254 lines
9.9 KiB
Python
254 lines
9.9 KiB
Python
# Copyright (c) 2013 Intel, Inc.
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# Copyright (c) 2012 OpenStack Foundation
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import glob
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import os
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import fixtures
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import mock
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from nova import exception
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from nova.pci import utils
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from nova import test
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class PciDeviceMatchTestCase(test.NoDBTestCase):
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def setUp(self):
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super(PciDeviceMatchTestCase, self).setUp()
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self.fake_pci_1 = {'vendor_id': 'v1',
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'device_id': 'd1',
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'capabilities_network': ['cap1', 'cap2', 'cap3']}
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def test_single_spec_match(self):
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self.assertTrue(utils.pci_device_prop_match(
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self.fake_pci_1, [{'vendor_id': 'v1', 'device_id': 'd1'}]))
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self.assertTrue(utils.pci_device_prop_match(
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self.fake_pci_1, [{'vendor_id': 'V1', 'device_id': 'D1'}]))
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def test_multiple_spec_match(self):
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self.assertTrue(utils.pci_device_prop_match(
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self.fake_pci_1,
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[{'vendor_id': 'v1', 'device_id': 'd1'},
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{'vendor_id': 'v3', 'device_id': 'd3'}]))
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def test_spec_dismatch(self):
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self.assertFalse(utils.pci_device_prop_match(
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self.fake_pci_1,
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[{'vendor_id': 'v4', 'device_id': 'd4'},
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{'vendor_id': 'v3', 'device_id': 'd3'}]))
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def test_spec_extra_key(self):
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self.assertFalse(utils.pci_device_prop_match(
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self.fake_pci_1,
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[{'vendor_id': 'v1', 'device_id': 'd1', 'wrong_key': 'k1'}]))
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def test_spec_list(self):
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self.assertTrue(utils.pci_device_prop_match(
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self.fake_pci_1, [{'vendor_id': 'v1', 'device_id': 'd1',
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'capabilities_network': ['cap1', 'cap2',
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'cap3']}]))
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self.assertTrue(utils.pci_device_prop_match(
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self.fake_pci_1, [{'vendor_id': 'v1', 'device_id': 'd1',
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'capabilities_network': ['cap3', 'cap1']}]))
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def test_spec_list_no_matching(self):
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self.assertFalse(utils.pci_device_prop_match(
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self.fake_pci_1, [{'vendor_id': 'v1', 'device_id': 'd1',
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'capabilities_network': ['cap1', 'cap33']}]))
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def test_spec_list_wrong_type(self):
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self.assertFalse(utils.pci_device_prop_match(
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self.fake_pci_1, [{'vendor_id': 'v1', 'device_id': ['d1']}]))
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class PciDeviceAddressParserTestCase(test.NoDBTestCase):
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def test_parse_address(self):
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self.parse_result = utils.parse_address("0000:04:12.6")
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self.assertEqual(self.parse_result, ('0000', '04', '12', '6'))
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def test_parse_address_wrong(self):
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self.assertRaises(exception.PciDeviceWrongAddressFormat,
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utils.parse_address, "0000:04.12:6")
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def test_parse_address_invalid_character(self):
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self.assertRaises(exception.PciDeviceWrongAddressFormat,
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utils.parse_address, "0000:h4.12:6")
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class GetFunctionByIfnameTestCase(test.NoDBTestCase):
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@mock.patch('os.path.isdir', return_value=True)
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@mock.patch.object(os, 'readlink')
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def test_virtual_function(self, mock_readlink, *args):
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mock_readlink.return_value = '../../../0000.00.00.1'
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with mock.patch('builtins.open', side_effect=IOError()):
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address, physical_function = utils.get_function_by_ifname('eth0')
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self.assertEqual(address, '0000.00.00.1')
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self.assertFalse(physical_function)
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@mock.patch('os.path.isdir', return_value=True)
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@mock.patch.object(os, 'readlink')
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def test_physical_function(self, mock_readlink, *args):
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ifname = 'eth0'
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totalvf_path = "/sys/class/net/%s/device/%s" % (ifname,
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utils._SRIOV_TOTALVFS)
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mock_readlink.return_value = '../../../0000:00:00.1'
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with self.patch_open(totalvf_path, '4') as mock_open:
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address, physical_function = utils.get_function_by_ifname('eth0')
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self.assertEqual(address, '0000:00:00.1')
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self.assertTrue(physical_function)
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mock_open.assert_called_once_with(totalvf_path)
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@mock.patch('os.path.isdir', return_value=False)
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def test_exception(self, *args):
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address, physical_function = utils.get_function_by_ifname('lo')
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self.assertIsNone(address)
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self.assertFalse(physical_function)
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class IsPhysicalFunctionTestCase(test.NoDBTestCase):
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def setUp(self):
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super(IsPhysicalFunctionTestCase, self).setUp()
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self.pci_args = utils.get_pci_address_fields('0000:00:00.1')
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@mock.patch('os.path.isdir', return_value=True)
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def test_virtual_function(self, *args):
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with mock.patch('builtins.open', side_effect=IOError()):
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self.assertFalse(utils.is_physical_function(*self.pci_args))
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@mock.patch('os.path.isdir', return_value=True)
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def test_physical_function(self, *args):
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with mock.patch('builtins.open', mock.mock_open(read_data='4')):
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self.assertTrue(utils.is_physical_function(*self.pci_args))
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@mock.patch('os.path.isdir', return_value=False)
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def test_exception(self, *args):
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self.assertFalse(utils.is_physical_function(*self.pci_args))
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class GetIfnameByPciAddressTestCase(test.NoDBTestCase):
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def setUp(self):
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super(GetIfnameByPciAddressTestCase, self).setUp()
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self.pci_address = '0000:00:00.1'
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@mock.patch.object(os, 'listdir')
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def test_physical_function_inferface_name(self, mock_listdir):
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mock_listdir.return_value = ['foo', 'bar']
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ifname = utils.get_ifname_by_pci_address(
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self.pci_address, pf_interface=True)
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self.assertEqual(ifname, 'bar')
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@mock.patch.object(os, 'listdir')
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def test_virtual_function_inferface_name(self, mock_listdir):
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mock_listdir.return_value = ['foo', 'bar']
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ifname = utils.get_ifname_by_pci_address(
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self.pci_address, pf_interface=False)
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self.assertEqual(ifname, 'bar')
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@mock.patch.object(os, 'listdir')
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def test_exception(self, mock_listdir):
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mock_listdir.side_effect = OSError('No such file or directory')
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self.assertRaises(
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exception.PciDeviceNotFoundById,
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utils.get_ifname_by_pci_address,
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self.pci_address
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)
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class GetMacByPciAddressTestCase(test.NoDBTestCase):
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def setUp(self):
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super(GetMacByPciAddressTestCase, self).setUp()
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self.pci_address = '0000:07:00.1'
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self.if_name = 'enp7s0f1'
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self.tmpdir = self.useFixture(fixtures.TempDir())
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self.fake_file = os.path.join(self.tmpdir.path, "address")
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with open(self.fake_file, "w") as f:
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f.write("a0:36:9f:72:00:00\n")
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@mock.patch.object(os, 'listdir')
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@mock.patch.object(os.path, 'join')
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def test_get_mac(self, mock_join, mock_listdir):
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mock_listdir.return_value = [self.if_name]
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mock_join.return_value = self.fake_file
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mac = utils.get_mac_by_pci_address(self.pci_address)
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mock_join.assert_called_once_with(
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"/sys/bus/pci/devices/%s/net" % self.pci_address, self.if_name,
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"address")
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self.assertEqual("a0:36:9f:72:00:00", mac)
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@mock.patch.object(os, 'listdir')
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@mock.patch.object(os.path, 'join')
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def test_get_mac_fails(self, mock_join, mock_listdir):
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os.unlink(self.fake_file)
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mock_listdir.return_value = [self.if_name]
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mock_join.return_value = self.fake_file
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self.assertRaises(
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exception.PciDeviceNotFoundById,
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utils.get_mac_by_pci_address, self.pci_address)
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@mock.patch.object(os, 'listdir')
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@mock.patch.object(os.path, 'join')
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def test_get_mac_fails_empty(self, mock_join, mock_listdir):
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with open(self.fake_file, "w") as f:
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f.truncate(0)
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mock_listdir.return_value = [self.if_name]
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mock_join.return_value = self.fake_file
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self.assertRaises(
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exception.PciDeviceNotFoundById,
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utils.get_mac_by_pci_address, self.pci_address)
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@mock.patch.object(os, 'listdir')
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@mock.patch.object(os.path, 'join')
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def test_get_physical_function_mac(self, mock_join, mock_listdir):
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mock_listdir.return_value = [self.if_name]
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mock_join.return_value = self.fake_file
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mac = utils.get_mac_by_pci_address(self.pci_address, pf_interface=True)
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mock_join.assert_called_once_with(
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"/sys/bus/pci/devices/%s/physfn/net" % self.pci_address,
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self.if_name, "address")
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self.assertEqual("a0:36:9f:72:00:00", mac)
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class GetVfNumByPciAddressTestCase(test.NoDBTestCase):
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def setUp(self):
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super(GetVfNumByPciAddressTestCase, self).setUp()
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self.pci_address = '0000:00:00.1'
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self.paths = [
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'/sys/bus/pci/devices/0000:00:00.1/physfn/virtfn3',
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]
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@mock.patch.object(os, 'readlink')
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@mock.patch.object(glob, 'iglob')
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def test_vf_number_found(self, mock_iglob, mock_readlink):
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mock_iglob.return_value = self.paths
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mock_readlink.return_value = '../../0000:00:00.1'
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vf_num = utils.get_vf_num_by_pci_address(self.pci_address)
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self.assertEqual(vf_num, '3')
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@mock.patch.object(os, 'readlink')
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@mock.patch.object(glob, 'iglob')
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def test_vf_number_not_found(self, mock_iglob, mock_readlink):
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mock_iglob.return_value = self.paths
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mock_readlink.return_value = '../../0000:00:00.2'
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self.assertRaises(
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exception.PciDeviceNotFoundById,
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utils.get_vf_num_by_pci_address,
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self.pci_address
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)
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