From owner-freebsd-scsi  Sun Mar  3 13:19: 1 2002
Delivered-To: freebsd-scsi@freebsd.org
Received: from sasami.jurai.net (sasami.jurai.net [66.92.160.223])
	by hub.freebsd.org (Postfix) with ESMTP id 1508F37B405
	for <freebsd-scsi@FreeBSD.ORG>; Sun,  3 Mar 2002 13:18:58 -0800 (PST)
Received: from sasami.jurai.net (sasami.jurai.net [66.92.160.223])
	by sasami.jurai.net (8.11.6/8.11.6) with ESMTP id g23LIsM43397;
	Sun, 3 Mar 2002 16:18:54 -0500 (EST)
	(envelope-from winter@jurai.net)
Date: Sun, 3 Mar 2002 16:18:54 -0500 (EST)
From: "Matthew N. Dodd" <winter@jurai.net>
To: "Justin T. Gibbs" <gibbs@scsiguy.com>
Cc: =?ISO-8859-1?Q?G=E9rard_Roudier?= <groudier@free.fr>,
	<freebsd-scsi@FreeBSD.ORG>
Subject: Re: SCSI driver problem: 'sym' fails, 'ahc' works. 
In-Reply-To: <200203032115.g23LFnI02625@aslan.scsiguy.com>
Message-ID: <20020303161602.I95839-100000@sasami.jurai.net>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Sender: owner-freebsd-scsi@FreeBSD.ORG
Precedence: bulk
List-ID: <freebsd-scsi.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-scsi>
List-Unsubscribe: <mailto:majordomo@FreeBSD.ORG?subject=unsubscribe%20freebsd-scsi>
X-Loop: FreeBSD.org

On Sun, 3 Mar 2002, Justin T. Gibbs wrote:
> Its not really clear to me why one driver works and the other does not.
> Both should be flagging the overrun as an error.  Perhaps in 3.4, the
> ahc driver was broken in this regard?  Does a more recent ahc driver
> still work?

I've not yet tried the drives with a recent version of 'ahc'.  The
hardware is kinda buried in a rack right now.

If I had to guess at the difference I'd say that this bit of code from
sym_hipd.c is the reason for the difference:

static void sym_sir_bad_scsi_status(hcb_p np, int num, ccb_p cp)
{
...
        /*
         *  Now deal with the SCSI status.
         */
        switch(s_status) {
...
        case S_TERMINATED:
        case S_CHECK_COND:
                /*
                 *  If we get an SCSI error when requesting sense, give up.
                 */
                if (h_flags & HF_SENSE) {
			sym_complete_error (np, cp);
			break;
		}
		...

I'm mostly guessing at this point though.

-- 
| Matthew N. Dodd  | '78 Datsun 280Z | '75 Volvo 164E | FreeBSD/NetBSD  |
| winter@jurai.net |       2 x '84 Volvo 245DL        | ix86,sparc,pmax |
| http://www.jurai.net/~winter |  For Great Justice!  | ISO8802.5 4ever |


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