1/* $NetBSD: altq_cbq.h,v 1.8 2006/10/12 19:59:08 peter Exp $ */
2/* $KAME: altq_cbq.h,v 1.12 2003/10/03 05:05:15 kjc Exp $ */
3
4/*
5 * Copyright (c) Sun Microsystems, Inc. 1993-1998 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 *
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 *
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * 3. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by the SMCC Technology
21 * Development Group at Sun Microsystems, Inc.
22 *
23 * 4. The name of the Sun Microsystems, Inc nor may not be used to endorse or
24 * promote products derived from this software without specific prior
25 * written permission.
26 *
27 * SUN MICROSYSTEMS DOES NOT CLAIM MERCHANTABILITY OF THIS SOFTWARE OR THE
28 * SUITABILITY OF THIS SOFTWARE FOR ANY PARTICULAR PURPOSE. The software is
29 * provided "as is" without express or implied warranty of any kind.
30 *
31 * These notices must be retained in any copies of any part of this software.
32 */
33
34#ifndef _ALTQ_ALTQ_CBQ_H_
35#define _ALTQ_ALTQ_CBQ_H_
36
37#include <altq/altq.h>
38#include <altq/altq_rmclass.h>
39#include <altq/altq_red.h>
40#include <altq/altq_rio.h>
41
42#ifdef __cplusplus
43extern "C" {
44#endif
45
46#define NULL_CLASS_HANDLE 0
47
48/* class flags should be same as class flags in rm_class.h */
49#define CBQCLF_RED 0x0001 /* use RED */
50#define CBQCLF_ECN 0x0002 /* use RED/ECN */
51#define CBQCLF_RIO 0x0004 /* use RIO */
52#define CBQCLF_FLOWVALVE 0x0008 /* use flowvalve (aka penalty-box) */
53#define CBQCLF_CLEARDSCP 0x0010 /* clear diffserv codepoint */
54#define CBQCLF_BORROW 0x0020 /* borrow from parent */
55
56/* class flags only for root class */
57#define CBQCLF_WRR 0x0100 /* weighted-round robin */
58#define CBQCLF_EFFICIENT 0x0200 /* work-conserving */
59
60/* class flags for special classes */
61#define CBQCLF_ROOTCLASS 0x1000 /* root class */
62#define CBQCLF_DEFCLASS 0x2000 /* default class */
63#ifdef ALTQ3_COMPAT
64#define CBQCLF_CTLCLASS 0x4000 /* control class */
65#endif
66#define CBQCLF_CLASSMASK 0xf000 /* class mask */
67
68#define CBQ_MAXQSIZE 200
69#define CBQ_MAXPRI RM_MAXPRIO
70
71typedef struct _cbq_class_stats_ {
72 u_int32_t handle;
73 u_int depth;
74
75 struct pktcntr xmit_cnt; /* packets sent in this class */
76 struct pktcntr drop_cnt; /* dropped packets */
77 u_int over; /* # times went over limit */
78 u_int borrows; /* # times tried to borrow */
79 u_int overactions; /* # times invoked overlimit action */
80 u_int delays; /* # times invoked delay actions */
81
82 /* other static class parameters useful for debugging */
83 int priority;
84 int maxidle;
85 int minidle;
86 int offtime;
87 int qmax;
88 int ns_per_byte;
89 int wrr_allot;
90
91 int qcnt; /* # packets in queue */
92 int avgidle;
93
94 /* red and rio related info */
95 int qtype;
96 struct redstats red[3];
97} class_stats_t;
98
99#ifdef ALTQ3_COMPAT
100/*
101 * Define structures associated with IOCTLS for cbq.
102 */
103
104/*
105 * Define the CBQ interface structure. This must be included in all
106 * IOCTL's such that the CBQ driver may find the appropriate CBQ module
107 * associated with the network interface to be affected.
108 */
109struct cbq_interface {
110 char cbq_ifacename[IFNAMSIZ];
111};
112
113typedef struct cbq_class_spec {
114 u_int priority;
115 u_int nano_sec_per_byte;
116 u_int maxq;
117 u_int maxidle;
118 int minidle;
119 u_int offtime;
120 u_int32_t parent_class_handle;
121 u_int32_t borrow_class_handle;
122
123 u_int pktsize;
124 int flags;
125} cbq_class_spec_t;
126
127struct cbq_add_class {
128 struct cbq_interface cbq_iface;
129
130 cbq_class_spec_t cbq_class;
131 u_int32_t cbq_class_handle;
132};
133
134struct cbq_delete_class {
135 struct cbq_interface cbq_iface;
136 u_int32_t cbq_class_handle;
137};
138
139struct cbq_modify_class {
140 struct cbq_interface cbq_iface;
141
142 cbq_class_spec_t cbq_class;
143 u_int32_t cbq_class_handle;
144};
145
146struct cbq_add_filter {
147 struct cbq_interface cbq_iface;
148 u_int32_t cbq_class_handle;
149 struct flow_filter cbq_filter;
150
151 u_long cbq_filter_handle;
152};
153
154struct cbq_delete_filter {
155 struct cbq_interface cbq_iface;
156 u_long cbq_filter_handle;
157};
158
159/* number of classes are returned in nclasses field */
160struct cbq_getstats {
161 struct cbq_interface iface;
162 int nclasses;
163 class_stats_t *stats;
164};
165
166/*
167 * Define IOCTLs for CBQ.
168 */
169#define CBQ_IF_ATTACH _IOW('Q', 1, struct cbq_interface)
170#define CBQ_IF_DETACH _IOW('Q', 2, struct cbq_interface)
171#define CBQ_ENABLE _IOW('Q', 3, struct cbq_interface)
172#define CBQ_DISABLE _IOW('Q', 4, struct cbq_interface)
173#define CBQ_CLEAR_HIERARCHY _IOW('Q', 5, struct cbq_interface)
174#define CBQ_ADD_CLASS _IOWR('Q', 7, struct cbq_add_class)
175#define CBQ_DEL_CLASS _IOW('Q', 8, struct cbq_delete_class)
176#define CBQ_MODIFY_CLASS _IOWR('Q', 9, struct cbq_modify_class)
177#define CBQ_ADD_FILTER _IOWR('Q', 10, struct cbq_add_filter)
178#define CBQ_DEL_FILTER _IOW('Q', 11, struct cbq_delete_filter)
179#define CBQ_GETSTATS _IOWR('Q', 12, struct cbq_getstats)
180#endif /* ALTQ3_COMPAT */
181
182#ifdef _KERNEL
183/*
184 * Define macros only good for kernel drivers and modules.
185 */
186#define CBQ_WATCHDOG (hz / 20)
187#define CBQ_TIMEOUT 10
188#define CBQ_LS_TIMEOUT (20 * hz / 1000)
189
190#define CBQ_MAX_CLASSES 256
191
192#ifdef ALTQ3_COMPAT
193#define CBQ_MAX_FILTERS 256
194
195#define DISABLE 0x00
196#define ENABLE 0x01
197#endif /* ALTQ3_COMPAT */
198
199/*
200 * Define State structures.
201 */
202typedef struct cbqstate {
203#ifdef ALTQ3_COMPAT
204 struct cbqstate *cbq_next;
205#endif
206 int cbq_qlen; /* # of packets in cbq */
207 struct rm_class *cbq_class_tbl[CBQ_MAX_CLASSES];
208
209 struct rm_ifdat ifnp;
210 struct callout cbq_callout; /* for timeouts */
211#ifdef ALTQ3_CLFIER_COMPAT
212 struct acc_classifier cbq_classifier;
213#endif
214} cbq_state_t;
215
216#endif /* _KERNEL */
217
218#ifdef __cplusplus
219}
220#endif
221
222#endif /* !_ALTQ_ALTQ_CBQ_H_ */
223