def iface(device, vfid=None):
""" Iface factory """
interface = IfaceHybrid()
interface.device = device
interface._is_dpdk_type = dpdk.is_dpdk(device)
interface.vfid = vfid
return interface
def prepare_setup(self, nets):
"""Prepare networks for creation"""
sb_max_mtu_map = {}
for net, attrs in six.iteritems(nets):
nic = attrs.get('nic')
bond = attrs.get('bonding')
sb = nic or bond
if not dpdk.is_dpdk(sb):
self._acquired_ifaces.add(sb)
sb_exists = sb in self._ovs_info.bridges_by_sb
bridge = self._get_ovs_bridge(sb, sb_exists)
self._create_nb(bridge, net)
vlan = attrs.get('vlan')
if vlan is not None:
self._set_vlan(net, vlan)
self._prepare_network_sb_mtu(
sb, sb_exists, attrs['mtu'], sb_max_mtu_map)
# FIXME: What about an existing bond?
if nic is not None and vlan is None:
self._copy_nic_hwaddr_to_nb(net, nic)
self._ovs_info.northbounds_by_sb.setdefault(sb, set())
self._ovs_info.northbounds_by_sb[sb].add(net)
self._set_networks_mtu(nets, sb_max_mtu_map)
def validate_network_setup(networks, bondings):
for network, networkAttrs in six.iteritems(networks):
if networkAttrs.get('remove', False):
_validate_network_remove(networkAttrs)
elif 'vlan' in networkAttrs:
Vlan.validateTag(networkAttrs['vlan'])
_validate_nic_not_dpdk(networkAttrs.get('nic', None))
currentNicsSet = set(netinfo_nics.nics())
for bonding, bondingAttrs in six.iteritems(bondings):
if 'options' in bondingAttrs:
Bond.validateOptions(bondingAttrs['options'])
if bondingAttrs.get('remove', False):
continue
nics = bondingAttrs.get('nics', None)
if not nics:
raise ConfigNetworkError(ne.ERR_BAD_PARAMS,
'Must specify nics for bonding')
if not set(nics).issubset(currentNicsSet):
raise ConfigNetworkError(ne.ERR_BAD_NIC,
'Unknown nics in: %r' % list(nics))
for nic in nics:
if dpdk.is_dpdk(nic):
raise ConfigNetworkError(
ne.ERR_BAD_NIC, '%s is a dpdk device and not supported as '
'a slave of bond' % nic)
def _set_network_mtu(self):
for sb, nbs in six.viewitems(self._ovs_info.northbounds_by_sb):
if dpdk.is_dpdk(sb):
continue
max_nb_mtu = max(_get_mtu(nb) for nb in nbs)
sb_mtu = _get_mtu(sb)
if max_nb_mtu and sb_mtu != max_nb_mtu:
self._set_mtu(sb, max_nb_mtu)
def _validate_bond_addition(nics, current_nics):
for nic in nics:
_validate_nic_exists(nic, current_nics)
if dpdk.is_dpdk(nic):
raise ne.ConfigNetworkError(
ne.ERR_BAD_NIC,
'%s is a dpdk device and not supported as a slave of bond'
% nic)
def _get_ovs_bridge(self, sb):
if sb in self._ovs_info.bridges_by_sb:
bridge = self._ovs_info.bridges_by_sb[sb]
else:
dpdk_enabled = dpdk.is_dpdk(sb)
bridge = self._create_bridge(dpdk_enabled)
self._ovs_info.bridges_by_sb[sb] = bridge
self._create_sb_nic(bridge, sb, dpdk_enabled)
return bridge
def _validate_bond_addition(nics, kernel_nics):
for nic in nics:
if nic not in kernel_nics:
raise ne.ConfigNetworkError(
ne.ERR_BAD_NIC, 'Nic %s does not exist' % nic)
if dpdk.is_dpdk(nic):
raise ne.ConfigNetworkError(
ne.ERR_BAD_NIC,
'%s is a dpdk device and not supported as a slave of bond'
% nic)
def speed(nic_name):
"""Return the nic speed if it is a legal value, 0 otherwise."""
interface = iface(nic_name)
if interface.is_oper_up():
if dpdk.is_dpdk(nic_name):
return dpdk.speed(nic_name)
try:
return read_speed_using_sysfs(nic_name)
except Exception:
logging.debug('cannot read %s speed', nic_name)
return 0
def setup_ovs_ip_config(nets2add, nets2remove):
# TODO: This should be moved to network/api.py when we solve rollback
# transactions.
for net in nets2remove:
_drop_dhcp_config(net)
for net, attrs in six.iteritems(nets2add):
sb = attrs.get('bonding') or attrs.get('nic')
if not dpdk.is_dpdk(sb):
address.disable_ipv6(sb)
_set_static_ip_config(net, attrs)
_set_dhcp_config(net, attrs)
def setup_ovs_ip_config(nets2add, nets2remove):
# TODO: This should be moved to network/api.py when we solve rollback
# transactions.
for net in nets2remove:
_drop_dhcp_config(net)
for net, attrs in six.iteritems(nets2add):
sb = attrs.get('bonding') or attrs.get('nic')
if not dpdk.is_dpdk(sb):
address.disable_ipv6(sb)
_set_static_ip_config(net, attrs)
_set_dhcp_config(net, attrs)
def up(dev, admin_blocking=True, oper_blocking=False):
"""
Set link state to UP, optionally blocking on the action.
:param dev: iface name.
:param admin_blocking: Block until the administrative state changes to UP.
:param oper_blocking: Block until the link is operational.
admin state is at kernel level, while link state is at driver level.
"""
if dpdk.is_dpdk(dev):
dpdk.up(dev)
return
if admin_blocking:
_up_blocking(dev, oper_blocking)
else:
ipwrapper.linkSet(dev, [STATE_UP])
def speed(nic_name):
"""Returns the nic speed if it is a legal value, nicName refers to a
nic and nic is UP, 0 otherwise."""
try:
if dpdk.is_dpdk(nic_name) and operstate(nic_name) == OPERSTATE_UP:
return dpdk.speed(nic_name)
if operstate(nic_name) == OPERSTATE_UP:
with io.open('/sys/class/net/%s/speed' % nic_name) as speedFile:
s = int(speedFile.read())
# the device may have been disabled/downed after checking
# so we validate the return value as sysfs may return
# special values to indicate the device is down/disabled
if s not in (2**16 - 1, 2**32 - 1) and s > 0:
return s
except IOError as ose:
if ose.errno == errno.EINVAL:
return _ibHackedSpeed(nic_name)
else:
logging.exception('cannot read %s nic speed', nic_name)
except Exception:
logging.exception('cannot read %s speed', nic_name)
return 0
def speed(nic_name):
"""Returns the nic speed if it is a legal value, nicName refers to a
nic and nic is UP, 0 otherwise."""
try:
if dpdk.is_dpdk(nic_name) and operstate(nic_name) == OPERSTATE_UP:
return dpdk.speed(nic_name)
if operstate(nic_name) == OPERSTATE_UP:
with io.open('/sys/class/net/%s/speed' % nic_name) as speedFile:
s = int(speedFile.read())
# the device may have been disabled/downed after checking
# so we validate the return value as sysfs may return
# special values to indicate the device is down/disabled
if s not in (2 ** 16 - 1, 2 ** 32 - 1) and s > 0:
return s
except IOError as ose:
if ose.errno == errno.EINVAL:
return _ibHackedSpeed(nic_name)
else:
logging.exception('cannot read %s nic speed', nic_name)
except Exception:
logging.exception('cannot read %s speed', nic_name)
return 0
def add(self, nets):
with self._transaction:
for net, attrs in six.iteritems(nets):
nic = attrs.get('nic')
bond = attrs.get('bonding')
sb = nic or bond
if not dpdk.is_dpdk(sb):
self._acquired_ifaces.add(sb)
bridge = self._get_ovs_bridge(sb)
self._create_nb(bridge, net)
vlan = attrs.get('vlan')
if vlan is not None:
self._set_vlan(net, vlan)
# FIXME: What about an existing bond?
if nic is not None and vlan is None:
self._copy_nic_hwaddr_to_nb(net, nic)
self._ovs_info.northbounds_by_sb.setdefault(sb, set())
self._ovs_info.northbounds_by_sb[sb].add(net)
yield
def operstate(nic_name):
if dpdk.is_dpdk(nic_name):
return dpdk.operstate(nic_name)
with io.open('/sys/class/net/%s/operstate' % nic_name) as operstateFile:
return operstateFile.read().strip()
def exists(self):
if dpdk.is_dpdk(self._dev):
return self._dev in dpdk.get_dpdk_devices()
return os.path.exists(os.path.join(NET_PATH, self._dev))
def getLink(dev):
"""Returns the Link object for the specified dev."""
if dpdk.is_dpdk(dev):
return dpdk.link_info(dev)
return Link.fromDict(link.get_link(dev))
def exists(self):
if dpdk.is_dpdk(self._dev):
return self._dev in dpdk.get_dpdk_devices()
return os.path.exists(os.path.join(NET_PATH, self._dev))
def _validate_nic_not_dpdk(nic):
if nic and dpdk.is_dpdk(nic):
raise ConfigNetworkError(
ne.ERR_BAD_NIC,
'%s is a dpdk device and supported only with OVS' % nic,
)
def getLink(dev):
"""Returns the Link object for the specified dev."""
if dpdk.is_dpdk(dev):
return dpdk.link_info(dev)
return Link.fromDict(link.get_link(dev))
def test_is_dpdk_true(self):
self.assertTrue(dpdk.is_dpdk(dev_name='dpdk0'))
def test_is_dpdk_true(self):
assert dpdk.is_dpdk(dev_name='dpdk0')
def mac_address(dev):
if dpdk.is_dpdk(dev):
return dpdk.link_info(dev)['address']
return get_link(dev)['address']
def is_oper_up(dev):
if dpdk.is_dpdk(dev):
return dpdk.is_oper_up(dev)
return is_link_up(get_link(dev)['flags'], check_oper_status=True)
def down(dev):
if dpdk.is_dpdk(dev):
dpdk.down(dev)
return
ipwrapper.linkSet(dev, ['down'])
def _validate_nic_not_dpdk(nic):
if nic and dpdk.is_dpdk(nic):
raise ConfigNetworkError(
ne.ERR_BAD_NIC,
'%s is a dpdk device and supported only with OVS' % nic)
def test_is_dpdk_false(self):
self.assertFalse(dpdk.is_dpdk(dev_name='not_dpdk_dev'))
def oper_up(self):
if dpdk.is_dpdk(self.name):
return dpdk.is_oper_up(self.name)
return bool(
link.get_link(self.name)['flags'] & libnl.IfaceStatus.IFF_RUNNING)
def operstate(nic_name):
if dpdk.is_dpdk(nic_name):
return dpdk.operstate(nic_name)
with io.open('/sys/class/net/%s/operstate' % nic_name) as operstateFile:
return operstateFile.read().strip()
def test_is_dpdk_false(self):
assert not dpdk.is_dpdk(dev_name='not_dpdk_dev')
def _get_mac(iface):
if dpdk.is_dpdk(iface):
return dpdk.link_info(iface)['address']
return link.get_link(iface)['address']
def oper_up(self):
if dpdk.is_dpdk(self.name):
return dpdk.is_oper_up(self.name)
return bool(
link.get_link(self.name)['flags'] & libnl.IfaceStatus.IFF_RUNNING)
def test_is_dpdk_true(self):
self.assertTrue(dpdk.is_dpdk(dev_name='dpdk0'))
def _get_mac(iface):
if dpdk.is_dpdk(iface):
return dpdk.link_info(iface)['address']
return link.get_link(iface)['address']
def test_is_dpdk_false(self):
self.assertFalse(dpdk.is_dpdk(dev_name='not_dpdk_dev'))
