From 111b9dc5c981ba608b4afede37237cfeb67b07f2 Mon Sep 17 00:00:00 2001 From: Jesse Brandeburg Date: Tue, 10 Feb 2009 12:51:20 +0000 Subject: [PATCH] e1000e: add aer support most if not all of the devices supported by e1000e support AER (Advanced Error Reporting) so we attempt to register with the OS that we know how to reset ourselves after a fatal error. Signed-off-by: Jesse Brandeburg Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/e1000e/netdev.c | 39 ++++++++++++++++++++++++++++++--------- 1 file changed, 30 insertions(+), 9 deletions(-) diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c index c425b19..00e19e9 100644 --- a/drivers/net/e1000e/netdev.c +++ b/drivers/net/e1000e/netdev.c @@ -44,6 +44,7 @@ #include #include #include +#include #include "e1000.h" @@ -4521,6 +4522,14 @@ static int e1000_resume(struct pci_dev *pdev) return err; } + /* AER (Advanced Error Reporting) hooks */ + err = pci_enable_pcie_error_reporting(pdev); + if (err) { + dev_err(&pdev->dev, "pci_enable_pcie_error_reporting failed " + "0x%x\n", err); + /* non-fatal, continue */ + } + pci_set_master(pdev); pci_enable_wake(pdev, PCI_D3hot, 0); @@ -4615,24 +4624,29 @@ static pci_ers_result_t e1000_io_slot_reset(struct pci_dev *pdev) struct e1000_adapter *adapter = netdev_priv(netdev); struct e1000_hw *hw = &adapter->hw; int err; + pci_ers_result_t result; e1000e_disable_l1aspm(pdev); err = pci_enable_device_mem(pdev); if (err) { dev_err(&pdev->dev, "Cannot re-enable PCI device after reset.\n"); - return PCI_ERS_RESULT_DISCONNECT; - } - pci_set_master(pdev); - pci_restore_state(pdev); + result = PCI_ERS_RESULT_DISCONNECT; + } else { + pci_set_master(pdev); + pci_restore_state(pdev); - pci_enable_wake(pdev, PCI_D3hot, 0); - pci_enable_wake(pdev, PCI_D3cold, 0); + pci_enable_wake(pdev, PCI_D3hot, 0); + pci_enable_wake(pdev, PCI_D3cold, 0); - e1000e_reset(adapter); - ew32(WUS, ~0); + e1000e_reset(adapter); + ew32(WUS, ~0); + result = PCI_ERS_RESULT_RECOVERED; + } - return PCI_ERS_RESULT_RECOVERED; + pci_cleanup_aer_uncorrect_error_status(pdev); + + return result; } /** @@ -5063,6 +5077,7 @@ static void __devexit e1000_remove(struct pci_dev *pdev) { struct net_device *netdev = pci_get_drvdata(pdev); struct e1000_adapter *adapter = netdev_priv(netdev); + int err; /* * flush_scheduled work may reschedule our watchdog task, so @@ -5097,6 +5112,12 @@ static void __devexit e1000_remove(struct pci_dev *pdev) free_netdev(netdev); + /* AER disable */ + err = pci_disable_pcie_error_reporting(pdev); + if (err) + dev_err(&pdev->dev, + "pci_disable_pcie_error_reporting failed 0x%x\n", err); + pci_disable_device(pdev); } -- 1.8.2.3