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self-tests: add veth tests
Add some basic veth tests, that verify the expected flags and aggregation with different setups (default, xdp, etc...) Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
parent
47e550e010
commit
1c3cadbe02
@ -24,6 +24,7 @@ TEST_PROGS += vrf_route_leaking.sh
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TEST_PROGS += bareudp.sh
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TEST_PROGS += unicast_extensions.sh
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TEST_PROGS += udpgro_fwd.sh
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TEST_PROGS += veth.sh
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TEST_PROGS_EXTENDED := in_netns.sh
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TEST_GEN_FILES = socket nettest
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TEST_GEN_FILES += psock_fanout psock_tpacket msg_zerocopy reuseport_addr_any
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177
tools/testing/selftests/net/veth.sh
Executable file
177
tools/testing/selftests/net/veth.sh
Executable file
@ -0,0 +1,177 @@
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#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0
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readonly STATS="$(mktemp -p /tmp ns-XXXXXX)"
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readonly BASE=`basename $STATS`
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readonly SRC=2
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readonly DST=1
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readonly DST_NAT=100
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readonly NS_SRC=$BASE$SRC
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readonly NS_DST=$BASE$DST
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# "baremetal" network used for raw UDP traffic
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readonly BM_NET_V4=192.168.1.
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readonly BM_NET_V6=2001:db8::
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readonly NPROCS=`nproc`
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ret=0
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cleanup() {
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local ns
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local -r jobs="$(jobs -p)"
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[ -n "${jobs}" ] && kill -1 ${jobs} 2>/dev/null
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rm -f $STATS
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for ns in $NS_SRC $NS_DST; do
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ip netns del $ns 2>/dev/null
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done
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}
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trap cleanup EXIT
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create_ns() {
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local ns
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for ns in $NS_SRC $NS_DST; do
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ip netns add $ns
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ip -n $ns link set dev lo up
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done
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ip link add name veth$SRC type veth peer name veth$DST
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for ns in $SRC $DST; do
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ip link set dev veth$ns netns $BASE$ns up
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ip -n $BASE$ns addr add dev veth$ns $BM_NET_V4$ns/24
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ip -n $BASE$ns addr add dev veth$ns $BM_NET_V6$ns/64 nodad
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done
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echo "#kernel" > $BASE
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chmod go-rw $BASE
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}
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__chk_flag() {
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local msg="$1"
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local target=$2
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local expected=$3
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local flagname=$4
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local flag=`ip netns exec $BASE$target ethtool -k veth$target |\
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grep $flagname | awk '{print $2}'`
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printf "%-60s" "$msg"
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if [ "$flag" = "$expected" ]; then
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echo " ok "
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else
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echo " fail - expected $expected found $flag"
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ret=1
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fi
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}
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chk_gro_flag() {
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__chk_flag "$1" $2 $3 generic-receive-offload
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}
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chk_tso_flag() {
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__chk_flag "$1" $2 $3 tcp-segmentation-offload
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}
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chk_gro() {
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local msg="$1"
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local expected=$2
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ip netns exec $BASE$SRC ping -qc 1 $BM_NET_V4$DST >/dev/null
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NSTAT_HISTORY=$STATS ip netns exec $NS_DST nstat -n
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printf "%-60s" "$msg"
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ip netns exec $BASE$DST ./udpgso_bench_rx -C 1000 -R 10 &
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local spid=$!
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sleep 0.1
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ip netns exec $NS_SRC ./udpgso_bench_tx -4 -s 13000 -S 1300 -M 1 -D $BM_NET_V4$DST
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local retc=$?
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wait $spid
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local rets=$?
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if [ ${rets} -ne 0 ] || [ ${retc} -ne 0 ]; then
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echo " fail client exit code $retc, server $rets"
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ret=1
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return
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fi
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local pkts=`NSTAT_HISTORY=$STATS ip netns exec $NS_DST nstat IpInReceives | \
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awk '{print $2}' | tail -n 1`
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if [ "$pkts" = "$expected" ]; then
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echo " ok "
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else
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echo " fail - got $pkts packets, expected $expected "
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ret=1
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fi
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}
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if [ ! -f ../bpf/xdp_dummy.o ]; then
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echo "Missing xdp_dummy helper. Build bpf selftest first"
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exit -1
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fi
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create_ns
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chk_gro_flag "default - gro flag" $SRC off
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chk_gro_flag " - peer gro flag" $DST off
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chk_tso_flag " - tso flag" $SRC on
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chk_tso_flag " - peer tso flag" $DST on
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chk_gro " - aggregation" 1
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ip netns exec $NS_SRC ethtool -K veth$SRC tx-udp-segmentation off
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chk_gro " - aggregation with TSO off" 10
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cleanup
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create_ns
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ip netns exec $NS_DST ethtool -K veth$DST gro on
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chk_gro_flag "with gro on - gro flag" $DST on
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chk_gro_flag " - peer gro flag" $SRC off
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chk_tso_flag " - tso flag" $SRC on
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chk_tso_flag " - peer tso flag" $DST on
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ip netns exec $NS_SRC ethtool -K veth$SRC tx-udp-segmentation off
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ip netns exec $NS_DST ethtool -K veth$DST rx-udp-gro-forwarding on
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chk_gro " - aggregation with TSO off" 1
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cleanup
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create_ns
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ip -n $NS_DST link set dev veth$DST down
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ip netns exec $NS_DST ethtool -K veth$DST gro on
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chk_gro_flag "with gro enabled on link down - gro flag" $DST on
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chk_gro_flag " - peer gro flag" $SRC off
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chk_tso_flag " - tso flag" $SRC on
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chk_tso_flag " - peer tso flag" $DST on
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ip -n $NS_DST link set dev veth$DST up
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ip netns exec $NS_SRC ethtool -K veth$SRC tx-udp-segmentation off
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ip netns exec $NS_DST ethtool -K veth$DST rx-udp-gro-forwarding on
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chk_gro " - aggregation with TSO off" 1
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cleanup
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create_ns
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ip -n $NS_DST link set dev veth$DST xdp object ../bpf/xdp_dummy.o section xdp_dummy 2>/dev/null
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chk_gro_flag "with xdp attached - gro flag" $DST on
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chk_gro_flag " - peer gro flag" $SRC off
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chk_tso_flag " - tso flag" $SRC off
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chk_tso_flag " - peer tso flag" $DST on
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ip netns exec $NS_DST ethtool -K veth$DST rx-udp-gro-forwarding on
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chk_gro " - aggregation" 1
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ip -n $NS_DST link set dev veth$DST down
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ip -n $NS_SRC link set dev veth$SRC down
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chk_gro_flag " - after dev off, flag" $DST on
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chk_gro_flag " - peer flag" $SRC off
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ip netns exec $NS_DST ethtool -K veth$DST gro on
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ip -n $NS_DST link set dev veth$DST xdp off
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chk_gro_flag " - after gro on xdp off, gro flag" $DST on
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chk_gro_flag " - peer gro flag" $SRC off
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chk_tso_flag " - tso flag" $SRC on
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chk_tso_flag " - peer tso flag" $DST on
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ip -n $NS_DST link set dev veth$DST up
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ip -n $NS_SRC link set dev veth$SRC up
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chk_gro " - aggregation" 1
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ip netns exec $NS_DST ethtool -K veth$DST gro off
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ip netns exec $NS_SRC ethtool -K veth$SRC tx-udp-segmentation off
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chk_gro "aggregation again with default and TSO off" 10
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exit $ret
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