Quelle pktgen_sample02_multiqueue.sh
Sprache: Shell
#!/bin/bash # SPDX-License-Identifier: GPL-2.0 # # Multiqueue: Using pktgen threads for sending on multiple CPUs # * adding devices to kernel threads # * notice the naming scheme for keeping device names unique # * nameing scheme: dev@thread_number # * flow variation via random UDP source port #
basedir=`dirname $0`
source ${basedir}/functions.sh
root_check_run_with_sudo "$@" # # Required param: -i dev in $DEV
source ${basedir}/parameters.sh
# Trap EXIT first
trap_exit
[ -z "$COUNT" ] && COUNT="100000"# Zero means indefinitely
# Base Config
[ -z "$CLONE_SKB" ] && CLONE_SKB="0"
# Flow variation random source port between min and max
UDP_SRC_MIN=9
UDP_SRC_MAX=109
# (example of setting default params in your script) if [ -z "$DEST_IP" ]; then
[ -z "$IP6" ] && DEST_IP="198.18.0.42" || DEST_IP="FD00::1" fi
[ -z "$DST_MAC" ] && DST_MAC="90:e2:ba:ff:ff:ff" if [ -n "$DEST_IP" ]; then
validate_addr${IP6} $DEST_IP
read -r DST_MIN DST_MAX <<< $(parse_addr${IP6} $DEST_IP) fi if [ -n "$DST_PORT" ]; then
read -r UDP_DST_MIN UDP_DST_MAX <<< $(parse_ports $DST_PORT)
validate_ports $UDP_DST_MIN $UDP_DST_MAX fi
# General cleanup everything since last run
[ -z "$APPEND" ] && pg_ctrl "reset"
# Threads are specified with parameter -t value in $THREADS for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do # The device name is extended with @name, using thread number to # make then unique, but any name will do.
dev=${DEV}@${thread}
# Add remove all other devices and add_device $dev to thread
[ -z "$APPEND" ] && pg_thread $thread "rem_device_all"
pg_thread $thread "add_device" $dev
# Notice config queue to map to cpu (mirrors smp_processor_id()) # It is beneficial to map IRQ /proc/irq/*/smp_affinity 1:1 to CPU number
pg_set $dev "flag QUEUE_MAP_CPU"
# Base config of dev
pg_set $dev "count $COUNT"
pg_set $dev "clone_skb $CLONE_SKB"
pg_set $dev "pkt_size $PKT_SIZE"
pg_set $dev "delay $DELAY"
# Flag example disabling timestamping
pg_set $dev "flag NO_TIMESTAMP"
if [ -n "$DST_PORT" ]; then # Single destination port or random port range
pg_set $dev "flag UDPDST_RND"
pg_set $dev "udp_dst_min $UDP_DST_MIN"
pg_set $dev "udp_dst_max $UDP_DST_MAX" fi
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