xref: /openbsd-src/sys/net/netisr.h (revision db3296cf5c1dd9058ceecc3a29fe4aaa0bd26000)
1 /*	$OpenBSD: netisr.h,v 1.19 2003/06/02 23:28:12 millert Exp $	*/
2 /*	$NetBSD: netisr.h,v 1.12 1995/08/12 23:59:24 mycroft Exp $	*/
3 
4 /*
5  * Copyright (c) 1980, 1986, 1989, 1993
6  *	The Regents of the University of California.  All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  * 3. Neither the name of the University nor the names of its contributors
17  *    may be used to endorse or promote products derived from this software
18  *    without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30  * SUCH DAMAGE.
31  *
32  *	@(#)netisr.h	8.1 (Berkeley) 6/10/93
33  */
34 
35 #ifndef _NET_NETISR_H_
36 #define _NET_NETISR_H_
37 /*
38  * The networking code runs off software interrupts.
39  *
40  * You can switch into the network by doing splsoftnet() and return by splx().
41  * The software interrupt level for the network is higher than the software
42  * level for the clock (so you can enter the network in routines called
43  * at timeout time).
44  *
45  * The routine to request a network software interrupt, setsoftnet(),
46  * is defined in the machine-specific include files.
47  */
48 
49 /*
50  * Each ``pup-level-1'' input queue has a bit in a ``netisr'' status
51  * word which is used to de-multiplex a single software
52  * interrupt used for scheduling the network code to calls
53  * on the lowest level routine of each protocol.
54  */
55 #define	NETISR_IP	2		/* same as AF_INET */
56 #define	NETISR_IMP	3		/* same as AF_IMPLINK */
57 #define	NETISR_NS	6		/* same as AF_NS */
58 #define	NETISR_ISO	7		/* same as AF_ISO */
59 #define	NETISR_CCITT	10		/* same as AF_CCITT */
60 #define	NETISR_ATALK	16		/* same as AF_APPLETALK */
61 #define	NETISR_ARP	18		/* same as AF_LINK */
62 #define	NETISR_IPX	23		/* same as AF_IPX */
63 #define	NETISR_IPV6	24		/* same as AF_INET6 */
64 #define	NETISR_ISDN	26		/* same as AF_E164 */
65 #define	NETISR_NATM	27		/* same as AF_ATM */
66 #define	NETISR_PPP	28		/* for PPP processing */
67 #define	NETISR_BRIDGE	29		/* for bridge processing */
68 
69 #ifndef _LOCORE
70 #ifdef _KERNEL
71 extern int	netisr;			/* scheduling bits for network */
72 
73 void	arpintr(void);
74 void	ipintr(void);
75 void	ip6intr(void);
76 void	atintr(void);
77 void	nsintr(void);
78 void	ipxintr(void);
79 void	clnlintr(void);
80 void	natmintr(void);
81 void	pppintr(void);
82 void	ccittintr(void);
83 void	bridgeintr(void);
84 
85 #include <dev/rndvar.h>
86 #define	schednetisr(anisr)	\
87 	{ netisr |= 1<<(anisr); add_net_randomness(anisr); setsoftnet(); }
88 #endif
89 #endif
90 
91 #endif /* _NET_NETISR_H_ */
92