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 Fibre Channel.
7 *
8 * Version: @(#)if_fc.h 0.0 11/20/98
9 *
10 * Author: Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
11 * Donald Becker, <becker@super.org>
12 * Peter De Schrijver, <stud11@cc4.kuleuven.ac.be>
13 * Vineet Abraham, <vma@iol.unh.edu>
14 *
15 * This program is free software; you can redistribute it and/or
16 * modify it under the terms of the GNU General Public License
17 * as published by the Free Software Foundation; either version
18 * 2 of the License, or (at your option) any later version.
19 */
20 #ifndef _LINUX_IF_FC_H
21 #define _LINUX_IF_FC_H
22
23
24 #define FC_ALEN 6 /* Octets in one ethernet addr */
25 #define FC_HLEN (sizeof(struct fch_hdr)+sizeof(struct fcllc))
26 #define FC_ID_LEN 3 /* Octets in a Fibre Channel Address */
27
28 /* LLC and SNAP constants */
29 #define EXTENDED_SAP 0xAA
30 #define UI_CMD 0x03
31
32 /* This is NOT the Fibre Channel frame header. The FC frame header is
33 * constructed in the driver as the Tachyon needs certain fields in
34 * certains positions. So, it can't be generalized here.*/
35
36 struct fch_hdr {
37 __u8 daddr[FC_ALEN]; /* destination address */
38 __u8 saddr[FC_ALEN]; /* source address */
39 };
40
41 /* This is a Fibre Channel LLC structure */
42 struct fcllc {
43 __u8 dsap; /* destination SAP */
44 __u8 ssap; /* source SAP */
45 __u8 llc; /* LLC control field */
46 __u8 protid[3]; /* protocol id */
47 __u16 ethertype; /* ether type field */
48 };
49
50 #endif /* _LINUX_IF_FC_H */
51
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