| #!/bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| # |
| # Script example for many flows testing |
| # |
| # Number of simultaneous flows limited by variable $FLOWS |
| # and number of packets per flow controlled by variable $FLOWLEN |
| # |
| basedir=`dirname $0` |
| source ${basedir}/functions.sh |
| root_check_run_with_sudo "$@" |
| |
| # Parameter parsing via include |
| source ${basedir}/parameters.sh |
| # Set some default params, if they didn't get set |
| [ -z "$DEST_IP" ] && DEST_IP="198.18.0.42" |
| [ -z "$DST_MAC" ] && DST_MAC="90:e2:ba:ff:ff:ff" |
| [ -z "$CLONE_SKB" ] && CLONE_SKB="0" |
| [ -z "$COUNT" ] && COUNT="0" # Zero means indefinitely |
| if [ -n "$DEST_IP" ]; then |
| validate_addr $DEST_IP |
| read -r DST_MIN DST_MAX <<< $(parse_addr $DEST_IP) |
| fi |
| if [ -n "$DST_PORT" ]; then |
| read -r UDP_DST_MIN UDP_DST_MAX <<< $(parse_ports $DST_PORT) |
| validate_ports $UDP_DST_MIN $UDP_DST_MAX |
| fi |
| |
| # NOTICE: Script specific settings |
| # ======= |
| # Limiting the number of concurrent flows ($FLOWS) |
| # and also set how many packets each flow contains ($FLOWLEN) |
| # |
| [ -z "$FLOWS" ] && FLOWS="8000" |
| [ -z "$FLOWLEN" ] && FLOWLEN="10" |
| |
| if [[ -n "$BURST" ]]; then |
| err 1 "Bursting not supported for this mode" |
| fi |
| |
| # 198.18.0.0 / 198.19.255.255 |
| read -r SRC_MIN SRC_MAX <<< $(parse_addr 198.18.0.0/15) |
| |
| # General cleanup everything since last run |
| [ -z "$APPEND" ] && pg_ctrl "reset" |
| |
| # Threads are specified with parameter -t value in $THREADS |
| for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do |
| dev=${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 |
| |
| # Base config |
| pg_set $dev "flag QUEUE_MAP_CPU" |
| pg_set $dev "count $COUNT" |
| pg_set $dev "clone_skb $CLONE_SKB" |
| pg_set $dev "pkt_size $PKT_SIZE" |
| pg_set $dev "delay $DELAY" |
| pg_set $dev "flag NO_TIMESTAMP" |
| |
| # Single destination |
| pg_set $dev "dst_mac $DST_MAC" |
| pg_set $dev "dst_min $DST_MIN" |
| pg_set $dev "dst_max $DST_MAX" |
| |
| if [ -n "$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 |
| |
| # Randomize source IP-addresses |
| pg_set $dev "flag IPSRC_RND" |
| pg_set $dev "src_min $SRC_MIN" |
| pg_set $dev "src_max $SRC_MAX" |
| |
| # Limit number of flows (max 65535) |
| pg_set $dev "flows $FLOWS" |
| # |
| # How many packets a flow will send, before flow "entry" is |
| # re-generated/setup. |
| pg_set $dev "flowlen $FLOWLEN" |
| # |
| # Flag FLOW_SEQ will cause $FLOWLEN packets from the same flow |
| # being send back-to-back, before next flow is selected |
| # incrementally. This helps lookup caches, and is more realistic. |
| # |
| pg_set $dev "flag FLOW_SEQ" |
| |
| done |
| |
| # Run if user hits control-c |
| function print_result() { |
| # Print results |
| for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do |
| dev=${DEV}@${thread} |
| echo "Device: $dev" |
| cat /proc/net/pktgen/$dev | grep -A2 "Result:" |
| done |
| } |
| # trap keyboard interrupt (Ctrl-C) |
| trap true SIGINT |
| |
| if [ -z "$APPEND" ]; then |
| echo "Running... ctrl^C to stop" >&2 |
| pg_ctrl "start" |
| |
| print_result |
| else |
| echo "Append mode: config done. Do more or use 'pg_ctrl start' to run" |
| fi |
