Altera IP Compiler for PCI Express - Manual (Page 287)

Chapter 15: Testbench and Design Example 15–55
BFM Procedures and Functions
August 2014 Altera Corporation IP Compiler for PCI Express User Guide
dma_set_rclast Procedure
The dma_set_rclast procedure starts the DMA operation by writing to the endpoint
DMA register the value of the last descriptor to process (RCLast).
ebfm_display_verb Procedure
The ebfm_display_verb procedure calls the procedure ebfm_display when the global
variable DISPLAY_ALL is set to 1.
Arguments
bar_table Address of the endpoint bar_table structure in BFM shared memory
allowed_bars One hot 6 bits BAR selection
min_log2_size Number of bit required for the specified address space
sel_bar BAR number to use
Table 15–69. find_mem_bar Procedure
Table 15–70. dma_set_rclast Procedure
Location altpcietb_bfm_driver_chaining.v
Syntax Dma_set_rclast(bar_table, setup_bar, dt_direction, dt_rclast)
Arguments
bar_table Address of the endpoint bar_table structure in BFM shared memory
setup_bar BAR number to use
dt_direction When 0 read, When 1 write
dt_rclast Last descriptor number
Table 15–71. ebfm_display_verb Procedure
Location altpcietb_bfm_driver_chaining.v
Syntax ebfm_display_verb(msg_type, message)
Arguments
msg_type
Message type for the message. Should be one of the constants
defined in Table 15–39 on page 15–44 .
message
In VHDL, this argument is VHDL type string and contains the message text to
be displayed. In Verilog HDL, the message string is limited to a maximum of 100
characters. Also, because Verilog HDL does not allow variable length strings, this
routine strips off leading characters of 8'h00 before displaying the message.