Watt-32 tcp/ip  2.2 dev-rel.10
netisr.h
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1 
5 /* $NetBSD: netisr.h,v 1.15 1997/04/02 21:23:29 christos Exp $ */
6 
7 /*
8  * Copyright (c) 1980, 1986, 1989, 1993
9  * The Regents of the University of California. All rights reserved.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  * 1. Redistributions of source code must retain the above copyright
15  * notice, this list of conditions and the following disclaimer.
16  * 2. Redistributions in binary form must reproduce the above copyright
17  * notice, this list of conditions and the following disclaimer in the
18  * documentation and/or other materials provided with the distribution.
19  * 3. All advertising materials mentioning features or use of this software
20  * must display the following acknowledgement:
21  * This product includes software developed by the University of
22  * California, Berkeley and its contributors.
23  * 4. Neither the name of the University nor the names of its contributors
24  * may be used to endorse or promote products derived from this software
25  * without specific prior written permission.
26  *
27  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
28  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30  * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
31  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
35  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
36  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37  * SUCH DAMAGE.
38  *
39  * @(#)netisr.h 8.1 (Berkeley) 6/10/93
40  */
41 
42 #ifndef __NET_NETISR_H
43 #define __NET_NETISR_H
44 
45 /*
46  * The networking code runs off software interrupts.
47  *
48  * You can switch into the network by doing splsoftnet() and return by splx().
49  * The software interrupt level for the network is higher than the software
50  * level for the clock (so you can enter the network in routines called
51  * at timeout time).
52  *
53  * The routine to request a network software interrupt, setsoftnet(),
54  * is defined in the machine-specific include files.
55  */
56 
57 /*
58  * Each ``pup-level-1'' input queue has a bit in a ``netisr'' status
59  * word which is used to de-multiplex a single software
60  * interrupt used for scheduling the network code to calls
61  * on the lowest level routine of each protocol.
62  */
63 #define NETISR_IP 2 /* same as AF_INET */
64 #define NETISR_IMP 3 /* same as AF_IMPLINK */
65 #define NETISR_NS 6 /* same as AF_NS */
66 #define NETISR_ISO 7 /* same as AF_ISO */
67 #define NETISR_CCITT 10 /* same as AF_CCITT */
68 #define NETISR_ATALK 16 /* same as AF_APPLETALK */
69 #define NETISR_ARP 18 /* same as AF_LINK */
70 #define NETISR_ISDN 26 /* same as AF_E164 */
71 #define NETISR_NATM 27 /* same as AF_NATM */
72 #define NETISR_PPP 28 /* for PPP processing */
73 
74 #define schednetisr(anisr) { netisr |= 1<<(anisr); setsoftnet(); }
75 
76 extern int netisr; /* scheduling bits for network */
77 
78 #endif