41 lines
1.2 KiB
Plaintext
41 lines
1.2 KiB
Plaintext
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# SPDX-License-Identifier: GPL-2.0-only
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menuconfig NTB
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tristate "Non-Transparent Bridge support"
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depends on PCI
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help
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The PCI-E Non-transparent bridge hardware is a point-to-point PCI-E bus
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connecting 2 systems. When configured, writes to the device's PCI
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mapped memory will be mirrored to a buffer on the remote system. The
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ntb Linux driver uses this point-to-point communication as a method to
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transfer data from one system to the other.
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If unsure, say N.
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if NTB
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config NTB_MSI
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bool "MSI Interrupt Support"
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depends on PCI_MSI
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help
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Support using MSI interrupt forwarding instead of (or in addition to)
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hardware doorbells. MSI interrupts typically offer lower latency
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than doorbells and more MSI interrupts can be made available to
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clients. However this requires an extra memory window and support
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in the hardware driver for creating the MSI interrupts.
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If unsure, say N.
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source "drivers/ntb/hw/Kconfig"
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source "drivers/ntb/test/Kconfig"
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config NTB_TRANSPORT
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tristate "NTB Transport Client"
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help
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This is a transport driver that enables connected systems to exchange
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messages over the ntb hardware. The transport exposes a queue pair api
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to client drivers.
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If unsure, say N.
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endif # NTB
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