import bitmath
from netaddr import IPNetwork
# pylint: disable=import-error
-from trex_stl_lib.api import STLError
+from trex.stl.api import Ether
+from trex.stl.api import STLError
+from trex.stl.api import UDP
# pylint: enable=import-error
from log import LOG
class TrafficRunner(object):
"""Serialize various steps required to run traffic."""
- def __init__(self, client, duration_sec, interval_sec=0):
+ def __init__(self, client, duration_sec, interval_sec=0, service_mode=False):
"""Create a traffic runner."""
self.client = client
self.start_time = None
self.duration_sec = duration_sec
self.interval_sec = interval_sec
+ self.service_mode = service_mode
def run(self):
"""Clear stats and instruct the traffic generator to start generating traffic."""
return None
LOG.info('Running traffic generator')
self.client.gen.clear_stats()
+ # Debug use only : new '--service-mode' option available for the NFVBench command line.
+ # A read-only mode TRex console would be able to capture the generated traffic.
+ self.client.gen.set_service_mode(enabled=self.service_mode)
+ LOG.info('Service mode is %sabled', 'en' if self.service_mode else 'dis')
self.client.gen.start_traffic()
self.start_time = time.time()
return self.poll_stats()
self.vnis = vnis
LOG.info("Port %d: VNIs %s", self.port, self.vnis)
+ def set_gw_ip(self, gateway_ip):
+ self.gw_ip_block = IpBlock(gateway_ip,
+ self.generator_config.gateway_ip_addrs_step,
+ self.chain_count)
+
def get_gw_ip(self, chain_index):
"""Retrieve the IP address assigned for the gateway of a given chain."""
return self.gw_ip_block.get_ip(chain_index)
else:
self.cores = gen_config.get('cores', 1)
self.mbuf_factor = config.mbuf_factor
+ self.mbuf_64 = config.mbuf_64
+ self.hdrh = not config.disable_hdrh
if gen_config.intf_speed:
# interface speed is overriden from config
self.intf_speed = bitmath.parse_string(gen_config.intf_speed.replace('ps', '')).bits
else:
# interface speed is discovered/provided by the traffic generator
self.intf_speed = 0
+ self.name = gen_config.name
+ self.zmq_pub_port = gen_config.get('zmq_pub_port', 4500)
+ self.zmq_rpc_port = gen_config.get('zmq_rpc_port', 4501)
+ self.limit_memory = gen_config.get('limit_memory', 1024)
self.software_mode = gen_config.get('software_mode', False)
self.interfaces = gen_config.interfaces
if self.interfaces[0].port != 0 or self.interfaces[1].port != 1:
raise TrafficClientException('Invalid port order/id in generator_profile.interfaces')
-
self.service_chain = config.service_chain
self.service_chain_count = config.service_chain_count
self.flow_count = config.flow_count
self.udp_src_port = gen_config.udp_src_port
self.udp_dst_port = gen_config.udp_dst_port
self.vteps = gen_config.get('vteps')
- self.vnis = gen_config.get('vnis')
self.devices = [Device(port, self) for port in [0, 1]]
# This should normally always be [0, 1]
self.ports = [device.port for device in self.devices]
port_index: the port for which dest macs must be set
dest_macs: a list of dest MACs indexed by chain id
"""
- if len(dest_macs) != self.config.service_chain_count:
+ if len(dest_macs) < self.config.service_chain_count:
raise TrafficClientException('Dest MAC list %s must have %d entries' %
(dest_macs, self.config.service_chain_count))
- self.devices[port_index].set_dest_macs(dest_macs)
+ # only pass the first scc dest MACs
+ self.devices[port_index].set_dest_macs(dest_macs[:self.config.service_chain_count])
LOG.info('Port %d: dst MAC %s', port_index, [str(mac) for mac in dest_macs])
def set_vtep_dest_macs(self, port_index, dest_macs):
self.notifier = notifier
self.interval_collector = None
self.iteration_collector = None
- self.runner = TrafficRunner(self, self.config.duration_sec, self.config.interval_sec)
+ self.runner = TrafficRunner(self, self.config.duration_sec, self.config.interval_sec,
+ self.config.service_mode)
self.config.frame_sizes = self._get_frame_sizes()
self.run_config = {
'l2frame_size': None,
def _get_generator(self):
tool = self.tool.lower()
if tool == 'trex':
- from traffic_gen import trex
- return trex.TRex(self)
+ from traffic_gen import trex_gen
+ return trex_gen.TRex(self)
if tool == 'dummy':
from traffic_gen import dummy
return dummy.DummyTG(self)
LOG.info('Starting traffic generator to ensure end-to-end connectivity')
# send 2pps on each chain and each direction
rate_pps = {'rate_pps': str(self.config.service_chain_count * 2)}
- self.gen.create_traffic('64', [rate_pps, rate_pps], bidirectional=True, latency=False)
-
+ self.gen.create_traffic('64', [rate_pps, rate_pps], bidirectional=True, latency=False,
+ e2e=True)
# ensures enough traffic is coming back
retry_count = (self.config.check_traffic_time_sec +
self.config.generic_poll_sec - 1) / self.config.generic_poll_sec
self.gen.stop_traffic()
self.gen.fetch_capture_packets()
self.gen.stop_capture()
-
for packet in self.gen.packet_list:
mac_id = get_mac_id(packet)
src_mac = ':'.join(["%02x" % ord(x) for x in mac_id])
- if src_mac in mac_map:
+ if src_mac in mac_map and self.is_udp(packet):
port, chain = mac_map[src_mac]
LOG.info('Received packet from mac: %s (chain=%d, port=%d)',
src_mac, chain, port)
if not mac_map:
LOG.info('End-to-end connectivity established')
return
-
+ if self.config.l3_router and not self.config.no_arp:
+ # In case of L3 traffic mode, routers are not able to route traffic
+ # until VM interfaces are up and ARP requests are done
+ LOG.info('Waiting for loopback service completely started...')
+ LOG.info('Sending ARP request to assure end-to-end connectivity established')
+ self.ensure_arp_successful()
raise TrafficClientException('End-to-end connectivity cannot be ensured')
+ def is_udp(self, packet):
+ pkt = Ether(packet['binary'])
+ return UDP in pkt
+
def ensure_arp_successful(self):
"""Resolve all IP using ARP and throw an exception in case of failure."""
dest_macs = self.gen.resolve_arp()
# interface stats for the pps because it could have been modified to contain
# additional interface stats
self.gen.get_stream_stats(stats, ifs, self.pps_list[chain_idx].latencies, chain_idx)
-
+ # special handling for vxlan
+ # in case of vxlan, flow stats are not available so all rx counters will be
+ # zeros when the total rx port counter is non zero.
+ # in that case,
+ for port in range(2):
+ total_rx = 0
+ for ifs in self.ifstats:
+ total_rx += ifs[port].rx
+ if total_rx == 0:
+ # check if the total port rx from Trex is also zero
+ port_rx = stats[port]['rx']['total_pkts']
+ if port_rx:
+ # the total rx for all chains from port level stats is non zero
+ # which means that the per-chain stats are not available
+ if len(self.ifstats) == 1:
+ # only one chain, simply report the port level rx to the chain rx stats
+ self.ifstats[0][port].rx = port_rx
+ else:
+ for ifs in self.ifstats:
+ # mark this data as unavailable
+ ifs[port].rx = None
+ # pitch in the total rx only in the last chain pps
+ self.ifstats[-1][port].rx_total = port_rx
@staticmethod
def compare_tx_rates(required, actual):
Code Review / nfvbench.git / blobdiff