diff options
Diffstat (limited to 'Documentation/ABI/stable/sysfs-driver-dma-idxd')
| -rw-r--r-- | Documentation/ABI/stable/sysfs-driver-dma-idxd | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/Documentation/ABI/stable/sysfs-driver-dma-idxd b/Documentation/ABI/stable/sysfs-driver-dma-idxd index 8e2c2c405db2..3becc9a82bdf 100644 --- a/Documentation/ABI/stable/sysfs-driver-dma-idxd +++ b/Documentation/ABI/stable/sysfs-driver-dma-idxd @@ -22,6 +22,7 @@ Date: Oct 25, 2019 KernelVersion: 5.6.0 Contact: dmaengine@vger.kernel.org Description: The largest number of work descriptors in a batch. + It's not visible when the device does not support batch. What: /sys/bus/dsa/devices/dsa<m>/max_work_queues_size Date: Oct 25, 2019 @@ -49,6 +50,8 @@ 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. + It's not visible when the device does not support Read Buffer + allocation control. What: /sys/bus/dsa/devices/dsa<m>/max_transfer_size Date: Oct 25, 2019 @@ -122,6 +125,8 @@ 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. + It's not visible when the device does not support Read Buffer + allocation control. What: /sys/bus/dsa/devices/dsa<m>/cmd_status Date: Aug 28, 2020 @@ -205,6 +210,7 @@ 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. + It's not visible when the device does not support batch. What: /sys/bus/dsa/devices/wq<m>.<n>/ats_disable Date: Nov 13, 2020 @@ -250,6 +256,8 @@ 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. + It's not visible when the device does not support Read Buffer + allocation control. What: /sys/bus/dsa/devices/group<m>.<n>/read_buffers_allowed Date: Dec 10, 2021 @@ -258,6 +266,8 @@ 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. + It's not visible when the device does not support Read Buffer + allocation control. What: /sys/bus/dsa/devices/group<m>.<n>/read_buffers_reserved Date: Dec 10, 2021 @@ -266,6 +276,8 @@ 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. + It's not visible when the device does not support Read Buffer + allocation control. What: /sys/bus/dsa/devices/group<m>.<n>/desc_progress_limit Date: Sept 14, 2022 |