topic Re: MSI Interrupt Message Address in i.MX Processors

MSI Interrupt Message Address

iqrajaved — Thu, 29 Mar 2018 14:56:26 GMT

Hi,

I am working on implementation of PCIe driver for IMX6 platform. The basic functionality of driver is working fine and tested. But in case of MSI, i am a bit confused that what should be the value written to MSI message address register in the MSI capabilities register set of EP? I didn't find anything clearly written in the Technical Reference Manual. All it says is that the address should be common in MSI capabilities as well as MSI controller address register. The screenshot is also added for this.

Can anyone please guide me about this? May be there is something that I am overlooking.

Thank you in anticipation.

Iqra Javed

Re: MSI Interrupt Message Address

Rita_Wang — Mon, 02 Apr 2018 01:13:12 GMT

Hi,

You can try to refer to the thread in our community https://community.nxp.com/thread/464959. Hope this can do help for you.

Have a nice day

Rita

Re: MSI Interrupt Message Address

iqrajaved — Mon, 02 Apr 2018 05:18:20 GMT

Thank you b45499‌ for replying.

I did try that thread. But its not clearly mentioned there too what should be written in the MSI Address Regiter of Capabilities of Endpoint and MSI controller address register.