-.. 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.
QoS Scheduler Sample Application
================================
The architecture of the QoS scheduler application is shown in the following figure.
-.. _figure_10:
+.. _figure_qos_sched_app_arch:
-**Figure 10. QoS Scheduler Application Architecture**
+.. figure:: img/qos_sched_app_arch.*
-.. image13_png has been renamed
+ QoS Scheduler Application Architecture
-|qos_sched_app_arch|
There are two flavors of the runtime execution for this application,
with two or three threads per each packet flow configuration being used.
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/qos_sched
-
-#. Set the target (a default target is used if not specified). For example:
+The application is located in the ``qos_sched`` sub-directory.
.. note::
This application is intended as a linuxapp only.
- .. code-block:: console
-
- export RTE_TARGET=x86_64-native-linuxapp-gcc
-
-#. Build the application:
-
- .. code-block:: console
-
- make
-
.. note::
To get statistics on the sample app using the command line interface as described in the next section,
.. code-block:: console
- ./qos_sched -c a2 -n 4 -- --pfc "3,2,5,7" --cfg ./profile.cfg
+ ./qos_sched -l 1,5,7 -n 4 -- --pfc "3,2,5,7" --cfg ./profile.cfg
This example uses a single packet flow configuration which creates one RX thread on lcore 5 reading
from port 3 and a worker thread on lcore 7 writing to port 2.
.. code-block:: console
- ./qos_sched -c c6 -n 4 -- --pfc "3,2,2,6,7" --pfc "1,0,2,6,7" --cfg ./profile.cfg
+ ./qos_sched -l 1,2,6,7 -n 4 -- --pfc "3,2,2,6,7" --pfc "1,0,2,6,7" --cfg ./profile.cfg
Note that independent cores for the packet flow configurations for each of the RX, WT and TX thread are also supported,
providing flexibility to balance the work.
-The EAL coremask is constrained to contain the default mastercore 1 and the RX, WT and TX cores only.
+The EAL coremask/corelist is constrained to contain the default mastercore 1 and the RX, WT and TX cores only.
Explanation
-----------
The traffic flows that need to be configured are application dependent.
This application classifies based on the QinQ double VLAN tags and the IP destination address as indicated in the following table.
-.. _table_2:
-
-**Table 2. Entity Types**
-
-+----------------+-------------------------+--------------------------------------------------+----------------------------------+
-| **Level Name** | **Siblings per Parent** | **QoS Functional Description** | **Selected By** |
-| | | | |
-+================+=========================+==================================================+==================================+
-| Port | - | Ethernet port | Physical port |
-| | | | |
-+----------------+-------------------------+--------------------------------------------------+----------------------------------+
-| Subport | Config (8) | Traffic shaped (token bucket) | Outer VLAN tag |
-| | | | |
-+----------------+-------------------------+--------------------------------------------------+----------------------------------+
-| Pipe | Config (4k) | Traffic shaped (token bucket) | Inner VLAN tag |
-| | | | |
-+----------------+-------------------------+--------------------------------------------------+----------------------------------+
-| Traffic Class | 4 | TCs of the same pipe services in strict priority | Destination IP address (0.0.X.0) |
-| | | | |
-+----------------+-------------------------+--------------------------------------------------+----------------------------------+
-| Queue | 4 | Queue of the same TC serviced in WRR | Destination IP address (0.0.0.X) |
-| | | | |
-+----------------+-------------------------+--------------------------------------------------+----------------------------------+
+.. _table_qos_scheduler_1:
+
+.. table:: Entity Types
+
+ +----------------+-------------------------+--------------------------------------------------+----------------------------------+
+ | **Level Name** | **Siblings per Parent** | **QoS Functional Description** | **Selected By** |
+ | | | | |
+ +================+=========================+==================================================+==================================+
+ | Port | - | Ethernet port | Physical port |
+ | | | | |
+ +----------------+-------------------------+--------------------------------------------------+----------------------------------+
+ | Subport | Config (8) | Traffic shaped (token bucket) | Outer VLAN tag |
+ | | | | |
+ +----------------+-------------------------+--------------------------------------------------+----------------------------------+
+ | Pipe | Config (4k) | Traffic shaped (token bucket) | Inner VLAN tag |
+ | | | | |
+ +----------------+-------------------------+--------------------------------------------------+----------------------------------+
+ | Traffic Class | 4 | TCs of the same pipe services in strict priority | Destination IP address (0.0.X.0) |
+ | | | | |
+ +----------------+-------------------------+--------------------------------------------------+----------------------------------+
+ | Queue | 4 | Queue of the same TC serviced in WRR | Destination IP address (0.0.0.X) |
+ | | | | |
+ +----------------+-------------------------+--------------------------------------------------+----------------------------------+
Please refer to the "QoS Scheduler" chapter in the *DPDK Programmer's Guide* for more information about these parameters.
-
-.. |qos_sched_app_arch| image:: img/qos_sched_app_arch.*
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