[PATCH v2 9/9] dmaengine: idxd: add ABI documentation for shared wq

From: Dave Jiang
Date: Mon May 18 2020 - 14:54:20 EST


Add the sysfs attribute bits in ABI/stable for shared wq support.

Signed-off-by: Jing Lin <jing.lin@xxxxxxxxx>
Signed-off-by: Dave Jiang <dave.jiang@xxxxxxxxx>
Reviewed-by: Tony Luck <tony.luck@xxxxxxxxx>
Reviewed-by: Dan Williams <dan.j.williams@xxxxxxxxx>
---
Documentation/ABI/stable/sysfs-driver-dma-idxd | 14 ++++++++++++++
1 file changed, 14 insertions(+)

diff --git a/Documentation/ABI/stable/sysfs-driver-dma-idxd b/Documentation/ABI/stable/sysfs-driver-dma-idxd
index 2253bb1550d6..2b8ec961d783 100644
--- a/Documentation/ABI/stable/sysfs-driver-dma-idxd
+++ b/Documentation/ABI/stable/sysfs-driver-dma-idxd
@@ -77,6 +77,13 @@ Contact: dmaengine@xxxxxxxxxxxxxxx
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: May 4, 2020
+KernelVersion: 5.8.0
+Contact: dmaengine@xxxxxxxxxxxxxxx
+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
@@ -116,6 +123,13 @@ Description: The maximum number of bandwidth tokens that may be in use at
one time by operations that access low bandwidth memory in the
device.

+What: /sys/bus/dsa/devices/wq<m>.<n>/block_on_fault
+Date: May 4, 2020
+KernelVersion: 5.8.0
+Contact: dmaengine@xxxxxxxxxxxxxxx
+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