146 lines
4.4 KiB
C
146 lines
4.4 KiB
C
/* $NetBSD: if_agrvar_impl.h,v 1.7 2007/05/20 07:57:04 yamt Exp $ */
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/*-
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* Copyright (c)2005 YAMAMOTO Takashi,
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _NET_AGR_IF_AGRVAR_IMPL_H_
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#define _NET_AGR_IF_AGRVAR_IMPL_H_
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/*
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* implementaion details for agr(4) driver. (contrast to if_agrvar.h)
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*/
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#include <sys/mutex.h>
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#include <sys/queue.h>
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struct agr_port;
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struct agr_softc;
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struct agr_port {
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struct ifnet *port_agrifp;
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struct ifnet *port_ifp;
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TAILQ_ENTRY(agr_port) port_q;
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int (*port_ioctl)(struct ifnet *, u_long, void *);
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void *port_iftprivate;
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int port_flags;
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u_int port_media;
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char port_origlladdr[0];
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};
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#define AGRPORT_COLLECTING 0x00000001
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#define AGRPORT_DISTRIBUTING 0x00000002
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#define AGRPORT_PROMISC 0x00000004
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#define AGRPORT_LADDRCHANGED 0x00000008
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#define AGRPORT_ATTACHED 0x00000010
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#define AGRPORT_LARVAL 0x00000020
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#define AGRPORT_DETACHING 0x00000040
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struct agr_iftype_ops {
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void (*iftop_tick)(struct agr_softc *);
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void (*iftop_porttick)(struct agr_softc *, struct agr_port *);
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void (*iftop_portstate)(struct agr_port *);
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/*
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* iftop_ctor:
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* - inherit setting (eg. L1 address) from the first port.
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* - initialize if_output, if_input, if_dlt, etc.
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* (in the case of IFT_ETHER, ether_ifattach.
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*/
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int (*iftop_ctor)(struct agr_softc *, struct ifnet *);
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void (*iftop_dtor)(struct agr_softc *);
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/*
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* iftop_portinit:
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* propagate setting to a newly added port.
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*/
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int (*iftop_portinit)(struct agr_softc *, struct agr_port *);
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/*
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* iftop_portfini:
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* restore setting of a port being removed.
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*/
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int (*iftop_portfini)(struct agr_softc *, struct agr_port *);
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struct agr_port *(*iftop_select_tx_port)(struct agr_softc *,
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struct mbuf *);
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uint32_t (*iftop_hashmbuf)(struct agr_softc *, struct mbuf *);
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int (*iftop_configmulti_port)(struct agr_softc *, struct agr_port *,
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bool);
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int (*iftop_configmulti_ifreq)(struct agr_softc *, struct ifreq *,
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bool);
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};
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struct agr_ifreq {
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char ifr_name[IFNAMSIZ];
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struct sockaddr_storage ifr_ss;
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};
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struct agr_softc {
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kmutex_t sc_ioctl_lock;
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kmutex_t sc_lock;
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struct callout sc_callout;
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int sc_nports;
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TAILQ_HEAD(, agr_port) sc_ports;
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const struct agr_iftype_ops *sc_iftop;
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uint32_t sc_rr_counter; /* distributor algorithm specific */
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void *sc_iftprivate;
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struct ifnet sc_if; /* should be the last. see agr_alloc_softc(). */
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};
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#define AGR_SC_FROM_PORT(port) \
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((struct agr_softc *)(port)->port_agrifp->if_softc)
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#define AGR_LOCK(sc) agr_lock(sc)
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#define AGR_UNLOCK(sc) agr_unlock(sc)
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#define AGR_ASSERT_LOCKED(sc) KASSERT(mutex_owned(&(sc)->sc_lock))
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void agr_lock(struct agr_softc *);
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void agr_unlock(struct agr_softc *);
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void agr_ioctl_lock(struct agr_softc *);
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void agr_ioctl_unlock(struct agr_softc *);
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int agrport_ioctl(struct agr_port *, u_long, void *);
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struct agr_softc *agr_alloc_softc(void);
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void agr_free_softc(struct agr_softc *);
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int agr_xmit_frame(struct ifnet *, struct mbuf *); /* XXX */
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#define AGR_ROUNDROBIN(sc) (((sc)->sc_if.if_flags & IFF_LINK0) != 0)
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void agrtimer_init(struct agr_softc *);
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void agrtimer_start(struct agr_softc *);
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void agrtimer_stop(struct agr_softc *);
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void agrport_monitor(struct agr_port *);
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#endif /* !_NET_AGR_IF_AGRVAR_IMPL_H_ */
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