Return-path: Received: from qw-out-2122.google.com ([74.125.92.26]:64821 "EHLO qw-out-2122.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751353AbYKDFcm (ORCPT ); Tue, 4 Nov 2008 00:32:42 -0500 Received: by qw-out-2122.google.com with SMTP id 3so1491875qwe.37 for ; Mon, 03 Nov 2008 21:32:40 -0800 (PST) Message-ID: (sfid-20081104_063303_175036_B626F6CD) Date: Tue, 4 Nov 2008 11:02:40 +0530 From: "Bharat Bhushan" To: "Johannes Berg" Subject: Re: No ProbeResp - assume out of range Cc: "Felix Fietkau" , "Luis R. Rodriguez" , "Luis R. Rodriguez" , "Tomas Winkler" , "Michael Buesch" , "linux-wireless@vger.kernel.org" , "Kalle Valo" In-Reply-To: <1225734605.3619.39.camel@johannes.berg> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 References: <43e72e890811021305k19e9a314i6400cd1a759b3d00@mail.gmail.com> <200811022303.54476.mb@bu3sch.de> <1ba2fa240811021442o178c98a1pa920b863b60d9293@mail.gmail.com> <43e72e890811021458h1444d350v33a5e5b984b76495@mail.gmail.com> <20081103002558.GA14153@tesla> <490F2B6C.9090002@openwrt.org> <1225734605.3619.39.camel@johannes.berg> Sender: linux-wireless-owner@vger.kernel.org List-ID: On Mon, Nov 3, 2008 at 11:20 PM, Johannes Berg wrote: > On Mon, 2008-11-03 at 17:48 +0100, Felix Fietkau wrote: >> Luis R. Rodriguez wrote: >> > OK I found the issue with ath5k, no beacons were being passed at all, I'll post >> > a patch. >> Why not configure the beacon miss interrupt instead of passing beacons to >> mac80211 in STA mode? That should save some battery on Laptops because it >> won't cause 10 extra wakeups every second. > > We have no way to indicate to mac80211 that the hw is watching beacons, > so that'd be equivalent to just dropping them. We've discussed such API, > and I hope somebody will implement it :) > > johannes > if we start dealing with beacons in NIC, i think this will impact roaming scenarios, beacouse in most of roaming algorithms signal strength of beacon received played a pivot rolef and ignoring this at NIC this will not allow client to take judicious decisions. bharat