Problem with ORIN AGX 64G development kit communicating with Xilinx XDMA IP

Robotics & Edge Computing Jetson & Embedded Systems Jetson AGX Orin
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1

Orin is used as pcie root, xdma ip is running on zu7ev soc chip.

PCIe version 3.0 x8

When XDMA transmits data to Orin at full bandwidth, the actual bandwidth is only 2.7 GB/s, which is far from the theoretical bandwidth of 8 GB/s.

Is it necessary to make corresponding modifications to the XDMA driver source code or Orin configuration to improve the transmission bandwidth?

the development kit number is 945-13730-0050-000

the jetson release is as followed:
Software part of jetson-stats 4.2.12 - (c) 2024, Raffaello Bonghi

Model: Jetson AGX Orin Developer Kit - Jetpack 5.1.2 [L4T 35.4.1]

NV Power Mode[3]: MODE_50W

Serial Number: [XXX Show with: jetson_release -s XXX]

Hardware:

  • P-Number: p3701-0005

  • Module: NVIDIA Jetson AGX Orin (64GB ram)

Platform:

  • Distribution: Ubuntu 20.04 focal

  • Release: 5.10.120-tegra

jtop:

  • Version: 4.2.12

  • Service: Active

Libraries:

  • CUDA: 11.4.315

  • cuDNN: 8.6.0.166

  • TensorRT: 8.5.2.2

  • VPI: 2.3.9

  • Vulkan: 1.3.204

  • OpenCV: 4.5.4 - with CUDA: YES

2

the pcie device information is as the following picture:

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6rqfkrnmqyq34qz9qtsn9c7yk_01920×1442 270 KB

3

Hello,

Thanks for visiting the NVIDIA Developer forums! Your topic will be best served in the Jetson category.

I will move this post over for visibility.

Cheers,
Tom

6

Sorry that we don’t have experience with Xilinx XDMA device, suggest to consult with Xilinx first. Thanks

8

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