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- /*
- * INET An implementation of the TCP/IP protocol suite for the LINUX
- * operating system. INET is implemented using the BSD Socket
- * interface as the means of communication with the user level.
- *
- * Global definitions for the Token-Ring IEEE 802.5 interface.
- *
- * Version: @(#)if_tr.h 0.0 07/11/94
- *
- * Author: Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
- * Donald Becker, <becker@super.org>
- * Peter De Schrijver, <stud11@cc4.kuleuven.ac.be>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
- #ifndef _LINUX_IF_TR_H
- #define _LINUX_IF_TR_H
- /* IEEE 802.5 Token-Ring magic constants. The frame sizes omit the preamble
- and FCS/CRC (frame check sequence). */
- #define TR_ALEN 6 /* Octets in one token-ring addr */
- #define TR_HLEN (sizeof(struct trh_hdr)+sizeof(struct trllc))
- #define AC 0x10
- #define LLC_FRAME 0x40
- /* LLC and SNAP constants */
- #define EXTENDED_SAP 0xAA
- #define UI_CMD 0x03
- /* This is an Token-Ring frame header. */
- struct trh_hdr {
- __u8 ac; /* access control field */
- __u8 fc; /* frame control field */
- __u8 daddr[TR_ALEN]; /* destination address */
- __u8 saddr[TR_ALEN]; /* source address */
- __u16 rcf; /* route control field */
- __u16 rseg[8]; /* routing registers */
- };
- #ifdef __KERNEL__
- #include <linux/skbuff.h>
- static inline struct trh_hdr *tr_hdr(const struct sk_buff *skb)
- {
- return (struct trh_hdr *)skb->mac.raw;
- }
- #endif
- /* This is an Token-Ring LLC structure */
- struct trllc {
- __u8 dsap; /* destination SAP */
- __u8 ssap; /* source SAP */
- __u8 llc; /* LLC control field */
- __u8 protid[3]; /* protocol id */
- __u16 ethertype; /* ether type field */
- };
- /* Token-Ring statistics collection data. */
- struct tr_statistics {
- unsigned long rx_packets; /* total packets received */
- unsigned long tx_packets; /* total packets transmitted */
- unsigned long rx_bytes; /* total bytes received */
- unsigned long tx_bytes; /* total bytes transmitted */
- unsigned long rx_errors; /* bad packets received */
- unsigned long tx_errors; /* packet transmit problems */
- unsigned long rx_dropped; /* no space in linux buffers */
- unsigned long tx_dropped; /* no space available in linux */
- unsigned long multicast; /* multicast packets received */
- unsigned long transmit_collision;
- /* detailed Token-Ring errors. See IBM Token-Ring Network
- Architecture for more info */
- unsigned long line_errors;
- unsigned long internal_errors;
- unsigned long burst_errors;
- unsigned long A_C_errors;
- unsigned long abort_delimiters;
- unsigned long lost_frames;
- unsigned long recv_congest_count;
- unsigned long frame_copied_errors;
- unsigned long frequency_errors;
- unsigned long token_errors;
- unsigned long dummy1;
- };
- /* source routing stuff */
- #define TR_RII 0x80
- #define TR_RCF_DIR_BIT 0x80
- #define TR_RCF_LEN_MASK 0x1f00
- #define TR_RCF_BROADCAST 0x8000 /* all-routes broadcast */
- #define TR_RCF_LIMITED_BROADCAST 0xC000 /* single-route broadcast */
- #define TR_RCF_FRAME2K 0x20
- #define TR_RCF_BROADCAST_MASK 0xC000
- #define TR_MAXRIFLEN 18
- #endif /* _LINUX_IF_TR_H */
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