/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
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/*
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* INET An implementation of the TCP/IP protocol suite for the LINUX
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* operating system. INET is implemented using the BSD Socket
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* interface as the means of communication with the user level.
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*
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* Global definitions for Fibre Channel.
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*
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* Version: @(#)if_fc.h 0.0 11/20/98
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*
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* Author: Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
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* Donald Becker, <becker@super.org>
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* Peter De Schrijver, <stud11@cc4.kuleuven.ac.be>
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* Vineet Abraham, <vma@iol.unh.edu>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#ifndef _LINUX_IF_FC_H
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#define _LINUX_IF_FC_H
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#include <linux/types.h>
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#define FC_ALEN 6 /* Octets in one ethernet addr */
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#define FC_HLEN (sizeof(struct fch_hdr)+sizeof(struct fcllc))
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#define FC_ID_LEN 3 /* Octets in a Fibre Channel Address */
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/* LLC and SNAP constants */
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#define EXTENDED_SAP 0xAA
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#define UI_CMD 0x03
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/* This is NOT the Fibre Channel frame header. The FC frame header is
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* constructed in the driver as the Tachyon needs certain fields in
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* certains positions. So, it can't be generalized here.*/
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struct fch_hdr {
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__u8 daddr[FC_ALEN]; /* destination address */
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__u8 saddr[FC_ALEN]; /* source address */
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};
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/* This is a Fibre Channel LLC structure */
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struct fcllc {
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__u8 dsap; /* destination SAP */
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__u8 ssap; /* source SAP */
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__u8 llc; /* LLC control field */
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__u8 protid[3]; /* protocol id */
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__be16 ethertype; /* ether type field */
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};
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#endif /* _LINUX_IF_FC_H */
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