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282fb589 JDB |
1 | #!/bin/bash |
2 | # | |
3 | # Multiqueue: Using pktgen threads for sending on multiple CPUs | |
4 | # * adding devices to kernel threads | |
5 | # * notice the naming scheme for keeping device names unique | |
6 | # * nameing scheme: dev@thread_number | |
7 | # * flow variation via random UDP source port | |
8 | # | |
9 | basedir=`dirname $0` | |
10 | source ${basedir}/functions.sh | |
11 | root_check_run_with_sudo "$@" | |
12 | # | |
13 | # Required param: -i dev in $DEV | |
14 | source ${basedir}/parameters.sh | |
15 | ||
16 | # Base Config | |
17 | DELAY="0" # Zero means max speed | |
18 | COUNT="100000" # Zero means indefinitely | |
19 | [ -z "$CLONE_SKB" ] && CLONE_SKB="0" | |
20 | ||
21 | # Flow variation random source port between min and max | |
22 | UDP_MIN=9 | |
23 | UDP_MAX=109 | |
24 | ||
25 | # (example of setting default params in your script) | |
0f06a678 MKL |
26 | if [ -z "$DEST_IP" ]; then |
27 | [ -z "$IP6" ] && DEST_IP="198.18.0.42" || DEST_IP="FD00::1" | |
28 | fi | |
282fb589 JDB |
29 | [ -z "$DST_MAC" ] && DST_MAC="90:e2:ba:ff:ff:ff" |
30 | ||
31 | # General cleanup everything since last run | |
32 | pg_ctrl "reset" | |
33 | ||
34 | # Threads are specified with parameter -t value in $THREADS | |
35 | for ((thread = 0; thread < $THREADS; thread++)); do | |
36 | # The device name is extended with @name, using thread number to | |
37 | # make then unique, but any name will do. | |
38 | dev=${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 | # Notice config queue to map to cpu (mirrors smp_processor_id()) | |
45 | # It is beneficial to map IRQ /proc/irq/*/smp_affinity 1:1 to CPU number | |
46 | pg_set $dev "flag QUEUE_MAP_CPU" | |
47 | ||
48 | # Base config of dev | |
49 | pg_set $dev "count $COUNT" | |
50 | pg_set $dev "clone_skb $CLONE_SKB" | |
51 | pg_set $dev "pkt_size $PKT_SIZE" | |
52 | pg_set $dev "delay $DELAY" | |
53 | ||
54 | # Flag example disabling timestamping | |
55 | pg_set $dev "flag NO_TIMESTAMP" | |
56 | ||
57 | # Destination | |
58 | pg_set $dev "dst_mac $DST_MAC" | |
0f06a678 | 59 | pg_set $dev "dst$IP6 $DEST_IP" |
282fb589 JDB |
60 | |
61 | # Setup random UDP port src range | |
62 | pg_set $dev "flag UDPSRC_RND" | |
63 | pg_set $dev "udp_src_min $UDP_MIN" | |
64 | pg_set $dev "udp_src_max $UDP_MAX" | |
65 | done | |
66 | ||
67 | # start_run | |
68 | echo "Running... ctrl^C to stop" >&2 | |
69 | pg_ctrl "start" | |
70 | echo "Done" >&2 | |
71 | ||
72 | # Print results | |
73 | for ((thread = 0; thread < $THREADS; thread++)); do | |
74 | dev=${DEV}@${thread} | |
75 | echo "Device: $dev" | |
76 | cat /proc/net/pktgen/$dev | grep -A2 "Result:" | |
77 | done |