tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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-$(mktemp -u XXXXXX)"
9
10BPF_FILE="xdp_dummy.bpf.o"
11
12cleanup() {
13 local -r jobs="$(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
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 ip netns exec "${PEER_NS}" ethtool -K veth1 rx-gro-list on
41
42
43 ip -n "${PEER_NS}" link set veth1 xdp object ${BPF_FILE} section xdp
44 tc -n "${PEER_NS}" qdisc add dev veth1 clsact
45 tc -n "${PEER_NS}" filter add dev veth1 ingress prio 4 protocol ipv6 bpf object-file nat6to4.bpf.o section schedcls/ingress6/nat_6 direct-action
46 tc -n "${PEER_NS}" filter add dev veth1 egress prio 4 protocol ip bpf object-file nat6to4.bpf.o section schedcls/egress4/snat4 direct-action
47 echo ${rx_args}
48 ip netns exec "${PEER_NS}" ./udpgso_bench_rx ${rx_args} -r &
49
50 wait_local_port_listen "${PEER_NS}" 8000 udp
51 ./udpgso_bench_tx ${tx_args}
52}
53
54run_in_netns() {
55 local -r args=$@
56 echo ${args}
57 ./in_netns.sh $0 __subprocess ${args}
58}
59
60run_udp() {
61 local -r args=$@
62
63 echo "udp gso - over veth touching data"
64 run_in_netns ${args} -u -S 0 rx -4 -v
65
66 echo "udp gso and gro - over veth touching data"
67 run_in_netns ${args} -S 0 rx -4 -G
68}
69
70run_tcp() {
71 local -r args=$@
72
73 echo "tcp - over veth touching data"
74 run_in_netns ${args} -t rx -4 -t
75}
76
77run_all() {
78 local -r core_args="-l 4"
79 local -r ipv4_args="${core_args} -4 -D 192.168.1.1"
80 local -r ipv6_args="${core_args} -6 -D 2001:db8::1"
81
82 echo "ipv6"
83 run_tcp "${ipv6_args}"
84 run_udp "${ipv6_args}"
85}
86
87if [ ! -f ${BPF_FILE} ]; then
88 echo "Missing ${BPF_FILE}. Run 'make' first"
89 exit -1
90fi
91
92if [ ! -f nat6to4.bpf.o ]; then
93 echo "Missing nat6to4 helper. Run 'make' first"
94 exit -1
95fi
96
97if [[ $# -eq 0 ]]; then
98 run_all
99elif [[ $1 == "__subprocess" ]]; then
100 shift
101 run_one $@
102else
103 run_in_netns $@
104fi