Return-path: Received: from mail-gw0-f46.google.com ([74.125.83.46]:54919 "EHLO mail-gw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752476Ab1G2R4k (ORCPT ); Fri, 29 Jul 2011 13:56:40 -0400 Received: by gwaa12 with SMTP id a12so657496gwa.19 for ; Fri, 29 Jul 2011 10:56:40 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: <4E32F338.8040901@openwrt.org> References: <1311960137-25420-1-git-send-email-helmut.schaa@googlemail.com> <1311960137-25420-2-git-send-email-helmut.schaa@googlemail.com> <4E32F338.8040901@openwrt.org> Date: Fri, 29 Jul 2011 19:56:39 +0200 Message-ID: (sfid-20110729_195731_389841_D1589CD9) Subject: Re: [PATCH 2/2] mac80211: Always send EAPOL frames at lowest rate From: Helmut Schaa To: Felix Fietkau Cc: John Linville , linux-wireless@vger.kernel.org, Johannes Berg Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Fri, Jul 29, 2011 at 7:51 PM, Felix Fietkau wrote: > On 2011-07-29 7:22 PM, Helmut Schaa wrote: >> >> Since EAPOL frames are normal data frames they are treated by the rate >> control algorithm as such. Thus it can happen that the rate control >> algorithm chooses an inappropriate rate (minstrel_ht uses MCS rates for >> example) for the 4-way handshake and under low signal conditions the >> handshake may time out. >> >> To fix this issue always treat EAPOL frames the same as management >> frames and send them with the lowest available rate. > > Have you tried preventing minstrel_ht from using EAPOL frames for probing > different rates instead of forcing it to use the lowest rate? Nope. I'll give it a try soon. Thanks, Helmut