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 "  -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:"
  23 while 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
  71 done
  72 shift $(( $OPTIND - 1 ))
  73
  74 if [ -z "$PKT_SIZE" ]; then
  75     # NIC adds 4 bytes CRC
  76     export PKT_SIZE=60
  77     info "Default packet size set to: set to: $PKT_SIZE bytes"
  78 fi
  79
  80 if [ -z "$THREADS" ]; then
  81     # Zero CPU threads means one thread, because CPU numbers are zero indexed
  82     export CPU_THREADS=0
  83     export THREADS=1
  84 fi
  85
  86 if [ -z "$DEV" ]; then
  87     usage
  88     err 2 "Please specify output device"
  89 fi
  90
  91 if [ -z "$DST_MAC" ]; then
  92     warn "Missing destination MAC address"
  93 fi
  94
  95 if [ -z "$DEST_IP" ]; then
  96     warn "Missing destination IP address"
  97 fi
  98
  99 if [ ! -d /proc/net/pktgen ]; then
 100     info "Loading kernel module: pktgen"
 101     modprobe pktgen
 102 fi