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intel_qat.py
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intel_qat.py
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#!/usr/bin/env python3
#
# Copyright (C) 2019 VyOS maintainers and contributors
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 or later as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
#
import sys
import os
import re
from vyos.config import Config
from vyos import ConfigError
from vyos.util import popen, run
# Define for recovering
gl_ipsec_conf = None
def get_config():
c = Config()
config_data = {
'qat_conf' : None,
'ipsec_conf' : None,
'openvpn_conf' : None,
}
if c.exists('system acceleration qat'):
config_data['qat_conf'] = True
if c.exists('vpn ipsec '):
gl_ipsec_conf = True
config_data['ipsec_conf'] = True
if c.exists('interfaces openvpn'):
config_data['openvpn_conf'] = True
return config_data
# Control configured VPN service which can use QAT
def vpn_control(action):
# XXX: Should these commands report failure
if action == 'restore' and gl_ipsec_conf:
return run('sudo ipsec start')
return run(f'sudo ipsec {action}')
def verify(c):
# Check if QAT service installed
if not os.path.exists('/etc/init.d/vyos-qat-utilities'):
raise ConfigError("Warning: QAT init file not found")
if c['qat_conf'] == None:
return
# Check if QAT device exist
output, err = popen('sudo lspci -nn', decode='utf-8')
if not err:
data = re.findall('(8086:19e2)|(8086:37c8)|(8086:0435)|(8086:6f54)', output)
#If QAT devices found
if not data:
print("\t No QAT acceleration device found")
sys.exit(1)
def apply(c):
if c['ipsec_conf']:
# Shutdown VPN service which can use QAT
vpn_control('stop')
# Disable QAT service
if c['qat_conf'] == None:
run('sudo /etc/init.d/vyos-qat-utilities stop')
if c['ipsec_conf']:
vpn_control('start')
return
# Run qat init.d script
run('sudo /etc/init.d/vyos-qat-utilities start')
if c['ipsec_conf']:
# Recovery VPN service
vpn_control('start')
if __name__ == '__main__':
try:
c = get_config()
verify(c)
apply(c)
except ConfigError as e:
print(e)
vpn_control('restore')
sys.exit(1)

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intel_qat.py (2 KB)

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