mbuf_opt = "--mbuf-factor " + str(generator_config.mbuf_factor)
else:
mbuf_opt = ""
+ # --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)
subprocess.Popen(['nohup', '/bin/bash', '-c',
- './t-rex-64 -i -c {} --iom 0 --no-scapy-server --close-at-end {} '
+ './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,
mbuf_opt, cfg)],
cwd=self.trex_dir)
LOG.info('TRex server is running...')
+ def __load_config(self, filename):
+ result = {}
+ if os.path.exists(filename):
+ with open(filename, 'r') as stream:
+ try:
+ result = yaml.load(stream)
+ except yaml.YAMLError as exc:
+ print exc
+ return result
+
def __save_config(self, generator_config, filename):
- ifs = ",".join([repr(pci) for pci in generator_config.pcis])
+ 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
else:
LOG.info("Generator profile 'platform' sub-properties are set but not filled in \
config file. TRex will use default values.")
+ return result
- yaml.safe_load(result)
- if os.path.exists(filename):
- os.remove(filename)
- with open(filename, 'w') as f:
- f.write(result)
-
- return filename
+ 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