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rte_ether.h(3) DPDK rte_ether.h(3) NAME rte_ether.h SYNOPSIS #include <assert.h> #include <stdalign.h> #include <stdint.h> #include <stdio.h> #include <rte_random.h> #include <rte_mbuf.h> #include <rte_byteorder.h> Data Structures struct rte_ether_hdr struct rte_vlan_hdr Macros #define RTE_ETHER_ADDR_LEN 6 #define RTE_ETHER_TYPE_LEN 2 #define RTE_ETHER_CRC_LEN 4 #define RTE_ETHER_HDR_LEN #define RTE_ETHER_MIN_LEN 64 #define RTE_ETHER_MAX_LEN 1518 #define RTE_ETHER_MTU #define RTE_VLAN_HLEN 4 #define RTE_ETHER_MAX_VLAN_FRAME_LEN (RTE_ETHER_MAX_LEN + RTE_VLAN_HLEN) #define RTE_ETHER_MAX_JUMBO_FRAME_LEN 0x3F00 #define RTE_ETHER_MAX_VLAN_ID 4095 #define RTE_ETHER_MIN_MTU 68 #define RTE_ETHER_LOCAL_ADMIN_ADDR 0x02 #define RTE_ETHER_GROUP_ADDR 0x01 #define RTE_ETHER_ADDR_PRT_FMT '%02X:%02X:%02X:%02X:%02X:%02X' #define RTE_ETHER_ADDR_BYTES(mac_addrs) #define RTE_ETHER_TYPE_IPV4 0x0800 #define RTE_ETHER_TYPE_IPV6 0x86DD #define RTE_ETHER_TYPE_ARP 0x0806 #define RTE_ETHER_TYPE_RARP 0x8035 #define RTE_ETHER_TYPE_VLAN 0x8100 #define RTE_ETHER_TYPE_QINQ 0x88A8 #define RTE_ETHER_TYPE_QINQ1 0x9100 #define RTE_ETHER_TYPE_QINQ2 0x9200 #define RTE_ETHER_TYPE_QINQ3 0x9300 #define RTE_ETHER_TYPE_PPPOE_DISCOVERY 0x8863 #define RTE_ETHER_TYPE_PPPOE_SESSION 0x8864 #define RTE_ETHER_TYPE_ETAG 0x893F #define RTE_ETHER_TYPE_1588 0x88F7 #define RTE_ETHER_TYPE_SLOW 0x8809 #define RTE_ETHER_TYPE_TEB 0x6558 #define RTE_ETHER_TYPE_LLDP 0x88CC #define RTE_ETHER_TYPE_MPLS 0x8847 #define RTE_ETHER_TYPE_MPLSM 0x8848 #define RTE_ETHER_TYPE_ECPRI 0xAEFE Functions struct __rte_aligned (2) rte_ether_addr static int rte_is_same_ether_addr (const struct rte_ether_addr *ea1, const struct rte_ether_addr *ea2) static int rte_is_zero_ether_addr (const struct rte_ether_addr *ea) static int rte_is_unicast_ether_addr (const struct rte_ether_addr *ea) static int rte_is_multicast_ether_addr (const struct rte_ether_addr *ea) static int rte_is_broadcast_ether_addr (const struct rte_ether_addr *ea) static int rte_is_universal_ether_addr (const struct rte_ether_addr *ea) static int rte_is_local_admin_ether_addr (const struct rte_ether_addr *ea) static int rte_is_valid_assigned_ether_addr (const struct rte_ether_addr *ea) void rte_eth_random_addr (uint8_t *addr) static void rte_ether_addr_copy (const struct rte_ether_addr *__restrict ea_from, struct rte_ether_addr *__restrict ea_to) void rte_ether_format_addr (char *buf, uint16_t size, const struct rte_ether_addr *eth_addr) int rte_ether_unformat_addr (const char *str, struct rte_ether_addr *eth_addr) static int rte_vlan_strip (struct rte_mbuf *m) static int rte_vlan_insert (struct rte_mbuf **m) Detailed Description Ethernet Helpers in RTE Definition in file rte_ether.h. Macro Definition Documentation #define RTE_ETHER_ADDR_LEN 6 Length of Ethernet address. Definition at line 27 of file rte_ether.h. #define RTE_ETHER_TYPE_LEN 2 Length of Ethernet type field. Definition at line 28 of file rte_ether.h. #define RTE_ETHER_CRC_LEN 4 Length of Ethernet CRC. Definition at line 29 of file rte_ether.h. #define RTE_ETHER_HDR_LEN Value:.PP (RTE_ETHER_ADDR_LEN * 2 + \ RTE_ETHER_TYPE_LEN) Length of Ethernet header. Definition at line 32 of file rte_ether.h. #define RTE_ETHER_MIN_LEN 64 Minimum frame len, including CRC. Definition at line 33 of file rte_ether.h. #define RTE_ETHER_MAX_LEN 1518 Maximum frame len, including CRC. Definition at line 34 of file rte_ether.h. #define RTE_ETHER_MTU Value:.PP (RTE_ETHER_MAX_LEN - RTE_ETHER_HDR_LEN - \ RTE_ETHER_CRC_LEN) Ethernet MTU. Definition at line 37 of file rte_ether.h. #define RTE_VLAN_HLEN 4 VLAN (IEEE 802.1Q) header length. Definition at line 39 of file rte_ether.h. #define RTE_ETHER_MAX_VLAN_FRAME_LEN (RTE_ETHER_MAX_LEN + RTE_VLAN_HLEN) Maximum VLAN frame length (excluding QinQ), including CRC. Definition at line 41 of file rte_ether.h. #define RTE_ETHER_MAX_JUMBO_FRAME_LEN 0x3F00 Maximum Jumbo frame length, including CRC. Definition at line 45 of file rte_ether.h. #define RTE_ETHER_MAX_VLAN_ID 4095 Maximum VLAN ID. Definition at line 47 of file rte_ether.h. #define RTE_ETHER_MIN_MTU 68 Minimum MTU for IPv4 packets, see RFC 791. Definition at line 49 of file rte_ether.h. #define RTE_ETHER_LOCAL_ADMIN_ADDR 0x02 Locally assigned Eth. address. Definition at line 85 of file rte_ether.h. #define RTE_ETHER_GROUP_ADDR 0x01 Multicast or broadcast Eth. address. Definition at line 86 of file rte_ether.h. #define RTE_ETHER_ADDR_PRT_FMT '%02X:%02X:%02X:%02X:%02X:%02X' Macro to print six-bytes of MAC address in hex format Definition at line 248 of file rte_ether.h. #define RTE_ETHER_ADDR_BYTES(mac_addrs) Value:.PP ((mac_addrs)->addr_bytes[0]), \ ((mac_addrs)->addr_bytes[1]), \ ((mac_addrs)->addr_bytes[2]), \ ((mac_addrs)->addr_bytes[3]), \ ((mac_addrs)->addr_bytes[4]), \ ((mac_addrs)->addr_bytes[5]) Macro to extract the MAC address bytes from rte_ether_addr struct Definition at line 252 of file rte_ether.h. #define RTE_ETHER_TYPE_IPV4 0x0800 IPv4 Protocol. Definition at line 329 of file rte_ether.h. #define RTE_ETHER_TYPE_IPV6 0x86DD IPv6 Protocol. Definition at line 330 of file rte_ether.h. #define RTE_ETHER_TYPE_ARP 0x0806 Arp Protocol. Definition at line 331 of file rte_ether.h. #define RTE_ETHER_TYPE_RARP 0x8035 Reverse Arp Protocol. Definition at line 332 of file rte_ether.h. #define RTE_ETHER_TYPE_VLAN 0x8100 IEEE 802.1Q VLAN tagging. Definition at line 333 of file rte_ether.h. #define RTE_ETHER_TYPE_QINQ 0x88A8 IEEE 802.1ad QinQ tagging. Definition at line 334 of file rte_ether.h. #define RTE_ETHER_TYPE_QINQ1 0x9100 Deprecated QinQ VLAN. Definition at line 335 of file rte_ether.h. #define RTE_ETHER_TYPE_QINQ2 0x9200 Deprecated QinQ VLAN. Definition at line 336 of file rte_ether.h. #define RTE_ETHER_TYPE_QINQ3 0x9300 Deprecated QinQ VLAN. Definition at line 337 of file rte_ether.h. #define RTE_ETHER_TYPE_PPPOE_DISCOVERY 0x8863 PPPoE Discovery Stage. Definition at line 338 of file rte_ether.h. #define RTE_ETHER_TYPE_PPPOE_SESSION 0x8864 PPPoE Session Stage. Definition at line 339 of file rte_ether.h. #define RTE_ETHER_TYPE_ETAG 0x893F IEEE 802.1BR E-Tag. Definition at line 340 of file rte_ether.h. #define RTE_ETHER_TYPE_1588 0x88F7 IEEE 802.1AS 1588 Precise Time Protocol. Definition at line 342 of file rte_ether.h. #define RTE_ETHER_TYPE_SLOW 0x8809 Slow protocols (LACP and Marker). Definition at line 343 of file rte_ether.h. #define RTE_ETHER_TYPE_TEB 0x6558 Transparent Ethernet Bridging. Definition at line 344 of file rte_ether.h. #define RTE_ETHER_TYPE_LLDP 0x88CC LLDP Protocol. Definition at line 345 of file rte_ether.h. #define RTE_ETHER_TYPE_MPLS 0x8847 MPLS ethertype. Definition at line 346 of file rte_ether.h. #define RTE_ETHER_TYPE_MPLSM 0x8848 MPLS multicast ethertype. Definition at line 347 of file rte_ether.h. #define RTE_ETHER_TYPE_ECPRI 0xAEFE eCPRI ethertype (.1Q supported). Definition at line 348 of file rte_ether.h. Function Documentation struct __rte_aligned (2) Ethernet address: A universally administered address is uniquely assigned to a device by its manufacturer. The first three octets (in transmission order) contain the Organizationally Unique Identifier (OUI). The following three (MAC-48 and EUI-48) octets are assigned by that organization with the only constraint of uniqueness. A locally administered address is assigned to a device by a network administrator and does not contain OUIs. See http://standards.ieee.org/regauth/groupmac/tutorial.html < Addr bytes in tx order Definition at line 1 of file rte_ether.h. static int rte_is_same_ether_addr (const struct rte_ether_addr * ea1, const struct rte_ether_addr * ea2) [inline], [static] Check if two Ethernet addresses are the same. Parameters ea1 A pointer to the first ether_addr structure containing the ethernet address. ea2 A pointer to the second ether_addr structure containing the ethernet address. Returns True (1) if the given two ethernet address are the same; False (0) otherwise. Definition at line 102 of file rte_ether.h. static int rte_is_zero_ether_addr (const struct rte_ether_addr * ea) [inline], [static] Check if an Ethernet address is filled with zeros. Parameters ea A pointer to a ether_addr structure containing the ethernet address to check. Returns True (1) if the given ethernet address is filled with zeros; false (0) otherwise. Definition at line 121 of file rte_ether.h. static int rte_is_unicast_ether_addr (const struct rte_ether_addr * ea) [inline], [static] Check if an Ethernet address is a unicast address. Parameters ea A pointer to a ether_addr structure containing the ethernet address to check. Returns True (1) if the given ethernet address is a unicast address; false (0) otherwise. Definition at line 138 of file rte_ether.h. static int rte_is_multicast_ether_addr (const struct rte_ether_addr * ea) [inline], [static] Check if an Ethernet address is a multicast address. Parameters ea A pointer to a ether_addr structure containing the ethernet address to check. Returns True (1) if the given ethernet address is a multicast address; false (0) otherwise. Definition at line 153 of file rte_ether.h. static int rte_is_broadcast_ether_addr (const struct rte_ether_addr * ea) [inline], [static] Check if an Ethernet address is a broadcast address. Parameters ea A pointer to a ether_addr structure containing the ethernet address to check. Returns True (1) if the given ethernet address is a broadcast address; false (0) otherwise. Definition at line 168 of file rte_ether.h. static int rte_is_universal_ether_addr (const struct rte_ether_addr * ea) [inline], [static] Check if an Ethernet address is a universally assigned address. Parameters ea A pointer to a ether_addr structure containing the ethernet address to check. Returns True (1) if the given ethernet address is a universally assigned address; false (0) otherwise. Definition at line 185 of file rte_ether.h. static int rte_is_local_admin_ether_addr (const struct rte_ether_addr * ea) [inline], [static] Check if an Ethernet address is a locally assigned address. Parameters ea A pointer to a ether_addr structure containing the ethernet address to check. Returns True (1) if the given ethernet address is a locally assigned address; false (0) otherwise. Definition at line 200 of file rte_ether.h. static int rte_is_valid_assigned_ether_addr (const struct rte_ether_addr * ea) [inline], [static] Check if an Ethernet address is a valid address. Checks that the address is a unicast address and is not filled with zeros. Parameters ea A pointer to a ether_addr structure containing the ethernet address to check. Returns True (1) if the given ethernet address is valid; false (0) otherwise. Definition at line 216 of file rte_ether.h. void rte_eth_random_addr (uint8_t * addr) Generate a random Ethernet address that is locally administered and not multicast. Parameters addr A pointer to Ethernet address. static void rte_ether_addr_copy (const struct rte_ether_addr *__restrict ea_from, struct rte_ether_addr *__restrict ea_to) [inline], [static] Copy an Ethernet address. Parameters ea_from A pointer to a ether_addr structure holding the Ethernet address to copy. ea_to A pointer to a ether_addr structure where to copy the Ethernet address. Definition at line 239 of file rte_ether.h. void rte_ether_format_addr (char * buf, uint16_t size, const struct rte_ether_addr * eth_addr) Format 48bits Ethernet address in pattern xx:xx:xx:xx:xx:xx. Parameters buf A pointer to buffer contains the formatted MAC address. size The format buffer size. eth_addr A pointer to a ether_addr structure. int rte_ether_unformat_addr (const char * str, struct rte_ether_addr * eth_addr) Convert string with Ethernet address to an ether_addr. Parameters str A pointer to buffer contains the formatted MAC address. Accepts either byte or word format separated by colon, hyphen or period. The example formats are: XX:XX:XX:XX:XX:XX - Canonical form XX-XX-XX- XX-XX-XX - Windows and IEEE 802 XXXX.XXXX.XXXX - Cisco where XX is a hex digit: 0-9, a-f, or A-F. In the byte format, leading zeros are optional. Parameters eth_addr A pointer to a ether_addr structure. Returns 0 if successful -1 and sets rte_errno if invalid string static int rte_vlan_strip (struct rte_mbuf * m) [inline], [static] Extract VLAN tag information into mbuf Software version of VLAN stripping Parameters m The packet mbuf. Returns • 0: Success • 1: not a vlan packet Definition at line 361 of file rte_ether.h. static int rte_vlan_insert (struct rte_mbuf ** m) [inline], [static] Insert VLAN tag into mbuf. Software version of VLAN unstripping Parameters m The packet mbuf. Returns • 0: On success -EPERM: mbuf is shared overwriting would be unsafe -ENOSPC: not enough headroom in mbuf Definition at line 393 of file rte_ether.h. Author Generated automatically by Doxygen for DPDK from the source code. Version 25.11.0 Thu Jun 11 2026 rte_ether.h(3)
NAME | SYNOPSIS | Detailed Description | Macro Definition Documentation | Function Documentation | Author
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