On Thu, Sep 27, 2018 at 10:54:17AM -0600, Logan Gunthorpe wrote:

For P2P requests, we must use the pci_p2pmem_map_sg() function
instead of the dma_map_sg functions.

With that, we can then indicate PCI_P2P support in the request queue.
For this, we create an NVME_F_PCI_P2P flag which tells the core to
set QUEUE_FLAG_PCI_P2P in the request queue.

Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Christoph Hellwig <hch@lst.de>

Looks good to me as well.

Reviewed-by: Keith Busch <redacted>