ng_async.h revision 52419
152419Sjulian 252419Sjulian/* 352419Sjulian * ng_async.h 452419Sjulian * 552419Sjulian * Copyright (c) 1996-1999 Whistle Communications, Inc. 652419Sjulian * All rights reserved. 752419Sjulian * 852419Sjulian * Subject to the following obligations and disclaimer of warranty, use and 952419Sjulian * redistribution of this software, in source or object code forms, with or 1052419Sjulian * without modifications are expressly permitted by Whistle Communications; 1152419Sjulian * provided, however, that: 1252419Sjulian * 1. Any and all reproductions of the source or object code must include the 1352419Sjulian * copyright notice above and the following disclaimer of warranties; and 1452419Sjulian * 2. No rights are granted, in any manner or form, to use Whistle 1552419Sjulian * Communications, Inc. trademarks, including the mark "WHISTLE 1652419Sjulian * COMMUNICATIONS" on advertising, endorsements, or otherwise except as 1752419Sjulian * such appears in the above copyright notice or in the software. 1852419Sjulian * 1952419Sjulian * THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND 2052419Sjulian * TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO 2152419Sjulian * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE, 2252419Sjulian * INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF 2352419Sjulian * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. 2452419Sjulian * WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY 2552419Sjulian * REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS 2652419Sjulian * SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE. 2752419Sjulian * IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES 2852419Sjulian * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING 2952419Sjulian * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, 3052419Sjulian * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR 3152419Sjulian * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY 3252419Sjulian * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 3352419Sjulian * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 3452419Sjulian * THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY 3552419Sjulian * OF SUCH DAMAGE. 3652419Sjulian * 3752419Sjulian * Author: Archie Cobbs <archie@whistle.com> 3852419Sjulian * 3952419Sjulian * $FreeBSD: head/sys/netgraph/ng_async.h 52419 1999-10-21 09:06:11Z julian $ 4052419Sjulian * $Whistle: ng_async.h,v 1.5 1999/01/25 01:17:14 archie Exp $ 4152419Sjulian */ 4252419Sjulian 4352419Sjulian#ifndef _NETGRAPH_ASYNC_H_ 4452419Sjulian#define _NETGRAPH_ASYNC_H_ 4552419Sjulian 4652419Sjulian/* Type name and cookie */ 4752419Sjulian#define NG_ASYNC_NODE_TYPE "async" 4852419Sjulian#define NGM_ASYNC_COOKIE 886473715 4952419Sjulian 5052419Sjulian/* Hook names */ 5152419Sjulian#define NG_ASYNC_HOOK_SYNC "sync" /* Normal encoding */ 5252419Sjulian#define NG_ASYNC_HOOK_SYNC2 "sync2" /* Full ACCM, no ACF comp. */ 5352419Sjulian#define NG_ASYNC_HOOK_ASYNC "async" /* Normal decoding */ 5452419Sjulian 5552419Sjulian/* Maximum receive size bounds (for both sync and async sides) */ 5652419Sjulian#define NG_ASYNC_MIN_MRU 1 5752419Sjulian#define NG_ASYNC_MAX_MRU 8192 5852419Sjulian#define NG_ASYNC_DEFAULT_MRU 1600 5952419Sjulian 6052419Sjulian/* Frame statistics */ 6152419Sjulianstruct ng_async_stat { 6252419Sjulian u_int32_t syncOctets; 6352419Sjulian u_int32_t syncFrames; 6452419Sjulian u_int32_t syncOverflows; 6552419Sjulian u_int32_t asyncOctets; 6652419Sjulian u_int32_t asyncFrames; 6752419Sjulian u_int32_t asyncRunts; 6852419Sjulian u_int32_t asyncOverflows; 6952419Sjulian u_int32_t asyncBadCheckSums; 7052419Sjulian}; 7152419Sjulian 7252419Sjulian/* Configuration for this node */ 7352419Sjulianstruct ng_async_cfg { 7452419Sjulian u_char enabled; /* Turn encoding on/off */ 7552419Sjulian u_char acfcomp; /* Address/control field compression */ 7652419Sjulian u_int16_t amru; /* Max receive async frame length */ 7752419Sjulian u_int16_t smru; /* Max receive sync frame length */ 7852419Sjulian u_int32_t accm; /* ACCM encoding */ 7952419Sjulian}; 8052419Sjulian 8152419Sjulian/* Commands */ 8252419Sjulianenum { 8352419Sjulian NGM_ASYNC_CMD_GET_STATS = 1, /* returns struct ng_async_stat */ 8452419Sjulian NGM_ASYNC_CMD_CLR_STATS, 8552419Sjulian NGM_ASYNC_CMD_SET_CONFIG, /* takes struct ng_async_cfg */ 8652419Sjulian NGM_ASYNC_CMD_GET_CONFIG, /* returns struct ng_async_cfg */ 8752419Sjulian}; 8852419Sjulian 8952419Sjulian#endif /* _NETGRAPH_ASYNC_H_ */ 90