drivers/lightnvm/Kconfig

   1 #
   2 # Open-Channel SSD NVM configuration
   3 #
   4
   5 menuconfig NVM
   6         bool "Open-Channel SSD target support"
   7         depends on BLOCK && HAS_DMA && PCI
   8         select BLK_DEV_NVME
   9         help
  10           Say Y here to get to enable Open-channel SSDs.
  11
  12           Open-Channel SSDs implement a set of extension to SSDs, that
  13           exposes direct access to the underlying non-volatile memory.
  14
  15           If you say N, all options in this submenu will be skipped and disabled
  16           only do this if you know what you are doing.
  17
  18 if NVM
  19
  20 config NVM_DEBUG
  21         bool "Open-Channel SSD debugging support"
  22         default n
  23         ---help---
  24         Exposes a debug management interface to create/remove targets at:
  25
  26           /sys/module/lnvm/parameters/configure_debug
  27
  28         It is required to create/remove targets without IOCTLs.
  29
  30 config NVM_RRPC
  31         tristate "Round-robin Hybrid Open-Channel SSD target"
  32         ---help---
  33         Allows an open-channel SSD to be exposed as a block device to the
  34         host. The target is implemented using a linear mapping table and
  35         cost-based garbage collection. It is optimized for 4K IO sizes.
  36
  37 config NVM_PBLK
  38         tristate "Physical Block Device Open-Channel SSD target"
  39         ---help---
  40         Allows an open-channel SSD to be exposed as a block device to the
  41         host. The target assumes the device exposes raw flash and must be
  42         explicitly managed by the host.
  43
  44         Please note the disk format is considered EXPERIMENTAL for now.
  45
  46 endif # NVM