MSI PCIE Interrupt : not receiving interrupt - MSI PCIE Interrupt : not receiving interrupt Hi, We are working on a custom board with X86 cpu board with Arria 10 FPGA as a peripheral device communicating over pcie. We are trying to enable MSI interrupt to be received from FPGA Board. Attached are the FPGA board configuration, signal tap capture output , sample output driver which is used to verify MSI IRQ received in x86 custom board. we have followed the procedure explained in the white paper to register and handle MSI interrupts. https://www.intel.com/content/dam/www/public/us/en/documents/white-papers/msg-signaled-interrupts-paper.pdf We are working on centos-7.3, Linux kernel version - 3.10.0-514.el7.x86_64. We have used the following apis from pci core. pci_get_device, pci_resource_start, pci_resoure_len ioremap_noncache pci_enable_msi_range request_irq(, IRQF_SHARED,*); We are not receiving the MSI interrupts on the X86 Host. We request help to debug this issue. Regards, Harish Replies: Re: MSI PCIE Interrupt : not receiving interrupt Thanks for the timely support Replies: Re: MSI PCIE Interrupt : not receiving interrupt May I kindly close the issue, as the issue is open for quite a long time. Kindly requesting to open a new thread if the issue is still open Replies: Re: MSI PCIE Interrupt : not receiving interrupt Hi, Kindly note for records, the issue is handled internally. Regards, Rahul S Replies: Re: MSI PCIE Interrupt : not receiving interrupt Yes, it is linked to the below issue listed. https://community.intel.com/t5/FPGA-Intellectual-Property/MSI-generation-in-PCIe/m-p/1222134#M22476 Replies: Re: MSI PCIE Interrupt : not receiving interrupt Hi , May I know this thread is related to the below thread? https://community.intel.com/t5/FPGA-Intellectual-Property/MSI-generation-in-PCIe/m-p/1222134#M22476