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mlxsw: spectrum: Switch to VID 4095 as default VID 

There is no need to abuse VID 1 anymore and we can instead use VID 4095
as the default VLAN, which will be configured on the port throughout its
lifetime.

The OVS join / leave functions are changed to enable VIDs 1-4094
(inclusive) instead of 2-4095. This because VID 4095 is now the default
VLAN instead of 1.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ido Schimmel 2018-12-20 19:42:33 +00:00 committed by David S. Miller
parent 16f6aceb72
commit 0417d25e7d
3 changed files with 11 additions and 21 deletions
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15
drivers/net/ethernet/mellanox/mlxsw/spectrum.c
View File

@ -4670,8 +4670,6 @@ static int mlxsw_sp_port_lag_join(struct mlxsw_sp_port *mlxsw_sp_port,
struct net_device *lag_dev)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
u16 vid = MLXSW_SP_DEFAULT_VID;
struct mlxsw_sp_upper *lag;
u16 lag_id;
u8 port_index;
@ -4705,9 +4703,8 @@ static int mlxsw_sp_port_lag_join(struct mlxsw_sp_port *mlxsw_sp_port,
lag->ref_count++;
/* Port is no longer usable as a router interface */
mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, vid);
if (mlxsw_sp_port_vlan->fid)
mlxsw_sp_port_vlan_router_leave(mlxsw_sp_port_vlan);
if (mlxsw_sp_port->default_vlan->fid)
mlxsw_sp_port_vlan_router_leave(mlxsw_sp_port->default_vlan);
return 0;
@ -4735,7 +4732,8 @@ static void mlxsw_sp_port_lag_leave(struct mlxsw_sp_port *mlxsw_sp_port,
mlxsw_sp_lag_col_port_remove(mlxsw_sp_port, lag_id);
/* Any VLANs configured on the port are no longer valid */
mlxsw_sp_port_vlan_flush(mlxsw_sp_port, true);
mlxsw_sp_port_vlan_flush(mlxsw_sp_port, false);
mlxsw_sp_port_vlan_cleanup(mlxsw_sp_port->default_vlan);
/* Make the LAG and its directly linked uppers leave bridges they
* are memeber in
*/
@ -4749,7 +4747,6 @@ static void mlxsw_sp_port_lag_leave(struct mlxsw_sp_port *mlxsw_sp_port,
mlxsw_sp_port->lagged = 0;
lag->ref_count--;
mlxsw_sp_port_vlan_create(mlxsw_sp_port, MLXSW_SP_DEFAULT_VID);
/* Make sure untagged frames are allowed to ingress */
mlxsw_sp_port_pvid_set(mlxsw_sp_port, MLXSW_SP_DEFAULT_VID);
}
@ -4829,7 +4826,7 @@ static int mlxsw_sp_port_ovs_join(struct mlxsw_sp_port *mlxsw_sp_port)
err = mlxsw_sp_port_stp_set(mlxsw_sp_port, true);
if (err)
goto err_port_stp_set;
err = mlxsw_sp_port_vlan_set(mlxsw_sp_port, 2, VLAN_N_VID - 1,
err = mlxsw_sp_port_vlan_set(mlxsw_sp_port, 1, VLAN_N_VID - 2,
true, false);
if (err)
goto err_port_vlan_set;
@ -4861,7 +4858,7 @@ static void mlxsw_sp_port_ovs_leave(struct mlxsw_sp_port *mlxsw_sp_port)
mlxsw_sp_port_vid_learning_set(mlxsw_sp_port,
vid, true);
mlxsw_sp_port_vlan_set(mlxsw_sp_port, 2, VLAN_N_VID - 1,
mlxsw_sp_port_vlan_set(mlxsw_sp_port, 1, VLAN_N_VID - 2,
false, false);
mlxsw_sp_port_stp_set(mlxsw_sp_port, false);
mlxsw_sp_port_vp_mode_set(mlxsw_sp_port, false);

2
drivers/net/ethernet/mellanox/mlxsw/spectrum.h
View File

@ -25,7 +25,7 @@
#include "core_acl_flex_actions.h"
#include "reg.h"
#define MLXSW_SP_DEFAULT_VID 1
#define MLXSW_SP_DEFAULT_VID (VLAN_N_VID - 1)
#define MLXSW_SP_FID_8021D_MAX 1024

15
drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
View File

@ -1974,20 +1974,14 @@ mlxsw_sp_bridge_8021q_port_join(struct mlxsw_sp_bridge_device *bridge_device,
struct mlxsw_sp_port *mlxsw_sp_port,
struct netlink_ext_ack *extack)
{
struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
u16 vid = MLXSW_SP_DEFAULT_VID;
if (is_vlan_dev(bridge_port->dev)) {
NL_SET_ERR_MSG_MOD(extack, "Can not enslave a VLAN device to a VLAN-aware bridge");
return -EINVAL;
}
mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, vid);
if (WARN_ON(!mlxsw_sp_port_vlan))
return -EINVAL;
/* Let VLAN-aware bridge take care of its own VLANs */
mlxsw_sp_port_vlan_destroy(mlxsw_sp_port_vlan);
/* Port is no longer usable as a router interface */
if (mlxsw_sp_port->default_vlan->fid)
mlxsw_sp_port_vlan_router_leave(mlxsw_sp_port->default_vlan);
return 0;
}
@ -1997,7 +1991,6 @@ mlxsw_sp_bridge_8021q_port_leave(struct mlxsw_sp_bridge_device *bridge_device,
struct mlxsw_sp_bridge_port *bridge_port,
struct mlxsw_sp_port *mlxsw_sp_port)
{
mlxsw_sp_port_vlan_create(mlxsw_sp_port, MLXSW_SP_DEFAULT_VID);
/* Make sure untagged frames are allowed to ingress */
mlxsw_sp_port_pvid_set(mlxsw_sp_port, MLXSW_SP_DEFAULT_VID);
}
@ -2199,7 +2192,7 @@ mlxsw_sp_bridge_8021d_port_leave(struct mlxsw_sp_bridge_device *bridge_device,
vid = is_vlan_dev(dev) ? vlan_dev_vlan_id(dev) : MLXSW_SP_DEFAULT_VID;
mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, vid);
if (!mlxsw_sp_port_vlan)
if (!mlxsw_sp_port_vlan || !mlxsw_sp_port_vlan->bridge_port)
return;
mlxsw_sp_port_vlan_bridge_leave(mlxsw_sp_port_vlan);