tools/testing/selftests/drivers/net/mlxsw/tc_police_occ.sh

   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