| 1 | /* $NetBSD: if_agrvar_impl.h,v 1.10 2010/05/26 23:46:44 dyoung 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_entry_mtx; |
| 107 | kmutex_t sc_lock; |
| 108 | kcondvar_t sc_ports_cv; |
| 109 | kcondvar_t sc_insc_cv; |
| 110 | volatile int sc_noentry; |
| 111 | volatile int sc_insc; |
| 112 | volatile bool sc_wrports; |
| 113 | volatile int sc_rdports; |
| 114 | volatile int sc_paused; |
| 115 | struct callout sc_callout; |
| 116 | int sc_nports; |
| 117 | TAILQ_HEAD(, agr_port) sc_ports; |
| 118 | const struct agr_iftype_ops *sc_iftop; |
| 119 | uint32_t sc_rr_counter; /* distributor algorithm specific */ |
| 120 | void *sc_iftprivate; |
| 121 | int sc_nvlans; /* number of vlans attached */ |
| 122 | struct ifnet sc_if; /* should be the last. see agr_alloc_softc(). */ |
| 123 | }; |
| 124 | |
| 125 | #define AGR_SC_FROM_PORT(port) \ |
| 126 | ((struct agr_softc *)(port)->port_agrifp->if_softc) |
| 127 | |
| 128 | #define AGR_LOCK(sc) agr_lock(sc) |
| 129 | #define AGR_UNLOCK(sc) agr_unlock(sc) |
| 130 | #define AGR_ASSERT_LOCKED(sc) KASSERT(mutex_owned(&(sc)->sc_lock)) |
| 131 | |
| 132 | void agr_lock(struct agr_softc *); |
| 133 | void agr_unlock(struct agr_softc *); |
| 134 | |
| 135 | int agrport_ioctl(struct agr_port *, u_long, void *); |
| 136 | |
| 137 | struct agr_softc *agr_alloc_softc(void); |
| 138 | void agr_free_softc(struct agr_softc *); |
| 139 | |
| 140 | int agr_xmit_frame(struct ifnet *, struct mbuf *); /* XXX */ |
| 141 | |
| 142 | #define AGR_ROUNDROBIN(sc) (((sc)->sc_if.if_flags & IFF_LINK0) != 0) |
| 143 | #define AGR_STATIC(sc) (((sc)->sc_if.if_flags & IFF_LINK1) != 0) |
| 144 | |
| 145 | void agrtimer_init(struct agr_softc *); |
| 146 | void agrtimer_destroy(struct agr_softc *); |
| 147 | void agrtimer_start(struct agr_softc *); |
| 148 | void agrtimer_stop(struct agr_softc *); |
| 149 | |
| 150 | void agrport_monitor(struct agr_port *); |
| 151 | |
| 152 | #endif /* !_NET_AGR_IF_AGRVAR_IMPL_H_ */ |
| 153 | |