numam-dpdk/lib/net/rte_gre.h
Bruce Richardson 99a2dd955f lib: remove librte_ prefix from directory names
There is no reason for the DPDK libraries to all have 'librte_' prefix on
the directory names. This prefix makes the directory names longer and also
makes it awkward to add features referring to individual libraries in the
build - should the lib names be specified with or without the prefix.
Therefore, we can just remove the library prefix and use the library's
unique name as the directory name, i.e. 'eal' rather than 'librte_eal'

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
2021-04-21 14:04:09 +02:00

56 lines
1.3 KiB
C

/* SPDX-License-Identifier: BSD-3-Clause
* Copyright 2016 6WIND S.A.
*/
#ifndef _RTE_GRE_H_
#define _RTE_GRE_H_
#include <stdint.h>
#include <rte_byteorder.h>
/**
* @file
*
* GRE headers definition.
*
* Generic Routing Encapsulation (GRE) is a tunneling protocol
* that can encapsulate a wide variety of network layer protocols
* inside virtual point-to-point links or point-to-multipoint links
* over an Internet Protocol network.
*/
#ifdef __cplusplus
extern "C" {
#endif
/**
* GRE Header
*/
__extension__
struct rte_gre_hdr {
#if RTE_BYTE_ORDER == RTE_LITTLE_ENDIAN
uint16_t res2:4; /**< Reserved */
uint16_t s:1; /**< Sequence Number Present bit */
uint16_t k:1; /**< Key Present bit */
uint16_t res1:1; /**< Reserved */
uint16_t c:1; /**< Checksum Present bit */
uint16_t ver:3; /**< Version Number */
uint16_t res3:5; /**< Reserved */
#elif RTE_BYTE_ORDER == RTE_BIG_ENDIAN
uint16_t c:1; /**< Checksum Present bit */
uint16_t res1:1; /**< Reserved */
uint16_t k:1; /**< Key Present bit */
uint16_t s:1; /**< Sequence Number Present bit */
uint16_t res2:4; /**< Reserved */
uint16_t res3:5; /**< Reserved */
uint16_t ver:3; /**< Version Number */
#endif
uint16_t proto; /**< Protocol Type */
} __rte_packed;
#ifdef __cplusplus
}
#endif
#endif /* RTE_GRE_H_ */