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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 <nogahf@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Nogah Frankel 2017-09-20 16:15:08 +02:00 committed by David S. Miller
parent 061e55bfb8
commit 846fd8a0e7
1 changed files with 17 additions and 4 deletions
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15
drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
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@ -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;
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)