[LinuxBIOS] PCIe switch

[Tom Sylla]

I have a platform with a PCIe switch (turns one x8 into four x1s)
connected to an HT2100. Do I need to add the description of the four
resulting PCI busses to Config.lb for my platform? Is that true for
PCI bridges in general?

Tom

[ron minnich]

On 9/5/07, Tom Sylla  wrote:
> I have a platform with a PCIe switch (turns one x8 into four x1s)
> connected to an HT2100. Do I need to add the description of the four
> resulting PCI busses to Config.lb for my platform? Is that true for
> PCI bridges in general?

Well, if you don't get an answer I will take a look. this is a first for me too.

ron

[Stefan Reinauer]

* Tom Sylla  [070905 17:16]:
> I have a platform with a PCIe switch (turns one x8 into four x1s)
> connected to an HT2100. Do I need to add the description of the four
> resulting PCI busses to Config.lb for my platform? Is that true for
> PCI bridges in general?

If the PCIe bridge is a PCI device itself, it should be sufficient to
mention the PCIe "driver" using the "driver" keyword in Config.lb to get
the device specific code executed for each device found in the system.

You _might_ have to mention the bridge in some cases, like when there
are undetectable devices behind the bridge. 
Most Config.lb files in LinuxBIOSv2 are quite over specified in this
matter.

Stefan