-.. 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.
Link Status Interrupt Sample Application
========================================
Compiling the Application
-------------------------
-#. Go to the example directory:
+To compile the sample application see :doc:`compiling`.
- .. code-block:: console
-
- export RTE_SDK=/path/to/rte_sdk
- cd ${RTE_SDK}/examples/link_status_interrupt
-
-#. 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
-
-.. note::
-
- The compiled application is written to the build subdirectory.
- To have the application written to a different location,
- the O=/path/to/build/directory option may be specified on the make command line.
+The application is located in the ``link_status_interrupt`` sub-directory.
Running the Application
-----------------------
* -T PERIOD: statistics will be refreshed each PERIOD seconds (0 to disable, 10 default)
-To run the application in a linuxapp environment with 4 lcores, 4 memory channels, 16 ports and 8 RX queues per lcore,
+To run the application in a linux environment with 4 lcores, 4 memory channels, 16 ports and 8 RX queues per lcore,
issue the command:
.. code-block:: console
- $ ./build/link_status_interrupt -c f -n 4-- -q 8 -p ffff
+ $ ./build/link_status_interrupt -l 0-3 -n 4-- -q 8 -p ffff
Refer to the *DPDK Getting Started Guide* for general information on running applications
and the Environment Abstraction Layer (EAL) options.
~~~~~~~~~~~~~~~~~~~~~~
The Link Status Interrupt sample application takes specific parameters,
-in addition to Environment Abstraction Layer (EAL) arguments (see Section 13.3).
+in addition to Environment Abstraction Layer (EAL) arguments (see Section `Running the Application`_).
Command line parsing is done in the same way as it is done in the L2 Forwarding Sample Application.
-See Section 9.4.1, "Command Line Arguments" for more information.
+See :ref:`l2_fwd_app_cmd_arguments` for more information.
Mbuf Pool Initialization
~~~~~~~~~~~~~~~~~~~~~~~~
Mbuf pool initialization is done in the same way as it is done in the L2 Forwarding Sample Application.
-See Section 9.4.2, "Mbuf Pool Initialization" for more information.
+See :ref:`l2_fwd_app_mbuf_init` for more information.
Driver Initialization
~~~~~~~~~~~~~~~~~~~~~
.. code-block:: c
- if (rte_eal_pci_probe() < 0)
+ if (rte_pci_probe() < 0)
rte_exit(EXIT_FAILURE, "Cannot probe PCI\n");
- nb_ports = rte_eth_dev_count();
- if (nb_ports == 0)
- rte_exit(EXIT_FAILURE, "No Ethernet ports - bye\n");
-
- if (nb_ports > RTE_MAX_ETHPORTS)
- nb_ports = RTE_MAX_ETHPORTS;
-
/*
* Each logical core is assigned a dedicated TX queue on each port.
*/
- for (portid = 0; portid < nb_ports; portid++) {
+ RTE_ETH_FOREACH_DEV(portid) {
/* skip ports that are not enabled */
if ((lsi_enabled_port_mask & (1 << portid)) == 0)
Observe that:
-* rte_eal_pci_probe() parses the devices on the PCI bus and initializes recognized devices.
+* rte_pci_probe() parses the devices on the PCI bus and initializes recognized devices.
The next step is to configure the RX and TX queues.
For each port, there is only one RX queue (only one lcore is able to poll a given port).
static const struct rte_eth_conf port_conf = {
.rxmode = {
.split_hdr_size = 0,
- .header_split = 0, /**< Header Split disabled */
- .hw_ip_checksum = 0, /**< IP checksum offload disabled */
- .hw_vlan_filter = 0, /**< VLAN filtering disabled */
- .hw_strip_crc= 0, /**< CRC stripped by hardware */
},
.txmode = {},
.intr_conf = {
.. code-block:: c
static void
- lsi_event_callback(uint8_t port_id, enum rte_eth_event_type type, void *param)
+ lsi_event_callback(uint16_t port_id, enum rte_eth_event_type type, void *param)
{
struct rte_eth_link link;
struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE];
The n_rx_port and rx_port_list[] fields are used in the main packet processing loop
-(see Section 13.4.7, "Receive, Process and Transmit Packets" later in this chapter).
+(see `Receive, Process and Transmit Packets`_).
The global configuration for the RX queues is stored in a static structure:
static void
lsi_simple_forward(struct rte_mbuf *m, unsigned portid)
{
- struct ether_hdr *eth;
+ struct rte_ether_hdr *eth;
void *tmp;
unsigned dst_port = lsi_dst_ports[portid];
- eth = rte_pktmbuf_mtod(m, struct ether_hdr *);
+ eth = rte_pktmbuf_mtod(m, struct rte_ether_hdr *);
/* 02:00:00:00:00:xx */
/* Send the packet on an output interface */
static int
- lsi_send_packet(struct rte_mbuf *m, uint8_t port)
+ lsi_send_packet(struct rte_mbuf *m, uint16_t port)
{
unsigned lcore_id, len;
struct lcore_queue_conf *qconf;
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