I’ll say that there seems to be some confusion here what features we are talking about, and I was specifically addressing RDMA capability which is impacted by the host platform, not just the GPU.
NVIDIA is free to design their products in any way they deem suitable, and since their idea of suitable can and does change over time, one should not make assumptions of the sort that “X works on Y, therefore my expectation is that X also works on Z”.
I’d be the first to agree that NVIDIA’s technical marketing collateral leaves too much guess work for end user trying to find out the feature set of a specific SKU. Calling two pages with a mere smattering of information a “data sheet” borders on the comical as far as I am concerned.
Robert Crovella has pointed out that bug reports can be filed by people who are bothered by this. I find it a bit strange on the part of NVIDIA that they make people jump through such hoops. I have never in my engineering life filed a bug report to get technical marketing materials improved. But I am pretty sure Robert Crovella is not the one setting policy. More information in the hand of consumers should not hurt sales, and may actually help sales (whenever there is a choice, I usually go for the products with the smoothest purchasinh process). The next recession may bring a resurgence of more customer-friendly proactive attitudes. Who knows.
As far as Tesla GPUs are concerned, support is through system integrators, and questions on feature sets are best directed to them, as these GPUs are sold as a component of a system, with the system vendor guaranteeing certain properties of the systems they sell. If you acquired Tesla hardware through some other channel (OEM surplus, second hand), I am afraid you will be pretty much on your own support wise. But your hardware costs will be lower :-)