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#
# DMA engine configuration
#

menuconfig DMADEVICES
        bool "DMA Engine support"
        depends on (PCI && X86) || ARCH_IOP32X || ARCH_IOP33X || ARCH_IOP13XX  ||OR32
        help
          DMA engines can do asynchronous data transfers without
          involving the host CPU.  Currently, this framework can be
          used to offload memory copies in the network stack and
          RAID operations in the MD driver.

if DMADEVICES

comment "DMA Devices"

config INTEL_IOATDMA
        tristate "Intel I/OAT DMA support"
        depends on PCI && X86
        select DMA_ENGINE
        select DCA
        help
          Enable support for the Intel(R) I/OAT DMA engine present
          in recent Intel Xeon chipsets.

          Say Y here if you have such a chipset.

          If unsure, say N.

config INTEL_IOP_ADMA
        tristate "Intel IOP ADMA support"
        depends on ARCH_IOP32X || ARCH_IOP33X || ARCH_IOP13XX
        select ASYNC_CORE
        select DMA_ENGINE
        help
          Enable support for the Intel(R) IOP Series RAID engines.

config DMA_ENGINE
        bool

comment "DMA Clients"
        depends on DMA_ENGINE

config NET_DMA
        bool "Network: TCP receive copy offload"
        depends on DMA_ENGINE && NET
        help
          This enables the use of DMA engines in the network stack to
          offload receive copy-to-user operations, freeing CPU cycles.
          Since this is the main user of the DMA engine, it should be enabled;
          say Y here.

endif