linux/net/hsr/hsr_slave.h
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   1/* SPDX-License-Identifier: GPL-2.0 */
   2/* Copyright 2011-2014 Autronica Fire and Security AS
   3 *
   4 *      2011-2014 Arvid Brodin, arvid.brodin@alten.se
   5 *
   6 * include file for HSR and PRP.
   7 */
   8
   9#ifndef __HSR_SLAVE_H
  10#define __HSR_SLAVE_H
  11
  12#include <linux/skbuff.h>
  13#include <linux/netdevice.h>
  14#include <linux/rtnetlink.h>
  15#include "hsr_main.h"
  16
  17int hsr_add_port(struct hsr_priv *hsr, struct net_device *dev,
  18                 enum hsr_port_type pt, struct netlink_ext_ack *extack);
  19void hsr_del_port(struct hsr_port *port);
  20bool hsr_port_exists(const struct net_device *dev);
  21
  22static inline struct hsr_port *hsr_port_get_rtnl(const struct net_device *dev)
  23{
  24        ASSERT_RTNL();
  25        return hsr_port_exists(dev) ?
  26                                rtnl_dereference(dev->rx_handler_data) : NULL;
  27}
  28
  29static inline struct hsr_port *hsr_port_get_rcu(const struct net_device *dev)
  30{
  31        return hsr_port_exists(dev) ?
  32                                rcu_dereference(dev->rx_handler_data) : NULL;
  33}
  34
  35bool hsr_invalid_dan_ingress_frame(__be16 protocol);
  36
  37#endif /* __HSR_SLAVE_H */
  38