From owner-freebsd-wireless@FreeBSD.ORG Tue Apr 8 10:47:18 2014 Return-Path: Delivered-To: freebsd-wireless@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id A74564F7; Tue, 8 Apr 2014 10:47:18 +0000 (UTC) Received: from cell.glebius.int.ru (glebius.int.ru [81.19.69.10]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "cell.glebius.int.ru", Issuer "cell.glebius.int.ru" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 270641160; Tue, 8 Apr 2014 10:47:17 +0000 (UTC) Received: from cell.glebius.int.ru (localhost [127.0.0.1]) by cell.glebius.int.ru (8.14.8/8.14.8) with ESMTP id s38AkoRc033330 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Tue, 8 Apr 2014 14:46:50 +0400 (MSK) (envelope-from glebius@FreeBSD.org) Received: (from glebius@localhost) by cell.glebius.int.ru (8.14.8/8.14.8/Submit) id s38AkoVo033329; Tue, 8 Apr 2014 14:46:50 +0400 (MSK) (envelope-from glebius@FreeBSD.org) X-Authentication-Warning: cell.glebius.int.ru: glebius set sender to glebius@FreeBSD.org using -f Date: Tue, 8 Apr 2014 14:46:50 +0400 From: Gleb Smirnoff To: Adrian Chadd Subject: Re: iwn(4) in -HEAD supporting Centrino Wireless-N 135 Message-ID: <20140408104650.GN44326@FreeBSD.org> References: <530EE7F4.3080903@shurik.kiev.ua> <530EEEA5.4090306@shurik.kiev.ua> <20140228230705.GA28290@syn.pertho.net> <20140403100207.GA23640@syn.pertho.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) Cc: Tom Murphy , freebsd-current , "freebsd-wireless@freebsd.org" X-BeenThere: freebsd-wireless@freebsd.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: "Discussions of 802.11 stack, tools device driver development." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 08 Apr 2014 10:47:18 -0000 Adrian, On Thu, Apr 03, 2014 at 04:42:07PM -0700, Adrian Chadd wrote: A> I've had no time to continue looking at this, I'm sorry. A> A> I'm very overworked and I'm not able to be both the net80211, ath and A> iwn maintainer given how much actual attention they all require. A> Someone has to step up and take command of the iwn code. I must admit that right now iwn(4) is in much worse shape than it was a year ago. :( And the fact you abandon it in current shape is very unpleasant. I started to use laptops with iwn(4) about 3 years ago, and I always track head on my laptop. My connectivity was perfect for the first two years. But for the last year the situation is getting worse and worse. Since you were actively hacking on iwn(4), I decided to keep calm an wait for you to achieve your goals, only then complain. Now you abandon it. What hurts me right now: - The overall network performance is extremely bad. Doing an scp(1) from/to a box, that is on the same LAN I am achieving 30 Kb/s with long stalls. For the last couple of months I am moving larger files to my laptop with help of a USB memstick. - When I actually do run bulk upload/download via iwn(4), the entire office WiFi goes almost dead. My colleagues can't skype while I am copying a kernel file from my laptop to other close box, and copying lasts more than a minute (see above). Actually, not only WiFi is deafened by current iwn(4), it looks like entire 2.4GHz band is noised, because my wireless mouse gets very laggy and lossy during any bulk activity via iwn(4). - Even tiny traffic volume experiences packet loss. Right now I'm typing this via ssh, and sometimes I feel packet loss in the session. Note that my hardware haven't changed at all during last year. Only version of FreeBSD. Right now I have strong desire to update my sources of dev/iwn to early 2013, get it compilable and work with that. -- Totus tuus, Glebius.