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Message-Id: <20190512125009.32079-11-changbin.du@gmail.com>
Date: Sun, 12 May 2019 20:50:07 +0800
From: Changbin Du <changbin.du@...il.com>
To: bhelgaas@...gle.com, corbet@....net
Cc: linux-pci@...r.kernel.org, linux-doc@...r.kernel.org,
linux-kernel@...r.kernel.org, mchehab+samsung@...nel.org,
Changbin Du <changbin.du@...il.com>
Subject: [PATCH v4 10/12] Documentation: PCI: convert endpoint/pci-endpoint-cfs.txt to reST
This converts the plain text documentation to reStructuredText format and
add it to Sphinx TOC tree. No essential content change.
Signed-off-by: Changbin Du <changbin.du@...il.com>
Acked-by: Bjorn Helgaas <bhelgaas@...gle.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@...nel.org>
---
Documentation/PCI/endpoint/index.rst | 1 +
...-endpoint-cfs.txt => pci-endpoint-cfs.rst} | 99 +++++++++++--------
2 files changed, 57 insertions(+), 43 deletions(-)
rename Documentation/PCI/endpoint/{pci-endpoint-cfs.txt => pci-endpoint-cfs.rst} (64%)
diff --git a/Documentation/PCI/endpoint/index.rst b/Documentation/PCI/endpoint/index.rst
index 0db4f2fcd7f0..3951de9f923c 100644
--- a/Documentation/PCI/endpoint/index.rst
+++ b/Documentation/PCI/endpoint/index.rst
@@ -8,3 +8,4 @@ PCI Endpoint Framework
:maxdepth: 2
pci-endpoint
+ pci-endpoint-cfs
diff --git a/Documentation/PCI/endpoint/pci-endpoint-cfs.txt b/Documentation/PCI/endpoint/pci-endpoint-cfs.rst
similarity index 64%
rename from Documentation/PCI/endpoint/pci-endpoint-cfs.txt
rename to Documentation/PCI/endpoint/pci-endpoint-cfs.rst
index d740f29960a4..b6d39cdec56e 100644
--- a/Documentation/PCI/endpoint/pci-endpoint-cfs.txt
+++ b/Documentation/PCI/endpoint/pci-endpoint-cfs.rst
@@ -1,41 +1,51 @@
- CONFIGURING PCI ENDPOINT USING CONFIGFS
- Kishon Vijay Abraham I <kishon@...com>
+.. SPDX-License-Identifier: GPL-2.0
+
+=======================================
+Configuring PCI Endpoint Using CONFIGFS
+=======================================
+
+:Author: Kishon Vijay Abraham I <kishon@...com>
The PCI Endpoint Core exposes configfs entry (pci_ep) to configure the
PCI endpoint function and to bind the endpoint function
with the endpoint controller. (For introducing other mechanisms to
configure the PCI Endpoint Function refer to [1]).
-*) Mounting configfs
+Mounting configfs
+=================
The PCI Endpoint Core layer creates pci_ep directory in the mounted configfs
-directory. configfs can be mounted using the following command.
+directory. configfs can be mounted using the following command::
mount -t configfs none /sys/kernel/config
-*) Directory Structure
+Directory Structure
+===================
The pci_ep configfs has two directories at its root: controllers and
functions. Every EPC device present in the system will have an entry in
the *controllers* directory and and every EPF driver present in the system
will have an entry in the *functions* directory.
+::
-/sys/kernel/config/pci_ep/
- .. controllers/
- .. functions/
+ /sys/kernel/config/pci_ep/
+ .. controllers/
+ .. functions/
-*) Creating EPF Device
+Creating EPF Device
+===================
Every registered EPF driver will be listed in controllers directory. The
entries corresponding to EPF driver will be created by the EPF core.
+::
-/sys/kernel/config/pci_ep/functions/
- .. <EPF Driver1>/
- ... <EPF Device 11>/
- ... <EPF Device 21>/
- .. <EPF Driver2>/
- ... <EPF Device 12>/
- ... <EPF Device 22>/
+ /sys/kernel/config/pci_ep/functions/
+ .. <EPF Driver1>/
+ ... <EPF Device 11>/
+ ... <EPF Device 21>/
+ .. <EPF Driver2>/
+ ... <EPF Device 12>/
+ ... <EPF Device 22>/
In order to create a <EPF device> of the type probed by <EPF Driver>, the
user has to create a directory inside <EPF DriverN>.
@@ -44,34 +54,37 @@ Every <EPF device> directory consists of the following entries that can be
used to configure the standard configuration header of the endpoint function.
(These entries are created by the framework when any new <EPF Device> is
created)
-
- .. <EPF Driver1>/
- ... <EPF Device 11>/
- ... vendorid
- ... deviceid
- ... revid
- ... progif_code
- ... subclass_code
- ... baseclass_code
- ... cache_line_size
- ... subsys_vendor_id
- ... subsys_id
- ... interrupt_pin
-
-*) EPC Device
+::
+
+ .. <EPF Driver1>/
+ ... <EPF Device 11>/
+ ... vendorid
+ ... deviceid
+ ... revid
+ ... progif_code
+ ... subclass_code
+ ... baseclass_code
+ ... cache_line_size
+ ... subsys_vendor_id
+ ... subsys_id
+ ... interrupt_pin
+
+EPC Device
+==========
Every registered EPC device will be listed in controllers directory. The
entries corresponding to EPC device will be created by the EPC core.
-
-/sys/kernel/config/pci_ep/controllers/
- .. <EPC Device1>/
- ... <Symlink EPF Device11>/
- ... <Symlink EPF Device12>/
- ... start
- .. <EPC Device2>/
- ... <Symlink EPF Device21>/
- ... <Symlink EPF Device22>/
- ... start
+::
+
+ /sys/kernel/config/pci_ep/controllers/
+ .. <EPC Device1>/
+ ... <Symlink EPF Device11>/
+ ... <Symlink EPF Device12>/
+ ... start
+ .. <EPC Device2>/
+ ... <Symlink EPF Device21>/
+ ... <Symlink EPF Device22>/
+ ... start
The <EPC Device> directory will have a list of symbolic links to
<EPF Device>. These symbolic links should be created by the user to
@@ -81,7 +94,7 @@ The <EPC Device> directory will also have a *start* field. Once
"1" is written to this field, the endpoint device will be ready to
establish the link with the host. This is usually done after
all the EPF devices are created and linked with the EPC device.
-
+::
| controllers/
| <Directory: EPC name>/
@@ -102,4 +115,4 @@ all the EPF devices are created and linked with the EPC device.
| interrupt_pin
| function
-[1] -> Documentation/PCI/endpoint/pci-endpoint.txt
+[1] :doc:`pci-endpoint`
--
2.20.1
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