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linux/include/net/devlink.h

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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* include/net/devlink.h - Network physical device Netlink interface
* Copyright (c) 2016 Mellanox Technologies. All rights reserved.
* Copyright (c) 2016 Jiri Pirko <jiri@mellanox.com>
*/
#ifndef _NET_DEVLINK_H_
#define _NET_DEVLINK_H_
#include <linux/device.h>
#include <linux/slab.h>
#include <linux/gfp.h>
#include <linux/list.h>
#include <linux/netdevice.h>
#include <linux/spinlock.h>
#include <linux/workqueue.h>
#include <linux/refcount.h>
#include <net/net_namespace.h>
#include <uapi/linux/devlink.h>
struct devlink_ops;
struct devlink {
struct list_head list;
struct list_head port_list;
struct list_head sb_list;
struct list_head dpipe_table_list;
struct list_head resource_list;
struct list_head param_list;
struct list_head region_list;
u32 snapshot_id;
struct list_head reporter_list;
struct mutex reporters_lock; /* protects reporter_list */
struct devlink_dpipe_headers *dpipe_headers;
struct list_head trap_list;
struct list_head trap_group_list;
const struct devlink_ops *ops;
struct device *dev;
possible_net_t _net;
struct mutex lock;
u8 reload_failed:1,
reload_enabled:1,
registered:1;
char priv[0] __aligned(NETDEV_ALIGN);
};
struct devlink_port_phys_attrs {
u32 port_number; /* Same value as "split group".
* A physical port which is visible to the user
* for a given port flavour.
*/
u32 split_subport_number;
};
struct devlink_port_pci_pf_attrs {
u16 pf; /* Associated PCI PF for this port. */
};
struct devlink_port_pci_vf_attrs {
u16 pf; /* Associated PCI PF for this port. */
u16 vf; /* Associated PCI VF for of the PCI PF for this port. */
};
struct devlink_port_attrs {
u8 set:1,
split:1,
switch_port:1;
enum devlink_port_flavour flavour;
struct netdev_phys_item_id switch_id;
union {
struct devlink_port_phys_attrs phys;
struct devlink_port_pci_pf_attrs pci_pf;
struct devlink_port_pci_vf_attrs pci_vf;
};
};
struct devlink_port {
struct list_head list;
struct list_head param_list;
struct devlink *devlink;
unsigned int index;
bool registered;
spinlock_t type_lock; /* Protects type and type_dev
* pointer consistency.
*/
enum devlink_port_type type;
enum devlink_port_type desired_type;
void *type_dev;
struct devlink_port_attrs attrs;
struct delayed_work type_warn_dw;
};
struct devlink_sb_pool_info {
enum devlink_sb_pool_type pool_type;
u32 size;
enum devlink_sb_threshold_type threshold_type;
u32 cell_size;
};
/**
* struct devlink_dpipe_field - dpipe field object
* @name: field name
* @id: index inside the headers field array
* @bitwidth: bitwidth
* @mapping_type: mapping type
*/
struct devlink_dpipe_field {
const char *name;
unsigned int id;
unsigned int bitwidth;
enum devlink_dpipe_field_mapping_type mapping_type;
};
/**
* struct devlink_dpipe_header - dpipe header object
* @name: header name
* @id: index, global/local detrmined by global bit
* @fields: fields
* @fields_count: number of fields
* @global: indicates if header is shared like most protocol header
* or driver specific
*/
struct devlink_dpipe_header {
const char *name;
unsigned int id;
struct devlink_dpipe_field *fields;
unsigned int fields_count;
bool global;
};
/**
* struct devlink_dpipe_match - represents match operation
* @type: type of match
* @header_index: header index (packets can have several headers of same
* type like in case of tunnels)
* @header: header
* @fieled_id: field index
*/
struct devlink_dpipe_match {
enum devlink_dpipe_match_type type;
unsigned int header_index;
struct devlink_dpipe_header *header;
unsigned int field_id;
};
/**
* struct devlink_dpipe_action - represents action operation
* @type: type of action
* @header_index: header index (packets can have several headers of same
* type like in case of tunnels)
* @header: header
* @fieled_id: field index
*/
struct devlink_dpipe_action {
enum devlink_dpipe_action_type type;
unsigned int header_index;
struct devlink_dpipe_header *header;
unsigned int field_id;
};
/**
* struct devlink_dpipe_value - represents value of match/action
* @action: action
* @match: match
* @mapping_value: in case the field has some mapping this value
* specified the mapping value
* @mapping_valid: specify if mapping value is valid
* @value_size: value size
* @value: value
* @mask: bit mask
*/
struct devlink_dpipe_value {
union {
struct devlink_dpipe_action *action;
struct devlink_dpipe_match *match;
};
unsigned int mapping_value;
bool mapping_valid;
unsigned int value_size;
void *value;
void *mask;
};
/**
* struct devlink_dpipe_entry - table entry object
* @index: index of the entry in the table
* @match_values: match values
* @matche_values_count: count of matches tuples
* @action_values: actions values
* @action_values_count: count of actions values
* @counter: value of counter
* @counter_valid: Specify if value is valid from hardware
*/
struct devlink_dpipe_entry {
u64 index;
struct devlink_dpipe_value *match_values;
unsigned int match_values_count;
struct devlink_dpipe_value *action_values;
unsigned int action_values_count;
u64 counter;
bool counter_valid;
};
/**
* struct devlink_dpipe_dump_ctx - context provided to driver in order
* to dump
* @info: info
* @cmd: devlink command
* @skb: skb
* @nest: top attribute
* @hdr: hdr
*/
struct devlink_dpipe_dump_ctx {
struct genl_info *info;
enum devlink_command cmd;
struct sk_buff *skb;
struct nlattr *nest;
void *hdr;
};
struct devlink_dpipe_table_ops;
/**
* struct devlink_dpipe_table - table object
* @priv: private
* @name: table name
* @counters_enabled: indicates if counters are active
* @counter_control_extern: indicates if counter control is in dpipe or
* external tool
* @resource_valid: Indicate that the resource id is valid
* @resource_id: relative resource this table is related to
* @resource_units: number of resource's unit consumed per table's entry
* @table_ops: table operations
* @rcu: rcu
*/
struct devlink_dpipe_table {
void *priv;
struct list_head list;
const char *name;
bool counters_enabled;
bool counter_control_extern;
bool resource_valid;
u64 resource_id;
u64 resource_units;
struct devlink_dpipe_table_ops *table_ops;
struct rcu_head rcu;
};
/**
* struct devlink_dpipe_table_ops - dpipe_table ops
* @actions_dump - dumps all tables actions
* @matches_dump - dumps all tables matches
* @entries_dump - dumps all active entries in the table
* @counters_set_update - when changing the counter status hardware sync
* maybe needed to allocate/free counter related
* resources
* @size_get - get size
*/
struct devlink_dpipe_table_ops {
int (*actions_dump)(void *priv, struct sk_buff *skb);
int (*matches_dump)(void *priv, struct sk_buff *skb);
int (*entries_dump)(void *priv, bool counters_enabled,
struct devlink_dpipe_dump_ctx *dump_ctx);
int (*counters_set_update)(void *priv, bool enable);
u64 (*size_get)(void *priv);
};
/**
* struct devlink_dpipe_headers - dpipe headers
* @headers - header array can be shared (global bit) or driver specific
* @headers_count - count of headers
*/
struct devlink_dpipe_headers {
struct devlink_dpipe_header **headers;
unsigned int headers_count;
};
/**
* struct devlink_resource_size_params - resource's size parameters
* @size_min: minimum size which can be set
* @size_max: maximum size which can be set
* @size_granularity: size granularity
* @size_unit: resource's basic unit
*/
struct devlink_resource_size_params {
u64 size_min;
u64 size_max;
u64 size_granularity;
enum devlink_resource_unit unit;
};
static inline void
devlink_resource_size_params_init(struct devlink_resource_size_params *size_params,
u64 size_min, u64 size_max,
u64 size_granularity,
enum devlink_resource_unit unit)
{
size_params->size_min = size_min;
size_params->size_max = size_max;
size_params->size_granularity = size_granularity;
size_params->unit = unit;
}
typedef u64 devlink_resource_occ_get_t(void *priv);
/**
* struct devlink_resource - devlink resource
* @name: name of the resource
* @id: id, per devlink instance
* @size: size of the resource
* @size_new: updated size of the resource, reload is needed
* @size_valid: valid in case the total size of the resource is valid
* including its children
* @parent: parent resource
* @size_params: size parameters
* @list: parent list
* @resource_list: list of child resources
*/
struct devlink_resource {
const char *name;
u64 id;
u64 size;
u64 size_new;
bool size_valid;
struct devlink_resource *parent;
struct devlink_resource_size_params size_params;
struct list_head list;
struct list_head resource_list;
devlink_resource_occ_get_t *occ_get;
void *occ_get_priv;
};
#define DEVLINK_RESOURCE_ID_PARENT_TOP 0
#define __DEVLINK_PARAM_MAX_STRING_VALUE 32
enum devlink_param_type {
DEVLINK_PARAM_TYPE_U8,
DEVLINK_PARAM_TYPE_U16,
DEVLINK_PARAM_TYPE_U32,
DEVLINK_PARAM_TYPE_STRING,
DEVLINK_PARAM_TYPE_BOOL,
};
union devlink_param_value {
u8 vu8;
u16 vu16;
u32 vu32;
char vstr[__DEVLINK_PARAM_MAX_STRING_VALUE];
bool vbool;
};
struct devlink_param_gset_ctx {
union devlink_param_value val;
enum devlink_param_cmode cmode;
};
/**
* struct devlink_param - devlink configuration parameter data
* @name: name of the parameter
* @generic: indicates if the parameter is generic or driver specific
* @type: parameter type
* @supported_cmodes: bitmap of supported configuration modes
* @get: get parameter value, used for runtime and permanent
* configuration modes
* @set: set parameter value, used for runtime and permanent
* configuration modes
* @validate: validate input value is applicable (within value range, etc.)
*
* This struct should be used by the driver to fill the data for
* a parameter it registers.
*/
struct devlink_param {
u32 id;
const char *name;
bool generic;
enum devlink_param_type type;
unsigned long supported_cmodes;
int (*get)(struct devlink *devlink, u32 id,
struct devlink_param_gset_ctx *ctx);
int (*set)(struct devlink *devlink, u32 id,
struct devlink_param_gset_ctx *ctx);
int (*validate)(struct devlink *devlink, u32 id,
union devlink_param_value val,
struct netlink_ext_ack *extack);
};
struct devlink_param_item {
struct list_head list;
const struct devlink_param *param;
union devlink_param_value driverinit_value;
bool driverinit_value_valid;
bool published;
};
enum devlink_param_generic_id {
DEVLINK_PARAM_GENERIC_ID_INT_ERR_RESET,
DEVLINK_PARAM_GENERIC_ID_MAX_MACS,
DEVLINK_PARAM_GENERIC_ID_ENABLE_SRIOV,
DEVLINK_PARAM_GENERIC_ID_REGION_SNAPSHOT,
DEVLINK_PARAM_GENERIC_ID_IGNORE_ARI,
DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX,
DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN,
DEVLINK_PARAM_GENERIC_ID_FW_LOAD_POLICY,
DEVLINK_PARAM_GENERIC_ID_RESET_DEV_ON_DRV_PROBE,
DEVLINK_PARAM_GENERIC_ID_ENABLE_ROCE,
/* add new param generic ids above here*/
__DEVLINK_PARAM_GENERIC_ID_MAX,
DEVLINK_PARAM_GENERIC_ID_MAX = __DEVLINK_PARAM_GENERIC_ID_MAX - 1,
};
#define DEVLINK_PARAM_GENERIC_INT_ERR_RESET_NAME "internal_error_reset"
#define DEVLINK_PARAM_GENERIC_INT_ERR_RESET_TYPE DEVLINK_PARAM_TYPE_BOOL
#define DEVLINK_PARAM_GENERIC_MAX_MACS_NAME "max_macs"
#define DEVLINK_PARAM_GENERIC_MAX_MACS_TYPE DEVLINK_PARAM_TYPE_U32
#define DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_NAME "enable_sriov"
#define DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_TYPE DEVLINK_PARAM_TYPE_BOOL
#define DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_NAME "region_snapshot_enable"
#define DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_TYPE DEVLINK_PARAM_TYPE_BOOL
#define DEVLINK_PARAM_GENERIC_IGNORE_ARI_NAME "ignore_ari"
#define DEVLINK_PARAM_GENERIC_IGNORE_ARI_TYPE DEVLINK_PARAM_TYPE_BOOL
#define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MAX_NAME "msix_vec_per_pf_max"
#define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MAX_TYPE DEVLINK_PARAM_TYPE_U32
#define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_NAME "msix_vec_per_pf_min"
#define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_TYPE DEVLINK_PARAM_TYPE_U32
#define DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_NAME "fw_load_policy"
#define DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_TYPE DEVLINK_PARAM_TYPE_U8
#define DEVLINK_PARAM_GENERIC_RESET_DEV_ON_DRV_PROBE_NAME \
"reset_dev_on_drv_probe"
#define DEVLINK_PARAM_GENERIC_RESET_DEV_ON_DRV_PROBE_TYPE DEVLINK_PARAM_TYPE_U8
#define DEVLINK_PARAM_GENERIC_ENABLE_ROCE_NAME "enable_roce"
#define DEVLINK_PARAM_GENERIC_ENABLE_ROCE_TYPE DEVLINK_PARAM_TYPE_BOOL
#define DEVLINK_PARAM_GENERIC(_id, _cmodes, _get, _set, _validate) \
{ \
.id = DEVLINK_PARAM_GENERIC_ID_##_id, \
.name = DEVLINK_PARAM_GENERIC_##_id##_NAME, \
.type = DEVLINK_PARAM_GENERIC_##_id##_TYPE, \
.generic = true, \
.supported_cmodes = _cmodes, \
.get = _get, \
.set = _set, \
.validate = _validate, \
}
#define DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes, _get, _set, _validate) \
{ \
.id = _id, \
.name = _name, \
.type = _type, \
.supported_cmodes = _cmodes, \
.get = _get, \
.set = _set, \
.validate = _validate, \
}
/* Part number, identifier of board design */
#define DEVLINK_INFO_VERSION_GENERIC_BOARD_ID "board.id"
/* Revision of board design */
#define DEVLINK_INFO_VERSION_GENERIC_BOARD_REV "board.rev"
/* Maker of the board */
#define DEVLINK_INFO_VERSION_GENERIC_BOARD_MANUFACTURE "board.manufacture"
/* Part number, identifier of asic design */
#define DEVLINK_INFO_VERSION_GENERIC_ASIC_ID "asic.id"
/* Revision of asic design */
#define DEVLINK_INFO_VERSION_GENERIC_ASIC_REV "asic.rev"
/* Overall FW version */
#define DEVLINK_INFO_VERSION_GENERIC_FW "fw"
/* Control processor FW version */
#define DEVLINK_INFO_VERSION_GENERIC_FW_MGMT "fw.mgmt"
/* Data path microcode controlling high-speed packet processing */
#define DEVLINK_INFO_VERSION_GENERIC_FW_APP "fw.app"
/* UNDI software version */
#define DEVLINK_INFO_VERSION_GENERIC_FW_UNDI "fw.undi"
/* NCSI support/handler version */
#define DEVLINK_INFO_VERSION_GENERIC_FW_NCSI "fw.ncsi"
struct devlink_region;
struct devlink_info_req;
typedef void devlink_snapshot_data_dest_t(const void *data);
struct devlink_fmsg;
struct devlink_health_reporter;
enum devlink_health_reporter_state {
DEVLINK_HEALTH_REPORTER_STATE_HEALTHY,
DEVLINK_HEALTH_REPORTER_STATE_ERROR,
};
/**
* struct devlink_health_reporter_ops - Reporter operations
* @name: reporter name
* @recover: callback to recover from reported error
* if priv_ctx is NULL, run a full recover
* @dump: callback to dump an object
* if priv_ctx is NULL, run a full dump
* @diagnose: callback to diagnose the current status
*/
struct devlink_health_reporter_ops {
char *name;
int (*recover)(struct devlink_health_reporter *reporter,
void *priv_ctx, struct netlink_ext_ack *extack);
int (*dump)(struct devlink_health_reporter *reporter,
struct devlink_fmsg *fmsg, void *priv_ctx,
struct netlink_ext_ack *extack);
int (*diagnose)(struct devlink_health_reporter *reporter,
struct devlink_fmsg *fmsg,
struct netlink_ext_ack *extack);
};
/**
* struct devlink_trap_group - Immutable packet trap group attributes.
* @name: Trap group name.
* @id: Trap group identifier.
* @generic: Whether the trap group is generic or not.
*
* Describes immutable attributes of packet trap groups that drivers register
* with devlink.
*/
struct devlink_trap_group {
const char *name;
u16 id;
bool generic;
};
#define DEVLINK_TRAP_METADATA_TYPE_F_IN_PORT BIT(0)
/**
* struct devlink_trap - Immutable packet trap attributes.
* @type: Trap type.
* @init_action: Initial trap action.
* @generic: Whether the trap is generic or not.
* @id: Trap identifier.
* @name: Trap name.
* @group: Immutable packet trap group attributes.
* @metadata_cap: Metadata types that can be provided by the trap.
*
* Describes immutable attributes of packet traps that drivers register with
* devlink.
*/
struct devlink_trap {
enum devlink_trap_type type;
enum devlink_trap_action init_action;
bool generic;
u16 id;
const char *name;
struct devlink_trap_group group;
u32 metadata_cap;
};
/* All traps must be documented in
* Documentation/networking/devlink-trap.rst
*/
enum devlink_trap_generic_id {
DEVLINK_TRAP_GENERIC_ID_SMAC_MC,
DEVLINK_TRAP_GENERIC_ID_VLAN_TAG_MISMATCH,
DEVLINK_TRAP_GENERIC_ID_INGRESS_VLAN_FILTER,
DEVLINK_TRAP_GENERIC_ID_INGRESS_STP_FILTER,
DEVLINK_TRAP_GENERIC_ID_EMPTY_TX_LIST,
DEVLINK_TRAP_GENERIC_ID_PORT_LOOPBACK_FILTER,
DEVLINK_TRAP_GENERIC_ID_BLACKHOLE_ROUTE,
DEVLINK_TRAP_GENERIC_ID_TTL_ERROR,
DEVLINK_TRAP_GENERIC_ID_TAIL_DROP,
DEVLINK_TRAP_GENERIC_ID_NON_IP_PACKET,
DEVLINK_TRAP_GENERIC_ID_UC_DIP_MC_DMAC,
DEVLINK_TRAP_GENERIC_ID_DIP_LB,
DEVLINK_TRAP_GENERIC_ID_SIP_MC,
DEVLINK_TRAP_GENERIC_ID_SIP_LB,
DEVLINK_TRAP_GENERIC_ID_CORRUPTED_IP_HDR,
DEVLINK_TRAP_GENERIC_ID_IPV4_SIP_BC,
DEVLINK_TRAP_GENERIC_ID_IPV6_MC_DIP_RESERVED_SCOPE,
DEVLINK_TRAP_GENERIC_ID_IPV6_MC_DIP_INTERFACE_LOCAL_SCOPE,
DEVLINK_TRAP_GENERIC_ID_MTU_ERROR,
DEVLINK_TRAP_GENERIC_ID_UNRESOLVED_NEIGH,
DEVLINK_TRAP_GENERIC_ID_RPF,
DEVLINK_TRAP_GENERIC_ID_REJECT_ROUTE,
DEVLINK_TRAP_GENERIC_ID_IPV4_LPM_UNICAST_MISS,
DEVLINK_TRAP_GENERIC_ID_IPV6_LPM_UNICAST_MISS,
/* Add new generic trap IDs above */
__DEVLINK_TRAP_GENERIC_ID_MAX,
DEVLINK_TRAP_GENERIC_ID_MAX = __DEVLINK_TRAP_GENERIC_ID_MAX - 1,
};
/* All trap groups must be documented in
* Documentation/networking/devlink-trap.rst
*/
enum devlink_trap_group_generic_id {
DEVLINK_TRAP_GROUP_GENERIC_ID_L2_DROPS,
DEVLINK_TRAP_GROUP_GENERIC_ID_L3_DROPS,
DEVLINK_TRAP_GROUP_GENERIC_ID_BUFFER_DROPS,
/* Add new generic trap group IDs above */
__DEVLINK_TRAP_GROUP_GENERIC_ID_MAX,
DEVLINK_TRAP_GROUP_GENERIC_ID_MAX =
__DEVLINK_TRAP_GROUP_GENERIC_ID_MAX - 1,
};
#define DEVLINK_TRAP_GENERIC_NAME_SMAC_MC \
"source_mac_is_multicast"
#define DEVLINK_TRAP_GENERIC_NAME_VLAN_TAG_MISMATCH \
"vlan_tag_mismatch"
#define DEVLINK_TRAP_GENERIC_NAME_INGRESS_VLAN_FILTER \
"ingress_vlan_filter"
#define DEVLINK_TRAP_GENERIC_NAME_INGRESS_STP_FILTER \
"ingress_spanning_tree_filter"
#define DEVLINK_TRAP_GENERIC_NAME_EMPTY_TX_LIST \
"port_list_is_empty"
#define DEVLINK_TRAP_GENERIC_NAME_PORT_LOOPBACK_FILTER \
"port_loopback_filter"
#define DEVLINK_TRAP_GENERIC_NAME_BLACKHOLE_ROUTE \
"blackhole_route"
#define DEVLINK_TRAP_GENERIC_NAME_TTL_ERROR \
"ttl_value_is_too_small"
#define DEVLINK_TRAP_GENERIC_NAME_TAIL_DROP \
"tail_drop"
#define DEVLINK_TRAP_GENERIC_NAME_NON_IP_PACKET \
"non_ip"
#define DEVLINK_TRAP_GENERIC_NAME_UC_DIP_MC_DMAC \
"uc_dip_over_mc_dmac"
#define DEVLINK_TRAP_GENERIC_NAME_DIP_LB \
"dip_is_loopback_address"
#define DEVLINK_TRAP_GENERIC_NAME_SIP_MC \
"sip_is_mc"
#define DEVLINK_TRAP_GENERIC_NAME_SIP_LB \
"sip_is_loopback_address"
#define DEVLINK_TRAP_GENERIC_NAME_CORRUPTED_IP_HDR \
"ip_header_corrupted"
#define DEVLINK_TRAP_GENERIC_NAME_IPV4_SIP_BC \
"ipv4_sip_is_limited_bc"
#define DEVLINK_TRAP_GENERIC_NAME_IPV6_MC_DIP_RESERVED_SCOPE \
"ipv6_mc_dip_reserved_scope"
#define DEVLINK_TRAP_GENERIC_NAME_IPV6_MC_DIP_INTERFACE_LOCAL_SCOPE \
"ipv6_mc_dip_interface_local_scope"
#define DEVLINK_TRAP_GENERIC_NAME_MTU_ERROR \
"mtu_value_is_too_small"
#define DEVLINK_TRAP_GENERIC_NAME_UNRESOLVED_NEIGH \
"unresolved_neigh"
#define DEVLINK_TRAP_GENERIC_NAME_RPF \
"mc_reverse_path_forwarding"
#define DEVLINK_TRAP_GENERIC_NAME_REJECT_ROUTE \
"reject_route"
#define DEVLINK_TRAP_GENERIC_NAME_IPV4_LPM_UNICAST_MISS \
"ipv4_lpm_miss"
#define DEVLINK_TRAP_GENERIC_NAME_IPV6_LPM_UNICAST_MISS \
"ipv6_lpm_miss"
#define DEVLINK_TRAP_GROUP_GENERIC_NAME_L2_DROPS \
"l2_drops"
#define DEVLINK_TRAP_GROUP_GENERIC_NAME_L3_DROPS \
"l3_drops"
#define DEVLINK_TRAP_GROUP_GENERIC_NAME_BUFFER_DROPS \
"buffer_drops"
#define DEVLINK_TRAP_GENERIC(_type, _init_action, _id, _group, _metadata_cap) \
{ \
.type = DEVLINK_TRAP_TYPE_##_type, \
.init_action = DEVLINK_TRAP_ACTION_##_init_action, \
.generic = true, \
.id = DEVLINK_TRAP_GENERIC_ID_##_id, \
.name = DEVLINK_TRAP_GENERIC_NAME_##_id, \
.group = _group, \
.metadata_cap = _metadata_cap, \
}
#define DEVLINK_TRAP_DRIVER(_type, _init_action, _id, _name, _group, \
_metadata_cap) \
{ \
.type = DEVLINK_TRAP_TYPE_##_type, \
.init_action = DEVLINK_TRAP_ACTION_##_init_action, \
.generic = false, \
.id = _id, \
.name = _name, \
.group = _group, \
.metadata_cap = _metadata_cap, \
}
#define DEVLINK_TRAP_GROUP_GENERIC(_id) \
{ \
.name = DEVLINK_TRAP_GROUP_GENERIC_NAME_##_id, \
.id = DEVLINK_TRAP_GROUP_GENERIC_ID_##_id, \
.generic = true, \
}
struct devlink_ops {
int (*reload_down)(struct devlink *devlink, bool netns_change,
struct netlink_ext_ack *extack);
int (*reload_up)(struct devlink *devlink,
struct netlink_ext_ack *extack);
int (*port_type_set)(struct devlink_port *devlink_port,
enum devlink_port_type port_type);
int (*port_split)(struct devlink *devlink, unsigned int port_index,
unsigned int count, struct netlink_ext_ack *extack);
int (*port_unsplit)(struct devlink *devlink, unsigned int port_index,
struct netlink_ext_ack *extack);
int (*sb_pool_get)(struct devlink *devlink, unsigned int sb_index,
u16 pool_index,
struct devlink_sb_pool_info *pool_info);
int (*sb_pool_set)(struct devlink *devlink, unsigned int sb_index,
u16 pool_index, u32 size,
enum devlink_sb_threshold_type threshold_type,
struct netlink_ext_ack *extack);
int (*sb_port_pool_get)(struct devlink_port *devlink_port,
unsigned int sb_index, u16 pool_index,
u32 *p_threshold);
int (*sb_port_pool_set)(struct devlink_port *devlink_port,
unsigned int sb_index, u16 pool_index,
u32 threshold, struct netlink_ext_ack *extack);
int (*sb_tc_pool_bind_get)(struct devlink_port *devlink_port,
unsigned int sb_index,
u16 tc_index,
enum devlink_sb_pool_type pool_type,
u16 *p_pool_index, u32 *p_threshold);
int (*sb_tc_pool_bind_set)(struct devlink_port *devlink_port,
unsigned int sb_index,
u16 tc_index,
enum devlink_sb_pool_type pool_type,
u16 pool_index, u32 threshold,
struct netlink_ext_ack *extack);
int (*sb_occ_snapshot)(struct devlink *devlink,
unsigned int sb_index);
int (*sb_occ_max_clear)(struct devlink *devlink,
unsigned int sb_index);
int (*sb_occ_port_pool_get)(struct devlink_port *devlink_port,
unsigned int sb_index, u16 pool_index,
u32 *p_cur, u32 *p_max);
int (*sb_occ_tc_port_bind_get)(struct devlink_port *devlink_port,
unsigned int sb_index,
u16 tc_index,
enum devlink_sb_pool_type pool_type,
u32 *p_cur, u32 *p_max);
int (*eswitch_mode_get)(struct devlink *devlink, u16 *p_mode);
int (*eswitch_mode_set)(struct devlink *devlink, u16 mode,
struct netlink_ext_ack *extack);
int (*eswitch_inline_mode_get)(struct devlink *devlink, u8 *p_inline_mode);
int (*eswitch_inline_mode_set)(struct devlink *devlink, u8 inline_mode,
struct netlink_ext_ack *extack);
int (*eswitch_encap_mode_get)(struct devlink *devlink,
enum devlink_eswitch_encap_mode *p_encap_mode);
int (*eswitch_encap_mode_set)(struct devlink *devlink,
enum devlink_eswitch_encap_mode encap_mode,
struct netlink_ext_ack *extack);
int (*info_get)(struct devlink *devlink, struct devlink_info_req *req,
struct netlink_ext_ack *extack);
int (*flash_update)(struct devlink *devlink, const char *file_name,
const char *component,
struct netlink_ext_ack *extack);
/**
* @trap_init: Trap initialization function.
*
* Should be used by device drivers to initialize the trap in the
* underlying device. Drivers should also store the provided trap
* context, so that they could efficiently pass it to
* devlink_trap_report() when the trap is triggered.
*/
int (*trap_init)(struct devlink *devlink,
const struct devlink_trap *trap, void *trap_ctx);
/**
* @trap_fini: Trap de-initialization function.
*
* Should be used by device drivers to de-initialize the trap in the
* underlying device.
*/
void (*trap_fini)(struct devlink *devlink,
const struct devlink_trap *trap, void *trap_ctx);
/**
* @trap_action_set: Trap action set function.
*/
int (*trap_action_set)(struct devlink *devlink,
const struct devlink_trap *trap,
enum devlink_trap_action action);
/**
* @trap_group_init: Trap group initialization function.
*
* Should be used by device drivers to initialize the trap group in the
* underlying device.
*/
int (*trap_group_init)(struct devlink *devlink,
const struct devlink_trap_group *group);
};
static inline void *devlink_priv(struct devlink *devlink)
{
BUG_ON(!devlink);
return &devlink->priv;
}
static inline struct devlink *priv_to_devlink(void *priv)
{
BUG_ON(!priv);
return container_of(priv, struct devlink, priv);
}
static inline struct devlink_port *
netdev_to_devlink_port(struct net_device *dev)
{
if (dev->netdev_ops->ndo_get_devlink_port)
return dev->netdev_ops->ndo_get_devlink_port(dev);
return NULL;
}
static inline struct devlink *netdev_to_devlink(struct net_device *dev)
{
struct devlink_port *devlink_port = netdev_to_devlink_port(dev);
if (devlink_port)
return devlink_port->devlink;
return NULL;
}
struct ib_device;
struct net *devlink_net(const struct devlink *devlink);
void devlink_net_set(struct devlink *devlink, struct net *net);
struct devlink *devlink_alloc(const struct devlink_ops *ops, size_t priv_size);
int devlink_register(struct devlink *devlink, struct device *dev);
void devlink_unregister(struct devlink *devlink);
void devlink_reload_enable(struct devlink *devlink);
void devlink_reload_disable(struct devlink *devlink);
void devlink_free(struct devlink *devlink);
int devlink_port_register(struct devlink *devlink,
struct devlink_port *devlink_port,
unsigned int port_index);
void devlink_port_unregister(struct devlink_port *devlink_port);
void devlink_port_type_eth_set(struct devlink_port *devlink_port,
struct net_device *netdev);
void devlink_port_type_ib_set(struct devlink_port *devlink_port,
struct ib_device *ibdev);
void devlink_port_type_clear(struct devlink_port *devlink_port);
void devlink_port_attrs_set(struct devlink_port *devlink_port,
enum devlink_port_flavour flavour,
u32 port_number, bool split,
u32 split_subport_number,
const unsigned char *switch_id,
unsigned char switch_id_len);
void devlink_port_attrs_pci_pf_set(struct devlink_port *devlink_port,
const unsigned char *switch_id,
unsigned char switch_id_len, u16 pf);
void devlink_port_attrs_pci_vf_set(struct devlink_port *devlink_port,
const unsigned char *switch_id,
unsigned char switch_id_len,
u16 pf, u16 vf);
int devlink_sb_register(struct devlink *devlink, unsigned int sb_index,
u32 size, u16 ingress_pools_count,
u16 egress_pools_count, u16 ingress_tc_count,
u16 egress_tc_count);
void devlink_sb_unregister(struct devlink *devlink, unsigned int sb_index);
int devlink_dpipe_table_register(struct devlink *devlink,
const char *table_name,
struct devlink_dpipe_table_ops *table_ops,
void *priv, bool counter_control_extern);
void devlink_dpipe_table_unregister(struct devlink *devlink,
const char *table_name);
int devlink_dpipe_headers_register(struct devlink *devlink,
struct devlink_dpipe_headers *dpipe_headers);
void devlink_dpipe_headers_unregister(struct devlink *devlink);
bool devlink_dpipe_table_counter_enabled(struct devlink *devlink,
const char *table_name);
int devlink_dpipe_entry_ctx_prepare(struct devlink_dpipe_dump_ctx *dump_ctx);
int devlink_dpipe_entry_ctx_append(struct devlink_dpipe_dump_ctx *dump_ctx,
struct devlink_dpipe_entry *entry);
int devlink_dpipe_entry_ctx_close(struct devlink_dpipe_dump_ctx *dump_ctx);
void devlink_dpipe_entry_clear(struct devlink_dpipe_entry *entry);
int devlink_dpipe_action_put(struct sk_buff *skb,
struct devlink_dpipe_action *action);
int devlink_dpipe_match_put(struct sk_buff *skb,
struct devlink_dpipe_match *match);
extern struct devlink_dpipe_header devlink_dpipe_header_ethernet;
extern struct devlink_dpipe_header devlink_dpipe_header_ipv4;
extern struct devlink_dpipe_header devlink_dpipe_header_ipv6;
int devlink_resource_register(struct devlink *devlink,
const char *resource_name,
u64 resource_size,
u64 resource_id,
u64 parent_resource_id,
const struct devlink_resource_size_params *size_params);
void devlink_resources_unregister(struct devlink *devlink,
struct devlink_resource *resource);
int devlink_resource_size_get(struct devlink *devlink,
u64 resource_id,
u64 *p_resource_size);
int devlink_dpipe_table_resource_set(struct devlink *devlink,
const char *table_name, u64 resource_id,
u64 resource_units);
void devlink_resource_occ_get_register(struct devlink *devlink,
u64 resource_id,
devlink_resource_occ_get_t *occ_get,
void *occ_get_priv);
void devlink_resource_occ_get_unregister(struct devlink *devlink,
u64 resource_id);
int devlink_params_register(struct devlink *devlink,
const struct devlink_param *params,
size_t params_count);
void devlink_params_unregister(struct devlink *devlink,
const struct devlink_param *params,
size_t params_count);
void devlink_params_publish(struct devlink *devlink);
void devlink_params_unpublish(struct devlink *devlink);
int devlink_port_params_register(struct devlink_port *devlink_port,
const struct devlink_param *params,
size_t params_count);
void devlink_port_params_unregister(struct devlink_port *devlink_port,
const struct devlink_param *params,
size_t params_count);
int devlink_param_driverinit_value_get(struct devlink *devlink, u32 param_id,
union devlink_param_value *init_val);
int devlink_param_driverinit_value_set(struct devlink *devlink, u32 param_id,
union devlink_param_value init_val);
int
devlink_port_param_driverinit_value_get(struct devlink_port *devlink_port,
u32 param_id,
union devlink_param_value *init_val);
int devlink_port_param_driverinit_value_set(struct devlink_port *devlink_port,
u32 param_id,
union devlink_param_value init_val);
void devlink_param_value_changed(struct devlink *devlink, u32 param_id);
void devlink_port_param_value_changed(struct devlink_port *devlink_port,
u32 param_id);
void devlink_param_value_str_fill(union devlink_param_value *dst_val,
const char *src);
struct devlink_region *devlink_region_create(struct devlink *devlink,
const char *region_name,
u32 region_max_snapshots,
u64 region_size);
void devlink_region_destroy(struct devlink_region *region);
u32 devlink_region_shapshot_id_get(struct devlink *devlink);
int devlink_region_snapshot_create(struct devlink_region *region,
u8 *data, u32 snapshot_id,
devlink_snapshot_data_dest_t *data_destructor);
int devlink_info_serial_number_put(struct devlink_info_req *req,
const char *sn);
int devlink_info_driver_name_put(struct devlink_info_req *req,
const char *name);
int devlink_info_version_fixed_put(struct devlink_info_req *req,
const char *version_name,
const char *version_value);
int devlink_info_version_stored_put(struct devlink_info_req *req,
const char *version_name,
const char *version_value);
int devlink_info_version_running_put(struct devlink_info_req *req,
const char *version_name,
const char *version_value);
int devlink_fmsg_obj_nest_start(struct devlink_fmsg *fmsg);
int devlink_fmsg_obj_nest_end(struct devlink_fmsg *fmsg);
int devlink_fmsg_pair_nest_start(struct devlink_fmsg *fmsg, const char *name);
int devlink_fmsg_pair_nest_end(struct devlink_fmsg *fmsg);
int devlink_fmsg_arr_pair_nest_start(struct devlink_fmsg *fmsg,
const char *name);
int devlink_fmsg_arr_pair_nest_end(struct devlink_fmsg *fmsg);
int devlink_fmsg_bool_put(struct devlink_fmsg *fmsg, bool value);
int devlink_fmsg_u8_put(struct devlink_fmsg *fmsg, u8 value);
int devlink_fmsg_u32_put(struct devlink_fmsg *fmsg, u32 value);
int devlink_fmsg_u64_put(struct devlink_fmsg *fmsg, u64 value);
int devlink_fmsg_string_put(struct devlink_fmsg *fmsg, const char *value);
int devlink_fmsg_bool_pair_put(struct devlink_fmsg *fmsg, const char *name,
bool value);
int devlink_fmsg_u8_pair_put(struct devlink_fmsg *fmsg, const char *name,
u8 value);
int devlink_fmsg_u32_pair_put(struct devlink_fmsg *fmsg, const char *name,
u32 value);
int devlink_fmsg_u64_pair_put(struct devlink_fmsg *fmsg, const char *name,
u64 value);
int devlink_fmsg_string_pair_put(struct devlink_fmsg *fmsg, const char *name,
const char *value);
int devlink_fmsg_binary_pair_put(struct devlink_fmsg *fmsg, const char *name,
const void *value, u32 value_len);
struct devlink_health_reporter *
devlink_health_reporter_create(struct devlink *devlink,
const struct devlink_health_reporter_ops *ops,
u64 graceful_period, bool auto_recover,
void *priv);
void
devlink_health_reporter_destroy(struct devlink_health_reporter *reporter);
void *
devlink_health_reporter_priv(struct devlink_health_reporter *reporter);
int devlink_health_report(struct devlink_health_reporter *reporter,
const char *msg, void *priv_ctx);
void
devlink_health_reporter_state_update(struct devlink_health_reporter *reporter,
enum devlink_health_reporter_state state);
bool devlink_is_reload_failed(const struct devlink *devlink);
void devlink_flash_update_begin_notify(struct devlink *devlink);
void devlink_flash_update_end_notify(struct devlink *devlink);
void devlink_flash_update_status_notify(struct devlink *devlink,
const char *status_msg,
const char *component,
unsigned long done,
unsigned long total);
int devlink_traps_register(struct devlink *devlink,
const struct devlink_trap *traps,
size_t traps_count, void *priv);
void devlink_traps_unregister(struct devlink *devlink,
const struct devlink_trap *traps,
size_t traps_count);
void devlink_trap_report(struct devlink *devlink,
struct sk_buff *skb, void *trap_ctx,
struct devlink_port *in_devlink_port);
void *devlink_trap_ctx_priv(void *trap_ctx);
#if IS_ENABLED(CONFIG_NET_DEVLINK)
void devlink_compat_running_version(struct net_device *dev,
char *buf, size_t len);
int devlink_compat_flash_update(struct net_device *dev, const char *file_name);
int devlink_compat_phys_port_name_get(struct net_device *dev,
char *name, size_t len);
int devlink_compat_switch_id_get(struct net_device *dev,
struct netdev_phys_item_id *ppid);
#else
static inline void
devlink_compat_running_version(struct net_device *dev, char *buf, size_t len)
{
}
static inline int
devlink_compat_flash_update(struct net_device *dev, const char *file_name)
{
return -EOPNOTSUPP;
}
static inline int
devlink_compat_phys_port_name_get(struct net_device *dev,
char *name, size_t len)
{
return -EOPNOTSUPP;
}
static inline int
devlink_compat_switch_id_get(struct net_device *dev,
struct netdev_phys_item_id *ppid)
{
return -EOPNOTSUPP;
}
#endif
#endif /* _NET_DEVLINK_H_ */
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