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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 | #!/bin/bash # SPDX-License-Identifier: GPL-2.0 # # Run a series of udpgro functional tests. readonly PEER_NS="ns-peer-$(mktemp -u XXXXXX)" cleanup() { local -r jobs="$(jobs -p)" local -r ns="$(ip netns list|grep $PEER_NS)" [ -n "${jobs}" ] && kill -1 ${jobs} 2>/dev/null [ -n "$ns" ] && ip netns del $ns 2>/dev/null } trap cleanup EXIT cfg_veth() { ip netns add "${PEER_NS}" ip -netns "${PEER_NS}" link set lo up ip link add type veth ip link set dev veth0 up ip addr add dev veth0 192.168.1.2/24 ip addr add dev veth0 2001:db8::2/64 nodad ip link set dev veth1 netns "${PEER_NS}" ip -netns "${PEER_NS}" addr add dev veth1 192.168.1.1/24 ip -netns "${PEER_NS}" addr add dev veth1 2001:db8::1/64 nodad ip -netns "${PEER_NS}" link set dev veth1 up ip -n "${PEER_NS}" link set veth1 xdp object ../bpf/xdp_dummy.o section xdp_dummy } run_one() { # use 'rx' as separator between sender args and receiver args local -r all="$@" local -r tx_args=${all%rx*} local -r rx_args=${all#*rx} cfg_veth ip netns exec "${PEER_NS}" ./udpgso_bench_rx -C 1000 -R 10 ${rx_args} && \ echo "ok" || \ echo "failed" & # Hack: let bg programs complete the startup sleep 0.1 ./udpgso_bench_tx ${tx_args} wait $(jobs -p) } run_test() { local -r args=$@ printf " %-40s" "$1" ./in_netns.sh $0 __subprocess $2 rx -G -r $3 } run_one_nat() { # use 'rx' as separator between sender args and receiver args local addr1 addr2 pid family="" ipt_cmd=ip6tables local -r all="$@" local -r tx_args=${all%rx*} local -r rx_args=${all#*rx} if [[ ${tx_args} = *-4* ]]; then ipt_cmd=iptables family=-4 addr1=192.168.1.1 addr2=192.168.1.3/24 else addr1=2001:db8::1 addr2="2001:db8::3/64 nodad" fi cfg_veth ip -netns "${PEER_NS}" addr add dev veth1 ${addr2} # fool the GRO engine changing the destination address ... ip netns exec "${PEER_NS}" $ipt_cmd -t nat -I PREROUTING -d ${addr1} -j DNAT --to-destination ${addr2%/*} # ... so that GRO will match the UDP_GRO enabled socket, but packets # will land on the 'plain' one ip netns exec "${PEER_NS}" ./udpgso_bench_rx -G ${family} -b ${addr1} -n 0 & pid=$! ip netns exec "${PEER_NS}" ./udpgso_bench_rx -C 1000 -R 10 ${family} -b ${addr2%/*} ${rx_args} && \ echo "ok" || \ echo "failed"& sleep 0.1 ./udpgso_bench_tx ${tx_args} kill -INT $pid wait $(jobs -p) } run_one_2sock() { # use 'rx' as separator between sender args and receiver args local -r all="$@" local -r tx_args=${all%rx*} local -r rx_args=${all#*rx} cfg_veth ip netns exec "${PEER_NS}" ./udpgso_bench_rx -C 1000 -R 10 ${rx_args} -p 12345 & ip netns exec "${PEER_NS}" ./udpgso_bench_rx -C 2000 -R 10 ${rx_args} && \ echo "ok" || \ echo "failed" & # Hack: let bg programs complete the startup sleep 0.1 ./udpgso_bench_tx ${tx_args} -p 12345 sleep 0.1 # first UDP GSO socket should be closed at this point ./udpgso_bench_tx ${tx_args} wait $(jobs -p) } run_nat_test() { local -r args=$@ printf " %-40s" "$1" ./in_netns.sh $0 __subprocess_nat $2 rx -r $3 } run_2sock_test() { local -r args=$@ printf " %-40s" "$1" ./in_netns.sh $0 __subprocess_2sock $2 rx -G -r $3 } run_all() { local -r core_args="-l 4" local -r ipv4_args="${core_args} -4 -D 192.168.1.1" local -r ipv6_args="${core_args} -6 -D 2001:db8::1" echo "ipv4" run_test "no GRO" "${ipv4_args} -M 10 -s 1400" "-4 -n 10 -l 1400" # explicitly check we are not receiving UDP_SEGMENT cmsg (-S -1) # when GRO does not take place run_test "no GRO chk cmsg" "${ipv4_args} -M 10 -s 1400" "-4 -n 10 -l 1400 -S -1" # the GSO packets are aggregated because: # * veth schedule napi after each xmit # * segmentation happens in BH context, veth napi poll is delayed after # the transmission of the last segment run_test "GRO" "${ipv4_args} -M 1 -s 14720 -S 0 " "-4 -n 1 -l 14720" run_test "GRO chk cmsg" "${ipv4_args} -M 1 -s 14720 -S 0 " "-4 -n 1 -l 14720 -S 1472" run_test "GRO with custom segment size" "${ipv4_args} -M 1 -s 14720 -S 500 " "-4 -n 1 -l 14720" run_test "GRO with custom segment size cmsg" "${ipv4_args} -M 1 -s 14720 -S 500 " "-4 -n 1 -l 14720 -S 500" run_nat_test "bad GRO lookup" "${ipv4_args} -M 1 -s 14720 -S 0" "-n 10 -l 1472" run_2sock_test "multiple GRO socks" "${ipv4_args} -M 1 -s 14720 -S 0 " "-4 -n 1 -l 14720 -S 1472" echo "ipv6" run_test "no GRO" "${ipv6_args} -M 10 -s 1400" "-n 10 -l 1400" run_test "no GRO chk cmsg" "${ipv6_args} -M 10 -s 1400" "-n 10 -l 1400 -S -1" run_test "GRO" "${ipv6_args} -M 1 -s 14520 -S 0" "-n 1 -l 14520" run_test "GRO chk cmsg" "${ipv6_args} -M 1 -s 14520 -S 0" "-n 1 -l 14520 -S 1452" run_test "GRO with custom segment size" "${ipv6_args} -M 1 -s 14520 -S 500" "-n 1 -l 14520" run_test "GRO with custom segment size cmsg" "${ipv6_args} -M 1 -s 14520 -S 500" "-n 1 -l 14520 -S 500" run_nat_test "bad GRO lookup" "${ipv6_args} -M 1 -s 14520 -S 0" "-n 10 -l 1452" run_2sock_test "multiple GRO socks" "${ipv6_args} -M 1 -s 14520 -S 0 " "-n 1 -l 14520 -S 1452" } if [ ! -f ../bpf/xdp_dummy.o ]; then echo "Missing xdp_dummy helper. Build bpf selftest first" exit -1 fi if [[ $# -eq 0 ]]; then run_all elif [[ $1 == "__subprocess" ]]; then shift run_one $@ elif [[ $1 == "__subprocess_nat" ]]; then shift run_one_nat $@ elif [[ $1 == "__subprocess_2sock" ]]; then shift run_one_2sock $@ fi |