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# -*- coding: utf-8 -*-
# Copyright 2014 Red Hat, Inc.
#
# 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 os.path
import random
import shutil
import tempfile
import yaml
from os_net_config.tests import base
from os_net_config import utils
from oslo_concurrency import processutils
_PCI_OUTPUT = '''driver: e1000e
version: 3.2.6-k
firmware-version: 0.13-3
expansion-rom-version:
bus-info: 0000:00:19.0
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: no
'''
class TestUtils(base.TestCase):
def setUp(self):
super(TestUtils, self).setUp()
rand = str(int(random.random() * 100000))
utils._DPDK_MAPPING_FILE = '/tmp/dpdk_mapping_' + rand + '.yaml'
def tearDown(self):
super(TestUtils, self).tearDown()
if os.path.isfile(utils._DPDK_MAPPING_FILE):
os.remove(utils._DPDK_MAPPING_FILE)
def test_ordered_active_nics(self):
tmpdir = tempfile.mkdtemp()
self.stubs.Set(utils, '_SYS_CLASS_NET', tmpdir)
def test_is_active_nic(interface_name):
return True
self.stubs.Set(utils, '_is_active_nic', test_is_active_nic)
for nic in ['a1', 'em1', 'em2', 'eth2', 'z1',
'enp8s0', 'enp10s0', 'enp1s0f0']:
with open(os.path.join(tmpdir, nic), 'w') as f:
f.write(nic)
nics = utils.ordered_active_nics()
self.assertEqual('em1', nics[0])
self.assertEqual('em2', nics[1])
self.assertEqual('eth2', nics[2])
self.assertEqual('a1', nics[3])
self.assertEqual('enp1s0f0', nics[4])
self.assertEqual('enp8s0', nics[5])
self.assertEqual('enp10s0', nics[6])
self.assertEqual('z1', nics[7])
shutil.rmtree(tmpdir)
def test_get_pci_address_success(self):
def test_execute(name, dummy1, dummy2=None, dummy3=None):
if 'ethtool' in name:
out = _PCI_OUTPUT
return out, None
self.stubs.Set(processutils, 'execute', test_execute)
pci = utils._get_pci_address('nic2', False)
self.assertEqual('0000:00:19.0', pci)
def test_get_pci_address_exception(self):
def test_execute(name, dummy1, dummy2=None, dummy3=None):
if 'ethtool' in name:
raise processutils.ProcessExecutionError
self.stubs.Set(processutils, 'execute', test_execute)
pci = utils._get_pci_address('nic2', False)
self.assertEqual(None, pci)
def test_get_pci_address_error(self):
def test_execute(name, dummy1, dummy2=None, dummy3=None):
if 'ethtool' in name:
return None, 'Error'
self.stubs.Set(processutils, 'execute', test_execute)
pci = utils._get_pci_address('nic2', False)
self.assertEqual(None, pci)
def test_bind_dpdk_interfaces(self):
def test_execute(name, dummy1, dummy2=None, dummy3=None):
if 'ethtool' in name:
out = _PCI_OUTPUT
return out, None
if 'driverctl' in name:
return None, None
self.stubs.Set(processutils, 'execute', test_execute)
utils.bind_dpdk_interfaces('nic2', 'vfio-pci', False)
def test_bind_dpdk_interfaces_fail(self):
def test_execute(name, dummy1, dummy2=None, dummy3=None):
if 'ethtool' in name:
out = _PCI_OUTPUT
return out, None
if 'driverctl' in name:
return None, 'Error'
self.stubs.Set(processutils, 'execute', test_execute)
self.assertRaises(utils.OvsDpdkBindException,
utils.bind_dpdk_interfaces, 'nic2', 'vfio-pci',
False)
def test_update_dpdk_map_new(self):
utils._update_dpdk_map('eth1', '0000:03:00.0', 'vfio-pci')
try:
contents = utils.get_file_data(utils._DPDK_MAPPING_FILE)
except IOError:
pass
dpdk_map = yaml.load(contents) if contents else []
self.assertEqual(1, len(dpdk_map))
dpdk_test = [{'name': 'eth1', 'pci_address': '0000:03:00.0',
'driver': 'vfio-pci'}]
self.assertListEqual(dpdk_test, dpdk_map)
def test_update_dpdk_map_exist(self):
dpdk_test = [{'name': 'eth1', 'pci_address': '0000:03:00.0',
'driver': 'vfio-pci'}]
utils.write_yaml_config(utils._DPDK_MAPPING_FILE, dpdk_test)
utils._update_dpdk_map('eth1', '0000:03:00.0', 'vfio-pci')
try:
contents = utils.get_file_data(utils._DPDK_MAPPING_FILE)
except IOError:
pass
dpdk_map = yaml.load(contents) if contents else []
self.assertEqual(1, len(dpdk_map))
self.assertListEqual(dpdk_test, dpdk_map)
def test_update_dpdk_map_value_change(self):
dpdk_test = [{'name': 'eth1', 'pci_address': '0000:03:00.0',
'driver': 'vfio-pci'}]
utils.write_yaml_config(utils._DPDK_MAPPING_FILE, dpdk_test)
dpdk_test = [{'name': 'eth1', 'pci_address': '0000:03:00.0',
'driver': 'igb_uio'}]
utils._update_dpdk_map('eth1', '0000:03:00.0', 'igb_uio')
try:
contents = utils.get_file_data(utils._DPDK_MAPPING_FILE)
except IOError:
pass
dpdk_map = yaml.load(contents) if contents else []
self.assertEqual(1, len(dpdk_map))
self.assertListEqual(dpdk_test, dpdk_map)
def test_ordered_active_nics_with_dpdk_mapping(self):
tmpdir = tempfile.mkdtemp()
self.stubs.Set(utils, '_SYS_CLASS_NET', tmpdir)
def test_is_active_nic(interface_name):
return True
self.stubs.Set(utils, '_is_active_nic', test_is_active_nic)
for nic in ['a1', 'em1', 'em2', 'eth2', 'z1',
'enp8s0', 'enp10s0', 'enp1s0f0']:
with open(os.path.join(tmpdir, nic), 'w') as f:
f.write(nic)
utils._update_dpdk_map('eth1', '0000:03:00.0', 'igb_uio')
utils._update_dpdk_map('p3p1', '0000:04:00.0', 'igb_uio')
nics = utils.ordered_active_nics()
self.assertEqual('em1', nics[0])
self.assertEqual('em2', nics[1])
self.assertEqual('eth1', nics[2]) # DPDK bound nic
self.assertEqual('eth2', nics[3])
self.assertEqual('a1', nics[4])
self.assertEqual('enp1s0f0', nics[5])
self.assertEqual('enp8s0', nics[6])
self.assertEqual('enp10s0', nics[7])
self.assertEqual('p3p1', nics[8]) # DPDK bound nic
self.assertEqual('z1', nics[9])
shutil.rmtree(tmpdir)
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