rte_cksum.h File Reference

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

Go to the source code of this file.

Functions
static uint16_t	rte_raw_cksum (const void *buf, size_t len)
static int	rte_raw_cksum_mbuf (const struct rte_mbuf *m, uint32_t off, uint32_t len, uint16_t *cksum)

Detailed Description

Protocol independent checksum utilities.

Definition in file rte_cksum.h.

Function Documentation

rte_raw_cksum()

static uint16_t rte_raw_cksum ( const void *  buf, size_t  len  )

inlinestatic

Process the non-complemented checksum of a buffer.

Parameters

buf	Pointer to the buffer.
len	Length of the buffer.

Returns

The non-complemented checksum.

Definition at line 94 of file rte_cksum.h.

rte_raw_cksum_mbuf()

static int rte_raw_cksum_mbuf ( const struct rte_mbuf *  m, uint32_t  off, uint32_t  len, uint16_t *  cksum  )

inlinestatic

Compute the raw (non complemented) checksum of a packet.

Parameters

m	The pointer to the mbuf.
off	The offset in bytes to start the checksum.
len	The length in bytes of the data to checksum.
cksum	A pointer to the checksum, filled on success.

Returns

0 on success, -1 on error (bad length or offset).

Definition at line 117 of file rte_cksum.h.