projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| c13c8260 CL |
1 | # |
| 2 | # DMA engine configuration | |
| 3 | # | |
| 4 | ||
| 2ed6dc34 | 5 | menuconfig DMADEVICES |
| 6d4f5879 | 6 | bool "DMA Engine support" |
| 2ed6dc34 SN |
7 | depends on (PCI && X86) || ARCH_IOP32X || ARCH_IOP33X || ARCH_IOP13XX |
| 8 | help | |
| 6d4f5879 HS |
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. | |
| 2ed6dc34 SN |
13 | |
| 14 | if DMADEVICES | |
| 15 | ||
| 16 | comment "DMA Devices" | |
| 17 | ||
| 18 | config INTEL_IOATDMA | |
| 19 | tristate "Intel I/OAT DMA support" | |
| 20 | depends on PCI && X86 | |
| 21 | select DMA_ENGINE | |
| 22 | select DCA | |
| 23 | help | |
| 24 | Enable support for the Intel(R) I/OAT DMA engine present | |
| 25 | in recent Intel Xeon chipsets. | |
| 26 | ||
| 27 | Say Y here if you have such a chipset. | |
| 28 | ||
| 29 | If unsure, say N. | |
| 30 | ||
| 31 | config INTEL_IOP_ADMA | |
| 32 | tristate "Intel IOP ADMA support" | |
| 33 | depends on ARCH_IOP32X || ARCH_IOP33X || ARCH_IOP13XX | |
| 34 | select ASYNC_CORE | |
| 35 | select DMA_ENGINE | |
| 36 | help | |
| 37 | Enable support for the Intel(R) IOP Series RAID engines. | |
| c13c8260 CL |
38 | |
| 39 | config DMA_ENGINE | |
| 2ed6dc34 | 40 | bool |
| c13c8260 | 41 | |
| db217334 | 42 | comment "DMA Clients" |
| 2ed6dc34 | 43 | depends on DMA_ENGINE |
| db217334 CL |
44 | |
| 45 | config NET_DMA | |
| 46 | bool "Network: TCP receive copy offload" | |
| 47 | depends on DMA_ENGINE && NET | |
| 2ed6dc34 | 48 | help |
| db217334 CL |
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; | |
| 52 | say Y here. | |
| 53 | ||
| 2ed6dc34 | 54 | endif |