bsd/net/pktsched/pktsched_priq.h

   1 /*
   2  * Copyright (c) 2011-2016 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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  23  * Please see the License for the specific language governing rights and
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  27  */
  28
  29 /*      $NetBSD: altq_priq.h,v 1.7 2006/10/12 19:59:08 peter Exp $      */
  30 /*      $KAME: altq_priq.h,v 1.7 2003/10/03 05:05:15 kjc Exp $  */
  31 /*
  32  * Copyright (C) 2000-2003
  33  *      Sony Computer Science Laboratories Inc.  All rights reserved.
  34  *
  35  * Redistribution and use in source and binary forms, with or without
  36  * modification, are permitted provided that the following conditions
  37  * are met:
  38  * 1. Redistributions of source code must retain the above copyright
  39  *    notice, this list of conditions and the following disclaimer.
  40  * 2. Redistributions in binary form must reproduce the above copyright
  41  *    notice, this list of conditions and the following disclaimer in the
  42  *    documentation and/or other materials provided with the distribution.
  43  *
  44  * THIS SOFTWARE IS PROVIDED BY SONY CSL AND CONTRIBUTORS ``AS IS'' AND
  45  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  46  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  47  * ARE DISCLAIMED.  IN NO EVENT SHALL SONY CSL OR CONTRIBUTORS BE LIABLE
  48  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  49  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  50  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  51  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  52  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  53  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  54  * SUCH DAMAGE.
  55  */
  56
  57 #ifndef _NET_PKTSCHED_PKTSCHED_PRIQ_H_
  58 #define _NET_PKTSCHED_PKTSCHED_PRIQ_H_
  59
  60 #ifdef PRIVATE
  61 #include <net/pktsched/pktsched.h>
  62 #include <net/classq/classq.h>
  63 #include <net/classq/classq_red.h>
  64 #include <net/classq/classq_rio.h>
  65 #include <net/classq/classq_blue.h>
  66 #include <net/classq/classq_sfb.h>
  67
  68 #ifdef __cplusplus
  69 extern "C" {
  70 #endif
  71
  72 #define PRIQ_MAXPRI     16      /* upper limit of the number of priorities */
  73
  74 /* priq class flags */
  75 #define PRCF_RED                0x0001  /* use RED */
  76 #define PRCF_ECN                0x0002  /* use ECN with RED/BLUE/SFB */
  77 #define PRCF_RIO                0x0004  /* use RIO */
  78 #define PRCF_CLEARDSCP          0x0010  /* clear diffserv codepoint */
  79 #define PRCF_BLUE               0x0100  /* use BLUE */
  80 #define PRCF_SFB                0x0200  /* use SFB */
  81 #define PRCF_FLOWCTL            0x0400  /* enable flow control advisories */
  82 #define PRCF_DEFAULTCLASS       0x1000  /* default class */
  83 #ifdef BSD_KERNEL_PRIVATE
  84 #define PRCF_LAZY               0x10000000 /* on-demand resource allocation */
  85 #endif /* BSD_KERNEL_PRIVATE */
  86
  87 #define PRCF_USERFLAGS                                                  \
  88         (PRCF_RED | PRCF_ECN | PRCF_RIO | PRCF_CLEARDSCP | PRCF_BLUE |  \
  89         PRCF_SFB | PRCF_FLOWCTL | PRCF_DEFAULTCLASS)
  90
  91 #ifdef BSD_KERNEL_PRIVATE
  92 #define PRCF_BITS \
  93         "\020\1RED\2ECN\3RIO\5CLEARDSCP\11BLUE\12SFB\13FLOWCTL\15DEFAULT" \
  94         "\35LAZY"
  95 #else
  96 #define PRCF_BITS \
  97         "\020\1RED\2ECN\3RIO\5CLEARDSCP\11BLUE\12SFB\13FLOWCTL\15DEFAULT"
  98 #endif /* !BSD_KERNEL_PRIVATE */
  99
 100 struct priq_classstats {
 101         u_int32_t               class_handle;
 102         u_int32_t               priority;
 103
 104         u_int32_t               qlength;
 105         u_int32_t               qlimit;
 106         u_int32_t               period;
 107         struct pktcntr          xmitcnt;  /* transmitted packet counter */
 108         struct pktcntr          dropcnt;  /* dropped packet counter */
 109
 110         /* RED, RIO, BLUE, SFB related info */
 111         classq_type_t           qtype;
 112         union {
 113                 /* RIO has 3 red stats */
 114                 struct red_stats        red[RIO_NDROPPREC];
 115                 struct blue_stats       blue;
 116                 struct sfb_stats        sfb;
 117         };
 118         classq_state_t          qstate;
 119 };
 120
 121 #ifdef __cplusplus
 122 }
 123 #endif
 124 #endif /* PRIVATE */
 125 #endif /* _NET_PKTSCHED_PKTSCHED_PRIQ_H_ */