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Commit 6fd980ac authored by John Fastabend's avatar John Fastabend Committed by David S. Miller
Browse files

net: samples: pktgen mode samples/tests for qdisc layer 



This adds samples for pktgen to use with new mode to inject pkts into
the qdisc layer. This also doubles as nice test cases to test any
patches against qdisc layer.

Signed-off-by: default avatarJohn Fastabend <john.r.fastabend@intel.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 0967f244

samples/pktgen/pktgen_bench_xmit_mode_queue_xmit.sh

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#!/bin/bash

#

# Benchmark script:

#  - developed for benchmarking egress qdisc path, derived (more

#    like cut'n'pasted) from ingress benchmark script.

#

# Script for injecting packets into egress qdisc path of the stack

# with pktgen "xmit_mode queue_xmit".

#

basedir=`dirname $0`

source ${basedir}/functions.sh

root_check_run_with_sudo "$@"



# Parameter parsing via include

source ${basedir}/parameters.sh

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

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



# Burst greater than 1 are invalid for queue_xmit mode

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

    err 1 "Bursting not supported for this mode"

fi



# Base Config

DELAY="0"        # Zero means max speed

COUNT="10000000" # Zero means indefinitely



# 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

    # The device name is extended with @name, using thread number to

    # make then unique, but any name will 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 of dev

    pg_set $dev "flag QUEUE_MAP_CPU"

    pg_set $dev "count $COUNT"

    pg_set $dev "pkt_size $PKT_SIZE"

    pg_set $dev "delay $DELAY"

    pg_set $dev "flag NO_TIMESTAMP"



    # Destination

    pg_set $dev "dst_mac $DST_MAC"

    pg_set $dev "dst $DEST_IP"



    # Inject packet into TX qdisc egress path of stack

    pg_set $dev "xmit_mode queue_xmit"

done



# start_run

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

pg_ctrl "start"

echo "Done" >&2



# Print results

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

    dev=${DEV}@${thread}

    echo "Device: $dev"

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

done