RE: [PATCH]PCI Express Port Bus Driver

From: Nguyen, Tom L
Date: Wed Dec 15 2004 - 19:18:38 EST


On Wednesday, December 15, 2004 1:37 PM, Greg KH wrote:
>> +config PCIEPORTBUS
>> + bool "PCI Express support"
>> + depends on PCI_GOMMCONFIG
>
> This should also work if PCI_GOANY is selected, right? Otherwise this
> feature will never be turned on by any distro :(
PCIE port bus driver depends on PCI_GOMMCONFIG to locate service
attributes
for advanced error reporting (AER) and virtual channel (VC) for each
PCIE port.
Without PCI_GOMMCONFIG, then a read to 0x100 offset or above will return
0xffff;
in other words, neither AER nor VC service support is found. We would
like to move
forward to have PCI_GOMMCONFIG dependency as the new features come
along. RHEL 4
is shipping with PCI_GOMMCONFIG configured into the kernel by default
and we
expect the next major version of SuSE linux to do the same.

Thanks,
Long

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