[openib-general] Low cost MBs compatible with Mellanox PCIE Cards

[Roland Dreier]

    Jason> Unfortunately the board's BIOS's ACPI tables are totally
    Jason> broken and the BIOS assigns every interrupt source in the
    Jason> system to IRQ 5 :< At least it does work in full APIC mode
    Jason> which means it might be possible to get MSI working if the
    Jason> nvidia bridge isn't broken.

I've not seen any problems with MSI/MSI-X with nforce4 and PCIe HCAs
on both my Asus A8N-SLI and HP DL145G2 systems.

Just building a kernel with CONFIG_PCI_MSI enabled might help, since
it changes the way the kernel numbers interrupts.

 - R.