67e1a39a7e
For PPC64 architecture there is a different behavior to discover the host-devices and scsi disk rescan. Adding implementation for the same. Change-Id: Id2283195d2b6002175079070a0ff0a137a9d6806
66 lines
2.6 KiB
Python
66 lines
2.6 KiB
Python
# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from oslo_log import log as logging
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from os_brick import initiator
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from os_brick.initiator.connectors import fibre_channel
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from os_brick.initiator import linuxfc
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LOG = logging.getLogger(__name__)
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class FibreChannelConnectorPPC64(fibre_channel.FibreChannelConnector):
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"""Connector class to attach/detach Fibre Channel volumes on PPC64 arch."""
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platform = initiator.PLATFORM_PPC64
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def __init__(self, root_helper, driver=None,
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execute=None, use_multipath=False,
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device_scan_attempts=initiator.DEVICE_SCAN_ATTEMPTS_DEFAULT,
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*args, **kwargs):
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super(FibreChannelConnectorPPC64, self).__init__(
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root_helper,
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driver=driver,
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execute=execute,
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device_scan_attempts=device_scan_attempts,
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*args, **kwargs)
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self._linuxfc = linuxfc.LinuxFibreChannelPPC64(root_helper, execute)
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self.use_multipath = use_multipath
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def set_execute(self, execute):
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super(FibreChannelConnectorPPC64, self).set_execute(execute)
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self._linuxscsi.set_execute(execute)
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self._linuxfc.set_execute(execute)
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def _get_host_devices(self, possible_devs, lun):
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host_devices = []
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for pci_num, target_wwn in possible_devs:
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host_device = "/dev/disk/by-path/fc-%s-lun-%s" % (
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target_wwn,
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self._linuxscsi.process_lun_id(lun))
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host_devices.append(host_device)
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return host_devices
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def _get_possible_volume_paths(self, connection_properties, hbas):
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ports = connection_properties['target_wwn']
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it_map = connection_properties['initiator_target_map']
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for hba in hbas:
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if hba['node_name'] in it_map.keys():
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hba['target_wwn'] = it_map.get(hba['node_name'])
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possible_devs = self._get_possible_devices(hbas, ports)
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lun = connection_properties.get('target_lun', 0)
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host_paths = self._get_host_devices(possible_devs, lun)
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return host_paths
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