Host network configuration tool
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os-net-config/os_net_config/tests/test_sriov_config.py

572 lines
22 KiB

# -*- coding: utf-8 -*-
# Copyright 2019 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
from os_net_config import common
from os_net_config import sriov_config
from os_net_config.tests import base
from os_net_config import utils
class TestSriovConfig(base.TestCase):
"""Unit tests for methods defined in sriov_config.py"""
def setUp(self):
super(TestSriovConfig, self).setUp()
rand = str(int(random.random() * 100000))
tmpdir = tempfile.mkdtemp()
self.stub_out('os_net_config.common.SYS_CLASS_NET', tmpdir)
common._LOG_FILE = '/tmp/' + rand + 'os_net_config.log'
sriov_config._UDEV_RULE_FILE = '/tmp/' + rand + 'etc_udev_rules.d'\
'80-persistent-os-net-config.rules'
sriov_config._UDEV_LEGACY_RULE_FILE = '/tmp/' + rand + 'etc_udev_'\
'rules.d_70-os-net-config-sriov.rules'
sriov_config._IFUP_LOCAL_FILE = '/tmp/' + rand + 'sbin_ifup-local'
sriov_config._RESET_SRIOV_RULES_FILE = '/tmp/' + rand + 'etc_udev_'\
'rules.d_70-tripleo-reset-sriov.rules'
sriov_config._ALLOCATE_VFS_FILE = '/tmp/' + rand + 'etc_sysconfig_'\
'allocate_vfs'
sriov_config._SRIOV_CONFIG_FILE = '/tmp/' + rand + 'sriov_config'\
'.yaml'
def tearDown(self):
super(TestSriovConfig, self).tearDown()
if os.path.isfile(common._LOG_FILE):
os.remove(common._LOG_FILE)
if os.path.isfile(sriov_config._SRIOV_CONFIG_FILE):
os.remove(sriov_config._SRIOV_CONFIG_FILE)
if os.path.isfile(sriov_config._IFUP_LOCAL_FILE):
os.remove(sriov_config._IFUP_LOCAL_FILE)
shutil.rmtree(common.SYS_CLASS_NET)
if os.path.isfile(sriov_config._RESET_SRIOV_RULES_FILE):
os.remove(sriov_config._RESET_SRIOV_RULES_FILE)
if os.path.isfile(sriov_config._ALLOCATE_VFS_FILE):
os.remove(sriov_config._ALLOCATE_VFS_FILE)
if os.path.isfile(sriov_config._UDEV_LEGACY_RULE_FILE):
os.remove(sriov_config._UDEV_LEGACY_RULE_FILE)
def _write_numvfs(self, ifname, numvfs=0):
os.makedirs(common.get_dev_path(ifname, '_device'))
numvfs_file = common.get_dev_path(ifname, 'sriov_numvfs')
with open(numvfs_file, 'w') as f:
f.write(str(numvfs))
def _save_action(self, action):
try:
self._action_order.append(action)
except AttributeError:
self._action_order = [action]
def setUp_udev_stubs(self):
def udev_monitor_setup_stub():
self._save_action('udev_monitor_setup')
return
self.stub_out('os_net_config.sriov_config.udev_monitor_setup',
udev_monitor_setup_stub)
def udev_monitor_start_stub(observer):
self._save_action('udev_monitor_start')
return
self.stub_out('os_net_config.sriov_config.udev_monitor_start',
udev_monitor_start_stub)
def udev_monitor_stop_stub(observer):
self._save_action('udev_monitor_stop')
return
self.stub_out('os_net_config.sriov_config.udev_monitor_stop',
udev_monitor_stop_stub)
def trigger_udev_rules_stub():
self._save_action('trigger_udev_rules')
return
self.stub_out('os_net_config.sriov_config.trigger_udev_rules',
trigger_udev_rules_stub)
def reload_udev_rules_stub():
self._save_action('reload_udev_rules')
return
self.stub_out('os_net_config.sriov_config.reload_udev_rules',
reload_udev_rules_stub)
def test_add_udev_rules(self):
"""Test Add udev rules
"""
def get_pf_pci_stub(name):
pci_address = {"p2p1": "0000:01:01.0",
"p2p2": "0000:01:02.0",
"p2p3": "0000:01:03.0"}
return pci_address[name]
self.stub_out('os_net_config.sriov_config.get_pf_pci',
get_pf_pci_stub)
self.setUp_udev_stubs()
exp_udev_content = '# This file is autogenerated by os-net-config\n'\
'SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", '\
'KERNELS=="0000:01:01.0", NAME="p2p1"\n'
sriov_config.add_udev_rule_for_sriov_pf("p2p1")
f = open(sriov_config._UDEV_RULE_FILE, 'r')
self.assertEqual(exp_udev_content, f.read())
def test_append_udev_rules(self):
"""Test adding udev rules
"""
def get_pf_pci_stub(name):
pci_address = {"p2p1": "0000:01:01.0",
"p2p2": "0000:01:02.0",
"p2p3": "0000:01:03.0"}
return pci_address[name]
self.stub_out('os_net_config.sriov_config.get_pf_pci',
get_pf_pci_stub)
self.setUp_udev_stubs()
exp_udev_content = '# This file is autogenerated by os-net-config\n'\
'SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", '\
'KERNELS=="0000:01:01.0", NAME="p2p1"\n' \
'SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", '\
'KERNELS=="0000:01:02.0", NAME="p2p2"\n'
udev_content = '# This file is autogenerated by os-net-config\n'\
'SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", '\
'KERNELS=="0000:01:01.0", NAME="p2p1"\n'
udev_file = open(sriov_config._UDEV_RULE_FILE, "w")
udev_file.write(udev_content)
udev_file.close()
sriov_config.add_udev_rule_for_sriov_pf("p2p2")
f = open(sriov_config._UDEV_RULE_FILE, 'r')
self.assertEqual(exp_udev_content, f.read())
def test_add_legacy_udev_rules(self):
"""Test Add udev rules for legacy sriov
"""
self.setUp_udev_stubs()
exp_udev_content = '# This file is autogenerated by os-net-config\n'\
'KERNEL=="p2p1", RUN+="/bin/os-net-config-sriov -n %k:8"\n'
sriov_config.add_udev_rule_for_legacy_sriov_pf("p2p1", 8)
f = open(sriov_config._UDEV_LEGACY_RULE_FILE, 'r')
self.assertEqual(exp_udev_content, f.read())
def test_modify_legacy_udev_rules(self):
"""Test modifying udev rules for legacy sriov
"""
self.setUp_udev_stubs()
udev_content = '# This file is autogenerated by os-net-config\n'\
'KERNEL=="p2p1", RUN+="/bin/os-net-config-sriov -n %k:10"\n'\
'KERNEL=="p2p2", RUN+="/bin/os-net-config-sriov -n %k:12"\n'
exp_udev_content = '# This file is autogenerated by os-net-config\n'\
'KERNEL=="p2p1", RUN+="/bin/os-net-config-sriov -n %k:8"\n'\
'KERNEL=="p2p2", RUN+="/bin/os-net-config-sriov -n %k:12"\n'
udev_file = open(sriov_config._UDEV_LEGACY_RULE_FILE, "w")
udev_file.write(udev_content)
udev_file.close()
sriov_config.add_udev_rule_for_legacy_sriov_pf("p2p1", 8)
f = open(udev_file.name, 'r')
self.assertEqual(exp_udev_content, f.read())
def test_same_legacy_udev_rules(self):
"""Test without changing udev rules for legacy sriov
"""
self.setUp_udev_stubs()
udev_content = '# This file is autogenerated by os-net-config\n'\
'KERNEL=="p2p1", RUN+="/bin/os-net-config-sriov -n %k:8"\n'\
'KERNEL=="p2p2", RUN+="/bin/os-net-config-sriov -n %k:10"\n'
exp_udev_content = '# This file is autogenerated by os-net-config\n'\
'KERNEL=="p2p1", RUN+="/bin/os-net-config-sriov -n %k:8"\n'\
'KERNEL=="p2p2", RUN+="/bin/os-net-config-sriov -n %k:10"\n'
udev_file = open(sriov_config._UDEV_LEGACY_RULE_FILE, "w")
udev_file.write(udev_content)
udev_file.close()
sriov_config.add_udev_rule_for_legacy_sriov_pf("p2p2", 10)
f = open(udev_file.name, 'r')
self.assertEqual(exp_udev_content, f.read())
def test_append_legacy_udev_rules(self):
"""Test appending udev rules for legacy sriov
"""
self.setUp_udev_stubs()
udev_content = '# This file is autogenerated by os-net-config\n'\
'KERNEL=="p2p1", RUN+="/bin/os-net-config-sriov -n %k:8"\n'\
'KERNEL=="p2p2", RUN+="/bin/os-net-config-sriov -n %k:10"\n'
exp_udev_content = '# This file is autogenerated by os-net-config\n'\
'KERNEL=="p2p1", RUN+="/bin/os-net-config-sriov -n %k:8"\n'\
'KERNEL=="p2p2", RUN+="/bin/os-net-config-sriov -n %k:10"\n' \
'KERNEL=="p2p3", RUN+="/bin/os-net-config-sriov -n %k:12"\n'
udev_file = open(sriov_config._UDEV_LEGACY_RULE_FILE, "w")
udev_file.write(udev_content)
udev_file.close()
sriov_config.add_udev_rule_for_legacy_sriov_pf("p2p3", 12)
f = open(udev_file.name, 'r')
self.assertEqual(exp_udev_content, f.read())
def setUp_pf_stubs(self, vendor_id="0x8086"):
run_cmd = []
self.setUp_udev_stubs()
def run_ip_config_cmd_stub(*args, **kwargs):
run_cmd.append(' '.join(args))
self.stub_out('os_net_config.sriov_config.run_ip_config_cmd',
run_ip_config_cmd_stub)
def cleanup_puppet_config_stub():
return
self.stub_out('os_net_config.sriov_config.cleanup_puppet_config',
cleanup_puppet_config_stub)
def _wait_for_vf_creation_stub(pf_name, numvfs):
self._save_action('_wait_for_vf_creation_stub')
return
self.stub_out('os_net_config.sriov_config._wait_for_vf_creation',
_wait_for_vf_creation_stub)
def get_vendor_id_stub(ifname):
return vendor_id
self.stub_out('os_net_config.common.get_vendor_id',
get_vendor_id_stub)
def configure_switchdev_stub(pf_name):
self._save_action('configure_switchdev')
return
self.stub_out('os_net_config.sriov_config.configure_switchdev',
configure_switchdev_stub)
self.set_numvfs = sriov_config.set_numvfs
self.get_numvfs = sriov_config.get_numvfs
def get_numvfs_stub(*args):
self._save_action('get_numvfs')
return self.get_numvfs(*args)
self.stub_out('os_net_config.sriov_config.get_numvfs',
get_numvfs_stub)
def set_numvfs_stub(*args):
self._save_action('set_numvfs')
return self.set_numvfs(*args)
self.stub_out('os_net_config.sriov_config.set_numvfs',
set_numvfs_stub)
def test_configure_sriov_pf(self):
"""Test the numvfs setting for SR-IOV PF
Test the udev rules created for legacy mode of SR-IOV PF
"""
self.setUp_pf_stubs()
exp_udev_content = '# This file is autogenerated by os-net-config\n'\
'KERNEL=="p2p1", RUN+="/bin/os-net-config-sriov -n %k:10"\n'\
'KERNEL=="p2p2", RUN+="/bin/os-net-config-sriov -n %k:12"\n'
exp_actions = [
'udev_monitor_setup',
'udev_monitor_start',
'reload_udev_rules',
'set_numvfs',
'get_numvfs',
'_wait_for_vf_creation_stub',
'get_numvfs',
'reload_udev_rules',
'set_numvfs',
'get_numvfs',
'_wait_for_vf_creation_stub',
'get_numvfs',
'udev_monitor_stop',
]
pf_config = [{"device_type": "pf", "name": "p2p1", "numvfs": 10,
"promisc": "on", "link_mode": "legacy"},
{"device_type": "pf", "name": "p2p2", "numvfs": 12,
"promisc": "off", "link_mode": "legacy"}]
for ifname in ['p2p1', 'p2p2']:
self._write_numvfs(ifname)
self._action_order = []
utils.write_yaml_config(sriov_config._SRIOV_CONFIG_FILE, pf_config)
sriov_config.configure_sriov_pf()
self.assertEqual(exp_actions, self._action_order)
f = open(sriov_config._UDEV_LEGACY_RULE_FILE, 'r')
self.assertEqual(exp_udev_content, f.read())
self.assertEqual(10, sriov_config.get_numvfs('p2p1'))
self.assertEqual(12, sriov_config.get_numvfs('p2p2'))
def test_configure_sriov_pf_nicpart(self):
"""Test the udev rules created for legacy mode of SR-IOV PF
In this case, the VF(s) are already bound/attached
"""
self.setUp_pf_stubs()
exp_udev_content = '# This file is autogenerated by os-net-config\n'\
'KERNEL=="p2p2", RUN+="/bin/os-net-config-sriov -n %k:12"\n'
exp_actions = [
'udev_monitor_setup',
'udev_monitor_start',
'set_numvfs',
'get_numvfs',
'_wait_for_vf_creation_stub',
'get_numvfs',
'reload_udev_rules',
'set_numvfs',
'get_numvfs',
'_wait_for_vf_creation_stub',
'get_numvfs',
'udev_monitor_stop',
]
pf_config = [{"device_type": "pf", "name": "p2p1", "numvfs": 10,
"promisc": "on", "link_mode": "legacy"},
{"device_type": "pf", "name": "p2p2", "numvfs": 12,
"promisc": "off", "link_mode": "legacy"},
{"device": {"name": "p2p1", "vfid": 0},
"device_type": "vf", "name": "p2p1v0", "max_tx_rate": 0,
"min_tx_rate": 0, "pci_address": "0000:18:0a.0",
"trust": "on", "spoofcheck": "off"}]
for ifname in ['p2p1', 'p2p2']:
self._write_numvfs(ifname)
self._action_order = []
utils.write_yaml_config(sriov_config._SRIOV_CONFIG_FILE, pf_config)
sriov_config.configure_sriov_pf()
self.assertEqual(exp_actions, self._action_order)
f = open(sriov_config._UDEV_LEGACY_RULE_FILE, 'r')
self.assertEqual(exp_udev_content, f.read())
self.assertEqual(12, sriov_config.get_numvfs('p2p2'))
def test_configure_sriov_pf_non_nicpart(self):
"""Test the udev rules created for legacy mode of SR-IOV PF
In this case, the nic partitioned VF(s) are not attached
"""
self.setUp_pf_stubs()
exp_udev_content = '# This file is autogenerated by os-net-config\n'\
'KERNEL=="p2p1", RUN+="/bin/os-net-config-sriov -n %k:10"\n'\
'KERNEL=="p2p2", RUN+="/bin/os-net-config-sriov -n %k:12"\n'
exp_actions = [
'udev_monitor_setup',
'udev_monitor_start',
'reload_udev_rules',
'set_numvfs',
'get_numvfs',
'_wait_for_vf_creation_stub',
'get_numvfs',
'reload_udev_rules',
'set_numvfs',
'get_numvfs',
'_wait_for_vf_creation_stub',
'get_numvfs',
'udev_monitor_stop',
]
pf_config = [{"device_type": "pf", "name": "p2p1", "numvfs": 10,
"promisc": "on", "link_mode": "legacy"},
{"device_type": "pf", "name": "p2p2", "numvfs": 12,
"promisc": "off", "link_mode": "legacy"},
{"device": {"name": "eno3", "vfid": 1},
"device_type": "vf", "name": "eno3v0", "max_tx_rate": 0,
"min_tx_rate": 0, "pci_address": "0000:18:0e.1",
"trust": "on", "spoofcheck": "off"}]
for ifname in ['p2p1', 'p2p2']:
self._write_numvfs(ifname)
self._action_order = []
utils.write_yaml_config(sriov_config._SRIOV_CONFIG_FILE, pf_config)
sriov_config.configure_sriov_pf()
self.assertEqual(exp_actions, self._action_order)
f = open(sriov_config._UDEV_LEGACY_RULE_FILE, 'r')
self.assertEqual(exp_udev_content, f.read())
self.assertEqual(10, sriov_config.get_numvfs('p2p1'))
self.assertEqual(12, sriov_config.get_numvfs('p2p2'))
def test_configure_vdpa_pf(self):
"""Test the vdpa PF
"""
self.setUp_pf_stubs(common.MLNX_VENDOR_ID)
exp_actions = [
'udev_monitor_setup',
'udev_monitor_start',
'configure_switchdev',
'set_numvfs',
'get_numvfs',
'_wait_for_vf_creation_stub',
'get_numvfs',
'configure_switchdev',
'set_numvfs',
'get_numvfs',
'_wait_for_vf_creation_stub',
'get_numvfs',
'udev_monitor_stop',
]
pf_config = [{"device_type": "pf", "name": "p2p1", "numvfs": 10,
"vdpa": True, "link_mode": "switchdev"},
{"device_type": "pf", "name": "p2p2", "numvfs": 12,
"vdpa": True, "link_mode": "switchdev"}]
for ifname in ['p2p1', 'p2p2']:
self._write_numvfs(ifname)
self._action_order = []
utils.write_yaml_config(sriov_config._SRIOV_CONFIG_FILE, pf_config)
sriov_config.configure_sriov_pf()
self.assertEqual(exp_actions, self._action_order)
self.assertEqual(10, sriov_config.get_numvfs('p2p1'))
self.assertEqual(12, sriov_config.get_numvfs('p2p2'))
def test_cleanup_puppet_config_deprecation(self):
"""Test the cleanup of puppet-tripleo generated config file.
Usecase: The ifup-local has the default content generated by
puppet-tripleo
"""
content = '#!/bin/bash\n'\
'/etc/sysconfig/allocate_vfs $1'
f = open(sriov_config._RESET_SRIOV_RULES_FILE, "w+")
f.close()
f = open(sriov_config._ALLOCATE_VFS_FILE, "w+")
f.close()
f = open(sriov_config._IFUP_LOCAL_FILE, "w+")
f.write(content)
f.close()
sriov_config.cleanup_puppet_config()
self.assertEqual(False,
os.path.exists(sriov_config._RESET_SRIOV_RULES_FILE))
self.assertEqual(False,
os.path.exists(sriov_config._ALLOCATE_VFS_FILE))
self.assertEqual(False,
os.path.exists(sriov_config._IFUP_LOCAL_FILE))
def test_cleanup_puppet_config_new(self):
"""Test the cleanup of puppet-tripleo generated config file.
Usecase: When os-net-config is run on fresh deployments, all these
files will not exist.
"""
sriov_config.cleanup_puppet_config()
self.assertEqual(False,
os.path.exists(sriov_config._RESET_SRIOV_RULES_FILE))
self.assertEqual(False,
os.path.exists(sriov_config._ALLOCATE_VFS_FILE))
self.assertEqual(False,
os.path.exists(sriov_config._IFUP_LOCAL_FILE))
def test_cleanup_puppet_config_modified(self):
"""Test the cleanup of puppet-tripleo generated config file
Usecase: When os-net-config is run first time after the deprecation
of NeutronSriovNumVFs and ifup-local has contents other than invoking
allocate_vfs.
"""
content = '#!/bin/bash\n'\
'/etc/sysconfig/allocate_vfs $1\n'\
'/usr/sbin/ifup eth0'
mod_content = '#!/bin/bash\n'\
'/usr/sbin/ifup eth0'
f = open(sriov_config._IFUP_LOCAL_FILE, "w+")
f.write(content)
f.close()
sriov_config.cleanup_puppet_config()
self.assertEqual(False,
os.path.exists(sriov_config._RESET_SRIOV_RULES_FILE))
self.assertEqual(False,
os.path.exists(sriov_config._ALLOCATE_VFS_FILE))
self.assertEqual(True,
os.path.exists(sriov_config._IFUP_LOCAL_FILE))
f = open(sriov_config._IFUP_LOCAL_FILE, "r")
self.assertEqual(mod_content, f.read())
def test_numvfs_config(self):
"""Test the numvfs config with valid arguments"""
self._write_numvfs('p2p1')
self.assertEqual(None, sriov_config.main(['ARG0', '-n', 'p2p1:15']))
self.assertEqual(15, sriov_config.get_numvfs('p2p1'))
def test_numvfs_invalid_params(self):
"""Test the numvfs config with invalid arguments"""
self._write_numvfs('p2p1')
self.assertEqual(1, sriov_config.main(['ARG0', '-n', 'p2p1:15a']))
self.assertEqual(0, sriov_config.get_numvfs('p2p1'))
def test_numvfs_preconfigured(self):
"""Test the numvfs config while its already configured"""
self._write_numvfs('p2p1', 10)
self.assertEqual(None, sriov_config.main(['ARG0', '-n', 'p2p1:15']))
self.assertEqual(10, sriov_config.get_numvfs('p2p1'))
def test_configure_sriov_vf(self):
"""Test configuration of SR-IOV VF settings"""
vf_config = [{"device_type": "vf", "device": {"name": "p2p1",
"vfid": 1}, "promisc": "on", "vlan_id": 101,
"qos": 5, "macaddr": "AA:BB:CC:DD:EE:FF",
"spoofcheck": "on", "state": "auto", "trust": "on",
"min_tx_rate": 0, "max_tx_rate": 100,
"name": "p2p1_1"}]
exp_cmds = ["ip link set dev p2p1 vf 1 mac AA:BB:CC:DD:EE:FF",
"ip link set dev p2p1 vf 1 vlan 101 qos 5",
"ip link set dev p2p1 vf 1 min_tx_rate 0",
"ip link set dev p2p1 vf 1 max_tx_rate 100",
"ip link set dev p2p1_1 promisc on",
"ip link set dev p2p1 vf 1 spoofchk on",
"ip link set dev p2p1 vf 1 state auto",
"ip link set dev p2p1 vf 1 trust on"]
run_cmd = []
def run_ip_config_cmd_stub(*args, **kwargs):
run_cmd.append(' '.join(args))
self.stub_out('os_net_config.sriov_config.run_ip_config_cmd',
run_ip_config_cmd_stub)
utils.write_yaml_config(sriov_config._SRIOV_CONFIG_FILE, vf_config)
sriov_config.configure_sriov_vf()
for cmd in exp_cmds:
self.assertIn(cmd, run_cmd)