include/net/dcbnl.h

File Facts

System

Linux kernel

Corpus path

include/net/dcbnl.h

Extension

.h

Size

5104 bytes

Lines

137

Domain

Networking Core

Bucket

Sockets, Protocols, Packet Path, And Network Policy

Inferred role

Networking Core: implementation source

Status

source implementation candidate

Why This File Exists

Networking stack implementation surface: socket APIs, protocol dispatch, packet flow, routing, filtering, and network namespaces.

• Networking stack implementation surface: socket APIs, protocol dispatch, packet flow, routing, filtering, and network namespaces.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/dcbnl.h

Detected Declarations

• struct net_device
• struct dcb_app_type
• struct dcb_rewr_prio_pcp_map
• struct dcb_ieee_app_prio_map
• struct dcb_ieee_app_dscp_map
• struct dcbnl_rtnl_ops

Annotated Snippet

struct dcb_app_type {
	int	ifindex;
	struct dcb_app	  app;
	struct list_head  list;
	u8	dcbx;
};

u16 dcb_getrewr(struct net_device *dev, struct dcb_app *app);
int dcb_setrewr(struct net_device *dev, struct dcb_app *app);
int dcb_delrewr(struct net_device *dev, struct dcb_app *app);

int dcb_setapp(struct net_device *, struct dcb_app *);
u8 dcb_getapp(struct net_device *, struct dcb_app *);
int dcb_ieee_setapp(struct net_device *, struct dcb_app *);
int dcb_ieee_delapp(struct net_device *, struct dcb_app *);
u8 dcb_ieee_getapp_mask(struct net_device *, struct dcb_app *);

struct dcb_rewr_prio_pcp_map {
	u16 map[IEEE_8021QAZ_MAX_TCS];
};

void dcb_getrewr_prio_pcp_mask_map(const struct net_device *dev,
				   struct dcb_rewr_prio_pcp_map *p_map);

struct dcb_ieee_app_prio_map {
	u64 map[IEEE_8021QAZ_MAX_TCS];
};
void dcb_ieee_getapp_prio_dscp_mask_map(const struct net_device *dev,
					struct dcb_ieee_app_prio_map *p_map);

void dcb_getrewr_prio_dscp_mask_map(const struct net_device *dev,
				    struct dcb_ieee_app_prio_map *p_map);

struct dcb_ieee_app_dscp_map {
	u8 map[64];
};
void dcb_ieee_getapp_dscp_prio_mask_map(const struct net_device *dev,
					struct dcb_ieee_app_dscp_map *p_map);
u8 dcb_ieee_getapp_default_prio_mask(const struct net_device *dev);

int dcbnl_ieee_notify(struct net_device *dev, int event, int cmd,
		      u32 seq, u32 pid);
int dcbnl_cee_notify(struct net_device *dev, int event, int cmd,
		     u32 seq, u32 pid);

/*
 * Ops struct for the netlink callbacks.  Used by DCB-enabled drivers through
 * the netdevice struct.
 */
struct dcbnl_rtnl_ops {
	/* IEEE 802.1Qaz std */
	int (*ieee_getets) (struct net_device *, struct ieee_ets *);
	int (*ieee_setets) (struct net_device *, struct ieee_ets *);
	int (*ieee_getmaxrate) (struct net_device *, struct ieee_maxrate *);
	int (*ieee_setmaxrate) (struct net_device *, struct ieee_maxrate *);
	int (*ieee_getqcn) (struct net_device *, struct ieee_qcn *);
	int (*ieee_setqcn) (struct net_device *, struct ieee_qcn *);
	int (*ieee_getqcnstats) (struct net_device *, struct ieee_qcn_stats *);
	int (*ieee_getpfc) (struct net_device *, struct ieee_pfc *);
	int (*ieee_setpfc) (struct net_device *, struct ieee_pfc *);
	int (*ieee_getapp) (struct net_device *, struct dcb_app *);
	int (*ieee_setapp) (struct net_device *, struct dcb_app *);
	int (*ieee_delapp) (struct net_device *, struct dcb_app *);
	int (*ieee_peer_getets) (struct net_device *, struct ieee_ets *);
	int (*ieee_peer_getpfc) (struct net_device *, struct ieee_pfc *);

	/* CEE std */
	u8   (*getstate)(struct net_device *);
	u8   (*setstate)(struct net_device *, u8);
	void (*getpermhwaddr)(struct net_device *, u8 *);
	void (*setpgtccfgtx)(struct net_device *, int, u8, u8, u8, u8);
	void (*setpgbwgcfgtx)(struct net_device *, int, u8);
	void (*setpgtccfgrx)(struct net_device *, int, u8, u8, u8, u8);
	void (*setpgbwgcfgrx)(struct net_device *, int, u8);
	void (*getpgtccfgtx)(struct net_device *, int, u8 *, u8 *, u8 *, u8 *);
	void (*getpgbwgcfgtx)(struct net_device *, int, u8 *);
	void (*getpgtccfgrx)(struct net_device *, int, u8 *, u8 *, u8 *, u8 *);
	void (*getpgbwgcfgrx)(struct net_device *, int, u8 *);
	void (*setpfccfg)(struct net_device *, int, u8);
	void (*getpfccfg)(struct net_device *, int, u8 *);
	u8   (*setall)(struct net_device *);
	u8   (*getcap)(struct net_device *, int, u8 *);
	int  (*getnumtcs)(struct net_device *, int, u8 *);
	int  (*setnumtcs)(struct net_device *, int, u8);
	u8   (*getpfcstate)(struct net_device *);
	void (*setpfcstate)(struct net_device *, u8);
	void (*getbcncfg)(struct net_device *, int, u32 *);
	void (*setbcncfg)(struct net_device *, int, u32);
	void (*getbcnrp)(struct net_device *, int, u8 *);
	void (*setbcnrp)(struct net_device *, int, u8);

Annotation

• Immediate include surface: `linux/dcbnl.h`.
• Detected declarations: `struct net_device`, `struct dcb_app_type`, `struct dcb_rewr_prio_pcp_map`, `struct dcb_ieee_app_prio_map`, `struct dcb_ieee_app_dscp_map`, `struct dcbnl_rtnl_ops`.
• Atlas domain: Networking Core / Sockets, Protocols, Packet Path, And Network Policy.
• 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.