diff options
Diffstat (limited to 'drivers/dma/Kconfig')
| -rw-r--r-- | drivers/dma/Kconfig | 60 |
1 files changed, 35 insertions, 25 deletions
diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig index 8f670dae53bb..9c91b0fd134f 100644 --- a/drivers/dma/Kconfig +++ b/drivers/dma/Kconfig @@ -2,42 +2,52 @@ # DMA engine configuration # -menu "DMA Engine support" - depends on HAS_DMA +menuconfig DMADEVICES + bool "DMA Offload Engine support" + depends on (PCI && X86) || ARCH_IOP32X || ARCH_IOP33X || ARCH_IOP13XX + help + Intel(R) offload engines enable offloading 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 "Support for DMA engines" - ---help--- - DMA engines offload bulk memory operations from the CPU to dedicated - hardware, allowing the operations to happen asynchronously. + bool comment "DMA Clients" + depends on DMA_ENGINE config NET_DMA bool "Network: TCP receive copy offload" depends on DMA_ENGINE && NET default y - ---help--- + 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. -comment "DMA Devices" - -config INTEL_IOATDMA - tristate "Intel I/OAT DMA support" - depends on DMA_ENGINE && PCI - default m - ---help--- - Enable support for the Intel(R) I/OAT DMA engine. - -config INTEL_IOP_ADMA - tristate "Intel IOP ADMA support" - depends on DMA_ENGINE && (ARCH_IOP32X || ARCH_IOP33X || ARCH_IOP13XX) - select ASYNC_CORE - default m - ---help--- - Enable support for the Intel(R) IOP Series RAID engines. - -endmenu +endif |