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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.
* 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
* $FreeBSD$
*/
#ifndef _NET_NETISR_H_
#define _NET_NETISR_H_
/*
* The netisr (network interrupt service routine) provides a deferred
* execution evironment in which (generally inbound) network processing can
* take place. Protocols register handlers and, optionally, packet queues;
* when packets are delivered to the queue, the protocol handler will be
* executed directly, or via deferred dispatch depending on the
* circumstances.
*
* Historically, this was implemented by the BSD software ISR facility; it is
* now implemented via a software ithread (SWI).
*/
#define NETISR_POLL 0 /* polling callback, must be first */
#define NETISR_IP 2 /* same as AF_INET */
#define NETISR_ROUTE 14 /* routing socket */
#define NETISR_AARP 15 /* Appletalk ARP */
#define NETISR_ATALK2 16 /* Appletalk phase 2 */
#define NETISR_ATALK1 17 /* Appletalk phase 1 */
#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 26 /* PPP soft interrupt */
#define NETISR_IPV6 27
#define NETISR_NATM 28
#define NETISR_ATM 29
#define NETISR_NETGRAPH 30
#define NETISR_POLLMORE 31 /* polling callback, must be last */
#ifndef LOCORE
#ifdef _KERNEL
void legacy_setsoftnet(void);
extern volatile unsigned int netisr; /* scheduling bits for network */
#define schednetisr(anisr) do { \
atomic_set_rel_int(&netisr, 1 << (anisr)); \
legacy_setsoftnet(); \
} while (0)
/* used to atomically schedule multiple netisrs */
#define schednetisrbits(isrbits) do { \
atomic_set_rel_int(&netisr, isrbits); \
legacy_setsoftnet(); \
} while (0)
struct ifqueue;
struct mbuf;
typedef void netisr_t (struct mbuf *);
void netisr_dispatch(int, struct mbuf *);
int netisr_queue(int, struct mbuf *);
#define NETISR_MPSAFE 0x0001 /* ISR does not need Giant */
void netisr_register(int, netisr_t *, struct ifqueue *, int);
void netisr_unregister(int);
#endif
#endif
#endif
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