AIESW-871: Adding df_bw support(AIESW-6825)

[sandilya-xilinx]

AIESW-871
AIESW-6825
Improvements to df-bw tests

• Added new .elf file to transfer 1GB as xrt-smi expected 1GB trasnfer
• The iterations are reduced to 100
• Initialize output buffer with 0
• ignore the constat which is unnecessary

C:\sandilya_work>xrt-smi validate --advanced -r df-bw --verbose
Verbose: Enabling Verbosity
-------------------------------------------------------------------------
                    DISCLAIMER  (xrt-smi --advanced)
You are running a developer command that may change system configuration.
                Continue only if you understand the risks.
-------------------------------------------------------------------------
Verbose: Setting power mode to `performance`

Validate Device           : [00c6:00:01.1]
    Platform              : NPU Medusa
    Power Mode            : Performance
-------------------------------------------------------------------------------
Test 1 [00c6:00:01.1]     : df-bw
    Description           : Run bandwidth test on data fabric
    Details               : Total duration: 3.9s
                            Average bandwidth per shim DMA: 51.5 GB/s
    Test Status           : [PASSED]
-------------------------------------------------------------------------------
Validation completed

C:\sandilya_work>

[Copilot]

Pull request overview

This PR enhances the df-bw (data fabric bandwidth) test by updating the test configuration and binary to meet xrt-smi validation requirements for 1GB data transfer.

Key Changes:

• Updated test binary (df_bw.elf) to support 1GB data transfer
• Reduced test iterations from 600 to 100 for faster execution
• Added output buffer initialization with zero values

Reviewed changes

Copilot reviewed 3 out of 4 changed files in this pull request and generated 2 comments.

File	Description
recipe_df_bandwidth.json	Removed unnecessary constants array from kernel arguments
profile_df_bandwidth.json	Added ofm buffer initialization and reduced iterations from 600 to 100
df_bw.elf	Updated binary with new oid and increased size from 38544 to 165392 bytes

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[Copilot]

The PR description mentions reducing iterations to 100, but doesn't explain why this value was chosen or how it relates to the 1GB transfer requirement. Consider adding a comment explaining the relationship between iterations, buffer size, and total data transferred.

Suggested change

	"execution" : {
	"execution" : {
	// _comment: With a buffer size of 1GB (1073741824 bytes) and 100 iterations, the total data transferred is 100GB. The number of iterations was chosen to achieve a total transfer of 100GB for bandwidth profiling.

[sandilya-xilinx]

Not sure if we can comment these json files

[Copilot]

The size value 1073741824 is a magic number. Consider adding a comment indicating this is 1GB (102410241024 bytes) to improve readability and match the PR description's reference to '1GB transfer'.

[sandilya-xilinx]

size is 1073741824 because the elf transfers 1GB data thus allocated 1GB buffer