samples/pktgen/parameters.sh

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