From owner-freebsd-stable  Thu Dec 13 20:29:29 2001
Delivered-To: freebsd-stable@freebsd.org
Received: from root.com (root.com [209.102.106.178])
	by hub.freebsd.org (Postfix) with ESMTP id 216A237B41B
	for <freebsd-stable@FreeBSD.ORG>; Thu, 13 Dec 2001 20:29:18 -0800 (PST)
Received: (from dg@localhost)
	by root.com (8.11.2/8.11.2) id fBE4L6a79198;
	Thu, 13 Dec 2001 20:21:06 -0800 (PST)
	(envelope-from dg)
Date: Thu, 13 Dec 2001 20:21:06 -0800
From: David Greenman <dg@root.com>
To: Dimitry Andric <dim@xs4all.nl>
Cc: Sergey Matveychuk <sem@ciam.ru>,
	Jonathan Lemon <jlemon@flugsvamp.com>, freebsd-stable@FreeBSD.ORG
Subject: Re: fxp half-duplex problemm
Message-ID: <20011213202106.B78956@nexus.root.com>
References: <local.mail.freebsd-stable/5.1.0.14.0.20011210162739.01c08a50@marble.sentex.ca> <200112122035.fBCKZBJ62726@prism.flugsvamp.com> <002901c183c9$659763d0$0a2da8c0@sem> <20011213102230.A75383@nexus.root.com> <16453339468.20011214045827@xs4all.nl> <20011213200046.A78956@nexus.root.com> <18354777165.20011214052224@xs4all.nl>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <18354777165.20011214052224@xs4all.nl>; from dim@xs4all.nl on Fri, Dec 14, 2001 at 05:22:24AM +0100
Sender: owner-freebsd-stable@FreeBSD.ORG
Precedence: bulk
List-ID: <freebsd-stable.FreeBSD.ORG>
List-Archive: <http://docs.freebsd.org/mail/> (Web Archive)
List-Help: <mailto:majordomo@FreeBSD.ORG?subject=help> (List Instructions)
List-Subscribe: <mailto:majordomo@FreeBSD.ORG?subject=subscribe%20freebsd-stable>
List-Unsubscribe: <mailto:majordomo@FreeBSD.ORG?subject=unsubscribe%20freebsd-stable>
X-Loop: FreeBSD.ORG

>Well, in the case of fxp(4), the man page is quite clear:
>
>     The fxp driver supports the following media options:
>
>     full-duplex           Set full duplex operation
>
>(end of list)
>
>It doesn't really make sense to have separate options for half and
>full duplex, because they are mutually exclusive anyway. So one of
>them was dropped. I'm not sure, but it seems to be the case with all
>NIC drivers using the common miibus code.

   I agree that the two options are mutually exclusive, but I don't agree
that it doesn't make sense to have both. It's not clear if there is a default
or what it defaults to or when such a default is relevant. There needs to
be a "half-duplex" option to make this explicitly clear in the configuration.

-DG

David Greenman
Co-founder, The FreeBSD Project - http://www.freebsd.org
President, TeraSolutions, Inc. - http://www.terasolutions.com
Pave the road of life with opportunities.

To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-stable" in the body of the message