fix ethdev ports enumeration

[dpdk.git] / doc / guides / sample_app_ug / skeleton.rst

diff --git a/doc/guides/sample_app_ug/skeleton.rst b/doc/guides/sample_app_ug/skeleton.rst
index c39b033..d3a3712 100644 (file)
--- a/doc/guides/sample_app_ug/skeleton.rst
+++ b/doc/guides/sample_app_ug/skeleton.rst
@@ -1,33 +1,5 @@
-..  BSD LICENSE
-    Copyright(c) 2015 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) 2015 Intel Corporation.
 
 Basic Forwarding Sample Application
 ===================================
@@ -39,33 +11,12 @@ It is intended as a demonstration of the basic components of a DPDK forwarding
 application. For more detailed implementations see the L2 and L3 forwarding
 sample applications.
 
-
 Compiling the Application
 -------------------------
 
-To compile the application export the path to the DPDK source tree and go to
-the example directory:
-
-.. code-block:: console
-
-    export RTE_SDK=/path/to/rte_sdk
-
-    cd ${RTE_SDK}/examples/skeleton
-
-Set the target, 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 as follows:
-
-.. code-block:: console
-
-    make
+To compile the sample application see :doc:`compiling`.
 
+The application is located in the ``skeleton`` sub-directory.
 
 Running the Application
 -----------------------
@@ -130,7 +81,7 @@ The ``main()`` function also initializes all the ports using the user defined
 
 .. code-block:: c
 
-    for (portid = 0; portid < nb_ports; portid++) {
+    RTE_ETH_FOREACH_DEV(portid) {
         if (port_init(portid, mbuf_pool) != 0) {
             rte_exit(EXIT_FAILURE,
                      "Cannot init port %" PRIu8 "\n", portid);
@@ -160,7 +111,7 @@ Forwarding application is shown below:
 .. code-block:: c
 
     static inline int
-    port_init(uint8_t port, struct rte_mempool *mbuf_pool)
+    port_init(uint16_t port, struct rte_mempool *mbuf_pool)
     {
         struct rte_eth_conf port_conf = port_conf_default;
         const uint16_t rx_rings = 1, tx_rings = 1;
@@ -241,14 +192,14 @@ looks like the following:
     static __attribute__((noreturn)) void
     lcore_main(void)
     {
-        const uint8_t nb_ports = rte_eth_dev_count();
-        uint8_t port;
+        const uint16_t nb_ports = rte_eth_dev_count();
+        uint16_t port;
 
         /*
          * Check that the port is on the same NUMA node as the polling thread
          * for best performance.
          */
-        for (port = 0; port < nb_ports; port++)
+        RTE_ETH_FOREACH_DEV(port)
             if (rte_eth_dev_socket_id(port) > 0 &&
                     rte_eth_dev_socket_id(port) !=
                             (int)rte_socket_id())
@@ -265,7 +216,7 @@ looks like the following:
              * Receive packets on a port and forward them on the paired
              * port. The mapping is 0 -> 1, 1 -> 0, 2 -> 3, 3 -> 2, etc.
              */
-            for (port = 0; port < nb_ports; port++) {
+            RTE_ETH_FOREACH_DEV(port) {
 
                 /* Get burst of RX packets, from first port of pair. */
                 struct rte_mbuf *bufs[BURST_SIZE];
@@ -295,7 +246,7 @@ The main work of the application is done within the loop:
 .. code-block:: c
 
         for (;;) {
-            for (port = 0; port < nb_ports; port++) {
+            RTE_ETH_FOREACH_DEV(port) {
 
                 /* Get burst of RX packets, from first port of pair. */
                 struct rte_mbuf *bufs[BURST_SIZE];