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sky2: handle advanced error recovery config issues

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The PCI AER support may not work for a couple of reasons.
It may not be configured into the kernel or there may be a BIOS
bug that prevents MMCONFIG from working.  If MMCONFIG doesn't work
then the PCI registers that control AER will not be accessible via
pci_read_config functions; luckly there is another window to access
PCI space in the device, so use that.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Stephen Hemminger
2007-11-05 15:52:13 -08:00
committed by Jeff Garzik
parent ab1a145638
commit cf06ffb4df
2 changed files with 30 additions and 7 deletions
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3
drivers/net/sky2.h
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@@ -247,7 +247,8 @@ enum csr_regs {
B3_PA_CTRL = 0x01f0,
B3_PA_TEST = 0x01f2,
Y2_CFG_SPC = 0x1c00,
Y2_CFG_SPC = 0x1c00, /* PCI config space region */
Y2_CFG_AER = 0x1d00, /* PCI Advanced Error Report region */
};
/* B0_CTST 16 bit Control/Status register */