Jesper Dangaard Brouer | 282fb58 | 2015-05-21 12:17:48 +0200 | [diff] [blame] | 1 | #!/bin/bash |
| 2 | # |
| 3 | # Multiqueue: Using pktgen threads for sending on multiple CPUs |
| 4 | # * adding devices to kernel threads |
| 5 | # * notice the naming scheme for keeping device names unique |
| 6 | # * nameing scheme: dev@thread_number |
| 7 | # * flow variation via random UDP source port |
| 8 | # |
| 9 | basedir=`dirname $0` |
| 10 | source ${basedir}/functions.sh |
| 11 | root_check_run_with_sudo "$@" |
| 12 | # |
| 13 | # Required param: -i dev in $DEV |
| 14 | source ${basedir}/parameters.sh |
| 15 | |
| 16 | # Base Config |
| 17 | DELAY="0" # Zero means max speed |
| 18 | COUNT="100000" # Zero means indefinitely |
| 19 | [ -z "$CLONE_SKB" ] && CLONE_SKB="0" |
| 20 | |
| 21 | # Flow variation random source port between min and max |
| 22 | UDP_MIN=9 |
| 23 | UDP_MAX=109 |
| 24 | |
| 25 | # (example of setting default params in your script) |
| 26 | [ -z "$DEST_IP" ] && DEST_IP="198.18.0.42" |
| 27 | [ -z "$DST_MAC" ] && DST_MAC="90:e2:ba:ff:ff:ff" |
| 28 | |
| 29 | # General cleanup everything since last run |
| 30 | pg_ctrl "reset" |
| 31 | |
| 32 | # Threads are specified with parameter -t value in $THREADS |
| 33 | for ((thread = 0; thread < $THREADS; thread++)); do |
| 34 | # The device name is extended with @name, using thread number to |
| 35 | # make then unique, but any name will do. |
| 36 | dev=${DEV}@${thread} |
| 37 | |
| 38 | # Add remove all other devices and add_device $dev to thread |
| 39 | pg_thread $thread "rem_device_all" |
| 40 | pg_thread $thread "add_device" $dev |
| 41 | |
| 42 | # Notice config queue to map to cpu (mirrors smp_processor_id()) |
| 43 | # It is beneficial to map IRQ /proc/irq/*/smp_affinity 1:1 to CPU number |
| 44 | pg_set $dev "flag QUEUE_MAP_CPU" |
| 45 | |
| 46 | # Base config of dev |
| 47 | pg_set $dev "count $COUNT" |
| 48 | pg_set $dev "clone_skb $CLONE_SKB" |
| 49 | pg_set $dev "pkt_size $PKT_SIZE" |
| 50 | pg_set $dev "delay $DELAY" |
| 51 | |
| 52 | # Flag example disabling timestamping |
| 53 | pg_set $dev "flag NO_TIMESTAMP" |
| 54 | |
| 55 | # Destination |
| 56 | pg_set $dev "dst_mac $DST_MAC" |
| 57 | pg_set $dev "dst $DEST_IP" |
| 58 | |
| 59 | # Setup random UDP port src range |
| 60 | pg_set $dev "flag UDPSRC_RND" |
| 61 | pg_set $dev "udp_src_min $UDP_MIN" |
| 62 | pg_set $dev "udp_src_max $UDP_MAX" |
| 63 | done |
| 64 | |
| 65 | # start_run |
| 66 | echo "Running... ctrl^C to stop" >&2 |
| 67 | pg_ctrl "start" |
| 68 | echo "Done" >&2 |
| 69 | |
| 70 | # Print results |
| 71 | for ((thread = 0; thread < $THREADS; thread++)); do |
| 72 | dev=${DEV}@${thread} |
| 73 | echo "Device: $dev" |
| 74 | cat /proc/net/pktgen/$dev | grep -A2 "Result:" |
| 75 | done |