linux-kernel - [PATCH v7 5/5] docs: ABI: Add sysfs documentation interface of dw-xdata-pcie driver

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Message-Id: <83d6573cf8bd03a0b3c3497ded6dce3f0b2e2ebd.1616814273.git.gustavo.pimentel@synopsys.com>
Date:   Sat, 27 Mar 2021 04:06:55 +0100
From:   Gustavo Pimentel <Gustavo.Pimentel@...opsys.com>
To:     linux-doc@...r.kernel.org, linux-pci@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Derek Kiernan <derek.kiernan@...inx.com>,
        Dragan Cvetic <dragan.cvetic@...inx.com>,
        Arnd Bergmann <arnd@...db.de>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jonathan Corbet <corbet@....net>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Krzysztof Wilczyński <kw@...ux.com>
Cc:     Gustavo Pimentel <Gustavo.Pimentel@...opsys.com>
Subject: [PATCH v7 5/5] docs: ABI: Add sysfs documentation interface of dw-xdata-pcie driver

This patch describes the sysfs interface implemented on the dw-xdata-pcie
driver.

Signed-off-by: Gustavo Pimentel <gustavo.pimentel@...opsys.com>
---
 Documentation/ABI/testing/sysfs-driver-xdata | 46 ++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 Documentation/ABI/testing/sysfs-driver-xdata

diff --git a/Documentation/ABI/testing/sysfs-driver-xdata b/Documentation/ABI/testing/sysfs-driver-xdata
new file mode 100644
index 00000000..cb3ab7e
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-driver-xdata
@@ -0,0 +1,46 @@
+What:		/sys/class/misc/drivers/dw-xdata-pcie/write
+Date:		April 2021
+KernelVersion:	5.12
+Contact:	Gustavo Pimentel <gustavo.pimentel@...opsys.com>
+Description:	Allows the user to enable the PCIe traffic generator which
+		will create write TLPs frames - from the Root Complex to the
+		Endpoint direction.
+		Usage e.g.
+		 echo 1 > /sys/class/misc/dw-xdata-pcie/write
+
+		The user can read the current PCIe link throughput generated
+		through this generator in MB/s.
+		Usage e.g.
+		 cat /sys/class/misc/dw-xdata-pcie/write
+		 204
+
+		The file is read and write.
+
+What:		/sys/class/misc/dw-xdata-pcie/read
+Date:		April 2021
+KernelVersion:	5.12
+Contact:	Gustavo Pimentel <gustavo.pimentel@...opsys.com>
+Description:	Allows the user to enable the PCIe traffic generator which
+		will create read TLPs frames - from the Endpoint to the Root
+		Complex direction.
+		Usage e.g.
+		 echo 1 > /sys/class/misc/dw-xdata-pcie/read
+
+		The user can read the current PCIe link throughput generated
+		through this generator in MB/s.
+		Usage e.g.
+		 cat /sys/class/misc/dw-xdata-pcie/read
+		 199
+
+		The file is read and write.
+
+What:		/sys/class/misc/dw-xdata-pcie/stop
+Date:		April 2021
+KernelVersion:	5.12
+Contact:	Gustavo Pimentel <gustavo.pimentel@...opsys.com>
+Description:	Allows the user to disable the PCIe traffic generator in all
+		directions.
+		Usage e.g.
+		 echo 1 > /sys/class/misc/dw-xdata-pcie/stop
+
+		The file is write only.
-- 
2.7.4