ceph/src/client/ioctl.h

   1 #ifndef FS_CEPH_IOCTL_H
   2 #define FS_CEPH_IOCTL_H
   3
   4 #include "include/int_types.h"
   5
   6 #if defined(__linux__)
   7 #include <linux/ioctl.h>
   8 #include <linux/types.h>
   9 #elif defined(DARWIN) || defined(__FreeBSD__)
  10 #include <sys/ioctl.h>
  11 #include <sys/types.h>
  12 #endif
  13
  14 #define CEPH_IOCTL_MAGIC 0x97
  15
  16 /* just use u64 to align sanely on all archs */
  17 struct ceph_ioctl_layout {
  18         __u64 stripe_unit, stripe_count, object_size;
  19         __u64 data_pool;
  20         __s64 unused;
  21 };
  22
  23 #define CEPH_IOC_GET_LAYOUT _IOR(CEPH_IOCTL_MAGIC, 1,           \
  24                                    struct ceph_ioctl_layout)
  25 #define CEPH_IOC_SET_LAYOUT _IOW(CEPH_IOCTL_MAGIC, 2,           \
  26                                    struct ceph_ioctl_layout)
  27 #define CEPH_IOC_SET_LAYOUT_POLICY _IOW(CEPH_IOCTL_MAGIC, 5,    \
  28                                    struct ceph_ioctl_layout)
  29
  30 /*
  31  * Extract identity, address of the OSD and object storing a given
  32  * file offset.
  33  */
  34 struct ceph_ioctl_dataloc {
  35         __u64 file_offset;           /* in+out: file offset */
  36         __u64 object_offset;         /* out: offset in object */
  37         __u64 object_no;             /* out: object # */
  38         __u64 object_size;           /* out: object size */
  39         char object_name[64];        /* out: object name */
  40         __u64 block_offset;          /* out: offset in block */
  41         __u64 block_size;            /* out: block length */
  42         __s64 osd;                   /* out: osd # */
  43         struct sockaddr_storage osd_addr; /* out: osd address */
  44 };
  45
  46 #define CEPH_IOC_GET_DATALOC _IOWR(CEPH_IOCTL_MAGIC, 3, \
  47                                    struct ceph_ioctl_dataloc)
  48
  49 #define CEPH_IOC_LAZYIO _IO(CEPH_IOCTL_MAGIC, 4)
  50
  51 #endif