net/i40e/base: add EEE LPI status check for X722

Add reading LPI (low power idle) status for supported X722 devices.
If adapter's PHY supports EEE in current mode (device ID + link speed),
LPI status is read from PHY Clause 45 PCS status register.

Signed-off-by: Dawid Lukwinski <dawid.lukwinski@intel.com>
Signed-off-by: Guinan Sun <guinanx.sun@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>

diff --git a/drivers/net/i40e/base/i40e_common.c b/drivers/net/i40e/base/i40e_common.c
index cd8b27e..3be944e 100644 (file)
--- a/drivers/net/i40e/base/i40e_common.c
+++ b/drivers/net/i40e/base/i40e_common.c
@@ -7098,15 +7098,23 @@ enum i40e_status_code i40e_get_phy_lpi_status(struct i40e_hw *hw,
                                              struct i40e_hw_port_stats *stat)
 {
        enum i40e_status_code ret = I40E_SUCCESS;
+       bool eee_mrvl_phy;
+       bool eee_bcm_phy;
        u32 val;
 
        stat->rx_lpi_status = 0;
        stat->tx_lpi_status = 0;
 
-       if ((hw->device_id == I40E_DEV_ID_10G_BASE_T_BC ||
-            hw->device_id == I40E_DEV_ID_5G_BASE_T_BC) &&
-           (hw->phy.link_info.link_speed == I40E_LINK_SPEED_2_5GB ||
-            hw->phy.link_info.link_speed == I40E_LINK_SPEED_5GB)) {
+       eee_bcm_phy =
+               (hw->device_id == I40E_DEV_ID_10G_BASE_T_BC ||
+                hw->device_id == I40E_DEV_ID_5G_BASE_T_BC) &&
+               (hw->phy.link_info.link_speed == I40E_LINK_SPEED_2_5GB ||
+                hw->phy.link_info.link_speed == I40E_LINK_SPEED_5GB);
+       eee_mrvl_phy =
+               hw->device_id == I40E_DEV_ID_1G_BASE_T_X722;
+
+       if (eee_bcm_phy || eee_mrvl_phy) {
+               /* read Clause 45 PCS Status 1 register */
                ret = i40e_aq_get_phy_register(hw,
                                               I40E_AQ_PHY_REG_ACCESS_EXTERNAL,
                                               I40E_BCM_PHY_PCS_STATUS1_PAGE,