164 lines
4.5 KiB
C
164 lines
4.5 KiB
C
/* $NetBSD: if_lagg_lacp.h,v 1.4 2022/03/31 02:04:50 yamaguchi Exp $ */
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/*
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* Copyright (c) 2021 Internet Initiative Japan Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _NET_LAGG_IF_LAGG_LACP_H_
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#define _NET_LAGG_IF_LAGG_LACP_H_
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/* timeout values (in sec) */
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#define LACP_FAST_PERIODIC_TIME 1
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#define LACP_SLOW_PERIODIC_TIME 30
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#define LACP_SHORT_TIMEOUT_TIME (3 * LACP_FAST_PERIODIC_TIME)
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#define LACP_LONG_TIMEOUT_TIME (3 * LACP_SLOW_PERIODIC_TIME)
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#define LACP_CHURN_DETECTION_TIME 60
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#define LACP_AGGREGATE_WAIT_TIME 2
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#define LACP_TRANSIT_DELAY 3
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#define LACP_MAX_PORTS 16
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#define LACP_SYSTEM_PRIO 0x8000U
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#define LACP_PORT_PRIO LAGG_PORT_PRIO
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#define LACP_SENDDU_PPS 3
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#define LACP_RCVDU_LIMIT (LACP_SENDDU_PPS * LACP_MAX_PORTS)
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#define LACP_PARTNER_ADMIN_OPTIMISTIC (LACP_STATE_SYNC | \
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LACP_STATE_AGGREGATION | \
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LACP_STATE_COLLECTING | \
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LACP_STATE_DISTRIBUTING)
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#define LACP_PARTNER_ADMIN_STRICT 0
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#define TLV_TYPE_TERMINATE 0
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#define LACP_TYPE_TERMINATE TLV_TYPE_TERMINATE
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#define LACP_TYPE_ACTORINFO 1
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#define LACP_TYPE_PARTNERINFO 2
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#define LACP_TYPE_COLLECTORINFO 3
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#define MARKER_TYPE_TERMINATE TLV_TYPE_TERMINATE
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#define MARKER_TYPE_INFO 1
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#define MARKER_TYPE_RESPONSE 2
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struct tlvhdr {
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uint8_t tlv_type;
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uint8_t tlv_length;
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} __packed;
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struct tlv {
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uint8_t tlv_t;
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uint8_t tlv_l;
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void *tlv_v;
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};
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static inline void
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tlv_set(struct tlvhdr *th, uint8_t t, uint8_t l)
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{
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th->tlv_type = t;
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th->tlv_length = sizeof(*th) + l;
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}
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struct lacpdu_peerinfo {
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uint16_t lpi_system_prio;
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uint8_t lpi_system_mac[LACP_MAC_LEN];
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uint16_t lpi_key;
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uint16_t lpi_port_prio;
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uint16_t lpi_port_no;
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uint8_t lpi_state;
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uint8_t lpi_resv[3];
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} __packed;
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struct lacpdu_collectorinfo {
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uint16_t lci_maxdelay;
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uint8_t lci_resv[12];
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} __packed;
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struct lacpdu {
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struct ether_header ldu_eh;
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struct slowprothdr ldu_sph;
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struct tlvhdr ldu_tlv_actor;
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struct lacpdu_peerinfo ldu_actor;
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struct tlvhdr ldu_tlv_partner;
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struct lacpdu_peerinfo ldu_partner;
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struct tlvhdr ldu_tlv_collector;
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struct lacpdu_collectorinfo
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ldu_collector;
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struct tlvhdr ldu_tlv_term;
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uint8_t ldu_resv[50];
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} __packed;
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struct markerdu_info {
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uint16_t mi_rq_port;
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uint8_t mi_rq_system[LACP_MAC_LEN];
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uint32_t mi_rq_xid;
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uint8_t mi_pad[2];
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} __packed;
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struct markerdu {
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struct ether_header mdu_eh;
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struct slowprothdr mdu_sph;
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struct tlvhdr mdu_tlv_info;
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struct markerdu_info mdu_info;
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struct tlvhdr mdu_tlv_term;
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uint8_t mdu_resv[90];
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} __packed;
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/*
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* lacp media:
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* 1byte
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* +-------+-------+-------+-------+
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* | media | speed |
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* +-------+-------+-------+-------+
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*/
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enum lacp_linkspeed {
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LACP_LINKSPEED_UNKNOWN = 0,
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LACP_LINKSPEED_10,
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LACP_LINKSPEED_100,
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LACP_LINKSPEED_1000,
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LACP_LINKSPEED_2500,
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LACP_LINKSPEED_5000,
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LACP_LINKSPEED_10G,
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LACP_LINKSPEED_25G,
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LACP_LINKSPEED_40G,
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LACP_LINKSPEED_50G,
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LACP_LINKSPEED_56G,
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LACP_LINKSPEED_100G,
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LACP_LINKSPEED_200G,
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};
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#define LACP_MEDIA_OFFSET 24
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#define LACP_MEDIA_MASK 0xff000000U
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#define LACP_MEDIA_ETHER (__BIT(0) << LACP_MEDIA_OFFSET)
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#define LACP_MEDIA_FDX (__BIT(1) << LACP_MEDIA_OFFSET)
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#define LACP_MEDIA_DEFAULT (LACP_LINKSPEED_UNKNOWN | \
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LACP_MEDIA_ETHER | LACP_MEDIA_FDX)
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#endif
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