2 # SPDX-License-Identifier: GPL-2.0
5 # - developed for benchmarking egress qdisc path, derived (more
6 # like cut'n'pasted) from ingress benchmark script.
8 # Script for injecting packets into egress qdisc path of the stack
9 # with pktgen "xmit_mode queue_xmit".
12 source ${basedir}/functions.sh
13 root_check_run_with_sudo "$@"
15 # Parameter parsing via include
16 source ${basedir}/parameters.sh
17 if [ -z "$DEST_IP" ]; then
18 [ -z "$IP6" ] && DEST_IP="198.18.0.42" || DEST_IP="FD00::1"
20 [ -z "$DST_MAC" ] && DST_MAC="90:e2:ba:ff:ff:ff"
22 # Burst greater than 1 are invalid for queue_xmit mode
23 if [[ -n "$BURST" ]]; then
24 err 1 "Bursting not supported for this mode"
26 [ -z "$COUNT" ] && COUNT="10000000" # Zero means indefinitely
27 if [ -n "$DST_PORT" ]; then
28 read -r DST_MIN DST_MAX <<< $(parse_ports $DST_PORT)
29 validate_ports $DST_MIN $DST_MAX
33 DELAY="0" # Zero means max speed
35 # General cleanup everything since last run
38 # Threads are specified with parameter -t value in $THREADS
39 for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do
40 # The device name is extended with @name, using thread number to
41 # make then unique, but any name will do.
44 # Add remove all other devices and add_device $dev to thread
45 pg_thread $thread "rem_device_all"
46 pg_thread $thread "add_device" $dev
49 pg_set $dev "flag QUEUE_MAP_CPU"
50 pg_set $dev "count $COUNT"
51 pg_set $dev "pkt_size $PKT_SIZE"
52 pg_set $dev "delay $DELAY"
53 pg_set $dev "flag NO_TIMESTAMP"
56 pg_set $dev "dst_mac $DST_MAC"
57 pg_set $dev "dst$IP6 $DEST_IP"
59 if [ -n "$DST_PORT" ]; then
60 # Single destination port or random port range
61 pg_set $dev "flag UDPDST_RND"
62 pg_set $dev "udp_dst_min $DST_MIN"
63 pg_set $dev "udp_dst_max $DST_MAX"
66 # Inject packet into TX qdisc egress path of stack
67 pg_set $dev "xmit_mode queue_xmit"
71 echo "Running... ctrl^C to stop" >&2
76 for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do
79 cat /proc/net/pktgen/$dev | grep -A2 "Result:"