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