sys/altq/altq_blue.h

   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
  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_ */