| 1 | /* |
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| 2 | * INET An implementation of the TCP/IP protocol suite for the LINUX |
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| 3 | * operating system. INET is implemented using the BSD Socket |
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| 4 | * interface as the means of communication with the user level. |
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| 5 | * |
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| 6 | * Global definitions for the Token-Ring IEEE 802.5 interface. |
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| 7 | * |
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| 8 | * Version: @(#)if_tr.h 0.0 07/11/94 |
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| 9 | * |
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| 10 | * Author: Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> |
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| 11 | * Donald Becker, <becker@super.org> |
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| 12 | * Peter De Schrijver, <stud11@cc4.kuleuven.ac.be> |
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| 13 | * |
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| 14 | * This program is free software; you can redistribute it and/or |
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| 15 | * modify it under the terms of the GNU General Public License |
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| 16 | * as published by the Free Software Foundation; either version |
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| 17 | * 2 of the License, or (at your option) any later version. |
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| 18 | */ |
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| 19 | #ifndef _LINUX_IF_TR_H |
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| 20 | #define _LINUX_IF_TR_H |
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| 21 | |
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| 22 | #include <linux/types.h> /* For __be16 */ |
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| 23 | |
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| 24 | /* IEEE 802.5 Token-Ring magic constants. The frame sizes omit the preamble |
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| 25 | and FCS/CRC (frame check sequence). */ |
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| 26 | #define TR_ALEN 6 /* Octets in one token-ring addr */ |
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| 27 | #define TR_HLEN (sizeof(struct trh_hdr)+sizeof(struct trllc)) |
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| 28 | #define AC 0x10 |
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| 29 | #define LLC_FRAME 0x40 |
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| 30 | |
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| 31 | /* LLC and SNAP constants */ |
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| 32 | #define EXTENDED_SAP 0xAA |
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| 33 | #define UI_CMD 0x03 |
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| 34 | |
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| 35 | /* This is an Token-Ring frame header. */ |
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| 36 | struct trh_hdr { |
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| 37 | __u8 ac; /* access control field */ |
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| 38 | __u8 fc; /* frame control field */ |
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| 39 | __u8 daddr[TR_ALEN]; /* destination address */ |
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| 40 | __u8 saddr[TR_ALEN]; /* source address */ |
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| 41 | __be16 rcf; /* route control field */ |
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| 42 | __be16 rseg[8]; /* routing registers */ |
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| 43 | }; |
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| 44 | |
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| 45 | /* This is an Token-Ring LLC structure */ |
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| 46 | struct trllc { |
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| 47 | __u8 dsap; /* destination SAP */ |
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| 48 | __u8 ssap; /* source SAP */ |
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| 49 | __u8 llc; /* LLC control field */ |
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| 50 | __u8 protid[3]; /* protocol id */ |
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| 51 | __be16 ethertype; /* ether type field */ |
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| 52 | }; |
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| 53 | |
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| 54 | /* Token-Ring statistics collection data. */ |
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| 55 | struct tr_statistics { |
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| 56 | unsigned long rx_packets; /* total packets received */ |
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| 57 | unsigned long tx_packets; /* total packets transmitted */ |
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| 58 | unsigned long rx_bytes; /* total bytes received */ |
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| 59 | unsigned long tx_bytes; /* total bytes transmitted */ |
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| 60 | unsigned long rx_errors; /* bad packets received */ |
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| 61 | unsigned long tx_errors; /* packet transmit problems */ |
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| 62 | unsigned long rx_dropped; /* no space in linux buffers */ |
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| 63 | unsigned long tx_dropped; /* no space available in linux */ |
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| 64 | unsigned long multicast; /* multicast packets received */ |
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| 65 | unsigned long transmit_collision; |
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| 66 | |
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| 67 | /* detailed Token-Ring errors. See IBM Token-Ring Network |
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| 68 | Architecture for more info */ |
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| 69 | |
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| 70 | unsigned long line_errors; |
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| 71 | unsigned long internal_errors; |
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| 72 | unsigned long burst_errors; |
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| 73 | unsigned long A_C_errors; |
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| 74 | unsigned long abort_delimiters; |
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| 75 | unsigned long lost_frames; |
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| 76 | unsigned long recv_congest_count; |
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| 77 | unsigned long frame_copied_errors; |
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| 78 | unsigned long frequency_errors; |
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| 79 | unsigned long token_errors; |
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| 80 | unsigned long dummy1; |
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| 81 | }; |
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| 82 | |
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| 83 | /* source routing stuff */ |
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| 84 | #define TR_RII 0x80 |
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| 85 | #define TR_RCF_DIR_BIT 0x80 |
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| 86 | #define TR_RCF_LEN_MASK 0x1f00 |
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| 87 | #define TR_RCF_BROADCAST 0x8000 /* all-routes broadcast */ |
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| 88 | #define TR_RCF_LIMITED_BROADCAST 0xC000 /* single-route broadcast */ |
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| 89 | #define TR_RCF_FRAME2K 0x20 |
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| 90 | #define TR_RCF_BROADCAST_MASK 0xC000 |
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| 91 | #define TR_MAXRIFLEN 18 |
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| 92 | |
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| 93 | #endif /* _LINUX_IF_TR_H */ |
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