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$DST
12 # "baremetal" network used for raw UDP traffic
13 readonly BM_NET_V4=192.168.1.
14 readonly BM_NET_V6=2001:db8::
16 readonly NPROCS=`nproc`
21 local -r jobs="$(jobs -p)"
22 [ -n "${jobs}" ] && kill -1 ${jobs} 2>/dev/null
25 for ns in $NS_SRC $NS_DST; do
26 ip netns del $ns 2>/dev/null
35 for ns in $NS_SRC $NS_DST; do
37 ip -n $ns link set dev lo up
40 ip link add name veth$SRC type veth peer name veth$DST
42 for ns in $SRC $DST; do
43 ip link set dev veth$ns netns $BASE$ns up
44 ip -n $BASE$ns addr add dev veth$ns $BM_NET_V4$ns/24
45 ip -n $BASE$ns addr add dev veth$ns $BM_NET_V6$ns/64 nodad
47 echo "#kernel" > $BASE
57 local flag=`ip netns exec $BASE$target ethtool -k veth$target |\
58 grep $flagname | awk '{print $2}'`
61 if [ "$flag" = "$expected" ]; then
64 echo " fail - expected $expected found $flag"
70 __chk_flag "$1" $2 $3 generic-receive-offload
74 __chk_flag "$1" $2 $3 tcp-segmentation-offload
81 ip netns exec $BASE$SRC ping -qc 1 $BM_NET_V4$DST >/dev/null
82 NSTAT_HISTORY=$STATS ip netns exec $NS_DST nstat -n
85 ip netns exec $BASE$DST ./udpgso_bench_rx -C 1000 -R 10 &
89 ip netns exec $NS_SRC ./udpgso_bench_tx -4 -s 13000 -S 1300 -M 1 -D $BM_NET_V4$DST
93 if [ ${rets} -ne 0 ] || [ ${retc} -ne 0 ]; then
94 echo " fail client exit code $retc, server $rets"
99 local pkts=`NSTAT_HISTORY=$STATS ip netns exec $NS_DST nstat IpInReceives | \
100 awk '{print $2}' | tail -n 1`
101 if [ "$pkts" = "$expected" ]; then
104 echo " fail - got $pkts packets, expected $expected "
109 if [ ! -f ../bpf/xdp_dummy.o ]; then
110 echo "Missing xdp_dummy helper. Build bpf selftest first"
115 chk_gro_flag "default - gro flag" $SRC off
116 chk_gro_flag " - peer gro flag" $DST off
117 chk_tso_flag " - tso flag" $SRC on
118 chk_tso_flag " - peer tso flag" $DST on
119 chk_gro " - aggregation" 1
120 ip netns exec $NS_SRC ethtool -K veth$SRC tx-udp-segmentation off
121 chk_gro " - aggregation with TSO off" 10
125 ip netns exec $NS_DST ethtool -K veth$DST gro on
126 chk_gro_flag "with gro on - gro flag" $DST on
127 chk_gro_flag " - peer gro flag" $SRC off
128 chk_tso_flag " - tso flag" $SRC on
129 chk_tso_flag " - peer tso flag" $DST on
130 ip netns exec $NS_SRC ethtool -K veth$SRC tx-udp-segmentation off
131 ip netns exec $NS_DST ethtool -K veth$DST rx-udp-gro-forwarding on
132 chk_gro " - aggregation with TSO off" 1
136 ip -n $NS_DST link set dev veth$DST down
137 ip netns exec $NS_DST ethtool -K veth$DST gro on
138 chk_gro_flag "with gro enabled on link down - gro flag" $DST on
139 chk_gro_flag " - peer gro flag" $SRC off
140 chk_tso_flag " - tso flag" $SRC on
141 chk_tso_flag " - peer tso flag" $DST on
142 ip -n $NS_DST link set dev veth$DST up
143 ip netns exec $NS_SRC ethtool -K veth$SRC tx-udp-segmentation off
144 ip netns exec $NS_DST ethtool -K veth$DST rx-udp-gro-forwarding on
145 chk_gro " - aggregation with TSO off" 1
149 ip -n $NS_DST link set dev veth$DST xdp object ../bpf/xdp_dummy.o section xdp_dummy 2>/dev/null
150 chk_gro_flag "with xdp attached - gro flag" $DST on
151 chk_gro_flag " - peer gro flag" $SRC off
152 chk_tso_flag " - tso flag" $SRC off
153 chk_tso_flag " - peer tso flag" $DST on
154 ip netns exec $NS_DST ethtool -K veth$DST rx-udp-gro-forwarding on
155 chk_gro " - aggregation" 1
158 ip -n $NS_DST link set dev veth$DST down
159 ip -n $NS_SRC link set dev veth$SRC down
160 chk_gro_flag " - after dev off, flag" $DST on
161 chk_gro_flag " - peer flag" $SRC off
163 ip netns exec $NS_DST ethtool -K veth$DST gro on
164 ip -n $NS_DST link set dev veth$DST xdp off
165 chk_gro_flag " - after gro on xdp off, gro flag" $DST on
166 chk_gro_flag " - peer gro flag" $SRC off
167 chk_tso_flag " - tso flag" $SRC on
168 chk_tso_flag " - peer tso flag" $DST on
169 ip -n $NS_DST link set dev veth$DST up
170 ip -n $NS_SRC link set dev veth$SRC up
171 chk_gro " - aggregation" 1
173 ip netns exec $NS_DST ethtool -K veth$DST gro off
174 ip netns exec $NS_SRC ethtool -K veth$SRC tx-udp-segmentation off
175 chk_gro "aggregation again with default and TSO off" 10