Altera Arria V Hard IP for PCI Express - Manual (Page 270)

17–48 Chapter 17: Testbench and Design Example
BFM Procedures and Functions
Arria V Hard IP for PCI Express December 2013 Altera Corporation
User Guide
find_mem_bar Procedure
The find_mem_bar procedure locates a BAR which satisfies a given memory space
requirement.
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.
Table 17–64. find_mem_bar Procedure
Location altpcietb_bfm_driver_rp.v
Syntax Find_mem_bar(bar_table,allowed_bars,min_log2_size, sel_bar)
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 17–65. dma_set_rclast Procedure
Location altpcietb_bfm_driver_rp.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 17–66. 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 17–36 on page 17–38 .
message
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.