From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail.candelatech.com ([208.74.158.172]:59426 "EHLO ns3.lanforge.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751255Ab2HTUYu (ORCPT ); Mon, 20 Aug 2012 16:24:50 -0400 Received: from [192.168.100.111] (firewall.candelatech.com [70.89.124.249]) (authenticated bits=0) by ns3.lanforge.com (8.14.2/8.14.2) with ESMTP id q7KKOnP2006902 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Mon, 20 Aug 2012 13:24:49 -0700 Message-ID: <50329D11.9030405@candelatech.com> (sfid-20120820_222455_020257_42082CDF) Date: Mon, 20 Aug 2012 13:24:49 -0700 From: Ben Greear MIME-Version: 1.0 To: "linux-wireless@vger.kernel.org" Subject: Issue with ath9k and tx/rx chainmask: 3x3 doesn't work with mask of 0x1. Content-Type: text/plain; charset=ISO-8859-1; format=flowed Sender: linux-wireless-owner@vger.kernel.org List-ID: I am trying to test out an attenuator. For now, I have only a single attenuator, so I set tx and rx chainmask to 0x1 on both AP and Station machine. I then connected channel 0 on the two machines together through the attenuator. I have two station interfaces on the station machine. They both seem to associate OK, but they cannot receive dhcp responses. It *seems* that broadcast packets may go through fine. If I force the rate down to 1x1 or 2x2 MIMO (or force disable /n and just use /a), then it appears to work fine. Nics are WPEA-127n (AR9380). Kernel is 3.5.1+ on AP, 3.5.2+ on station machine. I can see why forcing it down to 1x1 might work around some issue, but I find it funny that 2x2 works while 3x3 does not. Thanks, Ben -- Ben Greear Candela Technologies Inc http://www.candelatech.com