projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 6f094797 | 1 | #!/bin/bash |
| b2441318 | 2 | # SPDX-License-Identifier: GPL-2.0 |
| 6f094797 JDB |
3 | # |
| 4 | # Simple example: | |
| 5 | # * pktgen sending with single thread and single interface | |
| 6 | # * flow variation via random UDP source port | |
| 7 | # | |
| 8 | basedir=`dirname $0` | |
| 9 | source ${basedir}/functions.sh | |
| 10 | root_check_run_with_sudo "$@" | |
| 11 | ||
| 12 | # Parameter parsing via include | |
| 13 | # - go look in parameters.sh to see which setting are avail | |
| 14 | # - required param is the interface "-i" stored in $DEV | |
| 15 | source ${basedir}/parameters.sh | |
| 16 | # | |
| 17 | # Set some default params, if they didn't get set | |
| 0f06a678 MKL |
18 | if [ -z "$DEST_IP" ]; then |
| 19 | [ -z "$IP6" ] && DEST_IP="198.18.0.42" || DEST_IP="FD00::1" | |
| 20 | fi | |
| 6f094797 JDB |
21 | [ -z "$CLONE_SKB" ] && CLONE_SKB="0" |
| 22 | # Example enforce param "-m" for dst_mac | |
| 23 | [ -z "$DST_MAC" ] && usage && err 2 "Must specify -m dst_mac" | |
| 69137ea6 | 24 | [ -z "$COUNT" ] && COUNT="100000" # Zero means indefinitely |
| 6f094797 JDB |
25 | |
| 26 | # Base Config | |
| 27 | DELAY="0" # Zero means max speed | |
| 6f094797 JDB |
28 | |
| 29 | # Flow variation random source port between min and max | |
| 30 | UDP_MIN=9 | |
| 31 | UDP_MAX=109 | |
| 32 | ||
| 33 | # General cleanup everything since last run | |
| 34 | # (especially important if other threads were configured by other scripts) | |
| 35 | pg_ctrl "reset" | |
| 36 | ||
| 37 | # Add remove all other devices and add_device $DEV to thread 0 | |
| 38 | thread=0 | |
| 39 | pg_thread $thread "rem_device_all" | |
| 40 | pg_thread $thread "add_device" $DEV | |
| 41 | ||
| 42 | # How many packets to send (zero means indefinitely) | |
| 43 | pg_set $DEV "count $COUNT" | |
| 44 | ||
| 45 | # Reduce alloc cost by sending same SKB many times | |
| 46 | # - this obviously affects the randomness within the packet | |
| 47 | pg_set $DEV "clone_skb $CLONE_SKB" | |
| 48 | ||
| 49 | # Set packet size | |
| 50 | pg_set $DEV "pkt_size $PKT_SIZE" | |
| 51 | ||
| 52 | # Delay between packets (zero means max speed) | |
| 53 | pg_set $DEV "delay $DELAY" | |
| 54 | ||
| 55 | # Flag example disabling timestamping | |
| 56 | pg_set $DEV "flag NO_TIMESTAMP" | |
| 57 | ||
| 58 | # Destination | |
| 59 | pg_set $DEV "dst_mac $DST_MAC" | |
| 0f06a678 | 60 | pg_set $DEV "dst$IP6 $DEST_IP" |
| 6f094797 JDB |
61 | |
| 62 | # Setup random UDP port src range | |
| 63 | pg_set $DEV "flag UDPSRC_RND" | |
| 64 | pg_set $DEV "udp_src_min $UDP_MIN" | |
| 65 | pg_set $DEV "udp_src_max $UDP_MAX" | |
| 66 | ||
| 67 | # start_run | |
| 68 | echo "Running... ctrl^C to stop" >&2 | |
| 69 | pg_ctrl "start" | |
| 70 | echo "Done" >&2 | |
| 71 | ||
| 72 | # Print results | |
| 73 | echo "Result device: $DEV" | |
| 74 | cat /proc/net/pktgen/$DEV |