/* $OpenBSD: if_trunk.h,v 1.11 2007/01/31 06:20:19 reyk Exp $ */ /* * Copyright (c) 2005, 2006 Reyk Floeter * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. * * $FreeBSD: head/sys/net/if_lagg.h 168793 2007-04-17 00:35:11Z thompsa $ */ #ifndef _NET_LAGG_H #define _NET_LAGG_H /* * Global definitions */ #define LAGG_MAX_PORTS 32 /* logically */ #define LAGG_MAX_NAMESIZE 32 /* name of a protocol */ #define LAGG_MAX_STACKING 4 /* maximum number of stacked laggs */ /* Port flags */ #define LAGG_PORT_SLAVE 0x00000000 /* normal enslaved port */ #define LAGG_PORT_MASTER 0x00000001 /* primary port */ #define LAGG_PORT_STACK 0x00000002 /* stacked lagg port */ #define LAGG_PORT_ACTIVE 0x00000004 /* port is active */ #define LAGG_PORT_COLLECTING 0x00000008 /* port is active */ #define LAGG_PORT_DISTRIBUTING 0x00000010 /* port is active */ #define LAGG_PORT_GLOBAL 0x80000000 /* IOCTL: global flag */ #define LAGG_PORT_BITS "\20\01MASTER\02STACK\03ACTIVE\04COLLECTING" \ "\05DISTRIBUTING" /* Supported lagg PROTOs */ #define LAGG_PROTO_NONE 0 /* no lagg protocol defined */ #define LAGG_PROTO_ROUNDROBIN 1 /* simple round robin */ #define LAGG_PROTO_FAILOVER 2 /* active failover */ #define LAGG_PROTO_LOADBALANCE 3 /* loadbalance */ #define LAGG_PROTO_LACP 4 /* 802.3ad lacp */ #define LAGG_PROTO_ETHERCHANNEL 5 /* Cisco FEC */ #define LAGG_PROTO_MAX 6 struct lagg_protos { const char *tpr_name; int tpr_proto; }; #define LAGG_PROTO_DEFAULT LAGG_PROTO_FAILOVER #define LAGG_PROTOS { \ { "failover", LAGG_PROTO_FAILOVER }, \ { "fec", LAGG_PROTO_ETHERCHANNEL }, \ { "lacp", LAGG_PROTO_LACP }, \ { "loadbalance", LAGG_PROTO_LOADBALANCE }, \ { "roundrobin", LAGG_PROTO_ROUNDROBIN }, \ { "none", LAGG_PROTO_NONE }, \ { "default", LAGG_PROTO_DEFAULT } \ } /* * lagg ioctls. */ /* lagg port settings */ struct lagg_reqport { char rp_ifname[IFNAMSIZ]; /* name of the lagg */ char rp_portname[IFNAMSIZ]; /* name of the port */ u_int32_t rp_prio; /* port priority */ u_int32_t rp_flags; /* port flags */ }; #define SIOCGLAGGPORT _IOWR('i', 140, struct lagg_reqport) #define SIOCSLAGGPORT _IOW('i', 141, struct lagg_reqport) #define SIOCSLAGGDELPORT _IOW('i', 142, struct lagg_reqport) /* lagg, ports and options */ struct lagg_reqall { char ra_ifname[IFNAMSIZ]; /* name of the lagg */ u_int ra_proto; /* lagg protocol */ size_t ra_size; /* size of buffer */ struct lagg_reqport *ra_port; /* allocated buffer */ int ra_ports; /* total port count */ }; #define SIOCGLAGG _IOWR('i', 143, struct lagg_reqall) #define SIOCSLAGG _IOW('i', 144, struct lagg_reqall) #ifdef _KERNEL /* * Internal kernel part */ #define lp_ifname lp_ifp->if_xname /* interface name */ #define lp_link_state lp_ifp->if_link_state /* link state */ #define lp_capabilities lp_ifp->if_capabilities /* capabilities */ #define LAGG_PORTACTIVE(_tp) ( \ ((_tp)->lp_link_state == LINK_STATE_UP) && \ ((_tp)->lp_ifp->if_flags & IFF_UP) \ ) #define mc_enm mc_u.mcu_enm struct lagg_ifreq { union { struct ifreq ifreq; struct { char ifr_name[IFNAMSIZ]; struct sockaddr_storage ifr_ss; } ifreq_storage; } ifreq; }; #define sc_ifflags sc_ifp->if_flags /* flags */ #define sc_ifname sc_ifp->if_xname /* name */ #define sc_capabilities sc_ifp->if_capabilities /* capabilities */ #define IFCAP_LAGG_MASK 0xffff0000 /* private capabilities */ #define IFCAP_LAGG_FULLDUPLEX 0x00010000 /* full duplex with >1 ports */ /* Private data used by the loadbalancing protocol */ #define LAGG_LB_MAXKEYS 8 struct lagg_lb { u_int32_t lb_key; struct lagg_port *lb_ports[LAGG_MAX_PORTS]; }; struct lagg_mc { union { struct ether_multi *mcu_enm; } mc_u; struct sockaddr_storage mc_addr; SLIST_ENTRY(lagg_mc) mc_entries; }; struct lagg_softc { struct ifnet *sc_ifp; /* virtual interface */ struct mtx sc_mtx; int sc_proto; /* lagg protocol */ u_int sc_count; /* number of ports */ struct lagg_port *sc_primary; /* primary port */ struct ifmedia sc_media; /* media config */ caddr_t sc_psc; /* protocol data */ SLIST_HEAD(__tplhd, lagg_port) sc_ports; /* list of interfaces */ SLIST_ENTRY(lagg_softc) sc_entries; SLIST_HEAD(__mclhd, lagg_mc) sc_mc_head; /* multicast addresses */ /* lagg protocol callbacks */ int (*sc_detach)(struct lagg_softc *); int (*sc_start)(struct lagg_softc *, struct mbuf *); struct mbuf *(*sc_input)(struct lagg_softc *, struct lagg_port *, struct mbuf *); int (*sc_port_create)(struct lagg_port *); void (*sc_port_destroy)(struct lagg_port *); void (*sc_linkstate)(struct lagg_port *); void (*sc_init)(struct lagg_softc *); void (*sc_stop)(struct lagg_softc *); void (*sc_lladdr)(struct lagg_softc *); }; struct lagg_port { struct ifnet *lp_ifp; /* physical interface */ struct lagg_softc *lp_lagg; /* parent lagg */ uint8_t lp_lladdr[ETHER_ADDR_LEN]; u_char lp_iftype; /* interface type */ uint32_t lp_prio; /* port priority */ uint32_t lp_flags; /* port flags */ int lp_ifflags; /* saved ifp flags */ void *lh_cookie; /* if state hook */ caddr_t lp_psc; /* protocol data */ /* Redirected callbacks */ int (*lp_ioctl)(struct ifnet *, u_long, caddr_t); int (*lp_output)(struct ifnet *, struct mbuf *, struct sockaddr *, struct rtentry *); SLIST_ENTRY(lagg_port) lp_entries; }; #define LAGG_LOCK_INIT(_tr) mtx_init(&(_tr)->sc_mtx, "if_lagg", NULL, \ MTX_DEF) #define LAGG_LOCK_DESTROY(_tr) mtx_destroy(&(_tr)->sc_mtx) #define LAGG_LOCK(_tr) mtx_lock(&(_tr)->sc_mtx) #define LAGG_UNLOCK(_tr) mtx_unlock(&(_tr)->sc_mtx) #define LAGG_LOCKED(_tr) mtx_owned(&(_tr)->sc_mtx) #define LAGG_LOCK_ASSERT(_tr) mtx_assert(&(_tr)->sc_mtx, MA_OWNED) extern struct mbuf *(*lagg_input_p)(struct ifnet *, struct mbuf *); extern void (*lagg_linkstate_p)(struct ifnet *, int ); int lagg_enqueue(struct ifnet *, struct mbuf *); uint32_t lagg_hashmbuf(struct mbuf *, uint32_t); #endif /* _KERNEL */ #endif /* _NET_LAGG_H */