| if.c (206637) | if.c (207369) |
|---|---|
| 1/*- 2 * Copyright (c) 1980, 1986, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 13 unchanged lines hidden (view full) --- 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)if.c 8.5 (Berkeley) 1/9/95 | 1/*- 2 * Copyright (c) 1980, 1986, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 13 unchanged lines hidden (view full) --- 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)if.c 8.5 (Berkeley) 1/9/95 |
| 30 * $FreeBSD: head/sys/net/if.c 206637 2010-04-14 22:02:19Z delphij $ | 30 * $FreeBSD: head/sys/net/if.c 207369 2010-04-29 11:52:42Z bz $ |
| 31 */ 32 33#include "opt_compat.h" 34#include "opt_inet6.h" 35#include "opt_inet.h" 36#include "opt_carp.h" 37#include "opt_ddb.h" 38 --- 119 unchanged lines hidden (view full) --- 158#ifdef INET6 159/* 160 * XXX: declare here to avoid to include many inet6 related files.. 161 * should be more generalized? 162 */ 163extern void nd6_setmtu(struct ifnet *); 164#endif 165 | 31 */ 32 33#include "opt_compat.h" 34#include "opt_inet6.h" 35#include "opt_inet.h" 36#include "opt_carp.h" 37#include "opt_ddb.h" 38 --- 119 unchanged lines hidden (view full) --- 158#ifdef INET6 159/* 160 * XXX: declare here to avoid to include many inet6 related files.. 161 * should be more generalized? 162 */ 163extern void nd6_setmtu(struct ifnet *); 164#endif 165 |
| 166VNET_DEFINE(int, if_index); 167int ifqmaxlen = IFQ_MAXLEN; |
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| 166VNET_DEFINE(struct ifnethead, ifnet); /* depend on static init XXX */ 167VNET_DEFINE(struct ifgrouphead, ifg_head); | 168VNET_DEFINE(struct ifnethead, ifnet); /* depend on static init XXX */ 169VNET_DEFINE(struct ifgrouphead, ifg_head); |
| 168VNET_DEFINE(int, if_index); | 170 |
| 169static VNET_DEFINE(int, if_indexlim) = 8; 170 171/* Table of ifnet by index. */ 172static VNET_DEFINE(struct ifindex_entry *, ifindex_table); 173 174#define V_if_indexlim VNET(if_indexlim) 175#define V_ifindex_table VNET(ifindex_table) 176 | 171static VNET_DEFINE(int, if_indexlim) = 8; 172 173/* Table of ifnet by index. */ 174static VNET_DEFINE(struct ifindex_entry *, ifindex_table); 175 176#define V_if_indexlim VNET(if_indexlim) 177#define V_ifindex_table VNET(ifindex_table) 178 |
| 177int ifqmaxlen = IFQ_MAXLEN; 178 | |
| 179/* 180 * The global network interface list (V_ifnet) and related state (such as 181 * if_index, if_indexlim, and ifindex_table) are protected by an sxlock and 182 * an rwlock. Either may be acquired shared to stablize the list, but both 183 * must be acquired writable to modify the list. This model allows us to 184 * both stablize the interface list during interrupt thread processing, but 185 * also to stablize it over long-running ioctls, without introducing priority 186 * inversions and deadlocks. --- 3233 unchanged lines hidden --- | 179/* 180 * The global network interface list (V_ifnet) and related state (such as 181 * if_index, if_indexlim, and ifindex_table) are protected by an sxlock and 182 * an rwlock. Either may be acquired shared to stablize the list, but both 183 * must be acquired writable to modify the list. This model allows us to 184 * both stablize the interface list during interrupt thread processing, but 185 * also to stablize it over long-running ioctls, without introducing priority 186 * inversions and deadlocks. --- 3233 unchanged lines hidden --- |