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sky2: don't use AER routines 

Using PCIE advanced error recovery stuff creates more user problems than it's worth.
The AER stuff depends on MMCONFIG and in many configurations it just doesn't work.
Plus it doesn't add any real functionality to the driver. The sky2
driver handles its own errors fine as is.

This reverts 555382cbfc

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Stephen Hemminger 2007-11-27 11:02:32 -08:00 committed by Jeff Garzik
parent b32f40c485
commit 7782c8c4d7
1 changed files with 7 additions and 30 deletions
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37
drivers/net/sky2.c
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@ -31,7 +31,6 @@
#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>
@ -2432,26 +2431,15 @@ static void sky2_hw_intr(struct sky2_hw *hw)
if (status & Y2_IS_PCI_EXP) {
/* PCI-Express uncorrectable Error occurred */
int aer = pci_find_aer_capability(hw->pdev);
u32 err;
if (aer) {
pci_read_config_dword(pdev, aer + PCI_ERR_UNCOR_STATUS,
&err);
pci_cleanup_aer_uncorrect_error_status(pdev);
} else {
/* Either AER not configured, or not working
* because of bad MMCONFIG, so just do recover
* manually.
*/
err = sky2_read32(hw, Y2_CFG_AER + PCI_ERR_UNCOR_STATUS);
sky2_write32(hw, Y2_CFG_AER + PCI_ERR_UNCOR_STATUS,
0xfffffffful);
}
err = sky2_read32(hw, Y2_CFG_AER + PCI_ERR_UNCOR_STATUS);
sky2_write32(hw, Y2_CFG_AER + PCI_ERR_UNCOR_STATUS,
0xfffffffful);
if (net_ratelimit())
dev_err(&pdev->dev, "PCI Express error (0x%x)\n", err);
sky2_read32(hw, Y2_CFG_AER + PCI_ERR_UNCOR_STATUS);
}
if (status & Y2_HWE_L1_MASK)
@ -2806,24 +2794,13 @@ static void sky2_reset(struct sky2_hw *hw)
cap = pci_find_capability(pdev, PCI_CAP_ID_EXP);
if (cap) {
if (pci_find_aer_capability(pdev)) {
/* Check for advanced error reporting */
pci_cleanup_aer_uncorrect_error_status(pdev);
pci_cleanup_aer_correct_error_status(pdev);
} else {
dev_warn(&pdev->dev,
"PCI Express Advanced Error Reporting"
" not configured or MMCONFIG problem?\n");
sky2_write32(hw, Y2_CFG_AER + PCI_ERR_UNCOR_STATUS,
0xfffffffful);
}
sky2_write32(hw, Y2_CFG_AER + PCI_ERR_UNCOR_STATUS,
0xfffffffful);
/* 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))
else
hwe_mask |= Y2_IS_PCI_EXP;
}