Return-path: Received: from smtp-out06.msg.oleane.net ([62.161.7.4]:37724 "EHLO smtp-out06.msg.oleane.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755334Ab3JJQJd convert rfc822-to-8bit (ORCPT ); Thu, 10 Oct 2013 12:09:33 -0400 Received: from smtp03.msg.oleane.net (smtp03.mail.priv [172.17.20.112]) by smtp-out06.msg.oleane.net with ESMTP id r9AG9VTQ007376 for ; Thu, 10 Oct 2013 18:09:31 +0200 Received: from acksys.fr ([195.6.104.67]) (authenticated) by smtp03.msg.oleane.net (MTA) with ESMTP id r9AFn1Lo006088 for ; Thu, 10 Oct 2013 17:49:02 +0200 Subject: ATH9K: CST interrupt issue Date: Thu, 10 Oct 2013 17:49:00 +0200 MIME-Version: 1.0 Message-ID: <773DB8A82AB6A046AE0195C68612A3190164B494@sbs2003.acksys.local> (sfid-20131010_180942_600576_E328D43E) Content-Type: text/plain; charset="iso-8859-1" From: "Cedric VONCKEN" To: Sender: linux-wireless-owner@vger.kernel.org List-ID: I using the DNMA-H5 from unex and compat 2013-04-16. If the equipment with this card is placed in 30?C environment, with iperf I can send 150 Mbit/s. If the equipment with this card is placed in 0?C environment my throughput is not stable and is around 40Mbit/s. In this condition, I receive some CST interrupt burst. If I correctly understand the ATH9K driver code, when this interruption occur the driver only increase the interrupt counter. Have you any information on this interrupt ? I googled but I don't found any information. Do you know if the driver need a specific action to handle it ? If yes, could you give me some pointer to do that ? How I can increase the timeout Value ? If I tried with other Wireless card (DNMA-83 from unex for example) I have not this problem. Any help will be appreciated. Best regards. Cedric Voncken