src/sys/bus/pci/pcisupport.c - diff

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version 1.8, 2004/01/15 20:35:06	version 1.9, 2004/02/10 07:26:06
Line 776 static int pcib_probe(device_t dev)	Line 776 static int pcib_probe(device_t dev)
return ENXIO;	return ENXIO;
}	}

	/*
	* Attach a pci bus device to a motherboard or pci-to-pci bridge bus.
	* Due to probe recursion it is possible for pci-to-pci bridges (such as
	* on the DELL2550) to attach before all the motherboard bridges have
	* attached. We must call device_add_child() with the secondary id
	* rather then -1 in order to ensure that we do not accidently use
	* a motherboard PCI id, otherwise the device probe will believe that
	* the later motherboard bridge bus has already been probed and refuse
	* to probe it. The result: disappearing busses!
	*/
static int pcib_attach(device_t dev)	static int pcib_attach(device_t dev)
{	{
u_int8_t secondary;	u_int8_t secondary;
Line 785 static int pcib_attach(device_t dev)	Line 795 static int pcib_attach(device_t dev)

secondary = pci_get_secondarybus(dev);	secondary = pci_get_secondarybus(dev);
if (secondary) {	if (secondary) {
child = device_add_child(dev, "pci", -1);	child = device_add_child(dev, "pci", secondary);
(int) device_get_softc(dev) = secondary;	(int) device_get_softc(dev) = secondary;
return bus_generic_attach(dev);	return bus_generic_attach(dev);
} else	} else