Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751121AbVIGRRy (ORCPT ); Wed, 7 Sep 2005 13:17:54 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751116AbVIGRRy (ORCPT ); Wed, 7 Sep 2005 13:17:54 -0400 Received: from sabe.cs.wisc.edu ([128.105.6.20]:48290 "EHLO sabe.cs.wisc.edu") by vger.kernel.org with ESMTP id S1751091AbVIGRRx (ORCPT ); Wed, 7 Sep 2005 13:17:53 -0400 Message-ID: <431F20AA.1090101@cs.wisc.edu> Date: Wed, 07 Sep 2005 12:17:30 -0500 From: Mike Christie User-Agent: Mozilla Thunderbird 1.0.2-6 (X11/20050513) X-Accept-Language: en-us, en MIME-Version: 1.0 To: FUJITA Tomonori CC: boutcher@cs.umn.edu, hch@lst.de, vst@vlnb.net, linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org, linuxppc64-dev@ozlabs.org, santil@us.ibm.com, lxiep@us.ibm.com Subject: Re: [RFC] SCSI target for IBM Power5 LPAR References: <20050906212801.GB14057@cs.umn.edu> <20050907104932.GA14200@lst.de> <20050907124504.GA13614@cs.umn.edu> <20050907215816C.fujita.tomonori@lab.ntt.co.jp> In-Reply-To: <20050907215816C.fujita.tomonori@lab.ntt.co.jp> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1316 Lines: 26 FUJITA Tomonori wrote: > month. We discussed it with Christoph and decided that it would be > better to start from scratch because of the design differences. Some of the things we are trying to improve upon are things that are better supported in 2.6. Some differences: - We will support controller hotplug. - We allow any type of device (dm, scsi, ide, LVM@ etc) as storage. And we do not want hook into SCSI-ml's upper layer drivers and deal with that refcounting if we can help it so we push a lot of code to userspace and only do reads and writes in the kernel. - We also hope to support any block layer target. - As mentioned before, scatterlists by using the block layer's support. There may be more that I am forgetting, but originally we started out by trying to clean up the SCST code for 2.6 and make it resemble SCSI-ml's hotplug model. As we did this it looked like some code could live in userspace and it would end up being a rewrite becuase there was so much to do so we started a new project. We hope to work with Vlad and the SCST developers. - 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/