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e2be04c7 | 1 | /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ |
1da177e4 LT |
2 | /* |
3 | * INET An implementation of the TCP/IP protocol suite for the LINUX | |
4 | * operating system. INET is implemented using the BSD Socket | |
5 | * interface as the means of communication with the user level. | |
6 | * | |
7 | * Global definitions for Fibre Channel. | |
8 | * | |
9 | * Version: @(#)if_fc.h 0.0 11/20/98 | |
10 | * | |
11 | * Author: Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> | |
12 | * Donald Becker, <becker@super.org> | |
13 | * Peter De Schrijver, <stud11@cc4.kuleuven.ac.be> | |
14 | * Vineet Abraham, <vma@iol.unh.edu> | |
15 | * | |
16 | * This program is free software; you can redistribute it and/or | |
17 | * modify it under the terms of the GNU General Public License | |
18 | * as published by the Free Software Foundation; either version | |
19 | * 2 of the License, or (at your option) any later version. | |
20 | */ | |
21 | #ifndef _LINUX_IF_FC_H | |
22 | #define _LINUX_IF_FC_H | |
23 | ||
ba716138 | 24 | #include <linux/types.h> |
1da177e4 LT |
25 | |
26 | #define FC_ALEN 6 /* Octets in one ethernet addr */ | |
27 | #define FC_HLEN (sizeof(struct fch_hdr)+sizeof(struct fcllc)) | |
28 | #define FC_ID_LEN 3 /* Octets in a Fibre Channel Address */ | |
29 | ||
30 | /* LLC and SNAP constants */ | |
31 | #define EXTENDED_SAP 0xAA | |
32 | #define UI_CMD 0x03 | |
33 | ||
34 | /* This is NOT the Fibre Channel frame header. The FC frame header is | |
35 | * constructed in the driver as the Tachyon needs certain fields in | |
36 | * certains positions. So, it can't be generalized here.*/ | |
37 | ||
38 | struct fch_hdr { | |
39 | __u8 daddr[FC_ALEN]; /* destination address */ | |
40 | __u8 saddr[FC_ALEN]; /* source address */ | |
41 | }; | |
42 | ||
43 | /* This is a Fibre Channel LLC structure */ | |
44 | struct fcllc { | |
45 | __u8 dsap; /* destination SAP */ | |
46 | __u8 ssap; /* source SAP */ | |
47 | __u8 llc; /* LLC control field */ | |
48 | __u8 protid[3]; /* protocol id */ | |
57bf1451 | 49 | __be16 ethertype; /* ether type field */ |
1da177e4 LT |
50 | }; |
51 | ||
52 | #endif /* _LINUX_IF_FC_H */ |