pktgen: add sample script pktgen_sample04_many_flows.sh

#!/bin/bash

#modprobe pktgen

function pgset() {

    local result

    echo $1 > $PGDEV

    result=`cat $PGDEV | fgrep "Result: OK:"`

    if [ "$result" = "" ]; then

         cat $PGDEV | fgrep Result:

    fi

}

# Config Start Here -----------------------------------------------------------

# thread config

# Each CPU has its own thread. One CPU example. We add eth1.

PGDEV=/proc/net/pktgen/kpktgend_0

  echo "Removing all devices"

 pgset "rem_device_all"

  echo "Adding eth1"

 pgset "add_device eth1"

# device config

# delay 0

# We need to do alloc for every skb since we cannot clone here.

CLONE_SKB="clone_skb 0"

# NIC adds 4 bytes CRC

PKT_SIZE="pkt_size 60"

# COUNT 0 means forever

#COUNT="count 0"

COUNT="count 10000000"

DELAY="delay 0"

PGDEV=/proc/net/pktgen/eth1

  echo "Configuring $PGDEV"

 pgset "$COUNT"

 pgset "$CLONE_SKB"

 pgset "$PKT_SIZE"

 pgset "$DELAY"

 # Random address with in the min-max range

 pgset "flag IPDST_RND"

 pgset "dst_min 10.0.0.0"

 pgset "dst_max 10.255.255.255"

 # 8k Concurrent flows at 4 pkts

 pgset "flows 8192"

 pgset "flowlen 4"

 pgset "dst_mac  00:04:23:08:91:dc"

# Time to run

PGDEV=/proc/net/pktgen/pgctrl

 echo "Running... ctrl^C to stop"

 trap true INT

 pgset "start"

 echo "Done"

 cat /proc/net/pktgen/eth1

#!/bin/bash

#

# Script example for many flows testing

#

# Number of simultaneous flows limited by variable $FLOWS

# and number of packets per flow controlled by variable $FLOWLEN

#

basedir=`dirname $0`

source ${basedir}/functions.sh

root_check_run_with_sudo "$@"

# Parameter parsing via include

source ${basedir}/parameters.sh

# Set some default params, if they didn't get set

[ -z "$DEST_IP" ]   && DEST_IP="198.18.0.42"

[ -z "$DST_MAC" ]   && DST_MAC="90:e2:ba:ff:ff:ff"

[ -z "$CLONE_SKB" ] && CLONE_SKB="0"

# NOTICE:  Script specific settings

# =======

# Limiting the number of concurrent flows ($FLOWS)

# and also set how many packets each flow contains ($FLOWLEN)

#

[ -z "$FLOWS" ]     && FLOWS="8000"

[ -z "$FLOWLEN" ]   && FLOWLEN="10"

# Base Config

DELAY="0"  # Zero means max speed

COUNT="0"  # Zero means indefinitely

if [[ -n "$BURST" ]]; then

    err 1 "Bursting not supported for this mode"

fi

# General cleanup everything since last run

pg_ctrl "reset"

# Threads are specified with parameter -t value in $THREADS

for ((thread = 0; thread < $THREADS; thread++)); do

    dev=${DEV}@${thread}

    # Add remove all other devices and add_device $dev to thread

    pg_thread $thread "rem_device_all"

    pg_thread $thread "add_device" $dev

    # Base config

    pg_set $dev "flag QUEUE_MAP_CPU"

    pg_set $dev "count $COUNT"

    pg_set $dev "clone_skb $CLONE_SKB"

    pg_set $dev "pkt_size $PKT_SIZE"

    pg_set $dev "delay $DELAY"

    pg_set $dev "flag NO_TIMESTAMP"

    # Single destination

    pg_set $dev "dst_mac $DST_MAC"

    pg_set $dev "dst $DEST_IP"

    # Randomize source IP-addresses

    pg_set $dev "flag IPSRC_RND"

    pg_set $dev "src_min 198.18.0.0"

    pg_set $dev "src_max 198.19.255.255"

    # Limit number of flows (max 65535)

    pg_set $dev "flows $FLOWS"

    #

    # How many packets a flow will send, before flow "entry" is

    # re-generated/setup.

    pg_set $dev "flowlen $FLOWLEN"

    #

    # Flag FLOW_SEQ will cause $FLOWLEN packets from the same flow

    # being send back-to-back, before next flow is selected

    # incrementally.  This helps lookup caches, and is more realistic.

    #

    pg_set $dev "flag FLOW_SEQ"

done

# Run if user hits control-c

function print_result() {

    # Print results

    for ((thread = 0; thread < $THREADS; thread++)); do

	dev=${DEV}@${thread}

	echo "Device: $dev"

	cat /proc/net/pktgen/$dev | grep -A2 "Result:"

    done

}

# trap keyboard interrupt (Ctrl-C)

trap true SIGINT

echo "Running... ctrl^C to stop" >&2

pg_ctrl "start"

print_result