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 #include <linux/types.h> 24 25 #define FC_ALEN 6 /* Octets in one ethernet addr */ 26 #define FC_HLEN (sizeof(struct fch_hdr)+sizeof(struct fcllc)) 27 #define FC_ID_LEN 3 /* Octets in a Fibre Channel Address */ 28 29 /* LLC and SNAP constants */ 30 #define EXTENDED_SAP 0xAA 31 #define UI_CMD 0x03 32 33 /* This is NOT the Fibre Channel frame header. The FC frame header is 34 * constructed in the driver as the Tachyon needs certain fields in 35 * certains positions. So, it can't be generalized here.*/ 36 37 struct fch_hdr { 38 __u8 daddr[FC_ALEN]; /* destination address */ 39 __u8 saddr[FC_ALEN]; /* source address */ 40 }; 41 42 /* This is a Fibre Channel LLC structure */ 43 struct fcllc { 44 __u8 dsap; /* destination SAP */ 45 __u8 ssap; /* source SAP */ 46 __u8 llc; /* LLC control field */ 47 __u8 protid[3]; /* protocol id */ 48 __be16 ethertype; /* ether type field */ 49 }; 50 51 #endif /* _LINUX_IF_FC_H */ 52