2 # DMA engine configuration
6 bool "DMA Engine support"
7 depends on !HIGHMEM64G && HAS_DMA
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.
21 tristate "Intel I/OAT DMA support"
26 Enable support for the Intel(R) I/OAT DMA engine present
27 in recent Intel Xeon chipsets.
29 Say Y here if you have such a chipset.
34 tristate "Intel IOP ADMA support"
35 depends on ARCH_IOP32X || ARCH_IOP33X || ARCH_IOP13XX
39 Enable support for the Intel(R) IOP Series RAID engines.
42 bool "Freescale MPC85xx/MPC83xx DMA support"
46 Enable support for the Freescale DMA engine. Now, it support
47 MPC8560/40, MPC8555, MPC8548 and MPC8641 processors.
48 The MPC8349, MPC8360 is also supported.
51 bool "Marvell XOR engine support"
56 Enable support for the Marvell XOR engine.
65 bool "Network: TCP receive copy offload"
66 depends on DMA_ENGINE && NET
67 default (INTEL_IOATDMA || FSL_DMA)
69 This enables the use of DMA engines in the network stack to
70 offload receive copy-to-user operations, freeing CPU cycles.
72 Say Y here if you enabled INTEL_IOATDMA or FSL_DMA, otherwise