Description: The operation capability bit mask specify the operation types
supported by the this device.
+What: /sys/bus/dsa/devices/dsa<m>/pasid_enabled
+Date: Oct 27, 2020
+KernelVersion: 5.11.0
+Contact: dmaengine@vger.kernel.org
+Description: To indicate if PASID (process address space identifier) is
+ enabled or not for this device.
+
What: /sys/bus/dsa/devices/dsa<m>/state
Date: Oct 25, 2019
KernelVersion: 5.6.0
Contact: dmaengine@vger.kernel.org
Description: The last executed device administrative command's status/error.
+What: /sys/bus/dsa/devices/wq<m>.<n>/block_on_fault
+Date: Oct 27, 2020
+KernelVersion: 5.11.0
+Contact: dmaengine@vger.kernel.org
+Description: To indicate block on fault is allowed or not for the work queue
+ to support on demand paging.
+
What: /sys/bus/dsa/devices/wq<m>.<n>/group_id
Date: Oct 25, 2019
KernelVersion: 5.6.0
Description: The max batch size for this workqueue. Cannot exceed device
max batch size. Configurable parameter.
+What: /sys/bus/dsa/devices/wq<m>.<n>/ats_disable
+Date: Nov 13, 2020
+KernelVersion: 5.11.0
+Contact: dmaengine@vger.kernel.org
+Description: Indicate whether ATS disable is turned on for the workqueue.
+ 0 indicates ATS is on, and 1 indicates ATS is off for the workqueue.
+
What: /sys/bus/dsa/devices/engine<m>.<n>/group_id
Date: Oct 25, 2019
KernelVersion: 5.6.0