You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
62 lines
2.4 KiB
62 lines
2.4 KiB
# 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 nova.conf |
|
from nova import utils |
|
from nova.virt.libvirt.volume import volume as libvirt_volume |
|
|
|
from os_brick import initiator |
|
from os_brick.initiator import connector |
|
|
|
from oslo_log import log as logging |
|
|
|
LOG = logging.getLogger(__name__) |
|
|
|
CONF = nova.conf.CONF |
|
|
|
|
|
class LibvirtNVMEVolumeDriver(libvirt_volume.LibvirtVolumeDriver): |
|
"""Driver to attach NVMe volumes to libvirt.""" |
|
|
|
def __init__(self, connection): |
|
super(LibvirtNVMEVolumeDriver, |
|
self).__init__(connection) |
|
|
|
self.connector = connector.InitiatorConnector.factory( |
|
initiator.NVME, utils.get_root_helper(), |
|
device_scan_attempts=CONF.libvirt.num_nvme_discover_tries) |
|
|
|
def connect_volume(self, connection_info, instance): |
|
|
|
device_info = self.connector.connect_volume( |
|
connection_info['data']) |
|
LOG.debug("Connecting NVMe volume with device_info %s", |
|
device_info, instance=instance) |
|
|
|
connection_info['data']['device_path'] = device_info['path'] |
|
|
|
def disconnect_volume(self, connection_info, instance): |
|
"""Detach the volume from the instance.""" |
|
LOG.debug("Disconnecting NVMe disk", instance=instance) |
|
self.connector.disconnect_volume( |
|
connection_info['data'], None) |
|
super(LibvirtNVMEVolumeDriver, |
|
self).disconnect_volume(connection_info, instance) |
|
|
|
def extend_volume(self, connection_info, instance, requested_size): |
|
"""Extend the volume.""" |
|
LOG.debug("calling os-brick to extend NVMe Volume", instance=instance) |
|
new_size = self.connector.extend_volume(connection_info['data']) |
|
LOG.debug("Extend NVMe Volume %s; new_size=%s", |
|
connection_info['data']['device_path'], |
|
new_size, instance=instance) |
|
return new_size
|
|
|