regmap: allow regmap instances to be named
[linux-2.6.git] / include / linux / if_hippi.h
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@lxorguk.ukuu.org.uk>
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 <linux/types.h>
26 #include <asm/byteorder.h>
27
28 /*
29  *      HIPPI magic constants.
30  */
31
32 #define HIPPI_ALEN      6               /* Bytes in one HIPPI hw-addr      */
33 #define HIPPI_HLEN      sizeof(struct hippi_hdr)
34 #define HIPPI_ZLEN      0               /* Min. bytes in frame without FCS */
35 #define HIPPI_DATA_LEN  65280           /* Max. bytes in payload           */
36 #define HIPPI_FRAME_LEN (HIPPI_DATA_LEN + HIPPI_HLEN)
37                                         /* Max. bytes in frame without FCS */
38
39 /*
40  * Define LLC and SNAP constants.
41  */
42 #define HIPPI_EXTENDED_SAP      0xAA
43 #define HIPPI_UI_CMD            0x03
44
45
46 /*
47  *      Do we need to list some sort of ID's here?
48  */
49
50 /*
51  *      HIPPI statistics collection data. 
52  */
53  
54 struct hipnet_statistics {
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 #if 0
81         __u8            ulp;                            /* must contain 4 */
82 #if defined (__BIG_ENDIAN_BITFIELD)
83         __u8            d1_data_present:1;              /* must be 1 */
84         __u8            start_d2_burst_boundary:1;      /* must be zero */
85         __u8            reserved:6;                     /* must be zero */
86 #if 0
87         __u16           reserved1:5;
88         __u16           d1_area_size:8;                 /* must be 3 */
89         __u16           d2_offset:3;                    /* must be zero */
90 #endif
91 #elif defined(__LITTLE_ENDIAN_BITFIELD)
92         __u8            reserved:6;                     /* must be zero */
93         __u8            start_d2_burst_boundary:1;      /* must be zero */
94         __u8            d1_data_present:1;              /* must be 1 */
95 #if 0
96         __u16           d2_offset:3;                    /* must be zero */
97         __u16           d1_area_size:8;                 /* must be 3 */
98         __u16           reserved1:5;                    /* must be zero */
99 #endif
100 #else
101 #error  "Please fix <asm/byteorder.h>"
102 #endif
103 #else
104         __be32          fixed;
105 #endif
106         __be32          d2_size;
107 } __attribute__((packed));
108
109 struct hippi_le_hdr {
110 #if defined (__BIG_ENDIAN_BITFIELD)
111         __u8            fc:3;
112         __u8            double_wide:1;
113         __u8            message_type:4;
114 #elif defined(__LITTLE_ENDIAN_BITFIELD)
115         __u8            message_type:4;
116         __u8            double_wide:1;
117         __u8            fc:3;
118 #endif
119         __u8            dest_switch_addr[3];
120 #if defined (__BIG_ENDIAN_BITFIELD)
121         __u8            dest_addr_type:4,
122                         src_addr_type:4;
123 #elif defined(__LITTLE_ENDIAN_BITFIELD)
124         __u8            src_addr_type:4,
125                         dest_addr_type:4;
126 #endif
127         __u8            src_switch_addr[3];
128         __u16           reserved;
129         __u8            daddr[HIPPI_ALEN];
130         __u16           locally_administered;
131         __u8            saddr[HIPPI_ALEN];
132 } __attribute__((packed));
133
134 #define HIPPI_OUI_LEN   3
135 /*
136  * Looks like the dsap and ssap fields have been swapped by mistake in
137  * RFC 2067 "IP over HIPPI".
138  */
139 struct hippi_snap_hdr {
140         __u8    dsap;                   /* always 0xAA */
141         __u8    ssap;                   /* always 0xAA */
142         __u8    ctrl;                   /* always 0x03 */
143         __u8    oui[HIPPI_OUI_LEN];     /* organizational universal id (zero)*/
144         __be16  ethertype;              /* packet type ID field */
145 } __attribute__((packed));
146
147 struct hippi_hdr {
148         struct hippi_fp_hdr     fp;
149         struct hippi_le_hdr     le;
150         struct hippi_snap_hdr   snap;
151 } __attribute__((packed));
152
153 #endif  /* _LINUX_IF_HIPPI_H */