altq_priq.h

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    1 /*      $NetBSD: altq_priq.h,v 1.5 2005/02/26 23:04:16 perry Exp $      */
    2 /*      $KAME: altq_priq.h,v 1.1 2000/10/18 09:15:23 kjc Exp $  */
    3 /*
    4  * Copyright (C) 2000
    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 struct priq_interface {
   44         char    ifname[IFNAMSIZ];       /* interface name (e.g., fxp0) */
   45         u_long  arg;                    /* request-specific argument */
   46 };
   47 
   48 struct priq_add_class {
   49         struct priq_interface   iface;
   50         int                     pri;    /* priority (0 is the lowest) */
   51         int                     qlimit; /* queue size limit */
   52         int                     flags;  /* misc flags (see below) */
   53 
   54         u_long                  class_handle;  /* return value */
   55 };
   56 
   57 /* priq class flags */
   58 #define PRCF_RED                0x0001  /* use RED */
   59 #define PRCF_ECN                0x0002  /* use RED/ECN */
   60 #define PRCF_RIO                0x0004  /* use RIO */
   61 #define PRCF_CLEARDSCP          0x0010  /* clear diffserv codepoint */
   62 #define PRCF_DEFAULTCLASS       0x1000  /* default class */
   63 
   64 /* special class handles */
   65 #define PRIQ_NULLCLASS_HANDLE   0
   66 
   67 struct priq_delete_class {
   68         struct priq_interface   iface;
   69         u_long                  class_handle;
   70 };
   71 
   72 struct priq_modify_class {
   73         struct priq_interface   iface;
   74         u_long                  class_handle;
   75         int                     pri;
   76         int                     qlimit;
   77         int                     flags;
   78 };
   79 
   80 struct priq_add_filter {
   81         struct priq_interface   iface;
   82         u_long                  class_handle;
   83         struct flow_filter      filter;
   84 
   85         u_long                  filter_handle;  /* return value */
   86 };
   87 
   88 struct priq_delete_filter {
   89         struct priq_interface   iface;
   90         u_long                  filter_handle;
   91 };
   92 
   93 struct priq_basic_class_stats {
   94         u_long                  class_handle;
   95 
   96         u_int                   qlength;
   97         u_int                   period;
   98         struct pktcntr          xmitcnt;  /* transmitted packet counter */
   99         struct pktcntr          dropcnt;  /* dropped packet counter */
  100 
  101         /* red and rio related info */
  102         int             qtype;
  103         struct redstats red[3];         /* rio has 3 red stats */
  104 };
  105 
  106 struct priq_class_stats {
  107         struct priq_interface   iface;
  108         int                     maxpri;   /* in/out */
  109 
  110         struct priq_basic_class_stats   *stats;   /* pointer to stats array */
  111 };
  112 
  113 #define PRIQ_IF_ATTACH          _IOW('Q', 1, struct priq_interface)
  114 #define PRIQ_IF_DETACH          _IOW('Q', 2, struct priq_interface)
  115 #define PRIQ_ENABLE             _IOW('Q', 3, struct priq_interface)
  116 #define PRIQ_DISABLE            _IOW('Q', 4, struct priq_interface)
  117 #define PRIQ_CLEAR              _IOW('Q', 5, struct priq_interface)
  118 #define PRIQ_ADD_CLASS          _IOWR('Q', 7, struct priq_add_class)
  119 #define PRIQ_DEL_CLASS          _IOW('Q', 8, struct priq_delete_class)
  120 #define PRIQ_MOD_CLASS          _IOW('Q', 9, struct priq_modify_class)
  121 #define PRIQ_ADD_FILTER         _IOWR('Q', 10, struct priq_add_filter)
  122 #define PRIQ_DEL_FILTER         _IOW('Q', 11, struct priq_delete_filter)
  123 #define PRIQ_GETSTATS           _IOWR('Q', 12, struct priq_class_stats)
  124 
  125 #ifdef _KERNEL
  126 
  127 struct priq_class {
  128         u_long          cl_handle;      /* class handle */
  129         class_queue_t   *cl_q;          /* class queue structure */
  130         struct red      *cl_red;        /* RED state */
  131         int             cl_pri;         /* priority */
  132         int             cl_flags;       /* class flags */
  133         struct priq_if  *cl_pif;        /* back pointer to pif */
  134         struct altq_pktattr *cl_pktattr; /* saved header used by ECN */
  135 
  136         /* statistics */
  137         u_int           cl_period;      /* backlog period */
  138         struct pktcntr  cl_xmitcnt;     /* transmitted packet counter */
  139         struct pktcntr  cl_dropcnt;     /* dropped packet counter */
  140 };
  141 
  142 /*
  143  * priq interface state
  144  */
  145 struct priq_if {
  146         struct priq_if          *pif_next;      /* interface state list */
  147         struct ifaltq           *pif_ifq;       /* backpointer to ifaltq */
  148         u_int                   pif_bandwidth;  /* link bandwidth in bps */
  149         int                     pif_maxpri;     /* max priority in use */
  150         struct priq_class       *pif_default;   /* default class */
  151         struct priq_class       *pif_classes[PRIQ_MAXPRI]; /* classes */
  152         struct acc_classifier   pif_classifier; /* classifier */
  153 };
  154 
  155 #endif /* _KERNEL */
  156 
  157 #ifdef __cplusplus
  158 }
  159 #endif
  160 
  161 #endif /* _ALTQ_ALTQ_PRIQ_H_ */

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FreeBSD/Linux Kernel Cross Reference sys/altq/altq_priq.h

FreeBSD/Linux Kernel Cross Reference
sys/altq/altq_priq.h