Altera IP Compiler for PCI Express - Manual (Page 284)

15–52 Chapter 15: Testbench and Design Example
BFM Procedures and Functions
IP Compiler for PCI Express User Guide August 2014 Altera Corporation
dma_wr_test Procedure
Use the dma_wr_test procedure for DMA writes from the BFM shared memory to the
endpoint memory.
dma_set_rd_desc_data Procedure
Use the dma_set_rd_desc_data procedure to configure the BFM shared memory for
the DMA read.
dma_set_wr_desc_data Procedure
Use the dma_set_wr_desc_data procedure to configure the BFM shared memory for
the DMA write.
dma_set_header Procedure
Use the dma_set_header procedure to configure the DMA descriptor table for DMA
read or DMA write.
Table 15–62. dma_wr_test Procedure
Location altpcietb_bfm_driver_chaining.v or altpcietb_bfm_driver_chaining.vhd
Syntax dma_wr_test (bar_table, bar_num, use_msi, use_eplast)
Arguments
bar_table Address of the endpoint bar_table structure in BFM shared memory.
bar_num BAR number to analyze.
Use_msi When set, the root port uses native PCI Express MSI to detect the DMA completion.
Use_eplast When set, the root port uses BFM shared memory polling to detect the DMA completion.
Table 15–63. dma_set_rd_desc_data Procedure
Location altpcietb_bfm_driver_chaining.v or altpcietb_bfm_driver_chaining.vhd
Syntax dma_set_rd_desc_data (bar_table, bar_num)
Arguments
bar_table Address of the endpoint bar_table structure in BFM shared memory.
bar_num BAR number to analyze.
Table 15–64. dma_set_wr_desc_data_header Procedure
Location altpcietb_bfm_driver_chaining.v or altpcietb_bfm_driver_chaining.vhd
Syntax dma_set_wr_desc_data_header (bar_table, bar_num)
Arguments
bar_table Address of the endpoint bar_table structure in BFM shared memory.
bar_num BAR number to analyze.
Table 15–65. dma_set_header Procedure
Location altpcietb_bfm_driver_chaining.v or altpcietb_bfm_driver_chaining.vhd
Syntax
dma_set_header (bar_table, bar_num, Descriptor_size, direction, Use_msi, Use_eplast,
Bdt_msb, Bdt_lab, Msi_number, Msi_traffic_class, Multi_message_enable)