Re: [PATCH kernel v4 19/19] vfio_pci: Add NVIDIA GV100GL [Tesla V100 SXM2] subdriver

2018-12-10 Thread Alex Williamson
On Tue, 11 Dec 2018 11:57:20 +1100 Alexey Kardashevskiy wrote: > On 11/12/2018 11:08, Alex Williamson wrote: > > On Fri, 23 Nov 2018 16:53:04 +1100 > > Alexey Kardashevskiy wrote: > > > >> POWER9 Witherspoon machines come with 4 or 6 V100 GPUs which are not > >> pluggable PCIe devices but

Re: [PATCH kernel v4 19/19] vfio_pci: Add NVIDIA GV100GL [Tesla V100 SXM2] subdriver

2018-12-10 Thread Alexey Kardashevskiy
On 11/12/2018 11:08, Alex Williamson wrote: > On Fri, 23 Nov 2018 16:53:04 +1100 > Alexey Kardashevskiy wrote: > >> POWER9 Witherspoon machines come with 4 or 6 V100 GPUs which are not >> pluggable PCIe devices but still have PCIe links which are used >> for config space and MMIO. In addition

Re: [PATCH kernel v4 19/19] vfio_pci: Add NVIDIA GV100GL [Tesla V100 SXM2] subdriver

2018-12-10 Thread Alex Williamson
On Fri, 23 Nov 2018 16:53:04 +1100 Alexey Kardashevskiy wrote: > POWER9 Witherspoon machines come with 4 or 6 V100 GPUs which are not > pluggable PCIe devices but still have PCIe links which are used > for config space and MMIO. In addition to that the GPUs have 6 NVLinks > which are connected

[PATCH kernel v4 19/19] vfio_pci: Add NVIDIA GV100GL [Tesla V100 SXM2] subdriver

2018-11-22 Thread Alexey Kardashevskiy
POWER9 Witherspoon machines come with 4 or 6 V100 GPUs which are not pluggable PCIe devices but still have PCIe links which are used for config space and MMIO. In addition to that the GPUs have 6 NVLinks which are connected to other GPUs and the POWER9 CPU. POWER9 chips have a special unit on a