summaryrefslogtreecommitdiffstats
path: root/include/net/devlink.h
blob: 2116c88663a155634da926b0e2228c887b8a2fa7 (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
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * include/net/devlink.h - Network physical device Netlink interface
 * Copyright (c) 2016 Mellanox Technologies. All rights reserved.
 * Copyright (c) 2016 Jiri Pirko <jiri@mellanox.com>
 */
#ifndef _NET_DEVLINK_H_
#define _NET_DEVLINK_H_

#include <linux/device.h>
#include <linux/slab.h>
#include <linux/gfp.h>
#include <linux/list.h>
#include <linux/netdevice.h>
#include <linux/spinlock.h>
#include <linux/workqueue.h>
#include <linux/refcount.h>
#include <net/net_namespace.h>
#include <uapi/linux/devlink.h>

struct devlink_ops;

struct devlink {
	struct list_head list;
	struct list_head port_list;
	struct list_head sb_list;
	struct list_head dpipe_table_list;
	struct list_head resource_list;
	struct list_head param_list;
	struct list_head region_list;
	u32 snapshot_id;
	struct list_head reporter_list;
	struct mutex reporters_lock; /* protects reporter_list */
	struct devlink_dpipe_headers *dpipe_headers;
	struct list_head trap_list;
	struct list_head trap_group_list;
	const struct devlink_ops *ops;
	struct device *dev;
	possible_net_t _net;
	struct mutex lock;
	u8 reload_failed:1,
	   reload_enabled:1;
	char priv[0] __aligned(NETDEV_ALIGN);
};

struct devlink_port_phys_attrs {
	u32 port_number; /* Same value as "split group".
			  * A physical port which is visible to the user
			  * for a given port flavour.
			  */
	u32 split_subport_number;
};

struct devlink_port_pci_pf_attrs {
	u16 pf;	/* Associated PCI PF for this port. */
};

struct devlink_port_pci_vf_attrs {
	u16 pf;	/* Associated PCI PF for this port. */
	u16 vf;	/* Associated PCI VF for of the PCI PF for this port. */
};

struct devlink_port_attrs {
	u8 set:1,
	   split:1,
	   switch_port:1;
	enum devlink_port_flavour flavour;
	struct netdev_phys_item_id switch_id;
	union {
		struct devlink_port_phys_attrs phys;
		struct devlink_port_pci_pf_attrs pci_pf;
		struct devlink_port_pci_vf_attrs pci_vf;
	};
};

struct devlink_port {
	struct list_head list;
	struct list_head param_list;
	struct devlink *devlink;
	unsigned int index;
	bool registered;
	spinlock_t type_lock; /* Protects type and type_dev
			       * pointer consistency.
			       */
	enum devlink_port_type type;
	enum devlink_port_type desired_type;
	void *type_dev;
	struct devlink_port_attrs attrs;
	struct delayed_work type_warn_dw;
};

struct devlink_sb_pool_info {
	enum devlink_sb_pool_type pool_type;
	u32 size;
	enum devlink_sb_threshold_type threshold_type;
	u32 cell_size;
};

/**
 * struct devlink_dpipe_field - dpipe field object
 * @name: field name
 * @id: index inside the headers field array
 * @bitwidth: bitwidth
 * @mapping_type: mapping type
 */
struct devlink_dpipe_field {
	const char *name;
	unsigned int id;
	unsigned int bitwidth;
	enum devlink_dpipe_field_mapping_type mapping_type;
};

/**
 * struct devlink_dpipe_header - dpipe header object
 * @name: header name
 * @id: index, global/local detrmined by global bit
 * @fields: fields
 * @fields_count: number of fields
 * @global: indicates if header is shared like most protocol header
 *	    or driver specific
 */
struct devlink_dpipe_header {
	const char *name;
	unsigned int id;
	struct devlink_dpipe_field *fields;
	unsigned int fields_count;
	bool global;
};

/**
 * struct devlink_dpipe_match - represents match operation
 * @type: type of match
 * @header_index: header index (packets can have several headers of same
 *		  type like in case of tunnels)
 * @header: header
 * @fieled_id: field index
 */
struct devlink_dpipe_match {
	enum devlink_dpipe_match_type type;
	unsigned int header_index;
	struct devlink_dpipe_header *header;
	unsigned int field_id;
};

/**
 * struct devlink_dpipe_action - represents action operation
 * @type: type of action
 * @header_index: header index (packets can have several headers of same
 *		  type like in case of tunnels)
 * @header: header
 * @fieled_id: field index
 */
struct devlink_dpipe_action {
	enum devlink_dpipe_action_type type;
	unsigned int header_index;
	struct devlink_dpipe_header *header;
	unsigned int field_id;
};

/**
 * struct devlink_dpipe_value - represents value of match/action
 * @action: action
 * @match: match
 * @mapping_value: in case the field has some mapping this value
 *                 specified the mapping value
 * @mapping_valid: specify if mapping value is valid
 * @value_size: value size
 * @value: value
 * @mask: bit mask
 */
struct devlink_dpipe_value {
	union {
		struct devlink_dpipe_action *action;
		struct devlink_dpipe_match *match;
	};
	unsigned int mapping_value;
	bool mapping_valid;
	unsigned int value_size;
	void *value;
	void *mask;
};

/**
 * struct devlink_dpipe_entry - table entry object
 * @index: index of the entry in the table
 * @match_values: match values
 * @matche_values_count: count of matches tuples
 * @action_values: actions values
 * @action_values_count: count of actions values
 * @counter: value of counter
 * @counter_valid: Specify if value is valid from hardware
 */
struct devlink_dpipe_entry {
	u64 index;
	struct devlink_dpipe_value *match_values;
	unsigned int match_values_count;
	struct devlink_dpipe_value *action_values;
	unsigned int action_values_count;
	u64 counter;
	bool counter_valid;
};

/**
 * struct devlink_dpipe_dump_ctx - context provided to driver in order
 *				   to dump
 * @info: info
 * @cmd: devlink command
 * @skb: skb
 * @nest: top attribute
 * @hdr: hdr
 */
struct devlink_dpipe_dump_ctx {
	struct genl_info *info;
	enum devlink_command cmd;
	struct sk_buff *skb;
	struct nlattr *nest;
	void *hdr;
};

struct devlink_dpipe_table_ops;

/**
 * struct devlink_dpipe_table - table object
 * @priv: private
 * @name: table name
 * @counters_enabled: indicates if counters are active
 * @counter_control_extern: indicates if counter control is in dpipe or
 *			    external tool
 * @resource_valid: Indicate that the resource id is valid
 * @resource_id: relative resource this table is related to
 * @resource_units: number of resource's unit consumed per table's entry
 * @table_ops: table operations
 * @rcu: rcu
 */
struct devlink_dpipe_table {
	void *priv;
	struct list_head list;
	const char *name;
	bool counters_enabled;
	bool counter_control_extern;
	bool resource_valid;
	u64 resource_id;
	u64 resource_units;
	struct devlink_dpipe_table_ops *table_ops;
	struct rcu_head rcu;
};

/**
 * struct devlink_dpipe_table_ops - dpipe_table ops
 * @actions_dump - dumps all tables actions
 * @matches_dump - dumps all tables matches
 * @entries_dump - dumps all active entries in the table
 * @counters_set_update - when changing the counter status hardware sync
 *			  maybe needed to allocate/free counter related
 *			  resources
 * @size_get - get size
 */
struct devlink_dpipe_table_ops {
	int (*actions_dump)(void *priv, struct sk_buff *skb);
	int (*matches_dump)(void *priv, struct sk_buff *skb);
	int (*entries_dump)(void *priv, bool counters_enabled,
			    struct devlink_dpipe_dump_ctx *dump_ctx);
	int (*counters_set_update)(void *priv, bool enable);
	u64 (*size_get)(void *priv);
};

/**
 * struct devlink_dpipe_headers - dpipe headers
 * @headers - header array can be shared (global bit) or driver specific
 * @headers_count - count of headers
 */
struct devlink_dpipe_headers {
	struct devlink_dpipe_header **headers;
	unsigned int headers_count;
};

/**
 * struct devlink_resource_size_params - resource's size parameters
 * @size_min: minimum size which can be set
 * @size_max: maximum size which can be set
 * @size_granularity: size granularity
 * @size_unit: resource's basic unit
 */
struct devlink_resource_size_params {
	u64 size_min;
	u64 size_max;
	u64 size_granularity;
	enum devlink_resource_unit unit;
};

static inline void
devlink_resource_size_params_init(struct devlink_resource_size_params *size_params,
				  u64 size_min, u64 size_max,
				  u64 size_granularity,
				  enum devlink_resource_unit unit)
{
	size_params->size_min = size_min;
	size_params->size_max = size_max;
	size_params->size_granularity = size_granularity;
	size_params->unit = unit;
}

typedef u64 devlink_resource_occ_get_t(void *priv);

/**
 * struct devlink_resource - devlink resource
 * @name: name of the resource
 * @id: id, per devlink instance
 * @size: size of the resource
 * @size_new: updated size of the resource, reload is needed
 * @size_valid: valid in case the total size of the resource is valid
 *              including its children
 * @parent: parent resource
 * @size_params: size parameters
 * @list: parent list
 * @resource_list: list of child resources
 */
struct devlink_resource {
	const char *name;
	u64 id;
	u64 size;
	u64 size_new;
	bool size_valid;
	struct devlink_resource *parent;
	struct devlink_resource_size_params size_params;
	struct list_head list;
	struct list_head resource_list;
	devlink_resource_occ_get_t *occ_get;
	void *occ_get_priv;
};

#define DEVLINK_RESOURCE_ID_PARENT_TOP 0

#define __DEVLINK_PARAM_MAX_STRING_VALUE 32
enum devlink_param_type {
	DEVLINK_PARAM_TYPE_U8,
	DEVLINK_PARAM_TYPE_U16,
	DEVLINK_PARAM_TYPE_U32,
	DEVLINK_PARAM_TYPE_STRING,
	DEVLINK_PARAM_TYPE_BOOL,
};

union devlink_param_value {
	u8 vu8;
	u16 vu16;
	u32 vu32;
	char vstr[__DEVLINK_PARAM_MAX_STRING_VALUE];
	bool vbool;
};

struct devlink_param_gset_ctx {
	union devlink_param_value val;
	enum devlink_param_cmode cmode;
};

/**
 * struct devlink_param - devlink configuration parameter data
 * @name: name of the parameter
 * @generic: indicates if the parameter is generic or driver specific
 * @type: parameter type
 * @supported_cmodes: bitmap of supported configuration modes
 * @get: get parameter value, used for runtime and permanent
 *       configuration modes
 * @set: set parameter value, used for runtime and permanent
 *       configuration modes
 * @validate: validate input value is applicable (within value range, etc.)
 *
 * This struct should be used by the driver to fill the data for
 * a parameter it registers.
 */
struct devlink_param {
	u32 id;
	const char *name;
	bool generic;
	enum devlink_param_type type;
	unsigned long supported_cmodes;
	int (*get)(struct devlink *devlink, u32 id,
		   struct devlink_param_gset_ctx *ctx);
	int (*set)(struct devlink *devlink, u32 id,
		   struct devlink_param_gset_ctx *ctx);
	int (*validate)(struct devlink *devlink, u32 id,
			union devlink_param_value val,
			struct netlink_ext_ack *extack);
};

struct devlink_param_item {
	struct list_head list;
	const struct devlink_param *param;
	union devlink_param_value driverinit_value;
	bool driverinit_value_valid;
	bool published;
};

enum devlink_param_generic_id {
	DEVLINK_PARAM_GENERIC_ID_INT_ERR_RESET,
	DEVLINK_PARAM_GENERIC_ID_MAX_MACS,
	DEVLINK_PARAM_GENERIC_ID_ENABLE_SRIOV,
	DEVLINK_PARAM_GENERIC_ID_REGION_SNAPSHOT,
	DEVLINK_PARAM_GENERIC_ID_IGNORE_ARI,
	DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX,
	DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN,
	DEVLINK_PARAM_GENERIC_ID_FW_LOAD_POLICY,
	DEVLINK_PARAM_GENERIC_ID_RESET_DEV_ON_DRV_PROBE,

	/* add new param generic ids above here*/
	__DEVLINK_PARAM_GENERIC_ID_MAX,
	DEVLINK_PARAM_GENERIC_ID_MAX = __DEVLINK_PARAM_GENERIC_ID_MAX - 1,
};

#define DEVLINK_PARAM_GENERIC_INT_ERR_RESET_NAME "internal_error_reset"
#define DEVLINK_PARAM_GENERIC_INT_ERR_RESET_TYPE DEVLINK_PARAM_TYPE_BOOL

#define DEVLINK_PARAM_GENERIC_MAX_MACS_NAME "max_macs"
#define DEVLINK_PARAM_GENERIC_MAX_MACS_TYPE DEVLINK_PARAM_TYPE_U32

#define DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_NAME "enable_sriov"
#define DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_TYPE DEVLINK_PARAM_TYPE_BOOL

#define DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_NAME "region_snapshot_enable"
#define DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_TYPE DEVLINK_PARAM_TYPE_BOOL

#define DEVLINK_PARAM_GENERIC_IGNORE_ARI_NAME "ignore_ari"
#define DEVLINK_PARAM_GENERIC_IGNORE_ARI_TYPE DEVLINK_PARAM_TYPE_BOOL

#define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MAX_NAME "msix_vec_per_pf_max"
#define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MAX_TYPE DEVLINK_PARAM_TYPE_U32

#define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_NAME "msix_vec_per_pf_min"
#define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_TYPE DEVLINK_PARAM_TYPE_U32

#define DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_NAME "fw_load_policy"
#define DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_TYPE DEVLINK_PARAM_TYPE_U8

#define DEVLINK_PARAM_GENERIC_RESET_DEV_ON_DRV_PROBE_NAME \
	"reset_dev_on_drv_probe"
#define DEVLINK_PARAM_GENERIC_RESET_DEV_ON_DRV_PROBE_TYPE DEVLINK_PARAM_TYPE_U8

#define DEVLINK_PARAM_GENERIC(_id, _cmodes, _get, _set, _validate)	\
{									\
	.id = DEVLINK_PARAM_GENERIC_ID_##_id,				\
	.name = DEVLINK_PARAM_GENERIC_##_id##_NAME,			\
	.type = DEVLINK_PARAM_GENERIC_##_id##_TYPE,			\
	.generic = true,						\
	.supported_cmodes = _cmodes,					\
	.get = _get,							\
	.set = _set,							\
	.validate = _validate,						\
}

#define DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes, _get, _set, _validate)	\
{									\
	.id = _id,							\
	.name = _name,							\
	.type = _type,							\
	.supported_cmodes = _cmodes,					\
	.get = _get,							\
	.set = _set,							\
	.validate = _validate,						\
}

/* Part number, identifier of board design */
#define DEVLINK_INFO_VERSION_GENERIC_BOARD_ID	"board.id"
/* Revision of board design */
#define DEVLINK_INFO_VERSION_GENERIC_BOARD_REV	"board.rev"
/* Maker of the board */
#define DEVLINK_INFO_VERSION_GENERIC_BOARD_MANUFACTURE	"board.manufacture"

/* Part number, identifier of asic design */
#define DEVLINK_INFO_VERSION_GENERIC_ASIC_ID	"asic.id"
/* Revision of asic design */
#define DEVLINK_INFO_VERSION_GENERIC_ASIC_REV	"asic.rev"

/* Overall FW version */
#define DEVLINK_INFO_VERSION_GENERIC_FW		"fw"
/* Control processor FW version */
#define DEVLINK_INFO_VERSION_GENERIC_FW_MGMT	"fw.mgmt"
/* Data path microcode controlling high-speed packet processing */
#define DEVLINK_INFO_VERSION_GENERIC_FW_APP	"fw.app"
/* UNDI software version */
#define DEVLINK_INFO_VERSION_GENERIC_FW_UNDI	"fw.undi"
/* NCSI support/handler version */
#define DEVLINK_INFO_VERSION_GENERIC_FW_NCSI	"fw.ncsi"

struct devlink_region;
struct devlink_info_req;

typedef void devlink_snapshot_data_dest_t(const void *data);

struct devlink_fmsg;
struct devlink_health_reporter;

enum devlink_health_reporter_state {
	DEVLINK_HEALTH_REPORTER_STATE_HEALTHY,
	DEVLINK_HEALTH_REPORTER_STATE_ERROR,
};

/**
 * struct devlink_health_reporter_ops - Reporter operations
 * @name: reporter name
 * @recover: callback to recover from reported error
 *           if priv_ctx is NULL, run a full recover
 * @dump: callback to dump an object
 *        if priv_ctx is NULL, run a full dump
 * @diagnose: callback to diagnose the current status
 */

struct devlink_health_reporter_ops {
	char *name;
	int (*recover)(struct devlink_health_reporter *reporter,
		       void *priv_ctx);
	int (*dump)(struct devlink_health_reporter *reporter,
		    struct devlink_fmsg *fmsg, void *priv_ctx);
	int (*diagnose)(struct devlink_health_reporter *reporter,
			struct devlink_fmsg *fmsg);
};

/**
 * struct devlink_trap_group - Immutable packet trap group attributes.
 * @name: Trap group name.
 * @id: Trap group identifier.
 * @generic: Whether the trap group is generic or not.
 *
 * Describes immutable attributes of packet trap groups that drivers register
 * with devlink.
 */
struct devlink_trap_group {
	const char *name;
	u16 id;
	bool generic;
};

#define DEVLINK_TRAP_METADATA_TYPE_F_IN_PORT	BIT(0)

/**
 * struct devlink_trap - Immutable packet trap attributes.
 * @type: Trap type.
 * @init_action: Initial trap action.
 * @generic: Whether the trap is generic or not.
 * @id: Trap identifier.
 * @name: Trap name.
 * @group: Immutable packet trap group attributes.
 * @metadata_cap: Metadata types that can be provided by the trap.
 *
 * Describes immutable attributes of packet traps that drivers register with
 * devlink.
 */
struct devlink_trap {
	enum devlink_trap_type type;
	enum devlink_trap_action init_action;
	bool generic;
	u16 id;
	const char *name;
	struct devlink_trap_group group;
	u32 metadata_cap;
};

/* All traps must be documented in
 * Documentation/networking/devlink-trap.rst
 */
enum devlink_trap_generic_id {
	DEVLINK_TRAP_GENERIC_ID_SMAC_MC,
	DEVLINK_TRAP_GENERIC_ID_VLAN_TAG_MISMATCH,
	DEVLINK_TRAP_GENERIC_ID_INGRESS_VLAN_FILTER,
	DEVLINK_TRAP_GENERIC_ID_INGRESS_STP_FILTER,
	DEVLINK_TRAP_GENERIC_ID_EMPTY_TX_LIST,
	DEVLINK_TRAP_GENERIC_ID_PORT_LOOPBACK_FILTER,
	DEVLINK_TRAP_GENERIC_ID_BLACKHOLE_ROUTE,
	DEVLINK_TRAP_GENERIC_ID_TTL_ERROR,
	DEVLINK_TRAP_GENERIC_ID_TAIL_DROP,

	/* Add new generic trap IDs above */
	__DEVLINK_TRAP_GENERIC_ID_MAX,
	DEVLINK_TRAP_GENERIC_ID_MAX = __DEVLINK_TRAP_GENERIC_ID_MAX - 1,
};

/* All trap groups must be documented in
 * Documentation/networking/devlink-trap.rst
 */
enum devlink_trap_group_generic_id {
	DEVLINK_TRAP_GROUP_GENERIC_ID_L2_DROPS,
	DEVLINK_TRAP_GROUP_GENERIC_ID_L3_DROPS,
	DEVLINK_TRAP_GROUP_GENERIC_ID_BUFFER_DROPS,

	/* Add new generic trap group IDs above */
	__DEVLINK_TRAP_GROUP_GENERIC_ID_MAX,
	DEVLINK_TRAP_GROUP_GENERIC_ID_MAX =
		__DEVLINK_TRAP_GROUP_GENERIC_ID_MAX - 1,
};

#define DEVLINK_TRAP_GENERIC_NAME_SMAC_MC \
	"source_mac_is_multicast"
#define DEVLINK_TRAP_GENERIC_NAME_VLAN_TAG_MISMATCH \
	"vlan_tag_mismatch"
#define DEVLINK_TRAP_GENERIC_NAME_INGRESS_VLAN_FILTER \
	"ingress_vlan_filter"
#define DEVLINK_TRAP_GENERIC_NAME_INGRESS_STP_FILTER \
	"ingress_spanning_tree_filter"
#define DEVLINK_TRAP_GENERIC_NAME_EMPTY_TX_LIST \
	"port_list_is_empty"
#define DEVLINK_TRAP_GENERIC_NAME_PORT_LOOPBACK_FILTER \
	"port_loopback_filter"
#define DEVLINK_TRAP_GENERIC_NAME_BLACKHOLE_ROUTE \
	"blackhole_route"
#define DEVLINK_TRAP_GENERIC_NAME_TTL_ERROR \
	"ttl_value_is_too_small"
#define DEVLINK_TRAP_GENERIC_NAME_TAIL_DROP \
	"tail_drop"

#define DEVLINK_TRAP_GROUP_GENERIC_NAME_L2_DROPS \
	"l2_drops"
#define DEVLINK_TRAP_GROUP_GENERIC_NAME_L3_DROPS \
	"l3_drops"
#define DEVLINK_TRAP_GROUP_GENERIC_NAME_BUFFER_DROPS \
	"buffer_drops"

#define DEVLINK_TRAP_GENERIC(_type, _init_action, _id, _group, _metadata_cap) \
	{								      \
		.type = DEVLINK_TRAP_TYPE_##_type,			      \
		.init_action = DEVLINK_TRAP_ACTION_##_init_action,	      \
		.generic = true,					      \
		.id = DEVLINK_TRAP_GENERIC_ID_##_id,			      \
		.name = DEVLINK_TRAP_GENERIC_NAME_##_id,		      \
		.group = _group,					      \
		.metadata_cap = _metadata_cap,				      \
	}

#define DEVLINK_TRAP_DRIVER(_type, _init_action, _id, _name, _group,	      \
			    _metadata_cap)				      \
	{								      \
		.type = DEVLINK_TRAP_TYPE_##_type,			      \
		.init_action = DEVLINK_TRAP_ACTION_##_init_action,	      \
		.generic = false,					      \
		.id = _id,						      \
		.name = _name,						      \
		.group = _group,					      \
		.metadata_cap = _metadata_cap,				      \
	}

#define DEVLINK_TRAP_GROUP_GENERIC(_id)					      \
	{								      \
		.name = DEVLINK_TRAP_GROUP_GENERIC_NAME_##_id,		      \
		.id = DEVLINK_TRAP_GROUP_GENERIC_ID_##_id,		      \
		.generic = true,					      \
	}

struct devlink_ops {
	int (*reload_down)(struct devlink *devlink,
			   struct netlink_ext_ack *extack);
	int (*reload_up)(struct devlink *devlink,
			 struct netlink_ext_ack *extack);
	int (*port_type_set)(struct devlink_port *devlink_port,
			     enum devlink_port_type port_type);
	int (*port_split)(struct devlink *devlink, unsigned int port_index,
			  unsigned int count, struct netlink_ext_ack *extack);
	int (*port_unsplit)(struct devlink *devlink, unsigned int port_index,
			    struct netlink_ext_ack *extack);
	int (*sb_pool_get)(struct devlink *devlink, unsigned int sb_index,
			   u16 pool_index,
			   struct devlink_sb_pool_info *pool_info);
	int (*sb_pool_set)(struct devlink *devlink, unsigned int sb_index,
			   u16 pool_index, u32 size,
			   enum devlink_sb_threshold_type threshold_type,
			   struct netlink_ext_ack *extack);
	int (*sb_port_pool_get)(struct devlink_port *devlink_port,
				unsigned int sb_index, u16 pool_index,
				u32 *p_threshold);
	int (*sb_port_pool_set)(struct devlink_port *devlink_port,
				unsigned int sb_index, u16 pool_index,
				u32 threshold, struct netlink_ext_ack *extack);
	int (*sb_tc_pool_bind_get)(struct devlink_port *devlink_port,
				   unsigned int sb_index,
				   u16 tc_index,
				   enum devlink_sb_pool_type pool_type,
				   u16 *p_pool_index, u32 *p_threshold);
	int (*sb_tc_pool_bind_set)(struct devlink_port *devlink_port,
				   unsigned int sb_index,
				   u16 tc_index,
				   enum devlink_sb_pool_type pool_type,
				   u16 pool_index, u32 threshold,
				   struct netlink_ext_ack *extack);
	int (*sb_occ_snapshot)(struct devlink *devlink,
			       unsigned int sb_index);
	int (*sb_occ_max_clear)(struct devlink *devlink,
				unsigned int sb_index);
	int (*sb_occ_port_pool_get)(struct devlink_port *devlink_port,
				    unsigned int sb_index, u16 pool_index,
				    u32 *p_cur, u32 *p_max);
	int (*sb_occ_tc_port_bind_get)(struct devlink_port *devlink_port,
				       unsigned int sb_index,
				       u16 tc_index,
				       enum devlink_sb_pool_type pool_type,
				       u32 *p_cur, u32 *p_max);

	int (*eswitch_mode_get)(struct devlink *devlink, u16 *p_mode);
	int (*eswitch_mode_set)(struct devlink *devlink, u16 mode,
				struct netlink_ext_ack *extack);
	int (*eswitch_inline_mode_get)(struct devlink *devlink, u8 *p_inline_mode);
	int (*eswitch_inline_mode_set)(struct devlink *devlink, u8 inline_mode,
				       struct netlink_ext_ack *extack);
	int (*eswitch_encap_mode_get)(struct devlink *devlink,
				      enum devlink_eswitch_encap_mode *p_encap_mode);
	int (*eswitch_encap_mode_set)(struct devlink *devlink,
				      enum devlink_eswitch_encap_mode encap_mode,
				      struct netlink_ext_ack *extack);
	int (*info_get)(struct devlink *devlink, struct devlink_info_req *req,
			struct netlink_ext_ack *extack);
	int (*flash_update)(struct devlink *devlink, const char *file_name,
			    const char *component,
			    struct netlink_ext_ack *extack);
	/**
	 * @trap_init: Trap initialization function.
	 *
	 * Should be used by device drivers to initialize the trap in the
	 * underlying device. Drivers should also store the provided trap
	 * context, so that they could efficiently pass it to
	 * devlink_trap_report() when the trap is triggered.
	 */
	int (*trap_init)(struct devlink *devlink,
			 const struct devlink_trap *trap, void *trap_ctx);
	/**
	 * @trap_fini: Trap de-initialization function.
	 *
	 * Should be used by device drivers to de-initialize the trap in the
	 * underlying device.
	 */
	void (*trap_fini)(struct devlink *devlink,
			  const struct devlink_trap *trap, void *trap_ctx);
	/**
	 * @trap_action_set: Trap action set function.
	 */
	int (*trap_action_set)(struct devlink *devlink,
			       const struct devlink_trap *trap,
			       enum devlink_trap_action action);
	/**
	 * @trap_group_init: Trap group initialization function.
	 *
	 * Should be used by device drivers to initialize the trap group in the
	 * underlying device.
	 */
	int (*trap_group_init)(struct devlink *devlink,
			       const struct devlink_trap_group *group);
};

static inline void *devlink_priv(struct devlink *devlink)
{
	BUG_ON(!devlink);
	return &devlink->priv;
}

static inline struct devlink *priv_to_devlink(void *priv)
{
	BUG_ON(!priv);
	return container_of(priv, struct devlink, priv);
}

static inline struct devlink_port *
netdev_to_devlink_port(struct net_device *dev)
{
	if (dev->netdev_ops->ndo_get_devlink_port)
		return dev->netdev_ops->ndo_get_devlink_port(dev);
	return NULL;
}

static inline struct devlink *netdev_to_devlink(struct net_device *dev)
{
	struct devlink_port *devlink_port = netdev_to_devlink_port(dev);

	if (devlink_port)
		return devlink_port->devlink;
	return NULL;
}

struct ib_device;

struct devlink *devlink_alloc(const struct devlink_ops *ops, size_t priv_size);
int devlink_register(struct devlink *devlink, struct device *dev);
void devlink_unregister(struct devlink *devlink);
void devlink_reload_enable(struct devlink *devlink);
void devlink_reload_disable(struct devlink *devlink);
void devlink_free(struct devlink *devlink);
int devlink_port_register(struct devlink *devlink,
			  struct devlink_port *devlink_port,
			  unsigned int port_index);
void devlink_port_unregister(struct devlink_port *devlink_port);
void devlink_port_type_eth_set(struct devlink_port *devlink_port,
			       struct net_device *netdev);
void devlink_port_type_ib_set(struct devlink_port *devlink_port,
			      struct ib_device *ibdev);
void devlink_port_type_clear(struct devlink_port *devlink_port);
void devlink_port_attrs_set(struct devlink_port *devlink_port,
			    enum devlink_port_flavour flavour,
			    u32 port_number, bool split,
			    u32 split_subport_number,
			    const unsigned char *switch_id,
			    unsigned char switch_id_len);
void devlink_port_attrs_pci_pf_set(struct devlink_port *devlink_port,
				   const unsigned char *switch_id,
				   unsigned char switch_id_len, u16 pf);
void devlink_port_attrs_pci_vf_set(struct devlink_port *devlink_port,
				   const unsigned char *switch_id,
				   unsigned char switch_id_len,
				   u16 pf, u16 vf);
int devlink_sb_register(struct devlink *devlink, unsigned int sb_index,
			u32 size, u16 ingress_pools_count,
			u16 egress_pools_count, u16 ingress_tc_count,
			u16 egress_tc_count);
void devlink_sb_unregister(struct devlink *devlink, unsigned int sb_index);
int devlink_dpipe_table_register(struct devlink *devlink,
				 const char *table_name,
				 struct devlink_dpipe_table_ops *table_ops,
				 void *priv, bool counter_control_extern);
void devlink_dpipe_table_unregister(struct devlink *devlink,
				    const char *table_name);
int devlink_dpipe_headers_register(struct devlink *devlink,
				   struct devlink_dpipe_headers *dpipe_headers);
void devlink_dpipe_headers_unregister(struct devlink *devlink);
bool devlink_dpipe_table_counter_enabled(struct devlink *devlink,
					 const char *table_name);
int devlink_dpipe_entry_ctx_prepare(struct devlink_dpipe_dump_ctx *dump_ctx);
int devlink_dpipe_entry_ctx_append(struct devlink_dpipe_dump_ctx *dump_ctx,
				   struct devlink_dpipe_entry *entry);
int devlink_dpipe_entry_ctx_close(struct devlink_dpipe_dump_ctx *dump_ctx);
void devlink_dpipe_entry_clear(struct devlink_dpipe_entry *entry);
int devlink_dpipe_action_put(struct sk_buff *skb,
			     struct devlink_dpipe_action *action);
int devlink_dpipe_match_put(struct sk_buff *skb,
			    struct devlink_dpipe_match *match);
extern struct devlink_dpipe_header devlink_dpipe_header_ethernet;
extern struct devlink_dpipe_header devlink_dpipe_header_ipv4;
extern struct devlink_dpipe_header devlink_dpipe_header_ipv6;

int devlink_resource_register(struct devlink *devlink,
			      const char *resource_name,
			      u64 resource_size,
			      u64 resource_id,
			      u64 parent_resource_id,
			      const struct devlink_resource_size_params *size_params);
void devlink_resources_unregister(struct devlink *devlink,
				  struct devlink_resource *resource);
int devlink_resource_size_get(struct devlink *devlink,
			      u64 resource_id,
			      u64 *p_resource_size);
int devlink_dpipe_table_resource_set(struct devlink *devlink,
				     const char *table_name, u64 resource_id,
				     u64 resource_units);
void devlink_resource_occ_get_register(struct devlink *devlink,
				       u64 resource_id,
				       devlink_resource_occ_get_t *occ_get,
				       void *occ_get_priv);
void devlink_resource_occ_get_unregister(struct devlink *devlink,
					 u64 resource_id);
int devlink_params_register(struct devlink *devlink,
			    const struct devlink_param *params,
			    size_t params_count);
void devlink_params_unregister(struct devlink *devlink,
			       const struct devlink_param *params,
			       size_t params_count);
void devlink_params_publish(struct devlink *devlink);
void devlink_params_unpublish(struct devlink *devlink);
int devlink_port_params_register(struct devlink_port *devlink_port,
				 const struct devlink_param *params,
				 size_t params_count);
void devlink_port_params_unregister(struct devlink_port *devlink_port,
				    const struct devlink_param *params,
				    size_t params_count);
int devlink_param_driverinit_value_get(struct devlink *devlink, u32 param_id,
				       union devlink_param_value *init_val);
int devlink_param_driverinit_value_set(struct devlink *devlink, u32 param_id,
				       union devlink_param_value init_val);
int
devlink_port_param_driverinit_value_get(struct devlink_port *devlink_port,
					u32 param_id,
					union devlink_param_value *init_val);
int devlink_port_param_driverinit_value_set(struct devlink_port *devlink_port,
					    u32 param_id,
					    union devlink_param_value init_val);
void devlink_param_value_changed(struct devlink *devlink, u32 param_id);
void devlink_port_param_value_changed(struct devlink_port *devlink_port,
				      u32 param_id);
void devlink_param_value_str_fill(union devlink_param_value *dst_val,
				  const char *src);
struct devlink_region *devlink_region_create(struct devlink *devlink,
					     const char *region_name,
					     u32 region_max_snapshots,
					     u64 region_size);
void devlink_region_destroy(struct devlink_region *region);
u32 devlink_region_shapshot_id_get(struct devlink *devlink);
int devlink_region_snapshot_create(struct devlink_region *region,
				   u8 *data, u32 snapshot_id,
				   devlink_snapshot_data_dest_t *data_destructor);
int devlink_info_serial_number_put(struct devlink_info_req *req,
				   const char *sn);
int devlink_info_driver_name_put(struct devlink_info_req *req,
				 const char *name);
int devlink_info_version_fixed_put(struct devlink_info_req *req,
				   const char *version_name,
				   const char *version_value);
int devlink_info_version_stored_put(struct devlink_info_req *req,
				    const char *version_name,
				    const char *version_value);
int devlink_info_version_running_put(struct devlink_info_req *req,
				     const char *version_name,
				     const char *version_value);

int devlink_fmsg_obj_nest_start(struct devlink_fmsg *fmsg);
int devlink_fmsg_obj_nest_end(struct devlink_fmsg *fmsg);

int devlink_fmsg_pair_nest_start(struct devlink_fmsg *fmsg, const char *name);
int devlink_fmsg_pair_nest_end(struct devlink_fmsg *fmsg);

int devlink_fmsg_arr_pair_nest_start(struct devlink_fmsg *fmsg,
				     const char *name);
int devlink_fmsg_arr_pair_nest_end(struct devlink_fmsg *fmsg);

int devlink_fmsg_bool_put(struct devlink_fmsg *fmsg, bool value);
int devlink_fmsg_u8_put(struct devlink_fmsg *fmsg, u8 value);
int devlink_fmsg_u32_put(struct devlink_fmsg *fmsg, u32 value);
int devlink_fmsg_u64_put(struct devlink_fmsg *fmsg, u64 value);
int devlink_fmsg_string_put(struct devlink_fmsg *fmsg, const char *value);
int devlink_fmsg_binary_put(struct devlink_fmsg *fmsg, const void *value,
			    u16 value_len);

int devlink_fmsg_bool_pair_put(struct devlink_fmsg *fmsg, const char *name,
			       bool value);
int devlink_fmsg_u8_pair_put(struct devlink_fmsg *fmsg, const char *name,
			     u8 value);
int devlink_fmsg_u32_pair_put(struct devlink_fmsg *fmsg, const char *name,
			      u32 value);
int devlink_fmsg_u64_pair_put(struct devlink_fmsg *fmsg, const char *name,
			      u64 value);
int devlink_fmsg_string_pair_put(struct devlink_fmsg *fmsg, const char *name,
				 const char *value);
int devlink_fmsg_binary_pair_put(struct devlink_fmsg *fmsg, const char *name,
				 const void *value, u16 value_len);

struct devlink_health_reporter *
devlink_health_reporter_create(struct devlink *devlink,
			       const struct devlink_health_reporter_ops *ops,
			       u64 graceful_period, bool auto_recover,
			       void *priv);
void
devlink_health_reporter_destroy(struct devlink_health_reporter *reporter);

void *
devlink_health_reporter_priv(struct devlink_health_reporter *reporter);
int devlink_health_report(struct devlink_health_reporter *reporter,
			  const char *msg, void *priv_ctx);
void
devlink_health_reporter_state_update(struct devlink_health_reporter *reporter,
				     enum devlink_health_reporter_state state);

bool devlink_is_reload_failed(const struct devlink *devlink);

void devlink_flash_update_begin_notify(struct devlink *devlink);
void devlink_flash_update_end_notify(struct devlink *devlink);
void devlink_flash_update_status_notify(struct devlink *devlink,
					const char *status_msg,
					const char *component,
					unsigned long done,
					unsigned long total);

int devlink_traps_register(struct devlink *devlink,
			   const struct devlink_trap *traps,
			   size_t traps_count, void *priv);
void devlink_traps_unregister(struct devlink *devlink,
			      const struct devlink_trap *traps,
			      size_t traps_count);
void devlink_trap_report(struct devlink *devlink,
			 struct sk_buff *skb, void *trap_ctx,
			 struct devlink_port *in_devlink_port);
void *devlink_trap_ctx_priv(void *trap_ctx);

#if IS_ENABLED(CONFIG_NET_DEVLINK)

void devlink_compat_running_version(struct net_device *dev,
				    char *buf, size_t len);
int devlink_compat_flash_update(struct net_device *dev, const char *file_name);
int devlink_compat_phys_port_name_get(struct net_device *dev,
				      char *name, size_t len);
int devlink_compat_switch_id_get(struct net_device *dev,
				 struct netdev_phys_item_id *ppid);

#else

static inline void
devlink_compat_running_version(struct net_device *dev, char *buf, size_t len)
{
}

static inline int
devlink_compat_flash_update(struct net_device *dev, const char *file_name)
{
	return -EOPNOTSUPP;
}

static inline int
devlink_compat_phys_port_name_get(struct net_device *dev,
				  char *name, size_t len)
{
	return -EOPNOTSUPP;
}

static inline int
devlink_compat_switch_id_get(struct net_device *dev,
			     struct netdev_phys_item_id *ppid)
{
	return -EOPNOTSUPP;
}

#endif

#endif /* _NET_DEVLINK_H_ */