igb: force phy power up/down

Signed-off-by: Intel

diff --git a/lib/librte_pmd_e1000/igb_ethdev.c b/lib/librte_pmd_e1000/igb_ethdev.c
index 4cea254..b8be40e 100644 (file)
--- a/lib/librte_pmd_e1000/igb_ethdev.c
+++ b/lib/librte_pmd_e1000/igb_ethdev.c
@@ -757,6 +757,15 @@ eth_igb_stop(struct rte_eth_dev *dev)
        igb_pf_reset_hw(hw);
        E1000_WRITE_REG(hw, E1000_WUC, 0);
 
+       /* Set bit for Go Link disconnect */
+       if (hw->mac.type >= e1000_82580) {
+               uint32_t phpm_reg;
+
+               phpm_reg = E1000_READ_REG(hw, E1000_82580_PHY_POWER_MGMT);
+               phpm_reg |= E1000_82580_PM_GO_LINKD;
+               E1000_WRITE_REG(hw, E1000_82580_PHY_POWER_MGMT, phpm_reg);
+       }
+
        /* Power down the phy. Needed to make the link go Down */
        e1000_power_down_phy(hw);
 
@@ -778,6 +787,15 @@ eth_igb_close(struct rte_eth_dev *dev)
        igb_release_manageability(hw);
        igb_hw_control_release(hw);
 
+       /* Clear bit for Go Link disconnect */
+       if (hw->mac.type >= e1000_82580) {
+               uint32_t phpm_reg;
+
+               phpm_reg = E1000_READ_REG(hw, E1000_82580_PHY_POWER_MGMT);
+               phpm_reg &= ~E1000_82580_PM_GO_LINKD;
+               E1000_WRITE_REG(hw, E1000_82580_PHY_POWER_MGMT, phpm_reg);
+       }
+
        igb_dev_clear_queues(dev);
 
        memset(&link, 0, sizeof(link));