1 # Copyright (c) 2016-2017 Intel Corporation
3 # Licensed under the Apache License, Version 2.0 (the "License");
4 # you may not use this file except in compliance with the License.
5 # You may obtain a copy of the License at
7 # http://www.apache.org/licenses/LICENSE-2.0
9 # Unless required by applicable law or agreed to in writing, software
10 # distributed under the License is distributed on an "AS IS" BASIS,
11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 # See the License for the specific language governing permissions and
13 # limitations under the License.
15 from __future__ import absolute_import
20 from yardstick import ssh
21 from yardstick.network_services.utils import get_nsb_option
22 from yardstick.benchmark.contexts.base import Context
23 from yardstick.benchmark.contexts.standalone import model
24 from yardstick.network_services.utils import PciAddress
26 LOG = logging.getLogger(__name__)
29 class SriovContext(Context):
30 """ This class handles SRIOV standalone nodes - VM running on Non-Managed NFVi
34 __context_type__ = "StandaloneSriov"
40 self.dpdk_devbind = os.path.join(get_nsb_option('bin_path'),
49 self.helper = model.StandaloneContextHelper()
50 self.vnf_node = model.Server()
52 super(SriovContext, self).__init__()
54 def init(self, attrs):
55 """initializes itself from the supplied arguments"""
56 super(SriovContext, self).init(attrs)
58 self.file_path = attrs.get("file", "pod.yaml")
60 self.nodes, self.nfvi_host, self.host_mgmt = \
61 self.helper.parse_pod_file(self.file_path, 'Sriov')
64 self.vm_flavor = attrs.get('flavor', {})
65 self.servers = attrs.get('servers', {})
66 self.vm_deploy = attrs.get("vm_deploy", True)
67 # add optional static network definition
68 self.networks = attrs.get("networks", {})
70 LOG.debug("Nodes: %r", self.nodes)
71 LOG.debug("NFVi Node: %r", self.nfvi_host)
72 LOG.debug("Networks: %r", self.networks)
75 """don't need to deploy"""
77 # Todo: NFVi deploy (sriov, vswitch, ovs etc) based on the config.
78 if not self.vm_deploy:
81 self.connection = ssh.SSH.from_node(self.host_mgmt)
83 # Todo: NFVi deploy (sriov, vswitch, ovs etc) based on the config.
84 model.StandaloneContextHelper.install_req_libs(self.connection)
85 self.networks = model.StandaloneContextHelper.get_nic_details(
86 self.connection, self.networks, self.dpdk_devbind)
87 self.nodes = self.setup_sriov_context()
89 LOG.debug("Waiting for VM to come up...")
90 self.nodes = model.StandaloneContextHelper.wait_for_vnfs_to_start(
91 self.connection, self.servers, self.nodes)
94 """don't need to undeploy"""
96 if not self.vm_deploy:
99 # Todo: NFVi undeploy (sriov, vswitch, ovs etc) based on the config.
100 for vm in self.vm_names:
101 model.Libvirt.check_if_vm_exists_and_delete(vm, self.connection)
103 # Bind nics back to kernel
104 for ports in self.networks.values():
105 # enable VFs for given...
106 build_vfs = "echo 0 > /sys/bus/pci/devices/{0}/sriov_numvfs"
107 self.connection.execute(build_vfs.format(ports.get('phy_port')))
109 def _get_physical_nodes(self):
110 return self.nfvi_host
112 def _get_physical_node_for_server(self, server_name):
114 # self.nfvi_host always contain only one host.
115 node_name, ctx_name = self.split_host_name(server_name)
116 if ctx_name is None or self.name != ctx_name:
119 matching_nodes = [s for s in self.servers if s == node_name]
120 if len(matching_nodes) == 0:
123 return "{}.{}".format(self.nfvi_host[0]["name"], self._name)
125 def _get_server(self, attr_name):
126 """lookup server info by name from context
129 attr_name -- A name for a server listed in nodes config file
131 node_name, name = self.split_host_name(attr_name)
132 if name is None or self.name != name:
135 matching_nodes = (n for n in self.nodes if n["name"] == node_name)
137 # A clone is created in order to avoid affecting the
139 node = dict(next(matching_nodes))
140 except StopIteration:
144 duplicate = next(matching_nodes)
145 except StopIteration:
148 raise ValueError("Duplicate nodes!!! Nodes: %s %s"
151 node["name"] = attr_name
154 def _get_network(self, attr_name):
155 if not isinstance(attr_name, collections.Mapping):
156 network = self.networks.get(attr_name)
159 # Don't generalize too much Just support vld_id
160 vld_id = attr_name.get('vld_id', {})
161 # for standalone context networks are dicts
162 iter1 = (n for n in self.networks.values() if n.get('vld_id') == vld_id)
163 network = next(iter1, None)
170 "name": network["name"],
171 "vld_id": network.get("vld_id"),
172 "segmentation_id": network.get("segmentation_id"),
173 "network_type": network.get("network_type"),
174 "physical_network": network.get("physical_network"),
178 def configure_nics_for_sriov(self):
179 vf_cmd = "ip link set {0} vf 0 mac {1}"
180 for ports in self.networks.values():
181 host_driver = ports.get('driver')
182 if host_driver not in self.drivers:
183 self.connection.execute("rmmod %svf" % host_driver)
184 self.drivers.append(host_driver)
186 # enable VFs for given...
187 build_vfs = "echo 1 > /sys/bus/pci/devices/{0}/sriov_numvfs"
188 self.connection.execute(build_vfs.format(ports.get('phy_port')))
191 mac = model.StandaloneContextHelper.get_mac_address()
192 interface = ports.get('interface')
193 if interface is not None:
194 self.connection.execute(vf_cmd.format(interface, mac))
196 vf_pci = self._get_vf_data(ports.get('phy_port'), mac, interface)
202 LOG.info('Ports %s', self.networks)
204 def _enable_interfaces(self, index, idx, vfs, cfg):
205 vf_spoofchk = "ip link set {0} vf 0 spoofchk off"
207 vf = self.networks[vfs[0]]
208 vpci = PciAddress(vf['vpci'].strip())
209 # Generate the vpci for the interfaces
210 slot = index + idx + 10
212 "{}:{}:{:02x}.{}".format(vpci.domain, vpci.bus, slot, vpci.function)
213 self.connection.execute("ifconfig %s up" % vf['interface'])
214 self.connection.execute(vf_spoofchk.format(vf['interface']))
215 return model.Libvirt.add_sriov_interfaces(
216 vf['vpci'], vf['vf_pci']['vf_pci'], vf['mac'], str(cfg))
218 def setup_sriov_context(self):
221 # 1 : modprobe host_driver with num_vfs
222 self.configure_nics_for_sriov()
224 for index, (key, vnf) in enumerate(collections.OrderedDict(
225 self.servers).items()):
226 cfg = '/tmp/vm_sriov_%s.xml' % str(index)
227 vm_name = "vm_%s" % str(index)
229 # 1. Check and delete VM if already exists
230 model.Libvirt.check_if_vm_exists_and_delete(vm_name,
232 xml_str, mac = model.Libvirt.build_vm_xml(
233 self.connection, self.vm_flavor, vm_name, index)
235 # 2: Cleanup already available VMs
236 network_ports = collections.OrderedDict(
237 {k: v for k, v in vnf["network_ports"].items() if k != 'mgmt'})
238 for idx, vfs in enumerate(network_ports.values()):
239 xml_str = self._enable_interfaces(index, idx, vfs, xml_str)
241 # copy xml to target...
242 model.Libvirt.write_file(cfg, xml_str)
243 self.connection.put(cfg, cfg)
245 # NOTE: launch through libvirt
246 LOG.info("virsh create ...")
247 model.Libvirt.virsh_create_vm(self.connection, cfg)
249 self.vm_names.append(vm_name)
251 # build vnf node details
252 nodes.append(self.vnf_node.generate_vnf_instance(
253 self.vm_flavor, self.networks, self.host_mgmt.get('ip'),
258 def _get_vf_data(self, value, vfmac, pfif):
263 vfs = model.StandaloneContextHelper.get_virtual_devices(
264 self.connection, value)
265 for k, v in vfs.items():
266 m = PciAddress(k.strip())
267 m1 = PciAddress(value.strip())
269 vf_data.update({"vf_pci": str(v)})