a1cbe7c08b
Found some copyrights that were not updated the last time the file was changed. Updating copyright dates to reflect the most recent change. Change-Id: Ib6f545db10b77cc7a0b2295a21e824b63974bda5
116 lines
4.4 KiB
Python
116 lines
4.4 KiB
Python
# Copyright 2014, 2018 IBM Corp.
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#
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# 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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import math
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from nova.objects import fields
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from oslo_log import log as logging
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from oslo_serialization import jsonutils
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from nova import conf as cfg
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LOG = logging.getLogger(__name__)
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CONF = cfg.CONF
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# Power VM hypervisor info
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# Normally, the hypervisor version is a string in the form of '8.0.0' and
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# converted to an int with nova.virt.utils.convert_version_to_int() however
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# there isn't currently a mechanism to retrieve the exact version.
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# Complicating this is the fact that nova conductor only allows live migration
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# from the source host to the destination if the source is equal to or less
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# than the destination version. PowerVM live migration limitations are
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# checked by the PowerVM capabilities flags and not specific version levels.
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# For that reason, we'll just publish the major level.
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IBM_POWERVM_HYPERVISOR_VERSION = 8
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# The types of LPARS that are supported.
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POWERVM_SUPPORTED_INSTANCES = [
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(fields.Architecture.PPC64, fields.HVType.PHYP, fields.VMMode.HVM),
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(fields.Architecture.PPC64LE, fields.HVType.PHYP, fields.VMMode.HVM),
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]
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# cpu_info that will be returned by build_host_stats_from_entry()
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HOST_STATS_CPU_INFO = jsonutils.dumps({'vendor': 'ibm', 'arch': 'ppc64'})
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def build_host_resource_from_ms(ms_wrapper):
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"""Build the host resource dict from an MS adapter wrapper
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This method builds the host resource dictionary from the
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ManagedSystem Entry wrapper
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:param ms_wrapper: ManagedSystem Entry Wrapper.
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"""
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data = {}
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# Calculate the vcpus
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proc_units = float(ms_wrapper.proc_units_configurable)
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proc_units_avail = float(ms_wrapper.proc_units_avail)
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pu_used = proc_units - proc_units_avail
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data['vcpus'] = int(math.ceil(proc_units))
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data['vcpus_used'] = int(math.ceil(pu_used))
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data['memory_mb'] = ms_wrapper.memory_configurable
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data['memory_mb_used'] = (ms_wrapper.memory_configurable -
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ms_wrapper.memory_free)
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data["hypervisor_type"] = fields.HVType.PHYP
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data["hypervisor_version"] = IBM_POWERVM_HYPERVISOR_VERSION
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data["hypervisor_hostname"] = CONF.host
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data["cpu_info"] = HOST_STATS_CPU_INFO
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data["numa_topology"] = None
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data["supported_instances"] = POWERVM_SUPPORTED_INSTANCES
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stats = {'proc_units': '%.2f' % proc_units,
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'proc_units_used': '%.2f' % pu_used,
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'memory_region_size': ms_wrapper.memory_region_size
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}
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data["stats"] = stats
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data["pci_passthrough_devices"] = _build_pci_json(ms_wrapper)
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return data
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def _build_pci_json(sys_w):
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"""Build the JSON string for the pci_passthrough_devices host resource.
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:param sys_w: pypowervm.wrappers.managed_system.System wrapper of the host.
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:return: JSON string representing a list of "PCI passthrough device" dicts,
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See nova.objects.pci_device.PciDevice.
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"""
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# Produce SR-IOV PCI data. Devices are validated by virtue of the network
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# name associated with their label, which must be cleared via an entry in
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# the pci_passthrough_whitelist in the nova.conf. Each Claim allocates a
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# device and filters it from the list for subsequent claims; so we generate
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# the maximum number of "devices" (VFs) we could possibly create on each
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# port. These are NOT real VFs. The real VFs get created on the fly by
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# VNIC.create.
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pci_devs = [
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{"physical_network": pport.label or 'default',
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"label": pport.label or 'default',
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"dev_type": fields.PciDeviceType.SRIOV_VF,
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"address": '*:%d:%d.%d' % (sriov.sriov_adap_id, pport.port_id, vfn),
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"parent_addr": "*:*:*.*",
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"vendor_id": "*",
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"product_id": "*",
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"numa_node": 1}
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for sriov in sys_w.asio_config.sriov_adapters
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for pport in sriov.phys_ports
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for vfn in range(pport.supp_max_lps)]
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return jsonutils.dumps(pci_devs)
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