Kconfig 2.2 KB

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  1. #
  2. # DMA engine configuration
  3. #
  4. menuconfig DMADEVICES
  5. bool "DMA Engine support"
  6. depends on !HIGHMEM64G && HAS_DMA
  7. help
  8. DMA engines can do asynchronous data transfers without
  9. involving the host CPU. Currently, this framework can be
  10. used to offload memory copies in the network stack and
  11. RAID operations in the MD driver. This menu only presents
  12. DMA Device drivers supported by the configured arch, it may
  13. be empty in some cases.
  14. if DMADEVICES
  15. comment "DMA Devices"
  16. config INTEL_IOATDMA
  17. tristate "Intel I/OAT DMA support"
  18. depends on PCI && X86
  19. select DMA_ENGINE
  20. select DCA
  21. help
  22. Enable support for the Intel(R) I/OAT DMA engine present
  23. in recent Intel Xeon chipsets.
  24. Say Y here if you have such a chipset.
  25. If unsure, say N.
  26. config INTEL_IOP_ADMA
  27. tristate "Intel IOP ADMA support"
  28. depends on ARCH_IOP32X || ARCH_IOP33X || ARCH_IOP13XX
  29. select ASYNC_CORE
  30. select DMA_ENGINE
  31. help
  32. Enable support for the Intel(R) IOP Series RAID engines.
  33. config DW_DMAC
  34. tristate "Synopsys DesignWare AHB DMA support"
  35. depends on AVR32
  36. select DMA_ENGINE
  37. default y if CPU_AT32AP7000
  38. help
  39. Support the Synopsys DesignWare AHB DMA controller. This
  40. can be integrated in chips such as the Atmel AT32ap7000.
  41. config FSL_DMA
  42. tristate "Freescale Elo and Elo Plus DMA support"
  43. depends on FSL_SOC
  44. select DMA_ENGINE
  45. ---help---
  46. Enable support for the Freescale Elo and Elo Plus DMA controllers.
  47. The Elo is the DMA controller on some 82xx and 83xx parts, and the
  48. Elo Plus is the DMA controller on 85xx and 86xx parts.
  49. config MV_XOR
  50. bool "Marvell XOR engine support"
  51. depends on PLAT_ORION
  52. select ASYNC_CORE
  53. select DMA_ENGINE
  54. ---help---
  55. Enable support for the Marvell XOR engine.
  56. config DMA_ENGINE
  57. bool
  58. comment "DMA Clients"
  59. depends on DMA_ENGINE
  60. config NET_DMA
  61. bool "Network: TCP receive copy offload"
  62. depends on DMA_ENGINE && NET
  63. default (INTEL_IOATDMA || FSL_DMA)
  64. help
  65. This enables the use of DMA engines in the network stack to
  66. offload receive copy-to-user operations, freeing CPU cycles.
  67. Say Y here if you enabled INTEL_IOATDMA or FSL_DMA, otherwise
  68. say N.
  69. config DMATEST
  70. tristate "DMA Test client"
  71. depends on DMA_ENGINE
  72. help
  73. Simple DMA test client. Say N unless you're debugging a
  74. DMA Device driver.
  75. endif