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