linux/tools/testing/selftests/net/udpgro_bench.sh
Paolo Abeni 98cb12eb52 selftests: net: remove dependency on ebpf tests
Several net tests requires an XDP program build under the ebpf
directory, and error out if such program is not available.

That makes running successful net test hard, let's duplicate into the
net dir the [very small] program, re-using the existing rules to build
it, and finally dropping the bogus dependency.

Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://lore.kernel.org/r/28e7af7c031557f691dc8045ee41dd549dd5e74c.1706131762.git.pabeni@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-25 15:59:22 -08:00

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#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
#
# Run a series of udpgro benchmarks
source net_helper.sh
readonly PEER_NS="ns-peer-$(mktemp -u XXXXXX)"
BPF_FILE="xdp_dummy.o"
cleanup() {
local -r jobs="$(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}
[[ "${tx_args}" == *"-4"* ]] && rx_args="${rx_args} -4"
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 ${BPF_FILE} section xdp
ip netns exec "${PEER_NS}" ./udpgso_bench_rx ${rx_args} -r &
ip netns exec "${PEER_NS}" ./udpgso_bench_rx -t ${rx_args} -r &
wait_local_port_listen "${PEER_NS}" 8000 udp
./udpgso_bench_tx ${tx_args}
}
run_in_netns() {
local -r args=$@
./in_netns.sh $0 __subprocess ${args}
}
run_udp() {
local -r args=$@
echo "udp gso - over veth touching data"
run_in_netns ${args} -S 0 rx
echo "udp gso and gro - over veth touching data"
run_in_netns ${args} -S 0 rx -G
}
run_tcp() {
local -r args=$@
echo "tcp - over veth touching data"
run_in_netns ${args} -t rx
}
run_all() {
local -r core_args="-l 4"
local -r ipv4_args="${core_args} -4 -D 192.168.1.1"
local -r ipv6_args="${core_args} -6 -D 2001:db8::1"
echo "ipv4"
run_tcp "${ipv4_args}"
run_udp "${ipv4_args}"
echo "ipv6"
run_tcp "${ipv4_args}"
run_udp "${ipv6_args}"
}
if [ ! -f ${BPF_FILE} ]; then
echo "Missing ${BPF_FILE}. Run 'make' first"
exit -1
fi
if [[ $# -eq 0 ]]; then
run_all
elif [[ $1 == "__subprocess" ]]; then
shift
run_one $@
else
run_in_netns $@
fi