net/dsa/trace.h

Source file repositories/reference/linux-study-clean/net/dsa/trace.h

File Facts

System
Linux kernel
Corpus path
net/dsa/trace.h
Extension
.h
Size
12805 bytes
Lines
448
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.

Dependency Surface

Detected Declarations

Annotated Snippet

#undef TRACE_SYSTEM
#define TRACE_SYSTEM	dsa

#if !defined(_NET_DSA_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
#define _NET_DSA_TRACE_H

#include <net/dsa.h>
#include <net/switchdev.h>
#include <linux/etherdevice.h>
#include <linux/if_bridge.h>
#include <linux/refcount.h>
#include <linux/tracepoint.h>

/* Enough to fit "bridge %s num %d" where num has 3 digits */
#define DSA_DB_BUFSIZ	(IFNAMSIZ + 16)

void dsa_db_print(const struct dsa_db *db, char buf[DSA_DB_BUFSIZ]);
const char *dsa_port_kind(const struct dsa_port *dp);

DECLARE_EVENT_CLASS(dsa_port_addr_op_hw,

	TP_PROTO(const struct dsa_port *dp, const unsigned char *addr, u16 vid,
		 const struct dsa_db *db, int err),

	TP_ARGS(dp, addr, vid, db, err),

	TP_STRUCT__entry(
		__string(dev, dev_name(dp->ds->dev))
		__string(kind, dsa_port_kind(dp))
		__field(int, port)
		__array(unsigned char, addr, ETH_ALEN)
		__field(u16, vid)
		__array(char, db_buf, DSA_DB_BUFSIZ)
		__field(int, err)
	),

	TP_fast_assign(
		__assign_str(dev);
		__assign_str(kind);
		__entry->port = dp->index;
		ether_addr_copy(__entry->addr, addr);
		__entry->vid = vid;
		dsa_db_print(db, __entry->db_buf);
		__entry->err = err;
	),

	TP_printk("%s %s port %d addr %pM vid %u db \"%s\" err %d",
		  __get_str(dev), __get_str(kind), __entry->port, __entry->addr,
		  __entry->vid, __entry->db_buf, __entry->err)
);

/* Add unicast/multicast address to hardware, either on user ports
 * (where no refcounting is kept), or on shared ports when the entry
 * is first seen and its refcount is 1.
 */
DEFINE_EVENT(dsa_port_addr_op_hw, dsa_fdb_add_hw,
	     TP_PROTO(const struct dsa_port *dp, const unsigned char *addr,
		      u16 vid, const struct dsa_db *db, int err),
	     TP_ARGS(dp, addr, vid, db, err));

DEFINE_EVENT(dsa_port_addr_op_hw, dsa_mdb_add_hw,
	     TP_PROTO(const struct dsa_port *dp, const unsigned char *addr,
		      u16 vid, const struct dsa_db *db, int err),
	     TP_ARGS(dp, addr, vid, db, err));

/* Delete unicast/multicast address from hardware, either on user ports or
 * when the refcount on shared ports reaches 0
 */
DEFINE_EVENT(dsa_port_addr_op_hw, dsa_fdb_del_hw,
	     TP_PROTO(const struct dsa_port *dp, const unsigned char *addr,
		      u16 vid, const struct dsa_db *db, int err),
	     TP_ARGS(dp, addr, vid, db, err));

DEFINE_EVENT(dsa_port_addr_op_hw, dsa_mdb_del_hw,
	     TP_PROTO(const struct dsa_port *dp, const unsigned char *addr,
		      u16 vid, const struct dsa_db *db, int err),
	     TP_ARGS(dp, addr, vid, db, err));

DECLARE_EVENT_CLASS(dsa_port_addr_op_refcount,

	TP_PROTO(const struct dsa_port *dp, const unsigned char *addr, u16 vid,
		 const struct dsa_db *db, const refcount_t *refcount),

	TP_ARGS(dp, addr, vid, db, refcount),

	TP_STRUCT__entry(
		__string(dev, dev_name(dp->ds->dev))
		__string(kind, dsa_port_kind(dp))
		__field(int, port)
		__array(unsigned char, addr, ETH_ALEN)

Annotation

Implementation Notes