105 lines
3.7 KiB
Python
105 lines
3.7 KiB
Python
# Copyright (c) 2014 Hewlett-Packard Development Company, L.P.
|
|
# 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.
|
|
|
|
import copy
|
|
|
|
from oslo_serialization import jsonutils
|
|
from oslo_utils import versionutils
|
|
import six
|
|
|
|
from nova import objects
|
|
from nova.objects import base
|
|
from nova.objects import fields
|
|
|
|
|
|
@base.NovaObjectRegistry.register
|
|
class PciDevicePool(base.NovaObject):
|
|
# Version 1.0: Initial version
|
|
# Version 1.1: Added numa_node field
|
|
VERSION = '1.1'
|
|
|
|
fields = {
|
|
'product_id': fields.StringField(),
|
|
'vendor_id': fields.StringField(),
|
|
'numa_node': fields.IntegerField(nullable=True),
|
|
'tags': fields.DictOfNullableStringsField(),
|
|
'count': fields.IntegerField(),
|
|
}
|
|
|
|
def obj_make_compatible(self, primitive, target_version):
|
|
target_version = versionutils.convert_version_to_tuple(target_version)
|
|
if target_version < (1, 1) and 'numa_node' in primitive:
|
|
del primitive['numa_node']
|
|
|
|
# NOTE(pmurray): before this object existed the pci device pool data was
|
|
# stored as a dict. For backward compatibility we need to be able to read
|
|
# it in from a dict
|
|
@classmethod
|
|
def from_dict(cls, value):
|
|
pool_dict = copy.copy(value)
|
|
pool = cls()
|
|
pool.vendor_id = pool_dict.pop("vendor_id")
|
|
pool.product_id = pool_dict.pop("product_id")
|
|
pool.numa_node = pool_dict.pop("numa_node", None)
|
|
pool.count = pool_dict.pop("count")
|
|
pool.tags = pool_dict
|
|
return pool
|
|
|
|
# NOTE(sbauza): Before using objects, pci stats was a list of
|
|
# dictionaries not having tags. For compatibility with other modules, let's
|
|
# create a reversible method
|
|
def to_dict(self):
|
|
pci_pool = base.obj_to_primitive(self)
|
|
tags = pci_pool.pop('tags', {})
|
|
for k, v in six.iteritems(tags):
|
|
pci_pool[k] = v
|
|
return pci_pool
|
|
|
|
|
|
@base.NovaObjectRegistry.register
|
|
class PciDevicePoolList(base.ObjectListBase, base.NovaObject):
|
|
# Version 1.0: Initial version
|
|
# PciDevicePool <= 1.0
|
|
# Version 1.1: PciDevicePool version 1.1
|
|
VERSION = '1.1'
|
|
fields = {
|
|
'objects': fields.ListOfObjectsField('PciDevicePool'),
|
|
}
|
|
|
|
|
|
def from_pci_stats(pci_stats):
|
|
"""Create and return a PciDevicePoolList from the data stored in the db,
|
|
which can be either the serialized object, or, prior to the creation of the
|
|
device pool objects, a simple dict or a list of such dicts.
|
|
"""
|
|
pools = []
|
|
if isinstance(pci_stats, six.string_types):
|
|
try:
|
|
pci_stats = jsonutils.loads(pci_stats)
|
|
except (ValueError, TypeError):
|
|
pci_stats = None
|
|
if pci_stats:
|
|
# Check for object-ness, or old-style storage format.
|
|
if 'nova_object.namespace' in pci_stats:
|
|
return objects.PciDevicePoolList.obj_from_primitive(pci_stats)
|
|
else:
|
|
# This can be either a dict or a list of dicts
|
|
if isinstance(pci_stats, list):
|
|
pools = [objects.PciDevicePool.from_dict(stat)
|
|
for stat in pci_stats]
|
|
else:
|
|
pools = [objects.PciDevicePool.from_dict(pci_stats)]
|
|
return objects.PciDevicePoolList(objects=pools)
|