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40 lines
1.2 KiB
40 lines
1.2 KiB
# 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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