On 08/05/17 10:59, Joao Pinto wrote: > Às 3:57 PM de 5/5/2017, Marc Zyngier escreveu: >> Joao, >> >> On 05/05/17 15:11, Joao Pinto wrote: >>> Hello, >>> I am currently adding the support for both MSI and MSI-x in pcie-designware and >>> I am now facing a dificulty. >>> >>> My test endpoint is a USB 3.1 MSI / MSI-X capable and I tested that with >>> the changes introduced by this patch we are able to enable MSI and MSI-X >>> in this endpoint (depends on the usage of the MSI_FLAG_PCI_MSIX flag). >>> >>> The problem I am facing now is that Intc for the USB 3.1 Endpoint is completely >>> bogus (524288) when it should be 1, and so I am not receiving any interrupts >>> from the endpoint. >> >> It is not bogus at all. It is computed from the PCI requester ID in >> pci_msi_domain_calc_hwirq. What you're seeing is the PCI/MDI domain >> view of that interrupt, which is completely virtual. >> >> The real thing happens in your own irqdomain, where the hwirq for IRQ46 >> is probably 1 (only you can know that). As for why it doesn't work, see >> below: >> >>> >>> I would apreciate that more experienced people in this interrupt subject could >>> give me an hint. [...] > Yep makes perfectly sense and thanks for clearing the Domains :), I understood > them now. I guess that you have your MSI controller working with MSI-X now? Thanks, M. -- Jazz is not dead. It just smells funny...
