Hi Manas,

I've added some answers inline.

By the way are you aware of our new PCI framework here -
http://community.qnx.com/sf/frs/do/viewRelease/projects.bsp/frs.updated_pci
e_framework_for_qnx_s.qnx_sdp_6_6_pcie_server_archive? The old
"pci-bios-v2" will no longer be used in future products and plus the new
PCI server has much better support for MSI and MSI-X, cleaner APIs, and
several new features. If possible I'd suggest using the new PCI server.


On 2015-10-16, 5:38 AM, "manas sahoo" <community-noreply@qnx.com> wrote:

>Hi, I have a x86 board with 2 PCIe cards. I am able to boot QNX 6.5.0SP1
>from a USB drive on the target. I booted with startup-apic & pci-bios-v2
>is running on the board.
>
>Now my question is
>1) How do i know whether MSI is enabled or not?

[Mark] - With the old PCI server (pci-bios-v2) if the server detects that
the device supports MSI's they get enabled automatically. There is a flag
(PCI_USE_MSI) which requests that MSIs be enabled but even if the flag
isn't specified we enable MSIs anyway (IF the device supports MSIs).

>2) How to find out Device & vendor ID for MSI?

[Mark] You can use the "pci" utility with verbosity...pci -vvvvv

>3) How to get MSI interrupts working?

[Mark] - You could attach to the interrupt returned by the PCI server and
seeing if your driver is working as expected.