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/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 only,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License version 2 for more details (a copy is included
* in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU General Public License
* version 2 along with this program; If not, see
* http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*
* GPL HEADER END
*/
/*
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
* Lustre is a trademark of Sun Microsystems, Inc.
*/
#ifndef __LNET_LINUX_LIB_LNET_H__
#define __LNET_LINUX_LIB_LNET_H__
#ifndef __LNET_LIB_LNET_H__
#error Do not #include this file directly. #include <linux/lnet/lib-lnet.h> instead
#endif
# include <asm/page.h>
# include <linux/string.h>
# include <asm/io.h>
#include "../../libcfs/libcfs.h"
static inline __u64
lnet_page2phys(struct page *p)
{
/* compiler optimizer will elide unused branches */
switch (sizeof(typeof(page_to_phys(p)))) {
case 4:
/* page_to_phys returns a 32 bit physical address. This must
* be a 32 bit machine with <= 4G memory and we must ensure we
* don't sign extend when converting to 64 bits. */
return (unsigned long)page_to_phys(p);
case 8:
/* page_to_phys returns a 64 bit physical address :) */
return page_to_phys(p);
default:
LBUG();
return 0;
}
}
#define LNET_ROUTER
#endif /* __LNET_LINUX_LIB_LNET_H__ */
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