PCI Probe Question

Paul Mackerras paulus at samba.org
Wed Jan 28 10:52:21 EST 2004

Linda Xie writes:

> I am currently testing pcnet32 PHP on a PPC64 plateform. One of the
> adapters I am using is a multifunction device (it has 4 ports). From
> a PCI Hotplug point of view, because we phsically insert/remove the
> adapter, it makes more sense to have all functions(4 ports) get
> configured/unconfigured at the same time.

If that is the same 4-port pcnet32 card that I have used in the past,
it has a PCI-PCI bridge with four slots behind it, each with a
separate pcnet32 chip connected to it.  So that card doesn't have 4
functions, in the PCI sense of the term.


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