os-net-config/os_net_config/tests/test_sriov_bind_config.py
waleedm 3144a8fc4f Support binding VFs after moving to switchdev
Currently for Mellanox vendor ID we don't bind vfs after moving to switchdev
because it affects VF-lAG feature, but for other features like OVS-DPDK SRIOV,
OVS-DPDK VDPA and OVS-Kernel Forwarder we have to bind them.

To support binding VFs to networking driver, there are two scenarios
that we need to address:
    * Deployment case
      In deployment case, we are binding vfs after moving all the
      sriov_pfs to switchdev and also configuring sriov_bind service
    * Reboot case
      In reboot case, we start sriov_bind service which will run
      after network.service sriov_config.service (The case that we are
      sure that VF-LAG activation done)

Change-Id: I7e79029602f403885b347289d2ae6a3d47453a4e
2020-11-23 07:45:22 +00:00

54 lines
1.8 KiB
Python

# -*- 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
from os_net_config import sriov_bind_config
from os_net_config.tests import base
from os_net_config import utils
class TestSriovBindConfig(base.TestCase):
"""Unit tests for methods defined in sriov_bind_config.py"""
def setUp(self):
super(TestSriovBindConfig, self).setUp()
rand = str(int(random.random() * 100000))
sriov_bind_config._SRIOV_BIND_CONFIG_FILE = '/tmp/' + rand +\
'sriov_bind_config.yaml'
sriov_bind_config._PCI_DRIVER_BIND_FILE_PATH = '/tmp/' + rand +\
'%(driver)s/bind'
def tearDown(self):
super(TestSriovBindConfig, self).tearDown()
if os.path.isfile(sriov_bind_config._SRIOV_BIND_CONFIG_FILE):
os.remove(sriov_bind_config._SRIOV_BIND_CONFIG_FILE)
def test_bind_vfs(self):
"""Test SR-IOV VFs binding"""
vfs_driver = "mlx5_core"
sriov_bind_pcis_map = {vfs_driver: ['0000:03:00.2', '0000:03:00.3']}
os.makedirs(sriov_bind_config._PCI_DRIVER_BIND_FILE_PATH %
{"driver": vfs_driver})
utils.write_yaml_config(sriov_bind_config._SRIOV_BIND_CONFIG_FILE,
sriov_bind_pcis_map)
sriov_bind_config.bind_vfs()