1 files changed, 69 insertions, 0 deletions
diff --git a/scripts/stl/udp_1pkt_src_ip_split_latency.py b/scripts/stl/udp_1pkt_src_ip_split_latency.py
new file mode 100644
index 00000000..4b297d70
--- /dev/null
+++ b/scripts/stl/udp_1pkt_src_ip_split_latency.py
@@ -0,0 +1,69 @@
+from trex_stl_lib.api import *
+
+
+# split the range of IP to cores 
+# add tunable by fsize to change the size of the frame 
+# latency frame is always 64 
+# trex>start -f stl/udp_1pkt_src_ip_split_latency.py -t fsize=64 -m 30% --port 0 --force
+#
+#
+
+class STLS1(object):
+
+    def __init__ (self):
+        self.fsize  =64;
+        self.lfsize  =64;
+
+
+    def create_stream (self, dir,port_id):
+        # Create base packet and pad it to size
+        size = self.fsize - 4; # HW will add 4 bytes ethernet FCS
+
+        if dir==0:
+            src_ip="16.0.0.1"
+            dst_ip="48.0.0.1"
+        else:
+            src_ip="48.0.0.1"
+            dst_ip="16.0.0.1"
+
+        base_pkt = Ether()/IP(src=src_ip,dst=dst_ip)/UDP(dport=12,sport=1025)
+
+        pad = max(0, size - len(base_pkt)) * 'x'
+        pad_latency = max(0, (self.lfsize-4) - len(base_pkt)) * 'x'
+                             
+        vm = STLScVmRaw( [   STLVmFlowVar ( "ip_src",  min_value="10.0.0.1",
+                                            max_value="10.0.0.255", size=4, step=1,op="inc"),
+                             STLVmWrFlowVar (fv_name="ip_src", pkt_offset= "IP.src" ), # write ip to packet IP.src
+                             STLVmFixIpv4(offset = "IP")                                # fix checksum
+                                  ]
+                              ,split_by_field = "ip_src"  # split to cores base on the tuple generator 
+                              ,cache_size =255 # the cache size
+                              );
+
+        pkt = STLPktBuilder(pkt = base_pkt/pad,
+                            vm = vm)
+        stream = [STLStream(packet = pkt,
+                            mode = STLTXCont(pps=1)),
+
+
+                  # latency stream   
+                  STLStream(packet = STLPktBuilder(pkt = base_pkt/pad_latency),
+                            mode = STLTXCont(pps=1000),
+                            flow_stats = STLFlowLatencyStats(pg_id = 12+port_id))
+  
+        ]
+        return stream
+
+
+    def get_streams (self, direction = 0, fsize = 64,lfsize = 64, **kwargs):
+        self.fsize  =fsize;
+        self.lfsize =lfsize
+        return self.create_stream(direction,kwargs['port_id'])
+
+
+# dynamic load - used for trex console or simulator
+def register():
+    return STLS1()
+
+
+