if_lagg.h revision 232008
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 232008 2012-02-22 22:01:30Z thompsa $ 19 */ 20 21#ifndef _NET_LAGG_H 22#define _NET_LAGG_H 23 24#include <sys/sysctl.h> 25 26/* 27 * Global definitions 28 */ 29 30#define LAGG_MAX_PORTS 32 /* logically */ 31#define LAGG_MAX_NAMESIZE 32 /* name of a protocol */ 32#define LAGG_MAX_STACKING 4 /* maximum number of stacked laggs */ 33 34/* Port flags */ 35#define LAGG_PORT_SLAVE 0x00000000 /* normal enslaved port */ 36#define LAGG_PORT_MASTER 0x00000001 /* primary port */ 37#define LAGG_PORT_STACK 0x00000002 /* stacked lagg port */ 38#define LAGG_PORT_ACTIVE 0x00000004 /* port is active */ 39#define LAGG_PORT_COLLECTING 0x00000008 /* port is receiving frames */ 40#define LAGG_PORT_DISTRIBUTING 0x00000010 /* port is sending frames */ 41#define LAGG_PORT_DISABLED 0x00000020 /* port is disabled */ 42#define LAGG_PORT_BITS "\20\01MASTER\02STACK\03ACTIVE\04COLLECTING" \ 43 "\05DISTRIBUTING\06DISABLED" 44 45/* Supported lagg PROTOs */ 46#define LAGG_PROTO_NONE 0 /* no lagg protocol defined */ 47#define LAGG_PROTO_ROUNDROBIN 1 /* simple round robin */ 48#define LAGG_PROTO_FAILOVER 2 /* active failover */ 49#define LAGG_PROTO_LOADBALANCE 3 /* loadbalance */ 50#define LAGG_PROTO_LACP 4 /* 802.3ad lacp */ 51#define LAGG_PROTO_ETHERCHANNEL 5 /* Cisco FEC */ 52#define LAGG_PROTO_MAX 6 53 54struct lagg_protos { 55 const char *lpr_name; 56 int lpr_proto; 57}; 58 59#define LAGG_PROTO_DEFAULT LAGG_PROTO_FAILOVER 60#define LAGG_PROTOS { \ 61 { "failover", LAGG_PROTO_FAILOVER }, \ 62 { "fec", LAGG_PROTO_ETHERCHANNEL }, \ 63 { "lacp", LAGG_PROTO_LACP }, \ 64 { "loadbalance", LAGG_PROTO_LOADBALANCE }, \ 65 { "roundrobin", LAGG_PROTO_ROUNDROBIN }, \ 66 { "none", LAGG_PROTO_NONE }, \ 67 { "default", LAGG_PROTO_DEFAULT } \ 68} 69 70/* 71 * lagg ioctls. 72 */ 73 74/* 75 * LACP current operational parameters structure. 76 */ 77struct lacp_opreq { 78 uint16_t actor_prio; 79 uint8_t actor_mac[ETHER_ADDR_LEN]; 80 uint16_t actor_key; 81 uint16_t actor_portprio; 82 uint16_t actor_portno; 83 uint8_t actor_state; 84 uint16_t partner_prio; 85 uint8_t partner_mac[ETHER_ADDR_LEN]; 86 uint16_t partner_key; 87 uint16_t partner_portprio; 88 uint16_t partner_portno; 89 uint8_t partner_state; 90}; 91 92/* lagg port settings */ 93struct lagg_reqport { 94 char rp_ifname[IFNAMSIZ]; /* name of the lagg */ 95 char rp_portname[IFNAMSIZ]; /* name of the port */ 96 u_int32_t rp_prio; /* port priority */ 97 u_int32_t rp_flags; /* port flags */ 98 union { 99 struct lacp_opreq rpsc_lacp; 100 } rp_psc; 101#define rp_lacpreq rp_psc.rpsc_lacp 102}; 103 104#define SIOCGLAGGPORT _IOWR('i', 140, struct lagg_reqport) 105#define SIOCSLAGGPORT _IOW('i', 141, struct lagg_reqport) 106#define SIOCSLAGGDELPORT _IOW('i', 142, struct lagg_reqport) 107 108/* lagg, ports and options */ 109struct lagg_reqall { 110 char ra_ifname[IFNAMSIZ]; /* name of the lagg */ 111 u_int ra_proto; /* lagg protocol */ 112 113 size_t ra_size; /* size of buffer */ 114 struct lagg_reqport *ra_port; /* allocated buffer */ 115 int ra_ports; /* total port count */ 116 union { 117 struct lacp_opreq rpsc_lacp; 118 } ra_psc; 119#define ra_lacpreq ra_psc.rpsc_lacp 120}; 121 122#define SIOCGLAGG _IOWR('i', 143, struct lagg_reqall) 123#define SIOCSLAGG _IOW('i', 144, struct lagg_reqall) 124 125#ifdef _KERNEL 126/* 127 * Internal kernel part 128 */ 129 130#define lp_ifname lp_ifp->if_xname /* interface name */ 131#define lp_link_state lp_ifp->if_link_state /* link state */ 132 133#define LAGG_PORTACTIVE(_tp) ( \ 134 ((_tp)->lp_link_state == LINK_STATE_UP) && \ 135 ((_tp)->lp_ifp->if_flags & IFF_UP) \ 136) 137 138struct lagg_ifreq { 139 union { 140 struct ifreq ifreq; 141 struct { 142 char ifr_name[IFNAMSIZ]; 143 struct sockaddr_storage ifr_ss; 144 } ifreq_storage; 145 } ifreq; 146}; 147 148#define sc_ifflags sc_ifp->if_flags /* flags */ 149#define sc_ifname sc_ifp->if_xname /* name */ 150#define sc_capabilities sc_ifp->if_capabilities /* capabilities */ 151 152#define IFCAP_LAGG_MASK 0xffff0000 /* private capabilities */ 153#define IFCAP_LAGG_FULLDUPLEX 0x00010000 /* full duplex with >1 ports */ 154 155/* Private data used by the loadbalancing protocol */ 156struct lagg_lb { 157 u_int32_t lb_key; 158 struct lagg_port *lb_ports[LAGG_MAX_PORTS]; 159}; 160 161struct lagg_mc { 162 struct ifmultiaddr *mc_ifma; 163 SLIST_ENTRY(lagg_mc) mc_entries; 164}; 165 166/* List of interfaces to have the MAC address modified */ 167struct lagg_llq { 168 struct ifnet *llq_ifp; 169 uint8_t llq_lladdr[ETHER_ADDR_LEN]; 170 SLIST_ENTRY(lagg_llq) llq_entries; 171}; 172 173struct lagg_softc { 174 struct ifnet *sc_ifp; /* virtual interface */ 175 struct rwlock sc_mtx; 176 int sc_proto; /* lagg protocol */ 177 u_int sc_count; /* number of ports */ 178 struct lagg_port *sc_primary; /* primary port */ 179 struct ifmedia sc_media; /* media config */ 180 caddr_t sc_psc; /* protocol data */ 181 uint32_t sc_seq; /* sequence counter */ 182 183 SLIST_HEAD(__tplhd, lagg_port) sc_ports; /* list of interfaces */ 184 SLIST_ENTRY(lagg_softc) sc_entries; 185 186 struct task sc_lladdr_task; 187 SLIST_HEAD(__llqhd, lagg_llq) sc_llq_head; /* interfaces to program 188 the lladdr on */ 189 190 /* lagg protocol callbacks */ 191 int (*sc_detach)(struct lagg_softc *); 192 int (*sc_start)(struct lagg_softc *, struct mbuf *); 193 struct mbuf *(*sc_input)(struct lagg_softc *, struct lagg_port *, 194 struct mbuf *); 195 int (*sc_port_create)(struct lagg_port *); 196 void (*sc_port_destroy)(struct lagg_port *); 197 void (*sc_linkstate)(struct lagg_port *); 198 void (*sc_init)(struct lagg_softc *); 199 void (*sc_stop)(struct lagg_softc *); 200 void (*sc_lladdr)(struct lagg_softc *); 201 void (*sc_req)(struct lagg_softc *, caddr_t); 202 void (*sc_portreq)(struct lagg_port *, caddr_t); 203#if __FreeBSD_version >= 800000 204 eventhandler_tag vlan_attach; 205 eventhandler_tag vlan_detach; 206#endif 207 struct sysctl_ctx_list ctx; /* sysctl variables */ 208 int use_flowid; /* use M_FLOWID */ 209}; 210 211struct lagg_port { 212 struct ifnet *lp_ifp; /* physical interface */ 213 struct lagg_softc *lp_softc; /* parent lagg */ 214 uint8_t lp_lladdr[ETHER_ADDR_LEN]; 215 216 u_char lp_iftype; /* interface type */ 217 uint32_t lp_prio; /* port priority */ 218 uint32_t lp_flags; /* port flags */ 219 int lp_ifflags; /* saved ifp flags */ 220 void *lh_cookie; /* if state hook */ 221 caddr_t lp_psc; /* protocol data */ 222 int lp_detaching; /* ifnet is detaching */ 223 224 SLIST_HEAD(__mclhd, lagg_mc) lp_mc_head; /* multicast addresses */ 225 226 /* Redirected callbacks */ 227 int (*lp_ioctl)(struct ifnet *, u_long, caddr_t); 228 int (*lp_output)(struct ifnet *, struct mbuf *, struct sockaddr *, 229 struct route *); 230 231 SLIST_ENTRY(lagg_port) lp_entries; 232}; 233 234#define LAGG_LOCK_INIT(_sc) rw_init(&(_sc)->sc_mtx, "if_lagg rwlock") 235#define LAGG_LOCK_DESTROY(_sc) rw_destroy(&(_sc)->sc_mtx) 236#define LAGG_RLOCK(_sc) rw_rlock(&(_sc)->sc_mtx) 237#define LAGG_WLOCK(_sc) rw_wlock(&(_sc)->sc_mtx) 238#define LAGG_RUNLOCK(_sc) rw_runlock(&(_sc)->sc_mtx) 239#define LAGG_WUNLOCK(_sc) rw_wunlock(&(_sc)->sc_mtx) 240#define LAGG_RLOCK_ASSERT(_sc) rw_assert(&(_sc)->sc_mtx, RA_RLOCKED) 241#define LAGG_WLOCK_ASSERT(_sc) rw_assert(&(_sc)->sc_mtx, RA_WLOCKED) 242 243extern struct mbuf *(*lagg_input_p)(struct ifnet *, struct mbuf *); 244extern void (*lagg_linkstate_p)(struct ifnet *, int ); 245 246int lagg_enqueue(struct ifnet *, struct mbuf *); 247uint32_t lagg_hashmbuf(struct mbuf *, uint32_t); 248 249#endif /* _KERNEL */ 250 251#endif /* _NET_LAGG_H */ 252