1/* $NetBSD: altq_priq.h,v 1.7 2006/10/12 19:59:08 peter Exp $ */
2/* $KAME: altq_priq.h,v 1.7 2003/10/03 05:05:15 kjc Exp $ */
3/*
4 * Copyright (C) 2000-2003
5 * Sony Computer Science Laboratories Inc. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY SONY CSL AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL SONY CSL OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29#ifndef _ALTQ_ALTQ_PRIQ_H_
30#define _ALTQ_ALTQ_PRIQ_H_
31
32#include <altq/altq.h>
33#include <altq/altq_classq.h>
34#include <altq/altq_red.h>
35#include <altq/altq_rio.h>
36
37#ifdef __cplusplus
38extern "C" {
39#endif
40
41#define PRIQ_MAXPRI 16 /* upper limit of the number of priorities */
42
43#ifdef ALTQ3_COMPAT
44struct priq_interface {
45 char ifname[IFNAMSIZ]; /* interface name (e.g., fxp0) */
46 u_long arg; /* request-specific argument */
47};
48
49struct priq_add_class {
50 struct priq_interface iface;
51 int pri; /* priority (0 is the lowest) */
52 int qlimit; /* queue size limit */
53 int flags; /* misc flags (see below) */
54
55 u_int32_t class_handle; /* return value */
56};
57#endif /* ALTQ3_COMPAT */
58
59/* priq class flags */
60#define PRCF_RED 0x0001 /* use RED */
61#define PRCF_ECN 0x0002 /* use RED/ECN */
62#define PRCF_RIO 0x0004 /* use RIO */
63#define PRCF_CLEARDSCP 0x0010 /* clear diffserv codepoint */
64#define PRCF_DEFAULTCLASS 0x1000 /* default class */
65
66/* special class handles */
67#define PRIQ_NULLCLASS_HANDLE 0
68
69#ifdef ALTQ3_COMPAT
70struct priq_delete_class {
71 struct priq_interface iface;
72 u_int32_t class_handle;
73};
74
75struct priq_modify_class {
76 struct priq_interface iface;
77 u_int32_t class_handle;
78 int pri;
79 int qlimit;
80 int flags;
81};
82
83struct priq_add_filter {
84 struct priq_interface iface;
85 u_int32_t class_handle;
86 struct flow_filter filter;
87
88 u_long filter_handle; /* return value */
89};
90
91struct priq_delete_filter {
92 struct priq_interface iface;
93 u_long filter_handle;
94};
95#endif /* ALTQ3_COMPAT */
96
97struct priq_classstats {
98 u_int32_t class_handle;
99
100 u_int qlength;
101 u_int qlimit;
102 u_int period;
103 struct pktcntr xmitcnt; /* transmitted packet counter */
104 struct pktcntr dropcnt; /* dropped packet counter */
105
106 /* red and rio related info */
107 int qtype;
108 struct redstats red[3]; /* rio has 3 red stats */
109};
110
111#ifdef ALTQ3_COMPAT
112struct priq_class_stats {
113 struct priq_interface iface;
114 int maxpri; /* in/out */
115
116 struct priq_classstats *stats; /* pointer to stats array */
117};
118
119#define PRIQ_IF_ATTACH _IOW('Q', 1, struct priq_interface)
120#define PRIQ_IF_DETACH _IOW('Q', 2, struct priq_interface)
121#define PRIQ_ENABLE _IOW('Q', 3, struct priq_interface)
122#define PRIQ_DISABLE _IOW('Q', 4, struct priq_interface)
123#define PRIQ_CLEAR _IOW('Q', 5, struct priq_interface)
124#define PRIQ_ADD_CLASS _IOWR('Q', 7, struct priq_add_class)
125#define PRIQ_DEL_CLASS _IOW('Q', 8, struct priq_delete_class)
126#define PRIQ_MOD_CLASS _IOW('Q', 9, struct priq_modify_class)
127#define PRIQ_ADD_FILTER _IOWR('Q', 10, struct priq_add_filter)
128#define PRIQ_DEL_FILTER _IOW('Q', 11, struct priq_delete_filter)
129#define PRIQ_GETSTATS _IOWR('Q', 12, struct priq_class_stats)
130
131#endif /* ALTQ3_COMPAT */
132
133#ifdef _KERNEL
134
135struct priq_class {
136 u_int32_t cl_handle; /* class handle */
137 class_queue_t *cl_q; /* class queue structure */
138 struct red *cl_red; /* RED state */
139 int cl_pri; /* priority */
140 int cl_flags; /* class flags */
141 struct priq_if *cl_pif; /* back pointer to pif */
142 struct altq_pktattr *cl_pktattr; /* saved header used by ECN */
143
144 /* statistics */
145 u_int cl_period; /* backlog period */
146 struct pktcntr cl_xmitcnt; /* transmitted packet counter */
147 struct pktcntr cl_dropcnt; /* dropped packet counter */
148};
149
150/*
151 * priq interface state
152 */
153struct priq_if {
154 struct priq_if *pif_next; /* interface state list */
155 struct ifaltq *pif_ifq; /* backpointer to ifaltq */
156 u_int pif_bandwidth; /* link bandwidth in bps */
157 int pif_maxpri; /* max priority in use */
158 struct priq_class *pif_default; /* default class */
159 struct priq_class *pif_classes[PRIQ_MAXPRI]; /* classes */
160#ifdef ALTQ3_CLFIER_COMPAT
161 struct acc_classifier pif_classifier; /* classifier */
162#endif
163};
164
165#endif /* _KERNEL */
166
167#ifdef __cplusplus
168}
169#endif
170
171#endif /* _ALTQ_ALTQ_PRIQ_H_ */