From owner-freebsd-current@FreeBSD.ORG  Wed Dec 29 14:46:04 2004
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Delivered-To: freebsd-current@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id BB55C16A4CE
	for <current@freebsd.org>; Wed, 29 Dec 2004 14:46:04 +0000 (GMT)
Received: from wproxy.gmail.com (wproxy.gmail.com [64.233.184.193])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 4990F43D5E
	for <current@freebsd.org>; Wed, 29 Dec 2004 14:46:04 +0000 (GMT)
	(envelope-from peadar.edwards@gmail.com)
Received: by wproxy.gmail.com with SMTP id 58so24552wri
        for <current@freebsd.org>; Wed, 29 Dec 2004 06:46:03 -0800 (PST)
DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws;
	s=beta; d=gmail.com;
	h=received:message-id:date:from:reply-to:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:references;
	b=FBJFNkLVpYTdz3CoajUMxm8jvMx3RDGh4yeLRxduen9+UPtjoJnkdFuvXFs1wXRmhwcYNK7V3ws8iNNM6XDiYbkuKp9avJ+rBTMNbzAs67vuAjN9ackxlDtn+G5NE3URGht7iDoBBXQvu2tNl/IC8MyHMQXNoZR5PkEVm4SNDFo=
Received: by 10.54.53.76 with SMTP id b76mr173644wra;
        Wed, 29 Dec 2004 06:46:03 -0800 (PST)
Received: by 10.54.57.76 with HTTP; Wed, 29 Dec 2004 06:46:03 -0800 (PST)
Message-ID: <34cb7c840412290646f4392bd@mail.gmail.com>
Date: Wed, 29 Dec 2004 14:46:03 +0000
From: Peter Edwards <peadar.edwards@gmail.com>
To: =?ISO-8859-1?Q?Dag-Erling_Sm=F8rgrav?= <des@des.no>
In-Reply-To: <xzpwtv1te7n.fsf@dwp.des.no>
Mime-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable
References: <xzpu0qa2pzi.fsf@dwp.des.no>
	 <34cb7c840412290444497d2dd7@mail.gmail.com>
	 <xzpwtv1te7n.fsf@dwp.des.no>
cc: "Li-Lun Wang \(Leland Wang\)" <llwang@infor.org>
cc: current@freebsd.org
Subject: Re: fxp EEPROM checksum mismatch in recent -CURRENT
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
Reply-To: peadar@freebsd.org
List-Id: Discussions about the use of FreeBSD-current
	<freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 29 Dec 2004 14:46:04 -0000

Actually, looking at:
http://www.intel.com/technology/IAPC/downloads/pm1_1.pdf
If I'm reading it right, the delays for each state change need to be
implemented as per the "minimum system software guaranteed delays"
column in table 18 (in section 5.6.1, on page 50)

I'll fix up the patch to implement this, and post it for review if no
one gets there before me.

On Wed, 29 Dec 2004 14:40:28 +0100, Dag-Erling Sm=F8rgrav <des@des.no> wrot=
e:
> Peter Edwards <peadar.edwards@gmail.com> writes:
> > Tracing further, it looks like on waking up from D3 into  D0, the fxp
> > device needs some time to settle, or the config write to restore the
> > BAR doesn't "take". That explains why it works if it's dragged in from
> > the loader: the device probes without ever going to sleep.
>=20
> That explains why the problem disappeared when I compiled fxp into the
> kernel.  Great detective work!  I'll test your patch and let you know
> if it works for me.
>=20
> DES
> --
> Dag-Erling Sm=F8rgrav - des@des.no
>