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Chapter 15: Testbench and Design Example 15–53
BFM Procedures and Functions
August 2014 Altera Corporation IP Compiler for PCI Express User Guide
rc_mempoll Procedure
Use the
rc_mempoll
procedure to poll a given DWORD in a given BFM shared
memory location.
msi_poll Procedure
The
msi_poll
procedure tracks MSI completion from the endpoint.
Arguments
bar_table
Address of the endpoint
bar_table
structure in BFM shared memory.
bar_num
BAR number to analyze.
Descriptor_size
Number of descriptor.
direction
When 0 the direction is read.
When 1 the direction is write.
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.
Bdt_msb
BFM shared memory upper address value.
Bdt_lsb
BFM shared memory lower address value.
Msi_number
When
use_msi
is set, specifies the number of the MSI which is set by the
dma_set_msi
procedure.
Msi_traffic_class
When
use_msi
is set, specifies the MSI traffic class which is set by the
dma_set_msi
procedure.
Multi_message_enable
When
use_msi
is set, specifies the MSI traffic class which is set by the
dma_set_msi
procedure.
Table 15–65.
dma_set_header Procedure
Table 15–66. rc_mempoll Procedure
Location altpcietb_bfm_driver_chaining.v or altpcietb_bfm_driver_chaining.vhd
Syntax
rc_mempoll (rc_addr, rc_data, rc_mask)
Arguments
rc_addr
Address of the BFM shared memory that is being polled.
rc_data
Expected data value of the that is being polled.
r
c_mask
Mask that is logically
AND
ed with the shared memory data before it is
compared with
rc_data
.
Table 15–67. msi_poll Procedure
Location altpcietb_bfm_driver_chaining.v or altpcietb_bfm_driver_chaining.vhd
Syntax
msi_poll(max_number_of_msi,msi_address,msi_expected_dmawr,msi_expected_dmard,dma_wri
te,dma_read)
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