Tvnet_ep_open: PCIe link is not up

Autonomous Machines Jetson & Embedded Systems Jetson AGX Xavier
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1

I’m debugging the PCIe driver based on Jetson 35.1.0 on the xavier.
what I have done is as belows:

  1. change the ODMDATA from 0x9190000 to 0x9191000 of p2972-0000.conf.common file.
  2. flash the system
  3. run these command:

cd /sys/kernel/config/pci_ep/

mkdir functions/pci_epf_tvnet/func1

echo 16 > functions/pci_epf_tvnet/func1/msi_interrupts

ln -s functions/pci_epf_tvnet/func1 controllers/141a0000.pcie_ep/

echo 1 > controllers/141a0000.pcie_ep/start

and I get error:
tvnet_ep_open: PCIe link is not up

I have searched other’s question and found disable NetworkManager can solve this problem, but I still need connect my PC with xavier by netport.If I disable NetworkManager, I will not ping my PC succssfully.
pls help me

My physical connection is:

DINGTALK_IM_2571897231.JPG
DINGTALK_IM_2571897231.JPG1920×2560 370 KB

2

and I don’t know what’s " Ethernet interface over PCIE" mean. Does xavier communicate with PC by netport rather then PCIe?Can xavier be used as a network card?

4

Hi,
Do you plug in the device to Xavier developer kit? Or you have your own carrier board? If you use a carrier board, the device tree has to be modified per hardware design. Also the latest release is 5.1.1. Suggest you use the latest release for development.

5

tks for reply.
I has my own carrier board.
I can’t understand “Also the latest release is 5.1.1”
I just only debug PCIe driver base on 35.1.0 because it’s a base version