Contributors: 7
	  
        
          | Author | 
          Tokens | 
          Token Proportion | 
          Commits | 
          Commit Proportion | 
        
	  
	  
        
        
          | George McCollister | 
          51 | 
          42.15% | 
          1 | 
          7.14% | 
        
        
          | Arvid Brodin | 
          33 | 
          27.27% | 
          2 | 
          14.29% | 
        
        
          | Murali Karicheri | 
          15 | 
          12.40% | 
          3 | 
          21.43% | 
        
        
          | Taehee Yoo | 
          10 | 
          8.26% | 
          3 | 
          21.43% | 
        
        
          | Jakub Kiciński | 
          6 | 
          4.96% | 
          1 | 
          7.14% | 
        
        
          | Linus Torvalds (pre-git) | 
          5 | 
          4.13% | 
          3 | 
          21.43% | 
        
        
          | Michal Kubeček | 
          1 | 
          0.83% | 
          1 | 
          7.14% | 
        
	  
	  
        
          | Total | 
          121 | 
           | 
          14 | 
           | 
	    
	  
    
 
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_IF_HSR_H_
#define _LINUX_IF_HSR_H_
#include <linux/types.h>
struct net_device;
/* used to differentiate various protocols */
enum hsr_version {
	HSR_V0 = 0,
	HSR_V1,
	PRP_V1,
};
/* HSR Tag.
 * As defined in IEC-62439-3:2010, the HSR tag is really { ethertype = 0x88FB,
 * path, LSDU_size, sequence Nr }. But we let eth_header() create { h_dest,
 * h_source, h_proto = 0x88FB }, and add { path, LSDU_size, sequence Nr,
 * encapsulated protocol } instead.
 *
 * Field names as defined in the IEC:2010 standard for HSR.
 */
struct hsr_tag {
	__be16		path_and_LSDU_size;
	__be16		sequence_nr;
	__be16		encap_proto;
} __packed;
#define HSR_HLEN	6
#if IS_ENABLED(CONFIG_HSR)
extern bool is_hsr_master(struct net_device *dev);
extern int hsr_get_version(struct net_device *dev, enum hsr_version *ver);
#else
static inline bool is_hsr_master(struct net_device *dev)
{
	return false;
}
static inline int hsr_get_version(struct net_device *dev,
				  enum hsr_version *ver)
{
	return -EINVAL;
}
#endif /* CONFIG_HSR */
#endif /*_LINUX_IF_HSR_H_*/