[PATCH net-next v2 3/5] tools: ynl: ethtool: add --dbg-small-recv option

[Hangbin Liu <liuhangbin@gmail.com>]

Add a --dbg-small-recv debug option to control the recv() buffer size
used by YNL, matching the same option already present in cli.py. This
is useful if user need to get large netlink message.

Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
---
 tools/net/ynl/tests/ethtool.py | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/tools/net/ynl/tests/ethtool.py b/tools/net/ynl/tests/ethtool.py
index 63854d21818c..db3b62c652e7 100755
--- a/tools/net/ynl/tests/ethtool.py
+++ b/tools/net/ynl/tests/ethtool.py
@@ -166,12 +166,19 @@ def main():
     parser.add_argument('device', metavar='device', type=str)
     parser.add_argument('args', metavar='args', type=str, nargs='*')
 
+    dbg_group = parser.add_argument_group('Debug options')
+    dbg_group.add_argument('--dbg-small-recv', default=0, const=4000,
+                           action='store', nargs='?', type=int, metavar='INT',
+                           help="Length of buffers used for recv()")
+
     args = parser.parse_args()
 
     spec = os.path.join(spec_dir(), 'ethtool.yaml')
     schema = os.path.join(schema_dir(), 'genetlink-legacy.yaml')
 
-    ynl = YnlFamily(spec, schema)
+    ynl = YnlFamily(spec, schema, recv_size=args.dbg_small_recv)
+    if args.dbg_small_recv:
+        ynl.set_recv_dbg(True)
 
     if args.set_priv_flags:
         # TODO: parse the bitmask

-- 
Git-155)