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cb1c44c2 | 1 | /* |
1810611d | 2 | * Copyright (c) 1980, 1986 Regents of the University of California. |
5b519e94 | 3 | * All rights reserved. |
cb1c44c2 | 4 | * |
5b519e94 | 5 | * Redistribution and use in source and binary forms are permitted |
50c7758a KB |
6 | * provided that the above copyright notice and this paragraph are |
7 | * duplicated in all such forms and that any documentation, | |
8 | * advertising materials, and other materials related to such | |
9 | * distribution and use acknowledge that the software was developed | |
10 | * by the University of California, Berkeley. The name of the | |
11 | * University may not be used to endorse or promote products derived | |
12 | * from this software without specific prior written permission. | |
13 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR | |
14 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | |
15 | * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
5b519e94 | 16 | * |
50c7758a | 17 | * @(#)netisr.h 7.4 (Berkeley) %G% |
cb1c44c2 | 18 | */ |
a9f97ede BJ |
19 | |
20 | /* | |
21 | * The networking code runs off software interrupts. | |
22 | * | |
23 | * You can switch into the network by doing splnet() and return by splx(). | |
24 | * The software interrupt level for the network is higher than the software | |
25 | * level for the clock (so you can enter the network in routines called | |
26 | * at timeout time). | |
27 | */ | |
2e62d00d | 28 | #if defined(vax) || defined(tahoe) |
a9f97ede | 29 | #define setsoftnet() mtpr(SIRR, 12) |
ddccffcc | 30 | #endif |
a9f97ede BJ |
31 | |
32 | /* | |
33 | * Each ``pup-level-1'' input queue has a bit in a ``netisr'' status | |
34 | * word which is used to de-multiplex a single software | |
35 | * interrupt used for scheduling the network code to calls | |
36 | * on the lowest level routine of each protocol. | |
37 | */ | |
38 | #define NETISR_RAW 0 /* same as AF_UNSPEC */ | |
39 | #define NETISR_IP 2 /* same as AF_INET */ | |
e3d5e8b3 | 40 | #define NETISR_IMP 3 /* same as AF_IMPLINK */ |
a9f97ede BJ |
41 | #define NETISR_NS 6 /* same as AF_NS */ |
42 | ||
43 | #define schednetisr(anisr) { netisr |= 1<<(anisr); setsoftnet(); } | |
44 | ||
45 | #ifndef LOCORE | |
46 | #ifdef KERNEL | |
47 | int netisr; /* scheduling bits for network */ | |
48 | #endif | |
49 | #endif |