[mirror_ubuntu-focal-kernel.git] / drivers / dma / Kconfig

#
# DMA engine configuration
#

menuconfig DMADEVICES
	bool "DMA Engine support"
	depends on (PCI && X86) || ARCH_IOP32X || ARCH_IOP33X || ARCH_IOP13XX
	depends on !HIGHMEM64G
	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
Commit	Line	Data
c13c8260 CL	1	#
	2	# DMA engine configuration
	3	#
	4
2ed6dc34	5	menuconfig DMADEVICES
6d4f5879	6	bool "DMA Engine support"
2ed6dc34	7	depends on (PCI && X86) \|\| ARCH_IOP32X \|\| ARCH_IOP33X \|\| ARCH_IOP13XX
0036731c	8	depends on !HIGHMEM64G
2ed6dc34	9	help
6d4f5879 HS	10	DMA engines can do asynchronous data transfers without
	11	involving the host CPU. Currently, this framework can be
	12	used to offload memory copies in the network stack and
	13	RAID operations in the MD driver.
2ed6dc34 SN	14
	15	if DMADEVICES
	16
	17	comment "DMA Devices"
	18
	19	config INTEL_IOATDMA
	20	tristate "Intel I/OAT DMA support"
	21	depends on PCI && X86
	22	select DMA_ENGINE
	23	select DCA
	24	help
	25	Enable support for the Intel(R) I/OAT DMA engine present
	26	in recent Intel Xeon chipsets.
	27
	28	Say Y here if you have such a chipset.
	29
	30	If unsure, say N.
	31
	32	config INTEL_IOP_ADMA
	33	tristate "Intel IOP ADMA support"
	34	depends on ARCH_IOP32X \|\| ARCH_IOP33X \|\| ARCH_IOP13XX
	35	select ASYNC_CORE
	36	select DMA_ENGINE
	37	help
	38	Enable support for the Intel(R) IOP Series RAID engines.
c13c8260 CL	39
c13c8260 CL	40	config DMA_ENGINE
2ed6dc34	41	bool
c13c8260	42
db217334	43	comment "DMA Clients"
2ed6dc34	44	depends on DMA_ENGINE
db217334 CL	45
	46	config NET_DMA
	47	bool "Network: TCP receive copy offload"
	48	depends on DMA_ENGINE && NET
2ed6dc34	49	help
db217334 CL	50	This enables the use of DMA engines in the network stack to
	51	offload receive copy-to-user operations, freeing CPU cycles.
	52	Since this is the main user of the DMA engine, it should be enabled;
	53	say Y here.
	54
2ed6dc34	55	endif