home *** CD-ROM | disk | FTP | other *** search
- /*
- * Copyright (c) 1980, 1986 Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms are permitted
- * provided that this notice is preserved and that due credit is given
- * to the University of California at Berkeley. The name of the University
- * may not be used to endorse or promote products derived from this
- * software without specific prior written permission. This software
- * is provided ``as is'' without express or implied warranty.
- *
- * @(#)netisr.h 7.3 (Berkeley) 12/30/87
- */
-
- #ifndef _NETISR
- #define _NETISR
-
- /*
- * The networking code runs off software interrupts.
- *
- * You can switch into the network by doing splnet() and return by splx().
- * The software interrupt level for the network is higher than the software
- * level for the clock (so you can enter the network in routines called
- * at timeout time).
- */
- #if defined(vax) || defined(tahoe)
- #define setsoftnet() mtpr(SIRR, 12)
- #endif
-
- /*
- * Each ``pup-level-1'' input queue has a bit in a ``netisr'' status
- * word which is used to de-multiplex a single software
- * interrupt used for scheduling the network code to calls
- * on the lowest level routine of each protocol.
- */
- #define NETISR_RAW 0 /* same as AF_UNSPEC */
- #define NETISR_IP 2 /* same as AF_INET */
- #define NETISR_IMP 3 /* same as AF_IMPLINK */
- #define NETISR_NS 6 /* same as AF_NS */
-
- #define schednetisr(anisr) { netisr |= 1<<(anisr); setsoftnet(); }
-
- #ifndef LOCORE
- #ifdef KERNEL
- int netisr; /* scheduling bits for network */
- #endif
- #endif
-
- #endif _NETISR
-