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gerrit-public.fairphone.software / fp2-dev / kernel / msm / 8d0a8a9d0ec790086c64d210af413ac351d89e35 / . / include / linux / if_hippi.h
blob: c8ca72c46f76e76ebdadae0df70747782c1359fc [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]1/*
2 * INET An implementation of the TCP/IP protocol suite for the LINUX
3 * operating system. INET is implemented using the BSD Socket
4 * interface as the means of communication with the user level.
5 *
6 * Global definitions for the HIPPI interface.
7 *
8 * Version: @(#)if_hippi.h 1.0.0 05/26/97
9 *
10 * Author: Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
11 * Donald Becker, <becker@super.org>
12 * Alan Cox, <alan@redhat.com>
13 * Steve Whitehouse, <gw7rrm@eeshack3.swan.ac.uk>
14 * Jes Sorensen, <Jes.Sorensen@cern.ch>
15 *
16 * This program is free software; you can redistribute it and/or
17 * modify it under the terms of the GNU General Public License
18 * as published by the Free Software Foundation; either version
19 * 2 of the License, or (at your option) any later version.
20 */
21
22#ifndef _LINUX_IF_HIPPI_H
23#define _LINUX_IF_HIPPI_H
24
25#include <asm/byteorder.h>
26
27/*
28 * HIPPI magic constants.
29 */
30
31#define HIPPI_ALEN 6 /* Bytes in one HIPPI hw-addr */
32#define HIPPI_HLEN sizeof(struct hippi_hdr)
33#define HIPPI_ZLEN 0 /* Min. bytes in frame without FCS */
34#define HIPPI_DATA_LEN 65280 /* Max. bytes in payload */
35#define HIPPI_FRAME_LEN (HIPPI_DATA_LEN + HIPPI_HLEN)
36 /* Max. bytes in frame without FCS */
37
38/*
39 * Define LLC and SNAP constants.
40 */
41#define HIPPI_EXTENDED_SAP 0xAA
42#define HIPPI_UI_CMD 0x03
43
44
45/*
46 * Do we need to list some sort of ID's here?
47 */
48
49/*
50 * HIPPI statistics collection data.
51 */
52
53struct hipnet_statistics
54{
55 int rx_packets; /* total packets received */
56 int tx_packets; /* total packets transmitted */
57 int rx_errors; /* bad packets received */
58 int tx_errors; /* packet transmit problems */
59 int rx_dropped; /* no space in linux buffers */
60 int tx_dropped; /* no space available in linux */
61
62 /* detailed rx_errors: */
63 int rx_length_errors;
64 int rx_over_errors; /* receiver ring buff overflow */
65 int rx_crc_errors; /* recved pkt with crc error */
66 int rx_frame_errors; /* recv'd frame alignment error */
67 int rx_fifo_errors; /* recv'r fifo overrun */
68 int rx_missed_errors; /* receiver missed packet */
69
70 /* detailed tx_errors */
71 int tx_aborted_errors;
72 int tx_carrier_errors;
73 int tx_fifo_errors;
74 int tx_heartbeat_errors;
75 int tx_window_errors;
76};
77
78
79struct hippi_fp_hdr
80{
81#if 0
82 __u8 ulp; /* must contain 4 */
83#if defined (__BIG_ENDIAN_BITFIELD)
84 __u8 d1_data_present:1; /* must be 1 */
85 __u8 start_d2_burst_boundary:1; /* must be zero */
86 __u8 reserved:6; /* must be zero */
87#if 0
88 __u16 reserved1:5;
89 __u16 d1_area_size:8; /* must be 3 */
90 __u16 d2_offset:3; /* must be zero */
91#endif
92#elif defined(__LITTLE_ENDIAN_BITFIELD)
93 __u8 reserved:6; /* must be zero */
94 __u8 start_d2_burst_boundary:1; /* must be zero */
95 __u8 d1_data_present:1; /* must be 1 */
96#if 0
97 __u16 d2_offset:3; /* must be zero */
98 __u16 d1_area_size:8; /* must be 3 */
99 __u16 reserved1:5; /* must be zero */
100#endif
101#else
102#error "Please fix <asm/byteorder.h>"
103#endif
104#else
105 __u32 fixed;
106#endif
107 __u32 d2_size;
108} __attribute__ ((packed));
109
110struct hippi_le_hdr
111{
112#if defined (__BIG_ENDIAN_BITFIELD)
113 __u8 fc:3;
114 __u8 double_wide:1;
115 __u8 message_type:4;
116#elif defined(__LITTLE_ENDIAN_BITFIELD)
117 __u8 message_type:4;
118 __u8 double_wide:1;
119 __u8 fc:3;
120#endif
121 __u8 dest_switch_addr[3];
122#if defined (__BIG_ENDIAN_BITFIELD)
123 __u8 dest_addr_type:4,
124 src_addr_type:4;
125#elif defined(__LITTLE_ENDIAN_BITFIELD)
126 __u8 src_addr_type:4,
127 dest_addr_type:4;
128#endif
129 __u8 src_switch_addr[3];
130 __u16 reserved;
131 __u8 daddr[HIPPI_ALEN];
132 __u16 locally_administered;
133 __u8 saddr[HIPPI_ALEN];
134} __attribute__ ((packed));
135
136#define HIPPI_OUI_LEN 3
137/*
138 * Looks like the dsap and ssap fields have been swapped by mistake in
139 * RFC 2067 "IP over HIPPI".
140 */
141struct hippi_snap_hdr
142{
143 __u8 dsap; /* always 0xAA */
144 __u8 ssap; /* always 0xAA */
145 __u8 ctrl; /* always 0x03 */
146 __u8 oui[HIPPI_OUI_LEN]; /* organizational universal id (zero)*/
147 __u16 ethertype; /* packet type ID field */
148} __attribute__ ((packed));
149
150struct hippi_hdr
151{
152 struct hippi_fp_hdr fp;
153 struct hippi_le_hdr le;
154 struct hippi_snap_hdr snap;
155} __attribute__ ((packed));
156
157#endif /* _LINUX_IF_HIPPI_H */