Return-path: Received: from wolverine01.qualcomm.com ([199.106.114.254]:38322 "EHLO wolverine01.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755037Ab1HZNbe (ORCPT ); Fri, 26 Aug 2011 09:31:34 -0400 Date: Fri, 26 Aug 2011 19:02:01 +0530 From: Rajkumar Manoharan To: Felix Fietkau CC: , Subject: Re: [PATCH 2/2] ath9k_hw: Fix slottime with coverage class Message-ID: <20110826133200.GA17491@vmraj-lnx.users.atheros.com> (sfid-20110826_153138_408833_5455C7DA) References: <1314283522-6143-1-git-send-email-rmanohar@qca.qualcomm.com> <1314283522-6143-2-git-send-email-rmanohar@qca.qualcomm.com> <4E566BE3.3080907@openwrt.org> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" In-Reply-To: <4E566BE3.3080907@openwrt.org> Sender: linux-wireless-owner@vger.kernel.org List-ID: On Thu, Aug 25, 2011 at 05:36:03PM +0200, Felix Fietkau wrote: > On 2011-08-25 4:45 PM, Rajkumar Manoharan wrote: > >The commit b6ba41bb27eb9810d54e2301355ce56fd0e94a1a updates > >acktimeout wihout updating slottime when coverage class is defined > >as per IEEE 802.11-2007 17.3.8.6. > > > >Signed-off-by: Rajkumar Manoharan > I intentionally left the coverage class out of the hw slot time > setting, because increasing slot time too much causes severe > throughput issues. I've observed this even with relatively minor > coverage class settings (e.g. for 2 km) on AR9160 and AR9280. I > haven't tested AR9380 though. > Which band have you tested on AR9280? -- Rajkumar