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ec8f24b7 | 1 | # SPDX-License-Identifier: GPL-2.0-only |
e26a5843 AH |
2 | menuconfig NTB |
3 | tristate "Non-Transparent Bridge support" | |
4 | depends on PCI | |
5 | help | |
6 | The PCI-E Non-transparent bridge hardware is a point-to-point PCI-E bus | |
7 | connecting 2 systems. When configured, writes to the device's PCI | |
8 | mapped memory will be mirrored to a buffer on the remote system. The | |
9 | ntb Linux driver uses this point-to-point communication as a method to | |
10 | transfer data from one system to the other. | |
fce8a7bb | 11 | |
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12 | If unsure, say N. |
13 | ||
14 | if NTB | |
15 | ||
26b3a37b LG |
16 | config NTB_MSI |
17 | bool "MSI Interrupt Support" | |
18 | depends on PCI_MSI | |
19 | help | |
20 | Support using MSI interrupt forwarding instead of (or in addition to) | |
21 | hardware doorbells. MSI interrupts typically offer lower latency | |
22 | than doorbells and more MSI interrupts can be made available to | |
23 | clients. However this requires an extra memory window and support | |
24 | in the hardware driver for creating the MSI interrupts. | |
25 | ||
26 | If unsure, say N. | |
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27 | source "drivers/ntb/hw/Kconfig" |
28 | ||
963de473 AH |
29 | source "drivers/ntb/test/Kconfig" |
30 | ||
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31 | config NTB_TRANSPORT |
32 | tristate "NTB Transport Client" | |
33 | help | |
34 | This is a transport driver that enables connected systems to exchange | |
35 | messages over the ntb hardware. The transport exposes a queue pair api | |
36 | to client drivers. | |
37 | ||
38 | If unsure, say N. | |
39 | ||
40 | endif # NTB |