Running into the same issue. Only have 4 NICs in the server.
Get-NetAdapter | select Name,Status
Name Status
storage1-s1p2 Up
storage2-s3p2 Up
vManagement(compute_management) Up
compute1-s1p1 Up
compute2-s3p1 Up
All of the adapters are showing RoCE and RoCEv2 support:
(Get-NetAdapterAdvancedProperty -Name "compute1-s1p1" -RegistryKeyword "*NetworkDirectTechnology").ValidDisplayValues
RoCE
RoCEv2
(Get-NetAdapterAdvancedProperty -Name "compute2-s3p1" -RegistryKeyword "*NetworkDirectTechnology").ValidDisplayValues
RoCE
RoCEv2
Did you get this resolved? Not sure what to look at or remediate?