From 885125399e2c72b6466cfd2fbcb755be499b53a2 Mon Sep 17 00:00:00 2001 From: PJ Waskiewicz Date: Fri, 13 Mar 2009 22:15:10 +0000 Subject: [PATCH] ixgbe: Two small fixes for 82599 when bringing the device down and for WoL The Tx DMA unit should be disabled when bringing the device down. Also, the KX4 device with 82599 supports WoL, so we should clear the Wake Up Status (WUS) after a PCIe slot reset. Signed-off-by: Peter P Waskiewicz Jr Signed-off-by: Jesse Brandeburg Acked-by: Mallikarjuna R Chilakala Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/ixgbe/ixgbe_main.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c index 892195f2ad9b..3e981a1b0cd6 100644 --- a/drivers/net/ixgbe/ixgbe_main.c +++ b/drivers/net/ixgbe/ixgbe_main.c @@ -2558,6 +2558,11 @@ void ixgbe_down(struct ixgbe_adapter *adapter) IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(j), (txdctl & ~IXGBE_TXDCTL_ENABLE)); } + /* Disable the Tx DMA engine on 82599 */ + if (hw->mac.type == ixgbe_mac_82599EB) + IXGBE_WRITE_REG(hw, IXGBE_DMATXCTL, + (IXGBE_READ_REG(hw, IXGBE_DMATXCTL) & + ~IXGBE_DMATXCTL_TE)); netif_carrier_off(netdev); @@ -4794,7 +4799,7 @@ static pci_ers_result_t ixgbe_io_slot_reset(struct pci_dev *pdev) pci_enable_wake(pdev, PCI_D3cold, 0); ixgbe_reset(adapter); - + IXGBE_WRITE_REG(&adapter->hw, IXGBE_WUS, ~0); result = PCI_ERS_RESULT_RECOVERED; }