DPDK: lib/librte_port/rte_port.h File Reference

DPDK 2.1.0

#include <stdint.h>
#include <rte_mbuf.h>

Go to the source code of this file.

Data Structures
struct	rte_port_in_stats
struct	rte_port_in_ops
struct	rte_port_out_stats
struct	rte_port_out_ops

Macros
#define	RTE_PORT_IN_BURST_SIZE_MAX 64

#define	RTE_MBUF_METADATA_UINT8_PTR(mbuf, offset) (&((uint8_t *) &(mbuf)[1])[offset])
#define	RTE_MBUF_METADATA_UINT16_PTR(mbuf, offset) ((uint16_t *) RTE_MBUF_METADATA_UINT8_PTR(mbuf, offset))
#define	RTE_MBUF_METADATA_UINT32_PTR(mbuf, offset) ((uint32_t *) RTE_MBUF_METADATA_UINT8_PTR(mbuf, offset))
#define	RTE_MBUF_METADATA_UINT64_PTR(mbuf, offset) ((uint64_t *) RTE_MBUF_METADATA_UINT8_PTR(mbuf, offset))
#define	RTE_MBUF_METADATA_UINT8(mbuf, offset) (*RTE_MBUF_METADATA_UINT8_PTR(mbuf, offset))
#define	RTE_MBUF_METADATA_UINT16(mbuf, offset) (*RTE_MBUF_METADATA_UINT16_PTR(mbuf, offset))
#define	RTE_MBUF_METADATA_UINT32(mbuf, offset) (*RTE_MBUF_METADATA_UINT32_PTR(mbuf, offset))
#define	RTE_MBUF_METADATA_UINT64(mbuf, offset) (*RTE_MBUF_METADATA_UINT64_PTR(mbuf, offset))

Typedefs
typedef void (	rte_port_in_op_create )(void *params, int socket_id)
typedef int(*	rte_port_in_op_free )(void *port)
typedef int(*	rte_port_in_op_rx )(void port, struct rte_mbuf *pkts, uint32_t n_pkts)
typedef int(*	rte_port_in_op_stats_read )(void port, struct rte_port_in_stats stats, int clear)
typedef void (	rte_port_out_op_create )(void *params, int socket_id)
typedef int(*	rte_port_out_op_free )(void *port)
typedef int(*	rte_port_out_op_tx )(void port, struct rte_mbuf pkt)
typedef int(*	rte_port_out_op_tx_bulk )(void port, struct rte_mbuf *pkt, uint64_t pkts_mask)
typedef int(*	rte_port_out_op_flush )(void *port)
typedef int(*	rte_port_out_op_stats_read )(void port, struct rte_port_out_stats stats, int clear)

Detailed Description

RTE Port

This tool is part of the Intel DPDK Packet Framework tool suite and provides a standard interface to implement different types of packet ports.

Definition in file rte_port.h.

Macro Definition Documentation

#define RTE_MBUF_METADATA_UINT8_PTR	(		mbuf,
			offset
	)		(&((uint8_t *) &(mbuf)[1])[offset])

Macros to allow accessing metadata stored in the mbuf headroom just beyond the end of the mbuf data structure returned by a port

Definition at line 57 of file rte_port.h.

#define RTE_MBUF_METADATA_UINT16_PTR	(		mbuf,
			offset
	)		((uint16_t *) RTE_MBUF_METADATA_UINT8_PTR(mbuf, offset))

Macros to allow accessing metadata stored in the mbuf headroom just beyond the end of the mbuf data structure returned by a port

Definition at line 59 of file rte_port.h.

#define RTE_MBUF_METADATA_UINT32_PTR	(		mbuf,
			offset
	)		((uint32_t *) RTE_MBUF_METADATA_UINT8_PTR(mbuf, offset))

Macros to allow accessing metadata stored in the mbuf headroom just beyond the end of the mbuf data structure returned by a port

Definition at line 61 of file rte_port.h.

#define RTE_MBUF_METADATA_UINT64_PTR	(		mbuf,
			offset
	)		((uint64_t *) RTE_MBUF_METADATA_UINT8_PTR(mbuf, offset))

Macros to allow accessing metadata stored in the mbuf headroom just beyond the end of the mbuf data structure returned by a port

Definition at line 63 of file rte_port.h.

#define RTE_MBUF_METADATA_UINT8	(		mbuf,
			offset
	)		(*RTE_MBUF_METADATA_UINT8_PTR(mbuf, offset))

Macros to allow accessing metadata stored in the mbuf headroom just beyond the end of the mbuf data structure returned by a port

Definition at line 66 of file rte_port.h.

#define RTE_MBUF_METADATA_UINT16	(		mbuf,
			offset
	)		(*RTE_MBUF_METADATA_UINT16_PTR(mbuf, offset))

Macros to allow accessing metadata stored in the mbuf headroom just beyond the end of the mbuf data structure returned by a port

Definition at line 68 of file rte_port.h.

#define RTE_MBUF_METADATA_UINT32	(		mbuf,
			offset
	)		(*RTE_MBUF_METADATA_UINT32_PTR(mbuf, offset))

Macros to allow accessing metadata stored in the mbuf headroom just beyond the end of the mbuf data structure returned by a port

Definition at line 70 of file rte_port.h.

#define RTE_MBUF_METADATA_UINT64	(		mbuf,
			offset
	)		(*RTE_MBUF_METADATA_UINT64_PTR(mbuf, offset))

Macros to allow accessing metadata stored in the mbuf headroom just beyond the end of the mbuf data structure returned by a port

Definition at line 72 of file rte_port.h.

#define RTE_PORT_IN_BURST_SIZE_MAX 64

Maximum number of packets read from any input port in a single burst.

Cannot be changed.

Definition at line 82 of file rte_port.h.

Typedef Documentation

typedef void*(* rte_port_in_op_create)(void *params, int socket_id)

Input port create

Parameters

params	Parameters for input port creation
socket_id	CPU socket ID (e.g. for memory allocation purpose)

Returns: Handle to input port instance

Definition at line 100 of file rte_port.h.

typedef int(* rte_port_in_op_free)(void *port)

Input port free

Parameters

port	Handle to input port instance

Returns: 0 on success, error code otherwise

Definition at line 110 of file rte_port.h.

typedef int(* rte_port_in_op_rx)(void *port, struct rte_mbuf **pkts, uint32_t n_pkts)

Input port packet burst RX

Parameters

port	Handle to input port instance
pkts	Burst of input packets
n_pkts	Number of packets in the input burst

Returns: 0 on success, error code otherwise

Definition at line 124 of file rte_port.h.

typedef int(* rte_port_in_op_stats_read)(void *port, struct rte_port_in_stats *stats, int clear)

Input port stats get

Parameters

port	Handle to output port instance
stats	Handle to port_in stats struct to copy data
clear	Flag indicating that stats should be cleared after read

Returns: Error code or 0 on success.

Definition at line 142 of file rte_port.h.

typedef void*(* rte_port_out_op_create)(void *params, int socket_id)

Output port create

Parameters

params	Parameters for output port creation
socket_id	CPU socket ID (e.g. for memory allocation purpose)

Returns: Handle to output port instance

Definition at line 175 of file rte_port.h.

typedef int(* rte_port_out_op_free)(void *port)

Output port free

Parameters

port	Handle to output port instance

Returns: 0 on success, error code otherwise

Definition at line 185 of file rte_port.h.

typedef int(* rte_port_out_op_tx)(void *port, struct rte_mbuf *pkt)

Output port single packet TX

Parameters

port	Handle to output port instance
pkt	Input packet

Returns: 0 on success, error code otherwise

Definition at line 197 of file rte_port.h.

typedef int(* rte_port_out_op_tx_bulk)(void *port, struct rte_mbuf **pkt, uint64_t pkts_mask)

Output port packet burst TX

Parameters

port	Handle to output port instance
pkts	Burst of input packets specified as array of up to 64 pointers to struct rte_mbuf
pkts_mask	64-bit bitmask specifying which packets in the input burst are valid. When pkts_mask bit n is set, then element n of pkts array is pointing to a valid packet. Otherwise, element n of pkts array will not be accessed.

Returns: 0 on success, error code otherwise

Definition at line 216 of file rte_port.h.

typedef int(* rte_port_out_op_flush)(void *port)

Output port flush

Parameters

port	Handle to output port instance

Returns: 0 on success, error code otherwise

Definition at line 229 of file rte_port.h.

typedef int(* rte_port_out_op_stats_read)(void *port, struct rte_port_out_stats *stats, int clear)

Output port stats read

Parameters

port	Handle to output port instance
stats	Handle to port_out stats struct to copy data
clear	Flag indicating that stats should be cleared after read

Returns: Error code or 0 on success.

Definition at line 244 of file rte_port.h.