1 #!/bin/bash
2 # SPDX-License-Identifier: GPL-2.0
3 #
4 # Test qdisc offload indication
5
6
7 ALL_TESTS="
8 test_root
9 test_port_tbf
10 test_etsprio
11 test_etsprio_port_tbf
12 "
13 NUM_NETIFS=1
14 lib_dir=$(dirname $0)/../../../net/forwarding
15 source $lib_dir/lib.sh
16
17 check_not_offloaded()
18 {
19 local handle=$1; shift
20 local h
21 local offloaded
22
23 h=$(qdisc_stats_get $h1 "$handle" .handle)
24 [[ $h == '"'$handle'"' ]]
25 check_err $? "Qdisc with handle $handle does not exist"
26
27 offloaded=$(qdisc_stats_get $h1 "$handle" .offloaded)
28 [[ $offloaded == true ]]
29 check_fail $? "Qdisc with handle $handle offloaded, but should not be"
30 }
31
32 check_all_offloaded()
33 {
34 local handle=$1; shift
35
36 if [[ ! -z $handle ]]; then
37 local offloaded=$(qdisc_stats_get $h1 "$handle" .offloaded)
38 [[ $offloaded == true ]]
39 check_err $? "Qdisc with handle $handle not offloaded"
40 fi
41
42 local unoffloaded=$(tc q sh dev $h1 invisible |
43 grep -v offloaded |
44 sed s/root/parent\ root/ |
45 cut -d' ' -f 5)
46 [[ -z $unoffloaded ]]
47 check_err $? "Qdiscs with following parents not offloaded: $unoffloaded"
48
49 pre_cleanup
50 }
51
52 with_ets()
53 {
54 local handle=$1; shift
55 local locus=$1; shift
56
57 tc qdisc add dev $h1 $locus handle $handle \
58 ets bands 8 priomap 7 6 5 4 3 2 1 0
59 "$@"
60 tc qdisc del dev $h1 $locus
61 }
62
63 with_prio()
64 {
65 local handle=$1; shift
66 local locus=$1; shift
67
68 tc qdisc add dev $h1 $locus handle $handle \
69 prio bands 8 priomap 7 6 5 4 3 2 1 0
70 "$@"
71 tc qdisc del dev $h1 $locus
72 }
73
74 with_red()
75 {
76 local handle=$1; shift
77 local locus=$1; shift
78
79 tc qdisc add dev $h1 $locus handle $handle \
80 red limit 1000000 min 200000 max 300000 probability 0.5 avpkt 1500
81 "$@"
82 tc qdisc del dev $h1 $locus
83 }
84
85 with_tbf()
86 {
87 local handle=$1; shift
88 local locus=$1; shift
89
90 tc qdisc add dev $h1 $locus handle $handle \
91 tbf rate 400Mbit burst 128K limit 1M
92 "$@"
93 tc qdisc del dev $h1 $locus
94 }
95
96 with_pfifo()
97 {
98 local handle=$1; shift
99 local locus=$1; shift
100
101 tc qdisc add dev $h1 $locus handle $handle pfifo limit 100K
102 "$@"
103 tc qdisc del dev $h1 $locus
104 }
105
106 with_bfifo()
107 {
108 local handle=$1; shift
109 local locus=$1; shift
110
111 tc qdisc add dev $h1 $locus handle $handle bfifo limit 100K
112 "$@"
113 tc qdisc del dev $h1 $locus
114 }
115
116 with_drr()
117 {
118 local handle=$1; shift
119 local locus=$1; shift
120
121 tc qdisc add dev $h1 $locus handle $handle drr
122 "$@"
123 tc qdisc del dev $h1 $locus
124 }
125
126 with_qdiscs()
127 {
128 local handle=$1; shift
129 local parent=$1; shift
130 local kind=$1; shift
131 local next_handle=$((handle * 2))
132 local locus;
133
134 if [[ $kind == "--" ]]; then
135 local cmd=$1; shift
136 $cmd $(printf %x: $parent) "$@"
137 else
138 if ((parent == 0)); then
139 locus=root
140 else
141 locus=$(printf "parent %x:1" $parent)
142 fi
143
144 with_$kind $(printf %x: $handle) "$locus" \
145 with_qdiscs $next_handle $handle "$@"
146 fi
147 }
148
149 get_name()
150 {
151 local parent=$1; shift
152 local name=$(echo "" "${@^^}" | tr ' ' -)
153
154 if ((parent != 0)); then
155 kind=$(qdisc_stats_get $h1 $parent: .kind)
156 kind=${kind%\"}
157 kind=${kind#\"}
158 name="-${kind^^}$name"
159 fi
160
161 echo root$name
162 }
163
164 do_test_offloaded()
165 {
166 local handle=$1; shift
167 local parent=$1; shift
168
169 RET=0
170 with_qdiscs $handle $parent "$@" -- check_all_offloaded
171 log_test $(get_name $parent "$@")" offloaded"
172 }
173
174 do_test_nooffload()
175 {
176 local handle=$1; shift
177 local parent=$1; shift
178
179 local name=$(echo "${@^^}" | tr ' ' -)
180 local kind
181
182 RET=0
183 with_qdiscs $handle $parent "$@" -- check_not_offloaded
184 log_test $(get_name $parent "$@")" not offloaded"
185 }
186
187 do_test_combinations()
188 {
189 local handle=$1; shift
190 local parent=$1; shift
191
192 local cont
193 local leaf
194 local fifo
195
196 for cont in "" ets prio; do
197 for leaf in "" red tbf "red tbf" "tbf red"; do
198 for fifo in "" pfifo bfifo; do
199 if [[ -z "$cont$leaf$fifo" ]]; then
200 continue
201 fi
202 do_test_offloaded $handle $parent \
203 $cont $leaf $fifo
204 done
205 done
206 done
207
208 for cont in ets prio; do
209 for leaf in red tbf; do
210 do_test_nooffload $handle $parent $cont red tbf $leaf
211 do_test_nooffload $handle $parent $cont tbf red $leaf
212 done
213 for leaf in "red red" "tbf tbf"; do
214 do_test_nooffload $handle $parent $cont $leaf
215 done
216 done
217
218 do_test_nooffload $handle $parent drr
219 }
220
221 test_root()
222 {
223 do_test_combinations 1 0
224 }
225
226 test_port_tbf()
227 {
228 with_tbf 1: root \
229 do_test_combinations 8 1
230 }
231
232 do_test_etsprio()
233 {
234 local parent=$1; shift
235 local tbfpfx=$1; shift
236 local cont
237
238 for cont in ets prio; do
239 RET=0
240 with_$cont 8: "$parent" \
241 with_red 11: "parent 8:1" \
242 with_red 12: "parent 8:2" \
243 with_tbf 13: "parent 8:3" \
244 with_tbf 14: "parent 8:4" \
245 check_all_offloaded
246 log_test "root$tbfpfx-ETS-{RED,TBF} offloaded"
247
248 RET=0
249 with_$cont 8: "$parent" \
250 with_red 81: "parent 8:1" \
251 with_tbf 811: "parent 81:1" \
252 with_tbf 84: "parent 8:4" \
253 with_red 841: "parent 84:1" \
254 check_all_offloaded
255 log_test "root$tbfpfx-ETS-{RED-TBF,TBF-RED} offloaded"
256
257 RET=0
258 with_$cont 8: "$parent" \
259 with_red 81: "parent 8:1" \
260 with_tbf 811: "parent 81:1" \
261 with_bfifo 8111: "parent 811:1" \
262 with_tbf 82: "parent 8:2" \
263 with_red 821: "parent 82:1" \
264 with_bfifo 8211: "parent 821:1" \
265 check_all_offloaded
266 log_test "root$tbfpfx-ETS-{RED-TBF-bFIFO,TBF-RED-bFIFO} offloaded"
267 done
268 }
269
270 test_etsprio()
271 {
272 do_test_etsprio root ""
273 }
274
275 test_etsprio_port_tbf()
276 {
277 with_tbf 1: root \
278 do_test_etsprio "parent 1:1" "-TBF"
279 }
280
281 cleanup()
282 {
283 tc qdisc del dev $h1 root &>/dev/null
284 }
285
286 trap cleanup EXIT
287 h1=${NETIFS[p1]}
288 tests_run
289
290 exit $EXIT_STATUS
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