This is a note to let you know that I've just added the patch titled

mlxsw: spectrum: Disable MAC learning for ovs port

to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: mlxsw-spectrum-disable-mac-learning-for-ovs-port.patch and it can be found in the queue-4.14 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.

From foo@baz Sun Dec 31 11:12:48 CET 2017

From: Yuval Mintz yuvalm@mellanox.com Date: Fri, 15 Dec 2017 08:44:21 +0100 Subject: mlxsw: spectrum: Disable MAC learning for ovs port

From: Yuval Mintz yuvalm@mellanox.com

[ Upstream commit fccff0862838908d21eaf956d57e09c6c189f7c5 ]

Learning is currently enabled for ports which are OVS slaves - even though OVS doesn't need this indication. Since we're not associating a fid with the port, HW would continuously notify driver of learned [& aged] MACs which would be logged as errors.

Fixes: 2b94e58df58c ("mlxsw: spectrum: Allow ports to work under OVS master") Signed-off-by: Yuval Mintz yuvalm@mellanox.com Reviewed-by: Ido Schimmel idosch@mellanox.com Signed-off-by: Jiri Pirko jiri@mellanox.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/mellanox/mlxsw/spectrum.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+)

--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c @@ -4164,6 +4164,7 @@ static int mlxsw_sp_port_stp_set(struct

static int mlxsw_sp_port_ovs_join(struct mlxsw_sp_port *mlxsw_sp_port) { + u16 vid = 1; int err;

err = mlxsw_sp_port_vp_mode_set(mlxsw_sp_port, true); @@ -4176,8 +4177,19 @@ static int mlxsw_sp_port_ovs_join(struct true, false); if (err) goto err_port_vlan_set; + + for (; vid <= VLAN_N_VID - 1; vid++) { + err = mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, + vid, false); + if (err) + goto err_vid_learning_set; + } + return 0;

+err_vid_learning_set: + for (vid--; vid >= 1; vid--) + mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid, true); err_port_vlan_set: mlxsw_sp_port_stp_set(mlxsw_sp_port, false); err_port_stp_set: @@ -4187,6 +4199,12 @@ err_port_stp_set:

static void mlxsw_sp_port_ovs_leave(struct mlxsw_sp_port *mlxsw_sp_port) { + u16 vid; + + for (vid = VLAN_N_VID - 1; vid >= 1; vid--) + mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, + vid, true); + mlxsw_sp_port_vlan_set(mlxsw_sp_port, 2, VLAN_N_VID - 1, false, false); mlxsw_sp_port_stp_set(mlxsw_sp_port, false);

Patches currently in stable-queue which might be from yuvalm@mellanox.com are

queue-4.14/mlxsw-spectrum-disable-mac-learning-for-ovs-port.patch