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mlxsw: spectrum: Add mlxsw_sp_port_egress_ethtype_set()

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A subsequent patch will cause decapsulated packets to have their EtherType
determined by the egress port. Add mlxsw_sp_port_egress_ethtype_set() which
will be called when a port joins an 802.1ad bridge, so that it will set an
802.1ad EtherType on decapsulated packets transmitted through it, instead
of the default 802.1q EtherType.

Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Amit Cohen 2021-03-17 12:35:25 +02:00 committed by David S. Miller
parent d8f4da73ce
commit 114a465d89
2 changed files with 18 additions and 0 deletions
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16
drivers/net/ethernet/mellanox/mlxsw/spectrum.c
View file

@ -402,6 +402,22 @@ int mlxsw_sp_ethtype_to_sver_type(u16 ethtype, u8 *p_sver_type)
return 0;
}
int mlxsw_sp_port_egress_ethtype_set(struct mlxsw_sp_port *mlxsw_sp_port,
u16 ethtype)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
char spevet_pl[MLXSW_REG_SPEVET_LEN];
u8 sver_type;
int err;
err = mlxsw_sp_ethtype_to_sver_type(ethtype, &sver_type);
if (err)
return err;
mlxsw_reg_spevet_pack(spevet_pl, mlxsw_sp_port->local_port, sver_type);
return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spevet), spevet_pl);
}
static int __mlxsw_sp_port_pvid_set(struct mlxsw_sp_port *mlxsw_sp_port,
u16 vid, u16 ethtype)
{

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

@ -609,6 +609,8 @@ int mlxsw_sp_port_vp_mode_set(struct mlxsw_sp_port *mlxsw_sp_port, bool enable);
int mlxsw_sp_port_vid_learning_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid,
bool learn_enable);
int mlxsw_sp_ethtype_to_sver_type(u16 ethtype, u8 *p_sver_type);
int mlxsw_sp_port_egress_ethtype_set(struct mlxsw_sp_port *mlxsw_sp_port,
u16 ethtype);
int mlxsw_sp_port_pvid_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid,
u16 ethtype);
struct mlxsw_sp_port_vlan *