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tests: add input policer thread handoff tests

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Test worker thread handoff on an interface input policer.

Type: test
Signed-off-by: Brian Russell <brian@graphiant.com>
Change-Id: I1deddcc9711bccfde377290bc66a00f2cd4163e1
This commit is contained in:
Brian Russell
2021-02-18 11:02:29 +00:00
parent 1aa991280c
commit 26bcbc171b
1 changed files with 74 additions and 2 deletions
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76
src/vnet/policer/test/test_policer_input.py
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@@ -15,6 +15,7 @@ NUM_PKTS = 67
class TestPolicerInput(VppTestCase):
""" Policer on an input interface """
worker_config = "workers 2"
def setUp(self):
super(TestPolicerInput, self).setUp()
@@ -38,6 +39,9 @@ class TestPolicerInput(VppTestCase):
super(TestPolicerInput, self).tearDown()
def test_policer_input(self):
""" Input Policing """
pkts = self.pkt * NUM_PKTS
action_tx = PolicerAction(
VppEnum.vl_api_sse2_qos_action_type_t.SSE2_QOS_ACTION_API_TRANSMIT,
0)
@@ -50,7 +54,7 @@ class TestPolicerInput(VppTestCase):
# Start policing on pg0
policer.apply_vpp_config(self.pg0.sw_if_index, True)
rx = self.send_and_expect(self.pg0, self.pkt * NUM_PKTS, self.pg1)
rx = self.send_and_expect(self.pg0, pkts, self.pg1, worker=0)
stats = policer.get_stats()
# Single rate, 2 colour policer - expect conform, violate but no exceed
@@ -61,7 +65,8 @@ class TestPolicerInput(VppTestCase):
# Stop policing on pg0
policer.apply_vpp_config(self.pg0.sw_if_index, False)
rx = self.send_and_expect(self.pg0, self.pkt * NUM_PKTS, self.pg1)
rx = self.send_and_expect(self.pg0, pkts, self.pg1, worker=0)
statsnew = policer.get_stats()
# No new packets counted
@@ -69,6 +74,73 @@ class TestPolicerInput(VppTestCase):
policer.remove_vpp_config()
def test_policer_handoff(self):
""" Worker thread handoff """
pkts = self.pkt * NUM_PKTS
action_tx = PolicerAction(
VppEnum.vl_api_sse2_qos_action_type_t.SSE2_QOS_ACTION_API_TRANSMIT,
0)
policer = VppPolicer(self, "pol2", 80, 0, 1000, 0,
conform_action=action_tx,
exceed_action=action_tx,
violate_action=action_tx)
policer.add_vpp_config()
# Bind the policer to worker 1
policer.bind_vpp_config(1, True)
# Start policing on pg0
policer.apply_vpp_config(self.pg0.sw_if_index, 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"))
stats = policer.get_stats()
stats0 = policer.get_stats(worker=0)
stats1 = policer.get_stats(worker=1)
# Worker 1, should have done all the policing
self.assertEqual(stats, stats1)
# Worker 0, should have handed everything off
self.assertEqual(stats0['conform_packets'], 0)
self.assertEqual(stats0['exceed_packets'], 0)
self.assertEqual(stats0['violate_packets'], 0)
# Unbind the policer from worker 1 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()
# 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'])
# Stop policing on pg0
policer.apply_vpp_config(self.pg0.sw_if_index, False)
policer.remove_vpp_config()
if __name__ == '__main__':
unittest.main(testRunner=VppTestRunner)