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, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28 29 /* 30 * Copyright (c) 2008 The DragonFly Project. All rights reserved. 31 * 32 * This code is derived from software contributed to The DragonFly Project 33 * by Matthew Dillon <[email protected]> 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 * 39 * 1. Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * 2. Redistributions in binary form must reproduce the above copyright 42 * notice, this list of conditions and the following disclaimer in 43 * the documentation and/or other materials provided with the 44 * distribution. 45 * 3. Neither the name of The DragonFly Project nor the names of its 46 * contributors may be used to endorse or promote products derived 47 * from this software without specific, prior written permission. 48 * 49 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 50 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 51 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 52 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 53 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 54 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 55 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 56 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 57 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 58 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 59 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 60 * SUCH DAMAGE. 61 * 62 * $DragonFly: src/sys/net/altq/altq_fairq.h,v 1.1 2008/04/06 18:58:15 dillon Exp $ 63 */ 64 65 #ifndef _NET_PKTSCHED_PKTSCHED_FAIRQ_H_ 66 #define _NET_PKTSCHED_PKTSCHED_FAIRQ_H_ 67 68 #ifdef PRIVATE 69 #include <net/pktsched/pktsched.h> 70 #include <net/pktsched/pktsched_rmclass.h> 71 #include <net/classq/classq.h> 72 #include <net/classq/classq_red.h> 73 #include <net/classq/classq_rio.h> 74 #include <net/classq/classq_blue.h> 75 #include <net/classq/classq_sfb.h> 76 77 #ifdef __cplusplus 78 extern "C" { 79 #endif 80 81 #define FAIRQ_MAX_BUCKETS 2048 /* maximum number of sorting buckets */ 82 #define FAIRQ_MAXPRI RM_MAXPRIO 83 #define FAIRQ_BITMAP_WIDTH (sizeof (fairq_bitmap_t) * 8) 84 #define FAIRQ_BITMAP_MASK (FAIRQ_BITMAP_WIDTH - 1) 85 86 /* fairq class flags */ 87 #define FARF_RED 0x0001 /* use RED */ 88 #define FARF_ECN 0x0002 /* use ECN with RED/BLUE/SFB */ 89 #define FARF_RIO 0x0004 /* use RIO */ 90 #define FARF_CLEARDSCP 0x0010 /* clear diffserv codepoint */ 91 #define FARF_BLUE 0x0100 /* use BLUE */ 92 #define FARF_SFB 0x0200 /* use SFB */ 93 #define FARF_FLOWCTL 0x0400 /* enable flow control advisories */ 94 #define FARF_DEFAULTCLASS 0x1000 /* default class */ 95 #ifdef BSD_KERNEL_PRIVATE 96 #define FARF_HAS_PACKETS 0x2000 /* might have queued packets */ 97 #define FARF_LAZY 0x10000000 /* on-demand resource allocation */ 98 #endif /* BSD_KERNEL_PRIVATE */ 99 100 #define FARF_USERFLAGS \ 101 (FARF_RED | FARF_ECN | FARF_RIO | FARF_CLEARDSCP | \ 102 FARF_BLUE | FARF_SFB | FARF_FLOWCTL | FARF_DEFAULTCLASS) 103 104 #ifdef BSD_KERNEL_PRIVATE 105 #define FARF_BITS \ 106 "\020\1RED\2ECN\3RIO\5CLEARDSCP\11BLUE\12SFB\13FLOWCTL\15DEFAULT" \ 107 "\16HASPKTS\35LAZY" 108 #else 109 #define FARF_BITS \ 110 "\020\1RED\2ECN\3RIO\5CLEARDSCP\11BLUE\12SFB\13FLOWCTL\15DEFAULT" \ 111 "\16HASPKTS" 112 #endif /* !BSD_KERNEL_PRIVATE */ 113 114 typedef u_int32_t fairq_bitmap_t; 115 116 struct fairq_classstats { 117 u_int32_t class_handle; 118 u_int32_t priority; 119 120 u_int32_t qlength; 121 u_int32_t qlimit; 122 struct pktcntr xmit_cnt; /* transmitted packet counter */ 123 struct pktcntr drop_cnt; /* dropped packet counter */ 124 125 /* RED, RIO, BLUE, SFB related info */ 126 classq_type_t qtype; 127 union { 128 /* RIO has 3 red stats */ 129 struct red_stats red[RIO_NDROPPREC]; 130 struct blue_stats blue; 131 struct sfb_stats sfb; 132 }; 133 classq_state_t qstate; 134 }; 135 136 #ifdef __cplusplus 137 } 138 #endif 139 #endif /* PRIVATE */ 140 #endif /* _NET_PKTSCHED_PKTSCHED_FAIRQ_H_ */ 141