diff options
Diffstat (limited to 'resources/libraries/python/QemuUtils.py')
| -rw-r--r-- | resources/libraries/python/QemuUtils.py | 539 |
1 files changed, 270 insertions, 269 deletions
diff --git a/resources/libraries/python/QemuUtils.py b/resources/libraries/python/QemuUtils.py index 17b5eabdc4..96b4ebdaf4 100644 --- a/resources/libraries/python/QemuUtils.py +++ b/resources/libraries/python/QemuUtils.py @@ -14,31 +14,34 @@ """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. @@ -57,138 +60,143 @@ class QemuUtils(object): 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. @@ -197,15 +205,12 @@ class QemuUtils(object): 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() @@ -214,31 +219,29 @@ class QemuUtils(object): 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. @@ -247,19 +250,18 @@ class QemuUtils(object): :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. @@ -268,22 +270,21 @@ class QemuUtils(object): :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. @@ -291,18 +292,17 @@ class QemuUtils(object): :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. @@ -310,15 +310,15 @@ class QemuUtils(object): :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. @@ -326,9 +326,9 @@ class QemuUtils(object): :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() @@ -349,19 +349,19 @@ class QemuUtils(object): 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 @@ -373,18 +373,18 @@ class QemuUtils(object): 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. @@ -400,30 +400,29 @@ class QemuUtils(object): """ 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 @@ -439,32 +438,32 @@ class QemuUtils(object): 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. @@ -474,25 +473,25 @@ class QemuUtils(object): :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. @@ -508,40 +507,39 @@ class QemuUtils(object): 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. @@ -552,47 +550,49 @@ class QemuUtils(object): 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. @@ -601,17 +601,16 @@ class QemuUtils(object): :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() @@ -620,22 +619,25 @@ class QemuUtils(object): 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. @@ -643,12 +645,11 @@ class QemuUtils(object): :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 |