204 lines
5.8 KiB
C
204 lines
5.8 KiB
C
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/*
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* include/net/devlink.h - Network physical device Netlink interface
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* Copyright (c) 2016 Mellanox Technologies. All rights reserved.
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* Copyright (c) 2016 Jiri Pirko <jiri@mellanox.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef _NET_DEVLINK_H_
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#define _NET_DEVLINK_H_
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#include <linux/device.h>
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#include <linux/slab.h>
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#include <linux/gfp.h>
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#include <linux/list.h>
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#include <linux/netdevice.h>
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#include <net/net_namespace.h>
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#include <uapi/linux/devlink.h>
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struct devlink_ops;
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struct devlink {
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struct list_head list;
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struct list_head port_list;
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struct list_head sb_list;
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const struct devlink_ops *ops;
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struct device *dev;
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possible_net_t _net;
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char priv[0] __aligned(NETDEV_ALIGN);
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};
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struct devlink_port {
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struct list_head list;
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struct devlink *devlink;
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unsigned index;
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bool registered;
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enum devlink_port_type type;
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enum devlink_port_type desired_type;
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void *type_dev;
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bool split;
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u32 split_group;
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};
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struct devlink_sb_pool_info {
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enum devlink_sb_pool_type pool_type;
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u32 size;
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enum devlink_sb_threshold_type threshold_type;
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};
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struct devlink_ops {
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int (*port_type_set)(struct devlink_port *devlink_port,
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enum devlink_port_type port_type);
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int (*port_split)(struct devlink *devlink, unsigned int port_index,
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unsigned int count);
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int (*port_unsplit)(struct devlink *devlink, unsigned int port_index);
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int (*sb_pool_get)(struct devlink *devlink, unsigned int sb_index,
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u16 pool_index,
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struct devlink_sb_pool_info *pool_info);
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int (*sb_pool_set)(struct devlink *devlink, unsigned int sb_index,
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u16 pool_index, u32 size,
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enum devlink_sb_threshold_type threshold_type);
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int (*sb_port_pool_get)(struct devlink_port *devlink_port,
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unsigned int sb_index, u16 pool_index,
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u32 *p_threshold);
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int (*sb_port_pool_set)(struct devlink_port *devlink_port,
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unsigned int sb_index, u16 pool_index,
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u32 threshold);
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int (*sb_tc_pool_bind_get)(struct devlink_port *devlink_port,
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unsigned int sb_index,
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u16 tc_index,
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enum devlink_sb_pool_type pool_type,
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u16 *p_pool_index, u32 *p_threshold);
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int (*sb_tc_pool_bind_set)(struct devlink_port *devlink_port,
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unsigned int sb_index,
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u16 tc_index,
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enum devlink_sb_pool_type pool_type,
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u16 pool_index, u32 threshold);
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int (*sb_occ_snapshot)(struct devlink *devlink,
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unsigned int sb_index);
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int (*sb_occ_max_clear)(struct devlink *devlink,
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unsigned int sb_index);
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int (*sb_occ_port_pool_get)(struct devlink_port *devlink_port,
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unsigned int sb_index, u16 pool_index,
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u32 *p_cur, u32 *p_max);
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int (*sb_occ_tc_port_bind_get)(struct devlink_port *devlink_port,
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unsigned int sb_index,
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u16 tc_index,
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enum devlink_sb_pool_type pool_type,
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u32 *p_cur, u32 *p_max);
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int (*eswitch_mode_get)(struct devlink *devlink, u16 *p_mode);
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int (*eswitch_mode_set)(struct devlink *devlink, u16 mode);
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};
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static inline void *devlink_priv(struct devlink *devlink)
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{
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BUG_ON(!devlink);
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return &devlink->priv;
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}
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static inline struct devlink *priv_to_devlink(void *priv)
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{
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BUG_ON(!priv);
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return container_of(priv, struct devlink, priv);
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}
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struct ib_device;
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#if IS_ENABLED(CONFIG_NET_DEVLINK)
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struct devlink *devlink_alloc(const struct devlink_ops *ops, size_t priv_size);
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int devlink_register(struct devlink *devlink, struct device *dev);
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void devlink_unregister(struct devlink *devlink);
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void devlink_free(struct devlink *devlink);
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int devlink_port_register(struct devlink *devlink,
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struct devlink_port *devlink_port,
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unsigned int port_index);
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void devlink_port_unregister(struct devlink_port *devlink_port);
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void devlink_port_type_eth_set(struct devlink_port *devlink_port,
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struct net_device *netdev);
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void devlink_port_type_ib_set(struct devlink_port *devlink_port,
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struct ib_device *ibdev);
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void devlink_port_type_clear(struct devlink_port *devlink_port);
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void devlink_port_split_set(struct devlink_port *devlink_port,
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u32 split_group);
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int devlink_sb_register(struct devlink *devlink, unsigned int sb_index,
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u32 size, u16 ingress_pools_count,
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u16 egress_pools_count, u16 ingress_tc_count,
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u16 egress_tc_count);
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void devlink_sb_unregister(struct devlink *devlink, unsigned int sb_index);
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#else
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static inline struct devlink *devlink_alloc(const struct devlink_ops *ops,
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size_t priv_size)
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{
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return kzalloc(sizeof(struct devlink) + priv_size, GFP_KERNEL);
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}
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static inline int devlink_register(struct devlink *devlink, struct device *dev)
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{
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return 0;
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}
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static inline void devlink_unregister(struct devlink *devlink)
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{
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}
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static inline void devlink_free(struct devlink *devlink)
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{
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kfree(devlink);
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}
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static inline int devlink_port_register(struct devlink *devlink,
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struct devlink_port *devlink_port,
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unsigned int port_index)
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{
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return 0;
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}
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static inline void devlink_port_unregister(struct devlink_port *devlink_port)
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{
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}
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static inline void devlink_port_type_eth_set(struct devlink_port *devlink_port,
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struct net_device *netdev)
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{
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}
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static inline void devlink_port_type_ib_set(struct devlink_port *devlink_port,
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struct ib_device *ibdev)
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{
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}
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static inline void devlink_port_type_clear(struct devlink_port *devlink_port)
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{
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}
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static inline void devlink_port_split_set(struct devlink_port *devlink_port,
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u32 split_group)
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{
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}
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static inline int devlink_sb_register(struct devlink *devlink,
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unsigned int sb_index, u32 size,
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u16 ingress_pools_count,
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u16 egress_pools_count,
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u16 ingress_tc_count,
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u16 egress_tc_count)
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{
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return 0;
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}
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static inline void devlink_sb_unregister(struct devlink *devlink,
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unsigned int sb_index)
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{
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}
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#endif
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#endif /* _NET_DEVLINK_H_ */
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