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. 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 "  -t : (\$THREADS)   threads to start"
  15     echo "  -f : (\$F_THREAD)  index of first thread (zero indexed CPU number)"
  16     echo "  -c : (\$SKB_CLONE) SKB clones send before alloc new SKB"
  17     echo "  -n : (\$COUNT)     num messages to send per thread, 0 means indefinitely"
  18     echo "  -b : (\$BURST)     HW level bursting of SKBs"
  19     echo "  -v : (\$VERBOSE)   verbose"
  20     echo "  -x : (\$DEBUG)     debug"
  21     echo "  -6 : (\$IP6)       IPv6"
  22     echo ""
  23 }
  24
  25 ##  --- Parse command line arguments / parameters ---
  26 ## echo "Commandline options:"
  27 while getopts "s:i:d:m:p:f:t:c:n:b:vxh6" option; do
  28     case $option in
  29         i) # interface
  30           export DEV=$OPTARG
  31           info "Output device set to: DEV=$DEV"
  32           ;;
  33         s)
  34           export PKT_SIZE=$OPTARG
  35           info "Packet size set to: PKT_SIZE=$PKT_SIZE bytes"
  36           ;;
  37         d) # destination IP
  38           export DEST_IP=$OPTARG
  39           info "Destination IP set to: DEST_IP=$DEST_IP"
  40           ;;
  41         m) # MAC
  42           export DST_MAC=$OPTARG
  43           info "Destination MAC set to: DST_MAC=$DST_MAC"
  44           ;;
  45         p) # PORT
  46           export DST_PORT=$OPTARG
  47           info "Destination PORT set to: DST_PORT=$DST_PORT"
  48           ;;
  49         f)
  50           export F_THREAD=$OPTARG
  51           info "Index of first thread (zero indexed CPU number): $F_THREAD"
  52           ;;
  53         t)
  54           export THREADS=$OPTARG
  55           info "Number of threads to start: $THREADS"
  56           ;;
  57         c)
  58           export CLONE_SKB=$OPTARG
  59           info "CLONE_SKB=$CLONE_SKB"
  60           ;;
  61         n)
  62           export COUNT=$OPTARG
  63           info "COUNT=$COUNT"
  64           ;;
  65         b)
  66           export BURST=$OPTARG
  67           info "SKB bursting: BURST=$BURST"
  68           ;;
  69         v)
  70           export VERBOSE=yes
  71           info "Verbose mode: VERBOSE=$VERBOSE"
  72           ;;
  73         x)
  74           export DEBUG=yes
  75           info "Debug mode: DEBUG=$DEBUG"
  76           ;;
  77         6)
  78           export IP6=6
  79           info "IP6: IP6=$IP6"
  80           ;;
  81         h|?|*)
  82           usage;
  83           err 2 "[ERROR] Unknown parameters!!!"
  84     esac
  85 done
  86 shift $(( $OPTIND - 1 ))
  87
  88 if [ -z "$PKT_SIZE" ]; then
  89     # NIC adds 4 bytes CRC
  90     export PKT_SIZE=60
  91     info "Default packet size set to: set to: $PKT_SIZE bytes"
  92 fi
  93
  94 if [ -z "$F_THREAD" ]; then
  95     # First thread (F_THREAD) reference the zero indexed CPU number
  96     export F_THREAD=0
  97 fi
  98
  99 if [ -z "$THREADS" ]; then
 100     export THREADS=1
 101 fi
 102
 103 export L_THREAD=$(( THREADS + F_THREAD - 1 ))
 104
 105 if [ -z "$DEV" ]; then
 106     usage
 107     err 2 "Please specify output device"
 108 fi
 109
 110 if [ -z "$DST_MAC" ]; then
 111     warn "Missing destination MAC address"
 112 fi
 113
 114 if [ -z "$DEST_IP" ]; then
 115     warn "Missing destination IP address"
 116 fi
 117
 118 if [ ! -d /proc/net/pktgen ]; then
 119     info "Loading kernel module: pktgen"
 120     modprobe pktgen
 121 fi