Ingo Molnar wrote:
so my guess would be that this device doesnt do MMIO, and the PIO inb()
causes some bad BIOS-based SMM handler/emulator to trigger, which takes
16.6 msecs. If indeed the device is not in MMIO mode, is there a way to
force it into MMIO mode, to test this theory?
Yes, but that carries with it an entirely new programming set, to use
MMIO: http://marc.theaimsgroup.com/?l=linux-ide&m=114124501116060&w=2
Not like NICs, where you can just point it at another PCI BAR.
Jeff
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