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 "$COUNT" ] && COUNT="0" # Zero means indefinitely 20if [ -n "$DEST_IP" ]; then 21 validate_addr $DEST_IP 22 read -r DST_MIN DST_MAX <<< $(parse_addr $DEST_IP) 23fi 24if [ -n "$DST_PORT" ]; then 25 read -r UDP_DST_MIN UDP_DST_MAX <<< $(parse_ports $DST_PORT) 26 validate_ports $UDP_DST_MIN $UDP_DST_MAX 27fi 28 29# NOTICE: Script specific settings 30# ======= 31# Limiting the number of concurrent flows ($FLOWS) 32# and also set how many packets each flow contains ($FLOWLEN) 33# 34[ -z "$FLOWS" ] && FLOWS="8000" 35[ -z "$FLOWLEN" ] && FLOWLEN="10" 36 37# Base Config 38DELAY="0" # Zero means max speed 39 40if [[ -n "$BURST" ]]; then 41 err 1 "Bursting not supported for this mode" 42fi 43 44# 198.18.0.0 / 198.19.255.255 45read -r SRC_MIN SRC_MAX <<< $(parse_addr 198.18.0.0/15) 46 47# General cleanup everything since last run 48pg_ctrl "reset" 49 50# Threads are specified with parameter -t value in $THREADS 51for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do 52 dev=${DEV}@${thread} 53 54 # Add remove all other devices and add_device $dev to thread 55 pg_thread $thread "rem_device_all" 56 pg_thread $thread "add_device" $dev 57 58 # Base config 59 pg_set $dev "flag QUEUE_MAP_CPU" 60 pg_set $dev "count $COUNT" 61 pg_set $dev "clone_skb $CLONE_SKB" 62 pg_set $dev "pkt_size $PKT_SIZE" 63 pg_set $dev "delay $DELAY" 64 pg_set $dev "flag NO_TIMESTAMP" 65 66 # Single destination 67 pg_set $dev "dst_mac $DST_MAC" 68 pg_set $dev "dst_min $DST_MIN" 69 pg_set $dev "dst_max $DST_MAX" 70 71 if [ -n "$DST_PORT" ]; then 72 # Single destination port or random port range 73 pg_set $dev "flag UDPDST_RND" 74 pg_set $dev "udp_dst_min $UDP_DST_MIN" 75 pg_set $dev "udp_dst_max $UDP_DST_MAX" 76 fi 77 78 # Randomize source IP-addresses 79 pg_set $dev "flag IPSRC_RND" 80 pg_set $dev "src_min $SRC_MIN" 81 pg_set $dev "src_max $SRC_MAX" 82 83 # Limit number of flows (max 65535) 84 pg_set $dev "flows $FLOWS" 85 # 86 # How many packets a flow will send, before flow "entry" is 87 # re-generated/setup. 88 pg_set $dev "flowlen $FLOWLEN" 89 # 90 # Flag FLOW_SEQ will cause $FLOWLEN packets from the same flow 91 # being send back-to-back, before next flow is selected 92 # incrementally. This helps lookup caches, and is more realistic. 93 # 94 pg_set $dev "flag FLOW_SEQ" 95 96done 97 98# Run if user hits control-c 99function print_result() { 100 # Print results 101 for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do 102 dev=${DEV}@${thread} 103 echo "Device: $dev" 104 cat /proc/net/pktgen/$dev | grep -A2 "Result:" 105 done 106} 107# trap keyboard interrupt (Ctrl-C) 108trap true SIGINT 109 110echo "Running... ctrl^C to stop" >&2 111pg_ctrl "start" 112 113print_result 114