tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#!/bin/bash
2# SPDX-License-Identifier: GPL-2.0
3
4# +--------------------+ +----------------------+
5# | H1 | | H2 |
6# | | | |
7# | $h1.200 + | | + $h2.200 |
8# | 192.0.2.1/28 | | | | 192.0.2.18/28 |
9# | 2001:db8:1::1/64 | | | | 2001:db8:2::1/64 |
10# | | | | | |
11# | $h1 + | | + $h2 |
12# | | | | | |
13# +------------------|-+ +-|--------------------+
14# | |
15# +------------------|-------------------------|--------------------+
16# | SW | | |
17# | | | |
18# | $rp1 + + $rp2 |
19# | | | |
20# | $rp1.200 + + $rp2.200 |
21# | 192.0.2.2/28 192.0.2.17/28 |
22# | 2001:db8:1::2/64 2001:db8:2::2/64 |
23# | |
24# +-----------------------------------------------------------------+
25
26ALL_TESTS="
27 ping_ipv4
28 ping_ipv6
29 test_stats_rx_ipv4
30 test_stats_tx_ipv4
31 test_stats_rx_ipv6
32 test_stats_tx_ipv6
33 respin_enablement
34 test_stats_rx_ipv4
35 test_stats_tx_ipv4
36 test_stats_rx_ipv6
37 test_stats_tx_ipv6
38 reapply_config
39 ping_ipv4
40 ping_ipv6
41 test_stats_rx_ipv4
42 test_stats_tx_ipv4
43 test_stats_rx_ipv6
44 test_stats_tx_ipv6
45 test_stats_report_rx
46 test_stats_report_tx
47 test_destroy_enabled
48 test_double_enable
49"
50NUM_NETIFS=4
51source lib.sh
52
53h1_create()
54{
55 simple_if_init $h1
56 vlan_create $h1 200 v$h1 192.0.2.1/28 2001:db8:1::1/64
57 ip route add 192.0.2.16/28 vrf v$h1 nexthop via 192.0.2.2
58 ip -6 route add 2001:db8:2::/64 vrf v$h1 nexthop via 2001:db8:1::2
59}
60
61h1_destroy()
62{
63 ip -6 route del 2001:db8:2::/64 vrf v$h1 nexthop via 2001:db8:1::2
64 ip route del 192.0.2.16/28 vrf v$h1 nexthop via 192.0.2.2
65 vlan_destroy $h1 200
66 simple_if_fini $h1
67}
68
69h2_create()
70{
71 simple_if_init $h2
72 vlan_create $h2 200 v$h2 192.0.2.18/28 2001:db8:2::1/64
73 ip route add 192.0.2.0/28 vrf v$h2 nexthop via 192.0.2.17
74 ip -6 route add 2001:db8:1::/64 vrf v$h2 nexthop via 2001:db8:2::2
75}
76
77h2_destroy()
78{
79 ip -6 route del 2001:db8:1::/64 vrf v$h2 nexthop via 2001:db8:2::2
80 ip route del 192.0.2.0/28 vrf v$h2 nexthop via 192.0.2.17
81 vlan_destroy $h2 200
82 simple_if_fini $h2
83}
84
85router_rp1_200_create()
86{
87 ip link add name $rp1.200 link $rp1 type vlan id 200
88 ip link set dev $rp1.200 addrgenmode eui64
89 ip link set dev $rp1.200 up
90 ip address add dev $rp1.200 192.0.2.2/28
91 ip address add dev $rp1.200 2001:db8:1::2/64
92 ip stats set dev $rp1.200 l3_stats on
93}
94
95router_rp1_200_destroy()
96{
97 ip stats set dev $rp1.200 l3_stats off
98 ip address del dev $rp1.200 2001:db8:1::2/64
99 ip address del dev $rp1.200 192.0.2.2/28
100 ip link del dev $rp1.200
101}
102
103router_create()
104{
105 ip link set dev $rp1 up
106 router_rp1_200_create
107
108 ip link set dev $rp2 up
109 vlan_create $rp2 200 "" 192.0.2.17/28 2001:db8:2::2/64
110}
111
112router_destroy()
113{
114 vlan_destroy $rp2 200
115 ip link set dev $rp2 down
116
117 router_rp1_200_destroy
118 ip link set dev $rp1 down
119}
120
121setup_prepare()
122{
123 h1=${NETIFS[p1]}
124 rp1=${NETIFS[p2]}
125
126 rp2=${NETIFS[p3]}
127 h2=${NETIFS[p4]}
128
129 rp1mac=$(mac_get $rp1)
130 rp2mac=$(mac_get $rp2)
131
132 vrf_prepare
133
134 h1_create
135 h2_create
136
137 router_create
138
139 forwarding_enable
140}
141
142cleanup()
143{
144 pre_cleanup
145
146 forwarding_restore
147
148 router_destroy
149
150 h2_destroy
151 h1_destroy
152
153 vrf_cleanup
154}
155
156ping_ipv4()
157{
158 ping_test $h1.200 192.0.2.18 " IPv4"
159}
160
161ping_ipv6()
162{
163 ping_test $h1.200 2001:db8:2::1 " IPv6"
164}
165
166send_packets_rx_ipv4()
167{
168 # Send 21 packets instead of 20, because the first one might trap and go
169 # through the SW datapath, which might not bump the HW counter.
170 $MZ $h1.200 -c 21 -d 20msec -p 100 \
171 -a own -b $rp1mac -A 192.0.2.1 -B 192.0.2.18 \
172 -q -t udp sp=54321,dp=12345
173}
174
175send_packets_rx_ipv6()
176{
177 $MZ $h1.200 -6 -c 21 -d 20msec -p 100 \
178 -a own -b $rp1mac -A 2001:db8:1::1 -B 2001:db8:2::1 \
179 -q -t udp sp=54321,dp=12345
180}
181
182send_packets_tx_ipv4()
183{
184 $MZ $h2.200 -c 21 -d 20msec -p 100 \
185 -a own -b $rp2mac -A 192.0.2.18 -B 192.0.2.1 \
186 -q -t udp sp=54321,dp=12345
187}
188
189send_packets_tx_ipv6()
190{
191 $MZ $h2.200 -6 -c 21 -d 20msec -p 100 \
192 -a own -b $rp2mac -A 2001:db8:2::1 -B 2001:db8:1::1 \
193 -q -t udp sp=54321,dp=12345
194}
195
196___test_stats()
197{
198 local dir=$1; shift
199 local prot=$1; shift
200
201 local a
202 local b
203
204 a=$(hw_stats_get l3_stats $rp1.200 ${dir} packets)
205 send_packets_${dir}_${prot}
206 "$@"
207 b=$(busywait "$TC_HIT_TIMEOUT" until_counter_is ">= $a + 20" \
208 hw_stats_get l3_stats $rp1.200 ${dir} packets)
209 check_err $? "Traffic not reflected in the counter: $a -> $b"
210}
211
212__test_stats()
213{
214 local dir=$1; shift
215 local prot=$1; shift
216
217 RET=0
218 ___test_stats "$dir" "$prot"
219 log_test "Test $dir packets: $prot"
220}
221
222test_stats_rx_ipv4()
223{
224 __test_stats rx ipv4
225}
226
227test_stats_tx_ipv4()
228{
229 __test_stats tx ipv4
230}
231
232test_stats_rx_ipv6()
233{
234 __test_stats rx ipv6
235}
236
237test_stats_tx_ipv6()
238{
239 __test_stats tx ipv6
240}
241
242# Make sure everything works well even after stats have been disabled and
243# reenabled on the same device without touching the L3 configuration.
244respin_enablement()
245{
246 log_info "Turning stats off and on again"
247 ip stats set dev $rp1.200 l3_stats off
248 ip stats set dev $rp1.200 l3_stats on
249}
250
251# For the initial run, l3_stats is enabled on a completely set up netdevice. Now
252# do it the other way around: enabling the L3 stats on an L2 netdevice, and only
253# then apply the L3 configuration.
254reapply_config()
255{
256 log_info "Reapplying configuration"
257
258 router_rp1_200_destroy
259
260 ip link add name $rp1.200 link $rp1 type vlan id 200
261 ip link set dev $rp1.200 addrgenmode none
262 ip stats set dev $rp1.200 l3_stats on
263 ip link set dev $rp1.200 addrgenmode eui64
264 ip link set dev $rp1.200 up
265 ip address add dev $rp1.200 192.0.2.2/28
266 ip address add dev $rp1.200 2001:db8:1::2/64
267}
268
269__test_stats_report()
270{
271 local dir=$1; shift
272 local prot=$1; shift
273
274 local a
275 local b
276
277 RET=0
278
279 a=$(hw_stats_get l3_stats $rp1.200 ${dir} packets)
280 send_packets_${dir}_${prot}
281 ip address flush dev $rp1.200
282 b=$(busywait "$TC_HIT_TIMEOUT" until_counter_is ">= $a + 20" \
283 hw_stats_get l3_stats $rp1.200 ${dir} packets)
284 check_err $? "Traffic not reflected in the counter: $a -> $b"
285 log_test "Test ${dir} packets: stats pushed on loss of L3"
286
287 ip stats set dev $rp1.200 l3_stats off
288 ip link del dev $rp1.200
289 router_rp1_200_create
290}
291
292test_stats_report_rx()
293{
294 __test_stats_report rx ipv4
295}
296
297test_stats_report_tx()
298{
299 __test_stats_report tx ipv4
300}
301
302test_destroy_enabled()
303{
304 RET=0
305
306 ip link del dev $rp1.200
307 router_rp1_200_create
308
309 log_test "Destroy l3_stats-enabled netdev"
310}
311
312test_double_enable()
313{
314 RET=0
315 ___test_stats rx ipv4 \
316 ip stats set dev $rp1.200 l3_stats on
317 log_test "Test stat retention across a spurious enablement"
318}
319
320trap cleanup EXIT
321
322setup_prepare
323setup_wait
324
325used=$(ip -j stats show dev $rp1.200 group offload subgroup hw_stats_info |
326 jq '.[].info.l3_stats.used')
327kind=$(ip -j -d link show dev $rp1 |
328 jq -r '.[].linkinfo.info_kind')
329if [[ $used != true ]]; then
330 if [[ $kind == veth ]]; then
331 log_test_skip "l3_stats not offloaded on veth interface"
332 EXIT_STATUS=$ksft_skip
333 else
334 RET=1 log_test "l3_stats not offloaded"
335 fi
336else
337 tests_run
338fi
339
340exit $EXIT_STATUS