1993-03-21 12:45:37 +03:00
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/*
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* Copyright (c) 1980, 1986, 1989 Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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1993-05-20 07:05:46 +04:00
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* from: @(#)netisr.h 7.8 (Berkeley) 5/7/91
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* $Id: netisr.h,v 1.3 1993/05/20 03:06:05 cgd Exp $
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1993-03-21 12:45:37 +03:00
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*/
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1993-04-19 07:45:34 +04:00
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#ifndef _NET_NETISR_H_
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#define _NET_NETISR_H_
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1993-03-21 12:45:37 +03:00
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/*
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* The networking code runs off software interrupts.
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*
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* You can switch into the network by doing splnet() and return by splx().
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* The software interrupt level for the network is higher than the software
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* level for the clock (so you can enter the network in routines called
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* at timeout time).
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*/
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#if defined(vax) || defined(tahoe)
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#define setsoftnet() mtpr(SIRR, 12)
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#endif
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/*
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* Each ``pup-level-1'' input queue has a bit in a ``netisr'' status
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* word which is used to de-multiplex a single software
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* interrupt used for scheduling the network code to calls
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* on the lowest level routine of each protocol.
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*/
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#define NETISR_RAW 0 /* same as AF_UNSPEC */
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#define NETISR_IP 2 /* same as AF_INET */
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#define NETISR_IMP 3 /* same as AF_IMPLINK */
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#define NETISR_NS 6 /* same as AF_NS */
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#define NETISR_ISO 7 /* same as AF_ISO */
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#define NETISR_CCITT 10 /* same as AF_CCITT */
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#define schednetisr(anisr) { netisr |= 1<<(anisr); setsoftnet(); }
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#ifdef i386
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/* XXX Temporary -- soon to vanish - wfj */
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#define NETISR_SCLK 11 /* softclock */
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#define NETISR_AST 12 /* ast -- resched */
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#undef schednetisr
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#define schednetisr(anisr) {\
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if(netisr == 0) { \
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softem++; \
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} \
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netisr |= 1<<(anisr); \
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}
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#ifndef LOCORE
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#ifdef KERNEL
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int softem;
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#endif
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#endif
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#endif /* i386 */
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#ifndef LOCORE
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#ifdef KERNEL
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int netisr; /* scheduling bits for network */
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#endif
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#endif
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1993-04-19 07:45:34 +04:00
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#endif /* !_NET_NETISR_H_ */
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