projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| a9f97ede BJ |
1 | /* netisr.h 4.1 82/10/09 */ |
| 2 | ||
| 3 | /* | |
| 4 | * The networking code runs off software interrupts. | |
| 5 | * | |
| 6 | * You can switch into the network by doing splnet() and return by splx(). | |
| 7 | * The software interrupt level for the network is higher than the software | |
| 8 | * level for the clock (so you can enter the network in routines called | |
| 9 | * at timeout time). | |
| 10 | */ | |
| 11 | #define setsoftnet() mtpr(SIRR, 12) | |
| 12 | ||
| 13 | /* | |
| 14 | * Each ``pup-level-1'' input queue has a bit in a ``netisr'' status | |
| 15 | * word which is used to de-multiplex a single software | |
| 16 | * interrupt used for scheduling the network code to calls | |
| 17 | * on the lowest level routine of each protocol. | |
| 18 | */ | |
| 19 | #define NETISR_RAW 0 /* same as AF_UNSPEC */ | |
| 20 | #define NETISR_IP 2 /* same as AF_INET */ | |
| 21 | #define NETISR_NS 6 /* same as AF_NS */ | |
| 22 | ||
| 23 | #define schednetisr(anisr) { netisr |= 1<<(anisr); setsoftnet(); } | |
| 24 | ||
| 25 | #ifndef LOCORE | |
| 26 | #ifdef KERNEL | |
| 27 | int netisr; /* scheduling bits for network */ | |
| 28 | #endif | |
| 29 | #endif |