1#!/bin/bash 2# SPDX-License-Identifier: GPL-2.0 3# 4# Script example for many flows testing 5# 6# Number of simultaneous flows limited by variable $FLOWS 7# and number of packets per flow controlled by variable $FLOWLEN 8# 9basedir=`dirname $0` 10source ${basedir}/functions.sh 11root_check_run_with_sudo "$@" 12 13# Parameter parsing via include 14source ${basedir}/parameters.sh 15# Set some default params, if they didn't get set 16[ -z "$DEST_IP" ] && DEST_IP="198.18.0.42" 17[ -z "$DST_MAC" ] && DST_MAC="90:e2:ba:ff:ff:ff" 18[ -z "$CLONE_SKB" ] && CLONE_SKB="0" 19[ -z "$COUNT" ] && COUNT="0" # Zero means indefinitely 20 21# NOTICE: Script specific settings 22# ======= 23# Limiting the number of concurrent flows ($FLOWS) 24# and also set how many packets each flow contains ($FLOWLEN) 25# 26[ -z "$FLOWS" ] && FLOWS="8000" 27[ -z "$FLOWLEN" ] && FLOWLEN="10" 28 29# Base Config 30DELAY="0" # Zero means max speed 31 32if [[ -n "$BURST" ]]; then 33 err 1 "Bursting not supported for this mode" 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 <= $L_THREAD; thread++)); do 41 dev=${DEV}@${thread} 42 43 # Add remove all other devices and add_device $dev to thread 44 pg_thread $thread "rem_device_all" 45 pg_thread $thread "add_device" $dev 46 47 # Base config 48 pg_set $dev "flag QUEUE_MAP_CPU" 49 pg_set $dev "count $COUNT" 50 pg_set $dev "clone_skb $CLONE_SKB" 51 pg_set $dev "pkt_size $PKT_SIZE" 52 pg_set $dev "delay $DELAY" 53 pg_set $dev "flag NO_TIMESTAMP" 54 55 # Single destination 56 pg_set $dev "dst_mac $DST_MAC" 57 pg_set $dev "dst $DEST_IP" 58 59 # Randomize source IP-addresses 60 pg_set $dev "flag IPSRC_RND" 61 pg_set $dev "src_min 198.18.0.0" 62 pg_set $dev "src_max 198.19.255.255" 63 64 # Limit number of flows (max 65535) 65 pg_set $dev "flows $FLOWS" 66 # 67 # How many packets a flow will send, before flow "entry" is 68 # re-generated/setup. 69 pg_set $dev "flowlen $FLOWLEN" 70 # 71 # Flag FLOW_SEQ will cause $FLOWLEN packets from the same flow 72 # being send back-to-back, before next flow is selected 73 # incrementally. This helps lookup caches, and is more realistic. 74 # 75 pg_set $dev "flag FLOW_SEQ" 76 77done 78 79# Run if user hits control-c 80function print_result() { 81 # Print results 82 for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do 83 dev=${DEV}@${thread} 84 echo "Device: $dev" 85 cat /proc/net/pktgen/$dev | grep -A2 "Result:" 86 done 87} 88# trap keyboard interrupt (Ctrl-C) 89trap true SIGINT 90 91echo "Running... ctrl^C to stop" >&2 92pg_ctrl "start" 93 94print_result 95