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/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
/*
* 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 */
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