-.. 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.
.. code-block:: c
- if (rte_eal_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)
rte_eth_dev_info_get((uint8_t) portid, &dev_info);
}
-Observe that:
-
-* rte_eal_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).
The number of TX queues depends on the number of available lcores.
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;
+ int ret;
RTE_SET_USED(param);
printf("Event type: %s\n", type == RTE_ETH_EVENT_INTR_LSC ? "LSC interrupt" : "unknown event");
- rte_eth_link_get_nowait(port_id, &link);
-
- if (link.link_status) {
+ ret = rte_eth_link_get_nowait(port_id, &link);
+ if (ret < 0) {
+ printf("Failed to get port %d link status: %s\n\n",
+ port_id, rte_strerror(-ret));
+ } else if (link.link_status) {
printf("Port %d Link Up - speed %u Mbps - %s\n\n", port_id, (unsigned)link.link_speed,
(link.link_duplex == ETH_LINK_FULL_DUPLEX) ? ("full-duplex") : ("half-duplex"));
} else
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 */
*((uint64_t *)tmp) = 0x000000000002 + (dst_port << 40);
/* src addr */
- ether_addr_copy(&lsi_ports_eth_addr[dst_port], ð->s_addr);
+ rte_ether_addr_copy(&lsi_ports_eth_addr[dst_port], ð->s_addr);
lsi_send_packet(m, dst_port);
}
/* 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;
git.droids-corp.org / dpdk.git / blobdiff