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mlxsw: spectrum_switchdev: Disable mdb when mc is disabled

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Remove all the mdb entries from the HW when mc is being disabled and
re-write them when it is being enabled.

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 16:15:09 +02:00 committed by David S. Miller
parent 846fd8a0e7
commit 2e3496cd34
1 changed files with 37 additions and 4 deletions
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41
drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
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@ -121,6 +121,11 @@ mlxsw_sp_bridge_port_fdb_flush(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_bridge_port *bridge_port, struct mlxsw_sp_bridge_port *bridge_port,
u16 fid_index); u16 fid_index);
static void
mlxsw_sp_bridge_mdb_mc_enable_sync(struct mlxsw_sp_port *mlxsw_sp_port,
struct mlxsw_sp_bridge_device
*bridge_device);
static struct mlxsw_sp_bridge_device * static struct mlxsw_sp_bridge_device *
mlxsw_sp_bridge_device_find(const struct mlxsw_sp_bridge *bridge, mlxsw_sp_bridge_device_find(const struct mlxsw_sp_bridge *bridge,
const struct net_device *br_dev) const struct net_device *br_dev)
@ -757,6 +762,12 @@ static int mlxsw_sp_port_mc_disabled_set(struct mlxsw_sp_port *mlxsw_sp_port,
if (!bridge_device) if (!bridge_device)
return 0; return 0;
if (bridge_device->multicast_enabled != !mc_disabled) {
bridge_device->multicast_enabled = !mc_disabled;
mlxsw_sp_bridge_mdb_mc_enable_sync(mlxsw_sp_port,
bridge_device);
}
list_for_each_entry(bridge_port, &bridge_device->ports_list, list) { list_for_each_entry(bridge_port, &bridge_device->ports_list, list) {
enum mlxsw_sp_flood_type packet_type = MLXSW_SP_FLOOD_TYPE_MC; enum mlxsw_sp_flood_type packet_type = MLXSW_SP_FLOOD_TYPE_MC;
bool member = mc_disabled ? true : bridge_port->mrouter; bool member = mc_disabled ? true : bridge_port->mrouter;
@ -1207,9 +1218,8 @@ static int mlxsw_sp_port_mdb_op(struct mlxsw_sp *mlxsw_sp, const char *addr,
return err; return err;
} }
/* clean the an entry from the HW and write there a full new entry */ static int mlxsw_sp_port_smid_full_entry(struct mlxsw_sp *mlxsw_sp, u16 mid_idx,
static int mlxsw_sp_port_smid_full_entry(struct mlxsw_sp *mlxsw_sp, long *ports_bitmap)
u16 mid_idx)
{ {
char *smid_pl; char *smid_pl;
int err, i; int err, i;
@ -1224,6 +1234,9 @@ static int mlxsw_sp_port_smid_full_entry(struct mlxsw_sp *mlxsw_sp,
mlxsw_reg_smid_port_mask_set(smid_pl, i, 1); mlxsw_reg_smid_port_mask_set(smid_pl, i, 1);
} }
for_each_set_bit(i, ports_bitmap, mlxsw_core_max_ports(mlxsw_sp->core))
mlxsw_reg_smid_port_set(smid_pl, i, 1);
err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(smid), smid_pl); err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(smid), smid_pl);
kfree(smid_pl); kfree(smid_pl);
return err; return err;
@ -1273,7 +1286,8 @@ mlxsw_sp_mc_write_mdb_entry(struct mlxsw_sp *mlxsw_sp,
return false; return false;
mid->mid = mid_idx; mid->mid = mid_idx;
err = mlxsw_sp_port_smid_full_entry(mlxsw_sp, mid_idx); err = mlxsw_sp_port_smid_full_entry(mlxsw_sp, mid_idx,
mid->ports_in_mid);
if (err) if (err)
return false; return false;
@ -1414,6 +1428,25 @@ static int mlxsw_sp_port_mdb_add(struct mlxsw_sp_port *mlxsw_sp_port,
return err; return err;
} }
static void
mlxsw_sp_bridge_mdb_mc_enable_sync(struct mlxsw_sp_port *mlxsw_sp_port,
struct mlxsw_sp_bridge_device
*bridge_device)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
struct mlxsw_sp_mid *mid;
bool mc_enabled;
mc_enabled = bridge_device->multicast_enabled;
list_for_each_entry(mid, &bridge_device->mids_list, list) {
if (mc_enabled)
mlxsw_sp_mc_write_mdb_entry(mlxsw_sp, mid);
else
mlxsw_sp_mc_remove_mdb_entry(mlxsw_sp, mid);
}
}
static int mlxsw_sp_port_obj_add(struct net_device *dev, static int mlxsw_sp_port_obj_add(struct net_device *dev,
const struct switchdev_obj *obj, const struct switchdev_obj *obj,
struct switchdev_trans *trans) struct switchdev_trans *trans)