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Import of OpenBSD 4.2 release kernel tree with initial code to support 
Jornada 720/728, StrongARM 1110-based handheld PC.
At this point kernel roots on NFS and boots into vfs_mountroot() and traps.
What is supported:
- glass console, Jornada framebuffer (jfb) works in 16bpp direct color mode
(needs some palette tweaks for non black/white/blue colors, i think)
- saic, SA11x0 interrupt controller (needs cleanup)
- sacom, SA11x0 UART (supported only as boot console for now)
- SA11x0 GPIO controller fully supported (but can't handle multiple interrupt
handlers on one gpio pin)
- sassp, SSP port on SA11x0 that attaches spibus
- Jornada microcontroller (jmcu) to control kbd, battery, etc throught
the SPI bus (wskbd attaches on jmcu, but not tested)
- tod functions seem work
- initial code for SA-1111 (chip companion) : this is TODO

Next important steps, i think:
- gpio and intc on sa1111
- pcmcia support for sa11x0 (and sa1111 help logic)
- REAL root on nfs when we have PCMCIA support (we may use any of supported pccard NICs)
- root on wd0! (using already supported PCMCIA-ATA)

/*	$OpenBSD: if_gif.h,v 1.9 2003/12/03 14:51:05 markus Exp $	*/
/*	$KAME: if_gif.h,v 1.17 2000/09/11 11:36:41 sumikawa Exp $	*/

/*
 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
 * 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 project 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 PROJECT 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 PROJECT 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.
 */

/*
 * if_gif.h
 */

#ifndef _NET_IF_GIF_H_
#define _NET_IF_GIF_H_


#include <netinet/in.h>
/* XXX sigh, why route have struct route instead of pointer? */

struct gif_softc {
	struct ifnet	gif_if;	   /* common area */
	struct sockaddr	*gif_psrc; /* Physical src addr */
	struct sockaddr	*gif_pdst; /* Physical dst addr */
	union {
		struct route  gifscr_ro;    /* xxx */
#ifdef INET6
		struct route_in6 gifscr_ro6; /* xxx */
#endif
	} gifsc_gifscr;
	int		gif_flags;
	LIST_ENTRY(gif_softc) gif_list;	/* list of all gifs */
};

#define gif_ro gifsc_gifscr.gifscr_ro
#ifdef INET6
#define gif_ro6 gifsc_gifscr.gifscr_ro6
#endif

#define GIF_MTU		(1280)	/* Default MTU */
#define	GIF_MTU_MIN	(1280)	/* Minimum MTU */
#define	GIF_MTU_MAX	(8192)	/* Maximum MTU */

extern LIST_HEAD(gif_softc_head, gif_softc) gif_softc_list;

/* Prototypes */
int gif_output(struct ifnet *, struct mbuf *,
		    struct sockaddr *, struct rtentry *);
int gif_ioctl(struct ifnet *, u_long, caddr_t);
void gif_start(struct ifnet *);
#endif /* _NET_IF_GIF_H_ */