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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