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Annotation of sys/net/netisr.h, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: netisr.h,v 1.27 2007/06/06 10:04:36 henning 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:  * The networking code runs off software interrupts.
        !            39:  *
        !            40:  * You can switch into the network by doing splsoftnet() and return by splx().
        !            41:  * The software interrupt level for the network is higher than the software
        !            42:  * level for the clock (so you can enter the network in routines called
        !            43:  * at timeout time).
        !            44:  *
        !            45:  * The routine to request a network software interrupt, setsoftnet(),
        !            46:  * is defined in the machine-specific include files.
        !            47:  */
        !            48:
        !            49: /*
        !            50:  * Each ``pup-level-1'' input queue has a bit in a ``netisr'' status
        !            51:  * word which is used to de-multiplex a single software
        !            52:  * interrupt used for scheduling the network code to calls
        !            53:  * on the lowest level routine of each protocol.
        !            54:  */
        !            55: #define        NETISR_RND      1
        !            56: #define        NETISR_IP       2               /* same as AF_INET */
        !            57: #define        NETISR_ATALK    16              /* same as AF_APPLETALK */
        !            58: #define        NETISR_ARP      18              /* same as AF_LINK */
        !            59: #define        NETISR_IPV6     24              /* same as AF_INET6 */
        !            60: #define        NETISR_ISDN     26              /* same as AF_E164 */
        !            61: #define        NETISR_NATM     27              /* same as AF_ATM */
        !            62: #define        NETISR_PPP      28              /* for PPP processing */
        !            63: #define        NETISR_BRIDGE   29              /* for bridge processing */
        !            64: #define        NETISR_PPPOE    30              /* for pppoe processing */
        !            65: #define        NETISR_BT       31              /* same as AF_BLUETOOTH */
        !            66:
        !            67: #ifndef _LOCORE
        !            68: #ifdef _KERNEL
        !            69: extern int     netisr;                 /* scheduling bits for network */
        !            70:
        !            71: void   netrndintr(void);
        !            72: void   arpintr(void);
        !            73: void   ipintr(void);
        !            74: void   ip6intr(void);
        !            75: void   atintr(void);
        !            76: void   clnlintr(void);
        !            77: void   natmintr(void);
        !            78: void   pppintr(void);
        !            79: void   bridgeintr(void);
        !            80: void   pppoeintr(void);
        !            81: void   btintr(void);
        !            82:
        !            83: #include <machine/atomic.h>
        !            84: #include <dev/rndvar.h>
        !            85: #define        schednetisr(anisr)                                              \
        !            86: do {                                                                   \
        !            87:        atomic_setbits_int(&netisr, (1 << (anisr)) | NETISR_RND);       \
        !            88:        setsoftnet();                                                   \
        !            89: } while (0)
        !            90: #endif
        !            91: #endif
        !            92:
        !            93: #endif /* _NET_NETISR_H_ */