| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame^] | 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 */ |