Return-path: Received: from mail.neratec.com ([46.140.151.2]:34598 "EHLO mail.neratec.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750757AbaAOIeO (ORCPT ); Wed, 15 Jan 2014 03:34:14 -0500 Message-ID: <52D6472B.2060207@neratec.com> (sfid-20140115_093418_017252_377AD064) Date: Wed, 15 Jan 2014 09:30:35 +0100 From: Wojciech Dubowik MIME-Version: 1.0 To: Sujith Manoharan CC: linux-wireless@vger.kernel.org Subject: Re: [PATCH 5/5] ath9k: Fix TX IQ calibration for SoC chips References: <1384665016-12022-1-git-send-email-sujith@msujith.org> <1384665016-12022-5-git-send-email-sujith@msujith.org> <52CE934D.1020400@neratec.com> <21198.40916.260973.48444@gargle.gargle.HOWL> <52CEA5A3.2040308@neratec.com> <21198.43395.235654.597422@gargle.gargle.HOWL> <52CEAB24.5090700@neratec.com> <52D3F962.1010302@neratec.com> <21204.319.492595.58625@gargle.gargle.HOWL> <52D402C3.3070606@neratec.com> <21204.1991.201080.986559@gargle.gargle.HOWL> <21204.2384.710460.402183@gargle.gargle.HOWL> <21204.3832.404821.109119@gargle.gargle.HOWL> <52D63EBB.7020607@neratec.com> <21206.17284.157496.206327@gargle.gargle.HOWL> In-Reply-To: <21206.17284.157496.206327@gargle.gargle.HOWL> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Sender: linux-wireless-owner@vger.kernel.org List-ID: On 01/15/2014 09:15 AM, Sujith Manoharan wrote: > Wojciech Dubowik wrote: >> Jan 15 08:43:44 wlanTS kernel: [ 1177.026210] NOISE/RSSI/SIGNAL for 04:f0:21:04:56:9e: -87/53/-34 >> Jan 15 08:43:44 wlanTS kernel: [ 1177.028515] NOISE/RSSI/SIGNAL for 04:f0:21:04:56:9e: -87/55/-32 >> Jan 15 08:43:44 wlanTS kernel: [ 1177.028768] ath: phy0: Set HW Key >> Jan 15 08:43:44 wlanTS kernel: [ 1177.028827] ath: phy0: Set HW Key >> Jan 15 08:43:44 wlanTS kernel: [ 1177.032695] NOISE/RSSI/SIGNAL for 04:f0:21:04:56:9e: -87/53/-34 >> Jan 15 08:43:44 wlanTS kernel: [ 1177.032710] ath: phy0: bmiss: 10 sleep: 15360 >> Jan 15 08:43:44 wlanTS kernel: [ 1177.032716] ath: phy0: next DTIM 106306560 >> Jan 15 08:43:44 wlanTS kernel: [ 1177.032717] ath: phy0: next beacon 106306560 >> Jan 15 08:43:44 wlanTS kernel: [ 1177.032718] ath: phy0: beacon period 15360 >> Jan 15 08:43:44 wlanTS kernel: [ 1177.032719] ath: phy0: DTIM period 15360 >> Jan 15 08:43:44 wlanTS kernel: [ 1177.032749] cfg80211: Found new beacon on frequency: 5180 MHz (Ch 36) on phy0 >> Jan 15 08:43:44 wlanTS kernel: [ 1177.032758] cfg80211: Pending regulatory request, waiting for it to be processed... >> Jan 15 08:43:44 wlanTS kernel: [ 1177.048561] NOISE/RSSI/SIGNAL for 04:f0:21:04:56:9e: -87/39/-48 >> Jan 15 08:43:44 wlanTS kernel: [ 1177.063921] NOISE/RSSI/SIGNAL for 04:f0:21:04:56:9e: -87/37/-50 >> Jan 15 08:43:44 wlanTS kernel: [ 1177.079283] NOISE/RSSI/SIGNAL for 04:f0:21:04:56:9e: -87/33/-54 > I can reproduce this issue too and this happens only once - right after > association. After association, running a background scan doesn't show any > problems. > > Sujith I have seen the wrong rssi in scan results but I just don't have yet have a proof on clean wireless testing. It seems that when I put a lot of printk I don't see the problem because maybe scanning/calibration/etc. is shifted more away. Anyway it's just a guess so I will dig further. Wojtek