if_lagg.h revision 169569
1/* $OpenBSD: if_trunk.h,v 1.11 2007/01/31 06:20:19 reyk Exp $ */ 2 3/* 4 * Copyright (c) 2005, 2006 Reyk Floeter <reyk@openbsd.org> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 * 18 * $FreeBSD: head/sys/net/if_lagg.h 169569 2007-05-15 07:41:46Z thompsa $ 19 */ 20 21#ifndef _NET_LAGG_H 22#define _NET_LAGG_H 23 24/* 25 * Global definitions 26 */ 27 28#define LAGG_MAX_PORTS 32 /* logically */ 29#define LAGG_MAX_NAMESIZE 32 /* name of a protocol */ 30#define LAGG_MAX_STACKING 4 /* maximum number of stacked laggs */ 31 32/* Port flags */ 33#define LAGG_PORT_SLAVE 0x00000000 /* normal enslaved port */ 34#define LAGG_PORT_MASTER 0x00000001 /* primary port */ 35#define LAGG_PORT_STACK 0x00000002 /* stacked lagg port */ 36#define LAGG_PORT_ACTIVE 0x00000004 /* port is active */ 37#define LAGG_PORT_COLLECTING 0x00000008 /* port is receiving frames */ 38#define LAGG_PORT_DISTRIBUTING 0x00000010 /* port is sending frames */ 39#define LAGG_PORT_DISABLED 0x00000020 /* port is disabled */ 40#define LAGG_PORT_GLOBAL 0x80000000 /* IOCTL: global flag */ 41#define LAGG_PORT_BITS "\20\01MASTER\02STACK\03ACTIVE\04COLLECTING" \ 42 "\05DISTRIBUTING\06DISABLED" 43 44/* Supported lagg PROTOs */ 45#define LAGG_PROTO_NONE 0 /* no lagg protocol defined */ 46#define LAGG_PROTO_ROUNDROBIN 1 /* simple round robin */ 47#define LAGG_PROTO_FAILOVER 2 /* active failover */ 48#define LAGG_PROTO_LOADBALANCE 3 /* loadbalance */ 49#define LAGG_PROTO_LACP 4 /* 802.3ad lacp */ 50#define LAGG_PROTO_ETHERCHANNEL 5 /* Cisco FEC */ 51#define LAGG_PROTO_MAX 6 52 53struct lagg_protos { 54 const char *tpr_name; 55 int tpr_proto; 56}; 57 58#define LAGG_PROTO_DEFAULT LAGG_PROTO_FAILOVER 59#define LAGG_PROTOS { \ 60 { "failover", LAGG_PROTO_FAILOVER }, \ 61 { "fec", LAGG_PROTO_ETHERCHANNEL }, \ 62 { "lacp", LAGG_PROTO_LACP }, \ 63 { "loadbalance", LAGG_PROTO_LOADBALANCE }, \ 64 { "roundrobin", LAGG_PROTO_ROUNDROBIN }, \ 65 { "none", LAGG_PROTO_NONE }, \ 66 { "default", LAGG_PROTO_DEFAULT } \ 67} 68 69/* 70 * lagg ioctls. 71 */ 72 73/* lagg port settings */ 74struct lagg_reqport { 75 char rp_ifname[IFNAMSIZ]; /* name of the lagg */ 76 char rp_portname[IFNAMSIZ]; /* name of the port */ 77 u_int32_t rp_prio; /* port priority */ 78 u_int32_t rp_flags; /* port flags */ 79}; 80 81#define SIOCGLAGGPORT _IOWR('i', 140, struct lagg_reqport) 82#define SIOCSLAGGPORT _IOW('i', 141, struct lagg_reqport) 83#define SIOCSLAGGDELPORT _IOW('i', 142, struct lagg_reqport) 84 85/* lagg, ports and options */ 86struct lagg_reqall { 87 char ra_ifname[IFNAMSIZ]; /* name of the lagg */ 88 u_int ra_proto; /* lagg protocol */ 89 90 size_t ra_size; /* size of buffer */ 91 struct lagg_reqport *ra_port; /* allocated buffer */ 92 int ra_ports; /* total port count */ 93}; 94 95#define SIOCGLAGG _IOWR('i', 143, struct lagg_reqall) 96#define SIOCSLAGG _IOW('i', 144, struct lagg_reqall) 97 98#ifdef _KERNEL 99/* 100 * Internal kernel part 101 */ 102 103#define lp_ifname lp_ifp->if_xname /* interface name */ 104#define lp_link_state lp_ifp->if_link_state /* link state */ 105#define lp_capabilities lp_ifp->if_capabilities /* capabilities */ 106 107#define LAGG_PORTACTIVE(_tp) ( \ 108 ((_tp)->lp_link_state == LINK_STATE_UP) && \ 109 ((_tp)->lp_ifp->if_flags & IFF_UP) \ 110) 111 112#define mc_enm mc_u.mcu_enm 113 114struct lagg_ifreq { 115 union { 116 struct ifreq ifreq; 117 struct { 118 char ifr_name[IFNAMSIZ]; 119 struct sockaddr_storage ifr_ss; 120 } ifreq_storage; 121 } ifreq; 122}; 123 124#define sc_ifflags sc_ifp->if_flags /* flags */ 125#define sc_ifname sc_ifp->if_xname /* name */ 126#define sc_capabilities sc_ifp->if_capabilities /* capabilities */ 127 128#define IFCAP_LAGG_MASK 0xffff0000 /* private capabilities */ 129#define IFCAP_LAGG_FULLDUPLEX 0x00010000 /* full duplex with >1 ports */ 130 131/* Private data used by the loadbalancing protocol */ 132#define LAGG_LB_MAXKEYS 8 133struct lagg_lb { 134 u_int32_t lb_key; 135 struct lagg_port *lb_ports[LAGG_MAX_PORTS]; 136}; 137 138struct lagg_mc { 139 struct ifmultiaddr *mc_ifma; 140 SLIST_ENTRY(lagg_mc) mc_entries; 141}; 142 143/* List of interfaces to have the MAC address modified */ 144struct lagg_llq { 145 struct ifnet *llq_ifp; 146 uint8_t llq_lladdr[ETHER_ADDR_LEN]; 147 SLIST_ENTRY(lagg_llq) llq_entries; 148}; 149 150struct lagg_softc { 151 struct ifnet *sc_ifp; /* virtual interface */ 152 struct rwlock sc_mtx; 153 int sc_proto; /* lagg protocol */ 154 u_int sc_count; /* number of ports */ 155 struct lagg_port *sc_primary; /* primary port */ 156 struct ifmedia sc_media; /* media config */ 157 caddr_t sc_psc; /* protocol data */ 158 159 SLIST_HEAD(__tplhd, lagg_port) sc_ports; /* list of interfaces */ 160 SLIST_ENTRY(lagg_softc) sc_entries; 161 162 struct task sc_lladdr_task; 163 SLIST_HEAD(__llqhd, lagg_llq) sc_llq_head; /* interfaces to program 164 the lladdr on */ 165 166 /* lagg protocol callbacks */ 167 int (*sc_detach)(struct lagg_softc *); 168 int (*sc_start)(struct lagg_softc *, struct mbuf *); 169 struct mbuf *(*sc_input)(struct lagg_softc *, struct lagg_port *, 170 struct mbuf *); 171 int (*sc_port_create)(struct lagg_port *); 172 void (*sc_port_destroy)(struct lagg_port *); 173 void (*sc_linkstate)(struct lagg_port *); 174 void (*sc_init)(struct lagg_softc *); 175 void (*sc_stop)(struct lagg_softc *); 176 void (*sc_lladdr)(struct lagg_softc *); 177}; 178 179struct lagg_port { 180 struct ifnet *lp_ifp; /* physical interface */ 181 struct lagg_softc *lp_lagg; /* parent lagg */ 182 uint8_t lp_lladdr[ETHER_ADDR_LEN]; 183 184 u_char lp_iftype; /* interface type */ 185 uint32_t lp_prio; /* port priority */ 186 uint32_t lp_flags; /* port flags */ 187 int lp_ifflags; /* saved ifp flags */ 188 void *lh_cookie; /* if state hook */ 189 caddr_t lp_psc; /* protocol data */ 190 int lp_detaching; /* ifnet is detaching */ 191 192 SLIST_HEAD(__mclhd, lagg_mc) lp_mc_head; /* multicast addresses */ 193 194 /* Redirected callbacks */ 195 int (*lp_ioctl)(struct ifnet *, u_long, caddr_t); 196 int (*lp_output)(struct ifnet *, struct mbuf *, struct sockaddr *, 197 struct rtentry *); 198 199 SLIST_ENTRY(lagg_port) lp_entries; 200}; 201 202#define LAGG_LOCK_INIT(_sc) rw_init(&(_sc)->sc_mtx, "if_lagg rwlock") 203#define LAGG_LOCK_DESTROY(_sc) rw_destroy(&(_sc)->sc_mtx) 204#define LAGG_RLOCK(_sc) rw_rlock(&(_sc)->sc_mtx) 205#define LAGG_WLOCK(_sc) rw_wlock(&(_sc)->sc_mtx) 206#define LAGG_RUNLOCK(_sc) rw_runlock(&(_sc)->sc_mtx) 207#define LAGG_WUNLOCK(_sc) rw_wunlock(&(_sc)->sc_mtx) 208#define LAGG_RLOCK_ASSERT(_sc) rw_assert(&(_sc)->sc_mtx, RA_RLOCKED) 209#define LAGG_WLOCK_ASSERT(_sc) rw_assert(&(_sc)->sc_mtx, RA_WLOCKED) 210 211extern struct mbuf *(*lagg_input_p)(struct ifnet *, struct mbuf *); 212extern void (*lagg_linkstate_p)(struct ifnet *, int ); 213 214int lagg_enqueue(struct ifnet *, struct mbuf *); 215uint32_t lagg_hashmbuf(struct mbuf *, uint32_t); 216 217#endif /* _KERNEL */ 218 219#endif /* _NET_LAGG_H */ 220