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Jesper Dangaard Brouerb64b0d12015-05-21 12:17:19 +02001#
2# Common parameter parsing for pktgen scripts
3#
4
5function usage() {
6 echo ""
7 echo "Usage: $0 [-vx] -i ethX"
8 echo " -i : (\$DEV) output interface/device (required)"
9 echo " -s : (\$PKT_SIZE) packet size"
10 echo " -d : (\$DEST_IP) destination IP"
11 echo " -m : (\$DST_MAC) destination MAC-addr"
12 echo " -t : (\$THREADS) threads to start"
13 echo " -c : (\$SKB_CLONE) SKB clones send before alloc new SKB"
14 echo " -b : (\$BURST) HW level bursting of SKBs"
15 echo " -v : (\$VERBOSE) verbose"
16 echo " -x : (\$DEBUG) debug"
Martin KaFai Lau0f06a672016-07-20 15:48:43 -070017 echo " -6 : (\$IP6) IPv6"
Jesper Dangaard Brouerb64b0d12015-05-21 12:17:19 +020018 echo ""
19}
20
21## --- Parse command line arguments / parameters ---
22## echo "Commandline options:"
Martin KaFai Lau0f06a672016-07-20 15:48:43 -070023while getopts "s:i:d:m:t:c:b:vxh6" option; do
Jesper Dangaard Brouerb64b0d12015-05-21 12:17:19 +020024 case $option in
25 i) # interface
26 export DEV=$OPTARG
27 info "Output device set to: DEV=$DEV"
28 ;;
29 s)
30 export PKT_SIZE=$OPTARG
31 info "Packet size set to: PKT_SIZE=$PKT_SIZE bytes"
32 ;;
33 d) # destination IP
34 export DEST_IP=$OPTARG
35 info "Destination IP set to: DEST_IP=$DEST_IP"
36 ;;
37 m) # MAC
38 export DST_MAC=$OPTARG
39 info "Destination MAC set to: DST_MAC=$DST_MAC"
40 ;;
41 t)
42 export THREADS=$OPTARG
43 export CPU_THREADS=$OPTARG
44 let "CPU_THREADS -= 1"
45 info "Number of threads to start: $THREADS (0 to $CPU_THREADS)"
46 ;;
47 c)
48 export CLONE_SKB=$OPTARG
49 info "CLONE_SKB=$CLONE_SKB"
50 ;;
51 b)
52 export BURST=$OPTARG
53 info "SKB bursting: BURST=$BURST"
54 ;;
55 v)
56 export VERBOSE=yes
57 info "Verbose mode: VERBOSE=$VERBOSE"
58 ;;
59 x)
60 export DEBUG=yes
61 info "Debug mode: DEBUG=$DEBUG"
62 ;;
Martin KaFai Lau0f06a672016-07-20 15:48:43 -070063 6)
64 export IP6=6
65 info "IP6: IP6=$IP6"
66 ;;
Jesper Dangaard Brouerb64b0d12015-05-21 12:17:19 +020067 h|?|*)
68 usage;
69 err 2 "[ERROR] Unknown parameters!!!"
70 esac
71done
72shift $(( $OPTIND - 1 ))
73
74if [ -z "$PKT_SIZE" ]; then
75 # NIC adds 4 bytes CRC
76 export PKT_SIZE=60
77 info "Default packet size set to: set to: $PKT_SIZE bytes"
78fi
79
80if [ -z "$THREADS" ]; then
81 # Zero CPU threads means one thread, because CPU numbers are zero indexed
82 export CPU_THREADS=0
83 export THREADS=1
84fi
85
86if [ -z "$DEV" ]; then
87 usage
88 err 2 "Please specify output device"
89fi
90
91if [ -z "$DST_MAC" ]; then
92 warn "Missing destination MAC address"
93fi
94
95if [ -z "$DEST_IP" ]; then
96 warn "Missing destination IP address"
97fi
98
99if [ ! -d /proc/net/pktgen ]; then
100 info "Loading kernel module: pktgen"
101 modprobe pktgen
102fi