1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * INET An implementation of the TCP/IP protocol suite for the LINUX 4*4882a593Smuzhiyun * operating system. INET is implemented using the BSD Socket 5*4882a593Smuzhiyun * interface as the means of communication with the user level. 6*4882a593Smuzhiyun * 7*4882a593Smuzhiyun * Global definitions for the HIPPI interface. 8*4882a593Smuzhiyun * 9*4882a593Smuzhiyun * Version: @(#)if_hippi.h 1.0.0 05/26/97 10*4882a593Smuzhiyun * 11*4882a593Smuzhiyun * Author: Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> 12*4882a593Smuzhiyun * Donald Becker, <becker@super.org> 13*4882a593Smuzhiyun * Alan Cox, <alan@lxorguk.ukuu.org.uk> 14*4882a593Smuzhiyun * Steve Whitehouse, <gw7rrm@eeshack3.swan.ac.uk> 15*4882a593Smuzhiyun * Jes Sorensen, <Jes.Sorensen@cern.ch> 16*4882a593Smuzhiyun * 17*4882a593Smuzhiyun * This program is free software; you can redistribute it and/or 18*4882a593Smuzhiyun * modify it under the terms of the GNU General Public License 19*4882a593Smuzhiyun * as published by the Free Software Foundation; either version 20*4882a593Smuzhiyun * 2 of the License, or (at your option) any later version. 21*4882a593Smuzhiyun */ 22*4882a593Smuzhiyun 23*4882a593Smuzhiyun #ifndef _LINUX_IF_HIPPI_H 24*4882a593Smuzhiyun #define _LINUX_IF_HIPPI_H 25*4882a593Smuzhiyun 26*4882a593Smuzhiyun #include <linux/types.h> 27*4882a593Smuzhiyun #include <asm/byteorder.h> 28*4882a593Smuzhiyun 29*4882a593Smuzhiyun /* 30*4882a593Smuzhiyun * HIPPI magic constants. 31*4882a593Smuzhiyun */ 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun #define HIPPI_ALEN 6 /* Bytes in one HIPPI hw-addr */ 34*4882a593Smuzhiyun #define HIPPI_HLEN sizeof(struct hippi_hdr) 35*4882a593Smuzhiyun #define HIPPI_ZLEN 0 /* Min. bytes in frame without FCS */ 36*4882a593Smuzhiyun #define HIPPI_DATA_LEN 65280 /* Max. bytes in payload */ 37*4882a593Smuzhiyun #define HIPPI_FRAME_LEN (HIPPI_DATA_LEN + HIPPI_HLEN) 38*4882a593Smuzhiyun /* Max. bytes in frame without FCS */ 39*4882a593Smuzhiyun 40*4882a593Smuzhiyun /* 41*4882a593Smuzhiyun * Define LLC and SNAP constants. 42*4882a593Smuzhiyun */ 43*4882a593Smuzhiyun #define HIPPI_EXTENDED_SAP 0xAA 44*4882a593Smuzhiyun #define HIPPI_UI_CMD 0x03 45*4882a593Smuzhiyun 46*4882a593Smuzhiyun 47*4882a593Smuzhiyun /* 48*4882a593Smuzhiyun * Do we need to list some sort of ID's here? 49*4882a593Smuzhiyun */ 50*4882a593Smuzhiyun 51*4882a593Smuzhiyun /* 52*4882a593Smuzhiyun * HIPPI statistics collection data. 53*4882a593Smuzhiyun */ 54*4882a593Smuzhiyun 55*4882a593Smuzhiyun struct hipnet_statistics { 56*4882a593Smuzhiyun int rx_packets; /* total packets received */ 57*4882a593Smuzhiyun int tx_packets; /* total packets transmitted */ 58*4882a593Smuzhiyun int rx_errors; /* bad packets received */ 59*4882a593Smuzhiyun int tx_errors; /* packet transmit problems */ 60*4882a593Smuzhiyun int rx_dropped; /* no space in linux buffers */ 61*4882a593Smuzhiyun int tx_dropped; /* no space available in linux */ 62*4882a593Smuzhiyun 63*4882a593Smuzhiyun /* detailed rx_errors: */ 64*4882a593Smuzhiyun int rx_length_errors; 65*4882a593Smuzhiyun int rx_over_errors; /* receiver ring buff overflow */ 66*4882a593Smuzhiyun int rx_crc_errors; /* recved pkt with crc error */ 67*4882a593Smuzhiyun int rx_frame_errors; /* recv'd frame alignment error */ 68*4882a593Smuzhiyun int rx_fifo_errors; /* recv'r fifo overrun */ 69*4882a593Smuzhiyun int rx_missed_errors; /* receiver missed packet */ 70*4882a593Smuzhiyun 71*4882a593Smuzhiyun /* detailed tx_errors */ 72*4882a593Smuzhiyun int tx_aborted_errors; 73*4882a593Smuzhiyun int tx_carrier_errors; 74*4882a593Smuzhiyun int tx_fifo_errors; 75*4882a593Smuzhiyun int tx_heartbeat_errors; 76*4882a593Smuzhiyun int tx_window_errors; 77*4882a593Smuzhiyun }; 78*4882a593Smuzhiyun 79*4882a593Smuzhiyun 80*4882a593Smuzhiyun struct hippi_fp_hdr { 81*4882a593Smuzhiyun #if 0 82*4882a593Smuzhiyun __u8 ulp; /* must contain 4 */ 83*4882a593Smuzhiyun #if defined (__BIG_ENDIAN_BITFIELD) 84*4882a593Smuzhiyun __u8 d1_data_present:1; /* must be 1 */ 85*4882a593Smuzhiyun __u8 start_d2_burst_boundary:1; /* must be zero */ 86*4882a593Smuzhiyun __u8 reserved:6; /* must be zero */ 87*4882a593Smuzhiyun #if 0 88*4882a593Smuzhiyun __u16 reserved1:5; 89*4882a593Smuzhiyun __u16 d1_area_size:8; /* must be 3 */ 90*4882a593Smuzhiyun __u16 d2_offset:3; /* must be zero */ 91*4882a593Smuzhiyun #endif 92*4882a593Smuzhiyun #elif defined(__LITTLE_ENDIAN_BITFIELD) 93*4882a593Smuzhiyun __u8 reserved:6; /* must be zero */ 94*4882a593Smuzhiyun __u8 start_d2_burst_boundary:1; /* must be zero */ 95*4882a593Smuzhiyun __u8 d1_data_present:1; /* must be 1 */ 96*4882a593Smuzhiyun #if 0 97*4882a593Smuzhiyun __u16 d2_offset:3; /* must be zero */ 98*4882a593Smuzhiyun __u16 d1_area_size:8; /* must be 3 */ 99*4882a593Smuzhiyun __u16 reserved1:5; /* must be zero */ 100*4882a593Smuzhiyun #endif 101*4882a593Smuzhiyun #else 102*4882a593Smuzhiyun #error "Please fix <asm/byteorder.h>" 103*4882a593Smuzhiyun #endif 104*4882a593Smuzhiyun #else 105*4882a593Smuzhiyun __be32 fixed; 106*4882a593Smuzhiyun #endif 107*4882a593Smuzhiyun __be32 d2_size; 108*4882a593Smuzhiyun } __attribute__((packed)); 109*4882a593Smuzhiyun 110*4882a593Smuzhiyun struct hippi_le_hdr { 111*4882a593Smuzhiyun #if defined (__BIG_ENDIAN_BITFIELD) 112*4882a593Smuzhiyun __u8 fc:3; 113*4882a593Smuzhiyun __u8 double_wide:1; 114*4882a593Smuzhiyun __u8 message_type:4; 115*4882a593Smuzhiyun #elif defined(__LITTLE_ENDIAN_BITFIELD) 116*4882a593Smuzhiyun __u8 message_type:4; 117*4882a593Smuzhiyun __u8 double_wide:1; 118*4882a593Smuzhiyun __u8 fc:3; 119*4882a593Smuzhiyun #endif 120*4882a593Smuzhiyun __u8 dest_switch_addr[3]; 121*4882a593Smuzhiyun #if defined (__BIG_ENDIAN_BITFIELD) 122*4882a593Smuzhiyun __u8 dest_addr_type:4, 123*4882a593Smuzhiyun src_addr_type:4; 124*4882a593Smuzhiyun #elif defined(__LITTLE_ENDIAN_BITFIELD) 125*4882a593Smuzhiyun __u8 src_addr_type:4, 126*4882a593Smuzhiyun dest_addr_type:4; 127*4882a593Smuzhiyun #endif 128*4882a593Smuzhiyun __u8 src_switch_addr[3]; 129*4882a593Smuzhiyun __u16 reserved; 130*4882a593Smuzhiyun __u8 daddr[HIPPI_ALEN]; 131*4882a593Smuzhiyun __u16 locally_administered; 132*4882a593Smuzhiyun __u8 saddr[HIPPI_ALEN]; 133*4882a593Smuzhiyun } __attribute__((packed)); 134*4882a593Smuzhiyun 135*4882a593Smuzhiyun #define HIPPI_OUI_LEN 3 136*4882a593Smuzhiyun /* 137*4882a593Smuzhiyun * Looks like the dsap and ssap fields have been swapped by mistake in 138*4882a593Smuzhiyun * RFC 2067 "IP over HIPPI". 139*4882a593Smuzhiyun */ 140*4882a593Smuzhiyun struct hippi_snap_hdr { 141*4882a593Smuzhiyun __u8 dsap; /* always 0xAA */ 142*4882a593Smuzhiyun __u8 ssap; /* always 0xAA */ 143*4882a593Smuzhiyun __u8 ctrl; /* always 0x03 */ 144*4882a593Smuzhiyun __u8 oui[HIPPI_OUI_LEN]; /* organizational universal id (zero)*/ 145*4882a593Smuzhiyun __be16 ethertype; /* packet type ID field */ 146*4882a593Smuzhiyun } __attribute__((packed)); 147*4882a593Smuzhiyun 148*4882a593Smuzhiyun struct hippi_hdr { 149*4882a593Smuzhiyun struct hippi_fp_hdr fp; 150*4882a593Smuzhiyun struct hippi_le_hdr le; 151*4882a593Smuzhiyun struct hippi_snap_hdr snap; 152*4882a593Smuzhiyun } __attribute__((packed)); 153*4882a593Smuzhiyun 154*4882a593Smuzhiyun #endif /* _LINUX_IF_HIPPI_H */ 155