/*
   * 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 Fibre Channel.
   *
   * Version:	@(#)if_fc.h	0.0	11/20/98
   *
   * Author:	Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
   *		Donald Becker, <becker@super.org>
   *    Peter De Schrijver, <stud11@cc4.kuleuven.ac.be>
   *	  Vineet Abraham, <vma@iol.unh.edu>
   *
   *		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_FC_H
  #define _LINUX_IF_FC_H

  #include <linux/types.h>

  
  #define FC_ALEN	6		/* Octets in one ethernet addr	 */
  #define FC_HLEN   (sizeof(struct fch_hdr)+sizeof(struct fcllc))
  #define FC_ID_LEN 3		/* Octets in a Fibre Channel Address */
  
  /* LLC and SNAP constants */
  #define EXTENDED_SAP 0xAA
  #define UI_CMD       0x03
  
  /* This is NOT the Fibre Channel frame header. The FC frame header is
   *  constructed in the driver as the Tachyon needs certain fields in
   *  certains positions. So, it can't be generalized here.*/
  
  struct fch_hdr {
  	__u8  daddr[FC_ALEN];		/* destination address */
  	__u8  saddr[FC_ALEN];		/* source address */
  };
  
  /* This is a Fibre Channel LLC structure */
  struct fcllc {
  	__u8  dsap;			/* destination SAP */
  	__u8  ssap;			/* source SAP */
  	__u8  llc;			/* LLC control field */
  	__u8  protid[3];		/* protocol id */

  	__be16 ethertype;		/* ether type field */

  };
  
  #endif	/* _LINUX_IF_FC_H */