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