How Can I set up DMA operation with my own PC software application?

I think the correct method is the software application writes Descriptor Table Header into Bar2(or3) mapped endpoint header descriptor registers at offset 0x00-0x1c.

PCIe compiler 7.2 User Guide page 6-17 said,"altpcie_dma_prg_reg-This module contains the descriptor header table registers which get programmed by the software application.This module collects PCI Express transaction layer packets from the software application with the TLP type Mwr on Bar2 or 3" and "Header register module-RC programs the descriptor header(4 DWORDS) at the beginning of the DMA".

The next paragraph,"altpcie_dma_descriptor-This module retrieves the DMA read or write descriptor from the root port memory,and stores it in descriptor FIFO.This module issues PCI Express transaction layer packets to the BFM shared memory with the TLP type MRd".

In the simulation model,the Root Port BFM sources data(descriptors) for completions in response to read transactions received from the PCIE link,I think. But in the software application ,which module will response to the altpcie_dma_descriptor issued MRd TLP? Does the Jungo Pcie driver response automatically? Or should I write codes to deal with such MRd TLP in my software app?

At page 6-18,Table 6-4 descripted the Bar/Address map. Should I set Bar4(or5) if I want to use the rc_slave module in the example to bypass the chaining dma? But Bar0(or1) is also descripted to be used for rc_slave module.A mistake?

I have so many questions with the chaining dma example.I am wondering why Altera not release the source code of pcie software application such as altpcie_demo.exe.

Thanks for reply.