMPDU set.
> For aggregates, if we don't currently set NO_CCK, at the very least the
> 1st rate index should belong to an MCS_GROUP.
I guess that depends on how you expect rate control to work ... I'd
kinda expect the driver to skip aggregation then? I think only ath9k
even uses minstrel + aggregation?
johannes
next prev parent reply other threads:[~2013-03-16 12:57 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-13 9:51 [PATCH v4] mac80211/minstrel_ht: add support for using CCK rates Felix Fietkau
2013-02-13 9:57 ` Johannes Berg
2013-03-12 9:41 ` Karl Beldan
2013-03-15 15:36 ` Johannes Berg [this message]
2013-03-17 21:23 ` Karl Beldan
2013-03-17 21:46 ` Felix Fietkau
2013-03-17 22:07 ` Karl Beldan
2013-03-17 22:30 ` Adrian Chadd
2013-03-17 22:40 ` Karl Beldan
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