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