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/*
* Copyright (c) 1980, 1986, 1989, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)netisr.h 8.1 (Berkeley) 6/10/93
*/
/*
* 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 NETISR_ISO 7 /* same as AF_ISO */
#define NETISR_CCITT 10 /* same as AF_CCITT */
#define NETISR_ARP 18 /* same as AF_LINK */
#define schednetisr(anisr) { netisr |= 1<<(anisr); setsoftnet(); }
#ifdef i386
/* XXX Temporary -- soon to vanish - wfj */
#define NETISR_SCLK 11 /* softclock */
#define NETISR_AST 12 /* ast -- resched */
#undef schednetisr
#define schednetisr(anisr) {\
if(netisr == 0) { \
softem++; \
} \
netisr |= 1<<(anisr); \
}
#ifndef LOCORE
#ifdef KERNEL
int softem;
#endif
#endif
#endif /* i386 */
#ifndef LOCORE
#ifdef KERNEL
int netisr; /* scheduling bits for network */
#endif
#endif
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