pvc/node-daemon/pvcnoded/SRIOVVFInstance.py

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#!/usr/bin/env python3
# SRIOVVFInstance.py - Class implementing a PVC SR-IOV VF and run by pvcnoded
# Part of the Parallel Virtual Cluster (PVC) system
#
# Copyright (C) 2018-2021 Joshua M. Boniface <joshua@boniface.me>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, version 3.
#
# 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 <https://www.gnu.org/licenses/>.
#
###############################################################################
import daemon_lib.common as common
def boolToOnOff(state):
if state and str(state) == 'True':
return 'on'
else:
return 'off'
class SRIOVVFInstance(object):
# Initialization function
def __init__(self, vf, zkhandler, config, logger, this_node):
self.vf = vf
self.zkhandler = zkhandler
self.config = config
self.logger = logger
self.this_node = this_node
self.myhostname = self.this_node.name
self.pf = self.zkhandler.read(('node.sriov.vf', self.myhostname, 'sriov_vf.pf', self.vf))
self.mtu = self.zkhandler.read(('node.sriov.vf', self.myhostname, 'sriov_vf.mtu', self.vf))
self.vfid = self.vf.replace('{}v'.format(self.pf), '')
# These properties are set via the DataWatch functions, to ensure they are configured on the system
self.mac = None
self.vlan_id = None
self.vlan_qos = None
self.tx_rate_min = None
self.tx_rate_max = None
self.spoof_check = None
self.link_state = None
self.trust = None
self.query_rss = None
# Zookeeper handlers for changed configs
@self.zkhandler.zk_conn.DataWatch(self.zkhandler.schema.path('node.sriov.vf', self.myhostname) + self.zkhandler.schema.path('sriov_vf.mac', self.vf))
def watch_vf_mac(data, stat, event=''):
if event and event.type == 'DELETED':
# The key has been deleted after existing before; terminate this watcher
# because this class instance is about to be reaped in Daemon.py
return False
try:
data = data.decode('ascii')
except AttributeError:
data = '00:00:00:00:00:00'
if data != self.mac:
self.mac = data
@self.zkhandler.zk_conn.DataWatch(self.zkhandler.schema.path('node.sriov.vf', self.myhostname) + self.zkhandler.schema.path('sriov_vf.config.vlan_id', self.vf))
def watch_vf_vlan_id(data, stat, event=''):
if event and event.type == 'DELETED':
# The key has been deleted after existing before; terminate this watcher
# because this class instance is about to be reaped in Daemon.py
return False
try:
data = data.decode('ascii')
except AttributeError:
data = '0'
if data != self.vlan_id:
self.vlan_id = data
common.run_os_command('ip link set {} vf {} vlan {} qos {}'.format(self.pf, self.vfid, self.vlan_id, self.vlan_qos))
@self.zkhandler.zk_conn.DataWatch(self.zkhandler.schema.path('node.sriov.vf', self.myhostname) + self.zkhandler.schema.path('sriov_vf.config.vlan_qos', self.vf))
def watch_vf_vlan_qos(data, stat, event=''):
if event and event.type == 'DELETED':
# The key has been deleted after existing before; terminate this watcher
# because this class instance is about to be reaped in Daemon.py
return False
try:
data = data.decode('ascii')
except AttributeError:
data = '0'
if data != self.vlan_qos:
self.vlan_qos = data
common.run_os_command('ip link set {} vf {} vlan {} qos {}'.format(self.pf, self.vfid, self.vlan_id, self.vlan_qos))
@self.zkhandler.zk_conn.DataWatch(self.zkhandler.schema.path('node.sriov.vf', self.myhostname) + self.zkhandler.schema.path('sriov_vf.config.tx_rate_min', self.vf))
def watch_vf_tx_rate_min(data, stat, event=''):
if event and event.type == 'DELETED':
# The key has been deleted after existing before; terminate this watcher
# because this class instance is about to be reaped in Daemon.py
return False
try:
data = data.decode('ascii')
except AttributeError:
data = '0'
if data != self.tx_rate_min:
self.tx_rate_min = data
common.run_os_command('ip link set {} vf {} min_tx_rate {}'.format(self.pf, self.vfid, self.tx_rate_min))
@self.zkhandler.zk_conn.DataWatch(self.zkhandler.schema.path('node.sriov.vf', self.myhostname) + self.zkhandler.schema.path('sriov_vf.config.tx_rate_max', self.vf))
def watch_vf_tx_rate_max(data, stat, event=''):
if event and event.type == 'DELETED':
# The key has been deleted after existing before; termaxate this watcher
# because this class instance is about to be reaped in Daemon.py
return False
try:
data = data.decode('ascii')
except AttributeError:
data = '0'
if data != self.tx_rate_max:
self.tx_rate_max = data
common.run_os_command('ip link set {} vf {} max_tx_rate {}'.format(self.pf, self.vfid, self.tx_rate_max))
@self.zkhandler.zk_conn.DataWatch(self.zkhandler.schema.path('node.sriov.vf', self.myhostname) + self.zkhandler.schema.path('sriov_vf.config.spoof_check', self.vf))
def watch_vf_spoof_check(data, stat, event=''):
if event and event.type == 'DELETED':
# The key has been deleted after existing before; terminate this watcher
# because this class instance is about to be reaped in Daemon.py
return False
try:
data = data.decode('ascii')
except AttributeError:
data = '0'
if data != self.spoof_check:
self.spoof_check = data
common.run_os_command('ip link set {} vf {} spoofchk {}'.format(self.pf, self.vfid, boolToOnOff(self.spoof_check)))
@self.zkhandler.zk_conn.DataWatch(self.zkhandler.schema.path('node.sriov.vf', self.myhostname) + self.zkhandler.schema.path('sriov_vf.config.link_state', self.vf))
def watch_vf_link_state(data, stat, event=''):
if event and event.type == 'DELETED':
# The key has been deleted after existing before; terminate this watcher
# because this class instance is about to be reaped in Daemon.py
return False
try:
data = data.decode('ascii')
except AttributeError:
data = 'on'
if data != self.link_state:
self.link_state = data
common.run_os_command('ip link set {} vf {} state {}'.format(self.pf, self.vfid, self.link_state))
@self.zkhandler.zk_conn.DataWatch(self.zkhandler.schema.path('node.sriov.vf', self.myhostname) + self.zkhandler.schema.path('sriov_vf.config.trust', self.vf))
def watch_vf_trust(data, stat, event=''):
if event and event.type == 'DELETED':
# The key has been deleted after existing before; terminate this watcher
# because this class instance is about to be reaped in Daemon.py
return False
try:
data = data.decode('ascii')
except AttributeError:
data = 'off'
if data != self.trust:
self.trust = data
common.run_os_command('ip link set {} vf {} trust {}'.format(self.pf, self.vfid, boolToOnOff(self.trust)))
@self.zkhandler.zk_conn.DataWatch(self.zkhandler.schema.path('node.sriov.vf', self.myhostname) + self.zkhandler.schema.path('sriov_vf.config.query_rss', self.vf))
def watch_vf_query_rss(data, stat, event=''):
if event and event.type == 'DELETED':
# The key has been deleted after existing before; terminate this watcher
# because this class instance is about to be reaped in Daemon.py
return False
try:
data = data.decode('ascii')
except AttributeError:
data = 'off'
if data != self.query_rss:
self.query_rss = data
common.run_os_command('ip link set {} vf {} trust {}'.format(self.pf, self.vfid, boolToOnOff(self.query_rss)))