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422 | giacomo | 1 | /* |
2 | * INET An implementation of the TCP/IP protocol suite for the LINUX |
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3 | * operating system. INET is implemented using the BSD Socket |
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4 | * interface as the means of communication with the user level. |
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5 | * |
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6 | * Global definitions for Fibre Channel. |
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7 | * |
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8 | * Version: @(#)if_fc.h 0.0 11/20/98 |
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9 | * |
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10 | * Author: Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> |
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11 | * Donald Becker, <becker@super.org> |
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12 | * Peter De Schrijver, <stud11@cc4.kuleuven.ac.be> |
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13 | * Vineet Abraham, <vma@iol.unh.edu> |
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14 | * |
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15 | * This program is free software; you can redistribute it and/or |
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16 | * modify it under the terms of the GNU General Public License |
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17 | * as published by the Free Software Foundation; either version |
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18 | * 2 of the License, or (at your option) any later version. |
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19 | */ |
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20 | #ifndef _LINUX_IF_FC_H |
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21 | #define _LINUX_IF_FC_H |
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22 | |||
23 | |||
24 | #define FC_ALEN 6 /* Octets in one ethernet addr */ |
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25 | #define FC_HLEN (sizeof(struct fch_hdr)+sizeof(struct fcllc)) |
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26 | #define FC_ID_LEN 3 /* Octets in a Fibre Channel Address */ |
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27 | |||
28 | /* LLC and SNAP constants */ |
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29 | #define EXTENDED_SAP 0xAA |
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30 | #define UI_CMD 0x03 |
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31 | |||
32 | /* This is NOT the Fibre Channel frame header. The FC frame header is |
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33 | * constructed in the driver as the Tachyon needs certain fields in |
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34 | * certains positions. So, it can't be generalized here.*/ |
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35 | |||
36 | struct fch_hdr { |
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37 | __u8 daddr[FC_ALEN]; /* destination address */ |
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38 | __u8 saddr[FC_ALEN]; /* source address */ |
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39 | }; |
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40 | |||
41 | /* This is a Fibre Channel LLC structure */ |
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42 | struct fcllc { |
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43 | __u8 dsap; /* destination SAP */ |
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44 | __u8 ssap; /* source SAP */ |
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45 | __u8 llc; /* LLC control field */ |
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46 | __u8 protid[3]; /* protocol id */ |
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47 | __u16 ethertype; /* ether type field */ |
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48 | }; |
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49 | |||
50 | #endif /* _LINUX_IF_FC_H */ |