Kconfig 1.8 KB

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  1. #
  2. # DMA engine configuration
  3. #
  4. menuconfig DMADEVICES
  5. bool "DMA Engine support"
  6. depends on (PCI && X86) || ARCH_IOP32X || ARCH_IOP33X || ARCH_IOP13XX || PPC
  7. depends on !HIGHMEM64G
  8. help
  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.
  13. if DMADEVICES
  14. comment "DMA Devices"
  15. config INTEL_IOATDMA
  16. tristate "Intel I/OAT DMA support"
  17. depends on PCI && X86
  18. select DMA_ENGINE
  19. select DCA
  20. help
  21. Enable support for the Intel(R) I/OAT DMA engine present
  22. in recent Intel Xeon chipsets.
  23. Say Y here if you have such a chipset.
  24. If unsure, say N.
  25. config INTEL_IOP_ADMA
  26. tristate "Intel IOP ADMA support"
  27. depends on ARCH_IOP32X || ARCH_IOP33X || ARCH_IOP13XX
  28. select ASYNC_CORE
  29. select DMA_ENGINE
  30. help
  31. Enable support for the Intel(R) IOP Series RAID engines.
  32. config FSL_DMA
  33. bool "Freescale MPC85xx/MPC83xx DMA support"
  34. depends on PPC
  35. select DMA_ENGINE
  36. ---help---
  37. Enable support for the Freescale DMA engine. Now, it support
  38. MPC8560/40, MPC8555, MPC8548 and MPC8641 processors.
  39. The MPC8349, MPC8360 is also supported.
  40. config FSL_DMA_SELFTEST
  41. bool "Enable the self test for each DMA channel"
  42. depends on FSL_DMA
  43. default y
  44. ---help---
  45. Enable the self test for each DMA channel. A self test will be
  46. performed after the channel probed to ensure the DMA works well.
  47. config DMA_ENGINE
  48. bool
  49. comment "DMA Clients"
  50. depends on DMA_ENGINE
  51. config NET_DMA
  52. bool "Network: TCP receive copy offload"
  53. depends on DMA_ENGINE && NET
  54. help
  55. This enables the use of DMA engines in the network stack to
  56. offload receive copy-to-user operations, freeing CPU cycles.
  57. Since this is the main user of the DMA engine, it should be enabled;
  58. say Y here.
  59. endif