mlxsw: core_env: Split module power mode setting to a separate function

Move the code that applies the module power mode to the device to a
separate function. This function will be invoked by the next patch to
set the power mode on transceiver modules found on a line card when the
line card becomes active.

Signed-off-by: Vadim Pasternak <vadimp@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/mellanox/mlxsw/core_env.c b/drivers/net/ethernet/mellanox/mlxsw/core_env.c
index abb5417..a9b133d 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlxsw/core_env.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/core_env.c
@@ -648,25 +648,16 @@ err_module_low_power_set:
        return err;
 }
 
-int
-mlxsw_env_set_module_power_mode(struct mlxsw_core *mlxsw_core, u8 slot_index,
-                               u8 module,
-                               enum ethtool_module_power_mode_policy policy,
-                               struct netlink_ext_ack *extack)
+static int
+mlxsw_env_set_module_power_mode_apply(struct mlxsw_core *mlxsw_core,
+                                     u8 slot_index, u8 module,
+                                     enum ethtool_module_power_mode_policy policy,
+                                     struct netlink_ext_ack *extack)
 {
-       struct mlxsw_env *mlxsw_env = mlxsw_core_env(mlxsw_core);
        struct mlxsw_env_module_info *module_info;
        bool low_power;
        int err = 0;
 
-       if (policy != ETHTOOL_MODULE_POWER_MODE_POLICY_HIGH &&
-           policy != ETHTOOL_MODULE_POWER_MODE_POLICY_AUTO) {
-               NL_SET_ERR_MSG_MOD(extack, "Unsupported power mode policy");
-               return -EOPNOTSUPP;
-       }
-
-       mutex_lock(&mlxsw_env->line_cards_lock);
-
        err = __mlxsw_env_validate_module_type(mlxsw_core, slot_index, module);
        if (err) {
                NL_SET_ERR_MSG_MOD(extack,
@@ -691,7 +682,29 @@ mlxsw_env_set_module_power_mode(struct mlxsw_core *mlxsw_core, u8 slot_index,
 out_set_policy:
        module_info->power_mode_policy = policy;
 out:
+       return err;
+}
+
+int
+mlxsw_env_set_module_power_mode(struct mlxsw_core *mlxsw_core, u8 slot_index,
+                               u8 module,
+                               enum ethtool_module_power_mode_policy policy,
+                               struct netlink_ext_ack *extack)
+{
+       struct mlxsw_env *mlxsw_env = mlxsw_core_env(mlxsw_core);
+       int err;
+
+       if (policy != ETHTOOL_MODULE_POWER_MODE_POLICY_HIGH &&
+           policy != ETHTOOL_MODULE_POWER_MODE_POLICY_AUTO) {
+               NL_SET_ERR_MSG_MOD(extack, "Unsupported power mode policy");
+               return -EOPNOTSUPP;
+       }
+
+       mutex_lock(&mlxsw_env->line_cards_lock);
+       err = mlxsw_env_set_module_power_mode_apply(mlxsw_core, slot_index,
+                                                   module, policy, extack);
        mutex_unlock(&mlxsw_env->line_cards_lock);
+
        return err;
 }
 EXPORT_SYMBOL(mlxsw_env_set_module_power_mode);