altq_cbq.h

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    1 /*      $NetBSD: altq_cbq.h,v 1.8 2006/10/12 19:59:08 peter Exp $       */
    2 /*      $KAME: altq_cbq.h,v 1.12 2003/10/03 05:05:15 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 <altq/altq.h>
   38 #include <altq/altq_rmclass.h>
   39 #include <altq/altq_red.h>
   40 #include <altq/altq_rio.h>
   41 
   42 #ifdef __cplusplus
   43 extern "C" {
   44 #endif
   45 
   46 #define NULL_CLASS_HANDLE       0
   47 
   48 /* class flags should be same as class flags in rm_class.h */
   49 #define CBQCLF_RED              0x0001  /* use RED */
   50 #define CBQCLF_ECN              0x0002  /* use RED/ECN */
   51 #define CBQCLF_RIO              0x0004  /* use RIO */
   52 #define CBQCLF_FLOWVALVE        0x0008  /* use flowvalve (aka penalty-box) */
   53 #define CBQCLF_CLEARDSCP        0x0010  /* clear diffserv codepoint */
   54 #define CBQCLF_BORROW           0x0020  /* borrow from parent */
   55 
   56 /* class flags only for root class */
   57 #define CBQCLF_WRR              0x0100  /* weighted-round robin */
   58 #define CBQCLF_EFFICIENT        0x0200  /* work-conserving */
   59 
   60 /* class flags for special classes */
   61 #define CBQCLF_ROOTCLASS        0x1000  /* root class */
   62 #define CBQCLF_DEFCLASS         0x2000  /* default class */
   63 #ifdef ALTQ3_COMPAT
   64 #define CBQCLF_CTLCLASS         0x4000  /* control class */
   65 #endif
   66 #define CBQCLF_CLASSMASK        0xf000  /* class mask */
   67 
   68 #define CBQ_MAXQSIZE            200
   69 #define CBQ_MAXPRI              RM_MAXPRIO
   70 
   71 typedef struct _cbq_class_stats_ {
   72         u_int32_t       handle;
   73         u_int           depth;
   74 
   75         struct pktcntr  xmit_cnt;       /* packets sent in this class */
   76         struct pktcntr  drop_cnt;       /* dropped packets */
   77         u_int           over;           /* # times went over limit */
   78         u_int           borrows;        /* # times tried to borrow */
   79         u_int           overactions;    /* # times invoked overlimit action */
   80         u_int           delays;         /* # times invoked delay actions */
   81 
   82         /* other static class parameters useful for debugging */
   83         int             priority;
   84         int             maxidle;
   85         int             minidle;
   86         int             offtime;
   87         int             qmax;
   88         int             ns_per_byte;
   89         int             wrr_allot;
   90 
   91         int             qcnt;           /* # packets in queue */
   92         int             avgidle;
   93 
   94         /* red and rio related info */
   95         int             qtype;
   96         struct redstats red[3];
   97 } class_stats_t;
   98 
   99 #ifdef ALTQ3_COMPAT
  100 /*
  101  * Define structures associated with IOCTLS for cbq.
  102  */
  103 
  104 /*
  105  * Define the CBQ interface structure.  This must be included in all
  106  * IOCTL's such that the CBQ driver may find the appropriate CBQ module
  107  * associated with the network interface to be affected.
  108  */
  109 struct cbq_interface {
  110         char    cbq_ifacename[IFNAMSIZ];
  111 };
  112 
  113 typedef struct cbq_class_spec {
  114         u_int           priority;
  115         u_int           nano_sec_per_byte;
  116         u_int           maxq;
  117         u_int           maxidle;
  118         int             minidle;
  119         u_int           offtime;
  120         u_int32_t       parent_class_handle;
  121         u_int32_t       borrow_class_handle;
  122 
  123         u_int           pktsize;
  124         int             flags;
  125 } cbq_class_spec_t;
  126 
  127 struct cbq_add_class {
  128         struct cbq_interface    cbq_iface;
  129 
  130         cbq_class_spec_t        cbq_class;
  131         u_int32_t               cbq_class_handle;
  132 };
  133 
  134 struct cbq_delete_class {
  135         struct cbq_interface    cbq_iface;
  136         u_int32_t               cbq_class_handle;
  137 };
  138 
  139 struct cbq_modify_class {
  140         struct cbq_interface    cbq_iface;
  141 
  142         cbq_class_spec_t        cbq_class;
  143         u_int32_t               cbq_class_handle;
  144 };
  145 
  146 struct cbq_add_filter {
  147         struct cbq_interface            cbq_iface;
  148         u_int32_t               cbq_class_handle;
  149         struct flow_filter      cbq_filter;
  150 
  151         u_long                  cbq_filter_handle;
  152 };
  153 
  154 struct cbq_delete_filter {
  155         struct cbq_interface    cbq_iface;
  156         u_long                  cbq_filter_handle;
  157 };
  158 
  159 /* number of classes are returned in nclasses field */
  160 struct cbq_getstats {
  161         struct cbq_interface    iface;
  162         int                     nclasses;
  163         class_stats_t           *stats;
  164 };
  165 
  166 /*
  167  * Define IOCTLs for CBQ.
  168  */
  169 #define CBQ_IF_ATTACH           _IOW('Q', 1, struct cbq_interface)
  170 #define CBQ_IF_DETACH           _IOW('Q', 2, struct cbq_interface)
  171 #define CBQ_ENABLE              _IOW('Q', 3, struct cbq_interface)
  172 #define CBQ_DISABLE             _IOW('Q', 4, struct cbq_interface)
  173 #define CBQ_CLEAR_HIERARCHY     _IOW('Q', 5, struct cbq_interface)
  174 #define CBQ_ADD_CLASS           _IOWR('Q', 7, struct cbq_add_class)
  175 #define CBQ_DEL_CLASS           _IOW('Q', 8, struct cbq_delete_class)
  176 #define CBQ_MODIFY_CLASS        _IOWR('Q', 9, struct cbq_modify_class)
  177 #define CBQ_ADD_FILTER          _IOWR('Q', 10, struct cbq_add_filter)
  178 #define CBQ_DEL_FILTER          _IOW('Q', 11, struct cbq_delete_filter)
  179 #define CBQ_GETSTATS            _IOWR('Q', 12, struct cbq_getstats)
  180 #endif /* ALTQ3_COMPAT */
  181 
  182 #ifdef _KERNEL
  183 /*
  184  * Define macros only good for kernel drivers and modules.
  185  */
  186 #define CBQ_WATCHDOG            (hz / 20)
  187 #define CBQ_TIMEOUT             10
  188 #define CBQ_LS_TIMEOUT          (20 * hz / 1000)
  189 
  190 #define CBQ_MAX_CLASSES 256
  191 
  192 #ifdef ALTQ3_COMPAT
  193 #define CBQ_MAX_FILTERS 256
  194 
  195 #define DISABLE         0x00
  196 #define ENABLE          0x01
  197 #endif /* ALTQ3_COMPAT */
  198 
  199 /*
  200  * Define State structures.
  201  */
  202 typedef struct cbqstate {
  203 #ifdef ALTQ3_COMPAT
  204         struct cbqstate         *cbq_next;
  205 #endif
  206         int                      cbq_qlen;      /* # of packets in cbq */
  207         struct rm_class         *cbq_class_tbl[CBQ_MAX_CLASSES];
  208 
  209         struct rm_ifdat          ifnp;
  210         struct callout           cbq_callout;   /* for timeouts */
  211 #ifdef ALTQ3_CLFIER_COMPAT
  212         struct acc_classifier   cbq_classifier;
  213 #endif
  214 } cbq_state_t;
  215 
  216 #endif /* _KERNEL */
  217 
  218 #ifdef __cplusplus
  219 }
  220 #endif
  221 
  222 #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