yardstick/benchmark/contexts/standalone/sriov.py

   1 # Copyright (c) 2016-2017 Intel Corporation
   2 #
   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
   6 #
   7 #      http://www.apache.org/licenses/LICENSE-2.0
   8 #
   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.
  14
  15 from __future__ import absolute_import
  16 import os
  17 import logging
  18 import collections
  19 from collections import OrderedDict
  20
  21 from yardstick import ssh
  22 from yardstick.network_services.utils import get_nsb_option
  23 from yardstick.network_services.utils import provision_tool
  24 from yardstick.benchmark.contexts.base import Context
  25 from yardstick.benchmark.contexts.standalone.model import Libvirt
  26 from yardstick.benchmark.contexts.standalone.model import StandaloneContextHelper
  27 from yardstick.benchmark.contexts.standalone.model import Server
  28 from yardstick.network_services.utils import PciAddress
  29
  30 LOG = logging.getLogger(__name__)
  31
  32
  33 class SriovContext(Context):
  34     """ This class handles SRIOV standalone nodes - VM running on Non-Managed NFVi
  35     Configuration: sr-iov
  36     """
  37
  38     __context_type__ = "StandaloneSriov"
  39
  40     def __init__(self):
  41         self.file_path = None
  42         self.sriov = []
  43         self.first_run = True
  44         self.dpdk_devbind = ''
  45         self.vm_names = []
  46         self.nfvi_host = []
  47         self.nodes = []
  48         self.networks = {}
  49         self.attrs = {}
  50         self.vm_flavor = None
  51         self.servers = None
  52         self.helper = StandaloneContextHelper()
  53         self.vnf_node = Server()
  54         self.drivers = []
  55         super(SriovContext, self).__init__()
  56
  57     def init(self, attrs):
  58         """initializes itself from the supplied arguments"""
  59         super(SriovContext, self).init(attrs)
  60
  61         self.file_path = attrs.get("file", "pod.yaml")
  62
  63         self.nodes, self.nfvi_host, self.host_mgmt = \
  64             self.helper.parse_pod_file(self.file_path, 'Sriov')
  65
  66         self.attrs = attrs
  67         self.vm_flavor = attrs.get('flavor', {})
  68         self.servers = attrs.get('servers', {})
  69         self.vm_deploy = attrs.get("vm_deploy", True)
  70         # add optional static network definition
  71         self.networks = attrs.get("networks", {})
  72
  73         LOG.debug("Nodes: %r", self.nodes)
  74         LOG.debug("NFVi Node: %r", self.nfvi_host)
  75         LOG.debug("Networks: %r", self.networks)
  76
  77     def deploy(self):
  78         """don't need to deploy"""
  79
  80         # Todo: NFVi deploy (sriov, vswitch, ovs etc) based on the config.
  81         if not self.vm_deploy:
  82             return
  83
  84         self.connection = ssh.SSH.from_node(self.host_mgmt)
  85         self.dpdk_devbind = provision_tool(
  86             self.connection,
  87             os.path.join(get_nsb_option("bin_path"), "dpdk-devbind.py"))
  88
  89         #    Todo: NFVi deploy (sriov, vswitch, ovs etc) based on the config.
  90         StandaloneContextHelper.install_req_libs(self.connection)
  91         self.networks = StandaloneContextHelper.get_nic_details(
  92             self.connection, self.networks, self.dpdk_devbind)
  93         self.nodes = self.setup_sriov_context()
  94
  95         LOG.debug("Waiting for VM to come up...")
  96         self.nodes = StandaloneContextHelper.wait_for_vnfs_to_start(self.connection,
  97                                                                     self.servers,
  98                                                                     self.nodes)
  99
 100     def undeploy(self):
 101         """don't need to undeploy"""
 102
 103         if not self.vm_deploy:
 104             return
 105
 106         # Todo: NFVi undeploy (sriov, vswitch, ovs etc) based on the config.
 107         for vm in self.vm_names:
 108             Libvirt.check_if_vm_exists_and_delete(vm, self.connection)
 109
 110         # Bind nics back to kernel
 111         for ports in self.networks.values():
 112             # enable VFs for given...
 113             build_vfs = "echo 0 > /sys/bus/pci/devices/{0}/sriov_numvfs"
 114             self.connection.execute(build_vfs.format(ports.get('phy_port')))
 115
 116     def _get_server(self, attr_name):
 117         """lookup server info by name from context
 118
 119         Keyword arguments:
 120         attr_name -- A name for a server listed in nodes config file
 121         """
 122         node_name, name = self.split_name(attr_name)
 123         if name is None or self.name != name:
 124             return None
 125
 126         matching_nodes = (n for n in self.nodes if n["name"] == node_name)
 127         try:
 128             # A clone is created in order to avoid affecting the
 129             # original one.
 130             node = dict(next(matching_nodes))
 131         except StopIteration:
 132             return None
 133
 134         try:
 135             duplicate = next(matching_nodes)
 136         except StopIteration:
 137             pass
 138         else:
 139             raise ValueError("Duplicate nodes!!! Nodes: %s %s" %
 140                              (node, duplicate))
 141
 142         node["name"] = attr_name
 143         return node
 144
 145     def _get_network(self, attr_name):
 146         if not isinstance(attr_name, collections.Mapping):
 147             network = self.networks.get(attr_name)
 148
 149         else:
 150             # Don't generalize too much  Just support vld_id
 151             vld_id = attr_name.get('vld_id', {})
 152             # for standalone context networks are dicts
 153             iter1 = (n for n in self.networks.values() if n.get('vld_id') == vld_id)
 154             network = next(iter1, None)
 155
 156         if network is None:
 157             return None
 158
 159         result = {
 160             # name is required
 161             "name": network["name"],
 162             "vld_id": network.get("vld_id"),
 163             "segmentation_id": network.get("segmentation_id"),
 164             "network_type": network.get("network_type"),
 165             "physical_network": network.get("physical_network"),
 166         }
 167         return result
 168
 169     def configure_nics_for_sriov(self):
 170         vf_cmd = "ip link set {0} vf 0 mac {1}"
 171         for ports in self.networks.values():
 172             host_driver = ports.get('driver')
 173             if host_driver not in self.drivers:
 174                 self.connection.execute("rmmod %svf" % host_driver)
 175                 self.drivers.append(host_driver)
 176
 177             # enable VFs for given...
 178             build_vfs = "echo 1 > /sys/bus/pci/devices/{0}/sriov_numvfs"
 179             self.connection.execute(build_vfs.format(ports.get('phy_port')))
 180
 181             # configure VFs...
 182             mac = StandaloneContextHelper.get_mac_address()
 183             interface = ports.get('interface')
 184             if interface is not None:
 185                 self.connection.execute(vf_cmd.format(interface, mac))
 186
 187             vf_pci = self._get_vf_data(ports.get('phy_port'), mac, interface)
 188             ports.update({
 189                 'vf_pci': vf_pci,
 190                 'mac': mac
 191             })
 192
 193         LOG.info('Ports %s', self.networks)
 194
 195     def _enable_interfaces(self, index, idx, vfs, cfg):
 196         vf_spoofchk = "ip link set {0} vf 0 spoofchk off"
 197
 198         vf = self.networks[vfs[0]]
 199         vpci = PciAddress(vf['vpci'].strip())
 200         # Generate the vpci for the interfaces
 201         slot = index + idx + 10
 202         vf['vpci'] = \
 203             "{}:{}:{:02x}.{}".format(vpci.domain, vpci.bus, slot, vpci.function)
 204         Libvirt.add_sriov_interfaces(
 205             vf['vpci'], vf['vf_pci']['vf_pci'], vf['mac'], str(cfg))
 206         self.connection.execute("ifconfig %s up" % vf['interface'])
 207         self.connection.execute(vf_spoofchk.format(vf['interface']))
 208
 209     def setup_sriov_context(self):
 210         nodes = []
 211
 212         #   1 : modprobe host_driver with num_vfs
 213         self.configure_nics_for_sriov()
 214
 215         for index, (key, vnf) in enumerate(OrderedDict(self.servers).items()):
 216             cfg = '/tmp/vm_sriov_%s.xml' % str(index)
 217             vm_name = "vm_%s" % str(index)
 218
 219             # 1. Check and delete VM if already exists
 220             Libvirt.check_if_vm_exists_and_delete(vm_name, self.connection)
 221
 222             _, mac = Libvirt.build_vm_xml(self.connection, self.vm_flavor, cfg, vm_name, index)
 223             # 2: Cleanup already available VMs
 224             for idx, (vkey, vfs) in enumerate(OrderedDict(vnf["network_ports"]).items()):
 225                 if vkey == "mgmt":
 226                     continue
 227                 self._enable_interfaces(index, idx, vfs, cfg)
 228
 229             # copy xml to target...
 230             self.connection.put(cfg, cfg)
 231
 232             # NOTE: launch through libvirt
 233             LOG.info("virsh create ...")
 234             Libvirt.virsh_create_vm(self.connection, cfg)
 235
 236             self.vm_names.append(vm_name)
 237
 238             # build vnf node details
 239             nodes.append(self.vnf_node.generate_vnf_instance(self.vm_flavor,
 240                                                              self.networks,
 241                                                              self.host_mgmt.get('ip'),
 242                                                              key, vnf, mac))
 243
 244         return nodes
 245
 246     def _get_vf_data(self, value, vfmac, pfif):
 247         vf_data = {
 248             "mac": vfmac,
 249             "pf_if": pfif
 250         }
 251         vfs = StandaloneContextHelper.get_virtual_devices(self.connection, value)
 252         for k, v in vfs.items():
 253             m = PciAddress(k.strip())
 254             m1 = PciAddress(value.strip())
 255             if m.bus == m1.bus:
 256                 vf_data.update({"vf_pci": str(v)})
 257                 break
 258
 259         return vf_data