rte_vxlan.h

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/* SPDX-License-Identifier: BSD-3-Clause
 * Copyright(c) 2018-2019 Intel Corporation
 */

#ifndef _RTE_VXLAN_H_
#define _RTE_VXLAN_H_

#include <stdint.h>

#include <rte_byteorder.h>
#include <rte_udp.h>


#ifdef __cplusplus
extern "C" {
#endif

#define RTE_VXLAN_DEFAULT_PORT 4789
#define RTE_VXLAN_GPE_DEFAULT_PORT 4790

__extension__ /* no named member in struct */
struct rte_vxlan_hdr {
    union {
        struct {
            rte_be32_t vx_flags; 
            rte_be32_t vx_vni;   
        };
        struct {
            uint8_t    flags;    
            uint8_t    rsvd0[3]; 
            uint8_t    vni[3];   
            uint8_t    rsvd1;    
        };
    };
} __rte_packed;

#define RTE_ETHER_VXLAN_HLEN \
    (sizeof(struct rte_udp_hdr) + sizeof(struct rte_vxlan_hdr))


__extension__ /* no named member in struct */
struct rte_vxlan_gpe_hdr {
    union {
        struct {
            uint8_t vx_flags;    
            uint8_t reserved[2]; 
            uint8_t protocol;    
            rte_be32_t vx_vni;   
        };
        struct {
            uint8_t flags;    
            uint8_t rsvd0[2]; 
            uint8_t proto;    
            uint8_t vni[3];   
            uint8_t rsvd1;    
        };
    };
} __rte_packed;

#define RTE_ETHER_VXLAN_GPE_HLEN (sizeof(struct rte_udp_hdr) + \
        sizeof(struct rte_vxlan_gpe_hdr))

/* VXLAN-GPE next protocol types */
#define RTE_VXLAN_GPE_TYPE_IPV4 1 
#define RTE_VXLAN_GPE_TYPE_IPV6 2 
#define RTE_VXLAN_GPE_TYPE_ETH  3 
#define RTE_VXLAN_GPE_TYPE_NSH  4 
#define RTE_VXLAN_GPE_TYPE_MPLS 5 
#define RTE_VXLAN_GPE_TYPE_GBP  6 
#define RTE_VXLAN_GPE_TYPE_VBNG 7 
#ifdef __cplusplus
}
#endif

#endif /* RTE_VXLAN_H_ */