Re: [PATCH v2 07/10] nvme-pci: Use PCI p2pmem subsystem to manage the CMB

Logan Gunthorpe
2018-03-05T20:16:52Z

On 05/03/18 01:10 PM, Jason Gunthorpe wrote:
> So when reading the above mlx code, we see the first wmb() being used
> to ensure that CPU stores to cachable memory are visible to the DMA
> triggered by the doorbell ring.

Oh, yes, that makes sense. Disregard my previous email as I was wrong.

Logan