[DOC BLD FIX] Fix docstring issues in ibm_storage

There were a number of issues with dosctring issues
in the ibm_storage driver.  The issues were causing
Sphinx to produce WARNINGs.  This patch correct
those issues.

Change-Id: I0a616ff1f5ce2b26a450f0336be59dacf1f2515f

cinder/volume/drivers/ibm/ibm_storage/ds8k_proxy.py

@@ -18,42 +18,46 @@ This is the driver that allows openstack to talk to DS8K.
 
 All volumes are thin provisioned by default, if the machine is licensed for it.
 This can be overridden by creating a volume type and specifying a key like so:
-#> cinder type-create my_type
-#> cinder type-key my_type set drivers:thin_provision=False
-#> cinder create --volume-type my_type 123
+
+.. code:: console
+
+  #> cinder type-create my_type
+  #> cinder type-key my_type set drivers:thin_provision=False
+  #> cinder create --volume-type my_type 123
 
 
 Sample settings for cinder.conf:
---->
-enabled_backends = ibm_ds8k_1, ibm_ds8k_2
-[ibm_ds8k_1]
-proxy = cinder.volume.drivers.ibm.ibm_storage.ds8k_proxy.DS8KProxy
-volume_backend_name = ibm_ds8k_1
-san_clustername = P2,P3
-san_password = actual_password
-san_login = actual_username
-san_ip = foo.com
-volume_driver =
-    cinder.volume.drivers.ibm.ibm_storage.ibm_storage.IBMStorageDriver
-chap = disabled
-connection_type = fibre_channel
-replication_device = connection_type: fibre_channel, backend_id: bar,
-                     san_ip: bar.com, san_login: actual_username,
-                     san_password: actual_password, san_clustername: P4,
-                     port_pairs: I0236-I0306; I0237-I0307
 
-[ibm_ds8k_2]
-proxy = cinder.volume.drivers.ibm.ibm_storage.ds8k_proxy.DS8KProxy
-volume_backend_name = ibm_ds8k_2
-san_clustername = P4,P5
-san_password = actual_password
-san_login = actual_username
-san_ip = bar.com
-volume_driver =
-    cinder.volume.drivers.ibm.ibm_storage.ibm_storage.IBMStorageDriver
-chap = disabled
-connection_type = fibre_channel
-<---
+.. code:: ini
+
+  enabled_backends = ibm_ds8k_1, ibm_ds8k_2
+  [ibm_ds8k_1]
+  proxy = cinder.volume.drivers.ibm.ibm_storage.ds8k_proxy.DS8KProxy
+  volume_backend_name = ibm_ds8k_1
+  san_clustername = P2,P3
+  san_password = actual_password
+  san_login = actual_username
+  san_ip = foo.com
+  volume_driver =
+      cinder.volume.drivers.ibm.ibm_storage.ibm_storage.IBMStorageDriver
+  chap = disabled
+  connection_type = fibre_channel
+  replication_device = connection_type: fibre_channel, backend_id: bar,
+                       san_ip: bar.com, san_login: actual_username,
+                       san_password: actual_password, san_clustername: P4,
+                       port_pairs: I0236-I0306; I0237-I0307
+
+  [ibm_ds8k_2]
+  proxy = cinder.volume.drivers.ibm.ibm_storage.ds8k_proxy.DS8KProxy
+  volume_backend_name = ibm_ds8k_2
+  san_clustername = P4,P5
+  san_password = actual_password
+  san_login = actual_username
+  san_ip = bar.com
+  volume_driver =
+      cinder.volume.drivers.ibm.ibm_storage.ibm_storage.IBMStorageDriver
+  chap = disabled
+  connection_type = fibre_channel
 
 """
 import ast

cinder/volume/drivers/ibm/ibm_storage/ds8k_restclient.py

@@ -111,17 +111,27 @@ class AbstractRESTConnector(object):
 
         Input: see above
         Output:
+
             if we reached the server and read an HTTP response:
-            (INTEGER__HTTP_RESPONSE_STATUS_CODE,
-            STRING__BODY_OF_RESPONSE_EVEN_IF_STATUS_NOT_200)
+
+            .. code:: text
+
+              (INTEGER__HTTP_RESPONSE_STATUS_CODE,
+               STRING__BODY_OF_RESPONSE_EVEN_IF_STATUS_NOT_200)
+
             if we were not able to reach the server or response
             was invalid HTTP(like certificate error, or could not
             resolve domain etc):
-            (False, STRING__SHORT_EXPLANATION_OF_REASON_FOR_NOT_
-             REACHING_SERVER_OR_GETTING_INVALID_RESPONSE)
+
+            .. code:: text
+
+              (False, STRING__SHORT_EXPLANATION_OF_REASON_FOR_NOT_
+               REACHING_SERVER_OR_GETTING_INVALID_RESPONSE)
+
         Exception: should not raise any exceptions itself as all
             the expected scenarios are covered above. Unexpected
             exceptions are permitted.
+
         """
         pass
 

cinder/volume/drivers/ibm/ibm_storage/xiv_proxy.py

@@ -103,10 +103,12 @@ class XIVProxy(proxy.IBMStorageProxy):
     Version: 2.1.0
     Required pyxcli version: 1.1.4
 
-    2.0 - First open source driver version
-    2.1.0 - Support Consistency groups through Generic volume groups
-          - Support XIV/A9000 Volume independent QoS
-          - Support groups replication
+    .. code:: text
+
+      2.0 - First open source driver version
+      2.1.0 - Support Consistency groups through Generic volume groups
+            - Support XIV/A9000 Volume independent QoS
+            - Support groups replication
 
     """