/* SPDX-License-Identifier: GPL-2.0 */ /* * Management Component Transport Protocol (MCTP) - device * definitions. * * Copyright (c) 2021 Code Construct * Copyright (c) 2021 Google */ #ifndef __NET_MCTPDEVICE_H #define __NET_MCTPDEVICE_H #include <linux/list.h> #include <linux/types.h> #include <linux/refcount.h> struct mctp_sk_key; struct mctp_dev { struct net_device *dev; refcount_t refs; unsigned int net; const struct mctp_netdev_ops *ops; /* Only modified under RTNL. Reads have addrs_lock held */ u8 *addrs; size_t num_addrs; spinlock_t addrs_lock; struct rcu_head rcu; }; struct mctp_netdev_ops { void (*release_flow)(struct mctp_dev *dev, struct mctp_sk_key *key); }; #define MCTP_INITIAL_DEFAULT_NET 1 struct mctp_dev *mctp_dev_get_rtnl(const struct net_device *dev); struct mctp_dev *__mctp_dev_get(const struct net_device *dev); int mctp_register_netdev(struct net_device *dev, const struct mctp_netdev_ops *ops); void mctp_unregister_netdev(struct net_device *dev); void mctp_dev_hold(struct mctp_dev *mdev); void mctp_dev_put(struct mctp_dev *mdev); void mctp_dev_set_key(struct mctp_dev *dev, struct mctp_sk_key *key); void mctp_dev_release_key(struct mctp_dev *dev, struct mctp_sk_key *key); #endif /* __NET_MCTPDEVICE_H */