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1#
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"
17 echo " -6 : (\$IP6) IPv6"
18 echo ""
19}
20
21## --- Parse command line arguments / parameters ---
22## echo "Commandline options:"
23while getopts "s:i:d:m:t:c:b:vxh6" option; do
24 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=$DEBUG"
62 ;;
63 6)
64 export IP6=6
65 info "IP6: IP6=$IP6"
66 ;;
67 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
1#
2# SPDX-License-Identifier: GPL-2.0
3# Common parameter parsing for pktgen scripts
4#
5
6function usage() {
7 echo ""
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"
25 echo ""
26}
27
28## --- Parse command line arguments / parameters ---
29## echo "Commandline options:"
30while getopts "s:i:d:m:p:f:t:c:n:b:w:vxh6ak" option; do
31 case $option in
32 i) # interface
33 export DEV=$OPTARG
34 info "Output device set to: DEV=$DEV"
35 ;;
36 s)
37 export PKT_SIZE=$OPTARG
38 info "Packet size set to: PKT_SIZE=$PKT_SIZE bytes"
39 ;;
40 d) # destination IP
41 export DEST_IP=$OPTARG
42 info "Destination IP set to: DEST_IP=$DEST_IP"
43 ;;
44 m) # MAC
45 export DST_MAC=$OPTARG
46 info "Destination MAC set to: DST_MAC=$DST_MAC"
47 ;;
48 p) # PORT
49 export DST_PORT=$OPTARG
50 info "Destination PORT set to: DST_PORT=$DST_PORT"
51 ;;
52 f)
53 export F_THREAD=$OPTARG
54 info "Index of first thread (zero indexed CPU number): $F_THREAD"
55 ;;
56 t)
57 export THREADS=$OPTARG
58 info "Number of threads to start: $THREADS"
59 ;;
60 c)
61 export CLONE_SKB=$OPTARG
62 info "CLONE_SKB=$CLONE_SKB"
63 ;;
64 n)
65 export COUNT=$OPTARG
66 info "COUNT=$COUNT"
67 ;;
68 b)
69 export BURST=$OPTARG
70 info "SKB bursting: BURST=$BURST"
71 ;;
72 w)
73 export DELAY=$OPTARG
74 info "DELAY=$DELAY"
75 ;;
76 v)
77 export VERBOSE=yes
78 info "Verbose mode: VERBOSE=$VERBOSE"
79 ;;
80 x)
81 export DEBUG=yes
82 info "Debug mode: DEBUG=$DEBUG"
83 ;;
84 6)
85 export IP6=6
86 info "IP6: IP6=$IP6"
87 ;;
88 a)
89 export APPEND=yes
90 info "Append mode: APPEND=$APPEND"
91 ;;
92 k)
93 export UDP_CSUM=yes
94 info "UDP tx checksum: UDP_CSUM=$UDP_CSUM"
95 ;;
96 h|?|*)
97 usage;
98 err 2 "[ERROR] Unknown parameters!!!"
99 esac
100done
101shift $(( $OPTIND - 1 ))
102
103if [ -z "$PKT_SIZE" ]; then
104 # NIC adds 4 bytes CRC
105 export PKT_SIZE=60
106 info "Default packet size set to: set to: $PKT_SIZE bytes"
107fi
108
109if [ -z "$F_THREAD" ]; then
110 # First thread (F_THREAD) reference the zero indexed CPU number
111 export F_THREAD=0
112fi
113
114if [ -z "$THREADS" ]; then
115 export THREADS=1
116fi
117
118# default DELAY
119[ -z "$DELAY" ] && export DELAY=0 # Zero means max speed
120
121export L_THREAD=$(( THREADS + F_THREAD - 1 ))
122
123if [ -z "$DEV" ]; then
124 usage
125 err 2 "Please specify output device"
126fi
127
128if [ -z "$DST_MAC" ]; then
129 warn "Missing destination MAC address"
130fi
131
132if [ -z "$DEST_IP" ]; then
133 warn "Missing destination IP address"
134fi
135
136if [ ! -d /proc/net/pktgen ]; then
137 info "Loading kernel module: pktgen"
138 modprobe pktgen
139fi