projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 Token-Ring IEEE 802.5 interface. | |
| 7 | * | |
| 8 | * Version: @(#)if_tr.h 0.0 07/11/94 | |
| 9 | * | |
| 10 | * Author: Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> | |
| 11 | * Donald Becker, <becker@super.org> | |
| 82d1542c | 12 | * Peter De Schrijver, <stud11@cc4.kuleuven.ac.be> |
| 1da177e4 LT |
13 | * |
| 14 | * This program is free software; you can redistribute it and/or | |
| 15 | * modify it under the terms of the GNU General Public License | |
| 16 | * as published by the Free Software Foundation; either version | |
| 17 | * 2 of the License, or (at your option) any later version. | |
| 18 | */ | |
| 19 | #ifndef _LINUX_IF_TR_H | |
| 20 | #define _LINUX_IF_TR_H | |
| 21 | ||
| 1da177e4 LT |
22 | /* IEEE 802.5 Token-Ring magic constants. The frame sizes omit the preamble |
| 23 | and FCS/CRC (frame check sequence). */ | |
| 82d1542c JM |
24 | #define TR_ALEN 6 /* Octets in one token-ring addr */ |
| 25 | #define TR_HLEN (sizeof(struct trh_hdr)+sizeof(struct trllc)) | |
| 26 | #define AC 0x10 | |
| 27 | #define LLC_FRAME 0x40 | |
| 1da177e4 LT |
28 | |
| 29 | /* LLC and SNAP constants */ | |
| 82d1542c JM |
30 | #define EXTENDED_SAP 0xAA |
| 31 | #define UI_CMD 0x03 | |
| 1da177e4 LT |
32 | |
| 33 | /* This is an Token-Ring frame header. */ | |
| 34 | struct trh_hdr { | |
| 35 | __u8 ac; /* access control field */ | |
| 36 | __u8 fc; /* frame control field */ | |
| 37 | __u8 daddr[TR_ALEN]; /* destination address */ | |
| 38 | __u8 saddr[TR_ALEN]; /* source address */ | |
| c6b33653 AD |
39 | __be16 rcf; /* route control field */ |
| 40 | __be16 rseg[8]; /* routing registers */ | |
| 1da177e4 LT |
41 | }; |
| 42 | ||
| 43 | #ifdef __KERNEL__ | |
| 44 | #include <linux/skbuff.h> | |
| 45 | ||
| 46 | static inline struct trh_hdr *tr_hdr(const struct sk_buff *skb) | |
| 47 | { | |
| 48 | return (struct trh_hdr *)skb->mac.raw; | |
| 49 | } | |
| 50 | #endif | |
| 51 | ||
| 52 | /* This is an Token-Ring LLC structure */ | |
| 53 | struct trllc { | |
| 54 | __u8 dsap; /* destination SAP */ | |
| 55 | __u8 ssap; /* source SAP */ | |
| 56 | __u8 llc; /* LLC control field */ | |
| 57 | __u8 protid[3]; /* protocol id */ | |
| c6b33653 | 58 | __be16 ethertype; /* ether type field */ |
| 1da177e4 LT |
59 | }; |
| 60 | ||
| 61 | /* Token-Ring statistics collection data. */ | |
| 62 | struct tr_statistics { | |
| 63 | unsigned long rx_packets; /* total packets received */ | |
| 64 | unsigned long tx_packets; /* total packets transmitted */ | |
| 65 | unsigned long rx_bytes; /* total bytes received */ | |
| 66 | unsigned long tx_bytes; /* total bytes transmitted */ | |
| 67 | unsigned long rx_errors; /* bad packets received */ | |
| 68 | unsigned long tx_errors; /* packet transmit problems */ | |
| 69 | unsigned long rx_dropped; /* no space in linux buffers */ | |
| 70 | unsigned long tx_dropped; /* no space available in linux */ | |
| 71 | unsigned long multicast; /* multicast packets received */ | |
| 72 | unsigned long transmit_collision; | |
| 73 | ||
| 74 | /* detailed Token-Ring errors. See IBM Token-Ring Network | |
| 75 | Architecture for more info */ | |
| 76 | ||
| 77 | unsigned long line_errors; | |
| 78 | unsigned long internal_errors; | |
| 79 | unsigned long burst_errors; | |
| 80 | unsigned long A_C_errors; | |
| 81 | unsigned long abort_delimiters; | |
| 82 | unsigned long lost_frames; | |
| 83 | unsigned long recv_congest_count; | |
| 84 | unsigned long frame_copied_errors; | |
| 85 | unsigned long frequency_errors; | |
| 86 | unsigned long token_errors; | |
| 87 | unsigned long dummy1; | |
| 88 | }; | |
| 89 | ||
| 90 | /* source routing stuff */ | |
| 82d1542c JM |
91 | #define TR_RII 0x80 |
| 92 | #define TR_RCF_DIR_BIT 0x80 | |
| 93 | #define TR_RCF_LEN_MASK 0x1f00 | |
| 94 | #define TR_RCF_BROADCAST 0x8000 /* all-routes broadcast */ | |
| 95 | #define TR_RCF_LIMITED_BROADCAST 0xC000 /* single-route broadcast */ | |
| 96 | #define TR_RCF_FRAME2K 0x20 | |
| 97 | #define TR_RCF_BROADCAST_MASK 0xC000 | |
| 98 | #define TR_MAXRIFLEN 18 | |
| 1da177e4 LT |
99 | |
| 100 | #endif /* _LINUX_IF_TR_H */ |