eth.h

Go to the documentation of this file.

/* SPDX-License-Identifier: BSD-3-Clause
 * Copyright (c) 2014-2018 Linaro Limited
 */
 
#ifndef ODPH_ETH_H_
#define ODPH_ETH_H_
 
#include <odp_api.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
#define ODPH_ETHADDR_LEN     6    
#define ODPH_ETHHDR_LEN      14   
#define ODPH_VLANHDR_LEN     4    
#define ODPH_ETH_LEN_MIN     60   
#define ODPH_ETH_LEN_MIN_CRC 64   
#define ODPH_ETH_LEN_MAX     1514 
#define ODPH_ETH_LEN_MAX_CRC 1518 
/* The two byte odph_vlanhdr_t tci field is composed of the following three
 * subfields - a three bit Priority Code Point (PCP), a one bit Drop
 * Eligibility Indicator (DEI) and a twelve bit VLAN Identifier (VID).  The
 * following constants can be used to extract or modify these subfields, once
 * the tci field has been read in and converted to host byte order.  Note
 * that the DEI subfield used to be the CFI bit.
 */
#define ODPH_VLANHDR_MAX_PRIO   7      
#define ODPH_VLANHDR_PCP_MASK   0xE000 
#define ODPH_VLANHDR_PCP_SHIFT  13     
#define ODPH_VLANHDR_DEI_MASK   0x1000 
#define ODPH_VLANHDR_DEI_SHIFT  12     
#define ODPH_VLANHDR_MAX_VID    0x0FFF 
#define ODPH_VLANHDR_VID_MASK   0x0FFF 
#define ODPH_VLANHDR_VID_SHIFT  0      
typedef struct ODP_PACKED {
    uint8_t addr[ODPH_ETHADDR_LEN]; 
} odph_ethaddr_t;
 
typedef struct ODP_PACKED {
    odph_ethaddr_t dst; 
    odph_ethaddr_t src; 
    odp_u16be_t type;   
} odph_ethhdr_t;
 
typedef struct ODP_PACKED {
    odp_u16be_t tci;   
    odp_u16be_t type;  
} odph_vlanhdr_t;
 
ODP_STATIC_ASSERT(sizeof(odph_ethaddr_t) == ODPH_ETHADDR_LEN,
          "ODPH_ETHADDR_T__SIZE_ERROR");
 
ODP_STATIC_ASSERT(sizeof(odph_ethhdr_t) == ODPH_ETHHDR_LEN,
          "ODPH_ETHHDR_T__SIZE_ERROR");
 
ODP_STATIC_ASSERT(sizeof(odph_vlanhdr_t) == ODPH_VLANHDR_LEN,
          "ODPH_VLANHDR_T__SIZE_ERROR");
/* Ethernet header Ether Type ('type') values, a selected few */
#define ODPH_ETHTYPE_IPV4       0x0800 
#define ODPH_ETHTYPE_ARP        0x0806 
#define ODPH_ETHTYPE_RARP       0x8035 
#define ODPH_ETHTYPE_VLAN       0x8100 
#define ODPH_ETHTYPE_VLAN_OUTER 0x88A8 
#define ODPH_ETHTYPE_IPV6       0x86dd 
#define ODPH_ETHTYPE_FLOW_CTRL  0x8808 
#define ODPH_ETHTYPE_MPLS       0x8847 
#define ODPH_ETHTYPE_MPLS_MCAST 0x8848 
#define ODPH_ETHTYPE_MACSEC     0x88E5 
#define ODPH_ETHTYPE_1588       0x88F7 
int odph_eth_addr_parse(odph_ethaddr_t *mac, const char *str);
 
#ifdef __cplusplus
}
#endif
 
#endif