cyborg/cyborg/objects/driver_objects/driver_attach_handle.py

70 lines
2.9 KiB
Python

# Copyright 2018 Lenovo (Beijing) Co.,LTD.
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from oslo_versionedobjects import base as object_base
from cyborg.objects import fields as object_fields
from cyborg.objects import base
from cyborg.objects.attach_handle import AttachHandle
from oslo_log import log as logging
LOG = logging.getLogger(__name__)
@base.CyborgObjectRegistry.register
class DriverAttachHandle(base.DriverObjectBase,
object_base.VersionedObjectDictCompat):
# Version 1.0: Initial version
VERSION = '1.0'
fields = {
'attach_type': object_fields.StringField(nullable=False),
# PCI BDF or mediated device ID...
'attach_info': object_fields.StringField(nullable=False),
# The status of attach_handle, is in use or not.
'in_use': object_fields.BooleanField(nullable=False, default=False)
}
def create(self, context, deployable_id, cpid_id):
"""Create a driver-side AttachHandle object, call AttachHandle
Object to store in DB."""
attach_handle_obj = AttachHandle(context=context,
deployable_id=deployable_id,
cpid_id=cpid_id,
attach_type=self.attach_type,
attach_info=self.attach_info,
in_use=self.in_use
)
attach_handle_obj.create(context)
def destroy(self, context, deployable_id):
ah_obj = AttachHandle.get_ah_by_depid_attachinfo(context,
deployable_id,
self.attach_info)
if ah_obj is not None:
ah_obj.destroy(context)
@classmethod
def list(cls, context, deployable_id):
"""Form a driver-side attach_handle list for one deployable."""
ah_obj_list = AttachHandle.get_ah_list_by_deployable_id(
context, deployable_id)
driver_ah_obj_list = []
for ah_obj in ah_obj_list:
driver_ah_obj = cls(context=context,
attach_type=ah_obj.attach_type,
attach_info=ah_obj.attach_info,
in_use=ah_obj.in_use)
driver_ah_obj_list.append(driver_ah_obj)
return driver_ah_obj_list