> In a case where you have a device that which supports MSI-X (multiple > interrupts) but the device in default is in MSI mode, ie some > configuration change is needed on the device. In such a case, how > would one handle between MSI-X and MSI ? > > ie the device initially doesn't support MSI-X
I don't understand the question really. Does the PCI spec even allow a device to be in MSI mode by default? Surely the OS must initialize the address/message before the device can generate an MSI? What device do you have in mind? I guess the interesting case is a PCIe device that supports MSI and MSI-X but not legacy interrupts. However I would assume such a device would come up with both MSI and MSI-X disabled. - R. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
