1*4882a593Smuzhiyun#!/bin/bash 2*4882a593Smuzhiyun# SPDX-License-Identifier: GPL-2.0 3*4882a593Smuzhiyun# 4*4882a593Smuzhiyun# Script will generate one flow per thread (-t N) 5*4882a593Smuzhiyun# - Same destination IP 6*4882a593Smuzhiyun# - Fake source IPs for each flow (fixed based on thread number) 7*4882a593Smuzhiyun# 8*4882a593Smuzhiyun# Useful for scale testing on receiver, to see whether silo'ing flows 9*4882a593Smuzhiyun# works and scales. For optimal scalability (on receiver) each 10*4882a593Smuzhiyun# separate-flow should not access shared variables/data. This script 11*4882a593Smuzhiyun# helps magnify any of these scaling issues by overloading the receiver. 12*4882a593Smuzhiyun# 13*4882a593Smuzhiyunbasedir=`dirname $0` 14*4882a593Smuzhiyunsource ${basedir}/functions.sh 15*4882a593Smuzhiyunroot_check_run_with_sudo "$@" 16*4882a593Smuzhiyun 17*4882a593Smuzhiyun# Parameter parsing via include 18*4882a593Smuzhiyunsource ${basedir}/parameters.sh 19*4882a593Smuzhiyun# Set some default params, if they didn't get set 20*4882a593Smuzhiyunif [ -z "$DEST_IP" ]; then 21*4882a593Smuzhiyun [ -z "$IP6" ] && DEST_IP="198.18.0.42" || DEST_IP="FD00::1" 22*4882a593Smuzhiyunfi 23*4882a593Smuzhiyun[ -z "$DST_MAC" ] && DST_MAC="90:e2:ba:ff:ff:ff" 24*4882a593Smuzhiyun[ -z "$CLONE_SKB" ] && CLONE_SKB="0" 25*4882a593Smuzhiyun[ -z "$BURST" ] && BURST=32 26*4882a593Smuzhiyun[ -z "$COUNT" ] && COUNT="0" # Zero means indefinitely 27*4882a593Smuzhiyunif [ -n "$DEST_IP" ]; then 28*4882a593Smuzhiyun validate_addr${IP6} $DEST_IP 29*4882a593Smuzhiyun read -r DST_MIN DST_MAX <<< $(parse_addr${IP6} $DEST_IP) 30*4882a593Smuzhiyunfi 31*4882a593Smuzhiyunif [ -n "$DST_PORT" ]; then 32*4882a593Smuzhiyun read -r UDP_DST_MIN UDP_DST_MAX <<< $(parse_ports $DST_PORT) 33*4882a593Smuzhiyun validate_ports $UDP_DST_MIN $UDP_DST_MAX 34*4882a593Smuzhiyunfi 35*4882a593Smuzhiyun 36*4882a593Smuzhiyun# Base Config 37*4882a593SmuzhiyunDELAY="0" # Zero means max speed 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun# General cleanup everything since last run 40*4882a593Smuzhiyunpg_ctrl "reset" 41*4882a593Smuzhiyun 42*4882a593Smuzhiyun# Threads are specified with parameter -t value in $THREADS 43*4882a593Smuzhiyunfor ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do 44*4882a593Smuzhiyun dev=${DEV}@${thread} 45*4882a593Smuzhiyun 46*4882a593Smuzhiyun # Add remove all other devices and add_device $dev to thread 47*4882a593Smuzhiyun pg_thread $thread "rem_device_all" 48*4882a593Smuzhiyun pg_thread $thread "add_device" $dev 49*4882a593Smuzhiyun 50*4882a593Smuzhiyun # Base config 51*4882a593Smuzhiyun pg_set $dev "flag QUEUE_MAP_CPU" 52*4882a593Smuzhiyun pg_set $dev "count $COUNT" 53*4882a593Smuzhiyun pg_set $dev "clone_skb $CLONE_SKB" 54*4882a593Smuzhiyun pg_set $dev "pkt_size $PKT_SIZE" 55*4882a593Smuzhiyun pg_set $dev "delay $DELAY" 56*4882a593Smuzhiyun pg_set $dev "flag NO_TIMESTAMP" 57*4882a593Smuzhiyun 58*4882a593Smuzhiyun # Single destination 59*4882a593Smuzhiyun pg_set $dev "dst_mac $DST_MAC" 60*4882a593Smuzhiyun pg_set $dev "dst${IP6}_min $DST_MIN" 61*4882a593Smuzhiyun pg_set $dev "dst${IP6}_max $DST_MAX" 62*4882a593Smuzhiyun 63*4882a593Smuzhiyun if [ -n "$DST_PORT" ]; then 64*4882a593Smuzhiyun # Single destination port or random port range 65*4882a593Smuzhiyun pg_set $dev "flag UDPDST_RND" 66*4882a593Smuzhiyun pg_set $dev "udp_dst_min $UDP_DST_MIN" 67*4882a593Smuzhiyun pg_set $dev "udp_dst_max $UDP_DST_MAX" 68*4882a593Smuzhiyun fi 69*4882a593Smuzhiyun 70*4882a593Smuzhiyun # Setup source IP-addresses based on thread number 71*4882a593Smuzhiyun pg_set $dev "src_min 198.18.$((thread+1)).1" 72*4882a593Smuzhiyun pg_set $dev "src_max 198.18.$((thread+1)).1" 73*4882a593Smuzhiyun 74*4882a593Smuzhiyun # Setup burst, for easy testing -b 0 disable bursting 75*4882a593Smuzhiyun # (internally in pktgen default and minimum burst=1) 76*4882a593Smuzhiyun if [[ ${BURST} -ne 0 ]]; then 77*4882a593Smuzhiyun pg_set $dev "burst $BURST" 78*4882a593Smuzhiyun else 79*4882a593Smuzhiyun info "$dev: Not using burst" 80*4882a593Smuzhiyun fi 81*4882a593Smuzhiyun 82*4882a593Smuzhiyundone 83*4882a593Smuzhiyun 84*4882a593Smuzhiyun# Run if user hits control-c 85*4882a593Smuzhiyunfunction print_result() { 86*4882a593Smuzhiyun # Print results 87*4882a593Smuzhiyun for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do 88*4882a593Smuzhiyun dev=${DEV}@${thread} 89*4882a593Smuzhiyun echo "Device: $dev" 90*4882a593Smuzhiyun cat /proc/net/pktgen/$dev | grep -A2 "Result:" 91*4882a593Smuzhiyun done 92*4882a593Smuzhiyun} 93*4882a593Smuzhiyun# trap keyboard interrupt (Ctrl-C) 94*4882a593Smuzhiyuntrap true SIGINT 95*4882a593Smuzhiyun 96*4882a593Smuzhiyunecho "Running... ctrl^C to stop" >&2 97*4882a593Smuzhiyunpg_ctrl "start" 98*4882a593Smuzhiyun 99*4882a593Smuzhiyunprint_result 100