2 # SPDX-License-Identifier: GPL-2.0
3 # Common parameter parsing for pktgen scripts
8 echo "Usage: $0 [-vx] -i ethX"
9 echo " -i : (\$DEV) output interface/device (required)"
10 echo " -s : (\$PKT_SIZE) packet size"
11 echo " -d : (\$DEST_IP) destination IP. CIDR (e.g. 198.18.0.0/15) is also allowed"
12 echo " -m : (\$DST_MAC) destination MAC-addr"
13 echo " -p : (\$DST_PORT) destination PORT range (e.g. 433-444) is also allowed"
14 echo " -k : (\$UDP_CSUM) enable UDP tx checksum"
15 echo " -t : (\$THREADS) threads to start"
16 echo " -f : (\$F_THREAD) index of first thread (zero indexed CPU number)"
17 echo " -c : (\$SKB_CLONE) SKB clones send before alloc new SKB"
18 echo " -n : (\$COUNT) num messages to send per thread, 0 means indefinitely"
19 echo " -b : (\$BURST) HW level bursting of SKBs"
20 echo " -v : (\$VERBOSE) verbose"
21 echo " -x : (\$DEBUG) debug"
22 echo " -6 : (\$IP6) IPv6"
23 echo " -w : (\$DELAY) Tx Delay value (ns)"
24 echo " -a : (\$APPEND) Script will not reset generator's state, but will append its config"
28 ## --- Parse command line arguments / parameters ---
29 ## echo "Commandline options:"
30 while getopts "s:i:d:m:p:f:t:c:n:b:w:vxh6ak" option; do
34 info "Output device set to: DEV=$DEV"
37 export PKT_SIZE=$OPTARG
38 info "Packet size set to: PKT_SIZE=$PKT_SIZE bytes"
41 export DEST_IP=$OPTARG
42 info "Destination IP set to: DEST_IP=$DEST_IP"
45 export DST_MAC=$OPTARG
46 info "Destination MAC set to: DST_MAC=$DST_MAC"
49 export DST_PORT=$OPTARG
50 info "Destination PORT set to: DST_PORT=$DST_PORT"
53 export F_THREAD=$OPTARG
54 info "Index of first thread (zero indexed CPU number): $F_THREAD"
57 export THREADS=$OPTARG
58 info "Number of threads to start: $THREADS"
61 export CLONE_SKB=$OPTARG
62 info "CLONE_SKB=$CLONE_SKB"
70 info "SKB bursting: BURST=$BURST"
78 info "Verbose mode: VERBOSE=$VERBOSE"
82 info "Debug mode: DEBUG=$DEBUG"
90 info "Append mode: APPEND=$APPEND"
94 info "UDP tx checksum: UDP_CSUM=$UDP_CSUM"
98 err 2 "[ERROR] Unknown parameters!!!"
101 shift $(( $OPTIND - 1 ))
103 if [ -z "$PKT_SIZE" ]; then
104 # NIC adds 4 bytes CRC
106 info "Default packet size set to: set to: $PKT_SIZE bytes"
109 if [ -z "$F_THREAD" ]; then
110 # First thread (F_THREAD) reference the zero indexed CPU number
114 if [ -z "$THREADS" ]; then
119 [ -z "$DELAY" ] && export DELAY=0 # Zero means max speed
121 export L_THREAD=$(( THREADS + F_THREAD - 1 ))
123 if [ -z "$DEV" ]; then
125 err 2 "Please specify output device"
128 if [ -z "$DST_MAC" ]; then
129 warn "Missing destination MAC address"
132 if [ -z "$DEST_IP" ]; then
133 warn "Missing destination IP address"
136 if [ ! -d /proc/net/pktgen ]; then
137 info "Loading kernel module: pktgen"