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usr
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linux-headers-6.8.0-83
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testing
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net
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udpgro.sh
#!/bin/bash # SPDX-License-Identifier: GPL-2.0 # # Run a series of udpgro functional tests. source net_helper.sh readonly PEER_NS="ns-peer-$(mktemp -u XXXXXX)" # set global exit status, but never reset nonzero one. check_err() { if [ $ret -eq 0 ]; then ret=$1 fi } cleanup() { local -r jobs="$(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 "${PEER_NS}" link set dev veth1 up ip netns exec "${PEER_NS}" ethtool -K veth1 gro on } 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=${all#*rx} local ret=0 cfg_veth ip netns exec "${PEER_NS}" ./udpgso_bench_rx -C 1000 -R 10 ${rx_args} & local PID1=$! wait_local_port_listen ${PEER_NS} 8000 udp ./udpgso_bench_tx ${tx_args} check_err $? wait ${PID1} check_err $? [ "$ret" -eq 0 ] && echo "ok" || echo "failed" return $ret } run_test() { local -r args=$@ 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} local ret=0 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 ${addr1} -n 0 & local PID1=$! ip netns exec "${PEER_NS}" ./udpgso_bench_rx -C 1000 -R 10 ${family} -b ${addr2%/*} ${rx_args} & local PID2=$! wait_local_port_listen "${PEER_NS}" 8000 udp ./udpgso_bench_tx ${tx_args} check_err $? kill -INT ${PID1} wait ${PID2} check_err $? [ "$ret" -eq 0 ] && echo "ok" || echo "failed" return $ret } run_one_2sock() { # use 'rx' as separator between sender args and receiver args local -r all="$@" local -r tx_args=${all%rx*} local -r rx_args=${all#*rx} local ret=0 cfg_veth ip netns exec "${PEER_NS}" ./udpgso_bench_rx -C 1000 -R 10 ${rx_args} -p 12345 & local PID1=$! ip netns exec "${PEER_NS}" ./udpgso_bench_rx -C 2000 -R 10 ${rx_args} & local PID2=$! wait_local_port_listen "${PEER_NS}" 12345 udp ./udpgso_bench_tx ${tx_args} -p 12345 check_err $? wait_local_port_listen "${PEER_NS}" 8000 udp ./udpgso_bench_tx ${tx_args} check_err $? wait ${PID1} check_err $? wait ${PID2} check_err $? [ "$ret" -eq 0 ] && echo "ok" || echo "failed" return $ret } run_nat_test() { local -r args=$@ 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="${core_args} -6 -D 2001:db8::1" ret=0 echo "ipv4" run_test "no GRO" "${ipv4_args} -M 10 -s 1400" "-4 -n 10 -l 1400" check_err $? # explicitly check we are not receiving UDP_SEGMENT cmsg (-S -1) # when GRO does not take place run_test "no GRO chk cmsg" "${ipv4_args} -M 10 -s 1400" "-4 -n 10 -l 1400 -S -1" check_err $? # the GSO packets are aggregated because: # * veth schedule napi after each xmit # * segmentation happens in BH context, veth napi poll is delayed after # the transmission of the last segment run_test "GRO" "${ipv4_args} -M 1 -s 14720 -S 0 " "-4 -n 1 -l 14720" check_err $? run_test "GRO chk cmsg" "${ipv4_args} -M 1 -s 14720 -S 0 " "-4 -n 1 -l 14720 -S 1472" check_err $? run_test "GRO with custom segment size" "${ipv4_args} -M 1 -s 14720 -S 500 " "-4 -n 1 -l 14720" check_err $? run_test "GRO with custom segment size cmsg" "${ipv4_args} -M 1 -s 14720 -S 500 " "-4 -n 1 -l 14720 -S 500" check_err $? run_nat_test "bad GRO lookup" "${ipv4_args} -M 1 -s 14720 -S 0" "-n 10 -l 1472" check_err $? run_2sock_test "multiple GRO socks" "${ipv4_args} -M 1 -s 14720 -S 0 " "-4 -n 1 -l 14720 -S 1472" check_err $? echo "ipv6" run_test "no GRO" "${ipv6_args} -M 10 -s 1400" "-n 10 -l 1400" check_err $? run_test "no GRO chk cmsg" "${ipv6_args} -M 10 -s 1400" "-n 10 -l 1400 -S -1" check_err $? run_test "GRO" "${ipv6_args} -M 1 -s 14520 -S 0" "-n 1 -l 14520" check_err $? run_test "GRO chk cmsg" "${ipv6_args} -M 1 -s 14520 -S 0" "-n 1 -l 14520 -S 1452" check_err $? run_test "GRO with custom segment size" "${ipv6_args} -M 1 -s 14520 -S 500" "-n 1 -l 14520" check_err $? run_test "GRO with custom segment size cmsg" "${ipv6_args} -M 1 -s 14520 -S 500" "-n 1 -l 14520 -S 500" check_err $? run_nat_test "bad GRO lookup" "${ipv6_args} -M 1 -s 14520 -S 0" "-n 10 -l 1452" check_err $? run_2sock_test "multiple GRO socks" "${ipv6_args} -M 1 -s 14520 -S 0 " "-n 1 -l 14520 -S 1452" check_err $? return $ret } 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 exit $?
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