freebsd-dev/sys/i4b/include/i4b_mbuf.h

57 lines
2.1 KiB
C

/*-
* Copyright (c) 1997, 2002 Hellmuth Michaelis. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*/
/*---------------------------------------------------------------------------
*
* i4b - mbuf handling support routines
* --------------------------------------
*
* $FreeBSD$
*
* last edit-date: [Sat Mar 9 15:58:11 2002]
*
*---------------------------------------------------------------------------*/
#ifndef _I4B_MBUF_H_
#define _I4B_MBUF_H_
/* layer 1 / layer 2 comunication: 3rd ph_data_req parameter */
#define MBUF_DONTFREE 0
#define MBUF_FREE 1
#define IF_QEMPTY(ifq) ((ifq)->ifq_len == 0)
struct mbuf *i4b_Dgetmbuf( int );
void i4b_Dfreembuf( struct mbuf *m );
void i4b_Dcleanifq( struct ifqueue * );
struct mbuf *i4b_Bgetmbuf( int );
void i4b_Bfreembuf( struct mbuf *m );
void i4b_Bcleanifq( struct ifqueue * );
#endif /* _I4B_MBUF_H_ */
/* EOF */