1*4882a593Smuzhiyun#!/bin/bash 2*4882a593Smuzhiyun# SPDX-License-Identifier: GPL-2.0 3*4882a593Smuzhiyun# 4*4882a593Smuzhiyun# Multiqueue: Using pktgen threads for sending on multiple CPUs 5*4882a593Smuzhiyun# * adding devices to kernel threads 6*4882a593Smuzhiyun# * notice the naming scheme for keeping device names unique 7*4882a593Smuzhiyun# * nameing scheme: dev@thread_number 8*4882a593Smuzhiyun# * flow variation via random UDP source port 9*4882a593Smuzhiyun# 10*4882a593Smuzhiyunbasedir=`dirname $0` 11*4882a593Smuzhiyunsource ${basedir}/functions.sh 12*4882a593Smuzhiyunroot_check_run_with_sudo "$@" 13*4882a593Smuzhiyun# 14*4882a593Smuzhiyun# Required param: -i dev in $DEV 15*4882a593Smuzhiyunsource ${basedir}/parameters.sh 16*4882a593Smuzhiyun 17*4882a593Smuzhiyun[ -z "$COUNT" ] && COUNT="100000" # Zero means indefinitely 18*4882a593Smuzhiyun 19*4882a593Smuzhiyun# Base Config 20*4882a593SmuzhiyunDELAY="0" # Zero means max speed 21*4882a593Smuzhiyun[ -z "$CLONE_SKB" ] && CLONE_SKB="0" 22*4882a593Smuzhiyun 23*4882a593Smuzhiyun# Flow variation random source port between min and max 24*4882a593SmuzhiyunUDP_SRC_MIN=9 25*4882a593SmuzhiyunUDP_SRC_MAX=109 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun# (example of setting default params in your script) 28*4882a593Smuzhiyunif [ -z "$DEST_IP" ]; then 29*4882a593Smuzhiyun [ -z "$IP6" ] && DEST_IP="198.18.0.42" || DEST_IP="FD00::1" 30*4882a593Smuzhiyunfi 31*4882a593Smuzhiyun[ -z "$DST_MAC" ] && DST_MAC="90:e2:ba:ff:ff:ff" 32*4882a593Smuzhiyunif [ -n "$DEST_IP" ]; then 33*4882a593Smuzhiyun validate_addr${IP6} $DEST_IP 34*4882a593Smuzhiyun read -r DST_MIN DST_MAX <<< $(parse_addr${IP6} $DEST_IP) 35*4882a593Smuzhiyunfi 36*4882a593Smuzhiyunif [ -n "$DST_PORT" ]; then 37*4882a593Smuzhiyun read -r UDP_DST_MIN UDP_DST_MAX <<< $(parse_ports $DST_PORT) 38*4882a593Smuzhiyun validate_ports $UDP_DST_MIN $UDP_DST_MAX 39*4882a593Smuzhiyunfi 40*4882a593Smuzhiyun 41*4882a593Smuzhiyun# General cleanup everything since last run 42*4882a593Smuzhiyunpg_ctrl "reset" 43*4882a593Smuzhiyun 44*4882a593Smuzhiyun# Threads are specified with parameter -t value in $THREADS 45*4882a593Smuzhiyunfor ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do 46*4882a593Smuzhiyun # The device name is extended with @name, using thread number to 47*4882a593Smuzhiyun # make then unique, but any name will do. 48*4882a593Smuzhiyun dev=${DEV}@${thread} 49*4882a593Smuzhiyun 50*4882a593Smuzhiyun # Add remove all other devices and add_device $dev to thread 51*4882a593Smuzhiyun pg_thread $thread "rem_device_all" 52*4882a593Smuzhiyun pg_thread $thread "add_device" $dev 53*4882a593Smuzhiyun 54*4882a593Smuzhiyun # Notice config queue to map to cpu (mirrors smp_processor_id()) 55*4882a593Smuzhiyun # It is beneficial to map IRQ /proc/irq/*/smp_affinity 1:1 to CPU number 56*4882a593Smuzhiyun pg_set $dev "flag QUEUE_MAP_CPU" 57*4882a593Smuzhiyun 58*4882a593Smuzhiyun # Base config of dev 59*4882a593Smuzhiyun pg_set $dev "count $COUNT" 60*4882a593Smuzhiyun pg_set $dev "clone_skb $CLONE_SKB" 61*4882a593Smuzhiyun pg_set $dev "pkt_size $PKT_SIZE" 62*4882a593Smuzhiyun pg_set $dev "delay $DELAY" 63*4882a593Smuzhiyun 64*4882a593Smuzhiyun # Flag example disabling timestamping 65*4882a593Smuzhiyun pg_set $dev "flag NO_TIMESTAMP" 66*4882a593Smuzhiyun 67*4882a593Smuzhiyun # Destination 68*4882a593Smuzhiyun pg_set $dev "dst_mac $DST_MAC" 69*4882a593Smuzhiyun pg_set $dev "dst${IP6}_min $DST_MIN" 70*4882a593Smuzhiyun pg_set $dev "dst${IP6}_max $DST_MAX" 71*4882a593Smuzhiyun 72*4882a593Smuzhiyun if [ -n "$DST_PORT" ]; then 73*4882a593Smuzhiyun # Single destination port or random port range 74*4882a593Smuzhiyun pg_set $dev "flag UDPDST_RND" 75*4882a593Smuzhiyun pg_set $dev "udp_dst_min $UDP_DST_MIN" 76*4882a593Smuzhiyun pg_set $dev "udp_dst_max $UDP_DST_MAX" 77*4882a593Smuzhiyun fi 78*4882a593Smuzhiyun 79*4882a593Smuzhiyun # Setup random UDP port src range 80*4882a593Smuzhiyun pg_set $dev "flag UDPSRC_RND" 81*4882a593Smuzhiyun pg_set $dev "udp_src_min $UDP_SRC_MIN" 82*4882a593Smuzhiyun pg_set $dev "udp_src_max $UDP_SRC_MAX" 83*4882a593Smuzhiyundone 84*4882a593Smuzhiyun 85*4882a593Smuzhiyun# start_run 86*4882a593Smuzhiyunecho "Running... ctrl^C to stop" >&2 87*4882a593Smuzhiyunpg_ctrl "start" 88*4882a593Smuzhiyunecho "Done" >&2 89*4882a593Smuzhiyun 90*4882a593Smuzhiyun# Print results 91*4882a593Smuzhiyunfor ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do 92*4882a593Smuzhiyun dev=${DEV}@${thread} 93*4882a593Smuzhiyun echo "Device: $dev" 94*4882a593Smuzhiyun cat /proc/net/pktgen/$dev | grep -A2 "Result:" 95*4882a593Smuzhiyundone 96