diff options
| -rw-r--r-- | Documentation/networking/pktgen.txt | 29 | ||||
| -rwxr-xr-x | samples/pktgen/pktgen.conf-1-1 | 59 | ||||
| -rwxr-xr-x | samples/pktgen/pktgen_sample01_simple.sh | 71 |
3 files changed, 94 insertions, 65 deletions
diff --git a/Documentation/networking/pktgen.txt b/Documentation/networking/pktgen.txt index e7ae8b2939a8..f2f103368a6f 100644 --- a/Documentation/networking/pktgen.txt +++ b/Documentation/networking/pktgen.txt @@ -219,10 +219,30 @@ Examples: Sample scripts ============== -A collection of small tutorial scripts for pktgen is in the -samples/pktgen directory: +A collection of tutorial scripts and helpers for pktgen is in the +samples/pktgen directory. The helper parameters.sh file support easy +and consistant parameter parsing across the sample scripts. + +Usage example and help: + ./pktgen_sample01_simple.sh -i eth4 -m 00:1B:21:3C:9D:F8 -d 192.168.8.2 + +Usage: ./pktgen_sample01_simple.sh [-vx] -i ethX + -i : ($DEV) output interface/device (required) + -s : ($PKT_SIZE) packet size + -d : ($DEST_IP) destination IP + -m : ($DST_MAC) destination MAC-addr + -t : ($THREADS) threads to start + -c : ($SKB_CLONE) SKB clones send before alloc new SKB + -b : ($BURST) HW level bursting of SKBs + -v : ($VERBOSE) verbose + -x : ($DEBUG) debug + +The global variables being set are also listed. E.g. the required +interface/device parameter "-i" sets variable $DEV. Copy the +pktgen_sampleXX scripts and modify them to fit your own needs. + +The old scripts: -pktgen.conf-1-1 # 1 CPU 1 dev pktgen.conf-1-2 # 1 CPU 2 dev pktgen.conf-2-1 # 2 CPU's 1 dev pktgen.conf-2-2 # 2 CPU's 2 dev @@ -231,9 +251,6 @@ pktgen.conf-1-1-ip6 # 1 CPU 1 dev ipv6 pktgen.conf-1-1-ip6-rdos # 1 CPU 1 dev ipv6 w. route DoS pktgen.conf-1-1-flows # 1 CPU 1 dev multiple flows. -Run in shell: ./pktgen.conf-X-Y -This does all the setup including sending. - Interrupt affinity =================== diff --git a/samples/pktgen/pktgen.conf-1-1 b/samples/pktgen/pktgen.conf-1-1 deleted file mode 100755 index f91daad9e916..000000000000 --- a/samples/pktgen/pktgen.conf-1-1 +++ /dev/null @@ -1,59 +0,0 @@ -#!/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 means maximum speed. - -CLONE_SKB="clone_skb 1000000" -# 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" - pgset "dst 10.10.11.2" - 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 diff --git a/samples/pktgen/pktgen_sample01_simple.sh b/samples/pktgen/pktgen_sample01_simple.sh new file mode 100755 index 000000000000..8c9d318c221b --- /dev/null +++ b/samples/pktgen/pktgen_sample01_simple.sh @@ -0,0 +1,71 @@ +#!/bin/bash +# +# Simple example: +# * pktgen sending with single thread and single interface +# * flow variation via random UDP source port +# +basedir=`dirname $0` +source ${basedir}/functions.sh +root_check_run_with_sudo "$@" + +# Parameter parsing via include +# - go look in parameters.sh to see which setting are avail +# - required param is the interface "-i" stored in $DEV +source ${basedir}/parameters.sh +# +# Set some default params, if they didn't get set +[ -z "$DEST_IP" ] && DEST_IP="198.18.0.42" +[ -z "$CLONE_SKB" ] && CLONE_SKB="0" +# Example enforce param "-m" for dst_mac +[ -z "$DST_MAC" ] && usage && err 2 "Must specify -m dst_mac" + +# Base Config +DELAY="0" # Zero means max speed +COUNT="100000" # Zero means indefinitely + +# Flow variation random source port between min and max +UDP_MIN=9 +UDP_MAX=109 + +# General cleanup everything since last run +# (especially important if other threads were configured by other scripts) +pg_ctrl "reset" + +# Add remove all other devices and add_device $DEV to thread 0 +thread=0 +pg_thread $thread "rem_device_all" +pg_thread $thread "add_device" $DEV + +# How many packets to send (zero means indefinitely) +pg_set $DEV "count $COUNT" + +# Reduce alloc cost by sending same SKB many times +# - this obviously affects the randomness within the packet +pg_set $DEV "clone_skb $CLONE_SKB" + +# Set packet size +pg_set $DEV "pkt_size $PKT_SIZE" + +# Delay between packets (zero means max speed) +pg_set $DEV "delay $DELAY" + +# Flag example disabling timestamping +pg_set $DEV "flag NO_TIMESTAMP" + +# Destination +pg_set $DEV "dst_mac $DST_MAC" +pg_set $DEV "dst $DEST_IP" + +# Setup random UDP port src range +pg_set $DEV "flag UDPSRC_RND" +pg_set $DEV "udp_src_min $UDP_MIN" +pg_set $DEV "udp_src_max $UDP_MAX" + +# start_run +echo "Running... ctrl^C to stop" >&2 +pg_ctrl "start" +echo "Done" >&2 + +# Print results +echo "Result device: $DEV" +cat /proc/net/pktgen/$DEV |