Re: [PATCH 01/12] pci-p2p: Support peer to peer memory

On Thu, Jan 04, 2018 at 12:01:26PM -0700, Logan Gunthorpe wrote:

Some PCI devices may have memory mapped in a BAR space that's
intended for use in Peer-to-Peer transactions. In order to enable
such transactions the memory must be registered with ZONE_DEVICE pages
so it can be used by DMA interfaces in existing drivers.
...

+ * pci_p2pmem_alloc_sgl - allocate p2p memory in an sgl
+ * @pdev:	the device to allocate memory from
+ * @sgl:	the allocated sgl
+ * @nents:      the number of sgs in the list
+ * @length:     number of bytes to allocate

Your later patches use "SGL" in English text.  If that's the conventional
capitalization, please use it here, too.