mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-15 08:14:15 +08:00
1797f5b3cf
This will be used by the IPv6 host table which will be introduced in the following patches. The fields in the header are added per-use. This header is global and can be reused by many drivers. Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
474 lines
13 KiB
C
474 lines
13 KiB
C
/*
|
|
* 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>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*/
|
|
#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 <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 devlink_dpipe_headers *dpipe_headers;
|
|
const struct devlink_ops *ops;
|
|
struct device *dev;
|
|
possible_net_t _net;
|
|
char priv[0] __aligned(NETDEV_ALIGN);
|
|
};
|
|
|
|
struct devlink_port {
|
|
struct list_head list;
|
|
struct devlink *devlink;
|
|
unsigned index;
|
|
bool registered;
|
|
enum devlink_port_type type;
|
|
enum devlink_port_type desired_type;
|
|
void *type_dev;
|
|
bool split;
|
|
u32 split_group;
|
|
};
|
|
|
|
struct devlink_sb_pool_info {
|
|
enum devlink_sb_pool_type pool_type;
|
|
u32 size;
|
|
enum devlink_sb_threshold_type threshold_type;
|
|
};
|
|
|
|
/**
|
|
* 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
|
|
* @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;
|
|
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_ops {
|
|
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);
|
|
int (*port_unsplit)(struct devlink *devlink, unsigned int port_index);
|
|
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);
|
|
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);
|
|
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);
|
|
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);
|
|
int (*eswitch_inline_mode_get)(struct devlink *devlink, u8 *p_inline_mode);
|
|
int (*eswitch_inline_mode_set)(struct devlink *devlink, u8 inline_mode);
|
|
int (*eswitch_encap_mode_get)(struct devlink *devlink, u8 *p_encap_mode);
|
|
int (*eswitch_encap_mode_set)(struct devlink *devlink, u8 encap_mode);
|
|
};
|
|
|
|
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);
|
|
}
|
|
|
|
struct ib_device;
|
|
|
|
#if IS_ENABLED(CONFIG_NET_DEVLINK)
|
|
|
|
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_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_split_set(struct devlink_port *devlink_port,
|
|
u32 split_group);
|
|
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;
|
|
|
|
#else
|
|
|
|
static inline struct devlink *devlink_alloc(const struct devlink_ops *ops,
|
|
size_t priv_size)
|
|
{
|
|
return kzalloc(sizeof(struct devlink) + priv_size, GFP_KERNEL);
|
|
}
|
|
|
|
static inline int devlink_register(struct devlink *devlink, struct device *dev)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void devlink_unregister(struct devlink *devlink)
|
|
{
|
|
}
|
|
|
|
static inline void devlink_free(struct devlink *devlink)
|
|
{
|
|
kfree(devlink);
|
|
}
|
|
|
|
static inline int devlink_port_register(struct devlink *devlink,
|
|
struct devlink_port *devlink_port,
|
|
unsigned int port_index)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void devlink_port_unregister(struct devlink_port *devlink_port)
|
|
{
|
|
}
|
|
|
|
static inline void devlink_port_type_eth_set(struct devlink_port *devlink_port,
|
|
struct net_device *netdev)
|
|
{
|
|
}
|
|
|
|
static inline void devlink_port_type_ib_set(struct devlink_port *devlink_port,
|
|
struct ib_device *ibdev)
|
|
{
|
|
}
|
|
|
|
static inline void devlink_port_type_clear(struct devlink_port *devlink_port)
|
|
{
|
|
}
|
|
|
|
static inline void devlink_port_split_set(struct devlink_port *devlink_port,
|
|
u32 split_group)
|
|
{
|
|
}
|
|
|
|
static inline 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)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void devlink_sb_unregister(struct devlink *devlink,
|
|
unsigned int sb_index)
|
|
{
|
|
}
|
|
|
|
static inline 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)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void devlink_dpipe_table_unregister(struct devlink *devlink,
|
|
const char *table_name)
|
|
{
|
|
}
|
|
|
|
static inline int devlink_dpipe_headers_register(struct devlink *devlink,
|
|
struct devlink_dpipe_headers *
|
|
dpipe_headers)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void devlink_dpipe_headers_unregister(struct devlink *devlink)
|
|
{
|
|
}
|
|
|
|
static inline bool devlink_dpipe_table_counter_enabled(struct devlink *devlink,
|
|
const char *table_name)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
static inline int
|
|
devlink_dpipe_entry_ctx_prepare(struct devlink_dpipe_dump_ctx *dump_ctx)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int
|
|
devlink_dpipe_entry_ctx_append(struct devlink_dpipe_dump_ctx *dump_ctx,
|
|
struct devlink_dpipe_entry *entry)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int
|
|
devlink_dpipe_entry_ctx_close(struct devlink_dpipe_dump_ctx *dump_ctx)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void
|
|
devlink_dpipe_entry_clear(struct devlink_dpipe_entry *entry)
|
|
{
|
|
}
|
|
|
|
static inline int
|
|
devlink_dpipe_action_put(struct sk_buff *skb,
|
|
struct devlink_dpipe_action *action)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int
|
|
devlink_dpipe_match_put(struct sk_buff *skb,
|
|
struct devlink_dpipe_match *match)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
#endif
|
|
|
|
#endif /* _NET_DEVLINK_H_ */
|