1 /* $NetBSD: netisr.h,v 1.12 1995/08/12 23:59:24 mycroft Exp $ */ 2 3 /* 4 * Copyright (c) 1980, 1986, 1989, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * @(#)netisr.h 8.1 (Berkeley) 6/10/93 36 */ 37 38 /* 39 * The networking code runs off software interrupts. 40 * 41 * You can switch into the network by doing splsoftnet() and return by splx(). 42 * The software interrupt level for the network is higher than the software 43 * level for the clock (so you can enter the network in routines called 44 * at timeout time). 45 * 46 * The routine to request a network software interrupt, setsoftnet(), 47 * is defined in the machine-specific include files. 48 */ 49 50 /* 51 * Each ``pup-level-1'' input queue has a bit in a ``netisr'' status 52 * word which is used to de-multiplex a single software 53 * interrupt used for scheduling the network code to calls 54 * on the lowest level routine of each protocol. 55 */ 56 #define NETISR_IP 2 /* same as AF_INET */ 57 #define NETISR_IMP 3 /* same as AF_IMPLINK */ 58 #define NETISR_NS 6 /* same as AF_NS */ 59 #define NETISR_ISO 7 /* same as AF_ISO */ 60 #define NETISR_CCITT 10 /* same as AF_CCITT */ 61 #define NETISR_ARP 18 /* same as AF_LINK */ 62 #define NETISR_PPP 26 /* for PPP processing */ 63 64 #define schednetisr(anisr) { netisr |= 1<<(anisr); setsoftnet(); } 65 66 #ifndef LOCORE 67 #ifdef _KERNEL 68 int netisr; /* scheduling bits for network */ 69 #endif 70 #endif 71