Convert the Datapath I/O documentation to .rst format
and move to the Documation/networking/dpaa2 directory
Signed-off-by: Roy Pledge <roy.pledge@xxxxxxx>
---
.../networking/dpaa2/dpio-driver.rst | 29 +++++++++++++++++++---
Documentation/networking/dpaa2/index.rst | 1 +
2 files changed, 27 insertions(+), 3 deletions(-)
rename drivers/soc/fsl/dpio/dpio-driver.txt => Documentation/networking/dpaa2/dpio-driver.rst (95%)
diff --git a/drivers/soc/fsl/dpio/dpio-driver.txt b/Documentation/networking/dpaa2/dpio-driver.rst
similarity index 95%
rename from drivers/soc/fsl/dpio/dpio-driver.txt
rename to Documentation/networking/dpaa2/dpio-driver.rst
index 72ba9da..1358810 100644
--- a/drivers/soc/fsl/dpio/dpio-driver.txt
+++ b/Documentation/networking/dpaa2/dpio-driver.rst
@@ -1,7 +1,15 @@
-Copyright 2016 NXP
+.. include:: <isonum.txt>
+
+DPAA2 DPIO (Data Path I/O) Overview
+===================================
+
+:Copyright: |copy| 2016-2018 NXP
+
+This document provides an overview of the Freescale DPAA2 DPIO
+drivers
Introduction
-------------
+============
A DPAA2 DPIO (Data Path I/O) is a hardware object that provides
interfaces to enqueue and dequeue frames to/from network interfaces
@@ -27,8 +35,11 @@ provides services that:
The Linux DPIO driver consists of 3 primary components--
DPIO object driver-- fsl-mc driver that manages the DPIO object
+
DPIO service-- provides APIs to other Linux drivers for services
+
QBman portal interface-- sends portal commands, gets responses
+::
fsl-mc other
bus drivers
@@ -45,8 +56,9 @@ The Linux DPIO driver consists of 3 primary components--
|
hardware
+
The diagram below shows how the DPIO driver components fit with the other
-DPAA2 Linux driver components:
+DPAA2 Linux driver components::
+------------+
| OS Network |
| Stack |
@@ -98,20 +110,29 @@ DPIO service (dpio-service.c, dpaa2-io.h)
Notification handling
dpaa2_io_service_register()
+
dpaa2_io_service_deregister()
+
dpaa2_io_service_rearm()
Queuing
dpaa2_io_service_pull_fq()
+
dpaa2_io_service_pull_channel()
+
dpaa2_io_service_enqueue_fq()
+
dpaa2_io_service_enqueue_qd()
+
dpaa2_io_store_create()
+
dpaa2_io_store_destroy()
+
dpaa2_io_store_next()
Buffer pool management
dpaa2_io_service_release()
+
dpaa2_io_service_acquire()
QBman portal interface (qbman-portal.c)
@@ -120,7 +141,9 @@ QBman portal interface (qbman-portal.c)
The qbman-portal component provides APIs to do the low level hardware
bit twiddling for operations such as:
-initializing Qman software portals
+
-building and sending portal commands
+
-portal interrupt configuration and processing
The qbman-portal APIs are not public to other drivers, and are
diff --git a/Documentation/networking/dpaa2/index.rst b/Documentation/networking/dpaa2/index.rst
index 4c6586c..10bea11 100644
--- a/Documentation/networking/dpaa2/index.rst
+++ b/Documentation/networking/dpaa2/index.rst
@@ -6,3 +6,4 @@ DPAA2 Documentation
:maxdepth: 1
overview
+ dpio-driver
--
2.7.4
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