From: Changbin Du <changbin.du@gmail.com>
To: Jonathan Corbet <corbet@lwn.net>
Cc: Bjorn Helgaas <bhelgaas@google.com>,
linux-pci@vger.kernel.org, linux-doc@vger.kernel.org,
linux-kernel@vger.kernel.org, Changbin Du <changbin.du@gmail.com>
Subject: [PATCH 12/12] pci doc: convert PCI/endpoint/pci-test-howto.txt to rst format
Date: Sat, 30 Mar 2019 00:04:13 +0800 [thread overview]
Message-ID: <20190329160413.4293-13-changbin.du@gmail.com> (raw)
In-Reply-To: <20190329160413.4293-1-changbin.du@gmail.com>
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@gmail.com>
---
Documentation/PCI/endpoint/index.rst | 1 +
...{pci-test-howto.txt => pci-test-howto.rst} | 51 +++++++++++++------
2 files changed, 37 insertions(+), 15 deletions(-)
rename Documentation/PCI/endpoint/{pci-test-howto.txt => pci-test-howto.rst} (83%)
diff --git a/Documentation/PCI/endpoint/index.rst b/Documentation/PCI/endpoint/index.rst
index b680a3fc4fec..d114ea74b444 100644
--- a/Documentation/PCI/endpoint/index.rst
+++ b/Documentation/PCI/endpoint/index.rst
@@ -10,3 +10,4 @@ PCI Endpoint Framework
pci-endpoint
pci-endpoint-cfs
pci-test-function
+ pci-test-howto
diff --git a/Documentation/PCI/endpoint/pci-test-howto.txt b/Documentation/PCI/endpoint/pci-test-howto.rst
similarity index 83%
rename from Documentation/PCI/endpoint/pci-test-howto.txt
rename to Documentation/PCI/endpoint/pci-test-howto.rst
index 040479f437a5..a81ae7daafa0 100644
--- a/Documentation/PCI/endpoint/pci-test-howto.txt
+++ b/Documentation/PCI/endpoint/pci-test-howto.rst
@@ -1,38 +1,49 @@
- PCI TEST USERGUIDE
- Kishon Vijay Abraham I <kishon@ti.com>
+.. SPDX-License-Identifier: GPL-2.0
+
+==================
+PCI TEST USERGUIDE
+==================
+
+:Author: Kishon Vijay Abraham I <kishon@ti.com>
This document is a guide to help users use pci-epf-test function driver
and pci_endpoint_test host driver for testing PCI. The list of steps to
be followed in the host side and EP side is given below.
1. Endpoint Device
+==================
1.1 Endpoint Controller Devices
+-------------------------------
-To find the list of endpoint controller devices in the system:
+To find the list of endpoint controller devices in the system::
# ls /sys/class/pci_epc/
51000000.pcie_ep
-If PCI_ENDPOINT_CONFIGFS is enabled
+If PCI_ENDPOINT_CONFIGFS is enabled::
+
# ls /sys/kernel/config/pci_ep/controllers
51000000.pcie_ep
1.2 Endpoint Function Drivers
+-----------------------------
-To find the list of endpoint function drivers in the system:
+To find the list of endpoint function drivers in the system::
# ls /sys/bus/pci-epf/drivers
pci_epf_test
-If PCI_ENDPOINT_CONFIGFS is enabled
+If PCI_ENDPOINT_CONFIGFS is enabled::
+
# ls /sys/kernel/config/pci_ep/functions
pci_epf_test
1.3 Creating pci-epf-test Device
+--------------------------------
PCI endpoint function device can be created using the configfs. To create
-pci-epf-test device, the following commands can be used
+pci-epf-test device, the following commands can be used::
# mount -t configfs none /sys/kernel/config
# cd /sys/kernel/config/pci_ep/
@@ -42,7 +53,7 @@ The "mkdir func1" above creates the pci-epf-test function device that will
be probed by pci_epf_test driver.
The PCI endpoint framework populates the directory with the following
-configurable fields.
+configurable fields::
# ls functions/pci_epf_test/func1
baseclass_code interrupt_pin progif_code subsys_id
@@ -51,7 +62,7 @@ configurable fields.
The PCI endpoint function driver populates these entries with default values
when the device is bound to the driver. The pci-epf-test driver populates
-vendorid with 0xffff and interrupt_pin with 0x0001
+vendorid with 0xffff and interrupt_pin with 0x0001::
# cat functions/pci_epf_test/func1/vendorid
0xffff
@@ -59,10 +70,11 @@ vendorid with 0xffff and interrupt_pin with 0x0001
0x0001
1.4 Configuring pci-epf-test Device
+-----------------------------------
The user can configure the pci-epf-test device using configfs entry. In order
to change the vendorid and the number of MSI interrupts used by the function
-device, the following commands can be used.
+device, the following commands can be used::
# echo 0x104c > functions/pci_epf_test/func1/vendorid
# echo 0xb500 > functions/pci_epf_test/func1/deviceid
@@ -70,10 +82,11 @@ device, the following commands can be used.
# echo 8 > functions/pci_epf_test/func1/msix_interrupts
1.5 Binding pci-epf-test Device to EP Controller
+------------------------------------------------
In order for the endpoint function device to be useful, it has to be bound to
a PCI endpoint controller driver. Use the configfs to bind the function
-device to one of the controller driver present in the system.
+device to one of the controller driver present in the system::
# ln -s functions/pci_epf_test/func1 controllers/51000000.pcie_ep/
@@ -81,30 +94,35 @@ Once the above step is completed, the PCI endpoint is ready to establish a link
with the host.
1.6 Start the Link
+------------------
In order for the endpoint device to establish a link with the host, the _start_
-field should be populated with '1'.
+field should be populated with '1'::
# echo 1 > controllers/51000000.pcie_ep/start
2. RootComplex Device
+=====================
2.1 lspci Output
+----------------
-Note that the devices listed here correspond to the value populated in 1.4 above
+Note that the devices listed here correspond to the value populated in 1.4
+above::
00:00.0 PCI bridge: Texas Instruments Device 8888 (rev 01)
01:00.0 Unassigned class [ff00]: Texas Instruments Device b500
2.2 Using Endpoint Test function Device
+---------------------------------------
pcitest.sh added in tools/pci/ can be used to run all the default PCI endpoint
-tests. To compile this tool the following commands should be used:
+tests. To compile this tool the following commands should be used::
# cd <kernel-dir>
# make -C tools/pci
-or if you desire to compile and install in your system:
+or if you desire to compile and install in your system::
# cd <kernel-dir>
# make -C tools/pci install
@@ -112,6 +130,9 @@ or if you desire to compile and install in your system:
The tool and script will be located in <rootfs>/usr/bin/
2.2.1 pcitest.sh Output
+~~~~~~~~~~~~~~~~~~~~~~~
+::
+
# pcitest.sh
BAR tests
--
2.20.1
next prev parent reply other threads:[~2019-03-29 16:05 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-29 16:04 [PATCH 00/12] Include linux PCI docs into Sphinx TOC tree Changbin Du
2019-03-29 16:04 ` [PATCH 01/12] Documentation: add Linux PCI to " Changbin Du
2019-03-29 16:04 ` [PATCH 02/12] pci doc: convert PCI/pci.txt to rst format Changbin Du
2019-03-29 16:04 ` [PATCH 03/12] pci doc: convert PCI/PCIEBUS-HOWTO.txt " Changbin Du
2019-03-29 16:04 ` [PATCH 04/12] pci doc: convert PCI/pci-iov-howto.txt " Changbin Du
2019-03-29 16:04 ` [PATCH 05/12] pci doc: convert PCI/MSI-HOWTO.txt " Changbin Du
2019-03-30 4:00 ` Matthew Wilcox
2019-03-31 5:18 ` Changbin Du
2019-03-31 15:33 ` Changbin Du
2019-03-29 16:04 ` [PATCH 06/12] pci doc: convert PCI/acpi-info.txt " Changbin Du
2019-03-29 16:04 ` [PATCH 07/12] pci doc: convert PCI/pci-error-recovery.txt " Changbin Du
2019-03-29 16:04 ` [PATCH 08/12] pci doc: convert PCI/pcieaer-howto.txt " Changbin Du
2019-03-29 16:04 ` [PATCH 09/12] pci doc: convert PCI/endpoint/pci-endpoint.txt " Changbin Du
2019-03-29 16:04 ` [PATCH 10/12] pci doc: convert PCI/endpoint/pci-endpoint-cfs.txt " Changbin Du
2019-03-29 16:04 ` [PATCH 11/12] pci doc: convert PCI/endpoint/pci-test-function.txt " Changbin Du
2019-03-29 16:04 ` Changbin Du [this message]
2019-04-01 23:03 ` [PATCH 00/12] Include linux PCI docs into Sphinx TOC tree Bjorn Helgaas
2019-04-02 15:08 ` Changbin Du
2019-04-02 18:07 ` Bjorn Helgaas
2019-04-03 15:39 ` Changbin Du
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190329160413.4293-13-changbin.du@gmail.com \
--to=changbin.du@gmail.com \
--cc=bhelgaas@google.com \
--cc=corbet@lwn.net \
--cc=linux-doc@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pci@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).