dmaengine: idxd: Add ABI documentation for shared wq

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

Signed-off-by: Jing Lin <jing.lin@intel.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Link: https://lore.kernel.org/r/160382008649.3911367.10851752182908509837.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/Documentation/ABI/stable/sysfs-driver-dma-idxd b/Documentation/ABI/stable/sysfs-driver-dma-idxd
index b441838..5ea81ff 100644 (file)
--- a/Documentation/ABI/stable/sysfs-driver-dma-idxd
+++ b/Documentation/ABI/stable/sysfs-driver-dma-idxd
@@ -77,6 +77,13 @@ 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
@@ -122,6 +129,13 @@ KernelVersion:     5.10.0
 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