altq_fairq.h revision 298091
133965Sjdp/* 277298Sobrien * Copyright (c) 2008 The DragonFly Project. All rights reserved. 389857Sobrien * 4218822Sdim * This code is derived from software contributed to The DragonFly Project 5218822Sdim * by Matthew Dillon <dillon@backplane.com> 668765Sobrien * 7218822Sdim * Redistribution and use in source and binary forms, with or without 868765Sobrien * modification, are permitted provided that the following conditions 933965Sjdp * are met: 1033965Sjdp * 1133965Sjdp * 1. Redistributions of source code must retain the above copyright 1233965Sjdp * notice, this list of conditions and the following disclaimer. 1333965Sjdp * 2. Redistributions in binary form must reproduce the above copyright 1433965Sjdp * notice, this list of conditions and the following disclaimer in 1533965Sjdp * the documentation and/or other materials provided with the 1633965Sjdp * distribution. 1733965Sjdp * 3. Neither the name of The DragonFly Project nor the names of its 1833965Sjdp * contributors may be used to endorse or promote products derived 1933965Sjdp * from this software without specific, prior written permission. 2033965Sjdp * 2133965Sjdp * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 2233965Sjdp * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 2333965Sjdp * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 2433965Sjdp * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 25218822Sdim * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 26218822Sdim * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 27218822Sdim * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 2833965Sjdp * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 2933965Sjdp * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 3033965Sjdp * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 3133965Sjdp * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3233965Sjdp * SUCH DAMAGE. 33218822Sdim * 3489857Sobrien * $DragonFly: src/sys/net/altq/altq_fairq.h,v 1.1 2008/04/06 18:58:15 dillon Exp $ 3589857Sobrien * $FreeBSD: stable/10/sys/contrib/altq/altq/altq_fairq.h 298091 2016-04-16 02:11:04Z loos $ 3660484Sobrien */ 3733965Sjdp 3833965Sjdp#ifndef _ALTQ_ALTQ_FAIRQ_H_ 3933965Sjdp#define _ALTQ_ALTQ_FAIRQ_H_ 4033965Sjdp 4133965Sjdp#include <altq/altq.h> 4233965Sjdp#include <altq/altq_classq.h> 4333965Sjdp#include <altq/altq_red.h> 4433965Sjdp#include <altq/altq_rio.h> 4533965Sjdp#include <altq/altq_rmclass.h> 4633965Sjdp 4733965Sjdp#define FAIRQ_MAX_BUCKETS 2048 /* maximum number of sorting buckets */ 4833965Sjdp#define FAIRQ_MAXPRI RM_MAXPRIO 4933965Sjdp#define FAIRQ_BITMAP_WIDTH (sizeof(fairq_bitmap_t)*8) 5033965Sjdp#define FAIRQ_BITMAP_MASK (FAIRQ_BITMAP_WIDTH - 1) 5133965Sjdp 5233965Sjdp/* fairq class flags */ 5333965Sjdp#define FARF_RED 0x0001 /* use RED */ 5433965Sjdp#define FARF_ECN 0x0002 /* use RED/ECN */ 5533965Sjdp#define FARF_RIO 0x0004 /* use RIO */ 5633965Sjdp#define FARF_CLEARDSCP 0x0010 /* clear diffserv codepoint */ 5768765Sobrien#define FARF_DEFAULTCLASS 0x1000 /* default class */ 5833965Sjdp 5968765Sobrien#define FARF_HAS_PACKETS 0x2000 /* might have queued packets */ 6068765Sobrien 6168765Sobrien#define FARF_USERFLAGS (FARF_RED|FARF_ECN|FARF_RIO|FARF_CLEARDSCP| \ 6268765Sobrien FARF_DEFAULTCLASS) 6368765Sobrien 6468765Sobrien/* special class handles */ 6568765Sobrien#define FAIRQ_NULLCLASS_HANDLE 0 6677298Sobrien 6777298Sobrientypedef u_int fairq_bitmap_t; 6877298Sobrien 6968765Sobrienstruct fairq_classstats { 7077298Sobrien uint32_t class_handle; 7177298Sobrien 7277298Sobrien u_int qlength; 7377298Sobrien u_int qlimit; 7477298Sobrien struct pktcntr xmit_cnt; /* transmitted packet counter */ 75218822Sdim struct pktcntr drop_cnt; /* dropped packet counter */ 7677298Sobrien 7777298Sobrien /* red and rio related info */ 7877298Sobrien int qtype; 7977298Sobrien struct redstats red[3]; /* rio has 3 red stats */ 8077298Sobrien}; 8168765Sobrien 8268765Sobrien#ifdef _KERNEL 8368765Sobrien 8468765Sobrientypedef struct fairq_bucket { 8568765Sobrien struct fairq_bucket *next; /* circular list */ 8677298Sobrien struct fairq_bucket *prev; /* circular list */ 8777298Sobrien class_queue_t queue; /* the actual queue */ 88218822Sdim uint64_t bw_bytes; /* statistics used to calculate bw */ 8977298Sobrien uint64_t bw_delta; /* statistics used to calculate bw */ 90218822Sdim uint64_t last_time; 9168765Sobrien int in_use; 92218822Sdim} fairq_bucket_t; 9368765Sobrien 9468765Sobrienstruct fairq_class { 9568765Sobrien uint32_t cl_handle; /* class handle */ 9668765Sobrien u_int cl_nbuckets; /* (power of 2) */ 9768765Sobrien u_int cl_nbucket_mask; /* bucket mask */ 9877298Sobrien fairq_bucket_t *cl_buckets; 9968765Sobrien fairq_bucket_t *cl_head; /* head of circular bucket list */ 10068765Sobrien fairq_bucket_t *cl_polled; 10168765Sobrien struct red *cl_red; /* RED state */ 10268765Sobrien u_int cl_hogs_m1; 10368765Sobrien u_int cl_lssc_m1; 104218822Sdim u_int cl_bandwidth; 10568765Sobrien uint64_t cl_bw_bytes; 10668765Sobrien uint64_t cl_bw_delta; 10768765Sobrien uint64_t cl_last_time; 10868765Sobrien int cl_qtype; /* rollup */ 10968765Sobrien int cl_qlimit; 11068765Sobrien int cl_pri; /* priority */ 11168765Sobrien int cl_flags; /* class flags */ 11268765Sobrien struct fairq_if *cl_pif; /* back pointer to pif */ 11368765Sobrien struct altq_pktattr *cl_pktattr; /* saved header used by ECN */ 11468765Sobrien 11568765Sobrien /* round robin index */ 11668765Sobrien 11733965Sjdp /* statistics */ 11833965Sjdp struct pktcntr cl_xmitcnt; /* transmitted packet counter */ 11933965Sjdp struct pktcntr cl_dropcnt; /* dropped packet counter */ 12033965Sjdp}; 12133965Sjdp 12233965Sjdp/* 123218822Sdim * fairq interface state 124218822Sdim */ 125218822Sdimstruct fairq_if { 12633965Sjdp struct fairq_if *pif_next; /* interface state list */ 12733965Sjdp struct ifaltq *pif_ifq; /* backpointer to ifaltq */ 12833965Sjdp u_int pif_bandwidth; /* link bandwidth in bps */ 12933965Sjdp int pif_maxpri; /* max priority in use */ 13033965Sjdp struct fairq_class *pif_poll_cache;/* cached poll */ 13133965Sjdp struct fairq_class *pif_default; /* default class */ 13233965Sjdp struct fairq_class *pif_classes[FAIRQ_MAXPRI]; /* classes */ 13333965Sjdp}; 13433965Sjdp 13533965Sjdp#endif /* _KERNEL */ 13633965Sjdp 13733965Sjdp#endif /* _ALTQ_ALTQ_FAIRQ_H_ */ 13833965Sjdp