The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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

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    1 /*      $OpenBSD: netisr.h,v 1.60 2022/07/14 10:52:21 mvs Exp $ */
    2 /*      $NetBSD: netisr.h,v 1.12 1995/08/12 23:59:24 mycroft Exp $      */
    3 
    4 /*
    5  * Copyright (c) 1980, 1986, 1989, 1993
    6  *      The Regents of the University of California.  All rights reserved.
    7  *
    8  * Redistribution and use in source and binary forms, with or without
    9  * modification, are permitted provided that the following conditions
   10  * are met:
   11  * 1. Redistributions of source code must retain the above copyright
   12  *    notice, this list of conditions and the following disclaimer.
   13  * 2. Redistributions in binary form must reproduce the above copyright
   14  *    notice, this list of conditions and the following disclaimer in the
   15  *    documentation and/or other materials provided with the distribution.
   16  * 3. Neither the name of the University nor the names of its contributors
   17  *    may be used to endorse or promote products derived from this software
   18  *    without specific prior written permission.
   19  *
   20  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   30  * SUCH DAMAGE.
   31  *
   32  *      @(#)netisr.h    8.1 (Berkeley) 6/10/93
   33  */
   34 
   35 #ifndef _NET_NETISR_H_
   36 #define _NET_NETISR_H_
   37 
   38 /*
   39  * Each ``pup-level-1'' input queue has a bit in a ``netisr'' status
   40  * word which is used to de-multiplex a single software
   41  * interrupt used for scheduling the network code to calls
   42  * on the lowest level routine of each protocol.
   43  */
   44 #define NETISR_IP       2               /* same as AF_INET */
   45 #define NETISR_PFSYNC   5               /* for pfsync "immediate" tx */
   46 #define NETISR_ARP      18              /* same as AF_LINK */
   47 #define NETISR_IPV6     24              /* same as AF_INET6 */
   48 #define NETISR_PIPEX    27              /* for pipex processing */
   49 #define NETISR_PPP      28              /* for PPP processing */
   50 #define NETISR_BRIDGE   29              /* for bridge processing */
   51 #define NETISR_PPPOE    30              /* for pppoe processing */
   52 
   53 #ifndef _LOCORE
   54 #ifdef _KERNEL
   55 
   56 #include <sys/task.h>
   57 #include <sys/atomic.h>
   58 
   59 extern int      netisr;                 /* scheduling bits for network */
   60 extern struct task if_input_task_locked;
   61 
   62 void    arpintr(void);
   63 void    ipintr(void);
   64 void    ip6intr(void);
   65 void    pppintr(void);
   66 void    bridgeintr(void);
   67 void    pfsyncintr(void);
   68 void    pipexintr(void);
   69 void    pppoeintr(void);
   70 
   71 #define schednetisr(anisr)                                              \
   72 do {                                                                    \
   73         atomic_setbits_int(&netisr, (1 << (anisr)));                    \
   74         task_add(net_tq(0), &if_input_task_locked);                     \
   75 } while (/* CONSTCOND */0)
   76 
   77 #endif /* _KERNEL */
   78 #endif /*_LOCORE */
   79 
   80 #endif /* _NET_NETISR_H_ */

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