diff options
Diffstat (limited to 'drivers/ntb/Kconfig')
| -rw-r--r-- | drivers/ntb/Kconfig | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/drivers/ntb/Kconfig b/drivers/ntb/Kconfig new file mode 100644 index 000000000..df16c755b --- /dev/null +++ b/drivers/ntb/Kconfig @@ -0,0 +1,40 @@ +# 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 |