mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-14 10:09:48 +00:00
772e66a6fc
discontinued by its initial authors. In FreeBSD the code was already slightly edited during the pf(4) SMP project. It is about to be edited more in the projects/ifnet. Moving out of contrib also allows to remove several hacks to the make glue. Reviewed by: net@
146 lines
4.7 KiB
C
146 lines
4.7 KiB
C
/*-
|
|
* Copyright (C) 1998-2003
|
|
* Sony Computer Science Laboratories Inc. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY SONY CSL AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL SONY CSL OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $KAME: altq_rio.h,v 1.9 2003/07/10 12:07:49 kjc Exp $
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _ALTQ_ALTQ_RIO_H_
|
|
#define _ALTQ_ALTQ_RIO_H_
|
|
|
|
#include <net/altq/altq_classq.h>
|
|
|
|
/*
|
|
* RIO: RED with IN/OUT bit
|
|
* (extended to support more than 2 drop precedence values)
|
|
*/
|
|
#define RIO_NDROPPREC 3 /* number of drop precedence values */
|
|
|
|
#ifdef ALTQ3_COMPAT
|
|
struct rio_interface {
|
|
char rio_ifname[IFNAMSIZ];
|
|
};
|
|
|
|
struct rio_stats {
|
|
struct rio_interface iface;
|
|
int q_len[RIO_NDROPPREC];
|
|
struct redstats q_stats[RIO_NDROPPREC];
|
|
|
|
/* static red parameters */
|
|
int q_limit;
|
|
int weight;
|
|
int flags;
|
|
struct redparams q_params[RIO_NDROPPREC];
|
|
};
|
|
|
|
struct rio_conf {
|
|
struct rio_interface iface;
|
|
struct redparams q_params[RIO_NDROPPREC];
|
|
int rio_weight; /* weight for EWMA */
|
|
int rio_limit; /* max queue length */
|
|
int rio_pkttime; /* average packet time in usec */
|
|
int rio_flags; /* see below */
|
|
};
|
|
#endif /* ALTQ3_COMPAT */
|
|
|
|
/* rio flags */
|
|
#define RIOF_ECN4 0x01 /* use packet marking for IPv4 packets */
|
|
#define RIOF_ECN6 0x02 /* use packet marking for IPv6 packets */
|
|
#define RIOF_ECN (RIOF_ECN4 | RIOF_ECN6)
|
|
#define RIOF_CLEARDSCP 0x200 /* clear diffserv codepoint */
|
|
|
|
#ifdef ALTQ3_COMPAT
|
|
/*
|
|
* IOCTLs for RIO
|
|
*/
|
|
#define RIO_IF_ATTACH _IOW('Q', 1, struct rio_interface)
|
|
#define RIO_IF_DETACH _IOW('Q', 2, struct rio_interface)
|
|
#define RIO_ENABLE _IOW('Q', 3, struct rio_interface)
|
|
#define RIO_DISABLE _IOW('Q', 4, struct rio_interface)
|
|
#define RIO_CONFIG _IOWR('Q', 6, struct rio_conf)
|
|
#define RIO_GETSTATS _IOWR('Q', 12, struct rio_stats)
|
|
#define RIO_SETDEFAULTS _IOW('Q', 30, struct redparams[RIO_NDROPPREC])
|
|
#endif /* ALTQ3_COMPAT */
|
|
|
|
#ifdef _KERNEL
|
|
|
|
typedef struct rio {
|
|
/* per drop precedence structure */
|
|
struct dropprec_state {
|
|
/* red parameters */
|
|
int inv_pmax; /* inverse of max drop probability */
|
|
int th_min; /* red min threshold */
|
|
int th_max; /* red max threshold */
|
|
|
|
/* variables for internal use */
|
|
int th_min_s; /* th_min scaled by avgshift */
|
|
int th_max_s; /* th_max scaled by avgshift */
|
|
int probd; /* drop probability denominator */
|
|
|
|
int qlen; /* queue length */
|
|
int avg; /* (scaled) queue length average */
|
|
int count; /* packet count since the last dropped/
|
|
marked packet */
|
|
int idle; /* queue was empty */
|
|
int old; /* avg is above th_min */
|
|
struct timeval last; /* timestamp when queue becomes idle */
|
|
} rio_precstate[RIO_NDROPPREC];
|
|
|
|
int rio_wshift; /* log(red_weight) */
|
|
int rio_weight; /* weight for EWMA */
|
|
struct wtab *rio_wtab; /* weight table */
|
|
|
|
int rio_pkttime; /* average packet time in micro sec
|
|
used for idle calibration */
|
|
int rio_flags; /* rio flags */
|
|
|
|
u_int8_t rio_codepoint; /* codepoint value to tag packets */
|
|
u_int8_t rio_codepointmask; /* codepoint mask bits */
|
|
|
|
struct redstats q_stats[RIO_NDROPPREC]; /* statistics */
|
|
} rio_t;
|
|
|
|
#ifdef ALTQ3_COMPAT
|
|
typedef struct rio_queue {
|
|
struct rio_queue *rq_next; /* next red_state in the list */
|
|
struct ifaltq *rq_ifq; /* backpointer to ifaltq */
|
|
|
|
class_queue_t *rq_q;
|
|
|
|
rio_t *rq_rio;
|
|
} rio_queue_t;
|
|
#endif /* ALTQ3_COMPAT */
|
|
|
|
extern rio_t *rio_alloc(int, struct redparams *, int, int);
|
|
extern void rio_destroy(rio_t *);
|
|
extern void rio_getstats(rio_t *, struct redstats *);
|
|
extern int rio_addq(rio_t *, class_queue_t *, struct mbuf *,
|
|
struct altq_pktattr *);
|
|
extern struct mbuf *rio_getq(rio_t *, class_queue_t *);
|
|
|
|
#endif /* _KERNEL */
|
|
|
|
#endif /* _ALTQ_ALTQ_RIO_H_ */
|