From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wi0-f175.google.com (mail-wi0-f175.google.com [209.85.212.175]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority" (verified OK)) by huchra.bufferbloat.net (Postfix) with ESMTPS id 0CF4B200B49 for ; Sat, 18 Aug 2012 11:07:40 -0700 (PDT) Received: by wibhm2 with SMTP id hm2so2004974wib.10 for ; Sat, 18 Aug 2012 11:07:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=message-id:date:from:user-agent:mime-version:to:subject:references :in-reply-to:content-type:content-transfer-encoding; bh=rV//xh2ch2jWu+FNS+Y/WtDmQmXxahWiK6KRFYsp3iE=; b=QDrRLqJNNVvl8wrOlIagDmcg4/xIWBAH5Mt2Z/4+e1xn/+yjt/ZFfGTPf36pWiUz1j OOEFeqjzCxxjGu9AVu0qToeVA6CVDqLogn1zXsvdbCyOMF2ro5GLDFASaoLtqJQcRZPC mFn9R8VU5rLWNve2XDPqUimChR/MAphsIqUBfpxcn2bJM02oVIMfgAiHBl7sMfXO+s5u jpJljPw3Ww8oztU1v9RJytu+b7H0+kBuWrDT9qtLTUkUhj+vZhJr25QsjW/HzwsacGn3 D/6K0TWO82BV5MrQWQ+sxcqfuXCwgSMS02hloFHoQgWlQh0jxXeXQ3oUytlox29Ux6y1 yh8Q== Received: by 10.216.93.6 with SMTP id k6mr4907943wef.86.1345313259137; Sat, 18 Aug 2012 11:07:39 -0700 (PDT) Received: from [192.168.1.4] (cpc3-seac6-0-0-cust991.7-2.cable.virginmedia.com. [81.105.255.224]) by mx.google.com with ESMTPS id dc3sm17330728wib.7.2012.08.18.11.07.37 (version=TLSv1/SSLv3 cipher=OTHER); Sat, 18 Aug 2012 11:07:38 -0700 (PDT) Message-ID: <502FD9EA.6070009@gmail.com> Date: Sat, 18 Aug 2012 19:07:38 +0100 From: Robert Bradley User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:14.0) Gecko/20120714 Thunderbird/14.0 MIME-Version: 1.0 To: cerowrt-devel@lists.bufferbloat.net References: <502F2FA3.1000004@renta.net> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [Cerowrt-devel] Raspberry Pi build X-BeenThere: cerowrt-devel@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: Development issues regarding the cerowrt test router project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 18 Aug 2012 18:07:41 -0000 On 18/08/12 18:38, Dave Taht wrote: > 2) I have no idea what wireless chip is in the pi, nor its current state. (?) The Raspberry Pi has no built-in wireless chip, but using USB WiFi adapters would be possible. > 3) In order for things like fq_codel to have a hope of working well at > the ethernet level, "Byte Queue Limits" (BQL) is *required*. I don't > think any USB to ethernet adaptors have that yet, but I would welcome > being wrong. And even if BQL worked over USB, we might have issues > with the USB layer left to deal with... but BQL is easy to implement > on native ethernet (6-8 lines of code or so)... > > I went looking through the source trees briefly and didn't find > anything that jumped out at me. If you can point me to the right > drivers I'll take a look. (and/or ask question 3 on a rasperry pi list > for us?) > I did a bit of digging, and the Raspberry Pi uses the SMSC LAN9512 chip for wired Ethernet (http://www.smsc.com/media/Downloads_Public/Data_Sheets/9512.pdf). The smsc95xx driver currently lacks BQL support, so that would need to be added first. -- Robert Bradley