altq_rio.h revision 1.2.2.2
1 1.2.2.2 bouyer /* $NetBSD: altq_rio.h,v 1.2.2.2 2001/01/05 17:39:37 bouyer Exp $ */ 2 1.2.2.2 bouyer /* $KAME: altq_rio.h,v 1.5 2000/12/14 08:12:46 thorpej Exp $ */ 3 1.2.2.2 bouyer 4 1.2.2.2 bouyer /* 5 1.2.2.2 bouyer * Copyright (C) 1998-2000 6 1.2.2.2 bouyer * Sony Computer Science Laboratories Inc. All rights reserved. 7 1.2.2.2 bouyer * 8 1.2.2.2 bouyer * Redistribution and use in source and binary forms, with or without 9 1.2.2.2 bouyer * modification, are permitted provided that the following conditions 10 1.2.2.2 bouyer * are met: 11 1.2.2.2 bouyer * 1. Redistributions of source code must retain the above copyright 12 1.2.2.2 bouyer * notice, this list of conditions and the following disclaimer. 13 1.2.2.2 bouyer * 2. Redistributions in binary form must reproduce the above copyright 14 1.2.2.2 bouyer * notice, this list of conditions and the following disclaimer in the 15 1.2.2.2 bouyer * documentation and/or other materials provided with the distribution. 16 1.2.2.2 bouyer * 17 1.2.2.2 bouyer * THIS SOFTWARE IS PROVIDED BY SONY CSL AND CONTRIBUTORS ``AS IS'' AND 18 1.2.2.2 bouyer * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 1.2.2.2 bouyer * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 1.2.2.2 bouyer * ARE DISCLAIMED. IN NO EVENT SHALL SONY CSL OR CONTRIBUTORS BE LIABLE 21 1.2.2.2 bouyer * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 1.2.2.2 bouyer * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 1.2.2.2 bouyer * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 1.2.2.2 bouyer * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 1.2.2.2 bouyer * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 1.2.2.2 bouyer * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 1.2.2.2 bouyer * SUCH DAMAGE. 28 1.2.2.2 bouyer */ 29 1.2.2.2 bouyer 30 1.2.2.2 bouyer #ifndef _ALTQ_ALTQ_RIO_H_ 31 1.2.2.2 bouyer #define _ALTQ_ALTQ_RIO_H_ 32 1.2.2.2 bouyer 33 1.2.2.2 bouyer #include <altq/altq_classq.h> 34 1.2.2.2 bouyer 35 1.2.2.2 bouyer /* 36 1.2.2.2 bouyer * RIO: RED with IN/OUT bit 37 1.2.2.2 bouyer * (extended to support more than 2 drop precedence values) 38 1.2.2.2 bouyer */ 39 1.2.2.2 bouyer #define RIO_NDROPPREC 3 /* number of drop precedence values */ 40 1.2.2.2 bouyer 41 1.2.2.2 bouyer struct rio_interface { 42 1.2.2.2 bouyer char rio_ifname[IFNAMSIZ]; 43 1.2.2.2 bouyer }; 44 1.2.2.2 bouyer 45 1.2.2.2 bouyer struct rio_stats { 46 1.2.2.2 bouyer struct rio_interface iface; 47 1.2.2.2 bouyer int q_len[RIO_NDROPPREC]; 48 1.2.2.2 bouyer struct redstats q_stats[RIO_NDROPPREC]; 49 1.2.2.2 bouyer 50 1.2.2.2 bouyer /* static red parameters */ 51 1.2.2.2 bouyer int q_limit; 52 1.2.2.2 bouyer int weight; 53 1.2.2.2 bouyer int flags; 54 1.2.2.2 bouyer struct redparams q_params[RIO_NDROPPREC]; 55 1.2.2.2 bouyer }; 56 1.2.2.2 bouyer 57 1.2.2.2 bouyer struct rio_conf { 58 1.2.2.2 bouyer struct rio_interface iface; 59 1.2.2.2 bouyer struct redparams q_params[RIO_NDROPPREC]; 60 1.2.2.2 bouyer int rio_weight; /* weight for EWMA */ 61 1.2.2.2 bouyer int rio_limit; /* max queue length */ 62 1.2.2.2 bouyer int rio_pkttime; /* average packet time in usec */ 63 1.2.2.2 bouyer int rio_flags; /* see below */ 64 1.2.2.2 bouyer }; 65 1.2.2.2 bouyer 66 1.2.2.2 bouyer /* rio flags */ 67 1.2.2.2 bouyer #define RIOF_ECN4 0x01 /* use packet marking for IPv4 packets */ 68 1.2.2.2 bouyer #define RIOF_ECN6 0x02 /* use packet marking for IPv6 packets */ 69 1.2.2.2 bouyer #define RIOF_ECN (RIOF_ECN4 | RIOF_ECN6) 70 1.2.2.2 bouyer #define RIOF_CLEARDSCP 0x200 /* clear diffserv codepoint */ 71 1.2.2.2 bouyer 72 1.2.2.2 bouyer /* 73 1.2.2.2 bouyer * IOCTLs for RIO 74 1.2.2.2 bouyer */ 75 1.2.2.2 bouyer #define RIO_IF_ATTACH _IOW('Q', 1, struct rio_interface) 76 1.2.2.2 bouyer #define RIO_IF_DETACH _IOW('Q', 2, struct rio_interface) 77 1.2.2.2 bouyer #define RIO_ENABLE _IOW('Q', 3, struct rio_interface) 78 1.2.2.2 bouyer #define RIO_DISABLE _IOW('Q', 4, struct rio_interface) 79 1.2.2.2 bouyer #define RIO_CONFIG _IOWR('Q', 6, struct rio_conf) 80 1.2.2.2 bouyer #define RIO_GETSTATS _IOWR('Q', 12, struct rio_stats) 81 1.2.2.2 bouyer #define RIO_SETDEFAULTS _IOW('Q', 30, struct redparams[RIO_NDROPPREC]) 82 1.2.2.2 bouyer 83 1.2.2.2 bouyer #ifdef _KERNEL 84 1.2.2.2 bouyer 85 1.2.2.2 bouyer typedef struct rio { 86 1.2.2.2 bouyer /* per drop precedence structure */ 87 1.2.2.2 bouyer struct dropprec_state { 88 1.2.2.2 bouyer /* red parameters */ 89 1.2.2.2 bouyer int inv_pmax; /* inverse of max drop probability */ 90 1.2.2.2 bouyer int th_min; /* red min threshold */ 91 1.2.2.2 bouyer int th_max; /* red max threshold */ 92 1.2.2.2 bouyer 93 1.2.2.2 bouyer /* variables for internal use */ 94 1.2.2.2 bouyer int th_min_s; /* th_min scaled by avgshift */ 95 1.2.2.2 bouyer int th_max_s; /* th_max scaled by avgshift */ 96 1.2.2.2 bouyer int probd; /* drop probability denominator */ 97 1.2.2.2 bouyer 98 1.2.2.2 bouyer int qlen; /* queue length */ 99 1.2.2.2 bouyer int avg; /* (scaled) queue length average */ 100 1.2.2.2 bouyer int count; /* packet count since the last dropped/marked 101 1.2.2.2 bouyer packet */ 102 1.2.2.2 bouyer int idle; /* queue was empty */ 103 1.2.2.2 bouyer int old; /* avg is above th_min */ 104 1.2.2.2 bouyer struct timeval last; /* timestamp when queue becomes idle */ 105 1.2.2.2 bouyer } rio_precstate[RIO_NDROPPREC]; 106 1.2.2.2 bouyer 107 1.2.2.2 bouyer int rio_wshift; /* log(red_weight) */ 108 1.2.2.2 bouyer int rio_weight; /* weight for EWMA */ 109 1.2.2.2 bouyer struct wtab *rio_wtab; /* weight table */ 110 1.2.2.2 bouyer 111 1.2.2.2 bouyer int rio_pkttime; /* average packet time in micro sec 112 1.2.2.2 bouyer used for idle calibration */ 113 1.2.2.2 bouyer int rio_flags; /* rio flags */ 114 1.2.2.2 bouyer 115 1.2.2.2 bouyer u_int8_t rio_codepoint; /* codepoint value to tag packets */ 116 1.2.2.2 bouyer u_int8_t rio_codepointmask; /* codepoint mask bits */ 117 1.2.2.2 bouyer 118 1.2.2.2 bouyer struct redstats q_stats[RIO_NDROPPREC]; /* statistics */ 119 1.2.2.2 bouyer } rio_t; 120 1.2.2.2 bouyer 121 1.2.2.2 bouyer typedef struct rio_queue { 122 1.2.2.2 bouyer struct rio_queue *rq_next; /* next red_state in the list */ 123 1.2.2.2 bouyer struct ifaltq *rq_ifq; /* backpointer to ifaltq */ 124 1.2.2.2 bouyer 125 1.2.2.2 bouyer class_queue_t *rq_q; 126 1.2.2.2 bouyer 127 1.2.2.2 bouyer rio_t *rq_rio; 128 1.2.2.2 bouyer } rio_queue_t; 129 1.2.2.2 bouyer 130 1.2.2.2 bouyer extern rio_t *rio_alloc __P((int, struct redparams *, int, int)); 131 1.2.2.2 bouyer extern void rio_destroy __P((rio_t *)); 132 1.2.2.2 bouyer extern void rio_getstats __P((rio_t *, struct redstats *)); 133 1.2.2.2 bouyer extern int rio_addq __P((rio_t *, class_queue_t *, struct mbuf *, 134 1.2.2.2 bouyer struct altq_pktattr *)); 135 1.2.2.2 bouyer extern struct mbuf *rio_getq __P((rio_t *, class_queue_t *)); 136 1.2.2.2 bouyer extern int rio_set_meter __P((rio_t *, int, int, int)); 137 1.2.2.2 bouyer 138 1.2.2.2 bouyer #endif /* _KERNEL */ 139 1.2.2.2 bouyer 140 1.2.2.2 bouyer #endif /* _ALTQ_ALTQ_RIO_H_ */ 141
Indexes created Thu Oct 23 22:10:10 GMT 2025