1 /*- 2 * Copyright (C) 2000-2003 3 * Sony Computer Science Laboratories Inc. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY SONY CSL AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL SONY CSL OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $KAME: altq_priq.h,v 1.7 2003/10/03 05:05:15 kjc Exp $ 27 * $FreeBSD$ 28 */ 29 30 #ifndef _ALTQ_ALTQ_PRIQ_H_ 31 #define _ALTQ_ALTQ_PRIQ_H_ 32 33 #include <net/altq/altq.h> 34 #include <net/altq/altq_classq.h> 35 #include <net/altq/altq_codel.h> 36 #include <net/altq/altq_red.h> 37 #include <net/altq/altq_rio.h> 38 39 #ifdef __cplusplus 40 extern "C" { 41 #endif 42 43 #define PRIQ_MAXPRI 16 /* upper limit of the number of priorities */ 44 45 /* priq class flags */ 46 #define PRCF_RED 0x0001 /* use RED */ 47 #define PRCF_ECN 0x0002 /* use RED/ECN */ 48 #define PRCF_RIO 0x0004 /* use RIO */ 49 #define PRCF_CODEL 0x0008 /* use CoDel */ 50 #define PRCF_CLEARDSCP 0x0010 /* clear diffserv codepoint */ 51 #define PRCF_DEFAULTCLASS 0x1000 /* default class */ 52 53 /* special class handles */ 54 #define PRIQ_NULLCLASS_HANDLE 0 55 56 struct priq_classstats { 57 u_int32_t class_handle; 58 59 u_int qlength; 60 u_int qlimit; 61 u_int period; 62 struct pktcntr xmitcnt; /* transmitted packet counter */ 63 struct pktcntr dropcnt; /* dropped packet counter */ 64 65 /* codel, red and rio related info */ 66 int qtype; 67 struct redstats red[3]; /* rio has 3 red stats */ 68 struct codel_stats codel; 69 }; 70 71 /* 72 * PRIQ_STATS_VERSION is defined in altq.h to work around issues stemming 73 * from mixing of public-API and internal bits in each scheduler-specific 74 * header. 75 */ 76 77 #ifdef _KERNEL 78 79 struct priq_class { 80 u_int32_t cl_handle; /* class handle */ 81 class_queue_t *cl_q; /* class queue structure */ 82 union { 83 struct red *cl_red; /* RED state */ 84 struct codel *cl_codel; /* CoDel state */ 85 } cl_aqm; 86 #define cl_red cl_aqm.cl_red 87 #define cl_codel cl_aqm.cl_codel 88 int cl_pri; /* priority */ 89 int cl_flags; /* class flags */ 90 struct priq_if *cl_pif; /* back pointer to pif */ 91 struct altq_pktattr *cl_pktattr; /* saved header used by ECN */ 92 93 /* statistics */ 94 u_int cl_period; /* backlog period */ 95 struct pktcntr cl_xmitcnt; /* transmitted packet counter */ 96 struct pktcntr cl_dropcnt; /* dropped packet counter */ 97 }; 98 99 /* 100 * priq interface state 101 */ 102 struct priq_if { 103 struct priq_if *pif_next; /* interface state list */ 104 struct ifaltq *pif_ifq; /* backpointer to ifaltq */ 105 u_int pif_bandwidth; /* link bandwidth in bps */ 106 int pif_maxpri; /* max priority in use */ 107 struct priq_class *pif_default; /* default class */ 108 struct priq_class *pif_classes[PRIQ_MAXPRI]; /* classes */ 109 #ifdef ALTQ3_CLFIER_COMPAT 110 struct acc_classifier pif_classifier; /* classifier */ 111 #endif 112 }; 113 114 #endif /* _KERNEL */ 115 116 #ifdef __cplusplus 117 } 118 #endif 119 120 #endif /* _ALTQ_ALTQ_PRIQ_H_ */ 121