1 files changed, 27 insertions, 20 deletions

diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index 77bfcf0dda3..b81d81746c2 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -31,6 +31,7 @@
 #include <linux/etherdevice.h>
 #include <linux/ethtool.h>
 #include <linux/pci.h>
+#include <linux/aer.h>
 #include <linux/ip.h>
 #include <net/ip.h>
 #include <linux/tcp.h>
@@ -2421,7 +2422,11 @@ static void sky2_hw_error(struct sky2_hw *hw, unsigned port, u32 status)
 
 static void sky2_hw_intr(struct sky2_hw *hw)
 {
+	struct pci_dev *pdev = hw->pdev;
 	u32 status = sky2_read32(hw, B0_HWE_ISRC);
+	u32 hwmsk = sky2_read32(hw, B0_HWE_IMSK);
+
+	status &= hwmsk;
 
 	if (status & Y2_IS_TIST_OV)
 		sky2_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_CLR_IRQ);
@@ -2431,7 +2436,7 @@ static void sky2_hw_intr(struct sky2_hw *hw)
 
 		pci_err = sky2_pci_read16(hw, PCI_STATUS);
 		if (net_ratelimit())
-			dev_err(&hw->pdev->dev, "PCI hardware error (0x%x)\n",
+			dev_err(&pdev->dev, "PCI hardware error (0x%x)\n",
 			        pci_err);
 
 		sky2_pci_write16(hw, PCI_STATUS,
@@ -2440,22 +2445,13 @@ static void sky2_hw_intr(struct sky2_hw *hw)
 
 	if (status & Y2_IS_PCI_EXP) {
 		/* PCI-Express uncorrectable Error occurred */
-		u32 pex_err;
-
-		pex_err = sky2_pci_read32(hw, PEX_UNC_ERR_STAT);
+		int pos = pci_find_aer_capability(hw->pdev);
+		u32 err;
 
+		pci_read_config_dword(pdev, pos + PCI_ERR_UNCOR_STATUS, &err);
 		if (net_ratelimit())
-			dev_err(&hw->pdev->dev, "PCI Express error (0x%x)\n",
-				pex_err);
-
-		/* clear the interrupt */
-		sky2_pci_write32(hw, PEX_UNC_ERR_STAT,
-				       0xffffffffUL);
-		if (pex_err & PEX_FATAL_ERRORS) {
-			u32 hwmsk = sky2_read32(hw, B0_HWE_IMSK);
-			hwmsk &= ~Y2_IS_PCI_EXP;
-			sky2_write32(hw, B0_HWE_IMSK, hwmsk);
-		}
+			dev_err(&pdev->dev, "PCI Express error (0x%x)\n", err);
+		pci_cleanup_aer_uncorrect_error_status(pdev);
 	}
 
 	if (status & Y2_HWE_L1_MASK)
@@ -2775,8 +2771,10 @@ static int __devinit sky2_init(struct sky2_hw *hw)
 
 static void sky2_reset(struct sky2_hw *hw)
 {
+	struct pci_dev *pdev = hw->pdev;
 	u16 status;
-	int i;
+	int i, cap;
+	u32 hwe_mask = Y2_HWE_ALL_MASK;
 
 	/* disable ASF */
 	if (hw->chip_id == CHIP_ID_YUKON_EX) {
@@ -2800,10 +2798,19 @@ static void sky2_reset(struct sky2_hw *hw)
 
 	sky2_write8(hw, B0_CTST, CS_MRST_CLR);
 
-	/* clear any PEX errors */
-	if (pci_find_capability(hw->pdev, PCI_CAP_ID_EXP))
-		sky2_pci_write32(hw, PEX_UNC_ERR_STAT, 0xffffffffUL);
+	cap = pci_find_capability(pdev, PCI_CAP_ID_EXP);
+	if (cap) {
+		/* Check for advanced error reporting */
+		pci_cleanup_aer_uncorrect_error_status(pdev);
+		pci_cleanup_aer_correct_error_status(pdev);
 
+		/* If error bit is stuck on ignore it */
+		if (sky2_read32(hw, B0_HWE_ISRC) & Y2_IS_PCI_EXP)
+			dev_info(&pdev->dev, "ignoring stuck error report bit\n");
+
+		else if (pci_enable_pcie_error_reporting(pdev))
+			hwe_mask |= Y2_IS_PCI_EXP;
+	}
 
 	sky2_power_on(hw);
 
@@ -2855,7 +2862,7 @@ static void sky2_reset(struct sky2_hw *hw)
 		sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XS2), SK_RI_TO_53);
 	}
 
-	sky2_write32(hw, B0_HWE_IMSK, Y2_HWE_ALL_MASK);
+	sky2_write32(hw, B0_HWE_IMSK, hwe_mask);
 
 	for (i = 0; i < hw->ports; i++)
 		sky2_gmac_reset(hw, i);