drivers/dma/Kconfig

   1 #
   2 # DMA engine configuration
   3 #
   4
   5 menuconfig DMADEVICES
   6         bool "DMA Engine support"
   7         depends on (PCI && X86) || ARCH_IOP32X || ARCH_IOP33X || ARCH_IOP13XX
   8         depends on !HIGHMEM64G
   9         help
  10           DMA engines can do asynchronous data transfers without
  11           involving the host CPU.  Currently, this framework can be
  12           used to offload memory copies in the network stack and
  13           RAID operations in the MD driver.
  14
  15 if DMADEVICES
  16
  17 comment "DMA Devices"
  18
  19 config INTEL_IOATDMA
  20         tristate "Intel I/OAT DMA support"
  21         depends on PCI && X86
  22         select DMA_ENGINE
  23         select DCA
  24         help
  25           Enable support for the Intel(R) I/OAT DMA engine present
  26           in recent Intel Xeon chipsets.
  27
  28           Say Y here if you have such a chipset.
  29
  30           If unsure, say N.
  31
  32 config INTEL_IOP_ADMA
  33         tristate "Intel IOP ADMA support"
  34         depends on ARCH_IOP32X || ARCH_IOP33X || ARCH_IOP13XX
  35         select ASYNC_CORE
  36         select DMA_ENGINE
  37         help
  38           Enable support for the Intel(R) IOP Series RAID engines.
  39
  40 config DMA_ENGINE
  41         bool
  42
  43 comment "DMA Clients"
  44         depends on DMA_ENGINE
  45
  46 config NET_DMA
  47         bool "Network: TCP receive copy offload"
  48         depends on DMA_ENGINE && NET
  49         help
  50           This enables the use of DMA engines in the network stack to
  51           offload receive copy-to-user operations, freeing CPU cycles.
  52           Since this is the main user of the DMA engine, it should be enabled;
  53           say Y here.
  54
  55 endif