projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 JP |
52 | struct devlink_ops { |
| 53 | size_t priv_size; | |
| 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, | |
| 57 | unsigned int count); | |
| 58 | int (*port_unsplit)(struct devlink *devlink, unsigned int port_index); | |
| bf797471 JP |
59 | int (*sb_pool_get)(struct devlink *devlink, unsigned int sb_index, |
| 60 | u16 pool_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, | |
| 67 | u32 *p_threshold); | |
| 68 | int (*sb_port_pool_set)(struct devlink_port *devlink_port, | |
| 69 | unsigned int sb_index, u16 pool_index, | |
| 70 | u32 threshold); | |
| 71 | int (*sb_tc_pool_bind_get)(struct devlink_port *devlink_port, | |
| 72 | unsigned int sb_index, | |
| 73 | u16 tc_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, | |
| 78 | u16 tc_index, | |
| 79 | enum devlink_sb_pool_type pool_type, | |
| 80 | u16 pool_index, u32 threshold); | |
| df38dafd JP |
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, | |
| 90 | u16 tc_index, | |
| 91 | enum devlink_sb_pool_type pool_type, | |
| 92 | u32 *p_cur, u32 *p_max); | |
| bfcd3a46 JP |
93 | }; |
| 94 | ||
| 95 | static inline void *devlink_priv(struct devlink *devlink) | |
| 96 | { | |
| 97 | BUG_ON(!devlink); | |
| 98 | return &devlink->priv; | |
| 99 | } | |
| 100 | ||
| 101 | static inline struct devlink *priv_to_devlink(void *priv) | |
| 102 | { | |
| 103 | BUG_ON(!priv); | |
| 104 | return container_of(priv, struct devlink, priv); | |
| 105 | } | |
| 106 | ||
| 107 | struct ib_device; | |
| 108 | ||
| 109 | #if IS_ENABLED(CONFIG_NET_DEVLINK) | |
| 110 | ||
| 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, | |
| 125 | u32 split_group); | |
| bf797471 JP |
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); | |
| bfcd3a46 JP |
131 | |
| 132 | #else | |
| 133 | ||
| 134 | static inline struct devlink *devlink_alloc(const struct devlink_ops *ops, | |
| 135 | size_t priv_size) | |
| 136 | { | |
| 137 | return kzalloc(sizeof(struct devlink) + priv_size, GFP_KERNEL); | |
| 138 | } | |
| 139 | ||
| 140 | static inline int devlink_register(struct devlink *devlink, struct device *dev) | |
| 141 | { | |
| 142 | return 0; | |
| 143 | } | |
| 144 | ||
| 145 | static inline void devlink_unregister(struct devlink *devlink) | |
| 146 | { | |
| 147 | } | |
| 148 | ||
| 149 | static inline void devlink_free(struct devlink *devlink) | |
| 150 | { | |
| 151 | kfree(devlink); | |
| 152 | } | |
| 153 | ||
| 154 | static inline int devlink_port_register(struct devlink *devlink, | |
| 155 | struct devlink_port *devlink_port, | |
| 156 | unsigned int port_index) | |
| 157 | { | |
| 158 | return 0; | |
| 159 | } | |
| 160 | ||
| 161 | static inline void devlink_port_unregister(struct devlink_port *devlink_port) | |
| 162 | { | |
| 163 | } | |
| 164 | ||
| 165 | static inline void devlink_port_type_eth_set(struct devlink_port *devlink_port, | |
| 166 | struct net_device *netdev) | |
| 167 | { | |
| 168 | } | |
| 169 | ||
| 170 | static inline void devlink_port_type_ib_set(struct devlink_port *devlink_port, | |
| 171 | struct ib_device *ibdev) | |
| 172 | { | |
| 173 | } | |
| 174 | ||
| 175 | static inline void devlink_port_type_clear(struct devlink_port *devlink_port) | |
| 176 | { | |
| 177 | } | |
| 178 | ||
| 179 | static inline void devlink_port_split_set(struct devlink_port *devlink_port, | |
| 180 | u32 split_group) | |
| 181 | { | |
| 182 | } | |
| 183 | ||
| bf797471 JP |
184 | static inline int devlink_sb_register(struct devlink *devlink, |
| 185 | unsigned int sb_index, u32 size, | |
| 186 | u16 ingress_pools_count, | |
| de33efd0 JP |
187 | u16 egress_pools_count, |
| 188 | u16 ingress_tc_count, | |
| 189 | u16 egress_tc_count) | |
| bf797471 JP |
190 | { |
| 191 | return 0; | |
| 192 | } | |
| 193 | ||
| 194 | static inline void devlink_sb_unregister(struct devlink *devlink, | |
| 195 | unsigned int sb_index) | |
| 196 | { | |
| 197 | } | |
| 198 | ||
| bfcd3a46 JP |
199 | #endif |
| 200 | ||
| 201 | #endif /* _NET_DEVLINK_H_ */ |