igb: Enable EEE LP advertisement
On EEE-capable devices, query the PHY to determine what the link partner is
advertising.
Signed-off-by: Matthew Vick <matthew.vick@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
diff --git a/drivers/net/ethernet/intel/igb/igb_ethtool.c b/drivers/net/ethernet/intel/igb/igb_ethtool.c
index 08195bd..8412f97 100644
--- a/drivers/net/ethernet/intel/igb/igb_ethtool.c
+++ b/drivers/net/ethernet/intel/igb/igb_ethtool.c
@@ -38,6 +38,7 @@
#include <linux/slab.h>
#include <linux/pm_runtime.h>
#include <linux/highmem.h>
+#include <linux/mdio.h>
#include "igb.h"
@@ -2533,7 +2534,8 @@
{
struct igb_adapter *adapter = netdev_priv(netdev);
struct e1000_hw *hw = &adapter->hw;
- u32 ipcnfg, eeer;
+ u32 ipcnfg, eeer, ret_val;
+ u16 phy_data;
if ((hw->mac.type < e1000_i350) ||
(hw->phy.media_type != e1000_media_type_copper))
@@ -2552,6 +2554,32 @@
if (ipcnfg & E1000_IPCNFG_EEE_100M_AN)
edata->advertised |= ADVERTISED_100baseT_Full;
+ /* EEE Link Partner Advertised */
+ switch (hw->mac.type) {
+ case e1000_i350:
+ ret_val = igb_read_emi_reg(hw, E1000_EEE_LP_ADV_ADDR_I350,
+ &phy_data);
+ if (ret_val)
+ return -ENODATA;
+
+ edata->lp_advertised = mmd_eee_adv_to_ethtool_adv_t(phy_data);
+
+ break;
+ case e1000_i210:
+ case e1000_i211:
+ ret_val = igb_read_xmdio_reg(hw, E1000_EEE_LP_ADV_ADDR_I210,
+ E1000_EEE_LP_ADV_DEV_I210,
+ &phy_data);
+ if (ret_val)
+ return -ENODATA;
+
+ edata->lp_advertised = mmd_eee_adv_to_ethtool_adv_t(phy_data);
+
+ break;
+ default:
+ break;
+ }
+
if (eeer & E1000_EEER_EEE_NEG)
edata->eee_active = true;