1/*-
2 * Copyright (C) 2000-2003
3 * Sony Computer Science Laboratories Inc. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY SONY CSL AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL SONY CSL OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $KAME: altq_priq.h,v 1.7 2003/10/03 05:05:15 kjc Exp $
27 */
28
29#ifndef _ALTQ_ALTQ_PRIQ_H_
30#define _ALTQ_ALTQ_PRIQ_H_
31
32#include <net/altq/altq.h>
33#include <net/altq/altq_classq.h>
34#include <net/altq/altq_codel.h>
35#include <net/altq/altq_red.h>
36#include <net/altq/altq_rio.h>
37
38#ifdef __cplusplus
39extern "C" {
40#endif
41
42#define PRIQ_MAXPRI 16 /* upper limit of the number of priorities */
43
44/* priq class flags */
45#define PRCF_RED 0x0001 /* use RED */
46#define PRCF_ECN 0x0002 /* use RED/ECN */
47#define PRCF_RIO 0x0004 /* use RIO */
48#define PRCF_CODEL 0x0008 /* use CoDel */
49#define PRCF_CLEARDSCP 0x0010 /* clear diffserv codepoint */
50#define PRCF_DEFAULTCLASS 0x1000 /* default class */
51
52/* special class handles */
53#define PRIQ_NULLCLASS_HANDLE 0
54
55struct priq_classstats {
56 u_int32_t class_handle;
57
58 u_int qlength;
59 u_int qlimit;
60 u_int period;
61 struct pktcntr xmitcnt; /* transmitted packet counter */
62 struct pktcntr dropcnt; /* dropped packet counter */
63
64 /* codel, red and rio related info */
65 int qtype;
66 struct redstats red[3]; /* rio has 3 red stats */
67 struct codel_stats codel;
68};
69
70/*
71 * PRIQ_STATS_VERSION is defined in altq.h to work around issues stemming
72 * from mixing of public-API and internal bits in each scheduler-specific
73 * header.
74 */
75
76#ifdef _KERNEL
77
78struct priq_class {
79 u_int32_t cl_handle; /* class handle */
80 class_queue_t *cl_q; /* class queue structure */
81 union {
82 struct red *cl_red; /* RED state */
83 struct codel *cl_codel; /* CoDel state */
84 } cl_aqm;
85#define cl_red cl_aqm.cl_red
86#define cl_codel cl_aqm.cl_codel
87 int cl_pri; /* priority */
88 int cl_flags; /* class flags */
89 struct priq_if *cl_pif; /* back pointer to pif */
90 struct altq_pktattr *cl_pktattr; /* saved header used by ECN */
91
92 /* statistics */
93 u_int cl_period; /* backlog period */
94 struct pktcntr cl_xmitcnt; /* transmitted packet counter */
95 struct pktcntr cl_dropcnt; /* dropped packet counter */
96};
97
98/*
99 * priq interface state
100 */
101struct priq_if {
102 struct priq_if *pif_next; /* interface state list */
103 struct ifaltq *pif_ifq; /* backpointer to ifaltq */
104 u_int pif_bandwidth; /* link bandwidth in bps */
105 int pif_maxpri; /* max priority in use */
106 struct priq_class *pif_default; /* default class */
107 struct priq_class *pif_classes[PRIQ_MAXPRI]; /* classes */
108#ifdef ALTQ3_CLFIER_COMPAT
109 struct acc_classifier pif_classifier; /* classifier */
110#endif
111};
112
113#endif /* _KERNEL */
114
115#ifdef __cplusplus
116}
117#endif
118
119#endif /* _ALTQ_ALTQ_PRIQ_H_ */