2 # SPDX-License-Identifier: GPL-2.0
4 readonly STATS="$(mktemp -p /tmp ns-XXXXXX)"
5 readonly BASE=`basename $STATS`
9 readonly NS_SRC=$BASE$SRC
10 readonly NS_DST=$BASE$DST
12 # "baremetal" network used for raw UDP traffic
13 readonly BM_NET_V4=192.168.1.
14 readonly BM_NET_V6=2001:db8::
16 readonly NPROCS=`nproc`
22 readonly jobs="$(jobs -p)"
23 [ -n "${jobs}" ] && kill -1 ${jobs} 2>/dev/null
26 for ns in $NS_SRC $NS_DST; do
27 ip netns del $ns 2>/dev/null
36 for ns in $NS_SRC $NS_DST; do
38 ip -n $ns link set dev lo up
41 ip link add name veth$SRC type veth peer name veth$DST
43 for ns in $SRC $DST; do
44 ip link set dev veth$ns netns $BASE$ns up
45 ip -n $BASE$ns addr add dev veth$ns $BM_NET_V4$ns/24
46 ip -n $BASE$ns addr add dev veth$ns $BM_NET_V6$ns/64 nodad
48 echo "#kernel" > $BASE
58 local flag=`ip netns exec $BASE$target ethtool -k veth$target |\
59 grep $flagname | awk '{print $2}'`
62 if [ "$flag" = "$expected" ]; then
65 echo " fail - expected $expected found $flag"
71 __chk_flag "$1" $2 $3 generic-receive-offload
75 __chk_flag "$1" $2 $3 tcp-segmentation-offload
82 ip netns exec $BASE$SRC ping -qc 1 $BM_NET_V4$DST >/dev/null
83 NSTAT_HISTORY=$STATS ip netns exec $NS_DST nstat -n
86 ip netns exec $BASE$DST ./udpgso_bench_rx -C 1000 -R 10 &
90 ip netns exec $NS_SRC ./udpgso_bench_tx -4 -s 13000 -S 1300 -M 1 -D $BM_NET_V4$DST
94 if [ ${rets} -ne 0 ] || [ ${retc} -ne 0 ]; then
95 echo " fail client exit code $retc, server $rets"
100 local pkts=`NSTAT_HISTORY=$STATS ip netns exec $NS_DST nstat IpInReceives | \
101 awk '{print $2}' | tail -n 1`
102 if [ "$pkts" = "$expected" ]; then
105 echo " fail - got $pkts packets, expected $expected "
110 if [ ! -f ../bpf/xdp_dummy.o ]; then
111 echo "Missing xdp_dummy helper. Build bpf selftest first"
116 chk_gro_flag "default - gro flag" $SRC off
117 chk_gro_flag " - peer gro flag" $DST off
118 chk_tso_flag " - tso flag" $SRC on
119 chk_tso_flag " - peer tso flag" $DST on
120 chk_gro " - aggregation" 1
121 ip netns exec $NS_SRC ethtool -K veth$SRC tx-udp-segmentation off
122 chk_gro " - aggregation with TSO off" 10
126 ip netns exec $NS_DST ethtool -K veth$DST gro on
127 chk_gro_flag "with gro on - gro flag" $DST on
128 chk_gro_flag " - peer gro flag" $SRC off
129 chk_tso_flag " - tso flag" $SRC on
130 chk_tso_flag " - peer tso flag" $DST on
131 ip netns exec $NS_SRC ethtool -K veth$SRC tx-udp-segmentation off
132 ip netns exec $NS_DST ethtool -K veth$DST rx-udp-gro-forwarding on
133 chk_gro " - aggregation with TSO off" 1
137 ip -n $NS_DST link set dev veth$DST down
138 ip netns exec $NS_DST ethtool -K veth$DST gro on
139 chk_gro_flag "with gro enabled on link down - gro flag" $DST on
140 chk_gro_flag " - peer gro flag" $SRC off
141 chk_tso_flag " - tso flag" $SRC on
142 chk_tso_flag " - peer tso flag" $DST on
143 ip -n $NS_DST link set dev veth$DST up
144 ip netns exec $NS_SRC ethtool -K veth$SRC tx-udp-segmentation off
145 ip netns exec $NS_DST ethtool -K veth$DST rx-udp-gro-forwarding on
146 chk_gro " - aggregation with TSO off" 1
150 ip -n $NS_DST link set dev veth$DST xdp object ../bpf/xdp_dummy.o section xdp_dummy 2>/dev/null
151 chk_gro_flag "with xdp attached - gro flag" $DST on
152 chk_gro_flag " - peer gro flag" $SRC off
153 chk_tso_flag " - tso flag" $SRC off
154 chk_tso_flag " - peer tso flag" $DST on
155 ip netns exec $NS_DST ethtool -K veth$DST rx-udp-gro-forwarding on
156 chk_gro " - aggregation" 1
159 ip -n $NS_DST link set dev veth$DST down
160 ip -n $NS_SRC link set dev veth$SRC down
161 chk_gro_flag " - after dev off, flag" $DST on
162 chk_gro_flag " - peer flag" $SRC off
164 ip netns exec $NS_DST ethtool -K veth$DST gro on
165 ip -n $NS_DST link set dev veth$DST xdp off
166 chk_gro_flag " - after gro on xdp off, gro flag" $DST on
167 chk_gro_flag " - peer gro flag" $SRC off
168 chk_tso_flag " - tso flag" $SRC on
169 chk_tso_flag " - peer tso flag" $DST on
170 ip -n $NS_DST link set dev veth$DST up
171 ip -n $NS_SRC link set dev veth$SRC up
172 chk_gro " - aggregation" 1
174 ip netns exec $NS_DST ethtool -K veth$DST gro off
175 ip netns exec $NS_SRC ethtool -K veth$SRC tx-udp-segmentation off
176 chk_gro "aggregation again with default and TSO off" 10