How to use PCIE communicate between two Orins

Hi There

How to use PCIE communicate between two Orin , we bought a special cable which changed TX/RX for commnicaiton, we got the folllowing message

dmesg | grep -i 141a0000

[ 6.506715] tegra194-pcie 141a0000.pcie: Adding to iommu group 11

[ 6.519025] tegra194-pcie 141a0000.pcie: Using GICv2m MSI allocator

[ 6.525513] tegra194-pcie 141a0000.pcie: Failed to get slot regulators: -517

[ 9.467594] tegra194-pcie 141a0000.pcie: Using GICv2m MSI allocator

[ 9.474057] tegra194-pcie 141a0000.pcie: Failed to get slot regulators: -517

[ 9.532174] tegra194-pcie 141a0000.pcie: Using GICv2m MSI allocator

[ 9.648374] tegra194-pcie 141a0000.pcie: host bridge /pcie@141a0000 ranges:

[ 9.655558] tegra194-pcie 141a0000.pcie: IO 0x003a100000…0x003a1fffff → 0x003a100000

[ 9.664245] tegra194-pcie 141a0000.pcie: MEM 0x2b28000000…0x2b2fffffff → 0x0040000000

[ 9.672925] tegra194-pcie 141a0000.pcie: MEM 0x2740000000…0x2b27ffffff → 0x2740000000

[ 10.788771] tegra194-pcie 141a0000.pcie: Phy link never came up

[ 10.794930] tegra194-pcie 141a0000.pcie: PCI host bridge to bus 0005:00

seems we still need some confiration for PICE pins, any suggestion?

Best Regards,

Xinbai