Re: [PATCH v3 01/11] PCI/P2PDMA: Support peer-to-peer memory

[Dan Williams]

On Wed, Mar 14, 2018 at 12:34 PM, Stephen  Bates <sbates@xxxxxxxxxxxx> wrote:
>> P2P over PCI/PCI-X is quite common in devices like raid controllers.
>
> Hi Dan
>
> Do you mean between PCIe devices below the RAID controller? Isn't it pretty novel to be able to support PCIe EPs below a RAID controller (as opposed to SCSI based devices)?

I'm thinking of the classic I/O offload card where there's an NTB to
an internal PCI bus that has a storage controller and raid offload
engines.