Return to netisr.h CVS log

Up to [CSRG BSD Unix] / 43BSDReno / sys / net

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

1.1       root        1: /*
                      2:  * Copyright (c) 1980, 1986, 1989 Regents of the University of California.
                      3:  * All rights reserved.
                      4:  *
                      5:  * Redistribution is only permitted until one year after the first shipment
                      6:  * of 4.4BSD by the Regents.  Otherwise, redistribution and use in source and
                      7:  * binary forms are permitted provided that: (1) source distributions retain
                      8:  * this entire copyright notice and comment, and (2) distributions including
                      9:  * binaries display the following acknowledgement:  This product includes
                     10:  * software developed by the University of California, Berkeley and its
                     11:  * contributors'' in the documentation or other materials provided with the
                     12:  * distribution and in all advertising materials mentioning features or use
                     13:  * of this software.  Neither the name of the University nor the names of
                     14:  * its contributors may be used to endorse or promote products derived from
                     15:  * this software without specific prior written permission.
                     16:  * THIS SOFTWARE IS PROVIDED AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
                     17:  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
                     18:  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
                     19:  *
                     20:  *     @(#)netisr.h    7.6 (Berkeley) 6/28/90
                     21:  */
                     22: 
                     23: /*
                     24:  * The networking code runs off software interrupts.
                     25:  *
                     26:  * You can switch into the network by doing splnet() and return by splx().
                     27:  * The software interrupt level for the network is higher than the software
                     28:  * level for the clock (so you can enter the network in routines called
                     29:  * at timeout time).
                     30:  */
                     31: #if defined(vax) || defined(tahoe)
                     32: #define        setsoftnet()    mtpr(SIRR, 12)
                     33: #endif
                     34: 
                     35: /*
                     36:  * Each ``pup-level-1'' input queue has a bit in a ``netisr'' status
                     37:  * word which is used to de-multiplex a single software
                     38:  * interrupt used for scheduling the network code to calls
                     39:  * on the lowest level routine of each protocol.
                     40:  */
                     41: #define        NETISR_RAW      0               /* same as AF_UNSPEC */
                     42: #define        NETISR_IP       2               /* same as AF_INET */
                     43: #define        NETISR_IMP      3               /* same as AF_IMPLINK */
                     44: #define        NETISR_NS       6               /* same as AF_NS */
                     45: #define        NETISR_ISO      7               /* same as AF_ISO */
                     46: 
                     47: #define        schednetisr(anisr)      { netisr |= 1<<(anisr); setsoftnet(); }
                     48: 
                     49: #ifndef LOCORE
                     50: #ifdef KERNEL
                     51: int    netisr;                         /* scheduling bits for network */
                     52: #endif
                     53: #endif

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.