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bfcd3a46 JP |
1 | /* |
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> | |
5 | * | |
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. | |
10 | */ | |
11 | #ifndef _NET_DEVLINK_H_ | |
12 | #define _NET_DEVLINK_H_ | |
13 | ||
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> | |
21 | ||
22 | struct devlink_ops; | |
23 | ||
24 | struct devlink { | |
25 | struct list_head list; | |
26 | struct list_head port_list; | |
bf797471 | 27 | struct list_head sb_list; |
bfcd3a46 JP |
28 | const struct devlink_ops *ops; |
29 | struct device *dev; | |
30 | possible_net_t _net; | |
31 | char priv[0] __aligned(NETDEV_ALIGN); | |
32 | }; | |
33 | ||
34 | struct devlink_port { | |
35 | struct list_head list; | |
36 | struct devlink *devlink; | |
37 | unsigned index; | |
38 | bool registered; | |
39 | enum devlink_port_type type; | |
40 | enum devlink_port_type desired_type; | |
41 | void *type_dev; | |
42 | bool split; | |
43 | u32 split_group; | |
44 | }; | |
45 | ||
bf797471 JP |
46 | struct devlink_sb_pool_info { |
47 | enum devlink_sb_pool_type pool_type; | |
48 | u32 size; | |
49 | enum devlink_sb_threshold_type threshold_type; | |
50 | }; | |
51 | ||
bfcd3a46 | 52 | struct devlink_ops { |
bfcd3a46 JP |
53 | int (*port_type_set)(struct devlink_port *devlink_port, |
54 | enum devlink_port_type port_type); | |
55 | int (*port_split)(struct devlink *devlink, unsigned int port_index, | |
56 | unsigned int count); | |
57 | int (*port_unsplit)(struct devlink *devlink, unsigned int port_index); | |
bf797471 JP |
58 | int (*sb_pool_get)(struct devlink *devlink, unsigned int sb_index, |
59 | u16 pool_index, | |
60 | struct devlink_sb_pool_info *pool_info); | |
61 | int (*sb_pool_set)(struct devlink *devlink, unsigned int sb_index, | |
62 | u16 pool_index, u32 size, | |
63 | enum devlink_sb_threshold_type threshold_type); | |
64 | int (*sb_port_pool_get)(struct devlink_port *devlink_port, | |
65 | unsigned int sb_index, u16 pool_index, | |
66 | u32 *p_threshold); | |
67 | int (*sb_port_pool_set)(struct devlink_port *devlink_port, | |
68 | unsigned int sb_index, u16 pool_index, | |
69 | u32 threshold); | |
70 | int (*sb_tc_pool_bind_get)(struct devlink_port *devlink_port, | |
71 | unsigned int sb_index, | |
72 | u16 tc_index, | |
73 | enum devlink_sb_pool_type pool_type, | |
74 | u16 *p_pool_index, u32 *p_threshold); | |
75 | int (*sb_tc_pool_bind_set)(struct devlink_port *devlink_port, | |
76 | unsigned int sb_index, | |
77 | u16 tc_index, | |
78 | enum devlink_sb_pool_type pool_type, | |
79 | u16 pool_index, u32 threshold); | |
df38dafd JP |
80 | int (*sb_occ_snapshot)(struct devlink *devlink, |
81 | unsigned int sb_index); | |
82 | int (*sb_occ_max_clear)(struct devlink *devlink, | |
83 | unsigned int sb_index); | |
84 | int (*sb_occ_port_pool_get)(struct devlink_port *devlink_port, | |
85 | unsigned int sb_index, u16 pool_index, | |
86 | u32 *p_cur, u32 *p_max); | |
87 | int (*sb_occ_tc_port_bind_get)(struct devlink_port *devlink_port, | |
88 | unsigned int sb_index, | |
89 | u16 tc_index, | |
90 | enum devlink_sb_pool_type pool_type, | |
91 | u32 *p_cur, u32 *p_max); | |
08f4b591 OG |
92 | |
93 | int (*eswitch_mode_get)(struct devlink *devlink, u16 *p_mode); | |
94 | int (*eswitch_mode_set)(struct devlink *devlink, u16 mode); | |
bfcd3a46 JP |
95 | }; |
96 | ||
97 | static inline void *devlink_priv(struct devlink *devlink) | |
98 | { | |
99 | BUG_ON(!devlink); | |
100 | return &devlink->priv; | |
101 | } | |
102 | ||
103 | static inline struct devlink *priv_to_devlink(void *priv) | |
104 | { | |
105 | BUG_ON(!priv); | |
106 | return container_of(priv, struct devlink, priv); | |
107 | } | |
108 | ||
109 | struct ib_device; | |
110 | ||
111 | #if IS_ENABLED(CONFIG_NET_DEVLINK) | |
112 | ||
113 | struct devlink *devlink_alloc(const struct devlink_ops *ops, size_t priv_size); | |
114 | int devlink_register(struct devlink *devlink, struct device *dev); | |
115 | void devlink_unregister(struct devlink *devlink); | |
116 | void devlink_free(struct devlink *devlink); | |
117 | int devlink_port_register(struct devlink *devlink, | |
118 | struct devlink_port *devlink_port, | |
119 | unsigned int port_index); | |
120 | void devlink_port_unregister(struct devlink_port *devlink_port); | |
121 | void devlink_port_type_eth_set(struct devlink_port *devlink_port, | |
122 | struct net_device *netdev); | |
123 | void devlink_port_type_ib_set(struct devlink_port *devlink_port, | |
124 | struct ib_device *ibdev); | |
125 | void devlink_port_type_clear(struct devlink_port *devlink_port); | |
126 | void devlink_port_split_set(struct devlink_port *devlink_port, | |
127 | u32 split_group); | |
bf797471 JP |
128 | int devlink_sb_register(struct devlink *devlink, unsigned int sb_index, |
129 | u32 size, u16 ingress_pools_count, | |
130 | u16 egress_pools_count, u16 ingress_tc_count, | |
131 | u16 egress_tc_count); | |
132 | void devlink_sb_unregister(struct devlink *devlink, unsigned int sb_index); | |
bfcd3a46 JP |
133 | |
134 | #else | |
135 | ||
136 | static inline struct devlink *devlink_alloc(const struct devlink_ops *ops, | |
137 | size_t priv_size) | |
138 | { | |
139 | return kzalloc(sizeof(struct devlink) + priv_size, GFP_KERNEL); | |
140 | } | |
141 | ||
142 | static inline int devlink_register(struct devlink *devlink, struct device *dev) | |
143 | { | |
144 | return 0; | |
145 | } | |
146 | ||
147 | static inline void devlink_unregister(struct devlink *devlink) | |
148 | { | |
149 | } | |
150 | ||
151 | static inline void devlink_free(struct devlink *devlink) | |
152 | { | |
153 | kfree(devlink); | |
154 | } | |
155 | ||
156 | static inline int devlink_port_register(struct devlink *devlink, | |
157 | struct devlink_port *devlink_port, | |
158 | unsigned int port_index) | |
159 | { | |
160 | return 0; | |
161 | } | |
162 | ||
163 | static inline void devlink_port_unregister(struct devlink_port *devlink_port) | |
164 | { | |
165 | } | |
166 | ||
167 | static inline void devlink_port_type_eth_set(struct devlink_port *devlink_port, | |
168 | struct net_device *netdev) | |
169 | { | |
170 | } | |
171 | ||
172 | static inline void devlink_port_type_ib_set(struct devlink_port *devlink_port, | |
173 | struct ib_device *ibdev) | |
174 | { | |
175 | } | |
176 | ||
177 | static inline void devlink_port_type_clear(struct devlink_port *devlink_port) | |
178 | { | |
179 | } | |
180 | ||
181 | static inline void devlink_port_split_set(struct devlink_port *devlink_port, | |
182 | u32 split_group) | |
183 | { | |
184 | } | |
185 | ||
bf797471 JP |
186 | static inline int devlink_sb_register(struct devlink *devlink, |
187 | unsigned int sb_index, u32 size, | |
188 | u16 ingress_pools_count, | |
de33efd0 JP |
189 | u16 egress_pools_count, |
190 | u16 ingress_tc_count, | |
191 | u16 egress_tc_count) | |
bf797471 JP |
192 | { |
193 | return 0; | |
194 | } | |
195 | ||
196 | static inline void devlink_sb_unregister(struct devlink *devlink, | |
197 | unsigned int sb_index) | |
198 | { | |
199 | } | |
200 | ||
bfcd3a46 JP |
201 | #endif |
202 | ||
203 | #endif /* _NET_DEVLINK_H_ */ |