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

     /*      $NetBSD: altq_blue.h,v 1.5 2006/10/12 19:59:08 peter Exp $      */
     /*      $KAME: altq_blue.h,v 1.7 2002/11/29 04:36:22 kjc Exp $  */
     
     /*
      * Copyright (C) 1997-2002
      *      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_BLUE_H_
    #define _ALTQ_ALTQ_BLUE_H_
    
    #include <altq/altq_classq.h>
    
    struct blue_interface {
            char    blue_ifname[IFNAMSIZ];
    };
    
    struct blue_stats {
            struct blue_interface iface;
            int q_len;
            int q_limit;
            int q_pmark;
            u_quad_t xmit_packets;
            u_quad_t xmit_bytes;
            u_quad_t drop_packets;
            u_quad_t drop_bytes;
            u_quad_t drop_forced;
            u_quad_t drop_unforced;
            u_quad_t marked_packets;
    };
    
    struct blue_conf {
            struct blue_interface iface;
            int blue_limit;
            int blue_max_pmark;
            int blue_hold_time;
            int blue_pkttime;       /* average packet time in usec */
            int blue_flags;         /* see below */
    };
    
    /* blue flags */
    #define BLUEF_ECN4      0x01    /* use packet marking for IPv4 packets */
    #define BLUEF_ECN6      0x02    /* use packet marking for IPv6 packets */
    #define BLUEF_ECN       (BLUEF_ECN4 | BLUEF_ECN6)
    
    /*
     * IOCTLs for BLUE
     */
    #define BLUE_IF_ATTACH          _IOW('Q', 1, struct blue_interface)
    #define BLUE_IF_DETACH          _IOW('Q', 2, struct blue_interface)
    #define BLUE_ENABLE             _IOW('Q', 3, struct blue_interface)
    #define BLUE_DISABLE            _IOW('Q', 4, struct blue_interface)
    #define BLUE_CONFIG             _IOWR('Q', 6, struct blue_conf)
    #define BLUE_GETSTATS           _IOWR('Q', 12, struct blue_stats)
    
    #ifdef _KERNEL
    
    typedef struct blue {
            int blue_pkttime;       /* average packet time in micro sec
                                       used for idle calibration */
            int blue_flags;         /* blue flags */
    
            /* blue parameters */
            int blue_pmark;         /* 0-1000 (mark probability*10000) */
            int blue_max_pmark;     /* sets precision of marking probability */
            int blue_hold_time;     /* hold time in usec */
    
            int blue_idle;          /* queue was empty */
            struct timeval blue_last;  /* timestamp when the queue becomes idle */
    
            struct {
                    u_quad_t xmit_packets;
                    u_quad_t xmit_bytes;
                    u_quad_t drop_packets;
                    u_quad_t drop_bytes;
                    u_quad_t drop_forced;
                    u_quad_t drop_unforced;
                    u_quad_t marked_packets;
           } blue_stats;
   } blue_t;
   
   typedef struct blue_queue {
           struct blue_queue *rq_next;     /* next blue_state in the list */
           struct ifaltq *rq_ifq;          /* backpointer to ifaltq */
   
           class_queue_t *rq_q;
   
           blue_t *rq_blue;
   } blue_queue_t;
   
   extern int blue_init(blue_t *, int, int, int, int);
   extern int blue_addq(blue_t *, class_queue_t *, struct mbuf *,
                        struct altq_pktattr *);
   extern struct mbuf *blue_getq(blue_t *, class_queue_t *);
   
   #endif /* _KERNEL */
   
   #endif /* _ALTQ_ALTQ_BLUE_H_ */

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