From: Intel <intel.com>
Date: Mon, 3 Jun 2013 00:00:00 +0000 (+0000)
Subject: igb: force phy power up/down
X-Git-Tag: spdx-start~11210
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=3af34dec0b41dba0a1e0e8f21d051d2dfb390e9f;p=dpdk.git

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 4cea254550..b8be40e3cd 100644
--- 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));