xref: /linux/tools/testing/selftests/drivers/net/netdevsim/devlink.sh (revision 8be4d31cb8aaeea27bde4b7ddb26e28a89062ebf)
1#!/bin/bash
2# SPDX-License-Identifier: GPL-2.0
3
4lib_dir=$(dirname $0)/../../../net/forwarding
5
6ALL_TESTS="fw_flash_test params_test regions_test reload_test \
7	   netns_reload_test resource_test dev_info_test \
8	   empty_reporter_test dummy_reporter_test rate_test"
9NUM_NETIFS=0
10source $lib_dir/lib.sh
11
12BUS_ADDR=10
13PORT_COUNT=4
14VF_COUNT=4
15DEV_NAME=netdevsim$BUS_ADDR
16SYSFS_NET_DIR=/sys/bus/netdevsim/devices/$DEV_NAME/net/
17DEBUGFS_DIR=/sys/kernel/debug/netdevsim/$DEV_NAME/
18DL_HANDLE=netdevsim/$DEV_NAME
19
20wait_for_devlink()
21{
22	"$@" | grep -q $DL_HANDLE
23}
24
25devlink_wait()
26{
27	local timeout=$1
28
29	busywait "$timeout" wait_for_devlink devlink dev
30}
31
32fw_flash_test()
33{
34	DUMMYFILE=$(find /lib/firmware -type f -printf '%P\n' | head -1)
35	RET=0
36
37	if [ -z "$DUMMYFILE" ]
38	then
39		echo "SKIP: unable to find suitable dummy firmware file"
40		return
41	fi
42
43	echo "10"> $DEBUGFS_DIR/fw_update_flash_chunk_time_ms
44
45	devlink dev flash $DL_HANDLE file $DUMMYFILE
46	check_err $? "Failed to flash with status updates on"
47
48	devlink dev flash $DL_HANDLE file $DUMMYFILE component fw.mgmt
49	check_err $? "Failed to flash with component attribute"
50
51	devlink dev flash $DL_HANDLE file $DUMMYFILE overwrite settings
52	check_fail $? "Flash with overwrite settings should be rejected"
53
54	echo "1"> $DEBUGFS_DIR/fw_update_overwrite_mask
55	check_err $? "Failed to change allowed overwrite mask"
56
57	devlink dev flash $DL_HANDLE file $DUMMYFILE overwrite settings
58	check_err $? "Failed to flash with settings overwrite enabled"
59
60	devlink dev flash $DL_HANDLE file $DUMMYFILE overwrite identifiers
61	check_fail $? "Flash with overwrite settings should be identifiers"
62
63	echo "3"> $DEBUGFS_DIR/fw_update_overwrite_mask
64	check_err $? "Failed to change allowed overwrite mask"
65
66	devlink dev flash $DL_HANDLE file $DUMMYFILE overwrite identifiers overwrite settings
67	check_err $? "Failed to flash with settings and identifiers overwrite enabled"
68
69	echo "n"> $DEBUGFS_DIR/fw_update_status
70	check_err $? "Failed to disable status updates"
71
72	devlink dev flash $DL_HANDLE file $DUMMYFILE
73	check_err $? "Failed to flash with status updates off"
74
75	log_test "fw flash test"
76}
77
78param_get()
79{
80	local name=$1
81
82	cmd_jq "devlink dev param show $DL_HANDLE name $name -j" \
83	       '.[][][].values[] | select(.cmode == "driverinit").value'
84}
85
86param_set()
87{
88	local name=$1
89	local value=$2
90
91	devlink dev param set $DL_HANDLE name $name cmode driverinit value $value
92}
93
94check_value()
95{
96	local name=$1
97	local phase_name=$2
98	local expected_param_value=$3
99	local expected_debugfs_value=$4
100	local value
101
102	value=$(param_get $name)
103	check_err $? "Failed to get $name param value"
104	[ "$value" == "$expected_param_value" ]
105	check_err $? "Unexpected $phase_name $name param value"
106	value=$(<$DEBUGFS_DIR/$name)
107	check_err $? "Failed to get $name debugfs value"
108	[ "$value" == "$expected_debugfs_value" ]
109	check_err $? "Unexpected $phase_name $name debugfs value"
110}
111
112params_test()
113{
114	RET=0
115
116	local max_macs
117	local test1
118
119	check_value max_macs initial 32 32
120	check_value test1 initial true Y
121
122	param_set max_macs 16
123	check_err $? "Failed to set max_macs param value"
124	param_set test1 false
125	check_err $? "Failed to set test1 param value"
126
127	check_value max_macs post-set 16 32
128	check_value test1 post-set false Y
129
130	devlink dev reload $DL_HANDLE
131
132	check_value max_macs post-reload 16 16
133	check_value test1 post-reload false N
134
135	log_test "params test"
136}
137
138check_region_size()
139{
140	local name=$1
141	local size
142
143	size=$(devlink region show $DL_HANDLE/$name -j | jq -e -r '.[][].size')
144	check_err $? "Failed to get $name region size"
145	[ $size -eq 32768 ]
146	check_err $? "Invalid $name region size"
147}
148
149check_region_snapshot_count()
150{
151	local name=$1
152	local phase_name=$2
153	local expected_count=$3
154	local count
155
156	count=$(devlink region show $DL_HANDLE/$name -j | jq -e -r '.[][].snapshot | length')
157	[ $count -eq $expected_count ]
158	check_err $? "Unexpected $phase_name snapshot count"
159}
160
161regions_test()
162{
163	RET=0
164
165	local count
166
167	check_region_size dummy
168	check_region_snapshot_count dummy initial 0
169
170	echo ""> $DEBUGFS_DIR/take_snapshot
171	check_err $? "Failed to take first dummy region snapshot"
172	check_region_snapshot_count dummy post-first-snapshot 1
173
174	echo ""> $DEBUGFS_DIR/take_snapshot
175	check_err $? "Failed to take second dummy region snapshot"
176	check_region_snapshot_count dummy post-second-snapshot 2
177
178	echo ""> $DEBUGFS_DIR/take_snapshot
179	check_err $? "Failed to take third dummy region snapshot"
180	check_region_snapshot_count dummy post-third-snapshot 3
181
182	devlink region del $DL_HANDLE/dummy snapshot 1
183	check_err $? "Failed to delete first dummy region snapshot"
184
185	check_region_snapshot_count dummy post-first-delete 2
186
187	devlink region new $DL_HANDLE/dummy snapshot 25
188	check_err $? "Failed to create a new snapshot with id 25"
189
190	check_region_snapshot_count dummy post-first-request 3
191
192	devlink region dump $DL_HANDLE/dummy snapshot 25 >> /dev/null
193	check_err $? "Failed to dump snapshot with id 25"
194
195	devlink region read $DL_HANDLE/dummy snapshot 25 addr 0 len 1 >> /dev/null
196	check_err $? "Failed to read snapshot with id 25 (1 byte)"
197
198	devlink region read $DL_HANDLE/dummy snapshot 25 addr 128 len 128 >> /dev/null
199	check_err $? "Failed to read snapshot with id 25 (128 bytes)"
200
201	devlink region read $DL_HANDLE/dummy snapshot 25 addr 128 len $((1<<32)) >> /dev/null
202	check_err $? "Failed to read snapshot with id 25 (oversized)"
203
204	devlink region read $DL_HANDLE/dummy snapshot 25 addr $((1<<32)) len 128 >> /dev/null 2>&1
205	check_fail $? "Bad read of snapshot with id 25 did not fail"
206
207	devlink region del $DL_HANDLE/dummy snapshot 25
208	check_err $? "Failed to delete snapshot with id 25"
209
210	check_region_snapshot_count dummy post-second-delete 2
211
212	sid=$(devlink -j region new $DL_HANDLE/dummy | jq '.[][][][]')
213	check_err $? "Failed to create a new snapshot with id allocated by the kernel"
214
215	check_region_snapshot_count dummy post-first-request 3
216
217	devlink region dump $DL_HANDLE/dummy snapshot $sid >> /dev/null
218	check_err $? "Failed to dump a snapshot with id allocated by the kernel"
219
220	devlink region del $DL_HANDLE/dummy snapshot $sid
221	check_err $? "Failed to delete snapshot with id allocated by the kernel"
222
223	check_region_snapshot_count dummy post-first-request 2
224
225	log_test "regions test"
226}
227
228reload_test()
229{
230	RET=0
231
232	devlink dev reload $DL_HANDLE
233	check_err $? "Failed to reload"
234
235	echo "y"> $DEBUGFS_DIR/fail_reload
236	check_err $? "Failed to setup devlink reload to fail"
237
238	devlink dev reload $DL_HANDLE
239	check_fail $? "Unexpected success of devlink reload"
240
241	echo "n"> $DEBUGFS_DIR/fail_reload
242	check_err $? "Failed to setup devlink reload not to fail"
243
244	devlink dev reload $DL_HANDLE
245	check_err $? "Failed to reload after set not to fail"
246
247	echo "y"> $DEBUGFS_DIR/dont_allow_reload
248	check_err $? "Failed to forbid devlink reload"
249
250	devlink dev reload $DL_HANDLE
251	check_fail $? "Unexpected success of devlink reload"
252
253	echo "n"> $DEBUGFS_DIR/dont_allow_reload
254	check_err $? "Failed to re-enable devlink reload"
255
256	devlink dev reload $DL_HANDLE
257	check_err $? "Failed to reload after re-enable"
258
259	log_test "reload test"
260}
261
262netns_reload_test()
263{
264	RET=0
265
266	ip netns add testns1
267	check_err $? "Failed add netns \"testns1\""
268	ip netns add testns2
269	check_err $? "Failed add netns \"testns2\""
270
271	devlink dev reload $DL_HANDLE netns testns1
272	check_err $? "Failed to reload into netns \"testns1\""
273
274	devlink -N testns1 dev reload $DL_HANDLE netns testns2
275	check_err $? "Failed to reload from netns \"testns1\" into netns \"testns2\""
276
277	ip netns del testns2
278	ip netns del testns1
279
280	# Wait until netns async cleanup is done.
281	devlink_wait 2000
282
283	log_test "netns reload test"
284}
285
286DUMMYDEV="dummytest"
287
288res_val_get()
289{
290	local netns=$1
291	local parentname=$2
292	local name=$3
293	local type=$4
294
295	cmd_jq "devlink -N $netns resource show $DL_HANDLE -j" \
296	       ".[][][] | select(.name == \"$parentname\").resources[] \
297	        | select(.name == \"$name\").$type"
298}
299
300resource_test()
301{
302	RET=0
303
304	ip netns add testns1
305	check_err $? "Failed add netns \"testns1\""
306	ip netns add testns2
307	check_err $? "Failed add netns \"testns2\""
308
309	devlink dev reload $DL_HANDLE netns testns1
310	check_err $? "Failed to reload into netns \"testns1\""
311
312	# Create dummy dev to add the address and routes on.
313
314	ip -n testns1 link add name $DUMMYDEV type dummy
315	check_err $? "Failed create dummy device"
316	ip -n testns1 link set $DUMMYDEV up
317	check_err $? "Failed bring up dummy device"
318	ip -n testns1 a a 192.0.1.1/24 dev $DUMMYDEV
319	check_err $? "Failed add an IP address to dummy device"
320
321	local occ=$(res_val_get testns1 IPv4 fib occ)
322	local limit=$((occ+1))
323
324	# Set fib size limit to handle one another route only.
325
326	devlink -N testns1 resource set $DL_HANDLE path IPv4/fib size $limit
327	check_err $? "Failed to set IPv4/fib resource size"
328	local size_new=$(res_val_get testns1 IPv4 fib size_new)
329	[ "$size_new" -eq "$limit" ]
330	check_err $? "Unexpected \"size_new\" value (got $size_new, expected $limit)"
331
332	devlink -N testns1 dev reload $DL_HANDLE
333	check_err $? "Failed to reload"
334	local size=$(res_val_get testns1 IPv4 fib size)
335	[ "$size" -eq "$limit" ]
336	check_err $? "Unexpected \"size\" value (got $size, expected $limit)"
337
338	# Insert 2 routes, the first is going to be inserted,
339	# the second is expected to fail to be inserted.
340
341	ip -n testns1 r a 192.0.2.0/24 via 192.0.1.2
342	check_err $? "Failed to add route"
343
344	ip -n testns1 r a 192.0.3.0/24 via 192.0.1.2
345	check_fail $? "Unexpected successful route add over limit"
346
347	# Now create another dummy in second network namespace and
348	# insert two routes. That is over the limit of the netdevsim
349	# instance in the first namespace. Move the netdevsim instance
350	# into the second namespace and expect it to fail.
351
352	ip -n testns2 link add name $DUMMYDEV type dummy
353	check_err $? "Failed create dummy device"
354	ip -n testns2 link set $DUMMYDEV up
355	check_err $? "Failed bring up dummy device"
356	ip -n testns2 a a 192.0.1.1/24 dev $DUMMYDEV
357	check_err $? "Failed add an IP address to dummy device"
358	ip -n testns2 r a 192.0.2.0/24 via 192.0.1.2
359	check_err $? "Failed to add route"
360	ip -n testns2 r a 192.0.3.0/24 via 192.0.1.2
361	check_err $? "Failed to add route"
362
363	devlink -N testns1 dev reload $DL_HANDLE netns testns2
364	check_fail $? "Unexpected successful reload from netns \"testns1\" into netns \"testns2\""
365
366	devlink -N testns2 resource set $DL_HANDLE path IPv4/fib size ' -1'
367	check_err $? "Failed to reset IPv4/fib resource size"
368
369	devlink -N testns2 dev reload $DL_HANDLE netns 1
370	check_err $? "Failed to reload devlink back"
371
372	ip netns del testns2
373	ip netns del testns1
374
375	# Wait until netns async cleanup is done.
376	devlink_wait 2000
377
378	log_test "resource test"
379}
380
381info_get()
382{
383	local name=$1
384
385	cmd_jq "devlink dev info $DL_HANDLE -j" ".[][][\"$name\"]" "-e"
386}
387
388dev_info_test()
389{
390	RET=0
391
392	driver=$(info_get "driver")
393	check_err $? "Failed to get driver name"
394	[ "$driver" == "netdevsim" ]
395	check_err $? "Unexpected driver name $driver"
396
397	log_test "dev_info test"
398}
399
400empty_reporter_test()
401{
402	RET=0
403
404	devlink health show $DL_HANDLE reporter empty >/dev/null
405	check_err $? "Failed show empty reporter"
406
407	devlink health dump show $DL_HANDLE reporter empty >/dev/null
408	check_err $? "Failed show dump of empty reporter"
409
410	devlink health diagnose $DL_HANDLE reporter empty >/dev/null
411	check_err $? "Failed diagnose empty reporter"
412
413	devlink health recover $DL_HANDLE reporter empty
414	check_err $? "Failed recover empty reporter"
415
416	log_test "empty reporter test"
417}
418
419check_reporter_info()
420{
421	local name=$1
422	local expected_state=$2
423	local expected_error=$3
424	local expected_recover=$4
425	local expected_grace_period=$5
426	local expected_auto_recover=$6
427
428	local show=$(devlink health show $DL_HANDLE reporter $name -j | jq -e -r ".[][][]")
429	check_err $? "Failed show $name reporter"
430
431	local state=$(echo $show | jq -r ".state")
432	[ "$state" == "$expected_state" ]
433	check_err $? "Unexpected \"state\" value (got $state, expected $expected_state)"
434
435	local error=$(echo $show | jq -r ".error")
436	[ "$error" == "$expected_error" ]
437	check_err $? "Unexpected \"error\" value (got $error, expected $expected_error)"
438
439	local recover=`echo $show | jq -r ".recover"`
440	[ "$recover" == "$expected_recover" ]
441	check_err $? "Unexpected \"recover\" value (got $recover, expected $expected_recover)"
442
443	local grace_period=$(echo $show | jq -r ".grace_period")
444	check_err $? "Failed get $name reporter grace_period"
445	[ "$grace_period" == "$expected_grace_period" ]
446	check_err $? "Unexpected \"grace_period\" value (got $grace_period, expected $expected_grace_period)"
447
448	local auto_recover=$(echo $show | jq -r ".auto_recover")
449	[ "$auto_recover" == "$expected_auto_recover" ]
450	check_err $? "Unexpected \"auto_recover\" value (got $auto_recover, expected $expected_auto_recover)"
451}
452
453dummy_reporter_test()
454{
455	RET=0
456
457	check_reporter_info dummy healthy 0 0 0 true
458
459	devlink health set $DL_HANDLE reporter dummy auto_recover false
460	check_err $? "Failed to dummy reporter auto_recover option"
461
462	check_reporter_info dummy healthy 0 0 0 false
463
464	local BREAK_MSG="foo bar"
465	echo "$BREAK_MSG"> $DEBUGFS_DIR/health/break_health
466	check_err $? "Failed to break dummy reporter"
467
468	check_reporter_info dummy error 1 0 0 false
469
470	local dump=$(devlink health dump show $DL_HANDLE reporter dummy -j)
471	check_err $? "Failed show dump of dummy reporter"
472
473	local dump_break_msg=$(echo $dump | jq -r ".break_message")
474	[ "$dump_break_msg" == "$BREAK_MSG" ]
475	check_err $? "Unexpected dump break message value (got $dump_break_msg, expected $BREAK_MSG)"
476
477	devlink health dump clear $DL_HANDLE reporter dummy
478	check_err $? "Failed clear dump of dummy reporter"
479
480	devlink health recover $DL_HANDLE reporter dummy
481	check_err $? "Failed recover dummy reporter"
482
483	check_reporter_info dummy healthy 1 1 0 false
484
485	devlink health set $DL_HANDLE reporter dummy auto_recover true
486	check_err $? "Failed to dummy reporter auto_recover option"
487
488	check_reporter_info dummy healthy 1 1 0 true
489
490	echo "$BREAK_MSG"> $DEBUGFS_DIR/health/break_health
491	check_err $? "Failed to break dummy reporter"
492
493	check_reporter_info dummy healthy 2 2 0 true
494
495	local diagnose=$(devlink health diagnose $DL_HANDLE reporter dummy -j -p)
496	check_err $? "Failed show diagnose of dummy reporter"
497
498	local rcvrd_break_msg=$(echo $diagnose | jq -r ".recovered_break_message")
499	[ "$rcvrd_break_msg" == "$BREAK_MSG" ]
500	check_err $? "Unexpected recovered break message value (got $rcvrd_break_msg, expected $BREAK_MSG)"
501
502	devlink health set $DL_HANDLE reporter dummy grace_period 10
503	check_err $? "Failed to dummy reporter grace_period option"
504
505	check_reporter_info dummy healthy 2 2 10 true
506
507	echo "Y"> $DEBUGFS_DIR/health/fail_recover
508	check_err $? "Failed set dummy reporter recovery to fail"
509
510	echo "$BREAK_MSG"> $DEBUGFS_DIR/health/break_health
511	check_fail $? "Unexpected success of dummy reporter break"
512
513	check_reporter_info dummy error 3 2 10 true
514
515	devlink health recover $DL_HANDLE reporter dummy
516	check_fail $? "Unexpected success of dummy reporter recover"
517
518	echo "N"> $DEBUGFS_DIR/health/fail_recover
519	check_err $? "Failed set dummy reporter recovery to be successful"
520
521	devlink health recover $DL_HANDLE reporter dummy
522	check_err $? "Failed recover dummy reporter"
523
524	check_reporter_info dummy healthy 3 3 10 true
525
526	echo 8192 > $DEBUGFS_DIR/health/binary_len
527	check_err $? "Failed set dummy reporter binary len to 8192"
528
529	local dump=$(devlink health dump show $DL_HANDLE reporter dummy -j)
530	check_err $? "Failed show dump of dummy reporter"
531
532	devlink health dump clear $DL_HANDLE reporter dummy
533	check_err $? "Failed clear dump of dummy reporter"
534
535	log_test "dummy reporter test"
536}
537
538rate_leafs_get()
539{
540	local handle=$1
541
542	cmd_jq "devlink port function rate show -j" \
543	       '.[] | to_entries | .[] | select(.value.type == "leaf") | .key | select(contains("'$handle'"))'
544}
545
546rate_nodes_get()
547{
548	local handle=$1
549
550	cmd_jq "devlink port function rate show -j" \
551		'.[] | to_entries | .[] | select(.value.type == "node") | .key | select(contains("'$handle'"))'
552}
553
554rate_attr_set()
555{
556	local handle=$1
557	local name=$2
558	local value=$3
559	local units=$4
560
561	devlink port function rate set $handle $name $value$units
562}
563
564rate_attr_get()
565{
566	local handle=$1
567	local name=$2
568
569	cmd_jq "devlink port function rate show $handle -j" '.[][].'$name
570}
571
572rate_attr_tx_rate_check()
573{
574	local handle=$1
575	local name=$2
576	local rate=$3
577	local debug_file=$4
578
579	rate_attr_set $handle $name $rate mbit
580	check_err $? "Failed to set $name value"
581
582	local debug_value=$(cat $debug_file)
583	check_err $? "Failed to read $name value from debugfs"
584	[ "$debug_value" == "$rate" ]
585	check_err $? "Unexpected $name debug value $debug_value != $rate"
586
587	local api_value=$(( $(rate_attr_get $handle $name) * 8 / 1000000 ))
588	check_err $? "Failed to get $name attr value"
589	[ "$api_value" == "$rate" ]
590	check_err $? "Unexpected $name attr value $api_value != $rate"
591}
592
593rate_attr_parent_check()
594{
595	local handle=$1
596	local parent=$2
597	local debug_file=$3
598
599	rate_attr_set $handle parent $parent
600	check_err $? "Failed to set parent"
601
602	debug_value=$(cat $debug_file)
603	check_err $? "Failed to get parent debugfs value"
604	[ "$debug_value" == "$parent" ]
605	check_err $? "Unexpected parent debug value $debug_value != $parent"
606
607	api_value=$(rate_attr_get $r_obj parent)
608	check_err $? "Failed to get parent attr value"
609	[ "$api_value" == "$parent" ]
610	check_err $? "Unexpected parent attr value $api_value != $parent"
611}
612
613rate_attr_tc_bw_check()
614{
615	local handle=$1
616	local tc_bw=$2
617	local debug_file=$3
618
619	local tc_bw_str=""
620	for bw in $tc_bw; do
621		local tc=${bw%%:*}
622		local value=${bw##*:}
623		tc_bw_str="$tc_bw_str $tc:$value"
624	done
625	tc_bw_str=${tc_bw_str# }
626
627	rate_attr_set "$handle" tc-bw "$tc_bw_str"
628	check_err $? "Failed to set tc-bw values"
629
630	for bw in $tc_bw; do
631		local tc=${bw%%:*}
632		local value=${bw##*:}
633		local debug_value
634		debug_value=$(cat "$debug_file"/tc"${tc}"_bw)
635		check_err $? "Failed to read tc-bw value from debugfs for tc$tc"
636		[ "$debug_value" == "$value" ]
637		check_err $? "Unexpected tc-bw debug value for tc$tc: $debug_value != $value"
638	done
639
640	for bw in $tc_bw; do
641		local tc=${bw%%:*}
642		local expected_value=${bw##*:}
643		local api_value
644		api_value=$(rate_attr_get "$handle" tc_"$tc")
645		if [ "$api_value" = "null" ]; then
646			api_value=0
647		fi
648		[ "$api_value" == "$expected_value" ]
649		check_err $? "Unexpected tc-bw value for tc$tc: $api_value != $expected_value"
650	done
651}
652
653rate_node_add()
654{
655	local handle=$1
656
657	devlink port function rate add $handle
658}
659
660rate_node_del()
661{
662	local handle=$1
663
664	devlink port function rate del $handle
665}
666
667rate_test()
668{
669	RET=0
670
671	echo $VF_COUNT > /sys/bus/netdevsim/devices/$DEV_NAME/sriov_numvfs
672	devlink dev eswitch set $DL_HANDLE mode switchdev
673	local leafs=`rate_leafs_get $DL_HANDLE`
674	local num_leafs=`echo $leafs | wc -w`
675	[ "$num_leafs" == "$VF_COUNT" ]
676	check_err $? "Expected $VF_COUNT rate leafs but got $num_leafs"
677
678	rate=10
679	for r_obj in $leafs
680	do
681		rate_attr_tx_rate_check $r_obj tx_share $rate \
682			$DEBUGFS_DIR/ports/${r_obj##*/}/tx_share
683		rate=$(($rate+10))
684	done
685
686	rate=100
687	for r_obj in $leafs
688	do
689		rate_attr_tx_rate_check $r_obj tx_max $rate \
690			$DEBUGFS_DIR/ports/${r_obj##*/}/tx_max
691		rate=$(($rate+100))
692	done
693
694	local tc_bw="0:0 1:40 2:0 3:0 4:0 5:0 6:60 7:0"
695	for r_obj in $leafs
696	do
697		rate_attr_tc_bw_check "$r_obj" "$tc_bw" \
698			"$DEBUGFS_DIR"/ports/"${r_obj##*/}"
699	done
700
701	local node1_name='group1'
702	local node1="$DL_HANDLE/$node1_name"
703	rate_node_add "$node1"
704	check_err $? "Failed to add node $node1"
705
706	local num_nodes=`rate_nodes_get $DL_HANDLE | wc -w`
707	[ $num_nodes == 1 ]
708	check_err $? "Expected 1 rate node in output but got $num_nodes"
709
710	local node_tx_share=10
711	rate_attr_tx_rate_check $node1 tx_share $node_tx_share \
712		$DEBUGFS_DIR/rate_nodes/${node1##*/}/tx_share
713
714	local node_tx_max=100
715	rate_attr_tx_rate_check $node1 tx_max $node_tx_max \
716		$DEBUGFS_DIR/rate_nodes/${node1##*/}/tx_max
717
718
719	local tc_bw="0:20 1:0 2:0 3:0 4:0 5:20 6:60 7:0"
720	rate_attr_tc_bw_check $node1 "$tc_bw" \
721		"$DEBUGFS_DIR"/rate_nodes/"${node1##*/}"
722
723
724	rate_node_del "$node1"
725	check_err $? "Failed to delete node $node1"
726	local num_nodes=`rate_nodes_get $DL_HANDLE | wc -w`
727	[ $num_nodes == 0 ]
728	check_err $? "Expected 0 rate node but got $num_nodes"
729
730	local node1_name='group1'
731	local node1="$DL_HANDLE/$node1_name"
732	rate_node_add "$node1"
733	check_err $? "Failed to add node $node1"
734
735	rate_attr_parent_check $r_obj $node1_name \
736		$DEBUGFS_DIR/ports/${r_obj##*/}/rate_parent
737
738	local node2_name='group2'
739	local node2="$DL_HANDLE/$node2_name"
740	rate_node_add "$node2"
741	check_err $? "Failed to add node $node2"
742
743	rate_attr_parent_check $node2 $node1_name \
744		$DEBUGFS_DIR/rate_nodes/$node2_name/rate_parent
745	rate_node_del "$node2"
746	check_err $? "Failed to delete node $node2"
747	rate_attr_set "$r_obj" noparent
748	check_err $? "Failed to unset $r_obj parent node"
749	rate_node_del "$node1"
750	check_err $? "Failed to delete node $node1"
751
752	log_test "rate test"
753}
754
755setup_prepare()
756{
757	modprobe netdevsim
758	echo "$BUS_ADDR $PORT_COUNT" > /sys/bus/netdevsim/new_device
759	while [ ! -d $SYSFS_NET_DIR ] ; do :; done
760}
761
762cleanup()
763{
764	pre_cleanup
765	echo "$BUS_ADDR" > /sys/bus/netdevsim/del_device
766	modprobe -r netdevsim
767}
768
769trap cleanup EXIT
770
771setup_prepare
772
773tests_run
774
775exit $EXIT_STATUS
776