Index: qla.c
===================================================================
RCS file: /cvs/src/sys/dev/ic/qla.c,v
retrieving revision 1.53
diff -u -p -r1.53 qla.c
--- qla.c	7 Sep 2015 01:37:59 -0000	1.53
+++ qla.c	10 May 2016 06:21:48 -0000
@@ -2187,8 +2187,11 @@ qla_put_marker(struct qla_softc *sc, voi
 void
 qla_put_data_seg(struct qla_iocb_seg *seg, bus_dmamap_t dmap, int num)
 {
-	seg->seg_addr = htole64(dmap->dm_segs[num].ds_addr);
-	seg->seg_len = htole32(dmap->dm_segs[num].ds_len);
+	uint64_t addr = dmap->dm_segs[num].ds_addr;
+
+	htolem32(&seg->seg_addr_lo, addr);
+	htolem32(&seg->seg_addr_hi, addr >> 32);
+	htolem32(&seg->seg_len, dmap->dm_segs[num].ds_len);
 }
 
 void
Index: qlareg.h
===================================================================
RCS file: /cvs/src/sys/dev/ic/qlareg.h,v
retrieving revision 1.7
diff -u -p -r1.7 qlareg.h
--- qlareg.h	14 Apr 2014 04:14:11 -0000	1.7
+++ qlareg.h	10 May 2016 06:21:48 -0000
@@ -529,9 +529,10 @@ struct qla_sns_gid_ft {
 #define QLA_IOCB_MARKER_SYNC_ALL	2
 
 struct qla_iocb_seg {
-	u_int64_t	seg_addr;
+	u_int32_t	seg_addr_lo;
+	u_int32_t	seg_addr_hi;
 	u_int32_t	seg_len;
-} __packed;
+} __packed __aligned(4);
 
 #if 0
 struct qla_iocb_cont1 {