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 __u32 fixed; 82 __u32 d2_size; 83} __attribute__ ((packed)); 84 85struct hippi_le_hdr 86{ 87#if defined(__BIG_ENDIAN_BITFIELD) 88 __u8 fc:3; 89 __u8 double_wide:1; 90 __u8 message_type:4; 91#elif defined(__LITTLE_ENDIAN_BITFIELD) 92 __u8 message_type:4; 93 __u8 double_wide:1; 94 __u8 fc:3; 95#endif 96 __u8 dest_switch_addr[3]; 97#if defined(__BIG_ENDIAN_BITFIELD) 98 __u8 dest_addr_type:4, 99 src_addr_type:4; 100#elif defined(__LITTLE_ENDIAN_BITFIELD) 101 __u8 src_addr_type:4, 102 dest_addr_type:4; 103#endif 104 __u8 src_switch_addr[3]; 105 __u16 reserved; 106 __u8 daddr[HIPPI_ALEN]; 107 __u16 locally_administered; 108 __u8 saddr[HIPPI_ALEN]; 109} __attribute__ ((packed)); 110 111#define HIPPI_OUI_LEN 3 112/* 113 * Looks like the dsap and ssap fields have been swapped by mistake in 114 * RFC 2067 "IP over HIPPI". 115 */ 116struct hippi_snap_hdr 117{ 118 __u8 dsap; /* always 0xAA */ 119 __u8 ssap; /* always 0xAA */ 120 __u8 ctrl; /* always 0x03 */ 121 __u8 oui[HIPPI_OUI_LEN]; /* organizational universal id (zero)*/ 122 __u16 ethertype; /* packet type ID field */ 123} __attribute__ ((packed)); 124 125struct hippi_hdr 126{ 127 struct hippi_fp_hdr fp; 128 struct hippi_le_hdr le; 129 struct hippi_snap_hdr snap; 130} __attribute__ ((packed)); 131 132#endif /* _LINUX_IF_HIPPI_H */ 133