2 # SPDX-License-Identifier: GPL-2.0
4 # Run a series of udpgro functional tests.
6 readonly PEER_NS="ns-peer-$(mktemp -u XXXXXX)"
8 # set global exit status, but never reset nonzero one.
11 if [ $ret -eq 0 ]; then
17 local -r jobs="$(jobs -p)"
18 local -r ns="$(ip netns list|grep $PEER_NS)"
20 [ -n "${jobs}" ] && kill -1 ${jobs} 2>/dev/null
21 [ -n "$ns" ] && ip netns del $ns 2>/dev/null
26 ip netns add "${PEER_NS}"
27 ip -netns "${PEER_NS}" link set lo up
29 ip link set dev veth0 up
30 ip addr add dev veth0 192.168.1.2/24
31 ip addr add dev veth0 2001:db8::2/64 nodad
33 ip link set dev veth1 netns "${PEER_NS}"
34 ip -netns "${PEER_NS}" addr add dev veth1 192.168.1.1/24
35 ip -netns "${PEER_NS}" addr add dev veth1 2001:db8::1/64 nodad
36 ip -netns "${PEER_NS}" link set dev veth1 up
37 ip -n "${PEER_NS}" link set veth1 xdp object ../bpf/xdp_dummy.o section xdp_dummy
41 # use 'rx' as separator between sender args and receiver args
43 local -r tx_args=${all%rx*}
44 local -r rx_args=${all#*rx}
48 ip netns exec "${PEER_NS}" ./udpgso_bench_rx -C 1000 -R 10 ${rx_args} && \
52 # Hack: let bg programs complete the startup
54 ./udpgso_bench_tx ${tx_args}
64 ./in_netns.sh $0 __subprocess $2 rx -G -r $3
68 # use 'rx' as separator between sender args and receiver args
69 local addr1 addr2 pid family="" ipt_cmd=ip6tables
71 local -r tx_args=${all%rx*}
72 local -r rx_args=${all#*rx}
74 if [[ ${tx_args} = *-4* ]]; then
81 addr2="2001:db8::3/64 nodad"
85 ip -netns "${PEER_NS}" addr add dev veth1 ${addr2}
87 # fool the GRO engine changing the destination address ...
88 ip netns exec "${PEER_NS}" $ipt_cmd -t nat -I PREROUTING -d ${addr1} -j DNAT --to-destination ${addr2%/*}
90 # ... so that GRO will match the UDP_GRO enabled socket, but packets
91 # will land on the 'plain' one
92 ip netns exec "${PEER_NS}" ./udpgso_bench_rx -G ${family} -b ${addr1} -n 0 &
94 ip netns exec "${PEER_NS}" ./udpgso_bench_rx -C 1000 -R 10 ${family} -b ${addr2%/*} ${rx_args} && \
99 ./udpgso_bench_tx ${tx_args}
107 # use 'rx' as separator between sender args and receiver args
109 local -r tx_args=${all%rx*}
110 local -r rx_args=${all#*rx}
114 ip netns exec "${PEER_NS}" ./udpgso_bench_rx -C 1000 -R 10 ${rx_args} -p 12345 &
115 ip netns exec "${PEER_NS}" ./udpgso_bench_rx -C 2000 -R 10 ${rx_args} && \
119 # Hack: let bg programs complete the startup
121 ./udpgso_bench_tx ${tx_args} -p 12345
123 # first UDP GSO socket should be closed at this point
124 ./udpgso_bench_tx ${tx_args}
134 ./in_netns.sh $0 __subprocess_nat $2 rx -r $3
141 ./in_netns.sh $0 __subprocess_2sock $2 rx -G -r $3
145 local -r core_args="-l 4"
146 local -r ipv4_args="${core_args} -4 -D 192.168.1.1"
147 local -r ipv6_args="${core_args} -6 -D 2001:db8::1"
151 run_test "no GRO" "${ipv4_args} -M 10 -s 1400" "-4 -n 10 -l 1400"
154 # explicitly check we are not receiving UDP_SEGMENT cmsg (-S -1)
155 # when GRO does not take place
156 run_test "no GRO chk cmsg" "${ipv4_args} -M 10 -s 1400" "-4 -n 10 -l 1400 -S -1"
159 # the GSO packets are aggregated because:
160 # * veth schedule napi after each xmit
161 # * segmentation happens in BH context, veth napi poll is delayed after
162 # the transmission of the last segment
163 run_test "GRO" "${ipv4_args} -M 1 -s 14720 -S 0 " "-4 -n 1 -l 14720"
165 run_test "GRO chk cmsg" "${ipv4_args} -M 1 -s 14720 -S 0 " "-4 -n 1 -l 14720 -S 1472"
167 run_test "GRO with custom segment size" "${ipv4_args} -M 1 -s 14720 -S 500 " "-4 -n 1 -l 14720"
169 run_test "GRO with custom segment size cmsg" "${ipv4_args} -M 1 -s 14720 -S 500 " "-4 -n 1 -l 14720 -S 500"
172 run_nat_test "bad GRO lookup" "${ipv4_args} -M 1 -s 14720 -S 0" "-n 10 -l 1472"
174 run_2sock_test "multiple GRO socks" "${ipv4_args} -M 1 -s 14720 -S 0 " "-4 -n 1 -l 14720 -S 1472"
178 run_test "no GRO" "${ipv6_args} -M 10 -s 1400" "-n 10 -l 1400"
180 run_test "no GRO chk cmsg" "${ipv6_args} -M 10 -s 1400" "-n 10 -l 1400 -S -1"
182 run_test "GRO" "${ipv6_args} -M 1 -s 14520 -S 0" "-n 1 -l 14520"
184 run_test "GRO chk cmsg" "${ipv6_args} -M 1 -s 14520 -S 0" "-n 1 -l 14520 -S 1452"
186 run_test "GRO with custom segment size" "${ipv6_args} -M 1 -s 14520 -S 500" "-n 1 -l 14520"
188 run_test "GRO with custom segment size cmsg" "${ipv6_args} -M 1 -s 14520 -S 500" "-n 1 -l 14520 -S 500"
191 run_nat_test "bad GRO lookup" "${ipv6_args} -M 1 -s 14520 -S 0" "-n 10 -l 1452"
193 run_2sock_test "multiple GRO socks" "${ipv6_args} -M 1 -s 14520 -S 0 " "-n 1 -l 14520 -S 1452"
198 if [ ! -f ../bpf/xdp_dummy.o ]; then
199 echo "Missing xdp_dummy helper. Build bpf selftest first"
203 if [[ $# -eq 0 ]]; then
205 elif [[ $1 == "__subprocess" ]]; then
208 elif [[ $1 == "__subprocess_nat" ]]; then
211 elif [[ $1 == "__subprocess_2sock" ]]; then