[mirror_ubuntu-jammy-kernel.git] / include / net / mctpdevice.h

/* 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_dev {
	struct net_device	*dev;

	unsigned int		net;

	/* Only modified under RTNL. Reads have addrs_lock held */
	u8			*addrs;
	size_t			num_addrs;
	spinlock_t		addrs_lock;

	struct rcu_head		rcu;
};

#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);

#endif /* __NET_MCTPDEVICE_H */
Commit	Line	Data
583be982 JK	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
	17	struct mctp_dev {
	18	struct net_device *dev;
	19
	20	unsigned int net;
	21
	22	/* Only modified under RTNL. Reads have addrs_lock held */
	23	u8 *addrs;
	24	size_t num_addrs;
	25	spinlock_t addrs_lock;
	26
	27	struct rcu_head rcu;
	28	};
	29
	30	#define MCTP_INITIAL_DEFAULT_NET 1
	31
	32	struct mctp_dev mctp_dev_get_rtnl(const struct net_device dev);
	33	struct mctp_dev __mctp_dev_get(const struct net_device dev);
	34
	35	#endif /* __NET_MCTPDEVICE_H */