Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932196AbVILUJl (ORCPT ); Mon, 12 Sep 2005 16:09:41 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932195AbVILUJl (ORCPT ); Mon, 12 Sep 2005 16:09:41 -0400 Received: from magic.adaptec.com ([216.52.22.17]:39046 "EHLO magic.adaptec.com") by vger.kernel.org with ESMTP id S932191AbVILUJj (ORCPT ); Mon, 12 Sep 2005 16:09:39 -0400 Message-ID: <4325E077.3000103@adaptec.com> Date: Mon, 12 Sep 2005 16:09:27 -0400 From: Luben Tuikov User-Agent: Mozilla Thunderbird 1.0.6 (X11/20050716) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Patrick Mansfield CC: James Bottomley , Douglas Gilbert , Christoph Hellwig , Luben Tuikov , Linux Kernel Mailing List , SCSI Mailing List Subject: Re: [PATCH 2.6.13 5/14] sas-class: sas_discover.c Discover process (end devices) References: <1126308304.4799.45.camel@mulgrave> <20050910024454.20602.qmail@web51613.mail.yahoo.com> <20050911094656.GC5429@infradead.org> <43251D8C.7020409@torque.net> <1126537041.4825.28.camel@mulgrave> <20050912164548.GB11455@us.ibm.com> In-Reply-To: <20050912164548.GB11455@us.ibm.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 12 Sep 2005 20:09:33.0461 (UTC) FILETIME=[E4365450:01C5B7D5] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1072 Lines: 26 On 09/12/05 12:45, Patrick Mansfield wrote: > On Mon, Sep 12, 2005 at 09:57:21AM -0500, James Bottomley wrote: > > >>be free to increase it if necessary. Note: you do actually need either >>an array with more than two levels of nesting actually to need the >>increase and no-one actually seems to have one of these yet. > > > That is not correct, I posted before on this, the address method is in the > high bits of the 8 byte LUN and tells how to "interpret" the LUN value. > You can't convert from an int to 8 byte LUN (without any other > information) and set these bits. See SAM-4 in (or near) section 4.9.7. > > So some storage devices that want to use addressing methods other than 00b > don't because we do not have 8 byte LUN support in linux, and then we have > other problems because of this. All true. Luben - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/