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

     /*      $NetBSD: altq_priq.h,v 1.7 2006/10/12 19:59:08 peter Exp $      */
     /*      $KAME: altq_priq.h,v 1.7 2003/10/03 05:05:15 kjc Exp $  */
     /*
      * Copyright (C) 2000-2003
      *      Sony Computer Science Laboratories Inc.  All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY SONY CSL AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL SONY CSL OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     */
    
    #ifndef _ALTQ_ALTQ_PRIQ_H_
    #define _ALTQ_ALTQ_PRIQ_H_
    
    #include <altq/altq.h>
    #include <altq/altq_classq.h>
    #include <altq/altq_red.h>
    #include <altq/altq_rio.h>
    
    #ifdef __cplusplus
    extern "C" {
    #endif
    
    #define PRIQ_MAXPRI     16      /* upper limit of the number of priorities */
    
    #ifdef ALTQ3_COMPAT
    struct priq_interface {
            char    ifname[IFNAMSIZ];       /* interface name (e.g., fxp0) */
            u_long  arg;                    /* request-specific argument */
    };
    
    struct priq_add_class {
            struct priq_interface   iface;
            int                     pri;    /* priority (0 is the lowest) */
            int                     qlimit; /* queue size limit */
            int                     flags;  /* misc flags (see below) */
    
            u_int32_t               class_handle;  /* return value */
    };
    #endif /* ALTQ3_COMPAT */
    
    /* priq class flags */
    #define PRCF_RED                0x0001  /* use RED */
    #define PRCF_ECN                0x0002  /* use RED/ECN */
    #define PRCF_RIO                0x0004  /* use RIO */
    #define PRCF_CLEARDSCP          0x0010  /* clear diffserv codepoint */
    #define PRCF_DEFAULTCLASS       0x1000  /* default class */
    
    /* special class handles */
    #define PRIQ_NULLCLASS_HANDLE   0
    
    #ifdef ALTQ3_COMPAT
    struct priq_delete_class {
            struct priq_interface   iface;
            u_int32_t               class_handle;
    };
    
    struct priq_modify_class {
            struct priq_interface   iface;
            u_int32_t               class_handle;
            int                     pri;
            int                     qlimit;
            int                     flags;
    };
    
    struct priq_add_filter {
            struct priq_interface   iface;
            u_int32_t               class_handle;
            struct flow_filter      filter;
    
            u_long                  filter_handle;  /* return value */
    };
    
    struct priq_delete_filter {
            struct priq_interface   iface;
            u_long                  filter_handle;
    };
    #endif /* ALTQ3_COMPAT */
    
    struct priq_classstats {
            u_int32_t               class_handle;
    
           u_int                   qlength;
           u_int                   qlimit;
           u_int                   period;
           struct pktcntr          xmitcnt;  /* transmitted packet counter */
           struct pktcntr          dropcnt;  /* dropped packet counter */
   
           /* red and rio related info */
           int                     qtype;
           struct redstats         red[3]; /* rio has 3 red stats */
   };
   
   #ifdef ALTQ3_COMPAT
   struct priq_class_stats {
           struct priq_interface   iface;
           int                     maxpri;   /* in/out */
   
           struct priq_classstats  *stats;   /* pointer to stats array */
   };
   
   #define PRIQ_IF_ATTACH          _IOW('Q', 1, struct priq_interface)
   #define PRIQ_IF_DETACH          _IOW('Q', 2, struct priq_interface)
   #define PRIQ_ENABLE             _IOW('Q', 3, struct priq_interface)
   #define PRIQ_DISABLE            _IOW('Q', 4, struct priq_interface)
   #define PRIQ_CLEAR              _IOW('Q', 5, struct priq_interface)
   #define PRIQ_ADD_CLASS          _IOWR('Q', 7, struct priq_add_class)
   #define PRIQ_DEL_CLASS          _IOW('Q', 8, struct priq_delete_class)
   #define PRIQ_MOD_CLASS          _IOW('Q', 9, struct priq_modify_class)
   #define PRIQ_ADD_FILTER         _IOWR('Q', 10, struct priq_add_filter)
   #define PRIQ_DEL_FILTER         _IOW('Q', 11, struct priq_delete_filter)
   #define PRIQ_GETSTATS           _IOWR('Q', 12, struct priq_class_stats)
   
   #endif /* ALTQ3_COMPAT */
   
   #ifdef _KERNEL
   
   struct priq_class {
           u_int32_t       cl_handle;      /* class handle */
           class_queue_t   *cl_q;          /* class queue structure */
           struct red      *cl_red;        /* RED state */
           int             cl_pri;         /* priority */
           int             cl_flags;       /* class flags */
           struct priq_if  *cl_pif;        /* back pointer to pif */
           struct altq_pktattr *cl_pktattr; /* saved header used by ECN */
   
           /* statistics */
           u_int           cl_period;      /* backlog period */
           struct pktcntr  cl_xmitcnt;     /* transmitted packet counter */
           struct pktcntr  cl_dropcnt;     /* dropped packet counter */
   };
   
   /*
    * priq interface state
    */
   struct priq_if {
           struct priq_if          *pif_next;      /* interface state list */
           struct ifaltq           *pif_ifq;       /* backpointer to ifaltq */
           u_int                   pif_bandwidth;  /* link bandwidth in bps */
           int                     pif_maxpri;     /* max priority in use */
           struct priq_class       *pif_default;   /* default class */
           struct priq_class       *pif_classes[PRIQ_MAXPRI]; /* classes */
   #ifdef ALTQ3_CLFIER_COMPAT
           struct acc_classifier   pif_classifier; /* classifier */
   #endif
   };
   
   #endif /* _KERNEL */
   
   #ifdef __cplusplus
   }
   #endif
   
   #endif /* _ALTQ_ALTQ_PRIQ_H_ */

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