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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2018-2019 Intel Corporation
*/
#ifndef _RTE_VXLAN_H_
#define _RTE_VXLAN_H_
/**
* @file
*
* VXLAN-related definitions
*/
#include <stdint.h>
#include <rte_byteorder.h>
#include <rte_udp.h>
/** VXLAN default port. */
#define RTE_VXLAN_DEFAULT_PORT 4789
/** VXLAN GPE port. */
#define RTE_VXLAN_GPE_DEFAULT_PORT 4790
/**
* VXLAN protocol header.
* Contains the 8-bit flag, 24-bit VXLAN Network Identifier and
* Reserved fields (24 bits and 8 bits)
*/
__extension__ /* no named member in struct */
struct rte_vxlan_hdr {
union {
rte_be32_t vx_flags; /**< flags (8 bits) + extensions (24 bits). */
struct {
union {
uint8_t flags; /**< Default is I bit, others are extensions. */
struct {
#if RTE_BYTE_ORDER == RTE_BIG_ENDIAN
uint8_t flag_g:1, /**< GBP bit. */
flag_rsvd:1, /* Reserved. */
flag_ver:2, /**< GPE Protocol Version. */
flag_i:1, /**< VNI bit. */
flag_p:1, /**< GPE Next Protocol bit. */
flag_b:1, /**< GPE Ingress-Replicated BUM. */
flag_o:1; /**< GPE OAM Packet bit. */
#elif RTE_BYTE_ORDER == RTE_LITTLE_ENDIAN
uint8_t flag_o:1,
flag_b:1,
flag_p:1,
flag_i:1,
flag_ver:2,
flag_rsvd:1,
flag_g:1;
#endif
} __rte_packed;
}; /* end of 1st byte */
union {
uint8_t rsvd0[3]; /* Reserved for extensions. */
struct {
#if RTE_BYTE_ORDER == RTE_BIG_ENDIAN
uint8_t rsvd0_gbp1:1, /* Reserved. */
flag_d:1, /**< GBP Don't Learn bit. */
rsvd0_gbp2:2, /* Reserved. */
flag_a:1, /**< GBP Applied bit. */
rsvd0_gbp3:3; /* Reserved. */
#elif RTE_BYTE_ORDER == RTE_LITTLE_ENDIAN
uint8_t rsvd0_gbp3:3,
flag_a:1,
rsvd0_gbp2:2,
flag_d:1,
rsvd0_gbp1:1;
#endif
union {
uint16_t policy_id; /**< GBP Identifier. */
struct {
uint8_t rsvd0_gpe; /* Reserved. */
uint8_t proto; /**< GPE Next protocol. */
/* 0x01 : IPv4
* 0x02 : IPv6
* 0x03 : Ethernet
* 0x04 : Network Service Header
*/
} __rte_packed;
};
} __rte_packed;
};
} __rte_packed;
}; /* end of 1st 32-bit word */
union {
rte_be32_t vx_vni; /**< VNI (24 bits) + reserved (8 bits). */
struct {
uint8_t vni[3]; /**< VXLAN Identifier. */
union {
uint8_t rsvd1; /**< Reserved. */
uint8_t last_rsvd; /**< Reserved. */
};
} __rte_packed;
}; /* end of 2nd 32-bit word */
} __rte_packed;
/** VXLAN tunnel header length. */
#define RTE_ETHER_VXLAN_HLEN \
(sizeof(struct rte_udp_hdr) + sizeof(struct rte_vxlan_hdr))
/**
* @deprecated
* @see rte_vxlan_hdr
*
* VXLAN-GPE protocol header (draft-ietf-nvo3-vxlan-gpe-05).
* Contains the 8-bit flag, 8-bit next-protocol, 24-bit VXLAN Network
* Identifier and Reserved fields (16 bits and 8 bits).
*/
__extension__ /* no named member in struct */
struct rte_vxlan_gpe_hdr {
union {
struct {
uint8_t vx_flags; /**< flag (8). */
uint8_t reserved[2]; /**< Reserved (16). */
uint8_t protocol; /**< next-protocol (8). */
rte_be32_t vx_vni; /**< VNI (24) + Reserved (8). */
};
struct {
uint8_t flags; /**< Flags. */
uint8_t rsvd0[2]; /**< Reserved. */
uint8_t proto; /**< Next protocol. */
uint8_t vni[3]; /**< VXLAN identifier. */
uint8_t rsvd1; /**< Reserved. */
};
};
} __rte_packed;
/**
* @deprecated
* @see RTE_ETHER_VXLAN_HLEN
*
* VXLAN-GPE tunnel header length.
*/
#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 /**< IPv4 Protocol. */
#define RTE_VXLAN_GPE_TYPE_IPV6 2 /**< IPv6 Protocol. */
#define RTE_VXLAN_GPE_TYPE_ETH 3 /**< Ethernet Protocol. */
#define RTE_VXLAN_GPE_TYPE_NSH 4 /**< NSH Protocol. */
#define RTE_VXLAN_GPE_TYPE_MPLS 5 /**< MPLS Protocol. */
#define RTE_VXLAN_GPE_TYPE_GBP 6 /**< GBP Protocol. */
#define RTE_VXLAN_GPE_TYPE_VBNG 7 /**< vBNG Protocol. */
#endif /* RTE_VXLAN_H_ */
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