def wwpns(self):
"""Builds the WWPNs of the adapters that will connect the ports."""
# Refresh the instance. It could have been updated by a concurrent
# call from another thread to get the wwpns.
self.instance.refresh()
vios_wraps = self.stg_ftsk.feed
resp_wwpns = []
# If this is the first time to query the WWPNs for the instance, we
# need to generate a set of valid WWPNs. Loop through the configured
# FC fabrics and determine if these are new, part of a migration, or
# were already configured.
for fabric in self._fabric_names():
fc_state = self._get_fabric_state(fabric)
LOG.info("NPIV wwpns fabric state=%(st)s.", {'st': fc_state},
instance=self.instance)
if self._is_initial_wwpn(fc_state, fabric):
# Get a set of WWPNs that are globally unique from the system.
v_wwpns = pvm_vfcm.build_wwpn_pair(
self.adapter,
self.host_uuid,
pair_count=self._ports_per_fabric())
# Derive the virtual to physical port mapping
port_maps = pvm_vfcm.derive_npiv_map(
vios_wraps, self._fabric_ports(fabric), v_wwpns)
# the fabric is mapped to the physical port) and the fabric
# state.
self._set_fabric_meta(fabric, port_maps)
self._set_fabric_state(fabric, FS_UNMAPPED)
self.instance.save()
elif self._is_migration_wwpn(fc_state):
# The migration process requires the 'second' wwpn from the
# fabric to be used.
port_maps = self._configure_wwpns_for_migration(fabric)
else:
# This specific fabric had been previously set. Just pull
# from the meta (as it is likely already mapped to the
# instance)
port_maps = self._get_fabric_meta(fabric)
# Every loop through, we reverse the vios wrappers. This is
# done so that if Fabric A only has 1 port, it goes on the
# first VIOS. Then Fabric B would put its port on a different
# VIOS. This servers as a form of multi pathing (so that your
# paths are not restricted to a single VIOS).
vios_wraps.reverse()
# Port map is set by either conditional, but may be set to None.
# If not None, then add the WWPNs to the response.
if port_maps is not None:
for mapping in port_maps:
# Only add the first WWPN. That is the one that will be
# logged into the fabric.
resp_wwpns.append(mapping[1].split()[0])
# The return object needs to be a list for the volume connector.
return resp_wwpns
def wwpns(self):
"""Builds the WWPNs of the adapters that will connect the ports."""
# Refresh the instance. It could have been updated by a concurrent
# call from another thread to get the wwpns.
self.instance.refresh()
vios_wraps = self.stg_ftsk.feed
resp_wwpns = []
# If this is the first time to query the WWPNs for the instance, we
# need to generate a set of valid WWPNs. Loop through the configured
# FC fabrics and determine if these are new, part of a migration, or
# were already configured.
for fabric in self._fabric_names():
fc_state = self._get_fabric_state(fabric)
LOG.info(_LI("NPIV wwpns fabric state=%(st)s for "
"instance %(inst)s") %
{'st': fc_state, 'inst': self.instance.name})
if self._is_initial_wwpn(fc_state, fabric):
# Get a set of WWPNs that are globally unique from the system.
v_wwpns = pvm_vfcm.build_wwpn_pair(
self.adapter, self.host_uuid,
pair_count=self._ports_per_fabric())
# Derive the virtual to physical port mapping
port_maps = pvm_vfcm.derive_npiv_map(
vios_wraps, self._fabric_ports(fabric), v_wwpns)
# the fabric is mapped to the physical port) and the fabric
# state.
self._set_fabric_meta(fabric, port_maps)
self._set_fabric_state(fabric, FS_UNMAPPED)
self.instance.save()
elif self._is_migration_wwpn(fc_state):
# The migration process requires the 'second' wwpn from the
# fabric to be used.
port_maps = self._configure_wwpns_for_migration(fabric)
else:
# This specific fabric had been previously set. Just pull
# from the meta (as it is likely already mapped to the
# instance)
port_maps = self._get_fabric_meta(fabric)
# Every loop through, we reverse the vios wrappers. This is
# done so that if Fabric A only has 1 port, it goes on the
# first VIOS. Then Fabric B would put its port on a different
# VIOS. This servers as a form of multi pathing (so that your
# paths are not restricted to a single VIOS).
vios_wraps.reverse()
# Port map is set by either conditional, but may be set to None.
# If not None, then add the WWPNs to the response.
if port_maps is not None:
for mapping in port_maps:
# Only add the first WWPN. That is the one that will be
# logged into the fabric.
resp_wwpns.append(mapping[1].split()[0])
# The return object needs to be a list for the volume connector.
return resp_wwpns
def test_build_wwpn_pair(self, mock_job):
mock_adpt = mock.MagicMock()
mock_adpt.read.return_value = mock.Mock()
# Mock out the job response
job_w = mock.MagicMock()
mock_job.wrap.return_value = job_w
job_w.get_job_results_as_dict.return_value = {'wwpnList':
'a,b,c,d,e,f,g,h'}
# Invoke and validate
resp = vfc_mapper.build_wwpn_pair(mock_adpt, 'host_uuid', pair_count=4)
self.assertEqual(['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h'], resp)
# Make sure that the job was built properly
mock_adpt.read.assert_called_once_with(
'ManagedSystem', root_id='host_uuid', suffix_type=c.SUFFIX_TYPE_DO,
suffix_parm=vfc_mapper._GET_NEXT_WWPNS)
job_w.create_job_parameter.assert_called_once_with(
'numberPairsRequested', '4')
def test_build_wwpn_pair(self, mock_job):
mock_adpt = mock.MagicMock()
mock_adpt.read.return_value = mock.Mock()
# Mock out the job response
job_w = mock.MagicMock()
mock_job.wrap.return_value = job_w
job_w.get_job_results_as_dict.return_value = {'wwpnList':
'a,b,c,d,e,f,g,h'}
# Invoke and validate
resp = vfc_mapper.build_wwpn_pair(mock_adpt, 'host_uuid', pair_count=4)
self.assertEqual(['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h'], resp)
# Make sure that the job was built properly
mock_adpt.read.assert_called_once_with(
'ManagedSystem', root_id='host_uuid', suffix_type=c.SUFFIX_TYPE_DO,
suffix_parm=vfc_mapper._GET_NEXT_WWPNS)
job_w.create_job_parameter.assert_called_once_with(
'numberPairsRequested', '4')
