+# Copyright (c) 2019 Cisco and/or its affiliates.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at:
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""QEMU Manager library."""
+
+from collections import OrderedDict
+
+from robot.libraries.BuiltIn import BuiltIn
+
+from resources.libraries.python.Constants import Constants
+from resources.libraries.python.CpuUtils import CpuUtils
+from resources.libraries.python.QemuUtils import QemuUtils
+from resources.libraries.python.topology import NodeType, Topology
+
+__all__ = ["QemuManager"]
+
+
+def get_affinity_vm(nodes, node, nf_chains=1, nf_nodes=1, nf_chain=1, nf_node=1,
+ cpu_count_int=1):
+ """Get affinity of VM. Result will be used to compute the amount of
+ CPUs and also affinity.
+
+ :param node: SUT nodes.
+ :param node: DUT node.
+ :param nf_chains: Number of NF chains.
+ :param nf_nodes: Number of NF nodes in chain.
+ :param nf_chain: Chain ID.
+ :param nf_node: Node ID.
+ :param cpu_count_int: Amount of Dataplane threads of vswitch.
+ :type nodes: dict
+ :type node: dict
+ :type nf_chains: int
+ :type nf_nodes: int
+ :type nf_chain: int
+ :type nf_node: int
+ :type cpu_count_int: int
+ :returns: List of CPUs allocated to VM.
+ :rtype: list
+ """
+ sut_sc = 1
+ dut_mc = 1
+ dut_dc = cpu_count_int
+ skip_cnt = sut_sc + dut_mc + dut_dc
+ dtc = cpu_count_int
+
+ interface_list = []
+ interface_list.append(
+ BuiltIn().get_variable_value('${{{node}_if1}}'.format(node=node)))
+ interface_list.append(
+ BuiltIn().get_variable_value('${{{node}_if2}}'.format(node=node)))
+
+ cpu_node = Topology.get_interfaces_numa_node(nodes[node], *interface_list)
+
+ nf_cpus = CpuUtils.cpu_slice_of_list_for_nf(
+ node=nodes[node], cpu_node=cpu_node, chains=nf_chains,
+ nodeness=nf_nodes, chain_id=nf_chain, node_id=nf_node, mtcr=2, dtcr=1,
+ dtc=dtc, skip_cnt=skip_cnt)
+
+ return nf_cpus
+
+class QemuManager(object):
+ """QEMU lifecycle management class"""
+
+ # Use one instance of class per tests.
+ ROBOT_LIBRARY_SCOPE = 'TEST CASE'
+
+ def __init__(self, nodes):
+ """Init QemuManager object."""
+ self.machines = None
+ self.machines_affinity = None
+ self.nodes = nodes
+
+ def initialize(self):
+ """Initialize QemuManager object."""
+ self.machines = OrderedDict()
+ self.machines_affinity = OrderedDict()
+
+ def construct_vms_on_node(self, **kwargs):
+ """Construct 1..Mx1..N VMs(s) on node with specified name.
+
+ :param kwargs: Named parameters.
+ :type kwargs: dict
+ """
+ node = kwargs['node']
+ nf_chains = int(kwargs['nf_chains'])
+ nf_nodes = int(kwargs['nf_nodes'])
+ queues = kwargs['rxq_count_int'] if kwargs['auto_scale'] else 1
+ cpu_count_int = kwargs['cpu_count_int'] if kwargs['auto_scale'] else 1
+
+ img = Constants.QEMU_PERF_VM_KERNEL
+
+ for nf_chain in range(1, nf_chains + 1):
+ for nf_node in range(1, nf_nodes + 1):
+ qemu_id = (nf_chain - 1) * nf_nodes + nf_node
+ name = '{node}_{qemu_id}'.format(node=node, qemu_id=qemu_id)
+ sock1 = '/var/run/vpp/sock-{qemu_id}-1'.format(qemu_id=qemu_id)
+ sock2 = '/var/run/vpp/sock-{qemu_id}-2'.format(qemu_id=qemu_id)
+ vif1_mac = kwargs['tg_if1_mac'] if nf_node == 1 \
+ else '52:54:00:00:{id:02x}:02'.format(id=qemu_id - 1)
+ vif2_mac = kwargs['tg_if2_mac'] if nf_node == nf_nodes \
+ else '52:54:00:00:{id:02x}:01'.format(id=qemu_id + 1)
+
+ self.machines_affinity[name] = get_affinity_vm(
+ nodes=self.nodes, node=node, nf_chains=nf_chains,
+ nf_nodes=nf_nodes, nf_chain=nf_chain, nf_node=nf_node,
+ cpu_count_int=cpu_count_int)
+
+ self.machines[name] = QemuUtils(
+ node=self.nodes[node], qemu_id=qemu_id,
+ smp=len(self.machines_affinity[name]), mem=4096,
+ vnf=kwargs['vnf'], img=img)
+ self.machines[name].configure_kernelvm_vnf(
+ mac1='52:54:00:00:{id:02x}:01'.format(id=qemu_id),
+ mac2='52:54:00:00:{id:02x}:02'.format(id=qemu_id),
+ vif1_mac=vif1_mac,
+ vif2_mac=vif2_mac)
+ self.machines[name].qemu_add_vhost_user_if(
+ sock1, jumbo_frames=kwargs['jumbo'], queues=queues,
+ queue_size=1024)
+ self.machines[name].qemu_add_vhost_user_if(
+ sock2, jumbo_frames=kwargs['jumbo'], queues=queues,
+ queue_size=1024)
+
+ def construct_vms_on_all_nodes(self, **kwargs):
+ """Construct 1..Mx1..N VMs(s) with specified name on all nodes.
+
+ :param kwargs: Named parameters.
+ :type kwargs: dict
+ """
+ self.initialize()
+ for node in self.nodes:
+ if self.nodes[node]['type'] == NodeType.DUT:
+ self.construct_vms_on_node(node=node, **kwargs)
+
+ def start_all_vms(self, pinning=False):
+ """Start all added VMs in manager.
+
+ :param pinning: If True, then do also QEMU process pinning.
+ :type pinning: bool
+ """
+ for machine, machine_affinity in zip(self.machines.values(),
+ self.machines_affinity.values()):
+ machine.qemu_start()
+ if pinning:
+ machine.qemu_set_affinity(*machine_affinity)
+
+ def set_scheduler_all_vms(self):
+ """Set CFS scheduler policy on all VMs in manager."""
+ for machine in self.machines.values():
+ machine.qemu_set_scheduler_policy()
+
+ def kill_all_vms(self, force=False):
+ """Kill all added VMs in manager.
+
+ :param force: Force kill all Qemu instances by pkill qemu if True.
+ :type force: bool
+ """
+ for machine in self.machines.values():
+ if force:
+ machine.qemu_kill_all()
+ else:
+ machine.qemu_kill()
Code Review / csit.git / commitdiff