Return-path: Received: from mail-fx0-f212.google.com ([209.85.220.212]:34763 "EHLO mail-fx0-f212.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753094AbZFRMcQ (ORCPT ); Thu, 18 Jun 2009 08:32:16 -0400 Received: by fxm8 with SMTP id 8so1000534fxm.37 for ; Thu, 18 Jun 2009 05:32:18 -0700 (PDT) To: Johannes Berg Cc: Balaji Ravindran , "linux-wireless\@vger.kernel.org" , Mircea Gherzan Subject: Re: Proposal enquiry for Wireless Roaming feature enhancement References: <4A38672F.9090904@w1an.in> <87hbyfmlds.fsf@litku.valot.fi> <1245231411.20613.3.camel@johannes.local> From: Kalle Valo Date: Thu, 18 Jun 2009 15:32:14 +0300 In-Reply-To: <1245231411.20613.3.camel@johannes.local> (Johannes Berg's message of "Wed\, 17 Jun 2009 11\:36\:51 +0200") Message-ID: <87bpol90z5.fsf@litku.valot.fi> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-wireless-owner@vger.kernel.org List-ID: Johannes Berg writes: > On Wed, 2009-06-17 at 09:20 +0300, Kalle Valo wrote: >> Balaji Ravindran writes: >> >> > Is anyone working on this feature enhancement(i mean wireless roaming)? >> > I saw it on the to-do list, and that Mircea had proposed it for GSoC. I >> > thought i shall dig into it, but just wanted to know if anyone's >> > already being involved and actively working on it. >> >> Nobody is currently working on it AFAIK. We are planning to talk about >> roaming at Berlin next week and I will have a brief overview to start >> the dicussion, but that's about it. > > Yeah, I don't think anybody is working on it. That's my understanding as well. > FWIW, what we need in the kernel/drivers is, I think > > 1) signals for significant signal change (offloaded to firmware for > beacons while no traffic is flowing) I agree. Also I think we need to have an user space interface to configure the threshold value. > 2) a way of telling userspace whether or not it has to handle > roaming, now that new cards are showing up (iwm) that can handle it > themselves What about older fullmac cards, do they support roaming in hardware? > and probably some more. I don't suppose you will be in Berlin, but it > would probably be helpful for you to wait for that discussion to have > taken place before working on it, because then we'll have at least a > plan of where we want to see this go. I agree. I'm planning to write a small report of our roaming discussion. Maybe we can implement this finally :) -- Kalle Valo