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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 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 */