From owner-freebsd-wireless@FreeBSD.ORG Sun Dec 16 16:47:26 2012 Return-Path: Delivered-To: freebsd-wireless@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 76787AD8 for ; Sun, 16 Dec 2012 16:47:26 +0000 (UTC) (envelope-from adrian.chadd@gmail.com) Received: from mail-wg0-f52.google.com (mail-wg0-f52.google.com [74.125.82.52]) by mx1.freebsd.org (Postfix) with ESMTP id 037378FC16 for ; Sun, 16 Dec 2012 16:47:25 +0000 (UTC) Received: by mail-wg0-f52.google.com with SMTP id 12so2176481wgh.31 for ; Sun, 16 Dec 2012 08:47:24 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type; bh=FCvKlnTpAbMCJf0s0pg0r7pS5uxj19fzI8iKuXWPoO0=; b=EIbYLKiXJxzOEvXUQi791dmrpw0bBWTZlwggiSgMTeyY3Hept8ulTMuHWDN0sKi6za 3JKcGrcLsfN8aiLIX3xUpbmT+C9zEmLPNS7khVPVWXfGQAL/5Q90pxJzuV4OkL1+f8IA AkbIZJxnCZeg3CYQ1ExUcckZVQwSspyHabLAFvU9W4+5VftA2IlgRH9vCkGSZOUiALQw /QIEv+0r+/GOgJuLUft33bQyAdYzHuMDauVY6rIwwOYZ5ZWmknnz5WHyVzOKexqfXBZI /PKi3d6fe7ML3V2K4U9jQ6JO88Wb3umo6qpmWRIUYdST0wIYJtkvv1GkTflGEZBPiyL8 rRfA== MIME-Version: 1.0 Received: by 10.180.73.202 with SMTP id n10mr10988637wiv.17.1355676444755; Sun, 16 Dec 2012 08:47:24 -0800 (PST) Sender: adrian.chadd@gmail.com Received: by 10.217.57.9 with HTTP; Sun, 16 Dec 2012 08:47:24 -0800 (PST) In-Reply-To: <20121216.143815.770.4@DOMY-PC> References: <20121216.143815.770.4@DOMY-PC> Date: Sun, 16 Dec 2012 08:47:24 -0800 X-Google-Sender-Auth: urs8bc1aR6OO00x7-E1wvtJktMQ Message-ID: Subject: Re: Atheros chip for FreeBSD Access Point From: Adrian Chadd To: rank1seeker@gmail.com Content-Type: text/plain; charset=ISO-8859-1 Cc: freebsd-wireless@freebsd.org X-BeenThere: freebsd-wireless@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: "Discussions of 802.11 stack, tools device driver development." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 16 Dec 2012 16:47:26 -0000 On 16 December 2012 06:38, wrote: > I need a card(PCI/PCIe) with Atheros bassed chip, for hostAP with 5Ghz + n support Hi! > After searching '/sys/dev/ath' for 'hostap' on '9.0-RELEASE-p5', 'AR5416' came out as a lattest chip, which supports it + N ready + supports 5ghz + supports hardware encription > Exactlly ALL requierements which I target for! Yup! > However looking at: > http://wiki.freebsd.org/dev/ath_hal%284%29/HardwareSupport > Scetion: 'Known chipset issues/limitations/bugs' > -------- > AR5416 (Mine choice) / AR5418 > > interrupt read-and-clear bug Every chip up until the AR938x has this bug. It's ok, I've worked around it. > PHY register read corruption bug I need to finish this WAR, but it's not a problem. > 8K max aggregate size if RTS protected, otherwise 64K max size This results in reduced throughput in 802.11n modes. It's fine, you can still get > 150mbit TCP out of it in quiet conditions; it just means in noisier conditions the smaller RTS size means you end up with lower performance. > radar detection limited to primary channel only We don't do radar detection yet, so no worries. > can't do 4-addr frames with aggregation; thus it can't participate in WDS without local (Atheros) extensions I haven't made WDS + 11n work right. > block-ack issues with multi-ssid mode (?); thus aggregation is only supported on the first (lowest?) mac address. Or, just don't create more than one virtual 11n-enabled interface. Yup, only one VAP supported for 11n + aggregation. > -------- > I can't decrypt those sentences, so ... > Should I be worried about them, as AP must give best speed and reliability. Then you shouldn't go with the AR5416. > > > Then again, looking at lattes 'AR9287' chip - my WOULD_LIKE choice The AR9287 has almost all of the above bugs fixed. But it's only 2GHz. > -------- > AR9227/AR9287 > > interrupt read-and-clear bug > -------- > > But it doesn't seem to support hostAP mode! It does! > If it does, then correct me! > Rememeber, I was searching '9.0-RELEASE-p5' code tree! > > > Looks like my best bet is: > AR5416 (with radio AR5133), but latest is AR9287 Yes, but if you need 2/5GHz support, I suggest grabbing an AR9220/AR9280 and using that. > Additionally 'AR5416' supports hardware encription, does 'AR9287' too? Yup, all the Atheros chips support hardware encryption. Everything AR5212 and later supports all of the encryption types. Adrian