Is LS1043a able to manage PCie MSI-X interrupt ?

[desauziersgeoff]

Target Qoriq LS1043A : I would to implement MSI-X interrupts on my PCI express interface. In the reference manual of Qoriq LS1043a, I have found information about "Legacy interrupts", "MSI interrupts", but nothing about "MSI-X" interrupts.

I think that "MSI-X" interrupts are not supported, but I didn't find any information about. Any help to confirm that ?

[ufedor]

> I think that "MSI-X" interrupts are not supported

Correct, only MSI extension is supported.

Please refer to the LS1043A RM describing the MSI mechanism implementation:

11.3.54 Shared Message Signaled Interrupt Index Register (SCFG_G0MSIIR)

11.3.55 Shared Message Signaled Interrupt Register (SCFG_G0MSIR)

26.1.1.1 PCI Express MSI implementation