[dpdk-dev] [PATCH 7/9] net/i40e/base: add EEE LPI status check for X722 adapters

[Guinan Sun <guinanx.sun@intel.com>]

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>
---
 drivers/net/i40e/base/i40e_common.c | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/drivers/net/i40e/base/i40e_common.c b/drivers/net/i40e/base/i40e_common.c
index cd8b27e40..073634278 100644
--- 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,
-- 
2.17.1