[PATCH v2 4/4] Documentation: update debugfs doc for Hisilicon HPRE

[Kai Ye]

Update documentation describing DebugFS for function's QoS limiting.

Signed-off-by: Kai Ye <yekai13@xxxxxxxxxx>
---
 Documentation/ABI/testing/debugfs-hisi-hpre | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/Documentation/ABI/testing/debugfs-hisi-hpre b/Documentation/ABI/testing/debugfs-hisi-hpre
index 68d4dcb1538d..396de7bc735d 100644
--- a/Documentation/ABI/testing/debugfs-hisi-hpre
+++ b/Documentation/ABI/testing/debugfs-hisi-hpre
@@ -27,6 +27,16 @@ Description:	One HPRE controller has one PF and multiple VFs, each function
 		has a QM. Select the QM which below qm refers to.
 		Only available for PF.
 
+What:		/sys/kernel/debug/hisi_hpre/<bdf>/alg_qos
+Date:		Jun 2021
+Contact:	linux-crypto@xxxxxxxxxxxxxxx
+Description:	The <bdf> is related the function for PF and VF.
+		HPRE driver supports to configure each function's QoS, the driver
+		supports to write <bdf> value to alg_qos in the host. Such as
+		"echo <bdf> value > alg_qos". The qos value is 1~1000, means
+		1/1000~1000/1000 of total QoS. The driver reading alg_qos to
+		get related QoS in the host and VM, Such as "cat alg_qos".
+
 What:		/sys/kernel/debug/hisi_hpre/<bdf>/regs
 Date:		Sep 2019
 Contact:	linux-crypto@xxxxxxxxxxxxxxx
-- 
2.33.0