include/linux/if_hsr.h

File Facts

System

Linux kernel

Corpus path

include/linux/if_hsr.h

Extension

.h

Size

1799 bytes

Lines

74

Domain

Core OS

Bucket

Core Kernel Interface

Inferred role

Core OS: implementation source

Status

source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

• Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/types.h

Detected Declarations

• struct net_device
• struct hsr_tag
• enum hsr_version
• enum hsr_port_type
• function is_hsr_master
• function hsr_get_version
• function hsr_get_port_type

Annotated Snippet

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);
struct net_device *hsr_get_port_ndev(struct net_device *ndev,
				     enum hsr_port_type pt);
int hsr_get_port_type(struct net_device *hsr_dev, struct net_device *dev,
		      enum hsr_port_type *type);
#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;
}

static inline struct net_device *hsr_get_port_ndev(struct net_device *ndev,
						   enum hsr_port_type pt)
{
	return ERR_PTR(-EINVAL);
}

static inline int hsr_get_port_type(struct net_device *hsr_dev,
				    struct net_device *dev,
				    enum hsr_port_type *type)
{
	return -EINVAL;
}
#endif /* CONFIG_HSR */

#endif /*_LINUX_IF_HSR_H_*/

Annotation

• Immediate include surface: `linux/types.h`.
• Detected declarations: `struct net_device`, `struct hsr_tag`, `enum hsr_version`, `enum hsr_port_type`, `function is_hsr_master`, `function hsr_get_version`, `function hsr_get_port_type`.
• Atlas domain: Core OS / Core Kernel Interface.
• Implementation status: source implementation candidate.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.