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Diffstat (limited to 'sys/net/if_lagg.h')
| -rw-r--r-- | sys/net/if_lagg.h | 300 |
1 files changed, 300 insertions, 0 deletions
diff --git a/sys/net/if_lagg.h b/sys/net/if_lagg.h new file mode 100644 index 000000000000..90d7d088565d --- /dev/null +++ b/sys/net/if_lagg.h @@ -0,0 +1,300 @@ +/* $OpenBSD: if_trunk.h,v 1.11 2007/01/31 06:20:19 reyk Exp $ */ + +/* + * Copyright (c) 2005, 2006 Reyk Floeter <reyk@openbsd.org> + * + * 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. + */ + +#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 */ + +/* Lagg flags */ +#define LAGG_F_HASHL2 0x00000001 /* hash layer 2 */ +#define LAGG_F_HASHL3 0x00000002 /* hash layer 3 */ +#define LAGG_F_HASHL4 0x00000004 /* hash layer 4 */ +#define LAGG_F_HASHMASK 0x00000007 + +/* 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 receiving frames */ +#define LAGG_PORT_DISTRIBUTING 0x00000010 /* port is sending frames */ +#define LAGG_PORT_BITS "\20\01MASTER\02STACK\03ACTIVE\04COLLECTING" \ + "\05DISTRIBUTING" + +/* Supported lagg PROTOs */ +typedef enum { + LAGG_PROTO_NONE = 0, /* no lagg protocol defined */ + LAGG_PROTO_ROUNDROBIN, /* simple round robin */ + LAGG_PROTO_FAILOVER, /* active failover */ + LAGG_PROTO_LOADBALANCE, /* loadbalance */ + LAGG_PROTO_LACP, /* 802.3ad lacp */ + LAGG_PROTO_BROADCAST, /* broadcast */ + LAGG_PROTO_MAX, +} lagg_proto; + +struct lagg_protos { + const char *lpr_name; + lagg_proto lpr_proto; +}; + +#define LAGG_PROTO_DEFAULT LAGG_PROTO_FAILOVER +#define LAGG_PROTOS { \ + { "failover", LAGG_PROTO_FAILOVER }, \ + { "lacp", LAGG_PROTO_LACP }, \ + { "loadbalance", LAGG_PROTO_LOADBALANCE }, \ + { "roundrobin", LAGG_PROTO_ROUNDROBIN }, \ + { "broadcast", LAGG_PROTO_BROADCAST }, \ + { "none", LAGG_PROTO_NONE }, \ + { "default", LAGG_PROTO_DEFAULT } \ +} + +/* Supported lagg TYPEs */ +typedef enum { + LAGG_TYPE_ETHERNET = 0, /* ethernet (default) */ + LAGG_TYPE_INFINIBAND, /* infiniband */ + LAGG_TYPE_MAX, +} lagg_type; + +struct lagg_types { + const char *lt_name; + lagg_type lt_value; +}; + +#define LAGG_TYPE_DEFAULT LAGG_TYPE_ETHERNET +#define LAGG_TYPES { \ + { "ethernet", LAGG_TYPE_ETHERNET }, \ + { "infiniband", LAGG_TYPE_INFINIBAND }, \ +} + +/* + * lagg create clone params + */ +struct iflaggparam { + uint8_t lagg_type; /* see LAGG_TYPE_XXX */ + uint8_t reserved_8[3]; + uint32_t reserved_32[3]; +}; + +/* + * lagg ioctls. + */ + +/* + * LACP current operational parameters structure. + */ +struct lacp_opreq { + uint16_t actor_prio; + uint8_t actor_mac[ETHER_ADDR_LEN]; + uint16_t actor_key; + uint16_t actor_portprio; + uint16_t actor_portno; + uint8_t actor_state; + uint16_t partner_prio; + uint8_t partner_mac[ETHER_ADDR_LEN]; + uint16_t partner_key; + uint16_t partner_portprio; + uint16_t partner_portno; + uint8_t partner_state; +}; + +/* 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 */ + union { + struct lacp_opreq rpsc_lacp; + } rp_psc; +#define rp_lacpreq rp_psc.rpsc_lacp +}; + +#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 */ + union { + struct lacp_opreq rpsc_lacp; + } ra_psc; +#define ra_lacpreq ra_psc.rpsc_lacp +}; + +#define SIOCGLAGG _IOWR('i', 143, struct lagg_reqall) +#define SIOCSLAGG _IOW('i', 144, struct lagg_reqall) + +struct lagg_reqflags { + char rf_ifname[IFNAMSIZ]; /* name of the lagg */ + uint32_t rf_flags; /* lagg protocol */ +}; + +#define SIOCGLAGGFLAGS _IOWR('i', 145, struct lagg_reqflags) +#define SIOCSLAGGHASH _IOW('i', 146, struct lagg_reqflags) + +struct lagg_reqopts { + char ro_ifname[IFNAMSIZ]; /* name of the lagg */ + + int ro_opts; /* Option bitmap */ +#define LAGG_OPT_NONE 0x00 +#define LAGG_OPT_USE_FLOWID 0x01 /* enable use of flowid */ +/* Pseudo flags which are used in ro_opts but not stored into sc_opts. */ +#define LAGG_OPT_FLOWIDSHIFT 0x02 /* set flowid shift */ +#define LAGG_OPT_USE_NUMA 0x04 /* enable use of numa */ +#define LAGG_OPT_FLOWIDSHIFT_MASK 0x1f /* flowid is uint32_t */ +#define LAGG_OPT_LACP_STRICT 0x10 /* LACP strict mode */ +#define LAGG_OPT_LACP_TXTEST 0x20 /* LACP debug: txtest */ +#define LAGG_OPT_LACP_RXTEST 0x40 /* LACP debug: rxtest */ +#define LAGG_OPT_LACP_FAST_TIMO 0x80 /* LACP fast timeout */ +#define LAGG_OPT_RR_LIMIT 0x100 /* RR stride */ + u_int ro_count; /* number of ports */ + u_int ro_active; /* active port count */ + u_int ro_flapping; /* number of flapping */ + int ro_flowid_shift; /* shift the flowid */ + uint32_t ro_bkt; /* stride for RR */ +}; + +#define SIOCGLAGGOPTS _IOWR('i', 152, struct lagg_reqopts) +#define SIOCSLAGGOPTS _IOW('i', 153, struct lagg_reqopts) + +#define LAGG_OPT_BITS "\020\001USE_FLOWID\003USE_NUMA" \ + "\005LACP_STRICT\006LACP_TXTEST" \ + "\007LACP_RXTEST\010LACP_FAST_TIMO" + +#ifdef _KERNEL + +/* + * Internal kernel part + */ + +#define LAGG_PORTACTIVE(_tp) ( \ + ((_tp)->lp_ifp->if_link_state == LINK_STATE_UP) && \ + ((_tp)->lp_ifp->if_flags & IFF_UP) \ +) + +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 */ + +/* Private data used by the loadbalancing protocol */ +struct lagg_lb { + u_int32_t lb_key; + struct lagg_port *lb_ports[LAGG_MAX_PORTS]; +}; + +struct lagg_mc { + struct sockaddr_dl mc_addr; + struct ifmultiaddr *mc_ifma; + SLIST_ENTRY(lagg_mc) mc_entries; +}; + +struct lagg_counters { + uint64_t val[IFCOUNTERS]; +}; + +struct lagg_softc { + struct ifnet *sc_ifp; /* virtual interface */ + struct mtx sc_mtx; /* watchdog mutex */ + struct sx sc_sx; + int sc_proto; /* lagg protocol */ + u_int sc_count; /* number of ports */ + u_int sc_active; /* active port count */ + u_int sc_flapping; /* number of flapping + * events */ + struct lagg_port *sc_primary; /* primary port */ + struct ifmedia sc_media; /* media config */ + void *sc_psc; /* protocol data */ + uint32_t sc_seq; /* sequence counter */ + uint32_t sc_stride; /* stride for RR */ + uint32_t sc_flags; + int sc_destroying; /* destroying lagg */ + + CK_SLIST_HEAD(__tplhd, lagg_port) sc_ports; /* list of interfaces */ + SLIST_ENTRY(lagg_softc) sc_entries; + + eventhandler_tag vlan_attach; + eventhandler_tag vlan_detach; + struct callout sc_callout; + u_int sc_opts; + int flowid_shift; /* shift the flowid */ + struct lagg_counters detached_counters; /* detached ports sum */ + struct callout sc_watchdog; /* watchdog timer */ +#define LAGG_ADDR_LEN \ + MAX(INFINIBAND_ADDR_LEN, ETHER_ADDR_LEN) + uint8_t sc_bcast_addr[LAGG_ADDR_LEN]; +}; + +struct lagg_port { + struct ifnet *lp_ifp; /* physical interface */ + struct lagg_softc *lp_softc; /* parent lagg */ + uint8_t lp_lladdr[LAGG_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 */ + int lp_ifcapenable; /* saved ifp capenable */ + int lp_ifcapenable2;/* saved ifp capenable2 */ + void *lh_cookie; /* if state hook */ + void *lp_psc; /* protocol data */ + int lp_detaching; /* ifnet is detaching */ + SLIST_HEAD(__mclhd, lagg_mc) lp_mc_head; /* multicast addresses */ + + /* Redirected callbacks */ + int (*lp_ioctl)(struct ifnet *, u_long, caddr_t); + int (*lp_output)(struct ifnet *, struct mbuf *, + const struct sockaddr *, struct route *); + struct lagg_counters port_counters; /* ifp counters copy */ + + CK_SLIST_ENTRY(lagg_port) lp_entries; + struct epoch_context lp_epoch_ctx; +}; + +extern struct mbuf *(*lagg_input_ethernet_p)(struct ifnet *, struct mbuf *); +extern struct mbuf *(*lagg_input_infiniband_p)(struct ifnet *, struct mbuf *); +extern void (*lagg_linkstate_p)(struct ifnet *, int ); + +int lagg_enqueue(struct ifnet *, struct mbuf *); + +SYSCTL_DECL(_net_link_lagg); + +#endif /* _KERNEL */ + +#endif /* _NET_LAGG_H */ |