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1da177e4 LT |
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 | ||
53 | struct 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 | ||
79 | struct 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 | |
57bf1451 | 105 | __be32 fixed; |
1da177e4 | 106 | #endif |
57bf1451 | 107 | __be32 d2_size; |
1da177e4 LT |
108 | } __attribute__ ((packed)); |
109 | ||
110 | struct 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 | */ | |
141 | struct 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)*/ | |
57bf1451 | 147 | __be16 ethertype; /* packet type ID field */ |
1da177e4 LT |
148 | } __attribute__ ((packed)); |
149 | ||
150 | struct 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 */ |