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Annotation of 43BSD/sys/net/netisr.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1980, 1986 Regents of the University of California.
                      3:  * All rights reserved.  The Berkeley software License Agreement
                      4:  * specifies the terms and conditions for redistribution.
                      5:  *
                      6:  *     @(#)netisr.h    7.1 (Berkeley) 6/4/86
                      7:  */
                      8: 
                      9: /*
                     10:  * The networking code runs off software interrupts.
                     11:  *
                     12:  * You can switch into the network by doing splnet() and return by splx().
                     13:  * The software interrupt level for the network is higher than the software
                     14:  * level for the clock (so you can enter the network in routines called
                     15:  * at timeout time).
                     16:  */
                     17: #ifdef vax
                     18: #define        setsoftnet()    mtpr(SIRR, 12)
                     19: #endif
                     20: 
                     21: /*
                     22:  * Each ``pup-level-1'' input queue has a bit in a ``netisr'' status
                     23:  * word which is used to de-multiplex a single software
                     24:  * interrupt used for scheduling the network code to calls
                     25:  * on the lowest level routine of each protocol.
                     26:  */
                     27: #define        NETISR_RAW      0               /* same as AF_UNSPEC */
                     28: #define        NETISR_IP       2               /* same as AF_INET */
                     29: #define        NETISR_IMP      3               /* same as AF_IMPLINK */
                     30: #define        NETISR_NS       6               /* same as AF_NS */
                     31: 
                     32: #define        schednetisr(anisr)      { netisr |= 1<<(anisr); setsoftnet(); }
                     33: 
                     34: #ifndef LOCORE
                     35: #ifdef KERNEL
                     36: int    netisr;                         /* scheduling bits for network */
                     37: #endif
                     38: #endif

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