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net/i40e/base: support Energy Efficient Ethernet

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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>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>
Acked-by: Beilei Xing <beilei.xing@intel.com>
This commit is contained in:
Xiaolong Ye 2020-01-13 10:39:24 +08:00 committed by Ferruh Yigit
parent 9b62b281c8
commit c61bcb0fe1
2 changed files with 65 additions and 0 deletions
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64
drivers/net/i40e/base/i40e_common.c
View File

@ -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

1
drivers/net/i40e/base/i40e_prototype.h
View File

@ -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);