nvme-pci: Add support for P2P memory in requests
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> Signed-off-by:
Bjorn Helgaas <bhelgaas@google.com> Reviewed-by:
Sagi Grimberg <sagi@grimberg.me> Reviewed-by:
Christoph Hellwig <hch@lst.de> Reviewed-by:
Keith Busch <keith.busch@intel.com>
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