Re: [PATCH v2 07/10] nvme-pci: Use PCI p2pmem subsystem to manage the CMB
From: Logan Gunthorpe
Date: Mon Mar 05 2018 - 15:17:03 EST
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