1 /*
2 * Copyright (c) 1997, 2002 Hellmuth Michaelis. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
23 * SUCH DAMAGE.
24 *
25 *---------------------------------------------------------------------------
26 *
27 * i4b - mbuf handling support routines
28 * --------------------------------------
29 *
30 * $FreeBSD: releng/5.0/sys/i4b/include/i4b_mbuf.h 92487 2002-03-17 09:33:15Z hm $
31 *
32 * last edit-date: [Sat Mar 9 15:58:11 2002]
33 *
34 *---------------------------------------------------------------------------*/
35
36 #ifndef _I4B_MBUF_H_
37 #define _I4B_MBUF_H_
38
39 /* layer 1 / layer 2 comunication: 3rd ph_data_req parameter */
40 #define MBUF_DONTFREE 0
41 #define MBUF_FREE 1
42
43 #define IF_QEMPTY(ifq) ((ifq)->ifq_len == 0)
44
45 struct mbuf *i4b_Dgetmbuf( int );
46 void i4b_Dfreembuf( struct mbuf *m );
47 void i4b_Dcleanifq( struct ifqueue * );
48
49 struct mbuf *i4b_Bgetmbuf( int );
50 void i4b_Bfreembuf( struct mbuf *m );
51 void i4b_Bcleanifq( struct ifqueue * );
52
53 #endif /* _I4B_MBUF_H_ */
54
55 /* EOF */
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