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 */ 28 29 #ifndef _ALTQ_ALTQ_PRIQ_H_ 30 #define _ALTQ_ALTQ_PRIQ_H_ 31 32 #include <net/altq/altq.h> 33 #include <net/altq/altq_classq.h> 34 #include <net/altq/altq_codel.h> 35 #include <net/altq/altq_red.h> 36 #include <net/altq/altq_rio.h> 37 38 #ifdef __cplusplus 39 extern "C" { 40 #endif 41 42 #define PRIQ_MAXPRI 16 /* upper limit of the number of priorities */ 43 44 /* priq class flags */ 45 #define PRCF_RED 0x0001 /* use RED */ 46 #define PRCF_ECN 0x0002 /* use RED/ECN */ 47 #define PRCF_RIO 0x0004 /* use RIO */ 48 #define PRCF_CODEL 0x0008 /* use CoDel */ 49 #define PRCF_CLEARDSCP 0x0010 /* clear diffserv codepoint */ 50 #define PRCF_DEFAULTCLASS 0x1000 /* default class */ 51 52 /* special class handles */ 53 #define PRIQ_NULLCLASS_HANDLE 0 54 55 struct priq_classstats { 56 u_int32_t class_handle; 57 58 u_int qlength; 59 u_int qlimit; 60 u_int period; 61 struct pktcntr xmitcnt; /* transmitted packet counter */ 62 struct pktcntr dropcnt; /* dropped packet counter */ 63 64 /* codel, red and rio related info */ 65 int qtype; 66 struct redstats red[3]; /* rio has 3 red stats */ 67 struct codel_stats codel; 68 }; 69 70 /* 71 * PRIQ_STATS_VERSION is defined in altq.h to work around issues stemming 72 * from mixing of public-API and internal bits in each scheduler-specific 73 * header. 74 */ 75 76 #ifdef _KERNEL 77 78 struct priq_class { 79 u_int32_t cl_handle; /* class handle */ 80 class_queue_t *cl_q; /* class queue structure */ 81 union { 82 struct red *cl_red; /* RED state */ 83 struct codel *cl_codel; /* CoDel state */ 84 } cl_aqm; 85 #define cl_red cl_aqm.cl_red 86 #define cl_codel cl_aqm.cl_codel 87 int cl_pri; /* priority */ 88 int cl_flags; /* class flags */ 89 struct priq_if *cl_pif; /* back pointer to pif */ 90 struct altq_pktattr *cl_pktattr; /* saved header used by ECN */ 91 92 /* statistics */ 93 u_int cl_period; /* backlog period */ 94 struct pktcntr cl_xmitcnt; /* transmitted packet counter */ 95 struct pktcntr cl_dropcnt; /* dropped packet counter */ 96 }; 97 98 /* 99 * priq interface state 100 */ 101 struct priq_if { 102 struct priq_if *pif_next; /* interface state list */ 103 struct ifaltq *pif_ifq; /* backpointer to ifaltq */ 104 u_int pif_bandwidth; /* link bandwidth in bps */ 105 int pif_maxpri; /* max priority in use */ 106 struct priq_class *pif_default; /* default class */ 107 struct priq_class *pif_classes[PRIQ_MAXPRI]; /* classes */ 108 #ifdef ALTQ3_CLFIER_COMPAT 109 struct acc_classifier pif_classifier; /* classifier */ 110 #endif 111 }; 112 113 #endif /* _KERNEL */ 114 115 #ifdef __cplusplus 116 } 117 #endif 118 119 #endif /* _ALTQ_ALTQ_PRIQ_H_ */ 120