[linux-block.git] / include / linux / if_tr.h

/*
 * 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/config.h>
#include <linux/skbuff.h>

static inline struct trh_hdr *tr_hdr(const struct sk_buff *skb)
{
	return (struct trh_hdr *)skb->mac.raw;
}
#ifdef CONFIG_SYSCTL
extern struct ctl_table tr_table[];
#endif
#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 */
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
03722adc TR	22	#include <asm/byteorder.h> /* For __be16 */
03722adc TR	23
1da177e4 LT	24	/* IEEE 802.5 Token-Ring magic constants. The frame sizes omit the preamble
1da177e4 LT	25	and FCS/CRC (frame check sequence). */
82d1542c JM	26	#define TR_ALEN 6 /* Octets in one token-ring addr */
	27	#define TR_HLEN (sizeof(struct trh_hdr)+sizeof(struct trllc))
	28	#define AC 0x10
	29	#define LLC_FRAME 0x40
1da177e4 LT	30
1da177e4 LT	31	/* LLC and SNAP constants */
82d1542c JM	32	#define EXTENDED_SAP 0xAA
82d1542c JM	33	#define UI_CMD 0x03
1da177e4 LT	34
	35	/* This is an Token-Ring frame header. */
	36	struct trh_hdr {
	37	__u8 ac; /* access control field */
	38	__u8 fc; /* frame control field */
	39	__u8 daddr[TR_ALEN]; /* destination address */
	40	__u8 saddr[TR_ALEN]; /* source address */
c6b33653 AD	41	__be16 rcf; /* route control field */
c6b33653 AD	42	__be16 rseg[8]; /* routing registers */
1da177e4 LT	43	};
	44
	45	#ifdef __KERNEL__
20380731	46	#include <linux/config.h>
1da177e4 LT	47	#include <linux/skbuff.h>
	48
	49	static inline struct trh_hdr tr_hdr(const struct sk_buff skb)
	50	{
	51	return (struct trh_hdr *)skb->mac.raw;
	52	}
20380731 ACM	53	#ifdef CONFIG_SYSCTL
	54	extern struct ctl_table tr_table[];
	55	#endif
1da177e4 LT	56	#endif
	57
	58	/* This is an Token-Ring LLC structure */
	59	struct trllc {
	60	__u8 dsap; /* destination SAP */
	61	__u8 ssap; /* source SAP */
	62	__u8 llc; /* LLC control field */
	63	__u8 protid[3]; /* protocol id */
c6b33653	64	__be16 ethertype; /* ether type field */
1da177e4 LT	65	};
	66
	67	/* Token-Ring statistics collection data. */
	68	struct tr_statistics {
	69	unsigned long rx_packets; /* total packets received */
	70	unsigned long tx_packets; /* total packets transmitted */
	71	unsigned long rx_bytes; /* total bytes received */
	72	unsigned long tx_bytes; /* total bytes transmitted */
	73	unsigned long rx_errors; /* bad packets received */
	74	unsigned long tx_errors; /* packet transmit problems */
	75	unsigned long rx_dropped; /* no space in linux buffers */
	76	unsigned long tx_dropped; /* no space available in linux */
	77	unsigned long multicast; /* multicast packets received */
	78	unsigned long transmit_collision;
	79
	80	/* detailed Token-Ring errors. See IBM Token-Ring Network
	81	Architecture for more info */
	82
	83	unsigned long line_errors;
	84	unsigned long internal_errors;
	85	unsigned long burst_errors;
	86	unsigned long A_C_errors;
	87	unsigned long abort_delimiters;
	88	unsigned long lost_frames;
	89	unsigned long recv_congest_count;
	90	unsigned long frame_copied_errors;
	91	unsigned long frequency_errors;
	92	unsigned long token_errors;
	93	unsigned long dummy1;
	94	};
	95
	96	/* source routing stuff */
82d1542c JM	97	#define TR_RII 0x80
	98	#define TR_RCF_DIR_BIT 0x80
	99	#define TR_RCF_LEN_MASK 0x1f00
	100	#define TR_RCF_BROADCAST 0x8000 /* all-routes broadcast */
	101	#define TR_RCF_LIMITED_BROADCAST 0xC000 /* single-route broadcast */
	102	#define TR_RCF_FRAME2K 0x20
	103	#define TR_RCF_BROADCAST_MASK 0xC000
	104	#define TR_MAXRIFLEN 18
1da177e4 LT	105
1da177e4 LT	106	#endif /* _LINUX_IF_TR_H */