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path: root/drivers/net/sky2.c
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Diffstat (limited to 'drivers/net/sky2.c')
-rw-r--r--drivers/net/sky2.c47
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);