From 3e0123a3e2351b46fa37d94d11f8869a700faee4 Mon Sep 17 00:00:00 2001
From: Joerg Wunsch <joerg@FreeBSD.org>
Date: Mon, 8 Jan 1996 12:26:15 +0000
Subject: [PATCH] Implement the MTRETENS command.

---
 sys/scsi/st.c  | 6 +++++-
 sys/sys/mtio.h | 8 +++-----
 2 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/sys/scsi/st.c b/sys/scsi/st.c
index 4bfe3e6a7302..bd91ccc1f8ed 100644
--- a/sys/scsi/st.c
+++ b/sys/scsi/st.c
@@ -12,7 +12,7 @@
  * on the understanding that TFS is not responsible for the correct
  * functioning of this software in any circumstances.
  *
- * $Id: st.c,v 1.55 1995/12/14 09:54:33 phk Exp $
+ * $Id: st.c,v 1.56 1996/01/05 20:12:51 wollman Exp $
  */
 
 /*
@@ -1151,6 +1151,10 @@ struct proc *p, struct scsi_link *sc_link)
 			case MTERASE:	/* erase */
 				errcode = st_erase(unit, FALSE, flags);
 				break;
+			case MTRETENS:	/* re-tension tape */
+				errcode = st_load(unit, LD_LOAD|LD_RETEN,
+						  flags);
+				break;
 			case MTOFFL:	/* rewind and put the drive offline */
 				st_unmount(unit, EJECT);
 				break;
diff --git a/sys/sys/mtio.h b/sys/sys/mtio.h
index 8dbdd8b1f4e1..01ef593cd70b 100644
--- a/sys/sys/mtio.h
+++ b/sys/sys/mtio.h
@@ -31,7 +31,7 @@
  * SUCH DAMAGE.
  *
  *	@(#)mtio.h	8.1 (Berkeley) 6/2/93
- * $Id: mtio.h,v 1.4 1994/10/28 13:19:42 jkh Exp $
+ * $Id: mtio.h,v 1.5 1995/03/21 11:21:37 dufault Exp $
  */
 
 #ifndef _SYS_MTIO_H_
@@ -73,12 +73,10 @@ struct mtop {
 
 #define MTSETDNSTY	11
 
-/*
-** Tape erase function - AKL: Andreas Klemm <andreas@knobel.gun.de>
-*/
 #define MTERASE		12	/* erase to EOM */
-#define MTEOD		13	/* Space to EOM *//* lost the code for this */
+#define MTEOD		13	/* Space to EOM */
 #define MTCOMP		14	/* select compression mode 0=off, 1=def */
+#define MTRETENS	15	/* re-tension tape */
 
 #endif