/* $NetBSD: if_lagg_lacp.h,v 1.4.4.1 2024/10/03 11:53:46 martin Exp $ */ /* * Copyright (c) 2021 Internet Initiative Japan Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #ifndef _NET_LAGG_IF_LAGG_LACP_H_ #define _NET_LAGG_IF_LAGG_LACP_H_ /* timeout values (in sec) */ #define LACP_FAST_PERIODIC_TIME 1 #define LACP_SLOW_PERIODIC_TIME 30 #define LACP_SHORT_TIMEOUT_TIME (3 * LACP_FAST_PERIODIC_TIME) #define LACP_LONG_TIMEOUT_TIME (3 * LACP_SLOW_PERIODIC_TIME) #define LACP_CHURN_DETECTION_TIME 60 #define LACP_AGGREGATE_WAIT_TIME 2 #define LACP_TRANSIT_DELAY 3 #define LACP_MAX_PORTS 16 #define LACP_SYSTEM_PRIO 0x8000U #define LACP_PORT_PRIO LAGG_PORT_PRIO #define LACP_SENDDU_PPS 3 #define LACP_RCVDU_LIMIT (LACP_SENDDU_PPS * LACP_MAX_PORTS) #define LACP_PARTNER_ADMIN_OPTIMISTIC (LACP_STATE_SYNC | \ LACP_STATE_AGGREGATION | \ LACP_STATE_COLLECTING | \ LACP_STATE_DISTRIBUTING) #define LACP_PARTNER_ADMIN_STRICT 0 #define TLV_TYPE_TERMINATE 0 #define LACP_TYPE_TERMINATE TLV_TYPE_TERMINATE #define LACP_TYPE_ACTORINFO 1 #define LACP_TYPE_PARTNERINFO 2 #define LACP_TYPE_COLLECTORINFO 3 #define MARKER_TYPE_TERMINATE TLV_TYPE_TERMINATE #define MARKER_TYPE_INFO 1 #define MARKER_TYPE_RESPONSE 2 struct tlvhdr { uint8_t tlv_type; uint8_t tlv_length; } __packed; struct tlv { uint8_t tlv_t; uint8_t tlv_l; void *tlv_v; }; static inline void tlv_set(struct tlvhdr *th, uint8_t t, uint8_t l) { th->tlv_type = t; th->tlv_length = sizeof(*th) + l; } struct lacpdu_peerinfo { uint16_t lpi_system_prio; uint8_t lpi_system_mac[LACP_MAC_LEN]; uint16_t lpi_key; uint16_t lpi_port_prio; uint16_t lpi_port_no; uint8_t lpi_state; uint8_t lpi_resv[3]; } __packed; struct lacpdu_collectorinfo { uint16_t lci_maxdelay; uint8_t lci_resv[12]; } __packed; struct lacpdu { struct ether_header ldu_eh; struct slowprothdr ldu_sph; struct tlvhdr ldu_tlv_actor; struct lacpdu_peerinfo ldu_actor; struct tlvhdr ldu_tlv_partner; struct lacpdu_peerinfo ldu_partner; struct tlvhdr ldu_tlv_collector; struct lacpdu_collectorinfo ldu_collector; struct tlvhdr ldu_tlv_term; uint8_t ldu_resv[50]; } __packed; struct markerdu_info { uint16_t mi_rq_port; uint8_t mi_rq_system[LACP_MAC_LEN]; uint32_t mi_rq_xid; uint8_t mi_pad[2]; } __packed; struct markerdu { struct ether_header mdu_eh; struct slowprothdr mdu_sph; struct tlvhdr mdu_tlv_info; struct markerdu_info mdu_info; struct tlvhdr mdu_tlv_term; uint8_t mdu_resv[90]; } __packed; #endif