2 # DMA engine configuration
6 bool "DMA Engine support"
7 depends on (PCI && X86) || ARCH_IOP32X || ARCH_IOP33X || ARCH_IOP13XX
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.
19 tristate "Intel I/OAT DMA support"
24 Enable support for the Intel(R) I/OAT DMA engine present
25 in recent Intel Xeon chipsets.
27 Say Y here if you have such a chipset.
32 tristate "Intel IOP ADMA support"
33 depends on ARCH_IOP32X || ARCH_IOP33X || ARCH_IOP13XX
37 Enable support for the Intel(R) IOP Series RAID engines.
46 bool "Network: TCP receive copy offload"
47 depends on DMA_ENGINE && NET
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;