Annotation of sys/net/if_trunk.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: if_trunk.h,v 1.12 2007/04/26 08:57:59 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:
! 19: #ifndef _NET_TRUNK_H
! 20: #define _NET_TRUNK_H
! 21:
! 22: /*
! 23: * Global definitions
! 24: */
! 25:
! 26: #define TRUNK_MAX_PORTS 32 /* logically */
! 27: #define TRUNK_MAX_NAMESIZE 32 /* name of a protocol */
! 28: #define TRUNK_MAX_STACKING 4 /* maximum number of stacked trunks */
! 29:
! 30: /* Port flags */
! 31: #define TRUNK_PORT_SLAVE 0x00000000 /* normal enslaved port */
! 32: #define TRUNK_PORT_MASTER 0x00000001 /* primary port */
! 33: #define TRUNK_PORT_STACK 0x00000002 /* stacked trunk port */
! 34: #define TRUNK_PORT_ACTIVE 0x00000004 /* port is active */
! 35: #define TRUNK_PORT_GLOBAL 0x80000000 /* IOCTL: global flag */
! 36: #define TRUNK_PORT_BITS \
! 37: "\20\01MASTER\02STACK\03ACTIVE"
! 38:
! 39: /* Supported trunk PROTOs */
! 40: enum trunk_proto {
! 41: TRUNK_PROTO_NONE = 0, /* no trunk protocol defined */
! 42: TRUNK_PROTO_ROUNDROBIN = 1, /* simple round robin */
! 43: TRUNK_PROTO_FAILOVER = 2, /* active failover */
! 44: TRUNK_PROTO_LOADBALANCE = 3, /* loadbalance */
! 45: TRUNK_PROTO_MAX = 4
! 46: };
! 47:
! 48: struct trunk_protos {
! 49: const char *tpr_name;
! 50: enum trunk_proto tpr_proto;
! 51: };
! 52:
! 53: #define TRUNK_PROTO_DEFAULT TRUNK_PROTO_ROUNDROBIN
! 54: #define TRUNK_PROTOS { \
! 55: { "roundrobin", TRUNK_PROTO_ROUNDROBIN }, \
! 56: { "failover", TRUNK_PROTO_FAILOVER }, \
! 57: { "loadbalance", TRUNK_PROTO_LOADBALANCE }, \
! 58: { "none", TRUNK_PROTO_NONE }, \
! 59: { "default", TRUNK_PROTO_DEFAULT } \
! 60: }
! 61:
! 62: /*
! 63: * Trunk ioctls.
! 64: */
! 65:
! 66: /* Trunk port settings */
! 67: struct trunk_reqport {
! 68: char rp_ifname[IFNAMSIZ]; /* name of the trunk */
! 69: char rp_portname[IFNAMSIZ]; /* name of the port */
! 70: u_int32_t rp_prio; /* port priority */
! 71: u_int32_t rp_flags; /* port flags */
! 72: };
! 73:
! 74: #define SIOCGTRUNKPORT _IOWR('i', 140, struct trunk_reqport)
! 75: #define SIOCSTRUNKPORT _IOW('i', 141, struct trunk_reqport)
! 76: #define SIOCSTRUNKDELPORT _IOW('i', 142, struct trunk_reqport)
! 77:
! 78: /* Trunk, ports and options */
! 79: struct trunk_reqall {
! 80: char ra_ifname[IFNAMSIZ]; /* name of the trunk */
! 81: u_int ra_proto; /* trunk protocol */
! 82:
! 83: size_t ra_size; /* size of buffer */
! 84: struct trunk_reqport *ra_port; /* allocated buffer */
! 85: int ra_ports; /* total port count */
! 86: };
! 87:
! 88: #define SIOCGTRUNK _IOWR('i', 143, struct trunk_reqall)
! 89: #define SIOCSTRUNK _IOW('i', 144, struct trunk_reqall)
! 90:
! 91: #ifdef _KERNEL
! 92: /*
! 93: * Internal kernel part
! 94: */
! 95: struct trunk_softc;
! 96: struct trunk_port {
! 97: struct ifnet *tp_if; /* physical interface */
! 98: struct trunk_softc *tp_trunk; /* parent trunk */
! 99: u_int8_t tp_lladdr[ETHER_ADDR_LEN];
! 100: caddr_t tp_psc; /* protocol data */
! 101:
! 102: u_char tp_iftype; /* interface type */
! 103: u_int32_t tp_prio; /* port priority */
! 104: u_int32_t tp_flags; /* port flags */
! 105: void *lh_cookie; /* if state hook */
! 106:
! 107: /* Redirected callbacks */
! 108: void (*tp_watchdog)(struct ifnet *);
! 109: int (*tp_ioctl)(struct ifnet *, u_long, caddr_t);
! 110:
! 111: SLIST_ENTRY(trunk_port) tp_entries;
! 112: };
! 113:
! 114: #define tp_ifname tp_if->if_xname /* interface name */
! 115: #define tp_ifflags tp_if->if_flags /* interface flags */
! 116: #define tp_link_state tp_if->if_link_state /* link state */
! 117: #define tp_capabilities tp_if->if_capabilities /* capabilities */
! 118:
! 119: #define TRUNK_PORTACTIVE(_tp) ( \
! 120: (LINK_STATE_IS_UP((_tp)->tp_link_state)) && \
! 121: ((_tp)->tp_ifflags & IFF_UP) \
! 122: )
! 123:
! 124: struct trunk_mc {
! 125: union {
! 126: struct ether_multi *mcu_enm;
! 127: } mc_u;
! 128: struct sockaddr_storage mc_addr;
! 129:
! 130: SLIST_ENTRY(trunk_mc) mc_entries;
! 131: };
! 132:
! 133: #define mc_enm mc_u.mcu_enm
! 134:
! 135: struct trunk_ifreq {
! 136: union {
! 137: struct ifreq ifreq;
! 138: struct {
! 139: char ifr_name[IFNAMSIZ];
! 140: struct sockaddr_storage ifr_ss;
! 141: } ifreq_storage;
! 142: } ifreq;
! 143: };
! 144:
! 145: struct trunk_softc {
! 146: struct arpcom tr_ac; /* virtual interface */
! 147: int tr_unit; /* trunk unit */
! 148: enum trunk_proto tr_proto; /* trunk protocol */
! 149: u_int tr_count; /* number of ports */
! 150: struct trunk_port *tr_primary; /* primary port */
! 151: struct ifmedia tr_media; /* media config */
! 152: caddr_t tr_psc; /* protocol data */
! 153:
! 154: SLIST_HEAD(__tplhd, trunk_port) tr_ports; /* list of interfaces */
! 155: SLIST_ENTRY(trunk_softc) tr_entries;
! 156:
! 157: SLIST_HEAD(__mclhd, trunk_mc) tr_mc_head; /* multicast addresses */
! 158:
! 159: /* Trunk protocol callbacks */
! 160: int (*tr_detach)(struct trunk_softc *);
! 161: int (*tr_start)(struct trunk_softc *, struct mbuf *);
! 162: int (*tr_watchdog)(struct trunk_softc *);
! 163: int (*tr_input)(struct trunk_softc *, struct trunk_port *,
! 164: struct ether_header *, struct mbuf *);
! 165: int (*tr_port_create)(struct trunk_port *);
! 166: void (*tr_port_destroy)(struct trunk_port *);
! 167: void (*tr_linkstate)(struct trunk_port *);
! 168: void (*tr_init)(struct trunk_softc *);
! 169: void (*tr_stop)(struct trunk_softc *);
! 170: };
! 171:
! 172: #define tr_ifflags tr_ac.ac_if.if_flags /* flags */
! 173: #define tr_ifname tr_ac.ac_if.if_xname /* name */
! 174: #define tr_capabilities tr_ac.ac_if.if_capabilities /* capabilities */
! 175: #define tr_ifindex tr_ac.ac_if.if_index /* int index */
! 176: #define tr_lladdr tr_ac.ac_enaddr /* lladdr */
! 177:
! 178: #define IFCAP_TRUNK_MASK 0xffff0000 /* private capabilities */
! 179: #define IFCAP_TRUNK_FULLDUPLEX 0x00010000 /* full duplex with >1 ports */
! 180:
! 181: /* Private data used by the loadbalancing protocol */
! 182: #define TRUNK_LB_MAXKEYS 8
! 183: struct trunk_lb {
! 184: u_int32_t lb_key;
! 185: struct trunk_port *lb_ports[TRUNK_MAX_PORTS];
! 186: };
! 187:
! 188: void trunk_port_ifdetach(struct ifnet *);
! 189: int trunk_input(struct ifnet *, struct ether_header *,
! 190: struct mbuf *);
! 191: int trunk_enqueue(struct ifnet *, struct mbuf *);
! 192: u_int32_t trunk_hashmbuf(struct mbuf *, u_int32_t);
! 193: #endif /* _KERNEL */
! 194:
! 195: #endif /* _NET_TRUNK_H */
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