Report multiattach capability for Hitachi VSP drivers

This patch enables the reporting of the multiattach capability in
get_volume_stats for Hitachi VSP drivers.
Also repairs the comments of class.

Change-Id: I6fcc979c816415d0383bc80b8b7f7129623bf942

cinder/tests/unit/volume/drivers/hitachi/test_hitachi_vsp_horcm_fc.py

@@ -1088,6 +1088,7 @@ class VSPHORCMFCDriverTest(test.TestCase):
         """Normal case: Refreshing data required."""
         stats = self.driver.get_volume_stats(True)
         self.assertEqual('Hitachi', stats['vendor_name'])
+        self.assertTrue(stats['multiattach'])
 
     @mock.patch.object(vsp_utils, 'execute', side_effect=_execute)
     def test_get_volume_stats_no_refresh(self, *args):

cinder/tests/unit/volume/drivers/hitachi/test_hitachi_vsp_horcm_iscsi.py

@@ -1157,6 +1157,7 @@ class VSPHORCMISCSIDriverTest(test.TestCase):
         """Normal case: Refreshing data required."""
         stats = self.driver.get_volume_stats(True)
         self.assertEqual('Hitachi', stats['vendor_name'])
+        self.assertTrue(stats['multiattach'])
 
     @mock.patch.object(vsp_utils, 'execute', side_effect=_execute)
     def test_get_volume_stats_no_refresh(self, *args):

cinder/volume/drivers/hitachi/vsp_common.py

@@ -128,15 +128,7 @@ def _str2int(num):
 
 @six.add_metaclass(abc.ABCMeta)
 class VSPCommon(object):
-    """Common class for Hitachi VSP Driver.
-
-    Version history:
-
-    .. code-block:: none
-
-    1.0.0 - Initial driver.
-
-    """
+    """Common class for Hitachi VSP Driver."""
 
     def __init__(self, conf, driverinfo, db):
         """Initialize instance variables."""
@@ -520,6 +512,7 @@ class VSPCommon(object):
         data['free_capacity_gb'] = free_gb
         data['reserved_percentage'] = self.conf.safe_get('reserved_percentage')
         data['QoS_support'] = False
+        data['multiattach'] = True
         LOG.debug("Updating volume status. (%s)", data)
         self._stats = data
 

cinder/volume/drivers/hitachi/vsp_fc.py

@@ -56,7 +56,7 @@ class VSPFCDriver(driver.FibreChannelDriver):
 
     .. code-block:: none
 
-    1.0.0 - Initial driver.
+        1.0.0 - Initial driver.
 
     """
 

cinder/volume/drivers/hitachi/vsp_horcm.py

@@ -305,15 +305,7 @@ def _check_ldev(ldev_info, ldev, existing_ref):
 
 
 class VSPHORCM(common.VSPCommon):
-    """HORCM interface class for Hitachi VSP Driver.
-
-    Version history:
-
-    .. code-block:: none
-
-    1.0.0 - Initial driver.
-
-    """
+    """HORCM interface class for Hitachi VSP Driver."""
 
     def __init__(self, conf, storage_protocol, db):
         """Initialize instance variables."""

cinder/volume/drivers/hitachi/vsp_horcm_fc.py

@@ -36,15 +36,7 @@ MSG = utils.VSPMsg
 
 
 class VSPHORCMFC(horcm.VSPHORCM):
-    """HORCM interface fibre channel class for Hitachi VSP Driver.
-
-    Version history:
-
-    .. code-block:: none
-
-    1.0.0 - Initial driver.
-
-    """
+    """HORCM interface fibre channel class for Hitachi VSP Driver."""
 
     def __init__(self, conf, storage_protocol, db):
         """Initialize instance variables."""

cinder/volume/drivers/hitachi/vsp_horcm_iscsi.py

@@ -40,15 +40,7 @@ MSG = utils.VSPMsg
 
 
 class VSPHORCMISCSI(horcm.VSPHORCM):
-    """HORCM interface iscsi class for Hitachi VSP Driver.
-
-    Version history:
-
-    .. code-block:: none
-
-    1.0.0 - Initial driver.
-
-    """
+    """HORCM interface iscsi class for Hitachi VSP Driver."""
 
     def connect_storage(self):
         """Prepare for using the storage."""

cinder/volume/drivers/hitachi/vsp_iscsi.py

@@ -63,7 +63,7 @@ class VSPISCSIDriver(driver.ISCSIDriver):
 
     .. code-block:: none
 
-    1.0.0 - Initial driver.
+        1.0.0 - Initial driver.
 
     """