From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from c60.cesmail.net ([216.154.195.49]:42658 "EHLO c60.cesmail.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757595Ab0BQWwN (ORCPT ); Wed, 17 Feb 2010 17:52:13 -0500 Subject: Re: [PATCH v3] mac80211: deprecate RX status noise From: Pavel Roskin To: "Luis R. Rodriguez" Cc: Benoit PAPILLAULT , Johannes Berg , John Linville , linux-wireless In-Reply-To: <43e72e891002171429j7f47c86bqd4374bf07b8979de@mail.gmail.com> References: <1266437114.23447.0.camel@jlt3.sipsolutions.net> <1266438137.23447.1.camel@jlt3.sipsolutions.net> <1266438446.23447.2.camel@jlt3.sipsolutions.net> <4B7C561C.70702@free.fr> <43e72e891002171429j7f47c86bqd4374bf07b8979de@mail.gmail.com> Content-Type: text/plain Date: Wed, 17 Feb 2010 17:51:58 -0500 Message-Id: <1266447118.12365.21.camel@mj> Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Wed, 2010-02-17 at 14:29 -0800, Luis R. Rodriguez wrote: > > Being per packet or global, I'm not an RF engineer to say what's best, but > > even if it is global, "last_noise" would still be useful as "global noise > > when the last packets was received from this node". > > If anything it should be per center freq. The noise value will be missed. It's useful to see the signal to noise ratio. I have little trust to the absolute noise values, but I know that the connection is bad if signal is just 3 dBm above the noise measured by the same card with the same antenna on the same channel. Maybe it would be better to remove per-packet noise only when the "next generation noise" is implemented? It could be a batch of patches. -- Regards, Pavel Roskin