On Mon, 26 Apr 2021 19:19:43 +0100 Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote: > On Fri, Apr 23, 2021 at 04:45:15PM -0500, Shanker R Donthineni wrote: > > > specific platforms (embedded device?), and the failure mode of the SBR. > > These are not plug-in PCIe GPU cards, will exist on upcoming > > server baseboards. Triggering SBR without firmware notification > > Please submit the quirks together with the actual support for the GPUs > in the nouveau driver, as they are completely useless without that. My default assumption would be that this resolves an issue with assigning this device to a userspace or VM driver through vfio-pci, as most in-kernel drivers don't make use of this interface themselves; they often know more device specific ways to re-initialize hardware. This reset path is also trivially accessible through pci-sysfs. I don't expect nouveau would have much use for this even if it did include support for these devices. Thanks, Alex
