diff options
Diffstat (limited to 'tools/testing/selftests/net/veth.sh')
| -rwxr-xr-x | tools/testing/selftests/net/veth.sh | 183 |
1 files changed, 182 insertions, 1 deletions
diff --git a/tools/testing/selftests/net/veth.sh b/tools/testing/selftests/net/veth.sh index 11d7cdb898c0..19eac3e44c06 100755 --- a/tools/testing/selftests/net/veth.sh +++ b/tools/testing/selftests/net/veth.sh @@ -13,7 +13,7 @@ readonly NS_DST=$BASE$DST readonly BM_NET_V4=192.168.1. readonly BM_NET_V6=2001:db8:: -readonly NPROCS=`nproc` +readonly CPUS=`nproc` ret=0 cleanup() { @@ -75,6 +75,29 @@ chk_tso_flag() { __chk_flag "$1" $2 $3 tcp-segmentation-offload } +chk_channels() { + local msg="$1" + local target=$2 + local rx=$3 + local tx=$4 + + local dev=veth$target + + local cur_rx=`ip netns exec $BASE$target ethtool -l $dev |\ + grep RX: | tail -n 1 | awk '{print $2}' ` + local cur_tx=`ip netns exec $BASE$target ethtool -l $dev |\ + grep TX: | tail -n 1 | awk '{print $2}'` + local cur_combined=`ip netns exec $BASE$target ethtool -l $dev |\ + grep Combined: | tail -n 1 | awk '{print $2}'` + + printf "%-60s" "$msg" + if [ "$cur_rx" = "$rx" -a "$cur_tx" = "$tx" -a "$cur_combined" = "n/a" ]; then + echo " ok " + else + echo " fail rx:$rx:$cur_rx tx:$tx:$cur_tx combined:n/a:$cur_combined" + fi +} + chk_gro() { local msg="$1" local expected=$2 @@ -107,11 +130,100 @@ chk_gro() { fi } +__change_channels() +{ + local cur_cpu + local end=$1 + local cur + local i + + while true; do + printf -v cur '%(%s)T' + [ $cur -le $end ] || break + + for i in `seq 1 $CPUS`; do + ip netns exec $NS_SRC ethtool -L veth$SRC rx $i tx $i + ip netns exec $NS_DST ethtool -L veth$DST rx $i tx $i + done + + for i in `seq 1 $((CPUS - 1))`; do + cur_cpu=$((CPUS - $i)) + ip netns exec $NS_SRC ethtool -L veth$SRC rx $cur_cpu tx $cur_cpu + ip netns exec $NS_DST ethtool -L veth$DST rx $cur_cpu tx $cur_cpu + done + done +} + +__send_data() { + local end=$1 + + while true; do + printf -v cur '%(%s)T' + [ $cur -le $end ] || break + + ip netns exec $NS_SRC ./udpgso_bench_tx -4 -s 1000 -M 300 -D $BM_NET_V4$DST + done +} + +do_stress() { + local end + printf -v end '%(%s)T' + end=$((end + $STRESS)) + + ip netns exec $NS_SRC ethtool -L veth$SRC rx 3 tx 3 + ip netns exec $NS_DST ethtool -L veth$DST rx 3 tx 3 + + ip netns exec $NS_DST ./udpgso_bench_rx & + local rx_pid=$! + + echo "Running stress test for $STRESS seconds..." + __change_channels $end & + local ch_pid=$! + __send_data $end & + local data_pid_1=$! + __send_data $end & + local data_pid_2=$! + __send_data $end & + local data_pid_3=$! + __send_data $end & + local data_pid_4=$! + + wait $ch_pid $data_pid_1 $data_pid_2 $data_pid_3 $data_pid_4 + kill -9 $rx_pid + echo "done" + + # restore previous setting + ip netns exec $NS_SRC ethtool -L veth$SRC rx 2 tx 2 + ip netns exec $NS_DST ethtool -L veth$DST rx 2 tx 1 +} + +usage() { + echo "Usage: $0 [-h] [-s <seconds>]" + echo -e "\t-h: show this help" + echo -e "\t-s: run optional stress tests for the given amount of seconds" +} + +STRESS=0 +while getopts "hs:" option; do + case "$option" in + "h") + usage $0 + exit 0 + ;; + "s") + STRESS=$OPTARG + ;; + esac +done + if [ ! -f ../bpf/xdp_dummy.o ]; then echo "Missing xdp_dummy helper. Build bpf selftest first" exit 1 fi +[ $CPUS -lt 2 ] && echo "Only one CPU available, some tests will be skipped" +[ $STRESS -gt 0 -a $CPUS -lt 3 ] && echo " stress test will be skipped, too" + create_ns chk_gro_flag "default - gro flag" $SRC off chk_gro_flag " - peer gro flag" $DST off @@ -134,6 +246,8 @@ chk_gro " - aggregation with TSO off" 1 cleanup create_ns +chk_channels "default channels" $DST 1 1 + ip -n $NS_DST link set dev veth$DST down ip netns exec $NS_DST ethtool -K veth$DST gro on chk_gro_flag "with gro enabled on link down - gro flag" $DST on @@ -147,6 +261,56 @@ chk_gro " - aggregation with TSO off" 1 cleanup create_ns + +CUR_TX=1 +CUR_RX=1 +if [ $CPUS -gt 1 ]; then + ip netns exec $NS_DST ethtool -L veth$DST tx 2 + chk_channels "setting tx channels" $DST 1 2 + CUR_TX=2 +fi + +if [ $CPUS -gt 2 ]; then + ip netns exec $NS_DST ethtool -L veth$DST rx 3 tx 3 + chk_channels "setting both rx and tx channels" $DST 3 3 + CUR_RX=3 + CUR_TX=3 +fi + +ip netns exec $NS_DST ethtool -L veth$DST combined 2 2>/dev/null +chk_channels "bad setting: combined channels" $DST $CUR_RX $CUR_TX + +ip netns exec $NS_DST ethtool -L veth$DST tx $((CPUS + 1)) 2>/dev/null +chk_channels "setting invalid channels nr" $DST $CUR_RX $CUR_TX + +if [ $CPUS -gt 1 ]; then + # this also tests queues nr reduction + ip netns exec $NS_DST ethtool -L veth$DST rx 1 tx 2 2>/dev/null + ip netns exec $NS_SRC ethtool -L veth$SRC rx 1 tx 2 2>/dev/null + printf "%-60s" "bad setting: XDP with RX nr less than TX" + ip -n $NS_DST link set dev veth$DST xdp object ../bpf/xdp_dummy.o \ + section xdp_dummy 2>/dev/null &&\ + echo "fail - set operation successful ?!?" || echo " ok " + + # the following tests will run with multiple channels active + ip netns exec $NS_SRC ethtool -L veth$SRC rx 2 + ip netns exec $NS_DST ethtool -L veth$DST rx 2 + ip -n $NS_DST link set dev veth$DST xdp object ../bpf/xdp_dummy.o \ + section xdp_dummy 2>/dev/null + printf "%-60s" "bad setting: reducing RX nr below peer TX with XDP set" + ip netns exec $NS_DST ethtool -L veth$DST rx 1 2>/dev/null &&\ + echo "fail - set operation successful ?!?" || echo " ok " + CUR_RX=2 + CUR_TX=2 +fi + +if [ $CPUS -gt 2 ]; then + printf "%-60s" "bad setting: increasing peer TX nr above RX with XDP set" + ip netns exec $NS_SRC ethtool -L veth$SRC tx 3 2>/dev/null &&\ + echo "fail - set operation successful ?!?" || echo " ok " + chk_channels "setting invalid channels nr" $DST 2 2 +fi + ip -n $NS_DST link set dev veth$DST xdp object ../bpf/xdp_dummy.o section xdp_dummy 2>/dev/null chk_gro_flag "with xdp attached - gro flag" $DST on chk_gro_flag " - peer gro flag" $SRC off @@ -167,10 +331,27 @@ chk_gro_flag " - after gro on xdp off, gro flag" $DST on chk_gro_flag " - peer gro flag" $SRC off chk_tso_flag " - tso flag" $SRC on chk_tso_flag " - peer tso flag" $DST on + +if [ $CPUS -gt 1 ]; then + ip netns exec $NS_DST ethtool -L veth$DST tx 1 + chk_channels "decreasing tx channels with device down" $DST 2 1 +fi + ip -n $NS_DST link set dev veth$DST up ip -n $NS_SRC link set dev veth$SRC up chk_gro " - aggregation" 1 +if [ $CPUS -gt 1 ]; then + [ $STRESS -gt 0 -a $CPUS -gt 2 ] && do_stress + + ip -n $NS_DST link set dev veth$DST down + ip -n $NS_SRC link set dev veth$SRC down + ip netns exec $NS_DST ethtool -L veth$DST tx 2 + chk_channels "increasing tx channels with device down" $DST 2 2 + ip -n $NS_DST link set dev veth$DST up + ip -n $NS_SRC link set dev veth$SRC up +fi + ip netns exec $NS_DST ethtool -K veth$DST gro off ip netns exec $NS_SRC ethtool -K veth$SRC tx-udp-segmentation off chk_gro "aggregation again with default and TSO off" 10 |