From owner-freebsd-stable@FreeBSD.ORG  Thu Mar 28 15:29:27 2013
Return-Path: <owner-freebsd-stable@FreeBSD.ORG>
Delivered-To: freebsd-stable@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by hub.freebsd.org (Postfix) with ESMTP id BC47AE3A;
 Thu, 28 Mar 2013 15:29:27 +0000 (UTC)
 (envelope-from scottl@samsco.org)
Received: from pooker.samsco.org (pooker.samsco.org [168.103.85.57])
 by mx1.freebsd.org (Postfix) with ESMTP id 8A858EA4;
 Thu, 28 Mar 2013 15:29:26 +0000 (UTC)
Received: from [127.0.0.1] (Scott4long@pooker.samsco.org [168.103.85.57])
 (authenticated bits=0)
 by pooker.samsco.org (8.14.5/8.14.5) with ESMTP id r2SFTOXL046107;
 Thu, 28 Mar 2013 09:29:24 -0600 (MDT)
 (envelope-from scottl@samsco.org)
Content-Type: text/plain; charset=us-ascii
Mime-Version: 1.0 (Mac OS X Mail 6.3 \(1503\))
Subject: Re: Any objections/comments on axing out old ATA stack?
From: Scott Long <scottl@samsco.org>
In-Reply-To: <CAJ-Vmon-8FaLa-=F=Z3dL85FPoRr+p3kt+tr1fo7AkOV9hhyCA@mail.gmail.com>
Date: Thu, 28 Mar 2013 09:29:24 -0600
Content-Transfer-Encoding: quoted-printable
Message-Id: <969B2F75-EBBF-40F3-B805-323E1BFAD7F9@samsco.org>
References: <51536306.5030907@FreeBSD.org>
 <CAJ-Vmon-8FaLa-=F=Z3dL85FPoRr+p3kt+tr1fo7AkOV9hhyCA@mail.gmail.com>
To: Adrian Chadd <adrian@freebsd.org>
X-Mailer: Apple Mail (2.1503)
X-Spam-Status: No, score=-50.0 required=3.8 tests=ALL_TRUSTED,
 T_RP_MATCHES_RCVD autolearn=unavailable version=3.3.0
X-Spam-Checker-Version: SpamAssassin 3.3.0 (2010-01-18) on pooker.samsco.org
Cc: Alexander Motin <mav@freebsd.org>, freebsd-current@freebsd.org,
 freebsd-stable@freebsd.org
X-BeenThere: freebsd-stable@freebsd.org
X-Mailman-Version: 2.1.14
Precedence: list
List-Id: Production branch of FreeBSD source code <freebsd-stable.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-stable>,
 <mailto:freebsd-stable-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-stable>
List-Post: <mailto:freebsd-stable@freebsd.org>
List-Help: <mailto:freebsd-stable-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-stable>,
 <mailto:freebsd-stable-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 28 Mar 2013 15:29:27 -0000


On Mar 27, 2013, at 6:43 PM, Adrian Chadd <adrian@freebsd.org> wrote:

> My main concern with the new stuff is that it requires CAM and that's
> reasonably big compared to the standalone ATA code.
>=20

=46rom a code execution standpoint?  No, it's not.

> It'd be nice if we could slim down the CAM stack a bit first; it makes
> embedding it on the smaller devices really freaking painful.
>=20

=46rom a code segment size standpoint, there's definitely some stuff =
that should be
made modular and optional.

Scott