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/*

 * 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. All advertising materials mentioning features or use of this software

 *    must display the following acknowledgement:

 *      This product includes software developed by the University of

 *      California, Berkeley and its contributors.

 * 4. 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

 * $FreeBSD: src/sys/net/netisr.h,v 1.26 2002/03/19 21:54:18 alfred Exp $

 */

#ifndef _NET_NETISR_H_

#define _NET_NETISR_H_

/*

 * The networking code runs off software interrupts.

 *

 * You can switch into the network by doing splnet() 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).

 */

/*

 * 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_POLL     0                /* polling callback, must be first */

#define NETISR_IP       2               /* same as AF_INET */

#define NETISR_NS       6               /* same as AF_NS */

#define NETISR_ATALK    16              /* same as AF_APPLETALK */

#define NETISR_ARP      18              /* same as AF_LINK */

#define NETISR_IPX      23              /* same as AF_IPX */

#define NETISR_USB      25              /* USB soft interrupt */

#define NETISR_PPP      27              /* PPP soft interrupt */

#define NETISR_IPV6     28              /* same as AF_INET6 */

#define NETISR_NATM     29              /* same as AF_NATM */

#define NETISR_ATM      30              /* same as AF_ATM */

#define NETISR_NETGRAPH 31              /* same as AF_NETGRAPH */

#ifndef LOCORE

#ifdef _KERNEL

void legacy_setsoftnet(void);

extern volatile unsigned int    netisr; /* scheduling bits for network */

extern  void    (*netisrs[32])(void);

#define schednetisr(anisr) do {                                         \

        atomic_set_rel_int(&netisr, 1 << (anisr));                      \

        legacy_setsoftnet();                                            \

} while (0)

typedef void netisr_t(void);

int register_netisr(int, netisr_t *);

int unregister_netisr(int);

#endif

#endif

#endif