summaryrefslogtreecommitdiff
path: root/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl.c
blob: a146a44634e9d4cb97fbe7b9f3b7cdda2c0f5910 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
/* Copyright (c) 2017-2018 Mellanox Technologies. All rights reserved */

#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/errno.h>
#include <linux/list.h>
#include <linux/string.h>
#include <linux/rhashtable.h>
#include <linux/netdevice.h>
#include <net/net_namespace.h>
#include <net/tc_act/tc_vlan.h>

#include "reg.h"
#include "core.h"
#include "resources.h"
#include "spectrum.h"
#include "core_acl_flex_keys.h"
#include "core_acl_flex_actions.h"
#include "spectrum_acl_tcam.h"

struct mlxsw_sp_acl {
	struct mlxsw_sp *mlxsw_sp;
	struct mlxsw_afk *afk;
	struct mlxsw_sp_fid *dummy_fid;
	struct rhashtable ruleset_ht;
	struct list_head rules;
	struct {
		struct delayed_work dw;
		unsigned long interval;	/* ms */
#define MLXSW_SP_ACL_RULE_ACTIVITY_UPDATE_PERIOD_MS 1000
	} rule_activity_update;
	struct mlxsw_sp_acl_tcam tcam;
};

struct mlxsw_afk *mlxsw_sp_acl_afk(struct mlxsw_sp_acl *acl)
{
	return acl->afk;
}

struct mlxsw_sp_acl_block_binding {
	struct list_head list;
	struct net_device *dev;
	struct mlxsw_sp_port *mlxsw_sp_port;
	bool ingress;
};

struct mlxsw_sp_acl_block {
	struct list_head binding_list;
	struct mlxsw_sp_acl_ruleset *ruleset_zero;
	struct mlxsw_sp *mlxsw_sp;
	unsigned int rule_count;
	unsigned int disable_count;
};

struct mlxsw_sp_acl_ruleset_ht_key {
	struct mlxsw_sp_acl_block *block;
	u32 chain_index;
	const struct mlxsw_sp_acl_profile_ops *ops;
};

struct mlxsw_sp_acl_ruleset {
	struct rhash_head ht_node; /* Member of acl HT */
	struct mlxsw_sp_acl_ruleset_ht_key ht_key;
	struct rhashtable rule_ht;
	unsigned int ref_count;
	unsigned long priv[0];
	/* priv has to be always the last item */
};

struct mlxsw_sp_acl_rule {
	struct rhash_head ht_node; /* Member of rule HT */
	struct list_head list;
	unsigned long cookie; /* HT key */
	struct mlxsw_sp_acl_ruleset *ruleset;
	struct mlxsw_sp_acl_rule_info *rulei;
	u64 last_used;
	u64 last_packets;
	u64 last_bytes;
	unsigned long priv[0];
	/* priv has to be always the last item */
};

static const struct rhashtable_params mlxsw_sp_acl_ruleset_ht_params = {
	.key_len = sizeof(struct mlxsw_sp_acl_ruleset_ht_key),
	.key_offset = offsetof(struct mlxsw_sp_acl_ruleset, ht_key),
	.head_offset = offsetof(struct mlxsw_sp_acl_ruleset, ht_node),
	.automatic_shrinking = true,
};

static const struct rhashtable_params mlxsw_sp_acl_rule_ht_params = {
	.key_len = sizeof(unsigned long),
	.key_offset = offsetof(struct mlxsw_sp_acl_rule, cookie),
	.head_offset = offsetof(struct mlxsw_sp_acl_rule, ht_node),
	.automatic_shrinking = true,
};

struct mlxsw_sp_fid *mlxsw_sp_acl_dummy_fid(struct mlxsw_sp *mlxsw_sp)
{
	return mlxsw_sp->acl->dummy_fid;
}

struct mlxsw_sp *mlxsw_sp_acl_block_mlxsw_sp(struct mlxsw_sp_acl_block *block)
{
	return block->mlxsw_sp;
}

unsigned int mlxsw_sp_acl_block_rule_count(struct mlxsw_sp_acl_block *block)
{
	return block ? block->rule_count : 0;
}

void mlxsw_sp_acl_block_disable_inc(struct mlxsw_sp_acl_block *block)
{
	if (block)
		block->disable_count++;
}

void mlxsw_sp_acl_block_disable_dec(struct mlxsw_sp_acl_block *block)
{
	if (block)
		block->disable_count--;
}

bool mlxsw_sp_acl_block_disabled(struct mlxsw_sp_acl_block *block)
{
	return block->disable_count;
}

bool mlxsw_sp_acl_block_is_egress_bound(struct mlxsw_sp_acl_block *block)
{
	struct mlxsw_sp_acl_block_binding *binding;

	list_for_each_entry(binding, &block->binding_list, list) {
		if (!binding->ingress)
			return true;
	}
	return false;
}

static bool
mlxsw_sp_acl_ruleset_is_singular(const struct mlxsw_sp_acl_ruleset *ruleset)
{
	/* We hold a reference on ruleset ourselves */
	return ruleset->ref_count == 2;
}

static int
mlxsw_sp_acl_ruleset_bind(struct mlxsw_sp *mlxsw_sp,
			  struct mlxsw_sp_acl_block *block,
			  struct mlxsw_sp_acl_block_binding *binding)
{
	struct mlxsw_sp_acl_ruleset *ruleset = block->ruleset_zero;
	const struct mlxsw_sp_acl_profile_ops *ops = ruleset->ht_key.ops;

	return ops->ruleset_bind(mlxsw_sp, ruleset->priv,
				 binding->mlxsw_sp_port, binding->ingress);
}

static void
mlxsw_sp_acl_ruleset_unbind(struct mlxsw_sp *mlxsw_sp,
			    struct mlxsw_sp_acl_block *block,
			    struct mlxsw_sp_acl_block_binding *binding)
{
	struct mlxsw_sp_acl_ruleset *ruleset = block->ruleset_zero;
	const struct mlxsw_sp_acl_profile_ops *ops = ruleset->ht_key.ops;

	ops->ruleset_unbind(mlxsw_sp, ruleset->priv,
			    binding->mlxsw_sp_port, binding->ingress);
}

static bool mlxsw_sp_acl_ruleset_block_bound(struct mlxsw_sp_acl_block *block)
{
	return block->ruleset_zero;
}

static int
mlxsw_sp_acl_ruleset_block_bind(struct mlxsw_sp *mlxsw_sp,
				struct mlxsw_sp_acl_ruleset *ruleset,
				struct mlxsw_sp_acl_block *block)
{
	struct mlxsw_sp_acl_block_binding *binding;
	int err;

	block->ruleset_zero = ruleset;
	list_for_each_entry(binding, &block->binding_list, list) {
		err = mlxsw_sp_acl_ruleset_bind(mlxsw_sp, block, binding);
		if (err)
			goto rollback;
	}
	return 0;

rollback:
	list_for_each_entry_continue_reverse(binding, &block->binding_list,
					     list)
		mlxsw_sp_acl_ruleset_unbind(mlxsw_sp, block, binding);
	block->ruleset_zero = NULL;

	return err;
}

static void
mlxsw_sp_acl_ruleset_block_unbind(struct mlxsw_sp *mlxsw_sp,
				  struct mlxsw_sp_acl_ruleset *ruleset,
				  struct mlxsw_sp_acl_block *block)
{
	struct mlxsw_sp_acl_block_binding *binding;

	list_for_each_entry(binding, &block->binding_list, list)
		mlxsw_sp_acl_ruleset_unbind(mlxsw_sp, block, binding);
	block->ruleset_zero = NULL;
}

struct mlxsw_sp_acl_block *mlxsw_sp_acl_block_create(struct mlxsw_sp *mlxsw_sp,
						     struct net *net)
{
	struct mlxsw_sp_acl_block *block;

	block = kzalloc(sizeof(*block), GFP_KERNEL);
	if (!block)
		return NULL;
	INIT_LIST_HEAD(&block->binding_list);
	block->mlxsw_sp = mlxsw_sp;
	return block;
}

void mlxsw_sp_acl_block_destroy(struct mlxsw_sp_acl_block *block)
{
	WARN_ON(!list_empty(&block->binding_list));
	kfree(block);
}

static struct mlxsw_sp_acl_block_binding *
mlxsw_sp_acl_block_lookup(struct mlxsw_sp_acl_block *block,
			  struct mlxsw_sp_port *mlxsw_sp_port, bool ingress)
{
	struct mlxsw_sp_acl_block_binding *binding;

	list_for_each_entry(binding, &block->binding_list, list)
		if (binding->mlxsw_sp_port == mlxsw_sp_port &&
		    binding->ingress == ingress)
			return binding;
	return NULL;
}

int mlxsw_sp_acl_block_bind(struct mlxsw_sp *mlxsw_sp,
			    struct mlxsw_sp_acl_block *block,
			    struct mlxsw_sp_port *mlxsw_sp_port,
			    bool ingress)
{
	struct mlxsw_sp_acl_block_binding *binding;
	int err;

	if (WARN_ON(mlxsw_sp_acl_block_lookup(block, mlxsw_sp_port, ingress)))
		return -EEXIST;

	binding = kzalloc(sizeof(*binding), GFP_KERNEL);
	if (!binding)
		return -ENOMEM;
	binding->mlxsw_sp_port = mlxsw_sp_port;
	binding->ingress = ingress;

	if (mlxsw_sp_acl_ruleset_block_bound(block)) {
		err = mlxsw_sp_acl_ruleset_bind(mlxsw_sp, block, binding);
		if (err)
			goto err_ruleset_bind;
	}

	list_add(&binding->list, &block->binding_list);
	return 0;

err_ruleset_bind:
	kfree(binding);
	return err;
}

int mlxsw_sp_acl_block_unbind(struct mlxsw_sp *mlxsw_sp,
			      struct mlxsw_sp_acl_block *block,
			      struct mlxsw_sp_port *mlxsw_sp_port,
			      bool ingress)
{
	struct mlxsw_sp_acl_block_binding *binding;

	binding = mlxsw_sp_acl_block_lookup(block, mlxsw_sp_port, ingress);
	if (!binding)
		return -ENOENT;

	list_del(&binding->list);

	if (mlxsw_sp_acl_ruleset_block_bound(block))
		mlxsw_sp_acl_ruleset_unbind(mlxsw_sp, block, binding);

	kfree(binding);
	return 0;
}

static struct mlxsw_sp_acl_ruleset *
mlxsw_sp_acl_ruleset_create(struct mlxsw_sp *mlxsw_sp,
			    struct mlxsw_sp_acl_block *block, u32 chain_index,
			    const struct mlxsw_sp_acl_profile_ops *ops,
			    struct mlxsw_afk_element_usage *tmplt_elusage)
{
	struct mlxsw_sp_acl *acl = mlxsw_sp->acl;
	struct mlxsw_sp_acl_ruleset *ruleset;
	size_t alloc_size;
	int err;

	alloc_size = sizeof(*ruleset) + ops->ruleset_priv_size;
	ruleset = kzalloc(alloc_size, GFP_KERNEL);
	if (!ruleset)
		return ERR_PTR(-ENOMEM);
	ruleset->ref_count = 1;
	ruleset->ht_key.block = block;
	ruleset->ht_key.chain_index = chain_index;
	ruleset->ht_key.ops = ops;

	err = rhashtable_init(&ruleset->rule_ht, &mlxsw_sp_acl_rule_ht_params);
	if (err)
		goto err_rhashtable_init;

	err = ops->ruleset_add(mlxsw_sp, &acl->tcam, ruleset->priv,
			       tmplt_elusage);
	if (err)
		goto err_ops_ruleset_add;

	err = rhashtable_insert_fast(&acl->ruleset_ht, &ruleset->ht_node,
				     mlxsw_sp_acl_ruleset_ht_params);
	if (err)
		goto err_ht_insert;

	return ruleset;

err_ht_insert:
	ops->ruleset_del(mlxsw_sp, ruleset->priv);
err_ops_ruleset_add:
	rhashtable_destroy(&ruleset->rule_ht);
err_rhashtable_init:
	kfree(ruleset);
	return ERR_PTR(err);
}

static void mlxsw_sp_acl_ruleset_destroy(struct mlxsw_sp *mlxsw_sp,
					 struct mlxsw_sp_acl_ruleset *ruleset)
{
	const struct mlxsw_sp_acl_profile_ops *ops = ruleset->ht_key.ops;
	struct mlxsw_sp_acl *acl = mlxsw_sp->acl;

	rhashtable_remove_fast(&acl->ruleset_ht, &ruleset->ht_node,
			       mlxsw_sp_acl_ruleset_ht_params);
	ops->ruleset_del(mlxsw_sp, ruleset->priv);
	rhashtable_destroy(&ruleset->rule_ht);
	kfree(ruleset);
}

static void mlxsw_sp_acl_ruleset_ref_inc(struct mlxsw_sp_acl_ruleset *ruleset)
{
	ruleset->ref_count++;
}

static void mlxsw_sp_acl_ruleset_ref_dec(struct mlxsw_sp *mlxsw_sp,
					 struct mlxsw_sp_acl_ruleset *ruleset)
{
	if (--ruleset->ref_count)
		return;
	mlxsw_sp_acl_ruleset_destroy(mlxsw_sp, ruleset);
}

static struct mlxsw_sp_acl_ruleset *
__mlxsw_sp_acl_ruleset_lookup(struct mlxsw_sp_acl *acl,
			      struct mlxsw_sp_acl_block *block, u32 chain_index,
			      const struct mlxsw_sp_acl_profile_ops *ops)
{
	struct mlxsw_sp_acl_ruleset_ht_key ht_key;

	memset(&ht_key, 0, sizeof(ht_key));
	ht_key.block = block;
	ht_key.chain_index = chain_index;
	ht_key.ops = ops;
	return rhashtable_lookup_fast(&acl->ruleset_ht, &ht_key,
				      mlxsw_sp_acl_ruleset_ht_params);
}

struct mlxsw_sp_acl_ruleset *
mlxsw_sp_acl_ruleset_lookup(struct mlxsw_sp *mlxsw_sp,
			    struct mlxsw_sp_acl_block *block, u32 chain_index,
			    enum mlxsw_sp_acl_profile profile)
{
	const struct mlxsw_sp_acl_profile_ops *ops;
	struct mlxsw_sp_acl *acl = mlxsw_sp->acl;
	struct mlxsw_sp_acl_ruleset *ruleset;

	ops = mlxsw_sp_acl_tcam_profile_ops(mlxsw_sp, profile);
	if (!ops)
		return ERR_PTR(-EINVAL);
	ruleset = __mlxsw_sp_acl_ruleset_lookup(acl, block, chain_index, ops);
	if (!ruleset)
		return ERR_PTR(-ENOENT);
	return ruleset;
}

struct mlxsw_sp_acl_ruleset *
mlxsw_sp_acl_ruleset_get(struct mlxsw_sp *mlxsw_sp,
			 struct mlxsw_sp_acl_block *block, u32 chain_index,
			 enum mlxsw_sp_acl_profile profile,
			 struct mlxsw_afk_element_usage *tmplt_elusage)
{
	const struct mlxsw_sp_acl_profile_ops *ops;
	struct mlxsw_sp_acl *acl = mlxsw_sp->acl;
	struct mlxsw_sp_acl_ruleset *ruleset;

	ops = mlxsw_sp_acl_tcam_profile_ops(mlxsw_sp, profile);
	if (!ops)
		return ERR_PTR(-EINVAL);

	ruleset = __mlxsw_sp_acl_ruleset_lookup(acl, block, chain_index, ops);
	if (ruleset) {
		mlxsw_sp_acl_ruleset_ref_inc(ruleset);
		return ruleset;
	}
	return mlxsw_sp_acl_ruleset_create(mlxsw_sp, block, chain_index, ops,
					   tmplt_elusage);
}

void mlxsw_sp_acl_ruleset_put(struct mlxsw_sp *mlxsw_sp,
			      struct mlxsw_sp_acl_ruleset *ruleset)
{
	mlxsw_sp_acl_ruleset_ref_dec(mlxsw_sp, ruleset);
}

u16 mlxsw_sp_acl_ruleset_group_id(struct mlxsw_sp_acl_ruleset *ruleset)
{
	const struct mlxsw_sp_acl_profile_ops *ops = ruleset->ht_key.ops;

	return ops->ruleset_group_id(ruleset->priv);
}

struct mlxsw_sp_acl_rule_info *
mlxsw_sp_acl_rulei_create(struct mlxsw_sp_acl *acl,
			  struct mlxsw_afa_block *afa_block)
{
	struct mlxsw_sp_acl_rule_info *rulei;
	int err;

	rulei = kzalloc(sizeof(*rulei), GFP_KERNEL);
	if (!rulei)
		return NULL;

	if (afa_block) {
		rulei->act_block = afa_block;
		return rulei;
	}

	rulei->act_block = mlxsw_afa_block_create(acl->mlxsw_sp->afa);
	if (IS_ERR(rulei->act_block)) {
		err = PTR_ERR(rulei->act_block);
		goto err_afa_block_create;
	}
	rulei->action_created = 1;
	return rulei;

err_afa_block_create:
	kfree(rulei);
	return ERR_PTR(err);
}

void mlxsw_sp_acl_rulei_destroy(struct mlxsw_sp_acl_rule_info *rulei)
{
	if (rulei->action_created)
		mlxsw_afa_block_destroy(rulei->act_block);
	kfree(rulei);
}

int mlxsw_sp_acl_rulei_commit(struct mlxsw_sp_acl_rule_info *rulei)
{
	return mlxsw_afa_block_commit(rulei->act_block);
}

void mlxsw_sp_acl_rulei_priority(struct mlxsw_sp_acl_rule_info *rulei,
				 unsigned int priority)
{
	rulei->priority = priority >> 16;
}

void mlxsw_sp_acl_rulei_keymask_u32(struct mlxsw_sp_acl_rule_info *rulei,
				    enum mlxsw_afk_element element,
				    u32 key_value, u32 mask_value)
{
	mlxsw_afk_values_add_u32(&rulei->values, element,
				 key_value, mask_value);
}

void mlxsw_sp_acl_rulei_keymask_buf(struct mlxsw_sp_acl_rule_info *rulei,
				    enum mlxsw_afk_element element,
				    const char *key_value,
				    const char *mask_value, unsigned int len)
{
	mlxsw_afk_values_add_buf(&rulei->values, element,
				 key_value, mask_value, len);
}

int mlxsw_sp_acl_rulei_act_continue(struct mlxsw_sp_acl_rule_info *rulei)
{
	return mlxsw_afa_block_continue(rulei->act_block);
}

int mlxsw_sp_acl_rulei_act_jump(struct mlxsw_sp_acl_rule_info *rulei,
				u16 group_id)
{
	return mlxsw_afa_block_jump(rulei->act_block, group_id);
}

int mlxsw_sp_acl_rulei_act_terminate(struct mlxsw_sp_acl_rule_info *rulei)
{
	return mlxsw_afa_block_terminate(rulei->act_block);
}

int mlxsw_sp_acl_rulei_act_drop(struct mlxsw_sp_acl_rule_info *rulei)
{
	return mlxsw_afa_block_append_drop(rulei->act_block);
}

int mlxsw_sp_acl_rulei_act_trap(struct mlxsw_sp_acl_rule_info *rulei)
{
	return mlxsw_afa_block_append_trap(rulei->act_block,
					   MLXSW_TRAP_ID_ACL0);
}

int mlxsw_sp_acl_rulei_act_fwd(struct mlxsw_sp *mlxsw_sp,
			       struct mlxsw_sp_acl_rule_info *rulei,
			       struct net_device *out_dev,
			       struct netlink_ext_ack *extack)
{
	struct mlxsw_sp_port *mlxsw_sp_port;
	u8 local_port;
	bool in_port;

	if (out_dev) {
		if (!mlxsw_sp_port_dev_check(out_dev)) {
			NL_SET_ERR_MSG_MOD(extack, "Invalid output device");
			return -EINVAL;
		}
		mlxsw_sp_port = netdev_priv(out_dev);
		if (mlxsw_sp_port->mlxsw_sp != mlxsw_sp) {
			NL_SET_ERR_MSG_MOD(extack, "Invalid output device");
			return -EINVAL;
		}
		local_port = mlxsw_sp_port->local_port;
		in_port = false;
	} else {
		/* If out_dev is NULL, the caller wants to
		 * set forward to ingress port.
		 */
		local_port = 0;
		in_port = true;
	}
	return mlxsw_afa_block_append_fwd(rulei->act_block,
					  local_port, in_port, extack);
}

int mlxsw_sp_acl_rulei_act_mirror(struct mlxsw_sp *mlxsw_sp,
				  struct mlxsw_sp_acl_rule_info *rulei,
				  struct mlxsw_sp_acl_block *block,
				  struct net_device *out_dev,
				  struct netlink_ext_ack *extack)
{
	struct mlxsw_sp_acl_block_binding *binding;
	struct mlxsw_sp_port *in_port;

	if (!list_is_singular(&block->binding_list)) {
		NL_SET_ERR_MSG_MOD(extack, "Only a single mirror source is allowed");
		return -EOPNOTSUPP;
	}
	binding = list_first_entry(&block->binding_list,
				   struct mlxsw_sp_acl_block_binding, list);
	in_port = binding->mlxsw_sp_port;

	return mlxsw_afa_block_append_mirror(rulei->act_block,
					     in_port->local_port,
					     out_dev,
					     binding->ingress,
					     extack);
}

int mlxsw_sp_acl_rulei_act_vlan(struct mlxsw_sp *mlxsw_sp,
				struct mlxsw_sp_acl_rule_info *rulei,
				u32 action, u16 vid, u16 proto, u8 prio,
				struct netlink_ext_ack *extack)
{
	u8 ethertype;

	if (action == FLOW_ACTION_VLAN_MANGLE) {
		switch (proto) {
		case ETH_P_8021Q:
			ethertype = 0;
			break;
		case ETH_P_8021AD:
			ethertype = 1;
			break;
		default:
			NL_SET_ERR_MSG_MOD(extack, "Unsupported VLAN protocol");
			dev_err(mlxsw_sp->bus_info->dev, "Unsupported VLAN protocol %#04x\n",
				proto);
			return -EINVAL;
		}

		return mlxsw_afa_block_append_vlan_modify(rulei->act_block,
							  vid, prio, ethertype,
							  extack);
	} else {
		NL_SET_ERR_MSG_MOD(extack, "Unsupported VLAN action");
		dev_err(mlxsw_sp->bus_info->dev, "Unsupported VLAN action\n");
		return -EINVAL;
	}
}

int mlxsw_sp_acl_rulei_act_count(struct mlxsw_sp *mlxsw_sp,
				 struct mlxsw_sp_acl_rule_info *rulei,
				 struct netlink_ext_ack *extack)
{
	return mlxsw_afa_block_append_counter(rulei->act_block,
					      &rulei->counter_index, extack);
}

int mlxsw_sp_acl_rulei_act_fid_set(struct mlxsw_sp *mlxsw_sp,
				   struct mlxsw_sp_acl_rule_info *rulei,
				   u16 fid, struct netlink_ext_ack *extack)
{
	return mlxsw_afa_block_append_fid_set(rulei->act_block, fid, extack);
}

struct mlxsw_sp_acl_rule *
mlxsw_sp_acl_rule_create(struct mlxsw_sp *mlxsw_sp,
			 struct mlxsw_sp_acl_ruleset *ruleset,
			 unsigned long cookie,
			 struct mlxsw_afa_block *afa_block,
			 struct netlink_ext_ack *extack)
{
	const struct mlxsw_sp_acl_profile_ops *ops = ruleset->ht_key.ops;
	struct mlxsw_sp_acl_rule *rule;
	int err;

	mlxsw_sp_acl_ruleset_ref_inc(ruleset);
	rule = kzalloc(sizeof(*rule) + ops->rule_priv_size,
		       GFP_KERNEL);
	if (!rule) {
		err = -ENOMEM;
		goto err_alloc;
	}
	rule->cookie = cookie;
	rule->ruleset = ruleset;

	rule->rulei = mlxsw_sp_acl_rulei_create(mlxsw_sp->acl, afa_block);
	if (IS_ERR(rule->rulei)) {
		err = PTR_ERR(rule->rulei);
		goto err_rulei_create;
	}

	return rule;

err_rulei_create:
	kfree(rule);
err_alloc:
	mlxsw_sp_acl_ruleset_ref_dec(mlxsw_sp, ruleset);
	return ERR_PTR(err);
}

void mlxsw_sp_acl_rule_destroy(struct mlxsw_sp *mlxsw_sp,
			       struct mlxsw_sp_acl_rule *rule)
{
	struct mlxsw_sp_acl_ruleset *ruleset = rule->ruleset;

	mlxsw_sp_acl_rulei_destroy(rule->rulei);
	kfree(rule);
	mlxsw_sp_acl_ruleset_ref_dec(mlxsw_sp, ruleset);
}

int mlxsw_sp_acl_rule_add(struct mlxsw_sp *mlxsw_sp,
			  struct mlxsw_sp_acl_rule *rule)
{
	struct mlxsw_sp_acl_ruleset *ruleset = rule->ruleset;
	const struct mlxsw_sp_acl_profile_ops *ops = ruleset->ht_key.ops;
	int err;

	err = ops->rule_add(mlxsw_sp, ruleset->priv, rule->priv, rule->rulei);
	if (err)
		return err;

	err = rhashtable_insert_fast(&ruleset->rule_ht, &rule->ht_node,
				     mlxsw_sp_acl_rule_ht_params);
	if (err)
		goto err_rhashtable_insert;

	if (!ruleset->ht_key.chain_index &&
	    mlxsw_sp_acl_ruleset_is_singular(ruleset)) {
		/* We only need ruleset with chain index 0, the implicit
		 * one, to be directly bound to device. The rest of the
		 * rulesets are bound by "Goto action set".
		 */
		err = mlxsw_sp_acl_ruleset_block_bind(mlxsw_sp, ruleset,
						      ruleset->ht_key.block);
		if (err)
			goto err_ruleset_block_bind;
	}

	list_add_tail(&rule->list, &mlxsw_sp->acl->rules);
	ruleset->ht_key.block->rule_count++;
	return 0;

err_ruleset_block_bind:
	rhashtable_remove_fast(&ruleset->rule_ht, &rule->ht_node,
			       mlxsw_sp_acl_rule_ht_params);
err_rhashtable_insert:
	ops->rule_del(mlxsw_sp, rule->priv);
	return err;
}

void mlxsw_sp_acl_rule_del(struct mlxsw_sp *mlxsw_sp,
			   struct mlxsw_sp_acl_rule *rule)
{
	struct mlxsw_sp_acl_ruleset *ruleset = rule->ruleset;
	const struct mlxsw_sp_acl_profile_ops *ops = ruleset->ht_key.ops;

	ruleset->ht_key.block->rule_count--;
	list_del(&rule->list);
	if (!ruleset->ht_key.chain_index &&
	    mlxsw_sp_acl_ruleset_is_singular(ruleset))
		mlxsw_sp_acl_ruleset_block_unbind(mlxsw_sp, ruleset,
						  ruleset->ht_key.block);
	rhashtable_remove_fast(&ruleset->rule_ht, &rule->ht_node,
			       mlxsw_sp_acl_rule_ht_params);
	ops->rule_del(mlxsw_sp, rule->priv);
}

int mlxsw_sp_acl_rule_action_replace(struct mlxsw_sp *mlxsw_sp,
				     struct mlxsw_sp_acl_rule *rule,
				     struct mlxsw_afa_block *afa_block)
{
	struct mlxsw_sp_acl_ruleset *ruleset = rule->ruleset;
	const struct mlxsw_sp_acl_profile_ops *ops = ruleset->ht_key.ops;
	struct mlxsw_sp_acl_rule_info *rulei;

	rulei = mlxsw_sp_acl_rule_rulei(rule);
	rulei->act_block = afa_block;

	return ops->rule_action_replace(mlxsw_sp, rule->priv, rule->rulei);
}

struct mlxsw_sp_acl_rule *
mlxsw_sp_acl_rule_lookup(struct mlxsw_sp *mlxsw_sp,
			 struct mlxsw_sp_acl_ruleset *ruleset,
			 unsigned long cookie)
{
	return rhashtable_lookup_fast(&ruleset->rule_ht, &cookie,
				       mlxsw_sp_acl_rule_ht_params);
}

struct mlxsw_sp_acl_rule_info *
mlxsw_sp_acl_rule_rulei(struct mlxsw_sp_acl_rule *rule)
{
	return rule->rulei;
}

static int mlxsw_sp_acl_rule_activity_update(struct mlxsw_sp *mlxsw_sp,
					     struct mlxsw_sp_acl_rule *rule)
{
	struct mlxsw_sp_acl_ruleset *ruleset = rule->ruleset;
	const struct mlxsw_sp_acl_profile_ops *ops = ruleset->ht_key.ops;
	bool active;
	int err;

	err = ops->rule_activity_get(mlxsw_sp, rule->priv, &active);
	if (err)
		return err;
	if (active)
		rule->last_used = jiffies;
	return 0;
}

static int mlxsw_sp_acl_rules_activity_update(struct mlxsw_sp_acl *acl)
{
	struct mlxsw_sp_acl_rule *rule;
	int err;

	/* Protect internal structures from changes */
	rtnl_lock();
	list_for_each_entry(rule, &acl->rules, list) {
		err = mlxsw_sp_acl_rule_activity_update(acl->mlxsw_sp,
							rule);
		if (err)
			goto err_rule_update;
	}
	rtnl_unlock();
	return 0;

err_rule_update:
	rtnl_unlock();
	return err;
}

static void mlxsw_sp_acl_rule_activity_work_schedule(struct mlxsw_sp_acl *acl)
{
	unsigned long interval = acl->rule_activity_update.interval;

	mlxsw_core_schedule_dw(&acl->rule_activity_update.dw,
			       msecs_to_jiffies(interval));
}

static void mlxsw_sp_acl_rule_activity_update_work(struct work_struct *work)
{
	struct mlxsw_sp_acl *acl = container_of(work, struct mlxsw_sp_acl,
						rule_activity_update.dw.work);
	int err;

	err = mlxsw_sp_acl_rules_activity_update(acl);
	if (err)
		dev_err(acl->mlxsw_sp->bus_info->dev, "Could not update acl activity");

	mlxsw_sp_acl_rule_activity_work_schedule(acl);
}

int mlxsw_sp_acl_rule_get_stats(struct mlxsw_sp *mlxsw_sp,
				struct mlxsw_sp_acl_rule *rule,
				u64 *packets, u64 *bytes, u64 *last_use)

{
	struct mlxsw_sp_acl_rule_info *rulei;
	u64 current_packets;
	u64 current_bytes;
	int err;

	rulei = mlxsw_sp_acl_rule_rulei(rule);
	err = mlxsw_sp_flow_counter_get(mlxsw_sp, rulei->counter_index,
					&current_packets, &current_bytes);
	if (err)
		return err;

	*packets = current_packets - rule->last_packets;
	*bytes = current_bytes - rule->last_bytes;
	*last_use = rule->last_used;

	rule->last_bytes = current_bytes;
	rule->last_packets = current_packets;

	return 0;
}

int mlxsw_sp_acl_init(struct mlxsw_sp *mlxsw_sp)
{
	struct mlxsw_sp_fid *fid;
	struct mlxsw_sp_acl *acl;
	size_t alloc_size;
	int err;

	alloc_size = sizeof(*acl) + mlxsw_sp_acl_tcam_priv_size(mlxsw_sp);
	acl = kzalloc(alloc_size, GFP_KERNEL);
	if (!acl)
		return -ENOMEM;
	mlxsw_sp->acl = acl;
	acl->mlxsw_sp = mlxsw_sp;
	acl->afk = mlxsw_afk_create(MLXSW_CORE_RES_GET(mlxsw_sp->core,
						       ACL_FLEX_KEYS),
				    mlxsw_sp->afk_ops);
	if (!acl->afk) {
		err = -ENOMEM;
		goto err_afk_create;
	}

	err = rhashtable_init(&acl->ruleset_ht,
			      &mlxsw_sp_acl_ruleset_ht_params);
	if (err)
		goto err_rhashtable_init;

	fid = mlxsw_sp_fid_dummy_get(mlxsw_sp);
	if (IS_ERR(fid)) {
		err = PTR_ERR(fid);
		goto err_fid_get;
	}
	acl->dummy_fid = fid;

	INIT_LIST_HEAD(&acl->rules);
	err = mlxsw_sp_acl_tcam_init(mlxsw_sp, &acl->tcam);
	if (err)
		goto err_acl_ops_init;

	/* Create the delayed work for the rule activity_update */
	INIT_DELAYED_WORK(&acl->rule_activity_update.dw,
			  mlxsw_sp_acl_rule_activity_update_work);
	acl->rule_activity_update.interval = MLXSW_SP_ACL_RULE_ACTIVITY_UPDATE_PERIOD_MS;
	mlxsw_core_schedule_dw(&acl->rule_activity_update.dw, 0);
	return 0;

err_acl_ops_init:
	mlxsw_sp_fid_put(fid);
err_fid_get:
	rhashtable_destroy(&acl->ruleset_ht);
err_rhashtable_init:
	mlxsw_afk_destroy(acl->afk);
err_afk_create:
	kfree(acl);
	return err;
}

void mlxsw_sp_acl_fini(struct mlxsw_sp *mlxsw_sp)
{
	struct mlxsw_sp_acl *acl = mlxsw_sp->acl;

	cancel_delayed_work_sync(&mlxsw_sp->acl->rule_activity_update.dw);
	mlxsw_sp_acl_tcam_fini(mlxsw_sp, &acl->tcam);
	WARN_ON(!list_empty(&acl->rules));
	mlxsw_sp_fid_put(acl->dummy_fid);
	rhashtable_destroy(&acl->ruleset_ht);
	mlxsw_afk_destroy(acl->afk);
	kfree(acl);
}

u32 mlxsw_sp_acl_region_rehash_intrvl_get(struct mlxsw_sp *mlxsw_sp)
{
	struct mlxsw_sp_acl *acl = mlxsw_sp->acl;

	return mlxsw_sp_acl_tcam_vregion_rehash_intrvl_get(mlxsw_sp,
							   &acl->tcam);
}

int mlxsw_sp_acl_region_rehash_intrvl_set(struct mlxsw_sp *mlxsw_sp, u32 val)
{
	struct mlxsw_sp_acl *acl = mlxsw_sp->acl;

	return mlxsw_sp_acl_tcam_vregion_rehash_intrvl_set(mlxsw_sp,
							   &acl->tcam, val);
}