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