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- # -*- coding: utf-8 -*-
-
- #
- # 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 oslo_messaging as messaging
- from oslo_service import periodic_task
-
- from cyborg.accelerator.drivers.fpga.base import FPGADriver
- from cyborg.agent.resource_tracker import ResourceTracker
- from cyborg.agent.rpcapi import AgentAPI
- from cyborg.image.api import API as ImageAPI
- from cyborg.conductor import rpcapi as cond_api
- from cyborg.conf import CONF
-
-
- class AgentManager(periodic_task.PeriodicTasks):
- """Cyborg Agent manager main class."""
-
- RPC_API_VERSION = '1.0'
- target = messaging.Target(version=RPC_API_VERSION)
-
- def __init__(self, topic, host=None):
- super(AgentManager, self).__init__(CONF)
- self.topic = topic
- self.host = host or CONF.host
- self.fpga_driver = FPGADriver()
- self.cond_api = cond_api.ConductorAPI()
- self.agent_api = AgentAPI()
- self.image_api = ImageAPI()
- self._rt = ResourceTracker(host, self.cond_api)
-
- def periodic_tasks(self, context, raise_on_error=False):
- return self.run_periodic_tasks(context, raise_on_error=raise_on_error)
-
- def hardware_list(self, context, values):
- """List installed hardware."""
- pass
-
- def fpga_program(self, context, deployable_uuid, image_uuid):
- """ Program a FPGA regoin, image can be a url or local file"""
- # TODO (Shaohe Feng) Get image from glance.
- # And add claim and rollback logical.
- path = self._download_bitstream(context, image_uuid)
- dep = self.cond_api.deployable_get(context, deployable_uuid)
- driver = self.fpga_driver.create(dep.vendor)
- driver.program(dep.address, path)
-
- def _download_bitstream(self, context, bitstream_uuid):
- """download the bistream
-
- :param context: the context
- :param bistream_uuid: v4 uuid of the bitstream to reprogram
- :returns: the path to bitstream downloaded, None if fail to download
- """
- download_path = "/tmp/" + bitstream_uuid + ".bin"
- self.image_api.download(context,
- bitstream_uuid,
- dest_path=download_path)
- return download_path
-
- @periodic_task.periodic_task(run_immediately=True)
- def update_available_resource(self, context, startup=True):
- """update all kinds of accelerator resources from their drivers."""
- self._rt.update_usage(context)
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