pktqueue.h revision 1.4.6.2 1 1.4.6.2 tls /* $NetBSD: pktqueue.h,v 1.4.6.2 2014/08/20 00:04:34 tls Exp $ */
2 1.4.6.2 tls
3 1.4.6.2 tls /*-
4 1.4.6.2 tls * Copyright (c) 2014 The NetBSD Foundation, Inc.
5 1.4.6.2 tls * All rights reserved.
6 1.4.6.2 tls *
7 1.4.6.2 tls * This code is derived from software contributed to The NetBSD Foundation
8 1.4.6.2 tls * by Mindaugas Rasiukevicius.
9 1.4.6.2 tls *
10 1.4.6.2 tls * Redistribution and use in source and binary forms, with or without
11 1.4.6.2 tls * modification, are permitted provided that the following conditions
12 1.4.6.2 tls * are met:
13 1.4.6.2 tls * 1. Redistributions of source code must retain the above copyright
14 1.4.6.2 tls * notice, this list of conditions and the following disclaimer.
15 1.4.6.2 tls * 2. Redistributions in binary form must reproduce the above copyright
16 1.4.6.2 tls * notice, this list of conditions and the following disclaimer in the
17 1.4.6.2 tls * documentation and/or other materials provided with the distribution.
18 1.4.6.2 tls *
19 1.4.6.2 tls * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 1.4.6.2 tls * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 1.4.6.2 tls * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 1.4.6.2 tls * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 1.4.6.2 tls * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 1.4.6.2 tls * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 1.4.6.2 tls * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 1.4.6.2 tls * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 1.4.6.2 tls * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 1.4.6.2 tls * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 1.4.6.2 tls * POSSIBILITY OF SUCH DAMAGE.
30 1.4.6.2 tls */
31 1.4.6.2 tls
32 1.4.6.2 tls #ifndef _NET_PKTQUEUE_H_
33 1.4.6.2 tls #define _NET_PKTQUEUE_H_
34 1.4.6.2 tls
35 1.4.6.2 tls #if !defined(_KERNEL)
36 1.4.6.2 tls #error "not supposed to be exposed to userland."
37 1.4.6.2 tls #endif
38 1.4.6.2 tls
39 1.4.6.2 tls #include <sys/sysctl.h>
40 1.4.6.2 tls
41 1.4.6.2 tls struct mbuf;
42 1.4.6.2 tls
43 1.4.6.2 tls typedef struct pktqueue pktqueue_t;
44 1.4.6.2 tls
45 1.4.6.2 tls typedef enum { PKTQ_MAXLEN, PKTQ_NITEMS, PKTQ_DROPS } pktq_count_t;
46 1.4.6.2 tls
47 1.4.6.2 tls pktqueue_t * pktq_create(size_t, void (*)(void *), void *);
48 1.4.6.2 tls void pktq_destroy(pktqueue_t *);
49 1.4.6.2 tls
50 1.4.6.2 tls bool pktq_enqueue(pktqueue_t *, struct mbuf *, const u_int);
51 1.4.6.2 tls struct mbuf * pktq_dequeue(pktqueue_t *);
52 1.4.6.2 tls void pktq_barrier(pktqueue_t *);
53 1.4.6.2 tls void pktq_flush(pktqueue_t *);
54 1.4.6.2 tls int pktq_set_maxlen(pktqueue_t *, size_t);
55 1.4.6.2 tls
56 1.4.6.2 tls uint32_t pktq_rps_hash(const struct mbuf *);
57 1.4.6.2 tls uint64_t pktq_get_count(pktqueue_t *, pktq_count_t);
58 1.4.6.2 tls
59 1.4.6.2 tls int sysctl_pktq_maxlen(SYSCTLFN_PROTO, pktqueue_t *);
60 1.4.6.2 tls int sysctl_pktq_count(SYSCTLFN_PROTO, pktqueue_t *, u_int);
61 1.4.6.2 tls
62 1.4.6.2 tls #endif
63