Messages in this thread |  | | From | Logan Gunthorpe <> | Date | Mon, 5 Mar 2018 13:16:52 -0700 | Subject | Re: [PATCH v2 07/10] nvme-pci: Use PCI p2pmem subsystem to manage the CMB |
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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
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