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134 lines
3.5 KiB
134 lines
3.5 KiB
# |
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# SPDX-License-Identifier: GPL-2.0 |
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# Common parameter parsing for pktgen scripts |
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# |
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function usage() { |
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echo "" |
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echo "Usage: $0 [-vx] -i ethX" |
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echo " -i : (\$DEV) output interface/device (required)" |
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echo " -s : (\$PKT_SIZE) packet size" |
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echo " -d : (\$DEST_IP) destination IP. CIDR (e.g. 198.18.0.0/15) is also allowed" |
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echo " -m : (\$DST_MAC) destination MAC-addr" |
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echo " -p : (\$DST_PORT) destination PORT range (e.g. 433-444) is also allowed" |
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echo " -t : (\$THREADS) threads to start" |
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echo " -f : (\$F_THREAD) index of first thread (zero indexed CPU number)" |
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echo " -c : (\$SKB_CLONE) SKB clones send before alloc new SKB" |
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echo " -n : (\$COUNT) num messages to send per thread, 0 means indefinitely" |
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echo " -b : (\$BURST) HW level bursting of SKBs" |
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echo " -v : (\$VERBOSE) verbose" |
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echo " -x : (\$DEBUG) debug" |
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echo " -6 : (\$IP6) IPv6" |
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echo " -w : (\$DELAY) Tx Delay value (ns)" |
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echo " -a : (\$APPEND) Script will not reset generator's state, but will append its config" |
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echo "" |
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} |
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## --- Parse command line arguments / parameters --- |
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## echo "Commandline options:" |
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while getopts "s:i:d:m:p:f:t:c:n:b:w:vxh6a" option; do |
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case $option in |
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i) # interface |
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export DEV=$OPTARG |
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info "Output device set to: DEV=$DEV" |
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;; |
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s) |
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export PKT_SIZE=$OPTARG |
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info "Packet size set to: PKT_SIZE=$PKT_SIZE bytes" |
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;; |
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d) # destination IP |
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export DEST_IP=$OPTARG |
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info "Destination IP set to: DEST_IP=$DEST_IP" |
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;; |
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m) # MAC |
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export DST_MAC=$OPTARG |
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info "Destination MAC set to: DST_MAC=$DST_MAC" |
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;; |
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p) # PORT |
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export DST_PORT=$OPTARG |
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info "Destination PORT set to: DST_PORT=$DST_PORT" |
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;; |
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f) |
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export F_THREAD=$OPTARG |
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info "Index of first thread (zero indexed CPU number): $F_THREAD" |
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;; |
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t) |
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export THREADS=$OPTARG |
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info "Number of threads to start: $THREADS" |
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;; |
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c) |
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export CLONE_SKB=$OPTARG |
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info "CLONE_SKB=$CLONE_SKB" |
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;; |
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n) |
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export COUNT=$OPTARG |
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info "COUNT=$COUNT" |
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;; |
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b) |
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export BURST=$OPTARG |
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info "SKB bursting: BURST=$BURST" |
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;; |
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w) |
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export DELAY=$OPTARG |
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info "DELAY=$DELAY" |
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;; |
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v) |
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export VERBOSE=yes |
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info "Verbose mode: VERBOSE=$VERBOSE" |
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;; |
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x) |
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export DEBUG=yes |
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info "Debug mode: DEBUG=$DEBUG" |
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;; |
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6) |
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export IP6=6 |
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info "IP6: IP6=$IP6" |
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;; |
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a) |
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export APPEND=yes |
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info "Append mode: APPEND=$APPEND" |
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;; |
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h|?|*) |
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usage; |
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err 2 "[ERROR] Unknown parameters!!!" |
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esac |
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done |
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shift $(( $OPTIND - 1 )) |
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if [ -z "$PKT_SIZE" ]; then |
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# NIC adds 4 bytes CRC |
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export PKT_SIZE=60 |
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info "Default packet size set to: set to: $PKT_SIZE bytes" |
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fi |
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if [ -z "$F_THREAD" ]; then |
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# First thread (F_THREAD) reference the zero indexed CPU number |
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export F_THREAD=0 |
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fi |
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if [ -z "$THREADS" ]; then |
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export THREADS=1 |
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fi |
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# default DELAY |
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[ -z "$DELAY" ] && export DELAY=0 # Zero means max speed |
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export L_THREAD=$(( THREADS + F_THREAD - 1 )) |
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if [ -z "$DEV" ]; then |
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usage |
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err 2 "Please specify output device" |
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fi |
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if [ -z "$DST_MAC" ]; then |
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warn "Missing destination MAC address" |
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fi |
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if [ -z "$DEST_IP" ]; then |
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warn "Missing destination IP address" |
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fi |
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if [ ! -d /proc/net/pktgen ]; then |
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info "Loading kernel module: pktgen" |
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modprobe pktgen |
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fi
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