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src/sys/net/trunklacp.h

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/* $OpenBSD: trunklacp.h,v 1.14 2018/08/12 23:50:31 ccardenas Exp $ */
/* $NetBSD: ieee8023ad_impl.h,v 1.2 2005/12/10 23:21:39 elad Exp $ */
/*
* Copyright (c)2005 YAMAMOTO Takashi,
* 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 AUTHOR 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 AUTHOR 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.
*
* $FreeBSD: src/sys/net/ieee8023ad_lacp.h,v 1.11 2008/03/17 01:26:44 thompsa Exp $
*/
#ifndef _NET_TRUNKLACP_H_
#define _NET_TRUNKLACP_H_
/*
* IEEE802.3 slow protocols (on-wire) definitions.
* XXX should be elsewhere.
*/
#define SLOWPROTOCOLS_SUBTYPE_LACP 1
#define SLOWPROTOCOLS_SUBTYPE_MARKER 2
/*
* default administrative values
*/
#define LACP_DEFAULT_MODE 1 /* Active Mode */
#define LACP_DEFAULT_TIMEOUT 0 /* Slow Timeout */
#define LACP_DEFAULT_SYSTEM_PRIO 0x8000 /* Medium Priority */
#define LACP_LOW_SYSTEM_PRIO 0xffff
#define LACP_HIGH_SYSTEM_PRIO 0x0001
#define LACP_DEFAULT_PORT_PRIO 0x8000 /* Medium Priority */
#define LACP_LOW_PORT_PRIO 0xffff
#define LACP_HIGH_PORT_PRIO 0x0001
#define LACP_DEFAULT_IFQ_PRIO 6
struct slowprothdr {
u_int8_t sph_subtype;
u_int8_t sph_version;
} __packed;
/* TLV on-wire structure. */
struct tlvhdr {
u_int8_t tlv_type;
u_int8_t tlv_length;
/* u_int8_t tlv_value[]; */
} __packed;
/* ... and our implementation. */
#define TLV_SET(tlv, type, length) \
do { \
(tlv)->tlv_type = (type); \
(tlv)->tlv_length = sizeof(*tlv) + (length); \
} while (/*CONSTCOND*/0)
struct tlv_template {
u_int8_t tmpl_type;
u_int8_t tmpl_length;
};
struct lacp_systemid {
u_int16_t lsi_prio;
u_int8_t lsi_mac[6];
} __packed;
struct lacp_portid {
u_int16_t lpi_prio;
u_int16_t lpi_portno;
} __packed;
struct lacp_peerinfo {
struct lacp_systemid lip_systemid;
u_int16_t lip_key;
struct lacp_portid lip_portid;
u_int8_t lip_state;
u_int8_t lip_resv[3];
} __packed;
struct lacp_collectorinfo {
u_int16_t lci_maxdelay;
u_int8_t lci_resv[12];
} __packed;
struct lacpdu {
struct ether_header ldu_eh;
struct slowprothdr ldu_sph;
struct tlvhdr ldu_tlv_actor;
struct lacp_peerinfo ldu_actor;
struct tlvhdr ldu_tlv_partner;
struct lacp_peerinfo ldu_partner;
struct tlvhdr ldu_tlv_collector;
struct lacp_collectorinfo ldu_collector;
struct tlvhdr ldu_tlv_term;
u_int8_t ldu_resv[50];
} __packed;
/*
* IEEE802.3ad marker protocol (on-wire) definitions.
*/
struct lacp_markerinfo {
u_int16_t mi_rq_port;
u_int8_t mi_rq_system[ETHER_ADDR_LEN];
u_int32_t mi_rq_xid;
u_int8_t mi_pad[2];
} __packed;
#define LACP_STATE_BITS \
"\020" \
"\001ACTIVITY" \
"\002TIMEOUT" \
"\003AGGREGATION" \
"\004SYNC" \
"\005COLLECTING" \
"\006DISTRIBUTING" \
"\007DEFAULTED" \
"\010EXPIRED"
#ifdef _KERNEL
/*
* IEEE802.3ad LACP implementation details.
*/
#define LACP_TIMER_CURRENT_WHILE 0
#define LACP_TIMER_PERIODIC 1
#define LACP_TIMER_WAIT_WHILE 2
#define LACP_NTIMER 3
#define LACP_TIMER_ARM(port, timer, val) \
(port)->lp_timer[(timer)] = (val)
#define LACP_TIMER_DISARM(port, timer) \
(port)->lp_timer[(timer)] = 0
#define LACP_TIMER_ISARMED(port, timer) \
((port)->lp_timer[(timer)] > 0)
/*
* IEEE802.3ad LACP protocol definitions.
*/
#define LACP_STATE_ACTIVITY (1<<0)
#define LACP_STATE_TIMEOUT (1<<1)
#define LACP_STATE_AGGREGATION (1<<2)
#define LACP_STATE_SYNC (1<<3)
#define LACP_STATE_COLLECTING (1<<4)
#define LACP_STATE_DISTRIBUTING (1<<5)
#define LACP_STATE_DEFAULTED (1<<6)
#define LACP_STATE_EXPIRED (1<<7)
#define LACP_PORT_NTT 0x00000001
#define LACP_PORT_MARK 0x00000002
struct markerdu {
struct ether_header mdu_eh;
struct slowprothdr mdu_sph;
struct tlvhdr mdu_tlv;
struct lacp_markerinfo mdu_info;
struct tlvhdr mdu_tlv_term;
u_int8_t mdu_resv[90];
} __packed;
#define MARKER_TYPE_INFO 0x01
#define MARKER_TYPE_RESPONSE 0x02
enum lacp_selected {
LACP_UNSELECTED,
LACP_STANDBY, /* not used in this implementation */
LACP_SELECTED,
};
enum lacp_mux_state {
LACP_MUX_DETACHED,
LACP_MUX_WAITING,
LACP_MUX_ATTACHED,
LACP_MUX_COLLECTING,
LACP_MUX_DISTRIBUTING,
};
#define LACP_MAX_PORTS 32
struct lacp_portmap {
int pm_count;
struct lacp_port *pm_map[LACP_MAX_PORTS];
};
struct lacp_port {
TAILQ_ENTRY(lacp_port) lp_dist_q;
LIST_ENTRY(lacp_port) lp_next;
struct lacp_softc *lp_lsc;
struct trunk_port *lp_trunk;
struct ifnet *lp_ifp;
struct lacp_peerinfo lp_partner;
struct lacp_peerinfo lp_actor;
struct lacp_markerinfo lp_marker;
#define lp_state lp_actor.lip_state
#define lp_key lp_actor.lip_key
#define lp_systemid lp_actor.lip_systemid
struct timeval lp_last_lacpdu;
int lp_lacpdu_sent;
enum lacp_mux_state lp_mux_state;
enum lacp_selected lp_selected;
int lp_flags;
u_int lp_media; /* XXX redundant */
int lp_timer[LACP_NTIMER];
struct mbuf_queue lp_mq;
struct lacp_aggregator *lp_aggregator;
};
struct lacp_aggregator {
TAILQ_ENTRY(lacp_aggregator) la_q;
int la_refcnt; /* num of ports which selected us */
int la_nports; /* num of distributing ports */
TAILQ_HEAD(, lacp_port) la_ports; /* distributing ports */
struct lacp_peerinfo la_partner;
struct lacp_peerinfo la_actor;
int la_pending; /* number of ports in wait_while */
};
struct lacp_admin_def {
u_int8_t lad_mode; /* active or passive */
u_int8_t lad_timeout; /* fast or slow */
u_int16_t lad_prio; /* system priority */
u_int16_t lad_portprio; /* port priority */
u_int8_t lad_ifqprio; /* ifq priority */
};
struct lacp_softc {
struct trunk_softc *lsc_softc;
struct lacp_aggregator *lsc_active_aggregator;
TAILQ_HEAD(, lacp_aggregator) lsc_aggregators;
int lsc_suppress_distributing;
struct timeout lsc_transit_callout;
struct timeout lsc_callout;
LIST_HEAD(, lacp_port) lsc_ports;
struct lacp_portmap lsc_pmap[2];
volatile u_int lsc_activemap;
SIPHASH_KEY lsc_hashkey;
struct task lsc_input;
struct lacp_admin_def lsc_admin_defaults;
#define lsc_mode lsc_admin_defaults.lad_mode
#define lsc_timeout lsc_admin_defaults.lad_timeout
#define lsc_sys_prio lsc_admin_defaults.lad_prio
#define lsc_port_prio lsc_admin_defaults.lad_portprio
#define lsc_ifq_prio lsc_admin_defaults.lad_ifqprio
};
#define LACP_TYPE_ACTORINFO 1
#define LACP_TYPE_PARTNERINFO 2
#define LACP_TYPE_COLLECTORINFO 3
/* 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 3000 /* in msec */
#define LACP_STATE_EQ(s1, s2, mask) \
((((s1) ^ (s2)) & (mask)) == 0)
#define LACP_SYS_PRI(peer) (peer).lip_systemid.lsi_prio
#define LACP_PORT(_lp) ((struct lacp_port *)(_lp)->tp_psc)
#define LACP_SOFTC(_sc) ((struct lacp_softc *)(_sc)->tr_psc)
int lacp_input(struct trunk_port *, struct mbuf *);
struct trunk_port *lacp_select_tx_port(struct trunk_softc *, struct mbuf *);
int lacp_attach(struct trunk_softc *);
int lacp_detach(struct trunk_softc *);
void lacp_init(struct trunk_softc *);
void lacp_stop(struct trunk_softc *);
int lacp_port_create(struct trunk_port *);
void lacp_port_destroy(struct trunk_port *);
void lacp_linkstate(struct trunk_port *);
void lacp_req(struct trunk_softc *, caddr_t);
void lacp_portreq(struct trunk_port *, caddr_t);
u_int lacp_port_status(struct trunk_port *);
/* following constants don't include terminating NUL */
#define LACP_MACSTR_MAX (2*6 + 5)
#define LACP_SYSTEMPRIOSTR_MAX (4)
#define LACP_SYSTEMIDSTR_MAX (LACP_SYSTEMPRIOSTR_MAX + 1 + LACP_MACSTR_MAX)
#define LACP_PORTPRIOSTR_MAX (4)
#define LACP_PORTNOSTR_MAX (4)
#define LACP_PORTIDSTR_MAX (LACP_PORTPRIOSTR_MAX + 1 + LACP_PORTNOSTR_MAX)
#define LACP_KEYSTR_MAX (4)
#define LACP_PARTNERSTR_MAX \
(1 + LACP_SYSTEMIDSTR_MAX + 1 + LACP_KEYSTR_MAX + 1 \
+ LACP_PORTIDSTR_MAX + 1)
#define LACP_LAGIDSTR_MAX \
(1 + LACP_PARTNERSTR_MAX + 1 + LACP_PARTNERSTR_MAX + 1)
#define LACP_STATESTR_MAX (255) /* XXX */
#endif /* _KERNEL */
#endif /* _NET_TRUNKLACP_H_ */
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