X-Git-Url: https://gerrit.fd.io/r/gitweb?p=csit.git;a=blobdiff_plain;f=resources%2Ftools%2Ft-rex%2Ft-rex-stateless.py;h=04f7a25294069aa5d628b84355ba9e6063d0f870;hp=5a03273339a134e99dab9b4e004757e366920ae3;hb=ccdcc18ff5ab339f715179d3215fe174252a1187;hpb=b7b9a6f73347fba29060f3c2a2abfc4ea411de68 diff --git a/resources/tools/t-rex/t-rex-stateless.py b/resources/tools/t-rex/t-rex-stateless.py index 5a03273339..04f7a25294 100755 --- a/resources/tools/t-rex/t-rex-stateless.py +++ b/resources/tools/t-rex/t-rex-stateless.py @@ -48,10 +48,14 @@ import string import struct import sys -sys.path.insert(0, "/opt/trex-core-2.00/scripts/automation/"+\ +sys.path.insert(0, "/opt/trex-core-2.06/scripts/automation/"+\ "trex_control_plane/stl/") from trex_stl_lib.api import * +stream_table = {'IMIX_v4_1': [{'size': 64, 'pps': 28, 'isg':0}, + {'size': 570, 'pps': 16, 'isg':0.1}, + {'size': 1518, 'pps': 4, 'isg':0.2}] + } def generate_payload(length): """Generate payload. @@ -100,8 +104,75 @@ def get_start_end_ipv6(start_ip, end_ip): return base_p1, max_p1 +def create_streams_v46(base_pkt_a, base_pkt_b, vm1, vm2, frame_size): + """Create STLStream streams + + :param base_pkt_a: Base packet a for stream_a + :param base_pkt_b: Base packet b for stream_b + :param vm1: vm for stream_a + :param vm2: vm for stream_b + :param frame_size: frame size or name of traffic profile + :type base_pkt_a: Eth (scapy) + :type base_pkt_b: Eth (scapy) + :type vm1: STLScVmRaw + :type vm2: STLScVmRaw + :frame_size: int or string + :return: stream_a, stream_b, stream_a_latency, stream_b_latency + :rtype: STLStream, STLStream, STLStream, STLStream + """ + + if type(frame_size) is int: + + fsize_no_fcs = frame_size - 4 # no FCS + pkt_a = STLPktBuilder(pkt=base_pkt_a/generate_payload( + max(0, fsize_no_fcs-len(base_pkt_a))), vm=vm1) + pkt_b = STLPktBuilder(pkt=base_pkt_b/generate_payload( + max(0, fsize_no_fcs-len(base_pkt_b))), vm=vm2) + pkt_lat_a = STLPktBuilder(pkt=base_pkt_a/generate_payload( + max(0, fsize_no_fcs-len(base_pkt_a)))) + pkt_lat_b = STLPktBuilder(pkt=base_pkt_b/generate_payload( + max(0, fsize_no_fcs-len(base_pkt_b)))) + lat_stream1 = STLStream(packet=pkt_lat_a, + flow_stats=STLFlowLatencyStats(pg_id=0), + mode=STLTXCont(pps=1000)) + # second traffic stream with a phase of 10ns (inter stream gap) + lat_stream2 = STLStream(packet=pkt_lat_b, + isg=10.0, + flow_stats=STLFlowLatencyStats(pg_id=1), + mode=STLTXCont(pps=1000)) + + stream1 = STLStream(packet=pkt_a, + mode=STLTXCont(pps=1000)) + # second traffic stream with a phase of 10ns (inter stream gap) + stream2 = STLStream(packet=pkt_b, + isg=10.0, + mode=STLTXCont(pps=1000)) + elif type(frame_size) is str: + lat_stream1 = [] + lat_stream2 = [] + stream1 = [] + stream2 = [] + + for x in stream_table[frame_size]: + fsize_no_fcs = x['size'] - 4 # no FCS + pkt_a = STLPktBuilder(pkt=base_pkt_a/generate_payload( + max(0, fsize_no_fcs-len(base_pkt_a))), vm=vm1) + pkt_b = STLPktBuilder(pkt=base_pkt_b/generate_payload( + max(0, fsize_no_fcs-len(base_pkt_b))), vm=vm2) + + stream1.append(STLStream(packet=pkt_a, + isg=x['isg'], + mode=STLTXCont(pps=x['pps']))) + stream2.append(STLStream(packet=pkt_b, + isg=x['isg'], + mode=STLTXCont(pps=x['pps']))) -def create_packets(traffic_options, frame_size=64): + else: + raise ValueError("Unknown frame_size type") + + return (stream1, stream2, lat_stream1, lat_stream2) + +def create_streams(traffic_options, frame_size=64): """Create two IP packets to be used in stream. :param traffic_options: Parameters for packets. @@ -109,15 +180,13 @@ def create_packets(traffic_options, frame_size=64): :type traffic_options: list :type frame_size: int :return: Packet instances. - :rtype STLPktBuilder + :rtype: Tuple of STLPktBuilder """ - if frame_size < 64: - print_error("Packet min. size is 64B") + if type(frame_size) is int and frame_size < 64: + print_error("Frame min. size is 64B") sys.exit(1) - fsize_no_fcs = frame_size - 4 # no FCS - p1_src_start_ip = traffic_options['p1_src_start_ip'] p1_src_end_ip = traffic_options['p1_src_end_ip'] p1_dst_start_ip = traffic_options['p1_dst_start_ip'] @@ -149,15 +218,10 @@ def create_packets(traffic_options, frame_size=64): STLVmFixIpv4(offset="IP"), ], split_by_field="src") - pkt_a = STLPktBuilder(pkt=base_pkt_a/generate_payload( - fsize_no_fcs-len(base_pkt_a)), vm=vm1) - pkt_b = STLPktBuilder(pkt=base_pkt_b/generate_payload( - fsize_no_fcs-len(base_pkt_b)), vm=vm2) - - return(pkt_a, pkt_b) + return create_streams_v46(base_pkt_a, base_pkt_b, vm1, vm2, frame_size) -def create_packets_v6(traffic_options, frame_size=78): +def create_streams_v6(traffic_options, frame_size=78): """Create two IPv6 packets to be used in stream. :param traffic_options: Parameters for packets. @@ -165,15 +229,13 @@ def create_packets_v6(traffic_options, frame_size=78): :type traffic_options: List :type frame_size: int :return: Packet instances. - :rtype STLPktBuilder + :rtype: Tuple of STLPktBuilder """ - if frame_size < 78: - print "Packet min. size is 78B" + if type(frame_size) is int and frame_size < 78: + print_error("Frame min. size is 78B") sys.exit(2) - fsize_no_fcs = frame_size - 4 # no FCS - p1_src_start_ip = traffic_options['p1_src_start_ip'] p1_src_end_ip = traffic_options['p1_src_end_ip'] p1_dst_start_ip = traffic_options['p1_dst_start_ip'] @@ -209,29 +271,30 @@ def create_packets_v6(traffic_options, frame_size=78): ] , split_by_field="ipv6_src") - pkt_a = STLPktBuilder(pkt=base_pkt_a/generate_payload( - max(0, fsize_no_fcs-len(base_pkt_a))), vm=vm1) - pkt_b = STLPktBuilder(pkt=base_pkt_b/generate_payload( - max(0, fsize_no_fcs-len(base_pkt_b))), vm=vm2) + return create_streams_v46(base_pkt_a, base_pkt_b, vm1, vm2, frame_size) - return(pkt_a, pkt_b) - - -def simple_burst(pkt_a, pkt_b, duration, rate, warmup_time, async_start): +def simple_burst(stream_a, stream_b, stream_lat_a, stream_lat_b, duration, rate, + warmup_time, async_start, latency): """Run the traffic with specific parameters. :param pkt_a: Base packet for stream 1. :param pkt_b: Base packet for stream 2. + :param pkt_lat_a: Base packet for latency stream 1. + :param pkt_lat_b: Base packet for latency stream 2. :param duration: Duration of traffic run in seconds (-1=infinite). :param rate: Rate of traffic run [percentage, pps, bps]. :param warmup_time: Warm up duration. - :async_start: Start the traffic and exit + :param async_start: Start the traffic and exit. + :param latency: With latency stats. :type pkt_a: STLPktBuilder :type pkt_b: STLPktBuilder + :type pkt_lat_a: STLPktBuilder + :type pkt_lat_b: STLPktBuilder :type duration: int :type rate: string :type warmup_time: int :type async_start: bool + :type latency: bool :return: nothing """ @@ -242,37 +305,44 @@ def simple_burst(pkt_a, pkt_b, duration, rate, warmup_time, async_start): total_sent = 0 lost_a = 0 lost_b = 0 + lat_a = 'NA' + lat_b = 'NA' try: # turn this off if too many logs #client.set_verbose("high") - # create two streams - stream1 = STLStream(packet=pkt_a, - mode=STLTXCont(pps=100)) - - # second stream with a phase of 10ns (inter stream gap) - stream2 = STLStream(packet=pkt_b, - isg=10.0, - mode=STLTXCont(pps=100)) - # connect to server client.connect() # prepare our ports (my machine has 0 <--> 1 with static route) client.reset(ports=[0, 1]) - # add both streams to ports - client.add_streams(stream1, ports=[0]) - client.add_streams(stream2, ports=[1]) + client.add_streams(stream_a, ports=[0]) + client.add_streams(stream_b, ports=[1]) + + if latency: + client.add_streams(stream_lat_a, ports=[0]) + client.add_streams(stream_lat_b, ports=[1]) #warmup phase if warmup_time > 0: + # clear the stats before injecting client.clear_stats() + + # choose rate and start traffic client.start(ports=[0, 1], mult=rate, duration=warmup_time) + + # block until done client.wait_on_traffic(ports=[0, 1], timeout=(warmup_time+30)) + + if client.get_warnings(): + for warning in client.get_warnings(): + print_error(warning) + + # read the stats after the test stats = client.get_stats() - print stats + print "#####warmup statistics#####" print json.dumps(stats, indent=4, separators=(',', ': '), sort_keys=True) @@ -282,11 +352,8 @@ def simple_burst(pkt_a, pkt_b, duration, rate, warmup_time, async_start): print "\npackets lost from 0 --> 1: {0} pkts".format(lost_a) print "packets lost from 1 --> 0: {0} pkts".format(lost_b) - # clear the stats before injecting client.clear_stats() - total_rcvd = 0 - total_sent = 0 lost_a = 0 lost_b = 0 @@ -297,16 +364,29 @@ def simple_burst(pkt_a, pkt_b, duration, rate, warmup_time, async_start): # block until done client.wait_on_traffic(ports=[0, 1], timeout=(duration+30)) + if client.get_warnings(): + for warning in client.get_warnings(): + print_error(warning) + # read the stats after the test stats = client.get_stats() print "#####statistics#####" print json.dumps(stats, indent=4, separators=(',', ': '), sort_keys=True) - lost_a = stats[0]["opackets"] - stats[1]["ipackets"] lost_b = stats[1]["opackets"] - stats[0]["ipackets"] + if latency: + lat_a = "/".join((\ + str(stats["latency"][0]["latency"]["total_min"]),\ + str(stats["latency"][0]["latency"]["average"]),\ + str(stats["latency"][0]["latency"]["total_max"]))) + lat_b = "/".join((\ + str(stats["latency"][1]["latency"]["total_min"]),\ + str(stats["latency"][1]["latency"]["average"]),\ + str(stats["latency"][1]["latency"]["total_max"]))) + total_sent = stats[0]["opackets"] + stats[1]["opackets"] total_rcvd = stats[0]["ipackets"] + stats[1]["ipackets"] @@ -322,8 +402,11 @@ def simple_burst(pkt_a, pkt_b, duration, rate, warmup_time, async_start): client.disconnect(stop_traffic=False, release_ports=True) else: client.disconnect() - print "rate={0}, totalReceived={1}, totalSent={2}, frameLoss={3}"\ - .format(rate, total_rcvd, total_sent, lost_a+lost_b) + print "rate={0}, totalReceived={1}, totalSent={2}, "\ + "frameLoss={3}, latencyStream0(usec)={4}, "\ + "latencyStream1(usec)={5}".format(rate, total_rcvd,\ + total_sent, lost_a+lost_b, lat_a, lat_b) + def print_error(msg): """Print error message on stderr. @@ -336,29 +419,31 @@ def print_error(msg): sys.stderr.write(msg+'\n') -def main(): - """Main function.""" +def parse_args(): + """Parse arguments from cmd line. - _traffic_options = {} - #default L3 profile is IPv4 - _use_ipv6 = False - #default warmup time is 5 seconds - _warmup_time = 5 - #default behaviour of this script is sychronous - _async_call = False + :return: Parsed arguments. + :rtype ArgumentParser + """ parser = argparse.ArgumentParser() parser.add_argument("-d", "--duration", required=True, type=int, help="Duration of traffic run") - parser.add_argument("-s", "--frame_size", required=True, type=int, + parser.add_argument("-s", "--frame_size", required=True, help="Size of a Frame without padding and IPG") parser.add_argument("-r", "--rate", required=True, help="Traffic rate with included units (%, pps)") parser.add_argument("-6", "--use_IPv6", action="store_true", + default=False, help="Use IPv6 traffic profile instead of IPv4") parser.add_argument("--async", action="store_true", + default=False, help="Non-blocking call of the script") + parser.add_argument("--latency", action="store_true", + default=False, + help="Add latency stream") parser.add_argument("-w", "--warmup_time", type=int, + default=5, help="Traffic warmup time in seconds, 0 = disable") # parser.add_argument("--p1_src_mac", # help="Port 1 source MAC address") @@ -385,29 +470,44 @@ def main(): # parser.add_argument("--p2_dst_end_ip", # help="Port 2 destination end IP address") - args = parser.parse_args() + return parser.parse_args() + + +def main(): + """Main function.""" + + args = parse_args() _duration = args.duration - _frame_size = args.frame_size + _latency = args.latency + if args.frame_size.isdigit(): + _frame_size = int(args.frame_size) + else: + _frame_size = args.frame_size + _latency = False _rate = args.rate _use_ipv6 = args.use_IPv6 _async_call = args.async + _warmup_time = args.warmup_time - if args.warmup_time is not None: - _warmup_time = args.warmup_time - + _traffic_options = {} for attr in [a for a in dir(args) if a.startswith('p')]: if getattr(args, attr) is not None: _traffic_options[attr] = getattr(args, attr) if _use_ipv6: - pkt_a, pkt_b = create_packets_v6(_traffic_options, - frame_size=_frame_size) + # WARNING: Trex limitation to IPv4 only. IPv6 is not yet supported. + print_error('IPv6 latency is not supported yet. Running without lat.') + _latency = False + + stream_a, stream_b, stream_lat_a, stream_lat_b = create_streams_v6( + _traffic_options, frame_size=_frame_size) else: - pkt_a, pkt_b = create_packets(_traffic_options, - frame_size=_frame_size) + stream_a, stream_b, stream_lat_a, stream_lat_b = create_streams( + _traffic_options, frame_size=_frame_size) - simple_burst(pkt_a, pkt_b, _duration, _rate, _warmup_time, _async_call) + simple_burst(stream_a, stream_b, stream_lat_a, stream_lat_b, + _duration, _rate, _warmup_time, _async_call, _latency) if __name__ == "__main__": sys.exit(main())