Component Type: kbuild config
Description: PCI peer-to-peer transfer support
More info: EnableÑ drivers to do PCI peer-to-peer transactions to and from BARs that are exposed in other devices that are the part of the hierarchy where peer-to-peer DMA is guaranteed by the PCI specification to work (ie. anything below a single PCI bridge). Many PCIe root complexes do not support P2P transactions and it's hard to tell which support it at all, so at this time, P2P DMA transactions must be between devices behind the same root port. If unsure, say N.
Build project: Kconfig (Linux kconfig) (Path: drivers\pci\Kconfig )
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