Annotation of sys/altq/altq_priq.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: altq_priq.h,v 1.6 2004/01/14 08:42:23 kjc Exp $ */
2: /* $KAME: altq_priq.h,v 1.1 2000/10/18 09:15:23 kjc Exp $ */
3: /*
4: * Copyright (C) 2000-2002
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
38: extern "C" {
39: #endif
40:
41: #define PRIQ_MAXPRI 16 /* upper limit of the number of priorities */
42:
43: /* priq class flags */
44: #define PRCF_RED 0x0001 /* use RED */
45: #define PRCF_ECN 0x0002 /* use RED/ECN */
46: #define PRCF_RIO 0x0004 /* use RIO */
47: #define PRCF_CLEARDSCP 0x0010 /* clear diffserv codepoint */
48: #define PRCF_DEFAULTCLASS 0x1000 /* default class */
49:
50: /* special class handles */
51: #define PRIQ_NULLCLASS_HANDLE 0
52:
53: struct priq_classstats {
54: u_int32_t class_handle;
55:
56: u_int qlength;
57: u_int qlimit;
58: u_int period;
59: struct pktcntr xmitcnt; /* transmitted packet counter */
60: struct pktcntr dropcnt; /* dropped packet counter */
61:
62: /* red and rio related info */
63: int qtype;
64: struct redstats red[3]; /* rio has 3 red stats */
65: };
66:
67: #ifdef _KERNEL
68:
69: struct priq_class {
70: u_int32_t cl_handle; /* class handle */
71: class_queue_t *cl_q; /* class queue structure */
72: struct red *cl_red; /* RED state */
73: int cl_pri; /* priority */
74: int cl_flags; /* class flags */
75: struct priq_if *cl_pif; /* back pointer to pif */
76: struct altq_pktattr *cl_pktattr; /* saved header used by ECN */
77:
78: /* statistics */
79: u_int cl_period; /* backlog period */
80: struct pktcntr cl_xmitcnt; /* transmitted packet counter */
81: struct pktcntr cl_dropcnt; /* dropped packet counter */
82: };
83:
84: /*
85: * priq interface state
86: */
87: struct priq_if {
88: struct priq_if *pif_next; /* interface state list */
89: struct ifaltq *pif_ifq; /* backpointer to ifaltq */
90: u_int pif_bandwidth; /* link bandwidth in bps */
91: int pif_maxpri; /* max priority in use */
92: struct priq_class *pif_default; /* default class */
93: struct priq_class *pif_classes[PRIQ_MAXPRI]; /* classes */
94: };
95:
96: #endif /* _KERNEL */
97:
98: #ifdef __cplusplus
99: }
100: #endif
101:
102: #endif /* _ALTQ_ALTQ_PRIQ_H_ */
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