[linux.git] / net / hsr / hsr_slave.h

/* Copyright 2011-2014 Autronica Fire and Security AS
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the Free
 * Software Foundation; either version 2 of the License, or (at your option)
 * any later version.
 *
 * Author(s):
 *	2011-2014 Arvid Brodin, [email protected]
 */

#ifndef __HSR_SLAVE_H
#define __HSR_SLAVE_H

#include <linux/skbuff.h>
#include <linux/netdevice.h>
#include <linux/rtnetlink.h>
#include "hsr_main.h"

int hsr_add_port(struct hsr_priv *hsr, struct net_device *dev,
		 enum hsr_port_type pt);
void hsr_del_port(struct hsr_port *port);
bool hsr_port_exists(const struct net_device *dev);

static inline struct hsr_port *hsr_port_get_rtnl(const struct net_device *dev)
{
	ASSERT_RTNL();
	return hsr_port_exists(dev) ?
				rtnl_dereference(dev->rx_handler_data) : NULL;
}

static inline struct hsr_port *hsr_port_get_rcu(const struct net_device *dev)
{
	return hsr_port_exists(dev) ?
				rcu_dereference(dev->rx_handler_data) : NULL;
}

#endif /* __HSR_SLAVE_H */
Commit	Line	Data
81ba6afd AB	1	/* Copyright 2011-2014 Autronica Fire and Security AS
	2	*
	3	* This program is free software; you can redistribute it and/or modify it
	4	* under the terms of the GNU General Public License as published by the Free
	5	* Software Foundation; either version 2 of the License, or (at your option)
	6	* any later version.
	7	*
	8	* Author(s):
	9	* 2011-2014 Arvid Brodin, [email protected]
	10	*/
	11
	12	#ifndef __HSR_SLAVE_H
	13	#define __HSR_SLAVE_H
	14
	15	#include <linux/skbuff.h>
	16	#include <linux/netdevice.h>
c5a75911	17	#include <linux/rtnetlink.h>
51f3c605	18	#include "hsr_main.h"
81ba6afd	19
c5a75911 AB	20	int hsr_add_port(struct hsr_priv hsr, struct net_device dev,
	21	enum hsr_port_type pt);
	22	void hsr_del_port(struct hsr_port *port);
f266a683	23	bool hsr_port_exists(const struct net_device *dev);
c5a75911 AB	24
	25	static inline struct hsr_port hsr_port_get_rtnl(const struct net_device dev)
	26	{
	27	ASSERT_RTNL();
	28	return hsr_port_exists(dev) ?
	29	rtnl_dereference(dev->rx_handler_data) : NULL;
	30	}
	31
	32	static inline struct hsr_port hsr_port_get_rcu(const struct net_device dev)
	33	{
	34	return hsr_port_exists(dev) ?
	35	rcu_dereference(dev->rx_handler_data) : NULL;
	36	}
	37
81ba6afd	38	#endif /* __HSR_SLAVE_H */