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Enabling CONFIG_PCIE_TEGRA_DW_DMA_TEST jetson AGX ORIN

Mar 04, 2024

Hi Team,


We are trying to check the performance(bandwidth, latency) of PCIe C5 by DMA read and write test between two AGX Orin Devkit (L4T 35.3.1) by configuring One Jetson AGX Orin as Root Complex and another Jetson AGX Orin as Endpoint.


Is there any other way to perform DMA test to analyze bandwidth, latency and other performance metrics of PCIE port c5 in Jetson ORIN with L4T35.3.1?


NOTE:

Previously, we did the DMA test provided in the (nvidia/drivers/pci/dwc/pcie-tegra.c) in jetpack 4.4 (kernel 4.9) for validating the performance of PCIe between two jetson AGX Xavier devkit and it was worked fine. But it was not available in current L4T.


Thanks in Advance