| /* |
| * 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 |
| |
| #include <asm/byteorder.h> /* For __be16 */ |
| |
| /* 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 */ |
| __be16 rcf; /* route control field */ |
| __be16 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 */ |
| __be16 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 */ |
