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2e442003ab
ABI document added to describe all sysfs variables for dma Signed-off-by: Ujjal Singh <ujjal.singh@intel.com> Acked-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
30 lines
1.3 KiB
Text
30 lines
1.3 KiB
Text
What: sys/devices/pciXXXX:XX/0000:XX:XX.X/dma/dma<n>chan<n>/quickdata/cap
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Date: December 3, 2009
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KernelVersion: 2.6.32
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Contact: dmaengine@vger.kernel.org
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Description: Capabilities the DMA supports.Currently there are DMA_PQ, DMA_PQ_VAL,
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DMA_XOR,DMA_XOR_VAL,DMA_INTERRUPT.
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What: sys/devices/pciXXXX:XX/0000:XX:XX.X/dma/dma<n>chan<n>/quickdata/ring_active
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Date: December 3, 2009
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KernelVersion: 2.6.32
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Contact: dmaengine@vger.kernel.org
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Description: The number of descriptors active in the ring.
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What: sys/devices/pciXXXX:XX/0000:XX:XX.X/dma/dma<n>chan<n>/quickdata/ring_size
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Date: December 3, 2009
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KernelVersion: 2.6.32
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Contact: dmaengine@vger.kernel.org
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Description: Descriptor ring size, total number of descriptors available.
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What: sys/devices/pciXXXX:XX/0000:XX:XX.X/dma/dma<n>chan<n>/quickdata/version
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Date: December 3, 2009
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KernelVersion: 2.6.32
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Contact: dmaengine@vger.kernel.org
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Description: Version of ioatdma device.
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What: sys/devices/pciXXXX:XX/0000:XX:XX.X/dma/dma<n>chan<n>/quickdata/intr_coalesce
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Date: August 8, 2017
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KernelVersion: 4.14
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Contact: dmaengine@vger.kernel.org
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Description: Tune-able interrupt delay value per channel basis.
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