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 ${basedir}/parameters.sh 15# Set some default params, if they didn't get set 16if [ -z "$DEST_IP" ]; then 17 [ -z "$IP6" ] && DEST_IP="198.18.0.42" || DEST_IP="FD00::1" 18fi 19[ -z "$DST_MAC" ] && DST_MAC="90:e2:ba:ff:ff:ff" 20[ -z "$CLONE_SKB" ] && CLONE_SKB="0" 21[ -z "$COUNT" ] && COUNT="0" # Zero means indefinitely 22if [ -n "$DEST_IP" ]; then 23 validate_addr${IP6} $DEST_IP 24 read -r DST_MIN DST_MAX <<< $(parse_addr${IP6} $DEST_IP) 25fi 26if [ -n "$DST_PORT" ]; then 27 read -r UDP_DST_MIN UDP_DST_MAX <<< $(parse_ports $DST_PORT) 28 validate_ports $UDP_DST_MIN $UDP_DST_MAX 29fi 30 31# NOTICE: Script specific settings 32# ======= 33# Limiting the number of concurrent flows ($FLOWS) 34# and also set how many packets each flow contains ($FLOWLEN) 35# 36[ -z "$FLOWS" ] && FLOWS="8000" 37[ -z "$FLOWLEN" ] && FLOWLEN="10" 38 39if [[ -n "$BURST" ]]; then 40 err 1 "Bursting not supported for this mode" 41fi 42 43# 198.18.0.0 / 198.19.255.255 44read -r SRC_MIN SRC_MAX <<< $(parse_addr 198.18.0.0/15) 45 46# General cleanup everything since last run 47[ -z "$APPEND" ] && pg_ctrl "reset" 48 49# Threads are specified with parameter -t value in $THREADS 50for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do 51 dev=${DEV}@${thread} 52 53 # Add remove all other devices and add_device $dev to thread 54 [ -z "$APPEND" ] && pg_thread $thread "rem_device_all" 55 pg_thread $thread "add_device" $dev 56 57 # Base config 58 pg_set $dev "flag QUEUE_MAP_CPU" 59 pg_set $dev "count $COUNT" 60 pg_set $dev "clone_skb $CLONE_SKB" 61 pg_set $dev "pkt_size $PKT_SIZE" 62 pg_set $dev "delay $DELAY" 63 pg_set $dev "flag NO_TIMESTAMP" 64 65 # Single destination 66 pg_set $dev "dst_mac $DST_MAC" 67 pg_set $dev "dst${IP6}_min $DST_MIN" 68 pg_set $dev "dst${IP6}_max $DST_MAX" 69 70 if [ -n "$DST_PORT" ]; then 71 # Single destination port or random port range 72 pg_set $dev "flag UDPDST_RND" 73 pg_set $dev "udp_dst_min $UDP_DST_MIN" 74 pg_set $dev "udp_dst_max $UDP_DST_MAX" 75 fi 76 77 [ ! -z "$UDP_CSUM" ] && pg_set $dev "flag UDPCSUM" 78 79 # Randomize source IP-addresses 80 pg_set $dev "flag IPSRC_RND" 81 pg_set $dev "src_min $SRC_MIN" 82 pg_set $dev "src_max $SRC_MAX" 83 84 # Limit number of flows (max 65535) 85 pg_set $dev "flows $FLOWS" 86 # 87 # How many packets a flow will send, before flow "entry" is 88 # re-generated/setup. 89 pg_set $dev "flowlen $FLOWLEN" 90 # 91 # Flag FLOW_SEQ will cause $FLOWLEN packets from the same flow 92 # being send back-to-back, before next flow is selected 93 # incrementally. This helps lookup caches, and is more realistic. 94 # 95 pg_set $dev "flag FLOW_SEQ" 96 97done 98 99# Run if user hits control-c 100function print_result() { 101 # Print results 102 for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do 103 dev=${DEV}@${thread} 104 echo "Device: $dev" 105 cat /proc/net/pktgen/$dev | grep -A2 "Result:" 106 done 107} 108# trap keyboard interrupt (Ctrl-C) 109trap true SIGINT 110 111if [ -z "$APPEND" ]; then 112 echo "Running... ctrl^C to stop" >&2 113 pg_ctrl "start" 114 115 print_result 116else 117 echo "Append mode: config done. Do more or use 'pg_ctrl start' to run" 118fi 119