altq_cbq.h

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    1 /*      $NetBSD: altq_cbq.h,v 1.5 2003/08/20 23:32:25 itojun Exp $      */
    2 /*      $KAME: altq_cbq.h,v 1.5 2000/12/02 13:44:40 kjc Exp $   */
    3 
    4 /*
    5  * Copyright (c) Sun Microsystems, Inc. 1993-1998 All rights reserved.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  *
   11  * 1. Redistributions of source code must retain the above copyright
   12  *    notice, this list of conditions and the following disclaimer.
   13  *
   14  * 2. Redistributions in binary form must reproduce the above copyright
   15  *    notice, this list of conditions and the following disclaimer in the
   16  *    documentation and/or other materials provided with the distribution.
   17  *
   18  * 3. All advertising materials mentioning features or use of this software
   19  *    must display the following acknowledgement:
   20  *      This product includes software developed by the SMCC Technology
   21  *      Development Group at Sun Microsystems, Inc.
   22  *
   23  * 4. The name of the Sun Microsystems, Inc nor may not be used to endorse or
   24  *      promote products derived from this software without specific prior
   25  *      written permission.
   26  *
   27  * SUN MICROSYSTEMS DOES NOT CLAIM MERCHANTABILITY OF THIS SOFTWARE OR THE
   28  * SUITABILITY OF THIS SOFTWARE FOR ANY PARTICULAR PURPOSE.  The software is
   29  * provided "as is" without express or implied warranty of any kind.
   30  *  
   31  * These notices must be retained in any copies of any part of this software.
   32  */
   33 
   34 #ifndef _ALTQ_ALTQ_CBQ_H_
   35 #define _ALTQ_ALTQ_CBQ_H_
   36 
   37 #include <sys/ioccom.h>
   38 #include <altq/altq.h>
   39 #include <altq/altq_rmclass.h>
   40 #include <altq/altq_red.h>
   41 #include <altq/altq_rio.h>
   42 
   43 /* #pragma ident "@(#)cbq.h  1.18     98/05/13 SMI" */
   44 
   45 #ifdef __cplusplus
   46 extern "C" {
   47 #endif 
   48 
   49 /*
   50  * Define a well known class handles
   51  */
   52 #define NULL_CLASS_HANDLE       0xffffffff
   53 #define ROOT_CLASS_HANDLE       0xfffffffe
   54 #define DEFAULT_CLASS_HANDLE    0xfffffffd
   55 #define CTL_CLASS_HANDLE        0xfffffffc
   56 
   57 /*
   58  * Define structures associated with IOCTLS for cbq.
   59  */
   60 
   61 /*
   62  * Define the CBQ interface structure.  This must be included in all
   63  * IOCTL's such that the CBQ driver may find the appropriate CBQ module
   64  * associated with the network interface to be affected.
   65  */
   66 struct cbq_interface {
   67         char    cbq_ifacename[IFNAMSIZ];
   68 };
   69 
   70 typedef struct cbq_class_spec {
   71         u_int           priority;
   72         u_int           nano_sec_per_byte;
   73         u_int           maxq;
   74         u_int           maxidle;
   75         int             minidle;        
   76         u_int           offtime;
   77         u_long          parent_class_handle;
   78         u_long          borrow_class_handle;
   79 
   80         u_int           pktsize;
   81         int             flags;
   82 } cbq_class_spec_t;
   83 
   84 /* class flags should be same as class flags in rm_class.h */
   85 #define CBQCLF_RED              0x0001  /* use RED */
   86 #define CBQCLF_ECN              0x0002  /* use RED/ECN */
   87 #define CBQCLF_RIO              0x0004  /* use RIO */
   88 #define CBQCLF_FLOWVALVE        0x0008  /* use flowvalve (aka penalty-box) */
   89 #define CBQCLF_CLEARDSCP        0x0010  /* clear diffserv codepoint */
   90 
   91 /* class flags only for root class */
   92 #define CBQCLF_WRR              0x0100  /* weighted-round robin */
   93 #define CBQCLF_EFFICIENT        0x0200  /* work-conserving */
   94 
   95 /* class flags for special classes */
   96 #define CBQCLF_ROOTCLASS        0x1000  /* root class */
   97 #define CBQCLF_DEFCLASS         0x2000  /* default class */
   98 #define CBQCLF_CTLCLASS         0x4000  /* control class */
   99 #define CBQCLF_CLASSMASK        0xf000  /* class mask */
  100 
  101 #define CBQ_MAXQSIZE    200
  102 #define CBQ_MAXPRI      RM_MAXPRIO
  103 
  104 struct cbq_add_class {
  105         struct cbq_interface    cbq_iface;
  106 
  107         cbq_class_spec_t        cbq_class;      
  108         u_long                  cbq_class_handle;
  109 };
  110 
  111 struct cbq_delete_class {
  112         struct cbq_interface    cbq_iface;
  113         u_long                  cbq_class_handle;
  114 };
  115 
  116 struct cbq_modify_class {
  117         struct cbq_interface    cbq_iface;
  118 
  119         cbq_class_spec_t        cbq_class;      
  120         u_long                  cbq_class_handle;
  121 };
  122 
  123 struct cbq_add_filter {
  124         struct cbq_interface            cbq_iface;
  125         u_long                  cbq_class_handle;
  126         struct flow_filter      cbq_filter;
  127 
  128         u_long                  cbq_filter_handle;
  129 };
  130 
  131 struct cbq_delete_filter {
  132         struct cbq_interface    cbq_iface;
  133         u_long                  cbq_filter_handle;
  134 };
  135 
  136 typedef struct _cbq_class_stats_ {
  137         u_int           handle;
  138         u_int           depth;
  139 
  140         struct pktcntr  xmit_cnt;       /* packets sent in this class */
  141         struct pktcntr  drop_cnt;       /* dropped packets */
  142         u_int           over;           /* # times went over limit */
  143         u_int           borrows;        /* # times tried to borrow */
  144         u_int           overactions;    /* # times invoked overlimit action */
  145         u_int           delays;         /* # times invoked delay actions */
  146 
  147         /* other static class parameters useful for debugging */
  148         int             priority;
  149         int             maxidle;
  150         int             minidle;
  151         int             offtime;
  152         int             qmax;
  153         int             ns_per_byte;
  154         int             wrr_allot;
  155 
  156         int             qcnt;           /* # packets in queue */
  157         int             avgidle;
  158 
  159         /* red and rio related info */
  160         int             qtype;
  161         struct redstats red[3];
  162 } class_stats_t;
  163 
  164 /* number of classes are returned in nclasses field */
  165 struct cbq_getstats {
  166         struct cbq_interface    iface;
  167         int                     nclasses;
  168         class_stats_t           *stats;
  169 };
  170 
  171 /* 
  172  * Define IOCTLs for CBQ.
  173  */
  174 #define CBQ_IF_ATTACH           _IOW('Q', 1, struct cbq_interface)
  175 #define CBQ_IF_DETACH           _IOW('Q', 2, struct cbq_interface)
  176 #define CBQ_ENABLE              _IOW('Q', 3, struct cbq_interface)
  177 #define CBQ_DISABLE             _IOW('Q', 4, struct cbq_interface)
  178 #define CBQ_CLEAR_HIERARCHY     _IOW('Q', 5, struct cbq_interface)
  179 #define CBQ_ADD_CLASS           _IOWR('Q', 7, struct cbq_add_class)
  180 #define CBQ_DEL_CLASS           _IOW('Q', 8, struct cbq_delete_class)
  181 #define CBQ_MODIFY_CLASS        _IOWR('Q', 9, struct cbq_modify_class)
  182 #define CBQ_ADD_FILTER          _IOWR('Q', 10, struct cbq_add_filter)
  183 #define CBQ_DEL_FILTER          _IOW('Q', 11, struct cbq_delete_filter)
  184 #define CBQ_GETSTATS            _IOWR('Q', 12, struct cbq_getstats)
  185 
  186 #ifdef _KERNEL
  187 /*
  188  * Define macros only good for kernel drivers and modules.
  189  */
  190 
  191 #define DISABLE         0x00
  192 #define ENABLE          0x01
  193 
  194 #define CBQ_WATCHDOG            (hz / 20)
  195 #define CBQ_TIMEOUT             10
  196 #define CBQ_LS_TIMEOUT          (20 * hz / 1000)
  197 
  198 #define CBQ_MAX_CLASSES 256
  199 #define CBQ_MAX_FILTERS 256
  200 
  201 /*
  202  * Define State structures.
  203  */
  204 typedef struct cbqstate {
  205         struct cbqstate         *cbq_next;
  206         int                     cbq_qlen;       /* # of packets in cbq */
  207         struct rm_class         **cbq_class_tbl;
  208 
  209         struct rm_ifdat         ifnp;
  210         struct callout          cbq_callout;    /* for timeouts */
  211 
  212         struct acc_classifier   cbq_classifier;
  213 } cbq_state_t;
  214 
  215 #endif /* _KERNEL */
  216 
  217 #ifdef __cplusplus
  218 }
  219 #endif 
  220 
  221 #endif /* !_ALTQ_ALTQ_CBQ_H_ */

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FreeBSD/Linux Kernel Cross Reference sys/altq/altq_cbq.h

FreeBSD/Linux Kernel Cross Reference
sys/altq/altq_cbq.h