Re: [RFC PATCH 0/12] drm/fabric: vendor-neutral topology infrastructure for scale-up accelerator interconnects

[Austin, Alex (DCCG)]

> Modern GPUs and AI accelerators are increasingly connected through scale-up
> fabrics such as AMD xGMI today and emerging UALink systems [4]. Linux lacks
> common, vendor-neutral infrastructure for reporting which accelerators are
> directly connected, through which ports, and in what state.


Sorry for jumping in late to this discussion. We have hardware that uses
UALoE (https://www.amd.com/en/products/rackscale-solutions/helios.html).
The suggestion from Jason is sensible: a new subsystem for fabrics and
reuse ethernet stuff from networking subsystem where possible. We would
like to continue discussing this -  Alejandro and I will be attending
Plumbers virtually.

Thanks,

Alex