mlx4_en: Fix loss of promiscuity

The mlx4_en driver uses the combination stop_port/start_port
in a number of places.  Unfortunately that causes any promiscuous
mode settings on the hardware to be lost.

This patch fixes that problem.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/net/mlx4/en_netdev.c b/drivers/net/mlx4/en_netdev.c
index 5762ebde4455..4f158baa0246 100644
--- a/drivers/net/mlx4/en_netdev.c
+++ b/drivers/net/mlx4/en_netdev.c
@@ -742,6 +742,9 @@ int mlx4_en_start_port(struct net_device *dev)
                                   0, MLX4_PROT_ETH))
                 mlx4_warn(mdev, "Failed Attaching Broadcast\n");
 
+        /* Must redo promiscuous mode setup. */
+        priv->flags &= ~(MLX4_EN_FLAG_PROMISC | MLX4_EN_FLAG_MC_PROMISC);
+
         /* Schedule multicast task to populate multicast list */
         queue_work(mdev->workqueue, &priv->mcast_task);