dmaengine: allow dma support for async_tx to be toggled

[safe/jmp/linux-2.6] / drivers / dma / Kconfig

diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
index 48ea59e..3b3c01b 100644 (file)
--- a/drivers/dma/Kconfig
+++ b/drivers/dma/Kconfig
@@ -98,6 +98,17 @@ config NET_DMA
          Say Y here if you enabled INTEL_IOATDMA or FSL_DMA, otherwise
          say N.
 
+config ASYNC_TX_DMA
+       bool "Async_tx: Offload support for the async_tx api"
+       depends on DMA_ENGINE
+       help
+         This allows the async_tx api to take advantage of offload engines for
+         memcpy, memset, xor, and raid6 p+q operations.  If your platform has
+         a dma engine that can perform raid operations and you have enabled
+         MD_RAID456 say Y.
+
+         If unsure, say N.
+
 config DMATEST
        tristate "DMA Test client"
        depends on DMA_ENGINE