spdkcli: add error injection bdev

Change-Id: Id86b4f464b89b0010129fccd32a1138a31fb62a1
Signed-off-by: Karol Latecki <karol.latecki@intel.com>
Reviewed-on: https://review.gerrithub.io/414954
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>

scripts/spdkcli/ui_node.py

@@ -53,6 +53,7 @@ class UIBdevs(UINode):
         UILvolBdev(self)
         UINvmeBdev(self)
         UINullBdev(self)
+        UIErrorBdev(self)
         UISplitBdev(self)
 
     def ui_command_delete(self, name):
@@ -311,6 +312,23 @@ class UINullBdev(UIBdev):
         self.refresh()
 
 
+class UIErrorBdev(UIBdev):
+    def __init__(self, parent):
+        UIBdev.__init__(self, "Error", parent)
+
+    def ui_command_create(self, base_name):
+        """
+        Construct a error injection bdev.
+
+        Arguments:
+        base_name - base bdev name on top of which error bdev will be created.
+        """
+
+        self.get_root().create_error_bdev(base_name=base_name)
+        self.get_root().refresh()
+        self.refresh()
+
+
 class UISplitBdev(UIBdev):
     def __init__(self, parent):
         UIBdev.__init__(self, "Split_Disk", parent)

scripts/spdkcli/ui_root.py

@@ -69,6 +69,9 @@ class UIRoot(UINode):
         response = rpc.bdev.construct_null_bdev(self.client, **kwargs)
         return self.print_array(response)
 
+    def create_error_bdev(self, **kwargs):
+        response = rpc.bdev.construct_error_bdev(self.client, **kwargs)
+
     def get_lvol_stores(self):
         self.current_lvol_stores = rpc.lvol.get_lvol_stores(self.client)
         for lvs in self.current_lvol_stores: