From 846fd8a0e7dcd9f455a86dc17ddf0a51c124f9c0 Mon Sep 17 00:00:00 2001 From: Nogah Frankel Date: Wed, 20 Sep 2017 16:15:08 +0200 Subject: [PATCH] mlxsw: spectrum_switchdev: Don't write mids to the HW when mc is disabled Don't write multicast related data to the HW when mc is disabled. Also, don't allocate mid id to new mids (so the remove function could know that they weren't wrote to the HW) Signed-off-by: Nogah Frankel Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller --- .../ethernet/mellanox/mlxsw/spectrum_switchdev.c | 21 +++++++++++++++++---- 1 file changed, 17 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c index 7f622de6331c..cea257a77d09 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c @@ -1290,6 +1290,9 @@ mlxsw_sp_mc_write_mdb_entry(struct mlxsw_sp *mlxsw_sp, static int mlxsw_sp_mc_remove_mdb_entry(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_mid *mid) { + if (!mid->in_hw) + return 0; + clear_bit(mid->mid, mlxsw_sp->bridge->mids_bitmap); mid->in_hw = false; return mlxsw_sp_port_mdb_op(mlxsw_sp, mid->addr, mid->fid, mid->mid, @@ -1319,11 +1322,15 @@ mlxsw_sp_mid *__mlxsw_sp_mc_alloc(struct mlxsw_sp *mlxsw_sp, ether_addr_copy(mid->addr, addr); mid->fid = fid; mid->in_hw = false; + + if (!bridge_device->multicast_enabled) + goto out; + if (!mlxsw_sp_mc_write_mdb_entry(mlxsw_sp, mid)) goto err_write_mdb_entry; +out: list_add_tail(&mid->list, &bridge_device->mids_list); - return mid; err_write_mdb_entry: @@ -1391,6 +1398,9 @@ static int mlxsw_sp_port_mdb_add(struct mlxsw_sp_port *mlxsw_sp_port, } set_bit(mlxsw_sp_port->local_port, mid->ports_in_mid); + if (!bridge_device->multicast_enabled) + return 0; + err = mlxsw_sp_port_smid_set(mlxsw_sp_port, mid->mid, true); if (err) { netdev_err(dev, "Unable to set SMID\n"); @@ -1476,9 +1486,12 @@ __mlxsw_sp_port_mdb_del(struct mlxsw_sp_port *mlxsw_sp_port, struct net_device *dev = mlxsw_sp_port->dev; int err; - err = mlxsw_sp_port_smid_set(mlxsw_sp_port, mid->mid, false); - if (err) - netdev_err(dev, "Unable to remove port from SMID\n"); + if (bridge_port->bridge_device->multicast_enabled) { + err = mlxsw_sp_port_smid_set(mlxsw_sp_port, mid->mid, false); + + if (err) + netdev_err(dev, "Unable to remove port from SMID\n"); + } err = mlxsw_sp_port_remove_from_mid(mlxsw_sp_port, mid); if (err) -- 2.11.0