1 /* $NetBSD: if_agrvar_impl.h,v 1.2 2005/12/10 23:21:39 elad 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_INT_H_ 30 #define _NET_AGR_IF_AGRVAR_INT_H_ 31 32 /* 33 * implementaion details for agr(4) driver. (contrast to if_agrvar.h) 34 */ 35 36 struct agr_port; 37 struct agr_softc; 38 39 struct agr_port { 40 struct ifnet *port_agrifp; 41 struct ifnet *port_ifp; 42 TAILQ_ENTRY(agr_port) port_q; 43 int (*port_ioctl)(struct ifnet *, u_long, caddr_t); 44 void *port_iftprivate; 45 int port_flags; 46 u_int port_media; 47 char port_origlladdr[0]; 48 }; 49 #define AGRPORT_COLLECTING 0x00000001 50 #define AGRPORT_DISTRIBUTING 0x00000002 51 #define AGRPORT_PROMISC 0x00000004 52 #define AGRPORT_LADDRCHANGED 0x00000008 53 #define AGRPORT_ATTACHED 0x00000010 54 #define AGRPORT_LARVAL 0x00000020 55 #define AGRPORT_DETACHING 0x00000040 56 57 struct agr_iftype_ops { 58 59 void (*iftop_tick)(struct agr_softc *); 60 void (*iftop_porttick)(struct agr_softc *, struct agr_port *); 61 void (*iftop_portstate)(struct agr_port *); 62 63 /* 64 * iftop_ctor: 65 * - inherit setting (eg. L1 address) from the first port. 66 * - initialize if_output, if_input, if_dlt, etc. 67 * (in the case of IFT_ETHER, ether_ifattach. 68 */ 69 70 int (*iftop_ctor)(struct agr_softc *, struct ifnet *); 71 72 void (*iftop_dtor)(struct agr_softc *); 73 74 /* 75 * iftop_portinit: 76 * propagate setting to a newly added port. 77 */ 78 79 int (*iftop_portinit)(struct agr_softc *, struct agr_port *); 80 81 /* 82 * iftop_portfini: 83 * restore setting of a port being removed. 84 */ 85 int (*iftop_portfini)(struct agr_softc *, struct agr_port *); 86 87 struct agr_port *(*iftop_select_tx_port)(struct agr_softc *, 88 struct mbuf *); 89 uint32_t (*iftop_hashmbuf)(struct agr_softc *, struct mbuf *); 90 91 int (*iftop_configmulti_port)(struct agr_softc *, struct agr_port *, 92 boolean_t); 93 int (*iftop_configmulti_ifreq)(struct agr_softc *, struct ifreq *, 94 boolean_t); 95 }; 96 97 struct agr_ifreq { 98 char ifr_name[IFNAMSIZ]; 99 struct sockaddr_storage ifr_ss; 100 }; 101 102 struct agr_softc { 103 struct lock sc_ioctl_lock; 104 struct simplelock sc_lock; 105 struct callout sc_callout; 106 int sc_nports; 107 TAILQ_HEAD(, agr_port) sc_ports; 108 const struct agr_iftype_ops *sc_iftop; 109 uint32_t sc_rr_counter; /* distributor algorithm specific */ 110 void *sc_iftprivate; 111 struct ifnet sc_if; /* should be the last. see agr_alloc_softc(). */ 112 }; 113 114 #define AGR_SC_FROM_PORT(port) \ 115 ((struct agr_softc *)(port)->port_agrifp->if_softc) 116 117 #define AGR_LOCK(sc) agr_lock(sc) 118 #define AGR_UNLOCK(sc, s) agr_unlock((sc), (s)) 119 #define AGR_ASSERT_LOCKED(sc) LOCK_ASSERT(simple_lock_held(&(sc)->sc_lock)) 120 121 int agr_lock(struct agr_softc *); 122 void agr_unlock(struct agr_softc *, int); 123 124 void agr_ioctl_lock(struct agr_softc *); 125 void agr_ioctl_unlock(struct agr_softc *); 126 127 int agrport_ioctl(struct agr_port *, u_long, caddr_t); 128 129 struct agr_softc *agr_alloc_softc(void); 130 void agr_free_softc(struct agr_softc *); 131 132 int agr_xmit_frame(struct ifnet *, struct mbuf *); /* XXX */ 133 134 #define AGR_ROUNDROBIN(sc) (((sc)->sc_if.if_flags & IFF_LINK0) != 0) 135 136 void agrtimer_init(struct agr_softc *); 137 void agrtimer_start(struct agr_softc *); 138 void agrtimer_stop(struct agr_softc *); 139 140 void agrport_monitor(struct agr_port *); 141 142 #endif /* !_NET_AGR_IF_AGRVAR_INT_H_ */ 143