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Altera_Forum
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10 years ago

MSI-X Interrupt is not generating on Cycleon V FPGA board

I am working on X86 PCIe Linux Driver to implement MSI-X Interrupt on Cycleon V FPGA board with reference design taken from Qsys. I have followed below steps in linux driver to enable MSI-X ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
10 years ago

Hi andrei,

First of all, Tell me that are you using Linux Host System or Windows Host System to implement MSI-X Interrupt Service Routine in your design? if Linux Host System than which Linux Kernel Version are you using?

There is one function called "pci_msix_vec_count" which returns total number of MSI-X Interrupt Vectors assigned in your design if you are using Linux Host System and Linux Kernel Version is >= 3.14.

So, Please let me know output of above function if you are using Linux Host System and Linux Kernel Version is >= 3.14.

Also confirm with Altera Provider that MSI-X Interrupt Component you have used is proper if you are using MSI-X Interrupt Component Provided by him.

Regards,

Ritesh Prajapati