xref: /linux/include/net/devlink.h (revision 63467137ecc0ff6f804d53903ad87a2f0397a18b)
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 function number for the devlink port instance
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 function number for the devlink port instance
51  * @vf: associated PCI VF number of a PF for the devlink port instance;
52  *	VF number starts from 0 for the first PCI virtual function
53  * @external: when set, indicates if a port is for an external controller
54  */
55 struct devlink_port_pci_vf_attrs {
56 	u32 controller;
57 	u16 pf;
58 	u16 vf;
59 	u8 external:1;
60 };
61 
62 /**
63  * struct devlink_port_pci_sf_attrs - devlink port's PCI SF attributes
64  * @controller: Associated controller number
65  * @sf: associated SF number of a PF for the devlink port instance
66  * @pf: associated PCI function number for the devlink port instance
67  * @external: when set, indicates if a port is for an external controller
68  */
69 struct devlink_port_pci_sf_attrs {
70 	u32 controller;
71 	u32 sf;
72 	u16 pf;
73 	u8 external:1;
74 };
75 
76 /**
77  * struct devlink_port_attrs - devlink port object
78  * @flavour: flavour of the port
79  * @split: indicates if this is split port
80  * @splittable: indicates if the port can be split.
81  * @no_phys_port_name: skip automatic phys_port_name generation; for
82  *		       compatibility only, newly added driver/port instance
83  *		       should never set this.
84  * @lanes: maximum number of lanes the port supports. 0 value is not passed to netlink.
85  * @switch_id: if the port is part of switch, this is buffer with ID, otherwise this is NULL
86  * @phys: physical port attributes
87  * @pci_pf: PCI PF port attributes
88  * @pci_vf: PCI VF port attributes
89  * @pci_sf: PCI SF port attributes
90  */
91 struct devlink_port_attrs {
92 	u8 split:1,
93 	   splittable:1,
94 	   no_phys_port_name:1;
95 	u32 lanes;
96 	enum devlink_port_flavour flavour;
97 	struct netdev_phys_item_id switch_id;
98 	union {
99 		struct devlink_port_phys_attrs phys;
100 		struct devlink_port_pci_pf_attrs pci_pf;
101 		struct devlink_port_pci_vf_attrs pci_vf;
102 		struct devlink_port_pci_sf_attrs pci_sf;
103 	};
104 };
105 
106 struct devlink_rate {
107 	struct list_head list;
108 	enum devlink_rate_type type;
109 	struct devlink *devlink;
110 	void *priv;
111 	u64 tx_share;
112 	u64 tx_max;
113 
114 	struct devlink_rate *parent;
115 	union {
116 		struct devlink_port *devlink_port;
117 		struct {
118 			char *name;
119 			refcount_t refcnt;
120 		};
121 	};
122 
123 	u32 tx_priority;
124 	u32 tx_weight;
125 
126 	u32 tc_bw[DEVLINK_RATE_TCS_MAX];
127 };
128 
129 struct devlink_port {
130 	struct list_head list;
131 	struct list_head region_list;
132 	struct devlink *devlink;
133 	const struct devlink_port_ops *ops;
134 	unsigned int index;
135 	spinlock_t type_lock; /* Protects type and type_eth/ib
136 			       * structures consistency.
137 			       */
138 	enum devlink_port_type type;
139 	enum devlink_port_type desired_type;
140 	union {
141 		struct {
142 			struct net_device *netdev;
143 			int ifindex;
144 			char ifname[IFNAMSIZ];
145 		} type_eth;
146 		struct {
147 			struct ib_device *ibdev;
148 		} type_ib;
149 	};
150 	struct devlink_port_attrs attrs;
151 	u8 attrs_set:1,
152 	   switch_port:1,
153 	   registered:1,
154 	   initialized:1;
155 	struct delayed_work type_warn_dw;
156 	struct list_head reporter_list;
157 
158 	struct devlink_rate *devlink_rate;
159 	struct devlink_linecard *linecard;
160 	u32 rel_index;
161 };
162 
163 struct devlink_port_new_attrs {
164 	enum devlink_port_flavour flavour;
165 	unsigned int port_index;
166 	u32 controller;
167 	u32 sfnum;
168 	u16 pfnum;
169 	u8 port_index_valid:1,
170 	   controller_valid:1,
171 	   sfnum_valid:1;
172 };
173 
174 /**
175  * struct devlink_linecard_ops - Linecard operations
176  * @provision: callback to provision the linecard slot with certain
177  *	       type of linecard. As a result of this operation,
178  *	       driver is expected to eventually (could be after
179  *	       the function call returns) call one of:
180  *	       devlink_linecard_provision_set()
181  *	       devlink_linecard_provision_fail()
182  * @unprovision: callback to unprovision the linecard slot. As a result
183  *		 of this operation, driver is expected to eventually
184  *		 (could be after the function call returns) call
185  *	         devlink_linecard_provision_clear()
186  *	         devlink_linecard_provision_fail()
187  * @same_provision: callback to ask the driver if linecard is already
188  *                  provisioned in the same way user asks this linecard to be
189  *                  provisioned.
190  * @types_count: callback to get number of supported types
191  * @types_get: callback to get next type in list
192  */
193 struct devlink_linecard_ops {
194 	int (*provision)(struct devlink_linecard *linecard, void *priv,
195 			 const char *type, const void *type_priv,
196 			 struct netlink_ext_ack *extack);
197 	int (*unprovision)(struct devlink_linecard *linecard, void *priv,
198 			   struct netlink_ext_ack *extack);
199 	bool (*same_provision)(struct devlink_linecard *linecard, void *priv,
200 			       const char *type, const void *type_priv);
201 	unsigned int (*types_count)(struct devlink_linecard *linecard,
202 				    void *priv);
203 	void (*types_get)(struct devlink_linecard *linecard,
204 			  void *priv, unsigned int index, const char **type,
205 			  const void **type_priv);
206 };
207 
208 struct devlink_sb_pool_info {
209 	enum devlink_sb_pool_type pool_type;
210 	u32 size;
211 	enum devlink_sb_threshold_type threshold_type;
212 	u32 cell_size;
213 };
214 
215 /**
216  * struct devlink_dpipe_field - dpipe field object
217  * @name: field name
218  * @id: index inside the headers field array
219  * @bitwidth: bitwidth
220  * @mapping_type: mapping type
221  */
222 struct devlink_dpipe_field {
223 	const char *name;
224 	unsigned int id;
225 	unsigned int bitwidth;
226 	enum devlink_dpipe_field_mapping_type mapping_type;
227 };
228 
229 /**
230  * struct devlink_dpipe_header - dpipe header object
231  * @name: header name
232  * @id: index, global/local determined by global bit
233  * @fields: fields
234  * @fields_count: number of fields
235  * @global: indicates if header is shared like most protocol header
236  *	    or driver specific
237  */
238 struct devlink_dpipe_header {
239 	const char *name;
240 	unsigned int id;
241 	struct devlink_dpipe_field *fields;
242 	unsigned int fields_count;
243 	bool global;
244 };
245 
246 /**
247  * struct devlink_dpipe_match - represents match operation
248  * @type: type of match
249  * @header_index: header index (packets can have several headers of same
250  *		  type like in case of tunnels)
251  * @header: header
252  * @field_id: field index
253  */
254 struct devlink_dpipe_match {
255 	enum devlink_dpipe_match_type type;
256 	unsigned int header_index;
257 	struct devlink_dpipe_header *header;
258 	unsigned int field_id;
259 };
260 
261 /**
262  * struct devlink_dpipe_action - represents action operation
263  * @type: type of action
264  * @header_index: header index (packets can have several headers of same
265  *		  type like in case of tunnels)
266  * @header: header
267  * @field_id: field index
268  */
269 struct devlink_dpipe_action {
270 	enum devlink_dpipe_action_type type;
271 	unsigned int header_index;
272 	struct devlink_dpipe_header *header;
273 	unsigned int field_id;
274 };
275 
276 /**
277  * struct devlink_dpipe_value - represents value of match/action
278  * @action: action
279  * @match: match
280  * @mapping_value: in case the field has some mapping this value
281  *                 specified the mapping value
282  * @mapping_valid: specify if mapping value is valid
283  * @value_size: value size
284  * @value: value
285  * @mask: bit mask
286  */
287 struct devlink_dpipe_value {
288 	union {
289 		struct devlink_dpipe_action *action;
290 		struct devlink_dpipe_match *match;
291 	};
292 	unsigned int mapping_value;
293 	bool mapping_valid;
294 	unsigned int value_size;
295 	void *value;
296 	void *mask;
297 };
298 
299 /**
300  * struct devlink_dpipe_entry - table entry object
301  * @index: index of the entry in the table
302  * @match_values: match values
303  * @match_values_count: count of matches tuples
304  * @action_values: actions values
305  * @action_values_count: count of actions values
306  * @counter: value of counter
307  * @counter_valid: Specify if value is valid from hardware
308  */
309 struct devlink_dpipe_entry {
310 	u64 index;
311 	struct devlink_dpipe_value *match_values;
312 	unsigned int match_values_count;
313 	struct devlink_dpipe_value *action_values;
314 	unsigned int action_values_count;
315 	u64 counter;
316 	bool counter_valid;
317 };
318 
319 /**
320  * struct devlink_dpipe_dump_ctx - context provided to driver in order
321  *				   to dump
322  * @info: info
323  * @cmd: devlink command
324  * @skb: skb
325  * @nest: top attribute
326  * @hdr: hdr
327  */
328 struct devlink_dpipe_dump_ctx {
329 	struct genl_info *info;
330 	enum devlink_command cmd;
331 	struct sk_buff *skb;
332 	struct nlattr *nest;
333 	void *hdr;
334 };
335 
336 struct devlink_dpipe_table_ops;
337 
338 /**
339  * struct devlink_dpipe_table - table object
340  * @priv: private
341  * @name: table name
342  * @counters_enabled: indicates if counters are active
343  * @counter_control_extern: indicates if counter control is in dpipe or
344  *			    external tool
345  * @resource_valid: Indicate that the resource id is valid
346  * @resource_id: relative resource this table is related to
347  * @resource_units: number of resource's unit consumed per table's entry
348  * @table_ops: table operations
349  * @rcu: rcu
350  */
351 struct devlink_dpipe_table {
352 	void *priv;
353 	/* private: */
354 	struct list_head list;
355 	/* public: */
356 	const char *name;
357 	bool counters_enabled;
358 	bool counter_control_extern;
359 	bool resource_valid;
360 	u64 resource_id;
361 	u64 resource_units;
362 	const struct devlink_dpipe_table_ops *table_ops;
363 	struct rcu_head rcu;
364 };
365 
366 /**
367  * struct devlink_dpipe_table_ops - dpipe_table ops
368  * @actions_dump: dumps all tables actions
369  * @matches_dump: dumps all tables matches
370  * @entries_dump: dumps all active entries in the table
371  * @counters_set_update:  when changing the counter status hardware sync
372  *			  maybe needed to allocate/free counter related
373  *			  resources
374  * @size_get: get size
375  */
376 struct devlink_dpipe_table_ops {
377 	int (*actions_dump)(void *priv, struct sk_buff *skb);
378 	int (*matches_dump)(void *priv, struct sk_buff *skb);
379 	int (*entries_dump)(void *priv, bool counters_enabled,
380 			    struct devlink_dpipe_dump_ctx *dump_ctx);
381 	int (*counters_set_update)(void *priv, bool enable);
382 	u64 (*size_get)(void *priv);
383 };
384 
385 /**
386  * struct devlink_dpipe_headers - dpipe headers
387  * @headers: header array can be shared (global bit) or driver specific
388  * @headers_count: count of headers
389  */
390 struct devlink_dpipe_headers {
391 	struct devlink_dpipe_header **headers;
392 	unsigned int headers_count;
393 };
394 
395 /**
396  * struct devlink_resource_size_params - resource's size parameters
397  * @size_min: minimum size which can be set
398  * @size_max: maximum size which can be set
399  * @size_granularity: size granularity
400  * @unit: resource's basic unit
401  */
402 struct devlink_resource_size_params {
403 	u64 size_min;
404 	u64 size_max;
405 	u64 size_granularity;
406 	enum devlink_resource_unit unit;
407 };
408 
409 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)410 devlink_resource_size_params_init(struct devlink_resource_size_params *size_params,
411 				  u64 size_min, u64 size_max,
412 				  u64 size_granularity,
413 				  enum devlink_resource_unit unit)
414 {
415 	size_params->size_min = size_min;
416 	size_params->size_max = size_max;
417 	size_params->size_granularity = size_granularity;
418 	size_params->unit = unit;
419 }
420 
421 typedef u64 devlink_resource_occ_get_t(void *priv);
422 
423 #define DEVLINK_RESOURCE_ID_PARENT_TOP 0
424 
425 #define DEVLINK_RESOURCE_GENERIC_NAME_PORTS "physical_ports"
426 
427 #define __DEVLINK_PARAM_MAX_STRING_VALUE 32
428 enum devlink_param_type {
429 	DEVLINK_PARAM_TYPE_U8 = DEVLINK_VAR_ATTR_TYPE_U8,
430 	DEVLINK_PARAM_TYPE_U16 = DEVLINK_VAR_ATTR_TYPE_U16,
431 	DEVLINK_PARAM_TYPE_U32 = DEVLINK_VAR_ATTR_TYPE_U32,
432 	DEVLINK_PARAM_TYPE_U64 = DEVLINK_VAR_ATTR_TYPE_U64,
433 	DEVLINK_PARAM_TYPE_STRING = DEVLINK_VAR_ATTR_TYPE_STRING,
434 	DEVLINK_PARAM_TYPE_BOOL = DEVLINK_VAR_ATTR_TYPE_FLAG,
435 };
436 
437 union devlink_param_value {
438 	u8 vu8;
439 	u16 vu16;
440 	u32 vu32;
441 	u64 vu64;
442 	char vstr[__DEVLINK_PARAM_MAX_STRING_VALUE];
443 	bool vbool;
444 };
445 
446 struct devlink_param_gset_ctx {
447 	union devlink_param_value val;
448 	enum devlink_param_cmode cmode;
449 };
450 
451 /**
452  * struct devlink_flash_notify - devlink dev flash notify data
453  * @status_msg: current status string
454  * @component: firmware component being updated
455  * @done: amount of work completed of total amount
456  * @total: amount of work expected to be done
457  * @timeout: expected max timeout in seconds
458  *
459  * These are values to be given to userland to be displayed in order
460  * to show current activity in a firmware update process.
461  */
462 struct devlink_flash_notify {
463 	const char *status_msg;
464 	const char *component;
465 	unsigned long done;
466 	unsigned long total;
467 	unsigned long timeout;
468 };
469 
470 /**
471  * struct devlink_param - devlink configuration parameter data
472  * @id: devlink parameter id number
473  * @name: name of the parameter
474  * @generic: indicates if the parameter is generic or driver specific
475  * @type: parameter type
476  * @supported_cmodes: bitmap of supported configuration modes
477  * @get: get parameter value, used for runtime and permanent
478  *       configuration modes
479  * @set: set parameter value, used for runtime and permanent
480  *       configuration modes
481  * @validate: validate input value is applicable (within value range, etc.)
482  *
483  * This struct should be used by the driver to fill the data for
484  * a parameter it registers.
485  */
486 struct devlink_param {
487 	u32 id;
488 	const char *name;
489 	bool generic;
490 	enum devlink_param_type type;
491 	unsigned long supported_cmodes;
492 	int (*get)(struct devlink *devlink, u32 id,
493 		   struct devlink_param_gset_ctx *ctx);
494 	int (*set)(struct devlink *devlink, u32 id,
495 		   struct devlink_param_gset_ctx *ctx,
496 		   struct netlink_ext_ack *extack);
497 	int (*validate)(struct devlink *devlink, u32 id,
498 			union devlink_param_value val,
499 			struct netlink_ext_ack *extack);
500 };
501 
502 struct devlink_param_item {
503 	struct list_head list;
504 	const struct devlink_param *param;
505 	union devlink_param_value driverinit_value;
506 	bool driverinit_value_valid;
507 	union devlink_param_value driverinit_value_new; /* Not reachable
508 							 * until reload.
509 							 */
510 	bool driverinit_value_new_valid;
511 };
512 
513 enum devlink_param_generic_id {
514 	DEVLINK_PARAM_GENERIC_ID_INT_ERR_RESET,
515 	DEVLINK_PARAM_GENERIC_ID_MAX_MACS,
516 	DEVLINK_PARAM_GENERIC_ID_ENABLE_SRIOV,
517 	DEVLINK_PARAM_GENERIC_ID_REGION_SNAPSHOT,
518 	DEVLINK_PARAM_GENERIC_ID_IGNORE_ARI,
519 	DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX,
520 	DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN,
521 	DEVLINK_PARAM_GENERIC_ID_FW_LOAD_POLICY,
522 	DEVLINK_PARAM_GENERIC_ID_RESET_DEV_ON_DRV_PROBE,
523 	DEVLINK_PARAM_GENERIC_ID_ENABLE_ROCE,
524 	DEVLINK_PARAM_GENERIC_ID_ENABLE_REMOTE_DEV_RESET,
525 	DEVLINK_PARAM_GENERIC_ID_ENABLE_ETH,
526 	DEVLINK_PARAM_GENERIC_ID_ENABLE_RDMA,
527 	DEVLINK_PARAM_GENERIC_ID_ENABLE_VNET,
528 	DEVLINK_PARAM_GENERIC_ID_ENABLE_IWARP,
529 	DEVLINK_PARAM_GENERIC_ID_IO_EQ_SIZE,
530 	DEVLINK_PARAM_GENERIC_ID_EVENT_EQ_SIZE,
531 	DEVLINK_PARAM_GENERIC_ID_ENABLE_PHC,
532 	DEVLINK_PARAM_GENERIC_ID_CLOCK_ID,
533 
534 	/* add new param generic ids above here*/
535 	__DEVLINK_PARAM_GENERIC_ID_MAX,
536 	DEVLINK_PARAM_GENERIC_ID_MAX = __DEVLINK_PARAM_GENERIC_ID_MAX - 1,
537 };
538 
539 #define DEVLINK_PARAM_GENERIC_INT_ERR_RESET_NAME "internal_error_reset"
540 #define DEVLINK_PARAM_GENERIC_INT_ERR_RESET_TYPE DEVLINK_PARAM_TYPE_BOOL
541 
542 #define DEVLINK_PARAM_GENERIC_MAX_MACS_NAME "max_macs"
543 #define DEVLINK_PARAM_GENERIC_MAX_MACS_TYPE DEVLINK_PARAM_TYPE_U32
544 
545 #define DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_NAME "enable_sriov"
546 #define DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_TYPE DEVLINK_PARAM_TYPE_BOOL
547 
548 #define DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_NAME "region_snapshot_enable"
549 #define DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_TYPE DEVLINK_PARAM_TYPE_BOOL
550 
551 #define DEVLINK_PARAM_GENERIC_IGNORE_ARI_NAME "ignore_ari"
552 #define DEVLINK_PARAM_GENERIC_IGNORE_ARI_TYPE DEVLINK_PARAM_TYPE_BOOL
553 
554 #define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MAX_NAME "msix_vec_per_pf_max"
555 #define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MAX_TYPE DEVLINK_PARAM_TYPE_U32
556 
557 #define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_NAME "msix_vec_per_pf_min"
558 #define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_TYPE DEVLINK_PARAM_TYPE_U32
559 
560 #define DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_NAME "fw_load_policy"
561 #define DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_TYPE DEVLINK_PARAM_TYPE_U8
562 
563 #define DEVLINK_PARAM_GENERIC_RESET_DEV_ON_DRV_PROBE_NAME \
564 	"reset_dev_on_drv_probe"
565 #define DEVLINK_PARAM_GENERIC_RESET_DEV_ON_DRV_PROBE_TYPE DEVLINK_PARAM_TYPE_U8
566 
567 #define DEVLINK_PARAM_GENERIC_ENABLE_ROCE_NAME "enable_roce"
568 #define DEVLINK_PARAM_GENERIC_ENABLE_ROCE_TYPE DEVLINK_PARAM_TYPE_BOOL
569 
570 #define DEVLINK_PARAM_GENERIC_ENABLE_REMOTE_DEV_RESET_NAME "enable_remote_dev_reset"
571 #define DEVLINK_PARAM_GENERIC_ENABLE_REMOTE_DEV_RESET_TYPE DEVLINK_PARAM_TYPE_BOOL
572 
573 #define DEVLINK_PARAM_GENERIC_ENABLE_ETH_NAME "enable_eth"
574 #define DEVLINK_PARAM_GENERIC_ENABLE_ETH_TYPE DEVLINK_PARAM_TYPE_BOOL
575 
576 #define DEVLINK_PARAM_GENERIC_ENABLE_RDMA_NAME "enable_rdma"
577 #define DEVLINK_PARAM_GENERIC_ENABLE_RDMA_TYPE DEVLINK_PARAM_TYPE_BOOL
578 
579 #define DEVLINK_PARAM_GENERIC_ENABLE_VNET_NAME "enable_vnet"
580 #define DEVLINK_PARAM_GENERIC_ENABLE_VNET_TYPE DEVLINK_PARAM_TYPE_BOOL
581 
582 #define DEVLINK_PARAM_GENERIC_ENABLE_IWARP_NAME "enable_iwarp"
583 #define DEVLINK_PARAM_GENERIC_ENABLE_IWARP_TYPE DEVLINK_PARAM_TYPE_BOOL
584 
585 #define DEVLINK_PARAM_GENERIC_IO_EQ_SIZE_NAME "io_eq_size"
586 #define DEVLINK_PARAM_GENERIC_IO_EQ_SIZE_TYPE DEVLINK_PARAM_TYPE_U32
587 
588 #define DEVLINK_PARAM_GENERIC_EVENT_EQ_SIZE_NAME "event_eq_size"
589 #define DEVLINK_PARAM_GENERIC_EVENT_EQ_SIZE_TYPE DEVLINK_PARAM_TYPE_U32
590 
591 #define DEVLINK_PARAM_GENERIC_ENABLE_PHC_NAME "enable_phc"
592 #define DEVLINK_PARAM_GENERIC_ENABLE_PHC_TYPE DEVLINK_PARAM_TYPE_BOOL
593 
594 #define DEVLINK_PARAM_GENERIC_CLOCK_ID_NAME "clock_id"
595 #define DEVLINK_PARAM_GENERIC_CLOCK_ID_TYPE DEVLINK_PARAM_TYPE_U64
596 
597 #define DEVLINK_PARAM_GENERIC(_id, _cmodes, _get, _set, _validate)	\
598 {									\
599 	.id = DEVLINK_PARAM_GENERIC_ID_##_id,				\
600 	.name = DEVLINK_PARAM_GENERIC_##_id##_NAME,			\
601 	.type = DEVLINK_PARAM_GENERIC_##_id##_TYPE,			\
602 	.generic = true,						\
603 	.supported_cmodes = _cmodes,					\
604 	.get = _get,							\
605 	.set = _set,							\
606 	.validate = _validate,						\
607 }
608 
609 #define DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes, _get, _set, _validate)	\
610 {									\
611 	.id = _id,							\
612 	.name = _name,							\
613 	.type = _type,							\
614 	.supported_cmodes = _cmodes,					\
615 	.get = _get,							\
616 	.set = _set,							\
617 	.validate = _validate,						\
618 }
619 
620 /* Identifier of board design */
621 #define DEVLINK_INFO_VERSION_GENERIC_BOARD_ID	"board.id"
622 /* Revision of board design */
623 #define DEVLINK_INFO_VERSION_GENERIC_BOARD_REV	"board.rev"
624 /* Maker of the board */
625 #define DEVLINK_INFO_VERSION_GENERIC_BOARD_MANUFACTURE	"board.manufacture"
626 /* Part number of the board and its components */
627 #define DEVLINK_INFO_VERSION_GENERIC_BOARD_PART_NUMBER	"board.part_number"
628 
629 /* Part number, identifier of asic design */
630 #define DEVLINK_INFO_VERSION_GENERIC_ASIC_ID	"asic.id"
631 /* Revision of asic design */
632 #define DEVLINK_INFO_VERSION_GENERIC_ASIC_REV	"asic.rev"
633 
634 /* Overall FW version */
635 #define DEVLINK_INFO_VERSION_GENERIC_FW		"fw"
636 /* Control processor FW version */
637 #define DEVLINK_INFO_VERSION_GENERIC_FW_MGMT	"fw.mgmt"
638 /* FW interface specification version */
639 #define DEVLINK_INFO_VERSION_GENERIC_FW_MGMT_API	"fw.mgmt.api"
640 /* Data path microcode controlling high-speed packet processing */
641 #define DEVLINK_INFO_VERSION_GENERIC_FW_APP	"fw.app"
642 /* UNDI software version */
643 #define DEVLINK_INFO_VERSION_GENERIC_FW_UNDI	"fw.undi"
644 /* NCSI support/handler version */
645 #define DEVLINK_INFO_VERSION_GENERIC_FW_NCSI	"fw.ncsi"
646 /* FW parameter set id */
647 #define DEVLINK_INFO_VERSION_GENERIC_FW_PSID	"fw.psid"
648 /* RoCE FW version */
649 #define DEVLINK_INFO_VERSION_GENERIC_FW_ROCE	"fw.roce"
650 /* Firmware bundle identifier */
651 #define DEVLINK_INFO_VERSION_GENERIC_FW_BUNDLE_ID	"fw.bundle_id"
652 /* Bootloader */
653 #define DEVLINK_INFO_VERSION_GENERIC_FW_BOOTLOADER	"fw.bootloader"
654 
655 /**
656  * struct devlink_flash_update_params - Flash Update parameters
657  * @fw: pointer to the firmware data to update from
658  * @component: the flash component to update
659  * @overwrite_mask: which types of flash update are supported (may be %0)
660  *
661  * With the exception of fw, drivers must opt-in to parameters by
662  * setting the appropriate bit in the supported_flash_update_params field in
663  * their devlink_ops structure.
664  */
665 struct devlink_flash_update_params {
666 	const struct firmware *fw;
667 	const char *component;
668 	u32 overwrite_mask;
669 };
670 
671 #define DEVLINK_SUPPORT_FLASH_UPDATE_OVERWRITE_MASK	BIT(0)
672 
673 struct devlink_region;
674 struct devlink_info_req;
675 
676 /**
677  * struct devlink_region_ops - Region operations
678  * @name: region name
679  * @destructor: callback used to free snapshot memory when deleting
680  * @snapshot: callback to request an immediate snapshot. On success,
681  *            the data variable must be updated to point to the snapshot data.
682  *            The function will be called while the devlink instance lock is
683  *            held.
684  * @read: callback to directly read a portion of the region. On success,
685  *        the data pointer will be updated with the contents of the
686  *        requested portion of the region. The function will be called
687  *        while the devlink instance lock is held.
688  * @priv: Pointer to driver private data for the region operation
689  */
690 struct devlink_region_ops {
691 	const char *name;
692 	void (*destructor)(const void *data);
693 	int (*snapshot)(struct devlink *devlink,
694 			const struct devlink_region_ops *ops,
695 			struct netlink_ext_ack *extack,
696 			u8 **data);
697 	int (*read)(struct devlink *devlink,
698 		    const struct devlink_region_ops *ops,
699 		    struct netlink_ext_ack *extack,
700 		    u64 offset, u32 size, u8 *data);
701 	void *priv;
702 };
703 
704 /**
705  * struct devlink_port_region_ops - Region operations for a port
706  * @name: region name
707  * @destructor: callback used to free snapshot memory when deleting
708  * @snapshot: callback to request an immediate snapshot. On success,
709  *            the data variable must be updated to point to the snapshot data.
710  *            The function will be called while the devlink instance lock is
711  *            held.
712  * @read: callback to directly read a portion of the region. On success,
713  *        the data pointer will be updated with the contents of the
714  *        requested portion of the region. The function will be called
715  *        while the devlink instance lock is held.
716  * @priv: Pointer to driver private data for the region operation
717  */
718 struct devlink_port_region_ops {
719 	const char *name;
720 	void (*destructor)(const void *data);
721 	int (*snapshot)(struct devlink_port *port,
722 			const struct devlink_port_region_ops *ops,
723 			struct netlink_ext_ack *extack,
724 			u8 **data);
725 	int (*read)(struct devlink_port *port,
726 		    const struct devlink_port_region_ops *ops,
727 		    struct netlink_ext_ack *extack,
728 		    u64 offset, u32 size, u8 *data);
729 	void *priv;
730 };
731 
732 struct devlink_fmsg;
733 struct devlink_health_reporter;
734 
735 enum devlink_health_reporter_state {
736 	DEVLINK_HEALTH_REPORTER_STATE_HEALTHY,
737 	DEVLINK_HEALTH_REPORTER_STATE_ERROR,
738 };
739 
740 /**
741  * struct devlink_health_reporter_ops - Reporter operations
742  * @name: reporter name
743  * @recover: callback to recover from reported error
744  *           if priv_ctx is NULL, run a full recover
745  * @dump: callback to dump an object
746  *        if priv_ctx is NULL, run a full dump
747  * @diagnose: callback to diagnose the current status
748  * @test: callback to trigger a test event
749  */
750 
751 struct devlink_health_reporter_ops {
752 	char *name;
753 	int (*recover)(struct devlink_health_reporter *reporter,
754 		       void *priv_ctx, struct netlink_ext_ack *extack);
755 	int (*dump)(struct devlink_health_reporter *reporter,
756 		    struct devlink_fmsg *fmsg, void *priv_ctx,
757 		    struct netlink_ext_ack *extack);
758 	int (*diagnose)(struct devlink_health_reporter *reporter,
759 			struct devlink_fmsg *fmsg,
760 			struct netlink_ext_ack *extack);
761 	int (*test)(struct devlink_health_reporter *reporter,
762 		    struct netlink_ext_ack *extack);
763 };
764 
765 /**
766  * struct devlink_trap_metadata - Packet trap metadata.
767  * @trap_name: Trap name.
768  * @trap_group_name: Trap group name.
769  * @input_dev: Input netdevice.
770  * @dev_tracker: refcount tracker for @input_dev.
771  * @fa_cookie: Flow action user cookie.
772  * @trap_type: Trap type.
773  */
774 struct devlink_trap_metadata {
775 	const char *trap_name;
776 	const char *trap_group_name;
777 
778 	struct net_device *input_dev;
779 	netdevice_tracker dev_tracker;
780 
781 	const struct flow_action_cookie *fa_cookie;
782 	enum devlink_trap_type trap_type;
783 };
784 
785 /**
786  * struct devlink_trap_policer - Immutable packet trap policer attributes.
787  * @id: Policer identifier.
788  * @init_rate: Initial rate in packets / sec.
789  * @init_burst: Initial burst size in packets.
790  * @max_rate: Maximum rate.
791  * @min_rate: Minimum rate.
792  * @max_burst: Maximum burst size.
793  * @min_burst: Minimum burst size.
794  *
795  * Describes immutable attributes of packet trap policers that drivers register
796  * with devlink.
797  */
798 struct devlink_trap_policer {
799 	u32 id;
800 	u64 init_rate;
801 	u64 init_burst;
802 	u64 max_rate;
803 	u64 min_rate;
804 	u64 max_burst;
805 	u64 min_burst;
806 };
807 
808 /**
809  * struct devlink_trap_group - Immutable packet trap group attributes.
810  * @name: Trap group name.
811  * @id: Trap group identifier.
812  * @generic: Whether the trap group is generic or not.
813  * @init_policer_id: Initial policer identifier.
814  *
815  * Describes immutable attributes of packet trap groups that drivers register
816  * with devlink.
817  */
818 struct devlink_trap_group {
819 	const char *name;
820 	u16 id;
821 	bool generic;
822 	u32 init_policer_id;
823 };
824 
825 #define DEVLINK_TRAP_METADATA_TYPE_F_IN_PORT	BIT(0)
826 #define DEVLINK_TRAP_METADATA_TYPE_F_FA_COOKIE	BIT(1)
827 
828 /**
829  * struct devlink_trap - Immutable packet trap attributes.
830  * @type: Trap type.
831  * @init_action: Initial trap action.
832  * @generic: Whether the trap is generic or not.
833  * @id: Trap identifier.
834  * @name: Trap name.
835  * @init_group_id: Initial group identifier.
836  * @metadata_cap: Metadata types that can be provided by the trap.
837  *
838  * Describes immutable attributes of packet traps that drivers register with
839  * devlink.
840  */
841 struct devlink_trap {
842 	enum devlink_trap_type type;
843 	enum devlink_trap_action init_action;
844 	bool generic;
845 	u16 id;
846 	const char *name;
847 	u16 init_group_id;
848 	u32 metadata_cap;
849 };
850 
851 /* All traps must be documented in
852  * Documentation/networking/devlink/devlink-trap.rst
853  */
854 enum devlink_trap_generic_id {
855 	DEVLINK_TRAP_GENERIC_ID_SMAC_MC,
856 	DEVLINK_TRAP_GENERIC_ID_VLAN_TAG_MISMATCH,
857 	DEVLINK_TRAP_GENERIC_ID_INGRESS_VLAN_FILTER,
858 	DEVLINK_TRAP_GENERIC_ID_INGRESS_STP_FILTER,
859 	DEVLINK_TRAP_GENERIC_ID_EMPTY_TX_LIST,
860 	DEVLINK_TRAP_GENERIC_ID_PORT_LOOPBACK_FILTER,
861 	DEVLINK_TRAP_GENERIC_ID_BLACKHOLE_ROUTE,
862 	DEVLINK_TRAP_GENERIC_ID_TTL_ERROR,
863 	DEVLINK_TRAP_GENERIC_ID_TAIL_DROP,
864 	DEVLINK_TRAP_GENERIC_ID_NON_IP_PACKET,
865 	DEVLINK_TRAP_GENERIC_ID_UC_DIP_MC_DMAC,
866 	DEVLINK_TRAP_GENERIC_ID_DIP_LB,
867 	DEVLINK_TRAP_GENERIC_ID_SIP_MC,
868 	DEVLINK_TRAP_GENERIC_ID_SIP_LB,
869 	DEVLINK_TRAP_GENERIC_ID_CORRUPTED_IP_HDR,
870 	DEVLINK_TRAP_GENERIC_ID_IPV4_SIP_BC,
871 	DEVLINK_TRAP_GENERIC_ID_IPV6_MC_DIP_RESERVED_SCOPE,
872 	DEVLINK_TRAP_GENERIC_ID_IPV6_MC_DIP_INTERFACE_LOCAL_SCOPE,
873 	DEVLINK_TRAP_GENERIC_ID_MTU_ERROR,
874 	DEVLINK_TRAP_GENERIC_ID_UNRESOLVED_NEIGH,
875 	DEVLINK_TRAP_GENERIC_ID_RPF,
876 	DEVLINK_TRAP_GENERIC_ID_REJECT_ROUTE,
877 	DEVLINK_TRAP_GENERIC_ID_IPV4_LPM_UNICAST_MISS,
878 	DEVLINK_TRAP_GENERIC_ID_IPV6_LPM_UNICAST_MISS,
879 	DEVLINK_TRAP_GENERIC_ID_NON_ROUTABLE,
880 	DEVLINK_TRAP_GENERIC_ID_DECAP_ERROR,
881 	DEVLINK_TRAP_GENERIC_ID_OVERLAY_SMAC_MC,
882 	DEVLINK_TRAP_GENERIC_ID_INGRESS_FLOW_ACTION_DROP,
883 	DEVLINK_TRAP_GENERIC_ID_EGRESS_FLOW_ACTION_DROP,
884 	DEVLINK_TRAP_GENERIC_ID_STP,
885 	DEVLINK_TRAP_GENERIC_ID_LACP,
886 	DEVLINK_TRAP_GENERIC_ID_LLDP,
887 	DEVLINK_TRAP_GENERIC_ID_IGMP_QUERY,
888 	DEVLINK_TRAP_GENERIC_ID_IGMP_V1_REPORT,
889 	DEVLINK_TRAP_GENERIC_ID_IGMP_V2_REPORT,
890 	DEVLINK_TRAP_GENERIC_ID_IGMP_V3_REPORT,
891 	DEVLINK_TRAP_GENERIC_ID_IGMP_V2_LEAVE,
892 	DEVLINK_TRAP_GENERIC_ID_MLD_QUERY,
893 	DEVLINK_TRAP_GENERIC_ID_MLD_V1_REPORT,
894 	DEVLINK_TRAP_GENERIC_ID_MLD_V2_REPORT,
895 	DEVLINK_TRAP_GENERIC_ID_MLD_V1_DONE,
896 	DEVLINK_TRAP_GENERIC_ID_IPV4_DHCP,
897 	DEVLINK_TRAP_GENERIC_ID_IPV6_DHCP,
898 	DEVLINK_TRAP_GENERIC_ID_ARP_REQUEST,
899 	DEVLINK_TRAP_GENERIC_ID_ARP_RESPONSE,
900 	DEVLINK_TRAP_GENERIC_ID_ARP_OVERLAY,
901 	DEVLINK_TRAP_GENERIC_ID_IPV6_NEIGH_SOLICIT,
902 	DEVLINK_TRAP_GENERIC_ID_IPV6_NEIGH_ADVERT,
903 	DEVLINK_TRAP_GENERIC_ID_IPV4_BFD,
904 	DEVLINK_TRAP_GENERIC_ID_IPV6_BFD,
905 	DEVLINK_TRAP_GENERIC_ID_IPV4_OSPF,
906 	DEVLINK_TRAP_GENERIC_ID_IPV6_OSPF,
907 	DEVLINK_TRAP_GENERIC_ID_IPV4_BGP,
908 	DEVLINK_TRAP_GENERIC_ID_IPV6_BGP,
909 	DEVLINK_TRAP_GENERIC_ID_IPV4_VRRP,
910 	DEVLINK_TRAP_GENERIC_ID_IPV6_VRRP,
911 	DEVLINK_TRAP_GENERIC_ID_IPV4_PIM,
912 	DEVLINK_TRAP_GENERIC_ID_IPV6_PIM,
913 	DEVLINK_TRAP_GENERIC_ID_UC_LB,
914 	DEVLINK_TRAP_GENERIC_ID_LOCAL_ROUTE,
915 	DEVLINK_TRAP_GENERIC_ID_EXTERNAL_ROUTE,
916 	DEVLINK_TRAP_GENERIC_ID_IPV6_UC_DIP_LINK_LOCAL_SCOPE,
917 	DEVLINK_TRAP_GENERIC_ID_IPV6_DIP_ALL_NODES,
918 	DEVLINK_TRAP_GENERIC_ID_IPV6_DIP_ALL_ROUTERS,
919 	DEVLINK_TRAP_GENERIC_ID_IPV6_ROUTER_SOLICIT,
920 	DEVLINK_TRAP_GENERIC_ID_IPV6_ROUTER_ADVERT,
921 	DEVLINK_TRAP_GENERIC_ID_IPV6_REDIRECT,
922 	DEVLINK_TRAP_GENERIC_ID_IPV4_ROUTER_ALERT,
923 	DEVLINK_TRAP_GENERIC_ID_IPV6_ROUTER_ALERT,
924 	DEVLINK_TRAP_GENERIC_ID_PTP_EVENT,
925 	DEVLINK_TRAP_GENERIC_ID_PTP_GENERAL,
926 	DEVLINK_TRAP_GENERIC_ID_FLOW_ACTION_SAMPLE,
927 	DEVLINK_TRAP_GENERIC_ID_FLOW_ACTION_TRAP,
928 	DEVLINK_TRAP_GENERIC_ID_EARLY_DROP,
929 	DEVLINK_TRAP_GENERIC_ID_VXLAN_PARSING,
930 	DEVLINK_TRAP_GENERIC_ID_LLC_SNAP_PARSING,
931 	DEVLINK_TRAP_GENERIC_ID_VLAN_PARSING,
932 	DEVLINK_TRAP_GENERIC_ID_PPPOE_PPP_PARSING,
933 	DEVLINK_TRAP_GENERIC_ID_MPLS_PARSING,
934 	DEVLINK_TRAP_GENERIC_ID_ARP_PARSING,
935 	DEVLINK_TRAP_GENERIC_ID_IP_1_PARSING,
936 	DEVLINK_TRAP_GENERIC_ID_IP_N_PARSING,
937 	DEVLINK_TRAP_GENERIC_ID_GRE_PARSING,
938 	DEVLINK_TRAP_GENERIC_ID_UDP_PARSING,
939 	DEVLINK_TRAP_GENERIC_ID_TCP_PARSING,
940 	DEVLINK_TRAP_GENERIC_ID_IPSEC_PARSING,
941 	DEVLINK_TRAP_GENERIC_ID_SCTP_PARSING,
942 	DEVLINK_TRAP_GENERIC_ID_DCCP_PARSING,
943 	DEVLINK_TRAP_GENERIC_ID_GTP_PARSING,
944 	DEVLINK_TRAP_GENERIC_ID_ESP_PARSING,
945 	DEVLINK_TRAP_GENERIC_ID_BLACKHOLE_NEXTHOP,
946 	DEVLINK_TRAP_GENERIC_ID_DMAC_FILTER,
947 	DEVLINK_TRAP_GENERIC_ID_EAPOL,
948 	DEVLINK_TRAP_GENERIC_ID_LOCKED_PORT,
949 
950 	/* Add new generic trap IDs above */
951 	__DEVLINK_TRAP_GENERIC_ID_MAX,
952 	DEVLINK_TRAP_GENERIC_ID_MAX = __DEVLINK_TRAP_GENERIC_ID_MAX - 1,
953 };
954 
955 /* All trap groups must be documented in
956  * Documentation/networking/devlink/devlink-trap.rst
957  */
958 enum devlink_trap_group_generic_id {
959 	DEVLINK_TRAP_GROUP_GENERIC_ID_L2_DROPS,
960 	DEVLINK_TRAP_GROUP_GENERIC_ID_L3_DROPS,
961 	DEVLINK_TRAP_GROUP_GENERIC_ID_L3_EXCEPTIONS,
962 	DEVLINK_TRAP_GROUP_GENERIC_ID_BUFFER_DROPS,
963 	DEVLINK_TRAP_GROUP_GENERIC_ID_TUNNEL_DROPS,
964 	DEVLINK_TRAP_GROUP_GENERIC_ID_ACL_DROPS,
965 	DEVLINK_TRAP_GROUP_GENERIC_ID_STP,
966 	DEVLINK_TRAP_GROUP_GENERIC_ID_LACP,
967 	DEVLINK_TRAP_GROUP_GENERIC_ID_LLDP,
968 	DEVLINK_TRAP_GROUP_GENERIC_ID_MC_SNOOPING,
969 	DEVLINK_TRAP_GROUP_GENERIC_ID_DHCP,
970 	DEVLINK_TRAP_GROUP_GENERIC_ID_NEIGH_DISCOVERY,
971 	DEVLINK_TRAP_GROUP_GENERIC_ID_BFD,
972 	DEVLINK_TRAP_GROUP_GENERIC_ID_OSPF,
973 	DEVLINK_TRAP_GROUP_GENERIC_ID_BGP,
974 	DEVLINK_TRAP_GROUP_GENERIC_ID_VRRP,
975 	DEVLINK_TRAP_GROUP_GENERIC_ID_PIM,
976 	DEVLINK_TRAP_GROUP_GENERIC_ID_UC_LB,
977 	DEVLINK_TRAP_GROUP_GENERIC_ID_LOCAL_DELIVERY,
978 	DEVLINK_TRAP_GROUP_GENERIC_ID_EXTERNAL_DELIVERY,
979 	DEVLINK_TRAP_GROUP_GENERIC_ID_IPV6,
980 	DEVLINK_TRAP_GROUP_GENERIC_ID_PTP_EVENT,
981 	DEVLINK_TRAP_GROUP_GENERIC_ID_PTP_GENERAL,
982 	DEVLINK_TRAP_GROUP_GENERIC_ID_ACL_SAMPLE,
983 	DEVLINK_TRAP_GROUP_GENERIC_ID_ACL_TRAP,
984 	DEVLINK_TRAP_GROUP_GENERIC_ID_PARSER_ERROR_DROPS,
985 	DEVLINK_TRAP_GROUP_GENERIC_ID_EAPOL,
986 
987 	/* Add new generic trap group IDs above */
988 	__DEVLINK_TRAP_GROUP_GENERIC_ID_MAX,
989 	DEVLINK_TRAP_GROUP_GENERIC_ID_MAX =
990 		__DEVLINK_TRAP_GROUP_GENERIC_ID_MAX - 1,
991 };
992 
993 #define DEVLINK_TRAP_GENERIC_NAME_SMAC_MC \
994 	"source_mac_is_multicast"
995 #define DEVLINK_TRAP_GENERIC_NAME_VLAN_TAG_MISMATCH \
996 	"vlan_tag_mismatch"
997 #define DEVLINK_TRAP_GENERIC_NAME_INGRESS_VLAN_FILTER \
998 	"ingress_vlan_filter"
999 #define DEVLINK_TRAP_GENERIC_NAME_INGRESS_STP_FILTER \
1000 	"ingress_spanning_tree_filter"
1001 #define DEVLINK_TRAP_GENERIC_NAME_EMPTY_TX_LIST \
1002 	"port_list_is_empty"
1003 #define DEVLINK_TRAP_GENERIC_NAME_PORT_LOOPBACK_FILTER \
1004 	"port_loopback_filter"
1005 #define DEVLINK_TRAP_GENERIC_NAME_BLACKHOLE_ROUTE \
1006 	"blackhole_route"
1007 #define DEVLINK_TRAP_GENERIC_NAME_TTL_ERROR \
1008 	"ttl_value_is_too_small"
1009 #define DEVLINK_TRAP_GENERIC_NAME_TAIL_DROP \
1010 	"tail_drop"
1011 #define DEVLINK_TRAP_GENERIC_NAME_NON_IP_PACKET \
1012 	"non_ip"
1013 #define DEVLINK_TRAP_GENERIC_NAME_UC_DIP_MC_DMAC \
1014 	"uc_dip_over_mc_dmac"
1015 #define DEVLINK_TRAP_GENERIC_NAME_DIP_LB \
1016 	"dip_is_loopback_address"
1017 #define DEVLINK_TRAP_GENERIC_NAME_SIP_MC \
1018 	"sip_is_mc"
1019 #define DEVLINK_TRAP_GENERIC_NAME_SIP_LB \
1020 	"sip_is_loopback_address"
1021 #define DEVLINK_TRAP_GENERIC_NAME_CORRUPTED_IP_HDR \
1022 	"ip_header_corrupted"
1023 #define DEVLINK_TRAP_GENERIC_NAME_IPV4_SIP_BC \
1024 	"ipv4_sip_is_limited_bc"
1025 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_MC_DIP_RESERVED_SCOPE \
1026 	"ipv6_mc_dip_reserved_scope"
1027 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_MC_DIP_INTERFACE_LOCAL_SCOPE \
1028 	"ipv6_mc_dip_interface_local_scope"
1029 #define DEVLINK_TRAP_GENERIC_NAME_MTU_ERROR \
1030 	"mtu_value_is_too_small"
1031 #define DEVLINK_TRAP_GENERIC_NAME_UNRESOLVED_NEIGH \
1032 	"unresolved_neigh"
1033 #define DEVLINK_TRAP_GENERIC_NAME_RPF \
1034 	"mc_reverse_path_forwarding"
1035 #define DEVLINK_TRAP_GENERIC_NAME_REJECT_ROUTE \
1036 	"reject_route"
1037 #define DEVLINK_TRAP_GENERIC_NAME_IPV4_LPM_UNICAST_MISS \
1038 	"ipv4_lpm_miss"
1039 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_LPM_UNICAST_MISS \
1040 	"ipv6_lpm_miss"
1041 #define DEVLINK_TRAP_GENERIC_NAME_NON_ROUTABLE \
1042 	"non_routable_packet"
1043 #define DEVLINK_TRAP_GENERIC_NAME_DECAP_ERROR \
1044 	"decap_error"
1045 #define DEVLINK_TRAP_GENERIC_NAME_OVERLAY_SMAC_MC \
1046 	"overlay_smac_is_mc"
1047 #define DEVLINK_TRAP_GENERIC_NAME_INGRESS_FLOW_ACTION_DROP \
1048 	"ingress_flow_action_drop"
1049 #define DEVLINK_TRAP_GENERIC_NAME_EGRESS_FLOW_ACTION_DROP \
1050 	"egress_flow_action_drop"
1051 #define DEVLINK_TRAP_GENERIC_NAME_STP \
1052 	"stp"
1053 #define DEVLINK_TRAP_GENERIC_NAME_LACP \
1054 	"lacp"
1055 #define DEVLINK_TRAP_GENERIC_NAME_LLDP \
1056 	"lldp"
1057 #define DEVLINK_TRAP_GENERIC_NAME_IGMP_QUERY \
1058 	"igmp_query"
1059 #define DEVLINK_TRAP_GENERIC_NAME_IGMP_V1_REPORT \
1060 	"igmp_v1_report"
1061 #define DEVLINK_TRAP_GENERIC_NAME_IGMP_V2_REPORT \
1062 	"igmp_v2_report"
1063 #define DEVLINK_TRAP_GENERIC_NAME_IGMP_V3_REPORT \
1064 	"igmp_v3_report"
1065 #define DEVLINK_TRAP_GENERIC_NAME_IGMP_V2_LEAVE \
1066 	"igmp_v2_leave"
1067 #define DEVLINK_TRAP_GENERIC_NAME_MLD_QUERY \
1068 	"mld_query"
1069 #define DEVLINK_TRAP_GENERIC_NAME_MLD_V1_REPORT \
1070 	"mld_v1_report"
1071 #define DEVLINK_TRAP_GENERIC_NAME_MLD_V2_REPORT \
1072 	"mld_v2_report"
1073 #define DEVLINK_TRAP_GENERIC_NAME_MLD_V1_DONE \
1074 	"mld_v1_done"
1075 #define DEVLINK_TRAP_GENERIC_NAME_IPV4_DHCP \
1076 	"ipv4_dhcp"
1077 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_DHCP \
1078 	"ipv6_dhcp"
1079 #define DEVLINK_TRAP_GENERIC_NAME_ARP_REQUEST \
1080 	"arp_request"
1081 #define DEVLINK_TRAP_GENERIC_NAME_ARP_RESPONSE \
1082 	"arp_response"
1083 #define DEVLINK_TRAP_GENERIC_NAME_ARP_OVERLAY \
1084 	"arp_overlay"
1085 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_NEIGH_SOLICIT \
1086 	"ipv6_neigh_solicit"
1087 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_NEIGH_ADVERT \
1088 	"ipv6_neigh_advert"
1089 #define DEVLINK_TRAP_GENERIC_NAME_IPV4_BFD \
1090 	"ipv4_bfd"
1091 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_BFD \
1092 	"ipv6_bfd"
1093 #define DEVLINK_TRAP_GENERIC_NAME_IPV4_OSPF \
1094 	"ipv4_ospf"
1095 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_OSPF \
1096 	"ipv6_ospf"
1097 #define DEVLINK_TRAP_GENERIC_NAME_IPV4_BGP \
1098 	"ipv4_bgp"
1099 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_BGP \
1100 	"ipv6_bgp"
1101 #define DEVLINK_TRAP_GENERIC_NAME_IPV4_VRRP \
1102 	"ipv4_vrrp"
1103 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_VRRP \
1104 	"ipv6_vrrp"
1105 #define DEVLINK_TRAP_GENERIC_NAME_IPV4_PIM \
1106 	"ipv4_pim"
1107 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_PIM \
1108 	"ipv6_pim"
1109 #define DEVLINK_TRAP_GENERIC_NAME_UC_LB \
1110 	"uc_loopback"
1111 #define DEVLINK_TRAP_GENERIC_NAME_LOCAL_ROUTE \
1112 	"local_route"
1113 #define DEVLINK_TRAP_GENERIC_NAME_EXTERNAL_ROUTE \
1114 	"external_route"
1115 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_UC_DIP_LINK_LOCAL_SCOPE \
1116 	"ipv6_uc_dip_link_local_scope"
1117 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_DIP_ALL_NODES \
1118 	"ipv6_dip_all_nodes"
1119 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_DIP_ALL_ROUTERS \
1120 	"ipv6_dip_all_routers"
1121 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_ROUTER_SOLICIT \
1122 	"ipv6_router_solicit"
1123 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_ROUTER_ADVERT \
1124 	"ipv6_router_advert"
1125 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_REDIRECT \
1126 	"ipv6_redirect"
1127 #define DEVLINK_TRAP_GENERIC_NAME_IPV4_ROUTER_ALERT \
1128 	"ipv4_router_alert"
1129 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_ROUTER_ALERT \
1130 	"ipv6_router_alert"
1131 #define DEVLINK_TRAP_GENERIC_NAME_PTP_EVENT \
1132 	"ptp_event"
1133 #define DEVLINK_TRAP_GENERIC_NAME_PTP_GENERAL \
1134 	"ptp_general"
1135 #define DEVLINK_TRAP_GENERIC_NAME_FLOW_ACTION_SAMPLE \
1136 	"flow_action_sample"
1137 #define DEVLINK_TRAP_GENERIC_NAME_FLOW_ACTION_TRAP \
1138 	"flow_action_trap"
1139 #define DEVLINK_TRAP_GENERIC_NAME_EARLY_DROP \
1140 	"early_drop"
1141 #define DEVLINK_TRAP_GENERIC_NAME_VXLAN_PARSING \
1142 	"vxlan_parsing"
1143 #define DEVLINK_TRAP_GENERIC_NAME_LLC_SNAP_PARSING \
1144 	"llc_snap_parsing"
1145 #define DEVLINK_TRAP_GENERIC_NAME_VLAN_PARSING \
1146 	"vlan_parsing"
1147 #define DEVLINK_TRAP_GENERIC_NAME_PPPOE_PPP_PARSING \
1148 	"pppoe_ppp_parsing"
1149 #define DEVLINK_TRAP_GENERIC_NAME_MPLS_PARSING \
1150 	"mpls_parsing"
1151 #define DEVLINK_TRAP_GENERIC_NAME_ARP_PARSING \
1152 	"arp_parsing"
1153 #define DEVLINK_TRAP_GENERIC_NAME_IP_1_PARSING \
1154 	"ip_1_parsing"
1155 #define DEVLINK_TRAP_GENERIC_NAME_IP_N_PARSING \
1156 	"ip_n_parsing"
1157 #define DEVLINK_TRAP_GENERIC_NAME_GRE_PARSING \
1158 	"gre_parsing"
1159 #define DEVLINK_TRAP_GENERIC_NAME_UDP_PARSING \
1160 	"udp_parsing"
1161 #define DEVLINK_TRAP_GENERIC_NAME_TCP_PARSING \
1162 	"tcp_parsing"
1163 #define DEVLINK_TRAP_GENERIC_NAME_IPSEC_PARSING \
1164 	"ipsec_parsing"
1165 #define DEVLINK_TRAP_GENERIC_NAME_SCTP_PARSING \
1166 	"sctp_parsing"
1167 #define DEVLINK_TRAP_GENERIC_NAME_DCCP_PARSING \
1168 	"dccp_parsing"
1169 #define DEVLINK_TRAP_GENERIC_NAME_GTP_PARSING \
1170 	"gtp_parsing"
1171 #define DEVLINK_TRAP_GENERIC_NAME_ESP_PARSING \
1172 	"esp_parsing"
1173 #define DEVLINK_TRAP_GENERIC_NAME_BLACKHOLE_NEXTHOP \
1174 	"blackhole_nexthop"
1175 #define DEVLINK_TRAP_GENERIC_NAME_DMAC_FILTER \
1176 	"dmac_filter"
1177 #define DEVLINK_TRAP_GENERIC_NAME_EAPOL \
1178 	"eapol"
1179 #define DEVLINK_TRAP_GENERIC_NAME_LOCKED_PORT \
1180 	"locked_port"
1181 
1182 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_L2_DROPS \
1183 	"l2_drops"
1184 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_L3_DROPS \
1185 	"l3_drops"
1186 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_L3_EXCEPTIONS \
1187 	"l3_exceptions"
1188 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_BUFFER_DROPS \
1189 	"buffer_drops"
1190 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_TUNNEL_DROPS \
1191 	"tunnel_drops"
1192 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_ACL_DROPS \
1193 	"acl_drops"
1194 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_STP \
1195 	"stp"
1196 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_LACP \
1197 	"lacp"
1198 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_LLDP \
1199 	"lldp"
1200 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_MC_SNOOPING  \
1201 	"mc_snooping"
1202 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_DHCP \
1203 	"dhcp"
1204 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_NEIGH_DISCOVERY \
1205 	"neigh_discovery"
1206 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_BFD \
1207 	"bfd"
1208 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_OSPF \
1209 	"ospf"
1210 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_BGP \
1211 	"bgp"
1212 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_VRRP \
1213 	"vrrp"
1214 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_PIM \
1215 	"pim"
1216 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_UC_LB \
1217 	"uc_loopback"
1218 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_LOCAL_DELIVERY \
1219 	"local_delivery"
1220 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_EXTERNAL_DELIVERY \
1221 	"external_delivery"
1222 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_IPV6 \
1223 	"ipv6"
1224 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_PTP_EVENT \
1225 	"ptp_event"
1226 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_PTP_GENERAL \
1227 	"ptp_general"
1228 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_ACL_SAMPLE \
1229 	"acl_sample"
1230 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_ACL_TRAP \
1231 	"acl_trap"
1232 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_PARSER_ERROR_DROPS \
1233 	"parser_error_drops"
1234 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_EAPOL \
1235 	"eapol"
1236 
1237 #define DEVLINK_TRAP_GENERIC(_type, _init_action, _id, _group_id,	      \
1238 			     _metadata_cap)				      \
1239 	{								      \
1240 		.type = DEVLINK_TRAP_TYPE_##_type,			      \
1241 		.init_action = DEVLINK_TRAP_ACTION_##_init_action,	      \
1242 		.generic = true,					      \
1243 		.id = DEVLINK_TRAP_GENERIC_ID_##_id,			      \
1244 		.name = DEVLINK_TRAP_GENERIC_NAME_##_id,		      \
1245 		.init_group_id = _group_id,				      \
1246 		.metadata_cap = _metadata_cap,				      \
1247 	}
1248 
1249 #define DEVLINK_TRAP_DRIVER(_type, _init_action, _id, _name, _group_id,	      \
1250 			    _metadata_cap)				      \
1251 	{								      \
1252 		.type = DEVLINK_TRAP_TYPE_##_type,			      \
1253 		.init_action = DEVLINK_TRAP_ACTION_##_init_action,	      \
1254 		.generic = false,					      \
1255 		.id = _id,						      \
1256 		.name = _name,						      \
1257 		.init_group_id = _group_id,				      \
1258 		.metadata_cap = _metadata_cap,				      \
1259 	}
1260 
1261 #define DEVLINK_TRAP_GROUP_GENERIC(_id, _policer_id)			      \
1262 	{								      \
1263 		.name = DEVLINK_TRAP_GROUP_GENERIC_NAME_##_id,		      \
1264 		.id = DEVLINK_TRAP_GROUP_GENERIC_ID_##_id,		      \
1265 		.generic = true,					      \
1266 		.init_policer_id = _policer_id,				      \
1267 	}
1268 
1269 #define DEVLINK_TRAP_POLICER(_id, _rate, _burst, _max_rate, _min_rate,	      \
1270 			     _max_burst, _min_burst)			      \
1271 	{								      \
1272 		.id = _id,						      \
1273 		.init_rate = _rate,					      \
1274 		.init_burst = _burst,					      \
1275 		.max_rate = _max_rate,					      \
1276 		.min_rate = _min_rate,					      \
1277 		.max_burst = _max_burst,				      \
1278 		.min_burst = _min_burst,				      \
1279 	}
1280 
1281 #define devlink_fmsg_put(fmsg, name, value) (			\
1282 	_Generic((value),					\
1283 		bool :		devlink_fmsg_bool_pair_put,	\
1284 		u8 :		devlink_fmsg_u8_pair_put,	\
1285 		u16 :		devlink_fmsg_u32_pair_put,	\
1286 		u32 :		devlink_fmsg_u32_pair_put,	\
1287 		u64 :		devlink_fmsg_u64_pair_put,	\
1288 		int :		devlink_fmsg_u32_pair_put,	\
1289 		char * :	devlink_fmsg_string_pair_put,	\
1290 		const char * :	devlink_fmsg_string_pair_put)	\
1291 	(fmsg, name, (value)))
1292 
1293 enum {
1294 	/* device supports reload operations */
1295 	DEVLINK_F_RELOAD = 1UL << 0,
1296 };
1297 
1298 struct devlink_ops {
1299 	/**
1300 	 * @supported_flash_update_params:
1301 	 * mask of parameters supported by the driver's .flash_update
1302 	 * implementation.
1303 	 */
1304 	u32 supported_flash_update_params;
1305 	unsigned long reload_actions;
1306 	unsigned long reload_limits;
1307 	int (*reload_down)(struct devlink *devlink, bool netns_change,
1308 			   enum devlink_reload_action action,
1309 			   enum devlink_reload_limit limit,
1310 			   struct netlink_ext_ack *extack);
1311 	int (*reload_up)(struct devlink *devlink, enum devlink_reload_action action,
1312 			 enum devlink_reload_limit limit, u32 *actions_performed,
1313 			 struct netlink_ext_ack *extack);
1314 	int (*sb_pool_get)(struct devlink *devlink, unsigned int sb_index,
1315 			   u16 pool_index,
1316 			   struct devlink_sb_pool_info *pool_info);
1317 	int (*sb_pool_set)(struct devlink *devlink, unsigned int sb_index,
1318 			   u16 pool_index, u32 size,
1319 			   enum devlink_sb_threshold_type threshold_type,
1320 			   struct netlink_ext_ack *extack);
1321 	int (*sb_port_pool_get)(struct devlink_port *devlink_port,
1322 				unsigned int sb_index, u16 pool_index,
1323 				u32 *p_threshold);
1324 	int (*sb_port_pool_set)(struct devlink_port *devlink_port,
1325 				unsigned int sb_index, u16 pool_index,
1326 				u32 threshold, struct netlink_ext_ack *extack);
1327 	int (*sb_tc_pool_bind_get)(struct devlink_port *devlink_port,
1328 				   unsigned int sb_index,
1329 				   u16 tc_index,
1330 				   enum devlink_sb_pool_type pool_type,
1331 				   u16 *p_pool_index, u32 *p_threshold);
1332 	int (*sb_tc_pool_bind_set)(struct devlink_port *devlink_port,
1333 				   unsigned int sb_index,
1334 				   u16 tc_index,
1335 				   enum devlink_sb_pool_type pool_type,
1336 				   u16 pool_index, u32 threshold,
1337 				   struct netlink_ext_ack *extack);
1338 	int (*sb_occ_snapshot)(struct devlink *devlink,
1339 			       unsigned int sb_index);
1340 	int (*sb_occ_max_clear)(struct devlink *devlink,
1341 				unsigned int sb_index);
1342 	int (*sb_occ_port_pool_get)(struct devlink_port *devlink_port,
1343 				    unsigned int sb_index, u16 pool_index,
1344 				    u32 *p_cur, u32 *p_max);
1345 	int (*sb_occ_tc_port_bind_get)(struct devlink_port *devlink_port,
1346 				       unsigned int sb_index,
1347 				       u16 tc_index,
1348 				       enum devlink_sb_pool_type pool_type,
1349 				       u32 *p_cur, u32 *p_max);
1350 
1351 	int (*eswitch_mode_get)(struct devlink *devlink, u16 *p_mode);
1352 	int (*eswitch_mode_set)(struct devlink *devlink, u16 mode,
1353 				struct netlink_ext_ack *extack);
1354 	int (*eswitch_inline_mode_get)(struct devlink *devlink, u8 *p_inline_mode);
1355 	int (*eswitch_inline_mode_set)(struct devlink *devlink, u8 inline_mode,
1356 				       struct netlink_ext_ack *extack);
1357 	int (*eswitch_encap_mode_get)(struct devlink *devlink,
1358 				      enum devlink_eswitch_encap_mode *p_encap_mode);
1359 	int (*eswitch_encap_mode_set)(struct devlink *devlink,
1360 				      enum devlink_eswitch_encap_mode encap_mode,
1361 				      struct netlink_ext_ack *extack);
1362 	int (*info_get)(struct devlink *devlink, struct devlink_info_req *req,
1363 			struct netlink_ext_ack *extack);
1364 	/**
1365 	 * @flash_update: Device flash update function
1366 	 *
1367 	 * Used to perform a flash update for the device. The set of
1368 	 * parameters supported by the driver should be set in
1369 	 * supported_flash_update_params.
1370 	 */
1371 	int (*flash_update)(struct devlink *devlink,
1372 			    struct devlink_flash_update_params *params,
1373 			    struct netlink_ext_ack *extack);
1374 	/**
1375 	 * @trap_init: Trap initialization function.
1376 	 *
1377 	 * Should be used by device drivers to initialize the trap in the
1378 	 * underlying device. Drivers should also store the provided trap
1379 	 * context, so that they could efficiently pass it to
1380 	 * devlink_trap_report() when the trap is triggered.
1381 	 */
1382 	int (*trap_init)(struct devlink *devlink,
1383 			 const struct devlink_trap *trap, void *trap_ctx);
1384 	/**
1385 	 * @trap_fini: Trap de-initialization function.
1386 	 *
1387 	 * Should be used by device drivers to de-initialize the trap in the
1388 	 * underlying device.
1389 	 */
1390 	void (*trap_fini)(struct devlink *devlink,
1391 			  const struct devlink_trap *trap, void *trap_ctx);
1392 	/**
1393 	 * @trap_action_set: Trap action set function.
1394 	 */
1395 	int (*trap_action_set)(struct devlink *devlink,
1396 			       const struct devlink_trap *trap,
1397 			       enum devlink_trap_action action,
1398 			       struct netlink_ext_ack *extack);
1399 	/**
1400 	 * @trap_group_init: Trap group initialization function.
1401 	 *
1402 	 * Should be used by device drivers to initialize the trap group in the
1403 	 * underlying device.
1404 	 */
1405 	int (*trap_group_init)(struct devlink *devlink,
1406 			       const struct devlink_trap_group *group);
1407 	/**
1408 	 * @trap_group_set: Trap group parameters set function.
1409 	 *
1410 	 * Note: @policer can be NULL when a policer is being unbound from
1411 	 * @group.
1412 	 */
1413 	int (*trap_group_set)(struct devlink *devlink,
1414 			      const struct devlink_trap_group *group,
1415 			      const struct devlink_trap_policer *policer,
1416 			      struct netlink_ext_ack *extack);
1417 	/**
1418 	 * @trap_group_action_set: Trap group action set function.
1419 	 *
1420 	 * If this callback is populated, it will take precedence over looping
1421 	 * over all traps in a group and calling .trap_action_set().
1422 	 */
1423 	int (*trap_group_action_set)(struct devlink *devlink,
1424 				     const struct devlink_trap_group *group,
1425 				     enum devlink_trap_action action,
1426 				     struct netlink_ext_ack *extack);
1427 	/**
1428 	 * @trap_drop_counter_get: Trap drop counter get function.
1429 	 *
1430 	 * Should be used by device drivers to report number of packets
1431 	 * that have been dropped, and cannot be passed to the devlink
1432 	 * subsystem by the underlying device.
1433 	 */
1434 	int (*trap_drop_counter_get)(struct devlink *devlink,
1435 				     const struct devlink_trap *trap,
1436 				     u64 *p_drops);
1437 	/**
1438 	 * @trap_policer_init: Trap policer initialization function.
1439 	 *
1440 	 * Should be used by device drivers to initialize the trap policer in
1441 	 * the underlying device.
1442 	 */
1443 	int (*trap_policer_init)(struct devlink *devlink,
1444 				 const struct devlink_trap_policer *policer);
1445 	/**
1446 	 * @trap_policer_fini: Trap policer de-initialization function.
1447 	 *
1448 	 * Should be used by device drivers to de-initialize the trap policer
1449 	 * in the underlying device.
1450 	 */
1451 	void (*trap_policer_fini)(struct devlink *devlink,
1452 				  const struct devlink_trap_policer *policer);
1453 	/**
1454 	 * @trap_policer_set: Trap policer parameters set function.
1455 	 */
1456 	int (*trap_policer_set)(struct devlink *devlink,
1457 				const struct devlink_trap_policer *policer,
1458 				u64 rate, u64 burst,
1459 				struct netlink_ext_ack *extack);
1460 	/**
1461 	 * @trap_policer_counter_get: Trap policer counter get function.
1462 	 *
1463 	 * Should be used by device drivers to report number of packets dropped
1464 	 * by the policer.
1465 	 */
1466 	int (*trap_policer_counter_get)(struct devlink *devlink,
1467 					const struct devlink_trap_policer *policer,
1468 					u64 *p_drops);
1469 	/**
1470 	 * port_new() - Add a new port function of a specified flavor
1471 	 * @devlink: Devlink instance
1472 	 * @attrs: attributes of the new port
1473 	 * @extack: extack for reporting error messages
1474 	 * @devlink_port: pointer to store new devlink port pointer
1475 	 *
1476 	 * Devlink core will call this device driver function upon user request
1477 	 * to create a new port function of a specified flavor and optional
1478 	 * attributes
1479 	 *
1480 	 * Notes:
1481 	 *	- On success, drivers must register a port with devlink core
1482 	 *
1483 	 * Return: 0 on success, negative value otherwise.
1484 	 */
1485 	int (*port_new)(struct devlink *devlink,
1486 			const struct devlink_port_new_attrs *attrs,
1487 			struct netlink_ext_ack *extack,
1488 			struct devlink_port **devlink_port);
1489 
1490 	/**
1491 	 * Rate control callbacks.
1492 	 */
1493 	int (*rate_leaf_tx_share_set)(struct devlink_rate *devlink_rate, void *priv,
1494 				      u64 tx_share, struct netlink_ext_ack *extack);
1495 	int (*rate_leaf_tx_max_set)(struct devlink_rate *devlink_rate, void *priv,
1496 				    u64 tx_max, struct netlink_ext_ack *extack);
1497 	int (*rate_leaf_tx_priority_set)(struct devlink_rate *devlink_rate, void *priv,
1498 					 u32 tx_priority, struct netlink_ext_ack *extack);
1499 	int (*rate_leaf_tx_weight_set)(struct devlink_rate *devlink_rate, void *priv,
1500 				       u32 tx_weight, struct netlink_ext_ack *extack);
1501 	int (*rate_leaf_tc_bw_set)(struct devlink_rate *devlink_rate,
1502 				   void *priv, u32 *tc_bw,
1503 				   struct netlink_ext_ack *extack);
1504 	int (*rate_node_tx_share_set)(struct devlink_rate *devlink_rate, void *priv,
1505 				      u64 tx_share, struct netlink_ext_ack *extack);
1506 	int (*rate_node_tx_max_set)(struct devlink_rate *devlink_rate, void *priv,
1507 				    u64 tx_max, struct netlink_ext_ack *extack);
1508 	int (*rate_node_tx_priority_set)(struct devlink_rate *devlink_rate, void *priv,
1509 					 u32 tx_priority, struct netlink_ext_ack *extack);
1510 	int (*rate_node_tx_weight_set)(struct devlink_rate *devlink_rate, void *priv,
1511 				       u32 tx_weight, struct netlink_ext_ack *extack);
1512 	int (*rate_node_tc_bw_set)(struct devlink_rate *devlink_rate,
1513 				   void *priv, u32 *tc_bw,
1514 				   struct netlink_ext_ack *extack);
1515 	int (*rate_node_new)(struct devlink_rate *rate_node, void **priv,
1516 			     struct netlink_ext_ack *extack);
1517 	int (*rate_node_del)(struct devlink_rate *rate_node, void *priv,
1518 			     struct netlink_ext_ack *extack);
1519 	int (*rate_leaf_parent_set)(struct devlink_rate *child,
1520 				    struct devlink_rate *parent,
1521 				    void *priv_child, void *priv_parent,
1522 				    struct netlink_ext_ack *extack);
1523 	int (*rate_node_parent_set)(struct devlink_rate *child,
1524 				    struct devlink_rate *parent,
1525 				    void *priv_child, void *priv_parent,
1526 				    struct netlink_ext_ack *extack);
1527 	/**
1528 	 * selftests_check() - queries if selftest is supported
1529 	 * @devlink: devlink instance
1530 	 * @id: test index
1531 	 * @extack: extack for reporting error messages
1532 	 *
1533 	 * Return: true if test is supported by the driver
1534 	 */
1535 	bool (*selftest_check)(struct devlink *devlink, unsigned int id,
1536 			       struct netlink_ext_ack *extack);
1537 	/**
1538 	 * selftest_run() - Runs a selftest
1539 	 * @devlink: devlink instance
1540 	 * @id: test index
1541 	 * @extack: extack for reporting error messages
1542 	 *
1543 	 * Return: status of the test
1544 	 */
1545 	enum devlink_selftest_status
1546 	(*selftest_run)(struct devlink *devlink, unsigned int id,
1547 			struct netlink_ext_ack *extack);
1548 };
1549 
1550 void *devlink_priv(struct devlink *devlink);
1551 struct devlink *priv_to_devlink(void *priv);
1552 struct device *devlink_to_dev(const struct devlink *devlink);
1553 
1554 /* Devlink instance explicit locking */
1555 void devl_lock(struct devlink *devlink);
1556 int devl_trylock(struct devlink *devlink);
1557 void devl_unlock(struct devlink *devlink);
1558 void devl_assert_locked(struct devlink *devlink);
1559 bool devl_lock_is_held(struct devlink *devlink);
1560 DEFINE_GUARD(devl, struct devlink *, devl_lock(_T), devl_unlock(_T));
1561 
1562 struct ib_device;
1563 
1564 struct net *devlink_net(const struct devlink *devlink);
1565 /* This call is intended for software devices that can create
1566  * devlink instances in other namespaces than init_net.
1567  *
1568  * Drivers that operate on real HW must use devlink_alloc() instead.
1569  */
1570 struct devlink *devlink_alloc_ns(const struct devlink_ops *ops,
1571 				 size_t priv_size, struct net *net,
1572 				 struct device *dev);
devlink_alloc(const struct devlink_ops * ops,size_t priv_size,struct device * dev)1573 static inline struct devlink *devlink_alloc(const struct devlink_ops *ops,
1574 					    size_t priv_size,
1575 					    struct device *dev)
1576 {
1577 	return devlink_alloc_ns(ops, priv_size, &init_net, dev);
1578 }
1579 
1580 int devl_register(struct devlink *devlink);
1581 void devl_unregister(struct devlink *devlink);
1582 void devlink_register(struct devlink *devlink);
1583 void devlink_unregister(struct devlink *devlink);
1584 void devlink_free(struct devlink *devlink);
1585 
1586 /**
1587  * struct devlink_port_ops - Port operations
1588  * @port_split: Callback used to split the port into multiple ones.
1589  * @port_unsplit: Callback used to unsplit the port group back into
1590  *		  a single port.
1591  * @port_type_set: Callback used to set a type of a port.
1592  * @port_del: Callback used to delete selected port along with related function.
1593  *	      Devlink core calls this upon user request to delete
1594  *	      a port previously created by devlink_ops->port_new().
1595  * @port_fn_hw_addr_get: Callback used to set port function's hardware address.
1596  *			 Should be used by device drivers to report
1597  *			 the hardware address of a function managed
1598  *			 by the devlink port.
1599  * @port_fn_hw_addr_set: Callback used to set port function's hardware address.
1600  *			 Should be used by device drivers to set the hardware
1601  *			 address of a function managed by the devlink port.
1602  * @port_fn_roce_get: Callback used to get port function's RoCE capability.
1603  *		      Should be used by device drivers to report
1604  *		      the current state of RoCE capability of a function
1605  *		      managed by the devlink port.
1606  * @port_fn_roce_set: Callback used to set port function's RoCE capability.
1607  *		      Should be used by device drivers to enable/disable
1608  *		      RoCE capability of a function managed
1609  *		      by the devlink port.
1610  * @port_fn_migratable_get: Callback used to get port function's migratable
1611  *			    capability. Should be used by device drivers
1612  *			    to report the current state of migratable capability
1613  *			    of a function managed by the devlink port.
1614  * @port_fn_migratable_set: Callback used to set port function's migratable
1615  *			    capability. Should be used by device drivers
1616  *			    to enable/disable migratable capability of
1617  *			    a function managed by the devlink port.
1618  * @port_fn_state_get: Callback used to get port function's state.
1619  *		       Should be used by device drivers to report
1620  *		       the current admin and operational state of a
1621  *		       function managed by the devlink port.
1622  * @port_fn_state_set: Callback used to get port function's state.
1623  *		       Should be used by device drivers set
1624  *		       the admin state of a function managed
1625  *		       by the devlink port.
1626  * @port_fn_ipsec_crypto_get: Callback used to get port function's ipsec_crypto
1627  *			      capability. Should be used by device drivers
1628  *			      to report the current state of ipsec_crypto
1629  *			      capability of a function managed by the devlink
1630  *			      port.
1631  * @port_fn_ipsec_crypto_set: Callback used to set port function's ipsec_crypto
1632  *			      capability. Should be used by device drivers to
1633  *			      enable/disable ipsec_crypto capability of a
1634  *			      function managed by the devlink port.
1635  * @port_fn_ipsec_packet_get: Callback used to get port function's ipsec_packet
1636  *			      capability. Should be used by device drivers
1637  *			      to report the current state of ipsec_packet
1638  *			      capability of a function managed by the devlink
1639  *			      port.
1640  * @port_fn_ipsec_packet_set: Callback used to set port function's ipsec_packet
1641  *			      capability. Should be used by device drivers to
1642  *			      enable/disable ipsec_packet capability of a
1643  *			      function managed by the devlink port.
1644  * @port_fn_max_io_eqs_get: Callback used to get port function's maximum number
1645  *			    of event queues. Should be used by device drivers to
1646  *			    report the maximum event queues of a function
1647  *			    managed by the devlink port.
1648  * @port_fn_max_io_eqs_set: Callback used to set port function's maximum number
1649  *			    of event queues. Should be used by device drivers to
1650  *			    configure maximum number of event queues
1651  *			    of a function managed by the devlink port.
1652  *
1653  * Note: Driver should return -EOPNOTSUPP if it doesn't support
1654  * port function (@port_fn_*) handling for a particular port.
1655  */
1656 struct devlink_port_ops {
1657 	int (*port_split)(struct devlink *devlink, struct devlink_port *port,
1658 			  unsigned int count, struct netlink_ext_ack *extack);
1659 	int (*port_unsplit)(struct devlink *devlink, struct devlink_port *port,
1660 			    struct netlink_ext_ack *extack);
1661 	int (*port_type_set)(struct devlink_port *devlink_port,
1662 			     enum devlink_port_type port_type);
1663 	int (*port_del)(struct devlink *devlink, struct devlink_port *port,
1664 			struct netlink_ext_ack *extack);
1665 	int (*port_fn_hw_addr_get)(struct devlink_port *port, u8 *hw_addr,
1666 				   int *hw_addr_len,
1667 				   struct netlink_ext_ack *extack);
1668 	int (*port_fn_hw_addr_set)(struct devlink_port *port,
1669 				   const u8 *hw_addr, int hw_addr_len,
1670 				   struct netlink_ext_ack *extack);
1671 	int (*port_fn_roce_get)(struct devlink_port *devlink_port,
1672 				bool *is_enable,
1673 				struct netlink_ext_ack *extack);
1674 	int (*port_fn_roce_set)(struct devlink_port *devlink_port,
1675 				bool enable, struct netlink_ext_ack *extack);
1676 	int (*port_fn_migratable_get)(struct devlink_port *devlink_port,
1677 				      bool *is_enable,
1678 				      struct netlink_ext_ack *extack);
1679 	int (*port_fn_migratable_set)(struct devlink_port *devlink_port,
1680 				      bool enable,
1681 				      struct netlink_ext_ack *extack);
1682 	int (*port_fn_state_get)(struct devlink_port *port,
1683 				 enum devlink_port_fn_state *state,
1684 				 enum devlink_port_fn_opstate *opstate,
1685 				 struct netlink_ext_ack *extack);
1686 	int (*port_fn_state_set)(struct devlink_port *port,
1687 				 enum devlink_port_fn_state state,
1688 				 struct netlink_ext_ack *extack);
1689 	int (*port_fn_ipsec_crypto_get)(struct devlink_port *devlink_port,
1690 					bool *is_enable,
1691 					struct netlink_ext_ack *extack);
1692 	int (*port_fn_ipsec_crypto_set)(struct devlink_port *devlink_port,
1693 					bool enable,
1694 					struct netlink_ext_ack *extack);
1695 	int (*port_fn_ipsec_packet_get)(struct devlink_port *devlink_port,
1696 					bool *is_enable,
1697 					struct netlink_ext_ack *extack);
1698 	int (*port_fn_ipsec_packet_set)(struct devlink_port *devlink_port,
1699 					bool enable,
1700 					struct netlink_ext_ack *extack);
1701 	int (*port_fn_max_io_eqs_get)(struct devlink_port *devlink_port,
1702 				      u32 *max_eqs,
1703 				      struct netlink_ext_ack *extack);
1704 	int (*port_fn_max_io_eqs_set)(struct devlink_port *devlink_port,
1705 				      u32 max_eqs,
1706 				      struct netlink_ext_ack *extack);
1707 };
1708 
1709 void devlink_port_init(struct devlink *devlink,
1710 		       struct devlink_port *devlink_port);
1711 void devlink_port_fini(struct devlink_port *devlink_port);
1712 
1713 int devl_port_register_with_ops(struct devlink *devlink,
1714 				struct devlink_port *devlink_port,
1715 				unsigned int port_index,
1716 				const struct devlink_port_ops *ops);
1717 
devl_port_register(struct devlink * devlink,struct devlink_port * devlink_port,unsigned int port_index)1718 static inline int devl_port_register(struct devlink *devlink,
1719 				     struct devlink_port *devlink_port,
1720 				     unsigned int port_index)
1721 {
1722 	return devl_port_register_with_ops(devlink, devlink_port,
1723 					   port_index, NULL);
1724 }
1725 
1726 int devlink_port_register_with_ops(struct devlink *devlink,
1727 				   struct devlink_port *devlink_port,
1728 				   unsigned int port_index,
1729 				   const struct devlink_port_ops *ops);
1730 
devlink_port_register(struct devlink * devlink,struct devlink_port * devlink_port,unsigned int port_index)1731 static inline int devlink_port_register(struct devlink *devlink,
1732 					struct devlink_port *devlink_port,
1733 					unsigned int port_index)
1734 {
1735 	return devlink_port_register_with_ops(devlink, devlink_port,
1736 					      port_index, NULL);
1737 }
1738 
1739 void devl_port_unregister(struct devlink_port *devlink_port);
1740 void devlink_port_unregister(struct devlink_port *devlink_port);
1741 void devlink_port_type_eth_set(struct devlink_port *devlink_port);
1742 void devlink_port_type_ib_set(struct devlink_port *devlink_port,
1743 			      struct ib_device *ibdev);
1744 void devlink_port_type_clear(struct devlink_port *devlink_port);
1745 void devlink_port_attrs_set(struct devlink_port *devlink_port,
1746 			    struct devlink_port_attrs *devlink_port_attrs);
1747 void devlink_port_attrs_pci_pf_set(struct devlink_port *devlink_port, u32 controller,
1748 				   u16 pf, bool external);
1749 void devlink_port_attrs_pci_vf_set(struct devlink_port *devlink_port, u32 controller,
1750 				   u16 pf, u16 vf, bool external);
1751 void devlink_port_attrs_pci_sf_set(struct devlink_port *devlink_port,
1752 				   u32 controller, u16 pf, u32 sf,
1753 				   bool external);
1754 int devl_port_fn_devlink_set(struct devlink_port *devlink_port,
1755 			     struct devlink *fn_devlink);
1756 struct devlink_rate *
1757 devl_rate_node_create(struct devlink *devlink, void *priv, char *node_name,
1758 		      struct devlink_rate *parent);
1759 int
1760 devl_rate_leaf_create(struct devlink_port *devlink_port, void *priv,
1761 		      struct devlink_rate *parent);
1762 void devl_rate_leaf_destroy(struct devlink_port *devlink_port);
1763 void devl_rate_nodes_destroy(struct devlink *devlink);
1764 void devlink_port_linecard_set(struct devlink_port *devlink_port,
1765 			       struct devlink_linecard *linecard);
1766 struct devlink_linecard *
1767 devl_linecard_create(struct devlink *devlink, unsigned int linecard_index,
1768 		     const struct devlink_linecard_ops *ops, void *priv);
1769 void devl_linecard_destroy(struct devlink_linecard *linecard);
1770 void devlink_linecard_provision_set(struct devlink_linecard *linecard,
1771 				    const char *type);
1772 void devlink_linecard_provision_clear(struct devlink_linecard *linecard);
1773 void devlink_linecard_provision_fail(struct devlink_linecard *linecard);
1774 void devlink_linecard_activate(struct devlink_linecard *linecard);
1775 void devlink_linecard_deactivate(struct devlink_linecard *linecard);
1776 int devlink_linecard_nested_dl_set(struct devlink_linecard *linecard,
1777 				   struct devlink *nested_devlink);
1778 int devl_sb_register(struct devlink *devlink, unsigned int sb_index,
1779 		     u32 size, u16 ingress_pools_count,
1780 		     u16 egress_pools_count, u16 ingress_tc_count,
1781 		     u16 egress_tc_count);
1782 int devlink_sb_register(struct devlink *devlink, unsigned int sb_index,
1783 			u32 size, u16 ingress_pools_count,
1784 			u16 egress_pools_count, u16 ingress_tc_count,
1785 			u16 egress_tc_count);
1786 void devl_sb_unregister(struct devlink *devlink, unsigned int sb_index);
1787 void devlink_sb_unregister(struct devlink *devlink, unsigned int sb_index);
1788 int devl_dpipe_table_register(struct devlink *devlink,
1789 			      const char *table_name,
1790 			      const struct devlink_dpipe_table_ops *table_ops,
1791 			      void *priv, bool counter_control_extern);
1792 void devl_dpipe_table_unregister(struct devlink *devlink,
1793 				 const char *table_name);
1794 void devl_dpipe_headers_register(struct devlink *devlink,
1795 				 struct devlink_dpipe_headers *dpipe_headers);
1796 void devl_dpipe_headers_unregister(struct devlink *devlink);
1797 bool devlink_dpipe_table_counter_enabled(struct devlink *devlink,
1798 					 const char *table_name);
1799 int devlink_dpipe_entry_ctx_prepare(struct devlink_dpipe_dump_ctx *dump_ctx);
1800 int devlink_dpipe_entry_ctx_append(struct devlink_dpipe_dump_ctx *dump_ctx,
1801 				   struct devlink_dpipe_entry *entry);
1802 int devlink_dpipe_entry_ctx_close(struct devlink_dpipe_dump_ctx *dump_ctx);
1803 void devlink_dpipe_entry_clear(struct devlink_dpipe_entry *entry);
1804 int devlink_dpipe_action_put(struct sk_buff *skb,
1805 			     struct devlink_dpipe_action *action);
1806 int devlink_dpipe_match_put(struct sk_buff *skb,
1807 			    struct devlink_dpipe_match *match);
1808 extern struct devlink_dpipe_header devlink_dpipe_header_ethernet;
1809 extern struct devlink_dpipe_header devlink_dpipe_header_ipv4;
1810 extern struct devlink_dpipe_header devlink_dpipe_header_ipv6;
1811 
1812 int devl_resource_register(struct devlink *devlink,
1813 			   const char *resource_name,
1814 			   u64 resource_size,
1815 			   u64 resource_id,
1816 			   u64 parent_resource_id,
1817 			   const struct devlink_resource_size_params *size_params);
1818 void devl_resources_unregister(struct devlink *devlink);
1819 void devlink_resources_unregister(struct devlink *devlink);
1820 int devl_resource_size_get(struct devlink *devlink,
1821 			   u64 resource_id,
1822 			   u64 *p_resource_size);
1823 int devl_dpipe_table_resource_set(struct devlink *devlink,
1824 				  const char *table_name, u64 resource_id,
1825 				  u64 resource_units);
1826 void devl_resource_occ_get_register(struct devlink *devlink,
1827 				    u64 resource_id,
1828 				    devlink_resource_occ_get_t *occ_get,
1829 				    void *occ_get_priv);
1830 void devl_resource_occ_get_unregister(struct devlink *devlink,
1831 				      u64 resource_id);
1832 int devl_params_register(struct devlink *devlink,
1833 			 const struct devlink_param *params,
1834 			 size_t params_count);
1835 int devlink_params_register(struct devlink *devlink,
1836 			    const struct devlink_param *params,
1837 			    size_t params_count);
1838 void devl_params_unregister(struct devlink *devlink,
1839 			    const struct devlink_param *params,
1840 			    size_t params_count);
1841 void devlink_params_unregister(struct devlink *devlink,
1842 			       const struct devlink_param *params,
1843 			       size_t params_count);
1844 int devl_param_driverinit_value_get(struct devlink *devlink, u32 param_id,
1845 				    union devlink_param_value *val);
1846 void devl_param_driverinit_value_set(struct devlink *devlink, u32 param_id,
1847 				     union devlink_param_value init_val);
1848 void devl_param_value_changed(struct devlink *devlink, u32 param_id);
1849 struct devlink_region *devl_region_create(struct devlink *devlink,
1850 					  const struct devlink_region_ops *ops,
1851 					  u32 region_max_snapshots,
1852 					  u64 region_size);
1853 struct devlink_region *
1854 devlink_region_create(struct devlink *devlink,
1855 		      const struct devlink_region_ops *ops,
1856 		      u32 region_max_snapshots, u64 region_size);
1857 struct devlink_region *
1858 devlink_port_region_create(struct devlink_port *port,
1859 			   const struct devlink_port_region_ops *ops,
1860 			   u32 region_max_snapshots, u64 region_size);
1861 void devl_region_destroy(struct devlink_region *region);
1862 void devlink_region_destroy(struct devlink_region *region);
1863 int devlink_region_snapshot_id_get(struct devlink *devlink, u32 *id);
1864 void devlink_region_snapshot_id_put(struct devlink *devlink, u32 id);
1865 int devlink_region_snapshot_create(struct devlink_region *region,
1866 				   u8 *data, u32 snapshot_id);
1867 int devlink_info_serial_number_put(struct devlink_info_req *req,
1868 				   const char *sn);
1869 int devlink_info_board_serial_number_put(struct devlink_info_req *req,
1870 					 const char *bsn);
1871 
1872 enum devlink_info_version_type {
1873 	DEVLINK_INFO_VERSION_TYPE_NONE,
1874 	DEVLINK_INFO_VERSION_TYPE_COMPONENT, /* May be used as flash update
1875 					      * component by name.
1876 					      */
1877 };
1878 
1879 int devlink_info_version_fixed_put(struct devlink_info_req *req,
1880 				   const char *version_name,
1881 				   const char *version_value);
1882 int devlink_info_version_stored_put(struct devlink_info_req *req,
1883 				    const char *version_name,
1884 				    const char *version_value);
1885 int devlink_info_version_stored_put_ext(struct devlink_info_req *req,
1886 					const char *version_name,
1887 					const char *version_value,
1888 					enum devlink_info_version_type version_type);
1889 int devlink_info_version_running_put(struct devlink_info_req *req,
1890 				     const char *version_name,
1891 				     const char *version_value);
1892 int devlink_info_version_running_put_ext(struct devlink_info_req *req,
1893 					 const char *version_name,
1894 					 const char *version_value,
1895 					 enum devlink_info_version_type version_type);
1896 
1897 void devlink_fmsg_obj_nest_start(struct devlink_fmsg *fmsg);
1898 void devlink_fmsg_obj_nest_end(struct devlink_fmsg *fmsg);
1899 
1900 void devlink_fmsg_pair_nest_start(struct devlink_fmsg *fmsg, const char *name);
1901 void devlink_fmsg_pair_nest_end(struct devlink_fmsg *fmsg);
1902 
1903 void devlink_fmsg_arr_pair_nest_start(struct devlink_fmsg *fmsg,
1904 				      const char *name);
1905 void devlink_fmsg_arr_pair_nest_end(struct devlink_fmsg *fmsg);
1906 void devlink_fmsg_binary_pair_nest_start(struct devlink_fmsg *fmsg,
1907 					 const char *name);
1908 void devlink_fmsg_binary_pair_nest_end(struct devlink_fmsg *fmsg);
1909 
1910 void devlink_fmsg_u32_put(struct devlink_fmsg *fmsg, u32 value);
1911 void devlink_fmsg_string_put(struct devlink_fmsg *fmsg, const char *value);
1912 void devlink_fmsg_binary_put(struct devlink_fmsg *fmsg, const void *value,
1913 			     u16 value_len);
1914 
1915 void devlink_fmsg_bool_pair_put(struct devlink_fmsg *fmsg, const char *name,
1916 				bool value);
1917 void devlink_fmsg_u8_pair_put(struct devlink_fmsg *fmsg, const char *name,
1918 			      u8 value);
1919 void devlink_fmsg_u32_pair_put(struct devlink_fmsg *fmsg, const char *name,
1920 			       u32 value);
1921 void devlink_fmsg_u64_pair_put(struct devlink_fmsg *fmsg, const char *name,
1922 			       u64 value);
1923 void devlink_fmsg_string_pair_put(struct devlink_fmsg *fmsg, const char *name,
1924 				  const char *value);
1925 void devlink_fmsg_binary_pair_put(struct devlink_fmsg *fmsg, const char *name,
1926 				  const void *value, u32 value_len);
1927 
1928 struct devlink_health_reporter *
1929 devl_port_health_reporter_create(struct devlink_port *port,
1930 				 const struct devlink_health_reporter_ops *ops,
1931 				 u64 graceful_period, void *priv);
1932 
1933 struct devlink_health_reporter *
1934 devlink_port_health_reporter_create(struct devlink_port *port,
1935 				    const struct devlink_health_reporter_ops *ops,
1936 				    u64 graceful_period, void *priv);
1937 
1938 struct devlink_health_reporter *
1939 devl_health_reporter_create(struct devlink *devlink,
1940 			    const struct devlink_health_reporter_ops *ops,
1941 			    u64 graceful_period, void *priv);
1942 
1943 struct devlink_health_reporter *
1944 devlink_health_reporter_create(struct devlink *devlink,
1945 			       const struct devlink_health_reporter_ops *ops,
1946 			       u64 graceful_period, void *priv);
1947 
1948 void
1949 devl_health_reporter_destroy(struct devlink_health_reporter *reporter);
1950 
1951 void
1952 devlink_health_reporter_destroy(struct devlink_health_reporter *reporter);
1953 
1954 void *
1955 devlink_health_reporter_priv(struct devlink_health_reporter *reporter);
1956 int devlink_health_report(struct devlink_health_reporter *reporter,
1957 			  const char *msg, void *priv_ctx);
1958 void
1959 devlink_health_reporter_state_update(struct devlink_health_reporter *reporter,
1960 				     enum devlink_health_reporter_state state);
1961 void
1962 devlink_health_reporter_recovery_done(struct devlink_health_reporter *reporter);
1963 
1964 int devl_nested_devlink_set(struct devlink *devlink,
1965 			    struct devlink *nested_devlink);
1966 bool devlink_is_reload_failed(const struct devlink *devlink);
1967 void devlink_remote_reload_actions_performed(struct devlink *devlink,
1968 					     enum devlink_reload_limit limit,
1969 					     u32 actions_performed);
1970 
1971 void devlink_flash_update_status_notify(struct devlink *devlink,
1972 					const char *status_msg,
1973 					const char *component,
1974 					unsigned long done,
1975 					unsigned long total);
1976 void devlink_flash_update_timeout_notify(struct devlink *devlink,
1977 					 const char *status_msg,
1978 					 const char *component,
1979 					 unsigned long timeout);
1980 
1981 int devl_traps_register(struct devlink *devlink,
1982 			const struct devlink_trap *traps,
1983 			size_t traps_count, void *priv);
1984 int devlink_traps_register(struct devlink *devlink,
1985 			   const struct devlink_trap *traps,
1986 			   size_t traps_count, void *priv);
1987 void devl_traps_unregister(struct devlink *devlink,
1988 			   const struct devlink_trap *traps,
1989 			   size_t traps_count);
1990 void devlink_traps_unregister(struct devlink *devlink,
1991 			      const struct devlink_trap *traps,
1992 			      size_t traps_count);
1993 void devlink_trap_report(struct devlink *devlink, struct sk_buff *skb,
1994 			 void *trap_ctx, struct devlink_port *in_devlink_port,
1995 			 const struct flow_action_cookie *fa_cookie);
1996 void *devlink_trap_ctx_priv(void *trap_ctx);
1997 int devl_trap_groups_register(struct devlink *devlink,
1998 			      const struct devlink_trap_group *groups,
1999 			      size_t groups_count);
2000 int devlink_trap_groups_register(struct devlink *devlink,
2001 				 const struct devlink_trap_group *groups,
2002 				 size_t groups_count);
2003 void devl_trap_groups_unregister(struct devlink *devlink,
2004 				 const struct devlink_trap_group *groups,
2005 				 size_t groups_count);
2006 void devlink_trap_groups_unregister(struct devlink *devlink,
2007 				    const struct devlink_trap_group *groups,
2008 				    size_t groups_count);
2009 int
2010 devl_trap_policers_register(struct devlink *devlink,
2011 			    const struct devlink_trap_policer *policers,
2012 			    size_t policers_count);
2013 void
2014 devl_trap_policers_unregister(struct devlink *devlink,
2015 			      const struct devlink_trap_policer *policers,
2016 			      size_t policers_count);
2017 
2018 #if IS_ENABLED(CONFIG_NET_DEVLINK)
2019 
2020 struct devlink *__must_check devlink_try_get(struct devlink *devlink);
2021 void devlink_put(struct devlink *devlink);
2022 
2023 void devlink_compat_running_version(struct devlink *devlink,
2024 				    char *buf, size_t len);
2025 int devlink_compat_flash_update(struct devlink *devlink, const char *file_name);
2026 int devlink_compat_phys_port_name_get(struct net_device *dev,
2027 				      char *name, size_t len);
2028 int devlink_compat_switch_id_get(struct net_device *dev,
2029 				 struct netdev_phys_item_id *ppid);
2030 
2031 int devlink_nl_port_handle_fill(struct sk_buff *msg, struct devlink_port *devlink_port);
2032 size_t devlink_nl_port_handle_size(struct devlink_port *devlink_port);
2033 void devlink_fmsg_dump_skb(struct devlink_fmsg *fmsg, const struct sk_buff *skb);
2034 
2035 #else
2036 
devlink_try_get(struct devlink * devlink)2037 static inline struct devlink *devlink_try_get(struct devlink *devlink)
2038 {
2039 	return NULL;
2040 }
2041 
devlink_put(struct devlink * devlink)2042 static inline void devlink_put(struct devlink *devlink)
2043 {
2044 }
2045 
2046 static inline void
devlink_compat_running_version(struct devlink * devlink,char * buf,size_t len)2047 devlink_compat_running_version(struct devlink *devlink, char *buf, size_t len)
2048 {
2049 }
2050 
2051 static inline int
devlink_compat_flash_update(struct devlink * devlink,const char * file_name)2052 devlink_compat_flash_update(struct devlink *devlink, const char *file_name)
2053 {
2054 	return -EOPNOTSUPP;
2055 }
2056 
2057 static inline int
devlink_compat_phys_port_name_get(struct net_device * dev,char * name,size_t len)2058 devlink_compat_phys_port_name_get(struct net_device *dev,
2059 				  char *name, size_t len)
2060 {
2061 	return -EOPNOTSUPP;
2062 }
2063 
2064 static inline int
devlink_compat_switch_id_get(struct net_device * dev,struct netdev_phys_item_id * ppid)2065 devlink_compat_switch_id_get(struct net_device *dev,
2066 			     struct netdev_phys_item_id *ppid)
2067 {
2068 	return -EOPNOTSUPP;
2069 }
2070 
2071 static inline int
devlink_nl_port_handle_fill(struct sk_buff * msg,struct devlink_port * devlink_port)2072 devlink_nl_port_handle_fill(struct sk_buff *msg, struct devlink_port *devlink_port)
2073 {
2074 	return 0;
2075 }
2076 
devlink_nl_port_handle_size(struct devlink_port * devlink_port)2077 static inline size_t devlink_nl_port_handle_size(struct devlink_port *devlink_port)
2078 {
2079 	return 0;
2080 }
2081 
2082 #endif
2083 
2084 #endif /* _NET_DEVLINK_H_ */
2085