1/* 2 * Copyright (c) 2011-2012 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/* $NetBSD: altq_blue.h,v 1.5 2006/10/12 19:59:08 peter Exp $ */ 30/* $KAME: altq_blue.h,v 1.7 2002/11/29 04:36:22 kjc Exp $ */ 31 32/* 33 * Copyright (C) 1997-2002 34 * Sony Computer Science Laboratories Inc. All rights reserved. 35 * 36 * Redistribution and use in source and binary forms, with or without 37 * modification, are permitted provided that the following conditions 38 * are met: 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 the 43 * documentation and/or other materials provided with the distribution. 44 * 45 * THIS SOFTWARE IS PROVIDED BY SONY CSL AND CONTRIBUTORS ``AS IS'' AND 46 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 47 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 48 * ARE DISCLAIMED. IN NO EVENT SHALL SONY CSL OR CONTRIBUTORS BE LIABLE 49 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 50 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 51 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 52 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 53 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 54 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 55 * SUCH DAMAGE. 56 */ 57 58#ifndef _NET_CLASSQ_CLASSQ_BLUE_H_ 59#define _NET_CLASSQ_CLASSQ_BLUE_H_ 60 61#ifdef PRIVATE 62#ifdef BSD_KERNEL_PRIVATE 63#include <net/classq/if_classq.h> 64#endif /* BSD_KERNEL_PRIVATE */ 65 66#ifdef __cplusplus 67extern "C" { 68#endif 69 70struct blue_stats { 71 int32_t q_pmark; 72 u_int32_t _pad; 73 u_int64_t drop_forced; 74 u_int64_t drop_unforced; 75 u_int64_t marked_packets; 76}; 77 78#ifdef BSD_KERNEL_PRIVATE 79/* blue flags */ 80#define BLUEF_ECN4 0x01 /* use packet marking for IPv4 packets */ 81#define BLUEF_ECN6 0x02 /* use packet marking for IPv6 packets */ 82#define BLUEF_ECN (BLUEF_ECN4 | BLUEF_ECN6) 83 84#define BLUEF_USERFLAGS \ 85 (BLUEF_ECN4 | BLUEF_ECN6) 86 87typedef struct blue { 88 u_int32_t blue_flags; /* blue flags */ 89 90 /* blue parameters */ 91 int32_t blue_pmark; /* 0-1000 (mark probability*10000) */ 92 int32_t blue_max_pmark; /* sets precision of marking probability */ 93 u_int32_t blue_hold_time; /* hold time in usec */ 94 struct ifnet *blue_ifp; /* back pointer to ifnet */ 95 96 /* variables for internal use */ 97 u_int32_t blue_idle; /* queue was empty */ 98 struct timeval blue_last; /* timestamp when the queue becomes idle */ 99 100 /* statistics */ 101 struct { 102 struct pktcntr xmit_cnt; 103 struct pktcntr drop_cnt; 104 u_int64_t drop_forced; 105 u_int64_t drop_unforced; 106 u_int64_t marked_packets; 107 } blue_stats; 108} blue_t; 109 110extern void blue_init(void); 111extern struct blue *blue_alloc(struct ifnet *, u_int32_t, u_int32_t, u_int32_t); 112extern void blue_destroy(struct blue *); 113extern int blue_addq(struct blue *, class_queue_t *, struct mbuf *, 114 struct pf_mtag *); 115extern struct mbuf *blue_getq(struct blue *, class_queue_t *); 116extern void blue_purgeq(struct blue *, class_queue_t *, u_int32_t, 117 u_int32_t *, u_int32_t *); 118extern void blue_getstats(struct blue *, struct blue_stats *); 119extern void blue_updateq(struct blue *, cqev_t); 120extern int blue_suspendq(struct blue *, class_queue_t *, boolean_t); 121#endif /* BSD_KERNEL_PRIVATE */ 122 123#ifdef __cplusplus 124} 125#endif 126#endif /* PRIVATE */ 127#endif /* _NET_CLASSQ_CLASSQ_BLUE_H_ */ 128