From owner-freebsd-wireless@FreeBSD.ORG Tue Aug 9 13:23:01 2011 Return-Path: Delivered-To: freebsd-wireless@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 07EE3106564A; Tue, 9 Aug 2011 13:23:01 +0000 (UTC) (envelope-from adrian.chadd@gmail.com) Received: from mail-yw0-f54.google.com (mail-yw0-f54.google.com [209.85.213.54]) by mx1.freebsd.org (Postfix) with ESMTP id A46A48FC1F; Tue, 9 Aug 2011 13:23:00 +0000 (UTC) Received: by ywm39 with SMTP id 39so3994038ywm.13 for ; Tue, 09 Aug 2011 06:22:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=x57gDYx8wTpKwYLq99Z+RUGrrs2NDQ1fiAd1tXDB3qw=; b=iHg4Ld75dIO0+oknMITxtrjbYEDTQtjrzdp4LNnmzsXURK1flFDVAUKDl6rLEgdWw+ HzZwLT2xbmizwEYkcHCRkVP+NvX9eO2ag7guIDBJ6D/RzlLnw704wfc1sCQq8MN9fCua SxL0QP/ckpSHUNLkTNG3JzhQNXiLtiAmpMjlU= MIME-Version: 1.0 Received: by 10.150.95.21 with SMTP id s21mr1100080ybb.101.1312896179826; Tue, 09 Aug 2011 06:22:59 -0700 (PDT) Sender: adrian.chadd@gmail.com Received: by 10.151.26.14 with HTTP; Tue, 9 Aug 2011 06:22:59 -0700 (PDT) In-Reply-To: <417721050.20110809171807@serebryakov.spb.ru> References: <1151152206.20110808220720@serebryakov.spb.ru> <201108091332.16269.bschmidt@freebsd.org> <845369356.20110809163402@serebryakov.spb.ru> <201108091511.39031.bschmidt@freebsd.org> <417721050.20110809171807@serebryakov.spb.ru> Date: Tue, 9 Aug 2011 21:22:59 +0800 X-Google-Sender-Auth: sRV9qqAuMRmdG9buZzklOfP5yV8 Message-ID: From: Adrian Chadd To: Lev Serebryakov Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: freebsd-wireless@freebsd.org, Bernhard Schmidt Subject: Re: Bad host-vased AP performace -- and qouple of questions about FreeBSD WiFi stack tuning X-BeenThere: freebsd-wireless@freebsd.org X-Mailman-Version: 2.1.5 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, 09 Aug 2011 13:23:01 -0000 On 9 August 2011 21:18, Lev Serebryakov wrote: >> exported to user space (ifconfig). > =A0"ifconfig wlan0 list txpower" shows two limits for each channel > =A0like: > > =A0 Channel =A0 1 : 2412 MHz 30.0 reg 30 > > =A0but I'm not sure, is this meaningful. That's the configured regulatory limit. There's no way for the driver to say exactly what the maximum TX power is for each configured rate for the current channel. (Or, when we eventually support per-packet TPC, what the minimum/maximum TX power range is for each peer node.) That's a nice project for someone who'd like to get more familiar with net8= 0211. Adrian