2 # SPDX-License-Identifier: GPL-2.0
5 readonly STATS="$(mktemp -p /tmp ns-XXXXXX)"
6 readonly BASE=`basename $STATS`
10 readonly NS_SRC=$BASE$SRC
11 readonly NS_DST=$BASE$DST
13 # "baremetal" network used for raw UDP traffic
14 readonly BM_NET_V4=192.168.1.
15 readonly BM_NET_V6=2001:db8::
23 readonly jobs="$(jobs -p)"
24 [ -n "${jobs}" ] && kill -1 ${jobs} 2>/dev/null
27 for ns in $NS_SRC $NS_DST; do
28 ip netns del $ns 2>/dev/null
37 for ns in $NS_SRC $NS_DST; do
39 ip -n $ns link set dev lo up
42 ip link add name veth$SRC type veth peer name veth$DST
44 for ns in $SRC $DST; do
45 ip link set dev veth$ns netns $BASE$ns up
46 ip -n $BASE$ns addr add dev veth$ns $BM_NET_V4$ns/24
47 ip -n $BASE$ns addr add dev veth$ns $BM_NET_V6$ns/64 nodad
49 echo "#kernel" > $BASE
59 local flag=`ip netns exec $BASE$target ethtool -k veth$target |\
60 grep $flagname | awk '{print $2}'`
63 if [ "$flag" = "$expected" ]; then
66 echo " fail - expected $expected found $flag"
72 __chk_flag "$1" $2 $3 generic-receive-offload
76 __chk_flag "$1" $2 $3 tcp-segmentation-offload
87 local cur_rx=`ip netns exec $BASE$target ethtool -l $dev |\
88 grep RX: | tail -n 1 | awk '{print $2}' `
89 local cur_tx=`ip netns exec $BASE$target ethtool -l $dev |\
90 grep TX: | tail -n 1 | awk '{print $2}'`
91 local cur_combined=`ip netns exec $BASE$target ethtool -l $dev |\
92 grep Combined: | tail -n 1 | awk '{print $2}'`
95 if [ "$cur_rx" = "$rx" -a "$cur_tx" = "$tx" -a "$cur_combined" = "n/a" ]; then
98 echo " fail rx:$rx:$cur_rx tx:$tx:$cur_tx combined:n/a:$cur_combined"
106 ip netns exec $BASE$SRC ping -qc 1 $BM_NET_V4$DST >/dev/null
107 NSTAT_HISTORY=$STATS ip netns exec $NS_DST nstat -n
109 printf "%-60s" "$msg"
110 ip netns exec $BASE$DST ./udpgso_bench_rx -C 1000 -R 10 &
114 ip netns exec $NS_SRC ./udpgso_bench_tx -4 -s 13000 -S 1300 -M 1 -D $BM_NET_V4$DST
118 if [ ${rets} -ne 0 ] || [ ${retc} -ne 0 ]; then
119 echo " fail client exit code $retc, server $rets"
124 local pkts=`NSTAT_HISTORY=$STATS ip netns exec $NS_DST nstat IpInReceives | \
125 awk '{print $2}' | tail -n 1`
126 if [ "$pkts" = "$expected" ]; then
129 echo " fail - got $pkts packets, expected $expected "
142 printf -v cur '%(%s)T'
143 [ $cur -le $end ] || break
145 for i in `seq 1 $CPUS`; do
146 ip netns exec $NS_SRC ethtool -L veth$SRC rx $i tx $i
147 ip netns exec $NS_DST ethtool -L veth$DST rx $i tx $i
150 for i in `seq 1 $((CPUS - 1))`; do
151 cur_cpu=$((CPUS - $i))
152 ip netns exec $NS_SRC ethtool -L veth$SRC rx $cur_cpu tx $cur_cpu
153 ip netns exec $NS_DST ethtool -L veth$DST rx $cur_cpu tx $cur_cpu
162 printf -v cur '%(%s)T'
163 [ $cur -le $end ] || break
165 ip netns exec $NS_SRC ./udpgso_bench_tx -4 -s 1000 -M 300 -D $BM_NET_V4$DST
171 printf -v end '%(%s)T'
172 end=$((end + $STRESS))
174 ip netns exec $NS_SRC ethtool -L veth$SRC rx 3 tx 3
175 ip netns exec $NS_DST ethtool -L veth$DST rx 3 tx 3
177 ip netns exec $NS_DST ./udpgso_bench_rx &
180 echo "Running stress test for $STRESS seconds..."
181 __change_channels $end &
192 wait $ch_pid $data_pid_1 $data_pid_2 $data_pid_3 $data_pid_4
196 # restore previous setting
197 ip netns exec $NS_SRC ethtool -L veth$SRC rx 2 tx 2
198 ip netns exec $NS_DST ethtool -L veth$DST rx 2 tx 1
202 echo "Usage: $0 [-h] [-s <seconds>]"
203 echo -e "\t-h: show this help"
204 echo -e "\t-s: run optional stress tests for the given amount of seconds"
208 while getopts "hs:" option; do
220 if [ ! -f ${BPF_FILE} ]; then
221 echo "Missing ${BPF_FILE}. Run 'make' first"
225 [ $CPUS -lt 2 ] && echo "Only one CPU available, some tests will be skipped"
226 [ $STRESS -gt 0 -a $CPUS -lt 3 ] && echo " stress test will be skipped, too"
229 chk_gro_flag "default - gro flag" $SRC off
230 chk_gro_flag " - peer gro flag" $DST off
231 chk_tso_flag " - tso flag" $SRC on
232 chk_tso_flag " - peer tso flag" $DST on
233 chk_gro " - aggregation" 1
234 ip netns exec $NS_SRC ethtool -K veth$SRC tx-udp-segmentation off
235 chk_gro " - aggregation with TSO off" 10
239 ip netns exec $NS_DST ethtool -K veth$DST gro on
240 chk_gro_flag "with gro on - gro flag" $DST on
241 chk_gro_flag " - peer gro flag" $SRC off
242 chk_tso_flag " - tso flag" $SRC on
243 chk_tso_flag " - peer tso flag" $DST on
244 ip netns exec $NS_SRC ethtool -K veth$SRC tx-udp-segmentation off
245 ip netns exec $NS_DST ethtool -K veth$DST rx-udp-gro-forwarding on
246 chk_gro " - aggregation with TSO off" 1
250 ip -n $NS_DST link set dev veth$DST up
251 ip -n $NS_DST link set dev veth$DST xdp object ${BPF_FILE} section xdp
252 chk_gro_flag "gro vs xdp while down - gro flag on" $DST on
253 ip -n $NS_DST link set dev veth$DST down
254 chk_gro_flag " - after down" $DST on
255 ip -n $NS_DST link set dev veth$DST xdp off
256 chk_gro_flag " - after xdp off" $DST off
257 ip -n $NS_DST link set dev veth$DST up
258 chk_gro_flag " - after up" $DST off
259 ip -n $NS_SRC link set dev veth$SRC xdp object ${BPF_FILE} section xdp
260 chk_gro_flag " - after peer xdp" $DST off
264 chk_channels "default channels" $DST 1 1
266 ip -n $NS_DST link set dev veth$DST down
267 ip netns exec $NS_DST ethtool -K veth$DST gro on
268 chk_gro_flag "with gro enabled on link down - gro flag" $DST on
269 chk_gro_flag " - peer gro flag" $SRC off
270 chk_tso_flag " - tso flag" $SRC on
271 chk_tso_flag " - peer tso flag" $DST on
272 ip -n $NS_DST link set dev veth$DST up
273 ip netns exec $NS_SRC ethtool -K veth$SRC tx-udp-segmentation off
274 ip netns exec $NS_DST ethtool -K veth$DST rx-udp-gro-forwarding on
275 chk_gro " - aggregation with TSO off" 1
282 if [ $CPUS -gt 1 ]; then
283 ip netns exec $NS_DST ethtool -L veth$DST tx 2
284 chk_channels "setting tx channels" $DST 1 2
288 if [ $CPUS -gt 2 ]; then
289 ip netns exec $NS_DST ethtool -L veth$DST rx 3 tx 3
290 chk_channels "setting both rx and tx channels" $DST 3 3
295 ip netns exec $NS_DST ethtool -L veth$DST combined 2 2>/dev/null
296 chk_channels "bad setting: combined channels" $DST $CUR_RX $CUR_TX
298 ip netns exec $NS_DST ethtool -L veth$DST tx $((CPUS + 1)) 2>/dev/null
299 chk_channels "setting invalid channels nr" $DST $CUR_RX $CUR_TX
301 if [ $CPUS -gt 1 ]; then
302 # this also tests queues nr reduction
303 ip netns exec $NS_DST ethtool -L veth$DST rx 1 tx 2 2>/dev/null
304 ip netns exec $NS_SRC ethtool -L veth$SRC rx 1 tx 2 2>/dev/null
305 printf "%-60s" "bad setting: XDP with RX nr less than TX"
306 ip -n $NS_DST link set dev veth$DST xdp object ${BPF_FILE} \
307 section xdp 2>/dev/null &&\
308 echo "fail - set operation successful ?!?" || echo " ok "
310 # the following tests will run with multiple channels active
311 ip netns exec $NS_SRC ethtool -L veth$SRC rx 2
312 ip netns exec $NS_DST ethtool -L veth$DST rx 2
313 ip -n $NS_DST link set dev veth$DST xdp object ${BPF_FILE} \
314 section xdp 2>/dev/null
315 printf "%-60s" "bad setting: reducing RX nr below peer TX with XDP set"
316 ip netns exec $NS_DST ethtool -L veth$DST rx 1 2>/dev/null &&\
317 echo "fail - set operation successful ?!?" || echo " ok "
322 if [ $CPUS -gt 2 ]; then
323 printf "%-60s" "bad setting: increasing peer TX nr above RX with XDP set"
324 ip netns exec $NS_SRC ethtool -L veth$SRC tx 3 2>/dev/null &&\
325 echo "fail - set operation successful ?!?" || echo " ok "
326 chk_channels "setting invalid channels nr" $DST 2 2
329 ip -n $NS_DST link set dev veth$DST xdp object ${BPF_FILE} section xdp 2>/dev/null
330 chk_gro_flag "with xdp attached - gro flag" $DST on
331 chk_gro_flag " - peer gro flag" $SRC off
332 chk_tso_flag " - tso flag" $SRC off
333 chk_tso_flag " - peer tso flag" $DST on
334 ip netns exec $NS_DST ethtool -K veth$DST rx-udp-gro-forwarding on
335 chk_gro " - aggregation" 1
338 ip -n $NS_DST link set dev veth$DST down
339 ip -n $NS_SRC link set dev veth$SRC down
340 chk_gro_flag " - after dev off, flag" $DST on
341 chk_gro_flag " - peer flag" $SRC off
343 ip netns exec $NS_DST ethtool -K veth$DST gro on
344 ip -n $NS_DST link set dev veth$DST xdp off
345 chk_gro_flag " - after gro on xdp off, gro flag" $DST on
346 chk_gro_flag " - peer gro flag" $SRC off
347 chk_tso_flag " - tso flag" $SRC on
348 chk_tso_flag " - peer tso flag" $DST on
350 if [ $CPUS -gt 1 ]; then
351 ip netns exec $NS_DST ethtool -L veth$DST tx 1
352 chk_channels "decreasing tx channels with device down" $DST 2 1
355 ip -n $NS_DST link set dev veth$DST up
356 ip -n $NS_SRC link set dev veth$SRC up
357 chk_gro " - aggregation" 1
359 if [ $CPUS -gt 1 ]; then
360 [ $STRESS -gt 0 -a $CPUS -gt 2 ] && do_stress
362 ip -n $NS_DST link set dev veth$DST down
363 ip -n $NS_SRC link set dev veth$SRC down
364 ip netns exec $NS_DST ethtool -L veth$DST tx 2
365 chk_channels "increasing tx channels with device down" $DST 2 2
366 ip -n $NS_DST link set dev veth$DST up
367 ip -n $NS_SRC link set dev veth$SRC up
370 ip netns exec $NS_DST ethtool -K veth$DST gro off
371 ip netns exec $NS_SRC ethtool -K veth$SRC tx-udp-segmentation off
372 chk_gro "aggregation again with default and TSO off" 10