target: Introduce TCM_NO_SENSE

Introduce TCM_NO_SENSE, mapping to sense code
'Not ready, no additional sense information'.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Cc: Nicholas Bellinger <nab@risingtidesystems.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index 978762d..104bf3b 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -2597,6 +2597,16 @@
 	 * SENSE KEY values from include/scsi/scsi.h
 	 */
 	switch (reason) {
+	case TCM_NO_SENSE:
+		/* CURRENT ERROR */
+		buffer[0] = 0x70;
+		buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
+		/* Not Ready */
+		buffer[SPC_SENSE_KEY_OFFSET] = NOT_READY;
+		/* NO ADDITIONAL SENSE INFORMATION */
+		buffer[SPC_ASC_KEY_OFFSET] = 0;
+		buffer[SPC_ASCQ_KEY_OFFSET] = 0;
+		break;
 	case TCM_NON_EXISTENT_LUN:
 		/* CURRENT ERROR */
 		buffer[0] = 0x70;
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index 7cae236..663e34a 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -174,6 +174,7 @@
 
 enum tcm_sense_reason_table {
 #define R(x)	(__force sense_reason_t )(x)
+	TCM_NO_SENSE				= R(0x00),
 	TCM_NON_EXISTENT_LUN			= R(0x01),
 	TCM_UNSUPPORTED_SCSI_OPCODE		= R(0x02),
 	TCM_INCORRECT_AMOUNT_OF_DATA		= R(0x03),