This change adds i40e_enable_eee() function controlling advertisement
of Energy Efficient Ethernet mode (EEE).
Signed-off-by: Piotr Pietruszewski <piotr.pietruszew...@intel.com>
Reviewed-by: Aleksandr Loktionov <aleksandr.loktio...@intel.com>
Reviewed-by: Kirsher Jeffrey T <jeffrey.t.kirs...@intel.com>
Signed-off-by: Xiaolong Ye <xiaolong...@intel.com>
---
drivers/net/i40e/base/i40e_common.c | 57 ++++++++++++++++++++++++++
drivers/net/i40e/base/i40e_prototype.h | 1 +
2 files changed, 58 insertions(+)
diff --git a/drivers/net/i40e/base/i40e_common.c
b/drivers/net/i40e/base/i40e_common.c
index 56645401c..da7869431 100644
--- a/drivers/net/i40e/base/i40e_common.c
+++ b/drivers/net/i40e/base/i40e_common.c
@@ -7143,6 +7143,63 @@ enum i40e_status_code
i40e_aq_rx_ctl_write_register(struct i40e_hw *hw,
return status;
}
+/**
+ * i40e_enable_eee
+ * @hw: pointer to the hardware structure
+ * @enable: state of Energy Efficient Ethernet mode to be set
+ *
+ * Enables or disables Energy Efficient Ethernet (EEE) mode
+ * accordingly to @enable parameter.
+ **/
+enum i40e_status_code i40e_enable_eee(struct i40e_hw *hw, bool enable)
+{
+ struct i40e_aq_get_phy_abilities_resp abilities;
+ struct i40e_aq_set_phy_config config;
+ enum i40e_status_code status;
+ __le16 eee_capability;
+
+ /* Get initial PHY capabilities */
+ status = i40e_aq_get_phy_capabilities(hw, false, true, &abilities,
+ NULL);
+ if (status)
+ goto err;
+
+ /* Check whether NIC configuration is compatible with Energy Efficient
+ * Ethernet (EEE) mode.
+ */
+ if (abilities.eee_capability == 0) {
+ status = I40E_ERR_CONFIG;
+ goto err;
+ }
+
+ /* Cache initial EEE capability */
+ eee_capability = abilities.eee_capability;
+
+ /* Get current configuration */
+ status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
+ NULL);
+ if (status)
+ goto err;
+
+ /* Cache current configuration */
+ config.phy_type = abilities.phy_type;
+ config.link_speed = abilities.link_speed;
+ config.abilities = abilities.abilities |
+ I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
+ config.eeer = abilities.eeer_val;
+ config.low_power_ctrl = abilities.d3_lpan;
+ config.fec_config = abilities.fec_cfg_curr_mod_ext_info &
+ I40E_AQ_PHY_FEC_CONFIG_MASK;
+
+ /* Set desired EEE state */
+ config.eee_capability = enable ? eee_capability : 0;
+
+ /* Save modified config */
+ status = i40e_aq_set_phy_config(hw, &config, NULL);
+err:
+ return status;
+}
+
/**
* i40e_write_rx_ctl - write to an Rx control register
* @hw: pointer to the hw struct
diff --git a/drivers/net/i40e/base/i40e_prototype.h
b/drivers/net/i40e/base/i40e_prototype.h
index 17d54e647..406b902b3 100644
--- a/drivers/net/i40e/base/i40e_prototype.h
+++ b/drivers/net/i40e/base/i40e_prototype.h
@@ -428,6 +428,7 @@ void i40e_clear_pxe_mode(struct i40e_hw *hw);
enum i40e_status_code i40e_get_link_status(struct i40e_hw *hw, bool *link_up);
enum i40e_status_code i40e_update_link_info(struct i40e_hw *hw);
enum i40e_status_code i40e_get_mac_addr(struct i40e_hw *hw, u8 *mac_addr);
+enum i40e_status_code i40e_enable_eee(struct i40e_hw *hw, bool enable);
enum i40e_status_code i40e_read_bw_from_alt_ram(struct i40e_hw *hw,
u32 *max_bw, u32 *min_bw, bool *min_valid, bool *max_valid);
enum i40e_status_code i40e_aq_configure_partition_bw(struct i40e_hw *hw,
--
2.17.1
