From mboxrd@z Thu Jan 1 00:00:00 1970 From: Luben Tuikov Subject: Re: [RFC] SAS domain layout for Linux sysfs Date: Tue, 26 Apr 2005 11:18:07 -0400 Message-ID: <426E5BAF.4040003@adaptec.com> References: <425D392F.2080702@adaptec.com> <20050424111908.GA23010@infradead.org> <426D1572.70508@adaptec.com> <20050425161411.GA11938@infradead.org> <426D2723.8070308@adaptec.com> <20050425181831.GA14190@infradead.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Return-path: Received: from magic.adaptec.com ([216.52.22.17]:18903 "EHLO magic.adaptec.com") by vger.kernel.org with ESMTP id S261568AbVDZPVQ (ORCPT ); Tue, 26 Apr 2005 11:21:16 -0400 In-Reply-To: <20050425181831.GA14190@infradead.org> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: Christoph Hellwig Cc: SCSI Mailing List , Linux Kernel Mailing List , andrew.patterson@hp.com, Eric.Moore@lsil.com, mike.miller@hp.com, dougg@torque.net, Madhuresh_Nagshain@adaptec.com On 04/25/05 14:18, Christoph Hellwig wrote: > The point is that discovery must happen for each HBA separately because > we absolutely do not want to have global state. OK. Can you please define "global state"? In SAS, when the domain changes, the controller(s) connected to the domain get notification and pass it to the discovery process, which will run again. Overall, since the discovery process gets (internally) a "picture" of the domain out there, it would be appropriate to show this "picture" to the user. Luben