linux-kernel - [PATCH v2 2/2] Documentation: Add debugfs for hisi_acc_vfio

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Date:   Wed, 19 Oct 2022 16:10:33 +0800
From:   Longfang Liu <liulongfang@...wei.com>
To:     <alex.williamson@...hat.com>, <jgg@...dia.com>,
        <shameerali.kolothum.thodi@...wei.com>, <john.garry@...wei.com>
CC:     <cohuck@...hat.com>, <linux-kernel@...r.kernel.org>,
        <linuxarm@...neuler.org>, <liulongfang@...wei.com>
Subject: [PATCH v2 2/2] Documentation: Add debugfs for hisi_acc_vfio_pci

Add a debugfs document description file to help users understand
how to use the accelerator live migration driver's debugfs.

Signed-off-by: Longfang Liu <liulongfang@...wei.com>
---
 Documentation/ABI/testing/debugfs-hisi-migration | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 Documentation/ABI/testing/debugfs-hisi-migration

diff --git a/Documentation/ABI/testing/debugfs-hisi-migration b/Documentation/ABI/testing/debugfs-hisi-migration
new file mode 100644
index 000000000000..36f0882c3a52
--- /dev/null
+++ b/Documentation/ABI/testing/debugfs-hisi-migration
@@ -0,0 +1,16 @@
+What:		/sys/kernel/debug/hisi_vfio_acc/<bdf>/state
+Date:		Sep 2022
+Contact:	linux-kernel@...r.kernel.org
+Description:	Cat the status of the live migration of the current VF device.
+		The status of these live migrations includes:
+		Error, RUNNING, STOP, STOP and COPYING, RESUMING.
+
+What:		/sys/kernel/debug/hisi_vfio_acc/<bdf>/debug
+Date:		Sep 2022
+Contact:	linux-kernel@...r.kernel.org
+Description:	This debug file supports "cat" read operations and "echo"
+		write operations. The read debug file operation will return the
+		command description of the write operation. By writing different
+		commands, different test functions can be performed.
+		The specific operation method can be obtained through the
+		"cat debug" command.
-- 
2.24.0