258 lines
9.3 KiB
Plaintext
258 lines
9.3 KiB
Plaintext
What: /sys/bus/dsa/devices/dsa<m>/version
|
|
Date: Apr 15, 2020
|
|
KernelVersion: 5.8.0
|
|
Contact: dmaengine@vger.kernel.org
|
|
Description: The hardware version number.
|
|
|
|
What: /sys/bus/dsa/devices/dsa<m>/cdev_major
|
|
Date: Oct 25, 2019
|
|
KernelVersion: 5.6.0
|
|
Contact: dmaengine@vger.kernel.org
|
|
Description: The major number that the character device driver assigned to
|
|
this device.
|
|
|
|
What: /sys/bus/dsa/devices/dsa<m>/errors
|
|
Date: Oct 25, 2019
|
|
KernelVersion: 5.6.0
|
|
Contact: dmaengine@vger.kernel.org
|
|
Description: The error information for this device.
|
|
|
|
What: /sys/bus/dsa/devices/dsa<m>/max_batch_size
|
|
Date: Oct 25, 2019
|
|
KernelVersion: 5.6.0
|
|
Contact: dmaengine@vger.kernel.org
|
|
Description: The largest number of work descriptors in a batch.
|
|
|
|
What: /sys/bus/dsa/devices/dsa<m>/max_work_queues_size
|
|
Date: Oct 25, 2019
|
|
KernelVersion: 5.6.0
|
|
Contact: dmaengine@vger.kernel.org
|
|
Description: The maximum work queue size supported by this device.
|
|
|
|
What: /sys/bus/dsa/devices/dsa<m>/max_engines
|
|
Date: Oct 25, 2019
|
|
KernelVersion: 5.6.0
|
|
Contact: dmaengine@vger.kernel.org
|
|
Description: The maximum number of engines supported by this device.
|
|
|
|
What: /sys/bus/dsa/devices/dsa<m>/max_groups
|
|
Date: Oct 25, 2019
|
|
KernelVersion: 5.6.0
|
|
Contact: dmaengine@vger.kernel.org
|
|
Description: The maximum number of groups can be created under this device.
|
|
|
|
What: /sys/bus/dsa/devices/dsa<m>/max_read_buffers
|
|
Date: Dec 10, 2021
|
|
KernelVersion: 5.17.0
|
|
Contact: dmaengine@vger.kernel.org
|
|
Description: The total number of read buffers supported by this device.
|
|
The read buffers represent resources within the DSA
|
|
implementation, and these resources are allocated by engines to
|
|
support operations. See DSA spec v1.2 9.2.4 Total Read Buffers.
|
|
|
|
What: /sys/bus/dsa/devices/dsa<m>/max_transfer_size
|
|
Date: Oct 25, 2019
|
|
KernelVersion: 5.6.0
|
|
Contact: dmaengine@vger.kernel.org
|
|
Description: The number of bytes to be read from the source address to
|
|
perform the operation. The maximum transfer size is dependent on
|
|
the workqueue the descriptor was submitted to.
|
|
|
|
What: /sys/bus/dsa/devices/dsa<m>/max_work_queues
|
|
Date: Oct 25, 2019
|
|
KernelVersion: 5.6.0
|
|
Contact: dmaengine@vger.kernel.org
|
|
Description: The maximum work queue number that this device supports.
|
|
|
|
What: /sys/bus/dsa/devices/dsa<m>/numa_node
|
|
Date: Oct 25, 2019
|
|
KernelVersion: 5.6.0
|
|
Contact: dmaengine@vger.kernel.org
|
|
Description: The numa node number for this device.
|
|
|
|
What: /sys/bus/dsa/devices/dsa<m>/op_cap
|
|
Date: Oct 25, 2019
|
|
KernelVersion: 5.6.0
|
|
Contact: dmaengine@vger.kernel.org
|
|
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 state information of this device. It can be either enabled
|
|
or disabled.
|
|
|
|
What: /sys/bus/dsa/devices/dsa<m>/group<m>.<n>
|
|
Date: Oct 25, 2019
|
|
KernelVersion: 5.6.0
|
|
Contact: dmaengine@vger.kernel.org
|
|
Description: The assigned group under this device.
|
|
|
|
What: /sys/bus/dsa/devices/dsa<m>/engine<m>.<n>
|
|
Date: Oct 25, 2019
|
|
KernelVersion: 5.6.0
|
|
Contact: dmaengine@vger.kernel.org
|
|
Description: The assigned engine under this device.
|
|
|
|
What: /sys/bus/dsa/devices/dsa<m>/wq<m>.<n>
|
|
Date: Oct 25, 2019
|
|
KernelVersion: 5.6.0
|
|
Contact: dmaengine@vger.kernel.org
|
|
Description: The assigned work queue under this device.
|
|
|
|
What: /sys/bus/dsa/devices/dsa<m>/configurable
|
|
Date: Oct 25, 2019
|
|
KernelVersion: 5.6.0
|
|
Contact: dmaengine@vger.kernel.org
|
|
Description: To indicate if this device is configurable or not.
|
|
|
|
What: /sys/bus/dsa/devices/dsa<m>/read_buffer_limit
|
|
Date: Dec 10, 2021
|
|
KernelVersion: 5.17.0
|
|
Contact: dmaengine@vger.kernel.org
|
|
Description: The maximum number of read buffers that may be in use at
|
|
one time by operations that access low bandwidth memory in the
|
|
device. See DSA spec v1.2 9.2.8 GENCFG on Global Read Buffer Limit.
|
|
|
|
What: /sys/bus/dsa/devices/dsa<m>/cmd_status
|
|
Date: Aug 28, 2020
|
|
KernelVersion: 5.10.0
|
|
Contact: dmaengine@vger.kernel.org
|
|
Description: The last executed device administrative command's status/error.
|
|
Also last configuration error overloaded.
|
|
Writing to it will clear the status.
|
|
|
|
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
|
|
Contact: dmaengine@vger.kernel.org
|
|
Description: The group id that this work queue belongs to.
|
|
|
|
What: /sys/bus/dsa/devices/wq<m>.<n>/size
|
|
Date: Oct 25, 2019
|
|
KernelVersion: 5.6.0
|
|
Contact: dmaengine@vger.kernel.org
|
|
Description: The work queue size for this work queue.
|
|
|
|
What: /sys/bus/dsa/devices/wq<m>.<n>/type
|
|
Date: Oct 25, 2019
|
|
KernelVersion: 5.6.0
|
|
Contact: dmaengine@vger.kernel.org
|
|
Description: The type of this work queue, it can be "kernel" type for work
|
|
queue usages in the kernel space or "user" type for work queue
|
|
usages by applications in user space.
|
|
|
|
What: /sys/bus/dsa/devices/wq<m>.<n>/cdev_minor
|
|
Date: Oct 25, 2019
|
|
KernelVersion: 5.6.0
|
|
Contact: dmaengine@vger.kernel.org
|
|
Description: The minor number assigned to this work queue by the character
|
|
device driver.
|
|
|
|
What: /sys/bus/dsa/devices/wq<m>.<n>/mode
|
|
Date: Oct 25, 2019
|
|
KernelVersion: 5.6.0
|
|
Contact: dmaengine@vger.kernel.org
|
|
Description: The work queue mode type for this work queue.
|
|
|
|
What: /sys/bus/dsa/devices/wq<m>.<n>/priority
|
|
Date: Oct 25, 2019
|
|
KernelVersion: 5.6.0
|
|
Contact: dmaengine@vger.kernel.org
|
|
Description: The priority value of this work queue, it is a value relative to
|
|
other work queue in the same group to control quality of service
|
|
for dispatching work from multiple workqueues in the same group.
|
|
|
|
What: /sys/bus/dsa/devices/wq<m>.<n>/state
|
|
Date: Oct 25, 2019
|
|
KernelVersion: 5.6.0
|
|
Contact: dmaengine@vger.kernel.org
|
|
Description: The current state of the work queue.
|
|
|
|
What: /sys/bus/dsa/devices/wq<m>.<n>/threshold
|
|
Date: Oct 25, 2019
|
|
KernelVersion: 5.6.0
|
|
Contact: dmaengine@vger.kernel.org
|
|
Description: The number of entries in this work queue that may be filled
|
|
via a limited portal.
|
|
|
|
What: /sys/bus/dsa/devices/wq<m>.<n>/max_transfer_size
|
|
Date: Aug 28, 2020
|
|
KernelVersion: 5.10.0
|
|
Contact: dmaengine@vger.kernel.org
|
|
Description: The max transfer sized for this workqueue. Cannot exceed device
|
|
max transfer size. Configurable parameter.
|
|
|
|
What: /sys/bus/dsa/devices/wq<m>.<n>/max_batch_size
|
|
Date: Aug 28, 2020
|
|
KernelVersion: 5.10.0
|
|
Contact: dmaengine@vger.kernel.org
|
|
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/wq<m>.<n>/occupancy
|
|
Date May 25, 2021
|
|
KernelVersion: 5.14.0
|
|
Contact: dmaengine@vger.kernel.org
|
|
Description: Show the current number of entries in this WQ if WQ Occupancy
|
|
Support bit WQ capabilities is 1.
|
|
|
|
What: /sys/bus/dsa/devices/wq<m>.<n>/enqcmds_retries
|
|
Date Oct 29, 2021
|
|
KernelVersion: 5.17.0
|
|
Contact: dmaengine@vger.kernel.org
|
|
Description: Indicate the number of retires for an enqcmds submission on a sharedwq.
|
|
A max value to set attribute is capped at 64.
|
|
|
|
What: /sys/bus/dsa/devices/engine<m>.<n>/group_id
|
|
Date: Oct 25, 2019
|
|
KernelVersion: 5.6.0
|
|
Contact: dmaengine@vger.kernel.org
|
|
Description: The group that this engine belongs to.
|
|
|
|
What: /sys/bus/dsa/devices/group<m>.<n>/use_read_buffer_limit
|
|
Date: Dec 10, 2021
|
|
KernelVersion: 5.17.0
|
|
Contact: dmaengine@vger.kernel.org
|
|
Description: Enable the use of global read buffer limit for the group. See DSA
|
|
spec v1.2 9.2.18 GRPCFG Use Global Read Buffer Limit.
|
|
|
|
What: /sys/bus/dsa/devices/group<m>.<n>/read_buffers_allowed
|
|
Date: Dec 10, 2021
|
|
KernelVersion: 5.17.0
|
|
Contact: dmaengine@vger.kernel.org
|
|
Description: Indicates max number of read buffers that may be in use at one time
|
|
by all engines in the group. See DSA spec v1.2 9.2.18 GRPCFG Read
|
|
Buffers Allowed.
|
|
|
|
What: /sys/bus/dsa/devices/group<m>.<n>/read_buffers_reserved
|
|
Date: Dec 10, 2021
|
|
KernelVersion: 5.17.0
|
|
Contact: dmaengine@vger.kernel.org
|
|
Description: Indicates the number of Read Buffers reserved for the use of
|
|
engines in the group. See DSA spec v1.2 9.2.18 GRPCFG Read Buffers
|
|
Reserved.
|