1 #!/bin/bash
2 # SPDX-License-Identifier: GPL-2.0
3 #
4 # Run a series of udpgro benchmarks
5
6 source net_helper.sh
7
8 readonly PEER_NS="ns-peer-$(mktemp -u XXXXXX)"
9
10 BPF_FILE="xdp_dummy.bpf.o"
11
12 cleanup() {
13 local -r jobs="$(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 $ns 2>/dev/null
18 }
19 trap cleanup EXIT
20
21 run_one() {
22 # use 'rx' as separator between sender args and receiver args
23 local -r all="$@"
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 ${tx_args}
47 }
48
49 run_in_netns() {
50 local -r args=$@
51
52 ./in_netns.sh $0 __subprocess ${args}
53 }
54
55 run_udp() {
56 local -r args=$@
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 ${args} -S 0 rx -G
63 }
64
65 run_tcp() {
66 local -r args=$@
67
68 echo "tcp - over veth touching data"
69 run_in_netns ${args} -t rx
70 }
71
72 run_all() {
73 local -r core_args="-l 4"
74 local -r ipv4_args="${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
86 if [ ! -f ${BPF_FILE} ]; then
87 echo "Missing ${BPF_FILE}. Run 'make' first"
88 exit -1
89 fi
90
91 if [[ $# -eq 0 ]]; then
92 run_all
93 elif [[ $1 == "__subprocess" ]]; then
94 shift
95 run_one $@
96 else
97 run_in_netns $@
98 fi
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