import subprocess
import yaml
-from log import LOG
+from .log import LOG
class TrafficServerException(Exception):
assert len(contents) == 1
self.trex_dir = os.path.join(trex_base_dir, contents[0])
- def run_server(self, traffic_profile, vlan_tagging, filename='/etc/trex_cfg.yaml'):
- """
- Runs TRex server for specified traffic profile.
+ def run_server(self, generator_config, filename='/etc/trex_cfg.yaml'):
+ """Run TRex server for specified traffic profile.
:param traffic_profile: traffic profile object based on config file
:param filename: path where to save TRex config file
"""
- cfg = self.__save_config(traffic_profile, filename)
- cores = traffic_profile.cores
- sw_mode = "--software" if traffic_profile.generator_config.software_mode else ""
- vlan_opt = "--vlan" if vlan_tagging else ""
- subprocess.Popen(['nohup', '/bin/bash', '-c',
- './t-rex-64 -i -c {} --iom 0 --no-scapy-server --close-at-end {} '
- '{} --cfg {} &> /tmp/trex.log & disown'.format(cores, sw_mode,
- vlan_opt, cfg)],
- cwd=self.trex_dir)
+ cfg = self.__save_config(generator_config, filename)
+ cores = generator_config.cores
+ vtep_vlan = generator_config.gen_config.get('vtep_vlan')
+ sw_mode = "--software" if generator_config.software_mode else ""
+ vlan_opt = "--vlan" if (generator_config.vlan_tagging or vtep_vlan) else ""
+ if generator_config.mbuf_factor:
+ mbuf_opt = "--mbuf-factor " + str(generator_config.mbuf_factor)
+ else:
+ mbuf_opt = ""
+ hdrh_opt = "--hdrh" if generator_config.hdrh else ""
+ # --unbind-unused-ports: for NIC that have more than 2 ports such as Intel X710
+ # this will instruct trex to unbind all ports that are unused instead of
+ # erroring out with an exception (i40e only)
+ cmd = ['nohup', '/bin/bash', '-c',
+ './t-rex-64 -i -c {} --iom 0 --no-scapy-server '
+ '--unbind-unused-ports --close-at-end {} {} '
+ '{} {} --cfg {} &> /tmp/trex.log & disown'.format(cores, sw_mode,
+ vlan_opt,
+ hdrh_opt,
+ mbuf_opt, cfg)]
+ LOG.info(' '.join(cmd))
+ subprocess.Popen(cmd, cwd=self.trex_dir)
LOG.info('TRex server is running...')
- def __save_config(self, traffic_profile, filename):
- ifs = ",".join([repr(pci) for pci in traffic_profile.pcis])
-
- result = """# Config generated by NFVBench tool
- - port_limit : 2
- version : 2
- interfaces : [{ifs}]""".format(ifs=ifs)
+ def __load_config(self, filename):
+ result = {}
+ if os.path.exists(filename):
+ with open(filename, 'r') as stream:
+ try:
+ result = yaml.safe_load(stream)
+ except yaml.YAMLError as exc:
+ print(exc)
+ return result
+ def __save_config(self, generator_config, filename):
+ result = self.__prepare_config(generator_config)
yaml.safe_load(result)
if os.path.exists(filename):
os.remove(filename)
with open(filename, 'w') as f:
f.write(result)
-
return filename
+
+ def __prepare_config(self, generator_config):
+ ifs = ",".join([repr(pci) for pci in generator_config.pcis])
+ result = """# Config generated by NFVbench
+ - port_limit : 2
+ version : 2
+ zmq_pub_port : {zmq_pub_port}
+ zmq_rpc_port : {zmq_rpc_port}
+ prefix : {prefix}
+ limit_memory : {limit_memory}
+ interfaces : [{ifs}]""".format(zmq_pub_port=generator_config.zmq_pub_port,
+ zmq_rpc_port=generator_config.zmq_rpc_port,
+ prefix=generator_config.name,
+ limit_memory=generator_config.limit_memory,
+ ifs=ifs)
+ if hasattr(generator_config, 'mbuf_64') and generator_config.mbuf_64:
+ result += """
+ memory :
+ mbuf_64 : {mbuf_64}""".format(mbuf_64=generator_config.mbuf_64)
+
+ if self.__check_platform_config(generator_config):
+ try:
+ platform = """
+ platform :
+ master_thread_id : {master_thread_id}
+ latency_thread_id : {latency_thread_id}
+ dual_if:""".format(master_thread_id=generator_config.gen_config.platform.
+ master_thread_id,
+ latency_thread_id=generator_config.gen_config.platform.
+ latency_thread_id)
+ result += platform
+
+ for core in generator_config.gen_config.platform.dual_if:
+ threads = ""
+ try:
+ threads = ",".join([repr(thread) for thread in core.threads])
+ except TypeError:
+ LOG.warning("No threads defined for socket %s", core.socket)
+ core_result = """
+ - socket : {socket}
+ threads : [{threads}]""".format(socket=core.socket, threads=threads)
+ result += core_result
+ except (KeyError, AttributeError):
+ pass
+ return result
+
+ def __check_platform_config(self, generator_config):
+ return hasattr(generator_config.gen_config, 'platform') \
+ and hasattr(generator_config.gen_config.platform, "master_thread_id") \
+ and generator_config.gen_config.platform.master_thread_id is not None \
+ and hasattr(generator_config.gen_config.platform, "latency_thread_id") \
+ and generator_config.gen_config.platform.latency_thread_id is not None
+
+ def check_config_updated(self, generator_config):
+ existing_config = self.__load_config(filename='/etc/trex_cfg.yaml')
+ new_config = yaml.safe_load(self.__prepare_config(generator_config))
+ LOG.debug("Existing config: %s", existing_config)
+ LOG.debug("New config: %s", new_config)
+ if existing_config == new_config:
+ return False
+ return True
Code Review / nfvbench.git / blobdiff