From: Juergen Gross Date: Thu, 28 Aug 2014 04:44:11 +0000 (+0200) Subject: xen-scsifront: Add Xen PV SCSI frontend driver X-Git-Tag: fixes-against-v3.18-rc2~118^2~17 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8beb8d4c91d652617dc992de565ec9904361c33e;p=pandora-kernel.git xen-scsifront: Add Xen PV SCSI frontend driver Introduces the Xen pvSCSI frontend. With pvSCSI it is possible for a Xen domU to issue SCSI commands to a SCSI LUN assigned to that domU. The SCSI commands are passed to the pvSCSI backend in a driver domain (usually Dom0) which is owner of the physical device. This allows e.g. to use SCSI tape drives in a Xen domU. The code is taken from the pvSCSI implementation in Xen done by Fujitsu based on Linux kernel 2.6.18. Changes from the original version are: - port to upstream kernel - put all code in just one source file - move module to appropriate location in kernel tree - adapt to Linux style guide - some minor code simplifications - replace constants with defines - remove not used defines - add support for larger SG lists by putting them in a granted page Signed-off-by: Juergen Gross Acked-by: Christoph Hellwig Signed-off-by: David Vrabel --- Reading git-diff-tree failed