sys/net/agr/if_agrvar_impl.h

   1 /*      $NetBSD: if_agrvar_impl.h,v 1.7 2007/05/20 07:57:04 yamt Exp $  */
   2
   3 /*-
   4  * Copyright (c)2005 YAMAMOTO Takashi,
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26  * SUCH DAMAGE.
  27  */
  28
  29 #ifndef _NET_AGR_IF_AGRVAR_IMPL_H_
  30 #define _NET_AGR_IF_AGRVAR_IMPL_H_
  31
  32 /*
  33  * implementaion details for agr(4) driver.  (contrast to if_agrvar.h)
  34  */
  35
  36 #include <sys/mutex.h>
  37 #include <sys/queue.h>
  38
  39 struct agr_port;
  40 struct agr_softc;
  41
  42 struct agr_port {
  43         struct ifnet *port_agrifp;
  44         struct ifnet *port_ifp;
  45         TAILQ_ENTRY(agr_port) port_q;
  46         int (*port_ioctl)(struct ifnet *, u_long, void *);
  47         void *port_iftprivate;
  48         int port_flags;
  49         u_int port_media;
  50         char port_origlladdr[0];
  51 };
  52 #define AGRPORT_COLLECTING      0x00000001
  53 #define AGRPORT_DISTRIBUTING    0x00000002
  54 #define AGRPORT_PROMISC         0x00000004
  55 #define AGRPORT_LADDRCHANGED    0x00000008
  56 #define AGRPORT_ATTACHED        0x00000010
  57 #define AGRPORT_LARVAL          0x00000020
  58 #define AGRPORT_DETACHING       0x00000040
  59
  60 struct agr_iftype_ops {
  61
  62         void (*iftop_tick)(struct agr_softc *);
  63         void (*iftop_porttick)(struct agr_softc *, struct agr_port *);
  64         void (*iftop_portstate)(struct agr_port *);
  65
  66         /*
  67          * iftop_ctor:
  68          * - inherit setting (eg. L1 address) from the first port.
  69          * - initialize if_output, if_input, if_dlt, etc.
  70          *   (in the case of IFT_ETHER, ether_ifattach.
  71          */
  72
  73         int (*iftop_ctor)(struct agr_softc *, struct ifnet *);
  74
  75         void (*iftop_dtor)(struct agr_softc *);
  76
  77         /*
  78          * iftop_portinit:
  79          * propagate setting to a newly added port.
  80          */
  81
  82         int (*iftop_portinit)(struct agr_softc *, struct agr_port *);
  83
  84         /*
  85          * iftop_portfini:
  86          * restore setting of a port being removed.
  87          */
  88         int (*iftop_portfini)(struct agr_softc *, struct agr_port *);
  89
  90         struct agr_port *(*iftop_select_tx_port)(struct agr_softc *,
  91             struct mbuf *);
  92         uint32_t (*iftop_hashmbuf)(struct agr_softc *, struct mbuf *);
  93
  94         int (*iftop_configmulti_port)(struct agr_softc *, struct agr_port *,
  95             bool);
  96         int (*iftop_configmulti_ifreq)(struct agr_softc *, struct ifreq *,
  97             bool);
  98 };
  99
 100 struct agr_ifreq {
 101         char ifr_name[IFNAMSIZ];
 102         struct sockaddr_storage ifr_ss;
 103 };
 104
 105 struct agr_softc {
 106         kmutex_t sc_ioctl_lock;
 107         kmutex_t sc_lock;
 108         struct callout sc_callout;
 109         int sc_nports;
 110         TAILQ_HEAD(, agr_port) sc_ports;
 111         const struct agr_iftype_ops *sc_iftop;
 112         uint32_t sc_rr_counter; /* distributor algorithm specific */
 113         void *sc_iftprivate;
 114         int sc_nvlans;          /* number of vlans attached */
 115         struct ifnet sc_if; /* should be the last. see agr_alloc_softc(). */
 116 };
 117
 118 #define AGR_SC_FROM_PORT(port) \
 119         ((struct agr_softc *)(port)->port_agrifp->if_softc)
 120
 121 #define AGR_LOCK(sc)            agr_lock(sc)
 122 #define AGR_UNLOCK(sc)          agr_unlock(sc)
 123 #define AGR_ASSERT_LOCKED(sc)   KASSERT(mutex_owned(&(sc)->sc_lock))
 124
 125 void agr_lock(struct agr_softc *);
 126 void agr_unlock(struct agr_softc *);
 127
 128 void agr_ioctl_lock(struct agr_softc *);
 129 void agr_ioctl_unlock(struct agr_softc *);
 130
 131 int agrport_ioctl(struct agr_port *, u_long, void *);
 132
 133 struct agr_softc *agr_alloc_softc(void);
 134 void agr_free_softc(struct agr_softc *);
 135
 136 int agr_xmit_frame(struct ifnet *, struct mbuf *); /* XXX */
 137
 138 #define AGR_ROUNDROBIN(sc)      (((sc)->sc_if.if_flags & IFF_LINK0) != 0)
 139 #define AGR_STATIC(sc)          (((sc)->sc_if.if_flags & IFF_LINK1) != 0)
 140
 141 void agrtimer_init(struct agr_softc *);
 142 void agrtimer_start(struct agr_softc *);
 143 void agrtimer_stop(struct agr_softc *);
 144
 145 void agrport_monitor(struct agr_port *);
 146
 147 #endif /* !_NET_AGR_IF_AGRVAR_IMPL_H_ */