From mboxrd@z Thu Jan 1 00:00:00 1970 From: Konrad Rzeszutek Wilk Subject: Re: [PATCH V2 0/4] Add XEN pvSCSI support Date: Fri, 25 Jul 2014 13:38:33 -0400 Message-ID: <20140725173833.GE11179@laptop.dumpdata.com> References: <1406288253-13293-1-git-send-email-jgross@suse.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <1406288253-13293-1-git-send-email-jgross@suse.com> Sender: target-devel-owner@vger.kernel.org To: jgross@suse.com Cc: xen-devel@lists.xen.org, linux-scsi@vger.kernel.org, JBottomley@parallels.com, target-devel@vger.kernel.org List-Id: linux-scsi@vger.kernel.org On Fri, Jul 25, 2014 at 01:37:29PM +0200, jgross@suse.com wrote: > This series adds XEN pvSCSI support. With pvSCSI it is possible to use physical > SCSI devices from a XEN domain. > > The support consists of a backend in the privileged Domain-0 doing the real > I/O and a frontend in the unprivileged domU passing I/O-requests to the backend. > About the question that Christopher Hellwig asked - was that ever answered? > The code is taken (and adapted) from the original pvSCSI implementation done > for Linux 2.6 in 2008 by Fujitsu. > > [PATCH V2 1/4] Add XEN pvSCSI protocol description > [PATCH V2 2/4] Introduce xen-scsifront module > [PATCH V2 3/4] Introduce XEN scsiback module > [PATCH V2 4/4] add xen pvscsi maintainer > > Changes in V2: > - use core target infrastructure by backend instead of pure SCSI passthrough > - add support for larger SG lists by putting them in grant page(s) > - add command abort capability