From owner-freebsd-scsi  Mon Feb  3 11:12:35 1997
Return-Path: <owner-freebsd-scsi>
Received: (from root@localhost)
          by freefall.freebsd.org (8.8.5/8.8.5) id LAA14312
          for freebsd-scsi-outgoing; Mon, 3 Feb 1997 11:12:35 -0800 (PST)
Received: from sendero.i-connect.net ([206.190.144.100])
          by freefall.freebsd.org (8.8.5/8.8.5) with ESMTP id LAA14297;
          Mon, 3 Feb 1997 11:12:22 -0800 (PST)
Received: (from shimon@localhost)
          by sendero.i-connect.net (8.8.5/8.8.4)
	  id MAA01626; Mon, 3 Feb 1997 12:07:37 -0800 (PST)
Message-ID: <XFMail.970203120737.Shimon@i-Connect.Net>
X-Mailer: XFMail 1.1-alpha [p0] on FreeBSD
Content-Type: text/plain; charset=iso-8859-8
Content-Transfer-Encoding: 8bit
MIME-Version: 1.0
In-Reply-To: <199702010403.XAA02913@dyson.iquest.net>
Date: Mon, 03 Feb 1997 11:35:38 -0800 (PST)
Organization: iConnect Corp.
From: Simon Shapiro <Shimon@i-Connect.Net>
To: "John S. Dyson" <toor@dyson.iquest.net>
Subject: Re: XXXminpys question
Cc: joerg_wunsch@uriah.heep.sax.de, freebsd-scsi@freebsd.org,
        dyson@freebsd.org
Sender: owner-freebsd-scsi@freebsd.org
X-Loop: FreeBSD.org
Precedence: bulk


Hi John S. Dyson;  On 01-Jan-97 you wrote: 
> > 
> > 
> > Hi John S. Dyson;  On 31-Jan-97 you wrote: 
> > > It will require some restructuring of the pbuf (physical I/O buffer)
> > > code, but isn't that bad to do.  It has been in my queue for a while.
> > > If the driver-savvy people can work out a way to query the driver for
> > > the maximum I/O size, I can/will implement the upper level changes.
> > > 
> > > John Dyson
> > 
> > Is this not the purpose of the xxx_minphys entry point to the driver?
> > 
> > Simon
> > 
> Yes, except is that indeed the *right* way to do it?  I am suggesting
> that we review that choice first.

Coming to think about it, this really describes max_transfer, not min_phys.
No?

Simon