1 /* 2 * ng_async.h 3 */ 4 5 /*- 6 * Copyright (c) 1996-1999 Whistle Communications, Inc. 7 * All rights reserved. 8 * 9 * Subject to the following obligations and disclaimer of warranty, use and 10 * redistribution of this software, in source or object code forms, with or 11 * without modifications are expressly permitted by Whistle Communications; 12 * provided, however, that: 13 * 1. Any and all reproductions of the source or object code must include the 14 * copyright notice above and the following disclaimer of warranties; and 15 * 2. No rights are granted, in any manner or form, to use Whistle 16 * Communications, Inc. trademarks, including the mark "WHISTLE 17 * COMMUNICATIONS" on advertising, endorsements, or otherwise except as 18 * such appears in the above copyright notice or in the software. 19 * 20 * THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND 21 * TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO 22 * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE, 23 * INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF 24 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. 25 * WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY 26 * REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS 27 * SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE. 28 * IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES 29 * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING 30 * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, 31 * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR 32 * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY 33 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 34 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 35 * THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY 36 * OF SUCH DAMAGE. 37 * 38 * Author: Archie Cobbs <archie@freebsd.org> 39 * 40 * $FreeBSD$ 41 * $Whistle: ng_async.h,v 1.5 1999/01/25 01:17:14 archie Exp $ 42 */ 43 44 #ifndef _NETGRAPH_NG_ASYNC_H_ 45 #define _NETGRAPH_NG_ASYNC_H_ 46 47 /* Type name and cookie */ 48 #define NG_ASYNC_NODE_TYPE "async" 49 #define NGM_ASYNC_COOKIE 886473717 50 51 /* Hook names */ 52 #define NG_ASYNC_HOOK_SYNC "sync" /* Sync frames */ 53 #define NG_ASYNC_HOOK_ASYNC "async" /* Async-encoded frames */ 54 55 /* Maximum receive size bounds (for both sync and async sides) */ 56 #define NG_ASYNC_MIN_MRU 1 57 #define NG_ASYNC_MAX_MRU 8192 58 #define NG_ASYNC_DEFAULT_MRU 1600 59 60 /* Frame statistics */ 61 struct ng_async_stat { 62 u_int32_t syncOctets; 63 u_int32_t syncFrames; 64 u_int32_t syncOverflows; 65 u_int32_t asyncOctets; 66 u_int32_t asyncFrames; 67 u_int32_t asyncRunts; 68 u_int32_t asyncOverflows; 69 u_int32_t asyncBadCheckSums; 70 }; 71 72 /* Keep this in sync with the above structure definition */ 73 #define NG_ASYNC_STATS_TYPE_INFO { \ 74 { "syncOctets", &ng_parse_uint32_type }, \ 75 { "syncFrames", &ng_parse_uint32_type }, \ 76 { "syncOverflows", &ng_parse_uint32_type }, \ 77 { "asyncOctets", &ng_parse_uint32_type }, \ 78 { "asyncFrames", &ng_parse_uint32_type }, \ 79 { "asyncRunts", &ng_parse_uint32_type }, \ 80 { "asyncOverflows", &ng_parse_uint32_type }, \ 81 { "asyncBadCheckSums",&ng_parse_uint32_type }, \ 82 { NULL } \ 83 } 84 85 /* Configuration for this node */ 86 struct ng_async_cfg { 87 u_char enabled; /* Turn encoding on/off */ 88 u_int16_t amru; /* Max receive async frame length */ 89 u_int16_t smru; /* Max receive sync frame length */ 90 u_int32_t accm; /* ACCM encoding */ 91 }; 92 93 /* Keep this in sync with the above structure definition */ 94 #define NG_ASYNC_CONFIG_TYPE_INFO { \ 95 { "enabled", &ng_parse_int8_type }, \ 96 { "amru", &ng_parse_uint16_type }, \ 97 { "smru", &ng_parse_uint16_type }, \ 98 { "accm", &ng_parse_hint32_type }, \ 99 { NULL } \ 100 } 101 102 /* Commands */ 103 enum { 104 NGM_ASYNC_CMD_GET_STATS = 1, /* returns struct ng_async_stat */ 105 NGM_ASYNC_CMD_CLR_STATS, 106 NGM_ASYNC_CMD_SET_CONFIG, /* takes struct ng_async_cfg */ 107 NGM_ASYNC_CMD_GET_CONFIG, /* returns struct ng_async_cfg */ 108 }; 109 110 #endif /* _NETGRAPH_NG_ASYNC_H_ */ 111