1 #!/bin/bash
2 # SPDX-License-Identifier: GPL-2.0
3 #
4 # Test that policers shared by different tc filters are correctly reference
5 # counted by observing policers' occupancy via devlink-resource.
6
7 lib_dir=$(dirname $0)/../../../net/forwarding
8
9 ALL_TESTS="
10 tc_police_occ_test
11 "
12 NUM_NETIFS=2
13 source $lib_dir/lib.sh
14 source $lib_dir/devlink_lib.sh
15
16 h1_create()
17 {
18 simple_if_init $h1
19 }
20
21 h1_destroy()
22 {
23 simple_if_fini $h1
24 }
25
26 switch_create()
27 {
28 simple_if_init $swp1
29 tc qdisc add dev $swp1 clsact
30 }
31
32 switch_destroy()
33 {
34 tc qdisc del dev $swp1 clsact
35 simple_if_fini $swp1
36 }
37
38 setup_prepare()
39 {
40 h1=${NETIFS[p1]}
41 swp1=${NETIFS[p2]}
42
43 vrf_prepare
44
45 h1_create
46 switch_create
47 }
48
49 cleanup()
50 {
51 pre_cleanup
52
53 switch_destroy
54 h1_destroy
55
56 vrf_cleanup
57 }
58
59 tc_police_occ_get()
60 {
61 devlink_resource_occ_get global_policers single_rate_policers
62 }
63
64 tc_police_occ_test()
65 {
66 RET=0
67
68 local occ=$(tc_police_occ_get)
69
70 tc filter add dev $swp1 ingress pref 1 handle 101 proto ip \
71 flower skip_sw \
72 action police rate 100mbit burst 100k conform-exceed drop/ok
73 (( occ + 1 == $(tc_police_occ_get) ))
74 check_err $? "Got occupancy $(tc_police_occ_get), expected $((occ + 1))"
75
76 tc filter del dev $swp1 ingress pref 1 handle 101 flower
77 (( occ == $(tc_police_occ_get) ))
78 check_err $? "Got occupancy $(tc_police_occ_get), expected $occ"
79
80 tc filter add dev $swp1 ingress pref 1 handle 101 proto ip \
81 flower skip_sw \
82 action police rate 100mbit burst 100k conform-exceed drop/ok \
83 index 10
84 tc filter add dev $swp1 ingress pref 2 handle 102 proto ip \
85 flower skip_sw action police index 10
86
87 (( occ + 1 == $(tc_police_occ_get) ))
88 check_err $? "Got occupancy $(tc_police_occ_get), expected $((occ + 1))"
89
90 tc filter del dev $swp1 ingress pref 2 handle 102 flower
91 (( occ + 1 == $(tc_police_occ_get) ))
92 check_err $? "Got occupancy $(tc_police_occ_get), expected $((occ + 1))"
93
94 tc filter del dev $swp1 ingress pref 1 handle 101 flower
95 (( occ == $(tc_police_occ_get) ))
96 check_err $? "Got occupancy $(tc_police_occ_get), expected $occ"
97
98 log_test "tc police occupancy"
99 }
100
101 trap cleanup EXIT
102
103 setup_prepare
104 setup_wait
105
106 tests_run
107
108 exit $EXIT_STATUS
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