2 # SPDX-License-Identifier: GPL-2.0
4 # Script example for many flows testing
6 # Number of simultaneous flows limited by variable $FLOWS
7 # and number of packets per flow controlled by variable $FLOWLEN
10 source ${basedir}/functions.sh
11 root_check_run_with_sudo "$@"
13 # Parameter parsing via include
14 source ${basedir}/parameters.sh
15 # Set some default params, if they didn't get set
16 [ -z "$DEST_IP" ] && DEST_IP="198.18.0.42"
17 [ -z "$DST_MAC" ] && DST_MAC="90:e2:ba:ff:ff:ff"
18 [ -z "$CLONE_SKB" ] && CLONE_SKB="0"
19 [ -z "$COUNT" ] && COUNT="0" # Zero means indefinitely
20 if [ -n "$DEST_IP" ]; then
21 validate_addr $DEST_IP
22 read -r DST_MIN DST_MAX <<< $(parse_addr $DEST_IP)
24 if [ -n "$DST_PORT" ]; then
25 read -r UDP_DST_MIN UDP_DST_MAX <<< $(parse_ports $DST_PORT)
26 validate_ports $UDP_DST_MIN $UDP_DST_MAX
29 # NOTICE: Script specific settings
31 # Limiting the number of concurrent flows ($FLOWS)
32 # and also set how many packets each flow contains ($FLOWLEN)
34 [ -z "$FLOWS" ] && FLOWS="8000"
35 [ -z "$FLOWLEN" ] && FLOWLEN="10"
37 if [[ -n "$BURST" ]]; then
38 err 1 "Bursting not supported for this mode"
41 # 198.18.0.0 / 198.19.255.255
42 read -r SRC_MIN SRC_MAX <<< $(parse_addr 198.18.0.0/15)
44 # General cleanup everything since last run
45 [ -z "$APPEND" ] && pg_ctrl "reset"
47 # Threads are specified with parameter -t value in $THREADS
48 for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do
51 # Add remove all other devices and add_device $dev to thread
52 [ -z "$APPEND" ] && pg_thread $thread "rem_device_all"
53 pg_thread $thread "add_device" $dev
56 pg_set $dev "flag QUEUE_MAP_CPU"
57 pg_set $dev "count $COUNT"
58 pg_set $dev "clone_skb $CLONE_SKB"
59 pg_set $dev "pkt_size $PKT_SIZE"
60 pg_set $dev "delay $DELAY"
61 pg_set $dev "flag NO_TIMESTAMP"
64 pg_set $dev "dst_mac $DST_MAC"
65 pg_set $dev "dst_min $DST_MIN"
66 pg_set $dev "dst_max $DST_MAX"
68 if [ -n "$DST_PORT" ]; then
69 # Single destination port or random port range
70 pg_set $dev "flag UDPDST_RND"
71 pg_set $dev "udp_dst_min $UDP_DST_MIN"
72 pg_set $dev "udp_dst_max $UDP_DST_MAX"
75 [ ! -z "$UDP_CSUM" ] && pg_set $dev "flag UDPCSUM"
77 # Randomize source IP-addresses
78 pg_set $dev "flag IPSRC_RND"
79 pg_set $dev "src_min $SRC_MIN"
80 pg_set $dev "src_max $SRC_MAX"
82 # Limit number of flows (max 65535)
83 pg_set $dev "flows $FLOWS"
85 # How many packets a flow will send, before flow "entry" is
87 pg_set $dev "flowlen $FLOWLEN"
89 # Flag FLOW_SEQ will cause $FLOWLEN packets from the same flow
90 # being send back-to-back, before next flow is selected
91 # incrementally. This helps lookup caches, and is more realistic.
93 pg_set $dev "flag FLOW_SEQ"
97 # Run if user hits control-c
98 function print_result() {
100 for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do
103 cat /proc/net/pktgen/$dev | grep -A2 "Result:"
106 # trap keyboard interrupt (Ctrl-C)
109 if [ -z "$APPEND" ]; then
110 echo "Running... ctrl^C to stop" >&2
115 echo "Append mode: config done. Do more or use 'pg_ctrl start' to run"