2 # SPDX-License-Identifier: GPL-2.0
4 # Run a series of udpgro functional tests.
6 readonly PEER_NS="ns-peer-$(mktemp -u XXXXXX)"
10 # set global exit status, but never reset nonzero one.
13 if [ $ret -eq 0 ]; then
19 local -r jobs="$(jobs -p)"
20 local -r ns="$(ip netns list|grep $PEER_NS)"
22 [ -n "${jobs}" ] && kill -1 ${jobs} 2>/dev/null
23 [ -n "$ns" ] && ip netns del $ns 2>/dev/null
28 ip netns add "${PEER_NS}"
29 ip -netns "${PEER_NS}" link set lo up
31 ip link set dev veth0 up
32 ip addr add dev veth0 192.168.1.2/24
33 ip addr add dev veth0 2001:db8::2/64 nodad
35 ip link set dev veth1 netns "${PEER_NS}"
36 ip -netns "${PEER_NS}" addr add dev veth1 192.168.1.1/24
37 ip -netns "${PEER_NS}" addr add dev veth1 2001:db8::1/64 nodad
38 ip -netns "${PEER_NS}" link set dev veth1 up
39 ip -n "${PEER_NS}" link set veth1 xdp object ${BPF_FILE} section xdp
43 # use 'rx' as separator between sender args and receiver args
45 local -r tx_args=${all%rx*}
46 local -r rx_args=${all#*rx}
50 ip netns exec "${PEER_NS}" ./udpgso_bench_rx -C 1000 -R 10 ${rx_args} && \
54 # Hack: let bg programs complete the startup
56 ./udpgso_bench_tx ${tx_args}
66 ./in_netns.sh $0 __subprocess $2 rx -G -r $3
70 # use 'rx' as separator between sender args and receiver args
71 local addr1 addr2 pid family="" ipt_cmd=ip6tables
73 local -r tx_args=${all%rx*}
74 local -r rx_args=${all#*rx}
76 if [[ ${tx_args} = *-4* ]]; then
83 addr2="2001:db8::3/64 nodad"
87 ip -netns "${PEER_NS}" addr add dev veth1 ${addr2}
89 # fool the GRO engine changing the destination address ...
90 ip netns exec "${PEER_NS}" $ipt_cmd -t nat -I PREROUTING -d ${addr1} -j DNAT --to-destination ${addr2%/*}
92 # ... so that GRO will match the UDP_GRO enabled socket, but packets
93 # will land on the 'plain' one
94 ip netns exec "${PEER_NS}" ./udpgso_bench_rx -G ${family} -b ${addr1} -n 0 &
96 ip netns exec "${PEER_NS}" ./udpgso_bench_rx -C 1000 -R 10 ${family} -b ${addr2%/*} ${rx_args} && \
101 ./udpgso_bench_tx ${tx_args}
109 # use 'rx' as separator between sender args and receiver args
111 local -r tx_args=${all%rx*}
112 local -r rx_args=${all#*rx}
116 ip netns exec "${PEER_NS}" ./udpgso_bench_rx -C 1000 -R 10 ${rx_args} -p 12345 &
117 ip netns exec "${PEER_NS}" ./udpgso_bench_rx -C 2000 -R 10 ${rx_args} && \
121 # Hack: let bg programs complete the startup
123 ./udpgso_bench_tx ${tx_args} -p 12345
125 # first UDP GSO socket should be closed at this point
126 ./udpgso_bench_tx ${tx_args}
136 ./in_netns.sh $0 __subprocess_nat $2 rx -r $3
143 ./in_netns.sh $0 __subprocess_2sock $2 rx -G -r $3
147 local -r core_args="-l 4"
148 local -r ipv4_args="${core_args} -4 -D 192.168.1.1"
149 local -r ipv6_args="${core_args} -6 -D 2001:db8::1"
153 run_test "no GRO" "${ipv4_args} -M 10 -s 1400" "-4 -n 10 -l 1400"
156 # explicitly check we are not receiving UDP_SEGMENT cmsg (-S -1)
157 # when GRO does not take place
158 run_test "no GRO chk cmsg" "${ipv4_args} -M 10 -s 1400" "-4 -n 10 -l 1400 -S -1"
161 # the GSO packets are aggregated because:
162 # * veth schedule napi after each xmit
163 # * segmentation happens in BH context, veth napi poll is delayed after
164 # the transmission of the last segment
165 run_test "GRO" "${ipv4_args} -M 1 -s 14720 -S 0 " "-4 -n 1 -l 14720"
167 run_test "GRO chk cmsg" "${ipv4_args} -M 1 -s 14720 -S 0 " "-4 -n 1 -l 14720 -S 1472"
169 run_test "GRO with custom segment size" "${ipv4_args} -M 1 -s 14720 -S 500 " "-4 -n 1 -l 14720"
171 run_test "GRO with custom segment size cmsg" "${ipv4_args} -M 1 -s 14720 -S 500 " "-4 -n 1 -l 14720 -S 500"
174 run_nat_test "bad GRO lookup" "${ipv4_args} -M 1 -s 14720 -S 0" "-n 10 -l 1472"
176 run_2sock_test "multiple GRO socks" "${ipv4_args} -M 1 -s 14720 -S 0 " "-4 -n 1 -l 14720 -S 1472"
180 run_test "no GRO" "${ipv6_args} -M 10 -s 1400" "-n 10 -l 1400"
182 run_test "no GRO chk cmsg" "${ipv6_args} -M 10 -s 1400" "-n 10 -l 1400 -S -1"
184 run_test "GRO" "${ipv6_args} -M 1 -s 14520 -S 0" "-n 1 -l 14520"
186 run_test "GRO chk cmsg" "${ipv6_args} -M 1 -s 14520 -S 0" "-n 1 -l 14520 -S 1452"
188 run_test "GRO with custom segment size" "${ipv6_args} -M 1 -s 14520 -S 500" "-n 1 -l 14520"
190 run_test "GRO with custom segment size cmsg" "${ipv6_args} -M 1 -s 14520 -S 500" "-n 1 -l 14520 -S 500"
193 run_nat_test "bad GRO lookup" "${ipv6_args} -M 1 -s 14520 -S 0" "-n 10 -l 1452"
195 run_2sock_test "multiple GRO socks" "${ipv6_args} -M 1 -s 14520 -S 0 " "-n 1 -l 14520 -S 1452"
200 if [ ! -f ${BPF_FILE} ]; then
201 echo "Missing ${BPF_FILE}. Run 'make' first"
205 if [[ $# -eq 0 ]]; then
207 elif [[ $1 == "__subprocess" ]]; then
210 elif [[ $1 == "__subprocess_nat" ]]; then
213 elif [[ $1 == "__subprocess_2sock" ]]; then