sys/altq/altq_wfq.h

   1 /*      $NetBSD: altq_wfq.h,v 1.5 2006/10/12 19:59:08 peter Exp $       */
   2 /*      $KAME: altq_wfq.h,v 1.8 2003/07/10 12:07:49 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  *  March 27, 1997.  Written by Hiroshi Kyusojin of Keio University
  31  *  (kyu@mt.cs.keio.ac.jp).
  32  */
  33
  34 #ifndef _ALTQ_ALTQ_WFQ_H_
  35 #define _ALTQ_ALTQ_WFQ_H_
  36
  37 #include <altq/altq.h>
  38
  39 #define DEFAULT_QSIZE   256
  40 #define MAX_QSIZE       2048
  41
  42 struct wfq_interface{
  43         char wfq_ifacename[IFNAMSIZ];
  44 };
  45
  46 struct wfq_getqid{
  47         struct wfq_interface    iface;
  48 #ifdef ALTQ3_CLFIER_COMPAT
  49         struct flowinfo         flow;
  50 #endif
  51         u_long                  qid;
  52 };
  53
  54 struct wfq_setweight {
  55         struct wfq_interface    iface;
  56         int                     qid;
  57         int                     weight;
  58 };
  59
  60 typedef struct each_queue_stats {
  61         int bytes;              /* bytes in this queue */
  62         int weight;             /* weight in percent */
  63         struct pktcntr xmit_cnt;
  64         struct pktcntr drop_cnt;
  65 } queue_stats;
  66
  67 struct wfq_getstats {
  68         struct wfq_interface    iface;
  69         int                     qid;
  70         queue_stats             stats;
  71 };
  72
  73 struct wfq_conf {
  74         struct wfq_interface    iface;
  75         int                     hash_policy;    /* hash policy */
  76         int                     nqueues;        /* number of queues */
  77         int                     qlimit;         /* queue size in bytes */
  78 };
  79
  80 #define WFQ_HASH_DSTADDR        0       /* hash by dst address */
  81 #define WFQ_HASH_SRCPORT        1       /* hash by src port */
  82 #define WFQ_HASH_FULL           2       /* hash by all fields */
  83 #define WFQ_HASH_SRCADDR        3       /* hash by src address */
  84
  85 #define WFQ_IF_ATTACH           _IOW('Q', 1, struct wfq_interface)
  86 #define WFQ_IF_DETACH           _IOW('Q', 2, struct wfq_interface)
  87 #define WFQ_ENABLE              _IOW('Q', 3, struct wfq_interface)
  88 #define WFQ_DISABLE             _IOW('Q', 4, struct wfq_interface)
  89 #define WFQ_CONFIG              _IOWR('Q', 6, struct wfq_conf)
  90 #define WFQ_GET_STATS           _IOWR('Q', 12, struct wfq_getstats)
  91 #define WFQ_GET_QID             _IOWR('Q', 30, struct wfq_getqid)
  92 #define WFQ_SET_WEIGHT          _IOWR('Q', 31, struct wfq_setweight)
  93
  94 #ifdef _KERNEL
  95
  96 #define HWM                     (64 * 1024)
  97 #define WFQ_QUOTA               512     /* quota bytes to send at a time */
  98 #define WFQ_ADDQUOTA(q)         ((q)->quota += WFQ_QUOTA * (q)->weight / 100)
  99 #define ENABLE                  0
 100 #define DISABLE                 1
 101
 102 typedef struct weighted_fair_queue{
 103         struct weighted_fair_queue *next, *prev;
 104         struct mbuf *head, *tail;
 105         int bytes;                      /* bytes in this queue */
 106         int quota;                      /* bytes sent in this round */
 107         int weight;                     /* weight in percent */
 108
 109         struct pktcntr xmit_cnt;
 110         struct pktcntr drop_cnt;
 111 } wfq;
 112
 113
 114 typedef struct wfqstate {
 115         struct wfqstate *next;          /* for wfqstate list */
 116         struct ifaltq *ifq;
 117         int nums;                       /* number of queues */
 118         int hwm;                        /* high water mark */
 119         int bytes;                      /* total bytes in all the queues */
 120         wfq *rrp;                       /* round robin pointer */
 121         wfq *queue;                     /* pointer to queue list */
 122 #ifdef ALTQ3_CLFIER_COMPAT
 123         u_long (*hash_func)(struct flowinfo *, int);
 124 #endif
 125         u_int32_t fbmask;               /* filter bitmask */
 126 } wfq_state_t;
 127
 128 #endif /* _KERNEL */
 129
 130 #endif /* _ALTQ_ALTQ_WFQ_H */