fs/orangefs/orangefs-dev-proto.h

   1 /*
   2  * (C) 2001 Clemson University and The University of Chicago
   3  *
   4  * See COPYING in top-level directory.
   5  */
   6
   7 #ifndef _ORANGEFS_DEV_PROTO_H
   8 #define _ORANGEFS_DEV_PROTO_H
   9
  10 /*
  11  * types and constants shared between user space and kernel space for
  12  * device interaction using a common protocol
  13  */
  14
  15 /*
  16  * valid orangefs kernel operation types
  17  */
  18 #define ORANGEFS_VFS_OP_INVALID           0xFF000000
  19 #define ORANGEFS_VFS_OP_FILE_IO        0xFF000001
  20 #define ORANGEFS_VFS_OP_LOOKUP         0xFF000002
  21 #define ORANGEFS_VFS_OP_CREATE         0xFF000003
  22 #define ORANGEFS_VFS_OP_GETATTR        0xFF000004
  23 #define ORANGEFS_VFS_OP_REMOVE         0xFF000005
  24 #define ORANGEFS_VFS_OP_MKDIR          0xFF000006
  25 #define ORANGEFS_VFS_OP_READDIR        0xFF000007
  26 #define ORANGEFS_VFS_OP_SETATTR        0xFF000008
  27 #define ORANGEFS_VFS_OP_SYMLINK        0xFF000009
  28 #define ORANGEFS_VFS_OP_RENAME         0xFF00000A
  29 #define ORANGEFS_VFS_OP_STATFS         0xFF00000B
  30 #define ORANGEFS_VFS_OP_TRUNCATE       0xFF00000C
  31 #define ORANGEFS_VFS_OP_RA_FLUSH       0xFF00000D
  32 #define ORANGEFS_VFS_OP_FS_MOUNT       0xFF00000E
  33 #define ORANGEFS_VFS_OP_FS_UMOUNT      0xFF00000F
  34 #define ORANGEFS_VFS_OP_GETXATTR       0xFF000010
  35 #define ORANGEFS_VFS_OP_SETXATTR          0xFF000011
  36 #define ORANGEFS_VFS_OP_LISTXATTR         0xFF000012
  37 #define ORANGEFS_VFS_OP_REMOVEXATTR       0xFF000013
  38 #define ORANGEFS_VFS_OP_PARAM          0xFF000014
  39 #define ORANGEFS_VFS_OP_PERF_COUNT     0xFF000015
  40 #define ORANGEFS_VFS_OP_CANCEL            0xFF00EE00
  41 #define ORANGEFS_VFS_OP_FSYNC          0xFF00EE01
  42 #define ORANGEFS_VFS_OP_FSKEY             0xFF00EE02
  43 #define ORANGEFS_VFS_OP_READDIRPLUS       0xFF00EE03
  44 #define ORANGEFS_VFS_OP_FEATURES        0xFF00EE05 /* 2.9.6 */
  45
  46 /* features is a 64-bit unsigned bitmask */
  47 #define ORANGEFS_FEATURE_READAHEAD 1
  48
  49 /*
  50  * Misc constants. Please retain them as multiples of 8!
  51  * Otherwise 32-64 bit interactions will be messed up :)
  52  */
  53 #define ORANGEFS_MAX_DEBUG_STRING_LEN   0x00000800
  54
  55 /*
  56  * The maximum number of directory entries in a single request is 96.
  57  * XXX: Why can this not be higher. The client-side code can handle up to 512.
  58  * XXX: What happens if we expect more than the client can return?
  59  */
  60 #define ORANGEFS_MAX_DIRENT_COUNT_READDIR 96
  61
  62 #include "upcall.h"
  63 #include "downcall.h"
  64
  65 #endif