"""QEMU utilities library."""
import json
+
from re import match
from string import Template
from time import sleep
from robot.api import logger
+
from resources.libraries.python.Constants import Constants
from resources.libraries.python.DpdkUtil import DpdkUtil
from resources.libraries.python.DUTSetup import DUTSetup
from resources.libraries.python.OptionString import OptionString
-from resources.libraries.python.VppConfigGenerator import VppConfigGenerator
-from resources.libraries.python.VPPUtil import VPPUtil
from resources.libraries.python.ssh import exec_cmd, exec_cmd_no_error
from resources.libraries.python.topology import NodeType, Topology
+from resources.libraries.python.VppConfigGenerator import VppConfigGenerator
+from resources.libraries.python.VPPUtil import VPPUtil
-__all__ = ["QemuUtils"]
+__all__ = [u"QemuUtils"]
-class QemuUtils(object):
+class QemuUtils:
"""QEMU utilities."""
# Use one instance of class per tests.
- ROBOT_LIBRARY_SCOPE = 'TEST CASE'
+ ROBOT_LIBRARY_SCOPE = u"TEST CASE"
- def __init__(self, node, qemu_id=1, smp=1, mem=512, vnf=None,
- img=Constants.QEMU_VM_IMAGE):
+ def __init__(
+ self, node, qemu_id=1, smp=1, mem=512, vnf=None,
+ img=Constants.QEMU_VM_IMAGE):
"""Initialize QemuUtil class.
:param node: Node to run QEMU on.
self._vhost_id = 0
self._node = node
self._arch = Topology.get_node_arch(self._node)
- dpdk_target = 'arm64-armv8a' if self._arch == 'aarch64' \
- else 'x86_64-native'
- self._testpmd_path = '{path}/{dpdk_target}-linuxapp-gcc/app'\
- .format(path=Constants.QEMU_VM_DPDK, dpdk_target=dpdk_target)
+ dpdk_target = u"arm64-armv8a" if self._arch == u"aarch64" \
+ else u"x86_64-native"
+ self._testpmd_path = f"{Constants.QEMU_VM_DPDK}/" \
+ f"{dpdk_target}-linuxapp-gcc/app"
self._vm_info = {
- 'host': node['host'],
- 'type': NodeType.VM,
- 'port': 10021 + qemu_id,
- 'serial': 4555 + qemu_id,
- 'username': 'cisco',
- 'password': 'cisco',
- 'interfaces': {},
+ u"host": node[u"host"],
+ u"type": NodeType.VM,
+ u"port": 10021 + qemu_id,
+ u"serial": 4555 + qemu_id,
+ u"username": 'cisco',
+ u"password": 'cisco',
+ u"interfaces": {},
}
- if node['port'] != 22:
- self._vm_info['host_port'] = node['port']
- self._vm_info['host_username'] = node['username']
- self._vm_info['host_password'] = node['password']
+ if node[u"port"] != 22:
+ self._vm_info[u"host_port"] = node[u"port"]
+ self._vm_info[u"host_username"] = node[u"username"]
+ self._vm_info[u"host_password"] = node[u"password"]
# Input Options.
self._opt = dict()
- self._opt['qemu_id'] = qemu_id
- self._opt['mem'] = int(mem)
- self._opt['smp'] = int(smp)
- self._opt['img'] = img
- self._opt['vnf'] = vnf
+ self._opt[u"qemu_id"] = qemu_id
+ self._opt[u"mem"] = int(mem)
+ self._opt[u"smp"] = int(smp)
+ self._opt[u"img"] = img
+ self._opt[u"vnf"] = vnf
# Temporary files.
self._temp = dict()
- self._temp['pidfile'] = '/var/run/qemu_{id}.pid'.format(id=qemu_id)
+ self._temp[u"pidfile"] = f"/var/run/qemu_{qemu_id}.pid"
if img == Constants.QEMU_VM_IMAGE:
- self._opt['vm_type'] = 'nestedvm'
- self._temp['qmp'] = '/var/run/qmp_{id}.sock'.format(id=qemu_id)
- self._temp['qga'] = '/var/run/qga_{id}.sock'.format(id=qemu_id)
+ self._opt[u"vm_type"] = u"nestedvm"
+ self._temp[u"qmp"] = f"/var/run/qmp_{qemu_id}.sock"
+ self._temp[u"qga"] = f"/var/run/qga_{qemu_id}.sock"
elif img == Constants.QEMU_VM_KERNEL:
- self._opt['img'], _ = exec_cmd_no_error(
- node,
- 'ls -1 {img}* | tail -1'.format(img=Constants.QEMU_VM_KERNEL),
- message='Qemu Kernel VM image not found!')
- self._opt['vm_type'] = 'kernelvm'
- self._temp['log'] = '/tmp/serial_{id}.log'.format(id=qemu_id)
- self._temp['ini'] = '/etc/vm_init_{id}.conf'.format(id=qemu_id)
- self._opt['initrd'], _ = exec_cmd_no_error(
- node,
- 'ls -1 {initrd}* | tail -1'.format(
- initrd=Constants.QEMU_VM_KERNEL_INITRD),
- message='Qemu Kernel initrd image not found!')
+ self._opt[u"img"], _ = exec_cmd_no_error(
+ node, f"ls -1 {Constants.QEMU_VM_KERNEL}* | tail -1",
+ message=u"Qemu Kernel VM image not found!"
+ )
+ self._opt[u"vm_type"] = u"kernelvm"
+ self._temp[u"log"] = f"/tmp/serial_{qemu_id}.log"
+ self._temp[u"ini"] = f"/etc/vm_init_{qemu_id}.conf"
+ self._opt[u"initrd"], _ = exec_cmd_no_error(
+ node, f"ls -1 {Constants.QEMU_VM_KERNEL_INITRD}* | tail -1",
+ message=u"Qemu Kernel initrd image not found!"
+ )
else:
- raise RuntimeError('QEMU: Unknown VM image option: {}'.format(img))
+ raise RuntimeError(f"QEMU: Unknown VM image option: {img}")
# Computed parameters for QEMU command line.
- self._params = OptionString(prefix='-')
+ self._params = OptionString(prefix=u"-")
self.add_params()
def add_params(self):
"""Set QEMU command line parameters."""
self.add_default_params()
- if self._opt.get('vm_type', '') == 'nestedvm':
+ if self._opt.get(u"vm_type", u"") == u"nestedvm":
self.add_nestedvm_params()
- elif self._opt.get('vm_type', '') == 'kernelvm':
+ elif self._opt.get(u"vm_type", u"") == u"kernelvm":
self.add_kernelvm_params()
else:
- raise RuntimeError('QEMU: Unsupported VM type!')
+ raise RuntimeError(u"QEMU: Unsupported VM type!")
def add_default_params(self):
"""Set default QEMU command line parameters."""
- self._params.add('daemonize')
- self._params.add('nodefaults')
- self._params.add_with_value('name', 'vnf{qemu},debug-threads=on'.format(
- qemu=self._opt.get('qemu_id')))
- self._params.add('no-user-config')
- self._params.add_with_value('monitor', 'none')
- self._params.add_with_value('display', 'none')
- self._params.add_with_value('vga', 'none')
- self._params.add('enable-kvm')
- self._params.add_with_value('pidfile', self._temp.get('pidfile'))
- self._params.add_with_value('cpu', 'host')
-
- if self._arch == 'aarch64':
- machine_args = 'virt,accel=kvm,usb=off,mem-merge=off,gic-version=3'
- else:
- machine_args = 'pc,accel=kvm,usb=off,mem-merge=off'
+ self._params.add(u"daemonize")
+ self._params.add(u"nodefaults")
self._params.add_with_value(
- 'machine', machine_args)
- self._params.add_with_value(
- 'smp', '{smp},sockets=1,cores={smp},threads=1'.format(
- smp=self._opt.get('smp')))
+ u"name", f"vnf{self._opt.get(u'qemu_id')},debug-threads=on"
+ )
+ self._params.add(u"no-user-config")
+ self._params.add_with_value(u"monitor", u"none")
+ self._params.add_with_value(u"display", u"none")
+ self._params.add_with_value(u"vga", u"none")
+ self._params.add(u"enable-kvm")
+ self._params.add_with_value(u"pidfile", self._temp.get(u"pidfile"))
+ self._params.add_with_value(u"cpu", u"host")
+
+ if self._arch == u"aarch64":
+ machine_args = u"virt,accel=kvm,usb=off,mem-merge=off,gic-version=3"
+ else:
+ machine_args = u"pc,accel=kvm,usb=off,mem-merge=off"
+ self._params.add_with_value(u"machine", machine_args)
self._params.add_with_value(
- 'object', 'memory-backend-file,id=mem,size={mem}M,'
- 'mem-path=/dev/hugepages,share=on'.format(mem=self._opt.get('mem')))
+ u"smp", f"{self._opt.get(u'smp')},sockets=1,"
+ f"cores={self._opt.get(u'smp')},threads=1"
+ )
self._params.add_with_value(
- 'm', '{mem}M'.format(mem=self._opt.get('mem')))
- self._params.add_with_value('numa', 'node,memdev=mem')
- self._params.add_with_value('balloon', 'none')
+ u"object", f"memory-backend-file,id=mem,"
+ f"size={self._opt.get(u'mem')}M,mem-path=/dev/hugepages,share=on"
+ )
+ self._params.add_with_value(u"m", f"{self._opt.get(u'mem')}M")
+ self._params.add_with_value(u"numa", u"node,memdev=mem")
+ self._params.add_with_value(u"balloon", u"none")
def add_nestedvm_params(self):
"""Set NestedVM QEMU parameters."""
self._params.add_with_value(
- 'net', 'nic,macaddr=52:54:00:00:{qemu:02x}:ff'.format(
- qemu=self._opt.get('qemu_id')))
+ u"net",
+ f"nic,macaddr=52:54:00:00:{self._opt.get(u'qemu_id'):02x}:ff"
+ )
self._params.add_with_value(
- 'net', 'user,hostfwd=tcp::{info[port]}-:22'.format(
- info=self._vm_info))
- locking = ',file.locking=off'
+ u"net", f"user,hostfwd=tcp::{self._vm_info[u'port']}-:22"
+ )
+ locking = u",file.locking=off"
self._params.add_with_value(
- 'drive', 'file={img},format=raw,cache=none,if=virtio{locking}'.
- format(img=self._opt.get('img'), locking=locking))
+ u"drive", f"file={self._opt.get(u'img')},"
+ f"format=raw,cache=none,if=virtio{locking}"
+ )
self._params.add_with_value(
- 'qmp', 'unix:{qmp},server,nowait'.format(qmp=self._temp.get('qmp')))
+ u"qmp", f"unix:{self._temp.get(u'qmp')},server,nowait"
+ )
self._params.add_with_value(
- 'chardev', 'socket,host=127.0.0.1,port={info[serial]},'
- 'id=gnc0,server,nowait'.format(info=self._vm_info))
- self._params.add_with_value('device', 'isa-serial,chardev=gnc0')
+ u"chardev", f"socket,host=127.0.0.1,"
+ f"port={self._vm_info[u'serial']},id=gnc0,server,nowait")
+ self._params.add_with_value(u"device", u"isa-serial,chardev=gnc0")
self._params.add_with_value(
- 'chardev', 'socket,path={qga},server,nowait,id=qga0'.format(
- qga=self._temp.get('qga')))
- self._params.add_with_value('device', 'isa-serial,chardev=qga0')
+ u"chardev", f"socket,path={self._temp.get(u'qga')},"
+ f"server,nowait,id=qga0"
+ )
+ self._params.add_with_value(u"device", u"isa-serial,chardev=qga0")
def add_kernelvm_params(self):
"""Set KernelVM QEMU parameters."""
- console = 'ttyAMA0' if self._arch == 'aarch64' else 'ttyS0'
- self._params.add_with_value('serial', 'file:{log}'.format(
- log=self._temp.get('log')))
+ console = u"ttyAMA0" if self._arch == u"aarch64" else u"ttyS0"
self._params.add_with_value(
- 'fsdev', 'local,id=root9p,path=/,security_model=none')
+ u"serial", f"file:{self._temp.get(u'log')}"
+ )
self._params.add_with_value(
- 'device', 'virtio-9p-pci,fsdev=root9p,mount_tag=virtioroot')
+ u"fsdev", u"local,id=root9p,path=/,security_model=none"
+ )
self._params.add_with_value(
- 'kernel', '{img}'.format(img=self._opt.get('img')))
+ u"device", u"virtio-9p-pci,fsdev=root9p,mount_tag=virtioroot"
+ )
+ self._params.add_with_value(u"kernel", f"{self._opt.get(u'img')}")
+ self._params.add_with_value(u"initrd", f"{self._opt.get(u'initrd')}")
self._params.add_with_value(
- 'initrd', '{initrd}'.format(initrd=self._opt.get('initrd')))
- self._params.add_with_value(
- 'append', '"ro rootfstype=9p rootflags=trans=virtio '
- 'root=virtioroot console={console} tsc=reliable '
- 'hugepages=256 init={init} fastboot"'.format(
- console=console, init=self._temp.get('ini')))
+ u"append", f"'ro rootfstype=9p rootflags=trans=virtio "
+ f"root=virtioroot console={console} tsc=reliable hugepages=256 "
+ f"init={self._temp.get(u'ini')} fastboot'"
+ )
def create_kernelvm_config_vpp(self, **kwargs):
"""Create QEMU VPP config files.
file.
:type kwargs: dict
"""
- startup = ('/etc/vpp/vm_startup_{id}.conf'.
- format(id=self._opt.get('qemu_id')))
- running = ('/etc/vpp/vm_running_{id}.exec'.
- format(id=self._opt.get('qemu_id')))
+ startup = f"/etc/vpp/vm_startup_{self._opt.get(u'qemu_id')}.conf"
+ running = f"/etc/vpp/vm_running_{self._opt.get(u'qemu_id')}.exec"
- self._temp['startup'] = startup
- self._temp['running'] = running
- self._opt['vnf_bin'] = ('/usr/bin/vpp -c {startup}'.
- format(startup=startup))
+ self._temp[u"startup"] = startup
+ self._temp[u"running"] = running
+ self._opt[u"vnf_bin"] = f"/usr/bin/vpp -c {startup}"
# Create VPP startup configuration.
vpp_config = VppConfigGenerator()
vpp_config.add_unix_cli_listen()
vpp_config.add_unix_exec(running)
vpp_config.add_socksvr()
- vpp_config.add_cpu_main_core('0')
- if self._opt.get('smp') > 1:
- vpp_config.add_cpu_corelist_workers('1-{smp}'.format(
- smp=self._opt.get('smp')-1))
- vpp_config.add_dpdk_dev('0000:00:06.0', '0000:00:07.0')
- vpp_config.add_dpdk_dev_default_rxq(kwargs['queues'])
- vpp_config.add_dpdk_log_level('debug')
- if not kwargs['jumbo_frames']:
+ vpp_config.add_cpu_main_core(u"0")
+ if self._opt.get(u"smp") > 1:
+ vpp_config.add_cpu_corelist_workers(f"1-{self._opt.get(u'smp')-1}")
+ vpp_config.add_dpdk_dev(u"0000:00:06.0", u"0000:00:07.0")
+ vpp_config.add_dpdk_dev_default_rxq(kwargs[u"queues"])
+ vpp_config.add_dpdk_log_level(u"debug")
+ if not kwargs[u"jumbo_frames"]:
vpp_config.add_dpdk_no_multi_seg()
vpp_config.add_dpdk_no_tx_checksum_offload()
- vpp_config.add_plugin('disable', 'default')
- vpp_config.add_plugin('enable', 'dpdk_plugin.so')
+ vpp_config.add_plugin(u"disable", [u"default"])
+ vpp_config.add_plugin(u"enable", [u"dpdk_plugin.so"])
vpp_config.write_config(startup)
# Create VPP running configuration.
- template = '{res}/{tpl}.exec'.format(res=Constants.RESOURCES_TPL_VM,
- tpl=self._opt.get('vnf'))
- exec_cmd_no_error(self._node, 'rm -f {running}'.format(running=running),
- sudo=True)
+ template = f"{Constants.RESOURCES_TPL_VM}/{self._opt.get(u'vnf')}.exec"
+ exec_cmd_no_error(self._node, f"rm -f {running}", sudo=True)
- with open(template, 'r') as src_file:
+ with open(template, "r") as src_file:
src = Template(src_file.read())
exec_cmd_no_error(
- self._node, "echo '{out}' | sudo tee {running}".format(
- out=src.safe_substitute(**kwargs), running=running))
+ self._node, f"echo '{src.safe_substitute(**kwargs)}' | "
+ f"sudo tee {running}"
+ )
def create_kernelvm_config_testpmd_io(self, **kwargs):
"""Create QEMU testpmd-io command line.
:type kwargs: dict
"""
testpmd_cmd = DpdkUtil.get_testpmd_cmdline(
- eal_corelist='0-{smp}'.format(smp=self._opt.get('smp') - 1),
+ eal_corelist=f"0-{self._opt.get(u'smp') - 1}",
eal_driver=False,
eal_in_memory=True,
pmd_num_mbufs=16384,
- pmd_rxq=kwargs['queues'],
- pmd_txq=kwargs['queues'],
+ pmd_rxq=kwargs[u"queues"],
+ pmd_txq=kwargs[u"queues"],
pmd_tx_offloads='0x0',
pmd_disable_hw_vlan=False,
- pmd_nb_cores=str(self._opt.get('smp') - 1))
+ pmd_nb_cores=str(self._opt.get(u"smp") - 1)
+ )
- self._opt['vnf_bin'] = ('{testpmd_path}/{testpmd_cmd}'.
- format(testpmd_path=self._testpmd_path,
- testpmd_cmd=testpmd_cmd))
+ self._opt[u"vnf_bin"] = f"{self._testpmd_path}/{testpmd_cmd}"
def create_kernelvm_config_testpmd_mac(self, **kwargs):
"""Create QEMU testpmd-mac command line.
:type kwargs: dict
"""
testpmd_cmd = DpdkUtil.get_testpmd_cmdline(
- eal_corelist='0-{smp}'.format(smp=self._opt.get('smp') - 1),
+ eal_corelist=f"0-{self._opt.get(u'smp') - 1}",
eal_driver=False,
eal_in_memory=True,
pmd_num_mbufs=16384,
- pmd_fwd_mode='mac',
- pmd_eth_peer_0='0,{mac}'.format(mac=kwargs['vif1_mac']),
- pmd_eth_peer_1='1,{mac}'.format(mac=kwargs['vif2_mac']),
- pmd_rxq=kwargs['queues'],
- pmd_txq=kwargs['queues'],
- pmd_tx_offloads='0x0',
+ pmd_fwd_mode=u"mac",
+ pmd_eth_peer_0=f"0,{kwargs[u'vif1_mac']}",
+ pmd_eth_peer_1=f"1,{kwargs[u'vif2_mac']}",
+ pmd_rxq=kwargs[u"queues"],
+ pmd_txq=kwargs[u"queues"],
+ pmd_tx_offloads=u"0x0",
pmd_disable_hw_vlan=False,
- pmd_nb_cores=str(self._opt.get('smp') - 1))
+ pmd_nb_cores=str(self._opt.get(u"smp") - 1)
+ )
- self._opt['vnf_bin'] = ('{testpmd_path}/{testpmd_cmd}'.
- format(testpmd_path=self._testpmd_path,
- testpmd_cmd=testpmd_cmd))
+ self._opt[u"vnf_bin"] = f"{self._testpmd_path}/{testpmd_cmd}"
def create_kernelvm_init(self, **kwargs):
"""Create QEMU init script.
:param kwargs: Key-value pairs to replace content of init startup file.
:type kwargs: dict
"""
- template = '{res}/init.sh'.format(res=Constants.RESOURCES_TPL_VM)
- init = self._temp.get('ini')
- exec_cmd_no_error(
- self._node, 'rm -f {init}'.format(init=init), sudo=True)
+ template = f"{Constants.RESOURCES_TPL_VM}/init.sh"
+ init = self._temp.get(u"ini")
+ exec_cmd_no_error(self._node, f"rm -f {init}", sudo=True)
- with open(template, 'r') as src_file:
+ with open(template, "r") as src_file:
src = Template(src_file.read())
exec_cmd_no_error(
- self._node, "echo '{out}' | sudo tee {init}".format(
- out=src.safe_substitute(**kwargs), init=init))
- exec_cmd_no_error(
- self._node, "chmod +x {init}".format(init=init), sudo=True)
+ self._node, f"echo '{src.safe_substitute(**kwargs)}' | "
+ f"sudo tee {init}"
+ )
+ exec_cmd_no_error(self._node, f"chmod +x {init}", sudo=True)
def configure_kernelvm_vnf(self, **kwargs):
"""Create KernelVM VNF configurations.
:param kwargs: Key-value pairs for templating configs.
:type kwargs: dict
"""
- if 'vpp' in self._opt.get('vnf'):
+ if u"vpp" in self._opt.get(u"vnf"):
self.create_kernelvm_config_vpp(**kwargs)
- elif 'testpmd_io' in self._opt.get('vnf'):
+ elif u"testpmd_io" in self._opt.get(u"vnf"):
self.create_kernelvm_config_testpmd_io(**kwargs)
- elif 'testpmd_mac' in self._opt.get('vnf'):
+ elif u"testpmd_mac" in self._opt.get(u"vnf"):
self.create_kernelvm_config_testpmd_mac(**kwargs)
else:
- raise RuntimeError('QEMU: Unsupported VNF!')
- self.create_kernelvm_init(vnf_bin=self._opt['vnf_bin'])
+ raise RuntimeError(u"QEMU: Unsupported VNF!")
+ self.create_kernelvm_init(vnf_bin=self._opt[u"vnf_bin"])
def get_qemu_pids(self):
"""Get QEMU CPU pids.
:returns: List of QEMU CPU pids.
:rtype: list of str
"""
- command = ("grep -rwl 'CPU' /proc/$(sudo cat {pidfile})/task/*/comm ".
- format(pidfile=self._temp.get('pidfile')))
- command += (r"| xargs dirname | sed -e 's/\/.*\///g' | uniq")
+ command = f"grep -rwl 'CPU' /proc/$(sudo cat " \
+ f"{self._temp.get(u'pidfile')})/task/*/comm "
+ command += r"| xargs dirname | sed -e 's/\/.*\///g' | uniq"
stdout, _ = exec_cmd_no_error(self._node, command)
return stdout.splitlines()
sleep(1)
continue
for qemu_cpu, host_cpu in zip(qemu_cpus, host_cpus):
- command = ('taskset -pc {host_cpu} {thread}'.
- format(host_cpu=host_cpu, thread=qemu_cpu))
- message = ('QEMU: Set affinity failed on {host}!'.
- format(host=self._node['host']))
- exec_cmd_no_error(self._node, command, sudo=True,
- message=message)
+ command = f"taskset -pc {host_cpu} {qemu_cpu}"
+ message = f"QEMU: Set affinity failed " \
+ f"on {self._node[u'host']}!"
+ exec_cmd_no_error(
+ self._node, command, sudo=True, message=message
+ )
break
except (RuntimeError, ValueError):
self.qemu_kill_all()
raise
else:
self.qemu_kill_all()
- raise RuntimeError('Failed to set Qemu threads affinity!')
+ raise RuntimeError(u"Failed to set Qemu threads affinity!")
def qemu_set_scheduler_policy(self):
"""Set scheduler policy to SCHED_RR with priority 1 for all Qemu CPU
qemu_cpus = self.get_qemu_pids()
for qemu_cpu in qemu_cpus:
- command = ('chrt -r -p 1 {thread}'.
- format(thread=qemu_cpu))
- message = ('QEMU: Set SCHED_RR failed on {host}'.
- format(host=self._node['host']))
- exec_cmd_no_error(self._node, command, sudo=True,
- message=message)
+ command = f"chrt -r -p 1 {qemu_cpu}"
+ message = f"QEMU: Set SCHED_RR failed on {self._node[u'host']}"
+ exec_cmd_no_error(
+ self._node, command, sudo=True, message=message
+ )
except (RuntimeError, ValueError):
self.qemu_kill_all()
raise
- def qemu_add_vhost_user_if(self, socket, server=True, jumbo_frames=False,
- queue_size=None, queues=1):
+ def qemu_add_vhost_user_if(
+ self, socket, server=True, jumbo_frames=False, queue_size=None,
+ queues=1):
"""Add Vhost-user interface.
:param socket: Path of the unix socket.
"""
self._vhost_id += 1
self._params.add_with_value(
- 'chardev', 'socket,id=char{vhost},path={socket}{server}'.format(
- vhost=self._vhost_id, socket=socket,
- server=',server' if server is True else ''))
+ u"chardev", f"socket,id=char{self._vhost_id},"
+ f"path={socket}{u',server' if server is True else u''}"
+ )
self._params.add_with_value(
- 'netdev', 'vhost-user,id=vhost{vhost},chardev=char{vhost},'
- 'queues={queues}'.format(vhost=self._vhost_id, queues=queues))
- mac = ('52:54:00:00:{qemu:02x}:{vhost:02x}'.
- format(qemu=self._opt.get('qemu_id'), vhost=self._vhost_id))
- queue_size = ('rx_queue_size={queue_size},tx_queue_size={queue_size}'.
- format(queue_size=queue_size)) if queue_size else ''
- mbuf = 'on,host_mtu=9200'
+ u"netdev", f"vhost-user,id=vhost{self._vhost_id},"
+ f"chardev=char{self._vhost_id},queues={queues}"
+ )
+ mac = f"52:54:00:00:{self._opt.get(u'qemu_id'):02x}:" \
+ f"{self._vhost_id:02x}"
+ queue_size = f"rx_queue_size={queue_size},tx_queue_size={queue_size}" \
+ if queue_size else u""
+ mbuf = u"on,host_mtu=9200"
self._params.add_with_value(
- 'device', 'virtio-net-pci,netdev=vhost{vhost},mac={mac},'
- 'addr={addr}.0,mq=on,vectors={vectors},csum=off,gso=off,'
- 'guest_tso4=off,guest_tso6=off,guest_ecn=off,mrg_rxbuf={mbuf},'
- '{queue_size}'.format(
- addr=self._vhost_id+5, vhost=self._vhost_id, mac=mac,
- mbuf=mbuf if jumbo_frames else 'off', queue_size=queue_size,
- vectors=(2 * queues + 2)))
+ u"device", f"virtio-net-pci,netdev=vhost{self._vhost_id},mac={mac},"
+ f"addr={self._vhost_id+5}.0,mq=on,vectors={2 * queues + 2},"
+ f"csum=off,gso=off,guest_tso4=off,guest_tso6=off,guest_ecn=off,"
+ f"mrg_rxbuf={mbuf if jumbo_frames else u'off'},{queue_size}"
+ )
# Add interface MAC and socket to the node dict.
- if_data = {'mac_address': mac, 'socket': socket}
- if_name = 'vhost{vhost}'.format(vhost=self._vhost_id)
- self._vm_info['interfaces'][if_name] = if_data
+ if_data = {u"mac_address": mac, u"socket": socket}
+ if_name = f"vhost{self._vhost_id}"
+ self._vm_info[u"interfaces"][if_name] = if_data
# Add socket to temporary file list.
self._temp[if_name] = socket
response will contain the "error" keyword instead of "return".
"""
# To enter command mode, the qmp_capabilities command must be issued.
- command = ('echo "{{ \\"execute\\": \\"qmp_capabilities\\" }}'
- '{{ \\"execute\\": \\"{cmd}\\" }}" | '
- 'sudo -S socat - UNIX-CONNECT:{qmp}'.
- format(cmd=cmd, qmp=self._temp.get('qmp')))
- message = ('QMP execute "{cmd}" failed on {host}'.
- format(cmd=cmd, host=self._node['host']))
+ command = f"echo \"{{{{ \\\"execute\\\": " \
+ f"\\\"qmp_capabilities\\\" }}}}" \
+ f"{{{{ \\\"execute\\\": \\\"{cmd}\\\" }}}}\" | " \
+ f"sudo -S socat - UNIX-CONNECT:{self._temp.get(u'qmp')}"
+ message = f"QMP execute '{cmd}' failed on {self._node[u'host']}"
+
stdout, _ = exec_cmd_no_error(
- self._node, command, sudo=False, message=message)
+ self._node, command, sudo=False, message=message
+ )
# Skip capabilities negotiation messages.
out_list = stdout.splitlines()
if len(out_list) < 3:
- raise RuntimeError(
- 'Invalid QMP output on {host}'.format(host=self._node['host']))
+ raise RuntimeError(f"Invalid QMP output on {self._node[u'host']}")
return json.loads(out_list[2])
def _qemu_qga_flush(self):
"""Flush the QGA parser state."""
- command = ('(printf "\xFF"; sleep 1) | '
- 'sudo -S socat - UNIX-CONNECT:{qga}'.
- format(qga=self._temp.get('qga')))
- message = ('QGA flush failed on {host}'.format(host=self._node['host']))
+ command = f"(printf \"\xFF\"; sleep 1) | sudo -S socat " \
+ f"- UNIX-CONNECT:{self._temp.get(u'qga')}"
+ message = f"QGA flush failed on {self._node[u'host']}"
stdout, _ = exec_cmd_no_error(
- self._node, command, sudo=False, message=message)
+ self._node, command, sudo=False, message=message
+ )
- return json.loads(stdout.split('\n', 1)[0]) if stdout else dict()
+ return json.loads(stdout.split(u"\n", 1)[0]) if stdout else dict()
def _qemu_qga_exec(self, cmd):
"""Execute QGA command.
:param cmd: QGA command to execute.
:type cmd: str
"""
- command = ('(echo "{{ \\"execute\\": \\"{cmd}\\" }}"; sleep 1) | '
- 'sudo -S socat - UNIX-CONNECT:{qga}'.
- format(cmd=cmd, qga=self._temp.get('qga')))
- message = ('QGA execute "{cmd}" failed on {host}'.
- format(cmd=cmd, host=self._node['host']))
+ command = f"(echo \"{{{{ \\\"execute\\\": " \
+ f"\\\"{cmd}\\\" }}}}\"; sleep 1) | " \
+ f"sudo -S socat - UNIX-CONNECT:{self._temp.get(u'qga')}"
+ message = f"QGA execute '{cmd}' failed on {self._node[u'host']}"
stdout, _ = exec_cmd_no_error(
- self._node, command, sudo=False, message=message)
+ self._node, command, sudo=False, message=message
+ )
- return json.loads(stdout.split('\n', 1)[0]) if stdout else dict()
+ return json.loads(stdout.split(u"\n", 1)[0]) if stdout else dict()
def _wait_until_vm_boot(self):
"""Wait until QEMU with NestedVM is booted."""
- if self._opt.get('vm_type') == 'nestedvm':
+ if self._opt.get(u"vm_type") == u"nestedvm":
self._wait_until_nestedvm_boot()
self._update_vm_interfaces()
- elif self._opt.get('vm_type') == 'kernelvm':
+ elif self._opt.get(u"vm_type") == u"kernelvm":
self._wait_until_kernelvm_boot()
else:
- raise RuntimeError('QEMU: Unsupported VM type!')
+ raise RuntimeError(u"QEMU: Unsupported VM type!")
def _wait_until_nestedvm_boot(self, retries=12):
"""Wait until QEMU with NestedVM is booted.
try:
out = self._qemu_qga_flush()
except ValueError:
- logger.trace('QGA qga flush unexpected output {out}'.
- format(out=out))
+ logger.trace(f"QGA qga flush unexpected output {out}")
# Empty output - VM not booted yet
if not out:
sleep(5)
else:
break
else:
- raise RuntimeError('QEMU: Timeout, VM not booted on {host}!'.
- format(host=self._node['host']))
+ raise RuntimeError(
+ f"QEMU: Timeout, VM not booted on {self._node[u'host']}!"
+ )
for _ in range(retries):
out = None
try:
- out = self._qemu_qga_exec('guest-ping')
+ out = self._qemu_qga_exec(u"guest-ping")
except ValueError:
- logger.trace('QGA guest-ping unexpected output {out}'.
- format(out=out))
+ logger.trace(f"QGA guest-ping unexpected output {out}")
# Empty output - VM not booted yet.
if not out:
sleep(5)
# Non-error return - VM booted.
- elif out.get('return') is not None:
+ elif out.get(u"return") is not None:
break
# Skip error and wait.
- elif out.get('error') is not None:
+ elif out.get(u"error") is not None:
sleep(5)
else:
# If there is an unexpected output from QGA guest-info, try
# again until timeout.
- logger.trace('QGA guest-ping unexpected output {out}'.
- format(out=out))
+ logger.trace(f"QGA guest-ping unexpected output {out}")
else:
- raise RuntimeError('QEMU: Timeout, VM not booted on {host}!'.
- format(host=self._node['host']))
+ raise RuntimeError(
+ f"QEMU: Timeout, VM not booted on {self._node[u'host']}!"
+ )
def _wait_until_kernelvm_boot(self, retries=60):
"""Wait until QEMU KernelVM is booted.
vpp_ver = VPPUtil.vpp_show_version(self._node)
for _ in range(retries):
- command = ('tail -1 {log}'.format(log=self._temp.get('log')))
+ command = f"tail -1 {self._temp.get(u'log')}"
stdout = None
try:
stdout, _ = exec_cmd_no_error(self._node, command, sudo=True)
sleep(1)
except RuntimeError:
pass
- if vpp_ver in stdout or 'Press enter to exit' in stdout:
+ if vpp_ver in stdout or u"Press enter to exit" in stdout:
break
- if 'reboot: Power down' in stdout:
- raise RuntimeError('QEMU: NF failed to run on {host}!'.
- format(host=self._node['host']))
+ if u"reboot: Power down" in stdout:
+ raise RuntimeError(
+ f"QEMU: NF failed to run on {self._node[u'host']}!"
+ )
else:
- raise RuntimeError('QEMU: Timeout, VM not booted on {host}!'.
- format(host=self._node['host']))
+ raise RuntimeError(
+ f"QEMU: Timeout, VM not booted on {self._node[u'host']}!"
+ )
def _update_vm_interfaces(self):
"""Update interface names in VM node dict."""
# Send guest-network-get-interfaces command via QGA, output example:
# {"return": [{"name": "eth0", "hardware-address": "52:54:00:00:04:01"},
# {"name": "eth1", "hardware-address": "52:54:00:00:04:02"}]}.
- out = self._qemu_qga_exec('guest-network-get-interfaces')
- interfaces = out.get('return')
+ out = self._qemu_qga_exec(u"guest-network-get-interfaces")
+ interfaces = out.get(u"return")
mac_name = {}
if not interfaces:
- raise RuntimeError('Get VM interface list failed on {host}'.
- format(host=self._node['host']))
+ raise RuntimeError(
+ f"Get VM interface list failed on {self._node[u'host']}"
+ )
# Create MAC-name dict.
for interface in interfaces:
- if 'hardware-address' not in interface:
+ if u"hardware-address" not in interface:
continue
- mac_name[interface['hardware-address']] = interface['name']
+ mac_name[interface[u"hardware-address"]] = interface[u"name"]
# Match interface by MAC and save interface name.
- for interface in self._vm_info['interfaces'].values():
- mac = interface.get('mac_address')
+ for interface in self._vm_info[u"interfaces"].values():
+ mac = interface.get(u"mac_address")
if_name = mac_name.get(mac)
if if_name is None:
- logger.trace(
- 'Interface name for MAC {mac} not found'.format(mac=mac))
+ logger.trace(f"Interface name for MAC {mac} not found")
else:
- interface['name'] = if_name
+ interface[u"name"] = if_name
def qemu_start(self):
"""Start QEMU and wait until VM boot.
:rtype: dict
"""
cmd_opts = OptionString()
- cmd_opts.add('{bin_path}/qemu-system-{arch}'.format(
- bin_path=Constants.QEMU_BIN_PATH, arch=self._arch))
+ cmd_opts.add(f"{Constants.QEMU_BIN_PATH}/qemu-system-{self._arch}")
cmd_opts.extend(self._params)
- message = ('QEMU: Start failed on {host}!'.
- format(host=self._node['host']))
+ message = f"QEMU: Start failed on {self._node[u'host']}!"
try:
DUTSetup.check_huge_page(
- self._node, '/dev/hugepages', self._opt.get('mem'))
+ self._node, u"/dev/hugepages", self._opt.get(u"mem"))
exec_cmd_no_error(
- self._node, cmd_opts, timeout=300, sudo=True, message=message)
+ self._node, cmd_opts, timeout=300, sudo=True, message=message
+ )
self._wait_until_vm_boot()
except RuntimeError:
self.qemu_kill_all()
def qemu_kill(self):
"""Kill qemu process."""
- exec_cmd(self._node, 'chmod +r {pidfile}'.
- format(pidfile=self._temp.get('pidfile')), sudo=True)
- exec_cmd(self._node, 'kill -SIGKILL $(cat {pidfile})'.
- format(pidfile=self._temp.get('pidfile')), sudo=True)
+ exec_cmd(
+ self._node, f"chmod +r {self._temp.get(u'pidfile')}", sudo=True
+ )
+ exec_cmd(
+ self._node, f"kill -SIGKILL $(cat {self._temp.get(u'pidfile')})",
+ sudo=True
+ )
for value in self._temp.values():
- exec_cmd(self._node, 'cat {value}'.format(value=value), sudo=True)
- exec_cmd(self._node, 'rm -f {value}'.format(value=value), sudo=True)
+ exec_cmd(self._node, f"cat {value}", sudo=True)
+ exec_cmd(self._node, f"rm -f {value}", sudo=True)
def qemu_kill_all(self):
"""Kill all qemu processes on DUT node if specified."""
- exec_cmd(self._node, 'pkill -SIGKILL qemu', sudo=True)
+ exec_cmd(self._node, u"pkill -SIGKILL qemu", sudo=True)
for value in self._temp.values():
- exec_cmd(self._node, 'cat {value}'.format(value=value), sudo=True)
- exec_cmd(self._node, 'rm -f {value}'.format(value=value), sudo=True)
+ exec_cmd(self._node, f"cat {value}", sudo=True)
+ exec_cmd(self._node, f"rm -f {value}", sudo=True)
def qemu_version(self):
"""Return Qemu version.
:returns: Qemu version.
:rtype: str
"""
- command = ('{bin_path}/qemu-system-{arch} --version'.format(
- bin_path=Constants.QEMU_BIN_PATH,
- arch=self._arch))
+ command = f"{Constants.QEMU_BIN_PATH}/qemu-system-{self._arch} " \
+ f"--version"
try:
stdout, _ = exec_cmd_no_error(self._node, command, sudo=True)
- return match(r'QEMU emulator version ([\d.]*)', stdout).group(1)
+ return match(r"QEMU emulator version ([\d.]*)", stdout).group(1)
except RuntimeError:
self.qemu_kill_all()
raise
Code Review / csit.git / blobdiff