Multi Channel DMA Intel® FPGA IP for PCI Express Design Example User Guide

ID 683517
Date 8/24/2022
Public

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BAS support is enabled on the hardware. Enable the following flag in user/common/include/ifc_libmqdma.h
#define PCIe_SLOT 0 /* 0 – x16, 1 – x8 */

Commands:

To verify the write operation:
./cli/perfq_app/perfq_app -b 0000:01:00.0 -s 512 -e -t --bar=0
Figure 30. BAS Write Operation
To verify the read operation:
./cli/perfq_app/perfq_app -b 0000:01:00.0 -s 512 -e -r --bar=0
Figure 31. BAS Read Operation
To verify the write and read operation:
./cli/perfq_app/perfq_app -b 0000:01:00.0 -s 512 -e -z --bar=0
Figure 32. BAS Write and Read Operation

Performance test:

The below log is collected on Gen3x16 P-Tile:
./cli/perfq_app/perfq_app -b 0000:01:00.0 -s 16384 –-bas_perf -z --bar=0
Figure 33. BAS Write and Read Performance Test
Note: You may not able to proceed with -z option. Please add flag #define IFC_QDMA_INTF_AVST in user/include/mcdma_ip_params.h as a workaround to make it work.