1#!/bin/bash
 2# SPDX-License-Identifier: GPL-2.0
 3#
 4# Script will generate one flow per thread (-t N)
 5#  - Same destination IP
 6#  - Fake source IPs for each flow (fixed based on thread number)
 7#
 8# Useful for scale testing on receiver, to see whether silo'ing flows
 9# works and scales.  For optimal scalability (on receiver) each
10# separate-flow should not access shared variables/data. This script
11# helps magnify any of these scaling issues by overloading the receiver.
12#
13basedir=`dirname $0`
14source ${basedir}/functions.sh
15root_check_run_with_sudo "$@"
16
17# Parameter parsing via include
18source ${basedir}/parameters.sh
19# Set some default params, if they didn't get set
20[ -z "$DEST_IP" ]   && DEST_IP="198.18.0.42"
21[ -z "$DST_MAC" ]   && DST_MAC="90:e2:ba:ff:ff:ff"
22[ -z "$CLONE_SKB" ] && CLONE_SKB="0"
23[ -z "$BURST" ]     && BURST=32
24[ -z "$COUNT" ]     && COUNT="0" # Zero means indefinitely
25if [ -n "$DEST_IP" ]; then
26    validate_addr $DEST_IP
27    read -r DST_MIN DST_MAX <<< $(parse_addr $DEST_IP)
28fi
29if [ -n "$DST_PORT" ]; then
30    read -r UDP_DST_MIN UDP_DST_MAX <<< $(parse_ports $DST_PORT)
31    validate_ports $UDP_DST_MIN $UDP_DST_MAX
32fi
33
34# Base Config
35DELAY="0"  # Zero means max speed
36
37# General cleanup everything since last run
38pg_ctrl "reset"
39
40# Threads are specified with parameter -t value in $THREADS
41for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do
42    dev=${DEV}@${thread}
43
44    # Add remove all other devices and add_device $dev to thread
45    pg_thread $thread "rem_device_all"
46    pg_thread $thread "add_device" $dev
47
48    # Base config
49    pg_set $dev "flag QUEUE_MAP_CPU"
50    pg_set $dev "count $COUNT"
51    pg_set $dev "clone_skb $CLONE_SKB"
52    pg_set $dev "pkt_size $PKT_SIZE"
53    pg_set $dev "delay $DELAY"
54    pg_set $dev "flag NO_TIMESTAMP"
55
56    # Single destination
57    pg_set $dev "dst_mac $DST_MAC"
58    pg_set $dev "dst_min $DST_MIN"
59    pg_set $dev "dst_max $DST_MAX"
60
61    if [ -n "$DST_PORT" ]; then
62	# Single destination port or random port range
63	pg_set $dev "flag UDPDST_RND"
64	pg_set $dev "udp_dst_min $UDP_DST_MIN"
65	pg_set $dev "udp_dst_max $UDP_DST_MAX"
66    fi
67
68    # Setup source IP-addresses based on thread number
69    pg_set $dev "src_min 198.18.$((thread+1)).1"
70    pg_set $dev "src_max 198.18.$((thread+1)).1"
71
72    # Setup burst, for easy testing -b 0 disable bursting
73    # (internally in pktgen default and minimum burst=1)
74    if [[ ${BURST} -ne 0 ]]; then
75	pg_set $dev "burst $BURST"
76    else
77	info "$dev: Not using burst"
78    fi
79
80done
81
82# Run if user hits control-c
83function print_result() {
84    # Print results
85    for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do
86	dev=${DEV}@${thread}
87	echo "Device: $dev"
88	cat /proc/net/pktgen/$dev | grep -A2 "Result:"
89    done
90}
91# trap keyboard interrupt (Ctrl-C)
92trap true SIGINT
93
94echo "Running... ctrl^C to stop" >&2
95pg_ctrl "start"
96
97print_result

 1#!/bin/bash
 2# SPDX-License-Identifier: GPL-2.0
 3#
 4# Script will generate one flow per thread (-t N)
 5#  - Same destination IP
 6#  - Fake source IPs for each flow (fixed based on thread number)
 7#
 8# Useful for scale testing on receiver, to see whether silo'ing flows
 9# works and scales.  For optimal scalability (on receiver) each
10# separate-flow should not access shared variables/data. This script
11# helps magnify any of these scaling issues by overloading the receiver.
12#
13basedir=`dirname $0`
14source ${basedir}/functions.sh
15root_check_run_with_sudo "$@"
16
17# Parameter parsing via include
18source ${basedir}/parameters.sh
19# Set some default params, if they didn't get set
20[ -z "$DEST_IP" ]   && DEST_IP="198.18.0.42"
21[ -z "$DST_MAC" ]   && DST_MAC="90:e2:ba:ff:ff:ff"
22[ -z "$CLONE_SKB" ] && CLONE_SKB="0"
23[ -z "$BURST" ]     && BURST=32
24[ -z "$COUNT" ]     && COUNT="0" # Zero means indefinitely
 
 
 
 
25if [ -n "$DST_PORT" ]; then
26    read -r DST_MIN DST_MAX <<< $(parse_ports $DST_PORT)
27    validate_ports $DST_MIN $DST_MAX
28fi
29
30# Base Config
31DELAY="0"  # Zero means max speed
32
33# General cleanup everything since last run
34pg_ctrl "reset"
35
36# Threads are specified with parameter -t value in $THREADS
37for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do
38    dev=${DEV}@${thread}
39
40    # Add remove all other devices and add_device $dev to thread
41    pg_thread $thread "rem_device_all"
42    pg_thread $thread "add_device" $dev
43
44    # Base config
45    pg_set $dev "flag QUEUE_MAP_CPU"
46    pg_set $dev "count $COUNT"
47    pg_set $dev "clone_skb $CLONE_SKB"
48    pg_set $dev "pkt_size $PKT_SIZE"
49    pg_set $dev "delay $DELAY"
50    pg_set $dev "flag NO_TIMESTAMP"
51
52    # Single destination
53    pg_set $dev "dst_mac $DST_MAC"
54    pg_set $dev "dst $DEST_IP"
 
55
56    if [ -n "$DST_PORT" ]; then
57	# Single destination port or random port range
58	pg_set $dev "flag UDPDST_RND"
59	pg_set $dev "udp_dst_min $DST_MIN"
60	pg_set $dev "udp_dst_max $DST_MAX"
61    fi
62
63    # Setup source IP-addresses based on thread number
64    pg_set $dev "src_min 198.18.$((thread+1)).1"
65    pg_set $dev "src_max 198.18.$((thread+1)).1"
66
67    # Setup burst, for easy testing -b 0 disable bursting
68    # (internally in pktgen default and minimum burst=1)
69    if [[ ${BURST} -ne 0 ]]; then
70	pg_set $dev "burst $BURST"
71    else
72	info "$dev: Not using burst"
73    fi
74
75done
76
77# Run if user hits control-c
78function print_result() {
79    # Print results
80    for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do
81	dev=${DEV}@${thread}
82	echo "Device: $dev"
83	cat /proc/net/pktgen/$dev | grep -A2 "Result:"
84    done
85}
86# trap keyboard interrupt (Ctrl-C)
87trap true SIGINT
88
89echo "Running... ctrl^C to stop" >&2
90pg_ctrl "start"
91
92print_result