2 * include/net/devlink.h - Network physical device Netlink interface
3 * Copyright (c) 2016 Mellanox Technologies. All rights reserved.
4 * Copyright (c) 2016 Jiri Pirko <jiri@mellanox.com>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 #ifndef _NET_DEVLINK_H_
12 #define _NET_DEVLINK_H_
14 #include <linux/device.h>
15 #include <linux/slab.h>
16 #include <linux/gfp.h>
17 #include <linux/list.h>
18 #include <linux/netdevice.h>
19 #include <net/net_namespace.h>
20 #include <uapi/linux/devlink.h>
25 struct list_head list
;
26 struct list_head port_list
;
27 struct list_head sb_list
;
28 const struct devlink_ops
*ops
;
31 char priv
[0] __aligned(NETDEV_ALIGN
);
35 struct list_head list
;
36 struct devlink
*devlink
;
39 enum devlink_port_type type
;
40 enum devlink_port_type desired_type
;
46 struct devlink_sb_pool_info
{
47 enum devlink_sb_pool_type pool_type
;
49 enum devlink_sb_threshold_type threshold_type
;
54 int (*port_type_set
)(struct devlink_port
*devlink_port
,
55 enum devlink_port_type port_type
);
56 int (*port_split
)(struct devlink
*devlink
, unsigned int port_index
,
58 int (*port_unsplit
)(struct devlink
*devlink
, unsigned int port_index
);
59 int (*sb_pool_get
)(struct devlink
*devlink
, unsigned int sb_index
,
61 struct devlink_sb_pool_info
*pool_info
);
62 int (*sb_pool_set
)(struct devlink
*devlink
, unsigned int sb_index
,
63 u16 pool_index
, u32 size
,
64 enum devlink_sb_threshold_type threshold_type
);
65 int (*sb_port_pool_get
)(struct devlink_port
*devlink_port
,
66 unsigned int sb_index
, u16 pool_index
,
68 int (*sb_port_pool_set
)(struct devlink_port
*devlink_port
,
69 unsigned int sb_index
, u16 pool_index
,
71 int (*sb_tc_pool_bind_get
)(struct devlink_port
*devlink_port
,
72 unsigned int sb_index
,
74 enum devlink_sb_pool_type pool_type
,
75 u16
*p_pool_index
, u32
*p_threshold
);
76 int (*sb_tc_pool_bind_set
)(struct devlink_port
*devlink_port
,
77 unsigned int sb_index
,
79 enum devlink_sb_pool_type pool_type
,
80 u16 pool_index
, u32 threshold
);
81 int (*sb_occ_snapshot
)(struct devlink
*devlink
,
82 unsigned int sb_index
);
83 int (*sb_occ_max_clear
)(struct devlink
*devlink
,
84 unsigned int sb_index
);
85 int (*sb_occ_port_pool_get
)(struct devlink_port
*devlink_port
,
86 unsigned int sb_index
, u16 pool_index
,
87 u32
*p_cur
, u32
*p_max
);
88 int (*sb_occ_tc_port_bind_get
)(struct devlink_port
*devlink_port
,
89 unsigned int sb_index
,
91 enum devlink_sb_pool_type pool_type
,
92 u32
*p_cur
, u32
*p_max
);
95 static inline void *devlink_priv(struct devlink
*devlink
)
98 return &devlink
->priv
;
101 static inline struct devlink
*priv_to_devlink(void *priv
)
104 return container_of(priv
, struct devlink
, priv
);
109 #if IS_ENABLED(CONFIG_NET_DEVLINK)
111 struct devlink
*devlink_alloc(const struct devlink_ops
*ops
, size_t priv_size
);
112 int devlink_register(struct devlink
*devlink
, struct device
*dev
);
113 void devlink_unregister(struct devlink
*devlink
);
114 void devlink_free(struct devlink
*devlink
);
115 int devlink_port_register(struct devlink
*devlink
,
116 struct devlink_port
*devlink_port
,
117 unsigned int port_index
);
118 void devlink_port_unregister(struct devlink_port
*devlink_port
);
119 void devlink_port_type_eth_set(struct devlink_port
*devlink_port
,
120 struct net_device
*netdev
);
121 void devlink_port_type_ib_set(struct devlink_port
*devlink_port
,
122 struct ib_device
*ibdev
);
123 void devlink_port_type_clear(struct devlink_port
*devlink_port
);
124 void devlink_port_split_set(struct devlink_port
*devlink_port
,
126 int devlink_sb_register(struct devlink
*devlink
, unsigned int sb_index
,
127 u32 size
, u16 ingress_pools_count
,
128 u16 egress_pools_count
, u16 ingress_tc_count
,
129 u16 egress_tc_count
);
130 void devlink_sb_unregister(struct devlink
*devlink
, unsigned int sb_index
);
134 static inline struct devlink
*devlink_alloc(const struct devlink_ops
*ops
,
137 return kzalloc(sizeof(struct devlink
) + priv_size
, GFP_KERNEL
);
140 static inline int devlink_register(struct devlink
*devlink
, struct device
*dev
)
145 static inline void devlink_unregister(struct devlink
*devlink
)
149 static inline void devlink_free(struct devlink
*devlink
)
154 static inline int devlink_port_register(struct devlink
*devlink
,
155 struct devlink_port
*devlink_port
,
156 unsigned int port_index
)
161 static inline void devlink_port_unregister(struct devlink_port
*devlink_port
)
165 static inline void devlink_port_type_eth_set(struct devlink_port
*devlink_port
,
166 struct net_device
*netdev
)
170 static inline void devlink_port_type_ib_set(struct devlink_port
*devlink_port
,
171 struct ib_device
*ibdev
)
175 static inline void devlink_port_type_clear(struct devlink_port
*devlink_port
)
179 static inline void devlink_port_split_set(struct devlink_port
*devlink_port
,
184 static inline int devlink_sb_register(struct devlink
*devlink
,
185 unsigned int sb_index
, u32 size
,
186 u16 ingress_pools_count
,
187 u16 egress_pools_count
,
188 u16 ingress_tc_count
,
194 static inline void devlink_sb_unregister(struct devlink
*devlink
,
195 unsigned int sb_index
)
201 #endif /* _NET_DEVLINK_H_ */