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_MMAP_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
  45 /*
  46  * Misc constants. Please retain them as multiples of 8!
  47  * Otherwise 32-64 bit interactions will be messed up :)
  48  */
  49 #define ORANGEFS_NAME_LEN               0x00000100
  50 #define ORANGEFS_MAX_DEBUG_STRING_LEN   0x00000400
  51 #define ORANGEFS_MAX_DEBUG_ARRAY_LEN    0x00000800
  52
  53 /*
  54  * MAX_DIRENT_COUNT cannot be larger than ORANGEFS_REQ_LIMIT_LISTATTR.
  55  * The value of ORANGEFS_REQ_LIMIT_LISTATTR has been changed from 113 to 60
  56  * to accomodate an attribute object with mirrored handles.
  57  * MAX_DIRENT_COUNT is replaced by MAX_DIRENT_COUNT_READDIR and
  58  * MAX_DIRENT_COUNT_READDIRPLUS, since readdir doesn't trigger a listattr
  59  * but readdirplus might.
  60 */
  61 #define MAX_DIRENT_COUNT_READDIR       0x00000060
  62 #define MAX_DIRENT_COUNT_READDIRPLUS   0x0000003C
  63
  64 #include "upcall.h"
  65 #include "downcall.h"
  66
  67 /*
  68  * These macros differ from proto macros in that they don't do any
  69  * byte-swappings and are used to ensure that kernel-clientcore interactions
  70  * don't cause any unaligned accesses etc on 64 bit machines
  71  */
  72 #ifndef roundup4
  73 #define roundup4(x) (((x)+3) & ~3)
  74 #endif
  75
  76 #ifndef roundup8
  77 #define roundup8(x) (((x)+7) & ~7)
  78 #endif
  79
  80 struct read_write_x {
  81         __s64 off;
  82         __s64 len;
  83 };
  84
  85 #endif