name : pktgen_sample04_many_flows.sh #!/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