From owner-freebsd-hardware@freebsd.org  Fri Nov  2 13:36:58 2018
Return-Path: <owner-freebsd-hardware@freebsd.org>
Delivered-To: freebsd-hardware@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id A710E10F7211
 for <freebsd-hardware@mailman.ysv.freebsd.org>;
 Fri,  2 Nov 2018 13:36:58 +0000 (UTC)
 (envelope-from frank2@fjl.co.uk)
Received: from bs1.fjl.org.uk (bs1.fjl.org.uk [84.45.41.196])
 (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits))
 (Client CN "bs1.fjl.org.uk", Issuer "bs1.fjl.org.uk" (not verified))
 by mx1.freebsd.org (Postfix) with ESMTPS id 3F0C16AEA2
 for <freebsd-hardware@freebsd.org>; Fri,  2 Nov 2018 13:36:57 +0000 (UTC)
 (envelope-from frank2@fjl.co.uk)
Received: from roundcube.fjl.org.uk (localhost [127.0.0.1])
 by bs1.fjl.org.uk (8.14.4/8.14.4) with ESMTP id wA2DaeUt073497
 for <freebsd-hardware@freebsd.org>; Fri, 2 Nov 2018 13:36:44 GMT
 (envelope-from frank2@fjl.co.uk)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8;
 format=flowed
Content-Transfer-Encoding: 7bit
Date: Fri, 02 Nov 2018 13:36:40 +0000
From: Frank Leonhardt <frank2@fjl.co.uk>
To: freebsd-hardware@freebsd.org
Subject: Fwd: Re: When is sataIII actually =?UTF-8?Q?sataIII=3F?=
Organization: FJL Microsystems
Message-ID: <a38543eb7eb5b774033f791c8e1262b4@roundcube.fjl.org.uk>
X-Sender: frank2@fjl.co.uk
User-Agent: Roundcube Webmail/0.9.2
X-BeenThere: freebsd-hardware@freebsd.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: General discussion of FreeBSD hardware <freebsd-hardware.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-hardware>, 
 <mailto:freebsd-hardware-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-hardware/>
List-Post: <mailto:freebsd-hardware@freebsd.org>
List-Help: <mailto:freebsd-hardware-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-hardware>, 
 <mailto:freebsd-hardware-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 02 Nov 2018 13:36:58 -0000

On Thu, Nov 1, 2018, at 8:45 AM, spamless@mail-on.us wrote:
> I have another Sata 3 drive on the second Sata 3 port, that FreeBSD
> actually treats as what it is:
> ada1 at ahcich1 bus 0 scbus1 target 0 lun 0
> ada1: <ST3000DM001-1CH166 CC47> ACS-2 ATA SATA 3.x device
> ada1: Serial Number W1F55VT9
> ada1: 600.000MB/s transfers (SATA 3.x, UDMA6, PIO 8192bytes)
> ada1: Command Queueing enabled
> ada1: 2861588MB (5860533168 512 byte sectors)
> ada1: quirks=0x1<4K>
> 
> note the "quirks" - is that good, or bad?
> 

Forgot to mention (and then the power went off) - the quirks mechanism 
is to allow work-arounds for flawed implementations of protocols from 
specific devices. For example, if a particular drive always returns the 
same serial number to satisfy the protocol, it's a quirk and the driver 
won't make use of the query serial number command for that type of 
drive.

Regards, Frank.