| #!/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 ${basedir}/parameters.sh | |
| # Trap EXIT first | |
| trap_exit | |
| # Set some default params, if they didn't get set | |
| if [ -z "$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" | |
| [ -z "$CLONE_SKB" ] && CLONE_SKB="0" | |
| [ -z "$COUNT" ] && COUNT="0" # Zero means indefinitely | |
| 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 $UDP_DST_MAX | |
| fi | |
| # NOTICE: Script specific settings | |
| # ======= | |
| # Limiting the number of concurrent flows ($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 $dev "dst${IP6}_min $DST_MIN" | |
| pg_set $dev "dst${IP6}_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 $UDP_DST_MAX" | |
| fi | |
| [ ! -z "$UDP_CSUM" ] && pg_set $dev "flag UDPCSUM" | |
| # 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 |