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#ifndef _IPXE_ETH_SLOW_H
#define _IPXE_ETH_SLOW_H
/** @file
*
* Ethernet slow protocols
*
*/
FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
/** Slow protocols header */
struct eth_slow_header {
/** Slow protocols subtype */
uint8_t subtype;
/** Subtype version number */
uint8_t version;
} __attribute__ (( packed ));
/** LACP subtype */
#define ETH_SLOW_SUBTYPE_LACP 1
/** LACP version number */
#define ETH_SLOW_LACP_VERSION 1
/** Marker subtype */
#define ETH_SLOW_SUBTYPE_MARKER 2
/** Marker version number */
#define ETH_SLOW_MARKER_VERSION 1
/** TLV (type, length, value) header */
struct eth_slow_tlv_header {
/** Type
*
* This is an ETH_SLOW_TLV_XXX constant.
*/
uint8_t type;
/** Length
*
* The length includes the TLV header (except for a TLV
* terminator, which has a length of zero).
*/
uint8_t length;
} __attribute__ (( packed ));
/** Terminator type */
#define ETH_SLOW_TLV_TERMINATOR 0
/** Terminator length */
#define ETH_SLOW_TLV_TERMINATOR_LEN 0
/** LACP actor type */
#define ETH_SLOW_TLV_LACP_ACTOR 1
/** LACP actor length */
#define ETH_SLOW_TLV_LACP_ACTOR_LEN \
( sizeof ( struct eth_slow_lacp_entity_tlv ) )
/** LACP partner type */
#define ETH_SLOW_TLV_LACP_PARTNER 2
/** LACP partner length */
#define ETH_SLOW_TLV_LACP_PARTNER_LEN \
( sizeof ( struct eth_slow_lacp_entity_tlv ) )
/** LACP collector type */
#define ETH_SLOW_TLV_LACP_COLLECTOR 3
/** LACP collector length */
#define ETH_SLOW_TLV_LACP_COLLECTOR_LEN \
( sizeof ( struct eth_slow_lacp_collector_tlv ) )
/** Marker request type */
#define ETH_SLOW_TLV_MARKER_REQUEST 1
/** Marker request length */
#define ETH_SLOW_TLV_MARKER_REQUEST_LEN \
( sizeof ( struct eth_slow_marker_tlv ) )
/** Marker response type */
#define ETH_SLOW_TLV_MARKER_RESPONSE 2
/** Marker response length */
#define ETH_SLOW_TLV_MARKER_RESPONSE_LEN \
( sizeof ( struct eth_slow_marker_tlv ) )
/** Terminator TLV */
struct eth_slow_terminator_tlv {
/** TLV header */
struct eth_slow_tlv_header tlv;
} __attribute__ (( packed ));
/** LACP entity (actor or partner) TLV */
struct eth_slow_lacp_entity_tlv {
/** TLV header */
struct eth_slow_tlv_header tlv;
/** System priority
*
* Used to determine the order in which ports are selected for
* aggregation.
*/
uint16_t system_priority;
/** System identifier
*
* Used to uniquely identify the system (i.e. the entity with
* potentially multiple ports).
*/
uint8_t system[ETH_ALEN];
/** Key
*
* Used to uniquely identify a group of aggregatable ports
* within a system.
*/
uint16_t key;
/** Port priority
*
* Used to determine the order in which ports are selected for
* aggregation.
*/
uint16_t port_priority;
/** Port identifier
*
* Used to uniquely identify a port within a system.
*/
uint16_t port;
/** State
*
* This is the bitwise OR of zero or more LACP_STATE_XXX
* constants.
*/
uint8_t state;
/** Reserved */
uint8_t reserved[3];
} __attribute__ (( packed ));
/** Maximum system priority */
#define LACP_SYSTEM_PRIORITY_MAX 0xffff
/** Maximum port priority */
#define LACP_PORT_PRIORITY_MAX 0xff
/** LACP entity is active
*
* Represented by the state character "A"/"a"
*/
#define LACP_STATE_ACTIVE 0x01
/** LACP timeout is short
*
* Short timeout is one second, long timeout is 30s
*
* Represented by the state character "F"/"f"
*/
#define LACP_STATE_FAST 0x02
/** LACP link is aggregateable
*
* Represented by the state characters "G"/"g"
*/
#define LACP_STATE_AGGREGATABLE 0x04
/** LACP link is in synchronisation
*
* Represented by the state characters "S"/"s"
*/
#define LACP_STATE_IN_SYNC 0x08
/** LACP link is collecting (receiving)
*
* Represented by the state characters "C"/"c"
*/
#define LACP_STATE_COLLECTING 0x10
/** LACP link is distributing (transmitting)
*
* Represented by the state characters "D"/"d"
*/
#define LACP_STATE_DISTRIBUTING 0x20
/** LACP entity is using defaulted partner information
*
* Represented by the state characters "L"/"l"
*/
#define LACP_STATE_DEFAULTED 0x40
/** LACP entity receive state machine is in EXPIRED
*
* Represented by the state characters "X"/"x"
*/
#define LACP_STATE_EXPIRED 0x80
/** LACP fast interval (1 second) */
#define LACP_INTERVAL_FAST 1
/** LACP slow interval (30 seconds) */
#define LACP_INTERVAL_SLOW 30
/** LACP collector TLV */
struct eth_slow_lacp_collector_tlv {
/** TLV header */
struct eth_slow_tlv_header tlv;
/** Maximum delay (in 10us increments) */
uint16_t max_delay;
/** Reserved */
uint8_t reserved[12];
} __attribute__ (( packed ));
/** Marker TLV */
struct eth_slow_marker_tlv {
/** TLV header */
struct eth_slow_tlv_header tlv;
/** Requester port */
uint16_t port;
/** Requester system */
uint8_t system[ETH_ALEN];
/** Requester transaction ID */
uint32_t xact;
/** Padding */
uint16_t pad;
} __attribute__ (( packed ));
/** LACP packet */
struct eth_slow_lacp {
/** Slow protocols header */
struct eth_slow_header header;
/** Actor information */
struct eth_slow_lacp_entity_tlv actor;
/** Partner information */
struct eth_slow_lacp_entity_tlv partner;
/** Collector information */
struct eth_slow_lacp_collector_tlv collector;
/** Terminator */
struct eth_slow_terminator_tlv terminator;
/** Reserved */
uint8_t reserved[50];
} __attribute__ (( packed ));
/** Marker packet */
struct eth_slow_marker {
/** Slow protocols header */
struct eth_slow_header header;
/** Marker information */
struct eth_slow_marker_tlv marker;
/** Terminator */
struct eth_slow_terminator_tlv terminator;
/** Reserved */
uint8_t reserved[90];
} __attribute__ (( packed ));
/** Slow protocols packet */
union eth_slow_packet {
/** Slow protocols header */
struct eth_slow_header header;
/** LACP packet */
struct eth_slow_lacp lacp;
/** Marker packet */
struct eth_slow_marker marker;
} __attribute__ (( packed ));
#endif /* _IPXE_ETH_SLOW_H */
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