1# 2# DMA engine configuration 3# 4 5menuconfig DMADEVICES 6 bool "DMA Engine support" 7 depends on !HIGHMEM64G && HAS_DMA 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. This menu only presents 13 DMA Device drivers supported by the configured arch, it may 14 be empty in some cases. 15 16if DMADEVICES 17 18comment "DMA Devices" 19 20config INTEL_IOATDMA 21 tristate "Intel I/OAT DMA support" 22 depends on PCI && X86 23 select DMA_ENGINE 24 select DCA 25 help 26 Enable support for the Intel(R) I/OAT DMA engine present 27 in recent Intel Xeon chipsets. 28 29 Say Y here if you have such a chipset. 30 31 If unsure, say N. 32 33config INTEL_IOP_ADMA 34 tristate "Intel IOP ADMA support" 35 depends on ARCH_IOP32X || ARCH_IOP33X || ARCH_IOP13XX 36 select ASYNC_CORE 37 select DMA_ENGINE 38 help 39 Enable support for the Intel(R) IOP Series RAID engines. 40 41config DW_DMAC 42 tristate "Synopsys DesignWare AHB DMA support" 43 depends on AVR32 44 select DMA_ENGINE 45 default y if CPU_AT32AP7000 46 help 47 Support the Synopsys DesignWare AHB DMA controller. This 48 can be integrated in chips such as the Atmel AT32ap7000. 49 50config FSL_DMA 51 tristate "Freescale Elo and Elo Plus DMA support" 52 depends on FSL_SOC 53 select DMA_ENGINE 54 ---help--- 55 Enable support for the Freescale Elo and Elo Plus DMA controllers. 56 The Elo is the DMA controller on some 82xx and 83xx parts, and the 57 Elo Plus is the DMA controller on 85xx and 86xx parts. 58 59config MV_XOR 60 bool "Marvell XOR engine support" 61 depends on PLAT_ORION 62 select ASYNC_CORE 63 select DMA_ENGINE 64 ---help--- 65 Enable support for the Marvell XOR engine. 66 67config DMA_ENGINE 68 bool 69 70comment "DMA Clients" 71 depends on DMA_ENGINE 72 73config NET_DMA 74 bool "Network: TCP receive copy offload" 75 depends on DMA_ENGINE && NET 76 default (INTEL_IOATDMA || FSL_DMA) 77 help 78 This enables the use of DMA engines in the network stack to 79 offload receive copy-to-user operations, freeing CPU cycles. 80 81 Say Y here if you enabled INTEL_IOATDMA or FSL_DMA, otherwise 82 say N. 83 84config DMATEST 85 tristate "DMA Test client" 86 depends on DMA_ENGINE 87 help 88 Simple DMA test client. Say N unless you're debugging a 89 DMA Device driver. 90 91endif 92