| # |
| # SPDX-License-Identifier: GPL-2.0 |
| # Common parameter parsing for pktgen scripts |
| # |
| |
| function usage() { |
| echo "" |
| echo "Usage: $0 [-vx] -i ethX" |
| echo " -i : (\$DEV) output interface/device (required)" |
| echo " -s : (\$PKT_SIZE) packet size" |
| echo " -d : (\$DEST_IP) destination IP" |
| echo " -m : (\$DST_MAC) destination MAC-addr" |
| echo " -t : (\$THREADS) threads to start" |
| echo " -f : (\$F_THREAD) index of first thread (zero indexed CPU number)" |
| echo " -c : (\$SKB_CLONE) SKB clones send before alloc new SKB" |
| echo " -n : (\$COUNT) num messages to send per thread, 0 means indefinitely" |
| echo " -b : (\$BURST) HW level bursting of SKBs" |
| echo " -v : (\$VERBOSE) verbose" |
| echo " -x : (\$DEBUG) debug" |
| echo " -6 : (\$IP6) IPv6" |
| echo "" |
| } |
| |
| ## --- Parse command line arguments / parameters --- |
| ## echo "Commandline options:" |
| while getopts "s:i:d:m:f:t:c:n:b:vxh6" option; do |
| case $option in |
| i) # interface |
| export DEV=$OPTARG |
| info "Output device set to: DEV=$DEV" |
| ;; |
| s) |
| export PKT_SIZE=$OPTARG |
| info "Packet size set to: PKT_SIZE=$PKT_SIZE bytes" |
| ;; |
| d) # destination IP |
| export DEST_IP=$OPTARG |
| info "Destination IP set to: DEST_IP=$DEST_IP" |
| ;; |
| m) # MAC |
| export DST_MAC=$OPTARG |
| info "Destination MAC set to: DST_MAC=$DST_MAC" |
| ;; |
| f) |
| export F_THREAD=$OPTARG |
| info "Index of first thread (zero indexed CPU number): $F_THREAD" |
| ;; |
| t) |
| export THREADS=$OPTARG |
| info "Number of threads to start: $THREADS" |
| ;; |
| c) |
| export CLONE_SKB=$OPTARG |
| info "CLONE_SKB=$CLONE_SKB" |
| ;; |
| n) |
| export COUNT=$OPTARG |
| info "COUNT=$COUNT" |
| ;; |
| b) |
| export BURST=$OPTARG |
| info "SKB bursting: BURST=$BURST" |
| ;; |
| v) |
| export VERBOSE=yes |
| info "Verbose mode: VERBOSE=$VERBOSE" |
| ;; |
| x) |
| export DEBUG=yes |
| info "Debug mode: DEBUG=$DEBUG" |
| ;; |
| 6) |
| export IP6=6 |
| info "IP6: IP6=$IP6" |
| ;; |
| h|?|*) |
| usage; |
| err 2 "[ERROR] Unknown parameters!!!" |
| esac |
| done |
| shift $(( $OPTIND - 1 )) |
| |
| if [ -z "$PKT_SIZE" ]; then |
| # NIC adds 4 bytes CRC |
| export PKT_SIZE=60 |
| info "Default packet size set to: set to: $PKT_SIZE bytes" |
| fi |
| |
| if [ -z "$F_THREAD" ]; then |
| # First thread (F_THREAD) reference the zero indexed CPU number |
| export F_THREAD=0 |
| fi |
| |
| if [ -z "$THREADS" ]; then |
| export THREADS=1 |
| fi |
| |
| export L_THREAD=$(( THREADS + F_THREAD - 1 )) |
| |
| if [ -z "$DEV" ]; then |
| usage |
| err 2 "Please specify output device" |
| fi |
| |
| if [ -z "$DST_MAC" ]; then |
| warn "Missing destination MAC address" |
| fi |
| |
| if [ -z "$DEST_IP" ]; then |
| warn "Missing destination IP address" |
| fi |
| |
| if [ ! -d /proc/net/pktgen ]; then |
| info "Loading kernel module: pktgen" |
| modprobe pktgen |
| fi |