commit f717ae6d9d7d1f0274899691a3b01dd6f0a8c783
Author: Sepherosa Ziehau <sephe@dragonflybsd.org>
Date:   Fri Aug 4 13:31:44 2017 +0800

    mlx: Azure mlxen is SLAVE.  flags 0x9

diff --git a/sys/dev/mlx4/mlx4_en/mlx4_en_port.c b/sys/dev/mlx4/mlx4_en/mlx4_en_port.c
index f9db5a712e8..32e8ef39faf 100644
--- a/sys/dev/mlx4/mlx4_en/mlx4_en_port.c
+++ b/sys/dev/mlx4/mlx4_en/mlx4_en_port.c
@@ -584,7 +584,16 @@ int mlx4_en_DUMP_ETH_STATS(struct mlx4_en_dev *mdev, u8 port, u8 reset)
 		vport_stats->tx_errors = tmp_vport_stats.tx_errors;
 	}
 
-	if (!mlx4_is_mfunc(mdev->dev)) {
+#if 0
+	if (!mlx4_is_mfunc(mdev->dev))
+#endif
+	{
+		static int logged;
+
+		if (!logged) {
+			printf("mlxen: flags %lx\n", mdev->dev->flags);
+			logged = 1;
+		}
 /* netdevice stats format */
 #if __FreeBSD_version >= 1100000
 		if (reset == 0) {