On Tue, Jul 06, 2021 at 02:28:28PM -0300, Jason Gunthorpe wrote: > > Also on your claim that drivers/gpu is a non-upstream disaster: I've > > also learned that that for drivers/rdma there's the upstream driver, > > and then there's the out-of-tree hackjob the vendor actually > > supports. > > In the enterprise world everyone has their out of tree backport > drivers. It varies on the vendor how much deviation there is from the > upstream driver and what commercial support relationship the vendor > has with the enterprise distros. I think he means the Mellanox OFED stack, which is a complete and utter mess and which gets force fed by Mellanox/Nvidia on unsuspecting customers. I know many big HPC sites that ignore it, but a lot of enterprise customers are dumb enought to deploy it.