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Avoid overwriting VF data 

Ensures that the configuration of a VF is not overwritten in Zookeeper
on a node restart. The SRIOVVFInstance handlers were modified to start
with None values, so that the DataWatch statements will always trigger
updates to the live system interfaces on daemon startup, thus ensuring
that the config stored in Zookeeper is applied to the system on startup
(mostly relevant after a cold boot or if the API changes them during a
daemon restart).
This commit is contained in:
Joshua Boniface 2021-06-17 01:45:22 -04:00
parent 8f1af2a642
commit 5607a6bb62
2 changed files with 27 additions and 24 deletions
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32
node-daemon/pvcnoded/Daemon.py
View File

@ -1121,21 +1121,23 @@ if enable_networking:
# 'query_rss_en': False
# }
vfphy = '{}v{}'.format(pf, vf['vf'])
zkhandler.write([
(('node.sriov.vf', myhostname, 'sriov_vf', vfphy), ''),
(('node.sriov.vf', myhostname, 'sriov_vf.pf', vfphy), pf),
(('node.sriov.vf', myhostname, 'sriov_vf.mtu', vfphy), mtu),
(('node.sriov.vf', myhostname, 'sriov_vf.mac', vfphy), vf['address']),
(('node.sriov.vf', myhostname, 'sriov_vf.config', vfphy), ''),
(('node.sriov.vf', myhostname, 'sriov_vf.config.vlan_id', vfphy), vf['vlan_list'][0].get('vlan', '')),
(('node.sriov.vf', myhostname, 'sriov_vf.config.vlan_qos', vfphy), vf['vlan_list'][0].get('qos', '')),
(('node.sriov.vf', myhostname, 'sriov_vf.config.tx_rate_min', vfphy), vf['rate']['min_tx']),
(('node.sriov.vf', myhostname, 'sriov_vf.config.tx_rate_max', vfphy), vf['rate']['max_tx']),
(('node.sriov.vf', myhostname, 'sriov_vf.config.spoof_check', vfphy), vf['spoofchk']),
(('node.sriov.vf', myhostname, 'sriov_vf.config.link_state', vfphy), vf['link_state']),
(('node.sriov.vf', myhostname, 'sriov_vf.config.trust', vfphy), vf['trust']),
(('node.sriov.vf', myhostname, 'sriov_vf.config.query_rss', vfphy), vf['query_rss_en']),
])
# Add the VF to Zookeeper if it does not yet exist
if not zkhandler.exists(('node.sriov.vf', myhostname, 'sriov_vf', vfphy)):
zkhandler.write([
(('node.sriov.vf', myhostname, 'sriov_vf', vfphy), ''),
(('node.sriov.vf', myhostname, 'sriov_vf.pf', vfphy), pf),
(('node.sriov.vf', myhostname, 'sriov_vf.mtu', vfphy), mtu),
(('node.sriov.vf', myhostname, 'sriov_vf.mac', vfphy), vf['address']),
(('node.sriov.vf', myhostname, 'sriov_vf.config', vfphy), ''),
(('node.sriov.vf', myhostname, 'sriov_vf.config.vlan_id', vfphy), vf['vlan_list'][0].get('vlan', '')),
(('node.sriov.vf', myhostname, 'sriov_vf.config.vlan_qos', vfphy), vf['vlan_list'][0].get('qos', '')),
(('node.sriov.vf', myhostname, 'sriov_vf.config.tx_rate_min', vfphy), vf['rate']['min_tx']),
(('node.sriov.vf', myhostname, 'sriov_vf.config.tx_rate_max', vfphy), vf['rate']['max_tx']),
(('node.sriov.vf', myhostname, 'sriov_vf.config.spoof_check', vfphy), vf['spoofchk']),
(('node.sriov.vf', myhostname, 'sriov_vf.config.link_state', vfphy), vf['link_state']),
(('node.sriov.vf', myhostname, 'sriov_vf.config.trust', vfphy), vf['trust']),
(('node.sriov.vf', myhostname, 'sriov_vf.config.query_rss', vfphy), vf['query_rss_en']),
])
# Append the device to the list of VFs
sriov_vf_list.append(vfphy)

19
node-daemon/pvcnoded/SRIOVVFInstance.py
View File

@ -43,16 +43,17 @@ class SRIOVVFInstance(object):
self.mtu = self.zkhandler.read(('node.sriov.vf', self.myhostname, 'sriov_vf.mtu', self.vf))
self.vfid = self.vf.replace('{}v'.format(self.pf), '')
self.mac = self.zkhandler.read(('node.sriov.vf', self.myhostname, 'sriov_vf.mac', self.vf))
self.vlan_id = self.zkhandler.read(('node.sriov.vf', self.myhostname, 'sriov_vf.config.vlan_id', self.vf))
self.vlan_qos = self.zkhandler.read(('node.sriov.vf', self.myhostname, 'sriov_vf.config.vlan_qos', self.vf))
self.tx_rate_min = self.zkhandler.read(('node.sriov.vf', self.myhostname, 'sriov_vf.config.tx_rate_min', self.vf))
self.tx_rate_max = self.zkhandler.read(('node.sriov.vf', self.myhostname, 'sriov_vf.config.tx_rate_max', self.vf))
self.spoof_check = self.zkhandler.read(('node.sriov.vf', self.myhostname, 'sriov_vf.config.spoof_check', self.vf))
self.link_state = self.zkhandler.read(('node.sriov.vf', self.myhostname, 'sriov_vf.config.link_state', self.vf))
self.trust = self.zkhandler.read(('node.sriov.vf', self.myhostname, 'sriov_vf.config.trust', self.vf))
self.query_rss = self.zkhandler.read(('node.sriov.vf', self.myhostname, 'sriov_vf.config.query_rss', self.vf))
# 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))