]>
git.ipfire.org Git - thirdparty/linux.git/blob - samples/pktgen/pktgen_sample02_multiqueue.sh
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 ${basedir}/parameters.sh
20 [ -z "$COUNT" ] && COUNT
="100000" # Zero means indefinitely
23 [ -z "$CLONE_SKB" ] && CLONE_SKB
="0"
25 # Flow variation random source port between min and max
29 # (example of setting default params in your script)
30 if [ -z "$DEST_IP" ]; then
31 [ -z "$IP6" ] && DEST_IP
="198.18.0.42" || DEST_IP
="FD00::1"
33 [ -z "$DST_MAC" ] && DST_MAC
="90:e2:ba:ff:ff:ff"
34 if [ -n "$DEST_IP" ]; then
35 validate_addr
${IP6} $DEST_IP
36 read -r DST_MIN DST_MAX
<<< $
(parse_addr
${IP6} $DEST_IP)
38 if [ -n "$DST_PORT" ]; then
39 read -r UDP_DST_MIN UDP_DST_MAX
<<< $
(parse_ports
$DST_PORT)
40 validate_ports
$UDP_DST_MIN $UDP_DST_MAX
43 # General cleanup everything since last run
44 [ -z "$APPEND" ] && pg_ctrl
"reset"
46 # Threads are specified with parameter -t value in $THREADS
47 for ((thread
= $F_THREAD; thread
<= $L_THREAD; thread
++)); do
48 # The device name is extended with @name, using thread number to
49 # make then unique, but any name will do.
52 # Add remove all other devices and add_device $dev to thread
53 [ -z "$APPEND" ] && pg_thread
$thread "rem_device_all"
54 pg_thread
$thread "add_device" $dev
56 # Notice config queue to map to cpu (mirrors smp_processor_id())
57 # It is beneficial to map IRQ /proc/irq/*/smp_affinity 1:1 to CPU number
58 pg_set
$dev "flag QUEUE_MAP_CPU"
61 pg_set
$dev "count $COUNT"
62 pg_set
$dev "clone_skb $CLONE_SKB"
63 pg_set
$dev "pkt_size $PKT_SIZE"
64 pg_set
$dev "delay $DELAY"
66 # Flag example disabling timestamping
67 pg_set
$dev "flag NO_TIMESTAMP"
70 pg_set
$dev "dst_mac $DST_MAC"
71 pg_set
$dev "dst${IP6}_min $DST_MIN"
72 pg_set
$dev "dst${IP6}_max $DST_MAX"
74 if [ -n "$DST_PORT" ]; then
75 # Single destination port or random port range
76 pg_set
$dev "flag UDPDST_RND"
77 pg_set
$dev "udp_dst_min $UDP_DST_MIN"
78 pg_set
$dev "udp_dst_max $UDP_DST_MAX"
81 [ ! -z "$UDP_CSUM" ] && pg_set
$dev "flag UDPCSUM"
83 # Setup random UDP port src range
84 pg_set
$dev "flag UDPSRC_RND"
85 pg_set
$dev "udp_src_min $UDP_SRC_MIN"
86 pg_set
$dev "udp_src_max $UDP_SRC_MAX"
89 # Run if user hits control-c
90 function print_result
() {
92 for ((thread
= $F_THREAD; thread
<= $L_THREAD; thread
++)); do
95 cat /proc
/net
/pktgen
/$dev |
grep -A2 "Result:"
98 # trap keyboard interrupt (Ctrl-C)
101 if [ -z "$APPEND" ]; then
103 echo "Running... ctrl^C to stop" >&2
109 echo "Append mode: config done. Do more or use 'pg_ctrl start' to run"