diff options
Diffstat (limited to 'include/linux/if_tr.h')
| -rw-r--r-- | include/linux/if_tr.h | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/include/linux/if_tr.h b/include/linux/if_tr.h new file mode 100644 index 00000000000..4fd451f81cc --- /dev/null +++ b/include/linux/if_tr.h @@ -0,0 +1,109 @@ +/* + * 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 ethernet addr */ +#define TR_HLEN (sizeof(struct trh_hdr)+sizeof(struct trllc)) +#define AC 0x10 +#define LLC_FRAME 0x40 +#if 0 +#define ETH_HLEN 14 /* Total octets in header. */ +#define ETH_ZLEN 60 /* Min. octets in frame sans FCS */ +#define ETH_DATA_LEN 1500 /* Max. octets in payload */ +#define ETH_FRAME_LEN 1514 /* Max. octets in frame sans FCS */ +#endif + + +/* 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 */ |