[Xen-devel] [PATCH] xend/pvscsi: recognize also SCSI CDROM devices

[Olaf Hering <olaf@xxxxxxxxx>]

Attaching a CDROM device with 'xm scsi-attach domU /dev/sr0 0:0:0:0'
fails because for some reason the sr driver was not handled at all in
the match list. With the change the above command succeeds and the
device is attached.

Signed-off-by: Olaf Hering <olaf@xxxxxxxxx>
---

Once this change gets commited, it should also be backported to the
maintained trees which contains these fixes (4.3+):

89bb46e xend/pvscsi: update sysfs parser for Linux 3.0
65ddfc5 xend/pvscsi: fix usage of persistant device names for SCSI devices
a6046ec xend/pvscsi: fix passing of SCSI control LUNs

 tools/python/xen/util/vscsi_util.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tools/python/xen/util/vscsi_util.py 
b/tools/python/xen/util/vscsi_util.py
index 5872e65..a4f5ad3 100644
--- a/tools/python/xen/util/vscsi_util.py
+++ b/tools/python/xen/util/vscsi_util.py
@@ -66,6 +66,9 @@ def _vscsi_get_hctl_by(phyname, scsi_devices):
     if re.match('/dev/sd[a-z]+([1-9]|1[0-5])?$', phyname):
         # sd driver
         name = re.sub('(^/dev/)|([1-9]|1[0-5])?$', '', phyname)
+    elif re.match('/dev/sr[0-9]+$', phyname):
+        # sr driver
+        name = re.sub('^/dev/', '', phyname)
     elif re.match('/dev/sg[0-9]+$', phyname):
         # sg driver
         name = re.sub('^/dev/', '', phyname)

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