diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h
index 34c46ab..8b4deca 100644
--- a/include/scsi/scsi.h
+++ b/include/scsi/scsi.h
@@ -94,6 +94,7 @@
 #define WRITE_LONG            0x3f
 #define CHANGE_DEFINITION     0x40
 #define WRITE_SAME            0x41
+#define UNMAP		      0x42
 #define READ_TOC              0x43
 #define LOG_SELECT            0x4c
 #define LOG_SENSE             0x4d
@@ -122,9 +123,11 @@
 #define READ_16               0x88
 #define WRITE_16              0x8a
 #define VERIFY_16	      0x8f
+#define WRITE_SAME_16	      0x93
 #define SERVICE_ACTION_IN     0x9e
 /* values for service action in */
 #define	SAI_READ_CAPACITY_16  0x10
+#define SAI_GET_LBA_STATUS    0x12
 /* values for maintenance in */
 #define MI_REPORT_TARGET_PGS  0x0a
 /* values for maintenance out */
@@ -132,6 +135,7 @@
 /* values for variable length command */
 #define READ_32		      0x09
 #define WRITE_32	      0x0b
+#define WRITE_SAME_32	      0x0d
 
 /* Values for T10/04-262r7 */
 #define	ATA_16		      0x85	/* 16-byte pass-thru */