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 ${basedir}/parameters.sh 15 16# Trap EXIT first 17trap_exit 18 19# Set some default params, if they didn't get set 20if [ -z "$DEST_IP" ]; then 21 [ -z "$IP6" ] && DEST_IP="198.18.0.42" || DEST_IP="FD00::1" 22fi 23[ -z "$DST_MAC" ] && DST_MAC="90:e2:ba:ff:ff:ff" 24[ -z "$CLONE_SKB" ] && CLONE_SKB="0" 25[ -z "$COUNT" ] && COUNT="0" # Zero means indefinitely 26if [ -n "$DEST_IP" ]; then 27 validate_addr${IP6} $DEST_IP 28 read -r DST_MIN DST_MAX <<< $(parse_addr${IP6} $DEST_IP) 29fi 30if [ -n "$DST_PORT" ]; then 31 read -r UDP_DST_MIN UDP_DST_MAX <<< $(parse_ports $DST_PORT) 32 validate_ports $UDP_DST_MIN $UDP_DST_MAX 33fi 34 35# NOTICE: Script specific settings 36# ======= 37# Limiting the number of concurrent flows ($FLOWS) 38# and also set how many packets each flow contains ($FLOWLEN) 39# 40[ -z "$FLOWS" ] && FLOWS="8000" 41[ -z "$FLOWLEN" ] && FLOWLEN="10" 42 43if [[ -n "$BURST" ]]; then 44 err 1 "Bursting not supported for this mode" 45fi 46 47# 198.18.0.0 / 198.19.255.255 48read -r SRC_MIN SRC_MAX <<< $(parse_addr 198.18.0.0/15) 49 50# General cleanup everything since last run 51[ -z "$APPEND" ] && pg_ctrl "reset" 52 53# Threads are specified with parameter -t value in $THREADS 54for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do 55 dev=${DEV}@${thread} 56 57 # Add remove all other devices and add_device $dev to thread 58 [ -z "$APPEND" ] && pg_thread $thread "rem_device_all" 59 pg_thread $thread "add_device" $dev 60 61 # Base config 62 pg_set $dev "flag QUEUE_MAP_CPU" 63 pg_set $dev "count $COUNT" 64 pg_set $dev "clone_skb $CLONE_SKB" 65 pg_set $dev "pkt_size $PKT_SIZE" 66 pg_set $dev "delay $DELAY" 67 pg_set $dev "flag NO_TIMESTAMP" 68 69 # Single destination 70 pg_set $dev "dst_mac $DST_MAC" 71 pg_set $dev "dst${IP6}_min $DST_MIN" 72 pg_set $dev "dst${IP6}_max $DST_MAX" 73 74 if [ -n "$DST_PORT" ]; then 75 # Single destination port or random port range 76 pg_set $dev "flag UDPDST_RND" 77 pg_set $dev "udp_dst_min $UDP_DST_MIN" 78 pg_set $dev "udp_dst_max $UDP_DST_MAX" 79 fi 80 81 [ ! -z "$UDP_CSUM" ] && pg_set $dev "flag UDPCSUM" 82 83 # Randomize source IP-addresses 84 pg_set $dev "flag IPSRC_RND" 85 pg_set $dev "src_min $SRC_MIN" 86 pg_set $dev "src_max $SRC_MAX" 87 88 # Limit number of flows (max 65535) 89 pg_set $dev "flows $FLOWS" 90 # 91 # How many packets a flow will send, before flow "entry" is 92 # re-generated/setup. 93 pg_set $dev "flowlen $FLOWLEN" 94 # 95 # Flag FLOW_SEQ will cause $FLOWLEN packets from the same flow 96 # being send back-to-back, before next flow is selected 97 # incrementally. This helps lookup caches, and is more realistic. 98 # 99 pg_set $dev "flag FLOW_SEQ" 100 101done 102 103# Run if user hits control-c 104function print_result() { 105 # Print results 106 for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do 107 dev=${DEV}@${thread} 108 echo "Device: $dev" 109 cat /proc/net/pktgen/$dev | grep -A2 "Result:" 110 done 111} 112# trap keyboard interrupt (Ctrl-C) 113trap true SIGINT 114 115if [ -z "$APPEND" ]; then 116 echo "Running... ctrl^C to stop" >&2 117 pg_ctrl "start" 118 119 print_result 120else 121 echo "Append mode: config done. Do more or use 'pg_ctrl start' to run" 122fi 123