drivers/ntb/Kconfig

   1 # SPDX-License-Identifier: GPL-2.0-only
   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.
  11
  12          If unsure, say N.
  13
  14 if NTB
  15
  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.
  27 source "drivers/ntb/hw/Kconfig"
  28
  29 source "drivers/ntb/test/Kconfig"
  30
  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