diff options
Diffstat (limited to 'scripts/stl/flow_stats_latency.py')
| -rw-r--r-- | scripts/stl/flow_stats_latency.py | 38 |
1 files changed, 25 insertions, 13 deletions
diff --git a/scripts/stl/flow_stats_latency.py b/scripts/stl/flow_stats_latency.py index e1541272..8460fcfc 100644 --- a/scripts/stl/flow_stats_latency.py +++ b/scripts/stl/flow_stats_latency.py @@ -1,21 +1,33 @@ from trex_stl_lib.api import * -import os - -# stream from pcap file. continues pps 10 in sec -CP = os.path.join(os.path.dirname(__file__)) class STLS1(object): - - def get_streams (self, direction = 0, **kwargs): - return [STLStream(packet = STLPktBuilder(pkt = os.path.join(CP, "yaml/udp_64B_no_crc.pcap")), # path relative to pwd - mode = STLTXCont(pps=1000), - flow_stats = STLFlowLatencyStats(pg_id = 1 + kwargs['port_id'])), - - STLStream(packet = STLPktBuilder(pkt = os.path.join(CP, "yaml/udp_594B_no_crc.pcap")), # path relative to pwd - mode = STLTXCont(pps=5000), - flow_stats = STLFlowLatencyStats(pg_id = 50 + kwargs['port_id'])) + """ + Create flow stat latency stream of UDP packet. + Can specify using tunables the packet length (fsize) and packet group id (pg_id) + Since we can't have two latency streams with same pg_id, in order to be able to start this profile + on more than one port, we add port_id to the pg_id + """ + + def __init__ (self): + self.fsize = 64 + self.pg_id = 0 + + def _create_stream (self): + size = self.fsize - 4; # HW will add 4 bytes ethernet FCS + base_pkt = Ether() / IP(src = "16.0.0.1", dst = "48.0.0.1") / UDP(dport = 12, sport = 1025) + pad = max(0, size - len(base_pkt)) * 'x' + pkt = STLPktBuilder(pkt = base_pkt/pad) + + return [STLStream(packet = pkt, + mode = STLTXCont(pps=1), + flow_stats = STLFlowLatencyStats(pg_id = self.pg_id)) ] + def get_streams (self, fsize = 64, pg_id = 7, **kwargs): + self.fsize = fsize + self.pg_id = pg_id + kwargs['port_id'] + return self._create_stream() + # dynamic load - used for trex console or simulator def register(): |