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
4ALL_TESTS="
5 ping_ipv4
6 ecn_test
7 ecn_nodrop_test
8 red_test
9 mc_backlog_test
10"
11: ${QDISC:=ets}
12source sch_red_core.sh
13
14# do_ecn_test first build 2/3 of the requested backlog and expects no marking,
15# and then builds 3/2 of it and does expect marking. The values of $BACKLOG1 and
16# $BACKLOG2 are far enough not to overlap, so that we can assume that if we do
17# see (do not see) marking, it is actually due to the configuration of that one
18# TC, and not due to configuration of the other TC leaking over.
19BACKLOG1=200000
20BACKLOG2=500000
21
22install_qdisc()
23{
24 local -a args=("$@")
25
26 tc qdisc add dev $swp3 root handle 10: $QDISC \
27 bands 8 priomap 7 6 5 4 3 2 1 0
28 tc qdisc add dev $swp3 parent 10:8 handle 108: red \
29 limit 1000000 min $BACKLOG1 max $((BACKLOG1 + 1)) \
30 probability 1.0 avpkt 8000 burst 38 "${args[@]}"
31 tc qdisc add dev $swp3 parent 10:7 handle 107: red \
32 limit 1000000 min $BACKLOG2 max $((BACKLOG2 + 1)) \
33 probability 1.0 avpkt 8000 burst 63 "${args[@]}"
34 sleep 1
35}
36
37uninstall_qdisc()
38{
39 tc qdisc del dev $swp3 parent 10:7
40 tc qdisc del dev $swp3 parent 10:8
41 tc qdisc del dev $swp3 root
42}
43
44ecn_test()
45{
46 install_qdisc ecn
47
48 do_ecn_test 10 $BACKLOG1
49 do_ecn_test 11 $BACKLOG2
50
51 uninstall_qdisc
52}
53
54ecn_nodrop_test()
55{
56 install_qdisc ecn nodrop
57
58 do_ecn_nodrop_test 10 $BACKLOG1
59 do_ecn_nodrop_test 11 $BACKLOG2
60
61 uninstall_qdisc
62}
63
64red_test()
65{
66 install_qdisc
67
68 do_red_test 10 $BACKLOG1
69 do_red_test 11 $BACKLOG2
70
71 uninstall_qdisc
72}
73
74mc_backlog_test()
75{
76 install_qdisc
77
78 # Note that the backlog numbers here do not correspond to RED
79 # configuration, but are arbitrary.
80 do_mc_backlog_test 10 $BACKLOG1
81 do_mc_backlog_test 11 $BACKLOG2
82
83 uninstall_qdisc
84}
85
86trap cleanup EXIT
87
88setup_prepare
89setup_wait
90
91bail_on_lldpad
92tests_run
93
94exit $EXIT_STATUS