Chris Leech | c13c826 | 2006-05-23 17:18:44 -0700 | [diff] [blame] | 1 | # |
| 2 | # DMA engine configuration |
| 3 | # |
| 4 | |
Shannon Nelson | 2ed6dc3 | 2007-10-16 01:27:42 -0700 | [diff] [blame] | 5 | menuconfig DMADEVICES |
Haavard Skinnemoen | 6d4f587 | 2007-11-28 16:21:43 -0800 | [diff] [blame] | 6 | bool "DMA Engine support" |
Dan Williams | 9c402f4 | 2008-06-27 01:21:11 -0700 | [diff] [blame] | 7 | depends on !HIGHMEM64G && HAS_DMA |
Shannon Nelson | 2ed6dc3 | 2007-10-16 01:27:42 -0700 | [diff] [blame] | 8 | help |
Haavard Skinnemoen | 6d4f587 | 2007-11-28 16:21:43 -0800 | [diff] [blame] | 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 |
Dan Williams | 9c402f4 | 2008-06-27 01:21:11 -0700 | [diff] [blame] | 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. |
Chris Leech | c13c826 | 2006-05-23 17:18:44 -0700 | [diff] [blame] | 15 | |
Shannon Nelson | 2ed6dc3 | 2007-10-16 01:27:42 -0700 | [diff] [blame] | 16 | if DMADEVICES |
Chris Leech | db21733 | 2006-06-17 21:24:58 -0700 | [diff] [blame] | 17 | |
Chris Leech | 0bbd5f4 | 2006-05-23 17:35:34 -0700 | [diff] [blame] | 18 | comment "DMA Devices" |
| 19 | |
| 20 | config INTEL_IOATDMA |
| 21 | tristate "Intel I/OAT DMA support" |
Shannon Nelson | 2ed6dc3 | 2007-10-16 01:27:42 -0700 | [diff] [blame] | 22 | depends on PCI && X86 |
| 23 | select DMA_ENGINE |
| 24 | select DCA |
| 25 | help |
| 26 | Enable support for the Intel(R) I/OAT DMA engine present |
| 27 | in recent Intel Xeon chipsets. |
| 28 | |
| 29 | Say Y here if you have such a chipset. |
| 30 | |
| 31 | If unsure, say N. |
Dan Williams | c211092 | 2007-01-02 13:52:26 -0700 | [diff] [blame] | 32 | |
| 33 | config INTEL_IOP_ADMA |
Shannon Nelson | 2ed6dc3 | 2007-10-16 01:27:42 -0700 | [diff] [blame] | 34 | tristate "Intel IOP ADMA support" |
| 35 | depends on ARCH_IOP32X || ARCH_IOP33X || ARCH_IOP13XX |
Dan Williams | c211092 | 2007-01-02 13:52:26 -0700 | [diff] [blame] | 36 | select ASYNC_CORE |
Shannon Nelson | 2ed6dc3 | 2007-10-16 01:27:42 -0700 | [diff] [blame] | 37 | select DMA_ENGINE |
| 38 | help |
| 39 | Enable support for the Intel(R) IOP Series RAID engines. |
Dan Williams | c211092 | 2007-01-02 13:52:26 -0700 | [diff] [blame] | 40 | |
Zhang Wei | 173acc7 | 2008-03-01 07:42:48 -0700 | [diff] [blame] | 41 | config FSL_DMA |
| 42 | bool "Freescale MPC85xx/MPC83xx DMA support" |
| 43 | depends on PPC |
| 44 | select DMA_ENGINE |
| 45 | ---help--- |
| 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. |
| 49 | |
Saeed Bishara | ff7b047 | 2008-07-08 11:58:36 -0700 | [diff] [blame^] | 50 | config MV_XOR |
| 51 | bool "Marvell XOR engine support" |
| 52 | depends on PLAT_ORION |
| 53 | select ASYNC_CORE |
| 54 | select DMA_ENGINE |
| 55 | ---help--- |
| 56 | Enable support for the Marvell XOR engine. |
| 57 | |
Shannon Nelson | 2ed6dc3 | 2007-10-16 01:27:42 -0700 | [diff] [blame] | 58 | config DMA_ENGINE |
| 59 | bool |
| 60 | |
| 61 | comment "DMA Clients" |
| 62 | depends on DMA_ENGINE |
| 63 | |
| 64 | config NET_DMA |
| 65 | bool "Network: TCP receive copy offload" |
| 66 | depends on DMA_ENGINE && NET |
Dan Williams | 9c402f4 | 2008-06-27 01:21:11 -0700 | [diff] [blame] | 67 | default (INTEL_IOATDMA || FSL_DMA) |
Shannon Nelson | 2ed6dc3 | 2007-10-16 01:27:42 -0700 | [diff] [blame] | 68 | help |
| 69 | This enables the use of DMA engines in the network stack to |
| 70 | offload receive copy-to-user operations, freeing CPU cycles. |
Dan Williams | 9c402f4 | 2008-06-27 01:21:11 -0700 | [diff] [blame] | 71 | |
| 72 | Say Y here if you enabled INTEL_IOATDMA or FSL_DMA, otherwise |
| 73 | say N. |
Shannon Nelson | 2ed6dc3 | 2007-10-16 01:27:42 -0700 | [diff] [blame] | 74 | |
| 75 | endif |