0001 What: /sys/devices/pciXXXX:XX/0000:XX:XX.X/dma/dma<n>chan<n>/quickdata/cap
0002 Date: December 3, 2009
0003 KernelVersion: 2.6.32
0004 Contact: dmaengine@vger.kernel.org
0005 Description: Capabilities the DMA supports.Currently there are DMA_PQ, DMA_PQ_VAL,
0006 DMA_XOR,DMA_XOR_VAL,DMA_INTERRUPT.
0007
0008 What: /sys/devices/pciXXXX:XX/0000:XX:XX.X/dma/dma<n>chan<n>/quickdata/ring_active
0009 Date: December 3, 2009
0010 KernelVersion: 2.6.32
0011 Contact: dmaengine@vger.kernel.org
0012 Description: The number of descriptors active in the ring.
0013
0014 What: /sys/devices/pciXXXX:XX/0000:XX:XX.X/dma/dma<n>chan<n>/quickdata/ring_size
0015 Date: December 3, 2009
0016 KernelVersion: 2.6.32
0017 Contact: dmaengine@vger.kernel.org
0018 Description: Descriptor ring size, total number of descriptors available.
0019
0020 What: /sys/devices/pciXXXX:XX/0000:XX:XX.X/dma/dma<n>chan<n>/quickdata/version
0021 Date: December 3, 2009
0022 KernelVersion: 2.6.32
0023 Contact: dmaengine@vger.kernel.org
0024 Description: Version of ioatdma device.
0025
0026 What: /sys/devices/pciXXXX:XX/0000:XX:XX.X/dma/dma<n>chan<n>/quickdata/intr_coalesce
0027 Date: August 8, 2017
0028 KernelVersion: 4.14
0029 Contact: dmaengine@vger.kernel.org
0030 Description: Tune-able interrupt delay value per channel basis.
