FreeBSD/Linux Kernel Cross Reference
sys/net/netisr.h

     /* $NetBSD: netisr.h,v 1.35 2006/09/07 02:40:33 dogcow Exp $ */
     
     /*
      * 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. 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
     */
    
    #ifndef _NET_NETISR_H_
    #define _NET_NETISR_H_          /* checked by netisr_dispatch.h */
    
    /*
     * The networking code runs off software interrupts.
     *
     * You can switch into the network by doing splsoftnet() 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).
     *
     * The routine to request a network software interrupt, setsoftnet(),
     * is defined in the machine-specific include files.
     */
    
    #if defined(_KERNEL)
    
    #if !defined(_LKM)
    #include "opt_inet.h"
    #include "opt_atalk.h"
    #include "opt_iso.h"
    #include "opt_natm.h"
    #include "arp.h"
    #ifndef __HAVE_GENERIC_SOFT_INTERRUPTS
    #include "sl.h"
    #include "strip.h"
    #include "ppp.h"
    #endif
    #endif /* !defined(_LKM) */
    
    #if !defined(_LOCORE)
    
    /* XXX struct sockaddr defn for for if.h, if_arp.h */
    #include <sys/socket.h>
    
    /*
     * XXX IFNAMSIZE for if_ppp.h, natm.h; struct ifnet decl for in6.h, in.h;
     * XXX struct mbuf decl for in6.h, in.h, route.h (via in_var.h).
     */
    #include <net/if.h>
    
    #ifdef INET
    #include <netinet/in.h>
    #include <netinet/ip_var.h>
    #if NARP > 0
    #include <netinet/if_inarp.h>
    #endif
    #endif
    #ifdef INET6
    # ifndef INET
    #  include <netinet/in.h>
    # endif
    #include <netinet/ip6.h>
    #include <netinet6/ip6_var.h>
    #endif
    #ifdef ISO
    #include <netiso/iso.h>
    #include <netiso/clnp.h>
    #endif
    #ifdef NATM
    #include <netnatm/natm.h>
    #endif
    #ifdef NETATALK
    #include <netatalk/at_extern.h>
    #endif
    
   #ifndef __HAVE_GENERIC_SOFT_INTERRUPTS          /* XXX XXX XXX */
   #if NSL > 0
   extern void slnetisr(void);
   #endif
   #if NSTRIP > 0
   extern void stripnetisr(void);
   #endif
   #if NPPP > 0
   extern void pppnetisr(void);
   #endif
   #endif /* __HAVE_GENERIC_SOFT_INTERRUPTS */
   
   #endif /* !defined(_LOCORE) */
   #endif /* defined(_KERNEL) */
   
   
   /*
    * 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_IP       2               /* same as AF_INET */
   #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_ATALK    16              /* same as AF_APPLETALK */
   #define NETISR_IPX      23              /* same as AF_IPX */
   #define NETISR_IPV6     24              /* same as AF_INET6 */
   #define NETISR_ISDN     26              /* same as AF_E164 */
   #define NETISR_NATM     27              /* same as AF_NATM */
   #define NETISR_ARP      28              /* same as AF_ARP */
   #ifndef __HAVE_GENERIC_SOFT_INTERRUPTS
   #define NETISR_SLIP     29              /* for SLIP processing */
   #define NETISR_STRIP    30              /* for STRIP processing */
   #define NETISR_PPP      31              /* for PPP processing */
   #endif
   
   #if defined(_KERNEL) && !defined(_LOCORE)
   
   #ifndef schednetisr
   #define schednetisr(anisr)      { netisr |= 1<<(anisr); setsoftnet(); }
   #endif
   
   extern  int netisr;                     /* scheduling bits for network */
   
   #endif /* defined(_KERNEL) && !defined(_LOCORE) */
   
   #endif /* !_NET_NETISR_H_ */

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