How do I code a driver for a PCI device (VMIC reflective memory) to correctly
determine the IRQ so that it works for both UP and SMP? Running RedHat 6.0
(2.2.5-15) the IRQ reported in /proc/pci is 9 for UP and 16 or 17 for SMP but
pci_read_config_byte always returns 9 as the interrupt.
The hardware is a split backplane with a Trenton DP2 SBC with 2 PIII-500Mhz in
each backplane half. The SBCs have the 82443BX 440BX PCI bridge and 82371AB
PIIX4 ISA bridge. The reflective memory will connect the backplanes sides and to
another box set up the same.
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