Index: head/sys/dev/vnic/thunder_bgx_fdt.c
===================================================================
--- head/sys/dev/vnic/thunder_bgx_fdt.c
+++ head/sys/dev/vnic/thunder_bgx_fdt.c
@@ -193,7 +193,8 @@
 
 	if (sz > size)
 		return (FALSE);
-	if (strncmp(phy_name, type, sz) == 0)
+	if (strncmp(phy_name, type, sz - 1) == 0 &&
+	    (phy_name[sz - 1] == '\0' || phy_name[sz - 1] == '@'))
 		return (TRUE);
 
 	return (FALSE);