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don't clear skb mark when ovs is hw-offload enabled

skb mark is not supported when using ovs hw-offload and using it
breaks the vxlan offload.

This patch clear skb mark only if ovs hw-offload is disabled.
This should be fine as ovs with hw-offload runs on the
compute node (DVR is not supported), so clear the skb mark for
the qrouter is not needed.

Closes-Bug: #1855888

Change-Id: I71f45fcd9b7e7bdacaafc7fa96c775e88333ab48
(cherry picked from commit a75ec08ddb)
tags/14.1.0
Moshe Levi 2 months ago
parent
commit
bee5059ccb
3 changed files with 36 additions and 1 deletions
  1. +13
    -1
      neutron/agent/common/ovs_lib.py
  2. +21
    -0
      neutron/tests/unit/agent/common/test_ovs_lib.py
  3. +2
    -0
      neutron/tests/unit/plugins/ml2/drivers/openvswitch/agent/openflow/ovs_ofctl/test_br_tun.py

+ 13
- 1
neutron/agent/common/ovs_lib.py View File

@@ -118,6 +118,7 @@ class BaseOVS(object):
def __init__(self):
self.ovsdb_timeout = cfg.CONF.OVS.ovsdb_timeout
self.ovsdb = impl_idl.api_factory()
self._hw_offload = None

def add_manager(self, connection_uri, timeout=_SENTINEL):
"""Have ovsdb-server listen for manager connections
@@ -198,6 +199,13 @@ class BaseOVS(object):
_cfg = self.config
return {k: _cfg.get(k, OVS_DEFAULT_CAPS[k]) for k in OVS_DEFAULT_CAPS}

@property
def is_hw_offload_enabled(self):
if self._hw_offload is None:
self._hw_offload = self.config.get('other_config',
{}).get('hw-offload', '').lower() == 'true'
return self._hw_offload


# Map from version string to on-the-wire protocol version encoding:
OF_PROTOCOL_TO_VERSION = {
@@ -508,7 +516,11 @@ class OVSBridge(BaseOVS):
options['local_ip'] = local_ip
options['in_key'] = 'flow'
options['out_key'] = 'flow'
options['egress_pkt_mark'] = '0'
# NOTE(moshele): pkt_mark is not upported when using ovs hw-offload,
# therefore avoid clear mark on encapsulating packets when it's
# enabled
if not self.is_hw_offload_enabled:
options['egress_pkt_mark'] = '0'
if tunnel_csum:
options['csum'] = str(tunnel_csum).lower()
if tos:

+ 21
- 0
neutron/tests/unit/agent/common/test_ovs_lib.py View File

@@ -578,6 +578,27 @@ class OVS_Lib_Test(base.BaseTestCase):
set_ctrl_field_mock.assert_called_once_with(
'controller_burst_limit', ovs_lib.CTRL_BURST_LIMIT_MIN)

def test_hw_offload_enabled_false(self):
config_mock1 = mock.PropertyMock(return_value={"other_config": {}})
config_mock2 = mock.PropertyMock(
return_value={"other_config": {"hw-offload": "false"}})
config_mock3 = mock.PropertyMock(
return_value={"other_config": {"hw-offload": "False"}})
for config_mock in (config_mock1, config_mock2, config_mock3):
with mock.patch("neutron.agent.common.ovs_lib.OVSBridge.config",
new_callable=config_mock):
self.assertFalse(self.br.is_hw_offload_enabled)

def test_hw_offload_enabled_true(self):
config_mock1 = mock.PropertyMock(
return_value={"other_config": {"hw-offload": "true"}})
config_mock2 = mock.PropertyMock(
return_value={"other_config": {"hw-offload": "True"}})
for config_mock in (config_mock1, config_mock2):
with mock.patch("neutron.agent.common.ovs_lib.OVSBridge.config",
new_callable=config_mock):
self.assertTrue(self.br.is_hw_offload_enabled)


class TestDeferredOVSBridge(base.BaseTestCase):


+ 2
- 0
neutron/tests/unit/plugins/ml2/drivers/openvswitch/agent/openflow/ovs_ofctl/test_br_tun.py View File

@@ -308,12 +308,14 @@ class OVSTunnelBridgeTest(ovs_bridge_test_base.OVSBridgeTestBase,
self.assertEqual([call(port_name)], delete_port.mock_calls)

def test_add_tunnel_port(self):
self.br._hw_offload = False
self._mock_add_tunnel_port()

def test_delete_port(self):
self._mock_delete_port()

def test_deferred_br_add_tunnel_port(self):
self.br._hw_offload = False
self._mock_add_tunnel_port(True)

def test_deferred_br_delete_port(self):

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