projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| cb1c44c2 | 1 | /* |
| b72a6efb | 2 | * Copyright (c) 1980, 1986, 1989 Regents of the University of California. |
| 5b519e94 | 3 | * All rights reserved. |
| cb1c44c2 | 4 | * |
| dbf0c423 | 5 | * %sccs.include.redist.c% |
| 5b519e94 | 6 | * |
| 38733e70 | 7 | * @(#)netisr.h 7.9 (Berkeley) %G% |
| cb1c44c2 | 8 | */ |
| a9f97ede BJ |
9 | |
| 10 | /* | |
| 11 | * The networking code runs off software interrupts. | |
| 12 | * | |
| 13 | * You can switch into the network by doing splnet() and return by splx(). | |
| 14 | * The software interrupt level for the network is higher than the software | |
| 15 | * level for the clock (so you can enter the network in routines called | |
| 16 | * at timeout time). | |
| 17 | */ | |
| 2e62d00d | 18 | #if defined(vax) || defined(tahoe) |
| a9f97ede | 19 | #define setsoftnet() mtpr(SIRR, 12) |
| ddccffcc | 20 | #endif |
| a9f97ede BJ |
21 | |
| 22 | /* | |
| 23 | * Each ``pup-level-1'' input queue has a bit in a ``netisr'' status | |
| 24 | * word which is used to de-multiplex a single software | |
| 25 | * interrupt used for scheduling the network code to calls | |
| 26 | * on the lowest level routine of each protocol. | |
| 27 | */ | |
| 28 | #define NETISR_RAW 0 /* same as AF_UNSPEC */ | |
| 29 | #define NETISR_IP 2 /* same as AF_INET */ | |
| e3d5e8b3 | 30 | #define NETISR_IMP 3 /* same as AF_IMPLINK */ |
| a9f97ede | 31 | #define NETISR_NS 6 /* same as AF_NS */ |
| b72a6efb | 32 | #define NETISR_ISO 7 /* same as AF_ISO */ |
| 3ded831e | 33 | #define NETISR_CCITT 10 /* same as AF_CCITT */ |
| 38733e70 | 34 | #define NETISR_ARP 18 /* same as AF_LINK */ |
| a9f97ede BJ |
35 | |
| 36 | #define schednetisr(anisr) { netisr |= 1<<(anisr); setsoftnet(); } | |
| 37 | ||
| bd104333 WN |
38 | #ifdef i386 |
| 39 | /* XXX Temporary -- soon to vanish - wfj */ | |
| 40 | #define NETISR_SCLK 11 /* softclock */ | |
| 41 | #define NETISR_AST 12 /* ast -- resched */ | |
| 42 | ||
| 43 | #undef schednetisr | |
| 44 | #define schednetisr(anisr) {\ | |
| 45 | if(netisr == 0) { \ | |
| 46 | softem++; \ | |
| 47 | } \ | |
| 48 | netisr |= 1<<(anisr); \ | |
| 49 | } | |
| 50 | #ifndef LOCORE | |
| 51 | #ifdef KERNEL | |
| 52 | int softem; | |
| 53 | #endif | |
| 54 | #endif | |
| 55 | #endif /* i386 */ | |
| 56 | ||
| a9f97ede BJ |
57 | #ifndef LOCORE |
| 58 | #ifdef KERNEL | |
| 59 | int netisr; /* scheduling bits for network */ | |
| 60 | #endif | |
| 61 | #endif |