2 files changed, 17 insertions, 11 deletions

diff --git a/src/include/gpxe/iscsi.h b/src/include/gpxe/iscsi.h
index 469911df..00717d2b 100644
--- a/src/include/gpxe/iscsi.h
+++ b/src/include/gpxe/iscsi.h
@@ -249,7 +249,7 @@ struct iscsi_bhs_scsi_command {
 	/** Segment lengths */
 	union iscsi_segment_lengths lengths;
 	/** SCSI Logical Unit Number */
-	uint64_t lun;
+	struct scsi_lun lun;
 	/** Initiator Task Tag */
 	uint32_t itt;
 	/** Expected data transfer length */
@@ -344,7 +344,7 @@ struct iscsi_bhs_data_in {
 	/** Segment lengths */
 	union iscsi_segment_lengths lengths;
 	/** Logical Unit Number */
-	uint64_t lun;
+	struct scsi_lun lun;
 	/** Initiator Task Tag */
 	uint32_t itt;
 	/** Target Transfer Tag */
@@ -392,7 +392,7 @@ struct iscsi_bhs_data_out {
 	/** Segment lengths */
 	union iscsi_segment_lengths lengths;
 	/** Logical Unit Number */
-	uint64_t lun;
+	struct scsi_lun lun;
 	/** Initiator Task Tag */
 	uint32_t itt;
 	/** Target Transfer Tag */
@@ -428,7 +428,7 @@ struct iscsi_bhs_r2t {
 	/** Segment lengths */
 	union iscsi_segment_lengths lengths;
 	/** Logical Unit Number */
-	uint64_t lun;
+	struct scsi_lun lun;
 	/** Initiator Task Tag */
 	uint32_t itt;
 	/** Target Transfer Tag */
@@ -507,7 +507,7 @@ struct iscsi_session {
 	/** Target IQN */
 	char *target_iqn;
 	/** Logical Unit Number (LUN) */
-	uint64_t lun;
+	struct scsi_lun lun;
 	/** Target socket address (recorded only for iBFT) */
 	struct sockaddr target_sockaddr;
 
diff --git a/src/include/gpxe/scsi.h b/src/include/gpxe/scsi.h
index b8866234..9131a29a 100644
--- a/src/include/gpxe/scsi.h
+++ b/src/include/gpxe/scsi.h
@@ -240,16 +240,21 @@ struct scsi_command {
 	int rc;
 };
 
+/** A SCSI LUN
+ *
+ * This is a four-level LUN as specified by SAM-2, in big-endian
+ * order.
+ */
+struct scsi_lun {
+	uint16_t u16[4];
+}  __attribute__ (( packed ));
+
 /** A SCSI device */
 struct scsi_device {
 	/** Block device interface */
 	struct block_device blockdev;
-	/** Logical unit number (LUN)
-	 *
-	 * This is a four-level LUN as specified by SAM-2, in
-	 * big-endian order.
-	 */
-	uint64_t lun;
+	/** Logical unit number (LUN) */
+	struct scsi_lun lun;
 	/**
 	 * Issue SCSI command
 	 *
@@ -273,5 +278,6 @@ struct scsi_device {
 extern int scsi_detached_command ( struct scsi_device *scsi,
 				   struct scsi_command *command );
 extern int init_scsidev ( struct scsi_device *scsi );
+extern int scsi_parse_lun ( const char *lun_string, struct scsi_lun *lun );
 
 #endif /* _GPXE_SCSI_H */