aboutsummaryrefslogtreecommitdiffstats
path: root/include/linux/dm-ioctl.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/dm-ioctl.h')
-rw-r--r--include/linux/dm-ioctl.h17
1 files changed, 15 insertions, 2 deletions
diff --git a/include/linux/dm-ioctl.h b/include/linux/dm-ioctl.h
index fa75ba0d635e..c67c6786612a 100644
--- a/include/linux/dm-ioctl.h
+++ b/include/linux/dm-ioctl.h
@@ -80,6 +80,16 @@
80 * 80 *
81 * DM_TARGET_MSG: 81 * DM_TARGET_MSG:
82 * Pass a message string to the target at a specific offset of a device. 82 * Pass a message string to the target at a specific offset of a device.
83 *
84 * DM_DEV_SET_GEOMETRY:
85 * Set the geometry of a device by passing in a string in this format:
86 *
87 * "cylinders heads sectors_per_track start_sector"
88 *
89 * Beware that CHS geometry is nearly obsolete and only provided
90 * for compatibility with dm devices that can be booted by a PC
91 * BIOS. See struct hd_geometry for range limits. Also note that
92 * the geometry is erased if the device size changes.
83 */ 93 */
84 94
85/* 95/*
@@ -218,6 +228,7 @@ enum {
218 /* Added later */ 228 /* Added later */
219 DM_LIST_VERSIONS_CMD, 229 DM_LIST_VERSIONS_CMD,
220 DM_TARGET_MSG_CMD, 230 DM_TARGET_MSG_CMD,
231 DM_DEV_SET_GEOMETRY_CMD
221}; 232};
222 233
223/* 234/*
@@ -247,6 +258,7 @@ typedef char ioctl_struct[308];
247#define DM_TABLE_STATUS_32 _IOWR(DM_IOCTL, DM_TABLE_STATUS_CMD, ioctl_struct) 258#define DM_TABLE_STATUS_32 _IOWR(DM_IOCTL, DM_TABLE_STATUS_CMD, ioctl_struct)
248#define DM_LIST_VERSIONS_32 _IOWR(DM_IOCTL, DM_LIST_VERSIONS_CMD, ioctl_struct) 259#define DM_LIST_VERSIONS_32 _IOWR(DM_IOCTL, DM_LIST_VERSIONS_CMD, ioctl_struct)
249#define DM_TARGET_MSG_32 _IOWR(DM_IOCTL, DM_TARGET_MSG_CMD, ioctl_struct) 260#define DM_TARGET_MSG_32 _IOWR(DM_IOCTL, DM_TARGET_MSG_CMD, ioctl_struct)
261#define DM_DEV_SET_GEOMETRY_32 _IOWR(DM_IOCTL, DM_DEV_SET_GEOMETRY_CMD, ioctl_struct)
250#endif 262#endif
251 263
252#define DM_IOCTL 0xfd 264#define DM_IOCTL 0xfd
@@ -270,11 +282,12 @@ typedef char ioctl_struct[308];
270#define DM_LIST_VERSIONS _IOWR(DM_IOCTL, DM_LIST_VERSIONS_CMD, struct dm_ioctl) 282#define DM_LIST_VERSIONS _IOWR(DM_IOCTL, DM_LIST_VERSIONS_CMD, struct dm_ioctl)
271 283
272#define DM_TARGET_MSG _IOWR(DM_IOCTL, DM_TARGET_MSG_CMD, struct dm_ioctl) 284#define DM_TARGET_MSG _IOWR(DM_IOCTL, DM_TARGET_MSG_CMD, struct dm_ioctl)
285#define DM_DEV_SET_GEOMETRY _IOWR(DM_IOCTL, DM_DEV_SET_GEOMETRY_CMD, struct dm_ioctl)
273 286
274#define DM_VERSION_MAJOR 4 287#define DM_VERSION_MAJOR 4
275#define DM_VERSION_MINOR 5 288#define DM_VERSION_MINOR 6
276#define DM_VERSION_PATCHLEVEL 0 289#define DM_VERSION_PATCHLEVEL 0
277#define DM_VERSION_EXTRA "-ioctl (2005-10-04)" 290#define DM_VERSION_EXTRA "-ioctl (2006-02-17)"
278 291
279/* Status bits */ 292/* Status bits */
280#define DM_READONLY_FLAG (1 << 0) /* In/Out */ 293#define DM_READONLY_FLAG (1 << 0) /* In/Out */