if_fc.h 1.6 KB

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