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