#include <linux/types.h>
#include <linux/blkdev.h>
+/*
+ * A T10 PI-capable target device can be formatted with different
+ * protection schemes. Currently 0 through 3 are defined:
+ *
+ * Type 0 is regular (unprotected) I/O
+ *
+ * Type 1 defines the contents of the guard and reference tags
+ *
+ * Type 2 defines the contents of the guard and reference tags and
+ * uses 32-byte commands to seed the latter
+ *
+ * Type 3 defines the contents of the guard tag only
+ */
+enum t10_dif_type {
+ T10_PI_TYPE0_PROTECTION = 0x0,
+ T10_PI_TYPE1_PROTECTION = 0x1,
+ T10_PI_TYPE2_PROTECTION = 0x2,
+ T10_PI_TYPE3_PROTECTION = 0x3,
+};
+
/*
* T10 Protection Information tuple.
*/