Return-path: Received: from out3.smtp.messagingengine.com ([66.111.4.27]:33188 "EHLO out3.smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753218Ab1JAXX2 (ORCPT ); Sat, 1 Oct 2011 19:23:28 -0400 Message-ID: <4E87A110.6030201@emobix.co.uk> (sfid-20111002_012333_473731_504390E3) Date: Sun, 02 Oct 2011 00:24:00 +0100 From: Ian Jeffray MIME-Version: 1.0 To: Larry Finger CC: linux-wireless@vger.kernel.org Subject: Re: r8712u driver - on ARM References: <4E81ED65.7060703@emobix.co.uk> <4E8757A8.1010302@emobix.co.uk> <4E87609E.5030002@lwfinger.net> <201110012054.42461.chunkeey@googlemail.com> <4E8768EC.9040900@lwfinger.net> In-Reply-To: <4E8768EC.9040900@lwfinger.net> Content-Type: text/plain; charset=ISO-8859-15; format=flowed Sender: linux-wireless-owner@vger.kernel.org List-ID: On 01/10/2011 20:24, Larry Finger wrote: > BTW, netperf shows that r8712u can transmit at ~80 and receive at ~60 > Mbps when connected to a 270 Mbps AP. As Realtek lists this as capable > of 150 Mbps, x86_64 is getting the max transmit rate that we might expect. On x86 32bit, I get a sustained 94Mbps transmit to a 300Mbps AP, which seems pretty good - why I'm keen to get this to work for my ARM target. > @Ian: Ali Bahar submitted a number of patches to GregKH updating the > driver to the latest Realtek version. As the git repo is not available > due to kernel.org, and I have not found an alternate location that Greg > has established, I am attaching them here. Many thanks for that. I've applied all Ali's patches you attached, and tried on my Blackfin host, both with and without musb DMA enabled - no improvement, sadly. I had also tried the 2.6.6.0.20110401 driver from Realtek without any change in behaviour. May try adding some liberal debug trace next, to compare to operation on x86. Regards, Ian.