Kconfig
config NTB
tristate "Intel Non-Transparent Bridge support"
depends on PCI
depends on X86
help
The PCI-E Non-transparent bridge hardware is a point-to-point PCI-E bus
connecting 2 systems. When configured, writes to the device's PCI
mapped memory will be mirrored to a buffer on the remote system. The
ntb Linux driver uses this point-to-point communication as a method to
transfer data from one system to the other.
If unsure, say N.