366 lines
16 KiB
Python
366 lines
16 KiB
Python
# Copyright 2014 Mellanox Technologies, Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import contextlib
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import os
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import mock
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import testtools
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from neutron.plugins.sriovnicagent.common import exceptions as exc
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from neutron.plugins.sriovnicagent import eswitch_manager as esm
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from neutron.tests import base
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class TestCreateESwitchManager(base.BaseTestCase):
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SCANNED_DEVICES = [('0000:06:00.1', 0),
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('0000:06:00.2', 1),
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('0000:06:00.3', 2)]
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def test_create_eswitch_mgr_fail(self):
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device_mappings = {'physnet1': 'p6p1'}
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with contextlib.nested(
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mock.patch("neutron.plugins.sriovnicagent.eswitch_manager."
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"PciOsWrapper.scan_vf_devices",
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side_effect=exc.InvalidDeviceError(dev_name="p6p1",
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reason="device"
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" not found")),
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mock.patch("neutron.plugins.sriovnicagent.eswitch_manager."
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"PciOsWrapper.is_assigned_vf",
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return_value=True)):
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with testtools.ExpectedException(exc.InvalidDeviceError):
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esm.ESwitchManager(device_mappings, None, None)
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def test_create_eswitch_mgr_ok(self):
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device_mappings = {'physnet1': 'p6p1'}
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with contextlib.nested(
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mock.patch("neutron.plugins.sriovnicagent.eswitch_manager."
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"PciOsWrapper.scan_vf_devices",
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return_value=self.SCANNED_DEVICES),
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mock.patch("neutron.plugins.sriovnicagent.eswitch_manager."
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"PciOsWrapper.is_assigned_vf",
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return_value=True)):
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esm.ESwitchManager(device_mappings, None, None)
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class TestESwitchManagerApi(base.BaseTestCase):
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SCANNED_DEVICES = [('0000:06:00.1', 0),
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('0000:06:00.2', 1),
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('0000:06:00.3', 2)]
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ASSIGNED_MAC = '00:00:00:00:00:66'
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PCI_SLOT = '0000:06:00.1'
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WRONG_MAC = '00:00:00:00:00:67'
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WRONG_PCI = "0000:06:00.6"
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def setUp(self):
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super(TestESwitchManagerApi, self).setUp()
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device_mappings = {'physnet1': 'p6p1'}
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with contextlib.nested(
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mock.patch("neutron.plugins.sriovnicagent.eswitch_manager."
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"PciOsWrapper.scan_vf_devices",
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return_value=self.SCANNED_DEVICES),
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mock.patch("neutron.plugins.sriovnicagent.eswitch_manager."
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"PciOsWrapper.is_assigned_vf",
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return_value=True)):
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self.eswitch_mgr = esm.ESwitchManager(device_mappings, None, None)
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def test_get_assigned_devices(self):
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with mock.patch("neutron.plugins.sriovnicagent.eswitch_manager."
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"EmbSwitch.get_assigned_devices",
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return_value=[self.ASSIGNED_MAC]):
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result = self.eswitch_mgr.get_assigned_devices()
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self.assertEqual(set([self.ASSIGNED_MAC]), result)
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def test_get_device_status_true(self):
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with contextlib.nested(
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mock.patch("neutron.plugins.sriovnicagent.eswitch_manager."
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"EmbSwitch.get_pci_device",
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return_value=self.ASSIGNED_MAC),
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mock.patch("neutron.plugins.sriovnicagent.eswitch_manager."
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"EmbSwitch.get_device_state",
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return_value=True)):
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result = self.eswitch_mgr.get_device_state(self.ASSIGNED_MAC,
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self.PCI_SLOT)
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self.assertTrue(result)
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def test_get_device_status_false(self):
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with contextlib.nested(
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mock.patch("neutron.plugins.sriovnicagent.eswitch_manager."
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"EmbSwitch.get_pci_device",
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return_value=self.ASSIGNED_MAC),
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mock.patch("neutron.plugins.sriovnicagent.eswitch_manager."
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"EmbSwitch.get_device_state",
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return_value=False)):
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result = self.eswitch_mgr.get_device_state(self.ASSIGNED_MAC,
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self.PCI_SLOT)
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self.assertFalse(result)
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def test_get_device_status_mismatch(self):
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with contextlib.nested(
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mock.patch("neutron.plugins.sriovnicagent.eswitch_manager."
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"EmbSwitch.get_pci_device",
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return_value=self.ASSIGNED_MAC),
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mock.patch("neutron.plugins.sriovnicagent.eswitch_manager."
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"EmbSwitch.get_device_state",
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return_value=True)):
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with mock.patch("neutron.plugins.sriovnicagent.eswitch_manager."
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"LOG.warning") as log_mock:
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result = self.eswitch_mgr.get_device_state(self.WRONG_MAC,
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self.PCI_SLOT)
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log_mock.assert_called_with('device pci mismatch: '
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'%(device_mac)s - %(pci_slot)s',
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{'pci_slot': self.PCI_SLOT,
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'device_mac': self.WRONG_MAC})
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self.assertFalse(result)
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def test_set_device_status(self):
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with contextlib.nested(
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mock.patch("neutron.plugins.sriovnicagent.eswitch_manager."
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"EmbSwitch.get_pci_device",
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return_value=self.ASSIGNED_MAC),
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mock.patch("neutron.plugins.sriovnicagent.eswitch_manager."
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"EmbSwitch.set_device_state")):
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self.eswitch_mgr.set_device_state(self.ASSIGNED_MAC,
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self.PCI_SLOT, True)
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def test_set_device_status_mismatch(self):
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with contextlib.nested(
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mock.patch("neutron.plugins.sriovnicagent.eswitch_manager."
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"EmbSwitch.get_pci_device",
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return_value=self.ASSIGNED_MAC),
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mock.patch("neutron.plugins.sriovnicagent.eswitch_manager."
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"EmbSwitch.set_device_state")):
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with mock.patch("neutron.plugins.sriovnicagent.eswitch_manager."
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"LOG.warning") as log_mock:
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self.eswitch_mgr.set_device_state(self.WRONG_MAC,
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self.PCI_SLOT, True)
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log_mock.assert_called_with('device pci mismatch: '
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'%(device_mac)s - %(pci_slot)s',
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{'pci_slot': self.PCI_SLOT,
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'device_mac': self.WRONG_MAC})
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def _mock_device_exists(self, pci_slot, mac_address, expected_result):
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with mock.patch("neutron.plugins.sriovnicagent.eswitch_manager."
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"EmbSwitch.get_pci_device",
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return_value=self.ASSIGNED_MAC):
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result = self.eswitch_mgr.device_exists(mac_address,
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pci_slot)
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self.assertEqual(expected_result, result)
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def test_device_exists_true(self):
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self._mock_device_exists(self.PCI_SLOT,
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self.ASSIGNED_MAC,
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True)
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def test_device_exists_false(self):
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self._mock_device_exists(self.WRONG_PCI,
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self.WRONG_MAC,
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False)
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def test_device_exists_mismatch(self):
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with mock.patch("neutron.plugins.sriovnicagent.eswitch_manager."
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"EmbSwitch.get_pci_device",
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return_value=self.ASSIGNED_MAC):
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with mock.patch("neutron.plugins.sriovnicagent.eswitch_manager."
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"LOG.warning") as log_mock:
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result = self.eswitch_mgr.device_exists(self.WRONG_MAC,
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self.PCI_SLOT)
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log_mock.assert_called_with('device pci mismatch: '
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'%(device_mac)s - %(pci_slot)s',
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{'pci_slot': self.PCI_SLOT,
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'device_mac': self.WRONG_MAC})
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self.assertFalse(result)
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class TestEmbSwitch(base.BaseTestCase):
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DEV_NAME = "eth2"
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PHYS_NET = "default"
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ASSIGNED_MAC = '00:00:00:00:00:66'
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PCI_SLOT = "0000:06:00.1"
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WRONG_PCI_SLOT = "0000:06:00.4"
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SCANNED_DEVICES = [('0000:06:00.1', 0),
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('0000:06:00.2', 1),
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('0000:06:00.3', 2)]
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def setUp(self):
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super(TestEmbSwitch, self).setUp()
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exclude_devices = set()
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with mock.patch("neutron.plugins.sriovnicagent.eswitch_manager."
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"PciOsWrapper.scan_vf_devices",
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return_value=self.SCANNED_DEVICES):
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self.emb_switch = esm.EmbSwitch(self.PHYS_NET, self.DEV_NAME,
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exclude_devices, None)
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def test_get_assigned_devices(self):
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with contextlib.nested(
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mock.patch("neutron.plugins.sriovnicagent.pci_lib."
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"PciDeviceIPWrapper.get_assigned_macs",
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return_value=[self.ASSIGNED_MAC]),
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mock.patch("neutron.plugins.sriovnicagent.eswitch_manager."
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"PciOsWrapper.is_assigned_vf",
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return_value=True)):
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result = self.emb_switch.get_assigned_devices()
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self.assertEqual([self.ASSIGNED_MAC], result)
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def test_get_assigned_devices_empty(self):
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with mock.patch("neutron.plugins.sriovnicagent.eswitch_manager."
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"PciOsWrapper.is_assigned_vf",
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return_value=False):
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result = self.emb_switch.get_assigned_devices()
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self.assertFalse(result)
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def test_get_device_state_ok(self):
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with mock.patch("neutron.plugins.sriovnicagent.pci_lib."
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"PciDeviceIPWrapper.get_vf_state",
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return_value=False):
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result = self.emb_switch.get_device_state(self.PCI_SLOT)
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self.assertFalse(result)
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def test_get_device_state_fail(self):
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with mock.patch("neutron.plugins.sriovnicagent.pci_lib."
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"PciDeviceIPWrapper.get_vf_state",
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return_value=False):
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self.assertRaises(exc.InvalidPciSlotError,
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self.emb_switch.get_device_state,
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self.WRONG_PCI_SLOT)
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def test_set_device_state_ok(self):
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with mock.patch("neutron.plugins.sriovnicagent.pci_lib."
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"PciDeviceIPWrapper.set_vf_state"):
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with mock.patch("neutron.plugins.sriovnicagent.pci_lib.LOG."
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"warning") as log_mock:
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self.emb_switch.set_device_state(self.PCI_SLOT, True)
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self.assertEqual(0, log_mock.call_count)
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def test_set_device_state_fail(self):
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with mock.patch("neutron.plugins.sriovnicagent.pci_lib."
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"PciDeviceIPWrapper.set_vf_state"):
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self.assertRaises(exc.InvalidPciSlotError,
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self.emb_switch.set_device_state,
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self.WRONG_PCI_SLOT, True)
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def test_get_pci_device(self):
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with contextlib.nested(
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mock.patch("neutron.plugins.sriovnicagent.pci_lib."
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"PciDeviceIPWrapper.get_assigned_macs",
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return_value=[self.ASSIGNED_MAC]),
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mock.patch("neutron.plugins.sriovnicagent.eswitch_manager."
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"PciOsWrapper.is_assigned_vf",
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return_value=True)):
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result = self.emb_switch.get_pci_device(self.PCI_SLOT)
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self.assertEqual(self.ASSIGNED_MAC, result)
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def test_get_pci_device_fail(self):
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with contextlib.nested(
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mock.patch("neutron.plugins.sriovnicagent.pci_lib."
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"PciDeviceIPWrapper.get_assigned_macs",
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return_value=[self.ASSIGNED_MAC]),
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mock.patch("neutron.plugins.sriovnicagent.eswitch_manager."
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"PciOsWrapper.is_assigned_vf",
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return_value=True)):
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result = self.emb_switch.get_pci_device(self.WRONG_PCI_SLOT)
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self.assertIsNone(result)
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def test_get_pci_list(self):
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result = self.emb_switch.get_pci_slot_list()
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self.assertEqual([tup[0] for tup in self.SCANNED_DEVICES],
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sorted(result))
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class TestPciOsWrapper(base.BaseTestCase):
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DEV_NAME = "p7p1"
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VF_INDEX = 1
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DIR_CONTENTS = [
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"mlx4_port1",
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"virtfn0",
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"virtfn1",
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"virtfn2"
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]
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DIR_CONTENTS_NO_MATCH = [
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"mlx4_port1",
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"mlx4_port1"
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]
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LINKS = {
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"virtfn0": "../0000:04:00.1",
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"virtfn1": "../0000:04:00.2",
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"virtfn2": "../0000:04:00.3"
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}
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PCI_SLOTS = [
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('0000:04:00.1', 0),
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('0000:04:00.2', 1),
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('0000:04:00.3', 2)
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]
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def test_scan_vf_devices(self):
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def _get_link(file_path):
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file_name = os.path.basename(file_path)
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return self.LINKS[file_name]
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with contextlib.nested(
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mock.patch("os.path.isdir",
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return_value=True),
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mock.patch("os.listdir",
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return_value=self.DIR_CONTENTS),
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mock.patch("os.path.islink",
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return_value=True),
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mock.patch("os.readlink",
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side_effect=_get_link),):
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result = esm.PciOsWrapper.scan_vf_devices(self.DEV_NAME)
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self.assertEqual(self.PCI_SLOTS, result)
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def test_scan_vf_devices_no_dir(self):
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with mock.patch("os.path.isdir", return_value=False):
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self.assertRaises(exc.InvalidDeviceError,
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esm.PciOsWrapper.scan_vf_devices,
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self.DEV_NAME)
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def test_scan_vf_devices_no_content(self):
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with contextlib.nested(
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mock.patch("os.path.isdir",
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return_value=True),
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mock.patch("os.listdir",
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return_value=[])):
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self.assertRaises(exc.InvalidDeviceError,
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esm.PciOsWrapper.scan_vf_devices,
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self.DEV_NAME)
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def test_scan_vf_devices_no_match(self):
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with contextlib.nested(
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mock.patch("os.path.isdir",
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return_value=True),
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mock.patch("os.listdir",
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return_value=self.DIR_CONTENTS_NO_MATCH)):
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self.assertRaises(exc.InvalidDeviceError,
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esm.PciOsWrapper.scan_vf_devices,
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self.DEV_NAME)
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def _mock_assign_vf(self, dir_exists):
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with mock.patch("os.path.isdir",
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return_value=dir_exists):
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result = esm.PciOsWrapper.is_assigned_vf(self.DEV_NAME,
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self.VF_INDEX)
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self.assertEqual(not dir_exists, result)
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def test_is_assigned_vf_true(self):
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self._mock_assign_vf(True)
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def test_is_assigned_vf_false(self):
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self._mock_assign_vf(False)
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