This change adds i40e_enable_eee() function controlling advertisement
of Energy Efficient Ethernet mode (EEE).
Signed-off-by: Piotr Pietruszewski <piotr.pietruszewski@intel.com>
Signed-off-by: Xiaolong Ye <xiaolong.ye@intel.com>
---
drivers/net/i40e/base/i40e_common.c | 64 ++++++++++++++++++++++++++
drivers/net/i40e/base/i40e_prototype.h | 1 +
2 files changed, 65 insertions(+)
@@ -6306,6 +6306,70 @@ enum i40e_status_code i40e_aq_debug_dump(struct i40e_hw *hw, u8 cluster_id,
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 */
+ if (enable) {
+ config.eee_capability = eee_capability;
+ config.eeer |= I40E_PRTPM_EEER_TX_LPI_EN_MASK;
+ } else {
+ config.eee_capability = 0;
+ config.eeer &= ~I40E_PRTPM_EEER_TX_LPI_EN_MASK;
+ }
+
+ /* Save modified config */
+ status = i40e_aq_set_phy_config(hw, &config, NULL);
+err:
+ return status;
+}
+
/**
* i40e_read_bw_from_alt_ram
* @hw: pointer to the hardware structure
@@ -458,6 +458,7 @@ void i40e_nvmupd_check_wait_event(struct i40e_hw *hw, u16 opcode,
void i40e_nvmupd_clear_wait_state(struct i40e_hw *hw);
void i40e_set_pci_config_data(struct i40e_hw *hw, u16 link_status);
#endif /* PF_DRIVER */
+enum i40e_status_code i40e_enable_eee(struct i40e_hw *hw, bool enable);
#if defined(I40E_QV) || defined(VF_DRIVER)
enum i40e_status_code i40e_set_mac_type(struct i40e_hw *hw);