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Commit | Line | Data |
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282fb589 | 1 | #!/bin/bash |
b2441318 | 2 | # SPDX-License-Identifier: GPL-2.0 |
282fb589 JDB |
3 | # |
4 | # Multiqueue: Using pktgen threads for sending on multiple CPUs | |
5 | # * adding devices to kernel threads | |
6 | # * notice the naming scheme for keeping device names unique | |
7 | # * nameing scheme: dev@thread_number | |
8 | # * flow variation via random UDP source port | |
9 | # | |
10 | basedir=`dirname $0` | |
11 | source ${basedir}/functions.sh | |
12 | root_check_run_with_sudo "$@" | |
13 | # | |
14 | # Required param: -i dev in $DEV | |
15 | source ${basedir}/parameters.sh | |
16 | ||
a27ac539 M |
17 | # Trap EXIT first |
18 | trap_exit | |
19 | ||
69137ea6 TT |
20 | [ -z "$COUNT" ] && COUNT="100000" # Zero means indefinitely |
21 | ||
282fb589 | 22 | # Base Config |
282fb589 JDB |
23 | [ -z "$CLONE_SKB" ] && CLONE_SKB="0" |
24 | ||
25 | # Flow variation random source port between min and max | |
723d2904 DL |
26 | UDP_SRC_MIN=9 |
27 | UDP_SRC_MAX=109 | |
282fb589 JDB |
28 | |
29 | # (example of setting default params in your script) | |
0f06a678 MKL |
30 | if [ -z "$DEST_IP" ]; then |
31 | [ -z "$IP6" ] && DEST_IP="198.18.0.42" || DEST_IP="FD00::1" | |
32 | fi | |
282fb589 | 33 | [ -z "$DST_MAC" ] && DST_MAC="90:e2:ba:ff:ff:ff" |
40f843ee DL |
34 | if [ -n "$DEST_IP" ]; then |
35 | validate_addr${IP6} $DEST_IP | |
36 | read -r DST_MIN DST_MAX <<< $(parse_addr${IP6} $DEST_IP) | |
37 | fi | |
6e32a74a | 38 | if [ -n "$DST_PORT" ]; then |
723d2904 DL |
39 | read -r UDP_DST_MIN UDP_DST_MAX <<< $(parse_ports $DST_PORT) |
40 | validate_ports $UDP_DST_MIN $UDP_DST_MAX | |
6e32a74a | 41 | fi |
282fb589 JDB |
42 | |
43 | # General cleanup everything since last run | |
c8fd4852 | 44 | [ -z "$APPEND" ] && pg_ctrl "reset" |
282fb589 JDB |
45 | |
46 | # Threads are specified with parameter -t value in $THREADS | |
e0e16672 | 47 | for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do |
282fb589 JDB |
48 | # The device name is extended with @name, using thread number to |
49 | # make then unique, but any name will do. | |
50 | dev=${DEV}@${thread} | |
51 | ||
52 | # Add remove all other devices and add_device $dev to thread | |
c8fd4852 | 53 | [ -z "$APPEND" ] && pg_thread $thread "rem_device_all" |
282fb589 JDB |
54 | pg_thread $thread "add_device" $dev |
55 | ||
56 | # Notice config queue to map to cpu (mirrors smp_processor_id()) | |
57 | # It is beneficial to map IRQ /proc/irq/*/smp_affinity 1:1 to CPU number | |
58 | pg_set $dev "flag QUEUE_MAP_CPU" | |
59 | ||
60 | # Base config of dev | |
61 | pg_set $dev "count $COUNT" | |
62 | pg_set $dev "clone_skb $CLONE_SKB" | |
63 | pg_set $dev "pkt_size $PKT_SIZE" | |
64 | pg_set $dev "delay $DELAY" | |
65 | ||
66 | # Flag example disabling timestamping | |
67 | pg_set $dev "flag NO_TIMESTAMP" | |
68 | ||
69 | # Destination | |
70 | pg_set $dev "dst_mac $DST_MAC" | |
40f843ee DL |
71 | pg_set $dev "dst${IP6}_min $DST_MIN" |
72 | pg_set $dev "dst${IP6}_max $DST_MAX" | |
282fb589 | 73 | |
6e32a74a DL |
74 | if [ -n "$DST_PORT" ]; then |
75 | # Single destination port or random port range | |
76 | pg_set $dev "flag UDPDST_RND" | |
723d2904 DL |
77 | pg_set $dev "udp_dst_min $UDP_DST_MIN" |
78 | pg_set $dev "udp_dst_max $UDP_DST_MAX" | |
6e32a74a DL |
79 | fi |
80 | ||
460a9aa2 LB |
81 | [ ! -z "$UDP_CSUM" ] && pg_set $dev "flag UDPCSUM" |
82 | ||
282fb589 JDB |
83 | # Setup random UDP port src range |
84 | pg_set $dev "flag UDPSRC_RND" | |
723d2904 DL |
85 | pg_set $dev "udp_src_min $UDP_SRC_MIN" |
86 | pg_set $dev "udp_src_max $UDP_SRC_MAX" | |
282fb589 JDB |
87 | done |
88 | ||
6c882bdc JK |
89 | # Run if user hits control-c |
90 | function print_result() { | |
c8fd4852 IR |
91 | # Print results |
92 | for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do | |
93 | dev=${DEV}@${thread} | |
94 | echo "Device: $dev" | |
95 | cat /proc/net/pktgen/$dev | grep -A2 "Result:" | |
96 | done | |
6c882bdc JK |
97 | } |
98 | # trap keyboard interrupt (Ctrl-C) | |
99 | trap true SIGINT | |
100 | ||
101 | if [ -z "$APPEND" ]; then | |
102 | # start_run | |
103 | echo "Running... ctrl^C to stop" >&2 | |
104 | pg_ctrl "start" | |
105 | echo "Done" >&2 | |
106 | ||
107 | print_result | |
c8fd4852 IR |
108 | else |
109 | echo "Append mode: config done. Do more or use 'pg_ctrl start' to run" | |
110 | fi |