mlxsw: spectrum: Add mlxsw_sp.mac_mask

The Spectrum hardware demands that all router interfaces in the system
have the same first 38 resp. 36 bits of MAC address: the former limit
holds on Spectrum, the latter on Spectrum-2. Add a field that refers to
the required prefix mask and initialize in mlxsw_sp1_init() and
mlxsw_sp2_init().

Signed-off-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
index 0fb7772..955f7bb 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
@@ -65,6 +65,13 @@ static const char mlxsw_sp1_driver_name[] = "mlxsw_spectrum";
 static const char mlxsw_sp2_driver_name[] = "mlxsw_spectrum2";
 static const char mlxsw_sp_driver_version[] = "1.0";
 
+static const unsigned char mlxsw_sp1_mac_mask[ETH_ALEN] = {
+       0xff, 0xff, 0xff, 0xff, 0xfc, 0x00
+};
+static const unsigned char mlxsw_sp2_mac_mask[ETH_ALEN] = {
+       0xff, 0xff, 0xff, 0xff, 0xf0, 0x00
+};
+
 /* tx_hdr_version
  * Tx header version.
  * Must be set to 1.
@@ -4083,6 +4090,7 @@ static int mlxsw_sp1_init(struct mlxsw_core *mlxsw_core,
        mlxsw_sp->mr_tcam_ops = &mlxsw_sp1_mr_tcam_ops;
        mlxsw_sp->acl_tcam_ops = &mlxsw_sp1_acl_tcam_ops;
        mlxsw_sp->nve_ops_arr = mlxsw_sp1_nve_ops_arr;
+       mlxsw_sp->mac_mask = mlxsw_sp1_mac_mask;
 
        return mlxsw_sp_init(mlxsw_core, mlxsw_bus_info);
 }
@@ -4098,6 +4106,7 @@ static int mlxsw_sp2_init(struct mlxsw_core *mlxsw_core,
        mlxsw_sp->mr_tcam_ops = &mlxsw_sp2_mr_tcam_ops;
        mlxsw_sp->acl_tcam_ops = &mlxsw_sp2_acl_tcam_ops;
        mlxsw_sp->nve_ops_arr = mlxsw_sp2_nve_ops_arr;
+       mlxsw_sp->mac_mask = mlxsw_sp2_mac_mask;
 
        return mlxsw_sp_init(mlxsw_core, mlxsw_bus_info);
 }

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
index 373d648..64cae57 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
@@ -132,6 +132,7 @@ struct mlxsw_sp {
        struct mlxsw_core *core;
        const struct mlxsw_bus_info *bus_info;
        unsigned char base_mac[ETH_ALEN];
+       const unsigned char *mac_mask;
        struct mlxsw_sp_upper *lags;
        int *port_to_module;
        struct mlxsw_sp_sb *sb;