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mlxsw: switchx2: Add support for physical port names

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Export to userspace the front panel name of the port, so that udev can
rename the ports accordingly. The convention suggested by switchdev
documentation is used: pX

Signed-off-by: Elad Raz <eladr@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Elad Raz 2016-10-28 21:35:50 +02:00 committed by David S. Miller
parent f83e21027b
commit e50e789ce1
1 changed files with 27 additions and 5 deletions
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32
drivers/net/ethernet/mellanox/mlxsw/switchx2.c
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@ -81,6 +81,9 @@ struct mlxsw_sx_port {
struct mlxsw_sx_port_pcpu_stats __percpu *pcpu_stats;
struct mlxsw_sx *mlxsw_sx;
u8 local_port;
struct {
u8 module;
} mapping;
};
/* tx_hdr_version
@ -257,7 +260,8 @@ mlxsw_sx_port_system_port_mapping_set(struct mlxsw_sx_port *mlxsw_sx_port)
}
static int mlxsw_sx_port_module_info_get(struct mlxsw_sx *mlxsw_sx,
u8 local_port, u8 *p_width)
u8 local_port, u8 *p_module,
u8 *p_width)
{
char pmlp_pl[MLXSW_REG_PMLP_LEN];
int err;
@ -266,6 +270,7 @@ static int mlxsw_sx_port_module_info_get(struct mlxsw_sx *mlxsw_sx,
err = mlxsw_reg_query(mlxsw_sx->core, MLXSW_REG(pmlp), pmlp_pl);
if (err)
return err;
*p_module = mlxsw_reg_pmlp_module_get(pmlp_pl, 0);
*p_width = mlxsw_reg_pmlp_width_get(pmlp_pl);
return 0;
}
@ -383,12 +388,26 @@ mlxsw_sx_port_get_stats64(struct net_device *dev,
return stats;
}
static int mlxsw_sx_port_get_phys_port_name(struct net_device *dev, char *name,
size_t len)
{
struct mlxsw_sx_port *mlxsw_sx_port = netdev_priv(dev);
int err;
err = snprintf(name, len, "p%d", mlxsw_sx_port->mapping.module + 1);
if (err >= len)
return -EINVAL;
return 0;
}
static const struct net_device_ops mlxsw_sx_port_netdev_ops = {
.ndo_open = mlxsw_sx_port_open,
.ndo_stop = mlxsw_sx_port_stop,
.ndo_start_xmit = mlxsw_sx_port_xmit,
.ndo_change_mtu = mlxsw_sx_port_change_mtu,
.ndo_get_stats64 = mlxsw_sx_port_get_stats64,
.ndo_get_phys_port_name = mlxsw_sx_port_get_phys_port_name,
};
static void mlxsw_sx_port_get_drvinfo(struct net_device *dev,
@ -957,7 +976,8 @@ mlxsw_sx_port_mac_learning_mode_set(struct mlxsw_sx_port *mlxsw_sx_port,
return mlxsw_reg_write(mlxsw_sx->core, MLXSW_REG(spmlr), spmlr_pl);
}
static int mlxsw_sx_port_create(struct mlxsw_sx *mlxsw_sx, u8 local_port)
static int mlxsw_sx_port_create(struct mlxsw_sx *mlxsw_sx, u8 local_port,
u8 module)
{
struct mlxsw_sx_port *mlxsw_sx_port;
struct net_device *dev;
@ -971,6 +991,7 @@ static int mlxsw_sx_port_create(struct mlxsw_sx *mlxsw_sx, u8 local_port)
mlxsw_sx_port->dev = dev;
mlxsw_sx_port->mlxsw_sx = mlxsw_sx;
mlxsw_sx_port->local_port = local_port;
mlxsw_sx_port->mapping.module = module;
mlxsw_sx_port->pcpu_stats =
netdev_alloc_pcpu_stats(struct mlxsw_sx_port_pcpu_stats);
@ -1119,7 +1140,7 @@ static void mlxsw_sx_ports_remove(struct mlxsw_sx *mlxsw_sx)
static int mlxsw_sx_ports_create(struct mlxsw_sx *mlxsw_sx)
{
size_t alloc_size;
u8 width;
u8 module, width;
int i;
int err;
@ -1129,12 +1150,13 @@ static int mlxsw_sx_ports_create(struct mlxsw_sx *mlxsw_sx)
return -ENOMEM;
for (i = 1; i < MLXSW_PORT_MAX_PORTS; i++) {
err = mlxsw_sx_port_module_info_get(mlxsw_sx, i, &width);
err = mlxsw_sx_port_module_info_get(mlxsw_sx, i, &module,
&width);
if (err)
goto err_port_module_info_get;
if (!width)
continue;
err = mlxsw_sx_port_create(mlxsw_sx, i);
err = mlxsw_sx_port_create(mlxsw_sx, i, module);
if (err)
goto err_port_create;
}