altq_fifoq.h

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    1 /*      $NetBSD: altq_fifoq.h,v 1.3 2004/02/13 18:02:05 wiz Exp $       */
    2 /*      $KAME: altq_fifoq.h,v 1.6 2000/12/14 08:12:45 thorpej Exp $     */
    3 
    4 /*
    5  * Copyright (C) 1997-2000
    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_FIFOQ_H_
   31 #define _ALTQ_ALTQ_FIFOQ_H_
   32 
   33 typedef struct fifoq_state {
   34         struct fifoq_state *q_next;     /* next fifoq_state in the list */
   35         struct ifaltq *q_ifq;           /* backpointer to ifaltq */
   36 
   37         struct mbuf *q_head;            /* head of queue */
   38         struct mbuf *q_tail;            /* tail of queue */
   39         int     q_len;                  /* queue length */
   40         int     q_limit;                /* max queue length */
   41 
   42         /* statistics */
   43         struct {
   44                 struct pktcntr  xmit_cnt;
   45                 struct pktcntr  drop_cnt;
   46                 u_int           period;
   47         } q_stats;
   48 } fifoq_state_t;
   49 
   50 struct fifoq_interface {
   51         char    fifoq_ifname[IFNAMSIZ];
   52 };
   53 
   54 struct fifoq_getstats {
   55         struct fifoq_interface iface;
   56         int             q_len;
   57         int             q_limit;
   58         struct pktcntr  xmit_cnt;
   59         struct pktcntr  drop_cnt;
   60         u_int           period;
   61 };
   62 
   63 struct fifoq_conf {
   64         struct fifoq_interface iface;
   65         int fifoq_limit;
   66 };
   67 
   68 #define FIFOQ_LIMIT     50      /* default max queue length */
   69 
   70 /* 
   71  * IOCTLs for FIFOQ
   72  */
   73 #define FIFOQ_IF_ATTACH         _IOW('Q', 1, struct fifoq_interface)
   74 #define FIFOQ_IF_DETACH         _IOW('Q', 2, struct fifoq_interface)
   75 #define FIFOQ_ENABLE            _IOW('Q', 3, struct fifoq_interface)
   76 #define FIFOQ_DISABLE           _IOW('Q', 4, struct fifoq_interface)
   77 #define FIFOQ_CONFIG            _IOWR('Q', 6, struct fifoq_conf)
   78 #define FIFOQ_GETSTATS          _IOWR('Q', 12, struct fifoq_getstats)
   79 
   80 #endif /* _ALTQ_ALTQ_FIFOQ_H_ */

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

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