blob: 32467aea8e47848dde1ba77d5ac722c520720a2e [file] [log] [blame]
Jesper Dangaard Brouer282fb582015-05-21 12:17:48 +02001#!/bin/bash
2#
3# Multiqueue: Using pktgen threads for sending on multiple CPUs
4# * adding devices to kernel threads
5# * notice the naming scheme for keeping device names unique
6# * nameing scheme: dev@thread_number
7# * flow variation via random UDP source port
8#
9basedir=`dirname $0`
10source ${basedir}/functions.sh
11root_check_run_with_sudo "$@"
12#
13# Required param: -i dev in $DEV
14source ${basedir}/parameters.sh
15
16# Base Config
17DELAY="0" # Zero means max speed
18COUNT="100000" # Zero means indefinitely
19[ -z "$CLONE_SKB" ] && CLONE_SKB="0"
20
21# Flow variation random source port between min and max
22UDP_MIN=9
23UDP_MAX=109
24
25# (example of setting default params in your script)
26[ -z "$DEST_IP" ] && DEST_IP="198.18.0.42"
27[ -z "$DST_MAC" ] && DST_MAC="90:e2:ba:ff:ff:ff"
28
29# General cleanup everything since last run
30pg_ctrl "reset"
31
32# Threads are specified with parameter -t value in $THREADS
33for ((thread = 0; thread < $THREADS; thread++)); do
34 # The device name is extended with @name, using thread number to
35 # make then unique, but any name will do.
36 dev=${DEV}@${thread}
37
38 # Add remove all other devices and add_device $dev to thread
39 pg_thread $thread "rem_device_all"
40 pg_thread $thread "add_device" $dev
41
42 # Notice config queue to map to cpu (mirrors smp_processor_id())
43 # It is beneficial to map IRQ /proc/irq/*/smp_affinity 1:1 to CPU number
44 pg_set $dev "flag QUEUE_MAP_CPU"
45
46 # Base config of dev
47 pg_set $dev "count $COUNT"
48 pg_set $dev "clone_skb $CLONE_SKB"
49 pg_set $dev "pkt_size $PKT_SIZE"
50 pg_set $dev "delay $DELAY"
51
52 # Flag example disabling timestamping
53 pg_set $dev "flag NO_TIMESTAMP"
54
55 # Destination
56 pg_set $dev "dst_mac $DST_MAC"
57 pg_set $dev "dst $DEST_IP"
58
59 # Setup random UDP port src range
60 pg_set $dev "flag UDPSRC_RND"
61 pg_set $dev "udp_src_min $UDP_MIN"
62 pg_set $dev "udp_src_max $UDP_MAX"
63done
64
65# start_run
66echo "Running... ctrl^C to stop" >&2
67pg_ctrl "start"
68echo "Done" >&2
69
70# Print results
71for ((thread = 0; thread < $THREADS; thread++)); do
72 dev=${DEV}@${thread}
73 echo "Device: $dev"
74 cat /proc/net/pktgen/$dev | grep -A2 "Result:"
75done