def test__dpdk_execute_failure(self): conn = mock.Mock() conn.execute = mock.Mock(return_value=(1, 'output', 'error')) conn.provision_tool = mock.Mock(return_value='tool_path') dpdk_bind_helper = DpdkBindHelper(conn) with self.assertRaises(DpdkBindHelperException): dpdk_bind_helper._dpdk_execute('command')
def __init__(self, vnfd_helper, ssh_helper, scenario_helper): super(DpdkVnfSetupEnvHelper, self).__init__(vnfd_helper, ssh_helper, scenario_helper) self.all_ports = None self.bound_pci = None self.socket = None self.used_drivers = None self.dpdk_bind_helper = DpdkBindHelper(ssh_helper)
def test__dpdk_execute(self): conn = mock.Mock() conn.execute = mock.Mock(return_value=(0, 'output', 'error')) conn.provision_tool = mock.Mock(return_value='tool_path') dpdk_bind_helper = DpdkBindHelper(conn) self.assertEquals((0, 'output', 'error'), dpdk_bind_helper._dpdk_execute('command'))
def test_read_status(self): conn = mock.Mock() conn.execute = mock.Mock(return_value=(0, self.EXAMPLE_OUTPUT, '')) conn.provision_tool = mock.Mock(return_value='path_to_tool') dpdk_bind_helper = DpdkBindHelper(conn) self.assertEquals(self.PARSED_EXAMPLE, dpdk_bind_helper.read_status())
def test_parse_dpdk_status_output(self): conn = mock.Mock() dpdk_bind_helper = DpdkBindHelper(conn) dpdk_bind_helper.parse_dpdk_status_output(self.EXAMPLE_OUTPUT) self.maxDiff = None self.assertEquals(self.PARSED_EXAMPLE, dpdk_bind_helper.dpdk_status)
def test__addline(self): conn = mock.Mock() dpdk_bind_helper = DpdkBindHelper(conn) dpdk_bind_helper._addline(NETWORK_KERNEL, self.ONE_INPUT_LINE) self.assertIsNotNone(dpdk_bind_helper.dpdk_status) self.assertEquals(self.ONE_INPUT_LINE_PARSED, dpdk_bind_helper.dpdk_status[NETWORK_KERNEL])
def test_interface_driver_map(self): conn = mock.Mock() dpdk_bind_helper = DpdkBindHelper(conn) dpdk_bind_helper.parse_dpdk_status_output(self.EXAMPLE_OUTPUT) self.assertEquals( { '0000:00:04.0': 'igb_uio', '0000:00:03.0': 'virtio-pci', '0000:00:05.0': 'igb_uio', }, dpdk_bind_helper.interface_driver_map)
def test_save_used_drivers(self): conn = mock.Mock() dpdk_bind_helper = DpdkBindHelper(conn) dpdk_bind_helper.dpdk_status = self.PARSED_EXAMPLE dpdk_bind_helper.save_used_drivers() expected = { '0000:00:04.0': 'igb_uio', '0000:00:05.0': 'igb_uio', '0000:00:03.0': 'virtio-pci', } self.assertEqual(expected, dpdk_bind_helper.used_drivers)
def test_bind(self): conn = mock.Mock() conn.execute = mock.Mock(return_value=(0, '', '')) conn.provision_tool = mock.Mock( return_value='/opt/nsb_bin/dpdk_nic_bind.py') dpdk_bind_helper = DpdkBindHelper(conn) dpdk_bind_helper.read_status = mock.Mock() dpdk_bind_helper.bind(['0000:00:03.0', '0000:00:04.0'], 'my_driver') conn.execute.assert_called_with( 'sudo /opt/nsb_bin/dpdk_nic_bind.py --force ' '-b my_driver 0000:00:03.0 0000:00:04.0') dpdk_bind_helper.read_status.assert_called_once()
def test___init__(self): conn = mock.Mock() conn.provision_tool = mock.Mock(return_value='path_to_tool') dpdk_bind_helper = DpdkBindHelper(conn) self.assertEquals(conn, dpdk_bind_helper.ssh_helper) self.assertEquals(self.CLEAN_STATUS, dpdk_bind_helper.dpdk_status) self.assertIsNone(dpdk_bind_helper.status_nic_row_re) self.assertIsNone(dpdk_bind_helper._dpdk_nic_bind_attr) self.assertIsNone(dpdk_bind_helper._status_cmd_attr)
def test__get_bound_pci_addresses(self): conn = mock.Mock() dpdk_bind_helper = DpdkBindHelper(conn) dpdk_bind_helper.parse_dpdk_status_output(self.EXAMPLE_OUTPUT) self.assertEquals( ['0000:00:04.0', '0000:00:05.0'], dpdk_bind_helper._get_bound_pci_addresses(NETWORK_DPDK)) self.assertEquals( ['0000:00:03.0'], dpdk_bind_helper._get_bound_pci_addresses(NETWORK_KERNEL))
def test_rebind_drivers(self): conn = mock.Mock() dpdk_bind_helper = DpdkBindHelper(conn) dpdk_bind_helper.bind = mock.Mock() dpdk_bind_helper.used_drivers = { '0000:05:00.0': 'd1', '0000:05:01.0': 'd3', } dpdk_bind_helper.rebind_drivers() dpdk_bind_helper.bind.assert_any_call('0000:05:00.0', 'd1', True) dpdk_bind_helper.bind.assert_any_call('0000:05:01.0', 'd3', True)
class DpdkVnfSetupEnvHelper(SetupEnvHelper): APP_NAME = 'DpdkVnf' FIND_NET_CMD = "find /sys/class/net -lname '*{}*' -printf '%f'" HW_DEFAULT_CORE = 3 SW_DEFAULT_CORE = 2 @staticmethod def _update_packet_type(ip_pipeline_cfg, traffic_options): match_str = 'pkt_type = ipv4' replace_str = 'pkt_type = {0}'.format(traffic_options['pkt_type']) pipeline_config_str = ip_pipeline_cfg.replace(match_str, replace_str) return pipeline_config_str @classmethod def _update_traffic_type(cls, ip_pipeline_cfg, traffic_options): traffic_type = traffic_options['traffic_type'] if traffic_options['vnf_type'] is not cls.APP_NAME: match_str = 'traffic_type = 4' replace_str = 'traffic_type = {0}'.format(traffic_type) elif traffic_type == 4: match_str = 'pkt_type = ipv4' replace_str = 'pkt_type = ipv4' else: match_str = 'pkt_type = ipv4' replace_str = 'pkt_type = ipv6' pipeline_config_str = ip_pipeline_cfg.replace(match_str, replace_str) return pipeline_config_str def __init__(self, vnfd_helper, ssh_helper, scenario_helper): super(DpdkVnfSetupEnvHelper, self).__init__(vnfd_helper, ssh_helper, scenario_helper) self.all_ports = None self.bound_pci = None self.socket = None self.used_drivers = None self.dpdk_bind_helper = DpdkBindHelper(ssh_helper) def _setup_hugepages(self): cmd = "awk '/Hugepagesize/ { print $2$3 }' < /proc/meminfo" hugepages = self.ssh_helper.execute(cmd)[1].rstrip() memory_path = \ '/sys/kernel/mm/hugepages/hugepages-%s/nr_hugepages' % hugepages self.ssh_helper.execute("awk -F: '{ print $1 }' < %s" % memory_path) if hugepages == "2048kB": pages = 8192 else: pages = 16 self.ssh_helper.execute("echo %s | sudo tee %s" % (pages, memory_path)) def build_config(self): vnf_cfg = self.scenario_helper.vnf_cfg task_path = self.scenario_helper.task_path lb_count = vnf_cfg.get('lb_count', 3) lb_config = vnf_cfg.get('lb_config', 'SW') worker_config = vnf_cfg.get('worker_config', '1C/1T') worker_threads = vnf_cfg.get('worker_threads', 3) traffic_type = self.scenario_helper.all_options.get('traffic_type', 4) traffic_options = { 'traffic_type': traffic_type, 'pkt_type': 'ipv%s' % traffic_type, 'vnf_type': self.VNF_TYPE, } config_tpl_cfg = find_relative_file(self.DEFAULT_CONFIG_TPL_CFG, task_path) config_basename = posixpath.basename(self.CFG_CONFIG) script_basename = posixpath.basename(self.CFG_SCRIPT) multiport = MultiPortConfig(self.scenario_helper.topology, config_tpl_cfg, config_basename, self.vnfd_helper, self.VNF_TYPE, lb_count, worker_threads, worker_config, lb_config, self.socket) multiport.generate_config() with open(self.CFG_CONFIG) as handle: new_config = handle.read() new_config = self._update_traffic_type(new_config, traffic_options) new_config = self._update_packet_type(new_config, traffic_options) self.ssh_helper.upload_config_file(config_basename, new_config) self.ssh_helper.upload_config_file(script_basename, multiport.generate_script(self.vnfd_helper)) LOG.info("Provision and start the %s", self.APP_NAME) self._build_pipeline_kwargs() return self.PIPELINE_COMMAND.format(**self.pipeline_kwargs) def _build_pipeline_kwargs(self): tool_path = self.ssh_helper.provision_tool(tool_file=self.APP_NAME) # count the number of actual ports in the list of pairs # remove duplicate ports # this is really a mapping from LINK ID to DPDK PMD ID # e.g. 0x110 maps LINK0 -> PMD_ID_1, LINK1 -> PMD_ID_2 # 0x1010 maps LINK0 -> PMD_ID_1, LINK1 -> PMD_ID_3 ports = self.vnfd_helper.port_pairs.all_ports port_nums = self.vnfd_helper.port_nums(ports) # create mask from all the dpdk port numbers ports_mask_hex = hex(sum(2 ** num for num in port_nums)) self.pipeline_kwargs = { 'cfg_file': self.CFG_CONFIG, 'script': self.CFG_SCRIPT, 'port_mask_hex': ports_mask_hex, 'tool_path': tool_path, } def _get_app_cpu(self): if self.CORES: return self.CORES vnf_cfg = self.scenario_helper.vnf_cfg sys_obj = CpuSysCores(self.ssh_helper) self.sys_cpu = sys_obj.get_core_socket() num_core = int(vnf_cfg["worker_threads"]) if vnf_cfg.get("lb_config", "SW") == 'HW': num_core += self.HW_DEFAULT_CORE else: num_core += self.SW_DEFAULT_CORE app_cpu = self.sys_cpu[str(self.socket)][:num_core] return app_cpu def _get_cpu_sibling_list(self, cores=None): if cores is None: cores = self._get_app_cpu() sys_cmd_template = "%s/cpu%s/topology/thread_siblings_list" awk_template = "awk -F: '{ print $1 }' < %s" sys_path = "/sys/devices/system/cpu/" cpu_topology = [] try: for core in cores: sys_cmd = sys_cmd_template % (sys_path, core) cpu_id = self.ssh_helper.execute(awk_template % sys_cmd)[1] cpu_topology.extend(cpu.strip() for cpu in cpu_id.split(',')) return cpu_topology except Exception: return [] def _validate_cpu_cfg(self): return self._get_cpu_sibling_list() def setup_vnf_environment(self): self._setup_dpdk() self.bound_pci = [v['virtual-interface']["vpci"] for v in self.vnfd_helper.interfaces] self.kill_vnf() # bind before _setup_resources so we can use dpdk_port_num self._detect_and_bind_drivers() resource = self._setup_resources() return resource def kill_vnf(self): # have to use exact match self.ssh_helper.execute("sudo pkill -x %s" % self.APP_NAME) def _setup_dpdk(self): """ setup dpdk environment needed for vnf to run """ self._setup_hugepages() self.ssh_helper.execute("sudo modprobe uio && sudo modprobe igb_uio") exit_status = self.ssh_helper.execute("lsmod | grep -i igb_uio")[0] if exit_status == 0: return dpdk = self.ssh_helper.join_bin_path(DPDK_VERSION) dpdk_setup = self.ssh_helper.provision_tool(tool_file="nsb_setup.sh") exit_status = self.ssh_helper.execute("which {} >/dev/null 2>&1".format(dpdk))[0] if exit_status != 0: self.ssh_helper.execute("bash %s dpdk >/dev/null 2>&1" % dpdk_setup) def get_collectd_options(self): options = self.scenario_helper.all_options.get("collectd", {}) # override with specific node settings options.update(self.scenario_helper.options.get("collectd", {})) return options def _setup_resources(self): # what is this magic? how do we know which socket is for which port? # what about quad-socket? if any(v[5] == "0" for v in self.bound_pci): self.socket = 0 else: self.socket = 1 cores = self._validate_cpu_cfg() # implicit ordering, presumably by DPDK port num, so pre-sort by port_num # this won't work because we don't have DPDK port numbers yet ports = sorted(self.vnfd_helper.interfaces, key=self.vnfd_helper.port_num) port_names = (intf["name"] for intf in ports) collectd_options = self.get_collectd_options() plugins = collectd_options.get("plugins", {}) return ResourceProfile(self.vnfd_helper.mgmt_interface, port_names=port_names, cores=cores, plugins=plugins, interval=collectd_options.get("interval")) def _detect_and_bind_drivers(self): interfaces = self.vnfd_helper.interfaces self.dpdk_bind_helper.read_status() self.dpdk_bind_helper.save_used_drivers() self.dpdk_bind_helper.bind(self.bound_pci, 'igb_uio') sorted_dpdk_pci_addresses = sorted(self.dpdk_bind_helper.dpdk_bound_pci_addresses) for dpdk_port_num, vpci in enumerate(sorted_dpdk_pci_addresses): try: intf = next(v for v in interfaces if vpci == v['virtual-interface']['vpci']) # force to int intf['virtual-interface']['dpdk_port_num'] = int(dpdk_port_num) except: pass time.sleep(2) def get_local_iface_name_by_vpci(self, vpci): find_net_cmd = self.FIND_NET_CMD.format(vpci) exit_status, stdout, _ = self.ssh_helper.execute(find_net_cmd) if exit_status == 0: return stdout return None def tear_down(self): self.dpdk_bind_helper.rebind_drivers()
def test__switch_active_dict_by_header_empty(self): line = "<none>" olddict = 'olddict' self.assertEqual(olddict, DpdkBindHelper._switch_active_dict(line, olddict))
def test__switch_active_dict_by_header(self): line = "Crypto devices using DPDK-compatible driver" olddict = 'olddict' self.assertEqual(CRYPTO_DPDK, DpdkBindHelper._switch_active_dict(line, olddict))