2 # SPDX-License-Identifier: GPL-2.0
4 # Multiqueue: Using pktgen threads for sending on multiple CPUs
5 # * adding devices to kernel threads
6 # * notice the naming scheme for keeping device names unique
7 # * nameing scheme: dev@thread_number
8 # * flow variation via random UDP source port
11 source ${basedir}/functions.sh
12 root_check_run_with_sudo "$@"
14 # Required param: -i dev in $DEV
15 source ${basedir}/parameters.sh
17 [ -z "$COUNT" ] && COUNT="100000" # Zero means indefinitely
20 DELAY="0" # Zero means max speed
21 [ -z "$CLONE_SKB" ] && CLONE_SKB="0"
23 # Flow variation random source port between min and max
27 # (example of setting default params in your script)
28 if [ -z "$DEST_IP" ]; then
29 [ -z "$IP6" ] && DEST_IP="198.18.0.42" || DEST_IP="FD00::1"
31 [ -z "$DST_MAC" ] && DST_MAC="90:e2:ba:ff:ff:ff"
32 if [ -n "$DST_PORT" ]; then
33 read -r DST_MIN DST_MAX <<< $(parse_ports $DST_PORT)
34 validate_ports $DST_MIN $DST_MAX
37 # General cleanup everything since last run
40 # Threads are specified with parameter -t value in $THREADS
41 for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do
42 # The device name is extended with @name, using thread number to
43 # make then unique, but any name will do.
46 # Add remove all other devices and add_device $dev to thread
47 pg_thread $thread "rem_device_all"
48 pg_thread $thread "add_device" $dev
50 # Notice config queue to map to cpu (mirrors smp_processor_id())
51 # It is beneficial to map IRQ /proc/irq/*/smp_affinity 1:1 to CPU number
52 pg_set $dev "flag QUEUE_MAP_CPU"
55 pg_set $dev "count $COUNT"
56 pg_set $dev "clone_skb $CLONE_SKB"
57 pg_set $dev "pkt_size $PKT_SIZE"
58 pg_set $dev "delay $DELAY"
60 # Flag example disabling timestamping
61 pg_set $dev "flag NO_TIMESTAMP"
64 pg_set $dev "dst_mac $DST_MAC"
65 pg_set $dev "dst$IP6 $DEST_IP"
67 if [ -n "$DST_PORT" ]; then
68 # Single destination port or random port range
69 pg_set $dev "flag UDPDST_RND"
70 pg_set $dev "udp_dst_min $DST_MIN"
71 pg_set $dev "udp_dst_max $DST_MAX"
74 # Setup random UDP port src range
75 pg_set $dev "flag UDPSRC_RND"
76 pg_set $dev "udp_src_min $UDP_MIN"
77 pg_set $dev "udp_src_max $UDP_MAX"
81 echo "Running... ctrl^C to stop" >&2
86 for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do
89 cat /proc/net/pktgen/$dev | grep -A2 "Result:"