mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-21 04:59:04 +07:00
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>
31 lines
1.3 KiB
Plaintext
31 lines
1.3 KiB
Plaintext
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.
|