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authorRichard Weinberger <richard@nod.at>2018-11-07 23:16:19 +0100
committerRichard Weinberger <richard@nod.at>2019-02-24 11:40:45 +0100
commit663586c0a8929db81e617c775823efb9d65f2bc2 (patch)
tree0bce3115039445f6f49f39a02edd5fbd61b7e3a8 /include/uapi/mtd
parentb32b78f89221ee26ae60f9a59e71b5ec28ba5fe2 (diff)
ubi: Expose the bitrot interface
Using UBI_IOCRPEB and UBI_IOCSPEB userspace can force reading and scrubbing of PEBs. In case of bitflips UBI will automatically take action and move data to a different PEB. This interface allows a daemon to foster your NAND. Signed-off-by: Richard Weinberger <richard@nod.at>
Diffstat (limited to 'include/uapi/mtd')
-rw-r--r--include/uapi/mtd/ubi-user.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/uapi/mtd/ubi-user.h b/include/uapi/mtd/ubi-user.h
index aad3b6201fc0..b69e9ba6742b 100644
--- a/include/uapi/mtd/ubi-user.h
+++ b/include/uapi/mtd/ubi-user.h
@@ -171,6 +171,11 @@
/* Re-name volumes */
#define UBI_IOCRNVOL _IOW(UBI_IOC_MAGIC, 3, struct ubi_rnvol_req)
+/* Read the specified PEB and scrub it if there are bitflips */
+#define UBI_IOCRPEB _IOW(UBI_IOC_MAGIC, 4, __s32)
+/* Force scrubbing on the specified PEB */
+#define UBI_IOCSPEB _IOW(UBI_IOC_MAGIC, 5, __s32)
+
/* ioctl commands of the UBI control character device */
#define UBI_CTRL_IOC_MAGIC 'o'