| What: sys/devices/pciXXXX:XX/0000:XX:XX.X/dma/dma<n>chan<n>/quickdata/cap |
| Date: December 3, 2009 |
| KernelVersion: 2.6.32 |
| Contact: dmaengine@vger.kernel.org |
| Description: Capabilities the DMA supports.Currently there are DMA_PQ, DMA_PQ_VAL, |
| DMA_XOR,DMA_XOR_VAL,DMA_INTERRUPT. |
| |
| What: sys/devices/pciXXXX:XX/0000:XX:XX.X/dma/dma<n>chan<n>/quickdata/ring_active |
| Date: December 3, 2009 |
| KernelVersion: 2.6.32 |
| Contact: dmaengine@vger.kernel.org |
| Description: The number of descriptors active in the ring. |
| |
| What: sys/devices/pciXXXX:XX/0000:XX:XX.X/dma/dma<n>chan<n>/quickdata/ring_size |
| Date: December 3, 2009 |
| KernelVersion: 2.6.32 |
| Contact: dmaengine@vger.kernel.org |
| Description: Descriptor ring size, total number of descriptors available. |
| |
| What: sys/devices/pciXXXX:XX/0000:XX:XX.X/dma/dma<n>chan<n>/quickdata/version |
| Date: December 3, 2009 |
| KernelVersion: 2.6.32 |
| Contact: dmaengine@vger.kernel.org |
| Description: Version of ioatdma device. |
| |
| What: sys/devices/pciXXXX:XX/0000:XX:XX.X/dma/dma<n>chan<n>/quickdata/intr_coalesce |
| Date: August 8, 2017 |
| KernelVersion: 4.14 |
| Contact: dmaengine@vger.kernel.org |
| Description: Tune-able interrupt delay value per channel basis. |