[v3,3/3] doc: add usage doc for ENETC PMD
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Commit Message
Add enetc usage document to compile and run the
DPDK application on enetc supported platform.
This document introduces the enetc driver, supported
platforms and supported features.
Signed-off-by: Gagandeep Singh <g.singh@nxp.com>
---
MAINTAINERS | 7 ++
doc/guides/nics/enetc.rst | 110 +++++++++++++++++++++++++
doc/guides/nics/features/enetc.ini | 11 +++
doc/guides/nics/index.rst | 1 +
doc/guides/rel_notes/release_18_11.rst | 6 ++
5 files changed, 135 insertions(+)
create mode 100644 doc/guides/nics/enetc.rst
create mode 100644 doc/guides/nics/features/enetc.ini
@@ -643,6 +643,13 @@ F: drivers/net/dpaa2/
F: doc/guides/nics/dpaa2.rst
F: doc/guides/nics/features/dpaa2.ini
+NXP enetc
+M: Gagandeep Singh <g.singh@nxp.com>
+M: Pankaj Chauhan <pankaj.chauhan@nxp.com>
+F: drivers/net/enetc/
+F: doc/guides/nics/enetc.rst
+F: doc/guides/nics/features/enetc.ini
+
QLogic bnx2x
M: Harish Patil <harish.patil@cavium.com>
M: Rasesh Mody <rasesh.mody@cavium.com>
new file mode 100644
@@ -0,0 +1,110 @@
+.. SPDX-License-Identifier: BSD-3-Clause
+ Copyright 2018 NXP
+
+ENETC Poll Mode Driver
+======================
+
+The ENETC NIC PMD (**librte_pmd_enetc**) provides poll mode driver
+support for the inbuilt NIC found in the **NXP LS1028** SoC.
+
+More information can be found at `NXP Official Website
+<https://www.nxp.com/products/processors-and-microcontrollers/arm-based-processors-and-mcus/qoriq-layerscape-arm-processors/qoriq-layerscape-1028a-industrial-applications-processor:LS1028A>`_.
+
+ENETC
+-----
+
+This section provides an overview of the NXP ENETC
+and how it is integrated into the DPDK.
+
+Contents summary
+
+- ENETC overview
+- ENETC features
+- PCI bus driver
+- NIC driver
+- Supported ENETC SoCs
+- Prerequisites
+- Driver compilation and testing
+
+ENETC Overview
+~~~~~~~~~~~~~~
+
+ENETC is a PCI Integrated End Point(IEP). IEP implements
+peripheral devices in an SoC such that software sees them as PCIe device.
+ENETC is an evolution of BDR(Buffer Descriptor Ring) based networking
+IPs.
+
+This infrastructure simplifies adding support for IEP and facilitates in following:
+
+- Device discovery and location
+- Resource requirement discovery and allocation (e.g. interrupt assignment,
+ device register address)
+- Event reporting
+
+ENETC Features
+~~~~~~~~~~~~~~
+
+- Link Status
+- Packet type information
+
+NIC Driver (PMD)
+~~~~~~~~~~~~~~~~
+
+ENETC PMD is traditional DPDK PMD which provides necessary interface between
+RTE framework and ENETC internal drivers.
+
+- Driver registers the device vendor table in PCI subsystem.
+- RTE framework scans the PCI bus for connected devices.
+- This scanning will invoke the probe function of ENETC driver.
+- The probe function will set the basic device registers and also setups BD rings.
+- On packet Rx the respective BD Ring status bit is set which is then used for
+ packet processing.
+- Then Tx is done first followed by Rx.
+
+Supported ENETC SoCs
+~~~~~~~~~~~~~~~~~~~~
+
+- LS1028
+
+Prerequisites
+~~~~~~~~~~~~~
+
+There are three main pre-requisities for executing ENETC PMD on a ENETC
+compatible board:
+
+1. **ARM 64 Tool Chain**
+
+ For example, the `*aarch64* Linaro Toolchain <https://releases.linaro.org/components/toolchain/binaries/7.3-2018.05/aarch64-linux-gnu/gcc-linaro-7.3.1-2018.05-i686_aarch64-linux-gnu.tar.xz>`_.
+
+2. **Linux Kernel**
+
+ It can be obtained from `NXP's Github hosting <https://source.codeaurora.org/external/qoriq/qoriq-components/linux>`_.
+
+3. **Rootfile system**
+
+ Any *aarch64* supporting filesystem can be used. For example,
+ Ubuntu 16.04 LTS (Xenial) or 18.04 (Bionic) userland which can be obtained
+ from `here <http://cdimage.ubuntu.com/ubuntu-base/releases/18.04/release/ubuntu-base-18.04.1-base-arm64.tar.gz>`_.
+
+The following dependencies are not part of DPDK and must be installed
+separately:
+
+- **NXP Linux LSDK**
+
+ NXP Layerscape software development kit (LSDK) includes support for family
+ of QorIQ® ARM-Architecture-based system on chip (SoC) processors
+ and corresponding boards.
+
+ It includes the Linux board support packages (BSPs) for NXP SoCs,
+ a fully operational tool chain, kernel and board specific modules.
+
+ LSDK and related information can be obtained from: `LSDK <https://www.nxp.com/support/developer-resources/run-time-software/linux-software-and-development-tools/layerscape-software-development-kit:LAYERSCAPE-SDK>`_
+
+Driver compilation and testing
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Follow instructions available in the document
+:ref:`compiling and testing a PMD for a NIC <pmd_build_and_test>`
+to launch **testpmd**
+
+To compile in performance mode, please set ``CONFIG_RTE_CACHE_LINE_SIZE=64``
new file mode 100644
@@ -0,0 +1,11 @@
+;
+; Supported features of the 'enetc' network poll mode driver.
+;
+; Refer to default.ini for the full list of available PMD features.
+;
+[Features]
+Packet type parsing = Y
+Link status = Y
+Linux VFIO = Y
+ARMv8 = Y
+Usage doc = Y
@@ -21,6 +21,7 @@ Network Interface Controller Drivers
dpaa2
e1000em
ena
+ enetc
enic
fm10k
i40e
@@ -50,6 +50,11 @@ New Features
* Other libs
* Apps, Examples, Tools (if significative)
+ * **Added NXP ENETC PMD.**
+
+ Added the new enetc driver for NXP enetc platform. See the
+ "ENETC Poll Mode Driver" document for more details on this new driver.
+
This section is a comment. Do not overwrite or remove it.
Also, make sure to start the actual text at the margin.
=========================================================
@@ -156,6 +161,7 @@ The libraries prepended with a plus sign were incremented in this version.
librte_pmd_ixgbe.so.2
librte_pmd_dpaa2_cmdif.so.1
librte_pmd_dpaa2_qdma.so.1
+ + librte_pmd_enetc.so.1
librte_pmd_ring.so.2
librte_pmd_softnic.so.1
librte_pmd_vhost.so.2