netisr.h revision 22975
1240075Sdes/* 298937Sdes * Copyright (c) 1980, 1986, 1989, 1993 398937Sdes * The Regents of the University of California. All rights reserved. 498937Sdes * 598937Sdes * Redistribution and use in source and binary forms, with or without 698937Sdes * modification, are permitted provided that the following conditions 798937Sdes * are met: 898937Sdes * 1. Redistributions of source code must retain the above copyright 998937Sdes * notice, this list of conditions and the following disclaimer. 1098937Sdes * 2. Redistributions in binary form must reproduce the above copyright 1198937Sdes * notice, this list of conditions and the following disclaimer in the 1298937Sdes * documentation and/or other materials provided with the distribution. 1398937Sdes * 3. All advertising materials mentioning features or use of this software 14124208Sdes * must display the following acknowledgement: 1598937Sdes * This product includes software developed by the University of 1698937Sdes * California, Berkeley and its contributors. 1798937Sdes * 4. Neither the name of the University nor the names of its contributors 1898937Sdes * may be used to endorse or promote products derived from this software 1998937Sdes * without specific prior written permission. 2098937Sdes * 2198937Sdes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 2298937Sdes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2398937Sdes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2498937Sdes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 2598937Sdes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2698937Sdes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2798937Sdes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2898937Sdes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2998937Sdes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 3098937Sdes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31157016Sdes * SUCH DAMAGE. 32157016Sdes * 33106121Sdes * @(#)netisr.h 8.1 (Berkeley) 6/10/93 34240075Sdes * $Id$ 35128456Sdes */ 3698937Sdes 37240075Sdes#ifndef _NET_NETISR_H_ 3898937Sdes#define _NET_NETISR_H_ 3998937Sdes 4098937Sdes/* 41157016Sdes * The networking code runs off software interrupts. 42240075Sdes * 43113908Sdes * You can switch into the network by doing splnet() and return by splx(). 44157016Sdes * The software interrupt level for the network is higher than the software 4598937Sdes * level for the clock (so you can enter the network in routines called 4698937Sdes * at timeout time). 4798937Sdes */ 48240075Sdes#if defined(vax) || defined(tahoe) 4998937Sdes#define setsoftnet() mtpr(SIRR, 12) 50240075Sdes#endif 5198937Sdes 52240075Sdes/* 53240075Sdes * Each ``pup-level-1'' input queue has a bit in a ``netisr'' status 5498937Sdes * word which is used to de-multiplex a single software 55157016Sdes * interrupt used for scheduling the network code to calls 56240075Sdes * on the lowest level routine of each protocol. 5798937Sdes */ 5898937Sdes#define NETISR_RAW 0 /* same as AF_UNSPEC */ 59240075Sdes#define NETISR_IP 2 /* same as AF_INET */ 60157016Sdes#define NETISR_IMP 3 /* same as AF_IMPLINK */ 61157016Sdes#define NETISR_NS 6 /* same as AF_NS */ 6298937Sdes#define NETISR_ISO 7 /* same as AF_ISO */ 6398937Sdes#define NETISR_CCITT 10 /* same as AF_CCITT */ 6498937Sdes#define NETISR_ATALK 16 /* same as AF_APPLETALK */ 65240075Sdes#define NETISR_ARP 18 /* same as AF_LINK */ 6698937Sdes#define NETISR_IPX 23 /* same as AF_IPX */ 6798937Sdes#define NETISR_ISDN 26 /* same as AF_E164 */ 6898937Sdes#define NETISR_PPP 27 /* PPP soft interrupt */ 6998937Sdes 7098937Sdes#define schednetisr(anisr) { netisr |= 1<<(anisr); setsoftnet(); } 7198937Sdes 7298937Sdes#ifndef LOCORE 7398937Sdes#ifdef KERNEL 7498937Sdesextern volatile unsigned int netisr; /* scheduling bits for network */ 7598937Sdes 7698937Sdestypedef void netisr_t(void); 77240075Sdes 78240075Sdesstruct netisrtab { 79240075Sdes int nit_num; 80240075Sdes netisr_t *nit_isr; 81240075Sdes}; 82240075Sdes 83240075Sdes#define NETISR_SET(num, isr) \ 84240075Sdes static struct netisrtab mod_nit = { num, isr }; \ 85240075Sdes DATA_SET(netisr_set, mod_nit); 86240075Sdes 87240075Sdesint register_netisr __P((int, netisr_t *)); 88240075Sdes 89240075Sdes#endif 90240075Sdes#endif 91240075Sdes 92240075Sdes#endif 93240075Sdes