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302e57f809
After commitafef88e655("selftests/bpf: Store BPF object files with .bpf.o extension"), we should use xdp_dummy.bpf.o instade of xdp_dummy.o. In addition, use the BPF_FILE variable to save the BPF object file name, which can be better identified and modified. Fixes:afef88e655("selftests/bpf: Store BPF object files with .bpf.o extension") Signed-off-by: Wang Yufen <wangyufen@huawei.com> Cc: Daniel Müller <deso@posteo.net> Signed-off-by: David S. Miller <davem@davemloft.net>
361 lines
9.4 KiB
Bash
Executable File
361 lines
9.4 KiB
Bash
Executable File
#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0
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BPF_FILE="../bpf/xdp_dummy.bpf.o"
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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$DST
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# "baremetal" network used for raw UDP traffic
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readonly BM_NET_V4=192.168.1.
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readonly BM_NET_V6=2001:db8::
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readonly CPUS=`nproc`
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ret=0
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cleanup() {
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local ns
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local jobs
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readonly jobs="$(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_channels() {
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local msg="$1"
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local target=$2
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local rx=$3
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local tx=$4
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local dev=veth$target
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local cur_rx=`ip netns exec $BASE$target ethtool -l $dev |\
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grep RX: | tail -n 1 | awk '{print $2}' `
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local cur_tx=`ip netns exec $BASE$target ethtool -l $dev |\
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grep TX: | tail -n 1 | awk '{print $2}'`
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local cur_combined=`ip netns exec $BASE$target ethtool -l $dev |\
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grep Combined: | tail -n 1 | awk '{print $2}'`
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printf "%-60s" "$msg"
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if [ "$cur_rx" = "$rx" -a "$cur_tx" = "$tx" -a "$cur_combined" = "n/a" ]; then
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echo " ok "
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else
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echo " fail rx:$rx:$cur_rx tx:$tx:$cur_tx combined:n/a:$cur_combined"
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fi
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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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__change_channels()
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{
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local cur_cpu
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local end=$1
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local cur
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local i
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while true; do
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printf -v cur '%(%s)T'
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[ $cur -le $end ] || break
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for i in `seq 1 $CPUS`; do
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ip netns exec $NS_SRC ethtool -L veth$SRC rx $i tx $i
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ip netns exec $NS_DST ethtool -L veth$DST rx $i tx $i
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done
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for i in `seq 1 $((CPUS - 1))`; do
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cur_cpu=$((CPUS - $i))
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ip netns exec $NS_SRC ethtool -L veth$SRC rx $cur_cpu tx $cur_cpu
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ip netns exec $NS_DST ethtool -L veth$DST rx $cur_cpu tx $cur_cpu
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done
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done
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}
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__send_data() {
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local end=$1
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while true; do
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printf -v cur '%(%s)T'
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[ $cur -le $end ] || break
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ip netns exec $NS_SRC ./udpgso_bench_tx -4 -s 1000 -M 300 -D $BM_NET_V4$DST
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done
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}
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do_stress() {
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local end
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printf -v end '%(%s)T'
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end=$((end + $STRESS))
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ip netns exec $NS_SRC ethtool -L veth$SRC rx 3 tx 3
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ip netns exec $NS_DST ethtool -L veth$DST rx 3 tx 3
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ip netns exec $NS_DST ./udpgso_bench_rx &
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local rx_pid=$!
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echo "Running stress test for $STRESS seconds..."
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__change_channels $end &
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local ch_pid=$!
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__send_data $end &
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local data_pid_1=$!
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__send_data $end &
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local data_pid_2=$!
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__send_data $end &
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local data_pid_3=$!
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__send_data $end &
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local data_pid_4=$!
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wait $ch_pid $data_pid_1 $data_pid_2 $data_pid_3 $data_pid_4
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kill -9 $rx_pid
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echo "done"
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# restore previous setting
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ip netns exec $NS_SRC ethtool -L veth$SRC rx 2 tx 2
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ip netns exec $NS_DST ethtool -L veth$DST rx 2 tx 1
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}
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usage() {
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echo "Usage: $0 [-h] [-s <seconds>]"
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echo -e "\t-h: show this help"
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echo -e "\t-s: run optional stress tests for the given amount of seconds"
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}
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STRESS=0
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while getopts "hs:" option; do
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case "$option" in
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"h")
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usage $0
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exit 0
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;;
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"s")
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STRESS=$OPTARG
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;;
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esac
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done
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if [ ! -f ${BPF_FILE} ]; then
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echo "Missing ${BPF_FILE}. Build bpf selftest first"
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exit 1
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fi
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[ $CPUS -lt 2 ] && echo "Only one CPU available, some tests will be skipped"
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[ $STRESS -gt 0 -a $CPUS -lt 3 ] && echo " stress test will be skipped, too"
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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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chk_channels "default channels" $DST 1 1
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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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CUR_TX=1
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CUR_RX=1
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if [ $CPUS -gt 1 ]; then
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ip netns exec $NS_DST ethtool -L veth$DST tx 2
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chk_channels "setting tx channels" $DST 1 2
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CUR_TX=2
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fi
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if [ $CPUS -gt 2 ]; then
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ip netns exec $NS_DST ethtool -L veth$DST rx 3 tx 3
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chk_channels "setting both rx and tx channels" $DST 3 3
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CUR_RX=3
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CUR_TX=3
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fi
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ip netns exec $NS_DST ethtool -L veth$DST combined 2 2>/dev/null
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chk_channels "bad setting: combined channels" $DST $CUR_RX $CUR_TX
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ip netns exec $NS_DST ethtool -L veth$DST tx $((CPUS + 1)) 2>/dev/null
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chk_channels "setting invalid channels nr" $DST $CUR_RX $CUR_TX
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if [ $CPUS -gt 1 ]; then
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# this also tests queues nr reduction
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ip netns exec $NS_DST ethtool -L veth$DST rx 1 tx 2 2>/dev/null
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ip netns exec $NS_SRC ethtool -L veth$SRC rx 1 tx 2 2>/dev/null
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printf "%-60s" "bad setting: XDP with RX nr less than TX"
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ip -n $NS_DST link set dev veth$DST xdp object ${BPF_FILE} \
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section xdp 2>/dev/null &&\
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echo "fail - set operation successful ?!?" || echo " ok "
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# the following tests will run with multiple channels active
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ip netns exec $NS_SRC ethtool -L veth$SRC rx 2
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ip netns exec $NS_DST ethtool -L veth$DST rx 2
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ip -n $NS_DST link set dev veth$DST xdp object ${BPF_FILE} \
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section xdp 2>/dev/null
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printf "%-60s" "bad setting: reducing RX nr below peer TX with XDP set"
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ip netns exec $NS_DST ethtool -L veth$DST rx 1 2>/dev/null &&\
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echo "fail - set operation successful ?!?" || echo " ok "
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CUR_RX=2
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CUR_TX=2
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fi
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if [ $CPUS -gt 2 ]; then
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printf "%-60s" "bad setting: increasing peer TX nr above RX with XDP set"
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ip netns exec $NS_SRC ethtool -L veth$SRC tx 3 2>/dev/null &&\
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echo "fail - set operation successful ?!?" || echo " ok "
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chk_channels "setting invalid channels nr" $DST 2 2
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fi
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ip -n $NS_DST link set dev veth$DST xdp object ${BPF_FILE} section xdp 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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if [ $CPUS -gt 1 ]; then
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ip netns exec $NS_DST ethtool -L veth$DST tx 1
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chk_channels "decreasing tx channels with device down" $DST 2 1
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fi
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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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if [ $CPUS -gt 1 ]; then
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[ $STRESS -gt 0 -a $CPUS -gt 2 ] && do_stress
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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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ip netns exec $NS_DST ethtool -L veth$DST tx 2
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chk_channels "increasing tx channels with device down" $DST 2 2
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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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fi
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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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