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neutron/neutron/tests/unit/plugins/ml2/drivers/mech_sriov/agent/test_eswitch_manager.py

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37 KiB

# Copyright 2014 Mellanox Technologies, Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import os
import mock
from neutron.agent.linux import ip_link_support
from neutron.plugins.ml2.drivers.mech_sriov.agent.common \
import exceptions as exc
from neutron.plugins.ml2.drivers.mech_sriov.agent import eswitch_manager as esm
from neutron.tests import base
class TestCreateESwitchManager(base.BaseTestCase):
SCANNED_DEVICES = [('0000:06:00.1', 0),
('0000:06:00.2', 1),
('0000:06:00.3', 2)]
@staticmethod
def cleanup():
if hasattr(esm.ESwitchManager, '_instance'):
del esm.ESwitchManager._instance
def test_create_eswitch_mgr_fail(self):
device_mappings = {'physnet1': ['p6p1']}
with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.PciOsWrapper.scan_vf_devices",
side_effect=exc.InvalidDeviceError(
dev_name="p6p1", reason="device" " not found")),\
mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.PciOsWrapper.pf_device_exists",
return_value=True), \
mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.PciOsWrapper.is_assigned_vf",
return_value=True):
eswitch_mgr = esm.ESwitchManager()
self.addCleanup(self.cleanup)
self.assertRaises(exc.InvalidDeviceError,
eswitch_mgr.discover_devices,
device_mappings, None)
def test_create_eswitch_mgr_ok(self):
device_mappings = {'physnet1': ['p6p1']}
with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.PciOsWrapper.scan_vf_devices",
return_value=self.SCANNED_DEVICES),\
mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.PciOsWrapper.pf_device_exists",
return_value=True), \
mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.PciOsWrapper.is_assigned_vf",
return_value=True):
eswitch_mgr = esm.ESwitchManager()
self.addCleanup(self.cleanup)
eswitch_mgr.discover_devices(device_mappings, None)
class TestESwitchManagerApi(base.BaseTestCase):
SCANNED_DEVICES = [('0000:06:00.1', 0),
('0000:06:00.2', 1),
('0000:06:00.3', 2)]
ASSIGNED_MAC = '00:00:00:00:00:66'
PCI_SLOT = '0000:06:00.1'
WRONG_MAC = '00:00:00:00:00:67'
WRONG_PCI = "0000:06:00.6"
MAX_RATE = ip_link_support.IpLinkConstants.IP_LINK_CAPABILITY_RATE
MIN_RATE = ip_link_support.IpLinkConstants.IP_LINK_CAPABILITY_MIN_TX_RATE
def setUp(self):
super(TestESwitchManagerApi, self).setUp()
device_mappings = {'physnet1': ['p6p1']}
self.eswitch_mgr = esm.ESwitchManager()
self.addCleanup(self.cleanup)
self._set_eswitch_manager(self.eswitch_mgr, device_mappings)
@staticmethod
def cleanup():
if hasattr(esm.ESwitchManager, '_instance'):
del esm.ESwitchManager._instance
def _set_eswitch_manager(self, eswitch_mgr, device_mappings):
with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.PciOsWrapper.scan_vf_devices",
return_value=self.SCANNED_DEVICES), \
mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.PciOsWrapper.pf_device_exists",
return_value=True), \
mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.PciOsWrapper.is_assigned_vf",
return_value=True):
eswitch_mgr.discover_devices(device_mappings, None)
def test_discover_devices_with_device(self):
device_mappings = {'physnet1': ['p6p1', 'p6p2']}
with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.PciOsWrapper.pf_device_exists",
return_value=True), \
mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.ESwitchManager._create_emb_switch",
) as emb_switch:
self.eswitch_mgr.discover_devices(device_mappings, None)
self.assertTrue(emb_switch.called)
def test_discover_devices_without_device(self):
device_mappings = {'physnet1': ['p6p1', 'p6p2']}
with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.PciOsWrapper.pf_device_exists",
return_value=False), \
mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.ESwitchManager._create_emb_switch",
) as emb_switch:
self.eswitch_mgr.discover_devices(device_mappings, None)
self.assertFalse(emb_switch.called)
def test_get_assigned_devices_info(self):
with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.EmbSwitch.get_assigned_devices_info",
return_value=[(self.ASSIGNED_MAC, self.PCI_SLOT)]),\
mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"pci_lib.PciDeviceIPWrapper.link_show",
return_value=''):
result = self.eswitch_mgr.get_assigned_devices_info()
self.assertIn(self.ASSIGNED_MAC, list(result)[0])
self.assertIn(self.PCI_SLOT, list(result)[0])
def test_get_assigned_devices_info_multiple_nics_for_physnet(self):
device_mappings = {'physnet1': ['p6p1', 'p6p2']}
devices_info = {
'p6p1': [(self.ASSIGNED_MAC, self.PCI_SLOT)],
'p6p2': [(self.WRONG_MAC, self.WRONG_PCI)],
}
def get_assigned_devices_info(self):
return devices_info[self.dev_name]
self._set_eswitch_manager(self.eswitch_mgr, device_mappings)
with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.EmbSwitch.get_assigned_devices_info",
side_effect=get_assigned_devices_info,
autospec=True):
result = self.eswitch_mgr.get_assigned_devices_info()
self.assertIn(devices_info['p6p1'][0], list(result))
self.assertIn(devices_info['p6p2'][0], list(result))
def test_get_device_status_enable(self):
with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.EmbSwitch.get_pci_device",
return_value=self.ASSIGNED_MAC),\
mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.EmbSwitch.get_device_state",
return_value='enable'):
result = self.eswitch_mgr.get_device_state(self.ASSIGNED_MAC,
self.PCI_SLOT)
self.assertEqual('enable', result)
def test_get_device_status_disable(self):
with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.EmbSwitch.get_pci_device",
return_value=self.ASSIGNED_MAC),\
mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.EmbSwitch.get_device_state",
return_value='disable'):
result = self.eswitch_mgr.get_device_state(self.ASSIGNED_MAC,
self.PCI_SLOT)
self.assertEqual('disable', result)
def test_get_device_status_auto(self):
with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.EmbSwitch.get_pci_device",
return_value=self.ASSIGNED_MAC),\
mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.EmbSwitch.get_device_state",
return_value='auto'):
result = self.eswitch_mgr.get_device_state(self.ASSIGNED_MAC,
self.PCI_SLOT)
self.assertEqual('auto', result)
def test_get_device_status_mismatch(self):
with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.EmbSwitch.get_pci_device",
return_value=self.ASSIGNED_MAC),\
mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.EmbSwitch.get_device_state",
return_value='enable'):
with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.LOG.warning") as log_mock:
result = self.eswitch_mgr.get_device_state(self.WRONG_MAC,
self.PCI_SLOT)
log_mock.assert_called_with('device pci mismatch: '
'%(device_mac)s - %(pci_slot)s',
{'pci_slot': self.PCI_SLOT,
'device_mac': self.WRONG_MAC})
self.assertEqual('disable', result)
def test_set_device_status(self):
with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.EmbSwitch.get_pci_device",
return_value=self.ASSIGNED_MAC),\
mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.EmbSwitch.set_device_state"):
self.eswitch_mgr.set_device_state(self.ASSIGNED_MAC,
self.PCI_SLOT, True, False)
def test_set_device_max_rate(self):
with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.EmbSwitch.get_pci_device",
return_value=self.ASSIGNED_MAC) as get_pci_mock,\
mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.EmbSwitch.set_device_rate")\
as set_device_rate_mock:
self.eswitch_mgr.set_device_max_rate(self.ASSIGNED_MAC,
self.PCI_SLOT, 1000)
get_pci_mock.assert_called_once_with(self.PCI_SLOT)
set_device_rate_mock.assert_called_once_with(
self.PCI_SLOT, self.MAX_RATE, 1000)
def test_set_device_min_tx_rate(self):
with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.EmbSwitch.get_pci_device",
return_value=self.ASSIGNED_MAC) as get_pci_mock,\
mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.EmbSwitch.set_device_rate")\
as set_device_rate_mock:
self.eswitch_mgr.set_device_min_tx_rate(self.ASSIGNED_MAC,
self.PCI_SLOT, 1000)
get_pci_mock.assert_called_once_with(self.PCI_SLOT)
set_device_rate_mock.assert_called_once_with(
self.PCI_SLOT, self.MIN_RATE, 1000)
def test_set_device_status_mismatch(self):
with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.EmbSwitch.get_pci_device",
return_value=self.ASSIGNED_MAC),\
mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.EmbSwitch.set_device_state"):
with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.LOG.warning") as log_mock:
self.eswitch_mgr.set_device_state(self.WRONG_MAC,
self.PCI_SLOT, True, False)
log_mock.assert_called_with('device pci mismatch: '
'%(device_mac)s - %(pci_slot)s',
{'pci_slot': self.PCI_SLOT,
'device_mac': self.WRONG_MAC})
def _mock_device_exists(self, pci_slot, mac_address, expected_result):
with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.EmbSwitch.get_pci_device",
return_value=self.ASSIGNED_MAC):
result = self.eswitch_mgr.device_exists(mac_address,
pci_slot)
self.assertEqual(expected_result, result)
def test_device_exists_true(self):
self._mock_device_exists(self.PCI_SLOT,
self.ASSIGNED_MAC,
True)
def test_device_exists_false(self):
self._mock_device_exists(self.WRONG_PCI,
self.WRONG_MAC,
False)
def test_device_exists_mismatch(self):
with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.EmbSwitch.get_pci_device",
return_value=self.ASSIGNED_MAC):
with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.LOG.warning") as log_mock:
result = self.eswitch_mgr.device_exists(self.WRONG_MAC,
self.PCI_SLOT)
log_mock.assert_called_with('device pci mismatch: '
'%(device_mac)s - %(pci_slot)s',
{'pci_slot': self.PCI_SLOT,
'device_mac': self.WRONG_MAC})
self.assertFalse(result)
def test_clear_max_rate(self):
with mock.patch('neutron.plugins.ml2.drivers.mech_sriov.agent.'
'eswitch_manager.ESwitchManager._clear_rate') \
as clear_rate_mock:
self.eswitch_mgr.clear_max_rate(self.PCI_SLOT)
clear_rate_mock.assert_called_once_with(self.PCI_SLOT,
self.MAX_RATE)
def test_clear_min_tx_rate(self):
with mock.patch('neutron.plugins.ml2.drivers.mech_sriov.agent.'
'eswitch_manager.ESwitchManager._clear_rate') \
as clear_rate_mock:
self.eswitch_mgr.clear_min_tx_rate(self.PCI_SLOT)
clear_rate_mock.assert_called_once_with(self.PCI_SLOT,
self.MIN_RATE)
def test_process_emb_switch_without_device(self):
device_mappings = {'physnet1': ['p6p1', 'p6p2']}
phys_net = 'physnet1'
dev_name = 'p6p1'
self._set_eswitch_manager(self.eswitch_mgr, device_mappings)
with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.PciOsWrapper.pf_device_exists",
return_value=False), \
mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.ESwitchManager._create_emb_switch",
) as emb_switch:
self.eswitch_mgr._process_emb_switch_map(phys_net,
dev_name, {})
self.assertFalse(emb_switch.called)
def test_process_emb_switch_with_device(self):
device_mappings = {'physnet1': ['p6p1', 'p6p2']}
phys_net = 'physnet1'
dev_name = 'p6p3'
self._set_eswitch_manager(self.eswitch_mgr, device_mappings)
with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.PciOsWrapper.pf_device_exists",
return_value=True), \
mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.ESwitchManager._create_emb_switch",
) as emb_switch:
self.eswitch_mgr._process_emb_switch_map(phys_net,
dev_name, {})
self.assertTrue(emb_switch.called)
def _test_clear_rate(self, rate_type, pci_slot, passed, mac_address):
with mock.patch('neutron.plugins.ml2.drivers.mech_sriov.agent.'
'eswitch_manager.EmbSwitch.set_device_rate') \
as set_rate_mock, \
mock.patch('neutron.plugins.ml2.drivers.mech_sriov.agent.'
'pci_lib.PciDeviceIPWrapper.get_assigned_macs',
return_value=mac_address), \
mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"pci_lib.PciDeviceIPWrapper.link_show",
return_value=''), \
mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.PciOsWrapper.pf_device_exists",
return_value=True):
self.eswitch_mgr._clear_rate(pci_slot, rate_type)
if passed:
set_rate_mock.assert_called_once_with(pci_slot, rate_type, 0)
else:
self.assertFalse(set_rate_mock.called)
def test_clear_rate_max_rate_existing_pci_slot(self):
self._test_clear_rate(self.MAX_RATE, self.PCI_SLOT, passed=True,
mac_address={})
def test_clear_rate_max_rate_exist_and_assigned_pci(self):
self._test_clear_rate(self.MAX_RATE, self.PCI_SLOT, passed=False,
mac_address={0: self.ASSIGNED_MAC})
def test_clear_rate_max_rate_nonexisting_pci_slot(self):
self._test_clear_rate(self.MAX_RATE, self.WRONG_PCI, passed=False,
mac_address={})
def test_clear_rate_min_tx_rate_existing_pci_slot(self):
self._test_clear_rate(self.MIN_RATE, self.PCI_SLOT, passed=True,
mac_address={})
def test_clear_rate_min_tx_rate_exist_and_assigned_pci(self):
self._test_clear_rate(self.MIN_RATE, self.PCI_SLOT, passed=False,
mac_address={0: self.ASSIGNED_MAC})
def test_clear_rate_min_tx_rate_nonexisting_pci_slot(self):
self._test_clear_rate(self.MIN_RATE, self.WRONG_PCI, passed=False,
mac_address={})
def test_create_emb_switch(self):
DEVICES = [('0000:04:00.1', 0),
('0000:04:00.2', 1)]
with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.PciOsWrapper.scan_vf_devices",
side_effect=[[], DEVICES]), \
mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.PciOsWrapper.get_numvfs",
return_value=2):
physnet = 'test_create_emb_switch'
self.assertNotIn(physnet, self.eswitch_mgr.emb_switches_map)
# first time device will not be added as no VFs returned
self.eswitch_mgr._create_emb_switch(physnet, 'dev1', [])
self.assertNotIn(physnet, self.eswitch_mgr.emb_switches_map)
self.assertEqual({'dev1'}, self.eswitch_mgr.skipped_devices)
# second time device should be added with 2 VFs
self.eswitch_mgr._create_emb_switch(physnet, 'dev1', [])
self.assertIn(physnet, self.eswitch_mgr.emb_switches_map)
self.assertEqual(set(), self.eswitch_mgr.skipped_devices)
self.assertIn('0000:04:00.1', self.eswitch_mgr.pci_slot_map)
self.assertIn('0000:04:00.2', self.eswitch_mgr.pci_slot_map)
def test_create_emb_switch_zero_vfs(self):
with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.PciOsWrapper.scan_vf_devices",
return_value=[]), \
mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.PciOsWrapper.get_numvfs",
return_value=0):
physnet = 'test_create_emb_switch'
self.assertNotIn(physnet, self.eswitch_mgr.emb_switches_map)
# first time device will not be added
self.eswitch_mgr._create_emb_switch(physnet, 'dev1', [])
self.assertNotIn(physnet, self.eswitch_mgr.emb_switches_map)
self.assertEqual({'dev1'}, self.eswitch_mgr.skipped_devices)
# second time device should be added with 0 VFs
self.eswitch_mgr._create_emb_switch(physnet, 'dev1', [])
self.assertIn(physnet, self.eswitch_mgr.emb_switches_map)
self.assertEqual(set(), self.eswitch_mgr.skipped_devices)
class TestEmbSwitch(base.BaseTestCase):
DEV_NAME = "eth2"
PHYS_NET = "default"
ASSIGNED_MAC = '00:00:00:00:00:66'
PCI_SLOT = "0000:06:00.1"
WRONG_PCI_SLOT = "0000:06:00.4"
SCANNED_DEVICES = [('0000:06:00.1', 0),
('0000:06:00.2', 1),
('0000:06:00.3', 2)]
VF_TO_MAC_MAPPING = {0: '00:00:00:00:00:11',
1: '00:00:00:00:00:22',
2: '00:00:00:00:00:33'}
EXPECTED_MAC_TO_PCI = {
'00:00:00:00:00:11': '0000:06:00.1',
'00:00:00:00:00:22': '0000:06:00.2',
'00:00:00:00:00:33': '0000:06:00.3'}
def setUp(self):
super(TestEmbSwitch, self).setUp()
exclude_devices = set()
with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.PciOsWrapper.scan_vf_devices",
return_value=self.SCANNED_DEVICES):
self.emb_switch = esm.EmbSwitch(self.DEV_NAME, exclude_devices)
@mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.PciOsWrapper.scan_vf_devices",
return_value=[(PCI_SLOT, 0)])
def test_get_assigned_devices_info(self, *args):
emb_switch = esm.EmbSwitch(self.DEV_NAME, ())
with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent.pci_lib."
"PciDeviceIPWrapper.get_assigned_macs",
return_value={0: self.ASSIGNED_MAC}),\
mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.PciOsWrapper.is_assigned_vf",
return_value=True), \
mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"pci_lib.PciDeviceIPWrapper.link_show",
return_value=''):
result = emb_switch.get_assigned_devices_info()
self.assertIn(self.ASSIGNED_MAC, list(result)[0])
self.assertIn(self.PCI_SLOT, list(result)[0])
@mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.PciOsWrapper.scan_vf_devices",
return_value=SCANNED_DEVICES)
def test_get_assigned_devices_info_multiple_slots(self, *args):
emb_switch = esm.EmbSwitch(self.DEV_NAME, ())
with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent.pci_lib."
"PciDeviceIPWrapper.get_assigned_macs",
return_value=self.VF_TO_MAC_MAPPING),\
mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.PciOsWrapper.is_assigned_vf",
return_value=True),\
mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"pci_lib.PciDeviceIPWrapper.link_show",
return_value=''):
devices_info = emb_switch.get_assigned_devices_info()
for device_info in devices_info:
mac = device_info[0]
pci_slot = device_info[1]
self.assertEqual(
self.EXPECTED_MAC_TO_PCI[mac], pci_slot)
def test_get_assigned_devices_empty(self):
with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.PciOsWrapper.is_assigned_vf",
return_value=False), \
mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"pci_lib.PciDeviceIPWrapper.link_show",
return_value=''):
result = self.emb_switch.get_assigned_devices_info()
self.assertFalse(result)
def test_get_device_state_ok(self):
with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent.pci_lib."
"PciDeviceIPWrapper.get_vf_state",
return_value=False):
result = self.emb_switch.get_device_state(self.PCI_SLOT)
self.assertFalse(result)
def test_get_device_state_fail(self):
with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent.pci_lib."
"PciDeviceIPWrapper.get_vf_state",
return_value=False):
self.assertRaises(exc.InvalidPciSlotError,
self.emb_switch.get_device_state,
self.WRONG_PCI_SLOT)
def test_set_device_state_ok(self):
with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent.pci_lib."
"PciDeviceIPWrapper.set_vf_state"):
with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"pci_lib.LOG.warning") as log_mock:
self.emb_switch.set_device_state(self.PCI_SLOT, True, False)
self.assertEqual(0, log_mock.call_count)
def test_set_device_state_fail(self):
with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent.pci_lib."
"PciDeviceIPWrapper.set_vf_state"):
self.assertRaises(exc.InvalidPciSlotError,
self.emb_switch.set_device_state,
self.WRONG_PCI_SLOT, True, False)
def test_set_device_spoofcheck_ok(self):
with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent.pci_lib."
"PciDeviceIPWrapper.set_vf_spoofcheck") as \
set_vf_spoofcheck_mock:
self.emb_switch.set_device_spoofcheck(self.PCI_SLOT, True)
self.assertTrue(set_vf_spoofcheck_mock.called)
def test_set_device_spoofcheck_fail(self):
with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent.pci_lib."
"PciDeviceIPWrapper.set_vf_spoofcheck"):
self.assertRaises(exc.InvalidPciSlotError,
self.emb_switch.set_device_spoofcheck,
self.WRONG_PCI_SLOT, True)
def test_set_device_rate_ok(self):
with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent.pci_lib."
"PciDeviceIPWrapper.set_vf_rate") as pci_lib_mock:
self.emb_switch.set_device_rate(
self.PCI_SLOT,
ip_link_support.IpLinkConstants.IP_LINK_CAPABILITY_RATE, 2000)
pci_lib_mock.assert_called_with(
0, ip_link_support.IpLinkConstants.IP_LINK_CAPABILITY_RATE, 2)
def test_set_device_max_rate_ok2(self):
with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent.pci_lib."
"PciDeviceIPWrapper.set_vf_rate") as pci_lib_mock:
self.emb_switch.set_device_rate(
self.PCI_SLOT,
ip_link_support.IpLinkConstants.IP_LINK_CAPABILITY_RATE, 99)
pci_lib_mock.assert_called_with(
0, ip_link_support.IpLinkConstants.IP_LINK_CAPABILITY_RATE, 1)
def test_set_device_max_rate_rounded_ok(self):
with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent.pci_lib."
"PciDeviceIPWrapper.set_vf_rate") as pci_lib_mock:
self.emb_switch.set_device_rate(
self.PCI_SLOT,
ip_link_support.IpLinkConstants.IP_LINK_CAPABILITY_RATE, 2001)
pci_lib_mock.assert_called_with(
0, ip_link_support.IpLinkConstants.IP_LINK_CAPABILITY_RATE, 2)
def test_set_device_max_rate_rounded_ok2(self):
with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent.pci_lib."
"PciDeviceIPWrapper.set_vf_rate") as pci_lib_mock:
self.emb_switch.set_device_rate(
self.PCI_SLOT,
ip_link_support.IpLinkConstants.IP_LINK_CAPABILITY_RATE, 2499)
pci_lib_mock.assert_called_with(
0, ip_link_support.IpLinkConstants.IP_LINK_CAPABILITY_RATE, 2)
def test_set_device_max_rate_rounded_ok3(self):
with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent.pci_lib."
"PciDeviceIPWrapper.set_vf_rate") as pci_lib_mock:
self.emb_switch.set_device_rate(
self.PCI_SLOT,
ip_link_support.IpLinkConstants.IP_LINK_CAPABILITY_RATE, 2500)
pci_lib_mock.assert_called_with(
0, ip_link_support.IpLinkConstants.IP_LINK_CAPABILITY_RATE, 3)
def test_set_device_max_rate_disable(self):
with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent.pci_lib."
"PciDeviceIPWrapper.set_vf_rate") as pci_lib_mock:
self.emb_switch.set_device_rate(
self.PCI_SLOT,
ip_link_support.IpLinkConstants.IP_LINK_CAPABILITY_RATE, 0)
pci_lib_mock.assert_called_with(
0, ip_link_support.IpLinkConstants.IP_LINK_CAPABILITY_RATE, 0)
def test_set_device_max_rate_fail(self):
with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent.pci_lib."
"PciDeviceIPWrapper.set_vf_rate"):
self.assertRaises(
exc.InvalidPciSlotError,
self.emb_switch.set_device_rate,
self.WRONG_PCI_SLOT,
ip_link_support.IpLinkConstants.IP_LINK_CAPABILITY_RATE, 1000)
def test_get_pci_device(self):
with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent.pci_lib."
"PciDeviceIPWrapper.get_assigned_macs",
return_value={0: self.ASSIGNED_MAC}),\
mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.PciOsWrapper.is_assigned_vf",
return_value=True),\
mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"pci_lib.PciDeviceIPWrapper.link_show",
return_value=''):
result = self.emb_switch.get_pci_device(self.PCI_SLOT)
self.assertEqual(self.ASSIGNED_MAC, result)
def test_get_pci_device_fail(self):
with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent.pci_lib."
"PciDeviceIPWrapper.get_assigned_macs",
return_value=[self.ASSIGNED_MAC]),\
mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.PciOsWrapper.is_assigned_vf",
return_value=True):
result = self.emb_switch.get_pci_device(self.WRONG_PCI_SLOT)
self.assertIsNone(result)
def test_get_pci_list(self):
result = self.emb_switch.get_pci_slot_list()
self.assertEqual([tup[0] for tup in self.SCANNED_DEVICES],
sorted(result))
class TestPciOsWrapper(base.BaseTestCase):
DEV_NAME = "p7p1"
VF_INDEX = 1
DIR_CONTENTS = [
"mlx4_port1",
"virtfn0",
"virtfn1",
"virtfn2"
]
DIR_CONTENTS_NO_MATCH = [
"mlx4_port1",
"mlx4_port1"
]
LINKS = {
"virtfn0": "../0000:04:00.1",
"virtfn1": "../0000:04:00.2",
"virtfn2": "../0000:04:00.3"
}
PCI_SLOTS = [
('0000:04:00.1', 0),
('0000:04:00.2', 1),
('0000:04:00.3', 2)
]
def test_scan_vf_devices(self):
def _get_link(file_path):
file_name = os.path.basename(file_path)
return self.LINKS[file_name]
with mock.patch("os.path.isdir", return_value=True),\
mock.patch("os.listdir", return_value=self.DIR_CONTENTS),\
mock.patch("os.path.islink", return_value=True),\
mock.patch("os.readlink", side_effect=_get_link):
result = esm.PciOsWrapper.scan_vf_devices(self.DEV_NAME)
self.assertEqual(self.PCI_SLOTS, result)
def test_scan_vf_devices_no_dir(self):
with mock.patch("os.path.isdir", return_value=False):
self.assertRaises(exc.InvalidDeviceError,
esm.PciOsWrapper.scan_vf_devices,
self.DEV_NAME)
def test_scan_vf_devices_no_content(self):
with mock.patch("os.path.isdir", return_value=True),\
mock.patch("os.listdir", return_value=[]):
self.assertEqual([],
esm.PciOsWrapper.scan_vf_devices(self.DEV_NAME))
def test_scan_vf_devices_no_match(self):
with mock.patch("os.path.isdir", return_value=True),\
mock.patch("os.listdir",
return_value=self.DIR_CONTENTS_NO_MATCH):
self.assertEqual([],
esm.PciOsWrapper.scan_vf_devices(self.DEV_NAME))
@mock.patch("os.listdir", side_effect=OSError())
def test_is_assigned_vf_true(self, *args):
with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent."
"eswitch_manager.PciOsWrapper.pf_device_exists",
return_value=True):
self.assertTrue(esm.PciOsWrapper.is_assigned_vf(
self.DEV_NAME, self.VF_INDEX, ''))
@mock.patch("os.path.exists", return_value=True)
@mock.patch("os.listdir", return_value=[DEV_NAME, "eth1"])
@mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent.pci_lib."
"PciDeviceIPWrapper.is_macvtap_assigned", return_value=False)
def test_is_assigned_vf_false(self, *args):
self.assertFalse(esm.PciOsWrapper.is_assigned_vf(
self.DEV_NAME, self.VF_INDEX, ''))
@mock.patch("os.path.exists", return_value=True)
@mock.patch("os.listdir", return_value=["eth0", "eth1"])
@mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent.pci_lib."
"PciDeviceIPWrapper.is_macvtap_assigned", return_value=True)
def test_is_assigned_vf_macvtap(
self, mock_is_macvtap_assigned, *args):
esm.PciOsWrapper.is_assigned_vf(self.DEV_NAME, self.VF_INDEX, '')
mock_is_macvtap_assigned.called_with(self.VF_INDEX, "eth0")
@mock.patch("os.path.exists", return_value=True)
@mock.patch("os.listdir", side_effect=OSError())
@mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent.pci_lib."
"PciDeviceIPWrapper.is_macvtap_assigned")
def test_is_assigned_vf_macvtap_failure(
self, mock_is_macvtap_assigned, *args):
esm.PciOsWrapper.is_assigned_vf(self.DEV_NAME, self.VF_INDEX, '')
self.assertFalse(mock_is_macvtap_assigned.called)
@mock.patch("os.path.exists", return_value=False)
@mock.patch("os.listdir", return_value=["eth0", "eth1"])
def test_is_assigned_vf_pf_disappeared(self, list_dir_mock, *args):
self.assertFalse(esm.PciOsWrapper.is_assigned_vf(
self.DEV_NAME, self.VF_INDEX, ''))
self.assertFalse(list_dir_mock.called)
def test_pf_device_exists_with_no_dir(self):
with mock.patch("os.path.isdir", return_value=False):
self.assertFalse(esm.PciOsWrapper.pf_device_exists('p6p1'))
def test_pf_device_exists_with_dir(self):
with mock.patch("os.path.isdir", return_value=True):
self.assertTrue(esm.PciOsWrapper.pf_device_exists('p6p1'))
def test_get_numvfs(self):
with mock.patch("six.moves.builtins.open",
mock.mock_open(read_data="63")) as mock_open:
self.assertEqual(63, esm.PciOsWrapper.get_numvfs('dev1'))
mock_open.assert_called_once_with(
esm.PciOsWrapper.NUMVFS_PATH % 'dev1')
def test_get_numvfs_no_file(self):
with mock.patch("six.moves.builtins.open",
side_effect=IOError()) as mock_open:
self.assertEqual(-1, esm.PciOsWrapper.get_numvfs('dev1'))
mock_open.assert_called_once_with(
esm.PciOsWrapper.NUMVFS_PATH % 'dev1')