-.. BSD LICENSE
- Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
- All rights reserved.
-
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions
- are met:
-
- * Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
- * Redistributions in binary form must reproduce the above copyright
- notice, this list of conditions and the following disclaimer in
- the documentation and/or other materials provided with the
- distribution.
- * Neither the name of Intel Corporation nor the names of its
- contributors may be used to endorse or promote products derived
- from this software without specific prior written permission.
-
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+.. SPDX-License-Identifier: BSD-3-Clause
+ Copyright(c) 2010-2014 Intel Corporation.
L3 Forwarding with Power Management Sample Application
======================================================
--------
The application demonstrates the use of the Power libraries in the DPDK to implement packet forwarding.
-The initialization and run-time paths are very similar to those of the L3 forwarding sample application
-(see Chapter 10 "L3 Forwarding Sample Application" for more information).
+The initialization and run-time paths are very similar to those of the :doc:`l3_forward`.
The main difference from the L3 Forwarding sample application is that this application introduces power-aware optimization algorithms
by leveraging the Power library to control P-state and C-state of processor based on packet load.
Compiling the Application
-------------------------
-To compile the application:
+To compile the sample application see :doc:`compiling`.
-#. Go to the sample application directory:
-
- .. code-block:: console
-
- export RTE_SDK=/path/to/rte_sdk cd ${RTE_SDK}/examples/l3fwd-power
-
-#. Set the target (a default target is used if not specified). For example:
-
- .. code-block:: console
-
- export RTE_TARGET=x86_64-native-linuxapp-gcc
-
- See the *DPDK Getting Started Guide* for possible RTE_TARGET values.
-
-#. Build the application:
-
- .. code-block:: console
-
- make
+The application is located in the ``l3fwd-power`` sub-directory.
Running the Application
-----------------------
* --no-numa: optional, disables numa awareness
-See Chapter 10 "L3 Forwarding Sample Application" for details.
+See :doc:`l3_forward` for details.
The L3fwd-power example reuses the L3fwd command line options.
Explanation
struct lcore_conf *qconf;
int ret;
unsigned nb_ports;
- uint16_t queueid;
+ uint16_t queueid, portid;
unsigned lcore_id;
uint64_t hz;
uint32_t n_tx_queue, nb_lcores;
- uint8_t portid, nb_rx_queue, queue, socketid;
+ uint8_t nb_rx_queue, queue, socketid;
// ...