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usr
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src
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linux-headers-5.4.0-216-generic
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drivers
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ntb
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Kconfig
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# SPDX-License-Identifier: GPL-2.0-only menuconfig NTB tristate "Non-Transparent Bridge support" depends on PCI 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. if NTB config NTB_MSI bool "MSI Interrupt Support" depends on PCI_MSI help Support using MSI interrupt forwarding instead of (or in addition to) hardware doorbells. MSI interrupts typically offer lower latency than doorbells and more MSI interrupts can be made available to clients. However this requires an extra memory window and support in the hardware driver for creating the MSI interrupts. If unsure, say N. source "drivers/ntb/hw/Kconfig" source "drivers/ntb/test/Kconfig" config NTB_TRANSPORT tristate "NTB Transport Client" help This is a transport driver that enables connected systems to exchange messages over the ntb hardware. The transport exposes a queue pair api to client drivers. If unsure, say N. endif # NTB