2 # SPDX-License-Identifier: GPL-2.0
4 # Run a series of udpgro functional tests.
8 readonly PEER_NS="ns-peer-$(mktemp -u XXXXXX)"
10 BPF_FILE="xdp_dummy.bpf.o"
12 # set global exit status, but never reset nonzero one.
15 if [ $ret -eq 0 ]; then
21 local -r jobs="$(jobs -p)"
22 local -r ns="$(ip netns list|grep $PEER_NS)"
24 [ -n "${jobs}" ] && kill -1 ${jobs} 2>/dev/null
25 [ -n "$ns" ] && ip netns del $ns 2>/dev/null
30 ip netns add "${PEER_NS}"
31 ip -netns "${PEER_NS}" link set lo up
33 ip link set dev veth0 up
34 ip addr add dev veth0 192.168.1.2/24
35 ip addr add dev veth0 2001:db8::2/64 nodad
37 ip link set dev veth1 netns "${PEER_NS}"
38 ip -netns "${PEER_NS}" addr add dev veth1 192.168.1.1/24
39 ip -netns "${PEER_NS}" addr add dev veth1 2001:db8::1/64 nodad
40 ip -netns "${PEER_NS}" link set dev veth1 up
41 ip -n "${PEER_NS}" link set veth1 xdp object ${BPF_FILE} section xdp
45 # use 'rx' as separator between sender args and receiver args
47 local -r tx_args=${all%rx*}
48 local -r rx_args=${all#*rx}
52 ip netns exec "${PEER_NS}" ./udpgso_bench_rx -C 1000 -R 10 ${rx_args} && \
56 wait_local_port_listen ${PEER_NS} 8000 udp
57 ./udpgso_bench_tx ${tx_args}
67 ./in_netns.sh $0 __subprocess $2 rx -G -r $3
71 # use 'rx' as separator between sender args and receiver args
72 local addr1 addr2 pid family="" ipt_cmd=ip6tables
74 local -r tx_args=${all%rx*}
75 local -r rx_args=${all#*rx}
77 if [[ ${tx_args} = *-4* ]]; then
84 addr2="2001:db8::3/64 nodad"
88 ip -netns "${PEER_NS}" addr add dev veth1 ${addr2}
90 # fool the GRO engine changing the destination address ...
91 ip netns exec "${PEER_NS}" $ipt_cmd -t nat -I PREROUTING -d ${addr1} -j DNAT --to-destination ${addr2%/*}
93 # ... so that GRO will match the UDP_GRO enabled socket, but packets
94 # will land on the 'plain' one
95 ip netns exec "${PEER_NS}" ./udpgso_bench_rx -G ${family} -b ${addr1} -n 0 &
97 ip netns exec "${PEER_NS}" ./udpgso_bench_rx -C 1000 -R 10 ${family} -b ${addr2%/*} ${rx_args} && \
101 wait_local_port_listen "${PEER_NS}" 8000 udp
102 ./udpgso_bench_tx ${tx_args}
110 # use 'rx' as separator between sender args and receiver args
112 local -r tx_args=${all%rx*}
113 local -r rx_args=${all#*rx}
117 ip netns exec "${PEER_NS}" ./udpgso_bench_rx -C 1000 -R 10 ${rx_args} -p 12345 &
118 ip netns exec "${PEER_NS}" ./udpgso_bench_rx -C 2000 -R 10 ${rx_args} && \
122 wait_local_port_listen "${PEER_NS}" 12345 udp
123 ./udpgso_bench_tx ${tx_args} -p 12345
124 wait_local_port_listen "${PEER_NS}" 8000 udp
125 ./udpgso_bench_tx ${tx_args}
135 ./in_netns.sh $0 __subprocess_nat $2 rx -r $3
142 ./in_netns.sh $0 __subprocess_2sock $2 rx -G -r $3
146 local -r core_args="-l 4"
147 local -r ipv4_args="${core_args} -4 -D 192.168.1.1"
148 local -r ipv6_args="${core_args} -6 -D 2001:db8::1"
152 run_test "no GRO" "${ipv4_args} -M 10 -s 1400" "-4 -n 10 -l 1400"
155 # explicitly check we are not receiving UDP_SEGMENT cmsg (-S -1)
156 # when GRO does not take place
157 run_test "no GRO chk cmsg" "${ipv4_args} -M 10 -s 1400" "-4 -n 10 -l 1400 -S -1"
160 # the GSO packets are aggregated because:
161 # * veth schedule napi after each xmit
162 # * segmentation happens in BH context, veth napi poll is delayed after
163 # the transmission of the last segment
164 run_test "GRO" "${ipv4_args} -M 1 -s 14720 -S 0 " "-4 -n 1 -l 14720"
166 run_test "GRO chk cmsg" "${ipv4_args} -M 1 -s 14720 -S 0 " "-4 -n 1 -l 14720 -S 1472"
168 run_test "GRO with custom segment size" "${ipv4_args} -M 1 -s 14720 -S 500 " "-4 -n 1 -l 14720"
170 run_test "GRO with custom segment size cmsg" "${ipv4_args} -M 1 -s 14720 -S 500 " "-4 -n 1 -l 14720 -S 500"
173 run_nat_test "bad GRO lookup" "${ipv4_args} -M 1 -s 14720 -S 0" "-n 10 -l 1472"
175 run_2sock_test "multiple GRO socks" "${ipv4_args} -M 1 -s 14720 -S 0 " "-4 -n 1 -l 14720 -S 1472"
179 run_test "no GRO" "${ipv6_args} -M 10 -s 1400" "-n 10 -l 1400"
181 run_test "no GRO chk cmsg" "${ipv6_args} -M 10 -s 1400" "-n 10 -l 1400 -S -1"
183 run_test "GRO" "${ipv6_args} -M 1 -s 14520 -S 0" "-n 1 -l 14520"
185 run_test "GRO chk cmsg" "${ipv6_args} -M 1 -s 14520 -S 0" "-n 1 -l 14520 -S 1452"
187 run_test "GRO with custom segment size" "${ipv6_args} -M 1 -s 14520 -S 500" "-n 1 -l 14520"
189 run_test "GRO with custom segment size cmsg" "${ipv6_args} -M 1 -s 14520 -S 500" "-n 1 -l 14520 -S 500"
192 run_nat_test "bad GRO lookup" "${ipv6_args} -M 1 -s 14520 -S 0" "-n 10 -l 1452"
194 run_2sock_test "multiple GRO socks" "${ipv6_args} -M 1 -s 14520 -S 0 " "-n 1 -l 14520 -S 1452"
199 if [ ! -f ${BPF_FILE} ]; then
200 echo "Missing ${BPF_FILE}. Run 'make' first"
204 if [[ $# -eq 0 ]]; then
206 elif [[ $1 == "__subprocess" ]]; then
209 elif [[ $1 == "__subprocess_nat" ]]; then
212 elif [[ $1 == "__subprocess_2sock" ]]; then