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#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
#
# Run a series of udpgro benchmarks
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 -INT ${jobs} 2>/dev/null
[ -n "$ns" ] && ip netns del $ns 2>/dev/null
}
trap cleanup EXIT
run_one() {
# use 'rx' as separator between sender args and receiver args
local -r all="$@"
local -r tx_args=${all%rx*}
local rx_args=${all#*rx}
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 "${PEER_NS}" ethtool -K veth1 rx-gro-list on
ip -n "${PEER_NS}" link set veth1 xdp object ../bpf/xdp_dummy.o section xdp_dummy
tc -n "${PEER_NS}" qdisc add dev veth1 clsact
tc -n "${PEER_NS}" filter add dev veth1 ingress prio 4 protocol ipv6 bpf object-file ../bpf/nat6to4.o section schedcls/ingress6/nat_6 direct-action
tc -n "${PEER_NS}" filter add dev veth1 egress prio 4 protocol ip bpf object-file ../bpf/nat6to4.o section schedcls/egress4/snat4 direct-action
echo ${rx_args}
ip netns exec "${PEER_NS}" ./udpgso_bench_rx ${rx_args} -r &
# Hack: let bg programs complete the startup
sleep 0.1
./udpgso_bench_tx ${tx_args}
}
run_in_netns() {
local -r args=$@
echo ${args}
./in_netns.sh $0 __subprocess ${args}
}
run_udp() {
local -r args=$@
echo "udp gso - over veth touching data"
run_in_netns ${args} -u -S 0 rx -4 -v
echo "udp gso and gro - over veth touching data"
run_in_netns ${args} -S 0 rx -4 -G
}
run_tcp() {
local -r args=$@
echo "tcp - over veth touching data"
run_in_netns ${args} -t rx -4 -t
}
run_all() {
local -r core_args="-l 4"
local -r ipv4_args="${core_args} -4 -D 192.168.1.1"
local -r ipv6_args="${core_args} -6 -D 2001:db8::1"
echo "ipv6"
run_tcp "${ipv6_args}"
run_udp "${ipv6_args}"
}
if [ ! -f ../bpf/xdp_dummy.o ]; then
echo "Missing xdp_dummy helper. Build bpf selftest first"
exit -1
fi
if [ ! -f bpf/nat6to4.o ]; then
echo "Missing nat6to4 helper. Build bpfnat6to4.o selftest first"
exit -1
fi
if [[ $# -eq 0 ]]; then
run_all
elif [[ $1 == "__subprocess" ]]; then
shift
run_one $@
else
run_in_netns $@
fi
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