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141 lines
5.5 KiB
C
141 lines
5.5 KiB
C
/*
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* Copyright (c) 2011-2016 Apple Inc. All rights reserved.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
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*
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* This file contains Original Code and/or Modifications of Original Code
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* as defined in and that are subject to the Apple Public Source License
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* Version 2.0 (the 'License'). You may not use this file except in
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* compliance with the License. The rights granted to you under the License
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* may not be used to create, or enable the creation or redistribution of,
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* unlawful or unlicensed copies of an Apple operating system, or to
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* circumvent, violate, or enable the circumvention or violation of, any
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* terms of an Apple operating system software license agreement.
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*
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* Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this file.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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* Please see the License for the specific language governing rights and
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* limitations under the License.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
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*/
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/*
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* Copyright (c) 2008 The DragonFly Project. All rights reserved.
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*
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* This code is derived from software contributed to The DragonFly Project
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* by Matthew Dillon <dillon@backplane.com>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name of The DragonFly Project nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific, prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $DragonFly: src/sys/net/altq/altq_fairq.h,v 1.1 2008/04/06 18:58:15 dillon Exp $
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*/
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#ifndef _NET_PKTSCHED_PKTSCHED_FAIRQ_H_
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#define _NET_PKTSCHED_PKTSCHED_FAIRQ_H_
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#ifdef PRIVATE
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#include <net/pktsched/pktsched.h>
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#include <net/pktsched/pktsched_rmclass.h>
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#include <net/classq/classq.h>
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#include <net/classq/classq_red.h>
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#include <net/classq/classq_rio.h>
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#include <net/classq/classq_blue.h>
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#include <net/classq/classq_sfb.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define FAIRQ_MAX_BUCKETS 2048 /* maximum number of sorting buckets */
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#define FAIRQ_MAXPRI RM_MAXPRIO
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#define FAIRQ_BITMAP_WIDTH (sizeof (fairq_bitmap_t) * 8)
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#define FAIRQ_BITMAP_MASK (FAIRQ_BITMAP_WIDTH - 1)
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/* fairq class flags */
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#define FARF_RED 0x0001 /* use RED */
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#define FARF_ECN 0x0002 /* use ECN with RED/BLUE/SFB */
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#define FARF_RIO 0x0004 /* use RIO */
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#define FARF_CLEARDSCP 0x0010 /* clear diffserv codepoint */
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#define FARF_BLUE 0x0100 /* use BLUE */
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#define FARF_SFB 0x0200 /* use SFB */
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#define FARF_FLOWCTL 0x0400 /* enable flow control advisories */
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#define FARF_DEFAULTCLASS 0x1000 /* default class */
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#ifdef BSD_KERNEL_PRIVATE
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#define FARF_HAS_PACKETS 0x2000 /* might have queued packets */
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#define FARF_LAZY 0x10000000 /* on-demand resource allocation */
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#endif /* BSD_KERNEL_PRIVATE */
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#define FARF_USERFLAGS \
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(FARF_RED | FARF_ECN | FARF_RIO | FARF_CLEARDSCP | \
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FARF_BLUE | FARF_SFB | FARF_FLOWCTL | FARF_DEFAULTCLASS)
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#ifdef BSD_KERNEL_PRIVATE
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#define FARF_BITS \
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"\020\1RED\2ECN\3RIO\5CLEARDSCP\11BLUE\12SFB\13FLOWCTL\15DEFAULT" \
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"\16HASPKTS\35LAZY"
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#else
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#define FARF_BITS \
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"\020\1RED\2ECN\3RIO\5CLEARDSCP\11BLUE\12SFB\13FLOWCTL\15DEFAULT" \
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"\16HASPKTS"
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#endif /* !BSD_KERNEL_PRIVATE */
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typedef u_int32_t fairq_bitmap_t;
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struct fairq_classstats {
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u_int32_t class_handle;
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u_int32_t priority;
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u_int32_t qlength;
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u_int32_t qlimit;
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struct pktcntr xmit_cnt; /* transmitted packet counter */
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struct pktcntr drop_cnt; /* dropped packet counter */
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/* RED, RIO, BLUE, SFB related info */
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classq_type_t qtype;
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union {
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/* RIO has 3 red stats */
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struct red_stats red[RIO_NDROPPREC];
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struct blue_stats blue;
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struct sfb_stats sfb;
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};
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classq_state_t qstate;
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};
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#ifdef __cplusplus
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}
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#endif
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#endif /* PRIVATE */
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#endif /* _NET_PKTSCHED_PKTSCHED_FAIRQ_H_ */
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