mctpdevice.h (1294B)
1/* SPDX-License-Identifier: GPL-2.0 */ 2/* 3 * Management Component Transport Protocol (MCTP) - device 4 * definitions. 5 * 6 * Copyright (c) 2021 Code Construct 7 * Copyright (c) 2021 Google 8 */ 9 10#ifndef __NET_MCTPDEVICE_H 11#define __NET_MCTPDEVICE_H 12 13#include <linux/list.h> 14#include <linux/types.h> 15#include <linux/refcount.h> 16 17struct mctp_sk_key; 18 19struct mctp_dev { 20 struct net_device *dev; 21 22 refcount_t refs; 23 24 unsigned int net; 25 26 const struct mctp_netdev_ops *ops; 27 28 /* Only modified under RTNL. Reads have addrs_lock held */ 29 u8 *addrs; 30 size_t num_addrs; 31 spinlock_t addrs_lock; 32 33 struct rcu_head rcu; 34}; 35 36struct mctp_netdev_ops { 37 void (*release_flow)(struct mctp_dev *dev, 38 struct mctp_sk_key *key); 39}; 40 41#define MCTP_INITIAL_DEFAULT_NET 1 42 43struct mctp_dev *mctp_dev_get_rtnl(const struct net_device *dev); 44struct mctp_dev *__mctp_dev_get(const struct net_device *dev); 45 46int mctp_register_netdev(struct net_device *dev, 47 const struct mctp_netdev_ops *ops); 48void mctp_unregister_netdev(struct net_device *dev); 49 50void mctp_dev_hold(struct mctp_dev *mdev); 51void mctp_dev_put(struct mctp_dev *mdev); 52 53void mctp_dev_set_key(struct mctp_dev *dev, struct mctp_sk_key *key); 54void mctp_dev_release_key(struct mctp_dev *dev, struct mctp_sk_key *key); 55 56#endif /* __NET_MCTPDEVICE_H */