+/**
+ * e1000e_update_phy_stats - Update the PHY statistics counters
+ * @adapter: board private structure
+ **/
+static void e1000e_update_phy_stats(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ s32 ret_val;
+ u16 phy_data;
+
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val)
+ return;
+
+ hw->phy.addr = 1;
+
+#define HV_PHY_STATS_PAGE 778
+ /*
+ * A page set is expensive so check if already on desired page.
+ * If not, set to the page with the PHY status registers.
+ */
+ ret_val = e1000e_read_phy_reg_mdic(hw, IGP01E1000_PHY_PAGE_SELECT,
+ &phy_data);
+ if (ret_val)
+ goto release;
+ if (phy_data != (HV_PHY_STATS_PAGE << IGP_PAGE_SHIFT)) {
+ ret_val = e1000e_write_phy_reg_mdic(hw,
+ IGP01E1000_PHY_PAGE_SELECT,
+ (HV_PHY_STATS_PAGE <<
+ IGP_PAGE_SHIFT));
+ if (ret_val)
+ goto release;
+ }
+
+ /* Read/clear the upper 16-bit registers and read/accumulate lower */
+
+ /* Single Collision Count */
+ e1000e_read_phy_reg_mdic(hw, HV_SCC_UPPER & MAX_PHY_REG_ADDRESS,
+ &phy_data);
+ ret_val = e1000e_read_phy_reg_mdic(hw,
+ HV_SCC_LOWER & MAX_PHY_REG_ADDRESS,
+ &phy_data);
+ if (!ret_val)
+ adapter->stats.scc += phy_data;
+
+ /* Excessive Collision Count */
+ e1000e_read_phy_reg_mdic(hw, HV_ECOL_UPPER & MAX_PHY_REG_ADDRESS,
+ &phy_data);
+ ret_val = e1000e_read_phy_reg_mdic(hw,
+ HV_ECOL_LOWER & MAX_PHY_REG_ADDRESS,
+ &phy_data);
+ if (!ret_val)
+ adapter->stats.ecol += phy_data;
+
+ /* Multiple Collision Count */
+ e1000e_read_phy_reg_mdic(hw, HV_MCC_UPPER & MAX_PHY_REG_ADDRESS,
+ &phy_data);
+ ret_val = e1000e_read_phy_reg_mdic(hw,
+ HV_MCC_LOWER & MAX_PHY_REG_ADDRESS,
+ &phy_data);
+ if (!ret_val)
+ adapter->stats.mcc += phy_data;
+
+ /* Late Collision Count */
+ e1000e_read_phy_reg_mdic(hw, HV_LATECOL_UPPER & MAX_PHY_REG_ADDRESS,
+ &phy_data);
+ ret_val = e1000e_read_phy_reg_mdic(hw,
+ HV_LATECOL_LOWER &
+ MAX_PHY_REG_ADDRESS,
+ &phy_data);
+ if (!ret_val)
+ adapter->stats.latecol += phy_data;
+
+ /* Collision Count - also used for adaptive IFS */
+ e1000e_read_phy_reg_mdic(hw, HV_COLC_UPPER & MAX_PHY_REG_ADDRESS,
+ &phy_data);
+ ret_val = e1000e_read_phy_reg_mdic(hw,
+ HV_COLC_LOWER & MAX_PHY_REG_ADDRESS,
+ &phy_data);
+ if (!ret_val)
+ hw->mac.collision_delta = phy_data;
+
+ /* Defer Count */
+ e1000e_read_phy_reg_mdic(hw, HV_DC_UPPER & MAX_PHY_REG_ADDRESS,
+ &phy_data);
+ ret_val = e1000e_read_phy_reg_mdic(hw,
+ HV_DC_LOWER & MAX_PHY_REG_ADDRESS,
+ &phy_data);
+ if (!ret_val)
+ adapter->stats.dc += phy_data;
+
+ /* Transmit with no CRS */
+ e1000e_read_phy_reg_mdic(hw, HV_TNCRS_UPPER & MAX_PHY_REG_ADDRESS,
+ &phy_data);
+ ret_val = e1000e_read_phy_reg_mdic(hw,
+ HV_TNCRS_LOWER & MAX_PHY_REG_ADDRESS,
+ &phy_data);
+ if (!ret_val)
+ adapter->stats.tncrs += phy_data;
+
+release:
+ hw->phy.ops.release(hw);
+}
+