Às 11:22 AM de 5/8/2017, Marc Zyngier escreveu: > 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? I started working one hour ago and still putting some subjects in order, I am going to return to PCI in a bit. I will keep you updated. I thought you were in US Pacific timezone. Thanks, Joao > > Thanks, > > M. >
