1/*	$NetBSD: altq_blue.h,v 1.4.12.1 2006/03/18 12:08:18 peter Exp $	*/
2/*	$KAME: altq_blue.h,v 1.7 2002/11/29 04:36:22 kjc Exp $	*/
3
4/*
5 * Copyright (C) 1997-2002
6 *	Sony Computer Science Laboratories Inc.  All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY SONY CSL AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL SONY CSL OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30#ifndef _ALTQ_ALTQ_BLUE_H_
31#define	_ALTQ_ALTQ_BLUE_H_
32
33#include <altq/altq_classq.h>
34
35struct blue_interface {
36	char	blue_ifname[IFNAMSIZ];
37};
38
39struct blue_stats {
40	struct blue_interface iface;
41	int q_len;
42	int q_limit;
43	int q_pmark;
44	u_quad_t xmit_packets;
45	u_quad_t xmit_bytes;
46	u_quad_t drop_packets;
47	u_quad_t drop_bytes;
48	u_quad_t drop_forced;
49	u_quad_t drop_unforced;
50	u_quad_t marked_packets;
51};
52
53struct blue_conf {
54	struct blue_interface iface;
55	int blue_limit;
56	int blue_max_pmark;
57	int blue_hold_time;
58	int blue_pkttime;	/* average packet time in usec */
59	int blue_flags;		/* see below */
60};
61
62/* blue flags */
63#define	BLUEF_ECN4	0x01	/* use packet marking for IPv4 packets */
64#define	BLUEF_ECN6	0x02	/* use packet marking for IPv6 packets */
65#define	BLUEF_ECN	(BLUEF_ECN4 | BLUEF_ECN6)
66
67/*
68 * IOCTLs for BLUE
69 */
70#define	BLUE_IF_ATTACH		_IOW('Q', 1, struct blue_interface)
71#define	BLUE_IF_DETACH		_IOW('Q', 2, struct blue_interface)
72#define	BLUE_ENABLE		_IOW('Q', 3, struct blue_interface)
73#define	BLUE_DISABLE		_IOW('Q', 4, struct blue_interface)
74#define	BLUE_CONFIG		_IOWR('Q', 6, struct blue_conf)
75#define	BLUE_GETSTATS		_IOWR('Q', 12, struct blue_stats)
76
77#ifdef _KERNEL
78
79typedef struct blue {
80	int blue_pkttime; 	/* average packet time in micro sec
81				   used for idle calibration */
82	int blue_flags;		/* blue flags */
83
84	/* blue parameters */
85	int blue_pmark;		/* 0-1000 (mark probability*10000) */
86	int blue_max_pmark;	/* sets precision of marking probability */
87	int blue_hold_time;	/* hold time in usec */
88
89	int blue_idle;		/* queue was empty */
90	struct timeval blue_last;  /* timestamp when the queue becomes idle */
91
92	struct {
93		u_quad_t xmit_packets;
94		u_quad_t xmit_bytes;
95		u_quad_t drop_packets;
96		u_quad_t drop_bytes;
97		u_quad_t drop_forced;
98		u_quad_t drop_unforced;
99		u_quad_t marked_packets;
100	} blue_stats;
101} blue_t;
102
103typedef struct blue_queue {
104	struct blue_queue *rq_next;	/* next blue_state in the list */
105	struct ifaltq *rq_ifq;		/* backpointer to ifaltq */
106
107	class_queue_t *rq_q;
108
109	blue_t *rq_blue;
110} blue_queue_t;
111
112extern int blue_init(blue_t *, int, int, int, int);
113extern int blue_addq(blue_t *, class_queue_t *, struct mbuf *,
114		     struct altq_pktattr *);
115extern struct mbuf *blue_getq(blue_t *, class_queue_t *);
116
117#endif /* _KERNEL */
118
119#endif /* _ALTQ_ALTQ_BLUE_H_ */
120