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      1 /*	$NetBSD: altq_blue.h,v 1.5 2006/10/12 19:59:08 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 
     35 struct blue_interface {
     36 	char	blue_ifname[IFNAMSIZ];
     37 };
     38 
     39 struct 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 
     53 struct 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 
     79 typedef 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 
    103 typedef 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 
    112 extern int blue_init(blue_t *, int, int, int, int);
    113 extern int blue_addq(blue_t *, class_queue_t *, struct mbuf *,
    114 		     struct altq_pktattr *);
    115 extern struct mbuf *blue_getq(blue_t *, class_queue_t *);
    116 
    117 #endif /* _KERNEL */
    118 
    119 #endif /* _ALTQ_ALTQ_BLUE_H_ */
    120