pyloxi: unpack of_list_group_desc_stats_entry
diff --git a/py_gen/oftype.py b/py_gen/oftype.py
index 6077955..be8611e 100644
--- a/py_gen/oftype.py
+++ b/py_gen/oftype.py
@@ -130,6 +130,8 @@
             return 'oxm.unpack_list(%s.slice(_length-4))' % (reader_expr)
         elif self.base == 'of_list_bucket_t':
             return 'common.unpack_list_bucket(%s)' % (reader_expr)
+        elif self.base == 'of_list_group_desc_stats_entry_t':
+            return 'common.unpack_list_group_desc_stats_entry(%s)' % (reader_expr)
         elif self.base == 'of_port_name_t':
             return self._gen_string_unpack_expr(reader_expr, 16)
         elif self.base == 'of_table_name_t' or self.base == 'of_serial_num_t':
diff --git a/py_gen/templates/common.py b/py_gen/templates/common.py
index c2ad61c..beeaa01 100644
--- a/py_gen/templates/common.py
+++ b/py_gen/templates/common.py
@@ -71,6 +71,9 @@
 def unpack_list_bucket(reader):
     return loxi.generic_util.unpack_list_lv16(reader, bucket.unpack)
 
+def unpack_list_group_desc_stats_entry(reader):
+    return loxi.generic_util.unpack_list_lv16(reader, group_desc_stats_entry.unpack)
+
 :: for ofclass in ofclasses:
 :: include('_ofclass.py', ofclass=ofclass, superclass="object")
 
diff --git a/py_gen/tests/of11.py b/py_gen/tests/of11.py
index 69d4a6a..b1acd12 100644
--- a/py_gen/tests/of11.py
+++ b/py_gen/tests/of11.py
@@ -77,7 +77,6 @@
             ofp.message.flow_modify_strict,
             ofp.message.flow_delete,
             ofp.message.flow_delete_strict,
-            ofp.message.group_desc_stats_reply,
             ofp.message.group_stats_reply,
         ]
         for klass in self.klasses:
diff --git a/py_gen/tests/of12.py b/py_gen/tests/of12.py
index 02bc1a7..743d244 100644
--- a/py_gen/tests/of12.py
+++ b/py_gen/tests/of12.py
@@ -165,7 +165,6 @@
             ofp.message.flow_modify_strict,
             ofp.message.flow_delete,
             ofp.message.flow_delete_strict,
-            ofp.message.group_desc_stats_reply,
             ofp.message.group_stats_reply,
         ]
         for klass in self.klasses:
diff --git a/py_gen/tests/of13.py b/py_gen/tests/of13.py
index 74d19af..5484fe2 100644
--- a/py_gen/tests/of13.py
+++ b/py_gen/tests/of13.py
@@ -541,8 +541,76 @@
         pass
 
     def test_group_desc_stats_reply(self):
-        # TODO
-        pass
+        obj = ofp.message.group_desc_stats_reply(
+            xid=0x12345678,
+            flags=0,
+            entries=[
+                ofp.group_desc_stats_entry(
+                    type=ofp.OFPGT_FF,
+                    group_id=1,
+                    buckets=[
+                        ofp.bucket(
+                            weight=1,
+                            watch_port=5,
+                            watch_group=0xffffffff,
+                            actions=[
+                                ofp.action.output(port=5, max_len=0),
+                                ofp.action.output(port=6, max_len=0)]),
+                        ofp.bucket(
+                            weight=1,
+                            watch_port=6,
+                            watch_group=0xffffffff,
+                            actions=[
+                                ofp.action.output(port=5, max_len=0),
+                                ofp.action.output(port=6, max_len=0)])]),
+                ofp.group_desc_stats_entry(type=ofp.OFPGT_FF, group_id=2, buckets=[])])
+        buf = ''.join([
+            '\x04', '\x13', # version, type
+            '\x00\x80', # length
+            '\x12\x34\x56\x78', # xid
+            '\x00\x07', # stats_type
+            '\x00\x00', # flags
+            '\x00' * 4, # pad
+            '\x00\x68', # entries[0].length
+            '\x03', # entries[0].group_type
+            '\x00', # entries[0].pad
+            '\x00\x00\x00\x01', # entries[0].group_id
+            '\x00\x30', # entries[0].buckets[0].len
+            '\x00\x01', # entries[0].buckets[0].weight
+            '\x00\x00\x00\x05', # entries[0].buckets[0].watch_port
+            '\xff\xff\xff\xff', # entries[0].buckets[0].watch_group
+            '\x00' * 4, # entries[0].pad
+            '\x00\x00', # entries[0].buckets[0].actions[0].type
+            '\x00\x10', # entries[0].buckets[0].actions[0].len
+            '\x00\x00\x00\x05', # entries[0].buckets[0].actions[0].port
+            '\x00\x00', # entries[0].buckets[0].actions[0].max_len
+            '\x00' * 6, # entries[0].pad
+            '\x00\x00', # entries[0].buckets[0].actions[1].type
+            '\x00\x10', # entries[0].buckets[0].actions[1].len
+            '\x00\x00\x00\x06', # entries[0].buckets[0].actions[1].port
+            '\x00\x00', # entries[0].buckets[0].actions[1].max_len
+            '\x00' * 6, # entries[0].pad
+            '\x00\x30', # entries[0].buckets[1].len
+            '\x00\x01', # entries[0].buckets[1].weight
+            '\x00\x00\x00\x06', # entries[0].buckets[1].watch_port
+            '\xff\xff\xff\xff', # entries[0].buckets[1].watch_group
+            '\x00' * 4, # entries[0].pad
+            '\x00\x00', # entries[0].buckets[1].actions[0].type
+            '\x00\x10', # entries[0].buckets[1].actions[0].len
+            '\x00\x00\x00\x05', # entries[0].buckets[1].actions[0].port
+            '\x00\x00', # entries[0].buckets[1].actions[0].max_len
+            '\x00' * 6, # entries[0].pad
+            '\x00\x00', # entries[0].buckets[1].actions[1].type
+            '\x00\x10', # entries[0].buckets[1].actions[1].len
+            '\x00\x00\x00\x06', # entries[0].buckets[1].actions[1].port
+            '\x00\x00', # entries[0].buckets[1].actions[1].max_len
+            '\x00' * 6, # entries[0].pad
+            '\x00\x08', # entries[1].length
+            '\x03', # entries[1].group_type
+            '\x00', # entries[1].pad
+            '\x00\x00\x00\x02', # entries[1].group_id
+        ])
+        test_serialization(obj, buf)
 
     def test_group_features_stats_request(self):
         # TODO
@@ -701,7 +769,6 @@
             ofp.message.flow_delete_strict,
             ofp.message.flow_modify,
             ofp.message.flow_modify_strict,
-            ofp.message.group_desc_stats_reply,
             ofp.message.group_stats_reply,
             ofp.message.meter_config_stats_reply,
             ofp.message.meter_features_stats_reply,