-.. 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
===================================
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
-----------------------
-To run the example in a ``linuxapp`` environment:
+To run the example in a ``linux`` environment:
.. code-block:: console
- ./build/basicfwd -c 2 -n 4
+ ./build/basicfwd -l 1 -n 4
Refer to *DPDK Getting Started Guide* for general information on running
applications and the Environment Abstraction Layer (EAL) options.
.. 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);
.. 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;
- struct ether_addr addr;
+ struct rte_ether_addr addr;
int retval;
uint16_t q;
- if (port >= rte_eth_dev_count())
+ if (!rte_eth_dev_is_valid_port(port))
return -1;
/* Configure the Ethernet device. */
return retval;
/* Enable RX in promiscuous mode for the Ethernet device. */
- rte_eth_promiscuous_enable(port);
+ retval = rte_eth_promiscuous_enable(port);
+ if (retval != 0)
+ return retval;
return 0;
}
.. code-block:: c
static const struct rte_eth_conf port_conf_default = {
- .rxmode = { .max_rx_pkt_len = ETHER_MAX_LEN }
+ .rxmode = { .max_rx_pkt_len = RTE_ETHER_MAX_LEN }
};
For this example the ports are set up with 1 RX and 1 TX queue using the
.. code-block:: c
- rte_eth_promiscuous_enable(port);
+ retval = rte_eth_promiscuous_enable(port);
The Lcores Main
.. code-block:: c
- static __attribute__((noreturn)) void
+ static __rte_noreturn void
lcore_main(void)
{
- const uint8_t nb_ports = rte_eth_dev_count();
- uint8_t port;
+ 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())
* 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];
.. 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];
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