1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3  * include/net/devlink.h - Network physical device Netlink interface
4  * Copyright (c) 2016 Mellanox Technologies. All rights reserved.
5  * Copyright (c) 2016 Jiri Pirko <jiri@mellanox.com>
6  */
7 #ifndef _NET_DEVLINK_H_
8 #define _NET_DEVLINK_H_
9 
10 #include <linux/device.h>
11 #include <linux/slab.h>
12 #include <linux/gfp.h>
13 #include <linux/list.h>
14 #include <linux/netdevice.h>
15 #include <linux/spinlock.h>
16 #include <linux/workqueue.h>
17 #include <linux/refcount.h>
18 #include <net/net_namespace.h>
19 #include <net/flow_offload.h>
20 #include <uapi/linux/devlink.h>
21 #include <linux/xarray.h>
22 #include <linux/firmware.h>
23 
24 struct devlink;
25 struct devlink_linecard;
26 
27 struct devlink_port_phys_attrs {
28 	u32 port_number; /* Same value as "split group".
29 			  * A physical port which is visible to the user
30 			  * for a given port flavour.
31 			  */
32 	u32 split_subport_number; /* If the port is split, this is the number of subport. */
33 };
34 
35 /**
36  * struct devlink_port_pci_pf_attrs - devlink port's PCI PF attributes
37  * @controller: Associated controller number
38  * @pf: Associated PCI PF number for this port.
39  * @external: when set, indicates if a port is for an external controller
40  */
41 struct devlink_port_pci_pf_attrs {
42 	u32 controller;
43 	u16 pf;
44 	u8 external:1;
45 };
46 
47 /**
48  * struct devlink_port_pci_vf_attrs - devlink port's PCI VF attributes
49  * @controller: Associated controller number
50  * @pf: Associated PCI PF number for this port.
51  * @vf: Associated PCI VF for of the PCI PF for this port.
52  * @external: when set, indicates if a port is for an external controller
53  */
54 struct devlink_port_pci_vf_attrs {
55 	u32 controller;
56 	u16 pf;
57 	u16 vf;
58 	u8 external:1;
59 };
60 
61 /**
62  * struct devlink_port_pci_sf_attrs - devlink port's PCI SF attributes
63  * @controller: Associated controller number
64  * @sf: Associated PCI SF for of the PCI PF for this port.
65  * @pf: Associated PCI PF number for this port.
66  * @external: when set, indicates if a port is for an external controller
67  */
68 struct devlink_port_pci_sf_attrs {
69 	u32 controller;
70 	u32 sf;
71 	u16 pf;
72 	u8 external:1;
73 };
74 
75 /**
76  * struct devlink_port_attrs - devlink port object
77  * @flavour: flavour of the port
78  * @split: indicates if this is split port
79  * @splittable: indicates if the port can be split.
80  * @lanes: maximum number of lanes the port supports. 0 value is not passed to netlink.
81  * @switch_id: if the port is part of switch, this is buffer with ID, otherwise this is NULL
82  * @phys: physical port attributes
83  * @pci_pf: PCI PF port attributes
84  * @pci_vf: PCI VF port attributes
85  * @pci_sf: PCI SF port attributes
86  */
87 struct devlink_port_attrs {
88 	u8 split:1,
89 	   splittable:1;
90 	u32 lanes;
91 	enum devlink_port_flavour flavour;
92 	struct netdev_phys_item_id switch_id;
93 	union {
94 		struct devlink_port_phys_attrs phys;
95 		struct devlink_port_pci_pf_attrs pci_pf;
96 		struct devlink_port_pci_vf_attrs pci_vf;
97 		struct devlink_port_pci_sf_attrs pci_sf;
98 	};
99 };
100 
101 struct devlink_rate {
102 	struct list_head list;
103 	enum devlink_rate_type type;
104 	struct devlink *devlink;
105 	void *priv;
106 	u64 tx_share;
107 	u64 tx_max;
108 
109 	struct devlink_rate *parent;
110 	union {
111 		struct devlink_port *devlink_port;
112 		struct {
113 			char *name;
114 			refcount_t refcnt;
115 		};
116 	};
117 
118 	u32 tx_priority;
119 	u32 tx_weight;
120 };
121 
122 struct devlink_port {
123 	struct list_head list;
124 	struct list_head region_list;
125 	struct devlink *devlink;
126 	const struct devlink_port_ops *ops;
127 	unsigned int index;
128 	spinlock_t type_lock; /* Protects type and type_eth/ib
129 			       * structures consistency.
130 			       */
131 	enum devlink_port_type type;
132 	enum devlink_port_type desired_type;
133 	union {
134 		struct {
135 			struct net_device *netdev;
136 			int ifindex;
137 			char ifname[IFNAMSIZ];
138 		} type_eth;
139 		struct {
140 			struct ib_device *ibdev;
141 		} type_ib;
142 	};
143 	struct devlink_port_attrs attrs;
144 	u8 attrs_set:1,
145 	   switch_port:1,
146 	   registered:1,
147 	   initialized:1;
148 	struct delayed_work type_warn_dw;
149 	struct list_head reporter_list;
150 
151 	struct devlink_rate *devlink_rate;
152 	struct devlink_linecard *linecard;
153 };
154 
155 struct devlink_port_new_attrs {
156 	enum devlink_port_flavour flavour;
157 	unsigned int port_index;
158 	u32 controller;
159 	u32 sfnum;
160 	u16 pfnum;
161 	u8 port_index_valid:1,
162 	   controller_valid:1,
163 	   sfnum_valid:1;
164 };
165 
166 /**
167  * struct devlink_linecard_ops - Linecard operations
168  * @provision: callback to provision the linecard slot with certain
169  *	       type of linecard. As a result of this operation,
170  *	       driver is expected to eventually (could be after
171  *	       the function call returns) call one of:
172  *	       devlink_linecard_provision_set()
173  *	       devlink_linecard_provision_fail()
174  * @unprovision: callback to unprovision the linecard slot. As a result
175  *		 of this operation, driver is expected to eventually
176  *		 (could be after the function call returns) call
177  *	         devlink_linecard_provision_clear()
178  *	         devlink_linecard_provision_fail()
179  * @same_provision: callback to ask the driver if linecard is already
180  *                  provisioned in the same way user asks this linecard to be
181  *                  provisioned.
182  * @types_count: callback to get number of supported types
183  * @types_get: callback to get next type in list
184  */
185 struct devlink_linecard_ops {
186 	int (*provision)(struct devlink_linecard *linecard, void *priv,
187 			 const char *type, const void *type_priv,
188 			 struct netlink_ext_ack *extack);
189 	int (*unprovision)(struct devlink_linecard *linecard, void *priv,
190 			   struct netlink_ext_ack *extack);
191 	bool (*same_provision)(struct devlink_linecard *linecard, void *priv,
192 			       const char *type, const void *type_priv);
193 	unsigned int (*types_count)(struct devlink_linecard *linecard,
194 				    void *priv);
195 	void (*types_get)(struct devlink_linecard *linecard,
196 			  void *priv, unsigned int index, const char **type,
197 			  const void **type_priv);
198 };
199 
200 struct devlink_sb_pool_info {
201 	enum devlink_sb_pool_type pool_type;
202 	u32 size;
203 	enum devlink_sb_threshold_type threshold_type;
204 	u32 cell_size;
205 };
206 
207 /**
208  * struct devlink_dpipe_field - dpipe field object
209  * @name: field name
210  * @id: index inside the headers field array
211  * @bitwidth: bitwidth
212  * @mapping_type: mapping type
213  */
214 struct devlink_dpipe_field {
215 	const char *name;
216 	unsigned int id;
217 	unsigned int bitwidth;
218 	enum devlink_dpipe_field_mapping_type mapping_type;
219 };
220 
221 /**
222  * struct devlink_dpipe_header - dpipe header object
223  * @name: header name
224  * @id: index, global/local determined by global bit
225  * @fields: fields
226  * @fields_count: number of fields
227  * @global: indicates if header is shared like most protocol header
228  *	    or driver specific
229  */
230 struct devlink_dpipe_header {
231 	const char *name;
232 	unsigned int id;
233 	struct devlink_dpipe_field *fields;
234 	unsigned int fields_count;
235 	bool global;
236 };
237 
238 /**
239  * struct devlink_dpipe_match - represents match operation
240  * @type: type of match
241  * @header_index: header index (packets can have several headers of same
242  *		  type like in case of tunnels)
243  * @header: header
244  * @field_id: field index
245  */
246 struct devlink_dpipe_match {
247 	enum devlink_dpipe_match_type type;
248 	unsigned int header_index;
249 	struct devlink_dpipe_header *header;
250 	unsigned int field_id;
251 };
252 
253 /**
254  * struct devlink_dpipe_action - represents action operation
255  * @type: type of action
256  * @header_index: header index (packets can have several headers of same
257  *		  type like in case of tunnels)
258  * @header: header
259  * @field_id: field index
260  */
261 struct devlink_dpipe_action {
262 	enum devlink_dpipe_action_type type;
263 	unsigned int header_index;
264 	struct devlink_dpipe_header *header;
265 	unsigned int field_id;
266 };
267 
268 /**
269  * struct devlink_dpipe_value - represents value of match/action
270  * @action: action
271  * @match: match
272  * @mapping_value: in case the field has some mapping this value
273  *                 specified the mapping value
274  * @mapping_valid: specify if mapping value is valid
275  * @value_size: value size
276  * @value: value
277  * @mask: bit mask
278  */
279 struct devlink_dpipe_value {
280 	union {
281 		struct devlink_dpipe_action *action;
282 		struct devlink_dpipe_match *match;
283 	};
284 	unsigned int mapping_value;
285 	bool mapping_valid;
286 	unsigned int value_size;
287 	void *value;
288 	void *mask;
289 };
290 
291 /**
292  * struct devlink_dpipe_entry - table entry object
293  * @index: index of the entry in the table
294  * @match_values: match values
295  * @match_values_count: count of matches tuples
296  * @action_values: actions values
297  * @action_values_count: count of actions values
298  * @counter: value of counter
299  * @counter_valid: Specify if value is valid from hardware
300  */
301 struct devlink_dpipe_entry {
302 	u64 index;
303 	struct devlink_dpipe_value *match_values;
304 	unsigned int match_values_count;
305 	struct devlink_dpipe_value *action_values;
306 	unsigned int action_values_count;
307 	u64 counter;
308 	bool counter_valid;
309 };
310 
311 /**
312  * struct devlink_dpipe_dump_ctx - context provided to driver in order
313  *				   to dump
314  * @info: info
315  * @cmd: devlink command
316  * @skb: skb
317  * @nest: top attribute
318  * @hdr: hdr
319  */
320 struct devlink_dpipe_dump_ctx {
321 	struct genl_info *info;
322 	enum devlink_command cmd;
323 	struct sk_buff *skb;
324 	struct nlattr *nest;
325 	void *hdr;
326 };
327 
328 struct devlink_dpipe_table_ops;
329 
330 /**
331  * struct devlink_dpipe_table - table object
332  * @priv: private
333  * @name: table name
334  * @counters_enabled: indicates if counters are active
335  * @counter_control_extern: indicates if counter control is in dpipe or
336  *			    external tool
337  * @resource_valid: Indicate that the resource id is valid
338  * @resource_id: relative resource this table is related to
339  * @resource_units: number of resource's unit consumed per table's entry
340  * @table_ops: table operations
341  * @rcu: rcu
342  */
343 struct devlink_dpipe_table {
344 	void *priv;
345 	/* private: */
346 	struct list_head list;
347 	/* public: */
348 	const char *name;
349 	bool counters_enabled;
350 	bool counter_control_extern;
351 	bool resource_valid;
352 	u64 resource_id;
353 	u64 resource_units;
354 	struct devlink_dpipe_table_ops *table_ops;
355 	struct rcu_head rcu;
356 };
357 
358 /**
359  * struct devlink_dpipe_table_ops - dpipe_table ops
360  * @actions_dump: dumps all tables actions
361  * @matches_dump: dumps all tables matches
362  * @entries_dump: dumps all active entries in the table
363  * @counters_set_update:  when changing the counter status hardware sync
364  *			  maybe needed to allocate/free counter related
365  *			  resources
366  * @size_get: get size
367  */
368 struct devlink_dpipe_table_ops {
369 	int (*actions_dump)(void *priv, struct sk_buff *skb);
370 	int (*matches_dump)(void *priv, struct sk_buff *skb);
371 	int (*entries_dump)(void *priv, bool counters_enabled,
372 			    struct devlink_dpipe_dump_ctx *dump_ctx);
373 	int (*counters_set_update)(void *priv, bool enable);
374 	u64 (*size_get)(void *priv);
375 };
376 
377 /**
378  * struct devlink_dpipe_headers - dpipe headers
379  * @headers: header array can be shared (global bit) or driver specific
380  * @headers_count: count of headers
381  */
382 struct devlink_dpipe_headers {
383 	struct devlink_dpipe_header **headers;
384 	unsigned int headers_count;
385 };
386 
387 /**
388  * struct devlink_resource_size_params - resource's size parameters
389  * @size_min: minimum size which can be set
390  * @size_max: maximum size which can be set
391  * @size_granularity: size granularity
392  * @unit: resource's basic unit
393  */
394 struct devlink_resource_size_params {
395 	u64 size_min;
396 	u64 size_max;
397 	u64 size_granularity;
398 	enum devlink_resource_unit unit;
399 };
400 
401 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)402 devlink_resource_size_params_init(struct devlink_resource_size_params *size_params,
403 				  u64 size_min, u64 size_max,
404 				  u64 size_granularity,
405 				  enum devlink_resource_unit unit)
406 {
407 	size_params->size_min = size_min;
408 	size_params->size_max = size_max;
409 	size_params->size_granularity = size_granularity;
410 	size_params->unit = unit;
411 }
412 
413 typedef u64 devlink_resource_occ_get_t(void *priv);
414 
415 #define DEVLINK_RESOURCE_ID_PARENT_TOP 0
416 
417 #define DEVLINK_RESOURCE_GENERIC_NAME_PORTS "physical_ports"
418 
419 #define __DEVLINK_PARAM_MAX_STRING_VALUE 32
420 enum devlink_param_type {
421 	DEVLINK_PARAM_TYPE_U8,
422 	DEVLINK_PARAM_TYPE_U16,
423 	DEVLINK_PARAM_TYPE_U32,
424 	DEVLINK_PARAM_TYPE_STRING,
425 	DEVLINK_PARAM_TYPE_BOOL,
426 };
427 
428 union devlink_param_value {
429 	u8 vu8;
430 	u16 vu16;
431 	u32 vu32;
432 	char vstr[__DEVLINK_PARAM_MAX_STRING_VALUE];
433 	bool vbool;
434 };
435 
436 struct devlink_param_gset_ctx {
437 	union devlink_param_value val;
438 	enum devlink_param_cmode cmode;
439 };
440 
441 /**
442  * struct devlink_flash_notify - devlink dev flash notify data
443  * @status_msg: current status string
444  * @component: firmware component being updated
445  * @done: amount of work completed of total amount
446  * @total: amount of work expected to be done
447  * @timeout: expected max timeout in seconds
448  *
449  * These are values to be given to userland to be displayed in order
450  * to show current activity in a firmware update process.
451  */
452 struct devlink_flash_notify {
453 	const char *status_msg;
454 	const char *component;
455 	unsigned long done;
456 	unsigned long total;
457 	unsigned long timeout;
458 };
459 
460 /**
461  * struct devlink_param - devlink configuration parameter data
462  * @id: devlink parameter id number
463  * @name: name of the parameter
464  * @generic: indicates if the parameter is generic or driver specific
465  * @type: parameter type
466  * @supported_cmodes: bitmap of supported configuration modes
467  * @get: get parameter value, used for runtime and permanent
468  *       configuration modes
469  * @set: set parameter value, used for runtime and permanent
470  *       configuration modes
471  * @validate: validate input value is applicable (within value range, etc.)
472  *
473  * This struct should be used by the driver to fill the data for
474  * a parameter it registers.
475  */
476 struct devlink_param {
477 	u32 id;
478 	const char *name;
479 	bool generic;
480 	enum devlink_param_type type;
481 	unsigned long supported_cmodes;
482 	int (*get)(struct devlink *devlink, u32 id,
483 		   struct devlink_param_gset_ctx *ctx);
484 	int (*set)(struct devlink *devlink, u32 id,
485 		   struct devlink_param_gset_ctx *ctx);
486 	int (*validate)(struct devlink *devlink, u32 id,
487 			union devlink_param_value val,
488 			struct netlink_ext_ack *extack);
489 };
490 
491 struct devlink_param_item {
492 	struct list_head list;
493 	const struct devlink_param *param;
494 	union devlink_param_value driverinit_value;
495 	bool driverinit_value_valid;
496 	union devlink_param_value driverinit_value_new; /* Not reachable
497 							 * until reload.
498 							 */
499 	bool driverinit_value_new_valid;
500 };
501 
502 enum devlink_param_generic_id {
503 	DEVLINK_PARAM_GENERIC_ID_INT_ERR_RESET,
504 	DEVLINK_PARAM_GENERIC_ID_MAX_MACS,
505 	DEVLINK_PARAM_GENERIC_ID_ENABLE_SRIOV,
506 	DEVLINK_PARAM_GENERIC_ID_REGION_SNAPSHOT,
507 	DEVLINK_PARAM_GENERIC_ID_IGNORE_ARI,
508 	DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX,
509 	DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN,
510 	DEVLINK_PARAM_GENERIC_ID_FW_LOAD_POLICY,
511 	DEVLINK_PARAM_GENERIC_ID_RESET_DEV_ON_DRV_PROBE,
512 	DEVLINK_PARAM_GENERIC_ID_ENABLE_ROCE,
513 	DEVLINK_PARAM_GENERIC_ID_ENABLE_REMOTE_DEV_RESET,
514 	DEVLINK_PARAM_GENERIC_ID_ENABLE_ETH,
515 	DEVLINK_PARAM_GENERIC_ID_ENABLE_RDMA,
516 	DEVLINK_PARAM_GENERIC_ID_ENABLE_VNET,
517 	DEVLINK_PARAM_GENERIC_ID_ENABLE_IWARP,
518 	DEVLINK_PARAM_GENERIC_ID_IO_EQ_SIZE,
519 	DEVLINK_PARAM_GENERIC_ID_EVENT_EQ_SIZE,
520 
521 	/* add new param generic ids above here*/
522 	__DEVLINK_PARAM_GENERIC_ID_MAX,
523 	DEVLINK_PARAM_GENERIC_ID_MAX = __DEVLINK_PARAM_GENERIC_ID_MAX - 1,
524 };
525 
526 #define DEVLINK_PARAM_GENERIC_INT_ERR_RESET_NAME "internal_error_reset"
527 #define DEVLINK_PARAM_GENERIC_INT_ERR_RESET_TYPE DEVLINK_PARAM_TYPE_BOOL
528 
529 #define DEVLINK_PARAM_GENERIC_MAX_MACS_NAME "max_macs"
530 #define DEVLINK_PARAM_GENERIC_MAX_MACS_TYPE DEVLINK_PARAM_TYPE_U32
531 
532 #define DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_NAME "enable_sriov"
533 #define DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_TYPE DEVLINK_PARAM_TYPE_BOOL
534 
535 #define DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_NAME "region_snapshot_enable"
536 #define DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_TYPE DEVLINK_PARAM_TYPE_BOOL
537 
538 #define DEVLINK_PARAM_GENERIC_IGNORE_ARI_NAME "ignore_ari"
539 #define DEVLINK_PARAM_GENERIC_IGNORE_ARI_TYPE DEVLINK_PARAM_TYPE_BOOL
540 
541 #define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MAX_NAME "msix_vec_per_pf_max"
542 #define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MAX_TYPE DEVLINK_PARAM_TYPE_U32
543 
544 #define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_NAME "msix_vec_per_pf_min"
545 #define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_TYPE DEVLINK_PARAM_TYPE_U32
546 
547 #define DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_NAME "fw_load_policy"
548 #define DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_TYPE DEVLINK_PARAM_TYPE_U8
549 
550 #define DEVLINK_PARAM_GENERIC_RESET_DEV_ON_DRV_PROBE_NAME \
551 	"reset_dev_on_drv_probe"
552 #define DEVLINK_PARAM_GENERIC_RESET_DEV_ON_DRV_PROBE_TYPE DEVLINK_PARAM_TYPE_U8
553 
554 #define DEVLINK_PARAM_GENERIC_ENABLE_ROCE_NAME "enable_roce"
555 #define DEVLINK_PARAM_GENERIC_ENABLE_ROCE_TYPE DEVLINK_PARAM_TYPE_BOOL
556 
557 #define DEVLINK_PARAM_GENERIC_ENABLE_REMOTE_DEV_RESET_NAME "enable_remote_dev_reset"
558 #define DEVLINK_PARAM_GENERIC_ENABLE_REMOTE_DEV_RESET_TYPE DEVLINK_PARAM_TYPE_BOOL
559 
560 #define DEVLINK_PARAM_GENERIC_ENABLE_ETH_NAME "enable_eth"
561 #define DEVLINK_PARAM_GENERIC_ENABLE_ETH_TYPE DEVLINK_PARAM_TYPE_BOOL
562 
563 #define DEVLINK_PARAM_GENERIC_ENABLE_RDMA_NAME "enable_rdma"
564 #define DEVLINK_PARAM_GENERIC_ENABLE_RDMA_TYPE DEVLINK_PARAM_TYPE_BOOL
565 
566 #define DEVLINK_PARAM_GENERIC_ENABLE_VNET_NAME "enable_vnet"
567 #define DEVLINK_PARAM_GENERIC_ENABLE_VNET_TYPE DEVLINK_PARAM_TYPE_BOOL
568 
569 #define DEVLINK_PARAM_GENERIC_ENABLE_IWARP_NAME "enable_iwarp"
570 #define DEVLINK_PARAM_GENERIC_ENABLE_IWARP_TYPE DEVLINK_PARAM_TYPE_BOOL
571 
572 #define DEVLINK_PARAM_GENERIC_IO_EQ_SIZE_NAME "io_eq_size"
573 #define DEVLINK_PARAM_GENERIC_IO_EQ_SIZE_TYPE DEVLINK_PARAM_TYPE_U32
574 
575 #define DEVLINK_PARAM_GENERIC_EVENT_EQ_SIZE_NAME "event_eq_size"
576 #define DEVLINK_PARAM_GENERIC_EVENT_EQ_SIZE_TYPE DEVLINK_PARAM_TYPE_U32
577 
578 #define DEVLINK_PARAM_GENERIC(_id, _cmodes, _get, _set, _validate)	\
579 {									\
580 	.id = DEVLINK_PARAM_GENERIC_ID_##_id,				\
581 	.name = DEVLINK_PARAM_GENERIC_##_id##_NAME,			\
582 	.type = DEVLINK_PARAM_GENERIC_##_id##_TYPE,			\
583 	.generic = true,						\
584 	.supported_cmodes = _cmodes,					\
585 	.get = _get,							\
586 	.set = _set,							\
587 	.validate = _validate,						\
588 }
589 
590 #define DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes, _get, _set, _validate)	\
591 {									\
592 	.id = _id,							\
593 	.name = _name,							\
594 	.type = _type,							\
595 	.supported_cmodes = _cmodes,					\
596 	.get = _get,							\
597 	.set = _set,							\
598 	.validate = _validate,						\
599 }
600 
601 /* Part number, identifier of board design */
602 #define DEVLINK_INFO_VERSION_GENERIC_BOARD_ID	"board.id"
603 /* Revision of board design */
604 #define DEVLINK_INFO_VERSION_GENERIC_BOARD_REV	"board.rev"
605 /* Maker of the board */
606 #define DEVLINK_INFO_VERSION_GENERIC_BOARD_MANUFACTURE	"board.manufacture"
607 
608 /* Part number, identifier of asic design */
609 #define DEVLINK_INFO_VERSION_GENERIC_ASIC_ID	"asic.id"
610 /* Revision of asic design */
611 #define DEVLINK_INFO_VERSION_GENERIC_ASIC_REV	"asic.rev"
612 
613 /* Overall FW version */
614 #define DEVLINK_INFO_VERSION_GENERIC_FW		"fw"
615 /* Control processor FW version */
616 #define DEVLINK_INFO_VERSION_GENERIC_FW_MGMT	"fw.mgmt"
617 /* FW interface specification version */
618 #define DEVLINK_INFO_VERSION_GENERIC_FW_MGMT_API	"fw.mgmt.api"
619 /* Data path microcode controlling high-speed packet processing */
620 #define DEVLINK_INFO_VERSION_GENERIC_FW_APP	"fw.app"
621 /* UNDI software version */
622 #define DEVLINK_INFO_VERSION_GENERIC_FW_UNDI	"fw.undi"
623 /* NCSI support/handler version */
624 #define DEVLINK_INFO_VERSION_GENERIC_FW_NCSI	"fw.ncsi"
625 /* FW parameter set id */
626 #define DEVLINK_INFO_VERSION_GENERIC_FW_PSID	"fw.psid"
627 /* RoCE FW version */
628 #define DEVLINK_INFO_VERSION_GENERIC_FW_ROCE	"fw.roce"
629 /* Firmware bundle identifier */
630 #define DEVLINK_INFO_VERSION_GENERIC_FW_BUNDLE_ID	"fw.bundle_id"
631 /* Bootloader */
632 #define DEVLINK_INFO_VERSION_GENERIC_FW_BOOTLOADER	"fw.bootloader"
633 
634 /**
635  * struct devlink_flash_update_params - Flash Update parameters
636  * @fw: pointer to the firmware data to update from
637  * @component: the flash component to update
638  * @overwrite_mask: which types of flash update are supported (may be %0)
639  *
640  * With the exception of fw, drivers must opt-in to parameters by
641  * setting the appropriate bit in the supported_flash_update_params field in
642  * their devlink_ops structure.
643  */
644 struct devlink_flash_update_params {
645 	const struct firmware *fw;
646 	const char *component;
647 	u32 overwrite_mask;
648 };
649 
650 #define DEVLINK_SUPPORT_FLASH_UPDATE_OVERWRITE_MASK	BIT(0)
651 
652 struct devlink_region;
653 struct devlink_info_req;
654 
655 /**
656  * struct devlink_region_ops - Region operations
657  * @name: region name
658  * @destructor: callback used to free snapshot memory when deleting
659  * @snapshot: callback to request an immediate snapshot. On success,
660  *            the data variable must be updated to point to the snapshot data.
661  *            The function will be called while the devlink instance lock is
662  *            held.
663  * @read: callback to directly read a portion of the region. On success,
664  *        the data pointer will be updated with the contents of the
665  *        requested portion of the region. The function will be called
666  *        while the devlink instance lock is held.
667  * @priv: Pointer to driver private data for the region operation
668  */
669 struct devlink_region_ops {
670 	const char *name;
671 	void (*destructor)(const void *data);
672 	int (*snapshot)(struct devlink *devlink,
673 			const struct devlink_region_ops *ops,
674 			struct netlink_ext_ack *extack,
675 			u8 **data);
676 	int (*read)(struct devlink *devlink,
677 		    const struct devlink_region_ops *ops,
678 		    struct netlink_ext_ack *extack,
679 		    u64 offset, u32 size, u8 *data);
680 	void *priv;
681 };
682 
683 /**
684  * struct devlink_port_region_ops - Region operations for a port
685  * @name: region name
686  * @destructor: callback used to free snapshot memory when deleting
687  * @snapshot: callback to request an immediate snapshot. On success,
688  *            the data variable must be updated to point to the snapshot data.
689  *            The function will be called while the devlink instance lock is
690  *            held.
691  * @read: callback to directly read a portion of the region. On success,
692  *        the data pointer will be updated with the contents of the
693  *        requested portion of the region. The function will be called
694  *        while the devlink instance lock is held.
695  * @priv: Pointer to driver private data for the region operation
696  */
697 struct devlink_port_region_ops {
698 	const char *name;
699 	void (*destructor)(const void *data);
700 	int (*snapshot)(struct devlink_port *port,
701 			const struct devlink_port_region_ops *ops,
702 			struct netlink_ext_ack *extack,
703 			u8 **data);
704 	int (*read)(struct devlink_port *port,
705 		    const struct devlink_port_region_ops *ops,
706 		    struct netlink_ext_ack *extack,
707 		    u64 offset, u32 size, u8 *data);
708 	void *priv;
709 };
710 
711 struct devlink_fmsg;
712 struct devlink_health_reporter;
713 
714 enum devlink_health_reporter_state {
715 	DEVLINK_HEALTH_REPORTER_STATE_HEALTHY,
716 	DEVLINK_HEALTH_REPORTER_STATE_ERROR,
717 };
718 
719 /**
720  * struct devlink_health_reporter_ops - Reporter operations
721  * @name: reporter name
722  * @recover: callback to recover from reported error
723  *           if priv_ctx is NULL, run a full recover
724  * @dump: callback to dump an object
725  *        if priv_ctx is NULL, run a full dump
726  * @diagnose: callback to diagnose the current status
727  * @test: callback to trigger a test event
728  */
729 
730 struct devlink_health_reporter_ops {
731 	char *name;
732 	int (*recover)(struct devlink_health_reporter *reporter,
733 		       void *priv_ctx, struct netlink_ext_ack *extack);
734 	int (*dump)(struct devlink_health_reporter *reporter,
735 		    struct devlink_fmsg *fmsg, void *priv_ctx,
736 		    struct netlink_ext_ack *extack);
737 	int (*diagnose)(struct devlink_health_reporter *reporter,
738 			struct devlink_fmsg *fmsg,
739 			struct netlink_ext_ack *extack);
740 	int (*test)(struct devlink_health_reporter *reporter,
741 		    struct netlink_ext_ack *extack);
742 };
743 
744 /**
745  * struct devlink_trap_metadata - Packet trap metadata.
746  * @trap_name: Trap name.
747  * @trap_group_name: Trap group name.
748  * @input_dev: Input netdevice.
749  * @dev_tracker: refcount tracker for @input_dev.
750  * @fa_cookie: Flow action user cookie.
751  * @trap_type: Trap type.
752  */
753 struct devlink_trap_metadata {
754 	const char *trap_name;
755 	const char *trap_group_name;
756 
757 	struct net_device *input_dev;
758 	netdevice_tracker dev_tracker;
759 
760 	const struct flow_action_cookie *fa_cookie;
761 	enum devlink_trap_type trap_type;
762 };
763 
764 /**
765  * struct devlink_trap_policer - Immutable packet trap policer attributes.
766  * @id: Policer identifier.
767  * @init_rate: Initial rate in packets / sec.
768  * @init_burst: Initial burst size in packets.
769  * @max_rate: Maximum rate.
770  * @min_rate: Minimum rate.
771  * @max_burst: Maximum burst size.
772  * @min_burst: Minimum burst size.
773  *
774  * Describes immutable attributes of packet trap policers that drivers register
775  * with devlink.
776  */
777 struct devlink_trap_policer {
778 	u32 id;
779 	u64 init_rate;
780 	u64 init_burst;
781 	u64 max_rate;
782 	u64 min_rate;
783 	u64 max_burst;
784 	u64 min_burst;
785 };
786 
787 /**
788  * struct devlink_trap_group - Immutable packet trap group attributes.
789  * @name: Trap group name.
790  * @id: Trap group identifier.
791  * @generic: Whether the trap group is generic or not.
792  * @init_policer_id: Initial policer identifier.
793  *
794  * Describes immutable attributes of packet trap groups that drivers register
795  * with devlink.
796  */
797 struct devlink_trap_group {
798 	const char *name;
799 	u16 id;
800 	bool generic;
801 	u32 init_policer_id;
802 };
803 
804 #define DEVLINK_TRAP_METADATA_TYPE_F_IN_PORT	BIT(0)
805 #define DEVLINK_TRAP_METADATA_TYPE_F_FA_COOKIE	BIT(1)
806 
807 /**
808  * struct devlink_trap - Immutable packet trap attributes.
809  * @type: Trap type.
810  * @init_action: Initial trap action.
811  * @generic: Whether the trap is generic or not.
812  * @id: Trap identifier.
813  * @name: Trap name.
814  * @init_group_id: Initial group identifier.
815  * @metadata_cap: Metadata types that can be provided by the trap.
816  *
817  * Describes immutable attributes of packet traps that drivers register with
818  * devlink.
819  */
820 struct devlink_trap {
821 	enum devlink_trap_type type;
822 	enum devlink_trap_action init_action;
823 	bool generic;
824 	u16 id;
825 	const char *name;
826 	u16 init_group_id;
827 	u32 metadata_cap;
828 };
829 
830 /* All traps must be documented in
831  * Documentation/networking/devlink/devlink-trap.rst
832  */
833 enum devlink_trap_generic_id {
834 	DEVLINK_TRAP_GENERIC_ID_SMAC_MC,
835 	DEVLINK_TRAP_GENERIC_ID_VLAN_TAG_MISMATCH,
836 	DEVLINK_TRAP_GENERIC_ID_INGRESS_VLAN_FILTER,
837 	DEVLINK_TRAP_GENERIC_ID_INGRESS_STP_FILTER,
838 	DEVLINK_TRAP_GENERIC_ID_EMPTY_TX_LIST,
839 	DEVLINK_TRAP_GENERIC_ID_PORT_LOOPBACK_FILTER,
840 	DEVLINK_TRAP_GENERIC_ID_BLACKHOLE_ROUTE,
841 	DEVLINK_TRAP_GENERIC_ID_TTL_ERROR,
842 	DEVLINK_TRAP_GENERIC_ID_TAIL_DROP,
843 	DEVLINK_TRAP_GENERIC_ID_NON_IP_PACKET,
844 	DEVLINK_TRAP_GENERIC_ID_UC_DIP_MC_DMAC,
845 	DEVLINK_TRAP_GENERIC_ID_DIP_LB,
846 	DEVLINK_TRAP_GENERIC_ID_SIP_MC,
847 	DEVLINK_TRAP_GENERIC_ID_SIP_LB,
848 	DEVLINK_TRAP_GENERIC_ID_CORRUPTED_IP_HDR,
849 	DEVLINK_TRAP_GENERIC_ID_IPV4_SIP_BC,
850 	DEVLINK_TRAP_GENERIC_ID_IPV6_MC_DIP_RESERVED_SCOPE,
851 	DEVLINK_TRAP_GENERIC_ID_IPV6_MC_DIP_INTERFACE_LOCAL_SCOPE,
852 	DEVLINK_TRAP_GENERIC_ID_MTU_ERROR,
853 	DEVLINK_TRAP_GENERIC_ID_UNRESOLVED_NEIGH,
854 	DEVLINK_TRAP_GENERIC_ID_RPF,
855 	DEVLINK_TRAP_GENERIC_ID_REJECT_ROUTE,
856 	DEVLINK_TRAP_GENERIC_ID_IPV4_LPM_UNICAST_MISS,
857 	DEVLINK_TRAP_GENERIC_ID_IPV6_LPM_UNICAST_MISS,
858 	DEVLINK_TRAP_GENERIC_ID_NON_ROUTABLE,
859 	DEVLINK_TRAP_GENERIC_ID_DECAP_ERROR,
860 	DEVLINK_TRAP_GENERIC_ID_OVERLAY_SMAC_MC,
861 	DEVLINK_TRAP_GENERIC_ID_INGRESS_FLOW_ACTION_DROP,
862 	DEVLINK_TRAP_GENERIC_ID_EGRESS_FLOW_ACTION_DROP,
863 	DEVLINK_TRAP_GENERIC_ID_STP,
864 	DEVLINK_TRAP_GENERIC_ID_LACP,
865 	DEVLINK_TRAP_GENERIC_ID_LLDP,
866 	DEVLINK_TRAP_GENERIC_ID_IGMP_QUERY,
867 	DEVLINK_TRAP_GENERIC_ID_IGMP_V1_REPORT,
868 	DEVLINK_TRAP_GENERIC_ID_IGMP_V2_REPORT,
869 	DEVLINK_TRAP_GENERIC_ID_IGMP_V3_REPORT,
870 	DEVLINK_TRAP_GENERIC_ID_IGMP_V2_LEAVE,
871 	DEVLINK_TRAP_GENERIC_ID_MLD_QUERY,
872 	DEVLINK_TRAP_GENERIC_ID_MLD_V1_REPORT,
873 	DEVLINK_TRAP_GENERIC_ID_MLD_V2_REPORT,
874 	DEVLINK_TRAP_GENERIC_ID_MLD_V1_DONE,
875 	DEVLINK_TRAP_GENERIC_ID_IPV4_DHCP,
876 	DEVLINK_TRAP_GENERIC_ID_IPV6_DHCP,
877 	DEVLINK_TRAP_GENERIC_ID_ARP_REQUEST,
878 	DEVLINK_TRAP_GENERIC_ID_ARP_RESPONSE,
879 	DEVLINK_TRAP_GENERIC_ID_ARP_OVERLAY,
880 	DEVLINK_TRAP_GENERIC_ID_IPV6_NEIGH_SOLICIT,
881 	DEVLINK_TRAP_GENERIC_ID_IPV6_NEIGH_ADVERT,
882 	DEVLINK_TRAP_GENERIC_ID_IPV4_BFD,
883 	DEVLINK_TRAP_GENERIC_ID_IPV6_BFD,
884 	DEVLINK_TRAP_GENERIC_ID_IPV4_OSPF,
885 	DEVLINK_TRAP_GENERIC_ID_IPV6_OSPF,
886 	DEVLINK_TRAP_GENERIC_ID_IPV4_BGP,
887 	DEVLINK_TRAP_GENERIC_ID_IPV6_BGP,
888 	DEVLINK_TRAP_GENERIC_ID_IPV4_VRRP,
889 	DEVLINK_TRAP_GENERIC_ID_IPV6_VRRP,
890 	DEVLINK_TRAP_GENERIC_ID_IPV4_PIM,
891 	DEVLINK_TRAP_GENERIC_ID_IPV6_PIM,
892 	DEVLINK_TRAP_GENERIC_ID_UC_LB,
893 	DEVLINK_TRAP_GENERIC_ID_LOCAL_ROUTE,
894 	DEVLINK_TRAP_GENERIC_ID_EXTERNAL_ROUTE,
895 	DEVLINK_TRAP_GENERIC_ID_IPV6_UC_DIP_LINK_LOCAL_SCOPE,
896 	DEVLINK_TRAP_GENERIC_ID_IPV6_DIP_ALL_NODES,
897 	DEVLINK_TRAP_GENERIC_ID_IPV6_DIP_ALL_ROUTERS,
898 	DEVLINK_TRAP_GENERIC_ID_IPV6_ROUTER_SOLICIT,
899 	DEVLINK_TRAP_GENERIC_ID_IPV6_ROUTER_ADVERT,
900 	DEVLINK_TRAP_GENERIC_ID_IPV6_REDIRECT,
901 	DEVLINK_TRAP_GENERIC_ID_IPV4_ROUTER_ALERT,
902 	DEVLINK_TRAP_GENERIC_ID_IPV6_ROUTER_ALERT,
903 	DEVLINK_TRAP_GENERIC_ID_PTP_EVENT,
904 	DEVLINK_TRAP_GENERIC_ID_PTP_GENERAL,
905 	DEVLINK_TRAP_GENERIC_ID_FLOW_ACTION_SAMPLE,
906 	DEVLINK_TRAP_GENERIC_ID_FLOW_ACTION_TRAP,
907 	DEVLINK_TRAP_GENERIC_ID_EARLY_DROP,
908 	DEVLINK_TRAP_GENERIC_ID_VXLAN_PARSING,
909 	DEVLINK_TRAP_GENERIC_ID_LLC_SNAP_PARSING,
910 	DEVLINK_TRAP_GENERIC_ID_VLAN_PARSING,
911 	DEVLINK_TRAP_GENERIC_ID_PPPOE_PPP_PARSING,
912 	DEVLINK_TRAP_GENERIC_ID_MPLS_PARSING,
913 	DEVLINK_TRAP_GENERIC_ID_ARP_PARSING,
914 	DEVLINK_TRAP_GENERIC_ID_IP_1_PARSING,
915 	DEVLINK_TRAP_GENERIC_ID_IP_N_PARSING,
916 	DEVLINK_TRAP_GENERIC_ID_GRE_PARSING,
917 	DEVLINK_TRAP_GENERIC_ID_UDP_PARSING,
918 	DEVLINK_TRAP_GENERIC_ID_TCP_PARSING,
919 	DEVLINK_TRAP_GENERIC_ID_IPSEC_PARSING,
920 	DEVLINK_TRAP_GENERIC_ID_SCTP_PARSING,
921 	DEVLINK_TRAP_GENERIC_ID_DCCP_PARSING,
922 	DEVLINK_TRAP_GENERIC_ID_GTP_PARSING,
923 	DEVLINK_TRAP_GENERIC_ID_ESP_PARSING,
924 	DEVLINK_TRAP_GENERIC_ID_BLACKHOLE_NEXTHOP,
925 	DEVLINK_TRAP_GENERIC_ID_DMAC_FILTER,
926 	DEVLINK_TRAP_GENERIC_ID_EAPOL,
927 	DEVLINK_TRAP_GENERIC_ID_LOCKED_PORT,
928 
929 	/* Add new generic trap IDs above */
930 	__DEVLINK_TRAP_GENERIC_ID_MAX,
931 	DEVLINK_TRAP_GENERIC_ID_MAX = __DEVLINK_TRAP_GENERIC_ID_MAX - 1,
932 };
933 
934 /* All trap groups must be documented in
935  * Documentation/networking/devlink/devlink-trap.rst
936  */
937 enum devlink_trap_group_generic_id {
938 	DEVLINK_TRAP_GROUP_GENERIC_ID_L2_DROPS,
939 	DEVLINK_TRAP_GROUP_GENERIC_ID_L3_DROPS,
940 	DEVLINK_TRAP_GROUP_GENERIC_ID_L3_EXCEPTIONS,
941 	DEVLINK_TRAP_GROUP_GENERIC_ID_BUFFER_DROPS,
942 	DEVLINK_TRAP_GROUP_GENERIC_ID_TUNNEL_DROPS,
943 	DEVLINK_TRAP_GROUP_GENERIC_ID_ACL_DROPS,
944 	DEVLINK_TRAP_GROUP_GENERIC_ID_STP,
945 	DEVLINK_TRAP_GROUP_GENERIC_ID_LACP,
946 	DEVLINK_TRAP_GROUP_GENERIC_ID_LLDP,
947 	DEVLINK_TRAP_GROUP_GENERIC_ID_MC_SNOOPING,
948 	DEVLINK_TRAP_GROUP_GENERIC_ID_DHCP,
949 	DEVLINK_TRAP_GROUP_GENERIC_ID_NEIGH_DISCOVERY,
950 	DEVLINK_TRAP_GROUP_GENERIC_ID_BFD,
951 	DEVLINK_TRAP_GROUP_GENERIC_ID_OSPF,
952 	DEVLINK_TRAP_GROUP_GENERIC_ID_BGP,
953 	DEVLINK_TRAP_GROUP_GENERIC_ID_VRRP,
954 	DEVLINK_TRAP_GROUP_GENERIC_ID_PIM,
955 	DEVLINK_TRAP_GROUP_GENERIC_ID_UC_LB,
956 	DEVLINK_TRAP_GROUP_GENERIC_ID_LOCAL_DELIVERY,
957 	DEVLINK_TRAP_GROUP_GENERIC_ID_EXTERNAL_DELIVERY,
958 	DEVLINK_TRAP_GROUP_GENERIC_ID_IPV6,
959 	DEVLINK_TRAP_GROUP_GENERIC_ID_PTP_EVENT,
960 	DEVLINK_TRAP_GROUP_GENERIC_ID_PTP_GENERAL,
961 	DEVLINK_TRAP_GROUP_GENERIC_ID_ACL_SAMPLE,
962 	DEVLINK_TRAP_GROUP_GENERIC_ID_ACL_TRAP,
963 	DEVLINK_TRAP_GROUP_GENERIC_ID_PARSER_ERROR_DROPS,
964 	DEVLINK_TRAP_GROUP_GENERIC_ID_EAPOL,
965 
966 	/* Add new generic trap group IDs above */
967 	__DEVLINK_TRAP_GROUP_GENERIC_ID_MAX,
968 	DEVLINK_TRAP_GROUP_GENERIC_ID_MAX =
969 		__DEVLINK_TRAP_GROUP_GENERIC_ID_MAX - 1,
970 };
971 
972 #define DEVLINK_TRAP_GENERIC_NAME_SMAC_MC \
973 	"source_mac_is_multicast"
974 #define DEVLINK_TRAP_GENERIC_NAME_VLAN_TAG_MISMATCH \
975 	"vlan_tag_mismatch"
976 #define DEVLINK_TRAP_GENERIC_NAME_INGRESS_VLAN_FILTER \
977 	"ingress_vlan_filter"
978 #define DEVLINK_TRAP_GENERIC_NAME_INGRESS_STP_FILTER \
979 	"ingress_spanning_tree_filter"
980 #define DEVLINK_TRAP_GENERIC_NAME_EMPTY_TX_LIST \
981 	"port_list_is_empty"
982 #define DEVLINK_TRAP_GENERIC_NAME_PORT_LOOPBACK_FILTER \
983 	"port_loopback_filter"
984 #define DEVLINK_TRAP_GENERIC_NAME_BLACKHOLE_ROUTE \
985 	"blackhole_route"
986 #define DEVLINK_TRAP_GENERIC_NAME_TTL_ERROR \
987 	"ttl_value_is_too_small"
988 #define DEVLINK_TRAP_GENERIC_NAME_TAIL_DROP \
989 	"tail_drop"
990 #define DEVLINK_TRAP_GENERIC_NAME_NON_IP_PACKET \
991 	"non_ip"
992 #define DEVLINK_TRAP_GENERIC_NAME_UC_DIP_MC_DMAC \
993 	"uc_dip_over_mc_dmac"
994 #define DEVLINK_TRAP_GENERIC_NAME_DIP_LB \
995 	"dip_is_loopback_address"
996 #define DEVLINK_TRAP_GENERIC_NAME_SIP_MC \
997 	"sip_is_mc"
998 #define DEVLINK_TRAP_GENERIC_NAME_SIP_LB \
999 	"sip_is_loopback_address"
1000 #define DEVLINK_TRAP_GENERIC_NAME_CORRUPTED_IP_HDR \
1001 	"ip_header_corrupted"
1002 #define DEVLINK_TRAP_GENERIC_NAME_IPV4_SIP_BC \
1003 	"ipv4_sip_is_limited_bc"
1004 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_MC_DIP_RESERVED_SCOPE \
1005 	"ipv6_mc_dip_reserved_scope"
1006 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_MC_DIP_INTERFACE_LOCAL_SCOPE \
1007 	"ipv6_mc_dip_interface_local_scope"
1008 #define DEVLINK_TRAP_GENERIC_NAME_MTU_ERROR \
1009 	"mtu_value_is_too_small"
1010 #define DEVLINK_TRAP_GENERIC_NAME_UNRESOLVED_NEIGH \
1011 	"unresolved_neigh"
1012 #define DEVLINK_TRAP_GENERIC_NAME_RPF \
1013 	"mc_reverse_path_forwarding"
1014 #define DEVLINK_TRAP_GENERIC_NAME_REJECT_ROUTE \
1015 	"reject_route"
1016 #define DEVLINK_TRAP_GENERIC_NAME_IPV4_LPM_UNICAST_MISS \
1017 	"ipv4_lpm_miss"
1018 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_LPM_UNICAST_MISS \
1019 	"ipv6_lpm_miss"
1020 #define DEVLINK_TRAP_GENERIC_NAME_NON_ROUTABLE \
1021 	"non_routable_packet"
1022 #define DEVLINK_TRAP_GENERIC_NAME_DECAP_ERROR \
1023 	"decap_error"
1024 #define DEVLINK_TRAP_GENERIC_NAME_OVERLAY_SMAC_MC \
1025 	"overlay_smac_is_mc"
1026 #define DEVLINK_TRAP_GENERIC_NAME_INGRESS_FLOW_ACTION_DROP \
1027 	"ingress_flow_action_drop"
1028 #define DEVLINK_TRAP_GENERIC_NAME_EGRESS_FLOW_ACTION_DROP \
1029 	"egress_flow_action_drop"
1030 #define DEVLINK_TRAP_GENERIC_NAME_STP \
1031 	"stp"
1032 #define DEVLINK_TRAP_GENERIC_NAME_LACP \
1033 	"lacp"
1034 #define DEVLINK_TRAP_GENERIC_NAME_LLDP \
1035 	"lldp"
1036 #define DEVLINK_TRAP_GENERIC_NAME_IGMP_QUERY \
1037 	"igmp_query"
1038 #define DEVLINK_TRAP_GENERIC_NAME_IGMP_V1_REPORT \
1039 	"igmp_v1_report"
1040 #define DEVLINK_TRAP_GENERIC_NAME_IGMP_V2_REPORT \
1041 	"igmp_v2_report"
1042 #define DEVLINK_TRAP_GENERIC_NAME_IGMP_V3_REPORT \
1043 	"igmp_v3_report"
1044 #define DEVLINK_TRAP_GENERIC_NAME_IGMP_V2_LEAVE \
1045 	"igmp_v2_leave"
1046 #define DEVLINK_TRAP_GENERIC_NAME_MLD_QUERY \
1047 	"mld_query"
1048 #define DEVLINK_TRAP_GENERIC_NAME_MLD_V1_REPORT \
1049 	"mld_v1_report"
1050 #define DEVLINK_TRAP_GENERIC_NAME_MLD_V2_REPORT \
1051 	"mld_v2_report"
1052 #define DEVLINK_TRAP_GENERIC_NAME_MLD_V1_DONE \
1053 	"mld_v1_done"
1054 #define DEVLINK_TRAP_GENERIC_NAME_IPV4_DHCP \
1055 	"ipv4_dhcp"
1056 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_DHCP \
1057 	"ipv6_dhcp"
1058 #define DEVLINK_TRAP_GENERIC_NAME_ARP_REQUEST \
1059 	"arp_request"
1060 #define DEVLINK_TRAP_GENERIC_NAME_ARP_RESPONSE \
1061 	"arp_response"
1062 #define DEVLINK_TRAP_GENERIC_NAME_ARP_OVERLAY \
1063 	"arp_overlay"
1064 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_NEIGH_SOLICIT \
1065 	"ipv6_neigh_solicit"
1066 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_NEIGH_ADVERT \
1067 	"ipv6_neigh_advert"
1068 #define DEVLINK_TRAP_GENERIC_NAME_IPV4_BFD \
1069 	"ipv4_bfd"
1070 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_BFD \
1071 	"ipv6_bfd"
1072 #define DEVLINK_TRAP_GENERIC_NAME_IPV4_OSPF \
1073 	"ipv4_ospf"
1074 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_OSPF \
1075 	"ipv6_ospf"
1076 #define DEVLINK_TRAP_GENERIC_NAME_IPV4_BGP \
1077 	"ipv4_bgp"
1078 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_BGP \
1079 	"ipv6_bgp"
1080 #define DEVLINK_TRAP_GENERIC_NAME_IPV4_VRRP \
1081 	"ipv4_vrrp"
1082 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_VRRP \
1083 	"ipv6_vrrp"
1084 #define DEVLINK_TRAP_GENERIC_NAME_IPV4_PIM \
1085 	"ipv4_pim"
1086 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_PIM \
1087 	"ipv6_pim"
1088 #define DEVLINK_TRAP_GENERIC_NAME_UC_LB \
1089 	"uc_loopback"
1090 #define DEVLINK_TRAP_GENERIC_NAME_LOCAL_ROUTE \
1091 	"local_route"
1092 #define DEVLINK_TRAP_GENERIC_NAME_EXTERNAL_ROUTE \
1093 	"external_route"
1094 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_UC_DIP_LINK_LOCAL_SCOPE \
1095 	"ipv6_uc_dip_link_local_scope"
1096 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_DIP_ALL_NODES \
1097 	"ipv6_dip_all_nodes"
1098 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_DIP_ALL_ROUTERS \
1099 	"ipv6_dip_all_routers"
1100 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_ROUTER_SOLICIT \
1101 	"ipv6_router_solicit"
1102 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_ROUTER_ADVERT \
1103 	"ipv6_router_advert"
1104 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_REDIRECT \
1105 	"ipv6_redirect"
1106 #define DEVLINK_TRAP_GENERIC_NAME_IPV4_ROUTER_ALERT \
1107 	"ipv4_router_alert"
1108 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_ROUTER_ALERT \
1109 	"ipv6_router_alert"
1110 #define DEVLINK_TRAP_GENERIC_NAME_PTP_EVENT \
1111 	"ptp_event"
1112 #define DEVLINK_TRAP_GENERIC_NAME_PTP_GENERAL \
1113 	"ptp_general"
1114 #define DEVLINK_TRAP_GENERIC_NAME_FLOW_ACTION_SAMPLE \
1115 	"flow_action_sample"
1116 #define DEVLINK_TRAP_GENERIC_NAME_FLOW_ACTION_TRAP \
1117 	"flow_action_trap"
1118 #define DEVLINK_TRAP_GENERIC_NAME_EARLY_DROP \
1119 	"early_drop"
1120 #define DEVLINK_TRAP_GENERIC_NAME_VXLAN_PARSING \
1121 	"vxlan_parsing"
1122 #define DEVLINK_TRAP_GENERIC_NAME_LLC_SNAP_PARSING \
1123 	"llc_snap_parsing"
1124 #define DEVLINK_TRAP_GENERIC_NAME_VLAN_PARSING \
1125 	"vlan_parsing"
1126 #define DEVLINK_TRAP_GENERIC_NAME_PPPOE_PPP_PARSING \
1127 	"pppoe_ppp_parsing"
1128 #define DEVLINK_TRAP_GENERIC_NAME_MPLS_PARSING \
1129 	"mpls_parsing"
1130 #define DEVLINK_TRAP_GENERIC_NAME_ARP_PARSING \
1131 	"arp_parsing"
1132 #define DEVLINK_TRAP_GENERIC_NAME_IP_1_PARSING \
1133 	"ip_1_parsing"
1134 #define DEVLINK_TRAP_GENERIC_NAME_IP_N_PARSING \
1135 	"ip_n_parsing"
1136 #define DEVLINK_TRAP_GENERIC_NAME_GRE_PARSING \
1137 	"gre_parsing"
1138 #define DEVLINK_TRAP_GENERIC_NAME_UDP_PARSING \
1139 	"udp_parsing"
1140 #define DEVLINK_TRAP_GENERIC_NAME_TCP_PARSING \
1141 	"tcp_parsing"
1142 #define DEVLINK_TRAP_GENERIC_NAME_IPSEC_PARSING \
1143 	"ipsec_parsing"
1144 #define DEVLINK_TRAP_GENERIC_NAME_SCTP_PARSING \
1145 	"sctp_parsing"
1146 #define DEVLINK_TRAP_GENERIC_NAME_DCCP_PARSING \
1147 	"dccp_parsing"
1148 #define DEVLINK_TRAP_GENERIC_NAME_GTP_PARSING \
1149 	"gtp_parsing"
1150 #define DEVLINK_TRAP_GENERIC_NAME_ESP_PARSING \
1151 	"esp_parsing"
1152 #define DEVLINK_TRAP_GENERIC_NAME_BLACKHOLE_NEXTHOP \
1153 	"blackhole_nexthop"
1154 #define DEVLINK_TRAP_GENERIC_NAME_DMAC_FILTER \
1155 	"dmac_filter"
1156 #define DEVLINK_TRAP_GENERIC_NAME_EAPOL \
1157 	"eapol"
1158 #define DEVLINK_TRAP_GENERIC_NAME_LOCKED_PORT \
1159 	"locked_port"
1160 
1161 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_L2_DROPS \
1162 	"l2_drops"
1163 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_L3_DROPS \
1164 	"l3_drops"
1165 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_L3_EXCEPTIONS \
1166 	"l3_exceptions"
1167 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_BUFFER_DROPS \
1168 	"buffer_drops"
1169 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_TUNNEL_DROPS \
1170 	"tunnel_drops"
1171 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_ACL_DROPS \
1172 	"acl_drops"
1173 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_STP \
1174 	"stp"
1175 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_LACP \
1176 	"lacp"
1177 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_LLDP \
1178 	"lldp"
1179 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_MC_SNOOPING  \
1180 	"mc_snooping"
1181 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_DHCP \
1182 	"dhcp"
1183 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_NEIGH_DISCOVERY \
1184 	"neigh_discovery"
1185 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_BFD \
1186 	"bfd"
1187 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_OSPF \
1188 	"ospf"
1189 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_BGP \
1190 	"bgp"
1191 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_VRRP \
1192 	"vrrp"
1193 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_PIM \
1194 	"pim"
1195 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_UC_LB \
1196 	"uc_loopback"
1197 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_LOCAL_DELIVERY \
1198 	"local_delivery"
1199 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_EXTERNAL_DELIVERY \
1200 	"external_delivery"
1201 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_IPV6 \
1202 	"ipv6"
1203 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_PTP_EVENT \
1204 	"ptp_event"
1205 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_PTP_GENERAL \
1206 	"ptp_general"
1207 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_ACL_SAMPLE \
1208 	"acl_sample"
1209 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_ACL_TRAP \
1210 	"acl_trap"
1211 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_PARSER_ERROR_DROPS \
1212 	"parser_error_drops"
1213 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_EAPOL \
1214 	"eapol"
1215 
1216 #define DEVLINK_TRAP_GENERIC(_type, _init_action, _id, _group_id,	      \
1217 			     _metadata_cap)				      \
1218 	{								      \
1219 		.type = DEVLINK_TRAP_TYPE_##_type,			      \
1220 		.init_action = DEVLINK_TRAP_ACTION_##_init_action,	      \
1221 		.generic = true,					      \
1222 		.id = DEVLINK_TRAP_GENERIC_ID_##_id,			      \
1223 		.name = DEVLINK_TRAP_GENERIC_NAME_##_id,		      \
1224 		.init_group_id = _group_id,				      \
1225 		.metadata_cap = _metadata_cap,				      \
1226 	}
1227 
1228 #define DEVLINK_TRAP_DRIVER(_type, _init_action, _id, _name, _group_id,	      \
1229 			    _metadata_cap)				      \
1230 	{								      \
1231 		.type = DEVLINK_TRAP_TYPE_##_type,			      \
1232 		.init_action = DEVLINK_TRAP_ACTION_##_init_action,	      \
1233 		.generic = false,					      \
1234 		.id = _id,						      \
1235 		.name = _name,						      \
1236 		.init_group_id = _group_id,				      \
1237 		.metadata_cap = _metadata_cap,				      \
1238 	}
1239 
1240 #define DEVLINK_TRAP_GROUP_GENERIC(_id, _policer_id)			      \
1241 	{								      \
1242 		.name = DEVLINK_TRAP_GROUP_GENERIC_NAME_##_id,		      \
1243 		.id = DEVLINK_TRAP_GROUP_GENERIC_ID_##_id,		      \
1244 		.generic = true,					      \
1245 		.init_policer_id = _policer_id,				      \
1246 	}
1247 
1248 #define DEVLINK_TRAP_POLICER(_id, _rate, _burst, _max_rate, _min_rate,	      \
1249 			     _max_burst, _min_burst)			      \
1250 	{								      \
1251 		.id = _id,						      \
1252 		.init_rate = _rate,					      \
1253 		.init_burst = _burst,					      \
1254 		.max_rate = _max_rate,					      \
1255 		.min_rate = _min_rate,					      \
1256 		.max_burst = _max_burst,				      \
1257 		.min_burst = _min_burst,				      \
1258 	}
1259 
1260 enum {
1261 	/* device supports reload operations */
1262 	DEVLINK_F_RELOAD = 1UL << 0,
1263 };
1264 
1265 struct devlink_ops {
1266 	/**
1267 	 * @supported_flash_update_params:
1268 	 * mask of parameters supported by the driver's .flash_update
1269 	 * implementation.
1270 	 */
1271 	u32 supported_flash_update_params;
1272 	unsigned long reload_actions;
1273 	unsigned long reload_limits;
1274 	int (*reload_down)(struct devlink *devlink, bool netns_change,
1275 			   enum devlink_reload_action action,
1276 			   enum devlink_reload_limit limit,
1277 			   struct netlink_ext_ack *extack);
1278 	int (*reload_up)(struct devlink *devlink, enum devlink_reload_action action,
1279 			 enum devlink_reload_limit limit, u32 *actions_performed,
1280 			 struct netlink_ext_ack *extack);
1281 	int (*sb_pool_get)(struct devlink *devlink, unsigned int sb_index,
1282 			   u16 pool_index,
1283 			   struct devlink_sb_pool_info *pool_info);
1284 	int (*sb_pool_set)(struct devlink *devlink, unsigned int sb_index,
1285 			   u16 pool_index, u32 size,
1286 			   enum devlink_sb_threshold_type threshold_type,
1287 			   struct netlink_ext_ack *extack);
1288 	int (*sb_port_pool_get)(struct devlink_port *devlink_port,
1289 				unsigned int sb_index, u16 pool_index,
1290 				u32 *p_threshold);
1291 	int (*sb_port_pool_set)(struct devlink_port *devlink_port,
1292 				unsigned int sb_index, u16 pool_index,
1293 				u32 threshold, struct netlink_ext_ack *extack);
1294 	int (*sb_tc_pool_bind_get)(struct devlink_port *devlink_port,
1295 				   unsigned int sb_index,
1296 				   u16 tc_index,
1297 				   enum devlink_sb_pool_type pool_type,
1298 				   u16 *p_pool_index, u32 *p_threshold);
1299 	int (*sb_tc_pool_bind_set)(struct devlink_port *devlink_port,
1300 				   unsigned int sb_index,
1301 				   u16 tc_index,
1302 				   enum devlink_sb_pool_type pool_type,
1303 				   u16 pool_index, u32 threshold,
1304 				   struct netlink_ext_ack *extack);
1305 	int (*sb_occ_snapshot)(struct devlink *devlink,
1306 			       unsigned int sb_index);
1307 	int (*sb_occ_max_clear)(struct devlink *devlink,
1308 				unsigned int sb_index);
1309 	int (*sb_occ_port_pool_get)(struct devlink_port *devlink_port,
1310 				    unsigned int sb_index, u16 pool_index,
1311 				    u32 *p_cur, u32 *p_max);
1312 	int (*sb_occ_tc_port_bind_get)(struct devlink_port *devlink_port,
1313 				       unsigned int sb_index,
1314 				       u16 tc_index,
1315 				       enum devlink_sb_pool_type pool_type,
1316 				       u32 *p_cur, u32 *p_max);
1317 
1318 	int (*eswitch_mode_get)(struct devlink *devlink, u16 *p_mode);
1319 	int (*eswitch_mode_set)(struct devlink *devlink, u16 mode,
1320 				struct netlink_ext_ack *extack);
1321 	int (*eswitch_inline_mode_get)(struct devlink *devlink, u8 *p_inline_mode);
1322 	int (*eswitch_inline_mode_set)(struct devlink *devlink, u8 inline_mode,
1323 				       struct netlink_ext_ack *extack);
1324 	int (*eswitch_encap_mode_get)(struct devlink *devlink,
1325 				      enum devlink_eswitch_encap_mode *p_encap_mode);
1326 	int (*eswitch_encap_mode_set)(struct devlink *devlink,
1327 				      enum devlink_eswitch_encap_mode encap_mode,
1328 				      struct netlink_ext_ack *extack);
1329 	int (*info_get)(struct devlink *devlink, struct devlink_info_req *req,
1330 			struct netlink_ext_ack *extack);
1331 	/**
1332 	 * @flash_update: Device flash update function
1333 	 *
1334 	 * Used to perform a flash update for the device. The set of
1335 	 * parameters supported by the driver should be set in
1336 	 * supported_flash_update_params.
1337 	 */
1338 	int (*flash_update)(struct devlink *devlink,
1339 			    struct devlink_flash_update_params *params,
1340 			    struct netlink_ext_ack *extack);
1341 	/**
1342 	 * @trap_init: Trap initialization function.
1343 	 *
1344 	 * Should be used by device drivers to initialize the trap in the
1345 	 * underlying device. Drivers should also store the provided trap
1346 	 * context, so that they could efficiently pass it to
1347 	 * devlink_trap_report() when the trap is triggered.
1348 	 */
1349 	int (*trap_init)(struct devlink *devlink,
1350 			 const struct devlink_trap *trap, void *trap_ctx);
1351 	/**
1352 	 * @trap_fini: Trap de-initialization function.
1353 	 *
1354 	 * Should be used by device drivers to de-initialize the trap in the
1355 	 * underlying device.
1356 	 */
1357 	void (*trap_fini)(struct devlink *devlink,
1358 			  const struct devlink_trap *trap, void *trap_ctx);
1359 	/**
1360 	 * @trap_action_set: Trap action set function.
1361 	 */
1362 	int (*trap_action_set)(struct devlink *devlink,
1363 			       const struct devlink_trap *trap,
1364 			       enum devlink_trap_action action,
1365 			       struct netlink_ext_ack *extack);
1366 	/**
1367 	 * @trap_group_init: Trap group initialization function.
1368 	 *
1369 	 * Should be used by device drivers to initialize the trap group in the
1370 	 * underlying device.
1371 	 */
1372 	int (*trap_group_init)(struct devlink *devlink,
1373 			       const struct devlink_trap_group *group);
1374 	/**
1375 	 * @trap_group_set: Trap group parameters set function.
1376 	 *
1377 	 * Note: @policer can be NULL when a policer is being unbound from
1378 	 * @group.
1379 	 */
1380 	int (*trap_group_set)(struct devlink *devlink,
1381 			      const struct devlink_trap_group *group,
1382 			      const struct devlink_trap_policer *policer,
1383 			      struct netlink_ext_ack *extack);
1384 	/**
1385 	 * @trap_group_action_set: Trap group action set function.
1386 	 *
1387 	 * If this callback is populated, it will take precedence over looping
1388 	 * over all traps in a group and calling .trap_action_set().
1389 	 */
1390 	int (*trap_group_action_set)(struct devlink *devlink,
1391 				     const struct devlink_trap_group *group,
1392 				     enum devlink_trap_action action,
1393 				     struct netlink_ext_ack *extack);
1394 	/**
1395 	 * @trap_drop_counter_get: Trap drop counter get function.
1396 	 *
1397 	 * Should be used by device drivers to report number of packets
1398 	 * that have been dropped, and cannot be passed to the devlink
1399 	 * subsystem by the underlying device.
1400 	 */
1401 	int (*trap_drop_counter_get)(struct devlink *devlink,
1402 				     const struct devlink_trap *trap,
1403 				     u64 *p_drops);
1404 	/**
1405 	 * @trap_policer_init: Trap policer initialization function.
1406 	 *
1407 	 * Should be used by device drivers to initialize the trap policer in
1408 	 * the underlying device.
1409 	 */
1410 	int (*trap_policer_init)(struct devlink *devlink,
1411 				 const struct devlink_trap_policer *policer);
1412 	/**
1413 	 * @trap_policer_fini: Trap policer de-initialization function.
1414 	 *
1415 	 * Should be used by device drivers to de-initialize the trap policer
1416 	 * in the underlying device.
1417 	 */
1418 	void (*trap_policer_fini)(struct devlink *devlink,
1419 				  const struct devlink_trap_policer *policer);
1420 	/**
1421 	 * @trap_policer_set: Trap policer parameters set function.
1422 	 */
1423 	int (*trap_policer_set)(struct devlink *devlink,
1424 				const struct devlink_trap_policer *policer,
1425 				u64 rate, u64 burst,
1426 				struct netlink_ext_ack *extack);
1427 	/**
1428 	 * @trap_policer_counter_get: Trap policer counter get function.
1429 	 *
1430 	 * Should be used by device drivers to report number of packets dropped
1431 	 * by the policer.
1432 	 */
1433 	int (*trap_policer_counter_get)(struct devlink *devlink,
1434 					const struct devlink_trap_policer *policer,
1435 					u64 *p_drops);
1436 	/**
1437 	 * port_new() - Add a new port function of a specified flavor
1438 	 * @devlink: Devlink instance
1439 	 * @attrs: attributes of the new port
1440 	 * @extack: extack for reporting error messages
1441 	 * @devlink_port: pointer to store new devlink port pointer
1442 	 *
1443 	 * Devlink core will call this device driver function upon user request
1444 	 * to create a new port function of a specified flavor and optional
1445 	 * attributes
1446 	 *
1447 	 * Notes:
1448 	 *	- On success, drivers must register a port with devlink core
1449 	 *
1450 	 * Return: 0 on success, negative value otherwise.
1451 	 */
1452 	int (*port_new)(struct devlink *devlink,
1453 			const struct devlink_port_new_attrs *attrs,
1454 			struct netlink_ext_ack *extack,
1455 			struct devlink_port **devlink_port);
1456 
1457 	/**
1458 	 * Rate control callbacks.
1459 	 */
1460 	int (*rate_leaf_tx_share_set)(struct devlink_rate *devlink_rate, void *priv,
1461 				      u64 tx_share, struct netlink_ext_ack *extack);
1462 	int (*rate_leaf_tx_max_set)(struct devlink_rate *devlink_rate, void *priv,
1463 				    u64 tx_max, struct netlink_ext_ack *extack);
1464 	int (*rate_leaf_tx_priority_set)(struct devlink_rate *devlink_rate, void *priv,
1465 					 u32 tx_priority, struct netlink_ext_ack *extack);
1466 	int (*rate_leaf_tx_weight_set)(struct devlink_rate *devlink_rate, void *priv,
1467 				       u32 tx_weight, struct netlink_ext_ack *extack);
1468 	int (*rate_node_tx_share_set)(struct devlink_rate *devlink_rate, void *priv,
1469 				      u64 tx_share, struct netlink_ext_ack *extack);
1470 	int (*rate_node_tx_max_set)(struct devlink_rate *devlink_rate, void *priv,
1471 				    u64 tx_max, struct netlink_ext_ack *extack);
1472 	int (*rate_node_tx_priority_set)(struct devlink_rate *devlink_rate, void *priv,
1473 					 u32 tx_priority, struct netlink_ext_ack *extack);
1474 	int (*rate_node_tx_weight_set)(struct devlink_rate *devlink_rate, void *priv,
1475 				       u32 tx_weight, struct netlink_ext_ack *extack);
1476 	int (*rate_node_new)(struct devlink_rate *rate_node, void **priv,
1477 			     struct netlink_ext_ack *extack);
1478 	int (*rate_node_del)(struct devlink_rate *rate_node, void *priv,
1479 			     struct netlink_ext_ack *extack);
1480 	int (*rate_leaf_parent_set)(struct devlink_rate *child,
1481 				    struct devlink_rate *parent,
1482 				    void *priv_child, void *priv_parent,
1483 				    struct netlink_ext_ack *extack);
1484 	int (*rate_node_parent_set)(struct devlink_rate *child,
1485 				    struct devlink_rate *parent,
1486 				    void *priv_child, void *priv_parent,
1487 				    struct netlink_ext_ack *extack);
1488 	/**
1489 	 * selftests_check() - queries if selftest is supported
1490 	 * @devlink: devlink instance
1491 	 * @id: test index
1492 	 * @extack: extack for reporting error messages
1493 	 *
1494 	 * Return: true if test is supported by the driver
1495 	 */
1496 	bool (*selftest_check)(struct devlink *devlink, unsigned int id,
1497 			       struct netlink_ext_ack *extack);
1498 	/**
1499 	 * selftest_run() - Runs a selftest
1500 	 * @devlink: devlink instance
1501 	 * @id: test index
1502 	 * @extack: extack for reporting error messages
1503 	 *
1504 	 * Return: status of the test
1505 	 */
1506 	enum devlink_selftest_status
1507 	(*selftest_run)(struct devlink *devlink, unsigned int id,
1508 			struct netlink_ext_ack *extack);
1509 };
1510 
1511 void *devlink_priv(struct devlink *devlink);
1512 struct devlink *priv_to_devlink(void *priv);
1513 struct device *devlink_to_dev(const struct devlink *devlink);
1514 
1515 /* Devlink instance explicit locking */
1516 void devl_lock(struct devlink *devlink);
1517 int devl_trylock(struct devlink *devlink);
1518 void devl_unlock(struct devlink *devlink);
1519 void devl_assert_locked(struct devlink *devlink);
1520 bool devl_lock_is_held(struct devlink *devlink);
1521 
1522 struct ib_device;
1523 
1524 struct net *devlink_net(const struct devlink *devlink);
1525 /* This call is intended for software devices that can create
1526  * devlink instances in other namespaces than init_net.
1527  *
1528  * Drivers that operate on real HW must use devlink_alloc() instead.
1529  */
1530 struct devlink *devlink_alloc_ns(const struct devlink_ops *ops,
1531 				 size_t priv_size, struct net *net,
1532 				 struct device *dev);
devlink_alloc(const struct devlink_ops * ops,size_t priv_size,struct device * dev)1533 static inline struct devlink *devlink_alloc(const struct devlink_ops *ops,
1534 					    size_t priv_size,
1535 					    struct device *dev)
1536 {
1537 	return devlink_alloc_ns(ops, priv_size, &init_net, dev);
1538 }
1539 
1540 int devl_register(struct devlink *devlink);
1541 void devl_unregister(struct devlink *devlink);
1542 void devlink_register(struct devlink *devlink);
1543 void devlink_unregister(struct devlink *devlink);
1544 void devlink_free(struct devlink *devlink);
1545 
1546 /**
1547  * struct devlink_port_ops - Port operations
1548  * @port_split: Callback used to split the port into multiple ones.
1549  * @port_unsplit: Callback used to unsplit the port group back into
1550  *		  a single port.
1551  * @port_type_set: Callback used to set a type of a port.
1552  * @port_del: Callback used to delete selected port along with related function.
1553  *	      Devlink core calls this upon user request to delete
1554  *	      a port previously created by devlink_ops->port_new().
1555  * @port_fn_hw_addr_get: Callback used to set port function's hardware address.
1556  *			 Should be used by device drivers to report
1557  *			 the hardware address of a function managed
1558  *			 by the devlink port.
1559  * @port_fn_hw_addr_set: Callback used to set port function's hardware address.
1560  *			 Should be used by device drivers to set the hardware
1561  *			 address of a function managed by the devlink port.
1562  * @port_fn_roce_get: Callback used to get port function's RoCE capability.
1563  *		      Should be used by device drivers to report
1564  *		      the current state of RoCE capability of a function
1565  *		      managed by the devlink port.
1566  * @port_fn_roce_set: Callback used to set port function's RoCE capability.
1567  *		      Should be used by device drivers to enable/disable
1568  *		      RoCE capability of a function managed
1569  *		      by the devlink port.
1570  * @port_fn_migratable_get: Callback used to get port function's migratable
1571  *			    capability. Should be used by device drivers
1572  *			    to report the current state of migratable capability
1573  *			    of a function managed by the devlink port.
1574  * @port_fn_migratable_set: Callback used to set port function's migratable
1575  *			    capability. Should be used by device drivers
1576  *			    to enable/disable migratable capability of
1577  *			    a function managed by the devlink port.
1578  * @port_fn_state_get: Callback used to get port function's state.
1579  *		       Should be used by device drivers to report
1580  *		       the current admin and operational state of a
1581  *		       function managed by the devlink port.
1582  * @port_fn_state_set: Callback used to get port function's state.
1583  *		       Should be used by device drivers set
1584  *		       the admin state of a function managed
1585  *		       by the devlink port.
1586  * @port_fn_ipsec_crypto_get: Callback used to get port function's ipsec_crypto
1587  *			      capability. Should be used by device drivers
1588  *			      to report the current state of ipsec_crypto
1589  *			      capability of a function managed by the devlink
1590  *			      port.
1591  * @port_fn_ipsec_crypto_set: Callback used to set port function's ipsec_crypto
1592  *			      capability. Should be used by device drivers to
1593  *			      enable/disable ipsec_crypto capability of a
1594  *			      function managed by the devlink port.
1595  * @port_fn_ipsec_packet_get: Callback used to get port function's ipsec_packet
1596  *			      capability. Should be used by device drivers
1597  *			      to report the current state of ipsec_packet
1598  *			      capability of a function managed by the devlink
1599  *			      port.
1600  * @port_fn_ipsec_packet_set: Callback used to set port function's ipsec_packet
1601  *			      capability. Should be used by device drivers to
1602  *			      enable/disable ipsec_packet capability of a
1603  *			      function managed by the devlink port.
1604  *
1605  * Note: Driver should return -EOPNOTSUPP if it doesn't support
1606  * port function (@port_fn_*) handling for a particular port.
1607  */
1608 struct devlink_port_ops {
1609 	int (*port_split)(struct devlink *devlink, struct devlink_port *port,
1610 			  unsigned int count, struct netlink_ext_ack *extack);
1611 	int (*port_unsplit)(struct devlink *devlink, struct devlink_port *port,
1612 			    struct netlink_ext_ack *extack);
1613 	int (*port_type_set)(struct devlink_port *devlink_port,
1614 			     enum devlink_port_type port_type);
1615 	int (*port_del)(struct devlink *devlink, struct devlink_port *port,
1616 			struct netlink_ext_ack *extack);
1617 	int (*port_fn_hw_addr_get)(struct devlink_port *port, u8 *hw_addr,
1618 				   int *hw_addr_len,
1619 				   struct netlink_ext_ack *extack);
1620 	int (*port_fn_hw_addr_set)(struct devlink_port *port,
1621 				   const u8 *hw_addr, int hw_addr_len,
1622 				   struct netlink_ext_ack *extack);
1623 	int (*port_fn_roce_get)(struct devlink_port *devlink_port,
1624 				bool *is_enable,
1625 				struct netlink_ext_ack *extack);
1626 	int (*port_fn_roce_set)(struct devlink_port *devlink_port,
1627 				bool enable, struct netlink_ext_ack *extack);
1628 	int (*port_fn_migratable_get)(struct devlink_port *devlink_port,
1629 				      bool *is_enable,
1630 				      struct netlink_ext_ack *extack);
1631 	int (*port_fn_migratable_set)(struct devlink_port *devlink_port,
1632 				      bool enable,
1633 				      struct netlink_ext_ack *extack);
1634 	int (*port_fn_state_get)(struct devlink_port *port,
1635 				 enum devlink_port_fn_state *state,
1636 				 enum devlink_port_fn_opstate *opstate,
1637 				 struct netlink_ext_ack *extack);
1638 	int (*port_fn_state_set)(struct devlink_port *port,
1639 				 enum devlink_port_fn_state state,
1640 				 struct netlink_ext_ack *extack);
1641 	int (*port_fn_ipsec_crypto_get)(struct devlink_port *devlink_port,
1642 					bool *is_enable,
1643 					struct netlink_ext_ack *extack);
1644 	int (*port_fn_ipsec_crypto_set)(struct devlink_port *devlink_port,
1645 					bool enable,
1646 					struct netlink_ext_ack *extack);
1647 	int (*port_fn_ipsec_packet_get)(struct devlink_port *devlink_port,
1648 					bool *is_enable,
1649 					struct netlink_ext_ack *extack);
1650 	int (*port_fn_ipsec_packet_set)(struct devlink_port *devlink_port,
1651 					bool enable,
1652 					struct netlink_ext_ack *extack);
1653 };
1654 
1655 void devlink_port_init(struct devlink *devlink,
1656 		       struct devlink_port *devlink_port);
1657 void devlink_port_fini(struct devlink_port *devlink_port);
1658 
1659 int devl_port_register_with_ops(struct devlink *devlink,
1660 				struct devlink_port *devlink_port,
1661 				unsigned int port_index,
1662 				const struct devlink_port_ops *ops);
1663 
devl_port_register(struct devlink * devlink,struct devlink_port * devlink_port,unsigned int port_index)1664 static inline int devl_port_register(struct devlink *devlink,
1665 				     struct devlink_port *devlink_port,
1666 				     unsigned int port_index)
1667 {
1668 	return devl_port_register_with_ops(devlink, devlink_port,
1669 					   port_index, NULL);
1670 }
1671 
1672 int devlink_port_register_with_ops(struct devlink *devlink,
1673 				   struct devlink_port *devlink_port,
1674 				   unsigned int port_index,
1675 				   const struct devlink_port_ops *ops);
1676 
devlink_port_register(struct devlink * devlink,struct devlink_port * devlink_port,unsigned int port_index)1677 static inline int devlink_port_register(struct devlink *devlink,
1678 					struct devlink_port *devlink_port,
1679 					unsigned int port_index)
1680 {
1681 	return devlink_port_register_with_ops(devlink, devlink_port,
1682 					      port_index, NULL);
1683 }
1684 
1685 void devl_port_unregister(struct devlink_port *devlink_port);
1686 void devlink_port_unregister(struct devlink_port *devlink_port);
1687 void devlink_port_type_eth_set(struct devlink_port *devlink_port);
1688 void devlink_port_type_ib_set(struct devlink_port *devlink_port,
1689 			      struct ib_device *ibdev);
1690 void devlink_port_type_clear(struct devlink_port *devlink_port);
1691 void devlink_port_attrs_set(struct devlink_port *devlink_port,
1692 			    struct devlink_port_attrs *devlink_port_attrs);
1693 void devlink_port_attrs_pci_pf_set(struct devlink_port *devlink_port, u32 controller,
1694 				   u16 pf, bool external);
1695 void devlink_port_attrs_pci_vf_set(struct devlink_port *devlink_port, u32 controller,
1696 				   u16 pf, u16 vf, bool external);
1697 void devlink_port_attrs_pci_sf_set(struct devlink_port *devlink_port,
1698 				   u32 controller, u16 pf, u32 sf,
1699 				   bool external);
1700 struct devlink_rate *
1701 devl_rate_node_create(struct devlink *devlink, void *priv, char *node_name,
1702 		      struct devlink_rate *parent);
1703 int
1704 devl_rate_leaf_create(struct devlink_port *devlink_port, void *priv,
1705 		      struct devlink_rate *parent);
1706 void devl_rate_leaf_destroy(struct devlink_port *devlink_port);
1707 void devl_rate_nodes_destroy(struct devlink *devlink);
1708 void devlink_port_linecard_set(struct devlink_port *devlink_port,
1709 			       struct devlink_linecard *linecard);
1710 struct devlink_linecard *
1711 devl_linecard_create(struct devlink *devlink, unsigned int linecard_index,
1712 		     const struct devlink_linecard_ops *ops, void *priv);
1713 void devl_linecard_destroy(struct devlink_linecard *linecard);
1714 void devlink_linecard_provision_set(struct devlink_linecard *linecard,
1715 				    const char *type);
1716 void devlink_linecard_provision_clear(struct devlink_linecard *linecard);
1717 void devlink_linecard_provision_fail(struct devlink_linecard *linecard);
1718 void devlink_linecard_activate(struct devlink_linecard *linecard);
1719 void devlink_linecard_deactivate(struct devlink_linecard *linecard);
1720 void devlink_linecard_nested_dl_set(struct devlink_linecard *linecard,
1721 				    struct devlink *nested_devlink);
1722 int devl_sb_register(struct devlink *devlink, unsigned int sb_index,
1723 		     u32 size, u16 ingress_pools_count,
1724 		     u16 egress_pools_count, u16 ingress_tc_count,
1725 		     u16 egress_tc_count);
1726 int devlink_sb_register(struct devlink *devlink, unsigned int sb_index,
1727 			u32 size, u16 ingress_pools_count,
1728 			u16 egress_pools_count, u16 ingress_tc_count,
1729 			u16 egress_tc_count);
1730 void devl_sb_unregister(struct devlink *devlink, unsigned int sb_index);
1731 void devlink_sb_unregister(struct devlink *devlink, unsigned int sb_index);
1732 int devl_dpipe_table_register(struct devlink *devlink,
1733 			      const char *table_name,
1734 			      struct devlink_dpipe_table_ops *table_ops,
1735 			      void *priv, bool counter_control_extern);
1736 void devl_dpipe_table_unregister(struct devlink *devlink,
1737 				 const char *table_name);
1738 void devl_dpipe_headers_register(struct devlink *devlink,
1739 				 struct devlink_dpipe_headers *dpipe_headers);
1740 void devl_dpipe_headers_unregister(struct devlink *devlink);
1741 bool devlink_dpipe_table_counter_enabled(struct devlink *devlink,
1742 					 const char *table_name);
1743 int devlink_dpipe_entry_ctx_prepare(struct devlink_dpipe_dump_ctx *dump_ctx);
1744 int devlink_dpipe_entry_ctx_append(struct devlink_dpipe_dump_ctx *dump_ctx,
1745 				   struct devlink_dpipe_entry *entry);
1746 int devlink_dpipe_entry_ctx_close(struct devlink_dpipe_dump_ctx *dump_ctx);
1747 void devlink_dpipe_entry_clear(struct devlink_dpipe_entry *entry);
1748 int devlink_dpipe_action_put(struct sk_buff *skb,
1749 			     struct devlink_dpipe_action *action);
1750 int devlink_dpipe_match_put(struct sk_buff *skb,
1751 			    struct devlink_dpipe_match *match);
1752 extern struct devlink_dpipe_header devlink_dpipe_header_ethernet;
1753 extern struct devlink_dpipe_header devlink_dpipe_header_ipv4;
1754 extern struct devlink_dpipe_header devlink_dpipe_header_ipv6;
1755 
1756 int devl_resource_register(struct devlink *devlink,
1757 			   const char *resource_name,
1758 			   u64 resource_size,
1759 			   u64 resource_id,
1760 			   u64 parent_resource_id,
1761 			   const struct devlink_resource_size_params *size_params);
1762 int devlink_resource_register(struct devlink *devlink,
1763 			      const char *resource_name,
1764 			      u64 resource_size,
1765 			      u64 resource_id,
1766 			      u64 parent_resource_id,
1767 			      const struct devlink_resource_size_params *size_params);
1768 void devl_resources_unregister(struct devlink *devlink);
1769 void devlink_resources_unregister(struct devlink *devlink);
1770 int devl_resource_size_get(struct devlink *devlink,
1771 			   u64 resource_id,
1772 			   u64 *p_resource_size);
1773 int devl_dpipe_table_resource_set(struct devlink *devlink,
1774 				  const char *table_name, u64 resource_id,
1775 				  u64 resource_units);
1776 void devl_resource_occ_get_register(struct devlink *devlink,
1777 				    u64 resource_id,
1778 				    devlink_resource_occ_get_t *occ_get,
1779 				    void *occ_get_priv);
1780 void devlink_resource_occ_get_register(struct devlink *devlink,
1781 				       u64 resource_id,
1782 				       devlink_resource_occ_get_t *occ_get,
1783 				       void *occ_get_priv);
1784 void devl_resource_occ_get_unregister(struct devlink *devlink,
1785 				      u64 resource_id);
1786 
1787 void devlink_resource_occ_get_unregister(struct devlink *devlink,
1788 					 u64 resource_id);
1789 int devl_params_register(struct devlink *devlink,
1790 			 const struct devlink_param *params,
1791 			 size_t params_count);
1792 int devlink_params_register(struct devlink *devlink,
1793 			    const struct devlink_param *params,
1794 			    size_t params_count);
1795 void devl_params_unregister(struct devlink *devlink,
1796 			    const struct devlink_param *params,
1797 			    size_t params_count);
1798 void devlink_params_unregister(struct devlink *devlink,
1799 			       const struct devlink_param *params,
1800 			       size_t params_count);
1801 int devl_param_driverinit_value_get(struct devlink *devlink, u32 param_id,
1802 				    union devlink_param_value *val);
1803 void devl_param_driverinit_value_set(struct devlink *devlink, u32 param_id,
1804 				     union devlink_param_value init_val);
1805 void devl_param_value_changed(struct devlink *devlink, u32 param_id);
1806 struct devlink_region *devl_region_create(struct devlink *devlink,
1807 					  const struct devlink_region_ops *ops,
1808 					  u32 region_max_snapshots,
1809 					  u64 region_size);
1810 struct devlink_region *
1811 devlink_region_create(struct devlink *devlink,
1812 		      const struct devlink_region_ops *ops,
1813 		      u32 region_max_snapshots, u64 region_size);
1814 struct devlink_region *
1815 devlink_port_region_create(struct devlink_port *port,
1816 			   const struct devlink_port_region_ops *ops,
1817 			   u32 region_max_snapshots, u64 region_size);
1818 void devl_region_destroy(struct devlink_region *region);
1819 void devlink_region_destroy(struct devlink_region *region);
1820 int devlink_region_snapshot_id_get(struct devlink *devlink, u32 *id);
1821 void devlink_region_snapshot_id_put(struct devlink *devlink, u32 id);
1822 int devlink_region_snapshot_create(struct devlink_region *region,
1823 				   u8 *data, u32 snapshot_id);
1824 int devlink_info_serial_number_put(struct devlink_info_req *req,
1825 				   const char *sn);
1826 int devlink_info_board_serial_number_put(struct devlink_info_req *req,
1827 					 const char *bsn);
1828 
1829 enum devlink_info_version_type {
1830 	DEVLINK_INFO_VERSION_TYPE_NONE,
1831 	DEVLINK_INFO_VERSION_TYPE_COMPONENT, /* May be used as flash update
1832 					      * component by name.
1833 					      */
1834 };
1835 
1836 int devlink_info_version_fixed_put(struct devlink_info_req *req,
1837 				   const char *version_name,
1838 				   const char *version_value);
1839 int devlink_info_version_stored_put(struct devlink_info_req *req,
1840 				    const char *version_name,
1841 				    const char *version_value);
1842 int devlink_info_version_stored_put_ext(struct devlink_info_req *req,
1843 					const char *version_name,
1844 					const char *version_value,
1845 					enum devlink_info_version_type version_type);
1846 int devlink_info_version_running_put(struct devlink_info_req *req,
1847 				     const char *version_name,
1848 				     const char *version_value);
1849 int devlink_info_version_running_put_ext(struct devlink_info_req *req,
1850 					 const char *version_name,
1851 					 const char *version_value,
1852 					 enum devlink_info_version_type version_type);
1853 
1854 int devlink_fmsg_obj_nest_start(struct devlink_fmsg *fmsg);
1855 int devlink_fmsg_obj_nest_end(struct devlink_fmsg *fmsg);
1856 
1857 int devlink_fmsg_pair_nest_start(struct devlink_fmsg *fmsg, const char *name);
1858 int devlink_fmsg_pair_nest_end(struct devlink_fmsg *fmsg);
1859 
1860 int devlink_fmsg_arr_pair_nest_start(struct devlink_fmsg *fmsg,
1861 				     const char *name);
1862 int devlink_fmsg_arr_pair_nest_end(struct devlink_fmsg *fmsg);
1863 int devlink_fmsg_binary_pair_nest_start(struct devlink_fmsg *fmsg,
1864 					const char *name);
1865 int devlink_fmsg_binary_pair_nest_end(struct devlink_fmsg *fmsg);
1866 
1867 int devlink_fmsg_u32_put(struct devlink_fmsg *fmsg, u32 value);
1868 int devlink_fmsg_string_put(struct devlink_fmsg *fmsg, const char *value);
1869 int devlink_fmsg_binary_put(struct devlink_fmsg *fmsg, const void *value,
1870 			    u16 value_len);
1871 
1872 int devlink_fmsg_bool_pair_put(struct devlink_fmsg *fmsg, const char *name,
1873 			       bool value);
1874 int devlink_fmsg_u8_pair_put(struct devlink_fmsg *fmsg, const char *name,
1875 			     u8 value);
1876 int devlink_fmsg_u32_pair_put(struct devlink_fmsg *fmsg, const char *name,
1877 			      u32 value);
1878 int devlink_fmsg_u64_pair_put(struct devlink_fmsg *fmsg, const char *name,
1879 			      u64 value);
1880 int devlink_fmsg_string_pair_put(struct devlink_fmsg *fmsg, const char *name,
1881 				 const char *value);
1882 int devlink_fmsg_binary_pair_put(struct devlink_fmsg *fmsg, const char *name,
1883 				 const void *value, u32 value_len);
1884 
1885 struct devlink_health_reporter *
1886 devl_port_health_reporter_create(struct devlink_port *port,
1887 				 const struct devlink_health_reporter_ops *ops,
1888 				 u64 graceful_period, void *priv);
1889 
1890 struct devlink_health_reporter *
1891 devlink_port_health_reporter_create(struct devlink_port *port,
1892 				    const struct devlink_health_reporter_ops *ops,
1893 				    u64 graceful_period, void *priv);
1894 
1895 struct devlink_health_reporter *
1896 devl_health_reporter_create(struct devlink *devlink,
1897 			    const struct devlink_health_reporter_ops *ops,
1898 			    u64 graceful_period, void *priv);
1899 
1900 struct devlink_health_reporter *
1901 devlink_health_reporter_create(struct devlink *devlink,
1902 			       const struct devlink_health_reporter_ops *ops,
1903 			       u64 graceful_period, void *priv);
1904 
1905 void
1906 devl_health_reporter_destroy(struct devlink_health_reporter *reporter);
1907 
1908 void
1909 devlink_health_reporter_destroy(struct devlink_health_reporter *reporter);
1910 
1911 void *
1912 devlink_health_reporter_priv(struct devlink_health_reporter *reporter);
1913 int devlink_health_report(struct devlink_health_reporter *reporter,
1914 			  const char *msg, void *priv_ctx);
1915 void
1916 devlink_health_reporter_state_update(struct devlink_health_reporter *reporter,
1917 				     enum devlink_health_reporter_state state);
1918 void
1919 devlink_health_reporter_recovery_done(struct devlink_health_reporter *reporter);
1920 
1921 bool devlink_is_reload_failed(const struct devlink *devlink);
1922 void devlink_remote_reload_actions_performed(struct devlink *devlink,
1923 					     enum devlink_reload_limit limit,
1924 					     u32 actions_performed);
1925 
1926 void devlink_flash_update_status_notify(struct devlink *devlink,
1927 					const char *status_msg,
1928 					const char *component,
1929 					unsigned long done,
1930 					unsigned long total);
1931 void devlink_flash_update_timeout_notify(struct devlink *devlink,
1932 					 const char *status_msg,
1933 					 const char *component,
1934 					 unsigned long timeout);
1935 
1936 int devl_traps_register(struct devlink *devlink,
1937 			const struct devlink_trap *traps,
1938 			size_t traps_count, void *priv);
1939 int devlink_traps_register(struct devlink *devlink,
1940 			   const struct devlink_trap *traps,
1941 			   size_t traps_count, void *priv);
1942 void devl_traps_unregister(struct devlink *devlink,
1943 			   const struct devlink_trap *traps,
1944 			   size_t traps_count);
1945 void devlink_traps_unregister(struct devlink *devlink,
1946 			      const struct devlink_trap *traps,
1947 			      size_t traps_count);
1948 void devlink_trap_report(struct devlink *devlink, struct sk_buff *skb,
1949 			 void *trap_ctx, struct devlink_port *in_devlink_port,
1950 			 const struct flow_action_cookie *fa_cookie);
1951 void *devlink_trap_ctx_priv(void *trap_ctx);
1952 int devl_trap_groups_register(struct devlink *devlink,
1953 			      const struct devlink_trap_group *groups,
1954 			      size_t groups_count);
1955 int devlink_trap_groups_register(struct devlink *devlink,
1956 				 const struct devlink_trap_group *groups,
1957 				 size_t groups_count);
1958 void devl_trap_groups_unregister(struct devlink *devlink,
1959 				 const struct devlink_trap_group *groups,
1960 				 size_t groups_count);
1961 void devlink_trap_groups_unregister(struct devlink *devlink,
1962 				    const struct devlink_trap_group *groups,
1963 				    size_t groups_count);
1964 int
1965 devl_trap_policers_register(struct devlink *devlink,
1966 			    const struct devlink_trap_policer *policers,
1967 			    size_t policers_count);
1968 void
1969 devl_trap_policers_unregister(struct devlink *devlink,
1970 			      const struct devlink_trap_policer *policers,
1971 			      size_t policers_count);
1972 
1973 #if IS_ENABLED(CONFIG_NET_DEVLINK)
1974 
1975 struct devlink *__must_check devlink_try_get(struct devlink *devlink);
1976 void devlink_put(struct devlink *devlink);
1977 
1978 void devlink_compat_running_version(struct devlink *devlink,
1979 				    char *buf, size_t len);
1980 int devlink_compat_flash_update(struct devlink *devlink, const char *file_name);
1981 int devlink_compat_phys_port_name_get(struct net_device *dev,
1982 				      char *name, size_t len);
1983 int devlink_compat_switch_id_get(struct net_device *dev,
1984 				 struct netdev_phys_item_id *ppid);
1985 
1986 int devlink_nl_port_handle_fill(struct sk_buff *msg, struct devlink_port *devlink_port);
1987 size_t devlink_nl_port_handle_size(struct devlink_port *devlink_port);
1988 
1989 #else
1990 
devlink_try_get(struct devlink * devlink)1991 static inline struct devlink *devlink_try_get(struct devlink *devlink)
1992 {
1993 	return NULL;
1994 }
1995 
devlink_put(struct devlink * devlink)1996 static inline void devlink_put(struct devlink *devlink)
1997 {
1998 }
1999 
2000 static inline void
devlink_compat_running_version(struct devlink * devlink,char * buf,size_t len)2001 devlink_compat_running_version(struct devlink *devlink, char *buf, size_t len)
2002 {
2003 }
2004 
2005 static inline int
devlink_compat_flash_update(struct devlink * devlink,const char * file_name)2006 devlink_compat_flash_update(struct devlink *devlink, const char *file_name)
2007 {
2008 	return -EOPNOTSUPP;
2009 }
2010 
2011 static inline int
devlink_compat_phys_port_name_get(struct net_device * dev,char * name,size_t len)2012 devlink_compat_phys_port_name_get(struct net_device *dev,
2013 				  char *name, size_t len)
2014 {
2015 	return -EOPNOTSUPP;
2016 }
2017 
2018 static inline int
devlink_compat_switch_id_get(struct net_device * dev,struct netdev_phys_item_id * ppid)2019 devlink_compat_switch_id_get(struct net_device *dev,
2020 			     struct netdev_phys_item_id *ppid)
2021 {
2022 	return -EOPNOTSUPP;
2023 }
2024 
2025 static inline int
devlink_nl_port_handle_fill(struct sk_buff * msg,struct devlink_port * devlink_port)2026 devlink_nl_port_handle_fill(struct sk_buff *msg, struct devlink_port *devlink_port)
2027 {
2028 	return 0;
2029 }
2030 
devlink_nl_port_handle_size(struct devlink_port * devlink_port)2031 static inline size_t devlink_nl_port_handle_size(struct devlink_port *devlink_port)
2032 {
2033 	return 0;
2034 }
2035 
2036 #endif
2037 
2038 #endif /* _NET_DEVLINK_H_ */
2039