PCI Express computer side program

[spman]

Hi,
I have a design with PCIe and DDR3 RAM on ML605 board. I've implemented the RAM successfully and I'm currently trying to implement PCIe.
I'm confused with the computer side program! How should I send data from computer to FPGA? In the Xilinx example design, a program (PCItree) is used only for testing throughput. But I don't know how to send my data and how to direct them to the RAM. Is it possible to make DMA between the PCIe core and the RAM?

Thanks in advance.

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Another question in regard to this topic:
What does mean each of the terms "Endpoint application" and "Root port application" ? I encountered to these in the Virtex-6 PCIe user guide.

 

[elec4fun]

hi,

From the "computer side", PCIe is like PCI. So if yo want to communicate with your device, you need a device driver (if you use linux, you can access your device from the user's land using mmap).
A root complex is the PCIe "master". The root complex talks to endpoints.

Franck.

 

[spman]

Thanks Franck

A root complex is the PCIe "master". The root complex talks to endpoints.

What are endpoints in the literature?

Do you know about communication with PCI in windows?

 

[elec4fun]

Endpoints are devices.

I've done some communication with a PCI device under windows. I wrote a WDF driver.
I know you can also use some commercial API like Jungo Windriver to handle PCI communication.

Franck.