From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail.atheros.com ([12.36.123.2]:20852 "EHLO mail.atheros.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750957AbZENSob (ORCPT ); Thu, 14 May 2009 14:44:31 -0400 Received: from mail.atheros.com ([10.10.20.108]) by sidewinder.atheros.com for ; Thu, 14 May 2009 11:44:32 -0700 Subject: Re: [ath9k-devel] ath9k module-Unable to set channel-since ath comes From: Jouni Malinen To: Davide Pesavento CC: "Luis R. Rodriguez" , "alexander.bartha@drz-wien.at" , Alexander Bartha , linux-wireless , "ath9k-devel@lists.ath9k.org" , Johannes Berg In-Reply-To: <2da21fe50905120135h1cb8746foae4b3b4b37b3cb24@mail.gmail.com> References: <43e72e890905101141r6fe3b655ta158acabf4c87ec3@mail.gmail.com> <43e72e890905112355t53537ca9w2797cfc8694302@mail.gmail.com> <1242112310.3873.55.camel@johannes.local> <43e72e890905120014w13ca9317r8ec8fa270f2bbb1e@mail.gmail.com> <2da21fe50905120135h1cb8746foae4b3b4b37b3cb24@mail.gmail.com> Content-Type: text/plain Date: Thu, 14 May 2009 21:44:27 +0300 Message-ID: <1242326667.14069.20.camel@jm-desktop> MIME-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Tue, 2009-05-12 at 01:35 -0700, Davide Pesavento wrote: > I've already reported ath9k's issues with PS multiple times [1] [2] > [3], but the driver hasn't been fixed yet. You can find a verbose > debugging output at [4], I hope that helps in fixing the problem (I > can provide even more info if needed and I'm willing to test patches). I submitted a set of patches to resolve some of the PS issues in ath9k. I would expect these to hit wireless-testing.git eventually, but if you are willing to test the changes before that, you can find the patches from http://w1.fi/p/ps/ One thing to note here is that there are still some issues with the timeout=0 case (use of PS-Poll to fetch buffered frames) which is enabled with "iwconfig wlan0 power on", so at this point, I would recommend running the test either with the default wireless-testing.git PS mode setting or by enabling power saving with "iwconfig wlan0 power timeout 500ms" which should result in the same configuration. I have not tested these on AR5418, but at least with AR9280, these patches do improve stability and general functionality of the default PS mode considerably. I have been able to run multi-hour tests without losing connection. - Jouni From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jouni Malinen Date: Thu, 14 May 2009 21:44:27 +0300 Subject: [ath9k-devel] ath9k module-Unable to set channel-since ath comes In-Reply-To: <2da21fe50905120135h1cb8746foae4b3b4b37b3cb24@mail.gmail.com> References: <43e72e890905101141r6fe3b655ta158acabf4c87ec3@mail.gmail.com> <43e72e890905112355t53537ca9w2797cfc8694302@mail.gmail.com> <1242112310.3873.55.camel@johannes.local> <43e72e890905120014w13ca9317r8ec8fa270f2bbb1e@mail.gmail.com> <2da21fe50905120135h1cb8746foae4b3b4b37b3cb24@mail.gmail.com> Message-ID: <1242326667.14069.20.camel@jm-desktop> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: ath9k-devel@lists.ath9k.org On Tue, 2009-05-12 at 01:35 -0700, Davide Pesavento wrote: > I've already reported ath9k's issues with PS multiple times [1] [2] > [3], but the driver hasn't been fixed yet. You can find a verbose > debugging output at [4], I hope that helps in fixing the problem (I > can provide even more info if needed and I'm willing to test patches). I submitted a set of patches to resolve some of the PS issues in ath9k. I would expect these to hit wireless-testing.git eventually, but if you are willing to test the changes before that, you can find the patches from http://w1.fi/p/ps/ One thing to note here is that there are still some issues with the timeout=0 case (use of PS-Poll to fetch buffered frames) which is enabled with "iwconfig wlan0 power on", so at this point, I would recommend running the test either with the default wireless-testing.git PS mode setting or by enabling power saving with "iwconfig wlan0 power timeout 500ms" which should result in the same configuration. I have not tested these on AR5418, but at least with AR9280, these patches do improve stability and general functionality of the default PS mode considerably. I have been able to run multi-hour tests without losing connection. - Jouni