smoketest: ethernet: rfs: T4689: also test default "0" case

In addition to verify the queue lengths when CLI option is set, we also need
to verify that all values are resetted back to "0" which is the Kernel default.

1 files changed, 27 insertions, 8 deletions

diff --git a/smoketest/scripts/cli/test_interfaces_ethernet.py b/smoketest/scripts/cli/test_interfaces_ethernet.py
index 529655f6a..5049bd5b0 100755
--- a/smoketest/scripts/cli/test_interfaces_ethernet.py
+++ b/smoketest/scripts/cli/test_interfaces_ethernet.py
@@ -192,17 +192,36 @@ class EthernetInterfaceTest(BasicInterfaceTest.TestCase):
 
         for interface in self._interfaces:
             self.cli_set(self._base_path + [interface, 'offload', 'rfs'])
+
         self.cli_commit()
 
         for interface in self._interfaces:
-            queues = glob(f'/sys/class/net/{interface}/queues/rx-*')
-            rfs_flow = global_rfs_flow/len(queues)
-            for i in range(0,len(queues)):
-                flows = read_file(f'/sys/class/net/{interface}/queues/rx-{i}/rps_flow_cnt')
-                self.assertEqual(int(flows), int(rfs_flow))
-
-        global_flows = read_file(f'/proc/sys/net/core/rps_sock_flow_entries')
-        self.assertEqual(int(global_flows), int(global_rfs_flow))
+            queues = len(glob(f'/sys/class/net/{interface}/queues/rx-*'))
+            rfs_flow = int(global_rfs_flow/queues)
+            for i in range(0, queues):
+                tmp = read_file(f'/sys/class/net/{interface}/queues/rx-{i}/rps_flow_cnt')
+                self.assertEqual(int(tmp), rfs_flow)
+
+        tmp = read_file(f'/proc/sys/net/core/rps_sock_flow_entries')
+        self.assertEqual(int(tmp), global_rfs_flow)
+
+
+        # delete configuration of RFS and check all values returned to default "0"
+        for interface in self._interfaces:
+            self.cli_delete(self._base_path + [interface, 'offload', 'rfs'])
+
+        self.cli_commit()
+
+        for interface in self._interfaces:
+            queues = len(glob(f'/sys/class/net/{interface}/queues/rx-*'))
+            rfs_flow = int(global_rfs_flow/queues)
+            for i in range(0, queues):
+                tmp = read_file(f'/sys/class/net/{interface}/queues/rx-{i}/rps_flow_cnt')
+                self.assertEqual(int(tmp), 0)
+
+        tmp = read_file(f'/proc/sys/net/core/rps_sock_flow_entries')
+        self.assertEqual(int(tmp), 0)
+
 
     def test_non_existing_interface(self):
         unknonw_interface = self._base_path + ['eth667']