1#!/bin/bash 2# SPDX-License-Identifier: GPL-2.0 3# 4# Benchmark script: 5# - developed for benchmarking egress qdisc path, derived (more 6# like cut'n'pasted) from ingress benchmark script. 7# 8# Script for injecting packets into egress qdisc path of the stack 9# with pktgen "xmit_mode queue_xmit". 10# 11basedir=`dirname $0` 12source ${basedir}/functions.sh 13root_check_run_with_sudo "$@" 14 15# Parameter parsing via include 16source ${basedir}/parameters.sh 17if [ -z "$DEST_IP" ]; then 18 [ -z "$IP6" ] && DEST_IP="198.18.0.42" || DEST_IP="FD00::1" 19fi 20[ -z "$DST_MAC" ] && DST_MAC="90:e2:ba:ff:ff:ff" 21 22# Burst greater than 1 are invalid for queue_xmit mode 23if [[ -n "$BURST" ]]; then 24 err 1 "Bursting not supported for this mode" 25fi 26[ -z "$COUNT" ] && COUNT="10000000" # Zero means indefinitely 27if [ -n "$DEST_IP" ]; then 28 validate_addr${IP6} $DEST_IP 29 read -r DST_MIN DST_MAX <<< $(parse_addr${IP6} $DEST_IP) 30fi 31if [ -n "$DST_PORT" ]; then 32 read -r UDP_DST_MIN UDP_DST_MAX <<< $(parse_ports $DST_PORT) 33 validate_ports $UDP_DST_MIN $UDP_DST_MAX 34fi 35 36# General cleanup everything since last run 37pg_ctrl "reset" 38 39# Threads are specified with parameter -t value in $THREADS 40for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do 41 # The device name is extended with @name, using thread number to 42 # make then unique, but any name will do. 43 dev=${DEV}@${thread} 44 45 # Add remove all other devices and add_device $dev to thread 46 pg_thread $thread "rem_device_all" 47 pg_thread $thread "add_device" $dev 48 49 # Base config of dev 50 pg_set $dev "flag QUEUE_MAP_CPU" 51 pg_set $dev "count $COUNT" 52 pg_set $dev "pkt_size $PKT_SIZE" 53 pg_set $dev "delay $DELAY" 54 pg_set $dev "flag NO_TIMESTAMP" 55 56 # Destination 57 pg_set $dev "dst_mac $DST_MAC" 58 pg_set $dev "dst${IP6}_min $DST_MIN" 59 pg_set $dev "dst${IP6}_max $DST_MAX" 60 61 if [ -n "$DST_PORT" ]; then 62 # Single destination port or random port range 63 pg_set $dev "flag UDPDST_RND" 64 pg_set $dev "udp_dst_min $UDP_DST_MIN" 65 pg_set $dev "udp_dst_max $UDP_DST_MAX" 66 fi 67 68 # Inject packet into TX qdisc egress path of stack 69 pg_set $dev "xmit_mode queue_xmit" 70done 71 72# Run if user hits control-c 73function print_result { 74 # Print results 75 for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do 76 dev=${DEV}@${thread} 77 echo "Device: $dev" 78 cat /proc/net/pktgen/$dev | grep -A2 "Result:" 79 done 80} 81# trap keyboard interrupt (Ctrl-C) 82trap true SIGINT 83 84# start_run 85echo "Running... ctrl^C to stop" >&2 86pg_ctrl "start" 87echo "Done" >&2 88 89print_result 90