Return-path: Received: from mail-vx0-f174.google.com ([209.85.220.174]:46127 "EHLO mail-vx0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750888Ab2BDK2b (ORCPT ); Sat, 4 Feb 2012 05:28:31 -0500 Received: by vcge1 with SMTP id e1so3115473vcg.19 for ; Sat, 04 Feb 2012 02:28:30 -0800 (PST) MIME-Version: 1.0 In-Reply-To: <20120203055645.GA15811@vmraj-lnx.users.atheros.com> References: <1328112335-19265-1-git-send-email-rmanohar@qca.qualcomm.com> <1328112335-19265-2-git-send-email-rmanohar@qca.qualcomm.com> <20120203055645.GA15811@vmraj-lnx.users.atheros.com> Date: Sat, 4 Feb 2012 02:28:30 -0800 Message-ID: (sfid-20120204_112835_031395_2837D353) Subject: Re: [PATCH 2/2] ath9k_hw: improve ANI processing and rx desensitizing parameters From: Adrian Chadd To: Rajkumar Manoharan Cc: linville@tuxdriver.com, linux-wireless@vger.kernel.org, Paul Stewart , Susinder Gulasekaran , Suresh Chandrasekaran Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-wireless-owner@vger.kernel.org List-ID: My point is that "use self corr low" isn't exactly and only "weak signal detection". My understanding is there's a whole heap of various PHY twiddles that set thresholds in the OFDM/CCK decoder. Disabling weak detection involves setting those thresholds high so they don't trigger on weak signals. I'd like to suggest we hold off on committing anything that really changes the ANI behaviour without figuring out exactly what's going on underneath the hood. I think it's worthwhile filing a bugzilla report and stuffing that patch against the bug though, so it's not "lost". I can get some further information next week by paying the baseband/radio guys a visit. I'll see if we can figure out what's going on and why your ANI changes improve in that specific environment. (As a side note - it'd be nice to eliminate more 'stuck beacon' issues that relate to the radio side of things.) Adrian