Date: Wed, 8 Sep 2010 13:32:51 +0100 From: Rui Paulo <rpaulo@FreeBSD.org> To: John Nielsen <lists@jnielsen.net> Cc: freebsd-net@freebsd.org Subject: Re: Is 802.11n rate control being worked on? Message-ID: <9EB9CCE4-2F4A-4653-BF11-066E3490F3AF@FreeBSD.org> In-Reply-To: <1F563B4F-B1DF-4829-966D-63264EC8AB61@jnielsen.net> References: <1F563B4F-B1DF-4829-966D-63264EC8AB61@jnielsen.net>
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On 7 Sep 2010, at 19:41, John Nielsen wrote: > I am working on a network scenario which would benefit greatly from = the MIMO features and higher bandwidth of 802.11n. It's my understanding = that 11n is not fully supported in FreeBSD since there is no appropriate = rate control algorithm in the tree. Is that still the case? I've worked on supporting 11n on ath_rate_sample but it's incomplete. >=20 > I would _really_ like to run FreeBSD for this project, and I believe = the Atheros wireless cards I plan to use are supported by ath(4). I'd = like to find out what else needs to happen to complete the picture. I = may even go so far as to write some code myself. :) >=20 > Is anyone working on this at the moment? Not really, I did some work in the past, but it's incomplete. >=20 > Is it just the rate control that needs to be done or are there other = parts involved? Is MIMO separate? We have MIMO on some non-Atheros drivers, but one of these drivers = (Ralink 11n) is not yet in the tree. >=20 > Is there a detailed description of the missing pieces somewhere? Or a = not-very-detailed summary of where to look and what to read to get = started? Not really. There's some interest from other FreeBSD committers to get = this going, so I'll let them chime in. Regards, -- Rui Paulo
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