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 ${basedir}/parameters.sh 17 18# Trap EXIT first 19trap_exit 20 21if [ -z "$DEST_IP" ]; then 22 [ -z "$IP6" ] && DEST_IP="198.18.0.42" || DEST_IP="FD00::1" 23fi 24[ -z "$DST_MAC" ] && DST_MAC="90:e2:ba:ff:ff:ff" 25 26# Burst greater than 1 are invalid for queue_xmit mode 27if [[ -n "$BURST" ]]; then 28 err 1 "Bursting not supported for this mode" 29fi 30[ -z "$COUNT" ] && COUNT="10000000" # Zero means indefinitely 31if [ -n "$DEST_IP" ]; then 32 validate_addr${IP6} $DEST_IP 33 read -r DST_MIN DST_MAX <<< $(parse_addr${IP6} $DEST_IP) 34fi 35if [ -n "$DST_PORT" ]; then 36 read -r UDP_DST_MIN UDP_DST_MAX <<< $(parse_ports $DST_PORT) 37 validate_ports $UDP_DST_MIN $UDP_DST_MAX 38fi 39 40# General cleanup everything since last run 41pg_ctrl "reset" 42 43# Threads are specified with parameter -t value in $THREADS 44for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do 45 # The device name is extended with @name, using thread number to 46 # make then unique, but any name will do. 47 dev=${DEV}@${thread} 48 49 # Add remove all other devices and add_device $dev to thread 50 pg_thread $thread "rem_device_all" 51 pg_thread $thread "add_device" $dev 52 53 # Base config of dev 54 pg_set $dev "flag QUEUE_MAP_CPU" 55 pg_set $dev "count $COUNT" 56 pg_set $dev "pkt_size $PKT_SIZE" 57 pg_set $dev "delay $DELAY" 58 pg_set $dev "flag NO_TIMESTAMP" 59 60 # Destination 61 pg_set $dev "dst_mac $DST_MAC" 62 pg_set $dev "dst${IP6}_min $DST_MIN" 63 pg_set $dev "dst${IP6}_max $DST_MAX" 64 65 if [ -n "$DST_PORT" ]; then 66 # Single destination port or random port range 67 pg_set $dev "flag UDPDST_RND" 68 pg_set $dev "udp_dst_min $UDP_DST_MIN" 69 pg_set $dev "udp_dst_max $UDP_DST_MAX" 70 fi 71 72 # Inject packet into TX qdisc egress path of stack 73 pg_set $dev "xmit_mode queue_xmit" 74done 75 76# Run if user hits control-c 77function print_result { 78 # Print results 79 for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do 80 dev=${DEV}@${thread} 81 echo "Device: $dev" 82 cat /proc/net/pktgen/$dev | grep -A2 "Result:" 83 done 84} 85# trap keyboard interrupt (Ctrl-C) 86trap true SIGINT 87 88# start_run 89echo "Running... ctrl^C to stop" >&2 90pg_ctrl "start" 91echo "Done" >&2 92 93print_result 94