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/* 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 */
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