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: src/sys/netgraph/ng_async.h,v 1.11 2005/01/07 01:45:39 imp Exp $
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
|