diff --git a/share/man/man4/oce.4 b/share/man/man4/oce.4
--- a/share/man/man4/oce.4
+++ b/share/man/man4/oce.4
@@ -36,7 +36,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd February 19, 2012
+.Dd June 13, 2023
 .Dt OCE 4
 .Os
 .Sh NAME
@@ -57,6 +57,12 @@
 .Bd -literal -offset indent
 if_oce_load="YES"
 .Ed
+.Sh DEPRECATION NOTICE
+The
+.Nm
+driver may not be present in
+.Fx 15.0
+and later.
 .Sh DESCRIPTION
 Emulex OneConnect adapters come in various skews and with
 different combinations of NIC, FCoE and iSCSI functions.
diff --git a/sys/dev/oce/oce_if.c b/sys/dev/oce/oce_if.c
--- a/sys/dev/oce/oce_if.c
+++ b/sys/dev/oce/oce_if.c
@@ -374,6 +374,8 @@
 	}
 	softc_tail = sc;
 
+	gone_in_dev(dev, 15, "relatively uncommon 10GbE NIC");
+
 	return 0;
 
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