samples/pktgen/parameters.sh

   1 #
   2 # SPDX-License-Identifier: GPL-2.0
   3 # Common parameter parsing for pktgen scripts
   4 #
   5
   6 function 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"
  12     echo "  -m : (\$DST_MAC)   destination MAC-addr"
  13     echo "  -t : (\$THREADS)   threads to start"
  14     echo "  -f : (\$F_THREAD)  index of first thread (zero indexed CPU number)"
  15     echo "  -c : (\$SKB_CLONE) SKB clones send before alloc new SKB"
  16     echo "  -n : (\$COUNT)     num messages to send per thread, 0 means indefinitely"
  17     echo "  -b : (\$BURST)     HW level bursting of SKBs"
  18     echo "  -v : (\$VERBOSE)   verbose"
  19     echo "  -x : (\$DEBUG)     debug"
  20     echo "  -6 : (\$IP6)       IPv6"
  21     echo ""
  22 }
  23
  24 ##  --- Parse command line arguments / parameters ---
  25 ## echo "Commandline options:"
  26 while getopts "s:i:d:m:f:t:c:n:b:vxh6" option; do
  27     case $option in
  28         i) # interface
  29           export DEV=$OPTARG
  30           info "Output device set to: DEV=$DEV"
  31           ;;
  32         s)
  33           export PKT_SIZE=$OPTARG
  34           info "Packet size set to: PKT_SIZE=$PKT_SIZE bytes"
  35           ;;
  36         d) # destination IP
  37           export DEST_IP=$OPTARG
  38           info "Destination IP set to: DEST_IP=$DEST_IP"
  39           ;;
  40         m) # MAC
  41           export DST_MAC=$OPTARG
  42           info "Destination MAC set to: DST_MAC=$DST_MAC"
  43           ;;
  44         f)
  45           export F_THREAD=$OPTARG
  46           info "Index of first thread (zero indexed CPU number): $F_THREAD"
  47           ;;
  48         t)
  49           export THREADS=$OPTARG
  50           info "Number of threads to start: $THREADS"
  51           ;;
  52         c)
  53           export CLONE_SKB=$OPTARG
  54           info "CLONE_SKB=$CLONE_SKB"
  55           ;;
  56         n)
  57           export COUNT=$OPTARG
  58           info "COUNT=$COUNT"
  59           ;;
  60         b)
  61           export BURST=$OPTARG
  62           info "SKB bursting: BURST=$BURST"
  63           ;;
  64         v)
  65           export VERBOSE=yes
  66           info "Verbose mode: VERBOSE=$VERBOSE"
  67           ;;
  68         x)
  69           export DEBUG=yes
  70           info "Debug mode: DEBUG=$DEBUG"
  71           ;;
  72         6)
  73           export IP6=6
  74           info "IP6: IP6=$IP6"
  75           ;;
  76         h|?|*)
  77           usage;
  78           err 2 "[ERROR] Unknown parameters!!!"
  79     esac
  80 done
  81 shift $(( $OPTIND - 1 ))
  82
  83 if [ -z "$PKT_SIZE" ]; then
  84     # NIC adds 4 bytes CRC
  85     export PKT_SIZE=60
  86     info "Default packet size set to: set to: $PKT_SIZE bytes"
  87 fi
  88
  89 if [ -z "$F_THREAD" ]; then
  90     # First thread (F_THREAD) reference the zero indexed CPU number
  91     export F_THREAD=0
  92 fi
  93
  94 if [ -z "$THREADS" ]; then
  95     export THREADS=1
  96 fi
  97
  98 export L_THREAD=$(( THREADS + F_THREAD - 1 ))
  99
 100 if [ -z "$DEV" ]; then
 101     usage
 102     err 2 "Please specify output device"
 103 fi
 104
 105 if [ -z "$DST_MAC" ]; then
 106     warn "Missing destination MAC address"
 107 fi
 108
 109 if [ -z "$DEST_IP" ]; then
 110     warn "Missing destination IP address"
 111 fi
 112
 113 if [ ! -d /proc/net/pktgen ]; then
 114     info "Loading kernel module: pktgen"
 115     modprobe pktgen
 116 fi