Kconfig 1.2 KB

12345678910111213141516171819202122232425262728293031323334353637383940
  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. If unsure, say N.
  12. if NTB
  13. config NTB_MSI
  14. bool "MSI Interrupt Support"
  15. depends on PCI_MSI
  16. help
  17. Support using MSI interrupt forwarding instead of (or in addition to)
  18. hardware doorbells. MSI interrupts typically offer lower latency
  19. than doorbells and more MSI interrupts can be made available to
  20. clients. However this requires an extra memory window and support
  21. in the hardware driver for creating the MSI interrupts.
  22. If unsure, say N.
  23. source "drivers/ntb/hw/Kconfig"
  24. source "drivers/ntb/test/Kconfig"
  25. config NTB_TRANSPORT
  26. tristate "NTB Transport Client"
  27. help
  28. This is a transport driver that enables connected systems to exchange
  29. messages over the ntb hardware. The transport exposes a queue pair api
  30. to client drivers.
  31. If unsure, say N.
  32. endif # NTB