tests: test punt policer bound to worker thread

Add to the IP[46] punt policer handoff tests by binding the policer to
a particular worker and checking all packets are policed on that thread.

Type: test
Signed-off-by: Brian Russell <brian@graphiant.com>
Change-Id: I7fab28659ccb65f13f841cec65a3f808281b3f90

3 files changed, 93 insertions, 2 deletions

diff --git a/test/test_ip4.py b/test/test_ip4.py
index f0b43947736..c89d546023d 100644
--- a/test/test_ip4.py
+++ b/test/test_ip4.py
@@ -1642,8 +1642,7 @@ class TestIPPuntHandoff(IPPuntSetup, VppTestCase):
 
         for worker in [0, 1]:
             self.send_and_expect(self.pg0, pkts, self.pg1, worker=worker)
-            if worker == 0:
-                self.logger.debug(self.vapi.cli("show trace max 100"))
+            self.logger.debug(self.vapi.cli("show trace max 100"))
 
         # Combined stats, all threads
         stats = policer.get_stats()
@@ -1663,6 +1662,50 @@ class TestIPPuntHandoff(IPPuntSetup, VppTestCase):
         self.assertEqual(stats1['exceed_packets'], 0)
         self.assertEqual(stats1['violate_packets'], 0)
 
+        # Bind the policer to worker 1 and repeat
+        policer.bind_vpp_config(1, True)
+        for worker in [0, 1]:
+            self.send_and_expect(self.pg0, pkts, self.pg1, worker=worker)
+            self.logger.debug(self.vapi.cli("show trace max 100"))
+
+        # The 2 workers should now have policed the same amount
+        stats = policer.get_stats()
+        stats0 = policer.get_stats(worker=0)
+        stats1 = policer.get_stats(worker=1)
+
+        self.assertGreater(stats0['conform_packets'], 0)
+        self.assertEqual(stats0['exceed_packets'], 0)
+        self.assertGreater(stats0['violate_packets'], 0)
+
+        self.assertGreater(stats1['conform_packets'], 0)
+        self.assertEqual(stats1['exceed_packets'], 0)
+        self.assertGreater(stats1['violate_packets'], 0)
+
+        self.assertEqual(stats0['conform_packets'] + stats1['conform_packets'],
+                         stats['conform_packets'])
+
+        self.assertEqual(stats0['violate_packets'] + stats1['violate_packets'],
+                         stats['violate_packets'])
+
+        # Unbind the policer and repeat
+        policer.bind_vpp_config(1, False)
+        for worker in [0, 1]:
+            self.send_and_expect(self.pg0, pkts, self.pg1, worker=worker)
+            self.logger.debug(self.vapi.cli("show trace max 100"))
+
+        # The policer should auto-bind to worker 0 when packets arrive
+        stats = policer.get_stats()
+        stats0new = policer.get_stats(worker=0)
+        stats1new = policer.get_stats(worker=1)
+
+        self.assertGreater(stats0new['conform_packets'],
+                           stats0['conform_packets'])
+        self.assertEqual(stats0new['exceed_packets'], 0)
+        self.assertGreater(stats0new['violate_packets'],
+                           stats0['violate_packets'])
+
+        self.assertEqual(stats1, stats1new)
+
         #
         # Clean up
         #
diff --git a/test/test_ip6.py b/test/test_ip6.py
index a3da6650d8b..8a2b332d167 100644
--- a/test/test_ip6.py
+++ b/test/test_ip6.py
@@ -2377,6 +2377,50 @@ class TestIP6PuntHandoff(IP6PuntSetup, VppTestCase):
         self.assertEqual(stats1['exceed_packets'], 0)
         self.assertEqual(stats1['violate_packets'], 0)
 
+        # Bind the policer to worker 1 and repeat
+        policer.bind_vpp_config(1, True)
+        for worker in [0, 1]:
+            self.send_and_expect(self.pg0, pkts, self.pg1, worker=worker)
+            self.logger.debug(self.vapi.cli("show trace max 100"))
+
+        # The 2 workers should now have policed the same amount
+        stats = policer.get_stats()
+        stats0 = policer.get_stats(worker=0)
+        stats1 = policer.get_stats(worker=1)
+
+        self.assertGreater(stats0['conform_packets'], 0)
+        self.assertEqual(stats0['exceed_packets'], 0)
+        self.assertGreater(stats0['violate_packets'], 0)
+
+        self.assertGreater(stats1['conform_packets'], 0)
+        self.assertEqual(stats1['exceed_packets'], 0)
+        self.assertGreater(stats1['violate_packets'], 0)
+
+        self.assertEqual(stats0['conform_packets'] + stats1['conform_packets'],
+                         stats['conform_packets'])
+
+        self.assertEqual(stats0['violate_packets'] + stats1['violate_packets'],
+                         stats['violate_packets'])
+
+        # Unbind the policer and repeat
+        policer.bind_vpp_config(1, False)
+        for worker in [0, 1]:
+            self.send_and_expect(self.pg0, pkts, self.pg1, worker=worker)
+            self.logger.debug(self.vapi.cli("show trace max 100"))
+
+        # The policer should auto-bind to worker 0 when packets arrive
+        stats = policer.get_stats()
+        stats0new = policer.get_stats(worker=0)
+        stats1new = policer.get_stats(worker=1)
+
+        self.assertGreater(stats0new['conform_packets'],
+                           stats0['conform_packets'])
+        self.assertEqual(stats0new['exceed_packets'], 0)
+        self.assertGreater(stats0new['violate_packets'],
+                           stats0['violate_packets'])
+
+        self.assertEqual(stats1, stats1new)
+
         #
         # Clean up
         #
diff --git a/test/vpp_policer.py b/test/vpp_policer.py
index 7f6d8191138..387ab270214 100644
--- a/test/vpp_policer.py
+++ b/test/vpp_policer.py
@@ -57,6 +57,10 @@ class VppPolicer(VppObject):
         self._test.vapi.policer_add_del(is_add=False, name=self.name)
         self._policer_index = INVALID_INDEX
 
+    def bind_vpp_config(self, worker, bind):
+        self._test.vapi.policer_bind(name=self.name, worker_index=worker,
+                                     bind_enable=bind)
+
     def query_vpp_config(self):
         dump = self._test.vapi.policer_dump(
             match_name_valid=True, match_name=self.name)