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FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
Current File : //sys/net/ieee8023ad_lacp.h |
/* $NetBSD: ieee8023ad_impl.h,v 1.2 2005/12/10 23:21:39 elad Exp $ */ /*- * Copyright (c)2005 YAMAMOTO Takashi, * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD: release/9.1.0/sys/net/ieee8023ad_lacp.h 177289 2008-03-17 01:26:44Z thompsa $ */ /* * IEEE802.3ad LACP * * implementation details. */ #define LACP_TIMER_CURRENT_WHILE 0 #define LACP_TIMER_PERIODIC 1 #define LACP_TIMER_WAIT_WHILE 2 #define LACP_NTIMER 3 #define LACP_TIMER_ARM(port, timer, val) \ (port)->lp_timer[(timer)] = (val) #define LACP_TIMER_DISARM(port, timer) \ (port)->lp_timer[(timer)] = 0 #define LACP_TIMER_ISARMED(port, timer) \ ((port)->lp_timer[(timer)] > 0) /* * IEEE802.3ad LACP * * protocol definitions. */ #define LACP_STATE_ACTIVITY (1<<0) #define LACP_STATE_TIMEOUT (1<<1) #define LACP_STATE_AGGREGATION (1<<2) #define LACP_STATE_SYNC (1<<3) #define LACP_STATE_COLLECTING (1<<4) #define LACP_STATE_DISTRIBUTING (1<<5) #define LACP_STATE_DEFAULTED (1<<6) #define LACP_STATE_EXPIRED (1<<7) #define LACP_PORT_NTT 0x00000001 #define LACP_PORT_MARK 0x00000002 #define LACP_STATE_BITS \ "\020" \ "\001ACTIVITY" \ "\002TIMEOUT" \ "\003AGGREGATION" \ "\004SYNC" \ "\005COLLECTING" \ "\006DISTRIBUTING" \ "\007DEFAULTED" \ "\010EXPIRED" /* * IEEE802.3 slow protocols * * protocol (on-wire) definitions. * * XXX should be elsewhere. */ #define SLOWPROTOCOLS_SUBTYPE_LACP 1 #define SLOWPROTOCOLS_SUBTYPE_MARKER 2 struct slowprothdr { uint8_t sph_subtype; uint8_t sph_version; } __packed; /* * TLV on-wire structure. */ struct tlvhdr { uint8_t tlv_type; uint8_t tlv_length; /* uint8_t tlv_value[]; */ } __packed; /* * ... and our implementation. */ #define TLV_SET(tlv, type, length) \ do { \ (tlv)->tlv_type = (type); \ (tlv)->tlv_length = sizeof(*tlv) + (length); \ } while (/*CONSTCOND*/0) struct tlv_template { uint8_t tmpl_type; uint8_t tmpl_length; }; struct lacp_systemid { uint16_t lsi_prio; uint8_t lsi_mac[6]; } __packed; struct lacp_portid { uint16_t lpi_prio; uint16_t lpi_portno; } __packed; struct lacp_peerinfo { struct lacp_systemid lip_systemid; uint16_t lip_key; struct lacp_portid lip_portid; uint8_t lip_state; uint8_t lip_resv[3]; } __packed; struct lacp_collectorinfo { uint16_t lci_maxdelay; uint8_t lci_resv[12]; } __packed; struct lacpdu { struct ether_header ldu_eh; struct slowprothdr ldu_sph; struct tlvhdr ldu_tlv_actor; struct lacp_peerinfo ldu_actor; struct tlvhdr ldu_tlv_partner; struct lacp_peerinfo ldu_partner; struct tlvhdr ldu_tlv_collector; struct lacp_collectorinfo ldu_collector; struct tlvhdr ldu_tlv_term; uint8_t ldu_resv[50]; } __packed; /* * IEEE802.3ad marker protocol * * protocol (on-wire) definitions. */ struct lacp_markerinfo { uint16_t mi_rq_port; uint8_t mi_rq_system[ETHER_ADDR_LEN]; uint32_t mi_rq_xid; uint8_t mi_pad[2]; } __packed; struct markerdu { struct ether_header mdu_eh; struct slowprothdr mdu_sph; struct tlvhdr mdu_tlv; struct lacp_markerinfo mdu_info; struct tlvhdr mdu_tlv_term; uint8_t mdu_resv[90]; } __packed; #define MARKER_TYPE_INFO 0x01 #define MARKER_TYPE_RESPONSE 0x02 enum lacp_selected { LACP_UNSELECTED, LACP_STANDBY, /* not used in this implementation */ LACP_SELECTED, }; enum lacp_mux_state { LACP_MUX_DETACHED, LACP_MUX_WAITING, LACP_MUX_ATTACHED, LACP_MUX_COLLECTING, LACP_MUX_DISTRIBUTING, }; #define LACP_MAX_PORTS 32 struct lacp_portmap { int pm_count; struct lacp_port *pm_map[LACP_MAX_PORTS]; }; struct lacp_port { TAILQ_ENTRY(lacp_port) lp_dist_q; LIST_ENTRY(lacp_port) lp_next; struct lacp_softc *lp_lsc; struct lagg_port *lp_lagg; struct ifnet *lp_ifp; struct lacp_peerinfo lp_partner; struct lacp_peerinfo lp_actor; struct lacp_markerinfo lp_marker; #define lp_state lp_actor.lip_state #define lp_key lp_actor.lip_key #define lp_systemid lp_actor.lip_systemid struct timeval lp_last_lacpdu; int lp_lacpdu_sent; enum lacp_mux_state lp_mux_state; enum lacp_selected lp_selected; int lp_flags; u_int lp_media; /* XXX redundant */ int lp_timer[LACP_NTIMER]; struct ifmultiaddr *lp_ifma; struct lacp_aggregator *lp_aggregator; }; struct lacp_aggregator { TAILQ_ENTRY(lacp_aggregator) la_q; int la_refcnt; /* num of ports which selected us */ int la_nports; /* num of distributing ports */ TAILQ_HEAD(, lacp_port) la_ports; /* distributing ports */ struct lacp_peerinfo la_partner; struct lacp_peerinfo la_actor; int la_pending; /* number of ports in wait_while */ }; struct lacp_softc { struct lagg_softc *lsc_softc; struct mtx lsc_mtx; struct lacp_aggregator *lsc_active_aggregator; TAILQ_HEAD(, lacp_aggregator) lsc_aggregators; boolean_t lsc_suppress_distributing; struct callout lsc_transit_callout; struct callout lsc_callout; LIST_HEAD(, lacp_port) lsc_ports; struct lacp_portmap lsc_pmap[2]; volatile u_int lsc_activemap; u_int32_t lsc_hashkey; }; #define LACP_TYPE_ACTORINFO 1 #define LACP_TYPE_PARTNERINFO 2 #define LACP_TYPE_COLLECTORINFO 3 /* timeout values (in sec) */ #define LACP_FAST_PERIODIC_TIME (1) #define LACP_SLOW_PERIODIC_TIME (30) #define LACP_SHORT_TIMEOUT_TIME (3 * LACP_FAST_PERIODIC_TIME) #define LACP_LONG_TIMEOUT_TIME (3 * LACP_SLOW_PERIODIC_TIME) #define LACP_CHURN_DETECTION_TIME (60) #define LACP_AGGREGATE_WAIT_TIME (2) #define LACP_TRANSIT_DELAY 3000 /* in msec */ #define LACP_STATE_EQ(s1, s2, mask) \ ((((s1) ^ (s2)) & (mask)) == 0) #define LACP_SYS_PRI(peer) (peer).lip_systemid.lsi_prio #define LACP_PORT(_lp) ((struct lacp_port *)(_lp)->lp_psc) #define LACP_SOFTC(_sc) ((struct lacp_softc *)(_sc)->sc_psc) #define LACP_LOCK_INIT(_lsc) mtx_init(&(_lsc)->lsc_mtx, \ "lacp mtx", NULL, MTX_DEF) #define LACP_LOCK_DESTROY(_lsc) mtx_destroy(&(_lsc)->lsc_mtx) #define LACP_LOCK(_lsc) mtx_lock(&(_lsc)->lsc_mtx) #define LACP_UNLOCK(_lsc) mtx_unlock(&(_lsc)->lsc_mtx) #define LACP_LOCK_ASSERT(_lsc) mtx_assert(&(_lsc)->lsc_mtx, MA_OWNED) struct mbuf *lacp_input(struct lagg_port *, struct mbuf *); struct lagg_port *lacp_select_tx_port(struct lagg_softc *, struct mbuf *); int lacp_attach(struct lagg_softc *); int lacp_detach(struct lagg_softc *); void lacp_init(struct lagg_softc *); void lacp_stop(struct lagg_softc *); int lacp_port_create(struct lagg_port *); void lacp_port_destroy(struct lagg_port *); void lacp_linkstate(struct lagg_port *); void lacp_req(struct lagg_softc *, caddr_t); void lacp_portreq(struct lagg_port *, caddr_t); static __inline int lacp_isactive(struct lagg_port *lgp) { struct lacp_port *lp = LACP_PORT(lgp); struct lacp_softc *lsc = lp->lp_lsc; struct lacp_aggregator *la = lp->lp_aggregator; /* This port is joined to the active aggregator */ if (la != NULL && la == lsc->lsc_active_aggregator) return (1); return (0); } static __inline int lacp_iscollecting(struct lagg_port *lgp) { struct lacp_port *lp = LACP_PORT(lgp); return ((lp->lp_state & LACP_STATE_COLLECTING) != 0); } static __inline int lacp_isdistributing(struct lagg_port *lgp) { struct lacp_port *lp = LACP_PORT(lgp); return ((lp->lp_state & LACP_STATE_DISTRIBUTING) != 0); } /* following constants don't include terminating NUL */ #define LACP_MACSTR_MAX (2*6 + 5) #define LACP_SYSTEMPRIOSTR_MAX (4) #define LACP_SYSTEMIDSTR_MAX (LACP_SYSTEMPRIOSTR_MAX + 1 + LACP_MACSTR_MAX) #define LACP_PORTPRIOSTR_MAX (4) #define LACP_PORTNOSTR_MAX (4) #define LACP_PORTIDSTR_MAX (LACP_PORTPRIOSTR_MAX + 1 + LACP_PORTNOSTR_MAX) #define LACP_KEYSTR_MAX (4) #define LACP_PARTNERSTR_MAX \ (1 + LACP_SYSTEMIDSTR_MAX + 1 + LACP_KEYSTR_MAX + 1 \ + LACP_PORTIDSTR_MAX + 1) #define LACP_LAGIDSTR_MAX \ (1 + LACP_PARTNERSTR_MAX + 1 + LACP_PARTNERSTR_MAX + 1) #define LACP_STATESTR_MAX (255) /* XXX */