1#!/bin/bash
2# SPDX-License-Identifier: GPL-2.0
3#
4# Run a series of udpgro benchmarks
5
6source net_helper.sh
7
8readonly PEER_NS="ns-peer-$(mktemp -u XXXXXX)"
9
10BPF_FILE="xdp_dummy.o"
11
12cleanup() {
13	local -r jobs="$(jobs -p)"
14	local -r ns="$(ip netns list|grep $PEER_NS)"
15
16	[ -n "${jobs}" ] && kill -INT ${jobs} 2>/dev/null
17	[ -n "$ns" ] && ip netns del $ns 2>/dev/null
18}
19trap cleanup EXIT
20
21run_one() {
22	# use 'rx' as separator between sender args and receiver args
23	local -r all="$@"
24	local -r tx_args=${all%rx*}
25	local rx_args=${all#*rx}
26
27	[[ "${tx_args}" == *"-4"* ]] && rx_args="${rx_args} -4"
28
29	ip netns add "${PEER_NS}"
30	ip -netns "${PEER_NS}" link set lo up
31	ip link add type veth
32	ip link set dev veth0 up
33	ip addr add dev veth0 192.168.1.2/24
34	ip addr add dev veth0 2001:db8::2/64 nodad
35
36	ip link set dev veth1 netns "${PEER_NS}"
37	ip -netns "${PEER_NS}" addr add dev veth1 192.168.1.1/24
38	ip -netns "${PEER_NS}" addr add dev veth1 2001:db8::1/64 nodad
39	ip -netns "${PEER_NS}" link set dev veth1 up
40
41	ip -n "${PEER_NS}" link set veth1 xdp object ${BPF_FILE} section xdp
42	ip netns exec "${PEER_NS}" ./udpgso_bench_rx ${rx_args} -r &
43	ip netns exec "${PEER_NS}" ./udpgso_bench_rx -t ${rx_args} -r &
44
45	wait_local_port_listen "${PEER_NS}" 8000 udp
46	./udpgso_bench_tx ${tx_args}
47}
48
49run_in_netns() {
50	local -r args=$@
51
52	./in_netns.sh $0 __subprocess ${args}
53}
54
55run_udp() {
56	local -r args=$@
57
58	echo "udp gso - over veth touching data"
59	run_in_netns ${args} -S 0 rx
60
61	echo "udp gso and gro - over veth touching data"
62	run_in_netns ${args} -S 0 rx -G
63}
64
65run_tcp() {
66	local -r args=$@
67
68	echo "tcp - over veth touching data"
69	run_in_netns ${args} -t rx
70}
71
72run_all() {
73	local -r core_args="-l 4"
74	local -r ipv4_args="${core_args} -4 -D 192.168.1.1"
75	local -r ipv6_args="${core_args} -6 -D 2001:db8::1"
76
77	echo "ipv4"
78	run_tcp "${ipv4_args}"
79	run_udp "${ipv4_args}"
80
81	echo "ipv6"
82	run_tcp "${ipv4_args}"
83	run_udp "${ipv6_args}"
84}
85
86if [ ! -f ${BPF_FILE} ]; then
87	echo "Missing ${BPF_FILE}. Run 'make' first"
88	exit -1
89fi
90
91if [[ $# -eq 0 ]]; then
92	run_all
93elif [[ $1 == "__subprocess" ]]; then
94	shift
95	run_one $@
96else
97	run_in_netns $@
98fi
99