/* SPDX-License-Identifier: GPL-2.0-or-later *//* * include/net/devlink.h - Network physical device Netlink interface * Copyright (c) 2016 Mellanox Technologies. All rights reserved. * Copyright (c) 2016 Jiri Pirko <jiri@mellanox.com> */#ifndef _NET_DEVLINK_H_#define _NET_DEVLINK_H_ #include <linux/device.h>#include <linux/slab.h>#include <linux/gfp.h>#include <linux/list.h>#include <linux/netdevice.h>#include <linux/spinlock.h>#include <linux/workqueue.h>#include <net/net_namespace.h>#include <uapi/linux/devlink.h> struct devlink_ops; struct devlink {	struct list_head list;	struct list_head port_list;	struct list_head sb_list;	struct list_head dpipe_table_list;	struct list_head resource_list;	struct list_head param_list;	struct list_head region_list;	u32 snapshot_id;	struct list_head reporter_list;	struct mutex reporters_lock; /* protects reporter_list */	struct devlink_dpipe_headers *dpipe_headers;	const struct devlink_ops *ops;	struct device *dev;	possible_net_t _net;	struct mutex lock;	char priv[0] __aligned(NETDEV_ALIGN);}; struct devlink_port_phys_attrs {	u32 port_number; /* Same value as "split group".			  * A physical port which is visible to the user			  * for a given port flavour.			  */	u32 split_subport_number;}; struct devlink_port_pci_pf_attrs {	u16 pf;	/* Associated PCI PF for this port. */}; struct devlink_port_pci_vf_attrs {	u16 pf;	/* Associated PCI PF for this port. */	u16 vf;	/* Associated PCI VF for of the PCI PF for this port. */}; struct devlink_port_attrs {	u8 set:1,	   split:1,	   switch_port:1;	enum devlink_port_flavour flavour;	struct netdev_phys_item_id switch_id;	union {		struct devlink_port_phys_attrs phys;		struct devlink_port_pci_pf_attrs pci_pf;		struct devlink_port_pci_vf_attrs pci_vf;	};}; struct devlink_port {	struct list_head list;	struct list_head param_list;	struct devlink *devlink;	unsigned index;	bool registered;	spinlock_t type_lock; /* Protects type and type_dev			       * pointer consistency.			       */	enum devlink_port_type type;	enum devlink_port_type desired_type;	void *type_dev;	struct devlink_port_attrs attrs;	struct delayed_work type_warn_dw;}; struct devlink_sb_pool_info {	enum devlink_sb_pool_type pool_type;	u32 size;	enum devlink_sb_threshold_type threshold_type;	u32 cell_size;}; /** * struct devlink_dpipe_field - dpipe field object * @name: field name * @id: index inside the headers field array * @bitwidth: bitwidth * @mapping_type: mapping type */struct devlink_dpipe_field {	const char *name;	unsigned int id;	unsigned int bitwidth;	enum devlink_dpipe_field_mapping_type mapping_type;}; /** * struct devlink_dpipe_header - dpipe header object * @name: header name * @id: index, global/local detrmined by global bit * @fields: fields * @fields_count: number of fields * @global: indicates if header is shared like most protocol header *	    or driver specific */struct devlink_dpipe_header {	const char *name;	unsigned int id;	struct devlink_dpipe_field *fields;	unsigned int fields_count;	bool global;}; /** * struct devlink_dpipe_match - represents match operation * @type: type of match * @header_index: header index (packets can have several headers of same *		  type like in case of tunnels) * @header: header * @fieled_id: field index */struct devlink_dpipe_match {	enum devlink_dpipe_match_type type;	unsigned int header_index;	struct devlink_dpipe_header *header;	unsigned int field_id;}; /** * struct devlink_dpipe_action - represents action operation * @type: type of action * @header_index: header index (packets can have several headers of same *		  type like in case of tunnels) * @header: header * @fieled_id: field index */struct devlink_dpipe_action {	enum devlink_dpipe_action_type type;	unsigned int header_index;	struct devlink_dpipe_header *header;	unsigned int field_id;}; /** * struct devlink_dpipe_value - represents value of match/action * @action: action * @match: match * @mapping_value: in case the field has some mapping this value *                 specified the mapping value * @mapping_valid: specify if mapping value is valid * @value_size: value size * @value: value * @mask: bit mask */struct devlink_dpipe_value {	union {		struct devlink_dpipe_action *action;		struct devlink_dpipe_match *match;	};	unsigned int mapping_value;	bool mapping_valid;	unsigned int value_size;	void *value;	void *mask;}; /** * struct devlink_dpipe_entry - table entry object * @index: index of the entry in the table * @match_values: match values * @matche_values_count: count of matches tuples * @action_values: actions values * @action_values_count: count of actions values * @counter: value of counter * @counter_valid: Specify if value is valid from hardware */struct devlink_dpipe_entry {	u64 index;	struct devlink_dpipe_value *match_values;	unsigned int match_values_count;	struct devlink_dpipe_value *action_values;	unsigned int action_values_count;	u64 counter;	bool counter_valid;}; /** * struct devlink_dpipe_dump_ctx - context provided to driver in order *				   to dump * @info: info * @cmd: devlink command * @skb: skb * @nest: top attribute * @hdr: hdr */struct devlink_dpipe_dump_ctx {	struct genl_info *info;	enum devlink_command cmd;	struct sk_buff *skb;	struct nlattr *nest;	void *hdr;}; struct devlink_dpipe_table_ops; /** * struct devlink_dpipe_table - table object * @priv: private * @name: table name * @counters_enabled: indicates if counters are active * @counter_control_extern: indicates if counter control is in dpipe or *			    external tool * @resource_valid: Indicate that the resource id is valid * @resource_id: relative resource this table is related to * @resource_units: number of resource's unit consumed per table's entry * @table_ops: table operations * @rcu: rcu */struct devlink_dpipe_table {	void *priv;	struct list_head list;	const char *name;	bool counters_enabled;	bool counter_control_extern;	bool resource_valid;	u64 resource_id;	u64 resource_units;	struct devlink_dpipe_table_ops *table_ops;	struct rcu_head rcu;}; /** * struct devlink_dpipe_table_ops - dpipe_table ops * @actions_dump - dumps all tables actions * @matches_dump - dumps all tables matches * @entries_dump - dumps all active entries in the table * @counters_set_update - when changing the counter status hardware sync *			  maybe needed to allocate/free counter related *			  resources * @size_get - get size */struct devlink_dpipe_table_ops {	int (*actions_dump)(void *priv, struct sk_buff *skb);	int (*matches_dump)(void *priv, struct sk_buff *skb);	int (*entries_dump)(void *priv, bool counters_enabled,			    struct devlink_dpipe_dump_ctx *dump_ctx);	int (*counters_set_update)(void *priv, bool enable);	u64 (*size_get)(void *priv);}; /** * struct devlink_dpipe_headers - dpipe headers * @headers - header array can be shared (global bit) or driver specific * @headers_count - count of headers */struct devlink_dpipe_headers {	struct devlink_dpipe_header **headers;	unsigned int headers_count;}; /** * struct devlink_resource_size_params - resource's size parameters * @size_min: minimum size which can be set * @size_max: maximum size which can be set * @size_granularity: size granularity * @size_unit: resource's basic unit */struct devlink_resource_size_params {	u64 size_min;	u64 size_max;	u64 size_granularity;	enum devlink_resource_unit unit;}; static inline voiddevlink_resource_size_params_init(struct devlink_resource_size_params *size_params,				  u64 size_min, u64 size_max,				  u64 size_granularity,				  enum devlink_resource_unit unit){	size_params->size_min = size_min;	size_params->size_max = size_max;	size_params->size_granularity = size_granularity;	size_params->unit = unit;} typedef u64 devlink_resource_occ_get_t(void *priv); /** * struct devlink_resource - devlink resource * @name: name of the resource * @id: id, per devlink instance * @size: size of the resource * @size_new: updated size of the resource, reload is needed * @size_valid: valid in case the total size of the resource is valid *              including its children * @parent: parent resource * @size_params: size parameters * @list: parent list * @resource_list: list of child resources */struct devlink_resource {	const char *name;	u64 id;	u64 size;	u64 size_new;	bool size_valid;	struct devlink_resource *parent;	struct devlink_resource_size_params size_params;	struct list_head list;	struct list_head resource_list;	devlink_resource_occ_get_t *occ_get;	void *occ_get_priv;}; #define DEVLINK_RESOURCE_ID_PARENT_TOP 0 #define __DEVLINK_PARAM_MAX_STRING_VALUE 32enum devlink_param_type {	DEVLINK_PARAM_TYPE_U8,	DEVLINK_PARAM_TYPE_U16,	DEVLINK_PARAM_TYPE_U32,	DEVLINK_PARAM_TYPE_STRING,	DEVLINK_PARAM_TYPE_BOOL,}; union devlink_param_value {	u8 vu8;	u16 vu16;	u32 vu32;	char vstr[__DEVLINK_PARAM_MAX_STRING_VALUE];	bool vbool;}; struct devlink_param_gset_ctx {	union devlink_param_value val;	enum devlink_param_cmode cmode;}; /** * struct devlink_param - devlink configuration parameter data * @name: name of the parameter * @generic: indicates if the parameter is generic or driver specific * @type: parameter type * @supported_cmodes: bitmap of supported configuration modes * @get: get parameter value, used for runtime and permanent *       configuration modes * @set: set parameter value, used for runtime and permanent *       configuration modes * @validate: validate input value is applicable (within value range, etc.) * * This struct should be used by the driver to fill the data for * a parameter it registers. */struct devlink_param {	u32 id;	const char *name;	bool generic;	enum devlink_param_type type;	unsigned long supported_cmodes;	int (*get)(struct devlink *devlink, u32 id,		   struct devlink_param_gset_ctx *ctx);	int (*set)(struct devlink *devlink, u32 id,		   struct devlink_param_gset_ctx *ctx);	int (*validate)(struct devlink *devlink, u32 id,			union devlink_param_value val,			struct netlink_ext_ack *extack);}; struct devlink_param_item {	struct list_head list;	const struct devlink_param *param;	union devlink_param_value driverinit_value;	bool driverinit_value_valid;	bool published;}; enum devlink_param_generic_id {	DEVLINK_PARAM_GENERIC_ID_INT_ERR_RESET,	DEVLINK_PARAM_GENERIC_ID_MAX_MACS,	DEVLINK_PARAM_GENERIC_ID_ENABLE_SRIOV,	DEVLINK_PARAM_GENERIC_ID_REGION_SNAPSHOT,	DEVLINK_PARAM_GENERIC_ID_IGNORE_ARI,	DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX,	DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN,	DEVLINK_PARAM_GENERIC_ID_FW_LOAD_POLICY, 	/* add new param generic ids above here*/	__DEVLINK_PARAM_GENERIC_ID_MAX,	DEVLINK_PARAM_GENERIC_ID_MAX = __DEVLINK_PARAM_GENERIC_ID_MAX - 1,}; #define DEVLINK_PARAM_GENERIC_INT_ERR_RESET_NAME "internal_error_reset"#define DEVLINK_PARAM_GENERIC_INT_ERR_RESET_TYPE DEVLINK_PARAM_TYPE_BOOL #define DEVLINK_PARAM_GENERIC_MAX_MACS_NAME "max_macs"#define DEVLINK_PARAM_GENERIC_MAX_MACS_TYPE DEVLINK_PARAM_TYPE_U32 #define DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_NAME "enable_sriov"#define DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_TYPE DEVLINK_PARAM_TYPE_BOOL #define DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_NAME "region_snapshot_enable"#define DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_TYPE DEVLINK_PARAM_TYPE_BOOL #define DEVLINK_PARAM_GENERIC_IGNORE_ARI_NAME "ignore_ari"#define DEVLINK_PARAM_GENERIC_IGNORE_ARI_TYPE DEVLINK_PARAM_TYPE_BOOL #define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MAX_NAME "msix_vec_per_pf_max"#define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MAX_TYPE DEVLINK_PARAM_TYPE_U32 #define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_NAME "msix_vec_per_pf_min"#define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_TYPE DEVLINK_PARAM_TYPE_U32 #define DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_NAME "fw_load_policy"#define DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_TYPE DEVLINK_PARAM_TYPE_U8 #define DEVLINK_PARAM_GENERIC(_id, _cmodes, _get, _set, _validate)	\{									\	.id = DEVLINK_PARAM_GENERIC_ID_##_id,				\	.name = DEVLINK_PARAM_GENERIC_##_id##_NAME,			\	.type = DEVLINK_PARAM_GENERIC_##_id##_TYPE,			\	.generic = true,						\	.supported_cmodes = _cmodes,					\	.get = _get,							\	.set = _set,							\	.validate = _validate,						\} #define DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes, _get, _set, _validate)	\{									\	.id = _id,							\	.name = _name,							\	.type = _type,							\	.supported_cmodes = _cmodes,					\	.get = _get,							\	.set = _set,							\	.validate = _validate,						\} /* Part number, identifier of board design */#define DEVLINK_INFO_VERSION_GENERIC_BOARD_ID	"board.id"/* Revision of board design */#define DEVLINK_INFO_VERSION_GENERIC_BOARD_REV	"board.rev"/* Maker of the board */#define DEVLINK_INFO_VERSION_GENERIC_BOARD_MANUFACTURE	"board.manufacture" /* Control processor FW version */#define DEVLINK_INFO_VERSION_GENERIC_FW_MGMT	"fw.mgmt"/* Data path microcode controlling high-speed packet processing */#define DEVLINK_INFO_VERSION_GENERIC_FW_APP	"fw.app"/* UNDI software version */#define DEVLINK_INFO_VERSION_GENERIC_FW_UNDI	"fw.undi"/* NCSI support/handler version */#define DEVLINK_INFO_VERSION_GENERIC_FW_NCSI	"fw.ncsi" struct devlink_region;struct devlink_info_req; typedef void devlink_snapshot_data_dest_t(const void *data); struct devlink_fmsg;struct devlink_health_reporter; enum devlink_health_reporter_state {	DEVLINK_HEALTH_REPORTER_STATE_HEALTHY,	DEVLINK_HEALTH_REPORTER_STATE_ERROR,}; /** * struct devlink_health_reporter_ops - Reporter operations * @name: reporter name * @recover: callback to recover from reported error *           if priv_ctx is NULL, run a full recover * @dump: callback to dump an object *        if priv_ctx is NULL, run a full dump * @diagnose: callback to diagnose the current status */ struct devlink_health_reporter_ops {	char *name;	int (*recover)(struct devlink_health_reporter *reporter,		       void *priv_ctx);	int (*dump)(struct devlink_health_reporter *reporter,		    struct devlink_fmsg *fmsg, void *priv_ctx);	int (*diagnose)(struct devlink_health_reporter *reporter,			struct devlink_fmsg *fmsg);}; struct devlink_ops {

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