Re: [PATCH V2 0/4] Add XEN pvSCSI support

[Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>]

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