From owner-freebsd-arch@FreeBSD.ORG  Sun Jan 29 16:21:54 2012
Return-Path: <owner-freebsd-arch@FreeBSD.ORG>
Delivered-To: freebsd-arch@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id A3635106564A;
	Sun, 29 Jan 2012 16:21:54 +0000 (UTC) (envelope-from stb@lassitu.de)
Received: from gilb.zs64.net (gilb.zs64.net [IPv6:2001:470:1f0b:105e::1ea])
	by mx1.freebsd.org (Postfix) with ESMTP id 585B68FC1E;
	Sun, 29 Jan 2012 16:21:54 +0000 (UTC)
Received: by gilb.zs64.net (Postfix, from stb@lassitu.de) id 7352827D58;
	Sun, 29 Jan 2012 16:21:53 +0000 (UTC)
Mime-Version: 1.0 (Apple Message framework v1251.1)
Content-Type: text/plain; charset=us-ascii
From: Stefan Bethke <stb@lassitu.de>
In-Reply-To: <20120129161938.GD39861@alchemy.franken.de>
Date: Sun, 29 Jan 2012 17:21:52 +0100
Content-Transfer-Encoding: quoted-printable
Message-Id: <5785C7EF-B886-459B-911C-870A4594AC4C@lassitu.de>
References: <20120122195130.360261ce.ray@freebsd.org>
	<CAJ-VmokTh2q0ZH=kwU6GzJm5Mr4k7geJiFsoX_A9hcLhMZNxsg@mail.gmail.com>
	<0E31FEC4-963D-4AC8-9AB7-EE6D6D7F86EE@lassitu.de>
	<CAJ-Vmo=GRKRf+YsFqNm9d_T3Tq583uV_pabMV6ozuaytSRLivg@mail.gmail.com>
	<20120129001251.7e4cfe83.ray@ddteam.net>
	<CACVs6=-U9rr7cpeJ+VUgP3Xq1yRB=Xk1GjuzEOuXiEUoqGFq_Q@mail.gmail.com>
	<DBAB0C5C-5B2D-4430-8096-9E4DC7233961@bsdimp.com>
	<81B88904-6894-4AC3-80F3-2866216E494B@lassitu.de>
	<20120129153159.GA44362@alchemy.franken.de>
	<3B5A749B-9553-4152-9441-3F343BA219FB@lassitu.de>
	<20120129161938.GD39861@alchemy.franken.de>
To: Marius Strobl <marius@alchemy.franken.de>
X-Mailer: Apple Mail (2.1251.1)
Cc: FreeBSD Net <freebsd-net@freebsd.org>, Aleksandr Rybalko <ray@ddteam.net>,
	Adrian Chadd <adrian@freebsd.org>, FreeBSD-arch <freebsd-arch@freebsd.org>
Subject: Re: Ethernet Switch Framework
X-BeenThere: freebsd-arch@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Discussion related to FreeBSD architecture <freebsd-arch.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-arch>,
	<mailto:freebsd-arch-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-arch>
List-Post: <mailto:freebsd-arch@freebsd.org>
List-Help: <mailto:freebsd-arch-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-arch>,
	<mailto:freebsd-arch-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sun, 29 Jan 2012 16:21:54 -0000


Am 29.01.2012 um 17:19 schrieb Marius Strobl:

>>> We really need
>>> to find a proper way of dealing with the constraints of the =
embedded-
>>> world rather than to sprinkle hacks all over the place.
>>=20
>> Why is the above is less of a hack than making the ordering in nexus =
configurable through a hint?
>>=20
>=20
> If it's generally true that driver A must be attached before driver
> B as B has a dependency on A than this should be expressed and
> configured in the drivers themselves and not need an extra hint to
> configure it at the runtime of the kernel.

Except that it is not generally true, but only in specific =
configurations.  Other boards have other combinations of devices.  The =
Atheros family of switches is available both embedded into certain SoC =
as well as separate silicon.


Stefan

--=20
Stefan Bethke <stb@lassitu.de>   Fon +49 151 14070811